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elf32-ppc.c revision 1.6
      1  1.1  christos /* PowerPC-specific support for 32-bit ELF
      2  1.6  christos    Copyright (C) 1994-2016 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 
     39  1.1  christos typedef enum split16_format_type
     40  1.1  christos {
     41  1.1  christos   split16a_type = 0,
     42  1.1  christos   split16d_type
     43  1.1  christos }
     44  1.1  christos split16_format_type;
     45  1.1  christos 
     46  1.1  christos /* RELA relocations are used here.  */
     47  1.1  christos 
     48  1.1  christos static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
     49  1.1  christos   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
     50  1.1  christos static bfd_reloc_status_type ppc_elf_unhandled_reloc
     51  1.1  christos   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
     52  1.1  christos 
     53  1.1  christos /* Branch prediction bit for branch taken relocs.  */
     54  1.1  christos #define BRANCH_PREDICT_BIT 0x200000
     55  1.1  christos /* Mask to set RA in memory instructions.  */
     56  1.1  christos #define RA_REGISTER_MASK 0x001f0000
     57  1.1  christos /* Value to shift register by to insert RA.  */
     58  1.1  christos #define RA_REGISTER_SHIFT 16
     59  1.1  christos 
     60  1.1  christos /* The name of the dynamic interpreter.  This is put in the .interp
     61  1.1  christos    section.  */
     62  1.1  christos #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
     63  1.1  christos 
     64  1.1  christos /* For old-style PLT.  */
     65  1.1  christos /* The number of single-slot PLT entries (the rest use two slots).  */
     66  1.1  christos #define PLT_NUM_SINGLE_ENTRIES 8192
     67  1.1  christos 
     68  1.1  christos /* For new-style .glink and .plt.  */
     69  1.1  christos #define GLINK_PLTRESOLVE 16*4
     70  1.1  christos #define GLINK_ENTRY_SIZE 4*4
     71  1.1  christos #define TLS_GET_ADDR_GLINK_SIZE 12*4
     72  1.1  christos 
     73  1.1  christos /* VxWorks uses its own plt layout, filled in by the static linker.  */
     74  1.1  christos 
     75  1.1  christos /* The standard VxWorks PLT entry.  */
     76  1.1  christos #define VXWORKS_PLT_ENTRY_SIZE 32
     77  1.1  christos static const bfd_vma ppc_elf_vxworks_plt_entry
     78  1.1  christos     [VXWORKS_PLT_ENTRY_SIZE / 4] =
     79  1.1  christos   {
     80  1.1  christos     0x3d800000, /* lis     r12,0                 */
     81  1.1  christos     0x818c0000, /* lwz     r12,0(r12)            */
     82  1.1  christos     0x7d8903a6, /* mtctr   r12                   */
     83  1.1  christos     0x4e800420, /* bctr                          */
     84  1.1  christos     0x39600000, /* li      r11,0                 */
     85  1.1  christos     0x48000000, /* b       14 <.PLT0resolve+0x4> */
     86  1.1  christos     0x60000000, /* nop                           */
     87  1.1  christos     0x60000000, /* nop                           */
     88  1.1  christos   };
     89  1.1  christos static const bfd_vma ppc_elf_vxworks_pic_plt_entry
     90  1.1  christos     [VXWORKS_PLT_ENTRY_SIZE / 4] =
     91  1.1  christos   {
     92  1.1  christos     0x3d9e0000, /* addis r12,r30,0 */
     93  1.1  christos     0x818c0000, /* lwz	 r12,0(r12) */
     94  1.1  christos     0x7d8903a6, /* mtctr r12 */
     95  1.1  christos     0x4e800420, /* bctr */
     96  1.1  christos     0x39600000, /* li	 r11,0 */
     97  1.1  christos     0x48000000, /* b	 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
     98  1.1  christos     0x60000000, /* nop */
     99  1.1  christos     0x60000000, /* nop */
    100  1.1  christos   };
    101  1.1  christos 
    102  1.1  christos /* The initial VxWorks PLT entry.  */
    103  1.1  christos #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
    104  1.1  christos static const bfd_vma ppc_elf_vxworks_plt0_entry
    105  1.1  christos     [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
    106  1.1  christos   {
    107  1.1  christos     0x3d800000, /* lis     r12,0        */
    108  1.1  christos     0x398c0000, /* addi    r12,r12,0    */
    109  1.1  christos     0x800c0008, /* lwz     r0,8(r12)    */
    110  1.1  christos     0x7c0903a6, /* mtctr   r0           */
    111  1.1  christos     0x818c0004, /* lwz     r12,4(r12)   */
    112  1.1  christos     0x4e800420, /* bctr                 */
    113  1.1  christos     0x60000000, /* nop                  */
    114  1.1  christos     0x60000000, /* nop                  */
    115  1.1  christos   };
    116  1.1  christos static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
    117  1.1  christos     [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
    118  1.1  christos   {
    119  1.1  christos     0x819e0008, /* lwz	 r12,8(r30) */
    120  1.1  christos     0x7d8903a6, /* mtctr r12        */
    121  1.1  christos     0x819e0004, /* lwz	 r12,4(r30) */
    122  1.1  christos     0x4e800420, /* bctr             */
    123  1.1  christos     0x60000000, /* nop              */
    124  1.1  christos     0x60000000, /* nop              */
    125  1.1  christos     0x60000000, /* nop              */
    126  1.1  christos     0x60000000, /* nop              */
    127  1.1  christos   };
    128  1.1  christos 
    129  1.1  christos /* For executables, we have some additional relocations in
    130  1.1  christos    .rela.plt.unloaded, for the kernel loader.  */
    131  1.1  christos 
    132  1.1  christos /* The number of non-JMP_SLOT relocations per PLT0 slot. */
    133  1.1  christos #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
    134  1.1  christos /* The number of relocations in the PLTResolve slot. */
    135  1.1  christos #define VXWORKS_PLTRESOLVE_RELOCS 2
    136  1.1  christos /* The number of relocations in the PLTResolve slot when when creating
    137  1.1  christos    a shared library. */
    138  1.1  christos #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
    139  1.1  christos 
    140  1.1  christos /* Some instructions.  */
    141  1.1  christos #define ADDIS_11_11	0x3d6b0000
    142  1.1  christos #define ADDIS_11_30	0x3d7e0000
    143  1.1  christos #define ADDIS_12_12	0x3d8c0000
    144  1.1  christos #define ADDI_11_11	0x396b0000
    145  1.1  christos #define ADD_0_11_11	0x7c0b5a14
    146  1.1  christos #define ADD_3_12_2	0x7c6c1214
    147  1.1  christos #define ADD_11_0_11	0x7d605a14
    148  1.1  christos #define B		0x48000000
    149  1.3  christos #define BA		0x48000002
    150  1.1  christos #define BCL_20_31	0x429f0005
    151  1.1  christos #define BCTR		0x4e800420
    152  1.1  christos #define BEQLR		0x4d820020
    153  1.1  christos #define CMPWI_11_0	0x2c0b0000
    154  1.1  christos #define LIS_11		0x3d600000
    155  1.1  christos #define LIS_12		0x3d800000
    156  1.1  christos #define LWZU_0_12	0x840c0000
    157  1.1  christos #define LWZ_0_12	0x800c0000
    158  1.1  christos #define LWZ_11_3	0x81630000
    159  1.1  christos #define LWZ_11_11	0x816b0000
    160  1.1  christos #define LWZ_11_30	0x817e0000
    161  1.1  christos #define LWZ_12_3	0x81830000
    162  1.1  christos #define LWZ_12_12	0x818c0000
    163  1.1  christos #define MR_0_3		0x7c601b78
    164  1.1  christos #define MR_3_0		0x7c030378
    165  1.1  christos #define MFLR_0		0x7c0802a6
    166  1.1  christos #define MFLR_12		0x7d8802a6
    167  1.1  christos #define MTCTR_0		0x7c0903a6
    168  1.1  christos #define MTCTR_11	0x7d6903a6
    169  1.1  christos #define MTLR_0		0x7c0803a6
    170  1.1  christos #define NOP		0x60000000
    171  1.1  christos #define SUB_11_11_12	0x7d6c5850
    172  1.1  christos 
    173  1.1  christos /* Offset of tp and dtp pointers from start of TLS block.  */
    174  1.1  christos #define TP_OFFSET	0x7000
    175  1.1  christos #define DTP_OFFSET	0x8000
    176  1.1  christos 
    177  1.1  christos /* The value of a defined global symbol.  */
    178  1.1  christos #define SYM_VAL(SYM) \
    179  1.1  christos   ((SYM)->root.u.def.section->output_section->vma	\
    180  1.1  christos    + (SYM)->root.u.def.section->output_offset		\
    181  1.1  christos    + (SYM)->root.u.def.value)
    182  1.1  christos 
    183  1.1  christos static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
    185  1.1  christos 
    186  1.1  christos static reloc_howto_type ppc_elf_howto_raw[] = {
    187  1.1  christos   /* This reloc does nothing.  */
    188  1.1  christos   HOWTO (R_PPC_NONE,		/* type */
    189  1.5  christos 	 0,			/* rightshift */
    190  1.5  christos 	 3,			/* size (0 = byte, 1 = short, 2 = long) */
    191  1.1  christos 	 0,			/* bitsize */
    192  1.1  christos 	 FALSE,			/* pc_relative */
    193  1.3  christos 	 0,			/* bitpos */
    194  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    195  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    196  1.1  christos 	 "R_PPC_NONE",		/* name */
    197  1.1  christos 	 FALSE,			/* partial_inplace */
    198  1.1  christos 	 0,			/* src_mask */
    199  1.1  christos 	 0,			/* dst_mask */
    200  1.1  christos 	 FALSE),		/* pcrel_offset */
    201  1.1  christos 
    202  1.1  christos   /* A standard 32 bit relocation.  */
    203  1.1  christos   HOWTO (R_PPC_ADDR32,		/* type */
    204  1.1  christos 	 0,			/* rightshift */
    205  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    206  1.1  christos 	 32,			/* bitsize */
    207  1.1  christos 	 FALSE,			/* pc_relative */
    208  1.3  christos 	 0,			/* bitpos */
    209  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    210  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    211  1.1  christos 	 "R_PPC_ADDR32",	/* name */
    212  1.1  christos 	 FALSE,			/* partial_inplace */
    213  1.1  christos 	 0,			/* src_mask */
    214  1.1  christos 	 0xffffffff,		/* dst_mask */
    215  1.1  christos 	 FALSE),		/* pcrel_offset */
    216  1.1  christos 
    217  1.1  christos   /* An absolute 26 bit branch; the lower two bits must be zero.
    218  1.1  christos      FIXME: we don't check that, we just clear them.  */
    219  1.1  christos   HOWTO (R_PPC_ADDR24,		/* type */
    220  1.1  christos 	 0,			/* rightshift */
    221  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    222  1.1  christos 	 26,			/* bitsize */
    223  1.1  christos 	 FALSE,			/* pc_relative */
    224  1.3  christos 	 0,			/* bitpos */
    225  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    226  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    227  1.1  christos 	 "R_PPC_ADDR24",	/* name */
    228  1.1  christos 	 FALSE,			/* partial_inplace */
    229  1.1  christos 	 0,			/* src_mask */
    230  1.1  christos 	 0x3fffffc,		/* dst_mask */
    231  1.1  christos 	 FALSE),		/* pcrel_offset */
    232  1.1  christos 
    233  1.1  christos   /* A standard 16 bit relocation.  */
    234  1.1  christos   HOWTO (R_PPC_ADDR16,		/* type */
    235  1.1  christos 	 0,			/* rightshift */
    236  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    237  1.1  christos 	 16,			/* bitsize */
    238  1.1  christos 	 FALSE,			/* pc_relative */
    239  1.1  christos 	 0,			/* bitpos */
    240  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    241  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    242  1.1  christos 	 "R_PPC_ADDR16",	/* name */
    243  1.1  christos 	 FALSE,			/* partial_inplace */
    244  1.1  christos 	 0,			/* src_mask */
    245  1.1  christos 	 0xffff,		/* dst_mask */
    246  1.1  christos 	 FALSE),		/* pcrel_offset */
    247  1.1  christos 
    248  1.1  christos   /* A 16 bit relocation without overflow.  */
    249  1.1  christos   HOWTO (R_PPC_ADDR16_LO,	/* type */
    250  1.1  christos 	 0,			/* rightshift */
    251  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    252  1.1  christos 	 16,			/* bitsize */
    253  1.1  christos 	 FALSE,			/* pc_relative */
    254  1.1  christos 	 0,			/* bitpos */
    255  1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
    256  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    257  1.1  christos 	 "R_PPC_ADDR16_LO",	/* name */
    258  1.1  christos 	 FALSE,			/* partial_inplace */
    259  1.1  christos 	 0,			/* src_mask */
    260  1.1  christos 	 0xffff,		/* dst_mask */
    261  1.1  christos 	 FALSE),		/* pcrel_offset */
    262  1.1  christos 
    263  1.1  christos   /* The high order 16 bits of an address.  */
    264  1.1  christos   HOWTO (R_PPC_ADDR16_HI,	/* type */
    265  1.1  christos 	 16,			/* rightshift */
    266  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    267  1.1  christos 	 16,			/* bitsize */
    268  1.1  christos 	 FALSE,			/* pc_relative */
    269  1.1  christos 	 0,			/* bitpos */
    270  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    271  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    272  1.1  christos 	 "R_PPC_ADDR16_HI",	/* name */
    273  1.1  christos 	 FALSE,			/* partial_inplace */
    274  1.1  christos 	 0,			/* src_mask */
    275  1.1  christos 	 0xffff,		/* dst_mask */
    276  1.1  christos 	 FALSE),		/* pcrel_offset */
    277  1.1  christos 
    278  1.1  christos   /* The high order 16 bits of an address, plus 1 if the contents of
    279  1.1  christos      the low 16 bits, treated as a signed number, is negative.  */
    280  1.1  christos   HOWTO (R_PPC_ADDR16_HA,	/* type */
    281  1.1  christos 	 16,			/* rightshift */
    282  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    283  1.1  christos 	 16,			/* bitsize */
    284  1.1  christos 	 FALSE,			/* pc_relative */
    285  1.1  christos 	 0,			/* bitpos */
    286  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    287  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
    288  1.1  christos 	 "R_PPC_ADDR16_HA",	/* name */
    289  1.1  christos 	 FALSE,			/* partial_inplace */
    290  1.1  christos 	 0,			/* src_mask */
    291  1.1  christos 	 0xffff,		/* dst_mask */
    292  1.1  christos 	 FALSE),		/* pcrel_offset */
    293  1.1  christos 
    294  1.1  christos   /* An absolute 16 bit branch; the lower two bits must be zero.
    295  1.1  christos      FIXME: we don't check that, we just clear them.  */
    296  1.1  christos   HOWTO (R_PPC_ADDR14,		/* type */
    297  1.1  christos 	 0,			/* rightshift */
    298  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    299  1.1  christos 	 16,			/* bitsize */
    300  1.1  christos 	 FALSE,			/* pc_relative */
    301  1.3  christos 	 0,			/* bitpos */
    302  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    303  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    304  1.1  christos 	 "R_PPC_ADDR14",	/* name */
    305  1.1  christos 	 FALSE,			/* partial_inplace */
    306  1.1  christos 	 0,			/* src_mask */
    307  1.1  christos 	 0xfffc,		/* dst_mask */
    308  1.1  christos 	 FALSE),		/* pcrel_offset */
    309  1.1  christos 
    310  1.1  christos   /* An absolute 16 bit branch, for which bit 10 should be set to
    311  1.1  christos      indicate that the branch is expected to be taken.	The lower two
    312  1.1  christos      bits must be zero.  */
    313  1.1  christos   HOWTO (R_PPC_ADDR14_BRTAKEN,	/* type */
    314  1.1  christos 	 0,			/* rightshift */
    315  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    316  1.1  christos 	 16,			/* bitsize */
    317  1.1  christos 	 FALSE,			/* pc_relative */
    318  1.3  christos 	 0,			/* bitpos */
    319  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    320  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    321  1.1  christos 	 "R_PPC_ADDR14_BRTAKEN",/* name */
    322  1.1  christos 	 FALSE,			/* partial_inplace */
    323  1.1  christos 	 0,			/* src_mask */
    324  1.1  christos 	 0xfffc,		/* dst_mask */
    325  1.1  christos 	 FALSE),		/* pcrel_offset */
    326  1.1  christos 
    327  1.1  christos   /* An absolute 16 bit branch, for which bit 10 should be set to
    328  1.1  christos      indicate that the branch is not expected to be taken.  The lower
    329  1.1  christos      two bits must be zero.  */
    330  1.1  christos   HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
    331  1.1  christos 	 0,			/* rightshift */
    332  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    333  1.1  christos 	 16,			/* bitsize */
    334  1.1  christos 	 FALSE,			/* pc_relative */
    335  1.3  christos 	 0,			/* bitpos */
    336  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    337  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    338  1.1  christos 	 "R_PPC_ADDR14_BRNTAKEN",/* name */
    339  1.1  christos 	 FALSE,			/* partial_inplace */
    340  1.1  christos 	 0,			/* src_mask */
    341  1.1  christos 	 0xfffc,		/* dst_mask */
    342  1.1  christos 	 FALSE),		/* pcrel_offset */
    343  1.1  christos 
    344  1.1  christos   /* A relative 26 bit branch; the lower two bits must be zero.  */
    345  1.1  christos   HOWTO (R_PPC_REL24,		/* type */
    346  1.1  christos 	 0,			/* rightshift */
    347  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    348  1.1  christos 	 26,			/* bitsize */
    349  1.1  christos 	 TRUE,			/* pc_relative */
    350  1.1  christos 	 0,			/* bitpos */
    351  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    352  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    353  1.1  christos 	 "R_PPC_REL24",		/* name */
    354  1.1  christos 	 FALSE,			/* partial_inplace */
    355  1.1  christos 	 0,			/* src_mask */
    356  1.1  christos 	 0x3fffffc,		/* dst_mask */
    357  1.1  christos 	 TRUE),			/* pcrel_offset */
    358  1.1  christos 
    359  1.1  christos   /* A relative 16 bit branch; the lower two bits must be zero.  */
    360  1.1  christos   HOWTO (R_PPC_REL14,		/* type */
    361  1.1  christos 	 0,			/* rightshift */
    362  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    363  1.1  christos 	 16,			/* bitsize */
    364  1.1  christos 	 TRUE,			/* pc_relative */
    365  1.1  christos 	 0,			/* bitpos */
    366  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    367  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    368  1.1  christos 	 "R_PPC_REL14",		/* name */
    369  1.1  christos 	 FALSE,			/* partial_inplace */
    370  1.1  christos 	 0,			/* src_mask */
    371  1.1  christos 	 0xfffc,		/* dst_mask */
    372  1.1  christos 	 TRUE),			/* pcrel_offset */
    373  1.1  christos 
    374  1.1  christos   /* A relative 16 bit branch.  Bit 10 should be set to indicate that
    375  1.1  christos      the branch is expected to be taken.  The lower two bits must be
    376  1.1  christos      zero.  */
    377  1.1  christos   HOWTO (R_PPC_REL14_BRTAKEN,	/* type */
    378  1.1  christos 	 0,			/* rightshift */
    379  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    380  1.1  christos 	 16,			/* bitsize */
    381  1.1  christos 	 TRUE,			/* pc_relative */
    382  1.1  christos 	 0,			/* bitpos */
    383  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    384  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    385  1.1  christos 	 "R_PPC_REL14_BRTAKEN",	/* name */
    386  1.1  christos 	 FALSE,			/* partial_inplace */
    387  1.1  christos 	 0,			/* src_mask */
    388  1.1  christos 	 0xfffc,		/* dst_mask */
    389  1.1  christos 	 TRUE),			/* pcrel_offset */
    390  1.1  christos 
    391  1.1  christos   /* A relative 16 bit branch.  Bit 10 should be set to indicate that
    392  1.1  christos      the branch is not expected to be taken.  The lower two bits must
    393  1.1  christos      be zero.  */
    394  1.1  christos   HOWTO (R_PPC_REL14_BRNTAKEN,	/* type */
    395  1.1  christos 	 0,			/* rightshift */
    396  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    397  1.1  christos 	 16,			/* bitsize */
    398  1.1  christos 	 TRUE,			/* pc_relative */
    399  1.1  christos 	 0,			/* bitpos */
    400  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    401  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    402  1.1  christos 	 "R_PPC_REL14_BRNTAKEN",/* name */
    403  1.1  christos 	 FALSE,			/* partial_inplace */
    404  1.1  christos 	 0,			/* src_mask */
    405  1.1  christos 	 0xfffc,		/* dst_mask */
    406  1.1  christos 	 TRUE),			/* pcrel_offset */
    407  1.1  christos 
    408  1.1  christos   /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
    409  1.1  christos      symbol.  */
    410  1.1  christos   HOWTO (R_PPC_GOT16,		/* type */
    411  1.1  christos 	 0,			/* rightshift */
    412  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    413  1.1  christos 	 16,			/* bitsize */
    414  1.1  christos 	 FALSE,			/* pc_relative */
    415  1.1  christos 	 0,			/* bitpos */
    416  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
    417  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    418  1.1  christos 	 "R_PPC_GOT16",		/* name */
    419  1.1  christos 	 FALSE,			/* partial_inplace */
    420  1.1  christos 	 0,			/* src_mask */
    421  1.1  christos 	 0xffff,		/* dst_mask */
    422  1.1  christos 	 FALSE),		/* pcrel_offset */
    423  1.1  christos 
    424  1.1  christos   /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
    425  1.1  christos      the symbol.  */
    426  1.1  christos   HOWTO (R_PPC_GOT16_LO,	/* type */
    427  1.1  christos 	 0,			/* rightshift */
    428  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    429  1.1  christos 	 16,			/* bitsize */
    430  1.1  christos 	 FALSE,			/* pc_relative */
    431  1.1  christos 	 0,			/* bitpos */
    432  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    433  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    434  1.1  christos 	 "R_PPC_GOT16_LO",	/* name */
    435  1.1  christos 	 FALSE,			/* partial_inplace */
    436  1.1  christos 	 0,			/* src_mask */
    437  1.1  christos 	 0xffff,		/* dst_mask */
    438  1.1  christos 	 FALSE),		/* pcrel_offset */
    439  1.1  christos 
    440  1.1  christos   /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
    441  1.1  christos      the symbol.  */
    442  1.1  christos   HOWTO (R_PPC_GOT16_HI,	/* type */
    443  1.1  christos 	 16,			/* rightshift */
    444  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    445  1.1  christos 	 16,			/* bitsize */
    446  1.1  christos 	 FALSE,			/* pc_relative */
    447  1.3  christos 	 0,			/* bitpos */
    448  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    449  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    450  1.1  christos 	 "R_PPC_GOT16_HI",	/* name */
    451  1.1  christos 	 FALSE,			/* partial_inplace */
    452  1.1  christos 	 0,			/* src_mask */
    453  1.1  christos 	 0xffff,		/* dst_mask */
    454  1.1  christos 	 FALSE),		 /* pcrel_offset */
    455  1.1  christos 
    456  1.1  christos   /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
    457  1.1  christos      the symbol.  */
    458  1.1  christos   HOWTO (R_PPC_GOT16_HA,	/* type */
    459  1.1  christos 	 16,			/* rightshift */
    460  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    461  1.1  christos 	 16,			/* bitsize */
    462  1.1  christos 	 FALSE,			/* pc_relative */
    463  1.3  christos 	 0,			/* bitpos */
    464  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    465  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    466  1.1  christos 	 "R_PPC_GOT16_HA",	/* name */
    467  1.1  christos 	 FALSE,			/* partial_inplace */
    468  1.1  christos 	 0,			/* src_mask */
    469  1.1  christos 	 0xffff,		/* dst_mask */
    470  1.1  christos 	 FALSE),		/* pcrel_offset */
    471  1.1  christos 
    472  1.1  christos   /* Like R_PPC_REL24, but referring to the procedure linkage table
    473  1.1  christos      entry for the symbol.  */
    474  1.1  christos   HOWTO (R_PPC_PLTREL24,	/* type */
    475  1.1  christos 	 0,			/* rightshift */
    476  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    477  1.1  christos 	 26,			/* bitsize */
    478  1.1  christos 	 TRUE,			/* pc_relative */
    479  1.6  christos 	 0,			/* bitpos */
    480  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
    481  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    482  1.1  christos 	 "R_PPC_PLTREL24",	/* name */
    483  1.1  christos 	 FALSE,			/* partial_inplace */
    484  1.1  christos 	 0,			/* src_mask */
    485  1.1  christos 	 0x3fffffc,		/* dst_mask */
    486  1.1  christos 	 TRUE),			/* pcrel_offset */
    487  1.1  christos 
    488  1.1  christos   /* This is used only by the dynamic linker.  The symbol should exist
    489  1.1  christos      both in the object being run and in some shared library.  The
    490  1.1  christos      dynamic linker copies the data addressed by the symbol from the
    491  1.1  christos      shared library into the object, because the object being
    492  1.1  christos      run has to have the data at some particular address.  */
    493  1.1  christos   HOWTO (R_PPC_COPY,		/* type */
    494  1.1  christos 	 0,			/* rightshift */
    495  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    496  1.1  christos 	 32,			/* bitsize */
    497  1.1  christos 	 FALSE,			/* pc_relative */
    498  1.3  christos 	 0,			/* bitpos */
    499  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    500  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    501  1.1  christos 	 "R_PPC_COPY",		/* name */
    502  1.1  christos 	 FALSE,			/* partial_inplace */
    503  1.1  christos 	 0,			/* src_mask */
    504  1.1  christos 	 0,			/* dst_mask */
    505  1.1  christos 	 FALSE),		/* pcrel_offset */
    506  1.1  christos 
    507  1.1  christos   /* Like R_PPC_ADDR32, but used when setting global offset table
    508  1.1  christos      entries.  */
    509  1.1  christos   HOWTO (R_PPC_GLOB_DAT,	/* type */
    510  1.1  christos 	 0,			/* rightshift */
    511  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    512  1.1  christos 	 32,			/* bitsize */
    513  1.1  christos 	 FALSE,			/* pc_relative */
    514  1.3  christos 	 0,			/* bitpos */
    515  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    516  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    517  1.1  christos 	 "R_PPC_GLOB_DAT",	/* name */
    518  1.1  christos 	 FALSE,			/* partial_inplace */
    519  1.1  christos 	 0,			/* src_mask */
    520  1.1  christos 	 0xffffffff,		/* dst_mask */
    521  1.1  christos 	 FALSE),		/* pcrel_offset */
    522  1.1  christos 
    523  1.1  christos   /* Marks a procedure linkage table entry for a symbol.  */
    524  1.1  christos   HOWTO (R_PPC_JMP_SLOT,	/* type */
    525  1.1  christos 	 0,			/* rightshift */
    526  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    527  1.1  christos 	 32,			/* bitsize */
    528  1.1  christos 	 FALSE,			/* pc_relative */
    529  1.3  christos 	 0,			/* bitpos */
    530  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    531  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    532  1.1  christos 	 "R_PPC_JMP_SLOT",	/* name */
    533  1.1  christos 	 FALSE,			/* partial_inplace */
    534  1.1  christos 	 0,			/* src_mask */
    535  1.1  christos 	 0,			/* dst_mask */
    536  1.1  christos 	 FALSE),		/* pcrel_offset */
    537  1.1  christos 
    538  1.1  christos   /* Used only by the dynamic linker.  When the object is run, this
    539  1.1  christos      longword is set to the load address of the object, plus the
    540  1.1  christos      addend.  */
    541  1.1  christos   HOWTO (R_PPC_RELATIVE,	/* type */
    542  1.1  christos 	 0,			/* rightshift */
    543  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    544  1.1  christos 	 32,			/* bitsize */
    545  1.1  christos 	 FALSE,			/* pc_relative */
    546  1.3  christos 	 0,			/* bitpos */
    547  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    548  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
    549  1.1  christos 	 "R_PPC_RELATIVE",	/* name */
    550  1.1  christos 	 FALSE,			/* partial_inplace */
    551  1.1  christos 	 0,			/* src_mask */
    552  1.1  christos 	 0xffffffff,		/* dst_mask */
    553  1.1  christos 	 FALSE),		/* pcrel_offset */
    554  1.1  christos 
    555  1.1  christos   /* Like R_PPC_REL24, but uses the value of the symbol within the
    556  1.1  christos      object rather than the final value.  Normally used for
    557  1.1  christos      _GLOBAL_OFFSET_TABLE_.  */
    558  1.1  christos   HOWTO (R_PPC_LOCAL24PC,	/* type */
    559  1.1  christos 	 0,			/* rightshift */
    560  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    561  1.1  christos 	 26,			/* bitsize */
    562  1.1  christos 	 TRUE,			/* pc_relative */
    563  1.1  christos 	 0,			/* bitpos */
    564  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    565  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    566  1.1  christos 	 "R_PPC_LOCAL24PC",	/* name */
    567  1.1  christos 	 FALSE,			/* partial_inplace */
    568  1.1  christos 	 0,			/* src_mask */
    569  1.1  christos 	 0x3fffffc,		/* dst_mask */
    570  1.1  christos 	 TRUE),			/* pcrel_offset */
    571  1.1  christos 
    572  1.1  christos   /* Like R_PPC_ADDR32, but may be unaligned.  */
    573  1.1  christos   HOWTO (R_PPC_UADDR32,		/* type */
    574  1.1  christos 	 0,			/* rightshift */
    575  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    576  1.1  christos 	 32,			/* bitsize */
    577  1.1  christos 	 FALSE,			/* pc_relative */
    578  1.3  christos 	 0,			/* bitpos */
    579  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    580  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    581  1.1  christos 	 "R_PPC_UADDR32",	/* name */
    582  1.1  christos 	 FALSE,			/* partial_inplace */
    583  1.1  christos 	 0,			/* src_mask */
    584  1.1  christos 	 0xffffffff,		/* dst_mask */
    585  1.1  christos 	 FALSE),		/* pcrel_offset */
    586  1.1  christos 
    587  1.1  christos   /* Like R_PPC_ADDR16, but may be unaligned.  */
    588  1.1  christos   HOWTO (R_PPC_UADDR16,		/* type */
    589  1.1  christos 	 0,			/* rightshift */
    590  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    591  1.1  christos 	 16,			/* bitsize */
    592  1.1  christos 	 FALSE,			/* pc_relative */
    593  1.1  christos 	 0,			/* bitpos */
    594  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    595  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    596  1.1  christos 	 "R_PPC_UADDR16",	/* name */
    597  1.1  christos 	 FALSE,			/* partial_inplace */
    598  1.1  christos 	 0,			/* src_mask */
    599  1.1  christos 	 0xffff,		/* dst_mask */
    600  1.1  christos 	 FALSE),		/* pcrel_offset */
    601  1.1  christos 
    602  1.1  christos   /* 32-bit PC relative */
    603  1.1  christos   HOWTO (R_PPC_REL32,		/* type */
    604  1.1  christos 	 0,			/* rightshift */
    605  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    606  1.1  christos 	 32,			/* bitsize */
    607  1.1  christos 	 TRUE,			/* pc_relative */
    608  1.3  christos 	 0,			/* bitpos */
    609  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    610  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    611  1.1  christos 	 "R_PPC_REL32",		/* name */
    612  1.1  christos 	 FALSE,			/* partial_inplace */
    613  1.1  christos 	 0,			/* src_mask */
    614  1.1  christos 	 0xffffffff,		/* dst_mask */
    615  1.1  christos 	 TRUE),			/* pcrel_offset */
    616  1.1  christos 
    617  1.1  christos   /* 32-bit relocation to the symbol's procedure linkage table.
    618  1.1  christos      FIXME: not supported.  */
    619  1.1  christos   HOWTO (R_PPC_PLT32,		/* type */
    620  1.1  christos 	 0,			/* rightshift */
    621  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    622  1.1  christos 	 32,			/* bitsize */
    623  1.1  christos 	 FALSE,			/* pc_relative */
    624  1.3  christos 	 0,			/* bitpos */
    625  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    626  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    627  1.1  christos 	 "R_PPC_PLT32",		/* name */
    628  1.1  christos 	 FALSE,			/* partial_inplace */
    629  1.1  christos 	 0,			/* src_mask */
    630  1.1  christos 	 0,			/* dst_mask */
    631  1.1  christos 	 FALSE),		/* pcrel_offset */
    632  1.1  christos 
    633  1.1  christos   /* 32-bit PC relative relocation to the symbol's procedure linkage table.
    634  1.1  christos      FIXME: not supported.  */
    635  1.1  christos   HOWTO (R_PPC_PLTREL32,	/* type */
    636  1.1  christos 	 0,			/* rightshift */
    637  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    638  1.1  christos 	 32,			/* bitsize */
    639  1.1  christos 	 TRUE,			/* pc_relative */
    640  1.3  christos 	 0,			/* bitpos */
    641  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    642  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    643  1.1  christos 	 "R_PPC_PLTREL32",	/* name */
    644  1.1  christos 	 FALSE,			/* partial_inplace */
    645  1.1  christos 	 0,			/* src_mask */
    646  1.1  christos 	 0,			/* dst_mask */
    647  1.1  christos 	 TRUE),			/* pcrel_offset */
    648  1.1  christos 
    649  1.1  christos   /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
    650  1.1  christos      the symbol.  */
    651  1.1  christos   HOWTO (R_PPC_PLT16_LO,	/* type */
    652  1.1  christos 	 0,			/* rightshift */
    653  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    654  1.1  christos 	 16,			/* bitsize */
    655  1.1  christos 	 FALSE,			/* pc_relative */
    656  1.1  christos 	 0,			/* bitpos */
    657  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    658  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    659  1.1  christos 	 "R_PPC_PLT16_LO",	/* name */
    660  1.1  christos 	 FALSE,			/* partial_inplace */
    661  1.1  christos 	 0,			/* src_mask */
    662  1.1  christos 	 0xffff,		/* dst_mask */
    663  1.1  christos 	 FALSE),		/* pcrel_offset */
    664  1.1  christos 
    665  1.1  christos   /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
    666  1.1  christos      the symbol.  */
    667  1.1  christos   HOWTO (R_PPC_PLT16_HI,	/* type */
    668  1.1  christos 	 16,			/* rightshift */
    669  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    670  1.1  christos 	 16,			/* bitsize */
    671  1.1  christos 	 FALSE,			/* pc_relative */
    672  1.3  christos 	 0,			/* bitpos */
    673  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    674  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    675  1.1  christos 	 "R_PPC_PLT16_HI",	/* name */
    676  1.1  christos 	 FALSE,			/* partial_inplace */
    677  1.1  christos 	 0,			/* src_mask */
    678  1.1  christos 	 0xffff,		/* dst_mask */
    679  1.1  christos 	 FALSE),		 /* pcrel_offset */
    680  1.1  christos 
    681  1.1  christos   /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
    682  1.1  christos      the symbol.  */
    683  1.1  christos   HOWTO (R_PPC_PLT16_HA,	/* type */
    684  1.1  christos 	 16,			/* rightshift */
    685  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    686  1.1  christos 	 16,			/* bitsize */
    687  1.1  christos 	 FALSE,			/* pc_relative */
    688  1.3  christos 	 0,			/* bitpos */
    689  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    690  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    691  1.1  christos 	 "R_PPC_PLT16_HA",	/* name */
    692  1.1  christos 	 FALSE,			/* partial_inplace */
    693  1.1  christos 	 0,			/* src_mask */
    694  1.1  christos 	 0xffff,		/* dst_mask */
    695  1.1  christos 	 FALSE),		/* pcrel_offset */
    696  1.1  christos 
    697  1.1  christos   /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
    698  1.1  christos      small data items.  */
    699  1.1  christos   HOWTO (R_PPC_SDAREL16,	/* type */
    700  1.1  christos 	 0,			/* rightshift */
    701  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    702  1.1  christos 	 16,			/* bitsize */
    703  1.1  christos 	 FALSE,			/* pc_relative */
    704  1.1  christos 	 0,			/* bitpos */
    705  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
    706  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    707  1.1  christos 	 "R_PPC_SDAREL16",	/* name */
    708  1.1  christos 	 FALSE,			/* partial_inplace */
    709  1.1  christos 	 0,			/* src_mask */
    710  1.1  christos 	 0xffff,		/* dst_mask */
    711  1.1  christos 	 FALSE),		/* pcrel_offset */
    712  1.1  christos 
    713  1.1  christos   /* 16-bit section relative relocation.  */
    714  1.1  christos   HOWTO (R_PPC_SECTOFF,		/* type */
    715  1.1  christos 	 0,			/* rightshift */
    716  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    717  1.1  christos 	 16,			/* bitsize */
    718  1.1  christos 	 FALSE,			/* pc_relative */
    719  1.3  christos 	 0,			/* bitpos */
    720  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
    721  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    722  1.1  christos 	 "R_PPC_SECTOFF",	/* name */
    723  1.1  christos 	 FALSE,			/* partial_inplace */
    724  1.1  christos 	 0,			/* src_mask */
    725  1.1  christos 	 0xffff,		/* dst_mask */
    726  1.1  christos 	 FALSE),		/* pcrel_offset */
    727  1.1  christos 
    728  1.1  christos   /* 16-bit lower half section relative relocation.  */
    729  1.1  christos   HOWTO (R_PPC_SECTOFF_LO,	  /* type */
    730  1.1  christos 	 0,			/* rightshift */
    731  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    732  1.1  christos 	 16,			/* bitsize */
    733  1.1  christos 	 FALSE,			/* pc_relative */
    734  1.1  christos 	 0,			/* bitpos */
    735  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    736  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    737  1.1  christos 	 "R_PPC_SECTOFF_LO",	/* name */
    738  1.1  christos 	 FALSE,			/* partial_inplace */
    739  1.1  christos 	 0,			/* src_mask */
    740  1.1  christos 	 0xffff,		/* dst_mask */
    741  1.1  christos 	 FALSE),		/* pcrel_offset */
    742  1.1  christos 
    743  1.1  christos   /* 16-bit upper half section relative relocation.  */
    744  1.1  christos   HOWTO (R_PPC_SECTOFF_HI,	/* type */
    745  1.1  christos 	 16,			/* rightshift */
    746  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    747  1.1  christos 	 16,			/* bitsize */
    748  1.1  christos 	 FALSE,			/* pc_relative */
    749  1.3  christos 	 0,			/* bitpos */
    750  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    751  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    752  1.1  christos 	 "R_PPC_SECTOFF_HI",	/* name */
    753  1.1  christos 	 FALSE,			/* partial_inplace */
    754  1.1  christos 	 0,			/* src_mask */
    755  1.1  christos 	 0xffff,		/* dst_mask */
    756  1.1  christos 	 FALSE),		 /* pcrel_offset */
    757  1.1  christos 
    758  1.1  christos   /* 16-bit upper half adjusted section relative relocation.  */
    759  1.1  christos   HOWTO (R_PPC_SECTOFF_HA,	/* type */
    760  1.1  christos 	 16,			/* rightshift */
    761  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    762  1.1  christos 	 16,			/* bitsize */
    763  1.1  christos 	 FALSE,			/* pc_relative */
    764  1.3  christos 	 0,			/* bitpos */
    765  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
    766  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    767  1.1  christos 	 "R_PPC_SECTOFF_HA",	/* name */
    768  1.1  christos 	 FALSE,			/* partial_inplace */
    769  1.1  christos 	 0,			/* src_mask */
    770  1.1  christos 	 0xffff,		/* dst_mask */
    771  1.1  christos 	 FALSE),		/* pcrel_offset */
    772  1.1  christos 
    773  1.1  christos   /* Marker relocs for TLS.  */
    774  1.1  christos   HOWTO (R_PPC_TLS,
    775  1.1  christos 	 0,			/* rightshift */
    776  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    777  1.1  christos 	 32,			/* bitsize */
    778  1.1  christos 	 FALSE,			/* pc_relative */
    779  1.1  christos 	 0,			/* bitpos */
    780  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    781  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    782  1.1  christos 	 "R_PPC_TLS",		/* name */
    783  1.1  christos 	 FALSE,			/* partial_inplace */
    784  1.1  christos 	 0,			/* src_mask */
    785  1.1  christos 	 0,			/* dst_mask */
    786  1.1  christos 	 FALSE),		/* pcrel_offset */
    787  1.1  christos 
    788  1.1  christos   HOWTO (R_PPC_TLSGD,
    789  1.1  christos 	 0,			/* rightshift */
    790  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    791  1.1  christos 	 32,			/* bitsize */
    792  1.1  christos 	 FALSE,			/* pc_relative */
    793  1.1  christos 	 0,			/* bitpos */
    794  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    795  1.1  christos 	 bfd_elf_generic_reloc, /* special_function */
    796  1.1  christos 	 "R_PPC_TLSGD",		/* name */
    797  1.1  christos 	 FALSE,			/* partial_inplace */
    798  1.1  christos 	 0,			/* src_mask */
    799  1.1  christos 	 0,			/* dst_mask */
    800  1.1  christos 	 FALSE),		/* pcrel_offset */
    801  1.1  christos 
    802  1.1  christos   HOWTO (R_PPC_TLSLD,
    803  1.1  christos 	 0,			/* rightshift */
    804  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    805  1.1  christos 	 32,			/* bitsize */
    806  1.1  christos 	 FALSE,			/* pc_relative */
    807  1.1  christos 	 0,			/* bitpos */
    808  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    809  1.1  christos 	 bfd_elf_generic_reloc, /* special_function */
    810  1.1  christos 	 "R_PPC_TLSLD",		/* name */
    811  1.1  christos 	 FALSE,			/* partial_inplace */
    812  1.1  christos 	 0,			/* src_mask */
    813  1.1  christos 	 0,			/* dst_mask */
    814  1.1  christos 	 FALSE),		/* pcrel_offset */
    815  1.1  christos 
    816  1.1  christos   /* Computes the load module index of the load module that contains the
    817  1.1  christos      definition of its TLS sym.  */
    818  1.1  christos   HOWTO (R_PPC_DTPMOD32,
    819  1.1  christos 	 0,			/* rightshift */
    820  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    821  1.1  christos 	 32,			/* bitsize */
    822  1.1  christos 	 FALSE,			/* pc_relative */
    823  1.1  christos 	 0,			/* bitpos */
    824  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    825  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    826  1.1  christos 	 "R_PPC_DTPMOD32",	/* name */
    827  1.1  christos 	 FALSE,			/* partial_inplace */
    828  1.1  christos 	 0,			/* src_mask */
    829  1.1  christos 	 0xffffffff,		/* dst_mask */
    830  1.1  christos 	 FALSE),		/* pcrel_offset */
    831  1.1  christos 
    832  1.1  christos   /* Computes a dtv-relative displacement, the difference between the value
    833  1.1  christos      of sym+add and the base address of the thread-local storage block that
    834  1.1  christos      contains the definition of sym, minus 0x8000.  */
    835  1.1  christos   HOWTO (R_PPC_DTPREL32,
    836  1.1  christos 	 0,			/* rightshift */
    837  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    838  1.1  christos 	 32,			/* bitsize */
    839  1.1  christos 	 FALSE,			/* pc_relative */
    840  1.1  christos 	 0,			/* bitpos */
    841  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    842  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    843  1.1  christos 	 "R_PPC_DTPREL32",	/* name */
    844  1.1  christos 	 FALSE,			/* partial_inplace */
    845  1.1  christos 	 0,			/* src_mask */
    846  1.1  christos 	 0xffffffff,		/* dst_mask */
    847  1.1  christos 	 FALSE),		/* pcrel_offset */
    848  1.1  christos 
    849  1.1  christos   /* A 16 bit dtprel reloc.  */
    850  1.1  christos   HOWTO (R_PPC_DTPREL16,
    851  1.1  christos 	 0,			/* rightshift */
    852  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    853  1.1  christos 	 16,			/* bitsize */
    854  1.1  christos 	 FALSE,			/* pc_relative */
    855  1.1  christos 	 0,			/* bitpos */
    856  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    857  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    858  1.1  christos 	 "R_PPC_DTPREL16",	/* name */
    859  1.1  christos 	 FALSE,			/* partial_inplace */
    860  1.1  christos 	 0,			/* src_mask */
    861  1.1  christos 	 0xffff,		/* dst_mask */
    862  1.1  christos 	 FALSE),		/* pcrel_offset */
    863  1.1  christos 
    864  1.1  christos   /* Like DTPREL16, but no overflow.  */
    865  1.1  christos   HOWTO (R_PPC_DTPREL16_LO,
    866  1.1  christos 	 0,			/* rightshift */
    867  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    868  1.1  christos 	 16,			/* bitsize */
    869  1.1  christos 	 FALSE,			/* pc_relative */
    870  1.1  christos 	 0,			/* bitpos */
    871  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    872  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    873  1.1  christos 	 "R_PPC_DTPREL16_LO",	/* name */
    874  1.1  christos 	 FALSE,			/* partial_inplace */
    875  1.1  christos 	 0,			/* src_mask */
    876  1.1  christos 	 0xffff,		/* dst_mask */
    877  1.1  christos 	 FALSE),		/* pcrel_offset */
    878  1.1  christos 
    879  1.1  christos   /* Like DTPREL16_LO, but next higher group of 16 bits.  */
    880  1.1  christos   HOWTO (R_PPC_DTPREL16_HI,
    881  1.1  christos 	 16,			/* rightshift */
    882  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    883  1.1  christos 	 16,			/* bitsize */
    884  1.1  christos 	 FALSE,			/* pc_relative */
    885  1.1  christos 	 0,			/* bitpos */
    886  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    887  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    888  1.1  christos 	 "R_PPC_DTPREL16_HI",	/* name */
    889  1.1  christos 	 FALSE,			/* partial_inplace */
    890  1.1  christos 	 0,			/* src_mask */
    891  1.1  christos 	 0xffff,		/* dst_mask */
    892  1.1  christos 	 FALSE),		/* pcrel_offset */
    893  1.1  christos 
    894  1.1  christos   /* Like DTPREL16_HI, but adjust for low 16 bits.  */
    895  1.1  christos   HOWTO (R_PPC_DTPREL16_HA,
    896  1.1  christos 	 16,			/* rightshift */
    897  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    898  1.1  christos 	 16,			/* bitsize */
    899  1.1  christos 	 FALSE,			/* pc_relative */
    900  1.1  christos 	 0,			/* bitpos */
    901  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    902  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    903  1.1  christos 	 "R_PPC_DTPREL16_HA",	/* name */
    904  1.1  christos 	 FALSE,			/* partial_inplace */
    905  1.1  christos 	 0,			/* src_mask */
    906  1.1  christos 	 0xffff,		/* dst_mask */
    907  1.1  christos 	 FALSE),		/* pcrel_offset */
    908  1.1  christos 
    909  1.1  christos   /* Computes a tp-relative displacement, the difference between the value of
    910  1.1  christos      sym+add and the value of the thread pointer (r13).  */
    911  1.1  christos   HOWTO (R_PPC_TPREL32,
    912  1.1  christos 	 0,			/* rightshift */
    913  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    914  1.1  christos 	 32,			/* bitsize */
    915  1.1  christos 	 FALSE,			/* pc_relative */
    916  1.1  christos 	 0,			/* bitpos */
    917  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    918  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    919  1.1  christos 	 "R_PPC_TPREL32",	/* name */
    920  1.1  christos 	 FALSE,			/* partial_inplace */
    921  1.1  christos 	 0,			/* src_mask */
    922  1.1  christos 	 0xffffffff,		/* dst_mask */
    923  1.1  christos 	 FALSE),		/* pcrel_offset */
    924  1.1  christos 
    925  1.1  christos   /* A 16 bit tprel reloc.  */
    926  1.1  christos   HOWTO (R_PPC_TPREL16,
    927  1.1  christos 	 0,			/* rightshift */
    928  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    929  1.1  christos 	 16,			/* bitsize */
    930  1.1  christos 	 FALSE,			/* pc_relative */
    931  1.1  christos 	 0,			/* bitpos */
    932  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    933  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    934  1.1  christos 	 "R_PPC_TPREL16",	/* name */
    935  1.1  christos 	 FALSE,			/* partial_inplace */
    936  1.1  christos 	 0,			/* src_mask */
    937  1.1  christos 	 0xffff,		/* dst_mask */
    938  1.1  christos 	 FALSE),		/* pcrel_offset */
    939  1.1  christos 
    940  1.1  christos   /* Like TPREL16, but no overflow.  */
    941  1.1  christos   HOWTO (R_PPC_TPREL16_LO,
    942  1.1  christos 	 0,			/* rightshift */
    943  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    944  1.1  christos 	 16,			/* bitsize */
    945  1.1  christos 	 FALSE,			/* pc_relative */
    946  1.1  christos 	 0,			/* bitpos */
    947  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    948  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    949  1.1  christos 	 "R_PPC_TPREL16_LO",	/* name */
    950  1.1  christos 	 FALSE,			/* partial_inplace */
    951  1.1  christos 	 0,			/* src_mask */
    952  1.1  christos 	 0xffff,		/* dst_mask */
    953  1.1  christos 	 FALSE),		/* pcrel_offset */
    954  1.1  christos 
    955  1.1  christos   /* Like TPREL16_LO, but next higher group of 16 bits.  */
    956  1.1  christos   HOWTO (R_PPC_TPREL16_HI,
    957  1.1  christos 	 16,			/* rightshift */
    958  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    959  1.1  christos 	 16,			/* bitsize */
    960  1.1  christos 	 FALSE,			/* pc_relative */
    961  1.1  christos 	 0,			/* bitpos */
    962  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    963  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    964  1.1  christos 	 "R_PPC_TPREL16_HI",	/* name */
    965  1.1  christos 	 FALSE,			/* partial_inplace */
    966  1.1  christos 	 0,			/* src_mask */
    967  1.1  christos 	 0xffff,		/* dst_mask */
    968  1.1  christos 	 FALSE),		/* pcrel_offset */
    969  1.1  christos 
    970  1.1  christos   /* Like TPREL16_HI, but adjust for low 16 bits.  */
    971  1.1  christos   HOWTO (R_PPC_TPREL16_HA,
    972  1.1  christos 	 16,			/* rightshift */
    973  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    974  1.1  christos 	 16,			/* bitsize */
    975  1.1  christos 	 FALSE,			/* pc_relative */
    976  1.1  christos 	 0,			/* bitpos */
    977  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    978  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    979  1.1  christos 	 "R_PPC_TPREL16_HA",	/* name */
    980  1.1  christos 	 FALSE,			/* partial_inplace */
    981  1.1  christos 	 0,			/* src_mask */
    982  1.1  christos 	 0xffff,		/* dst_mask */
    983  1.1  christos 	 FALSE),		/* pcrel_offset */
    984  1.1  christos 
    985  1.1  christos   /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
    986  1.1  christos      with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
    987  1.1  christos      to the first entry.  */
    988  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16,
    989  1.1  christos 	 0,			/* rightshift */
    990  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    991  1.1  christos 	 16,			/* bitsize */
    992  1.1  christos 	 FALSE,			/* pc_relative */
    993  1.1  christos 	 0,			/* bitpos */
    994  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    995  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    996  1.1  christos 	 "R_PPC_GOT_TLSGD16",	/* name */
    997  1.1  christos 	 FALSE,			/* partial_inplace */
    998  1.1  christos 	 0,			/* src_mask */
    999  1.1  christos 	 0xffff,		/* dst_mask */
   1000  1.1  christos 	 FALSE),		/* pcrel_offset */
   1001  1.1  christos 
   1002  1.1  christos   /* Like GOT_TLSGD16, but no overflow.  */
   1003  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_LO,
   1004  1.1  christos 	 0,			/* rightshift */
   1005  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1006  1.1  christos 	 16,			/* bitsize */
   1007  1.1  christos 	 FALSE,			/* pc_relative */
   1008  1.1  christos 	 0,			/* bitpos */
   1009  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1010  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1011  1.1  christos 	 "R_PPC_GOT_TLSGD16_LO", /* name */
   1012  1.1  christos 	 FALSE,			/* partial_inplace */
   1013  1.1  christos 	 0,			/* src_mask */
   1014  1.1  christos 	 0xffff,		/* dst_mask */
   1015  1.1  christos 	 FALSE),		/* pcrel_offset */
   1016  1.1  christos 
   1017  1.1  christos   /* Like GOT_TLSGD16_LO, but next higher group of 16 bits.  */
   1018  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_HI,
   1019  1.1  christos 	 16,			/* rightshift */
   1020  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1021  1.1  christos 	 16,			/* bitsize */
   1022  1.1  christos 	 FALSE,			/* pc_relative */
   1023  1.1  christos 	 0,			/* bitpos */
   1024  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1025  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1026  1.1  christos 	 "R_PPC_GOT_TLSGD16_HI", /* name */
   1027  1.1  christos 	 FALSE,			/* partial_inplace */
   1028  1.1  christos 	 0,			/* src_mask */
   1029  1.1  christos 	 0xffff,		/* dst_mask */
   1030  1.1  christos 	 FALSE),		/* pcrel_offset */
   1031  1.1  christos 
   1032  1.1  christos   /* Like GOT_TLSGD16_HI, but adjust for low 16 bits.  */
   1033  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_HA,
   1034  1.1  christos 	 16,			/* rightshift */
   1035  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1036  1.1  christos 	 16,			/* bitsize */
   1037  1.1  christos 	 FALSE,			/* pc_relative */
   1038  1.1  christos 	 0,			/* bitpos */
   1039  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1040  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1041  1.1  christos 	 "R_PPC_GOT_TLSGD16_HA", /* name */
   1042  1.1  christos 	 FALSE,			/* partial_inplace */
   1043  1.1  christos 	 0,			/* src_mask */
   1044  1.1  christos 	 0xffff,		/* dst_mask */
   1045  1.1  christos 	 FALSE),		/* pcrel_offset */
   1046  1.1  christos 
   1047  1.1  christos   /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
   1048  1.1  christos      with values (sym+add)@dtpmod and zero, and computes the offset to the
   1049  1.1  christos      first entry.  */
   1050  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16,
   1051  1.1  christos 	 0,			/* rightshift */
   1052  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1053  1.1  christos 	 16,			/* bitsize */
   1054  1.1  christos 	 FALSE,			/* pc_relative */
   1055  1.1  christos 	 0,			/* bitpos */
   1056  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1057  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1058  1.1  christos 	 "R_PPC_GOT_TLSLD16",	/* name */
   1059  1.1  christos 	 FALSE,			/* partial_inplace */
   1060  1.1  christos 	 0,			/* src_mask */
   1061  1.1  christos 	 0xffff,		/* dst_mask */
   1062  1.1  christos 	 FALSE),		/* pcrel_offset */
   1063  1.1  christos 
   1064  1.1  christos   /* Like GOT_TLSLD16, but no overflow.  */
   1065  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_LO,
   1066  1.1  christos 	 0,			/* rightshift */
   1067  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1068  1.1  christos 	 16,			/* bitsize */
   1069  1.1  christos 	 FALSE,			/* pc_relative */
   1070  1.1  christos 	 0,			/* bitpos */
   1071  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1072  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1073  1.1  christos 	 "R_PPC_GOT_TLSLD16_LO", /* name */
   1074  1.1  christos 	 FALSE,			/* partial_inplace */
   1075  1.1  christos 	 0,			/* src_mask */
   1076  1.1  christos 	 0xffff,		/* dst_mask */
   1077  1.1  christos 	 FALSE),		/* pcrel_offset */
   1078  1.1  christos 
   1079  1.1  christos   /* Like GOT_TLSLD16_LO, but next higher group of 16 bits.  */
   1080  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_HI,
   1081  1.1  christos 	 16,			/* rightshift */
   1082  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1083  1.1  christos 	 16,			/* bitsize */
   1084  1.1  christos 	 FALSE,			/* pc_relative */
   1085  1.1  christos 	 0,			/* bitpos */
   1086  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1087  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1088  1.1  christos 	 "R_PPC_GOT_TLSLD16_HI", /* name */
   1089  1.1  christos 	 FALSE,			/* partial_inplace */
   1090  1.1  christos 	 0,			/* src_mask */
   1091  1.1  christos 	 0xffff,		/* dst_mask */
   1092  1.1  christos 	 FALSE),		/* pcrel_offset */
   1093  1.1  christos 
   1094  1.1  christos   /* Like GOT_TLSLD16_HI, but adjust for low 16 bits.  */
   1095  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_HA,
   1096  1.1  christos 	 16,			/* rightshift */
   1097  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1098  1.1  christos 	 16,			/* bitsize */
   1099  1.1  christos 	 FALSE,			/* pc_relative */
   1100  1.1  christos 	 0,			/* bitpos */
   1101  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1102  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1103  1.1  christos 	 "R_PPC_GOT_TLSLD16_HA", /* name */
   1104  1.1  christos 	 FALSE,			/* partial_inplace */
   1105  1.1  christos 	 0,			/* src_mask */
   1106  1.1  christos 	 0xffff,		/* dst_mask */
   1107  1.1  christos 	 FALSE),		/* pcrel_offset */
   1108  1.1  christos 
   1109  1.1  christos   /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
   1110  1.1  christos      the offset to the entry.  */
   1111  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16,
   1112  1.1  christos 	 0,			/* rightshift */
   1113  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1114  1.1  christos 	 16,			/* bitsize */
   1115  1.1  christos 	 FALSE,			/* pc_relative */
   1116  1.1  christos 	 0,			/* bitpos */
   1117  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1118  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1119  1.1  christos 	 "R_PPC_GOT_DTPREL16",	/* name */
   1120  1.1  christos 	 FALSE,			/* partial_inplace */
   1121  1.1  christos 	 0,			/* src_mask */
   1122  1.1  christos 	 0xffff,		/* dst_mask */
   1123  1.1  christos 	 FALSE),		/* pcrel_offset */
   1124  1.1  christos 
   1125  1.1  christos   /* Like GOT_DTPREL16, but no overflow.  */
   1126  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_LO,
   1127  1.1  christos 	 0,			/* rightshift */
   1128  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1129  1.1  christos 	 16,			/* bitsize */
   1130  1.1  christos 	 FALSE,			/* pc_relative */
   1131  1.1  christos 	 0,			/* bitpos */
   1132  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1133  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1134  1.1  christos 	 "R_PPC_GOT_DTPREL16_LO", /* name */
   1135  1.1  christos 	 FALSE,			/* partial_inplace */
   1136  1.1  christos 	 0,			/* src_mask */
   1137  1.1  christos 	 0xffff,		/* dst_mask */
   1138  1.1  christos 	 FALSE),		/* pcrel_offset */
   1139  1.1  christos 
   1140  1.1  christos   /* Like GOT_DTPREL16_LO, but next higher group of 16 bits.  */
   1141  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_HI,
   1142  1.1  christos 	 16,			/* rightshift */
   1143  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1144  1.1  christos 	 16,			/* bitsize */
   1145  1.1  christos 	 FALSE,			/* pc_relative */
   1146  1.1  christos 	 0,			/* bitpos */
   1147  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1148  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1149  1.1  christos 	 "R_PPC_GOT_DTPREL16_HI", /* name */
   1150  1.1  christos 	 FALSE,			/* partial_inplace */
   1151  1.1  christos 	 0,			/* src_mask */
   1152  1.1  christos 	 0xffff,		/* dst_mask */
   1153  1.1  christos 	 FALSE),		/* pcrel_offset */
   1154  1.1  christos 
   1155  1.1  christos   /* Like GOT_DTPREL16_HI, but adjust for low 16 bits.  */
   1156  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_HA,
   1157  1.1  christos 	 16,			/* rightshift */
   1158  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1159  1.1  christos 	 16,			/* bitsize */
   1160  1.1  christos 	 FALSE,			/* pc_relative */
   1161  1.1  christos 	 0,			/* bitpos */
   1162  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1163  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1164  1.1  christos 	 "R_PPC_GOT_DTPREL16_HA", /* name */
   1165  1.1  christos 	 FALSE,			/* partial_inplace */
   1166  1.1  christos 	 0,			/* src_mask */
   1167  1.1  christos 	 0xffff,		/* dst_mask */
   1168  1.1  christos 	 FALSE),		/* pcrel_offset */
   1169  1.1  christos 
   1170  1.1  christos   /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
   1171  1.1  christos      offset to the entry.  */
   1172  1.1  christos   HOWTO (R_PPC_GOT_TPREL16,
   1173  1.1  christos 	 0,			/* rightshift */
   1174  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1175  1.1  christos 	 16,			/* bitsize */
   1176  1.1  christos 	 FALSE,			/* pc_relative */
   1177  1.1  christos 	 0,			/* bitpos */
   1178  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1179  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1180  1.1  christos 	 "R_PPC_GOT_TPREL16",	/* name */
   1181  1.1  christos 	 FALSE,			/* partial_inplace */
   1182  1.1  christos 	 0,			/* src_mask */
   1183  1.1  christos 	 0xffff,		/* dst_mask */
   1184  1.1  christos 	 FALSE),		/* pcrel_offset */
   1185  1.1  christos 
   1186  1.1  christos   /* Like GOT_TPREL16, but no overflow.  */
   1187  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_LO,
   1188  1.1  christos 	 0,			/* rightshift */
   1189  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1190  1.1  christos 	 16,			/* bitsize */
   1191  1.1  christos 	 FALSE,			/* pc_relative */
   1192  1.1  christos 	 0,			/* bitpos */
   1193  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1194  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1195  1.1  christos 	 "R_PPC_GOT_TPREL16_LO", /* name */
   1196  1.1  christos 	 FALSE,			/* partial_inplace */
   1197  1.1  christos 	 0,			/* src_mask */
   1198  1.1  christos 	 0xffff,		/* dst_mask */
   1199  1.1  christos 	 FALSE),		/* pcrel_offset */
   1200  1.1  christos 
   1201  1.1  christos   /* Like GOT_TPREL16_LO, but next higher group of 16 bits.  */
   1202  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_HI,
   1203  1.1  christos 	 16,			/* rightshift */
   1204  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1205  1.1  christos 	 16,			/* bitsize */
   1206  1.1  christos 	 FALSE,			/* pc_relative */
   1207  1.1  christos 	 0,			/* bitpos */
   1208  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1209  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1210  1.1  christos 	 "R_PPC_GOT_TPREL16_HI", /* name */
   1211  1.1  christos 	 FALSE,			/* partial_inplace */
   1212  1.1  christos 	 0,			/* src_mask */
   1213  1.1  christos 	 0xffff,		/* dst_mask */
   1214  1.1  christos 	 FALSE),		/* pcrel_offset */
   1215  1.1  christos 
   1216  1.1  christos   /* Like GOT_TPREL16_HI, but adjust for low 16 bits.  */
   1217  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_HA,
   1218  1.1  christos 	 16,			/* rightshift */
   1219  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1220  1.1  christos 	 16,			/* bitsize */
   1221  1.1  christos 	 FALSE,			/* pc_relative */
   1222  1.1  christos 	 0,			/* bitpos */
   1223  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1224  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1225  1.1  christos 	 "R_PPC_GOT_TPREL16_HA", /* name */
   1226  1.1  christos 	 FALSE,			/* partial_inplace */
   1227  1.1  christos 	 0,			/* src_mask */
   1228  1.1  christos 	 0xffff,		/* dst_mask */
   1229  1.1  christos 	 FALSE),		/* pcrel_offset */
   1230  1.1  christos 
   1231  1.1  christos   /* The remaining relocs are from the Embedded ELF ABI, and are not
   1232  1.1  christos      in the SVR4 ELF ABI.  */
   1233  1.1  christos 
   1234  1.1  christos   /* 32 bit value resulting from the addend minus the symbol.  */
   1235  1.1  christos   HOWTO (R_PPC_EMB_NADDR32,	/* type */
   1236  1.1  christos 	 0,			/* rightshift */
   1237  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1238  1.1  christos 	 32,			/* bitsize */
   1239  1.1  christos 	 FALSE,			/* pc_relative */
   1240  1.3  christos 	 0,			/* bitpos */
   1241  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1242  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1243  1.1  christos 	 "R_PPC_EMB_NADDR32",	/* name */
   1244  1.1  christos 	 FALSE,			/* partial_inplace */
   1245  1.1  christos 	 0,			/* src_mask */
   1246  1.1  christos 	 0xffffffff,		/* dst_mask */
   1247  1.1  christos 	 FALSE),		/* pcrel_offset */
   1248  1.1  christos 
   1249  1.1  christos   /* 16 bit value resulting from the addend minus the symbol.  */
   1250  1.1  christos   HOWTO (R_PPC_EMB_NADDR16,	/* type */
   1251  1.1  christos 	 0,			/* rightshift */
   1252  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1253  1.1  christos 	 16,			/* bitsize */
   1254  1.1  christos 	 FALSE,			/* pc_relative */
   1255  1.3  christos 	 0,			/* bitpos */
   1256  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1257  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1258  1.1  christos 	 "R_PPC_EMB_NADDR16",	/* name */
   1259  1.1  christos 	 FALSE,			/* partial_inplace */
   1260  1.1  christos 	 0,			/* src_mask */
   1261  1.1  christos 	 0xffff,		/* dst_mask */
   1262  1.1  christos 	 FALSE),		/* pcrel_offset */
   1263  1.1  christos 
   1264  1.1  christos   /* 16 bit value resulting from the addend minus the symbol.  */
   1265  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_LO,	/* type */
   1266  1.1  christos 	 0,			/* rightshift */
   1267  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1268  1.1  christos 	 16,			/* bitsize */
   1269  1.1  christos 	 FALSE,			/* pc_relative */
   1270  1.1  christos 	 0,			/* bitpos */
   1271  1.6  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1272  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1273  1.1  christos 	 "R_PPC_EMB_ADDR16_LO",	/* name */
   1274  1.1  christos 	 FALSE,			/* partial_inplace */
   1275  1.1  christos 	 0,			/* src_mask */
   1276  1.1  christos 	 0xffff,		/* dst_mask */
   1277  1.1  christos 	 FALSE),		/* pcrel_offset */
   1278  1.1  christos 
   1279  1.1  christos   /* The high order 16 bits of the addend minus the symbol.  */
   1280  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_HI,	/* type */
   1281  1.1  christos 	 16,			/* rightshift */
   1282  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1283  1.1  christos 	 16,			/* bitsize */
   1284  1.1  christos 	 FALSE,			/* pc_relative */
   1285  1.1  christos 	 0,			/* bitpos */
   1286  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1287  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1288  1.1  christos 	 "R_PPC_EMB_NADDR16_HI", /* name */
   1289  1.1  christos 	 FALSE,			/* partial_inplace */
   1290  1.1  christos 	 0,			/* src_mask */
   1291  1.1  christos 	 0xffff,		/* dst_mask */
   1292  1.1  christos 	 FALSE),		/* pcrel_offset */
   1293  1.1  christos 
   1294  1.1  christos   /* The high order 16 bits of the result of the addend minus the address,
   1295  1.1  christos      plus 1 if the contents of the low 16 bits, treated as a signed number,
   1296  1.1  christos      is negative.  */
   1297  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_HA,	/* type */
   1298  1.1  christos 	 16,			/* rightshift */
   1299  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1300  1.1  christos 	 16,			/* bitsize */
   1301  1.1  christos 	 FALSE,			/* pc_relative */
   1302  1.1  christos 	 0,			/* bitpos */
   1303  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1304  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1305  1.1  christos 	 "R_PPC_EMB_NADDR16_HA", /* name */
   1306  1.1  christos 	 FALSE,			/* partial_inplace */
   1307  1.1  christos 	 0,			/* src_mask */
   1308  1.1  christos 	 0xffff,		/* dst_mask */
   1309  1.1  christos 	 FALSE),		/* pcrel_offset */
   1310  1.1  christos 
   1311  1.1  christos   /* 16 bit value resulting from allocating a 4 byte word to hold an
   1312  1.1  christos      address in the .sdata section, and returning the offset from
   1313  1.1  christos      _SDA_BASE_ for that relocation.  */
   1314  1.1  christos   HOWTO (R_PPC_EMB_SDAI16,	/* type */
   1315  1.1  christos 	 0,			/* rightshift */
   1316  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1317  1.1  christos 	 16,			/* bitsize */
   1318  1.1  christos 	 FALSE,			/* pc_relative */
   1319  1.1  christos 	 0,			/* bitpos */
   1320  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1321  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1322  1.1  christos 	 "R_PPC_EMB_SDAI16",	/* name */
   1323  1.1  christos 	 FALSE,			/* partial_inplace */
   1324  1.1  christos 	 0,			/* src_mask */
   1325  1.1  christos 	 0xffff,		/* dst_mask */
   1326  1.1  christos 	 FALSE),		/* pcrel_offset */
   1327  1.1  christos 
   1328  1.1  christos   /* 16 bit value resulting from allocating a 4 byte word to hold an
   1329  1.1  christos      address in the .sdata2 section, and returning the offset from
   1330  1.1  christos      _SDA2_BASE_ for that relocation.  */
   1331  1.1  christos   HOWTO (R_PPC_EMB_SDA2I16,	/* type */
   1332  1.1  christos 	 0,			/* rightshift */
   1333  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1334  1.1  christos 	 16,			/* bitsize */
   1335  1.1  christos 	 FALSE,			/* pc_relative */
   1336  1.1  christos 	 0,			/* bitpos */
   1337  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1338  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1339  1.1  christos 	 "R_PPC_EMB_SDA2I16",	/* name */
   1340  1.1  christos 	 FALSE,			/* partial_inplace */
   1341  1.1  christos 	 0,			/* src_mask */
   1342  1.1  christos 	 0xffff,		/* dst_mask */
   1343  1.1  christos 	 FALSE),		/* pcrel_offset */
   1344  1.1  christos 
   1345  1.1  christos   /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
   1346  1.1  christos      small data items.	 */
   1347  1.1  christos   HOWTO (R_PPC_EMB_SDA2REL,	/* type */
   1348  1.1  christos 	 0,			/* rightshift */
   1349  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1350  1.1  christos 	 16,			/* bitsize */
   1351  1.1  christos 	 FALSE,			/* pc_relative */
   1352  1.1  christos 	 0,			/* bitpos */
   1353  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1354  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1355  1.1  christos 	 "R_PPC_EMB_SDA2REL",	/* name */
   1356  1.1  christos 	 FALSE,			/* partial_inplace */
   1357  1.1  christos 	 0,			/* src_mask */
   1358  1.1  christos 	 0xffff,		/* dst_mask */
   1359  1.1  christos 	 FALSE),		/* pcrel_offset */
   1360  1.1  christos 
   1361  1.1  christos   /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
   1362  1.1  christos      signed offset from the appropriate base, and filling in the register
   1363  1.1  christos      field with the appropriate register (0, 2, or 13).  */
   1364  1.1  christos   HOWTO (R_PPC_EMB_SDA21,	/* type */
   1365  1.1  christos 	 0,			/* rightshift */
   1366  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1367  1.1  christos 	 16,			/* bitsize */
   1368  1.1  christos 	 FALSE,			/* pc_relative */
   1369  1.1  christos 	 0,			/* bitpos */
   1370  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1371  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1372  1.1  christos 	 "R_PPC_EMB_SDA21",	/* name */
   1373  1.1  christos 	 FALSE,			/* partial_inplace */
   1374  1.1  christos 	 0,			/* src_mask */
   1375  1.1  christos 	 0xffff,		/* dst_mask */
   1376  1.1  christos 	 FALSE),		/* pcrel_offset */
   1377  1.1  christos 
   1378  1.1  christos   /* Relocation not handled: R_PPC_EMB_MRKREF */
   1379  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELSEC16 */
   1380  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_LO */
   1381  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_HI */
   1382  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_HA */
   1383  1.1  christos   /* Relocation not handled: R_PPC_EMB_BIT_FLD */
   1384  1.1  christos 
   1385  1.1  christos   /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
   1386  1.1  christos      in the 16 bit signed offset from the appropriate base, and filling in the
   1387  1.1  christos      register field with the appropriate register (0, 2, or 13).  */
   1388  1.1  christos   HOWTO (R_PPC_EMB_RELSDA,	/* type */
   1389  1.1  christos 	 0,			/* rightshift */
   1390  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1391  1.1  christos 	 16,			/* bitsize */
   1392  1.1  christos 	 FALSE,			/* pc_relative */
   1393  1.1  christos 	 0,			/* bitpos */
   1394  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1395  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1396  1.1  christos 	 "R_PPC_EMB_RELSDA",	/* name */
   1397  1.1  christos 	 FALSE,			/* partial_inplace */
   1398  1.1  christos 	 0,			/* src_mask */
   1399  1.1  christos 	 0xffff,		/* dst_mask */
   1400  1.1  christos 	 FALSE),		/* pcrel_offset */
   1401  1.1  christos 
   1402  1.1  christos   /* A relative 8 bit branch.  */
   1403  1.1  christos   HOWTO (R_PPC_VLE_REL8,	/* type */
   1404  1.1  christos 	 1,			/* rightshift */
   1405  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1406  1.1  christos 	 8,			/* bitsize */
   1407  1.1  christos 	 TRUE,			/* pc_relative */
   1408  1.1  christos 	 0,			/* bitpos */
   1409  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1410  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1411  1.1  christos 	 "R_PPC_VLE_REL8",	/* name */
   1412  1.1  christos 	 FALSE,			/* partial_inplace */
   1413  1.1  christos 	 0,			/* src_mask */
   1414  1.1  christos 	 0xff,			/* dst_mask */
   1415  1.1  christos 	 TRUE),			/* pcrel_offset */
   1416  1.1  christos 
   1417  1.1  christos   /* A relative 15 bit branch.  */
   1418  1.1  christos   HOWTO (R_PPC_VLE_REL15,	/* type */
   1419  1.1  christos 	 1,			/* rightshift */
   1420  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1421  1.1  christos 	 15,			/* bitsize */
   1422  1.1  christos 	 TRUE,			/* pc_relative */
   1423  1.1  christos 	 1,			/* bitpos */
   1424  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1425  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1426  1.1  christos 	 "R_PPC_VLE_REL15",	/* name */
   1427  1.1  christos 	 FALSE,			/* partial_inplace */
   1428  1.1  christos 	 0,			/* src_mask */
   1429  1.1  christos 	 0xfe,			/* dst_mask */
   1430  1.1  christos 	 TRUE),			/* pcrel_offset */
   1431  1.1  christos 
   1432  1.1  christos   /* A relative 24 bit branch.  */
   1433  1.1  christos   HOWTO (R_PPC_VLE_REL24,	/* type */
   1434  1.1  christos 	 1,			/* rightshift */
   1435  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1436  1.1  christos 	 24,			/* bitsize */
   1437  1.1  christos 	 TRUE,			/* pc_relative */
   1438  1.1  christos 	 1,			/* bitpos */
   1439  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1440  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1441  1.1  christos 	 "R_PPC_VLE_REL24",	/* name */
   1442  1.1  christos 	 FALSE,			/* partial_inplace */
   1443  1.1  christos 	 0,			/* src_mask */
   1444  1.1  christos 	 0x1fffffe,		/* dst_mask */
   1445  1.1  christos 	 TRUE),			/* pcrel_offset */
   1446  1.1  christos 
   1447  1.1  christos   /* The 16 LSBS in split16a format.  */
   1448  1.1  christos   HOWTO (R_PPC_VLE_LO16A,	/* type */
   1449  1.1  christos 	 0,			/* rightshift */
   1450  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1451  1.1  christos 	 16,			/* bitsize */
   1452  1.1  christos 	 FALSE,			/* pc_relative */
   1453  1.3  christos 	 0,			/* bitpos */
   1454  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1455  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1456  1.1  christos 	 "R_PPC_VLE_LO16A",	/* name */
   1457  1.1  christos 	 FALSE,			/* partial_inplace */
   1458  1.1  christos 	 0,			/* src_mask */
   1459  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1460  1.1  christos 	 FALSE),		/* pcrel_offset */
   1461  1.1  christos 
   1462  1.1  christos   /* The 16 LSBS in split16d format.  */
   1463  1.1  christos   HOWTO (R_PPC_VLE_LO16D,	/* type */
   1464  1.1  christos 	 0,			/* rightshift */
   1465  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1466  1.1  christos 	 16,			/* bitsize */
   1467  1.1  christos 	 FALSE,			/* pc_relative */
   1468  1.3  christos 	 0,			/* bitpos */
   1469  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1470  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1471  1.1  christos 	 "R_PPC_VLE_LO16D",	/* name */
   1472  1.1  christos 	 FALSE,			/* partial_inplace */
   1473  1.1  christos 	 0,			/* src_mask */
   1474  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1475  1.1  christos 	 FALSE),		/* pcrel_offset */
   1476  1.1  christos 
   1477  1.1  christos   /* Bits 16-31 split16a format.  */
   1478  1.3  christos   HOWTO (R_PPC_VLE_HI16A,	/* type */
   1479  1.1  christos 	 16,			/* rightshift */
   1480  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1481  1.1  christos 	 16,			/* bitsize */
   1482  1.1  christos 	 FALSE,			/* pc_relative */
   1483  1.3  christos 	 0,			/* bitpos */
   1484  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1485  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1486  1.1  christos 	 "R_PPC_VLE_HI16A",	/* name */
   1487  1.1  christos 	 FALSE,			/* partial_inplace */
   1488  1.1  christos 	 0,			/* src_mask */
   1489  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1490  1.1  christos 	 FALSE),		/* pcrel_offset */
   1491  1.1  christos 
   1492  1.1  christos   /* Bits 16-31 split16d format.  */
   1493  1.3  christos   HOWTO (R_PPC_VLE_HI16D,	/* type */
   1494  1.1  christos 	 16,			/* rightshift */
   1495  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1496  1.1  christos 	 16,			/* bitsize */
   1497  1.1  christos 	 FALSE,			/* pc_relative */
   1498  1.3  christos 	 0,			/* bitpos */
   1499  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1500  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1501  1.1  christos 	 "R_PPC_VLE_HI16D",	/* name */
   1502  1.1  christos 	 FALSE,			/* partial_inplace */
   1503  1.1  christos 	 0,			/* src_mask */
   1504  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1505  1.1  christos 	 FALSE),		/* pcrel_offset */
   1506  1.1  christos 
   1507  1.1  christos   /* Bits 16-31 (High Adjusted) in split16a format.  */
   1508  1.3  christos   HOWTO (R_PPC_VLE_HA16A,	/* type */
   1509  1.1  christos 	 16,			/* rightshift */
   1510  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1511  1.1  christos 	 16,			/* bitsize */
   1512  1.1  christos 	 FALSE,			/* pc_relative */
   1513  1.3  christos 	 0,			/* bitpos */
   1514  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1515  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1516  1.1  christos 	 "R_PPC_VLE_HA16A",	/* name */
   1517  1.1  christos 	 FALSE,			/* partial_inplace */
   1518  1.1  christos 	 0,			/* src_mask */
   1519  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1520  1.1  christos 	 FALSE),		/* pcrel_offset */
   1521  1.1  christos 
   1522  1.1  christos   /* Bits 16-31 (High Adjusted) in split16d format.  */
   1523  1.3  christos   HOWTO (R_PPC_VLE_HA16D,	/* type */
   1524  1.1  christos 	 16,			/* rightshift */
   1525  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1526  1.1  christos 	 16,			/* bitsize */
   1527  1.1  christos 	 FALSE,			/* pc_relative */
   1528  1.3  christos 	 0,			/* bitpos */
   1529  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1530  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1531  1.1  christos 	 "R_PPC_VLE_HA16D",	/* name */
   1532  1.1  christos 	 FALSE,			/* partial_inplace */
   1533  1.1  christos 	 0,			/* src_mask */
   1534  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1535  1.1  christos 	 FALSE),		/* pcrel_offset */
   1536  1.3  christos 
   1537  1.3  christos   /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
   1538  1.3  christos      instructions.  If the register base is 0 then the linker changes
   1539  1.3  christos      the e_add16i to an e_li instruction.  */
   1540  1.1  christos   HOWTO (R_PPC_VLE_SDA21,	/* type */
   1541  1.1  christos 	 0,			/* rightshift */
   1542  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1543  1.1  christos 	 16,			/* bitsize */
   1544  1.1  christos 	 FALSE,			/* pc_relative */
   1545  1.3  christos 	 0,			/* bitpos */
   1546  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1547  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1548  1.1  christos 	 "R_PPC_VLE_SDA21",	/* name */
   1549  1.1  christos 	 FALSE,			/* partial_inplace */
   1550  1.1  christos 	 0,			/* src_mask */
   1551  1.1  christos 	 0xffff,		/* dst_mask */
   1552  1.1  christos 	 FALSE),		/* pcrel_offset */
   1553  1.3  christos 
   1554  1.1  christos   /* Like R_PPC_VLE_SDA21 but ignore overflow.  */
   1555  1.1  christos   HOWTO (R_PPC_VLE_SDA21_LO,	/* type */
   1556  1.1  christos 	 0,			/* rightshift */
   1557  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1558  1.1  christos 	 16,			/* bitsize */
   1559  1.1  christos 	 FALSE,			/* pc_relative */
   1560  1.3  christos 	 0,			/* bitpos */
   1561  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1562  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1563  1.1  christos 	 "R_PPC_VLE_SDA21_LO",	/* name */
   1564  1.1  christos 	 FALSE,			/* partial_inplace */
   1565  1.3  christos 	 0,			/* src_mask */
   1566  1.1  christos 	 0xffff,		/* dst_mask */
   1567  1.1  christos 	 FALSE),		/* pcrel_offset */
   1568  1.1  christos 
   1569  1.1  christos   /* The 16 LSBS relative to _SDA_BASE_ in split16a format.  */
   1570  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
   1571  1.1  christos 	 0,			/* rightshift */
   1572  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1573  1.1  christos 	 16,			/* bitsize */
   1574  1.1  christos 	 FALSE,			/* pc_relative */
   1575  1.6  christos 	 0,			/* bitpos */
   1576  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1577  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1578  1.1  christos 	 "R_PPC_VLE_SDAREL_LO16A", /* name */
   1579  1.1  christos 	 FALSE,			/* partial_inplace */
   1580  1.1  christos 	 0,			/* src_mask */
   1581  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1582  1.1  christos 	 FALSE),		/* pcrel_offset */
   1583  1.1  christos 
   1584  1.1  christos   /* The 16 LSBS relative to _SDA_BASE_ in split16d format.  */
   1585  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
   1586  1.1  christos 	 0,			/* rightshift */
   1587  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1588  1.1  christos 	 16,			/* bitsize */
   1589  1.1  christos 	 FALSE,			/* pc_relative */
   1590  1.6  christos 	 0,			/* bitpos */
   1591  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1592  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1593  1.1  christos 	 "R_PPC_VLE_SDAREL_LO16D", /* name */
   1594  1.1  christos 	 FALSE,			/* partial_inplace */
   1595  1.1  christos 	 0,			/* src_mask */
   1596  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1597  1.1  christos 	 FALSE),		/* pcrel_offset */
   1598  1.1  christos 
   1599  1.6  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16a format.  */
   1600  1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
   1601  1.1  christos 	 16,			/* rightshift */
   1602  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1603  1.1  christos 	 16,			/* bitsize */
   1604  1.1  christos 	 FALSE,			/* pc_relative */
   1605  1.6  christos 	 0,			/* bitpos */
   1606  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1607  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1608  1.1  christos 	 "R_PPC_VLE_SDAREL_HI16A", /* name */
   1609  1.1  christos 	 FALSE,			/* partial_inplace */
   1610  1.1  christos 	 0,			/* src_mask */
   1611  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1612  1.1  christos 	 FALSE),		/* pcrel_offset */
   1613  1.1  christos 
   1614  1.6  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16d format.  */
   1615  1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
   1616  1.1  christos 	 16,			/* rightshift */
   1617  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1618  1.1  christos 	 16,			/* bitsize */
   1619  1.1  christos 	 FALSE,			/* pc_relative */
   1620  1.6  christos 	 0,			/* bitpos */
   1621  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1622  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1623  1.1  christos 	 "R_PPC_VLE_SDAREL_HI16D", /* name */
   1624  1.1  christos 	 FALSE,			/* partial_inplace */
   1625  1.1  christos 	 0,			/* src_mask */
   1626  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1627  1.1  christos 	 FALSE),		/* pcrel_offset */
   1628  1.1  christos 
   1629  1.6  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16a format.  */
   1630  1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
   1631  1.1  christos 	 16,			/* rightshift */
   1632  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1633  1.1  christos 	 16,			/* bitsize */
   1634  1.1  christos 	 FALSE,			/* pc_relative */
   1635  1.6  christos 	 0,			/* bitpos */
   1636  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1637  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1638  1.1  christos 	 "R_PPC_VLE_SDAREL_HA16A", /* name */
   1639  1.1  christos 	 FALSE,			/* partial_inplace */
   1640  1.1  christos 	 0,			/* src_mask */
   1641  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1642  1.1  christos 	 FALSE),		/* pcrel_offset */
   1643  1.1  christos 
   1644  1.6  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16d format.  */
   1645  1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
   1646  1.1  christos 	 16,			/* rightshift */
   1647  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1648  1.1  christos 	 16,			/* bitsize */
   1649  1.1  christos 	 FALSE,			/* pc_relative */
   1650  1.6  christos 	 0,			/* bitpos */
   1651  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1652  1.6  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1653  1.1  christos 	 "R_PPC_VLE_SDAREL_HA16D", /* name */
   1654  1.1  christos 	 FALSE,			/* partial_inplace */
   1655  1.1  christos 	 0,			/* src_mask */
   1656  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1657  1.1  christos 	 FALSE),		/* pcrel_offset */
   1658  1.1  christos 
   1659  1.1  christos   HOWTO (R_PPC_IRELATIVE,	/* type */
   1660  1.1  christos 	 0,			/* rightshift */
   1661  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1662  1.1  christos 	 32,			/* bitsize */
   1663  1.1  christos 	 FALSE,			/* pc_relative */
   1664  1.3  christos 	 0,			/* bitpos */
   1665  1.6  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1666  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1667  1.1  christos 	 "R_PPC_IRELATIVE",	/* name */
   1668  1.1  christos 	 FALSE,			/* partial_inplace */
   1669  1.1  christos 	 0,			/* src_mask */
   1670  1.1  christos 	 0xffffffff,		/* dst_mask */
   1671  1.1  christos 	 FALSE),		/* pcrel_offset */
   1672  1.1  christos 
   1673  1.1  christos   /* A 16 bit relative relocation.  */
   1674  1.1  christos   HOWTO (R_PPC_REL16,		/* type */
   1675  1.1  christos 	 0,			/* rightshift */
   1676  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1677  1.1  christos 	 16,			/* bitsize */
   1678  1.1  christos 	 TRUE,			/* pc_relative */
   1679  1.3  christos 	 0,			/* bitpos */
   1680  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1681  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1682  1.1  christos 	 "R_PPC_REL16",		/* name */
   1683  1.1  christos 	 FALSE,			/* partial_inplace */
   1684  1.1  christos 	 0,			/* src_mask */
   1685  1.1  christos 	 0xffff,		/* dst_mask */
   1686  1.1  christos 	 TRUE),			/* pcrel_offset */
   1687  1.1  christos 
   1688  1.1  christos   /* A 16 bit relative relocation without overflow.  */
   1689  1.1  christos   HOWTO (R_PPC_REL16_LO,	/* type */
   1690  1.1  christos 	 0,			/* rightshift */
   1691  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1692  1.1  christos 	 16,			/* bitsize */
   1693  1.1  christos 	 TRUE,			/* pc_relative */
   1694  1.1  christos 	 0,			/* bitpos */
   1695  1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1696  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1697  1.1  christos 	 "R_PPC_REL16_LO",	/* name */
   1698  1.1  christos 	 FALSE,			/* partial_inplace */
   1699  1.1  christos 	 0,			/* src_mask */
   1700  1.1  christos 	 0xffff,		/* dst_mask */
   1701  1.1  christos 	 TRUE),			/* pcrel_offset */
   1702  1.1  christos 
   1703  1.1  christos   /* The high order 16 bits of a relative address.  */
   1704  1.1  christos   HOWTO (R_PPC_REL16_HI,	/* type */
   1705  1.1  christos 	 16,			/* rightshift */
   1706  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1707  1.1  christos 	 16,			/* bitsize */
   1708  1.1  christos 	 TRUE,			/* pc_relative */
   1709  1.1  christos 	 0,			/* bitpos */
   1710  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1711  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1712  1.1  christos 	 "R_PPC_REL16_HI",	/* name */
   1713  1.1  christos 	 FALSE,			/* partial_inplace */
   1714  1.1  christos 	 0,			/* src_mask */
   1715  1.1  christos 	 0xffff,		/* dst_mask */
   1716  1.1  christos 	 TRUE),			/* pcrel_offset */
   1717  1.1  christos 
   1718  1.1  christos   /* The high order 16 bits of a relative address, plus 1 if the contents of
   1719  1.1  christos      the low 16 bits, treated as a signed number, is negative.  */
   1720  1.1  christos   HOWTO (R_PPC_REL16_HA,	/* type */
   1721  1.1  christos 	 16,			/* rightshift */
   1722  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1723  1.1  christos 	 16,			/* bitsize */
   1724  1.1  christos 	 TRUE,			/* pc_relative */
   1725  1.1  christos 	 0,			/* bitpos */
   1726  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1727  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1728  1.1  christos 	 "R_PPC_REL16_HA",	/* name */
   1729  1.1  christos 	 FALSE,			/* partial_inplace */
   1730  1.1  christos 	 0,			/* src_mask */
   1731  1.1  christos 	 0xffff,		/* dst_mask */
   1732  1.1  christos 	 TRUE),			/* pcrel_offset */
   1733  1.6  christos 
   1734  1.6  christos   /* Like R_PPC_REL16_HA but for split field in addpcis.  */
   1735  1.6  christos   HOWTO (R_PPC_REL16DX_HA,	/* type */
   1736  1.6  christos 	 16,			/* rightshift */
   1737  1.6  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1738  1.6  christos 	 16,			/* bitsize */
   1739  1.6  christos 	 TRUE,			/* pc_relative */
   1740  1.6  christos 	 0,			/* bitpos */
   1741  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1742  1.6  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1743  1.6  christos 	 "R_PPC_REL16DX_HA",	/* name */
   1744  1.6  christos 	 FALSE,			/* partial_inplace */
   1745  1.6  christos 	 0,			/* src_mask */
   1746  1.6  christos 	 0x1fffc1,		/* dst_mask */
   1747  1.6  christos 	 TRUE),			/* pcrel_offset */
   1748  1.1  christos 
   1749  1.1  christos   /* GNU extension to record C++ vtable hierarchy.  */
   1750  1.1  christos   HOWTO (R_PPC_GNU_VTINHERIT,	/* type */
   1751  1.1  christos 	 0,			/* rightshift */
   1752  1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1753  1.1  christos 	 0,			/* bitsize */
   1754  1.1  christos 	 FALSE,			/* pc_relative */
   1755  1.1  christos 	 0,			/* bitpos */
   1756  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1757  1.1  christos 	 NULL,			/* special_function */
   1758  1.1  christos 	 "R_PPC_GNU_VTINHERIT",	/* name */
   1759  1.1  christos 	 FALSE,			/* partial_inplace */
   1760  1.1  christos 	 0,			/* src_mask */
   1761  1.1  christos 	 0,			/* dst_mask */
   1762  1.1  christos 	 FALSE),		/* pcrel_offset */
   1763  1.1  christos 
   1764  1.1  christos   /* GNU extension to record C++ vtable member usage.  */
   1765  1.1  christos   HOWTO (R_PPC_GNU_VTENTRY,	/* type */
   1766  1.1  christos 	 0,			/* rightshift */
   1767  1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1768  1.1  christos 	 0,			/* bitsize */
   1769  1.1  christos 	 FALSE,			/* pc_relative */
   1770  1.1  christos 	 0,			/* bitpos */
   1771  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1772  1.1  christos 	 NULL,			/* special_function */
   1773  1.1  christos 	 "R_PPC_GNU_VTENTRY",	/* name */
   1774  1.1  christos 	 FALSE,			/* partial_inplace */
   1775  1.1  christos 	 0,			/* src_mask */
   1776  1.1  christos 	 0,			/* dst_mask */
   1777  1.1  christos 	 FALSE),		/* pcrel_offset */
   1778  1.1  christos 
   1779  1.1  christos   /* Phony reloc to handle AIX style TOC entries.  */
   1780  1.1  christos   HOWTO (R_PPC_TOC16,		/* type */
   1781  1.1  christos 	 0,			/* rightshift */
   1782  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1783  1.1  christos 	 16,			/* bitsize */
   1784  1.1  christos 	 FALSE,			/* pc_relative */
   1785  1.1  christos 	 0,			/* bitpos */
   1786  1.6  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1787  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1788  1.1  christos 	 "R_PPC_TOC16",		/* name */
   1789  1.1  christos 	 FALSE,			/* partial_inplace */
   1790  1.1  christos 	 0,			/* src_mask */
   1791  1.1  christos 	 0xffff,		/* dst_mask */
   1792  1.1  christos 	 FALSE),		/* pcrel_offset */
   1793  1.1  christos };
   1794  1.1  christos 
   1795  1.1  christos /* External 32-bit PPC structure for PRPSINFO.  This structure is
   1796  1.1  christos    ABI-defined, thus we choose to use char arrays here in order to
   1797  1.1  christos    avoid dealing with different types in different architectures.
