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elf32-ppc.c revision 1.3.2.1
      1      1.1  christos /* PowerPC-specific support for 32-bit ELF
      2      1.3  christos    Copyright (C) 1994-2015 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  christos #include "elf-linux-psinfo.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      1.3  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  1.3.2.1  pgoyette 	 0,			/* rightshift */
    191  1.3.2.1  pgoyette 	 3,			/* size (0 = byte, 1 = short, 2 = long) */
    192      1.1  christos 	 0,			/* bitsize */
    193      1.1  christos 	 FALSE,			/* pc_relative */
    194      1.3  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      1.3  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      1.3  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      1.3  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      1.3  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      1.3  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  christos 	 complain_overflow_signed, /* complain_on_overflow */
    418      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_dont, /* complain_on_overflow */
    434      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    449      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    450      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    465      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    466      1.1  christos 	 ppc_elf_addr16_ha_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  christos 	 0,			/* bitpos */
    481      1.1  christos 	 complain_overflow_signed,  /* complain_on_overflow */
    482      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    500      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    501      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    516      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    517      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    531      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    532      1.1  christos 	 bfd_elf_generic_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      1.3  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      1.3  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      1.3  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      1.3  christos 	 0,			/* bitpos */
    626      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    627      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    642      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    643      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_dont, /* complain_on_overflow */
    659      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    674      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    675      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    690      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    691      1.1  christos 	 ppc_elf_addr16_ha_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  christos 	 complain_overflow_signed, /* complain_on_overflow */
    707      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    721      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    722      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_dont, /* complain_on_overflow */
    737      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    751      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    752      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
    766      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    767      1.1  christos 	 ppc_elf_addr16_ha_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      1.3  christos 	 0,			/* bitpos */
   1242      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1243      1.1  christos 	 bfd_elf_generic_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      1.3  christos 	 0,			/* bitpos */
   1257      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1258      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1273      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1288      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1305      1.1  christos 	 ppc_elf_addr16_ha_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  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1322      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1339      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1355      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1372      1.1  christos 	 bfd_elf_generic_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  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1396      1.1  christos 	 bfd_elf_generic_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  christos 	 0,			/* src_mask */
   1430      1.1  christos 	 0xfe,			/* 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      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1452      1.1  christos 	 16,			/* bitsize */
   1453      1.1  christos 	 FALSE,			/* pc_relative */
   1454      1.3  christos 	 0,			/* bitpos */
   1455      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1456      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1457      1.1  christos 	 "R_PPC_VLE_LO16A",	/* name */
   1458      1.1  christos 	 FALSE,			/* partial_inplace */
   1459      1.1  christos 	 0,			/* src_mask */
   1460      1.1  christos 	 0x1f007ff,		/* 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      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1467      1.1  christos 	 16,			/* bitsize */
   1468      1.1  christos 	 FALSE,			/* pc_relative */
   1469      1.3  christos 	 0,			/* bitpos */
   1470      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1471      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1472      1.1  christos 	 "R_PPC_VLE_LO16D",		/* name */
   1473      1.1  christos 	 FALSE,			/* partial_inplace */
   1474      1.1  christos 	 0,			/* src_mask */
   1475      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1476      1.1  christos 	 FALSE),		/* pcrel_offset */
   1477      1.1  christos 
   1478      1.1  christos   /* Bits 16-31 split16a format.  */
   1479      1.3  christos   HOWTO (R_PPC_VLE_HI16A,	/* type */
   1480      1.1  christos 	 16,			/* rightshift */
   1481      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1482      1.1  christos 	 16,			/* bitsize */
   1483      1.1  christos 	 FALSE,			/* pc_relative */
   1484      1.3  christos 	 0,			/* bitpos */
   1485      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1486      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1487      1.1  christos 	 "R_PPC_VLE_HI16A",		/* name */
   1488      1.1  christos 	 FALSE,			/* partial_inplace */
   1489      1.1  christos 	 0,			/* src_mask */
   1490      1.1  christos 	 0x1f007ff,		/* dst_mask */
   1491      1.1  christos 	 FALSE),		/* pcrel_offset */
   1492      1.1  christos 
   1493      1.1  christos   /* Bits 16-31 split16d format.  */
   1494      1.3  christos   HOWTO (R_PPC_VLE_HI16D,	/* type */
   1495      1.1  christos 	 16,			/* rightshift */
   1496      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1497      1.1  christos 	 16,			/* bitsize */
   1498      1.1  christos 	 FALSE,			/* pc_relative */
   1499      1.3  christos 	 0,			/* bitpos */
   1500      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1501      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1502      1.1  christos 	 "R_PPC_VLE_HI16D",		/* name */
   1503      1.1  christos 	 FALSE,			/* partial_inplace */
   1504      1.1  christos 	 0,			/* src_mask */
   1505      1.1  christos 	 0x1f07ff,		/* 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      1.3  christos   HOWTO (R_PPC_VLE_HA16A,	/* type */
   1510      1.1  christos 	 16,			/* rightshift */
   1511      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1512      1.1  christos 	 16,			/* bitsize */
   1513      1.1  christos 	 FALSE,			/* pc_relative */
   1514      1.3  christos 	 0,			/* bitpos */
   1515      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1516      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1517      1.1  christos 	 "R_PPC_VLE_HA16A",		/* name */
   1518      1.1  christos 	 FALSE,			/* partial_inplace */
   1519      1.1  christos 	 0,			/* src_mask */
   1520      1.1  christos 	 0x1f007ff,		/* 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      1.3  christos   HOWTO (R_PPC_VLE_HA16D,	/* type */
   1525      1.1  christos 	 16,			/* rightshift */
   1526      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1527      1.1  christos 	 16,			/* bitsize */
   1528      1.1  christos 	 FALSE,			/* pc_relative */
   1529      1.3  christos 	 0,			/* bitpos */
   1530      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1531      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1532      1.1  christos 	 "R_PPC_VLE_HA16D",		/* name */
   1533      1.1  christos 	 FALSE,			/* partial_inplace */
   1534      1.1  christos 	 0,			/* src_mask */
   1535      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1536      1.1  christos 	 FALSE),		/* pcrel_offset */
   1537      1.3  christos 
   1538      1.3  christos   /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
   1539      1.3  christos      instructions.  If the register base is 0 then the linker changes
   1540      1.3  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      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1544      1.1  christos 	 16,			/* bitsize */
   1545      1.1  christos 	 FALSE,			/* pc_relative */
   1546      1.3  christos 	 0,			/* bitpos */
   1547      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1548      1.1  christos 	 bfd_elf_generic_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      1.3  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      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1559      1.1  christos 	 16,			/* bitsize */
   1560      1.1  christos 	 FALSE,			/* pc_relative */
   1561      1.3  christos 	 0,			/* bitpos */
   1562      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1563      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1564      1.1  christos 	 "R_PPC_VLE_SDA21_LO",	/* name */
   1565      1.1  christos 	 FALSE,			/* partial_inplace */
   1566      1.3  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      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1574      1.1  christos 	 16,			/* bitsize */
   1575      1.1  christos 	 FALSE,			/* pc_relative */
   1576      1.3  christos 	 0,			/* bitpos */
   1577      1.1  christos 	 complain_overflow_dont,	/* complain_on_overflow */
   1578      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1579      1.1  christos 	 "R_PPC_VLE_SDAREL_LO16A",	/* name */
   1580      1.1  christos 	 FALSE,			/* partial_inplace */
   1581      1.1  christos 	 0,			/* src_mask */
   1582      1.1  christos 	 0x1f007ff,		/* 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      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1589      1.1  christos 	 16,			/* bitsize */
   1590      1.1  christos 	 FALSE,			/* pc_relative */
   1591      1.3  christos 	 0,			/* bitpos */
   1592      1.1  christos 	 complain_overflow_dont,	/* complain_on_overflow */
   1593      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1594      1.1  christos 	 "R_PPC_VLE_SDAREL_LO16D",		/* name */
   1595      1.1  christos 	 FALSE,			/* partial_inplace */
   1596      1.1  christos 	 0,			/* src_mask */
   1597      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1598      1.1  christos 	 FALSE),		/* pcrel_offset */
   1599      1.1  christos 
   1600      1.1  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16a format.  */
   1601      1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HI16A,	/* type */
   1602      1.1  christos 	 16,			/* rightshift */
   1603      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1604      1.1  christos 	 16,			/* bitsize */
   1605      1.1  christos 	 FALSE,			/* pc_relative */
   1606      1.3  christos 	 0,			/* bitpos */
   1607      1.1  christos 	 complain_overflow_dont,	/* complain_on_overflow */
   1608      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1609      1.1  christos 	 "R_PPC_VLE_SDAREL_HI16A",	/* name */
   1610      1.1  christos 	 FALSE,			/* partial_inplace */
   1611      1.1  christos 	 0,			/* src_mask */
   1612      1.1  christos 	 0x1f007ff,		/* dst_mask */
   1613      1.1  christos 	 FALSE),		/* pcrel_offset */
   1614      1.1  christos 
   1615      1.1  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16d format.  */
   1616      1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HI16D,	/* type */
   1617      1.1  christos 	 16,			/* rightshift */
   1618      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1619      1.1  christos 	 16,			/* bitsize */
   1620      1.1  christos 	 FALSE,			/* pc_relative */
   1621      1.3  christos 	 0,			/* bitpos */
   1622      1.1  christos 	 complain_overflow_dont,	/* complain_on_overflow */
   1623      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1624      1.1  christos 	 "R_PPC_VLE_SDAREL_HI16D",	/* name */
   1625      1.1  christos 	 FALSE,			/* partial_inplace */
   1626      1.1  christos 	 0,			/* src_mask */
   1627      1.1  christos 	 0x1f07ff,		/* dst_mask */
   1628      1.1  christos 	 FALSE),		/* pcrel_offset */
   1629      1.1  christos 
   1630      1.1  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16a format.  */
   1631      1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HA16A,	/* type */
   1632      1.1  christos 	 16,			/* rightshift */
   1633      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1634      1.1  christos 	 16,			/* bitsize */
   1635      1.1  christos 	 FALSE,			/* pc_relative */
   1636      1.3  christos 	 0,			/* bitpos */
   1637      1.1  christos 	 complain_overflow_dont,	/* complain_on_overflow */
   1638      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1639      1.1  christos 	 "R_PPC_VLE_SDAREL_HA16A",	/* name */
   1640      1.1  christos 	 FALSE,			/* partial_inplace */
   1641      1.1  christos 	 0,			/* src_mask */
   1642      1.1  christos 	 0x1f007ff,		/* dst_mask */
   1643      1.1  christos 	 FALSE),		/* pcrel_offset */
   1644      1.1  christos 
   1645      1.1  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16d format.  */
   1646      1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HA16D,	/* type */
   1647      1.1  christos 	 16,			/* rightshift */
   1648      1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1649      1.1  christos 	 16,			/* bitsize */
   1650      1.1  christos 	 FALSE,			/* pc_relative */
   1651      1.3  christos 	 0,			/* bitpos */
   1652      1.1  christos 	 complain_overflow_dont,	/* complain_on_overflow */
   1653      1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1654      1.1  christos 	 "R_PPC_VLE_SDAREL_HA16D",	/* name */
   1655      1.1  christos 	 FALSE,			/* partial_inplace */
   1656      1.1  christos 	 0,			/* src_mask */
   1657      1.1  christos 	 0x1f07ff,		/* 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      1.3  christos 	 0,			/* bitpos */
   1666      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1667      1.1  christos 	 bfd_elf_generic_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      1.3  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  christos 
   1735      1.1  christos   /* GNU extension to record C++ vtable hierarchy.  */
   1736      1.1  christos   HOWTO (R_PPC_GNU_VTINHERIT,	/* type */
   1737      1.1  christos 	 0,			/* rightshift */
   1738      1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1739      1.1  christos 	 0,			/* bitsize */
   1740      1.1  christos 	 FALSE,			/* pc_relative */
   1741      1.1  christos 	 0,			/* bitpos */
   1742      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1743      1.1  christos 	 NULL,			/* special_function */
   1744      1.1  christos 	 "R_PPC_GNU_VTINHERIT",	/* name */
   1745      1.1  christos 	 FALSE,			/* partial_inplace */
   1746      1.1  christos 	 0,			/* src_mask */
   1747      1.1  christos 	 0,			/* dst_mask */
   1748      1.1  christos 	 FALSE),		/* pcrel_offset */
   1749      1.1  christos 
   1750      1.1  christos   /* GNU extension to record C++ vtable member usage.  */
   1751      1.1  christos   HOWTO (R_PPC_GNU_VTENTRY,	/* type */
   1752      1.1  christos 	 0,			/* rightshift */
   1753      1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1754      1.1  christos 	 0,			/* bitsize */
   1755      1.1  christos 	 FALSE,			/* pc_relative */
   1756      1.1  christos 	 0,			/* bitpos */
   1757      1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1758      1.1  christos 	 NULL,			/* special_function */
   1759      1.1  christos 	 "R_PPC_GNU_VTENTRY",	/* name */
   1760      1.1  christos 	 FALSE,			/* partial_inplace */
   1761      1.1  christos 	 0,			/* src_mask */
   1762      1.1  christos 	 0,			/* dst_mask */
   1763      1.1  christos 	 FALSE),		/* pcrel_offset */
   1764      1.1  christos 
   1765      1.1  christos   /* Phony reloc to handle AIX style TOC entries.  */
   1766      1.1  christos   HOWTO (R_PPC_TOC16,		/* type */
   1767      1.1  christos 	 0,			/* rightshift */
   1768      1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1769      1.1  christos 	 16,			/* bitsize */
   1770      1.1  christos 	 FALSE,			/* pc_relative */
   1771      1.1  christos 	 0,			/* bitpos */
   1772      1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1773      1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1774      1.1  christos 	 "R_PPC_TOC16",		/* name */
   1775      1.1  christos 	 FALSE,			/* partial_inplace */
   1776      1.1  christos 	 0,			/* src_mask */
   1777      1.1  christos 	 0xffff,		/* dst_mask */
   1778      1.1  christos 	 FALSE),		/* pcrel_offset */
   1779      1.1  christos };
   1780      1.1  christos 
   1781      1.1  christos /* External 32-bit PPC structure for PRPSINFO.  This structure is
   1782      1.1  christos    ABI-defined, thus we choose to use char arrays here in order to
   1783      1.1  christos    avoid dealing with different types in different architectures.
   1784      1.1  christos 
   1785      1.1  christos    The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
   1786      1.1  christos    most non-PPC architectures use `short int'.
   1787      1.1  christos 
   1788      1.1  christos    This structure will ultimately be written in the corefile's note
   1789      1.1  christos    section, as the PRPSINFO.  */
   1790      1.1  christos 
   1791      1.1  christos struct elf_external_ppc_linux_prpsinfo32
   1792      1.1  christos   {
   1793      1.1  christos     char pr_state;			/* Numeric process state.  */
   1794      1.1  christos     char pr_sname;			/* Char for pr_state.  */
   1795      1.1  christos     char pr_zomb;			/* Zombie.  */
   1796      1.1  christos     char pr_nice;			/* Nice val.  */
   1797      1.1  christos     char pr_flag[4];			/* Flags.  */
   1798      1.1  christos     char pr_uid[4];
   1799      1.1  christos     char pr_gid[4];
   1800      1.1  christos     char pr_pid[4];
   1801      1.1  christos     char pr_ppid[4];
   1802      1.1  christos     char pr_pgrp[4];
   1803      1.1  christos     char pr_sid[4];
   1804      1.1  christos     char pr_fname[16];			/* Filename of executable.  */
   1805      1.1  christos     char pr_psargs[80];			/* Initial part of arg list.  */
   1806      1.1  christos   };
   1807      1.1  christos 
   1808      1.1  christos /* Helper macro to swap (properly handling endianess) things from the
   1809      1.1  christos    `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32'
   1810      1.1  christos    structure.
   1811      1.1  christos 
   1812      1.1  christos    Note that FROM should be a pointer, and TO should be the explicit type.  */
   1813      1.1  christos 
   1814      1.1  christos #define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to)	      \
   1815      1.1  christos   do								      \
   1816      1.1  christos     {								      \
   1817      1.1  christos       H_PUT_8 (abfd, from->pr_state, &to.pr_state);		      \
   1818      1.1  christos       H_PUT_8 (abfd, from->pr_sname, &to.pr_sname);		      \
   1819      1.1  christos       H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb);		      \
   1820      1.1  christos       H_PUT_8 (abfd, from->pr_nice, &to.pr_nice);		      \
   1821      1.1  christos       H_PUT_32 (abfd, from->pr_flag, to.pr_flag);		      \
   1822      1.1  christos       H_PUT_32 (abfd, from->pr_uid, to.pr_uid);			      \
   1823      1.1  christos       H_PUT_32 (abfd, from->pr_gid, to.pr_gid);			      \
   1824      1.1  christos       H_PUT_32 (abfd, from->pr_pid, to.pr_pid);			      \
   1825      1.1  christos       H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid);		      \
   1826      1.1  christos       H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp);		      \
   1827      1.1  christos       H_PUT_32 (abfd, from->pr_sid, to.pr_sid);			      \
   1828      1.1  christos       strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname));    \
   1829      1.1  christos       strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \
   1830      1.1  christos     } while (0)
   1831      1.1  christos 
   1832      1.1  christos 
   1833      1.1  christos /* Initialize the ppc_elf_howto_table, so that linear accesses can be done.  */
   1835      1.1  christos 
   1836      1.1  christos static void
   1837      1.1  christos ppc_elf_howto_init (void)
   1838      1.1  christos {
   1839      1.1  christos   unsigned int i, type;
   1840      1.1  christos 
   1841      1.1  christos   for (i = 0;
   1842      1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   1843      1.1  christos        i++)
   1844      1.1  christos     {
   1845      1.1  christos       type = ppc_elf_howto_raw[i].type;
   1846      1.1  christos       if (type >= (sizeof (ppc_elf_howto_table)
   1847      1.1  christos 		   / sizeof (ppc_elf_howto_table[0])))
   1848      1.1  christos 	abort ();
   1849      1.1  christos       ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
   1850      1.1  christos     }
   1851      1.1  christos }
   1852      1.1  christos 
   1853      1.1  christos static reloc_howto_type *
   1854      1.1  christos ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   1855      1.1  christos 			   bfd_reloc_code_real_type code)
   1856      1.1  christos {
   1857      1.1  christos   enum elf_ppc_reloc_type r;
   1858      1.1  christos 
   1859      1.1  christos   /* Initialize howto table if not already done.  */
   1860      1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   1861      1.1  christos     ppc_elf_howto_init ();
   1862      1.1  christos 
   1863      1.1  christos   switch (code)
   1864      1.1  christos     {
   1865      1.1  christos     default:
   1866      1.1  christos       return NULL;
   1867      1.1  christos 
   1868      1.1  christos     case BFD_RELOC_NONE:		r = R_PPC_NONE;			break;
   1869      1.1  christos     case BFD_RELOC_32:			r = R_PPC_ADDR32;		break;
   1870      1.1  christos     case BFD_RELOC_PPC_BA26:		r = R_PPC_ADDR24;		break;
   1871      1.1  christos     case BFD_RELOC_PPC64_ADDR16_DS:
   1872      1.1  christos     case BFD_RELOC_16:			r = R_PPC_ADDR16;		break;
   1873      1.1  christos     case BFD_RELOC_PPC64_ADDR16_LO_DS:
   1874      1.1  christos     case BFD_RELOC_LO16:		r = R_PPC_ADDR16_LO;		break;
   1875      1.1  christos     case BFD_RELOC_HI16:		r = R_PPC_ADDR16_HI;		break;
   1876      1.1  christos     case BFD_RELOC_HI16_S:		r = R_PPC_ADDR16_HA;		break;
   1877      1.1  christos     case BFD_RELOC_PPC_BA16:		r = R_PPC_ADDR14;		break;
   1878      1.1  christos     case BFD_RELOC_PPC_BA16_BRTAKEN:	r = R_PPC_ADDR14_BRTAKEN;	break;
   1879      1.1  christos     case BFD_RELOC_PPC_BA16_BRNTAKEN:	r = R_PPC_ADDR14_BRNTAKEN;	break;
   1880      1.1  christos     case BFD_RELOC_PPC_B26:		r = R_PPC_REL24;		break;
   1881      1.1  christos     case BFD_RELOC_PPC_B16:		r = R_PPC_REL14;		break;
   1882      1.1  christos     case BFD_RELOC_PPC_B16_BRTAKEN:	r = R_PPC_REL14_BRTAKEN;	break;
   1883      1.1  christos     case BFD_RELOC_PPC_B16_BRNTAKEN:	r = R_PPC_REL14_BRNTAKEN;	break;
   1884      1.1  christos     case BFD_RELOC_PPC64_GOT16_DS:
   1885      1.1  christos     case BFD_RELOC_16_GOTOFF:		r = R_PPC_GOT16;		break;
   1886      1.1  christos     case BFD_RELOC_PPC64_GOT16_LO_DS:
   1887      1.1  christos     case BFD_RELOC_LO16_GOTOFF:		r = R_PPC_GOT16_LO;		break;
   1888      1.1  christos     case BFD_RELOC_HI16_GOTOFF:		r = R_PPC_GOT16_HI;		break;
   1889      1.1  christos     case BFD_RELOC_HI16_S_GOTOFF:	r = R_PPC_GOT16_HA;		break;
   1890      1.1  christos     case BFD_RELOC_24_PLT_PCREL:	r = R_PPC_PLTREL24;		break;
   1891      1.1  christos     case BFD_RELOC_PPC_COPY:		r = R_PPC_COPY;			break;
   1892      1.1  christos     case BFD_RELOC_PPC_GLOB_DAT:	r = R_PPC_GLOB_DAT;		break;
   1893      1.1  christos     case BFD_RELOC_PPC_LOCAL24PC:	r = R_PPC_LOCAL24PC;		break;
   1894      1.1  christos     case BFD_RELOC_32_PCREL:		r = R_PPC_REL32;		break;
   1895      1.1  christos     case BFD_RELOC_32_PLTOFF:		r = R_PPC_PLT32;		break;
   1896      1.1  christos     case BFD_RELOC_32_PLT_PCREL:	r = R_PPC_PLTREL32;		break;
   1897      1.1  christos     case BFD_RELOC_PPC64_PLT16_LO_DS:
   1898      1.1  christos     case BFD_RELOC_LO16_PLTOFF:		r = R_PPC_PLT16_LO;		break;
   1899      1.1  christos     case BFD_RELOC_HI16_PLTOFF:		r = R_PPC_PLT16_HI;		break;
   1900      1.1  christos     case BFD_RELOC_HI16_S_PLTOFF:	r = R_PPC_PLT16_HA;		break;
   1901      1.1  christos     case BFD_RELOC_GPREL16:		r = R_PPC_SDAREL16;		break;
   1902      1.1  christos     case BFD_RELOC_PPC64_SECTOFF_DS:
   1903      1.1  christos     case BFD_RELOC_16_BASEREL:		r = R_PPC_SECTOFF;		break;
   1904      1.1  christos     case BFD_RELOC_PPC64_SECTOFF_LO_DS:
   1905      1.1  christos     case BFD_RELOC_LO16_BASEREL:	r = R_PPC_SECTOFF_LO;		break;
   1906      1.1  christos     case BFD_RELOC_HI16_BASEREL:	r = R_PPC_SECTOFF_HI;		break;
   1907      1.1  christos     case BFD_RELOC_HI16_S_BASEREL:	r = R_PPC_SECTOFF_HA;		break;
   1908      1.1  christos     case BFD_RELOC_CTOR:		r = R_PPC_ADDR32;		break;
   1909      1.1  christos     case BFD_RELOC_PPC64_TOC16_DS:
   1910      1.1  christos     case BFD_RELOC_PPC_TOC16:		r = R_PPC_TOC16;		break;
   1911      1.1  christos     case BFD_RELOC_PPC_TLS:		r = R_PPC_TLS;			break;
   1912      1.1  christos     case BFD_RELOC_PPC_TLSGD:		r = R_PPC_TLSGD;		break;
   1913      1.1  christos     case BFD_RELOC_PPC_TLSLD:		r = R_PPC_TLSLD;		break;
   1914      1.1  christos     case BFD_RELOC_PPC_DTPMOD:		r = R_PPC_DTPMOD32;		break;
   1915      1.1  christos     case BFD_RELOC_PPC64_TPREL16_DS:
   1916      1.1  christos     case BFD_RELOC_PPC_TPREL16:		r = R_PPC_TPREL16;		break;
   1917      1.1  christos     case BFD_RELOC_PPC64_TPREL16_LO_DS:
   1918      1.1  christos     case BFD_RELOC_PPC_TPREL16_LO:	r = R_PPC_TPREL16_LO;		break;
   1919      1.1  christos     case BFD_RELOC_PPC_TPREL16_HI:	r = R_PPC_TPREL16_HI;		break;
   1920      1.1  christos     case BFD_RELOC_PPC_TPREL16_HA:	r = R_PPC_TPREL16_HA;		break;
   1921      1.1  christos     case BFD_RELOC_PPC_TPREL:		r = R_PPC_TPREL32;		break;
   1922      1.1  christos     case BFD_RELOC_PPC64_DTPREL16_DS:
   1923      1.1  christos     case BFD_RELOC_PPC_DTPREL16:	r = R_PPC_DTPREL16;		break;
   1924      1.1  christos     case BFD_RELOC_PPC64_DTPREL16_LO_DS:
   1925      1.1  christos     case BFD_RELOC_PPC_DTPREL16_LO:	r = R_PPC_DTPREL16_LO;		break;
   1926      1.1  christos     case BFD_RELOC_PPC_DTPREL16_HI:	r = R_PPC_DTPREL16_HI;		break;
   1927      1.1  christos     case BFD_RELOC_PPC_DTPREL16_HA:	r = R_PPC_DTPREL16_HA;		break;
   1928      1.1  christos     case BFD_RELOC_PPC_DTPREL:		r = R_PPC_DTPREL32;		break;
   1929      1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16:	r = R_PPC_GOT_TLSGD16;		break;
   1930      1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_LO:	r = R_PPC_GOT_TLSGD16_LO;	break;
   1931      1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HI:	r = R_PPC_GOT_TLSGD16_HI;	break;
   1932      1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HA:	r = R_PPC_GOT_TLSGD16_HA;	break;
   1933      1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16:	r = R_PPC_GOT_TLSLD16;		break;
   1934      1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_LO:	r = R_PPC_GOT_TLSLD16_LO;	break;
   1935      1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HI:	r = R_PPC_GOT_TLSLD16_HI;	break;
   1936      1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HA:	r = R_PPC_GOT_TLSLD16_HA;	break;
   1937      1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16:	r = R_PPC_GOT_TPREL16;		break;
   1938      1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_LO:	r = R_PPC_GOT_TPREL16_LO;	break;
   1939      1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HI:	r = R_PPC_GOT_TPREL16_HI;	break;
   1940      1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HA:	r = R_PPC_GOT_TPREL16_HA;	break;
   1941      1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16:	r = R_PPC_GOT_DTPREL16;		break;
   1942      1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_LO:	r = R_PPC_GOT_DTPREL16_LO;	break;
   1943      1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HI:	r = R_PPC_GOT_DTPREL16_HI;	break;
   1944      1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HA:	r = R_PPC_GOT_DTPREL16_HA;	break;
   1945      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR32:	r = R_PPC_EMB_NADDR32;		break;
   1946      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16:	r = R_PPC_EMB_NADDR16;		break;
   1947      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_LO:	r = R_PPC_EMB_NADDR16_LO;	break;
   1948      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HI:	r = R_PPC_EMB_NADDR16_HI;	break;
   1949      1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HA:	r = R_PPC_EMB_NADDR16_HA;	break;
   1950      1.1  christos     case BFD_RELOC_PPC_EMB_SDAI16:	r = R_PPC_EMB_SDAI16;		break;
   1951      1.1  christos     case BFD_RELOC_PPC_EMB_SDA2I16:	r = R_PPC_EMB_SDA2I16;		break;
   1952      1.1  christos     case BFD_RELOC_PPC_EMB_SDA2REL:	r = R_PPC_EMB_SDA2REL;		break;
   1953      1.1  christos     case BFD_RELOC_PPC_EMB_SDA21:	r = R_PPC_EMB_SDA21;		break;
   1954      1.1  christos     case BFD_RELOC_PPC_EMB_MRKREF:	r = R_PPC_EMB_MRKREF;		break;
   1955      1.1  christos     case BFD_RELOC_PPC_EMB_RELSEC16:	r = R_PPC_EMB_RELSEC16;		break;
   1956      1.1  christos     case BFD_RELOC_PPC_EMB_RELST_LO:	r = R_PPC_EMB_RELST_LO;		break;
   1957      1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HI:	r = R_PPC_EMB_RELST_HI;		break;
   1958      1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HA:	r = R_PPC_EMB_RELST_HA;		break;
   1959      1.1  christos     case BFD_RELOC_PPC_EMB_BIT_FLD:	r = R_PPC_EMB_BIT_FLD;		break;
   1960      1.1  christos     case BFD_RELOC_PPC_EMB_RELSDA:	r = R_PPC_EMB_RELSDA;		break;
   1961      1.1  christos     case BFD_RELOC_PPC_VLE_REL8:	r = R_PPC_VLE_REL8;		break;
   1962      1.1  christos     case BFD_RELOC_PPC_VLE_REL15:	r = R_PPC_VLE_REL15;		break;
   1963      1.1  christos     case BFD_RELOC_PPC_VLE_REL24:	r = R_PPC_VLE_REL24;		break;
   1964      1.1  christos     case BFD_RELOC_PPC_VLE_LO16A:	r = R_PPC_VLE_LO16A;		break;
   1965      1.1  christos     case BFD_RELOC_PPC_VLE_LO16D:	r = R_PPC_VLE_LO16D;		break;
   1966      1.1  christos     case BFD_RELOC_PPC_VLE_HI16A:	r = R_PPC_VLE_HI16A;		break;
   1967      1.1  christos     case BFD_RELOC_PPC_VLE_HI16D:	r = R_PPC_VLE_HI16D;		break;
   1968      1.1  christos     case BFD_RELOC_PPC_VLE_HA16A:	r = R_PPC_VLE_HA16A;		break;
   1969      1.1  christos     case BFD_RELOC_PPC_VLE_HA16D:	r = R_PPC_VLE_HA16D;		break;
   1970      1.1  christos     case BFD_RELOC_PPC_VLE_SDA21:	r = R_PPC_VLE_SDA21;		break;
   1971      1.1  christos     case BFD_RELOC_PPC_VLE_SDA21_LO:	r = R_PPC_VLE_SDA21_LO;		break;
   1972      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
   1973      1.1  christos       r = R_PPC_VLE_SDAREL_LO16A;
   1974      1.1  christos       break;
   1975      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
   1976      1.1  christos       r = R_PPC_VLE_SDAREL_LO16D;
   1977      1.1  christos       break;
   1978      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
   1979      1.1  christos       r = R_PPC_VLE_SDAREL_HI16A;
   1980      1.1  christos       break;
   1981      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
   1982      1.1  christos       r = R_PPC_VLE_SDAREL_HI16D;
   1983      1.1  christos       break;
   1984      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
   1985      1.1  christos       r = R_PPC_VLE_SDAREL_HA16A;
   1986      1.1  christos       break;
   1987      1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
   1988      1.1  christos       r = R_PPC_VLE_SDAREL_HA16D;
   1989      1.1  christos       break;
   1990      1.1  christos     case BFD_RELOC_16_PCREL:		r = R_PPC_REL16;		break;
   1991      1.1  christos     case BFD_RELOC_LO16_PCREL:		r = R_PPC_REL16_LO;		break;
   1992      1.1  christos     case BFD_RELOC_HI16_PCREL:		r = R_PPC_REL16_HI;		break;
   1993      1.1  christos     case BFD_RELOC_HI16_S_PCREL:	r = R_PPC_REL16_HA;		break;
   1994      1.1  christos     case BFD_RELOC_VTABLE_INHERIT:	r = R_PPC_GNU_VTINHERIT;	break;
   1995      1.1  christos     case BFD_RELOC_VTABLE_ENTRY:	r = R_PPC_GNU_VTENTRY;		break;
   1996      1.1  christos     }
   1997      1.1  christos 
   1998      1.1  christos   return ppc_elf_howto_table[r];
   1999      1.1  christos };
   2000      1.1  christos 
   2001      1.1  christos static reloc_howto_type *
   2002      1.1  christos ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   2003      1.1  christos 			   const char *r_name)
   2004      1.1  christos {
   2005      1.1  christos   unsigned int i;
   2006      1.1  christos 
   2007      1.1  christos   for (i = 0;
   2008      1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   2009      1.1  christos        i++)
   2010      1.1  christos     if (ppc_elf_howto_raw[i].name != NULL
   2011      1.1  christos 	&& strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
   2012      1.1  christos       return &ppc_elf_howto_raw[i];
   2013      1.1  christos 
   2014      1.1  christos   return NULL;
   2015      1.1  christos }
   2016      1.1  christos 
   2017      1.1  christos /* Set the howto pointer for a PowerPC ELF reloc.  */
   2018      1.1  christos 
   2019      1.1  christos static void
   2020      1.1  christos ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
   2021      1.1  christos 		       arelent *cache_ptr,
   2022  1.3.2.1  pgoyette 		       Elf_Internal_Rela *dst)
   2023  1.3.2.1  pgoyette {
   2024      1.1  christos   unsigned int r_type;
   2025      1.1  christos 
   2026      1.1  christos   /* Initialize howto table if not already done.  */
   2027      1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   2028  1.3.2.1  pgoyette     ppc_elf_howto_init ();
   2029  1.3.2.1  pgoyette 
   2030  1.3.2.1  pgoyette   r_type = ELF32_R_TYPE (dst->r_info);
   2031  1.3.2.1  pgoyette   if (r_type >= R_PPC_max)
   2032  1.3.2.1  pgoyette     {
   2033  1.3.2.1  pgoyette       (*_bfd_error_handler) (_("%B: unrecognised PPC reloc number: %d"),
   2034  1.3.2.1  pgoyette 			     abfd, r_type);
   2035  1.3.2.1  pgoyette       bfd_set_error (bfd_error_bad_value);
   2036  1.3.2.1  pgoyette       r_type = R_PPC_NONE;
   2037      1.1  christos     }
   2038      1.1  christos   cache_ptr->howto = ppc_elf_howto_table[r_type];
   2039      1.1  christos 
   2040      1.1  christos   /* Just because the above assert didn't trigger doesn't mean that
   2041      1.1  christos      ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation.  */
   2042      1.1  christos   if (!cache_ptr->howto)
   2043  1.3.2.1  pgoyette     {
   2044      1.1  christos       (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
   2045      1.1  christos                              abfd, r_type);
   2046      1.1  christos       bfd_set_error (bfd_error_bad_value);
   2047      1.1  christos 
   2048      1.1  christos       cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
   2049      1.1  christos     }
   2050      1.1  christos }
   2051      1.1  christos 
   2052      1.1  christos /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs.  */
   2053      1.1  christos 
   2054      1.1  christos static bfd_reloc_status_type
   2055      1.1  christos ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
   2056      1.1  christos 			 arelent *reloc_entry,
   2057      1.1  christos 			 asymbol *symbol,
   2058      1.1  christos 			 void *data ATTRIBUTE_UNUSED,
   2059      1.1  christos 			 asection *input_section,
   2060      1.1  christos 			 bfd *output_bfd,
   2061      1.1  christos 			 char **error_message ATTRIBUTE_UNUSED)
   2062      1.1  christos {
   2063      1.1  christos   bfd_vma relocation;
   2064      1.1  christos 
   2065      1.1  christos   if (output_bfd != NULL)
   2066      1.1  christos     {
   2067      1.1  christos       reloc_entry->address += input_section->output_offset;
   2068      1.1  christos       return bfd_reloc_ok;
   2069      1.1  christos     }
   2070      1.1  christos 
   2071      1.1  christos   if (bfd_is_com_section (symbol->section))
   2072      1.1  christos     relocation = 0;
   2073      1.1  christos   else
   2074      1.1  christos     relocation = symbol->value;
   2075      1.1  christos 
   2076      1.1  christos   relocation += symbol->section->output_section->vma;
   2077      1.1  christos   relocation += symbol->section->output_offset;
   2078      1.1  christos   relocation += reloc_entry->addend;
   2079      1.1  christos   if (reloc_entry->howto->pc_relative)
   2080      1.1  christos     relocation -= reloc_entry->address;
   2081      1.1  christos 
   2082      1.1  christos   reloc_entry->addend += (relocation & 0x8000) << 1;
   2083      1.1  christos 
   2084      1.1  christos   return bfd_reloc_continue;
   2085      1.1  christos }
   2086      1.1  christos 
   2087      1.1  christos static bfd_reloc_status_type
   2088      1.1  christos ppc_elf_unhandled_reloc (bfd *abfd,
   2089      1.1  christos 			 arelent *reloc_entry,
   2090      1.1  christos 			 asymbol *symbol,
   2091      1.1  christos 			 void *data,
   2092      1.1  christos 			 asection *input_section,
   2093      1.1  christos 			 bfd *output_bfd,
   2094      1.1  christos 			 char **error_message)
   2095      1.1  christos {
   2096      1.1  christos   /* If this is a relocatable link (output_bfd test tells us), just
   2097      1.1  christos      call the generic function.  Any adjustment will be done at final
   2098      1.1  christos      link time.  */
   2099      1.1  christos   if (output_bfd != NULL)
   2100      1.1  christos     return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
   2101      1.1  christos 				  input_section, output_bfd, error_message);
   2102      1.1  christos 
   2103      1.1  christos   if (error_message != NULL)
   2104      1.1  christos     {
   2105      1.1  christos       static char buf[60];
   2106      1.1  christos       sprintf (buf, _("generic linker can't handle %s"),
   2107      1.1  christos 	       reloc_entry->howto->name);
   2108      1.1  christos       *error_message = buf;
   2109      1.1  christos     }
   2110      1.1  christos   return bfd_reloc_dangerous;
   2111      1.1  christos }
   2112      1.1  christos 
   2113      1.1  christos /* Sections created by the linker.  */
   2115      1.1  christos 
   2116      1.1  christos typedef struct elf_linker_section
   2117      1.1  christos {
   2118      1.1  christos   /* Pointer to the bfd section.  */
   2119      1.1  christos   asection *section;
   2120      1.1  christos   /* Section name.  */
   2121      1.1  christos   const char *name;
   2122      1.1  christos   /* Associated bss section name.  */
   2123      1.1  christos   const char *bss_name;
   2124      1.1  christos   /* Associated symbol name.  */
   2125      1.1  christos   const char *sym_name;
   2126      1.1  christos   /* Associated symbol.  */
   2127      1.1  christos   struct elf_link_hash_entry *sym;
   2128      1.1  christos } elf_linker_section_t;
   2129      1.1  christos 
   2130      1.1  christos /* Linked list of allocated pointer entries.  This hangs off of the
   2131      1.1  christos    symbol lists, and provides allows us to return different pointers,
   2132      1.1  christos    based on different addend's.  */
   2133      1.1  christos 
   2134      1.1  christos typedef struct elf_linker_section_pointers
   2135      1.1  christos {
   2136      1.1  christos   /* next allocated pointer for this symbol */
   2137      1.1  christos   struct elf_linker_section_pointers *next;
   2138      1.1  christos   /* offset of pointer from beginning of section */
   2139      1.1  christos   bfd_vma offset;
   2140      1.1  christos   /* addend used */
   2141      1.1  christos   bfd_vma addend;
   2142      1.1  christos   /* which linker section this is */
   2143      1.1  christos   elf_linker_section_t *lsect;
   2144      1.1  christos } elf_linker_section_pointers_t;
   2145      1.1  christos 
   2146      1.1  christos struct ppc_elf_obj_tdata
   2147      1.1  christos {
   2148      1.1  christos   struct elf_obj_tdata elf;
   2149      1.1  christos 
   2150      1.1  christos   /* A mapping from local symbols to offsets into the various linker
   2151      1.1  christos      sections added.  This is index by the symbol index.  */
   2152      1.1  christos   elf_linker_section_pointers_t **linker_section_pointers;
   2153      1.1  christos 
   2154      1.1  christos   /* Flags used to auto-detect plt type.  */
   2155      1.1  christos   unsigned int makes_plt_call : 1;
   2156      1.1  christos   unsigned int has_rel16 : 1;
   2157      1.1  christos };
   2158      1.1  christos 
   2159      1.1  christos #define ppc_elf_tdata(bfd) \
   2160      1.1  christos   ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
   2161      1.1  christos 
   2162      1.1  christos #define elf_local_ptr_offsets(bfd) \
   2163      1.1  christos   (ppc_elf_tdata (bfd)->linker_section_pointers)
   2164      1.1  christos 
   2165      1.1  christos #define is_ppc_elf(bfd) \
   2166      1.1  christos   (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
   2167      1.1  christos    && elf_object_id (bfd) == PPC32_ELF_DATA)
   2168      1.1  christos 
   2169      1.1  christos /* Override the generic function because we store some extras.  */
   2170      1.1  christos 
   2171      1.1  christos static bfd_boolean
   2172      1.1  christos ppc_elf_mkobject (bfd *abfd)
   2173      1.1  christos {
   2174      1.1  christos   return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
   2175      1.1  christos 				  PPC32_ELF_DATA);
   2176      1.1  christos }
   2177      1.1  christos 
   2178      1.1  christos /* Fix bad default arch selected for a 32 bit input bfd when the
   2179      1.1  christos    default is 64 bit.  */
   2180      1.1  christos 
   2181      1.1  christos static bfd_boolean
   2182      1.1  christos ppc_elf_object_p (bfd *abfd)
   2183      1.1  christos {
   2184      1.1  christos   if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
   2185      1.1  christos     {
   2186      1.1  christos       Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
   2187      1.1  christos 
   2188      1.1  christos       if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
   2189      1.1  christos 	{
   2190      1.1  christos 	  /* Relies on arch after 64 bit default being 32 bit default.  */
   2191      1.1  christos 	  abfd->arch_info = abfd->arch_info->next;
   2192      1.1  christos 	  BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
   2193      1.1  christos 	}
   2194      1.1  christos     }
   2195      1.1  christos   return TRUE;
   2196      1.1  christos }
   2197      1.1  christos 
   2198      1.1  christos /* Function to set whether a module needs the -mrelocatable bit set.  */
   2199      1.1  christos 
   2200      1.1  christos static bfd_boolean
   2201      1.1  christos ppc_elf_set_private_flags (bfd *abfd, flagword flags)
   2202      1.1  christos {
   2203      1.1  christos   BFD_ASSERT (!elf_flags_init (abfd)
   2204      1.1  christos 	      || elf_elfheader (abfd)->e_flags == flags);
   2205      1.1  christos 
   2206      1.1  christos   elf_elfheader (abfd)->e_flags = flags;
   2207      1.1  christos   elf_flags_init (abfd) = TRUE;
   2208      1.1  christos   return TRUE;
   2209      1.1  christos }
   2210      1.1  christos 
   2211      1.1  christos /* Support for core dump NOTE sections.  */
   2212      1.1  christos 
   2213      1.1  christos static bfd_boolean
   2214      1.1  christos ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
   2215      1.1  christos {
   2216      1.1  christos   int offset;
   2217      1.1  christos   unsigned int size;
   2218      1.1  christos 
   2219      1.1  christos   switch (note->descsz)
   2220      1.1  christos     {
   2221      1.1  christos     default:
   2222      1.1  christos       return FALSE;
   2223      1.1  christos 
   2224      1.1  christos     case 268:		/* Linux/PPC.  */
   2225      1.1  christos       /* pr_cursig */
   2226      1.1  christos       elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
   2227      1.1  christos 
   2228      1.1  christos       /* pr_pid */
   2229      1.1  christos       elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
   2230      1.1  christos 
   2231      1.1  christos       /* pr_reg */
   2232      1.1  christos       offset = 72;
   2233      1.1  christos       size = 192;
   2234      1.1  christos 
   2235      1.1  christos       break;
   2236      1.1  christos     }
   2237      1.1  christos 
   2238      1.1  christos   /* Make a ".reg/999" section.  */
   2239      1.1  christos   return _bfd_elfcore_make_pseudosection (abfd, ".reg",
   2240      1.1  christos 					  size, note->descpos + offset);
   2241      1.1  christos }
   2242      1.1  christos 
   2243      1.1  christos static bfd_boolean
   2244      1.1  christos ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
   2245      1.1  christos {
   2246      1.1  christos   switch (note->descsz)
   2247      1.1  christos     {
   2248      1.1  christos     default:
   2249      1.1  christos       return FALSE;
   2250      1.1  christos 
   2251      1.1  christos     case 128:		/* Linux/PPC elf_prpsinfo.  */
   2252      1.1  christos       elf_tdata (abfd)->core->pid
   2253      1.1  christos 	= bfd_get_32 (abfd, note->descdata + 16);
   2254      1.1  christos       elf_tdata (abfd)->core->program
   2255      1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
   2256      1.1  christos       elf_tdata (abfd)->core->command
   2257      1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
   2258      1.1  christos     }
   2259      1.1  christos 
   2260      1.1  christos   /* Note that for some reason, a spurious space is tacked
   2261      1.1  christos      onto the end of the args in some (at least one anyway)
   2262      1.1  christos      implementations, so strip it off if it exists.  */
   2263      1.1  christos 
   2264      1.1  christos   {
   2265      1.1  christos     char *command = elf_tdata (abfd)->core->command;
   2266      1.1  christos     int n = strlen (command);
   2267      1.1  christos 
   2268      1.1  christos     if (0 < n && command[n - 1] == ' ')
   2269      1.1  christos       command[n - 1] = '\0';
   2270      1.1  christos   }
   2271      1.1  christos 
   2272      1.1  christos   return TRUE;
   2273      1.1  christos }
   2274      1.1  christos 
   2275      1.1  christos char *
   2276      1.1  christos elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz,
   2277      1.1  christos 				      const struct elf_internal_linux_prpsinfo *prpsinfo)
   2278      1.1  christos {
   2279      1.1  christos   struct elf_external_ppc_linux_prpsinfo32 data;
   2280      1.1  christos 
   2281      1.1  christos   memset (&data, 0, sizeof (data));
   2282      1.1  christos   PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data);
   2283      1.1  christos 
   2284      1.1  christos   return elfcore_write_note (abfd, buf, bufsiz,
   2285      1.1  christos 			     "CORE", NT_PRPSINFO, &data, sizeof (data));
   2286      1.1  christos }
   2287      1.1  christos 
   2288      1.1  christos static char *
   2289      1.1  christos ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
   2290      1.1  christos {
   2291      1.1  christos   switch (note_type)
   2292      1.1  christos     {
   2293      1.1  christos     default:
   2294      1.1  christos       return NULL;
   2295      1.1  christos 
   2296      1.1  christos     case NT_PRPSINFO:
   2297      1.1  christos       {
   2298      1.1  christos 	char data[128];
   2299      1.1  christos 	va_list ap;
   2300      1.1  christos 
   2301      1.1  christos 	va_start (ap, note_type);
   2302      1.1  christos 	memset (data, 0, sizeof (data));
   2303      1.1  christos 	strncpy (data + 32, va_arg (ap, const char *), 16);
   2304      1.1  christos 	strncpy (data + 48, va_arg (ap, const char *), 80);
   2305      1.1  christos 	va_end (ap);
   2306      1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2307      1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2308      1.1  christos       }
   2309      1.1  christos 
   2310      1.1  christos     case NT_PRSTATUS:
   2311      1.1  christos       {
   2312      1.1  christos 	char data[268];
   2313      1.1  christos 	va_list ap;
   2314      1.1  christos 	long pid;
   2315      1.1  christos 	int cursig;
   2316      1.1  christos 	const void *greg;
   2317      1.1  christos 
   2318      1.1  christos 	va_start (ap, note_type);
   2319      1.1  christos 	memset (data, 0, 72);
   2320      1.1  christos 	pid = va_arg (ap, long);
   2321      1.1  christos 	bfd_put_32 (abfd, pid, data + 24);
   2322      1.1  christos 	cursig = va_arg (ap, int);
   2323      1.1  christos 	bfd_put_16 (abfd, cursig, data + 12);
   2324      1.1  christos 	greg = va_arg (ap, const void *);
   2325      1.1  christos 	memcpy (data + 72, greg, 192);
   2326      1.1  christos 	memset (data + 264, 0, 4);
   2327      1.1  christos 	va_end (ap);
   2328      1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2329      1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2330      1.1  christos       }
   2331      1.1  christos     }
   2332      1.1  christos }
   2333      1.1  christos 
   2334      1.1  christos static flagword
   2335      1.1  christos ppc_elf_lookup_section_flags (char *flag_name)
   2336      1.1  christos {
   2337      1.1  christos 
   2338      1.1  christos   if (!strcmp (flag_name, "SHF_PPC_VLE"))
   2339      1.1  christos     return SHF_PPC_VLE;
   2340      1.1  christos 
   2341      1.1  christos   return 0;
   2342      1.1  christos }
   2343      1.1  christos 
   2344      1.1  christos /* Add the VLE flag if required.  */
   2345      1.1  christos 
   2346      1.1  christos bfd_boolean
   2347      1.1  christos ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
   2348      1.1  christos {
   2349      1.1  christos   if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
   2350      1.1  christos       && (shdr->sh_flags & SHF_EXECINSTR) != 0)
   2351      1.1  christos     shdr->sh_flags |= SHF_PPC_VLE;
   2352      1.1  christos 
   2353      1.1  christos   return TRUE;
   2354      1.1  christos }
   2355      1.1  christos 
   2356      1.1  christos /* Return address for Ith PLT stub in section PLT, for relocation REL
   2357      1.1  christos    or (bfd_vma) -1 if it should not be included.  */
   2358      1.1  christos 
   2359      1.1  christos static bfd_vma
   2360      1.1  christos ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
   2361      1.1  christos 		     const asection *plt ATTRIBUTE_UNUSED,
   2362      1.1  christos 		     const arelent *rel)
   2363      1.1  christos {
   2364      1.1  christos   return rel->address;
   2365      1.1  christos }
   2366      1.1  christos 
   2367      1.1  christos /* Handle a PowerPC specific section when reading an object file.  This
   2368      1.1  christos    is called when bfd_section_from_shdr finds a section with an unknown
   2369      1.1  christos    type.  */
   2370      1.1  christos 
   2371      1.1  christos static bfd_boolean
   2372      1.1  christos ppc_elf_section_from_shdr (bfd *abfd,
   2373      1.1  christos 			   Elf_Internal_Shdr *hdr,
   2374      1.1  christos 			   const char *name,
   2375      1.1  christos 			   int shindex)
   2376      1.1  christos {
   2377      1.1  christos   asection *newsect;
   2378      1.1  christos   flagword flags;
   2379      1.1  christos 
   2380      1.1  christos   if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
   2381      1.1  christos     return FALSE;
   2382      1.1  christos 
   2383      1.1  christos   newsect = hdr->bfd_section;
   2384      1.1  christos   flags = bfd_get_section_flags (abfd, newsect);
   2385      1.1  christos   if (hdr->sh_flags & SHF_EXCLUDE)
   2386      1.1  christos     flags |= SEC_EXCLUDE;
   2387      1.1  christos 
   2388      1.1  christos   if (hdr->sh_type == SHT_ORDERED)
   2389      1.1  christos     flags |= SEC_SORT_ENTRIES;
   2390      1.1  christos 
   2391      1.1  christos   bfd_set_section_flags (abfd, newsect, flags);
   2392      1.1  christos   return TRUE;
   2393      1.1  christos }
   2394      1.1  christos 
   2395      1.1  christos /* Set up any other section flags and such that may be necessary.  */
   2396      1.1  christos 
   2397      1.1  christos static bfd_boolean
   2398      1.1  christos ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
   2399      1.1  christos 		       Elf_Internal_Shdr *shdr,
   2400      1.1  christos 		       asection *asect)
   2401      1.1  christos {
   2402      1.1  christos   if ((asect->flags & SEC_SORT_ENTRIES) != 0)
   2403      1.1  christos     shdr->sh_type = SHT_ORDERED;
   2404      1.1  christos 
   2405      1.1  christos   return TRUE;
   2406      1.1  christos }
   2407      1.1  christos 
   2408      1.1  christos /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
   2409      1.1  christos    need to bump up the number of section headers.  */
   2410      1.1  christos 
   2411      1.1  christos static int
   2412      1.1  christos ppc_elf_additional_program_headers (bfd *abfd,
   2413      1.1  christos 				    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2414      1.1  christos {
   2415      1.1  christos   asection *s;
   2416      1.1  christos   int ret = 0;
   2417      1.1  christos 
   2418      1.1  christos   s = bfd_get_section_by_name (abfd, ".sbss2");
   2419      1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2420      1.1  christos     ++ret;
   2421      1.1  christos 
   2422      1.1  christos   s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
   2423      1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2424      1.1  christos     ++ret;
   2425      1.1  christos 
   2426      1.1  christos   return ret;
   2427      1.1  christos }
   2428      1.1  christos 
   2429      1.1  christos /* Modify the segment map for VLE executables.  */
   2430      1.1  christos 
   2431      1.1  christos bfd_boolean
   2432      1.1  christos ppc_elf_modify_segment_map (bfd *abfd,
   2433      1.1  christos 			    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2434      1.1  christos {
   2435      1.1  christos   struct elf_segment_map *m, *n;
   2436      1.1  christos   bfd_size_type amt;
   2437      1.1  christos   unsigned int j, k;
   2438      1.1  christos   bfd_boolean sect0_vle, sectj_vle;
   2439      1.1  christos 
   2440      1.1  christos   /* At this point in the link, output sections have already been sorted by
   2441      1.1  christos      LMA and assigned to segments.  All that is left to do is to ensure
   2442      1.1  christos      there is no mixing of VLE & non-VLE sections in a text segment.
   2443      1.1  christos      If we find that case, we split the segment.
   2444      1.1  christos      We maintain the original output section order.  */
   2445      1.1  christos 
   2446      1.1  christos   for (m = elf_seg_map (abfd); m != NULL; m = m->next)
   2447      1.1  christos     {
   2448      1.1  christos       if (m->count == 0)
   2449      1.1  christos 	continue;
   2450      1.1  christos 
   2451      1.1  christos       sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
   2452      1.1  christos       for (j = 1; j < m->count; ++j)
   2453      1.1  christos 	{
   2454      1.1  christos 	  sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
   2455      1.1  christos 
   2456      1.1  christos 	  if (sectj_vle != sect0_vle)
   2457      1.1  christos 	    break;
   2458      1.1  christos         }
   2459      1.1  christos       if (j >= m->count)
   2460      1.1  christos 	continue;
   2461      1.1  christos 
   2462      1.1  christos       /* sections 0..j-1 stay in this (current) segment,
   2463      1.1  christos 	 the remainder are put in a new segment.
