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Rework signal frame probing for FreeBSD/x86
[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
CommitLineData
5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
b90efa5b 2 Copyright (C) 1999-2015 Free Software Foundation, Inc.
5bd4f169
AM		 3 Written by Linus Nordberg, Swox AB <info@swox.com>,
4 based on elf32-ppc.c by Ian Lance Taylor.
32ca9640 5 Largely rewritten by Alan Modra.
5bd4f169 6
ae9a127f 7 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 8
ae9a127f
NC		 9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
cd123cb7 11 the Free Software Foundation; either version 3 of the License, or
ae9a127f 12 (at your option) any later version.
5bd4f169 13
ae9a127f
NC		 14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
5bd4f169 18
4ce794b7
AM		 19 You should have received a copy of the GNU General Public License along
20 with this program; if not, write to the Free Software Foundation, Inc.,
3e110533 21 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
5bd4f169 22
cd123cb7 23
4ce794b7
AM		 24/* The 64-bit PowerPC ELF ABI may be found at
25 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
26 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
5bd4f169 27
3db64b00 28#include "sysdep.h"
183e98be 29#include <stdarg.h>
5bd4f169 30#include "bfd.h"
5bd4f169
AM		 31#include "bfdlink.h"
32#include "libbfd.h"
33#include "elf-bfd.h"
04c9666a 34#include "elf/ppc64.h"
5d1634d7 35#include "elf64-ppc.h"
58d180e8 36#include "dwarf2.h"
5bd4f169 37
805fc799 38static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
2441e016
AM		 40static bfd_reloc_status_type ppc64_elf_branch_reloc
41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 42static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 44static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 46static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 48static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 50static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 52static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 53 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 54static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 55 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
2441e016 56static bfd_vma opd_entry_value
aef36ac1 57 (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean);
5bd4f169 58
6d00b590 59#define TARGET_LITTLE_SYM powerpc_elf64_le_vec
ad8e1ba5 60#define TARGET_LITTLE_NAME "elf64-powerpcle"
6d00b590 61#define TARGET_BIG_SYM powerpc_elf64_vec
ad8e1ba5
AM		 62#define TARGET_BIG_NAME "elf64-powerpc"
63#define ELF_ARCH bfd_arch_powerpc
ae95ffa6 64#define ELF_TARGET_ID PPC64_ELF_DATA
ad8e1ba5
AM		 65#define ELF_MACHINE_CODE EM_PPC64
66#define ELF_MAXPAGESIZE 0x10000
04c6a44c 67#define ELF_COMMONPAGESIZE 0x10000
ad8e1ba5
AM		 68#define elf_info_to_howto ppc64_elf_info_to_howto
69
70#define elf_backend_want_got_sym 0
71#define elf_backend_want_plt_sym 0
72#define elf_backend_plt_alignment 3
73#define elf_backend_plt_not_loaded 1
ad8e1ba5 74#define elf_backend_got_header_size 8
ad8e1ba5
AM		 75#define elf_backend_can_gc_sections 1
76#define elf_backend_can_refcount 1
77#define elf_backend_rela_normal 1
6bfdb61b 78#define elf_backend_default_execstack 0
ad8e1ba5 79
e717da7e 80#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5 81#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
aa374f67 82#define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
ee67d69a
AM		 83#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
84#define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data
ad8e1ba5
AM		 85#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
86#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
90e3cdf2 87#define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
aa374f67 88#define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms
ad8e1ba5
AM		 89
90#define elf_backend_object_p ppc64_elf_object_p
d37c89e5
AM		 91#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
92#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
183e98be 93#define elf_backend_write_core_note ppc64_elf_write_core_note
ad8e1ba5
AM		 94#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
95#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
555cd476 96#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
f6c7c3e8 97#define elf_backend_check_directives ppc64_elf_before_check_relocs
e5034e59 98#define elf_backend_notice_as_needed ppc64_elf_notice_as_needed
8387904d 99#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
ad8e1ba5 100#define elf_backend_check_relocs ppc64_elf_check_relocs
74f0fb50 101#define elf_backend_gc_keep ppc64_elf_gc_keep
64d03ab5 102#define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
ad8e1ba5
AM		 103#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
104#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
105#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
106#define elf_backend_hide_symbol ppc64_elf_hide_symbol
9f296da3 107#define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym
ad8e1ba5
AM		 108#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
109#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
a345bc8d 110#define elf_backend_hash_symbol ppc64_elf_hash_symbol
74541ad4 111#define elf_backend_init_index_section _bfd_elf_init_2_index_sections
60124e18 112#define elf_backend_action_discarded ppc64_elf_action_discarded
ad8e1ba5
AM		 113#define elf_backend_relocate_section ppc64_elf_relocate_section
114#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
115#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
116#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
754021d0 117#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
29ef7005 118#define elf_backend_special_sections ppc64_elf_special_sections
6911b7dc 119#define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute
ad8e1ba5 120
5bd4f169
AM		 121/* The name of the dynamic interpreter. This is put in the .interp
122 section. */
123#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
124
125/* The size in bytes of an entry in the procedure linkage table. */
b9e5796b 126#define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8)
5bd4f169
AM		 127
128/* The initial size of the plt reserved for the dynamic linker. */
b9e5796b 129#define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16)
5bd4f169 130
a078d95a
AM		 131/* Offsets to some stack save slots. */
132#define STK_LR 16
133#define STK_TOC(htab) (htab->opd_abi ? 40 : 24)
eb8d7fda 134/* This one is dodgy. ELFv2 does not have a linker word, so use the
a078d95a