   1798  1.1  christos 
   1799  1.1  christos    The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
   1800  1.1  christos    most non-PPC architectures use `short int'.
   1801  1.1  christos 
   1802  1.1  christos    This structure will ultimately be written in the corefile's note
   1803  1.1  christos    section, as the PRPSINFO.  */
   1804  1.1  christos 
   1805  1.1  christos struct elf_external_ppc_linux_prpsinfo32
   1806  1.1  christos   {
   1807  1.1  christos     char pr_state;			/* Numeric process state.  */
   1808  1.1  christos     char pr_sname;			/* Char for pr_state.  */
   1809  1.1  christos     char pr_zomb;			/* Zombie.  */
   1810  1.1  christos     char pr_nice;			/* Nice val.  */
   1811  1.1  christos     char pr_flag[4];			/* Flags.  */
   1812  1.1  christos     char pr_uid[4];
   1813  1.1  christos     char pr_gid[4];
   1814  1.1  christos     char pr_pid[4];
   1815  1.1  christos     char pr_ppid[4];
   1816  1.1  christos     char pr_pgrp[4];
   1817  1.1  christos     char pr_sid[4];
   1818  1.1  christos     char pr_fname[16];			/* Filename of executable.  */
   1819  1.1  christos     char pr_psargs[80];			/* Initial part of arg list.  */
   1820  1.1  christos   };
   1821  1.6  christos 
   1822  1.6  christos /* Helper function to copy an elf_internal_linux_prpsinfo in host
   1823  1.1  christos    endian to an elf_external_ppc_linux_prpsinfo32 in target endian.  */
   1824  1.6  christos 
   1825  1.6  christos static inline void
   1826  1.6  christos swap_ppc_linux_prpsinfo32_out (bfd *obfd,
   1827  1.6  christos 			       const struct elf_internal_linux_prpsinfo *from,
   1828  1.6  christos 			       struct elf_external_ppc_linux_prpsinfo32 *to)
   1829  1.6  christos {
   1830  1.6  christos   bfd_put_8 (obfd, from->pr_state, &to->pr_state);
   1831  1.6  christos   bfd_put_8 (obfd, from->pr_sname, &to->pr_sname);
   1832  1.6  christos   bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb);
   1833  1.6  christos   bfd_put_8 (obfd, from->pr_nice, &to->pr_nice);
   1834  1.6  christos   bfd_put_32 (obfd, from->pr_flag, to->pr_flag);
   1835  1.6  christos   bfd_put_32 (obfd, from->pr_uid, to->pr_uid);
   1836  1.6  christos   bfd_put_32 (obfd, from->pr_gid, to->pr_gid);
   1837  1.6  christos   bfd_put_32 (obfd, from->pr_pid, to->pr_pid);
   1838  1.6  christos   bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid);
   1839  1.6  christos   bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp);
   1840  1.6  christos   bfd_put_32 (obfd, from->pr_sid, to->pr_sid);
   1841  1.6  christos   strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname));
   1842  1.6  christos   strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs));
   1843  1.1  christos }
   1844  1.1  christos 
   1845  1.1  christos /* Initialize the ppc_elf_howto_table, so that linear accesses can be done.  */
   1847  1.1  christos 
   1848  1.1  christos static void
   1849  1.1  christos ppc_elf_howto_init (void)
   1850  1.1  christos {
   1851  1.1  christos   unsigned int i, type;
   1852  1.1  christos 
   1853  1.1  christos   for (i = 0;
   1854  1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   1855  1.1  christos        i++)
   1856  1.1  christos     {
   1857  1.1  christos       type = ppc_elf_howto_raw[i].type;
   1858  1.1  christos       if (type >= (sizeof (ppc_elf_howto_table)
   1859  1.1  christos 		   / sizeof (ppc_elf_howto_table[0])))
   1860  1.1  christos 	abort ();
   1861  1.1  christos       ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
   1862  1.1  christos     }
   1863  1.1  christos }
   1864  1.1  christos 
   1865  1.1  christos static reloc_howto_type *
   1866  1.1  christos ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   1867  1.1  christos 			   bfd_reloc_code_real_type code)
   1868  1.1  christos {
   1869  1.1  christos   enum elf_ppc_reloc_type r;
   1870  1.1  christos 
   1871  1.1  christos   /* Initialize howto table if not already done.  */
   1872  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   1873  1.1  christos     ppc_elf_howto_init ();
   1874  1.1  christos 
   1875  1.1  christos   switch (code)
   1876  1.1  christos     {
   1877  1.1  christos     default:
   1878  1.1  christos       return NULL;
   1879  1.1  christos 
   1880  1.1  christos     case BFD_RELOC_NONE:		r = R_PPC_NONE;			break;
   1881  1.1  christos     case BFD_RELOC_32:			r = R_PPC_ADDR32;		break;
   1882  1.1  christos     case BFD_RELOC_PPC_BA26:		r = R_PPC_ADDR24;		break;
   1883  1.1  christos     case BFD_RELOC_PPC64_ADDR16_DS:
   1884  1.1  christos     case BFD_RELOC_16:			r = R_PPC_ADDR16;		break;
   1885  1.1  christos     case BFD_RELOC_PPC64_ADDR16_LO_DS:
   1886  1.1  christos     case BFD_RELOC_LO16:		r = R_PPC_ADDR16_LO;		break;
   1887  1.1  christos     case BFD_RELOC_HI16:		r = R_PPC_ADDR16_HI;		break;
   1888  1.1  christos     case BFD_RELOC_HI16_S:		r = R_PPC_ADDR16_HA;		break;
   1889  1.1  christos     case BFD_RELOC_PPC_BA16:		r = R_PPC_ADDR14;		break;
   1890  1.1  christos     case BFD_RELOC_PPC_BA16_BRTAKEN:	r = R_PPC_ADDR14_BRTAKEN;	break;
   1891  1.1  christos     case BFD_RELOC_PPC_BA16_BRNTAKEN:	r = R_PPC_ADDR14_BRNTAKEN;	break;
   1892  1.1  christos     case BFD_RELOC_PPC_B26:		r = R_PPC_REL24;		break;
   1893  1.1  christos     case BFD_RELOC_PPC_B16:		r = R_PPC_REL14;		break;
   1894  1.1  christos     case BFD_RELOC_PPC_B16_BRTAKEN:	r = R_PPC_REL14_BRTAKEN;	break;
   1895  1.1  christos     case BFD_RELOC_PPC_B16_BRNTAKEN:	r = R_PPC_REL14_BRNTAKEN;	break;
   1896  1.1  christos     case BFD_RELOC_PPC64_GOT16_DS:
   1897  1.1  christos     case BFD_RELOC_16_GOTOFF:		r = R_PPC_GOT16;		break;
   1898  1.1  christos     case BFD_RELOC_PPC64_GOT16_LO_DS:
   1899  1.1  christos     case BFD_RELOC_LO16_GOTOFF:		r = R_PPC_GOT16_LO;		break;
   1900  1.1  christos     case BFD_RELOC_HI16_GOTOFF:		r = R_PPC_GOT16_HI;		break;
   1901  1.1  christos     case BFD_RELOC_HI16_S_GOTOFF:	r = R_PPC_GOT16_HA;		break;
   1902  1.1  christos     case BFD_RELOC_24_PLT_PCREL:	r = R_PPC_PLTREL24;		break;
   1903  1.1  christos     case BFD_RELOC_PPC_COPY:		r = R_PPC_COPY;			break;
   1904  1.1  christos     case BFD_RELOC_PPC_GLOB_DAT:	r = R_PPC_GLOB_DAT;		break;
   1905  1.1  christos     case BFD_RELOC_PPC_LOCAL24PC:	r = R_PPC_LOCAL24PC;		break;
   1906  1.1  christos     case BFD_RELOC_32_PCREL:		r = R_PPC_REL32;		break;
   1907  1.1  christos     case BFD_RELOC_32_PLTOFF:		r = R_PPC_PLT32;		break;
   1908  1.1  christos     case BFD_RELOC_32_PLT_PCREL:	r = R_PPC_PLTREL32;		break;
   1909  1.1  christos     case BFD_RELOC_PPC64_PLT16_LO_DS:
   1910  1.1  christos     case BFD_RELOC_LO16_PLTOFF:		r = R_PPC_PLT16_LO;		break;
   1911  1.1  christos     case BFD_RELOC_HI16_PLTOFF:		r = R_PPC_PLT16_HI;		break;
   1912  1.1  christos     case BFD_RELOC_HI16_S_PLTOFF:	r = R_PPC_PLT16_HA;		break;
   1913  1.1  christos     case BFD_RELOC_GPREL16:		r = R_PPC_SDAREL16;		break;
   1914  1.1  christos     case BFD_RELOC_PPC64_SECTOFF_DS:
   1915  1.1  christos     case BFD_RELOC_16_BASEREL:		r = R_PPC_SECTOFF;		break;
   1916  1.1  christos     case BFD_RELOC_PPC64_SECTOFF_LO_DS:
   1917  1.1  christos     case BFD_RELOC_LO16_BASEREL:	r = R_PPC_SECTOFF_LO;		break;
   1918  1.1  christos     case BFD_RELOC_HI16_BASEREL:	r = R_PPC_SECTOFF_HI;		break;
   1919  1.1  christos     case BFD_RELOC_HI16_S_BASEREL:	r = R_PPC_SECTOFF_HA;		break;
   1920  1.1  christos     case BFD_RELOC_CTOR:		r = R_PPC_ADDR32;		break;
   1921  1.1  christos     case BFD_RELOC_PPC64_TOC16_DS:
   1922  1.1  christos     case BFD_RELOC_PPC_TOC16:		r = R_PPC_TOC16;		break;
   1923  1.1  christos     case BFD_RELOC_PPC_TLS:		r = R_PPC_TLS;			break;
   1924  1.1  christos     case BFD_RELOC_PPC_TLSGD:		r = R_PPC_TLSGD;		break;
   1925  1.1  christos     case BFD_RELOC_PPC_TLSLD:		r = R_PPC_TLSLD;		break;
   1926  1.1  christos     case BFD_RELOC_PPC_DTPMOD:		r = R_PPC_DTPMOD32;		break;
   1927  1.1  christos     case BFD_RELOC_PPC64_TPREL16_DS:
   1928  1.1  christos     case BFD_RELOC_PPC_TPREL16:		r = R_PPC_TPREL16;		break;
   1929  1.1  christos     case BFD_RELOC_PPC64_TPREL16_LO_DS:
   1930  1.1  christos     case BFD_RELOC_PPC_TPREL16_LO:	r = R_PPC_TPREL16_LO;		break;
   1931  1.1  christos     case BFD_RELOC_PPC_TPREL16_HI:	r = R_PPC_TPREL16_HI;		break;
   1932  1.1  christos     case BFD_RELOC_PPC_TPREL16_HA:	r = R_PPC_TPREL16_HA;		break;
   1933  1.1  christos     case BFD_RELOC_PPC_TPREL:		r = R_PPC_TPREL32;		break;
   1934  1.1  christos     case BFD_RELOC_PPC64_DTPREL16_DS:
   1935  1.1  christos     case BFD_RELOC_PPC_DTPREL16:	r = R_PPC_DTPREL16;		break;
   1936  1.1  christos     case BFD_RELOC_PPC64_DTPREL16_LO_DS:
   1937  1.1  christos     case BFD_RELOC_PPC_DTPREL16_LO:	r = R_PPC_DTPREL16_LO;		break;
   1938  1.1  christos     case BFD_RELOC_PPC_DTPREL16_HI:	r = R_PPC_DTPREL16_HI;		break;
   1939  1.1  christos     case BFD_RELOC_PPC_DTPREL16_HA:	r = R_PPC_DTPREL16_HA;		break;
   1940  1.1  christos     case BFD_RELOC_PPC_DTPREL:		r = R_PPC_DTPREL32;		break;
   1941  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16:	r = R_PPC_GOT_TLSGD16;		break;
   1942  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_LO:	r = R_PPC_GOT_TLSGD16_LO;	break;
   1943  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HI:	r = R_PPC_GOT_TLSGD16_HI;	break;
   1944  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HA:	r = R_PPC_GOT_TLSGD16_HA;	break;
   1945  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16:	r = R_PPC_GOT_TLSLD16;		break;
   1946  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_LO:	r = R_PPC_GOT_TLSLD16_LO;	break;
   1947  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HI:	r = R_PPC_GOT_TLSLD16_HI;	break;
   1948  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HA:	r = R_PPC_GOT_TLSLD16_HA;	break;
   1949  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16:	r = R_PPC_GOT_TPREL16;		break;
   1950  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_LO:	r = R_PPC_GOT_TPREL16_LO;	break;
   1951  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HI:	r = R_PPC_GOT_TPREL16_HI;	break;
   1952  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HA:	r = R_PPC_GOT_TPREL16_HA;	break;
   1953  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16:	r = R_PPC_GOT_DTPREL16;		break;
   1954  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_LO:	r = R_PPC_GOT_DTPREL16_LO;	break;
   1955  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HI:	r = R_PPC_GOT_DTPREL16_HI;	break;
   1956  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HA:	r = R_PPC_GOT_DTPREL16_HA;	break;
   1957  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR32:	r = R_PPC_EMB_NADDR32;		break;
   1958  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16:	r = R_PPC_EMB_NADDR16;		break;
   1959  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_LO:	r = R_PPC_EMB_NADDR16_LO;	break;
   1960  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HI:	r = R_PPC_EMB_NADDR16_HI;	break;
   1961  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HA:	r = R_PPC_EMB_NADDR16_HA;	break;
   1962  1.1  christos     case BFD_RELOC_PPC_EMB_SDAI16:	r = R_PPC_EMB_SDAI16;		break;
   1963  1.1  christos     case BFD_RELOC_PPC_EMB_SDA2I16:	r = R_PPC_EMB_SDA2I16;		break;
   1964  1.1  christos     case BFD_RELOC_PPC_EMB_SDA2REL:	r = R_PPC_EMB_SDA2REL;		break;
   1965  1.1  christos     case BFD_RELOC_PPC_EMB_SDA21:	r = R_PPC_EMB_SDA21;		break;
   1966  1.1  christos     case BFD_RELOC_PPC_EMB_MRKREF:	r = R_PPC_EMB_MRKREF;		break;
   1967  1.1  christos     case BFD_RELOC_PPC_EMB_RELSEC16:	r = R_PPC_EMB_RELSEC16;		break;
   1968  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_LO:	r = R_PPC_EMB_RELST_LO;		break;
   1969  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HI:	r = R_PPC_EMB_RELST_HI;		break;
   1970  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HA:	r = R_PPC_EMB_RELST_HA;		break;
   1971  1.1  christos     case BFD_RELOC_PPC_EMB_BIT_FLD:	r = R_PPC_EMB_BIT_FLD;		break;
   1972  1.1  christos     case BFD_RELOC_PPC_EMB_RELSDA:	r = R_PPC_EMB_RELSDA;		break;
   1973  1.1  christos     case BFD_RELOC_PPC_VLE_REL8:	r = R_PPC_VLE_REL8;		break;
   1974  1.1  christos     case BFD_RELOC_PPC_VLE_REL15:	r = R_PPC_VLE_REL15;		break;
   1975  1.1  christos     case BFD_RELOC_PPC_VLE_REL24:	r = R_PPC_VLE_REL24;		break;
   1976  1.1  christos     case BFD_RELOC_PPC_VLE_LO16A:	r = R_PPC_VLE_LO16A;		break;
   1977  1.1  christos     case BFD_RELOC_PPC_VLE_LO16D:	r = R_PPC_VLE_LO16D;		break;
   1978  1.1  christos     case BFD_RELOC_PPC_VLE_HI16A:	r = R_PPC_VLE_HI16A;		break;
   1979  1.1  christos     case BFD_RELOC_PPC_VLE_HI16D:	r = R_PPC_VLE_HI16D;		break;
   1980  1.1  christos     case BFD_RELOC_PPC_VLE_HA16A:	r = R_PPC_VLE_HA16A;		break;
   1981  1.1  christos     case BFD_RELOC_PPC_VLE_HA16D:	r = R_PPC_VLE_HA16D;		break;
   1982  1.1  christos     case BFD_RELOC_PPC_VLE_SDA21:	r = R_PPC_VLE_SDA21;		break;
   1983  1.1  christos     case BFD_RELOC_PPC_VLE_SDA21_LO:	r = R_PPC_VLE_SDA21_LO;		break;
   1984  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
   1985  1.1  christos       r = R_PPC_VLE_SDAREL_LO16A;
   1986  1.1  christos       break;
   1987  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
   1988  1.1  christos       r = R_PPC_VLE_SDAREL_LO16D;
   1989  1.1  christos       break;
   1990  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
   1991  1.1  christos       r = R_PPC_VLE_SDAREL_HI16A;
   1992  1.1  christos       break;
   1993  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
   1994  1.1  christos       r = R_PPC_VLE_SDAREL_HI16D;
   1995  1.1  christos       break;
   1996  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
   1997  1.1  christos       r = R_PPC_VLE_SDAREL_HA16A;
   1998  1.1  christos       break;
   1999  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
   2000  1.1  christos       r = R_PPC_VLE_SDAREL_HA16D;
   2001  1.1  christos       break;
   2002  1.1  christos     case BFD_RELOC_16_PCREL:		r = R_PPC_REL16;		break;
   2003  1.1  christos     case BFD_RELOC_LO16_PCREL:		r = R_PPC_REL16_LO;		break;
   2004  1.6  christos     case BFD_RELOC_HI16_PCREL:		r = R_PPC_REL16_HI;		break;
   2005  1.1  christos     case BFD_RELOC_HI16_S_PCREL:	r = R_PPC_REL16_HA;		break;
   2006  1.1  christos     case BFD_RELOC_PPC_REL16DX_HA:	r = R_PPC_REL16DX_HA;		break;
   2007  1.1  christos     case BFD_RELOC_VTABLE_INHERIT:	r = R_PPC_GNU_VTINHERIT;	break;
   2008  1.1  christos     case BFD_RELOC_VTABLE_ENTRY:	r = R_PPC_GNU_VTENTRY;		break;
   2009  1.1  christos     }
   2010  1.1  christos 
   2011  1.1  christos   return ppc_elf_howto_table[r];
   2012  1.1  christos };
   2013  1.1  christos 
   2014  1.1  christos static reloc_howto_type *
   2015  1.1  christos ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   2016  1.1  christos 			   const char *r_name)
   2017  1.1  christos {
   2018  1.1  christos   unsigned int i;
   2019  1.1  christos 
   2020  1.1  christos   for (i = 0;
   2021  1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   2022  1.1  christos        i++)
   2023  1.1  christos     if (ppc_elf_howto_raw[i].name != NULL
   2024  1.1  christos 	&& strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
   2025  1.1  christos       return &ppc_elf_howto_raw[i];
   2026  1.1  christos 
   2027  1.1  christos   return NULL;
   2028  1.1  christos }
   2029  1.1  christos 
   2030  1.1  christos /* Set the howto pointer for a PowerPC ELF reloc.  */
   2031  1.1  christos 
   2032  1.1  christos static void
   2033  1.1  christos ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
   2034  1.1  christos 		       arelent *cache_ptr,
   2035  1.5  christos 		       Elf_Internal_Rela *dst)
   2036  1.5  christos {
   2037  1.1  christos   unsigned int r_type;
   2038  1.1  christos 
   2039  1.1  christos   /* Initialize howto table if not already done.  */
   2040  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   2041  1.5  christos     ppc_elf_howto_init ();
   2042  1.5  christos 
   2043  1.5  christos   r_type = ELF32_R_TYPE (dst->r_info);
   2044  1.5  christos   if (r_type >= R_PPC_max)
   2045  1.5  christos     {
   2046  1.5  christos       (*_bfd_error_handler) (_("%B: unrecognised PPC reloc number: %d"),
   2047  1.5  christos 			     abfd, r_type);
   2048  1.5  christos       bfd_set_error (bfd_error_bad_value);
   2049  1.5  christos       r_type = R_PPC_NONE;
   2050  1.1  christos     }
   2051  1.1  christos   cache_ptr->howto = ppc_elf_howto_table[r_type];
   2052  1.1  christos 
   2053  1.1  christos   /* Just because the above assert didn't trigger doesn't mean that
   2054  1.1  christos      ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation.  */
   2055  1.1  christos   if (!cache_ptr->howto)
   2056  1.5  christos     {
   2057  1.1  christos       (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
   2058  1.1  christos                              abfd, r_type);
   2059  1.1  christos       bfd_set_error (bfd_error_bad_value);
   2060  1.1  christos 
   2061  1.1  christos       cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
   2062  1.1  christos     }
   2063  1.1  christos }
   2064  1.1  christos 
   2065  1.1  christos /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs.  */
   2066  1.1  christos 
   2067  1.1  christos static bfd_reloc_status_type
   2068  1.1  christos ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
   2069  1.1  christos 			 arelent *reloc_entry,
   2070  1.1  christos 			 asymbol *symbol,
   2071  1.1  christos 			 void *data ATTRIBUTE_UNUSED,
   2072  1.1  christos 			 asection *input_section,
   2073  1.1  christos 			 bfd *output_bfd,
   2074  1.6  christos 			 char **error_message ATTRIBUTE_UNUSED)
   2075  1.6  christos {
   2076  1.6  christos   enum elf_ppc_reloc_type r_type;
   2077  1.6  christos   long insn;
   2078  1.1  christos   bfd_size_type octets;
   2079  1.1  christos   bfd_vma value;
   2080  1.1  christos 
   2081  1.1  christos   if (output_bfd != NULL)
   2082  1.1  christos     {
   2083  1.1  christos       reloc_entry->address += input_section->output_offset;
   2084  1.1  christos       return bfd_reloc_ok;
   2085  1.6  christos     }
   2086  1.6  christos 
   2087  1.6  christos   reloc_entry->addend += 0x8000;
   2088  1.6  christos   r_type = reloc_entry->howto->type;
   2089  1.6  christos   if (r_type != R_PPC_REL16DX_HA)
   2090  1.6  christos     return bfd_reloc_continue;
   2091  1.6  christos 
   2092  1.6  christos   value = 0;
   2093  1.6  christos   if (!bfd_is_com_section (symbol->section))
   2094  1.6  christos     value = symbol->value;
   2095  1.6  christos   value += (reloc_entry->addend
   2096  1.6  christos 	    + symbol->section->output_offset
   2097  1.6  christos 	    + symbol->section->output_section->vma);
   2098  1.6  christos   value -= (reloc_entry->address
   2099  1.6  christos 	    + input_section->output_offset
   2100  1.6  christos 	    + input_section->output_section->vma);
   2101  1.6  christos   value >>= 16;
   2102  1.6  christos 
   2103  1.6  christos   octets = reloc_entry->address * bfd_octets_per_byte (abfd);
   2104  1.6  christos   insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
   2105  1.6  christos   insn &= ~0x1fffc1;
   2106  1.6  christos   insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
   2107  1.1  christos   bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
   2108  1.1  christos   return bfd_reloc_ok;
   2109  1.1  christos }
   2110  1.1  christos 
   2111  1.1  christos static bfd_reloc_status_type
   2112  1.1  christos ppc_elf_unhandled_reloc (bfd *abfd,
   2113  1.1  christos 			 arelent *reloc_entry,
   2114  1.1  christos 			 asymbol *symbol,
   2115  1.1  christos 			 void *data,
   2116  1.1  christos 			 asection *input_section,
   2117  1.1  christos 			 bfd *output_bfd,
   2118  1.1  christos 			 char **error_message)
   2119  1.1  christos {
   2120  1.1  christos   /* If this is a relocatable link (output_bfd test tells us), just
   2121  1.1  christos      call the generic function.  Any adjustment will be done at final
   2122  1.1  christos      link time.  */
   2123  1.1  christos   if (output_bfd != NULL)
   2124  1.1  christos     return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
   2125  1.1  christos 				  input_section, output_bfd, error_message);
   2126  1.1  christos 
   2127  1.1  christos   if (error_message != NULL)
   2128  1.1  christos     {
   2129  1.1  christos       static char buf[60];
   2130  1.1  christos       sprintf (buf, _("generic linker can't handle %s"),
   2131  1.1  christos 	       reloc_entry->howto->name);
   2132  1.1  christos       *error_message = buf;
   2133  1.1  christos     }
   2134  1.1  christos   return bfd_reloc_dangerous;
   2135  1.1  christos }
   2136  1.1  christos 
   2137  1.1  christos /* Sections created by the linker.  */
   2139  1.1  christos 
   2140  1.1  christos typedef struct elf_linker_section
   2141  1.1  christos {
   2142  1.1  christos   /* Pointer to the bfd section.  */
   2143  1.1  christos   asection *section;
   2144  1.1  christos   /* Section name.  */
   2145  1.1  christos   const char *name;
   2146  1.1  christos   /* Associated bss section name.  */
   2147  1.1  christos   const char *bss_name;
   2148  1.1  christos   /* Associated symbol name.  */
   2149  1.1  christos   const char *sym_name;
   2150  1.1  christos   /* Associated symbol.  */
   2151  1.1  christos   struct elf_link_hash_entry *sym;
   2152  1.1  christos } elf_linker_section_t;
   2153  1.1  christos 
   2154  1.1  christos /* Linked list of allocated pointer entries.  This hangs off of the
   2155  1.1  christos    symbol lists, and provides allows us to return different pointers,
   2156  1.1  christos    based on different addend's.  */
   2157  1.1  christos 
   2158  1.1  christos typedef struct elf_linker_section_pointers
   2159  1.1  christos {
   2160  1.1  christos   /* next allocated pointer for this symbol */
   2161  1.1  christos   struct elf_linker_section_pointers *next;
   2162  1.1  christos   /* offset of pointer from beginning of section */
   2163  1.1  christos   bfd_vma offset;
   2164  1.1  christos   /* addend used */
   2165  1.1  christos   bfd_vma addend;
   2166  1.1  christos   /* which linker section this is */
   2167  1.1  christos   elf_linker_section_t *lsect;
   2168  1.1  christos } elf_linker_section_pointers_t;
   2169  1.1  christos 
   2170  1.1  christos struct ppc_elf_obj_tdata
   2171  1.1  christos {
   2172  1.1  christos   struct elf_obj_tdata elf;
   2173  1.1  christos 
   2174  1.1  christos   /* A mapping from local symbols to offsets into the various linker
   2175  1.1  christos      sections added.  This is index by the symbol index.  */
   2176  1.1  christos   elf_linker_section_pointers_t **linker_section_pointers;
   2177  1.1  christos 
   2178  1.1  christos   /* Flags used to auto-detect plt type.  */
   2179  1.1  christos   unsigned int makes_plt_call : 1;
   2180  1.1  christos   unsigned int has_rel16 : 1;
   2181  1.1  christos };
   2182  1.1  christos 
   2183  1.1  christos #define ppc_elf_tdata(bfd) \
   2184  1.1  christos   ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
   2185  1.1  christos 
   2186  1.1  christos #define elf_local_ptr_offsets(bfd) \
   2187  1.1  christos   (ppc_elf_tdata (bfd)->linker_section_pointers)
   2188  1.1  christos 
   2189  1.1  christos #define is_ppc_elf(bfd) \
   2190  1.1  christos   (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
   2191  1.1  christos    && elf_object_id (bfd) == PPC32_ELF_DATA)
   2192  1.1  christos 
   2193  1.1  christos /* Override the generic function because we store some extras.  */
   2194  1.1  christos 
   2195  1.1  christos static bfd_boolean
   2196  1.1  christos ppc_elf_mkobject (bfd *abfd)
   2197  1.1  christos {
   2198  1.1  christos   return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
   2199  1.6  christos 				  PPC32_ELF_DATA);
   2200  1.6  christos }
   2201  1.6  christos 
   2202  1.6  christos /* When defaulting arch/mach, decode apuinfo to find a better match.  */
   2203  1.6  christos 
   2204  1.6  christos bfd_boolean
   2205  1.6  christos _bfd_elf_ppc_set_arch (bfd *abfd)
   2206  1.6  christos {
   2207  1.6  christos   unsigned long mach = 0;
   2208  1.6  christos   asection *s;
   2209  1.6  christos   unsigned char *contents;
   2210  1.6  christos 
   2211  1.6  christos   if (abfd->arch_info->bits_per_word == 32
   2212  1.6  christos       && bfd_big_endian (abfd))
   2213  1.6  christos     {
   2214  1.6  christos 
   2215  1.6  christos       for (s = abfd->sections; s != NULL; s = s->next)
   2216  1.6  christos 	if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
   2217  1.6  christos 	  break;
   2218  1.6  christos       if (s != NULL)
   2219  1.6  christos 	mach = bfd_mach_ppc_vle;
   2220  1.6  christos     }
   2221  1.6  christos 
   2222  1.6  christos   if (mach == 0)
   2223  1.6  christos     {
   2224  1.6  christos       s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2225  1.6  christos       if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
   2226  1.6  christos 	{
   2227  1.6  christos 	  unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
   2228  1.6  christos 	  unsigned int i;
   2229  1.6  christos 
   2230  1.6  christos 	  for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
   2231  1.6  christos 	    {
   2232  1.6  christos 	      unsigned int val = bfd_get_32 (abfd, contents + i);
   2233  1.6  christos 	      switch (val >> 16)
   2234  1.6  christos 		{
   2235  1.6  christos 		case PPC_APUINFO_PMR:
   2236  1.6  christos 		case PPC_APUINFO_RFMCI:
   2237  1.6  christos 		  if (mach == 0)
   2238  1.6  christos 		    mach = bfd_mach_ppc_titan;
   2239  1.6  christos 		  break;
   2240  1.6  christos 
   2241  1.6  christos 		case PPC_APUINFO_ISEL:
   2242  1.6  christos 		case PPC_APUINFO_CACHELCK:
   2243  1.6  christos 		  if (mach == bfd_mach_ppc_titan)
   2244  1.6  christos 		    mach = bfd_mach_ppc_e500mc;
   2245  1.6  christos 		  break;
   2246  1.6  christos 
   2247  1.6  christos 		case PPC_APUINFO_SPE:
   2248  1.6  christos 		case PPC_APUINFO_EFS:
   2249  1.6  christos 		case PPC_APUINFO_BRLOCK:
   2250  1.6  christos 		  if (mach != bfd_mach_ppc_vle)
   2251  1.6  christos 		    mach = bfd_mach_ppc_e500;
   2252  1.6  christos 
   2253  1.6  christos 		case PPC_APUINFO_VLE:
   2254  1.6  christos 		  mach = bfd_mach_ppc_vle;
   2255  1.6  christos 		  break;
   2256  1.6  christos 
   2257  1.6  christos 		default:
   2258  1.6  christos 		  mach = -1ul;
   2259  1.6  christos 		}
   2260  1.6  christos 	    }
   2261  1.6  christos 	  free (contents);
   2262  1.6  christos 	}
   2263  1.6  christos     }
   2264  1.6  christos 
   2265  1.6  christos   if (mach != 0 && mach != -1ul)
   2266  1.6  christos     {
   2267  1.6  christos       const bfd_arch_info_type *arch;
   2268  1.6  christos 
   2269  1.6  christos       for (arch = abfd->arch_info->next; arch; arch = arch->next)
   2270  1.6  christos 	if (arch->mach == mach)
   2271  1.6  christos 	  {
   2272  1.6  christos 	    abfd->arch_info = arch;
   2273  1.6  christos 	    break;
   2274  1.6  christos 	  }
   2275  1.6  christos     }
   2276  1.1  christos   return TRUE;
   2277  1.6  christos }
   2278  1.1  christos 
   2279  1.1  christos /* Fix bad default arch selected for a 32 bit input bfd when the
   2280  1.1  christos    default is 64 bit.  Also select arch based on apuinfo.  */
   2281  1.1  christos 
   2282  1.6  christos static bfd_boolean
   2283  1.6  christos ppc_elf_object_p (bfd *abfd)
   2284  1.6  christos {
   2285  1.6  christos   if (!abfd->arch_info->the_default)
   2286  1.1  christos     return TRUE;
   2287  1.1  christos 
   2288  1.1  christos   if (abfd->arch_info->bits_per_word == 64)
   2289  1.1  christos     {
   2290  1.1  christos       Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
   2291  1.1  christos 
   2292  1.1  christos       if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
   2293  1.1  christos 	{
   2294  1.1  christos 	  /* Relies on arch after 64 bit default being 32 bit default.  */
   2295  1.1  christos 	  abfd->arch_info = abfd->arch_info->next;
   2296  1.6  christos 	  BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
   2297  1.1  christos 	}
   2298  1.1  christos     }
   2299  1.1  christos   return _bfd_elf_ppc_set_arch (abfd);
   2300  1.1  christos }
   2301  1.1  christos 
   2302  1.1  christos /* Function to set whether a module needs the -mrelocatable bit set.  */
   2303  1.1  christos 
   2304  1.1  christos static bfd_boolean
   2305  1.1  christos ppc_elf_set_private_flags (bfd *abfd, flagword flags)
   2306  1.1  christos {
   2307  1.1  christos   BFD_ASSERT (!elf_flags_init (abfd)
   2308  1.1  christos 	      || elf_elfheader (abfd)->e_flags == flags);
   2309  1.1  christos 
   2310  1.1  christos   elf_elfheader (abfd)->e_flags = flags;
   2311  1.1  christos   elf_flags_init (abfd) = TRUE;
   2312  1.1  christos   return TRUE;
   2313  1.1  christos }
   2314  1.1  christos 
   2315  1.1  christos /* Support for core dump NOTE sections.  */
   2316  1.1  christos 
   2317  1.1  christos static bfd_boolean
   2318  1.1  christos ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
   2319  1.1  christos {
   2320  1.1  christos   int offset;
   2321  1.1  christos   unsigned int size;
   2322  1.1  christos 
   2323  1.1  christos   switch (note->descsz)
   2324  1.1  christos     {
   2325  1.1  christos     default:
   2326  1.1  christos       return FALSE;
   2327  1.1  christos 
   2328  1.1  christos     case 268:		/* Linux/PPC.  */
   2329  1.1  christos       /* pr_cursig */
   2330  1.1  christos       elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
   2331  1.1  christos 
   2332  1.1  christos       /* pr_pid */
   2333  1.1  christos       elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
   2334  1.1  christos 
   2335  1.1  christos       /* pr_reg */
   2336  1.1  christos       offset = 72;
   2337  1.1  christos       size = 192;
   2338  1.1  christos 
   2339  1.1  christos       break;
   2340  1.1  christos     }
   2341  1.1  christos 
   2342  1.1  christos   /* Make a ".reg/999" section.  */
   2343  1.1  christos   return _bfd_elfcore_make_pseudosection (abfd, ".reg",
   2344  1.1  christos 					  size, note->descpos + offset);
   2345  1.1  christos }
   2346  1.1  christos 
   2347  1.1  christos static bfd_boolean
   2348  1.1  christos ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
   2349  1.1  christos {
   2350  1.1  christos   switch (note->descsz)
   2351  1.1  christos     {
   2352  1.1  christos     default:
   2353  1.1  christos       return FALSE;
   2354  1.1  christos 
   2355  1.1  christos     case 128:		/* Linux/PPC elf_prpsinfo.  */
   2356  1.1  christos       elf_tdata (abfd)->core->pid
   2357  1.1  christos 	= bfd_get_32 (abfd, note->descdata + 16);
   2358  1.1  christos       elf_tdata (abfd)->core->program
   2359  1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
   2360  1.1  christos       elf_tdata (abfd)->core->command
   2361  1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
   2362  1.1  christos     }
   2363  1.1  christos 
   2364  1.1  christos   /* Note that for some reason, a spurious space is tacked
   2365  1.1  christos      onto the end of the args in some (at least one anyway)
   2366  1.1  christos      implementations, so strip it off if it exists.  */
   2367  1.1  christos 
   2368  1.1  christos   {
   2369  1.1  christos     char *command = elf_tdata (abfd)->core->command;
   2370  1.1  christos     int n = strlen (command);
   2371  1.1  christos 
   2372  1.1  christos     if (0 < n && command[n - 1] == ' ')
   2373  1.1  christos       command[n - 1] = '\0';
   2374  1.1  christos   }
   2375  1.1  christos 
   2376  1.1  christos   return TRUE;
   2377  1.6  christos }
   2378  1.6  christos 
   2379  1.6  christos char *
   2380  1.6  christos elfcore_write_ppc_linux_prpsinfo32
   2381  1.6  christos   (bfd *abfd,
   2382  1.1  christos    char *buf,
   2383  1.1  christos    int *bufsiz,
   2384  1.1  christos    const struct elf_internal_linux_prpsinfo *prpsinfo)
   2385  1.6  christos {
   2386  1.1  christos   struct elf_external_ppc_linux_prpsinfo32 data;
   2387  1.1  christos 
   2388  1.1  christos   swap_ppc_linux_prpsinfo32_out (abfd, prpsinfo, &data);
   2389  1.1  christos   return elfcore_write_note (abfd, buf, bufsiz,
   2390  1.1  christos 			     "CORE", NT_PRPSINFO, &data, sizeof (data));
   2391  1.1  christos }
   2392  1.1  christos 
   2393  1.1  christos static char *
   2394  1.1  christos ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
   2395  1.1  christos {
   2396  1.1  christos   switch (note_type)
   2397  1.1  christos     {
   2398  1.1  christos     default:
   2399  1.1  christos       return NULL;
   2400  1.1  christos 
   2401  1.1  christos     case NT_PRPSINFO:
   2402  1.1  christos       {
   2403  1.1  christos 	char data[128];
   2404  1.1  christos 	va_list ap;
   2405  1.1  christos 
   2406  1.1  christos 	va_start (ap, note_type);
   2407  1.1  christos 	memset (data, 0, sizeof (data));
   2408  1.1  christos 	strncpy (data + 32, va_arg (ap, const char *), 16);
   2409  1.1  christos 	strncpy (data + 48, va_arg (ap, const char *), 80);
   2410  1.1  christos 	va_end (ap);
   2411  1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2412  1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2413  1.1  christos       }
   2414  1.1  christos 
   2415  1.1  christos     case NT_PRSTATUS:
   2416  1.1  christos       {
   2417  1.1  christos 	char data[268];
   2418  1.1  christos 	va_list ap;
   2419  1.1  christos 	long pid;
   2420  1.1  christos 	int cursig;
   2421  1.1  christos 	const void *greg;
   2422  1.1  christos 
   2423  1.1  christos 	va_start (ap, note_type);
   2424  1.1  christos 	memset (data, 0, 72);
   2425  1.1  christos 	pid = va_arg (ap, long);
   2426  1.1  christos 	bfd_put_32 (abfd, pid, data + 24);
   2427  1.1  christos 	cursig = va_arg (ap, int);
   2428  1.1  christos 	bfd_put_16 (abfd, cursig, data + 12);
   2429  1.1  christos 	greg = va_arg (ap, const void *);
   2430  1.1  christos 	memcpy (data + 72, greg, 192);
   2431  1.1  christos 	memset (data + 264, 0, 4);
   2432  1.1  christos 	va_end (ap);
   2433  1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2434  1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2435  1.1  christos       }
   2436  1.1  christos     }
   2437  1.1  christos }
   2438  1.1  christos 
   2439  1.1  christos static flagword
   2440  1.1  christos ppc_elf_lookup_section_flags (char *flag_name)
   2441  1.1  christos {
   2442  1.1  christos 
   2443  1.1  christos   if (!strcmp (flag_name, "SHF_PPC_VLE"))
   2444  1.1  christos     return SHF_PPC_VLE;
   2445  1.1  christos 
   2446  1.1  christos   return 0;
   2447  1.1  christos }
   2448  1.1  christos 
   2449  1.1  christos /* Add the VLE flag if required.  */
   2450  1.1  christos 
   2451  1.1  christos bfd_boolean
   2452  1.1  christos ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
   2453  1.1  christos {
   2454  1.1  christos   if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
   2455  1.1  christos       && (shdr->sh_flags & SHF_EXECINSTR) != 0)
   2456  1.1  christos     shdr->sh_flags |= SHF_PPC_VLE;
   2457  1.1  christos 
   2458  1.1  christos   return TRUE;
   2459  1.1  christos }
   2460  1.1  christos 
   2461  1.1  christos /* Return address for Ith PLT stub in section PLT, for relocation REL
   2462  1.1  christos    or (bfd_vma) -1 if it should not be included.  */
   2463  1.1  christos 
   2464  1.1  christos static bfd_vma
   2465  1.1  christos ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
   2466  1.1  christos 		     const asection *plt ATTRIBUTE_UNUSED,
   2467  1.1  christos 		     const arelent *rel)
   2468  1.1  christos {
   2469  1.1  christos   return rel->address;
   2470  1.1  christos }
   2471  1.1  christos 
   2472  1.1  christos /* Handle a PowerPC specific section when reading an object file.  This
   2473  1.1  christos    is called when bfd_section_from_shdr finds a section with an unknown
   2474  1.1  christos    type.  */
   2475  1.1  christos 
   2476  1.1  christos static bfd_boolean
   2477  1.1  christos ppc_elf_section_from_shdr (bfd *abfd,
   2478  1.1  christos 			   Elf_Internal_Shdr *hdr,
   2479  1.1  christos 			   const char *name,
   2480  1.1  christos 			   int shindex)
   2481  1.1  christos {
   2482  1.1  christos   asection *newsect;
   2483  1.1  christos   flagword flags;
   2484  1.1  christos 
   2485  1.1  christos   if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
   2486  1.1  christos     return FALSE;
   2487  1.1  christos 
   2488  1.1  christos   newsect = hdr->bfd_section;
   2489  1.1  christos   flags = bfd_get_section_flags (abfd, newsect);
   2490  1.1  christos   if (hdr->sh_flags & SHF_EXCLUDE)
   2491  1.1  christos     flags |= SEC_EXCLUDE;
   2492  1.1  christos 
   2493  1.1  christos   if (hdr->sh_type == SHT_ORDERED)
   2494  1.1  christos     flags |= SEC_SORT_ENTRIES;
   2495  1.1  christos 
   2496  1.1  christos   bfd_set_section_flags (abfd, newsect, flags);
   2497  1.1  christos   return TRUE;
   2498  1.1  christos }
   2499  1.1  christos 
   2500  1.1  christos /* Set up any other section flags and such that may be necessary.  */
   2501  1.1  christos 
   2502  1.1  christos static bfd_boolean
   2503  1.1  christos ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
   2504  1.1  christos 		       Elf_Internal_Shdr *shdr,
   2505  1.1  christos 		       asection *asect)
   2506  1.1  christos {
   2507  1.1  christos   if ((asect->flags & SEC_SORT_ENTRIES) != 0)
   2508  1.1  christos     shdr->sh_type = SHT_ORDERED;
   2509  1.1  christos 
   2510  1.1  christos   return TRUE;
   2511  1.1  christos }
   2512  1.1  christos 
   2513  1.1  christos /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
   2514  1.1  christos    need to bump up the number of section headers.  */
   2515  1.1  christos 
   2516  1.1  christos static int
   2517  1.1  christos ppc_elf_additional_program_headers (bfd *abfd,
   2518  1.1  christos 				    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2519  1.1  christos {
   2520  1.1  christos   asection *s;
   2521  1.1  christos   int ret = 0;
   2522  1.1  christos 
   2523  1.1  christos   s = bfd_get_section_by_name (abfd, ".sbss2");
   2524  1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2525  1.1  christos     ++ret;
   2526  1.1  christos 
   2527  1.1  christos   s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
   2528  1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2529  1.1  christos     ++ret;
   2530  1.1  christos 
   2531  1.1  christos   return ret;
   2532  1.1  christos }
   2533  1.1  christos 
   2534  1.1  christos /* Modify the segment map for VLE executables.  */
   2535  1.1  christos 
   2536  1.1  christos bfd_boolean
   2537  1.1  christos ppc_elf_modify_segment_map (bfd *abfd,
   2538  1.1  christos 			    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2539  1.1  christos {
   2540  1.1  christos   struct elf_segment_map *m, *n;
   2541  1.1  christos   bfd_size_type amt;
   2542  1.1  christos   unsigned int j, k;
   2543  1.1  christos   bfd_boolean sect0_vle, sectj_vle;
   2544  1.1  christos 
   2545  1.1  christos   /* At this point in the link, output sections have already been sorted by
   2546  1.1  christos      LMA and assigned to segments.  All that is left to do is to ensure
   2547  1.1  christos      there is no mixing of VLE & non-VLE sections in a text segment.
   2548  1.1  christos      If we find that case, we split the segment.
   2549  1.1  christos      We maintain the original output section order.  */
   2550  1.1  christos 
   2551  1.1  christos   for (m = elf_seg_map (abfd); m != NULL; m = m->next)
   2552  1.1  christos     {
   2553  1.1  christos       if (m->count == 0)
   2554  1.1  christos 	continue;
   2555  1.1  christos 
   2556  1.1  christos       sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
   2557  1.1  christos       for (j = 1; j < m->count; ++j)
   2558  1.1  christos 	{
   2559  1.1  christos 	  sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
   2560  1.1  christos 
   2561  1.1  christos 	  if (sectj_vle != sect0_vle)
   2562  1.1  christos 	    break;
   2563  1.1  christos         }
   2564  1.1  christos       if (j >= m->count)
   2565  1.1  christos 	continue;
   2566  1.1  christos 
   2567  1.1  christos       /* sections 0..j-1 stay in this (current) segment,
   2568  1.1  christos 	 the remainder are put in a new segment.