   2464      1.1  christos 	 The scan resumes with the new segment.  */
   2465      1.1  christos 
   2466      1.1  christos       /* Fix the new segment.  */
   2467      1.1  christos       amt = sizeof (struct elf_segment_map);
   2468      1.1  christos       amt += (m->count - j - 1) * sizeof (asection *);
   2469      1.1  christos       n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
   2470      1.1  christos       if (n == NULL)
   2471      1.1  christos         return FALSE;
   2472      1.1  christos 
   2473      1.1  christos       n->p_type = PT_LOAD;
   2474      1.1  christos       n->p_flags = PF_X | PF_R;
   2475      1.1  christos       if (sectj_vle)
   2476      1.1  christos         n->p_flags |= PF_PPC_VLE;
   2477      1.1  christos       n->count = m->count - j;
   2478      1.1  christos       for (k = 0; k < n->count; ++k)
   2479      1.1  christos         {
   2480      1.1  christos           n->sections[k] = m->sections[j+k];
   2481      1.1  christos           m->sections[j+k] = NULL;
   2482      1.1  christos 	}
   2483      1.1  christos       n->next = m->next;
   2484      1.1  christos       m->next = n;
   2485      1.1  christos 
   2486      1.1  christos       /* Fix the current segment  */
   2487      1.1  christos       m->count = j;
   2488      1.1  christos     }
   2489      1.1  christos 
   2490      1.1  christos   return TRUE;
   2491      1.1  christos }
   2492      1.1  christos 
   2493      1.1  christos /* Add extra PPC sections -- Note, for now, make .sbss2 and
   2494      1.1  christos    .PPC.EMB.sbss0 a normal section, and not a bss section so
   2495      1.1  christos    that the linker doesn't crater when trying to make more than
   2496      1.1  christos    2 sections.  */
   2497      1.1  christos 
   2498      1.1  christos static const struct bfd_elf_special_section ppc_elf_special_sections[] =
   2499      1.1  christos {
   2500      1.1  christos   { STRING_COMMA_LEN (".plt"),             0, SHT_NOBITS,   SHF_ALLOC + SHF_EXECINSTR },
   2501      1.1  christos   { STRING_COMMA_LEN (".sbss"),           -2, SHT_NOBITS,   SHF_ALLOC + SHF_WRITE },
   2502      1.1  christos   { STRING_COMMA_LEN (".sbss2"),          -2, SHT_PROGBITS, SHF_ALLOC },
   2503      1.1  christos   { STRING_COMMA_LEN (".sdata"),          -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
   2504      1.1  christos   { STRING_COMMA_LEN (".sdata2"),         -2, SHT_PROGBITS, SHF_ALLOC },
   2505      1.1  christos   { STRING_COMMA_LEN (".tags"),            0, SHT_ORDERED,  SHF_ALLOC },
   2506      1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE,     0 },
   2507      1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sbss0"),   0, SHT_PROGBITS, SHF_ALLOC },
   2508      1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sdata0"),  0, SHT_PROGBITS, SHF_ALLOC },
   2509      1.1  christos   { NULL,                              0,  0, 0,            0 }
   2510      1.1  christos };
   2511      1.1  christos 
   2512      1.1  christos /* This is what we want for new plt/got.  */
   2513      1.1  christos static struct bfd_elf_special_section ppc_alt_plt =
   2514      1.1  christos   { STRING_COMMA_LEN (".plt"),             0, SHT_PROGBITS, SHF_ALLOC };
   2515      1.1  christos 
   2516      1.1  christos static const struct bfd_elf_special_section *
   2517      1.1  christos ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
   2518      1.1  christos {
   2519      1.1  christos   const struct bfd_elf_special_section *ssect;
   2520      1.1  christos 
   2521      1.1  christos   /* See if this is one of the special sections.  */
   2522      1.1  christos   if (sec->name == NULL)
   2523      1.1  christos     return NULL;
   2524      1.1  christos 
   2525      1.1  christos   ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
   2526      1.1  christos 					sec->use_rela_p);
   2527      1.1  christos   if (ssect != NULL)
   2528      1.1  christos     {
   2529      1.1  christos       if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
   2530      1.1  christos 	ssect = &ppc_alt_plt;
   2531      1.1  christos       return ssect;
   2532      1.1  christos     }
   2533      1.1  christos 
   2534      1.1  christos   return _bfd_elf_get_sec_type_attr (abfd, sec);
   2535      1.1  christos }
   2536      1.1  christos 
   2537      1.1  christos /* Very simple linked list structure for recording apuinfo values.  */
   2539      1.1  christos typedef struct apuinfo_list
   2540      1.1  christos {
   2541      1.1  christos   struct apuinfo_list *next;
   2542      1.1  christos   unsigned long value;
   2543      1.1  christos }
   2544      1.1  christos apuinfo_list;
   2545      1.1  christos 
   2546      1.1  christos static apuinfo_list *head;
   2547      1.1  christos static bfd_boolean apuinfo_set;
   2548      1.1  christos 
   2549      1.1  christos static void
   2550      1.1  christos apuinfo_list_init (void)
   2551      1.1  christos {
   2552      1.1  christos   head = NULL;
   2553      1.1  christos   apuinfo_set = FALSE;
   2554      1.1  christos }
   2555      1.1  christos 
   2556      1.1  christos static void
   2557      1.1  christos apuinfo_list_add (unsigned long value)
   2558      1.1  christos {
   2559      1.1  christos   apuinfo_list *entry = head;
   2560      1.1  christos 
   2561      1.1  christos   while (entry != NULL)
   2562      1.1  christos     {
   2563      1.1  christos       if (entry->value == value)
   2564      1.1  christos 	return;
   2565      1.1  christos       entry = entry->next;
   2566      1.1  christos     }
   2567      1.1  christos 
   2568      1.1  christos   entry = bfd_malloc (sizeof (* entry));
   2569      1.1  christos   if (entry == NULL)
   2570      1.1  christos     return;
   2571      1.1  christos 
   2572      1.1  christos   entry->value = value;
   2573      1.1  christos   entry->next  = head;
   2574      1.1  christos   head = entry;
   2575      1.1  christos }
   2576      1.1  christos 
   2577      1.1  christos static unsigned
   2578      1.1  christos apuinfo_list_length (void)
   2579      1.1  christos {
   2580      1.1  christos   apuinfo_list *entry;
   2581      1.1  christos   unsigned long count;
   2582      1.1  christos 
   2583      1.1  christos   for (entry = head, count = 0;
   2584      1.1  christos        entry;
   2585      1.1  christos        entry = entry->next)
   2586      1.1  christos     ++ count;
   2587      1.1  christos 
   2588      1.1  christos   return count;
   2589      1.1  christos }
   2590      1.1  christos 
   2591      1.1  christos static inline unsigned long
   2592      1.1  christos apuinfo_list_element (unsigned long number)
   2593      1.1  christos {
   2594      1.1  christos   apuinfo_list * entry;
   2595      1.1  christos 
   2596      1.1  christos   for (entry = head;
   2597      1.1  christos        entry && number --;
   2598      1.1  christos        entry = entry->next)
   2599      1.1  christos     ;
   2600      1.1  christos 
   2601      1.1  christos   return entry ? entry->value : 0;
   2602      1.1  christos }
   2603      1.1  christos 
   2604      1.1  christos static void
   2605      1.1  christos apuinfo_list_finish (void)
   2606      1.1  christos {
   2607      1.1  christos   apuinfo_list *entry;
   2608      1.1  christos 
   2609      1.1  christos   for (entry = head; entry;)
   2610      1.1  christos     {
   2611      1.1  christos       apuinfo_list *next = entry->next;
   2612      1.1  christos       free (entry);
   2613      1.1  christos       entry = next;
   2614      1.1  christos     }
   2615      1.1  christos 
   2616      1.1  christos   head = NULL;
   2617      1.1  christos }
   2618      1.1  christos 
   2619      1.1  christos #define APUINFO_SECTION_NAME	".PPC.EMB.apuinfo"
   2620      1.1  christos #define APUINFO_LABEL		"APUinfo"
   2621      1.1  christos 
   2622      1.1  christos /* Scan the input BFDs and create a linked list of
   2623      1.1  christos    the APUinfo values that will need to be emitted.  */
   2624      1.1  christos 
   2625      1.1  christos static void
   2626      1.1  christos ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
   2627      1.1  christos {
   2628      1.1  christos   bfd *ibfd;
   2629      1.1  christos   asection *asec;
   2630      1.1  christos   char *buffer = NULL;
   2631      1.1  christos   bfd_size_type largest_input_size = 0;
   2632      1.1  christos   unsigned i;
   2633      1.1  christos   unsigned long length;
   2634      1.1  christos   const char *error_message = NULL;
   2635      1.1  christos 
   2636      1.1  christos   if (link_info == NULL)
   2637      1.1  christos     return;
   2638      1.3  christos 
   2639      1.1  christos   apuinfo_list_init ();
   2640      1.1  christos 
   2641      1.1  christos   /* Read in the input sections contents.  */
   2642      1.1  christos   for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
   2643      1.1  christos     {
   2644      1.1  christos       unsigned long datum;
   2645      1.1  christos 
   2646      1.1  christos       asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
   2647      1.1  christos       if (asec == NULL)
   2648      1.1  christos 	continue;
   2649      1.1  christos 
   2650      1.1  christos       error_message = _("corrupt %s section in %B");
   2651      1.1  christos       length = asec->size;
   2652      1.1  christos       if (length < 20)
   2653      1.1  christos 	goto fail;
   2654      1.1  christos 
   2655      1.1  christos       apuinfo_set = TRUE;
   2656      1.1  christos       if (largest_input_size < asec->size)
   2657      1.1  christos 	{
   2658      1.1  christos 	  if (buffer)
   2659      1.1  christos 	    free (buffer);
   2660      1.1  christos 	  largest_input_size = asec->size;
   2661      1.1  christos 	  buffer = bfd_malloc (largest_input_size);
   2662      1.1  christos 	  if (!buffer)
   2663      1.1  christos 	    return;
   2664      1.1  christos 	}
   2665      1.1  christos 
   2666      1.1  christos       if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
   2667      1.1  christos 	  || (bfd_bread (buffer, length, ibfd) != length))
   2668      1.1  christos 	{
   2669      1.1  christos 	  error_message = _("unable to read in %s section from %B");
   2670      1.1  christos 	  goto fail;
   2671      1.1  christos 	}
   2672      1.1  christos 
   2673      1.1  christos       /* Verify the contents of the header.  Note - we have to
   2674      1.1  christos 	 extract the values this way in order to allow for a
   2675      1.1  christos 	 host whose endian-ness is different from the target.  */
   2676      1.1  christos       datum = bfd_get_32 (ibfd, buffer);
   2677      1.1  christos       if (datum != sizeof APUINFO_LABEL)
   2678      1.1  christos 	goto fail;
   2679      1.1  christos 
   2680      1.1  christos       datum = bfd_get_32 (ibfd, buffer + 8);
   2681      1.1  christos       if (datum != 0x2)
   2682      1.1  christos 	goto fail;
   2683      1.1  christos 
   2684      1.1  christos       if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
   2685      1.1  christos 	goto fail;
   2686      1.1  christos 
   2687      1.1  christos       /* Get the number of bytes used for apuinfo entries.  */
   2688      1.1  christos       datum = bfd_get_32 (ibfd, buffer + 4);
   2689      1.1  christos       if (datum + 20 != length)
   2690      1.1  christos 	goto fail;
   2691      1.1  christos 
   2692      1.1  christos       /* Scan the apuinfo section, building a list of apuinfo numbers.  */
   2693      1.1  christos       for (i = 0; i < datum; i += 4)
   2694      1.1  christos 	apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
   2695      1.1  christos     }
   2696      1.1  christos 
   2697      1.1  christos   error_message = NULL;
   2698      1.1  christos 
   2699      1.1  christos   if (apuinfo_set)
   2700      1.1  christos     {
   2701      1.1  christos       /* Compute the size of the output section.  */
   2702      1.1  christos       unsigned num_entries = apuinfo_list_length ();
   2703      1.1  christos 
   2704      1.1  christos       /* Set the output section size, if it exists.  */
   2705      1.1  christos       asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2706      1.1  christos 
   2707      1.1  christos       if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
   2708      1.1  christos 	{
   2709      1.1  christos 	  ibfd = abfd;
   2710      1.1  christos 	  error_message = _("warning: unable to set size of %s section in %B");
   2711      1.1  christos 	}
   2712      1.1  christos     }
   2713      1.1  christos 
   2714      1.1  christos  fail:
   2715      1.1  christos   if (buffer)
   2716      1.1  christos     free (buffer);
   2717      1.1  christos 
   2718      1.1  christos   if (error_message)
   2719      1.1  christos     (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
   2720      1.1  christos }
   2721      1.1  christos 
   2722      1.1  christos /* Prevent the output section from accumulating the input sections'
   2723      1.1  christos    contents.  We have already stored this in our linked list structure.  */
   2724      1.1  christos 
   2725      1.1  christos static bfd_boolean
   2726      1.1  christos ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
   2727      1.1  christos 		       struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
   2728      1.1  christos 		       asection *asec,
   2729      1.1  christos 		       bfd_byte *contents ATTRIBUTE_UNUSED)
   2730      1.1  christos {
   2731      1.1  christos   return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
   2732      1.1  christos }
   2733      1.1  christos 
   2734      1.1  christos /* Finally we can generate the output section.  */
   2735      1.1  christos 
   2736      1.1  christos static void
   2737      1.1  christos ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
   2738      1.1  christos {
   2739      1.1  christos   bfd_byte *buffer;
   2740      1.1  christos   asection *asec;
   2741      1.1  christos   unsigned i;
   2742      1.1  christos   unsigned num_entries;
   2743      1.1  christos   bfd_size_type length;
   2744      1.1  christos 
   2745      1.1  christos   asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2746      1.1  christos   if (asec == NULL)
   2747      1.1  christos     return;
   2748      1.1  christos 
   2749      1.1  christos   if (!apuinfo_set)
   2750      1.1  christos     return;
   2751      1.1  christos 
   2752      1.1  christos   length = asec->size;
   2753      1.1  christos   if (length < 20)
   2754      1.1  christos     return;
   2755      1.1  christos 
   2756      1.1  christos   buffer = bfd_malloc (length);
   2757      1.1  christos   if (buffer == NULL)
   2758      1.1  christos     {
   2759      1.1  christos       (*_bfd_error_handler)
   2760      1.1  christos 	(_("failed to allocate space for new APUinfo section."));
   2761      1.1  christos       return;
   2762      1.1  christos     }
   2763      1.1  christos 
   2764      1.1  christos   /* Create the apuinfo header.  */
   2765      1.1  christos   num_entries = apuinfo_list_length ();
   2766      1.1  christos   bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
   2767      1.1  christos   bfd_put_32 (abfd, num_entries * 4, buffer + 4);
   2768      1.1  christos   bfd_put_32 (abfd, 0x2, buffer + 8);
   2769      1.1  christos   strcpy ((char *) buffer + 12, APUINFO_LABEL);
   2770      1.1  christos 
   2771      1.1  christos   length = 20;
   2772      1.1  christos   for (i = 0; i < num_entries; i++)
   2773      1.1  christos     {
   2774      1.1  christos       bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
   2775      1.1  christos       length += 4;
   2776      1.1  christos     }
   2777      1.1  christos 
   2778      1.1  christos   if (length != asec->size)
   2779      1.1  christos     (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
   2780      1.1  christos 
   2781      1.1  christos   if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
   2782      1.1  christos     (*_bfd_error_handler) (_("failed to install new APUinfo section."));
   2783      1.1  christos 
   2784      1.1  christos   free (buffer);
   2785      1.1  christos 
   2786      1.1  christos   apuinfo_list_finish ();
   2787      1.1  christos }
   2788      1.1  christos 
   2789      1.1  christos static bfd_boolean
   2791      1.1  christos is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
   2792      1.1  christos {
   2793      1.1  christos   bfd_byte buf[GLINK_ENTRY_SIZE];
   2794      1.1  christos 
   2795      1.1  christos   if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
   2796      1.1  christos     return FALSE;
   2797      1.1  christos 
   2798      1.1  christos   return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
   2799      1.1  christos 	  && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
   2800      1.1  christos 	  && bfd_get_32 (abfd, buf + 8) == MTCTR_11
   2801      1.1  christos 	  && bfd_get_32 (abfd, buf + 12) == BCTR);
   2802      1.1  christos }
   2803      1.1  christos 
   2804      1.1  christos static bfd_boolean
   2805      1.1  christos section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
   2806      1.1  christos {
   2807      1.1  christos   bfd_vma vma = *(bfd_vma *) ptr;
   2808      1.1  christos   return ((section->flags & SEC_ALLOC) != 0
   2809      1.1  christos 	  && section->vma <= vma
   2810      1.1  christos 	  && vma < section->vma + section->size);
   2811      1.1  christos }
   2812      1.1  christos 
   2813      1.1  christos static long
   2814      1.1  christos ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
   2815      1.1  christos 			      long dynsymcount, asymbol **dynsyms,
   2816      1.1  christos 			      asymbol **ret)
   2817      1.1  christos {
   2818      1.1  christos   bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
   2819      1.1  christos   asection *plt, *relplt, *dynamic, *glink;
   2820      1.1  christos   bfd_vma glink_vma = 0;
   2821      1.1  christos   bfd_vma resolv_vma = 0;
   2822      1.1  christos   bfd_vma stub_vma;
   2823      1.1  christos   asymbol *s;
   2824      1.1  christos   arelent *p;
   2825      1.1  christos   long count, i;
   2826      1.1  christos   size_t size;
   2827      1.1  christos   char *names;
   2828      1.1  christos   bfd_byte buf[4];
   2829      1.1  christos 
   2830      1.1  christos   *ret = NULL;
   2831      1.1  christos 
   2832      1.1  christos   if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
   2833      1.1  christos     return 0;
   2834      1.1  christos 
   2835      1.1  christos   if (dynsymcount <= 0)
   2836      1.1  christos     return 0;
   2837      1.1  christos 
   2838      1.1  christos   relplt = bfd_get_section_by_name (abfd, ".rela.plt");
   2839      1.1  christos   if (relplt == NULL)
   2840      1.1  christos     return 0;
   2841      1.1  christos 
   2842      1.1  christos   plt = bfd_get_section_by_name (abfd, ".plt");
   2843      1.1  christos   if (plt == NULL)
   2844      1.1  christos     return 0;
   2845      1.1  christos 
   2846      1.1  christos   /* Call common code to handle old-style executable PLTs.  */
   2847      1.1  christos   if (elf_section_flags (plt) & SHF_EXECINSTR)
   2848      1.1  christos     return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
   2849      1.1  christos 					  dynsymcount, dynsyms, ret);
   2850      1.1  christos 
   2851      1.1  christos   /* If this object was prelinked, the prelinker stored the address
   2852      1.1  christos      of .glink at got[1].  If it wasn't prelinked, got[1] will be zero.  */
   2853      1.1  christos   dynamic = bfd_get_section_by_name (abfd, ".dynamic");
   2854      1.1  christos   if (dynamic != NULL)
   2855      1.1  christos     {
   2856      1.1  christos       bfd_byte *dynbuf, *extdyn, *extdynend;
   2857      1.1  christos       size_t extdynsize;
   2858      1.1  christos       void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
   2859      1.1  christos 
   2860      1.1  christos       if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
   2861      1.1  christos 	return -1;
   2862      1.1  christos 
   2863      1.1  christos       extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
   2864      1.1  christos       swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
   2865      1.1  christos 
   2866      1.1  christos       extdyn = dynbuf;
   2867      1.1  christos       extdynend = extdyn + dynamic->size;
   2868      1.1  christos       for (; extdyn < extdynend; extdyn += extdynsize)
   2869      1.1  christos 	{
   2870      1.1  christos 	  Elf_Internal_Dyn dyn;
   2871      1.1  christos 	  (*swap_dyn_in) (abfd, extdyn, &dyn);
   2872      1.1  christos 
   2873      1.1  christos 	  if (dyn.d_tag == DT_NULL)
   2874      1.1  christos 	    break;
   2875      1.1  christos 
   2876      1.1  christos 	  if (dyn.d_tag == DT_PPC_GOT)
   2877      1.1  christos 	    {
   2878      1.1  christos 	      unsigned int g_o_t = dyn.d_un.d_val;
   2879      1.1  christos 	      asection *got = bfd_get_section_by_name (abfd, ".got");
   2880      1.1  christos 	      if (got != NULL
   2881      1.1  christos 		  && bfd_get_section_contents (abfd, got, buf,
   2882      1.1  christos 					       g_o_t - got->vma + 4, 4))
   2883      1.1  christos 		glink_vma = bfd_get_32 (abfd, buf);
   2884      1.1  christos 	      break;
   2885      1.1  christos 	    }
   2886      1.1  christos 	}
   2887      1.1  christos       free (dynbuf);
   2888      1.1  christos     }
   2889      1.1  christos 
   2890      1.1  christos   /* Otherwise we read the first plt entry.  */
   2891      1.1  christos   if (glink_vma == 0)
   2892      1.1  christos     {
   2893      1.1  christos       if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
   2894      1.1  christos 	glink_vma = bfd_get_32 (abfd, buf);
   2895      1.1  christos     }
   2896      1.1  christos 
   2897      1.1  christos   if (glink_vma == 0)
   2898      1.1  christos     return 0;
   2899      1.1  christos 
   2900      1.1  christos   /* The .glink section usually does not survive the final
   2901      1.1  christos      link; search for the section (usually .text) where the
   2902      1.1  christos      glink stubs now reside.  */
   2903      1.1  christos   glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
   2904      1.1  christos   if (glink == NULL)
   2905      1.1  christos     return 0;
   2906      1.1  christos 
   2907      1.1  christos   /* Determine glink PLT resolver by reading the relative branch
   2908      1.1  christos      from the first glink stub.  */
   2909      1.1  christos   if (bfd_get_section_contents (abfd, glink, buf,
   2910      1.1  christos 				glink_vma - glink->vma, 4))
   2911      1.1  christos     {
   2912      1.1  christos       unsigned int insn = bfd_get_32 (abfd, buf);
   2913      1.1  christos 
   2914      1.1  christos       /* The first glink stub may either branch to the resolver ...  */
   2915      1.1  christos       insn ^= B;
   2916      1.1  christos       if ((insn & ~0x3fffffc) == 0)
   2917      1.1  christos 	resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
   2918      1.1  christos 
   2919      1.1  christos       /* ... or fall through a bunch of NOPs.  */
   2920      1.1  christos       else if ((insn ^ B ^ NOP) == 0)
   2921      1.1  christos 	for (i = 4;
   2922      1.1  christos 	     bfd_get_section_contents (abfd, glink, buf,
   2923      1.1  christos 				       glink_vma - glink->vma + i, 4);
   2924      1.1  christos 	     i += 4)
   2925      1.1  christos 	  if (bfd_get_32 (abfd, buf) != NOP)
   2926      1.1  christos 	    {
   2927      1.1  christos 	      resolv_vma = glink_vma + i;
   2928      1.1  christos 	      break;
   2929      1.1  christos 	    }
   2930      1.1  christos     }
   2931      1.1  christos 
   2932      1.1  christos   count = relplt->size / sizeof (Elf32_External_Rela);
   2933      1.1  christos   /* If the stubs are those for -shared/-pie then we might have
   2934      1.1  christos      multiple stubs for each plt entry.  If that is the case then
   2935      1.1  christos      there is no way to associate stubs with their plt entries short
   2936      1.1  christos      of figuring out the GOT pointer value used in the stub.  */
   2937      1.1  christos   if (!is_nonpic_glink_stub (abfd, glink,
   2938      1.1  christos 			     glink_vma - GLINK_ENTRY_SIZE - glink->vma))
   2939      1.1  christos     return 0;
   2940      1.1  christos 
   2941      1.1  christos   slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
   2942      1.1  christos   if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
   2943      1.1  christos     return -1;
   2944      1.1  christos 
   2945      1.1  christos   size = count * sizeof (asymbol);
   2946      1.1  christos   p = relplt->relocation;
   2947      1.1  christos   for (i = 0; i < count; i++, p++)
   2948      1.1  christos     {
   2949      1.1  christos       size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
   2950      1.1  christos       if (p->addend != 0)
   2951      1.1  christos 	size += sizeof ("+0x") - 1 + 8;
   2952      1.1  christos     }
   2953      1.1  christos 
   2954      1.1  christos   size += sizeof (asymbol) + sizeof ("__glink");
   2955      1.1  christos 
   2956      1.1  christos   if (resolv_vma)
   2957      1.1  christos     size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
   2958  1.3.2.1  pgoyette 
   2959      1.1  christos   s = *ret = bfd_malloc (size);
   2960  1.3.2.1  pgoyette   if (s == NULL)
   2961  1.3.2.1  pgoyette     return -1;
   2962      1.1  christos 
   2963      1.1  christos   stub_vma = glink_vma;
   2964      1.1  christos   names = (char *) (s + count + 1 + (resolv_vma != 0));
   2965      1.1  christos   p = relplt->relocation + count - 1;
   2966      1.1  christos   for (i = 0; i < count; i++)
   2967      1.1  christos     {
   2968      1.1  christos       size_t len;
   2969      1.1  christos 
   2970      1.1  christos       *s = **p->sym_ptr_ptr;
   2971      1.1  christos       /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set.  Since
   2972  1.3.2.1  pgoyette 	 we are defining a symbol, ensure one of them is set.  */
   2973  1.3.2.1  pgoyette       if ((s->flags & BSF_LOCAL) == 0)
   2974  1.3.2.1  pgoyette 	s->flags |= BSF_GLOBAL;
   2975      1.1  christos       s->flags |= BSF_SYNTHETIC;
   2976      1.1  christos       s->section = glink;
   2977      1.1  christos       stub_vma -= 16;
   2978      1.1  christos       if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
   2979      1.1  christos 	stub_vma -= 32;
   2980      1.1  christos       s->value = stub_vma - glink->vma;
   2981      1.1  christos       s->name = names;
   2982      1.1  christos       s->udata.p = NULL;
   2983      1.1  christos       len = strlen ((*p->sym_ptr_ptr)->name);
   2984      1.1  christos       memcpy (names, (*p->sym_ptr_ptr)->name, len);
   2985      1.1  christos       names += len;
   2986      1.1  christos       if (p->addend != 0)
   2987      1.1  christos 	{
   2988      1.1  christos 	  memcpy (names, "+0x", sizeof ("+0x") - 1);
   2989      1.1  christos 	  names += sizeof ("+0x") - 1;
   2990      1.1  christos 	  bfd_sprintf_vma (abfd, names, p->addend);
   2991  1.3.2.1  pgoyette 	  names += strlen (names);
   2992      1.1  christos 	}
   2993      1.1  christos       memcpy (names, "@plt", sizeof ("@plt"));
   2994      1.1  christos       names += sizeof ("@plt");
   2995      1.1  christos       ++s;
   2996      1.1  christos       --p;
   2997      1.1  christos     }
   2998      1.1  christos 
   2999      1.1  christos   /* Add a symbol at the start of the glink branch table.  */
   3000      1.1  christos   memset (s, 0, sizeof *s);
   3001      1.1  christos   s->the_bfd = abfd;
   3002      1.1  christos   s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3003      1.1  christos   s->section = glink;
   3004      1.1  christos   s->value = glink_vma - glink->vma;
   3005      1.1  christos   s->name = names;
   3006      1.1  christos   memcpy (names, "__glink", sizeof ("__glink"));
   3007      1.1  christos   names += sizeof ("__glink");
   3008      1.1  christos   s++;
   3009      1.1  christos   count++;
   3010      1.1  christos 
   3011      1.1  christos   if (resolv_vma)
   3012      1.1  christos     {
   3013      1.1  christos       /* Add a symbol for the glink PLT resolver.  */
   3014      1.1  christos       memset (s, 0, sizeof *s);
   3015      1.1  christos       s->the_bfd = abfd;
   3016      1.1  christos       s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3017      1.1  christos       s->section = glink;
   3018      1.1  christos       s->value = resolv_vma - glink->vma;
   3019      1.1  christos       s->name = names;
   3020      1.1  christos       memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
   3021      1.1  christos       names += sizeof ("__glink_PLTresolve");
   3022      1.1  christos       s++;
   3023      1.1  christos       count++;
   3024      1.1  christos     }
   3025      1.1  christos 
   3026      1.1  christos   return count;
   3027      1.1  christos }
   3028      1.1  christos 
   3029      1.1  christos /* The following functions are specific to the ELF linker, while
   3031      1.1  christos    functions above are used generally.  They appear in this file more
   3032      1.1  christos    or less in the order in which they are called.  eg.
   3033      1.1  christos    ppc_elf_check_relocs is called early in the link process,
   3034      1.1  christos    ppc_elf_finish_dynamic_sections is one of the last functions
   3035      1.1  christos    called.  */
   3036      1.1  christos 
   3037      1.1  christos /* Track PLT entries needed for a given symbol.  We might need more
   3038      1.1  christos    than one glink entry per symbol when generating a pic binary.  */
   3039      1.1  christos struct plt_entry
   3040      1.1  christos {
   3041      1.1  christos   struct plt_entry *next;
   3042      1.1  christos 
   3043      1.1  christos   /* -fPIC uses multiple GOT sections, one per file, called ".got2".
   3044      1.1  christos      This field stores the offset into .got2 used to initialise the
   3045      1.1  christos      GOT pointer reg.  It will always be at least 32768.  (Current
   3046      1.1  christos      gcc always uses an offset of 32768, but ld -r will pack .got2
   3047      1.1  christos      sections together resulting in larger offsets).  */
   3048      1.1  christos   bfd_vma addend;
   3049      1.1  christos 
   3050      1.1  christos   /* The .got2 section.  */
   3051      1.1  christos   asection *sec;
   3052      1.1  christos 
   3053      1.1  christos   /* PLT refcount or offset.  */
   3054      1.1  christos   union
   3055      1.1  christos     {
   3056      1.1  christos       bfd_signed_vma refcount;
   3057      1.1  christos       bfd_vma offset;
   3058      1.1  christos     } plt;
   3059      1.1  christos 
   3060      1.1  christos   /* .glink stub offset.  */
   3061      1.1  christos   bfd_vma glink_offset;
   3062      1.1  christos };
   3063      1.1  christos 
   3064      1.1  christos /* Of those relocs that might be copied as dynamic relocs, this function
   3065      1.1  christos    selects those that must be copied when linking a shared library,
   3066      1.1  christos    even when the symbol is local.  */
   3067      1.1  christos 
   3068      1.1  christos static int
   3069      1.1  christos must_be_dyn_reloc (struct bfd_link_info *info,
   3070      1.1  christos 		   enum elf_ppc_reloc_type r_type)
   3071      1.1  christos {
   3072      1.1  christos   switch (r_type)
   3073      1.1  christos     {
   3074      1.1  christos     default:
   3075      1.1  christos       return 1;
   3076      1.1  christos 
   3077      1.1  christos     case R_PPC_REL24:
   3078      1.1  christos     case R_PPC_REL14:
   3079      1.1  christos     case R_PPC_REL14_BRTAKEN:
   3080      1.1  christos     case R_PPC_REL14_BRNTAKEN:
   3081      1.1  christos     case R_PPC_REL32:
   3082      1.1  christos       return 0;
   3083      1.1  christos 
   3084      1.1  christos     case R_PPC_TPREL32:
   3085      1.1  christos     case R_PPC_TPREL16:
   3086      1.1  christos     case R_PPC_TPREL16_LO:
   3087      1.1  christos     case R_PPC_TPREL16_HI:
   3088      1.1  christos     case R_PPC_TPREL16_HA:
   3089      1.1  christos       return !info->executable;
   3090      1.1  christos     }
   3091      1.1  christos }
   3092      1.1  christos 
   3093      1.1  christos /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
   3094      1.1  christos    copying dynamic variables from a shared lib into an app's dynbss
   3095      1.1  christos    section, and instead use a dynamic relocation to point into the
   3096      1.1  christos    shared lib.  */
   3097      1.1  christos #define ELIMINATE_COPY_RELOCS 1
   3098      1.1  christos 
   3099      1.1  christos /* Used to track dynamic relocations for local symbols.  */
   3100      1.1  christos struct ppc_dyn_relocs
   3101      1.1  christos {
   3102      1.1  christos   struct ppc_dyn_relocs *next;
   3103      1.1  christos 
   3104      1.1  christos   /* The input section of the reloc.  */
   3105      1.1  christos   asection *sec;
   3106      1.1  christos 
   3107      1.1  christos   /* Total number of relocs copied for the input section.  */
   3108      1.1  christos   unsigned int count : 31;
   3109      1.1  christos 
   3110      1.1  christos   /* Whether this entry is for STT_GNU_IFUNC symbols.  */
   3111      1.1  christos   unsigned int ifunc : 1;
   3112      1.1  christos };
   3113      1.1  christos 
   3114      1.1  christos /* PPC ELF linker hash entry.  */
   3115      1.1  christos 
   3116      1.1  christos struct ppc_elf_link_hash_entry
   3117      1.1  christos {
   3118      1.1  christos   struct elf_link_hash_entry elf;
   3119      1.1  christos 
   3120      1.1  christos   /* If this symbol is used in the linker created sections, the processor
   3121      1.1  christos      specific backend uses this field to map the field into the offset
   3122      1.1  christos      from the beginning of the section.  */
   3123      1.1  christos   elf_linker_section_pointers_t *linker_section_pointer;
   3124      1.1  christos 
   3125      1.1  christos   /* Track dynamic relocs copied for this symbol.  */
   3126      1.1  christos   struct elf_dyn_relocs *dyn_relocs;
   3127      1.1  christos 
   3128      1.1  christos   /* Contexts in which symbol is used in the GOT (or TOC).
   3129      1.1  christos      TLS_GD .. TLS_TLS bits are or'd into the mask as the
   3130      1.1  christos      corresponding relocs are encountered during check_relocs.
   3131      1.1  christos      tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
   3132      1.1  christos      indicate the corresponding GOT entry type is not needed.  */
   3133      1.1  christos #define TLS_GD		 1	/* GD reloc. */
   3134      1.1  christos #define TLS_LD		 2	/* LD reloc. */
   3135      1.1  christos #define TLS_TPREL	 4	/* TPREL reloc, => IE. */
   3136      1.1  christos #define TLS_DTPREL	 8	/* DTPREL reloc, => LD. */
   3137      1.1  christos #define TLS_TLS		16	/* Any TLS reloc.  */
   3138  1.3.2.1  pgoyette #define TLS_TPRELGD	32	/* TPREL reloc resulting from GD->IE. */
   3139  1.3.2.1  pgoyette #define PLT_IFUNC	64	/* STT_GNU_IFUNC.  */
   3140  1.3.2.1  pgoyette   char tls_mask;
   3141  1.3.2.1  pgoyette 
   3142  1.3.2.1  pgoyette   /* Nonzero if we have seen a small data relocation referring to this
   3143      1.1  christos      symbol.  */
   3144      1.1  christos   unsigned char has_sda_refs : 1;
   3145      1.1  christos 
   3146      1.1  christos   /* Flag use of given relocations.  */
   3147      1.1  christos   unsigned char has_addr16_ha : 1;
   3148      1.1  christos   unsigned char has_addr16_lo : 1;
   3149      1.1  christos };
   3150      1.1  christos 
   3151      1.1  christos #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
   3152      1.1  christos 
   3153      1.3  christos /* PPC ELF linker hash table.  */
   3154      1.3  christos 
   3155      1.3  christos struct ppc_elf_link_hash_table
   3156      1.1  christos {
   3157      1.1  christos   struct elf_link_hash_table elf;
   3158      1.1  christos 
   3159      1.1  christos   /* Various options passed from the linker.  */
   3160      1.1  christos   struct ppc_elf_params *params;
   3161      1.1  christos 
   3162      1.1  christos   /* Short-cuts to get to dynamic linker sections.  */
   3163      1.1  christos   asection *got;
   3164      1.1  christos   asection *relgot;
   3165      1.1  christos   asection *glink;
   3166      1.1  christos   asection *plt;
   3167      1.1  christos   asection *relplt;
   3168      1.1  christos   asection *iplt;
   3169      1.1  christos   asection *reliplt;
   3170      1.1  christos   asection *dynbss;
   3171      1.1  christos   asection *relbss;
   3172      1.1  christos   asection *dynsbss;
   3173      1.1  christos   asection *relsbss;
   3174      1.1  christos   elf_linker_section_t sdata[2];
   3175      1.1  christos   asection *sbss;
   3176      1.1  christos   asection *glink_eh_frame;
   3177      1.1  christos 
   3178      1.1  christos   /* The (unloaded but important) .rela.plt.unloaded on VxWorks.  */
   3179      1.1  christos   asection *srelplt2;
   3180      1.1  christos 
   3181      1.1  christos   /* The .got.plt section (VxWorks only)*/
   3182      1.1  christos   asection *sgotplt;
   3183      1.1  christos 
   3184      1.1  christos   /* Shortcut to __tls_get_addr.  */
   3185      1.1  christos   struct elf_link_hash_entry *tls_get_addr;
   3186      1.1  christos 
   3187      1.1  christos   /* The bfd that forced an old-style PLT.  */
   3188      1.1  christos   bfd *old_bfd;
   3189      1.1  christos 
   3190      1.1  christos   /* TLS local dynamic got entry handling.  */
   3191      1.1  christos   union {
   3192      1.1  christos     bfd_signed_vma refcount;
   3193      1.1  christos     bfd_vma offset;
   3194      1.1  christos   } tlsld_got;
   3195      1.1  christos 
   3196      1.1  christos   /* Offset of branch table to PltResolve function in glink.  */
   3197      1.1  christos   bfd_vma glink_pltresolve;
   3198      1.1  christos 
   3199      1.1  christos   /* Size of reserved GOT entries.  */
   3200      1.1  christos   unsigned int got_header_size;
   3201      1.1  christos   /* Non-zero if allocating the header left a gap.  */
   3202      1.1  christos   unsigned int got_gap;
   3203      1.1  christos 
   3204      1.1  christos   /* The type of PLT we have chosen to use.  */
   3205      1.1  christos   enum ppc_elf_plt_type plt_type;
   3206      1.1  christos 
   3207      1.1  christos   /* True if the target system is VxWorks.  */
   3208      1.1  christos   unsigned int is_vxworks:1;
   3209      1.1  christos 
   3210      1.1  christos   /* The size of PLT entries.  */
   3211      1.1  christos   int plt_entry_size;
   3212      1.1  christos   /* The distance between adjacent PLT slots.  */
   3213      1.1  christos   int plt_slot_size;
   3214      1.1  christos   /* The size of the first PLT entry.  */
   3215      1.1  christos   int plt_initial_entry_size;
   3216      1.1  christos 
   3217      1.1  christos   /* Small local sym cache.  */
   3218      1.1  christos   struct sym_cache sym_cache;
   3219      1.1  christos };
   3220      1.1  christos 
   3221      1.1  christos /* Rename some of the generic section flags to better document how they
   3222      1.1  christos    are used for ppc32.  The flags are only valid for ppc32 elf objects.  */
   3223      1.1  christos 
   3224      1.1  christos /* Nonzero if this section has TLS related relocations.  */
   3225      1.1  christos #define has_tls_reloc sec_flg0
   3226      1.1  christos 
   3227      1.1  christos /* Nonzero if this section has a call to __tls_get_addr.  */
   3228      1.1  christos #define has_tls_get_addr_call sec_flg1
   3229      1.1  christos 
   3230      1.1  christos /* Get the PPC ELF linker hash table from a link_info structure.  */
   3231      1.1  christos 
   3232      1.1  christos #define ppc_elf_hash_table(p) \
   3233      1.1  christos   (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
   3234      1.1  christos   == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
   3235      1.1  christos 
   3236      1.1  christos /* Create an entry in a PPC ELF linker hash table.  */
   3237      1.1  christos 
   3238      1.1  christos static struct bfd_hash_entry *
   3239      1.1  christos ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
   3240      1.1  christos 			   struct bfd_hash_table *table,
   3241      1.1  christos 			   const char *string)
   3242      1.1  christos {
   3243      1.1  christos   /* Allocate the structure if it has not already been allocated by a
   3244      1.1  christos      subclass.  */
   3245      1.1  christos   if (entry == NULL)
   3246      1.1  christos     {
   3247      1.1  christos       entry = bfd_hash_allocate (table,
   3248      1.1  christos 				 sizeof (struct ppc_elf_link_hash_entry));
   3249      1.1  christos       if (entry == NULL)
   3250      1.1  christos 	return entry;
   3251      1.1  christos     }
   3252      1.1  christos 
   3253      1.1  christos   /* Call the allocation method of the superclass.  */
   3254      1.1  christos   entry = _bfd_elf_link_hash_newfunc (entry, table, string);
   3255      1.1  christos   if (entry != NULL)
   3256      1.1  christos     {
   3257      1.1  christos       ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
   3258      1.1  christos       ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
   3259      1.1  christos       ppc_elf_hash_entry (entry)->tls_mask = 0;
   3260      1.1  christos       ppc_elf_hash_entry (entry)->has_sda_refs = 0;
   3261      1.1  christos     }
   3262      1.1  christos 
   3263      1.1  christos   return entry;
   3264      1.1  christos }
   3265      1.1  christos 
   3266  1.3.2.1  pgoyette /* Create a PPC ELF linker hash table.  */
   3267      1.1  christos 
   3268      1.1  christos static struct bfd_link_hash_table *
   3269      1.1  christos ppc_elf_link_hash_table_create (bfd *abfd)
   3270      1.1  christos {
   3271      1.1  christos   struct ppc_elf_link_hash_table *ret;
   3272      1.1  christos   static struct ppc_elf_params default_params = { PLT_OLD, 0, 1, 0, 0, 12, 0 };
   3273      1.1  christos 
   3274      1.1  christos   ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
   3275      1.1  christos   if (ret == NULL)
   3276      1.1  christos     return NULL;
   3277      1.1  christos 
   3278      1.1  christos   if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
   3279      1.1  christos 				      ppc_elf_link_hash_newfunc,
   3280      1.1  christos 				      sizeof (struct ppc_elf_link_hash_entry),
   3281      1.1  christos 				      PPC32_ELF_DATA))
   3282      1.1  christos     {
   3283      1.1  christos       free (ret);
   3284      1.1  christos       return NULL;
   3285      1.1  christos     }
   3286      1.3  christos 
   3287      1.3  christos   ret->elf.init_plt_refcount.refcount = 0;
   3288      1.1  christos   ret->elf.init_plt_refcount.glist = NULL;
   3289      1.1  christos   ret->elf.init_plt_offset.offset = 0;
   3290      1.1  christos   ret->elf.init_plt_offset.glist = NULL;
   3291      1.1  christos 
   3292      1.1  christos   ret->params = &default_params;
   3293      1.1  christos 
   3294      1.1  christos   ret->sdata[0].name = ".sdata";
   3295      1.1  christos   ret->sdata[0].sym_name = "_SDA_BASE_";
   3296      1.1  christos   ret->sdata[0].bss_name = ".sbss";
   3297      1.1  christos 
   3298      1.1  christos   ret->sdata[1].name = ".sdata2";
   3299      1.1  christos   ret->sdata[1].sym_name = "_SDA2_BASE_";
   3300      1.1  christos   ret->sdata[1].bss_name = ".sbss2";
   3301      1.1  christos 
   3302      1.1  christos   ret->plt_entry_size = 12;
   3303      1.3  christos   ret->plt_slot_size = 8;
   3304      1.3  christos   ret->plt_initial_entry_size = 72;
   3305      1.3  christos 
   3306      1.3  christos   return &ret->elf.root;
   3307      1.3  christos }
   3308      1.3  christos 
   3309      1.3  christos /* Hook linker params into hash table.  */
   3310      1.3  christos 
   3311      1.3  christos void
   3312      1.3  christos ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
   3313      1.3  christos {
   3314      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3315      1.1  christos 
   3316      1.1  christos   if (htab)
   3317      1.1  christos     htab->params = params;
   3318      1.1  christos }
   3319      1.1  christos 
   3320      1.1  christos /* Create .got and the related sections.  */
   3321      1.1  christos 
   3322      1.1  christos static bfd_boolean
   3323      1.1  christos ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
   3324      1.1  christos {
   3325      1.1  christos   struct ppc_elf_link_hash_table *htab;
   3326      1.1  christos   asection *s;
   3327      1.1  christos   flagword flags;
   3328      1.1  christos 
   3329      1.1  christos   if (!_bfd_elf_create_got_section (abfd, info))
   3330      1.1  christos     return FALSE;
   3331      1.1  christos 
   3332      1.1  christos   htab = ppc_elf_hash_table (info);
   3333      1.1  christos   htab->got = s = bfd_get_linker_section (abfd, ".got");
   3334      1.1  christos   if (s == NULL)
   3335      1.1  christos     abort ();
   3336      1.1  christos 
   3337      1.1  christos   if (htab->is_vxworks)
   3338      1.1  christos     {
   3339      1.1  christos       htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
   3340      1.1  christos       if (!htab->sgotplt)
   3341      1.1  christos 	abort ();
   3342      1.1  christos     }
   3343      1.1  christos   else
   3344      1.1  christos     {
   3345      1.1  christos       /* The powerpc .got has a blrl instruction in it.  Mark it
   3346      1.1  christos 	 executable.  */
   3347      1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
   3348      1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3349      1.1  christos       if (!bfd_set_section_flags (abfd, s, flags))
   3350      1.1  christos 	return FALSE;
   3351      1.1  christos     }
   3352      1.1  christos 
   3353      1.1  christos   htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
   3354      1.3  christos   if (!htab->relgot)
   3355      1.3  christos     abort ();
   3356      1.3  christos 
   3357      1.3  christos   return TRUE;
   3358      1.3  christos }
   3359      1.3  christos 
   3360      1.3  christos /* Create a special linker section, used for R_PPC_EMB_SDAI16 and
   3361      1.3  christos    R_PPC_EMB_SDA2I16 pointers.  These sections become part of .sdata
   3362      1.3  christos    and .sdata2.  Create _SDA_BASE_ and _SDA2_BASE too.  */
   3363      1.3  christos 
   3364      1.3  christos static bfd_boolean
   3365      1.3  christos ppc_elf_create_linker_section (bfd *abfd,
   3366      1.3  christos 			       struct bfd_link_info *info,
   3367      1.3  christos 			       flagword flags,
   3368      1.3  christos 			       elf_linker_section_t *lsect)
   3369      1.3  christos {
   3370      1.3  christos   asection *s;
   3371      1.3  christos 
   3372      1.3  christos   flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
   3373      1.3  christos 	    | SEC_LINKER_CREATED);
   3374      1.3  christos 
   3375      1.3  christos   s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
   3376      1.3  christos   if (s == NULL)
   3377      1.3  christos     return FALSE;
   3378      1.3  christos   lsect->section = s;
   3379      1.3  christos 
   3380      1.3  christos   /* Define the sym on the first section of this name.  */
   3381      1.3  christos   s = bfd_get_section_by_name (abfd, lsect->name);
   3382      1.3  christos 
   3383      1.3  christos   lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
   3384      1.1  christos   if (lsect->sym == NULL)
   3385      1.1  christos     return FALSE;
   3386      1.1  christos   lsect->sym->root.u.def.value = 0x8000;
   3387      1.1  christos   return TRUE;
   3388      1.1  christos }
   3389      1.1  christos 
   3390      1.1  christos static bfd_boolean
   3391      1.1  christos ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
   3392      1.1  christos {
   3393      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3394      1.1  christos   asection *s;
   3395      1.1  christos   flagword flags;
   3396      1.3  christos 
   3397      1.3  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
   3398      1.1  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3399      1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
   3400      1.1  christos   htab->glink = s;
   3401      1.1  christos   if (s == NULL
   3402      1.1  christos       || !bfd_set_section_alignment (abfd, s,
   3403      1.1  christos 				     htab->params->ppc476_workaround ? 6 : 4))
   3404      1.1  christos     return FALSE;
   3405      1.1  christos 
   3406      1.1  christos   if (!info->no_ld_generated_unwind_info)
   3407      1.1  christos     {
   3408      1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3409      1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3410      1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
   3411      1.1  christos       htab->glink_eh_frame = s;
   3412      1.1  christos       if (s == NULL
   3413      1.1  christos 	  || !bfd_set_section_alignment (abfd, s, 2))
   3414      1.1  christos 	return FALSE;
   3415      1.1  christos     }
   3416      1.1  christos 
   3417      1.1  christos   flags = SEC_ALLOC | SEC_LINKER_CREATED;
   3418      1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
   3419      1.1  christos   htab->iplt = s;
   3420      1.1  christos   if (s == NULL
   3421      1.1  christos       || !bfd_set_section_alignment (abfd, s, 4))
   3422      1.1  christos     return FALSE;
   3423      1.1  christos 
   3424      1.1  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3425      1.3  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3426      1.3  christos   s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
   3427      1.3  christos   htab->reliplt = s;
   3428      1.3  christos   if (s == NULL
   3429      1.3  christos       || ! bfd_set_section_alignment (abfd, s, 2))
   3430      1.3  christos     return FALSE;
   3431      1.3  christos 
   3432      1.3  christos   if (!ppc_elf_create_linker_section (abfd, info, 0,
   3433      1.3  christos 				      &htab->sdata[0]))
   3434      1.1  christos     return FALSE;
   3435      1.1  christos 
   3436      1.1  christos   if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
   3437      1.1  christos 				      &htab->sdata[1]))
   3438      1.1  christos     return FALSE;
   3439      1.1  christos 
   3440      1.1  christos   return TRUE;
   3441      1.1  christos }
   3442      1.1  christos 
   3443      1.1  christos /* We have to create .dynsbss and .rela.sbss here so that they get mapped
   3444      1.1  christos    to output sections (just like _bfd_elf_create_dynamic_sections has
   3445      1.1  christos    to create .dynbss and .rela.bss).  */
   3446      1.1  christos 
   3447      1.1  christos static bfd_boolean
   3448      1.1  christos ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
   3449      1.1  christos {
   3450      1.1  christos   struct ppc_elf_link_hash_table *htab;
   3451      1.1  christos   asection *s;
   3452      1.1  christos   flagword flags;
   3453      1.1  christos 
   3454      1.1  christos   htab = ppc_elf_hash_table (info);
   3455      1.1  christos 
   3456      1.1  christos   if (htab->got == NULL
   3457      1.1  christos       && !ppc_elf_create_got (abfd, info))
   3458      1.1  christos     return FALSE;
   3459      1.1  christos 
   3460      1.1  christos   if (!_bfd_elf_create_dynamic_sections (abfd, info))
   3461      1.1  christos     return FALSE;
   3462      1.1  christos 
   3463      1.1  christos   if (htab->glink == NULL
   3464      1.1  christos       && !ppc_elf_create_glink (abfd, info))
   3465      1.1  christos     return FALSE;
   3466      1.1  christos 
   3467      1.1  christos   htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
   3468      1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
   3469      1.1  christos 					  SEC_ALLOC | SEC_LINKER_CREATED);
   3470      1.1  christos   htab->dynsbss = s;
   3471      1.1  christos   if (s == NULL)
   3472      1.1  christos     return FALSE;
   3473      1.1  christos 
   3474      1.1  christos   if (! info->shared)
   3475      1.1  christos     {
   3476      1.1  christos       htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
   3477      1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3478      1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3479      1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
   3480      1.1  christos       htab->relsbss = s;
   3481      1.1  christos       if (s == NULL
   3482      1.1  christos 	  || ! bfd_set_section_alignment (abfd, s, 2))
   3483      1.1  christos 	return FALSE;
   3484      1.1  christos     }
   3485      1.1  christos 
   3486      1.1  christos   if (htab->is_vxworks
   3487      1.1  christos       && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
   3488      1.1  christos     return FALSE;
   3489      1.1  christos 
   3490      1.1  christos   htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
   3491      1.1  christos   htab->plt = s = bfd_get_linker_section (abfd, ".plt");
   3492      1.1  christos   if (s == NULL)
   3493      1.1  christos     abort ();
   3494      1.1  christos 
   3495      1.1  christos   flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
   3496      1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   3497      1.1  christos     /* The VxWorks PLT is a loaded section with contents.  */
   3498      1.1  christos     flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
   3499      1.1  christos   return bfd_set_section_flags (abfd, s, flags);
   3500      1.1  christos }
   3501      1.1  christos 
   3502      1.1  christos /* Copy the extra info we tack onto an elf_link_hash_entry.  */
   3503      1.1  christos 
   3504      1.1  christos static void
   3505      1.1  christos ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
   3506      1.1  christos 			      struct elf_link_hash_entry *dir,
   3507      1.1  christos 			      struct elf_link_hash_entry *ind)
   3508      1.1  christos {
   3509      1.1  christos   struct ppc_elf_link_hash_entry *edir, *eind;
   3510      1.1  christos 
   3511      1.1  christos   edir = (struct ppc_elf_link_hash_entry *) dir;
   3512      1.1  christos   eind = (struct ppc_elf_link_hash_entry *) ind;
   3513      1.1  christos 
   3514      1.1  christos   edir->tls_mask |= eind->tls_mask;
   3515      1.1  christos   edir->has_sda_refs |= eind->has_sda_refs;
   3516      1.1  christos 
   3517      1.1  christos   /* If called to transfer flags for a weakdef during processing
   3518      1.1  christos      of elf_adjust_dynamic_symbol, don't copy non_got_ref.
   3519      1.1  christos      We clear it ourselves for ELIMINATE_COPY_RELOCS.  */
   3520      1.1  christos   if (!(ELIMINATE_COPY_RELOCS
   3521      1.1  christos 	&& eind->elf.root.type != bfd_link_hash_indirect
   3522      1.1  christos 	&& edir->elf.dynamic_adjusted))
   3523      1.1  christos     edir->elf.non_got_ref |= eind->elf.non_got_ref;
   3524      1.1  christos 
   3525      1.1  christos   edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
   3526      1.1  christos   edir->elf.ref_regular |= eind->elf.ref_regular;
   3527      1.1  christos   edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
   3528      1.1  christos   edir->elf.needs_plt |= eind->elf.needs_plt;
   3529      1.1  christos   edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
   3530      1.1  christos 
   3531      1.1  christos   if (eind->dyn_relocs != NULL)
   3532      1.1  christos     {
   3533      1.1  christos       if (edir->dyn_relocs != NULL)
   3534      1.1  christos 	{
   3535      1.1  christos 	  struct elf_dyn_relocs **pp;
   3536      1.1  christos 	  struct elf_dyn_relocs *p;
   3537      1.1  christos 
   3538      1.1  christos 	  /* Add reloc counts against the indirect sym to the direct sym
   3539      1.1  christos 	     list.  Merge any entries against the same section.  */
   3540      1.1  christos 	  for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
   3541      1.1  christos 	    {
   3542      1.1  christos 	      struct elf_dyn_relocs *q;
   3543      1.1  christos 
   3544      1.1  christos 	      for (q = edir->dyn_relocs; q != NULL; q = q->next)
   3545      1.1  christos 		if (q->sec == p->sec)
   3546      1.1  christos 		  {
   3547      1.1  christos 		    q->pc_count += p->pc_count;
   3548      1.1  christos 		    q->count += p->count;
   3549      1.1  christos 		    *pp = p->next;
   3550      1.1  christos 		    break;
   3551      1.1  christos 		  }
   3552      1.1  christos 	      if (q == NULL)
   3553      1.1  christos 		pp = &p->next;
   3554      1.1  christos 	    }
   3555      1.1  christos 	  *pp = edir->dyn_relocs;
   3556      1.1  christos 	}
   3557      1.1  christos 
   3558      1.1  christos       edir->dyn_relocs = eind->dyn_relocs;
   3559      1.1  christos       eind->dyn_relocs = NULL;
   3560      1.1  christos     }
   3561      1.1  christos 
   3562      1.1  christos   /* If we were called to copy over info for a weak sym, that's all.
   3563      1.1  christos      You might think dyn_relocs need not be copied over;  After all,
   3564      1.1  christos      both syms will be dynamic or both non-dynamic so we're just
   3565      1.1  christos      moving reloc accounting around.  However, ELIMINATE_COPY_RELOCS
   3566      1.1  christos      code in ppc_elf_adjust_dynamic_symbol needs to check for
   3567      1.1  christos      dyn_relocs in read-only sections, and it does so on what is the
   3568      1.1  christos      DIR sym here.  */
   3569      1.1  christos   if (eind->elf.root.type != bfd_link_hash_indirect)
   3570      1.1  christos     return;
   3571      1.1  christos 
   3572      1.1  christos   /* Copy over the GOT refcount entries that we may have already seen to
   3573      1.1  christos      the symbol which just became indirect.  */
   3574      1.1  christos   edir->elf.got.refcount += eind->elf.got.refcount;
   3575      1.1  christos   eind->elf.got.refcount = 0;
   3576      1.1  christos 
   3577      1.1  christos   /* And plt entries.  */
   3578      1.1  christos   if (eind->elf.plt.plist != NULL)
   3579      1.1  christos     {
   3580      1.1  christos       if (edir->elf.plt.plist != NULL)
   3581      1.1  christos 	{
   3582      1.1  christos 	  struct plt_entry **entp;
   3583      1.1  christos 	  struct plt_entry *ent;
   3584      1.1  christos 
   3585      1.1  christos 	  for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
   3586      1.1  christos 	    {
   3587      1.1  christos 	      struct plt_entry *dent;
   3588      1.1  christos 
   3589      1.1  christos 	      for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
   3590      1.1  christos 		if (dent->sec == ent->sec && dent->addend == ent->addend)
   3591      1.1  christos 		  {
   3592      1.1  christos 		    dent->plt.refcount += ent->plt.refcount;
   3593      1.1  christos 		    *entp = ent->next;
   3594      1.1  christos 		    break;
   3595      1.1  christos 		  }
   3596      1.1  christos 	      if (dent == NULL)
   3597      1.1  christos 		entp = &ent->next;
   3598      1.1  christos 	    }
   3599      1.1  christos 	  *entp = edir->elf.plt.plist;
   3600      1.1  christos 	}
   3601      1.1  christos 
   3602      1.1  christos       edir->elf.plt.plist = eind->elf.plt.plist;
   3603      1.1  christos       eind->elf.plt.plist = NULL;
   3604      1.1  christos     }
   3605      1.1  christos 
   3606      1.1  christos   if (eind->elf.dynindx != -1)
   3607      1.1  christos     {
   3608      1.1  christos       if (edir->elf.dynindx != -1)
   3609      1.1  christos 	_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   3610      1.1  christos 				edir->elf.dynstr_index);
   3611      1.1  christos       edir->elf.dynindx = eind->elf.dynindx;
   3612      1.1  christos       edir->elf.dynstr_index = eind->elf.dynstr_index;
   3613      1.1  christos       eind->elf.dynindx = -1;
   3614      1.1  christos       eind->elf.dynstr_index = 0;
   3615      1.1  christos     }
   3616      1.1  christos }
   3617      1.1  christos 
   3618      1.1  christos /* Hook called by the linker routine which adds symbols from an object
   3619      1.1  christos    file.  We use it to put .comm items in .sbss, and not .bss.  */
   3620      1.1  christos 
   3621      1.1  christos static bfd_boolean
   3622      1.1  christos ppc_elf_add_symbol_hook (bfd *abfd,
   3623      1.1  christos 			 struct bfd_link_info *info,
   3624      1.1  christos 			 Elf_Internal_Sym *sym,
   3625      1.1  christos 			 const char **namep ATTRIBUTE_UNUSED,
   3626      1.1  christos 			 flagword *flagsp ATTRIBUTE_UNUSED,
   3627      1.1  christos 			 asection **secp,
   3628      1.1  christos 			 bfd_vma *valp)
   3629      1.1  christos {
   3630      1.1  christos   if (sym->st_shndx == SHN_COMMON
   3631      1.1  christos       && !info->relocatable
   3632      1.1  christos       && is_ppc_elf (info->output_bfd)
   3633      1.1  christos       && sym->st_size <= elf_gp_size (abfd))
   3634      1.1  christos     {
   3635      1.1  christos       /* Common symbols less than or equal to -G nn bytes are automatically
   3636      1.1  christos 	 put into .sbss.  */
   3637      1.1  christos       struct ppc_elf_link_hash_table *htab;
   3638      1.1  christos 
   3639      1.1  christos       htab = ppc_elf_hash_table (info);
   3640      1.1  christos       if (htab->sbss == NULL)
   3641      1.1  christos 	{
   3642      1.1  christos 	  flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
   3643      1.1  christos 
   3644      1.1  christos 	  if (!htab->elf.dynobj)
   3645      1.1  christos 	    htab->elf.dynobj = abfd;
   3646      1.1  christos 
   3647      1.1  christos 	  htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
   3648      1.1  christos 							   ".sbss",
   3649      1.1  christos 							   flags);
   3650      1.1  christos 	  if (htab->sbss == NULL)
   3651      1.1  christos 	    return FALSE;
   3652      1.3  christos 	}
   3653      1.3  christos 
   3654      1.3  christos       *secp = htab->sbss;
   3655      1.3  christos       *valp = sym->st_size;
   3656      1.1  christos     }
   3657      1.1  christos 
   3658      1.1  christos   if ((ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
   3659      1.1  christos        || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE)
   3660      1.1  christos       && (abfd->flags & DYNAMIC) == 0
   3661      1.1  christos       && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
   3662      1.1  christos     elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
   3663      1.1  christos 
   3664      1.1  christos   return TRUE;
   3665      1.1  christos }
   3666      1.1  christos 
   3667      1.1  christos /* Find a linker generated pointer with a given addend and type.  */
   3669      1.1  christos 
   3670      1.1  christos static elf_linker_section_pointers_t *
   3671      1.1  christos elf_find_pointer_linker_section
   3672      1.1  christos   (elf_linker_section_pointers_t *linker_pointers,
   3673      1.1  christos    bfd_vma addend,
   3674      1.1  christos    elf_linker_section_t *lsect)
   3675      1.1  christos {
   3676      1.1  christos   for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
   3677      1.1  christos     if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
   3678      1.1  christos       return linker_pointers;
   3679      1.3  christos 
   3680      1.3  christos   return NULL;
   3681      1.3  christos }
   3682      1.3  christos 
   3683      1.1  christos /* Allocate a pointer to live in a linker created section.  */
   3684      1.1  christos 
   3685      1.1  christos static bfd_boolean
   3686      1.1  christos elf_allocate_pointer_linker_section (bfd *abfd,
   3687      1.1  christos 				     elf_linker_section_t *lsect,
   3688      1.1  christos 				     struct elf_link_hash_entry *h,
   3689      1.1  christos 				     const Elf_Internal_Rela *rel)
   3690      1.1  christos {
   3691      1.1  christos   elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
   3692      1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   3693      1.1  christos   unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   3694      1.1  christos   bfd_size_type amt;
   3695      1.1  christos 
   3696      1.1  christos   BFD_ASSERT (lsect != NULL);
   3697      1.1  christos 
   3698      1.1  christos   /* Is this a global symbol?  */
   3699      1.1  christos   if (h != NULL)
   3700      1.1  christos     {
   3701      1.1  christos       struct ppc_elf_link_hash_entry *eh;
   3702      1.1  christos 
   3703      1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3704      1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   3705      1.1  christos       if (elf_find_pointer_linker_section (eh->linker_section_pointer,
   3706      1.1  christos 					   rel->r_addend,
   3707      1.1  christos 					   lsect))
   3708      1.1  christos 	return TRUE;
   3709      1.1  christos 
   3710      1.1  christos       ptr_linker_section_ptr = &eh->linker_section_pointer;
   3711      1.1  christos     }
   3712      1.1  christos   else
   3713      1.1  christos     {
   3714      1.1  christos       BFD_ASSERT (is_ppc_elf (abfd));
   3715      1.1  christos 
   3716      1.1  christos       /* Allocation of a pointer to a local symbol.  */
   3717      1.1  christos       elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
   3718      1.1  christos 
   3719      1.1  christos       /* Allocate a table to hold the local symbols if first time.  */
   3720      1.1  christos       if (!ptr)
   3721      1.1  christos 	{
   3722      1.1  christos 	  unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
   3723      1.1  christos 
   3724      1.1  christos 	  amt = num_symbols;
   3725      1.1  christos 	  amt *= sizeof (elf_linker_section_pointers_t *);
   3726      1.1  christos 	  ptr = bfd_zalloc (abfd, amt);
   3727      1.1  christos 
   3728      1.1  christos 	  if (!ptr)
   3729      1.1  christos 	    return FALSE;
   3730      1.1  christos 
   3731      1.1  christos 	  elf_local_ptr_offsets (abfd) = ptr;
   3732      1.1  christos 	}
   3733      1.1  christos 
   3734      1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3735      1.1  christos       if (elf_find_pointer_linker_section (ptr[r_symndx],
   3736      1.1  christos 					   rel->r_addend,
   3737      1.1  christos 					   lsect))
   3738      1.1  christos 	return TRUE;
   3739      1.1  christos 
   3740      1.1  christos       ptr_linker_section_ptr = &ptr[r_symndx];
   3741      1.1  christos     }
   3742      1.1  christos 
   3743      1.1  christos   /* Allocate space for a pointer in the linker section, and allocate
   3744      1.1  christos      a new pointer record from internal memory.  */
   3745      1.1  christos   BFD_ASSERT (ptr_linker_section_ptr != NULL);
   3746      1.1  christos   amt = sizeof (elf_linker_section_pointers_t);
   3747      1.1  christos   linker_section_ptr = bfd_alloc (abfd, amt);
   3748      1.1  christos 
   3749      1.1  christos   if (!linker_section_ptr)
   3750      1.3  christos     return FALSE;
   3751      1.3  christos 
   3752      1.1  christos   linker_section_ptr->next = *ptr_linker_section_ptr;
   3753      1.1  christos   linker_section_ptr->addend = rel->r_addend;
   3754      1.1  christos   linker_section_ptr->lsect = lsect;
   3755      1.1  christos   *ptr_linker_section_ptr = linker_section_ptr;
   3756      1.1  christos 
   3757      1.1  christos   if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
   3758      1.1  christos     return FALSE;
   3759      1.1  christos   linker_section_ptr->offset = lsect->section->size;
   3760      1.1  christos   lsect->section->size += 4;
   3761      1.1  christos 
   3762      1.1  christos #ifdef DEBUG
   3763      1.1  christos   fprintf (stderr,
   3764      1.1  christos 	   "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
   3765      1.1  christos 	   lsect->name, (long) linker_section_ptr->offset,
   3766      1.1  christos 	   (long) lsect->section->size);
   3767      1.1  christos #endif
   3768      1.1  christos 
   3769      1.1  christos   return TRUE;
   3770      1.1  christos }
   3771      1.1  christos 
   3772      1.1  christos static struct plt_entry **
   3773      1.1  christos update_local_sym_info (bfd *abfd,
   3774      1.1  christos 		       Elf_Internal_Shdr *symtab_hdr,
   3775      1.1  christos 		       unsigned long r_symndx,
   3776      1.1  christos 		       int tls_type)
   3777      1.1  christos {
   3778      1.1  christos   bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
   3779      1.1  christos   struct plt_entry **local_plt;
   3780      1.1  christos   char *local_got_tls_masks;
   3781      1.1  christos 
   3782      1.1  christos   if (local_got_refcounts == NULL)
   3783      1.1  christos     {
   3784      1.1  christos       bfd_size_type size = symtab_hdr->sh_info;
   3785      1.1  christos 
   3786      1.1  christos       size *= (sizeof (*local_got_refcounts)
   3787      1.1  christos 	       + sizeof (*local_plt)
   3788      1.1  christos 	       + sizeof (*local_got_tls_masks));
   3789      1.1  christos       local_got_refcounts = bfd_zalloc (abfd, size);
   3790      1.1  christos       if (local_got_refcounts == NULL)
   3791      1.1  christos 	return NULL;
   3792      1.1  christos       elf_local_got_refcounts (abfd) = local_got_refcounts;
   3793      1.1  christos     }
   3794      1.1  christos 
   3795      1.1  christos   local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
   3796      1.1  christos   local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
   3797      1.1  christos   local_got_tls_masks[r_symndx] |= tls_type;
   3798      1.1  christos   if (tls_type != PLT_IFUNC)
   3799      1.1  christos     local_got_refcounts[r_symndx] += 1;
   3800      1.1  christos   return local_plt + r_symndx;
   3801      1.1  christos }
   3802      1.1  christos 
   3803      1.1  christos static bfd_boolean
   3804      1.1  christos update_plt_info (bfd *abfd, struct plt_entry **plist,
   3805      1.1  christos 		 asection *sec, bfd_vma addend)
   3806      1.1  christos {
   3807      1.1  christos   struct plt_entry *ent;
   3808      1.1  christos 
   3809      1.1  christos   if (addend < 32768)
   3810      1.1  christos     sec = NULL;
   3811      1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3812      1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3813      1.1  christos       break;
   3814      1.1  christos   if (ent == NULL)
   3815      1.1  christos     {
   3816      1.1  christos       bfd_size_type amt = sizeof (*ent);
   3817      1.1  christos       ent = bfd_alloc (abfd, amt);
   3818      1.1  christos       if (ent == NULL)
   3819      1.1  christos 	return FALSE;
   3820      1.1  christos       ent->next = *plist;
   3821      1.1  christos       ent->sec = sec;
   3822      1.1  christos       ent->addend = addend;
   3823      1.1  christos       ent->plt.refcount = 0;
   3824      1.1  christos       *plist = ent;
   3825      1.1  christos     }
   3826      1.1  christos   ent->plt.refcount += 1;
   3827      1.1  christos   return TRUE;
   3828      1.1  christos }
   3829      1.1  christos 
   3830      1.1  christos static struct plt_entry *
   3831      1.1  christos find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
   3832      1.1  christos {
   3833      1.1  christos   struct plt_entry *ent;
   3834      1.1  christos 
   3835      1.1  christos   if (addend < 32768)
   3836      1.1  christos     sec = NULL;
   3837      1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3838      1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3839      1.1  christos       break;
   3840      1.1  christos   return ent;
   3841      1.1  christos }
   3842      1.1  christos 
   3843      1.1  christos static bfd_boolean
   3844      1.1  christos is_branch_reloc (enum elf_ppc_reloc_type r_type)
   3845      1.1  christos {
   3846      1.1  christos   return (r_type == R_PPC_PLTREL24
   3847      1.1  christos 	  || r_type == R_PPC_LOCAL24PC
   3848      1.1  christos 	  || r_type == R_PPC_REL24
   3849      1.1  christos 	  || r_type == R_PPC_REL14
   3850      1.1  christos 	  || r_type == R_PPC_REL14_BRTAKEN
   3851      1.1  christos 	  || r_type == R_PPC_REL14_BRNTAKEN
   3852      1.1  christos 	  || r_type == R_PPC_ADDR24
   3853      1.1  christos 	  || r_type == R_PPC_ADDR14
   3854      1.1  christos 	  || r_type == R_PPC_ADDR14_BRTAKEN
   3855      1.1  christos 	  || r_type == R_PPC_ADDR14_BRNTAKEN);
   3856      1.1  christos }
   3857      1.1  christos 
   3858      1.1  christos static void
   3859      1.1  christos bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
   3860      1.1  christos {
   3861      1.1  christos   (*_bfd_error_handler)
   3862      1.1  christos     (_("%B: relocation %s cannot be used when making a shared object"),
   3863      1.1  christos      abfd,
   3864      1.1  christos      ppc_elf_howto_table[r_type]->name);
   3865      1.1  christos   bfd_set_error (bfd_error_bad_value);
   3866      1.1  christos }
   3867      1.1  christos 
   3868      1.1  christos /* Look through the relocs for a section during the first phase, and
   3869      1.1  christos    allocate space in the global offset table or procedure linkage
   3870      1.1  christos    table.  */
   3871      1.1  christos 
   3872      1.1  christos static bfd_boolean
   3873      1.1  christos ppc_elf_check_relocs (bfd *abfd,
   3874      1.1  christos 		      struct bfd_link_info *info,
   3875      1.1  christos 		      asection *sec,
   3876      1.1  christos 		      const Elf_Internal_Rela *relocs)
   3877      1.1  christos {
   3878      1.1  christos   struct ppc_elf_link_hash_table *htab;
   3879      1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   3880      1.1  christos   struct elf_link_hash_entry **sym_hashes;
   3881      1.1  christos   const Elf_Internal_Rela *rel;
   3882      1.1  christos   const Elf_Internal_Rela *rel_end;
   3883      1.1  christos   asection *got2, *sreloc;
   3884      1.1  christos   struct elf_link_hash_entry *tga;
   3885      1.1  christos 
   3886      1.1  christos   if (info->relocatable)
   3887      1.1  christos     return TRUE;
   3888      1.1  christos 
   3889      1.1  christos   /* Don't do anything special with non-loaded, non-alloced sections.
