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elf32-ppc.c revision 1.1.1.5
      1      1.1  christos /* PowerPC-specific support for 32-bit ELF
      2  1.1.1.5  christos    Copyright (C) 1994-2017 Free Software Foundation, Inc.
      3      1.1  christos    Written by Ian Lance Taylor, Cygnus Support.
      4      1.1  christos 
      5      1.1  christos    This file is part of BFD, the Binary File Descriptor library.
      6      1.1  christos 
      7      1.1  christos    This program is free software; you can redistribute it and/or modify
      8      1.1  christos    it under the terms of the GNU General Public License as published by
      9      1.1  christos    the Free Software Foundation; either version 3 of the License, or
     10      1.1  christos    (at your option) any later version.
     11      1.1  christos 
     12      1.1  christos    This program is distributed in the hope that it will be useful,
     13      1.1  christos    but WITHOUT ANY WARRANTY; without even the implied warranty of
     14      1.1  christos    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15      1.1  christos    GNU General Public License for more details.
     16      1.1  christos 
     17      1.1  christos    You should have received a copy of the GNU General Public License
     18      1.1  christos    along with this program; if not, write to the
     19      1.1  christos    Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
     20      1.1  christos    Boston, MA 02110-1301, USA.  */
     21      1.1  christos 
     22      1.1  christos 
     23      1.1  christos /* This file is based on a preliminary PowerPC ELF ABI.  The
     24      1.1  christos    information may not match the final PowerPC ELF ABI.  It includes
     25      1.1  christos    suggestions from the in-progress Embedded PowerPC ABI, and that
     26      1.1  christos    information may also not match.  */
     27      1.1  christos 
     28      1.1  christos #include "sysdep.h"
     29      1.1  christos #include <stdarg.h>
     30      1.1  christos #include "bfd.h"
     31      1.1  christos #include "bfdlink.h"
     32      1.1  christos #include "libbfd.h"
     33      1.1  christos #include "elf-bfd.h"
     34      1.1  christos #include "elf/ppc.h"
     35      1.1  christos #include "elf32-ppc.h"
     36      1.1  christos #include "elf-vxworks.h"
     37      1.1  christos #include "dwarf2.h"
     38  1.1.1.5  christos #include "opcode/ppc.h"
     39      1.1  christos 
     40      1.1  christos typedef enum split16_format_type
     41      1.1  christos {
     42      1.1  christos   split16a_type = 0,
     43      1.1  christos   split16d_type
     44      1.1  christos }
     45      1.1  christos split16_format_type;
     46      1.1  christos 
     47      1.1  christos /* RELA relocations are used here.  */
     48      1.1  christos 
     49      1.1  christos static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
     50      1.1  christos   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
     51      1.1  christos static bfd_reloc_status_type ppc_elf_unhandled_reloc
     52      1.1  christos   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
     53      1.1  christos 
     54      1.1  christos /* Branch prediction bit for branch taken relocs.  */
     55      1.1  christos #define BRANCH_PREDICT_BIT 0x200000
     56      1.1  christos /* Mask to set RA in memory instructions.  */
     57      1.1  christos #define RA_REGISTER_MASK 0x001f0000
     58      1.1  christos /* Value to shift register by to insert RA.  */
     59      1.1  christos #define RA_REGISTER_SHIFT 16
     60      1.1  christos 
     61      1.1  christos /* The name of the dynamic interpreter.  This is put in the .interp
     62      1.1  christos    section.  */
     63      1.1  christos #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
     64      1.1  christos 
     65      1.1  christos /* For old-style PLT.  */
     66      1.1  christos /* The number of single-slot PLT entries (the rest use two slots).  */
     67      1.1  christos #define PLT_NUM_SINGLE_ENTRIES 8192
     68      1.1  christos 
     69      1.1  christos /* For new-style .glink and .plt.  */
     70      1.1  christos #define GLINK_PLTRESOLVE 16*4
     71      1.1  christos #define GLINK_ENTRY_SIZE 4*4
     72      1.1  christos #define TLS_GET_ADDR_GLINK_SIZE 12*4
     73      1.1  christos 
     74      1.1  christos /* VxWorks uses its own plt layout, filled in by the static linker.  */
     75      1.1  christos 
     76      1.1  christos /* The standard VxWorks PLT entry.  */
     77      1.1  christos #define VXWORKS_PLT_ENTRY_SIZE 32
     78      1.1  christos static const bfd_vma ppc_elf_vxworks_plt_entry
     79      1.1  christos     [VXWORKS_PLT_ENTRY_SIZE / 4] =
     80      1.1  christos   {
     81      1.1  christos     0x3d800000, /* lis     r12,0                 */
     82      1.1  christos     0x818c0000, /* lwz     r12,0(r12)            */
     83      1.1  christos     0x7d8903a6, /* mtctr   r12                   */
     84      1.1  christos     0x4e800420, /* bctr                          */
     85      1.1  christos     0x39600000, /* li      r11,0                 */
     86      1.1  christos     0x48000000, /* b       14 <.PLT0resolve+0x4> */
     87      1.1  christos     0x60000000, /* nop                           */
     88      1.1  christos     0x60000000, /* nop                           */
     89      1.1  christos   };
     90      1.1  christos static const bfd_vma ppc_elf_vxworks_pic_plt_entry
     91      1.1  christos     [VXWORKS_PLT_ENTRY_SIZE / 4] =
     92      1.1  christos   {
     93      1.1  christos     0x3d9e0000, /* addis r12,r30,0 */
     94      1.1  christos     0x818c0000, /* lwz	 r12,0(r12) */
     95      1.1  christos     0x7d8903a6, /* mtctr r12 */
     96      1.1  christos     0x4e800420, /* bctr */
     97      1.1  christos     0x39600000, /* li	 r11,0 */
     98      1.1  christos     0x48000000, /* b	 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
     99      1.1  christos     0x60000000, /* nop */
    100      1.1  christos     0x60000000, /* nop */
    101      1.1  christos   };
    102      1.1  christos 
    103      1.1  christos /* The initial VxWorks PLT entry.  */
    104      1.1  christos #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
    105      1.1  christos static const bfd_vma ppc_elf_vxworks_plt0_entry
    106      1.1  christos     [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
    107      1.1  christos   {
    108      1.1  christos     0x3d800000, /* lis     r12,0        */
    109      1.1  christos     0x398c0000, /* addi    r12,r12,0    */
    110      1.1  christos     0x800c0008, /* lwz     r0,8(r12)    */
    111      1.1  christos     0x7c0903a6, /* mtctr   r0           */
    112      1.1  christos     0x818c0004, /* lwz     r12,4(r12)   */
    113      1.1  christos     0x4e800420, /* bctr                 */
    114      1.1  christos     0x60000000, /* nop                  */
    115      1.1  christos     0x60000000, /* nop                  */
    116      1.1  christos   };
    117      1.1  christos static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
    118      1.1  christos     [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
    119      1.1  christos   {
    120      1.1  christos     0x819e0008, /* lwz	 r12,8(r30) */
    121      1.1  christos     0x7d8903a6, /* mtctr r12        */
    122      1.1  christos     0x819e0004, /* lwz	 r12,4(r30) */
    123      1.1  christos     0x4e800420, /* bctr             */
    124      1.1  christos     0x60000000, /* nop              */
    125      1.1  christos     0x60000000, /* nop              */
    126      1.1  christos     0x60000000, /* nop              */
    127      1.1  christos     0x60000000, /* nop              */
    128      1.1  christos   };
    129      1.1  christos 
    130      1.1  christos /* For executables, we have some additional relocations in
    131      1.1  christos    .rela.plt.unloaded, for the kernel loader.  */
    132      1.1  christos 
    133      1.1  christos /* The number of non-JMP_SLOT relocations per PLT0 slot. */
    134      1.1  christos #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
    135      1.1  christos /* The number of relocations in the PLTResolve slot. */
    136      1.1  christos #define VXWORKS_PLTRESOLVE_RELOCS 2
    137      1.1  christos /* The number of relocations in the PLTResolve slot when when creating
    138      1.1  christos    a shared library. */
    139      1.1  christos #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
    140      1.1  christos 
    141      1.1  christos /* Some instructions.  */
    142      1.1  christos #define ADDIS_11_11	0x3d6b0000
    143      1.1  christos #define ADDIS_11_30	0x3d7e0000
    144      1.1  christos #define ADDIS_12_12	0x3d8c0000
    145      1.1  christos #define ADDI_11_11	0x396b0000
    146      1.1  christos #define ADD_0_11_11	0x7c0b5a14
    147      1.1  christos #define ADD_3_12_2	0x7c6c1214
    148      1.1  christos #define ADD_11_0_11	0x7d605a14
    149      1.1  christos #define B		0x48000000
    150  1.1.1.2  christos #define BA		0x48000002
    151      1.1  christos #define BCL_20_31	0x429f0005
    152      1.1  christos #define BCTR		0x4e800420
    153      1.1  christos #define BEQLR		0x4d820020
    154      1.1  christos #define CMPWI_11_0	0x2c0b0000
    155      1.1  christos #define LIS_11		0x3d600000
    156      1.1  christos #define LIS_12		0x3d800000
    157      1.1  christos #define LWZU_0_12	0x840c0000
    158      1.1  christos #define LWZ_0_12	0x800c0000
    159      1.1  christos #define LWZ_11_3	0x81630000
    160      1.1  christos #define LWZ_11_11	0x816b0000
    161      1.1  christos #define LWZ_11_30	0x817e0000
    162      1.1  christos #define LWZ_12_3	0x81830000
    163      1.1  christos #define LWZ_12_12	0x818c0000
    164      1.1  christos #define MR_0_3		0x7c601b78
    165      1.1  christos #define MR_3_0		0x7c030378
    166      1.1  christos #define MFLR_0		0x7c0802a6
    167      1.1  christos #define MFLR_12		0x7d8802a6
    168      1.1  christos #define MTCTR_0		0x7c0903a6
    169      1.1  christos #define MTCTR_11	0x7d6903a6
    170      1.1  christos #define MTLR_0		0x7c0803a6
    171      1.1  christos #define NOP		0x60000000
    172      1.1  christos #define SUB_11_11_12	0x7d6c5850
    173      1.1  christos 
    174      1.1  christos /* Offset of tp and dtp pointers from start of TLS block.  */
    175      1.1  christos #define TP_OFFSET	0x7000
    176      1.1  christos #define DTP_OFFSET	0x8000
    177      1.1  christos 
    178      1.1  christos /* The value of a defined global symbol.  */
    179      1.1  christos #define SYM_VAL(SYM) \
    180      1.1  christos   ((SYM)->root.u.def.section->output_section->vma	\
    181      1.1  christos    + (SYM)->root.u.def.section->output_offset		\
    182      1.1  christos    + (SYM)->root.u.def.value)
    183      1.1  christos 
    184      1.1  christos static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
    186      1.1  christos 
    187      1.1  christos static reloc_howto_type ppc_elf_howto_raw[] = {
    188      1.1  christos   /* This reloc does nothing.  */
    189      1.1  christos   HOWTO (R_PPC_NONE,		/* type */
    190  1.1.1.3  christos 	 0,			/* rightshift */
    191  1.1.1.3  christos 	 3,			/* size (0 = byte, 1 = short, 2 = long) */
    192      1.1  christos 	 0,			/* bitsize */
    193      1.1  christos 	 FALSE,			/* pc_relative */
    194  1.1.1.2  christos 	 0,			/* bitpos */
    195      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    196      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    197      1.1  christos 	 "R_PPC_NONE",		/* name */
    198      1.1  christos 	 FALSE,			/* partial_inplace */
    199      1.1  christos 	 0,			/* src_mask */
    200      1.1  christos 	 0,			/* dst_mask */
    201      1.1  christos 	 FALSE),		/* pcrel_offset */
    202      1.1  christos 
    203      1.1  christos   /* A standard 32 bit relocation.  */
    204      1.1  christos   HOWTO (R_PPC_ADDR32,		/* type */
    205      1.1  christos 	 0,			/* rightshift */
    206      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    207      1.1  christos 	 32,			/* bitsize */
    208      1.1  christos 	 FALSE,			/* pc_relative */
    209  1.1.1.2  christos 	 0,			/* bitpos */
    210      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    211      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    212      1.1  christos 	 "R_PPC_ADDR32",	/* name */
    213      1.1  christos 	 FALSE,			/* partial_inplace */
    214      1.1  christos 	 0,			/* src_mask */
    215      1.1  christos 	 0xffffffff,		/* dst_mask */
    216      1.1  christos 	 FALSE),		/* pcrel_offset */
    217      1.1  christos 
    218      1.1  christos   /* An absolute 26 bit branch; the lower two bits must be zero.
    219      1.1  christos      FIXME: we don't check that, we just clear them.  */
    220      1.1  christos   HOWTO (R_PPC_ADDR24,		/* type */
    221      1.1  christos 	 0,			/* rightshift */
    222      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    223      1.1  christos 	 26,			/* bitsize */
    224      1.1  christos 	 FALSE,			/* pc_relative */
    225  1.1.1.2  christos 	 0,			/* bitpos */
    226      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    227      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    228      1.1  christos 	 "R_PPC_ADDR24",	/* name */
    229      1.1  christos 	 FALSE,			/* partial_inplace */
    230      1.1  christos 	 0,			/* src_mask */
    231      1.1  christos 	 0x3fffffc,		/* dst_mask */
    232      1.1  christos 	 FALSE),		/* pcrel_offset */
    233      1.1  christos 
    234      1.1  christos   /* A standard 16 bit relocation.  */
    235      1.1  christos   HOWTO (R_PPC_ADDR16,		/* type */
    236      1.1  christos 	 0,			/* rightshift */
    237      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    238      1.1  christos 	 16,			/* bitsize */
    239      1.1  christos 	 FALSE,			/* pc_relative */
    240      1.1  christos 	 0,			/* bitpos */
    241      1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    242      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    243      1.1  christos 	 "R_PPC_ADDR16",	/* name */
    244      1.1  christos 	 FALSE,			/* partial_inplace */
    245      1.1  christos 	 0,			/* src_mask */
    246      1.1  christos 	 0xffff,		/* dst_mask */
    247      1.1  christos 	 FALSE),		/* pcrel_offset */
    248      1.1  christos 
    249      1.1  christos   /* A 16 bit relocation without overflow.  */
    250      1.1  christos   HOWTO (R_PPC_ADDR16_LO,	/* type */
    251      1.1  christos 	 0,			/* rightshift */
    252      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    253      1.1  christos 	 16,			/* bitsize */
    254      1.1  christos 	 FALSE,			/* pc_relative */
    255      1.1  christos 	 0,			/* bitpos */
    256      1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
    257      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    258      1.1  christos 	 "R_PPC_ADDR16_LO",	/* name */
    259      1.1  christos 	 FALSE,			/* partial_inplace */
    260      1.1  christos 	 0,			/* src_mask */
    261      1.1  christos 	 0xffff,		/* dst_mask */
    262      1.1  christos 	 FALSE),		/* pcrel_offset */
    263      1.1  christos 
    264      1.1  christos   /* The high order 16 bits of an address.  */
    265      1.1  christos   HOWTO (R_PPC_ADDR16_HI,	/* type */
    266      1.1  christos 	 16,			/* rightshift */
    267      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    268      1.1  christos 	 16,			/* bitsize */
    269      1.1  christos 	 FALSE,			/* pc_relative */
    270      1.1  christos 	 0,			/* bitpos */
    271      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    272      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    273      1.1  christos 	 "R_PPC_ADDR16_HI",	/* name */
    274      1.1  christos 	 FALSE,			/* partial_inplace */
    275      1.1  christos 	 0,			/* src_mask */
    276      1.1  christos 	 0xffff,		/* dst_mask */
    277      1.1  christos 	 FALSE),		/* pcrel_offset */
    278      1.1  christos 
    279      1.1  christos   /* The high order 16 bits of an address, plus 1 if the contents of
    280      1.1  christos      the low 16 bits, treated as a signed number, is negative.  */
    281      1.1  christos   HOWTO (R_PPC_ADDR16_HA,	/* type */
    282      1.1  christos 	 16,			/* rightshift */
    283      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    284      1.1  christos 	 16,			/* bitsize */
    285      1.1  christos 	 FALSE,			/* pc_relative */
    286      1.1  christos 	 0,			/* bitpos */
    287      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    288      1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
    289      1.1  christos 	 "R_PPC_ADDR16_HA",	/* name */
    290      1.1  christos 	 FALSE,			/* partial_inplace */
    291      1.1  christos 	 0,			/* src_mask */
    292      1.1  christos 	 0xffff,		/* dst_mask */
    293      1.1  christos 	 FALSE),		/* pcrel_offset */
    294      1.1  christos 
    295      1.1  christos   /* An absolute 16 bit branch; the lower two bits must be zero.
    296      1.1  christos      FIXME: we don't check that, we just clear them.  */
    297      1.1  christos   HOWTO (R_PPC_ADDR14,		/* type */
    298      1.1  christos 	 0,			/* rightshift */
    299      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    300      1.1  christos 	 16,			/* bitsize */
    301      1.1  christos 	 FALSE,			/* pc_relative */
    302  1.1.1.2  christos 	 0,			/* bitpos */
    303      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    304      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    305      1.1  christos 	 "R_PPC_ADDR14",	/* name */
    306      1.1  christos 	 FALSE,			/* partial_inplace */
    307      1.1  christos 	 0,			/* src_mask */
    308      1.1  christos 	 0xfffc,		/* dst_mask */
    309      1.1  christos 	 FALSE),		/* pcrel_offset */
    310      1.1  christos 
    311      1.1  christos   /* An absolute 16 bit branch, for which bit 10 should be set to
    312      1.1  christos      indicate that the branch is expected to be taken.	The lower two
    313      1.1  christos      bits must be zero.  */
    314      1.1  christos   HOWTO (R_PPC_ADDR14_BRTAKEN,	/* type */
    315      1.1  christos 	 0,			/* rightshift */
    316      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    317      1.1  christos 	 16,			/* bitsize */
    318      1.1  christos 	 FALSE,			/* pc_relative */
    319  1.1.1.2  christos 	 0,			/* bitpos */
    320      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    321      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    322      1.1  christos 	 "R_PPC_ADDR14_BRTAKEN",/* name */
    323      1.1  christos 	 FALSE,			/* partial_inplace */
    324      1.1  christos 	 0,			/* src_mask */
    325      1.1  christos 	 0xfffc,		/* dst_mask */
    326      1.1  christos 	 FALSE),		/* pcrel_offset */
    327      1.1  christos 
    328      1.1  christos   /* An absolute 16 bit branch, for which bit 10 should be set to
    329      1.1  christos      indicate that the branch is not expected to be taken.  The lower
    330      1.1  christos      two bits must be zero.  */
    331      1.1  christos   HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
    332      1.1  christos 	 0,			/* rightshift */
    333      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    334      1.1  christos 	 16,			/* bitsize */
    335      1.1  christos 	 FALSE,			/* pc_relative */
    336  1.1.1.2  christos 	 0,			/* bitpos */
    337      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    338      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    339      1.1  christos 	 "R_PPC_ADDR14_BRNTAKEN",/* name */
    340      1.1  christos 	 FALSE,			/* partial_inplace */
    341      1.1  christos 	 0,			/* src_mask */
    342      1.1  christos 	 0xfffc,		/* dst_mask */
    343      1.1  christos 	 FALSE),		/* pcrel_offset */
    344      1.1  christos 
    345      1.1  christos   /* A relative 26 bit branch; the lower two bits must be zero.  */
    346      1.1  christos   HOWTO (R_PPC_REL24,		/* type */
    347      1.1  christos 	 0,			/* rightshift */
    348      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    349      1.1  christos 	 26,			/* bitsize */
    350      1.1  christos 	 TRUE,			/* pc_relative */
    351      1.1  christos 	 0,			/* bitpos */
    352      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    353      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    354      1.1  christos 	 "R_PPC_REL24",		/* name */
    355      1.1  christos 	 FALSE,			/* partial_inplace */
    356      1.1  christos 	 0,			/* src_mask */
    357      1.1  christos 	 0x3fffffc,		/* dst_mask */
    358      1.1  christos 	 TRUE),			/* pcrel_offset */
    359      1.1  christos 
    360      1.1  christos   /* A relative 16 bit branch; the lower two bits must be zero.  */
    361      1.1  christos   HOWTO (R_PPC_REL14,		/* type */
    362      1.1  christos 	 0,			/* rightshift */
    363      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    364      1.1  christos 	 16,			/* bitsize */
    365      1.1  christos 	 TRUE,			/* pc_relative */
    366      1.1  christos 	 0,			/* bitpos */
    367      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    368      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    369      1.1  christos 	 "R_PPC_REL14",		/* name */
    370      1.1  christos 	 FALSE,			/* partial_inplace */
    371      1.1  christos 	 0,			/* src_mask */
    372      1.1  christos 	 0xfffc,		/* dst_mask */
    373      1.1  christos 	 TRUE),			/* pcrel_offset */
    374      1.1  christos 
    375      1.1  christos   /* A relative 16 bit branch.  Bit 10 should be set to indicate that
    376      1.1  christos      the branch is expected to be taken.  The lower two bits must be
    377      1.1  christos      zero.  */
    378      1.1  christos   HOWTO (R_PPC_REL14_BRTAKEN,	/* type */
    379      1.1  christos 	 0,			/* rightshift */
    380      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    381      1.1  christos 	 16,			/* bitsize */
    382      1.1  christos 	 TRUE,			/* pc_relative */
    383      1.1  christos 	 0,			/* bitpos */
    384      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    385      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    386      1.1  christos 	 "R_PPC_REL14_BRTAKEN",	/* name */
    387      1.1  christos 	 FALSE,			/* partial_inplace */
    388      1.1  christos 	 0,			/* src_mask */
    389      1.1  christos 	 0xfffc,		/* dst_mask */
    390      1.1  christos 	 TRUE),			/* pcrel_offset */
    391      1.1  christos 
    392      1.1  christos   /* A relative 16 bit branch.  Bit 10 should be set to indicate that
    393      1.1  christos      the branch is not expected to be taken.  The lower two bits must
    394      1.1  christos      be zero.  */
    395      1.1  christos   HOWTO (R_PPC_REL14_BRNTAKEN,	/* type */
    396      1.1  christos 	 0,			/* rightshift */
    397      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    398      1.1  christos 	 16,			/* bitsize */
    399      1.1  christos 	 TRUE,			/* pc_relative */
    400      1.1  christos 	 0,			/* bitpos */
    401      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    402      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    403      1.1  christos 	 "R_PPC_REL14_BRNTAKEN",/* name */
    404      1.1  christos 	 FALSE,			/* partial_inplace */
    405      1.1  christos 	 0,			/* src_mask */
    406      1.1  christos 	 0xfffc,		/* dst_mask */
    407      1.1  christos 	 TRUE),			/* pcrel_offset */
    408      1.1  christos 
    409      1.1  christos   /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
    410      1.1  christos      symbol.  */
    411      1.1  christos   HOWTO (R_PPC_GOT16,		/* type */
    412      1.1  christos 	 0,			/* rightshift */
    413      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    414      1.1  christos 	 16,			/* bitsize */
    415      1.1  christos 	 FALSE,			/* pc_relative */
    416      1.1  christos 	 0,			/* bitpos */
    417  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
    418      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    419      1.1  christos 	 "R_PPC_GOT16",		/* name */
    420      1.1  christos 	 FALSE,			/* partial_inplace */
    421      1.1  christos 	 0,			/* src_mask */
    422      1.1  christos 	 0xffff,		/* dst_mask */
    423      1.1  christos 	 FALSE),		/* pcrel_offset */
    424      1.1  christos 
    425      1.1  christos   /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
    426      1.1  christos      the symbol.  */
    427      1.1  christos   HOWTO (R_PPC_GOT16_LO,	/* type */
    428      1.1  christos 	 0,			/* rightshift */
    429      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    430      1.1  christos 	 16,			/* bitsize */
    431      1.1  christos 	 FALSE,			/* pc_relative */
    432      1.1  christos 	 0,			/* bitpos */
    433  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    434      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    435      1.1  christos 	 "R_PPC_GOT16_LO",	/* name */
    436      1.1  christos 	 FALSE,			/* partial_inplace */
    437      1.1  christos 	 0,			/* src_mask */
    438      1.1  christos 	 0xffff,		/* dst_mask */
    439      1.1  christos 	 FALSE),		/* pcrel_offset */
    440      1.1  christos 
    441      1.1  christos   /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
    442      1.1  christos      the symbol.  */
    443      1.1  christos   HOWTO (R_PPC_GOT16_HI,	/* type */
    444      1.1  christos 	 16,			/* rightshift */
    445      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    446      1.1  christos 	 16,			/* bitsize */
    447      1.1  christos 	 FALSE,			/* pc_relative */
    448  1.1.1.2  christos 	 0,			/* bitpos */
    449  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    450      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    451      1.1  christos 	 "R_PPC_GOT16_HI",	/* name */
    452      1.1  christos 	 FALSE,			/* partial_inplace */
    453      1.1  christos 	 0,			/* src_mask */
    454      1.1  christos 	 0xffff,		/* dst_mask */
    455      1.1  christos 	 FALSE),		 /* pcrel_offset */
    456      1.1  christos 
    457      1.1  christos   /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
    458      1.1  christos      the symbol.  */
    459      1.1  christos   HOWTO (R_PPC_GOT16_HA,	/* type */
    460      1.1  christos 	 16,			/* rightshift */
    461      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    462      1.1  christos 	 16,			/* bitsize */
    463      1.1  christos 	 FALSE,			/* pc_relative */
    464  1.1.1.2  christos 	 0,			/* bitpos */
    465  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    466      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    467      1.1  christos 	 "R_PPC_GOT16_HA",	/* name */
    468      1.1  christos 	 FALSE,			/* partial_inplace */
    469      1.1  christos 	 0,			/* src_mask */
    470      1.1  christos 	 0xffff,		/* dst_mask */
    471      1.1  christos 	 FALSE),		/* pcrel_offset */
    472      1.1  christos 
    473      1.1  christos   /* Like R_PPC_REL24, but referring to the procedure linkage table
    474      1.1  christos      entry for the symbol.  */
    475      1.1  christos   HOWTO (R_PPC_PLTREL24,	/* type */
    476      1.1  christos 	 0,			/* rightshift */
    477      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    478      1.1  christos 	 26,			/* bitsize */
    479      1.1  christos 	 TRUE,			/* pc_relative */
    480  1.1.1.4  christos 	 0,			/* bitpos */
    481  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
    482      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    483      1.1  christos 	 "R_PPC_PLTREL24",	/* name */
    484      1.1  christos 	 FALSE,			/* partial_inplace */
    485      1.1  christos 	 0,			/* src_mask */
    486      1.1  christos 	 0x3fffffc,		/* dst_mask */
    487      1.1  christos 	 TRUE),			/* pcrel_offset */
    488      1.1  christos 
    489      1.1  christos   /* This is used only by the dynamic linker.  The symbol should exist
    490      1.1  christos      both in the object being run and in some shared library.  The
    491      1.1  christos      dynamic linker copies the data addressed by the symbol from the
    492      1.1  christos      shared library into the object, because the object being
    493      1.1  christos      run has to have the data at some particular address.  */
    494      1.1  christos   HOWTO (R_PPC_COPY,		/* type */
    495      1.1  christos 	 0,			/* rightshift */
    496      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    497      1.1  christos 	 32,			/* bitsize */
    498      1.1  christos 	 FALSE,			/* pc_relative */
    499  1.1.1.2  christos 	 0,			/* bitpos */
    500  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    501      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    502      1.1  christos 	 "R_PPC_COPY",		/* name */
    503      1.1  christos 	 FALSE,			/* partial_inplace */
    504      1.1  christos 	 0,			/* src_mask */
    505      1.1  christos 	 0,			/* dst_mask */
    506      1.1  christos 	 FALSE),		/* pcrel_offset */
    507      1.1  christos 
    508      1.1  christos   /* Like R_PPC_ADDR32, but used when setting global offset table
    509      1.1  christos      entries.  */
    510      1.1  christos   HOWTO (R_PPC_GLOB_DAT,	/* type */
    511      1.1  christos 	 0,			/* rightshift */
    512      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    513      1.1  christos 	 32,			/* bitsize */
    514      1.1  christos 	 FALSE,			/* pc_relative */
    515  1.1.1.2  christos 	 0,			/* bitpos */
    516  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    517      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    518      1.1  christos 	 "R_PPC_GLOB_DAT",	/* name */
    519      1.1  christos 	 FALSE,			/* partial_inplace */
    520      1.1  christos 	 0,			/* src_mask */
    521      1.1  christos 	 0xffffffff,		/* dst_mask */
    522      1.1  christos 	 FALSE),		/* pcrel_offset */
    523      1.1  christos 
    524      1.1  christos   /* Marks a procedure linkage table entry for a symbol.  */
    525      1.1  christos   HOWTO (R_PPC_JMP_SLOT,	/* type */
    526      1.1  christos 	 0,			/* rightshift */
    527      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    528      1.1  christos 	 32,			/* bitsize */
    529      1.1  christos 	 FALSE,			/* pc_relative */
    530  1.1.1.2  christos 	 0,			/* bitpos */
    531  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    532      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    533      1.1  christos 	 "R_PPC_JMP_SLOT",	/* name */
    534      1.1  christos 	 FALSE,			/* partial_inplace */
    535      1.1  christos 	 0,			/* src_mask */
    536      1.1  christos 	 0,			/* dst_mask */
    537      1.1  christos 	 FALSE),		/* pcrel_offset */
    538      1.1  christos 
    539      1.1  christos   /* Used only by the dynamic linker.  When the object is run, this
    540      1.1  christos      longword is set to the load address of the object, plus the
    541      1.1  christos      addend.  */
    542      1.1  christos   HOWTO (R_PPC_RELATIVE,	/* type */
    543      1.1  christos 	 0,			/* rightshift */
    544      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    545      1.1  christos 	 32,			/* bitsize */
    546      1.1  christos 	 FALSE,			/* pc_relative */
    547  1.1.1.2  christos 	 0,			/* bitpos */
    548      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    549      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
    550      1.1  christos 	 "R_PPC_RELATIVE",	/* name */
    551      1.1  christos 	 FALSE,			/* partial_inplace */
    552      1.1  christos 	 0,			/* src_mask */
    553      1.1  christos 	 0xffffffff,		/* dst_mask */
    554      1.1  christos 	 FALSE),		/* pcrel_offset */
    555      1.1  christos 
    556      1.1  christos   /* Like R_PPC_REL24, but uses the value of the symbol within the
    557      1.1  christos      object rather than the final value.  Normally used for
    558      1.1  christos      _GLOBAL_OFFSET_TABLE_.  */
    559      1.1  christos   HOWTO (R_PPC_LOCAL24PC,	/* type */
    560      1.1  christos 	 0,			/* rightshift */
    561      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    562      1.1  christos 	 26,			/* bitsize */
    563      1.1  christos 	 TRUE,			/* pc_relative */
    564      1.1  christos 	 0,			/* bitpos */
    565      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    566      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    567      1.1  christos 	 "R_PPC_LOCAL24PC",	/* name */
    568      1.1  christos 	 FALSE,			/* partial_inplace */
    569      1.1  christos 	 0,			/* src_mask */
    570      1.1  christos 	 0x3fffffc,		/* dst_mask */
    571      1.1  christos 	 TRUE),			/* pcrel_offset */
    572      1.1  christos 
    573      1.1  christos   /* Like R_PPC_ADDR32, but may be unaligned.  */
    574      1.1  christos   HOWTO (R_PPC_UADDR32,		/* type */
    575      1.1  christos 	 0,			/* rightshift */
    576      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    577      1.1  christos 	 32,			/* bitsize */
    578      1.1  christos 	 FALSE,			/* pc_relative */
    579  1.1.1.2  christos 	 0,			/* bitpos */
    580      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    581      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    582      1.1  christos 	 "R_PPC_UADDR32",	/* name */
    583      1.1  christos 	 FALSE,			/* partial_inplace */
    584      1.1  christos 	 0,			/* src_mask */
    585      1.1  christos 	 0xffffffff,		/* dst_mask */
    586      1.1  christos 	 FALSE),		/* pcrel_offset */
    587      1.1  christos 
    588      1.1  christos   /* Like R_PPC_ADDR16, but may be unaligned.  */
    589      1.1  christos   HOWTO (R_PPC_UADDR16,		/* type */
    590      1.1  christos 	 0,			/* rightshift */
    591      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    592      1.1  christos 	 16,			/* bitsize */
    593      1.1  christos 	 FALSE,			/* pc_relative */
    594      1.1  christos 	 0,			/* bitpos */
    595      1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    596      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    597      1.1  christos 	 "R_PPC_UADDR16",	/* name */
    598      1.1  christos 	 FALSE,			/* partial_inplace */
    599      1.1  christos 	 0,			/* src_mask */
    600      1.1  christos 	 0xffff,		/* dst_mask */
    601      1.1  christos 	 FALSE),		/* pcrel_offset */
    602      1.1  christos 
    603      1.1  christos   /* 32-bit PC relative */
    604      1.1  christos   HOWTO (R_PPC_REL32,		/* type */
    605      1.1  christos 	 0,			/* rightshift */
    606      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    607      1.1  christos 	 32,			/* bitsize */
    608      1.1  christos 	 TRUE,			/* pc_relative */
    609  1.1.1.2  christos 	 0,			/* bitpos */
    610      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    611      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    612      1.1  christos 	 "R_PPC_REL32",		/* name */
    613      1.1  christos 	 FALSE,			/* partial_inplace */
    614      1.1  christos 	 0,			/* src_mask */
    615      1.1  christos 	 0xffffffff,		/* dst_mask */
    616      1.1  christos 	 TRUE),			/* pcrel_offset */
    617      1.1  christos 
    618      1.1  christos   /* 32-bit relocation to the symbol's procedure linkage table.
    619      1.1  christos      FIXME: not supported.  */
    620      1.1  christos   HOWTO (R_PPC_PLT32,		/* type */
    621      1.1  christos 	 0,			/* rightshift */
    622      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    623      1.1  christos 	 32,			/* bitsize */
    624      1.1  christos 	 FALSE,			/* pc_relative */
    625  1.1.1.2  christos 	 0,			/* bitpos */
    626  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    627      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    628      1.1  christos 	 "R_PPC_PLT32",		/* name */
    629      1.1  christos 	 FALSE,			/* partial_inplace */
    630      1.1  christos 	 0,			/* src_mask */
    631      1.1  christos 	 0,			/* dst_mask */
    632      1.1  christos 	 FALSE),		/* pcrel_offset */
    633      1.1  christos 
    634      1.1  christos   /* 32-bit PC relative relocation to the symbol's procedure linkage table.
    635      1.1  christos      FIXME: not supported.  */
    636      1.1  christos   HOWTO (R_PPC_PLTREL32,	/* type */
    637      1.1  christos 	 0,			/* rightshift */
    638      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    639      1.1  christos 	 32,			/* bitsize */
    640      1.1  christos 	 TRUE,			/* pc_relative */
    641  1.1.1.2  christos 	 0,			/* bitpos */
    642  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    643      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    644      1.1  christos 	 "R_PPC_PLTREL32",	/* name */
    645      1.1  christos 	 FALSE,			/* partial_inplace */
    646      1.1  christos 	 0,			/* src_mask */
    647      1.1  christos 	 0,			/* dst_mask */
    648      1.1  christos 	 TRUE),			/* pcrel_offset */
    649      1.1  christos 
    650      1.1  christos   /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
    651      1.1  christos      the symbol.  */
    652      1.1  christos   HOWTO (R_PPC_PLT16_LO,	/* type */
    653      1.1  christos 	 0,			/* rightshift */
    654      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    655      1.1  christos 	 16,			/* bitsize */
    656      1.1  christos 	 FALSE,			/* pc_relative */
    657      1.1  christos 	 0,			/* bitpos */
    658  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    659      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    660      1.1  christos 	 "R_PPC_PLT16_LO",	/* name */
    661      1.1  christos 	 FALSE,			/* partial_inplace */
    662      1.1  christos 	 0,			/* src_mask */
    663      1.1  christos 	 0xffff,		/* dst_mask */
    664      1.1  christos 	 FALSE),		/* pcrel_offset */
    665      1.1  christos 
    666      1.1  christos   /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
    667      1.1  christos      the symbol.  */
    668      1.1  christos   HOWTO (R_PPC_PLT16_HI,	/* type */
    669      1.1  christos 	 16,			/* rightshift */
    670      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    671      1.1  christos 	 16,			/* bitsize */
    672      1.1  christos 	 FALSE,			/* pc_relative */
    673  1.1.1.2  christos 	 0,			/* bitpos */
    674  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    675      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    676      1.1  christos 	 "R_PPC_PLT16_HI",	/* name */
    677      1.1  christos 	 FALSE,			/* partial_inplace */
    678      1.1  christos 	 0,			/* src_mask */
    679      1.1  christos 	 0xffff,		/* dst_mask */
    680      1.1  christos 	 FALSE),		 /* pcrel_offset */
    681      1.1  christos 
    682      1.1  christos   /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
    683      1.1  christos      the symbol.  */
    684      1.1  christos   HOWTO (R_PPC_PLT16_HA,	/* type */
    685      1.1  christos 	 16,			/* rightshift */
    686      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    687      1.1  christos 	 16,			/* bitsize */
    688      1.1  christos 	 FALSE,			/* pc_relative */
    689  1.1.1.2  christos 	 0,			/* bitpos */
    690  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    691      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    692      1.1  christos 	 "R_PPC_PLT16_HA",	/* name */
    693      1.1  christos 	 FALSE,			/* partial_inplace */
    694      1.1  christos 	 0,			/* src_mask */
    695      1.1  christos 	 0xffff,		/* dst_mask */
    696      1.1  christos 	 FALSE),		/* pcrel_offset */
    697      1.1  christos 
    698      1.1  christos   /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
    699      1.1  christos      small data items.  */
    700      1.1  christos   HOWTO (R_PPC_SDAREL16,	/* type */
    701      1.1  christos 	 0,			/* rightshift */
    702      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    703      1.1  christos 	 16,			/* bitsize */
    704      1.1  christos 	 FALSE,			/* pc_relative */
    705      1.1  christos 	 0,			/* bitpos */
    706  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
    707      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    708      1.1  christos 	 "R_PPC_SDAREL16",	/* name */
    709      1.1  christos 	 FALSE,			/* partial_inplace */
    710      1.1  christos 	 0,			/* src_mask */
    711      1.1  christos 	 0xffff,		/* dst_mask */
    712      1.1  christos 	 FALSE),		/* pcrel_offset */
    713      1.1  christos 
    714      1.1  christos   /* 16-bit section relative relocation.  */
    715      1.1  christos   HOWTO (R_PPC_SECTOFF,		/* type */
    716      1.1  christos 	 0,			/* rightshift */
    717      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    718      1.1  christos 	 16,			/* bitsize */
    719      1.1  christos 	 FALSE,			/* pc_relative */
    720  1.1.1.2  christos 	 0,			/* bitpos */
    721  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
    722      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    723      1.1  christos 	 "R_PPC_SECTOFF",	/* name */
    724      1.1  christos 	 FALSE,			/* partial_inplace */
    725      1.1  christos 	 0,			/* src_mask */
    726      1.1  christos 	 0xffff,		/* dst_mask */
    727      1.1  christos 	 FALSE),		/* pcrel_offset */
    728      1.1  christos 
    729      1.1  christos   /* 16-bit lower half section relative relocation.  */
    730      1.1  christos   HOWTO (R_PPC_SECTOFF_LO,	  /* type */
    731      1.1  christos 	 0,			/* rightshift */
    732      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    733      1.1  christos 	 16,			/* bitsize */
    734      1.1  christos 	 FALSE,			/* pc_relative */
    735      1.1  christos 	 0,			/* bitpos */
    736  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    737      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    738      1.1  christos 	 "R_PPC_SECTOFF_LO",	/* name */
    739      1.1  christos 	 FALSE,			/* partial_inplace */
    740      1.1  christos 	 0,			/* src_mask */
    741      1.1  christos 	 0xffff,		/* dst_mask */
    742      1.1  christos 	 FALSE),		/* pcrel_offset */
    743      1.1  christos 
    744      1.1  christos   /* 16-bit upper half section relative relocation.  */
    745      1.1  christos   HOWTO (R_PPC_SECTOFF_HI,	/* type */
    746      1.1  christos 	 16,			/* rightshift */
    747      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    748      1.1  christos 	 16,			/* bitsize */
    749      1.1  christos 	 FALSE,			/* pc_relative */
    750  1.1.1.2  christos 	 0,			/* bitpos */
    751  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    752      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    753      1.1  christos 	 "R_PPC_SECTOFF_HI",	/* name */
    754      1.1  christos 	 FALSE,			/* partial_inplace */
    755      1.1  christos 	 0,			/* src_mask */
    756      1.1  christos 	 0xffff,		/* dst_mask */
    757      1.1  christos 	 FALSE),		 /* pcrel_offset */
    758      1.1  christos 
    759      1.1  christos   /* 16-bit upper half adjusted section relative relocation.  */
    760      1.1  christos   HOWTO (R_PPC_SECTOFF_HA,	/* type */
    761      1.1  christos 	 16,			/* rightshift */
    762      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    763      1.1  christos 	 16,			/* bitsize */
    764      1.1  christos 	 FALSE,			/* pc_relative */
    765  1.1.1.2  christos 	 0,			/* bitpos */
    766  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
    767      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    768      1.1  christos 	 "R_PPC_SECTOFF_HA",	/* name */
    769      1.1  christos 	 FALSE,			/* partial_inplace */
    770      1.1  christos 	 0,			/* src_mask */
    771      1.1  christos 	 0xffff,		/* dst_mask */
    772      1.1  christos 	 FALSE),		/* pcrel_offset */
    773      1.1  christos 
    774      1.1  christos   /* Marker relocs for TLS.  */
    775      1.1  christos   HOWTO (R_PPC_TLS,
    776      1.1  christos 	 0,			/* rightshift */
    777      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    778      1.1  christos 	 32,			/* bitsize */
    779      1.1  christos 	 FALSE,			/* pc_relative */
    780      1.1  christos 	 0,			/* bitpos */
    781      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    782      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    783      1.1  christos 	 "R_PPC_TLS",		/* name */
    784      1.1  christos 	 FALSE,			/* partial_inplace */
    785      1.1  christos 	 0,			/* src_mask */
    786      1.1  christos 	 0,			/* dst_mask */
    787      1.1  christos 	 FALSE),		/* pcrel_offset */
    788      1.1  christos 
    789      1.1  christos   HOWTO (R_PPC_TLSGD,
    790      1.1  christos 	 0,			/* rightshift */
    791      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    792      1.1  christos 	 32,			/* bitsize */
    793      1.1  christos 	 FALSE,			/* pc_relative */
    794      1.1  christos 	 0,			/* bitpos */
    795      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    796      1.1  christos 	 bfd_elf_generic_reloc, /* special_function */
    797      1.1  christos 	 "R_PPC_TLSGD",		/* name */
    798      1.1  christos 	 FALSE,			/* partial_inplace */
    799      1.1  christos 	 0,			/* src_mask */
    800      1.1  christos 	 0,			/* dst_mask */
    801      1.1  christos 	 FALSE),		/* pcrel_offset */
    802      1.1  christos 
    803      1.1  christos   HOWTO (R_PPC_TLSLD,
    804      1.1  christos 	 0,			/* rightshift */
    805      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    806      1.1  christos 	 32,			/* bitsize */
    807      1.1  christos 	 FALSE,			/* pc_relative */
    808      1.1  christos 	 0,			/* bitpos */
    809      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    810      1.1  christos 	 bfd_elf_generic_reloc, /* special_function */
    811      1.1  christos 	 "R_PPC_TLSLD",		/* name */
    812      1.1  christos 	 FALSE,			/* partial_inplace */
    813      1.1  christos 	 0,			/* src_mask */
    814      1.1  christos 	 0,			/* dst_mask */
    815      1.1  christos 	 FALSE),		/* pcrel_offset */
    816      1.1  christos 
    817      1.1  christos   /* Computes the load module index of the load module that contains the
    818      1.1  christos      definition of its TLS sym.  */
    819      1.1  christos   HOWTO (R_PPC_DTPMOD32,
    820      1.1  christos 	 0,			/* rightshift */
    821      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    822      1.1  christos 	 32,			/* bitsize */
    823      1.1  christos 	 FALSE,			/* pc_relative */
    824      1.1  christos 	 0,			/* bitpos */
    825      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    826      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    827      1.1  christos 	 "R_PPC_DTPMOD32",	/* name */
    828      1.1  christos 	 FALSE,			/* partial_inplace */
    829      1.1  christos 	 0,			/* src_mask */
    830      1.1  christos 	 0xffffffff,		/* dst_mask */
    831      1.1  christos 	 FALSE),		/* pcrel_offset */
    832      1.1  christos 
    833      1.1  christos   /* Computes a dtv-relative displacement, the difference between the value
    834      1.1  christos      of sym+add and the base address of the thread-local storage block that
    835      1.1  christos      contains the definition of sym, minus 0x8000.  */
    836      1.1  christos   HOWTO (R_PPC_DTPREL32,
    837      1.1  christos 	 0,			/* rightshift */
    838      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    839      1.1  christos 	 32,			/* bitsize */
    840      1.1  christos 	 FALSE,			/* pc_relative */
    841      1.1  christos 	 0,			/* bitpos */
    842      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    843      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    844      1.1  christos 	 "R_PPC_DTPREL32",	/* name */
    845      1.1  christos 	 FALSE,			/* partial_inplace */
    846      1.1  christos 	 0,			/* src_mask */
    847      1.1  christos 	 0xffffffff,		/* dst_mask */
    848      1.1  christos 	 FALSE),		/* pcrel_offset */
    849      1.1  christos 
    850      1.1  christos   /* A 16 bit dtprel reloc.  */
    851      1.1  christos   HOWTO (R_PPC_DTPREL16,
    852      1.1  christos 	 0,			/* rightshift */
    853      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    854      1.1  christos 	 16,			/* bitsize */
    855      1.1  christos 	 FALSE,			/* pc_relative */
    856      1.1  christos 	 0,			/* bitpos */
    857      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    858      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    859      1.1  christos 	 "R_PPC_DTPREL16",	/* name */
    860      1.1  christos 	 FALSE,			/* partial_inplace */
    861      1.1  christos 	 0,			/* src_mask */
    862      1.1  christos 	 0xffff,		/* dst_mask */
    863      1.1  christos 	 FALSE),		/* pcrel_offset */
    864      1.1  christos 
    865      1.1  christos   /* Like DTPREL16, but no overflow.  */
    866      1.1  christos   HOWTO (R_PPC_DTPREL16_LO,
    867      1.1  christos 	 0,			/* rightshift */
    868      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    869      1.1  christos 	 16,			/* bitsize */
    870      1.1  christos 	 FALSE,			/* pc_relative */
    871      1.1  christos 	 0,			/* bitpos */
    872      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    873      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    874      1.1  christos 	 "R_PPC_DTPREL16_LO",	/* name */
    875      1.1  christos 	 FALSE,			/* partial_inplace */
    876      1.1  christos 	 0,			/* src_mask */
    877      1.1  christos 	 0xffff,		/* dst_mask */
    878      1.1  christos 	 FALSE),		/* pcrel_offset */
    879      1.1  christos 
    880      1.1  christos   /* Like DTPREL16_LO, but next higher group of 16 bits.  */
    881      1.1  christos   HOWTO (R_PPC_DTPREL16_HI,
    882      1.1  christos 	 16,			/* rightshift */
    883      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    884      1.1  christos 	 16,			/* bitsize */
    885      1.1  christos 	 FALSE,			/* pc_relative */
    886      1.1  christos 	 0,			/* bitpos */
    887      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    888      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    889      1.1  christos 	 "R_PPC_DTPREL16_HI",	/* name */
    890      1.1  christos 	 FALSE,			/* partial_inplace */
    891      1.1  christos 	 0,			/* src_mask */
    892      1.1  christos 	 0xffff,		/* dst_mask */
    893      1.1  christos 	 FALSE),		/* pcrel_offset */
    894      1.1  christos 
    895      1.1  christos   /* Like DTPREL16_HI, but adjust for low 16 bits.  */
    896      1.1  christos   HOWTO (R_PPC_DTPREL16_HA,
    897      1.1  christos 	 16,			/* rightshift */
    898      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    899      1.1  christos 	 16,			/* bitsize */
    900      1.1  christos 	 FALSE,			/* pc_relative */
    901      1.1  christos 	 0,			/* bitpos */
    902      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    903      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    904      1.1  christos 	 "R_PPC_DTPREL16_HA",	/* name */
    905      1.1  christos 	 FALSE,			/* partial_inplace */
    906      1.1  christos 	 0,			/* src_mask */
    907      1.1  christos 	 0xffff,		/* dst_mask */
    908      1.1  christos 	 FALSE),		/* pcrel_offset */
    909      1.1  christos 
    910      1.1  christos   /* Computes a tp-relative displacement, the difference between the value of
    911      1.1  christos      sym+add and the value of the thread pointer (r13).  */
    912      1.1  christos   HOWTO (R_PPC_TPREL32,
    913      1.1  christos 	 0,			/* rightshift */
    914      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    915      1.1  christos 	 32,			/* bitsize */
    916      1.1  christos 	 FALSE,			/* pc_relative */
    917      1.1  christos 	 0,			/* bitpos */
    918      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    919      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    920      1.1  christos 	 "R_PPC_TPREL32",	/* name */
    921      1.1  christos 	 FALSE,			/* partial_inplace */
    922      1.1  christos 	 0,			/* src_mask */
    923      1.1  christos 	 0xffffffff,		/* dst_mask */
    924      1.1  christos 	 FALSE),		/* pcrel_offset */
    925      1.1  christos 
    926      1.1  christos   /* A 16 bit tprel reloc.  */
    927      1.1  christos   HOWTO (R_PPC_TPREL16,
    928      1.1  christos 	 0,			/* rightshift */
    929      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    930      1.1  christos 	 16,			/* bitsize */
    931      1.1  christos 	 FALSE,			/* pc_relative */
    932      1.1  christos 	 0,			/* bitpos */
    933      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    934      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    935      1.1  christos 	 "R_PPC_TPREL16",	/* name */
    936      1.1  christos 	 FALSE,			/* partial_inplace */
    937      1.1  christos 	 0,			/* src_mask */
    938      1.1  christos 	 0xffff,		/* dst_mask */
    939      1.1  christos 	 FALSE),		/* pcrel_offset */
    940      1.1  christos 
    941      1.1  christos   /* Like TPREL16, but no overflow.  */
    942      1.1  christos   HOWTO (R_PPC_TPREL16_LO,
    943      1.1  christos 	 0,			/* rightshift */
    944      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    945      1.1  christos 	 16,			/* bitsize */
    946      1.1  christos 	 FALSE,			/* pc_relative */
    947      1.1  christos 	 0,			/* bitpos */
    948      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    949      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    950      1.1  christos 	 "R_PPC_TPREL16_LO",	/* name */
    951      1.1  christos 	 FALSE,			/* partial_inplace */
    952      1.1  christos 	 0,			/* src_mask */
    953      1.1  christos 	 0xffff,		/* dst_mask */
    954      1.1  christos 	 FALSE),		/* pcrel_offset */
    955      1.1  christos 
    956      1.1  christos   /* Like TPREL16_LO, but next higher group of 16 bits.  */
    957      1.1  christos   HOWTO (R_PPC_TPREL16_HI,
    958      1.1  christos 	 16,			/* rightshift */
    959      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    960      1.1  christos 	 16,			/* bitsize */
    961      1.1  christos 	 FALSE,			/* pc_relative */
    962      1.1  christos 	 0,			/* bitpos */
    963      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    964      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    965      1.1  christos 	 "R_PPC_TPREL16_HI",	/* name */
    966      1.1  christos 	 FALSE,			/* partial_inplace */
    967      1.1  christos 	 0,			/* src_mask */
    968      1.1  christos 	 0xffff,		/* dst_mask */
    969      1.1  christos 	 FALSE),		/* pcrel_offset */
    970      1.1  christos 
    971      1.1  christos   /* Like TPREL16_HI, but adjust for low 16 bits.  */
    972      1.1  christos   HOWTO (R_PPC_TPREL16_HA,
    973      1.1  christos 	 16,			/* rightshift */
    974      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    975      1.1  christos 	 16,			/* bitsize */
    976      1.1  christos 	 FALSE,			/* pc_relative */
    977      1.1  christos 	 0,			/* bitpos */
    978      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    979      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    980      1.1  christos 	 "R_PPC_TPREL16_HA",	/* name */
    981      1.1  christos 	 FALSE,			/* partial_inplace */
    982      1.1  christos 	 0,			/* src_mask */
    983      1.1  christos 	 0xffff,		/* dst_mask */
    984      1.1  christos 	 FALSE),		/* pcrel_offset */
    985      1.1  christos 
    986      1.1  christos   /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
    987      1.1  christos      with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
    988      1.1  christos      to the first entry.  */
    989      1.1  christos   HOWTO (R_PPC_GOT_TLSGD16,
    990      1.1  christos 	 0,			/* rightshift */
    991      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    992      1.1  christos 	 16,			/* bitsize */
    993      1.1  christos 	 FALSE,			/* pc_relative */
    994      1.1  christos 	 0,			/* bitpos */
    995      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    996      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    997      1.1  christos 	 "R_PPC_GOT_TLSGD16",	/* name */
    998      1.1  christos 	 FALSE,			/* partial_inplace */
    999      1.1  christos 	 0,			/* src_mask */
   1000      1.1  christos 	 0xffff,		/* dst_mask */
   1001      1.1  christos 	 FALSE),		/* pcrel_offset */
   1002      1.1  christos 
   1003      1.1  christos   /* Like GOT_TLSGD16, but no overflow.  */
   1004      1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_LO,
   1005      1.1  christos 	 0,			/* rightshift */
   1006      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1007      1.1  christos 	 16,			/* bitsize */
   1008      1.1  christos 	 FALSE,			/* pc_relative */
   1009      1.1  christos 	 0,			/* bitpos */
   1010      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1011      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1012      1.1  christos 	 "R_PPC_GOT_TLSGD16_LO", /* name */
   1013      1.1  christos 	 FALSE,			/* partial_inplace */
   1014      1.1  christos 	 0,			/* src_mask */
   1015      1.1  christos 	 0xffff,		/* dst_mask */
   1016      1.1  christos 	 FALSE),		/* pcrel_offset */
   1017      1.1  christos 
   1018      1.1  christos   /* Like GOT_TLSGD16_LO, but next higher group of 16 bits.  */
   1019      1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_HI,
   1020      1.1  christos 	 16,			/* rightshift */
   1021      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1022      1.1  christos 	 16,			/* bitsize */
   1023      1.1  christos 	 FALSE,			/* pc_relative */
   1024      1.1  christos 	 0,			/* bitpos */
   1025      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1026      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1027      1.1  christos 	 "R_PPC_GOT_TLSGD16_HI", /* name */
   1028      1.1  christos 	 FALSE,			/* partial_inplace */
   1029      1.1  christos 	 0,			/* src_mask */
   1030      1.1  christos 	 0xffff,		/* dst_mask */
   1031      1.1  christos 	 FALSE),		/* pcrel_offset */
   1032      1.1  christos 
   1033      1.1  christos   /* Like GOT_TLSGD16_HI, but adjust for low 16 bits.  */
   1034      1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_HA,
   1035      1.1  christos 	 16,			/* rightshift */
   1036      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1037      1.1  christos 	 16,			/* bitsize */
   1038      1.1  christos 	 FALSE,			/* pc_relative */
   1039      1.1  christos 	 0,			/* bitpos */
   1040      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1041      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1042      1.1  christos 	 "R_PPC_GOT_TLSGD16_HA", /* name */
   1043      1.1  christos 	 FALSE,			/* partial_inplace */
   1044      1.1  christos 	 0,			/* src_mask */
   1045      1.1  christos 	 0xffff,		/* dst_mask */
   1046      1.1  christos 	 FALSE),		/* pcrel_offset */
   1047      1.1  christos 
   1048      1.1  christos   /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
   1049      1.1  christos      with values (sym+add)@dtpmod and zero, and computes the offset to the
   1050      1.1  christos      first entry.  */
   1051      1.1  christos   HOWTO (R_PPC_GOT_TLSLD16,
   1052      1.1  christos 	 0,			/* rightshift */
   1053      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1054      1.1  christos 	 16,			/* bitsize */
   1055      1.1  christos 	 FALSE,			/* pc_relative */
   1056      1.1  christos 	 0,			/* bitpos */
   1057      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1058      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1059      1.1  christos 	 "R_PPC_GOT_TLSLD16",	/* name */
   1060      1.1  christos 	 FALSE,			/* partial_inplace */
   1061      1.1  christos 	 0,			/* src_mask */
   1062      1.1  christos 	 0xffff,		/* dst_mask */
   1063      1.1  christos 	 FALSE),		/* pcrel_offset */
   1064      1.1  christos 
   1065      1.1  christos   /* Like GOT_TLSLD16, but no overflow.  */
   1066      1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_LO,
   1067      1.1  christos 	 0,			/* rightshift */
   1068      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1069      1.1  christos 	 16,			/* bitsize */
   1070      1.1  christos 	 FALSE,			/* pc_relative */
   1071      1.1  christos 	 0,			/* bitpos */
   1072      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1073      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1074      1.1  christos 	 "R_PPC_GOT_TLSLD16_LO", /* name */
   1075      1.1  christos 	 FALSE,			/* partial_inplace */
   1076      1.1  christos 	 0,			/* src_mask */
   1077      1.1  christos 	 0xffff,		/* dst_mask */
   1078      1.1  christos 	 FALSE),		/* pcrel_offset */
   1079      1.1  christos 
   1080      1.1  christos   /* Like GOT_TLSLD16_LO, but next higher group of 16 bits.  */
   1081      1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_HI,
   1082      1.1  christos 	 16,			/* rightshift */
   1083      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1084      1.1  christos 	 16,			/* bitsize */
   1085      1.1  christos 	 FALSE,			/* pc_relative */
   1086      1.1  christos 	 0,			/* bitpos */
   1087      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1088      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1089      1.1  christos 	 "R_PPC_GOT_TLSLD16_HI", /* name */
   1090      1.1  christos 	 FALSE,			/* partial_inplace */
   1091      1.1  christos 	 0,			/* src_mask */
   1092      1.1  christos 	 0xffff,		/* dst_mask */
   1093      1.1  christos 	 FALSE),		/* pcrel_offset */
   1094      1.1  christos 
   1095      1.1  christos   /* Like GOT_TLSLD16_HI, but adjust for low 16 bits.  */
   1096      1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_HA,
   1097      1.1  christos 	 16,			/* rightshift */
   1098      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1099      1.1  christos 	 16,			/* bitsize */
   1100      1.1  christos 	 FALSE,			/* pc_relative */
   1101      1.1  christos 	 0,			/* bitpos */
   1102      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1103      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1104      1.1  christos 	 "R_PPC_GOT_TLSLD16_HA", /* name */
   1105      1.1  christos 	 FALSE,			/* partial_inplace */
   1106      1.1  christos 	 0,			/* src_mask */
   1107      1.1  christos 	 0xffff,		/* dst_mask */
   1108      1.1  christos 	 FALSE),		/* pcrel_offset */
   1109      1.1  christos 
   1110      1.1  christos   /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
   1111      1.1  christos      the offset to the entry.  */
   1112      1.1  christos   HOWTO (R_PPC_GOT_DTPREL16,
   1113      1.1  christos 	 0,			/* rightshift */
   1114      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1115      1.1  christos 	 16,			/* bitsize */
   1116      1.1  christos 	 FALSE,			/* pc_relative */
   1117      1.1  christos 	 0,			/* bitpos */
   1118      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1119      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1120      1.1  christos 	 "R_PPC_GOT_DTPREL16",	/* name */
   1121      1.1  christos 	 FALSE,			/* partial_inplace */
   1122      1.1  christos 	 0,			/* src_mask */
   1123      1.1  christos 	 0xffff,		/* dst_mask */
   1124      1.1  christos 	 FALSE),		/* pcrel_offset */
   1125      1.1  christos 
   1126      1.1  christos   /* Like GOT_DTPREL16, but no overflow.  */
   1127      1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_LO,
   1128      1.1  christos 	 0,			/* rightshift */
   1129      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1130      1.1  christos 	 16,			/* bitsize */
   1131      1.1  christos 	 FALSE,			/* pc_relative */
   1132      1.1  christos 	 0,			/* bitpos */
   1133      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1134      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1135      1.1  christos 	 "R_PPC_GOT_DTPREL16_LO", /* name */
   1136      1.1  christos 	 FALSE,			/* partial_inplace */
   1137      1.1  christos 	 0,			/* src_mask */
   1138      1.1  christos 	 0xffff,		/* dst_mask */
   1139      1.1  christos 	 FALSE),		/* pcrel_offset */
   1140      1.1  christos 
   1141      1.1  christos   /* Like GOT_DTPREL16_LO, but next higher group of 16 bits.  */
   1142      1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_HI,
   1143      1.1  christos 	 16,			/* rightshift */
   1144      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1145      1.1  christos 	 16,			/* bitsize */
   1146      1.1  christos 	 FALSE,			/* pc_relative */
   1147      1.1  christos 	 0,			/* bitpos */
   1148      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1149      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1150      1.1  christos 	 "R_PPC_GOT_DTPREL16_HI", /* name */
   1151      1.1  christos 	 FALSE,			/* partial_inplace */
   1152      1.1  christos 	 0,			/* src_mask */
   1153      1.1  christos 	 0xffff,		/* dst_mask */
   1154      1.1  christos 	 FALSE),		/* pcrel_offset */
   1155      1.1  christos 
   1156      1.1  christos   /* Like GOT_DTPREL16_HI, but adjust for low 16 bits.  */
   1157      1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_HA,
   1158      1.1  christos 	 16,			/* rightshift */
   1159      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1160      1.1  christos 	 16,			/* bitsize */
   1161      1.1  christos 	 FALSE,			/* pc_relative */
   1162      1.1  christos 	 0,			/* bitpos */
   1163      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1164      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1165      1.1  christos 	 "R_PPC_GOT_DTPREL16_HA", /* name */
   1166      1.1  christos 	 FALSE,			/* partial_inplace */
   1167      1.1  christos 	 0,			/* src_mask */
   1168      1.1  christos 	 0xffff,		/* dst_mask */
   1169      1.1  christos 	 FALSE),		/* pcrel_offset */
   1170      1.1  christos 
   1171      1.1  christos   /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
   1172      1.1  christos      offset to the entry.  */
   1173      1.1  christos   HOWTO (R_PPC_GOT_TPREL16,
   1174      1.1  christos 	 0,			/* rightshift */
   1175      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1176      1.1  christos 	 16,			/* bitsize */
   1177      1.1  christos 	 FALSE,			/* pc_relative */
   1178      1.1  christos 	 0,			/* bitpos */
   1179      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1180      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1181      1.1  christos 	 "R_PPC_GOT_TPREL16",	/* name */
   1182      1.1  christos 	 FALSE,			/* partial_inplace */
   1183      1.1  christos 	 0,			/* src_mask */
   1184      1.1  christos 	 0xffff,		/* dst_mask */
   1185      1.1  christos 	 FALSE),		/* pcrel_offset */
   1186      1.1  christos 
   1187      1.1  christos   /* Like GOT_TPREL16, but no overflow.  */
   1188      1.1  christos   HOWTO (R_PPC_GOT_TPREL16_LO,
   1189      1.1  christos 	 0,			/* rightshift */
   1190      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1191      1.1  christos 	 16,			/* bitsize */
   1192      1.1  christos 	 FALSE,			/* pc_relative */
   1193      1.1  christos 	 0,			/* bitpos */
   1194      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1195      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1196      1.1  christos 	 "R_PPC_GOT_TPREL16_LO", /* name */
   1197      1.1  christos 	 FALSE,			/* partial_inplace */
   1198      1.1  christos 	 0,			/* src_mask */
   1199      1.1  christos 	 0xffff,		/* dst_mask */
   1200      1.1  christos 	 FALSE),		/* pcrel_offset */
   1201      1.1  christos 
   1202      1.1  christos   /* Like GOT_TPREL16_LO, but next higher group of 16 bits.  */
   1203      1.1  christos   HOWTO (R_PPC_GOT_TPREL16_HI,
   1204      1.1  christos 	 16,			/* rightshift */
   1205      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1206      1.1  christos 	 16,			/* bitsize */
   1207      1.1  christos 	 FALSE,			/* pc_relative */
   1208      1.1  christos 	 0,			/* bitpos */
   1209      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1210      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1211      1.1  christos 	 "R_PPC_GOT_TPREL16_HI", /* name */
   1212      1.1  christos 	 FALSE,			/* partial_inplace */
   1213      1.1  christos 	 0,			/* src_mask */
   1214      1.1  christos 	 0xffff,		/* dst_mask */
   1215      1.1  christos 	 FALSE),		/* pcrel_offset */
   1216      1.1  christos 
   1217      1.1  christos   /* Like GOT_TPREL16_HI, but adjust for low 16 bits.  */
   1218      1.1  christos   HOWTO (R_PPC_GOT_TPREL16_HA,
   1219      1.1  christos 	 16,			/* rightshift */
   1220      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1221      1.1  christos 	 16,			/* bitsize */
   1222      1.1  christos 	 FALSE,			/* pc_relative */
   1223      1.1  christos 	 0,			/* bitpos */
   1224      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1225      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1226      1.1  christos 	 "R_PPC_GOT_TPREL16_HA", /* name */
   1227      1.1  christos 	 FALSE,			/* partial_inplace */
   1228      1.1  christos 	 0,			/* src_mask */
   1229      1.1  christos 	 0xffff,		/* dst_mask */
   1230      1.1  christos 	 FALSE),		/* pcrel_offset */
   1231      1.1  christos 
   1232      1.1  christos   /* The remaining relocs are from the Embedded ELF ABI, and are not
   1233      1.1  christos      in the SVR4 ELF ABI.  */
   1234      1.1  christos 
   1235      1.1  christos   /* 32 bit value resulting from the addend minus the symbol.  */
   1236      1.1  christos   HOWTO (R_PPC_EMB_NADDR32,	/* type */
   1237      1.1  christos 	 0,			/* rightshift */
   1238      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1239      1.1  christos 	 32,			/* bitsize */
   1240      1.1  christos 	 FALSE,			/* pc_relative */
   1241  1.1.1.2  christos 	 0,			/* bitpos */
   1242  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1243      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1244      1.1  christos 	 "R_PPC_EMB_NADDR32",	/* name */
   1245      1.1  christos 	 FALSE,			/* partial_inplace */
   1246      1.1  christos 	 0,			/* src_mask */
   1247      1.1  christos 	 0xffffffff,		/* dst_mask */
   1248      1.1  christos 	 FALSE),		/* pcrel_offset */
   1249      1.1  christos 
   1250      1.1  christos   /* 16 bit value resulting from the addend minus the symbol.  */
   1251      1.1  christos   HOWTO (R_PPC_EMB_NADDR16,	/* type */
   1252      1.1  christos 	 0,			/* rightshift */
   1253      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1254      1.1  christos 	 16,			/* bitsize */
   1255      1.1  christos 	 FALSE,			/* pc_relative */
   1256  1.1.1.2  christos 	 0,			/* bitpos */
   1257  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1258      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1259      1.1  christos 	 "R_PPC_EMB_NADDR16",	/* name */
   1260      1.1  christos 	 FALSE,			/* partial_inplace */
   1261      1.1  christos 	 0,			/* src_mask */
   1262      1.1  christos 	 0xffff,		/* dst_mask */
   1263      1.1  christos 	 FALSE),		/* pcrel_offset */
   1264      1.1  christos 
   1265      1.1  christos   /* 16 bit value resulting from the addend minus the symbol.  */
   1266      1.1  christos   HOWTO (R_PPC_EMB_NADDR16_LO,	/* type */
   1267      1.1  christos 	 0,			/* rightshift */
   1268      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1269      1.1  christos 	 16,			/* bitsize */
   1270      1.1  christos 	 FALSE,			/* pc_relative */
   1271      1.1  christos 	 0,			/* bitpos */
   1272  1.1.1.4  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1273      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1274      1.1  christos 	 "R_PPC_EMB_ADDR16_LO",	/* name */
   1275      1.1  christos 	 FALSE,			/* partial_inplace */
   1276      1.1  christos 	 0,			/* src_mask */
   1277      1.1  christos 	 0xffff,		/* dst_mask */
   1278      1.1  christos 	 FALSE),		/* pcrel_offset */
   1279      1.1  christos 
   1280      1.1  christos   /* The high order 16 bits of the addend minus the symbol.  */
   1281      1.1  christos   HOWTO (R_PPC_EMB_NADDR16_HI,	/* type */
   1282      1.1  christos 	 16,			/* rightshift */
   1283      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1284      1.1  christos 	 16,			/* bitsize */
   1285      1.1  christos 	 FALSE,			/* pc_relative */
   1286      1.1  christos 	 0,			/* bitpos */
   1287  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1288      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1289      1.1  christos 	 "R_PPC_EMB_NADDR16_HI", /* name */
   1290      1.1  christos 	 FALSE,			/* partial_inplace */
   1291      1.1  christos 	 0,			/* src_mask */
   1292      1.1  christos 	 0xffff,		/* dst_mask */
   1293      1.1  christos 	 FALSE),		/* pcrel_offset */
   1294      1.1  christos 
   1295      1.1  christos   /* The high order 16 bits of the result of the addend minus the address,
   1296      1.1  christos      plus 1 if the contents of the low 16 bits, treated as a signed number,
   1297      1.1  christos      is negative.  */
   1298      1.1  christos   HOWTO (R_PPC_EMB_NADDR16_HA,	/* type */
   1299      1.1  christos 	 16,			/* rightshift */
   1300      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1301      1.1  christos 	 16,			/* bitsize */
   1302      1.1  christos 	 FALSE,			/* pc_relative */
   1303      1.1  christos 	 0,			/* bitpos */
   1304  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1305      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1306      1.1  christos 	 "R_PPC_EMB_NADDR16_HA", /* name */
   1307      1.1  christos 	 FALSE,			/* partial_inplace */
   1308      1.1  christos 	 0,			/* src_mask */
   1309      1.1  christos 	 0xffff,		/* dst_mask */
   1310      1.1  christos 	 FALSE),		/* pcrel_offset */
   1311      1.1  christos 
   1312      1.1  christos   /* 16 bit value resulting from allocating a 4 byte word to hold an
   1313      1.1  christos      address in the .sdata section, and returning the offset from
   1314      1.1  christos      _SDA_BASE_ for that relocation.  */
   1315      1.1  christos   HOWTO (R_PPC_EMB_SDAI16,	/* type */
   1316      1.1  christos 	 0,			/* rightshift */
   1317      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1318      1.1  christos 	 16,			/* bitsize */
   1319      1.1  christos 	 FALSE,			/* pc_relative */
   1320      1.1  christos 	 0,			/* bitpos */
   1321  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1322      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1323      1.1  christos 	 "R_PPC_EMB_SDAI16",	/* name */
   1324      1.1  christos 	 FALSE,			/* partial_inplace */
   1325      1.1  christos 	 0,			/* src_mask */
   1326      1.1  christos 	 0xffff,		/* dst_mask */
   1327      1.1  christos 	 FALSE),		/* pcrel_offset */
   1328      1.1  christos 
   1329      1.1  christos   /* 16 bit value resulting from allocating a 4 byte word to hold an
   1330      1.1  christos      address in the .sdata2 section, and returning the offset from
   1331      1.1  christos      _SDA2_BASE_ for that relocation.  */
   1332      1.1  christos   HOWTO (R_PPC_EMB_SDA2I16,	/* type */
   1333      1.1  christos 	 0,			/* rightshift */
   1334      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1335      1.1  christos 	 16,			/* bitsize */
   1336      1.1  christos 	 FALSE,			/* pc_relative */
   1337      1.1  christos 	 0,			/* bitpos */
   1338  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1339      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1340      1.1  christos 	 "R_PPC_EMB_SDA2I16",	/* name */
   1341      1.1  christos 	 FALSE,			/* partial_inplace */
   1342      1.1  christos 	 0,			/* src_mask */
   1343      1.1  christos 	 0xffff,		/* dst_mask */
   1344      1.1  christos 	 FALSE),		/* pcrel_offset */
   1345      1.1  christos 
   1346      1.1  christos   /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
   1347      1.1  christos      small data items.	 */
   1348      1.1  christos   HOWTO (R_PPC_EMB_SDA2REL,	/* type */
   1349      1.1  christos 	 0,			/* rightshift */
   1350      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1351      1.1  christos 	 16,			/* bitsize */
   1352      1.1  christos 	 FALSE,			/* pc_relative */
   1353      1.1  christos 	 0,			/* bitpos */
   1354  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1355      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1356      1.1  christos 	 "R_PPC_EMB_SDA2REL",	/* name */
   1357      1.1  christos 	 FALSE,			/* partial_inplace */
   1358      1.1  christos 	 0,			/* src_mask */
   1359      1.1  christos 	 0xffff,		/* dst_mask */
   1360      1.1  christos 	 FALSE),		/* pcrel_offset */
   1361      1.1  christos 
   1362      1.1  christos   /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
   1363      1.1  christos      signed offset from the appropriate base, and filling in the register
   1364      1.1  christos      field with the appropriate register (0, 2, or 13).  */
   1365      1.1  christos   HOWTO (R_PPC_EMB_SDA21,	/* type */
   1366      1.1  christos 	 0,			/* rightshift */
   1367      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1368      1.1  christos 	 16,			/* bitsize */
   1369      1.1  christos 	 FALSE,			/* pc_relative */
   1370      1.1  christos 	 0,			/* bitpos */
   1371  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1372      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1373      1.1  christos 	 "R_PPC_EMB_SDA21",	/* name */
   1374      1.1  christos 	 FALSE,			/* partial_inplace */
   1375      1.1  christos 	 0,			/* src_mask */
   1376      1.1  christos 	 0xffff,		/* dst_mask */
   1377      1.1  christos 	 FALSE),		/* pcrel_offset */
   1378      1.1  christos 
   1379      1.1  christos   /* Relocation not handled: R_PPC_EMB_MRKREF */
   1380      1.1  christos   /* Relocation not handled: R_PPC_EMB_RELSEC16 */
   1381      1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_LO */
   1382      1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_HI */
   1383      1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_HA */
   1384      1.1  christos   /* Relocation not handled: R_PPC_EMB_BIT_FLD */
   1385      1.1  christos 
   1386      1.1  christos   /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
   1387      1.1  christos      in the 16 bit signed offset from the appropriate base, and filling in the
   1388      1.1  christos      register field with the appropriate register (0, 2, or 13).  */
   1389      1.1  christos   HOWTO (R_PPC_EMB_RELSDA,	/* type */
   1390      1.1  christos 	 0,			/* rightshift */
   1391      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1392      1.1  christos 	 16,			/* bitsize */
   1393      1.1  christos 	 FALSE,			/* pc_relative */
   1394      1.1  christos 	 0,			/* bitpos */
   1395  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1396      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1397      1.1  christos 	 "R_PPC_EMB_RELSDA",	/* name */
   1398      1.1  christos 	 FALSE,			/* partial_inplace */
   1399      1.1  christos 	 0,			/* src_mask */
   1400      1.1  christos 	 0xffff,		/* dst_mask */
   1401      1.1  christos 	 FALSE),		/* pcrel_offset */
   1402      1.1  christos 
   1403      1.1  christos   /* A relative 8 bit branch.  */
   1404      1.1  christos   HOWTO (R_PPC_VLE_REL8,	/* type */
   1405      1.1  christos 	 1,			/* rightshift */
   1406      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1407      1.1  christos 	 8,			/* bitsize */
   1408      1.1  christos 	 TRUE,			/* pc_relative */
   1409      1.1  christos 	 0,			/* bitpos */
   1410      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1411      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1412      1.1  christos 	 "R_PPC_VLE_REL8",	/* name */
   1413      1.1  christos 	 FALSE,			/* partial_inplace */
   1414      1.1  christos 	 0,			/* src_mask */
   1415      1.1  christos 	 0xff,			/* dst_mask */
   1416      1.1  christos 	 TRUE),			/* pcrel_offset */
   1417      1.1  christos 
   1418      1.1  christos   /* A relative 15 bit branch.  */
   1419      1.1  christos   HOWTO (R_PPC_VLE_REL15,	/* type */
   1420      1.1  christos 	 1,			/* rightshift */
   1421      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1422      1.1  christos 	 15,			/* bitsize */
   1423      1.1  christos 	 TRUE,			/* pc_relative */
   1424      1.1  christos 	 1,			/* bitpos */
   1425      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1426      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1427      1.1  christos 	 "R_PPC_VLE_REL15",	/* name */
   1428      1.1  christos 	 FALSE,			/* partial_inplace */
   1429  1.1.1.5  christos 	 0,			/* src_mask */
   1430      1.1  christos 	 0xfffe,		/* dst_mask */
   1431      1.1  christos 	 TRUE),			/* pcrel_offset */
   1432      1.1  christos 
   1433      1.1  christos   /* A relative 24 bit branch.  */
   1434      1.1  christos   HOWTO (R_PPC_VLE_REL24,	/* type */
   1435      1.1  christos 	 1,			/* rightshift */
   1436      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1437      1.1  christos 	 24,			/* bitsize */
   1438      1.1  christos 	 TRUE,			/* pc_relative */
   1439      1.1  christos 	 1,			/* bitpos */
   1440      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1441      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1442      1.1  christos 	 "R_PPC_VLE_REL24",	/* name */
   1443      1.1  christos 	 FALSE,			/* partial_inplace */
   1444      1.1  christos 	 0,			/* src_mask */
   1445      1.1  christos 	 0x1fffffe,		/* dst_mask */
   1446      1.1  christos 	 TRUE),			/* pcrel_offset */
   1447      1.1  christos 
   1448      1.1  christos   /* The 16 LSBS in split16a format.  */
   1449      1.1  christos   HOWTO (R_PPC_VLE_LO16A,	/* type */
   1450      1.1  christos 	 0,			/* rightshift */
   1451  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1452      1.1  christos 	 16,			/* bitsize */
   1453      1.1  christos 	 FALSE,			/* pc_relative */
   1454  1.1.1.2  christos 	 0,			/* bitpos */
   1455  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1456      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1457      1.1  christos 	 "R_PPC_VLE_LO16A",	/* name */
   1458      1.1  christos 	 FALSE,			/* partial_inplace */
   1459  1.1.1.5  christos 	 0,			/* src_mask */
   1460      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1461      1.1  christos 	 FALSE),		/* pcrel_offset */
   1462      1.1  christos 
   1463      1.1  christos   /* The 16 LSBS in split16d format.  */
   1464      1.1  christos   HOWTO (R_PPC_VLE_LO16D,	/* type */
   1465      1.1  christos 	 0,			/* rightshift */
   1466  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1467      1.1  christos 	 16,			/* bitsize */
   1468      1.1  christos 	 FALSE,			/* pc_relative */
   1469  1.1.1.2  christos 	 0,			/* bitpos */
   1470  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1471  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1472      1.1  christos 	 "R_PPC_VLE_LO16D",	/* name */
   1473      1.1  christos 	 FALSE,			/* partial_inplace */
   1474  1.1.1.5  christos 	 0,			/* src_mask */
   1475      1.1  christos 	 0x3e007ff,		/* dst_mask */
   1476      1.1  christos 	 FALSE),		/* pcrel_offset */
   1477      1.1  christos 
   1478      1.1  christos   /* Bits 16-31 split16a format.  */
   1479  1.1.1.2  christos   HOWTO (R_PPC_VLE_HI16A,	/* type */
   1480      1.1  christos 	 16,			/* rightshift */
   1481  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1482      1.1  christos 	 16,			/* bitsize */
   1483      1.1  christos 	 FALSE,			/* pc_relative */
   1484  1.1.1.2  christos 	 0,			/* bitpos */
   1485  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1486  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1487      1.1  christos 	 "R_PPC_VLE_HI16A",	/* name */
   1488      1.1  christos 	 FALSE,			/* partial_inplace */
   1489  1.1.1.5  christos 	 0,			/* src_mask */
   1490      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1491      1.1  christos 	 FALSE),		/* pcrel_offset */
   1492      1.1  christos 
   1493      1.1  christos   /* Bits 16-31 split16d format.  */
   1494  1.1.1.2  christos   HOWTO (R_PPC_VLE_HI16D,	/* type */
   1495      1.1  christos 	 16,			/* rightshift */
   1496  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1497      1.1  christos 	 16,			/* bitsize */
   1498      1.1  christos 	 FALSE,			/* pc_relative */
   1499  1.1.1.2  christos 	 0,			/* bitpos */
   1500  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1501  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1502      1.1  christos 	 "R_PPC_VLE_HI16D",	/* name */
   1503      1.1  christos 	 FALSE,			/* partial_inplace */
   1504  1.1.1.5  christos 	 0,			/* src_mask */
   1505      1.1  christos 	 0x3e007ff,		/* dst_mask */
   1506      1.1  christos 	 FALSE),		/* pcrel_offset */
   1507      1.1  christos 
   1508      1.1  christos   /* Bits 16-31 (High Adjusted) in split16a format.  */
   1509  1.1.1.2  christos   HOWTO (R_PPC_VLE_HA16A,	/* type */
   1510      1.1  christos 	 16,			/* rightshift */
   1511  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1512      1.1  christos 	 16,			/* bitsize */
   1513      1.1  christos 	 FALSE,			/* pc_relative */
   1514  1.1.1.2  christos 	 0,			/* bitpos */
   1515  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1516  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1517      1.1  christos 	 "R_PPC_VLE_HA16A",	/* name */
   1518      1.1  christos 	 FALSE,			/* partial_inplace */
   1519  1.1.1.5  christos 	 0,			/* src_mask */
   1520      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1521      1.1  christos 	 FALSE),		/* pcrel_offset */
   1522      1.1  christos 
   1523      1.1  christos   /* Bits 16-31 (High Adjusted) in split16d format.  */
   1524  1.1.1.2  christos   HOWTO (R_PPC_VLE_HA16D,	/* type */
   1525      1.1  christos 	 16,			/* rightshift */
   1526  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1527      1.1  christos 	 16,			/* bitsize */
   1528      1.1  christos 	 FALSE,			/* pc_relative */
   1529  1.1.1.2  christos 	 0,			/* bitpos */
   1530  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1531  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1532      1.1  christos 	 "R_PPC_VLE_HA16D",	/* name */
   1533      1.1  christos 	 FALSE,			/* partial_inplace */
   1534  1.1.1.5  christos 	 0,			/* src_mask */
   1535      1.1  christos 	 0x3e007ff,		/* dst_mask */
   1536      1.1  christos 	 FALSE),		/* pcrel_offset */
   1537  1.1.1.2  christos 
   1538  1.1.1.2  christos   /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
   1539  1.1.1.2  christos      instructions.  If the register base is 0 then the linker changes
   1540  1.1.1.2  christos      the e_add16i to an e_li instruction.  */
   1541      1.1  christos   HOWTO (R_PPC_VLE_SDA21,	/* type */
   1542      1.1  christos 	 0,			/* rightshift */
   1543  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1544      1.1  christos 	 16,			/* bitsize */
   1545      1.1  christos 	 FALSE,			/* pc_relative */
   1546  1.1.1.2  christos 	 0,			/* bitpos */
   1547  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1548  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1549      1.1  christos 	 "R_PPC_VLE_SDA21",	/* name */
   1550      1.1  christos 	 FALSE,			/* partial_inplace */
   1551      1.1  christos 	 0,			/* src_mask */
   1552      1.1  christos 	 0xffff,		/* dst_mask */
   1553      1.1  christos 	 FALSE),		/* pcrel_offset */
   1554  1.1.1.2  christos 
   1555      1.1  christos   /* Like R_PPC_VLE_SDA21 but ignore overflow.  */
   1556      1.1  christos   HOWTO (R_PPC_VLE_SDA21_LO,	/* type */
   1557      1.1  christos 	 0,			/* rightshift */
   1558  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1559      1.1  christos 	 16,			/* bitsize */
   1560      1.1  christos 	 FALSE,			/* pc_relative */
   1561  1.1.1.2  christos 	 0,			/* bitpos */
   1562  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1563      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1564      1.1  christos 	 "R_PPC_VLE_SDA21_LO",	/* name */
   1565      1.1  christos 	 FALSE,			/* partial_inplace */
   1566  1.1.1.2  christos 	 0,			/* src_mask */
   1567      1.1  christos 	 0xffff,		/* dst_mask */
   1568      1.1  christos 	 FALSE),		/* pcrel_offset */
   1569      1.1  christos 
   1570      1.1  christos   /* The 16 LSBS relative to _SDA_BASE_ in split16a format.  */
   1571      1.1  christos   HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
   1572      1.1  christos 	 0,			/* rightshift */
   1573  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1574      1.1  christos 	 16,			/* bitsize */
   1575      1.1  christos 	 FALSE,			/* pc_relative */
   1576  1.1.1.4  christos 	 0,			/* bitpos */
   1577  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1578  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1579      1.1  christos 	 "R_PPC_VLE_SDAREL_LO16A", /* name */
   1580      1.1  christos 	 FALSE,			/* partial_inplace */
   1581  1.1.1.5  christos 	 0,			/* src_mask */
   1582      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1583      1.1  christos 	 FALSE),		/* pcrel_offset */
   1584      1.1  christos 
   1585      1.1  christos   /* The 16 LSBS relative to _SDA_BASE_ in split16d format.  */
   1586      1.1  christos   HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
   1587      1.1  christos 	 0,			/* rightshift */
   1588  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1589      1.1  christos 	 16,			/* bitsize */
   1590      1.1  christos 	 FALSE,			/* pc_relative */
   1591  1.1.1.4  christos 	 0,			/* bitpos */
   1592  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1593  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1594      1.1  christos 	 "R_PPC_VLE_SDAREL_LO16D", /* name */
   1595      1.1  christos 	 FALSE,			/* partial_inplace */
   1596  1.1.1.5  christos 	 0,			/* src_mask */
   1597      1.1  christos 	 0x3e007ff,		/* dst_mask */
   1598      1.1  christos 	 FALSE),		/* pcrel_offset */
   1599      1.1  christos 
   1600  1.1.1.4  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16a format.  */
   1601  1.1.1.2  christos   HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
   1602      1.1  christos 	 16,			/* rightshift */
   1603  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1604      1.1  christos 	 16,			/* bitsize */
   1605      1.1  christos 	 FALSE,			/* pc_relative */
   1606  1.1.1.4  christos 	 0,			/* bitpos */
   1607  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1608  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1609      1.1  christos 	 "R_PPC_VLE_SDAREL_HI16A", /* name */
   1610      1.1  christos 	 FALSE,			/* partial_inplace */
   1611  1.1.1.5  christos 	 0,			/* src_mask */
   1612      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1613      1.1  christos 	 FALSE),		/* pcrel_offset */
   1614      1.1  christos 
   1615  1.1.1.4  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16d format.  */
   1616  1.1.1.2  christos   HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
   1617      1.1  christos 	 16,			/* rightshift */
   1618  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1619      1.1  christos 	 16,			/* bitsize */
   1620      1.1  christos 	 FALSE,			/* pc_relative */
   1621  1.1.1.4  christos 	 0,			/* bitpos */
   1622  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1623  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1624      1.1  christos 	 "R_PPC_VLE_SDAREL_HI16D", /* name */
   1625      1.1  christos 	 FALSE,			/* partial_inplace */
   1626  1.1.1.5  christos 	 0,			/* src_mask */
   1627      1.1  christos 	 0x3e007ff,		/* dst_mask */
   1628      1.1  christos 	 FALSE),		/* pcrel_offset */
   1629      1.1  christos 
   1630  1.1.1.4  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16a format.  */
   1631  1.1.1.2  christos   HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
   1632      1.1  christos 	 16,			/* rightshift */
   1633  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1634      1.1  christos 	 16,			/* bitsize */
   1635      1.1  christos 	 FALSE,			/* pc_relative */
   1636  1.1.1.4  christos 	 0,			/* bitpos */
   1637  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1638  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1639      1.1  christos 	 "R_PPC_VLE_SDAREL_HA16A", /* name */
   1640      1.1  christos 	 FALSE,			/* partial_inplace */
   1641  1.1.1.5  christos 	 0,			/* src_mask */
   1642      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1643      1.1  christos 	 FALSE),		/* pcrel_offset */
   1644      1.1  christos 
   1645  1.1.1.4  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16d format.  */
   1646  1.1.1.2  christos   HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
   1647      1.1  christos 	 16,			/* rightshift */
   1648  1.1.1.2  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1649      1.1  christos 	 16,			/* bitsize */
   1650      1.1  christos 	 FALSE,			/* pc_relative */
   1651  1.1.1.4  christos 	 0,			/* bitpos */
   1652  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1653  1.1.1.4  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1654      1.1  christos 	 "R_PPC_VLE_SDAREL_HA16D", /* name */
   1655      1.1  christos 	 FALSE,			/* partial_inplace */
   1656  1.1.1.5  christos 	 0,			/* src_mask */
   1657      1.1  christos 	 0x3e007ff,		/* dst_mask */
   1658      1.1  christos 	 FALSE),		/* pcrel_offset */
   1659      1.1  christos 
   1660      1.1  christos   HOWTO (R_PPC_IRELATIVE,	/* type */
   1661      1.1  christos 	 0,			/* rightshift */
   1662      1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1663      1.1  christos 	 32,			/* bitsize */
   1664      1.1  christos 	 FALSE,			/* pc_relative */
   1665  1.1.1.2  christos 	 0,			/* bitpos */
   1666  1.1.1.4  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1667      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1668      1.1  christos 	 "R_PPC_IRELATIVE",	/* name */
   1669      1.1  christos 	 FALSE,			/* partial_inplace */
   1670      1.1  christos 	 0,			/* src_mask */
   1671      1.1  christos 	 0xffffffff,		/* dst_mask */
   1672      1.1  christos 	 FALSE),		/* pcrel_offset */
   1673      1.1  christos 
   1674      1.1  christos   /* A 16 bit relative relocation.  */
   1675      1.1  christos   HOWTO (R_PPC_REL16,		/* type */
   1676      1.1  christos 	 0,			/* rightshift */
   1677      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1678      1.1  christos 	 16,			/* bitsize */
   1679      1.1  christos 	 TRUE,			/* pc_relative */
   1680  1.1.1.2  christos 	 0,			/* bitpos */
   1681      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1682      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1683      1.1  christos 	 "R_PPC_REL16",		/* name */
   1684      1.1  christos 	 FALSE,			/* partial_inplace */
   1685      1.1  christos 	 0,			/* src_mask */
   1686      1.1  christos 	 0xffff,		/* dst_mask */
   1687      1.1  christos 	 TRUE),			/* pcrel_offset */
   1688      1.1  christos 
   1689      1.1  christos   /* A 16 bit relative relocation without overflow.  */
   1690      1.1  christos   HOWTO (R_PPC_REL16_LO,	/* type */
   1691      1.1  christos 	 0,			/* rightshift */
   1692      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1693      1.1  christos 	 16,			/* bitsize */
   1694      1.1  christos 	 TRUE,			/* pc_relative */
   1695      1.1  christos 	 0,			/* bitpos */
   1696      1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1697      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1698      1.1  christos 	 "R_PPC_REL16_LO",	/* name */
   1699      1.1  christos 	 FALSE,			/* partial_inplace */
   1700      1.1  christos 	 0,			/* src_mask */
   1701      1.1  christos 	 0xffff,		/* dst_mask */
   1702      1.1  christos 	 TRUE),			/* pcrel_offset */
   1703      1.1  christos 
   1704      1.1  christos   /* The high order 16 bits of a relative address.  */
   1705      1.1  christos   HOWTO (R_PPC_REL16_HI,	/* type */
   1706      1.1  christos 	 16,			/* rightshift */
   1707      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1708      1.1  christos 	 16,			/* bitsize */
   1709      1.1  christos 	 TRUE,			/* pc_relative */
   1710      1.1  christos 	 0,			/* bitpos */
   1711      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1712      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1713      1.1  christos 	 "R_PPC_REL16_HI",	/* name */
   1714      1.1  christos 	 FALSE,			/* partial_inplace */
   1715      1.1  christos 	 0,			/* src_mask */
   1716      1.1  christos 	 0xffff,		/* dst_mask */
   1717      1.1  christos 	 TRUE),			/* pcrel_offset */
   1718      1.1  christos 
   1719      1.1  christos   /* The high order 16 bits of a relative address, plus 1 if the contents of
   1720      1.1  christos      the low 16 bits, treated as a signed number, is negative.  */
   1721      1.1  christos   HOWTO (R_PPC_REL16_HA,	/* type */
   1722      1.1  christos 	 16,			/* rightshift */
   1723      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1724      1.1  christos 	 16,			/* bitsize */
   1725      1.1  christos 	 TRUE,			/* pc_relative */
   1726      1.1  christos 	 0,			/* bitpos */
   1727      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1728      1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1729      1.1  christos 	 "R_PPC_REL16_HA",	/* name */
   1730      1.1  christos 	 FALSE,			/* partial_inplace */
   1731      1.1  christos 	 0,			/* src_mask */
   1732      1.1  christos 	 0xffff,		/* dst_mask */
   1733      1.1  christos 	 TRUE),			/* pcrel_offset */
   1734  1.1.1.4  christos 
   1735  1.1.1.4  christos   /* Like R_PPC_REL16_HA but for split field in addpcis.  */
   1736  1.1.1.4  christos   HOWTO (R_PPC_REL16DX_HA,	/* type */
   1737  1.1.1.4  christos 	 16,			/* rightshift */
   1738  1.1.1.4  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1739  1.1.1.4  christos 	 16,			/* bitsize */
   1740  1.1.1.4  christos 	 TRUE,			/* pc_relative */
   1741  1.1.1.4  christos 	 0,			/* bitpos */
   1742  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1743  1.1.1.4  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1744  1.1.1.4  christos 	 "R_PPC_REL16DX_HA",	/* name */
   1745  1.1.1.4  christos 	 FALSE,			/* partial_inplace */
   1746  1.1.1.4  christos 	 0,			/* src_mask */
   1747  1.1.1.4  christos 	 0x1fffc1,		/* dst_mask */
   1748  1.1.1.4  christos 	 TRUE),			/* pcrel_offset */
   1749  1.1.1.5  christos 
   1750  1.1.1.5  christos   /* A split-field reloc for addpcis, non-relative (gas internal use only).  */
   1751  1.1.1.5  christos   HOWTO (R_PPC_16DX_HA,		/* type */
   1752  1.1.1.5  christos 	 16,			/* rightshift */
   1753  1.1.1.5  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1754  1.1.1.5  christos 	 16,			/* bitsize */
   1755  1.1.1.5  christos 	 FALSE,			/* pc_relative */
   1756  1.1.1.5  christos 	 0,			/* bitpos */
   1757  1.1.1.5  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1758  1.1.1.5  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1759  1.1.1.5  christos 	 "R_PPC_16DX_HA",	/* name */
   1760  1.1.1.5  christos 	 FALSE,			/* partial_inplace */
   1761  1.1.1.5  christos 	 0,			/* src_mask */
   1762  1.1.1.5  christos 	 0x1fffc1,		/* dst_mask */
   1763  1.1.1.5  christos 	 FALSE),		/* pcrel_offset */
   1764      1.1  christos 
   1765      1.1  christos   /* GNU extension to record C++ vtable hierarchy.  */
   1766      1.1  christos   HOWTO (R_PPC_GNU_VTINHERIT,	/* type */
   1767      1.1  christos 	 0,			/* rightshift */
   1768      1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1769      1.1  christos 	 0,			/* bitsize */
   1770      1.1  christos 	 FALSE,			/* pc_relative */
   1771      1.1  christos 	 0,			/* bitpos */
   1772      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1773      1.1  christos 	 NULL,			/* special_function */
   1774      1.1  christos 	 "R_PPC_GNU_VTINHERIT",	/* name */
   1775      1.1  christos 	 FALSE,			/* partial_inplace */
   1776      1.1  christos 	 0,			/* src_mask */
   1777      1.1  christos 	 0,			/* dst_mask */
   1778      1.1  christos 	 FALSE),		/* pcrel_offset */
   1779      1.1  christos 
   1780      1.1  christos   /* GNU extension to record C++ vtable member usage.  */
   1781      1.1  christos   HOWTO (R_PPC_GNU_VTENTRY,	/* type */
   1782      1.1  christos 	 0,			/* rightshift */
   1783      1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1784      1.1  christos 	 0,			/* bitsize */
   1785      1.1  christos 	 FALSE,			/* pc_relative */
   1786      1.1  christos 	 0,			/* bitpos */
   1787      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1788      1.1  christos 	 NULL,			/* special_function */
   1789      1.1  christos 	 "R_PPC_GNU_VTENTRY",	/* name */
   1790      1.1  christos 	 FALSE,			/* partial_inplace */
   1791      1.1  christos 	 0,			/* src_mask */
   1792      1.1  christos 	 0,			/* dst_mask */
   1793      1.1  christos 	 FALSE),		/* pcrel_offset */
   1794      1.1  christos 
   1795      1.1  christos   /* Phony reloc to handle AIX style TOC entries.  */
   1796      1.1  christos   HOWTO (R_PPC_TOC16,		/* type */
   1797      1.1  christos 	 0,			/* rightshift */
   1798      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1799      1.1  christos 	 16,			/* bitsize */
   1800      1.1  christos 	 FALSE,			/* pc_relative */
   1801      1.1  christos 	 0,			/* bitpos */
   1802  1.1.1.4  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1803      1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1804      1.1  christos 	 "R_PPC_TOC16",		/* name */
   1805      1.1  christos 	 FALSE,			/* partial_inplace */
   1806      1.1  christos 	 0,			/* src_mask */
   1807      1.1  christos 	 0xffff,		/* dst_mask */
   1808      1.1  christos 	 FALSE),		/* pcrel_offset */
   1809      1.1  christos };
   1810      1.1  christos 
   1811      1.1  christos /* External 32-bit PPC structure for PRPSINFO.  This structure is
   1812      1.1  christos    ABI-defined, thus we choose to use char arrays here in order to
   1813      1.1  christos    avoid dealing with different types in different architectures.