   2569  1.1  christos 	 The scan resumes with the new segment.  */
   2570  1.1  christos 
   2571  1.1  christos       /* Fix the new segment.  */
   2572  1.1  christos       amt = sizeof (struct elf_segment_map);
   2573  1.1  christos       amt += (m->count - j - 1) * sizeof (asection *);
   2574  1.1  christos       n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
   2575  1.1  christos       if (n == NULL)
   2576  1.1  christos         return FALSE;
   2577  1.1  christos 
   2578  1.1  christos       n->p_type = PT_LOAD;
   2579  1.1  christos       n->p_flags = PF_X | PF_R;
   2580  1.1  christos       if (sectj_vle)
   2581  1.1  christos         n->p_flags |= PF_PPC_VLE;
   2582  1.1  christos       n->count = m->count - j;
   2583  1.1  christos       for (k = 0; k < n->count; ++k)
   2584  1.1  christos         {
   2585  1.1  christos           n->sections[k] = m->sections[j+k];
   2586  1.1  christos           m->sections[j+k] = NULL;
   2587  1.1  christos 	}
   2588  1.1  christos       n->next = m->next;
   2589  1.1  christos       m->next = n;
   2590  1.1  christos 
   2591  1.1  christos       /* Fix the current segment  */
   2592  1.1  christos       m->count = j;
   2593  1.1  christos     }
   2594  1.1  christos 
   2595  1.1  christos   return TRUE;
   2596  1.1  christos }
   2597  1.1  christos 
   2598  1.1  christos /* Add extra PPC sections -- Note, for now, make .sbss2 and
   2599  1.1  christos    .PPC.EMB.sbss0 a normal section, and not a bss section so
   2600  1.1  christos    that the linker doesn't crater when trying to make more than
   2601  1.1  christos    2 sections.  */
   2602  1.6  christos 
   2603  1.6  christos static const struct bfd_elf_special_section ppc_elf_special_sections[] =
   2604  1.6  christos {
   2605  1.6  christos   { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
   2606  1.6  christos   { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
   2607  1.6  christos   { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
   2608  1.6  christos   { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
   2609  1.6  christos   { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
   2610  1.6  christos   { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
   2611  1.6  christos   { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
   2612  1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
   2613  1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
   2614  1.1  christos   { NULL, 0, 0, 0, 0 }
   2615  1.1  christos };
   2616  1.1  christos 
   2617  1.1  christos /* This is what we want for new plt/got.  */
   2618  1.1  christos static struct bfd_elf_special_section ppc_alt_plt =
   2619  1.1  christos   { STRING_COMMA_LEN (".plt"),             0, SHT_PROGBITS, SHF_ALLOC };
   2620  1.1  christos 
   2621  1.1  christos static const struct bfd_elf_special_section *
   2622  1.1  christos ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
   2623  1.1  christos {
   2624  1.1  christos   const struct bfd_elf_special_section *ssect;
   2625  1.1  christos 
   2626  1.1  christos   /* See if this is one of the special sections.  */
   2627  1.1  christos   if (sec->name == NULL)
   2628  1.1  christos     return NULL;
   2629  1.1  christos 
   2630  1.1  christos   ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
   2631  1.1  christos 					sec->use_rela_p);
   2632  1.1  christos   if (ssect != NULL)
   2633  1.1  christos     {
   2634  1.1  christos       if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
   2635  1.1  christos 	ssect = &ppc_alt_plt;
   2636  1.1  christos       return ssect;
   2637  1.1  christos     }
   2638  1.1  christos 
   2639  1.1  christos   return _bfd_elf_get_sec_type_attr (abfd, sec);
   2640  1.1  christos }
   2641  1.1  christos 
   2642  1.1  christos /* Very simple linked list structure for recording apuinfo values.  */
   2644  1.1  christos typedef struct apuinfo_list
   2645  1.1  christos {
   2646  1.1  christos   struct apuinfo_list *next;
   2647  1.1  christos   unsigned long value;
   2648  1.1  christos }
   2649  1.1  christos apuinfo_list;
   2650  1.1  christos 
   2651  1.1  christos static apuinfo_list *head;
   2652  1.1  christos static bfd_boolean apuinfo_set;
   2653  1.1  christos 
   2654  1.1  christos static void
   2655  1.1  christos apuinfo_list_init (void)
   2656  1.1  christos {
   2657  1.1  christos   head = NULL;
   2658  1.1  christos   apuinfo_set = FALSE;
   2659  1.1  christos }
   2660  1.1  christos 
   2661  1.1  christos static void
   2662  1.1  christos apuinfo_list_add (unsigned long value)
   2663  1.1  christos {
   2664  1.1  christos   apuinfo_list *entry = head;
   2665  1.1  christos 
   2666  1.1  christos   while (entry != NULL)
   2667  1.1  christos     {
   2668  1.1  christos       if (entry->value == value)
   2669  1.1  christos 	return;
   2670  1.1  christos       entry = entry->next;
   2671  1.1  christos     }
   2672  1.1  christos 
   2673  1.1  christos   entry = bfd_malloc (sizeof (* entry));
   2674  1.1  christos   if (entry == NULL)
   2675  1.1  christos     return;
   2676  1.1  christos 
   2677  1.1  christos   entry->value = value;
   2678  1.1  christos   entry->next  = head;
   2679  1.1  christos   head = entry;
   2680  1.1  christos }
   2681  1.1  christos 
   2682  1.1  christos static unsigned
   2683  1.1  christos apuinfo_list_length (void)
   2684  1.1  christos {
   2685  1.1  christos   apuinfo_list *entry;
   2686  1.1  christos   unsigned long count;
   2687  1.1  christos 
   2688  1.1  christos   for (entry = head, count = 0;
   2689  1.1  christos        entry;
   2690  1.1  christos        entry = entry->next)
   2691  1.1  christos     ++ count;
   2692  1.1  christos 
   2693  1.1  christos   return count;
   2694  1.1  christos }
   2695  1.1  christos 
   2696  1.1  christos static inline unsigned long
   2697  1.1  christos apuinfo_list_element (unsigned long number)
   2698  1.1  christos {
   2699  1.1  christos   apuinfo_list * entry;
   2700  1.1  christos 
   2701  1.1  christos   for (entry = head;
   2702  1.1  christos        entry && number --;
   2703  1.1  christos        entry = entry->next)
   2704  1.1  christos     ;
   2705  1.1  christos 
   2706  1.1  christos   return entry ? entry->value : 0;
   2707  1.1  christos }
   2708  1.1  christos 
   2709  1.1  christos static void
   2710  1.1  christos apuinfo_list_finish (void)
   2711  1.1  christos {
   2712  1.1  christos   apuinfo_list *entry;
   2713  1.1  christos 
   2714  1.1  christos   for (entry = head; entry;)
   2715  1.1  christos     {
   2716  1.1  christos       apuinfo_list *next = entry->next;
   2717  1.1  christos       free (entry);
   2718  1.1  christos       entry = next;
   2719  1.1  christos     }
   2720  1.1  christos 
   2721  1.1  christos   head = NULL;
   2722  1.1  christos }
   2723  1.1  christos 
   2724  1.1  christos /* Scan the input BFDs and create a linked list of
   2725  1.1  christos    the APUinfo values that will need to be emitted.  */
   2726  1.1  christos 
   2727  1.1  christos static void
   2728  1.1  christos ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
   2729  1.1  christos {
   2730  1.1  christos   bfd *ibfd;
   2731  1.1  christos   asection *asec;
   2732  1.1  christos   char *buffer = NULL;
   2733  1.1  christos   bfd_size_type largest_input_size = 0;
   2734  1.1  christos   unsigned i;
   2735  1.1  christos   unsigned long length;
   2736  1.1  christos   const char *error_message = NULL;
   2737  1.1  christos 
   2738  1.1  christos   if (link_info == NULL)
   2739  1.1  christos     return;
   2740  1.3  christos 
   2741  1.1  christos   apuinfo_list_init ();
   2742  1.1  christos 
   2743  1.1  christos   /* Read in the input sections contents.  */
   2744  1.1  christos   for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
   2745  1.1  christos     {
   2746  1.1  christos       unsigned long datum;
   2747  1.1  christos 
   2748  1.1  christos       asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
   2749  1.1  christos       if (asec == NULL)
   2750  1.1  christos 	continue;
   2751  1.1  christos 
   2752  1.1  christos       error_message = _("corrupt %s section in %B");
   2753  1.1  christos       length = asec->size;
   2754  1.1  christos       if (length < 20)
   2755  1.1  christos 	goto fail;
   2756  1.1  christos 
   2757  1.1  christos       apuinfo_set = TRUE;
   2758  1.1  christos       if (largest_input_size < asec->size)
   2759  1.1  christos 	{
   2760  1.1  christos 	  if (buffer)
   2761  1.1  christos 	    free (buffer);
   2762  1.1  christos 	  largest_input_size = asec->size;
   2763  1.1  christos 	  buffer = bfd_malloc (largest_input_size);
   2764  1.1  christos 	  if (!buffer)
   2765  1.1  christos 	    return;
   2766  1.1  christos 	}
   2767  1.1  christos 
   2768  1.1  christos       if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
   2769  1.1  christos 	  || (bfd_bread (buffer, length, ibfd) != length))
   2770  1.1  christos 	{
   2771  1.1  christos 	  error_message = _("unable to read in %s section from %B");
   2772  1.1  christos 	  goto fail;
   2773  1.1  christos 	}
   2774  1.1  christos 
   2775  1.1  christos       /* Verify the contents of the header.  Note - we have to
   2776  1.1  christos 	 extract the values this way in order to allow for a
   2777  1.1  christos 	 host whose endian-ness is different from the target.  */
   2778  1.1  christos       datum = bfd_get_32 (ibfd, buffer);
   2779  1.1  christos       if (datum != sizeof APUINFO_LABEL)
   2780  1.1  christos 	goto fail;
   2781  1.1  christos 
   2782  1.1  christos       datum = bfd_get_32 (ibfd, buffer + 8);
   2783  1.1  christos       if (datum != 0x2)
   2784  1.1  christos 	goto fail;
   2785  1.1  christos 
   2786  1.1  christos       if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
   2787  1.1  christos 	goto fail;
   2788  1.1  christos 
   2789  1.1  christos       /* Get the number of bytes used for apuinfo entries.  */
   2790  1.1  christos       datum = bfd_get_32 (ibfd, buffer + 4);
   2791  1.1  christos       if (datum + 20 != length)
   2792  1.1  christos 	goto fail;
   2793  1.1  christos 
   2794  1.1  christos       /* Scan the apuinfo section, building a list of apuinfo numbers.  */
   2795  1.1  christos       for (i = 0; i < datum; i += 4)
   2796  1.1  christos 	apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
   2797  1.1  christos     }
   2798  1.1  christos 
   2799  1.1  christos   error_message = NULL;
   2800  1.1  christos 
   2801  1.1  christos   if (apuinfo_set)
   2802  1.1  christos     {
   2803  1.1  christos       /* Compute the size of the output section.  */
   2804  1.1  christos       unsigned num_entries = apuinfo_list_length ();
   2805  1.1  christos 
   2806  1.1  christos       /* Set the output section size, if it exists.  */
   2807  1.1  christos       asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2808  1.1  christos 
   2809  1.1  christos       if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
   2810  1.1  christos 	{
   2811  1.1  christos 	  ibfd = abfd;
   2812  1.1  christos 	  error_message = _("warning: unable to set size of %s section in %B");
   2813  1.1  christos 	}
   2814  1.1  christos     }
   2815  1.1  christos 
   2816  1.1  christos  fail:
   2817  1.1  christos   if (buffer)
   2818  1.1  christos     free (buffer);
   2819  1.1  christos 
   2820  1.1  christos   if (error_message)
   2821  1.1  christos     (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
   2822  1.1  christos }
   2823  1.1  christos 
   2824  1.1  christos /* Prevent the output section from accumulating the input sections'
   2825  1.1  christos    contents.  We have already stored this in our linked list structure.  */
   2826  1.1  christos 
   2827  1.1  christos static bfd_boolean
   2828  1.1  christos ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
   2829  1.1  christos 		       struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
   2830  1.1  christos 		       asection *asec,
   2831  1.1  christos 		       bfd_byte *contents ATTRIBUTE_UNUSED)
   2832  1.1  christos {
   2833  1.1  christos   return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
   2834  1.1  christos }
   2835  1.1  christos 
   2836  1.1  christos /* Finally we can generate the output section.  */
   2837  1.1  christos 
   2838  1.1  christos static void
   2839  1.1  christos ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
   2840  1.1  christos {
   2841  1.1  christos   bfd_byte *buffer;
   2842  1.1  christos   asection *asec;
   2843  1.1  christos   unsigned i;
   2844  1.1  christos   unsigned num_entries;
   2845  1.1  christos   bfd_size_type length;
   2846  1.1  christos 
   2847  1.1  christos   asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2848  1.1  christos   if (asec == NULL)
   2849  1.1  christos     return;
   2850  1.1  christos 
   2851  1.1  christos   if (!apuinfo_set)
   2852  1.1  christos     return;
   2853  1.1  christos 
   2854  1.1  christos   length = asec->size;
   2855  1.1  christos   if (length < 20)
   2856  1.1  christos     return;
   2857  1.1  christos 
   2858  1.1  christos   buffer = bfd_malloc (length);
   2859  1.1  christos   if (buffer == NULL)
   2860  1.1  christos     {
   2861  1.1  christos       (*_bfd_error_handler)
   2862  1.1  christos 	(_("failed to allocate space for new APUinfo section."));
   2863  1.1  christos       return;
   2864  1.1  christos     }
   2865  1.1  christos 
   2866  1.1  christos   /* Create the apuinfo header.  */
   2867  1.1  christos   num_entries = apuinfo_list_length ();
   2868  1.1  christos   bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
   2869  1.1  christos   bfd_put_32 (abfd, num_entries * 4, buffer + 4);
   2870  1.1  christos   bfd_put_32 (abfd, 0x2, buffer + 8);
   2871  1.1  christos   strcpy ((char *) buffer + 12, APUINFO_LABEL);
   2872  1.1  christos 
   2873  1.1  christos   length = 20;
   2874  1.1  christos   for (i = 0; i < num_entries; i++)
   2875  1.1  christos     {
   2876  1.1  christos       bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
   2877  1.1  christos       length += 4;
   2878  1.1  christos     }
   2879  1.1  christos 
   2880  1.1  christos   if (length != asec->size)
   2881  1.1  christos     (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
   2882  1.1  christos 
   2883  1.1  christos   if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
   2884  1.1  christos     (*_bfd_error_handler) (_("failed to install new APUinfo section."));
   2885  1.1  christos 
   2886  1.1  christos   free (buffer);
   2887  1.1  christos 
   2888  1.1  christos   apuinfo_list_finish ();
   2889  1.1  christos }
   2890  1.1  christos 
   2891  1.1  christos static bfd_boolean
   2893  1.1  christos is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
   2894  1.1  christos {
   2895  1.1  christos   bfd_byte buf[GLINK_ENTRY_SIZE];
   2896  1.1  christos 
   2897  1.1  christos   if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
   2898  1.1  christos     return FALSE;
   2899  1.1  christos 
   2900  1.1  christos   return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
   2901  1.1  christos 	  && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
   2902  1.1  christos 	  && bfd_get_32 (abfd, buf + 8) == MTCTR_11
   2903  1.1  christos 	  && bfd_get_32 (abfd, buf + 12) == BCTR);
   2904  1.1  christos }
   2905  1.1  christos 
   2906  1.1  christos static bfd_boolean
   2907  1.1  christos section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
   2908  1.1  christos {
   2909  1.1  christos   bfd_vma vma = *(bfd_vma *) ptr;
   2910  1.1  christos   return ((section->flags & SEC_ALLOC) != 0
   2911  1.1  christos 	  && section->vma <= vma
   2912  1.1  christos 	  && vma < section->vma + section->size);
   2913  1.1  christos }
   2914  1.1  christos 
   2915  1.1  christos static long
   2916  1.1  christos ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
   2917  1.1  christos 			      long dynsymcount, asymbol **dynsyms,
   2918  1.1  christos 			      asymbol **ret)
   2919  1.1  christos {
   2920  1.1  christos   bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
   2921  1.1  christos   asection *plt, *relplt, *dynamic, *glink;
   2922  1.1  christos   bfd_vma glink_vma = 0;
   2923  1.1  christos   bfd_vma resolv_vma = 0;
   2924  1.1  christos   bfd_vma stub_vma;
   2925  1.1  christos   asymbol *s;
   2926  1.1  christos   arelent *p;
   2927  1.1  christos   long count, i;
   2928  1.1  christos   size_t size;
   2929  1.1  christos   char *names;
   2930  1.1  christos   bfd_byte buf[4];
   2931  1.1  christos 
   2932  1.1  christos   *ret = NULL;
   2933  1.1  christos 
   2934  1.1  christos   if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
   2935  1.1  christos     return 0;
   2936  1.1  christos 
   2937  1.1  christos   if (dynsymcount <= 0)
   2938  1.1  christos     return 0;
   2939  1.1  christos 
   2940  1.1  christos   relplt = bfd_get_section_by_name (abfd, ".rela.plt");
   2941  1.1  christos   if (relplt == NULL)
   2942  1.1  christos     return 0;
   2943  1.1  christos 
   2944  1.1  christos   plt = bfd_get_section_by_name (abfd, ".plt");
   2945  1.1  christos   if (plt == NULL)
   2946  1.1  christos     return 0;
   2947  1.1  christos 
   2948  1.1  christos   /* Call common code to handle old-style executable PLTs.  */
   2949  1.1  christos   if (elf_section_flags (plt) & SHF_EXECINSTR)
   2950  1.1  christos     return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
   2951  1.1  christos 					  dynsymcount, dynsyms, ret);
   2952  1.1  christos 
   2953  1.1  christos   /* If this object was prelinked, the prelinker stored the address
   2954  1.1  christos      of .glink at got[1].  If it wasn't prelinked, got[1] will be zero.  */
   2955  1.1  christos   dynamic = bfd_get_section_by_name (abfd, ".dynamic");
   2956  1.1  christos   if (dynamic != NULL)
   2957  1.1  christos     {
   2958  1.1  christos       bfd_byte *dynbuf, *extdyn, *extdynend;
   2959  1.1  christos       size_t extdynsize;
   2960  1.1  christos       void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
   2961  1.1  christos 
   2962  1.1  christos       if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
   2963  1.1  christos 	return -1;
   2964  1.1  christos 
   2965  1.1  christos       extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
   2966  1.1  christos       swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
   2967  1.1  christos 
   2968  1.1  christos       extdyn = dynbuf;
   2969  1.1  christos       extdynend = extdyn + dynamic->size;
   2970  1.1  christos       for (; extdyn < extdynend; extdyn += extdynsize)
   2971  1.1  christos 	{
   2972  1.1  christos 	  Elf_Internal_Dyn dyn;
   2973  1.1  christos 	  (*swap_dyn_in) (abfd, extdyn, &dyn);
   2974  1.1  christos 
   2975  1.1  christos 	  if (dyn.d_tag == DT_NULL)
   2976  1.1  christos 	    break;
   2977  1.1  christos 
   2978  1.1  christos 	  if (dyn.d_tag == DT_PPC_GOT)
   2979  1.1  christos 	    {
   2980  1.1  christos 	      unsigned int g_o_t = dyn.d_un.d_val;
   2981  1.1  christos 	      asection *got = bfd_get_section_by_name (abfd, ".got");
   2982  1.1  christos 	      if (got != NULL
   2983  1.1  christos 		  && bfd_get_section_contents (abfd, got, buf,
   2984  1.1  christos 					       g_o_t - got->vma + 4, 4))
   2985  1.1  christos 		glink_vma = bfd_get_32 (abfd, buf);
   2986  1.1  christos 	      break;
   2987  1.1  christos 	    }
   2988  1.1  christos 	}
   2989  1.1  christos       free (dynbuf);
   2990  1.1  christos     }
   2991  1.1  christos 
   2992  1.1  christos   /* Otherwise we read the first plt entry.  */
   2993  1.1  christos   if (glink_vma == 0)
   2994  1.1  christos     {
   2995  1.1  christos       if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
   2996  1.1  christos 	glink_vma = bfd_get_32 (abfd, buf);
   2997  1.1  christos     }
   2998  1.1  christos 
   2999  1.1  christos   if (glink_vma == 0)
   3000  1.1  christos     return 0;
   3001  1.1  christos 
   3002  1.1  christos   /* The .glink section usually does not survive the final
   3003  1.1  christos      link; search for the section (usually .text) where the
   3004  1.1  christos      glink stubs now reside.  */
   3005  1.1  christos   glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
   3006  1.1  christos   if (glink == NULL)
   3007  1.1  christos     return 0;
   3008  1.1  christos 
   3009  1.1  christos   /* Determine glink PLT resolver by reading the relative branch
   3010  1.1  christos      from the first glink stub.  */
   3011  1.1  christos   if (bfd_get_section_contents (abfd, glink, buf,
   3012  1.1  christos 				glink_vma - glink->vma, 4))
   3013  1.1  christos     {
   3014  1.1  christos       unsigned int insn = bfd_get_32 (abfd, buf);
   3015  1.1  christos 
   3016  1.1  christos       /* The first glink stub may either branch to the resolver ...  */
   3017  1.1  christos       insn ^= B;
   3018  1.1  christos       if ((insn & ~0x3fffffc) == 0)
   3019  1.1  christos 	resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
   3020  1.1  christos 
   3021  1.1  christos       /* ... or fall through a bunch of NOPs.  */
   3022  1.1  christos       else if ((insn ^ B ^ NOP) == 0)
   3023  1.1  christos 	for (i = 4;
   3024  1.1  christos 	     bfd_get_section_contents (abfd, glink, buf,
   3025  1.1  christos 				       glink_vma - glink->vma + i, 4);
   3026  1.1  christos 	     i += 4)
   3027  1.1  christos 	  if (bfd_get_32 (abfd, buf) != NOP)
   3028  1.1  christos 	    {
   3029  1.1  christos 	      resolv_vma = glink_vma + i;
   3030  1.1  christos 	      break;
   3031  1.1  christos 	    }
   3032  1.1  christos     }
   3033  1.1  christos 
   3034  1.1  christos   count = relplt->size / sizeof (Elf32_External_Rela);
   3035  1.1  christos   /* If the stubs are those for -shared/-pie then we might have
   3036  1.1  christos      multiple stubs for each plt entry.  If that is the case then
   3037  1.1  christos      there is no way to associate stubs with their plt entries short
   3038  1.1  christos      of figuring out the GOT pointer value used in the stub.  */
   3039  1.1  christos   if (!is_nonpic_glink_stub (abfd, glink,
   3040  1.1  christos 			     glink_vma - GLINK_ENTRY_SIZE - glink->vma))
   3041  1.1  christos     return 0;
   3042  1.1  christos 
   3043  1.1  christos   slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
   3044  1.1  christos   if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
   3045  1.1  christos     return -1;
   3046  1.1  christos 
   3047  1.1  christos   size = count * sizeof (asymbol);
   3048  1.1  christos   p = relplt->relocation;
   3049  1.1  christos   for (i = 0; i < count; i++, p++)
   3050  1.1  christos     {
   3051  1.1  christos       size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
   3052  1.1  christos       if (p->addend != 0)
   3053  1.1  christos 	size += sizeof ("+0x") - 1 + 8;
   3054  1.1  christos     }
   3055  1.1  christos 
   3056  1.1  christos   size += sizeof (asymbol) + sizeof ("__glink");
   3057  1.1  christos 
   3058  1.1  christos   if (resolv_vma)
   3059  1.1  christos     size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
   3060  1.5  christos 
   3061  1.1  christos   s = *ret = bfd_malloc (size);
   3062  1.5  christos   if (s == NULL)
   3063  1.5  christos     return -1;
   3064  1.1  christos 
   3065  1.1  christos   stub_vma = glink_vma;
   3066  1.1  christos   names = (char *) (s + count + 1 + (resolv_vma != 0));
   3067  1.1  christos   p = relplt->relocation + count - 1;
   3068  1.1  christos   for (i = 0; i < count; i++)
   3069  1.1  christos     {
   3070  1.1  christos       size_t len;
   3071  1.1  christos 
   3072  1.1  christos       *s = **p->sym_ptr_ptr;
   3073  1.1  christos       /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set.  Since
   3074  1.5  christos 	 we are defining a symbol, ensure one of them is set.  */
   3075  1.5  christos       if ((s->flags & BSF_LOCAL) == 0)
   3076  1.5  christos 	s->flags |= BSF_GLOBAL;
   3077  1.1  christos       s->flags |= BSF_SYNTHETIC;
   3078  1.1  christos       s->section = glink;
   3079  1.1  christos       stub_vma -= 16;
   3080  1.1  christos       if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
   3081  1.1  christos 	stub_vma -= 32;
   3082  1.1  christos       s->value = stub_vma - glink->vma;
   3083  1.1  christos       s->name = names;
   3084  1.1  christos       s->udata.p = NULL;
   3085  1.1  christos       len = strlen ((*p->sym_ptr_ptr)->name);
   3086  1.1  christos       memcpy (names, (*p->sym_ptr_ptr)->name, len);
   3087  1.1  christos       names += len;
   3088  1.1  christos       if (p->addend != 0)
   3089  1.1  christos 	{
   3090  1.1  christos 	  memcpy (names, "+0x", sizeof ("+0x") - 1);
   3091  1.1  christos 	  names += sizeof ("+0x") - 1;
   3092  1.1  christos 	  bfd_sprintf_vma (abfd, names, p->addend);
   3093  1.5  christos 	  names += strlen (names);
   3094  1.1  christos 	}
   3095  1.1  christos       memcpy (names, "@plt", sizeof ("@plt"));
   3096  1.1  christos       names += sizeof ("@plt");
   3097  1.1  christos       ++s;
   3098  1.1  christos       --p;
   3099  1.1  christos     }
   3100  1.1  christos 
   3101  1.1  christos   /* Add a symbol at the start of the glink branch table.  */
   3102  1.1  christos   memset (s, 0, sizeof *s);
   3103  1.1  christos   s->the_bfd = abfd;
   3104  1.1  christos   s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3105  1.1  christos   s->section = glink;
   3106  1.1  christos   s->value = glink_vma - glink->vma;
   3107  1.1  christos   s->name = names;
   3108  1.1  christos   memcpy (names, "__glink", sizeof ("__glink"));
   3109  1.1  christos   names += sizeof ("__glink");
   3110  1.1  christos   s++;
   3111  1.1  christos   count++;
   3112  1.1  christos 
   3113  1.1  christos   if (resolv_vma)
   3114  1.1  christos     {
   3115  1.1  christos       /* Add a symbol for the glink PLT resolver.  */
   3116  1.1  christos       memset (s, 0, sizeof *s);
   3117  1.1  christos       s->the_bfd = abfd;
   3118  1.1  christos       s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3119  1.1  christos       s->section = glink;
   3120  1.1  christos       s->value = resolv_vma - glink->vma;
   3121  1.1  christos       s->name = names;
   3122  1.1  christos       memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
   3123  1.1  christos       names += sizeof ("__glink_PLTresolve");
   3124  1.1  christos       s++;
   3125  1.1  christos       count++;
   3126  1.1  christos     }
   3127  1.1  christos 
   3128  1.1  christos   return count;
   3129  1.1  christos }
   3130  1.1  christos 
   3131  1.1  christos /* The following functions are specific to the ELF linker, while
   3133  1.1  christos    functions above are used generally.  They appear in this file more
   3134  1.1  christos    or less in the order in which they are called.  eg.
   3135  1.1  christos    ppc_elf_check_relocs is called early in the link process,
   3136  1.1  christos    ppc_elf_finish_dynamic_sections is one of the last functions
   3137  1.1  christos    called.  */
   3138  1.1  christos 
   3139  1.1  christos /* Track PLT entries needed for a given symbol.  We might need more
   3140  1.1  christos    than one glink entry per symbol when generating a pic binary.  */
   3141  1.1  christos struct plt_entry
   3142  1.1  christos {
   3143  1.1  christos   struct plt_entry *next;
   3144  1.1  christos 
   3145  1.1  christos   /* -fPIC uses multiple GOT sections, one per file, called ".got2".
   3146  1.1  christos      This field stores the offset into .got2 used to initialise the
   3147  1.1  christos      GOT pointer reg.  It will always be at least 32768.  (Current
   3148  1.1  christos      gcc always uses an offset of 32768, but ld -r will pack .got2
   3149  1.1  christos      sections together resulting in larger offsets).  */
   3150  1.1  christos   bfd_vma addend;
   3151  1.1  christos 
   3152  1.1  christos   /* The .got2 section.  */
   3153  1.1  christos   asection *sec;
   3154  1.1  christos 
   3155  1.1  christos   /* PLT refcount or offset.  */
   3156  1.1  christos   union
   3157  1.1  christos     {
   3158  1.1  christos       bfd_signed_vma refcount;
   3159  1.1  christos       bfd_vma offset;
   3160  1.1  christos     } plt;
   3161  1.1  christos 
   3162  1.1  christos   /* .glink stub offset.  */
   3163  1.1  christos   bfd_vma glink_offset;
   3164  1.1  christos };
   3165  1.1  christos 
   3166  1.1  christos /* Of those relocs that might be copied as dynamic relocs, this function
   3167  1.1  christos    selects those that must be copied when linking a shared library,
   3168  1.1  christos    even when the symbol is local.  */
   3169  1.1  christos 
   3170  1.1  christos static int
   3171  1.1  christos must_be_dyn_reloc (struct bfd_link_info *info,
   3172  1.1  christos 		   enum elf_ppc_reloc_type r_type)
   3173  1.1  christos {
   3174  1.1  christos   switch (r_type)
   3175  1.1  christos     {
   3176  1.1  christos     default:
   3177  1.1  christos       return 1;
   3178  1.1  christos 
   3179  1.1  christos     case R_PPC_REL24:
   3180  1.1  christos     case R_PPC_REL14:
   3181  1.1  christos     case R_PPC_REL14_BRTAKEN:
   3182  1.1  christos     case R_PPC_REL14_BRNTAKEN:
   3183  1.1  christos     case R_PPC_REL32:
   3184  1.1  christos       return 0;
   3185  1.6  christos 
   3186  1.1  christos     case R_PPC_TPREL32:
   3187  1.1  christos     case R_PPC_TPREL16:
   3188  1.1  christos     case R_PPC_TPREL16_LO:
   3189  1.1  christos     case R_PPC_TPREL16_HI:
   3190  1.1  christos     case R_PPC_TPREL16_HA:
   3191  1.1  christos       return !bfd_link_executable (info);
   3192  1.1  christos     }
   3193  1.1  christos }
   3194  1.1  christos 
   3195  1.1  christos /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
   3196  1.1  christos    copying dynamic variables from a shared lib into an app's dynbss
   3197  1.1  christos    section, and instead use a dynamic relocation to point into the
   3198  1.1  christos    shared lib.  */
   3199  1.1  christos #define ELIMINATE_COPY_RELOCS 1
   3200  1.1  christos 
   3201  1.1  christos /* Used to track dynamic relocations for local symbols.  */
   3202  1.1  christos struct ppc_dyn_relocs
   3203  1.1  christos {
   3204  1.1  christos   struct ppc_dyn_relocs *next;
   3205  1.1  christos 
   3206  1.1  christos   /* The input section of the reloc.  */
   3207  1.1  christos   asection *sec;
   3208  1.1  christos 
   3209  1.1  christos   /* Total number of relocs copied for the input section.  */
   3210  1.1  christos   unsigned int count : 31;
   3211  1.1  christos 
   3212  1.1  christos   /* Whether this entry is for STT_GNU_IFUNC symbols.  */
   3213  1.1  christos   unsigned int ifunc : 1;
   3214  1.1  christos };
   3215  1.1  christos 
   3216  1.1  christos /* PPC ELF linker hash entry.  */
   3217  1.1  christos 
   3218  1.1  christos struct ppc_elf_link_hash_entry
   3219  1.1  christos {
   3220  1.1  christos   struct elf_link_hash_entry elf;
   3221  1.1  christos 
   3222  1.1  christos   /* If this symbol is used in the linker created sections, the processor
   3223  1.1  christos      specific backend uses this field to map the field into the offset
   3224  1.1  christos      from the beginning of the section.  */
   3225  1.1  christos   elf_linker_section_pointers_t *linker_section_pointer;
   3226  1.1  christos 
   3227  1.1  christos   /* Track dynamic relocs copied for this symbol.  */
   3228  1.1  christos   struct elf_dyn_relocs *dyn_relocs;
   3229  1.1  christos 
   3230  1.1  christos   /* Contexts in which symbol is used in the GOT (or TOC).
   3231  1.1  christos      TLS_GD .. TLS_TLS bits are or'd into the mask as the
   3232  1.1  christos      corresponding relocs are encountered during check_relocs.
   3233  1.1  christos      tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
   3234  1.1  christos      indicate the corresponding GOT entry type is not needed.  */
   3235  1.1  christos #define TLS_GD		 1	/* GD reloc. */
   3236  1.1  christos #define TLS_LD		 2	/* LD reloc. */
   3237  1.1  christos #define TLS_TPREL	 4	/* TPREL reloc, => IE. */
   3238  1.1  christos #define TLS_DTPREL	 8	/* DTPREL reloc, => LD. */
   3239  1.1  christos #define TLS_TLS		16	/* Any TLS reloc.  */
   3240  1.5  christos #define TLS_TPRELGD	32	/* TPREL reloc resulting from GD->IE. */
   3241  1.5  christos #define PLT_IFUNC	64	/* STT_GNU_IFUNC.  */
   3242  1.5  christos   char tls_mask;
   3243  1.5  christos 
   3244  1.5  christos   /* Nonzero if we have seen a small data relocation referring to this
   3245  1.1  christos      symbol.  */
   3246  1.1  christos   unsigned char has_sda_refs : 1;
   3247  1.1  christos 
   3248  1.1  christos   /* Flag use of given relocations.  */
   3249  1.1  christos   unsigned char has_addr16_ha : 1;
   3250  1.1  christos   unsigned char has_addr16_lo : 1;
   3251  1.1  christos };
   3252  1.1  christos 
   3253  1.1  christos #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
   3254  1.1  christos 
   3255  1.3  christos /* PPC ELF linker hash table.  */
   3256  1.3  christos 
   3257  1.3  christos struct ppc_elf_link_hash_table
   3258  1.1  christos {
   3259  1.1  christos   struct elf_link_hash_table elf;
   3260  1.1  christos 
   3261  1.1  christos   /* Various options passed from the linker.  */
   3262  1.1  christos   struct ppc_elf_params *params;
   3263  1.1  christos 
   3264  1.1  christos   /* Short-cuts to get to dynamic linker sections.  */
   3265  1.1  christos   asection *got;
   3266  1.1  christos   asection *relgot;
   3267  1.1  christos   asection *glink;
   3268  1.1  christos   asection *plt;
   3269  1.1  christos   asection *relplt;
   3270  1.1  christos   asection *iplt;
   3271  1.1  christos   asection *reliplt;
   3272  1.1  christos   asection *dynbss;
   3273  1.1  christos   asection *relbss;
   3274  1.1  christos   asection *dynsbss;
   3275  1.1  christos   asection *relsbss;
   3276  1.1  christos   elf_linker_section_t sdata[2];
   3277  1.1  christos   asection *sbss;
   3278  1.1  christos   asection *glink_eh_frame;
   3279  1.1  christos 
   3280  1.1  christos   /* The (unloaded but important) .rela.plt.unloaded on VxWorks.  */
   3281  1.1  christos   asection *srelplt2;
   3282  1.1  christos 
   3283  1.1  christos   /* The .got.plt section (VxWorks only)*/
   3284  1.1  christos   asection *sgotplt;
   3285  1.1  christos 
   3286  1.1  christos   /* Shortcut to __tls_get_addr.  */
   3287  1.1  christos   struct elf_link_hash_entry *tls_get_addr;
   3288  1.1  christos 
   3289  1.1  christos   /* The bfd that forced an old-style PLT.  */
   3290  1.1  christos   bfd *old_bfd;
   3291  1.1  christos 
   3292  1.1  christos   /* TLS local dynamic got entry handling.  */
   3293  1.1  christos   union {
   3294  1.1  christos     bfd_signed_vma refcount;
   3295  1.1  christos     bfd_vma offset;
   3296  1.1  christos   } tlsld_got;
   3297  1.1  christos 
   3298  1.1  christos   /* Offset of branch table to PltResolve function in glink.  */
   3299  1.1  christos   bfd_vma glink_pltresolve;
   3300  1.1  christos 
   3301  1.1  christos   /* Size of reserved GOT entries.  */
   3302  1.1  christos   unsigned int got_header_size;
   3303  1.1  christos   /* Non-zero if allocating the header left a gap.  */
   3304  1.1  christos   unsigned int got_gap;
   3305  1.1  christos 
   3306  1.1  christos   /* The type of PLT we have chosen to use.  */
   3307  1.1  christos   enum ppc_elf_plt_type plt_type;
   3308  1.1  christos 
   3309  1.1  christos   /* True if the target system is VxWorks.  */
   3310  1.1  christos   unsigned int is_vxworks:1;
   3311  1.1  christos 
   3312  1.1  christos   /* The size of PLT entries.  */
   3313  1.1  christos   int plt_entry_size;
   3314  1.1  christos   /* The distance between adjacent PLT slots.  */
   3315  1.1  christos   int plt_slot_size;
   3316  1.1  christos   /* The size of the first PLT entry.  */
   3317  1.1  christos   int plt_initial_entry_size;
   3318  1.1  christos 
   3319  1.1  christos   /* Small local sym cache.  */
   3320  1.1  christos   struct sym_cache sym_cache;
   3321  1.1  christos };
   3322  1.1  christos 
   3323  1.1  christos /* Rename some of the generic section flags to better document how they
   3324  1.1  christos    are used for ppc32.  The flags are only valid for ppc32 elf objects.  */
   3325  1.1  christos 
   3326  1.1  christos /* Nonzero if this section has TLS related relocations.  */
   3327  1.1  christos #define has_tls_reloc sec_flg0
   3328  1.1  christos 
   3329  1.1  christos /* Nonzero if this section has a call to __tls_get_addr.  */
   3330  1.1  christos #define has_tls_get_addr_call sec_flg1
   3331  1.1  christos 
   3332  1.1  christos /* Get the PPC ELF linker hash table from a link_info structure.  */
   3333  1.1  christos 
   3334  1.1  christos #define ppc_elf_hash_table(p) \
   3335  1.1  christos   (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
   3336  1.1  christos   == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
   3337  1.1  christos 
   3338  1.1  christos /* Create an entry in a PPC ELF linker hash table.  */
   3339  1.1  christos 
   3340  1.1  christos static struct bfd_hash_entry *
   3341  1.1  christos ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
   3342  1.1  christos 			   struct bfd_hash_table *table,
   3343  1.1  christos 			   const char *string)
   3344  1.1  christos {
   3345  1.1  christos   /* Allocate the structure if it has not already been allocated by a
   3346  1.1  christos      subclass.  */
   3347  1.1  christos   if (entry == NULL)
   3348  1.1  christos     {
   3349  1.1  christos       entry = bfd_hash_allocate (table,
   3350  1.1  christos 				 sizeof (struct ppc_elf_link_hash_entry));
   3351  1.1  christos       if (entry == NULL)
   3352  1.1  christos 	return entry;
   3353  1.1  christos     }
   3354  1.1  christos 
   3355  1.1  christos   /* Call the allocation method of the superclass.  */
   3356  1.1  christos   entry = _bfd_elf_link_hash_newfunc (entry, table, string);
   3357  1.1  christos   if (entry != NULL)
   3358  1.1  christos     {
   3359  1.1  christos       ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
   3360  1.1  christos       ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
   3361  1.1  christos       ppc_elf_hash_entry (entry)->tls_mask = 0;
   3362  1.1  christos       ppc_elf_hash_entry (entry)->has_sda_refs = 0;
   3363  1.1  christos     }
   3364  1.1  christos 
   3365  1.1  christos   return entry;
   3366  1.1  christos }
   3367  1.1  christos 
   3368  1.6  christos /* Create a PPC ELF linker hash table.  */
   3369  1.6  christos 
   3370  1.1  christos static struct bfd_link_hash_table *
   3371  1.1  christos ppc_elf_link_hash_table_create (bfd *abfd)
   3372  1.1  christos {
   3373  1.1  christos   struct ppc_elf_link_hash_table *ret;
   3374  1.1  christos   static struct ppc_elf_params default_params
   3375  1.1  christos     = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0 };
   3376  1.1  christos 
   3377  1.1  christos   ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
   3378  1.1  christos   if (ret == NULL)
   3379  1.1  christos     return NULL;
   3380  1.1  christos 
   3381  1.1  christos   if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
   3382  1.1  christos 				      ppc_elf_link_hash_newfunc,
   3383  1.1  christos 				      sizeof (struct ppc_elf_link_hash_entry),
   3384  1.1  christos 				      PPC32_ELF_DATA))
   3385  1.1  christos     {
   3386  1.1  christos       free (ret);
   3387  1.1  christos       return NULL;
   3388  1.1  christos     }
   3389  1.3  christos 
   3390  1.3  christos   ret->elf.init_plt_refcount.refcount = 0;
   3391  1.1  christos   ret->elf.init_plt_refcount.glist = NULL;
   3392  1.1  christos   ret->elf.init_plt_offset.offset = 0;
   3393  1.1  christos   ret->elf.init_plt_offset.glist = NULL;
   3394  1.1  christos 
   3395  1.1  christos   ret->params = &default_params;
   3396  1.1  christos 
   3397  1.1  christos   ret->sdata[0].name = ".sdata";
   3398  1.1  christos   ret->sdata[0].sym_name = "_SDA_BASE_";
   3399  1.1  christos   ret->sdata[0].bss_name = ".sbss";
   3400  1.1  christos 
   3401  1.1  christos   ret->sdata[1].name = ".sdata2";
   3402  1.1  christos   ret->sdata[1].sym_name = "_SDA2_BASE_";
   3403  1.1  christos   ret->sdata[1].bss_name = ".sbss2";
   3404  1.1  christos 
   3405  1.1  christos   ret->plt_entry_size = 12;
   3406  1.3  christos   ret->plt_slot_size = 8;
   3407  1.3  christos   ret->plt_initial_entry_size = 72;
   3408  1.3  christos 
   3409  1.3  christos   return &ret->elf.root;
   3410  1.3  christos }
   3411  1.3  christos 
   3412  1.3  christos /* Hook linker params into hash table.  */
   3413  1.3  christos 
   3414  1.3  christos void
   3415  1.6  christos ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
   3416  1.3  christos {
   3417  1.3  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3418  1.1  christos 
   3419  1.1  christos   if (htab)
   3420  1.1  christos     htab->params = params;
   3421  1.1  christos   params->pagesize_p2 = bfd_log2 (params->pagesize);
   3422  1.1  christos }
   3423  1.1  christos 
   3424  1.1  christos /* Create .got and the related sections.  */
   3425  1.1  christos 
   3426  1.1  christos static bfd_boolean
   3427  1.1  christos ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
   3428  1.1  christos {
   3429  1.1  christos   struct ppc_elf_link_hash_table *htab;
   3430  1.1  christos   asection *s;
   3431  1.1  christos   flagword flags;
   3432  1.1  christos 
   3433  1.1  christos   if (!_bfd_elf_create_got_section (abfd, info))
   3434  1.1  christos     return FALSE;
   3435  1.1  christos 
   3436  1.1  christos   htab = ppc_elf_hash_table (info);
   3437  1.1  christos   htab->got = s = bfd_get_linker_section (abfd, ".got");
   3438  1.1  christos   if (s == NULL)
   3439  1.1  christos     abort ();
   3440  1.1  christos 
   3441  1.1  christos   if (htab->is_vxworks)
   3442  1.1  christos     {
   3443  1.1  christos       htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
   3444  1.1  christos       if (!htab->sgotplt)
   3445  1.1  christos 	abort ();
   3446  1.1  christos     }
   3447  1.1  christos   else
   3448  1.1  christos     {
   3449  1.1  christos       /* The powerpc .got has a blrl instruction in it.  Mark it
   3450  1.1  christos 	 executable.  */
   3451  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
   3452  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3453  1.1  christos       if (!bfd_set_section_flags (abfd, s, flags))
   3454  1.1  christos 	return FALSE;
   3455  1.1  christos     }
   3456  1.1  christos 
   3457  1.1  christos   htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
   3458  1.3  christos   if (!htab->relgot)
   3459  1.3  christos     abort ();
   3460  1.3  christos 
   3461  1.3  christos   return TRUE;
   3462  1.3  christos }
   3463  1.3  christos 
   3464  1.3  christos /* Create a special linker section, used for R_PPC_EMB_SDAI16 and
   3465  1.3  christos    R_PPC_EMB_SDA2I16 pointers.  These sections become part of .sdata
   3466  1.3  christos    and .sdata2.  Create _SDA_BASE_ and _SDA2_BASE too.  */
   3467  1.3  christos 
   3468  1.3  christos static bfd_boolean
   3469  1.3  christos ppc_elf_create_linker_section (bfd *abfd,
   3470  1.3  christos 			       struct bfd_link_info *info,
   3471  1.3  christos 			       flagword flags,
   3472  1.3  christos 			       elf_linker_section_t *lsect)
   3473  1.3  christos {
   3474  1.3  christos   asection *s;
   3475  1.3  christos 
   3476  1.3  christos   flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
   3477  1.3  christos 	    | SEC_LINKER_CREATED);
   3478  1.3  christos 
   3479  1.3  christos   s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
   3480  1.3  christos   if (s == NULL)
   3481  1.3  christos     return FALSE;
   3482  1.3  christos   lsect->section = s;
   3483  1.3  christos 
   3484  1.3  christos   /* Define the sym on the first section of this name.  */
   3485  1.3  christos   s = bfd_get_section_by_name (abfd, lsect->name);
   3486  1.3  christos 
   3487  1.3  christos   lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
   3488  1.1  christos   if (lsect->sym == NULL)
   3489  1.1  christos     return FALSE;
   3490  1.1  christos   lsect->sym->root.u.def.value = 0x8000;
   3491  1.1  christos   return TRUE;
   3492  1.1  christos }
   3493  1.1  christos 
   3494  1.1  christos static bfd_boolean
   3495  1.1  christos ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
   3496  1.1  christos {
   3497  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3498  1.1  christos   asection *s;
   3499  1.1  christos   flagword flags;
   3500  1.3  christos 
   3501  1.3  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
   3502  1.1  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3503  1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
   3504  1.1  christos   htab->glink = s;
   3505  1.1  christos   if (s == NULL
   3506  1.1  christos       || !bfd_set_section_alignment (abfd, s,
   3507  1.1  christos 				     htab->params->ppc476_workaround ? 6 : 4))
   3508  1.1  christos     return FALSE;
   3509  1.1  christos 
   3510  1.1  christos   if (!info->no_ld_generated_unwind_info)
   3511  1.1  christos     {
   3512  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3513  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3514  1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
   3515  1.1  christos       htab->glink_eh_frame = s;
   3516  1.1  christos       if (s == NULL
   3517  1.1  christos 	  || !bfd_set_section_alignment (abfd, s, 2))
   3518  1.1  christos 	return FALSE;
   3519  1.1  christos     }
   3520  1.1  christos 
   3521  1.1  christos   flags = SEC_ALLOC | SEC_LINKER_CREATED;
   3522  1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
   3523  1.1  christos   htab->iplt = s;
   3524  1.1  christos   if (s == NULL
   3525  1.1  christos       || !bfd_set_section_alignment (abfd, s, 4))
   3526  1.1  christos     return FALSE;
   3527  1.1  christos 
   3528  1.1  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3529  1.3  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3530  1.3  christos   s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
   3531  1.3  christos   htab->reliplt = s;
   3532  1.3  christos   if (s == NULL
   3533  1.3  christos       || ! bfd_set_section_alignment (abfd, s, 2))
   3534  1.3  christos     return FALSE;
   3535  1.3  christos 
   3536  1.3  christos   if (!ppc_elf_create_linker_section (abfd, info, 0,
   3537  1.3  christos 				      &htab->sdata[0]))
   3538  1.1  christos     return FALSE;
   3539  1.1  christos 
   3540  1.1  christos   if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
   3541  1.1  christos 				      &htab->sdata[1]))
   3542  1.1  christos     return FALSE;
   3543  1.1  christos 
   3544  1.1  christos   return TRUE;
   3545  1.1  christos }
   3546  1.1  christos 
   3547  1.1  christos /* We have to create .dynsbss and .rela.sbss here so that they get mapped
   3548  1.1  christos    to output sections (just like _bfd_elf_create_dynamic_sections has
   3549  1.1  christos    to create .dynbss and .rela.bss).  */
   3550  1.1  christos 
   3551  1.1  christos static bfd_boolean
   3552  1.1  christos ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
   3553  1.1  christos {
   3554  1.1  christos   struct ppc_elf_link_hash_table *htab;
   3555  1.1  christos   asection *s;
   3556  1.1  christos   flagword flags;
   3557  1.1  christos 
   3558  1.1  christos   htab = ppc_elf_hash_table (info);
   3559  1.1  christos 
   3560  1.1  christos   if (htab->got == NULL
   3561  1.1  christos       && !ppc_elf_create_got (abfd, info))
   3562  1.1  christos     return FALSE;
   3563  1.1  christos 
   3564  1.1  christos   if (!_bfd_elf_create_dynamic_sections (abfd, info))
   3565  1.1  christos     return FALSE;
   3566  1.1  christos 
   3567  1.1  christos   if (htab->glink == NULL
   3568  1.1  christos       && !ppc_elf_create_glink (abfd, info))
   3569  1.1  christos     return FALSE;
   3570  1.1  christos 
   3571  1.1  christos   htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
   3572  1.6  christos   s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
   3573  1.1  christos 					  SEC_ALLOC | SEC_LINKER_CREATED);
   3574  1.1  christos   htab->dynsbss = s;
   3575  1.1  christos   if (s == NULL)
   3576  1.1  christos     return FALSE;
   3577  1.1  christos 
   3578  1.1  christos   if (! bfd_link_pic (info))
   3579  1.1  christos     {
   3580  1.1  christos       htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
   3581  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3582  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3583  1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
   3584  1.1  christos       htab->relsbss = s;
   3585  1.1  christos       if (s == NULL
   3586  1.1  christos 	  || ! bfd_set_section_alignment (abfd, s, 2))
   3587  1.1  christos 	return FALSE;
   3588  1.1  christos     }
   3589  1.1  christos 
   3590  1.1  christos   if (htab->is_vxworks
   3591  1.1  christos       && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
   3592  1.1  christos     return FALSE;
   3593  1.1  christos 
   3594  1.1  christos   htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
   3595  1.1  christos   htab->plt = s = bfd_get_linker_section (abfd, ".plt");
   3596  1.1  christos   if (s == NULL)
   3597  1.1  christos     abort ();
   3598  1.1  christos 
   3599  1.1  christos   flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
   3600  1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   3601  1.1  christos     /* The VxWorks PLT is a loaded section with contents.  */
   3602  1.1  christos     flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
   3603  1.1  christos   return bfd_set_section_flags (abfd, s, flags);
   3604  1.1  christos }
   3605  1.1  christos 
   3606  1.1  christos /* Copy the extra info we tack onto an elf_link_hash_entry.  */
   3607  1.1  christos 
   3608  1.1  christos static void
   3609  1.1  christos ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
   3610  1.1  christos 			      struct elf_link_hash_entry *dir,
   3611  1.1  christos 			      struct elf_link_hash_entry *ind)
   3612  1.1  christos {
   3613  1.1  christos   struct ppc_elf_link_hash_entry *edir, *eind;
   3614  1.1  christos 
   3615  1.1  christos   edir = (struct ppc_elf_link_hash_entry *) dir;
   3616  1.1  christos   eind = (struct ppc_elf_link_hash_entry *) ind;
   3617  1.1  christos 
   3618  1.1  christos   edir->tls_mask |= eind->tls_mask;
   3619  1.1  christos   edir->has_sda_refs |= eind->has_sda_refs;
   3620  1.1  christos 
   3621  1.1  christos   /* If called to transfer flags for a weakdef during processing
   3622  1.1  christos      of elf_adjust_dynamic_symbol, don't copy non_got_ref.
   3623  1.1  christos      We clear it ourselves for ELIMINATE_COPY_RELOCS.  */
   3624  1.1  christos   if (!(ELIMINATE_COPY_RELOCS
   3625  1.1  christos 	&& eind->elf.root.type != bfd_link_hash_indirect
   3626  1.1  christos 	&& edir->elf.dynamic_adjusted))
   3627  1.1  christos     edir->elf.non_got_ref |= eind->elf.non_got_ref;
   3628  1.1  christos 
   3629  1.1  christos   edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
   3630  1.1  christos   edir->elf.ref_regular |= eind->elf.ref_regular;
   3631  1.1  christos   edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
   3632  1.1  christos   edir->elf.needs_plt |= eind->elf.needs_plt;
   3633  1.1  christos   edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
   3634  1.1  christos 
   3635  1.1  christos   if (eind->dyn_relocs != NULL)
   3636  1.1  christos     {
   3637  1.1  christos       if (edir->dyn_relocs != NULL)
   3638  1.1  christos 	{
   3639  1.1  christos 	  struct elf_dyn_relocs **pp;
   3640  1.1  christos 	  struct elf_dyn_relocs *p;
   3641  1.1  christos 
   3642  1.1  christos 	  /* Add reloc counts against the indirect sym to the direct sym
   3643  1.1  christos 	     list.  Merge any entries against the same section.  */
   3644  1.1  christos 	  for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
   3645  1.1  christos 	    {
   3646  1.1  christos 	      struct elf_dyn_relocs *q;
   3647  1.1  christos 
   3648  1.1  christos 	      for (q = edir->dyn_relocs; q != NULL; q = q->next)
   3649  1.1  christos 		if (q->sec == p->sec)
   3650  1.1  christos 		  {
   3651  1.1  christos 		    q->pc_count += p->pc_count;
   3652  1.1  christos 		    q->count += p->count;
   3653  1.1  christos 		    *pp = p->next;
   3654  1.1  christos 		    break;
   3655  1.1  christos 		  }
   3656  1.1  christos 	      if (q == NULL)
   3657  1.1  christos 		pp = &p->next;
   3658  1.1  christos 	    }
   3659  1.1  christos 	  *pp = edir->dyn_relocs;
   3660  1.1  christos 	}
   3661  1.1  christos 
   3662  1.1  christos       edir->dyn_relocs = eind->dyn_relocs;
   3663  1.1  christos       eind->dyn_relocs = NULL;
   3664  1.1  christos     }
   3665  1.1  christos 
   3666  1.1  christos   /* If we were called to copy over info for a weak sym, that's all.
   3667  1.1  christos      You might think dyn_relocs need not be copied over;  After all,
   3668  1.1  christos      both syms will be dynamic or both non-dynamic so we're just
   3669  1.1  christos      moving reloc accounting around.  However, ELIMINATE_COPY_RELOCS
   3670  1.1  christos      code in ppc_elf_adjust_dynamic_symbol needs to check for
   3671  1.1  christos      dyn_relocs in read-only sections, and it does so on what is the
   3672  1.1  christos      DIR sym here.  */
   3673  1.1  christos   if (eind->elf.root.type != bfd_link_hash_indirect)
   3674  1.1  christos     return;
   3675  1.1  christos 
   3676  1.1  christos   /* Copy over the GOT refcount entries that we may have already seen to
   3677  1.1  christos      the symbol which just became indirect.  */
   3678  1.1  christos   edir->elf.got.refcount += eind->elf.got.refcount;
   3679  1.1  christos   eind->elf.got.refcount = 0;
   3680  1.1  christos 
   3681  1.1  christos   /* And plt entries.  */
   3682  1.1  christos   if (eind->elf.plt.plist != NULL)
   3683  1.1  christos     {
   3684  1.1  christos       if (edir->elf.plt.plist != NULL)
   3685  1.1  christos 	{
   3686  1.1  christos 	  struct plt_entry **entp;
   3687  1.1  christos 	  struct plt_entry *ent;
   3688  1.1  christos 
   3689  1.1  christos 	  for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
   3690  1.1  christos 	    {
   3691  1.1  christos 	      struct plt_entry *dent;
   3692  1.1  christos 
   3693  1.1  christos 	      for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
   3694  1.1  christos 		if (dent->sec == ent->sec && dent->addend == ent->addend)
   3695  1.1  christos 		  {
   3696  1.1  christos 		    dent->plt.refcount += ent->plt.refcount;
   3697  1.1  christos 		    *entp = ent->next;
   3698  1.1  christos 		    break;
   3699  1.1  christos 		  }
   3700  1.1  christos 	      if (dent == NULL)
   3701  1.1  christos 		entp = &ent->next;
   3702  1.1  christos 	    }
   3703  1.1  christos 	  *entp = edir->elf.plt.plist;
   3704  1.1  christos 	}
   3705  1.1  christos 
   3706  1.1  christos       edir->elf.plt.plist = eind->elf.plt.plist;
   3707  1.1  christos       eind->elf.plt.plist = NULL;
   3708  1.1  christos     }
   3709  1.1  christos 
   3710  1.1  christos   if (eind->elf.dynindx != -1)
   3711  1.1  christos     {
   3712  1.1  christos       if (edir->elf.dynindx != -1)
   3713  1.1  christos 	_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   3714  1.1  christos 				edir->elf.dynstr_index);
   3715  1.1  christos       edir->elf.dynindx = eind->elf.dynindx;
   3716  1.1  christos       edir->elf.dynstr_index = eind->elf.dynstr_index;
   3717  1.1  christos       eind->elf.dynindx = -1;
   3718  1.1  christos       eind->elf.dynstr_index = 0;
   3719  1.1  christos     }
   3720  1.1  christos }
   3721  1.1  christos 
   3722  1.1  christos /* Hook called by the linker routine which adds symbols from an object
   3723  1.1  christos    file.  We use it to put .comm items in .sbss, and not .bss.  */
   3724  1.1  christos 
   3725  1.1  christos static bfd_boolean
   3726  1.1  christos ppc_elf_add_symbol_hook (bfd *abfd,
   3727  1.1  christos 			 struct bfd_link_info *info,
   3728  1.1  christos 			 Elf_Internal_Sym *sym,
   3729  1.6  christos 			 const char **namep ATTRIBUTE_UNUSED,
   3730  1.1  christos 			 flagword *flagsp ATTRIBUTE_UNUSED,
   3731  1.1  christos 			 asection **secp,
   3732  1.1  christos 			 bfd_vma *valp)
   3733  1.1  christos {
   3734  1.1  christos   if (sym->st_shndx == SHN_COMMON
   3735  1.1  christos       && !bfd_link_relocatable (info)
   3736  1.1  christos       && is_ppc_elf (info->output_bfd)
   3737  1.1  christos       && sym->st_size <= elf_gp_size (abfd))
   3738  1.1  christos     {
   3739  1.1  christos       /* Common symbols less than or equal to -G nn bytes are automatically
   3740  1.1  christos 	 put into .sbss.  */
   3741  1.1  christos       struct ppc_elf_link_hash_table *htab;
   3742  1.1  christos 
   3743  1.1  christos       htab = ppc_elf_hash_table (info);
   3744  1.1  christos       if (htab->sbss == NULL)
   3745  1.1  christos 	{
   3746  1.1  christos 	  flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
   3747  1.1  christos 
   3748  1.1  christos 	  if (!htab->elf.dynobj)
   3749  1.1  christos 	    htab->elf.dynobj = abfd;
   3750  1.1  christos 
   3751  1.1  christos 	  htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
   3752  1.1  christos 							   ".sbss",
   3753  1.1  christos 							   flags);
   3754  1.1  christos 	  if (htab->sbss == NULL)
   3755  1.1  christos 	    return FALSE;
   3756  1.6  christos 	}
   3757  1.3  christos 
   3758  1.3  christos       *secp = htab->sbss;
   3759  1.6  christos       *valp = sym->st_size;
   3760  1.1  christos     }
   3761  1.1  christos 
   3762  1.1  christos   if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
   3763  1.1  christos       && (abfd->flags & DYNAMIC) == 0
   3764  1.1  christos       && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
   3765  1.1  christos     elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
   3766  1.1  christos 
   3767  1.1  christos   return TRUE;
   3768  1.1  christos }
   3769  1.1  christos 
   3770  1.1  christos /* Find a linker generated pointer with a given addend and type.  */
   3772  1.1  christos 
   3773  1.1  christos static elf_linker_section_pointers_t *
   3774  1.1  christos elf_find_pointer_linker_section
   3775  1.1  christos   (elf_linker_section_pointers_t *linker_pointers,
   3776  1.1  christos    bfd_vma addend,
   3777  1.1  christos    elf_linker_section_t *lsect)
   3778  1.1  christos {
   3779  1.1  christos   for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
   3780  1.1  christos     if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
   3781  1.1  christos       return linker_pointers;
   3782  1.3  christos 
   3783  1.3  christos   return NULL;
   3784  1.3  christos }
   3785  1.3  christos 
   3786  1.1  christos /* Allocate a pointer to live in a linker created section.  */
   3787  1.1  christos 
   3788  1.1  christos static bfd_boolean
   3789  1.1  christos elf_allocate_pointer_linker_section (bfd *abfd,
   3790  1.1  christos 				     elf_linker_section_t *lsect,
   3791  1.1  christos 				     struct elf_link_hash_entry *h,
   3792  1.1  christos 				     const Elf_Internal_Rela *rel)
   3793  1.1  christos {
   3794  1.1  christos   elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
   3795  1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   3796  1.1  christos   unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   3797  1.1  christos   bfd_size_type amt;
   3798  1.1  christos 
   3799  1.1  christos   BFD_ASSERT (lsect != NULL);
   3800  1.1  christos 
   3801  1.1  christos   /* Is this a global symbol?  */
   3802  1.1  christos   if (h != NULL)
   3803  1.1  christos     {
   3804  1.1  christos       struct ppc_elf_link_hash_entry *eh;
   3805  1.1  christos 
   3806  1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3807  1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   3808  1.1  christos       if (elf_find_pointer_linker_section (eh->linker_section_pointer,
   3809  1.1  christos 					   rel->r_addend,
   3810  1.1  christos 					   lsect))
   3811  1.1  christos 	return TRUE;
   3812  1.1  christos 
   3813  1.1  christos       ptr_linker_section_ptr = &eh->linker_section_pointer;
   3814  1.1  christos     }
   3815  1.1  christos   else
   3816  1.1  christos     {
   3817  1.1  christos       BFD_ASSERT (is_ppc_elf (abfd));
   3818  1.1  christos 
   3819  1.1  christos       /* Allocation of a pointer to a local symbol.  */
   3820  1.1  christos       elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
   3821  1.1  christos 
   3822  1.1  christos       /* Allocate a table to hold the local symbols if first time.  */
   3823  1.1  christos       if (!ptr)
   3824  1.1  christos 	{
   3825  1.1  christos 	  unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
   3826  1.1  christos 
   3827  1.1  christos 	  amt = num_symbols;
   3828  1.1  christos 	  amt *= sizeof (elf_linker_section_pointers_t *);
   3829  1.1  christos 	  ptr = bfd_zalloc (abfd, amt);
   3830  1.1  christos 
   3831  1.1  christos 	  if (!ptr)
   3832  1.1  christos 	    return FALSE;
   3833  1.1  christos 
   3834  1.1  christos 	  elf_local_ptr_offsets (abfd) = ptr;
   3835  1.1  christos 	}
   3836  1.1  christos 
   3837  1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3838  1.1  christos       if (elf_find_pointer_linker_section (ptr[r_symndx],
   3839  1.1  christos 					   rel->r_addend,
   3840  1.1  christos 					   lsect))
   3841  1.1  christos 	return TRUE;
   3842  1.1  christos 
   3843  1.1  christos       ptr_linker_section_ptr = &ptr[r_symndx];
   3844  1.1  christos     }
   3845  1.1  christos 
   3846  1.1  christos   /* Allocate space for a pointer in the linker section, and allocate
   3847  1.1  christos      a new pointer record from internal memory.  */
   3848  1.1  christos   BFD_ASSERT (ptr_linker_section_ptr != NULL);
   3849  1.1  christos   amt = sizeof (elf_linker_section_pointers_t);
   3850  1.1  christos   linker_section_ptr = bfd_alloc (abfd, amt);
   3851  1.1  christos 
   3852  1.1  christos   if (!linker_section_ptr)
   3853  1.3  christos     return FALSE;
   3854  1.3  christos 
   3855  1.1  christos   linker_section_ptr->next = *ptr_linker_section_ptr;
   3856  1.1  christos   linker_section_ptr->addend = rel->r_addend;
   3857  1.1  christos   linker_section_ptr->lsect = lsect;
   3858  1.1  christos   *ptr_linker_section_ptr = linker_section_ptr;
   3859  1.1  christos 
   3860  1.1  christos   if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
   3861  1.1  christos     return FALSE;
   3862  1.1  christos   linker_section_ptr->offset = lsect->section->size;
   3863  1.1  christos   lsect->section->size += 4;
   3864  1.1  christos 
   3865  1.1  christos #ifdef DEBUG
   3866  1.1  christos   fprintf (stderr,
   3867  1.1  christos 	   "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
   3868  1.1  christos 	   lsect->name, (long) linker_section_ptr->offset,
   3869  1.1  christos 	   (long) lsect->section->size);
   3870  1.1  christos #endif
   3871  1.1  christos 
   3872  1.1  christos   return TRUE;
   3873  1.1  christos }
   3874  1.1  christos 
   3875  1.1  christos static struct plt_entry **
   3876  1.1  christos update_local_sym_info (bfd *abfd,
   3877  1.1  christos 		       Elf_Internal_Shdr *symtab_hdr,
   3878  1.1  christos 		       unsigned long r_symndx,
   3879  1.1  christos 		       int tls_type)
   3880  1.1  christos {
   3881  1.1  christos   bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
   3882  1.1  christos   struct plt_entry **local_plt;
   3883  1.1  christos   char *local_got_tls_masks;
   3884  1.1  christos 
   3885  1.1  christos   if (local_got_refcounts == NULL)
   3886  1.1  christos     {
   3887  1.1  christos       bfd_size_type size = symtab_hdr->sh_info;
   3888  1.1  christos 
   3889  1.1  christos       size *= (sizeof (*local_got_refcounts)
   3890  1.1  christos 	       + sizeof (*local_plt)
   3891  1.1  christos 	       + sizeof (*local_got_tls_masks));
   3892  1.1  christos       local_got_refcounts = bfd_zalloc (abfd, size);
   3893  1.1  christos       if (local_got_refcounts == NULL)
   3894  1.1  christos 	return NULL;
   3895  1.1  christos       elf_local_got_refcounts (abfd) = local_got_refcounts;
   3896  1.1  christos     }
   3897  1.1  christos 
   3898  1.1  christos   local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
   3899  1.1  christos   local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
   3900  1.1  christos   local_got_tls_masks[r_symndx] |= tls_type;
   3901  1.1  christos   if (tls_type != PLT_IFUNC)
   3902  1.1  christos     local_got_refcounts[r_symndx] += 1;
   3903  1.1  christos   return local_plt + r_symndx;
   3904  1.1  christos }
   3905  1.1  christos 
   3906  1.1  christos static bfd_boolean
   3907  1.1  christos update_plt_info (bfd *abfd, struct plt_entry **plist,
   3908  1.1  christos 		 asection *sec, bfd_vma addend)
   3909  1.1  christos {
   3910  1.1  christos   struct plt_entry *ent;
   3911  1.1  christos 
   3912  1.1  christos   if (addend < 32768)
   3913  1.1  christos     sec = NULL;
   3914  1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3915  1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3916  1.1  christos       break;
   3917  1.1  christos   if (ent == NULL)
   3918  1.1  christos     {
   3919  1.1  christos       bfd_size_type amt = sizeof (*ent);
   3920  1.1  christos       ent = bfd_alloc (abfd, amt);
   3921  1.1  christos       if (ent == NULL)
   3922  1.1  christos 	return FALSE;
   3923  1.1  christos       ent->next = *plist;
   3924  1.1  christos       ent->sec = sec;
   3925  1.1  christos       ent->addend = addend;
   3926  1.1  christos       ent->plt.refcount = 0;
   3927  1.1  christos       *plist = ent;
   3928  1.1  christos     }
   3929  1.1  christos   ent->plt.refcount += 1;
   3930  1.1  christos   return TRUE;
   3931  1.1  christos }
   3932  1.1  christos 
   3933  1.1  christos static struct plt_entry *
   3934  1.1  christos find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
   3935  1.1  christos {
   3936  1.1  christos   struct plt_entry *ent;
   3937  1.1  christos 
   3938  1.1  christos   if (addend < 32768)
   3939  1.1  christos     sec = NULL;
   3940  1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3941  1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3942  1.1  christos       break;
   3943  1.1  christos   return ent;
   3944  1.1  christos }
   3945  1.1  christos 
   3946  1.1  christos static bfd_boolean
   3947  1.1  christos is_branch_reloc (enum elf_ppc_reloc_type r_type)
   3948  1.1  christos {
   3949  1.1  christos   return (r_type == R_PPC_PLTREL24
   3950  1.1  christos 	  || r_type == R_PPC_LOCAL24PC
   3951  1.1  christos 	  || r_type == R_PPC_REL24
   3952  1.1  christos 	  || r_type == R_PPC_REL14
   3953  1.1  christos 	  || r_type == R_PPC_REL14_BRTAKEN
   3954  1.1  christos 	  || r_type == R_PPC_REL14_BRNTAKEN
   3955  1.1  christos 	  || r_type == R_PPC_ADDR24
   3956  1.1  christos 	  || r_type == R_PPC_ADDR14
   3957  1.1  christos 	  || r_type == R_PPC_ADDR14_BRTAKEN
   3958  1.1  christos 	  || r_type == R_PPC_ADDR14_BRNTAKEN);
   3959  1.1  christos }
   3960  1.1  christos 
   3961  1.1  christos static void
   3962  1.1  christos bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
   3963  1.1  christos {
   3964  1.1  christos   (*_bfd_error_handler)
   3965  1.1  christos     (_("%B: relocation %s cannot be used when making a shared object"),
   3966  1.1  christos      abfd,
   3967  1.1  christos      ppc_elf_howto_table[r_type]->name);
   3968  1.1  christos   bfd_set_error (bfd_error_bad_value);
   3969  1.1  christos }
   3970  1.1  christos 
   3971  1.1  christos /* Look through the relocs for a section during the first phase, and
   3972  1.1  christos    allocate space in the global offset table or procedure linkage
   3973  1.1  christos    table.  */
   3974  1.1  christos 
   3975  1.1  christos static bfd_boolean
   3976  1.1  christos ppc_elf_check_relocs (bfd *abfd,
   3977  1.1  christos 		      struct bfd_link_info *info,
   3978  1.1  christos 		      asection *sec,
   3979  1.1  christos 		      const Elf_Internal_Rela *relocs)
   3980  1.1  christos {
   3981  1.1  christos   struct ppc_elf_link_hash_table *htab;
   3982  1.6  christos   Elf_Internal_Shdr *symtab_hdr;
   3983  1.1  christos   struct elf_link_hash_entry **sym_hashes;
   3984  1.1  christos   const Elf_Internal_Rela *rel;
   3985  1.1  christos   const Elf_Internal_Rela *rel_end;
   3986  1.1  christos   asection *got2, *sreloc;
   3987  1.1  christos   struct elf_link_hash_entry *tga;
   3988  1.1  christos 
   3989  1.1  christos   if (bfd_link_relocatable (info))
   3990  1.1  christos     return TRUE;
   3991  1.1  christos 
   3992  1.1  christos   /* Don't do anything special with non-loaded, non-alloced sections.