   3890      1.1  christos      In particular, any relocs in such sections should not affect GOT
   3891      1.1  christos      and PLT reference counting (ie. we don't allow them to create GOT
   3892      1.1  christos      or PLT entries), there's no possibility or desire to optimize TLS
   3893      1.1  christos      relocs, and there's not much point in propagating relocs to shared
   3894      1.1  christos      libs that the dynamic linker won't relocate.  */
   3895      1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   3896      1.1  christos     return TRUE;
   3897      1.1  christos 
   3898      1.1  christos #ifdef DEBUG
   3899      1.1  christos   _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
   3900      1.1  christos 		      sec, abfd);
   3901      1.1  christos #endif
   3902      1.1  christos 
   3903      1.1  christos   BFD_ASSERT (is_ppc_elf (abfd));
   3904      1.1  christos 
   3905      1.1  christos   /* Initialize howto table if not already done.  */
   3906      1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   3907      1.1  christos     ppc_elf_howto_init ();
   3908      1.1  christos 
   3909      1.1  christos   htab = ppc_elf_hash_table (info);
   3910      1.1  christos   if (htab->glink == NULL)
   3911      1.1  christos     {
   3912      1.1  christos       if (htab->elf.dynobj == NULL)
   3913      1.1  christos 	htab->elf.dynobj = abfd;
   3914      1.1  christos       if (!ppc_elf_create_glink (htab->elf.dynobj, info))
   3915      1.1  christos 	return FALSE;
   3916      1.1  christos     }
   3917      1.1  christos   tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   3918      1.1  christos 			      FALSE, FALSE, TRUE);
   3919      1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   3920      1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   3921      1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   3922      1.1  christos   sreloc = NULL;
   3923      1.1  christos 
   3924      1.1  christos   rel_end = relocs + sec->reloc_count;
   3925      1.1  christos   for (rel = relocs; rel < rel_end; rel++)
   3926      1.1  christos     {
   3927      1.1  christos       unsigned long r_symndx;
   3928      1.1  christos       enum elf_ppc_reloc_type r_type;
   3929      1.1  christos       struct elf_link_hash_entry *h;
   3930      1.1  christos       int tls_type;
   3931      1.1  christos 
   3932      1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   3933      1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   3934      1.1  christos 	h = NULL;
   3935      1.1  christos       else
   3936      1.1  christos 	{
   3937      1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   3938      1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   3939      1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   3940      1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   3941      1.1  christos 
   3942      1.1  christos 	  /* PR15323, ref flags aren't set for references in the same
   3943      1.1  christos 	     object.  */
   3944      1.1  christos 	  h->root.non_ir_ref = 1;
   3945      1.1  christos 	}
   3946      1.1  christos 
   3947      1.1  christos       /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
   3948      1.1  christos 	 This shows up in particular in an R_PPC_ADDR32 in the eabi
   3949      1.1  christos 	 startup code.  */
   3950      1.1  christos       if (h != NULL
   3951      1.1  christos 	  && htab->got == NULL
   3952      1.1  christos 	  && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
   3953      1.1  christos 	{
   3954      1.1  christos 	  if (htab->elf.dynobj == NULL)
   3955      1.1  christos 	    htab->elf.dynobj = abfd;
   3956      1.1  christos 	  if (!ppc_elf_create_got (htab->elf.dynobj, info))
   3957      1.1  christos 	    return FALSE;
   3958      1.1  christos 	  BFD_ASSERT (h == htab->elf.hgot);
   3959      1.1  christos 	}
   3960      1.1  christos 
   3961      1.1  christos       tls_type = 0;
   3962      1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   3963      1.1  christos       if (h == NULL && !htab->is_vxworks)
   3964      1.1  christos 	{
   3965      1.1  christos 	  Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   3966      1.1  christos 							  abfd, r_symndx);
   3967      1.1  christos 	  if (isym == NULL)
   3968      1.1  christos 	    return FALSE;
   3969      1.1  christos 
   3970      1.1  christos 	  if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
   3971      1.1  christos 	    {
   3972      1.1  christos 	      struct plt_entry **ifunc;
   3973      1.1  christos 
   3974      1.1  christos 	      /* Set PLT_IFUNC flag for this sym, no GOT entry yet.  */
   3975      1.1  christos 	      ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
   3976      1.1  christos 					     PLT_IFUNC);
   3977      1.1  christos 	      if (ifunc == NULL)
   3978      1.1  christos 		return FALSE;
   3979      1.1  christos 
   3980      1.1  christos 	      /* STT_GNU_IFUNC symbols must have a PLT entry;
   3981      1.1  christos 		 In a non-pie executable even when there are
   3982      1.1  christos 		 no plt calls.  */
   3983      1.1  christos 	      if (!info->shared
   3984      1.1  christos 		  || is_branch_reloc (r_type))
   3985      1.1  christos 		{
   3986      1.1  christos 		  bfd_vma addend = 0;
   3987      1.1  christos 		  if (r_type == R_PPC_PLTREL24)
   3988      1.1  christos 		    {
   3989      1.1  christos 		      ppc_elf_tdata (abfd)->makes_plt_call = 1;
   3990      1.1  christos 		      if (info->shared)
   3991      1.1  christos 			addend = rel->r_addend;
   3992      1.1  christos 		    }
   3993      1.1  christos 		  if (!update_plt_info (abfd, ifunc, got2, addend))
   3994      1.1  christos 		    return FALSE;
   3995      1.1  christos 		}
   3996      1.1  christos 	    }
   3997      1.1  christos 	}
   3998      1.1  christos 
   3999      1.1  christos       if (!htab->is_vxworks
   4000      1.1  christos 	  && is_branch_reloc (r_type)
   4001      1.1  christos 	  && h != NULL
   4002      1.1  christos 	  && h == tga)
   4003      1.1  christos 	{
   4004      1.1  christos 	  if (rel != relocs
   4005      1.1  christos 	      && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
   4006      1.1  christos 		  || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
   4007      1.1  christos 	    /* We have a new-style __tls_get_addr call with a marker
   4008      1.1  christos 	       reloc.  */
   4009      1.1  christos 	    ;
   4010      1.1  christos 	  else
   4011      1.1  christos 	    /* Mark this section as having an old-style call.  */
   4012      1.1  christos 	    sec->has_tls_get_addr_call = 1;
   4013      1.1  christos 	}
   4014      1.1  christos 
   4015      1.1  christos       switch (r_type)
   4016      1.1  christos 	{
   4017      1.1  christos 	case R_PPC_TLSGD:
   4018      1.1  christos 	case R_PPC_TLSLD:
   4019      1.1  christos 	  /* These special tls relocs tie a call to __tls_get_addr with
   4020      1.1  christos 	     its parameter symbol.  */
   4021      1.1  christos 	  break;
   4022      1.1  christos 
   4023      1.1  christos 	case R_PPC_GOT_TLSLD16:
   4024      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   4025      1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   4026      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   4027      1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   4028      1.1  christos 	  goto dogottls;
   4029      1.1  christos 
   4030      1.1  christos 	case R_PPC_GOT_TLSGD16:
   4031      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   4032      1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   4033      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   4034      1.3  christos 	  tls_type = TLS_TLS | TLS_GD;
   4035      1.1  christos 	  goto dogottls;
   4036      1.1  christos 
   4037      1.1  christos 	case R_PPC_GOT_TPREL16:
   4038      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   4039      1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   4040      1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   4041      1.1  christos 	  if (info->shared)
   4042      1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4043      1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   4044      1.1  christos 	  goto dogottls;
   4045      1.1  christos 
   4046      1.1  christos 	case R_PPC_GOT_DTPREL16:
   4047      1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   4048      1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   4049      1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   4050      1.1  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   4051      1.1  christos 	dogottls:
   4052      1.1  christos 	  sec->has_tls_reloc = 1;
   4053      1.1  christos 	  /* Fall thru */
   4054      1.1  christos 
   4055      1.1  christos 	  /* GOT16 relocations */
   4056      1.1  christos 	case R_PPC_GOT16:
   4057      1.1  christos 	case R_PPC_GOT16_LO:
   4058      1.1  christos 	case R_PPC_GOT16_HI:
   4059      1.1  christos 	case R_PPC_GOT16_HA:
   4060      1.1  christos 	  /* This symbol requires a global offset table entry.  */
   4061      1.1  christos 	  if (htab->got == NULL)
   4062      1.1  christos 	    {
   4063      1.1  christos 	      if (htab->elf.dynobj == NULL)
   4064      1.1  christos 		htab->elf.dynobj = abfd;
   4065      1.1  christos 	      if (!ppc_elf_create_got (htab->elf.dynobj, info))
   4066      1.1  christos 		return FALSE;
   4067      1.1  christos 	    }
   4068      1.1  christos 	  if (h != NULL)
   4069      1.1  christos 	    {
   4070      1.1  christos 	      h->got.refcount += 1;
   4071      1.1  christos 	      ppc_elf_hash_entry (h)->tls_mask |= tls_type;
   4072      1.1  christos 	    }
   4073      1.1  christos 	  else
   4074      1.1  christos 	    /* This is a global offset table entry for a local symbol.  */
   4075      1.1  christos 	    if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
   4076      1.1  christos 	      return FALSE;
   4077      1.1  christos 
   4078      1.1  christos 	  /* We may also need a plt entry if the symbol turns out to be
   4079      1.1  christos 	     an ifunc.  */
   4080      1.1  christos 	  if (h != NULL && !info->shared)
   4081      1.1  christos 	    {
   4082      1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4083      1.1  christos 		return FALSE;
   4084      1.1  christos 	    }
   4085      1.1  christos 	  break;
   4086      1.1  christos 
   4087      1.3  christos 	  /* Indirect .sdata relocation.  */
   4088      1.3  christos 	case R_PPC_EMB_SDAI16:
   4089      1.3  christos 	  if (info->shared)
   4090      1.1  christos 	    {
   4091      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4092      1.1  christos 	      return FALSE;
   4093      1.1  christos 	    }
   4094      1.1  christos 	  htab->sdata[0].sym->ref_regular = 1;
   4095      1.1  christos 	  if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
   4096      1.1  christos 						    h, rel))
   4097      1.1  christos 	    return FALSE;
   4098      1.1  christos 	  if (h != NULL)
   4099      1.1  christos 	    {
   4100      1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4101      1.1  christos 	      h->non_got_ref = TRUE;
   4102      1.1  christos 	    }
   4103      1.1  christos 	  break;
   4104      1.1  christos 
   4105      1.3  christos 	  /* Indirect .sdata2 relocation.  */
   4106      1.3  christos 	case R_PPC_EMB_SDA2I16:
   4107      1.3  christos 	  if (info->shared)
   4108      1.1  christos 	    {
   4109      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4110      1.1  christos 	      return FALSE;
   4111      1.1  christos 	    }
   4112      1.1  christos 	  htab->sdata[1].sym->ref_regular = 1;
   4113      1.1  christos 	  if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
   4114      1.1  christos 						    h, rel))
   4115      1.1  christos 	    return FALSE;
   4116      1.3  christos 	  if (h != NULL)
   4117      1.3  christos 	    {
   4118      1.3  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4119      1.3  christos 	      h->non_got_ref = TRUE;
   4120      1.1  christos 	    }
   4121      1.1  christos 	  break;
   4122      1.1  christos 
   4123      1.1  christos 	case R_PPC_SDAREL16:
   4124      1.1  christos 	  htab->sdata[0].sym->ref_regular = 1;
   4125      1.1  christos 	  /* Fall thru */
   4126      1.1  christos 
   4127      1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   4128      1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   4129      1.1  christos 	case R_PPC_VLE_SDAREL_HI16A:
   4130      1.1  christos 	case R_PPC_VLE_SDAREL_HI16D:
   4131      1.1  christos 	case R_PPC_VLE_SDAREL_HA16A:
   4132      1.1  christos 	case R_PPC_VLE_SDAREL_HA16D:
   4133      1.1  christos 	  if (h != NULL)
   4134      1.1  christos 	    {
   4135      1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4136      1.1  christos 	      h->non_got_ref = TRUE;
   4137      1.1  christos 	    }
   4138      1.1  christos 	  break;
   4139      1.1  christos 
   4140      1.1  christos 	case R_PPC_VLE_REL8:
   4141      1.1  christos 	case R_PPC_VLE_REL15:
   4142      1.1  christos 	case R_PPC_VLE_REL24:
   4143      1.1  christos 	case R_PPC_VLE_LO16A:
   4144      1.1  christos 	case R_PPC_VLE_LO16D:
   4145      1.1  christos 	case R_PPC_VLE_HI16A:
   4146      1.1  christos 	case R_PPC_VLE_HI16D:
   4147      1.1  christos 	case R_PPC_VLE_HA16A:
   4148      1.1  christos 	case R_PPC_VLE_HA16D:
   4149      1.1  christos 	  break;
   4150      1.3  christos 
   4151      1.1  christos 	case R_PPC_EMB_SDA2REL:
   4152      1.1  christos 	  if (info->shared)
   4153      1.1  christos 	    {
   4154      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4155      1.1  christos 	      return FALSE;
   4156      1.1  christos 	    }
   4157      1.1  christos 	  htab->sdata[1].sym->ref_regular = 1;
   4158      1.1  christos 	  if (h != NULL)
   4159      1.1  christos 	    {
   4160      1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4161      1.1  christos 	      h->non_got_ref = TRUE;
   4162      1.1  christos 	    }
   4163      1.1  christos 	  break;
   4164      1.1  christos 
   4165      1.1  christos 	case R_PPC_VLE_SDA21_LO:
   4166      1.1  christos 	case R_PPC_VLE_SDA21:
   4167      1.1  christos 	case R_PPC_EMB_SDA21:
   4168      1.1  christos 	case R_PPC_EMB_RELSDA:
   4169      1.1  christos 	  if (info->shared)
   4170      1.1  christos 	    {
   4171      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4172      1.1  christos 	      return FALSE;
   4173      1.1  christos 	    }
   4174      1.1  christos 	  if (h != NULL)
   4175      1.1  christos 	    {
   4176      1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4177      1.1  christos 	      h->non_got_ref = TRUE;
   4178      1.1  christos 	    }
   4179      1.1  christos 	  break;
   4180      1.1  christos 
   4181      1.1  christos 	case R_PPC_EMB_NADDR32:
   4182      1.1  christos 	case R_PPC_EMB_NADDR16:
   4183      1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   4184      1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   4185      1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   4186      1.1  christos 	  if (info->shared)
   4187      1.1  christos 	    {
   4188      1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4189      1.1  christos 	      return FALSE;
   4190      1.1  christos 	    }
   4191      1.1  christos 	  if (h != NULL)
   4192      1.1  christos 	    h->non_got_ref = TRUE;
   4193      1.1  christos 	  break;
   4194      1.1  christos 
   4195      1.1  christos 	case R_PPC_PLTREL24:
   4196      1.1  christos 	  if (h == NULL)
   4197      1.1  christos 	    break;
   4198      1.1  christos 	  /* Fall through */
   4199      1.1  christos 	case R_PPC_PLT32:
   4200      1.1  christos 	case R_PPC_PLTREL32:
   4201      1.1  christos 	case R_PPC_PLT16_LO:
   4202      1.1  christos 	case R_PPC_PLT16_HI:
   4203      1.1  christos 	case R_PPC_PLT16_HA:
   4204      1.1  christos #ifdef DEBUG
   4205      1.1  christos 	  fprintf (stderr, "Reloc requires a PLT entry\n");
   4206      1.1  christos #endif
   4207      1.1  christos 	  /* This symbol requires a procedure linkage table entry.  We
   4208      1.1  christos 	     actually build the entry in finish_dynamic_symbol,
   4209      1.1  christos 	     because this might be a case of linking PIC code without
   4210      1.1  christos 	     linking in any dynamic objects, in which case we don't
   4211      1.1  christos 	     need to generate a procedure linkage table after all.  */
   4212      1.1  christos 
   4213      1.1  christos 	  if (h == NULL)
   4214      1.1  christos 	    {
   4215      1.1  christos 	      /* It does not make sense to have a procedure linkage
   4216      1.1  christos 		 table entry for a local symbol.  */
   4217      1.1  christos 	      info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
   4218      1.1  christos 				      abfd, sec, rel->r_offset,
   4219      1.1  christos 				      ppc_elf_howto_table[r_type]->name);
   4220      1.1  christos 	      bfd_set_error (bfd_error_bad_value);
   4221      1.1  christos 	      return FALSE;
   4222      1.1  christos 	    }
   4223      1.1  christos 	  else
   4224      1.1  christos 	    {
   4225      1.1  christos 	      bfd_vma addend = 0;
   4226      1.1  christos 
   4227      1.1  christos 	      if (r_type == R_PPC_PLTREL24)
   4228      1.1  christos 		{
   4229      1.1  christos 		  ppc_elf_tdata (abfd)->makes_plt_call = 1;
   4230      1.1  christos 		  if (info->shared)
   4231      1.1  christos 		    addend = rel->r_addend;
   4232      1.1  christos 		}
   4233      1.1  christos 	      h->needs_plt = 1;
   4234      1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
   4235      1.1  christos 		return FALSE;
   4236      1.1  christos 	    }
   4237      1.1  christos 	  break;
   4238      1.1  christos 
   4239      1.1  christos 	  /* The following relocations don't need to propagate the
   4240      1.1  christos 	     relocation if linking a shared object since they are
   4241      1.1  christos 	     section relative.  */
   4242      1.1  christos 	case R_PPC_SECTOFF:
   4243      1.1  christos 	case R_PPC_SECTOFF_LO:
   4244      1.1  christos 	case R_PPC_SECTOFF_HI:
   4245      1.1  christos 	case R_PPC_SECTOFF_HA:
   4246      1.1  christos 	case R_PPC_DTPREL16:
   4247      1.1  christos 	case R_PPC_DTPREL16_LO:
   4248      1.1  christos 	case R_PPC_DTPREL16_HI:
   4249      1.1  christos 	case R_PPC_DTPREL16_HA:
   4250      1.1  christos 	case R_PPC_TOC16:
   4251      1.1  christos 	  break;
   4252      1.1  christos 
   4253      1.1  christos 	case R_PPC_REL16:
   4254      1.1  christos 	case R_PPC_REL16_LO:
   4255      1.1  christos 	case R_PPC_REL16_HI:
   4256      1.1  christos 	case R_PPC_REL16_HA:
   4257      1.1  christos 	  ppc_elf_tdata (abfd)->has_rel16 = 1;
   4258      1.1  christos 	  break;
   4259      1.1  christos 
   4260      1.1  christos 	  /* These are just markers.  */
   4261      1.1  christos 	case R_PPC_TLS:
   4262      1.1  christos 	case R_PPC_EMB_MRKREF:
   4263      1.1  christos 	case R_PPC_NONE:
   4264      1.1  christos 	case R_PPC_max:
   4265      1.1  christos 	case R_PPC_RELAX:
   4266      1.1  christos 	case R_PPC_RELAX_PLT:
   4267      1.1  christos 	case R_PPC_RELAX_PLTREL24:
   4268      1.1  christos 	  break;
   4269      1.1  christos 
   4270      1.1  christos 	  /* These should only appear in dynamic objects.  */
   4271      1.1  christos 	case R_PPC_COPY:
   4272      1.1  christos 	case R_PPC_GLOB_DAT:
   4273      1.1  christos 	case R_PPC_JMP_SLOT:
   4274      1.1  christos 	case R_PPC_RELATIVE:
   4275      1.1  christos 	case R_PPC_IRELATIVE:
   4276      1.1  christos 	  break;
   4277      1.1  christos 
   4278      1.1  christos 	  /* These aren't handled yet.  We'll report an error later.  */
   4279      1.1  christos 	case R_PPC_ADDR30:
   4280      1.1  christos 	case R_PPC_EMB_RELSEC16:
   4281      1.1  christos 	case R_PPC_EMB_RELST_LO:
   4282      1.1  christos 	case R_PPC_EMB_RELST_HI:
   4283      1.1  christos 	case R_PPC_EMB_RELST_HA:
   4284      1.1  christos 	case R_PPC_EMB_BIT_FLD:
   4285      1.1  christos 	  break;
   4286      1.1  christos 
   4287      1.3  christos 	  /* This refers only to functions defined in the shared library.  */
   4288      1.3  christos 	case R_PPC_LOCAL24PC:
   4289      1.3  christos 	  if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
   4290      1.3  christos 	    {
   4291      1.3  christos 	      htab->plt_type = PLT_OLD;
   4292      1.3  christos 	      htab->old_bfd = abfd;
   4293      1.3  christos 	    }
   4294      1.3  christos 	  if (h != NULL && h->type == STT_GNU_IFUNC)
   4295      1.3  christos 	    {
   4296      1.3  christos 	      if (info->shared)
   4297      1.3  christos 		{
   4298      1.3  christos 		  info->callbacks->einfo (_("%P: %H: @local call to ifunc %s\n"),
   4299      1.3  christos 					  abfd, sec, rel->r_offset,
   4300      1.3  christos 					  h->root.root.string);
   4301      1.1  christos 		  bfd_set_error (bfd_error_bad_value);
   4302      1.1  christos 		  return FALSE;
   4303      1.1  christos 		}
   4304      1.1  christos 	      h->needs_plt = 1;
   4305      1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4306      1.1  christos 		return FALSE;
   4307      1.1  christos 	    }
   4308      1.1  christos 	  break;
   4309      1.1  christos 
   4310      1.1  christos 	  /* This relocation describes the C++ object vtable hierarchy.
   4311      1.1  christos 	     Reconstruct it for later use during GC.  */
   4312      1.1  christos 	case R_PPC_GNU_VTINHERIT:
   4313      1.1  christos 	  if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
   4314      1.1  christos 	    return FALSE;
   4315      1.1  christos 	  break;
   4316      1.1  christos 
   4317      1.1  christos 	  /* This relocation describes which C++ vtable entries are actually
   4318      1.1  christos 	     used.  Record for later use during GC.  */
   4319      1.1  christos 	case R_PPC_GNU_VTENTRY:
   4320      1.1  christos 	  BFD_ASSERT (h != NULL);
   4321      1.1  christos 	  if (h != NULL
   4322      1.1  christos 	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
   4323      1.1  christos 	    return FALSE;
   4324      1.1  christos 	  break;
   4325      1.3  christos 
   4326      1.1  christos 	  /* We shouldn't really be seeing these.  */
   4327      1.1  christos 	case R_PPC_TPREL32:
   4328      1.1  christos 	case R_PPC_TPREL16:
   4329      1.1  christos 	case R_PPC_TPREL16_LO:
   4330      1.1  christos 	case R_PPC_TPREL16_HI:
   4331      1.1  christos 	case R_PPC_TPREL16_HA:
   4332      1.1  christos 	  if (info->shared)
   4333      1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4334      1.1  christos 	  goto dodyn;
   4335      1.1  christos 
   4336      1.1  christos 	  /* Nor these.  */
   4337      1.1  christos 	case R_PPC_DTPMOD32:
   4338      1.1  christos 	case R_PPC_DTPREL32:
   4339      1.1  christos 	  goto dodyn;
   4340      1.1  christos 
   4341      1.1  christos 	case R_PPC_REL32:
   4342      1.1  christos 	  if (h == NULL
   4343      1.1  christos 	      && got2 != NULL
   4344      1.1  christos 	      && (sec->flags & SEC_CODE) != 0
   4345      1.1  christos 	      && info->shared
   4346      1.1  christos 	      && htab->plt_type == PLT_UNSET)
   4347      1.1  christos 	    {
   4348      1.1  christos 	      /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
   4349      1.1  christos 		 the start of a function, which assembles to a REL32
   4350      1.1  christos 		 reference to .got2.  If we detect one of these, then
   4351      1.1  christos 		 force the old PLT layout because the linker cannot
   4352      1.1  christos 		 reliably deduce the GOT pointer value needed for
   4353      1.1  christos 		 PLT call stubs.  */
   4354      1.1  christos 	      asection *s;
   4355      1.1  christos 	      Elf_Internal_Sym *isym;
   4356      1.1  christos 
   4357      1.1  christos 	      isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4358      1.1  christos 					    abfd, r_symndx);
   4359      1.1  christos 	      if (isym == NULL)
   4360      1.1  christos 		return FALSE;
   4361      1.1  christos 
   4362      1.1  christos 	      s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4363      1.1  christos 	      if (s == got2)
   4364      1.1  christos 		{
   4365      1.1  christos 		  htab->plt_type = PLT_OLD;
   4366      1.1  christos 		  htab->old_bfd = abfd;
   4367      1.1  christos 		}
   4368      1.1  christos 	    }
   4369      1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   4370      1.1  christos 	    break;
   4371      1.1  christos 	  /* fall through */
   4372      1.1  christos 
   4373      1.1  christos 	case R_PPC_ADDR32:
   4374      1.1  christos 	case R_PPC_ADDR16:
   4375      1.1  christos 	case R_PPC_ADDR16_LO:
   4376      1.1  christos 	case R_PPC_ADDR16_HI:
   4377      1.1  christos 	case R_PPC_ADDR16_HA:
   4378      1.1  christos 	case R_PPC_UADDR32:
   4379      1.1  christos 	case R_PPC_UADDR16:
   4380      1.1  christos 	  if (h != NULL && !info->shared)
   4381      1.1  christos 	    {
   4382      1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4383  1.3.2.1  pgoyette 		 a function defined in a dynamic object.  */
   4384  1.3.2.1  pgoyette 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4385  1.3.2.1  pgoyette 		return FALSE;
   4386  1.3.2.1  pgoyette 
   4387      1.1  christos 	      /* We may need a copy reloc too.  */
   4388      1.1  christos 	      h->non_got_ref = 1;
   4389      1.1  christos 	      h->pointer_equality_needed = 1;
   4390      1.1  christos 	      if (r_type == R_PPC_ADDR16_HA)
   4391      1.1  christos 		ppc_elf_hash_entry (h)->has_addr16_ha = 1;
   4392      1.1  christos 	      if (r_type == R_PPC_ADDR16_LO)
   4393      1.1  christos 		ppc_elf_hash_entry (h)->has_addr16_lo = 1;
   4394      1.1  christos 	    }
   4395      1.1  christos 	  goto dodyn;
   4396      1.1  christos 
   4397      1.1  christos 	case R_PPC_REL24:
   4398      1.1  christos 	case R_PPC_REL14:
   4399      1.1  christos 	case R_PPC_REL14_BRTAKEN:
   4400      1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   4401      1.1  christos 	  if (h == NULL)
   4402      1.1  christos 	    break;
   4403      1.1  christos 	  if (h == htab->elf.hgot)
   4404      1.1  christos 	    {
   4405      1.1  christos 	      if (htab->plt_type == PLT_UNSET)
   4406      1.1  christos 		{
   4407      1.1  christos 		  htab->plt_type = PLT_OLD;
   4408      1.1  christos 		  htab->old_bfd = abfd;
   4409      1.1  christos 		}
   4410      1.1  christos 	      break;
   4411      1.1  christos 	    }
   4412      1.1  christos 	  /* fall through */
   4413      1.1  christos 
   4414      1.1  christos 	case R_PPC_ADDR24:
   4415      1.1  christos 	case R_PPC_ADDR14:
   4416      1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   4417      1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   4418      1.1  christos 	  if (h != NULL && !info->shared)
   4419      1.1  christos 	    {
   4420      1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4421      1.1  christos 		 a function defined in a dynamic object.  */
   4422      1.1  christos 	      h->needs_plt = 1;
   4423      1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4424      1.1  christos 		return FALSE;
   4425      1.1  christos 	      break;
   4426      1.1  christos 	    }
   4427      1.1  christos 
   4428      1.1  christos 	dodyn:
   4429      1.1  christos 	  /* If we are creating a shared library, and this is a reloc
   4430      1.1  christos 	     against a global symbol, or a non PC relative reloc
   4431      1.1  christos 	     against a local symbol, then we need to copy the reloc
   4432      1.1  christos 	     into the shared library.  However, if we are linking with
   4433      1.1  christos 	     -Bsymbolic, we do not need to copy a reloc against a
   4434      1.1  christos 	     global symbol which is defined in an object we are
   4435      1.1  christos 	     including in the link (i.e., DEF_REGULAR is set).  At
   4436      1.1  christos 	     this point we have not seen all the input files, so it is
   4437      1.1  christos 	     possible that DEF_REGULAR is not set now but will be set
   4438      1.1  christos 	     later (it is never cleared).  In case of a weak definition,
   4439      1.1  christos 	     DEF_REGULAR may be cleared later by a strong definition in
   4440      1.1  christos 	     a shared library.  We account for that possibility below by
   4441      1.1  christos 	     storing information in the dyn_relocs field of the hash
   4442      1.1  christos 	     table entry.  A similar situation occurs when creating
   4443      1.1  christos 	     shared libraries and symbol visibility changes render the
   4444      1.1  christos 	     symbol local.
   4445      1.1  christos 
   4446      1.1  christos 	     If on the other hand, we are creating an executable, we
   4447      1.1  christos 	     may need to keep relocations for symbols satisfied by a
   4448      1.1  christos 	     dynamic library if we manage to avoid copy relocs for the
   4449      1.1  christos 	     symbol.  */
   4450      1.1  christos 	  if ((info->shared
   4451      1.1  christos 	       && (must_be_dyn_reloc (info, r_type)
   4452      1.1  christos 		   || (h != NULL
   4453      1.1  christos 		       && (!SYMBOLIC_BIND (info, h)
   4454      1.1  christos 			   || h->root.type == bfd_link_hash_defweak
   4455      1.1  christos 			   || !h->def_regular))))
   4456      1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   4457      1.1  christos 		  && !info->shared
   4458      1.1  christos 		  && h != NULL
   4459      1.1  christos 		  && (h->root.type == bfd_link_hash_defweak
   4460      1.1  christos 		      || !h->def_regular)))
   4461      1.1  christos 	    {
   4462      1.1  christos #ifdef DEBUG
   4463      1.1  christos 	      fprintf (stderr,
   4464      1.1  christos 		       "ppc_elf_check_relocs needs to "
   4465      1.1  christos 		       "create relocation for %s\n",
   4466      1.1  christos 		       (h && h->root.root.string
   4467      1.1  christos 			? h->root.root.string : "<unknown>"));
   4468      1.1  christos #endif
   4469      1.1  christos 	      if (sreloc == NULL)
   4470      1.1  christos 		{
   4471      1.1  christos 		  if (htab->elf.dynobj == NULL)
   4472      1.1  christos 		    htab->elf.dynobj = abfd;
   4473      1.1  christos 
   4474      1.1  christos 		  sreloc = _bfd_elf_make_dynamic_reloc_section
   4475      1.1  christos 		    (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
   4476      1.1  christos 
   4477      1.1  christos 		  if (sreloc == NULL)
   4478      1.1  christos 		    return FALSE;
   4479      1.1  christos 		}
   4480      1.1  christos 
   4481      1.1  christos 	      /* If this is a global symbol, we count the number of
   4482      1.1  christos 		 relocations we need for this symbol.  */
   4483      1.1  christos 	      if (h != NULL)
   4484      1.1  christos 		{
   4485      1.1  christos 		  struct elf_dyn_relocs *p;
   4486      1.1  christos 		  struct elf_dyn_relocs **rel_head;
   4487      1.1  christos 
   4488      1.1  christos 		  rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
   4489      1.1  christos 		  p = *rel_head;
   4490      1.1  christos 		  if (p == NULL || p->sec != sec)
   4491      1.1  christos 		    {
   4492      1.1  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4493      1.1  christos 		      if (p == NULL)
   4494      1.1  christos 			return FALSE;
   4495      1.1  christos 		      p->next = *rel_head;
   4496      1.1  christos 		      *rel_head = p;
   4497      1.1  christos 		      p->sec = sec;
   4498      1.1  christos 		      p->count = 0;
   4499      1.1  christos 		      p->pc_count = 0;
   4500      1.1  christos 		    }
   4501      1.1  christos 		  p->count += 1;
   4502      1.1  christos 		  if (!must_be_dyn_reloc (info, r_type))
   4503      1.1  christos 		    p->pc_count += 1;
   4504      1.1  christos 		}
   4505      1.1  christos 	      else
   4506      1.1  christos 		{
   4507      1.1  christos 		  /* Track dynamic relocs needed for local syms too.
   4508      1.1  christos 		     We really need local syms available to do this
   4509      1.1  christos 		     easily.  Oh well.  */
   4510      1.1  christos 		  struct ppc_dyn_relocs *p;
   4511      1.1  christos 		  struct ppc_dyn_relocs **rel_head;
   4512      1.1  christos 		  bfd_boolean is_ifunc;
   4513      1.1  christos 		  asection *s;
   4514      1.1  christos 		  void *vpp;
   4515      1.1  christos 		  Elf_Internal_Sym *isym;
   4516      1.1  christos 
   4517      1.1  christos 		  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4518      1.1  christos 						abfd, r_symndx);
   4519      1.1  christos 		  if (isym == NULL)
   4520      1.1  christos 		    return FALSE;
   4521      1.1  christos 
   4522      1.1  christos 		  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4523      1.1  christos 		  if (s == NULL)
   4524      1.1  christos 		    s = sec;
   4525      1.1  christos 
   4526      1.1  christos 		  vpp = &elf_section_data (s)->local_dynrel;
   4527      1.1  christos 		  rel_head = (struct ppc_dyn_relocs **) vpp;
   4528      1.1  christos 		  is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
   4529      1.1  christos 		  p = *rel_head;
   4530      1.1  christos 		  if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
   4531      1.1  christos 		    p = p->next;
   4532      1.1  christos 		  if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
   4533      1.1  christos 		    {
   4534      1.1  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4535      1.1  christos 		      if (p == NULL)
   4536      1.1  christos 			return FALSE;
   4537      1.1  christos 		      p->next = *rel_head;
   4538      1.1  christos 		      *rel_head = p;
   4539      1.1  christos 		      p->sec = sec;
   4540      1.1  christos 		      p->ifunc = is_ifunc;
   4541      1.1  christos 		      p->count = 0;
   4542      1.1  christos 		    }
   4543      1.1  christos 		  p->count += 1;
   4544      1.1  christos 		}
   4545      1.1  christos 	    }
   4546      1.1  christos 
   4547      1.1  christos 	  break;
   4548      1.1  christos 	}
   4549      1.1  christos     }
   4550      1.1  christos 
   4551      1.1  christos   return TRUE;
   4552      1.1  christos }
   4553      1.1  christos 
   4554      1.1  christos 
   4556      1.1  christos /* Merge object attributes from IBFD into OBFD.  Raise an error if
   4557      1.1  christos    there are conflicting attributes.  */
   4558      1.1  christos static bfd_boolean
   4559      1.1  christos ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
   4560      1.1  christos {
   4561      1.1  christos   obj_attribute *in_attr, *in_attrs;
   4562      1.1  christos   obj_attribute *out_attr, *out_attrs;
   4563      1.1  christos 
   4564      1.1  christos   if (!elf_known_obj_attributes_proc (obfd)[0].i)
   4565      1.1  christos     {
   4566      1.1  christos       /* This is the first object.  Copy the attributes.  */
   4567      1.1  christos       _bfd_elf_copy_obj_attributes (ibfd, obfd);
   4568      1.1  christos 
   4569      1.1  christos       /* Use the Tag_null value to indicate the attributes have been
   4570      1.1  christos 	 initialized.  */
   4571      1.1  christos       elf_known_obj_attributes_proc (obfd)[0].i = 1;
   4572      1.1  christos 
   4573      1.1  christos       return TRUE;
   4574      1.1  christos     }
   4575      1.1  christos 
   4576      1.1  christos   in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
   4577      1.1  christos   out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
   4578      1.1  christos 
   4579      1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
   4580      1.1  christos      non-conflicting ones.  */
   4581      1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
   4582      1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
   4583      1.1  christos   if (in_attr->i != out_attr->i)
   4584      1.1  christos     {
   4585      1.1  christos       out_attr->type = 1;
   4586      1.1  christos       if (out_attr->i == 0)
   4587      1.1  christos 	out_attr->i = in_attr->i;
   4588      1.1  christos       else if (in_attr->i == 0)
   4589      1.1  christos 	;
   4590      1.1  christos       else if (out_attr->i == 1 && in_attr->i == 2)
   4591      1.1  christos 	_bfd_error_handler
   4592      1.1  christos 	  (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
   4593      1.1  christos       else if (out_attr->i == 1 && in_attr->i == 3)
   4594      1.1  christos 	_bfd_error_handler
   4595      1.1  christos 	  (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
   4596      1.1  christos 	  obfd, ibfd);
   4597      1.1  christos       else if (out_attr->i == 3 && in_attr->i == 1)
   4598      1.1  christos 	_bfd_error_handler
   4599      1.1  christos 	  (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
   4600      1.1  christos 	  ibfd, obfd);
   4601      1.1  christos       else if (out_attr->i == 3 && in_attr->i == 2)
   4602      1.1  christos 	_bfd_error_handler
   4603      1.1  christos 	  (_("Warning: %B uses soft float, %B uses single-precision hard float"),
   4604      1.1  christos 	  ibfd, obfd);
   4605      1.1  christos       else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
   4606      1.1  christos 	_bfd_error_handler
   4607      1.1  christos 	  (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
   4608      1.1  christos       else if (in_attr->i > 3)
   4609      1.1  christos 	_bfd_error_handler
   4610      1.1  christos 	  (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
   4611      1.1  christos 	   in_attr->i);
   4612      1.1  christos       else
   4613      1.1  christos 	_bfd_error_handler
   4614      1.1  christos 	  (_("Warning: %B uses unknown floating point ABI %d"), obfd,
   4615      1.1  christos 	   out_attr->i);
   4616      1.1  christos     }
   4617      1.1  christos 
   4618      1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
   4619      1.1  christos      merge non-conflicting ones.  */
   4620      1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
   4621      1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
   4622      1.1  christos   if (in_attr->i != out_attr->i)
   4623      1.1  christos     {
   4624      1.1  christos       const char *in_abi = NULL, *out_abi = NULL;
   4625      1.1  christos 
   4626      1.1  christos       switch (in_attr->i)
   4627      1.1  christos 	{
   4628      1.1  christos 	case 1: in_abi = "generic"; break;
   4629      1.1  christos 	case 2: in_abi = "AltiVec"; break;
   4630      1.1  christos 	case 3: in_abi = "SPE"; break;
   4631      1.1  christos 	}
   4632      1.1  christos 
   4633      1.1  christos       switch (out_attr->i)
   4634      1.1  christos 	{
   4635      1.1  christos 	case 1: out_abi = "generic"; break;
   4636      1.1  christos 	case 2: out_abi = "AltiVec"; break;
   4637      1.1  christos 	case 3: out_abi = "SPE"; break;
   4638      1.1  christos 	}
   4639      1.1  christos 
   4640      1.1  christos       out_attr->type = 1;
   4641      1.1  christos       if (out_attr->i == 0)
   4642      1.1  christos 	out_attr->i = in_attr->i;
   4643      1.1  christos       else if (in_attr->i == 0)
   4644      1.1  christos 	;
   4645      1.1  christos       /* For now, allow generic to transition to AltiVec or SPE
   4646      1.1  christos 	 without a warning.  If GCC marked files with their stack
   4647      1.1  christos 	 alignment and used don't-care markings for files which are
   4648      1.1  christos 	 not affected by the vector ABI, we could warn about this
   4649      1.1  christos 	 case too.  */
   4650      1.1  christos       else if (out_attr->i == 1)
   4651      1.1  christos 	out_attr->i = in_attr->i;
   4652      1.1  christos       else if (in_attr->i == 1)
   4653      1.1  christos 	;
   4654      1.1  christos       else if (in_abi == NULL)
   4655      1.1  christos 	_bfd_error_handler
   4656      1.1  christos 	  (_("Warning: %B uses unknown vector ABI %d"), ibfd,
   4657      1.1  christos 	   in_attr->i);
   4658      1.1  christos       else if (out_abi == NULL)
   4659      1.1  christos 	_bfd_error_handler
   4660      1.1  christos 	  (_("Warning: %B uses unknown vector ABI %d"), obfd,
   4661      1.1  christos 	   in_attr->i);
   4662      1.1  christos       else
   4663      1.1  christos 	_bfd_error_handler
   4664      1.1  christos 	  (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
   4665      1.1  christos 	   ibfd, obfd, in_abi, out_abi);
   4666      1.1  christos     }
   4667      1.1  christos 
   4668      1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
   4669      1.1  christos      and merge non-conflicting ones.  */
   4670      1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4671      1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4672      1.1  christos   if (in_attr->i != out_attr->i)
   4673      1.1  christos     {
   4674      1.1  christos       out_attr->type = 1;
   4675      1.1  christos       if (out_attr->i == 0)
   4676      1.1  christos        out_attr->i = in_attr->i;
   4677      1.1  christos       else if (in_attr->i == 0)
   4678      1.1  christos        ;
   4679      1.1  christos       else if (out_attr->i == 1 && in_attr->i == 2)
   4680      1.1  christos        _bfd_error_handler
   4681      1.1  christos          (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
   4682      1.1  christos       else if (out_attr->i == 2 && in_attr->i == 1)
   4683      1.1  christos        _bfd_error_handler
   4684      1.1  christos          (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
   4685      1.1  christos       else if (in_attr->i > 2)
   4686      1.1  christos        _bfd_error_handler
   4687      1.1  christos          (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
   4688      1.1  christos           in_attr->i);
   4689      1.1  christos       else
   4690      1.1  christos        _bfd_error_handler
   4691      1.1  christos          (_("Warning: %B uses unknown small structure return convention %d"), obfd,
   4692      1.1  christos           out_attr->i);
   4693      1.1  christos     }
   4694      1.1  christos 
   4695      1.1  christos   /* Merge Tag_compatibility attributes and any common GNU ones.  */
   4696      1.1  christos   _bfd_elf_merge_object_attributes (ibfd, obfd);
   4697      1.1  christos 
   4698      1.1  christos   return TRUE;
   4699      1.1  christos }
   4700      1.1  christos 
   4701      1.1  christos /* Merge backend specific data from an object file to the output
   4702      1.1  christos    object file when linking.  */
   4703      1.1  christos 
   4704      1.1  christos static bfd_boolean
   4705      1.1  christos ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
   4706      1.1  christos {
   4707      1.1  christos   flagword old_flags;
   4708      1.1  christos   flagword new_flags;
   4709      1.1  christos   bfd_boolean error;
   4710      1.1  christos 
   4711      1.1  christos   if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
   4712      1.1  christos     return TRUE;
   4713      1.1  christos 
   4714      1.1  christos   /* Check if we have the same endianness.  */
   4715      1.1  christos   if (! _bfd_generic_verify_endian_match (ibfd, obfd))
   4716      1.1  christos     return FALSE;
   4717      1.1  christos 
   4718      1.1  christos   if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
   4719      1.1  christos     return FALSE;
   4720      1.1  christos 
   4721      1.1  christos   new_flags = elf_elfheader (ibfd)->e_flags;
   4722      1.1  christos   old_flags = elf_elfheader (obfd)->e_flags;
   4723      1.1  christos   if (!elf_flags_init (obfd))
   4724      1.1  christos     {
   4725      1.1  christos       /* First call, no flags set.  */
   4726      1.1  christos       elf_flags_init (obfd) = TRUE;
   4727      1.1  christos       elf_elfheader (obfd)->e_flags = new_flags;
   4728      1.1  christos     }
   4729      1.1  christos 
   4730      1.1  christos   /* Compatible flags are ok.  */
   4731      1.1  christos   else if (new_flags == old_flags)
   4732      1.1  christos     ;
   4733      1.1  christos 
   4734      1.1  christos   /* Incompatible flags.  */
   4735      1.1  christos   else
   4736      1.1  christos     {
   4737      1.1  christos       /* Warn about -mrelocatable mismatch.  Allow -mrelocatable-lib
   4738      1.1  christos 	 to be linked with either.  */
   4739      1.1  christos       error = FALSE;
   4740      1.1  christos       if ((new_flags & EF_PPC_RELOCATABLE) != 0
   4741      1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
   4742      1.1  christos 	{
   4743      1.1  christos 	  error = TRUE;
   4744      1.1  christos 	  (*_bfd_error_handler)
   4745      1.1  christos 	    (_("%B: compiled with -mrelocatable and linked with "
   4746      1.1  christos 	       "modules compiled normally"), ibfd);
   4747      1.1  christos 	}
   4748      1.1  christos       else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
   4749      1.1  christos 	       && (old_flags & EF_PPC_RELOCATABLE) != 0)
   4750      1.1  christos 	{
   4751      1.1  christos 	  error = TRUE;
   4752      1.1  christos 	  (*_bfd_error_handler)
   4753      1.1  christos 	    (_("%B: compiled normally and linked with "
   4754      1.1  christos 	       "modules compiled with -mrelocatable"), ibfd);
   4755      1.1  christos 	}
   4756      1.1  christos 
   4757      1.1  christos       /* The output is -mrelocatable-lib iff both the input files are.  */
   4758      1.1  christos       if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
   4759      1.1  christos 	elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
   4760      1.1  christos 
   4761      1.1  christos       /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
   4762      1.1  christos 	 but each input file is either -mrelocatable or -mrelocatable-lib.  */
   4763      1.1  christos       if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
   4764      1.1  christos 	  && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
   4765      1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
   4766      1.1  christos 	elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
   4767      1.1  christos 
   4768      1.1  christos       /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
   4769      1.1  christos 	 any module uses it.  */
   4770      1.1  christos       elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
   4771      1.1  christos 
   4772      1.1  christos       new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   4773      1.1  christos       old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   4774      1.1  christos 
   4775      1.1  christos       /* Warn about any other mismatches.  */
   4776      1.1  christos       if (new_flags != old_flags)
   4777      1.1  christos 	{
   4778      1.1  christos 	  error = TRUE;
   4779      1.1  christos 	  (*_bfd_error_handler)
   4780      1.1  christos 	    (_("%B: uses different e_flags (0x%lx) fields "
   4781      1.1  christos 	       "than previous modules (0x%lx)"),
   4782      1.1  christos 	     ibfd, (long) new_flags, (long) old_flags);
   4783      1.1  christos 	}
   4784      1.1  christos 
   4785      1.1  christos       if (error)
   4786      1.1  christos 	{
   4787      1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   4788      1.3  christos 	  return FALSE;
   4789      1.3  christos 	}
   4790      1.3  christos     }
   4791      1.1  christos 
   4792      1.1  christos   return TRUE;
   4793      1.3  christos }
   4794      1.1  christos 
   4795      1.3  christos static void
   4796      1.3  christos ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc,
   4797      1.3  christos 		     bfd_vma value,
   4798      1.1  christos 		     split16_format_type split16_format)
   4799      1.3  christos 
   4800      1.3  christos {
   4801      1.1  christos   unsigned int insn, top5;
   4802      1.1  christos 
   4803      1.1  christos   insn = bfd_get_32 (output_bfd, loc);
   4804      1.1  christos   top5 = value & 0xf800;
   4805      1.1  christos   top5 = top5 << (split16_format == split16a_type ? 9 : 5);
   4806      1.1  christos   insn |= top5;
   4807      1.1  christos   insn |= value & 0x7ff;
   4808      1.3  christos   bfd_put_32 (output_bfd, insn, loc);
   4809      1.1  christos }
   4810      1.1  christos 
   4811      1.1  christos 
   4812      1.1  christos /* Choose which PLT scheme to use, and set .plt flags appropriately.
   4814      1.1  christos    Returns -1 on error, 0 for old PLT, 1 for new PLT.  */
   4815      1.1  christos int
   4816      1.1  christos ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
   4817      1.1  christos 			   struct bfd_link_info *info)
   4818      1.1  christos {
   4819      1.3  christos   struct ppc_elf_link_hash_table *htab;
   4820      1.1  christos   flagword flags;
   4821      1.1  christos 
   4822      1.1  christos   htab = ppc_elf_hash_table (info);
   4823      1.1  christos 
   4824      1.1  christos   if (htab->plt_type == PLT_UNSET)
   4825      1.1  christos     {
   4826      1.1  christos       struct elf_link_hash_entry *h;
   4827      1.1  christos 
   4828      1.1  christos       if (htab->params->plt_style == PLT_OLD)
   4829      1.1  christos 	htab->plt_type = PLT_OLD;
   4830      1.1  christos       else if (info->shared
   4831      1.1  christos 	       && htab->elf.dynamic_sections_created
   4832      1.1  christos 	       && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
   4833      1.1  christos 					     FALSE, FALSE, TRUE)) != NULL
   4834      1.1  christos 	       && (h->type == STT_FUNC
   4835      1.1  christos 		   || h->needs_plt)
   4836      1.1  christos 	       && h->ref_regular
   4837      1.1  christos 	       && !(SYMBOL_CALLS_LOCAL (info, h)
   4838      1.1  christos 		    || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   4839      1.1  christos 			&& h->root.type == bfd_link_hash_undefweak)))
   4840      1.1  christos 	{
   4841      1.3  christos 	  /* Profiling of shared libs (and pies) is not supported with
   4842      1.1  christos 	     secure plt, because ppc32 does profiling before a
   4843      1.1  christos 	     function prologue and a secure plt pic call stubs needs
   4844      1.1  christos 	     r30 to be set up.  */
   4845      1.1  christos 	  htab->plt_type = PLT_OLD;
   4846      1.1  christos 	}
   4847      1.1  christos       else
   4848      1.1  christos 	{
   4849      1.3  christos 	  bfd *ibfd;
   4850      1.1  christos 	  enum ppc_elf_plt_type plt_type = htab->params->plt_style;
   4851      1.1  christos 
   4852      1.1  christos 	  /* Look through the reloc flags left by ppc_elf_check_relocs.