   1814      1.1  christos 
   1815      1.1  christos    The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
   1816      1.1  christos    most non-PPC architectures use `short int'.
   1817      1.1  christos 
   1818      1.1  christos    This structure will ultimately be written in the corefile's note
   1819      1.1  christos    section, as the PRPSINFO.  */
   1820      1.1  christos 
   1821      1.1  christos struct elf_external_ppc_linux_prpsinfo32
   1822      1.1  christos   {
   1823      1.1  christos     char pr_state;			/* Numeric process state.  */
   1824      1.1  christos     char pr_sname;			/* Char for pr_state.  */
   1825      1.1  christos     char pr_zomb;			/* Zombie.  */
   1826      1.1  christos     char pr_nice;			/* Nice val.  */
   1827      1.1  christos     char pr_flag[4];			/* Flags.  */
   1828      1.1  christos     char pr_uid[4];
   1829      1.1  christos     char pr_gid[4];
   1830      1.1  christos     char pr_pid[4];
   1831      1.1  christos     char pr_ppid[4];
   1832      1.1  christos     char pr_pgrp[4];
   1833      1.1  christos     char pr_sid[4];
   1834      1.1  christos     char pr_fname[16];			/* Filename of executable.  */
   1835      1.1  christos     char pr_psargs[80];			/* Initial part of arg list.  */
   1836      1.1  christos   };
   1837  1.1.1.4  christos 
   1838  1.1.1.4  christos /* Helper function to copy an elf_internal_linux_prpsinfo in host
   1839      1.1  christos    endian to an elf_external_ppc_linux_prpsinfo32 in target endian.  */
   1840  1.1.1.4  christos 
   1841  1.1.1.4  christos static inline void
   1842  1.1.1.4  christos swap_ppc_linux_prpsinfo32_out (bfd *obfd,
   1843  1.1.1.4  christos 			       const struct elf_internal_linux_prpsinfo *from,
   1844  1.1.1.4  christos 			       struct elf_external_ppc_linux_prpsinfo32 *to)
   1845  1.1.1.4  christos {
   1846  1.1.1.4  christos   bfd_put_8 (obfd, from->pr_state, &to->pr_state);
   1847  1.1.1.4  christos   bfd_put_8 (obfd, from->pr_sname, &to->pr_sname);
   1848  1.1.1.4  christos   bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb);
   1849  1.1.1.4  christos   bfd_put_8 (obfd, from->pr_nice, &to->pr_nice);
   1850  1.1.1.4  christos   bfd_put_32 (obfd, from->pr_flag, to->pr_flag);
   1851  1.1.1.4  christos   bfd_put_32 (obfd, from->pr_uid, to->pr_uid);
   1852  1.1.1.4  christos   bfd_put_32 (obfd, from->pr_gid, to->pr_gid);
   1853  1.1.1.4  christos   bfd_put_32 (obfd, from->pr_pid, to->pr_pid);
   1854  1.1.1.4  christos   bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid);
   1855  1.1.1.4  christos   bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp);
   1856  1.1.1.4  christos   bfd_put_32 (obfd, from->pr_sid, to->pr_sid);
   1857  1.1.1.4  christos   strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname));
   1858  1.1.1.4  christos   strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs));
   1859      1.1  christos }
   1860      1.1  christos 
   1861      1.1  christos /* Initialize the ppc_elf_howto_table, so that linear accesses can be done.  */
   1863      1.1  christos 
   1864      1.1  christos static void
   1865      1.1  christos ppc_elf_howto_init (void)
   1866      1.1  christos {
   1867      1.1  christos   unsigned int i, type;
   1868      1.1  christos 
   1869      1.1  christos   for (i = 0;
   1870      1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   1871      1.1  christos        i++)
   1872      1.1  christos     {
   1873      1.1  christos       type = ppc_elf_howto_raw[i].type;
   1874      1.1  christos       if (type >= (sizeof (ppc_elf_howto_table)
   1875      1.1  christos 		   / sizeof (ppc_elf_howto_table[0])))
   1876      1.1  christos 	abort ();
   1877      1.1  christos       ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
   1878      1.1  christos     }
   1879      1.1  christos }
   1880      1.1  christos 
   1881      1.1  christos static reloc_howto_type *
   1882      1.1  christos ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   1883      1.1  christos 			   bfd_reloc_code_real_type code)
   1884      1.1  christos {
   1885      1.1  christos   enum elf_ppc_reloc_type r;
   1886      1.1  christos 
   1887      1.1  christos   /* Initialize howto table if not already done.  */
   1888      1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   1889      1.1  christos     ppc_elf_howto_init ();
   1890      1.1  christos 
   1891      1.1  christos   switch (code)
   1892      1.1  christos     {
   1893      1.1  christos     default:
   1894      1.1  christos       return NULL;
   1895      1.1  christos 
   1896      1.1  christos     case BFD_RELOC_NONE:		r = R_PPC_NONE;			break;
   1897      1.1  christos     case BFD_RELOC_32:			r = R_PPC_ADDR32;		break;
   1898      1.1  christos     case BFD_RELOC_PPC_BA26:		r = R_PPC_ADDR24;		break;
   1899      1.1  christos     case BFD_RELOC_PPC64_ADDR16_DS:
   1900      1.1  christos     case BFD_RELOC_16:			r = R_PPC_ADDR16;		break;
   1901      1.1  christos     case BFD_RELOC_PPC64_ADDR16_LO_DS:
   1902      1.1  christos     case BFD_RELOC_LO16:		r = R_PPC_ADDR16_LO;		break;
   1903      1.1  christos     case BFD_RELOC_HI16:		r = R_PPC_ADDR16_HI;		break;
   1904      1.1  christos     case BFD_RELOC_HI16_S:		r = R_PPC_ADDR16_HA;		break;
   1905      1.1  christos     case BFD_RELOC_PPC_BA16:		r = R_PPC_ADDR14;		break;
   1906      1.1  christos     case BFD_RELOC_PPC_BA16_BRTAKEN:	r = R_PPC_ADDR14_BRTAKEN;	break;
   1907      1.1  christos     case BFD_RELOC_PPC_BA16_BRNTAKEN:	r = R_PPC_ADDR14_BRNTAKEN;	break;
   1908      1.1  christos     case BFD_RELOC_PPC_B26:		r = R_PPC_REL24;		break;
   1909      1.1  christos     case BFD_RELOC_PPC_B16:		r = R_PPC_REL14;		break;
   1910      1.1  christos     case BFD_RELOC_PPC_B16_BRTAKEN:	r = R_PPC_REL14_BRTAKEN;	break;
   1911      1.1  christos     case BFD_RELOC_PPC_B16_BRNTAKEN:	r = R_PPC_REL14_BRNTAKEN;	break;
   1912      1.1  christos     case BFD_RELOC_PPC64_GOT16_DS:
   1913      1.1  christos     case BFD_RELOC_16_GOTOFF:		r = R_PPC_GOT16;		break;
   1914      1.1  christos     case BFD_RELOC_PPC64_GOT16_LO_DS:
   1915      1.1  christos     case BFD_RELOC_LO16_GOTOFF:		r = R_PPC_GOT16_LO;		break;
   1916      1.1  christos     case BFD_RELOC_HI16_GOTOFF:		r = R_PPC_GOT16_HI;		break;
   1917      1.1  christos     case BFD_RELOC_HI16_S_GOTOFF:	r = R_PPC_GOT16_HA;		break;
   1918      1.1  christos     case BFD_RELOC_24_PLT_PCREL:	r = R_PPC_PLTREL24;		break;
   1919      1.1  christos     case BFD_RELOC_PPC_COPY:		r = R_PPC_COPY;			break;
   1920      1.1  christos     case BFD_RELOC_PPC_GLOB_DAT:	r = R_PPC_GLOB_DAT;		break;
   1921      1.1  christos     case BFD_RELOC_PPC_LOCAL24PC:	r = R_PPC_LOCAL24PC;		break;
   1922      1.1  christos     case BFD_RELOC_32_PCREL:		r = R_PPC_REL32;		break;
   1923      1.1  christos     case BFD_RELOC_32_PLTOFF:		r = R_PPC_PLT32;		break;
   1924      1.1  christos     case BFD_RELOC_32_PLT_PCREL:	r = R_PPC_PLTREL32;		break;
   1925      1.1  christos     case BFD_RELOC_PPC64_PLT16_LO_DS:
   1926      1.1  christos     case BFD_RELOC_LO16_PLTOFF:		r = R_PPC_PLT16_LO;		break;
   1927      1.1  christos     case BFD_RELOC_HI16_PLTOFF:		r = R_PPC_PLT16_HI;		break;
   1928      1.1  christos     case BFD_RELOC_HI16_S_PLTOFF:	r = R_PPC_PLT16_HA;		break;
   1929      1.1  christos     case BFD_RELOC_GPREL16:		r = R_PPC_SDAREL16;		break;
   1930      1.1  christos     case BFD_RELOC_PPC64_SECTOFF_DS:
   1931      1.1  christos     case BFD_RELOC_16_BASEREL:		r = R_PPC_SECTOFF;		break;
   1932      1.1  christos     case BFD_RELOC_PPC64_SECTOFF_LO_DS:
   1933      1.1  christos     case BFD_RELOC_LO16_BASEREL:	r = R_PPC_SECTOFF_LO;		break;
   1934      1.1  christos     case BFD_RELOC_HI16_BASEREL:	r = R_PPC_SECTOFF_HI;		break;
   1935      1.1  christos     case BFD_RELOC_HI16_S_BASEREL:	r = R_PPC_SECTOFF_HA;		break;
   1936      1.1  christos     case BFD_RELOC_CTOR:		r = R_PPC_ADDR32;		break;
   1937      1.1  christos     case BFD_RELOC_PPC64_TOC16_DS:
   1938      1.1  christos     case BFD_RELOC_PPC_TOC16:		r = R_PPC_TOC16;		break;
   1939      1.1  christos     case BFD_RELOC_PPC_TLS:		r = R_PPC_TLS;			break;
   1940      1.1  christos     case BFD_RELOC_PPC_TLSGD:		r = R_PPC_TLSGD;		break;
   1941      1.1  christos     case BFD_RELOC_PPC_TLSLD:		r = R_PPC_TLSLD;		break;
   1942      1.1  christos     case BFD_RELOC_PPC_DTPMOD:		r = R_PPC_DTPMOD32;		break;
   1943      1.1  christos     case BFD_RELOC_PPC64_TPREL16_DS:
   1944      1.1  christos     case BFD_RELOC_PPC_TPREL16:		r = R_PPC_TPREL16;		break;
   1945      1.1  christos     case BFD_RELOC_PPC64_TPREL16_LO_DS:
   1946      1.1  christos     case BFD_RELOC_PPC_TPREL16_LO:	r = R_PPC_TPREL16_LO;		break;
   1947      1.1  christos     case BFD_RELOC_PPC_TPREL16_HI:	r = R_PPC_TPREL16_HI;		break;
   1948      1.1  christos     case BFD_RELOC_PPC_TPREL16_HA:	r = R_PPC_TPREL16_HA;		break;
   1949      1.1  christos     case BFD_RELOC_PPC_TPREL:		r = R_PPC_TPREL32;		break;
   1950      1.1  christos     case BFD_RELOC_PPC64_DTPREL16_DS:
   1951      1.1  christos     case BFD_RELOC_PPC_DTPREL16:	r = R_PPC_DTPREL16;		break;
   1952      1.1  christos     case BFD_RELOC_PPC64_DTPREL16_LO_DS:
   1953      1.1  christos     case BFD_RELOC_PPC_DTPREL16_LO:	r = R_PPC_DTPREL16_LO;		break;
   1954      1.1  christos     case BFD_RELOC_PPC_DTPREL16_HI:	r = R_PPC_DTPREL16_HI;		break;
   1955      1.1  christos     case BFD_RELOC_PPC_DTPREL16_HA:	r = R_PPC_DTPREL16_HA;		break;
   1956      1.1  christos     case BFD_RELOC_PPC_DTPREL:		r = R_PPC_DTPREL32;		break;
   1957      1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16:	r = R_PPC_GOT_TLSGD16;		break;
   1958      1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_LO:	r = R_PPC_GOT_TLSGD16_LO;	break;
   1959      1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HI:	r = R_PPC_GOT_TLSGD16_HI;	break;
   1960      1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HA:	r = R_PPC_GOT_TLSGD16_HA;	break;
   1961      1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16:	r = R_PPC_GOT_TLSLD16;		break;
   1962      1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_LO:	r = R_PPC_GOT_TLSLD16_LO;	break;
   1963      1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HI:	r = R_PPC_GOT_TLSLD16_HI;	break;
   1964      1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HA:	r = R_PPC_GOT_TLSLD16_HA;	break;
   1965      1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16:	r = R_PPC_GOT_TPREL16;		break;
   1966      1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_LO:	r = R_PPC_GOT_TPREL16_LO;	break;
   1967      1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HI:	r = R_PPC_GOT_TPREL16_HI;	break;
   1968      1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HA:	r = R_PPC_GOT_TPREL16_HA;	break;
   1969      1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16:	r = R_PPC_GOT_DTPREL16;		break;
   1970      1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_LO:	r = R_PPC_GOT_DTPREL16_LO;	break;
   1971      1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HI:	r = R_PPC_GOT_DTPREL16_HI;	break;
   1972      1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HA:	r = R_PPC_GOT_DTPREL16_HA;	break;
   1973      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR32:	r = R_PPC_EMB_NADDR32;		break;
   1974      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16:	r = R_PPC_EMB_NADDR16;		break;
   1975      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_LO:	r = R_PPC_EMB_NADDR16_LO;	break;
   1976      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HI:	r = R_PPC_EMB_NADDR16_HI;	break;
   1977      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HA:	r = R_PPC_EMB_NADDR16_HA;	break;
   1978      1.1  christos     case BFD_RELOC_PPC_EMB_SDAI16:	r = R_PPC_EMB_SDAI16;		break;
   1979      1.1  christos     case BFD_RELOC_PPC_EMB_SDA2I16:	r = R_PPC_EMB_SDA2I16;		break;
   1980      1.1  christos     case BFD_RELOC_PPC_EMB_SDA2REL:	r = R_PPC_EMB_SDA2REL;		break;
   1981      1.1  christos     case BFD_RELOC_PPC_EMB_SDA21:	r = R_PPC_EMB_SDA21;		break;
   1982      1.1  christos     case BFD_RELOC_PPC_EMB_MRKREF:	r = R_PPC_EMB_MRKREF;		break;
   1983      1.1  christos     case BFD_RELOC_PPC_EMB_RELSEC16:	r = R_PPC_EMB_RELSEC16;		break;
   1984      1.1  christos     case BFD_RELOC_PPC_EMB_RELST_LO:	r = R_PPC_EMB_RELST_LO;		break;
   1985      1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HI:	r = R_PPC_EMB_RELST_HI;		break;
   1986      1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HA:	r = R_PPC_EMB_RELST_HA;		break;
   1987      1.1  christos     case BFD_RELOC_PPC_EMB_BIT_FLD:	r = R_PPC_EMB_BIT_FLD;		break;
   1988      1.1  christos     case BFD_RELOC_PPC_EMB_RELSDA:	r = R_PPC_EMB_RELSDA;		break;
   1989      1.1  christos     case BFD_RELOC_PPC_VLE_REL8:	r = R_PPC_VLE_REL8;		break;
   1990      1.1  christos     case BFD_RELOC_PPC_VLE_REL15:	r = R_PPC_VLE_REL15;		break;
   1991      1.1  christos     case BFD_RELOC_PPC_VLE_REL24:	r = R_PPC_VLE_REL24;		break;
   1992      1.1  christos     case BFD_RELOC_PPC_VLE_LO16A:	r = R_PPC_VLE_LO16A;		break;
   1993      1.1  christos     case BFD_RELOC_PPC_VLE_LO16D:	r = R_PPC_VLE_LO16D;		break;
   1994      1.1  christos     case BFD_RELOC_PPC_VLE_HI16A:	r = R_PPC_VLE_HI16A;		break;
   1995      1.1  christos     case BFD_RELOC_PPC_VLE_HI16D:	r = R_PPC_VLE_HI16D;		break;
   1996      1.1  christos     case BFD_RELOC_PPC_VLE_HA16A:	r = R_PPC_VLE_HA16A;		break;
   1997      1.1  christos     case BFD_RELOC_PPC_VLE_HA16D:	r = R_PPC_VLE_HA16D;		break;
   1998      1.1  christos     case BFD_RELOC_PPC_VLE_SDA21:	r = R_PPC_VLE_SDA21;		break;
   1999      1.1  christos     case BFD_RELOC_PPC_VLE_SDA21_LO:	r = R_PPC_VLE_SDA21_LO;		break;
   2000      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
   2001      1.1  christos       r = R_PPC_VLE_SDAREL_LO16A;
   2002      1.1  christos       break;
   2003      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
   2004      1.1  christos       r = R_PPC_VLE_SDAREL_LO16D;
   2005      1.1  christos       break;
   2006      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
   2007      1.1  christos       r = R_PPC_VLE_SDAREL_HI16A;
   2008      1.1  christos       break;
   2009      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
   2010      1.1  christos       r = R_PPC_VLE_SDAREL_HI16D;
   2011      1.1  christos       break;
   2012      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
   2013      1.1  christos       r = R_PPC_VLE_SDAREL_HA16A;
   2014      1.1  christos       break;
   2015      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
   2016      1.1  christos       r = R_PPC_VLE_SDAREL_HA16D;
   2017      1.1  christos       break;
   2018      1.1  christos     case BFD_RELOC_16_PCREL:		r = R_PPC_REL16;		break;
   2019      1.1  christos     case BFD_RELOC_LO16_PCREL:		r = R_PPC_REL16_LO;		break;
   2020  1.1.1.5  christos     case BFD_RELOC_HI16_PCREL:		r = R_PPC_REL16_HI;		break;
   2021  1.1.1.4  christos     case BFD_RELOC_HI16_S_PCREL:	r = R_PPC_REL16_HA;		break;
   2022      1.1  christos     case BFD_RELOC_PPC_16DX_HA:		r = R_PPC_16DX_HA;		break;
   2023      1.1  christos     case BFD_RELOC_PPC_REL16DX_HA:	r = R_PPC_REL16DX_HA;		break;
   2024      1.1  christos     case BFD_RELOC_VTABLE_INHERIT:	r = R_PPC_GNU_VTINHERIT;	break;
   2025      1.1  christos     case BFD_RELOC_VTABLE_ENTRY:	r = R_PPC_GNU_VTENTRY;		break;
   2026      1.1  christos     }
   2027      1.1  christos 
   2028      1.1  christos   return ppc_elf_howto_table[r];
   2029      1.1  christos };
   2030      1.1  christos 
   2031      1.1  christos static reloc_howto_type *
   2032      1.1  christos ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   2033      1.1  christos 			   const char *r_name)
   2034      1.1  christos {
   2035      1.1  christos   unsigned int i;
   2036      1.1  christos 
   2037      1.1  christos   for (i = 0;
   2038      1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   2039      1.1  christos        i++)
   2040      1.1  christos     if (ppc_elf_howto_raw[i].name != NULL
   2041      1.1  christos 	&& strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
   2042      1.1  christos       return &ppc_elf_howto_raw[i];
   2043      1.1  christos 
   2044      1.1  christos   return NULL;
   2045      1.1  christos }
   2046      1.1  christos 
   2047      1.1  christos /* Set the howto pointer for a PowerPC ELF reloc.  */
   2048  1.1.1.5  christos 
   2049      1.1  christos static void
   2050      1.1  christos ppc_elf_info_to_howto (bfd *abfd,
   2051      1.1  christos 		       arelent *cache_ptr,
   2052  1.1.1.3  christos 		       Elf_Internal_Rela *dst)
   2053  1.1.1.3  christos {
   2054      1.1  christos   unsigned int r_type;
   2055      1.1  christos 
   2056      1.1  christos   /* Initialize howto table if not already done.  */
   2057      1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   2058  1.1.1.3  christos     ppc_elf_howto_init ();
   2059  1.1.1.3  christos 
   2060  1.1.1.3  christos   r_type = ELF32_R_TYPE (dst->r_info);
   2061  1.1.1.5  christos   if (r_type >= R_PPC_max)
   2062  1.1.1.5  christos     {
   2063  1.1.1.5  christos       /* xgettext:c-format */
   2064  1.1.1.3  christos       _bfd_error_handler (_("%B: unrecognised PPC reloc number: %d"),
   2065  1.1.1.3  christos 			  abfd, r_type);
   2066  1.1.1.3  christos       bfd_set_error (bfd_error_bad_value);
   2067  1.1.1.3  christos       r_type = R_PPC_NONE;
   2068      1.1  christos     }
   2069      1.1  christos   cache_ptr->howto = ppc_elf_howto_table[r_type];
   2070      1.1  christos 
   2071      1.1  christos   /* Just because the above assert didn't trigger doesn't mean that
   2072      1.1  christos      ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation.  */
   2073  1.1.1.5  christos   if (!cache_ptr->howto)
   2074  1.1.1.5  christos     {
   2075  1.1.1.5  christos       /* xgettext:c-format */
   2076      1.1  christos       _bfd_error_handler (_("%B: invalid relocation type %d"),
   2077      1.1  christos 			  abfd, r_type);
   2078      1.1  christos       bfd_set_error (bfd_error_bad_value);
   2079      1.1  christos 
   2080      1.1  christos       cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
   2081      1.1  christos     }
   2082      1.1  christos }
   2083      1.1  christos 
   2084      1.1  christos /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs.  */
   2085  1.1.1.5  christos 
   2086      1.1  christos static bfd_reloc_status_type
   2087      1.1  christos ppc_elf_addr16_ha_reloc (bfd *abfd,
   2088  1.1.1.5  christos 			 arelent *reloc_entry,
   2089      1.1  christos 			 asymbol *symbol,
   2090      1.1  christos 			 void *data,
   2091      1.1  christos 			 asection *input_section,
   2092      1.1  christos 			 bfd *output_bfd,
   2093  1.1.1.4  christos 			 char **error_message ATTRIBUTE_UNUSED)
   2094  1.1.1.4  christos {
   2095  1.1.1.4  christos   enum elf_ppc_reloc_type r_type;
   2096  1.1.1.4  christos   long insn;
   2097      1.1  christos   bfd_size_type octets;
   2098      1.1  christos   bfd_vma value;
   2099      1.1  christos 
   2100      1.1  christos   if (output_bfd != NULL)
   2101      1.1  christos     {
   2102      1.1  christos       reloc_entry->address += input_section->output_offset;
   2103      1.1  christos       return bfd_reloc_ok;
   2104  1.1.1.4  christos     }
   2105  1.1.1.4  christos 
   2106  1.1.1.4  christos   reloc_entry->addend += 0x8000;
   2107  1.1.1.4  christos   r_type = reloc_entry->howto->type;
   2108  1.1.1.4  christos   if (r_type != R_PPC_REL16DX_HA)
   2109  1.1.1.4  christos     return bfd_reloc_continue;
   2110  1.1.1.4  christos 
   2111  1.1.1.4  christos   value = 0;
   2112  1.1.1.4  christos   if (!bfd_is_com_section (symbol->section))
   2113  1.1.1.4  christos     value = symbol->value;
   2114  1.1.1.4  christos   value += (reloc_entry->addend
   2115  1.1.1.4  christos 	    + symbol->section->output_offset
   2116  1.1.1.4  christos 	    + symbol->section->output_section->vma);
   2117  1.1.1.4  christos   value -= (reloc_entry->address
   2118  1.1.1.4  christos 	    + input_section->output_offset
   2119  1.1.1.4  christos 	    + input_section->output_section->vma);
   2120  1.1.1.4  christos   value >>= 16;
   2121  1.1.1.4  christos 
   2122  1.1.1.4  christos   octets = reloc_entry->address * bfd_octets_per_byte (abfd);
   2123  1.1.1.4  christos   insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
   2124  1.1.1.4  christos   insn &= ~0x1fffc1;
   2125  1.1.1.4  christos   insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
   2126      1.1  christos   bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
   2127      1.1  christos   return bfd_reloc_ok;
   2128      1.1  christos }
   2129      1.1  christos 
   2130      1.1  christos static bfd_reloc_status_type
   2131      1.1  christos ppc_elf_unhandled_reloc (bfd *abfd,
   2132      1.1  christos 			 arelent *reloc_entry,
   2133      1.1  christos 			 asymbol *symbol,
   2134      1.1  christos 			 void *data,
   2135      1.1  christos 			 asection *input_section,
   2136      1.1  christos 			 bfd *output_bfd,
   2137      1.1  christos 			 char **error_message)
   2138      1.1  christos {
   2139      1.1  christos   /* If this is a relocatable link (output_bfd test tells us), just
   2140      1.1  christos      call the generic function.  Any adjustment will be done at final
   2141      1.1  christos      link time.  */
   2142      1.1  christos   if (output_bfd != NULL)
   2143      1.1  christos     return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
   2144      1.1  christos 				  input_section, output_bfd, error_message);
   2145      1.1  christos 
   2146      1.1  christos   if (error_message != NULL)
   2147      1.1  christos     {
   2148      1.1  christos       static char buf[60];
   2149      1.1  christos       sprintf (buf, _("generic linker can't handle %s"),
   2150      1.1  christos 	       reloc_entry->howto->name);
   2151      1.1  christos       *error_message = buf;
   2152      1.1  christos     }
   2153      1.1  christos   return bfd_reloc_dangerous;
   2154      1.1  christos }
   2155      1.1  christos 
   2156      1.1  christos /* Sections created by the linker.  */
   2158      1.1  christos 
   2159      1.1  christos typedef struct elf_linker_section
   2160      1.1  christos {
   2161      1.1  christos   /* Pointer to the bfd section.  */
   2162      1.1  christos   asection *section;
   2163      1.1  christos   /* Section name.  */
   2164      1.1  christos   const char *name;
   2165      1.1  christos   /* Associated bss section name.  */
   2166      1.1  christos   const char *bss_name;
   2167      1.1  christos   /* Associated symbol name.  */
   2168      1.1  christos   const char *sym_name;
   2169      1.1  christos   /* Associated symbol.  */
   2170      1.1  christos   struct elf_link_hash_entry *sym;
   2171      1.1  christos } elf_linker_section_t;
   2172      1.1  christos 
   2173      1.1  christos /* Linked list of allocated pointer entries.  This hangs off of the
   2174      1.1  christos    symbol lists, and provides allows us to return different pointers,
   2175      1.1  christos    based on different addend's.  */
   2176      1.1  christos 
   2177      1.1  christos typedef struct elf_linker_section_pointers
   2178      1.1  christos {
   2179      1.1  christos   /* next allocated pointer for this symbol */
   2180      1.1  christos   struct elf_linker_section_pointers *next;
   2181      1.1  christos   /* offset of pointer from beginning of section */
   2182      1.1  christos   bfd_vma offset;
   2183      1.1  christos   /* addend used */
   2184      1.1  christos   bfd_vma addend;
   2185      1.1  christos   /* which linker section this is */
   2186      1.1  christos   elf_linker_section_t *lsect;
   2187      1.1  christos } elf_linker_section_pointers_t;
   2188      1.1  christos 
   2189      1.1  christos struct ppc_elf_obj_tdata
   2190      1.1  christos {
   2191      1.1  christos   struct elf_obj_tdata elf;
   2192      1.1  christos 
   2193      1.1  christos   /* A mapping from local symbols to offsets into the various linker
   2194      1.1  christos      sections added.  This is index by the symbol index.  */
   2195      1.1  christos   elf_linker_section_pointers_t **linker_section_pointers;
   2196      1.1  christos 
   2197      1.1  christos   /* Flags used to auto-detect plt type.  */
   2198      1.1  christos   unsigned int makes_plt_call : 1;
   2199      1.1  christos   unsigned int has_rel16 : 1;
   2200      1.1  christos };
   2201      1.1  christos 
   2202      1.1  christos #define ppc_elf_tdata(bfd) \
   2203      1.1  christos   ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
   2204      1.1  christos 
   2205      1.1  christos #define elf_local_ptr_offsets(bfd) \
   2206      1.1  christos   (ppc_elf_tdata (bfd)->linker_section_pointers)
   2207      1.1  christos 
   2208      1.1  christos #define is_ppc_elf(bfd) \
   2209      1.1  christos   (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
   2210      1.1  christos    && elf_object_id (bfd) == PPC32_ELF_DATA)
   2211      1.1  christos 
   2212      1.1  christos /* Override the generic function because we store some extras.  */
   2213      1.1  christos 
   2214      1.1  christos static bfd_boolean
   2215      1.1  christos ppc_elf_mkobject (bfd *abfd)
   2216      1.1  christos {
   2217      1.1  christos   return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
   2218  1.1.1.4  christos 				  PPC32_ELF_DATA);
   2219  1.1.1.4  christos }
   2220  1.1.1.4  christos 
   2221  1.1.1.4  christos /* When defaulting arch/mach, decode apuinfo to find a better match.  */
   2222  1.1.1.4  christos 
   2223  1.1.1.4  christos bfd_boolean
   2224  1.1.1.4  christos _bfd_elf_ppc_set_arch (bfd *abfd)
   2225  1.1.1.4  christos {
   2226  1.1.1.4  christos   unsigned long mach = 0;
   2227  1.1.1.4  christos   asection *s;
   2228  1.1.1.4  christos   unsigned char *contents;
   2229  1.1.1.4  christos 
   2230  1.1.1.4  christos   if (abfd->arch_info->bits_per_word == 32
   2231  1.1.1.4  christos       && bfd_big_endian (abfd))
   2232  1.1.1.4  christos     {
   2233  1.1.1.4  christos 
   2234  1.1.1.4  christos       for (s = abfd->sections; s != NULL; s = s->next)
   2235  1.1.1.4  christos 	if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
   2236  1.1.1.4  christos 	  break;
   2237  1.1.1.4  christos       if (s != NULL)
   2238  1.1.1.4  christos 	mach = bfd_mach_ppc_vle;
   2239  1.1.1.4  christos     }
   2240  1.1.1.4  christos 
   2241  1.1.1.4  christos   if (mach == 0)
   2242  1.1.1.4  christos     {
   2243  1.1.1.4  christos       s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2244  1.1.1.4  christos       if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
   2245  1.1.1.4  christos 	{
   2246  1.1.1.4  christos 	  unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
   2247  1.1.1.4  christos 	  unsigned int i;
   2248  1.1.1.4  christos 
   2249  1.1.1.4  christos 	  for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
   2250  1.1.1.4  christos 	    {
   2251  1.1.1.4  christos 	      unsigned int val = bfd_get_32 (abfd, contents + i);
   2252  1.1.1.4  christos 	      switch (val >> 16)
   2253  1.1.1.4  christos 		{
   2254  1.1.1.4  christos 		case PPC_APUINFO_PMR:
   2255  1.1.1.4  christos 		case PPC_APUINFO_RFMCI:
   2256  1.1.1.4  christos 		  if (mach == 0)
   2257  1.1.1.4  christos 		    mach = bfd_mach_ppc_titan;
   2258  1.1.1.4  christos 		  break;
   2259  1.1.1.4  christos 
   2260  1.1.1.4  christos 		case PPC_APUINFO_ISEL:
   2261  1.1.1.4  christos 		case PPC_APUINFO_CACHELCK:
   2262  1.1.1.4  christos 		  if (mach == bfd_mach_ppc_titan)
   2263  1.1.1.4  christos 		    mach = bfd_mach_ppc_e500mc;
   2264  1.1.1.4  christos 		  break;
   2265  1.1.1.4  christos 
   2266  1.1.1.4  christos 		case PPC_APUINFO_SPE:
   2267  1.1.1.4  christos 		case PPC_APUINFO_EFS:
   2268  1.1.1.5  christos 		case PPC_APUINFO_BRLOCK:
   2269  1.1.1.4  christos 		  if (mach != bfd_mach_ppc_vle)
   2270  1.1.1.4  christos 		    mach = bfd_mach_ppc_e500;
   2271  1.1.1.4  christos 		  break;
   2272  1.1.1.4  christos 
   2273  1.1.1.4  christos 		case PPC_APUINFO_VLE:
   2274  1.1.1.4  christos 		  mach = bfd_mach_ppc_vle;
   2275  1.1.1.4  christos 		  break;
   2276  1.1.1.4  christos 
   2277  1.1.1.4  christos 		default:
   2278  1.1.1.4  christos 		  mach = -1ul;
   2279  1.1.1.4  christos 		}
   2280  1.1.1.4  christos 	    }
   2281  1.1.1.4  christos 	  free (contents);
   2282  1.1.1.4  christos 	}
   2283  1.1.1.4  christos     }
   2284  1.1.1.4  christos 
   2285  1.1.1.4  christos   if (mach != 0 && mach != -1ul)
   2286  1.1.1.4  christos     {
   2287  1.1.1.4  christos       const bfd_arch_info_type *arch;
   2288  1.1.1.4  christos 
   2289  1.1.1.4  christos       for (arch = abfd->arch_info->next; arch; arch = arch->next)
   2290  1.1.1.4  christos 	if (arch->mach == mach)
   2291  1.1.1.4  christos 	  {
   2292  1.1.1.4  christos 	    abfd->arch_info = arch;
   2293  1.1.1.4  christos 	    break;
   2294  1.1.1.4  christos 	  }
   2295  1.1.1.4  christos     }
   2296      1.1  christos   return TRUE;
   2297  1.1.1.4  christos }
   2298      1.1  christos 
   2299      1.1  christos /* Fix bad default arch selected for a 32 bit input bfd when the
   2300      1.1  christos    default is 64 bit.  Also select arch based on apuinfo.  */
   2301      1.1  christos 
   2302  1.1.1.4  christos static bfd_boolean
   2303  1.1.1.4  christos ppc_elf_object_p (bfd *abfd)
   2304  1.1.1.4  christos {
   2305  1.1.1.4  christos   if (!abfd->arch_info->the_default)
   2306      1.1  christos     return TRUE;
   2307      1.1  christos 
   2308      1.1  christos   if (abfd->arch_info->bits_per_word == 64)
   2309      1.1  christos     {
   2310      1.1  christos       Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
   2311      1.1  christos 
   2312      1.1  christos       if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
   2313      1.1  christos 	{
   2314      1.1  christos 	  /* Relies on arch after 64 bit default being 32 bit default.  */
   2315      1.1  christos 	  abfd->arch_info = abfd->arch_info->next;
   2316  1.1.1.4  christos 	  BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
   2317      1.1  christos 	}
   2318      1.1  christos     }
   2319      1.1  christos   return _bfd_elf_ppc_set_arch (abfd);
   2320      1.1  christos }
   2321      1.1  christos 
   2322      1.1  christos /* Function to set whether a module needs the -mrelocatable bit set.  */
   2323      1.1  christos 
   2324      1.1  christos static bfd_boolean
   2325      1.1  christos ppc_elf_set_private_flags (bfd *abfd, flagword flags)
   2326      1.1  christos {
   2327      1.1  christos   BFD_ASSERT (!elf_flags_init (abfd)
   2328      1.1  christos 	      || elf_elfheader (abfd)->e_flags == flags);
   2329      1.1  christos 
   2330      1.1  christos   elf_elfheader (abfd)->e_flags = flags;
   2331      1.1  christos   elf_flags_init (abfd) = TRUE;
   2332      1.1  christos   return TRUE;
   2333      1.1  christos }
   2334      1.1  christos 
   2335      1.1  christos /* Support for core dump NOTE sections.  */
   2336      1.1  christos 
   2337      1.1  christos static bfd_boolean
   2338      1.1  christos ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
   2339      1.1  christos {
   2340      1.1  christos   int offset;
   2341      1.1  christos   unsigned int size;
   2342      1.1  christos 
   2343      1.1  christos   switch (note->descsz)
   2344      1.1  christos     {
   2345      1.1  christos     default:
   2346      1.1  christos       return FALSE;
   2347      1.1  christos 
   2348      1.1  christos     case 268:		/* Linux/PPC.  */
   2349      1.1  christos       /* pr_cursig */
   2350      1.1  christos       elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
   2351      1.1  christos 
   2352      1.1  christos       /* pr_pid */
   2353      1.1  christos       elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
   2354      1.1  christos 
   2355      1.1  christos       /* pr_reg */
   2356      1.1  christos       offset = 72;
   2357      1.1  christos       size = 192;
   2358      1.1  christos 
   2359      1.1  christos       break;
   2360      1.1  christos     }
   2361      1.1  christos 
   2362      1.1  christos   /* Make a ".reg/999" section.  */
   2363      1.1  christos   return _bfd_elfcore_make_pseudosection (abfd, ".reg",
   2364      1.1  christos 					  size, note->descpos + offset);
   2365      1.1  christos }
   2366      1.1  christos 
   2367      1.1  christos static bfd_boolean
   2368      1.1  christos ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
   2369      1.1  christos {
   2370      1.1  christos   switch (note->descsz)
   2371      1.1  christos     {
   2372      1.1  christos     default:
   2373      1.1  christos       return FALSE;
   2374      1.1  christos 
   2375      1.1  christos     case 128:		/* Linux/PPC elf_prpsinfo.  */
   2376      1.1  christos       elf_tdata (abfd)->core->pid
   2377      1.1  christos 	= bfd_get_32 (abfd, note->descdata + 16);
   2378      1.1  christos       elf_tdata (abfd)->core->program
   2379      1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
   2380      1.1  christos       elf_tdata (abfd)->core->command
   2381      1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
   2382      1.1  christos     }
   2383      1.1  christos 
   2384      1.1  christos   /* Note that for some reason, a spurious space is tacked
   2385      1.1  christos      onto the end of the args in some (at least one anyway)
   2386      1.1  christos      implementations, so strip it off if it exists.  */
   2387      1.1  christos 
   2388      1.1  christos   {
   2389      1.1  christos     char *command = elf_tdata (abfd)->core->command;
   2390      1.1  christos     int n = strlen (command);
   2391      1.1  christos 
   2392      1.1  christos     if (0 < n && command[n - 1] == ' ')
   2393      1.1  christos       command[n - 1] = '\0';
   2394      1.1  christos   }
   2395      1.1  christos 
   2396      1.1  christos   return TRUE;
   2397  1.1.1.4  christos }
   2398  1.1.1.4  christos 
   2399  1.1.1.4  christos char *
   2400  1.1.1.4  christos elfcore_write_ppc_linux_prpsinfo32
   2401  1.1.1.4  christos   (bfd *abfd,
   2402      1.1  christos    char *buf,
   2403      1.1  christos    int *bufsiz,
   2404      1.1  christos    const struct elf_internal_linux_prpsinfo *prpsinfo)
   2405  1.1.1.4  christos {
   2406      1.1  christos   struct elf_external_ppc_linux_prpsinfo32 data;
   2407      1.1  christos 
   2408      1.1  christos   swap_ppc_linux_prpsinfo32_out (abfd, prpsinfo, &data);
   2409      1.1  christos   return elfcore_write_note (abfd, buf, bufsiz,
   2410      1.1  christos 			     "CORE", NT_PRPSINFO, &data, sizeof (data));
   2411      1.1  christos }
   2412      1.1  christos 
   2413      1.1  christos static char *
   2414      1.1  christos ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
   2415      1.1  christos {
   2416      1.1  christos   switch (note_type)
   2417      1.1  christos     {
   2418      1.1  christos     default:
   2419      1.1  christos       return NULL;
   2420      1.1  christos 
   2421      1.1  christos     case NT_PRPSINFO:
   2422      1.1  christos       {
   2423      1.1  christos 	char data[128];
   2424      1.1  christos 	va_list ap;
   2425      1.1  christos 
   2426      1.1  christos 	va_start (ap, note_type);
   2427      1.1  christos 	memset (data, 0, sizeof (data));
   2428      1.1  christos 	strncpy (data + 32, va_arg (ap, const char *), 16);
   2429      1.1  christos 	strncpy (data + 48, va_arg (ap, const char *), 80);
   2430      1.1  christos 	va_end (ap);
   2431      1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2432      1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2433      1.1  christos       }
   2434      1.1  christos 
   2435      1.1  christos     case NT_PRSTATUS:
   2436      1.1  christos       {
   2437      1.1  christos 	char data[268];
   2438      1.1  christos 	va_list ap;
   2439      1.1  christos 	long pid;
   2440      1.1  christos 	int cursig;
   2441      1.1  christos 	const void *greg;
   2442      1.1  christos 
   2443      1.1  christos 	va_start (ap, note_type);
   2444      1.1  christos 	memset (data, 0, 72);
   2445      1.1  christos 	pid = va_arg (ap, long);
   2446      1.1  christos 	bfd_put_32 (abfd, pid, data + 24);
   2447      1.1  christos 	cursig = va_arg (ap, int);
   2448      1.1  christos 	bfd_put_16 (abfd, cursig, data + 12);
   2449      1.1  christos 	greg = va_arg (ap, const void *);
   2450      1.1  christos 	memcpy (data + 72, greg, 192);
   2451      1.1  christos 	memset (data + 264, 0, 4);
   2452      1.1  christos 	va_end (ap);
   2453      1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2454      1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2455      1.1  christos       }
   2456      1.1  christos     }
   2457      1.1  christos }
   2458      1.1  christos 
   2459      1.1  christos static flagword
   2460      1.1  christos ppc_elf_lookup_section_flags (char *flag_name)
   2461      1.1  christos {
   2462      1.1  christos 
   2463      1.1  christos   if (!strcmp (flag_name, "SHF_PPC_VLE"))
   2464      1.1  christos     return SHF_PPC_VLE;
   2465      1.1  christos 
   2466      1.1  christos   return 0;
   2467      1.1  christos }
   2468      1.1  christos 
   2469      1.1  christos /* Return address for Ith PLT stub in section PLT, for relocation REL
   2470      1.1  christos    or (bfd_vma) -1 if it should not be included.  */
   2471      1.1  christos 
   2472      1.1  christos static bfd_vma
   2473      1.1  christos ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
   2474      1.1  christos 		     const asection *plt ATTRIBUTE_UNUSED,
   2475      1.1  christos 		     const arelent *rel)
   2476      1.1  christos {
   2477      1.1  christos   return rel->address;
   2478      1.1  christos }
   2479      1.1  christos 
   2480      1.1  christos /* Handle a PowerPC specific section when reading an object file.  This
   2481      1.1  christos    is called when bfd_section_from_shdr finds a section with an unknown
   2482      1.1  christos    type.  */
   2483      1.1  christos 
   2484      1.1  christos static bfd_boolean
   2485      1.1  christos ppc_elf_section_from_shdr (bfd *abfd,
   2486      1.1  christos 			   Elf_Internal_Shdr *hdr,
   2487      1.1  christos 			   const char *name,
   2488      1.1  christos 			   int shindex)
   2489      1.1  christos {
   2490      1.1  christos   asection *newsect;
   2491      1.1  christos   flagword flags;
   2492      1.1  christos 
   2493      1.1  christos   if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
   2494      1.1  christos     return FALSE;
   2495      1.1  christos 
   2496      1.1  christos   newsect = hdr->bfd_section;
   2497      1.1  christos   flags = bfd_get_section_flags (abfd, newsect);
   2498      1.1  christos   if (hdr->sh_flags & SHF_EXCLUDE)
   2499      1.1  christos     flags |= SEC_EXCLUDE;
   2500      1.1  christos 
   2501      1.1  christos   if (hdr->sh_type == SHT_ORDERED)
   2502      1.1  christos     flags |= SEC_SORT_ENTRIES;
   2503      1.1  christos 
   2504      1.1  christos   bfd_set_section_flags (abfd, newsect, flags);
   2505      1.1  christos   return TRUE;
   2506      1.1  christos }
   2507      1.1  christos 
   2508      1.1  christos /* Set up any other section flags and such that may be necessary.  */
   2509      1.1  christos 
   2510      1.1  christos static bfd_boolean
   2511      1.1  christos ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
   2512      1.1  christos 		       Elf_Internal_Shdr *shdr,
   2513      1.1  christos 		       asection *asect)
   2514      1.1  christos {
   2515      1.1  christos   if ((asect->flags & SEC_SORT_ENTRIES) != 0)
   2516      1.1  christos     shdr->sh_type = SHT_ORDERED;
   2517      1.1  christos 
   2518      1.1  christos   return TRUE;
   2519      1.1  christos }
   2520      1.1  christos 
   2521      1.1  christos /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
   2522      1.1  christos    need to bump up the number of section headers.  */
   2523      1.1  christos 
   2524      1.1  christos static int
   2525      1.1  christos ppc_elf_additional_program_headers (bfd *abfd,
   2526      1.1  christos 				    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2527      1.1  christos {
   2528      1.1  christos   asection *s;
   2529      1.1  christos   int ret = 0;
   2530      1.1  christos 
   2531      1.1  christos   s = bfd_get_section_by_name (abfd, ".sbss2");
   2532      1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2533      1.1  christos     ++ret;
   2534      1.1  christos 
   2535      1.1  christos   s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
   2536      1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2537      1.1  christos     ++ret;
   2538      1.1  christos 
   2539      1.1  christos   return ret;
   2540      1.1  christos }
   2541      1.1  christos 
   2542      1.1  christos /* Modify the segment map for VLE executables.  */
   2543      1.1  christos 
   2544      1.1  christos bfd_boolean
   2545  1.1.1.5  christos ppc_elf_modify_segment_map (bfd *abfd,
   2546      1.1  christos 			    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2547      1.1  christos {
   2548      1.1  christos   struct elf_segment_map *m;
   2549      1.1  christos 
   2550      1.1  christos   /* At this point in the link, output sections have already been sorted by
   2551      1.1  christos      LMA and assigned to segments.  All that is left to do is to ensure
   2552      1.1  christos      there is no mixing of VLE & non-VLE sections in a text segment.
   2553      1.1  christos      If we find that case, we split the segment.
   2554      1.1  christos      We maintain the original output section order.  */
   2555  1.1.1.5  christos 
   2556  1.1.1.5  christos   for (m = elf_seg_map (abfd); m != NULL; m = m->next)
   2557  1.1.1.5  christos     {
   2558  1.1.1.5  christos       struct elf_segment_map *n;
   2559  1.1.1.5  christos       bfd_size_type amt;
   2560  1.1.1.5  christos       unsigned int j, k;
   2561      1.1  christos       unsigned int p_flags;
   2562      1.1  christos 
   2563  1.1.1.5  christos       if (m->p_type != PT_LOAD || m->count == 0)
   2564      1.1  christos 	continue;
   2565  1.1.1.5  christos 
   2566  1.1.1.5  christos       for (p_flags = PF_R, j = 0; j != m->count; ++j)
   2567  1.1.1.5  christos 	{
   2568  1.1.1.5  christos 	  if ((m->sections[j]->flags & SEC_READONLY) == 0)
   2569  1.1.1.5  christos 	    p_flags |= PF_W;
   2570  1.1.1.5  christos 	  if ((m->sections[j]->flags & SEC_CODE) != 0)
   2571  1.1.1.5  christos 	    {
   2572  1.1.1.5  christos 	      p_flags |= PF_X;
   2573  1.1.1.5  christos 	      if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
   2574  1.1.1.5  christos 		p_flags |= PF_PPC_VLE;
   2575  1.1.1.5  christos 	      break;
   2576  1.1.1.5  christos 	    }
   2577  1.1.1.5  christos 	}
   2578  1.1.1.5  christos       if (j != m->count)
   2579      1.1  christos 	while (++j != m->count)
   2580  1.1.1.5  christos 	  {
   2581  1.1.1.5  christos 	    unsigned int p_flags1 = PF_R;
   2582  1.1.1.5  christos 
   2583  1.1.1.5  christos 	    if ((m->sections[j]->flags & SEC_READONLY) == 0)
   2584  1.1.1.5  christos 	      p_flags1 |= PF_W;
   2585  1.1.1.5  christos 	    if ((m->sections[j]->flags & SEC_CODE) != 0)
   2586  1.1.1.5  christos 	      {
   2587  1.1.1.5  christos 		p_flags1 |= PF_X;
   2588  1.1.1.5  christos 		if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
   2589  1.1.1.5  christos 		  p_flags1 |= PF_PPC_VLE;
   2590  1.1.1.5  christos 		if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
   2591  1.1.1.5  christos 		  break;
   2592  1.1.1.5  christos 	      }
   2593  1.1.1.5  christos 	    p_flags |= p_flags1;
   2594  1.1.1.5  christos 	  }
   2595  1.1.1.5  christos       /* If we're splitting a segment which originally contained rw
   2596  1.1.1.5  christos 	 sections then those sections might now only be in one of the
   2597  1.1.1.5  christos 	 two parts.  So always set p_flags if splitting, even if we
   2598  1.1.1.5  christos 	 are being called for objcopy with p_flags_valid set.  */
   2599  1.1.1.5  christos       if (j != m->count || !m->p_flags_valid)
   2600  1.1.1.5  christos 	{
   2601  1.1.1.5  christos 	  m->p_flags_valid = 1;
   2602      1.1  christos 	  m->p_flags = p_flags;
   2603      1.1  christos 	}
   2604  1.1.1.5  christos       if (j == m->count)
   2605      1.1  christos 	continue;
   2606      1.1  christos 
   2607      1.1  christos       /* Sections 0..j-1 stay in this (current) segment,
   2608      1.1  christos 	 the remainder are put in a new segment.