AM		 135 CR save slot. Used only by optimised __tls_get_addr call stub,
136 relying on __tls_get_addr_opt not saving CR.. */
137#define STK_LINKER(htab) (htab->opd_abi ? 32 : 8)
138
5bd4f169 139/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 140#define TOC_BASE_OFF 0x8000
141
142/* Offset of tp and dtp pointers from start of TLS block. */
143#define TP_OFFSET 0x7000
144#define DTP_OFFSET 0x8000
5bd4f169 145
ad8e1ba5
AM		 146/* .plt call stub instructions. The normal stub is like this, but
147 sometimes the .plt entry crosses a 64k boundary and we need to
71a39c98 148 insert an addi to adjust r11. */
a078d95a 149#define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */
71a39c98
AM		 150#define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */
151#define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */
152#define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */
153#define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */
154#define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */
5d1634d7
AM		 155#define BCTR 0x4e800420 /* bctr */
156
71a39c98 157#define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */
ad8e1ba5
AM		 158#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
159#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
160
71a39c98
AM		 161#define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */
162#define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */
163#define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */
794e51c0
AM		 164#define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */
165#define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */
166#define BNECTR 0x4ca20420 /* bnectr+ */
167#define BNECTR_P4 0x4ce20420 /* bnectr+ */
168
71a39c98 169#define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */
ac2df442
AM		 170#define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
171#define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
172
a078d95a 173#define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */
ad8e1ba5 174
397998fc 175#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
a345bc8d
AM		 176#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
177#define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */
178
ee4bf8d2 179/* glink call stub instructions. We enter with the index in R0. */
ad8e1ba5 180#define GLINK_CALL_STUB_SIZE (16*4)
ee4bf8d2
AM		 181 /* 0: */
182 /* .quad plt0-1f */
183 /* __glink: */
184#define MFLR_R12 0x7d8802a6 /* mflr %12 */
185#define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
186 /* 1: */
187#define MFLR_R11 0x7d6802a6 /* mflr %11 */
71a39c98 188 /* ld %2,(0b-1b)(%11) */
ee4bf8d2 189#define MTLR_R12 0x7d8803a6 /* mtlr %12 */
71a39c98
AM		 190#define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */
191 /* ld %12,0(%11) */
192 /* ld %2,8(%11) */
193 /* mtctr %12 */
194 /* ld %11,16(%11) */
ee4bf8d2 195 /* bctr */
b9e5796b
AM		 196#define MFLR_R0 0x7c0802a6 /* mflr %r0 */
197#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
198#define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */
199#define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */
200#define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */
5d1634d7
AM		 201
202/* Pad with this. */
203#define NOP 0x60000000
204
721956f4
AM		 205/* Some other nops. */
206#define CROR_151515 0x4def7b82
207#define CROR_313131 0x4ffffb82
208
cedb70c5 209/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 210#define LI_R0_0 0x38000000 /* li %r0,0 */
211#define B_DOT 0x48000000 /* b . */
212
213/* After that, we need two instructions to load the index, followed by
214 a branch. */
215#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 216#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 217
deb0e272
AM		 218/* Instructions used by the save and restore reg functions. */
219#define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
220#define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
221#define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
222#define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
82bd7b59
AM		 223#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
224#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
deb0e272
AM		 225#define LI_R12_0 0x39800000 /* li %r12,0 */
226#define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
227#define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
228#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
82bd7b59
AM		 229#define BLR 0x4e800020 /* blr */
230
41bd81ab
AM		 231/* Since .opd is an array of descriptors and each entry will end up
232 with identical R_PPC64_RELATIVE relocs, there is really no need to
233 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 234 relocate .opd without reloc entries. */
41bd81ab
AM		 235#ifndef NO_OPD_RELOCS
236#define NO_OPD_RELOCS 0
237#endif
810d4e75
AM		 238
239static inline int
240abiversion (bfd *abfd)
241{
242 return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI;
243}
244
245static inline void
246set_abiversion (bfd *abfd, int ver)
247{
248 elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI;
249 elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI;
250}
5bd4f169 251\f
f5e87a1d 252#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 253
5bd4f169 254/* Relocation HOWTO's. */
04c9666a 255static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 256
257static reloc_howto_type ppc64_elf_howto_raw[] = {
258 /* This reloc does nothing. */
259 HOWTO (R_PPC64_NONE, /* type */
260 0, /* rightshift */
6346d5ca
AM		 261 3, /* size (0 = byte, 1 = short, 2 = long) */
262 0, /* bitsize */
b34976b6 263 FALSE, /* pc_relative */
5bd4f169 264 0, /* bitpos */
f5e87a1d 265 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 266 bfd_elf_generic_reloc, /* special_function */
267 "R_PPC64_NONE", /* name */
b34976b6 268 FALSE, /* partial_inplace */
d006db6c 269 0, /* src_mask */
5bd4f169 270 0, /* dst_mask */
b34976b6 271 FALSE), /* pcrel_offset */
5bd4f169
AM		 272
273 /* A standard 32 bit relocation. */
274 HOWTO (R_PPC64_ADDR32, /* type */
275 0, /* rightshift */
276 2, /* size (0 = byte, 1 = short, 2 = long) */
277 32, /* bitsize */
b34976b6 278 FALSE, /* pc_relative */
5bd4f169
AM		 279 0, /* bitpos */
280 complain_overflow_bitfield, /* complain_on_overflow */
281 bfd_elf_generic_reloc, /* special_function */
282 "R_PPC64_ADDR32", /* name */
b34976b6 283 FALSE, /* partial_inplace */
5bd4f169
AM		 284 0, /* src_mask */
285 0xffffffff, /* dst_mask */
b34976b6 286 FALSE), /* pcrel_offset */
5bd4f169
AM		 287
288 /* An absolute 26 bit branch; the lower two bits must be zero.