   4853      1.1  christos 	     Use the old style bss plt if a file makes plt calls
   4854      1.1  christos 	     without using the new relocs, and if ld isn't given
   4855      1.1  christos 	     --secure-plt and we never see REL16 relocs.  */
   4856      1.1  christos 	  if (plt_type == PLT_UNSET)
   4857      1.1  christos 	    plt_type = PLT_OLD;
   4858      1.1  christos 	  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
   4859      1.1  christos 	    if (is_ppc_elf (ibfd))
   4860      1.1  christos 	      {
   4861      1.1  christos 		if (ppc_elf_tdata (ibfd)->has_rel16)
   4862      1.1  christos 		  plt_type = PLT_NEW;
   4863      1.1  christos 		else if (ppc_elf_tdata (ibfd)->makes_plt_call)
   4864      1.3  christos 		  {
   4865      1.1  christos 		    plt_type = PLT_OLD;
   4866      1.1  christos 		    htab->old_bfd = ibfd;
   4867      1.1  christos 		    break;
   4868      1.1  christos 		  }
   4869      1.1  christos 	      }
   4870      1.1  christos 	  htab->plt_type = plt_type;
   4871      1.1  christos 	}
   4872      1.1  christos     }
   4873      1.1  christos   if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
   4874      1.1  christos     {
   4875      1.1  christos       if (htab->old_bfd != NULL)
   4876      1.1  christos 	info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
   4877      1.1  christos 				htab->old_bfd);
   4878      1.1  christos       else
   4879      1.1  christos 	info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
   4880      1.1  christos     }
   4881      1.1  christos 
   4882      1.1  christos   BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
   4883      1.1  christos 
   4884      1.1  christos   if (htab->plt_type == PLT_NEW)
   4885      1.1  christos     {
   4886      1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
   4887      1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   4888      1.1  christos 
   4889      1.1  christos       /* The new PLT is a loaded section.  */
   4890      1.1  christos       if (htab->plt != NULL
   4891      1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
   4892      1.1  christos 	return -1;
   4893      1.1  christos 
   4894      1.1  christos       /* The new GOT is not executable.  */
   4895      1.1  christos       if (htab->got != NULL
   4896      1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
   4897      1.1  christos 	return -1;
   4898      1.1  christos     }
   4899      1.1  christos   else
   4900      1.1  christos     {
   4901      1.1  christos       /* Stop an unused .glink section from affecting .text alignment.  */
   4902      1.1  christos       if (htab->glink != NULL
   4903      1.1  christos 	  && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
   4904      1.1  christos 	return -1;
   4905      1.1  christos     }
   4906      1.1  christos   return htab->plt_type == PLT_NEW;
   4907      1.1  christos }
   4908      1.1  christos 
   4909      1.1  christos /* Return the section that should be marked against GC for a given
   4911      1.1  christos    relocation.  */
   4912      1.1  christos 
   4913      1.1  christos static asection *
   4914      1.1  christos ppc_elf_gc_mark_hook (asection *sec,
   4915      1.1  christos 		      struct bfd_link_info *info,
   4916      1.1  christos 		      Elf_Internal_Rela *rel,
   4917      1.1  christos 		      struct elf_link_hash_entry *h,
   4918      1.1  christos 		      Elf_Internal_Sym *sym)
   4919      1.1  christos {
   4920      1.1  christos   if (h != NULL)
   4921      1.1  christos     switch (ELF32_R_TYPE (rel->r_info))
   4922      1.1  christos       {
   4923      1.1  christos       case R_PPC_GNU_VTINHERIT:
   4924      1.1  christos       case R_PPC_GNU_VTENTRY:
   4925      1.1  christos 	return NULL;
   4926      1.1  christos       }
   4927      1.1  christos 
   4928      1.1  christos   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
   4929      1.1  christos }
   4930      1.1  christos 
   4931      1.1  christos /* Update the got, plt and dynamic reloc reference counts for the
   4932      1.1  christos    section being removed.  */
   4933      1.1  christos 
   4934      1.1  christos static bfd_boolean
   4935      1.1  christos ppc_elf_gc_sweep_hook (bfd *abfd,
   4936      1.1  christos 		       struct bfd_link_info *info,
   4937      1.1  christos 		       asection *sec,
   4938      1.1  christos 		       const Elf_Internal_Rela *relocs)
   4939      1.1  christos {
   4940      1.1  christos   struct ppc_elf_link_hash_table *htab;
   4941      1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   4942      1.1  christos   struct elf_link_hash_entry **sym_hashes;
   4943      1.1  christos   bfd_signed_vma *local_got_refcounts;
   4944      1.1  christos   const Elf_Internal_Rela *rel, *relend;
   4945      1.1  christos   asection *got2;
   4946      1.1  christos 
   4947      1.1  christos   if (info->relocatable)
   4948      1.1  christos     return TRUE;
   4949      1.1  christos 
   4950      1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   4951      1.1  christos     return TRUE;
   4952      1.1  christos 
   4953      1.1  christos   elf_section_data (sec)->local_dynrel = NULL;
   4954      1.1  christos 
   4955      1.1  christos   htab = ppc_elf_hash_table (info);
   4956      1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   4957      1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   4958      1.1  christos   local_got_refcounts = elf_local_got_refcounts (abfd);
   4959      1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   4960      1.1  christos 
   4961      1.1  christos   relend = relocs + sec->reloc_count;
   4962      1.1  christos   for (rel = relocs; rel < relend; rel++)
   4963      1.1  christos     {
   4964      1.1  christos       unsigned long r_symndx;
   4965      1.1  christos       enum elf_ppc_reloc_type r_type;
   4966      1.1  christos       struct elf_link_hash_entry *h = NULL;
   4967      1.1  christos 
   4968      1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   4969      1.1  christos       if (r_symndx >= symtab_hdr->sh_info)
   4970      1.1  christos 	{
   4971      1.1  christos 	  struct elf_dyn_relocs **pp, *p;
   4972      1.1  christos 	  struct ppc_elf_link_hash_entry *eh;
   4973      1.1  christos 
   4974      1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   4975      1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   4976      1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   4977      1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   4978      1.1  christos 	  eh = (struct ppc_elf_link_hash_entry *) h;
   4979      1.1  christos 
   4980      1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
   4981      1.1  christos 	    if (p->sec == sec)
   4982      1.1  christos 	      {
   4983      1.1  christos 		/* Everything must go for SEC.  */
   4984      1.1  christos 		*pp = p->next;
   4985      1.1  christos 		break;
   4986      1.1  christos 	      }
   4987      1.1  christos 	}
   4988      1.1  christos 
   4989      1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   4990      1.1  christos       if (!htab->is_vxworks
   4991      1.1  christos 	  && h == NULL
   4992      1.1  christos 	  && local_got_refcounts != NULL
   4993      1.1  christos 	  && (!info->shared
   4994      1.1  christos 	      || is_branch_reloc (r_type)))
   4995      1.1  christos 	{
   4996      1.1  christos 	  struct plt_entry **local_plt = (struct plt_entry **)
   4997      1.1  christos 	    (local_got_refcounts + symtab_hdr->sh_info);
   4998      1.1  christos 	  char *local_got_tls_masks = (char *)
   4999      1.1  christos 	    (local_plt + symtab_hdr->sh_info);
   5000      1.1  christos 	  if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
   5001      1.1  christos 	    {
   5002      1.1  christos 	      struct plt_entry **ifunc = local_plt + r_symndx;
   5003      1.1  christos 	      bfd_vma addend = 0;
   5004      1.1  christos 	      struct plt_entry *ent;
   5005      1.1  christos 
   5006      1.1  christos 	      if (r_type == R_PPC_PLTREL24 && info->shared)
   5007      1.1  christos 		addend = rel->r_addend;
   5008      1.1  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   5009      1.1  christos 	      if (ent->plt.refcount > 0)
   5010      1.1  christos 		ent->plt.refcount -= 1;
   5011      1.1  christos 	      continue;
   5012      1.1  christos 	    }
   5013      1.1  christos 	}
   5014      1.1  christos 
   5015      1.1  christos       switch (r_type)
   5016      1.1  christos 	{
   5017      1.1  christos 	case R_PPC_GOT_TLSLD16:
   5018      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   5019      1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   5020      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   5021      1.1  christos 	case R_PPC_GOT_TLSGD16:
   5022      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   5023      1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   5024      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   5025      1.1  christos 	case R_PPC_GOT_TPREL16:
   5026      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   5027      1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   5028      1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   5029      1.1  christos 	case R_PPC_GOT_DTPREL16:
   5030      1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   5031      1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   5032      1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   5033      1.1  christos 	case R_PPC_GOT16:
   5034      1.1  christos 	case R_PPC_GOT16_LO:
   5035      1.1  christos 	case R_PPC_GOT16_HI:
   5036      1.1  christos 	case R_PPC_GOT16_HA:
   5037      1.1  christos 	  if (h != NULL)
   5038      1.1  christos 	    {
   5039      1.1  christos 	      if (h->got.refcount > 0)
   5040      1.1  christos 		h->got.refcount--;
   5041      1.1  christos 	      if (!info->shared)
   5042      1.1  christos 		{
   5043      1.1  christos 		  struct plt_entry *ent;
   5044      1.1  christos 
   5045      1.1  christos 		  ent = find_plt_ent (&h->plt.plist, NULL, 0);
   5046      1.1  christos 		  if (ent != NULL && ent->plt.refcount > 0)
   5047      1.1  christos 		    ent->plt.refcount -= 1;
   5048      1.1  christos 		}
   5049      1.1  christos 	    }
   5050      1.1  christos 	  else if (local_got_refcounts != NULL)
   5051      1.1  christos 	    {
   5052      1.1  christos 	      if (local_got_refcounts[r_symndx] > 0)
   5053      1.1  christos 		local_got_refcounts[r_symndx]--;
   5054      1.1  christos 	    }
   5055      1.1  christos 	  break;
   5056      1.1  christos 
   5057      1.1  christos 	case R_PPC_REL24:
   5058      1.1  christos 	case R_PPC_REL14:
   5059      1.1  christos 	case R_PPC_REL14_BRTAKEN:
   5060      1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   5061      1.1  christos 	case R_PPC_REL32:
   5062      1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   5063      1.1  christos 	    break;
   5064      1.1  christos 	  /* Fall thru */
   5065      1.1  christos 
   5066      1.1  christos 	case R_PPC_ADDR32:
   5067      1.1  christos 	case R_PPC_ADDR24:
   5068      1.1  christos 	case R_PPC_ADDR16:
   5069      1.1  christos 	case R_PPC_ADDR16_LO:
   5070      1.1  christos 	case R_PPC_ADDR16_HI:
   5071      1.1  christos 	case R_PPC_ADDR16_HA:
   5072      1.1  christos 	case R_PPC_ADDR14:
   5073      1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   5074      1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   5075      1.1  christos 	case R_PPC_UADDR32:
   5076      1.1  christos 	case R_PPC_UADDR16:
   5077      1.1  christos 	  if (info->shared)
   5078      1.1  christos 	    break;
   5079      1.1  christos 
   5080      1.1  christos 	case R_PPC_PLT32:
   5081      1.1  christos 	case R_PPC_PLTREL24:
   5082      1.1  christos 	case R_PPC_PLTREL32:
   5083      1.1  christos 	case R_PPC_PLT16_LO:
   5084      1.1  christos 	case R_PPC_PLT16_HI:
   5085      1.1  christos 	case R_PPC_PLT16_HA:
   5086      1.1  christos 	  if (h != NULL)
   5087      1.1  christos 	    {
   5088      1.1  christos 	      bfd_vma addend = 0;
   5089      1.1  christos 	      struct plt_entry *ent;
   5090      1.1  christos 
   5091      1.1  christos 	      if (r_type == R_PPC_PLTREL24 && info->shared)
   5092      1.1  christos 		addend = rel->r_addend;
   5093      1.1  christos 	      ent = find_plt_ent (&h->plt.plist, got2, addend);
   5094      1.1  christos 	      if (ent != NULL && ent->plt.refcount > 0)
   5095      1.1  christos 		ent->plt.refcount -= 1;
   5096      1.1  christos 	    }
   5097      1.1  christos 	  break;
   5098      1.1  christos 
   5099      1.1  christos 	default:
   5100      1.3  christos 	  break;
   5101      1.1  christos 	}
   5102      1.1  christos     }
   5103      1.1  christos   return TRUE;
   5104      1.1  christos }
   5105      1.1  christos 
   5106      1.1  christos /* Set plt output section type, htab->tls_get_addr, and call the
   5108  1.3.2.1  pgoyette    generic ELF tls_setup function.  */
   5109  1.3.2.1  pgoyette 
   5110      1.3  christos asection *
   5111      1.1  christos ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
   5112      1.1  christos {
   5113      1.1  christos   struct ppc_elf_link_hash_table *htab;
   5114      1.1  christos 
   5115      1.1  christos   htab = ppc_elf_hash_table (info);
   5116      1.1  christos   htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   5117      1.1  christos 					     FALSE, FALSE, TRUE);
   5118      1.1  christos   if (htab->plt_type != PLT_NEW)
   5119      1.1  christos     htab->params->no_tls_get_addr_opt = TRUE;
   5120      1.1  christos 
   5121      1.1  christos   if (!htab->params->no_tls_get_addr_opt)
   5122      1.1  christos     {
   5123      1.1  christos       struct elf_link_hash_entry *opt, *tga;
   5124      1.1  christos       opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
   5125      1.1  christos 				  FALSE, FALSE, TRUE);
   5126      1.1  christos       if (opt != NULL
   5127      1.1  christos 	  && (opt->root.type == bfd_link_hash_defined
   5128      1.1  christos 	      || opt->root.type == bfd_link_hash_defweak))
   5129      1.1  christos 	{
   5130      1.1  christos 	  /* If glibc supports an optimized __tls_get_addr call stub,
   5131      1.1  christos 	     signalled by the presence of __tls_get_addr_opt, and we'll
   5132      1.1  christos 	     be calling __tls_get_addr via a plt call stub, then
   5133      1.1  christos 	     make __tls_get_addr point to __tls_get_addr_opt.  */
   5134      1.1  christos 	  tga = htab->tls_get_addr;
   5135      1.1  christos 	  if (htab->elf.dynamic_sections_created
   5136      1.1  christos 	      && tga != NULL
   5137      1.1  christos 	      && (tga->type == STT_FUNC
   5138      1.1  christos 		  || tga->needs_plt)
   5139      1.1  christos 	      && !(SYMBOL_CALLS_LOCAL (info, tga)
   5140      1.1  christos 		   || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
   5141      1.1  christos 		       && tga->root.type == bfd_link_hash_undefweak)))
   5142      1.1  christos 	    {
   5143      1.1  christos 	      struct plt_entry *ent;
   5144      1.1  christos 	      for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
   5145      1.1  christos 		if (ent->plt.refcount > 0)
   5146      1.1  christos 		  break;
   5147      1.1  christos 	      if (ent != NULL)
   5148      1.1  christos 		{
   5149      1.1  christos 		  tga->root.type = bfd_link_hash_indirect;
   5150      1.1  christos 		  tga->root.u.i.link = &opt->root;
   5151      1.1  christos 		  ppc_elf_copy_indirect_symbol (info, opt, tga);
   5152      1.1  christos 		  if (opt->dynindx != -1)
   5153      1.1  christos 		    {
   5154      1.1  christos 		      /* Use __tls_get_addr_opt in dynamic relocations.  */
   5155      1.3  christos 		      opt->dynindx = -1;
   5156      1.1  christos 		      _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   5157      1.1  christos 					      opt->dynstr_index);
   5158      1.1  christos 		      if (!bfd_elf_link_record_dynamic_symbol (info, opt))
   5159      1.1  christos 			return FALSE;
   5160      1.1  christos 		    }
   5161      1.1  christos 		  htab->tls_get_addr = opt;
   5162      1.1  christos 		}
   5163      1.1  christos 	    }
   5164      1.1  christos 	}
   5165      1.1  christos       else
   5166      1.1  christos 	htab->params->no_tls_get_addr_opt = TRUE;
   5167      1.1  christos     }
   5168      1.1  christos   if (htab->plt_type == PLT_NEW
   5169      1.1  christos       && htab->plt != NULL
   5170      1.1  christos       && htab->plt->output_section != NULL)
   5171      1.1  christos     {
   5172      1.1  christos       elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
   5173      1.1  christos       elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
   5174      1.1  christos     }
   5175      1.1  christos 
   5176      1.1  christos   return _bfd_elf_tls_setup (obfd, info);
   5177      1.1  christos }
   5178      1.1  christos 
   5179      1.1  christos /* Return TRUE iff REL is a branch reloc with a global symbol matching
   5180      1.1  christos    HASH.  */
   5181      1.1  christos 
   5182      1.1  christos static bfd_boolean
   5183      1.1  christos branch_reloc_hash_match (const bfd *ibfd,
   5184      1.1  christos 			 const Elf_Internal_Rela *rel,
   5185      1.1  christos 			 const struct elf_link_hash_entry *hash)
   5186      1.1  christos {
   5187      1.1  christos   Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5188      1.1  christos   enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
   5189      1.1  christos   unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
   5190      1.1  christos 
   5191      1.1  christos   if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
   5192      1.1  christos     {
   5193      1.1  christos       struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
   5194      1.1  christos       struct elf_link_hash_entry *h;
   5195      1.1  christos 
   5196      1.1  christos       h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5197      1.1  christos       while (h->root.type == bfd_link_hash_indirect
   5198      1.1  christos 	     || h->root.type == bfd_link_hash_warning)
   5199      1.1  christos 	h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5200      1.1  christos       if (h == hash)
   5201      1.1  christos 	return TRUE;
   5202      1.1  christos     }
   5203      1.1  christos   return FALSE;
   5204      1.1  christos }
   5205      1.1  christos 
   5206      1.1  christos /* Run through all the TLS relocs looking for optimization
   5207      1.1  christos    opportunities.  */
   5208      1.1  christos 
   5209      1.1  christos bfd_boolean
   5210      1.1  christos ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
   5211      1.1  christos 		      struct bfd_link_info *info)
   5212      1.1  christos {
   5213      1.1  christos   bfd *ibfd;
   5214      1.1  christos   asection *sec;
   5215      1.1  christos   struct ppc_elf_link_hash_table *htab;
   5216      1.1  christos   int pass;
   5217      1.1  christos 
   5218      1.1  christos   if (info->relocatable || !info->executable)
   5219      1.1  christos     return TRUE;
   5220      1.1  christos 
   5221      1.3  christos   htab = ppc_elf_hash_table (info);
   5222      1.1  christos   if (htab == NULL)
   5223      1.1  christos     return FALSE;
   5224      1.1  christos 
   5225      1.1  christos   /* Make two passes through the relocs.  First time check that tls
   5226      1.1  christos      relocs involved in setting up a tls_get_addr call are indeed
   5227      1.1  christos      followed by such a call.  If they are not, don't do any tls
   5228      1.1  christos      optimization.  On the second pass twiddle tls_mask flags to
   5229      1.1  christos      notify relocate_section that optimization can be done, and
   5230      1.1  christos      adjust got and plt refcounts.  */
   5231      1.1  christos   for (pass = 0; pass < 2; ++pass)
   5232      1.1  christos     for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   5233      1.1  christos       {
   5234      1.1  christos 	Elf_Internal_Sym *locsyms = NULL;
   5235      1.1  christos 	Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5236      1.1  christos 	asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
   5237      1.1  christos 
   5238      1.1  christos 	for (sec = ibfd->sections; sec != NULL; sec = sec->next)
   5239      1.1  christos 	  if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
   5240      1.1  christos 	    {
   5241      1.1  christos 	      Elf_Internal_Rela *relstart, *rel, *relend;
   5242      1.1  christos 	      int expecting_tls_get_addr = 0;
   5243      1.1  christos 
   5244      1.1  christos 	      /* Read the relocations.  */
   5245      1.1  christos 	      relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
   5246      1.1  christos 						    info->keep_memory);
   5247      1.1  christos 	      if (relstart == NULL)
   5248      1.1  christos 		return FALSE;
   5249      1.1  christos 
   5250      1.1  christos 	      relend = relstart + sec->reloc_count;
   5251      1.1  christos 	      for (rel = relstart; rel < relend; rel++)
   5252      1.1  christos 		{
   5253      1.1  christos 		  enum elf_ppc_reloc_type r_type;
   5254      1.1  christos 		  unsigned long r_symndx;
   5255      1.1  christos 		  struct elf_link_hash_entry *h = NULL;
   5256      1.1  christos 		  char *tls_mask;
   5257      1.1  christos 		  char tls_set, tls_clear;
   5258      1.1  christos 		  bfd_boolean is_local;
   5259      1.1  christos 		  bfd_signed_vma *got_count;
   5260      1.1  christos 
   5261      1.1  christos 		  r_symndx = ELF32_R_SYM (rel->r_info);
   5262      1.1  christos 		  if (r_symndx >= symtab_hdr->sh_info)
   5263      1.1  christos 		    {
   5264      1.1  christos 		      struct elf_link_hash_entry **sym_hashes;
   5265      1.1  christos 
   5266      1.1  christos 		      sym_hashes = elf_sym_hashes (ibfd);
   5267      1.1  christos 		      h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5268      1.1  christos 		      while (h->root.type == bfd_link_hash_indirect
   5269      1.1  christos 			     || h->root.type == bfd_link_hash_warning)
   5270      1.1  christos 			h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5271      1.1  christos 		    }
   5272      1.1  christos 
   5273      1.1  christos 		  is_local = FALSE;
   5274      1.1  christos 		  if (h == NULL
   5275      1.1  christos 		      || !h->def_dynamic)
   5276      1.1  christos 		    is_local = TRUE;
   5277      1.1  christos 
   5278      1.1  christos 		  r_type = ELF32_R_TYPE (rel->r_info);
   5279      1.1  christos 		  /* If this section has old-style __tls_get_addr calls
   5280      1.1  christos 		     without marker relocs, then check that each
   5281      1.1  christos 		     __tls_get_addr call reloc is preceded by a reloc
   5282      1.1  christos 		     that conceivably belongs to the __tls_get_addr arg
   5283      1.1  christos 		     setup insn.  If we don't find matching arg setup
   5284      1.1  christos 		     relocs, don't do any tls optimization.  */
   5285      1.1  christos 		  if (pass == 0
   5286      1.1  christos 		      && sec->has_tls_get_addr_call
   5287      1.1  christos 		      && h != NULL
   5288      1.1  christos 		      && h == htab->tls_get_addr
   5289      1.1  christos 		      && !expecting_tls_get_addr
   5290      1.1  christos 		      && is_branch_reloc (r_type))
   5291      1.1  christos 		    {
   5292      1.1  christos 		      info->callbacks->minfo ("%H __tls_get_addr lost arg, "
   5293      1.1  christos 					      "TLS optimization disabled\n",
   5294      1.1  christos 					      ibfd, sec, rel->r_offset);
   5295      1.1  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5296      1.1  christos 			free (relstart);
   5297      1.1  christos 		      return TRUE;
   5298      1.1  christos 		    }
   5299      1.1  christos 
   5300      1.1  christos 		  expecting_tls_get_addr = 0;
   5301      1.1  christos 		  switch (r_type)
   5302      1.1  christos 		    {
   5303      1.1  christos 		    case R_PPC_GOT_TLSLD16:
   5304      1.1  christos 		    case R_PPC_GOT_TLSLD16_LO:
   5305      1.1  christos 		      expecting_tls_get_addr = 1;
   5306      1.1  christos 		      /* Fall thru */
   5307      1.1  christos 
   5308      1.1  christos 		    case R_PPC_GOT_TLSLD16_HI:
   5309      1.1  christos 		    case R_PPC_GOT_TLSLD16_HA:
   5310      1.1  christos 		      /* These relocs should never be against a symbol
   5311      1.1  christos 			 defined in a shared lib.  Leave them alone if
   5312      1.1  christos 			 that turns out to be the case.  */
   5313      1.1  christos 		      if (!is_local)
   5314      1.1  christos 			continue;
   5315      1.1  christos 
   5316      1.1  christos 		      /* LD -> LE */
   5317      1.1  christos 		      tls_set = 0;
   5318      1.1  christos 		      tls_clear = TLS_LD;
   5319      1.1  christos 		      break;
   5320      1.1  christos 
   5321      1.1  christos 		    case R_PPC_GOT_TLSGD16:
   5322      1.1  christos 		    case R_PPC_GOT_TLSGD16_LO:
   5323      1.1  christos 		      expecting_tls_get_addr = 1;
   5324      1.1  christos 		      /* Fall thru */
   5325      1.1  christos 
   5326      1.1  christos 		    case R_PPC_GOT_TLSGD16_HI:
   5327      1.1  christos 		    case R_PPC_GOT_TLSGD16_HA:
   5328      1.1  christos 		      if (is_local)
   5329      1.1  christos 			/* GD -> LE */
   5330      1.1  christos 			tls_set = 0;
   5331      1.1  christos 		      else
   5332      1.1  christos 			/* GD -> IE */
   5333      1.1  christos 			tls_set = TLS_TLS | TLS_TPRELGD;
   5334      1.1  christos 		      tls_clear = TLS_GD;
   5335      1.1  christos 		      break;
   5336      1.1  christos 
   5337      1.1  christos 		    case R_PPC_GOT_TPREL16:
   5338      1.1  christos 		    case R_PPC_GOT_TPREL16_LO:
   5339      1.1  christos 		    case R_PPC_GOT_TPREL16_HI:
   5340      1.1  christos 		    case R_PPC_GOT_TPREL16_HA:
   5341      1.1  christos 		      if (is_local)
   5342      1.1  christos 			{
   5343      1.1  christos 			  /* IE -> LE */
   5344      1.1  christos 			  tls_set = 0;
   5345      1.1  christos 			  tls_clear = TLS_TPREL;
   5346      1.1  christos 			  break;
   5347      1.1  christos 			}
   5348      1.1  christos 		      else
   5349      1.1  christos 			continue;
   5350      1.1  christos 
   5351      1.1  christos 		    case R_PPC_TLSGD:
   5352      1.1  christos 		    case R_PPC_TLSLD:
   5353      1.1  christos 		      expecting_tls_get_addr = 2;
   5354      1.1  christos 		      tls_set = 0;
   5355      1.1  christos 		      tls_clear = 0;
   5356      1.1  christos 		      break;
   5357      1.1  christos 
   5358      1.1  christos 		    default:
   5359      1.1  christos 		      continue;
   5360      1.1  christos 		    }
   5361      1.1  christos 
   5362      1.1  christos 		  if (pass == 0)
   5363      1.1  christos 		    {
   5364      1.1  christos 		      if (!expecting_tls_get_addr
   5365      1.1  christos 			  || (expecting_tls_get_addr == 1
   5366      1.1  christos 			      && !sec->has_tls_get_addr_call))
   5367      1.1  christos 			continue;
   5368      1.1  christos 
   5369      1.1  christos 		      if (rel + 1 < relend
   5370      1.1  christos 			  && branch_reloc_hash_match (ibfd, rel + 1,
   5371      1.1  christos 						      htab->tls_get_addr))
   5372      1.1  christos 			continue;
   5373      1.1  christos 
   5374      1.1  christos 		      /* Uh oh, we didn't find the expected call.  We
   5375      1.1  christos 			 could just mark this symbol to exclude it
   5376      1.1  christos 			 from tls optimization but it's safer to skip
   5377      1.1  christos 			 the entire optimization.  */
   5378      1.1  christos 		      info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
   5379      1.1  christos 						"TLS optimization disabled\n"),
   5380      1.1  christos 					      ibfd, sec, rel->r_offset);
   5381      1.1  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5382      1.1  christos 			free (relstart);
   5383      1.1  christos 		      return TRUE;
   5384      1.1  christos 		    }
   5385      1.1  christos 
   5386      1.1  christos 		  if (expecting_tls_get_addr)
   5387      1.1  christos 		    {
   5388      1.1  christos 		      struct plt_entry *ent;
   5389      1.1  christos 		      bfd_vma addend = 0;
   5390      1.1  christos 
   5391      1.1  christos 		      if (info->shared
   5392      1.1  christos 			  && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
   5393      1.1  christos 			addend = rel[1].r_addend;
   5394      1.1  christos 		      ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
   5395      1.1  christos 					  got2, addend);
   5396      1.1  christos 		      if (ent != NULL && ent->plt.refcount > 0)
   5397      1.1  christos 			ent->plt.refcount -= 1;
   5398      1.1  christos 
   5399      1.1  christos 		      if (expecting_tls_get_addr == 2)
   5400      1.1  christos 			continue;
   5401      1.1  christos 		    }
   5402      1.1  christos 
   5403      1.1  christos 		  if (h != NULL)
   5404      1.1  christos 		    {
   5405      1.1  christos 		      tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
   5406      1.1  christos 		      got_count = &h->got.refcount;
   5407      1.1  christos 		    }
   5408      1.1  christos 		  else
   5409      1.1  christos 		    {
   5410      1.1  christos 		      bfd_signed_vma *lgot_refs;
   5411      1.1  christos 		      struct plt_entry **local_plt;
   5412      1.1  christos 		      char *lgot_masks;
   5413      1.1  christos 
   5414      1.1  christos 		      if (locsyms == NULL)
   5415      1.1  christos 			{
   5416      1.1  christos 			  locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
   5417      1.1  christos 			  if (locsyms == NULL)
   5418      1.1  christos 			    locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
   5419      1.1  christos 							    symtab_hdr->sh_info,
   5420      1.1  christos 							    0, NULL, NULL, NULL);
   5421      1.1  christos 			  if (locsyms == NULL)
   5422      1.1  christos 			    {
   5423      1.1  christos 			      if (elf_section_data (sec)->relocs != relstart)
   5424      1.1  christos 				free (relstart);
   5425      1.1  christos 			      return FALSE;
   5426      1.1  christos 			    }
   5427      1.1  christos 			}
   5428      1.1  christos 		      lgot_refs = elf_local_got_refcounts (ibfd);
   5429      1.1  christos 		      if (lgot_refs == NULL)
   5430      1.1  christos 			abort ();
   5431      1.1  christos 		      local_plt = (struct plt_entry **)
   5432      1.1  christos 			(lgot_refs + symtab_hdr->sh_info);
   5433      1.1  christos 		      lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   5434      1.1  christos 		      tls_mask = &lgot_masks[r_symndx];
   5435      1.1  christos 		      got_count = &lgot_refs[r_symndx];
   5436      1.1  christos 		    }
   5437      1.1  christos 
   5438      1.1  christos 		  if (tls_set == 0)
   5439      1.1  christos 		    {
   5440      1.1  christos 		      /* We managed to get rid of a got entry.  */
   5441      1.1  christos 		      if (*got_count > 0)
   5442      1.1  christos 			*got_count -= 1;
   5443      1.1  christos 		    }
   5444      1.1  christos 
   5445      1.1  christos 		  *tls_mask |= tls_set;
   5446      1.1  christos 		  *tls_mask &= ~tls_clear;
   5447      1.1  christos 		}
   5448      1.1  christos 
   5449      1.1  christos 	      if (elf_section_data (sec)->relocs != relstart)
   5450      1.1  christos 		free (relstart);
   5451      1.1  christos 	    }
   5452      1.1  christos 
   5453      1.1  christos 	if (locsyms != NULL
   5454      1.1  christos 	    && (symtab_hdr->contents != (unsigned char *) locsyms))
   5455      1.1  christos 	  {
   5456      1.1  christos 	    if (!info->keep_memory)
   5457      1.1  christos 	      free (locsyms);
   5458      1.1  christos 	    else
   5459      1.1  christos 	      symtab_hdr->contents = (unsigned char *) locsyms;
   5460      1.1  christos 	  }
   5461      1.1  christos       }
   5462      1.1  christos   return TRUE;
   5463      1.1  christos }
   5464      1.1  christos 
   5465      1.1  christos /* Return true if we have dynamic relocs that apply to read-only sections.  */
   5467      1.1  christos 
   5468      1.1  christos static bfd_boolean
   5469      1.1  christos readonly_dynrelocs (struct elf_link_hash_entry *h)
   5470      1.1  christos {
   5471      1.1  christos   struct elf_dyn_relocs *p;
   5472      1.1  christos 
   5473      1.1  christos   for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
   5474      1.1  christos     {
   5475      1.1  christos       asection *s = p->sec->output_section;
   5476      1.1  christos 
   5477      1.1  christos       if (s != NULL
   5478      1.1  christos 	  && ((s->flags & (SEC_READONLY | SEC_ALLOC))
   5479      1.1  christos 	      == (SEC_READONLY | SEC_ALLOC)))
   5480      1.1  christos 	return TRUE;
   5481      1.1  christos     }
   5482      1.1  christos   return FALSE;
   5483      1.1  christos }
   5484      1.1  christos 
   5485      1.1  christos /* Adjust a symbol defined by a dynamic object and referenced by a
   5486      1.1  christos    regular object.  The current definition is in some section of the
   5487      1.1  christos    dynamic object, but we're not including those sections.  We have to
   5488      1.1  christos    change the definition to something the rest of the link can
   5489      1.1  christos    understand.  */
   5490      1.1  christos 
   5491      1.1  christos static bfd_boolean
   5492      1.1  christos ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
   5493      1.1  christos 			       struct elf_link_hash_entry *h)
   5494      1.1  christos {
   5495      1.1  christos   struct ppc_elf_link_hash_table *htab;
   5496      1.1  christos   asection *s;
   5497      1.1  christos 
   5498      1.1  christos #ifdef DEBUG
   5499      1.1  christos   fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
   5500      1.1  christos 	   h->root.root.string);
   5501      1.1  christos #endif
   5502      1.1  christos 
   5503      1.1  christos   /* Make sure we know what is going on here.  */
   5504      1.1  christos   htab = ppc_elf_hash_table (info);
   5505      1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL
   5506      1.1  christos 	      && (h->needs_plt
   5507      1.1  christos 		  || h->type == STT_GNU_IFUNC
   5508      1.1  christos 		  || h->u.weakdef != NULL
   5509      1.1  christos 		  || (h->def_dynamic
   5510      1.1  christos 		      && h->ref_regular
   5511      1.1  christos 		      && !h->def_regular)));
   5512      1.1  christos 
   5513      1.1  christos   /* Deal with function syms.  */
   5514      1.1  christos   if (h->type == STT_FUNC
   5515      1.1  christos       || h->type == STT_GNU_IFUNC
   5516      1.1  christos       || h->needs_plt)
   5517      1.1  christos     {
   5518      1.1  christos       /* Clear procedure linkage table information for any symbol that
   5519      1.1  christos 	 won't need a .plt entry.  */
   5520      1.1  christos       struct plt_entry *ent;
   5521      1.1  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   5522      1.1  christos 	if (ent->plt.refcount > 0)
   5523      1.1  christos 	  break;
   5524      1.1  christos       if (ent == NULL
   5525      1.1  christos 	  || (h->type != STT_GNU_IFUNC
   5526      1.1  christos 	      && (SYMBOL_CALLS_LOCAL (info, h)
   5527      1.1  christos 		  || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   5528      1.1  christos 		      && h->root.type == bfd_link_hash_undefweak))))
   5529      1.1  christos 	{
   5530      1.3  christos 	  /* A PLT entry is not required/allowed when:
   5531      1.1  christos 
   5532      1.1  christos 	     1. We are not using ld.so; because then the PLT entry
   5533      1.1  christos 	     can't be set up, so we can't use one.  In this case,
   5534      1.3  christos 	     ppc_elf_adjust_dynamic_symbol won't even be called.
   5535      1.3  christos 
   5536      1.3  christos 	     2. GC has rendered the entry unused.
   5537      1.3  christos 
   5538      1.3  christos 	     3. We know for certain that a call to this symbol
   5539      1.3  christos 	     will go to this object, or will remain undefined.  */
   5540      1.3  christos 	  h->plt.plist = NULL;
   5541      1.3  christos 	  h->needs_plt = 0;
   5542      1.3  christos 	  h->pointer_equality_needed = 0;
   5543      1.3  christos 	}
   5544      1.3  christos       else
   5545      1.3  christos 	{
   5546      1.3  christos 	  /* Taking a function's address in a read/write section
   5547      1.3  christos 	     doesn't require us to define the function symbol in the
   5548      1.1  christos 	     executable on a plt call stub.  A dynamic reloc can
   5549      1.1  christos 	     be used instead.  */
   5550      1.1  christos 	  if (h->pointer_equality_needed
   5551      1.1  christos 	      && h->type != STT_GNU_IFUNC
   5552      1.1  christos 	      && !htab->is_vxworks
   5553      1.1  christos 	      && !ppc_elf_hash_entry (h)->has_sda_refs
   5554      1.1  christos 	      && !readonly_dynrelocs (h))
   5555      1.1  christos 	    {
   5556      1.1  christos 	      h->pointer_equality_needed = 0;
   5557      1.3  christos 	      h->non_got_ref = 0;
   5558      1.3  christos 	    }
   5559      1.3  christos 
   5560      1.3  christos 	  /* After adjust_dynamic_symbol, non_got_ref set in the
   5561      1.3  christos 	     non-shared case means that we have allocated space in
   5562      1.3  christos 	     .dynbss for the symbol and thus dyn_relocs for this
   5563      1.1  christos 	     symbol should be discarded.
   5564      1.1  christos 	     If we get here we know we are making a PLT entry for this
   5565  1.3.2.1  pgoyette 	     symbol, and in an executable we'd normally resolve
   5566      1.1  christos 	     relocations against this symbol to the PLT entry.  Allow
   5567      1.1  christos 	     dynamic relocs if the reference is weak, and the dynamic
   5568      1.1  christos 	     relocs will not cause text relocation.  */
   5569      1.1  christos 	  else if (!h->ref_regular_nonweak
   5570      1.1  christos 		   && h->non_got_ref
   5571      1.1  christos 		   && h->type != STT_GNU_IFUNC
   5572      1.1  christos 		   && !htab->is_vxworks
   5573      1.1  christos 		   && !ppc_elf_hash_entry (h)->has_sda_refs
   5574      1.1  christos 		   && !readonly_dynrelocs (h))
   5575      1.1  christos 	    h->non_got_ref = 0;
   5576      1.1  christos 	}
   5577      1.1  christos       h->protected_def = 0;
   5578      1.1  christos       return TRUE;
   5579      1.1  christos     }
   5580      1.1  christos   else
   5581      1.1  christos     h->plt.plist = NULL;
   5582      1.1  christos 
   5583      1.1  christos   /* If this is a weak symbol, and there is a real definition, the
   5584      1.1  christos      processor independent code will have arranged for us to see the
   5585      1.1  christos      real definition first, and we can just use the same value.  */
   5586      1.1  christos   if (h->u.weakdef != NULL)
   5587      1.1  christos     {
   5588      1.1  christos       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
   5589      1.1  christos 		  || h->u.weakdef->root.type == bfd_link_hash_defweak);
   5590      1.1  christos       h->root.u.def.section = h->u.weakdef->root.u.def.section;
   5591      1.1  christos       h->root.u.def.value = h->u.weakdef->root.u.def.value;
   5592      1.1  christos       if (ELIMINATE_COPY_RELOCS)
   5593  1.3.2.1  pgoyette 	h->non_got_ref = h->u.weakdef->non_got_ref;
   5594  1.3.2.1  pgoyette       return TRUE;
   5595  1.3.2.1  pgoyette     }
   5596  1.3.2.1  pgoyette 
   5597      1.1  christos   /* This is a reference to a symbol defined by a dynamic object which
   5598      1.1  christos      is not a function.  */
   5599      1.1  christos 
   5600      1.1  christos   /* If we are creating a shared library, we must presume that the
   5601  1.3.2.1  pgoyette      only references to the symbol are via the global offset table.
   5602  1.3.2.1  pgoyette      For such cases we need not do anything here; the relocations will
   5603  1.3.2.1  pgoyette      be handled correctly by relocate_section.  */
   5604  1.3.2.1  pgoyette   if (info->shared)
   5605  1.3.2.1  pgoyette     {
   5606  1.3.2.1  pgoyette       h->protected_def = 0;
   5607  1.3.2.1  pgoyette       return TRUE;
   5608  1.3.2.1  pgoyette     }
   5609  1.3.2.1  pgoyette 
   5610  1.3.2.1  pgoyette   /* If there are no references to this symbol that do not use the
   5611  1.3.2.1  pgoyette      GOT, we don't need to generate a copy reloc.  */
   5612  1.3.2.1  pgoyette   if (!h->non_got_ref)
   5613  1.3.2.1  pgoyette     {
   5614  1.3.2.1  pgoyette       h->protected_def = 0;
   5615  1.3.2.1  pgoyette       return TRUE;
   5616  1.3.2.1  pgoyette     }
   5617  1.3.2.1  pgoyette 
   5618  1.3.2.1  pgoyette   /* Protected variables do not work with .dynbss.  The copy in
   5619  1.3.2.1  pgoyette      .dynbss won't be used by the shared library with the protected
   5620  1.3.2.1  pgoyette      definition for the variable.  Editing to PIC, or text relocations
   5621  1.3.2.1  pgoyette      are preferable to an incorrect program.  */
   5622  1.3.2.1  pgoyette   if (h->protected_def)
   5623  1.3.2.1  pgoyette     {
   5624  1.3.2.1  pgoyette       if (ELIMINATE_COPY_RELOCS
   5625  1.3.2.1  pgoyette 	  && ppc_elf_hash_entry (h)->has_addr16_ha
   5626  1.3.2.1  pgoyette 	  && ppc_elf_hash_entry (h)->has_addr16_lo
   5627  1.3.2.1  pgoyette 	  && htab->params->pic_fixup == 0
   5628      1.1  christos 	  && info->disable_target_specific_optimizations <= 1)
   5629      1.1  christos 	htab->params->pic_fixup = 1;
   5630      1.1  christos       h->non_got_ref = 0;
   5631      1.1  christos       return TRUE;
   5632      1.1  christos     }
   5633      1.1  christos 
   5634      1.1  christos   /* If -z nocopyreloc was given, we won't generate them either.  */
   5635      1.1  christos   if (info->nocopyreloc)
   5636      1.1  christos     {
   5637      1.1  christos       h->non_got_ref = 0;
   5638      1.1  christos       return TRUE;
   5639      1.1  christos     }
   5640      1.1  christos 
   5641      1.1  christos    /* If we didn't find any dynamic relocs in read-only sections, then
   5642      1.1  christos       we'll be keeping the dynamic relocs and avoiding the copy reloc.
   5643      1.1  christos       We can't do this if there are any small data relocations.  This
   5644      1.1  christos       doesn't work on VxWorks, where we can not have dynamic
   5645      1.1  christos       relocations (other than copy and jump slot relocations) in an
   5646      1.1  christos       executable.  */
   5647      1.1  christos   if (ELIMINATE_COPY_RELOCS
   5648      1.1  christos       && !ppc_elf_hash_entry (h)->has_sda_refs
   5649      1.1  christos       && !htab->is_vxworks
   5650      1.1  christos       && !h->def_regular
   5651      1.1  christos       && !readonly_dynrelocs (h))
   5652      1.1  christos     {
   5653      1.1  christos       h->non_got_ref = 0;
   5654      1.1  christos       return TRUE;
   5655      1.1  christos     }
   5656      1.1  christos 
   5657      1.1  christos   /* We must allocate the symbol in our .dynbss section, which will
   5658      1.1  christos      become part of the .bss section of the executable.  There will be
   5659      1.1  christos      an entry for this symbol in the .dynsym section.  The dynamic
   5660      1.1  christos      object will contain position independent code, so all references
   5661      1.1  christos      from the dynamic object to this symbol will go through the global
   5662      1.1  christos      offset table.  The dynamic linker will use the .dynsym entry to
   5663      1.1  christos      determine the address it must put in the global offset table, so
   5664      1.1  christos      both the dynamic object and the regular object will refer to the
   5665      1.1  christos      same memory location for the variable.
   5666      1.1  christos 
   5667      1.1  christos      Of course, if the symbol is referenced using SDAREL relocs, we
   5668      1.1  christos      must instead allocate it in .sbss.  */
   5669      1.1  christos 
   5670      1.1  christos   if (ppc_elf_hash_entry (h)->has_sda_refs)
   5671      1.1  christos     s = htab->dynsbss;
   5672      1.1  christos   else
   5673      1.1  christos     s = htab->dynbss;
   5674      1.1  christos   BFD_ASSERT (s != NULL);
   5675      1.1  christos 
   5676      1.1  christos   /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
   5677      1.1  christos      copy the initial value out of the dynamic object and into the
   5678      1.1  christos      runtime process image.  We need to remember the offset into the
   5679      1.1  christos      .rela.bss section we are going to use.  */
   5680      1.1  christos   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
   5681      1.3  christos     {
   5682      1.1  christos       asection *srel;
   5683      1.1  christos 
   5684      1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   5685      1.1  christos 	srel = htab->relsbss;
   5686      1.1  christos       else
   5687      1.1  christos 	srel = htab->relbss;
   5688      1.1  christos       BFD_ASSERT (srel != NULL);
   5689      1.1  christos       srel->size += sizeof (Elf32_External_Rela);
   5690      1.1  christos       h->needs_copy = 1;
   5691      1.1  christos     }
   5692      1.1  christos 
   5693      1.1  christos   return _bfd_elf_adjust_dynamic_copy (info, h, s);
   5694      1.1  christos }
   5695      1.1  christos 
   5696      1.1  christos /* Generate a symbol to mark plt call stubs.  For non-PIC code the sym is
   5698      1.1  christos    xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
   5699      1.1  christos    specifying the addend on the plt relocation.  For -fpic code, the sym
   5700      1.1  christos    is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
   5701      1.1  christos    xxxxxxxx.got2.plt_pic32.<callee>.  */
   5702      1.1  christos 
   5703      1.1  christos static bfd_boolean
   5704      1.1  christos add_stub_sym (struct plt_entry *ent,
   5705      1.1  christos 	      struct elf_link_hash_entry *h,
   5706      1.1  christos 	      struct bfd_link_info *info)
   5707      1.1  christos {
   5708      1.1  christos   struct elf_link_hash_entry *sh;
   5709      1.1  christos   size_t len1, len2, len3;
   5710      1.1  christos   char *name;
   5711      1.1  christos   const char *stub;
   5712      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   5713      1.1  christos 
   5714      1.1  christos   if (info->shared)
   5715      1.1  christos     stub = ".plt_pic32.";
   5716      1.1  christos   else
   5717      1.1  christos     stub = ".plt_call32.";
   5718      1.1  christos 
   5719      1.1  christos   len1 = strlen (h->root.root.string);
   5720      1.1  christos   len2 = strlen (stub);
   5721      1.1  christos   len3 = 0;
   5722      1.1  christos   if (ent->sec)
   5723      1.1  christos     len3 = strlen (ent->sec->name);
   5724      1.1  christos   name = bfd_malloc (len1 + len2 + len3 + 9);
   5725      1.1  christos   if (name == NULL)
   5726      1.1  christos     return FALSE;
   5727      1.1  christos   sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
   5728      1.1  christos   if (ent->sec)
   5729      1.1  christos     memcpy (name + 8, ent->sec->name, len3);
   5730      1.1  christos   memcpy (name + 8 + len3, stub, len2);
   5731      1.1  christos   memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
   5732  1.3.2.1  pgoyette   sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
   5733      1.1  christos   if (sh == NULL)
   5734      1.1  christos     return FALSE;
   5735      1.1  christos   if (sh->root.type == bfd_link_hash_new)
   5736      1.1  christos     {
   5737      1.1  christos       sh->root.type = bfd_link_hash_defined;
   5738      1.1  christos       sh->root.u.def.section = htab->glink;
   5739      1.1  christos       sh->root.u.def.value = ent->glink_offset;
   5740      1.1  christos       sh->ref_regular = 1;
   5741      1.1  christos       sh->def_regular = 1;
   5742      1.1  christos       sh->ref_regular_nonweak = 1;
   5743      1.1  christos       sh->forced_local = 1;
   5744      1.1  christos       sh->non_elf = 0;
   5745      1.1  christos       sh->root.linker_def = 1;
   5746      1.1  christos     }
   5747      1.1  christos   return TRUE;
   5748      1.1  christos }
   5749      1.1  christos 
   5750      1.1  christos /* Allocate NEED contiguous space in .got, and return the offset.
   5751      1.1  christos    Handles allocation of the got header when crossing 32k.  */
   5752      1.1  christos 
   5753      1.1  christos static bfd_vma
   5754      1.1  christos allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
   5755      1.1  christos {
   5756      1.1  christos   bfd_vma where;
   5757      1.1  christos   unsigned int max_before_header;
   5758      1.1  christos 
   5759      1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   5760      1.1  christos     {
   5761      1.1  christos       where = htab->got->size;
   5762      1.1  christos       htab->got->size += need;
   5763      1.1  christos     }
   5764      1.1  christos   else
   5765      1.1  christos     {
   5766      1.1  christos       max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
   5767      1.1  christos       if (need <= htab->got_gap)
   5768      1.1  christos 	{
   5769      1.1  christos 	  where = max_before_header - htab->got_gap;
   5770      1.1  christos 	  htab->got_gap -= need;
   5771      1.1  christos 	}
   5772      1.1  christos       else
   5773      1.1  christos 	{
   5774      1.1  christos 	  if (htab->got->size + need > max_before_header
   5775      1.1  christos 	      && htab->got->size <= max_before_header)
   5776      1.1  christos 	    {
   5777      1.1  christos 	      htab->got_gap = max_before_header - htab->got->size;
   5778      1.1  christos 	      htab->got->size = max_before_header + htab->got_header_size;
   5779      1.1  christos 	    }
   5780      1.1  christos 	  where = htab->got->size;
   5781      1.1  christos 	  htab->got->size += need;
   5782      1.1  christos 	}
   5783      1.1  christos     }
   5784      1.1  christos   return where;
   5785      1.1  christos }
   5786      1.1  christos 
   5787      1.1  christos /* Allocate space in associated reloc sections for dynamic relocs.  */
   5788      1.1  christos 
   5789      1.1  christos static bfd_boolean
   5790      1.1  christos allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
   5791      1.1  christos {
   5792      1.1  christos   struct bfd_link_info *info = inf;
   5793      1.1  christos   struct ppc_elf_link_hash_entry *eh;
   5794      1.1  christos   struct ppc_elf_link_hash_table *htab;
   5795      1.1  christos   struct elf_dyn_relocs *p;
   5796      1.1  christos 
   5797      1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   5798      1.1  christos     return TRUE;
   5799      1.1  christos 
   5800      1.1  christos   htab = ppc_elf_hash_table (info);
   5801      1.1  christos   if (htab->elf.dynamic_sections_created
   5802      1.1  christos       || h->type == STT_GNU_IFUNC)
   5803      1.1  christos     {
   5804      1.1  christos       struct plt_entry *ent;
   5805      1.1  christos       bfd_boolean doneone = FALSE;
   5806      1.1  christos       bfd_vma plt_offset = 0, glink_offset = 0;
   5807      1.1  christos       bfd_boolean dyn;
   5808      1.1  christos 
   5809      1.1  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   5810      1.1  christos 	if (ent->plt.refcount > 0)
   5811      1.1  christos 	  {
   5812      1.1  christos 	    /* Make sure this symbol is output as a dynamic symbol.  */
   5813      1.1  christos 	    if (h->dynindx == -1
   5814      1.1  christos 		&& !h->forced_local
   5815      1.1  christos 		&& !h->def_regular
   5816      1.1  christos 		&& htab->elf.dynamic_sections_created)
   5817      1.1  christos 	      {
   5818      1.1  christos 		if (! bfd_elf_link_record_dynamic_symbol (info, h))
   5819      1.1  christos 		  return FALSE;
   5820      1.1  christos 	      }
   5821      1.1  christos 
   5822      1.1  christos 	    dyn = htab->elf.dynamic_sections_created;
   5823      1.1  christos 	    if (info->shared
   5824      1.1  christos 		|| h->type == STT_GNU_IFUNC
   5825      1.1  christos 		|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
   5826      1.1  christos 	      {
   5827      1.1  christos 		asection *s = htab->plt;
   5828      1.1  christos 		if (!dyn || h->dynindx == -1)
   5829      1.1  christos 		  s = htab->iplt;
   5830      1.1  christos 
   5831      1.1  christos 		if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
   5832      1.1  christos 		  {
   5833      1.3  christos 		    if (!doneone)
   5834      1.1  christos 		      {
   5835      1.1  christos 			plt_offset = s->size;
   5836      1.1  christos 			s->size += 4;
   5837      1.1  christos 		      }
   5838      1.1  christos 		    ent->plt.offset = plt_offset;
   5839      1.1  christos 
   5840      1.1  christos 		    s = htab->glink;
   5841      1.1  christos 		    if (!doneone || info->shared)
   5842      1.1  christos 		      {
   5843      1.1  christos 			glink_offset = s->size;
   5844      1.1  christos 			s->size += GLINK_ENTRY_SIZE;
   5845      1.1  christos 			if (h == htab->tls_get_addr
   5846      1.3  christos 			    && !htab->params->no_tls_get_addr_opt)
   5847      1.1  christos 			  s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
   5848      1.1  christos 		      }
   5849      1.1  christos 		    if (!doneone
   5850      1.1  christos 			&& !info->shared
   5851      1.1  christos 			&& h->def_dynamic
   5852      1.1  christos 			&& !h->def_regular)
   5853      1.1  christos 		      {
   5854      1.1  christos 			h->root.u.def.section = s;
   5855      1.1  christos 			h->root.u.def.value = glink_offset;
   5856      1.1  christos 		      }
   5857      1.1  christos 		    ent->glink_offset = glink_offset;
   5858      1.1  christos 
   5859      1.1  christos 		    if (htab->params->emit_stub_syms
   5860      1.1  christos 			&& !add_stub_sym (ent, h, info))
   5861      1.1  christos 		      return FALSE;
   5862      1.1  christos 		  }
   5863      1.1  christos 		else
   5864      1.1  christos 		  {
   5865      1.1  christos 		    if (!doneone)
   5866      1.1  christos 		      {
   5867      1.1  christos 			/* If this is the first .plt entry, make room
   5868      1.1  christos 			   for the special first entry.  */
   5869      1.1  christos 			if (s->size == 0)
   5870      1.1  christos 			  s->size += htab->plt_initial_entry_size;
   5871      1.1  christos 
   5872      1.1  christos 			/* The PowerPC PLT is actually composed of two
   5873      1.1  christos 			   parts, the first part is 2 words (for a load
   5874      1.1  christos 			   and a jump), and then there is a remaining
   5875      1.1  christos 			   word available at the end.  */
   5876      1.1  christos 			plt_offset = (htab->plt_initial_entry_size
   5877      1.1  christos 				      + (htab->plt_slot_size
   5878      1.1  christos 					 * ((s->size
   5879      1.1  christos 					     - htab->plt_initial_entry_size)
   5880      1.1  christos 					    / htab->plt_entry_size)));
   5881      1.1  christos 
   5882      1.1  christos 			/* If this symbol is not defined in a regular
   5883      1.1  christos 			   file, and we are not generating a shared
   5884      1.1  christos 			   library, then set the symbol to this location
   5885      1.1  christos 			   in the .plt.  This is to avoid text
   5886      1.1  christos 			   relocations, and is required to make
   5887      1.1  christos 			   function pointers compare as equal between
   5888      1.1  christos 			   the normal executable and the shared library.  */
   5889      1.1  christos 			if (! info->shared
   5890      1.1  christos 			    && h->def_dynamic
   5891      1.1  christos 			    && !h->def_regular)
   5892      1.1  christos 			  {
   5893      1.1  christos 			    h->root.u.def.section = s;
   5894      1.1  christos 			    h->root.u.def.value = plt_offset;
   5895      1.1  christos 			  }
   5896      1.1  christos 
   5897      1.1  christos 			/* Make room for this entry.  */
   5898      1.1  christos 			s->size += htab->plt_entry_size;
   5899      1.1  christos 			/* After the 8192nd entry, room for two entries
   5900      1.1  christos 			   is allocated.  */
   5901      1.1  christos 			if (htab->plt_type == PLT_OLD
   5902      1.1  christos 			    && (s->size - htab->plt_initial_entry_size)
   5903      1.1  christos 				/ htab->plt_entry_size
   5904      1.1  christos 			       > PLT_NUM_SINGLE_ENTRIES)
   5905      1.1  christos 			  s->size += htab->plt_entry_size;
   5906      1.1  christos 		      }
   5907      1.1  christos 		    ent->plt.offset = plt_offset;
   5908      1.1  christos 		  }
   5909      1.1  christos 
   5910      1.1  christos 		/* We also need to make an entry in the .rela.plt section.  */
   5911      1.1  christos 		if (!doneone)
   5912      1.1  christos 		  {
   5913      1.1  christos 		    if (!htab->elf.dynamic_sections_created
   5914      1.1  christos 			|| h->dynindx == -1)
   5915      1.1  christos 		      htab->reliplt->size += sizeof (Elf32_External_Rela);
   5916      1.1  christos 		    else
   5917      1.1  christos 		      {
   5918      1.1  christos 			htab->relplt->size += sizeof (Elf32_External_Rela);
   5919      1.1  christos 
   5920      1.1  christos 			if (htab->plt_type == PLT_VXWORKS)
   5921      1.1  christos 			  {
   5922      1.1  christos 			    /* Allocate space for the unloaded relocations.  */
   5923      1.1  christos 			    if (!info->shared
   5924      1.1  christos 				&& htab->elf.dynamic_sections_created)
   5925      1.1  christos 			      {
   5926      1.1  christos 				if (ent->plt.offset
   5927      1.1  christos 				    == (bfd_vma) htab->plt_initial_entry_size)
   5928      1.1  christos 				  {
   5929      1.1  christos 				    htab->srelplt2->size
   5930      1.1  christos 				      += (sizeof (Elf32_External_Rela)
   5931      1.1  christos 					  * VXWORKS_PLTRESOLVE_RELOCS);
   5932      1.1  christos 				  }
   5933      1.1  christos 
   5934      1.1  christos 				htab->srelplt2->size
   5935      1.1  christos 				  += (sizeof (Elf32_External_Rela)
   5936      1.1  christos 				      * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
   5937      1.1  christos 			      }
   5938      1.1  christos 
   5939      1.1  christos 			    /* Every PLT entry has an associated GOT entry in
   5940      1.1  christos 			       .got.plt.  */
   5941      1.1  christos 			    htab->sgotplt->size += 4;
   5942      1.1  christos 			  }
   5943      1.1  christos 		      }
   5944      1.1  christos 		    doneone = TRUE;
   5945      1.1  christos 		  }
   5946      1.1  christos 	      }
   5947      1.1  christos 	    else
   5948      1.1  christos 	      ent->plt.offset = (bfd_vma) -1;
   5949      1.1  christos 	  }
   5950      1.1  christos 	else
   5951      1.1  christos 	  ent->plt.offset = (bfd_vma) -1;
   5952      1.1  christos 
   5953  1.3.2.1  pgoyette       if (!doneone)
   5954  1.3.2.1  pgoyette 	{
   5955  1.3.2.1  pgoyette 	  h->plt.plist = NULL;
   5956  1.3.2.1  pgoyette 	  h->needs_plt = 0;
   5957  1.3.2.1  pgoyette 	}
   5958  1.3.2.1  pgoyette     }
   5959  1.3.2.1  pgoyette   else
   5960      1.1  christos     {
   5961      1.1  christos       h->plt.plist = NULL;
   5962      1.1  christos       h->needs_plt = 0;
   5963      1.1  christos     }
   5964      1.1  christos 
   5965      1.1  christos   eh = (struct ppc_elf_link_hash_entry *) h;
   5966      1.1  christos   if (eh->elf.got.refcount > 0
   5967      1.1  christos       || (ELIMINATE_COPY_RELOCS
   5968      1.1  christos 	  && !eh->elf.def_regular
   5969      1.1  christos 	  && eh->elf.protected_def
   5970      1.1  christos 	  && eh->has_addr16_ha
   5971      1.1  christos 	  && eh->has_addr16_lo
   5972      1.1  christos 	  && htab->params->pic_fixup > 0))
   5973      1.1  christos     {
   5974      1.1  christos       bfd_boolean dyn;
   5975      1.1  christos       unsigned int need;
   5976      1.1  christos 
   5977      1.1  christos       /* Make sure this symbol is output as a dynamic symbol.  */
   5978      1.1  christos       if (eh->elf.dynindx == -1
   5979      1.1  christos 	  && !eh->elf.forced_local
   5980      1.1  christos 	  && eh->elf.type != STT_GNU_IFUNC
   5981      1.1  christos 	  && htab->elf.dynamic_sections_created)
   5982      1.1  christos 	{
   5983      1.1  christos 	  if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
   5984      1.1  christos 	    return FALSE;
   5985      1.1  christos 	}
   5986      1.1  christos 
   5987      1.1  christos       need = 0;
   5988      1.1  christos       if ((eh->tls_mask & TLS_TLS) != 0)
   5989      1.1  christos 	{
   5990      1.1  christos 	  if ((eh->tls_mask & TLS_LD) != 0)
   5991      1.1  christos 	    {
   5992      1.1  christos 	      if (!eh->elf.def_dynamic)
   5993      1.1  christos 		/* We'll just use htab->tlsld_got.offset.  This should
   5994      1.1  christos 		   always be the case.  It's a little odd if we have
   5995      1.1  christos 		   a local dynamic reloc against a non-local symbol.  */
   5996      1.1  christos 		htab->tlsld_got.refcount += 1;
   5997      1.1  christos 	      else
   5998      1.1  christos 		need += 8;
   5999      1.1  christos 	    }
   6000      1.1  christos 	  if ((eh->tls_mask & TLS_GD) != 0)
   6001      1.1  christos 	    need += 8;
   6002      1.1  christos 	  if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6003      1.1  christos 	    need += 4;
   6004      1.1  christos 	  if ((eh->tls_mask & TLS_DTPREL) != 0)
   6005      1.1  christos 	    need += 4;
   6006      1.1  christos 	}
   6007      1.1  christos       else
   6008      1.1  christos 	need += 4;
   6009      1.1  christos       if (need == 0)
   6010      1.1  christos 	eh->elf.got.offset = (bfd_vma) -1;
   6011      1.1  christos       else
   6012      1.1  christos 	{
   6013      1.1  christos 	  eh->elf.got.offset = allocate_got (htab, need);
   6014      1.1  christos 	  dyn = htab->elf.dynamic_sections_created;
   6015      1.1  christos 	  if ((info->shared
   6016      1.1  christos 	       || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
   6017      1.1  christos 	      && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
   6018      1.1  christos 		  || eh->elf.root.type != bfd_link_hash_undefweak))
   6019      1.1  christos 	    {
   6020      1.1  christos 	      asection *rsec = htab->relgot;
   6021      1.1  christos 
   6022      1.1  christos 	      if (eh->elf.type == STT_GNU_IFUNC)
   6023      1.1  christos 		rsec = htab->reliplt;
   6024      1.1  christos 	      /* All the entries we allocated need relocs.
   6025      1.1  christos 		 Except LD only needs one.  */
   6026      1.1  christos 	      if ((eh->tls_mask & TLS_LD) != 0
   6027      1.1  christos 		  && eh->elf.def_dynamic)
   6028      1.1  christos 		need -= 4;
   6029      1.1  christos 	      rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
   6030      1.1  christos 	    }
   6031      1.1  christos 	}
   6032      1.1  christos     }
   6033      1.1  christos   else
   6034      1.1  christos     eh->elf.got.offset = (bfd_vma) -1;
   6035      1.1  christos 
   6036      1.1  christos   if (eh->dyn_relocs == NULL
   6037      1.1  christos       || !htab->elf.dynamic_sections_created)
   6038      1.1  christos     return TRUE;
   6039      1.1  christos 
   6040      1.1  christos   /* In the shared -Bsymbolic case, discard space allocated for
   6041      1.1  christos      dynamic pc-relative relocs against symbols which turn out to be
   6042      1.1  christos      defined in regular objects.  For the normal shared case, discard
   6043      1.1  christos      space for relocs that have become local due to symbol visibility
   6044      1.1  christos      changes.  */
   6045      1.1  christos 
   6046      1.1  christos   if (info->shared)
   6047      1.1  christos     {
   6048      1.1  christos       /* Relocs that use pc_count are those that appear on a call insn,
   6049      1.1  christos 	 or certain REL relocs (see must_be_dyn_reloc) that can be
   6050      1.1  christos 	 generated via assembly.  We want calls to protected symbols to
   6051      1.1  christos 	 resolve directly to the function rather than going via the plt.
   6052      1.1  christos 	 If people want function pointer comparisons to work as expected
   6053      1.1  christos 	 then they should avoid writing weird assembly.  */
   6054      1.1  christos       if (SYMBOL_CALLS_LOCAL (info, h))
   6055      1.1  christos 	{
   6056      1.1  christos 	  struct elf_dyn_relocs **pp;
   6057      1.1  christos 
   6058      1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6059      1.1  christos 	    {
   6060      1.1  christos 	      p->count -= p->pc_count;
   6061      1.1  christos 	      p->pc_count = 0;
   6062      1.1  christos 	      if (p->count == 0)
   6063      1.1  christos 		*pp = p->next;
   6064      1.1  christos 	      else
   6065      1.1  christos 		pp = &p->next;
   6066      1.1  christos 	    }
   6067      1.1  christos 	}
   6068      1.1  christos 
   6069      1.1  christos       if (htab->is_vxworks)
   6070      1.1  christos 	{
   6071      1.1  christos 	  struct elf_dyn_relocs **pp;
   6072      1.1  christos 
   6073      1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6074      1.1  christos 	    {
   6075      1.1  christos 	      if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
   6076      1.1  christos 		*pp = p->next;
   6077      1.1  christos 	      else
   6078      1.1  christos 		pp = &p->next;
   6079      1.1  christos 	    }
   6080      1.1  christos 	}
   6081      1.1  christos 
   6082      1.1  christos       /* Discard relocs on undefined symbols that must be local.  */
   6083      1.1  christos       if (eh->dyn_relocs != NULL
   6084      1.1  christos 	  && h->root.type == bfd_link_hash_undefined
   6085      1.1  christos 	  && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
   6086      1.1  christos 	      || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
   6087      1.1  christos 	eh->dyn_relocs = NULL;
   6088      1.1  christos 
   6089      1.1  christos       /* Also discard relocs on undefined weak syms with non-default
   6090      1.1  christos 	 visibility.  */
   6091      1.1  christos       if (eh->dyn_relocs != NULL
   6092      1.1  christos 	  && h->root.type == bfd_link_hash_undefweak)
   6093      1.1  christos 	{
   6094      1.1  christos 	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   6095      1.1  christos 	    eh->dyn_relocs = NULL;
   6096      1.1  christos 
   6097      1.1  christos 	  /* Make sure undefined weak symbols are output as a dynamic
   6098      1.1  christos 	     symbol in PIEs.  */
   6099      1.1  christos 	  else if (h->dynindx == -1
   6100      1.1  christos 		   && !h->forced_local
   6101      1.1  christos 		   && !h->def_regular)
   6102  1.3.2.1  pgoyette 	    {
   6103  1.3.2.1  pgoyette 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
   6104  1.3.2.1  pgoyette 		return FALSE;
   6105  1.3.2.1  pgoyette 	    }
   6106  1.3.2.1  pgoyette 	}
   6107      1.1  christos     }
   6108      1.1  christos   else if (ELIMINATE_COPY_RELOCS)
   6109      1.1  christos     {
   6110      1.1  christos       /* For the non-shared case, discard space for relocs against
   6111      1.1  christos 	 symbols which turn out to need copy relocs or are not
   6112      1.1  christos 	 dynamic.  */
   6113      1.1  christos 
   6114      1.1  christos       if (!h->non_got_ref
   6115      1.1  christos 	  && !h->def_regular
   6116      1.1  christos 	  && !(h->protected_def
   6117      1.1  christos 	       && eh->has_addr16_ha
   6118      1.1  christos 	       && eh->has_addr16_lo
   6119      1.1  christos 	       && htab->params->pic_fixup > 0))
   6120      1.1  christos 	{
   6121      1.1  christos 	  /* Make sure this symbol is output as a dynamic symbol.