   3993  1.1  christos      In particular, any relocs in such sections should not affect GOT
   3994  1.1  christos      and PLT reference counting (ie. we don't allow them to create GOT
   3995  1.1  christos      or PLT entries), there's no possibility or desire to optimize TLS
   3996  1.1  christos      relocs, and there's not much point in propagating relocs to shared
   3997  1.1  christos      libs that the dynamic linker won't relocate.  */
   3998  1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   3999  1.1  christos     return TRUE;
   4000  1.1  christos 
   4001  1.1  christos #ifdef DEBUG
   4002  1.1  christos   _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
   4003  1.1  christos 		      sec, abfd);
   4004  1.1  christos #endif
   4005  1.1  christos 
   4006  1.1  christos   BFD_ASSERT (is_ppc_elf (abfd));
   4007  1.1  christos 
   4008  1.1  christos   /* Initialize howto table if not already done.  */
   4009  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   4010  1.1  christos     ppc_elf_howto_init ();
   4011  1.1  christos 
   4012  1.1  christos   htab = ppc_elf_hash_table (info);
   4013  1.1  christos   if (htab->glink == NULL)
   4014  1.1  christos     {
   4015  1.1  christos       if (htab->elf.dynobj == NULL)
   4016  1.1  christos 	htab->elf.dynobj = abfd;
   4017  1.1  christos       if (!ppc_elf_create_glink (htab->elf.dynobj, info))
   4018  1.1  christos 	return FALSE;
   4019  1.1  christos     }
   4020  1.1  christos   tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   4021  1.1  christos 			      FALSE, FALSE, TRUE);
   4022  1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   4023  1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   4024  1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   4025  1.1  christos   sreloc = NULL;
   4026  1.1  christos 
   4027  1.6  christos   rel_end = relocs + sec->reloc_count;
   4028  1.1  christos   for (rel = relocs; rel < rel_end; rel++)
   4029  1.1  christos     {
   4030  1.1  christos       unsigned long r_symndx;
   4031  1.1  christos       enum elf_ppc_reloc_type r_type;
   4032  1.1  christos       struct elf_link_hash_entry *h;
   4033  1.1  christos       int tls_type;
   4034  1.1  christos       struct plt_entry **ifunc;
   4035  1.1  christos 
   4036  1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   4037  1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   4038  1.1  christos 	h = NULL;
   4039  1.1  christos       else
   4040  1.1  christos 	{
   4041  1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   4042  1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   4043  1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   4044  1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   4045  1.1  christos 
   4046  1.1  christos 	  /* PR15323, ref flags aren't set for references in the same
   4047  1.1  christos 	     object.  */
   4048  1.1  christos 	  h->root.non_ir_ref = 1;
   4049  1.1  christos 	}
   4050  1.1  christos 
   4051  1.1  christos       /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
   4052  1.1  christos 	 This shows up in particular in an R_PPC_ADDR32 in the eabi
   4053  1.1  christos 	 startup code.  */
   4054  1.1  christos       if (h != NULL
   4055  1.1  christos 	  && htab->got == NULL
   4056  1.1  christos 	  && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
   4057  1.1  christos 	{
   4058  1.1  christos 	  if (htab->elf.dynobj == NULL)
   4059  1.1  christos 	    htab->elf.dynobj = abfd;
   4060  1.6  christos 	  if (!ppc_elf_create_got (htab->elf.dynobj, info))
   4061  1.1  christos 	    return FALSE;
   4062  1.1  christos 	  BFD_ASSERT (h == htab->elf.hgot);
   4063  1.1  christos 	}
   4064  1.1  christos 
   4065  1.1  christos       tls_type = 0;
   4066  1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   4067  1.1  christos       ifunc = NULL;
   4068  1.1  christos       if (h == NULL && !htab->is_vxworks)
   4069  1.1  christos 	{
   4070  1.1  christos 	  Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4071  1.1  christos 							  abfd, r_symndx);
   4072  1.1  christos 	  if (isym == NULL)
   4073  1.1  christos 	    return FALSE;
   4074  1.1  christos 
   4075  1.1  christos 	  if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
   4076  1.1  christos 	    {
   4077  1.1  christos 	      /* Set PLT_IFUNC flag for this sym, no GOT entry yet.  */
   4078  1.1  christos 	      ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
   4079  1.6  christos 					     PLT_IFUNC);
   4080  1.1  christos 	      if (ifunc == NULL)
   4081  1.1  christos 		return FALSE;
   4082  1.1  christos 
   4083  1.1  christos 	      /* STT_GNU_IFUNC symbols must have a PLT entry;
   4084  1.1  christos 		 In a non-pie executable even when there are
   4085  1.1  christos 		 no plt calls.  */
   4086  1.6  christos 	      if (!bfd_link_pic (info)
   4087  1.1  christos 		  || is_branch_reloc (r_type))
   4088  1.1  christos 		{
   4089  1.1  christos 		  bfd_vma addend = 0;
   4090  1.1  christos 		  if (r_type == R_PPC_PLTREL24)
   4091  1.1  christos 		    {
   4092  1.1  christos 		      ppc_elf_tdata (abfd)->makes_plt_call = 1;
   4093  1.1  christos 		      if (bfd_link_pic (info))
   4094  1.1  christos 			addend = rel->r_addend;
   4095  1.1  christos 		    }
   4096  1.1  christos 		  if (!update_plt_info (abfd, ifunc, got2, addend))
   4097  1.1  christos 		    return FALSE;
   4098  1.1  christos 		}
   4099  1.1  christos 	    }
   4100  1.1  christos 	}
   4101  1.1  christos 
   4102  1.1  christos       if (!htab->is_vxworks
   4103  1.1  christos 	  && is_branch_reloc (r_type)
   4104  1.1  christos 	  && h != NULL
   4105  1.1  christos 	  && h == tga)
   4106  1.1  christos 	{
   4107  1.1  christos 	  if (rel != relocs
   4108  1.1  christos 	      && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
   4109  1.1  christos 		  || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
   4110  1.1  christos 	    /* We have a new-style __tls_get_addr call with a marker
   4111  1.1  christos 	       reloc.  */
   4112  1.1  christos 	    ;
   4113  1.1  christos 	  else
   4114  1.1  christos 	    /* Mark this section as having an old-style call.  */
   4115  1.1  christos 	    sec->has_tls_get_addr_call = 1;
   4116  1.1  christos 	}
   4117  1.1  christos 
   4118  1.1  christos       switch (r_type)
   4119  1.1  christos 	{
   4120  1.1  christos 	case R_PPC_TLSGD:
   4121  1.1  christos 	case R_PPC_TLSLD:
   4122  1.1  christos 	  /* These special tls relocs tie a call to __tls_get_addr with
   4123  1.1  christos 	     its parameter symbol.  */
   4124  1.1  christos 	  break;
   4125  1.1  christos 
   4126  1.1  christos 	case R_PPC_GOT_TLSLD16:
   4127  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   4128  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   4129  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   4130  1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   4131  1.1  christos 	  goto dogottls;
   4132  1.1  christos 
   4133  1.1  christos 	case R_PPC_GOT_TLSGD16:
   4134  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   4135  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   4136  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   4137  1.6  christos 	  tls_type = TLS_TLS | TLS_GD;
   4138  1.1  christos 	  goto dogottls;
   4139  1.1  christos 
   4140  1.1  christos 	case R_PPC_GOT_TPREL16:
   4141  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   4142  1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   4143  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   4144  1.1  christos 	  if (bfd_link_pic (info))
   4145  1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4146  1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   4147  1.1  christos 	  goto dogottls;
   4148  1.1  christos 
   4149  1.1  christos 	case R_PPC_GOT_DTPREL16:
   4150  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   4151  1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   4152  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   4153  1.1  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   4154  1.1  christos 	dogottls:
   4155  1.1  christos 	  sec->has_tls_reloc = 1;
   4156  1.1  christos 	  /* Fall thru */
   4157  1.1  christos 
   4158  1.1  christos 	  /* GOT16 relocations */
   4159  1.1  christos 	case R_PPC_GOT16:
   4160  1.1  christos 	case R_PPC_GOT16_LO:
   4161  1.1  christos 	case R_PPC_GOT16_HI:
   4162  1.1  christos 	case R_PPC_GOT16_HA:
   4163  1.1  christos 	  /* This symbol requires a global offset table entry.  */
   4164  1.1  christos 	  if (htab->got == NULL)
   4165  1.1  christos 	    {
   4166  1.1  christos 	      if (htab->elf.dynobj == NULL)
   4167  1.1  christos 		htab->elf.dynobj = abfd;
   4168  1.1  christos 	      if (!ppc_elf_create_got (htab->elf.dynobj, info))
   4169  1.1  christos 		return FALSE;
   4170  1.1  christos 	    }
   4171  1.1  christos 	  if (h != NULL)
   4172  1.1  christos 	    {
   4173  1.1  christos 	      h->got.refcount += 1;
   4174  1.1  christos 	      ppc_elf_hash_entry (h)->tls_mask |= tls_type;
   4175  1.1  christos 	    }
   4176  1.6  christos 	  else
   4177  1.1  christos 	    /* This is a global offset table entry for a local symbol.  */
   4178  1.1  christos 	    if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
   4179  1.1  christos 	      return FALSE;
   4180  1.1  christos 
   4181  1.1  christos 	  /* We may also need a plt entry if the symbol turns out to be
   4182  1.1  christos 	     an ifunc.  */
   4183  1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4184  1.1  christos 	    {
   4185  1.6  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4186  1.1  christos 		return FALSE;
   4187  1.1  christos 	    }
   4188  1.1  christos 	  break;
   4189  1.1  christos 
   4190  1.3  christos 	  /* Indirect .sdata relocation.  */
   4191  1.3  christos 	case R_PPC_EMB_SDAI16:
   4192  1.3  christos 	  if (bfd_link_pic (info))
   4193  1.1  christos 	    {
   4194  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4195  1.1  christos 	      return FALSE;
   4196  1.1  christos 	    }
   4197  1.1  christos 	  htab->sdata[0].sym->ref_regular = 1;
   4198  1.1  christos 	  if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
   4199  1.1  christos 						    h, rel))
   4200  1.1  christos 	    return FALSE;
   4201  1.1  christos 	  if (h != NULL)
   4202  1.1  christos 	    {
   4203  1.6  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4204  1.1  christos 	      h->non_got_ref = TRUE;
   4205  1.1  christos 	    }
   4206  1.1  christos 	  break;
   4207  1.1  christos 
   4208  1.3  christos 	  /* Indirect .sdata2 relocation.  */
   4209  1.3  christos 	case R_PPC_EMB_SDA2I16:
   4210  1.3  christos 	  if (bfd_link_pic (info))
   4211  1.1  christos 	    {
   4212  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4213  1.1  christos 	      return FALSE;
   4214  1.1  christos 	    }
   4215  1.1  christos 	  htab->sdata[1].sym->ref_regular = 1;
   4216  1.1  christos 	  if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
   4217  1.1  christos 						    h, rel))
   4218  1.1  christos 	    return FALSE;
   4219  1.3  christos 	  if (h != NULL)
   4220  1.3  christos 	    {
   4221  1.3  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4222  1.3  christos 	      h->non_got_ref = TRUE;
   4223  1.1  christos 	    }
   4224  1.1  christos 	  break;
   4225  1.1  christos 
   4226  1.1  christos 	case R_PPC_SDAREL16:
   4227  1.1  christos 	  htab->sdata[0].sym->ref_regular = 1;
   4228  1.1  christos 	  /* Fall thru */
   4229  1.1  christos 
   4230  1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   4231  1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   4232  1.1  christos 	case R_PPC_VLE_SDAREL_HI16A:
   4233  1.1  christos 	case R_PPC_VLE_SDAREL_HI16D:
   4234  1.1  christos 	case R_PPC_VLE_SDAREL_HA16A:
   4235  1.1  christos 	case R_PPC_VLE_SDAREL_HA16D:
   4236  1.1  christos 	  if (h != NULL)
   4237  1.1  christos 	    {
   4238  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4239  1.1  christos 	      h->non_got_ref = TRUE;
   4240  1.1  christos 	    }
   4241  1.1  christos 	  break;
   4242  1.1  christos 
   4243  1.1  christos 	case R_PPC_VLE_REL8:
   4244  1.1  christos 	case R_PPC_VLE_REL15:
   4245  1.1  christos 	case R_PPC_VLE_REL24:
   4246  1.1  christos 	case R_PPC_VLE_LO16A:
   4247  1.1  christos 	case R_PPC_VLE_LO16D:
   4248  1.6  christos 	case R_PPC_VLE_HI16A:
   4249  1.1  christos 	case R_PPC_VLE_HI16D:
   4250  1.1  christos 	case R_PPC_VLE_HA16A:
   4251  1.1  christos 	case R_PPC_VLE_HA16D:
   4252  1.1  christos 	  break;
   4253  1.3  christos 
   4254  1.1  christos 	case R_PPC_EMB_SDA2REL:
   4255  1.1  christos 	  if (bfd_link_pic (info))
   4256  1.1  christos 	    {
   4257  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4258  1.1  christos 	      return FALSE;
   4259  1.1  christos 	    }
   4260  1.1  christos 	  htab->sdata[1].sym->ref_regular = 1;
   4261  1.1  christos 	  if (h != NULL)
   4262  1.1  christos 	    {
   4263  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4264  1.1  christos 	      h->non_got_ref = TRUE;
   4265  1.6  christos 	    }
   4266  1.1  christos 	  break;
   4267  1.1  christos 
   4268  1.1  christos 	case R_PPC_VLE_SDA21_LO:
   4269  1.1  christos 	case R_PPC_VLE_SDA21:
   4270  1.1  christos 	case R_PPC_EMB_SDA21:
   4271  1.1  christos 	case R_PPC_EMB_RELSDA:
   4272  1.1  christos 	  if (bfd_link_pic (info))
   4273  1.1  christos 	    {
   4274  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4275  1.1  christos 	      return FALSE;
   4276  1.1  christos 	    }
   4277  1.1  christos 	  if (h != NULL)
   4278  1.1  christos 	    {
   4279  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4280  1.1  christos 	      h->non_got_ref = TRUE;
   4281  1.1  christos 	    }
   4282  1.6  christos 	  break;
   4283  1.1  christos 
   4284  1.1  christos 	case R_PPC_EMB_NADDR32:
   4285  1.1  christos 	case R_PPC_EMB_NADDR16:
   4286  1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   4287  1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   4288  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   4289  1.1  christos 	  if (bfd_link_pic (info))
   4290  1.1  christos 	    {
   4291  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4292  1.1  christos 	      return FALSE;
   4293  1.1  christos 	    }
   4294  1.1  christos 	  if (h != NULL)
   4295  1.1  christos 	    h->non_got_ref = TRUE;
   4296  1.1  christos 	  break;
   4297  1.1  christos 
   4298  1.1  christos 	case R_PPC_PLTREL24:
   4299  1.1  christos 	  if (h == NULL)
   4300  1.1  christos 	    break;
   4301  1.1  christos 	  /* Fall through */
   4302  1.1  christos 	case R_PPC_PLT32:
   4303  1.6  christos 	case R_PPC_PLTREL32:
   4304  1.1  christos 	case R_PPC_PLT16_LO:
   4305  1.1  christos 	case R_PPC_PLT16_HI:
   4306  1.6  christos 	case R_PPC_PLT16_HA:
   4307  1.6  christos #ifdef DEBUG
   4308  1.6  christos 	  fprintf (stderr, "Reloc requires a PLT entry\n");
   4309  1.6  christos #endif
   4310  1.6  christos 	  /* This symbol requires a procedure linkage table entry.  */
   4311  1.6  christos 	  if (h == NULL)
   4312  1.6  christos 	    {
   4313  1.6  christos 	      if (ifunc == NULL)
   4314  1.6  christos 		{
   4315  1.6  christos 		  /* It does not make sense to have a procedure linkage
   4316  1.6  christos 		     table entry for a non-ifunc local symbol.  */
   4317  1.1  christos 		  info->callbacks->einfo
   4318  1.1  christos 		    (_("%P: %H: %s reloc against local symbol\n"),
   4319  1.1  christos 		     abfd, sec, rel->r_offset,
   4320  1.1  christos 		     ppc_elf_howto_table[r_type]->name);
   4321  1.1  christos 		  bfd_set_error (bfd_error_bad_value);
   4322  1.1  christos 		  return FALSE;
   4323  1.1  christos 		}
   4324  1.1  christos 	    }
   4325  1.6  christos 	  else
   4326  1.1  christos 	    {
   4327  1.1  christos 	      bfd_vma addend = 0;
   4328  1.1  christos 
   4329  1.1  christos 	      if (r_type == R_PPC_PLTREL24)
   4330  1.1  christos 		{
   4331  1.1  christos 		  ppc_elf_tdata (abfd)->makes_plt_call = 1;
   4332  1.1  christos 		  if (bfd_link_pic (info))
   4333  1.1  christos 		    addend = rel->r_addend;
   4334  1.1  christos 		}
   4335  1.1  christos 	      h->needs_plt = 1;
   4336  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
   4337  1.1  christos 		return FALSE;
   4338  1.1  christos 	    }
   4339  1.1  christos 	  break;
   4340  1.1  christos 
   4341  1.1  christos 	  /* The following relocations don't need to propagate the
   4342  1.1  christos 	     relocation if linking a shared object since they are
   4343  1.1  christos 	     section relative.  */
   4344  1.1  christos 	case R_PPC_SECTOFF:
   4345  1.1  christos 	case R_PPC_SECTOFF_LO:
   4346  1.1  christos 	case R_PPC_SECTOFF_HI:
   4347  1.1  christos 	case R_PPC_SECTOFF_HA:
   4348  1.1  christos 	case R_PPC_DTPREL16:
   4349  1.1  christos 	case R_PPC_DTPREL16_LO:
   4350  1.1  christos 	case R_PPC_DTPREL16_HI:
   4351  1.1  christos 	case R_PPC_DTPREL16_HA:
   4352  1.6  christos 	case R_PPC_TOC16:
   4353  1.1  christos 	  break;
   4354  1.1  christos 
   4355  1.1  christos 	case R_PPC_REL16:
   4356  1.1  christos 	case R_PPC_REL16_LO:
   4357  1.1  christos 	case R_PPC_REL16_HI:
   4358  1.1  christos 	case R_PPC_REL16_HA:
   4359  1.1  christos 	case R_PPC_REL16DX_HA:
   4360  1.1  christos 	  ppc_elf_tdata (abfd)->has_rel16 = 1;
   4361  1.1  christos 	  break;
   4362  1.1  christos 
   4363  1.1  christos 	  /* These are just markers.  */
   4364  1.1  christos 	case R_PPC_TLS:
   4365  1.1  christos 	case R_PPC_EMB_MRKREF:
   4366  1.1  christos 	case R_PPC_NONE:
   4367  1.1  christos 	case R_PPC_max:
   4368  1.1  christos 	case R_PPC_RELAX:
   4369  1.1  christos 	case R_PPC_RELAX_PLT:
   4370  1.1  christos 	case R_PPC_RELAX_PLTREL24:
   4371  1.1  christos 	  break;
   4372  1.1  christos 
   4373  1.1  christos 	  /* These should only appear in dynamic objects.  */
   4374  1.1  christos 	case R_PPC_COPY:
   4375  1.1  christos 	case R_PPC_GLOB_DAT:
   4376  1.1  christos 	case R_PPC_JMP_SLOT:
   4377  1.1  christos 	case R_PPC_RELATIVE:
   4378  1.1  christos 	case R_PPC_IRELATIVE:
   4379  1.1  christos 	  break;
   4380  1.1  christos 
   4381  1.1  christos 	  /* These aren't handled yet.  We'll report an error later.  */
   4382  1.1  christos 	case R_PPC_ADDR30:
   4383  1.1  christos 	case R_PPC_EMB_RELSEC16:
   4384  1.1  christos 	case R_PPC_EMB_RELST_LO:
   4385  1.1  christos 	case R_PPC_EMB_RELST_HI:
   4386  1.1  christos 	case R_PPC_EMB_RELST_HA:
   4387  1.1  christos 	case R_PPC_EMB_BIT_FLD:
   4388  1.1  christos 	  break;
   4389  1.1  christos 
   4390  1.3  christos 	  /* This refers only to functions defined in the shared library.  */
   4391  1.3  christos 	case R_PPC_LOCAL24PC:
   4392  1.6  christos 	  if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
   4393  1.3  christos 	    {
   4394  1.6  christos 	      htab->plt_type = PLT_OLD;
   4395  1.6  christos 	      htab->old_bfd = abfd;
   4396  1.6  christos 	    }
   4397  1.6  christos 	  if (h != NULL && h->type == STT_GNU_IFUNC)
   4398  1.3  christos 	    {
   4399  1.3  christos 	      if (bfd_link_pic (info))
   4400  1.3  christos 		{
   4401  1.3  christos 		  info->callbacks->einfo
   4402  1.3  christos 		    (_("%P: %H: @local call to ifunc %s\n"),
   4403  1.3  christos 		     abfd, sec, rel->r_offset,
   4404  1.3  christos 		     h->root.root.string);
   4405  1.1  christos 		  bfd_set_error (bfd_error_bad_value);
   4406  1.1  christos 		  return FALSE;
   4407  1.1  christos 		}
   4408  1.1  christos 	      h->needs_plt = 1;
   4409  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4410  1.1  christos 		return FALSE;
   4411  1.1  christos 	    }
   4412  1.1  christos 	  break;
   4413  1.1  christos 
   4414  1.1  christos 	  /* This relocation describes the C++ object vtable hierarchy.
   4415  1.1  christos 	     Reconstruct it for later use during GC.  */
   4416  1.1  christos 	case R_PPC_GNU_VTINHERIT:
   4417  1.1  christos 	  if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
   4418  1.1  christos 	    return FALSE;
   4419  1.1  christos 	  break;
   4420  1.1  christos 
   4421  1.1  christos 	  /* This relocation describes which C++ vtable entries are actually
   4422  1.1  christos 	     used.  Record for later use during GC.  */
   4423  1.1  christos 	case R_PPC_GNU_VTENTRY:
   4424  1.1  christos 	  BFD_ASSERT (h != NULL);
   4425  1.1  christos 	  if (h != NULL
   4426  1.1  christos 	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
   4427  1.1  christos 	    return FALSE;
   4428  1.1  christos 	  break;
   4429  1.6  christos 
   4430  1.1  christos 	  /* We shouldn't really be seeing these.  */
   4431  1.1  christos 	case R_PPC_TPREL32:
   4432  1.1  christos 	case R_PPC_TPREL16:
   4433  1.1  christos 	case R_PPC_TPREL16_LO:
   4434  1.1  christos 	case R_PPC_TPREL16_HI:
   4435  1.1  christos 	case R_PPC_TPREL16_HA:
   4436  1.1  christos 	  if (bfd_link_pic (info))
   4437  1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4438  1.1  christos 	  goto dodyn;
   4439  1.1  christos 
   4440  1.1  christos 	  /* Nor these.  */
   4441  1.1  christos 	case R_PPC_DTPMOD32:
   4442  1.6  christos 	case R_PPC_DTPREL32:
   4443  1.1  christos 	  goto dodyn;
   4444  1.1  christos 
   4445  1.1  christos 	case R_PPC_REL32:
   4446  1.1  christos 	  if (h == NULL
   4447  1.1  christos 	      && got2 != NULL
   4448  1.1  christos 	      && (sec->flags & SEC_CODE) != 0
   4449  1.1  christos 	      && bfd_link_pic (info)
   4450  1.1  christos 	      && htab->plt_type == PLT_UNSET)
   4451  1.1  christos 	    {
   4452  1.1  christos 	      /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
   4453  1.1  christos 		 the start of a function, which assembles to a REL32
   4454  1.1  christos 		 reference to .got2.  If we detect one of these, then
   4455  1.1  christos 		 force the old PLT layout because the linker cannot
   4456  1.1  christos 		 reliably deduce the GOT pointer value needed for
   4457  1.1  christos 		 PLT call stubs.  */
   4458  1.1  christos 	      asection *s;
   4459  1.1  christos 	      Elf_Internal_Sym *isym;
   4460  1.1  christos 
   4461  1.1  christos 	      isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4462  1.1  christos 					    abfd, r_symndx);
   4463  1.1  christos 	      if (isym == NULL)
   4464  1.1  christos 		return FALSE;
   4465  1.1  christos 
   4466  1.1  christos 	      s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4467  1.1  christos 	      if (s == got2)
   4468  1.1  christos 		{
   4469  1.1  christos 		  htab->plt_type = PLT_OLD;
   4470  1.1  christos 		  htab->old_bfd = abfd;
   4471  1.1  christos 		}
   4472  1.1  christos 	    }
   4473  1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   4474  1.1  christos 	    break;
   4475  1.1  christos 	  /* fall through */
   4476  1.1  christos 
   4477  1.6  christos 	case R_PPC_ADDR32:
   4478  1.1  christos 	case R_PPC_ADDR16:
   4479  1.1  christos 	case R_PPC_ADDR16_LO:
   4480  1.1  christos 	case R_PPC_ADDR16_HI:
   4481  1.1  christos 	case R_PPC_ADDR16_HA:
   4482  1.1  christos 	case R_PPC_UADDR32:
   4483  1.1  christos 	case R_PPC_UADDR16:
   4484  1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4485  1.1  christos 	    {
   4486  1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4487  1.5  christos 		 a function defined in a dynamic object.  */
   4488  1.5  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4489  1.5  christos 		return FALSE;
   4490  1.5  christos 
   4491  1.1  christos 	      /* We may need a copy reloc too.  */
   4492  1.1  christos 	      h->non_got_ref = 1;
   4493  1.1  christos 	      h->pointer_equality_needed = 1;
   4494  1.1  christos 	      if (r_type == R_PPC_ADDR16_HA)
   4495  1.1  christos 		ppc_elf_hash_entry (h)->has_addr16_ha = 1;
   4496  1.1  christos 	      if (r_type == R_PPC_ADDR16_LO)
   4497  1.1  christos 		ppc_elf_hash_entry (h)->has_addr16_lo = 1;
   4498  1.1  christos 	    }
   4499  1.1  christos 	  goto dodyn;
   4500  1.1  christos 
   4501  1.1  christos 	case R_PPC_REL24:
   4502  1.1  christos 	case R_PPC_REL14:
   4503  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   4504  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   4505  1.1  christos 	  if (h == NULL)
   4506  1.1  christos 	    break;
   4507  1.1  christos 	  if (h == htab->elf.hgot)
   4508  1.1  christos 	    {
   4509  1.1  christos 	      if (htab->plt_type == PLT_UNSET)
   4510  1.1  christos 		{
   4511  1.1  christos 		  htab->plt_type = PLT_OLD;
   4512  1.1  christos 		  htab->old_bfd = abfd;
   4513  1.1  christos 		}
   4514  1.1  christos 	      break;
   4515  1.6  christos 	    }
   4516  1.1  christos 	  /* fall through */
   4517  1.1  christos 
   4518  1.1  christos 	case R_PPC_ADDR24:
   4519  1.1  christos 	case R_PPC_ADDR14:
   4520  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   4521  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   4522  1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4523  1.1  christos 	    {
   4524  1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4525  1.1  christos 		 a function defined in a dynamic object.  */
   4526  1.1  christos 	      h->needs_plt = 1;
   4527  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4528  1.1  christos 		return FALSE;
   4529  1.1  christos 	      break;
   4530  1.1  christos 	    }
   4531  1.1  christos 
   4532  1.1  christos 	dodyn:
   4533  1.1  christos 	  /* If we are creating a shared library, and this is a reloc
   4534  1.1  christos 	     against a global symbol, or a non PC relative reloc
   4535  1.1  christos 	     against a local symbol, then we need to copy the reloc
   4536  1.1  christos 	     into the shared library.  However, if we are linking with
   4537  1.1  christos 	     -Bsymbolic, we do not need to copy a reloc against a
   4538  1.1  christos 	     global symbol which is defined in an object we are
   4539  1.1  christos 	     including in the link (i.e., DEF_REGULAR is set).  At
   4540  1.1  christos 	     this point we have not seen all the input files, so it is
   4541  1.1  christos 	     possible that DEF_REGULAR is not set now but will be set
   4542  1.1  christos 	     later (it is never cleared).  In case of a weak definition,
   4543  1.1  christos 	     DEF_REGULAR may be cleared later by a strong definition in
   4544  1.1  christos 	     a shared library.  We account for that possibility below by
   4545  1.1  christos 	     storing information in the dyn_relocs field of the hash
   4546  1.1  christos 	     table entry.  A similar situation occurs when creating
   4547  1.6  christos 	     shared libraries and symbol visibility changes render the
   4548  1.1  christos 	     symbol local.
   4549  1.1  christos 
   4550  1.1  christos 	     If on the other hand, we are creating an executable, we
   4551  1.1  christos 	     may need to keep relocations for symbols satisfied by a
   4552  1.1  christos 	     dynamic library if we manage to avoid copy relocs for the
   4553  1.1  christos 	     symbol.  */
   4554  1.6  christos 	  if ((bfd_link_pic (info)
   4555  1.1  christos 	       && (must_be_dyn_reloc (info, r_type)
   4556  1.1  christos 		   || (h != NULL
   4557  1.1  christos 		       && (!SYMBOLIC_BIND (info, h)
   4558  1.1  christos 			   || h->root.type == bfd_link_hash_defweak
   4559  1.1  christos 			   || !h->def_regular))))
   4560  1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   4561  1.1  christos 		  && !bfd_link_pic (info)
   4562  1.1  christos 		  && h != NULL
   4563  1.1  christos 		  && (h->root.type == bfd_link_hash_defweak
   4564  1.1  christos 		      || !h->def_regular)))
   4565  1.1  christos 	    {
   4566  1.1  christos #ifdef DEBUG
   4567  1.1  christos 	      fprintf (stderr,
   4568  1.1  christos 		       "ppc_elf_check_relocs needs to "
   4569  1.1  christos 		       "create relocation for %s\n",
   4570  1.1  christos 		       (h && h->root.root.string
   4571  1.1  christos 			? h->root.root.string : "<unknown>"));
   4572  1.1  christos #endif
   4573  1.1  christos 	      if (sreloc == NULL)
   4574  1.1  christos 		{
   4575  1.1  christos 		  if (htab->elf.dynobj == NULL)
   4576  1.1  christos 		    htab->elf.dynobj = abfd;
   4577  1.1  christos 
   4578  1.1  christos 		  sreloc = _bfd_elf_make_dynamic_reloc_section
   4579  1.1  christos 		    (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
   4580  1.1  christos 
   4581  1.1  christos 		  if (sreloc == NULL)
   4582  1.1  christos 		    return FALSE;
   4583  1.1  christos 		}
   4584  1.1  christos 
   4585  1.1  christos 	      /* If this is a global symbol, we count the number of
   4586  1.1  christos 		 relocations we need for this symbol.  */
   4587  1.1  christos 	      if (h != NULL)
   4588  1.1  christos 		{
   4589  1.1  christos 		  struct elf_dyn_relocs *p;
   4590  1.1  christos 		  struct elf_dyn_relocs **rel_head;
   4591  1.1  christos 
   4592  1.1  christos 		  rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
   4593  1.1  christos 		  p = *rel_head;
   4594  1.1  christos 		  if (p == NULL || p->sec != sec)
   4595  1.1  christos 		    {
   4596  1.1  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4597  1.1  christos 		      if (p == NULL)
   4598  1.1  christos 			return FALSE;
   4599  1.1  christos 		      p->next = *rel_head;
   4600  1.1  christos 		      *rel_head = p;
   4601  1.1  christos 		      p->sec = sec;
   4602  1.1  christos 		      p->count = 0;
   4603  1.1  christos 		      p->pc_count = 0;
   4604  1.1  christos 		    }
   4605  1.1  christos 		  p->count += 1;
   4606  1.1  christos 		  if (!must_be_dyn_reloc (info, r_type))
   4607  1.1  christos 		    p->pc_count += 1;
   4608  1.1  christos 		}
   4609  1.1  christos 	      else
   4610  1.1  christos 		{
   4611  1.1  christos 		  /* Track dynamic relocs needed for local syms too.
   4612  1.1  christos 		     We really need local syms available to do this
   4613  1.1  christos 		     easily.  Oh well.  */
   4614  1.1  christos 		  struct ppc_dyn_relocs *p;
   4615  1.1  christos 		  struct ppc_dyn_relocs **rel_head;
   4616  1.1  christos 		  bfd_boolean is_ifunc;
   4617  1.1  christos 		  asection *s;
   4618  1.1  christos 		  void *vpp;
   4619  1.1  christos 		  Elf_Internal_Sym *isym;
   4620  1.1  christos 
   4621  1.1  christos 		  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4622  1.1  christos 						abfd, r_symndx);
   4623  1.1  christos 		  if (isym == NULL)
   4624  1.1  christos 		    return FALSE;
   4625  1.1  christos 
   4626  1.1  christos 		  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4627  1.1  christos 		  if (s == NULL)
   4628  1.1  christos 		    s = sec;
   4629  1.1  christos 
   4630  1.1  christos 		  vpp = &elf_section_data (s)->local_dynrel;
   4631  1.1  christos 		  rel_head = (struct ppc_dyn_relocs **) vpp;
   4632  1.1  christos 		  is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
   4633  1.1  christos 		  p = *rel_head;
   4634  1.1  christos 		  if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
   4635  1.1  christos 		    p = p->next;
   4636  1.1  christos 		  if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
   4637  1.1  christos 		    {
   4638  1.1  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4639  1.1  christos 		      if (p == NULL)
   4640  1.1  christos 			return FALSE;
   4641  1.1  christos 		      p->next = *rel_head;
   4642  1.1  christos 		      *rel_head = p;
   4643  1.1  christos 		      p->sec = sec;
   4644  1.1  christos 		      p->ifunc = is_ifunc;
   4645  1.1  christos 		      p->count = 0;
   4646  1.1  christos 		    }
   4647  1.1  christos 		  p->count += 1;
   4648  1.1  christos 		}
   4649  1.1  christos 	    }
   4650  1.1  christos 
   4651  1.1  christos 	  break;
   4652  1.1  christos 	}
   4653  1.1  christos     }
   4654  1.1  christos 
   4655  1.1  christos   return TRUE;
   4656  1.1  christos }
   4657  1.1  christos 
   4658  1.1  christos 
   4660  1.1  christos /* Merge object attributes from IBFD into OBFD.  Raise an error if
   4661  1.1  christos    there are conflicting attributes.  */
   4662  1.1  christos static bfd_boolean
   4663  1.1  christos ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
   4664  1.1  christos {
   4665  1.1  christos   obj_attribute *in_attr, *in_attrs;
   4666  1.1  christos   obj_attribute *out_attr, *out_attrs;
   4667  1.1  christos 
   4668  1.1  christos   if (!elf_known_obj_attributes_proc (obfd)[0].i)
   4669  1.1  christos     {
   4670  1.1  christos       /* This is the first object.  Copy the attributes.  */
   4671  1.1  christos       _bfd_elf_copy_obj_attributes (ibfd, obfd);
   4672  1.1  christos 
   4673  1.1  christos       /* Use the Tag_null value to indicate the attributes have been
   4674  1.1  christos 	 initialized.  */
   4675  1.1  christos       elf_known_obj_attributes_proc (obfd)[0].i = 1;
   4676  1.1  christos 
   4677  1.1  christos       return TRUE;
   4678  1.1  christos     }
   4679  1.1  christos 
   4680  1.1  christos   in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
   4681  1.1  christos   out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
   4682  1.1  christos 
   4683  1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
   4684  1.1  christos      non-conflicting ones.  */
   4685  1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
   4686  1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
   4687  1.1  christos   if (in_attr->i != out_attr->i)
   4688  1.1  christos     {
   4689  1.1  christos       out_attr->type = 1;
   4690  1.1  christos       if (out_attr->i == 0)
   4691  1.1  christos 	out_attr->i = in_attr->i;
   4692  1.1  christos       else if (in_attr->i == 0)
   4693  1.1  christos 	;
   4694  1.1  christos       else if (out_attr->i == 1 && in_attr->i == 2)
   4695  1.1  christos 	_bfd_error_handler
   4696  1.1  christos 	  (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
   4697  1.1  christos       else if (out_attr->i == 1 && in_attr->i == 3)
   4698  1.1  christos 	_bfd_error_handler
   4699  1.1  christos 	  (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
   4700  1.1  christos 	  obfd, ibfd);
   4701  1.1  christos       else if (out_attr->i == 3 && in_attr->i == 1)
   4702  1.1  christos 	_bfd_error_handler
   4703  1.1  christos 	  (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
   4704  1.1  christos 	  ibfd, obfd);
   4705  1.1  christos       else if (out_attr->i == 3 && in_attr->i == 2)
   4706  1.1  christos 	_bfd_error_handler
   4707  1.1  christos 	  (_("Warning: %B uses soft float, %B uses single-precision hard float"),
   4708  1.1  christos 	  ibfd, obfd);
   4709  1.1  christos       else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
   4710  1.1  christos 	_bfd_error_handler
   4711  1.1  christos 	  (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
   4712  1.1  christos       else if (in_attr->i > 3)
   4713  1.1  christos 	_bfd_error_handler
   4714  1.1  christos 	  (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
   4715  1.1  christos 	   in_attr->i);
   4716  1.1  christos       else
   4717  1.1  christos 	_bfd_error_handler
   4718  1.1  christos 	  (_("Warning: %B uses unknown floating point ABI %d"), obfd,
   4719  1.1  christos 	   out_attr->i);
   4720  1.1  christos     }
   4721  1.1  christos 
   4722  1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
   4723  1.1  christos      merge non-conflicting ones.  */
   4724  1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
   4725  1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
   4726  1.1  christos   if (in_attr->i != out_attr->i)
   4727  1.1  christos     {
   4728  1.1  christos       const char *in_abi = NULL, *out_abi = NULL;
   4729  1.1  christos 
   4730  1.1  christos       switch (in_attr->i)
   4731  1.1  christos 	{
   4732  1.1  christos 	case 1: in_abi = "generic"; break;
   4733  1.1  christos 	case 2: in_abi = "AltiVec"; break;
   4734  1.1  christos 	case 3: in_abi = "SPE"; break;
   4735  1.1  christos 	}
   4736  1.1  christos 
   4737  1.1  christos       switch (out_attr->i)
   4738  1.1  christos 	{
   4739  1.1  christos 	case 1: out_abi = "generic"; break;
   4740  1.1  christos 	case 2: out_abi = "AltiVec"; break;
   4741  1.1  christos 	case 3: out_abi = "SPE"; break;
   4742  1.1  christos 	}
   4743  1.1  christos 
   4744  1.1  christos       out_attr->type = 1;
   4745  1.1  christos       if (out_attr->i == 0)
   4746  1.1  christos 	out_attr->i = in_attr->i;
   4747  1.1  christos       else if (in_attr->i == 0)
   4748  1.1  christos 	;
   4749  1.1  christos       /* For now, allow generic to transition to AltiVec or SPE
   4750  1.1  christos 	 without a warning.  If GCC marked files with their stack
   4751  1.1  christos 	 alignment and used don't-care markings for files which are
   4752  1.1  christos 	 not affected by the vector ABI, we could warn about this
   4753  1.1  christos 	 case too.  */
   4754  1.1  christos       else if (out_attr->i == 1)
   4755  1.1  christos 	out_attr->i = in_attr->i;
   4756  1.1  christos       else if (in_attr->i == 1)
   4757  1.1  christos 	;
   4758  1.1  christos       else if (in_abi == NULL)
   4759  1.1  christos 	_bfd_error_handler
   4760  1.1  christos 	  (_("Warning: %B uses unknown vector ABI %d"), ibfd,
   4761  1.1  christos 	   in_attr->i);
   4762  1.1  christos       else if (out_abi == NULL)
   4763  1.1  christos 	_bfd_error_handler
   4764  1.1  christos 	  (_("Warning: %B uses unknown vector ABI %d"), obfd,
   4765  1.1  christos 	   in_attr->i);
   4766  1.1  christos       else
   4767  1.1  christos 	_bfd_error_handler
   4768  1.1  christos 	  (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
   4769  1.1  christos 	   ibfd, obfd, in_abi, out_abi);
   4770  1.1  christos     }
   4771  1.1  christos 
   4772  1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
   4773  1.1  christos      and merge non-conflicting ones.  */
   4774  1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4775  1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4776  1.1  christos   if (in_attr->i != out_attr->i)
   4777  1.1  christos     {
   4778  1.1  christos       out_attr->type = 1;
   4779  1.1  christos       if (out_attr->i == 0)
   4780  1.1  christos        out_attr->i = in_attr->i;
   4781  1.1  christos       else if (in_attr->i == 0)
   4782  1.1  christos        ;
   4783  1.1  christos       else if (out_attr->i == 1 && in_attr->i == 2)
   4784  1.1  christos        _bfd_error_handler
   4785  1.1  christos          (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
   4786  1.1  christos       else if (out_attr->i == 2 && in_attr->i == 1)
   4787  1.1  christos        _bfd_error_handler
   4788  1.1  christos          (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
   4789  1.1  christos       else if (in_attr->i > 2)
   4790  1.1  christos        _bfd_error_handler
   4791  1.1  christos          (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
   4792  1.1  christos           in_attr->i);
   4793  1.1  christos       else
   4794  1.1  christos        _bfd_error_handler
   4795  1.1  christos          (_("Warning: %B uses unknown small structure return convention %d"), obfd,
   4796  1.1  christos           out_attr->i);
   4797  1.1  christos     }
   4798  1.1  christos 
   4799  1.1  christos   /* Merge Tag_compatibility attributes and any common GNU ones.  */
   4800  1.1  christos   _bfd_elf_merge_object_attributes (ibfd, obfd);
   4801  1.1  christos 
   4802  1.1  christos   return TRUE;
   4803  1.1  christos }
   4804  1.1  christos 
   4805  1.1  christos /* Merge backend specific data from an object file to the output
   4806  1.1  christos    object file when linking.  */
   4807  1.1  christos 
   4808  1.1  christos static bfd_boolean
   4809  1.1  christos ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
   4810  1.1  christos {
   4811  1.1  christos   flagword old_flags;
   4812  1.1  christos   flagword new_flags;
   4813  1.1  christos   bfd_boolean error;
   4814  1.1  christos 
   4815  1.1  christos   if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
   4816  1.1  christos     return TRUE;
   4817  1.1  christos 
   4818  1.1  christos   /* Check if we have the same endianness.  */
   4819  1.1  christos   if (! _bfd_generic_verify_endian_match (ibfd, obfd))
   4820  1.1  christos     return FALSE;
   4821  1.1  christos 
   4822  1.1  christos   if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
   4823  1.1  christos     return FALSE;
   4824  1.1  christos 
   4825  1.1  christos   new_flags = elf_elfheader (ibfd)->e_flags;
   4826  1.1  christos   old_flags = elf_elfheader (obfd)->e_flags;
   4827  1.1  christos   if (!elf_flags_init (obfd))
   4828  1.1  christos     {
   4829  1.1  christos       /* First call, no flags set.  */
   4830  1.1  christos       elf_flags_init (obfd) = TRUE;
   4831  1.1  christos       elf_elfheader (obfd)->e_flags = new_flags;
   4832  1.1  christos     }
   4833  1.1  christos 
   4834  1.1  christos   /* Compatible flags are ok.  */
   4835  1.1  christos   else if (new_flags == old_flags)
   4836  1.1  christos     ;
   4837  1.1  christos 
   4838  1.1  christos   /* Incompatible flags.  */
   4839  1.1  christos   else
   4840  1.1  christos     {
   4841  1.1  christos       /* Warn about -mrelocatable mismatch.  Allow -mrelocatable-lib
   4842  1.1  christos 	 to be linked with either.  */
   4843  1.1  christos       error = FALSE;
   4844  1.1  christos       if ((new_flags & EF_PPC_RELOCATABLE) != 0
   4845  1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
   4846  1.1  christos 	{
   4847  1.1  christos 	  error = TRUE;
   4848  1.1  christos 	  (*_bfd_error_handler)
   4849  1.1  christos 	    (_("%B: compiled with -mrelocatable and linked with "
   4850  1.1  christos 	       "modules compiled normally"), ibfd);
   4851  1.1  christos 	}
   4852  1.1  christos       else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
   4853  1.1  christos 	       && (old_flags & EF_PPC_RELOCATABLE) != 0)
   4854  1.1  christos 	{
   4855  1.1  christos 	  error = TRUE;
   4856  1.1  christos 	  (*_bfd_error_handler)
   4857  1.1  christos 	    (_("%B: compiled normally and linked with "
   4858  1.1  christos 	       "modules compiled with -mrelocatable"), ibfd);
   4859  1.1  christos 	}
   4860  1.1  christos 
   4861  1.1  christos       /* The output is -mrelocatable-lib iff both the input files are.  */
   4862  1.1  christos       if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
   4863  1.1  christos 	elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
   4864  1.1  christos 
   4865  1.1  christos       /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
   4866  1.1  christos 	 but each input file is either -mrelocatable or -mrelocatable-lib.  */
   4867  1.1  christos       if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
   4868  1.1  christos 	  && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
   4869  1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
   4870  1.1  christos 	elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
   4871  1.1  christos 
   4872  1.1  christos       /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
   4873  1.1  christos 	 any module uses it.  */
   4874  1.1  christos       elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
   4875  1.1  christos 
   4876  1.1  christos       new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   4877  1.1  christos       old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   4878  1.1  christos 
   4879  1.1  christos       /* Warn about any other mismatches.  */
   4880  1.1  christos       if (new_flags != old_flags)
   4881  1.1  christos 	{
   4882  1.1  christos 	  error = TRUE;
   4883  1.1  christos 	  (*_bfd_error_handler)
   4884  1.1  christos 	    (_("%B: uses different e_flags (0x%lx) fields "
   4885  1.1  christos 	       "than previous modules (0x%lx)"),
   4886  1.1  christos 	     ibfd, (long) new_flags, (long) old_flags);
   4887  1.1  christos 	}
   4888  1.1  christos 
   4889  1.1  christos       if (error)
   4890  1.1  christos 	{
   4891  1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   4892  1.3  christos 	  return FALSE;
   4893  1.3  christos 	}
   4894  1.3  christos     }
   4895  1.1  christos 
   4896  1.1  christos   return TRUE;
   4897  1.3  christos }
   4898  1.1  christos 
   4899  1.3  christos static void
   4900  1.3  christos ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc,
   4901  1.3  christos 		     bfd_vma value,
   4902  1.1  christos 		     split16_format_type split16_format)
   4903  1.3  christos 
   4904  1.3  christos {
   4905  1.1  christos   unsigned int insn, top5;
   4906  1.1  christos 
   4907  1.1  christos   insn = bfd_get_32 (output_bfd, loc);
   4908  1.1  christos   top5 = value & 0xf800;
   4909  1.1  christos   top5 = top5 << (split16_format == split16a_type ? 9 : 5);
   4910  1.1  christos   insn |= top5;
   4911  1.1  christos   insn |= value & 0x7ff;
   4912  1.3  christos   bfd_put_32 (output_bfd, insn, loc);
   4913  1.1  christos }
   4914  1.1  christos 
   4915  1.1  christos 
   4916  1.1  christos /* Choose which PLT scheme to use, and set .plt flags appropriately.
   4918  1.1  christos    Returns -1 on error, 0 for old PLT, 1 for new PLT.  */
   4919  1.1  christos int
   4920  1.1  christos ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
   4921  1.1  christos 			   struct bfd_link_info *info)
   4922  1.1  christos {
   4923  1.3  christos   struct ppc_elf_link_hash_table *htab;
   4924  1.1  christos   flagword flags;
   4925  1.6  christos 
   4926  1.1  christos   htab = ppc_elf_hash_table (info);
   4927  1.1  christos 
   4928  1.1  christos   if (htab->plt_type == PLT_UNSET)
   4929  1.1  christos     {
   4930  1.1  christos       struct elf_link_hash_entry *h;
   4931  1.1  christos 
   4932  1.1  christos       if (htab->params->plt_style == PLT_OLD)
   4933  1.1  christos 	htab->plt_type = PLT_OLD;
   4934  1.1  christos       else if (bfd_link_pic (info)
   4935  1.1  christos 	       && htab->elf.dynamic_sections_created
   4936  1.1  christos 	       && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
   4937  1.1  christos 					     FALSE, FALSE, TRUE)) != NULL
   4938  1.1  christos 	       && (h->type == STT_FUNC
   4939  1.1  christos 		   || h->needs_plt)
   4940  1.1  christos 	       && h->ref_regular
   4941  1.1  christos 	       && !(SYMBOL_CALLS_LOCAL (info, h)
   4942  1.1  christos 		    || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   4943  1.1  christos 			&& h->root.type == bfd_link_hash_undefweak)))
   4944  1.1  christos 	{
   4945  1.3  christos 	  /* Profiling of shared libs (and pies) is not supported with
   4946  1.1  christos 	     secure plt, because ppc32 does profiling before a
   4947  1.1  christos 	     function prologue and a secure plt pic call stubs needs
   4948  1.1  christos 	     r30 to be set up.  */
   4949  1.1  christos 	  htab->plt_type = PLT_OLD;
   4950  1.1  christos 	}
   4951  1.1  christos       else
   4952  1.1  christos 	{
   4953  1.3  christos 	  bfd *ibfd;
   4954  1.1  christos 	  enum ppc_elf_plt_type plt_type = htab->params->plt_style;
   4955  1.1  christos 
   4956  1.1  christos 	  /* Look through the reloc flags left by ppc_elf_check_relocs.
   4957  1.1  christos 	     Use the old style bss plt if a file makes plt calls
   4958  1.1  christos 	     without using the new relocs, and if ld isn't given
   4959  1.1  christos 	     --secure-plt and we never see REL16 relocs.  */
   4960  1.1  christos 	  if (plt_type == PLT_UNSET)
   4961  1.1  christos 	    plt_type = PLT_OLD;
   4962  1.1  christos 	  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
   4963  1.1  christos 	    if (is_ppc_elf (ibfd))
   4964  1.1  christos 	      {
   4965  1.1  christos 		if (ppc_elf_tdata (ibfd)->has_rel16)
   4966  1.1  christos 		  plt_type = PLT_NEW;
   4967  1.1  christos 		else if (ppc_elf_tdata (ibfd)->makes_plt_call)
   4968  1.3  christos 		  {
   4969  1.1  christos 		    plt_type = PLT_OLD;
   4970  1.1  christos 		    htab->old_bfd = ibfd;
   4971  1.1  christos 		    break;
   4972  1.1  christos 		  }
   4973  1.1  christos 	      }
   4974  1.1  christos 	  htab->plt_type = plt_type;
   4975  1.1  christos 	}
   4976  1.1  christos     }
   4977  1.1  christos   if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
   4978  1.1  christos     {
   4979  1.1  christos       if (htab->old_bfd != NULL)
   4980  1.1  christos 	info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
   4981  1.1  christos 				htab->old_bfd);
   4982  1.1  christos       else
   4983  1.1  christos 	info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
   4984  1.1  christos     }
   4985  1.1  christos 
   4986  1.1  christos   BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
   4987  1.1  christos 
   4988  1.1  christos   if (htab->plt_type == PLT_NEW)
   4989  1.1  christos     {
   4990  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
   4991  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   4992  1.1  christos 
   4993  1.1  christos       /* The new PLT is a loaded section.  */
   4994  1.1  christos       if (htab->plt != NULL
   4995  1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
   4996  1.1  christos 	return -1;
   4997  1.1  christos 
   4998  1.1  christos       /* The new GOT is not executable.  */
   4999  1.1  christos       if (htab->got != NULL
   5000  1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
   5001  1.1  christos 	return -1;
   5002  1.1  christos     }
   5003  1.1  christos   else
   5004  1.1  christos     {
   5005  1.1  christos       /* Stop an unused .glink section from affecting .text alignment.  */
   5006  1.1  christos       if (htab->glink != NULL
   5007  1.1  christos 	  && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
   5008  1.1  christos 	return -1;
   5009  1.1  christos     }
   5010  1.1  christos   return htab->plt_type == PLT_NEW;
   5011  1.1  christos }
   5012  1.1  christos 
   5013  1.1  christos /* Return the section that should be marked against GC for a given
   5015  1.1  christos    relocation.  */
   5016  1.1  christos 
   5017  1.1  christos static asection *
   5018  1.1  christos ppc_elf_gc_mark_hook (asection *sec,
   5019  1.1  christos 		      struct bfd_link_info *info,
   5020  1.1  christos 		      Elf_Internal_Rela *rel,
   5021  1.1  christos 		      struct elf_link_hash_entry *h,
   5022  1.1  christos 		      Elf_Internal_Sym *sym)
   5023  1.1  christos {
   5024  1.1  christos   if (h != NULL)
   5025  1.1  christos     switch (ELF32_R_TYPE (rel->r_info))
   5026  1.1  christos       {
   5027  1.1  christos       case R_PPC_GNU_VTINHERIT:
   5028  1.1  christos       case R_PPC_GNU_VTENTRY:
   5029  1.1  christos 	return NULL;
   5030  1.1  christos       }
   5031  1.1  christos 
   5032  1.1  christos   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
   5033  1.1  christos }
   5034  1.1  christos 
   5035  1.1  christos /* Update the got, plt and dynamic reloc reference counts for the
   5036  1.1  christos    section being removed.  */
   5037  1.1  christos 
   5038  1.1  christos static bfd_boolean
   5039  1.1  christos ppc_elf_gc_sweep_hook (bfd *abfd,
   5040  1.1  christos 		       struct bfd_link_info *info,
   5041  1.6  christos 		       asection *sec,
   5042  1.1  christos 		       const Elf_Internal_Rela *relocs)
   5043  1.1  christos {
   5044  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5045  1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   5046  1.1  christos   struct elf_link_hash_entry **sym_hashes;
   5047  1.1  christos   bfd_signed_vma *local_got_refcounts;
   5048  1.1  christos   const Elf_Internal_Rela *rel, *relend;
   5049  1.1  christos   asection *got2;
   5050  1.1  christos 
   5051  1.1  christos   if (bfd_link_relocatable (info))
   5052  1.1  christos     return TRUE;
   5053  1.1  christos 
   5054  1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   5055  1.1  christos     return TRUE;
   5056  1.1  christos 
   5057  1.1  christos   elf_section_data (sec)->local_dynrel = NULL;
   5058  1.1  christos 
   5059  1.1  christos   htab = ppc_elf_hash_table (info);
   5060  1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   5061  1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   5062  1.1  christos   local_got_refcounts = elf_local_got_refcounts (abfd);
   5063  1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   5064  1.1  christos 
   5065  1.1  christos   relend = relocs + sec->reloc_count;
   5066  1.1  christos   for (rel = relocs; rel < relend; rel++)
   5067  1.1  christos     {
   5068  1.1  christos       unsigned long r_symndx;
   5069  1.1  christos       enum elf_ppc_reloc_type r_type;
   5070  1.1  christos       struct elf_link_hash_entry *h = NULL;
   5071  1.1  christos 
   5072  1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   5073  1.1  christos       if (r_symndx >= symtab_hdr->sh_info)
   5074  1.1  christos 	{
   5075  1.1  christos 	  struct elf_dyn_relocs **pp, *p;
   5076  1.1  christos 	  struct ppc_elf_link_hash_entry *eh;
   5077  1.1  christos 
   5078  1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5079  1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   5080  1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   5081  1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5082  1.1  christos 	  eh = (struct ppc_elf_link_hash_entry *) h;
   5083  1.1  christos 
   5084  1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
   5085  1.1  christos 	    if (p->sec == sec)
   5086  1.1  christos 	      {
   5087  1.6  christos 		/* Everything must go for SEC.  */
   5088  1.1  christos 		*pp = p->next;
   5089  1.1  christos 		break;
   5090  1.1  christos 	      }
   5091  1.1  christos 	}
   5092  1.1  christos 
   5093  1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   5094  1.1  christos       if (!htab->is_vxworks
   5095  1.1  christos 	  && h == NULL
   5096  1.1  christos 	  && local_got_refcounts != NULL
   5097  1.1  christos 	  && (!bfd_link_pic (info)
   5098  1.1  christos 	      || is_branch_reloc (r_type)))
   5099  1.1  christos 	{
   5100  1.6  christos 	  struct plt_entry **local_plt = (struct plt_entry **)
   5101  1.1  christos 	    (local_got_refcounts + symtab_hdr->sh_info);
   5102  1.1  christos 	  char *local_got_tls_masks = (char *)
   5103  1.1  christos 	    (local_plt + symtab_hdr->sh_info);
   5104  1.1  christos 	  if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
   5105  1.1  christos 	    {
   5106  1.1  christos 	      struct plt_entry **ifunc = local_plt + r_symndx;
   5107  1.1  christos 	      bfd_vma addend = 0;
   5108  1.1  christos 	      struct plt_entry *ent;
   5109  1.1  christos 
   5110  1.1  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
   5111  1.1  christos 		addend = rel->r_addend;
   5112  1.1  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   5113  1.1  christos 	      if (ent->plt.refcount > 0)
   5114  1.1  christos 		ent->plt.refcount -= 1;
   5115  1.1  christos 	      continue;
   5116  1.1  christos 	    }
   5117  1.1  christos 	}
   5118  1.1  christos 
   5119  1.1  christos       switch (r_type)
   5120  1.1  christos 	{
   5121  1.1  christos 	case R_PPC_GOT_TLSLD16:
   5122  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   5123  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   5124  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   5125  1.1  christos 	case R_PPC_GOT_TLSGD16:
   5126  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   5127  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   5128  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   5129  1.1  christos 	case R_PPC_GOT_TPREL16:
   5130  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   5131  1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   5132  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   5133  1.1  christos 	case R_PPC_GOT_DTPREL16:
   5134  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   5135  1.6  christos 	case R_PPC_GOT_DTPREL16_HI:
   5136  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   5137  1.1  christos 	case R_PPC_GOT16:
   5138  1.1  christos 	case R_PPC_GOT16_LO:
   5139  1.1  christos 	case R_PPC_GOT16_HI:
   5140  1.1  christos 	case R_PPC_GOT16_HA:
   5141  1.1  christos 	  if (h != NULL)
   5142  1.1  christos 	    {
   5143  1.1  christos 	      if (h->got.refcount > 0)
   5144  1.1  christos 		h->got.refcount--;
   5145  1.1  christos 	      if (!bfd_link_pic (info))
   5146  1.1  christos 		{
   5147  1.1  christos 		  struct plt_entry *ent;
   5148  1.1  christos 
   5149  1.1  christos 		  ent = find_plt_ent (&h->plt.plist, NULL, 0);
   5150  1.1  christos 		  if (ent != NULL && ent->plt.refcount > 0)
   5151  1.1  christos 		    ent->plt.refcount -= 1;
   5152  1.1  christos 		}
   5153  1.1  christos 	    }
   5154  1.1  christos 	  else if (local_got_refcounts != NULL)
   5155  1.1  christos 	    {
   5156  1.1  christos 	      if (local_got_refcounts[r_symndx] > 0)
   5157  1.1  christos 		local_got_refcounts[r_symndx]--;
   5158  1.1  christos 	    }
   5159  1.1  christos 	  break;
   5160  1.1  christos 
   5161  1.1  christos 	case R_PPC_REL24:
   5162  1.1  christos 	case R_PPC_REL14:
   5163  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   5164  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   5165  1.1  christos 	case R_PPC_REL32:
   5166  1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   5167  1.1  christos 	    break;
   5168  1.1  christos 	  /* Fall thru */
   5169  1.1  christos 
   5170  1.1  christos 	case R_PPC_ADDR32:
   5171  1.6  christos 	case R_PPC_ADDR24:
   5172  1.1  christos 	case R_PPC_ADDR16:
   5173  1.1  christos 	case R_PPC_ADDR16_LO:
   5174  1.1  christos 	case R_PPC_ADDR16_HI:
   5175  1.1  christos 	case R_PPC_ADDR16_HA:
   5176  1.1  christos 	case R_PPC_ADDR14:
   5177  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   5178  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   5179  1.1  christos 	case R_PPC_UADDR32:
   5180  1.1  christos 	case R_PPC_UADDR16:
   5181  1.1  christos 	  if (bfd_link_pic (info))
   5182  1.1  christos 	    break;
   5183  1.1  christos 
   5184  1.1  christos 	case R_PPC_PLT32:
   5185  1.6  christos 	case R_PPC_PLTREL24:
   5186  1.1  christos 	case R_PPC_PLTREL32:
   5187  1.1  christos 	case R_PPC_PLT16_LO:
   5188  1.1  christos 	case R_PPC_PLT16_HI:
   5189  1.1  christos 	case R_PPC_PLT16_HA:
   5190  1.1  christos 	  if (h != NULL)
   5191  1.1  christos 	    {
   5192  1.1  christos 	      bfd_vma addend = 0;
   5193  1.1  christos 	      struct plt_entry *ent;
   5194  1.1  christos 
   5195  1.1  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
   5196  1.1  christos 		addend = rel->r_addend;
   5197  1.1  christos 	      ent = find_plt_ent (&h->plt.plist, got2, addend);
   5198  1.1  christos 	      if (ent != NULL && ent->plt.refcount > 0)
   5199  1.1  christos 		ent->plt.refcount -= 1;
   5200  1.1  christos 	    }
   5201  1.1  christos 	  break;
   5202  1.1  christos 
   5203  1.1  christos 	default:
   5204  1.3  christos 	  break;
   5205  1.1  christos 	}
   5206  1.1  christos     }
   5207  1.1  christos   return TRUE;
   5208  1.1  christos }
   5209  1.1  christos 
   5210  1.1  christos /* Set plt output section type, htab->tls_get_addr, and call the
   5212  1.5  christos    generic ELF tls_setup function.  */
   5213  1.5  christos 
   5214  1.3  christos asection *
   5215  1.1  christos ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
   5216  1.1  christos {
   5217  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5218  1.1  christos 
   5219  1.1  christos   htab = ppc_elf_hash_table (info);
   5220  1.1  christos   htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   5221  1.1  christos 					     FALSE, FALSE, TRUE);
   5222  1.1  christos   if (htab->plt_type != PLT_NEW)
   5223  1.1  christos     htab->params->no_tls_get_addr_opt = TRUE;
   5224  1.1  christos 
   5225  1.1  christos   if (!htab->params->no_tls_get_addr_opt)
   5226  1.1  christos     {
   5227  1.1  christos       struct elf_link_hash_entry *opt, *tga;
   5228  1.1  christos       opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
   5229  1.1  christos 				  FALSE, FALSE, TRUE);
   5230  1.1  christos       if (opt != NULL
   5231  1.1  christos 	  && (opt->root.type == bfd_link_hash_defined
   5232  1.1  christos 	      || opt->root.type == bfd_link_hash_defweak))
   5233  1.1  christos 	{
   5234  1.1  christos 	  /* If glibc supports an optimized __tls_get_addr call stub,
   5235  1.1  christos 	     signalled by the presence of __tls_get_addr_opt, and we'll
   5236  1.1  christos 	     be calling __tls_get_addr via a plt call stub, then
   5237  1.1  christos 	     make __tls_get_addr point to __tls_get_addr_opt.  */
   5238  1.1  christos 	  tga = htab->tls_get_addr;
   5239  1.1  christos 	  if (htab->elf.dynamic_sections_created
   5240  1.1  christos 	      && tga != NULL
   5241  1.1  christos 	      && (tga->type == STT_FUNC
   5242  1.1  christos 		  || tga->needs_plt)
   5243  1.1  christos 	      && !(SYMBOL_CALLS_LOCAL (info, tga)
   5244  1.1  christos 		   || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
   5245  1.6  christos 		       && tga->root.type == bfd_link_hash_undefweak)))
   5246  1.1  christos 	    {
   5247  1.1  christos 	      struct plt_entry *ent;
   5248  1.1  christos 	      for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
   5249  1.1  christos 		if (ent->plt.refcount > 0)
   5250  1.1  christos 		  break;
   5251  1.1  christos 	      if (ent != NULL)
   5252  1.1  christos 		{
   5253  1.1  christos 		  tga->root.type = bfd_link_hash_indirect;
   5254  1.1  christos 		  tga->root.u.i.link = &opt->root;
   5255  1.1  christos 		  ppc_elf_copy_indirect_symbol (info, opt, tga);
   5256  1.1  christos 		  opt->forced_local = 0;
   5257  1.1  christos 		  if (opt->dynindx != -1)
   5258  1.1  christos 		    {
   5259  1.1  christos 		      /* Use __tls_get_addr_opt in dynamic relocations.  */
   5260  1.3  christos 		      opt->dynindx = -1;
   5261  1.1  christos 		      _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   5262  1.1  christos 					      opt->dynstr_index);
   5263  1.1  christos 		      if (!bfd_elf_link_record_dynamic_symbol (info, opt))
   5264  1.1  christos 			return FALSE;
   5265  1.1  christos 		    }
   5266  1.1  christos 		  htab->tls_get_addr = opt;
   5267  1.1  christos 		}
   5268  1.1  christos 	    }
   5269  1.1  christos 	}
   5270  1.1  christos       else
   5271  1.1  christos 	htab->params->no_tls_get_addr_opt = TRUE;
   5272  1.1  christos     }
   5273  1.1  christos   if (htab->plt_type == PLT_NEW
   5274  1.1  christos       && htab->plt != NULL
   5275  1.1  christos       && htab->plt->output_section != NULL)
   5276  1.1  christos     {
   5277  1.1  christos       elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
   5278  1.1  christos       elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
   5279  1.1  christos     }
   5280  1.1  christos 
   5281  1.1  christos   return _bfd_elf_tls_setup (obfd, info);
   5282  1.1  christos }
   5283  1.1  christos 
   5284  1.1  christos /* Return TRUE iff REL is a branch reloc with a global symbol matching
   5285  1.1  christos    HASH.  */
   5286  1.1  christos 
   5287  1.1  christos static bfd_boolean
   5288  1.1  christos branch_reloc_hash_match (const bfd *ibfd,
   5289  1.1  christos 			 const Elf_Internal_Rela *rel,
   5290  1.1  christos 			 const struct elf_link_hash_entry *hash)
   5291  1.1  christos {
   5292  1.1  christos   Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5293  1.1  christos   enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
   5294  1.1  christos   unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
   5295  1.1  christos 
   5296  1.1  christos   if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
   5297  1.1  christos     {
   5298  1.1  christos       struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
   5299  1.1  christos       struct elf_link_hash_entry *h;
   5300  1.1  christos 
   5301  1.1  christos       h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5302  1.1  christos       while (h->root.type == bfd_link_hash_indirect
   5303  1.1  christos 	     || h->root.type == bfd_link_hash_warning)
   5304  1.1  christos 	h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5305  1.1  christos       if (h == hash)
   5306  1.1  christos 	return TRUE;
   5307  1.1  christos     }
   5308  1.1  christos   return FALSE;
   5309  1.1  christos }
   5310  1.1  christos 
   5311  1.1  christos /* Run through all the TLS relocs looking for optimization
   5312  1.6  christos    opportunities.  */
   5313  1.1  christos 
   5314  1.1  christos bfd_boolean
   5315  1.1  christos ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
   5316  1.1  christos 		      struct bfd_link_info *info)
   5317  1.1  christos {
   5318  1.1  christos   bfd *ibfd;
   5319  1.1  christos   asection *sec;
   5320  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5321  1.1  christos   int pass;
   5322  1.1  christos 
   5323  1.1  christos   if (!bfd_link_executable (info))
   5324  1.1  christos     return TRUE;
   5325  1.1  christos 
   5326  1.3  christos   htab = ppc_elf_hash_table (info);
   5327  1.1  christos   if (htab == NULL)
   5328  1.1  christos     return FALSE;
   5329  1.1  christos 
   5330  1.1  christos   /* Make two passes through the relocs.  First time check that tls
   5331  1.1  christos      relocs involved in setting up a tls_get_addr call are indeed
   5332  1.1  christos      followed by such a call.  If they are not, don't do any tls
   5333  1.1  christos      optimization.  On the second pass twiddle tls_mask flags to
   5334  1.1  christos      notify relocate_section that optimization can be done, and
   5335  1.1  christos      adjust got and plt refcounts.  */
   5336  1.1  christos   for (pass = 0; pass < 2; ++pass)
   5337  1.1  christos     for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   5338  1.1  christos       {
   5339  1.1  christos 	Elf_Internal_Sym *locsyms = NULL;
   5340  1.1  christos 	Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5341  1.1  christos 	asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
   5342  1.1  christos 
   5343  1.1  christos 	for (sec = ibfd->sections; sec != NULL; sec = sec->next)
   5344  1.1  christos 	  if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
   5345  1.1  christos 	    {
   5346  1.1  christos 	      Elf_Internal_Rela *relstart, *rel, *relend;
   5347  1.1  christos 	      int expecting_tls_get_addr = 0;
   5348  1.1  christos 
   5349  1.1  christos 	      /* Read the relocations.  */
   5350  1.1  christos 	      relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
   5351  1.1  christos 						    info->keep_memory);
   5352  1.1  christos 	      if (relstart == NULL)
   5353  1.1  christos 		return FALSE;
   5354  1.1  christos 
   5355  1.1  christos 	      relend = relstart + sec->reloc_count;
   5356  1.1  christos 	      for (rel = relstart; rel < relend; rel++)
   5357  1.1  christos 		{
   5358  1.1  christos 		  enum elf_ppc_reloc_type r_type;
   5359  1.1  christos 		  unsigned long r_symndx;
   5360  1.1  christos 		  struct elf_link_hash_entry *h = NULL;
   5361  1.1  christos 		  char *tls_mask;
   5362  1.1  christos 		  char tls_set, tls_clear;
   5363  1.1  christos 		  bfd_boolean is_local;
   5364  1.1  christos 		  bfd_signed_vma *got_count;
   5365  1.1  christos 
   5366  1.1  christos 		  r_symndx = ELF32_R_SYM (rel->r_info);
   5367  1.1  christos 		  if (r_symndx >= symtab_hdr->sh_info)
   5368  1.1  christos 		    {
   5369  1.1  christos 		      struct elf_link_hash_entry **sym_hashes;
   5370  1.1  christos 
   5371  1.1  christos 		      sym_hashes = elf_sym_hashes (ibfd);
   5372  1.1  christos 		      h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5373  1.1  christos 		      while (h->root.type == bfd_link_hash_indirect
   5374  1.1  christos 			     || h->root.type == bfd_link_hash_warning)
   5375  1.1  christos 			h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5376  1.1  christos 		    }
   5377  1.1  christos 
   5378  1.1  christos 		  is_local = FALSE;
   5379  1.1  christos 		  if (h == NULL
   5380  1.1  christos 		      || !h->def_dynamic)
   5381  1.1  christos 		    is_local = TRUE;
   5382  1.1  christos 
   5383  1.1  christos 		  r_type = ELF32_R_TYPE (rel->r_info);
   5384  1.1  christos 		  /* If this section has old-style __tls_get_addr calls
   5385  1.1  christos 		     without marker relocs, then check that each
   5386  1.1  christos 		     __tls_get_addr call reloc is preceded by a reloc
   5387  1.1  christos 		     that conceivably belongs to the __tls_get_addr arg
   5388  1.1  christos 		     setup insn.  If we don't find matching arg setup
   5389  1.1  christos 		     relocs, don't do any tls optimization.  */
   5390  1.1  christos 		  if (pass == 0
   5391  1.1  christos 		      && sec->has_tls_get_addr_call
   5392  1.1  christos 		      && h != NULL
   5393  1.1  christos 		      && h == htab->tls_get_addr
   5394  1.1  christos 		      && !expecting_tls_get_addr
   5395  1.1  christos 		      && is_branch_reloc (r_type))
   5396  1.1  christos 		    {
   5397  1.1  christos 		      info->callbacks->minfo ("%H __tls_get_addr lost arg, "
   5398  1.1  christos 					      "TLS optimization disabled\n",
   5399  1.1  christos 					      ibfd, sec, rel->r_offset);
   5400  1.1  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5401  1.1  christos 			free (relstart);
   5402  1.1  christos 		      return TRUE;
   5403  1.1  christos 		    }
   5404  1.1  christos 
   5405  1.1  christos 		  expecting_tls_get_addr = 0;
   5406  1.1  christos 		  switch (r_type)
   5407  1.1  christos 		    {
   5408  1.1  christos 		    case R_PPC_GOT_TLSLD16:
   5409  1.1  christos 		    case R_PPC_GOT_TLSLD16_LO:
   5410  1.1  christos 		      expecting_tls_get_addr = 1;
   5411  1.1  christos 		      /* Fall thru */
   5412  1.1  christos 
   5413  1.1  christos 		    case R_PPC_GOT_TLSLD16_HI:
   5414  1.1  christos 		    case R_PPC_GOT_TLSLD16_HA:
   5415  1.1  christos 		      /* These relocs should never be against a symbol
   5416  1.1  christos 			 defined in a shared lib.  Leave them alone if
   5417  1.1  christos 			 that turns out to be the case.  */
   5418  1.1  christos 		      if (!is_local)
   5419  1.1  christos 			continue;
   5420  1.1  christos 
   5421  1.1  christos 		      /* LD -> LE */
   5422  1.1  christos 		      tls_set = 0;
   5423  1.1  christos 		      tls_clear = TLS_LD;
   5424  1.1  christos 		      break;
   5425  1.1  christos 
   5426  1.1  christos 		    case R_PPC_GOT_TLSGD16:
   5427  1.1  christos 		    case R_PPC_GOT_TLSGD16_LO:
   5428  1.1  christos 		      expecting_tls_get_addr = 1;
   5429  1.1  christos 		      /* Fall thru */
   5430  1.1  christos 
   5431  1.1  christos 		    case R_PPC_GOT_TLSGD16_HI:
   5432  1.1  christos 		    case R_PPC_GOT_TLSGD16_HA:
   5433  1.1  christos 		      if (is_local)
   5434  1.1  christos 			/* GD -> LE */
   5435  1.1  christos 			tls_set = 0;
   5436  1.1  christos 		      else
   5437  1.1  christos 			/* GD -> IE */
   5438  1.1  christos 			tls_set = TLS_TLS | TLS_TPRELGD;
   5439  1.1  christos 		      tls_clear = TLS_GD;
   5440  1.1  christos 		      break;
   5441  1.1  christos 
   5442  1.1  christos 		    case R_PPC_GOT_TPREL16:
   5443  1.1  christos 		    case R_PPC_GOT_TPREL16_LO:
   5444  1.1  christos 		    case R_PPC_GOT_TPREL16_HI:
   5445  1.1  christos 		    case R_PPC_GOT_TPREL16_HA:
   5446  1.1  christos 		      if (is_local)
   5447  1.1  christos 			{
   5448  1.1  christos 			  /* IE -> LE */
   5449  1.1  christos 			  tls_set = 0;
   5450  1.1  christos 			  tls_clear = TLS_TPREL;
   5451  1.1  christos 			  break;
   5452  1.1  christos 			}
   5453  1.1  christos 		      else
   5454  1.1  christos 			continue;
   5455  1.1  christos 
   5456  1.1  christos 		    case R_PPC_TLSGD:
   5457  1.1  christos 		    case R_PPC_TLSLD:
   5458  1.1  christos 		      expecting_tls_get_addr = 2;
   5459  1.1  christos 		      tls_set = 0;
   5460  1.1  christos 		      tls_clear = 0;
   5461  1.1  christos 		      break;
   5462  1.1  christos 
   5463  1.1  christos 		    default:
   5464  1.1  christos 		      continue;
   5465  1.1  christos 		    }
   5466  1.1  christos 
   5467  1.1  christos 		  if (pass == 0)
   5468  1.1  christos 		    {
   5469  1.1  christos 		      if (!expecting_tls_get_addr
   5470  1.1  christos 			  || (expecting_tls_get_addr == 1
   5471  1.1  christos 			      && !sec->has_tls_get_addr_call))
   5472  1.1  christos 			continue;
   5473  1.1  christos 
   5474  1.1  christos 		      if (rel + 1 < relend
   5475  1.1  christos 			  && branch_reloc_hash_match (ibfd, rel + 1,
   5476  1.1  christos 						      htab->tls_get_addr))
   5477  1.1  christos 			continue;
   5478  1.1  christos 
   5479  1.1  christos 		      /* Uh oh, we didn't find the expected call.  We
   5480  1.1  christos 			 could just mark this symbol to exclude it
   5481  1.1  christos 			 from tls optimization but it's safer to skip
   5482  1.1  christos 			 the entire optimization.  */
   5483  1.1  christos 		      info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
   5484  1.1  christos 						"TLS optimization disabled\n"),
   5485  1.6  christos 					      ibfd, sec, rel->r_offset);
   5486  1.1  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5487  1.1  christos 			free (relstart);
   5488  1.1  christos 		      return TRUE;
   5489  1.1  christos 		    }
   5490  1.1  christos 
   5491  1.1  christos 		  if (expecting_tls_get_addr)
   5492  1.1  christos 		    {
   5493  1.1  christos 		      struct plt_entry *ent;
   5494  1.1  christos 		      bfd_vma addend = 0;
   5495  1.1  christos 
   5496  1.1  christos 		      if (bfd_link_pic (info)
   5497  1.1  christos 			  && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
   5498  1.1  christos 			addend = rel[1].r_addend;
   5499  1.1  christos 		      ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
   5500  1.1  christos 					  got2, addend);
   5501  1.1  christos 		      if (ent != NULL && ent->plt.refcount > 0)
   5502  1.1  christos 			ent->plt.refcount -= 1;
   5503  1.1  christos 
   5504  1.1  christos 		      if (expecting_tls_get_addr == 2)
   5505  1.1  christos 			continue;
   5506  1.1  christos 		    }
   5507  1.1  christos 
   5508  1.1  christos 		  if (h != NULL)
   5509  1.1  christos 		    {
   5510  1.1  christos 		      tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
   5511  1.1  christos 		      got_count = &h->got.refcount;
   5512  1.1  christos 		    }
   5513  1.1  christos 		  else
   5514  1.1  christos 		    {
   5515  1.1  christos 		      bfd_signed_vma *lgot_refs;
   5516  1.1  christos 		      struct plt_entry **local_plt;
   5517  1.1  christos 		      char *lgot_masks;
   5518  1.1  christos 
   5519  1.1  christos 		      if (locsyms == NULL)
   5520  1.1  christos 			{
   5521  1.1  christos 			  locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
   5522  1.1  christos 			  if (locsyms == NULL)
   5523  1.1  christos 			    locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
   5524  1.1  christos 							    symtab_hdr->sh_info,
   5525  1.1  christos 							    0, NULL, NULL, NULL);
   5526  1.1  christos 			  if (locsyms == NULL)
   5527  1.1  christos 			    {
   5528  1.1  christos 			      if (elf_section_data (sec)->relocs != relstart)
   5529  1.1  christos 				free (relstart);
   5530  1.1  christos 			      return FALSE;
   5531  1.1  christos 			    }
   5532  1.1  christos 			}
   5533  1.1  christos 		      lgot_refs = elf_local_got_refcounts (ibfd);
   5534  1.1  christos 		      if (lgot_refs == NULL)
   5535  1.1  christos 			abort ();
   5536  1.1  christos 		      local_plt = (struct plt_entry **)
   5537  1.1  christos 			(lgot_refs + symtab_hdr->sh_info);
   5538  1.1  christos 		      lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   5539  1.1  christos 		      tls_mask = &lgot_masks[r_symndx];
   5540  1.1  christos 		      got_count = &lgot_refs[r_symndx];
   5541  1.1  christos 		    }
   5542  1.1  christos 
   5543  1.1  christos 		  if (tls_set == 0)
   5544  1.1  christos 		    {
   5545  1.1  christos 		      /* We managed to get rid of a got entry.  */
   5546  1.1  christos 		      if (*got_count > 0)
   5547  1.1  christos 			*got_count -= 1;
   5548  1.1  christos 		    }
   5549  1.1  christos 
   5550  1.1  christos 		  *tls_mask |= tls_set;
   5551  1.1  christos 		  *tls_mask &= ~tls_clear;
   5552  1.1  christos 		}
   5553  1.1  christos 
   5554  1.1  christos 	      if (elf_section_data (sec)->relocs != relstart)
   5555  1.1  christos 		free (relstart);
   5556  1.1  christos 	    }
   5557  1.1  christos 
   5558  1.1  christos 	if (locsyms != NULL
   5559  1.1  christos 	    && (symtab_hdr->contents != (unsigned char *) locsyms))
   5560  1.1  christos 	  {
   5561  1.1  christos 	    if (!info->keep_memory)
   5562  1.1  christos 	      free (locsyms);
   5563  1.1  christos 	    else
   5564  1.1  christos 	      symtab_hdr->contents = (unsigned char *) locsyms;
   5565  1.1  christos 	  }
   5566  1.1  christos       }
   5567  1.1  christos   return TRUE;
   5568  1.1  christos }
   5569  1.1  christos 
   5570  1.1  christos /* Return true if we have dynamic relocs that apply to read-only sections.  */
   5572  1.1  christos 
   5573  1.1  christos static bfd_boolean
   5574  1.1  christos readonly_dynrelocs (struct elf_link_hash_entry *h)
   5575  1.1  christos {
   5576  1.1  christos   struct elf_dyn_relocs *p;
   5577  1.1  christos 
   5578  1.1  christos   for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
   5579  1.1  christos     {
   5580  1.1  christos       asection *s = p->sec->output_section;
   5581  1.1  christos 
   5582  1.1  christos       if (s != NULL
   5583  1.1  christos 	  && ((s->flags & (SEC_READONLY | SEC_ALLOC))
   5584  1.1  christos 	      == (SEC_READONLY | SEC_ALLOC)))
   5585  1.1  christos 	return TRUE;
   5586  1.1  christos     }
   5587  1.1  christos   return FALSE;
   5588  1.1  christos }
   5589  1.1  christos 
   5590  1.1  christos /* Adjust a symbol defined by a dynamic object and referenced by a
   5591  1.1  christos    regular object.  The current definition is in some section of the
   5592  1.1  christos    dynamic object, but we're not including those sections.  We have to
   5593  1.1  christos    change the definition to something the rest of the link can
   5594  1.1  christos    understand.  */
   5595  1.1  christos 
   5596  1.1  christos static bfd_boolean
   5597  1.1  christos ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
   5598  1.1  christos 			       struct elf_link_hash_entry *h)
   5599  1.1  christos {
   5600  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5601  1.1  christos   asection *s;
   5602  1.1  christos 
   5603  1.1  christos #ifdef DEBUG
   5604  1.1  christos   fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
   5605  1.1  christos 	   h->root.root.string);
   5606  1.1  christos #endif
   5607  1.1  christos 
   5608  1.1  christos   /* Make sure we know what is going on here.  */
   5609  1.1  christos   htab = ppc_elf_hash_table (info);
   5610  1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL
   5611  1.1  christos 	      && (h->needs_plt
   5612  1.1  christos 		  || h->type == STT_GNU_IFUNC
   5613  1.1  christos 		  || h->u.weakdef != NULL
   5614  1.1  christos 		  || (h->def_dynamic
   5615  1.1  christos 		      && h->ref_regular
   5616  1.1  christos 		      && !h->def_regular)));
   5617  1.1  christos 
   5618  1.1  christos   /* Deal with function syms.  */
   5619  1.1  christos   if (h->type == STT_FUNC
   5620  1.1  christos       || h->type == STT_GNU_IFUNC
   5621  1.1  christos       || h->needs_plt)
   5622  1.1  christos     {
   5623  1.1  christos       /* Clear procedure linkage table information for any symbol that
   5624  1.1  christos 	 won't need a .plt entry.  */
   5625  1.1  christos       struct plt_entry *ent;
   5626  1.1  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   5627  1.1  christos 	if (ent->plt.refcount > 0)
   5628  1.1  christos 	  break;
   5629  1.1  christos       if (ent == NULL
   5630  1.1  christos 	  || (h->type != STT_GNU_IFUNC
   5631  1.1  christos 	      && (SYMBOL_CALLS_LOCAL (info, h)
   5632  1.1  christos 		  || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   5633  1.1  christos 		      && h->root.type == bfd_link_hash_undefweak))))
   5634  1.1  christos 	{
   5635  1.3  christos 	  /* A PLT entry is not required/allowed when:
   5636  1.1  christos 
   5637  1.1  christos 	     1. We are not using ld.so; because then the PLT entry
   5638  1.1  christos 	     can't be set up, so we can't use one.  In this case,
   5639  1.3  christos 	     ppc_elf_adjust_dynamic_symbol won't even be called.