289 FIXME: we don't check that, we just clear them. */
290 HOWTO (R_PPC64_ADDR24, /* type */
291 0, /* rightshift */
292 2, /* size (0 = byte, 1 = short, 2 = long) */
293 26, /* bitsize */
b34976b6 294 FALSE, /* pc_relative */
5bd4f169
AM		 295 0, /* bitpos */
296 complain_overflow_bitfield, /* complain_on_overflow */
297 bfd_elf_generic_reloc, /* special_function */
298 "R_PPC64_ADDR24", /* name */
b34976b6 299 FALSE, /* partial_inplace */
d006db6c 300 0, /* src_mask */
f5e87a1d 301 0x03fffffc, /* dst_mask */
b34976b6 302 FALSE), /* pcrel_offset */
5bd4f169
AM		 303
304 /* A standard 16 bit relocation. */
305 HOWTO (R_PPC64_ADDR16, /* type */
306 0, /* rightshift */
307 1, /* size (0 = byte, 1 = short, 2 = long) */
308 16, /* bitsize */
b34976b6 309 FALSE, /* pc_relative */
5bd4f169
AM		 310 0, /* bitpos */
311 complain_overflow_bitfield, /* complain_on_overflow */
312 bfd_elf_generic_reloc, /* special_function */
313 "R_PPC64_ADDR16", /* name */
b34976b6 314 FALSE, /* partial_inplace */
5bd4f169
AM		 315 0, /* src_mask */
316 0xffff, /* dst_mask */
b34976b6 317 FALSE), /* pcrel_offset */
5bd4f169
AM		 318
319 /* A 16 bit relocation without overflow. */
320 HOWTO (R_PPC64_ADDR16_LO, /* type */
321 0, /* rightshift */
322 1, /* size (0 = byte, 1 = short, 2 = long) */
323 16, /* bitsize */
b34976b6 324 FALSE, /* pc_relative */
5bd4f169
AM		 325 0, /* bitpos */
326 complain_overflow_dont,/* complain_on_overflow */
327 bfd_elf_generic_reloc, /* special_function */
328 "R_PPC64_ADDR16_LO", /* name */
b34976b6 329 FALSE, /* partial_inplace */
5bd4f169
AM		 330 0, /* src_mask */
331 0xffff, /* dst_mask */
b34976b6 332 FALSE), /* pcrel_offset */
5bd4f169
AM		 333
334 /* Bits 16-31 of an address. */
335 HOWTO (R_PPC64_ADDR16_HI, /* type */
336 16, /* rightshift */
337 1, /* size (0 = byte, 1 = short, 2 = long) */
338 16, /* bitsize */
b34976b6 339 FALSE, /* pc_relative */
5bd4f169 340 0, /* bitpos */
f9c6b907 341 complain_overflow_signed, /* complain_on_overflow */
5bd4f169
AM		 342 bfd_elf_generic_reloc, /* special_function */
343 "R_PPC64_ADDR16_HI", /* name */
b34976b6 344 FALSE, /* partial_inplace */
5bd4f169
AM		 345 0, /* src_mask */
346 0xffff, /* dst_mask */
b34976b6 347 FALSE), /* pcrel_offset */
5bd4f169
AM		 348
349 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
350 bits, treated as a signed number, is negative. */
351 HOWTO (R_PPC64_ADDR16_HA, /* type */
352 16, /* rightshift */
353 1, /* size (0 = byte, 1 = short, 2 = long) */
354 16, /* bitsize */
b34976b6 355 FALSE, /* pc_relative */
5bd4f169 356 0, /* bitpos */
f9c6b907 357 complain_overflow_signed, /* complain_on_overflow */
805fc799 358 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 359 "R_PPC64_ADDR16_HA", /* name */
b34976b6 360 FALSE, /* partial_inplace */
5bd4f169
AM		 361 0, /* src_mask */
362 0xffff, /* dst_mask */
b34976b6 363 FALSE), /* pcrel_offset */
5bd4f169
AM		 364
365 /* An absolute 16 bit branch; the lower two bits must be zero.