   6122      1.1  christos 	     Undefined weak syms won't yet be marked as dynamic.  */
   6123      1.1  christos 	  if (h->dynindx == -1
   6124      1.1  christos 	      && !h->forced_local)
   6125      1.1  christos 	    {
   6126      1.1  christos 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
   6127      1.1  christos 		return FALSE;
   6128      1.1  christos 	    }
   6129      1.1  christos 
   6130      1.1  christos 	  /* If that succeeded, we know we'll be keeping all the
   6131      1.1  christos 	     relocs.  */
   6132      1.1  christos 	  if (h->dynindx != -1)
   6133      1.1  christos 	    goto keep;
   6134      1.1  christos 	}
   6135      1.1  christos 
   6136      1.1  christos       eh->dyn_relocs = NULL;
   6137      1.1  christos 
   6138      1.1  christos     keep: ;
   6139      1.1  christos     }
   6140      1.1  christos 
   6141      1.1  christos   /* Finally, allocate space.  */
   6142      1.1  christos   for (p = eh->dyn_relocs; p != NULL; p = p->next)
   6143      1.1  christos     {
   6144      1.1  christos       asection *sreloc = elf_section_data (p->sec)->sreloc;
   6145      1.1  christos       if (eh->elf.type == STT_GNU_IFUNC)
   6146      1.1  christos 	sreloc = htab->reliplt;
   6147      1.1  christos       sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6148      1.1  christos     }
   6149      1.1  christos 
   6150      1.1  christos   return TRUE;
   6151      1.1  christos }
   6152      1.1  christos 
   6153      1.1  christos /* Set DF_TEXTREL if we find any dynamic relocs that apply to
   6154      1.1  christos    read-only sections.  */
   6155      1.1  christos 
   6156      1.1  christos static bfd_boolean
   6157      1.1  christos maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
   6158      1.1  christos {
   6159      1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   6160      1.1  christos     return TRUE;
   6161      1.1  christos 
   6162      1.1  christos   if (readonly_dynrelocs (h))
   6163      1.1  christos     {
   6164      1.1  christos       ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
   6165      1.1  christos 
   6166      1.1  christos       /* Not an error, just cut short the traversal.  */
   6167      1.1  christos       return FALSE;
   6168      1.1  christos     }
   6169      1.1  christos   return TRUE;
   6170      1.1  christos }
   6171      1.1  christos 
   6172      1.1  christos static const unsigned char glink_eh_frame_cie[] =
   6173      1.1  christos {
   6174      1.1  christos   0, 0, 0, 16,				/* length.  */
   6175      1.1  christos   0, 0, 0, 0,				/* id.  */
   6176      1.3  christos   1,					/* CIE version.  */
   6177      1.1  christos   'z', 'R', 0,				/* Augmentation string.  */
   6178      1.1  christos   4,					/* Code alignment.  */
   6179      1.1  christos   0x7c,					/* Data alignment.  */
   6180      1.1  christos   65,					/* RA reg.  */
   6181      1.1  christos   1,					/* Augmentation size.  */
   6182      1.1  christos   DW_EH_PE_pcrel | DW_EH_PE_sdata4,	/* FDE encoding.  */
   6183      1.1  christos   DW_CFA_def_cfa, 1, 0			/* def_cfa: r1 offset 0.  */
   6184      1.1  christos };
   6185      1.1  christos 
   6186      1.1  christos /* Set the sizes of the dynamic sections.  */
   6187      1.1  christos 
   6188      1.1  christos static bfd_boolean
   6189      1.1  christos ppc_elf_size_dynamic_sections (bfd *output_bfd,
   6190      1.1  christos 			       struct bfd_link_info *info)
   6191      1.1  christos {
   6192      1.1  christos   struct ppc_elf_link_hash_table *htab;
   6193      1.1  christos   asection *s;
   6194      1.1  christos   bfd_boolean relocs;
   6195      1.1  christos   bfd *ibfd;
   6196      1.1  christos 
   6197      1.1  christos #ifdef DEBUG
   6198      1.1  christos   fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
   6199      1.1  christos #endif
   6200      1.1  christos 
   6201      1.1  christos   htab = ppc_elf_hash_table (info);
   6202      1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   6203      1.1  christos 
   6204      1.1  christos   if (elf_hash_table (info)->dynamic_sections_created)
   6205      1.1  christos     {
   6206      1.1  christos       /* Set the contents of the .interp section to the interpreter.  */
   6207      1.1  christos       if (info->executable)
   6208      1.1  christos 	{
   6209      1.1  christos 	  s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
   6210      1.3  christos 	  BFD_ASSERT (s != NULL);
   6211      1.1  christos 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
   6212      1.1  christos 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
   6213      1.1  christos 	}
   6214      1.1  christos     }
   6215      1.1  christos 
   6216      1.1  christos   if (htab->plt_type == PLT_OLD)
   6217      1.1  christos     htab->got_header_size = 16;
   6218      1.1  christos   else if (htab->plt_type == PLT_NEW)
   6219      1.1  christos     htab->got_header_size = 12;
   6220      1.1  christos 
   6221      1.1  christos   /* Set up .got offsets for local syms, and space for local dynamic
   6222      1.1  christos      relocs.  */
   6223      1.1  christos   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   6224      1.1  christos     {
   6225      1.1  christos       bfd_signed_vma *local_got;
   6226      1.1  christos       bfd_signed_vma *end_local_got;
   6227      1.1  christos       struct plt_entry **local_plt;
   6228      1.1  christos       struct plt_entry **end_local_plt;
   6229      1.1  christos       char *lgot_masks;
   6230      1.1  christos       bfd_size_type locsymcount;
   6231      1.1  christos       Elf_Internal_Shdr *symtab_hdr;
   6232      1.1  christos 
   6233      1.1  christos       if (!is_ppc_elf (ibfd))
   6234      1.1  christos 	continue;
   6235      1.1  christos 
   6236      1.1  christos       for (s = ibfd->sections; s != NULL; s = s->next)
   6237      1.1  christos 	{
   6238      1.1  christos 	  struct ppc_dyn_relocs *p;
   6239      1.1  christos 
   6240      1.1  christos 	  for (p = ((struct ppc_dyn_relocs *)
   6241      1.1  christos 		    elf_section_data (s)->local_dynrel);
   6242      1.1  christos 	       p != NULL;
   6243      1.1  christos 	       p = p->next)
   6244      1.1  christos 	    {
   6245      1.1  christos 	      if (!bfd_is_abs_section (p->sec)
   6246      1.1  christos 		  && bfd_is_abs_section (p->sec->output_section))
   6247      1.1  christos 		{
   6248      1.1  christos 		  /* Input section has been discarded, either because
   6249      1.1  christos 		     it is a copy of a linkonce section or due to
   6250      1.1  christos 		     linker script /DISCARD/, so we'll be discarding
   6251      1.1  christos 		     the relocs too.  */
   6252      1.1  christos 		}
   6253      1.1  christos 	      else if (htab->is_vxworks
   6254      1.1  christos 		       && strcmp (p->sec->output_section->name,
   6255      1.1  christos 				  ".tls_vars") == 0)
   6256      1.1  christos 		{
   6257      1.1  christos 		  /* Relocations in vxworks .tls_vars sections are
   6258      1.1  christos 		     handled specially by the loader.  */
   6259      1.1  christos 		}
   6260      1.1  christos 	      else if (p->count != 0)
   6261      1.1  christos 		{
   6262      1.1  christos 		  asection *sreloc = elf_section_data (p->sec)->sreloc;
   6263      1.1  christos 		  if (p->ifunc)
   6264      1.1  christos 		    sreloc = htab->reliplt;
   6265      1.1  christos 		  sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6266      1.1  christos 		  if ((p->sec->output_section->flags
   6267      1.1  christos 		       & (SEC_READONLY | SEC_ALLOC))
   6268      1.1  christos 		      == (SEC_READONLY | SEC_ALLOC))
   6269      1.1  christos 		    info->flags |= DF_TEXTREL;
   6270      1.1  christos 		}
   6271      1.1  christos 	    }
   6272      1.1  christos 	}
   6273      1.1  christos 
   6274      1.1  christos       local_got = elf_local_got_refcounts (ibfd);
   6275      1.1  christos       if (!local_got)
   6276      1.1  christos 	continue;
   6277      1.1  christos 
   6278      1.1  christos       symtab_hdr = &elf_symtab_hdr (ibfd);
   6279      1.1  christos       locsymcount = symtab_hdr->sh_info;
   6280      1.1  christos       end_local_got = local_got + locsymcount;
   6281      1.1  christos       local_plt = (struct plt_entry **) end_local_got;
   6282      1.1  christos       end_local_plt = local_plt + locsymcount;
   6283      1.1  christos       lgot_masks = (char *) end_local_plt;
   6284      1.1  christos 
   6285      1.1  christos       for (; local_got < end_local_got; ++local_got, ++lgot_masks)
   6286      1.1  christos 	if (*local_got > 0)
   6287      1.1  christos 	  {
   6288      1.1  christos 	    unsigned int need = 0;
   6289      1.1  christos 	    if ((*lgot_masks & TLS_TLS) != 0)
   6290      1.1  christos 	      {
   6291      1.1  christos 		if ((*lgot_masks & TLS_GD) != 0)
   6292      1.1  christos 		  need += 8;
   6293      1.1  christos 		if ((*lgot_masks & TLS_LD) != 0)
   6294      1.1  christos 		  htab->tlsld_got.refcount += 1;
   6295      1.1  christos 		if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6296      1.1  christos 		  need += 4;
   6297      1.1  christos 		if ((*lgot_masks & TLS_DTPREL) != 0)
   6298      1.1  christos 		  need += 4;
   6299      1.1  christos 	      }
   6300      1.1  christos 	    else
   6301      1.1  christos 	      need += 4;
   6302      1.1  christos 	    if (need == 0)
   6303      1.1  christos 	      *local_got = (bfd_vma) -1;
   6304      1.1  christos 	    else
   6305      1.1  christos 	      {
   6306      1.1  christos 		*local_got = allocate_got (htab, need);
   6307      1.1  christos 		if (info->shared)
   6308      1.1  christos 		  {
   6309      1.1  christos 		    asection *srel = htab->relgot;
   6310      1.1  christos 		    if ((*lgot_masks & PLT_IFUNC) != 0)
   6311      1.1  christos 		      srel = htab->reliplt;
   6312      1.1  christos 		    srel->size += need * (sizeof (Elf32_External_Rela) / 4);
   6313      1.1  christos 		  }
   6314      1.1  christos 	      }
   6315      1.1  christos 	  }
   6316      1.1  christos 	else
   6317      1.1  christos 	  *local_got = (bfd_vma) -1;
   6318      1.1  christos 
   6319      1.1  christos       if (htab->is_vxworks)
   6320      1.1  christos 	continue;
   6321      1.1  christos 
   6322      1.1  christos       /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt.  */
   6323      1.1  christos       for (; local_plt < end_local_plt; ++local_plt)
   6324      1.1  christos 	{
   6325      1.1  christos 	  struct plt_entry *ent;
   6326      1.1  christos 	  bfd_boolean doneone = FALSE;
   6327      1.1  christos 	  bfd_vma plt_offset = 0, glink_offset = 0;
   6328      1.1  christos 
   6329      1.1  christos 	  for (ent = *local_plt; ent != NULL; ent = ent->next)
   6330      1.1  christos 	    if (ent->plt.refcount > 0)
   6331      1.1  christos 	      {
   6332      1.1  christos 		s = htab->iplt;
   6333      1.1  christos 
   6334      1.1  christos 		if (!doneone)
   6335      1.1  christos 		  {
   6336      1.1  christos 		    plt_offset = s->size;
   6337      1.1  christos 		    s->size += 4;
   6338      1.1  christos 		  }
   6339      1.1  christos 		ent->plt.offset = plt_offset;
   6340      1.1  christos 
   6341      1.1  christos 		s = htab->glink;
   6342      1.1  christos 		if (!doneone || info->shared)
   6343      1.1  christos 		  {
   6344      1.1  christos 		    glink_offset = s->size;
   6345      1.1  christos 		    s->size += GLINK_ENTRY_SIZE;
   6346      1.1  christos 		  }
   6347      1.1  christos 		ent->glink_offset = glink_offset;
   6348      1.1  christos 
   6349      1.1  christos 		if (!doneone)
   6350      1.1  christos 		  {
   6351      1.1  christos 		    htab->reliplt->size += sizeof (Elf32_External_Rela);
   6352      1.1  christos 		    doneone = TRUE;
   6353      1.1  christos 		  }
   6354      1.1  christos 	      }
   6355      1.1  christos 	    else
   6356      1.1  christos 	      ent->plt.offset = (bfd_vma) -1;
   6357      1.1  christos 	}
   6358      1.1  christos     }
   6359      1.1  christos 
   6360      1.1  christos   /* Allocate space for global sym dynamic relocs.  */
   6361      1.1  christos   elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
   6362      1.1  christos 
   6363      1.1  christos   if (htab->tlsld_got.refcount > 0)
   6364      1.1  christos     {
   6365      1.1  christos       htab->tlsld_got.offset = allocate_got (htab, 8);
   6366      1.1  christos       if (info->shared)
   6367      1.1  christos 	htab->relgot->size += sizeof (Elf32_External_Rela);
   6368      1.1  christos     }
   6369      1.1  christos   else
   6370      1.1  christos     htab->tlsld_got.offset = (bfd_vma) -1;
   6371      1.1  christos 
   6372      1.1  christos   if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
   6373      1.1  christos     {
   6374      1.1  christos       unsigned int g_o_t = 32768;
   6375      1.1  christos 
   6376      1.1  christos       /* If we haven't allocated the header, do so now.  When we get here,
   6377      1.1  christos 	 for old plt/got the got size will be 0 to 32764 (not allocated),
   6378      1.1  christos 	 or 32780 to 65536 (header allocated).  For new plt/got, the
   6379      1.1  christos 	 corresponding ranges are 0 to 32768 and 32780 to 65536.  */
   6380      1.3  christos       if (htab->got->size <= 32768)
   6381      1.3  christos 	{
   6382      1.3  christos 	  g_o_t = htab->got->size;
   6383      1.3  christos 	  if (htab->plt_type == PLT_OLD)
   6384      1.3  christos 	    g_o_t += 4;
   6385      1.3  christos 	  htab->got->size += htab->got_header_size;
   6386      1.3  christos 	}
   6387      1.3  christos 
   6388      1.3  christos       htab->elf.hgot->root.u.def.value = g_o_t;
   6389      1.3  christos     }
   6390      1.3  christos   if (info->shared)
   6391      1.3  christos     {
   6392      1.3  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6393      1.1  christos 
   6394      1.1  christos       sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
   6395      1.1  christos       sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
   6396      1.1  christos     }
   6397      1.1  christos   if (info->emitrelocations)
   6398      1.1  christos     {
   6399      1.1  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6400      1.1  christos 
   6401      1.1  christos       if (sda != NULL && sda->ref_regular)
   6402      1.1  christos 	sda->root.u.def.section->flags |= SEC_KEEP;
   6403      1.3  christos       sda = htab->sdata[1].sym;
   6404      1.3  christos       if (sda != NULL && sda->ref_regular)
   6405      1.1  christos 	sda->root.u.def.section->flags |= SEC_KEEP;
   6406      1.1  christos     }
   6407      1.3  christos 
   6408      1.1  christos   if (htab->glink != NULL
   6409      1.1  christos       && htab->glink->size != 0
   6410      1.1  christos       && htab->elf.dynamic_sections_created)
   6411      1.1  christos     {
   6412      1.1  christos       htab->glink_pltresolve = htab->glink->size;
   6413      1.1  christos       /* Space for the branch table.  */
   6414      1.1  christos       htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
   6415      1.1  christos       /* Pad out to align the start of PLTresolve.  */
   6416      1.1  christos       htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
   6417      1.1  christos 						 ? 63 : 15);
   6418      1.1  christos       htab->glink->size += GLINK_PLTRESOLVE;
   6419      1.1  christos 
   6420      1.1  christos       if (htab->params->emit_stub_syms)
   6421      1.1  christos 	{
   6422      1.1  christos 	  struct elf_link_hash_entry *sh;
   6423      1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink",
   6424  1.3.2.1  pgoyette 				     TRUE, FALSE, FALSE);
   6425      1.1  christos 	  if (sh == NULL)
   6426      1.1  christos 	    return FALSE;
   6427      1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6428      1.1  christos 	    {
   6429      1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6430      1.1  christos 	      sh->root.u.def.section = htab->glink;
   6431      1.1  christos 	      sh->root.u.def.value = htab->glink_pltresolve;
   6432      1.1  christos 	      sh->ref_regular = 1;
   6433      1.1  christos 	      sh->def_regular = 1;
   6434      1.1  christos 	      sh->ref_regular_nonweak = 1;
   6435      1.1  christos 	      sh->forced_local = 1;
   6436      1.1  christos 	      sh->non_elf = 0;
   6437      1.1  christos 	      sh->root.linker_def = 1;
   6438      1.1  christos 	    }
   6439      1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
   6440  1.3.2.1  pgoyette 				     TRUE, FALSE, FALSE);
   6441      1.1  christos 	  if (sh == NULL)
   6442      1.1  christos 	    return FALSE;
   6443      1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6444      1.1  christos 	    {
   6445      1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6446      1.1  christos 	      sh->root.u.def.section = htab->glink;
   6447      1.1  christos 	      sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
   6448      1.1  christos 	      sh->ref_regular = 1;
   6449      1.1  christos 	      sh->def_regular = 1;
   6450      1.1  christos 	      sh->ref_regular_nonweak = 1;
   6451      1.1  christos 	      sh->forced_local = 1;
   6452      1.1  christos 	      sh->non_elf = 0;
   6453      1.1  christos 	      sh->root.linker_def = 1;
   6454      1.1  christos 	    }
   6455      1.1  christos 	}
   6456      1.1  christos     }
   6457      1.1  christos 
   6458      1.1  christos   if (htab->glink != NULL
   6459      1.1  christos       && htab->glink->size != 0
   6460      1.1  christos       && htab->glink_eh_frame != NULL
   6461      1.1  christos       && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
   6462      1.1  christos       && _bfd_elf_eh_frame_present (info))
   6463      1.1  christos     {
   6464      1.1  christos       s = htab->glink_eh_frame;
   6465      1.1  christos       s->size = sizeof (glink_eh_frame_cie) + 20;
   6466      1.1  christos       if (info->shared)
   6467      1.1  christos 	{
   6468      1.1  christos 	  s->size += 4;
   6469      1.1  christos 	  if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
   6470      1.1  christos 	    s->size += 4;
   6471      1.1  christos 	}
   6472      1.1  christos     }
   6473      1.1  christos 
   6474      1.1  christos   /* We've now determined the sizes of the various dynamic sections.
   6475      1.1  christos      Allocate memory for them.  */
   6476      1.1  christos   relocs = FALSE;
   6477      1.1  christos   for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
   6478      1.1  christos     {
   6479      1.1  christos       bfd_boolean strip_section = TRUE;
   6480      1.1  christos 
   6481      1.1  christos       if ((s->flags & SEC_LINKER_CREATED) == 0)
   6482      1.1  christos 	continue;
   6483      1.1  christos 
   6484      1.1  christos       if (s == htab->plt
   6485      1.1  christos 	  || s == htab->got)
   6486      1.1  christos 	{
   6487      1.1  christos 	  /* We'd like to strip these sections if they aren't needed, but if
   6488      1.3  christos 	     we've exported dynamic symbols from them we must leave them.
   6489      1.3  christos 	     It's too late to tell BFD to get rid of the symbols.  */
   6490      1.3  christos 	  if (htab->elf.hplt != NULL)
   6491      1.3  christos 	    strip_section = FALSE;
   6492      1.3  christos 	  /* Strip this section if we don't need it; see the
   6493      1.1  christos 	     comment below.  */
   6494      1.1  christos 	}
   6495      1.3  christos       else if (s == htab->iplt
   6496      1.1  christos 	       || s == htab->glink
   6497      1.1  christos 	       || s == htab->glink_eh_frame
   6498      1.1  christos 	       || s == htab->sgotplt
   6499      1.1  christos 	       || s == htab->sbss
   6500      1.1  christos 	       || s == htab->dynbss
   6501      1.1  christos 	       || s == htab->dynsbss)
   6502      1.1  christos 	{
   6503      1.1  christos 	  /* Strip these too.  */
   6504      1.1  christos 	}
   6505      1.1  christos       else if (s == htab->sdata[0].section
   6506      1.1  christos 	       || s == htab->sdata[1].section)
   6507      1.1  christos 	{
   6508      1.1  christos 	  strip_section = (s->flags & SEC_KEEP) == 0;
   6509      1.1  christos 	}
   6510      1.1  christos       else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
   6511      1.1  christos 			     ".rela"))
   6512      1.1  christos 	{
   6513      1.1  christos 	  if (s->size != 0)
   6514      1.1  christos 	    {
   6515      1.1  christos 	      /* Remember whether there are any relocation sections.  */
   6516      1.1  christos 	      relocs = TRUE;
   6517      1.1  christos 
   6518      1.1  christos 	      /* We use the reloc_count field as a counter if we need
   6519      1.1  christos 		 to copy relocs into the output file.  */
   6520      1.1  christos 	      s->reloc_count = 0;
   6521      1.1  christos 	    }
   6522      1.1  christos 	}
   6523      1.1  christos       else
   6524      1.1  christos 	{
   6525      1.1  christos 	  /* It's not one of our sections, so don't allocate space.  */
   6526      1.1  christos 	  continue;
   6527      1.1  christos 	}
   6528      1.1  christos 
   6529      1.1  christos       if (s->size == 0 && strip_section)
   6530      1.1  christos 	{
   6531      1.1  christos 	  /* If we don't need this section, strip it from the
   6532      1.1  christos 	     output file.  This is mostly to handle .rela.bss and
   6533      1.1  christos 	     .rela.plt.  We must create both sections in
   6534      1.1  christos 	     create_dynamic_sections, because they must be created
   6535      1.1  christos 	     before the linker maps input sections to output
   6536      1.1  christos 	     sections.  The linker does that before
   6537      1.1  christos 	     adjust_dynamic_symbol is called, and it is that
   6538      1.1  christos 	     function which decides whether anything needs to go
   6539      1.1  christos 	     into these sections.  */
   6540      1.1  christos 	  s->flags |= SEC_EXCLUDE;
   6541      1.1  christos 	  continue;
   6542      1.1  christos 	}
   6543      1.1  christos 
   6544      1.1  christos       if ((s->flags & SEC_HAS_CONTENTS) == 0)
   6545      1.1  christos 	continue;
   6546      1.1  christos 
   6547      1.1  christos       /* Allocate memory for the section contents.  */
   6548      1.1  christos       s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
   6549      1.1  christos       if (s->contents == NULL)
   6550      1.1  christos 	return FALSE;
   6551      1.1  christos     }
   6552      1.1  christos 
   6553      1.1  christos   if (htab->elf.dynamic_sections_created)
   6554      1.1  christos     {
   6555      1.1  christos       /* Add some entries to the .dynamic section.  We fill in the
   6556      1.1  christos 	 values later, in ppc_elf_finish_dynamic_sections, but we
   6557      1.1  christos 	 must add the entries now so that we get the correct size for
   6558      1.1  christos 	 the .dynamic section.  The DT_DEBUG entry is filled in by the
   6559      1.1  christos 	 dynamic linker and used by the debugger.  */
   6560      1.1  christos #define add_dynamic_entry(TAG, VAL) \
   6561      1.1  christos   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
   6562      1.1  christos 
   6563      1.1  christos       if (info->executable)
   6564      1.1  christos 	{
   6565      1.3  christos 	  if (!add_dynamic_entry (DT_DEBUG, 0))
   6566      1.3  christos 	    return FALSE;
   6567      1.3  christos 	}
   6568      1.1  christos 
   6569      1.1  christos       if (htab->plt != NULL && htab->plt->size != 0)
   6570      1.1  christos 	{
   6571      1.3  christos 	  if (!add_dynamic_entry (DT_PLTGOT, 0)
   6572      1.1  christos 	      || !add_dynamic_entry (DT_PLTRELSZ, 0)
   6573      1.1  christos 	      || !add_dynamic_entry (DT_PLTREL, DT_RELA)
   6574      1.1  christos 	      || !add_dynamic_entry (DT_JMPREL, 0))
   6575      1.1  christos 	    return FALSE;
   6576      1.1  christos 	}
   6577      1.1  christos 
   6578      1.1  christos       if (htab->plt_type == PLT_NEW
   6579      1.1  christos 	  && htab->glink != NULL
   6580      1.1  christos 	  && htab->glink->size != 0)
   6581      1.1  christos 	{
   6582      1.1  christos 	  if (!add_dynamic_entry (DT_PPC_GOT, 0))
   6583      1.1  christos 	    return FALSE;
   6584      1.1  christos 	  if (!htab->params->no_tls_get_addr_opt
   6585      1.1  christos 	      && htab->tls_get_addr != NULL
   6586      1.1  christos 	      && htab->tls_get_addr->plt.plist != NULL
   6587      1.1  christos 	      && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
   6588      1.1  christos 	    return FALSE;
   6589      1.1  christos 	}
   6590      1.1  christos 
   6591      1.1  christos       if (relocs)
   6592      1.1  christos 	{
   6593      1.1  christos 	  if (!add_dynamic_entry (DT_RELA, 0)
   6594      1.1  christos 	      || !add_dynamic_entry (DT_RELASZ, 0)
   6595      1.1  christos 	      || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
   6596      1.1  christos 	    return FALSE;
   6597      1.1  christos 	}
   6598      1.1  christos 
   6599      1.1  christos       /* If any dynamic relocs apply to a read-only section, then we
   6600      1.1  christos 	 need a DT_TEXTREL entry.  */
   6601      1.1  christos       if ((info->flags & DF_TEXTREL) == 0)
   6602      1.1  christos 	elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
   6603      1.1  christos 				info);
   6604      1.1  christos 
   6605      1.1  christos       if ((info->flags & DF_TEXTREL) != 0)
   6606      1.1  christos 	{
   6607      1.1  christos 	  if (!add_dynamic_entry (DT_TEXTREL, 0))
   6608      1.1  christos 	    return FALSE;
   6609      1.1  christos 	}
   6610      1.1  christos       if (htab->is_vxworks
   6611      1.1  christos 	  && !elf_vxworks_add_dynamic_entries (output_bfd, info))
   6612      1.1  christos 	return FALSE;
   6613      1.1  christos    }
   6614      1.1  christos #undef add_dynamic_entry
   6615      1.1  christos 
   6616      1.1  christos   if (htab->glink_eh_frame != NULL
   6617      1.1  christos       && htab->glink_eh_frame->contents != NULL)
   6618      1.1  christos     {
   6619      1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   6620      1.1  christos       bfd_vma val;
   6621      1.1  christos 
   6622      1.1  christos       memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
   6623      1.1  christos       /* CIE length (rewrite in case little-endian).  */
   6624      1.1  christos       bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
   6625      1.1  christos       p += sizeof (glink_eh_frame_cie);
   6626      1.1  christos       /* FDE length.  */
   6627      1.1  christos       val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
   6628      1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   6629      1.1  christos       p += 4;
   6630      1.1  christos       /* CIE pointer.  */
   6631      1.1  christos       val = p - htab->glink_eh_frame->contents;
   6632      1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   6633      1.1  christos       p += 4;
   6634      1.1  christos       /* Offset to .glink.  Set later.  */
   6635      1.1  christos       p += 4;
   6636      1.1  christos       /* .glink size.  */
   6637      1.1  christos       bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
   6638      1.1  christos       p += 4;
   6639      1.1  christos       /* Augmentation.  */
   6640      1.1  christos       p += 1;
   6641      1.1  christos 
   6642      1.1  christos       if (info->shared
   6643      1.1  christos 	  && htab->elf.dynamic_sections_created)
   6644      1.1  christos 	{
   6645      1.1  christos 	  bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
   6646      1.1  christos 	  if (adv < 64)
   6647      1.1  christos 	    *p++ = DW_CFA_advance_loc + adv;
   6648      1.1  christos 	  else if (adv < 256)
   6649      1.1  christos 	    {
   6650      1.1  christos 	      *p++ = DW_CFA_advance_loc1;
   6651      1.1  christos 	      *p++ = adv;
   6652      1.1  christos 	    }
   6653      1.1  christos 	  else if (adv < 65536)
   6654      1.1  christos 	    {
   6655      1.1  christos 	      *p++ = DW_CFA_advance_loc2;
   6656      1.1  christos 	      bfd_put_16 (htab->elf.dynobj, adv, p);
   6657      1.1  christos 	      p += 2;
   6658      1.1  christos 	    }
   6659      1.1  christos 	  else
   6660      1.1  christos 	    {
   6661      1.1  christos 	      *p++ = DW_CFA_advance_loc4;
   6662      1.1  christos 	      bfd_put_32 (htab->elf.dynobj, adv, p);
   6663      1.1  christos 	      p += 4;
   6664      1.1  christos 	    }
   6665      1.1  christos 	  *p++ = DW_CFA_register;
   6666      1.3  christos 	  *p++ = 65;
   6667      1.3  christos 	  p++;
   6668      1.3  christos 	  *p++ = DW_CFA_advance_loc + 4;
   6669      1.3  christos 	  *p++ = DW_CFA_restore_extended;
   6670      1.3  christos 	  *p++ = 65;
   6671      1.3  christos 	}
   6672      1.3  christos       BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
   6673      1.3  christos 		  == htab->glink_eh_frame->size);
   6674      1.3  christos     }
   6675      1.3  christos 
   6676      1.3  christos   return TRUE;
   6677      1.3  christos }
   6678      1.3  christos 
   6679      1.3  christos /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
   6680      1.3  christos    if it looks like nothing is using them.  */
   6681      1.3  christos 
   6682      1.3  christos static void
   6683      1.3  christos maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
   6684      1.3  christos {
   6685      1.3  christos   struct elf_link_hash_entry *sda = lsect->sym;
   6686      1.3  christos 
   6687      1.3  christos   if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
   6688      1.3  christos     {
   6689      1.3  christos       asection *s;
   6690      1.3  christos 
   6691      1.3  christos       s = bfd_get_section_by_name (output_bfd, lsect->name);
   6692      1.3  christos       if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
   6693      1.3  christos 	{
   6694      1.3  christos 	  s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
   6695      1.3  christos 	  if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
   6696      1.3  christos 	    {
   6697      1.3  christos 	      sda->def_regular = 0;
   6698      1.3  christos 	      /* This is somewhat magic.  See elf_link_output_extsym.  */
   6699      1.3  christos 	      sda->ref_dynamic = 1;
   6700      1.3  christos 	      sda->forced_local = 0;
   6701      1.3  christos 	    }
   6702      1.3  christos 	}
   6703      1.3  christos     }
   6704      1.3  christos }
   6705      1.3  christos 
   6706      1.1  christos void
   6707      1.1  christos ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
   6708      1.1  christos {
   6709      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   6710      1.1  christos 
   6711      1.1  christos   if (htab != NULL)
   6712      1.1  christos     {
   6713      1.1  christos       maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
   6714      1.1  christos       maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
   6715      1.1  christos     }
   6716      1.1  christos }
   6717      1.1  christos 
   6718      1.1  christos 
   6719      1.1  christos /* Return TRUE if symbol should be hashed in the `.gnu.hash' section.  */
   6720      1.1  christos 
   6721      1.1  christos static bfd_boolean
   6722      1.1  christos ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
   6723      1.1  christos {
   6724      1.1  christos   if (h->plt.plist != NULL
   6725      1.1  christos       && !h->def_regular
   6726      1.1  christos       && (!h->pointer_equality_needed
   6727      1.1  christos 	  || !h->ref_regular_nonweak))
   6728      1.1  christos     return FALSE;
   6729      1.1  christos 
   6730      1.3  christos   return _bfd_elf_hash_symbol (h);
   6731      1.1  christos }
   6732      1.1  christos 
   6733      1.1  christos #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
   6735      1.1  christos 
   6736      1.1  christos /* Relaxation trampolines.  r12 is available for clobbering (r11, is
   6737      1.1  christos    used for some functions that are allowed to break the ABI).  */
   6738      1.1  christos static const int shared_stub_entry[] =
   6739      1.1  christos   {
   6740      1.1  christos     0x7c0802a6, /* mflr 0 */
   6741      1.1  christos     0x429f0005, /* bcl 20, 31, .Lxxx */
   6742      1.1  christos     0x7d8802a6, /* mflr 12 */
   6743      1.1  christos     0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
   6744      1.3  christos     0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
   6745      1.3  christos     0x7c0803a6, /* mtlr 0 */
   6746      1.3  christos     0x7d8903a6, /* mtctr 12 */
   6747  1.3.2.1  pgoyette     0x4e800420, /* bctr */
   6748      1.3  christos   };
   6749      1.3  christos 
   6750      1.3  christos static const int stub_entry[] =
   6751      1.3  christos   {
   6752      1.3  christos     0x3d800000, /* lis 12,xxx@ha */
   6753      1.3  christos     0x398c0000, /* addi 12,12,xxx@l */
   6754      1.3  christos     0x7d8903a6, /* mtctr 12 */
   6755      1.1  christos     0x4e800420, /* bctr */
   6756      1.1  christos   };
   6757      1.1  christos 
   6758      1.1  christos struct ppc_elf_relax_info
   6759      1.1  christos {
   6760      1.1  christos   unsigned int workaround_size;
   6761  1.3.2.1  pgoyette   unsigned int picfixup_size;
   6762      1.1  christos };
   6763  1.3.2.1  pgoyette 
   6764      1.1  christos /* This function implements long branch trampolines, and the ppc476
   6765      1.1  christos    icache bug workaround.  Any section needing trampolines or patch
   6766      1.1  christos    space for the workaround has its size extended so that we can
   6767      1.1  christos    add trampolines at the end of the section.  */
   6768      1.1  christos 
   6769      1.1  christos static bfd_boolean
   6770      1.1  christos ppc_elf_relax_section (bfd *abfd,
   6771      1.1  christos 		       asection *isec,
   6772      1.1  christos 		       struct bfd_link_info *link_info,
   6773      1.1  christos 		       bfd_boolean *again)
   6774      1.1  christos {
   6775      1.3  christos   struct one_branch_fixup
   6776  1.3.2.1  pgoyette   {
   6777      1.3  christos     struct one_branch_fixup *next;
   6778      1.1  christos     asection *tsec;
   6779      1.3  christos     /* Final link, can use the symbol offset.  For a
   6780      1.1  christos        relocatable link we use the symbol's index.  */
   6781  1.3.2.1  pgoyette     bfd_vma toff;
   6782      1.1  christos     bfd_vma trampoff;
   6783      1.1  christos   };
   6784      1.1  christos 
   6785      1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   6786      1.1  christos   bfd_byte *contents = NULL;
   6787      1.3  christos   Elf_Internal_Sym *isymbuf = NULL;
   6788      1.1  christos   Elf_Internal_Rela *internal_relocs = NULL;
   6789      1.1  christos   Elf_Internal_Rela *irel, *irelend = NULL;
   6790      1.3  christos   struct one_branch_fixup *branch_fixups = NULL;
   6791      1.3  christos   struct ppc_elf_relax_info *relax_info = NULL;
   6792      1.1  christos   unsigned changes = 0;
   6793      1.1  christos   bfd_boolean workaround_change;
   6794      1.1  christos   struct ppc_elf_link_hash_table *htab;
   6795      1.1  christos   bfd_size_type trampbase, trampoff, newsize, picfixup_size;
   6796      1.1  christos   asection *got2;
   6797      1.1  christos   bfd_boolean maybe_pasted;
   6798      1.3  christos 
   6799      1.3  christos   *again = FALSE;
   6800      1.3  christos 
   6801      1.3  christos   /* No need to do anything with non-alloc or non-code sections.  */
   6802      1.3  christos   if ((isec->flags & SEC_ALLOC) == 0
   6803      1.3  christos       || (isec->flags & SEC_CODE) == 0
   6804      1.3  christos       || (isec->flags & SEC_LINKER_CREATED) != 0
   6805      1.3  christos       || isec->size < 4)
   6806      1.3  christos     return TRUE;
   6807      1.3  christos 
   6808      1.3  christos   /* We cannot represent the required PIC relocs in the output, so don't
   6809      1.3  christos      do anything.  The linker doesn't support mixing -shared and -r
   6810      1.3  christos      anyway.  */
   6811      1.3  christos   if (link_info->relocatable && link_info->shared)
   6812      1.3  christos     return TRUE;
   6813  1.3.2.1  pgoyette 
   6814  1.3.2.1  pgoyette   htab = ppc_elf_hash_table (link_info);
   6815      1.3  christos   if (htab == NULL)
   6816      1.3  christos     return TRUE;
   6817      1.3  christos 
   6818      1.3  christos   isec->size = (isec->size + 3) & -4;
   6819      1.3  christos   if (isec->rawsize == 0)
   6820      1.3  christos     isec->rawsize = isec->size;
   6821      1.3  christos   trampbase = isec->size;
   6822      1.3  christos 
   6823      1.3  christos   BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
   6824      1.3  christos 	      || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
   6825      1.3  christos   isec->sec_info_type = SEC_INFO_TYPE_TARGET;
   6826      1.1  christos 
   6827      1.1  christos   if (htab->params->ppc476_workaround
   6828      1.1  christos       || htab->params->pic_fixup > 0)
   6829      1.1  christos     {
   6830      1.3  christos       if (elf_section_data (isec)->sec_info == NULL)
   6831      1.3  christos 	{
   6832      1.1  christos 	  elf_section_data (isec)->sec_info
   6833      1.1  christos 	    = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
   6834      1.1  christos 	  if (elf_section_data (isec)->sec_info == NULL)
   6835  1.3.2.1  pgoyette 	    return FALSE;
   6836  1.3.2.1  pgoyette 	}
   6837  1.3.2.1  pgoyette       relax_info = elf_section_data (isec)->sec_info;
   6838      1.1  christos       trampbase -= relax_info->workaround_size;
   6839      1.3  christos     }
   6840      1.3  christos 
   6841      1.1  christos   maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
   6842      1.3  christos 		  || strcmp (isec->output_section->name, ".fini") == 0);
   6843      1.3  christos   /* Space for a branch around any trampolines.  */
   6844      1.3  christos   trampoff = trampbase;
   6845      1.3  christos   if (maybe_pasted && trampbase == isec->rawsize)
   6846      1.3  christos     trampoff += 4;
   6847      1.1  christos 
   6848      1.3  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   6849      1.1  christos   picfixup_size = 0;
   6850      1.3  christos   if (htab->params->branch_trampolines
   6851      1.3  christos       || htab->params->pic_fixup > 0)
   6852      1.3  christos     {
   6853      1.3  christos       /* Get a copy of the native relocations.  */
   6854      1.3  christos       if (isec->reloc_count != 0)
   6855      1.3  christos 	{
   6856  1.3.2.1  pgoyette 	  internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
   6857      1.3  christos 						       link_info->keep_memory);
   6858  1.3.2.1  pgoyette 	  if (internal_relocs == NULL)
   6859      1.3  christos 	    goto error_return;
   6860      1.3  christos 	}
   6861      1.3  christos 
   6862      1.3  christos       got2 = bfd_get_section_by_name (abfd, ".got2");
   6863      1.3  christos 
   6864      1.3  christos       irelend = internal_relocs + isec->reloc_count;
   6865      1.3  christos       for (irel = internal_relocs; irel < irelend; irel++)
   6866      1.3  christos 	{
   6867      1.3  christos 	  unsigned long r_type = ELF32_R_TYPE (irel->r_info);
   6868      1.3  christos 	  bfd_vma toff, roff;
   6869      1.3  christos 	  asection *tsec;
   6870      1.3  christos 	  struct one_branch_fixup *f;
   6871      1.3  christos 	  size_t insn_offset = 0;
   6872      1.1  christos 	  bfd_vma max_branch_offset = 0, val;
   6873      1.3  christos 	  bfd_byte *hit_addr;
   6874      1.3  christos 	  unsigned long t0;
   6875      1.3  christos 	  struct elf_link_hash_entry *h;
   6876      1.3  christos 	  struct plt_entry **plist;
   6877      1.3  christos 	  unsigned char sym_type;
   6878      1.1  christos 
   6879  1.3.2.1  pgoyette 	  switch (r_type)
   6880  1.3.2.1  pgoyette 	    {
   6881  1.3.2.1  pgoyette 	    case R_PPC_REL24:
   6882  1.3.2.1  pgoyette 	    case R_PPC_LOCAL24PC:
   6883  1.3.2.1  pgoyette 	    case R_PPC_PLTREL24:
   6884      1.3  christos 	      max_branch_offset = 1 << 25;
   6885      1.3  christos 	      break;
   6886      1.1  christos 
   6887      1.1  christos 	    case R_PPC_REL14:
   6888      1.3  christos 	    case R_PPC_REL14_BRTAKEN:
   6889      1.3  christos 	    case R_PPC_REL14_BRNTAKEN:
   6890      1.3  christos 	      max_branch_offset = 1 << 15;
   6891      1.3  christos 	      break;
   6892      1.3  christos 
   6893      1.3  christos 	    case R_PPC_ADDR16_HA:
   6894      1.1  christos 	      if (htab->params->pic_fixup > 0)
   6895      1.3  christos 		break;
   6896      1.3  christos 	      continue;
   6897      1.3  christos 
   6898      1.3  christos 	    default:
   6899      1.3  christos 	      continue;
   6900      1.3  christos 	    }
   6901      1.3  christos 
   6902      1.3  christos 	  /* Get the value of the symbol referred to by the reloc.  */
   6903      1.3  christos 	  h = NULL;
   6904      1.3  christos 	  if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
   6905      1.3  christos 	    {
   6906      1.3  christos 	      /* A local symbol.  */
   6907      1.3  christos 	      Elf_Internal_Sym *isym;
   6908      1.3  christos 
   6909      1.3  christos 	      /* Read this BFD's local symbols.  */
   6910      1.3  christos 	      if (isymbuf == NULL)
   6911      1.3  christos 		{
   6912      1.3  christos 		  isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
   6913      1.3  christos 		  if (isymbuf == NULL)
   6914      1.3  christos 		    isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
   6915      1.1  christos 						    symtab_hdr->sh_info, 0,
   6916      1.3  christos 						    NULL, NULL, NULL);
   6917      1.3  christos 		  if (isymbuf == 0)
   6918      1.1  christos 		    goto error_return;
   6919      1.3  christos 		}
   6920      1.1  christos 	      isym = isymbuf + ELF32_R_SYM (irel->r_info);
   6921      1.3  christos 	      if (isym->st_shndx == SHN_UNDEF)
   6922      1.3  christos 		tsec = bfd_und_section_ptr;
   6923      1.1  christos 	      else if (isym->st_shndx == SHN_ABS)
   6924      1.3  christos 		tsec = bfd_abs_section_ptr;
   6925      1.3  christos 	      else if (isym->st_shndx == SHN_COMMON)
   6926      1.1  christos 		tsec = bfd_com_section_ptr;
   6927      1.3  christos 	      else
   6928      1.3  christos 		tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
   6929      1.3  christos 
   6930      1.1  christos 	      toff = isym->st_value;
   6931      1.3  christos 	      sym_type = ELF_ST_TYPE (isym->st_info);
   6932      1.3  christos 	    }
   6933      1.3  christos 	  else
   6934      1.3  christos 	    {
   6935      1.3  christos 	      /* Global symbol handling.  */
   6936      1.3  christos 	      unsigned long indx;
   6937      1.3  christos 
   6938      1.3  christos 	      indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
   6939      1.1  christos 	      h = elf_sym_hashes (abfd)[indx];
   6940      1.3  christos 
   6941      1.3  christos 	      while (h->root.type == bfd_link_hash_indirect
   6942      1.1  christos 		     || h->root.type == bfd_link_hash_warning)
   6943      1.1  christos 		h = (struct elf_link_hash_entry *) h->root.u.i.link;
   6944      1.3  christos 
   6945      1.3  christos 	      if (h->root.type == bfd_link_hash_defined
   6946      1.3  christos 		  || h->root.type == bfd_link_hash_defweak)
   6947      1.3  christos 		{
   6948      1.3  christos 		  tsec = h->root.u.def.section;
   6949      1.3  christos 		  toff = h->root.u.def.value;
   6950      1.3  christos 		}
   6951      1.3  christos 	      else if (h->root.type == bfd_link_hash_undefined
   6952      1.3  christos 		       || h->root.type == bfd_link_hash_undefweak)
   6953      1.1  christos 		{
   6954      1.3  christos 		  tsec = bfd_und_section_ptr;
   6955      1.3  christos 		  toff = link_info->relocatable ? indx : 0;
   6956      1.3  christos 		}
   6957      1.3  christos 	      else
   6958      1.3  christos 		continue;
   6959      1.3  christos 
   6960      1.3  christos 	      /* If this branch is to __tls_get_addr then we may later
   6961      1.3  christos 		 optimise away the call.  We won't be needing a long-
   6962      1.3  christos 		 branch stub in that case.  */
   6963      1.3  christos 	      if (link_info->executable
   6964      1.3  christos 		  && !link_info->relocatable
   6965      1.3  christos 		  && h == htab->tls_get_addr
   6966      1.3  christos 		  && irel != internal_relocs)
   6967      1.3  christos 		{
   6968      1.3  christos 		  unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
   6969      1.3  christos 		  unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
   6970      1.3  christos 		  unsigned int tls_mask = 0;
   6971      1.3  christos 
   6972      1.3  christos 		  /* The previous reloc should be one of R_PPC_TLSGD or
   6973      1.3  christos 		     R_PPC_TLSLD, or for older object files, a reloc
   6974      1.3  christos 		     on the __tls_get_addr arg setup insn.  Get tls
   6975      1.3  christos 		     mask bits from the symbol on that reloc.  */
   6976      1.3  christos 		  if (t_symndx < symtab_hdr->sh_info)
   6977      1.3  christos 		    {
   6978      1.3  christos 		      bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   6979      1.1  christos 
   6980      1.3  christos 		      if (local_got_offsets != NULL)
   6981      1.3  christos 			{
   6982      1.3  christos 			  struct plt_entry **local_plt = (struct plt_entry **)
   6983      1.1  christos 			    (local_got_offsets + symtab_hdr->sh_info);
   6984      1.3  christos 			  char *lgot_masks = (char *)
   6985      1.3  christos 			    (local_plt + symtab_hdr->sh_info);
   6986      1.3  christos 			  tls_mask = lgot_masks[t_symndx];
   6987      1.1  christos 			}
   6988      1.3  christos 		    }
   6989      1.3  christos 		  else
   6990      1.3  christos 		    {
   6991      1.3  christos 		      struct elf_link_hash_entry *th
   6992      1.3  christos 			= elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
   6993      1.3  christos 
   6994      1.3  christos 		      while (th->root.type == bfd_link_hash_indirect
   6995      1.3  christos 			     || th->root.type == bfd_link_hash_warning)
   6996      1.3  christos 			th = (struct elf_link_hash_entry *) th->root.u.i.link;
   6997      1.3  christos 
   6998      1.3  christos 		      tls_mask
   6999      1.3  christos 			= ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
   7000      1.3  christos 		    }
   7001      1.1  christos 
   7002      1.3  christos 		  /* The mask bits tell us if the call will be
   7003      1.3  christos 		     optimised away.  */
   7004      1.1  christos 		  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
   7005  1.3.2.1  pgoyette 		      && (t_rtype == R_PPC_TLSGD
   7006  1.3.2.1  pgoyette 			  || t_rtype == R_PPC_GOT_TLSGD16
   7007  1.3.2.1  pgoyette 			  || t_rtype == R_PPC_GOT_TLSGD16_LO))
   7008  1.3.2.1  pgoyette 		    continue;
   7009  1.3.2.1  pgoyette 		  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
   7010  1.3.2.1  pgoyette 		      && (t_rtype == R_PPC_TLSLD
   7011  1.3.2.1  pgoyette 			  || t_rtype == R_PPC_GOT_TLSLD16
   7012  1.3.2.1  pgoyette 			  || t_rtype == R_PPC_GOT_TLSLD16_LO))
   7013  1.3.2.1  pgoyette 		    continue;
   7014  1.3.2.1  pgoyette 		}
   7015  1.3.2.1  pgoyette 
   7016      1.3  christos 	      sym_type = h->type;
   7017      1.3  christos 	    }
   7018      1.3  christos 
   7019      1.3  christos 	  if (r_type == R_PPC_ADDR16_HA)
   7020      1.3  christos 	    {
   7021      1.3  christos 	      if (h != NULL
   7022      1.3  christos 		  && !h->def_regular
   7023      1.3  christos 		  && h->protected_def
   7024      1.3  christos 		  && ppc_elf_hash_entry (h)->has_addr16_ha
   7025      1.3  christos 		  && ppc_elf_hash_entry (h)->has_addr16_lo)
   7026      1.3  christos 		picfixup_size += 12;
   7027      1.3  christos 	      continue;
   7028      1.3  christos 	    }
   7029      1.3  christos 
   7030      1.3  christos 	  /* The condition here under which we call find_plt_ent must
   7031      1.3  christos 	     match that in relocate_section.  If we call find_plt_ent here
   7032      1.3  christos 	     but not in relocate_section, or vice versa, then the branch
   7033      1.3  christos 	     destination used here may be incorrect.  */
   7034      1.3  christos 	  plist = NULL;
   7035      1.3  christos 	  if (h != NULL)
   7036      1.3  christos 	    {
   7037      1.3  christos 	      /* We know is_branch_reloc (r_type) is true.  */
   7038      1.3  christos 	      if (h->type == STT_GNU_IFUNC
   7039      1.3  christos 		  || r_type == R_PPC_PLTREL24)
   7040      1.1  christos 		plist = &h->plt.plist;
   7041      1.3  christos 	    }
   7042      1.3  christos 	  else if (sym_type == STT_GNU_IFUNC
   7043      1.3  christos 		   && elf_local_got_offsets (abfd) != NULL)
   7044      1.3  christos 	    {
   7045      1.3  christos 	      bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   7046      1.3  christos 	      struct plt_entry **local_plt = (struct plt_entry **)
   7047      1.3  christos 		(local_got_offsets + symtab_hdr->sh_info);
   7048      1.3  christos 	      plist = local_plt + ELF32_R_SYM (irel->r_info);
   7049      1.3  christos 	    }
   7050      1.3  christos 	  if (plist != NULL)
   7051      1.3  christos 	    {
   7052      1.3  christos 	      bfd_vma addend = 0;
   7053      1.3  christos 	      struct plt_entry *ent;
   7054      1.3  christos 
   7055      1.3  christos 	      if (r_type == R_PPC_PLTREL24 && link_info->shared)
   7056      1.3  christos 		addend = irel->r_addend;
   7057      1.3  christos 	      ent = find_plt_ent (plist, got2, addend);
   7058      1.3  christos 	      if (ent != NULL)
   7059      1.3  christos 		{
   7060      1.3  christos 		  if (htab->plt_type == PLT_NEW
   7061      1.1  christos 		      || h == NULL
   7062      1.3  christos 		      || !htab->elf.dynamic_sections_created
   7063      1.3  christos 		      || h->dynindx == -1)
   7064      1.3  christos 		    {
   7065      1.3  christos 		      tsec = htab->glink;
   7066      1.1  christos 		      toff = ent->glink_offset;
   7067      1.1  christos 		    }
   7068      1.3  christos 		  else
   7069      1.3  christos 		    {
   7070      1.3  christos 		      tsec = htab->plt;
   7071      1.3  christos 		      toff = ent->plt.offset;
   7072      1.3  christos 		    }
   7073      1.3  christos 		}
   7074      1.3  christos 	    }
   7075      1.3  christos 
   7076      1.3  christos 	  /* If the branch and target are in the same section, you have
   7077      1.3  christos 	     no hope of adding stubs.  We'll error out later should the
   7078      1.3  christos 	     branch overflow.  */
   7079      1.3  christos 	  if (tsec == isec)
   7080      1.3  christos 	    continue;
   7081      1.3  christos 
   7082      1.3  christos 	  /* There probably isn't any reason to handle symbols in
   7083      1.3  christos 	     SEC_MERGE sections;  SEC_MERGE doesn't seem a likely
   7084      1.3  christos 	     attribute for a code section, and we are only looking at
   7085      1.3  christos 	     branches.  However, implement it correctly here as a
   7086      1.3  christos 	     reference for other target relax_section functions.  */
   7087      1.3  christos 	  if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
   7088      1.3  christos 	    {
   7089      1.3  christos 	      /* At this stage in linking, no SEC_MERGE symbol has been
   7090      1.3  christos 		 adjusted, so all references to such symbols need to be
   7091      1.3  christos 		 passed through _bfd_merged_section_offset.  (Later, in
   7092      1.3  christos 		 relocate_section, all SEC_MERGE symbols *except* for
   7093      1.3  christos 		 section symbols have been adjusted.)
   7094      1.3  christos 
   7095      1.3  christos 		 gas may reduce relocations against symbols in SEC_MERGE
   7096      1.3  christos 		 sections to a relocation against the section symbol when
   7097      1.3  christos 		 the original addend was zero.  When the reloc is against
   7098      1.1  christos 		 a section symbol we should include the addend in the
   7099      1.3  christos 		 offset passed to _bfd_merged_section_offset, since the
   7100      1.3  christos 		 location of interest is the original symbol.  On the
   7101      1.3  christos 		 other hand, an access to "sym+addend" where "sym" is not
   7102      1.3  christos 		 a section symbol should not include the addend;  Such an
   7103      1.3  christos 		 access is presumed to be an offset from "sym";  The
   7104      1.3  christos 		 location of interest is just "sym".  */
   7105      1.1  christos 	      if (sym_type == STT_SECTION)
   7106      1.3  christos 		toff += irel->r_addend;
   7107      1.3  christos 
   7108      1.3  christos 	      toff
   7109      1.3  christos 		= _bfd_merged_section_offset (abfd, &tsec,
   7110      1.3  christos 					      elf_section_data (tsec)->sec_info,
   7111      1.3  christos 					      toff);
   7112      1.1  christos 
   7113      1.1  christos 	      if (sym_type != STT_SECTION)
   7114      1.3  christos 		toff += irel->r_addend;
   7115      1.3  christos 	    }
   7116      1.3  christos 	  /* PLTREL24 addends are special.  */
   7117      1.3  christos 	  else if (r_type != R_PPC_PLTREL24)
   7118      1.3  christos 	    toff += irel->r_addend;
   7119      1.3  christos 
   7120      1.3  christos 	  /* Attempted -shared link of non-pic code loses.  */
   7121      1.3  christos 	  if ((!link_info->relocatable
   7122      1.3  christos 	       && tsec == bfd_und_section_ptr)
   7123      1.3  christos 	      || tsec->output_section == NULL
   7124      1.3  christos 	      || (tsec->owner != NULL
   7125      1.3  christos 		  && (tsec->owner->flags & BFD_PLUGIN) != 0))
   7126      1.3  christos 	    continue;
   7127      1.3  christos 
   7128      1.3  christos 	  roff = irel->r_offset;
   7129      1.3  christos 
   7130      1.1  christos 	  /* If the branch is in range, no need to do anything.  */
   7131      1.3  christos 	  if (tsec != bfd_und_section_ptr
   7132      1.3  christos 	      && (!link_info->relocatable
   7133  1.3.2.1  pgoyette 		  /* A relocatable link may have sections moved during
   7134      1.3  christos 		     final link, so do not presume they remain in range.  */
   7135      1.3  christos 		  || tsec->output_section == isec->output_section))
   7136      1.3  christos 	    {
   7137      1.3  christos 	      bfd_vma symaddr, reladdr;
   7138      1.1  christos 
   7139      1.3  christos 	      symaddr = tsec->output_section->vma + tsec->output_offset + toff;
   7140      1.3  christos 	      reladdr = isec->output_section->vma + isec->output_offset + roff;
   7141      1.1  christos 	      if (symaddr - reladdr + max_branch_offset
   7142      1.3  christos 		  < 2 * max_branch_offset)
   7143      1.3  christos 		continue;
   7144      1.3  christos 	    }
   7145      1.3  christos 
   7146      1.3  christos 	  /* Look for an existing fixup to this address.  */
   7147      1.1  christos 	  for (f = branch_fixups; f ; f = f->next)
   7148      1.3  christos 	    if (f->tsec == tsec && f->toff == toff)
   7149      1.3  christos 	      break;
   7150      1.3  christos 
   7151      1.3  christos 	  if (f == NULL)
   7152      1.3  christos 	    {
   7153      1.3  christos 	      size_t size;
   7154      1.3  christos 	      unsigned long stub_rtype;
   7155      1.3  christos 
   7156      1.3  christos 	      val = trampoff - roff;
   7157      1.3  christos 	      if (val >= max_branch_offset)
   7158      1.3  christos 		/* Oh dear, we can't reach a trampoline.  Don't try to add
   7159      1.3  christos 		   one.  We'll report an error later.  */
   7160      1.3  christos 		continue;
   7161      1.3  christos 
   7162      1.3  christos 	      if (link_info->shared)
   7163      1.3  christos 		{
   7164      1.3  christos 		  size = 4 * ARRAY_SIZE (shared_stub_entry);
   7165      1.3  christos 		  insn_offset = 12;
   7166      1.1  christos 		}
   7167      1.3  christos 	      else
   7168      1.3  christos 		{
   7169      1.3  christos 		  size = 4 * ARRAY_SIZE (stub_entry);
   7170      1.3  christos 		  insn_offset = 0;
   7171      1.3  christos 		}
   7172      1.3  christos 	      stub_rtype = R_PPC_RELAX;
   7173      1.3  christos 	      if (tsec == htab->plt
   7174      1.3  christos 		  || tsec == htab->glink)
   7175      1.3  christos 		{
   7176      1.3  christos 		  stub_rtype = R_PPC_RELAX_PLT;
   7177      1.3  christos 		  if (r_type == R_PPC_PLTREL24)
   7178  1.3.2.1  pgoyette 		    stub_rtype = R_PPC_RELAX_PLTREL24;
   7179      1.3  christos 		}
   7180      1.3  christos 
   7181      1.3  christos 	      /* Hijack the old relocation.  Since we need two
   7182  1.3.2.1  pgoyette 		 relocations for this use a "composite" reloc.  */
   7183      1.1  christos 	      irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
   7184      1.3  christos 					   stub_rtype);
   7185      1.3  christos 	      irel->r_offset = trampoff + insn_offset;
   7186      1.3  christos 	      if (r_type == R_PPC_PLTREL24
   7187      1.1  christos 		  && stub_rtype != R_PPC_RELAX_PLTREL24)
   7188      1.1  christos 		irel->r_addend = 0;
   7189      1.3  christos 
   7190      1.3  christos 	      /* Record the fixup so we don't do it again this section.  */
   7191      1.3  christos 	      f = bfd_malloc (sizeof (*f));
   7192      1.3  christos 	      f->next = branch_fixups;
   7193      1.3  christos 	      f->tsec = tsec;
   7194      1.3  christos 	      f->toff = toff;
   7195      1.3  christos 	      f->trampoff = trampoff;
   7196      1.3  christos 	      branch_fixups = f;
   7197      1.3  christos 
   7198      1.3  christos 	      trampoff += size;
   7199      1.3  christos 	      changes++;
   7200      1.3  christos 	    }
   7201      1.3  christos 	  else
   7202      1.3  christos 	    {
   7203      1.1  christos 	      val = f->trampoff - roff;
   7204      1.3  christos 	      if (val >= max_branch_offset)
   7205      1.1  christos 		continue;
   7206      1.1  christos 
   7207      1.1  christos 	      /* Nop out the reloc, since we're finalizing things here.  */
   7208      1.3  christos 	      irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7209      1.3  christos 	    }
   7210      1.3  christos 
   7211      1.3  christos 	  /* Get the section contents.  */
   7212      1.3  christos 	  if (contents == NULL)
   7213      1.3  christos 	    {
   7214      1.3  christos 	      /* Get cached copy if it exists.  */
   7215      1.3  christos 	      if (elf_section_data (isec)->this_hdr.contents != NULL)
   7216      1.3  christos 		contents = elf_section_data (isec)->this_hdr.contents;
   7217      1.3  christos 	      /* Go get them off disk.  */
   7218      1.3  christos 	      else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
   7219      1.3  christos 		goto error_return;
   7220      1.1  christos 	    }
   7221      1.3  christos 
   7222      1.3  christos 	  /* Fix up the existing branch to hit the trampoline.  */
   7223      1.3  christos 	  hit_addr = contents + roff;
   7224      1.3  christos 	  switch (r_type)
   7225      1.3  christos 	    {
   7226      1.3  christos 	    case R_PPC_REL24:
   7227      1.3  christos 	    case R_PPC_LOCAL24PC:
   7228      1.3  christos 	    case R_PPC_PLTREL24:
   7229      1.3  christos 	      t0 = bfd_get_32 (abfd, hit_addr);
   7230      1.1  christos 	      t0 &= ~0x3fffffc;
   7231      1.1  christos 	      t0 |= val & 0x3fffffc;
   7232  1.3.2.1  pgoyette 	      bfd_put_32 (abfd, t0, hit_addr);
   7233      1.1  christos 	      break;
   7234  1.3.2.1  pgoyette 
   7235  1.3.2.1  pgoyette 	    case R_PPC_REL14:
   7236      1.1  christos 	    case R_PPC_REL14_BRTAKEN:
   7237      1.1  christos 	    case R_PPC_REL14_BRNTAKEN:
   7238      1.3  christos 	      t0 = bfd_get_32 (abfd, hit_addr);
   7239      1.1  christos 	      t0 &= ~0xfffc;
   7240      1.3  christos 	      t0 |= val & 0xfffc;
   7241      1.3  christos 	      bfd_put_32 (abfd, t0, hit_addr);
   7242      1.3  christos 	      break;
   7243      1.3  christos 	    }
   7244      1.3  christos 	}
   7245      1.3  christos 
   7246      1.3  christos       while (branch_fixups != NULL)
   7247      1.3  christos 	{
   7248      1.3  christos 	  struct one_branch_fixup *f = branch_fixups;
   7249      1.3  christos 	  branch_fixups = branch_fixups->next;
   7250      1.3  christos 	  free (f);
   7251      1.3  christos 	}
   7252      1.3  christos     }
   7253      1.3  christos 
   7254      1.3  christos   workaround_change = FALSE;
   7255      1.3  christos   newsize = trampoff;
   7256      1.3  christos   if (htab->params->ppc476_workaround
   7257      1.3  christos       && (!link_info->relocatable
   7258      1.3  christos 	  || isec->output_section->alignment_power >= htab->params->pagesize_p2))
   7259      1.3  christos     {
   7260      1.3  christos       bfd_vma addr, end_addr;
   7261      1.3  christos       unsigned int crossings;
   7262      1.3  christos       bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   7263      1.3  christos 
   7264      1.3  christos       addr = isec->output_section->vma + isec->output_offset;
   7265      1.3  christos       end_addr = addr + trampoff;
   7266      1.3  christos       addr &= -pagesize;
   7267      1.3  christos       crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
   7268      1.1  christos       if (crossings != 0)
   7269      1.3  christos 	{
   7270      1.3  christos 	  /* Keep space aligned, to ensure the patch code itself does
   7271      1.1  christos 	     not cross a page.  Don't decrease size calculated on a
   7272  1.3.2.1  pgoyette 	     previous pass as otherwise we might never settle on a layout.  */
   7273  1.3.2.1  pgoyette 	  newsize = 15 - ((end_addr - 1) & 15);
   7274  1.3.2.1  pgoyette 	  newsize += crossings * 16;
   7275  1.3.2.1  pgoyette 	  if (relax_info->workaround_size < newsize)
   7276  1.3.2.1  pgoyette 	    {
   7277  1.3.2.1  pgoyette 	      relax_info->workaround_size = newsize;
   7278  1.3.2.1  pgoyette 	      workaround_change = TRUE;
   7279  1.3.2.1  pgoyette 	    }
   7280  1.3.2.1  pgoyette 	  /* Ensure relocate_section is called.  */
   7281      1.3  christos 	  isec->flags |= SEC_RELOC;
   7282      1.1  christos 	}
   7283      1.1  christos       newsize = trampoff + relax_info->workaround_size;
   7284      1.1  christos     }
   7285      1.1  christos 
   7286      1.1  christos   if (htab->params->pic_fixup > 0)
   7287      1.1  christos     {
   7288      1.1  christos       picfixup_size -= relax_info->picfixup_size;
   7289      1.1  christos       if (picfixup_size != 0)
   7290      1.1  christos 	relax_info->picfixup_size += picfixup_size;
   7291      1.1  christos       newsize += relax_info->picfixup_size;
   7292      1.1  christos     }
   7293      1.1  christos 
   7294      1.1  christos   if (changes != 0 || picfixup_size != 0 || workaround_change)
   7295      1.1  christos     isec->size = newsize;
   7296      1.1  christos 
   7297      1.1  christos   if (isymbuf != NULL
   7298      1.1  christos       && symtab_hdr->contents != (unsigned char *) isymbuf)
   7299      1.1  christos     {
   7300      1.1  christos       if (! link_info->keep_memory)
   7301      1.1  christos 	free (isymbuf);
   7302      1.1  christos       else
   7303      1.1  christos 	{
   7304      1.1  christos 	  /* Cache the symbols for elf_link_input_bfd.  */
   7305      1.1  christos 	  symtab_hdr->contents = (unsigned char *) isymbuf;
   7306      1.1  christos 	}
   7307  1.3.2.1  pgoyette     }
   7308      1.1  christos 
   7309      1.1  christos   if (contents != NULL
   7310      1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7311      1.1  christos     {
   7312      1.1  christos       if (!changes && !link_info->keep_memory)
   7313      1.1  christos 	free (contents);
   7314      1.1  christos       else
   7315      1.1  christos 	{
   7316      1.1  christos 	  /* Cache the section contents for elf_link_input_bfd.  */
   7317      1.1  christos 	  elf_section_data (isec)->this_hdr.contents = contents;
   7318      1.1  christos 	}
   7319      1.1  christos     }
   7320      1.1  christos 
   7321      1.1  christos   changes += picfixup_size;
   7322      1.1  christos   if (changes != 0)
   7323      1.1  christos     {
   7324      1.1  christos       /* Append sufficient NOP relocs so we can write out relocation
   7325      1.1  christos 	 information for the trampolines.  */
   7326      1.1  christos       Elf_Internal_Shdr *rel_hdr;
   7327      1.1  christos       Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
   7328      1.1  christos 						  * sizeof (*new_relocs));
   7329      1.1  christos       unsigned ix;
   7330      1.1  christos 
   7331      1.1  christos       if (!new_relocs)
   7332      1.1  christos 	goto error_return;
   7333      1.1  christos       memcpy (new_relocs, internal_relocs,
   7334      1.3  christos 	      isec->reloc_count * sizeof (*new_relocs));
   7335      1.3  christos       for (ix = changes; ix--;)
   7336      1.1  christos 	{
   7337      1.1  christos 	  irel = new_relocs + ix + isec->reloc_count;
   7338      1.3  christos 
   7339      1.1  christos 	  irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7340      1.1  christos 	}
   7341      1.1  christos       if (internal_relocs != elf_section_data (isec)->relocs)
   7342  1.3.2.1  pgoyette 	free (internal_relocs);
   7343      1.3  christos       elf_section_data (isec)->relocs = new_relocs;
   7344  1.3.2.1  pgoyette       isec->reloc_count += changes;
   7345  1.3.2.1  pgoyette       rel_hdr = _bfd_elf_single_rel_hdr (isec);
   7346      1.3  christos       rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
   7347      1.3  christos     }
   7348      1.1  christos   else if (internal_relocs != NULL
   7349      1.1  christos 	   && elf_section_data (isec)->relocs != internal_relocs)
   7350      1.1  christos     free (internal_relocs);
   7351      1.1  christos 
   7352      1.1  christos   *again = changes != 0 || workaround_change;
   7353      1.1  christos   return TRUE;
   7354      1.1  christos 
   7355      1.1  christos  error_return:
   7356      1.1  christos   while (branch_fixups != NULL)
   7357      1.1  christos     {
   7358      1.1  christos       struct one_branch_fixup *f = branch_fixups;
   7359      1.1  christos       branch_fixups = branch_fixups->next;
   7360      1.1  christos       free (f);
   7361      1.1  christos     }
   7362      1.1  christos   if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
   7363      1.1  christos     free (isymbuf);
   7364      1.1  christos   if (contents != NULL
   7365      1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7366      1.1  christos     free (contents);
   7367      1.1  christos   if (internal_relocs != NULL
   7368      1.1  christos       && elf_section_data (isec)->relocs != internal_relocs)
   7369      1.1  christos     free (internal_relocs);
   7370      1.1  christos   return FALSE;
   7371      1.1  christos }
   7372      1.1  christos 
   7373      1.1  christos /* What to do when ld finds relocations against symbols defined in
   7375      1.1  christos    discarded sections.  */
   7376      1.1  christos 
   7377      1.1  christos static unsigned int
   7378      1.1  christos ppc_elf_action_discarded (asection *sec)
   7379      1.1  christos {
   7380      1.1  christos   if (strcmp (".fixup", sec->name) == 0)
   7381      1.1  christos     return 0;
   7382      1.1  christos 
   7383      1.1  christos   if (strcmp (".got2", sec->name) == 0)
   7384      1.1  christos     return 0;
   7385      1.1  christos 
   7386      1.1  christos   return _bfd_elf_default_action_discarded (sec);
   7387      1.1  christos }
   7388      1.1  christos 
   7389      1.1  christos /* Fill in the address for a pointer generated in a linker section.  */
   7391      1.1  christos 
   7392      1.1  christos static bfd_vma
   7393      1.1  christos elf_finish_pointer_linker_section (bfd *input_bfd,
   7394      1.1  christos 				   elf_linker_section_t *lsect,
   7395      1.1  christos 				   struct elf_link_hash_entry *h,
   7396      1.1  christos 				   bfd_vma relocation,
   7397      1.1  christos 				   const Elf_Internal_Rela *rel)
   7398      1.1  christos {
   7399      1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   7400      1.1  christos 
   7401      1.1  christos   BFD_ASSERT (lsect != NULL);
   7402      1.1  christos 
   7403      1.1  christos   if (h != NULL)
   7404      1.1  christos     {
   7405      1.1  christos       /* Handle global symbol.  */
   7406      1.1  christos       struct ppc_elf_link_hash_entry *eh;
   7407      1.1  christos 
   7408      1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   7409      1.1  christos       BFD_ASSERT (eh->elf.def_regular);
   7410      1.1  christos       linker_section_ptr = eh->linker_section_pointer;
   7411      1.1  christos     }
   7412      1.1  christos   else
   7413      1.1  christos     {
   7414      1.1  christos       /* Handle local symbol.  */
   7415      1.1  christos       unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   7416      1.1  christos 
   7417      1.1  christos       BFD_ASSERT (is_ppc_elf (input_bfd));
   7418      1.1  christos       BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
   7419      1.1  christos       linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
   7420      1.1  christos     }
   7421      1.1  christos 
   7422      1.1  christos   linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
   7423      1.1  christos 							rel->r_addend,
   7424      1.1  christos 							lsect);
   7425      1.1  christos   BFD_ASSERT (linker_section_ptr != NULL);
   7426      1.1  christos 
   7427      1.1  christos   /* Offset will always be a multiple of four, so use the bottom bit
   7428      1.1  christos      as a "written" flag.  */
   7429      1.1  christos   if ((linker_section_ptr->offset & 1) == 0)
   7430      1.1  christos     {
   7431      1.1  christos       bfd_put_32 (lsect->section->owner,
   7432      1.1  christos 		  relocation + linker_section_ptr->addend,
   7433      1.1  christos 		  lsect->section->contents + linker_section_ptr->offset);
   7434      1.1  christos       linker_section_ptr->offset += 1;
   7435      1.1  christos     }
   7436      1.1  christos 
   7437      1.1  christos   relocation = (lsect->section->output_section->vma
   7438      1.1  christos 		+ lsect->section->output_offset
   7439      1.1  christos 		+ linker_section_ptr->offset - 1
   7440      1.1  christos 		- SYM_VAL (lsect->sym));
   7441      1.1  christos 
   7442      1.1  christos #ifdef DEBUG
   7443      1.1  christos   fprintf (stderr,
   7444      1.1  christos 	   "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
   7445      1.1  christos 	   lsect->name, (long) relocation, (long) relocation);
   7446      1.1  christos #endif
   7447      1.1  christos 
   7448      1.1  christos   return relocation;
   7449      1.1  christos }
   7450      1.1  christos 
   7451      1.1  christos #define PPC_LO(v) ((v) & 0xffff)
   7452      1.1  christos #define PPC_HI(v) (((v) >> 16) & 0xffff)
   7453      1.1  christos #define PPC_HA(v) PPC_HI ((v) + 0x8000)
   7454      1.1  christos 
   7455      1.1  christos static void
   7456      1.1  christos write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
   7457      1.1  christos 		  struct bfd_link_info *info)
   7458      1.1  christos {
   7459      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   7460      1.1  christos   bfd *output_bfd = info->output_bfd;
   7461      1.1  christos   bfd_vma plt;
   7462      1.1  christos 
   7463      1.1  christos   plt = ((ent->plt.offset & ~1)
   7464      1.1  christos 	 + plt_sec->output_section->vma
   7465      1.1  christos 	 + plt_sec->output_offset);
   7466      1.1  christos 
   7467      1.1  christos   if (info->shared)
   7468      1.1  christos     {
   7469      1.1  christos       bfd_vma got = 0;
   7470      1.1  christos 
   7471      1.1  christos       if (ent->addend >= 32768)
   7472      1.3  christos 	got = (ent->addend
   7473      1.1  christos 	       + ent->sec->output_section->vma
   7474      1.1  christos 	       + ent->sec->output_offset);
   7475      1.1  christos       else if (htab->elf.hgot != NULL)
   7476      1.1  christos 	got = SYM_VAL (htab->elf.hgot);
   7477      1.1  christos 
   7478      1.1  christos       plt -= got;
   7479      1.1  christos 
   7480      1.1  christos       if (plt + 0x8000 < 0x10000)
   7481      1.1  christos 	{
   7482      1.1  christos 	  bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
   7483      1.1  christos 	  p += 4;
   7484      1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_11, p);
   7485      1.1  christos 	  p += 4;
   7486      1.1  christos 	  bfd_put_32 (output_bfd, BCTR, p);
   7487      1.1  christos 	  p += 4;
   7488      1.1  christos 	  bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
   7489      1.1  christos 	  p += 4;
   7490      1.1  christos 	}
   7491      1.1  christos       else
   7492      1.1  christos 	{
   7493      1.1  christos 	  bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
   7494      1.1  christos 	  p += 4;
   7495      1.1  christos 	  bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7496      1.1  christos 	  p += 4;
   7497      1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_11, p);
   7498      1.1  christos 	  p += 4;
   7499      1.1  christos 	  bfd_put_32 (output_bfd, BCTR, p);
   7500      1.1  christos 	  p += 4;
   7501      1.1  christos 	}
   7502      1.1  christos     }
   7503      1.1  christos   else
   7504      1.1  christos     {
   7505      1.1  christos       bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
   7506      1.1  christos       p += 4;
   7507      1.1  christos       bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7508      1.1  christos       p += 4;
   7509      1.1  christos       bfd_put_32 (output_bfd, MTCTR_11, p);
   7510      1.1  christos       p += 4;
   7511      1.1  christos       bfd_put_32 (output_bfd, BCTR, p);
   7512      1.1  christos       p += 4;
   7513      1.1  christos     }
   7514      1.1  christos }
   7515      1.1  christos 
   7516      1.1  christos /* Return true if symbol is defined statically.  */
   7517      1.1  christos 
   7518      1.1  christos static bfd_boolean
   7519      1.1  christos is_static_defined (struct elf_link_hash_entry *h)
   7520      1.1  christos {
   7521      1.1  christos   return ((h->root.type == bfd_link_hash_defined
   7522      1.1  christos 	   || h->root.type == bfd_link_hash_defweak)
   7523      1.1  christos 	  && h->root.u.def.section != NULL
   7524      1.1  christos 	  && h->root.u.def.section->output_section != NULL);
   7525      1.1  christos }
   7526      1.1  christos 
   7527      1.1  christos /* If INSN is an opcode that may be used with an @tls operand, return
   7528      1.1  christos    the transformed insn for TLS optimisation, otherwise return 0.  If
   7529      1.1  christos    REG is non-zero only match an insn with RB or RA equal to REG.  */
   7530      1.1  christos 
   7531      1.1  christos unsigned int
   7532      1.1  christos _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
   7533      1.1  christos {
   7534      1.1  christos   unsigned int rtra;
   7535      1.1  christos 
   7536      1.1  christos   if ((insn & (0x3f << 26)) != 31 << 26)
   7537      1.1  christos     return 0;
   7538      1.1  christos 
   7539      1.1  christos   if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
   7540      1.1  christos     rtra = insn & ((1 << 26) - (1 << 16));
   7541      1.1  christos   else if (((insn >> 16) & 0x1f) == reg)
   7542      1.1  christos     rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
   7543      1.1  christos   else
   7544      1.1  christos     return 0;
   7545      1.1  christos 
   7546      1.1  christos   if ((insn & (0x3ff << 1)) == 266 << 1)
   7547      1.1  christos     /* add -> addi.  */
   7548      1.1  christos     insn = 14 << 26;
   7549      1.1  christos   else if ((insn & (0x1f << 1)) == 23 << 1
   7550      1.1  christos 	   && ((insn & (0x1f << 6)) < 14 << 6
   7551      1.1  christos 	       || ((insn & (0x1f << 6)) >= 16 << 6
   7552      1.1  christos 		   && (insn & (0x1f << 6)) < 24 << 6)))
   7553      1.1  christos     /* load and store indexed -> dform.  */
   7554      1.1  christos     insn = (32 | ((insn >> 6) & 0x1f)) << 26;
   7555      1.1  christos   else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
   7556      1.1  christos     /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu.  */
   7557      1.1  christos     insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
   7558      1.1  christos   else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
   7559      1.1  christos     /* lwax -> lwa.  */
   7560      1.1  christos     insn = (58 << 26) | 2;
   7561      1.1  christos   else
   7562      1.1  christos     return 0;
   7563      1.1  christos   insn |= rtra;
   7564      1.1  christos   return insn;
   7565      1.1  christos }
   7566      1.1  christos 
   7567      1.1  christos /* If INSN is an opcode that may be used with an @tprel operand, return
   7568      1.1  christos    the transformed insn for an undefined weak symbol, ie. with the
   7569      1.1  christos    thread pointer REG operand removed.  Otherwise return 0.  */
   7570      1.1  christos 
   7571      1.1  christos unsigned int
   7572      1.1  christos _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
   7573      1.1  christos {
   7574      1.1  christos   if ((insn & (0x1f << 16)) == reg << 16
   7575      1.1  christos       && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
   7576      1.1  christos 	  || (insn & (0x3f << 26)) == 15u << 26 /* addis */
   7577      1.1  christos 	  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   7578      1.1  christos 	  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   7579      1.1  christos 	  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   7580      1.1  christos 	  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   7581      1.1  christos 	  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   7582      1.1  christos 	  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   7583      1.1  christos 	  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   7584      1.1  christos 	  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   7585      1.1  christos 	  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   7586      1.1  christos 	  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   7587      1.1  christos 	  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   7588      1.1  christos 	  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   7589      1.1  christos 	  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   7590      1.1  christos 	  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   7591      1.1  christos 	      && (insn & 3) != 1)
   7592      1.1  christos 	  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   7593      1.1  christos 	      && ((insn & 3) == 0 || (insn & 3) == 3))))
   7594      1.1  christos     {
   7595      1.1  christos       insn &= ~(0x1f << 16);
   7596      1.1  christos     }
   7597      1.1  christos   else if ((insn & (0x1f << 21)) == reg << 21
   7598      1.1  christos 	   && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
   7599      1.1  christos 	       || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
   7600      1.1  christos 	       || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
   7601      1.1  christos     {
   7602      1.1  christos       insn &= ~(0x1f << 21);
   7603      1.1  christos       insn |= (insn & (0x1f << 16)) << 5;
   7604      1.1  christos       if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
   7605      1.1  christos 	insn -= 2 >> 26;  /* convert to ori,oris */
   7606      1.1  christos     }
   7607      1.1  christos   else
   7608      1.1  christos     insn = 0;
   7609      1.1  christos   return insn;
   7610      1.1  christos }
   7611      1.1  christos 
   7612      1.1  christos static bfd_boolean
   7613      1.1  christos is_insn_ds_form (unsigned int insn)
   7614      1.1  christos {
   7615      1.1  christos   return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
   7616      1.1  christos 	  || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
   7617      1.1  christos 	  || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
   7618      1.1  christos 	  || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
   7619      1.1  christos }
   7620      1.1  christos 
   7621      1.1  christos static bfd_boolean
   7622      1.1  christos is_insn_dq_form (unsigned int insn)
   7623      1.1  christos {
   7624      1.1  christos   return (insn & (0x3f << 26)) == 56u << 26; /* lq */
   7625      1.1  christos }
   7626      1.1  christos 
   7627      1.1  christos /* The RELOCATE_SECTION function is called by the ELF backend linker
   7628      1.1  christos    to handle the relocations for a section.