   5640  1.3  christos 
   5641  1.3  christos 	     2. GC has rendered the entry unused.
   5642  1.3  christos 
   5643  1.3  christos 	     3. We know for certain that a call to this symbol
   5644  1.3  christos 	     will go to this object, or will remain undefined.  */
   5645  1.3  christos 	  h->plt.plist = NULL;
   5646  1.3  christos 	  h->needs_plt = 0;
   5647  1.3  christos 	  h->pointer_equality_needed = 0;
   5648  1.3  christos 	}
   5649  1.3  christos       else
   5650  1.3  christos 	{
   5651  1.3  christos 	  /* Taking a function's address in a read/write section
   5652  1.3  christos 	     doesn't require us to define the function symbol in the
   5653  1.1  christos 	     executable on a plt call stub.  A dynamic reloc can
   5654  1.1  christos 	     be used instead.  */
   5655  1.1  christos 	  if (h->pointer_equality_needed
   5656  1.1  christos 	      && h->type != STT_GNU_IFUNC
   5657  1.1  christos 	      && !htab->is_vxworks
   5658  1.1  christos 	      && !ppc_elf_hash_entry (h)->has_sda_refs
   5659  1.1  christos 	      && !readonly_dynrelocs (h))
   5660  1.1  christos 	    {
   5661  1.1  christos 	      h->pointer_equality_needed = 0;
   5662  1.3  christos 	      h->non_got_ref = 0;
   5663  1.3  christos 	    }
   5664  1.3  christos 
   5665  1.3  christos 	  /* After adjust_dynamic_symbol, non_got_ref set in the
   5666  1.3  christos 	     non-shared case means that we have allocated space in
   5667  1.3  christos 	     .dynbss for the symbol and thus dyn_relocs for this
   5668  1.1  christos 	     symbol should be discarded.
   5669  1.1  christos 	     If we get here we know we are making a PLT entry for this
   5670  1.5  christos 	     symbol, and in an executable we'd normally resolve
   5671  1.1  christos 	     relocations against this symbol to the PLT entry.  Allow
   5672  1.1  christos 	     dynamic relocs if the reference is weak, and the dynamic
   5673  1.1  christos 	     relocs will not cause text relocation.  */
   5674  1.1  christos 	  else if (!h->ref_regular_nonweak
   5675  1.1  christos 		   && h->non_got_ref
   5676  1.1  christos 		   && h->type != STT_GNU_IFUNC
   5677  1.1  christos 		   && !htab->is_vxworks
   5678  1.1  christos 		   && !ppc_elf_hash_entry (h)->has_sda_refs
   5679  1.1  christos 		   && !readonly_dynrelocs (h))
   5680  1.1  christos 	    h->non_got_ref = 0;
   5681  1.1  christos 	}
   5682  1.1  christos       h->protected_def = 0;
   5683  1.1  christos       return TRUE;
   5684  1.1  christos     }
   5685  1.1  christos   else
   5686  1.1  christos     h->plt.plist = NULL;
   5687  1.1  christos 
   5688  1.1  christos   /* If this is a weak symbol, and there is a real definition, the
   5689  1.1  christos      processor independent code will have arranged for us to see the
   5690  1.1  christos      real definition first, and we can just use the same value.  */
   5691  1.1  christos   if (h->u.weakdef != NULL)
   5692  1.1  christos     {
   5693  1.1  christos       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
   5694  1.1  christos 		  || h->u.weakdef->root.type == bfd_link_hash_defweak);
   5695  1.1  christos       h->root.u.def.section = h->u.weakdef->root.u.def.section;
   5696  1.1  christos       h->root.u.def.value = h->u.weakdef->root.u.def.value;
   5697  1.6  christos       if (ELIMINATE_COPY_RELOCS)
   5698  1.5  christos 	h->non_got_ref = h->u.weakdef->non_got_ref;
   5699  1.5  christos       return TRUE;
   5700  1.5  christos     }
   5701  1.5  christos 
   5702  1.1  christos   /* This is a reference to a symbol defined by a dynamic object which
   5703  1.1  christos      is not a function.  */
   5704  1.1  christos 
   5705  1.1  christos   /* If we are creating a shared library, we must presume that the
   5706  1.5  christos      only references to the symbol are via the global offset table.
   5707  1.5  christos      For such cases we need not do anything here; the relocations will
   5708  1.5  christos      be handled correctly by relocate_section.  */
   5709  1.5  christos   if (bfd_link_pic (info))
   5710  1.5  christos     {
   5711  1.5  christos       h->protected_def = 0;
   5712  1.5  christos       return TRUE;
   5713  1.5  christos     }
   5714  1.5  christos 
   5715  1.5  christos   /* If there are no references to this symbol that do not use the
   5716  1.5  christos      GOT, we don't need to generate a copy reloc.  */
   5717  1.5  christos   if (!h->non_got_ref)
   5718  1.5  christos     {
   5719  1.5  christos       h->protected_def = 0;
   5720  1.5  christos       return TRUE;
   5721  1.5  christos     }
   5722  1.5  christos 
   5723  1.5  christos   /* Protected variables do not work with .dynbss.  The copy in
   5724  1.5  christos      .dynbss won't be used by the shared library with the protected
   5725  1.5  christos      definition for the variable.  Editing to PIC, or text relocations
   5726  1.5  christos      are preferable to an incorrect program.  */
   5727  1.5  christos   if (h->protected_def)
   5728  1.5  christos     {
   5729  1.5  christos       if (ELIMINATE_COPY_RELOCS
   5730  1.5  christos 	  && ppc_elf_hash_entry (h)->has_addr16_ha
   5731  1.5  christos 	  && ppc_elf_hash_entry (h)->has_addr16_lo
   5732  1.5  christos 	  && htab->params->pic_fixup == 0
   5733  1.1  christos 	  && info->disable_target_specific_optimizations <= 1)
   5734  1.1  christos 	htab->params->pic_fixup = 1;
   5735  1.1  christos       h->non_got_ref = 0;
   5736  1.1  christos       return TRUE;
   5737  1.1  christos     }
   5738  1.1  christos 
   5739  1.1  christos   /* If -z nocopyreloc was given, we won't generate them either.  */
   5740  1.1  christos   if (info->nocopyreloc)
   5741  1.1  christos     {
   5742  1.1  christos       h->non_got_ref = 0;
   5743  1.1  christos       return TRUE;
   5744  1.1  christos     }
   5745  1.1  christos 
   5746  1.1  christos    /* If we didn't find any dynamic relocs in read-only sections, then
   5747  1.1  christos       we'll be keeping the dynamic relocs and avoiding the copy reloc.
   5748  1.1  christos       We can't do this if there are any small data relocations.  This
   5749  1.1  christos       doesn't work on VxWorks, where we can not have dynamic
   5750  1.1  christos       relocations (other than copy and jump slot relocations) in an
   5751  1.1  christos       executable.  */
   5752  1.1  christos   if (ELIMINATE_COPY_RELOCS
   5753  1.1  christos       && !ppc_elf_hash_entry (h)->has_sda_refs
   5754  1.1  christos       && !htab->is_vxworks
   5755  1.1  christos       && !h->def_regular
   5756  1.1  christos       && !readonly_dynrelocs (h))
   5757  1.1  christos     {
   5758  1.1  christos       h->non_got_ref = 0;
   5759  1.1  christos       return TRUE;
   5760  1.1  christos     }
   5761  1.1  christos 
   5762  1.1  christos   /* We must allocate the symbol in our .dynbss section, which will
   5763  1.1  christos      become part of the .bss section of the executable.  There will be
   5764  1.1  christos      an entry for this symbol in the .dynsym section.  The dynamic
   5765  1.1  christos      object will contain position independent code, so all references
   5766  1.1  christos      from the dynamic object to this symbol will go through the global
   5767  1.1  christos      offset table.  The dynamic linker will use the .dynsym entry to
   5768  1.1  christos      determine the address it must put in the global offset table, so
   5769  1.1  christos      both the dynamic object and the regular object will refer to the
   5770  1.1  christos      same memory location for the variable.
   5771  1.1  christos 
   5772  1.1  christos      Of course, if the symbol is referenced using SDAREL relocs, we
   5773  1.1  christos      must instead allocate it in .sbss.  */
   5774  1.1  christos 
   5775  1.1  christos   if (ppc_elf_hash_entry (h)->has_sda_refs)
   5776  1.1  christos     s = htab->dynsbss;
   5777  1.1  christos   else
   5778  1.1  christos     s = htab->dynbss;
   5779  1.1  christos   BFD_ASSERT (s != NULL);
   5780  1.1  christos 
   5781  1.1  christos   /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
   5782  1.1  christos      copy the initial value out of the dynamic object and into the
   5783  1.1  christos      runtime process image.  We need to remember the offset into the
   5784  1.1  christos      .rela.bss section we are going to use.  */
   5785  1.1  christos   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
   5786  1.3  christos     {
   5787  1.1  christos       asection *srel;
   5788  1.1  christos 
   5789  1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   5790  1.1  christos 	srel = htab->relsbss;
   5791  1.1  christos       else
   5792  1.1  christos 	srel = htab->relbss;
   5793  1.1  christos       BFD_ASSERT (srel != NULL);
   5794  1.1  christos       srel->size += sizeof (Elf32_External_Rela);
   5795  1.1  christos       h->needs_copy = 1;
   5796  1.1  christos     }
   5797  1.1  christos 
   5798  1.1  christos   return _bfd_elf_adjust_dynamic_copy (info, h, s);
   5799  1.1  christos }
   5800  1.1  christos 
   5801  1.1  christos /* Generate a symbol to mark plt call stubs.  For non-PIC code the sym is
   5803  1.1  christos    xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
   5804  1.1  christos    specifying the addend on the plt relocation.  For -fpic code, the sym
   5805  1.1  christos    is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
   5806  1.6  christos    xxxxxxxx.got2.plt_pic32.<callee>.  */
   5807  1.1  christos 
   5808  1.1  christos static bfd_boolean
   5809  1.1  christos add_stub_sym (struct plt_entry *ent,
   5810  1.1  christos 	      struct elf_link_hash_entry *h,
   5811  1.1  christos 	      struct bfd_link_info *info)
   5812  1.1  christos {
   5813  1.1  christos   struct elf_link_hash_entry *sh;
   5814  1.1  christos   size_t len1, len2, len3;
   5815  1.1  christos   char *name;
   5816  1.1  christos   const char *stub;
   5817  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   5818  1.1  christos 
   5819  1.1  christos   if (bfd_link_pic (info))
   5820  1.1  christos     stub = ".plt_pic32.";
   5821  1.1  christos   else
   5822  1.1  christos     stub = ".plt_call32.";
   5823  1.1  christos 
   5824  1.1  christos   len1 = strlen (h->root.root.string);
   5825  1.1  christos   len2 = strlen (stub);
   5826  1.1  christos   len3 = 0;
   5827  1.1  christos   if (ent->sec)
   5828  1.1  christos     len3 = strlen (ent->sec->name);
   5829  1.1  christos   name = bfd_malloc (len1 + len2 + len3 + 9);
   5830  1.1  christos   if (name == NULL)
   5831  1.1  christos     return FALSE;
   5832  1.1  christos   sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
   5833  1.1  christos   if (ent->sec)
   5834  1.1  christos     memcpy (name + 8, ent->sec->name, len3);
   5835  1.1  christos   memcpy (name + 8 + len3, stub, len2);
   5836  1.1  christos   memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
   5837  1.5  christos   sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
   5838  1.1  christos   if (sh == NULL)
   5839  1.1  christos     return FALSE;
   5840  1.1  christos   if (sh->root.type == bfd_link_hash_new)
   5841  1.1  christos     {
   5842  1.1  christos       sh->root.type = bfd_link_hash_defined;
   5843  1.1  christos       sh->root.u.def.section = htab->glink;
   5844  1.1  christos       sh->root.u.def.value = ent->glink_offset;
   5845  1.1  christos       sh->ref_regular = 1;
   5846  1.1  christos       sh->def_regular = 1;
   5847  1.1  christos       sh->ref_regular_nonweak = 1;
   5848  1.1  christos       sh->forced_local = 1;
   5849  1.1  christos       sh->non_elf = 0;
   5850  1.1  christos       sh->root.linker_def = 1;
   5851  1.1  christos     }
   5852  1.1  christos   return TRUE;
   5853  1.1  christos }
   5854  1.1  christos 
   5855  1.1  christos /* Allocate NEED contiguous space in .got, and return the offset.
   5856  1.1  christos    Handles allocation of the got header when crossing 32k.  */
   5857  1.1  christos 
   5858  1.1  christos static bfd_vma
   5859  1.1  christos allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
   5860  1.1  christos {
   5861  1.1  christos   bfd_vma where;
   5862  1.1  christos   unsigned int max_before_header;
   5863  1.1  christos 
   5864  1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   5865  1.1  christos     {
   5866  1.1  christos       where = htab->got->size;
   5867  1.1  christos       htab->got->size += need;
   5868  1.1  christos     }
   5869  1.1  christos   else
   5870  1.1  christos     {
   5871  1.1  christos       max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
   5872  1.1  christos       if (need <= htab->got_gap)
   5873  1.1  christos 	{
   5874  1.1  christos 	  where = max_before_header - htab->got_gap;
   5875  1.1  christos 	  htab->got_gap -= need;
   5876  1.1  christos 	}
   5877  1.1  christos       else
   5878  1.1  christos 	{
   5879  1.1  christos 	  if (htab->got->size + need > max_before_header
   5880  1.1  christos 	      && htab->got->size <= max_before_header)
   5881  1.1  christos 	    {
   5882  1.1  christos 	      htab->got_gap = max_before_header - htab->got->size;
   5883  1.1  christos 	      htab->got->size = max_before_header + htab->got_header_size;
   5884  1.1  christos 	    }
   5885  1.1  christos 	  where = htab->got->size;
   5886  1.1  christos 	  htab->got->size += need;
   5887  1.1  christos 	}
   5888  1.1  christos     }
   5889  1.1  christos   return where;
   5890  1.1  christos }
   5891  1.1  christos 
   5892  1.1  christos /* Allocate space in associated reloc sections for dynamic relocs.  */
   5893  1.1  christos 
   5894  1.1  christos static bfd_boolean
   5895  1.1  christos allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
   5896  1.1  christos {
   5897  1.1  christos   struct bfd_link_info *info = inf;
   5898  1.1  christos   struct ppc_elf_link_hash_entry *eh;
   5899  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5900  1.1  christos   struct elf_dyn_relocs *p;
   5901  1.1  christos 
   5902  1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   5903  1.1  christos     return TRUE;
   5904  1.1  christos 
   5905  1.1  christos   htab = ppc_elf_hash_table (info);
   5906  1.1  christos   if (htab->elf.dynamic_sections_created
   5907  1.1  christos       || h->type == STT_GNU_IFUNC)
   5908  1.1  christos     {
   5909  1.1  christos       struct plt_entry *ent;
   5910  1.1  christos       bfd_boolean doneone = FALSE;
   5911  1.1  christos       bfd_vma plt_offset = 0, glink_offset = 0;
   5912  1.1  christos       bfd_boolean dyn;
   5913  1.1  christos 
   5914  1.1  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   5915  1.6  christos 	if (ent->plt.refcount > 0)
   5916  1.1  christos 	  {
   5917  1.1  christos 	    /* Make sure this symbol is output as a dynamic symbol.  */
   5918  1.1  christos 	    if (h->dynindx == -1
   5919  1.1  christos 		&& !h->forced_local
   5920  1.1  christos 		&& !h->def_regular
   5921  1.1  christos 		&& htab->elf.dynamic_sections_created)
   5922  1.1  christos 	      {
   5923  1.1  christos 		if (! bfd_elf_link_record_dynamic_symbol (info, h))
   5924  1.1  christos 		  return FALSE;
   5925  1.1  christos 	      }
   5926  1.1  christos 
   5927  1.1  christos 	    dyn = htab->elf.dynamic_sections_created;
   5928  1.1  christos 	    if (bfd_link_pic (info)
   5929  1.1  christos 		|| h->type == STT_GNU_IFUNC
   5930  1.1  christos 		|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
   5931  1.1  christos 	      {
   5932  1.1  christos 		asection *s = htab->plt;
   5933  1.6  christos 		if (!dyn || h->dynindx == -1)
   5934  1.1  christos 		  s = htab->iplt;
   5935  1.1  christos 
   5936  1.1  christos 		if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
   5937  1.1  christos 		  {
   5938  1.3  christos 		    if (!doneone)
   5939  1.1  christos 		      {
   5940  1.1  christos 			plt_offset = s->size;
   5941  1.1  christos 			s->size += 4;
   5942  1.6  christos 		      }
   5943  1.1  christos 		    ent->plt.offset = plt_offset;
   5944  1.1  christos 
   5945  1.1  christos 		    s = htab->glink;
   5946  1.1  christos 		    if (!doneone || bfd_link_pic (info))
   5947  1.1  christos 		      {
   5948  1.1  christos 			glink_offset = s->size;
   5949  1.1  christos 			s->size += GLINK_ENTRY_SIZE;
   5950  1.1  christos 			if (h == htab->tls_get_addr
   5951  1.3  christos 			    && !htab->params->no_tls_get_addr_opt)
   5952  1.1  christos 			  s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
   5953  1.1  christos 		      }
   5954  1.1  christos 		    if (!doneone
   5955  1.1  christos 			&& !bfd_link_pic (info)
   5956  1.1  christos 			&& h->def_dynamic
   5957  1.1  christos 			&& !h->def_regular)
   5958  1.1  christos 		      {
   5959  1.1  christos 			h->root.u.def.section = s;
   5960  1.1  christos 			h->root.u.def.value = glink_offset;
   5961  1.1  christos 		      }
   5962  1.1  christos 		    ent->glink_offset = glink_offset;
   5963  1.1  christos 
   5964  1.1  christos 		    if (htab->params->emit_stub_syms
   5965  1.1  christos 			&& !add_stub_sym (ent, h, info))
   5966  1.1  christos 		      return FALSE;
   5967  1.1  christos 		  }
   5968  1.1  christos 		else
   5969  1.1  christos 		  {
   5970  1.1  christos 		    if (!doneone)
   5971  1.1  christos 		      {
   5972  1.1  christos 			/* If this is the first .plt entry, make room
   5973  1.1  christos 			   for the special first entry.  */
   5974  1.1  christos 			if (s->size == 0)
   5975  1.1  christos 			  s->size += htab->plt_initial_entry_size;
   5976  1.1  christos 
   5977  1.1  christos 			/* The PowerPC PLT is actually composed of two
   5978  1.1  christos 			   parts, the first part is 2 words (for a load
   5979  1.1  christos 			   and a jump), and then there is a remaining
   5980  1.1  christos 			   word available at the end.  */
   5981  1.6  christos 			plt_offset = (htab->plt_initial_entry_size
   5982  1.1  christos 				      + (htab->plt_slot_size
   5983  1.1  christos 					 * ((s->size
   5984  1.1  christos 					     - htab->plt_initial_entry_size)
   5985  1.1  christos 					    / htab->plt_entry_size)));
   5986  1.1  christos 
   5987  1.1  christos 			/* If this symbol is not defined in a regular
   5988  1.1  christos 			   file, and we are not generating a shared
   5989  1.1  christos 			   library, then set the symbol to this location
   5990  1.1  christos 			   in the .plt.  This is to avoid text
   5991  1.1  christos 			   relocations, and is required to make
   5992  1.1  christos 			   function pointers compare as equal between
   5993  1.1  christos 			   the normal executable and the shared library.  */
   5994  1.1  christos 			if (! bfd_link_pic (info)
   5995  1.1  christos 			    && h->def_dynamic
   5996  1.1  christos 			    && !h->def_regular)
   5997  1.1  christos 			  {
   5998  1.1  christos 			    h->root.u.def.section = s;
   5999  1.1  christos 			    h->root.u.def.value = plt_offset;
   6000  1.1  christos 			  }
   6001  1.1  christos 
   6002  1.1  christos 			/* Make room for this entry.  */
   6003  1.1  christos 			s->size += htab->plt_entry_size;
   6004  1.1  christos 			/* After the 8192nd entry, room for two entries
   6005  1.1  christos 			   is allocated.  */
   6006  1.1  christos 			if (htab->plt_type == PLT_OLD
   6007  1.1  christos 			    && (s->size - htab->plt_initial_entry_size)
   6008  1.1  christos 				/ htab->plt_entry_size
   6009  1.1  christos 			       > PLT_NUM_SINGLE_ENTRIES)
   6010  1.1  christos 			  s->size += htab->plt_entry_size;
   6011  1.1  christos 		      }
   6012  1.1  christos 		    ent->plt.offset = plt_offset;
   6013  1.1  christos 		  }
   6014  1.1  christos 
   6015  1.6  christos 		/* We also need to make an entry in the .rela.plt section.  */
   6016  1.1  christos 		if (!doneone)
   6017  1.1  christos 		  {
   6018  1.1  christos 		    if (!htab->elf.dynamic_sections_created
   6019  1.1  christos 			|| h->dynindx == -1)
   6020  1.1  christos 		      htab->reliplt->size += sizeof (Elf32_External_Rela);
   6021  1.1  christos 		    else
   6022  1.1  christos 		      {
   6023  1.1  christos 			htab->relplt->size += sizeof (Elf32_External_Rela);
   6024  1.1  christos 
   6025  1.1  christos 			if (htab->plt_type == PLT_VXWORKS)
   6026  1.1  christos 			  {
   6027  1.1  christos 			    /* Allocate space for the unloaded relocations.  */
   6028  1.1  christos 			    if (!bfd_link_pic (info)
   6029  1.1  christos 				&& htab->elf.dynamic_sections_created)
   6030  1.1  christos 			      {
   6031  1.1  christos 				if (ent->plt.offset
   6032  1.1  christos 				    == (bfd_vma) htab->plt_initial_entry_size)
   6033  1.1  christos 				  {
   6034  1.1  christos 				    htab->srelplt2->size
   6035  1.1  christos 				      += (sizeof (Elf32_External_Rela)
   6036  1.1  christos 					  * VXWORKS_PLTRESOLVE_RELOCS);
   6037  1.1  christos 				  }
   6038  1.1  christos 
   6039  1.1  christos 				htab->srelplt2->size
   6040  1.1  christos 				  += (sizeof (Elf32_External_Rela)
   6041  1.1  christos 				      * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
   6042  1.1  christos 			      }
   6043  1.1  christos 
   6044  1.1  christos 			    /* Every PLT entry has an associated GOT entry in
   6045  1.1  christos 			       .got.plt.  */
   6046  1.1  christos 			    htab->sgotplt->size += 4;
   6047  1.1  christos 			  }
   6048  1.1  christos 		      }
   6049  1.1  christos 		    doneone = TRUE;
   6050  1.1  christos 		  }
   6051  1.1  christos 	      }
   6052  1.1  christos 	    else
   6053  1.1  christos 	      ent->plt.offset = (bfd_vma) -1;
   6054  1.1  christos 	  }
   6055  1.1  christos 	else
   6056  1.1  christos 	  ent->plt.offset = (bfd_vma) -1;
   6057  1.1  christos 
   6058  1.5  christos       if (!doneone)
   6059  1.5  christos 	{
   6060  1.5  christos 	  h->plt.plist = NULL;
   6061  1.5  christos 	  h->needs_plt = 0;
   6062  1.5  christos 	}
   6063  1.5  christos     }
   6064  1.5  christos   else
   6065  1.1  christos     {
   6066  1.1  christos       h->plt.plist = NULL;
   6067  1.1  christos       h->needs_plt = 0;
   6068  1.1  christos     }
   6069  1.1  christos 
   6070  1.1  christos   eh = (struct ppc_elf_link_hash_entry *) h;
   6071  1.1  christos   if (eh->elf.got.refcount > 0
   6072  1.1  christos       || (ELIMINATE_COPY_RELOCS
   6073  1.1  christos 	  && !eh->elf.def_regular
   6074  1.1  christos 	  && eh->elf.protected_def
   6075  1.1  christos 	  && eh->has_addr16_ha
   6076  1.1  christos 	  && eh->has_addr16_lo
   6077  1.1  christos 	  && htab->params->pic_fixup > 0))
   6078  1.1  christos     {
   6079  1.1  christos       bfd_boolean dyn;
   6080  1.1  christos       unsigned int need;
   6081  1.1  christos 
   6082  1.1  christos       /* Make sure this symbol is output as a dynamic symbol.  */
   6083  1.1  christos       if (eh->elf.dynindx == -1
   6084  1.1  christos 	  && !eh->elf.forced_local
   6085  1.1  christos 	  && eh->elf.type != STT_GNU_IFUNC
   6086  1.1  christos 	  && htab->elf.dynamic_sections_created)
   6087  1.1  christos 	{
   6088  1.1  christos 	  if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
   6089  1.1  christos 	    return FALSE;
   6090  1.1  christos 	}
   6091  1.1  christos 
   6092  1.1  christos       need = 0;
   6093  1.1  christos       if ((eh->tls_mask & TLS_TLS) != 0)
   6094  1.1  christos 	{
   6095  1.1  christos 	  if ((eh->tls_mask & TLS_LD) != 0)
   6096  1.1  christos 	    {
   6097  1.1  christos 	      if (!eh->elf.def_dynamic)
   6098  1.1  christos 		/* We'll just use htab->tlsld_got.offset.  This should
   6099  1.1  christos 		   always be the case.  It's a little odd if we have
   6100  1.1  christos 		   a local dynamic reloc against a non-local symbol.  */
   6101  1.1  christos 		htab->tlsld_got.refcount += 1;
   6102  1.1  christos 	      else
   6103  1.1  christos 		need += 8;
   6104  1.1  christos 	    }
   6105  1.1  christos 	  if ((eh->tls_mask & TLS_GD) != 0)
   6106  1.1  christos 	    need += 8;
   6107  1.6  christos 	  if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6108  1.1  christos 	    need += 4;
   6109  1.1  christos 	  if ((eh->tls_mask & TLS_DTPREL) != 0)
   6110  1.1  christos 	    need += 4;
   6111  1.1  christos 	}
   6112  1.1  christos       else
   6113  1.1  christos 	need += 4;
   6114  1.1  christos       if (need == 0)
   6115  1.1  christos 	eh->elf.got.offset = (bfd_vma) -1;
   6116  1.1  christos       else
   6117  1.1  christos 	{
   6118  1.1  christos 	  eh->elf.got.offset = allocate_got (htab, need);
   6119  1.1  christos 	  dyn = htab->elf.dynamic_sections_created;
   6120  1.1  christos 	  if ((bfd_link_pic (info)
   6121  1.1  christos 	       || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
   6122  1.1  christos 	      && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
   6123  1.1  christos 		  || eh->elf.root.type != bfd_link_hash_undefweak))
   6124  1.1  christos 	    {
   6125  1.1  christos 	      asection *rsec = htab->relgot;
   6126  1.1  christos 
   6127  1.1  christos 	      if (eh->elf.type == STT_GNU_IFUNC)
   6128  1.1  christos 		rsec = htab->reliplt;
   6129  1.1  christos 	      /* All the entries we allocated need relocs.
   6130  1.1  christos 		 Except LD only needs one.  */
   6131  1.1  christos 	      if ((eh->tls_mask & TLS_LD) != 0
   6132  1.1  christos 		  && eh->elf.def_dynamic)
   6133  1.1  christos 		need -= 4;
   6134  1.1  christos 	      rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
   6135  1.1  christos 	    }
   6136  1.1  christos 	}
   6137  1.1  christos     }
   6138  1.6  christos   else
   6139  1.1  christos     eh->elf.got.offset = (bfd_vma) -1;
   6140  1.1  christos 
   6141  1.1  christos   if (eh->dyn_relocs == NULL
   6142  1.1  christos       || !htab->elf.dynamic_sections_created)
   6143  1.1  christos     return TRUE;
   6144  1.1  christos 
   6145  1.1  christos   /* In the shared -Bsymbolic case, discard space allocated for
   6146  1.1  christos      dynamic pc-relative relocs against symbols which turn out to be
   6147  1.1  christos      defined in regular objects.  For the normal shared case, discard
   6148  1.1  christos      space for relocs that have become local due to symbol visibility
   6149  1.1  christos      changes.  */
   6150  1.1  christos 
   6151  1.1  christos   if (bfd_link_pic (info))
   6152  1.1  christos     {
   6153  1.1  christos       /* Relocs that use pc_count are those that appear on a call insn,
   6154  1.1  christos 	 or certain REL relocs (see must_be_dyn_reloc) that can be
   6155  1.1  christos 	 generated via assembly.  We want calls to protected symbols to
   6156  1.1  christos 	 resolve directly to the function rather than going via the plt.
   6157  1.1  christos 	 If people want function pointer comparisons to work as expected
   6158  1.1  christos 	 then they should avoid writing weird assembly.  */
   6159  1.1  christos       if (SYMBOL_CALLS_LOCAL (info, h))
   6160  1.1  christos 	{
   6161  1.1  christos 	  struct elf_dyn_relocs **pp;
   6162  1.1  christos 
   6163  1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6164  1.1  christos 	    {
   6165  1.1  christos 	      p->count -= p->pc_count;
   6166  1.1  christos 	      p->pc_count = 0;
   6167  1.1  christos 	      if (p->count == 0)
   6168  1.1  christos 		*pp = p->next;
   6169  1.1  christos 	      else
   6170  1.1  christos 		pp = &p->next;
   6171  1.1  christos 	    }
   6172  1.1  christos 	}
   6173  1.1  christos 
   6174  1.1  christos       if (htab->is_vxworks)
   6175  1.1  christos 	{
   6176  1.1  christos 	  struct elf_dyn_relocs **pp;
   6177  1.1  christos 
   6178  1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6179  1.1  christos 	    {
   6180  1.1  christos 	      if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
   6181  1.1  christos 		*pp = p->next;
   6182  1.1  christos 	      else
   6183  1.1  christos 		pp = &p->next;
   6184  1.1  christos 	    }
   6185  1.1  christos 	}
   6186  1.1  christos 
   6187  1.1  christos       /* Discard relocs on undefined symbols that must be local.  */
   6188  1.1  christos       if (eh->dyn_relocs != NULL
   6189  1.1  christos 	  && h->root.type == bfd_link_hash_undefined
   6190  1.1  christos 	  && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
   6191  1.1  christos 	      || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
   6192  1.1  christos 	eh->dyn_relocs = NULL;
   6193  1.1  christos 
   6194  1.1  christos       /* Also discard relocs on undefined weak syms with non-default
   6195  1.1  christos 	 visibility.  */
   6196  1.1  christos       if (eh->dyn_relocs != NULL
   6197  1.1  christos 	  && h->root.type == bfd_link_hash_undefweak)
   6198  1.1  christos 	{
   6199  1.1  christos 	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   6200  1.1  christos 	    eh->dyn_relocs = NULL;
   6201  1.1  christos 
   6202  1.1  christos 	  /* Make sure undefined weak symbols are output as a dynamic
   6203  1.1  christos 	     symbol in PIEs.  */
   6204  1.1  christos 	  else if (h->dynindx == -1
   6205  1.1  christos 		   && !h->forced_local
   6206  1.1  christos 		   && !h->def_regular)
   6207  1.5  christos 	    {
   6208  1.5  christos 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
   6209  1.5  christos 		return FALSE;
   6210  1.5  christos 	    }
   6211  1.5  christos 	}
   6212  1.1  christos     }
   6213  1.1  christos   else if (ELIMINATE_COPY_RELOCS)
   6214  1.1  christos     {
   6215  1.1  christos       /* For the non-shared case, discard space for relocs against
   6216  1.1  christos 	 symbols which turn out to need copy relocs or are not
   6217  1.1  christos 	 dynamic.  */
   6218  1.1  christos 
   6219  1.1  christos       if (!h->non_got_ref
   6220  1.1  christos 	  && !h->def_regular
   6221  1.1  christos 	  && !(h->protected_def
   6222  1.1  christos 	       && eh->has_addr16_ha
   6223  1.1  christos 	       && eh->has_addr16_lo
   6224  1.1  christos 	       && htab->params->pic_fixup > 0))
   6225  1.1  christos 	{
   6226  1.1  christos 	  /* Make sure this symbol is output as a dynamic symbol.
   6227  1.1  christos 	     Undefined weak syms won't yet be marked as dynamic.  */
   6228  1.1  christos 	  if (h->dynindx == -1
   6229  1.1  christos 	      && !h->forced_local)
   6230  1.1  christos 	    {
   6231  1.1  christos 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
   6232  1.1  christos 		return FALSE;
   6233  1.1  christos 	    }
   6234  1.1  christos 
   6235  1.1  christos 	  /* If that succeeded, we know we'll be keeping all the
   6236  1.1  christos 	     relocs.  */
   6237  1.1  christos 	  if (h->dynindx != -1)
   6238  1.1  christos 	    goto keep;
   6239  1.1  christos 	}
   6240  1.1  christos 
   6241  1.1  christos       eh->dyn_relocs = NULL;
   6242  1.1  christos 
   6243  1.1  christos     keep: ;
   6244  1.1  christos     }
   6245  1.1  christos 
   6246  1.1  christos   /* Finally, allocate space.  */
   6247  1.1  christos   for (p = eh->dyn_relocs; p != NULL; p = p->next)
   6248  1.1  christos     {
   6249  1.1  christos       asection *sreloc = elf_section_data (p->sec)->sreloc;
   6250  1.1  christos       if (eh->elf.type == STT_GNU_IFUNC)
   6251  1.1  christos 	sreloc = htab->reliplt;
   6252  1.1  christos       sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6253  1.1  christos     }
   6254  1.1  christos 
   6255  1.1  christos   return TRUE;
   6256  1.1  christos }
   6257  1.1  christos 
   6258  1.1  christos /* Set DF_TEXTREL if we find any dynamic relocs that apply to
   6259  1.1  christos    read-only sections.  */
   6260  1.1  christos 
   6261  1.1  christos static bfd_boolean
   6262  1.1  christos maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
   6263  1.1  christos {
   6264  1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   6265  1.1  christos     return TRUE;
   6266  1.1  christos 
   6267  1.1  christos   if (readonly_dynrelocs (h))
   6268  1.1  christos     {
   6269  1.1  christos       ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
   6270  1.1  christos 
   6271  1.1  christos       /* Not an error, just cut short the traversal.  */
   6272  1.1  christos       return FALSE;
   6273  1.1  christos     }
   6274  1.1  christos   return TRUE;
   6275  1.1  christos }
   6276  1.1  christos 
   6277  1.1  christos static const unsigned char glink_eh_frame_cie[] =
   6278  1.1  christos {
   6279  1.1  christos   0, 0, 0, 16,				/* length.  */
   6280  1.1  christos   0, 0, 0, 0,				/* id.  */
   6281  1.3  christos   1,					/* CIE version.  */
   6282  1.1  christos   'z', 'R', 0,				/* Augmentation string.  */
   6283  1.1  christos   4,					/* Code alignment.  */
   6284  1.1  christos   0x7c,					/* Data alignment.  */
   6285  1.1  christos   65,					/* RA reg.  */
   6286  1.1  christos   1,					/* Augmentation size.  */
   6287  1.1  christos   DW_EH_PE_pcrel | DW_EH_PE_sdata4,	/* FDE encoding.  */
   6288  1.1  christos   DW_CFA_def_cfa, 1, 0			/* def_cfa: r1 offset 0.  */
   6289  1.1  christos };
   6290  1.1  christos 
   6291  1.1  christos /* Set the sizes of the dynamic sections.  */
   6292  1.1  christos 
   6293  1.1  christos static bfd_boolean
   6294  1.1  christos ppc_elf_size_dynamic_sections (bfd *output_bfd,
   6295  1.1  christos 			       struct bfd_link_info *info)
   6296  1.1  christos {
   6297  1.1  christos   struct ppc_elf_link_hash_table *htab;
   6298  1.1  christos   asection *s;
   6299  1.6  christos   bfd_boolean relocs;
   6300  1.1  christos   bfd *ibfd;
   6301  1.1  christos 
   6302  1.1  christos #ifdef DEBUG
   6303  1.1  christos   fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
   6304  1.1  christos #endif
   6305  1.1  christos 
   6306  1.1  christos   htab = ppc_elf_hash_table (info);
   6307  1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   6308  1.1  christos 
   6309  1.1  christos   if (elf_hash_table (info)->dynamic_sections_created)
   6310  1.1  christos     {
   6311  1.1  christos       /* Set the contents of the .interp section to the interpreter.  */
   6312  1.1  christos       if (bfd_link_executable (info) && !info->nointerp)
   6313  1.1  christos 	{
   6314  1.1  christos 	  s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
   6315  1.3  christos 	  BFD_ASSERT (s != NULL);
   6316  1.1  christos 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
   6317  1.1  christos 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
   6318  1.1  christos 	}
   6319  1.1  christos     }
   6320  1.1  christos 
   6321  1.1  christos   if (htab->plt_type == PLT_OLD)
   6322  1.1  christos     htab->got_header_size = 16;
   6323  1.1  christos   else if (htab->plt_type == PLT_NEW)
   6324  1.1  christos     htab->got_header_size = 12;
   6325  1.1  christos 
   6326  1.1  christos   /* Set up .got offsets for local syms, and space for local dynamic
   6327  1.1  christos      relocs.  */
   6328  1.1  christos   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   6329  1.1  christos     {
   6330  1.1  christos       bfd_signed_vma *local_got;
   6331  1.1  christos       bfd_signed_vma *end_local_got;
   6332  1.1  christos       struct plt_entry **local_plt;
   6333  1.1  christos       struct plt_entry **end_local_plt;
   6334  1.1  christos       char *lgot_masks;
   6335  1.1  christos       bfd_size_type locsymcount;
   6336  1.1  christos       Elf_Internal_Shdr *symtab_hdr;
   6337  1.1  christos 
   6338  1.1  christos       if (!is_ppc_elf (ibfd))
   6339  1.1  christos 	continue;
   6340  1.1  christos 
   6341  1.1  christos       for (s = ibfd->sections; s != NULL; s = s->next)
   6342  1.1  christos 	{
   6343  1.1  christos 	  struct ppc_dyn_relocs *p;
   6344  1.1  christos 
   6345  1.1  christos 	  for (p = ((struct ppc_dyn_relocs *)
   6346  1.1  christos 		    elf_section_data (s)->local_dynrel);
   6347  1.1  christos 	       p != NULL;
   6348  1.1  christos 	       p = p->next)
   6349  1.1  christos 	    {
   6350  1.1  christos 	      if (!bfd_is_abs_section (p->sec)
   6351  1.1  christos 		  && bfd_is_abs_section (p->sec->output_section))
   6352  1.1  christos 		{
   6353  1.1  christos 		  /* Input section has been discarded, either because
   6354  1.1  christos 		     it is a copy of a linkonce section or due to
   6355  1.1  christos 		     linker script /DISCARD/, so we'll be discarding
   6356  1.1  christos 		     the relocs too.  */
   6357  1.1  christos 		}
   6358  1.1  christos 	      else if (htab->is_vxworks
   6359  1.1  christos 		       && strcmp (p->sec->output_section->name,
   6360  1.1  christos 				  ".tls_vars") == 0)
   6361  1.1  christos 		{
   6362  1.1  christos 		  /* Relocations in vxworks .tls_vars sections are
   6363  1.1  christos 		     handled specially by the loader.  */
   6364  1.1  christos 		}
   6365  1.1  christos 	      else if (p->count != 0)
   6366  1.1  christos 		{
   6367  1.1  christos 		  asection *sreloc = elf_section_data (p->sec)->sreloc;
   6368  1.1  christos 		  if (p->ifunc)
   6369  1.1  christos 		    sreloc = htab->reliplt;
   6370  1.1  christos 		  sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6371  1.1  christos 		  if ((p->sec->output_section->flags
   6372  1.1  christos 		       & (SEC_READONLY | SEC_ALLOC))
   6373  1.1  christos 		      == (SEC_READONLY | SEC_ALLOC))
   6374  1.1  christos 		    info->flags |= DF_TEXTREL;
   6375  1.1  christos 		}
   6376  1.1  christos 	    }
   6377  1.1  christos 	}
   6378  1.1  christos 
   6379  1.1  christos       local_got = elf_local_got_refcounts (ibfd);
   6380  1.1  christos       if (!local_got)
   6381  1.1  christos 	continue;
   6382  1.1  christos 
   6383  1.1  christos       symtab_hdr = &elf_symtab_hdr (ibfd);
   6384  1.1  christos       locsymcount = symtab_hdr->sh_info;
   6385  1.1  christos       end_local_got = local_got + locsymcount;
   6386  1.1  christos       local_plt = (struct plt_entry **) end_local_got;
   6387  1.1  christos       end_local_plt = local_plt + locsymcount;
   6388  1.1  christos       lgot_masks = (char *) end_local_plt;
   6389  1.1  christos 
   6390  1.1  christos       for (; local_got < end_local_got; ++local_got, ++lgot_masks)
   6391  1.1  christos 	if (*local_got > 0)
   6392  1.1  christos 	  {
   6393  1.1  christos 	    unsigned int need = 0;
   6394  1.1  christos 	    if ((*lgot_masks & TLS_TLS) != 0)
   6395  1.1  christos 	      {
   6396  1.1  christos 		if ((*lgot_masks & TLS_GD) != 0)
   6397  1.1  christos 		  need += 8;
   6398  1.1  christos 		if ((*lgot_masks & TLS_LD) != 0)
   6399  1.6  christos 		  htab->tlsld_got.refcount += 1;
   6400  1.1  christos 		if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6401  1.1  christos 		  need += 4;
   6402  1.1  christos 		if ((*lgot_masks & TLS_DTPREL) != 0)
   6403  1.1  christos 		  need += 4;
   6404  1.1  christos 	      }
   6405  1.1  christos 	    else
   6406  1.1  christos 	      need += 4;
   6407  1.1  christos 	    if (need == 0)
   6408  1.1  christos 	      *local_got = (bfd_vma) -1;
   6409  1.1  christos 	    else
   6410  1.1  christos 	      {
   6411  1.1  christos 		*local_got = allocate_got (htab, need);
   6412  1.1  christos 		if (bfd_link_pic (info))
   6413  1.1  christos 		  {
   6414  1.1  christos 		    asection *srel = htab->relgot;
   6415  1.1  christos 		    if ((*lgot_masks & PLT_IFUNC) != 0)
   6416  1.1  christos 		      srel = htab->reliplt;
   6417  1.1  christos 		    srel->size += need * (sizeof (Elf32_External_Rela) / 4);
   6418  1.1  christos 		  }
   6419  1.1  christos 	      }
   6420  1.1  christos 	  }
   6421  1.1  christos 	else
   6422  1.1  christos 	  *local_got = (bfd_vma) -1;
   6423  1.1  christos 
   6424  1.1  christos       if (htab->is_vxworks)
   6425  1.1  christos 	continue;
   6426  1.1  christos 
   6427  1.1  christos       /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt.  */
   6428  1.1  christos       for (; local_plt < end_local_plt; ++local_plt)
   6429  1.1  christos 	{
   6430  1.1  christos 	  struct plt_entry *ent;
   6431  1.1  christos 	  bfd_boolean doneone = FALSE;
   6432  1.1  christos 	  bfd_vma plt_offset = 0, glink_offset = 0;
   6433  1.1  christos 
   6434  1.6  christos 	  for (ent = *local_plt; ent != NULL; ent = ent->next)
   6435  1.1  christos 	    if (ent->plt.refcount > 0)
   6436  1.1  christos 	      {
   6437  1.1  christos 		s = htab->iplt;
   6438  1.1  christos 
   6439  1.1  christos 		if (!doneone)
   6440  1.1  christos 		  {
   6441  1.1  christos 		    plt_offset = s->size;
   6442  1.1  christos 		    s->size += 4;
   6443  1.1  christos 		  }
   6444  1.1  christos 		ent->plt.offset = plt_offset;
   6445  1.1  christos 
   6446  1.1  christos 		s = htab->glink;
   6447  1.1  christos 		if (!doneone || bfd_link_pic (info))
   6448  1.1  christos 		  {
   6449  1.1  christos 		    glink_offset = s->size;
   6450  1.1  christos 		    s->size += GLINK_ENTRY_SIZE;
   6451  1.1  christos 		  }
   6452  1.1  christos 		ent->glink_offset = glink_offset;
   6453  1.1  christos 
   6454  1.1  christos 		if (!doneone)
   6455  1.1  christos 		  {
   6456  1.1  christos 		    htab->reliplt->size += sizeof (Elf32_External_Rela);
   6457  1.1  christos 		    doneone = TRUE;
   6458  1.6  christos 		  }
   6459  1.1  christos 	      }
   6460  1.1  christos 	    else
   6461  1.1  christos 	      ent->plt.offset = (bfd_vma) -1;
   6462  1.1  christos 	}
   6463  1.1  christos     }
   6464  1.1  christos 
   6465  1.1  christos   /* Allocate space for global sym dynamic relocs.  */
   6466  1.1  christos   elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
   6467  1.1  christos 
   6468  1.1  christos   if (htab->tlsld_got.refcount > 0)
   6469  1.1  christos     {
   6470  1.1  christos       htab->tlsld_got.offset = allocate_got (htab, 8);
   6471  1.1  christos       if (bfd_link_pic (info))
   6472  1.1  christos 	htab->relgot->size += sizeof (Elf32_External_Rela);
   6473  1.1  christos     }
   6474  1.1  christos   else
   6475  1.1  christos     htab->tlsld_got.offset = (bfd_vma) -1;
   6476  1.1  christos 
   6477  1.1  christos   if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
   6478  1.1  christos     {
   6479  1.1  christos       unsigned int g_o_t = 32768;
   6480  1.1  christos 
   6481  1.1  christos       /* If we haven't allocated the header, do so now.  When we get here,
   6482  1.6  christos 	 for old plt/got the got size will be 0 to 32764 (not allocated),
   6483  1.1  christos 	 or 32780 to 65536 (header allocated).  For new plt/got, the
   6484  1.1  christos 	 corresponding ranges are 0 to 32768 and 32780 to 65536.  */
   6485  1.3  christos       if (htab->got->size <= 32768)
   6486  1.3  christos 	{
   6487  1.3  christos 	  g_o_t = htab->got->size;
   6488  1.3  christos 	  if (htab->plt_type == PLT_OLD)
   6489  1.3  christos 	    g_o_t += 4;
   6490  1.3  christos 	  htab->got->size += htab->got_header_size;
   6491  1.3  christos 	}
   6492  1.3  christos 
   6493  1.3  christos       htab->elf.hgot->root.u.def.value = g_o_t;
   6494  1.3  christos     }
   6495  1.3  christos   if (bfd_link_pic (info))
   6496  1.3  christos     {
   6497  1.3  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6498  1.1  christos 
   6499  1.1  christos       sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
   6500  1.1  christos       sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
   6501  1.1  christos     }
   6502  1.1  christos   if (info->emitrelocations)
   6503  1.1  christos     {
   6504  1.1  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6505  1.1  christos 
   6506  1.1  christos       if (sda != NULL && sda->ref_regular)
   6507  1.1  christos 	sda->root.u.def.section->flags |= SEC_KEEP;
   6508  1.3  christos       sda = htab->sdata[1].sym;
   6509  1.3  christos       if (sda != NULL && sda->ref_regular)
   6510  1.1  christos 	sda->root.u.def.section->flags |= SEC_KEEP;
   6511  1.1  christos     }
   6512  1.3  christos 
   6513  1.1  christos   if (htab->glink != NULL
   6514  1.1  christos       && htab->glink->size != 0
   6515  1.1  christos       && htab->elf.dynamic_sections_created)
   6516  1.1  christos     {
   6517  1.1  christos       htab->glink_pltresolve = htab->glink->size;
   6518  1.1  christos       /* Space for the branch table.  */
   6519  1.1  christos       htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
   6520  1.1  christos       /* Pad out to align the start of PLTresolve.  */
   6521  1.1  christos       htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
   6522  1.1  christos 						 ? 63 : 15);
   6523  1.1  christos       htab->glink->size += GLINK_PLTRESOLVE;
   6524  1.1  christos 
   6525  1.1  christos       if (htab->params->emit_stub_syms)
   6526  1.1  christos 	{
   6527  1.1  christos 	  struct elf_link_hash_entry *sh;
   6528  1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink",
   6529  1.5  christos 				     TRUE, FALSE, FALSE);
   6530  1.1  christos 	  if (sh == NULL)
   6531  1.1  christos 	    return FALSE;
   6532  1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6533  1.1  christos 	    {
   6534  1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6535  1.1  christos 	      sh->root.u.def.section = htab->glink;
   6536  1.1  christos 	      sh->root.u.def.value = htab->glink_pltresolve;
   6537  1.1  christos 	      sh->ref_regular = 1;
   6538  1.1  christos 	      sh->def_regular = 1;
   6539  1.1  christos 	      sh->ref_regular_nonweak = 1;
   6540  1.1  christos 	      sh->forced_local = 1;
   6541  1.1  christos 	      sh->non_elf = 0;
   6542  1.1  christos 	      sh->root.linker_def = 1;
   6543  1.1  christos 	    }
   6544  1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
   6545  1.5  christos 				     TRUE, FALSE, FALSE);
   6546  1.1  christos 	  if (sh == NULL)
   6547  1.1  christos 	    return FALSE;
   6548  1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6549  1.1  christos 	    {
   6550  1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6551  1.1  christos 	      sh->root.u.def.section = htab->glink;
   6552  1.1  christos 	      sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
   6553  1.1  christos 	      sh->ref_regular = 1;
   6554  1.1  christos 	      sh->def_regular = 1;
   6555  1.1  christos 	      sh->ref_regular_nonweak = 1;
   6556  1.1  christos 	      sh->forced_local = 1;
   6557  1.1  christos 	      sh->non_elf = 0;
   6558  1.6  christos 	      sh->root.linker_def = 1;
   6559  1.1  christos 	    }
   6560  1.1  christos 	}
   6561  1.1  christos     }
   6562  1.1  christos 
   6563  1.1  christos   if (htab->glink != NULL
   6564  1.1  christos       && htab->glink->size != 0
   6565  1.1  christos       && htab->glink_eh_frame != NULL
   6566  1.1  christos       && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
   6567  1.1  christos       && _bfd_elf_eh_frame_present (info))
   6568  1.1  christos     {
   6569  1.1  christos       s = htab->glink_eh_frame;
   6570  1.1  christos       s->size = sizeof (glink_eh_frame_cie) + 20;
   6571  1.1  christos       if (bfd_link_pic (info))
   6572  1.1  christos 	{
   6573  1.1  christos 	  s->size += 4;
   6574  1.1  christos 	  if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
   6575  1.1  christos 	    s->size += 4;
   6576  1.1  christos 	}
   6577  1.1  christos     }
   6578  1.1  christos 
   6579  1.1  christos   /* We've now determined the sizes of the various dynamic sections.
   6580  1.1  christos      Allocate memory for them.  */
   6581  1.1  christos   relocs = FALSE;
   6582  1.1  christos   for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
   6583  1.1  christos     {
   6584  1.1  christos       bfd_boolean strip_section = TRUE;
   6585  1.1  christos 
   6586  1.1  christos       if ((s->flags & SEC_LINKER_CREATED) == 0)
   6587  1.1  christos 	continue;
   6588  1.1  christos 
   6589  1.1  christos       if (s == htab->plt
   6590  1.1  christos 	  || s == htab->got)
   6591  1.1  christos 	{
   6592  1.1  christos 	  /* We'd like to strip these sections if they aren't needed, but if
   6593  1.3  christos 	     we've exported dynamic symbols from them we must leave them.
   6594  1.3  christos 	     It's too late to tell BFD to get rid of the symbols.  */
   6595  1.3  christos 	  if (htab->elf.hplt != NULL)
   6596  1.3  christos 	    strip_section = FALSE;
   6597  1.3  christos 	  /* Strip this section if we don't need it; see the
   6598  1.1  christos 	     comment below.  */
   6599  1.1  christos 	}
   6600  1.3  christos       else if (s == htab->iplt
   6601  1.1  christos 	       || s == htab->glink
   6602  1.1  christos 	       || s == htab->glink_eh_frame
   6603  1.1  christos 	       || s == htab->sgotplt
   6604  1.1  christos 	       || s == htab->sbss
   6605  1.1  christos 	       || s == htab->dynbss
   6606  1.1  christos 	       || s == htab->dynsbss)
   6607  1.1  christos 	{
   6608  1.1  christos 	  /* Strip these too.  */
   6609  1.1  christos 	}
   6610  1.1  christos       else if (s == htab->sdata[0].section
   6611  1.1  christos 	       || s == htab->sdata[1].section)
   6612  1.1  christos 	{
   6613  1.1  christos 	  strip_section = (s->flags & SEC_KEEP) == 0;
   6614  1.1  christos 	}
   6615  1.1  christos       else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
   6616  1.1  christos 			     ".rela"))
   6617  1.1  christos 	{
   6618  1.1  christos 	  if (s->size != 0)
   6619  1.1  christos 	    {
   6620  1.1  christos 	      /* Remember whether there are any relocation sections.  */
   6621  1.1  christos 	      relocs = TRUE;
   6622  1.1  christos 
   6623  1.1  christos 	      /* We use the reloc_count field as a counter if we need
   6624  1.1  christos 		 to copy relocs into the output file.  */
   6625  1.1  christos 	      s->reloc_count = 0;
   6626  1.1  christos 	    }
   6627  1.1  christos 	}
   6628  1.1  christos       else
   6629  1.1  christos 	{
   6630  1.1  christos 	  /* It's not one of our sections, so don't allocate space.  */
   6631  1.1  christos 	  continue;
   6632  1.1  christos 	}
   6633  1.1  christos 
   6634  1.1  christos       if (s->size == 0 && strip_section)
   6635  1.1  christos 	{
   6636  1.1  christos 	  /* If we don't need this section, strip it from the
   6637  1.1  christos 	     output file.  This is mostly to handle .rela.bss and
   6638  1.1  christos 	     .rela.plt.  We must create both sections in
   6639  1.1  christos 	     create_dynamic_sections, because they must be created
   6640  1.1  christos 	     before the linker maps input sections to output
   6641  1.1  christos 	     sections.  The linker does that before
   6642  1.1  christos 	     adjust_dynamic_symbol is called, and it is that
   6643  1.1  christos 	     function which decides whether anything needs to go
   6644  1.1  christos 	     into these sections.  */
   6645  1.1  christos 	  s->flags |= SEC_EXCLUDE;
   6646  1.1  christos 	  continue;
   6647  1.1  christos 	}
   6648  1.1  christos 
   6649  1.1  christos       if ((s->flags & SEC_HAS_CONTENTS) == 0)
   6650  1.1  christos 	continue;
   6651  1.1  christos 
   6652  1.1  christos       /* Allocate memory for the section contents.  */
   6653  1.1  christos       s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
   6654  1.1  christos       if (s->contents == NULL)
   6655  1.6  christos 	return FALSE;
   6656  1.1  christos     }
   6657  1.1  christos 
   6658  1.1  christos   if (htab->elf.dynamic_sections_created)
   6659  1.1  christos     {
   6660  1.1  christos       /* Add some entries to the .dynamic section.  We fill in the
   6661  1.1  christos 	 values later, in ppc_elf_finish_dynamic_sections, but we
   6662  1.1  christos 	 must add the entries now so that we get the correct size for
   6663  1.1  christos 	 the .dynamic section.  The DT_DEBUG entry is filled in by the
   6664  1.1  christos 	 dynamic linker and used by the debugger.  */
   6665  1.1  christos #define add_dynamic_entry(TAG, VAL) \
   6666  1.1  christos   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
   6667  1.1  christos 
   6668  1.1  christos       if (bfd_link_executable (info))
   6669  1.1  christos 	{
   6670  1.3  christos 	  if (!add_dynamic_entry (DT_DEBUG, 0))
   6671  1.3  christos 	    return FALSE;
   6672  1.3  christos 	}
   6673  1.1  christos 
   6674  1.1  christos       if (htab->plt != NULL && htab->plt->size != 0)
   6675  1.1  christos 	{
   6676  1.3  christos 	  if (!add_dynamic_entry (DT_PLTGOT, 0)
   6677  1.1  christos 	      || !add_dynamic_entry (DT_PLTRELSZ, 0)
   6678  1.1  christos 	      || !add_dynamic_entry (DT_PLTREL, DT_RELA)
   6679  1.1  christos 	      || !add_dynamic_entry (DT_JMPREL, 0))
   6680  1.1  christos 	    return FALSE;
   6681  1.1  christos 	}
   6682  1.1  christos 
   6683  1.1  christos       if (htab->plt_type == PLT_NEW
   6684  1.1  christos 	  && htab->glink != NULL
   6685  1.1  christos 	  && htab->glink->size != 0)
   6686  1.1  christos 	{
   6687  1.1  christos 	  if (!add_dynamic_entry (DT_PPC_GOT, 0))
   6688  1.1  christos 	    return FALSE;
   6689  1.1  christos 	  if (!htab->params->no_tls_get_addr_opt
   6690  1.1  christos 	      && htab->tls_get_addr != NULL
   6691  1.1  christos 	      && htab->tls_get_addr->plt.plist != NULL
   6692  1.1  christos 	      && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
   6693  1.1  christos 	    return FALSE;
   6694  1.1  christos 	}
   6695  1.1  christos 
   6696  1.1  christos       if (relocs)
   6697  1.1  christos 	{
   6698  1.1  christos 	  if (!add_dynamic_entry (DT_RELA, 0)
   6699  1.1  christos 	      || !add_dynamic_entry (DT_RELASZ, 0)
   6700  1.1  christos 	      || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
   6701  1.1  christos 	    return FALSE;
   6702  1.1  christos 	}
   6703  1.1  christos 
   6704  1.1  christos       /* If any dynamic relocs apply to a read-only section, then we
   6705  1.1  christos 	 need a DT_TEXTREL entry.  */
   6706  1.1  christos       if ((info->flags & DF_TEXTREL) == 0)
   6707  1.1  christos 	elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
   6708  1.1  christos 				info);
   6709  1.1  christos 
   6710  1.1  christos       if ((info->flags & DF_TEXTREL) != 0)
   6711  1.1  christos 	{
   6712  1.1  christos 	  if (!add_dynamic_entry (DT_TEXTREL, 0))
   6713  1.1  christos 	    return FALSE;
   6714  1.1  christos 	}
   6715  1.1  christos       if (htab->is_vxworks
   6716  1.1  christos 	  && !elf_vxworks_add_dynamic_entries (output_bfd, info))
   6717  1.1  christos 	return FALSE;
   6718  1.1  christos    }
   6719  1.1  christos #undef add_dynamic_entry
   6720  1.1  christos 
   6721  1.1  christos   if (htab->glink_eh_frame != NULL
   6722  1.1  christos       && htab->glink_eh_frame->contents != NULL)
   6723  1.1  christos     {
   6724  1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   6725  1.1  christos       bfd_vma val;
   6726  1.1  christos 
   6727  1.1  christos       memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
   6728  1.1  christos       /* CIE length (rewrite in case little-endian).  */
   6729  1.1  christos       bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
   6730  1.1  christos       p += sizeof (glink_eh_frame_cie);
   6731  1.1  christos       /* FDE length.  */
   6732  1.1  christos       val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
   6733  1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   6734  1.6  christos       p += 4;
   6735  1.1  christos       /* CIE pointer.  */
   6736  1.1  christos       val = p - htab->glink_eh_frame->contents;
   6737  1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   6738  1.1  christos       p += 4;
   6739  1.1  christos       /* Offset to .glink.  Set later.  */
   6740  1.1  christos       p += 4;
   6741  1.1  christos       /* .glink size.  */
   6742  1.1  christos       bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
   6743  1.1  christos       p += 4;
   6744  1.1  christos       /* Augmentation.  */
   6745  1.1  christos       p += 1;
   6746  1.1  christos 
   6747  1.1  christos       if (bfd_link_pic (info)
   6748  1.1  christos 	  && htab->elf.dynamic_sections_created)
   6749  1.1  christos 	{
   6750  1.1  christos 	  bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
   6751  1.1  christos 	  if (adv < 64)
   6752  1.1  christos 	    *p++ = DW_CFA_advance_loc + adv;
   6753  1.1  christos 	  else if (adv < 256)
   6754  1.1  christos 	    {
   6755  1.1  christos 	      *p++ = DW_CFA_advance_loc1;
   6756  1.1  christos 	      *p++ = adv;
   6757  1.1  christos 	    }
   6758  1.1  christos 	  else if (adv < 65536)
   6759  1.1  christos 	    {
   6760  1.1  christos 	      *p++ = DW_CFA_advance_loc2;
   6761  1.1  christos 	      bfd_put_16 (htab->elf.dynobj, adv, p);
   6762  1.1  christos 	      p += 2;
   6763  1.1  christos 	    }
   6764  1.1  christos 	  else
   6765  1.1  christos 	    {
   6766  1.1  christos 	      *p++ = DW_CFA_advance_loc4;
   6767  1.1  christos 	      bfd_put_32 (htab->elf.dynobj, adv, p);
   6768  1.1  christos 	      p += 4;
   6769  1.1  christos 	    }
   6770  1.1  christos 	  *p++ = DW_CFA_register;
   6771  1.3  christos 	  *p++ = 65;
   6772  1.3  christos 	  p++;
   6773  1.3  christos 	  *p++ = DW_CFA_advance_loc + 4;
   6774  1.3  christos 	  *p++ = DW_CFA_restore_extended;
   6775  1.3  christos 	  *p++ = 65;
   6776  1.3  christos 	}
   6777  1.3  christos       BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
   6778  1.3  christos 		  == htab->glink_eh_frame->size);
   6779  1.3  christos     }
   6780  1.3  christos 
   6781  1.3  christos   return TRUE;
   6782  1.3  christos }
   6783  1.3  christos 
   6784  1.3  christos /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
   6785  1.3  christos    if it looks like nothing is using them.  */
   6786  1.3  christos 
   6787  1.3  christos static void
   6788  1.3  christos maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
   6789  1.3  christos {
   6790  1.3  christos   struct elf_link_hash_entry *sda = lsect->sym;
   6791  1.3  christos 
   6792  1.3  christos   if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
   6793  1.3  christos     {
   6794  1.3  christos       asection *s;
   6795  1.3  christos 
   6796  1.3  christos       s = bfd_get_section_by_name (output_bfd, lsect->name);
   6797  1.3  christos       if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
   6798  1.3  christos 	{
   6799  1.3  christos 	  s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
   6800  1.3  christos 	  if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
   6801  1.3  christos 	    {
   6802  1.3  christos 	      sda->def_regular = 0;
   6803  1.3  christos 	      /* This is somewhat magic.  See elf_link_output_extsym.  */
   6804  1.3  christos 	      sda->ref_dynamic = 1;
   6805  1.3  christos 	      sda->forced_local = 0;
   6806  1.3  christos 	    }
   6807  1.3  christos 	}
   6808  1.3  christos     }
   6809  1.3  christos }
   6810  1.3  christos 
   6811  1.1  christos void
   6812  1.1  christos ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
   6813  1.1  christos {
   6814  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   6815  1.1  christos 
   6816  1.1  christos   if (htab != NULL)
   6817  1.1  christos     {
   6818  1.1  christos       maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
   6819  1.1  christos       maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
   6820  1.1  christos     }
   6821  1.1  christos }
   6822  1.1  christos 
   6823  1.1  christos 
   6824  1.1  christos /* Return TRUE if symbol should be hashed in the `.gnu.hash' section.  */
   6825  1.1  christos 
   6826  1.1  christos static bfd_boolean
   6827  1.1  christos ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
   6828  1.1  christos {
   6829  1.1  christos   if (h->plt.plist != NULL
   6830  1.1  christos       && !h->def_regular
   6831  1.1  christos       && (!h->pointer_equality_needed
   6832  1.1  christos 	  || !h->ref_regular_nonweak))
   6833  1.1  christos     return FALSE;
   6834  1.1  christos 
   6835  1.3  christos   return _bfd_elf_hash_symbol (h);
   6836  1.1  christos }
   6837  1.1  christos 
   6838  1.1  christos #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
   6840  1.1  christos 
   6841  1.1  christos /* Relaxation trampolines.  r12 is available for clobbering (r11, is
   6842  1.1  christos    used for some functions that are allowed to break the ABI).  */
   6843  1.1  christos static const int shared_stub_entry[] =
   6844  1.1  christos   {
   6845  1.1  christos     0x7c0802a6, /* mflr 0 */
   6846  1.1  christos     0x429f0005, /* bcl 20, 31, .Lxxx */
   6847  1.1  christos     0x7d8802a6, /* mflr 12 */
   6848  1.1  christos     0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
   6849  1.3  christos     0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
   6850  1.3  christos     0x7c0803a6, /* mtlr 0 */
   6851  1.3  christos     0x7d8903a6, /* mtctr 12 */
   6852  1.5  christos     0x4e800420, /* bctr */
   6853  1.3  christos   };
   6854  1.3  christos 
   6855  1.3  christos static const int stub_entry[] =
   6856  1.3  christos   {
   6857  1.3  christos     0x3d800000, /* lis 12,xxx@ha */
   6858  1.3  christos     0x398c0000, /* addi 12,12,xxx@l */
   6859  1.3  christos     0x7d8903a6, /* mtctr 12 */
   6860  1.1  christos     0x4e800420, /* bctr */
   6861  1.1  christos   };
   6862  1.1  christos 
   6863  1.1  christos struct ppc_elf_relax_info
   6864  1.1  christos {
   6865  1.1  christos   unsigned int workaround_size;
   6866  1.5  christos   unsigned int picfixup_size;
   6867  1.1  christos };
   6868  1.5  christos 
   6869  1.1  christos /* This function implements long branch trampolines, and the ppc476
   6870  1.1  christos    icache bug workaround.  Any section needing trampolines or patch
   6871  1.1  christos    space for the workaround has its size extended so that we can
   6872  1.1  christos    add trampolines at the end of the section.  */
   6873  1.1  christos 
   6874  1.1  christos static bfd_boolean
   6875  1.1  christos ppc_elf_relax_section (bfd *abfd,
   6876  1.1  christos 		       asection *isec,
   6877  1.1  christos 		       struct bfd_link_info *link_info,
   6878  1.1  christos 		       bfd_boolean *again)
   6879  1.1  christos {
   6880  1.3  christos   struct one_branch_fixup
   6881  1.5  christos   {
   6882  1.3  christos     struct one_branch_fixup *next;
   6883  1.1  christos     asection *tsec;
   6884  1.3  christos     /* Final link, can use the symbol offset.  For a
   6885  1.1  christos        relocatable link we use the symbol's index.  */
   6886  1.5  christos     bfd_vma toff;
   6887  1.1  christos     bfd_vma trampoff;
   6888  1.1  christos   };
   6889  1.1  christos 
   6890  1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   6891  1.1  christos   bfd_byte *contents = NULL;
   6892  1.3  christos   Elf_Internal_Sym *isymbuf = NULL;
   6893  1.1  christos   Elf_Internal_Rela *internal_relocs = NULL;
   6894  1.1  christos   Elf_Internal_Rela *irel, *irelend = NULL;
   6895  1.3  christos   struct one_branch_fixup *branch_fixups = NULL;
   6896  1.3  christos   struct ppc_elf_relax_info *relax_info = NULL;
   6897  1.1  christos   unsigned changes = 0;
   6898  1.1  christos   bfd_boolean workaround_change;
   6899  1.1  christos   struct ppc_elf_link_hash_table *htab;
   6900  1.1  christos   bfd_size_type trampbase, trampoff, newsize, picfixup_size;
   6901  1.1  christos   asection *got2;
   6902  1.6  christos   bfd_boolean maybe_pasted;
   6903  1.3  christos 
   6904  1.3  christos   *again = FALSE;
   6905  1.3  christos 
   6906  1.3  christos   /* No need to do anything with non-alloc or non-code sections.  */
   6907  1.3  christos   if ((isec->flags & SEC_ALLOC) == 0
   6908  1.3  christos       || (isec->flags & SEC_CODE) == 0
   6909  1.3  christos       || (isec->flags & SEC_LINKER_CREATED) != 0
   6910  1.3  christos       || isec->size < 4)
   6911  1.3  christos     return TRUE;
   6912  1.3  christos 
   6913  1.3  christos   /* We cannot represent the required PIC relocs in the output, so don't
   6914  1.3  christos      do anything.  The linker doesn't support mixing -shared and -r
   6915  1.3  christos      anyway.  */
   6916  1.3  christos   if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
   6917  1.3  christos     return TRUE;
   6918  1.5  christos 
   6919  1.5  christos   htab = ppc_elf_hash_table (link_info);
   6920  1.3  christos   if (htab == NULL)
   6921  1.3  christos     return TRUE;
   6922  1.3  christos 
   6923  1.3  christos   isec->size = (isec->size + 3) & -4;
   6924  1.3  christos   if (isec->rawsize == 0)
   6925  1.3  christos     isec->rawsize = isec->size;
   6926  1.3  christos   trampbase = isec->size;
   6927  1.3  christos 
   6928  1.3  christos   BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
   6929  1.3  christos 	      || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
   6930  1.3  christos   isec->sec_info_type = SEC_INFO_TYPE_TARGET;
   6931  1.1  christos 
   6932  1.1  christos   if (htab->params->ppc476_workaround
   6933  1.1  christos       || htab->params->pic_fixup > 0)
   6934  1.1  christos     {
   6935  1.3  christos       if (elf_section_data (isec)->sec_info == NULL)
   6936  1.3  christos 	{
   6937  1.1  christos 	  elf_section_data (isec)->sec_info
   6938  1.1  christos 	    = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
   6939  1.1  christos 	  if (elf_section_data (isec)->sec_info == NULL)
   6940  1.5  christos 	    return FALSE;
   6941  1.5  christos 	}
   6942  1.5  christos       relax_info = elf_section_data (isec)->sec_info;
   6943  1.1  christos       trampbase -= relax_info->workaround_size;
   6944  1.3  christos     }
   6945  1.3  christos 
   6946  1.1  christos   maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
   6947  1.3  christos 		  || strcmp (isec->output_section->name, ".fini") == 0);
   6948  1.3  christos   /* Space for a branch around any trampolines.  */
   6949  1.3  christos   trampoff = trampbase;
   6950  1.3  christos   if (maybe_pasted && trampbase == isec->rawsize)
   6951  1.3  christos     trampoff += 4;
   6952  1.1  christos 
   6953  1.3  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   6954  1.1  christos   picfixup_size = 0;
   6955  1.3  christos   if (htab->params->branch_trampolines
   6956  1.3  christos       || htab->params->pic_fixup > 0)
   6957  1.3  christos     {
   6958  1.3  christos       /* Get a copy of the native relocations.  */
   6959  1.3  christos       if (isec->reloc_count != 0)
   6960  1.3  christos 	{
   6961  1.5  christos 	  internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
   6962  1.3  christos 						       link_info->keep_memory);
   6963  1.5  christos 	  if (internal_relocs == NULL)
   6964  1.3  christos 	    goto error_return;
   6965  1.3  christos 	}
   6966  1.3  christos 
   6967  1.3  christos       got2 = bfd_get_section_by_name (abfd, ".got2");
   6968  1.3  christos 
   6969  1.3  christos       irelend = internal_relocs + isec->reloc_count;
   6970  1.3  christos       for (irel = internal_relocs; irel < irelend; irel++)
   6971  1.3  christos 	{
   6972  1.3  christos 	  unsigned long r_type = ELF32_R_TYPE (irel->r_info);
   6973  1.3  christos 	  bfd_vma toff, roff;
   6974  1.3  christos 	  asection *tsec;
   6975  1.3  christos 	  struct one_branch_fixup *f;
   6976  1.3  christos 	  size_t insn_offset = 0;
   6977  1.1  christos 	  bfd_vma max_branch_offset = 0, val;
   6978  1.3  christos 	  bfd_byte *hit_addr;
   6979  1.3  christos 	  unsigned long t0;
   6980  1.3  christos 	  struct elf_link_hash_entry *h;
   6981  1.3  christos 	  struct plt_entry **plist;
   6982  1.3  christos 	  unsigned char sym_type;
   6983  1.1  christos 
   6984  1.5  christos 	  switch (r_type)
   6985  1.5  christos 	    {
   6986  1.5  christos 	    case R_PPC_REL24:
   6987  1.5  christos 	    case R_PPC_LOCAL24PC:
   6988  1.5  christos 	    case R_PPC_PLTREL24:
   6989  1.3  christos 	      max_branch_offset = 1 << 25;
   6990  1.3  christos 	      break;
   6991  1.1  christos 
   6992  1.1  christos 	    case R_PPC_REL14:
   6993  1.3  christos 	    case R_PPC_REL14_BRTAKEN:
   6994  1.3  christos 	    case R_PPC_REL14_BRNTAKEN:
   6995  1.3  christos 	      max_branch_offset = 1 << 15;
   6996  1.3  christos 	      break;
   6997  1.3  christos 
   6998  1.3  christos 	    case R_PPC_ADDR16_HA:
   6999  1.1  christos 	      if (htab->params->pic_fixup > 0)
   7000  1.3  christos 		break;
   7001  1.3  christos 	      continue;
   7002  1.3  christos 
   7003  1.3  christos 	    default:
   7004  1.3  christos 	      continue;
   7005  1.3  christos 	    }
   7006  1.3  christos 
   7007  1.3  christos 	  /* Get the value of the symbol referred to by the reloc.  */
   7008  1.3  christos 	  h = NULL;
   7009  1.3  christos 	  if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
   7010  1.3  christos 	    {
   7011  1.3  christos 	      /* A local symbol.  */
   7012  1.3  christos 	      Elf_Internal_Sym *isym;
   7013  1.3  christos 
   7014  1.3  christos 	      /* Read this BFD's local symbols.  */
   7015  1.3  christos 	      if (isymbuf == NULL)
   7016  1.3  christos 		{
   7017  1.3  christos 		  isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
   7018  1.3  christos 		  if (isymbuf == NULL)
   7019  1.3  christos 		    isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
   7020  1.1  christos 						    symtab_hdr->sh_info, 0,
   7021  1.3  christos 						    NULL, NULL, NULL);
   7022  1.3  christos 		  if (isymbuf == 0)
   7023  1.1  christos 		    goto error_return;
   7024  1.3  christos 		}
   7025  1.1  christos 	      isym = isymbuf + ELF32_R_SYM (irel->r_info);
   7026  1.3  christos 	      if (isym->st_shndx == SHN_UNDEF)
   7027  1.3  christos 		tsec = bfd_und_section_ptr;
   7028  1.1  christos 	      else if (isym->st_shndx == SHN_ABS)
   7029  1.3  christos 		tsec = bfd_abs_section_ptr;
   7030  1.3  christos 	      else if (isym->st_shndx == SHN_COMMON)
   7031  1.1  christos 		tsec = bfd_com_section_ptr;
   7032  1.3  christos 	      else
   7033  1.3  christos 		tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
   7034  1.3  christos 
   7035  1.1  christos 	      toff = isym->st_value;
   7036  1.3  christos 	      sym_type = ELF_ST_TYPE (isym->st_info);
   7037  1.3  christos 	    }
   7038  1.3  christos 	  else
   7039  1.3  christos 	    {
   7040  1.3  christos 	      /* Global symbol handling.  */
   7041  1.3  christos 	      unsigned long indx;
   7042  1.3  christos 
   7043  1.3  christos 	      indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
   7044  1.1  christos 	      h = elf_sym_hashes (abfd)[indx];
   7045  1.3  christos 
   7046  1.6  christos 	      while (h->root.type == bfd_link_hash_indirect
   7047  1.1  christos 		     || h->root.type == bfd_link_hash_warning)
   7048  1.1  christos 		h = (struct elf_link_hash_entry *) h->root.u.i.link;
   7049  1.3  christos 
   7050  1.3  christos 	      if (h->root.type == bfd_link_hash_defined
   7051  1.3  christos 		  || h->root.type == bfd_link_hash_defweak)
   7052  1.3  christos 		{
   7053  1.3  christos 		  tsec = h->root.u.def.section;
   7054  1.6  christos 		  toff = h->root.u.def.value;
   7055  1.3  christos 		}
   7056  1.3  christos 	      else if (h->root.type == bfd_link_hash_undefined
   7057  1.1  christos 		       || h->root.type == bfd_link_hash_undefweak)
   7058  1.3  christos 		{
   7059  1.3  christos 		  tsec = bfd_und_section_ptr;
   7060  1.3  christos 		  toff = bfd_link_relocatable (link_info) ? indx : 0;
   7061  1.3  christos 		}
   7062  1.3  christos 	      else
   7063  1.3  christos 		continue;
   7064  1.3  christos 
   7065  1.3  christos 	      /* If this branch is to __tls_get_addr then we may later
   7066  1.3  christos 		 optimise away the call.  We won't be needing a long-
   7067  1.3  christos 		 branch stub in that case.  */
   7068  1.3  christos 	      if (bfd_link_executable (link_info)
   7069  1.3  christos 		  && h == htab->tls_get_addr
   7070  1.3  christos 		  && irel != internal_relocs)
   7071  1.3  christos 		{
   7072  1.3  christos 		  unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
   7073  1.3  christos 		  unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
   7074  1.3  christos 		  unsigned int tls_mask = 0;
   7075  1.3  christos 
   7076  1.3  christos 		  /* The previous reloc should be one of R_PPC_TLSGD or
   7077  1.3  christos 		     R_PPC_TLSLD, or for older object files, a reloc
   7078  1.3  christos 		     on the __tls_get_addr arg setup insn.  Get tls
   7079  1.3  christos 		     mask bits from the symbol on that reloc.  */
   7080  1.3  christos 		  if (t_symndx < symtab_hdr->sh_info)
   7081  1.3  christos 		    {
   7082  1.3  christos 		      bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   7083  1.1  christos 
   7084  1.3  christos 		      if (local_got_offsets != NULL)
   7085  1.3  christos 			{
   7086  1.3  christos 			  struct plt_entry **local_plt = (struct plt_entry **)
   7087  1.1  christos 			    (local_got_offsets + symtab_hdr->sh_info);
   7088  1.3  christos 			  char *lgot_masks = (char *)
   7089  1.3  christos 			    (local_plt + symtab_hdr->sh_info);
   7090  1.3  christos 			  tls_mask = lgot_masks[t_symndx];
   7091  1.1  christos 			}
   7092  1.3  christos 		    }
   7093  1.3  christos 		  else
   7094  1.3  christos 		    {
   7095  1.3  christos 		      struct elf_link_hash_entry *th
   7096  1.3  christos 			= elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
   7097  1.3  christos 
   7098  1.3  christos 		      while (th->root.type == bfd_link_hash_indirect
   7099  1.3  christos 			     || th->root.type == bfd_link_hash_warning)
   7100  1.3  christos 			th = (struct elf_link_hash_entry *) th->root.u.i.link;
   7101  1.3  christos 
   7102  1.3  christos 		      tls_mask
   7103  1.3  christos 			= ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
   7104  1.3  christos 		    }
   7105  1.1  christos 
   7106  1.3  christos 		  /* The mask bits tell us if the call will be
   7107  1.3  christos 		     optimised away.  */
   7108  1.1  christos 		  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
   7109  1.5  christos 		      && (t_rtype == R_PPC_TLSGD
   7110  1.5  christos 			  || t_rtype == R_PPC_GOT_TLSGD16
   7111  1.5  christos 			  || t_rtype == R_PPC_GOT_TLSGD16_LO))
   7112  1.5  christos 		    continue;
   7113  1.5  christos 		  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
   7114  1.5  christos 		      && (t_rtype == R_PPC_TLSLD
   7115  1.5  christos 			  || t_rtype == R_PPC_GOT_TLSLD16
   7116  1.5  christos 			  || t_rtype == R_PPC_GOT_TLSLD16_LO))
   7117  1.5  christos 		    continue;
   7118  1.5  christos 		}
   7119  1.5  christos 
   7120  1.3  christos 	      sym_type = h->type;
   7121  1.3  christos 	    }
   7122  1.3  christos 
   7123  1.3  christos 	  if (r_type == R_PPC_ADDR16_HA)
   7124  1.3  christos 	    {
   7125  1.3  christos 	      if (h != NULL
   7126  1.3  christos 		  && !h->def_regular
   7127  1.3  christos 		  && h->protected_def
   7128  1.3  christos 		  && ppc_elf_hash_entry (h)->has_addr16_ha
   7129  1.3  christos 		  && ppc_elf_hash_entry (h)->has_addr16_lo)
   7130  1.3  christos 		picfixup_size += 12;
   7131  1.3  christos 	      continue;
   7132  1.3  christos 	    }
   7133  1.3  christos 
   7134  1.3  christos 	  /* The condition here under which we call find_plt_ent must
   7135  1.3  christos 	     match that in relocate_section.  If we call find_plt_ent here
   7136  1.3  christos 	     but not in relocate_section, or vice versa, then the branch
   7137  1.3  christos 	     destination used here may be incorrect.  */
   7138  1.3  christos 	  plist = NULL;
   7139  1.3  christos 	  if (h != NULL)
   7140  1.3  christos 	    {
   7141  1.3  christos 	      /* We know is_branch_reloc (r_type) is true.  */
   7142  1.3  christos 	      if (h->type == STT_GNU_IFUNC
   7143  1.3  christos 		  || r_type == R_PPC_PLTREL24)
   7144  1.1  christos 		plist = &h->plt.plist;
   7145  1.6  christos 	    }
   7146  1.3  christos 	  else if (sym_type == STT_GNU_IFUNC
   7147  1.3  christos 		   && elf_local_got_offsets (abfd) != NULL)
   7148  1.3  christos 	    {
   7149  1.3  christos 	      bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   7150  1.3  christos 	      struct plt_entry **local_plt = (struct plt_entry **)
   7151  1.3  christos 		(local_got_offsets + symtab_hdr->sh_info);
   7152  1.3  christos 	      plist = local_plt + ELF32_R_SYM (irel->r_info);
   7153  1.3  christos 	    }
   7154  1.3  christos 	  if (plist != NULL)
   7155  1.3  christos 	    {
   7156  1.3  christos 	      bfd_vma addend = 0;
   7157  1.3  christos 	      struct plt_entry *ent;
   7158  1.3  christos 
   7159  1.3  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
   7160  1.3  christos 		addend = irel->r_addend;
   7161  1.3  christos 	      ent = find_plt_ent (plist, got2, addend);
   7162  1.3  christos 	      if (ent != NULL)
   7163  1.3  christos 		{
   7164  1.3  christos 		  if (htab->plt_type == PLT_NEW
   7165  1.1  christos 		      || h == NULL
   7166  1.3  christos 		      || !htab->elf.dynamic_sections_created
   7167  1.3  christos 		      || h->dynindx == -1)
   7168  1.3  christos 		    {
   7169  1.3  christos 		      tsec = htab->glink;
   7170  1.1  christos 		      toff = ent->glink_offset;
   7171  1.1  christos 		    }
   7172  1.3  christos 		  else
   7173  1.3  christos 		    {
   7174  1.3  christos 		      tsec = htab->plt;
   7175  1.3  christos 		      toff = ent->plt.offset;
   7176  1.3  christos 		    }
   7177  1.3  christos 		}
   7178  1.3  christos 	    }
   7179  1.3  christos 
   7180  1.3  christos 	  /* If the branch and target are in the same section, you have
   7181  1.3  christos 	     no hope of adding stubs.  We'll error out later should the
   7182  1.3  christos 	     branch overflow.  */
   7183  1.3  christos 	  if (tsec == isec)
   7184  1.3  christos 	    continue;
   7185  1.3  christos 
   7186  1.3  christos 	  /* There probably isn't any reason to handle symbols in
   7187  1.3  christos 	     SEC_MERGE sections;  SEC_MERGE doesn't seem a likely
   7188  1.3  christos 	     attribute for a code section, and we are only looking at
   7189  1.3  christos 	     branches.  However, implement it correctly here as a
   7190  1.3  christos 	     reference for other target relax_section functions.  */
   7191  1.3  christos 	  if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
   7192  1.3  christos 	    {
   7193  1.3  christos 	      /* At this stage in linking, no SEC_MERGE symbol has been
   7194  1.3  christos 		 adjusted, so all references to such symbols need to be
   7195  1.3  christos 		 passed through _bfd_merged_section_offset.  (Later, in
   7196  1.3  christos 		 relocate_section, all SEC_MERGE symbols *except* for
   7197  1.3  christos 		 section symbols have been adjusted.)