366 FIXME: we don't check that, we just clear them. */
367 HOWTO (R_PPC64_ADDR14, /* type */
368 0, /* rightshift */
369 2, /* size (0 = byte, 1 = short, 2 = long) */
370 16, /* bitsize */
b34976b6 371 FALSE, /* pc_relative */
5bd4f169 372 0, /* bitpos */
b80eed39 373 complain_overflow_signed, /* complain_on_overflow */
2441e016 374 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 375 "R_PPC64_ADDR14", /* name */
b34976b6 376 FALSE, /* partial_inplace */
d006db6c 377 0, /* src_mask */
f5e87a1d 378 0x0000fffc, /* dst_mask */
b34976b6 379 FALSE), /* pcrel_offset */
5bd4f169
AM		 380
381 /* An absolute 16 bit branch, for which bit 10 should be set to
382 indicate that the branch is expected to be taken. The lower two
383 bits must be zero. */
384 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
385 0, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 16, /* bitsize */
b34976b6 388 FALSE, /* pc_relative */
5bd4f169 389 0, /* bitpos */
b80eed39 390 complain_overflow_signed, /* complain_on_overflow */
805fc799 391 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 392 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 393 FALSE, /* partial_inplace */
d006db6c 394 0, /* src_mask */
f5e87a1d 395 0x0000fffc, /* dst_mask */
b34976b6 396 FALSE), /* pcrel_offset */
5bd4f169
AM		 397
398 /* An absolute 16 bit branch, for which bit 10 should be set to
399 indicate that the branch is not expected to be taken. The lower
400 two bits must be zero. */
401 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
402 0, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
b34976b6 405 FALSE, /* pc_relative */
5bd4f169 406 0, /* bitpos */
b80eed39 407 complain_overflow_signed, /* complain_on_overflow */
805fc799 408 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 409 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 410 FALSE, /* partial_inplace */
d006db6c 411 0, /* src_mask */
f5e87a1d 412 0x0000fffc, /* dst_mask */
b34976b6 413 FALSE), /* pcrel_offset */
5bd4f169
AM		 414
415 /* A relative 26 bit branch; the lower two bits must be zero. */
416 HOWTO (R_PPC64_REL24, /* type */
417 0, /* rightshift */
418 2, /* size (0 = byte, 1 = short, 2 = long) */
419 26, /* bitsize */
b34976b6 420 TRUE, /* pc_relative */
5bd4f169
AM		 421 0, /* bitpos */
422 complain_overflow_signed, /* complain_on_overflow */
2441e016 423 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 424 "R_PPC64_REL24", /* name */
b34976b6 425 FALSE, /* partial_inplace */
d006db6c 426 0, /* src_mask */
f5e87a1d 427 0x03fffffc, /* dst_mask */
b34976b6 428 TRUE), /* pcrel_offset */
5bd4f169
AM		 429
430 /* A relative 16 bit branch; the lower two bits must be zero. */
431 HOWTO (R_PPC64_REL14, /* type */
432 0, /* rightshift */
433 2, /* size (0 = byte, 1 = short, 2 = long) */
434 16, /* bitsize */
b34976b6 435 TRUE, /* pc_relative */
5bd4f169
AM		 436 0, /* bitpos */
437 complain_overflow_signed, /* complain_on_overflow */
2441e016 438 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 439 "R_PPC64_REL14", /* name */
b34976b6 440 FALSE, /* partial_inplace */
d006db6c 441 0, /* src_mask */
f5e87a1d 442 0x0000fffc, /* dst_mask */
b34976b6 443 TRUE), /* pcrel_offset */
5bd4f169
AM		 444
445 /* A relative 16 bit branch. Bit 10 should be set to indicate that
446 the branch is expected to be taken. The lower two bits must be
447 zero. */
448 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
449 0, /* rightshift */
450 2, /* size (0 = byte, 1 = short, 2 = long) */
451 16, /* bitsize */
b34976b6 452 TRUE, /* pc_relative */
5bd4f169
AM		 453 0, /* bitpos */
454 complain_overflow_signed, /* complain_on_overflow */
805fc799 455 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 456 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 457 FALSE, /* partial_inplace */
d006db6c 458 0, /* src_mask */
f5e87a1d 459 0x0000fffc, /* dst_mask */
b34976b6 460 TRUE), /* pcrel_offset */
5bd4f169
AM		 461
462 /* A relative 16 bit branch. Bit 10 should be set to indicate that
463 the branch is not expected to be taken. The lower two bits must
464 be zero. */
465 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
466 0, /* rightshift */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
468 16, /* bitsize */
b34976b6 469 TRUE, /* pc_relative */
5bd4f169
AM		 470 0, /* bitpos */
471 complain_overflow_signed, /* complain_on_overflow */
805fc799 472 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 473 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 474 FALSE, /* partial_inplace */