   2609      1.1  christos 	 The scan resumes with the new segment.  */
   2610      1.1  christos 
   2611      1.1  christos       amt = sizeof (struct elf_segment_map);
   2612      1.1  christos       amt += (m->count - j - 1) * sizeof (asection *);
   2613      1.1  christos       n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
   2614      1.1  christos       if (n == NULL)
   2615      1.1  christos         return FALSE;
   2616      1.1  christos 
   2617  1.1.1.5  christos       n->p_type = PT_LOAD;
   2618  1.1.1.5  christos       n->count = m->count - j;
   2619  1.1.1.5  christos       for (k = 0; k < n->count; ++k)
   2620      1.1  christos 	n->sections[k] = m->sections[j + k];
   2621      1.1  christos       m->count = j;
   2622      1.1  christos       m->p_size_valid = 0;
   2623      1.1  christos       n->next = m->next;
   2624      1.1  christos       m->next = n;
   2625      1.1  christos     }
   2626      1.1  christos 
   2627      1.1  christos   return TRUE;
   2628      1.1  christos }
   2629      1.1  christos 
   2630      1.1  christos /* Add extra PPC sections -- Note, for now, make .sbss2 and
   2631      1.1  christos    .PPC.EMB.sbss0 a normal section, and not a bss section so
   2632      1.1  christos    that the linker doesn't crater when trying to make more than
   2633      1.1  christos    2 sections.  */
   2634  1.1.1.4  christos 
   2635  1.1.1.4  christos static const struct bfd_elf_special_section ppc_elf_special_sections[] =
   2636  1.1.1.4  christos {
   2637  1.1.1.4  christos   { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
   2638  1.1.1.4  christos   { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
   2639  1.1.1.4  christos   { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
   2640  1.1.1.4  christos   { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
   2641  1.1.1.4  christos   { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
   2642  1.1.1.4  christos   { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
   2643  1.1.1.4  christos   { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
   2644      1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
   2645      1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
   2646      1.1  christos   { NULL, 0, 0, 0, 0 }
   2647      1.1  christos };
   2648      1.1  christos 
   2649      1.1  christos /* This is what we want for new plt/got.  */
   2650      1.1  christos static struct bfd_elf_special_section ppc_alt_plt =
   2651  1.1.1.5  christos   { STRING_COMMA_LEN (".plt"),             0, SHT_PROGBITS, SHF_ALLOC };
   2652      1.1  christos 
   2653      1.1  christos static const struct bfd_elf_special_section *
   2654      1.1  christos ppc_elf_get_sec_type_attr (bfd *abfd, asection *sec)
   2655      1.1  christos {
   2656      1.1  christos   const struct bfd_elf_special_section *ssect;
   2657      1.1  christos 
   2658      1.1  christos   /* See if this is one of the special sections.  */
   2659      1.1  christos   if (sec->name == NULL)
   2660      1.1  christos     return NULL;
   2661      1.1  christos 
   2662      1.1  christos   ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
   2663      1.1  christos 					sec->use_rela_p);
   2664      1.1  christos   if (ssect != NULL)
   2665      1.1  christos     {
   2666      1.1  christos       if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
   2667      1.1  christos 	ssect = &ppc_alt_plt;
   2668      1.1  christos       return ssect;
   2669      1.1  christos     }
   2670      1.1  christos 
   2671      1.1  christos   return _bfd_elf_get_sec_type_attr (abfd, sec);
   2672      1.1  christos }
   2673      1.1  christos 
   2674      1.1  christos /* Very simple linked list structure for recording apuinfo values.  */
   2676      1.1  christos typedef struct apuinfo_list
   2677      1.1  christos {
   2678      1.1  christos   struct apuinfo_list *next;
   2679      1.1  christos   unsigned long value;
   2680      1.1  christos }
   2681      1.1  christos apuinfo_list;
   2682      1.1  christos 
   2683      1.1  christos static apuinfo_list *head;
   2684      1.1  christos static bfd_boolean apuinfo_set;
   2685      1.1  christos 
   2686      1.1  christos static void
   2687      1.1  christos apuinfo_list_init (void)
   2688      1.1  christos {
   2689      1.1  christos   head = NULL;
   2690      1.1  christos   apuinfo_set = FALSE;
   2691      1.1  christos }
   2692      1.1  christos 
   2693      1.1  christos static void
   2694      1.1  christos apuinfo_list_add (unsigned long value)
   2695      1.1  christos {
   2696      1.1  christos   apuinfo_list *entry = head;
   2697      1.1  christos 
   2698      1.1  christos   while (entry != NULL)
   2699      1.1  christos     {
   2700      1.1  christos       if (entry->value == value)
   2701      1.1  christos 	return;
   2702      1.1  christos       entry = entry->next;
   2703      1.1  christos     }
   2704      1.1  christos 
   2705      1.1  christos   entry = bfd_malloc (sizeof (* entry));
   2706      1.1  christos   if (entry == NULL)
   2707      1.1  christos     return;
   2708      1.1  christos 
   2709      1.1  christos   entry->value = value;
   2710      1.1  christos   entry->next  = head;
   2711      1.1  christos   head = entry;
   2712      1.1  christos }
   2713      1.1  christos 
   2714      1.1  christos static unsigned
   2715      1.1  christos apuinfo_list_length (void)
   2716      1.1  christos {
   2717      1.1  christos   apuinfo_list *entry;
   2718      1.1  christos   unsigned long count;
   2719      1.1  christos 
   2720      1.1  christos   for (entry = head, count = 0;
   2721      1.1  christos        entry;
   2722      1.1  christos        entry = entry->next)
   2723      1.1  christos     ++ count;
   2724      1.1  christos 
   2725      1.1  christos   return count;
   2726      1.1  christos }
   2727      1.1  christos 
   2728      1.1  christos static inline unsigned long
   2729      1.1  christos apuinfo_list_element (unsigned long number)
   2730      1.1  christos {
   2731      1.1  christos   apuinfo_list * entry;
   2732      1.1  christos 
   2733      1.1  christos   for (entry = head;
   2734      1.1  christos        entry && number --;
   2735      1.1  christos        entry = entry->next)
   2736      1.1  christos     ;
   2737      1.1  christos 
   2738      1.1  christos   return entry ? entry->value : 0;
   2739      1.1  christos }
   2740      1.1  christos 
   2741      1.1  christos static void
   2742      1.1  christos apuinfo_list_finish (void)
   2743      1.1  christos {
   2744      1.1  christos   apuinfo_list *entry;
   2745      1.1  christos 
   2746      1.1  christos   for (entry = head; entry;)
   2747      1.1  christos     {
   2748      1.1  christos       apuinfo_list *next = entry->next;
   2749      1.1  christos       free (entry);
   2750      1.1  christos       entry = next;
   2751      1.1  christos     }
   2752      1.1  christos 
   2753      1.1  christos   head = NULL;
   2754      1.1  christos }
   2755      1.1  christos 
   2756      1.1  christos /* Scan the input BFDs and create a linked list of
   2757      1.1  christos    the APUinfo values that will need to be emitted.  */
   2758      1.1  christos 
   2759      1.1  christos static void
   2760      1.1  christos ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
   2761      1.1  christos {
   2762      1.1  christos   bfd *ibfd;
   2763      1.1  christos   asection *asec;
   2764      1.1  christos   char *buffer = NULL;
   2765      1.1  christos   bfd_size_type largest_input_size = 0;
   2766      1.1  christos   unsigned i;
   2767      1.1  christos   unsigned long length;
   2768      1.1  christos   const char *error_message = NULL;
   2769      1.1  christos 
   2770      1.1  christos   if (link_info == NULL)
   2771      1.1  christos     return;
   2772  1.1.1.2  christos 
   2773      1.1  christos   apuinfo_list_init ();
   2774      1.1  christos 
   2775      1.1  christos   /* Read in the input sections contents.  */
   2776      1.1  christos   for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
   2777      1.1  christos     {
   2778      1.1  christos       unsigned long datum;
   2779      1.1  christos 
   2780  1.1.1.5  christos       asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
   2781      1.1  christos       if (asec == NULL)
   2782      1.1  christos 	continue;
   2783      1.1  christos 
   2784      1.1  christos       /* xgettext:c-format */
   2785      1.1  christos       error_message = _("corrupt %s section in %B");
   2786      1.1  christos       length = asec->size;
   2787      1.1  christos       if (length < 20)
   2788      1.1  christos 	goto fail;
   2789      1.1  christos 
   2790      1.1  christos       apuinfo_set = TRUE;
   2791      1.1  christos       if (largest_input_size < asec->size)
   2792      1.1  christos 	{
   2793      1.1  christos 	  if (buffer)
   2794      1.1  christos 	    free (buffer);
   2795      1.1  christos 	  largest_input_size = asec->size;
   2796      1.1  christos 	  buffer = bfd_malloc (largest_input_size);
   2797      1.1  christos 	  if (!buffer)
   2798      1.1  christos 	    return;
   2799      1.1  christos 	}
   2800  1.1.1.5  christos 
   2801      1.1  christos       if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
   2802      1.1  christos 	  || (bfd_bread (buffer, length, ibfd) != length))
   2803      1.1  christos 	{
   2804      1.1  christos 	  /* xgettext:c-format */
   2805      1.1  christos 	  error_message = _("unable to read in %s section from %B");
   2806      1.1  christos 	  goto fail;
   2807      1.1  christos 	}
   2808      1.1  christos 
   2809      1.1  christos       /* Verify the contents of the header.  Note - we have to
   2810      1.1  christos 	 extract the values this way in order to allow for a
   2811      1.1  christos 	 host whose endian-ness is different from the target.  */
   2812      1.1  christos       datum = bfd_get_32 (ibfd, buffer);
   2813      1.1  christos       if (datum != sizeof APUINFO_LABEL)
   2814      1.1  christos 	goto fail;
   2815      1.1  christos 
   2816      1.1  christos       datum = bfd_get_32 (ibfd, buffer + 8);
   2817      1.1  christos       if (datum != 0x2)
   2818      1.1  christos 	goto fail;
   2819      1.1  christos 
   2820      1.1  christos       if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
   2821      1.1  christos 	goto fail;
   2822      1.1  christos 
   2823      1.1  christos       /* Get the number of bytes used for apuinfo entries.  */
   2824      1.1  christos       datum = bfd_get_32 (ibfd, buffer + 4);
   2825      1.1  christos       if (datum + 20 != length)
   2826      1.1  christos 	goto fail;
   2827      1.1  christos 
   2828      1.1  christos       /* Scan the apuinfo section, building a list of apuinfo numbers.  */
   2829      1.1  christos       for (i = 0; i < datum; i += 4)
   2830      1.1  christos 	apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
   2831      1.1  christos     }
   2832      1.1  christos 
   2833      1.1  christos   error_message = NULL;
   2834      1.1  christos 
   2835      1.1  christos   if (apuinfo_set)
   2836      1.1  christos     {
   2837      1.1  christos       /* Compute the size of the output section.  */
   2838      1.1  christos       unsigned num_entries = apuinfo_list_length ();
   2839      1.1  christos 
   2840      1.1  christos       /* Set the output section size, if it exists.  */
   2841      1.1  christos       asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2842  1.1.1.5  christos 
   2843      1.1  christos       if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
   2844      1.1  christos 	{
   2845      1.1  christos 	  ibfd = abfd;
   2846      1.1  christos 	  /* xgettext:c-format */
   2847      1.1  christos 	  error_message = _("warning: unable to set size of %s section in %B");
   2848      1.1  christos 	}
   2849      1.1  christos     }
   2850      1.1  christos 
   2851      1.1  christos  fail:
   2852  1.1.1.5  christos   if (buffer)
   2853      1.1  christos     free (buffer);
   2854      1.1  christos 
   2855      1.1  christos   if (error_message)
   2856      1.1  christos     _bfd_error_handler (error_message, ibfd, APUINFO_SECTION_NAME);
   2857      1.1  christos }
   2858      1.1  christos 
   2859      1.1  christos /* Prevent the output section from accumulating the input sections'
   2860      1.1  christos    contents.  We have already stored this in our linked list structure.  */
   2861      1.1  christos 
   2862      1.1  christos static bfd_boolean
   2863      1.1  christos ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
   2864      1.1  christos 		       struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
   2865      1.1  christos 		       asection *asec,
   2866      1.1  christos 		       bfd_byte *contents ATTRIBUTE_UNUSED)
   2867      1.1  christos {
   2868      1.1  christos   return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
   2869      1.1  christos }
   2870      1.1  christos 
   2871      1.1  christos /* Finally we can generate the output section.  */
   2872      1.1  christos 
   2873      1.1  christos static void
   2874      1.1  christos ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
   2875      1.1  christos {
   2876      1.1  christos   bfd_byte *buffer;
   2877      1.1  christos   asection *asec;
   2878      1.1  christos   unsigned i;
   2879      1.1  christos   unsigned num_entries;
   2880      1.1  christos   bfd_size_type length;
   2881      1.1  christos 
   2882      1.1  christos   asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2883      1.1  christos   if (asec == NULL)
   2884      1.1  christos     return;
   2885      1.1  christos 
   2886      1.1  christos   if (!apuinfo_set)
   2887      1.1  christos     return;
   2888      1.1  christos 
   2889      1.1  christos   length = asec->size;
   2890      1.1  christos   if (length < 20)
   2891      1.1  christos     return;
   2892  1.1.1.5  christos 
   2893      1.1  christos   buffer = bfd_malloc (length);
   2894      1.1  christos   if (buffer == NULL)
   2895      1.1  christos     {
   2896      1.1  christos       _bfd_error_handler
   2897      1.1  christos 	(_("failed to allocate space for new APUinfo section."));
   2898      1.1  christos       return;
   2899      1.1  christos     }
   2900      1.1  christos 
   2901      1.1  christos   /* Create the apuinfo header.  */
   2902      1.1  christos   num_entries = apuinfo_list_length ();
   2903      1.1  christos   bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
   2904      1.1  christos   bfd_put_32 (abfd, num_entries * 4, buffer + 4);
   2905      1.1  christos   bfd_put_32 (abfd, 0x2, buffer + 8);
   2906      1.1  christos   strcpy ((char *) buffer + 12, APUINFO_LABEL);
   2907      1.1  christos 
   2908      1.1  christos   length = 20;
   2909      1.1  christos   for (i = 0; i < num_entries; i++)
   2910      1.1  christos     {
   2911      1.1  christos       bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
   2912  1.1.1.5  christos       length += 4;
   2913      1.1  christos     }
   2914      1.1  christos 
   2915  1.1.1.5  christos   if (length != asec->size)
   2916      1.1  christos     _bfd_error_handler (_("failed to compute new APUinfo section."));
   2917      1.1  christos 
   2918      1.1  christos   if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
   2919      1.1  christos     _bfd_error_handler (_("failed to install new APUinfo section."));
   2920      1.1  christos 
   2921      1.1  christos   free (buffer);
   2922      1.1  christos 
   2923      1.1  christos   apuinfo_list_finish ();
   2924      1.1  christos }
   2925      1.1  christos 
   2926      1.1  christos static bfd_boolean
   2928      1.1  christos is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
   2929      1.1  christos {
   2930      1.1  christos   bfd_byte buf[GLINK_ENTRY_SIZE];
   2931      1.1  christos 
   2932      1.1  christos   if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
   2933      1.1  christos     return FALSE;
   2934      1.1  christos 
   2935      1.1  christos   return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
   2936      1.1  christos 	  && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
   2937      1.1  christos 	  && bfd_get_32 (abfd, buf + 8) == MTCTR_11
   2938      1.1  christos 	  && bfd_get_32 (abfd, buf + 12) == BCTR);
   2939      1.1  christos }
   2940      1.1  christos 
   2941      1.1  christos static bfd_boolean
   2942      1.1  christos section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
   2943      1.1  christos {
   2944      1.1  christos   bfd_vma vma = *(bfd_vma *) ptr;
   2945      1.1  christos   return ((section->flags & SEC_ALLOC) != 0
   2946      1.1  christos 	  && section->vma <= vma
   2947      1.1  christos 	  && vma < section->vma + section->size);
   2948      1.1  christos }
   2949      1.1  christos 
   2950      1.1  christos static long
   2951      1.1  christos ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
   2952      1.1  christos 			      long dynsymcount, asymbol **dynsyms,
   2953      1.1  christos 			      asymbol **ret)
   2954      1.1  christos {
   2955      1.1  christos   bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
   2956      1.1  christos   asection *plt, *relplt, *dynamic, *glink;
   2957      1.1  christos   bfd_vma glink_vma = 0;
   2958      1.1  christos   bfd_vma resolv_vma = 0;
   2959      1.1  christos   bfd_vma stub_vma;
   2960      1.1  christos   asymbol *s;
   2961      1.1  christos   arelent *p;
   2962      1.1  christos   long count, i;
   2963      1.1  christos   size_t size;
   2964      1.1  christos   char *names;
   2965      1.1  christos   bfd_byte buf[4];
   2966      1.1  christos 
   2967      1.1  christos   *ret = NULL;
   2968      1.1  christos 
   2969      1.1  christos   if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
   2970      1.1  christos     return 0;
   2971      1.1  christos 
   2972      1.1  christos   if (dynsymcount <= 0)
   2973      1.1  christos     return 0;
   2974      1.1  christos 
   2975      1.1  christos   relplt = bfd_get_section_by_name (abfd, ".rela.plt");
   2976      1.1  christos   if (relplt == NULL)
   2977      1.1  christos     return 0;
   2978      1.1  christos 
   2979      1.1  christos   plt = bfd_get_section_by_name (abfd, ".plt");
   2980      1.1  christos   if (plt == NULL)
   2981      1.1  christos     return 0;
   2982      1.1  christos 
   2983      1.1  christos   /* Call common code to handle old-style executable PLTs.  */
   2984      1.1  christos   if (elf_section_flags (plt) & SHF_EXECINSTR)
   2985      1.1  christos     return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
   2986      1.1  christos 					  dynsymcount, dynsyms, ret);
   2987      1.1  christos 
   2988      1.1  christos   /* If this object was prelinked, the prelinker stored the address
   2989      1.1  christos      of .glink at got[1].  If it wasn't prelinked, got[1] will be zero.  */
   2990      1.1  christos   dynamic = bfd_get_section_by_name (abfd, ".dynamic");
   2991      1.1  christos   if (dynamic != NULL)
   2992      1.1  christos     {
   2993      1.1  christos       bfd_byte *dynbuf, *extdyn, *extdynend;
   2994      1.1  christos       size_t extdynsize;
   2995      1.1  christos       void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
   2996      1.1  christos 
   2997      1.1  christos       if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
   2998      1.1  christos 	return -1;
   2999      1.1  christos 
   3000      1.1  christos       extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
   3001      1.1  christos       swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
   3002      1.1  christos 
   3003      1.1  christos       extdyn = dynbuf;
   3004      1.1  christos       extdynend = extdyn + dynamic->size;
   3005      1.1  christos       for (; extdyn < extdynend; extdyn += extdynsize)
   3006      1.1  christos 	{
   3007      1.1  christos 	  Elf_Internal_Dyn dyn;
   3008      1.1  christos 	  (*swap_dyn_in) (abfd, extdyn, &dyn);
   3009      1.1  christos 
   3010      1.1  christos 	  if (dyn.d_tag == DT_NULL)
   3011      1.1  christos 	    break;
   3012      1.1  christos 
   3013      1.1  christos 	  if (dyn.d_tag == DT_PPC_GOT)
   3014      1.1  christos 	    {
   3015      1.1  christos 	      unsigned int g_o_t = dyn.d_un.d_val;
   3016      1.1  christos 	      asection *got = bfd_get_section_by_name (abfd, ".got");
   3017      1.1  christos 	      if (got != NULL
   3018      1.1  christos 		  && bfd_get_section_contents (abfd, got, buf,
   3019      1.1  christos 					       g_o_t - got->vma + 4, 4))
   3020      1.1  christos 		glink_vma = bfd_get_32 (abfd, buf);
   3021      1.1  christos 	      break;
   3022      1.1  christos 	    }
   3023      1.1  christos 	}
   3024      1.1  christos       free (dynbuf);
   3025      1.1  christos     }
   3026      1.1  christos 
   3027      1.1  christos   /* Otherwise we read the first plt entry.  */
   3028      1.1  christos   if (glink_vma == 0)
   3029      1.1  christos     {
   3030      1.1  christos       if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
   3031      1.1  christos 	glink_vma = bfd_get_32 (abfd, buf);
   3032      1.1  christos     }
   3033      1.1  christos 
   3034      1.1  christos   if (glink_vma == 0)
   3035      1.1  christos     return 0;
   3036      1.1  christos 
   3037      1.1  christos   /* The .glink section usually does not survive the final
   3038      1.1  christos      link; search for the section (usually .text) where the
   3039      1.1  christos      glink stubs now reside.  */
   3040      1.1  christos   glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
   3041      1.1  christos   if (glink == NULL)
   3042      1.1  christos     return 0;
   3043      1.1  christos 
   3044      1.1  christos   /* Determine glink PLT resolver by reading the relative branch
   3045      1.1  christos      from the first glink stub.  */
   3046      1.1  christos   if (bfd_get_section_contents (abfd, glink, buf,
   3047      1.1  christos 				glink_vma - glink->vma, 4))
   3048      1.1  christos     {
   3049      1.1  christos       unsigned int insn = bfd_get_32 (abfd, buf);
   3050      1.1  christos 
   3051      1.1  christos       /* The first glink stub may either branch to the resolver ...  */
   3052      1.1  christos       insn ^= B;
   3053      1.1  christos       if ((insn & ~0x3fffffc) == 0)
   3054      1.1  christos 	resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
   3055      1.1  christos 
   3056      1.1  christos       /* ... or fall through a bunch of NOPs.  */
   3057      1.1  christos       else if ((insn ^ B ^ NOP) == 0)
   3058      1.1  christos 	for (i = 4;
   3059      1.1  christos 	     bfd_get_section_contents (abfd, glink, buf,
   3060      1.1  christos 				       glink_vma - glink->vma + i, 4);
   3061      1.1  christos 	     i += 4)
   3062      1.1  christos 	  if (bfd_get_32 (abfd, buf) != NOP)
   3063      1.1  christos 	    {
   3064      1.1  christos 	      resolv_vma = glink_vma + i;
   3065      1.1  christos 	      break;
   3066      1.1  christos 	    }
   3067      1.1  christos     }
   3068      1.1  christos 
   3069      1.1  christos   count = relplt->size / sizeof (Elf32_External_Rela);
   3070      1.1  christos   /* If the stubs are those for -shared/-pie then we might have
   3071      1.1  christos      multiple stubs for each plt entry.  If that is the case then
   3072      1.1  christos      there is no way to associate stubs with their plt entries short
   3073      1.1  christos      of figuring out the GOT pointer value used in the stub.  */
   3074      1.1  christos   if (!is_nonpic_glink_stub (abfd, glink,
   3075      1.1  christos 			     glink_vma - GLINK_ENTRY_SIZE - glink->vma))
   3076      1.1  christos     return 0;
   3077      1.1  christos 
   3078      1.1  christos   slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
   3079      1.1  christos   if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
   3080      1.1  christos     return -1;
   3081      1.1  christos 
   3082      1.1  christos   size = count * sizeof (asymbol);
   3083      1.1  christos   p = relplt->relocation;
   3084      1.1  christos   for (i = 0; i < count; i++, p++)
   3085      1.1  christos     {
   3086      1.1  christos       size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
   3087      1.1  christos       if (p->addend != 0)
   3088      1.1  christos 	size += sizeof ("+0x") - 1 + 8;
   3089      1.1  christos     }
   3090      1.1  christos 
   3091      1.1  christos   size += sizeof (asymbol) + sizeof ("__glink");
   3092      1.1  christos 
   3093      1.1  christos   if (resolv_vma)
   3094      1.1  christos     size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
   3095  1.1.1.3  christos 
   3096      1.1  christos   s = *ret = bfd_malloc (size);
   3097  1.1.1.3  christos   if (s == NULL)
   3098  1.1.1.3  christos     return -1;
   3099      1.1  christos 
   3100      1.1  christos   stub_vma = glink_vma;
   3101      1.1  christos   names = (char *) (s + count + 1 + (resolv_vma != 0));
   3102      1.1  christos   p = relplt->relocation + count - 1;
   3103      1.1  christos   for (i = 0; i < count; i++)
   3104      1.1  christos     {
   3105      1.1  christos       size_t len;
   3106      1.1  christos 
   3107      1.1  christos       *s = **p->sym_ptr_ptr;
   3108      1.1  christos       /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set.  Since
   3109  1.1.1.3  christos 	 we are defining a symbol, ensure one of them is set.  */
   3110  1.1.1.3  christos       if ((s->flags & BSF_LOCAL) == 0)
   3111  1.1.1.3  christos 	s->flags |= BSF_GLOBAL;
   3112      1.1  christos       s->flags |= BSF_SYNTHETIC;
   3113      1.1  christos       s->section = glink;
   3114      1.1  christos       stub_vma -= 16;
   3115      1.1  christos       if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
   3116      1.1  christos 	stub_vma -= 32;
   3117      1.1  christos       s->value = stub_vma - glink->vma;
   3118      1.1  christos       s->name = names;
   3119      1.1  christos       s->udata.p = NULL;
   3120      1.1  christos       len = strlen ((*p->sym_ptr_ptr)->name);
   3121      1.1  christos       memcpy (names, (*p->sym_ptr_ptr)->name, len);
   3122      1.1  christos       names += len;
   3123      1.1  christos       if (p->addend != 0)
   3124      1.1  christos 	{
   3125      1.1  christos 	  memcpy (names, "+0x", sizeof ("+0x") - 1);
   3126      1.1  christos 	  names += sizeof ("+0x") - 1;
   3127      1.1  christos 	  bfd_sprintf_vma (abfd, names, p->addend);
   3128  1.1.1.3  christos 	  names += strlen (names);
   3129      1.1  christos 	}
   3130      1.1  christos       memcpy (names, "@plt", sizeof ("@plt"));
   3131      1.1  christos       names += sizeof ("@plt");
   3132      1.1  christos       ++s;
   3133      1.1  christos       --p;
   3134      1.1  christos     }
   3135      1.1  christos 
   3136      1.1  christos   /* Add a symbol at the start of the glink branch table.  */
   3137      1.1  christos   memset (s, 0, sizeof *s);
   3138      1.1  christos   s->the_bfd = abfd;
   3139      1.1  christos   s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3140      1.1  christos   s->section = glink;
   3141      1.1  christos   s->value = glink_vma - glink->vma;
   3142      1.1  christos   s->name = names;
   3143      1.1  christos   memcpy (names, "__glink", sizeof ("__glink"));
   3144      1.1  christos   names += sizeof ("__glink");
   3145      1.1  christos   s++;
   3146      1.1  christos   count++;
   3147      1.1  christos 
   3148      1.1  christos   if (resolv_vma)
   3149      1.1  christos     {
   3150      1.1  christos       /* Add a symbol for the glink PLT resolver.  */
   3151      1.1  christos       memset (s, 0, sizeof *s);
   3152      1.1  christos       s->the_bfd = abfd;
   3153      1.1  christos       s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3154      1.1  christos       s->section = glink;
   3155      1.1  christos       s->value = resolv_vma - glink->vma;
   3156      1.1  christos       s->name = names;
   3157      1.1  christos       memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
   3158      1.1  christos       names += sizeof ("__glink_PLTresolve");
   3159      1.1  christos       s++;
   3160      1.1  christos       count++;
   3161      1.1  christos     }
   3162      1.1  christos 
   3163      1.1  christos   return count;
   3164      1.1  christos }
   3165      1.1  christos 
   3166      1.1  christos /* The following functions are specific to the ELF linker, while
   3168      1.1  christos    functions above are used generally.  They appear in this file more
   3169      1.1  christos    or less in the order in which they are called.  eg.
   3170      1.1  christos    ppc_elf_check_relocs is called early in the link process,
   3171      1.1  christos    ppc_elf_finish_dynamic_sections is one of the last functions
   3172      1.1  christos    called.  */
   3173      1.1  christos 
   3174      1.1  christos /* Track PLT entries needed for a given symbol.  We might need more
   3175      1.1  christos    than one glink entry per symbol when generating a pic binary.  */
   3176      1.1  christos struct plt_entry
   3177      1.1  christos {
   3178      1.1  christos   struct plt_entry *next;
   3179      1.1  christos 
   3180      1.1  christos   /* -fPIC uses multiple GOT sections, one per file, called ".got2".
   3181      1.1  christos      This field stores the offset into .got2 used to initialise the
   3182      1.1  christos      GOT pointer reg.  It will always be at least 32768.  (Current
   3183      1.1  christos      gcc always uses an offset of 32768, but ld -r will pack .got2
   3184      1.1  christos      sections together resulting in larger offsets).  */
   3185      1.1  christos   bfd_vma addend;
   3186      1.1  christos 
   3187      1.1  christos   /* The .got2 section.  */
   3188      1.1  christos   asection *sec;
   3189      1.1  christos 
   3190      1.1  christos   /* PLT refcount or offset.  */
   3191      1.1  christos   union
   3192      1.1  christos     {
   3193      1.1  christos       bfd_signed_vma refcount;
   3194      1.1  christos       bfd_vma offset;
   3195      1.1  christos     } plt;
   3196      1.1  christos 
   3197      1.1  christos   /* .glink stub offset.  */
   3198      1.1  christos   bfd_vma glink_offset;
   3199      1.1  christos };
   3200      1.1  christos 
   3201      1.1  christos /* Of those relocs that might be copied as dynamic relocs, this function
   3202      1.1  christos    selects those that must be copied when linking a shared library,
   3203      1.1  christos    even when the symbol is local.  */
   3204      1.1  christos 
   3205      1.1  christos static int
   3206      1.1  christos must_be_dyn_reloc (struct bfd_link_info *info,
   3207      1.1  christos 		   enum elf_ppc_reloc_type r_type)
   3208      1.1  christos {
   3209      1.1  christos   switch (r_type)
   3210      1.1  christos     {
   3211      1.1  christos     default:
   3212      1.1  christos       return 1;
   3213      1.1  christos 
   3214      1.1  christos     case R_PPC_REL24:
   3215      1.1  christos     case R_PPC_REL14:
   3216      1.1  christos     case R_PPC_REL14_BRTAKEN:
   3217      1.1  christos     case R_PPC_REL14_BRNTAKEN:
   3218      1.1  christos     case R_PPC_REL32:
   3219      1.1  christos       return 0;
   3220  1.1.1.4  christos 
   3221      1.1  christos     case R_PPC_TPREL32:
   3222      1.1  christos     case R_PPC_TPREL16:
   3223      1.1  christos     case R_PPC_TPREL16_LO:
   3224      1.1  christos     case R_PPC_TPREL16_HI:
   3225      1.1  christos     case R_PPC_TPREL16_HA:
   3226      1.1  christos       return !bfd_link_executable (info);
   3227      1.1  christos     }
   3228      1.1  christos }
   3229      1.1  christos 
   3230      1.1  christos /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
   3231      1.1  christos    copying dynamic variables from a shared lib into an app's dynbss
   3232      1.1  christos    section, and instead use a dynamic relocation to point into the
   3233      1.1  christos    shared lib.  */
   3234      1.1  christos #define ELIMINATE_COPY_RELOCS 1
   3235      1.1  christos 
   3236      1.1  christos /* Used to track dynamic relocations for local symbols.  */
   3237      1.1  christos struct ppc_dyn_relocs
   3238      1.1  christos {
   3239      1.1  christos   struct ppc_dyn_relocs *next;
   3240      1.1  christos 
   3241      1.1  christos   /* The input section of the reloc.  */
   3242      1.1  christos   asection *sec;
   3243      1.1  christos 
   3244      1.1  christos   /* Total number of relocs copied for the input section.  */
   3245      1.1  christos   unsigned int count : 31;
   3246      1.1  christos 
   3247      1.1  christos   /* Whether this entry is for STT_GNU_IFUNC symbols.  */
   3248      1.1  christos   unsigned int ifunc : 1;
   3249      1.1  christos };
   3250      1.1  christos 
   3251      1.1  christos /* PPC ELF linker hash entry.  */
   3252      1.1  christos 
   3253      1.1  christos struct ppc_elf_link_hash_entry
   3254      1.1  christos {
   3255      1.1  christos   struct elf_link_hash_entry elf;
   3256      1.1  christos 
   3257      1.1  christos   /* If this symbol is used in the linker created sections, the processor
   3258      1.1  christos      specific backend uses this field to map the field into the offset
   3259      1.1  christos      from the beginning of the section.  */
   3260      1.1  christos   elf_linker_section_pointers_t *linker_section_pointer;
   3261      1.1  christos 
   3262      1.1  christos   /* Track dynamic relocs copied for this symbol.  */
   3263      1.1  christos   struct elf_dyn_relocs *dyn_relocs;
   3264      1.1  christos 
   3265      1.1  christos   /* Contexts in which symbol is used in the GOT (or TOC).
   3266      1.1  christos      TLS_GD .. TLS_TLS bits are or'd into the mask as the
   3267      1.1  christos      corresponding relocs are encountered during check_relocs.
   3268      1.1  christos      tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
   3269      1.1  christos      indicate the corresponding GOT entry type is not needed.  */
   3270      1.1  christos #define TLS_GD		 1	/* GD reloc. */
   3271      1.1  christos #define TLS_LD		 2	/* LD reloc. */
   3272      1.1  christos #define TLS_TPREL	 4	/* TPREL reloc, => IE. */
   3273      1.1  christos #define TLS_DTPREL	 8	/* DTPREL reloc, => LD. */
   3274      1.1  christos #define TLS_TLS		16	/* Any TLS reloc.  */
   3275  1.1.1.3  christos #define TLS_TPRELGD	32	/* TPREL reloc resulting from GD->IE. */
   3276  1.1.1.3  christos #define PLT_IFUNC	64	/* STT_GNU_IFUNC.  */
   3277  1.1.1.3  christos   char tls_mask;
   3278  1.1.1.3  christos 
   3279  1.1.1.3  christos   /* Nonzero if we have seen a small data relocation referring to this
   3280      1.1  christos      symbol.  */
   3281      1.1  christos   unsigned char has_sda_refs : 1;
   3282      1.1  christos 
   3283      1.1  christos   /* Flag use of given relocations.  */
   3284      1.1  christos   unsigned char has_addr16_ha : 1;
   3285      1.1  christos   unsigned char has_addr16_lo : 1;
   3286      1.1  christos };
   3287      1.1  christos 
   3288      1.1  christos #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
   3289      1.1  christos 
   3290  1.1.1.2  christos /* PPC ELF linker hash table.  */
   3291  1.1.1.2  christos 
   3292  1.1.1.2  christos struct ppc_elf_link_hash_table
   3293      1.1  christos {
   3294      1.1  christos   struct elf_link_hash_table elf;
   3295      1.1  christos 
   3296      1.1  christos   /* Various options passed from the linker.  */
   3297      1.1  christos   struct ppc_elf_params *params;
   3298      1.1  christos 
   3299      1.1  christos   /* Short-cuts to get to dynamic linker sections.  */
   3300      1.1  christos   asection *glink;
   3301      1.1  christos   asection *dynsbss;
   3302      1.1  christos   asection *relsbss;
   3303      1.1  christos   elf_linker_section_t sdata[2];
   3304      1.1  christos   asection *sbss;
   3305      1.1  christos   asection *glink_eh_frame;
   3306      1.1  christos 
   3307      1.1  christos   /* The (unloaded but important) .rela.plt.unloaded on VxWorks.  */
   3308      1.1  christos   asection *srelplt2;
   3309      1.1  christos 
   3310      1.1  christos   /* Shortcut to __tls_get_addr.  */
   3311      1.1  christos   struct elf_link_hash_entry *tls_get_addr;
   3312      1.1  christos 
   3313      1.1  christos   /* The bfd that forced an old-style PLT.  */
   3314      1.1  christos   bfd *old_bfd;
   3315      1.1  christos 
   3316      1.1  christos   /* TLS local dynamic got entry handling.  */
   3317      1.1  christos   union {
   3318      1.1  christos     bfd_signed_vma refcount;
   3319      1.1  christos     bfd_vma offset;
   3320      1.1  christos   } tlsld_got;
   3321      1.1  christos 
   3322      1.1  christos   /* Offset of branch table to PltResolve function in glink.  */
   3323      1.1  christos   bfd_vma glink_pltresolve;
   3324      1.1  christos 
   3325      1.1  christos   /* Size of reserved GOT entries.  */
   3326      1.1  christos   unsigned int got_header_size;
   3327      1.1  christos   /* Non-zero if allocating the header left a gap.  */
   3328      1.1  christos   unsigned int got_gap;
   3329      1.1  christos 
   3330  1.1.1.5  christos   /* The type of PLT we have chosen to use.  */
   3331  1.1.1.5  christos   enum ppc_elf_plt_type plt_type;
   3332  1.1.1.5  christos 
   3333  1.1.1.5  christos   /* True if the target system is VxWorks.  */
   3334  1.1.1.5  christos   unsigned int is_vxworks:1;
   3335      1.1  christos 
   3336      1.1  christos   /* Whether there exist local gnu indirect function resolvers,
   3337      1.1  christos      referenced by dynamic relocations.  */
   3338      1.1  christos   unsigned int local_ifunc_resolver:1;
   3339      1.1  christos   unsigned int maybe_local_ifunc_resolver:1;
   3340      1.1  christos 
   3341      1.1  christos   /* The size of PLT entries.  */
   3342      1.1  christos   int plt_entry_size;
   3343      1.1  christos   /* The distance between adjacent PLT slots.  */
   3344      1.1  christos   int plt_slot_size;
   3345      1.1  christos   /* The size of the first PLT entry.  */
   3346      1.1  christos   int plt_initial_entry_size;
   3347      1.1  christos 
   3348      1.1  christos   /* Small local sym cache.  */
   3349      1.1  christos   struct sym_cache sym_cache;
   3350      1.1  christos };
   3351      1.1  christos 
   3352      1.1  christos /* Rename some of the generic section flags to better document how they
   3353      1.1  christos    are used for ppc32.  The flags are only valid for ppc32 elf objects.  */
   3354      1.1  christos 
   3355      1.1  christos /* Nonzero if this section has TLS related relocations.  */
   3356      1.1  christos #define has_tls_reloc sec_flg0
   3357      1.1  christos 
   3358      1.1  christos /* Nonzero if this section has a call to __tls_get_addr.  */
   3359      1.1  christos #define has_tls_get_addr_call sec_flg1
   3360      1.1  christos 
   3361      1.1  christos /* Get the PPC ELF linker hash table from a link_info structure.  */
   3362      1.1  christos 
   3363      1.1  christos #define ppc_elf_hash_table(p) \
   3364      1.1  christos   (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
   3365      1.1  christos   == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
   3366      1.1  christos 
   3367      1.1  christos /* Create an entry in a PPC ELF linker hash table.  */
   3368      1.1  christos 
   3369      1.1  christos static struct bfd_hash_entry *
   3370      1.1  christos ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
   3371      1.1  christos 			   struct bfd_hash_table *table,
   3372      1.1  christos 			   const char *string)
   3373      1.1  christos {
   3374      1.1  christos   /* Allocate the structure if it has not already been allocated by a
   3375      1.1  christos      subclass.  */
   3376      1.1  christos   if (entry == NULL)
   3377      1.1  christos     {
   3378      1.1  christos       entry = bfd_hash_allocate (table,
   3379      1.1  christos 				 sizeof (struct ppc_elf_link_hash_entry));
   3380      1.1  christos       if (entry == NULL)
   3381      1.1  christos 	return entry;
   3382      1.1  christos     }
   3383      1.1  christos 
   3384      1.1  christos   /* Call the allocation method of the superclass.  */
   3385      1.1  christos   entry = _bfd_elf_link_hash_newfunc (entry, table, string);
   3386      1.1  christos   if (entry != NULL)
   3387      1.1  christos     {
   3388      1.1  christos       ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
   3389      1.1  christos       ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
   3390      1.1  christos       ppc_elf_hash_entry (entry)->tls_mask = 0;
   3391      1.1  christos       ppc_elf_hash_entry (entry)->has_sda_refs = 0;
   3392      1.1  christos     }
   3393      1.1  christos 
   3394      1.1  christos   return entry;
   3395      1.1  christos }
   3396      1.1  christos 
   3397  1.1.1.4  christos /* Create a PPC ELF linker hash table.  */
   3398  1.1.1.5  christos 
   3399      1.1  christos static struct bfd_link_hash_table *
   3400      1.1  christos ppc_elf_link_hash_table_create (bfd *abfd)
   3401      1.1  christos {
   3402      1.1  christos   struct ppc_elf_link_hash_table *ret;
   3403      1.1  christos   static struct ppc_elf_params default_params
   3404      1.1  christos     = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0, 0 };
   3405      1.1  christos 
   3406      1.1  christos   ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
   3407      1.1  christos   if (ret == NULL)
   3408      1.1  christos     return NULL;
   3409      1.1  christos 
   3410      1.1  christos   if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
   3411      1.1  christos 				      ppc_elf_link_hash_newfunc,
   3412      1.1  christos 				      sizeof (struct ppc_elf_link_hash_entry),
   3413      1.1  christos 				      PPC32_ELF_DATA))
   3414      1.1  christos     {
   3415      1.1  christos       free (ret);
   3416      1.1  christos       return NULL;
   3417      1.1  christos     }
   3418  1.1.1.2  christos 
   3419  1.1.1.2  christos   ret->elf.init_plt_refcount.refcount = 0;
   3420      1.1  christos   ret->elf.init_plt_refcount.glist = NULL;
   3421      1.1  christos   ret->elf.init_plt_offset.offset = 0;
   3422      1.1  christos   ret->elf.init_plt_offset.glist = NULL;
   3423      1.1  christos 
   3424      1.1  christos   ret->params = &default_params;
   3425      1.1  christos 
   3426      1.1  christos   ret->sdata[0].name = ".sdata";
   3427      1.1  christos   ret->sdata[0].sym_name = "_SDA_BASE_";
   3428      1.1  christos   ret->sdata[0].bss_name = ".sbss";
   3429      1.1  christos 
   3430      1.1  christos   ret->sdata[1].name = ".sdata2";
   3431      1.1  christos   ret->sdata[1].sym_name = "_SDA2_BASE_";
   3432      1.1  christos   ret->sdata[1].bss_name = ".sbss2";
   3433      1.1  christos 
   3434      1.1  christos   ret->plt_entry_size = 12;
   3435  1.1.1.2  christos   ret->plt_slot_size = 8;
   3436  1.1.1.2  christos   ret->plt_initial_entry_size = 72;
   3437  1.1.1.2  christos 
   3438  1.1.1.2  christos   return &ret->elf.root;
   3439  1.1.1.2  christos }
   3440  1.1.1.2  christos 
   3441  1.1.1.2  christos /* Hook linker params into hash table.  */
   3442  1.1.1.2  christos 
   3443  1.1.1.2  christos void
   3444  1.1.1.4  christos ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
   3445  1.1.1.2  christos {
   3446  1.1.1.2  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3447      1.1  christos 
   3448      1.1  christos   if (htab)
   3449      1.1  christos     htab->params = params;
   3450      1.1  christos   params->pagesize_p2 = bfd_log2 (params->pagesize);
   3451      1.1  christos }
   3452      1.1  christos 
   3453      1.1  christos /* Create .got and the related sections.  */
   3454      1.1  christos 
   3455      1.1  christos static bfd_boolean
   3456      1.1  christos ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
   3457      1.1  christos {
   3458  1.1.1.5  christos   struct ppc_elf_link_hash_table *htab;
   3459      1.1  christos 
   3460      1.1  christos   if (!_bfd_elf_create_got_section (abfd, info))
   3461      1.1  christos     return FALSE;
   3462  1.1.1.5  christos 
   3463  1.1.1.5  christos   htab = ppc_elf_hash_table (info);
   3464  1.1.1.5  christos   if (!htab->is_vxworks)
   3465      1.1  christos     {
   3466      1.1  christos       /* The powerpc .got has a blrl instruction in it.  Mark it
   3467      1.1  christos 	 executable.  */
   3468      1.1  christos       flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
   3469      1.1  christos 			| SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3470      1.1  christos       if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
   3471  1.1.1.2  christos 	return FALSE;
   3472  1.1.1.2  christos     }
   3473  1.1.1.2  christos 
   3474  1.1.1.2  christos   return TRUE;
   3475  1.1.1.2  christos }
   3476  1.1.1.2  christos 
   3477  1.1.1.2  christos /* Create a special linker section, used for R_PPC_EMB_SDAI16 and
   3478  1.1.1.2  christos    R_PPC_EMB_SDA2I16 pointers.  These sections become part of .sdata
   3479  1.1.1.2  christos    and .sdata2.  Create _SDA_BASE_ and _SDA2_BASE too.  */
   3480  1.1.1.2  christos 
   3481  1.1.1.2  christos static bfd_boolean
   3482  1.1.1.2  christos ppc_elf_create_linker_section (bfd *abfd,
   3483  1.1.1.2  christos 			       struct bfd_link_info *info,
   3484  1.1.1.2  christos 			       flagword flags,
   3485  1.1.1.2  christos 			       elf_linker_section_t *lsect)
   3486  1.1.1.2  christos {
   3487  1.1.1.2  christos   asection *s;
   3488  1.1.1.2  christos 
   3489  1.1.1.2  christos   flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
   3490  1.1.1.2  christos 	    | SEC_LINKER_CREATED);
   3491  1.1.1.2  christos 
   3492  1.1.1.2  christos   s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
   3493  1.1.1.2  christos   if (s == NULL)
   3494  1.1.1.2  christos     return FALSE;
   3495  1.1.1.2  christos   lsect->section = s;
   3496  1.1.1.2  christos 
   3497  1.1.1.2  christos   /* Define the sym on the first section of this name.  */
   3498  1.1.1.2  christos   s = bfd_get_section_by_name (abfd, lsect->name);
   3499  1.1.1.2  christos 
   3500  1.1.1.2  christos   lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
   3501      1.1  christos   if (lsect->sym == NULL)
   3502      1.1  christos     return FALSE;
   3503      1.1  christos   lsect->sym->root.u.def.value = 0x8000;
   3504      1.1  christos   return TRUE;
   3505      1.1  christos }
   3506      1.1  christos 
   3507      1.1  christos static bfd_boolean
   3508      1.1  christos ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
   3509      1.1  christos {
   3510      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3511      1.1  christos   asection *s;
   3512      1.1  christos   flagword flags;
   3513  1.1.1.2  christos 
   3514  1.1.1.2  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
   3515      1.1  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3516      1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
   3517      1.1  christos   htab->glink = s;
   3518      1.1  christos   if (s == NULL
   3519      1.1  christos       || !bfd_set_section_alignment (abfd, s,
   3520      1.1  christos 				     htab->params->ppc476_workaround ? 6 : 4))
   3521      1.1  christos     return FALSE;
   3522      1.1  christos 
   3523      1.1  christos   if (!info->no_ld_generated_unwind_info)
   3524      1.1  christos     {
   3525      1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3526      1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3527      1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
   3528      1.1  christos       htab->glink_eh_frame = s;
   3529      1.1  christos       if (s == NULL
   3530  1.1.1.5  christos 	  || !bfd_set_section_alignment (abfd, s, 2))
   3531      1.1  christos 	return FALSE;
   3532      1.1  christos     }
   3533      1.1  christos 
   3534      1.1  christos   flags = SEC_ALLOC | SEC_LINKER_CREATED;
   3535      1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
   3536      1.1  christos   htab->elf.iplt = s;
   3537      1.1  christos   if (s == NULL
   3538  1.1.1.5  christos       || !bfd_set_section_alignment (abfd, s, 4))
   3539      1.1  christos     return FALSE;
   3540      1.1  christos 
   3541      1.1  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3542  1.1.1.2  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3543  1.1.1.2  christos   s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
   3544  1.1.1.2  christos   htab->elf.irelplt = s;
   3545  1.1.1.2  christos   if (s == NULL
   3546  1.1.1.2  christos       || ! bfd_set_section_alignment (abfd, s, 2))
   3547  1.1.1.2  christos     return FALSE;
   3548  1.1.1.2  christos 
   3549  1.1.1.2  christos   if (!ppc_elf_create_linker_section (abfd, info, 0,
   3550  1.1.1.2  christos 				      &htab->sdata[0]))
   3551      1.1  christos     return FALSE;
   3552      1.1  christos 
   3553      1.1  christos   if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
   3554      1.1  christos 				      &htab->sdata[1]))
   3555      1.1  christos     return FALSE;
   3556      1.1  christos 
   3557      1.1  christos   return TRUE;
   3558      1.1  christos }
   3559      1.1  christos 
   3560      1.1  christos /* We have to create .dynsbss and .rela.sbss here so that they get mapped
   3561      1.1  christos    to output sections (just like _bfd_elf_create_dynamic_sections has
   3562      1.1  christos    to create .dynbss and .rela.bss).  */
   3563      1.1  christos 
   3564      1.1  christos static bfd_boolean
   3565      1.1  christos ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
   3566      1.1  christos {
   3567  1.1.1.5  christos   struct ppc_elf_link_hash_table *htab;
   3568      1.1  christos   asection *s;
   3569      1.1  christos   flagword flags;
   3570      1.1  christos 
   3571      1.1  christos   htab = ppc_elf_hash_table (info);
   3572      1.1  christos 
   3573      1.1  christos   if (htab->elf.sgot == NULL
   3574      1.1  christos       && !ppc_elf_create_got (abfd, info))
   3575      1.1  christos     return FALSE;
   3576      1.1  christos 
   3577      1.1  christos   if (!_bfd_elf_create_dynamic_sections (abfd, info))
   3578      1.1  christos     return FALSE;
   3579      1.1  christos 
   3580      1.1  christos   if (htab->glink == NULL
   3581      1.1  christos       && !ppc_elf_create_glink (abfd, info))
   3582      1.1  christos     return FALSE;
   3583      1.1  christos 
   3584  1.1.1.4  christos   s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
   3585      1.1  christos 					  SEC_ALLOC | SEC_LINKER_CREATED);
   3586      1.1  christos   htab->dynsbss = s;
   3587      1.1  christos   if (s == NULL)
   3588      1.1  christos     return FALSE;
   3589      1.1  christos 
   3590      1.1  christos   if (! bfd_link_pic (info))
   3591      1.1  christos     {
   3592      1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3593      1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3594      1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
   3595      1.1  christos       htab->relsbss = s;
   3596      1.1  christos       if (s == NULL
   3597      1.1  christos 	  || ! bfd_set_section_alignment (abfd, s, 2))
   3598      1.1  christos 	return FALSE;
   3599  1.1.1.5  christos     }
   3600      1.1  christos 
   3601      1.1  christos   if (htab->is_vxworks
   3602      1.1  christos       && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
   3603      1.1  christos     return FALSE;
   3604      1.1  christos 
   3605      1.1  christos   s = htab->elf.splt;
   3606      1.1  christos   flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
   3607      1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   3608      1.1  christos     /* The VxWorks PLT is a loaded section with contents.  */
   3609      1.1  christos     flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
   3610      1.1  christos   return bfd_set_section_flags (abfd, s, flags);
   3611      1.1  christos }
   3612      1.1  christos 
   3613      1.1  christos /* Copy the extra info we tack onto an elf_link_hash_entry.  */
   3614      1.1  christos 
   3615      1.1  christos static void
   3616      1.1  christos ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
   3617      1.1  christos 			      struct elf_link_hash_entry *dir,
   3618      1.1  christos 			      struct elf_link_hash_entry *ind)
   3619      1.1  christos {
   3620      1.1  christos   struct ppc_elf_link_hash_entry *edir, *eind;
   3621      1.1  christos 
   3622      1.1  christos   edir = (struct ppc_elf_link_hash_entry *) dir;
   3623      1.1  christos   eind = (struct ppc_elf_link_hash_entry *) ind;
   3624      1.1  christos 
   3625      1.1  christos   edir->tls_mask |= eind->tls_mask;
   3626      1.1  christos   edir->has_sda_refs |= eind->has_sda_refs;
   3627      1.1  christos 
   3628      1.1  christos   /* If called to transfer flags for a weakdef during processing
   3629      1.1  christos      of elf_adjust_dynamic_symbol, don't copy non_got_ref.
   3630  1.1.1.5  christos      We clear it ourselves for ELIMINATE_COPY_RELOCS.  */
   3631  1.1.1.5  christos   if (!(ELIMINATE_COPY_RELOCS
   3632      1.1  christos 	&& eind->elf.root.type != bfd_link_hash_indirect
   3633      1.1  christos 	&& edir->elf.dynamic_adjusted))
   3634      1.1  christos     edir->elf.non_got_ref |= eind->elf.non_got_ref;
   3635      1.1  christos 
   3636      1.1  christos   if (edir->elf.versioned != versioned_hidden)
   3637      1.1  christos     edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
   3638      1.1  christos   edir->elf.ref_regular |= eind->elf.ref_regular;
   3639      1.1  christos   edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
   3640      1.1  christos   edir->elf.needs_plt |= eind->elf.needs_plt;
   3641      1.1  christos   edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
   3642      1.1  christos 
   3643      1.1  christos   if (eind->dyn_relocs != NULL)
   3644      1.1  christos     {
   3645      1.1  christos       if (edir->dyn_relocs != NULL)
   3646      1.1  christos 	{
   3647      1.1  christos 	  struct elf_dyn_relocs **pp;
   3648      1.1  christos 	  struct elf_dyn_relocs *p;
   3649      1.1  christos 
   3650      1.1  christos 	  /* Add reloc counts against the indirect sym to the direct sym
   3651      1.1  christos 	     list.  Merge any entries against the same section.  */
   3652      1.1  christos 	  for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
   3653      1.1  christos 	    {
   3654      1.1  christos 	      struct elf_dyn_relocs *q;
   3655      1.1  christos 
   3656      1.1  christos 	      for (q = edir->dyn_relocs; q != NULL; q = q->next)
   3657      1.1  christos 		if (q->sec == p->sec)
   3658      1.1  christos 		  {
   3659      1.1  christos 		    q->pc_count += p->pc_count;
   3660      1.1  christos 		    q->count += p->count;
   3661      1.1  christos 		    *pp = p->next;
   3662      1.1  christos 		    break;
   3663      1.1  christos 		  }
   3664      1.1  christos 	      if (q == NULL)
   3665      1.1  christos 		pp = &p->next;
   3666      1.1  christos 	    }
   3667      1.1  christos 	  *pp = edir->dyn_relocs;
   3668      1.1  christos 	}
   3669      1.1  christos 
   3670      1.1  christos       edir->dyn_relocs = eind->dyn_relocs;
   3671      1.1  christos       eind->dyn_relocs = NULL;
   3672      1.1  christos     }
   3673      1.1  christos 
   3674      1.1  christos   /* If we were called to copy over info for a weak sym, that's all.
   3675      1.1  christos      You might think dyn_relocs need not be copied over;  After all,
   3676      1.1  christos      both syms will be dynamic or both non-dynamic so we're just
   3677      1.1  christos      moving reloc accounting around.  However, ELIMINATE_COPY_RELOCS
   3678      1.1  christos      code in ppc_elf_adjust_dynamic_symbol needs to check for
   3679      1.1  christos      dyn_relocs in read-only sections, and it does so on what is the
   3680      1.1  christos      DIR sym here.  */
   3681      1.1  christos   if (eind->elf.root.type != bfd_link_hash_indirect)
   3682      1.1  christos     return;
   3683      1.1  christos 
   3684      1.1  christos   /* Copy over the GOT refcount entries that we may have already seen to
   3685      1.1  christos      the symbol which just became indirect.  */
   3686      1.1  christos   edir->elf.got.refcount += eind->elf.got.refcount;
   3687      1.1  christos   eind->elf.got.refcount = 0;
   3688      1.1  christos 
   3689      1.1  christos   /* And plt entries.  */
   3690      1.1  christos   if (eind->elf.plt.plist != NULL)
   3691      1.1  christos     {
   3692      1.1  christos       if (edir->elf.plt.plist != NULL)
   3693      1.1  christos 	{
   3694      1.1  christos 	  struct plt_entry **entp;
   3695      1.1  christos 	  struct plt_entry *ent;
   3696      1.1  christos 
   3697      1.1  christos 	  for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
   3698      1.1  christos 	    {
   3699      1.1  christos 	      struct plt_entry *dent;
   3700      1.1  christos 
   3701      1.1  christos 	      for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
   3702      1.1  christos 		if (dent->sec == ent->sec && dent->addend == ent->addend)
   3703      1.1  christos 		  {
   3704      1.1  christos 		    dent->plt.refcount += ent->plt.refcount;
   3705      1.1  christos 		    *entp = ent->next;
   3706      1.1  christos 		    break;
   3707      1.1  christos 		  }
   3708      1.1  christos 	      if (dent == NULL)
   3709      1.1  christos 		entp = &ent->next;
   3710      1.1  christos 	    }
   3711      1.1  christos 	  *entp = edir->elf.plt.plist;
   3712      1.1  christos 	}
   3713      1.1  christos 
   3714      1.1  christos       edir->elf.plt.plist = eind->elf.plt.plist;
   3715      1.1  christos       eind->elf.plt.plist = NULL;
   3716      1.1  christos     }
   3717      1.1  christos 
   3718      1.1  christos   if (eind->elf.dynindx != -1)
   3719      1.1  christos     {
   3720      1.1  christos       if (edir->elf.dynindx != -1)
   3721      1.1  christos 	_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   3722      1.1  christos 				edir->elf.dynstr_index);
   3723      1.1  christos       edir->elf.dynindx = eind->elf.dynindx;
   3724      1.1  christos       edir->elf.dynstr_index = eind->elf.dynstr_index;
   3725      1.1  christos       eind->elf.dynindx = -1;
   3726      1.1  christos       eind->elf.dynstr_index = 0;
   3727      1.1  christos     }
   3728      1.1  christos }
   3729      1.1  christos 
   3730      1.1  christos /* Hook called by the linker routine which adds symbols from an object
   3731      1.1  christos    file.  We use it to put .comm items in .sbss, and not .bss.  */
   3732      1.1  christos 
   3733      1.1  christos static bfd_boolean
   3734      1.1  christos ppc_elf_add_symbol_hook (bfd *abfd,
   3735      1.1  christos 			 struct bfd_link_info *info,
   3736      1.1  christos 			 Elf_Internal_Sym *sym,
   3737  1.1.1.4  christos 			 const char **namep ATTRIBUTE_UNUSED,
   3738      1.1  christos 			 flagword *flagsp ATTRIBUTE_UNUSED,
   3739      1.1  christos 			 asection **secp,
   3740      1.1  christos 			 bfd_vma *valp)
   3741      1.1  christos {
   3742      1.1  christos   if (sym->st_shndx == SHN_COMMON
   3743      1.1  christos       && !bfd_link_relocatable (info)
   3744      1.1  christos       && is_ppc_elf (info->output_bfd)
   3745      1.1  christos       && sym->st_size <= elf_gp_size (abfd))
   3746      1.1  christos     {
   3747      1.1  christos       /* Common symbols less than or equal to -G nn bytes are automatically
   3748      1.1  christos 	 put into .sbss.  */
   3749      1.1  christos       struct ppc_elf_link_hash_table *htab;
   3750      1.1  christos 
   3751      1.1  christos       htab = ppc_elf_hash_table (info);
   3752      1.1  christos       if (htab->sbss == NULL)
   3753      1.1  christos 	{
   3754      1.1  christos 	  flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
   3755      1.1  christos 
   3756      1.1  christos 	  if (!htab->elf.dynobj)
   3757      1.1  christos 	    htab->elf.dynobj = abfd;
   3758      1.1  christos 
   3759      1.1  christos 	  htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
   3760      1.1  christos 							   ".sbss",
   3761      1.1  christos 							   flags);
   3762      1.1  christos 	  if (htab->sbss == NULL)
   3763      1.1  christos 	    return FALSE;
   3764  1.1.1.4  christos 	}
   3765  1.1.1.2  christos 
   3766  1.1.1.2  christos       *secp = htab->sbss;
   3767  1.1.1.4  christos       *valp = sym->st_size;
   3768      1.1  christos     }
   3769      1.1  christos 
   3770      1.1  christos   if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
   3771      1.1  christos       && (abfd->flags & DYNAMIC) == 0
   3772      1.1  christos       && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
   3773      1.1  christos     elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
   3774      1.1  christos 
   3775      1.1  christos   return TRUE;
   3776      1.1  christos }
   3777      1.1  christos 
   3778      1.1  christos /* Find a linker generated pointer with a given addend and type.  */
   3780      1.1  christos 
   3781      1.1  christos static elf_linker_section_pointers_t *
   3782      1.1  christos elf_find_pointer_linker_section
   3783      1.1  christos   (elf_linker_section_pointers_t *linker_pointers,
   3784      1.1  christos    bfd_vma addend,
   3785      1.1  christos    elf_linker_section_t *lsect)
   3786      1.1  christos {
   3787      1.1  christos   for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
   3788      1.1  christos     if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
   3789      1.1  christos       return linker_pointers;
   3790  1.1.1.2  christos 
   3791  1.1.1.2  christos   return NULL;
   3792  1.1.1.2  christos }
   3793  1.1.1.2  christos 
   3794      1.1  christos /* Allocate a pointer to live in a linker created section.  */
   3795      1.1  christos 
   3796      1.1  christos static bfd_boolean
   3797      1.1  christos elf_allocate_pointer_linker_section (bfd *abfd,
   3798      1.1  christos 				     elf_linker_section_t *lsect,
   3799      1.1  christos 				     struct elf_link_hash_entry *h,
   3800      1.1  christos 				     const Elf_Internal_Rela *rel)
   3801      1.1  christos {
   3802      1.1  christos   elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
   3803      1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   3804      1.1  christos   unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   3805      1.1  christos   bfd_size_type amt;
   3806      1.1  christos 
   3807      1.1  christos   BFD_ASSERT (lsect != NULL);
   3808      1.1  christos 
   3809      1.1  christos   /* Is this a global symbol?  */
   3810      1.1  christos   if (h != NULL)
   3811      1.1  christos     {
   3812      1.1  christos       struct ppc_elf_link_hash_entry *eh;
   3813      1.1  christos 
   3814      1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3815      1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   3816      1.1  christos       if (elf_find_pointer_linker_section (eh->linker_section_pointer,
   3817      1.1  christos 					   rel->r_addend,
   3818      1.1  christos 					   lsect))
   3819      1.1  christos 	return TRUE;
   3820      1.1  christos 
   3821      1.1  christos       ptr_linker_section_ptr = &eh->linker_section_pointer;
   3822      1.1  christos     }
   3823      1.1  christos   else
   3824      1.1  christos     {
   3825      1.1  christos       BFD_ASSERT (is_ppc_elf (abfd));
   3826      1.1  christos 
   3827      1.1  christos       /* Allocation of a pointer to a local symbol.  */
   3828      1.1  christos       elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
   3829      1.1  christos 
   3830      1.1  christos       /* Allocate a table to hold the local symbols if first time.  */
   3831      1.1  christos       if (!ptr)
   3832      1.1  christos 	{
   3833      1.1  christos 	  unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
   3834      1.1  christos 
   3835      1.1  christos 	  amt = num_symbols;
   3836      1.1  christos 	  amt *= sizeof (elf_linker_section_pointers_t *);
   3837      1.1  christos 	  ptr = bfd_zalloc (abfd, amt);
   3838      1.1  christos 
   3839      1.1  christos 	  if (!ptr)
   3840      1.1  christos 	    return FALSE;
   3841      1.1  christos 
   3842      1.1  christos 	  elf_local_ptr_offsets (abfd) = ptr;
   3843      1.1  christos 	}
   3844      1.1  christos 
   3845      1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3846      1.1  christos       if (elf_find_pointer_linker_section (ptr[r_symndx],
   3847      1.1  christos 					   rel->r_addend,
   3848      1.1  christos 					   lsect))
   3849      1.1  christos 	return TRUE;
   3850      1.1  christos 
   3851      1.1  christos       ptr_linker_section_ptr = &ptr[r_symndx];
   3852      1.1  christos     }
   3853      1.1  christos 
   3854      1.1  christos   /* Allocate space for a pointer in the linker section, and allocate
   3855      1.1  christos      a new pointer record from internal memory.  */
   3856      1.1  christos   BFD_ASSERT (ptr_linker_section_ptr != NULL);
   3857      1.1  christos   amt = sizeof (elf_linker_section_pointers_t);
   3858      1.1  christos   linker_section_ptr = bfd_alloc (abfd, amt);
   3859      1.1  christos 
   3860      1.1  christos   if (!linker_section_ptr)
   3861  1.1.1.2  christos     return FALSE;
   3862  1.1.1.2  christos 
   3863      1.1  christos   linker_section_ptr->next = *ptr_linker_section_ptr;
   3864      1.1  christos   linker_section_ptr->addend = rel->r_addend;
   3865      1.1  christos   linker_section_ptr->lsect = lsect;
   3866      1.1  christos   *ptr_linker_section_ptr = linker_section_ptr;
   3867      1.1  christos 
   3868      1.1  christos   if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
   3869      1.1  christos     return FALSE;
   3870      1.1  christos   linker_section_ptr->offset = lsect->section->size;
   3871      1.1  christos   lsect->section->size += 4;
   3872      1.1  christos 
   3873      1.1  christos #ifdef DEBUG
   3874      1.1  christos   fprintf (stderr,
   3875      1.1  christos 	   "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
   3876      1.1  christos 	   lsect->name, (long) linker_section_ptr->offset,
   3877      1.1  christos 	   (long) lsect->section->size);
   3878      1.1  christos #endif
   3879      1.1  christos 
   3880      1.1  christos   return TRUE;
   3881      1.1  christos }
   3882      1.1  christos 
   3883      1.1  christos static struct plt_entry **
   3884      1.1  christos update_local_sym_info (bfd *abfd,
   3885      1.1  christos 		       Elf_Internal_Shdr *symtab_hdr,
   3886      1.1  christos 		       unsigned long r_symndx,
   3887      1.1  christos 		       int tls_type)
   3888      1.1  christos {
   3889      1.1  christos   bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
   3890      1.1  christos   struct plt_entry **local_plt;
   3891      1.1  christos   char *local_got_tls_masks;
   3892      1.1  christos 
   3893      1.1  christos   if (local_got_refcounts == NULL)
   3894      1.1  christos     {
   3895      1.1  christos       bfd_size_type size = symtab_hdr->sh_info;
   3896      1.1  christos 
   3897      1.1  christos       size *= (sizeof (*local_got_refcounts)
   3898      1.1  christos 	       + sizeof (*local_plt)
   3899      1.1  christos 	       + sizeof (*local_got_tls_masks));
   3900      1.1  christos       local_got_refcounts = bfd_zalloc (abfd, size);
   3901      1.1  christos       if (local_got_refcounts == NULL)
   3902      1.1  christos 	return NULL;
   3903      1.1  christos       elf_local_got_refcounts (abfd) = local_got_refcounts;
   3904      1.1  christos     }
   3905      1.1  christos 
   3906      1.1  christos   local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
   3907      1.1  christos   local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
   3908      1.1  christos   local_got_tls_masks[r_symndx] |= tls_type;
   3909      1.1  christos   if (tls_type != PLT_IFUNC)
   3910      1.1  christos     local_got_refcounts[r_symndx] += 1;
   3911      1.1  christos   return local_plt + r_symndx;
   3912      1.1  christos }
   3913      1.1  christos 
   3914      1.1  christos static bfd_boolean
   3915      1.1  christos update_plt_info (bfd *abfd, struct plt_entry **plist,
   3916      1.1  christos 		 asection *sec, bfd_vma addend)
   3917      1.1  christos {
   3918      1.1  christos   struct plt_entry *ent;
   3919      1.1  christos 
   3920      1.1  christos   if (addend < 32768)
   3921      1.1  christos     sec = NULL;
   3922      1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3923      1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3924      1.1  christos       break;
   3925      1.1  christos   if (ent == NULL)
   3926      1.1  christos     {
   3927      1.1  christos       bfd_size_type amt = sizeof (*ent);
   3928      1.1  christos       ent = bfd_alloc (abfd, amt);
   3929      1.1  christos       if (ent == NULL)
   3930      1.1  christos 	return FALSE;
   3931      1.1  christos       ent->next = *plist;
   3932      1.1  christos       ent->sec = sec;
   3933      1.1  christos       ent->addend = addend;
   3934      1.1  christos       ent->plt.refcount = 0;
   3935      1.1  christos       *plist = ent;
   3936      1.1  christos     }
   3937      1.1  christos   ent->plt.refcount += 1;
   3938      1.1  christos   return TRUE;
   3939      1.1  christos }
   3940      1.1  christos 
   3941      1.1  christos static struct plt_entry *
   3942      1.1  christos find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
   3943      1.1  christos {
   3944      1.1  christos   struct plt_entry *ent;
   3945      1.1  christos 
   3946      1.1  christos   if (addend < 32768)
   3947      1.1  christos     sec = NULL;
   3948      1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3949      1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3950      1.1  christos       break;
   3951      1.1  christos   return ent;
   3952      1.1  christos }
   3953      1.1  christos 
   3954      1.1  christos static bfd_boolean
   3955      1.1  christos is_branch_reloc (enum elf_ppc_reloc_type r_type)
   3956      1.1  christos {
   3957      1.1  christos   return (r_type == R_PPC_PLTREL24
   3958      1.1  christos 	  || r_type == R_PPC_LOCAL24PC
   3959  1.1.1.5  christos 	  || r_type == R_PPC_REL24
   3960  1.1.1.5  christos 	  || r_type == R_PPC_REL14
   3961      1.1  christos 	  || r_type == R_PPC_REL14_BRTAKEN
   3962      1.1  christos 	  || r_type == R_PPC_REL14_BRNTAKEN
   3963      1.1  christos 	  || r_type == R_PPC_ADDR24
   3964      1.1  christos 	  || r_type == R_PPC_ADDR14
   3965      1.1  christos 	  || r_type == R_PPC_ADDR14_BRTAKEN
   3966  1.1.1.5  christos 	  || r_type == R_PPC_ADDR14_BRNTAKEN
   3967  1.1.1.5  christos 	  || r_type == R_PPC_VLE_REL24);
   3968      1.1  christos }
   3969      1.1  christos 
   3970      1.1  christos static void
   3971      1.1  christos bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
   3972      1.1  christos {
   3973      1.1  christos   _bfd_error_handler
   3974      1.1  christos     /* xgettext:c-format */
   3975      1.1  christos     (_("%B: relocation %s cannot be used when making a shared object"),
   3976      1.1  christos      abfd,
   3977      1.1  christos      ppc_elf_howto_table[r_type]->name);
   3978      1.1  christos   bfd_set_error (bfd_error_bad_value);
   3979      1.1  christos }
   3980      1.1  christos 
   3981      1.1  christos /* Look through the relocs for a section during the first phase, and
   3982      1.1  christos    allocate space in the global offset table or procedure linkage
   3983      1.1  christos    table.  */
   3984      1.1  christos 
   3985      1.1  christos static bfd_boolean
   3986      1.1  christos ppc_elf_check_relocs (bfd *abfd,
   3987      1.1  christos 		      struct bfd_link_info *info,
   3988      1.1  christos 		      asection *sec,
   3989      1.1  christos 		      const Elf_Internal_Rela *relocs)
   3990      1.1  christos {
   3991      1.1  christos   struct ppc_elf_link_hash_table *htab;
   3992  1.1.1.4  christos   Elf_Internal_Shdr *symtab_hdr;
   3993      1.1  christos   struct elf_link_hash_entry **sym_hashes;
   3994      1.1  christos   const Elf_Internal_Rela *rel;
   3995      1.1  christos   const Elf_Internal_Rela *rel_end;
   3996      1.1  christos   asection *got2, *sreloc;
   3997      1.1  christos   struct elf_link_hash_entry *tga;
   3998      1.1  christos 
   3999      1.1  christos   if (bfd_link_relocatable (info))
   4000      1.1  christos     return TRUE;
   4001      1.1  christos 
   4002      1.1  christos   /* Don't do anything special with non-loaded, non-alloced sections.
   4003      1.1  christos      In particular, any relocs in such sections should not affect GOT
   4004      1.1  christos      and PLT reference counting (ie. we don't allow them to create GOT
   4005      1.1  christos      or PLT entries), there's no possibility or desire to optimize TLS
   4006      1.1  christos      relocs, and there's not much point in propagating relocs to shared
   4007      1.1  christos      libs that the dynamic linker won't relocate.  */
   4008      1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   4009      1.1  christos     return TRUE;
   4010      1.1  christos 
   4011      1.1  christos #ifdef DEBUG
   4012      1.1  christos   _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
   4013      1.1  christos 		      sec, abfd);
   4014      1.1  christos #endif
   4015      1.1  christos 
   4016      1.1  christos   BFD_ASSERT (is_ppc_elf (abfd));
   4017      1.1  christos 
   4018      1.1  christos   /* Initialize howto table if not already done.  */
   4019      1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   4020      1.1  christos     ppc_elf_howto_init ();
   4021      1.1  christos 
   4022      1.1  christos   htab = ppc_elf_hash_table (info);
   4023      1.1  christos   if (htab->glink == NULL)
   4024      1.1  christos     {
   4025      1.1  christos       if (htab->elf.dynobj == NULL)
   4026      1.1  christos 	htab->elf.dynobj = abfd;
   4027      1.1  christos       if (!ppc_elf_create_glink (htab->elf.dynobj, info))
   4028      1.1  christos 	return FALSE;
   4029      1.1  christos     }
   4030      1.1  christos   tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   4031      1.1  christos 			      FALSE, FALSE, TRUE);
   4032      1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   4033      1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   4034      1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   4035      1.1  christos   sreloc = NULL;
   4036      1.1  christos 
   4037  1.1.1.4  christos   rel_end = relocs + sec->reloc_count;
   4038      1.1  christos   for (rel = relocs; rel < rel_end; rel++)
   4039      1.1  christos     {
   4040      1.1  christos       unsigned long r_symndx;
   4041      1.1  christos       enum elf_ppc_reloc_type r_type;
   4042      1.1  christos       struct elf_link_hash_entry *h;
   4043      1.1  christos       int tls_type;
   4044      1.1  christos       struct plt_entry **ifunc;
   4045      1.1  christos 
   4046      1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   4047      1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   4048      1.1  christos 	h = NULL;
   4049      1.1  christos       else
   4050      1.1  christos 	{
   4051      1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   4052      1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   4053      1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   4054      1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   4055      1.1  christos 
   4056      1.1  christos 	  /* PR15323, ref flags aren't set for references in the same
   4057      1.1  christos 	     object.  */
   4058  1.1.1.5  christos 	  h->root.non_ir_ref = 1;
   4059      1.1  christos 	}
   4060      1.1  christos 
   4061      1.1  christos       /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
   4062      1.1  christos 	 This shows up in particular in an R_PPC_ADDR32 in the eabi
   4063      1.1  christos 	 startup code.  */
   4064      1.1  christos       if (h != NULL
   4065      1.1  christos 	  && htab->elf.sgot == NULL
   4066      1.1  christos 	  && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
   4067      1.1  christos 	{
   4068      1.1  christos 	  if (htab->elf.dynobj == NULL)
   4069      1.1  christos 	    htab->elf.dynobj = abfd;
   4070  1.1.1.4  christos 	  if (!ppc_elf_create_got (htab->elf.dynobj, info))
   4071      1.1  christos 	    return FALSE;
   4072      1.1  christos 	  BFD_ASSERT (h == htab->elf.hgot);
   4073      1.1  christos 	}
   4074      1.1  christos 
   4075      1.1  christos       tls_type = 0;
   4076      1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   4077      1.1  christos       ifunc = NULL;
   4078      1.1  christos       if (h == NULL && !htab->is_vxworks)
   4079      1.1  christos 	{
   4080      1.1  christos 	  Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4081      1.1  christos 							  abfd, r_symndx);
   4082      1.1  christos 	  if (isym == NULL)
   4083      1.1  christos 	    return FALSE;
   4084      1.1  christos 
   4085      1.1  christos 	  if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
   4086      1.1  christos 	    {
   4087      1.1  christos 	      /* Set PLT_IFUNC flag for this sym, no GOT entry yet.  */
   4088      1.1  christos 	      ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
   4089  1.1.1.4  christos 					     PLT_IFUNC);
   4090      1.1  christos 	      if (ifunc == NULL)
   4091      1.1  christos 		return FALSE;
   4092      1.1  christos 
   4093      1.1  christos 	      /* STT_GNU_IFUNC symbols must have a PLT entry;
   4094      1.1  christos 		 In a non-pie executable even when there are
   4095      1.1  christos 		 no plt calls.  */
   4096  1.1.1.4  christos 	      if (!bfd_link_pic (info)
   4097      1.1  christos 		  || is_branch_reloc (r_type))
   4098      1.1  christos 		{
   4099      1.1  christos 		  bfd_vma addend = 0;
   4100      1.1  christos 		  if (r_type == R_PPC_PLTREL24)
   4101      1.1  christos 		    {
   4102      1.1  christos 		      ppc_elf_tdata (abfd)->makes_plt_call = 1;
   4103      1.1  christos 		      if (bfd_link_pic (info))
   4104      1.1  christos 			addend = rel->r_addend;
   4105      1.1  christos 		    }
   4106      1.1  christos 		  if (!update_plt_info (abfd, ifunc, got2, addend))
   4107      1.1  christos 		    return FALSE;
   4108      1.1  christos 		}
   4109      1.1  christos 	    }
   4110      1.1  christos 	}
   4111      1.1  christos 
   4112      1.1  christos       if (!htab->is_vxworks
   4113      1.1  christos 	  && is_branch_reloc (r_type)
   4114      1.1  christos 	  && h != NULL
   4115      1.1  christos 	  && h == tga)
   4116      1.1  christos 	{
   4117      1.1  christos 	  if (rel != relocs
   4118      1.1  christos 	      && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
   4119      1.1  christos 		  || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
   4120      1.1  christos 	    /* We have a new-style __tls_get_addr call with a marker
   4121      1.1  christos 	       reloc.  */
   4122      1.1  christos 	    ;
   4123      1.1  christos 	  else
   4124      1.1  christos 	    /* Mark this section as having an old-style call.  */
   4125      1.1  christos 	    sec->has_tls_get_addr_call = 1;
   4126      1.1  christos 	}
   4127      1.1  christos 
   4128      1.1  christos       switch (r_type)
   4129      1.1  christos 	{
   4130      1.1  christos 	case R_PPC_TLSGD:
   4131      1.1  christos 	case R_PPC_TLSLD:
   4132      1.1  christos 	  /* These special tls relocs tie a call to __tls_get_addr with
   4133      1.1  christos 	     its parameter symbol.  */
   4134      1.1  christos 	  break;
   4135      1.1  christos 
   4136      1.1  christos 	case R_PPC_GOT_TLSLD16:
   4137      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   4138      1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   4139      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   4140      1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   4141      1.1  christos 	  goto dogottls;
   4142      1.1  christos 
   4143      1.1  christos 	case R_PPC_GOT_TLSGD16:
   4144      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   4145      1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   4146      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   4147  1.1.1.4  christos 	  tls_type = TLS_TLS | TLS_GD;
   4148      1.1  christos 	  goto dogottls;
   4149      1.1  christos 
   4150      1.1  christos 	case R_PPC_GOT_TPREL16:
   4151      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   4152      1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   4153      1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   4154      1.1  christos 	  if (bfd_link_pic (info))
   4155      1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4156      1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   4157      1.1  christos 	  goto dogottls;
   4158      1.1  christos 
   4159  1.1.1.5  christos 	case R_PPC_GOT_DTPREL16:
   4160      1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   4161      1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   4162      1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   4163      1.1  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   4164      1.1  christos 	dogottls:
   4165      1.1  christos 	  sec->has_tls_reloc = 1;
   4166      1.1  christos 	  /* Fall through.  */
   4167  1.1.1.5  christos 
   4168      1.1  christos 	  /* GOT16 relocations */
   4169      1.1  christos 	case R_PPC_GOT16:
   4170      1.1  christos 	case R_PPC_GOT16_LO:
   4171      1.1  christos 	case R_PPC_GOT16_HI:
   4172      1.1  christos 	case R_PPC_GOT16_HA:
   4173      1.1  christos 	  /* This symbol requires a global offset table entry.  */
   4174      1.1  christos 	  if (htab->elf.sgot == NULL)
   4175      1.1  christos 	    {
   4176      1.1  christos 	      if (htab->elf.dynobj == NULL)
   4177      1.1  christos 		htab->elf.dynobj = abfd;
   4178      1.1  christos 	      if (!ppc_elf_create_got (htab->elf.dynobj, info))
   4179      1.1  christos 		return FALSE;
   4180      1.1  christos 	    }
   4181      1.1  christos 	  if (h != NULL)
   4182      1.1  christos 	    {
   4183      1.1  christos 	      h->got.refcount += 1;
   4184      1.1  christos 	      ppc_elf_hash_entry (h)->tls_mask |= tls_type;
   4185      1.1  christos 	    }
   4186  1.1.1.4  christos 	  else
   4187      1.1  christos 	    /* This is a global offset table entry for a local symbol.  */
   4188      1.1  christos 	    if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
   4189      1.1  christos 	      return FALSE;
   4190      1.1  christos 
   4191      1.1  christos 	  /* We may also need a plt entry if the symbol turns out to be
   4192      1.1  christos 	     an ifunc.  */
   4193      1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4194      1.1  christos 	    {
   4195  1.1.1.4  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4196      1.1  christos 		return FALSE;
   4197      1.1  christos 	    }
   4198      1.1  christos 	  break;
   4199      1.1  christos 
   4200  1.1.1.2  christos 	  /* Indirect .sdata relocation.  */
   4201  1.1.1.2  christos 	case R_PPC_EMB_SDAI16:
   4202  1.1.1.2  christos 	  if (bfd_link_pic (info))
   4203      1.1  christos 	    {
   4204      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4205      1.1  christos 	      return FALSE;
   4206      1.1  christos 	    }
   4207      1.1  christos 	  htab->sdata[0].sym->ref_regular = 1;
   4208      1.1  christos 	  if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
   4209      1.1  christos 						    h, rel))
   4210      1.1  christos 	    return FALSE;
   4211      1.1  christos 	  if (h != NULL)
   4212      1.1  christos 	    {
   4213  1.1.1.4  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4214      1.1  christos 	      h->non_got_ref = TRUE;
   4215      1.1  christos 	    }
   4216      1.1  christos 	  break;
   4217      1.1  christos 
   4218  1.1.1.2  christos 	  /* Indirect .sdata2 relocation.  */
   4219  1.1.1.2  christos 	case R_PPC_EMB_SDA2I16:
   4220  1.1.1.2  christos 	  if (bfd_link_pic (info))
   4221      1.1  christos 	    {
   4222      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4223      1.1  christos 	      return FALSE;
   4224      1.1  christos 	    }
   4225      1.1  christos 	  htab->sdata[1].sym->ref_regular = 1;
   4226      1.1  christos 	  if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
   4227      1.1  christos 						    h, rel))
   4228      1.1  christos 	    return FALSE;
   4229  1.1.1.2  christos 	  if (h != NULL)
   4230  1.1.1.2  christos 	    {
   4231  1.1.1.5  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4232  1.1.1.2  christos 	      h->non_got_ref = TRUE;
   4233      1.1  christos 	    }
   4234      1.1  christos 	  break;
   4235      1.1  christos 
   4236      1.1  christos 	case R_PPC_SDAREL16:
   4237      1.1  christos 	  htab->sdata[0].sym->ref_regular = 1;
   4238      1.1  christos 	  /* Fall through.  */
   4239      1.1  christos 
   4240      1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   4241      1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   4242      1.1  christos 	case R_PPC_VLE_SDAREL_HI16A:
   4243      1.1  christos 	case R_PPC_VLE_SDAREL_HI16D:
   4244      1.1  christos 	case R_PPC_VLE_SDAREL_HA16A:
   4245      1.1  christos 	case R_PPC_VLE_SDAREL_HA16D:
   4246      1.1  christos 	  if (h != NULL)
   4247      1.1  christos 	    {
   4248      1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4249      1.1  christos 	      h->non_got_ref = TRUE;
   4250      1.1  christos 	    }
   4251      1.1  christos 	  break;
   4252      1.1  christos 
   4253      1.1  christos 	case R_PPC_VLE_REL8:
   4254      1.1  christos 	case R_PPC_VLE_REL15:
   4255      1.1  christos 	case R_PPC_VLE_REL24:
   4256      1.1  christos 	case R_PPC_VLE_LO16A:
   4257      1.1  christos 	case R_PPC_VLE_LO16D:
   4258  1.1.1.4  christos 	case R_PPC_VLE_HI16A:
   4259      1.1  christos 	case R_PPC_VLE_HI16D:
   4260      1.1  christos 	case R_PPC_VLE_HA16A:
   4261      1.1  christos 	case R_PPC_VLE_HA16D:
   4262      1.1  christos 	  break;
   4263  1.1.1.2  christos 
   4264      1.1  christos 	case R_PPC_EMB_SDA2REL:
   4265      1.1  christos 	  if (bfd_link_pic (info))
   4266      1.1  christos 	    {
   4267      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4268      1.1  christos 	      return FALSE;
   4269      1.1  christos 	    }
   4270      1.1  christos 	  htab->sdata[1].sym->ref_regular = 1;
   4271      1.1  christos 	  if (h != NULL)
   4272      1.1  christos 	    {
   4273      1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4274      1.1  christos 	      h->non_got_ref = TRUE;
   4275  1.1.1.4  christos 	    }
   4276      1.1  christos 	  break;
   4277      1.1  christos 
   4278      1.1  christos 	case R_PPC_VLE_SDA21_LO:
   4279      1.1  christos 	case R_PPC_VLE_SDA21:
   4280      1.1  christos 	case R_PPC_EMB_SDA21:
   4281      1.1  christos 	case R_PPC_EMB_RELSDA:
   4282      1.1  christos 	  if (bfd_link_pic (info))
   4283      1.1  christos 	    {
   4284      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4285      1.1  christos 	      return FALSE;
   4286      1.1  christos 	    }
   4287      1.1  christos 	  if (h != NULL)
   4288      1.1  christos 	    {
   4289      1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4290      1.1  christos 	      h->non_got_ref = TRUE;
   4291      1.1  christos 	    }
   4292  1.1.1.4  christos 	  break;
   4293      1.1  christos 
   4294      1.1  christos 	case R_PPC_EMB_NADDR32:
   4295      1.1  christos 	case R_PPC_EMB_NADDR16:
   4296      1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   4297      1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   4298      1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   4299      1.1  christos 	  if (bfd_link_pic (info))
   4300      1.1  christos 	    {
   4301      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4302      1.1  christos 	      return FALSE;
   4303      1.1  christos 	    }
   4304      1.1  christos 	  if (h != NULL)
   4305      1.1  christos 	    h->non_got_ref = TRUE;
   4306      1.1  christos 	  break;
   4307      1.1  christos 
   4308      1.1  christos 	case R_PPC_PLTREL24:
   4309      1.1  christos 	  if (h == NULL)
   4310      1.1  christos 	    break;
   4311      1.1  christos 	  /* Fall through */
   4312      1.1  christos 	case R_PPC_PLT32:
   4313  1.1.1.4  christos 	case R_PPC_PLTREL32:
   4314      1.1  christos 	case R_PPC_PLT16_LO:
   4315      1.1  christos 	case R_PPC_PLT16_HI:
   4316  1.1.1.4  christos 	case R_PPC_PLT16_HA:
   4317  1.1.1.4  christos #ifdef DEBUG
   4318  1.1.1.4  christos 	  fprintf (stderr, "Reloc requires a PLT entry\n");
   4319  1.1.1.4  christos #endif
   4320  1.1.1.4  christos 	  /* This symbol requires a procedure linkage table entry.  */
   4321  1.1.1.5  christos 	  if (h == NULL)
   4322  1.1.1.5  christos 	    {
   4323  1.1.1.4  christos 	      if (ifunc == NULL)
   4324  1.1.1.4  christos 		{
   4325  1.1.1.4  christos 		  /* It does not make sense to have a procedure linkage
   4326  1.1.1.4  christos 		     table entry for a non-ifunc local symbol.  */
   4327  1.1.1.4  christos 		  info->callbacks->einfo
   4328      1.1  christos 		    /* xgettext:c-format */
   4329      1.1  christos 		    (_("%H: %s reloc against local symbol\n"),
   4330      1.1  christos 		     abfd, sec, rel->r_offset,
   4331      1.1  christos 		     ppc_elf_howto_table[r_type]->name);
   4332      1.1  christos 		  bfd_set_error (bfd_error_bad_value);
   4333      1.1  christos 		  return FALSE;
   4334      1.1  christos 		}
   4335      1.1  christos 	    }
   4336  1.1.1.4  christos 	  else
   4337      1.1  christos 	    {
   4338      1.1  christos 	      bfd_vma addend = 0;
   4339      1.1  christos 
   4340      1.1  christos 	      if (r_type == R_PPC_PLTREL24)
   4341      1.1  christos 		{
   4342      1.1  christos 		  ppc_elf_tdata (abfd)->makes_plt_call = 1;
   4343      1.1  christos 		  if (bfd_link_pic (info))
   4344      1.1  christos 		    addend = rel->r_addend;
   4345      1.1  christos 		}
   4346      1.1  christos 	      h->needs_plt = 1;
   4347      1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
   4348      1.1  christos 		return FALSE;
   4349      1.1  christos 	    }
   4350      1.1  christos 	  break;
   4351      1.1  christos 
   4352      1.1  christos 	  /* The following relocations don't need to propagate the
   4353      1.1  christos 	     relocation if linking a shared object since they are
   4354      1.1  christos 	     section relative.  */
   4355      1.1  christos 	case R_PPC_SECTOFF:
   4356      1.1  christos 	case R_PPC_SECTOFF_LO:
   4357      1.1  christos 	case R_PPC_SECTOFF_HI:
   4358      1.1  christos 	case R_PPC_SECTOFF_HA:
   4359      1.1  christos 	case R_PPC_DTPREL16:
   4360      1.1  christos 	case R_PPC_DTPREL16_LO:
   4361      1.1  christos 	case R_PPC_DTPREL16_HI:
   4362      1.1  christos 	case R_PPC_DTPREL16_HA:
   4363  1.1.1.4  christos 	case R_PPC_TOC16:
   4364      1.1  christos 	  break;
   4365      1.1  christos 
   4366      1.1  christos 	case R_PPC_REL16:
   4367      1.1  christos 	case R_PPC_REL16_LO:
   4368      1.1  christos 	case R_PPC_REL16_HI:
   4369      1.1  christos 	case R_PPC_REL16_HA:
   4370      1.1  christos 	case R_PPC_REL16DX_HA:
   4371      1.1  christos 	  ppc_elf_tdata (abfd)->has_rel16 = 1;
   4372      1.1  christos 	  break;
   4373      1.1  christos 
   4374      1.1  christos 	  /* These are just markers.  */
   4375  1.1.1.5  christos 	case R_PPC_TLS:
   4376      1.1  christos 	case R_PPC_EMB_MRKREF:
   4377      1.1  christos 	case R_PPC_NONE:
   4378      1.1  christos 	case R_PPC_max:
   4379      1.1  christos 	case R_PPC_RELAX:
   4380      1.1  christos 	case R_PPC_RELAX_PLT:
   4381      1.1  christos 	case R_PPC_RELAX_PLTREL24:
   4382      1.1  christos 	case R_PPC_16DX_HA:
   4383      1.1  christos 	  break;
   4384      1.1  christos 
   4385      1.1  christos 	  /* These should only appear in dynamic objects.  */
   4386      1.1  christos 	case R_PPC_COPY:
   4387      1.1  christos 	case R_PPC_GLOB_DAT:
   4388      1.1  christos 	case R_PPC_JMP_SLOT:
   4389      1.1  christos 	case R_PPC_RELATIVE:
   4390      1.1  christos 	case R_PPC_IRELATIVE:
   4391      1.1  christos 	  break;
   4392      1.1  christos 
   4393      1.1  christos 	  /* These aren't handled yet.  We'll report an error later.  */
   4394      1.1  christos 	case R_PPC_ADDR30:
   4395      1.1  christos 	case R_PPC_EMB_RELSEC16:
   4396      1.1  christos 	case R_PPC_EMB_RELST_LO:
   4397      1.1  christos 	case R_PPC_EMB_RELST_HI:
   4398      1.1  christos 	case R_PPC_EMB_RELST_HA:
   4399      1.1  christos 	case R_PPC_EMB_BIT_FLD:
   4400      1.1  christos 	  break;
   4401      1.1  christos 
   4402  1.1.1.2  christos 	  /* This refers only to functions defined in the shared library.  */
   4403  1.1.1.2  christos 	case R_PPC_LOCAL24PC:
   4404  1.1.1.2  christos 	  if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
   4405  1.1.1.2  christos 	    {
   4406  1.1.1.2  christos 	      htab->plt_type = PLT_OLD;
   4407  1.1.1.2  christos 	      htab->old_bfd = abfd;
   4408      1.1  christos 	    }
   4409      1.1  christos 	  if (h != NULL && h->type == STT_GNU_IFUNC)
   4410      1.1  christos 	    {
   4411      1.1  christos 	      h->needs_plt = 1;
   4412      1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4413      1.1  christos 		return FALSE;
   4414      1.1  christos 	    }
   4415      1.1  christos 	  break;
   4416      1.1  christos 
   4417      1.1  christos 	  /* This relocation describes the C++ object vtable hierarchy.