   7629      1.1  christos 
   7630      1.1  christos    The relocs are always passed as Rela structures; if the section
   7631      1.1  christos    actually uses Rel structures, the r_addend field will always be
   7632      1.1  christos    zero.
   7633      1.1  christos 
   7634      1.1  christos    This function is responsible for adjust the section contents as
   7635      1.1  christos    necessary, and (if using Rela relocs and generating a
   7636      1.1  christos    relocatable output file) adjusting the reloc addend as
   7637      1.1  christos    necessary.
   7638      1.1  christos 
   7639      1.1  christos    This function does not have to worry about setting the reloc
   7640      1.1  christos    address or the reloc symbol index.
   7641      1.1  christos 
   7642      1.1  christos    LOCAL_SYMS is a pointer to the swapped in local symbols.
   7643      1.1  christos 
   7644      1.1  christos    LOCAL_SECTIONS is an array giving the section in the input file
   7645      1.1  christos    corresponding to the st_shndx field of each local symbol.
   7646      1.1  christos 
   7647      1.1  christos    The global hash table entry for the global symbols can be found
   7648      1.1  christos    via elf_sym_hashes (input_bfd).
   7649      1.1  christos 
   7650      1.1  christos    When generating relocatable output, this function must handle
   7651      1.1  christos    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
   7652      1.1  christos    going to be the section symbol corresponding to the output
   7653      1.1  christos    section, which means that the addend must be adjusted
   7654      1.1  christos    accordingly.  */
   7655      1.1  christos 
   7656      1.1  christos static bfd_boolean
   7657      1.1  christos ppc_elf_relocate_section (bfd *output_bfd,
   7658      1.1  christos 			  struct bfd_link_info *info,
   7659      1.1  christos 			  bfd *input_bfd,
   7660      1.1  christos 			  asection *input_section,
   7661  1.3.2.1  pgoyette 			  bfd_byte *contents,
   7662  1.3.2.1  pgoyette 			  Elf_Internal_Rela *relocs,
   7663      1.1  christos 			  Elf_Internal_Sym *local_syms,
   7664      1.1  christos 			  asection **local_sections)
   7665      1.1  christos {
   7666      1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   7667      1.1  christos   struct elf_link_hash_entry **sym_hashes;
   7668      1.1  christos   struct ppc_elf_link_hash_table *htab;
   7669      1.1  christos   Elf_Internal_Rela *rel;
   7670      1.1  christos   Elf_Internal_Rela *relend;
   7671      1.1  christos   Elf_Internal_Rela outrel;
   7672      1.1  christos   asection *got2;
   7673      1.1  christos   bfd_vma *local_got_offsets;
   7674      1.1  christos   bfd_boolean ret = TRUE;
   7675      1.1  christos   bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
   7676      1.1  christos   bfd_boolean is_vxworks_tls;
   7677      1.1  christos   unsigned int picfixup_size = 0;
   7678      1.1  christos   struct ppc_elf_relax_info *relax_info = NULL;
   7679      1.1  christos 
   7680      1.1  christos #ifdef DEBUG
   7681      1.1  christos   _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
   7682      1.1  christos 		      "%ld relocations%s",
   7683      1.1  christos 		      input_bfd, input_section,
   7684      1.1  christos 		      (long) input_section->reloc_count,
   7685      1.1  christos 		      (info->relocatable) ? " (relocatable)" : "");
   7686      1.1  christos #endif
   7687  1.3.2.1  pgoyette 
   7688  1.3.2.1  pgoyette   got2 = bfd_get_section_by_name (input_bfd, ".got2");
   7689      1.1  christos 
   7690      1.1  christos   /* Initialize howto table if not already done.  */
   7691      1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   7692      1.1  christos     ppc_elf_howto_init ();
   7693      1.1  christos 
   7694      1.1  christos   htab = ppc_elf_hash_table (info);
   7695      1.1  christos   local_got_offsets = elf_local_got_offsets (input_bfd);
   7696      1.1  christos   symtab_hdr = &elf_symtab_hdr (input_bfd);
   7697      1.1  christos   sym_hashes = elf_sym_hashes (input_bfd);
   7698      1.1  christos   /* We have to handle relocations in vxworks .tls_vars sections
   7699      1.1  christos      specially, because the dynamic loader is 'weird'.  */
   7700      1.1  christos   is_vxworks_tls = (htab->is_vxworks && info->shared
   7701      1.1  christos 		    && !strcmp (input_section->output_section->name,
   7702      1.1  christos 				".tls_vars"));
   7703      1.1  christos   if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
   7704      1.1  christos     relax_info = elf_section_data (input_section)->sec_info;
   7705      1.1  christos   rel = relocs;
   7706      1.1  christos   relend = relocs + input_section->reloc_count;
   7707      1.1  christos   for (; rel < relend; rel++)
   7708      1.3  christos     {
   7709      1.1  christos       enum elf_ppc_reloc_type r_type;
   7710      1.1  christos       bfd_vma addend;
   7711      1.1  christos       bfd_reloc_status_type r;
   7712      1.1  christos       Elf_Internal_Sym *sym;
   7713      1.1  christos       asection *sec;
   7714      1.1  christos       struct elf_link_hash_entry *h;
   7715      1.1  christos       const char *sym_name;
   7716      1.1  christos       reloc_howto_type *howto;
   7717      1.1  christos       unsigned long r_symndx;
   7718      1.1  christos       bfd_vma relocation;
   7719      1.1  christos       bfd_vma branch_bit, from;
   7720      1.1  christos       bfd_boolean unresolved_reloc;
   7721      1.1  christos       bfd_boolean warned;
   7722      1.1  christos       unsigned int tls_type, tls_mask, tls_gd;
   7723      1.1  christos       struct plt_entry **ifunc;
   7724      1.1  christos       struct reloc_howto_struct alt_howto;
   7725      1.1  christos 
   7726      1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   7727      1.1  christos       sym = NULL;
   7728      1.1  christos       sec = NULL;
   7729      1.1  christos       h = NULL;
   7730      1.1  christos       unresolved_reloc = FALSE;
   7731      1.1  christos       warned = FALSE;
   7732      1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   7733      1.1  christos 
   7734      1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   7735      1.1  christos 	{
   7736      1.1  christos 	  sym = local_syms + r_symndx;
   7737      1.1  christos 	  sec = local_sections[r_symndx];
   7738      1.1  christos 	  sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
   7739      1.1  christos 
   7740      1.1  christos 	  relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
   7741      1.1  christos 	}
   7742      1.1  christos       else
   7743      1.1  christos 	{
   7744      1.1  christos 	  bfd_boolean ignored;
   7745      1.1  christos 
   7746      1.1  christos 	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
   7747      1.1  christos 				   r_symndx, symtab_hdr, sym_hashes,
   7748      1.1  christos 				   h, sec, relocation,
   7749      1.1  christos 				   unresolved_reloc, warned, ignored);
   7750      1.1  christos 
   7751      1.1  christos 	  sym_name = h->root.root.string;
   7752      1.1  christos 	}
   7753      1.1  christos 
   7754      1.1  christos       if (sec != NULL && discarded_section (sec))
   7755      1.1  christos 	{
   7756      1.1  christos 	  /* For relocs against symbols from removed linkonce sections,
   7757      1.1  christos 	     or sections discarded by a linker script, we just want the
   7758      1.1  christos 	     section contents zeroed.  Avoid any special processing.  */
   7759      1.1  christos 	  howto = NULL;
   7760      1.3  christos 	  if (r_type < R_PPC_max)
   7761      1.3  christos 	    howto = ppc_elf_howto_table[r_type];
   7762      1.3  christos 	  RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
   7763      1.3  christos 					   rel, 1, relend, howto, 0, contents);
   7764      1.1  christos 	}
   7765      1.1  christos 
   7766      1.1  christos       if (info->relocatable)
   7767      1.1  christos 	{
   7768      1.1  christos 	  if (got2 != NULL
   7769      1.1  christos 	      && r_type == R_PPC_PLTREL24
   7770      1.1  christos 	      && rel->r_addend != 0)
   7771      1.1  christos 	    {
   7772      1.1  christos 	      /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   7773      1.1  christos 		 addend specifies the GOT pointer offset within .got2.  */
   7774      1.1  christos 	      rel->r_addend += got2->output_offset;
   7775      1.1  christos 	    }
   7776      1.1  christos 	  if (r_type != R_PPC_RELAX_PLT
   7777      1.1  christos 	      && r_type != R_PPC_RELAX_PLTREL24
   7778      1.1  christos 	      && r_type != R_PPC_RELAX)
   7779      1.1  christos 	    continue;
   7780      1.1  christos 	}
   7781      1.1  christos 
   7782      1.1  christos       /* TLS optimizations.  Replace instruction sequences and relocs
   7783      1.1  christos 	 based on information we collected in tls_optimize.  We edit
   7784      1.1  christos 	 RELOCS so that --emit-relocs will output something sensible
   7785      1.1  christos 	 for the final instruction stream.  */
   7786      1.1  christos       tls_mask = 0;
   7787      1.1  christos       tls_gd = 0;
   7788      1.1  christos       if (h != NULL)
   7789      1.1  christos 	tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
   7790      1.1  christos       else if (local_got_offsets != NULL)
   7791      1.1  christos 	{
   7792      1.1  christos 	  struct plt_entry **local_plt;
   7793      1.1  christos 	  char *lgot_masks;
   7794      1.1  christos 	  local_plt
   7795      1.1  christos 	    = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
   7796      1.1  christos 	  lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   7797      1.1  christos 	  tls_mask = lgot_masks[r_symndx];
   7798      1.1  christos 	}
   7799      1.1  christos 
   7800      1.1  christos       /* Ensure reloc mapping code below stays sane.  */
   7801      1.1  christos       if ((R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TLSGD16 & 3)
   7802      1.1  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
   7803      1.1  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
   7804      1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
   7805      1.1  christos 	  || (R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TPREL16 & 3)
   7806      1.1  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
   7807      1.1  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
   7808      1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
   7809      1.1  christos 	abort ();
   7810      1.1  christos       switch (r_type)
   7811      1.1  christos 	{
   7812      1.1  christos 	default:
   7813      1.1  christos 	  break;
   7814      1.1  christos 
   7815      1.1  christos 	case R_PPC_GOT_TPREL16:
   7816      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   7817      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   7818      1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   7819      1.1  christos 	    {
   7820      1.1  christos 	      bfd_vma insn;
   7821      1.1  christos 
   7822      1.1  christos 	      insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
   7823      1.1  christos 	      insn &= 31 << 21;
   7824      1.1  christos 	      insn |= 0x3c020000;	/* addis 0,2,0 */
   7825      1.1  christos 	      bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
   7826      1.1  christos 	      r_type = R_PPC_TPREL16_HA;
   7827      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7828      1.1  christos 	    }
   7829      1.1  christos 	  break;
   7830      1.1  christos 
   7831      1.1  christos 	case R_PPC_TLS:
   7832      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   7833      1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   7834      1.1  christos 	    {
   7835      1.1  christos 	      bfd_vma insn;
   7836      1.1  christos 
   7837      1.1  christos 	      insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   7838      1.1  christos 	      insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
   7839      1.1  christos 	      if (insn == 0)
   7840      1.1  christos 		abort ();
   7841      1.1  christos 	      bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   7842      1.1  christos 	      r_type = R_PPC_TPREL16_LO;
   7843      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7844      1.1  christos 
   7845      1.1  christos 	      /* Was PPC_TLS which sits on insn boundary, now
   7846      1.1  christos 		 PPC_TPREL16_LO which is at low-order half-word.  */
   7847      1.1  christos 	      rel->r_offset += d_offset;
   7848      1.1  christos 	    }
   7849      1.1  christos 	  break;
   7850      1.1  christos 
   7851      1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   7852      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   7853  1.3.2.1  pgoyette 	  tls_gd = TLS_TPRELGD;
   7854      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   7855      1.1  christos 	    goto tls_gdld_hi;
   7856      1.1  christos 	  break;
   7857      1.1  christos 
   7858      1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   7859      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   7860      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   7861      1.1  christos 	    {
   7862      1.1  christos 	    tls_gdld_hi:
   7863      1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   7864      1.1  christos 		r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   7865      1.1  christos 			  + R_PPC_GOT_TPREL16);
   7866      1.1  christos 	      else
   7867      1.1  christos 		{
   7868      1.1  christos 		  rel->r_offset -= d_offset;
   7869      1.1  christos 		  bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
   7870      1.1  christos 		  r_type = R_PPC_NONE;
   7871      1.1  christos 		}
   7872      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7873      1.1  christos 	    }
   7874      1.1  christos 	  break;
   7875      1.1  christos 
   7876      1.1  christos 	case R_PPC_GOT_TLSGD16:
   7877      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   7878      1.1  christos 	  tls_gd = TLS_TPRELGD;
   7879      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   7880      1.1  christos 	    goto tls_ldgd_opt;
   7881      1.1  christos 	  break;
   7882      1.1  christos 
   7883      1.1  christos 	case R_PPC_GOT_TLSLD16:
   7884      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   7885      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   7886  1.3.2.1  pgoyette 	    {
   7887  1.3.2.1  pgoyette 	      unsigned int insn1, insn2;
   7888  1.3.2.1  pgoyette 	      bfd_vma offset;
   7889  1.3.2.1  pgoyette 
   7890  1.3.2.1  pgoyette 	    tls_ldgd_opt:
   7891  1.3.2.1  pgoyette 	      offset = (bfd_vma) -1;
   7892      1.1  christos 	      /* If not using the newer R_PPC_TLSGD/LD to mark
   7893      1.1  christos 		 __tls_get_addr calls, we must trust that the call
   7894      1.1  christos 		 stays with its arg setup insns, ie. that the next
   7895  1.3.2.1  pgoyette 		 reloc is the __tls_get_addr call associated with
   7896      1.1  christos 		 the current reloc.  Edit both insns.  */
   7897      1.1  christos 	      if (input_section->has_tls_get_addr_call
   7898      1.1  christos 		  && rel + 1 < relend
   7899      1.1  christos 		  && branch_reloc_hash_match (input_bfd, rel + 1,
   7900      1.1  christos 					      htab->tls_get_addr))
   7901      1.1  christos 		offset = rel[1].r_offset;
   7902      1.1  christos 	      /* We read the low GOT_TLS insn because we need to keep
   7903      1.1  christos 		 the destination reg.  It may be something other than
   7904      1.1  christos 		 the usual r3, and moved to r3 before the call by
   7905      1.1  christos 		 intervening code.  */
   7906      1.1  christos 	      insn1 = bfd_get_32 (output_bfd,
   7907      1.1  christos 				  contents + rel->r_offset - d_offset);
   7908      1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   7909      1.1  christos 		{
   7910  1.3.2.1  pgoyette 		  /* IE */
   7911  1.3.2.1  pgoyette 		  insn1 &= (0x1f << 21) | (0x1f << 16);
   7912      1.1  christos 		  insn1 |= 32 << 26;	/* lwz */
   7913      1.1  christos 		  if (offset != (bfd_vma) -1)
   7914      1.1  christos 		    {
   7915      1.1  christos 		      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   7916      1.1  christos 		      insn2 = 0x7c631214;	/* add 3,3,2 */
   7917      1.1  christos 		      bfd_put_32 (output_bfd, insn2, contents + offset);
   7918      1.1  christos 		    }
   7919      1.1  christos 		  r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   7920      1.1  christos 			    + R_PPC_GOT_TPREL16);
   7921      1.1  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7922      1.1  christos 		}
   7923      1.1  christos 	      else
   7924      1.1  christos 		{
   7925      1.1  christos 		  /* LE */
   7926      1.1  christos 		  insn1 &= 0x1f << 21;
   7927      1.1  christos 		  insn1 |= 0x3c020000;	/* addis r,2,0 */
   7928      1.1  christos 		  if (tls_gd == 0)
   7929      1.1  christos 		    {
   7930      1.1  christos 		      /* Was an LD reloc.  */
   7931      1.1  christos 		      for (r_symndx = 0;
   7932      1.1  christos 			   r_symndx < symtab_hdr->sh_info;
   7933      1.1  christos 			   r_symndx++)
   7934      1.1  christos 			if (local_sections[r_symndx] == sec)
   7935      1.1  christos 			  break;
   7936      1.1  christos 		      if (r_symndx >= symtab_hdr->sh_info)
   7937      1.1  christos 			r_symndx = STN_UNDEF;
   7938      1.1  christos 		      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   7939      1.1  christos 		      if (r_symndx != STN_UNDEF)
   7940      1.1  christos 			rel->r_addend -= (local_syms[r_symndx].st_value
   7941      1.1  christos 					  + sec->output_offset
   7942      1.1  christos 					  + sec->output_section->vma);
   7943      1.1  christos 		    }
   7944      1.1  christos 		  r_type = R_PPC_TPREL16_HA;
   7945      1.1  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7946      1.1  christos 		  if (offset != (bfd_vma) -1)
   7947      1.1  christos 		    {
   7948      1.1  christos 		      rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   7949      1.1  christos 		      rel[1].r_offset = offset + d_offset;
   7950      1.1  christos 		      rel[1].r_addend = rel->r_addend;
   7951      1.1  christos 		      insn2 = 0x38630000;	/* addi 3,3,0 */
   7952      1.1  christos 		      bfd_put_32 (output_bfd, insn2, contents + offset);
   7953      1.1  christos 		    }
   7954      1.1  christos 		}
   7955      1.1  christos 	      bfd_put_32 (output_bfd, insn1,
   7956      1.1  christos 			  contents + rel->r_offset - d_offset);
   7957      1.1  christos 	      if (tls_gd == 0)
   7958      1.1  christos 		{
   7959      1.1  christos 		  /* We changed the symbol on an LD reloc.  Start over
   7960      1.1  christos 		     in order to get h, sym, sec etc. right.  */
   7961      1.1  christos 		  rel--;
   7962      1.1  christos 		  continue;
   7963      1.1  christos 		}
   7964      1.1  christos 	    }
   7965      1.1  christos 	  break;
   7966      1.1  christos 
   7967      1.1  christos 	case R_PPC_TLSGD:
   7968      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   7969      1.1  christos 	    {
   7970      1.1  christos 	      unsigned int insn2;
   7971      1.1  christos 	      bfd_vma offset = rel->r_offset;
   7972      1.1  christos 
   7973      1.1  christos 	      if ((tls_mask & TLS_TPRELGD) != 0)
   7974      1.1  christos 		{
   7975      1.1  christos 		  /* IE */
   7976      1.1  christos 		  r_type = R_PPC_NONE;
   7977      1.1  christos 		  insn2 = 0x7c631214;	/* add 3,3,2 */
   7978      1.1  christos 		}
   7979      1.1  christos 	      else
   7980      1.1  christos 		{
   7981      1.1  christos 		  /* LE */
   7982      1.1  christos 		  r_type = R_PPC_TPREL16_LO;
   7983      1.1  christos 		  rel->r_offset += d_offset;
   7984      1.1  christos 		  insn2 = 0x38630000;	/* addi 3,3,0 */
   7985      1.1  christos 		}
   7986      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7987      1.1  christos 	      bfd_put_32 (output_bfd, insn2, contents + offset);
   7988      1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   7989      1.1  christos 	      BFD_ASSERT (offset == rel[1].r_offset);
   7990      1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   7991      1.1  christos 	    }
   7992      1.1  christos 	  break;
   7993      1.1  christos 
   7994      1.1  christos 	case R_PPC_TLSLD:
   7995      1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   7996      1.1  christos 	    {
   7997      1.1  christos 	      unsigned int insn2;
   7998      1.1  christos 
   7999      1.1  christos 	      for (r_symndx = 0;
   8000      1.1  christos 		   r_symndx < symtab_hdr->sh_info;
   8001      1.1  christos 		   r_symndx++)
   8002      1.1  christos 		if (local_sections[r_symndx] == sec)
   8003      1.1  christos 		  break;
   8004      1.1  christos 	      if (r_symndx >= symtab_hdr->sh_info)
   8005      1.1  christos 		r_symndx = STN_UNDEF;
   8006      1.1  christos 	      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   8007      1.1  christos 	      if (r_symndx != STN_UNDEF)
   8008      1.1  christos 		rel->r_addend -= (local_syms[r_symndx].st_value
   8009      1.1  christos 				  + sec->output_offset
   8010      1.1  christos 				  + sec->output_section->vma);
   8011      1.1  christos 
   8012      1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   8013      1.1  christos 	      rel->r_offset += d_offset;
   8014      1.1  christos 	      insn2 = 0x38630000;	/* addi 3,3,0 */
   8015      1.1  christos 	      bfd_put_32 (output_bfd, insn2,
   8016      1.1  christos 			  contents + rel->r_offset - d_offset);
   8017      1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   8018      1.1  christos 	      BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
   8019      1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8020      1.1  christos 	      rel--;
   8021      1.1  christos 	      continue;
   8022      1.1  christos 	    }
   8023      1.1  christos 	  break;
   8024      1.1  christos 	}
   8025      1.1  christos 
   8026      1.1  christos       /* Handle other relocations that tweak non-addend part of insn.  */
   8027      1.1  christos       branch_bit = 0;
   8028      1.1  christos       switch (r_type)
   8029      1.1  christos 	{
   8030      1.1  christos 	default:
   8031      1.1  christos 	  break;
   8032      1.1  christos 
   8033      1.1  christos 	  /* Branch taken prediction relocations.  */
   8034      1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   8035      1.1  christos 	case R_PPC_REL14_BRTAKEN:
   8036      1.1  christos 	  branch_bit = BRANCH_PREDICT_BIT;
   8037      1.1  christos 	  /* Fall thru */
   8038      1.1  christos 
   8039      1.1  christos 	  /* Branch not taken prediction relocations.  */
   8040      1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   8041      1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   8042      1.1  christos 	  {
   8043      1.1  christos 	    bfd_vma insn;
   8044      1.1  christos 
   8045      1.1  christos 	    insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   8046  1.3.2.1  pgoyette 	    insn &= ~BRANCH_PREDICT_BIT;
   8047  1.3.2.1  pgoyette 	    insn |= branch_bit;
   8048  1.3.2.1  pgoyette 
   8049  1.3.2.1  pgoyette 	    from = (rel->r_offset
   8050  1.3.2.1  pgoyette 		    + input_section->output_offset
   8051  1.3.2.1  pgoyette 		    + input_section->output_section->vma);
   8052  1.3.2.1  pgoyette 
   8053  1.3.2.1  pgoyette 	    /* Invert 'y' bit if not the default.  */
   8054  1.3.2.1  pgoyette 	    if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
   8055  1.3.2.1  pgoyette 	      insn ^= BRANCH_PREDICT_BIT;
   8056  1.3.2.1  pgoyette 
   8057  1.3.2.1  pgoyette 	    bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   8058  1.3.2.1  pgoyette 	    break;
   8059  1.3.2.1  pgoyette 	  }
   8060  1.3.2.1  pgoyette 	}
   8061  1.3.2.1  pgoyette 
   8062  1.3.2.1  pgoyette       if (ELIMINATE_COPY_RELOCS
   8063  1.3.2.1  pgoyette 	  && h != NULL
   8064  1.3.2.1  pgoyette 	  && !h->def_regular
   8065  1.3.2.1  pgoyette 	  && h->protected_def
   8066  1.3.2.1  pgoyette 	  && ppc_elf_hash_entry (h)->has_addr16_ha
   8067  1.3.2.1  pgoyette 	  && ppc_elf_hash_entry (h)->has_addr16_lo
   8068  1.3.2.1  pgoyette 	  && htab->params->pic_fixup > 0)
   8069  1.3.2.1  pgoyette 	{
   8070  1.3.2.1  pgoyette 	  /* Convert lis;addi or lis;load/store accessing a protected
   8071  1.3.2.1  pgoyette 	     variable defined in a shared library to PIC.  */
   8072  1.3.2.1  pgoyette 	  unsigned int insn;
   8073  1.3.2.1  pgoyette 
   8074  1.3.2.1  pgoyette 	  if (r_type == R_PPC_ADDR16_HA)
   8075  1.3.2.1  pgoyette 	    {
   8076  1.3.2.1  pgoyette 	      insn = bfd_get_32 (output_bfd,
   8077  1.3.2.1  pgoyette 				 contents + rel->r_offset - d_offset);
   8078  1.3.2.1  pgoyette 	      if ((insn & (0x3f << 26)) == (15u << 26)
   8079  1.3.2.1  pgoyette 		  && (insn & (0x1f << 16)) == 0 /* lis */)
   8080  1.3.2.1  pgoyette 		{
   8081  1.3.2.1  pgoyette 		  bfd_byte *p;
   8082  1.3.2.1  pgoyette 		  bfd_vma off;
   8083  1.3.2.1  pgoyette 		  bfd_vma got_addr;
   8084  1.3.2.1  pgoyette 
   8085  1.3.2.1  pgoyette 		  p = (contents + input_section->size
   8086  1.3.2.1  pgoyette 		       - relax_info->workaround_size
   8087  1.3.2.1  pgoyette 		       - relax_info->picfixup_size
   8088  1.3.2.1  pgoyette 		       + picfixup_size);
   8089  1.3.2.1  pgoyette 		  off = (p - contents) - (rel->r_offset - d_offset);
   8090  1.3.2.1  pgoyette 		  if (off > 0x1fffffc || (off & 3) != 0)
   8091  1.3.2.1  pgoyette 		    info->callbacks->einfo
   8092  1.3.2.1  pgoyette 		      (_("%P: %H: fixup branch overflow\n"),
   8093  1.3.2.1  pgoyette 		       input_bfd, input_section, rel->r_offset);
   8094  1.3.2.1  pgoyette 
   8095  1.3.2.1  pgoyette 		  bfd_put_32 (output_bfd, B | off,
   8096  1.3.2.1  pgoyette 			      contents + rel->r_offset - d_offset);
   8097  1.3.2.1  pgoyette 		  got_addr = (htab->got->output_section->vma
   8098  1.3.2.1  pgoyette 			      + htab->got->output_offset
   8099  1.3.2.1  pgoyette 			      + (h->got.offset & ~1));
   8100  1.3.2.1  pgoyette 		  rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
   8101  1.3.2.1  pgoyette 		  rel->r_addend = got_addr;
   8102  1.3.2.1  pgoyette 		  rel->r_offset = (p - contents) + d_offset;
   8103  1.3.2.1  pgoyette 		  insn &= ~0xffff;
   8104  1.3.2.1  pgoyette 		  insn |= ((unsigned int )(got_addr + 0x8000) >> 16) & 0xffff;
   8105  1.3.2.1  pgoyette 		  bfd_put_32 (output_bfd, insn, p);
   8106  1.3.2.1  pgoyette 
   8107  1.3.2.1  pgoyette 		  /* Convert lis to lwz, loading address from GOT.  */
   8108  1.3.2.1  pgoyette 		  insn &= ~0xffff;
   8109  1.3.2.1  pgoyette 		  insn ^= (32u ^ 15u) << 26;
   8110  1.3.2.1  pgoyette 		  insn |= (insn & (0x1f << 21)) >> 5;
   8111  1.3.2.1  pgoyette 		  insn |= got_addr & 0xffff;
   8112  1.3.2.1  pgoyette 		  bfd_put_32 (output_bfd, insn, p + 4);
   8113  1.3.2.1  pgoyette 
   8114  1.3.2.1  pgoyette 		  bfd_put_32 (output_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
   8115  1.3.2.1  pgoyette 		  picfixup_size += 12;
   8116  1.3.2.1  pgoyette 
   8117  1.3.2.1  pgoyette 		  /* Use one of the spare relocs, so --emit-relocs
   8118  1.3.2.1  pgoyette 		     output is reasonable.  */
   8119  1.3.2.1  pgoyette 		  memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
   8120  1.3.2.1  pgoyette 		  rel++;
   8121  1.3.2.1  pgoyette 		  rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
   8122  1.3.2.1  pgoyette 		  rel->r_offset += 4;
   8123  1.3.2.1  pgoyette 
   8124  1.3.2.1  pgoyette 		  /* Continue on as if we had a got reloc, to output
   8125  1.3.2.1  pgoyette 		     dynamic reloc.  */
   8126  1.3.2.1  pgoyette 		  r_type = R_PPC_GOT16_LO;
   8127  1.3.2.1  pgoyette 		}
   8128  1.3.2.1  pgoyette 	      else
   8129  1.3.2.1  pgoyette 		info->callbacks->einfo
   8130  1.3.2.1  pgoyette 		  (_("%P: %H: error: %s with unexpected instruction %x\n"),
   8131  1.3.2.1  pgoyette 		   input_bfd, input_section, rel->r_offset,
   8132  1.3.2.1  pgoyette 		   "R_PPC_ADDR16_HA", insn);
   8133  1.3.2.1  pgoyette 	    }
   8134  1.3.2.1  pgoyette 	  else if (r_type == R_PPC_ADDR16_LO)
   8135  1.3.2.1  pgoyette 	    {
   8136  1.3.2.1  pgoyette 	      insn = bfd_get_32 (output_bfd,
   8137  1.3.2.1  pgoyette 				 contents + rel->r_offset - d_offset);
   8138  1.3.2.1  pgoyette 	      if ((insn & (0x3f << 26)) == 14u << 26    /* addi */
   8139  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   8140  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   8141  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   8142  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   8143  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   8144  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   8145  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   8146  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   8147  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   8148  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   8149  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   8150  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   8151  1.3.2.1  pgoyette 		  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   8152  1.3.2.1  pgoyette 		  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   8153  1.3.2.1  pgoyette 		      && (insn & 3) != 1)
   8154      1.1  christos 		  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   8155      1.1  christos 		      && ((insn & 3) == 0 || (insn & 3) == 3)))
   8156      1.1  christos 		{
   8157      1.1  christos 		  /* Arrange to apply the reloc addend, if any.  */
   8158      1.1  christos 		  relocation = 0;
   8159      1.1  christos 		  unresolved_reloc = FALSE;
   8160      1.1  christos 		  rel->r_info = ELF32_R_INFO (0, r_type);
   8161      1.1  christos 		}
   8162      1.1  christos 	      else
   8163      1.1  christos 		info->callbacks->einfo
   8164      1.1  christos 		  (_("%P: %H: error: %s with unexpected instruction %x\n"),
   8165      1.1  christos 		   input_bfd, input_section, rel->r_offset,
   8166      1.1  christos 		   "R_PPC_ADDR16_LO", insn);
   8167      1.1  christos 	    }
   8168      1.1  christos 	}
   8169      1.1  christos 
   8170      1.1  christos       ifunc = NULL;
   8171      1.1  christos       if (!htab->is_vxworks)
   8172      1.1  christos 	{
   8173      1.1  christos 	  struct plt_entry *ent;
   8174      1.1  christos 
   8175      1.1  christos 	  if (h != NULL)
   8176      1.1  christos 	    {
   8177      1.1  christos 	      if (h->type == STT_GNU_IFUNC)
   8178      1.1  christos 		ifunc = &h->plt.plist;
   8179      1.1  christos 	    }
   8180      1.1  christos 	  else if (local_got_offsets != NULL
   8181      1.1  christos 		   && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
   8182      1.1  christos 	    {
   8183      1.1  christos 	      struct plt_entry **local_plt;
   8184      1.1  christos 
   8185      1.1  christos 	      local_plt = (struct plt_entry **) (local_got_offsets
   8186      1.1  christos 						 + symtab_hdr->sh_info);
   8187      1.1  christos 	      ifunc = local_plt + r_symndx;
   8188      1.1  christos 	    }
   8189      1.1  christos 
   8190      1.1  christos 	  ent = NULL;
   8191      1.1  christos 	  if (ifunc != NULL
   8192      1.1  christos 	      && (!info->shared
   8193      1.1  christos 		  || is_branch_reloc (r_type)))
   8194      1.1  christos 	    {
   8195      1.1  christos 	      addend = 0;
   8196      1.1  christos 	      if (r_type == R_PPC_PLTREL24 && info->shared)
   8197      1.1  christos 		addend = rel->r_addend;
   8198      1.1  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   8199      1.1  christos 	    }
   8200      1.1  christos 	  if (ent != NULL)
   8201      1.1  christos 	    {
   8202      1.1  christos 	      if (h == NULL && (ent->plt.offset & 1) == 0)
   8203      1.1  christos 		{
   8204      1.1  christos 		  Elf_Internal_Rela rela;
   8205      1.1  christos 		  bfd_byte *loc;
   8206      1.1  christos 
   8207      1.1  christos 		  rela.r_offset = (htab->iplt->output_section->vma
   8208      1.1  christos 				   + htab->iplt->output_offset
   8209      1.1  christos 				   + ent->plt.offset);
   8210      1.1  christos 		  rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8211      1.1  christos 		  rela.r_addend = relocation;
   8212      1.1  christos 		  loc = htab->reliplt->contents;
   8213      1.1  christos 		  loc += (htab->reliplt->reloc_count++
   8214      1.3  christos 			  * sizeof (Elf32_External_Rela));
   8215      1.3  christos 		  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   8216      1.1  christos 
   8217      1.1  christos 		  ent->plt.offset |= 1;
   8218      1.1  christos 		}
   8219      1.1  christos 	      if (h == NULL && (ent->glink_offset & 1) == 0)
   8220      1.1  christos 		{
   8221      1.1  christos 		  unsigned char *p = ((unsigned char *) htab->glink->contents
   8222      1.1  christos 				      + ent->glink_offset);
   8223      1.1  christos 		  write_glink_stub (ent, htab->iplt, p, info);
   8224      1.1  christos 		  ent->glink_offset |= 1;
   8225      1.1  christos 		}
   8226      1.1  christos 
   8227      1.1  christos 	      unresolved_reloc = FALSE;
   8228      1.1  christos 	      if (htab->plt_type == PLT_NEW
   8229      1.1  christos 		  || !htab->elf.dynamic_sections_created
   8230      1.1  christos 		  || h == NULL
   8231      1.1  christos 		  || h->dynindx == -1)
   8232      1.1  christos 		relocation = (htab->glink->output_section->vma
   8233      1.1  christos 			      + htab->glink->output_offset
   8234      1.1  christos 			      + (ent->glink_offset & ~1));
   8235      1.1  christos 	      else
   8236      1.1  christos 		relocation = (htab->plt->output_section->vma
   8237      1.1  christos 			      + htab->plt->output_offset
   8238      1.1  christos 			      + ent->plt.offset);
   8239      1.1  christos 	    }
   8240      1.1  christos 	}
   8241      1.1  christos 
   8242      1.1  christos       addend = rel->r_addend;
   8243      1.1  christos       tls_type = 0;
   8244      1.1  christos       howto = NULL;
   8245      1.1  christos       if (r_type < R_PPC_max)
   8246      1.1  christos 	howto = ppc_elf_howto_table[r_type];
   8247      1.1  christos       switch (r_type)
   8248      1.1  christos 	{
   8249      1.1  christos 	default:
   8250      1.1  christos 	  info->callbacks->einfo
   8251      1.1  christos 	    (_("%P: %B: unknown relocation type %d for symbol %s\n"),
   8252      1.1  christos 	     input_bfd, (int) r_type, sym_name);
   8253      1.1  christos 
   8254      1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   8255      1.1  christos 	  ret = FALSE;
   8256      1.1  christos 	  continue;
   8257      1.1  christos 
   8258      1.1  christos 	case R_PPC_NONE:
   8259      1.1  christos 	case R_PPC_TLS:
   8260      1.1  christos 	case R_PPC_TLSGD:
   8261      1.1  christos 	case R_PPC_TLSLD:
   8262      1.1  christos 	case R_PPC_EMB_MRKREF:
   8263      1.1  christos 	case R_PPC_GNU_VTINHERIT:
   8264      1.1  christos 	case R_PPC_GNU_VTENTRY:
   8265      1.1  christos 	  continue;
   8266      1.1  christos 
   8267      1.1  christos 	  /* GOT16 relocations.  Like an ADDR16 using the symbol's
   8268      1.1  christos 	     address in the GOT as relocation value instead of the
   8269      1.1  christos 	     symbol's value itself.  Also, create a GOT entry for the
   8270      1.1  christos 	     symbol and put the symbol value there.  */
   8271      1.1  christos 	case R_PPC_GOT_TLSGD16:
   8272      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   8273      1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   8274      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   8275      1.1  christos 	  tls_type = TLS_TLS | TLS_GD;
   8276      1.1  christos 	  goto dogot;
   8277      1.1  christos 
   8278      1.1  christos 	case R_PPC_GOT_TLSLD16:
   8279      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   8280      1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   8281      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   8282      1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   8283      1.1  christos 	  goto dogot;
   8284      1.1  christos 
   8285      1.1  christos 	case R_PPC_GOT_TPREL16:
   8286      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   8287      1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   8288      1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   8289      1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   8290      1.1  christos 	  goto dogot;
   8291      1.1  christos 
   8292      1.1  christos 	case R_PPC_GOT_DTPREL16:
   8293      1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   8294      1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   8295      1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   8296      1.1  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   8297      1.1  christos 	  goto dogot;
   8298      1.1  christos 
   8299      1.1  christos 	case R_PPC_GOT16:
   8300      1.1  christos 	case R_PPC_GOT16_LO:
   8301      1.1  christos 	case R_PPC_GOT16_HI:
   8302      1.1  christos 	case R_PPC_GOT16_HA:
   8303      1.1  christos 	  tls_mask = 0;
   8304      1.1  christos 	dogot:
   8305      1.1  christos 	  {
   8306      1.1  christos 	    /* Relocation is to the entry for this symbol in the global
   8307      1.1  christos 	       offset table.  */
   8308      1.1  christos 	    bfd_vma off;
   8309      1.1  christos 	    bfd_vma *offp;
   8310      1.1  christos 	    unsigned long indx;
   8311      1.1  christos 
   8312      1.1  christos 	    if (htab->got == NULL)
   8313      1.1  christos 	      abort ();
   8314      1.1  christos 
   8315      1.1  christos 	    indx = 0;
   8316      1.1  christos 	    if (tls_type == (TLS_TLS | TLS_LD)
   8317      1.1  christos 		&& (h == NULL
   8318      1.1  christos 		    || !h->def_dynamic))
   8319      1.1  christos 	      offp = &htab->tlsld_got.offset;
   8320      1.1  christos 	    else if (h != NULL)
   8321      1.1  christos 	      {
   8322      1.1  christos 		bfd_boolean dyn;
   8323      1.1  christos 		dyn = htab->elf.dynamic_sections_created;
   8324      1.1  christos 		if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
   8325      1.1  christos 		    || (info->shared
   8326      1.1  christos 			&& SYMBOL_REFERENCES_LOCAL (info, h)))
   8327      1.1  christos 		  /* This is actually a static link, or it is a
   8328      1.1  christos 		     -Bsymbolic link and the symbol is defined
   8329      1.1  christos 		     locally, or the symbol was forced to be local
   8330      1.1  christos 		     because of a version file.  */
   8331      1.1  christos 		  ;
   8332      1.1  christos 		else
   8333      1.1  christos 		  {
   8334      1.1  christos 		    BFD_ASSERT (h->dynindx != -1);
   8335      1.1  christos 		    indx = h->dynindx;
   8336      1.1  christos 		    unresolved_reloc = FALSE;
   8337      1.1  christos 		  }
   8338      1.1  christos 		offp = &h->got.offset;
   8339      1.1  christos 	      }
   8340      1.1  christos 	    else
   8341      1.1  christos 	      {
   8342      1.1  christos 		if (local_got_offsets == NULL)
   8343      1.1  christos 		  abort ();
   8344      1.1  christos 		offp = &local_got_offsets[r_symndx];
   8345      1.1  christos 	      }
   8346      1.1  christos 
   8347      1.1  christos 	    /* The offset must always be a multiple of 4.  We use the
   8348      1.1  christos 	       least significant bit to record whether we have already
   8349      1.1  christos 	       processed this entry.  */
   8350      1.1  christos 	    off = *offp;
   8351      1.1  christos 	    if ((off & 1) != 0)
   8352      1.1  christos 	      off &= ~1;
   8353      1.1  christos 	    else
   8354      1.1  christos 	      {
   8355      1.1  christos 		unsigned int tls_m = (tls_mask
   8356      1.1  christos 				      & (TLS_LD | TLS_GD | TLS_DTPREL
   8357      1.1  christos 					 | TLS_TPREL | TLS_TPRELGD));
   8358      1.1  christos 
   8359      1.1  christos 		if (offp == &htab->tlsld_got.offset)
   8360      1.1  christos 		  tls_m = TLS_LD;
   8361      1.1  christos 		else if (h == NULL
   8362      1.1  christos 			 || !h->def_dynamic)
   8363      1.1  christos 		  tls_m &= ~TLS_LD;
   8364      1.1  christos 
   8365      1.1  christos 		/* We might have multiple got entries for this sym.
   8366      1.1  christos 		   Initialize them all.  */
   8367      1.1  christos 		do
   8368      1.1  christos 		  {
   8369      1.1  christos 		    int tls_ty = 0;
   8370      1.1  christos 
   8371      1.1  christos 		    if ((tls_m & TLS_LD) != 0)
   8372      1.1  christos 		      {
   8373      1.1  christos 			tls_ty = TLS_TLS | TLS_LD;
   8374      1.1  christos 			tls_m &= ~TLS_LD;
   8375      1.1  christos 		      }
   8376      1.1  christos 		    else if ((tls_m & TLS_GD) != 0)
   8377      1.1  christos 		      {
   8378      1.1  christos 			tls_ty = TLS_TLS | TLS_GD;
   8379      1.1  christos 			tls_m &= ~TLS_GD;
   8380      1.1  christos 		      }
   8381      1.1  christos 		    else if ((tls_m & TLS_DTPREL) != 0)
   8382      1.1  christos 		      {
   8383      1.1  christos 			tls_ty = TLS_TLS | TLS_DTPREL;
   8384      1.1  christos 			tls_m &= ~TLS_DTPREL;
   8385      1.1  christos 		      }
   8386      1.1  christos 		    else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
   8387      1.1  christos 		      {
   8388      1.1  christos 			tls_ty = TLS_TLS | TLS_TPREL;
   8389      1.1  christos 			tls_m = 0;
   8390      1.1  christos 		      }
   8391      1.1  christos 
   8392      1.1  christos 		    /* Generate relocs for the dynamic linker.  */
   8393      1.1  christos 		    if ((info->shared || indx != 0)
   8394      1.1  christos 			&& (offp == &htab->tlsld_got.offset
   8395      1.1  christos 			    || h == NULL
   8396      1.1  christos 			    || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
   8397      1.1  christos 			    || h->root.type != bfd_link_hash_undefweak))
   8398      1.1  christos 		      {
   8399      1.1  christos 			asection *rsec = htab->relgot;
   8400      1.1  christos 			bfd_byte * loc;
   8401      1.1  christos 
   8402      1.1  christos 			if (ifunc != NULL)
   8403      1.1  christos 			  rsec = htab->reliplt;
   8404      1.1  christos 			outrel.r_offset = (htab->got->output_section->vma
   8405      1.1  christos 					   + htab->got->output_offset
   8406      1.1  christos 					   + off);
   8407      1.1  christos 			outrel.r_addend = 0;
   8408      1.1  christos 			if (tls_ty & (TLS_LD | TLS_GD))
   8409      1.1  christos 			  {
   8410      1.1  christos 			    outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
   8411      1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_GD))
   8412      1.1  christos 			      {
   8413      1.1  christos 				loc = rsec->contents;
   8414      1.1  christos 				loc += (rsec->reloc_count++
   8415      1.1  christos 					* sizeof (Elf32_External_Rela));
   8416      1.1  christos 				bfd_elf32_swap_reloca_out (output_bfd,
   8417      1.1  christos 							   &outrel, loc);
   8418      1.1  christos 				outrel.r_offset += 4;
   8419      1.1  christos 				outrel.r_info
   8420      1.1  christos 				  = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   8421  1.3.2.1  pgoyette 			      }
   8422  1.3.2.1  pgoyette 			  }
   8423  1.3.2.1  pgoyette 			else if (tls_ty == (TLS_TLS | TLS_DTPREL))
   8424  1.3.2.1  pgoyette 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   8425  1.3.2.1  pgoyette 			else if (tls_ty == (TLS_TLS | TLS_TPREL))
   8426  1.3.2.1  pgoyette 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
   8427      1.1  christos 			else if (indx != 0)
   8428      1.1  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
   8429      1.1  christos 			else if (ifunc != NULL)
   8430      1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8431      1.1  christos 			else
   8432      1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   8433      1.1  christos 			if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
   8434      1.1  christos 			  {
   8435      1.1  christos 			    outrel.r_addend += relocation;
   8436      1.1  christos 			    if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
   8437      1.1  christos 			      {
   8438      1.1  christos 				if (htab->elf.tls_sec == NULL)
   8439      1.1  christos 				  outrel.r_addend = 0;
   8440      1.1  christos 				else
   8441      1.1  christos 				  outrel.r_addend -= htab->elf.tls_sec->vma;
   8442      1.1  christos 			      }
   8443      1.1  christos 			  }
   8444  1.3.2.1  pgoyette 			loc = rsec->contents;
   8445  1.3.2.1  pgoyette 			loc += (rsec->reloc_count++
   8446  1.3.2.1  pgoyette 				* sizeof (Elf32_External_Rela));
   8447  1.3.2.1  pgoyette 			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   8448  1.3.2.1  pgoyette 		      }
   8449  1.3.2.1  pgoyette 
   8450  1.3.2.1  pgoyette 		    /* Init the .got section contents if we're not
   8451  1.3.2.1  pgoyette 		       emitting a reloc.  */
   8452      1.1  christos 		    else
   8453      1.1  christos 		      {
   8454      1.1  christos 			bfd_vma value = relocation;
   8455      1.1  christos 
   8456      1.1  christos 			if (tls_ty == (TLS_TLS | TLS_LD))
   8457      1.1  christos 			  value = 1;
   8458      1.1  christos 			else if (tls_ty != 0)
   8459      1.1  christos 			  {
   8460      1.1  christos 			    if (htab->elf.tls_sec == NULL)
   8461      1.1  christos 			      value = 0;
   8462      1.1  christos 			    else
   8463      1.1  christos 			      {
   8464      1.1  christos 				value -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8465      1.1  christos 				if (tls_ty == (TLS_TLS | TLS_TPREL))
   8466      1.1  christos 				  value += DTP_OFFSET - TP_OFFSET;
   8467      1.1  christos 			      }
   8468      1.1  christos 
   8469      1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_GD))
   8470      1.1  christos 			      {
   8471      1.1  christos 				bfd_put_32 (output_bfd, value,
   8472      1.1  christos 					    htab->got->contents + off + 4);
   8473      1.1  christos 				value = 1;
   8474      1.1  christos 			      }
   8475      1.1  christos 			  }
   8476      1.1  christos 			bfd_put_32 (output_bfd, value,
   8477      1.1  christos 				    htab->got->contents + off);
   8478      1.1  christos 		      }
   8479      1.1  christos 
   8480      1.1  christos 		    off += 4;
   8481      1.1  christos 		    if (tls_ty & (TLS_LD | TLS_GD))
   8482      1.1  christos 		      off += 4;
   8483      1.1  christos 		  }
   8484      1.1  christos 		while (tls_m != 0);
   8485      1.1  christos 
   8486      1.1  christos 		off = *offp;
   8487      1.1  christos 		*offp = off | 1;
   8488      1.1  christos 	      }
   8489      1.1  christos 
   8490      1.1  christos 	    if (off >= (bfd_vma) -2)
   8491      1.1  christos 	      abort ();
   8492      1.1  christos 
   8493      1.1  christos 	    if ((tls_type & TLS_TLS) != 0)
   8494      1.1  christos 	      {
   8495      1.1  christos 		if (tls_type != (TLS_TLS | TLS_LD))
   8496      1.1  christos 		  {
   8497      1.1  christos 		    if ((tls_mask & TLS_LD) != 0
   8498  1.3.2.1  pgoyette 			&& !(h == NULL
   8499  1.3.2.1  pgoyette 			     || !h->def_dynamic))
   8500  1.3.2.1  pgoyette 		      off += 8;
   8501  1.3.2.1  pgoyette 		    if (tls_type != (TLS_TLS | TLS_GD))
   8502      1.1  christos 		      {
   8503      1.1  christos 			if ((tls_mask & TLS_GD) != 0)
   8504      1.1  christos 			  off += 8;
   8505      1.1  christos 			if (tls_type != (TLS_TLS | TLS_DTPREL))
   8506      1.1  christos 			  {
   8507      1.1  christos 			    if ((tls_mask & TLS_DTPREL) != 0)
   8508      1.1  christos 			      off += 4;
   8509      1.1  christos 			  }
   8510      1.1  christos 		      }
   8511      1.1  christos 		  }
   8512      1.1  christos 	      }
   8513      1.1  christos 
   8514      1.1  christos 	    /* If here for a picfixup, we're done.  */
   8515      1.1  christos 	    if (r_type != ELF32_R_TYPE (rel->r_info))
   8516      1.1  christos 	      continue;
   8517      1.1  christos 
   8518      1.3  christos 	    relocation = (htab->got->output_section->vma
   8519      1.1  christos 			  + htab->got->output_offset
   8520      1.3  christos 			  + off
   8521      1.1  christos 			  - SYM_VAL (htab->elf.hgot));
   8522      1.1  christos 
   8523      1.1  christos 	    /* Addends on got relocations don't make much sense.