d006db6c 475 0, /* src_mask */
f5e87a1d 476 0x0000fffc, /* dst_mask */
b34976b6 477 TRUE), /* pcrel_offset */
5bd4f169
AM		 478
479 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
480 symbol. */
481 HOWTO (R_PPC64_GOT16, /* type */
482 0, /* rightshift */
483 1, /* size (0 = byte, 1 = short, 2 = long) */
484 16, /* bitsize */
b34976b6 485 FALSE, /* pc_relative */
5bd4f169
AM		 486 0, /* bitpos */
487 complain_overflow_signed, /* complain_on_overflow */
805fc799 488 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 489 "R_PPC64_GOT16", /* name */
b34976b6 490 FALSE, /* partial_inplace */
5bd4f169
AM		 491 0, /* src_mask */
492 0xffff, /* dst_mask */
b34976b6 493 FALSE), /* pcrel_offset */
5bd4f169
AM		 494
495 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
496 the symbol. */
497 HOWTO (R_PPC64_GOT16_LO, /* type */
498 0, /* rightshift */
499 1, /* size (0 = byte, 1 = short, 2 = long) */
500 16, /* bitsize */
b34976b6 501 FALSE, /* pc_relative */
5bd4f169
AM		 502 0, /* bitpos */
503 complain_overflow_dont, /* complain_on_overflow */
805fc799 504 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 505 "R_PPC64_GOT16_LO", /* name */
b34976b6 506 FALSE, /* partial_inplace */
5bd4f169
AM		 507 0, /* src_mask */
508 0xffff, /* dst_mask */
b34976b6 509 FALSE), /* pcrel_offset */
5bd4f169
AM		 510
511 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
512 the symbol. */
513 HOWTO (R_PPC64_GOT16_HI, /* type */
514 16, /* rightshift */
515 1, /* size (0 = byte, 1 = short, 2 = long) */
516 16, /* bitsize */
b34976b6 517 FALSE, /* pc_relative */
5bd4f169 518 0, /* bitpos */
f9c6b907 519 complain_overflow_signed,/* complain_on_overflow */
805fc799 520 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 521 "R_PPC64_GOT16_HI", /* name */
b34976b6 522 FALSE, /* partial_inplace */
5bd4f169
AM		 523 0, /* src_mask */
524 0xffff, /* dst_mask */
b34976b6 525 FALSE), /* pcrel_offset */
5bd4f169
AM		 526
527 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
528 the symbol. */
529 HOWTO (R_PPC64_GOT16_HA, /* type */
530 16, /* rightshift */
531 1, /* size (0 = byte, 1 = short, 2 = long) */
532 16, /* bitsize */
b34976b6 533 FALSE, /* pc_relative */
5bd4f169 534 0, /* bitpos */
f9c6b907 535 complain_overflow_signed,/* complain_on_overflow */
805fc799 536 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 537 "R_PPC64_GOT16_HA", /* name */
b34976b6 538 FALSE, /* partial_inplace */
5bd4f169
AM		 539 0, /* src_mask */
540 0xffff, /* dst_mask */
b34976b6 541 FALSE), /* pcrel_offset */
5bd4f169
AM		 542
543 /* This is used only by the dynamic linker. The symbol should exist
544 both in the object being run and in some shared library. The
545 dynamic linker copies the data addressed by the symbol from the
546 shared library into the object, because the object being
547 run has to have the data at some particular address. */
548 HOWTO (R_PPC64_COPY, /* type */
549 0, /* rightshift */
f5e87a1d
AM		 550 0, /* this one is variable size */
551 0, /* bitsize */
b34976b6 552 FALSE, /* pc_relative */
5bd4f169 553 0, /* bitpos */
f5e87a1d
AM		 554 complain_overflow_dont, /* complain_on_overflow */
555 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 556 "R_PPC64_COPY", /* name */
b34976b6 557 FALSE, /* partial_inplace */
5bd4f169
AM		 558 0, /* src_mask */
559 0, /* dst_mask */
b34976b6 560 FALSE), /* pcrel_offset */
5bd4f169
AM		 561
562 /* Like R_PPC64_ADDR64, but used when setting global offset table
563 entries. */
564 HOWTO (R_PPC64_GLOB_DAT, /* type */
565 0, /* rightshift */
566 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
567 64, /* bitsize */
b34976b6 568 FALSE, /* pc_relative */
5bd4f169
AM		 569 0, /* bitpos */
570 complain_overflow_dont, /* complain_on_overflow */
805fc799 571 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 572 "R_PPC64_GLOB_DAT", /* name */
b34976b6 573 FALSE, /* partial_inplace */
5bd4f169 574 0, /* src_mask */
f5e87a1d 575 ONES (64), /* dst_mask */
b34976b6 576 FALSE), /* pcrel_offset */
5bd4f169
AM		 577
578 /* Created by the link editor. Marks a procedure linkage table
579 entry for a symbol. */
580 HOWTO (R_PPC64_JMP_SLOT, /* type */
581 0, /* rightshift */
582 0, /* size (0 = byte, 1 = short, 2 = long) */
583 0, /* bitsize */
b34976b6 584 FALSE, /* pc_relative */
5bd4f169
AM		 585 0, /* bitpos */
586 complain_overflow_dont, /* complain_on_overflow */
805fc799 587 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 588 "R_PPC64_JMP_SLOT", /* name */