   7198  1.3  christos 
   7199  1.3  christos 		 gas may reduce relocations against symbols in SEC_MERGE
   7200  1.3  christos 		 sections to a relocation against the section symbol when
   7201  1.3  christos 		 the original addend was zero.  When the reloc is against
   7202  1.1  christos 		 a section symbol we should include the addend in the
   7203  1.3  christos 		 offset passed to _bfd_merged_section_offset, since the
   7204  1.3  christos 		 location of interest is the original symbol.  On the
   7205  1.3  christos 		 other hand, an access to "sym+addend" where "sym" is not
   7206  1.3  christos 		 a section symbol should not include the addend;  Such an
   7207  1.3  christos 		 access is presumed to be an offset from "sym";  The
   7208  1.3  christos 		 location of interest is just "sym".  */
   7209  1.1  christos 	      if (sym_type == STT_SECTION)
   7210  1.3  christos 		toff += irel->r_addend;
   7211  1.6  christos 
   7212  1.3  christos 	      toff
   7213  1.3  christos 		= _bfd_merged_section_offset (abfd, &tsec,
   7214  1.3  christos 					      elf_section_data (tsec)->sec_info,
   7215  1.3  christos 					      toff);
   7216  1.1  christos 
   7217  1.1  christos 	      if (sym_type != STT_SECTION)
   7218  1.3  christos 		toff += irel->r_addend;
   7219  1.3  christos 	    }
   7220  1.3  christos 	  /* PLTREL24 addends are special.  */
   7221  1.3  christos 	  else if (r_type != R_PPC_PLTREL24)
   7222  1.6  christos 	    toff += irel->r_addend;
   7223  1.3  christos 
   7224  1.3  christos 	  /* Attempted -shared link of non-pic code loses.  */
   7225  1.3  christos 	  if ((!bfd_link_relocatable (link_info)
   7226  1.3  christos 	       && tsec == bfd_und_section_ptr)
   7227  1.3  christos 	      || tsec->output_section == NULL
   7228  1.3  christos 	      || (tsec->owner != NULL
   7229  1.3  christos 		  && (tsec->owner->flags & BFD_PLUGIN) != 0))
   7230  1.3  christos 	    continue;
   7231  1.3  christos 
   7232  1.3  christos 	  roff = irel->r_offset;
   7233  1.3  christos 
   7234  1.1  christos 	  /* If the branch is in range, no need to do anything.  */
   7235  1.3  christos 	  if (tsec != bfd_und_section_ptr
   7236  1.3  christos 	      && (!bfd_link_relocatable (link_info)
   7237  1.5  christos 		  /* A relocatable link may have sections moved during
   7238  1.3  christos 		     final link, so do not presume they remain in range.  */
   7239  1.3  christos 		  || tsec->output_section == isec->output_section))
   7240  1.3  christos 	    {
   7241  1.3  christos 	      bfd_vma symaddr, reladdr;
   7242  1.1  christos 
   7243  1.3  christos 	      symaddr = tsec->output_section->vma + tsec->output_offset + toff;
   7244  1.3  christos 	      reladdr = isec->output_section->vma + isec->output_offset + roff;
   7245  1.1  christos 	      if (symaddr - reladdr + max_branch_offset
   7246  1.3  christos 		  < 2 * max_branch_offset)
   7247  1.3  christos 		continue;
   7248  1.3  christos 	    }
   7249  1.3  christos 
   7250  1.3  christos 	  /* Look for an existing fixup to this address.  */
   7251  1.1  christos 	  for (f = branch_fixups; f ; f = f->next)
   7252  1.6  christos 	    if (f->tsec == tsec && f->toff == toff)
   7253  1.3  christos 	      break;
   7254  1.3  christos 
   7255  1.3  christos 	  if (f == NULL)
   7256  1.3  christos 	    {
   7257  1.3  christos 	      size_t size;
   7258  1.3  christos 	      unsigned long stub_rtype;
   7259  1.3  christos 
   7260  1.3  christos 	      val = trampoff - roff;
   7261  1.3  christos 	      if (val >= max_branch_offset)
   7262  1.3  christos 		/* Oh dear, we can't reach a trampoline.  Don't try to add
   7263  1.3  christos 		   one.  We'll report an error later.  */
   7264  1.3  christos 		continue;
   7265  1.3  christos 
   7266  1.3  christos 	      if (bfd_link_pic (link_info))
   7267  1.3  christos 		{
   7268  1.3  christos 		  size = 4 * ARRAY_SIZE (shared_stub_entry);
   7269  1.3  christos 		  insn_offset = 12;
   7270  1.1  christos 		}
   7271  1.3  christos 	      else
   7272  1.3  christos 		{
   7273  1.3  christos 		  size = 4 * ARRAY_SIZE (stub_entry);
   7274  1.3  christos 		  insn_offset = 0;
   7275  1.3  christos 		}
   7276  1.3  christos 	      stub_rtype = R_PPC_RELAX;
   7277  1.3  christos 	      if (tsec == htab->plt
   7278  1.3  christos 		  || tsec == htab->glink)
   7279  1.3  christos 		{
   7280  1.3  christos 		  stub_rtype = R_PPC_RELAX_PLT;
   7281  1.3  christos 		  if (r_type == R_PPC_PLTREL24)
   7282  1.5  christos 		    stub_rtype = R_PPC_RELAX_PLTREL24;
   7283  1.3  christos 		}
   7284  1.3  christos 
   7285  1.3  christos 	      /* Hijack the old relocation.  Since we need two
   7286  1.5  christos 		 relocations for this use a "composite" reloc.  */
   7287  1.1  christos 	      irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
   7288  1.3  christos 					   stub_rtype);
   7289  1.3  christos 	      irel->r_offset = trampoff + insn_offset;
   7290  1.3  christos 	      if (r_type == R_PPC_PLTREL24
   7291  1.1  christos 		  && stub_rtype != R_PPC_RELAX_PLTREL24)
   7292  1.1  christos 		irel->r_addend = 0;
   7293  1.3  christos 
   7294  1.3  christos 	      /* Record the fixup so we don't do it again this section.  */
   7295  1.3  christos 	      f = bfd_malloc (sizeof (*f));
   7296  1.3  christos 	      f->next = branch_fixups;
   7297  1.3  christos 	      f->tsec = tsec;
   7298  1.3  christos 	      f->toff = toff;
   7299  1.3  christos 	      f->trampoff = trampoff;
   7300  1.3  christos 	      branch_fixups = f;
   7301  1.3  christos 
   7302  1.3  christos 	      trampoff += size;
   7303  1.3  christos 	      changes++;
   7304  1.3  christos 	    }
   7305  1.3  christos 	  else
   7306  1.3  christos 	    {
   7307  1.1  christos 	      val = f->trampoff - roff;
   7308  1.3  christos 	      if (val >= max_branch_offset)
   7309  1.1  christos 		continue;
   7310  1.1  christos 
   7311  1.1  christos 	      /* Nop out the reloc, since we're finalizing things here.  */
   7312  1.3  christos 	      irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7313  1.3  christos 	    }
   7314  1.3  christos 
   7315  1.3  christos 	  /* Get the section contents.  */
   7316  1.3  christos 	  if (contents == NULL)
   7317  1.3  christos 	    {
   7318  1.3  christos 	      /* Get cached copy if it exists.  */
   7319  1.3  christos 	      if (elf_section_data (isec)->this_hdr.contents != NULL)
   7320  1.3  christos 		contents = elf_section_data (isec)->this_hdr.contents;
   7321  1.3  christos 	      /* Go get them off disk.  */
   7322  1.3  christos 	      else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
   7323  1.3  christos 		goto error_return;
   7324  1.1  christos 	    }
   7325  1.3  christos 
   7326  1.3  christos 	  /* Fix up the existing branch to hit the trampoline.  */
   7327  1.3  christos 	  hit_addr = contents + roff;
   7328  1.3  christos 	  switch (r_type)
   7329  1.3  christos 	    {
   7330  1.3  christos 	    case R_PPC_REL24:
   7331  1.3  christos 	    case R_PPC_LOCAL24PC:
   7332  1.3  christos 	    case R_PPC_PLTREL24:
   7333  1.3  christos 	      t0 = bfd_get_32 (abfd, hit_addr);
   7334  1.1  christos 	      t0 &= ~0x3fffffc;
   7335  1.1  christos 	      t0 |= val & 0x3fffffc;
   7336  1.5  christos 	      bfd_put_32 (abfd, t0, hit_addr);
   7337  1.1  christos 	      break;
   7338  1.5  christos 
   7339  1.5  christos 	    case R_PPC_REL14:
   7340  1.1  christos 	    case R_PPC_REL14_BRTAKEN:
   7341  1.1  christos 	    case R_PPC_REL14_BRNTAKEN:
   7342  1.3  christos 	      t0 = bfd_get_32 (abfd, hit_addr);
   7343  1.1  christos 	      t0 &= ~0xfffc;
   7344  1.3  christos 	      t0 |= val & 0xfffc;
   7345  1.3  christos 	      bfd_put_32 (abfd, t0, hit_addr);
   7346  1.3  christos 	      break;
   7347  1.6  christos 	    }
   7348  1.3  christos 	}
   7349  1.3  christos 
   7350  1.3  christos       while (branch_fixups != NULL)
   7351  1.3  christos 	{
   7352  1.3  christos 	  struct one_branch_fixup *f = branch_fixups;
   7353  1.3  christos 	  branch_fixups = branch_fixups->next;
   7354  1.3  christos 	  free (f);
   7355  1.3  christos 	}
   7356  1.3  christos     }
   7357  1.3  christos 
   7358  1.3  christos   workaround_change = FALSE;
   7359  1.3  christos   newsize = trampoff;
   7360  1.3  christos   if (htab->params->ppc476_workaround
   7361  1.3  christos       && (!bfd_link_relocatable (link_info)
   7362  1.3  christos 	  || isec->output_section->alignment_power >= htab->params->pagesize_p2))
   7363  1.3  christos     {
   7364  1.3  christos       bfd_vma addr, end_addr;
   7365  1.3  christos       unsigned int crossings;
   7366  1.3  christos       bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   7367  1.3  christos 
   7368  1.3  christos       addr = isec->output_section->vma + isec->output_offset;
   7369  1.3  christos       end_addr = addr + trampoff;
   7370  1.3  christos       addr &= -pagesize;
   7371  1.3  christos       crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
   7372  1.1  christos       if (crossings != 0)
   7373  1.3  christos 	{
   7374  1.3  christos 	  /* Keep space aligned, to ensure the patch code itself does
   7375  1.1  christos 	     not cross a page.  Don't decrease size calculated on a
   7376  1.5  christos 	     previous pass as otherwise we might never settle on a layout.  */
   7377  1.5  christos 	  newsize = 15 - ((end_addr - 1) & 15);
   7378  1.5  christos 	  newsize += crossings * 16;
   7379  1.5  christos 	  if (relax_info->workaround_size < newsize)
   7380  1.5  christos 	    {
   7381  1.5  christos 	      relax_info->workaround_size = newsize;
   7382  1.5  christos 	      workaround_change = TRUE;
   7383  1.5  christos 	    }
   7384  1.5  christos 	  /* Ensure relocate_section is called.  */
   7385  1.3  christos 	  isec->flags |= SEC_RELOC;
   7386  1.1  christos 	}
   7387  1.1  christos       newsize = trampoff + relax_info->workaround_size;
   7388  1.1  christos     }
   7389  1.1  christos 
   7390  1.1  christos   if (htab->params->pic_fixup > 0)
   7391  1.1  christos     {
   7392  1.1  christos       picfixup_size -= relax_info->picfixup_size;
   7393  1.1  christos       if (picfixup_size != 0)
   7394  1.1  christos 	relax_info->picfixup_size += picfixup_size;
   7395  1.1  christos       newsize += relax_info->picfixup_size;
   7396  1.1  christos     }
   7397  1.1  christos 
   7398  1.1  christos   if (changes != 0 || picfixup_size != 0 || workaround_change)
   7399  1.1  christos     isec->size = newsize;
   7400  1.1  christos 
   7401  1.1  christos   if (isymbuf != NULL
   7402  1.1  christos       && symtab_hdr->contents != (unsigned char *) isymbuf)
   7403  1.1  christos     {
   7404  1.1  christos       if (! link_info->keep_memory)
   7405  1.1  christos 	free (isymbuf);
   7406  1.1  christos       else
   7407  1.1  christos 	{
   7408  1.1  christos 	  /* Cache the symbols for elf_link_input_bfd.  */
   7409  1.1  christos 	  symtab_hdr->contents = (unsigned char *) isymbuf;
   7410  1.1  christos 	}
   7411  1.5  christos     }
   7412  1.1  christos 
   7413  1.1  christos   if (contents != NULL
   7414  1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7415  1.1  christos     {
   7416  1.1  christos       if (!changes && !link_info->keep_memory)
   7417  1.1  christos 	free (contents);
   7418  1.1  christos       else
   7419  1.1  christos 	{
   7420  1.1  christos 	  /* Cache the section contents for elf_link_input_bfd.  */
   7421  1.1  christos 	  elf_section_data (isec)->this_hdr.contents = contents;
   7422  1.1  christos 	}
   7423  1.1  christos     }
   7424  1.1  christos 
   7425  1.1  christos   changes += picfixup_size;
   7426  1.1  christos   if (changes != 0)
   7427  1.1  christos     {
   7428  1.1  christos       /* Append sufficient NOP relocs so we can write out relocation
   7429  1.1  christos 	 information for the trampolines.  */
   7430  1.1  christos       Elf_Internal_Shdr *rel_hdr;
   7431  1.1  christos       Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
   7432  1.1  christos 						  * sizeof (*new_relocs));
   7433  1.1  christos       unsigned ix;
   7434  1.1  christos 
   7435  1.1  christos       if (!new_relocs)
   7436  1.1  christos 	goto error_return;
   7437  1.1  christos       memcpy (new_relocs, internal_relocs,
   7438  1.3  christos 	      isec->reloc_count * sizeof (*new_relocs));
   7439  1.3  christos       for (ix = changes; ix--;)
   7440  1.1  christos 	{
   7441  1.1  christos 	  irel = new_relocs + ix + isec->reloc_count;
   7442  1.3  christos 
   7443  1.1  christos 	  irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7444  1.1  christos 	}
   7445  1.1  christos       if (internal_relocs != elf_section_data (isec)->relocs)
   7446  1.5  christos 	free (internal_relocs);
   7447  1.3  christos       elf_section_data (isec)->relocs = new_relocs;
   7448  1.5  christos       isec->reloc_count += changes;
   7449  1.5  christos       rel_hdr = _bfd_elf_single_rel_hdr (isec);
   7450  1.3  christos       rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
   7451  1.3  christos     }
   7452  1.1  christos   else if (internal_relocs != NULL
   7453  1.1  christos 	   && elf_section_data (isec)->relocs != internal_relocs)
   7454  1.1  christos     free (internal_relocs);
   7455  1.1  christos 
   7456  1.1  christos   *again = changes != 0 || workaround_change;
   7457  1.1  christos   return TRUE;
   7458  1.1  christos 
   7459  1.1  christos  error_return:
   7460  1.1  christos   while (branch_fixups != NULL)
   7461  1.1  christos     {
   7462  1.1  christos       struct one_branch_fixup *f = branch_fixups;
   7463  1.1  christos       branch_fixups = branch_fixups->next;
   7464  1.1  christos       free (f);
   7465  1.1  christos     }
   7466  1.1  christos   if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
   7467  1.1  christos     free (isymbuf);
   7468  1.1  christos   if (contents != NULL
   7469  1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7470  1.1  christos     free (contents);
   7471  1.1  christos   if (internal_relocs != NULL
   7472  1.1  christos       && elf_section_data (isec)->relocs != internal_relocs)
   7473  1.1  christos     free (internal_relocs);
   7474  1.1  christos   return FALSE;
   7475  1.1  christos }
   7476  1.1  christos 
   7477  1.1  christos /* What to do when ld finds relocations against symbols defined in
   7479  1.1  christos    discarded sections.  */
   7480  1.1  christos 
   7481  1.1  christos static unsigned int
   7482  1.1  christos ppc_elf_action_discarded (asection *sec)
   7483  1.1  christos {
   7484  1.1  christos   if (strcmp (".fixup", sec->name) == 0)
   7485  1.1  christos     return 0;
   7486  1.1  christos 
   7487  1.1  christos   if (strcmp (".got2", sec->name) == 0)
   7488  1.1  christos     return 0;
   7489  1.1  christos 
   7490  1.1  christos   return _bfd_elf_default_action_discarded (sec);
   7491  1.1  christos }
   7492  1.1  christos 
   7493  1.1  christos /* Fill in the address for a pointer generated in a linker section.  */
   7495  1.1  christos 
   7496  1.1  christos static bfd_vma
   7497  1.1  christos elf_finish_pointer_linker_section (bfd *input_bfd,
   7498  1.1  christos 				   elf_linker_section_t *lsect,
   7499  1.1  christos 				   struct elf_link_hash_entry *h,
   7500  1.1  christos 				   bfd_vma relocation,
   7501  1.1  christos 				   const Elf_Internal_Rela *rel)
   7502  1.1  christos {
   7503  1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   7504  1.1  christos 
   7505  1.1  christos   BFD_ASSERT (lsect != NULL);
   7506  1.1  christos 
   7507  1.1  christos   if (h != NULL)
   7508  1.1  christos     {
   7509  1.1  christos       /* Handle global symbol.  */
   7510  1.1  christos       struct ppc_elf_link_hash_entry *eh;
   7511  1.1  christos 
   7512  1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   7513  1.1  christos       BFD_ASSERT (eh->elf.def_regular);
   7514  1.1  christos       linker_section_ptr = eh->linker_section_pointer;
   7515  1.1  christos     }
   7516  1.1  christos   else
   7517  1.1  christos     {
   7518  1.1  christos       /* Handle local symbol.  */
   7519  1.1  christos       unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   7520  1.1  christos 
   7521  1.1  christos       BFD_ASSERT (is_ppc_elf (input_bfd));
   7522  1.1  christos       BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
   7523  1.1  christos       linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
   7524  1.1  christos     }
   7525  1.1  christos 
   7526  1.1  christos   linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
   7527  1.1  christos 							rel->r_addend,
   7528  1.1  christos 							lsect);
   7529  1.1  christos   BFD_ASSERT (linker_section_ptr != NULL);
   7530  1.1  christos 
   7531  1.1  christos   /* Offset will always be a multiple of four, so use the bottom bit
   7532  1.1  christos      as a "written" flag.  */
   7533  1.1  christos   if ((linker_section_ptr->offset & 1) == 0)
   7534  1.1  christos     {
   7535  1.1  christos       bfd_put_32 (lsect->section->owner,
   7536  1.1  christos 		  relocation + linker_section_ptr->addend,
   7537  1.1  christos 		  lsect->section->contents + linker_section_ptr->offset);
   7538  1.1  christos       linker_section_ptr->offset += 1;
   7539  1.1  christos     }
   7540  1.1  christos 
   7541  1.1  christos   relocation = (lsect->section->output_section->vma
   7542  1.1  christos 		+ lsect->section->output_offset
   7543  1.1  christos 		+ linker_section_ptr->offset - 1
   7544  1.1  christos 		- SYM_VAL (lsect->sym));
   7545  1.1  christos 
   7546  1.1  christos #ifdef DEBUG
   7547  1.1  christos   fprintf (stderr,
   7548  1.1  christos 	   "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
   7549  1.1  christos 	   lsect->name, (long) relocation, (long) relocation);
   7550  1.1  christos #endif
   7551  1.1  christos 
   7552  1.1  christos   return relocation;
   7553  1.1  christos }
   7554  1.1  christos 
   7555  1.6  christos #define PPC_LO(v) ((v) & 0xffff)
   7556  1.1  christos #define PPC_HI(v) (((v) >> 16) & 0xffff)
   7557  1.1  christos #define PPC_HA(v) PPC_HI ((v) + 0x8000)
   7558  1.1  christos 
   7559  1.1  christos static void
   7560  1.1  christos write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
   7561  1.1  christos 		  struct bfd_link_info *info)
   7562  1.1  christos {
   7563  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   7564  1.1  christos   bfd *output_bfd = info->output_bfd;
   7565  1.1  christos   bfd_vma plt;
   7566  1.1  christos 
   7567  1.1  christos   plt = ((ent->plt.offset & ~1)
   7568  1.1  christos 	 + plt_sec->output_section->vma
   7569  1.1  christos 	 + plt_sec->output_offset);
   7570  1.1  christos 
   7571  1.1  christos   if (bfd_link_pic (info))
   7572  1.1  christos     {
   7573  1.1  christos       bfd_vma got = 0;
   7574  1.1  christos 
   7575  1.1  christos       if (ent->addend >= 32768)
   7576  1.3  christos 	got = (ent->addend
   7577  1.1  christos 	       + ent->sec->output_section->vma
   7578  1.1  christos 	       + ent->sec->output_offset);
   7579  1.1  christos       else if (htab->elf.hgot != NULL)
   7580  1.1  christos 	got = SYM_VAL (htab->elf.hgot);
   7581  1.1  christos 
   7582  1.1  christos       plt -= got;
   7583  1.1  christos 
   7584  1.1  christos       if (plt + 0x8000 < 0x10000)
   7585  1.1  christos 	{
   7586  1.1  christos 	  bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
   7587  1.1  christos 	  p += 4;
   7588  1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_11, p);
   7589  1.1  christos 	  p += 4;
   7590  1.1  christos 	  bfd_put_32 (output_bfd, BCTR, p);
   7591  1.1  christos 	  p += 4;
   7592  1.1  christos 	  bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
   7593  1.1  christos 	  p += 4;
   7594  1.1  christos 	}
   7595  1.1  christos       else
   7596  1.1  christos 	{
   7597  1.1  christos 	  bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
   7598  1.1  christos 	  p += 4;
   7599  1.1  christos 	  bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7600  1.1  christos 	  p += 4;
   7601  1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_11, p);
   7602  1.1  christos 	  p += 4;
   7603  1.1  christos 	  bfd_put_32 (output_bfd, BCTR, p);
   7604  1.1  christos 	  p += 4;
   7605  1.1  christos 	}
   7606  1.1  christos     }
   7607  1.1  christos   else
   7608  1.1  christos     {
   7609  1.1  christos       bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
   7610  1.1  christos       p += 4;
   7611  1.1  christos       bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7612  1.1  christos       p += 4;
   7613  1.1  christos       bfd_put_32 (output_bfd, MTCTR_11, p);
   7614  1.1  christos       p += 4;
   7615  1.1  christos       bfd_put_32 (output_bfd, BCTR, p);
   7616  1.1  christos       p += 4;
   7617  1.1  christos     }
   7618  1.1  christos }
   7619  1.1  christos 
   7620  1.1  christos /* Return true if symbol is defined statically.  */
   7621  1.1  christos 
   7622  1.1  christos static bfd_boolean
   7623  1.1  christos is_static_defined (struct elf_link_hash_entry *h)
   7624  1.1  christos {
   7625  1.1  christos   return ((h->root.type == bfd_link_hash_defined
   7626  1.1  christos 	   || h->root.type == bfd_link_hash_defweak)
   7627  1.1  christos 	  && h->root.u.def.section != NULL
   7628  1.1  christos 	  && h->root.u.def.section->output_section != NULL);
   7629  1.1  christos }
   7630  1.1  christos 
   7631  1.1  christos /* If INSN is an opcode that may be used with an @tls operand, return
   7632  1.1  christos    the transformed insn for TLS optimisation, otherwise return 0.  If
   7633  1.1  christos    REG is non-zero only match an insn with RB or RA equal to REG.  */
   7634  1.1  christos 
   7635  1.1  christos unsigned int
   7636  1.1  christos _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
   7637  1.1  christos {
   7638  1.1  christos   unsigned int rtra;
   7639  1.1  christos 
   7640  1.1  christos   if ((insn & (0x3f << 26)) != 31 << 26)
   7641  1.1  christos     return 0;
   7642  1.1  christos 
   7643  1.1  christos   if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
   7644  1.1  christos     rtra = insn & ((1 << 26) - (1 << 16));
   7645  1.1  christos   else if (((insn >> 16) & 0x1f) == reg)
   7646  1.1  christos     rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
   7647  1.1  christos   else
   7648  1.1  christos     return 0;
   7649  1.1  christos 
   7650  1.1  christos   if ((insn & (0x3ff << 1)) == 266 << 1)
   7651  1.1  christos     /* add -> addi.  */
   7652  1.1  christos     insn = 14 << 26;
   7653  1.1  christos   else if ((insn & (0x1f << 1)) == 23 << 1
   7654  1.1  christos 	   && ((insn & (0x1f << 6)) < 14 << 6
   7655  1.1  christos 	       || ((insn & (0x1f << 6)) >= 16 << 6
   7656  1.1  christos 		   && (insn & (0x1f << 6)) < 24 << 6)))
   7657  1.1  christos     /* load and store indexed -> dform.  */
   7658  1.1  christos     insn = (32 | ((insn >> 6) & 0x1f)) << 26;
   7659  1.1  christos   else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
   7660  1.1  christos     /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu.  */
   7661  1.1  christos     insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
   7662  1.1  christos   else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
   7663  1.1  christos     /* lwax -> lwa.  */
   7664  1.1  christos     insn = (58 << 26) | 2;
   7665  1.1  christos   else
   7666  1.1  christos     return 0;
   7667  1.1  christos   insn |= rtra;
   7668  1.1  christos   return insn;
   7669  1.1  christos }
   7670  1.1  christos 
   7671  1.1  christos /* If INSN is an opcode that may be used with an @tprel operand, return
   7672  1.1  christos    the transformed insn for an undefined weak symbol, ie. with the
   7673  1.1  christos    thread pointer REG operand removed.  Otherwise return 0.  */
   7674  1.1  christos 
   7675  1.1  christos unsigned int
   7676  1.1  christos _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
   7677  1.1  christos {
   7678  1.1  christos   if ((insn & (0x1f << 16)) == reg << 16
   7679  1.1  christos       && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
   7680  1.1  christos 	  || (insn & (0x3f << 26)) == 15u << 26 /* addis */
   7681  1.1  christos 	  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   7682  1.1  christos 	  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   7683  1.1  christos 	  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   7684  1.1  christos 	  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   7685  1.1  christos 	  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   7686  1.1  christos 	  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   7687  1.1  christos 	  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   7688  1.1  christos 	  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   7689  1.1  christos 	  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   7690  1.1  christos 	  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   7691  1.1  christos 	  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   7692  1.1  christos 	  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   7693  1.1  christos 	  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   7694  1.1  christos 	  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   7695  1.1  christos 	      && (insn & 3) != 1)
   7696  1.1  christos 	  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   7697  1.1  christos 	      && ((insn & 3) == 0 || (insn & 3) == 3))))
   7698  1.1  christos     {
   7699  1.1  christos       insn &= ~(0x1f << 16);
   7700  1.1  christos     }
   7701  1.1  christos   else if ((insn & (0x1f << 21)) == reg << 21
   7702  1.1  christos 	   && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
   7703  1.1  christos 	       || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
   7704  1.1  christos 	       || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
   7705  1.1  christos     {
   7706  1.1  christos       insn &= ~(0x1f << 21);
   7707  1.1  christos       insn |= (insn & (0x1f << 16)) << 5;
   7708  1.1  christos       if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
   7709  1.1  christos 	insn -= 2 >> 26;  /* convert to ori,oris */
   7710  1.1  christos     }
   7711  1.1  christos   else
   7712  1.6  christos     insn = 0;
   7713  1.6  christos   return insn;
   7714  1.6  christos }
   7715  1.1  christos 
   7716  1.1  christos static bfd_boolean
   7717  1.1  christos is_insn_ds_form (unsigned int insn)
   7718  1.1  christos {
   7719  1.1  christos   return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
   7720  1.1  christos 	  || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
   7721  1.1  christos 	  || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
   7722  1.1  christos 	  || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
   7723  1.1  christos }
   7724  1.1  christos 
   7725  1.1  christos static bfd_boolean
   7726  1.1  christos is_insn_dq_form (unsigned int insn)
   7727  1.1  christos {
   7728  1.1  christos   return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
   7729  1.1  christos 	  || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
   7730  1.1  christos 	      && (insn & 3) == 1));
   7731  1.1  christos }
   7732  1.1  christos 
   7733  1.1  christos /* The RELOCATE_SECTION function is called by the ELF backend linker
   7734  1.1  christos    to handle the relocations for a section.
   7735  1.1  christos 
   7736  1.1  christos    The relocs are always passed as Rela structures; if the section
   7737  1.1  christos    actually uses Rel structures, the r_addend field will always be
   7738  1.1  christos    zero.
   7739  1.1  christos 
   7740  1.1  christos    This function is responsible for adjust the section contents as
   7741  1.1  christos    necessary, and (if using Rela relocs and generating a
   7742  1.1  christos    relocatable output file) adjusting the reloc addend as
   7743  1.1  christos    necessary.
   7744  1.1  christos 
   7745  1.1  christos    This function does not have to worry about setting the reloc
   7746  1.1  christos    address or the reloc symbol index.
   7747  1.1  christos 
   7748  1.1  christos    LOCAL_SYMS is a pointer to the swapped in local symbols.
   7749  1.1  christos 
   7750  1.1  christos    LOCAL_SECTIONS is an array giving the section in the input file
   7751  1.1  christos    corresponding to the st_shndx field of each local symbol.
   7752  1.1  christos 
   7753  1.1  christos    The global hash table entry for the global symbols can be found
   7754  1.1  christos    via elf_sym_hashes (input_bfd).
   7755  1.1  christos 
   7756  1.1  christos    When generating relocatable output, this function must handle
   7757  1.1  christos    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
   7758  1.1  christos    going to be the section symbol corresponding to the output
   7759  1.1  christos    section, which means that the addend must be adjusted
   7760  1.6  christos    accordingly.  */
   7761  1.1  christos 
   7762  1.1  christos static bfd_boolean
   7763  1.1  christos ppc_elf_relocate_section (bfd *output_bfd,
   7764  1.1  christos 			  struct bfd_link_info *info,
   7765  1.1  christos 			  bfd *input_bfd,
   7766  1.1  christos 			  asection *input_section,
   7767  1.1  christos 			  bfd_byte *contents,
   7768  1.5  christos 			  Elf_Internal_Rela *relocs,
   7769  1.5  christos 			  Elf_Internal_Sym *local_syms,
   7770  1.1  christos 			  asection **local_sections)
   7771  1.1  christos {
   7772  1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   7773  1.1  christos   struct elf_link_hash_entry **sym_hashes;
   7774  1.1  christos   struct ppc_elf_link_hash_table *htab;
   7775  1.1  christos   Elf_Internal_Rela *rel;
   7776  1.6  christos   Elf_Internal_Rela *wrel;
   7777  1.1  christos   Elf_Internal_Rela *relend;
   7778  1.1  christos   Elf_Internal_Rela outrel;
   7779  1.1  christos   asection *got2;
   7780  1.1  christos   bfd_vma *local_got_offsets;
   7781  1.1  christos   bfd_boolean ret = TRUE;
   7782  1.1  christos   bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
   7783  1.1  christos   bfd_boolean is_vxworks_tls;
   7784  1.1  christos   unsigned int picfixup_size = 0;
   7785  1.1  christos   struct ppc_elf_relax_info *relax_info = NULL;
   7786  1.1  christos 
   7787  1.1  christos #ifdef DEBUG
   7788  1.1  christos   _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
   7789  1.1  christos 		      "%ld relocations%s",
   7790  1.1  christos 		      input_bfd, input_section,
   7791  1.6  christos 		      (long) input_section->reloc_count,
   7792  1.1  christos 		      (bfd_link_relocatable (info)) ? " (relocatable)" : "");
   7793  1.1  christos #endif
   7794  1.5  christos 
   7795  1.5  christos   got2 = bfd_get_section_by_name (input_bfd, ".got2");
   7796  1.6  christos 
   7797  1.1  christos   /* Initialize howto table if not already done.  */
   7798  1.6  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   7799  1.1  christos     ppc_elf_howto_init ();
   7800  1.1  christos 
   7801  1.1  christos   htab = ppc_elf_hash_table (info);
   7802  1.1  christos   local_got_offsets = elf_local_got_offsets (input_bfd);
   7803  1.1  christos   symtab_hdr = &elf_symtab_hdr (input_bfd);
   7804  1.1  christos   sym_hashes = elf_sym_hashes (input_bfd);
   7805  1.1  christos   /* We have to handle relocations in vxworks .tls_vars sections
   7806  1.1  christos      specially, because the dynamic loader is 'weird'.  */
   7807  1.1  christos   is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
   7808  1.1  christos 		    && !strcmp (input_section->output_section->name,
   7809  1.1  christos 				".tls_vars"));
   7810  1.1  christos   if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
   7811  1.1  christos     relax_info = elf_section_data (input_section)->sec_info;
   7812  1.1  christos   rel = wrel = relocs;
   7813  1.1  christos   relend = relocs + input_section->reloc_count;
   7814  1.1  christos   for (; rel < relend; wrel++, rel++)
   7815  1.3  christos     {
   7816  1.1  christos       enum elf_ppc_reloc_type r_type;
   7817  1.6  christos       bfd_vma addend;
   7818  1.1  christos       bfd_reloc_status_type r;
   7819  1.1  christos       Elf_Internal_Sym *sym;
   7820  1.1  christos       asection *sec;
   7821  1.1  christos       struct elf_link_hash_entry *h;
   7822  1.1  christos       const char *sym_name;
   7823  1.1  christos       reloc_howto_type *howto;
   7824  1.1  christos       unsigned long r_symndx;
   7825  1.1  christos       bfd_vma relocation;
   7826  1.1  christos       bfd_vma branch_bit, from;
   7827  1.1  christos       bfd_boolean unresolved_reloc;
   7828  1.1  christos       bfd_boolean warned;
   7829  1.1  christos       unsigned int tls_type, tls_mask, tls_gd;
   7830  1.1  christos       struct plt_entry **ifunc;
   7831  1.1  christos       struct reloc_howto_struct alt_howto;
   7832  1.1  christos 
   7833  1.1  christos     again:
   7834  1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   7835  1.1  christos       sym = NULL;
   7836  1.1  christos       sec = NULL;
   7837  1.1  christos       h = NULL;
   7838  1.1  christos       unresolved_reloc = FALSE;
   7839  1.1  christos       warned = FALSE;
   7840  1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   7841  1.1  christos 
   7842  1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   7843  1.1  christos 	{
   7844  1.1  christos 	  sym = local_syms + r_symndx;
   7845  1.1  christos 	  sec = local_sections[r_symndx];
   7846  1.1  christos 	  sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
   7847  1.1  christos 
   7848  1.1  christos 	  relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
   7849  1.1  christos 	}
   7850  1.1  christos       else
   7851  1.1  christos 	{
   7852  1.1  christos 	  bfd_boolean ignored;
   7853  1.1  christos 
   7854  1.6  christos 	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
   7855  1.6  christos 				   r_symndx, symtab_hdr, sym_hashes,
   7856  1.6  christos 				   h, sec, relocation,
   7857  1.6  christos 				   unresolved_reloc, warned, ignored);
   7858  1.6  christos 
   7859  1.6  christos 	  sym_name = h->root.root.string;
   7860  1.6  christos 	}
   7861  1.6  christos 
   7862  1.6  christos       if (sec != NULL && discarded_section (sec))
   7863  1.6  christos 	{
   7864  1.6  christos 	  /* For relocs against symbols from removed linkonce sections,
   7865  1.6  christos 	     or sections discarded by a linker script, we just want the
   7866  1.6  christos 	     section contents zeroed.  Avoid any special processing.  */
   7867  1.6  christos 	  howto = NULL;
   7868  1.6  christos 	  if (r_type < R_PPC_max)
   7869  1.6  christos 	    howto = ppc_elf_howto_table[r_type];
   7870  1.1  christos 
   7871  1.1  christos 	  _bfd_clear_contents (howto, input_bfd, input_section,
   7872  1.6  christos 			       contents + rel->r_offset);
   7873  1.1  christos 	  wrel->r_offset = rel->r_offset;
   7874  1.1  christos 	  wrel->r_info = 0;
   7875  1.1  christos 	  wrel->r_addend = 0;
   7876  1.1  christos 
   7877  1.1  christos 	  /* For ld -r, remove relocations in debug sections against
   7878  1.1  christos 	     sections defined in discarded sections.  Not done for
   7879  1.1  christos 	     non-debug to preserve relocs in .eh_frame which the
   7880  1.1  christos 	     eh_frame editing code expects to be present.  */
   7881  1.1  christos 	  if (bfd_link_relocatable (info)
   7882  1.3  christos 	      && (input_section->flags & SEC_DEBUGGING))
   7883  1.3  christos 	    wrel--;
   7884  1.3  christos 
   7885  1.6  christos 	  continue;
   7886  1.1  christos 	}
   7887  1.1  christos 
   7888  1.1  christos       if (bfd_link_relocatable (info))
   7889  1.1  christos 	{
   7890  1.1  christos 	  if (got2 != NULL
   7891  1.1  christos 	      && r_type == R_PPC_PLTREL24
   7892  1.1  christos 	      && rel->r_addend != 0)
   7893  1.1  christos 	    {
   7894  1.1  christos 	      /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   7895  1.1  christos 		 addend specifies the GOT pointer offset within .got2.  */
   7896  1.1  christos 	      rel->r_addend += got2->output_offset;
   7897  1.1  christos 	    }
   7898  1.1  christos 	  if (r_type != R_PPC_RELAX_PLT
   7899  1.1  christos 	      && r_type != R_PPC_RELAX_PLTREL24
   7900  1.1  christos 	      && r_type != R_PPC_RELAX)
   7901  1.1  christos 	    goto copy_reloc;
   7902  1.1  christos 	}
   7903  1.1  christos 
   7904  1.1  christos       /* TLS optimizations.  Replace instruction sequences and relocs
   7905  1.1  christos 	 based on information we collected in tls_optimize.  We edit
   7906  1.1  christos 	 RELOCS so that --emit-relocs will output something sensible
   7907  1.1  christos 	 for the final instruction stream.  */
   7908  1.1  christos       tls_mask = 0;
   7909  1.1  christos       tls_gd = 0;
   7910  1.1  christos       if (h != NULL)
   7911  1.1  christos 	tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
   7912  1.1  christos       else if (local_got_offsets != NULL)
   7913  1.1  christos 	{
   7914  1.1  christos 	  struct plt_entry **local_plt;
   7915  1.1  christos 	  char *lgot_masks;
   7916  1.1  christos 	  local_plt
   7917  1.1  christos 	    = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
   7918  1.1  christos 	  lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   7919  1.1  christos 	  tls_mask = lgot_masks[r_symndx];
   7920  1.1  christos 	}
   7921  1.1  christos 
   7922  1.1  christos       /* Ensure reloc mapping code below stays sane.  */
   7923  1.1  christos       if ((R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TLSGD16 & 3)
   7924  1.1  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
   7925  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
   7926  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
   7927  1.1  christos 	  || (R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TPREL16 & 3)
   7928  1.6  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
   7929  1.6  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
   7930  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
   7931  1.1  christos 	abort ();
   7932  1.6  christos       switch (r_type)
   7933  1.6  christos 	{
   7934  1.1  christos 	default:
   7935  1.1  christos 	  break;
   7936  1.1  christos 
   7937  1.1  christos 	case R_PPC_GOT_TPREL16:
   7938  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   7939  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   7940  1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   7941  1.1  christos 	    {
   7942  1.1  christos 	      bfd_vma insn;
   7943  1.1  christos 
   7944  1.1  christos 	      insn = bfd_get_32 (output_bfd,
   7945  1.1  christos 				 contents + rel->r_offset - d_offset);
   7946  1.1  christos 	      insn &= 31 << 21;
   7947  1.1  christos 	      insn |= 0x3c020000;	/* addis 0,2,0 */
   7948  1.1  christos 	      bfd_put_32 (output_bfd, insn,
   7949  1.1  christos 			  contents + rel->r_offset - d_offset);
   7950  1.1  christos 	      r_type = R_PPC_TPREL16_HA;
   7951  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7952  1.1  christos 	    }
   7953  1.1  christos 	  break;
   7954  1.1  christos 
   7955  1.1  christos 	case R_PPC_TLS:
   7956  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   7957  1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   7958  1.1  christos 	    {
   7959  1.1  christos 	      bfd_vma insn;
   7960  1.1  christos 
   7961  1.1  christos 	      insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   7962  1.1  christos 	      insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
   7963  1.1  christos 	      if (insn == 0)
   7964  1.1  christos 		abort ();
   7965  1.1  christos 	      bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   7966  1.1  christos 	      r_type = R_PPC_TPREL16_LO;
   7967  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7968  1.1  christos 
   7969  1.1  christos 	      /* Was PPC_TLS which sits on insn boundary, now
   7970  1.1  christos 		 PPC_TPREL16_LO which is at low-order half-word.  */
   7971  1.1  christos 	      rel->r_offset += d_offset;
   7972  1.1  christos 	    }
   7973  1.1  christos 	  break;
   7974  1.1  christos 
   7975  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   7976  1.5  christos 	case R_PPC_GOT_TLSGD16_HA:
   7977  1.1  christos 	  tls_gd = TLS_TPRELGD;
   7978  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   7979  1.1  christos 	    goto tls_gdld_hi;
   7980  1.1  christos 	  break;
   7981  1.1  christos 
   7982  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   7983  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   7984  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   7985  1.1  christos 	    {
   7986  1.1  christos 	    tls_gdld_hi:
   7987  1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   7988  1.1  christos 		r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   7989  1.1  christos 			  + R_PPC_GOT_TPREL16);
   7990  1.1  christos 	      else
   7991  1.1  christos 		{
   7992  1.1  christos 		  rel->r_offset -= d_offset;
   7993  1.1  christos 		  bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
   7994  1.1  christos 		  r_type = R_PPC_NONE;
   7995  1.1  christos 		}
   7996  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7997  1.1  christos 	    }
   7998  1.1  christos 	  break;
   7999  1.1  christos 
   8000  1.1  christos 	case R_PPC_GOT_TLSGD16:
   8001  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   8002  1.1  christos 	  tls_gd = TLS_TPRELGD;
   8003  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   8004  1.1  christos 	    goto tls_ldgd_opt;
   8005  1.1  christos 	  break;
   8006  1.1  christos 
   8007  1.1  christos 	case R_PPC_GOT_TLSLD16:
   8008  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   8009  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   8010  1.5  christos 	    {
   8011  1.5  christos 	      unsigned int insn1, insn2;
   8012  1.5  christos 	      bfd_vma offset;
   8013  1.5  christos 
   8014  1.5  christos 	    tls_ldgd_opt:
   8015  1.5  christos 	      offset = (bfd_vma) -1;
   8016  1.1  christos 	      /* If not using the newer R_PPC_TLSGD/LD to mark
   8017  1.1  christos 		 __tls_get_addr calls, we must trust that the call
   8018  1.1  christos 		 stays with its arg setup insns, ie. that the next
   8019  1.5  christos 		 reloc is the __tls_get_addr call associated with
   8020  1.1  christos 		 the current reloc.  Edit both insns.  */
   8021  1.1  christos 	      if (input_section->has_tls_get_addr_call
   8022  1.1  christos 		  && rel + 1 < relend
   8023  1.1  christos 		  && branch_reloc_hash_match (input_bfd, rel + 1,
   8024  1.1  christos 					      htab->tls_get_addr))
   8025  1.1  christos 		offset = rel[1].r_offset;
   8026  1.1  christos 	      /* We read the low GOT_TLS insn because we need to keep
   8027  1.1  christos 		 the destination reg.  It may be something other than
   8028  1.1  christos 		 the usual r3, and moved to r3 before the call by
   8029  1.1  christos 		 intervening code.  */
   8030  1.1  christos 	      insn1 = bfd_get_32 (output_bfd,
   8031  1.1  christos 				  contents + rel->r_offset - d_offset);
   8032  1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   8033  1.1  christos 		{
   8034  1.5  christos 		  /* IE */
   8035  1.5  christos 		  insn1 &= (0x1f << 21) | (0x1f << 16);
   8036  1.1  christos 		  insn1 |= 32 << 26;	/* lwz */
   8037  1.1  christos 		  if (offset != (bfd_vma) -1)
   8038  1.1  christos 		    {
   8039  1.1  christos 		      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8040  1.1  christos 		      insn2 = 0x7c631214;	/* add 3,3,2 */
   8041  1.1  christos 		      bfd_put_32 (output_bfd, insn2, contents + offset);
   8042  1.1  christos 		    }
   8043  1.1  christos 		  r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   8044  1.1  christos 			    + R_PPC_GOT_TPREL16);
   8045  1.1  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8046  1.1  christos 		}
   8047  1.1  christos 	      else
   8048  1.1  christos 		{
   8049  1.1  christos 		  /* LE */
   8050  1.1  christos 		  insn1 &= 0x1f << 21;
   8051  1.1  christos 		  insn1 |= 0x3c020000;	/* addis r,2,0 */
   8052  1.1  christos 		  if (tls_gd == 0)
   8053  1.1  christos 		    {
   8054  1.1  christos 		      /* Was an LD reloc.  */
   8055  1.1  christos 		      for (r_symndx = 0;
   8056  1.1  christos 			   r_symndx < symtab_hdr->sh_info;
   8057  1.1  christos 			   r_symndx++)
   8058  1.1  christos 			if (local_sections[r_symndx] == sec)
   8059  1.1  christos 			  break;
   8060  1.1  christos 		      if (r_symndx >= symtab_hdr->sh_info)
   8061  1.1  christos 			r_symndx = STN_UNDEF;
   8062  1.1  christos 		      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   8063  1.1  christos 		      if (r_symndx != STN_UNDEF)
   8064  1.1  christos 			rel->r_addend -= (local_syms[r_symndx].st_value
   8065  1.1  christos 					  + sec->output_offset
   8066  1.1  christos 					  + sec->output_section->vma);
   8067  1.1  christos 		    }
   8068  1.1  christos 		  r_type = R_PPC_TPREL16_HA;
   8069  1.6  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8070  1.1  christos 		  if (offset != (bfd_vma) -1)
   8071  1.1  christos 		    {
   8072  1.1  christos 		      rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   8073  1.1  christos 		      rel[1].r_offset = offset + d_offset;
   8074  1.1  christos 		      rel[1].r_addend = rel->r_addend;
   8075  1.1  christos 		      insn2 = 0x38630000;	/* addi 3,3,0 */
   8076  1.1  christos 		      bfd_put_32 (output_bfd, insn2, contents + offset);
   8077  1.1  christos 		    }
   8078  1.1  christos 		}
   8079  1.1  christos 	      bfd_put_32 (output_bfd, insn1,
   8080  1.1  christos 			  contents + rel->r_offset - d_offset);
   8081  1.1  christos 	      if (tls_gd == 0)
   8082  1.1  christos 		{
   8083  1.1  christos 		  /* We changed the symbol on an LD reloc.  Start over
   8084  1.1  christos 		     in order to get h, sym, sec etc. right.  */
   8085  1.1  christos 		  goto again;
   8086  1.1  christos 		}
   8087  1.1  christos 	    }
   8088  1.1  christos 	  break;
   8089  1.1  christos 
   8090  1.1  christos 	case R_PPC_TLSGD:
   8091  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   8092  1.1  christos 	    {
   8093  1.1  christos 	      unsigned int insn2;
   8094  1.1  christos 	      bfd_vma offset = rel->r_offset;
   8095  1.1  christos 
   8096  1.1  christos 	      if ((tls_mask & TLS_TPRELGD) != 0)
   8097  1.1  christos 		{
   8098  1.1  christos 		  /* IE */
   8099  1.1  christos 		  r_type = R_PPC_NONE;
   8100  1.1  christos 		  insn2 = 0x7c631214;	/* add 3,3,2 */
   8101  1.1  christos 		}
   8102  1.1  christos 	      else
   8103  1.1  christos 		{
   8104  1.1  christos 		  /* LE */
   8105  1.1  christos 		  r_type = R_PPC_TPREL16_LO;
   8106  1.1  christos 		  rel->r_offset += d_offset;
   8107  1.1  christos 		  insn2 = 0x38630000;	/* addi 3,3,0 */
   8108  1.1  christos 		}
   8109  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8110  1.1  christos 	      bfd_put_32 (output_bfd, insn2, contents + offset);
   8111  1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   8112  1.1  christos 	      BFD_ASSERT (offset == rel[1].r_offset);
   8113  1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8114  1.1  christos 	    }
   8115  1.1  christos 	  break;
   8116  1.1  christos 
   8117  1.1  christos 	case R_PPC_TLSLD:
   8118  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   8119  1.1  christos 	    {
   8120  1.1  christos 	      unsigned int insn2;
   8121  1.1  christos 
   8122  1.1  christos 	      for (r_symndx = 0;
   8123  1.1  christos 		   r_symndx < symtab_hdr->sh_info;
   8124  1.1  christos 		   r_symndx++)
   8125  1.1  christos 		if (local_sections[r_symndx] == sec)
   8126  1.1  christos 		  break;
   8127  1.6  christos 	      if (r_symndx >= symtab_hdr->sh_info)
   8128  1.1  christos 		r_symndx = STN_UNDEF;
   8129  1.1  christos 	      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   8130  1.1  christos 	      if (r_symndx != STN_UNDEF)
   8131  1.1  christos 		rel->r_addend -= (local_syms[r_symndx].st_value
   8132  1.1  christos 				  + sec->output_offset
   8133  1.1  christos 				  + sec->output_section->vma);
   8134  1.1  christos 
   8135  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   8136  1.1  christos 	      rel->r_offset += d_offset;
   8137  1.1  christos 	      insn2 = 0x38630000;	/* addi 3,3,0 */
   8138  1.1  christos 	      bfd_put_32 (output_bfd, insn2,
   8139  1.1  christos 			  contents + rel->r_offset - d_offset);
   8140  1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   8141  1.1  christos 	      BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
   8142  1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8143  1.1  christos 	      goto again;
   8144  1.1  christos 	    }
   8145  1.1  christos 	  break;
   8146  1.1  christos 	}
   8147  1.1  christos 
   8148  1.1  christos       /* Handle other relocations that tweak non-addend part of insn.  */
   8149  1.1  christos       branch_bit = 0;
   8150  1.1  christos       switch (r_type)
   8151  1.1  christos 	{
   8152  1.1  christos 	default:
   8153  1.1  christos 	  break;
   8154  1.1  christos 
   8155  1.1  christos 	  /* Branch taken prediction relocations.  */
   8156  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   8157  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   8158  1.1  christos 	  branch_bit = BRANCH_PREDICT_BIT;
   8159  1.1  christos 	  /* Fall thru */
   8160  1.1  christos 
   8161  1.1  christos 	  /* Branch not taken prediction relocations.  */
   8162  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   8163  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   8164  1.1  christos 	  {
   8165  1.1  christos 	    bfd_vma insn;
   8166  1.1  christos 
   8167  1.1  christos 	    insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   8168  1.5  christos 	    insn &= ~BRANCH_PREDICT_BIT;
   8169  1.5  christos 	    insn |= branch_bit;
   8170  1.5  christos 
   8171  1.5  christos 	    from = (rel->r_offset
   8172  1.5  christos 		    + input_section->output_offset
   8173  1.5  christos 		    + input_section->output_section->vma);
   8174  1.5  christos 
   8175  1.5  christos 	    /* Invert 'y' bit if not the default.  */
   8176  1.5  christos 	    if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
   8177  1.5  christos 	      insn ^= BRANCH_PREDICT_BIT;
   8178  1.5  christos 
   8179  1.5  christos 	    bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   8180  1.5  christos 	    break;
   8181  1.5  christos 	  }
   8182  1.5  christos 	}
   8183  1.5  christos 
   8184  1.5  christos       if (ELIMINATE_COPY_RELOCS
   8185  1.5  christos 	  && h != NULL
   8186  1.5  christos 	  && !h->def_regular
   8187  1.5  christos 	  && h->protected_def
   8188  1.5  christos 	  && ppc_elf_hash_entry (h)->has_addr16_ha
   8189  1.5  christos 	  && ppc_elf_hash_entry (h)->has_addr16_lo
   8190  1.5  christos 	  && htab->params->pic_fixup > 0)
   8191  1.5  christos 	{
   8192  1.5  christos 	  /* Convert lis;addi or lis;load/store accessing a protected
   8193  1.5  christos 	     variable defined in a shared library to PIC.  */
   8194  1.5  christos 	  unsigned int insn;
   8195  1.5  christos 
   8196  1.5  christos 	  if (r_type == R_PPC_ADDR16_HA)
   8197  1.5  christos 	    {
   8198  1.5  christos 	      insn = bfd_get_32 (output_bfd,
   8199  1.5  christos 				 contents + rel->r_offset - d_offset);
   8200  1.5  christos 	      if ((insn & (0x3f << 26)) == (15u << 26)
   8201  1.5  christos 		  && (insn & (0x1f << 16)) == 0 /* lis */)
   8202  1.5  christos 		{
   8203  1.5  christos 		  bfd_byte *p;
   8204  1.5  christos 		  bfd_vma off;
   8205  1.5  christos 		  bfd_vma got_addr;
   8206  1.6  christos 
   8207  1.6  christos 		  p = (contents + input_section->size
   8208  1.6  christos 		       - relax_info->workaround_size
   8209  1.5  christos 		       - relax_info->picfixup_size
   8210  1.5  christos 		       + picfixup_size);
   8211  1.5  christos 		  off = (p - contents) - (rel->r_offset - d_offset);
   8212  1.5  christos 		  if (off > 0x1fffffc || (off & 3) != 0)
   8213  1.5  christos 		    info->callbacks->einfo
   8214  1.5  christos 		      (_("%P: %H: fixup branch overflow\n"),
   8215  1.5  christos 		       input_bfd, input_section, rel->r_offset);
   8216  1.5  christos 
   8217  1.5  christos 		  bfd_put_32 (output_bfd, B | off,
   8218  1.5  christos 			      contents + rel->r_offset - d_offset);
   8219  1.5  christos 		  got_addr = (htab->got->output_section->vma
   8220  1.5  christos 			      + htab->got->output_offset
   8221  1.5  christos 			      + (h->got.offset & ~1));
   8222  1.5  christos 		  wrel->r_offset = (p - contents) + d_offset;
   8223  1.5  christos 		  wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
   8224  1.5  christos 		  wrel->r_addend = got_addr;
   8225  1.5  christos 		  insn &= ~0xffff;
   8226  1.6  christos 		  insn |= ((unsigned int )(got_addr + 0x8000) >> 16) & 0xffff;
   8227  1.6  christos 		  bfd_put_32 (output_bfd, insn, p);
   8228  1.5  christos 
   8229  1.6  christos 		  /* Convert lis to lwz, loading address from GOT.  */
   8230  1.5  christos 		  insn &= ~0xffff;
   8231  1.5  christos 		  insn ^= (32u ^ 15u) << 26;
   8232  1.5  christos 		  insn |= (insn & (0x1f << 21)) >> 5;
   8233  1.5  christos 		  insn |= got_addr & 0xffff;
   8234  1.5  christos 		  bfd_put_32 (output_bfd, insn, p + 4);
   8235  1.5  christos 
   8236  1.5  christos 		  bfd_put_32 (output_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
   8237  1.5  christos 		  picfixup_size += 12;
   8238  1.5  christos 
   8239  1.5  christos 		  /* Use one of the spare relocs, so --emit-relocs
   8240  1.5  christos 		     output is reasonable.  */
   8241  1.5  christos 		  memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
   8242  1.5  christos 		  wrel++, rel++;
   8243  1.5  christos 		  rel->r_offset = wrel[-1].r_offset + 4;
   8244  1.5  christos 		  rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
   8245  1.5  christos 		  rel->r_addend = wrel[-1].r_addend;
   8246  1.5  christos 
   8247  1.5  christos 		  /* Continue on as if we had a got reloc, to output
   8248  1.5  christos 		     dynamic reloc.  */
   8249  1.5  christos 		  r_type = R_PPC_GOT16_LO;
   8250  1.5  christos 		}
   8251  1.5  christos 	      else
   8252  1.5  christos 		info->callbacks->einfo
   8253  1.5  christos 		  (_("%P: %H: error: %s with unexpected instruction %x\n"),
   8254  1.5  christos 		   input_bfd, input_section, rel->r_offset,
   8255  1.5  christos 		   "R_PPC_ADDR16_HA", insn);
   8256  1.5  christos 	    }
   8257  1.5  christos 	  else if (r_type == R_PPC_ADDR16_LO)
   8258  1.5  christos 	    {
   8259  1.5  christos 	      insn = bfd_get_32 (output_bfd,
   8260  1.5  christos 				 contents + rel->r_offset - d_offset);
   8261  1.5  christos 	      if ((insn & (0x3f << 26)) == 14u << 26    /* addi */
   8262  1.5  christos 		  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   8263  1.5  christos 		  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   8264  1.5  christos 		  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   8265  1.5  christos 		  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   8266  1.5  christos 		  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   8267  1.5  christos 		  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   8268  1.5  christos 		  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   8269  1.5  christos 		  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   8270  1.5  christos 		  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   8271  1.5  christos 		  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   8272  1.5  christos 		  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   8273  1.5  christos 		  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   8274  1.5  christos 		  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   8275  1.5  christos 		  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   8276  1.5  christos 		      && (insn & 3) != 1)
   8277  1.1  christos 		  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   8278  1.1  christos 		      && ((insn & 3) == 0 || (insn & 3) == 3)))
   8279  1.1  christos 		{
   8280  1.1  christos 		  /* Arrange to apply the reloc addend, if any.  */
   8281  1.1  christos 		  relocation = 0;
   8282  1.1  christos 		  unresolved_reloc = FALSE;
   8283  1.1  christos 		  rel->r_info = ELF32_R_INFO (0, r_type);
   8284  1.1  christos 		}
   8285  1.1  christos 	      else
   8286  1.1  christos 		info->callbacks->einfo
   8287  1.1  christos 		  (_("%P: %H: error: %s with unexpected instruction %x\n"),
   8288  1.1  christos 		   input_bfd, input_section, rel->r_offset,
   8289  1.1  christos 		   "R_PPC_ADDR16_LO", insn);
   8290  1.1  christos 	    }
   8291  1.1  christos 	}
   8292  1.1  christos 
   8293  1.1  christos       ifunc = NULL;
   8294  1.1  christos       if (!htab->is_vxworks)
   8295  1.1  christos 	{
   8296  1.1  christos 	  struct plt_entry *ent;
   8297  1.1  christos 
   8298  1.1  christos 	  if (h != NULL)
   8299  1.6  christos 	    {
   8300  1.1  christos 	      if (h->type == STT_GNU_IFUNC)
   8301  1.1  christos 		ifunc = &h->plt.plist;
   8302  1.1  christos 	    }
   8303  1.6  christos 	  else if (local_got_offsets != NULL
   8304  1.1  christos 		   && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
   8305  1.1  christos 	    {
   8306  1.1  christos 	      struct plt_entry **local_plt;
   8307  1.1  christos 
   8308  1.1  christos 	      local_plt = (struct plt_entry **) (local_got_offsets
   8309  1.1  christos 						 + symtab_hdr->sh_info);
   8310  1.1  christos 	      ifunc = local_plt + r_symndx;
   8311  1.1  christos 	    }
   8312  1.1  christos 
   8313  1.1  christos 	  ent = NULL;
   8314  1.1  christos 	  if (ifunc != NULL
   8315  1.1  christos 	      && (!bfd_link_pic (info)
   8316  1.1  christos 		  || is_branch_reloc (r_type)))
   8317  1.1  christos 	    {
   8318  1.1  christos 	      addend = 0;
   8319  1.1  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info))
   8320  1.1  christos 		addend = rel->r_addend;
   8321  1.1  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   8322  1.1  christos 	    }
   8323  1.1  christos 	  if (ent != NULL)
   8324  1.1  christos 	    {
   8325  1.1  christos 	      if (h == NULL && (ent->plt.offset & 1) == 0)
   8326  1.1  christos 		{
   8327  1.1  christos 		  Elf_Internal_Rela rela;
   8328  1.1  christos 		  bfd_byte *loc;
   8329  1.1  christos 
   8330  1.1  christos 		  rela.r_offset = (htab->iplt->output_section->vma
   8331  1.1  christos 				   + htab->iplt->output_offset
   8332  1.1  christos 				   + ent->plt.offset);
   8333  1.1  christos 		  rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8334  1.1  christos 		  rela.r_addend = relocation;
   8335  1.1  christos 		  loc = htab->reliplt->contents;
   8336  1.1  christos 		  loc += (htab->reliplt->reloc_count++
   8337  1.3  christos 			  * sizeof (Elf32_External_Rela));
   8338  1.3  christos 		  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   8339  1.1  christos 
   8340  1.1  christos 		  ent->plt.offset |= 1;
   8341  1.1  christos 		}
   8342  1.1  christos 	      if (h == NULL && (ent->glink_offset & 1) == 0)
   8343  1.1  christos 		{
   8344  1.1  christos 		  unsigned char *p = ((unsigned char *) htab->glink->contents
   8345  1.1  christos 				      + ent->glink_offset);
   8346  1.1  christos 		  write_glink_stub (ent, htab->iplt, p, info);
   8347  1.1  christos 		  ent->glink_offset |= 1;
   8348  1.1  christos 		}
   8349  1.1  christos 
   8350  1.1  christos 	      unresolved_reloc = FALSE;
   8351  1.1  christos 	      if (htab->plt_type == PLT_NEW
   8352  1.1  christos 		  || !htab->elf.dynamic_sections_created
   8353  1.1  christos 		  || h == NULL
   8354  1.1  christos 		  || h->dynindx == -1)
   8355  1.1  christos 		relocation = (htab->glink->output_section->vma
   8356  1.1  christos 			      + htab->glink->output_offset
   8357  1.1  christos 			      + (ent->glink_offset & ~1));
   8358  1.1  christos 	      else
   8359  1.1  christos 		relocation = (htab->plt->output_section->vma
   8360  1.1  christos 			      + htab->plt->output_offset
   8361  1.1  christos 			      + ent->plt.offset);
   8362  1.1  christos 	    }
   8363  1.6  christos 	}
   8364  1.1  christos 
   8365  1.1  christos       addend = rel->r_addend;
   8366  1.1  christos       tls_type = 0;
   8367  1.1  christos       howto = NULL;
   8368  1.1  christos       if (r_type < R_PPC_max)
   8369  1.1  christos 	howto = ppc_elf_howto_table[r_type];
   8370  1.1  christos       switch (r_type)
   8371  1.1  christos 	{
   8372  1.6  christos 	default:
   8373  1.1  christos 	  info->callbacks->einfo
   8374  1.1  christos 	    (_("%P: %B: unknown relocation type %d for symbol %s\n"),
   8375  1.1  christos 	     input_bfd, (int) r_type, sym_name);
   8376  1.1  christos 
   8377  1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   8378  1.1  christos 	  ret = FALSE;
   8379  1.1  christos 	  goto copy_reloc;
   8380  1.1  christos 
   8381  1.1  christos 	case R_PPC_NONE:
   8382  1.1  christos 	case R_PPC_TLS:
   8383  1.1  christos 	case R_PPC_TLSGD:
   8384  1.1  christos 	case R_PPC_TLSLD:
   8385  1.1  christos 	case R_PPC_EMB_MRKREF:
   8386  1.1  christos 	case R_PPC_GNU_VTINHERIT:
   8387  1.1  christos 	case R_PPC_GNU_VTENTRY:
   8388  1.1  christos 	  goto copy_reloc;
   8389  1.1  christos 
   8390  1.1  christos 	  /* GOT16 relocations.  Like an ADDR16 using the symbol's
   8391  1.1  christos 	     address in the GOT as relocation value instead of the
   8392  1.1  christos 	     symbol's value itself.  Also, create a GOT entry for the
   8393  1.1  christos 	     symbol and put the symbol value there.  */
   8394  1.1  christos 	case R_PPC_GOT_TLSGD16:
   8395  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   8396  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   8397  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   8398  1.1  christos 	  tls_type = TLS_TLS | TLS_GD;
   8399  1.1  christos 	  goto dogot;
   8400  1.1  christos 
   8401  1.1  christos 	case R_PPC_GOT_TLSLD16:
   8402  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   8403  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   8404  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   8405  1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   8406  1.1  christos 	  goto dogot;
   8407  1.1  christos 
   8408  1.1  christos 	case R_PPC_GOT_TPREL16:
   8409  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   8410  1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   8411  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   8412  1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   8413  1.1  christos 	  goto dogot;
   8414  1.1  christos 
   8415  1.1  christos 	case R_PPC_GOT_DTPREL16:
   8416  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   8417  1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   8418  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   8419  1.1  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   8420  1.1  christos 	  goto dogot;
   8421  1.1  christos 
   8422  1.1  christos 	case R_PPC_GOT16:
   8423  1.1  christos 	case R_PPC_GOT16_LO:
   8424  1.1  christos 	case R_PPC_GOT16_HI:
   8425  1.1  christos 	case R_PPC_GOT16_HA:
   8426  1.1  christos 	  tls_mask = 0;
   8427  1.1  christos 	dogot:
   8428  1.1  christos 	  {
   8429  1.1  christos 	    /* Relocation is to the entry for this symbol in the global
   8430  1.1  christos 	       offset table.  */
   8431  1.6  christos 	    bfd_vma off;
   8432  1.6  christos 	    bfd_vma *offp;
   8433  1.1  christos 	    unsigned long indx;
   8434  1.1  christos 
   8435  1.1  christos 	    if (htab->got == NULL)
   8436  1.1  christos 	      abort ();
   8437  1.1  christos 
   8438  1.1  christos 	    indx = 0;
   8439  1.1  christos 	    if (tls_type == (TLS_TLS | TLS_LD)
   8440  1.1  christos 		&& (h == NULL
   8441  1.1  christos 		    || !h->def_dynamic))
   8442  1.1  christos 	      offp = &htab->tlsld_got.offset;
   8443  1.1  christos 	    else if (h != NULL)
   8444  1.1  christos 	      {
   8445  1.1  christos 		bfd_boolean dyn;
   8446  1.1  christos 		dyn = htab->elf.dynamic_sections_created;
   8447  1.1  christos 		if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
   8448  1.1  christos 		    || (bfd_link_pic (info)
   8449  1.1  christos 			&& SYMBOL_REFERENCES_LOCAL (info, h)))
   8450  1.1  christos 		  /* This is actually a static link, or it is a
   8451  1.1  christos 		     -Bsymbolic link and the symbol is defined
   8452  1.1  christos 		     locally, or the symbol was forced to be local
   8453  1.1  christos 		     because of a version file.  */
   8454  1.1  christos 		  ;
   8455  1.1  christos 		else
   8456  1.1  christos 		  {
   8457  1.1  christos 		    BFD_ASSERT (h->dynindx != -1);
   8458  1.1  christos 		    indx = h->dynindx;
   8459  1.1  christos 		    unresolved_reloc = FALSE;
   8460  1.1  christos 		  }
   8461  1.1  christos 		offp = &h->got.offset;
   8462  1.1  christos 	      }
   8463  1.1  christos 	    else
   8464  1.1  christos 	      {
   8465  1.1  christos 		if (local_got_offsets == NULL)
   8466  1.1  christos 		  abort ();
   8467  1.1  christos 		offp = &local_got_offsets[r_symndx];
   8468  1.1  christos 	      }
   8469  1.1  christos 
   8470  1.1  christos 	    /* The offset must always be a multiple of 4.  We use the
   8471  1.1  christos 	       least significant bit to record whether we have already
   8472  1.1  christos 	       processed this entry.  */
   8473  1.1  christos 	    off = *offp;
   8474  1.1  christos 	    if ((off & 1) != 0)
   8475  1.1  christos 	      off &= ~1;
   8476  1.1  christos 	    else
   8477  1.1  christos 	      {
   8478  1.1  christos 		unsigned int tls_m = (tls_mask
   8479  1.1  christos 				      & (TLS_LD | TLS_GD | TLS_DTPREL
   8480  1.1  christos 					 | TLS_TPREL | TLS_TPRELGD));
   8481  1.1  christos 
   8482  1.1  christos 		if (offp == &htab->tlsld_got.offset)
   8483  1.1  christos 		  tls_m = TLS_LD;
   8484  1.1  christos 		else if (h == NULL
   8485  1.1  christos 			 || !h->def_dynamic)
   8486  1.1  christos 		  tls_m &= ~TLS_LD;
   8487  1.1  christos 
   8488  1.1  christos 		/* We might have multiple got entries for this sym.