   8524      1.1  christos 	       x+off@got is actually x@got+off, and since the got is
   8525      1.1  christos 	       generated by a hash table traversal, the value in the
   8526      1.1  christos 	       got at entry m+n bears little relation to the entry m.  */
   8527      1.1  christos 	    if (addend != 0)
   8528      1.1  christos 	      info->callbacks->einfo
   8529      1.1  christos 		(_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
   8530      1.1  christos 		 input_bfd, input_section, rel->r_offset,
   8531      1.1  christos 		 howto->name,
   8532      1.1  christos 		 sym_name);
   8533      1.1  christos 	  }
   8534      1.1  christos 	  break;
   8535      1.1  christos 
   8536      1.1  christos 	  /* Relocations that need no special processing.  */
   8537      1.1  christos 	case R_PPC_LOCAL24PC:
   8538      1.1  christos 	  /* It makes no sense to point a local relocation
   8539      1.1  christos 	     at a symbol not in this object.  */
   8540      1.1  christos 	  if (unresolved_reloc)
   8541  1.3.2.1  pgoyette 	    {
   8542  1.3.2.1  pgoyette 	      if (! (*info->callbacks->undefined_symbol) (info,
   8543      1.1  christos 							  h->root.root.string,
   8544      1.1  christos 							  input_bfd,
   8545      1.1  christos 							  input_section,
   8546      1.1  christos 							  rel->r_offset,
   8547      1.1  christos 							  TRUE))
   8548      1.1  christos 		return FALSE;
   8549      1.1  christos 	      continue;
   8550      1.1  christos 	    }
   8551      1.1  christos 	  break;
   8552      1.1  christos 
   8553      1.1  christos 	case R_PPC_DTPREL16:
   8554      1.1  christos 	case R_PPC_DTPREL16_LO:
   8555      1.1  christos 	case R_PPC_DTPREL16_HI:
   8556      1.1  christos 	case R_PPC_DTPREL16_HA:
   8557      1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8558      1.1  christos 	    addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8559      1.1  christos 	  break;
   8560      1.1  christos 
   8561      1.1  christos 	  /* Relocations that may need to be propagated if this is a shared
   8562      1.1  christos 	     object.  */
   8563      1.1  christos 	case R_PPC_TPREL16:
   8564      1.1  christos 	case R_PPC_TPREL16_LO:
   8565      1.1  christos 	case R_PPC_TPREL16_HI:
   8566  1.3.2.1  pgoyette 	case R_PPC_TPREL16_HA:
   8567  1.3.2.1  pgoyette 	  if (h != NULL
   8568      1.1  christos 	      && h->root.type == bfd_link_hash_undefweak
   8569      1.1  christos 	      && h->dynindx == -1)
   8570      1.1  christos 	    {
   8571      1.1  christos 	      /* Make this relocation against an undefined weak symbol
   8572      1.1  christos 		 resolve to zero.  This is really just a tweak, since
   8573      1.1  christos 		 code using weak externs ought to check that they are
   8574  1.3.2.1  pgoyette 		 defined before using them.  */
   8575  1.3.2.1  pgoyette 	      bfd_byte *p = contents + rel->r_offset - d_offset;
   8576      1.1  christos 	      unsigned int insn = bfd_get_32 (output_bfd, p);
   8577      1.1  christos 	      insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
   8578      1.1  christos 	      if (insn != 0)
   8579  1.3.2.1  pgoyette 		bfd_put_32 (output_bfd, insn, p);
   8580  1.3.2.1  pgoyette 	      break;
   8581      1.1  christos 	    }
   8582      1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8583      1.1  christos 	    addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   8584      1.1  christos 	  /* The TPREL16 relocs shouldn't really be used in shared
   8585      1.1  christos 	     libs as they will result in DT_TEXTREL being set, but
   8586      1.1  christos 	     support them anyway.  */
   8587      1.1  christos 	  goto dodyn;
   8588      1.1  christos 
   8589      1.1  christos 	case R_PPC_TPREL32:
   8590      1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8591      1.1  christos 	    addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   8592      1.1  christos 	  goto dodyn;
   8593      1.1  christos 
   8594      1.1  christos 	case R_PPC_DTPREL32:
   8595      1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8596      1.1  christos 	    addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8597      1.1  christos 	  goto dodyn;
   8598      1.1  christos 
   8599      1.1  christos 	case R_PPC_DTPMOD32:
   8600      1.1  christos 	  relocation = 1;
   8601      1.1  christos 	  addend = 0;
   8602      1.1  christos 	  goto dodyn;
   8603      1.1  christos 
   8604      1.1  christos 	case R_PPC_REL16:
   8605      1.1  christos 	case R_PPC_REL16_LO:
   8606      1.1  christos 	case R_PPC_REL16_HI:
   8607      1.1  christos 	case R_PPC_REL16_HA:
   8608      1.1  christos 	  break;
   8609      1.1  christos 
   8610      1.1  christos 	case R_PPC_REL32:
   8611      1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   8612      1.1  christos 	    break;
   8613      1.1  christos 	  /* fall through */
   8614      1.1  christos 
   8615      1.1  christos 	case R_PPC_ADDR32:
   8616      1.1  christos 	case R_PPC_ADDR16:
   8617      1.1  christos 	case R_PPC_ADDR16_LO:
   8618      1.1  christos 	case R_PPC_ADDR16_HI:
   8619      1.1  christos 	case R_PPC_ADDR16_HA:
   8620      1.1  christos 	case R_PPC_UADDR32:
   8621      1.1  christos 	case R_PPC_UADDR16:
   8622      1.1  christos 	  goto dodyn;
   8623      1.1  christos 
   8624      1.1  christos 	case R_PPC_VLE_REL8:
   8625      1.1  christos 	case R_PPC_VLE_REL15:
   8626      1.1  christos 	case R_PPC_VLE_REL24:
   8627      1.1  christos 	case R_PPC_REL24:
   8628      1.1  christos 	case R_PPC_REL14:
   8629      1.1  christos 	case R_PPC_REL14_BRTAKEN:
   8630      1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   8631      1.1  christos 	  /* If these relocations are not to a named symbol, they can be
   8632      1.1  christos 	     handled right here, no need to bother the dynamic linker.  */
   8633      1.1  christos 	  if (SYMBOL_CALLS_LOCAL (info, h)
   8634      1.1  christos 	      || h == htab->elf.hgot)
   8635      1.1  christos 	    break;
   8636      1.1  christos 	  /* fall through */
   8637      1.1  christos 
   8638      1.1  christos 	case R_PPC_ADDR24:
   8639      1.1  christos 	case R_PPC_ADDR14:
   8640      1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   8641      1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   8642      1.1  christos 	  if (h != NULL && !info->shared)
   8643      1.1  christos 	    break;
   8644      1.1  christos 	  /* fall through */
   8645      1.1  christos 
   8646      1.1  christos 	dodyn:
   8647      1.1  christos 	  if ((input_section->flags & SEC_ALLOC) == 0
   8648      1.1  christos 	      || is_vxworks_tls)
   8649  1.3.2.1  pgoyette 	    break;
   8650  1.3.2.1  pgoyette 
   8651  1.3.2.1  pgoyette 	  if ((info->shared
   8652  1.3.2.1  pgoyette 	       && !(h != NULL
   8653  1.3.2.1  pgoyette 		    && ((h->root.type == bfd_link_hash_undefined
   8654      1.1  christos 			 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
   8655      1.1  christos 			     || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
   8656      1.1  christos 			|| (h->root.type == bfd_link_hash_undefweak
   8657      1.1  christos 			    && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
   8658      1.1  christos 	       && (must_be_dyn_reloc (info, r_type)
   8659      1.1  christos 		   || !SYMBOL_CALLS_LOCAL (info, h)))
   8660      1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   8661      1.1  christos 		  && !info->shared
   8662      1.1  christos 		  && h != NULL
   8663      1.1  christos 		  && h->dynindx != -1
   8664      1.1  christos 		  && !h->non_got_ref
   8665      1.1  christos 		  && !h->def_regular
   8666      1.1  christos 		  && !(h->protected_def
   8667      1.1  christos 		       && ppc_elf_hash_entry (h)->has_addr16_ha
   8668      1.1  christos 		       && ppc_elf_hash_entry (h)->has_addr16_lo
   8669      1.1  christos 		       && htab->params->pic_fixup > 0)))
   8670      1.1  christos 	    {
   8671      1.1  christos 	      int skip;
   8672      1.1  christos 	      bfd_byte *loc;
   8673      1.1  christos 	      asection *sreloc;
   8674      1.1  christos #ifdef DEBUG
   8675      1.1  christos 	      fprintf (stderr, "ppc_elf_relocate_section needs to "
   8676      1.1  christos 		       "create relocation for %s\n",
   8677      1.1  christos 		       (h && h->root.root.string
   8678      1.1  christos 			? h->root.root.string : "<unknown>"));
   8679      1.1  christos #endif
   8680      1.1  christos 
   8681      1.1  christos 	      /* When generating a shared object, these relocations
   8682      1.1  christos 		 are copied into the output file to be resolved at run
   8683      1.1  christos 		 time.  */
   8684      1.1  christos 	      sreloc = elf_section_data (input_section)->sreloc;
   8685      1.1  christos 	      if (ifunc)
   8686      1.1  christos 		sreloc = htab->reliplt;
   8687      1.1  christos 	      if (sreloc == NULL)
   8688      1.1  christos 		return FALSE;
   8689      1.1  christos 
   8690      1.1  christos 	      skip = 0;
   8691      1.1  christos 	      outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
   8692      1.1  christos 							 input_section,
   8693      1.1  christos 							 rel->r_offset);
   8694      1.1  christos 	      if (outrel.r_offset == (bfd_vma) -1
   8695      1.1  christos 		  || outrel.r_offset == (bfd_vma) -2)
   8696      1.1  christos 		skip = (int) outrel.r_offset;
   8697      1.1  christos 	      outrel.r_offset += (input_section->output_section->vma
   8698      1.1  christos 				  + input_section->output_offset);
   8699      1.1  christos 
   8700      1.1  christos 	      if (skip)
   8701      1.1  christos 		memset (&outrel, 0, sizeof outrel);
   8702      1.1  christos 	      else if ((h != NULL
   8703      1.1  christos 			&& (h->root.type == bfd_link_hash_undefined
   8704      1.1  christos 			    || h->root.type == bfd_link_hash_undefweak))
   8705      1.1  christos 		       || !SYMBOL_REFERENCES_LOCAL (info, h))
   8706      1.1  christos 		{
   8707      1.1  christos 		  BFD_ASSERT (h->dynindx != -1);
   8708      1.1  christos 		  unresolved_reloc = FALSE;
   8709      1.1  christos 		  outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
   8710      1.1  christos 		  outrel.r_addend = rel->r_addend;
   8711      1.1  christos 		}
   8712      1.1  christos 	      else
   8713      1.1  christos 		{
   8714      1.1  christos 		  outrel.r_addend = relocation + rel->r_addend;
   8715      1.1  christos 
   8716      1.1  christos 		  if (r_type != R_PPC_ADDR32)
   8717      1.1  christos 		    {
   8718      1.1  christos 		      long indx = 0;
   8719      1.1  christos 
   8720      1.1  christos 		      if (ifunc != NULL)
   8721      1.1  christos 			{
   8722      1.1  christos 			  /* If we get here when building a static
   8723      1.1  christos 			     executable, then the libc startup function
   8724      1.1  christos 			     responsible for applying indirect function
   8725      1.1  christos 			     relocations is going to complain about
   8726      1.1  christos 			     the reloc type.
   8727      1.1  christos 			     If we get here when building a dynamic
   8728      1.1  christos 			     executable, it will be because we have
   8729      1.1  christos 			     a text relocation.  The dynamic loader
   8730      1.1  christos 			     will set the text segment writable and
   8731      1.1  christos 			     non-executable to apply text relocations.
   8732      1.1  christos 			     So we'll segfault when trying to run the
   8733      1.1  christos 			     indirection function to resolve the reloc.  */
   8734      1.1  christos 			  info->callbacks->einfo
   8735      1.1  christos 			    (_("%P: %H: relocation %s for indirect "
   8736      1.1  christos 			       "function %s unsupported\n"),
   8737      1.1  christos 			     input_bfd, input_section, rel->r_offset,
   8738      1.1  christos 			     howto->name,
   8739      1.1  christos 			     sym_name);
   8740      1.1  christos 			  ret = FALSE;
   8741      1.1  christos 			}
   8742      1.1  christos 		      else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
   8743      1.1  christos 			;
   8744      1.1  christos 		      else if (sec == NULL || sec->owner == NULL)
   8745      1.1  christos 			{
   8746      1.1  christos 			  bfd_set_error (bfd_error_bad_value);
   8747      1.1  christos 			  ret = FALSE;
   8748      1.1  christos 			}
   8749      1.1  christos 		      else
   8750      1.1  christos 			{
   8751      1.1  christos 			  asection *osec;
   8752      1.1  christos 
   8753      1.1  christos 			  /* We are turning this relocation into one
   8754      1.1  christos 			     against a section symbol.  It would be
   8755      1.1  christos 			     proper to subtract the symbol's value,
   8756      1.1  christos 			     osec->vma, from the emitted reloc addend,
   8757      1.1  christos 			     but ld.so expects buggy relocs.
   8758      1.1  christos 			     FIXME: Why not always use a zero index?  */
   8759      1.1  christos 			  osec = sec->output_section;
   8760      1.1  christos 			  indx = elf_section_data (osec)->dynindx;
   8761      1.1  christos 			  if (indx == 0)
   8762      1.1  christos 			    {
   8763      1.1  christos 			      osec = htab->elf.text_index_section;
   8764      1.1  christos 			      indx = elf_section_data (osec)->dynindx;
   8765      1.1  christos 			    }
   8766      1.1  christos 			  BFD_ASSERT (indx != 0);
   8767      1.1  christos #ifdef DEBUG
   8768      1.1  christos 			  if (indx == 0)
   8769      1.1  christos 			    printf ("indx=%ld section=%s flags=%08x name=%s\n",
   8770      1.1  christos 				    indx, osec->name, osec->flags,
   8771      1.1  christos 				    h->root.root.string);
   8772      1.1  christos #endif
   8773      1.1  christos 			}
   8774      1.1  christos 
   8775      1.1  christos 		      outrel.r_info = ELF32_R_INFO (indx, r_type);
   8776      1.1  christos 		    }
   8777      1.1  christos 		  else if (ifunc != NULL)
   8778      1.1  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8779      1.1  christos 		  else
   8780      1.1  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   8781      1.1  christos 		}
   8782      1.1  christos 
   8783      1.1  christos 	      loc = sreloc->contents;
   8784      1.1  christos 	      loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
   8785      1.1  christos 	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   8786      1.1  christos 
   8787      1.1  christos 	      if (skip == -1)
   8788      1.1  christos 		continue;
   8789      1.1  christos 
   8790      1.1  christos 	      /* This reloc will be computed at runtime.  We clear the memory
   8791      1.1  christos 		 so that it contains predictable value.  */
   8792      1.1  christos 	      if (! skip
   8793      1.1  christos 		  && ((input_section->flags & SEC_ALLOC) != 0
   8794      1.1  christos 		      || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
   8795      1.1  christos 		{
   8796      1.1  christos 		  relocation = howto->pc_relative ? outrel.r_offset : 0;
   8797      1.1  christos 		  addend = 0;
   8798      1.1  christos 		  break;
   8799      1.1  christos 		}
   8800      1.1  christos 	    }
   8801      1.1  christos 	  break;
   8802      1.1  christos 
   8803      1.1  christos 	case R_PPC_RELAX_PLT:
   8804      1.1  christos 	case R_PPC_RELAX_PLTREL24:
   8805      1.1  christos 	  if (h != NULL)
   8806      1.1  christos 	    {
   8807      1.1  christos 	      struct plt_entry *ent;
   8808      1.1  christos 	      bfd_vma got2_addend = 0;
   8809      1.1  christos 
   8810      1.1  christos 	      if (r_type == R_PPC_RELAX_PLTREL24)
   8811      1.1  christos 		{
   8812      1.1  christos 		  if (info->shared)
   8813      1.1  christos 		    got2_addend = addend;
   8814      1.3  christos 		  addend = 0;
   8815      1.3  christos 		}
   8816      1.3  christos 	      ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
   8817      1.3  christos 	      if (htab->plt_type == PLT_NEW)
   8818      1.3  christos 		relocation = (htab->glink->output_section->vma
   8819      1.3  christos 			      + htab->glink->output_offset
   8820      1.3  christos 			      + ent->glink_offset);
   8821      1.3  christos 	      else
   8822      1.3  christos 		relocation = (htab->plt->output_section->vma
   8823      1.3  christos 			      + htab->plt->output_offset
   8824      1.3  christos 			      + ent->plt.offset);
   8825      1.3  christos 	    }
   8826      1.3  christos 	  /* Fall thru */
   8827      1.3  christos 
   8828      1.3  christos 	case R_PPC_RELAX:
   8829      1.3  christos 	  {
   8830      1.3  christos 	    const int *stub;
   8831      1.3  christos 	    size_t size;
   8832      1.3  christos 	    size_t insn_offset = rel->r_offset;
   8833      1.3  christos 	    unsigned int insn;
   8834      1.3  christos 
   8835      1.3  christos 	    if (info->shared)
   8836      1.1  christos 	      {
   8837      1.1  christos 		relocation -= (input_section->output_section->vma
   8838      1.3  christos 			       + input_section->output_offset
   8839      1.3  christos 			       + rel->r_offset - 4);
   8840      1.1  christos 		stub = shared_stub_entry;
   8841      1.3  christos 		bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12);
   8842      1.3  christos 		bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8);
   8843      1.3  christos 		bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4);
   8844      1.3  christos 		stub += 3;
   8845      1.3  christos 		size = ARRAY_SIZE (shared_stub_entry) - 3;
   8846      1.3  christos 	      }
   8847      1.3  christos 	    else
   8848      1.3  christos 	      {
   8849      1.3  christos 		stub = stub_entry;
   8850      1.3  christos 		size = ARRAY_SIZE (stub_entry);
   8851      1.3  christos 	      }
   8852      1.3  christos 
   8853      1.3  christos 	    relocation += addend;
   8854      1.3  christos 	    if (info->relocatable)
   8855      1.3  christos 	      relocation = 0;
   8856      1.3  christos 
   8857      1.3  christos 	    /* First insn is HA, second is LO.  */
   8858      1.3  christos 	    insn = *stub++;
   8859      1.3  christos 	    insn |= ((relocation + 0x8000) >> 16) & 0xffff;
   8860      1.1  christos 	    bfd_put_32 (output_bfd, insn, contents + insn_offset);
   8861      1.1  christos 	    insn_offset += 4;
   8862      1.1  christos 
   8863      1.1  christos 	    insn = *stub++;
   8864      1.1  christos 	    insn |= relocation & 0xffff;
   8865      1.3  christos 	    bfd_put_32 (output_bfd, insn, contents + insn_offset);
   8866      1.1  christos 	    insn_offset += 4;
   8867      1.1  christos 	    size -= 2;
   8868      1.1  christos 
   8869      1.1  christos 	    while (size != 0)
   8870      1.1  christos 	      {
   8871      1.1  christos 		insn = *stub++;
   8872      1.1  christos 		--size;
   8873      1.1  christos 		bfd_put_32 (output_bfd, insn, contents + insn_offset);
   8874      1.1  christos 		insn_offset += 4;
   8875      1.1  christos 	      }
   8876      1.1  christos 
   8877      1.1  christos 	    /* Rewrite the reloc and convert one of the trailing nop
   8878      1.1  christos 	       relocs to describe this relocation.  */
   8879      1.1  christos 	    BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
   8880      1.1  christos 	    /* The relocs are at the bottom 2 bytes */
   8881      1.1  christos 	    rel[0].r_offset += d_offset;
   8882      1.1  christos 	    memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
   8883      1.1  christos 	    rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
   8884      1.1  christos 	    rel[1].r_offset += 4;
   8885      1.1  christos 	    rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
   8886      1.1  christos 	    rel++;
   8887      1.1  christos 	  }
   8888      1.1  christos 	  continue;
   8889      1.1  christos 
   8890      1.1  christos 	  /* Indirect .sdata relocation.  */
   8891      1.1  christos 	case R_PPC_EMB_SDAI16:
   8892      1.1  christos 	  BFD_ASSERT (htab->sdata[0].section != NULL);
   8893      1.1  christos 	  if (!is_static_defined (htab->sdata[0].sym))
   8894      1.1  christos 	    {
   8895      1.1  christos 	      unresolved_reloc = TRUE;
   8896      1.1  christos 	      break;
   8897      1.1  christos 	    }
   8898      1.1  christos 	  relocation
   8899      1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
   8900      1.1  christos 						 h, relocation, rel);
   8901      1.1  christos 	  addend = 0;
   8902      1.1  christos 	  break;
   8903      1.1  christos 
   8904      1.1  christos 	  /* Indirect .sdata2 relocation.  */
   8905      1.1  christos 	case R_PPC_EMB_SDA2I16:
   8906      1.1  christos 	  BFD_ASSERT (htab->sdata[1].section != NULL);
   8907      1.1  christos 	  if (!is_static_defined (htab->sdata[1].sym))
   8908      1.1  christos 	    {
   8909      1.1  christos 	      unresolved_reloc = TRUE;
   8910      1.1  christos 	      break;
   8911      1.1  christos 	    }
   8912      1.1  christos 	  relocation
   8913      1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
   8914      1.1  christos 						 h, relocation, rel);
   8915      1.1  christos 	  addend = 0;
   8916      1.1  christos 	  break;
   8917      1.1  christos 
   8918      1.1  christos 	  /* Handle the TOC16 reloc.  We want to use the offset within the .got
   8919      1.1  christos 	     section, not the actual VMA.  This is appropriate when generating
   8920      1.1  christos 	     an embedded ELF object, for which the .got section acts like the
   8921      1.1  christos 	     AIX .toc section.  */
   8922      1.1  christos 	case R_PPC_TOC16:			/* phony GOT16 relocations */
   8923      1.1  christos 	  if (sec == NULL || sec->output_section == NULL)
   8924      1.1  christos 	    {
   8925      1.1  christos 	      unresolved_reloc = TRUE;
   8926      1.1  christos 	      break;
   8927      1.1  christos 	    }
   8928      1.1  christos 	  BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
   8929      1.1  christos 			      ".got") == 0
   8930      1.1  christos 		      || strcmp (bfd_get_section_name (sec->owner, sec),
   8931      1.1  christos 				 ".cgot") == 0);
   8932      1.1  christos 
   8933      1.1  christos 	  addend -= sec->output_section->vma + sec->output_offset + 0x8000;
   8934      1.1  christos 	  break;
   8935      1.1  christos 
   8936      1.1  christos 	case R_PPC_PLTREL24:
   8937      1.1  christos 	  if (h != NULL && ifunc == NULL)
   8938      1.1  christos 	    {
   8939      1.1  christos 	      struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
   8940      1.1  christos 						    info->shared ? addend : 0);
   8941      1.1  christos 	      if (ent == NULL
   8942      1.1  christos 		  || htab->plt == NULL)
   8943      1.1  christos 		{
   8944      1.1  christos 		  /* We didn't make a PLT entry for this symbol.  This
   8945      1.1  christos 		     happens when statically linking PIC code, or when
   8946      1.1  christos 		     using -Bsymbolic.  */
   8947      1.1  christos 		}
   8948      1.1  christos 	      else
   8949      1.1  christos 		{
   8950      1.1  christos 		  /* Relocation is to the entry for this symbol in the
   8951      1.1  christos 		     procedure linkage table.  */
   8952      1.1  christos 		  unresolved_reloc = FALSE;
   8953      1.1  christos 		  if (htab->plt_type == PLT_NEW)
   8954      1.1  christos 		    relocation = (htab->glink->output_section->vma
   8955      1.1  christos 				  + htab->glink->output_offset
   8956      1.1  christos 				  + ent->glink_offset);
   8957      1.1  christos 		  else
   8958      1.1  christos 		    relocation = (htab->plt->output_section->vma
   8959      1.1  christos 				  + htab->plt->output_offset
   8960      1.1  christos 				  + ent->plt.offset);
   8961      1.1  christos 		}
   8962      1.1  christos 	    }
   8963      1.1  christos 
   8964      1.1  christos 	  /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   8965      1.1  christos 	     addend specifies the GOT pointer offset within .got2.
   8966      1.1  christos 	     Don't apply it to the relocation field.  */
   8967      1.1  christos 	  addend = 0;
   8968      1.1  christos 	  break;
   8969      1.1  christos 
   8970      1.3  christos 	  /* Relocate against _SDA_BASE_.  */
   8971      1.3  christos 	case R_PPC_SDAREL16:
   8972      1.1  christos 	  {
   8973      1.1  christos 	    const char *name;
   8974      1.1  christos 	    struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   8975      1.1  christos 
   8976      1.1  christos 	    if (sec == NULL
   8977      1.1  christos 		|| sec->output_section == NULL
   8978      1.1  christos 		|| !is_static_defined (sda))
   8979      1.1  christos 	      {
   8980      1.1  christos 		unresolved_reloc = TRUE;
   8981      1.1  christos 		break;
   8982      1.1  christos 	      }
   8983      1.1  christos 	    addend -= SYM_VAL (sda);
   8984      1.1  christos 
   8985      1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   8986      1.1  christos 	    if (!(strcmp (name, ".sdata") == 0
   8987      1.1  christos 		  || strcmp (name, ".sbss") == 0))
   8988      1.1  christos 	      {
   8989      1.1  christos 		info->callbacks->einfo
   8990      1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   8991      1.1  christos 		     "in the wrong output section (%s)\n"),
   8992      1.1  christos 		   input_bfd,
   8993      1.1  christos 		   sym_name,
   8994      1.1  christos 		   howto->name,
   8995      1.1  christos 		   name);
   8996      1.1  christos 	      }
   8997      1.1  christos 	  }
   8998      1.1  christos 	  break;
   8999      1.1  christos 
   9000      1.3  christos 	  /* Relocate against _SDA2_BASE_.  */
   9001      1.3  christos 	case R_PPC_EMB_SDA2REL:
   9002      1.1  christos 	  {
   9003      1.1  christos 	    const char *name;
   9004      1.1  christos 	    struct elf_link_hash_entry *sda = htab->sdata[1].sym;
   9005      1.1  christos 
   9006      1.1  christos 	    if (sec == NULL
   9007      1.1  christos 		|| sec->output_section == NULL
   9008      1.1  christos 		|| !is_static_defined (sda))
   9009      1.1  christos 	      {
   9010      1.1  christos 		unresolved_reloc = TRUE;
   9011      1.1  christos 		break;
   9012      1.1  christos 	      }
   9013      1.1  christos 	    addend -= SYM_VAL (sda);
   9014      1.1  christos 
   9015      1.3  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9016      1.3  christos 	    if (!(strcmp (name, ".sdata2") == 0
   9017      1.3  christos 		  || strcmp (name, ".sbss2") == 0))
   9018      1.1  christos 	      {
   9019      1.1  christos 		info->callbacks->einfo
   9020      1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   9021      1.3  christos 		     "in the wrong output section (%s)\n"),
   9022      1.3  christos 		   input_bfd,
   9023      1.3  christos 		   sym_name,
   9024      1.1  christos 		   howto->name,
   9025      1.1  christos 		   name);
   9026      1.1  christos 	      }
   9027      1.3  christos 	  }
   9028      1.3  christos 	  break;
   9029      1.3  christos 
   9030      1.1  christos 	case R_PPC_VLE_LO16A:
   9031      1.1  christos 	  relocation = relocation + addend;
   9032      1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9033      1.3  christos 			       relocation, split16a_type);
   9034      1.3  christos 	  continue;
   9035      1.3  christos 
   9036      1.1  christos 	case R_PPC_VLE_LO16D:
   9037      1.1  christos 	  relocation = relocation + addend;
   9038      1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9039      1.3  christos 			       relocation, split16d_type);
   9040      1.3  christos 	  continue;
   9041      1.3  christos 
   9042      1.1  christos 	case R_PPC_VLE_HI16A:
   9043      1.1  christos 	  relocation = (relocation + addend) >> 16;
   9044      1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9045      1.3  christos 			       relocation, split16a_type);
   9046      1.3  christos 	  continue;
   9047      1.3  christos 
   9048      1.1  christos 	case R_PPC_VLE_HI16D:
   9049      1.1  christos 	  relocation = (relocation + addend) >> 16;
   9050      1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9051      1.1  christos 			       relocation, split16d_type);
   9052      1.1  christos 	  continue;
   9053      1.1  christos 
   9054      1.1  christos 	case R_PPC_VLE_HA16A:
   9055      1.1  christos 	  relocation = (relocation + addend + 0x8000) >> 16;
   9056      1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9057      1.1  christos 			       relocation, split16a_type);
   9058      1.3  christos 	  continue;
   9059      1.1  christos 
   9060      1.1  christos 	case R_PPC_VLE_HA16D:
   9061      1.1  christos 	  relocation = (relocation + addend + 0x8000) >> 16;
   9062      1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9063      1.1  christos 			       relocation, split16d_type);
   9064      1.1  christos 	  continue;
   9065      1.1  christos 
   9066      1.1  christos 	  /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0.  */
   9067      1.1  christos 	case R_PPC_EMB_SDA21:
   9068      1.3  christos 	case R_PPC_VLE_SDA21:
   9069      1.3  christos 	case R_PPC_EMB_RELSDA:
   9070      1.1  christos 	case R_PPC_VLE_SDA21_LO:
   9071      1.1  christos 	  {
   9072      1.1  christos 	    const char *name;
   9073      1.1  christos 	    int reg;
   9074      1.3  christos 	    unsigned int insn;
   9075      1.3  christos 	    struct elf_link_hash_entry *sda = NULL;
   9076      1.1  christos 
   9077      1.1  christos 	    if (sec == NULL || sec->output_section == NULL)
   9078      1.1  christos 	      {
   9079      1.1  christos 		unresolved_reloc = TRUE;
   9080      1.1  christos 		break;
   9081      1.1  christos 	      }
   9082      1.1  christos 
   9083      1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9084      1.1  christos 	    if (strcmp (name, ".sdata") == 0
   9085      1.1  christos 		|| strcmp (name, ".sbss") == 0)
   9086      1.1  christos 	      {
   9087      1.1  christos 		reg = 13;
   9088      1.1  christos 		sda = htab->sdata[0].sym;
   9089      1.1  christos 	      }
   9090      1.1  christos 	    else if (strcmp (name, ".sdata2") == 0
   9091      1.1  christos 		     || strcmp (name, ".sbss2") == 0)
   9092      1.1  christos 	      {
   9093      1.1  christos 		reg = 2;
   9094      1.1  christos 		sda = htab->sdata[1].sym;
   9095      1.1  christos 	      }
   9096      1.1  christos 	    else if (strcmp (name, ".PPC.EMB.sdata0") == 0
   9097      1.1  christos 		     || strcmp (name, ".PPC.EMB.sbss0") == 0)
   9098      1.1  christos 	      {
   9099      1.1  christos 		reg = 0;
   9100      1.1  christos 	      }
   9101      1.1  christos 	    else
   9102      1.1  christos 	      {
   9103      1.1  christos 		info->callbacks->einfo
   9104      1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   9105      1.1  christos 		     "in the wrong output section (%s)\n"),
   9106      1.1  christos 		   input_bfd,
   9107      1.1  christos 		   sym_name,
   9108      1.1  christos 		   howto->name,
   9109      1.1  christos 		   name);
   9110      1.3  christos 
   9111      1.1  christos 		bfd_set_error (bfd_error_bad_value);
   9112      1.1  christos 		ret = FALSE;
   9113      1.1  christos 		continue;
   9114      1.1  christos 	      }
   9115      1.3  christos 
   9116      1.3  christos 	    if (sda != NULL)
   9117      1.3  christos 	      {
   9118      1.3  christos 		if (!is_static_defined (sda))
   9119      1.3  christos 		  {
   9120      1.3  christos 		    unresolved_reloc = TRUE;
   9121      1.3  christos 		    break;
   9122      1.3  christos 		  }
   9123      1.3  christos 		addend -= SYM_VAL (sda);
   9124      1.3  christos 	      }
   9125      1.3  christos 
   9126      1.3  christos 	    insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   9127      1.3  christos 	    if (reg == 0
   9128      1.3  christos 		&& (r_type == R_PPC_VLE_SDA21
   9129      1.3  christos 		    || r_type == R_PPC_VLE_SDA21_LO))
   9130      1.3  christos 	      {
   9131      1.3  christos 		relocation = relocation + addend;
   9132      1.3  christos 		addend = 0;
   9133      1.3  christos 
   9134      1.3  christos 		/* Force e_li insn, keeping RT from original insn.  */
   9135      1.1  christos 		insn &= 0x1f << 21;
   9136      1.1  christos 		insn |= 28u << 26;
   9137      1.1  christos 
   9138      1.1  christos 		/* We have an li20 field, bits 17..20, 11..15, 21..31.  */
   9139      1.1  christos 		/* Top 4 bits of value to 17..20.  */
   9140      1.1  christos 		insn |= (relocation & 0xf0000) >> 5;
   9141      1.3  christos 		/* Next 5 bits of the value to 11..15.  */
   9142      1.1  christos 		insn |= (relocation & 0xf800) << 5;
   9143      1.1  christos 		/* And the final 11 bits of the value to bits 21 to 31.  */
   9144      1.3  christos 		insn |= relocation & 0x7ff;
   9145      1.1  christos 
   9146      1.1  christos 		bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   9147      1.1  christos 
   9148      1.1  christos 		if (r_type == R_PPC_VLE_SDA21
   9149      1.1  christos 		    && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
   9150      1.1  christos 		  goto overflow;
   9151      1.1  christos 		continue;
   9152      1.1  christos 	      }
   9153      1.1  christos 	    else if (r_type == R_PPC_EMB_SDA21
   9154      1.1  christos 		     || r_type == R_PPC_VLE_SDA21
   9155      1.1  christos 		     || r_type == R_PPC_VLE_SDA21_LO)
   9156      1.1  christos 	      {
   9157      1.1  christos 		/* Fill in register field.  */
   9158      1.1  christos 		insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
   9159      1.1  christos 	      }
   9160      1.1  christos 	    bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   9161      1.1  christos 	  }
   9162      1.1  christos 	  break;
   9163      1.1  christos 
   9164      1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   9165      1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   9166      1.1  christos 	case R_PPC_VLE_SDAREL_HI16A:
   9167      1.3  christos 	case R_PPC_VLE_SDAREL_HI16D:
   9168      1.3  christos 	case R_PPC_VLE_SDAREL_HA16A:
   9169      1.1  christos 	case R_PPC_VLE_SDAREL_HA16D:
   9170      1.1  christos 	  {
   9171      1.1  christos 	    bfd_vma value;
   9172      1.1  christos 	    const char *name;
   9173      1.3  christos 	    //int reg;
   9174      1.3  christos 	    struct elf_link_hash_entry *sda = NULL;
   9175      1.1  christos 
   9176      1.1  christos 	    if (sec == NULL || sec->output_section == NULL)
   9177      1.1  christos 	      {
   9178      1.1  christos 		unresolved_reloc = TRUE;
   9179      1.1  christos 		break;
   9180      1.1  christos 	      }
   9181      1.1  christos 
   9182      1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9183      1.1  christos 	    if (strcmp (name, ".sdata") == 0
   9184      1.1  christos 		|| strcmp (name, ".sbss") == 0)
   9185      1.1  christos 	      {
   9186      1.1  christos 		//reg = 13;
   9187      1.1  christos 		sda = htab->sdata[0].sym;
   9188      1.1  christos 	      }
   9189      1.1  christos 	    else if (strcmp (name, ".sdata2") == 0
   9190      1.1  christos 		     || strcmp (name, ".sbss2") == 0)
   9191      1.1  christos 	      {
   9192      1.1  christos 		//reg = 2;
   9193      1.1  christos 		sda = htab->sdata[1].sym;
   9194      1.1  christos 	      }
   9195      1.1  christos 	    else
   9196      1.1  christos 	      {
   9197      1.1  christos 		(*_bfd_error_handler)
   9198      1.1  christos 		  (_("%B: the target (%s) of a %s relocation is "
   9199      1.1  christos 		     "in the wrong output section (%s)"),
   9200      1.1  christos 		   input_bfd,
   9201      1.1  christos 		   sym_name,
   9202      1.1  christos 		   howto->name,
   9203      1.3  christos 		   name);
   9204      1.3  christos 
   9205      1.3  christos 		bfd_set_error (bfd_error_bad_value);
   9206      1.3  christos 		ret = FALSE;
   9207      1.3  christos 		continue;
   9208      1.3  christos 	      }
   9209      1.3  christos 
   9210      1.3  christos 	    if (sda != NULL)
   9211      1.3  christos 	      {
   9212      1.3  christos 		if (!is_static_defined (sda))
   9213      1.3  christos 		  {
   9214      1.3  christos 		    unresolved_reloc = TRUE;
   9215      1.3  christos 		    break;
   9216      1.3  christos 		  }
   9217      1.3  christos 	      }
   9218      1.3  christos 
   9219      1.3  christos 	    value = (sda->root.u.def.section->output_section->vma
   9220      1.3  christos 		     + sda->root.u.def.section->output_offset
   9221      1.3  christos 		     + addend);
   9222      1.3  christos 
   9223      1.3  christos 	    if (r_type == R_PPC_VLE_SDAREL_LO16A)
   9224      1.3  christos 	      ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9225      1.3  christos 				   value, split16a_type);
   9226      1.3  christos 	    else if (r_type == R_PPC_VLE_SDAREL_LO16D)
   9227      1.3  christos 	      ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9228      1.3  christos 				   value, split16d_type);
   9229      1.3  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HI16A)
   9230      1.3  christos 	      {
   9231      1.3  christos 		value = value >> 16;
   9232      1.3  christos 		ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9233      1.3  christos 				     value, split16a_type);
   9234      1.3  christos 	      }
   9235      1.3  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HI16D)
   9236      1.1  christos 	      {
   9237      1.1  christos 		value = value >> 16;
   9238      1.1  christos 		ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9239      1.1  christos 				     value, split16d_type);
   9240      1.1  christos 	      }
   9241      1.1  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HA16A)
   9242      1.1  christos 	      {
   9243      1.1  christos 		value = (value + 0x8000) >> 16;
   9244      1.1  christos 		ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9245      1.1  christos 				     value, split16a_type);
   9246      1.1  christos 	      }
   9247      1.1  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HA16D)
   9248      1.1  christos 	      {
   9249      1.1  christos 		value = (value + 0x8000) >> 16;
   9250      1.1  christos 		ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9251      1.1  christos 				     value, split16d_type);
   9252      1.1  christos 	      }
   9253      1.1  christos 	  }
   9254      1.1  christos 	  continue;
   9255      1.1  christos 
   9256      1.1  christos 	  /* Relocate against the beginning of the section.  */
   9257      1.1  christos 	case R_PPC_SECTOFF:
   9258      1.1  christos 	case R_PPC_SECTOFF_LO:
   9259      1.1  christos 	case R_PPC_SECTOFF_HI:
   9260      1.1  christos 	case R_PPC_SECTOFF_HA:
   9261      1.1  christos 	  if (sec == NULL || sec->output_section == NULL)
   9262      1.1  christos 	    {
   9263      1.1  christos 	      unresolved_reloc = TRUE;
   9264      1.1  christos 	      break;
   9265      1.1  christos 	    }
   9266      1.1  christos 	  addend -= sec->output_section->vma;
   9267      1.1  christos 	  break;
   9268      1.1  christos 
   9269      1.1  christos 	  /* Negative relocations.  */
   9270      1.1  christos 	case R_PPC_EMB_NADDR32:
   9271      1.1  christos 	case R_PPC_EMB_NADDR16:
   9272      1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   9273      1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   9274      1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   9275      1.1  christos 	  addend -= 2 * relocation;
   9276      1.1  christos 	  break;
   9277      1.1  christos 
   9278      1.1  christos 	case R_PPC_COPY:
   9279      1.1  christos 	case R_PPC_GLOB_DAT:
   9280      1.1  christos 	case R_PPC_JMP_SLOT:
   9281      1.1  christos 	case R_PPC_RELATIVE:
   9282      1.1  christos 	case R_PPC_IRELATIVE:
   9283      1.1  christos 	case R_PPC_PLT32:
   9284      1.1  christos 	case R_PPC_PLTREL32:
   9285      1.1  christos 	case R_PPC_PLT16_LO:
   9286      1.1  christos 	case R_PPC_PLT16_HI:
   9287      1.1  christos 	case R_PPC_PLT16_HA:
   9288      1.1  christos 	case R_PPC_ADDR30:
   9289      1.1  christos 	case R_PPC_EMB_RELSEC16:
   9290      1.1  christos 	case R_PPC_EMB_RELST_LO:
   9291      1.1  christos 	case R_PPC_EMB_RELST_HI:
   9292      1.1  christos 	case R_PPC_EMB_RELST_HA:
   9293      1.1  christos 	case R_PPC_EMB_BIT_FLD:
   9294      1.1  christos 	  info->callbacks->einfo
   9295      1.1  christos 	    (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
   9296      1.1  christos 	     input_bfd,
   9297      1.1  christos 	     howto->name,
   9298      1.1  christos 	     sym_name);
   9299      1.1  christos 
   9300      1.1  christos 	  bfd_set_error (bfd_error_invalid_operation);
   9301      1.1  christos 	  ret = FALSE;
   9302      1.1  christos 	  continue;
   9303      1.1  christos 	}
   9304      1.1  christos 
   9305      1.1  christos       /* Do any further special processing.  */
   9306      1.1  christos       switch (r_type)
   9307      1.1  christos 	{
   9308      1.1  christos 	default:
   9309      1.1  christos 	  break;
   9310      1.1  christos 
   9311      1.1  christos 	case R_PPC_ADDR16_HA:
   9312      1.1  christos 	case R_PPC_REL16_HA:
   9313      1.1  christos 	case R_PPC_SECTOFF_HA:
   9314      1.1  christos 	case R_PPC_TPREL16_HA:
   9315      1.1  christos 	case R_PPC_DTPREL16_HA:
   9316      1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   9317      1.1  christos 	case R_PPC_EMB_RELST_HA:
   9318      1.1  christos 	  /* It's just possible that this symbol is a weak symbol
   9319      1.1  christos 	     that's not actually defined anywhere.  In that case,
   9320      1.1  christos 	     'sec' would be NULL, and we should leave the symbol
   9321      1.1  christos 	     alone (it will be set to zero elsewhere in the link).  */
   9322      1.1  christos 	  if (sec == NULL)
   9323      1.1  christos 	    break;
   9324      1.1  christos 	  /* Fall thru */
   9325      1.1  christos 
   9326      1.1  christos 	case R_PPC_PLT16_HA:
   9327      1.1  christos 	case R_PPC_GOT16_HA:
   9328      1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   9329      1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   9330      1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   9331      1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   9332      1.1  christos 	  /* Add 0x10000 if sign bit in 0:15 is set.
   9333      1.1  christos 	     Bits 0:15 are not used.  */
   9334      1.1  christos 	  addend += 0x8000;
   9335      1.1  christos 	  break;
   9336      1.1  christos 
   9337      1.1  christos 	case R_PPC_ADDR16:
   9338      1.1  christos 	case R_PPC_ADDR16_LO:
   9339      1.1  christos 	case R_PPC_GOT16:
   9340      1.1  christos 	case R_PPC_GOT16_LO:
   9341      1.1  christos 	case R_PPC_SDAREL16:
   9342      1.1  christos 	case R_PPC_SECTOFF:
   9343      1.1  christos 	case R_PPC_SECTOFF_LO:
   9344      1.1  christos 	case R_PPC_DTPREL16:
   9345      1.1  christos 	case R_PPC_DTPREL16_LO:
   9346      1.1  christos 	case R_PPC_TPREL16:
   9347      1.1  christos 	case R_PPC_TPREL16_LO:
   9348      1.1  christos 	case R_PPC_GOT_TLSGD16:
   9349      1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   9350      1.1  christos 	case R_PPC_GOT_TLSLD16:
   9351      1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   9352      1.1  christos 	case R_PPC_GOT_DTPREL16:
   9353      1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   9354      1.1  christos 	case R_PPC_GOT_TPREL16:
   9355      1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   9356      1.1  christos 	  {
   9357      1.1  christos 	    /* The 32-bit ABI lacks proper relocations to deal with
   9358      1.1  christos 	       certain 64-bit instructions.  Prevent damage to bits
   9359      1.1  christos 	       that make up part of the insn opcode.  */
   9360      1.1  christos 	    unsigned int insn, mask, lobit;
   9361      1.1  christos 
   9362      1.1  christos 	    insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
   9363      1.1  christos 	    mask = 0;
   9364      1.1  christos 	    if (is_insn_ds_form (insn))
   9365      1.1  christos 	      mask = 3;
   9366      1.1  christos 	    else if (is_insn_dq_form (insn))
   9367      1.1  christos 	      mask = 15;
   9368      1.1  christos 	    else
   9369      1.1  christos 	      break;
   9370      1.1  christos 	    lobit = mask & (relocation + addend);
   9371      1.1  christos 	    if (lobit != 0)
   9372      1.1  christos 	      {
   9373      1.1  christos 		addend -= lobit;
   9374      1.1  christos 		info->callbacks->einfo
   9375      1.1  christos 		  (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
   9376      1.1  christos 		   input_bfd, input_section, rel->r_offset,
   9377      1.1  christos 		   howto->name, sym_name, mask + 1);
   9378      1.1  christos 		bfd_set_error (bfd_error_bad_value);
   9379      1.1  christos 		ret = FALSE;
   9380      1.1  christos 	      }
   9381      1.1  christos 	    addend += insn & mask;
   9382      1.1  christos 	  }
   9383      1.1  christos 	  break;
   9384      1.1  christos 	}
   9385      1.1  christos 
   9386      1.1  christos #ifdef DEBUG
   9387      1.1  christos       fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
   9388      1.1  christos 	       "offset = %ld, addend = %ld\n",
   9389      1.1  christos 	       howto->name,
   9390      1.1  christos 	       (int) r_type,
   9391      1.1  christos 	       sym_name,
   9392      1.1  christos 	       r_symndx,
   9393      1.1  christos 	       (long) rel->r_offset,
   9394      1.1  christos 	       (long) addend);
   9395      1.3  christos #endif
   9396      1.3  christos 
   9397      1.3  christos       if (unresolved_reloc
   9398      1.3  christos 	  && !((input_section->flags & SEC_DEBUGGING) != 0
   9399      1.3  christos 	       && h->def_dynamic)
   9400      1.3  christos 	  && _bfd_elf_section_offset (output_bfd, info, input_section,
   9401      1.3  christos 				      rel->r_offset) != (bfd_vma) -1)
   9402      1.3  christos 	{
   9403      1.3  christos 	  info->callbacks->einfo
   9404      1.3  christos 	    (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
   9405      1.3  christos 	     input_bfd, input_section, rel->r_offset,
   9406      1.3  christos 	     howto->name,
   9407      1.3  christos 	     sym_name);
   9408      1.3  christos 	  ret = FALSE;
   9409      1.3  christos 	}
   9410      1.3  christos 
   9411      1.3  christos       /* 16-bit fields in insns mostly have signed values, but a
   9412      1.3  christos 	 few insns have 16-bit unsigned values.  Really, we should
   9413      1.3  christos 	 have different reloc types.  */
   9414      1.3  christos       if (howto->complain_on_overflow != complain_overflow_dont
   9415      1.3  christos 	  && howto->dst_mask == 0xffff
   9416      1.3  christos 	  && (input_section->flags & SEC_CODE) != 0)
   9417      1.3  christos 	{
   9418      1.3  christos 	  enum complain_overflow complain = complain_overflow_signed;
   9419      1.3  christos 
   9420      1.3  christos 	  if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
   9421      1.3  christos 	    {
   9422      1.3  christos 	      unsigned int insn;
   9423      1.3  christos 
   9424      1.3  christos 	      insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
   9425      1.3  christos 	      if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
   9426      1.1  christos 		complain = complain_overflow_bitfield;
   9427      1.1  christos 	      else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
   9428      1.1  christos 		       || (insn & (0x3f << 26)) == 24u << 26 /* ori */
   9429      1.1  christos 		       || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
   9430      1.1  christos 		complain = complain_overflow_unsigned;
   9431      1.3  christos 	    }
   9432  1.3.2.1  pgoyette 	  if (howto->complain_on_overflow != complain)
   9433  1.3.2.1  pgoyette 	    {
   9434  1.3.2.1  pgoyette 	      alt_howto = *howto;
   9435  1.3.2.1  pgoyette 	      alt_howto.complain_on_overflow = complain;
   9436  1.3.2.1  pgoyette 	      howto = &alt_howto;
   9437  1.3.2.1  pgoyette 	    }
   9438  1.3.2.1  pgoyette 	}
   9439  1.3.2.1  pgoyette 
   9440  1.3.2.1  pgoyette       r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
   9441  1.3.2.1  pgoyette 				    rel->r_offset, relocation, addend);
   9442  1.3.2.1  pgoyette 
   9443  1.3.2.1  pgoyette       if (r != bfd_reloc_ok)
   9444  1.3.2.1  pgoyette 	{
   9445      1.1  christos 	  if (r == bfd_reloc_overflow)
   9446      1.1  christos 	    {
   9447      1.1  christos 	    overflow:
   9448      1.1  christos 	      /* On code like "if (foo) foo();" don't report overflow
   9449      1.1  christos 		 on a branch to zero when foo is undefined.  */
   9450      1.1  christos 	      if (!warned
   9451      1.1  christos 		  && !(h != NULL
   9452      1.1  christos 		       && (h->root.type == bfd_link_hash_undefweak
   9453      1.1  christos 			   || h->root.type == bfd_link_hash_undefined)
   9454      1.1  christos 		       && is_branch_reloc (r_type)))
   9455      1.1  christos 		{
   9456      1.1  christos 		  if (!((*info->callbacks->reloc_overflow)
   9457      1.1  christos 			(info, (h ? &h->root : NULL), sym_name,
   9458      1.1  christos 			 howto->name, rel->r_addend,
   9459      1.1  christos 			 input_bfd, input_section, rel->r_offset)))
   9460      1.1  christos 		    return FALSE;
   9461      1.1  christos 		}
   9462      1.3  christos 	    }
   9463      1.3  christos 	  else
   9464      1.3  christos 	    {
   9465      1.3  christos 	      info->callbacks->einfo
   9466      1.3  christos 		(_("%P: %H: %s reloc against `%s': error %d\n"),
   9467      1.3  christos 		 input_bfd, input_section, rel->r_offset,
   9468      1.3  christos 		 howto->name, sym_name, (int) r);
   9469      1.3  christos 	      ret = FALSE;
   9470      1.3  christos 	    }
   9471      1.3  christos 	}
   9472      1.3  christos     }
   9473      1.3  christos 
   9474      1.3  christos #ifdef DEBUG
   9475      1.3  christos   fprintf (stderr, "\n");
   9476      1.3  christos #endif
   9477      1.3  christos 
   9478      1.3  christos   if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
   9479      1.3  christos       && input_section->size != input_section->rawsize
   9480      1.3  christos       && (strcmp (input_section->output_section->name, ".init") == 0
   9481      1.3  christos 	  || strcmp (input_section->output_section->name, ".fini") == 0))
   9482      1.3  christos     {
   9483      1.3  christos       /* Branch around the trampolines.  */
   9484      1.3  christos       unsigned int insn = B + input_section->size - input_section->rawsize;
   9485      1.3  christos       bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
   9486      1.3  christos     }
   9487      1.3  christos 
   9488      1.3  christos   if (htab->params->ppc476_workaround
   9489      1.3  christos       && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
   9490      1.3  christos       && (!info->relocatable
   9491      1.3  christos 	  || (input_section->output_section->alignment_power
   9492      1.3  christos 	      >= htab->params->pagesize_p2)))
   9493      1.3  christos     {
   9494      1.3  christos       bfd_vma start_addr, end_addr, addr;
   9495      1.3  christos       bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   9496      1.3  christos 
   9497      1.3  christos       if (relax_info->workaround_size != 0)
   9498      1.3  christos 	{
   9499      1.3  christos 	  bfd_byte *p;
   9500      1.3  christos 	  unsigned int n;
   9501      1.3  christos 	  bfd_byte fill[4];
   9502      1.3  christos 
   9503      1.3  christos 	  bfd_put_32 (input_bfd, BA, fill);
   9504      1.3  christos 	  p = contents + input_section->size - relax_info->workaround_size;
   9505      1.3  christos 	  n = relax_info->workaround_size >> 2;
   9506      1.3  christos 	  while (n--)
   9507      1.3  christos 	    {
   9508      1.3  christos 	      memcpy (p, fill, 4);
   9509      1.3  christos 	      p += 4;
   9510      1.3  christos 	    }
   9511      1.3  christos 	}
   9512      1.3  christos 
   9513      1.3  christos       /* The idea is: Replace the last instruction on a page with a
   9514      1.3  christos 	 branch to a patch area.  Put the insn there followed by a
   9515      1.3  christos 	 branch back to the next page.  Complicated a little by
   9516      1.3  christos 	 needing to handle moved conditional branches, and by not
   9517      1.3  christos 	 wanting to touch data-in-text.  */
   9518      1.3  christos 
   9519      1.3  christos       start_addr = (input_section->output_section->vma
   9520      1.3  christos 		    + input_section->output_offset);
   9521      1.3  christos       end_addr = (start_addr + input_section->size
   9522      1.3  christos 		  - relax_info->workaround_size);
   9523      1.3  christos       for (addr = ((start_addr & -pagesize) + pagesize - 4);
   9524      1.3  christos 	   addr < end_addr;
   9525      1.3  christos 	   addr += pagesize)
   9526      1.3  christos 	{
   9527      1.3  christos 	  bfd_vma offset = addr - start_addr;
   9528      1.3  christos 	  Elf_Internal_Rela *lo, *hi;
   9529      1.3  christos 	  bfd_boolean is_data;
   9530      1.3  christos 	  bfd_vma patch_off, patch_addr;
   9531      1.3  christos 	  unsigned int insn;
   9532      1.3  christos 
   9533      1.3  christos 	  /* Do we have a data reloc at this offset?  If so, leave
   9534      1.3  christos 	     the word alone.  */
   9535      1.3  christos 	  is_data = FALSE;
   9536      1.3  christos 	  lo = relocs;
   9537      1.3  christos 	  hi = relend;
   9538      1.3  christos 	  rel = NULL;
   9539      1.3  christos 	  while (lo < hi)
   9540      1.3  christos 	    {
   9541      1.3  christos 	      rel = lo + (hi - lo) / 2;
   9542      1.3  christos 	      if (rel->r_offset < offset)
   9543      1.3  christos 		lo = rel + 1;
   9544      1.3  christos 	      else if (rel->r_offset > offset + 3)
   9545      1.3  christos 		hi = rel;
   9546      1.3  christos 	      else
   9547      1.3  christos 		{
   9548      1.3  christos 		  switch (ELF32_R_TYPE (rel->r_info))
   9549      1.3  christos 		    {
   9550      1.3  christos 		    case R_PPC_ADDR32:
   9551      1.3  christos 		    case R_PPC_UADDR32:
   9552      1.3  christos 		    case R_PPC_REL32:
   9553      1.3  christos 		    case R_PPC_ADDR30:
   9554      1.3  christos 		      is_data = TRUE;
   9555      1.3  christos 		      break;
   9556      1.3  christos 		    default:
   9557      1.3  christos 		      break;
   9558      1.3  christos 		    }
   9559      1.3  christos 		  break;
   9560      1.3  christos 		}
   9561      1.3  christos 	    }
   9562      1.3  christos 	  if (is_data)
   9563      1.3  christos 	    continue;
   9564      1.3  christos 
   9565      1.3  christos 	  /* Some instructions can be left alone too.  Unconditional
   9566      1.3  christos 	     branches, except for bcctr with BO=0x14 (bctr, bctrl),
   9567      1.3  christos 	     avoid the icache failure.
   9568      1.3  christos 
   9569      1.3  christos 	     The problem occurs due to prefetch across a page boundary
   9570      1.3  christos 	     where stale instructions can be fetched from the next
   9571      1.3  christos 	     page, and the mechanism for flushing these bad
   9572      1.3  christos 	     instructions fails under certain circumstances.  The
   9573      1.3  christos 	     unconditional branches:
   9574      1.3  christos 	     1) Branch: b, bl, ba, bla,
   9575      1.3  christos 	     2) Branch Conditional: bc, bca, bcl, bcla,
   9576      1.3  christos 	     3) Branch Conditional to Link Register: bclr, bclrl,
   9577      1.3  christos 	     where (2) and (3) have BO=0x14 making them unconditional,
   9578      1.3  christos 	     prevent the bad prefetch because the prefetch itself is
   9579      1.3  christos 	     affected by these instructions.  This happens even if the
   9580      1.3  christos 	     instruction is not executed.
   9581      1.3  christos 
   9582      1.3  christos 	     A bctr example:
   9583      1.3  christos 	     .
   9584      1.3  christos 	     .	lis 9,new_page@ha
   9585      1.3  christos 	     .	addi 9,9,new_page@l
   9586      1.3  christos 	     .	mtctr 9
   9587      1.3  christos 	     .	bctr
   9588      1.3  christos 	     .	nop
   9589      1.3  christos 	     .	nop
   9590      1.3  christos 	     . new_page:
   9591      1.3  christos 	     .
   9592      1.3  christos 	     The bctr is not predicted taken due to ctr not being
   9593      1.3  christos 	     ready, so prefetch continues on past the bctr into the
   9594      1.3  christos 	     new page which might have stale instructions.  If they
   9595      1.3  christos 	     fail to be flushed, then they will be executed after the
   9596      1.3  christos 	     bctr executes.  Either of the following modifications
   9597      1.3  christos 	     prevent the bad prefetch from happening in the first
   9598      1.3  christos 	     place:
   9599      1.3  christos 	     .
   9600      1.3  christos 	     .	lis 9,new_page@ha	 lis 9,new_page@ha
   9601      1.3  christos 	     .	addi 9,9,new_page@l	 addi 9,9,new_page@l
   9602      1.3  christos 	     .	mtctr 9			 mtctr 9
   9603      1.3  christos 	     .	bctr			 bctr
   9604      1.3  christos 	     .	nop			 b somewhere_else
   9605      1.3  christos 	     .	b somewhere_else	 nop
   9606      1.3  christos 	     . new_page:		new_page:
   9607      1.3  christos 	     .  */
   9608      1.3  christos 	  insn = bfd_get_32 (input_bfd, contents + offset);
   9609      1.3  christos 	  if ((insn & (0x3f << 26)) == (18u << 26)          /* b,bl,ba,bla */
   9610      1.3  christos 	      || ((insn & (0x3f << 26)) == (16u << 26)      /* bc,bcl,bca,bcla*/
   9611  1.3.2.1  pgoyette 		  && (insn & (0x14 << 21)) == (0x14 << 21)) /*   with BO=0x14 */
   9612  1.3.2.1  pgoyette 	      || ((insn & (0x3f << 26)) == (19u << 26)
   9613      1.3  christos 		  && (insn & (0x3ff << 1)) == (16u << 1)    /* bclr,bclrl */
   9614      1.3  christos 		  && (insn & (0x14 << 21)) == (0x14 << 21)))/*   with BO=0x14 */
   9615      1.3  christos 	    continue;
   9616      1.3  christos 
   9617      1.3  christos 	  patch_addr = (start_addr + input_section->size
   9618      1.3  christos 			- relax_info->workaround_size);
   9619      1.3  christos 	  patch_addr = (patch_addr + 15) & -16;
   9620      1.3  christos 	  patch_off = patch_addr - start_addr;
   9621      1.3  christos 	  bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
   9622      1.3  christos 
   9623      1.3  christos 	  if (rel != NULL
   9624      1.3  christos 	      && rel->r_offset >= offset
   9625  1.3.2.1  pgoyette 	      && rel->r_offset < offset + 4)
   9626  1.3.2.1  pgoyette 	    {
   9627  1.3.2.1  pgoyette 	      asection *sreloc;
   9628  1.3.2.1  pgoyette 
   9629  1.3.2.1  pgoyette 	      /* If the insn we are patching had a reloc, adjust the
   9630  1.3.2.1  pgoyette 		 reloc r_offset so that the reloc applies to the moved
   9631  1.3.2.1  pgoyette 		 location.  This matters for -r and --emit-relocs.  */
   9632  1.3.2.1  pgoyette 	      if (rel + 1 != relend)
   9633  1.3.2.1  pgoyette 		{
   9634  1.3.2.1  pgoyette 		  Elf_Internal_Rela tmp = *rel;
   9635  1.3.2.1  pgoyette 
   9636  1.3.2.1  pgoyette 		  /* Keep the relocs sorted by r_offset.  */
   9637  1.3.2.1  pgoyette 		  memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
   9638  1.3.2.1  pgoyette 		  relend[-1] = tmp;
   9639  1.3.2.1  pgoyette 		}
   9640  1.3.2.1  pgoyette 	      relend[-1].r_offset += patch_off - offset;
   9641  1.3.2.1  pgoyette 
   9642  1.3.2.1  pgoyette 	      /* Adjust REL16 addends too.  */
   9643  1.3.2.1  pgoyette 	      switch (ELF32_R_TYPE (relend[-1].r_info))
   9644  1.3.2.1  pgoyette 		{
   9645  1.3.2.1  pgoyette 		case R_PPC_REL16:
   9646  1.3.2.1  pgoyette 		case R_PPC_REL16_LO:
   9647  1.3.2.1  pgoyette 		case R_PPC_REL16_HI:
   9648  1.3.2.1  pgoyette 		case R_PPC_REL16_HA:
   9649  1.3.2.1  pgoyette 		  relend[-1].r_addend += patch_off - offset;
   9650  1.3.2.1  pgoyette 		  break;
   9651  1.3.2.1  pgoyette 		default:
   9652  1.3.2.1  pgoyette 		  break;
   9653  1.3.2.1  pgoyette 		}
   9654  1.3.2.1  pgoyette 
   9655  1.3.2.1  pgoyette 	      /* If we are building a PIE or shared library with
   9656  1.3.2.1  pgoyette 		 non-PIC objects, perhaps we had a dynamic reloc too?