b34976b6 589 FALSE, /* partial_inplace */
5bd4f169
AM		 590 0, /* src_mask */
591 0, /* dst_mask */
b34976b6 592 FALSE), /* pcrel_offset */
5bd4f169
AM		 593
594 /* Used only by the dynamic linker. When the object is run, this
595 doubleword64 is set to the load address of the object, plus the
596 addend. */
597 HOWTO (R_PPC64_RELATIVE, /* type */
598 0, /* rightshift */
599 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
600 64, /* bitsize */
b34976b6 601 FALSE, /* pc_relative */
5bd4f169
AM		 602 0, /* bitpos */
603 complain_overflow_dont, /* complain_on_overflow */
604 bfd_elf_generic_reloc, /* special_function */
605 "R_PPC64_RELATIVE", /* name */
b34976b6 606 FALSE, /* partial_inplace */
5bd4f169 607 0, /* src_mask */
f5e87a1d 608 ONES (64), /* dst_mask */
b34976b6 609 FALSE), /* pcrel_offset */
5bd4f169
AM		 610
611 /* Like R_PPC64_ADDR32, but may be unaligned. */
612 HOWTO (R_PPC64_UADDR32, /* type */
613 0, /* rightshift */
614 2, /* size (0 = byte, 1 = short, 2 = long) */
615 32, /* bitsize */
b34976b6 616 FALSE, /* pc_relative */
5bd4f169
AM		 617 0, /* bitpos */
618 complain_overflow_bitfield, /* complain_on_overflow */
619 bfd_elf_generic_reloc, /* special_function */
620 "R_PPC64_UADDR32", /* name */
b34976b6 621 FALSE, /* partial_inplace */
5bd4f169
AM		 622 0, /* src_mask */
623 0xffffffff, /* dst_mask */
b34976b6 624 FALSE), /* pcrel_offset */
5bd4f169
AM		 625
626 /* Like R_PPC64_ADDR16, but may be unaligned. */
627 HOWTO (R_PPC64_UADDR16, /* type */
628 0, /* rightshift */
629 1, /* size (0 = byte, 1 = short, 2 = long) */
630 16, /* bitsize */
b34976b6 631 FALSE, /* pc_relative */
5bd4f169
AM		 632 0, /* bitpos */
633 complain_overflow_bitfield, /* complain_on_overflow */
634 bfd_elf_generic_reloc, /* special_function */
635 "R_PPC64_UADDR16", /* name */
b34976b6 636 FALSE, /* partial_inplace */
5bd4f169
AM		 637 0, /* src_mask */
638 0xffff, /* dst_mask */
b34976b6 639 FALSE), /* pcrel_offset */
5bd4f169
AM		 640
641 /* 32-bit PC relative. */
642 HOWTO (R_PPC64_REL32, /* type */
643 0, /* rightshift */
644 2, /* size (0 = byte, 1 = short, 2 = long) */
645 32, /* bitsize */
b34976b6 646 TRUE, /* pc_relative */
5bd4f169 647 0, /* bitpos */
5bd4f169
AM		 648 complain_overflow_signed, /* complain_on_overflow */
649 bfd_elf_generic_reloc, /* special_function */
650 "R_PPC64_REL32", /* name */
b34976b6 651 FALSE, /* partial_inplace */
5bd4f169
AM		 652 0, /* src_mask */
653 0xffffffff, /* dst_mask */
b34976b6 654 TRUE), /* pcrel_offset */
5bd4f169 655
10ed1bba 656 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 657 HOWTO (R_PPC64_PLT32, /* type */
658 0, /* rightshift */
659 2, /* size (0 = byte, 1 = short, 2 = long) */
660 32, /* bitsize */
b34976b6 661 FALSE, /* pc_relative */
5bd4f169
AM		 662 0, /* bitpos */
663 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 664 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 665 "R_PPC64_PLT32", /* name */
b34976b6 666 FALSE, /* partial_inplace */
5bd4f169 667 0, /* src_mask */
f5e87a1d 668 0xffffffff, /* dst_mask */
b34976b6 669 FALSE), /* pcrel_offset */
5bd4f169
AM		 670
671 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
672 FIXME: R_PPC64_PLTREL32 not supported. */
673 HOWTO (R_PPC64_PLTREL32, /* type */
674 0, /* rightshift */
675 2, /* size (0 = byte, 1 = short, 2 = long) */
676 32, /* bitsize */
b34976b6 677 TRUE, /* pc_relative */
5bd4f169
AM		 678 0, /* bitpos */
679 complain_overflow_signed, /* complain_on_overflow */
680 bfd_elf_generic_reloc, /* special_function */
681 "R_PPC64_PLTREL32", /* name */
b34976b6 682 FALSE, /* partial_inplace */
5bd4f169 683 0, /* src_mask */
f5e87a1d 684 0xffffffff, /* dst_mask */
b34976b6 685 TRUE), /* pcrel_offset */
5bd4f169
AM		 686
687 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
688 the symbol. */
689 HOWTO (R_PPC64_PLT16_LO, /* type */
690 0, /* rightshift */
691 1, /* size (0 = byte, 1 = short, 2 = long) */
692 16, /* bitsize */
b34976b6 693 FALSE, /* pc_relative */
5bd4f169
AM		 694 0, /* bitpos */
695 complain_overflow_dont, /* complain_on_overflow */
805fc799 696 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 697 "R_PPC64_PLT16_LO", /* name */
b34976b6 698 FALSE, /* partial_inplace */
5bd4f169
AM		 699 0, /* src_mask */
700 0xffff, /* dst_mask */
b34976b6 701 FALSE), /* pcrel_offset */
5bd4f169
AM		 702
703 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
704 the symbol. */
705 HOWTO (R_PPC64_PLT16_HI, /* type */
706 16, /* rightshift */