   8489  1.1  christos 		   Initialize them all.  */
   8490  1.1  christos 		do
   8491  1.1  christos 		  {
   8492  1.1  christos 		    int tls_ty = 0;
   8493  1.1  christos 
   8494  1.1  christos 		    if ((tls_m & TLS_LD) != 0)
   8495  1.1  christos 		      {
   8496  1.1  christos 			tls_ty = TLS_TLS | TLS_LD;
   8497  1.1  christos 			tls_m &= ~TLS_LD;
   8498  1.1  christos 		      }
   8499  1.1  christos 		    else if ((tls_m & TLS_GD) != 0)
   8500  1.6  christos 		      {
   8501  1.1  christos 			tls_ty = TLS_TLS | TLS_GD;
   8502  1.1  christos 			tls_m &= ~TLS_GD;
   8503  1.1  christos 		      }
   8504  1.1  christos 		    else if ((tls_m & TLS_DTPREL) != 0)
   8505  1.1  christos 		      {
   8506  1.1  christos 			tls_ty = TLS_TLS | TLS_DTPREL;
   8507  1.1  christos 			tls_m &= ~TLS_DTPREL;
   8508  1.1  christos 		      }
   8509  1.1  christos 		    else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
   8510  1.1  christos 		      {
   8511  1.1  christos 			tls_ty = TLS_TLS | TLS_TPREL;
   8512  1.1  christos 			tls_m = 0;
   8513  1.1  christos 		      }
   8514  1.1  christos 
   8515  1.1  christos 		    /* Generate relocs for the dynamic linker.  */
   8516  1.1  christos 		    if ((bfd_link_pic (info) || indx != 0)
   8517  1.1  christos 			&& (offp == &htab->tlsld_got.offset
   8518  1.1  christos 			    || h == NULL
   8519  1.1  christos 			    || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
   8520  1.1  christos 			    || h->root.type != bfd_link_hash_undefweak))
   8521  1.1  christos 		      {
   8522  1.1  christos 			asection *rsec = htab->relgot;
   8523  1.1  christos 			bfd_byte * loc;
   8524  1.1  christos 
   8525  1.1  christos 			if (ifunc != NULL)
   8526  1.1  christos 			  rsec = htab->reliplt;
   8527  1.1  christos 			outrel.r_offset = (htab->got->output_section->vma
   8528  1.1  christos 					   + htab->got->output_offset
   8529  1.1  christos 					   + off);
   8530  1.1  christos 			outrel.r_addend = 0;
   8531  1.1  christos 			if (tls_ty & (TLS_LD | TLS_GD))
   8532  1.1  christos 			  {
   8533  1.1  christos 			    outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
   8534  1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_GD))
   8535  1.1  christos 			      {
   8536  1.1  christos 				loc = rsec->contents;
   8537  1.1  christos 				loc += (rsec->reloc_count++
   8538  1.1  christos 					* sizeof (Elf32_External_Rela));
   8539  1.1  christos 				bfd_elf32_swap_reloca_out (output_bfd,
   8540  1.1  christos 							   &outrel, loc);
   8541  1.1  christos 				outrel.r_offset += 4;
   8542  1.1  christos 				outrel.r_info
   8543  1.1  christos 				  = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   8544  1.5  christos 			      }
   8545  1.5  christos 			  }
   8546  1.5  christos 			else if (tls_ty == (TLS_TLS | TLS_DTPREL))
   8547  1.5  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   8548  1.5  christos 			else if (tls_ty == (TLS_TLS | TLS_TPREL))
   8549  1.5  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
   8550  1.1  christos 			else if (indx != 0)
   8551  1.1  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
   8552  1.1  christos 			else if (ifunc != NULL)
   8553  1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8554  1.1  christos 			else
   8555  1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   8556  1.1  christos 			if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
   8557  1.1  christos 			  {
   8558  1.1  christos 			    outrel.r_addend += relocation;
   8559  1.1  christos 			    if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
   8560  1.1  christos 			      {
   8561  1.1  christos 				if (htab->elf.tls_sec == NULL)
   8562  1.1  christos 				  outrel.r_addend = 0;
   8563  1.1  christos 				else
   8564  1.1  christos 				  outrel.r_addend -= htab->elf.tls_sec->vma;
   8565  1.1  christos 			      }
   8566  1.1  christos 			  }
   8567  1.5  christos 			loc = rsec->contents;
   8568  1.5  christos 			loc += (rsec->reloc_count++
   8569  1.5  christos 				* sizeof (Elf32_External_Rela));
   8570  1.5  christos 			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   8571  1.5  christos 		      }
   8572  1.5  christos 
   8573  1.5  christos 		    /* Init the .got section contents if we're not
   8574  1.5  christos 		       emitting a reloc.  */
   8575  1.1  christos 		    else
   8576  1.1  christos 		      {
   8577  1.1  christos 			bfd_vma value = relocation;
   8578  1.1  christos 
   8579  1.1  christos 			if (tls_ty == (TLS_TLS | TLS_LD))
   8580  1.1  christos 			  value = 1;
   8581  1.1  christos 			else if (tls_ty != 0)
   8582  1.1  christos 			  {
   8583  1.1  christos 			    if (htab->elf.tls_sec == NULL)
   8584  1.1  christos 			      value = 0;
   8585  1.1  christos 			    else
   8586  1.1  christos 			      {
   8587  1.1  christos 				value -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8588  1.1  christos 				if (tls_ty == (TLS_TLS | TLS_TPREL))
   8589  1.1  christos 				  value += DTP_OFFSET - TP_OFFSET;
   8590  1.1  christos 			      }
   8591  1.1  christos 
   8592  1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_GD))
   8593  1.1  christos 			      {
   8594  1.1  christos 				bfd_put_32 (output_bfd, value,
   8595  1.1  christos 					    htab->got->contents + off + 4);
   8596  1.1  christos 				value = 1;
   8597  1.1  christos 			      }
   8598  1.1  christos 			  }
   8599  1.1  christos 			bfd_put_32 (output_bfd, value,
   8600  1.1  christos 				    htab->got->contents + off);
   8601  1.1  christos 		      }
   8602  1.1  christos 
   8603  1.1  christos 		    off += 4;
   8604  1.1  christos 		    if (tls_ty & (TLS_LD | TLS_GD))
   8605  1.1  christos 		      off += 4;
   8606  1.1  christos 		  }
   8607  1.1  christos 		while (tls_m != 0);
   8608  1.1  christos 
   8609  1.1  christos 		off = *offp;
   8610  1.1  christos 		*offp = off | 1;
   8611  1.1  christos 	      }
   8612  1.1  christos 
   8613  1.1  christos 	    if (off >= (bfd_vma) -2)
   8614  1.1  christos 	      abort ();
   8615  1.1  christos 
   8616  1.1  christos 	    if ((tls_type & TLS_TLS) != 0)
   8617  1.1  christos 	      {
   8618  1.1  christos 		if (tls_type != (TLS_TLS | TLS_LD))
   8619  1.1  christos 		  {
   8620  1.1  christos 		    if ((tls_mask & TLS_LD) != 0
   8621  1.5  christos 			&& !(h == NULL
   8622  1.5  christos 			     || !h->def_dynamic))
   8623  1.6  christos 		      off += 8;
   8624  1.5  christos 		    if (tls_type != (TLS_TLS | TLS_GD))
   8625  1.1  christos 		      {
   8626  1.1  christos 			if ((tls_mask & TLS_GD) != 0)
   8627  1.1  christos 			  off += 8;
   8628  1.1  christos 			if (tls_type != (TLS_TLS | TLS_DTPREL))
   8629  1.1  christos 			  {
   8630  1.1  christos 			    if ((tls_mask & TLS_DTPREL) != 0)
   8631  1.1  christos 			      off += 4;
   8632  1.1  christos 			  }
   8633  1.1  christos 		      }
   8634  1.1  christos 		  }
   8635  1.1  christos 	      }
   8636  1.1  christos 
   8637  1.1  christos 	    /* If here for a picfixup, we're done.  */
   8638  1.1  christos 	    if (r_type != ELF32_R_TYPE (rel->r_info))
   8639  1.1  christos 	      goto copy_reloc;
   8640  1.1  christos 
   8641  1.3  christos 	    relocation = (htab->got->output_section->vma
   8642  1.1  christos 			  + htab->got->output_offset
   8643  1.3  christos 			  + off
   8644  1.1  christos 			  - SYM_VAL (htab->elf.hgot));
   8645  1.1  christos 
   8646  1.1  christos 	    /* Addends on got relocations don't make much sense.
   8647  1.1  christos 	       x+off@got is actually x@got+off, and since the got is
   8648  1.1  christos 	       generated by a hash table traversal, the value in the
   8649  1.6  christos 	       got at entry m+n bears little relation to the entry m.  */
   8650  1.6  christos 	    if (addend != 0)
   8651  1.6  christos 	      info->callbacks->einfo
   8652  1.6  christos 		(_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
   8653  1.6  christos 		 input_bfd, input_section, rel->r_offset,
   8654  1.6  christos 		 howto->name,
   8655  1.6  christos 		 sym_name);
   8656  1.1  christos 	  }
   8657  1.1  christos 	  break;
   8658  1.1  christos 
   8659  1.1  christos 	  /* Relocations that need no special processing.  */
   8660  1.1  christos 	case R_PPC_LOCAL24PC:
   8661  1.1  christos 	  /* It makes no sense to point a local relocation
   8662  1.1  christos 	     at a symbol not in this object.  */
   8663  1.5  christos 	  if (unresolved_reloc)
   8664  1.5  christos 	    {
   8665  1.1  christos 	      (*info->callbacks->undefined_symbol) (info,
   8666  1.1  christos 						    h->root.root.string,
   8667  1.1  christos 						    input_bfd,
   8668  1.1  christos 						    input_section,
   8669  1.1  christos 						    rel->r_offset,
   8670  1.1  christos 						    TRUE);
   8671  1.1  christos 	      goto copy_reloc;
   8672  1.1  christos 	    }
   8673  1.1  christos 	  break;
   8674  1.1  christos 
   8675  1.1  christos 	case R_PPC_DTPREL16:
   8676  1.1  christos 	case R_PPC_DTPREL16_LO:
   8677  1.1  christos 	case R_PPC_DTPREL16_HI:
   8678  1.1  christos 	case R_PPC_DTPREL16_HA:
   8679  1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8680  1.1  christos 	    addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8681  1.1  christos 	  break;
   8682  1.1  christos 
   8683  1.1  christos 	  /* Relocations that may need to be propagated if this is a shared
   8684  1.1  christos 	     object.  */
   8685  1.1  christos 	case R_PPC_TPREL16:
   8686  1.1  christos 	case R_PPC_TPREL16_LO:
   8687  1.1  christos 	case R_PPC_TPREL16_HI:
   8688  1.5  christos 	case R_PPC_TPREL16_HA:
   8689  1.5  christos 	  if (h != NULL
   8690  1.1  christos 	      && h->root.type == bfd_link_hash_undefweak
   8691  1.1  christos 	      && h->dynindx == -1)
   8692  1.1  christos 	    {
   8693  1.1  christos 	      /* Make this relocation against an undefined weak symbol
   8694  1.1  christos 		 resolve to zero.  This is really just a tweak, since
   8695  1.1  christos 		 code using weak externs ought to check that they are
   8696  1.5  christos 		 defined before using them.  */
   8697  1.5  christos 	      bfd_byte *p = contents + rel->r_offset - d_offset;
   8698  1.1  christos 	      unsigned int insn = bfd_get_32 (output_bfd, p);
   8699  1.1  christos 	      insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
   8700  1.1  christos 	      if (insn != 0)
   8701  1.5  christos 		bfd_put_32 (output_bfd, insn, p);
   8702  1.5  christos 	      break;
   8703  1.1  christos 	    }
   8704  1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8705  1.1  christos 	    addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   8706  1.1  christos 	  /* The TPREL16 relocs shouldn't really be used in shared
   8707  1.1  christos 	     libs as they will result in DT_TEXTREL being set, but
   8708  1.1  christos 	     support them anyway.  */
   8709  1.1  christos 	  goto dodyn;
   8710  1.1  christos 
   8711  1.1  christos 	case R_PPC_TPREL32:
   8712  1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8713  1.1  christos 	    addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   8714  1.6  christos 	  goto dodyn;
   8715  1.1  christos 
   8716  1.1  christos 	case R_PPC_DTPREL32:
   8717  1.1  christos 	  if (htab->elf.tls_sec != NULL)
   8718  1.1  christos 	    addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8719  1.1  christos 	  goto dodyn;
   8720  1.1  christos 
   8721  1.1  christos 	case R_PPC_DTPMOD32:
   8722  1.1  christos 	  relocation = 1;
   8723  1.1  christos 	  addend = 0;
   8724  1.1  christos 	  goto dodyn;
   8725  1.1  christos 
   8726  1.1  christos 	case R_PPC_REL16:
   8727  1.1  christos 	case R_PPC_REL16_LO:
   8728  1.1  christos 	case R_PPC_REL16_HI:
   8729  1.1  christos 	case R_PPC_REL16_HA:
   8730  1.1  christos 	case R_PPC_REL16DX_HA:
   8731  1.1  christos 	  break;
   8732  1.1  christos 
   8733  1.1  christos 	case R_PPC_REL32:
   8734  1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   8735  1.1  christos 	    break;
   8736  1.1  christos 	  /* fall through */
   8737  1.1  christos 
   8738  1.1  christos 	case R_PPC_ADDR32:
   8739  1.1  christos 	case R_PPC_ADDR16:
   8740  1.1  christos 	case R_PPC_ADDR16_LO:
   8741  1.1  christos 	case R_PPC_ADDR16_HI:
   8742  1.1  christos 	case R_PPC_ADDR16_HA:
   8743  1.1  christos 	case R_PPC_UADDR32:
   8744  1.1  christos 	case R_PPC_UADDR16:
   8745  1.1  christos 	  goto dodyn;
   8746  1.1  christos 
   8747  1.1  christos 	case R_PPC_VLE_REL8:
   8748  1.1  christos 	case R_PPC_VLE_REL15:
   8749  1.6  christos 	case R_PPC_VLE_REL24:
   8750  1.1  christos 	case R_PPC_REL24:
   8751  1.1  christos 	case R_PPC_REL14:
   8752  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   8753  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   8754  1.1  christos 	  /* If these relocations are not to a named symbol, they can be
   8755  1.1  christos 	     handled right here, no need to bother the dynamic linker.  */
   8756  1.1  christos 	  if (SYMBOL_CALLS_LOCAL (info, h)
   8757  1.1  christos 	      || h == htab->elf.hgot)
   8758  1.6  christos 	    break;
   8759  1.1  christos 	  /* fall through */
   8760  1.1  christos 
   8761  1.1  christos 	case R_PPC_ADDR24:
   8762  1.1  christos 	case R_PPC_ADDR14:
   8763  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   8764  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   8765  1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   8766  1.1  christos 	    break;
   8767  1.1  christos 	  /* fall through */
   8768  1.6  christos 
   8769  1.1  christos 	dodyn:
   8770  1.1  christos 	  if ((input_section->flags & SEC_ALLOC) == 0
   8771  1.1  christos 	      || is_vxworks_tls)
   8772  1.5  christos 	    break;
   8773  1.5  christos 
   8774  1.5  christos 	  if ((bfd_link_pic (info)
   8775  1.5  christos 	       && !(h != NULL
   8776  1.5  christos 		    && ((h->root.type == bfd_link_hash_undefined
   8777  1.1  christos 			 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
   8778  1.1  christos 			     || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
   8779  1.1  christos 			|| (h->root.type == bfd_link_hash_undefweak
   8780  1.1  christos 			    && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
   8781  1.1  christos 	       && (must_be_dyn_reloc (info, r_type)
   8782  1.1  christos 		   || !SYMBOL_CALLS_LOCAL (info, h)))
   8783  1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   8784  1.1  christos 		  && !bfd_link_pic (info)
   8785  1.1  christos 		  && h != NULL
   8786  1.1  christos 		  && h->dynindx != -1
   8787  1.1  christos 		  && !h->non_got_ref
   8788  1.1  christos 		  && !h->def_regular
   8789  1.1  christos 		  && !(h->protected_def
   8790  1.1  christos 		       && ppc_elf_hash_entry (h)->has_addr16_ha
   8791  1.1  christos 		       && ppc_elf_hash_entry (h)->has_addr16_lo
   8792  1.1  christos 		       && htab->params->pic_fixup > 0)))
   8793  1.1  christos 	    {
   8794  1.1  christos 	      int skip;
   8795  1.1  christos 	      bfd_byte *loc;
   8796  1.1  christos 	      asection *sreloc;
   8797  1.1  christos #ifdef DEBUG
   8798  1.1  christos 	      fprintf (stderr, "ppc_elf_relocate_section needs to "
   8799  1.1  christos 		       "create relocation for %s\n",
   8800  1.1  christos 		       (h && h->root.root.string
   8801  1.1  christos 			? h->root.root.string : "<unknown>"));
   8802  1.1  christos #endif
   8803  1.1  christos 
   8804  1.1  christos 	      /* When generating a shared object, these relocations
   8805  1.1  christos 		 are copied into the output file to be resolved at run
   8806  1.1  christos 		 time.  */
   8807  1.1  christos 	      sreloc = elf_section_data (input_section)->sreloc;
   8808  1.1  christos 	      if (ifunc)
   8809  1.1  christos 		sreloc = htab->reliplt;
   8810  1.1  christos 	      if (sreloc == NULL)
   8811  1.1  christos 		return FALSE;
   8812  1.1  christos 
   8813  1.1  christos 	      skip = 0;
   8814  1.1  christos 	      outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
   8815  1.1  christos 							 input_section,
   8816  1.1  christos 							 rel->r_offset);
   8817  1.1  christos 	      if (outrel.r_offset == (bfd_vma) -1
   8818  1.1  christos 		  || outrel.r_offset == (bfd_vma) -2)
   8819  1.1  christos 		skip = (int) outrel.r_offset;
   8820  1.1  christos 	      outrel.r_offset += (input_section->output_section->vma
   8821  1.1  christos 				  + input_section->output_offset);
   8822  1.1  christos 
   8823  1.1  christos 	      if (skip)
   8824  1.1  christos 		memset (&outrel, 0, sizeof outrel);
   8825  1.1  christos 	      else if ((h != NULL
   8826  1.1  christos 			&& (h->root.type == bfd_link_hash_undefined
   8827  1.1  christos 			    || h->root.type == bfd_link_hash_undefweak))
   8828  1.1  christos 		       || !SYMBOL_REFERENCES_LOCAL (info, h))
   8829  1.1  christos 		{
   8830  1.1  christos 		  BFD_ASSERT (h->dynindx != -1);
   8831  1.1  christos 		  unresolved_reloc = FALSE;
   8832  1.1  christos 		  outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
   8833  1.1  christos 		  outrel.r_addend = rel->r_addend;
   8834  1.1  christos 		}
   8835  1.1  christos 	      else
   8836  1.1  christos 		{
   8837  1.1  christos 		  outrel.r_addend = relocation + rel->r_addend;
   8838  1.1  christos 
   8839  1.1  christos 		  if (r_type != R_PPC_ADDR32)
   8840  1.1  christos 		    {
   8841  1.1  christos 		      long indx = 0;
   8842  1.1  christos 
   8843  1.1  christos 		      if (ifunc != NULL)
   8844  1.1  christos 			{
   8845  1.1  christos 			  /* If we get here when building a static
   8846  1.1  christos 			     executable, then the libc startup function
   8847  1.1  christos 			     responsible for applying indirect function
   8848  1.1  christos 			     relocations is going to complain about
   8849  1.1  christos 			     the reloc type.
   8850  1.1  christos 			     If we get here when building a dynamic
   8851  1.1  christos 			     executable, it will be because we have
   8852  1.1  christos 			     a text relocation.  The dynamic loader
   8853  1.1  christos 			     will set the text segment writable and
   8854  1.1  christos 			     non-executable to apply text relocations.
   8855  1.1  christos 			     So we'll segfault when trying to run the
   8856  1.1  christos 			     indirection function to resolve the reloc.  */
   8857  1.1  christos 			  info->callbacks->einfo
   8858  1.1  christos 			    (_("%P: %H: relocation %s for indirect "
   8859  1.1  christos 			       "function %s unsupported\n"),
   8860  1.1  christos 			     input_bfd, input_section, rel->r_offset,
   8861  1.1  christos 			     howto->name,
   8862  1.1  christos 			     sym_name);
   8863  1.1  christos 			  ret = FALSE;
   8864  1.1  christos 			}
   8865  1.1  christos 		      else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
   8866  1.1  christos 			;
   8867  1.1  christos 		      else if (sec == NULL || sec->owner == NULL)
   8868  1.1  christos 			{
   8869  1.1  christos 			  bfd_set_error (bfd_error_bad_value);
   8870  1.1  christos 			  ret = FALSE;
   8871  1.1  christos 			}
   8872  1.1  christos 		      else
   8873  1.1  christos 			{
   8874  1.1  christos 			  asection *osec;
   8875  1.1  christos 
   8876  1.1  christos 			  /* We are turning this relocation into one
   8877  1.1  christos 			     against a section symbol.  It would be
   8878  1.1  christos 			     proper to subtract the symbol's value,
   8879  1.1  christos 			     osec->vma, from the emitted reloc addend,
   8880  1.1  christos 			     but ld.so expects buggy relocs.
   8881  1.1  christos 			     FIXME: Why not always use a zero index?  */
   8882  1.1  christos 			  osec = sec->output_section;
   8883  1.1  christos 			  indx = elf_section_data (osec)->dynindx;
   8884  1.1  christos 			  if (indx == 0)
   8885  1.1  christos 			    {
   8886  1.1  christos 			      osec = htab->elf.text_index_section;
   8887  1.1  christos 			      indx = elf_section_data (osec)->dynindx;
   8888  1.1  christos 			    }
   8889  1.1  christos 			  BFD_ASSERT (indx != 0);
   8890  1.1  christos #ifdef DEBUG
   8891  1.1  christos 			  if (indx == 0)
   8892  1.1  christos 			    printf ("indx=%ld section=%s flags=%08x name=%s\n",
   8893  1.1  christos 				    indx, osec->name, osec->flags,
   8894  1.1  christos 				    h->root.root.string);
   8895  1.6  christos #endif
   8896  1.1  christos 			}
   8897  1.1  christos 
   8898  1.1  christos 		      outrel.r_info = ELF32_R_INFO (indx, r_type);
   8899  1.1  christos 		    }
   8900  1.1  christos 		  else if (ifunc != NULL)
   8901  1.1  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8902  1.1  christos 		  else
   8903  1.1  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   8904  1.1  christos 		}
   8905  1.1  christos 
   8906  1.1  christos 	      loc = sreloc->contents;
   8907  1.1  christos 	      loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
   8908  1.1  christos 	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   8909  1.1  christos 
   8910  1.1  christos 	      if (skip == -1)
   8911  1.1  christos 		goto copy_reloc;
   8912  1.1  christos 
   8913  1.1  christos 	      /* This reloc will be computed at runtime.  We clear the memory
   8914  1.1  christos 		 so that it contains predictable value.  */
   8915  1.1  christos 	      if (! skip
   8916  1.1  christos 		  && ((input_section->flags & SEC_ALLOC) != 0
   8917  1.1  christos 		      || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
   8918  1.1  christos 		{
   8919  1.6  christos 		  relocation = howto->pc_relative ? outrel.r_offset : 0;
   8920  1.1  christos 		  addend = 0;
   8921  1.1  christos 		  break;
   8922  1.1  christos 		}
   8923  1.1  christos 	    }
   8924  1.1  christos 	  break;
   8925  1.1  christos 
   8926  1.1  christos 	case R_PPC_RELAX_PLT:
   8927  1.1  christos 	case R_PPC_RELAX_PLTREL24:
   8928  1.1  christos 	  if (h != NULL)
   8929  1.1  christos 	    {
   8930  1.1  christos 	      struct plt_entry *ent;
   8931  1.1  christos 	      bfd_vma got2_addend = 0;
   8932  1.1  christos 
   8933  1.1  christos 	      if (r_type == R_PPC_RELAX_PLTREL24)
   8934  1.1  christos 		{
   8935  1.1  christos 		  if (bfd_link_pic (info))
   8936  1.1  christos 		    got2_addend = addend;
   8937  1.3  christos 		  addend = 0;
   8938  1.3  christos 		}
   8939  1.3  christos 	      ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
   8940  1.3  christos 	      if (htab->plt_type == PLT_NEW)
   8941  1.3  christos 		relocation = (htab->glink->output_section->vma
   8942  1.6  christos 			      + htab->glink->output_offset
   8943  1.3  christos 			      + ent->glink_offset);
   8944  1.3  christos 	      else
   8945  1.3  christos 		relocation = (htab->plt->output_section->vma
   8946  1.3  christos 			      + htab->plt->output_offset
   8947  1.3  christos 			      + ent->plt.offset);
   8948  1.3  christos 	    }
   8949  1.3  christos 	  /* Fall thru */
   8950  1.3  christos 
   8951  1.3  christos 	case R_PPC_RELAX:
   8952  1.3  christos 	  {
   8953  1.3  christos 	    const int *stub;
   8954  1.3  christos 	    size_t size;
   8955  1.3  christos 	    size_t insn_offset = rel->r_offset;
   8956  1.3  christos 	    unsigned int insn;
   8957  1.3  christos 
   8958  1.3  christos 	    if (bfd_link_pic (info))
   8959  1.1  christos 	      {
   8960  1.1  christos 		relocation -= (input_section->output_section->vma
   8961  1.6  christos 			       + input_section->output_offset
   8962  1.3  christos 			       + rel->r_offset - 4);
   8963  1.1  christos 		stub = shared_stub_entry;
   8964  1.3  christos 		bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12);
   8965  1.3  christos 		bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8);
   8966  1.3  christos 		bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4);
   8967  1.3  christos 		stub += 3;
   8968  1.3  christos 		size = ARRAY_SIZE (shared_stub_entry) - 3;
   8969  1.3  christos 	      }
   8970  1.3  christos 	    else
   8971  1.3  christos 	      {
   8972  1.3  christos 		stub = stub_entry;
   8973  1.3  christos 		size = ARRAY_SIZE (stub_entry);
   8974  1.3  christos 	      }
   8975  1.3  christos 
   8976  1.3  christos 	    relocation += addend;
   8977  1.3  christos 	    if (bfd_link_relocatable (info))
   8978  1.3  christos 	      relocation = 0;
   8979  1.3  christos 
   8980  1.3  christos 	    /* First insn is HA, second is LO.  */
   8981  1.3  christos 	    insn = *stub++;
   8982  1.3  christos 	    insn |= ((relocation + 0x8000) >> 16) & 0xffff;
   8983  1.1  christos 	    bfd_put_32 (output_bfd, insn, contents + insn_offset);
   8984  1.1  christos 	    insn_offset += 4;
   8985  1.1  christos 
   8986  1.1  christos 	    insn = *stub++;
   8987  1.1  christos 	    insn |= relocation & 0xffff;
   8988  1.6  christos 	    bfd_put_32 (output_bfd, insn, contents + insn_offset);
   8989  1.6  christos 	    insn_offset += 4;
   8990  1.6  christos 	    size -= 2;
   8991  1.6  christos 
   8992  1.6  christos 	    while (size != 0)
   8993  1.6  christos 	      {
   8994  1.6  christos 		insn = *stub++;
   8995  1.1  christos 		--size;
   8996  1.1  christos 		bfd_put_32 (output_bfd, insn, contents + insn_offset);
   8997  1.1  christos 		insn_offset += 4;
   8998  1.1  christos 	      }
   8999  1.1  christos 
   9000  1.1  christos 	    /* Rewrite the reloc and convert one of the trailing nop
   9001  1.1  christos 	       relocs to describe this relocation.  */
   9002  1.1  christos 	    BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
   9003  1.1  christos 	    /* The relocs are at the bottom 2 bytes */
   9004  1.1  christos 	    wrel->r_offset = rel->r_offset + d_offset;
   9005  1.1  christos 	    wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
   9006  1.1  christos 	    wrel->r_addend = rel->r_addend;
   9007  1.1  christos 	    memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
   9008  1.1  christos 	    wrel++, rel++;
   9009  1.1  christos 	    wrel->r_offset += 4;
   9010  1.1  christos 	    wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
   9011  1.1  christos 	  }
   9012  1.1  christos 	  continue;
   9013  1.1  christos 
   9014  1.1  christos 	  /* Indirect .sdata relocation.  */
   9015  1.1  christos 	case R_PPC_EMB_SDAI16:
   9016  1.1  christos 	  BFD_ASSERT (htab->sdata[0].section != NULL);
   9017  1.1  christos 	  if (!is_static_defined (htab->sdata[0].sym))
   9018  1.1  christos 	    {
   9019  1.1  christos 	      unresolved_reloc = TRUE;
   9020  1.1  christos 	      break;
   9021  1.1  christos 	    }
   9022  1.1  christos 	  relocation
   9023  1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
   9024  1.1  christos 						 h, relocation, rel);
   9025  1.1  christos 	  addend = 0;
   9026  1.1  christos 	  break;
   9027  1.1  christos 
   9028  1.1  christos 	  /* Indirect .sdata2 relocation.  */
   9029  1.1  christos 	case R_PPC_EMB_SDA2I16:
   9030  1.1  christos 	  BFD_ASSERT (htab->sdata[1].section != NULL);
   9031  1.1  christos 	  if (!is_static_defined (htab->sdata[1].sym))
   9032  1.1  christos 	    {
   9033  1.1  christos 	      unresolved_reloc = TRUE;
   9034  1.1  christos 	      break;
   9035  1.1  christos 	    }
   9036  1.1  christos 	  relocation
   9037  1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
   9038  1.1  christos 						 h, relocation, rel);
   9039  1.1  christos 	  addend = 0;
   9040  1.1  christos 	  break;
   9041  1.1  christos 
   9042  1.1  christos 	  /* Handle the TOC16 reloc.  We want to use the offset within the .got
   9043  1.1  christos 	     section, not the actual VMA.  This is appropriate when generating
   9044  1.1  christos 	     an embedded ELF object, for which the .got section acts like the
   9045  1.1  christos 	     AIX .toc section.  */
   9046  1.1  christos 	case R_PPC_TOC16:			/* phony GOT16 relocations */
   9047  1.6  christos 	  if (sec == NULL || sec->output_section == NULL)
   9048  1.6  christos 	    {
   9049  1.6  christos 	      unresolved_reloc = TRUE;
   9050  1.6  christos 	      break;
   9051  1.1  christos 	    }
   9052  1.1  christos 	  BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
   9053  1.1  christos 			      ".got") == 0
   9054  1.1  christos 		      || strcmp (bfd_get_section_name (sec->owner, sec),
   9055  1.1  christos 				 ".cgot") == 0);
   9056  1.1  christos 
   9057  1.1  christos 	  addend -= sec->output_section->vma + sec->output_offset + 0x8000;
   9058  1.1  christos 	  break;
   9059  1.1  christos 
   9060  1.1  christos 	case R_PPC_PLTREL24:
   9061  1.1  christos 	  if (h != NULL && ifunc == NULL)
   9062  1.1  christos 	    {
   9063  1.1  christos 	      struct plt_entry *ent;
   9064  1.1  christos 
   9065  1.1  christos 	      ent = find_plt_ent (&h->plt.plist, got2,
   9066  1.1  christos 				  bfd_link_pic (info) ? addend : 0);
   9067  1.1  christos 	      if (ent == NULL
   9068  1.1  christos 		  || htab->plt == NULL)
   9069  1.1  christos 		{
   9070  1.1  christos 		  /* We didn't make a PLT entry for this symbol.  This
   9071  1.1  christos 		     happens when statically linking PIC code, or when
   9072  1.1  christos 		     using -Bsymbolic.  */
   9073  1.1  christos 		}
   9074  1.1  christos 	      else
   9075  1.1  christos 		{
   9076  1.1  christos 		  /* Relocation is to the entry for this symbol in the
   9077  1.1  christos 		     procedure linkage table.  */
   9078  1.1  christos 		  unresolved_reloc = FALSE;
   9079  1.1  christos 		  if (htab->plt_type == PLT_NEW)
   9080  1.1  christos 		    relocation = (htab->glink->output_section->vma
   9081  1.1  christos 				  + htab->glink->output_offset
   9082  1.1  christos 				  + ent->glink_offset);
   9083  1.1  christos 		  else
   9084  1.1  christos 		    relocation = (htab->plt->output_section->vma
   9085  1.1  christos 				  + htab->plt->output_offset
   9086  1.1  christos 				  + ent->plt.offset);
   9087  1.1  christos 		}
   9088  1.1  christos 	    }
   9089  1.1  christos 
   9090  1.1  christos 	  /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   9091  1.1  christos 	     addend specifies the GOT pointer offset within .got2.
   9092  1.1  christos 	     Don't apply it to the relocation field.  */
   9093  1.1  christos 	  addend = 0;
   9094  1.1  christos 	  break;
   9095  1.1  christos 
   9096  1.3  christos 	  /* Relocate against _SDA_BASE_.  */
   9097  1.3  christos 	case R_PPC_SDAREL16:
   9098  1.1  christos 	  {
   9099  1.1  christos 	    const char *name;
   9100  1.1  christos 	    struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   9101  1.1  christos 
   9102  1.1  christos 	    if (sec == NULL
   9103  1.1  christos 		|| sec->output_section == NULL
   9104  1.1  christos 		|| !is_static_defined (sda))
   9105  1.1  christos 	      {
   9106  1.1  christos 		unresolved_reloc = TRUE;
   9107  1.1  christos 		break;
   9108  1.1  christos 	      }
   9109  1.1  christos 	    addend -= SYM_VAL (sda);
   9110  1.1  christos 
   9111  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9112  1.1  christos 	    if (!(strcmp (name, ".sdata") == 0
   9113  1.1  christos 		  || strcmp (name, ".sbss") == 0))
   9114  1.1  christos 	      {
   9115  1.1  christos 		info->callbacks->einfo
   9116  1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   9117  1.1  christos 		     "in the wrong output section (%s)\n"),
   9118  1.1  christos 		   input_bfd,
   9119  1.1  christos 		   sym_name,
   9120  1.1  christos 		   howto->name,
   9121  1.1  christos 		   name);
   9122  1.1  christos 	      }
   9123  1.1  christos 	  }
   9124  1.1  christos 	  break;
   9125  1.1  christos 
   9126  1.3  christos 	  /* Relocate against _SDA2_BASE_.  */
   9127  1.3  christos 	case R_PPC_EMB_SDA2REL:
   9128  1.1  christos 	  {
   9129  1.1  christos 	    const char *name;
   9130  1.1  christos 	    struct elf_link_hash_entry *sda = htab->sdata[1].sym;
   9131  1.1  christos 
   9132  1.1  christos 	    if (sec == NULL
   9133  1.1  christos 		|| sec->output_section == NULL
   9134  1.1  christos 		|| !is_static_defined (sda))
   9135  1.1  christos 	      {
   9136  1.1  christos 		unresolved_reloc = TRUE;
   9137  1.1  christos 		break;
   9138  1.1  christos 	      }
   9139  1.1  christos 	    addend -= SYM_VAL (sda);
   9140  1.1  christos 
   9141  1.3  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9142  1.3  christos 	    if (!(strcmp (name, ".sdata2") == 0
   9143  1.3  christos 		  || strcmp (name, ".sbss2") == 0))
   9144  1.6  christos 	      {
   9145  1.1  christos 		info->callbacks->einfo
   9146  1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   9147  1.3  christos 		     "in the wrong output section (%s)\n"),
   9148  1.3  christos 		   input_bfd,
   9149  1.3  christos 		   sym_name,
   9150  1.6  christos 		   howto->name,
   9151  1.1  christos 		   name);
   9152  1.1  christos 	      }
   9153  1.3  christos 	  }
   9154  1.3  christos 	  break;
   9155  1.3  christos 
   9156  1.6  christos 	case R_PPC_VLE_LO16A:
   9157  1.1  christos 	  relocation = relocation + addend;
   9158  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9159  1.3  christos 			       relocation, split16a_type);
   9160  1.3  christos 	  goto copy_reloc;
   9161  1.3  christos 
   9162  1.6  christos 	case R_PPC_VLE_LO16D:
   9163  1.1  christos 	  relocation = relocation + addend;
   9164  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9165  1.3  christos 			       relocation, split16d_type);
   9166  1.3  christos 	  goto copy_reloc;
   9167  1.3  christos 
   9168  1.6  christos 	case R_PPC_VLE_HI16A:
   9169  1.1  christos 	  relocation = (relocation + addend) >> 16;
   9170  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9171  1.3  christos 			       relocation, split16a_type);
   9172  1.3  christos 	  goto copy_reloc;
   9173  1.3  christos 
   9174  1.6  christos 	case R_PPC_VLE_HI16D:
   9175  1.1  christos 	  relocation = (relocation + addend) >> 16;
   9176  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9177  1.1  christos 			       relocation, split16d_type);
   9178  1.1  christos 	  goto copy_reloc;
   9179  1.1  christos 
   9180  1.1  christos 	case R_PPC_VLE_HA16A:
   9181  1.1  christos 	  relocation = (relocation + addend + 0x8000) >> 16;
   9182  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9183  1.1  christos 			       relocation, split16a_type);
   9184  1.3  christos 	  goto copy_reloc;
   9185  1.1  christos 
   9186  1.1  christos 	case R_PPC_VLE_HA16D:
   9187  1.1  christos 	  relocation = (relocation + addend + 0x8000) >> 16;
   9188  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9189  1.1  christos 			       relocation, split16d_type);
   9190  1.1  christos 	  goto copy_reloc;
   9191  1.1  christos 
   9192  1.1  christos 	  /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0.  */
   9193  1.1  christos 	case R_PPC_EMB_SDA21:
   9194  1.3  christos 	case R_PPC_VLE_SDA21:
   9195  1.3  christos 	case R_PPC_EMB_RELSDA:
   9196  1.1  christos 	case R_PPC_VLE_SDA21_LO:
   9197  1.1  christos 	  {
   9198  1.1  christos 	    const char *name;
   9199  1.1  christos 	    int reg;
   9200  1.3  christos 	    unsigned int insn;
   9201  1.3  christos 	    struct elf_link_hash_entry *sda = NULL;
   9202  1.1  christos 
   9203  1.1  christos 	    if (sec == NULL || sec->output_section == NULL)
   9204  1.1  christos 	      {
   9205  1.1  christos 		unresolved_reloc = TRUE;
   9206  1.1  christos 		break;
   9207  1.1  christos 	      }
   9208  1.1  christos 
   9209  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9210  1.1  christos 	    if (strcmp (name, ".sdata") == 0
   9211  1.1  christos 		|| strcmp (name, ".sbss") == 0)
   9212  1.1  christos 	      {
   9213  1.1  christos 		reg = 13;
   9214  1.1  christos 		sda = htab->sdata[0].sym;
   9215  1.1  christos 	      }
   9216  1.1  christos 	    else if (strcmp (name, ".sdata2") == 0
   9217  1.1  christos 		     || strcmp (name, ".sbss2") == 0)
   9218  1.1  christos 	      {
   9219  1.1  christos 		reg = 2;
   9220  1.1  christos 		sda = htab->sdata[1].sym;
   9221  1.1  christos 	      }
   9222  1.1  christos 	    else if (strcmp (name, ".PPC.EMB.sdata0") == 0
   9223  1.6  christos 		     || strcmp (name, ".PPC.EMB.sbss0") == 0)
   9224  1.1  christos 	      {
   9225  1.1  christos 		reg = 0;
   9226  1.1  christos 	      }
   9227  1.1  christos 	    else
   9228  1.1  christos 	      {
   9229  1.1  christos 		info->callbacks->einfo
   9230  1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   9231  1.1  christos 		     "in the wrong output section (%s)\n"),
   9232  1.1  christos 		   input_bfd,
   9233  1.1  christos 		   sym_name,
   9234  1.1  christos 		   howto->name,
   9235  1.1  christos 		   name);
   9236  1.3  christos 
   9237  1.1  christos 		bfd_set_error (bfd_error_bad_value);
   9238  1.1  christos 		ret = FALSE;
   9239  1.1  christos 		goto copy_reloc;
   9240  1.1  christos 	      }
   9241  1.3  christos 
   9242  1.3  christos 	    if (sda != NULL)
   9243  1.3  christos 	      {
   9244  1.3  christos 		if (!is_static_defined (sda))
   9245  1.3  christos 		  {
   9246  1.3  christos 		    unresolved_reloc = TRUE;
   9247  1.3  christos 		    break;
   9248  1.3  christos 		  }
   9249  1.3  christos 		addend -= SYM_VAL (sda);
   9250  1.3  christos 	      }
   9251  1.3  christos 
   9252  1.3  christos 	    insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   9253  1.3  christos 	    if (reg == 0
   9254  1.3  christos 		&& (r_type == R_PPC_VLE_SDA21
   9255  1.3  christos 		    || r_type == R_PPC_VLE_SDA21_LO))
   9256  1.3  christos 	      {
   9257  1.3  christos 		relocation = relocation + addend;
   9258  1.3  christos 		addend = 0;
   9259  1.3  christos 
   9260  1.3  christos 		/* Force e_li insn, keeping RT from original insn.  */
   9261  1.6  christos 		insn &= 0x1f << 21;
   9262  1.1  christos 		insn |= 28u << 26;
   9263  1.1  christos 
   9264  1.1  christos 		/* We have an li20 field, bits 17..20, 11..15, 21..31.  */
   9265  1.1  christos 		/* Top 4 bits of value to 17..20.  */
   9266  1.1  christos 		insn |= (relocation & 0xf0000) >> 5;
   9267  1.3  christos 		/* Next 5 bits of the value to 11..15.  */
   9268  1.1  christos 		insn |= (relocation & 0xf800) << 5;
   9269  1.1  christos 		/* And the final 11 bits of the value to bits 21 to 31.  */
   9270  1.3  christos 		insn |= relocation & 0x7ff;
   9271  1.1  christos 
   9272  1.1  christos 		bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   9273  1.1  christos 
   9274  1.1  christos 		if (r_type == R_PPC_VLE_SDA21
   9275  1.1  christos 		    && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
   9276  1.1  christos 		  goto overflow;
   9277  1.1  christos 		goto copy_reloc;
   9278  1.1  christos 	      }
   9279  1.1  christos 	    else if (r_type == R_PPC_EMB_SDA21
   9280  1.1  christos 		     || r_type == R_PPC_VLE_SDA21
   9281  1.1  christos 		     || r_type == R_PPC_VLE_SDA21_LO)
   9282  1.1  christos 	      {
   9283  1.1  christos 		/* Fill in register field.  */
   9284  1.1  christos 		insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
   9285  1.1  christos 	      }
   9286  1.1  christos 	    bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   9287  1.1  christos 	  }
   9288  1.1  christos 	  break;
   9289  1.1  christos 
   9290  1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   9291  1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   9292  1.1  christos 	case R_PPC_VLE_SDAREL_HI16A:
   9293  1.3  christos 	case R_PPC_VLE_SDAREL_HI16D:
   9294  1.3  christos 	case R_PPC_VLE_SDAREL_HA16A:
   9295  1.1  christos 	case R_PPC_VLE_SDAREL_HA16D:
   9296  1.1  christos 	  {
   9297  1.1  christos 	    bfd_vma value;
   9298  1.1  christos 	    const char *name;
   9299  1.3  christos 	    //int reg;
   9300  1.3  christos 	    struct elf_link_hash_entry *sda = NULL;
   9301  1.1  christos 
   9302  1.1  christos 	    if (sec == NULL || sec->output_section == NULL)
   9303  1.1  christos 	      {
   9304  1.1  christos 		unresolved_reloc = TRUE;
   9305  1.1  christos 		break;
   9306  1.1  christos 	      }
   9307  1.1  christos 
   9308  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9309  1.1  christos 	    if (strcmp (name, ".sdata") == 0
   9310  1.1  christos 		|| strcmp (name, ".sbss") == 0)
   9311  1.1  christos 	      {
   9312  1.1  christos 		//reg = 13;
   9313  1.1  christos 		sda = htab->sdata[0].sym;
   9314  1.1  christos 	      }
   9315  1.1  christos 	    else if (strcmp (name, ".sdata2") == 0
   9316  1.1  christos 		     || strcmp (name, ".sbss2") == 0)
   9317  1.6  christos 	      {
   9318  1.1  christos 		//reg = 2;
   9319  1.1  christos 		sda = htab->sdata[1].sym;
   9320  1.1  christos 	      }
   9321  1.1  christos 	    else
   9322  1.1  christos 	      {
   9323  1.1  christos 		(*_bfd_error_handler)
   9324  1.1  christos 		  (_("%B: the target (%s) of a %s relocation is "
   9325  1.1  christos 		     "in the wrong output section (%s)"),
   9326  1.1  christos 		   input_bfd,
   9327  1.1  christos 		   sym_name,
   9328  1.1  christos 		   howto->name,
   9329  1.3  christos 		   name);
   9330  1.3  christos 
   9331  1.3  christos 		bfd_set_error (bfd_error_bad_value);
   9332  1.3  christos 		ret = FALSE;
   9333  1.3  christos 		goto copy_reloc;
   9334  1.3  christos 	      }
   9335  1.3  christos 
   9336  1.3  christos 	    if (sda != NULL)
   9337  1.3  christos 	      {
   9338  1.3  christos 		if (!is_static_defined (sda))
   9339  1.3  christos 		  {
   9340  1.3  christos 		    unresolved_reloc = TRUE;
   9341  1.3  christos 		    break;
   9342  1.3  christos 		  }
   9343  1.3  christos 	      }
   9344  1.3  christos 
   9345  1.3  christos 	    value = (sda->root.u.def.section->output_section->vma
   9346  1.3  christos 		     + sda->root.u.def.section->output_offset
   9347  1.3  christos 		     + addend);
   9348  1.3  christos 
   9349  1.3  christos 	    if (r_type == R_PPC_VLE_SDAREL_LO16A)
   9350  1.3  christos 	      ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9351  1.3  christos 				   value, split16a_type);
   9352  1.3  christos 	    else if (r_type == R_PPC_VLE_SDAREL_LO16D)
   9353  1.3  christos 	      ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9354  1.3  christos 				   value, split16d_type);
   9355  1.3  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HI16A)
   9356  1.3  christos 	      {
   9357  1.3  christos 		value = value >> 16;
   9358  1.3  christos 		ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9359  1.3  christos 				     value, split16a_type);
   9360  1.3  christos 	      }
   9361  1.3  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HI16D)
   9362  1.1  christos 	      {
   9363  1.1  christos 		value = value >> 16;
   9364  1.6  christos 		ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9365  1.1  christos 				     value, split16d_type);
   9366  1.1  christos 	      }
   9367  1.1  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HA16A)
   9368  1.1  christos 	      {
   9369  1.1  christos 		value = (value + 0x8000) >> 16;
   9370  1.1  christos 		ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9371  1.1  christos 				     value, split16a_type);
   9372  1.1  christos 	      }
   9373  1.1  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HA16D)
   9374  1.1  christos 	      {
   9375  1.1  christos 		value = (value + 0x8000) >> 16;
   9376  1.1  christos 		ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset,
   9377  1.1  christos 				     value, split16d_type);
   9378  1.1  christos 	      }
   9379  1.1  christos 	  }
   9380  1.1  christos 	  goto copy_reloc;
   9381  1.1  christos 
   9382  1.1  christos 	  /* Relocate against the beginning of the section.  */
   9383  1.1  christos 	case R_PPC_SECTOFF:
   9384  1.1  christos 	case R_PPC_SECTOFF_LO:
   9385  1.1  christos 	case R_PPC_SECTOFF_HI:
   9386  1.1  christos 	case R_PPC_SECTOFF_HA:
   9387  1.1  christos 	  if (sec == NULL || sec->output_section == NULL)
   9388  1.1  christos 	    {
   9389  1.1  christos 	      unresolved_reloc = TRUE;
   9390  1.1  christos 	      break;
   9391  1.1  christos 	    }
   9392  1.1  christos 	  addend -= sec->output_section->vma;
   9393  1.1  christos 	  break;
   9394  1.1  christos 
   9395  1.1  christos 	  /* Negative relocations.  */
   9396  1.1  christos 	case R_PPC_EMB_NADDR32:
   9397  1.1  christos 	case R_PPC_EMB_NADDR16:
   9398  1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   9399  1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   9400  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   9401  1.1  christos 	  addend -= 2 * relocation;
   9402  1.1  christos 	  break;
   9403  1.1  christos 
   9404  1.1  christos 	case R_PPC_COPY:
   9405  1.1  christos 	case R_PPC_GLOB_DAT:
   9406  1.1  christos 	case R_PPC_JMP_SLOT:
   9407  1.1  christos 	case R_PPC_RELATIVE:
   9408  1.1  christos 	case R_PPC_IRELATIVE:
   9409  1.1  christos 	case R_PPC_PLT32:
   9410  1.1  christos 	case R_PPC_PLTREL32:
   9411  1.1  christos 	case R_PPC_PLT16_LO:
   9412  1.6  christos 	case R_PPC_PLT16_HI:
   9413  1.1  christos 	case R_PPC_PLT16_HA:
   9414  1.1  christos 	case R_PPC_ADDR30:
   9415  1.1  christos 	case R_PPC_EMB_RELSEC16:
   9416  1.1  christos 	case R_PPC_EMB_RELST_LO:
   9417  1.1  christos 	case R_PPC_EMB_RELST_HI:
   9418  1.1  christos 	case R_PPC_EMB_RELST_HA:
   9419  1.1  christos 	case R_PPC_EMB_BIT_FLD:
   9420  1.1  christos 	  info->callbacks->einfo
   9421  1.1  christos 	    (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
   9422  1.1  christos 	     input_bfd,
   9423  1.6  christos 	     howto->name,
   9424  1.1  christos 	     sym_name);
   9425  1.1  christos 
   9426  1.1  christos 	  bfd_set_error (bfd_error_invalid_operation);
   9427  1.1  christos 	  ret = FALSE;
   9428  1.1  christos 	  goto copy_reloc;
   9429  1.1  christos 	}
   9430  1.1  christos 
   9431  1.1  christos       /* Do any further special processing.  */
   9432  1.1  christos       switch (r_type)
   9433  1.1  christos 	{
   9434  1.1  christos 	default:
   9435  1.1  christos 	  break;
   9436  1.1  christos 
   9437  1.1  christos 	case R_PPC_ADDR16_HA:
   9438  1.1  christos 	case R_PPC_REL16_HA:
   9439  1.1  christos 	case R_PPC_REL16DX_HA:
   9440  1.1  christos 	case R_PPC_SECTOFF_HA:
   9441  1.1  christos 	case R_PPC_TPREL16_HA:
   9442  1.1  christos 	case R_PPC_DTPREL16_HA:
   9443  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   9444  1.1  christos 	case R_PPC_EMB_RELST_HA:
   9445  1.1  christos 	  /* It's just possible that this symbol is a weak symbol
   9446  1.1  christos 	     that's not actually defined anywhere.  In that case,
   9447  1.1  christos 	     'sec' would be NULL, and we should leave the symbol
   9448  1.1  christos 	     alone (it will be set to zero elsewhere in the link).  */
   9449  1.1  christos 	  if (sec == NULL)
   9450  1.1  christos 	    break;
   9451  1.1  christos 	  /* Fall thru */
   9452  1.1  christos 
   9453  1.1  christos 	case R_PPC_PLT16_HA:
   9454  1.1  christos 	case R_PPC_GOT16_HA:
   9455  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   9456  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   9457  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   9458  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   9459  1.1  christos 	  /* Add 0x10000 if sign bit in 0:15 is set.
   9460  1.1  christos 	     Bits 0:15 are not used.  */
   9461  1.1  christos 	  addend += 0x8000;
   9462  1.1  christos 	  break;
   9463  1.1  christos 
   9464  1.1  christos 	case R_PPC_ADDR16:
   9465  1.1  christos 	case R_PPC_ADDR16_LO:
   9466  1.1  christos 	case R_PPC_GOT16:
   9467  1.1  christos 	case R_PPC_GOT16_LO:
   9468  1.1  christos 	case R_PPC_SDAREL16:
   9469  1.1  christos 	case R_PPC_SECTOFF:
   9470  1.1  christos 	case R_PPC_SECTOFF_LO:
   9471  1.1  christos 	case R_PPC_DTPREL16:
   9472  1.1  christos 	case R_PPC_DTPREL16_LO:
   9473  1.6  christos 	case R_PPC_TPREL16:
   9474  1.6  christos 	case R_PPC_TPREL16_LO:
   9475  1.1  christos 	case R_PPC_GOT_TLSGD16:
   9476  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   9477  1.1  christos 	case R_PPC_GOT_TLSLD16:
   9478  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   9479  1.1  christos 	case R_PPC_GOT_DTPREL16:
   9480  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   9481  1.1  christos 	case R_PPC_GOT_TPREL16:
   9482  1.6  christos 	case R_PPC_GOT_TPREL16_LO:
   9483  1.6  christos 	  {
   9484  1.6  christos 	    /* The 32-bit ABI lacks proper relocations to deal with
   9485  1.1  christos 	       certain 64-bit instructions.  Prevent damage to bits
   9486  1.1  christos 	       that make up part of the insn opcode.  */
   9487  1.6  christos 	    unsigned int insn, mask, lobit;
   9488  1.1  christos 
   9489  1.1  christos 	    insn = bfd_get_32 (output_bfd,
   9490  1.1  christos 			       contents + rel->r_offset - d_offset);
   9491  1.1  christos 	    mask = 0;
   9492  1.1  christos 	    if (is_insn_ds_form (insn))
   9493  1.1  christos 	      mask = 3;
   9494  1.1  christos 	    else if (is_insn_dq_form (insn))
   9495  1.1  christos 	      mask = 15;
   9496  1.1  christos 	    else
   9497  1.1  christos 	      break;
   9498  1.1  christos 	    relocation += addend;
   9499  1.1  christos 	    addend = insn & mask;
   9500  1.1  christos 	    lobit = mask & relocation;
   9501  1.1  christos 	    if (lobit != 0)
   9502  1.1  christos 	      {
   9503  1.1  christos 		relocation ^= lobit;
   9504  1.1  christos 		info->callbacks->einfo
   9505  1.1  christos 		  (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
   9506  1.1  christos 		   input_bfd, input_section, rel->r_offset,
   9507  1.1  christos 		   howto->name, sym_name, mask + 1);
   9508  1.1  christos 		bfd_set_error (bfd_error_bad_value);
   9509  1.1  christos 		ret = FALSE;
   9510  1.1  christos 	      }
   9511  1.1  christos 	  }
   9512  1.1  christos 	  break;
   9513  1.1  christos 	}
   9514  1.1  christos 
   9515  1.1  christos #ifdef DEBUG
   9516  1.1  christos       fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
   9517  1.1  christos 	       "offset = %ld, addend = %ld\n",
   9518  1.1  christos 	       howto->name,
   9519  1.1  christos 	       (int) r_type,
   9520  1.1  christos 	       sym_name,
   9521  1.1  christos 	       r_symndx,
   9522  1.1  christos 	       (long) rel->r_offset,
   9523  1.1  christos 	       (long) addend);
   9524  1.3  christos #endif
   9525  1.3  christos 
   9526  1.3  christos       if (unresolved_reloc
   9527  1.3  christos 	  && !((input_section->flags & SEC_DEBUGGING) != 0
   9528  1.3  christos 	       && h->def_dynamic)
   9529  1.3  christos 	  && _bfd_elf_section_offset (output_bfd, info, input_section,
   9530  1.3  christos 				      rel->r_offset) != (bfd_vma) -1)
   9531  1.3  christos 	{
   9532  1.3  christos 	  info->callbacks->einfo
   9533  1.3  christos 	    (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
   9534  1.3  christos 	     input_bfd, input_section, rel->r_offset,
   9535  1.3  christos 	     howto->name,
   9536  1.3  christos 	     sym_name);
   9537  1.3  christos 	  ret = FALSE;
   9538  1.3  christos 	}
   9539  1.3  christos 
   9540  1.3  christos       /* 16-bit fields in insns mostly have signed values, but a
   9541  1.3  christos 	 few insns have 16-bit unsigned values.  Really, we should
   9542  1.3  christos 	 have different reloc types.  */
   9543  1.3  christos       if (howto->complain_on_overflow != complain_overflow_dont
   9544  1.3  christos 	  && howto->dst_mask == 0xffff
   9545  1.3  christos 	  && (input_section->flags & SEC_CODE) != 0)
   9546  1.3  christos 	{
   9547  1.3  christos 	  enum complain_overflow complain = complain_overflow_signed;
   9548  1.3  christos 
   9549  1.3  christos 	  if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
   9550  1.3  christos 	    {
   9551  1.3  christos 	      unsigned int insn;
   9552  1.3  christos 
   9553  1.6  christos 	      insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
   9554  1.6  christos 	      if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
   9555  1.6  christos 		complain = complain_overflow_bitfield;
   9556  1.6  christos 	      else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
   9557  1.6  christos 		       || (insn & (0x3f << 26)) == 24u << 26 /* ori */
   9558  1.6  christos 		       || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
   9559  1.6  christos 		complain = complain_overflow_unsigned;
   9560  1.6  christos 	    }
   9561  1.6  christos 	  if (howto->complain_on_overflow != complain)
   9562  1.6  christos 	    {
   9563  1.6  christos 	      alt_howto = *howto;
   9564  1.6  christos 	      alt_howto.complain_on_overflow = complain;
   9565  1.6  christos 	      howto = &alt_howto;
   9566  1.6  christos 	    }
   9567  1.6  christos 	}
   9568  1.6  christos 
   9569  1.6  christos       if (r_type == R_PPC_REL16DX_HA)
   9570  1.6  christos 	{
   9571  1.6  christos 	  /* Split field reloc isn't handled by _bfd_final_link_relocate.  */
   9572  1.6  christos 	  if (rel->r_offset + 4 > input_section->size)
   9573  1.6  christos 	    r = bfd_reloc_outofrange;
   9574  1.6  christos 	  else
   9575  1.6  christos 	    {
   9576  1.6  christos 	      unsigned int insn;
   9577  1.1  christos 
   9578  1.1  christos 	      relocation += addend;
   9579  1.1  christos 	      relocation -= (rel->r_offset
   9580  1.1  christos 			     + input_section->output_offset
   9581  1.1  christos 			     + input_section->output_section->vma);
   9582  1.3  christos 	      relocation >>= 16;
   9583  1.5  christos 	      insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   9584  1.5  christos 	      insn &= ~0x1fffc1;
   9585  1.5  christos 	      insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
   9586  1.5  christos 	      bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   9587  1.5  christos 	      r = bfd_reloc_ok;
   9588  1.5  christos 	    }
   9589  1.5  christos 	}
   9590  1.6  christos       else
   9591  1.6  christos 	r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
   9592  1.6  christos 				      rel->r_offset, relocation, addend);
   9593  1.1  christos 
   9594  1.1  christos       if (r != bfd_reloc_ok)
   9595  1.1  christos 	{
   9596  1.1  christos 	  if (r == bfd_reloc_overflow)
   9597  1.1  christos 	    {
   9598  1.1  christos 	    overflow:
   9599  1.1  christos 	      /* On code like "if (foo) foo();" don't report overflow
   9600  1.1  christos 		 on a branch to zero when foo is undefined.  */
   9601  1.1  christos 	      if (!warned
   9602  1.1  christos 		  && !(h != NULL
   9603  1.6  christos 		       && (h->root.type == bfd_link_hash_undefweak
   9604  1.6  christos 			   || h->root.type == bfd_link_hash_undefined)
   9605  1.6  christos 		       && is_branch_reloc (r_type)))
   9606  1.6  christos 		info->callbacks->reloc_overflow
   9607  1.6  christos 		  (info, (h ? &h->root : NULL), sym_name, howto->name,
   9608  1.6  christos 		   rel->r_addend, input_bfd, input_section, rel->r_offset);
   9609  1.6  christos 	    }
   9610  1.6  christos 	  else
   9611  1.6  christos 	    {
   9612  1.6  christos 	      info->callbacks->einfo
   9613  1.6  christos 		(_("%P: %H: %s reloc against `%s': error %d\n"),
   9614  1.6  christos 		 input_bfd, input_section, rel->r_offset,
   9615  1.6  christos 		 howto->name, sym_name, (int) r);
   9616  1.6  christos 	      ret = FALSE;
   9617  1.6  christos 	    }
   9618  1.6  christos 	}
   9619  1.6  christos     copy_reloc:
   9620  1.6  christos       if (wrel != rel)
   9621  1.6  christos 	*wrel = *rel;
   9622  1.6  christos     }
   9623  1.6  christos 
   9624  1.6  christos   if (wrel != rel)
   9625  1.6  christos     {
   9626  1.6  christos       Elf_Internal_Shdr *rel_hdr;
   9627  1.6  christos       size_t deleted = rel - wrel;
   9628  1.1  christos 
   9629  1.1  christos       rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
   9630  1.1  christos       rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
   9631  1.1  christos       if (rel_hdr->sh_size == 0)
   9632  1.1  christos 	{
   9633  1.1  christos 	  /* It is too late to remove an empty reloc section.  Leave
   9634  1.3  christos 	     one NONE reloc.