   9657  1.3.2.1  pgoyette 		 If so, the dynamic reloc must move with the insn.  */
   9658  1.3.2.1  pgoyette 	      sreloc = elf_section_data (input_section)->sreloc;
   9659  1.3.2.1  pgoyette 	      if (sreloc != NULL)
   9660  1.3.2.1  pgoyette 		{
   9661  1.3.2.1  pgoyette 		  Elf32_External_Rela *slo, *shi, *srelend;
   9662  1.3.2.1  pgoyette 		  bfd_vma soffset;
   9663  1.3.2.1  pgoyette 
   9664  1.3.2.1  pgoyette 		  slo = (Elf32_External_Rela *) sreloc->contents;
   9665  1.3.2.1  pgoyette 		  shi = srelend = slo + sreloc->reloc_count;
   9666  1.3.2.1  pgoyette 		  soffset = (offset + input_section->output_section->vma
   9667  1.3.2.1  pgoyette 			     + input_section->output_offset);
   9668  1.3.2.1  pgoyette 		  while (slo < shi)
   9669  1.3.2.1  pgoyette 		    {
   9670  1.3.2.1  pgoyette 		      Elf32_External_Rela *srel = slo + (shi - slo) / 2;
   9671  1.3.2.1  pgoyette 		      bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
   9672  1.3.2.1  pgoyette 						&outrel);
   9673  1.3.2.1  pgoyette 		      if (outrel.r_offset < soffset)
   9674  1.3.2.1  pgoyette 			slo = srel + 1;
   9675  1.3.2.1  pgoyette 		      else if (outrel.r_offset > soffset + 3)
   9676      1.3  christos 			shi = srel;
   9677      1.3  christos 		      else
   9678      1.3  christos 			{
   9679      1.3  christos 			  if (srel + 1 != srelend)
   9680      1.3  christos 			    {
   9681      1.3  christos 			      memmove (srel, srel + 1,
   9682      1.3  christos 				       (srelend - (srel + 1)) * sizeof (*srel));
   9683      1.3  christos 			      srel = srelend - 1;
   9684      1.3  christos 			    }
   9685      1.3  christos 			  outrel.r_offset += patch_off - offset;
   9686      1.3  christos 			  bfd_elf32_swap_reloca_out (output_bfd, &outrel,
   9687      1.3  christos 						     (bfd_byte *) srel);
   9688      1.3  christos 			  break;
   9689      1.3  christos 			}
   9690      1.3  christos 		    }
   9691      1.3  christos 		}
   9692      1.3  christos 	    }
   9693      1.3  christos 	  else
   9694      1.3  christos 	    rel = NULL;
   9695      1.3  christos 
   9696      1.3  christos 	  if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
   9697      1.3  christos 	      && (insn & 2) == 0 /* relative */)
   9698      1.3  christos 	    {
   9699      1.3  christos 	      bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
   9700      1.3  christos 
   9701      1.3  christos 	      delta += offset - patch_off;
   9702      1.3  christos 	      if (info->relocatable && rel != NULL)
   9703      1.3  christos 		delta = 0;
   9704      1.3  christos 	      if (!info->relocatable && rel != NULL)
   9705      1.3  christos 		{
   9706      1.3  christos 		  enum elf_ppc_reloc_type r_type;
   9707      1.3  christos 
   9708      1.3  christos 		  r_type = ELF32_R_TYPE (relend[-1].r_info);
   9709      1.3  christos 		  if (r_type == R_PPC_REL14_BRTAKEN)
   9710      1.3  christos 		    insn |= BRANCH_PREDICT_BIT;
   9711      1.3  christos 		  else if (r_type == R_PPC_REL14_BRNTAKEN)
   9712      1.3  christos 		    insn &= ~BRANCH_PREDICT_BIT;
   9713      1.3  christos 		  else
   9714      1.3  christos 		    BFD_ASSERT (r_type == R_PPC_REL14);
   9715      1.3  christos 
   9716      1.3  christos 		  if ((r_type == R_PPC_REL14_BRTAKEN
   9717      1.3  christos 		       || r_type == R_PPC_REL14_BRNTAKEN)
   9718      1.3  christos 		      && delta + 0x8000 < 0x10000
   9719      1.3  christos 		      && (bfd_signed_vma) delta < 0)
   9720      1.3  christos 		    insn ^= BRANCH_PREDICT_BIT;
   9721      1.3  christos 		}
   9722      1.3  christos 	      if (delta + 0x8000 < 0x10000)
   9723      1.3  christos 		{
   9724      1.3  christos 		  bfd_put_32 (input_bfd,
   9725      1.3  christos 			      (insn & ~0xfffc) | (delta & 0xfffc),
   9726      1.3  christos 			      contents + patch_off);
   9727      1.3  christos 		  patch_off += 4;
   9728      1.3  christos 		  bfd_put_32 (input_bfd,
   9729      1.3  christos 			      B | ((offset + 4 - patch_off) & 0x3fffffc),
   9730      1.3  christos 			      contents + patch_off);
   9731      1.3  christos 		  patch_off += 4;
   9732      1.3  christos 		}
   9733      1.3  christos 	      else
   9734      1.3  christos 		{
   9735      1.3  christos 		  if (rel != NULL)
   9736      1.3  christos 		    {
   9737      1.3  christos 		      unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
   9738      1.3  christos 
   9739      1.3  christos 		      relend[-1].r_offset += 8;
   9740      1.3  christos 		      relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
   9741      1.3  christos 		    }
   9742      1.3  christos 		  bfd_put_32 (input_bfd,
   9743      1.3  christos 			      (insn & ~0xfffc) | 8,
   9744      1.3  christos 			      contents + patch_off);
   9745      1.3  christos 		  patch_off += 4;
   9746      1.3  christos 		  bfd_put_32 (input_bfd,
   9747      1.3  christos 			      B | ((offset + 4 - patch_off) & 0x3fffffc),
   9748      1.3  christos 			      contents + patch_off);
   9749      1.3  christos 		  patch_off += 4;
   9750      1.3  christos 		  bfd_put_32 (input_bfd,
   9751      1.3  christos 			      B | ((delta - 8) & 0x3fffffc),
   9752      1.3  christos 			      contents + patch_off);
   9753      1.3  christos 		  patch_off += 4;
   9754      1.1  christos 		}
   9755      1.1  christos 	    }
   9756      1.1  christos 	  else
   9757      1.1  christos 	    {
   9758      1.1  christos 	      bfd_put_32 (input_bfd, insn, contents + patch_off);
   9759      1.1  christos 	      patch_off += 4;
   9760      1.1  christos 	      bfd_put_32 (input_bfd,
   9761      1.1  christos 			  B | ((offset + 4 - patch_off) & 0x3fffffc),
   9762      1.1  christos 			  contents + patch_off);
   9763      1.1  christos 	      patch_off += 4;
   9764      1.1  christos 	    }
   9765      1.1  christos 	  BFD_ASSERT (patch_off <= input_section->size);
   9766      1.1  christos 	  relax_info->workaround_size = input_section->size - patch_off;
   9767      1.1  christos 	}
   9768      1.1  christos     }
   9769      1.1  christos 
   9770      1.1  christos   return ret;
   9771      1.1  christos }
   9772      1.1  christos 
   9773      1.1  christos /* Finish up dynamic symbol handling.  We set the contents of various
   9775      1.1  christos    dynamic sections here.  */
   9776      1.1  christos 
   9777      1.1  christos static bfd_boolean
   9778      1.1  christos ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
   9779      1.1  christos 			       struct bfd_link_info *info,
   9780      1.1  christos 			       struct elf_link_hash_entry *h,
   9781      1.1  christos 			       Elf_Internal_Sym *sym)
   9782      1.1  christos {
   9783      1.1  christos   struct ppc_elf_link_hash_table *htab;
   9784      1.1  christos   struct plt_entry *ent;
   9785      1.1  christos   bfd_boolean doneone;
   9786      1.1  christos 
   9787      1.1  christos #ifdef DEBUG
   9788      1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
   9789      1.1  christos 	   h->root.root.string);
   9790      1.1  christos #endif
   9791      1.1  christos 
   9792      1.1  christos   htab = ppc_elf_hash_table (info);
   9793      1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   9794      1.1  christos 
   9795      1.1  christos   doneone = FALSE;
   9796      1.1  christos   for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   9797      1.1  christos     if (ent->plt.offset != (bfd_vma) -1)
   9798      1.1  christos       {
   9799      1.1  christos 	if (!doneone)
   9800      1.1  christos 	  {
   9801      1.1  christos 	    Elf_Internal_Rela rela;
   9802      1.1  christos 	    bfd_byte *loc;
   9803      1.1  christos 	    bfd_vma reloc_index;
   9804      1.1  christos 
   9805      1.1  christos 	    if (htab->plt_type == PLT_NEW
   9806      1.1  christos 		|| !htab->elf.dynamic_sections_created
   9807      1.1  christos 		|| h->dynindx == -1)
   9808      1.1  christos 	      reloc_index = ent->plt.offset / 4;
   9809      1.1  christos 	    else
   9810      1.1  christos 	      {
   9811      1.1  christos 		reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
   9812      1.1  christos 			       / htab->plt_slot_size);
   9813      1.1  christos 		if (reloc_index > PLT_NUM_SINGLE_ENTRIES
   9814      1.1  christos 		    && htab->plt_type == PLT_OLD)
   9815      1.1  christos 		  reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
   9816      1.1  christos 	      }
   9817      1.1  christos 
   9818      1.1  christos 	    /* This symbol has an entry in the procedure linkage table.
   9819      1.1  christos 	       Set it up.  */
   9820      1.1  christos 	    if (htab->plt_type == PLT_VXWORKS
   9821      1.1  christos 		&& htab->elf.dynamic_sections_created
   9822      1.1  christos 		&& h->dynindx != -1)
   9823      1.1  christos 	      {
   9824      1.1  christos 		bfd_vma got_offset;
   9825      1.1  christos 		const bfd_vma *plt_entry;
   9826      1.1  christos 
   9827      1.1  christos 		/* The first three entries in .got.plt are reserved.  */
   9828      1.1  christos 		got_offset = (reloc_index + 3) * 4;
   9829      1.1  christos 
   9830      1.1  christos 		/* Use the right PLT. */
   9831      1.1  christos 		plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
   9832      1.1  christos 			    : ppc_elf_vxworks_plt_entry;
   9833      1.1  christos 
   9834      1.1  christos 		/* Fill in the .plt on VxWorks.  */
   9835      1.1  christos 		if (info->shared)
   9836      1.1  christos 		  {
   9837      1.1  christos 		    bfd_put_32 (output_bfd,
   9838      1.1  christos 				plt_entry[0] | PPC_HA (got_offset),
   9839      1.1  christos 				htab->plt->contents + ent->plt.offset + 0);
   9840      1.1  christos 		    bfd_put_32 (output_bfd,
   9841      1.1  christos 				plt_entry[1] | PPC_LO (got_offset),
   9842      1.1  christos 				htab->plt->contents + ent->plt.offset + 4);
   9843      1.1  christos 		  }
   9844      1.1  christos 		else
   9845      1.1  christos 		  {
   9846      1.1  christos 		    bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
   9847      1.1  christos 
   9848      1.1  christos 		    bfd_put_32 (output_bfd,
   9849      1.1  christos 				plt_entry[0] | PPC_HA (got_loc),
   9850      1.1  christos 				htab->plt->contents + ent->plt.offset + 0);
   9851      1.1  christos 		    bfd_put_32 (output_bfd,
   9852      1.1  christos 				plt_entry[1] | PPC_LO (got_loc),
   9853      1.1  christos 				htab->plt->contents + ent->plt.offset + 4);
   9854      1.1  christos 		  }
   9855      1.1  christos 
   9856      1.1  christos 		bfd_put_32 (output_bfd, plt_entry[2],
   9857      1.1  christos 			    htab->plt->contents + ent->plt.offset + 8);
   9858      1.1  christos 		bfd_put_32 (output_bfd, plt_entry[3],
   9859      1.1  christos 			    htab->plt->contents + ent->plt.offset + 12);
   9860      1.1  christos 
   9861      1.1  christos 		/* This instruction is an immediate load.  The value loaded is
   9862      1.1  christos 		   the byte offset of the R_PPC_JMP_SLOT relocation from the
   9863      1.1  christos 		   start of the .rela.plt section.  The value is stored in the
   9864      1.1  christos 		   low-order 16 bits of the load instruction.  */
   9865      1.1  christos 		/* NOTE: It appears that this is now an index rather than a
   9866      1.1  christos 		   prescaled offset.  */
   9867      1.1  christos 		bfd_put_32 (output_bfd,
   9868      1.1  christos 			    plt_entry[4] | reloc_index,
   9869      1.1  christos 			    htab->plt->contents + ent->plt.offset + 16);
   9870      1.1  christos 		/* This instruction is a PC-relative branch whose target is
   9871      1.1  christos 		   the start of the PLT section.  The address of this branch
   9872      1.1  christos 		   instruction is 20 bytes beyond the start of this PLT entry.
   9873      1.1  christos 		   The address is encoded in bits 6-29, inclusive.  The value
   9874      1.1  christos 		   stored is right-shifted by two bits, permitting a 26-bit
   9875      1.1  christos 		   offset.  */
   9876      1.1  christos 		bfd_put_32 (output_bfd,
   9877      1.1  christos 			    (plt_entry[5]
   9878      1.1  christos 			     | (-(ent->plt.offset + 20) & 0x03fffffc)),
   9879      1.1  christos 			    htab->plt->contents + ent->plt.offset + 20);
   9880      1.1  christos 		bfd_put_32 (output_bfd, plt_entry[6],
   9881      1.1  christos 			    htab->plt->contents + ent->plt.offset + 24);
   9882      1.1  christos 		bfd_put_32 (output_bfd, plt_entry[7],
   9883      1.1  christos 			    htab->plt->contents + ent->plt.offset + 28);
   9884      1.1  christos 
   9885      1.1  christos 		/* Fill in the GOT entry corresponding to this PLT slot with
   9886      1.1  christos 		   the address immediately after the "bctr" instruction
   9887      1.1  christos 		   in this PLT entry.  */
   9888      1.1  christos 		bfd_put_32 (output_bfd, (htab->plt->output_section->vma
   9889      1.1  christos 					 + htab->plt->output_offset
   9890      1.1  christos 					 + ent->plt.offset + 16),
   9891      1.1  christos 			    htab->sgotplt->contents + got_offset);
   9892      1.1  christos 
   9893      1.1  christos 		if (!info->shared)
   9894      1.1  christos 		  {
   9895      1.1  christos 		    /* Fill in a couple of entries in .rela.plt.unloaded.  */
   9896      1.1  christos 		    loc = htab->srelplt2->contents
   9897      1.1  christos 		      + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
   9898      1.1  christos 			  * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
   9899      1.1  christos 			 * sizeof (Elf32_External_Rela));
   9900      1.1  christos 
   9901      1.1  christos 		    /* Provide the @ha relocation for the first instruction.  */
   9902      1.1  christos 		    rela.r_offset = (htab->plt->output_section->vma
   9903      1.1  christos 				     + htab->plt->output_offset
   9904      1.1  christos 				     + ent->plt.offset + 2);
   9905      1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   9906      1.1  christos 						R_PPC_ADDR16_HA);
   9907      1.1  christos 		    rela.r_addend = got_offset;
   9908      1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9909      1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   9910      1.1  christos 
   9911      1.1  christos 		    /* Provide the @l relocation for the second instruction.  */
   9912      1.1  christos 		    rela.r_offset = (htab->plt->output_section->vma
   9913      1.1  christos 				     + htab->plt->output_offset
   9914      1.1  christos 				     + ent->plt.offset + 6);
   9915      1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   9916      1.1  christos 						R_PPC_ADDR16_LO);
   9917      1.1  christos 		    rela.r_addend = got_offset;
   9918      1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9919      1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   9920      1.1  christos 
   9921      1.1  christos 		    /* Provide a relocation for the GOT entry corresponding to this
   9922      1.1  christos 		       PLT slot.  Point it at the middle of the .plt entry.  */
   9923      1.1  christos 		    rela.r_offset = (htab->sgotplt->output_section->vma
   9924      1.1  christos 				     + htab->sgotplt->output_offset
   9925      1.1  christos 				     + got_offset);
   9926      1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
   9927      1.1  christos 						R_PPC_ADDR32);
   9928      1.1  christos 		    rela.r_addend = ent->plt.offset + 16;
   9929      1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9930      1.1  christos 		  }
   9931      1.1  christos 
   9932      1.1  christos 		/* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
   9933      1.1  christos 		   In particular, the offset for the relocation is not the
   9934      1.1  christos 		   address of the PLT entry for this function, as specified
   9935      1.1  christos 		   by the ABI.  Instead, the offset is set to the address of
   9936      1.1  christos 		   the GOT slot for this function.  See EABI 4.4.4.1.  */
   9937      1.1  christos 		rela.r_offset = (htab->sgotplt->output_section->vma
   9938      1.1  christos 				 + htab->sgotplt->output_offset
   9939      1.1  christos 				 + got_offset);
   9940      1.1  christos 
   9941      1.1  christos 	      }
   9942      1.1  christos 	    else
   9943      1.1  christos 	      {
   9944      1.1  christos 		asection *splt = htab->plt;
   9945      1.1  christos 		if (!htab->elf.dynamic_sections_created
   9946      1.1  christos 		    || h->dynindx == -1)
   9947      1.1  christos 		  splt = htab->iplt;
   9948      1.1  christos 
   9949      1.1  christos 		rela.r_offset = (splt->output_section->vma
   9950      1.1  christos 				 + splt->output_offset
   9951      1.1  christos 				 + ent->plt.offset);
   9952      1.1  christos 		if (htab->plt_type == PLT_OLD
   9953      1.1  christos 		    || !htab->elf.dynamic_sections_created
   9954      1.1  christos 		    || h->dynindx == -1)
   9955      1.1  christos 		  {
   9956      1.1  christos 		    /* We don't need to fill in the .plt.  The ppc dynamic
   9957      1.1  christos 		       linker will fill it in.  */
   9958      1.1  christos 		  }
   9959      1.1  christos 		else
   9960      1.1  christos 		  {
   9961      1.1  christos 		    bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
   9962      1.1  christos 				   + htab->glink->output_section->vma
   9963      1.1  christos 				   + htab->glink->output_offset);
   9964      1.1  christos 		    bfd_put_32 (output_bfd, val,
   9965      1.1  christos 				splt->contents + ent->plt.offset);
   9966      1.1  christos 		  }
   9967      1.1  christos 	      }
   9968      1.1  christos 
   9969      1.1  christos 	    /* Fill in the entry in the .rela.plt section.  */
   9970      1.1  christos 	    rela.r_addend = 0;
   9971      1.1  christos 	    if (!htab->elf.dynamic_sections_created
   9972      1.1  christos 		|| h->dynindx == -1)
   9973      1.1  christos 	      {
   9974      1.1  christos 		BFD_ASSERT (h->type == STT_GNU_IFUNC
   9975      1.1  christos 			    && h->def_regular
   9976      1.1  christos 			    && (h->root.type == bfd_link_hash_defined
   9977      1.1  christos 				|| h->root.type == bfd_link_hash_defweak));
   9978      1.1  christos 		rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   9979      1.1  christos 		rela.r_addend = SYM_VAL (h);
   9980      1.1  christos 	      }
   9981      1.1  christos 	    else
   9982      1.1  christos 	      rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
   9983      1.1  christos 
   9984      1.1  christos 	    if (!htab->elf.dynamic_sections_created
   9985      1.1  christos 		|| h->dynindx == -1)
   9986      1.1  christos 	      loc = (htab->reliplt->contents
   9987      1.1  christos 		     + (htab->reliplt->reloc_count++
   9988      1.1  christos 			* sizeof (Elf32_External_Rela)));
   9989      1.1  christos 	    else
   9990      1.1  christos 	      loc = (htab->relplt->contents
   9991      1.1  christos 		     + reloc_index * sizeof (Elf32_External_Rela));
   9992      1.1  christos 	    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9993      1.1  christos 
   9994      1.1  christos 	    if (!h->def_regular)
   9995      1.1  christos 	      {
   9996      1.1  christos 		/* Mark the symbol as undefined, rather than as
   9997      1.1  christos 		   defined in the .plt section.  Leave the value if
   9998      1.1  christos 		   there were any relocations where pointer equality
   9999      1.1  christos 		   matters (this is a clue for the dynamic linker, to
   10000      1.1  christos 		   make function pointer comparisons work between an
   10001      1.1  christos 		   application and shared library), otherwise set it
   10002      1.1  christos 		   to zero.  */
   10003      1.1  christos 		sym->st_shndx = SHN_UNDEF;
   10004      1.1  christos 		if (!h->pointer_equality_needed)
   10005      1.1  christos 		  sym->st_value = 0;
   10006      1.1  christos 		else if (!h->ref_regular_nonweak)
   10007      1.1  christos 		  {
   10008      1.1  christos 		    /* This breaks function pointer comparisons, but
   10009      1.1  christos 		       that is better than breaking tests for a NULL
   10010      1.1  christos 		       function pointer.  */
   10011      1.1  christos 		    sym->st_value = 0;
   10012      1.1  christos 		  }
   10013      1.1  christos 	      }
   10014      1.1  christos 	    else if (h->type == STT_GNU_IFUNC
   10015      1.1  christos 		     && !info->shared)
   10016      1.1  christos 	      {
   10017      1.1  christos 		/* Set the value of ifunc symbols in a non-pie
   10018      1.1  christos 		   executable to the glink entry.  This is to avoid
   10019      1.1  christos 		   text relocations.  We can't do this for ifunc in
   10020      1.1  christos 		   allocate_dynrelocs, as we do for normal dynamic
   10021      1.1  christos 		   function symbols with plt entries, because we need
   10022      1.1  christos 		   to keep the original value around for the ifunc
   10023      1.1  christos 		   relocation.  */
   10024      1.1  christos 		sym->st_shndx = (_bfd_elf_section_from_bfd_section
   10025      1.1  christos 				 (output_bfd, htab->glink->output_section));
   10026      1.1  christos 		sym->st_value = (ent->glink_offset
   10027      1.1  christos 				 + htab->glink->output_offset
   10028      1.3  christos 				 + htab->glink->output_section->vma);
   10029      1.1  christos 	      }
   10030      1.1  christos 	    doneone = TRUE;
   10031      1.1  christos 	  }
   10032      1.1  christos 
   10033      1.1  christos 	if (htab->plt_type == PLT_NEW
   10034      1.1  christos 	    || !htab->elf.dynamic_sections_created
   10035      1.1  christos 	    || h->dynindx == -1)
   10036      1.1  christos 	  {
   10037      1.1  christos 	    unsigned char *p;
   10038      1.1  christos 	    asection *splt = htab->plt;
   10039      1.1  christos 	    if (!htab->elf.dynamic_sections_created
   10040      1.1  christos 		|| h->dynindx == -1)
   10041      1.1  christos 	      splt = htab->iplt;
   10042      1.1  christos 
   10043      1.1  christos 	    p = (unsigned char *) htab->glink->contents + ent->glink_offset;
   10044      1.1  christos 
   10045      1.1  christos 	    if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
   10046      1.1  christos 	      {
   10047      1.1  christos 		bfd_put_32 (output_bfd, LWZ_11_3, p);
   10048      1.1  christos 		p += 4;
   10049      1.1  christos 		bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
   10050      1.1  christos 		p += 4;
   10051      1.1  christos 		bfd_put_32 (output_bfd, MR_0_3, p);
   10052      1.1  christos 		p += 4;
   10053      1.1  christos 		bfd_put_32 (output_bfd, CMPWI_11_0, p);
   10054      1.1  christos 		p += 4;
   10055      1.1  christos 		bfd_put_32 (output_bfd, ADD_3_12_2, p);
   10056      1.1  christos 		p += 4;
   10057      1.1  christos 		bfd_put_32 (output_bfd, BEQLR, p);
   10058      1.1  christos 		p += 4;
   10059      1.1  christos 		bfd_put_32 (output_bfd, MR_3_0, p);
   10060      1.1  christos 		p += 4;
   10061      1.1  christos 		bfd_put_32 (output_bfd, NOP, p);
   10062      1.1  christos 		p += 4;
   10063      1.1  christos 	      }
   10064      1.1  christos 
   10065      1.1  christos 	    write_glink_stub (ent, splt, p, info);
   10066      1.1  christos 
   10067      1.1  christos 	    if (!info->shared)
   10068      1.1  christos 	      /* We only need one non-PIC glink stub.  */
   10069      1.1  christos 	      break;
   10070      1.1  christos 	  }
   10071      1.1  christos 	else
   10072      1.1  christos 	  break;
   10073      1.1  christos       }
   10074      1.1  christos 
   10075      1.1  christos   if (h->needs_copy)
   10076      1.1  christos     {
   10077      1.1  christos       asection *s;
   10078      1.1  christos       Elf_Internal_Rela rela;
   10079      1.1  christos       bfd_byte *loc;
   10080      1.1  christos 
   10081      1.1  christos       /* This symbols needs a copy reloc.  Set it up.  */
   10082      1.1  christos 
   10083      1.1  christos #ifdef DEBUG
   10084      1.1  christos       fprintf (stderr, ", copy");
   10085      1.1  christos #endif
   10086      1.1  christos 
   10087      1.1  christos       BFD_ASSERT (h->dynindx != -1);
   10088      1.1  christos 
   10089      1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   10090      1.1  christos 	s = htab->relsbss;
   10091      1.1  christos       else
   10092      1.1  christos 	s = htab->relbss;
   10093      1.1  christos       BFD_ASSERT (s != NULL);
   10094      1.1  christos 
   10095      1.1  christos       rela.r_offset = SYM_VAL (h);
   10096      1.1  christos       rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
   10097      1.1  christos       rela.r_addend = 0;
   10098      1.1  christos       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
   10099      1.1  christos       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10100      1.1  christos     }
   10101      1.1  christos 
   10102      1.1  christos #ifdef DEBUG
   10103      1.1  christos   fprintf (stderr, "\n");
   10104      1.1  christos #endif
   10105      1.1  christos 
   10106      1.1  christos   return TRUE;
   10107      1.1  christos }
   10108      1.1  christos 
   10109      1.1  christos static enum elf_reloc_type_class
   10111      1.1  christos ppc_elf_reloc_type_class (const struct bfd_link_info *info,
   10112      1.1  christos 			  const asection *rel_sec,
   10113      1.1  christos 			  const Elf_Internal_Rela *rela)
   10114      1.1  christos {
   10115      1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   10116      1.1  christos 
   10117      1.1  christos   if (rel_sec == htab->reliplt)
   10118      1.1  christos     return reloc_class_ifunc;
   10119      1.1  christos 
   10120      1.1  christos   switch (ELF32_R_TYPE (rela->r_info))
   10121      1.1  christos     {
   10122      1.1  christos     case R_PPC_RELATIVE:
   10123      1.1  christos       return reloc_class_relative;
   10124      1.1  christos     case R_PPC_JMP_SLOT:
   10125      1.1  christos       return reloc_class_plt;
   10126      1.1  christos     case R_PPC_COPY:
   10127      1.1  christos       return reloc_class_copy;
   10128      1.1  christos     default:
   10129      1.1  christos       return reloc_class_normal;
   10130      1.1  christos     }
   10131      1.1  christos }
   10132      1.1  christos 
   10133      1.1  christos /* Finish up the dynamic sections.  */
   10135      1.1  christos 
   10136      1.1  christos static bfd_boolean
   10137      1.1  christos ppc_elf_finish_dynamic_sections (bfd *output_bfd,
   10138      1.1  christos 				 struct bfd_link_info *info)
   10139      1.1  christos {
   10140      1.1  christos   asection *sdyn;
   10141      1.1  christos   asection *splt;
   10142      1.1  christos   struct ppc_elf_link_hash_table *htab;
   10143      1.1  christos   bfd_vma got;
   10144      1.1  christos   bfd *dynobj;
   10145      1.1  christos   bfd_boolean ret = TRUE;
   10146      1.1  christos 
   10147      1.1  christos #ifdef DEBUG
   10148      1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
   10149      1.1  christos #endif
   10150      1.1  christos 
   10151      1.1  christos   htab = ppc_elf_hash_table (info);
   10152      1.1  christos   dynobj = elf_hash_table (info)->dynobj;
   10153      1.1  christos   sdyn = bfd_get_linker_section (dynobj, ".dynamic");
   10154      1.1  christos   if (htab->is_vxworks)
   10155      1.1  christos     splt = bfd_get_linker_section (dynobj, ".plt");
   10156      1.1  christos   else
   10157      1.1  christos     splt = NULL;
   10158      1.1  christos 
   10159      1.1  christos   got = 0;
   10160      1.1  christos   if (htab->elf.hgot != NULL)
   10161      1.1  christos     got = SYM_VAL (htab->elf.hgot);
   10162      1.1  christos 
   10163      1.1  christos   if (htab->elf.dynamic_sections_created)
   10164      1.1  christos     {
   10165      1.1  christos       Elf32_External_Dyn *dyncon, *dynconend;
   10166      1.1  christos 
   10167      1.1  christos       BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
   10168      1.1  christos 
   10169      1.1  christos       dyncon = (Elf32_External_Dyn *) sdyn->contents;
   10170      1.1  christos       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
   10171      1.1  christos       for (; dyncon < dynconend; dyncon++)
   10172      1.1  christos 	{
   10173      1.1  christos 	  Elf_Internal_Dyn dyn;
   10174      1.1  christos 	  asection *s;
   10175      1.1  christos 
   10176      1.1  christos 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
   10177      1.1  christos 
   10178      1.1  christos 	  switch (dyn.d_tag)
   10179      1.1  christos 	    {
   10180      1.1  christos 	    case DT_PLTGOT:
   10181      1.1  christos 	      if (htab->is_vxworks)
   10182      1.1  christos 		s = htab->sgotplt;
   10183      1.1  christos 	      else
   10184      1.1  christos 		s = htab->plt;
   10185      1.1  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   10186      1.1  christos 	      break;
   10187      1.1  christos 
   10188      1.1  christos 	    case DT_PLTRELSZ:
   10189      1.1  christos 	      dyn.d_un.d_val = htab->relplt->size;
   10190      1.1  christos 	      break;
   10191      1.1  christos 
   10192      1.1  christos 	    case DT_JMPREL:
   10193      1.1  christos 	      s = htab->relplt;
   10194      1.1  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   10195      1.1  christos 	      break;
   10196      1.1  christos 
   10197      1.1  christos 	    case DT_PPC_GOT:
   10198      1.1  christos 	      dyn.d_un.d_ptr = got;
   10199      1.1  christos 	      break;
   10200      1.1  christos 
   10201      1.1  christos 	    case DT_RELASZ:
   10202      1.1  christos 	      if (htab->is_vxworks)
   10203      1.1  christos 		{
   10204      1.1  christos 		  if (htab->relplt)
   10205      1.1  christos 		    dyn.d_un.d_ptr -= htab->relplt->size;
   10206      1.1  christos 		  break;
   10207      1.1  christos 		}
   10208      1.1  christos 	      continue;
   10209      1.1  christos 
   10210      1.1  christos 	    default:
   10211      1.1  christos 	      if (htab->is_vxworks
   10212      1.1  christos 		  && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
   10213      1.1  christos 		break;
   10214      1.1  christos 	      continue;
   10215      1.1  christos 	    }
   10216      1.1  christos 
   10217      1.1  christos 	  bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   10218      1.1  christos 	}
   10219      1.1  christos     }
   10220      1.1  christos 
   10221      1.1  christos   if (htab->got != NULL)
   10222      1.1  christos     {
   10223      1.1  christos       if (htab->elf.hgot->root.u.def.section == htab->got
   10224      1.1  christos 	  || htab->elf.hgot->root.u.def.section == htab->sgotplt)
   10225      1.1  christos 	{
   10226      1.1  christos 	  unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
   10227      1.1  christos 
   10228      1.1  christos 	  p += htab->elf.hgot->root.u.def.value;
   10229      1.1  christos 	  if (htab->plt_type == PLT_OLD)
   10230      1.1  christos 	    {
   10231      1.1  christos 	      /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
   10232      1.1  christos 		 so that a function can easily find the address of
   10233      1.1  christos 		 _GLOBAL_OFFSET_TABLE_.  */
   10234      1.1  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
   10235      1.1  christos 			  < htab->elf.hgot->root.u.def.section->size);
   10236      1.1  christos 	      bfd_put_32 (output_bfd, 0x4e800021, p - 4);
   10237      1.1  christos 	    }
   10238      1.1  christos 
   10239      1.1  christos 	  if (sdyn != NULL)
   10240      1.1  christos 	    {
   10241      1.1  christos 	      bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
   10242      1.1  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value
   10243      1.1  christos 			  < htab->elf.hgot->root.u.def.section->size);
   10244      1.1  christos 	      bfd_put_32 (output_bfd, val, p);
   10245      1.1  christos 	    }
   10246      1.1  christos 	}
   10247      1.1  christos       else
   10248      1.1  christos 	{
   10249      1.1  christos 	  info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
   10250      1.1  christos 				  htab->elf.hgot->root.root.string,
   10251      1.1  christos 				  (htab->sgotplt != NULL
   10252      1.1  christos 				   ? htab->sgotplt->name : htab->got->name));
   10253      1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   10254      1.1  christos 	  ret = FALSE;
   10255      1.1  christos 	}
   10256      1.1  christos 
   10257      1.1  christos       elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
   10258      1.1  christos     }
   10259      1.1  christos 
   10260      1.1  christos   /* Fill in the first entry in the VxWorks procedure linkage table.  */
   10261      1.1  christos   if (splt && splt->size > 0)
   10262      1.1  christos     {
   10263      1.1  christos       /* Use the right PLT. */
   10264      1.1  christos       const bfd_vma *plt_entry = (info->shared
   10265      1.1  christos 				  ? ppc_elf_vxworks_pic_plt0_entry
   10266      1.1  christos 				  : ppc_elf_vxworks_plt0_entry);
   10267      1.1  christos 
   10268      1.1  christos       if (!info->shared)
   10269      1.1  christos 	{
   10270      1.1  christos 	  bfd_vma got_value = SYM_VAL (htab->elf.hgot);
   10271      1.1  christos 
   10272      1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
   10273      1.1  christos 		      splt->contents +  0);
   10274      1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
   10275      1.1  christos 		      splt->contents +  4);
   10276      1.1  christos 	}
   10277      1.1  christos       else
   10278      1.1  christos 	{
   10279      1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[0], splt->contents +  0);
   10280      1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1], splt->contents +  4);
   10281      1.1  christos 	}
   10282      1.1  christos       bfd_put_32 (output_bfd, plt_entry[2], splt->contents +  8);
   10283      1.1  christos       bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
   10284      1.1  christos       bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
   10285      1.1  christos       bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
   10286      1.1  christos       bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
   10287      1.1  christos       bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
   10288      1.1  christos 
   10289      1.1  christos       if (! info->shared)
   10290      1.1  christos 	{
   10291      1.1  christos 	  Elf_Internal_Rela rela;
   10292      1.1  christos 	  bfd_byte *loc;
   10293      1.1  christos 
   10294      1.1  christos 	  loc = htab->srelplt2->contents;
   10295      1.1  christos 
   10296      1.1  christos 	  /* Output the @ha relocation for the first instruction.  */
   10297      1.1  christos 	  rela.r_offset = (htab->plt->output_section->vma
   10298      1.1  christos 			   + htab->plt->output_offset
   10299      1.1  christos 			   + 2);
   10300      1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   10301      1.1  christos 	  rela.r_addend = 0;
   10302      1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10303      1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   10304      1.1  christos 
   10305      1.1  christos 	  /* Output the @l relocation for the second instruction.  */
   10306      1.1  christos 	  rela.r_offset = (htab->plt->output_section->vma
   10307      1.1  christos 			   + htab->plt->output_offset
   10308      1.1  christos 			   + 6);
   10309      1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   10310      1.1  christos 	  rela.r_addend = 0;
   10311      1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10312      1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   10313      1.1  christos 
   10314      1.1  christos 	  /* Fix up the remaining relocations.  They may have the wrong
   10315      1.1  christos 	     symbol index for _G_O_T_ or _P_L_T_ depending on the order
   10316      1.1  christos 	     in which symbols were output.  */
   10317      1.1  christos 	  while (loc < htab->srelplt2->contents + htab->srelplt2->size)
   10318      1.1  christos 	    {
   10319      1.1  christos 	      Elf_Internal_Rela rel;
   10320      1.1  christos 
   10321      1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10322      1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   10323      1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10324      1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10325      1.1  christos 
   10326      1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10327      1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   10328      1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10329      1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10330      1.1  christos 
   10331      1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10332      1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
   10333      1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10334      1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10335      1.1  christos 	    }
   10336      1.1  christos 	}
   10337      1.1  christos     }
   10338      1.1  christos 
   10339      1.1  christos   if (htab->glink != NULL
   10340      1.1  christos       && htab->glink->contents != NULL
   10341      1.1  christos       && htab->elf.dynamic_sections_created)
   10342      1.1  christos     {
   10343      1.1  christos       unsigned char *p;
   10344      1.1  christos       unsigned char *endp;
   10345      1.1  christos       bfd_vma res0;
   10346      1.1  christos       unsigned int i;
   10347      1.1  christos 
   10348      1.1  christos       /*
   10349      1.1  christos        * PIC glink code is the following:
   10350      1.1  christos        *
   10351      1.1  christos        * # ith PLT code stub.
   10352      1.1  christos        *   addis 11,30,(plt+(i-1)*4-got)@ha
   10353      1.1  christos        *   lwz 11,(plt+(i-1)*4-got)@l(11)
   10354      1.1  christos        *   mtctr 11
   10355      1.1  christos        *   bctr
   10356      1.1  christos        *
   10357      1.1  christos        * # A table of branches, one for each plt entry.
   10358      1.1  christos        * # The idea is that the plt call stub loads ctr and r11 with these
   10359      1.1  christos        * # addresses, so (r11 - res_0) gives the plt index * 4.
   10360      1.1  christos        * res_0:	b PLTresolve
   10361      1.1  christos        * res_1:	b PLTresolve
   10362      1.1  christos        * .
   10363      1.1  christos        * # Some number of entries towards the end can be nops
   10364      1.1  christos        * res_n_m3: nop
   10365      1.1  christos        * res_n_m2: nop
   10366      1.1  christos        * res_n_m1:
   10367      1.1  christos        *
   10368      1.1  christos        * PLTresolve:
   10369      1.1  christos        *    addis 11,11,(1f-res_0)@ha
   10370      1.1  christos        *    mflr 0
   10371      1.1  christos        *    bcl 20,31,1f
   10372      1.1  christos        * 1: addi 11,11,(1b-res_0)@l
   10373      1.1  christos        *    mflr 12
   10374      1.1  christos        *    mtlr 0
   10375      1.1  christos        *    sub 11,11,12                # r11 = index * 4
   10376      1.1  christos        *    addis 12,12,(got+4-1b)@ha
   10377      1.1  christos        *    lwz 0,(got+4-1b)@l(12)      # got[1] address of dl_runtime_resolve
   10378      1.1  christos        *    lwz 12,(got+8-1b)@l(12)     # got[2] contains the map address
   10379      1.1  christos        *    mtctr 0
   10380      1.1  christos        *    add 0,11,11
   10381      1.1  christos        *    add 11,0,11                 # r11 = index * 12 = reloc offset.
   10382      1.1  christos        *    bctr
   10383      1.1  christos        */
   10384      1.1  christos       static const unsigned int pic_plt_resolve[] =
   10385      1.1  christos 	{
   10386      1.1  christos 	  ADDIS_11_11,
   10387      1.1  christos 	  MFLR_0,
   10388      1.1  christos 	  BCL_20_31,
   10389      1.1  christos 	  ADDI_11_11,
   10390      1.1  christos 	  MFLR_12,
   10391      1.1  christos 	  MTLR_0,
   10392      1.1  christos 	  SUB_11_11_12,
   10393      1.1  christos 	  ADDIS_12_12,
   10394      1.1  christos 	  LWZ_0_12,
   10395      1.1  christos 	  LWZ_12_12,
   10396      1.1  christos 	  MTCTR_0,
   10397      1.1  christos 	  ADD_0_11_11,
   10398      1.1  christos 	  ADD_11_0_11,
   10399      1.1  christos 	  BCTR,
   10400      1.1  christos 	  NOP,
   10401      1.1  christos 	  NOP
   10402      1.1  christos 	};
   10403      1.1  christos 
   10404      1.1  christos       /*
   10405      1.1  christos        * Non-PIC glink code is a little simpler.
   10406      1.1  christos        *
   10407      1.1  christos        * # ith PLT code stub.
   10408      1.1  christos        *   lis 11,(plt+(i-1)*4)@ha
   10409      1.1  christos        *   lwz 11,(plt+(i-1)*4)@l(11)
   10410      1.1  christos        *   mtctr 11
   10411      1.1  christos        *   bctr
   10412      1.1  christos        *
   10413      1.1  christos        * The branch table is the same, then comes
   10414      1.1  christos        *
   10415      1.1  christos        * PLTresolve:
   10416      1.1  christos        *    lis 12,(got+4)@ha
   10417      1.1  christos        *    addis 11,11,(-res_0)@ha
   10418      1.1  christos        *    lwz 0,(got+4)@l(12)         # got[1] address of dl_runtime_resolve
   10419      1.1  christos        *    addi 11,11,(-res_0)@l       # r11 = index * 4
   10420      1.1  christos        *    mtctr 0
   10421      1.1  christos        *    add 0,11,11
   10422      1.1  christos        *    lwz 12,(got+8)@l(12)        # got[2] contains the map address
   10423      1.1  christos        *    add 11,0,11                 # r11 = index * 12 = reloc offset.
   10424      1.1  christos        *    bctr
   10425      1.1  christos        */
   10426      1.1  christos       static const unsigned int plt_resolve[] =
   10427      1.1  christos 	{
   10428      1.1  christos 	  LIS_12,
   10429      1.1  christos 	  ADDIS_11_11,
   10430      1.1  christos 	  LWZ_0_12,
   10431      1.1  christos 	  ADDI_11_11,
   10432      1.1  christos 	  MTCTR_0,
   10433      1.1  christos 	  ADD_0_11_11,
   10434      1.1  christos 	  LWZ_12_12,
   10435      1.1  christos 	  ADD_11_0_11,
   10436      1.1  christos 	  BCTR,
   10437      1.1  christos 	  NOP,
   10438      1.3  christos 	  NOP,
   10439      1.1  christos 	  NOP,
   10440      1.1  christos 	  NOP,
   10441      1.1  christos 	  NOP,
   10442      1.1  christos 	  NOP,
   10443      1.1  christos 	  NOP
   10444      1.1  christos 	};
   10445      1.1  christos 
   10446      1.1  christos       if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
   10447      1.1  christos 	abort ();
   10448      1.1  christos       if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
   10449      1.1  christos 	abort ();
   10450      1.1  christos 
   10451      1.1  christos       /* Build the branch table, one for each plt entry (less one),
   10452      1.1  christos 	 and perhaps some padding.  */
   10453      1.3  christos       p = htab->glink->contents;
   10454      1.3  christos       p += htab->glink_pltresolve;
   10455      1.3  christos       endp = htab->glink->contents;
   10456      1.3  christos       endp += htab->glink->size - GLINK_PLTRESOLVE;
   10457      1.3  christos       while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
   10458      1.3  christos 	{
   10459      1.3  christos 	  bfd_put_32 (output_bfd, B + endp - p, p);
   10460      1.3  christos 	  p += 4;
   10461      1.3  christos 	}
   10462      1.3  christos       while (p < endp)
   10463      1.3  christos 	{
   10464      1.3  christos 	  bfd_put_32 (output_bfd, NOP, p);
   10465      1.3  christos 	  p += 4;
   10466      1.3  christos 	}
   10467      1.3  christos 
   10468      1.3  christos       res0 = (htab->glink_pltresolve
   10469      1.3  christos 	      + htab->glink->output_section->vma
   10470      1.3  christos 	      + htab->glink->output_offset);
   10471      1.3  christos 
   10472      1.3  christos       if (htab->params->ppc476_workaround)
   10473      1.3  christos 	{
   10474      1.3  christos 	  /* Ensure that a call stub at the end of a page doesn't
   10475      1.3  christos 	     result in prefetch over the end of the page into the
   10476      1.3  christos 	     glink branch table.  */
   10477      1.3  christos 	  bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   10478      1.3  christos 	  bfd_vma page_addr;
   10479      1.3  christos 	  bfd_vma glink_start = (htab->glink->output_section->vma
   10480      1.3  christos 				 + htab->glink->output_offset);
   10481      1.3  christos 
   10482      1.3  christos 	  for (page_addr = res0 & -pagesize;
   10483      1.3  christos 	       page_addr > glink_start;
   10484      1.3  christos 	       page_addr -= pagesize)
   10485      1.3  christos 	    {
   10486      1.1  christos 	      /* We have a plt call stub that may need fixing.  */
   10487      1.1  christos 	      bfd_byte *loc;
   10488      1.1  christos 	      unsigned int insn;
   10489      1.1  christos 
   10490      1.1  christos 	      loc = htab->glink->contents + page_addr - 4 - glink_start;
   10491      1.1  christos 	      insn = bfd_get_32 (output_bfd, loc);
   10492      1.1  christos 	      if (insn == BCTR)
   10493      1.3  christos 		{
   10494      1.3  christos 		  /* By alignment, we know that there must be at least
   10495      1.3  christos 		     one other call stub before this one.  */
   10496      1.3  christos 		  insn = bfd_get_32 (output_bfd, loc - 16);
   10497      1.3  christos 		  if (insn == BCTR)
   10498      1.1  christos 		    bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
   10499      1.1  christos 		  else
   10500      1.1  christos 		    bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
   10501      1.1  christos 		}
   10502      1.1  christos 	    }
   10503      1.1  christos 	}
   10504      1.1  christos 
   10505      1.1  christos       /* Last comes the PLTresolve stub.  */
   10506      1.1  christos       if (info->shared)
   10507      1.1  christos 	{
   10508      1.1  christos 	  bfd_vma bcl;
   10509      1.1  christos 
   10510      1.1  christos 	  for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
   10511      1.1  christos 	    {
   10512      1.1  christos 	      unsigned int insn = pic_plt_resolve[i];
   10513      1.1  christos 
   10514      1.1  christos 	      if (htab->params->ppc476_workaround && insn == NOP)
   10515      1.1  christos 		insn = BA + 0;
   10516      1.1  christos 	      bfd_put_32 (output_bfd, insn, p);
   10517      1.1  christos 	      p += 4;
   10518      1.1  christos 	    }
   10519      1.1  christos 	  p -= 4 * ARRAY_SIZE (pic_plt_resolve);
   10520      1.1  christos 
   10521      1.1  christos 	  bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
   10522      1.1  christos 		 + htab->glink->output_section->vma
   10523      1.1  christos 		 + htab->glink->output_offset);
   10524      1.1  christos 
   10525      1.1  christos 	  bfd_put_32 (output_bfd,
   10526      1.1  christos 		      ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
   10527      1.1  christos 	  bfd_put_32 (output_bfd,
   10528      1.1  christos 		      ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
   10529      1.1  christos 	  bfd_put_32 (output_bfd,
   10530      1.1  christos 		      ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
   10531      1.3  christos 	  if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
   10532      1.3  christos 	    {
   10533      1.3  christos 	      bfd_put_32 (output_bfd,
   10534      1.3  christos 			  LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
   10535      1.3  christos 	      bfd_put_32 (output_bfd,
   10536      1.1  christos 			  LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
   10537      1.1  christos 	    }
   10538      1.1  christos 	  else
   10539      1.1  christos 	    {
   10540      1.1  christos 	      bfd_put_32 (output_bfd,
   10541      1.1  christos 			  LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
   10542      1.1  christos 	      bfd_put_32 (output_bfd,
   10543      1.1  christos 			  LWZ_12_12 + 4, p + 9*4);
   10544      1.1  christos 	    }
   10545      1.1  christos 	}
   10546      1.1  christos       else
   10547      1.1  christos 	{
   10548      1.1  christos 	  for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
   10549      1.1  christos 	    {
   10550      1.1  christos 	      unsigned int insn = plt_resolve[i];
   10551      1.1  christos 
   10552      1.1  christos 	      if (htab->params->ppc476_workaround && insn == NOP)
   10553      1.1  christos 		insn = BA + 0;
   10554      1.1  christos 	      bfd_put_32 (output_bfd, insn, p);
   10555      1.1  christos 	      p += 4;
   10556      1.1  christos 	    }
   10557      1.1  christos 	  p -= 4 * ARRAY_SIZE (plt_resolve);
   10558      1.1  christos 
   10559      1.1  christos 	  bfd_put_32 (output_bfd,
   10560      1.1  christos 		      LIS_12 + PPC_HA (got + 4), p + 0*4);
   10561      1.1  christos 	  bfd_put_32 (output_bfd,
   10562      1.1  christos 		      ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
   10563      1.1  christos 	  bfd_put_32 (output_bfd,
   10564      1.1  christos 		      ADDI_11_11 + PPC_LO (-res0), p + 3*4);
   10565      1.1  christos 	  if (PPC_HA (got + 4) == PPC_HA (got + 8))
   10566      1.1  christos 	    {
   10567      1.1  christos 	      bfd_put_32 (output_bfd,
   10568      1.1  christos 			  LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
   10569      1.1  christos 	      bfd_put_32 (output_bfd,
   10570      1.1  christos 			  LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
   10571      1.1  christos 	    }
   10572      1.1  christos 	  else
   10573      1.1  christos 	    {
   10574      1.1  christos 	      bfd_put_32 (output_bfd,
   10575      1.1  christos 			  LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
   10576      1.1  christos 	      bfd_put_32 (output_bfd,
   10577      1.1  christos 			  LWZ_12_12 + 4, p + 6*4);
   10578      1.1  christos 	    }
   10579      1.1  christos 	}
   10580      1.1  christos     }
   10581      1.1  christos 
   10582      1.1  christos   if (htab->glink_eh_frame != NULL
   10583      1.1  christos       && htab->glink_eh_frame->contents != NULL)
   10584      1.1  christos     {
   10585      1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   10586      1.1  christos       bfd_vma val;
   10587      1.1  christos 
   10588      1.1  christos       p += sizeof (glink_eh_frame_cie);
   10589      1.1  christos       /* FDE length.  */
   10590      1.1  christos       p += 4;
   10591      1.1  christos       /* CIE pointer.  */
   10592      1.3  christos       p += 4;
   10593      1.1  christos       /* Offset to .glink.  */
   10594      1.3  christos       val = (htab->glink->output_section->vma
   10595      1.1  christos 	     + htab->glink->output_offset);
   10596      1.1  christos       val -= (htab->glink_eh_frame->output_section->vma
   10597      1.1  christos 	      + htab->glink_eh_frame->output_offset);
   10598      1.1  christos       val -= p - htab->glink_eh_frame->contents;
   10599      1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   10600      1.1  christos 
   10601      1.3  christos       if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
   10602      1.1  christos 	  && !_bfd_elf_write_section_eh_frame (output_bfd, info,
   10603      1.1  christos 					       htab->glink_eh_frame,
   10604      1.3  christos 					       htab->glink_eh_frame->contents))
   10605      1.1  christos 	return FALSE;
   10606      1.1  christos     }
   10607      1.1  christos 
   10608      1.1  christos   return ret;
   10609      1.1  christos }
   10610      1.1  christos 
   10611      1.1  christos #define TARGET_LITTLE_SYM	powerpc_elf32_le_vec
   10613      1.1  christos #define TARGET_LITTLE_NAME	"elf32-powerpcle"
   10614      1.1  christos #define TARGET_BIG_SYM		powerpc_elf32_vec
   10615      1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc"
   10616      1.1  christos #define ELF_ARCH		bfd_arch_powerpc
   10617      1.1  christos #define ELF_TARGET_ID		PPC32_ELF_DATA
   10618      1.1  christos #define ELF_MACHINE_CODE	EM_PPC
   10619      1.1  christos #ifdef __QNXTARGET__
   10620      1.1  christos #define ELF_MAXPAGESIZE		0x1000
   10621      1.3  christos #define ELF_COMMONPAGESIZE	0x1000
   10622      1.1  christos #else
   10623      1.1  christos #define ELF_MAXPAGESIZE		0x10000
   10624      1.1  christos #define ELF_COMMONPAGESIZE	0x10000
   10625      1.1  christos #endif
   10626      1.1  christos #define ELF_MINPAGESIZE		0x1000
   10627      1.1  christos #define elf_info_to_howto	ppc_elf_info_to_howto
   10628      1.1  christos 
   10629      1.1  christos #ifdef  EM_CYGNUS_POWERPC
   10630      1.1  christos #define ELF_MACHINE_ALT1	EM_CYGNUS_POWERPC
   10631      1.1  christos #endif
   10632      1.1  christos 
   10633      1.1  christos #ifdef EM_PPC_OLD
   10634      1.1  christos #define ELF_MACHINE_ALT2	EM_PPC_OLD
   10635      1.1  christos #endif
   10636      1.1  christos 
   10637      1.1  christos #define elf_backend_plt_not_loaded	1
   10638      1.1  christos #define elf_backend_can_gc_sections	1
   10639      1.1  christos #define elf_backend_can_refcount	1
   10640      1.1  christos #define elf_backend_rela_normal		1
   10641      1.1  christos #define elf_backend_caches_rawsize	1
   10642      1.1  christos 
   10643      1.1  christos #define bfd_elf32_mkobject			ppc_elf_mkobject
   10644      1.1  christos #define bfd_elf32_bfd_merge_private_bfd_data	ppc_elf_merge_private_bfd_data
   10645      1.1  christos #define bfd_elf32_bfd_relax_section		ppc_elf_relax_section
   10646      1.1  christos #define bfd_elf32_bfd_reloc_type_lookup		ppc_elf_reloc_type_lookup
   10647      1.1  christos #define bfd_elf32_bfd_reloc_name_lookup		ppc_elf_reloc_name_lookup
   10648      1.1  christos #define bfd_elf32_bfd_set_private_flags		ppc_elf_set_private_flags
   10649      1.1  christos #define bfd_elf32_bfd_link_hash_table_create	ppc_elf_link_hash_table_create
   10650      1.1  christos #define bfd_elf32_get_synthetic_symtab		ppc_elf_get_synthetic_symtab
   10651      1.1  christos 
   10652      1.1  christos #define elf_backend_object_p			ppc_elf_object_p
   10653      1.1  christos #define elf_backend_gc_mark_hook		ppc_elf_gc_mark_hook
   10654      1.1  christos #define elf_backend_gc_sweep_hook		ppc_elf_gc_sweep_hook
   10655      1.1  christos #define elf_backend_section_from_shdr		ppc_elf_section_from_shdr
   10656      1.1  christos #define elf_backend_relocate_section		ppc_elf_relocate_section
   10657      1.1  christos #define elf_backend_create_dynamic_sections	ppc_elf_create_dynamic_sections
   10658      1.1  christos #define elf_backend_check_relocs		ppc_elf_check_relocs
   10659      1.1  christos #define elf_backend_copy_indirect_symbol	ppc_elf_copy_indirect_symbol
   10660      1.1  christos #define elf_backend_adjust_dynamic_symbol	ppc_elf_adjust_dynamic_symbol
   10661      1.1  christos #define elf_backend_add_symbol_hook		ppc_elf_add_symbol_hook
   10662      1.1  christos #define elf_backend_size_dynamic_sections	ppc_elf_size_dynamic_sections
   10663      1.1  christos #define elf_backend_hash_symbol			ppc_elf_hash_symbol
   10664      1.1  christos #define elf_backend_finish_dynamic_symbol	ppc_elf_finish_dynamic_symbol
   10665      1.1  christos #define elf_backend_finish_dynamic_sections	ppc_elf_finish_dynamic_sections
   10666      1.1  christos #define elf_backend_fake_sections		ppc_elf_fake_sections
   10667      1.1  christos #define elf_backend_additional_program_headers	ppc_elf_additional_program_headers
   10668      1.1  christos #define elf_backend_modify_segment_map     	ppc_elf_modify_segment_map
   10669      1.1  christos #define elf_backend_grok_prstatus		ppc_elf_grok_prstatus
   10670      1.1  christos #define elf_backend_grok_psinfo			ppc_elf_grok_psinfo
   10671      1.3  christos #define elf_backend_write_core_note		ppc_elf_write_core_note
   10672      1.1  christos #define elf_backend_reloc_type_class		ppc_elf_reloc_type_class
   10673      1.1  christos #define elf_backend_begin_write_processing	ppc_elf_begin_write_processing
   10674      1.1  christos #define elf_backend_final_write_processing	ppc_elf_final_write_processing
   10675      1.1  christos #define elf_backend_write_section		ppc_elf_write_section
   10676      1.1  christos #define elf_backend_get_sec_type_attr		ppc_elf_get_sec_type_attr
   10677      1.1  christos #define elf_backend_plt_sym_val			ppc_elf_plt_sym_val
   10678      1.1  christos #define elf_backend_action_discarded		ppc_elf_action_discarded
   10679      1.1  christos #define elf_backend_init_index_section		_bfd_elf_init_1_index_section
   10680      1.1  christos #define elf_backend_lookup_section_flags_hook	ppc_elf_lookup_section_flags
   10681      1.1  christos #define elf_backend_section_processing		ppc_elf_section_processing
   10682      1.1  christos 
   10683      1.1  christos #include "elf32-target.h"
   10684      1.1  christos 
   10685      1.1  christos /* FreeBSD Target */
   10686      1.1  christos 
   10687      1.1  christos #undef  TARGET_LITTLE_SYM
   10688      1.1  christos #undef  TARGET_LITTLE_NAME
   10689      1.3  christos 
   10690      1.1  christos #undef  TARGET_BIG_SYM
   10691      1.1  christos #define TARGET_BIG_SYM  powerpc_elf32_fbsd_vec
   10692      1.1  christos #undef  TARGET_BIG_NAME
   10693      1.1  christos #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
   10694      1.1  christos 
   10695      1.1  christos #undef  ELF_OSABI
   10696      1.1  christos #define ELF_OSABI	ELFOSABI_FREEBSD
   10697      1.1  christos 
   10698      1.1  christos #undef  elf32_bed
   10699      1.1  christos #define elf32_bed	elf32_powerpc_fbsd_bed
   10700      1.1  christos 
   10701      1.1  christos #include "elf32-target.h"
   10702      1.1  christos 
   10703      1.1  christos /* VxWorks Target */
   10704      1.1  christos 
   10705      1.1  christos #undef TARGET_LITTLE_SYM
   10706      1.1  christos #undef TARGET_LITTLE_NAME
   10707      1.1  christos 
   10708      1.1  christos #undef TARGET_BIG_SYM
   10709      1.1  christos #define TARGET_BIG_SYM		powerpc_elf32_vxworks_vec
   10710      1.1  christos #undef TARGET_BIG_NAME
   10711      1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc-vxworks"
   10712      1.1  christos 
   10713      1.1  christos #undef  ELF_OSABI
   10714      1.1  christos 
   10715      1.1  christos /* VxWorks uses the elf default section flags for .plt.  */
   10716      1.1  christos static const struct bfd_elf_special_section *
   10717      1.1  christos ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
   10718      1.1  christos {
   10719      1.1  christos   if (sec->name == NULL)
   10720      1.1  christos     return NULL;
   10721      1.1  christos 
   10722      1.1  christos   if (strcmp (sec->name, ".plt") == 0)
   10723      1.1  christos     return _bfd_elf_get_sec_type_attr (abfd, sec);
   10724      1.1  christos 
   10725      1.1  christos   return ppc_elf_get_sec_type_attr (abfd, sec);
   10726      1.1  christos }
   10727      1.1  christos 
   10728      1.1  christos /* Like ppc_elf_link_hash_table_create, but overrides
   10729      1.1  christos    appropriately for VxWorks.  */
   10730      1.1  christos static struct bfd_link_hash_table *
   10731      1.1  christos ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
   10732      1.1  christos {
   10733      1.1  christos   struct bfd_link_hash_table *ret;
   10734      1.1  christos 
   10735      1.1  christos   ret = ppc_elf_link_hash_table_create (abfd);
   10736      1.1  christos   if (ret)
   10737      1.1  christos     {
   10738      1.1  christos       struct ppc_elf_link_hash_table *htab
   10739      1.1  christos         = (struct ppc_elf_link_hash_table *)ret;
   10740      1.1  christos       htab->is_vxworks = 1;
   10741      1.1  christos       htab->plt_type = PLT_VXWORKS;
   10742      1.1  christos       htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
   10743      1.1  christos       htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
   10744      1.1  christos       htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
   10745      1.1  christos     }
   10746      1.1  christos   return ret;
   10747      1.1  christos }
   10748      1.1  christos 
   10749      1.1  christos /* Tweak magic VxWorks symbols as they are loaded.  */
   10750      1.1  christos static bfd_boolean
   10751      1.1  christos ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
   10752      1.1  christos 				 struct bfd_link_info *info,
   10753      1.1  christos 				 Elf_Internal_Sym *sym,
   10754      1.1  christos 				 const char **namep ATTRIBUTE_UNUSED,
   10755      1.1  christos 				 flagword *flagsp ATTRIBUTE_UNUSED,
   10756      1.1  christos 				 asection **secp,
   10757      1.1  christos 				 bfd_vma *valp)
   10758      1.1  christos {
   10759      1.1  christos   if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
   10760      1.1  christos 				   valp))
   10761      1.1  christos     return FALSE;
   10762      1.1  christos 
   10763      1.1  christos   return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
   10764      1.1  christos }
   10765      1.1  christos 
   10766      1.1  christos static void
   10767      1.1  christos ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
   10768      1.1  christos {
   10769      1.1  christos   ppc_elf_final_write_processing(abfd, linker);
   10770      1.1  christos   elf_vxworks_final_write_processing(abfd, linker);
   10771      1.1  christos }
   10772      1.1  christos 
   10773      1.1  christos /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
   10774      1.1  christos    define it.  */
   10775      1.1  christos #undef elf_backend_want_plt_sym
   10776      1.1  christos #define elf_backend_want_plt_sym		1
   10777      1.1  christos #undef elf_backend_want_got_plt
   10778      1.1  christos #define elf_backend_want_got_plt		1
   10779      1.1  christos #undef elf_backend_got_symbol_offset
   10780      1.1  christos #define elf_backend_got_symbol_offset		0
   10781      1.1  christos #undef elf_backend_plt_not_loaded
   10782      1.1  christos #define elf_backend_plt_not_loaded		0
   10783      1.1  christos #undef elf_backend_plt_readonly
   10784      1.1  christos #define elf_backend_plt_readonly		1
   10785      1.1  christos #undef elf_backend_got_header_size
   10786      1.1  christos #define elf_backend_got_header_size		12
   10787      1.1  christos 
   10788      1.1  christos #undef bfd_elf32_get_synthetic_symtab
   10789      1.1  christos 
   10790      1.1  christos #undef bfd_elf32_bfd_link_hash_table_create
   10791      1.1  christos #define bfd_elf32_bfd_link_hash_table_create \
   10792      1.1  christos   ppc_elf_vxworks_link_hash_table_create
   10793      1.1  christos #undef elf_backend_add_symbol_hook
   10794                    #define elf_backend_add_symbol_hook \
   10795                      ppc_elf_vxworks_add_symbol_hook
   10796                    #undef elf_backend_link_output_symbol_hook
   10797                    #define elf_backend_link_output_symbol_hook \
   10798                      elf_vxworks_link_output_symbol_hook
   10799                    #undef elf_backend_final_write_processing
   10800                    #define elf_backend_final_write_processing \
   10801                      ppc_elf_vxworks_final_write_processing
   10802                    #undef elf_backend_get_sec_type_attr
   10803                    #define elf_backend_get_sec_type_attr \
   10804                      ppc_elf_vxworks_get_sec_type_attr
   10805                    #undef elf_backend_emit_relocs
   10806                    #define elf_backend_emit_relocs \
   10807                      elf_vxworks_emit_relocs
   10808                    
   10809                    #undef elf32_bed
   10810                    #define elf32_bed				ppc_elf_vxworks_bed
   10811                    #undef elf_backend_post_process_headers
   10812                    
   10813                    #include "elf32-target.h"
   10814