707 1, /* size (0 = byte, 1 = short, 2 = long) */
708 16, /* bitsize */
b34976b6 709 FALSE, /* pc_relative */
5bd4f169 710 0, /* bitpos */
f9c6b907 711 complain_overflow_signed, /* complain_on_overflow */
805fc799 712 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 713 "R_PPC64_PLT16_HI", /* name */
b34976b6 714 FALSE, /* partial_inplace */
5bd4f169
AM		 715 0, /* src_mask */
716 0xffff, /* dst_mask */
b34976b6 717 FALSE), /* pcrel_offset */
5bd4f169
AM		 718
719 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
720 the symbol. */
721 HOWTO (R_PPC64_PLT16_HA, /* type */
722 16, /* rightshift */
723 1, /* size (0 = byte, 1 = short, 2 = long) */
724 16, /* bitsize */
b34976b6 725 FALSE, /* pc_relative */
5bd4f169 726 0, /* bitpos */
f9c6b907 727 complain_overflow_signed, /* complain_on_overflow */
805fc799 728 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 729 "R_PPC64_PLT16_HA", /* name */
b34976b6 730 FALSE, /* partial_inplace */
5bd4f169
AM		 731 0, /* src_mask */
732 0xffff, /* dst_mask */
b34976b6 733 FALSE), /* pcrel_offset */
5bd4f169 734
c061c2d8 735 /* 16-bit section relative relocation. */
5bd4f169
AM		 736 HOWTO (R_PPC64_SECTOFF, /* type */
737 0, /* rightshift */
c061c2d8
AM		 738 1, /* size (0 = byte, 1 = short, 2 = long) */
739 16, /* bitsize */
b34976b6 740 FALSE, /* pc_relative */
5bd4f169 741 0, /* bitpos */
b80eed39 742 complain_overflow_signed, /* complain_on_overflow */
805fc799 743 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 744 "R_PPC64_SECTOFF", /* name */
b34976b6 745 FALSE, /* partial_inplace */
5bd4f169 746 0, /* src_mask */
c061c2d8 747 0xffff, /* dst_mask */
b34976b6 748 FALSE), /* pcrel_offset */
5bd4f169 749
c061c2d8 750 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 751 HOWTO (R_PPC64_SECTOFF_LO, /* type */
752 0, /* rightshift */
753 1, /* size (0 = byte, 1 = short, 2 = long) */
754 16, /* bitsize */
b34976b6 755 FALSE, /* pc_relative */
5bd4f169
AM		 756 0, /* bitpos */
757 complain_overflow_dont, /* complain_on_overflow */
805fc799 758 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 759 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 760 FALSE, /* partial_inplace */
5bd4f169
AM		 761 0, /* src_mask */
762 0xffff, /* dst_mask */
b34976b6 763 FALSE), /* pcrel_offset */
5bd4f169
AM		 764
765 /* 16-bit upper half section relative relocation. */
766 HOWTO (R_PPC64_SECTOFF_HI, /* type */
767 16, /* rightshift */
768 1, /* size (0 = byte, 1 = short, 2 = long) */
769 16, /* bitsize */
b34976b6 770 FALSE, /* pc_relative */
5bd4f169 771 0, /* bitpos */
f9c6b907 772 complain_overflow_signed, /* complain_on_overflow */
805fc799 773 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 774 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 775 FALSE, /* partial_inplace */
5bd4f169
AM		 776 0, /* src_mask */
777 0xffff, /* dst_mask */
b34976b6 778 FALSE), /* pcrel_offset */
5bd4f169
AM		 779
780 /* 16-bit upper half adjusted section relative relocation. */
781 HOWTO (R_PPC64_SECTOFF_HA, /* type */
782 16, /* rightshift */
783 1, /* size (0 = byte, 1 = short, 2 = long) */
784 16, /* bitsize */
b34976b6 785 FALSE, /* pc_relative */
5bd4f169 786 0, /* bitpos */
f9c6b907 787 complain_overflow_signed, /* complain_on_overflow */
805fc799 788 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 789 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 790 FALSE, /* partial_inplace */
5bd4f169
AM		 791 0, /* src_mask */
792 0xffff, /* dst_mask */
b34976b6 793 FALSE), /* pcrel_offset */
5bd4f169 794
04c9666a
AM		 795 /* Like R_PPC64_REL24 without touching the two least significant bits. */
796 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 797 2, /* rightshift */
798 2, /* size (0 = byte, 1 = short, 2 = long) */
799 30, /* bitsize */
b34976b6 800 TRUE, /* pc_relative */
5bd4f169
AM		 801 0, /* bitpos */
802 complain_overflow_dont, /* complain_on_overflow */
803 bfd_elf_generic_reloc, /* special_function */
04c9666a 804 "R_PPC64_REL30", /* name */
b34976b6 805 FALSE, /* partial_inplace */
d006db6c 806 0, /* src_mask */
5bd4f169 807 0xfffffffc, /* dst_mask */
b34976b6 808 TRUE), /* pcrel_offset */
5bd4f169
AM		 809
810 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
811
812 /* A standard 64-bit relocation. */
813 HOWTO (R_PPC64_ADDR64, /* type */
814 0, /* rightshift */
815 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
816 64, /* bitsize */
b34976b6 817 FALSE, /* pc_relative */
5bd4f169
AM		 818 0, /* bitpos */
819 complain_overflow_dont, /* complain_on_overflow */