   4418      1.1  christos 	     Reconstruct it for later use during GC.  */
   4419      1.1  christos 	case R_PPC_GNU_VTINHERIT:
   4420      1.1  christos 	  if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
   4421      1.1  christos 	    return FALSE;
   4422      1.1  christos 	  break;
   4423      1.1  christos 
   4424      1.1  christos 	  /* This relocation describes which C++ vtable entries are actually
   4425      1.1  christos 	     used.  Record for later use during GC.  */
   4426      1.1  christos 	case R_PPC_GNU_VTENTRY:
   4427      1.1  christos 	  BFD_ASSERT (h != NULL);
   4428      1.1  christos 	  if (h != NULL
   4429      1.1  christos 	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
   4430      1.1  christos 	    return FALSE;
   4431      1.1  christos 	  break;
   4432  1.1.1.4  christos 
   4433      1.1  christos 	  /* We shouldn't really be seeing these.  */
   4434      1.1  christos 	case R_PPC_TPREL32:
   4435      1.1  christos 	case R_PPC_TPREL16:
   4436      1.1  christos 	case R_PPC_TPREL16_LO:
   4437      1.1  christos 	case R_PPC_TPREL16_HI:
   4438      1.1  christos 	case R_PPC_TPREL16_HA:
   4439      1.1  christos 	  if (bfd_link_pic (info))
   4440      1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4441      1.1  christos 	  goto dodyn;
   4442      1.1  christos 
   4443      1.1  christos 	  /* Nor these.  */
   4444      1.1  christos 	case R_PPC_DTPMOD32:
   4445  1.1.1.4  christos 	case R_PPC_DTPREL32:
   4446      1.1  christos 	  goto dodyn;
   4447      1.1  christos 
   4448      1.1  christos 	case R_PPC_REL32:
   4449      1.1  christos 	  if (h == NULL
   4450      1.1  christos 	      && got2 != NULL
   4451      1.1  christos 	      && (sec->flags & SEC_CODE) != 0
   4452      1.1  christos 	      && bfd_link_pic (info)
   4453      1.1  christos 	      && htab->plt_type == PLT_UNSET)
   4454      1.1  christos 	    {
   4455      1.1  christos 	      /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
   4456      1.1  christos 		 the start of a function, which assembles to a REL32
   4457      1.1  christos 		 reference to .got2.  If we detect one of these, then
   4458      1.1  christos 		 force the old PLT layout because the linker cannot
   4459      1.1  christos 		 reliably deduce the GOT pointer value needed for
   4460      1.1  christos 		 PLT call stubs.  */
   4461      1.1  christos 	      asection *s;
   4462      1.1  christos 	      Elf_Internal_Sym *isym;
   4463      1.1  christos 
   4464      1.1  christos 	      isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4465      1.1  christos 					    abfd, r_symndx);
   4466      1.1  christos 	      if (isym == NULL)
   4467      1.1  christos 		return FALSE;
   4468      1.1  christos 
   4469      1.1  christos 	      s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4470      1.1  christos 	      if (s == got2)
   4471      1.1  christos 		{
   4472      1.1  christos 		  htab->plt_type = PLT_OLD;
   4473      1.1  christos 		  htab->old_bfd = abfd;
   4474      1.1  christos 		}
   4475      1.1  christos 	    }
   4476      1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   4477      1.1  christos 	    break;
   4478      1.1  christos 	  /* fall through */
   4479      1.1  christos 
   4480  1.1.1.4  christos 	case R_PPC_ADDR32:
   4481      1.1  christos 	case R_PPC_ADDR16:
   4482      1.1  christos 	case R_PPC_ADDR16_LO:
   4483      1.1  christos 	case R_PPC_ADDR16_HI:
   4484      1.1  christos 	case R_PPC_ADDR16_HA:
   4485      1.1  christos 	case R_PPC_UADDR32:
   4486      1.1  christos 	case R_PPC_UADDR16:
   4487      1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4488      1.1  christos 	    {
   4489      1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4490  1.1.1.3  christos 		 a function defined in a dynamic object.  */
   4491  1.1.1.3  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4492  1.1.1.3  christos 		return FALSE;
   4493  1.1.1.3  christos 
   4494      1.1  christos 	      /* We may need a copy reloc too.  */
   4495      1.1  christos 	      h->non_got_ref = 1;
   4496      1.1  christos 	      h->pointer_equality_needed = 1;
   4497      1.1  christos 	      if (r_type == R_PPC_ADDR16_HA)
   4498      1.1  christos 		ppc_elf_hash_entry (h)->has_addr16_ha = 1;
   4499      1.1  christos 	      if (r_type == R_PPC_ADDR16_LO)
   4500      1.1  christos 		ppc_elf_hash_entry (h)->has_addr16_lo = 1;
   4501      1.1  christos 	    }
   4502      1.1  christos 	  goto dodyn;
   4503      1.1  christos 
   4504      1.1  christos 	case R_PPC_REL24:
   4505      1.1  christos 	case R_PPC_REL14:
   4506      1.1  christos 	case R_PPC_REL14_BRTAKEN:
   4507      1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   4508      1.1  christos 	  if (h == NULL)
   4509      1.1  christos 	    break;
   4510      1.1  christos 	  if (h == htab->elf.hgot)
   4511      1.1  christos 	    {
   4512      1.1  christos 	      if (htab->plt_type == PLT_UNSET)
   4513      1.1  christos 		{
   4514      1.1  christos 		  htab->plt_type = PLT_OLD;
   4515      1.1  christos 		  htab->old_bfd = abfd;
   4516      1.1  christos 		}
   4517      1.1  christos 	      break;
   4518  1.1.1.4  christos 	    }
   4519      1.1  christos 	  /* fall through */
   4520      1.1  christos 
   4521      1.1  christos 	case R_PPC_ADDR24:
   4522      1.1  christos 	case R_PPC_ADDR14:
   4523      1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   4524      1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   4525      1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4526      1.1  christos 	    {
   4527      1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4528      1.1  christos 		 a function defined in a dynamic object.  */
   4529      1.1  christos 	      h->needs_plt = 1;
   4530      1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4531      1.1  christos 		return FALSE;
   4532      1.1  christos 	      break;
   4533      1.1  christos 	    }
   4534      1.1  christos 
   4535      1.1  christos 	dodyn:
   4536      1.1  christos 	  /* If we are creating a shared library, and this is a reloc
   4537      1.1  christos 	     against a global symbol, or a non PC relative reloc
   4538      1.1  christos 	     against a local symbol, then we need to copy the reloc
   4539      1.1  christos 	     into the shared library.  However, if we are linking with
   4540      1.1  christos 	     -Bsymbolic, we do not need to copy a reloc against a
   4541      1.1  christos 	     global symbol which is defined in an object we are
   4542      1.1  christos 	     including in the link (i.e., DEF_REGULAR is set).  At
   4543      1.1  christos 	     this point we have not seen all the input files, so it is
   4544      1.1  christos 	     possible that DEF_REGULAR is not set now but will be set
   4545      1.1  christos 	     later (it is never cleared).  In case of a weak definition,
   4546      1.1  christos 	     DEF_REGULAR may be cleared later by a strong definition in
   4547      1.1  christos 	     a shared library.  We account for that possibility below by
   4548      1.1  christos 	     storing information in the dyn_relocs field of the hash
   4549      1.1  christos 	     table entry.  A similar situation occurs when creating
   4550  1.1.1.4  christos 	     shared libraries and symbol visibility changes render the
   4551      1.1  christos 	     symbol local.
   4552      1.1  christos 
   4553      1.1  christos 	     If on the other hand, we are creating an executable, we
   4554      1.1  christos 	     may need to keep relocations for symbols satisfied by a
   4555      1.1  christos 	     dynamic library if we manage to avoid copy relocs for the
   4556      1.1  christos 	     symbol.  */
   4557  1.1.1.4  christos 	  if ((bfd_link_pic (info)
   4558      1.1  christos 	       && (must_be_dyn_reloc (info, r_type)
   4559      1.1  christos 		   || (h != NULL
   4560      1.1  christos 		       && (!SYMBOLIC_BIND (info, h)
   4561      1.1  christos 			   || h->root.type == bfd_link_hash_defweak
   4562      1.1  christos 			   || !h->def_regular))))
   4563      1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   4564      1.1  christos 		  && !bfd_link_pic (info)
   4565      1.1  christos 		  && h != NULL
   4566      1.1  christos 		  && (h->root.type == bfd_link_hash_defweak
   4567      1.1  christos 		      || !h->def_regular)))
   4568      1.1  christos 	    {
   4569      1.1  christos #ifdef DEBUG
   4570      1.1  christos 	      fprintf (stderr,
   4571      1.1  christos 		       "ppc_elf_check_relocs needs to "
   4572      1.1  christos 		       "create relocation for %s\n",
   4573      1.1  christos 		       (h && h->root.root.string
   4574      1.1  christos 			? h->root.root.string : "<unknown>"));
   4575      1.1  christos #endif
   4576      1.1  christos 	      if (sreloc == NULL)
   4577      1.1  christos 		{
   4578      1.1  christos 		  if (htab->elf.dynobj == NULL)
   4579      1.1  christos 		    htab->elf.dynobj = abfd;
   4580      1.1  christos 
   4581      1.1  christos 		  sreloc = _bfd_elf_make_dynamic_reloc_section
   4582      1.1  christos 		    (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
   4583      1.1  christos 
   4584      1.1  christos 		  if (sreloc == NULL)
   4585      1.1  christos 		    return FALSE;
   4586      1.1  christos 		}
   4587      1.1  christos 
   4588      1.1  christos 	      /* If this is a global symbol, we count the number of
   4589      1.1  christos 		 relocations we need for this symbol.  */
   4590      1.1  christos 	      if (h != NULL)
   4591      1.1  christos 		{
   4592      1.1  christos 		  struct elf_dyn_relocs *p;
   4593      1.1  christos 		  struct elf_dyn_relocs **rel_head;
   4594      1.1  christos 
   4595      1.1  christos 		  rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
   4596      1.1  christos 		  p = *rel_head;
   4597      1.1  christos 		  if (p == NULL || p->sec != sec)
   4598      1.1  christos 		    {
   4599      1.1  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4600      1.1  christos 		      if (p == NULL)
   4601      1.1  christos 			return FALSE;
   4602      1.1  christos 		      p->next = *rel_head;
   4603      1.1  christos 		      *rel_head = p;
   4604      1.1  christos 		      p->sec = sec;
   4605      1.1  christos 		      p->count = 0;
   4606      1.1  christos 		      p->pc_count = 0;
   4607      1.1  christos 		    }
   4608      1.1  christos 		  p->count += 1;
   4609      1.1  christos 		  if (!must_be_dyn_reloc (info, r_type))
   4610      1.1  christos 		    p->pc_count += 1;
   4611      1.1  christos 		}
   4612      1.1  christos 	      else
   4613      1.1  christos 		{
   4614      1.1  christos 		  /* Track dynamic relocs needed for local syms too.
   4615      1.1  christos 		     We really need local syms available to do this
   4616      1.1  christos 		     easily.  Oh well.  */
   4617      1.1  christos 		  struct ppc_dyn_relocs *p;
   4618      1.1  christos 		  struct ppc_dyn_relocs **rel_head;
   4619      1.1  christos 		  bfd_boolean is_ifunc;
   4620      1.1  christos 		  asection *s;
   4621      1.1  christos 		  void *vpp;
   4622      1.1  christos 		  Elf_Internal_Sym *isym;
   4623      1.1  christos 
   4624      1.1  christos 		  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4625      1.1  christos 						abfd, r_symndx);
   4626      1.1  christos 		  if (isym == NULL)
   4627      1.1  christos 		    return FALSE;
   4628      1.1  christos 
   4629      1.1  christos 		  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4630      1.1  christos 		  if (s == NULL)
   4631      1.1  christos 		    s = sec;
   4632      1.1  christos 
   4633      1.1  christos 		  vpp = &elf_section_data (s)->local_dynrel;
   4634      1.1  christos 		  rel_head = (struct ppc_dyn_relocs **) vpp;
   4635      1.1  christos 		  is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
   4636      1.1  christos 		  p = *rel_head;
   4637      1.1  christos 		  if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
   4638      1.1  christos 		    p = p->next;
   4639      1.1  christos 		  if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
   4640      1.1  christos 		    {
   4641      1.1  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4642      1.1  christos 		      if (p == NULL)
   4643      1.1  christos 			return FALSE;
   4644      1.1  christos 		      p->next = *rel_head;
   4645      1.1  christos 		      *rel_head = p;
   4646      1.1  christos 		      p->sec = sec;
   4647      1.1  christos 		      p->ifunc = is_ifunc;
   4648      1.1  christos 		      p->count = 0;
   4649      1.1  christos 		    }
   4650      1.1  christos 		  p->count += 1;
   4651      1.1  christos 		}
   4652      1.1  christos 	    }
   4653      1.1  christos 
   4654  1.1.1.5  christos 	  break;
   4655  1.1.1.5  christos 	}
   4656  1.1.1.5  christos     }
   4657  1.1.1.5  christos 
   4658      1.1  christos   return TRUE;
   4659  1.1.1.5  christos }
   4660      1.1  christos 
   4661      1.1  christos /* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
   4663      1.1  christos    and OBFD, and merge non-conflicting ones.  */
   4664      1.1  christos void
   4665      1.1  christos _bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
   4666      1.1  christos {
   4667      1.1  christos   bfd *obfd = info->output_bfd;
   4668  1.1.1.5  christos   obj_attribute *in_attr, *in_attrs;
   4669      1.1  christos   obj_attribute *out_attr, *out_attrs;
   4670      1.1  christos 
   4671  1.1.1.5  christos   in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
   4672  1.1.1.5  christos   out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
   4673  1.1.1.5  christos 
   4674  1.1.1.5  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
   4675      1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
   4676  1.1.1.5  christos 
   4677  1.1.1.5  christos   if (in_attr->i != out_attr->i)
   4678  1.1.1.5  christos     {
   4679  1.1.1.5  christos       int in_fp = in_attr->i & 3;
   4680  1.1.1.5  christos       int out_fp = out_attr->i & 3;
   4681  1.1.1.5  christos 
   4682      1.1  christos       if (in_fp == 0)
   4683  1.1.1.5  christos 	;
   4684      1.1  christos       else if (out_fp == 0)
   4685  1.1.1.5  christos 	{
   4686      1.1  christos 	  out_attr->type = 1;
   4687  1.1.1.5  christos 	  out_attr->i ^= in_fp;
   4688  1.1.1.5  christos 	}
   4689  1.1.1.5  christos       else if (out_fp != 2 && in_fp == 2)
   4690      1.1  christos 	_bfd_error_handler
   4691  1.1.1.5  christos 	  /* xgettext:c-format */
   4692  1.1.1.5  christos 	  (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
   4693  1.1.1.5  christos       else if (out_fp == 2 && in_fp != 2)
   4694  1.1.1.5  christos 	_bfd_error_handler
   4695      1.1  christos 	  /* xgettext:c-format */
   4696  1.1.1.5  christos 	  (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
   4697  1.1.1.5  christos       else if (out_fp == 1 && in_fp == 3)
   4698  1.1.1.5  christos 	_bfd_error_handler
   4699  1.1.1.5  christos 	  /* xgettext:c-format */
   4700  1.1.1.5  christos 	  (_("Warning: %B uses double-precision hard float, "
   4701  1.1.1.5  christos 	     "%B uses single-precision hard float"), obfd, ibfd);
   4702  1.1.1.5  christos       else if (out_fp == 3 && in_fp == 1)
   4703  1.1.1.5  christos 	_bfd_error_handler
   4704  1.1.1.5  christos 	  /* xgettext:c-format */
   4705  1.1.1.5  christos 	  (_("Warning: %B uses double-precision hard float, "
   4706  1.1.1.5  christos 	     "%B uses single-precision hard float"), ibfd, obfd);
   4707  1.1.1.5  christos 
   4708  1.1.1.5  christos       in_fp = in_attr->i & 0xc;
   4709  1.1.1.5  christos       out_fp = out_attr->i & 0xc;
   4710      1.1  christos       if (in_fp == 0)
   4711  1.1.1.5  christos 	;
   4712  1.1.1.5  christos       else if (out_fp == 0)
   4713  1.1.1.5  christos 	{
   4714  1.1.1.5  christos 	  out_attr->type = 1;
   4715      1.1  christos 	  out_attr->i ^= in_fp;
   4716  1.1.1.5  christos 	}
   4717  1.1.1.5  christos       else if (out_fp != 2 * 4 && in_fp == 2 * 4)
   4718  1.1.1.5  christos 	_bfd_error_handler
   4719  1.1.1.5  christos 	  /* xgettext:c-format */
   4720      1.1  christos 	  (_("Warning: %B uses 64-bit long double, "
   4721  1.1.1.5  christos 	     "%B uses 128-bit long double"), ibfd, obfd);
   4722  1.1.1.5  christos       else if (in_fp != 2 * 4 && out_fp == 2 * 4)
   4723  1.1.1.5  christos 	_bfd_error_handler
   4724  1.1.1.5  christos 	  /* xgettext:c-format */
   4725  1.1.1.5  christos 	  (_("Warning: %B uses 64-bit long double, "
   4726  1.1.1.5  christos 	     "%B uses 128-bit long double"), obfd, ibfd);
   4727  1.1.1.5  christos       else if (out_fp == 1 * 4 && in_fp == 3 * 4)
   4728  1.1.1.5  christos 	_bfd_error_handler
   4729      1.1  christos 	  /* xgettext:c-format */
   4730  1.1.1.5  christos 	  (_("Warning: %B uses IBM long double, "
   4731  1.1.1.5  christos 	     "%B uses IEEE long double"), ibfd, obfd);
   4732  1.1.1.5  christos       else if (out_fp == 3 * 4 && in_fp == 1 * 4)
   4733  1.1.1.5  christos 	_bfd_error_handler
   4734  1.1.1.5  christos 	  /* xgettext:c-format */
   4735  1.1.1.5  christos 	  (_("Warning: %B uses IBM long double, "
   4736  1.1.1.5  christos 	     "%B uses IEEE long double"), obfd, ibfd);
   4737  1.1.1.5  christos     }
   4738  1.1.1.5  christos }
   4739  1.1.1.5  christos 
   4740  1.1.1.5  christos /* Merge object attributes from IBFD into OBFD.  Warn if
   4741  1.1.1.5  christos    there are conflicting attributes.  */
   4742  1.1.1.5  christos static bfd_boolean
   4743  1.1.1.5  christos ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
   4744  1.1.1.5  christos {
   4745  1.1.1.5  christos   bfd *obfd;
   4746      1.1  christos   obj_attribute *in_attr, *in_attrs;
   4747      1.1  christos   obj_attribute *out_attr, *out_attrs;
   4748      1.1  christos 
   4749      1.1  christos   _bfd_elf_ppc_merge_fp_attributes (ibfd, info);
   4750      1.1  christos 
   4751      1.1  christos   obfd = info->output_bfd;
   4752      1.1  christos   in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
   4753  1.1.1.5  christos   out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
   4754  1.1.1.5  christos 
   4755      1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
   4756  1.1.1.5  christos      merge non-conflicting ones.  */
   4757  1.1.1.5  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
   4758  1.1.1.5  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
   4759      1.1  christos   if (in_attr->i != out_attr->i)
   4760  1.1.1.5  christos     {
   4761  1.1.1.5  christos       int in_vec = in_attr->i & 3;
   4762      1.1  christos       int out_vec = out_attr->i & 3;
   4763      1.1  christos 
   4764      1.1  christos       if (in_vec == 0)
   4765      1.1  christos 	;
   4766      1.1  christos       else if (out_vec == 0)
   4767      1.1  christos 	{
   4768  1.1.1.5  christos 	  out_attr->type = 1;
   4769      1.1  christos 	  out_attr->i = in_vec;
   4770  1.1.1.5  christos 	}
   4771  1.1.1.5  christos       /* For now, allow generic to transition to AltiVec or SPE
   4772  1.1.1.5  christos 	 without a warning.  If GCC marked files with their stack
   4773  1.1.1.5  christos 	 alignment and used don't-care markings for files which are
   4774  1.1.1.5  christos 	 not affected by the vector ABI, we could warn about this
   4775  1.1.1.5  christos 	 case too.  */
   4776      1.1  christos       else if (in_vec == 1)
   4777  1.1.1.5  christos 	;
   4778  1.1.1.5  christos       else if (out_vec == 1)
   4779  1.1.1.5  christos 	{
   4780  1.1.1.5  christos 	  out_attr->type = 1;
   4781      1.1  christos 	  out_attr->i = in_vec;
   4782  1.1.1.5  christos 	}
   4783  1.1.1.5  christos       else if (out_vec < in_vec)
   4784  1.1.1.5  christos 	_bfd_error_handler
   4785      1.1  christos 	  /* xgettext:c-format */
   4786      1.1  christos 	  (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
   4787      1.1  christos 	   obfd, ibfd);
   4788      1.1  christos       else if (out_vec > in_vec)
   4789      1.1  christos 	_bfd_error_handler
   4790      1.1  christos 	  /* xgettext:c-format */
   4791      1.1  christos 	  (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"),
   4792      1.1  christos 	   ibfd, obfd);
   4793  1.1.1.5  christos     }
   4794  1.1.1.5  christos 
   4795  1.1.1.5  christos   /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
   4796  1.1.1.5  christos      and merge non-conflicting ones.  */
   4797      1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4798  1.1.1.5  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4799  1.1.1.5  christos   if (in_attr->i != out_attr->i)
   4800  1.1.1.5  christos     {
   4801  1.1.1.5  christos       int in_struct = in_attr->i & 3;
   4802  1.1.1.5  christos       int out_struct = out_attr->i & 3;
   4803  1.1.1.5  christos 
   4804  1.1.1.5  christos       if (in_struct == 0 || in_struct == 3)
   4805  1.1.1.5  christos        ;
   4806  1.1.1.5  christos       else if (out_struct == 0)
   4807  1.1.1.5  christos 	{
   4808  1.1.1.5  christos 	  out_attr->type = 1;
   4809  1.1.1.5  christos 	  out_attr->i = in_struct;
   4810  1.1.1.5  christos 	}
   4811  1.1.1.5  christos       else if (out_struct < in_struct)
   4812  1.1.1.5  christos 	_bfd_error_handler
   4813      1.1  christos 	  /* xgettext:c-format */
   4814      1.1  christos 	  (_("Warning: %B uses r3/r4 for small structure returns, "
   4815      1.1  christos 	     "%B uses memory"), obfd, ibfd);
   4816  1.1.1.5  christos       else if (out_struct > in_struct)
   4817      1.1  christos 	_bfd_error_handler
   4818      1.1  christos 	  /* xgettext:c-format */
   4819      1.1  christos 	  (_("Warning: %B uses r3/r4 for small structure returns, "
   4820      1.1  christos 	     "%B uses memory"), ibfd, obfd);
   4821      1.1  christos     }
   4822      1.1  christos 
   4823      1.1  christos   /* Merge Tag_compatibility attributes and any common GNU ones.  */
   4824      1.1  christos   _bfd_elf_merge_object_attributes (ibfd, info);
   4825  1.1.1.5  christos 
   4826      1.1  christos   return TRUE;
   4827  1.1.1.5  christos }
   4828      1.1  christos 
   4829      1.1  christos /* Merge backend specific data from an object file to the output
   4830      1.1  christos    object file when linking.  */
   4831      1.1  christos 
   4832      1.1  christos static bfd_boolean
   4833      1.1  christos ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
   4834      1.1  christos {
   4835      1.1  christos   bfd *obfd = info->output_bfd;
   4836  1.1.1.5  christos   flagword old_flags;
   4837      1.1  christos   flagword new_flags;
   4838      1.1  christos   bfd_boolean error;
   4839  1.1.1.5  christos 
   4840      1.1  christos   if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
   4841      1.1  christos     return TRUE;
   4842      1.1  christos 
   4843      1.1  christos   /* Check if we have the same endianness.  */
   4844      1.1  christos   if (! _bfd_generic_verify_endian_match (ibfd, info))
   4845      1.1  christos     return FALSE;
   4846      1.1  christos 
   4847      1.1  christos   if (!ppc_elf_merge_obj_attributes (ibfd, info))
   4848      1.1  christos     return FALSE;
   4849      1.1  christos 
   4850      1.1  christos   new_flags = elf_elfheader (ibfd)->e_flags;
   4851      1.1  christos   old_flags = elf_elfheader (obfd)->e_flags;
   4852      1.1  christos   if (!elf_flags_init (obfd))
   4853      1.1  christos     {
   4854      1.1  christos       /* First call, no flags set.  */
   4855      1.1  christos       elf_flags_init (obfd) = TRUE;
   4856      1.1  christos       elf_elfheader (obfd)->e_flags = new_flags;
   4857      1.1  christos     }
   4858      1.1  christos 
   4859      1.1  christos   /* Compatible flags are ok.  */
   4860      1.1  christos   else if (new_flags == old_flags)
   4861      1.1  christos     ;
   4862      1.1  christos 
   4863      1.1  christos   /* Incompatible flags.  */
   4864      1.1  christos   else
   4865  1.1.1.5  christos     {
   4866      1.1  christos       /* Warn about -mrelocatable mismatch.  Allow -mrelocatable-lib
   4867      1.1  christos 	 to be linked with either.  */
   4868      1.1  christos       error = FALSE;
   4869      1.1  christos       if ((new_flags & EF_PPC_RELOCATABLE) != 0
   4870      1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
   4871      1.1  christos 	{
   4872      1.1  christos 	  error = TRUE;
   4873  1.1.1.5  christos 	  _bfd_error_handler
   4874      1.1  christos 	    (_("%B: compiled with -mrelocatable and linked with "
   4875      1.1  christos 	       "modules compiled normally"), ibfd);
   4876      1.1  christos 	}
   4877      1.1  christos       else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
   4878      1.1  christos 	       && (old_flags & EF_PPC_RELOCATABLE) != 0)
   4879      1.1  christos 	{
   4880      1.1  christos 	  error = TRUE;
   4881      1.1  christos 	  _bfd_error_handler
   4882      1.1  christos 	    (_("%B: compiled normally and linked with "
   4883      1.1  christos 	       "modules compiled with -mrelocatable"), ibfd);
   4884      1.1  christos 	}
   4885      1.1  christos 
   4886      1.1  christos       /* The output is -mrelocatable-lib iff both the input files are.  */
   4887      1.1  christos       if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
   4888      1.1  christos 	elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
   4889      1.1  christos 
   4890      1.1  christos       /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
   4891      1.1  christos 	 but each input file is either -mrelocatable or -mrelocatable-lib.  */
   4892      1.1  christos       if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
   4893      1.1  christos 	  && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
   4894      1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
   4895      1.1  christos 	elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
   4896      1.1  christos 
   4897      1.1  christos       /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
   4898      1.1  christos 	 any module uses it.  */
   4899      1.1  christos       elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
   4900  1.1.1.5  christos 
   4901  1.1.1.5  christos       new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   4902      1.1  christos       old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   4903      1.1  christos 
   4904      1.1  christos       /* Warn about any other mismatches.  */
   4905      1.1  christos       if (new_flags != old_flags)
   4906      1.1  christos 	{
   4907      1.1  christos 	  error = TRUE;
   4908      1.1  christos 	  _bfd_error_handler
   4909      1.1  christos 	    /* xgettext:c-format */
   4910      1.1  christos 	    (_("%B: uses different e_flags (0x%lx) fields "
   4911      1.1  christos 	       "than previous modules (0x%lx)"),
   4912      1.1  christos 	     ibfd, (long) new_flags, (long) old_flags);
   4913      1.1  christos 	}
   4914      1.1  christos 
   4915      1.1  christos       if (error)
   4916      1.1  christos 	{
   4917      1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   4918  1.1.1.5  christos 	  return FALSE;
   4919  1.1.1.5  christos 	}
   4920  1.1.1.5  christos     }
   4921  1.1.1.5  christos 
   4922  1.1.1.2  christos   return TRUE;
   4923  1.1.1.5  christos }
   4924  1.1.1.5  christos 
   4925      1.1  christos static void
   4926  1.1.1.5  christos ppc_elf_vle_split16 (bfd *input_bfd,
   4927      1.1  christos 		     asection *input_section,
   4928  1.1.1.5  christos 		     unsigned long offset,
   4929  1.1.1.5  christos 		     bfd_byte *loc,
   4930  1.1.1.5  christos 		     bfd_vma value,
   4931  1.1.1.5  christos 		     split16_format_type split16_format,
   4932  1.1.1.5  christos 		     bfd_boolean fixup)
   4933  1.1.1.5  christos {
   4934  1.1.1.5  christos   unsigned int insn, opcode, top5;
   4935  1.1.1.5  christos 
   4936  1.1.1.5  christos   insn = bfd_get_32 (input_bfd, loc);
   4937  1.1.1.5  christos   opcode = insn & 0xfc00f800;
   4938  1.1.1.5  christos   if (opcode == E_OR2I_INSN
   4939  1.1.1.5  christos       || opcode == E_AND2I_DOT_INSN
   4940  1.1.1.5  christos       || opcode == E_OR2IS_INSN
   4941  1.1.1.5  christos       || opcode == E_LIS_INSN
   4942  1.1.1.5  christos       || opcode == E_AND2IS_DOT_INSN)
   4943  1.1.1.5  christos     {
   4944  1.1.1.5  christos       if (split16_format != split16a_type)
   4945  1.1.1.5  christos 	{
   4946  1.1.1.5  christos 	  if (fixup)
   4947  1.1.1.5  christos 	    split16_format = split16a_type;
   4948  1.1.1.5  christos 	  else
   4949  1.1.1.5  christos 	    _bfd_error_handler
   4950  1.1.1.5  christos 	      /* xgettext:c-format */
   4951  1.1.1.5  christos 	      (_("%B(%A+0x%lx): expected 16A style relocation on 0x%08x insn"),
   4952  1.1.1.5  christos 	       input_bfd, input_section, offset, opcode);
   4953  1.1.1.5  christos 	}
   4954  1.1.1.5  christos     }
   4955  1.1.1.5  christos   else if (opcode == E_ADD2I_DOT_INSN
   4956  1.1.1.5  christos 	   || opcode == E_ADD2IS_INSN
   4957  1.1.1.5  christos 	   || opcode == E_CMP16I_INSN
   4958  1.1.1.5  christos 	   || opcode == E_MULL2I_INSN
   4959  1.1.1.5  christos 	   || opcode == E_CMPL16I_INSN
   4960  1.1.1.5  christos 	   || opcode == E_CMPH16I_INSN
   4961  1.1.1.5  christos 	   || opcode == E_CMPHL16I_INSN)
   4962  1.1.1.5  christos     {
   4963  1.1.1.5  christos       if (split16_format != split16d_type)
   4964  1.1.1.5  christos 	{
   4965  1.1.1.5  christos 	  if (fixup)
   4966  1.1.1.2  christos 	    split16_format = split16d_type;
   4967  1.1.1.5  christos 	  else
   4968  1.1.1.5  christos 	    _bfd_error_handler
   4969      1.1  christos 	      /* xgettext:c-format */
   4970  1.1.1.2  christos 	      (_("%B(%A+0x%lx): expected 16D style relocation on 0x%08x insn"),
   4971  1.1.1.5  christos 	       input_bfd, input_section, offset, opcode);
   4972      1.1  christos 	}
   4973      1.1  christos     }
   4974      1.1  christos   top5 = value & 0xf800;
   4975      1.1  christos   top5 = top5 << (split16_format == split16a_type ? 5 : 10);
   4976      1.1  christos   insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x3e007ff);
   4977      1.1  christos   insn |= top5;
   4978  1.1.1.2  christos   insn |= value & 0x7ff;
   4979      1.1  christos   bfd_put_32 (input_bfd, insn, loc);
   4980      1.1  christos }
   4981      1.1  christos 
   4982      1.1  christos /* Choose which PLT scheme to use, and set .plt flags appropriately.
   4984      1.1  christos    Returns -1 on error, 0 for old PLT, 1 for new PLT.  */
   4985      1.1  christos int
   4986      1.1  christos ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
   4987      1.1  christos 			   struct bfd_link_info *info)
   4988      1.1  christos {
   4989  1.1.1.2  christos   struct ppc_elf_link_hash_table *htab;
   4990      1.1  christos   flagword flags;
   4991  1.1.1.4  christos 
   4992      1.1  christos   htab = ppc_elf_hash_table (info);
   4993      1.1  christos 
   4994      1.1  christos   if (htab->plt_type == PLT_UNSET)
   4995      1.1  christos     {
   4996      1.1  christos       struct elf_link_hash_entry *h;
   4997      1.1  christos 
   4998      1.1  christos       if (htab->params->plt_style == PLT_OLD)
   4999      1.1  christos 	htab->plt_type = PLT_OLD;
   5000      1.1  christos       else if (bfd_link_pic (info)
   5001      1.1  christos 	       && htab->elf.dynamic_sections_created
   5002      1.1  christos 	       && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
   5003      1.1  christos 					     FALSE, FALSE, TRUE)) != NULL
   5004      1.1  christos 	       && (h->type == STT_FUNC
   5005      1.1  christos 		   || h->needs_plt)
   5006      1.1  christos 	       && h->ref_regular
   5007      1.1  christos 	       && !(SYMBOL_CALLS_LOCAL (info, h)
   5008      1.1  christos 		    || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   5009      1.1  christos 			&& h->root.type == bfd_link_hash_undefweak)))
   5010      1.1  christos 	{
   5011  1.1.1.2  christos 	  /* Profiling of shared libs (and pies) is not supported with
   5012      1.1  christos 	     secure plt, because ppc32 does profiling before a
   5013      1.1  christos 	     function prologue and a secure plt pic call stubs needs
   5014      1.1  christos 	     r30 to be set up.  */
   5015      1.1  christos 	  htab->plt_type = PLT_OLD;
   5016      1.1  christos 	}
   5017      1.1  christos       else
   5018      1.1  christos 	{
   5019  1.1.1.2  christos 	  bfd *ibfd;
   5020      1.1  christos 	  enum ppc_elf_plt_type plt_type = htab->params->plt_style;
   5021      1.1  christos 
   5022      1.1  christos 	  /* Look through the reloc flags left by ppc_elf_check_relocs.
   5023      1.1  christos 	     Use the old style bss plt if a file makes plt calls
   5024      1.1  christos 	     without using the new relocs, and if ld isn't given
   5025      1.1  christos 	     --secure-plt and we never see REL16 relocs.  */
   5026      1.1  christos 	  if (plt_type == PLT_UNSET)
   5027      1.1  christos 	    plt_type = PLT_OLD;
   5028      1.1  christos 	  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
   5029      1.1  christos 	    if (is_ppc_elf (ibfd))
   5030      1.1  christos 	      {
   5031      1.1  christos 		if (ppc_elf_tdata (ibfd)->has_rel16)
   5032      1.1  christos 		  plt_type = PLT_NEW;
   5033      1.1  christos 		else if (ppc_elf_tdata (ibfd)->makes_plt_call)
   5034  1.1.1.2  christos 		  {
   5035      1.1  christos 		    plt_type = PLT_OLD;
   5036      1.1  christos 		    htab->old_bfd = ibfd;
   5037      1.1  christos 		    break;
   5038      1.1  christos 		  }
   5039      1.1  christos 	      }
   5040      1.1  christos 	  htab->plt_type = plt_type;
   5041      1.1  christos 	}
   5042      1.1  christos     }
   5043      1.1  christos   if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
   5044      1.1  christos     {
   5045      1.1  christos       if (htab->old_bfd != NULL)
   5046      1.1  christos 	info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
   5047      1.1  christos 				htab->old_bfd);
   5048      1.1  christos       else
   5049      1.1  christos 	info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
   5050      1.1  christos     }
   5051  1.1.1.5  christos 
   5052  1.1.1.5  christos   BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
   5053      1.1  christos 
   5054      1.1  christos   if (htab->plt_type == PLT_NEW)
   5055      1.1  christos     {
   5056  1.1.1.5  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
   5057  1.1.1.5  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   5058      1.1  christos 
   5059      1.1  christos       /* The new PLT is a loaded section.  */
   5060      1.1  christos       if (htab->elf.splt != NULL
   5061      1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
   5062      1.1  christos 	return -1;
   5063      1.1  christos 
   5064      1.1  christos       /* The new GOT is not executable.  */
   5065      1.1  christos       if (htab->elf.sgot != NULL
   5066      1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
   5067      1.1  christos 	return -1;
   5068      1.1  christos     }
   5069      1.1  christos   else
   5070      1.1  christos     {
   5071      1.1  christos       /* Stop an unused .glink section from affecting .text alignment.  */
   5072      1.1  christos       if (htab->glink != NULL
   5073      1.1  christos 	  && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
   5074      1.1  christos 	return -1;
   5075      1.1  christos     }
   5076      1.1  christos   return htab->plt_type == PLT_NEW;
   5077      1.1  christos }
   5078      1.1  christos 
   5079      1.1  christos /* Return the section that should be marked against GC for a given
   5081      1.1  christos    relocation.  */
   5082      1.1  christos 
   5083      1.1  christos static asection *
   5084      1.1  christos ppc_elf_gc_mark_hook (asection *sec,
   5085      1.1  christos 		      struct bfd_link_info *info,
   5086      1.1  christos 		      Elf_Internal_Rela *rel,
   5087      1.1  christos 		      struct elf_link_hash_entry *h,
   5088      1.1  christos 		      Elf_Internal_Sym *sym)
   5089      1.1  christos {
   5090      1.1  christos   if (h != NULL)
   5091      1.1  christos     switch (ELF32_R_TYPE (rel->r_info))
   5092      1.1  christos       {
   5093      1.1  christos       case R_PPC_GNU_VTINHERIT:
   5094      1.1  christos       case R_PPC_GNU_VTENTRY:
   5095      1.1  christos 	return NULL;
   5096      1.1  christos       }
   5097      1.1  christos 
   5098      1.1  christos   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
   5099      1.1  christos }
   5100      1.1  christos 
   5101      1.1  christos /* Update the got, plt and dynamic reloc reference counts for the
   5102      1.1  christos    section being removed.  */
   5103      1.1  christos 
   5104      1.1  christos static bfd_boolean
   5105      1.1  christos ppc_elf_gc_sweep_hook (bfd *abfd,
   5106      1.1  christos 		       struct bfd_link_info *info,
   5107  1.1.1.4  christos 		       asection *sec,
   5108      1.1  christos 		       const Elf_Internal_Rela *relocs)
   5109      1.1  christos {
   5110      1.1  christos   struct ppc_elf_link_hash_table *htab;
   5111      1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   5112      1.1  christos   struct elf_link_hash_entry **sym_hashes;
   5113      1.1  christos   bfd_signed_vma *local_got_refcounts;
   5114      1.1  christos   const Elf_Internal_Rela *rel, *relend;
   5115      1.1  christos   asection *got2;
   5116      1.1  christos 
   5117      1.1  christos   if (bfd_link_relocatable (info))
   5118      1.1  christos     return TRUE;
   5119      1.1  christos 
   5120      1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   5121      1.1  christos     return TRUE;
   5122      1.1  christos 
   5123      1.1  christos   elf_section_data (sec)->local_dynrel = NULL;
   5124      1.1  christos 
   5125      1.1  christos   htab = ppc_elf_hash_table (info);
   5126      1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   5127      1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   5128      1.1  christos   local_got_refcounts = elf_local_got_refcounts (abfd);
   5129      1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   5130      1.1  christos 
   5131      1.1  christos   relend = relocs + sec->reloc_count;
   5132      1.1  christos   for (rel = relocs; rel < relend; rel++)
   5133      1.1  christos     {
   5134      1.1  christos       unsigned long r_symndx;
   5135      1.1  christos       enum elf_ppc_reloc_type r_type;
   5136      1.1  christos       struct elf_link_hash_entry *h = NULL;
   5137      1.1  christos 
   5138      1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   5139      1.1  christos       if (r_symndx >= symtab_hdr->sh_info)
   5140      1.1  christos 	{
   5141      1.1  christos 	  struct elf_dyn_relocs **pp, *p;
   5142      1.1  christos 	  struct ppc_elf_link_hash_entry *eh;
   5143      1.1  christos 
   5144      1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5145      1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   5146      1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   5147      1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5148      1.1  christos 	  eh = (struct ppc_elf_link_hash_entry *) h;
   5149      1.1  christos 
   5150      1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
   5151      1.1  christos 	    if (p->sec == sec)
   5152      1.1  christos 	      {
   5153  1.1.1.4  christos 		/* Everything must go for SEC.  */
   5154      1.1  christos 		*pp = p->next;
   5155      1.1  christos 		break;
   5156      1.1  christos 	      }
   5157      1.1  christos 	}
   5158      1.1  christos 
   5159      1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   5160      1.1  christos       if (!htab->is_vxworks
   5161      1.1  christos 	  && h == NULL
   5162      1.1  christos 	  && local_got_refcounts != NULL
   5163      1.1  christos 	  && (!bfd_link_pic (info)
   5164      1.1  christos 	      || is_branch_reloc (r_type)))
   5165      1.1  christos 	{
   5166  1.1.1.4  christos 	  struct plt_entry **local_plt = (struct plt_entry **)
   5167      1.1  christos 	    (local_got_refcounts + symtab_hdr->sh_info);
   5168      1.1  christos 	  char *local_got_tls_masks = (char *)
   5169      1.1  christos 	    (local_plt + symtab_hdr->sh_info);
   5170      1.1  christos 	  if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
   5171      1.1  christos 	    {
   5172      1.1  christos 	      struct plt_entry **ifunc = local_plt + r_symndx;
   5173      1.1  christos 	      bfd_vma addend = 0;
   5174      1.1  christos 	      struct plt_entry *ent;
   5175      1.1  christos 
   5176      1.1  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
   5177      1.1  christos 		addend = rel->r_addend;
   5178      1.1  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   5179      1.1  christos 	      if (ent->plt.refcount > 0)
   5180      1.1  christos 		ent->plt.refcount -= 1;
   5181      1.1  christos 	      continue;
   5182      1.1  christos 	    }
   5183      1.1  christos 	}
   5184      1.1  christos 
   5185      1.1  christos       switch (r_type)
   5186      1.1  christos 	{
   5187      1.1  christos 	case R_PPC_GOT_TLSLD16:
   5188      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   5189      1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   5190      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   5191      1.1  christos 	case R_PPC_GOT_TLSGD16:
   5192      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   5193      1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   5194      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   5195      1.1  christos 	case R_PPC_GOT_TPREL16:
   5196      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   5197      1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   5198      1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   5199      1.1  christos 	case R_PPC_GOT_DTPREL16:
   5200      1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   5201  1.1.1.4  christos 	case R_PPC_GOT_DTPREL16_HI:
   5202      1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   5203      1.1  christos 	case R_PPC_GOT16:
   5204      1.1  christos 	case R_PPC_GOT16_LO:
   5205      1.1  christos 	case R_PPC_GOT16_HI:
   5206      1.1  christos 	case R_PPC_GOT16_HA:
   5207      1.1  christos 	  if (h != NULL)
   5208      1.1  christos 	    {
   5209      1.1  christos 	      if (h->got.refcount > 0)
   5210      1.1  christos 		h->got.refcount--;
   5211      1.1  christos 	      if (!bfd_link_pic (info))
   5212      1.1  christos 		{
   5213      1.1  christos 		  struct plt_entry *ent;
   5214      1.1  christos 
   5215      1.1  christos 		  ent = find_plt_ent (&h->plt.plist, NULL, 0);
   5216      1.1  christos 		  if (ent != NULL && ent->plt.refcount > 0)
   5217      1.1  christos 		    ent->plt.refcount -= 1;
   5218      1.1  christos 		}
   5219      1.1  christos 	    }
   5220      1.1  christos 	  else if (local_got_refcounts != NULL)
   5221      1.1  christos 	    {
   5222      1.1  christos 	      if (local_got_refcounts[r_symndx] > 0)
   5223      1.1  christos 		local_got_refcounts[r_symndx]--;
   5224  1.1.1.5  christos 	    }
   5225      1.1  christos 	  break;
   5226      1.1  christos 
   5227      1.1  christos 	case R_PPC_REL24:
   5228      1.1  christos 	case R_PPC_REL14:
   5229      1.1  christos 	case R_PPC_REL14_BRTAKEN:
   5230      1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   5231      1.1  christos 	case R_PPC_REL32:
   5232      1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   5233      1.1  christos 	    break;
   5234      1.1  christos 	  /* Fall through.  */
   5235      1.1  christos 
   5236      1.1  christos 	case R_PPC_ADDR32:
   5237  1.1.1.4  christos 	case R_PPC_ADDR24:
   5238      1.1  christos 	case R_PPC_ADDR16:
   5239  1.1.1.5  christos 	case R_PPC_ADDR16_LO:
   5240      1.1  christos 	case R_PPC_ADDR16_HI:
   5241      1.1  christos 	case R_PPC_ADDR16_HA:
   5242      1.1  christos 	case R_PPC_ADDR14:
   5243      1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   5244      1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   5245      1.1  christos 	case R_PPC_UADDR32:
   5246      1.1  christos 	case R_PPC_UADDR16:
   5247      1.1  christos 	  if (bfd_link_pic (info))
   5248      1.1  christos 	    break;
   5249      1.1  christos 	  /* Fall through.  */
   5250      1.1  christos 
   5251      1.1  christos 	case R_PPC_PLT32:
   5252  1.1.1.4  christos 	case R_PPC_PLTREL24:
   5253      1.1  christos 	case R_PPC_PLTREL32:
   5254      1.1  christos 	case R_PPC_PLT16_LO:
   5255      1.1  christos 	case R_PPC_PLT16_HI:
   5256      1.1  christos 	case R_PPC_PLT16_HA:
   5257      1.1  christos 	  if (h != NULL)
   5258      1.1  christos 	    {
   5259      1.1  christos 	      bfd_vma addend = 0;
   5260      1.1  christos 	      struct plt_entry *ent;
   5261      1.1  christos 
   5262      1.1  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
   5263      1.1  christos 		addend = rel->r_addend;
   5264      1.1  christos 	      ent = find_plt_ent (&h->plt.plist, got2, addend);
   5265      1.1  christos 	      if (ent != NULL && ent->plt.refcount > 0)
   5266      1.1  christos 		ent->plt.refcount -= 1;
   5267      1.1  christos 	    }
   5268      1.1  christos 	  break;
   5269      1.1  christos 
   5270      1.1  christos 	default:
   5271  1.1.1.2  christos 	  break;
   5272      1.1  christos 	}
   5273      1.1  christos     }
   5274      1.1  christos   return TRUE;
   5275      1.1  christos }
   5276      1.1  christos 
   5277      1.1  christos /* Set plt output section type, htab->tls_get_addr, and call the
   5279  1.1.1.3  christos    generic ELF tls_setup function.  */
   5280  1.1.1.3  christos 
   5281  1.1.1.2  christos asection *
   5282      1.1  christos ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
   5283      1.1  christos {
   5284      1.1  christos   struct ppc_elf_link_hash_table *htab;
   5285      1.1  christos 
   5286      1.1  christos   htab = ppc_elf_hash_table (info);
   5287      1.1  christos   htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   5288      1.1  christos 					     FALSE, FALSE, TRUE);
   5289      1.1  christos   if (htab->plt_type != PLT_NEW)
   5290      1.1  christos     htab->params->no_tls_get_addr_opt = TRUE;
   5291      1.1  christos 
   5292      1.1  christos   if (!htab->params->no_tls_get_addr_opt)
   5293      1.1  christos     {
   5294      1.1  christos       struct elf_link_hash_entry *opt, *tga;
   5295      1.1  christos       opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
   5296      1.1  christos 				  FALSE, FALSE, TRUE);
   5297      1.1  christos       if (opt != NULL
   5298      1.1  christos 	  && (opt->root.type == bfd_link_hash_defined
   5299      1.1  christos 	      || opt->root.type == bfd_link_hash_defweak))
   5300      1.1  christos 	{
   5301      1.1  christos 	  /* If glibc supports an optimized __tls_get_addr call stub,
   5302      1.1  christos 	     signalled by the presence of __tls_get_addr_opt, and we'll
   5303      1.1  christos 	     be calling __tls_get_addr via a plt call stub, then
   5304      1.1  christos 	     make __tls_get_addr point to __tls_get_addr_opt.  */
   5305      1.1  christos 	  tga = htab->tls_get_addr;
   5306      1.1  christos 	  if (htab->elf.dynamic_sections_created
   5307      1.1  christos 	      && tga != NULL
   5308      1.1  christos 	      && (tga->type == STT_FUNC
   5309      1.1  christos 		  || tga->needs_plt)
   5310      1.1  christos 	      && !(SYMBOL_CALLS_LOCAL (info, tga)
   5311      1.1  christos 		   || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
   5312  1.1.1.5  christos 		       && tga->root.type == bfd_link_hash_undefweak)))
   5313      1.1  christos 	    {
   5314      1.1  christos 	      struct plt_entry *ent;
   5315      1.1  christos 	      for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
   5316      1.1  christos 		if (ent->plt.refcount > 0)
   5317      1.1  christos 		  break;
   5318      1.1  christos 	      if (ent != NULL)
   5319      1.1  christos 		{
   5320      1.1  christos 		  tga->root.type = bfd_link_hash_indirect;
   5321      1.1  christos 		  tga->root.u.i.link = &opt->root;
   5322      1.1  christos 		  ppc_elf_copy_indirect_symbol (info, opt, tga);
   5323      1.1  christos 		  opt->mark = 1;
   5324      1.1  christos 		  if (opt->dynindx != -1)
   5325      1.1  christos 		    {
   5326      1.1  christos 		      /* Use __tls_get_addr_opt in dynamic relocations.  */
   5327  1.1.1.2  christos 		      opt->dynindx = -1;
   5328      1.1  christos 		      _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   5329      1.1  christos 					      opt->dynstr_index);
   5330  1.1.1.5  christos 		      if (!bfd_elf_link_record_dynamic_symbol (info, opt))
   5331  1.1.1.5  christos 			return FALSE;
   5332      1.1  christos 		    }
   5333  1.1.1.5  christos 		  htab->tls_get_addr = opt;
   5334  1.1.1.5  christos 		}
   5335      1.1  christos 	    }
   5336      1.1  christos 	}
   5337      1.1  christos       else
   5338      1.1  christos 	htab->params->no_tls_get_addr_opt = TRUE;
   5339      1.1  christos     }
   5340      1.1  christos   if (htab->plt_type == PLT_NEW
   5341      1.1  christos       && htab->elf.splt != NULL
   5342      1.1  christos       && htab->elf.splt->output_section != NULL)
   5343      1.1  christos     {
   5344      1.1  christos       elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
   5345      1.1  christos       elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
   5346      1.1  christos     }
   5347      1.1  christos 
   5348      1.1  christos   return _bfd_elf_tls_setup (obfd, info);
   5349      1.1  christos }
   5350      1.1  christos 
   5351      1.1  christos /* Return TRUE iff REL is a branch reloc with a global symbol matching
   5352      1.1  christos    HASH.  */
   5353      1.1  christos 
   5354      1.1  christos static bfd_boolean
   5355      1.1  christos branch_reloc_hash_match (const bfd *ibfd,
   5356      1.1  christos 			 const Elf_Internal_Rela *rel,
   5357      1.1  christos 			 const struct elf_link_hash_entry *hash)
   5358      1.1  christos {
   5359      1.1  christos   Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5360      1.1  christos   enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
   5361      1.1  christos   unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
   5362      1.1  christos 
   5363      1.1  christos   if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
   5364      1.1  christos     {
   5365      1.1  christos       struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
   5366      1.1  christos       struct elf_link_hash_entry *h;
   5367      1.1  christos 
   5368      1.1  christos       h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5369      1.1  christos       while (h->root.type == bfd_link_hash_indirect
   5370      1.1  christos 	     || h->root.type == bfd_link_hash_warning)
   5371      1.1  christos 	h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5372      1.1  christos       if (h == hash)
   5373      1.1  christos 	return TRUE;
   5374      1.1  christos     }
   5375      1.1  christos   return FALSE;
   5376      1.1  christos }
   5377      1.1  christos 
   5378      1.1  christos /* Run through all the TLS relocs looking for optimization
   5379  1.1.1.4  christos    opportunities.  */
   5380      1.1  christos 
   5381      1.1  christos bfd_boolean
   5382      1.1  christos ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
   5383      1.1  christos 		      struct bfd_link_info *info)
   5384      1.1  christos {
   5385      1.1  christos   bfd *ibfd;
   5386      1.1  christos   asection *sec;
   5387      1.1  christos   struct ppc_elf_link_hash_table *htab;
   5388      1.1  christos   int pass;
   5389      1.1  christos 
   5390      1.1  christos   if (!bfd_link_executable (info))
   5391      1.1  christos     return TRUE;
   5392      1.1  christos 
   5393  1.1.1.2  christos   htab = ppc_elf_hash_table (info);
   5394      1.1  christos   if (htab == NULL)
   5395      1.1  christos     return FALSE;
   5396      1.1  christos 
   5397      1.1  christos   /* Make two passes through the relocs.  First time check that tls
   5398      1.1  christos      relocs involved in setting up a tls_get_addr call are indeed
   5399      1.1  christos      followed by such a call.  If they are not, don't do any tls
   5400      1.1  christos      optimization.  On the second pass twiddle tls_mask flags to
   5401      1.1  christos      notify relocate_section that optimization can be done, and
   5402      1.1  christos      adjust got and plt refcounts.  */
   5403      1.1  christos   for (pass = 0; pass < 2; ++pass)
   5404      1.1  christos     for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   5405      1.1  christos       {
   5406      1.1  christos 	Elf_Internal_Sym *locsyms = NULL;
   5407      1.1  christos 	Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5408      1.1  christos 	asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
   5409      1.1  christos 
   5410      1.1  christos 	for (sec = ibfd->sections; sec != NULL; sec = sec->next)
   5411      1.1  christos 	  if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
   5412      1.1  christos 	    {
   5413      1.1  christos 	      Elf_Internal_Rela *relstart, *rel, *relend;
   5414      1.1  christos 	      int expecting_tls_get_addr = 0;
   5415      1.1  christos 
   5416      1.1  christos 	      /* Read the relocations.  */
   5417      1.1  christos 	      relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
   5418      1.1  christos 						    info->keep_memory);
   5419      1.1  christos 	      if (relstart == NULL)
   5420      1.1  christos 		return FALSE;
   5421      1.1  christos 
   5422      1.1  christos 	      relend = relstart + sec->reloc_count;
   5423      1.1  christos 	      for (rel = relstart; rel < relend; rel++)
   5424      1.1  christos 		{
   5425      1.1  christos 		  enum elf_ppc_reloc_type r_type;
   5426      1.1  christos 		  unsigned long r_symndx;
   5427      1.1  christos 		  struct elf_link_hash_entry *h = NULL;
   5428      1.1  christos 		  char *tls_mask;
   5429      1.1  christos 		  char tls_set, tls_clear;
   5430      1.1  christos 		  bfd_boolean is_local;
   5431      1.1  christos 		  bfd_signed_vma *got_count;
   5432      1.1  christos 
   5433      1.1  christos 		  r_symndx = ELF32_R_SYM (rel->r_info);
   5434      1.1  christos 		  if (r_symndx >= symtab_hdr->sh_info)
   5435      1.1  christos 		    {
   5436      1.1  christos 		      struct elf_link_hash_entry **sym_hashes;
   5437      1.1  christos 
   5438      1.1  christos 		      sym_hashes = elf_sym_hashes (ibfd);
   5439      1.1  christos 		      h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5440      1.1  christos 		      while (h->root.type == bfd_link_hash_indirect
   5441      1.1  christos 			     || h->root.type == bfd_link_hash_warning)
   5442      1.1  christos 			h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5443      1.1  christos 		    }
   5444      1.1  christos 
   5445      1.1  christos 		  is_local = FALSE;
   5446      1.1  christos 		  if (h == NULL
   5447      1.1  christos 		      || !h->def_dynamic)
   5448      1.1  christos 		    is_local = TRUE;
   5449      1.1  christos 
   5450      1.1  christos 		  r_type = ELF32_R_TYPE (rel->r_info);
   5451      1.1  christos 		  /* If this section has old-style __tls_get_addr calls
   5452      1.1  christos 		     without marker relocs, then check that each
   5453      1.1  christos 		     __tls_get_addr call reloc is preceded by a reloc
   5454      1.1  christos 		     that conceivably belongs to the __tls_get_addr arg
   5455      1.1  christos 		     setup insn.  If we don't find matching arg setup
   5456      1.1  christos 		     relocs, don't do any tls optimization.  */
   5457      1.1  christos 		  if (pass == 0
   5458      1.1  christos 		      && sec->has_tls_get_addr_call
   5459      1.1  christos 		      && h != NULL
   5460      1.1  christos 		      && h == htab->tls_get_addr
   5461      1.1  christos 		      && !expecting_tls_get_addr
   5462      1.1  christos 		      && is_branch_reloc (r_type))
   5463      1.1  christos 		    {
   5464      1.1  christos 		      info->callbacks->minfo ("%H __tls_get_addr lost arg, "
   5465      1.1  christos 					      "TLS optimization disabled\n",
   5466      1.1  christos 					      ibfd, sec, rel->r_offset);
   5467  1.1.1.5  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5468      1.1  christos 			free (relstart);
   5469      1.1  christos 		      return TRUE;
   5470      1.1  christos 		    }
   5471      1.1  christos 
   5472      1.1  christos 		  expecting_tls_get_addr = 0;
   5473      1.1  christos 		  switch (r_type)
   5474      1.1  christos 		    {
   5475      1.1  christos 		    case R_PPC_GOT_TLSLD16:
   5476      1.1  christos 		    case R_PPC_GOT_TLSLD16_LO:
   5477      1.1  christos 		      expecting_tls_get_addr = 1;
   5478      1.1  christos 		      /* Fall through.  */
   5479      1.1  christos 
   5480      1.1  christos 		    case R_PPC_GOT_TLSLD16_HI:
   5481      1.1  christos 		    case R_PPC_GOT_TLSLD16_HA:
   5482      1.1  christos 		      /* These relocs should never be against a symbol
   5483      1.1  christos 			 defined in a shared lib.  Leave them alone if
   5484      1.1  christos 			 that turns out to be the case.  */
   5485  1.1.1.5  christos 		      if (!is_local)
   5486      1.1  christos 			continue;
   5487      1.1  christos 
   5488      1.1  christos 		      /* LD -> LE */
   5489      1.1  christos 		      tls_set = 0;
   5490      1.1  christos 		      tls_clear = TLS_LD;
   5491      1.1  christos 		      break;
   5492      1.1  christos 
   5493      1.1  christos 		    case R_PPC_GOT_TLSGD16:
   5494      1.1  christos 		    case R_PPC_GOT_TLSGD16_LO:
   5495      1.1  christos 		      expecting_tls_get_addr = 1;
   5496      1.1  christos 		      /* Fall through.  */
   5497      1.1  christos 
   5498      1.1  christos 		    case R_PPC_GOT_TLSGD16_HI:
   5499      1.1  christos 		    case R_PPC_GOT_TLSGD16_HA:
   5500      1.1  christos 		      if (is_local)
   5501      1.1  christos 			/* GD -> LE */
   5502      1.1  christos 			tls_set = 0;
   5503      1.1  christos 		      else
   5504      1.1  christos 			/* GD -> IE */
   5505      1.1  christos 			tls_set = TLS_TLS | TLS_TPRELGD;
   5506      1.1  christos 		      tls_clear = TLS_GD;
   5507      1.1  christos 		      break;
   5508      1.1  christos 
   5509      1.1  christos 		    case R_PPC_GOT_TPREL16:
   5510      1.1  christos 		    case R_PPC_GOT_TPREL16_LO:
   5511      1.1  christos 		    case R_PPC_GOT_TPREL16_HI:
   5512      1.1  christos 		    case R_PPC_GOT_TPREL16_HA:
   5513      1.1  christos 		      if (is_local)
   5514      1.1  christos 			{
   5515      1.1  christos 			  /* IE -> LE */
   5516      1.1  christos 			  tls_set = 0;
   5517      1.1  christos 			  tls_clear = TLS_TPREL;
   5518      1.1  christos 			  break;
   5519      1.1  christos 			}
   5520      1.1  christos 		      else
   5521      1.1  christos 			continue;
   5522      1.1  christos 
   5523      1.1  christos 		    case R_PPC_TLSGD:
   5524      1.1  christos 		    case R_PPC_TLSLD:
   5525      1.1  christos 		      expecting_tls_get_addr = 2;
   5526      1.1  christos 		      tls_set = 0;
   5527      1.1  christos 		      tls_clear = 0;
   5528      1.1  christos 		      break;
   5529      1.1  christos 
   5530      1.1  christos 		    default:
   5531      1.1  christos 		      continue;
   5532      1.1  christos 		    }
   5533      1.1  christos 
   5534      1.1  christos 		  if (pass == 0)
   5535      1.1  christos 		    {
   5536      1.1  christos 		      if (!expecting_tls_get_addr
   5537      1.1  christos 			  || (expecting_tls_get_addr == 1
   5538      1.1  christos 			      && !sec->has_tls_get_addr_call))
   5539      1.1  christos 			continue;
   5540      1.1  christos 
   5541      1.1  christos 		      if (rel + 1 < relend
   5542      1.1  christos 			  && branch_reloc_hash_match (ibfd, rel + 1,
   5543      1.1  christos 						      htab->tls_get_addr))
   5544      1.1  christos 			continue;
   5545      1.1  christos 
   5546      1.1  christos 		      /* Uh oh, we didn't find the expected call.  We
   5547      1.1  christos 			 could just mark this symbol to exclude it
   5548      1.1  christos 			 from tls optimization but it's safer to skip
   5549      1.1  christos 			 the entire optimization.  */
   5550      1.1  christos 		      info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
   5551      1.1  christos 						"TLS optimization disabled\n"),
   5552  1.1.1.4  christos 					      ibfd, sec, rel->r_offset);
   5553      1.1  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5554      1.1  christos 			free (relstart);
   5555      1.1  christos 		      return TRUE;
   5556      1.1  christos 		    }
   5557      1.1  christos 
   5558      1.1  christos 		  if (expecting_tls_get_addr)
   5559      1.1  christos 		    {
   5560      1.1  christos 		      struct plt_entry *ent;
   5561      1.1  christos 		      bfd_vma addend = 0;
   5562      1.1  christos 
   5563      1.1  christos 		      if (bfd_link_pic (info)
   5564      1.1  christos 			  && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
   5565      1.1  christos 			addend = rel[1].r_addend;
   5566      1.1  christos 		      ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
   5567      1.1  christos 					  got2, addend);
   5568      1.1  christos 		      if (ent != NULL && ent->plt.refcount > 0)
   5569      1.1  christos 			ent->plt.refcount -= 1;
   5570      1.1  christos 
   5571      1.1  christos 		      if (expecting_tls_get_addr == 2)
   5572      1.1  christos 			continue;
   5573      1.1  christos 		    }
   5574      1.1  christos 
   5575      1.1  christos 		  if (h != NULL)
   5576      1.1  christos 		    {
   5577      1.1  christos 		      tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
   5578      1.1  christos 		      got_count = &h->got.refcount;
   5579      1.1  christos 		    }
   5580      1.1  christos 		  else
   5581      1.1  christos 		    {
   5582      1.1  christos 		      bfd_signed_vma *lgot_refs;
   5583      1.1  christos 		      struct plt_entry **local_plt;
   5584      1.1  christos 		      char *lgot_masks;
   5585      1.1  christos 
   5586      1.1  christos 		      if (locsyms == NULL)
   5587      1.1  christos 			{
   5588      1.1  christos 			  locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
   5589      1.1  christos 			  if (locsyms == NULL)
   5590      1.1  christos 			    locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
   5591      1.1  christos 							    symtab_hdr->sh_info,
   5592      1.1  christos 							    0, NULL, NULL, NULL);
   5593      1.1  christos 			  if (locsyms == NULL)
   5594      1.1  christos 			    {
   5595      1.1  christos 			      if (elf_section_data (sec)->relocs != relstart)
   5596      1.1  christos 				free (relstart);
   5597      1.1  christos 			      return FALSE;
   5598      1.1  christos 			    }
   5599      1.1  christos 			}
   5600      1.1  christos 		      lgot_refs = elf_local_got_refcounts (ibfd);
   5601      1.1  christos 		      if (lgot_refs == NULL)
   5602      1.1  christos 			abort ();
   5603      1.1  christos 		      local_plt = (struct plt_entry **)
   5604      1.1  christos 			(lgot_refs + symtab_hdr->sh_info);
   5605      1.1  christos 		      lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   5606      1.1  christos 		      tls_mask = &lgot_masks[r_symndx];
   5607      1.1  christos 		      got_count = &lgot_refs[r_symndx];
   5608      1.1  christos 		    }
   5609      1.1  christos 
   5610      1.1  christos 		  if (tls_set == 0)
   5611      1.1  christos 		    {
   5612      1.1  christos 		      /* We managed to get rid of a got entry.  */
   5613      1.1  christos 		      if (*got_count > 0)
   5614      1.1  christos 			*got_count -= 1;
   5615      1.1  christos 		    }
   5616      1.1  christos 
   5617      1.1  christos 		  *tls_mask |= tls_set;
   5618      1.1  christos 		  *tls_mask &= ~tls_clear;
   5619      1.1  christos 		}
   5620      1.1  christos 
   5621      1.1  christos 	      if (elf_section_data (sec)->relocs != relstart)
   5622      1.1  christos 		free (relstart);
   5623      1.1  christos 	    }
   5624      1.1  christos 
   5625      1.1  christos 	if (locsyms != NULL
   5626      1.1  christos 	    && (symtab_hdr->contents != (unsigned char *) locsyms))
   5627      1.1  christos 	  {
   5628      1.1  christos 	    if (!info->keep_memory)
   5629      1.1  christos 	      free (locsyms);
   5630      1.1  christos 	    else
   5631      1.1  christos 	      symtab_hdr->contents = (unsigned char *) locsyms;
   5632      1.1  christos 	  }
   5633      1.1  christos       }
   5634      1.1  christos   return TRUE;
   5635      1.1  christos }
   5636      1.1  christos 
   5637      1.1  christos /* Return true if we have dynamic relocs that apply to read-only sections.  */
   5639      1.1  christos 
   5640      1.1  christos static bfd_boolean
   5641      1.1  christos readonly_dynrelocs (struct elf_link_hash_entry *h)
   5642      1.1  christos {
   5643      1.1  christos   struct elf_dyn_relocs *p;
   5644      1.1  christos 
   5645      1.1  christos   for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
   5646      1.1  christos     {
   5647      1.1  christos       asection *s = p->sec->output_section;
   5648      1.1  christos 
   5649      1.1  christos       if (s != NULL
   5650      1.1  christos 	  && ((s->flags & (SEC_READONLY | SEC_ALLOC))
   5651      1.1  christos 	      == (SEC_READONLY | SEC_ALLOC)))
   5652      1.1  christos 	return TRUE;
   5653      1.1  christos     }
   5654      1.1  christos   return FALSE;
   5655      1.1  christos }
   5656      1.1  christos 
   5657      1.1  christos /* Adjust a symbol defined by a dynamic object and referenced by a
   5658      1.1  christos    regular object.  The current definition is in some section of the
   5659      1.1  christos    dynamic object, but we're not including those sections.  We have to
   5660      1.1  christos    change the definition to something the rest of the link can
   5661      1.1  christos    understand.  */
   5662      1.1  christos 
   5663      1.1  christos static bfd_boolean
   5664      1.1  christos ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
   5665      1.1  christos 			       struct elf_link_hash_entry *h)
   5666      1.1  christos {
   5667      1.1  christos   struct ppc_elf_link_hash_table *htab;
   5668      1.1  christos   asection *s;
   5669      1.1  christos 
   5670      1.1  christos #ifdef DEBUG
   5671      1.1  christos   fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
   5672      1.1  christos 	   h->root.root.string);
   5673      1.1  christos #endif
   5674      1.1  christos 
   5675      1.1  christos   /* Make sure we know what is going on here.  */
   5676      1.1  christos   htab = ppc_elf_hash_table (info);
   5677      1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL
   5678      1.1  christos 	      && (h->needs_plt
   5679      1.1  christos 		  || h->type == STT_GNU_IFUNC
   5680      1.1  christos 		  || h->u.weakdef != NULL
   5681      1.1  christos 		  || (h->def_dynamic
   5682      1.1  christos 		      && h->ref_regular
   5683      1.1  christos 		      && !h->def_regular)));
   5684      1.1  christos 
   5685      1.1  christos   /* Deal with function syms.  */
   5686      1.1  christos   if (h->type == STT_FUNC
   5687      1.1  christos       || h->type == STT_GNU_IFUNC
   5688      1.1  christos       || h->needs_plt)
   5689      1.1  christos     {
   5690      1.1  christos       /* Clear procedure linkage table information for any symbol that
   5691      1.1  christos 	 won't need a .plt entry.  */
   5692      1.1  christos       struct plt_entry *ent;
   5693      1.1  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   5694      1.1  christos 	if (ent->plt.refcount > 0)
   5695      1.1  christos 	  break;
   5696      1.1  christos       if (ent == NULL
   5697      1.1  christos 	  || (h->type != STT_GNU_IFUNC
   5698      1.1  christos 	      && (SYMBOL_CALLS_LOCAL (info, h)
   5699      1.1  christos 		  || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   5700      1.1  christos 		      && h->root.type == bfd_link_hash_undefweak))))
   5701      1.1  christos 	{
   5702  1.1.1.2  christos 	  /* A PLT entry is not required/allowed when:
   5703      1.1  christos 
   5704      1.1  christos 	     1. We are not using ld.so; because then the PLT entry
   5705      1.1  christos 	     can't be set up, so we can't use one.  In this case,
   5706  1.1.1.2  christos 	     ppc_elf_adjust_dynamic_symbol won't even be called.
   5707  1.1.1.2  christos 
   5708  1.1.1.2  christos 	     2. GC has rendered the entry unused.
   5709  1.1.1.5  christos 
   5710  1.1.1.5  christos 	     3. We know for certain that a call to this symbol
   5711  1.1.1.5  christos 	     will go to this object, or will remain undefined.  */
   5712  1.1.1.5  christos 	  h->plt.plist = NULL;
   5713  1.1.1.5  christos 	  h->needs_plt = 0;
   5714  1.1.1.5  christos 	  h->pointer_equality_needed = 0;
   5715  1.1.1.5  christos 	}
   5716  1.1.1.5  christos       else
   5717  1.1.1.2  christos 	{
   5718  1.1.1.2  christos 	  /* Taking a function's address in a read/write section
   5719  1.1.1.2  christos 	     doesn't require us to define the function symbol in the
   5720  1.1.1.2  christos 	     executable on a plt call stub.  A dynamic reloc can
   5721  1.1.1.2  christos 	     be used instead, giving better runtime performance.
   5722  1.1.1.5  christos 	     (Calls via that function pointer don't need to bounce
   5723  1.1.1.5  christos 	     through the plt call stub.)  Similarly, use a dynamic
   5724  1.1.1.5  christos 	     reloc for a weak reference when possible, allowing the
   5725  1.1.1.2  christos 	     resolution of the symbol to be set at load time rather
   5726  1.1.1.2  christos 	     than link time.  */
   5727      1.1  christos 	  if ((h->pointer_equality_needed
   5728  1.1.1.3  christos 	       || (!h->ref_regular_nonweak && h->non_got_ref))
   5729      1.1  christos 	      && !htab->is_vxworks
   5730      1.1  christos 	      && !ppc_elf_hash_entry (h)->has_sda_refs
   5731      1.1  christos 	      && !readonly_dynrelocs (h))
   5732      1.1  christos 	    {
   5733      1.1  christos 	      h->pointer_equality_needed = 0;
   5734      1.1  christos 	      /* After adjust_dynamic_symbol, non_got_ref set in the
   5735      1.1  christos 		 non-pic case means that dyn_relocs for this symbol
   5736      1.1  christos 		 should be discarded.  */
   5737      1.1  christos 	      h->non_got_ref = 0;
   5738      1.1  christos 	    }
   5739      1.1  christos 	}
   5740      1.1  christos       h->protected_def = 0;
   5741      1.1  christos       return TRUE;
   5742      1.1  christos     }
   5743      1.1  christos   else
   5744      1.1  christos     h->plt.plist = NULL;
   5745      1.1  christos 
   5746      1.1  christos   /* If this is a weak symbol, and there is a real definition, the
   5747      1.1  christos      processor independent code will have arranged for us to see the
   5748      1.1  christos      real definition first, and we can just use the same value.  */
   5749      1.1  christos   if (h->u.weakdef != NULL)
   5750      1.1  christos     {
   5751      1.1  christos       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
   5752      1.1  christos 		  || h->u.weakdef->root.type == bfd_link_hash_defweak);
   5753      1.1  christos       h->root.u.def.section = h->u.weakdef->root.u.def.section;
   5754      1.1  christos       h->root.u.def.value = h->u.weakdef->root.u.def.value;
   5755  1.1.1.4  christos       if (ELIMINATE_COPY_RELOCS)
   5756  1.1.1.3  christos 	h->non_got_ref = h->u.weakdef->non_got_ref;
   5757  1.1.1.3  christos       return TRUE;
   5758  1.1.1.3  christos     }
   5759  1.1.1.3  christos 
   5760      1.1  christos   /* This is a reference to a symbol defined by a dynamic object which
   5761      1.1  christos      is not a function.  */
   5762      1.1  christos 
   5763      1.1  christos   /* If we are creating a shared library, we must presume that the
   5764  1.1.1.3  christos      only references to the symbol are via the global offset table.