   9635  1.3  christos 	     ??? What is wrong with an empty section???  */
   9636  1.3  christos 	  rel_hdr->sh_size = rel_hdr->sh_entsize;
   9637  1.3  christos 	  deleted -= 1;
   9638  1.3  christos 	  wrel++;
   9639  1.3  christos 	}
   9640  1.3  christos       relend = wrel;
   9641  1.3  christos       rel_hdr = _bfd_elf_single_rel_hdr (input_section);
   9642  1.3  christos       rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
   9643  1.3  christos       input_section->reloc_count -= deleted;
   9644  1.3  christos     }
   9645  1.3  christos 
   9646  1.6  christos #ifdef DEBUG
   9647  1.3  christos   fprintf (stderr, "\n");
   9648  1.3  christos #endif
   9649  1.3  christos 
   9650  1.3  christos   if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
   9651  1.3  christos       && input_section->size != input_section->rawsize
   9652  1.3  christos       && (strcmp (input_section->output_section->name, ".init") == 0
   9653  1.3  christos 	  || strcmp (input_section->output_section->name, ".fini") == 0))
   9654  1.3  christos     {
   9655  1.3  christos       /* Branch around the trampolines.  */
   9656  1.3  christos       unsigned int insn = B + input_section->size - input_section->rawsize;
   9657  1.3  christos       bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
   9658  1.3  christos     }
   9659  1.3  christos 
   9660  1.3  christos   if (htab->params->ppc476_workaround
   9661  1.3  christos       && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
   9662  1.3  christos       && (!bfd_link_relocatable (info)
   9663  1.3  christos 	  || (input_section->output_section->alignment_power
   9664  1.3  christos 	      >= htab->params->pagesize_p2)))
   9665  1.3  christos     {
   9666  1.3  christos       bfd_vma start_addr, end_addr, addr;
   9667  1.3  christos       bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   9668  1.3  christos 
   9669  1.3  christos       if (relax_info->workaround_size != 0)
   9670  1.3  christos 	{
   9671  1.3  christos 	  bfd_byte *p;
   9672  1.3  christos 	  unsigned int n;
   9673  1.3  christos 	  bfd_byte fill[4];
   9674  1.3  christos 
   9675  1.3  christos 	  bfd_put_32 (input_bfd, BA, fill);
   9676  1.3  christos 	  p = contents + input_section->size - relax_info->workaround_size;
   9677  1.3  christos 	  n = relax_info->workaround_size >> 2;
   9678  1.3  christos 	  while (n--)
   9679  1.3  christos 	    {
   9680  1.3  christos 	      memcpy (p, fill, 4);
   9681  1.3  christos 	      p += 4;
   9682  1.3  christos 	    }
   9683  1.3  christos 	}
   9684  1.3  christos 
   9685  1.3  christos       /* The idea is: Replace the last instruction on a page with a
   9686  1.3  christos 	 branch to a patch area.  Put the insn there followed by a
   9687  1.3  christos 	 branch back to the next page.  Complicated a little by
   9688  1.3  christos 	 needing to handle moved conditional branches, and by not
   9689  1.3  christos 	 wanting to touch data-in-text.  */
   9690  1.3  christos 
   9691  1.3  christos       start_addr = (input_section->output_section->vma
   9692  1.3  christos 		    + input_section->output_offset);
   9693  1.3  christos       end_addr = (start_addr + input_section->size
   9694  1.3  christos 		  - relax_info->workaround_size);
   9695  1.3  christos       for (addr = ((start_addr & -pagesize) + pagesize - 4);
   9696  1.3  christos 	   addr < end_addr;
   9697  1.3  christos 	   addr += pagesize)
   9698  1.3  christos 	{
   9699  1.3  christos 	  bfd_vma offset = addr - start_addr;
   9700  1.3  christos 	  Elf_Internal_Rela *lo, *hi;
   9701  1.3  christos 	  bfd_boolean is_data;
   9702  1.3  christos 	  bfd_vma patch_off, patch_addr;
   9703  1.3  christos 	  unsigned int insn;
   9704  1.3  christos 
   9705  1.3  christos 	  /* Do we have a data reloc at this offset?  If so, leave
   9706  1.3  christos 	     the word alone.  */
   9707  1.3  christos 	  is_data = FALSE;
   9708  1.3  christos 	  lo = relocs;
   9709  1.3  christos 	  hi = relend;
   9710  1.3  christos 	  rel = NULL;
   9711  1.3  christos 	  while (lo < hi)
   9712  1.3  christos 	    {
   9713  1.3  christos 	      rel = lo + (hi - lo) / 2;
   9714  1.3  christos 	      if (rel->r_offset < offset)
   9715  1.3  christos 		lo = rel + 1;
   9716  1.3  christos 	      else if (rel->r_offset > offset + 3)
   9717  1.3  christos 		hi = rel;
   9718  1.3  christos 	      else
   9719  1.3  christos 		{
   9720  1.3  christos 		  switch (ELF32_R_TYPE (rel->r_info))
   9721  1.3  christos 		    {
   9722  1.3  christos 		    case R_PPC_ADDR32:
   9723  1.3  christos 		    case R_PPC_UADDR32:
   9724  1.3  christos 		    case R_PPC_REL32:
   9725  1.3  christos 		    case R_PPC_ADDR30:
   9726  1.3  christos 		      is_data = TRUE;
   9727  1.3  christos 		      break;
   9728  1.3  christos 		    default:
   9729  1.3  christos 		      break;
   9730  1.3  christos 		    }
   9731  1.3  christos 		  break;
   9732  1.3  christos 		}
   9733  1.3  christos 	    }
   9734  1.3  christos 	  if (is_data)
   9735  1.3  christos 	    continue;
   9736  1.3  christos 
   9737  1.3  christos 	  /* Some instructions can be left alone too.  Unconditional
   9738  1.3  christos 	     branches, except for bcctr with BO=0x14 (bctr, bctrl),
   9739  1.3  christos 	     avoid the icache failure.
   9740  1.3  christos 
   9741  1.3  christos 	     The problem occurs due to prefetch across a page boundary
   9742  1.3  christos 	     where stale instructions can be fetched from the next
   9743  1.3  christos 	     page, and the mechanism for flushing these bad
   9744  1.3  christos 	     instructions fails under certain circumstances.  The
   9745  1.3  christos 	     unconditional branches:
   9746  1.3  christos 	     1) Branch: b, bl, ba, bla,
   9747  1.3  christos 	     2) Branch Conditional: bc, bca, bcl, bcla,
   9748  1.3  christos 	     3) Branch Conditional to Link Register: bclr, bclrl,
   9749  1.3  christos 	     where (2) and (3) have BO=0x14 making them unconditional,
   9750  1.3  christos 	     prevent the bad prefetch because the prefetch itself is
   9751  1.3  christos 	     affected by these instructions.  This happens even if the
   9752  1.3  christos 	     instruction is not executed.
   9753  1.3  christos 
   9754  1.3  christos 	     A bctr example:
   9755  1.3  christos 	     .
   9756  1.6  christos 	     .	lis 9,new_page@ha
   9757  1.6  christos 	     .	addi 9,9,new_page@l
   9758  1.6  christos 	     .	mtctr 9
   9759  1.6  christos 	     .	bctr
   9760  1.3  christos 	     .	nop
   9761  1.6  christos 	     .	nop
   9762  1.6  christos 	     . new_page:
   9763  1.3  christos 	     .
   9764  1.3  christos 	     The bctr is not predicted taken due to ctr not being
   9765  1.3  christos 	     ready, so prefetch continues on past the bctr into the
   9766  1.3  christos 	     new page which might have stale instructions.  If they
   9767  1.3  christos 	     fail to be flushed, then they will be executed after the
   9768  1.3  christos 	     bctr executes.  Either of the following modifications
   9769  1.3  christos 	     prevent the bad prefetch from happening in the first
   9770  1.3  christos 	     place:
   9771  1.3  christos 	     .
   9772  1.3  christos 	     .	lis 9,new_page@ha	 lis 9,new_page@ha
   9773  1.3  christos 	     .	addi 9,9,new_page@l	 addi 9,9,new_page@l
   9774  1.3  christos 	     .	mtctr 9			 mtctr 9
   9775  1.3  christos 	     .	bctr			 bctr
   9776  1.3  christos 	     .	nop			 b somewhere_else
   9777  1.3  christos 	     .	b somewhere_else	 nop
   9778  1.3  christos 	     . new_page:		new_page:
   9779  1.3  christos 	     .  */
   9780  1.3  christos 	  insn = bfd_get_32 (input_bfd, contents + offset);
   9781  1.3  christos 	  if ((insn & (0x3f << 26)) == (18u << 26)          /* b,bl,ba,bla */
   9782  1.3  christos 	      || ((insn & (0x3f << 26)) == (16u << 26)      /* bc,bcl,bca,bcla*/
   9783  1.5  christos 		  && (insn & (0x14 << 21)) == (0x14 << 21)) /*   with BO=0x14 */
   9784  1.5  christos 	      || ((insn & (0x3f << 26)) == (19u << 26)
   9785  1.3  christos 		  && (insn & (0x3ff << 1)) == (16u << 1)    /* bclr,bclrl */
   9786  1.3  christos 		  && (insn & (0x14 << 21)) == (0x14 << 21)))/*   with BO=0x14 */
   9787  1.3  christos 	    continue;
   9788  1.3  christos 
   9789  1.3  christos 	  patch_addr = (start_addr + input_section->size
   9790  1.3  christos 			- relax_info->workaround_size);
   9791  1.3  christos 	  patch_addr = (patch_addr + 15) & -16;
   9792  1.3  christos 	  patch_off = patch_addr - start_addr;
   9793  1.3  christos 	  bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
   9794  1.3  christos 
   9795  1.3  christos 	  if (rel != NULL
   9796  1.3  christos 	      && rel->r_offset >= offset
   9797  1.5  christos 	      && rel->r_offset < offset + 4)
   9798  1.5  christos 	    {
   9799  1.5  christos 	      asection *sreloc;
   9800  1.5  christos 
   9801  1.5  christos 	      /* If the insn we are patching had a reloc, adjust the
   9802  1.5  christos 		 reloc r_offset so that the reloc applies to the moved
   9803  1.5  christos 		 location.  This matters for -r and --emit-relocs.  */
   9804  1.5  christos 	      if (rel + 1 != relend)
   9805  1.5  christos 		{
   9806  1.5  christos 		  Elf_Internal_Rela tmp = *rel;
   9807  1.5  christos 
   9808  1.5  christos 		  /* Keep the relocs sorted by r_offset.  */
   9809  1.5  christos 		  memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
   9810  1.5  christos 		  relend[-1] = tmp;
   9811  1.5  christos 		}
   9812  1.5  christos 	      relend[-1].r_offset += patch_off - offset;
   9813  1.5  christos 
   9814  1.5  christos 	      /* Adjust REL16 addends too.  */
   9815  1.5  christos 	      switch (ELF32_R_TYPE (relend[-1].r_info))
   9816  1.5  christos 		{
   9817  1.5  christos 		case R_PPC_REL16:
   9818  1.5  christos 		case R_PPC_REL16_LO:
   9819  1.5  christos 		case R_PPC_REL16_HI:
   9820  1.5  christos 		case R_PPC_REL16_HA:
   9821  1.5  christos 		  relend[-1].r_addend += patch_off - offset;
   9822  1.5  christos 		  break;
   9823  1.5  christos 		default:
   9824  1.5  christos 		  break;
   9825  1.5  christos 		}
   9826  1.5  christos 
   9827  1.5  christos 	      /* If we are building a PIE or shared library with
   9828  1.5  christos 		 non-PIC objects, perhaps we had a dynamic reloc too?
   9829  1.5  christos 		 If so, the dynamic reloc must move with the insn.  */
   9830  1.5  christos 	      sreloc = elf_section_data (input_section)->sreloc;
   9831  1.5  christos 	      if (sreloc != NULL)
   9832  1.5  christos 		{
   9833  1.5  christos 		  Elf32_External_Rela *slo, *shi, *srelend;
   9834  1.5  christos 		  bfd_vma soffset;
   9835  1.5  christos 
   9836  1.5  christos 		  slo = (Elf32_External_Rela *) sreloc->contents;
   9837  1.5  christos 		  shi = srelend = slo + sreloc->reloc_count;
   9838  1.5  christos 		  soffset = (offset + input_section->output_section->vma
   9839  1.5  christos 			     + input_section->output_offset);
   9840  1.5  christos 		  while (slo < shi)
   9841  1.5  christos 		    {
   9842  1.5  christos 		      Elf32_External_Rela *srel = slo + (shi - slo) / 2;
   9843  1.5  christos 		      bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
   9844  1.5  christos 						&outrel);
   9845  1.5  christos 		      if (outrel.r_offset < soffset)
   9846  1.5  christos 			slo = srel + 1;
   9847  1.5  christos 		      else if (outrel.r_offset > soffset + 3)
   9848  1.3  christos 			shi = srel;
   9849  1.3  christos 		      else
   9850  1.3  christos 			{
   9851  1.3  christos 			  if (srel + 1 != srelend)
   9852  1.3  christos 			    {
   9853  1.3  christos 			      memmove (srel, srel + 1,
   9854  1.3  christos 				       (srelend - (srel + 1)) * sizeof (*srel));
   9855  1.3  christos 			      srel = srelend - 1;
   9856  1.3  christos 			    }
   9857  1.3  christos 			  outrel.r_offset += patch_off - offset;
   9858  1.6  christos 			  bfd_elf32_swap_reloca_out (output_bfd, &outrel,
   9859  1.3  christos 						     (bfd_byte *) srel);
   9860  1.6  christos 			  break;
   9861  1.3  christos 			}
   9862  1.3  christos 		    }
   9863  1.3  christos 		}
   9864  1.3  christos 	    }
   9865  1.3  christos 	  else
   9866  1.3  christos 	    rel = NULL;
   9867  1.3  christos 
   9868  1.3  christos 	  if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
   9869  1.3  christos 	      && (insn & 2) == 0 /* relative */)
   9870  1.3  christos 	    {
   9871  1.3  christos 	      bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
   9872  1.3  christos 
   9873  1.3  christos 	      delta += offset - patch_off;
   9874  1.3  christos 	      if (bfd_link_relocatable (info) && rel != NULL)
   9875  1.3  christos 		delta = 0;
   9876  1.3  christos 	      if (!bfd_link_relocatable (info) && rel != NULL)
   9877  1.3  christos 		{
   9878  1.3  christos 		  enum elf_ppc_reloc_type r_type;
   9879  1.3  christos 
   9880  1.3  christos 		  r_type = ELF32_R_TYPE (relend[-1].r_info);
   9881  1.3  christos 		  if (r_type == R_PPC_REL14_BRTAKEN)
   9882  1.3  christos 		    insn |= BRANCH_PREDICT_BIT;
   9883  1.3  christos 		  else if (r_type == R_PPC_REL14_BRNTAKEN)
   9884  1.3  christos 		    insn &= ~BRANCH_PREDICT_BIT;
   9885  1.3  christos 		  else
   9886  1.3  christos 		    BFD_ASSERT (r_type == R_PPC_REL14);
   9887  1.3  christos 
   9888  1.3  christos 		  if ((r_type == R_PPC_REL14_BRTAKEN
   9889  1.3  christos 		       || r_type == R_PPC_REL14_BRNTAKEN)
   9890  1.3  christos 		      && delta + 0x8000 < 0x10000
   9891  1.3  christos 		      && (bfd_signed_vma) delta < 0)
   9892  1.3  christos 		    insn ^= BRANCH_PREDICT_BIT;
   9893  1.3  christos 		}
   9894  1.3  christos 	      if (delta + 0x8000 < 0x10000)
   9895  1.3  christos 		{
   9896  1.3  christos 		  bfd_put_32 (input_bfd,
   9897  1.3  christos 			      (insn & ~0xfffc) | (delta & 0xfffc),
   9898  1.3  christos 			      contents + patch_off);
   9899  1.3  christos 		  patch_off += 4;
   9900  1.3  christos 		  bfd_put_32 (input_bfd,
   9901  1.3  christos 			      B | ((offset + 4 - patch_off) & 0x3fffffc),
   9902  1.3  christos 			      contents + patch_off);
   9903  1.3  christos 		  patch_off += 4;
   9904  1.3  christos 		}
   9905  1.3  christos 	      else
   9906  1.3  christos 		{
   9907  1.3  christos 		  if (rel != NULL)
   9908  1.3  christos 		    {
   9909  1.3  christos 		      unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
   9910  1.3  christos 
   9911  1.3  christos 		      relend[-1].r_offset += 8;
   9912  1.3  christos 		      relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
   9913  1.3  christos 		    }
   9914  1.3  christos 		  bfd_put_32 (input_bfd,
   9915  1.3  christos 			      (insn & ~0xfffc) | 8,
   9916  1.3  christos 			      contents + patch_off);
   9917  1.3  christos 		  patch_off += 4;
   9918  1.3  christos 		  bfd_put_32 (input_bfd,
   9919  1.3  christos 			      B | ((offset + 4 - patch_off) & 0x3fffffc),
   9920  1.3  christos 			      contents + patch_off);
   9921  1.3  christos 		  patch_off += 4;
   9922  1.3  christos 		  bfd_put_32 (input_bfd,
   9923  1.3  christos 			      B | ((delta - 8) & 0x3fffffc),
   9924  1.3  christos 			      contents + patch_off);
   9925  1.3  christos 		  patch_off += 4;
   9926  1.1  christos 		}
   9927  1.1  christos 	    }
   9928  1.1  christos 	  else
   9929  1.1  christos 	    {
   9930  1.1  christos 	      bfd_put_32 (input_bfd, insn, contents + patch_off);
   9931  1.1  christos 	      patch_off += 4;
   9932  1.1  christos 	      bfd_put_32 (input_bfd,
   9933  1.1  christos 			  B | ((offset + 4 - patch_off) & 0x3fffffc),
   9934  1.1  christos 			  contents + patch_off);
   9935  1.1  christos 	      patch_off += 4;
   9936  1.1  christos 	    }
   9937  1.1  christos 	  BFD_ASSERT (patch_off <= input_section->size);
   9938  1.1  christos 	  relax_info->workaround_size = input_section->size - patch_off;
   9939  1.1  christos 	}
   9940  1.1  christos     }
   9941  1.1  christos 
   9942  1.1  christos   return ret;
   9943  1.1  christos }
   9944  1.1  christos 
   9945  1.1  christos /* Finish up dynamic symbol handling.  We set the contents of various
   9947  1.1  christos    dynamic sections here.  */
   9948  1.1  christos 
   9949  1.1  christos static bfd_boolean
   9950  1.1  christos ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
   9951  1.1  christos 			       struct bfd_link_info *info,
   9952  1.1  christos 			       struct elf_link_hash_entry *h,
   9953  1.1  christos 			       Elf_Internal_Sym *sym)
   9954  1.1  christos {
   9955  1.1  christos   struct ppc_elf_link_hash_table *htab;
   9956  1.1  christos   struct plt_entry *ent;
   9957  1.1  christos   bfd_boolean doneone;
   9958  1.1  christos 
   9959  1.1  christos #ifdef DEBUG
   9960  1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
   9961  1.1  christos 	   h->root.root.string);
   9962  1.1  christos #endif
   9963  1.1  christos 
   9964  1.1  christos   htab = ppc_elf_hash_table (info);
   9965  1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   9966  1.1  christos 
   9967  1.1  christos   doneone = FALSE;
   9968  1.1  christos   for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   9969  1.1  christos     if (ent->plt.offset != (bfd_vma) -1)
   9970  1.1  christos       {
   9971  1.1  christos 	if (!doneone)
   9972  1.1  christos 	  {
   9973  1.1  christos 	    Elf_Internal_Rela rela;
   9974  1.1  christos 	    bfd_byte *loc;
   9975  1.1  christos 	    bfd_vma reloc_index;
   9976  1.1  christos 
   9977  1.1  christos 	    if (htab->plt_type == PLT_NEW
   9978  1.1  christos 		|| !htab->elf.dynamic_sections_created
   9979  1.1  christos 		|| h->dynindx == -1)
   9980  1.1  christos 	      reloc_index = ent->plt.offset / 4;
   9981  1.1  christos 	    else
   9982  1.1  christos 	      {
   9983  1.1  christos 		reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
   9984  1.1  christos 			       / htab->plt_slot_size);
   9985  1.1  christos 		if (reloc_index > PLT_NUM_SINGLE_ENTRIES
   9986  1.6  christos 		    && htab->plt_type == PLT_OLD)
   9987  1.1  christos 		  reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
   9988  1.1  christos 	      }
   9989  1.1  christos 
   9990  1.6  christos 	    /* This symbol has an entry in the procedure linkage table.
   9991  1.1  christos 	       Set it up.  */
   9992  1.1  christos 	    if (htab->plt_type == PLT_VXWORKS
   9993  1.1  christos 		&& htab->elf.dynamic_sections_created
   9994  1.1  christos 		&& h->dynindx != -1)
   9995  1.1  christos 	      {
   9996  1.1  christos 		bfd_vma got_offset;
   9997  1.1  christos 		const bfd_vma *plt_entry;
   9998  1.1  christos 
   9999  1.1  christos 		/* The first three entries in .got.plt are reserved.  */
   10000  1.1  christos 		got_offset = (reloc_index + 3) * 4;
   10001  1.1  christos 
   10002  1.1  christos 		/* Use the right PLT. */
   10003  1.1  christos 		plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
   10004  1.1  christos 			    : ppc_elf_vxworks_plt_entry;
   10005  1.1  christos 
   10006  1.1  christos 		/* Fill in the .plt on VxWorks.  */
   10007  1.1  christos 		if (bfd_link_pic (info))
   10008  1.1  christos 		  {
   10009  1.1  christos 		    bfd_put_32 (output_bfd,
   10010  1.1  christos 				plt_entry[0] | PPC_HA (got_offset),
   10011  1.1  christos 				htab->plt->contents + ent->plt.offset + 0);
   10012  1.1  christos 		    bfd_put_32 (output_bfd,
   10013  1.1  christos 				plt_entry[1] | PPC_LO (got_offset),
   10014  1.1  christos 				htab->plt->contents + ent->plt.offset + 4);
   10015  1.1  christos 		  }
   10016  1.1  christos 		else
   10017  1.1  christos 		  {
   10018  1.1  christos 		    bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
   10019  1.1  christos 
   10020  1.1  christos 		    bfd_put_32 (output_bfd,
   10021  1.1  christos 				plt_entry[0] | PPC_HA (got_loc),
   10022  1.1  christos 				htab->plt->contents + ent->plt.offset + 0);
   10023  1.1  christos 		    bfd_put_32 (output_bfd,
   10024  1.1  christos 				plt_entry[1] | PPC_LO (got_loc),
   10025  1.1  christos 				htab->plt->contents + ent->plt.offset + 4);
   10026  1.1  christos 		  }
   10027  1.1  christos 
   10028  1.1  christos 		bfd_put_32 (output_bfd, plt_entry[2],
   10029  1.1  christos 			    htab->plt->contents + ent->plt.offset + 8);
   10030  1.1  christos 		bfd_put_32 (output_bfd, plt_entry[3],
   10031  1.1  christos 			    htab->plt->contents + ent->plt.offset + 12);
   10032  1.1  christos 
   10033  1.1  christos 		/* This instruction is an immediate load.  The value loaded is
   10034  1.1  christos 		   the byte offset of the R_PPC_JMP_SLOT relocation from the
   10035  1.1  christos 		   start of the .rela.plt section.  The value is stored in the
   10036  1.1  christos 		   low-order 16 bits of the load instruction.  */
   10037  1.1  christos 		/* NOTE: It appears that this is now an index rather than a
   10038  1.1  christos 		   prescaled offset.  */
   10039  1.1  christos 		bfd_put_32 (output_bfd,
   10040  1.1  christos 			    plt_entry[4] | reloc_index,
   10041  1.1  christos 			    htab->plt->contents + ent->plt.offset + 16);
   10042  1.1  christos 		/* This instruction is a PC-relative branch whose target is
   10043  1.1  christos 		   the start of the PLT section.  The address of this branch
   10044  1.1  christos 		   instruction is 20 bytes beyond the start of this PLT entry.
   10045  1.1  christos 		   The address is encoded in bits 6-29, inclusive.  The value
   10046  1.1  christos 		   stored is right-shifted by two bits, permitting a 26-bit
   10047  1.1  christos 		   offset.  */
   10048  1.6  christos 		bfd_put_32 (output_bfd,
   10049  1.1  christos 			    (plt_entry[5]
   10050  1.1  christos 			     | (-(ent->plt.offset + 20) & 0x03fffffc)),
   10051  1.1  christos 			    htab->plt->contents + ent->plt.offset + 20);
   10052  1.1  christos 		bfd_put_32 (output_bfd, plt_entry[6],
   10053  1.1  christos 			    htab->plt->contents + ent->plt.offset + 24);
   10054  1.1  christos 		bfd_put_32 (output_bfd, plt_entry[7],
   10055  1.1  christos 			    htab->plt->contents + ent->plt.offset + 28);
   10056  1.1  christos 
   10057  1.1  christos 		/* Fill in the GOT entry corresponding to this PLT slot with
   10058  1.1  christos 		   the address immediately after the "bctr" instruction
   10059  1.1  christos 		   in this PLT entry.  */
   10060  1.1  christos 		bfd_put_32 (output_bfd, (htab->plt->output_section->vma
   10061  1.1  christos 					 + htab->plt->output_offset
   10062  1.1  christos 					 + ent->plt.offset + 16),
   10063  1.1  christos 			    htab->sgotplt->contents + got_offset);
   10064  1.1  christos 
   10065  1.1  christos 		if (!bfd_link_pic (info))
   10066  1.1  christos 		  {
   10067  1.1  christos 		    /* Fill in a couple of entries in .rela.plt.unloaded.  */
   10068  1.1  christos 		    loc = htab->srelplt2->contents
   10069  1.1  christos 		      + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
   10070  1.1  christos 			  * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
   10071  1.1  christos 			 * sizeof (Elf32_External_Rela));
   10072  1.1  christos 
   10073  1.1  christos 		    /* Provide the @ha relocation for the first instruction.  */
   10074  1.1  christos 		    rela.r_offset = (htab->plt->output_section->vma
   10075  1.1  christos 				     + htab->plt->output_offset
   10076  1.1  christos 				     + ent->plt.offset + 2);
   10077  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   10078  1.1  christos 						R_PPC_ADDR16_HA);
   10079  1.1  christos 		    rela.r_addend = got_offset;
   10080  1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10081  1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   10082  1.1  christos 
   10083  1.1  christos 		    /* Provide the @l relocation for the second instruction.  */
   10084  1.1  christos 		    rela.r_offset = (htab->plt->output_section->vma
   10085  1.1  christos 				     + htab->plt->output_offset
   10086  1.1  christos 				     + ent->plt.offset + 6);
   10087  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   10088  1.1  christos 						R_PPC_ADDR16_LO);
   10089  1.1  christos 		    rela.r_addend = got_offset;
   10090  1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10091  1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   10092  1.1  christos 
   10093  1.1  christos 		    /* Provide a relocation for the GOT entry corresponding to this
   10094  1.1  christos 		       PLT slot.  Point it at the middle of the .plt entry.  */
   10095  1.1  christos 		    rela.r_offset = (htab->sgotplt->output_section->vma
   10096  1.1  christos 				     + htab->sgotplt->output_offset
   10097  1.1  christos 				     + got_offset);
   10098  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
   10099  1.1  christos 						R_PPC_ADDR32);
   10100  1.1  christos 		    rela.r_addend = ent->plt.offset + 16;
   10101  1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10102  1.1  christos 		  }
   10103  1.1  christos 
   10104  1.1  christos 		/* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
   10105  1.1  christos 		   In particular, the offset for the relocation is not the
   10106  1.1  christos 		   address of the PLT entry for this function, as specified
   10107  1.1  christos 		   by the ABI.  Instead, the offset is set to the address of
   10108  1.1  christos 		   the GOT slot for this function.  See EABI 4.4.4.1.  */
   10109  1.1  christos 		rela.r_offset = (htab->sgotplt->output_section->vma
   10110  1.1  christos 				 + htab->sgotplt->output_offset
   10111  1.1  christos 				 + got_offset);
   10112  1.1  christos 
   10113  1.1  christos 	      }
   10114  1.1  christos 	    else
   10115  1.1  christos 	      {
   10116  1.1  christos 		asection *splt = htab->plt;
   10117  1.1  christos 		if (!htab->elf.dynamic_sections_created
   10118  1.1  christos 		    || h->dynindx == -1)
   10119  1.1  christos 		  splt = htab->iplt;
   10120  1.1  christos 
   10121  1.1  christos 		rela.r_offset = (splt->output_section->vma
   10122  1.1  christos 				 + splt->output_offset
   10123  1.1  christos 				 + ent->plt.offset);
   10124  1.1  christos 		if (htab->plt_type == PLT_OLD
   10125  1.1  christos 		    || !htab->elf.dynamic_sections_created
   10126  1.1  christos 		    || h->dynindx == -1)
   10127  1.1  christos 		  {
   10128  1.1  christos 		    /* We don't need to fill in the .plt.  The ppc dynamic
   10129  1.1  christos 		       linker will fill it in.  */
   10130  1.1  christos 		  }
   10131  1.1  christos 		else
   10132  1.1  christos 		  {
   10133  1.1  christos 		    bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
   10134  1.1  christos 				   + htab->glink->output_section->vma
   10135  1.1  christos 				   + htab->glink->output_offset);
   10136  1.1  christos 		    bfd_put_32 (output_bfd, val,
   10137  1.1  christos 				splt->contents + ent->plt.offset);
   10138  1.1  christos 		  }
   10139  1.1  christos 	      }
   10140  1.1  christos 
   10141  1.1  christos 	    /* Fill in the entry in the .rela.plt section.  */
   10142  1.1  christos 	    rela.r_addend = 0;
   10143  1.1  christos 	    if (!htab->elf.dynamic_sections_created
   10144  1.1  christos 		|| h->dynindx == -1)
   10145  1.1  christos 	      {
   10146  1.1  christos 		BFD_ASSERT (h->type == STT_GNU_IFUNC
   10147  1.1  christos 			    && h->def_regular
   10148  1.1  christos 			    && (h->root.type == bfd_link_hash_defined
   10149  1.1  christos 				|| h->root.type == bfd_link_hash_defweak));
   10150  1.1  christos 		rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   10151  1.1  christos 		rela.r_addend = SYM_VAL (h);
   10152  1.1  christos 	      }
   10153  1.1  christos 	    else
   10154  1.1  christos 	      rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
   10155  1.1  christos 
   10156  1.1  christos 	    if (!htab->elf.dynamic_sections_created
   10157  1.1  christos 		|| h->dynindx == -1)
   10158  1.1  christos 	      loc = (htab->reliplt->contents
   10159  1.1  christos 		     + (htab->reliplt->reloc_count++
   10160  1.1  christos 			* sizeof (Elf32_External_Rela)));
   10161  1.1  christos 	    else
   10162  1.1  christos 	      loc = (htab->relplt->contents
   10163  1.1  christos 		     + reloc_index * sizeof (Elf32_External_Rela));
   10164  1.1  christos 	    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10165  1.1  christos 
   10166  1.1  christos 	    if (!h->def_regular)
   10167  1.1  christos 	      {
   10168  1.1  christos 		/* Mark the symbol as undefined, rather than as
   10169  1.1  christos 		   defined in the .plt section.  Leave the value if
   10170  1.6  christos 		   there were any relocations where pointer equality
   10171  1.1  christos 		   matters (this is a clue for the dynamic linker, to
   10172  1.1  christos 		   make function pointer comparisons work between an
   10173  1.1  christos 		   application and shared library), otherwise set it
   10174  1.1  christos 		   to zero.  */
   10175  1.1  christos 		sym->st_shndx = SHN_UNDEF;
   10176  1.1  christos 		if (!h->pointer_equality_needed)
   10177  1.1  christos 		  sym->st_value = 0;
   10178  1.1  christos 		else if (!h->ref_regular_nonweak)
   10179  1.1  christos 		  {
   10180  1.1  christos 		    /* This breaks function pointer comparisons, but
   10181  1.1  christos 		       that is better than breaking tests for a NULL
   10182  1.1  christos 		       function pointer.  */
   10183  1.1  christos 		    sym->st_value = 0;
   10184  1.1  christos 		  }
   10185  1.1  christos 	      }
   10186  1.1  christos 	    else if (h->type == STT_GNU_IFUNC
   10187  1.1  christos 		     && !bfd_link_pic (info))
   10188  1.1  christos 	      {
   10189  1.1  christos 		/* Set the value of ifunc symbols in a non-pie
   10190  1.1  christos 		   executable to the glink entry.  This is to avoid
   10191  1.1  christos 		   text relocations.  We can't do this for ifunc in
   10192  1.1  christos 		   allocate_dynrelocs, as we do for normal dynamic
   10193  1.1  christos 		   function symbols with plt entries, because we need
   10194  1.1  christos 		   to keep the original value around for the ifunc
   10195  1.1  christos 		   relocation.  */
   10196  1.1  christos 		sym->st_shndx = (_bfd_elf_section_from_bfd_section
   10197  1.1  christos 				 (output_bfd, htab->glink->output_section));
   10198  1.1  christos 		sym->st_value = (ent->glink_offset
   10199  1.1  christos 				 + htab->glink->output_offset
   10200  1.3  christos 				 + htab->glink->output_section->vma);
   10201  1.1  christos 	      }
   10202  1.1  christos 	    doneone = TRUE;
   10203  1.1  christos 	  }
   10204  1.1  christos 
   10205  1.1  christos 	if (htab->plt_type == PLT_NEW
   10206  1.1  christos 	    || !htab->elf.dynamic_sections_created
   10207  1.1  christos 	    || h->dynindx == -1)
   10208  1.1  christos 	  {
   10209  1.1  christos 	    unsigned char *p;
   10210  1.1  christos 	    asection *splt = htab->plt;
   10211  1.1  christos 	    if (!htab->elf.dynamic_sections_created
   10212  1.1  christos 		|| h->dynindx == -1)
   10213  1.1  christos 	      splt = htab->iplt;
   10214  1.1  christos 
   10215  1.1  christos 	    p = (unsigned char *) htab->glink->contents + ent->glink_offset;
   10216  1.1  christos 
   10217  1.1  christos 	    if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt)
   10218  1.1  christos 	      {
   10219  1.1  christos 		bfd_put_32 (output_bfd, LWZ_11_3, p);
   10220  1.1  christos 		p += 4;
   10221  1.1  christos 		bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
   10222  1.6  christos 		p += 4;
   10223  1.1  christos 		bfd_put_32 (output_bfd, MR_0_3, p);
   10224  1.1  christos 		p += 4;
   10225  1.1  christos 		bfd_put_32 (output_bfd, CMPWI_11_0, p);
   10226  1.1  christos 		p += 4;
   10227  1.1  christos 		bfd_put_32 (output_bfd, ADD_3_12_2, p);
   10228  1.1  christos 		p += 4;
   10229  1.1  christos 		bfd_put_32 (output_bfd, BEQLR, p);
   10230  1.1  christos 		p += 4;
   10231  1.1  christos 		bfd_put_32 (output_bfd, MR_3_0, p);
   10232  1.1  christos 		p += 4;
   10233  1.1  christos 		bfd_put_32 (output_bfd, NOP, p);
   10234  1.1  christos 		p += 4;
   10235  1.1  christos 	      }
   10236  1.1  christos 
   10237  1.1  christos 	    write_glink_stub (ent, splt, p, info);
   10238  1.1  christos 
   10239  1.1  christos 	    if (!bfd_link_pic (info))
   10240  1.1  christos 	      /* We only need one non-PIC glink stub.  */
   10241  1.1  christos 	      break;
   10242  1.1  christos 	  }
   10243  1.1  christos 	else
   10244  1.1  christos 	  break;
   10245  1.1  christos       }
   10246  1.1  christos 
   10247  1.1  christos   if (h->needs_copy)
   10248  1.1  christos     {
   10249  1.1  christos       asection *s;
   10250  1.1  christos       Elf_Internal_Rela rela;
   10251  1.1  christos       bfd_byte *loc;
   10252  1.1  christos 
   10253  1.1  christos       /* This symbols needs a copy reloc.  Set it up.  */
   10254  1.1  christos 
   10255  1.1  christos #ifdef DEBUG
   10256  1.1  christos       fprintf (stderr, ", copy");
   10257  1.1  christos #endif
   10258  1.1  christos 
   10259  1.1  christos       BFD_ASSERT (h->dynindx != -1);
   10260  1.1  christos 
   10261  1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   10262  1.1  christos 	s = htab->relsbss;
   10263  1.1  christos       else
   10264  1.1  christos 	s = htab->relbss;
   10265  1.1  christos       BFD_ASSERT (s != NULL);
   10266  1.1  christos 
   10267  1.1  christos       rela.r_offset = SYM_VAL (h);
   10268  1.1  christos       rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
   10269  1.1  christos       rela.r_addend = 0;
   10270  1.1  christos       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
   10271  1.1  christos       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10272  1.1  christos     }
   10273  1.1  christos 
   10274  1.1  christos #ifdef DEBUG
   10275  1.1  christos   fprintf (stderr, "\n");
   10276  1.1  christos #endif
   10277  1.1  christos 
   10278  1.1  christos   return TRUE;
   10279  1.1  christos }
   10280  1.1  christos 
   10281  1.1  christos static enum elf_reloc_type_class
   10283  1.1  christos ppc_elf_reloc_type_class (const struct bfd_link_info *info,
   10284  1.1  christos 			  const asection *rel_sec,
   10285  1.1  christos 			  const Elf_Internal_Rela *rela)
   10286  1.1  christos {
   10287  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   10288  1.1  christos 
   10289  1.1  christos   if (rel_sec == htab->reliplt)
   10290  1.1  christos     return reloc_class_ifunc;
   10291  1.1  christos 
   10292  1.1  christos   switch (ELF32_R_TYPE (rela->r_info))
   10293  1.1  christos     {
   10294  1.1  christos     case R_PPC_RELATIVE:
   10295  1.1  christos       return reloc_class_relative;
   10296  1.1  christos     case R_PPC_JMP_SLOT:
   10297  1.1  christos       return reloc_class_plt;
   10298  1.1  christos     case R_PPC_COPY:
   10299  1.1  christos       return reloc_class_copy;
   10300  1.1  christos     default:
   10301  1.1  christos       return reloc_class_normal;
   10302  1.1  christos     }
   10303  1.1  christos }
   10304  1.1  christos 
   10305  1.1  christos /* Finish up the dynamic sections.  */
   10307  1.1  christos 
   10308  1.1  christos static bfd_boolean
   10309  1.1  christos ppc_elf_finish_dynamic_sections (bfd *output_bfd,
   10310  1.1  christos 				 struct bfd_link_info *info)
   10311  1.1  christos {
   10312  1.1  christos   asection *sdyn;
   10313  1.1  christos   asection *splt;
   10314  1.1  christos   struct ppc_elf_link_hash_table *htab;
   10315  1.1  christos   bfd_vma got;
   10316  1.1  christos   bfd *dynobj;
   10317  1.1  christos   bfd_boolean ret = TRUE;
   10318  1.1  christos 
   10319  1.1  christos #ifdef DEBUG
   10320  1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
   10321  1.1  christos #endif
   10322  1.1  christos 
   10323  1.1  christos   htab = ppc_elf_hash_table (info);
   10324  1.1  christos   dynobj = elf_hash_table (info)->dynobj;
   10325  1.1  christos   sdyn = bfd_get_linker_section (dynobj, ".dynamic");
   10326  1.1  christos   if (htab->is_vxworks)
   10327  1.1  christos     splt = bfd_get_linker_section (dynobj, ".plt");
   10328  1.1  christos   else
   10329  1.1  christos     splt = NULL;
   10330  1.1  christos 
   10331  1.1  christos   got = 0;
   10332  1.1  christos   if (htab->elf.hgot != NULL)
   10333  1.1  christos     got = SYM_VAL (htab->elf.hgot);
   10334  1.1  christos 
   10335  1.1  christos   if (htab->elf.dynamic_sections_created)
   10336  1.1  christos     {
   10337  1.1  christos       Elf32_External_Dyn *dyncon, *dynconend;
   10338  1.1  christos 
   10339  1.1  christos       BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
   10340  1.1  christos 
   10341  1.1  christos       dyncon = (Elf32_External_Dyn *) sdyn->contents;
   10342  1.1  christos       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
   10343  1.1  christos       for (; dyncon < dynconend; dyncon++)
   10344  1.1  christos 	{
   10345  1.1  christos 	  Elf_Internal_Dyn dyn;
   10346  1.1  christos 	  asection *s;
   10347  1.1  christos 
   10348  1.1  christos 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
   10349  1.1  christos 
   10350  1.1  christos 	  switch (dyn.d_tag)
   10351  1.1  christos 	    {
   10352  1.1  christos 	    case DT_PLTGOT:
   10353  1.1  christos 	      if (htab->is_vxworks)
   10354  1.1  christos 		s = htab->sgotplt;
   10355  1.1  christos 	      else
   10356  1.1  christos 		s = htab->plt;
   10357  1.1  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   10358  1.1  christos 	      break;
   10359  1.1  christos 
   10360  1.1  christos 	    case DT_PLTRELSZ:
   10361  1.1  christos 	      dyn.d_un.d_val = htab->relplt->size;
   10362  1.1  christos 	      break;
   10363  1.1  christos 
   10364  1.1  christos 	    case DT_JMPREL:
   10365  1.1  christos 	      s = htab->relplt;
   10366  1.1  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   10367  1.1  christos 	      break;
   10368  1.1  christos 
   10369  1.1  christos 	    case DT_PPC_GOT:
   10370  1.1  christos 	      dyn.d_un.d_ptr = got;
   10371  1.1  christos 	      break;
   10372  1.1  christos 
   10373  1.1  christos 	    case DT_RELASZ:
   10374  1.1  christos 	      if (htab->is_vxworks)
   10375  1.1  christos 		{
   10376  1.1  christos 		  if (htab->relplt)
   10377  1.1  christos 		    dyn.d_un.d_ptr -= htab->relplt->size;
   10378  1.1  christos 		  break;
   10379  1.1  christos 		}
   10380  1.1  christos 	      continue;
   10381  1.1  christos 
   10382  1.1  christos 	    default:
   10383  1.1  christos 	      if (htab->is_vxworks
   10384  1.1  christos 		  && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
   10385  1.1  christos 		break;
   10386  1.1  christos 	      continue;
   10387  1.1  christos 	    }
   10388  1.1  christos 
   10389  1.1  christos 	  bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   10390  1.1  christos 	}
   10391  1.1  christos     }
   10392  1.1  christos 
   10393  1.1  christos   if (htab->got != NULL)
   10394  1.1  christos     {
   10395  1.1  christos       if (htab->elf.hgot->root.u.def.section == htab->got
   10396  1.1  christos 	  || htab->elf.hgot->root.u.def.section == htab->sgotplt)
   10397  1.1  christos 	{
   10398  1.1  christos 	  unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
   10399  1.1  christos 
   10400  1.1  christos 	  p += htab->elf.hgot->root.u.def.value;
   10401  1.1  christos 	  if (htab->plt_type == PLT_OLD)
   10402  1.1  christos 	    {
   10403  1.1  christos 	      /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
   10404  1.1  christos 		 so that a function can easily find the address of
   10405  1.1  christos 		 _GLOBAL_OFFSET_TABLE_.  */
   10406  1.1  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
   10407  1.1  christos 			  < htab->elf.hgot->root.u.def.section->size);
   10408  1.1  christos 	      bfd_put_32 (output_bfd, 0x4e800021, p - 4);
   10409  1.1  christos 	    }
   10410  1.1  christos 
   10411  1.1  christos 	  if (sdyn != NULL)
   10412  1.1  christos 	    {
   10413  1.1  christos 	      bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
   10414  1.1  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value
   10415  1.1  christos 			  < htab->elf.hgot->root.u.def.section->size);
   10416  1.1  christos 	      bfd_put_32 (output_bfd, val, p);
   10417  1.6  christos 	    }
   10418  1.1  christos 	}
   10419  1.1  christos       else
   10420  1.1  christos 	{
   10421  1.6  christos 	  info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
   10422  1.1  christos 				  htab->elf.hgot->root.root.string,
   10423  1.1  christos 				  (htab->sgotplt != NULL
   10424  1.1  christos 				   ? htab->sgotplt->name : htab->got->name));
   10425  1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   10426  1.1  christos 	  ret = FALSE;
   10427  1.1  christos 	}
   10428  1.1  christos 
   10429  1.1  christos       elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
   10430  1.1  christos     }
   10431  1.1  christos 
   10432  1.1  christos   /* Fill in the first entry in the VxWorks procedure linkage table.  */
   10433  1.1  christos   if (splt && splt->size > 0)
   10434  1.1  christos     {
   10435  1.1  christos       /* Use the right PLT. */
   10436  1.1  christos       const bfd_vma *plt_entry = (bfd_link_pic (info)
   10437  1.1  christos 				  ? ppc_elf_vxworks_pic_plt0_entry
   10438  1.1  christos 				  : ppc_elf_vxworks_plt0_entry);
   10439  1.1  christos 
   10440  1.1  christos       if (!bfd_link_pic (info))
   10441  1.1  christos 	{
   10442  1.6  christos 	  bfd_vma got_value = SYM_VAL (htab->elf.hgot);
   10443  1.1  christos 
   10444  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
   10445  1.1  christos 		      splt->contents +  0);
   10446  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
   10447  1.1  christos 		      splt->contents +  4);
   10448  1.1  christos 	}
   10449  1.1  christos       else
   10450  1.1  christos 	{
   10451  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[0], splt->contents +  0);
   10452  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1], splt->contents +  4);
   10453  1.1  christos 	}
   10454  1.1  christos       bfd_put_32 (output_bfd, plt_entry[2], splt->contents +  8);
   10455  1.1  christos       bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
   10456  1.1  christos       bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
   10457  1.1  christos       bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
   10458  1.1  christos       bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
   10459  1.1  christos       bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
   10460  1.1  christos 
   10461  1.1  christos       if (! bfd_link_pic (info))
   10462  1.1  christos 	{
   10463  1.1  christos 	  Elf_Internal_Rela rela;
   10464  1.1  christos 	  bfd_byte *loc;
   10465  1.1  christos 
   10466  1.1  christos 	  loc = htab->srelplt2->contents;
   10467  1.1  christos 
   10468  1.1  christos 	  /* Output the @ha relocation for the first instruction.  */
   10469  1.1  christos 	  rela.r_offset = (htab->plt->output_section->vma
   10470  1.1  christos 			   + htab->plt->output_offset
   10471  1.1  christos 			   + 2);
   10472  1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   10473  1.1  christos 	  rela.r_addend = 0;
   10474  1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10475  1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   10476  1.1  christos 
   10477  1.1  christos 	  /* Output the @l relocation for the second instruction.  */
   10478  1.1  christos 	  rela.r_offset = (htab->plt->output_section->vma
   10479  1.1  christos 			   + htab->plt->output_offset
   10480  1.1  christos 			   + 6);
   10481  1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   10482  1.1  christos 	  rela.r_addend = 0;
   10483  1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   10484  1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   10485  1.1  christos 
   10486  1.1  christos 	  /* Fix up the remaining relocations.  They may have the wrong
   10487  1.1  christos 	     symbol index for _G_O_T_ or _P_L_T_ depending on the order
   10488  1.1  christos 	     in which symbols were output.  */
   10489  1.1  christos 	  while (loc < htab->srelplt2->contents + htab->srelplt2->size)
   10490  1.1  christos 	    {
   10491  1.1  christos 	      Elf_Internal_Rela rel;
   10492  1.1  christos 
   10493  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10494  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   10495  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10496  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10497  1.1  christos 
   10498  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10499  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   10500  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10501  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10502  1.1  christos 
   10503  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   10504  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
   10505  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   10506  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   10507  1.1  christos 	    }
   10508  1.1  christos 	}
   10509  1.1  christos     }
   10510  1.1  christos 
   10511  1.1  christos   if (htab->glink != NULL
   10512  1.1  christos       && htab->glink->contents != NULL
   10513  1.1  christos       && htab->elf.dynamic_sections_created)
   10514  1.1  christos     {
   10515  1.1  christos       unsigned char *p;
   10516  1.1  christos       unsigned char *endp;
   10517  1.1  christos       bfd_vma res0;
   10518  1.1  christos       unsigned int i;
   10519  1.1  christos 
   10520  1.1  christos       /*
   10521  1.1  christos        * PIC glink code is the following:
   10522  1.1  christos        *
   10523  1.1  christos        * # ith PLT code stub.
   10524  1.1  christos        *   addis 11,30,(plt+(i-1)*4-got)@ha
   10525  1.1  christos        *   lwz 11,(plt+(i-1)*4-got)@l(11)
   10526  1.1  christos        *   mtctr 11
   10527  1.1  christos        *   bctr
   10528  1.1  christos        *
   10529  1.1  christos        * # A table of branches, one for each plt entry.
   10530  1.1  christos        * # The idea is that the plt call stub loads ctr and r11 with these
   10531  1.1  christos        * # addresses, so (r11 - res_0) gives the plt index * 4.
   10532  1.1  christos        * res_0:	b PLTresolve
   10533  1.1  christos        * res_1:	b PLTresolve
   10534  1.1  christos        * .
   10535  1.1  christos        * # Some number of entries towards the end can be nops
   10536  1.1  christos        * res_n_m3: nop
   10537  1.1  christos        * res_n_m2: nop
   10538  1.1  christos        * res_n_m1:
   10539  1.1  christos        *
   10540  1.1  christos        * PLTresolve:
   10541  1.1  christos        *    addis 11,11,(1f-res_0)@ha
   10542  1.1  christos        *    mflr 0
   10543  1.1  christos        *    bcl 20,31,1f
   10544  1.1  christos        * 1: addi 11,11,(1b-res_0)@l
   10545  1.1  christos        *    mflr 12
   10546  1.1  christos        *    mtlr 0
   10547  1.1  christos        *    sub 11,11,12                # r11 = index * 4
   10548  1.1  christos        *    addis 12,12,(got+4-1b)@ha
   10549  1.1  christos        *    lwz 0,(got+4-1b)@l(12)      # got[1] address of dl_runtime_resolve
   10550  1.1  christos        *    lwz 12,(got+8-1b)@l(12)     # got[2] contains the map address
   10551  1.1  christos        *    mtctr 0
   10552  1.1  christos        *    add 0,11,11
   10553  1.1  christos        *    add 11,0,11                 # r11 = index * 12 = reloc offset.
   10554  1.1  christos        *    bctr
   10555  1.1  christos        */
   10556  1.1  christos       static const unsigned int pic_plt_resolve[] =
   10557  1.1  christos 	{
   10558  1.1  christos 	  ADDIS_11_11,
   10559  1.1  christos 	  MFLR_0,
   10560  1.1  christos 	  BCL_20_31,
   10561  1.1  christos 	  ADDI_11_11,
   10562  1.1  christos 	  MFLR_12,
   10563  1.1  christos 	  MTLR_0,
   10564  1.1  christos 	  SUB_11_11_12,
   10565  1.1  christos 	  ADDIS_12_12,
   10566  1.1  christos 	  LWZ_0_12,
   10567  1.1  christos 	  LWZ_12_12,
   10568  1.1  christos 	  MTCTR_0,
   10569  1.1  christos 	  ADD_0_11_11,
   10570  1.1  christos 	  ADD_11_0_11,
   10571  1.1  christos 	  BCTR,
   10572  1.1  christos 	  NOP,
   10573  1.1  christos 	  NOP
   10574  1.1  christos 	};
   10575  1.1  christos 
   10576  1.1  christos       /*
   10577  1.1  christos        * Non-PIC glink code is a little simpler.
   10578  1.1  christos        *
   10579  1.1  christos        * # ith PLT code stub.
   10580  1.1  christos        *   lis 11,(plt+(i-1)*4)@ha
   10581  1.1  christos        *   lwz 11,(plt+(i-1)*4)@l(11)
   10582  1.1  christos        *   mtctr 11
   10583  1.1  christos        *   bctr
   10584  1.1  christos        *
   10585  1.1  christos        * The branch table is the same, then comes
   10586  1.1  christos        *
   10587  1.1  christos        * PLTresolve:
   10588  1.1  christos        *    lis 12,(got+4)@ha
   10589  1.1  christos        *    addis 11,11,(-res_0)@ha
   10590  1.1  christos        *    lwz 0,(got+4)@l(12)         # got[1] address of dl_runtime_resolve
   10591  1.1  christos        *    addi 11,11,(-res_0)@l       # r11 = index * 4
   10592  1.1  christos        *    mtctr 0
   10593  1.1  christos        *    add 0,11,11
   10594  1.1  christos        *    lwz 12,(got+8)@l(12)        # got[2] contains the map address
   10595  1.1  christos        *    add 11,0,11                 # r11 = index * 12 = reloc offset.
   10596  1.1  christos        *    bctr
   10597  1.1  christos        */
   10598  1.1  christos       static const unsigned int plt_resolve[] =
   10599  1.1  christos 	{
   10600  1.1  christos 	  LIS_12,
   10601  1.1  christos 	  ADDIS_11_11,
   10602  1.1  christos 	  LWZ_0_12,
   10603  1.1  christos 	  ADDI_11_11,
   10604  1.1  christos 	  MTCTR_0,
   10605  1.1  christos 	  ADD_0_11_11,
   10606  1.1  christos 	  LWZ_12_12,
   10607  1.1  christos 	  ADD_11_0_11,
   10608  1.1  christos 	  BCTR,
   10609  1.1  christos 	  NOP,
   10610  1.3  christos 	  NOP,
   10611  1.1  christos 	  NOP,
   10612  1.1  christos 	  NOP,
   10613  1.1  christos 	  NOP,
   10614  1.1  christos 	  NOP,
   10615  1.1  christos 	  NOP
   10616  1.1  christos 	};
   10617  1.1  christos 
   10618  1.1  christos       if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
   10619  1.1  christos 	abort ();
   10620  1.1  christos       if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
   10621  1.1  christos 	abort ();
   10622  1.1  christos 
   10623  1.1  christos       /* Build the branch table, one for each plt entry (less one),
   10624  1.1  christos 	 and perhaps some padding.  */
   10625  1.3  christos       p = htab->glink->contents;
   10626  1.3  christos       p += htab->glink_pltresolve;
   10627  1.3  christos       endp = htab->glink->contents;
   10628  1.3  christos       endp += htab->glink->size - GLINK_PLTRESOLVE;
   10629  1.3  christos       while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
   10630  1.3  christos 	{
   10631  1.3  christos 	  bfd_put_32 (output_bfd, B + endp - p, p);
   10632  1.3  christos 	  p += 4;
   10633  1.3  christos 	}
   10634  1.3  christos       while (p < endp)
   10635  1.3  christos 	{
   10636  1.3  christos 	  bfd_put_32 (output_bfd, NOP, p);
   10637  1.3  christos 	  p += 4;
   10638  1.3  christos 	}
   10639  1.3  christos 
   10640  1.3  christos       res0 = (htab->glink_pltresolve
   10641  1.3  christos 	      + htab->glink->output_section->vma
   10642  1.3  christos 	      + htab->glink->output_offset);
   10643  1.3  christos 
   10644  1.3  christos       if (htab->params->ppc476_workaround)
   10645  1.3  christos 	{
   10646  1.3  christos 	  /* Ensure that a call stub at the end of a page doesn't
   10647  1.3  christos 	     result in prefetch over the end of the page into the
   10648  1.3  christos 	     glink branch table.  */
   10649  1.3  christos 	  bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   10650  1.3  christos 	  bfd_vma page_addr;
   10651  1.3  christos 	  bfd_vma glink_start = (htab->glink->output_section->vma
   10652  1.3  christos 				 + htab->glink->output_offset);
   10653  1.3  christos 
   10654  1.3  christos 	  for (page_addr = res0 & -pagesize;
   10655  1.3  christos 	       page_addr > glink_start;
   10656  1.3  christos 	       page_addr -= pagesize)
   10657  1.3  christos 	    {
   10658  1.1  christos 	      /* We have a plt call stub that may need fixing.  */
   10659  1.6  christos 	      bfd_byte *loc;
   10660  1.1  christos 	      unsigned int insn;
   10661  1.1  christos 
   10662  1.1  christos 	      loc = htab->glink->contents + page_addr - 4 - glink_start;
   10663  1.1  christos 	      insn = bfd_get_32 (output_bfd, loc);
   10664  1.1  christos 	      if (insn == BCTR)
   10665  1.3  christos 		{
   10666  1.3  christos 		  /* By alignment, we know that there must be at least
   10667  1.3  christos 		     one other call stub before this one.  */
   10668  1.3  christos 		  insn = bfd_get_32 (output_bfd, loc - 16);
   10669  1.3  christos 		  if (insn == BCTR)
   10670  1.1  christos 		    bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
   10671  1.1  christos 		  else
   10672  1.1  christos 		    bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
   10673  1.1  christos 		}
   10674  1.1  christos 	    }
   10675  1.1  christos 	}
   10676  1.1  christos 
   10677  1.1  christos       /* Last comes the PLTresolve stub.  */
   10678  1.1  christos       if (bfd_link_pic (info))
   10679  1.1  christos 	{
   10680  1.1  christos 	  bfd_vma bcl;
   10681  1.1  christos 
   10682  1.1  christos 	  for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
   10683  1.1  christos 	    {
   10684  1.1  christos 	      unsigned int insn = pic_plt_resolve[i];
   10685  1.1  christos 
   10686  1.1  christos 	      if (htab->params->ppc476_workaround && insn == NOP)
   10687  1.1  christos 		insn = BA + 0;
   10688  1.1  christos 	      bfd_put_32 (output_bfd, insn, p);
   10689  1.1  christos 	      p += 4;
   10690  1.1  christos 	    }
   10691  1.1  christos 	  p -= 4 * ARRAY_SIZE (pic_plt_resolve);
   10692  1.1  christos 
   10693  1.1  christos 	  bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
   10694  1.1  christos 		 + htab->glink->output_section->vma
   10695  1.1  christos 		 + htab->glink->output_offset);
   10696  1.1  christos 
   10697  1.1  christos 	  bfd_put_32 (output_bfd,
   10698  1.1  christos 		      ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
   10699  1.1  christos 	  bfd_put_32 (output_bfd,
   10700  1.1  christos 		      ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
   10701  1.1  christos 	  bfd_put_32 (output_bfd,
   10702  1.1  christos 		      ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
   10703  1.3  christos 	  if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
   10704  1.3  christos 	    {
   10705  1.3  christos 	      bfd_put_32 (output_bfd,
   10706  1.3  christos 			  LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
   10707  1.3  christos 	      bfd_put_32 (output_bfd,
   10708  1.1  christos 			  LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
   10709  1.1  christos 	    }
   10710  1.1  christos 	  else
   10711  1.1  christos 	    {
   10712  1.1  christos 	      bfd_put_32 (output_bfd,
   10713  1.1  christos 			  LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
   10714  1.1  christos 	      bfd_put_32 (output_bfd,
   10715  1.1  christos 			  LWZ_12_12 + 4, p + 9*4);
   10716  1.1  christos 	    }
   10717  1.1  christos 	}
   10718  1.1  christos       else
   10719  1.1  christos 	{
   10720  1.1  christos 	  for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
   10721  1.1  christos 	    {
   10722  1.1  christos 	      unsigned int insn = plt_resolve[i];
   10723  1.1  christos 
   10724  1.1  christos 	      if (htab->params->ppc476_workaround && insn == NOP)
   10725  1.1  christos 		insn = BA + 0;
   10726  1.1  christos 	      bfd_put_32 (output_bfd, insn, p);
   10727  1.1  christos 	      p += 4;
   10728  1.1  christos 	    }
   10729  1.1  christos 	  p -= 4 * ARRAY_SIZE (plt_resolve);
   10730  1.1  christos 
   10731  1.1  christos 	  bfd_put_32 (output_bfd,
   10732  1.1  christos 		      LIS_12 + PPC_HA (got + 4), p + 0*4);
   10733  1.1  christos 	  bfd_put_32 (output_bfd,
   10734  1.1  christos 		      ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
   10735  1.1  christos 	  bfd_put_32 (output_bfd,
   10736  1.1  christos 		      ADDI_11_11 + PPC_LO (-res0), p + 3*4);
   10737  1.1  christos 	  if (PPC_HA (got + 4) == PPC_HA (got + 8))
   10738  1.1  christos 	    {
   10739  1.1  christos 	      bfd_put_32 (output_bfd,
   10740  1.1  christos 			  LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
   10741  1.1  christos 	      bfd_put_32 (output_bfd,
   10742  1.1  christos 			  LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
   10743  1.1  christos 	    }
   10744  1.1  christos 	  else
   10745  1.1  christos 	    {
   10746  1.1  christos 	      bfd_put_32 (output_bfd,
   10747  1.1  christos 			  LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
   10748  1.1  christos 	      bfd_put_32 (output_bfd,
   10749  1.1  christos 			  LWZ_12_12 + 4, p + 6*4);
   10750  1.1  christos 	    }
   10751  1.1  christos 	}
   10752  1.1  christos     }
   10753  1.1  christos 
   10754  1.1  christos   if (htab->glink_eh_frame != NULL
   10755  1.1  christos       && htab->glink_eh_frame->contents != NULL)
   10756  1.1  christos     {
   10757  1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   10758  1.1  christos       bfd_vma val;
   10759  1.1  christos 
   10760  1.1  christos       p += sizeof (glink_eh_frame_cie);
   10761  1.1  christos       /* FDE length.  */
   10762  1.1  christos       p += 4;
   10763  1.1  christos       /* CIE pointer.  */
   10764  1.3  christos       p += 4;
   10765  1.1  christos       /* Offset to .glink.  */
   10766  1.3  christos       val = (htab->glink->output_section->vma
   10767  1.1  christos 	     + htab->glink->output_offset);
   10768  1.1  christos       val -= (htab->glink_eh_frame->output_section->vma
   10769  1.1  christos 	      + htab->glink_eh_frame->output_offset);
   10770  1.1  christos       val -= p - htab->glink_eh_frame->contents;
   10771  1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   10772  1.1  christos 
   10773  1.3  christos       if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
   10774  1.1  christos 	  && !_bfd_elf_write_section_eh_frame (output_bfd, info,
   10775  1.1  christos 					       htab->glink_eh_frame,
   10776  1.3  christos 					       htab->glink_eh_frame->contents))
   10777  1.1  christos 	return FALSE;
   10778  1.1  christos     }
   10779  1.1  christos 
   10780  1.1  christos   return ret;
   10781  1.1  christos }
   10782  1.1  christos 
   10783  1.1  christos #define TARGET_LITTLE_SYM	powerpc_elf32_le_vec
   10785  1.1  christos #define TARGET_LITTLE_NAME	"elf32-powerpcle"
   10786  1.1  christos #define TARGET_BIG_SYM		powerpc_elf32_vec
   10787  1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc"
   10788  1.1  christos #define ELF_ARCH		bfd_arch_powerpc
   10789  1.1  christos #define ELF_TARGET_ID		PPC32_ELF_DATA
   10790  1.1  christos #define ELF_MACHINE_CODE	EM_PPC
   10791  1.1  christos #ifdef __QNXTARGET__
   10792  1.1  christos #define ELF_MAXPAGESIZE		0x1000
   10793  1.3  christos #define ELF_COMMONPAGESIZE	0x1000
   10794  1.1  christos #else
   10795  1.1  christos #define ELF_MAXPAGESIZE		0x10000
   10796  1.1  christos #define ELF_COMMONPAGESIZE	0x10000
   10797  1.1  christos #endif
   10798  1.1  christos #define ELF_MINPAGESIZE		0x1000
   10799  1.1  christos #define elf_info_to_howto	ppc_elf_info_to_howto
   10800  1.1  christos 
   10801  1.1  christos #ifdef  EM_CYGNUS_POWERPC
   10802  1.1  christos #define ELF_MACHINE_ALT1	EM_CYGNUS_POWERPC
   10803  1.1  christos #endif
   10804  1.1  christos 
   10805  1.1  christos #ifdef EM_PPC_OLD
   10806  1.1  christos #define ELF_MACHINE_ALT2	EM_PPC_OLD
   10807  1.1  christos #endif
   10808  1.1  christos 
   10809  1.1  christos #define elf_backend_plt_not_loaded	1
   10810  1.1  christos #define elf_backend_can_gc_sections	1
   10811  1.1  christos #define elf_backend_can_refcount	1
   10812  1.1  christos #define elf_backend_rela_normal		1
   10813  1.1  christos #define elf_backend_caches_rawsize	1
   10814  1.1  christos 
   10815  1.1  christos #define bfd_elf32_mkobject			ppc_elf_mkobject
   10816  1.1  christos #define bfd_elf32_bfd_merge_private_bfd_data	ppc_elf_merge_private_bfd_data
   10817  1.1  christos #define bfd_elf32_bfd_relax_section		ppc_elf_relax_section
   10818  1.1  christos #define bfd_elf32_bfd_reloc_type_lookup		ppc_elf_reloc_type_lookup
   10819  1.1  christos #define bfd_elf32_bfd_reloc_name_lookup		ppc_elf_reloc_name_lookup
   10820  1.1  christos #define bfd_elf32_bfd_set_private_flags		ppc_elf_set_private_flags
   10821  1.1  christos #define bfd_elf32_bfd_link_hash_table_create	ppc_elf_link_hash_table_create
   10822  1.1  christos #define bfd_elf32_get_synthetic_symtab		ppc_elf_get_synthetic_symtab
   10823  1.1  christos 
   10824  1.1  christos #define elf_backend_object_p			ppc_elf_object_p
   10825  1.1  christos #define elf_backend_gc_mark_hook		ppc_elf_gc_mark_hook
   10826  1.1  christos #define elf_backend_gc_sweep_hook		ppc_elf_gc_sweep_hook
   10827  1.1  christos #define elf_backend_section_from_shdr		ppc_elf_section_from_shdr
   10828  1.1  christos #define elf_backend_relocate_section		ppc_elf_relocate_section
   10829  1.1  christos #define elf_backend_create_dynamic_sections	ppc_elf_create_dynamic_sections
   10830  1.1  christos #define elf_backend_check_relocs		ppc_elf_check_relocs
   10831  1.1  christos #define elf_backend_copy_indirect_symbol	ppc_elf_copy_indirect_symbol
   10832  1.1  christos #define elf_backend_adjust_dynamic_symbol	ppc_elf_adjust_dynamic_symbol
   10833  1.1  christos #define elf_backend_add_symbol_hook		ppc_elf_add_symbol_hook
   10834  1.1  christos #define elf_backend_size_dynamic_sections	ppc_elf_size_dynamic_sections
   10835  1.1  christos #define elf_backend_hash_symbol			ppc_elf_hash_symbol
   10836  1.1  christos #define elf_backend_finish_dynamic_symbol	ppc_elf_finish_dynamic_symbol
   10837  1.1  christos #define elf_backend_finish_dynamic_sections	ppc_elf_finish_dynamic_sections
   10838  1.1  christos #define elf_backend_fake_sections		ppc_elf_fake_sections
   10839  1.1  christos #define elf_backend_additional_program_headers	ppc_elf_additional_program_headers
   10840  1.1  christos #define elf_backend_modify_segment_map     	ppc_elf_modify_segment_map
   10841  1.1  christos #define elf_backend_grok_prstatus		ppc_elf_grok_prstatus
   10842  1.1  christos #define elf_backend_grok_psinfo			ppc_elf_grok_psinfo
   10843  1.3  christos #define elf_backend_write_core_note		ppc_elf_write_core_note
   10844  1.1  christos #define elf_backend_reloc_type_class		ppc_elf_reloc_type_class
   10845  1.1  christos #define elf_backend_begin_write_processing	ppc_elf_begin_write_processing
   10846  1.1  christos #define elf_backend_final_write_processing	ppc_elf_final_write_processing
   10847  1.1  christos #define elf_backend_write_section		ppc_elf_write_section
   10848  1.1  christos #define elf_backend_get_sec_type_attr		ppc_elf_get_sec_type_attr
   10849  1.1  christos #define elf_backend_plt_sym_val			ppc_elf_plt_sym_val
   10850  1.1  christos #define elf_backend_action_discarded		ppc_elf_action_discarded
   10851  1.1  christos #define elf_backend_init_index_section		_bfd_elf_init_1_index_section
   10852  1.1  christos #define elf_backend_lookup_section_flags_hook	ppc_elf_lookup_section_flags
   10853  1.1  christos #define elf_backend_section_processing		ppc_elf_section_processing
   10854  1.1  christos 
   10855  1.1  christos #include "elf32-target.h"
   10856  1.1  christos 
   10857  1.1  christos /* FreeBSD Target */
   10858  1.1  christos 
   10859  1.1  christos #undef  TARGET_LITTLE_SYM
   10860  1.1  christos #undef  TARGET_LITTLE_NAME
   10861  1.3  christos 
   10862  1.1  christos #undef  TARGET_BIG_SYM
   10863  1.1  christos #define TARGET_BIG_SYM  powerpc_elf32_fbsd_vec
   10864  1.1  christos #undef  TARGET_BIG_NAME
   10865  1.1  christos #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
   10866  1.1  christos 
   10867  1.1  christos #undef  ELF_OSABI
   10868  1.1  christos #define ELF_OSABI	ELFOSABI_FREEBSD
   10869  1.1  christos 
   10870  1.1  christos #undef  elf32_bed
   10871  1.1  christos #define elf32_bed	elf32_powerpc_fbsd_bed
   10872  1.1  christos 
   10873  1.1  christos #include "elf32-target.h"
   10874  1.1  christos 
   10875  1.1  christos /* VxWorks Target */
   10876  1.1  christos 
   10877  1.1  christos #undef TARGET_LITTLE_SYM
   10878  1.1  christos #undef TARGET_LITTLE_NAME
   10879  1.1  christos 
   10880  1.1  christos #undef TARGET_BIG_SYM
   10881  1.1  christos #define TARGET_BIG_SYM		powerpc_elf32_vxworks_vec
   10882  1.1  christos #undef TARGET_BIG_NAME
   10883  1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc-vxworks"
   10884  1.1  christos 
   10885  1.1  christos #undef  ELF_OSABI
   10886  1.1  christos 
   10887  1.1  christos /* VxWorks uses the elf default section flags for .plt.  */
   10888  1.1  christos static const struct bfd_elf_special_section *
   10889  1.1  christos ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
   10890  1.1  christos {
   10891  1.1  christos   if (sec->name == NULL)
   10892  1.1  christos     return NULL;
   10893  1.1  christos 
   10894  1.1  christos   if (strcmp (sec->name, ".plt") == 0)
   10895  1.1  christos     return _bfd_elf_get_sec_type_attr (abfd, sec);
   10896  1.1  christos 
   10897  1.1  christos   return ppc_elf_get_sec_type_attr (abfd, sec);
   10898  1.1  christos }
   10899  1.1  christos 
   10900  1.1  christos /* Like ppc_elf_link_hash_table_create, but overrides
   10901  1.1  christos    appropriately for VxWorks.  */
   10902  1.1  christos static struct bfd_link_hash_table *
   10903  1.1  christos ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
   10904  1.1  christos {
   10905  1.1  christos   struct bfd_link_hash_table *ret;
   10906  1.1  christos 
   10907  1.1  christos   ret = ppc_elf_link_hash_table_create (abfd);
   10908  1.1  christos   if (ret)
   10909  1.1  christos     {
   10910  1.1  christos       struct ppc_elf_link_hash_table *htab
   10911  1.1  christos         = (struct ppc_elf_link_hash_table *)ret;
   10912  1.1  christos       htab->is_vxworks = 1;
   10913  1.1  christos       htab->plt_type = PLT_VXWORKS;
   10914  1.1  christos       htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
   10915  1.1  christos       htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
   10916  1.1  christos       htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
   10917  1.1  christos     }
   10918  1.1  christos   return ret;
   10919  1.1  christos }
   10920  1.1  christos 
   10921  1.1  christos /* Tweak magic VxWorks symbols as they are loaded.  */
   10922  1.1  christos static bfd_boolean
   10923  1.1  christos ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
   10924  1.1  christos 				 struct bfd_link_info *info,
   10925  1.1  christos 				 Elf_Internal_Sym *sym,
   10926  1.1  christos 				 const char **namep ATTRIBUTE_UNUSED,
   10927  1.1  christos 				 flagword *flagsp ATTRIBUTE_UNUSED,
   10928  1.1  christos 				 asection **secp,
   10929  1.1  christos 				 bfd_vma *valp)
   10930  1.1  christos {
   10931  1.1  christos   if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
   10932  1.1  christos 				   valp))
   10933  1.1  christos     return FALSE;
   10934  1.1  christos 
   10935  1.1  christos   return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
   10936  1.1  christos }
   10937  1.1  christos 
   10938  1.1  christos static void
   10939  1.1  christos ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
   10940  1.1  christos {
   10941  1.1  christos   ppc_elf_final_write_processing(abfd, linker);
   10942  1.1  christos   elf_vxworks_final_write_processing(abfd, linker);
   10943  1.1  christos }
   10944  1.1  christos 
   10945  1.1  christos /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
   10946  1.1  christos    define it.  */
   10947  1.1  christos #undef elf_backend_want_plt_sym
   10948  1.1  christos #define elf_backend_want_plt_sym		1
   10949  1.1  christos #undef elf_backend_want_got_plt
   10950  1.1  christos #define elf_backend_want_got_plt		1
   10951  1.1  christos #undef elf_backend_got_symbol_offset
   10952  1.1  christos #define elf_backend_got_symbol_offset		0
   10953  1.1  christos #undef elf_backend_plt_not_loaded
   10954  1.1  christos #define elf_backend_plt_not_loaded		0
   10955  1.1  christos #undef elf_backend_plt_readonly
   10956  1.1  christos #define elf_backend_plt_readonly		1
   10957  1.1  christos #undef elf_backend_got_header_size
   10958  1.1  christos #define elf_backend_got_header_size		12
   10959  1.1  christos 
   10960  1.1  christos #undef bfd_elf32_get_synthetic_symtab
   10961  1.1  christos 
   10962  1.1  christos #undef bfd_elf32_bfd_link_hash_table_create
   10963  1.1  christos #define bfd_elf32_bfd_link_hash_table_create \
   10964  1.1  christos   ppc_elf_vxworks_link_hash_table_create
   10965  1.1  christos #undef elf_backend_add_symbol_hook
   10966                #define elf_backend_add_symbol_hook \
   10967                  ppc_elf_vxworks_add_symbol_hook
   10968                #undef elf_backend_link_output_symbol_hook
   10969                #define elf_backend_link_output_symbol_hook \
   10970                  elf_vxworks_link_output_symbol_hook
   10971                #undef elf_backend_final_write_processing
   10972                #define elf_backend_final_write_processing \
   10973                  ppc_elf_vxworks_final_write_processing
   10974                #undef elf_backend_get_sec_type_attr
   10975                #define elf_backend_get_sec_type_attr \
   10976                  ppc_elf_vxworks_get_sec_type_attr
   10977                #undef elf_backend_emit_relocs
   10978                #define elf_backend_emit_relocs \
   10979                  elf_vxworks_emit_relocs
   10980                
   10981                #undef elf32_bed
   10982                #define elf32_bed				ppc_elf_vxworks_bed
   10983                #undef elf_backend_post_process_headers
   10984                
   10985                #include "elf32-target.h"
   10986