   5765  1.1.1.3  christos      For such cases we need not do anything here; the relocations will
   5766  1.1.1.3  christos      be handled correctly by relocate_section.  */
   5767  1.1.1.3  christos   if (bfd_link_pic (info))
   5768  1.1.1.3  christos     {
   5769  1.1.1.3  christos       h->protected_def = 0;
   5770  1.1.1.3  christos       return TRUE;
   5771  1.1.1.3  christos     }
   5772  1.1.1.3  christos 
   5773  1.1.1.3  christos   /* If there are no references to this symbol that do not use the
   5774  1.1.1.3  christos      GOT, we don't need to generate a copy reloc.  */
   5775  1.1.1.3  christos   if (!h->non_got_ref)
   5776  1.1.1.3  christos     {
   5777  1.1.1.3  christos       h->protected_def = 0;
   5778  1.1.1.3  christos       return TRUE;
   5779  1.1.1.3  christos     }
   5780  1.1.1.3  christos 
   5781  1.1.1.3  christos   /* Protected variables do not work with .dynbss.  The copy in
   5782  1.1.1.3  christos      .dynbss won't be used by the shared library with the protected
   5783  1.1.1.3  christos      definition for the variable.  Editing to PIC, or text relocations
   5784  1.1.1.3  christos      are preferable to an incorrect program.  */
   5785  1.1.1.3  christos   if (h->protected_def)
   5786  1.1.1.3  christos     {
   5787  1.1.1.3  christos       if (ELIMINATE_COPY_RELOCS
   5788  1.1.1.3  christos 	  && ppc_elf_hash_entry (h)->has_addr16_ha
   5789  1.1.1.3  christos 	  && ppc_elf_hash_entry (h)->has_addr16_lo
   5790  1.1.1.3  christos 	  && htab->params->pic_fixup == 0
   5791      1.1  christos 	  && info->disable_target_specific_optimizations <= 1)
   5792      1.1  christos 	htab->params->pic_fixup = 1;
   5793      1.1  christos       h->non_got_ref = 0;
   5794      1.1  christos       return TRUE;
   5795      1.1  christos     }
   5796      1.1  christos 
   5797      1.1  christos   /* If -z nocopyreloc was given, we won't generate them either.  */
   5798      1.1  christos   if (info->nocopyreloc)
   5799      1.1  christos     {
   5800      1.1  christos       h->non_got_ref = 0;
   5801      1.1  christos       return TRUE;
   5802      1.1  christos     }
   5803      1.1  christos 
   5804      1.1  christos    /* If we didn't find any dynamic relocs in read-only sections, then
   5805      1.1  christos       we'll be keeping the dynamic relocs and avoiding the copy reloc.
   5806      1.1  christos       We can't do this if there are any small data relocations.  This
   5807      1.1  christos       doesn't work on VxWorks, where we can not have dynamic
   5808      1.1  christos       relocations (other than copy and jump slot relocations) in an
   5809      1.1  christos       executable.  */
   5810      1.1  christos   if (ELIMINATE_COPY_RELOCS
   5811      1.1  christos       && !ppc_elf_hash_entry (h)->has_sda_refs
   5812      1.1  christos       && !htab->is_vxworks
   5813      1.1  christos       && !h->def_regular
   5814      1.1  christos       && !readonly_dynrelocs (h))
   5815      1.1  christos     {
   5816      1.1  christos       h->non_got_ref = 0;
   5817      1.1  christos       return TRUE;
   5818      1.1  christos     }
   5819      1.1  christos 
   5820      1.1  christos   /* We must allocate the symbol in our .dynbss section, which will
   5821      1.1  christos      become part of the .bss section of the executable.  There will be
   5822      1.1  christos      an entry for this symbol in the .dynsym section.  The dynamic
   5823  1.1.1.5  christos      object will contain position independent code, so all references
   5824  1.1.1.5  christos      from the dynamic object to this symbol will go through the global
   5825      1.1  christos      offset table.  The dynamic linker will use the .dynsym entry to
   5826  1.1.1.5  christos      determine the address it must put in the global offset table, so
   5827      1.1  christos      both the dynamic object and the regular object will refer to the
   5828      1.1  christos      same memory location for the variable.
   5829      1.1  christos 
   5830      1.1  christos      Of course, if the symbol is referenced using SDAREL relocs, we
   5831      1.1  christos      must instead allocate it in .sbss.  */
   5832      1.1  christos 
   5833      1.1  christos   if (ppc_elf_hash_entry (h)->has_sda_refs)
   5834      1.1  christos     s = htab->dynsbss;
   5835      1.1  christos   else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
   5836      1.1  christos     s = htab->elf.sdynrelro;
   5837      1.1  christos   else
   5838      1.1  christos     s = htab->elf.sdynbss;
   5839  1.1.1.5  christos   BFD_ASSERT (s != NULL);
   5840  1.1.1.5  christos 
   5841      1.1  christos   /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
   5842  1.1.1.5  christos      copy the initial value out of the dynamic object and into the
   5843      1.1  christos      runtime process image.  We need to remember the offset into the
   5844      1.1  christos      .rela.bss section we are going to use.  */
   5845      1.1  christos   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
   5846      1.1  christos     {
   5847      1.1  christos       asection *srel;
   5848  1.1.1.2  christos 
   5849      1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   5850      1.1  christos 	srel = htab->relsbss;
   5851      1.1  christos       else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
   5852      1.1  christos 	srel = htab->elf.sreldynrelro;
   5853      1.1  christos       else
   5854      1.1  christos 	srel = htab->elf.srelbss;
   5855      1.1  christos       BFD_ASSERT (srel != NULL);
   5856      1.1  christos       srel->size += sizeof (Elf32_External_Rela);
   5857      1.1  christos       h->needs_copy = 1;
   5858      1.1  christos     }
   5859      1.1  christos 
   5860      1.1  christos   return _bfd_elf_adjust_dynamic_copy (info, h, s);
   5861      1.1  christos }
   5862      1.1  christos 
   5863      1.1  christos /* Generate a symbol to mark plt call stubs.  For non-PIC code the sym is
   5865      1.1  christos    xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
   5866      1.1  christos    specifying the addend on the plt relocation.  For -fpic code, the sym
   5867      1.1  christos    is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
   5868  1.1.1.4  christos    xxxxxxxx.got2.plt_pic32.<callee>.  */
   5869      1.1  christos 
   5870      1.1  christos static bfd_boolean
   5871      1.1  christos add_stub_sym (struct plt_entry *ent,
   5872      1.1  christos 	      struct elf_link_hash_entry *h,
   5873      1.1  christos 	      struct bfd_link_info *info)
   5874      1.1  christos {
   5875      1.1  christos   struct elf_link_hash_entry *sh;
   5876      1.1  christos   size_t len1, len2, len3;
   5877      1.1  christos   char *name;
   5878      1.1  christos   const char *stub;
   5879      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   5880      1.1  christos 
   5881      1.1  christos   if (bfd_link_pic (info))
   5882      1.1  christos     stub = ".plt_pic32.";
   5883      1.1  christos   else
   5884      1.1  christos     stub = ".plt_call32.";
   5885      1.1  christos 
   5886      1.1  christos   len1 = strlen (h->root.root.string);
   5887      1.1  christos   len2 = strlen (stub);
   5888      1.1  christos   len3 = 0;
   5889      1.1  christos   if (ent->sec)
   5890      1.1  christos     len3 = strlen (ent->sec->name);
   5891      1.1  christos   name = bfd_malloc (len1 + len2 + len3 + 9);
   5892      1.1  christos   if (name == NULL)
   5893      1.1  christos     return FALSE;
   5894      1.1  christos   sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
   5895      1.1  christos   if (ent->sec)
   5896      1.1  christos     memcpy (name + 8, ent->sec->name, len3);
   5897      1.1  christos   memcpy (name + 8 + len3, stub, len2);
   5898      1.1  christos   memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
   5899  1.1.1.3  christos   sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
   5900      1.1  christos   if (sh == NULL)
   5901      1.1  christos     return FALSE;
   5902      1.1  christos   if (sh->root.type == bfd_link_hash_new)
   5903      1.1  christos     {
   5904      1.1  christos       sh->root.type = bfd_link_hash_defined;
   5905      1.1  christos       sh->root.u.def.section = htab->glink;
   5906      1.1  christos       sh->root.u.def.value = ent->glink_offset;
   5907      1.1  christos       sh->ref_regular = 1;
   5908      1.1  christos       sh->def_regular = 1;
   5909      1.1  christos       sh->ref_regular_nonweak = 1;
   5910      1.1  christos       sh->forced_local = 1;
   5911      1.1  christos       sh->non_elf = 0;
   5912      1.1  christos       sh->root.linker_def = 1;
   5913      1.1  christos     }
   5914      1.1  christos   return TRUE;
   5915  1.1.1.5  christos }
   5916  1.1.1.5  christos 
   5917      1.1  christos /* Allocate NEED contiguous space in .got, and return the offset.
   5918      1.1  christos    Handles allocation of the got header when crossing 32k.  */
   5919      1.1  christos 
   5920      1.1  christos static bfd_vma
   5921      1.1  christos allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
   5922      1.1  christos {
   5923      1.1  christos   bfd_vma where;
   5924      1.1  christos   unsigned int max_before_header;
   5925      1.1  christos 
   5926      1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   5927      1.1  christos     {
   5928  1.1.1.5  christos       where = htab->elf.sgot->size;
   5929  1.1.1.5  christos       htab->elf.sgot->size += need;
   5930      1.1  christos     }
   5931  1.1.1.5  christos   else
   5932  1.1.1.5  christos     {
   5933      1.1  christos       max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
   5934  1.1.1.5  christos       if (need <= htab->got_gap)
   5935  1.1.1.5  christos 	{
   5936      1.1  christos 	  where = max_before_header - htab->got_gap;
   5937      1.1  christos 	  htab->got_gap -= need;
   5938      1.1  christos 	}
   5939      1.1  christos       else
   5940      1.1  christos 	{
   5941  1.1.1.5  christos 	  if (htab->elf.sgot->size + need > max_before_header
   5942  1.1.1.5  christos 	      && htab->elf.sgot->size <= max_before_header)
   5943  1.1.1.5  christos 	    {
   5944  1.1.1.5  christos 	      htab->got_gap = max_before_header - htab->elf.sgot->size;
   5945  1.1.1.5  christos 	      htab->elf.sgot->size = max_before_header + htab->got_header_size;
   5946  1.1.1.5  christos 	    }
   5947  1.1.1.5  christos 	  where = htab->elf.sgot->size;
   5948  1.1.1.5  christos 	  htab->elf.sgot->size += need;
   5949  1.1.1.5  christos 	}
   5950  1.1.1.5  christos     }
   5951  1.1.1.5  christos   return where;
   5952  1.1.1.5  christos }
   5953  1.1.1.5  christos 
   5954  1.1.1.5  christos /* If H is undefined weak, make it dynamic if that makes sense.  */
   5955  1.1.1.5  christos 
   5956  1.1.1.5  christos static bfd_boolean
   5957  1.1.1.5  christos ensure_undefweak_dynamic (struct bfd_link_info *info,
   5958      1.1  christos 			  struct elf_link_hash_entry *h)
   5959      1.1  christos {
   5960      1.1  christos   struct elf_link_hash_table *htab = elf_hash_table (info);
   5961      1.1  christos 
   5962      1.1  christos   if (htab->dynamic_sections_created
   5963      1.1  christos       && h->root.type == bfd_link_hash_undefweak
   5964      1.1  christos       && h->dynindx == -1
   5965      1.1  christos       && !h->forced_local
   5966      1.1  christos       && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
   5967  1.1.1.5  christos     return bfd_elf_link_record_dynamic_symbol (info, h);
   5968      1.1  christos   return TRUE;
   5969      1.1  christos }
   5970      1.1  christos 
   5971      1.1  christos /* Allocate space in associated reloc sections for dynamic relocs.  */
   5972      1.1  christos 
   5973      1.1  christos static bfd_boolean
   5974  1.1.1.3  christos allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
   5975  1.1.1.3  christos {
   5976  1.1.1.3  christos   struct bfd_link_info *info = inf;
   5977  1.1.1.3  christos   struct ppc_elf_link_hash_entry *eh;
   5978  1.1.1.3  christos   struct ppc_elf_link_hash_table *htab;
   5979  1.1.1.3  christos   struct elf_dyn_relocs *p;
   5980  1.1.1.3  christos   bfd_boolean dyn;
   5981      1.1  christos 
   5982      1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   5983      1.1  christos     return TRUE;
   5984  1.1.1.5  christos 
   5985  1.1.1.5  christos   htab = ppc_elf_hash_table (info);
   5986  1.1.1.5  christos   eh = (struct ppc_elf_link_hash_entry *) h;
   5987  1.1.1.5  christos   if (eh->elf.got.refcount > 0
   5988      1.1  christos       || (ELIMINATE_COPY_RELOCS
   5989      1.1  christos 	  && !eh->elf.def_regular
   5990      1.1  christos 	  && eh->elf.protected_def
   5991      1.1  christos 	  && eh->has_addr16_ha
   5992      1.1  christos 	  && eh->has_addr16_lo
   5993      1.1  christos 	  && htab->params->pic_fixup > 0))
   5994      1.1  christos     {
   5995      1.1  christos       unsigned int need;
   5996      1.1  christos 
   5997      1.1  christos       /* Make sure this symbol is output as a dynamic symbol.
   5998      1.1  christos 	 Undefined weak syms won't yet be marked as dynamic.  */
   5999      1.1  christos       if (!ensure_undefweak_dynamic (info, &eh->elf))
   6000      1.1  christos 	return FALSE;
   6001      1.1  christos 
   6002      1.1  christos       need = 0;
   6003      1.1  christos       if ((eh->tls_mask & TLS_TLS) != 0)
   6004      1.1  christos 	{
   6005      1.1  christos 	  if ((eh->tls_mask & TLS_LD) != 0)
   6006      1.1  christos 	    {
   6007      1.1  christos 	      if (!eh->elf.def_dynamic)
   6008      1.1  christos 		/* We'll just use htab->tlsld_got.offset.  This should
   6009      1.1  christos 		   always be the case.  It's a little odd if we have
   6010      1.1  christos 		   a local dynamic reloc against a non-local symbol.  */
   6011      1.1  christos 		htab->tlsld_got.refcount += 1;
   6012      1.1  christos 	      else
   6013      1.1  christos 		need += 8;
   6014      1.1  christos 	    }
   6015      1.1  christos 	  if ((eh->tls_mask & TLS_GD) != 0)
   6016  1.1.1.4  christos 	    need += 8;
   6017  1.1.1.5  christos 	  if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6018  1.1.1.5  christos 	    need += 4;
   6019  1.1.1.5  christos 	  if ((eh->tls_mask & TLS_DTPREL) != 0)
   6020      1.1  christos 	    need += 4;
   6021      1.1  christos 	}
   6022      1.1  christos       else
   6023  1.1.1.5  christos 	need += 4;
   6024      1.1  christos       if (need == 0)
   6025      1.1  christos 	eh->elf.got.offset = (bfd_vma) -1;
   6026  1.1.1.5  christos       else
   6027      1.1  christos 	{
   6028      1.1  christos 	  eh->elf.got.offset = allocate_got (htab, need);
   6029      1.1  christos 	  if ((bfd_link_pic (info)
   6030      1.1  christos 	       || (htab->elf.dynamic_sections_created
   6031      1.1  christos 		   && eh->elf.dynindx != -1
   6032      1.1  christos 		   && !SYMBOL_REFERENCES_LOCAL (info, &eh->elf)))
   6033      1.1  christos 	      && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
   6034      1.1  christos 		  || eh->elf.root.type != bfd_link_hash_undefweak))
   6035      1.1  christos 	    {
   6036      1.1  christos 	      asection *rsec = htab->elf.srelgot;
   6037      1.1  christos 
   6038      1.1  christos 	      if (eh->elf.type == STT_GNU_IFUNC)
   6039  1.1.1.5  christos 		rsec = htab->elf.irelplt;
   6040  1.1.1.5  christos 	      /* All the entries we allocated need relocs.
   6041  1.1.1.5  christos 		 Except LD only needs one.  */
   6042  1.1.1.5  christos 	      if ((eh->tls_mask & TLS_LD) != 0
   6043  1.1.1.5  christos 		  && eh->elf.def_dynamic)
   6044  1.1.1.5  christos 		need -= 4;
   6045      1.1  christos 	      rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
   6046      1.1  christos 	    }
   6047      1.1  christos 	}
   6048      1.1  christos     }
   6049      1.1  christos   else
   6050      1.1  christos     eh->elf.got.offset = (bfd_vma) -1;
   6051  1.1.1.5  christos 
   6052      1.1  christos   if (!htab->elf.dynamic_sections_created
   6053      1.1  christos       && h->type != STT_GNU_IFUNC)
   6054      1.1  christos     eh->dyn_relocs = NULL;
   6055      1.1  christos 
   6056      1.1  christos   if (eh->dyn_relocs == NULL)
   6057      1.1  christos     ;
   6058      1.1  christos 
   6059      1.1  christos   /* In the shared -Bsymbolic case, discard space allocated for
   6060      1.1  christos      dynamic pc-relative relocs against symbols which turn out to be
   6061      1.1  christos      defined in regular objects.  For the normal shared case, discard
   6062      1.1  christos      space for relocs that have become local due to symbol visibility
   6063      1.1  christos      changes.  */
   6064      1.1  christos   else if (bfd_link_pic (info))
   6065      1.1  christos     {
   6066      1.1  christos       /* Relocs that use pc_count are those that appear on a call insn,
   6067      1.1  christos 	 or certain REL relocs (see must_be_dyn_reloc) that can be
   6068      1.1  christos 	 generated via assembly.  We want calls to protected symbols to
   6069      1.1  christos 	 resolve directly to the function rather than going via the plt.
   6070      1.1  christos 	 If people want function pointer comparisons to work as expected
   6071      1.1  christos 	 then they should avoid writing weird assembly.  */
   6072      1.1  christos       if (SYMBOL_CALLS_LOCAL (info, h))
   6073      1.1  christos 	{
   6074      1.1  christos 	  struct elf_dyn_relocs **pp;
   6075      1.1  christos 
   6076      1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6077      1.1  christos 	    {
   6078      1.1  christos 	      p->count -= p->pc_count;
   6079      1.1  christos 	      p->pc_count = 0;
   6080      1.1  christos 	      if (p->count == 0)
   6081      1.1  christos 		*pp = p->next;
   6082      1.1  christos 	      else
   6083      1.1  christos 		pp = &p->next;
   6084      1.1  christos 	    }
   6085      1.1  christos 	}
   6086      1.1  christos 
   6087      1.1  christos       if (htab->is_vxworks)
   6088      1.1  christos 	{
   6089      1.1  christos 	  struct elf_dyn_relocs **pp;
   6090      1.1  christos 
   6091      1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6092      1.1  christos 	    {
   6093      1.1  christos 	      if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
   6094      1.1  christos 		*pp = p->next;
   6095      1.1  christos 	      else
   6096      1.1  christos 		pp = &p->next;
   6097      1.1  christos 	    }
   6098      1.1  christos 	}
   6099      1.1  christos 
   6100      1.1  christos       /* Discard relocs on undefined symbols that must be local.  */
   6101      1.1  christos       if (eh->dyn_relocs != NULL
   6102      1.1  christos 	  && h->root.type == bfd_link_hash_undefined
   6103      1.1  christos 	  && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
   6104  1.1.1.5  christos 	      || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
   6105  1.1.1.5  christos 	eh->dyn_relocs = NULL;
   6106      1.1  christos 
   6107      1.1  christos       /* Also discard relocs on undefined weak syms with non-default
   6108      1.1  christos 	 visibility.  */
   6109      1.1  christos       if (eh->dyn_relocs != NULL
   6110  1.1.1.5  christos 	  && h->root.type == bfd_link_hash_undefweak)
   6111      1.1  christos 	{
   6112      1.1  christos 	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   6113      1.1  christos 	    eh->dyn_relocs = NULL;
   6114  1.1.1.3  christos 
   6115  1.1.1.3  christos 	  /* Make sure undefined weak symbols are output as a dynamic
   6116  1.1.1.3  christos 	     symbol in PIEs.  */
   6117  1.1.1.3  christos 	  else if (!ensure_undefweak_dynamic (info, h))
   6118  1.1.1.3  christos 	    return FALSE;
   6119      1.1  christos 	}
   6120      1.1  christos     }
   6121      1.1  christos   else if (ELIMINATE_COPY_RELOCS)
   6122  1.1.1.5  christos     {
   6123  1.1.1.5  christos       /* For the non-pic case, discard space for relocs against
   6124      1.1  christos 	 symbols which turn out to need copy relocs or are not
   6125  1.1.1.5  christos 	 dynamic.  */
   6126  1.1.1.5  christos       if (!h->non_got_ref
   6127      1.1  christos 	  && !h->def_regular
   6128  1.1.1.5  christos 	  && !(h->protected_def
   6129  1.1.1.5  christos 	       && eh->has_addr16_ha
   6130      1.1  christos 	       && eh->has_addr16_lo
   6131      1.1  christos 	       && htab->params->pic_fixup > 0))
   6132  1.1.1.5  christos 	{
   6133      1.1  christos 	  /* Make sure this symbol is output as a dynamic symbol.
   6134      1.1  christos 	     Undefined weak syms won't yet be marked as dynamic.  */
   6135      1.1  christos 	  if (!ensure_undefweak_dynamic (info, h))
   6136      1.1  christos 	    return FALSE;
   6137  1.1.1.5  christos 
   6138      1.1  christos 	  if (h->dynindx == -1)
   6139      1.1  christos 	    eh->dyn_relocs = NULL;
   6140      1.1  christos 	}
   6141  1.1.1.5  christos       else
   6142  1.1.1.5  christos 	eh->dyn_relocs = NULL;
   6143  1.1.1.5  christos     }
   6144  1.1.1.5  christos 
   6145  1.1.1.5  christos   /* Allocate space.  */
   6146  1.1.1.5  christos   for (p = eh->dyn_relocs; p != NULL; p = p->next)
   6147  1.1.1.5  christos     {
   6148  1.1.1.5  christos       asection *sreloc = elf_section_data (p->sec)->sreloc;
   6149  1.1.1.5  christos       if (eh->elf.type == STT_GNU_IFUNC)
   6150  1.1.1.5  christos 	sreloc = htab->elf.irelplt;
   6151  1.1.1.5  christos       sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6152  1.1.1.5  christos     }
   6153  1.1.1.5  christos 
   6154  1.1.1.5  christos   /* Handle PLT relocs.  Done last, after dynindx has settled.  */
   6155  1.1.1.5  christos   dyn = htab->elf.dynamic_sections_created && h->dynindx != -1;
   6156  1.1.1.5  christos   if (dyn || h->type == STT_GNU_IFUNC)
   6157  1.1.1.5  christos     {
   6158  1.1.1.5  christos       struct plt_entry *ent;
   6159  1.1.1.5  christos       bfd_boolean doneone = FALSE;
   6160  1.1.1.5  christos       bfd_vma plt_offset = 0, glink_offset = 0;
   6161  1.1.1.5  christos 
   6162  1.1.1.5  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   6163  1.1.1.5  christos 	if (ent->plt.refcount > 0)
   6164  1.1.1.5  christos 	  {
   6165  1.1.1.5  christos 	    asection *s = htab->elf.splt;
   6166  1.1.1.5  christos 
   6167  1.1.1.5  christos 	    if (!dyn)
   6168  1.1.1.5  christos 	      s = htab->elf.iplt;
   6169  1.1.1.5  christos 
   6170  1.1.1.5  christos 	    if (htab->plt_type == PLT_NEW || !dyn)
   6171  1.1.1.5  christos 	      {
   6172  1.1.1.5  christos 		if (!doneone)
   6173  1.1.1.5  christos 		  {
   6174  1.1.1.5  christos 		    plt_offset = s->size;
   6175  1.1.1.5  christos 		    s->size += 4;
   6176  1.1.1.5  christos 		  }
   6177  1.1.1.5  christos 		ent->plt.offset = plt_offset;
   6178  1.1.1.5  christos 
   6179  1.1.1.5  christos 		s = htab->glink;
   6180  1.1.1.5  christos 		if (!doneone || bfd_link_pic (info))
   6181  1.1.1.5  christos 		  {
   6182  1.1.1.5  christos 		    glink_offset = s->size;
   6183  1.1.1.5  christos 		    s->size += GLINK_ENTRY_SIZE;
   6184  1.1.1.5  christos 		    if (h == htab->tls_get_addr
   6185  1.1.1.5  christos 			&& !htab->params->no_tls_get_addr_opt)
   6186  1.1.1.5  christos 		      s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
   6187  1.1.1.5  christos 		  }
   6188  1.1.1.5  christos 		if (!doneone
   6189  1.1.1.5  christos 		    && !bfd_link_pic (info)
   6190  1.1.1.5  christos 		    && h->def_dynamic
   6191  1.1.1.5  christos 		    && !h->def_regular)
   6192  1.1.1.5  christos 		  {
   6193  1.1.1.5  christos 		    h->root.u.def.section = s;
   6194  1.1.1.5  christos 		    h->root.u.def.value = glink_offset;
   6195  1.1.1.5  christos 		  }
   6196  1.1.1.5  christos 		ent->glink_offset = glink_offset;
   6197  1.1.1.5  christos 
   6198  1.1.1.5  christos 		if (htab->params->emit_stub_syms
   6199  1.1.1.5  christos 		    && !add_stub_sym (ent, h, info))
   6200  1.1.1.5  christos 		  return FALSE;
   6201  1.1.1.5  christos 	      }
   6202  1.1.1.5  christos 	    else
   6203  1.1.1.5  christos 	      {
   6204  1.1.1.5  christos 		if (!doneone)
   6205  1.1.1.5  christos 		  {
   6206  1.1.1.5  christos 		    /* If this is the first .plt entry, make room
   6207  1.1.1.5  christos 		       for the special first entry.  */
   6208  1.1.1.5  christos 		    if (s->size == 0)
   6209  1.1.1.5  christos 		      s->size += htab->plt_initial_entry_size;
   6210  1.1.1.5  christos 
   6211  1.1.1.5  christos 		    /* The PowerPC PLT is actually composed of two
   6212  1.1.1.5  christos 		       parts, the first part is 2 words (for a load
   6213  1.1.1.5  christos 		       and a jump), and then there is a remaining
   6214  1.1.1.5  christos 		       word available at the end.  */
   6215  1.1.1.5  christos 		    plt_offset = (htab->plt_initial_entry_size
   6216  1.1.1.5  christos 				  + (htab->plt_slot_size
   6217  1.1.1.5  christos 				     * ((s->size
   6218  1.1.1.5  christos 					 - htab->plt_initial_entry_size)
   6219  1.1.1.5  christos 					/ htab->plt_entry_size)));
   6220  1.1.1.5  christos 
   6221  1.1.1.5  christos 		    /* If this symbol is not defined in a regular
   6222  1.1.1.5  christos 		       file, and we are not generating a shared
   6223  1.1.1.5  christos 		       library, then set the symbol to this location
   6224  1.1.1.5  christos 		       in the .plt.  This is to avoid text
   6225  1.1.1.5  christos 		       relocations, and is required to make
   6226  1.1.1.5  christos 		       function pointers compare as equal between
   6227  1.1.1.5  christos 		       the normal executable and the shared library.  */
   6228  1.1.1.5  christos 		    if (! bfd_link_pic (info)
   6229  1.1.1.5  christos 			&& h->def_dynamic
   6230  1.1.1.5  christos 			&& !h->def_regular)
   6231  1.1.1.5  christos 		      {
   6232  1.1.1.5  christos 			h->root.u.def.section = s;
   6233  1.1.1.5  christos 			h->root.u.def.value = plt_offset;
   6234  1.1.1.5  christos 		      }
   6235  1.1.1.5  christos 
   6236  1.1.1.5  christos 		    /* Make room for this entry.  */
   6237  1.1.1.5  christos 		    s->size += htab->plt_entry_size;
   6238  1.1.1.5  christos 		    /* After the 8192nd entry, room for two entries
   6239  1.1.1.5  christos 		       is allocated.  */
   6240  1.1.1.5  christos 		    if (htab->plt_type == PLT_OLD
   6241  1.1.1.5  christos 			&& (s->size - htab->plt_initial_entry_size)
   6242  1.1.1.5  christos 			/ htab->plt_entry_size
   6243  1.1.1.5  christos 			> PLT_NUM_SINGLE_ENTRIES)
   6244  1.1.1.5  christos 		      s->size += htab->plt_entry_size;
   6245  1.1.1.5  christos 		  }
   6246  1.1.1.5  christos 		ent->plt.offset = plt_offset;
   6247  1.1.1.5  christos 	      }
   6248  1.1.1.5  christos 
   6249  1.1.1.5  christos 	    /* We also need to make an entry in the .rela.plt section.  */
   6250  1.1.1.5  christos 	    if (!doneone)
   6251  1.1.1.5  christos 	      {
   6252  1.1.1.5  christos 		if (!dyn)
   6253  1.1.1.5  christos 		  htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
   6254  1.1.1.5  christos 		else
   6255  1.1.1.5  christos 		  {
   6256  1.1.1.5  christos 		    htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
   6257  1.1.1.5  christos 
   6258  1.1.1.5  christos 		    if (htab->plt_type == PLT_VXWORKS)
   6259  1.1.1.5  christos 		      {
   6260  1.1.1.5  christos 			/* Allocate space for the unloaded relocations.  */
   6261  1.1.1.5  christos 			if (!bfd_link_pic (info)
   6262  1.1.1.5  christos 			    && htab->elf.dynamic_sections_created)
   6263  1.1.1.5  christos 			  {
   6264  1.1.1.5  christos 			    if (ent->plt.offset
   6265  1.1.1.5  christos 				== (bfd_vma) htab->plt_initial_entry_size)
   6266  1.1.1.5  christos 			      {
   6267  1.1.1.5  christos 				htab->srelplt2->size
   6268  1.1.1.5  christos 				  += (sizeof (Elf32_External_Rela)
   6269  1.1.1.5  christos 				      * VXWORKS_PLTRESOLVE_RELOCS);
   6270  1.1.1.5  christos 			      }
   6271  1.1.1.5  christos 
   6272  1.1.1.5  christos 			    htab->srelplt2->size
   6273  1.1.1.5  christos 			      += (sizeof (Elf32_External_Rela)
   6274  1.1.1.5  christos 				  * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
   6275  1.1.1.5  christos 			  }
   6276  1.1.1.5  christos 
   6277  1.1.1.5  christos 			/* Every PLT entry has an associated GOT entry in
   6278  1.1.1.5  christos 			   .got.plt.  */
   6279  1.1.1.5  christos 			htab->elf.sgotplt->size += 4;
   6280  1.1.1.5  christos 		      }
   6281  1.1.1.5  christos 		  }
   6282  1.1.1.5  christos 		doneone = TRUE;
   6283  1.1.1.5  christos 	      }
   6284  1.1.1.5  christos 	  }
   6285  1.1.1.5  christos 	else
   6286  1.1.1.5  christos 	  ent->plt.offset = (bfd_vma) -1;
   6287      1.1  christos 
   6288      1.1  christos       if (!doneone)
   6289      1.1  christos 	{
   6290      1.1  christos 	  h->plt.plist = NULL;
   6291      1.1  christos 	  h->needs_plt = 0;
   6292      1.1  christos 	}
   6293      1.1  christos     }
   6294      1.1  christos   else
   6295      1.1  christos     {
   6296      1.1  christos       h->plt.plist = NULL;
   6297      1.1  christos       h->needs_plt = 0;
   6298      1.1  christos     }
   6299      1.1  christos 
   6300      1.1  christos   return TRUE;
   6301      1.1  christos }
   6302      1.1  christos 
   6303      1.1  christos /* Set DF_TEXTREL if we find any dynamic relocs that apply to
   6304      1.1  christos    read-only sections.  */
   6305      1.1  christos 
   6306      1.1  christos static bfd_boolean
   6307      1.1  christos maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
   6308      1.1  christos {
   6309      1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   6310      1.1  christos     return TRUE;
   6311      1.1  christos 
   6312      1.1  christos   if (readonly_dynrelocs (h))
   6313      1.1  christos     {
   6314      1.1  christos       ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
   6315      1.1  christos 
   6316      1.1  christos       /* Not an error, just cut short the traversal.  */
   6317      1.1  christos       return FALSE;
   6318      1.1  christos     }
   6319      1.1  christos   return TRUE;
   6320      1.1  christos }
   6321      1.1  christos 
   6322      1.1  christos static const unsigned char glink_eh_frame_cie[] =
   6323      1.1  christos {
   6324      1.1  christos   0, 0, 0, 16,				/* length.  */
   6325      1.1  christos   0, 0, 0, 0,				/* id.  */
   6326  1.1.1.2  christos   1,					/* CIE version.  */
   6327      1.1  christos   'z', 'R', 0,				/* Augmentation string.  */
   6328      1.1  christos   4,					/* Code alignment.  */
   6329      1.1  christos   0x7c,					/* Data alignment.  */
   6330      1.1  christos   65,					/* RA reg.  */
   6331      1.1  christos   1,					/* Augmentation size.  */
   6332      1.1  christos   DW_EH_PE_pcrel | DW_EH_PE_sdata4,	/* FDE encoding.  */
   6333      1.1  christos   DW_CFA_def_cfa, 1, 0			/* def_cfa: r1 offset 0.  */
   6334      1.1  christos };
   6335      1.1  christos 
   6336      1.1  christos /* Set the sizes of the dynamic sections.  */
   6337      1.1  christos 
   6338      1.1  christos static bfd_boolean
   6339      1.1  christos ppc_elf_size_dynamic_sections (bfd *output_bfd,
   6340      1.1  christos 			       struct bfd_link_info *info)
   6341      1.1  christos {
   6342      1.1  christos   struct ppc_elf_link_hash_table *htab;
   6343      1.1  christos   asection *s;
   6344  1.1.1.4  christos   bfd_boolean relocs;
   6345      1.1  christos   bfd *ibfd;
   6346      1.1  christos 
   6347      1.1  christos #ifdef DEBUG
   6348      1.1  christos   fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
   6349      1.1  christos #endif
   6350      1.1  christos 
   6351      1.1  christos   htab = ppc_elf_hash_table (info);
   6352      1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   6353      1.1  christos 
   6354      1.1  christos   if (elf_hash_table (info)->dynamic_sections_created)
   6355      1.1  christos     {
   6356      1.1  christos       /* Set the contents of the .interp section to the interpreter.  */
   6357      1.1  christos       if (bfd_link_executable (info) && !info->nointerp)
   6358      1.1  christos 	{
   6359      1.1  christos 	  s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
   6360  1.1.1.2  christos 	  BFD_ASSERT (s != NULL);
   6361      1.1  christos 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
   6362      1.1  christos 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
   6363      1.1  christos 	}
   6364      1.1  christos     }
   6365      1.1  christos 
   6366      1.1  christos   if (htab->plt_type == PLT_OLD)
   6367      1.1  christos     htab->got_header_size = 16;
   6368      1.1  christos   else if (htab->plt_type == PLT_NEW)
   6369      1.1  christos     htab->got_header_size = 12;
   6370      1.1  christos 
   6371      1.1  christos   /* Set up .got offsets for local syms, and space for local dynamic
   6372      1.1  christos      relocs.  */
   6373      1.1  christos   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   6374      1.1  christos     {
   6375      1.1  christos       bfd_signed_vma *local_got;
   6376      1.1  christos       bfd_signed_vma *end_local_got;
   6377      1.1  christos       struct plt_entry **local_plt;
   6378      1.1  christos       struct plt_entry **end_local_plt;
   6379      1.1  christos       char *lgot_masks;
   6380      1.1  christos       bfd_size_type locsymcount;
   6381      1.1  christos       Elf_Internal_Shdr *symtab_hdr;
   6382      1.1  christos 
   6383      1.1  christos       if (!is_ppc_elf (ibfd))
   6384      1.1  christos 	continue;
   6385      1.1  christos 
   6386      1.1  christos       for (s = ibfd->sections; s != NULL; s = s->next)
   6387      1.1  christos 	{
   6388      1.1  christos 	  struct ppc_dyn_relocs *p;
   6389      1.1  christos 
   6390      1.1  christos 	  for (p = ((struct ppc_dyn_relocs *)
   6391      1.1  christos 		    elf_section_data (s)->local_dynrel);
   6392      1.1  christos 	       p != NULL;
   6393      1.1  christos 	       p = p->next)
   6394      1.1  christos 	    {
   6395      1.1  christos 	      if (!bfd_is_abs_section (p->sec)
   6396      1.1  christos 		  && bfd_is_abs_section (p->sec->output_section))
   6397      1.1  christos 		{
   6398      1.1  christos 		  /* Input section has been discarded, either because
   6399      1.1  christos 		     it is a copy of a linkonce section or due to
   6400      1.1  christos 		     linker script /DISCARD/, so we'll be discarding
   6401  1.1.1.5  christos 		     the relocs too.  */
   6402      1.1  christos 		}
   6403      1.1  christos 	      else if (htab->is_vxworks
   6404      1.1  christos 		       && strcmp (p->sec->output_section->name,
   6405      1.1  christos 				  ".tls_vars") == 0)
   6406      1.1  christos 		{
   6407      1.1  christos 		  /* Relocations in vxworks .tls_vars sections are
   6408      1.1  christos 		     handled specially by the loader.  */
   6409      1.1  christos 		}
   6410      1.1  christos 	      else if (p->count != 0)
   6411      1.1  christos 		{
   6412      1.1  christos 		  asection *sreloc = elf_section_data (p->sec)->sreloc;
   6413      1.1  christos 		  if (p->ifunc)
   6414      1.1  christos 		    sreloc = htab->elf.irelplt;
   6415      1.1  christos 		  sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6416      1.1  christos 		  if ((p->sec->output_section->flags
   6417      1.1  christos 		       & (SEC_READONLY | SEC_ALLOC))
   6418      1.1  christos 		      == (SEC_READONLY | SEC_ALLOC))
   6419      1.1  christos 		    info->flags |= DF_TEXTREL;
   6420      1.1  christos 		}
   6421      1.1  christos 	    }
   6422      1.1  christos 	}
   6423      1.1  christos 
   6424      1.1  christos       local_got = elf_local_got_refcounts (ibfd);
   6425      1.1  christos       if (!local_got)
   6426      1.1  christos 	continue;
   6427      1.1  christos 
   6428      1.1  christos       symtab_hdr = &elf_symtab_hdr (ibfd);
   6429      1.1  christos       locsymcount = symtab_hdr->sh_info;
   6430      1.1  christos       end_local_got = local_got + locsymcount;
   6431      1.1  christos       local_plt = (struct plt_entry **) end_local_got;
   6432      1.1  christos       end_local_plt = local_plt + locsymcount;
   6433      1.1  christos       lgot_masks = (char *) end_local_plt;
   6434      1.1  christos 
   6435      1.1  christos       for (; local_got < end_local_got; ++local_got, ++lgot_masks)
   6436      1.1  christos 	if (*local_got > 0)
   6437      1.1  christos 	  {
   6438      1.1  christos 	    unsigned int need = 0;
   6439      1.1  christos 	    if ((*lgot_masks & TLS_TLS) != 0)
   6440      1.1  christos 	      {
   6441      1.1  christos 		if ((*lgot_masks & TLS_GD) != 0)
   6442      1.1  christos 		  need += 8;
   6443      1.1  christos 		if ((*lgot_masks & TLS_LD) != 0)
   6444  1.1.1.4  christos 		  htab->tlsld_got.refcount += 1;
   6445      1.1  christos 		if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6446  1.1.1.5  christos 		  need += 4;
   6447      1.1  christos 		if ((*lgot_masks & TLS_DTPREL) != 0)
   6448  1.1.1.5  christos 		  need += 4;
   6449      1.1  christos 	      }
   6450      1.1  christos 	    else
   6451      1.1  christos 	      need += 4;
   6452      1.1  christos 	    if (need == 0)
   6453      1.1  christos 	      *local_got = (bfd_vma) -1;
   6454      1.1  christos 	    else
   6455      1.1  christos 	      {
   6456      1.1  christos 		*local_got = allocate_got (htab, need);
   6457      1.1  christos 		if (bfd_link_pic (info))
   6458      1.1  christos 		  {
   6459      1.1  christos 		    asection *srel = htab->elf.srelgot;
   6460      1.1  christos 		    if ((*lgot_masks & PLT_IFUNC) != 0)
   6461      1.1  christos 		      srel = htab->elf.irelplt;
   6462      1.1  christos 		    srel->size += need * (sizeof (Elf32_External_Rela) / 4);
   6463      1.1  christos 		  }
   6464      1.1  christos 	      }
   6465      1.1  christos 	  }
   6466      1.1  christos 	else
   6467      1.1  christos 	  *local_got = (bfd_vma) -1;
   6468      1.1  christos 
   6469  1.1.1.5  christos       if (htab->is_vxworks)
   6470      1.1  christos 	continue;
   6471      1.1  christos 
   6472      1.1  christos       /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt.  */
   6473      1.1  christos       for (; local_plt < end_local_plt; ++local_plt)
   6474      1.1  christos 	{
   6475      1.1  christos 	  struct plt_entry *ent;
   6476      1.1  christos 	  bfd_boolean doneone = FALSE;
   6477      1.1  christos 	  bfd_vma plt_offset = 0, glink_offset = 0;
   6478      1.1  christos 
   6479  1.1.1.4  christos 	  for (ent = *local_plt; ent != NULL; ent = ent->next)
   6480      1.1  christos 	    if (ent->plt.refcount > 0)
   6481      1.1  christos 	      {
   6482      1.1  christos 		s = htab->elf.iplt;
   6483      1.1  christos 
   6484      1.1  christos 		if (!doneone)
   6485      1.1  christos 		  {
   6486      1.1  christos 		    plt_offset = s->size;
   6487      1.1  christos 		    s->size += 4;
   6488  1.1.1.5  christos 		  }
   6489      1.1  christos 		ent->plt.offset = plt_offset;
   6490      1.1  christos 
   6491      1.1  christos 		s = htab->glink;
   6492      1.1  christos 		if (!doneone || bfd_link_pic (info))
   6493      1.1  christos 		  {
   6494      1.1  christos 		    glink_offset = s->size;
   6495      1.1  christos 		    s->size += GLINK_ENTRY_SIZE;
   6496      1.1  christos 		  }
   6497      1.1  christos 		ent->glink_offset = glink_offset;
   6498      1.1  christos 
   6499      1.1  christos 		if (!doneone)
   6500      1.1  christos 		  {
   6501      1.1  christos 		    htab->elf.irelplt->size += sizeof (Elf32_External_Rela);
   6502      1.1  christos 		    doneone = TRUE;
   6503  1.1.1.4  christos 		  }
   6504  1.1.1.5  christos 	      }
   6505      1.1  christos 	    else
   6506      1.1  christos 	      ent->plt.offset = (bfd_vma) -1;
   6507      1.1  christos 	}
   6508      1.1  christos     }
   6509  1.1.1.5  christos 
   6510      1.1  christos   /* Allocate space for global sym dynamic relocs.  */
   6511      1.1  christos   elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
   6512      1.1  christos 
   6513      1.1  christos   if (htab->tlsld_got.refcount > 0)
   6514      1.1  christos     {
   6515      1.1  christos       htab->tlsld_got.offset = allocate_got (htab, 8);
   6516      1.1  christos       if (bfd_link_pic (info))
   6517  1.1.1.5  christos 	htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
   6518      1.1  christos     }
   6519  1.1.1.5  christos   else
   6520      1.1  christos     htab->tlsld_got.offset = (bfd_vma) -1;
   6521      1.1  christos 
   6522  1.1.1.5  christos   if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
   6523      1.1  christos     {
   6524      1.1  christos       unsigned int g_o_t = 32768;
   6525      1.1  christos 
   6526      1.1  christos       /* If we haven't allocated the header, do so now.  When we get here,
   6527  1.1.1.4  christos 	 for old plt/got the got size will be 0 to 32764 (not allocated),
   6528      1.1  christos 	 or 32780 to 65536 (header allocated).  For new plt/got, the
   6529      1.1  christos 	 corresponding ranges are 0 to 32768 and 32780 to 65536.  */
   6530  1.1.1.2  christos       if (htab->elf.sgot->size <= 32768)
   6531  1.1.1.2  christos 	{
   6532  1.1.1.2  christos 	  g_o_t = htab->elf.sgot->size;
   6533  1.1.1.2  christos 	  if (htab->plt_type == PLT_OLD)
   6534  1.1.1.2  christos 	    g_o_t += 4;
   6535  1.1.1.2  christos 	  htab->elf.sgot->size += htab->got_header_size;
   6536  1.1.1.2  christos 	}
   6537  1.1.1.2  christos 
   6538  1.1.1.2  christos       htab->elf.hgot->root.u.def.value = g_o_t;
   6539  1.1.1.2  christos     }
   6540  1.1.1.2  christos   if (bfd_link_pic (info))
   6541  1.1.1.2  christos     {
   6542  1.1.1.2  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6543      1.1  christos 
   6544      1.1  christos       sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
   6545      1.1  christos       sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
   6546      1.1  christos     }
   6547      1.1  christos   if (info->emitrelocations)
   6548      1.1  christos     {
   6549      1.1  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6550  1.1.1.5  christos 
   6551  1.1.1.5  christos       if (sda != NULL && sda->ref_regular)
   6552  1.1.1.5  christos 	sda->root.u.def.section->flags |= SEC_KEEP;
   6553      1.1  christos       sda = htab->sdata[1].sym;
   6554      1.1  christos       if (sda != NULL && sda->ref_regular)
   6555  1.1.1.2  christos 	sda->root.u.def.section->flags |= SEC_KEEP;
   6556  1.1.1.2  christos     }
   6557      1.1  christos 
   6558      1.1  christos   if (htab->glink != NULL
   6559  1.1.1.2  christos       && htab->glink->size != 0
   6560      1.1  christos       && htab->elf.dynamic_sections_created)
   6561      1.1  christos     {
   6562      1.1  christos       htab->glink_pltresolve = htab->glink->size;
   6563      1.1  christos       /* Space for the branch table.  ??? We don't need entries for
   6564      1.1  christos 	 non-dynamic symbols in this table.  This case can arise with
   6565      1.1  christos 	 static ifuncs or forced local ifuncs.  */
   6566      1.1  christos       htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
   6567      1.1  christos       /* Pad out to align the start of PLTresolve.  */
   6568      1.1  christos       htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
   6569      1.1  christos 						 ? 63 : 15);
   6570      1.1  christos       htab->glink->size += GLINK_PLTRESOLVE;
   6571      1.1  christos 
   6572      1.1  christos       if (htab->params->emit_stub_syms)
   6573      1.1  christos 	{
   6574      1.1  christos 	  struct elf_link_hash_entry *sh;
   6575      1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink",
   6576  1.1.1.3  christos 				     TRUE, FALSE, FALSE);
   6577      1.1  christos 	  if (sh == NULL)
   6578      1.1  christos 	    return FALSE;
   6579      1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6580      1.1  christos 	    {
   6581      1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6582      1.1  christos 	      sh->root.u.def.section = htab->glink;
   6583      1.1  christos 	      sh->root.u.def.value = htab->glink_pltresolve;
   6584      1.1  christos 	      sh->ref_regular = 1;
   6585      1.1  christos 	      sh->def_regular = 1;
   6586      1.1  christos 	      sh->ref_regular_nonweak = 1;
   6587      1.1  christos 	      sh->forced_local = 1;
   6588      1.1  christos 	      sh->non_elf = 0;
   6589      1.1  christos 	      sh->root.linker_def = 1;
   6590      1.1  christos 	    }
   6591      1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
   6592  1.1.1.3  christos 				     TRUE, FALSE, FALSE);
   6593      1.1  christos 	  if (sh == NULL)
   6594      1.1  christos 	    return FALSE;
   6595      1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6596      1.1  christos 	    {
   6597      1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6598      1.1  christos 	      sh->root.u.def.section = htab->glink;
   6599      1.1  christos 	      sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
   6600      1.1  christos 	      sh->ref_regular = 1;
   6601      1.1  christos 	      sh->def_regular = 1;
   6602      1.1  christos 	      sh->ref_regular_nonweak = 1;
   6603      1.1  christos 	      sh->forced_local = 1;
   6604      1.1  christos 	      sh->non_elf = 0;
   6605  1.1.1.4  christos 	      sh->root.linker_def = 1;
   6606      1.1  christos 	    }
   6607      1.1  christos 	}
   6608      1.1  christos     }
   6609      1.1  christos 
   6610      1.1  christos   if (htab->glink != NULL
   6611      1.1  christos       && htab->glink->size != 0
   6612      1.1  christos       && htab->glink_eh_frame != NULL
   6613      1.1  christos       && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
   6614      1.1  christos       && _bfd_elf_eh_frame_present (info))
   6615      1.1  christos     {
   6616      1.1  christos       s = htab->glink_eh_frame;
   6617      1.1  christos       s->size = sizeof (glink_eh_frame_cie) + 20;
   6618      1.1  christos       if (bfd_link_pic (info))
   6619      1.1  christos 	{
   6620      1.1  christos 	  s->size += 4;
   6621      1.1  christos 	  if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
   6622      1.1  christos 	    s->size += 4;
   6623  1.1.1.5  christos 	}
   6624  1.1.1.5  christos     }
   6625      1.1  christos 
   6626      1.1  christos   /* We've now determined the sizes of the various dynamic sections.
   6627      1.1  christos      Allocate memory for them.  */
   6628      1.1  christos   relocs = FALSE;
   6629      1.1  christos   for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
   6630      1.1  christos     {
   6631      1.1  christos       bfd_boolean strip_section = TRUE;
   6632      1.1  christos 
   6633      1.1  christos       if ((s->flags & SEC_LINKER_CREATED) == 0)
   6634  1.1.1.5  christos 	continue;
   6635      1.1  christos 
   6636      1.1  christos       if (s == htab->elf.splt
   6637  1.1.1.5  christos 	  || s == htab->elf.sgot)
   6638      1.1  christos 	{
   6639  1.1.1.5  christos 	  /* We'd like to strip these sections if they aren't needed, but if
   6640  1.1.1.5  christos 	     we've exported dynamic symbols from them we must leave them.
   6641  1.1.1.2  christos 	     It's too late to tell BFD to get rid of the symbols.  */
   6642      1.1  christos 	  if (htab->elf.hplt != NULL)
   6643      1.1  christos 	    strip_section = FALSE;
   6644      1.1  christos 	  /* Strip this section if we don't need it; see the
   6645  1.1.1.2  christos 	     comment below.  */
   6646  1.1.1.2  christos 	}
   6647  1.1.1.2  christos       else if (s == htab->elf.iplt
   6648  1.1.1.2  christos 	       || s == htab->glink
   6649  1.1.1.2  christos 	       || s == htab->glink_eh_frame
   6650      1.1  christos 	       || s == htab->elf.sgotplt
   6651      1.1  christos 	       || s == htab->sbss
   6652      1.1  christos 	       || s == htab->elf.sdynbss
   6653      1.1  christos 	       || s == htab->elf.sdynrelro
   6654      1.1  christos 	       || s == htab->dynsbss)
   6655      1.1  christos 	{
   6656      1.1  christos 	  /* Strip these too.  */
   6657      1.1  christos 	}
   6658      1.1  christos       else if (s == htab->sdata[0].section
   6659      1.1  christos 	       || s == htab->sdata[1].section)
   6660      1.1  christos 	{
   6661      1.1  christos 	  strip_section = (s->flags & SEC_KEEP) == 0;
   6662      1.1  christos 	}
   6663      1.1  christos       else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
   6664      1.1  christos 			     ".rela"))
   6665      1.1  christos 	{
   6666      1.1  christos 	  if (s->size != 0)
   6667      1.1  christos 	    {
   6668      1.1  christos 	      /* Remember whether there are any relocation sections.  */
   6669      1.1  christos 	      relocs = TRUE;
   6670      1.1  christos 
   6671      1.1  christos 	      /* We use the reloc_count field as a counter if we need
   6672      1.1  christos 		 to copy relocs into the output file.  */
   6673      1.1  christos 	      s->reloc_count = 0;
   6674      1.1  christos 	    }
   6675      1.1  christos 	}
   6676      1.1  christos       else
   6677      1.1  christos 	{
   6678      1.1  christos 	  /* It's not one of our sections, so don't allocate space.  */
   6679      1.1  christos 	  continue;
   6680      1.1  christos 	}
   6681      1.1  christos 
   6682      1.1  christos       if (s->size == 0 && strip_section)
   6683      1.1  christos 	{
   6684      1.1  christos 	  /* If we don't need this section, strip it from the
   6685      1.1  christos 	     output file.  This is mostly to handle .rela.bss and
   6686      1.1  christos 	     .rela.plt.  We must create both sections in
   6687      1.1  christos 	     create_dynamic_sections, because they must be created
   6688      1.1  christos 	     before the linker maps input sections to output
   6689      1.1  christos 	     sections.  The linker does that before
   6690      1.1  christos 	     adjust_dynamic_symbol is called, and it is that
   6691      1.1  christos 	     function which decides whether anything needs to go
   6692      1.1  christos 	     into these sections.  */
   6693      1.1  christos 	  s->flags |= SEC_EXCLUDE;
   6694      1.1  christos 	  continue;
   6695      1.1  christos 	}
   6696      1.1  christos 
   6697      1.1  christos       if ((s->flags & SEC_HAS_CONTENTS) == 0)
   6698      1.1  christos 	continue;
   6699      1.1  christos 
   6700      1.1  christos       /* Allocate memory for the section contents.  */
   6701      1.1  christos       s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
   6702      1.1  christos       if (s->contents == NULL)
   6703  1.1.1.4  christos 	return FALSE;
   6704      1.1  christos     }
   6705      1.1  christos 
   6706      1.1  christos   if (htab->elf.dynamic_sections_created)
   6707      1.1  christos     {
   6708      1.1  christos       /* Add some entries to the .dynamic section.  We fill in the
   6709  1.1.1.5  christos 	 values later, in ppc_elf_finish_dynamic_sections, but we
   6710      1.1  christos 	 must add the entries now so that we get the correct size for
   6711      1.1  christos 	 the .dynamic section.  The DT_DEBUG entry is filled in by the
   6712      1.1  christos 	 dynamic linker and used by the debugger.  */
   6713      1.1  christos #define add_dynamic_entry(TAG, VAL) \
   6714      1.1  christos   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
   6715      1.1  christos 
   6716      1.1  christos       if (bfd_link_executable (info))
   6717      1.1  christos 	{
   6718  1.1.1.2  christos 	  if (!add_dynamic_entry (DT_DEBUG, 0))
   6719  1.1.1.2  christos 	    return FALSE;
   6720  1.1.1.2  christos 	}
   6721      1.1  christos 
   6722      1.1  christos       if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
   6723      1.1  christos 	{
   6724  1.1.1.2  christos 	  if (!add_dynamic_entry (DT_PLTGOT, 0)
   6725      1.1  christos 	      || !add_dynamic_entry (DT_PLTRELSZ, 0)
   6726      1.1  christos 	      || !add_dynamic_entry (DT_PLTREL, DT_RELA)
   6727      1.1  christos 	      || !add_dynamic_entry (DT_JMPREL, 0))
   6728      1.1  christos 	    return FALSE;
   6729      1.1  christos 	}
   6730      1.1  christos 
   6731      1.1  christos       if (htab->plt_type == PLT_NEW
   6732      1.1  christos 	  && htab->glink != NULL
   6733      1.1  christos 	  && htab->glink->size != 0)
   6734      1.1  christos 	{
   6735      1.1  christos 	  if (!add_dynamic_entry (DT_PPC_GOT, 0))
   6736      1.1  christos 	    return FALSE;
   6737      1.1  christos 	  if (!htab->params->no_tls_get_addr_opt
   6738      1.1  christos 	      && htab->tls_get_addr != NULL
   6739      1.1  christos 	      && htab->tls_get_addr->plt.plist != NULL
   6740      1.1  christos 	      && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
   6741      1.1  christos 	    return FALSE;
   6742      1.1  christos 	}
   6743      1.1  christos 
   6744      1.1  christos       if (relocs)
   6745      1.1  christos 	{
   6746      1.1  christos 	  if (!add_dynamic_entry (DT_RELA, 0)
   6747      1.1  christos 	      || !add_dynamic_entry (DT_RELASZ, 0)
   6748      1.1  christos 	      || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
   6749      1.1  christos 	    return FALSE;
   6750      1.1  christos 	}
   6751      1.1  christos 
   6752      1.1  christos       /* If any dynamic relocs apply to a read-only section, then we
   6753      1.1  christos 	 need a DT_TEXTREL entry.  */
   6754      1.1  christos       if ((info->flags & DF_TEXTREL) == 0)
   6755      1.1  christos 	elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
   6756      1.1  christos 				info);
   6757      1.1  christos 
   6758      1.1  christos       if ((info->flags & DF_TEXTREL) != 0)
   6759      1.1  christos 	{
   6760      1.1  christos 	  if (!add_dynamic_entry (DT_TEXTREL, 0))
   6761      1.1  christos 	    return FALSE;
   6762      1.1  christos 	}
   6763      1.1  christos       if (htab->is_vxworks
   6764      1.1  christos 	  && !elf_vxworks_add_dynamic_entries (output_bfd, info))
   6765      1.1  christos 	return FALSE;
   6766      1.1  christos    }
   6767      1.1  christos #undef add_dynamic_entry
   6768      1.1  christos 
   6769      1.1  christos   if (htab->glink_eh_frame != NULL
   6770      1.1  christos       && htab->glink_eh_frame->contents != NULL)
   6771      1.1  christos     {
   6772      1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   6773      1.1  christos       bfd_vma val;
   6774      1.1  christos 
   6775      1.1  christos       memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
   6776      1.1  christos       /* CIE length (rewrite in case little-endian).  */
   6777      1.1  christos       bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
   6778      1.1  christos       p += sizeof (glink_eh_frame_cie);
   6779      1.1  christos       /* FDE length.  */
   6780      1.1  christos       val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
   6781      1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   6782  1.1.1.4  christos       p += 4;
   6783      1.1  christos       /* CIE pointer.  */
   6784      1.1  christos       val = p - htab->glink_eh_frame->contents;
   6785      1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   6786      1.1  christos       p += 4;
   6787      1.1  christos       /* Offset to .glink.  Set later.  */
   6788      1.1  christos       p += 4;
   6789      1.1  christos       /* .glink size.  */
   6790      1.1  christos       bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
   6791      1.1  christos       p += 4;
   6792      1.1  christos       /* Augmentation.  */
   6793      1.1  christos       p += 1;
   6794      1.1  christos 
   6795      1.1  christos       if (bfd_link_pic (info)
   6796      1.1  christos 	  && htab->elf.dynamic_sections_created)
   6797      1.1  christos 	{
   6798      1.1  christos 	  bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
   6799      1.1  christos 	  if (adv < 64)
   6800      1.1  christos 	    *p++ = DW_CFA_advance_loc + adv;
   6801      1.1  christos 	  else if (adv < 256)
   6802      1.1  christos 	    {
   6803      1.1  christos 	      *p++ = DW_CFA_advance_loc1;
   6804      1.1  christos 	      *p++ = adv;
   6805      1.1  christos 	    }
   6806      1.1  christos 	  else if (adv < 65536)
   6807      1.1  christos 	    {
   6808      1.1  christos 	      *p++ = DW_CFA_advance_loc2;
   6809      1.1  christos 	      bfd_put_16 (htab->elf.dynobj, adv, p);
   6810      1.1  christos 	      p += 2;
   6811      1.1  christos 	    }
   6812      1.1  christos 	  else
   6813      1.1  christos 	    {
   6814      1.1  christos 	      *p++ = DW_CFA_advance_loc4;
   6815      1.1  christos 	      bfd_put_32 (htab->elf.dynobj, adv, p);
   6816      1.1  christos 	      p += 4;
   6817      1.1  christos 	    }
   6818      1.1  christos 	  *p++ = DW_CFA_register;
   6819  1.1.1.2  christos 	  *p++ = 65;
   6820  1.1.1.2  christos 	  p++;
   6821  1.1.1.2  christos 	  *p++ = DW_CFA_advance_loc + 4;
   6822  1.1.1.2  christos 	  *p++ = DW_CFA_restore_extended;
   6823  1.1.1.2  christos 	  *p++ = 65;
   6824  1.1.1.2  christos 	}
   6825  1.1.1.2  christos       BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
   6826  1.1.1.2  christos 		  == htab->glink_eh_frame->size);
   6827  1.1.1.2  christos     }
   6828  1.1.1.2  christos 
   6829  1.1.1.2  christos   return TRUE;
   6830  1.1.1.2  christos }
   6831  1.1.1.2  christos 
   6832  1.1.1.2  christos /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
   6833  1.1.1.2  christos    if it looks like nothing is using them.  */
   6834  1.1.1.2  christos 
   6835  1.1.1.2  christos static void
   6836  1.1.1.2  christos maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
   6837  1.1.1.2  christos {
   6838  1.1.1.2  christos   struct elf_link_hash_entry *sda = lsect->sym;
   6839  1.1.1.2  christos 
   6840  1.1.1.2  christos   if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
   6841  1.1.1.2  christos     {
   6842  1.1.1.2  christos       asection *s;
   6843  1.1.1.2  christos 
   6844  1.1.1.2  christos       s = bfd_get_section_by_name (output_bfd, lsect->name);
   6845  1.1.1.2  christos       if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
   6846  1.1.1.2  christos 	{
   6847  1.1.1.2  christos 	  s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
   6848  1.1.1.2  christos 	  if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
   6849  1.1.1.2  christos 	    {
   6850  1.1.1.2  christos 	      sda->def_regular = 0;
   6851  1.1.1.2  christos 	      /* This is somewhat magic.  See elf_link_output_extsym.  */
   6852  1.1.1.2  christos 	      sda->ref_dynamic = 1;
   6853  1.1.1.2  christos 	      sda->forced_local = 0;
   6854  1.1.1.2  christos 	    }
   6855  1.1.1.2  christos 	}
   6856  1.1.1.2  christos     }
   6857  1.1.1.2  christos }
   6858  1.1.1.2  christos 
   6859      1.1  christos void
   6860      1.1  christos ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
   6861      1.1  christos {
   6862      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   6863      1.1  christos 
   6864      1.1  christos   if (htab != NULL)
   6865      1.1  christos     {
   6866      1.1  christos       maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
   6867      1.1  christos       maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
   6868      1.1  christos     }
   6869      1.1  christos }
   6870      1.1  christos 
   6871      1.1  christos 
   6872      1.1  christos /* Return TRUE if symbol should be hashed in the `.gnu.hash' section.  */
   6873      1.1  christos 
   6874      1.1  christos static bfd_boolean
   6875      1.1  christos ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
   6876      1.1  christos {
   6877      1.1  christos   if (h->plt.plist != NULL
   6878      1.1  christos       && !h->def_regular
   6879      1.1  christos       && (!h->pointer_equality_needed
   6880      1.1  christos 	  || !h->ref_regular_nonweak))
   6881      1.1  christos     return FALSE;
   6882      1.1  christos 
   6883  1.1.1.2  christos   return _bfd_elf_hash_symbol (h);
   6884      1.1  christos }
   6885      1.1  christos 
   6886      1.1  christos #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
   6888      1.1  christos 
   6889      1.1  christos /* Relaxation trampolines.  r12 is available for clobbering (r11, is
   6890      1.1  christos    used for some functions that are allowed to break the ABI).  */
   6891      1.1  christos static const int shared_stub_entry[] =
   6892      1.1  christos   {
   6893      1.1  christos     0x7c0802a6, /* mflr 0 */
   6894      1.1  christos     0x429f0005, /* bcl 20, 31, .Lxxx */
   6895      1.1  christos     0x7d8802a6, /* mflr 12 */
   6896      1.1  christos     0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
   6897  1.1.1.2  christos     0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
   6898  1.1.1.2  christos     0x7c0803a6, /* mtlr 0 */
   6899  1.1.1.2  christos     0x7d8903a6, /* mtctr 12 */
   6900  1.1.1.3  christos     0x4e800420, /* bctr */
   6901  1.1.1.2  christos   };
   6902  1.1.1.2  christos 
   6903  1.1.1.2  christos static const int stub_entry[] =
   6904  1.1.1.2  christos   {
   6905  1.1.1.2  christos     0x3d800000, /* lis 12,xxx@ha */
   6906  1.1.1.2  christos     0x398c0000, /* addi 12,12,xxx@l */
   6907  1.1.1.2  christos     0x7d8903a6, /* mtctr 12 */
   6908      1.1  christos     0x4e800420, /* bctr */
   6909      1.1  christos   };
   6910      1.1  christos 
   6911      1.1  christos struct ppc_elf_relax_info
   6912      1.1  christos {
   6913      1.1  christos   unsigned int workaround_size;
   6914  1.1.1.3  christos   unsigned int picfixup_size;
   6915      1.1  christos };
   6916  1.1.1.3  christos 
   6917      1.1  christos /* This function implements long branch trampolines, and the ppc476
   6918      1.1  christos    icache bug workaround.  Any section needing trampolines or patch
   6919      1.1  christos    space for the workaround has its size extended so that we can
   6920      1.1  christos    add trampolines at the end of the section.  */
   6921      1.1  christos 
   6922      1.1  christos static bfd_boolean
   6923      1.1  christos ppc_elf_relax_section (bfd *abfd,
   6924      1.1  christos 		       asection *isec,
   6925      1.1  christos 		       struct bfd_link_info *link_info,
   6926      1.1  christos 		       bfd_boolean *again)
   6927      1.1  christos {
   6928  1.1.1.2  christos   struct one_branch_fixup
   6929  1.1.1.3  christos   {
   6930  1.1.1.2  christos     struct one_branch_fixup *next;
   6931      1.1  christos     asection *tsec;
   6932  1.1.1.2  christos     /* Final link, can use the symbol offset.  For a
   6933      1.1  christos        relocatable link we use the symbol's index.  */
   6934  1.1.1.3  christos     bfd_vma toff;
   6935      1.1  christos     bfd_vma trampoff;
   6936      1.1  christos   };
   6937      1.1  christos 
   6938      1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   6939      1.1  christos   bfd_byte *contents = NULL;
   6940  1.1.1.2  christos   Elf_Internal_Sym *isymbuf = NULL;
   6941      1.1  christos   Elf_Internal_Rela *internal_relocs = NULL;
   6942      1.1  christos   Elf_Internal_Rela *irel, *irelend = NULL;
   6943  1.1.1.2  christos   struct one_branch_fixup *branch_fixups = NULL;
   6944  1.1.1.2  christos   struct ppc_elf_relax_info *relax_info = NULL;
   6945      1.1  christos   unsigned changes = 0;
   6946      1.1  christos   bfd_boolean workaround_change;
   6947      1.1  christos   struct ppc_elf_link_hash_table *htab;
   6948      1.1  christos   bfd_size_type trampbase, trampoff, newsize, picfixup_size;
   6949      1.1  christos   asection *got2;
   6950  1.1.1.4  christos   bfd_boolean maybe_pasted;
   6951  1.1.1.2  christos 
   6952  1.1.1.2  christos   *again = FALSE;
   6953  1.1.1.2  christos 
   6954  1.1.1.2  christos   /* No need to do anything with non-alloc or non-code sections.  */
   6955  1.1.1.2  christos   if ((isec->flags & SEC_ALLOC) == 0
   6956  1.1.1.2  christos       || (isec->flags & SEC_CODE) == 0
   6957  1.1.1.2  christos       || (isec->flags & SEC_LINKER_CREATED) != 0
   6958  1.1.1.2  christos       || isec->size < 4)
   6959  1.1.1.2  christos     return TRUE;
   6960  1.1.1.2  christos 
   6961  1.1.1.2  christos   /* We cannot represent the required PIC relocs in the output, so don't
   6962  1.1.1.2  christos      do anything.  The linker doesn't support mixing -shared and -r
   6963  1.1.1.2  christos      anyway.  */
   6964  1.1.1.2  christos   if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
   6965  1.1.1.2  christos     return TRUE;
   6966  1.1.1.3  christos 
   6967  1.1.1.3  christos   htab = ppc_elf_hash_table (link_info);
   6968  1.1.1.2  christos   if (htab == NULL)
   6969  1.1.1.2  christos     return TRUE;
   6970  1.1.1.2  christos 
   6971  1.1.1.2  christos   isec->size = (isec->size + 3) & -4;
   6972  1.1.1.2  christos   if (isec->rawsize == 0)
   6973  1.1.1.2  christos     isec->rawsize = isec->size;
   6974  1.1.1.2  christos   trampbase = isec->size;
   6975  1.1.1.2  christos 
   6976  1.1.1.2  christos   BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
   6977  1.1.1.2  christos 	      || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
   6978  1.1.1.2  christos   isec->sec_info_type = SEC_INFO_TYPE_TARGET;
   6979      1.1  christos 
   6980      1.1  christos   if (htab->params->ppc476_workaround
   6981      1.1  christos       || htab->params->pic_fixup > 0)
   6982      1.1  christos     {
   6983  1.1.1.2  christos       if (elf_section_data (isec)->sec_info == NULL)
   6984  1.1.1.2  christos 	{
   6985      1.1  christos 	  elf_section_data (isec)->sec_info
   6986      1.1  christos 	    = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
   6987      1.1  christos 	  if (elf_section_data (isec)->sec_info == NULL)
   6988  1.1.1.3  christos 	    return FALSE;
   6989  1.1.1.3  christos 	}
   6990  1.1.1.3  christos       relax_info = elf_section_data (isec)->sec_info;
   6991      1.1  christos       trampbase -= relax_info->workaround_size;
   6992  1.1.1.2  christos     }
   6993  1.1.1.2  christos 
   6994      1.1  christos   maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
   6995  1.1.1.2  christos 		  || strcmp (isec->output_section->name, ".fini") == 0);
   6996  1.1.1.2  christos   /* Space for a branch around any trampolines.  */
   6997  1.1.1.2  christos   trampoff = trampbase;
   6998  1.1.1.2  christos   if (maybe_pasted && trampbase == isec->rawsize)
   6999      1.1  christos     trampoff += 4;
   7000      1.1  christos 
   7001  1.1.1.2  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   7002      1.1  christos   picfixup_size = 0;
   7003  1.1.1.2  christos   if (htab->params->branch_trampolines
   7004  1.1.1.2  christos       || htab->params->pic_fixup > 0)
   7005      1.1  christos     {
   7006  1.1.1.2  christos       /* Get a copy of the native relocations.  */
   7007  1.1.1.2  christos       if (isec->reloc_count != 0)
   7008  1.1.1.2  christos 	{
   7009  1.1.1.3  christos 	  internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
   7010  1.1.1.2  christos 						       link_info->keep_memory);
   7011  1.1.1.3  christos 	  if (internal_relocs == NULL)
   7012  1.1.1.2  christos 	    goto error_return;
   7013  1.1.1.2  christos 	}
   7014  1.1.1.2  christos 
   7015  1.1.1.2  christos       got2 = bfd_get_section_by_name (abfd, ".got2");
   7016  1.1.1.2  christos 
   7017  1.1.1.2  christos       irelend = internal_relocs + isec->reloc_count;
   7018  1.1.1.2  christos       for (irel = internal_relocs; irel < irelend; irel++)
   7019  1.1.1.2  christos 	{
   7020  1.1.1.2  christos 	  unsigned long r_type = ELF32_R_TYPE (irel->r_info);
   7021  1.1.1.2  christos 	  bfd_vma toff, roff;
   7022  1.1.1.2  christos 	  asection *tsec;
   7023  1.1.1.2  christos 	  struct one_branch_fixup *f;
   7024  1.1.1.2  christos 	  size_t insn_offset = 0;
   7025      1.1  christos 	  bfd_vma max_branch_offset = 0, val;
   7026  1.1.1.2  christos 	  bfd_byte *hit_addr;
   7027  1.1.1.2  christos 	  unsigned long t0;
   7028  1.1.1.2  christos 	  struct elf_link_hash_entry *h;
   7029  1.1.1.2  christos 	  struct plt_entry **plist;
   7030  1.1.1.2  christos 	  unsigned char sym_type;
   7031      1.1  christos 
   7032  1.1.1.3  christos 	  switch (r_type)
   7033  1.1.1.3  christos 	    {
   7034  1.1.1.3  christos 	    case R_PPC_REL24:
   7035  1.1.1.3  christos 	    case R_PPC_LOCAL24PC:
   7036  1.1.1.3  christos 	    case R_PPC_PLTREL24:
   7037  1.1.1.2  christos 	      max_branch_offset = 1 << 25;
   7038  1.1.1.2  christos 	      break;
   7039      1.1  christos 
   7040  1.1.1.2  christos 	    case R_PPC_REL14:
   7041  1.1.1.2  christos 	    case R_PPC_REL14_BRTAKEN:
   7042  1.1.1.2  christos 	    case R_PPC_REL14_BRNTAKEN:
   7043  1.1.1.2  christos 	      max_branch_offset = 1 << 15;
   7044      1.1  christos 	      break;
   7045  1.1.1.2  christos 
   7046  1.1.1.2  christos 	    case R_PPC_ADDR16_HA:
   7047  1.1.1.2  christos 	      if (htab->params->pic_fixup > 0)
   7048  1.1.1.2  christos 		break;
   7049  1.1.1.2  christos 	      continue;
   7050  1.1.1.2  christos 
   7051  1.1.1.2  christos 	    default:
   7052  1.1.1.2  christos 	      continue;
   7053  1.1.1.2  christos 	    }
   7054  1.1.1.2  christos 
   7055  1.1.1.2  christos 	  /* Get the value of the symbol referred to by the reloc.  */
   7056  1.1.1.2  christos 	  h = NULL;
   7057  1.1.1.2  christos 	  if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
   7058  1.1.1.2  christos 	    {
   7059  1.1.1.2  christos 	      /* A local symbol.  */
   7060  1.1.1.2  christos 	      Elf_Internal_Sym *isym;
   7061  1.1.1.2  christos 
   7062  1.1.1.2  christos 	      /* Read this BFD's local symbols.  */
   7063  1.1.1.2  christos 	      if (isymbuf == NULL)
   7064  1.1.1.2  christos 		{
   7065  1.1.1.2  christos 		  isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
   7066  1.1.1.2  christos 		  if (isymbuf == NULL)
   7067  1.1.1.2  christos 		    isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
   7068  1.1.1.2  christos 						    symtab_hdr->sh_info, 0,
   7069  1.1.1.2  christos 						    NULL, NULL, NULL);
   7070  1.1.1.2  christos 		  if (isymbuf == 0)
   7071      1.1  christos 		    goto error_return;
   7072      1.1  christos 		}
   7073  1.1.1.2  christos 	      isym = isymbuf + ELF32_R_SYM (irel->r_info);
   7074  1.1.1.2  christos 	      if (isym->st_shndx == SHN_UNDEF)
   7075  1.1.1.2  christos 		tsec = bfd_und_section_ptr;
   7076      1.1  christos 	      else if (isym->st_shndx == SHN_ABS)
   7077  1.1.1.2  christos 		tsec = bfd_abs_section_ptr;
   7078  1.1.1.2  christos 	      else if (isym->st_shndx == SHN_COMMON)
   7079      1.1  christos 		tsec = bfd_com_section_ptr;
   7080  1.1.1.2  christos 	      else
   7081  1.1.1.2  christos 		tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
   7082  1.1.1.2  christos 
   7083      1.1  christos 	      toff = isym->st_value;
   7084  1.1.1.2  christos 	      sym_type = ELF_ST_TYPE (isym->st_info);
   7085  1.1.1.2  christos 	    }
   7086      1.1  christos 	  else
   7087  1.1.1.2  christos 	    {
   7088  1.1.1.2  christos 	      /* Global symbol handling.  */
   7089      1.1  christos 	      unsigned long indx;
   7090  1.1.1.2  christos 
   7091  1.1.1.2  christos 	      indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
   7092      1.1  christos 	      h = elf_sym_hashes (abfd)[indx];
   7093  1.1.1.2  christos 
   7094  1.1.1.4  christos 	      while (h->root.type == bfd_link_hash_indirect
   7095      1.1  christos 		     || h->root.type == bfd_link_hash_warning)
   7096  1.1.1.2  christos 		h = (struct elf_link_hash_entry *) h->root.u.i.link;
   7097  1.1.1.2  christos 
   7098      1.1  christos 	      if (h->root.type == bfd_link_hash_defined
   7099  1.1.1.2  christos 		  || h->root.type == bfd_link_hash_defweak)
   7100  1.1.1.2  christos 		{
   7101  1.1.1.2  christos 		  tsec = h->root.u.def.section;
   7102  1.1.1.4  christos 		  toff = h->root.u.def.value;
   7103  1.1.1.2  christos 		}
   7104  1.1.1.2  christos 	      else if (h->root.type == bfd_link_hash_undefined
   7105  1.1.1.2  christos 		       || h->root.type == bfd_link_hash_undefweak)
   7106  1.1.1.2  christos 		{
   7107  1.1.1.2  christos 		  tsec = bfd_und_section_ptr;
   7108  1.1.1.2  christos 		  toff = bfd_link_relocatable (link_info) ? indx : 0;
   7109  1.1.1.2  christos 		}
   7110  1.1.1.2  christos 	      else
   7111  1.1.1.2  christos 		continue;
   7112  1.1.1.2  christos 
   7113  1.1.1.2  christos 	      /* If this branch is to __tls_get_addr then we may later
   7114  1.1.1.2  christos 		 optimise away the call.  We won't be needing a long-
   7115  1.1.1.2  christos 		 branch stub in that case.  */
   7116  1.1.1.2  christos 	      if (bfd_link_executable (link_info)
   7117      1.1  christos 		  && h == htab->tls_get_addr
   7118  1.1.1.2  christos 		  && irel != internal_relocs)
   7119  1.1.1.2  christos 		{
   7120  1.1.1.2  christos 		  unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
   7121  1.1.1.2  christos 		  unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
   7122  1.1.1.2  christos 		  unsigned int tls_mask = 0;
   7123  1.1.1.2  christos 
   7124  1.1.1.2  christos 		  /* The previous reloc should be one of R_PPC_TLSGD or
   7125  1.1.1.2  christos 		     R_PPC_TLSLD, or for older object files, a reloc
   7126  1.1.1.2  christos 		     on the __tls_get_addr arg setup insn.  Get tls
   7127  1.1.1.2  christos 		     mask bits from the symbol on that reloc.  */
   7128  1.1.1.2  christos 		  if (t_symndx < symtab_hdr->sh_info)
   7129  1.1.1.2  christos 		    {
   7130  1.1.1.2  christos 		      bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   7131      1.1  christos 
   7132  1.1.1.2  christos 		      if (local_got_offsets != NULL)
   7133  1.1.1.2  christos 			{
   7134  1.1.1.2  christos 			  struct plt_entry **local_plt = (struct plt_entry **)
   7135      1.1  christos 			    (local_got_offsets + symtab_hdr->sh_info);
   7136  1.1.1.2  christos 			  char *lgot_masks = (char *)
   7137  1.1.1.2  christos 			    (local_plt + symtab_hdr->sh_info);
   7138  1.1.1.2  christos 			  tls_mask = lgot_masks[t_symndx];
   7139      1.1  christos 			}
   7140  1.1.1.2  christos 		    }
   7141  1.1.1.2  christos 		  else
   7142  1.1.1.2  christos 		    {
   7143  1.1.1.2  christos 		      struct elf_link_hash_entry *th
   7144  1.1.1.2  christos 			= elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
   7145  1.1.1.2  christos 
   7146  1.1.1.2  christos 		      while (th->root.type == bfd_link_hash_indirect
   7147  1.1.1.2  christos 			     || th->root.type == bfd_link_hash_warning)
   7148  1.1.1.2  christos 			th = (struct elf_link_hash_entry *) th->root.u.i.link;
   7149  1.1.1.2  christos 
   7150  1.1.1.2  christos 		      tls_mask
   7151  1.1.1.2  christos 			= ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
   7152  1.1.1.2  christos 		    }
   7153      1.1  christos 
   7154  1.1.1.2  christos 		  /* The mask bits tell us if the call will be
   7155  1.1.1.2  christos 		     optimised away.  */
   7156      1.1  christos 		  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
   7157  1.1.1.3  christos 		      && (t_rtype == R_PPC_TLSGD
   7158  1.1.1.3  christos 			  || t_rtype == R_PPC_GOT_TLSGD16
   7159  1.1.1.3  christos 			  || t_rtype == R_PPC_GOT_TLSGD16_LO))
   7160  1.1.1.3  christos 		    continue;
   7161  1.1.1.3  christos 		  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
   7162  1.1.1.3  christos 		      && (t_rtype == R_PPC_TLSLD
   7163  1.1.1.3  christos 			  || t_rtype == R_PPC_GOT_TLSLD16
   7164  1.1.1.3  christos 			  || t_rtype == R_PPC_GOT_TLSLD16_LO))
   7165  1.1.1.3  christos 		    continue;
   7166  1.1.1.3  christos 		}
   7167  1.1.1.3  christos 
   7168  1.1.1.2  christos 	      sym_type = h->type;
   7169  1.1.1.2  christos 	    }
   7170  1.1.1.2  christos 
   7171  1.1.1.2  christos 	  if (r_type == R_PPC_ADDR16_HA)
   7172  1.1.1.2  christos 	    {
   7173  1.1.1.2  christos 	      if (h != NULL
   7174  1.1.1.2  christos 		  && !h->def_regular
   7175  1.1.1.2  christos 		  && h->protected_def
   7176  1.1.1.2  christos 		  && ppc_elf_hash_entry (h)->has_addr16_ha
   7177  1.1.1.2  christos 		  && ppc_elf_hash_entry (h)->has_addr16_lo)
   7178  1.1.1.2  christos 		picfixup_size += 12;
   7179  1.1.1.2  christos 	      continue;
   7180  1.1.1.2  christos 	    }
   7181  1.1.1.2  christos 
   7182  1.1.1.2  christos 	  /* The condition here under which we call find_plt_ent must
   7183  1.1.1.2  christos 	     match that in relocate_section.  If we call find_plt_ent here
   7184  1.1.1.2  christos 	     but not in relocate_section, or vice versa, then the branch
   7185  1.1.1.2  christos 	     destination used here may be incorrect.  */
   7186  1.1.1.2  christos 	  plist = NULL;
   7187  1.1.1.2  christos 	  if (h != NULL)
   7188  1.1.1.2  christos 	    {
   7189  1.1.1.2  christos 	      /* We know is_branch_reloc (r_type) is true.  */
   7190  1.1.1.2  christos 	      if (h->type == STT_GNU_IFUNC
   7191  1.1.1.2  christos 		  || r_type == R_PPC_PLTREL24)
   7192  1.1.1.2  christos 		plist = &h->plt.plist;
   7193  1.1.1.4  christos 	    }
   7194  1.1.1.2  christos 	  else if (sym_type == STT_GNU_IFUNC
   7195  1.1.1.2  christos 		   && elf_local_got_offsets (abfd) != NULL)
   7196  1.1.1.2  christos 	    {
   7197  1.1.1.2  christos 	      bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   7198  1.1.1.2  christos 	      struct plt_entry **local_plt = (struct plt_entry **)
   7199  1.1.1.2  christos 		(local_got_offsets + symtab_hdr->sh_info);
   7200  1.1.1.2  christos 	      plist = local_plt + ELF32_R_SYM (irel->r_info);
   7201  1.1.1.2  christos 	    }
   7202  1.1.1.2  christos 	  if (plist != NULL)
   7203  1.1.1.2  christos 	    {
   7204  1.1.1.2  christos 	      bfd_vma addend = 0;
   7205  1.1.1.2  christos 	      struct plt_entry *ent;
   7206  1.1.1.2  christos 
   7207  1.1.1.2  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
   7208  1.1.1.5  christos 		addend = irel->r_addend;
   7209  1.1.1.2  christos 	      ent = find_plt_ent (plist, got2, addend);
   7210  1.1.1.2  christos 	      if (ent != NULL)
   7211  1.1.1.2  christos 		{
   7212  1.1.1.2  christos 		  if (htab->plt_type == PLT_NEW
   7213  1.1.1.2  christos 		      || h == NULL
   7214  1.1.1.2  christos 		      || !htab->elf.dynamic_sections_created
   7215  1.1.1.2  christos 		      || h->dynindx == -1)
   7216  1.1.1.2  christos 		    {
   7217  1.1.1.2  christos 		      tsec = htab->glink;
   7218      1.1  christos 		      toff = ent->glink_offset;
   7219      1.1  christos 		    }
   7220  1.1.1.2  christos 		  else
   7221  1.1.1.2  christos 		    {
   7222  1.1.1.2  christos 		      tsec = htab->elf.splt;
   7223  1.1.1.2  christos 		      toff = ent->plt.offset;
   7224  1.1.1.2  christos 		    }
   7225  1.1.1.2  christos 		}
   7226  1.1.1.2  christos 	    }
   7227  1.1.1.2  christos 
   7228  1.1.1.2  christos 	  /* If the branch and target are in the same section, you have
   7229  1.1.1.2  christos 	     no hope of adding stubs.  We'll error out later should the
   7230  1.1.1.2  christos 	     branch overflow.  */
   7231  1.1.1.2  christos 	  if (tsec == isec)
   7232  1.1.1.2  christos 	    continue;
   7233  1.1.1.2  christos 
   7234  1.1.1.2  christos 	  /* There probably isn't any reason to handle symbols in
   7235  1.1.1.2  christos 	     SEC_MERGE sections;  SEC_MERGE doesn't seem a likely
   7236  1.1.1.2  christos 	     attribute for a code section, and we are only looking at
   7237  1.1.1.2  christos 	     branches.  However, implement it correctly here as a
   7238  1.1.1.2  christos 	     reference for other target relax_section functions.  */
   7239  1.1.1.2  christos 	  if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
   7240  1.1.1.2  christos 	    {
   7241  1.1.1.2  christos 	      /* At this stage in linking, no SEC_MERGE symbol has been
   7242  1.1.1.2  christos 		 adjusted, so all references to such symbols need to be
   7243  1.1.1.2  christos 		 passed through _bfd_merged_section_offset.  (Later, in
   7244  1.1.1.2  christos 		 relocate_section, all SEC_MERGE symbols *except* for
   7245  1.1.1.2  christos 		 section symbols have been adjusted.)
   7246  1.1.1.2  christos 
   7247  1.1.1.2  christos 		 gas may reduce relocations against symbols in SEC_MERGE
   7248  1.1.1.2  christos 		 sections to a relocation against the section symbol when
   7249  1.1.1.2  christos 		 the original addend was zero.  When the reloc is against
   7250      1.1  christos 		 a section symbol we should include the addend in the
   7251  1.1.1.2  christos 		 offset passed to _bfd_merged_section_offset, since the
   7252  1.1.1.2  christos 		 location of interest is the original symbol.  On the
   7253  1.1.1.2  christos 		 other hand, an access to "sym+addend" where "sym" is not
   7254  1.1.1.2  christos 		 a section symbol should not include the addend;  Such an
   7255  1.1.1.2  christos 		 access is presumed to be an offset from "sym";  The
   7256  1.1.1.2  christos 		 location of interest is just "sym".  */
   7257      1.1  christos 	      if (sym_type == STT_SECTION)
   7258  1.1.1.2  christos 		toff += irel->r_addend;
   7259  1.1.1.4  christos 
   7260  1.1.1.2  christos 	      toff
   7261  1.1.1.2  christos 		= _bfd_merged_section_offset (abfd, &tsec,
   7262  1.1.1.2  christos 					      elf_section_data (tsec)->sec_info,
   7263  1.1.1.2  christos 					      toff);
   7264      1.1  christos 
   7265      1.1  christos 	      if (sym_type != STT_SECTION)
   7266  1.1.1.2  christos 		toff += irel->r_addend;
   7267  1.1.1.2  christos 	    }
   7268  1.1.1.2  christos 	  /* PLTREL24 addends are special.  */
   7269  1.1.1.2  christos 	  else if (r_type != R_PPC_PLTREL24)
   7270  1.1.1.4  christos 	    toff += irel->r_addend;
   7271  1.1.1.2  christos 
   7272  1.1.1.2  christos 	  /* Attempted -shared link of non-pic code loses.  */
   7273  1.1.1.2  christos 	  if ((!bfd_link_relocatable (link_info)
   7274  1.1.1.2  christos 	       && tsec == bfd_und_section_ptr)
   7275  1.1.1.2  christos 	      || tsec->output_section == NULL
   7276  1.1.1.2  christos 	      || (tsec->owner != NULL
   7277  1.1.1.2  christos 		  && (tsec->owner->flags & BFD_PLUGIN) != 0))
   7278  1.1.1.2  christos 	    continue;
   7279  1.1.1.2  christos 
   7280  1.1.1.2  christos 	  roff = irel->r_offset;
   7281  1.1.1.2  christos 
   7282      1.1  christos 	  /* If the branch is in range, no need to do anything.  */
   7283  1.1.1.2  christos 	  if (tsec != bfd_und_section_ptr
   7284  1.1.1.2  christos 	      && (!bfd_link_relocatable (link_info)
   7285  1.1.1.3  christos 		  /* A relocatable link may have sections moved during
   7286  1.1.1.2  christos 		     final link, so do not presume they remain in range.  */
   7287  1.1.1.2  christos 		  || tsec->output_section == isec->output_section))
   7288  1.1.1.2  christos 	    {
   7289  1.1.1.2  christos 	      bfd_vma symaddr, reladdr;
   7290      1.1  christos 
   7291  1.1.1.2  christos 	      symaddr = tsec->output_section->vma + tsec->output_offset + toff;
   7292  1.1.1.2  christos 	      reladdr = isec->output_section->vma + isec->output_offset + roff;
   7293      1.1  christos 	      if (symaddr - reladdr + max_branch_offset
   7294  1.1.1.2  christos 		  < 2 * max_branch_offset)
   7295  1.1.1.2  christos 		continue;
   7296  1.1.1.2  christos 	    }
   7297  1.1.1.2  christos 
   7298  1.1.1.2  christos 	  /* Look for an existing fixup to this address.  */
   7299      1.1  christos 	  for (f = branch_fixups; f ; f = f->next)
   7300  1.1.1.4  christos 	    if (f->tsec == tsec && f->toff == toff)
   7301  1.1.1.2  christos 	      break;
   7302  1.1.1.2  christos 
   7303  1.1.1.2  christos 	  if (f == NULL)
   7304  1.1.1.2  christos 	    {
   7305  1.1.1.2  christos 	      size_t size;
   7306  1.1.1.2  christos 	      unsigned long stub_rtype;
   7307  1.1.1.2  christos 
   7308  1.1.1.2  christos 	      val = trampoff - roff;
   7309  1.1.1.2  christos 	      if (val >= max_branch_offset)
   7310  1.1.1.2  christos 		/* Oh dear, we can't reach a trampoline.  Don't try to add
   7311  1.1.1.5  christos 		   one.  We'll report an error later.  */
   7312  1.1.1.2  christos 		continue;
   7313  1.1.1.2  christos 
   7314  1.1.1.2  christos 	      if (bfd_link_pic (link_info))
   7315  1.1.1.2  christos 		{
   7316  1.1.1.2  christos 		  size = 4 * ARRAY_SIZE (shared_stub_entry);
   7317  1.1.1.2  christos 		  insn_offset = 12;
   7318      1.1  christos 		}
   7319  1.1.1.2  christos 	      else
   7320  1.1.1.2  christos 		{
   7321  1.1.1.2  christos 		  size = 4 * ARRAY_SIZE (stub_entry);
   7322  1.1.1.2  christos 		  insn_offset = 0;
   7323  1.1.1.2  christos 		}
   7324  1.1.1.2  christos 	      stub_rtype = R_PPC_RELAX;
   7325  1.1.1.2  christos 	      if (tsec == htab->elf.splt
   7326  1.1.1.2  christos 		  || tsec == htab->glink)
   7327  1.1.1.2  christos 		{
   7328  1.1.1.2  christos 		  stub_rtype = R_PPC_RELAX_PLT;
   7329  1.1.1.2  christos 		  if (r_type == R_PPC_PLTREL24)
   7330  1.1.1.3  christos 		    stub_rtype = R_PPC_RELAX_PLTREL24;
   7331  1.1.1.2  christos 		}
   7332  1.1.1.2  christos 
   7333  1.1.1.2  christos 	      /* Hijack the old relocation.  Since we need two
   7334  1.1.1.3  christos 		 relocations for this use a "composite" reloc.  */
   7335      1.1  christos 	      irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
   7336  1.1.1.2  christos 					   stub_rtype);
   7337  1.1.1.2  christos 	      irel->r_offset = trampoff + insn_offset;
   7338  1.1.1.2  christos 	      if (r_type == R_PPC_PLTREL24
   7339      1.1  christos 		  && stub_rtype != R_PPC_RELAX_PLTREL24)
   7340      1.1  christos 		irel->r_addend = 0;
   7341  1.1.1.2  christos 
   7342  1.1.1.2  christos 	      /* Record the fixup so we don't do it again this section.  */
   7343  1.1.1.2  christos 	      f = bfd_malloc (sizeof (*f));
   7344  1.1.1.2  christos 	      f->next = branch_fixups;
   7345  1.1.1.2  christos 	      f->tsec = tsec;
   7346  1.1.1.2  christos 	      f->toff = toff;
   7347  1.1.1.2  christos 	      f->trampoff = trampoff;
   7348  1.1.1.2  christos 	      branch_fixups = f;
   7349  1.1.1.2  christos 
   7350  1.1.1.2  christos 	      trampoff += size;
   7351  1.1.1.2  christos 	      changes++;
   7352  1.1.1.2  christos 	    }
   7353  1.1.1.2  christos 	  else
   7354  1.1.1.2  christos 	    {
   7355      1.1  christos 	      val = f->trampoff - roff;
   7356  1.1.1.2  christos 	      if (val >= max_branch_offset)
   7357      1.1  christos 		continue;
   7358      1.1  christos 
   7359      1.1  christos 	      /* Nop out the reloc, since we're finalizing things here.  */
   7360  1.1.1.2  christos 	      irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7361  1.1.1.2  christos 	    }
   7362  1.1.1.2  christos 
   7363  1.1.1.2  christos 	  /* Get the section contents.  */
   7364  1.1.1.2  christos 	  if (contents == NULL)
   7365  1.1.1.2  christos 	    {
   7366  1.1.1.2  christos 	      /* Get cached copy if it exists.  */
   7367  1.1.1.2  christos 	      if (elf_section_data (isec)->this_hdr.contents != NULL)
   7368  1.1.1.2  christos 		contents = elf_section_data (isec)->this_hdr.contents;
   7369  1.1.1.2  christos 	      /* Go get them off disk.  */
   7370  1.1.1.2  christos 	      else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
   7371  1.1.1.2  christos 		goto error_return;
   7372      1.1  christos 	    }
   7373  1.1.1.2  christos 
   7374  1.1.1.2  christos 	  /* Fix up the existing branch to hit the trampoline.  */
   7375  1.1.1.2  christos 	  hit_addr = contents + roff;
   7376  1.1.1.2  christos 	  switch (r_type)
   7377  1.1.1.2  christos 	    {
   7378  1.1.1.2  christos 	    case R_PPC_REL24:
   7379  1.1.1.2  christos 	    case R_PPC_LOCAL24PC:
   7380  1.1.1.2  christos 	    case R_PPC_PLTREL24:
   7381  1.1.1.2  christos 	      t0 = bfd_get_32 (abfd, hit_addr);
   7382      1.1  christos 	      t0 &= ~0x3fffffc;
   7383      1.1  christos 	      t0 |= val & 0x3fffffc;
   7384  1.1.1.3  christos 	      bfd_put_32 (abfd, t0, hit_addr);
   7385      1.1  christos 	      break;
   7386  1.1.1.3  christos 
   7387  1.1.1.3  christos 	    case R_PPC_REL14:
   7388      1.1  christos 	    case R_PPC_REL14_BRTAKEN:
   7389      1.1  christos 	    case R_PPC_REL14_BRNTAKEN:
   7390  1.1.1.2  christos 	      t0 = bfd_get_32 (abfd, hit_addr);
   7391      1.1  christos 	      t0 &= ~0xfffc;
   7392  1.1.1.2  christos 	      t0 |= val & 0xfffc;
   7393  1.1.1.2  christos 	      bfd_put_32 (abfd, t0, hit_addr);
   7394  1.1.1.2  christos 	      break;
   7395  1.1.1.4  christos 	    }
   7396  1.1.1.2  christos 	}
   7397  1.1.1.2  christos 
   7398  1.1.1.2  christos       while (branch_fixups != NULL)
   7399  1.1.1.2  christos 	{
   7400  1.1.1.2  christos 	  struct one_branch_fixup *f = branch_fixups;
   7401  1.1.1.2  christos 	  branch_fixups = branch_fixups->next;
   7402  1.1.1.2  christos 	  free (f);
   7403  1.1.1.2  christos 	}
   7404  1.1.1.2  christos     }
   7405  1.1.1.2  christos 
   7406  1.1.1.2  christos   workaround_change = FALSE;
   7407  1.1.1.2  christos   newsize = trampoff;
   7408  1.1.1.2  christos   if (htab->params->ppc476_workaround
   7409  1.1.1.2  christos       && (!bfd_link_relocatable (link_info)
   7410  1.1.1.2  christos 	  || isec->output_section->alignment_power >= htab->params->pagesize_p2))
   7411  1.1.1.2  christos     {
   7412  1.1.1.2  christos       bfd_vma addr, end_addr;
   7413  1.1.1.2  christos       unsigned int crossings;
   7414  1.1.1.2  christos       bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   7415  1.1.1.2  christos 
   7416  1.1.1.2  christos       addr = isec->output_section->vma + isec->output_offset;
   7417  1.1.1.2  christos       end_addr = addr + trampoff;
   7418  1.1.1.2  christos       addr &= -pagesize;
   7419  1.1.1.2  christos       crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
   7420      1.1  christos       if (crossings != 0)
   7421  1.1.1.2  christos 	{
   7422      1.1  christos 	  /* Keep space aligned, to ensure the patch code itself does
   7423      1.1  christos 	     not cross a page.  Don't decrease size calculated on a
   7424  1.1.1.3  christos 	     previous pass as otherwise we might never settle on a layout.  */
   7425  1.1.1.3  christos 	  newsize = 15 - ((end_addr - 1) & 15);
   7426  1.1.1.3  christos 	  newsize += crossings * 16;
   7427  1.1.1.3  christos 	  if (relax_info->workaround_size < newsize)
   7428  1.1.1.3  christos 	    {
   7429  1.1.1.3  christos 	      relax_info->workaround_size = newsize;
   7430  1.1.1.3  christos 	      workaround_change = TRUE;
   7431  1.1.1.3  christos 	    }
   7432  1.1.1.3  christos 	  /* Ensure relocate_section is called.  */
   7433  1.1.1.2  christos 	  isec->flags |= SEC_RELOC;
   7434  1.1.1.2  christos 	}
   7435      1.1  christos       newsize = trampoff + relax_info->workaround_size;
   7436      1.1  christos     }
   7437      1.1  christos 
   7438      1.1  christos   if (htab->params->pic_fixup > 0)
   7439      1.1  christos     {
   7440      1.1  christos       picfixup_size -= relax_info->picfixup_size;
   7441      1.1  christos       if (picfixup_size != 0)
   7442      1.1  christos 	relax_info->picfixup_size += picfixup_size;
   7443      1.1  christos       newsize += relax_info->picfixup_size;
   7444      1.1  christos     }
   7445      1.1  christos 
   7446      1.1  christos   if (changes != 0 || picfixup_size != 0 || workaround_change)
   7447      1.1  christos     isec->size = newsize;
   7448      1.1  christos 
   7449      1.1  christos   if (isymbuf != NULL
   7450      1.1  christos       && symtab_hdr->contents != (unsigned char *) isymbuf)
   7451      1.1  christos     {
   7452      1.1  christos       if (! link_info->keep_memory)
   7453      1.1  christos 	free (isymbuf);
   7454      1.1  christos       else
   7455      1.1  christos 	{
   7456      1.1  christos 	  /* Cache the symbols for elf_link_input_bfd.  */
   7457      1.1  christos 	  symtab_hdr->contents = (unsigned char *) isymbuf;
   7458      1.1  christos 	}
   7459  1.1.1.3  christos     }
   7460      1.1  christos 
   7461      1.1  christos   if (contents != NULL
   7462      1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7463      1.1  christos     {
   7464      1.1  christos       if (!changes && !link_info->keep_memory)
   7465      1.1  christos 	free (contents);
   7466      1.1  christos       else
   7467      1.1  christos 	{
   7468      1.1  christos 	  /* Cache the section contents for elf_link_input_bfd.  */
   7469      1.1  christos 	  elf_section_data (isec)->this_hdr.contents = contents;
   7470      1.1  christos 	}
   7471      1.1  christos     }
   7472      1.1  christos 
   7473      1.1  christos   changes += picfixup_size;
   7474      1.1  christos   if (changes != 0)
   7475      1.1  christos     {
   7476      1.1  christos       /* Append sufficient NOP relocs so we can write out relocation
   7477      1.1  christos 	 information for the trampolines.  */
   7478      1.1  christos       Elf_Internal_Shdr *rel_hdr;
   7479      1.1  christos       Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
   7480      1.1  christos 						  * sizeof (*new_relocs));
   7481      1.1  christos       unsigned ix;
   7482      1.1  christos 
   7483      1.1  christos       if (!new_relocs)
   7484      1.1  christos 	goto error_return;
   7485      1.1  christos       memcpy (new_relocs, internal_relocs,
   7486  1.1.1.2  christos 	      isec->reloc_count * sizeof (*new_relocs));
   7487  1.1.1.2  christos       for (ix = changes; ix--;)
   7488      1.1  christos 	{
   7489      1.1  christos 	  irel = new_relocs + ix + isec->reloc_count;
   7490  1.1.1.2  christos 
   7491      1.1  christos 	  irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7492      1.1  christos 	}
   7493      1.1  christos       if (internal_relocs != elf_section_data (isec)->relocs)
   7494  1.1.1.3  christos 	free (internal_relocs);
   7495  1.1.1.2  christos       elf_section_data (isec)->relocs = new_relocs;
   7496  1.1.1.3  christos       isec->reloc_count += changes;
   7497  1.1.1.3  christos       rel_hdr = _bfd_elf_single_rel_hdr (isec);
   7498  1.1.1.2  christos       rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
   7499  1.1.1.2  christos     }
   7500      1.1  christos   else if (internal_relocs != NULL
   7501      1.1  christos 	   && elf_section_data (isec)->relocs != internal_relocs)
   7502      1.1  christos     free (internal_relocs);
   7503      1.1  christos 
   7504      1.1  christos   *again = changes != 0 || workaround_change;
   7505      1.1  christos   return TRUE;
   7506      1.1  christos 
   7507      1.1  christos  error_return:
   7508      1.1  christos   while (branch_fixups != NULL)
   7509      1.1  christos     {
   7510      1.1  christos       struct one_branch_fixup *f = branch_fixups;
   7511      1.1  christos       branch_fixups = branch_fixups->next;
   7512      1.1  christos       free (f);
   7513      1.1  christos     }
   7514      1.1  christos   if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
   7515      1.1  christos     free (isymbuf);
   7516      1.1  christos   if (contents != NULL
   7517      1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7518      1.1  christos     free (contents);
   7519      1.1  christos   if (internal_relocs != NULL
   7520      1.1  christos       && elf_section_data (isec)->relocs != internal_relocs)
   7521      1.1  christos     free (internal_relocs);
   7522      1.1  christos   return FALSE;
   7523      1.1  christos }
   7524      1.1  christos 
   7525      1.1  christos /* What to do when ld finds relocations against symbols defined in
   7527      1.1  christos    discarded sections.  */
   7528      1.1  christos 
   7529      1.1  christos static unsigned int
   7530      1.1  christos ppc_elf_action_discarded (asection *sec)
   7531      1.1  christos {
   7532      1.1  christos   if (strcmp (".fixup", sec->name) == 0)
   7533      1.1  christos     return 0;
   7534      1.1  christos 
   7535      1.1  christos   if (strcmp (".got2", sec->name) == 0)
   7536      1.1  christos     return 0;
   7537      1.1  christos 
   7538      1.1  christos   return _bfd_elf_default_action_discarded (sec);
   7539      1.1  christos }
   7540      1.1  christos 
   7541      1.1  christos /* Fill in the address for a pointer generated in a linker section.  */
   7543      1.1  christos 
   7544      1.1  christos static bfd_vma
   7545      1.1  christos elf_finish_pointer_linker_section (bfd *input_bfd,
   7546      1.1  christos 				   elf_linker_section_t *lsect,
   7547      1.1  christos 				   struct elf_link_hash_entry *h,
   7548      1.1  christos 				   bfd_vma relocation,
   7549      1.1  christos 				   const Elf_Internal_Rela *rel)
   7550      1.1  christos {
   7551      1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   7552      1.1  christos 
   7553      1.1  christos   BFD_ASSERT (lsect != NULL);
   7554      1.1  christos 
   7555      1.1  christos   if (h != NULL)
   7556      1.1  christos     {
   7557      1.1  christos       /* Handle global symbol.  */
   7558      1.1  christos       struct ppc_elf_link_hash_entry *eh;
   7559      1.1  christos 
   7560      1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   7561      1.1  christos       BFD_ASSERT (eh->elf.def_regular);
   7562      1.1  christos       linker_section_ptr = eh->linker_section_pointer;
   7563      1.1  christos     }
   7564      1.1  christos   else
   7565      1.1  christos     {
   7566      1.1  christos       /* Handle local symbol.  */
   7567      1.1  christos       unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   7568      1.1  christos 
   7569      1.1  christos       BFD_ASSERT (is_ppc_elf (input_bfd));
   7570      1.1  christos       BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
   7571      1.1  christos       linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
   7572      1.1  christos     }
   7573      1.1  christos 
   7574      1.1  christos   linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
   7575      1.1  christos 							rel->r_addend,
   7576      1.1  christos 							lsect);
   7577      1.1  christos   BFD_ASSERT (linker_section_ptr != NULL);
   7578      1.1  christos 
   7579      1.1  christos   /* Offset will always be a multiple of four, so use the bottom bit
   7580      1.1  christos      as a "written" flag.  */
   7581      1.1  christos   if ((linker_section_ptr->offset & 1) == 0)
   7582      1.1  christos     {
   7583      1.1  christos       bfd_put_32 (lsect->section->owner,
   7584      1.1  christos 		  relocation + linker_section_ptr->addend,
   7585      1.1  christos 		  lsect->section->contents + linker_section_ptr->offset);
   7586      1.1  christos       linker_section_ptr->offset += 1;
   7587      1.1  christos     }
   7588      1.1  christos 
   7589      1.1  christos   relocation = (lsect->section->output_section->vma
   7590      1.1  christos 		+ lsect->section->output_offset
   7591      1.1  christos 		+ linker_section_ptr->offset - 1
   7592      1.1  christos 		- SYM_VAL (lsect->sym));
   7593      1.1  christos 
   7594      1.1  christos #ifdef DEBUG
   7595      1.1  christos   fprintf (stderr,
   7596      1.1  christos 	   "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
   7597      1.1  christos 	   lsect->name, (long) relocation, (long) relocation);
   7598      1.1  christos #endif
   7599      1.1  christos 
   7600      1.1  christos   return relocation;
   7601      1.1  christos }
   7602      1.1  christos 
   7603  1.1.1.4  christos #define PPC_LO(v) ((v) & 0xffff)
   7604      1.1  christos #define PPC_HI(v) (((v) >> 16) & 0xffff)
   7605      1.1  christos #define PPC_HA(v) PPC_HI ((v) + 0x8000)
   7606      1.1  christos 
   7607      1.1  christos static void
   7608      1.1  christos write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
   7609      1.1  christos 		  struct bfd_link_info *info)
   7610      1.1  christos {
   7611      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   7612      1.1  christos   bfd *output_bfd = info->output_bfd;
   7613      1.1  christos   bfd_vma plt;
   7614      1.1  christos 
   7615      1.1  christos   plt = ((ent->plt.offset & ~1)
   7616      1.1  christos 	 + plt_sec->output_section->vma
   7617      1.1  christos 	 + plt_sec->output_offset);
   7618      1.1  christos 
   7619      1.1  christos   if (bfd_link_pic (info))
   7620      1.1  christos     {
   7621      1.1  christos       bfd_vma got = 0;
   7622      1.1  christos 
   7623      1.1  christos       if (ent->addend >= 32768)
   7624  1.1.1.2  christos 	got = (ent->addend
   7625      1.1  christos 	       + ent->sec->output_section->vma
   7626      1.1  christos 	       + ent->sec->output_offset);
   7627      1.1  christos       else if (htab->elf.hgot != NULL)
   7628      1.1  christos 	got = SYM_VAL (htab->elf.hgot);
   7629      1.1  christos 
   7630      1.1  christos       plt -= got;
   7631      1.1  christos 
   7632      1.1  christos       if (plt + 0x8000 < 0x10000)
   7633      1.1  christos 	{
   7634      1.1  christos 	  bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
   7635      1.1  christos 	  p += 4;
   7636      1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_11, p);
   7637      1.1  christos 	  p += 4;
   7638      1.1  christos 	  bfd_put_32 (output_bfd, BCTR, p);
   7639      1.1  christos 	  p += 4;
   7640      1.1  christos 	  bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
   7641      1.1  christos 	  p += 4;
   7642      1.1  christos 	}
   7643      1.1  christos       else
   7644      1.1  christos 	{
   7645      1.1  christos 	  bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
   7646      1.1  christos 	  p += 4;
   7647      1.1  christos 	  bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7648      1.1  christos 	  p += 4;
   7649      1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_11, p);
   7650      1.1  christos 	  p += 4;
   7651      1.1  christos 	  bfd_put_32 (output_bfd, BCTR, p);
   7652      1.1  christos 	  p += 4;
   7653      1.1  christos 	}
   7654      1.1  christos     }
   7655      1.1  christos   else
   7656      1.1  christos     {
   7657      1.1  christos       bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
   7658      1.1  christos       p += 4;
   7659      1.1  christos       bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7660      1.1  christos       p += 4;
   7661      1.1  christos       bfd_put_32 (output_bfd, MTCTR_11, p);
   7662      1.1  christos       p += 4;
   7663      1.1  christos       bfd_put_32 (output_bfd, BCTR, p);
   7664      1.1  christos       p += 4;
   7665      1.1  christos     }
   7666      1.1  christos }
   7667      1.1  christos 
   7668      1.1  christos /* Return true if symbol is defined statically.  */
   7669      1.1  christos 
   7670      1.1  christos static bfd_boolean
   7671      1.1  christos is_static_defined (struct elf_link_hash_entry *h)
   7672      1.1  christos {
   7673      1.1  christos   return ((h->root.type == bfd_link_hash_defined
   7674      1.1  christos 	   || h->root.type == bfd_link_hash_defweak)
   7675      1.1  christos 	  && h->root.u.def.section != NULL
   7676      1.1  christos 	  && h->root.u.def.section->output_section != NULL);
   7677      1.1  christos }
   7678      1.1  christos 
   7679      1.1  christos /* If INSN is an opcode that may be used with an @tls operand, return
   7680      1.1  christos    the transformed insn for TLS optimisation, otherwise return 0.  If
   7681      1.1  christos    REG is non-zero only match an insn with RB or RA equal to REG.  */
   7682      1.1  christos 
   7683      1.1  christos unsigned int
   7684      1.1  christos _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
   7685      1.1  christos {
   7686      1.1  christos   unsigned int rtra;
   7687      1.1  christos 
   7688      1.1  christos   if ((insn & (0x3f << 26)) != 31 << 26)
   7689      1.1  christos     return 0;
   7690      1.1  christos 
   7691      1.1  christos   if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
   7692      1.1  christos     rtra = insn & ((1 << 26) - (1 << 16));
   7693      1.1  christos   else if (((insn >> 16) & 0x1f) == reg)
   7694      1.1  christos     rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
   7695      1.1  christos   else
   7696      1.1  christos     return 0;
   7697      1.1  christos 
   7698      1.1  christos   if ((insn & (0x3ff << 1)) == 266 << 1)
   7699      1.1  christos     /* add -> addi.  */
   7700      1.1  christos     insn = 14 << 26;
   7701      1.1  christos   else if ((insn & (0x1f << 1)) == 23 << 1
   7702      1.1  christos 	   && ((insn & (0x1f << 6)) < 14 << 6
   7703      1.1  christos 	       || ((insn & (0x1f << 6)) >= 16 << 6
   7704      1.1  christos 		   && (insn & (0x1f << 6)) < 24 << 6)))
   7705      1.1  christos     /* load and store indexed -> dform.  */
   7706      1.1  christos     insn = (32 | ((insn >> 6) & 0x1f)) << 26;
   7707      1.1  christos   else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
   7708      1.1  christos     /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu.  */
   7709      1.1  christos     insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
   7710      1.1  christos   else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
   7711      1.1  christos     /* lwax -> lwa.  */
   7712      1.1  christos     insn = (58 << 26) | 2;
   7713      1.1  christos   else
   7714      1.1  christos     return 0;
   7715      1.1  christos   insn |= rtra;
   7716      1.1  christos   return insn;
   7717      1.1  christos }
   7718      1.1  christos 
   7719      1.1  christos /* If INSN is an opcode that may be used with an @tprel operand, return
   7720      1.1  christos    the transformed insn for an undefined weak symbol, ie. with the
   7721      1.1  christos    thread pointer REG operand removed.  Otherwise return 0.  */
   7722      1.1  christos 
   7723      1.1  christos unsigned int
   7724      1.1  christos _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
   7725      1.1  christos {
   7726      1.1  christos   if ((insn & (0x1f << 16)) == reg << 16
   7727      1.1  christos       && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
   7728      1.1  christos 	  || (insn & (0x3f << 26)) == 15u << 26 /* addis */
   7729      1.1  christos 	  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   7730      1.1  christos 	  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   7731      1.1  christos 	  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   7732      1.1  christos 	  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   7733      1.1  christos 	  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   7734      1.1  christos 	  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   7735      1.1  christos 	  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   7736      1.1  christos 	  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   7737      1.1  christos 	  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   7738      1.1  christos 	  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   7739      1.1  christos 	  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   7740      1.1  christos 	  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   7741      1.1  christos 	  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   7742      1.1  christos 	  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   7743      1.1  christos 	      && (insn & 3) != 1)
   7744      1.1  christos 	  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   7745      1.1  christos 	      && ((insn & 3) == 0 || (insn & 3) == 3))))
   7746      1.1  christos     {
   7747      1.1  christos       insn &= ~(0x1f << 16);
   7748      1.1  christos     }
   7749      1.1  christos   else if ((insn & (0x1f << 21)) == reg << 21
   7750      1.1  christos 	   && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
   7751      1.1  christos 	       || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
   7752      1.1  christos 	       || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
   7753      1.1  christos     {
   7754      1.1  christos       insn &= ~(0x1f << 21);
   7755      1.1  christos       insn |= (insn & (0x1f << 16)) << 5;
   7756      1.1  christos       if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
   7757      1.1  christos 	insn -= 2 >> 26;  /* convert to ori,oris */
   7758      1.1  christos     }
   7759      1.1  christos   else
   7760  1.1.1.4  christos     insn = 0;
   7761  1.1.1.4  christos   return insn;
   7762  1.1.1.4  christos }
   7763      1.1  christos 
   7764      1.1  christos static bfd_boolean
   7765      1.1  christos is_insn_ds_form (unsigned int insn)
   7766      1.1  christos {
   7767      1.1  christos   return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
   7768      1.1  christos 	  || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
   7769      1.1  christos 	  || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
   7770      1.1  christos 	  || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
   7771      1.1  christos }
   7772      1.1  christos 
   7773      1.1  christos static bfd_boolean
   7774      1.1  christos is_insn_dq_form (unsigned int insn)
   7775      1.1  christos {
   7776      1.1  christos   return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
   7777      1.1  christos 	  || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
   7778      1.1  christos 	      && (insn & 3) == 1));
   7779      1.1  christos }
   7780      1.1  christos 
   7781      1.1  christos /* The RELOCATE_SECTION function is called by the ELF backend linker
   7782      1.1  christos    to handle the relocations for a section.
   7783      1.1  christos 
   7784      1.1  christos    The relocs are always passed as Rela structures; if the section
   7785      1.1  christos    actually uses Rel structures, the r_addend field will always be
   7786      1.1  christos    zero.
   7787      1.1  christos 
   7788      1.1  christos    This function is responsible for adjust the section contents as
   7789      1.1  christos    necessary, and (if using Rela relocs and generating a
   7790      1.1  christos    relocatable output file) adjusting the reloc addend as
   7791      1.1  christos    necessary.
   7792      1.1  christos 
   7793      1.1  christos    This function does not have to worry about setting the reloc
   7794      1.1  christos    address or the reloc symbol index.
   7795      1.1  christos 
   7796      1.1  christos    LOCAL_SYMS is a pointer to the swapped in local symbols.
   7797      1.1  christos 
   7798      1.1  christos    LOCAL_SECTIONS is an array giving the section in the input file
   7799      1.1  christos    corresponding to the st_shndx field of each local symbol.
   7800      1.1  christos 
   7801      1.1  christos    The global hash table entry for the global symbols can be found
   7802      1.1  christos    via elf_sym_hashes (input_bfd).
   7803      1.1  christos 
   7804      1.1  christos    When generating relocatable output, this function must handle
   7805      1.1  christos    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
   7806      1.1  christos    going to be the section symbol corresponding to the output
   7807      1.1  christos    section, which means that the addend must be adjusted
   7808  1.1.1.4  christos    accordingly.  */
   7809      1.1  christos 
   7810      1.1  christos static bfd_boolean
   7811      1.1  christos ppc_elf_relocate_section (bfd *output_bfd,
   7812      1.1  christos 			  struct bfd_link_info *info,
   7813      1.1  christos 			  bfd *input_bfd,
   7814  1.1.1.5  christos 			  asection *input_section,
   7815      1.1  christos 			  bfd_byte *contents,
   7816  1.1.1.3  christos 			  Elf_Internal_Rela *relocs,
   7817  1.1.1.3  christos 			  Elf_Internal_Sym *local_syms,
   7818      1.1  christos 			  asection **local_sections)
   7819      1.1  christos {
   7820      1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   7821      1.1  christos   struct elf_link_hash_entry **sym_hashes;
   7822      1.1  christos   struct ppc_elf_link_hash_table *htab;
   7823      1.1  christos   Elf_Internal_Rela *rel;
   7824  1.1.1.4  christos   Elf_Internal_Rela *wrel;
   7825      1.1  christos   Elf_Internal_Rela *relend;
   7826      1.1  christos   Elf_Internal_Rela outrel;
   7827      1.1  christos   asection *got2;
   7828      1.1  christos   bfd_vma *local_got_offsets;
   7829      1.1  christos   bfd_boolean ret = TRUE;
   7830      1.1  christos   bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
   7831      1.1  christos   bfd_boolean is_vxworks_tls;
   7832      1.1  christos   unsigned int picfixup_size = 0;
   7833      1.1  christos   struct ppc_elf_relax_info *relax_info = NULL;
   7834      1.1  christos 
   7835      1.1  christos #ifdef DEBUG
   7836      1.1  christos   _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
   7837      1.1  christos 		      "%ld relocations%s",
   7838      1.1  christos 		      input_bfd, input_section,
   7839  1.1.1.4  christos 		      (long) input_section->reloc_count,
   7840      1.1  christos 		      (bfd_link_relocatable (info)) ? " (relocatable)" : "");
   7841      1.1  christos #endif
   7842  1.1.1.3  christos 
   7843  1.1.1.3  christos   got2 = bfd_get_section_by_name (input_bfd, ".got2");
   7844  1.1.1.4  christos 
   7845      1.1  christos   /* Initialize howto table if not already done.  */
   7846  1.1.1.4  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   7847      1.1  christos     ppc_elf_howto_init ();
   7848      1.1  christos 
   7849      1.1  christos   htab = ppc_elf_hash_table (info);
   7850      1.1  christos   local_got_offsets = elf_local_got_offsets (input_bfd);
   7851      1.1  christos   symtab_hdr = &elf_symtab_hdr (input_bfd);
   7852      1.1  christos   sym_hashes = elf_sym_hashes (input_bfd);
   7853      1.1  christos   /* We have to handle relocations in vxworks .tls_vars sections
   7854      1.1  christos      specially, because the dynamic loader is 'weird'.  */
   7855      1.1  christos   is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
   7856      1.1  christos 		    && !strcmp (input_section->output_section->name,
   7857      1.1  christos 				".tls_vars"));
   7858      1.1  christos   if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
   7859      1.1  christos     relax_info = elf_section_data (input_section)->sec_info;
   7860      1.1  christos   rel = wrel = relocs;
   7861      1.1  christos   relend = relocs + input_section->reloc_count;
   7862      1.1  christos   for (; rel < relend; wrel++, rel++)
   7863  1.1.1.2  christos     {
   7864      1.1  christos       enum elf_ppc_reloc_type r_type;
   7865  1.1.1.4  christos       bfd_vma addend;
   7866      1.1  christos       bfd_reloc_status_type r;
   7867      1.1  christos       Elf_Internal_Sym *sym;
   7868      1.1  christos       asection *sec;
   7869      1.1  christos       struct elf_link_hash_entry *h;
   7870      1.1  christos       const char *sym_name;
   7871      1.1  christos       reloc_howto_type *howto;
   7872      1.1  christos       unsigned long r_symndx;
   7873      1.1  christos       bfd_vma relocation;
   7874      1.1  christos       bfd_vma branch_bit, from;
   7875      1.1  christos       bfd_boolean unresolved_reloc;
   7876      1.1  christos       bfd_boolean warned;
   7877      1.1  christos       unsigned int tls_type, tls_mask, tls_gd;
   7878      1.1  christos       struct plt_entry **ifunc;
   7879      1.1  christos       struct reloc_howto_struct alt_howto;
   7880      1.1  christos 
   7881      1.1  christos     again:
   7882      1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   7883      1.1  christos       sym = NULL;
   7884      1.1  christos       sec = NULL;
   7885      1.1  christos       h = NULL;
   7886      1.1  christos       unresolved_reloc = FALSE;
   7887      1.1  christos       warned = FALSE;
   7888      1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   7889      1.1  christos 
   7890      1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   7891      1.1  christos 	{
   7892      1.1  christos 	  sym = local_syms + r_symndx;
   7893      1.1  christos 	  sec = local_sections[r_symndx];
   7894      1.1  christos 	  sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
   7895      1.1  christos 
   7896      1.1  christos 	  relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
   7897      1.1  christos 	}
   7898      1.1  christos       else
   7899      1.1  christos 	{
   7900      1.1  christos 	  bfd_boolean ignored;
   7901      1.1  christos 
   7902  1.1.1.4  christos 	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
   7903  1.1.1.4  christos 				   r_symndx, symtab_hdr, sym_hashes,
   7904  1.1.1.4  christos 				   h, sec, relocation,
   7905  1.1.1.4  christos 				   unresolved_reloc, warned, ignored);
   7906  1.1.1.4  christos 
   7907  1.1.1.4  christos 	  sym_name = h->root.root.string;
   7908  1.1.1.4  christos 	}
   7909  1.1.1.4  christos 
   7910  1.1.1.4  christos       if (sec != NULL && discarded_section (sec))
   7911  1.1.1.4  christos 	{
   7912  1.1.1.4  christos 	  /* For relocs against symbols from removed linkonce sections,
   7913  1.1.1.4  christos 	     or sections discarded by a linker script, we just want the
   7914  1.1.1.4  christos 	     section contents zeroed.  Avoid any special processing.  */
   7915  1.1.1.4  christos 	  howto = NULL;
   7916  1.1.1.4  christos 	  if (r_type < R_PPC_max)
   7917  1.1.1.4  christos 	    howto = ppc_elf_howto_table[r_type];
   7918      1.1  christos 
   7919      1.1  christos 	  _bfd_clear_contents (howto, input_bfd, input_section,
   7920  1.1.1.4  christos 			       contents + rel->r_offset);
   7921      1.1  christos 	  wrel->r_offset = rel->r_offset;
   7922      1.1  christos 	  wrel->r_info = 0;
   7923      1.1  christos 	  wrel->r_addend = 0;
   7924      1.1  christos 
   7925      1.1  christos 	  /* For ld -r, remove relocations in debug sections against
   7926      1.1  christos 	     sections defined in discarded sections.  Not done for
   7927      1.1  christos 	     non-debug to preserve relocs in .eh_frame which the
   7928      1.1  christos 	     eh_frame editing code expects to be present.  */
   7929      1.1  christos 	  if (bfd_link_relocatable (info)
   7930  1.1.1.2  christos 	      && (input_section->flags & SEC_DEBUGGING))
   7931  1.1.1.2  christos 	    wrel--;
   7932  1.1.1.2  christos 
   7933  1.1.1.4  christos 	  continue;
   7934      1.1  christos 	}
   7935      1.1  christos 
   7936      1.1  christos       if (bfd_link_relocatable (info))
   7937      1.1  christos 	{
   7938      1.1  christos 	  if (got2 != NULL
   7939      1.1  christos 	      && r_type == R_PPC_PLTREL24
   7940      1.1  christos 	      && rel->r_addend != 0)
   7941      1.1  christos 	    {
   7942      1.1  christos 	      /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   7943      1.1  christos 		 addend specifies the GOT pointer offset within .got2.  */
   7944      1.1  christos 	      rel->r_addend += got2->output_offset;
   7945      1.1  christos 	    }
   7946      1.1  christos 	  if (r_type != R_PPC_RELAX_PLT
   7947      1.1  christos 	      && r_type != R_PPC_RELAX_PLTREL24
   7948      1.1  christos 	      && r_type != R_PPC_RELAX)
   7949      1.1  christos 	    goto copy_reloc;
   7950      1.1  christos 	}
   7951      1.1  christos 
   7952      1.1  christos       /* TLS optimizations.  Replace instruction sequences and relocs
   7953      1.1  christos 	 based on information we collected in tls_optimize.  We edit
   7954      1.1  christos 	 RELOCS so that --emit-relocs will output something sensible
   7955      1.1  christos 	 for the final instruction stream.  */
   7956      1.1  christos       tls_mask = 0;
   7957      1.1  christos       tls_gd = 0;
   7958      1.1  christos       if (h != NULL)
   7959      1.1  christos 	tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
   7960      1.1  christos       else if (local_got_offsets != NULL)
   7961      1.1  christos 	{
   7962      1.1  christos 	  struct plt_entry **local_plt;
   7963      1.1  christos 	  char *lgot_masks;
   7964      1.1  christos 	  local_plt
   7965      1.1  christos 	    = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
   7966      1.1  christos 	  lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   7967      1.1  christos 	  tls_mask = lgot_masks[r_symndx];
   7968      1.1  christos 	}
   7969      1.1  christos 
   7970      1.1  christos       /* Ensure reloc mapping code below stays sane.  */
   7971      1.1  christos       if ((R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TLSGD16 & 3)
   7972      1.1  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
   7973      1.1  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
   7974      1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
   7975      1.1  christos 	  || (R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TPREL16 & 3)
   7976  1.1.1.5  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
   7977  1.1.1.4  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
   7978      1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
   7979      1.1  christos 	abort ();
   7980  1.1.1.5  christos       switch (r_type)
   7981  1.1.1.4  christos 	{
   7982      1.1  christos 	default:
   7983      1.1  christos 	  break;
   7984      1.1  christos 
   7985      1.1  christos 	case R_PPC_GOT_TPREL16:
   7986      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   7987      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   7988      1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   7989      1.1  christos 	    {
   7990      1.1  christos 	      bfd_vma insn;
   7991      1.1  christos 
   7992      1.1  christos 	      insn = bfd_get_32 (input_bfd,
   7993  1.1.1.5  christos 				 contents + rel->r_offset - d_offset);
   7994      1.1  christos 	      insn &= 31 << 21;
   7995      1.1  christos 	      insn |= 0x3c020000;	/* addis 0,2,0 */
   7996      1.1  christos 	      bfd_put_32 (input_bfd, insn,
   7997  1.1.1.5  christos 			  contents + rel->r_offset - d_offset);
   7998      1.1  christos 	      r_type = R_PPC_TPREL16_HA;
   7999      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8000      1.1  christos 	    }
   8001      1.1  christos 	  break;
   8002      1.1  christos 
   8003      1.1  christos 	case R_PPC_TLS:
   8004      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   8005      1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   8006      1.1  christos 	    {
   8007      1.1  christos 	      bfd_vma insn;
   8008      1.1  christos 
   8009      1.1  christos 	      insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   8010      1.1  christos 	      insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
   8011      1.1  christos 	      if (insn == 0)
   8012      1.1  christos 		abort ();
   8013      1.1  christos 	      bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   8014      1.1  christos 	      r_type = R_PPC_TPREL16_LO;
   8015      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8016      1.1  christos 
   8017      1.1  christos 	      /* Was PPC_TLS which sits on insn boundary, now
   8018      1.1  christos 		 PPC_TPREL16_LO which is at low-order half-word.  */
   8019      1.1  christos 	      rel->r_offset += d_offset;
   8020      1.1  christos 	    }
   8021      1.1  christos 	  break;
   8022      1.1  christos 
   8023      1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   8024      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   8025  1.1.1.5  christos 	  tls_gd = TLS_TPRELGD;
   8026      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   8027      1.1  christos 	    goto tls_gdld_hi;
   8028      1.1  christos 	  break;
   8029      1.1  christos 
   8030      1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   8031      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   8032      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   8033      1.1  christos 	    {
   8034      1.1  christos 	    tls_gdld_hi:
   8035      1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   8036      1.1  christos 		r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   8037      1.1  christos 			  + R_PPC_GOT_TPREL16);
   8038      1.1  christos 	      else
   8039      1.1  christos 		{
   8040      1.1  christos 		  rel->r_offset -= d_offset;
   8041      1.1  christos 		  bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
   8042      1.1  christos 		  r_type = R_PPC_NONE;
   8043      1.1  christos 		}
   8044      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8045      1.1  christos 	    }
   8046      1.1  christos 	  break;
   8047      1.1  christos 
   8048      1.1  christos 	case R_PPC_GOT_TLSGD16:
   8049      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   8050      1.1  christos 	  tls_gd = TLS_TPRELGD;
   8051      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   8052      1.1  christos 	    goto tls_ldgd_opt;
   8053      1.1  christos 	  break;
   8054      1.1  christos 
   8055      1.1  christos 	case R_PPC_GOT_TLSLD16:
   8056      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   8057      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   8058  1.1.1.3  christos 	    {
   8059  1.1.1.3  christos 	      unsigned int insn1, insn2;
   8060  1.1.1.3  christos 	      bfd_vma offset;
   8061  1.1.1.3  christos 
   8062  1.1.1.5  christos 	    tls_ldgd_opt:
   8063  1.1.1.3  christos 	      offset = (bfd_vma) -1;
   8064      1.1  christos 	      /* If not using the newer R_PPC_TLSGD/LD to mark
   8065      1.1  christos 		 __tls_get_addr calls, we must trust that the call
   8066      1.1  christos 		 stays with its arg setup insns, ie. that the next
   8067  1.1.1.3  christos 		 reloc is the __tls_get_addr call associated with
   8068      1.1  christos 		 the current reloc.  Edit both insns.  */
   8069      1.1  christos 	      if (input_section->has_tls_get_addr_call
   8070      1.1  christos 		  && rel + 1 < relend
   8071      1.1  christos 		  && branch_reloc_hash_match (input_bfd, rel + 1,
   8072      1.1  christos 					      htab->tls_get_addr))
   8073  1.1.1.5  christos 		offset = rel[1].r_offset;
   8074      1.1  christos 	      /* We read the low GOT_TLS insn because we need to keep
   8075      1.1  christos 		 the destination reg.  It may be something other than
   8076      1.1  christos 		 the usual r3, and moved to r3 before the call by
   8077      1.1  christos 		 intervening code.  */
   8078      1.1  christos 	      insn1 = bfd_get_32 (input_bfd,
   8079      1.1  christos 				  contents + rel->r_offset - d_offset);
   8080      1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   8081      1.1  christos 		{
   8082  1.1.1.3  christos 		  /* IE */
   8083  1.1.1.3  christos 		  insn1 &= (0x1f << 21) | (0x1f << 16);
   8084      1.1  christos 		  insn1 |= 32 << 26;	/* lwz */
   8085      1.1  christos 		  if (offset != (bfd_vma) -1)
   8086      1.1  christos 		    {
   8087      1.1  christos 		      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8088      1.1  christos 		      insn2 = 0x7c631214;	/* add 3,3,2 */
   8089      1.1  christos 		      bfd_put_32 (input_bfd, insn2, contents + offset);
   8090      1.1  christos 		    }
   8091      1.1  christos 		  r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   8092      1.1  christos 			    + R_PPC_GOT_TPREL16);
   8093      1.1  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8094      1.1  christos 		}
   8095      1.1  christos 	      else
   8096      1.1  christos 		{
   8097      1.1  christos 		  /* LE */
   8098      1.1  christos 		  insn1 &= 0x1f << 21;
   8099      1.1  christos 		  insn1 |= 0x3c020000;	/* addis r,2,0 */
   8100      1.1  christos 		  if (tls_gd == 0)
   8101      1.1  christos 		    {
   8102      1.1  christos 		      /* Was an LD reloc.  */
   8103      1.1  christos 		      for (r_symndx = 0;
   8104      1.1  christos 			   r_symndx < symtab_hdr->sh_info;
   8105      1.1  christos 			   r_symndx++)
   8106      1.1  christos 			if (local_sections[r_symndx] == sec)
   8107      1.1  christos 			  break;
   8108  1.1.1.5  christos 		      if (r_symndx >= symtab_hdr->sh_info)
   8109      1.1  christos 			r_symndx = STN_UNDEF;
   8110      1.1  christos 		      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   8111  1.1.1.5  christos 		      if (r_symndx != STN_UNDEF)
   8112      1.1  christos 			rel->r_addend -= (local_syms[r_symndx].st_value
   8113      1.1  christos 					  + sec->output_offset
   8114      1.1  christos 					  + sec->output_section->vma);
   8115      1.1  christos 		    }
   8116      1.1  christos 		  r_type = R_PPC_TPREL16_HA;
   8117  1.1.1.4  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8118      1.1  christos 		  if (offset != (bfd_vma) -1)
   8119      1.1  christos 		    {
   8120      1.1  christos 		      rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   8121      1.1  christos 		      rel[1].r_offset = offset + d_offset;
   8122      1.1  christos 		      rel[1].r_addend = rel->r_addend;
   8123      1.1  christos 		      insn2 = 0x38630000;	/* addi 3,3,0 */
   8124      1.1  christos 		      bfd_put_32 (input_bfd, insn2, contents + offset);
   8125      1.1  christos 		    }
   8126      1.1  christos 		}
   8127      1.1  christos 	      bfd_put_32 (input_bfd, insn1,
   8128      1.1  christos 			  contents + rel->r_offset - d_offset);
   8129      1.1  christos 	      if (tls_gd == 0)
   8130      1.1  christos 		{
   8131      1.1  christos 		  /* We changed the symbol on an LD reloc.  Start over
   8132      1.1  christos 		     in order to get h, sym, sec etc. right.  */
   8133      1.1  christos 		  goto again;
   8134      1.1  christos 		}
   8135      1.1  christos 	    }
   8136      1.1  christos 	  break;
   8137      1.1  christos 
   8138      1.1  christos 	case R_PPC_TLSGD:
   8139      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   8140      1.1  christos 	    {
   8141      1.1  christos 	      unsigned int insn2;
   8142  1.1.1.5  christos 	      bfd_vma offset = rel->r_offset;
   8143      1.1  christos 
   8144      1.1  christos 	      if ((tls_mask & TLS_TPRELGD) != 0)
   8145      1.1  christos 		{
   8146      1.1  christos 		  /* IE */
   8147      1.1  christos 		  r_type = R_PPC_NONE;
   8148      1.1  christos 		  insn2 = 0x7c631214;	/* add 3,3,2 */
   8149      1.1  christos 		}
   8150      1.1  christos 	      else
   8151      1.1  christos 		{
   8152      1.1  christos 		  /* LE */
   8153      1.1  christos 		  r_type = R_PPC_TPREL16_LO;
   8154      1.1  christos 		  rel->r_offset += d_offset;
   8155      1.1  christos 		  insn2 = 0x38630000;	/* addi 3,3,0 */
   8156      1.1  christos 		}
   8157      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8158      1.1  christos 	      bfd_put_32 (input_bfd, insn2, contents + offset);
   8159      1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   8160      1.1  christos 	      BFD_ASSERT (offset == rel[1].r_offset);
   8161      1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8162      1.1  christos 	    }
   8163      1.1  christos 	  break;
   8164      1.1  christos 
   8165      1.1  christos 	case R_PPC_TLSLD:
   8166      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   8167      1.1  christos 	    {
   8168      1.1  christos 	      unsigned int insn2;
   8169      1.1  christos 
   8170  1.1.1.5  christos 	      for (r_symndx = 0;
   8171      1.1  christos 		   r_symndx < symtab_hdr->sh_info;
   8172      1.1  christos 		   r_symndx++)
   8173      1.1  christos 		if (local_sections[r_symndx] == sec)
   8174      1.1  christos 		  break;
   8175  1.1.1.4  christos 	      if (r_symndx >= symtab_hdr->sh_info)
   8176      1.1  christos 		r_symndx = STN_UNDEF;
   8177      1.1  christos 	      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   8178      1.1  christos 	      if (r_symndx != STN_UNDEF)
   8179      1.1  christos 		rel->r_addend -= (local_syms[r_symndx].st_value
   8180      1.1  christos 				  + sec->output_offset
   8181      1.1  christos 				  + sec->output_section->vma);
   8182      1.1  christos 
   8183      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   8184      1.1  christos 	      rel->r_offset += d_offset;
   8185      1.1  christos 	      insn2 = 0x38630000;	/* addi 3,3,0 */
   8186      1.1  christos 	      bfd_put_32 (input_bfd, insn2,
   8187      1.1  christos 			  contents + rel->r_offset - d_offset);
   8188      1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   8189      1.1  christos 	      BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
   8190      1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8191  1.1.1.5  christos 	      goto again;
   8192      1.1  christos 	    }
   8193      1.1  christos 	  break;
   8194      1.1  christos 	}
   8195      1.1  christos 
   8196      1.1  christos       /* Handle other relocations that tweak non-addend part of insn.  */
   8197      1.1  christos       branch_bit = 0;
   8198      1.1  christos       switch (r_type)
   8199  1.1.1.5  christos 	{
   8200      1.1  christos 	default:
   8201      1.1  christos 	  break;
   8202      1.1  christos 
   8203      1.1  christos 	  /* Branch taken prediction relocations.  */
   8204      1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   8205      1.1  christos 	case R_PPC_REL14_BRTAKEN:
   8206      1.1  christos 	  branch_bit = BRANCH_PREDICT_BIT;
   8207      1.1  christos 	  /* Fall through.  */
   8208      1.1  christos 
   8209      1.1  christos 	  /* Branch not taken prediction relocations.  */
   8210      1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   8211  1.1.1.5  christos 	case R_PPC_REL14_BRNTAKEN:
   8212      1.1  christos 	  {
   8213      1.1  christos 	    bfd_vma insn;
   8214      1.1  christos 
   8215      1.1  christos 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   8216  1.1.1.3  christos 	    insn &= ~BRANCH_PREDICT_BIT;
   8217  1.1.1.3  christos 	    insn |= branch_bit;
   8218  1.1.1.3  christos 
   8219  1.1.1.3  christos 	    from = (rel->r_offset
   8220  1.1.1.3  christos 		    + input_section->output_offset
   8221  1.1.1.3  christos 		    + input_section->output_section->vma);
   8222  1.1.1.3  christos 
   8223  1.1.1.3  christos 	    /* Invert 'y' bit if not the default.  */
   8224  1.1.1.3  christos 	    if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
   8225  1.1.1.3  christos 	      insn ^= BRANCH_PREDICT_BIT;
   8226  1.1.1.3  christos 
   8227  1.1.1.3  christos 	    bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   8228  1.1.1.3  christos 	    break;
   8229  1.1.1.3  christos 	  }
   8230  1.1.1.5  christos 	}
   8231  1.1.1.3  christos 
   8232  1.1.1.3  christos       if (ELIMINATE_COPY_RELOCS
   8233  1.1.1.3  christos 	  && h != NULL
   8234  1.1.1.3  christos 	  && !h->def_regular
   8235  1.1.1.3  christos 	  && h->protected_def
   8236  1.1.1.3  christos 	  && ppc_elf_hash_entry (h)->has_addr16_ha
   8237  1.1.1.3  christos 	  && ppc_elf_hash_entry (h)->has_addr16_lo
   8238  1.1.1.3  christos 	  && htab->params->pic_fixup > 0)
   8239  1.1.1.3  christos 	{
   8240  1.1.1.3  christos 	  /* Convert lis;addi or lis;load/store accessing a protected
   8241  1.1.1.3  christos 	     variable defined in a shared library to PIC.  */
   8242  1.1.1.3  christos 	  unsigned int insn;
   8243  1.1.1.3  christos 
   8244  1.1.1.3  christos 	  if (r_type == R_PPC_ADDR16_HA)
   8245  1.1.1.3  christos 	    {
   8246  1.1.1.5  christos 	      insn = bfd_get_32 (input_bfd,
   8247  1.1.1.3  christos 				 contents + rel->r_offset - d_offset);
   8248  1.1.1.3  christos 	      if ((insn & (0x3f << 26)) == (15u << 26)
   8249  1.1.1.5  christos 		  && (insn & (0x1f << 16)) == 0 /* lis */)
   8250  1.1.1.3  christos 		{
   8251  1.1.1.5  christos 		  bfd_byte *p;
   8252  1.1.1.5  christos 		  bfd_vma off;
   8253  1.1.1.3  christos 		  bfd_vma got_addr;
   8254  1.1.1.4  christos 
   8255  1.1.1.4  christos 		  p = (contents + input_section->size
   8256  1.1.1.4  christos 		       - relax_info->workaround_size
   8257  1.1.1.3  christos 		       - relax_info->picfixup_size
   8258  1.1.1.5  christos 		       + picfixup_size);
   8259  1.1.1.5  christos 		  off = (p - contents) - (rel->r_offset - d_offset);
   8260  1.1.1.3  christos 		  if (off > 0x1fffffc || (off & 3) != 0)
   8261  1.1.1.3  christos 		    info->callbacks->einfo
   8262  1.1.1.3  christos 		      (_("%H: fixup branch overflow\n"),
   8263  1.1.1.3  christos 		       input_bfd, input_section, rel->r_offset);
   8264  1.1.1.3  christos 
   8265  1.1.1.3  christos 		  bfd_put_32 (input_bfd, B | off,
   8266  1.1.1.5  christos 			      contents + rel->r_offset - d_offset);
   8267  1.1.1.3  christos 		  got_addr = (htab->elf.sgot->output_section->vma
   8268  1.1.1.5  christos 			      + htab->elf.sgot->output_offset
   8269  1.1.1.3  christos 			      + (h->got.offset & ~1));
   8270  1.1.1.3  christos 		  wrel->r_offset = (p - contents) + d_offset;
   8271  1.1.1.3  christos 		  wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
   8272  1.1.1.3  christos 		  wrel->r_addend = got_addr;
   8273  1.1.1.3  christos 		  insn &= ~0xffff;
   8274  1.1.1.4  christos 		  insn |= ((unsigned int) (got_addr + 0x8000) >> 16) & 0xffff;
   8275  1.1.1.4  christos 		  bfd_put_32 (input_bfd, insn, p);
   8276  1.1.1.3  christos 
   8277  1.1.1.4  christos 		  /* Convert lis to lwz, loading address from GOT.  */
   8278  1.1.1.3  christos 		  insn &= ~0xffff;
   8279  1.1.1.3  christos 		  insn ^= (32u ^ 15u) << 26;
   8280  1.1.1.3  christos 		  insn |= (insn & (0x1f << 21)) >> 5;
   8281  1.1.1.3  christos 		  insn |= got_addr & 0xffff;
   8282  1.1.1.3  christos 		  bfd_put_32 (input_bfd, insn, p + 4);
   8283  1.1.1.3  christos 
   8284  1.1.1.3  christos 		  bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
   8285  1.1.1.5  christos 		  picfixup_size += 12;
   8286  1.1.1.5  christos 
   8287  1.1.1.3  christos 		  /* Use one of the spare relocs, so --emit-relocs
   8288  1.1.1.3  christos 		     output is reasonable.  */
   8289  1.1.1.3  christos 		  memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
   8290  1.1.1.3  christos 		  wrel++, rel++;
   8291  1.1.1.3  christos 		  rel->r_offset = wrel[-1].r_offset + 4;
   8292  1.1.1.5  christos 		  rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
   8293  1.1.1.3  christos 		  rel->r_addend = wrel[-1].r_addend;
   8294  1.1.1.3  christos 
   8295  1.1.1.3  christos 		  /* Continue on as if we had a got reloc, to output
   8296  1.1.1.3  christos 		     dynamic reloc.  */
   8297  1.1.1.3  christos 		  r_type = R_PPC_GOT16_LO;
   8298  1.1.1.3  christos 		}
   8299  1.1.1.3  christos 	      else
   8300  1.1.1.3  christos 		info->callbacks->einfo
   8301  1.1.1.3  christos 		  /* xgettext:c-format */
   8302  1.1.1.3  christos 		  (_("%H: error: %s with unexpected instruction %x\n"),
   8303  1.1.1.3  christos 		   input_bfd, input_section, rel->r_offset,
   8304  1.1.1.3  christos 		   "R_PPC_ADDR16_HA", insn);
   8305  1.1.1.3  christos 	    }
   8306  1.1.1.3  christos 	  else if (r_type == R_PPC_ADDR16_LO)
   8307  1.1.1.3  christos 	    {
   8308  1.1.1.3  christos 	      insn = bfd_get_32 (input_bfd,
   8309  1.1.1.3  christos 				 contents + rel->r_offset - d_offset);
   8310  1.1.1.3  christos 	      if ((insn & (0x3f << 26)) == 14u << 26    /* addi */
   8311  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   8312  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   8313  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   8314  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   8315  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   8316  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   8317  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   8318  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   8319  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   8320  1.1.1.5  christos 		  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   8321  1.1.1.5  christos 		  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   8322  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   8323  1.1.1.3  christos 		  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   8324  1.1.1.3  christos 		  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   8325  1.1.1.3  christos 		      && (insn & 3) != 1)
   8326  1.1.1.3  christos 		  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   8327      1.1  christos 		      && ((insn & 3) == 0 || (insn & 3) == 3)))
   8328      1.1  christos 		{
   8329      1.1  christos 		  /* Arrange to apply the reloc addend, if any.  */
   8330      1.1  christos 		  relocation = 0;
   8331      1.1  christos 		  unresolved_reloc = FALSE;
   8332      1.1  christos 		  rel->r_info = ELF32_R_INFO (0, r_type);
   8333      1.1  christos 		}
   8334      1.1  christos 	      else
   8335      1.1  christos 		info->callbacks->einfo
   8336      1.1  christos 		  /* xgettext:c-format */
   8337      1.1  christos 		  (_("%H: error: %s with unexpected instruction %x\n"),
   8338      1.1  christos 		   input_bfd, input_section, rel->r_offset,
   8339      1.1  christos 		   "R_PPC_ADDR16_LO", insn);
   8340      1.1  christos 	    }
   8341      1.1  christos 	}
   8342      1.1  christos 
   8343      1.1  christos       ifunc = NULL;
   8344      1.1  christos       if (!htab->is_vxworks)
   8345      1.1  christos 	{
   8346      1.1  christos 	  struct plt_entry *ent;
   8347      1.1  christos 
   8348      1.1  christos 	  if (h != NULL)
   8349  1.1.1.4  christos 	    {
   8350      1.1  christos 	      if (h->type == STT_GNU_IFUNC)
   8351      1.1  christos 		ifunc = &h->plt.plist;
   8352      1.1  christos 	    }
   8353  1.1.1.4  christos 	  else if (local_got_offsets != NULL
   8354      1.1  christos 		   && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
   8355      1.1  christos 	    {
   8356      1.1  christos 	      struct plt_entry **local_plt;
   8357      1.1  christos 
   8358      1.1  christos 	      local_plt = (struct plt_entry **) (local_got_offsets
   8359  1.1.1.5  christos 						 + symtab_hdr->sh_info);
   8360  1.1.1.5  christos 	      ifunc = local_plt + r_symndx;
   8361  1.1.1.5  christos 	    }
   8362  1.1.1.5  christos 
   8363  1.1.1.5  christos 	  ent = NULL;
   8364  1.1.1.5  christos 	  if (ifunc != NULL
   8365  1.1.1.5  christos 	      && (!bfd_link_pic (info)
   8366  1.1.1.5  christos 		  || is_branch_reloc (r_type)))
   8367  1.1.1.5  christos 	    {
   8368  1.1.1.5  christos 	      addend = 0;
   8369  1.1.1.5  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
   8370  1.1.1.5  christos 		addend = rel->r_addend;
   8371  1.1.1.5  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   8372  1.1.1.5  christos 	    }
   8373  1.1.1.5  christos 	  if (ent != NULL)
   8374  1.1.1.5  christos 	    {
   8375  1.1.1.5  christos 	      if (bfd_link_pic (info)
   8376  1.1.1.5  christos 		  && ent->sec != got2
   8377  1.1.1.5  christos 		  && htab->plt_type != PLT_NEW
   8378  1.1.1.5  christos 		  && (!htab->elf.dynamic_sections_created
   8379  1.1.1.5  christos 		      || h == NULL
   8380      1.1  christos 		      || h->dynindx == -1))
   8381      1.1  christos 		{
   8382      1.1  christos 		  /* Uh oh, we are going to create a pic glink stub
   8383      1.1  christos 		     for an ifunc (here for h == NULL and later in
   8384      1.1  christos 		     finish_dynamic_symbol for h != NULL), and
   8385  1.1.1.5  christos 		     apparently are using code compiled with
   8386  1.1.1.5  christos 		     -mbss-plt.  The difficulty is that -mbss-plt code
   8387      1.1  christos 		     gives no indication via a magic PLTREL24 addend
   8388      1.1  christos 		     whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
   8389      1.1  christos 		     is pointing into a .got2 section (and how far
   8390  1.1.1.5  christos 		     into .got2).  */
   8391  1.1.1.5  christos 		    info->callbacks->einfo
   8392      1.1  christos 		      /* xgettext:c-format */
   8393      1.1  christos 		      (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
   8394  1.1.1.5  christos 		       input_bfd, input_section, rel->r_offset, sym_name);
   8395      1.1  christos 		}
   8396      1.1  christos 	      if (h == NULL && (ent->plt.offset & 1) == 0)
   8397      1.1  christos 		{
   8398      1.1  christos 		  Elf_Internal_Rela rela;
   8399      1.1  christos 		  bfd_byte *loc;
   8400      1.1  christos 
   8401      1.1  christos 		  rela.r_offset = (htab->elf.iplt->output_section->vma
   8402  1.1.1.5  christos 				   + htab->elf.iplt->output_offset
   8403      1.1  christos 				   + ent->plt.offset);
   8404      1.1  christos 		  rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8405      1.1  christos 		  rela.r_addend = relocation;
   8406      1.1  christos 		  loc = htab->elf.irelplt->contents;
   8407      1.1  christos 		  loc += (htab->elf.irelplt->reloc_count++
   8408      1.1  christos 			  * sizeof (Elf32_External_Rela));
   8409  1.1.1.2  christos 		  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   8410  1.1.1.2  christos 		  htab->local_ifunc_resolver = 1;
   8411      1.1  christos 
   8412      1.1  christos 		  ent->plt.offset |= 1;
   8413      1.1  christos 		}
   8414      1.1  christos 	      if (h == NULL && (ent->glink_offset & 1) == 0)
   8415  1.1.1.5  christos 		{
   8416  1.1.1.5  christos 		  unsigned char *p = ((unsigned char *) htab->glink->contents
   8417      1.1  christos 				      + ent->glink_offset);
   8418      1.1  christos 		  write_glink_stub (ent, htab->elf.iplt, p, info);
   8419      1.1  christos 		  ent->glink_offset |= 1;
   8420      1.1  christos 		}
   8421      1.1  christos 
   8422      1.1  christos 	      unresolved_reloc = FALSE;
   8423      1.1  christos 	      if (htab->plt_type == PLT_NEW
   8424      1.1  christos 		  || !htab->elf.dynamic_sections_created
   8425      1.1  christos 		  || h == NULL
   8426      1.1  christos 		  || h->dynindx == -1)
   8427      1.1  christos 		relocation = (htab->glink->output_section->vma
   8428      1.1  christos 			      + htab->glink->output_offset
   8429      1.1  christos 			      + (ent->glink_offset & ~1));
   8430  1.1.1.5  christos 	      else
   8431      1.1  christos 		relocation = (htab->elf.splt->output_section->vma
   8432      1.1  christos 			      + htab->elf.splt->output_offset
   8433      1.1  christos 			      + ent->plt.offset);
   8434      1.1  christos 	    }
   8435      1.1  christos 	}
   8436  1.1.1.4  christos 
   8437      1.1  christos       addend = rel->r_addend;
   8438      1.1  christos       tls_type = 0;
   8439      1.1  christos       howto = NULL;
   8440      1.1  christos       if (r_type < R_PPC_max)
   8441      1.1  christos 	howto = ppc_elf_howto_table[r_type];
   8442      1.1  christos       switch (r_type)
   8443      1.1  christos 	{
   8444      1.1  christos 	default:
   8445  1.1.1.4  christos 	  info->callbacks->einfo
   8446      1.1  christos 	    /* xgettext:c-format */
   8447      1.1  christos 	    (_("%P: %B: unknown relocation type %d for symbol %s\n"),
   8448      1.1  christos 	     input_bfd, (int) r_type, sym_name);
   8449      1.1  christos 
   8450      1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   8451      1.1  christos 	  ret = FALSE;
   8452      1.1  christos 	  goto copy_reloc;
   8453      1.1  christos 
   8454      1.1  christos 	case R_PPC_NONE:
   8455      1.1  christos 	case R_PPC_TLS:
   8456      1.1  christos 	case R_PPC_TLSGD:
   8457      1.1  christos 	case R_PPC_TLSLD:
   8458      1.1  christos 	case R_PPC_EMB_MRKREF:
   8459      1.1  christos 	case R_PPC_GNU_VTINHERIT:
   8460      1.1  christos 	case R_PPC_GNU_VTENTRY:
   8461      1.1  christos 	  goto copy_reloc;
   8462      1.1  christos 
   8463      1.1  christos 	  /* GOT16 relocations.  Like an ADDR16 using the symbol's
   8464      1.1  christos 	     address in the GOT as relocation value instead of the
   8465      1.1  christos 	     symbol's value itself.  Also, create a GOT entry for the
   8466      1.1  christos 	     symbol and put the symbol value there.  */
   8467      1.1  christos 	case R_PPC_GOT_TLSGD16:
   8468      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   8469      1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   8470      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   8471      1.1  christos 	  tls_type = TLS_TLS | TLS_GD;
   8472      1.1  christos 	  goto dogot;
   8473      1.1  christos 
   8474      1.1  christos 	case R_PPC_GOT_TLSLD16:
   8475      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   8476      1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   8477      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   8478      1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   8479      1.1  christos 	  goto dogot;
   8480      1.1  christos 
   8481      1.1  christos 	case R_PPC_GOT_TPREL16:
   8482      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   8483      1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   8484      1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   8485      1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   8486      1.1  christos 	  goto dogot;
   8487      1.1  christos 
   8488      1.1  christos 	case R_PPC_GOT_DTPREL16:
   8489      1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   8490      1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   8491      1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   8492  1.1.1.5  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   8493      1.1  christos 	  goto dogot;
   8494      1.1  christos 
   8495      1.1  christos 	case R_PPC_GOT16:
   8496      1.1  christos 	case R_PPC_GOT16_LO:
   8497      1.1  christos 	case R_PPC_GOT16_HI:
   8498      1.1  christos 	case R_PPC_GOT16_HA:
   8499      1.1  christos 	  tls_mask = 0;
   8500      1.1  christos 	dogot:
   8501      1.1  christos 	  {
   8502  1.1.1.5  christos 	    /* Relocation is to the entry for this symbol in the global
   8503  1.1.1.5  christos 	       offset table.  */
   8504  1.1.1.5  christos 	    bfd_vma off;
   8505  1.1.1.5  christos 	    bfd_vma *offp;
   8506  1.1.1.5  christos 	    unsigned long indx;
   8507      1.1  christos 
   8508      1.1  christos 	    if (htab->elf.sgot == NULL)
   8509      1.1  christos 	      abort ();
   8510      1.1  christos 
   8511      1.1  christos 	    indx = 0;
   8512      1.1  christos 	    if (tls_type == (TLS_TLS | TLS_LD)
   8513      1.1  christos 		&& (h == NULL
   8514      1.1  christos 		    || !h->def_dynamic))
   8515      1.1  christos 	      offp = &htab->tlsld_got.offset;
   8516      1.1  christos 	    else if (h != NULL)
   8517      1.1  christos 	      {
   8518      1.1  christos 		if (!htab->elf.dynamic_sections_created
   8519      1.1  christos 		    || h->dynindx == -1
   8520      1.1  christos 		    || SYMBOL_REFERENCES_LOCAL (info, h)
   8521      1.1  christos 		    || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   8522      1.1  christos 			&& h->root.type == bfd_link_hash_undefweak))
   8523      1.1  christos 		  /* This is actually a static link, or it is a
   8524      1.1  christos 		     -Bsymbolic link and the symbol is defined
   8525      1.1  christos 		     locally, or the symbol was forced to be local
   8526      1.1  christos 		     because of a version file.  */
   8527      1.1  christos 		  ;
   8528      1.1  christos 		else
   8529      1.1  christos 		  {
   8530      1.1  christos 		    indx = h->dynindx;
   8531      1.1  christos 		    unresolved_reloc = FALSE;
   8532      1.1  christos 		  }
   8533      1.1  christos 		offp = &h->got.offset;
   8534      1.1  christos 	      }
   8535      1.1  christos 	    else
   8536      1.1  christos 	      {
   8537      1.1  christos 		if (local_got_offsets == NULL)
   8538      1.1  christos 		  abort ();
   8539      1.1  christos 		offp = &local_got_offsets[r_symndx];
   8540      1.1  christos 	      }
   8541      1.1  christos 
   8542      1.1  christos 	    /* The offset must always be a multiple of 4.  We use the
   8543      1.1  christos 	       least significant bit to record whether we have already
   8544      1.1  christos 	       processed this entry.  */
   8545      1.1  christos 	    off = *offp;
   8546      1.1  christos 	    if ((off & 1) != 0)
   8547      1.1  christos 	      off &= ~1;
   8548      1.1  christos 	    else
   8549      1.1  christos 	      {
   8550      1.1  christos 		unsigned int tls_m = (tls_mask
   8551      1.1  christos 				      & (TLS_LD | TLS_GD | TLS_DTPREL
   8552      1.1  christos 					 | TLS_TPREL | TLS_TPRELGD));
   8553      1.1  christos 
   8554      1.1  christos 		if (offp == &htab->tlsld_got.offset)
   8555      1.1  christos 		  tls_m = TLS_LD;
   8556      1.1  christos 		else if (h == NULL
   8557      1.1  christos 			 || !h->def_dynamic)
   8558      1.1  christos 		  tls_m &= ~TLS_LD;
   8559      1.1  christos 
   8560      1.1  christos 		/* We might have multiple got entries for this sym.
   8561      1.1  christos 		   Initialize them all.  */
   8562      1.1  christos 		do
   8563      1.1  christos 		  {
   8564      1.1  christos 		    int tls_ty = 0;
   8565      1.1  christos 
   8566      1.1  christos 		    if ((tls_m & TLS_LD) != 0)
   8567      1.1  christos 		      {
   8568      1.1  christos 			tls_ty = TLS_TLS | TLS_LD;
   8569      1.1  christos 			tls_m &= ~TLS_LD;
   8570      1.1  christos 		      }
   8571      1.1  christos 		    else if ((tls_m & TLS_GD) != 0)
   8572  1.1.1.5  christos 		      {
   8573  1.1.1.5  christos 			tls_ty = TLS_TLS | TLS_GD;
   8574  1.1.1.5  christos 			tls_m &= ~TLS_GD;
   8575  1.1.1.5  christos 		      }
   8576  1.1.1.5  christos 		    else if ((tls_m & TLS_DTPREL) != 0)
   8577  1.1.1.5  christos 		      {
   8578      1.1  christos 			tls_ty = TLS_TLS | TLS_DTPREL;
   8579  1.1.1.5  christos 			tls_m &= ~TLS_DTPREL;
   8580      1.1  christos 		      }
   8581      1.1  christos 		    else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
   8582      1.1  christos 		      {
   8583  1.1.1.5  christos 			tls_ty = TLS_TLS | TLS_TPREL;
   8584  1.1.1.5  christos 			tls_m = 0;
   8585  1.1.1.5  christos 		      }
   8586  1.1.1.5  christos 
   8587  1.1.1.5  christos 		    /* Generate relocs for the dynamic linker.  */
   8588  1.1.1.5  christos 		    if (indx != 0
   8589  1.1.1.5  christos 			|| (bfd_link_pic (info)
   8590  1.1.1.5  christos 			    && (h == NULL
   8591  1.1.1.5  christos 				|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
   8592      1.1  christos 				|| h->root.type != bfd_link_hash_undefweak
   8593      1.1  christos 				|| offp == &htab->tlsld_got.offset)))
   8594      1.1  christos 		      {
   8595      1.1  christos 			asection *rsec = htab->elf.srelgot;
   8596      1.1  christos 			bfd_byte * loc;
   8597      1.1  christos 
   8598      1.1  christos 			if (ifunc != NULL)
   8599      1.1  christos 			  {
   8600      1.1  christos 			    rsec = htab->elf.irelplt;
   8601      1.1  christos 			    if (indx == 0)
   8602      1.1  christos 			      htab->local_ifunc_resolver = 1;
   8603      1.1  christos 			    else if (is_static_defined (h))
   8604      1.1  christos 			      htab->maybe_local_ifunc_resolver = 1;
   8605      1.1  christos 			  }
   8606      1.1  christos 			outrel.r_offset = (htab->elf.sgot->output_section->vma
   8607      1.1  christos 					   + htab->elf.sgot->output_offset
   8608      1.1  christos 					   + off);
   8609      1.1  christos 			outrel.r_addend = 0;
   8610      1.1  christos 			if (tls_ty & (TLS_LD | TLS_GD))
   8611      1.1  christos 			  {
   8612      1.1  christos 			    outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
   8613      1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_GD))
   8614      1.1  christos 			      {
   8615      1.1  christos 				loc = rsec->contents;
   8616      1.1  christos 				loc += (rsec->reloc_count++
   8617      1.1  christos 					* sizeof (Elf32_External_Rela));
   8618      1.1  christos 				bfd_elf32_swap_reloca_out (output_bfd,
   8619      1.1  christos 							   &outrel, loc);
   8620      1.1  christos 				outrel.r_offset += 4;
   8621      1.1  christos 				outrel.r_info
   8622      1.1  christos 				  = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   8623  1.1.1.3  christos 			      }
   8624  1.1.1.3  christos 			  }
   8625  1.1.1.3  christos 			else if (tls_ty == (TLS_TLS | TLS_DTPREL))
   8626  1.1.1.3  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   8627  1.1.1.3  christos 			else if (tls_ty == (TLS_TLS | TLS_TPREL))
   8628  1.1.1.3  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
   8629      1.1  christos 			else if (indx != 0)
   8630      1.1  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
   8631      1.1  christos 			else if (ifunc != NULL)
   8632      1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8633      1.1  christos 			else
   8634      1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   8635      1.1  christos 			if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
   8636      1.1  christos 			  {
   8637      1.1  christos 			    outrel.r_addend += relocation;
   8638      1.1  christos 			    if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
   8639      1.1  christos 			      {
   8640      1.1  christos 				if (htab->elf.tls_sec == NULL)
   8641  1.1.1.5  christos 				  outrel.r_addend = 0;
   8642  1.1.1.5  christos 				else
   8643  1.1.1.5  christos 				  outrel.r_addend -= htab->elf.tls_sec->vma;
   8644  1.1.1.5  christos 			      }
   8645      1.1  christos 			  }
   8646  1.1.1.5  christos 			loc = rsec->contents;
   8647      1.1  christos 			loc += (rsec->reloc_count++
   8648  1.1.1.3  christos 				* sizeof (Elf32_External_Rela));
   8649  1.1.1.3  christos 			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   8650  1.1.1.3  christos 		      }
   8651  1.1.1.3  christos 
   8652  1.1.1.5  christos 		    /* Init the .got section contents if we're not
   8653  1.1.1.5  christos 		       emitting a reloc.  */
   8654  1.1.1.5  christos 		    else
   8655  1.1.1.5  christos 		      {
   8656  1.1.1.5  christos 			bfd_vma value = relocation;
   8657  1.1.1.5  christos 			int tlsopt = (htab->plt_type == PLT_NEW
   8658  1.1.1.3  christos 				      && !htab->params->no_tls_get_addr_opt
   8659  1.1.1.3  christos 				      && htab->tls_get_addr != NULL
   8660      1.1  christos 				      && htab->tls_get_addr->plt.plist != NULL);
   8661  1.1.1.5  christos 
   8662      1.1  christos 			if (tls_ty != 0)
   8663  1.1.1.5  christos 			  {
   8664  1.1.1.5  christos 			    if (htab->elf.tls_sec == NULL)
   8665  1.1.1.5  christos 			      value = 0;
   8666      1.1  christos 			    else
   8667      1.1  christos 			      {
   8668  1.1.1.5  christos 				if (tls_ty & TLS_LD)
   8669  1.1.1.5  christos 				  value = 0;
   8670      1.1  christos 				else
   8671      1.1  christos 				  value -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8672      1.1  christos 				if ((tls_ty & TLS_TPREL)
   8673      1.1  christos 				    || (tlsopt && !(tls_ty & TLS_DTPREL)))
   8674      1.1  christos 				  value += DTP_OFFSET - TP_OFFSET;
   8675      1.1  christos 			      }
   8676      1.1  christos 
   8677      1.1  christos 			    if (tls_ty & (TLS_LD | TLS_GD))
   8678      1.1  christos 			      {
   8679      1.1  christos 				bfd_put_32 (input_bfd, value,
   8680      1.1  christos 					    htab->elf.sgot->contents + off + 4);
   8681      1.1  christos 				value = !tlsopt;
   8682      1.1  christos 			      }
   8683      1.1  christos 			  }
   8684      1.1  christos 			bfd_put_32 (input_bfd, value,
   8685      1.1  christos 				    htab->elf.sgot->contents + off);
   8686      1.1  christos 		      }
   8687      1.1  christos 
   8688      1.1  christos 		    off += 4;
   8689      1.1  christos 		    if (tls_ty & (TLS_LD | TLS_GD))
   8690      1.1  christos 		      off += 4;
   8691      1.1  christos 		  }
   8692      1.1  christos 		while (tls_m != 0);
   8693      1.1  christos 
   8694      1.1  christos 		off = *offp;
   8695      1.1  christos 		*offp = off | 1;
   8696      1.1  christos 	      }
   8697      1.1  christos 
   8698      1.1  christos 	    if (off >= (bfd_vma) -2)
   8699      1.1  christos 	      abort ();
   8700      1.1  christos 
   8701      1.1  christos 	    if ((tls_type & TLS_TLS) != 0)
   8702      1.1  christos 	      {
   8703      1.1  christos 		if (tls_type != (TLS_TLS | TLS_LD))
   8704      1.1  christos 		  {
   8705      1.1  christos 		    if ((tls_mask & TLS_LD) != 0
   8706  1.1.1.3  christos 			&& !(h == NULL
   8707  1.1.1.3  christos 			     || !h->def_dynamic))
   8708  1.1.1.4  christos 		      off += 8;
   8709  1.1.1.3  christos 		    if (tls_type != (TLS_TLS | TLS_GD))
   8710  1.1.1.5  christos 		      {
   8711  1.1.1.5  christos 			if ((tls_mask & TLS_GD) != 0)
   8712      1.1  christos 			  off += 8;
   8713      1.1  christos 			if (tls_type != (TLS_TLS | TLS_DTPREL))
   8714      1.1  christos 			  {
   8715      1.1  christos 			    if ((tls_mask & TLS_DTPREL) != 0)
   8716      1.1  christos 			      off += 4;
   8717      1.1  christos 			  }
   8718      1.1  christos 		      }
   8719      1.1  christos 		  }
   8720      1.1  christos 	      }
   8721  1.1.1.5  christos 
   8722  1.1.1.5  christos 	    /* If here for a picfixup, we're done.  */
   8723      1.1  christos 	    if (r_type != ELF32_R_TYPE (rel->r_info))
   8724      1.1  christos 	      goto copy_reloc;
   8725      1.1  christos 
   8726      1.1  christos 	    relocation = (htab->elf.sgot->output_section->vma
   8727  1.1.1.2  christos 			  + htab->elf.sgot->output_offset
   8728      1.1  christos 			  + off
   8729  1.1.1.2  christos 			  - SYM_VAL (htab->elf.hgot));
   8730      1.1  christos 
   8731      1.1  christos 	    /* Addends on got relocations don't make much sense.
   8732      1.1  christos 	       x+off@got is actually x@got+off, and since the got is
   8733      1.1  christos 	       generated by a hash table traversal, the value in the
   8734      1.1  christos 	       got at entry m+n bears little relation to the entry m.  */
   8735  1.1.1.4  christos 	    if (addend != 0)
   8736  1.1.1.4  christos 	      info->callbacks->einfo
   8737  1.1.1.4  christos 		/* xgettext:c-format */
   8738  1.1.1.4  christos 		(_("%H: non-zero addend on %s reloc against `%s'\n"),
   8739  1.1.1.4  christos 		 input_bfd, input_section, rel->r_offset,
   8740  1.1.1.4  christos 		 howto->name,
   8741  1.1.1.4  christos 		 sym_name);
   8742      1.1  christos 	  }
   8743  1.1.1.5  christos 	  break;
   8744  1.1.1.5  christos 
   8745  1.1.1.5  christos 	  /* Relocations that need no special processing.  */
   8746  1.1.1.5  christos 	case R_PPC_LOCAL24PC:
   8747  1.1.1.5  christos 	  /* It makes no sense to point a local relocation
   8748  1.1.1.5  christos 	     at a symbol not in this object.  */
   8749  1.1.1.5  christos 	  if (unresolved_reloc)
   8750  1.1.1.5  christos 	    {
   8751  1.1.1.5  christos 	      (*info->callbacks->undefined_symbol) (info,
   8752  1.1.1.5  christos 						    h->root.root.string,
   8753  1.1.1.5  christos 						    input_bfd,
   8754  1.1.1.5  christos 						    input_section,
   8755  1.1.1.5  christos 						    rel->r_offset,
   8756  1.1.1.5  christos 						    TRUE);
   8757  1.1.1.5  christos 	      goto copy_reloc;
   8758      1.1  christos 	    }
   8759      1.1  christos 	  if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
   8760      1.1  christos 	    {
   8761      1.1  christos 	      /* @local on an ifunc does not really make sense since
   8762      1.1  christos 		 the ifunc resolver can take you anywhere.  More
   8763      1.1  christos 		 seriously, calls to ifuncs must go through a plt call
   8764  1.1.1.3  christos 		 stub, and for pic the plt call stubs uses r30 to
   8765  1.1.1.3  christos 		 access the PLT.  The problem is that a call that is
   8766      1.1  christos 		 local won't have the +32k reloc addend trick marking
   8767      1.1  christos 		 -fPIC code, so the linker won't know whether r30 is
   8768      1.1  christos 		 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section.  */
   8769      1.1  christos 	      /* xgettext:c-format */
   8770      1.1  christos 	      info->callbacks->einfo (_("%X%H: @local call to ifunc %s\n"),
   8771      1.1  christos 				      input_bfd, input_section, rel->r_offset,
   8772      1.1  christos 				      h->root.root.string);
   8773      1.1  christos 	    }
   8774      1.1  christos 	  break;
   8775      1.1  christos 
   8776      1.1  christos 	case R_PPC_DTPREL16:
   8777      1.1  christos 	case R_PPC_DTPREL16_LO:
   8778      1.1  christos 	case R_PPC_DTPREL16_HI:
   8779      1.1  christos 	case R_PPC_DTPREL16_HA:
   8780      1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8781      1.1  christos 	    addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8782      1.1  christos 	  break;
   8783  1.1.1.5  christos 
   8784      1.1  christos 	  /* Relocations that may need to be propagated if this is a shared
   8785      1.1  christos 	     object.  */
   8786  1.1.1.5  christos 	case R_PPC_TPREL16:
   8787      1.1  christos 	case R_PPC_TPREL16_LO:
   8788      1.1  christos 	case R_PPC_TPREL16_HI:
   8789  1.1.1.3  christos 	case R_PPC_TPREL16_HA:
   8790  1.1.1.3  christos 	  if (h != NULL
   8791      1.1  christos 	      && h->root.type == bfd_link_hash_undefweak
   8792      1.1  christos 	      && h->dynindx == -1)
   8793      1.1  christos 	    {
   8794      1.1  christos 	      /* Make this relocation against an undefined weak symbol
   8795      1.1  christos 		 resolve to zero.  This is really just a tweak, since
   8796      1.1  christos 		 code using weak externs ought to check that they are
   8797  1.1.1.3  christos 		 defined before using them.  */
   8798  1.1.1.3  christos 	      bfd_byte *p = contents + rel->r_offset - d_offset;
   8799      1.1  christos 	      unsigned int insn = bfd_get_32 (input_bfd, p);
   8800      1.1  christos 	      insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
   8801      1.1  christos 	      if (insn != 0)
   8802  1.1.1.3  christos 		bfd_put_32 (input_bfd, insn, p);
   8803  1.1.1.3  christos 	      break;
   8804      1.1  christos 	    }
   8805      1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8806      1.1  christos 	    addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   8807      1.1  christos 	  /* The TPREL16 relocs shouldn't really be used in shared
   8808      1.1  christos 	     libs as they will result in DT_TEXTREL being set, but
   8809      1.1  christos 	     support them anyway.  */
   8810      1.1  christos 	  goto dodyn;
   8811      1.1  christos 
   8812      1.1  christos 	case R_PPC_TPREL32:
   8813      1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8814      1.1  christos 	    addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   8815  1.1.1.4  christos 	  goto dodyn;
   8816      1.1  christos 
   8817      1.1  christos 	case R_PPC_DTPREL32:
   8818      1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8819      1.1  christos 	    addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8820      1.1  christos 	  goto dodyn;
   8821      1.1  christos 
   8822      1.1  christos 	case R_PPC_DTPMOD32:
   8823      1.1  christos 	  relocation = 1;
   8824      1.1  christos 	  addend = 0;
   8825      1.1  christos 	  goto dodyn;
   8826      1.1  christos 
   8827      1.1  christos 	case R_PPC_REL16:
   8828      1.1  christos 	case R_PPC_REL16_LO:
   8829      1.1  christos 	case R_PPC_REL16_HI:
   8830      1.1  christos 	case R_PPC_REL16_HA:
   8831      1.1  christos 	case R_PPC_REL16DX_HA:
   8832      1.1  christos 	  break;
   8833      1.1  christos 
   8834      1.1  christos 	case R_PPC_REL32:
   8835      1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   8836      1.1  christos 	    break;
   8837      1.1  christos 	  /* fall through */
   8838      1.1  christos 
   8839      1.1  christos 	case R_PPC_ADDR32:
   8840      1.1  christos 	case R_PPC_ADDR16:
   8841      1.1  christos 	case R_PPC_ADDR16_LO:
   8842      1.1  christos 	case R_PPC_ADDR16_HI:
   8843      1.1  christos 	case R_PPC_ADDR16_HA:
   8844      1.1  christos 	case R_PPC_UADDR32:
   8845      1.1  christos 	case R_PPC_UADDR16:
   8846      1.1  christos 	  goto dodyn;
   8847      1.1  christos 
   8848      1.1  christos 	case R_PPC_VLE_REL8:
   8849      1.1  christos 	case R_PPC_VLE_REL15:
   8850  1.1.1.4  christos 	case R_PPC_VLE_REL24:
   8851      1.1  christos 	case R_PPC_REL24:
   8852      1.1  christos 	case R_PPC_REL14:
   8853      1.1  christos 	case R_PPC_REL14_BRTAKEN:
   8854      1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   8855      1.1  christos 	  /* If these relocations are not to a named symbol, they can be
   8856      1.1  christos 	     handled right here, no need to bother the dynamic linker.  */
   8857      1.1  christos 	  if (SYMBOL_CALLS_LOCAL (info, h)
   8858      1.1  christos 	      || h == htab->elf.hgot)
   8859  1.1.1.4  christos 	    break;
   8860      1.1  christos 	  /* fall through */
   8861      1.1  christos 
   8862      1.1  christos 	case R_PPC_ADDR24:
   8863      1.1  christos 	case R_PPC_ADDR14:
   8864      1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   8865      1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   8866      1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   8867      1.1  christos 	    break;
   8868      1.1  christos 	  /* fall through */
   8869  1.1.1.4  christos 
   8870      1.1  christos 	dodyn:
   8871      1.1  christos 	  if ((input_section->flags & SEC_ALLOC) == 0
   8872      1.1  christos 	      || is_vxworks_tls)
   8873  1.1.1.3  christos 	    break;
   8874  1.1.1.3  christos 
   8875  1.1.1.3  christos 	  if ((bfd_link_pic (info)
   8876  1.1.1.3  christos 	       && !(h != NULL
   8877  1.1.1.3  christos 		    && ((h->root.type == bfd_link_hash_undefined
   8878      1.1  christos 			 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
   8879      1.1  christos 			     || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
   8880      1.1  christos 			|| (h->root.type == bfd_link_hash_undefweak
   8881      1.1  christos 			    && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
   8882  1.1.1.5  christos 	       && (must_be_dyn_reloc (info, r_type)
   8883  1.1.1.5  christos 		   || !SYMBOL_CALLS_LOCAL (info, h)))
   8884      1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   8885      1.1  christos 		  && !bfd_link_pic (info)
   8886      1.1  christos 		  && h != NULL
   8887      1.1  christos 		  && h->dynindx != -1
   8888      1.1  christos 		  && !h->non_got_ref
   8889      1.1  christos 		  && !h->def_regular
   8890      1.1  christos 		  && !(h->protected_def
   8891      1.1  christos 		       && ppc_elf_hash_entry (h)->has_addr16_ha
   8892      1.1  christos 		       && ppc_elf_hash_entry (h)->has_addr16_lo
   8893      1.1  christos 		       && htab->params->pic_fixup > 0)))
   8894      1.1  christos 	    {
   8895      1.1  christos 	      int skip;
   8896      1.1  christos 	      bfd_byte *loc;
   8897      1.1  christos 	      asection *sreloc;
   8898      1.1  christos 	      long indx = 0;
   8899      1.1  christos 
   8900      1.1  christos #ifdef DEBUG
   8901      1.1  christos 	      fprintf (stderr, "ppc_elf_relocate_section needs to "
   8902      1.1  christos 		       "create relocation for %s\n",
   8903      1.1  christos 		       (h && h->root.root.string
   8904      1.1  christos 			? h->root.root.string : "<unknown>"));
   8905      1.1  christos #endif
   8906      1.1  christos 
   8907      1.1  christos 	      /* When generating a shared object, these relocations
   8908      1.1  christos 		 are copied into the output file to be resolved at run
   8909      1.1  christos 		 time.  */
   8910      1.1  christos 	      skip = 0;
   8911  1.1.1.5  christos 	      outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
   8912  1.1.1.5  christos 							 input_section,
   8913      1.1  christos 							 rel->r_offset);
   8914  1.1.1.5  christos 	      if (outrel.r_offset == (bfd_vma) -1
   8915      1.1  christos 		  || outrel.r_offset == (bfd_vma) -2)
   8916      1.1  christos 		skip = (int) outrel.r_offset;
   8917      1.1  christos 	      outrel.r_offset += (input_section->output_section->vma
   8918      1.1  christos 				  + input_section->output_offset);
   8919      1.1  christos 
   8920      1.1  christos 	      if (skip)
   8921      1.1  christos 		memset (&outrel, 0, sizeof outrel);
   8922      1.1  christos 	      else if ((h != NULL
   8923      1.1  christos 			&& (h->root.type == bfd_link_hash_undefined
   8924      1.1  christos 			    || h->root.type == bfd_link_hash_undefweak))
   8925      1.1  christos 		       || !SYMBOL_REFERENCES_LOCAL (info, h))
   8926      1.1  christos 		{
   8927      1.1  christos 		  indx = h->dynindx;
   8928      1.1  christos 		  BFD_ASSERT (indx != -1);
   8929      1.1  christos 		  unresolved_reloc = FALSE;
   8930      1.1  christos 		  outrel.r_info = ELF32_R_INFO (indx, r_type);
   8931      1.1  christos 		  outrel.r_addend = rel->r_addend;
   8932      1.1  christos 		}
   8933      1.1  christos 	      else
   8934      1.1  christos 		{
   8935      1.1  christos 		  outrel.r_addend = relocation + rel->r_addend;
   8936      1.1  christos 
   8937      1.1  christos 		  if (r_type != R_PPC_ADDR32)
   8938  1.1.1.5  christos 		    {
   8939  1.1.1.5  christos 		      if (ifunc != NULL)
   8940      1.1  christos 			{
   8941      1.1  christos 			  /* If we get here when building a static
   8942      1.1  christos 			     executable, then the libc startup function
   8943      1.1  christos 			     responsible for applying indirect function
   8944      1.1  christos 			     relocations is going to complain about
   8945      1.1  christos 			     the reloc type.
   8946      1.1  christos 			     If we get here when building a dynamic
   8947      1.1  christos 			     executable, it will be because we have
   8948      1.1  christos 			     a text relocation.  The dynamic loader
   8949      1.1  christos 			     will set the text segment writable and
   8950      1.1  christos 			     non-executable to apply text relocations.
   8951      1.1  christos 			     So we'll segfault when trying to run the
   8952      1.1  christos 			     indirection function to resolve the reloc.  */
   8953      1.1  christos 			  info->callbacks->einfo
   8954      1.1  christos 			    /* xgettext:c-format */
   8955      1.1  christos 			    (_("%H: relocation %s for indirect "
   8956      1.1  christos 			       "function %s unsupported\n"),
   8957      1.1  christos 			     input_bfd, input_section, rel->r_offset,
   8958      1.1  christos 			     howto->name,
   8959      1.1  christos 			     sym_name);
   8960      1.1  christos 			  ret = FALSE;
   8961      1.1  christos 			}
   8962      1.1  christos 		      else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
   8963      1.1  christos 			;
   8964      1.1  christos 		      else if (sec == NULL || sec->owner == NULL)
   8965      1.1  christos 			{
   8966      1.1  christos 			  bfd_set_error (bfd_error_bad_value);
   8967      1.1  christos 			  ret = FALSE;
   8968      1.1  christos 			}
   8969      1.1  christos 		      else
   8970      1.1  christos 			{
   8971      1.1  christos 			  asection *osec;
   8972      1.1  christos 
   8973      1.1  christos 			  /* We are turning this relocation into one
   8974      1.1  christos 			     against a section symbol.  It would be
   8975      1.1  christos 			     proper to subtract the symbol's value,
   8976      1.1  christos 			     osec->vma, from the emitted reloc addend,
   8977      1.1  christos 			     but ld.so expects buggy relocs.
   8978      1.1  christos 			     FIXME: Why not always use a zero index?  */
   8979      1.1  christos 			  osec = sec->output_section;
   8980      1.1  christos 			  indx = elf_section_data (osec)->dynindx;
   8981      1.1  christos 			  if (indx == 0)
   8982      1.1  christos 			    {
   8983      1.1  christos 			      osec = htab->elf.text_index_section;
   8984      1.1  christos 			      indx = elf_section_data (osec)->dynindx;
   8985      1.1  christos 			    }
   8986      1.1  christos 			  BFD_ASSERT (indx != 0);
   8987  1.1.1.5  christos #ifdef DEBUG
   8988  1.1.1.5  christos 			  if (indx == 0)
   8989  1.1.1.5  christos 			    printf ("indx=%ld section=%s flags=%08x name=%s\n",
   8990  1.1.1.5  christos 				    indx, osec->name, osec->flags,
   8991  1.1.1.5  christos 				    h->root.root.string);
   8992  1.1.1.5  christos #endif
   8993  1.1.1.5  christos 			}
   8994  1.1.1.5  christos 
   8995  1.1.1.5  christos 		      outrel.r_info = ELF32_R_INFO (indx, r_type);
   8996  1.1.1.5  christos 		    }
   8997  1.1.1.5  christos 		  else if (ifunc != NULL)
   8998  1.1.1.5  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8999      1.1  christos 		  else
   9000      1.1  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   9001      1.1  christos 		}
   9002      1.1  christos 
   9003      1.1  christos 	      sreloc = elf_section_data (input_section)->sreloc;
   9004  1.1.1.4  christos 	      if (ifunc)
   9005      1.1  christos 		{
   9006  1.1.1.5  christos 		  sreloc = htab->elf.irelplt;
   9007  1.1.1.5  christos 		  if (indx == 0)
   9008  1.1.1.5  christos 		    htab->local_ifunc_resolver = 1;
   9009      1.1  christos 		  else if (is_static_defined (h))
   9010      1.1  christos 		    htab->maybe_local_ifunc_resolver = 1;
   9011      1.1  christos 		}
   9012      1.1  christos 	      if (sreloc == NULL)
   9013      1.1  christos 		return FALSE;
   9014      1.1  christos 
   9015  1.1.1.5  christos 	      loc = sreloc->contents;
   9016  1.1.1.5  christos 	      loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
   9017  1.1.1.5  christos 	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   9018  1.1.1.5  christos 
   9019  1.1.1.5  christos 	      if (skip == -1)
   9020  1.1.1.5  christos 		goto copy_reloc;
   9021  1.1.1.5  christos 
   9022  1.1.1.5  christos 	      /* This reloc will be computed at runtime.  Clear the memory
   9023  1.1.1.5  christos 		 so that it contains a predictable value for prelink.  */
   9024  1.1.1.5  christos 	      if (!skip)
   9025  1.1.1.5  christos 		{
   9026  1.1.1.5  christos 		  relocation = howto->pc_relative ? outrel.r_offset : 0;
   9027  1.1.1.5  christos 		  addend = 0;
   9028  1.1.1.5  christos 		  break;
   9029  1.1.1.5  christos 		}
   9030  1.1.1.5  christos 	    }
   9031  1.1.1.5  christos 	  else if (r_type == R_PPC_DTPMOD32
   9032  1.1.1.5  christos 		   && htab->plt_type == PLT_NEW
   9033  1.1.1.5  christos 		   && !htab->params->no_tls_get_addr_opt
   9034  1.1.1.5  christos 		   && htab->tls_get_addr != NULL
   9035  1.1.1.5  christos 		   && htab->tls_get_addr->plt.plist != NULL)
   9036  1.1.1.5  christos 	    {
   9037  1.1.1.5  christos 	      /* Set up for __tls_get_addr_opt stub when this entry
   9038  1.1.1.5  christos 		 does not have dynamic relocs.  */
   9039  1.1.1.5  christos 	      relocation = 0;
   9040  1.1.1.5  christos 	      /* Set up the next word for local dynamic.  If it turns
   9041  1.1.1.5  christos 		 out to be global dynamic, the reloc will overwrite
   9042  1.1.1.5  christos 		 this value.  */
   9043      1.1  christos 	      if (rel->r_offset + 8 <= input_section->size)
   9044      1.1  christos 		bfd_put_32 (input_bfd, DTP_OFFSET - TP_OFFSET,
   9045      1.1  christos 			    contents + rel->r_offset + 4);
   9046      1.1  christos 	    }
   9047      1.1  christos 	  else if (r_type == R_PPC_DTPREL32
   9048      1.1  christos 		   && htab->plt_type == PLT_NEW
   9049      1.1  christos 		   && !htab->params->no_tls_get_addr_opt
   9050      1.1  christos 		   && htab->tls_get_addr != NULL
   9051      1.1  christos 		   && htab->tls_get_addr->plt.plist != NULL
   9052      1.1  christos 		   && rel > relocs
   9053      1.1  christos 		   && rel[-1].r_info == ELF32_R_INFO (r_symndx, R_PPC_DTPMOD32)
   9054  1.1.1.4  christos 		   && rel[-1].r_offset + 4 == rel->r_offset)
   9055      1.1  christos 	    {
   9056      1.1  christos 	      /* __tls_get_addr_opt stub value.  */
   9057      1.1  christos 	      addend += DTP_OFFSET - TP_OFFSET;
   9058      1.1  christos 	    }
   9059      1.1  christos 	  break;
   9060      1.1  christos 
   9061      1.1  christos 	case R_PPC_RELAX_PLT:
   9062      1.1  christos 	case R_PPC_RELAX_PLTREL24:
   9063      1.1  christos 	  if (h != NULL)
   9064  1.1.1.5  christos 	    {
   9065  1.1.1.5  christos 	      struct plt_entry *ent;
   9066      1.1  christos 	      bfd_vma got2_addend = 0;
   9067      1.1  christos 
   9068  1.1.1.5  christos 	      if (r_type == R_PPC_RELAX_PLTREL24)
   9069      1.1  christos 		{
   9070      1.1  christos 		  if (bfd_link_pic (info))
   9071      1.1  christos 		    got2_addend = addend;
   9072  1.1.1.2  christos 		  addend = 0;
   9073  1.1.1.2  christos 		}
   9074  1.1.1.2  christos 	      ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
   9075  1.1.1.2  christos 	      if (htab->plt_type == PLT_NEW)
   9076  1.1.1.2  christos 		relocation = (htab->glink->output_section->vma
   9077  1.1.1.4  christos 			      + htab->glink->output_offset
   9078  1.1.1.2  christos 			      + ent->glink_offset);
   9079  1.1.1.2  christos 	      else
   9080  1.1.1.2  christos 		relocation = (htab->elf.splt->output_section->vma
   9081  1.1.1.2  christos 			      + htab->elf.splt->output_offset
   9082  1.1.1.2  christos 			      + ent->plt.offset);
   9083  1.1.1.5  christos 	    }
   9084  1.1.1.5  christos 	  /* Fall through.  */
   9085  1.1.1.5  christos 
   9086  1.1.1.2  christos 	case R_PPC_RELAX:
   9087  1.1.1.2  christos 	  {
   9088  1.1.1.2  christos 	    const int *stub;
   9089  1.1.1.2  christos 	    size_t size;
   9090  1.1.1.2  christos 	    size_t insn_offset = rel->r_offset;
   9091  1.1.1.2  christos 	    unsigned int insn;
   9092  1.1.1.2  christos 
   9093  1.1.1.2  christos 	    if (bfd_link_pic (info))
   9094      1.1  christos 	      {
   9095      1.1  christos 		relocation -= (input_section->output_section->vma
   9096  1.1.1.4  christos 			       + input_section->output_offset
   9097  1.1.1.2  christos 			       + rel->r_offset - 4);
   9098      1.1  christos 		stub = shared_stub_entry;
   9099  1.1.1.2  christos 		bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
   9100  1.1.1.2  christos 		bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
   9101  1.1.1.2  christos 		bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
   9102  1.1.1.5  christos 		stub += 3;
   9103  1.1.1.2  christos 		size = ARRAY_SIZE (shared_stub_entry) - 3;
   9104  1.1.1.2  christos 	      }
   9105  1.1.1.2  christos 	    else
   9106  1.1.1.2  christos 	      {
   9107  1.1.1.5  christos 		stub = stub_entry;
   9108  1.1.1.2  christos 		size = ARRAY_SIZE (stub_entry);
   9109  1.1.1.2  christos 	      }
   9110  1.1.1.2  christos 
   9111  1.1.1.2  christos 	    relocation += addend;
   9112  1.1.1.2  christos 	    if (bfd_link_relocatable (info))
   9113  1.1.1.2  christos 	      relocation = 0;
   9114  1.1.1.2  christos 
   9115  1.1.1.5  christos 	    /* First insn is HA, second is LO.  */
   9116  1.1.1.2  christos 	    insn = *stub++;
   9117  1.1.1.2  christos 	    insn |= ((relocation + 0x8000) >> 16) & 0xffff;
   9118      1.1  christos 	    bfd_put_32 (input_bfd, insn, contents + insn_offset);
   9119      1.1  christos 	    insn_offset += 4;
   9120      1.1  christos 
   9121      1.1  christos 	    insn = *stub++;
   9122      1.1  christos 	    insn |= relocation & 0xffff;
   9123  1.1.1.4  christos 	    bfd_put_32 (input_bfd, insn, contents + insn_offset);
   9124  1.1.1.4  christos 	    insn_offset += 4;
   9125  1.1.1.4  christos 	    size -= 2;
   9126  1.1.1.4  christos 
   9127  1.1.1.4  christos 	    while (size != 0)
   9128  1.1.1.4  christos 	      {
   9129  1.1.1.4  christos 		insn = *stub++;
   9130      1.1  christos 		--size;
   9131      1.1  christos 		bfd_put_32 (input_bfd, insn, contents + insn_offset);
   9132      1.1  christos 		insn_offset += 4;
   9133      1.1  christos 	      }
   9134      1.1  christos 
   9135      1.1  christos 	    /* Rewrite the reloc and convert one of the trailing nop
   9136      1.1  christos 	       relocs to describe this relocation.  */
   9137      1.1  christos 	    BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
   9138      1.1  christos 	    /* The relocs are at the bottom 2 bytes */
   9139      1.1  christos 	    wrel->r_offset = rel->r_offset + d_offset;
   9140      1.1  christos 	    wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
   9141      1.1  christos 	    wrel->r_addend = rel->r_addend;
   9142      1.1  christos 	    memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
   9143      1.1  christos 	    wrel++, rel++;
   9144      1.1  christos 	    wrel->r_offset += 4;
   9145      1.1  christos 	    wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
   9146      1.1  christos 	  }
   9147      1.1  christos 	  continue;
   9148      1.1  christos 
   9149      1.1  christos 	  /* Indirect .sdata relocation.  */
   9150      1.1  christos 	case R_PPC_EMB_SDAI16:
   9151      1.1  christos 	  BFD_ASSERT (htab->sdata[0].section != NULL);
   9152      1.1  christos 	  if (!is_static_defined (htab->sdata[0].sym))
   9153      1.1  christos 	    {
   9154      1.1  christos 	      unresolved_reloc = TRUE;
   9155      1.1  christos 	      break;
   9156      1.1  christos 	    }
   9157      1.1  christos 	  relocation
   9158      1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
   9159      1.1  christos 						 h, relocation, rel);
   9160      1.1  christos 	  addend = 0;
   9161      1.1  christos 	  break;
   9162      1.1  christos 
   9163      1.1  christos 	  /* Indirect .sdata2 relocation.  */
   9164      1.1  christos 	case R_PPC_EMB_SDA2I16:
   9165      1.1  christos 	  BFD_ASSERT (htab->sdata[1].section != NULL);
   9166      1.1  christos 	  if (!is_static_defined (htab->sdata[1].sym))
   9167      1.1  christos 	    {
   9168      1.1  christos 	      unresolved_reloc = TRUE;
   9169      1.1  christos 	      break;
   9170      1.1  christos 	    }
   9171      1.1  christos 	  relocation
   9172      1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
   9173      1.1  christos 						 h, relocation, rel);
   9174      1.1  christos 	  addend = 0;
   9175      1.1  christos 	  break;
   9176      1.1  christos 
   9177      1.1  christos 	  /* Handle the TOC16 reloc.  We want to use the offset within the .got
   9178      1.1  christos 	     section, not the actual VMA.  This is appropriate when generating
   9179      1.1  christos 	     an embedded ELF object, for which the .got section acts like the
   9180      1.1  christos 	     AIX .toc section.  */
   9181      1.1  christos 	case R_PPC_TOC16:			/* phony GOT16 relocations */
   9182  1.1.1.4  christos 	  if (sec == NULL || sec->output_section == NULL)
   9183  1.1.1.4  christos 	    {
   9184  1.1.1.4  christos 	      unresolved_reloc = TRUE;
   9185  1.1.1.4  christos 	      break;
   9186      1.1  christos 	    }
   9187  1.1.1.5  christos 	  BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
   9188      1.1  christos 			      ".got") == 0
   9189      1.1  christos 		      || strcmp (bfd_get_section_name (sec->owner, sec),
   9190      1.1  christos 				 ".cgot") == 0);
   9191      1.1  christos 
   9192      1.1  christos 	  addend -= sec->output_section->vma + sec->output_offset + 0x8000;
   9193      1.1  christos 	  break;
   9194      1.1  christos 
   9195      1.1  christos 	case R_PPC_PLTREL24:
   9196      1.1  christos 	  if (h != NULL && ifunc == NULL)
   9197      1.1  christos 	    {
   9198      1.1  christos 	      struct plt_entry *ent;
   9199      1.1  christos 
   9200      1.1  christos 	      ent = find_plt_ent (&h->plt.plist, got2,
   9201      1.1  christos 				  bfd_link_pic (info) ? addend : 0);
   9202      1.1  christos 	      if (ent == NULL
   9203  1.1.1.5  christos 		  || htab->elf.splt == NULL)
   9204  1.1.1.5  christos 		{
   9205      1.1  christos 		  /* We didn't make a PLT entry for this symbol.  This
   9206      1.1  christos 		     happens when statically linking PIC code, or when
   9207      1.1  christos 		     using -Bsymbolic.  */
   9208      1.1  christos 		}
   9209      1.1  christos 	      else
   9210      1.1  christos 		{
   9211      1.1  christos 		  /* Relocation is to the entry for this symbol in the
   9212      1.1  christos 		     procedure linkage table.  */
   9213      1.1  christos 		  unresolved_reloc = FALSE;
   9214      1.1  christos 		  if (htab->plt_type == PLT_NEW)
   9215      1.1  christos 		    relocation = (htab->glink->output_section->vma
   9216      1.1  christos 				  + htab->glink->output_offset
   9217      1.1  christos 				  + ent->glink_offset);
   9218      1.1  christos 		  else
   9219      1.1  christos 		    relocation = (htab->elf.splt->output_section->vma
   9220      1.1  christos 				  + htab->elf.splt->output_offset
   9221      1.1  christos 				  + ent->plt.offset);
   9222      1.1  christos 		}
   9223      1.1  christos 	    }
   9224      1.1  christos 
   9225      1.1  christos 	  /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   9226      1.1  christos 	     addend specifies the GOT pointer offset within .got2.
   9227      1.1  christos 	     Don't apply it to the relocation field.  */
   9228      1.1  christos 	  addend = 0;
   9229      1.1  christos 	  break;
   9230      1.1  christos 
   9231  1.1.1.2  christos 	  /* Relocate against _SDA_BASE_.  */
   9232  1.1.1.2  christos 	case R_PPC_SDAREL16:
   9233      1.1  christos 	  {
   9234      1.1  christos 	    const char *name;
   9235  1.1.1.5  christos 	    struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   9236      1.1  christos 
   9237      1.1  christos 	    if (sec == NULL
   9238      1.1  christos 		|| sec->output_section == NULL
   9239      1.1  christos 		|| !is_static_defined (sda))
   9240      1.1  christos 	      {
   9241      1.1  christos 		unresolved_reloc = TRUE;
   9242      1.1  christos 		break;
   9243      1.1  christos 	      }
   9244      1.1  christos 	    addend -= SYM_VAL (sda);
   9245      1.1  christos 
   9246      1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9247      1.1  christos 	    if (!(strcmp (name, ".sdata") == 0
   9248      1.1  christos 		  || strcmp (name, ".sbss") == 0))
   9249      1.1  christos 	      {
   9250      1.1  christos 		info->callbacks->einfo
   9251      1.1  christos 		  /* xgettext:c-format */
   9252      1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   9253      1.1  christos 		     "in the wrong output section (%s)\n"),
   9254      1.1  christos 		   input_bfd,
   9255      1.1  christos 		   sym_name,
   9256      1.1  christos 		   howto->name,
   9257      1.1  christos 		   name);
   9258      1.1  christos 	      }
   9259      1.1  christos 	  }
   9260      1.1  christos 	  break;
   9261      1.1  christos 
   9262  1.1.1.2  christos 	  /* Relocate against _SDA2_BASE_.  */
   9263  1.1.1.2  christos 	case R_PPC_EMB_SDA2REL:
   9264      1.1  christos 	  {
   9265      1.1  christos 	    const char *name;
   9266  1.1.1.5  christos 	    struct elf_link_hash_entry *sda = htab->sdata[1].sym;
   9267      1.1  christos 
   9268      1.1  christos 	    if (sec == NULL
   9269      1.1  christos 		|| sec->output_section == NULL
   9270      1.1  christos 		|| !is_static_defined (sda))
   9271      1.1  christos 	      {
   9272      1.1  christos 		unresolved_reloc = TRUE;
   9273      1.1  christos 		break;
   9274      1.1  christos 	      }
   9275      1.1  christos 	    addend -= SYM_VAL (sda);
   9276      1.1  christos 
   9277      1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9278  1.1.1.2  christos 	    if (!(strcmp (name, ".sdata2") == 0
   9279  1.1.1.5  christos 		  || strcmp (name, ".sbss2") == 0))
   9280  1.1.1.5  christos 	      {
   9281  1.1.1.5  christos 		info->callbacks->einfo
   9282  1.1.1.4  christos 		  /* xgettext:c-format */
   9283      1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   9284      1.1  christos 		     "in the wrong output section (%s)\n"),
   9285  1.1.1.2  christos 		   input_bfd,
   9286  1.1.1.5  christos 		   sym_name,
   9287  1.1.1.5  christos 		   howto->name,
   9288  1.1.1.5  christos 		   name);
   9289  1.1.1.4  christos 	      }
   9290      1.1  christos 	  }
   9291      1.1  christos 	  break;
   9292  1.1.1.2  christos 
   9293  1.1.1.5  christos 	case R_PPC_VLE_LO16A:
   9294  1.1.1.5  christos 	  relocation = relocation + addend;
   9295  1.1.1.5  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9296  1.1.1.4  christos 			       contents + rel->r_offset, relocation,
   9297      1.1  christos 			       split16a_type, htab->params->vle_reloc_fixup);
   9298      1.1  christos 	  goto copy_reloc;
   9299  1.1.1.2  christos 
   9300  1.1.1.5  christos 	case R_PPC_VLE_LO16D:
   9301  1.1.1.5  christos 	  relocation = relocation + addend;
   9302  1.1.1.5  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9303  1.1.1.4  christos 			       contents + rel->r_offset, relocation,
   9304      1.1  christos 			       split16d_type, htab->params->vle_reloc_fixup);
   9305      1.1  christos 	  goto copy_reloc;
   9306  1.1.1.2  christos 
   9307  1.1.1.5  christos 	case R_PPC_VLE_HI16A:
   9308  1.1.1.5  christos 	  relocation = (relocation + addend) >> 16;
   9309  1.1.1.5  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9310  1.1.1.4  christos 			       contents + rel->r_offset, relocation,
   9311      1.1  christos 			       split16a_type, htab->params->vle_reloc_fixup);
   9312      1.1  christos 	  goto copy_reloc;
   9313  1.1.1.2  christos 
   9314  1.1.1.5  christos 	case R_PPC_VLE_HI16D:
   9315  1.1.1.5  christos 	  relocation = (relocation + addend) >> 16;
   9316  1.1.1.5  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9317  1.1.1.4  christos 			       contents + rel->r_offset, relocation,
   9318      1.1  christos 			       split16d_type, htab->params->vle_reloc_fixup);
   9319      1.1  christos 	  goto copy_reloc;
   9320      1.1  christos 
   9321      1.1  christos 	case R_PPC_VLE_HA16A:
   9322      1.1  christos 	  relocation = (relocation + addend + 0x8000) >> 16;
   9323      1.1  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9324      1.1  christos 			       contents + rel->r_offset, relocation,
   9325      1.1  christos 			       split16a_type, htab->params->vle_reloc_fixup);
   9326      1.1  christos 	  goto copy_reloc;
   9327  1.1.1.2  christos 
   9328      1.1  christos 	case R_PPC_VLE_HA16D:
   9329      1.1  christos 	  relocation = (relocation + addend + 0x8000) >> 16;
   9330      1.1  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9331      1.1  christos 			       contents + rel->r_offset, relocation,
   9332      1.1  christos 			       split16d_type, htab->params->vle_reloc_fixup);
   9333      1.1  christos 	  goto copy_reloc;
   9334      1.1  christos 
   9335      1.1  christos 	  /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0.  */
   9336      1.1  christos 	case R_PPC_EMB_SDA21:
   9337  1.1.1.2  christos 	case R_PPC_VLE_SDA21:
   9338  1.1.1.2  christos 	case R_PPC_EMB_RELSDA:
   9339      1.1  christos 	case R_PPC_VLE_SDA21_LO:
   9340      1.1  christos 	  {
   9341      1.1  christos 	    const char *name;
   9342      1.1  christos 	    int reg;
   9343  1.1.1.2  christos 	    unsigned int insn;
   9344  1.1.1.2  christos 	    struct elf_link_hash_entry *sda = NULL;
   9345      1.1  christos 
   9346      1.1  christos 	    if (sec == NULL || sec->output_section == NULL)
   9347      1.1  christos 	      {
   9348      1.1  christos 		unresolved_reloc = TRUE;
   9349      1.1  christos 		break;
   9350      1.1  christos 	      }
   9351      1.1  christos 
   9352      1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9353      1.1  christos 	    if (strcmp (name, ".sdata") == 0
   9354      1.1  christos 		|| strcmp (name, ".sbss") == 0)
   9355      1.1  christos 	      {
   9356      1.1  christos 		reg = 13;
   9357  1.1.1.5  christos 		sda = htab->sdata[0].sym;
   9358      1.1  christos 	      }
   9359      1.1  christos 	    else if (strcmp (name, ".sdata2") == 0
   9360      1.1  christos 		     || strcmp (name, ".sbss2") == 0)
   9361      1.1  christos 	      {
   9362      1.1  christos 		reg = 2;
   9363      1.1  christos 		sda = htab->sdata[1].sym;
   9364      1.1  christos 	      }
   9365      1.1  christos 	    else if (strcmp (name, ".PPC.EMB.sdata0") == 0
   9366      1.1  christos 		     || strcmp (name, ".PPC.EMB.sbss0") == 0)
   9367  1.1.1.4  christos 	      {
   9368      1.1  christos 		reg = 0;
   9369      1.1  christos 	      }
   9370      1.1  christos 	    else
   9371      1.1  christos 	      {
   9372      1.1  christos 		info->callbacks->einfo
   9373      1.1  christos 		  /* xgettext:c-format */
   9374      1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   9375      1.1  christos 		     "in the wrong output section (%s)\n"),
   9376      1.1  christos 		   input_bfd,
   9377      1.1  christos 		   sym_name,
   9378      1.1  christos 		   howto->name,
   9379      1.1  christos 		   name);
   9380  1.1.1.5  christos 
   9381      1.1  christos 		bfd_set_error (bfd_error_bad_value);
   9382      1.1  christos 		ret = FALSE;
   9383      1.1  christos 		goto copy_reloc;
   9384      1.1  christos 	      }
   9385  1.1.1.2  christos 
   9386  1.1.1.2  christos 	    if (sda != NULL)
   9387  1.1.1.2  christos 	      {
   9388  1.1.1.2  christos 		if (!is_static_defined (sda))
   9389  1.1.1.2  christos 		  {
   9390  1.1.1.2  christos 		    unresolved_reloc = TRUE;
   9391  1.1.1.2  christos 		    break;
   9392  1.1.1.2  christos 		  }
   9393  1.1.1.2  christos 		addend -= SYM_VAL (sda);
   9394  1.1.1.2  christos 	      }
   9395  1.1.1.2  christos 
   9396  1.1.1.2  christos 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   9397  1.1.1.2  christos 	    if (reg == 0
   9398  1.1.1.2  christos 		&& (r_type == R_PPC_VLE_SDA21
   9399  1.1.1.2  christos 		    || r_type == R_PPC_VLE_SDA21_LO))
   9400  1.1.1.5  christos 	      {
   9401  1.1.1.2  christos 		relocation = relocation + addend;
   9402  1.1.1.2  christos 		addend = 0;
   9403  1.1.1.2  christos 
   9404  1.1.1.2  christos 		/* Force e_li insn, keeping RT from original insn.  */
   9405  1.1.1.4  christos 		insn &= 0x1f << 21;
   9406      1.1  christos 		insn |= 28u << 26;
   9407      1.1  christos 
   9408      1.1  christos 		/* We have an li20 field, bits 17..20, 11..15, 21..31.  */
   9409      1.1  christos 		/* Top 4 bits of value to 17..20.  */
   9410      1.1  christos 		insn |= (relocation & 0xf0000) >> 5;
   9411  1.1.1.2  christos 		/* Next 5 bits of the value to 11..15.  */
   9412      1.1  christos 		insn |= (relocation & 0xf800) << 5;
   9413      1.1  christos 		/* And the final 11 bits of the value to bits 21 to 31.  */
   9414  1.1.1.5  christos 		insn |= relocation & 0x7ff;
   9415      1.1  christos 
   9416      1.1  christos 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   9417      1.1  christos 
   9418      1.1  christos 		if (r_type == R_PPC_VLE_SDA21
   9419      1.1  christos 		    && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
   9420      1.1  christos 		  goto overflow;
   9421      1.1  christos 		goto copy_reloc;
   9422      1.1  christos 	      }
   9423      1.1  christos 	    else if (r_type == R_PPC_EMB_SDA21
   9424      1.1  christos 		     || r_type == R_PPC_VLE_SDA21
   9425      1.1  christos 		     || r_type == R_PPC_VLE_SDA21_LO)
   9426      1.1  christos 	      {
   9427      1.1  christos 		/* Fill in register field.  */
   9428      1.1  christos 		insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
   9429      1.1  christos 	      }
   9430      1.1  christos 	    bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   9431      1.1  christos 	  }
   9432      1.1  christos 	  break;
   9433      1.1  christos 
   9434      1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   9435      1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   9436  1.1.1.2  christos 	case R_PPC_VLE_SDAREL_HI16A:
   9437  1.1.1.2  christos 	case R_PPC_VLE_SDAREL_HI16D:
   9438  1.1.1.5  christos 	case R_PPC_VLE_SDAREL_HA16A:
   9439  1.1.1.2  christos 	case R_PPC_VLE_SDAREL_HA16D:
   9440  1.1.1.2  christos 	  {
   9441  1.1.1.5  christos 	    bfd_vma value;
   9442      1.1  christos 	    const char *name;
   9443      1.1  christos 	    struct elf_link_hash_entry *sda = NULL;
   9444  1.1.1.5  christos 
   9445  1.1.1.5  christos 	    if (sec == NULL || sec->output_section == NULL)
   9446      1.1  christos 	      {
   9447      1.1  christos 		unresolved_reloc = TRUE;
   9448      1.1  christos 		break;
   9449      1.1  christos 	      }
   9450      1.1  christos 
   9451      1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9452      1.1  christos 	    if (strcmp (name, ".sdata") == 0
   9453      1.1  christos 		|| strcmp (name, ".sbss") == 0)
   9454      1.1  christos 	      sda = htab->sdata[0].sym;
   9455  1.1.1.4  christos 	    else if (strcmp (name, ".sdata2") == 0
   9456      1.1  christos 		     || strcmp (name, ".sbss2") == 0)
   9457      1.1  christos 	      sda = htab->sdata[1].sym;
   9458  1.1.1.5  christos 	    else
   9459      1.1  christos 	      {
   9460  1.1.1.5  christos 		_bfd_error_handler
   9461  1.1.1.5  christos 		  /* xgettext:c-format */
   9462      1.1  christos 		  (_("%B: the target (%s) of a %s relocation is "
   9463  1.1.1.5  christos 		     "in the wrong output section (%s)"),
   9464  1.1.1.2  christos 		   input_bfd,
   9465  1.1.1.2  christos 		   sym_name,
   9466  1.1.1.5  christos 		   howto->name,
   9467  1.1.1.5  christos 		   name);
   9468  1.1.1.5  christos 
   9469  1.1.1.5  christos 		bfd_set_error (bfd_error_bad_value);
   9470  1.1.1.2  christos 		ret = FALSE;
   9471  1.1.1.5  christos 		goto copy_reloc;
   9472  1.1.1.5  christos 	      }
   9473  1.1.1.5  christos 
   9474  1.1.1.5  christos 	    if (sda == NULL || !is_static_defined (sda))
   9475  1.1.1.2  christos 	      {
   9476  1.1.1.2  christos 		unresolved_reloc = TRUE;
   9477  1.1.1.2  christos 		break;
   9478  1.1.1.5  christos 	      }
   9479  1.1.1.5  christos 	    value = relocation + addend - SYM_VAL (sda);
   9480  1.1.1.5  christos 
   9481  1.1.1.5  christos 	    if (r_type == R_PPC_VLE_SDAREL_LO16A)
   9482  1.1.1.2  christos 	      ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9483  1.1.1.2  christos 				   contents + rel->r_offset, value,
   9484  1.1.1.2  christos 				   split16a_type,
   9485  1.1.1.2  christos 				   htab->params->vle_reloc_fixup);
   9486  1.1.1.5  christos 	    else if (r_type == R_PPC_VLE_SDAREL_LO16D)
   9487  1.1.1.5  christos 	      ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9488  1.1.1.5  christos 				   contents + rel->r_offset, value,
   9489  1.1.1.5  christos 				   split16d_type,
   9490  1.1.1.2  christos 				   htab->params->vle_reloc_fixup);
   9491  1.1.1.2  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HI16A)
   9492  1.1.1.2  christos 	      {
   9493  1.1.1.2  christos 		value = value >> 16;
   9494  1.1.1.5  christos 		ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9495  1.1.1.5  christos 				     contents + rel->r_offset, value,
   9496  1.1.1.5  christos 				     split16a_type,
   9497  1.1.1.5  christos 				     htab->params->vle_reloc_fixup);
   9498  1.1.1.2  christos 	      }
   9499  1.1.1.2  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HI16D)
   9500  1.1.1.2  christos 	      {
   9501  1.1.1.2  christos 		value = value >> 16;
   9502  1.1.1.5  christos 		ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9503  1.1.1.5  christos 				     contents + rel->r_offset, value,
   9504  1.1.1.5  christos 				     split16d_type,
   9505  1.1.1.5  christos 				     htab->params->vle_reloc_fixup);
   9506      1.1  christos 	      }
   9507      1.1  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HA16A)
   9508  1.1.1.4  christos 	      {
   9509      1.1  christos 		value = (value + 0x8000) >> 16;
   9510      1.1  christos 		ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9511      1.1  christos 				     contents + rel->r_offset, value,
   9512      1.1  christos 				     split16a_type,
   9513      1.1  christos 				     htab->params->vle_reloc_fixup);
   9514      1.1  christos 	      }
   9515      1.1  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HA16D)
   9516      1.1  christos 	      {
   9517      1.1  christos 		value = (value + 0x8000) >> 16;
   9518      1.1  christos 		ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9519      1.1  christos 				     contents + rel->r_offset, value,
   9520      1.1  christos 				     split16d_type,
   9521      1.1  christos 				     htab->params->vle_reloc_fixup);
   9522      1.1  christos 	      }
   9523      1.1  christos 	  }
   9524      1.1  christos 	  goto copy_reloc;
   9525      1.1  christos 
   9526      1.1  christos 	  /* Relocate against the beginning of the section.  */
   9527      1.1  christos 	case R_PPC_SECTOFF:
   9528      1.1  christos 	case R_PPC_SECTOFF_LO:
   9529      1.1  christos 	case R_PPC_SECTOFF_HI:
   9530      1.1  christos 	case R_PPC_SECTOFF_HA:
   9531      1.1  christos 	  if (sec == NULL || sec->output_section == NULL)
   9532      1.1  christos 	    {
   9533      1.1  christos 	      unresolved_reloc = TRUE;
   9534      1.1  christos 	      break;
   9535      1.1  christos 	    }
   9536      1.1  christos 	  addend -= sec->output_section->vma;
   9537      1.1  christos 	  break;
   9538      1.1  christos 
   9539      1.1  christos 	  /* Negative relocations.  */
   9540      1.1  christos 	case R_PPC_EMB_NADDR32:
   9541      1.1  christos 	case R_PPC_EMB_NADDR16:
   9542      1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   9543      1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   9544      1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   9545      1.1  christos 	  addend -= 2 * relocation;
   9546      1.1  christos 	  break;
   9547      1.1  christos 
   9548      1.1  christos 	case R_PPC_COPY:
   9549  1.1.1.5  christos 	case R_PPC_GLOB_DAT:
   9550      1.1  christos 	case R_PPC_JMP_SLOT:
   9551      1.1  christos 	case R_PPC_RELATIVE:
   9552      1.1  christos 	case R_PPC_IRELATIVE:
   9553      1.1  christos 	case R_PPC_PLT32:
   9554      1.1  christos 	case R_PPC_PLTREL32:
   9555      1.1  christos 	case R_PPC_PLT16_LO:
   9556      1.1  christos 	case R_PPC_PLT16_HI:
   9557  1.1.1.4  christos 	case R_PPC_PLT16_HA:
   9558      1.1  christos 	case R_PPC_ADDR30:
   9559      1.1  christos 	case R_PPC_EMB_RELSEC16:
   9560      1.1  christos 	case R_PPC_EMB_RELST_LO:
   9561      1.1  christos 	case R_PPC_EMB_RELST_HI:
   9562      1.1  christos 	case R_PPC_EMB_RELST_HA:
   9563      1.1  christos 	case R_PPC_EMB_BIT_FLD:
   9564      1.1  christos 	  info->callbacks->einfo
   9565      1.1  christos 	    /* xgettext:c-format */
   9566      1.1  christos 	    (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
   9567      1.1  christos 	     input_bfd,
   9568  1.1.1.4  christos 	     howto->name,
   9569      1.1  christos 	     sym_name);
   9570      1.1  christos 
   9571      1.1  christos 	  bfd_set_error (bfd_error_invalid_operation);
   9572      1.1  christos 	  ret = FALSE;
   9573      1.1  christos 	  goto copy_reloc;
   9574      1.1  christos 	}
   9575      1.1  christos 
   9576      1.1  christos       /* Do any further special processing.  */
   9577      1.1  christos       switch (r_type)
   9578      1.1  christos 	{
   9579      1.1  christos 	default:
   9580  1.1.1.5  christos 	  break;
   9581      1.1  christos 
   9582      1.1  christos 	case R_PPC_ADDR16_HA:
   9583      1.1  christos 	case R_PPC_REL16_HA:
   9584      1.1  christos 	case R_PPC_REL16DX_HA:
   9585      1.1  christos 	case R_PPC_SECTOFF_HA:
   9586      1.1  christos 	case R_PPC_TPREL16_HA:
   9587      1.1  christos 	case R_PPC_DTPREL16_HA:
   9588      1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   9589      1.1  christos 	case R_PPC_EMB_RELST_HA:
   9590      1.1  christos 	  /* It's just possible that this symbol is a weak symbol
   9591      1.1  christos 	     that's not actually defined anywhere.  In that case,
   9592      1.1  christos 	     'sec' would be NULL, and we should leave the symbol
   9593      1.1  christos 	     alone (it will be set to zero elsewhere in the link).  */
   9594      1.1  christos 	  if (sec == NULL)
   9595      1.1  christos 	    break;
   9596      1.1  christos 	  /* Fall through.  */
   9597      1.1  christos 
   9598      1.1  christos 	case R_PPC_PLT16_HA:
   9599      1.1  christos 	case R_PPC_GOT16_HA:
   9600      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   9601      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   9602      1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   9603      1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   9604      1.1  christos 	  /* Add 0x10000 if sign bit in 0:15 is set.
   9605      1.1  christos 	     Bits 0:15 are not used.  */
   9606      1.1  christos 	  addend += 0x8000;
   9607      1.1  christos 	  break;
   9608      1.1  christos 
   9609      1.1  christos 	case R_PPC_ADDR16:
   9610      1.1  christos 	case R_PPC_ADDR16_LO:
   9611      1.1  christos 	case R_PPC_GOT16:
   9612      1.1  christos 	case R_PPC_GOT16_LO:
   9613      1.1  christos 	case R_PPC_SDAREL16:
   9614      1.1  christos 	case R_PPC_SECTOFF:
   9615      1.1  christos 	case R_PPC_SECTOFF_LO:
   9616      1.1  christos 	case R_PPC_DTPREL16:
   9617      1.1  christos 	case R_PPC_DTPREL16_LO:
   9618  1.1.1.5  christos 	case R_PPC_TPREL16:
   9619  1.1.1.4  christos 	case R_PPC_TPREL16_LO:
   9620      1.1  christos 	case R_PPC_GOT_TLSGD16:
   9621      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   9622      1.1  christos 	case R_PPC_GOT_TLSLD16:
   9623      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   9624      1.1  christos 	case R_PPC_GOT_DTPREL16:
   9625      1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   9626      1.1  christos 	case R_PPC_GOT_TPREL16:
   9627  1.1.1.4  christos 	case R_PPC_GOT_TPREL16_LO:
   9628  1.1.1.4  christos 	  {
   9629  1.1.1.4  christos 	    /* The 32-bit ABI lacks proper relocations to deal with
   9630      1.1  christos 	       certain 64-bit instructions.  Prevent damage to bits
   9631      1.1  christos 	       that make up part of the insn opcode.  */
   9632  1.1.1.4  christos 	    unsigned int insn, mask, lobit;
   9633      1.1  christos 
   9634  1.1.1.5  christos 	    insn = bfd_get_32 (input_bfd,
   9635  1.1.1.5  christos 			       contents + rel->r_offset - d_offset);
   9636      1.1  christos 	    mask = 0;
   9637      1.1  christos 	    if (is_insn_ds_form (insn))
   9638      1.1  christos 	      mask = 3;
   9639      1.1  christos 	    else if (is_insn_dq_form (insn))
   9640      1.1  christos 	      mask = 15;
   9641      1.1  christos 	    else
   9642      1.1  christos 	      break;
   9643      1.1  christos 	    relocation += addend;
   9644      1.1  christos 	    addend = insn & mask;
   9645      1.1  christos 	    lobit = mask & relocation;
   9646      1.1  christos 	    if (lobit != 0)
   9647      1.1  christos 	      {
   9648      1.1  christos 		relocation ^= lobit;
   9649      1.1  christos 		info->callbacks->einfo
   9650      1.1  christos 		  /* xgettext:c-format */
   9651      1.1  christos 		  (_("%H: error: %s against `%s' not a multiple of %u\n"),
   9652      1.1  christos 		   input_bfd, input_section, rel->r_offset,
   9653      1.1  christos 		   howto->name, sym_name, mask + 1);
   9654      1.1  christos 		bfd_set_error (bfd_error_bad_value);
   9655      1.1  christos 		ret = FALSE;
   9656      1.1  christos 	      }
   9657      1.1  christos 	  }
   9658      1.1  christos 	  break;
   9659      1.1  christos 	}
   9660      1.1  christos 
   9661      1.1  christos #ifdef DEBUG
   9662      1.1  christos       fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
   9663  1.1.1.5  christos 	       "offset = %ld, addend = %ld\n",
   9664  1.1.1.5  christos 	       howto->name,
   9665      1.1  christos 	       (int) r_type,
   9666      1.1  christos 	       sym_name,
   9667      1.1  christos 	       r_symndx,
   9668      1.1  christos 	       (long) rel->r_offset,
   9669      1.1  christos 	       (long) addend);
   9670      1.1  christos #endif
   9671  1.1.1.2  christos 
   9672  1.1.1.2  christos       if (unresolved_reloc
   9673  1.1.1.2  christos 	  && !((input_section->flags & SEC_DEBUGGING) != 0
   9674  1.1.1.2  christos 	       && h->def_dynamic)
   9675  1.1.1.2  christos 	  && _bfd_elf_section_offset (output_bfd, info, input_section,
   9676  1.1.1.2  christos 				      rel->r_offset) != (bfd_vma) -1)
   9677  1.1.1.2  christos 	{
   9678  1.1.1.2  christos 	  info->callbacks->einfo
   9679  1.1.1.2  christos 	    /* xgettext:c-format */
   9680  1.1.1.2  christos 	    (_("%H: unresolvable %s relocation against symbol `%s'\n"),
   9681  1.1.1.2  christos 	     input_bfd, input_section, rel->r_offset,
   9682  1.1.1.2  christos 	     howto->name,
   9683  1.1.1.2  christos 	     sym_name);
   9684  1.1.1.2  christos 	  ret = FALSE;
   9685  1.1.1.2  christos 	}
   9686  1.1.1.2  christos 
   9687  1.1.1.2  christos       /* 16-bit fields in insns mostly have signed values, but a
   9688  1.1.1.2  christos 	 few insns have 16-bit unsigned values.  Really, we should
   9689  1.1.1.2  christos 	 have different reloc types.  */
   9690  1.1.1.2  christos       if (howto->complain_on_overflow != complain_overflow_dont
   9691  1.1.1.2  christos 	  && howto->dst_mask == 0xffff
   9692  1.1.1.2  christos 	  && (input_section->flags & SEC_CODE) != 0)
   9693  1.1.1.2  christos 	{
   9694  1.1.1.2  christos 	  enum complain_overflow complain = complain_overflow_signed;
   9695  1.1.1.2  christos 
   9696  1.1.1.2  christos 	  if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
   9697  1.1.1.2  christos 	    {
   9698  1.1.1.2  christos 	      unsigned int insn;
   9699  1.1.1.2  christos 
   9700  1.1.1.4  christos 	      insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
   9701  1.1.1.4  christos 	      if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
   9702  1.1.1.4  christos 		complain = complain_overflow_bitfield;
   9703  1.1.1.4  christos 	      else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
   9704  1.1.1.4  christos 		       || (insn & (0x3f << 26)) == 24u << 26 /* ori */
   9705  1.1.1.4  christos 		       || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
   9706  1.1.1.4  christos 		complain = complain_overflow_unsigned;
   9707  1.1.1.4  christos 	    }
   9708  1.1.1.4  christos 	  if (howto->complain_on_overflow != complain)
   9709  1.1.1.4  christos 	    {
   9710  1.1.1.4  christos 	      alt_howto = *howto;
   9711  1.1.1.4  christos 	      alt_howto.complain_on_overflow = complain;
   9712  1.1.1.4  christos 	      howto = &alt_howto;
   9713  1.1.1.4  christos 	    }
   9714  1.1.1.4  christos 	}
   9715  1.1.1.4  christos 
   9716  1.1.1.4  christos       if (r_type == R_PPC_REL16DX_HA)
   9717  1.1.1.4  christos 	{
   9718  1.1.1.4  christos 	  /* Split field reloc isn't handled by _bfd_final_link_relocate.  */
   9719  1.1.1.4  christos 	  if (rel->r_offset + 4 > input_section->size)
   9720  1.1.1.4  christos 	    r = bfd_reloc_outofrange;
   9721  1.1.1.4  christos 	  else
   9722  1.1.1.4  christos 	    {
   9723  1.1.1.4  christos 	      unsigned int insn;
   9724      1.1  christos 
   9725      1.1  christos 	      relocation += addend;
   9726      1.1  christos 	      relocation -= (rel->r_offset
   9727      1.1  christos 			     + input_section->output_offset
   9728      1.1  christos 			     + input_section->output_section->vma);
   9729  1.1.1.2  christos 	      relocation >>= 16;
   9730  1.1.1.3  christos 	      insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   9731  1.1.1.3  christos 	      insn &= ~0x1fffc1;
   9732  1.1.1.3  christos 	      insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
   9733  1.1.1.3  christos 	      bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   9734  1.1.1.3  christos 	      r = bfd_reloc_ok;
   9735  1.1.1.3  christos 	    }
   9736  1.1.1.3  christos 	}
   9737  1.1.1.4  christos       else
   9738  1.1.1.4  christos 	r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
   9739  1.1.1.4  christos 				      rel->r_offset, relocation, addend);
   9740      1.1  christos 
   9741      1.1  christos       if (r != bfd_reloc_ok)
   9742      1.1  christos 	{
   9743      1.1  christos 	  if (r == bfd_reloc_overflow)
   9744  1.1.1.5  christos 	    {
   9745  1.1.1.5  christos 	    overflow:
   9746      1.1  christos 	      /* On code like "if (foo) foo();" don't report overflow
   9747      1.1  christos 		 on a branch to zero when foo is undefined.  */
   9748      1.1  christos 	      if (!warned
   9749      1.1  christos 		  && !(h != NULL
   9750      1.1  christos 		       && (h->root.type == bfd_link_hash_undefweak
   9751  1.1.1.4  christos 			   || h->root.type == bfd_link_hash_undefined)
   9752  1.1.1.4  christos 		       && is_branch_reloc (r_type)))
   9753  1.1.1.4  christos 		info->callbacks->reloc_overflow
   9754  1.1.1.4  christos 		  (info, (h ? &h->root : NULL), sym_name, howto->name,
   9755  1.1.1.4  christos 		   rel->r_addend, input_bfd, input_section, rel->r_offset);
   9756  1.1.1.4  christos 	    }
   9757  1.1.1.4  christos 	  else
   9758  1.1.1.4  christos 	    {
   9759  1.1.1.4  christos 	      info->callbacks->einfo
   9760  1.1.1.4  christos 		/* xgettext:c-format */
   9761  1.1.1.4  christos 		(_("%H: %s reloc against `%s': error %d\n"),
   9762  1.1.1.4  christos 		 input_bfd, input_section, rel->r_offset,
   9763  1.1.1.4  christos 		 howto->name, sym_name, (int) r);
   9764  1.1.1.4  christos 	      ret = FALSE;
   9765  1.1.1.4  christos 	    }
   9766  1.1.1.4  christos 	}
   9767  1.1.1.4  christos     copy_reloc:
   9768  1.1.1.4  christos       if (wrel != rel)
   9769  1.1.1.4  christos 	*wrel = *rel;
   9770  1.1.1.4  christos     }
   9771  1.1.1.4  christos 
   9772  1.1.1.4  christos   if (wrel != rel)
   9773  1.1.1.4  christos     {
   9774  1.1.1.4  christos       Elf_Internal_Shdr *rel_hdr;
   9775  1.1.1.4  christos       size_t deleted = rel - wrel;
   9776      1.1  christos 
   9777      1.1  christos       rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
   9778      1.1  christos       rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
   9779      1.1  christos       if (rel_hdr->sh_size == 0)
   9780      1.1  christos 	{
   9781      1.1  christos 	  /* It is too late to remove an empty reloc section.  Leave
   9782  1.1.1.2  christos 	     one NONE reloc.
   9783  1.1.1.2  christos 	     ??? What is wrong with an empty section???  */
   9784  1.1.1.2  christos 	  rel_hdr->sh_size = rel_hdr->sh_entsize;
   9785  1.1.1.2  christos 	  deleted -= 1;
   9786  1.1.1.2  christos 	  wrel++;
   9787  1.1.1.2  christos 	}
   9788  1.1.1.2  christos       relend = wrel;
   9789  1.1.1.2  christos       rel_hdr = _bfd_elf_single_rel_hdr (input_section);
   9790  1.1.1.2  christos       rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
   9791  1.1.1.2  christos       input_section->reloc_count -= deleted;
   9792  1.1.1.2  christos     }
   9793  1.1.1.2  christos 
   9794  1.1.1.4  christos #ifdef DEBUG
   9795  1.1.1.2  christos   fprintf (stderr, "\n");
   9796  1.1.1.2  christos #endif
   9797  1.1.1.2  christos 
   9798  1.1.1.2  christos   if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
   9799  1.1.1.2  christos       && input_section->size != input_section->rawsize
   9800  1.1.1.2  christos       && (strcmp (input_section->output_section->name, ".init") == 0
   9801  1.1.1.2  christos 	  || strcmp (input_section->output_section->name, ".fini") == 0))
   9802  1.1.1.2  christos     {
   9803  1.1.1.2  christos       /* Branch around the trampolines.  */
   9804  1.1.1.2  christos       unsigned int insn = B + input_section->size - input_section->rawsize;
   9805  1.1.1.2  christos       bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
   9806  1.1.1.2  christos     }
   9807  1.1.1.2  christos 
   9808  1.1.1.2  christos   if (htab->params->ppc476_workaround
   9809  1.1.1.2  christos       && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
   9810  1.1.1.2  christos       && (!bfd_link_relocatable (info)
   9811  1.1.1.2  christos 	  || (input_section->output_section->alignment_power
   9812  1.1.1.2  christos 	      >= htab->params->pagesize_p2)))
   9813  1.1.1.2  christos     {
   9814  1.1.1.2  christos       bfd_vma start_addr, end_addr, addr;
   9815  1.1.1.2  christos       bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   9816  1.1.1.2  christos 
   9817  1.1.1.2  christos       if (relax_info->workaround_size != 0)
   9818  1.1.1.2  christos 	{
   9819  1.1.1.2  christos 	  bfd_byte *p;
   9820  1.1.1.2  christos 	  unsigned int n;
   9821  1.1.1.2  christos 	  bfd_byte fill[4];
   9822  1.1.1.2  christos 
   9823  1.1.1.2  christos 	  bfd_put_32 (input_bfd, BA, fill);
   9824  1.1.1.2  christos 	  p = contents + input_section->size - relax_info->workaround_size;
   9825  1.1.1.2  christos 	  n = relax_info->workaround_size >> 2;
   9826  1.1.1.2  christos 	  while (n--)
   9827  1.1.1.2  christos 	    {
   9828  1.1.1.2  christos 	      memcpy (p, fill, 4);
   9829  1.1.1.2  christos 	      p += 4;
   9830  1.1.1.2  christos 	    }
   9831  1.1.1.2  christos 	}
   9832  1.1.1.2  christos 
   9833  1.1.1.2  christos       /* The idea is: Replace the last instruction on a page with a
   9834  1.1.1.2  christos 	 branch to a patch area.  Put the insn there followed by a
   9835  1.1.1.2  christos 	 branch back to the next page.  Complicated a little by
   9836  1.1.1.2  christos 	 needing to handle moved conditional branches, and by not
   9837  1.1.1.2  christos 	 wanting to touch data-in-text.  */
   9838  1.1.1.2  christos 
   9839  1.1.1.2  christos       start_addr = (input_section->output_section->vma
   9840  1.1.1.2  christos 		    + input_section->output_offset);
   9841  1.1.1.2  christos       end_addr = (start_addr + input_section->size
   9842  1.1.1.2  christos 		  - relax_info->workaround_size);
   9843  1.1.1.2  christos       for (addr = ((start_addr & -pagesize) + pagesize - 4);
   9844  1.1.1.2  christos 	   addr < end_addr;
   9845  1.1.1.2  christos 	   addr += pagesize)
   9846  1.1.1.2  christos 	{
   9847  1.1.1.2  christos 	  bfd_vma offset = addr - start_addr;
   9848  1.1.1.2  christos 	  Elf_Internal_Rela *lo, *hi;
   9849  1.1.1.2  christos 	  bfd_boolean is_data;
   9850  1.1.1.2  christos 	  bfd_vma patch_off, patch_addr;
   9851  1.1.1.2  christos 	  unsigned int insn;
   9852  1.1.1.2  christos 
   9853  1.1.1.2  christos 	  /* Do we have a data reloc at this offset?  If so, leave
   9854  1.1.1.2  christos 	     the word alone.  */
   9855  1.1.1.2  christos 	  is_data = FALSE;
   9856  1.1.1.2  christos 	  lo = relocs;
   9857  1.1.1.2  christos 	  hi = relend;
   9858  1.1.1.2  christos 	  rel = NULL;
   9859  1.1.1.2  christos 	  while (lo < hi)
   9860  1.1.1.2  christos 	    {
   9861  1.1.1.2  christos 	      rel = lo + (hi - lo) / 2;
   9862  1.1.1.2  christos 	      if (rel->r_offset < offset)
   9863  1.1.1.2  christos 		lo = rel + 1;
   9864  1.1.1.2  christos 	      else if (rel->r_offset > offset + 3)
   9865  1.1.1.2  christos 		hi = rel;
   9866  1.1.1.2  christos 	      else
   9867  1.1.1.2  christos 		{
   9868  1.1.1.2  christos 		  switch (ELF32_R_TYPE (rel->r_info))
   9869  1.1.1.2  christos 		    {
   9870  1.1.1.2  christos 		    case R_PPC_ADDR32:
   9871  1.1.1.2  christos 		    case R_PPC_UADDR32:
   9872  1.1.1.2  christos 		    case R_PPC_REL32:
   9873  1.1.1.2  christos 		    case R_PPC_ADDR30:
   9874  1.1.1.2  christos 		      is_data = TRUE;
   9875  1.1.1.2  christos 		      break;
   9876  1.1.1.2  christos 		    default:
   9877  1.1.1.2  christos 		      break;
   9878  1.1.1.2  christos 		    }
   9879  1.1.1.2  christos 		  break;
   9880  1.1.1.2  christos 		}
   9881  1.1.1.2  christos 	    }
   9882  1.1.1.2  christos 	  if (is_data)
   9883  1.1.1.2  christos 	    continue;
   9884  1.1.1.2  christos 
   9885  1.1.1.2  christos 	  /* Some instructions can be left alone too.  Unconditional
   9886  1.1.1.2  christos 	     branches, except for bcctr with BO=0x14 (bctr, bctrl),
   9887  1.1.1.2  christos 	     avoid the icache failure.
   9888  1.1.1.2  christos 
   9889  1.1.1.2  christos 	     The problem occurs due to prefetch across a page boundary
   9890  1.1.1.2  christos 	     where stale instructions can be fetched from the next
   9891  1.1.1.2  christos 	     page, and the mechanism for flushing these bad
   9892  1.1.1.2  christos 	     instructions fails under certain circumstances.  The
   9893  1.1.1.2  christos 	     unconditional branches:
   9894  1.1.1.2  christos 	     1) Branch: b, bl, ba, bla,
   9895  1.1.1.2  christos 	     2) Branch Conditional: bc, bca, bcl, bcla,
   9896  1.1.1.2  christos 	     3) Branch Conditional to Link Register: bclr, bclrl,
   9897  1.1.1.2  christos 	     where (2) and (3) have BO=0x14 making them unconditional,
   9898  1.1.1.2  christos 	     prevent the bad prefetch because the prefetch itself is
   9899  1.1.1.2  christos 	     affected by these instructions.  This happens even if the
   9900  1.1.1.2  christos 	     instruction is not executed.
   9901  1.1.1.2  christos 
   9902  1.1.1.2  christos 	     A bctr example:
   9903  1.1.1.2  christos 	     .
   9904  1.1.1.4  christos 	     .	lis 9,new_page@ha
   9905  1.1.1.4  christos 	     .	addi 9,9,new_page@l
   9906  1.1.1.4  christos 	     .	mtctr 9
   9907  1.1.1.4  christos 	     .	bctr
   9908  1.1.1.2  christos 	     .	nop
   9909  1.1.1.4  christos 	     .	nop
   9910  1.1.1.4  christos 	     . new_page:
   9911  1.1.1.2  christos 	     .
   9912  1.1.1.2  christos 	     The bctr is not predicted taken due to ctr not being
   9913  1.1.1.2  christos 	     ready, so prefetch continues on past the bctr into the
   9914  1.1.1.2  christos 	     new page which might have stale instructions.  If they
   9915  1.1.1.2  christos 	     fail to be flushed, then they will be executed after the
   9916  1.1.1.2  christos 	     bctr executes.  Either of the following modifications
   9917  1.1.1.2  christos 	     prevent the bad prefetch from happening in the first
   9918  1.1.1.2  christos 	     place:
   9919  1.1.1.2  christos 	     .
   9920  1.1.1.2  christos 	     .	lis 9,new_page@ha	 lis 9,new_page@ha
   9921  1.1.1.2  christos 	     .	addi 9,9,new_page@l	 addi 9,9,new_page@l
   9922  1.1.1.2  christos 	     .	mtctr 9			 mtctr 9
   9923  1.1.1.2  christos 	     .	bctr			 bctr
   9924  1.1.1.2  christos 	     .	nop			 b somewhere_else
   9925  1.1.1.2  christos 	     .	b somewhere_else	 nop
   9926  1.1.1.2  christos 	     . new_page:		new_page:
   9927  1.1.1.2  christos 	     .  */
   9928  1.1.1.2  christos 	  insn = bfd_get_32 (input_bfd, contents + offset);
   9929  1.1.1.2  christos 	  if ((insn & (0x3f << 26)) == (18u << 26)          /* b,bl,ba,bla */
   9930  1.1.1.2  christos 	      || ((insn & (0x3f << 26)) == (16u << 26)      /* bc,bcl,bca,bcla*/
   9931  1.1.1.3  christos 		  && (insn & (0x14 << 21)) == (0x14 << 21)) /*   with BO=0x14 */
   9932  1.1.1.3  christos 	      || ((insn & (0x3f << 26)) == (19u << 26)
   9933  1.1.1.2  christos 		  && (insn & (0x3ff << 1)) == (16u << 1)    /* bclr,bclrl */
   9934  1.1.1.2  christos 		  && (insn & (0x14 << 21)) == (0x14 << 21)))/*   with BO=0x14 */
   9935  1.1.1.2  christos 	    continue;
   9936  1.1.1.2  christos 
   9937  1.1.1.2  christos 	  patch_addr = (start_addr + input_section->size
   9938  1.1.1.2  christos 			- relax_info->workaround_size);
   9939  1.1.1.2  christos 	  patch_addr = (patch_addr + 15) & -16;
   9940  1.1.1.2  christos 	  patch_off = patch_addr - start_addr;
   9941  1.1.1.2  christos 	  bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
   9942  1.1.1.2  christos 
   9943  1.1.1.2  christos 	  if (rel != NULL
   9944  1.1.1.2  christos 	      && rel->r_offset >= offset
   9945  1.1.1.3  christos 	      && rel->r_offset < offset + 4)
   9946  1.1.1.3  christos 	    {
   9947  1.1.1.3  christos 	      asection *sreloc;
   9948  1.1.1.3  christos 
   9949  1.1.1.3  christos 	      /* If the insn we are patching had a reloc, adjust the
   9950  1.1.1.3  christos 		 reloc r_offset so that the reloc applies to the moved
   9951  1.1.1.3  christos 		 location.  This matters for -r and --emit-relocs.  */
   9952  1.1.1.3  christos 	      if (rel + 1 != relend)
   9953  1.1.1.3  christos 		{
   9954  1.1.1.3  christos 		  Elf_Internal_Rela tmp = *rel;
   9955  1.1.1.3  christos 
   9956  1.1.1.3  christos 		  /* Keep the relocs sorted by r_offset.  */
   9957  1.1.1.3  christos 		  memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
   9958  1.1.1.3  christos 		  relend[-1] = tmp;
   9959  1.1.1.3  christos 		}
   9960  1.1.1.3  christos 	      relend[-1].r_offset += patch_off - offset;
   9961  1.1.1.3  christos 
   9962  1.1.1.3  christos 	      /* Adjust REL16 addends too.  */
   9963  1.1.1.3  christos 	      switch (ELF32_R_TYPE (relend[-1].r_info))
   9964  1.1.1.3  christos 		{
   9965  1.1.1.3  christos 		case R_PPC_REL16:
   9966  1.1.1.3  christos 		case R_PPC_REL16_LO:
   9967  1.1.1.3  christos 		case R_PPC_REL16_HI:
   9968  1.1.1.3  christos 		case R_PPC_REL16_HA:
   9969  1.1.1.3  christos 		  relend[-1].r_addend += patch_off - offset;
   9970  1.1.1.3  christos 		  break;
   9971  1.1.1.3  christos 		default:
   9972  1.1.1.3  christos 		  break;
   9973  1.1.1.3  christos 		}
   9974  1.1.1.3  christos 
   9975  1.1.1.3  christos 	      /* If we are building a PIE or shared library with
   9976  1.1.1.3  christos 		 non-PIC objects, perhaps we had a dynamic reloc too?
   9977  1.1.1.3  christos 		 If so, the dynamic reloc must move with the insn.  */
   9978  1.1.1.3  christos 	      sreloc = elf_section_data (input_section)->sreloc;
   9979  1.1.1.3  christos 	      if (sreloc != NULL)
   9980  1.1.1.3  christos 		{
   9981  1.1.1.3  christos 		  Elf32_External_Rela *slo, *shi, *srelend;
   9982  1.1.1.3  christos 		  bfd_vma soffset;
   9983  1.1.1.3  christos 
   9984  1.1.1.3  christos 		  slo = (Elf32_External_Rela *) sreloc->contents;
   9985  1.1.1.3  christos 		  shi = srelend = slo + sreloc->reloc_count;
   9986  1.1.1.3  christos 		  soffset = (offset + input_section->output_section->vma
   9987  1.1.1.3  christos 			     + input_section->output_offset);
   9988  1.1.1.3  christos 		  while (slo < shi)
   9989  1.1.1.3  christos 		    {
   9990  1.1.1.3  christos 		      Elf32_External_Rela *srel = slo + (shi - slo) / 2;
   9991  1.1.1.3  christos 		      bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
   9992  1.1.1.3  christos 						&outrel);
   9993  1.1.1.3  christos 		      if (outrel.r_offset < soffset)
   9994  1.1.1.3  christos 			slo = srel + 1;
   9995  1.1.1.3  christos 		      else if (outrel.r_offset > soffset + 3)
   9996  1.1.1.2  christos 			shi = srel;
   9997  1.1.1.2  christos 		      else
   9998  1.1.1.2  christos 			{
   9999  1.1.1.2  christos 			  if (srel + 1 != srelend)
   10000  1.1.1.2  christos 			    {
   10001  1.1.1.2  christos 			      memmove (srel, srel + 1,
   10002  1.1.1.2  christos 				       (srelend - (srel + 1)) * sizeof (*srel));
   10003  1.1.1.2  christos 			      srel = srelend - 1;
   10004  1.1.1.2  christos 			    }
   10005  1.1.1.2  christos 			  outrel.r_offset += patch_off - offset;
   10006  1.1.1.4  christos 			  bfd_elf32_swap_reloca_out (output_bfd, &outrel,
   10007  1.1.1.2  christos 						     (bfd_byte *) srel);
   10008  1.1.1.4  christos 			  break;
   10009  1.1.1.2  christos 			}
   10010  1.1.1.2  christos 		    }
   10011  1.1.1.2  christos 		}
   10012  1.1.1.2  christos 	    }
   10013  1.1.1.2  christos 	  else
   10014  1.1.1.2  christos 	    rel = NULL;
   10015  1.1.1.2  christos 
   10016  1.1.1.2  christos 	  if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
   10017  1.1.1.2  christos 	      && (insn & 2) == 0 /* relative */)
   10018  1.1.1.2  christos 	    {
   10019  1.1.1.2  christos 	      bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
   10020  1.1.1.2  christos 
   10021  1.1.1.2  christos 	      delta += offset - patch_off;
   10022  1.1.1.2  christos 	      if (bfd_link_relocatable (info) && rel != NULL)
   10023  1.1.1.2  christos 		delta = 0;
   10024  1.1.1.2  christos 	      if (!bfd_link_relocatable (info) && rel != NULL)
   10025  1.1.1.2  christos 		{
   10026  1.1.1.2  christos 		  enum elf_ppc_reloc_type r_type;
   10027  1.1.1.2  christos 
   10028  1.1.1.2  christos 		  r_type = ELF32_R_TYPE (relend[-1].r_info);
   10029  1.1.1.2  christos 		  if (r_type == R_PPC_REL14_BRTAKEN)
   10030  1.1.1.2  christos 		    insn |= BRANCH_PREDICT_BIT;
   10031  1.1.1.2  christos 		  else if (r_type == R_PPC_REL14_BRNTAKEN)
   10032  1.1.1.2  christos 		    insn &= ~BRANCH_PREDICT_BIT;
   10033  1.1.1.2  christos 		  else
   10034  1.1.1.2  christos 		    BFD_ASSERT (r_type == R_PPC_REL14);
   10035  1.1.1.2  christos 
   10036  1.1.1.2  christos 		  if ((r_type == R_PPC_REL14_BRTAKEN
   10037  1.1.1.2  christos 		       || r_type == R_PPC_REL14_BRNTAKEN)
   10038  1.1.1.2  christos 		      && delta + 0x8000 < 0x10000
   10039  1.1.1.2  christos 		      && (bfd_signed_vma) delta < 0)
   10040  1.1.1.2  christos 		    insn ^= BRANCH_PREDICT_BIT;
   10041  1.1.1.2  christos 		}
   10042  1.1.1.2  christos 	      if (delta + 0x8000 < 0x10000)
   10043  1.1.1.2  christos 		{
   10044  1.1.1.2  christos 		  bfd_put_32 (input_bfd,
   10045  1.1.1.2  christos 			      (insn & ~0xfffc) | (delta & 0xfffc),
   10046  1.1.1.2  christos 			      contents + patch_off);
   10047  1.1.1.2  christos 		  patch_off += 4;
   10048  1.1.1.2  christos 		  bfd_put_32 (input_bfd,
   10049  1.1.1.2  christos 			      B | ((offset + 4 - patch_off) & 0x3fffffc),
   10050  1.1.1.2  christos 			      contents + patch_off);
   10051  1.1.1.2  christos 		  patch_off += 4;
   10052  1.1.1.2  christos 		}
   10053  1.1.1.2  christos 	      else
   10054  1.1.1.2  christos 		{
   10055  1.1.1.2  christos 		  if (rel != NULL)
   10056  1.1.1.2  christos 		    {
   10057  1.1.1.2  christos 		      unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
   10058  1.1.1.2  christos 
   10059  1.1.1.2  christos 		      relend[-1].r_offset += 8;
   10060  1.1.1.2  christos 		      relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
   10061  1.1.1.2  christos 		    }
   10062  1.1.1.2  christos 		  bfd_put_32 (input_bfd,
   10063  1.1.1.2  christos 			      (insn & ~0xfffc) | 8,
   10064  1.1.1.2  christos 			      contents + patch_off);
   10065  1.1.1.2  christos 		  patch_off += 4;
   10066  1.1.1.2  christos 		  bfd_put_32 (input_bfd,
   10067  1.1.1.2  christos 			      B | ((offset + 4 - patch_off) & 0x3fffffc),
   10068  1.1.1.2  christos 			      contents + patch_off);
   10069  1.1.1.2  christos 		  patch_off += 4;
   10070  1.1.1.2  christos 		  bfd_put_32 (input_bfd,
   10071  1.1.1.2  christos 			      B | ((delta - 8) & 0x3fffffc),
   10072  1.1.1.2  christos 			      contents + patch_off);
   10073  1.1.1.2  christos 		  patch_off += 4;
   10074      1.1  christos 		}
   10075      1.1  christos 	    }
   10076      1.1  christos 	  else
   10077      1.1  christos 	    {
   10078      1.1  christos 	      bfd_put_32 (input_bfd, insn, contents + patch_off);
   10079      1.1  christos 	      patch_off += 4;
   10080      1.1  christos 	      bfd_put_32 (input_bfd,
   10081      1.1  christos 			  B | ((offset + 4 - patch_off) & 0x3fffffc),
   10082      1.1  christos 			  contents + patch_off);
   10083      1.1  christos 	      patch_off += 4;
   10084      1.1  christos 	    }
   10085      1.1  christos 	  BFD_ASSERT (patch_off <= input_section->size);
   10086      1.1  christos 	  relax_info->workaround_size = input_section->size - patch_off;
   10087      1.1  christos 	}
   10088      1.1  christos     }
   10089      1.1  christos 
   10090      1.1  christos   return ret;
   10091      1.1  christos }
   10092      1.1  christos 
   10093      1.1  christos /* Finish up dynamic symbol handling.  We set the contents of various
   10095      1.1  christos    dynamic sections here.  */
   10096      1.1  christos 
   10097      1.1  christos static bfd_boolean
   10098      1.1  christos ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
   10099      1.1  christos 			       struct bfd_link_info *info,
   10100      1.1  christos 			       struct elf_link_hash_entry *h,
   10101      1.1  christos 			       Elf_Internal_Sym *sym)
   10102      1.1  christos {
   10103      1.1  christos   struct ppc_elf_link_hash_table *htab;
   10104      1.1  christos   struct plt_entry *ent;
   10105      1.1  christos   bfd_boolean doneone;
   10106      1.1  christos 
   10107      1.1  christos #ifdef DEBUG
   10108      1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
   10109      1.1  christos 	   h->root.root.string);
   10110      1.1  christos #endif
   10111      1.1  christos 
   10112      1.1  christos   htab = ppc_elf_hash_table (info);
   10113      1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   10114      1.1  christos 
   10115      1.1  christos   doneone = FALSE;
   10116      1.1  christos   for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   10117      1.1  christos     if (ent->plt.offset != (bfd_vma) -1)
   10118      1.1  christos       {
   10119      1.1  christos 	if (!doneone)
   10120      1.1  christos 	  {
   10121      1.1  christos 	    Elf_Internal_Rela rela;
   10122      1.1  christos 	    bfd_byte *loc;
   10123      1.1  christos 	    bfd_vma reloc_index;
   10124      1.1  christos 
   10125      1.1  christos 	    if (htab->plt_type == PLT_NEW
   10126      1.1  christos 		|| !htab->elf.dynamic_sections_created
   10127      1.1  christos 		|| h->dynindx == -1)
   10128      1.1  christos 	      reloc_index = ent->plt.offset / 4;
   10129      1.1  christos 	    else
   10130      1.1  christos 	      {
   10131      1.1  christos 		reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
   10132      1.1  christos 			       / htab->plt_slot_size);
   10133      1.1  christos 		if (reloc_index > PLT_NUM_SINGLE_ENTRIES
   10134  1.1.1.4  christos 		    && htab->plt_type == PLT_OLD)
   10135      1.1  christos 		  reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
   10136      1.1  christos 	      }
   10137      1.1  christos 
   10138  1.1.1.4  christos 	    /* This symbol has an entry in the procedure linkage table.
   10139      1.1  christos 	       Set it up.  */
   10140      1.1  christos 	    if (htab->plt_type == PLT_VXWORKS
   10141      1.1  christos 		&& htab->elf.dynamic_sections_created
   10142  1.1.1.5  christos 		&& h->dynindx != -1)
   10143      1.1  christos 	      {
   10144      1.1  christos 		bfd_vma got_offset;
   10145  1.1.1.5  christos 		const bfd_vma *plt_entry;
   10146      1.1  christos 
   10147      1.1  christos 		/* The first three entries in .got.plt are reserved.  */
   10148      1.1  christos 		got_offset = (reloc_index + 3) * 4;
   10149      1.1  christos 
   10150      1.1  christos 		/* Use the right PLT. */
   10151      1.1  christos 		plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
   10152      1.1  christos 			    : ppc_elf_vxworks_plt_entry;
   10153  1.1.1.5  christos 
   10154      1.1  christos 		/* Fill in the .plt on VxWorks.  */
   10155      1.1  christos 		if (bfd_link_pic (info))
   10156  1.1.1.5  christos 		  {
   10157      1.1  christos 		    bfd_put_32 (output_bfd,
   10158      1.1  christos 				plt_entry[0] | PPC_HA (got_offset),
   10159      1.1  christos 				htab->elf.splt->contents + ent->plt.offset + 0);
   10160  1.1.1.5  christos 		    bfd_put_32 (output_bfd,
   10161      1.1  christos 				plt_entry[1] | PPC_LO (got_offset),
   10162  1.1.1.5  christos 				htab->elf.splt->contents + ent->plt.offset + 4);
   10163      1.1  christos 		  }
   10164      1.1  christos 		else
   10165      1.1  christos 		  {
   10166      1.1  christos 		    bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
   10167      1.1  christos 
   10168      1.1  christos 		    bfd_put_32 (output_bfd,
   10169      1.1  christos 				plt_entry[0] | PPC_HA (got_loc),
   10170      1.1  christos 				htab->elf.splt->contents + ent->plt.offset + 0);
   10171      1.1  christos 		    bfd_put_32 (output_bfd,
   10172  1.1.1.5  christos 				plt_entry[1] | PPC_LO (got_loc),
   10173      1.1  christos 				htab->elf.splt->contents + ent->plt.offset + 4);
   10174      1.1  christos 		  }
   10175      1.1  christos 
   10176      1.1  christos 		bfd_put_32 (output_bfd, plt_entry[2],
   10177      1.1  christos 			    htab->elf.splt->contents + ent->plt.offset + 8);
   10178      1.1  christos 		bfd_put_32 (output_bfd, plt_entry[3],
   10179      1.1  christos 			    htab->elf.splt->contents + ent->plt.offset + 12);
   10180      1.1  christos 
   10181      1.1  christos 		/* This instruction is an immediate load.  The value loaded is
   10182  1.1.1.5  christos 		   the byte offset of the R_PPC_JMP_SLOT relocation from the
   10183      1.1  christos 		   start of the .rela.plt section.  The value is stored in the
   10184  1.1.1.5  christos 		   low-order 16 bits of the load instruction.  */
   10185      1.1  christos 		/* NOTE: It appears that this is now an index rather than a
   10186  1.1.1.5  christos 		   prescaled offset.  */
   10187      1.1  christos 		bfd_put_32 (output_bfd,
   10188      1.1  christos 			    plt_entry[4] | reloc_index,
   10189      1.1  christos 			    htab->elf.splt->contents + ent->plt.offset + 16);
   10190      1.1  christos 		/* This instruction is a PC-relative branch whose target is
   10191  1.1.1.5  christos 		   the start of the PLT section.  The address of this branch
   10192  1.1.1.5  christos 		   instruction is 20 bytes beyond the start of this PLT entry.
   10193      1.1  christos 		   The address is encoded in bits 6-29, inclusive.  The value
   10194  1.1.1.5  christos 		   stored is right-shifted by two bits, permitting a 26-bit
   10195      1.1  christos 		   offset.  */
   10196  1.1.1.4  christos 		bfd_put_32 (output_bfd,
   10197      1.1  christos 			    (plt_entry[5]
   10198      1.1  christos 			     | (-(ent->plt.offset + 20) & 0x03fffffc)),
   10199      1.1  christos 			    htab->elf.splt->contents + ent->plt.offset + 20);
   10200      1.1  christos 		bfd_put_32 (output_bfd, plt_entry[6],
   10201      1.1  christos 			    htab->elf.splt->contents + ent->plt.offset + 24);
   10202      1.1  christos 		bfd_put_32 (output_bfd, plt_entry[7],
   10203      1.1  christos 			    htab->elf.splt->contents + ent->plt.offset + 28);
   10204      1.1  christos 
   10205  1.1.1.5  christos 		/* Fill in the GOT entry corresponding to this PLT slot with
   10206  1.1.1.5  christos 		   the address immediately after the "bctr" instruction
   10207      1.1  christos 		   in this PLT entry.  */
   10208      1.1  christos 		bfd_put_32 (output_bfd, (htab->elf.splt->output_section->vma
   10209      1.1  christos 					 + htab->elf.splt->output_offset
   10210      1.1  christos 					 + ent->plt.offset + 16),
   10211      1.1  christos 			    htab->elf.sgotplt->contents + got_offset);
   10212      1.1  christos 
   10213      1.1  christos 		if (!bfd_link_pic (info))
   10214      1.1  christos 		  {
   10215  1.1.1.5  christos 		    /* Fill in a couple of entries in .rela.plt.unloaded.  */
   10216  1.1.1.5  christos 		    loc = htab->srelplt2->contents
   10217      1.1  christos 		      + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
   10218      1.1  christos 			  * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
   10219      1.1  christos 			 * sizeof (Elf32_External_Rela));
   10220      1.1  christos 
   10221      1.1  christos 		    /* Provide the @ha relocation for the first instruction.  */
   10222      1.1  christos 		    rela.r_offset = (htab->elf.splt->output_section->vma
   10223      1.1  christos 				     + htab->elf.splt->output_offset
   10224      1.1  christos 				     + ent->plt.offset + 2);
   10225      1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   10226  1.1.1.5  christos 						R_PPC_ADDR16_HA);
   10227  1.1.1.5  christos 		    rela.r_addend = got_offset;
   10228      1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10229      1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   10230      1.1  christos 
   10231      1.1  christos 		    /* Provide the @l relocation for the second instruction.  */
   10232      1.1  christos 		    rela.r_offset = (htab->elf.splt->output_section->vma
   10233      1.1  christos 				     + htab->elf.splt->output_offset
   10234      1.1  christos 				     + ent->plt.offset + 6);
   10235      1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   10236      1.1  christos 						R_PPC_ADDR16_LO);
   10237      1.1  christos 		    rela.r_addend = got_offset;
   10238      1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10239      1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   10240  1.1.1.5  christos 
   10241  1.1.1.5  christos 		    /* Provide a relocation for the GOT entry corresponding to this
   10242      1.1  christos 		       PLT slot.  Point it at the middle of the .plt entry.  */
   10243      1.1  christos 		    rela.r_offset = (htab->elf.sgotplt->output_section->vma
   10244      1.1  christos 				     + htab->elf.sgotplt->output_offset
   10245      1.1  christos 				     + got_offset);
   10246      1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
   10247  1.1.1.5  christos 						R_PPC_ADDR32);
   10248      1.1  christos 		    rela.r_addend = ent->plt.offset + 16;
   10249      1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10250  1.1.1.5  christos 		  }
   10251      1.1  christos 
   10252      1.1  christos 		/* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
   10253      1.1  christos 		   In particular, the offset for the relocation is not the
   10254      1.1  christos 		   address of the PLT entry for this function, as specified
   10255      1.1  christos 		   by the ABI.  Instead, the offset is set to the address of
   10256      1.1  christos 		   the GOT slot for this function.  See EABI 4.4.4.1.  */
   10257      1.1  christos 		rela.r_offset = (htab->elf.sgotplt->output_section->vma
   10258      1.1  christos 				 + htab->elf.sgotplt->output_offset
   10259      1.1  christos 				 + got_offset);
   10260      1.1  christos 
   10261      1.1  christos 	      }
   10262      1.1  christos 	    else
   10263      1.1  christos 	      {
   10264      1.1  christos 		asection *splt = htab->elf.splt;
   10265      1.1  christos 		if (!htab->elf.dynamic_sections_created
   10266      1.1  christos 		    || h->dynindx == -1)
   10267      1.1  christos 		  splt = htab->elf.iplt;
   10268      1.1  christos 
   10269      1.1  christos 		rela.r_offset = (splt->output_section->vma
   10270      1.1  christos 				 + splt->output_offset
   10271      1.1  christos 				 + ent->plt.offset);
   10272      1.1  christos 		if (htab->plt_type == PLT_OLD
   10273      1.1  christos 		    || !htab->elf.dynamic_sections_created
   10274      1.1  christos 		    || h->dynindx == -1)
   10275      1.1  christos 		  {
   10276      1.1  christos 		    /* We don't need to fill in the .plt.  The ppc dynamic
   10277      1.1  christos 		       linker will fill it in.  */
   10278      1.1  christos 		  }
   10279      1.1  christos 		else
   10280      1.1  christos 		  {
   10281      1.1  christos 		    bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
   10282      1.1  christos 				   + htab->glink->output_section->vma
   10283      1.1  christos 				   + htab->glink->output_offset);
   10284      1.1  christos 		    bfd_put_32 (output_bfd, val,
   10285      1.1  christos 				splt->contents + ent->plt.offset);
   10286      1.1  christos 		  }
   10287      1.1  christos 	      }
   10288      1.1  christos 
   10289  1.1.1.5  christos 	    /* Fill in the entry in the .rela.plt section.  */
   10290  1.1.1.5  christos 	    rela.r_addend = 0;
   10291  1.1.1.5  christos 	    if (!htab->elf.dynamic_sections_created
   10292  1.1.1.5  christos 		|| h->dynindx == -1)
   10293  1.1.1.5  christos 	      {
   10294  1.1.1.5  christos 		BFD_ASSERT (h->type == STT_GNU_IFUNC
   10295      1.1  christos 			    && h->def_regular
   10296  1.1.1.5  christos 			    && (h->root.type == bfd_link_hash_defined
   10297  1.1.1.5  christos 				|| h->root.type == bfd_link_hash_defweak));
   10298  1.1.1.5  christos 		rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   10299  1.1.1.5  christos 		rela.r_addend = SYM_VAL (h);
   10300  1.1.1.5  christos 	      }
   10301  1.1.1.5  christos 	    else
   10302      1.1  christos 	      rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
   10303      1.1  christos 
   10304      1.1  christos 	    if (!htab->elf.dynamic_sections_created
   10305      1.1  christos 		|| h->dynindx == -1)
   10306      1.1  christos 	      {
   10307      1.1  christos 		loc = (htab->elf.irelplt->contents
   10308      1.1  christos 		       + (htab->elf.irelplt->reloc_count++
   10309      1.1  christos 			  * sizeof (Elf32_External_Rela)));
   10310      1.1  christos 		htab->local_ifunc_resolver = 1;
   10311      1.1  christos 	      }
   10312      1.1  christos 	    else
   10313      1.1  christos 	      {
   10314      1.1  christos 		loc = (htab->elf.srelplt->contents
   10315      1.1  christos 		       + reloc_index * sizeof (Elf32_External_Rela));
   10316      1.1  christos 		if (h->type == STT_GNU_IFUNC && is_static_defined (h))
   10317      1.1  christos 		  htab->maybe_local_ifunc_resolver = 1;
   10318      1.1  christos 	      }
   10319      1.1  christos 	    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10320      1.1  christos 
   10321      1.1  christos 	    if (!h->def_regular)
   10322      1.1  christos 	      {
   10323      1.1  christos 		/* Mark the symbol as undefined, rather than as
   10324      1.1  christos 		   defined in the .plt section.  Leave the value if
   10325  1.1.1.4  christos 		   there were any relocations where pointer equality
   10326      1.1  christos 		   matters (this is a clue for the dynamic linker, to
   10327      1.1  christos 		   make function pointer comparisons work between an
   10328      1.1  christos 		   application and shared library), otherwise set it
   10329      1.1  christos 		   to zero.  */
   10330      1.1  christos 		sym->st_shndx = SHN_UNDEF;
   10331      1.1  christos 		if (!h->pointer_equality_needed)
   10332      1.1  christos 		  sym->st_value = 0;
   10333      1.1  christos 		else if (!h->ref_regular_nonweak)
   10334      1.1  christos 		  {
   10335      1.1  christos 		    /* This breaks function pointer comparisons, but
   10336      1.1  christos 		       that is better than breaking tests for a NULL
   10337      1.1  christos 		       function pointer.  */
   10338      1.1  christos 		    sym->st_value = 0;
   10339      1.1  christos 		  }
   10340      1.1  christos 	      }
   10341      1.1  christos 	    else if (h->type == STT_GNU_IFUNC
   10342      1.1  christos 		     && !bfd_link_pic (info))
   10343      1.1  christos 	      {
   10344      1.1  christos 		/* Set the value of ifunc symbols in a non-pie
   10345      1.1  christos 		   executable to the glink entry.  This is to avoid
   10346      1.1  christos 		   text relocations.  We can't do this for ifunc in
   10347      1.1  christos 		   allocate_dynrelocs, as we do for normal dynamic
   10348  1.1.1.5  christos 		   function symbols with plt entries, because we need
   10349      1.1  christos 		   to keep the original value around for the ifunc
   10350      1.1  christos 		   relocation.  */
   10351  1.1.1.5  christos 		sym->st_shndx = (_bfd_elf_section_from_bfd_section
   10352      1.1  christos 				 (output_bfd, htab->glink->output_section));
   10353      1.1  christos 		sym->st_value = (ent->glink_offset
   10354      1.1  christos 				 + htab->glink->output_offset
   10355  1.1.1.2  christos 				 + htab->glink->output_section->vma);
   10356      1.1  christos 	      }
   10357      1.1  christos 	    doneone = TRUE;
   10358      1.1  christos 	  }
   10359      1.1  christos 
   10360      1.1  christos 	if (htab->plt_type == PLT_NEW
   10361      1.1  christos 	    || !htab->elf.dynamic_sections_created
   10362      1.1  christos 	    || h->dynindx == -1)
   10363      1.1  christos 	  {
   10364      1.1  christos 	    unsigned char *p;
   10365      1.1  christos 	    asection *splt = htab->elf.splt;
   10366      1.1  christos 	    if (!htab->elf.dynamic_sections_created
   10367      1.1  christos 		|| h->dynindx == -1)
   10368      1.1  christos 	      splt = htab->elf.iplt;
   10369      1.1  christos 
   10370      1.1  christos 	    p = (unsigned char *) htab->glink->contents + ent->glink_offset;
   10371      1.1  christos 
   10372      1.1  christos 	    if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
   10373      1.1  christos 	      {
   10374      1.1  christos 		bfd_put_32 (output_bfd, LWZ_11_3, p);
   10375      1.1  christos 		p += 4;
   10376      1.1  christos 		bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
   10377  1.1.1.4  christos 		p += 4;
   10378      1.1  christos 		bfd_put_32 (output_bfd, MR_0_3, p);
   10379      1.1  christos 		p += 4;
   10380      1.1  christos 		bfd_put_32 (output_bfd, CMPWI_11_0, p);
   10381      1.1  christos 		p += 4;
   10382      1.1  christos 		bfd_put_32 (output_bfd, ADD_3_12_2, p);
   10383      1.1  christos 		p += 4;
   10384      1.1  christos 		bfd_put_32 (output_bfd, BEQLR, p);
   10385      1.1  christos 		p += 4;
   10386      1.1  christos 		bfd_put_32 (output_bfd, MR_3_0, p);
   10387      1.1  christos 		p += 4;
   10388      1.1  christos 		bfd_put_32 (output_bfd, NOP, p);
   10389      1.1  christos 		p += 4;
   10390      1.1  christos 	      }
   10391      1.1  christos 
   10392      1.1  christos 	    write_glink_stub (ent, splt, p, info);
   10393      1.1  christos 
   10394      1.1  christos 	    if (!bfd_link_pic (info))
   10395      1.1  christos 	      /* We only need one non-PIC glink stub.  */
   10396      1.1  christos 	      break;
   10397      1.1  christos 	  }
   10398      1.1  christos 	else
   10399      1.1  christos 	  break;
   10400      1.1  christos       }
   10401  1.1.1.5  christos 
   10402  1.1.1.5  christos   if (h->needs_copy)
   10403      1.1  christos     {
   10404  1.1.1.5  christos       asection *s;
   10405      1.1  christos       Elf_Internal_Rela rela;
   10406      1.1  christos       bfd_byte *loc;
   10407      1.1  christos 
   10408      1.1  christos       /* This symbols needs a copy reloc.  Set it up.  */
   10409      1.1  christos 
   10410      1.1  christos #ifdef DEBUG
   10411      1.1  christos       fprintf (stderr, ", copy");
   10412      1.1  christos #endif
   10413      1.1  christos 
   10414      1.1  christos       BFD_ASSERT (h->dynindx != -1);
   10415      1.1  christos 
   10416      1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   10417      1.1  christos 	s = htab->relsbss;
   10418      1.1  christos       else if (h->root.u.def.section == htab->elf.sdynrelro)
   10419      1.1  christos 	s = htab->elf.sreldynrelro;
   10420      1.1  christos       else
   10421      1.1  christos 	s = htab->elf.srelbss;
   10422      1.1  christos       BFD_ASSERT (s != NULL);
   10423      1.1  christos 
   10424      1.1  christos       rela.r_offset = SYM_VAL (h);
   10425      1.1  christos       rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
   10426      1.1  christos       rela.r_addend = 0;
   10427      1.1  christos       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
   10428  1.1.1.5  christos       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10429      1.1  christos     }
   10430      1.1  christos 
   10431      1.1  christos #ifdef DEBUG
   10432      1.1  christos   fprintf (stderr, "\n");
   10433      1.1  christos #endif
   10434      1.1  christos 
   10435      1.1  christos   return TRUE;
   10436      1.1  christos }
   10437      1.1  christos 
   10438      1.1  christos static enum elf_reloc_type_class
   10440      1.1  christos ppc_elf_reloc_type_class (const struct bfd_link_info *info,
   10441      1.1  christos 			  const asection *rel_sec,
   10442      1.1  christos 			  const Elf_Internal_Rela *rela)
   10443      1.1  christos {
   10444      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   10445      1.1  christos 
   10446      1.1  christos   if (rel_sec == htab->elf.irelplt)
   10447      1.1  christos     return reloc_class_ifunc;
   10448      1.1  christos 
   10449      1.1  christos   switch (ELF32_R_TYPE (rela->r_info))
   10450      1.1  christos     {
   10451      1.1  christos     case R_PPC_RELATIVE:
   10452      1.1  christos       return reloc_class_relative;
   10453      1.1  christos     case R_PPC_JMP_SLOT:
   10454      1.1  christos       return reloc_class_plt;
   10455      1.1  christos     case R_PPC_COPY:
   10456      1.1  christos       return reloc_class_copy;
   10457      1.1  christos     default:
   10458      1.1  christos       return reloc_class_normal;
   10459      1.1  christos     }
   10460      1.1  christos }
   10461  1.1.1.5  christos 
   10462      1.1  christos /* Finish up the dynamic sections.  */
   10464      1.1  christos 
   10465      1.1  christos static bfd_boolean
   10466      1.1  christos ppc_elf_finish_dynamic_sections (bfd *output_bfd,
   10467      1.1  christos 				 struct bfd_link_info *info)
   10468      1.1  christos {
   10469      1.1  christos   asection *sdyn;
   10470      1.1  christos   struct ppc_elf_link_hash_table *htab;
   10471      1.1  christos   bfd_vma got;
   10472  1.1.1.5  christos   bfd *dynobj;
   10473      1.1  christos   bfd_boolean ret = TRUE;
   10474      1.1  christos 
   10475      1.1  christos #ifdef DEBUG
   10476      1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
   10477      1.1  christos #endif
   10478      1.1  christos 
   10479      1.1  christos   htab = ppc_elf_hash_table (info);
   10480      1.1  christos   dynobj = htab->elf.dynobj;
   10481      1.1  christos   sdyn = bfd_get_linker_section (dynobj, ".dynamic");
   10482      1.1  christos 
   10483      1.1  christos   got = 0;
   10484      1.1  christos   if (htab->elf.hgot != NULL)
   10485      1.1  christos     got = SYM_VAL (htab->elf.hgot);
   10486      1.1  christos 
   10487  1.1.1.5  christos   if (htab->elf.dynamic_sections_created)
   10488      1.1  christos     {
   10489  1.1.1.5  christos       Elf32_External_Dyn *dyncon, *dynconend;
   10490      1.1  christos 
   10491      1.1  christos       BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
   10492      1.1  christos 
   10493      1.1  christos       dyncon = (Elf32_External_Dyn *) sdyn->contents;
   10494  1.1.1.5  christos       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
   10495      1.1  christos       for (; dyncon < dynconend; dyncon++)
   10496      1.1  christos 	{
   10497      1.1  christos 	  Elf_Internal_Dyn dyn;
   10498  1.1.1.5  christos 	  asection *s;
   10499      1.1  christos 
   10500      1.1  christos 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
   10501      1.1  christos 
   10502      1.1  christos 	  switch (dyn.d_tag)
   10503      1.1  christos 	    {
   10504      1.1  christos 	    case DT_PLTGOT:
   10505      1.1  christos 	      if (htab->is_vxworks)
   10506  1.1.1.5  christos 		s = htab->elf.sgotplt;
   10507  1.1.1.5  christos 	      else
   10508  1.1.1.5  christos 		s = htab->elf.splt;
   10509  1.1.1.5  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   10510  1.1.1.5  christos 	      break;
   10511  1.1.1.5  christos 
   10512  1.1.1.5  christos 	    case DT_PLTRELSZ:
   10513  1.1.1.5  christos 	      dyn.d_un.d_val = htab->elf.srelplt->size;
   10514  1.1.1.5  christos 	      break;
   10515      1.1  christos 
   10516      1.1  christos 	    case DT_JMPREL:
   10517      1.1  christos 	      s = htab->elf.srelplt;
   10518      1.1  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   10519      1.1  christos 	      break;
   10520      1.1  christos 
   10521      1.1  christos 	    case DT_PPC_GOT:
   10522      1.1  christos 	      dyn.d_un.d_ptr = got;
   10523      1.1  christos 	      break;
   10524      1.1  christos 
   10525      1.1  christos 	    case DT_TEXTREL:
   10526      1.1  christos 	      if (htab->local_ifunc_resolver)
   10527      1.1  christos 		info->callbacks->einfo
   10528  1.1.1.5  christos 		  (_("%X%P: text relocations and GNU indirect "
   10529  1.1.1.5  christos 		     "functions will result in a segfault at runtime\n"));
   10530      1.1  christos 	      else if (htab->maybe_local_ifunc_resolver)
   10531  1.1.1.5  christos 		info->callbacks->einfo
   10532  1.1.1.5  christos 		  (_("%P: warning: text relocations and GNU indirect "
   10533      1.1  christos 		     "functions may result in a segfault at runtime\n"));
   10534      1.1  christos 	      continue;
   10535      1.1  christos 
   10536      1.1  christos 	    default:
   10537      1.1  christos 	      if (htab->is_vxworks
   10538      1.1  christos 		  && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
   10539      1.1  christos 		break;
   10540      1.1  christos 	      continue;
   10541      1.1  christos 	    }
   10542      1.1  christos 
   10543      1.1  christos 	  bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   10544      1.1  christos 	}
   10545      1.1  christos     }
   10546      1.1  christos 
   10547      1.1  christos   if (htab->elf.sgot != NULL
   10548      1.1  christos       && htab->elf.sgot->output_section != bfd_abs_section_ptr)
   10549      1.1  christos     {
   10550      1.1  christos       if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
   10551      1.1  christos 	  || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
   10552      1.1  christos 	{
   10553      1.1  christos 	  unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
   10554      1.1  christos 
   10555      1.1  christos 	  p += htab->elf.hgot->root.u.def.value;
   10556      1.1  christos 	  if (htab->plt_type == PLT_OLD)
   10557  1.1.1.5  christos 	    {
   10558      1.1  christos 	      /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
   10559      1.1  christos 		 so that a function can easily find the address of
   10560  1.1.1.5  christos 		 _GLOBAL_OFFSET_TABLE_.  */
   10561  1.1.1.5  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
   10562  1.1.1.5  christos 			  < htab->elf.hgot->root.u.def.section->size);
   10563      1.1  christos 	      bfd_put_32 (output_bfd, 0x4e800021, p - 4);
   10564      1.1  christos 	    }
   10565      1.1  christos 
   10566      1.1  christos 	  if (sdyn != NULL)
   10567  1.1.1.5  christos 	    {
   10568      1.1  christos 	      bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
   10569      1.1  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value
   10570      1.1  christos 			  < htab->elf.hgot->root.u.def.section->size);
   10571  1.1.1.5  christos 	      bfd_put_32 (output_bfd, val, p);
   10572  1.1.1.5  christos 	    }
   10573  1.1.1.5  christos 	}
   10574  1.1.1.5  christos       else
   10575      1.1  christos 	{
   10576  1.1.1.5  christos 	  /* xgettext:c-format */
   10577      1.1  christos 	  info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
   10578  1.1.1.4  christos 				  htab->elf.hgot->root.root.string,
   10579      1.1  christos 				  (htab->elf.sgotplt != NULL
   10580      1.1  christos 				   ? htab->elf.sgotplt->name
   10581      1.1  christos 				   : htab->elf.sgot->name));
   10582  1.1.1.4  christos 	  bfd_set_error (bfd_error_bad_value);
   10583      1.1  christos 	  ret = FALSE;
   10584      1.1  christos 	}
   10585      1.1  christos 
   10586      1.1  christos       elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
   10587      1.1  christos     }
   10588      1.1  christos 
   10589      1.1  christos   /* Fill in the first entry in the VxWorks procedure linkage table.  */
   10590      1.1  christos   if (htab->is_vxworks
   10591      1.1  christos       && htab->elf.splt != NULL
   10592      1.1  christos       && htab->elf.splt->size != 0
   10593      1.1  christos       && htab->elf.splt->output_section != bfd_abs_section_ptr)
   10594      1.1  christos     {
   10595      1.1  christos       asection *splt = htab->elf.splt;
   10596      1.1  christos       /* Use the right PLT. */
   10597      1.1  christos       const bfd_vma *plt_entry = (bfd_link_pic (info)
   10598      1.1  christos 				  ? ppc_elf_vxworks_pic_plt0_entry
   10599      1.1  christos 				  : ppc_elf_vxworks_plt0_entry);
   10600      1.1  christos 
   10601      1.1  christos       if (!bfd_link_pic (info))
   10602      1.1  christos 	{
   10603  1.1.1.4  christos 	  bfd_vma got_value = SYM_VAL (htab->elf.hgot);
   10604      1.1  christos 
   10605      1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
   10606      1.1  christos 		      splt->contents +  0);
   10607      1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
   10608      1.1  christos 		      splt->contents +  4);
   10609      1.1  christos 	}
   10610      1.1  christos       else
   10611  1.1.1.5  christos 	{
   10612  1.1.1.5  christos 	  bfd_put_32 (output_bfd, plt_entry[0], splt->contents +  0);
   10613      1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1], splt->contents +  4);
   10614      1.1  christos 	}
   10615      1.1  christos       bfd_put_32 (output_bfd, plt_entry[2], splt->contents +  8);
   10616      1.1  christos       bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
   10617      1.1  christos       bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
   10618      1.1  christos       bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
   10619      1.1  christos       bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
   10620  1.1.1.5  christos       bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
   10621  1.1.1.5  christos 
   10622      1.1  christos       if (! bfd_link_pic (info))
   10623      1.1  christos 	{
   10624      1.1  christos 	  Elf_Internal_Rela rela;
   10625      1.1  christos 	  bfd_byte *loc;
   10626      1.1  christos 
   10627      1.1  christos 	  loc = htab->srelplt2->contents;
   10628      1.1  christos 
   10629      1.1  christos 	  /* Output the @ha relocation for the first instruction.  */
   10630      1.1  christos 	  rela.r_offset = (htab->elf.splt->output_section->vma
   10631      1.1  christos 			   + htab->elf.splt->output_offset
   10632      1.1  christos 			   + 2);
   10633      1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   10634      1.1  christos 	  rela.r_addend = 0;
   10635      1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10636      1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   10637      1.1  christos 
   10638      1.1  christos 	  /* Output the @l relocation for the second instruction.  */
   10639      1.1  christos 	  rela.r_offset = (htab->elf.splt->output_section->vma
   10640      1.1  christos 			   + htab->elf.splt->output_offset
   10641      1.1  christos 			   + 6);
   10642      1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   10643      1.1  christos 	  rela.r_addend = 0;
   10644      1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10645      1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   10646      1.1  christos 
   10647      1.1  christos 	  /* Fix up the remaining relocations.  They may have the wrong
   10648      1.1  christos 	     symbol index for _G_O_T_ or _P_L_T_ depending on the order
   10649      1.1  christos 	     in which symbols were output.  */
   10650      1.1  christos 	  while (loc < htab->srelplt2->contents + htab->srelplt2->size)
   10651      1.1  christos 	    {
   10652      1.1  christos 	      Elf_Internal_Rela rel;
   10653      1.1  christos 
   10654      1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10655      1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   10656      1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10657      1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10658      1.1  christos 
   10659      1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10660      1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   10661      1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10662      1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10663      1.1  christos 
   10664      1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10665      1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
   10666      1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10667      1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10668      1.1  christos 	    }
   10669      1.1  christos 	}
   10670      1.1  christos     }
   10671      1.1  christos 
   10672      1.1  christos   if (htab->glink != NULL
   10673      1.1  christos       && htab->glink->contents != NULL
   10674      1.1  christos       && htab->elf.dynamic_sections_created)
   10675      1.1  christos     {
   10676      1.1  christos       unsigned char *p;
   10677      1.1  christos       unsigned char *endp;
   10678      1.1  christos       bfd_vma res0;
   10679      1.1  christos       unsigned int i;
   10680      1.1  christos 
   10681      1.1  christos       /*
   10682      1.1  christos        * PIC glink code is the following:
   10683      1.1  christos        *
   10684      1.1  christos        * # ith PLT code stub.
   10685      1.1  christos        *   addis 11,30,(plt+(i-1)*4-got)@ha
   10686      1.1  christos        *   lwz 11,(plt+(i-1)*4-got)@l(11)
   10687      1.1  christos        *   mtctr 11
   10688      1.1  christos        *   bctr
   10689      1.1  christos        *
   10690      1.1  christos        * # A table of branches, one for each plt entry.
   10691      1.1  christos        * # The idea is that the plt call stub loads ctr and r11 with these
   10692      1.1  christos        * # addresses, so (r11 - res_0) gives the plt index * 4.
   10693      1.1  christos        * res_0:	b PLTresolve
   10694      1.1  christos        * res_1:	b PLTresolve
   10695      1.1  christos        * .
   10696      1.1  christos        * # Some number of entries towards the end can be nops
   10697      1.1  christos        * res_n_m3: nop
   10698      1.1  christos        * res_n_m2: nop
   10699      1.1  christos        * res_n_m1:
   10700      1.1  christos        *
   10701      1.1  christos        * PLTresolve:
   10702      1.1  christos        *    addis 11,11,(1f-res_0)@ha
   10703      1.1  christos        *    mflr 0
   10704      1.1  christos        *    bcl 20,31,1f
   10705      1.1  christos        * 1: addi 11,11,(1b-res_0)@l
   10706      1.1  christos        *    mflr 12
   10707      1.1  christos        *    mtlr 0
   10708      1.1  christos        *    sub 11,11,12                # r11 = index * 4
   10709      1.1  christos        *    addis 12,12,(got+4-1b)@ha
   10710      1.1  christos        *    lwz 0,(got+4-1b)@l(12)      # got[1] address of dl_runtime_resolve
   10711      1.1  christos        *    lwz 12,(got+8-1b)@l(12)     # got[2] contains the map address
   10712      1.1  christos        *    mtctr 0
   10713      1.1  christos        *    add 0,11,11
   10714      1.1  christos        *    add 11,0,11                 # r11 = index * 12 = reloc offset.
   10715      1.1  christos        *    bctr
   10716      1.1  christos        */
   10717      1.1  christos       static const unsigned int pic_plt_resolve[] =
   10718      1.1  christos 	{
   10719      1.1  christos 	  ADDIS_11_11,
   10720      1.1  christos 	  MFLR_0,
   10721      1.1  christos 	  BCL_20_31,
   10722      1.1  christos 	  ADDI_11_11,
   10723      1.1  christos 	  MFLR_12,
   10724      1.1  christos 	  MTLR_0,
   10725      1.1  christos 	  SUB_11_11_12,
   10726      1.1  christos 	  ADDIS_12_12,
   10727      1.1  christos 	  LWZ_0_12,
   10728      1.1  christos 	  LWZ_12_12,
   10729      1.1  christos 	  MTCTR_0,
   10730      1.1  christos 	  ADD_0_11_11,
   10731      1.1  christos 	  ADD_11_0_11,
   10732      1.1  christos 	  BCTR,
   10733      1.1  christos 	  NOP,
   10734      1.1  christos 	  NOP
   10735      1.1  christos 	};
   10736      1.1  christos 
   10737      1.1  christos       /*
   10738      1.1  christos        * Non-PIC glink code is a little simpler.
   10739      1.1  christos        *
   10740      1.1  christos        * # ith PLT code stub.
   10741      1.1  christos        *   lis 11,(plt+(i-1)*4)@ha
   10742      1.1  christos        *   lwz 11,(plt+(i-1)*4)@l(11)
   10743      1.1  christos        *   mtctr 11
   10744      1.1  christos        *   bctr
   10745      1.1  christos        *
   10746      1.1  christos        * The branch table is the same, then comes
   10747      1.1  christos        *
   10748      1.1  christos        * PLTresolve:
   10749      1.1  christos        *    lis 12,(got+4)@ha
   10750      1.1  christos        *    addis 11,11,(-res_0)@ha
   10751      1.1  christos        *    lwz 0,(got+4)@l(12)         # got[1] address of dl_runtime_resolve
   10752      1.1  christos        *    addi 11,11,(-res_0)@l       # r11 = index * 4
   10753      1.1  christos        *    mtctr 0
   10754      1.1  christos        *    add 0,11,11
   10755      1.1  christos        *    lwz 12,(got+8)@l(12)        # got[2] contains the map address
   10756      1.1  christos        *    add 11,0,11                 # r11 = index * 12 = reloc offset.
   10757      1.1  christos        *    bctr
   10758      1.1  christos        */
   10759      1.1  christos       static const unsigned int plt_resolve[] =
   10760      1.1  christos 	{
   10761      1.1  christos 	  LIS_12,
   10762      1.1  christos 	  ADDIS_11_11,
   10763      1.1  christos 	  LWZ_0_12,
   10764      1.1  christos 	  ADDI_11_11,
   10765      1.1  christos 	  MTCTR_0,
   10766      1.1  christos 	  ADD_0_11_11,
   10767      1.1  christos 	  LWZ_12_12,
   10768      1.1  christos 	  ADD_11_0_11,
   10769      1.1  christos 	  BCTR,
   10770      1.1  christos 	  NOP,
   10771  1.1.1.2  christos 	  NOP,
   10772      1.1  christos 	  NOP,
   10773      1.1  christos 	  NOP,
   10774      1.1  christos 	  NOP,
   10775      1.1  christos 	  NOP,
   10776      1.1  christos 	  NOP
   10777      1.1  christos 	};
   10778      1.1  christos 
   10779      1.1  christos       if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
   10780      1.1  christos 	abort ();
   10781      1.1  christos       if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
   10782      1.1  christos 	abort ();
   10783      1.1  christos 
   10784      1.1  christos       /* Build the branch table, one for each plt entry (less one),
   10785      1.1  christos 	 and perhaps some padding.  */
   10786  1.1.1.2  christos       p = htab->glink->contents;
   10787  1.1.1.2  christos       p += htab->glink_pltresolve;
   10788  1.1.1.2  christos       endp = htab->glink->contents;
   10789  1.1.1.2  christos       endp += htab->glink->size - GLINK_PLTRESOLVE;
   10790  1.1.1.2  christos       while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
   10791  1.1.1.2  christos 	{
   10792  1.1.1.2  christos 	  bfd_put_32 (output_bfd, B + endp - p, p);
   10793  1.1.1.2  christos 	  p += 4;
   10794  1.1.1.2  christos 	}
   10795  1.1.1.2  christos       while (p < endp)
   10796  1.1.1.2  christos 	{
   10797  1.1.1.2  christos 	  bfd_put_32 (output_bfd, NOP, p);
   10798  1.1.1.2  christos 	  p += 4;
   10799  1.1.1.2  christos 	}
   10800  1.1.1.2  christos 
   10801  1.1.1.2  christos       res0 = (htab->glink_pltresolve
   10802  1.1.1.2  christos 	      + htab->glink->output_section->vma
   10803  1.1.1.2  christos 	      + htab->glink->output_offset);
   10804  1.1.1.2  christos 
   10805  1.1.1.2  christos       if (htab->params->ppc476_workaround)
   10806  1.1.1.2  christos 	{
   10807  1.1.1.2  christos 	  /* Ensure that a call stub at the end of a page doesn't
   10808  1.1.1.2  christos 	     result in prefetch over the end of the page into the
   10809  1.1.1.2  christos 	     glink branch table.  */
   10810  1.1.1.2  christos 	  bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   10811  1.1.1.2  christos 	  bfd_vma page_addr;
   10812  1.1.1.2  christos 	  bfd_vma glink_start = (htab->glink->output_section->vma
   10813  1.1.1.2  christos 				 + htab->glink->output_offset);
   10814  1.1.1.2  christos 
   10815  1.1.1.2  christos 	  for (page_addr = res0 & -pagesize;
   10816  1.1.1.2  christos 	       page_addr > glink_start;
   10817  1.1.1.2  christos 	       page_addr -= pagesize)
   10818  1.1.1.2  christos 	    {
   10819      1.1  christos 	      /* We have a plt call stub that may need fixing.  */
   10820  1.1.1.4  christos 	      bfd_byte *loc;
   10821      1.1  christos 	      unsigned int insn;
   10822      1.1  christos 
   10823      1.1  christos 	      loc = htab->glink->contents + page_addr - 4 - glink_start;
   10824      1.1  christos 	      insn = bfd_get_32 (output_bfd, loc);
   10825      1.1  christos 	      if (insn == BCTR)
   10826  1.1.1.2  christos 		{
   10827  1.1.1.2  christos 		  /* By alignment, we know that there must be at least
   10828  1.1.1.2  christos 		     one other call stub before this one.  */
   10829  1.1.1.2  christos 		  insn = bfd_get_32 (output_bfd, loc - 16);
   10830  1.1.1.2  christos 		  if (insn == BCTR)
   10831      1.1  christos 		    bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
   10832      1.1  christos 		  else
   10833      1.1  christos 		    bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
   10834      1.1  christos 		}
   10835      1.1  christos 	    }
   10836      1.1  christos 	}
   10837      1.1  christos 
   10838      1.1  christos       /* Last comes the PLTresolve stub.  */
   10839      1.1  christos       if (bfd_link_pic (info))
   10840      1.1  christos 	{
   10841      1.1  christos 	  bfd_vma bcl;
   10842      1.1  christos 
   10843      1.1  christos 	  for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
   10844      1.1  christos 	    {
   10845      1.1  christos 	      unsigned int insn = pic_plt_resolve[i];
   10846      1.1  christos 
   10847      1.1  christos 	      if (htab->params->ppc476_workaround && insn == NOP)
   10848      1.1  christos 		insn = BA + 0;
   10849      1.1  christos 	      bfd_put_32 (output_bfd, insn, p);
   10850      1.1  christos 	      p += 4;
   10851      1.1  christos 	    }
   10852      1.1  christos 	  p -= 4 * ARRAY_SIZE (pic_plt_resolve);
   10853      1.1  christos 
   10854      1.1  christos 	  bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
   10855      1.1  christos 		 + htab->glink->output_section->vma
   10856      1.1  christos 		 + htab->glink->output_offset);
   10857      1.1  christos 
   10858      1.1  christos 	  bfd_put_32 (output_bfd,
   10859      1.1  christos 		      ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
   10860      1.1  christos 	  bfd_put_32 (output_bfd,
   10861      1.1  christos 		      ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
   10862      1.1  christos 	  bfd_put_32 (output_bfd,
   10863      1.1  christos 		      ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
   10864  1.1.1.2  christos 	  if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
   10865  1.1.1.2  christos 	    {
   10866  1.1.1.2  christos 	      bfd_put_32 (output_bfd,
   10867  1.1.1.2  christos 			  LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
   10868  1.1.1.2  christos 	      bfd_put_32 (output_bfd,
   10869      1.1  christos 			  LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
   10870      1.1  christos 	    }
   10871      1.1  christos 	  else
   10872      1.1  christos 	    {
   10873      1.1  christos 	      bfd_put_32 (output_bfd,
   10874      1.1  christos 			  LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
   10875      1.1  christos 	      bfd_put_32 (output_bfd,
   10876      1.1  christos 			  LWZ_12_12 + 4, p + 9*4);
   10877      1.1  christos 	    }
   10878      1.1  christos 	}
   10879      1.1  christos       else
   10880      1.1  christos 	{
   10881      1.1  christos 	  for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
   10882      1.1  christos 	    {
   10883      1.1  christos 	      unsigned int insn = plt_resolve[i];
   10884      1.1  christos 
   10885      1.1  christos 	      if (htab->params->ppc476_workaround && insn == NOP)
   10886      1.1  christos 		insn = BA + 0;
   10887      1.1  christos 	      bfd_put_32 (output_bfd, insn, p);
   10888      1.1  christos 	      p += 4;
   10889      1.1  christos 	    }
   10890      1.1  christos 	  p -= 4 * ARRAY_SIZE (plt_resolve);
   10891      1.1  christos 
   10892      1.1  christos 	  bfd_put_32 (output_bfd,
   10893      1.1  christos 		      LIS_12 + PPC_HA (got + 4), p + 0*4);
   10894      1.1  christos 	  bfd_put_32 (output_bfd,
   10895      1.1  christos 		      ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
   10896      1.1  christos 	  bfd_put_32 (output_bfd,
   10897      1.1  christos 		      ADDI_11_11 + PPC_LO (-res0), p + 3*4);
   10898      1.1  christos 	  if (PPC_HA (got + 4) == PPC_HA (got + 8))
   10899      1.1  christos 	    {
   10900      1.1  christos 	      bfd_put_32 (output_bfd,
   10901      1.1  christos 			  LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
   10902      1.1  christos 	      bfd_put_32 (output_bfd,
   10903      1.1  christos 			  LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
   10904      1.1  christos 	    }
   10905      1.1  christos 	  else
   10906      1.1  christos 	    {
   10907      1.1  christos 	      bfd_put_32 (output_bfd,
   10908      1.1  christos 			  LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
   10909      1.1  christos 	      bfd_put_32 (output_bfd,
   10910      1.1  christos 			  LWZ_12_12 + 4, p + 6*4);
   10911      1.1  christos 	    }
   10912      1.1  christos 	}
   10913      1.1  christos     }
   10914      1.1  christos 
   10915      1.1  christos   if (htab->glink_eh_frame != NULL
   10916      1.1  christos       && htab->glink_eh_frame->contents != NULL)
   10917      1.1  christos     {
   10918      1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   10919      1.1  christos       bfd_vma val;
   10920      1.1  christos 
   10921      1.1  christos       p += sizeof (glink_eh_frame_cie);
   10922      1.1  christos       /* FDE length.  */
   10923      1.1  christos       p += 4;
   10924      1.1  christos       /* CIE pointer.  */
   10925  1.1.1.2  christos       p += 4;
   10926      1.1  christos       /* Offset to .glink.  */
   10927  1.1.1.2  christos       val = (htab->glink->output_section->vma
   10928      1.1  christos 	     + htab->glink->output_offset);
   10929      1.1  christos       val -= (htab->glink_eh_frame->output_section->vma
   10930      1.1  christos 	      + htab->glink_eh_frame->output_offset);
   10931      1.1  christos       val -= p - htab->glink_eh_frame->contents;
   10932      1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   10933      1.1  christos 
   10934  1.1.1.2  christos       if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
   10935      1.1  christos 	  && !_bfd_elf_write_section_eh_frame (output_bfd, info,
   10936      1.1  christos 					       htab->glink_eh_frame,
   10937  1.1.1.2  christos 					       htab->glink_eh_frame->contents))
   10938      1.1  christos 	return FALSE;
   10939      1.1  christos     }
   10940      1.1  christos 
   10941      1.1  christos   return ret;
   10942      1.1  christos }
   10943      1.1  christos 
   10944      1.1  christos #define TARGET_LITTLE_SYM	powerpc_elf32_le_vec
   10946      1.1  christos #define TARGET_LITTLE_NAME	"elf32-powerpcle"
   10947      1.1  christos #define TARGET_BIG_SYM		powerpc_elf32_vec
   10948      1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc"
   10949      1.1  christos #define ELF_ARCH		bfd_arch_powerpc
   10950      1.1  christos #define ELF_TARGET_ID		PPC32_ELF_DATA
   10951  1.1.1.5  christos #define ELF_MACHINE_CODE	EM_PPC
   10952      1.1  christos #ifdef __QNXTARGET__
   10953      1.1  christos #define ELF_MAXPAGESIZE		0x1000
   10954      1.1  christos #define ELF_COMMONPAGESIZE	0x1000
   10955  1.1.1.2  christos #else
   10956      1.1  christos #define ELF_MAXPAGESIZE		0x10000
   10957      1.1  christos #define ELF_COMMONPAGESIZE	0x10000
   10958      1.1  christos #endif
   10959      1.1  christos #define ELF_MINPAGESIZE		0x1000
   10960      1.1  christos #define elf_info_to_howto	ppc_elf_info_to_howto
   10961      1.1  christos 
   10962      1.1  christos #ifdef  EM_CYGNUS_POWERPC
   10963      1.1  christos #define ELF_MACHINE_ALT1	EM_CYGNUS_POWERPC
   10964      1.1  christos #endif
   10965      1.1  christos 
   10966      1.1  christos #ifdef EM_PPC_OLD
   10967      1.1  christos #define ELF_MACHINE_ALT2	EM_PPC_OLD
   10968      1.1  christos #endif
   10969      1.1  christos 
   10970      1.1  christos #define elf_backend_plt_not_loaded	1
   10971      1.1  christos #define elf_backend_want_dynrelro	1
   10972      1.1  christos #define elf_backend_can_gc_sections	1
   10973      1.1  christos #define elf_backend_can_refcount	1
   10974      1.1  christos #define elf_backend_rela_normal		1
   10975      1.1  christos #define elf_backend_caches_rawsize	1
   10976      1.1  christos 
   10977      1.1  christos #define bfd_elf32_mkobject			ppc_elf_mkobject
   10978      1.1  christos #define bfd_elf32_bfd_merge_private_bfd_data	ppc_elf_merge_private_bfd_data
   10979      1.1  christos #define bfd_elf32_bfd_relax_section		ppc_elf_relax_section
   10980      1.1  christos #define bfd_elf32_bfd_reloc_type_lookup		ppc_elf_reloc_type_lookup
   10981      1.1  christos #define bfd_elf32_bfd_reloc_name_lookup		ppc_elf_reloc_name_lookup
   10982      1.1  christos #define bfd_elf32_bfd_set_private_flags		ppc_elf_set_private_flags
   10983      1.1  christos #define bfd_elf32_bfd_link_hash_table_create	ppc_elf_link_hash_table_create
   10984      1.1  christos #define bfd_elf32_get_synthetic_symtab		ppc_elf_get_synthetic_symtab
   10985      1.1  christos 
   10986      1.1  christos #define elf_backend_object_p			ppc_elf_object_p
   10987      1.1  christos #define elf_backend_gc_mark_hook		ppc_elf_gc_mark_hook
   10988      1.1  christos #define elf_backend_gc_sweep_hook		ppc_elf_gc_sweep_hook
   10989      1.1  christos #define elf_backend_section_from_shdr		ppc_elf_section_from_shdr
   10990      1.1  christos #define elf_backend_relocate_section		ppc_elf_relocate_section
   10991      1.1  christos #define elf_backend_create_dynamic_sections	ppc_elf_create_dynamic_sections
   10992      1.1  christos #define elf_backend_check_relocs		ppc_elf_check_relocs
   10993      1.1  christos #define elf_backend_copy_indirect_symbol	ppc_elf_copy_indirect_symbol
   10994      1.1  christos #define elf_backend_adjust_dynamic_symbol	ppc_elf_adjust_dynamic_symbol
   10995      1.1  christos #define elf_backend_add_symbol_hook		ppc_elf_add_symbol_hook
   10996      1.1  christos #define elf_backend_size_dynamic_sections	ppc_elf_size_dynamic_sections
   10997      1.1  christos #define elf_backend_hash_symbol			ppc_elf_hash_symbol
   10998      1.1  christos #define elf_backend_finish_dynamic_symbol	ppc_elf_finish_dynamic_symbol
   10999      1.1  christos #define elf_backend_finish_dynamic_sections	ppc_elf_finish_dynamic_sections
   11000      1.1  christos #define elf_backend_fake_sections		ppc_elf_fake_sections
   11001      1.1  christos #define elf_backend_additional_program_headers	ppc_elf_additional_program_headers
   11002      1.1  christos #define elf_backend_modify_segment_map     	ppc_elf_modify_segment_map
   11003      1.1  christos #define elf_backend_grok_prstatus		ppc_elf_grok_prstatus
   11004  1.1.1.2  christos #define elf_backend_grok_psinfo			ppc_elf_grok_psinfo
   11005      1.1  christos #define elf_backend_write_core_note		ppc_elf_write_core_note
   11006      1.1  christos #define elf_backend_reloc_type_class		ppc_elf_reloc_type_class
   11007      1.1  christos #define elf_backend_begin_write_processing	ppc_elf_begin_write_processing
   11008      1.1  christos #define elf_backend_final_write_processing	ppc_elf_final_write_processing
   11009      1.1  christos #define elf_backend_write_section		ppc_elf_write_section
   11010      1.1  christos #define elf_backend_get_sec_type_attr		ppc_elf_get_sec_type_attr
   11011      1.1  christos #define elf_backend_plt_sym_val			ppc_elf_plt_sym_val
   11012      1.1  christos #define elf_backend_action_discarded		ppc_elf_action_discarded
   11013      1.1  christos #define elf_backend_init_index_section		_bfd_elf_init_1_index_section
   11014      1.1  christos #define elf_backend_lookup_section_flags_hook	ppc_elf_lookup_section_flags
   11015      1.1  christos 
   11016      1.1  christos #include "elf32-target.h"
   11017      1.1  christos 
   11018      1.1  christos /* FreeBSD Target */
   11019      1.1  christos 
   11020      1.1  christos #undef  TARGET_LITTLE_SYM
   11021      1.1  christos #undef  TARGET_LITTLE_NAME
   11022  1.1.1.2  christos 
   11023      1.1  christos #undef  TARGET_BIG_SYM
   11024      1.1  christos #define TARGET_BIG_SYM  powerpc_elf32_fbsd_vec
   11025      1.1  christos #undef  TARGET_BIG_NAME
   11026      1.1  christos #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
   11027      1.1  christos 
   11028      1.1  christos #undef  ELF_OSABI
   11029      1.1  christos #define ELF_OSABI	ELFOSABI_FREEBSD
   11030  1.1.1.5  christos 
   11031      1.1  christos #undef  elf32_bed
   11032      1.1  christos #define elf32_bed	elf32_powerpc_fbsd_bed
   11033      1.1  christos 
   11034      1.1  christos #include "elf32-target.h"
   11035      1.1  christos 
   11036      1.1  christos /* VxWorks Target */
   11037      1.1  christos 
   11038      1.1  christos #undef TARGET_LITTLE_SYM
   11039      1.1  christos #undef TARGET_LITTLE_NAME
   11040      1.1  christos 
   11041      1.1  christos #undef TARGET_BIG_SYM
   11042      1.1  christos #define TARGET_BIG_SYM		powerpc_elf32_vxworks_vec
   11043      1.1  christos #undef TARGET_BIG_NAME
   11044      1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc-vxworks"
   11045      1.1  christos 
   11046      1.1  christos #undef  ELF_OSABI
   11047      1.1  christos 
   11048      1.1  christos /* VxWorks uses the elf default section flags for .plt.  */
   11049      1.1  christos static const struct bfd_elf_special_section *
   11050      1.1  christos ppc_elf_vxworks_get_sec_type_attr (bfd *abfd, asection *sec)
   11051      1.1  christos {
   11052      1.1  christos   if (sec->name == NULL)
   11053      1.1  christos     return NULL;
   11054      1.1  christos 
   11055      1.1  christos   if (strcmp (sec->name, ".plt") == 0)
   11056      1.1  christos     return _bfd_elf_get_sec_type_attr (abfd, sec);
   11057      1.1  christos 
   11058      1.1  christos   return ppc_elf_get_sec_type_attr (abfd, sec);
   11059      1.1  christos }
   11060      1.1  christos 
   11061      1.1  christos /* Like ppc_elf_link_hash_table_create, but overrides
   11062      1.1  christos    appropriately for VxWorks.  */
   11063      1.1  christos static struct bfd_link_hash_table *
   11064      1.1  christos ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
   11065      1.1  christos {
   11066      1.1  christos   struct bfd_link_hash_table *ret;
   11067  1.1.1.5  christos 
   11068  1.1.1.5  christos   ret = ppc_elf_link_hash_table_create (abfd);
   11069      1.1  christos   if (ret)
   11070      1.1  christos     {
   11071      1.1  christos       struct ppc_elf_link_hash_table *htab
   11072  1.1.1.5  christos         = (struct ppc_elf_link_hash_table *)ret;
   11073  1.1.1.5  christos       htab->is_vxworks = 1;
   11074      1.1  christos       htab->plt_type = PLT_VXWORKS;
   11075      1.1  christos       htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
   11076  1.1.1.5  christos       htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
   11077      1.1  christos       htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
   11078      1.1  christos     }
   11079      1.1  christos   return ret;
   11080      1.1  christos }
   11081      1.1  christos 
   11082  1.1.1.5  christos /* Tweak magic VxWorks symbols as they are loaded.  */
   11083  1.1.1.5  christos static bfd_boolean
   11084      1.1  christos ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
   11085      1.1  christos 				 struct bfd_link_info *info,
   11086      1.1  christos 				 Elf_Internal_Sym *sym,
   11087      1.1  christos 				 const char **namep,
   11088      1.1  christos 				 flagword *flagsp,
   11089      1.1  christos 				 asection **secp,
   11090      1.1  christos 				 bfd_vma *valp)
   11091      1.1  christos {
   11092      1.1  christos   if (!elf_vxworks_add_symbol_hook (abfd, info, sym, namep, flagsp, secp,
   11093      1.1  christos 				    valp))
   11094      1.1  christos     return FALSE;
   11095      1.1  christos 
   11096      1.1  christos   return ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp);
   11097      1.1  christos }
   11098      1.1  christos 
   11099      1.1  christos static void
   11100  1.1.1.5  christos ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
   11101  1.1.1.5  christos {
   11102      1.1  christos   ppc_elf_final_write_processing (abfd, linker);
   11103      1.1  christos   elf_vxworks_final_write_processing (abfd, linker);
   11104      1.1  christos }
   11105      1.1  christos 
   11106      1.1  christos /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
   11107      1.1  christos    define it.  */
   11108      1.1  christos #undef elf_backend_want_plt_sym
   11109      1.1  christos #define elf_backend_want_plt_sym		1
   11110      1.1  christos #undef elf_backend_want_got_plt
   11111      1.1  christos #define elf_backend_want_got_plt		1
   11112      1.1  christos #undef elf_backend_got_symbol_offset
   11113      1.1  christos #define elf_backend_got_symbol_offset		0
   11114      1.1  christos #undef elf_backend_plt_not_loaded
   11115      1.1  christos #define elf_backend_plt_not_loaded		0
   11116      1.1  christos #undef elf_backend_plt_readonly
   11117      1.1  christos #define elf_backend_plt_readonly		1
   11118      1.1  christos #undef elf_backend_got_header_size
   11119      1.1  christos #define elf_backend_got_header_size		12
   11120      1.1  christos #undef elf_backend_dtrel_excludes_plt
   11121      1.1  christos #define elf_backend_dtrel_excludes_plt		1
   11122      1.1  christos 
   11123      1.1  christos #undef bfd_elf32_get_synthetic_symtab
   11124      1.1  christos 
   11125      1.1  christos #undef bfd_elf32_bfd_link_hash_table_create
   11126      1.1  christos #define bfd_elf32_bfd_link_hash_table_create \
   11127      1.1  christos   ppc_elf_vxworks_link_hash_table_create
   11128      1.1  christos #undef elf_backend_add_symbol_hook
   11129                    #define elf_backend_add_symbol_hook \
   11130                      ppc_elf_vxworks_add_symbol_hook
   11131                    #undef elf_backend_link_output_symbol_hook
   11132                    #define elf_backend_link_output_symbol_hook \
   11133                      elf_vxworks_link_output_symbol_hook
   11134                    #undef elf_backend_final_write_processing
   11135                    #define elf_backend_final_write_processing \
   11136                      ppc_elf_vxworks_final_write_processing
   11137                    #undef elf_backend_get_sec_type_attr
   11138                    #define elf_backend_get_sec_type_attr \
   11139                      ppc_elf_vxworks_get_sec_type_attr
   11140                    #undef elf_backend_emit_relocs
   11141                    #define elf_backend_emit_relocs \
   11142                      elf_vxworks_emit_relocs
   11143                    
   11144                    #undef elf32_bed
   11145                    #define elf32_bed				ppc_elf_vxworks_bed
   11146                    #undef elf_backend_post_process_headers
   11147                    
   11148                    #include "elf32-target.h"
   11149