820 bfd_elf_generic_reloc, /* special_function */
821 "R_PPC64_ADDR64", /* name */
b34976b6 822 FALSE, /* partial_inplace */
5bd4f169 823 0, /* src_mask */
f5e87a1d 824 ONES (64), /* dst_mask */
b34976b6 825 FALSE), /* pcrel_offset */
5bd4f169
AM		 826
827 /* The bits 32-47 of an address. */
828 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
829 32, /* rightshift */
830 1, /* size (0 = byte, 1 = short, 2 = long) */
831 16, /* bitsize */
b34976b6 832 FALSE, /* pc_relative */
5bd4f169
AM		 833 0, /* bitpos */
834 complain_overflow_dont, /* complain_on_overflow */
835 bfd_elf_generic_reloc, /* special_function */
836 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 837 FALSE, /* partial_inplace */
5bd4f169
AM		 838 0, /* src_mask */
839 0xffff, /* dst_mask */
b34976b6 840 FALSE), /* pcrel_offset */
5bd4f169
AM		 841
842 /* The bits 32-47 of an address, plus 1 if the contents of the low
843 16 bits, treated as a signed number, is negative. */
844 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
845 32, /* rightshift */
846 1, /* size (0 = byte, 1 = short, 2 = long) */
847 16, /* bitsize */
b34976b6 848 FALSE, /* pc_relative */
5bd4f169
AM		 849 0, /* bitpos */
850 complain_overflow_dont, /* complain_on_overflow */
805fc799 851 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 852 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 853 FALSE, /* partial_inplace */
5bd4f169
AM		 854 0, /* src_mask */
855 0xffff, /* dst_mask */
b34976b6 856 FALSE), /* pcrel_offset */
5bd4f169
AM		 857
858 /* The bits 48-63 of an address. */
859 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
860 48, /* rightshift */
861 1, /* size (0 = byte, 1 = short, 2 = long) */
862 16, /* bitsize */
b34976b6 863 FALSE, /* pc_relative */
5bd4f169
AM		 864 0, /* bitpos */
865 complain_overflow_dont, /* complain_on_overflow */
866 bfd_elf_generic_reloc, /* special_function */
867 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 868 FALSE, /* partial_inplace */
5bd4f169
AM		 869 0, /* src_mask */
870 0xffff, /* dst_mask */
b34976b6 871 FALSE), /* pcrel_offset */
5bd4f169
AM		 872
873 /* The bits 48-63 of an address, plus 1 if the contents of the low
874 16 bits, treated as a signed number, is negative. */
875 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
876 48, /* rightshift */
877 1, /* size (0 = byte, 1 = short, 2 = long) */
878 16, /* bitsize */
b34976b6 879 FALSE, /* pc_relative */
5bd4f169
AM		 880 0, /* bitpos */
881 complain_overflow_dont, /* complain_on_overflow */
805fc799 882 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 883 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 884 FALSE, /* partial_inplace */
5bd4f169
AM		 885 0, /* src_mask */
886 0xffff, /* dst_mask */
b34976b6 887 FALSE), /* pcrel_offset */
5bd4f169
AM		 888
889 /* Like ADDR64, but may be unaligned. */
890 HOWTO (R_PPC64_UADDR64, /* type */
891 0, /* rightshift */
892 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
893 64, /* bitsize */
b34976b6 894 FALSE, /* pc_relative */
5bd4f169
AM		 895 0, /* bitpos */
896 complain_overflow_dont, /* complain_on_overflow */
897 bfd_elf_generic_reloc, /* special_function */
898 "R_PPC64_UADDR64", /* name */
b34976b6 899 FALSE, /* partial_inplace */
5bd4f169 900 0, /* src_mask */
f5e87a1d 901 ONES (64), /* dst_mask */
b34976b6 902 FALSE), /* pcrel_offset */
5bd4f169
AM		 903
904 /* 64-bit relative relocation. */
905 HOWTO (R_PPC64_REL64, /* type */
906 0, /* rightshift */
907 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
908 64, /* bitsize */
b34976b6 909 TRUE, /* pc_relative */
5bd4f169
AM		 910 0, /* bitpos */
911 complain_overflow_dont, /* complain_on_overflow */
912 bfd_elf_generic_reloc, /* special_function */
913 "R_PPC64_REL64", /* name */
b34976b6 914 FALSE, /* partial_inplace */
5bd4f169 915 0, /* src_mask */
f5e87a1d 916 ONES (64), /* dst_mask */
b34976b6 917 TRUE), /* pcrel_offset */
5bd4f169 918
cedb70c5 919 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 920 HOWTO (R_PPC64_PLT64, /* type */
921 0, /* rightshift */
922 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
923 64, /* bitsize */
b34976b6 924 FALSE, /* pc_relative */
5bd4f169
AM		 925 0, /* bitpos */
926 complain_overflow_dont, /* complain_on_overflow */
805fc799 927 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 928 "R_PPC64_PLT64", /* name */
b34976b6 929 FALSE, /* partial_inplace */
5bd4f169 930 0, /* src_mask */
f5e87a1d 931 ONES (64), /* dst_mask */
b34976b6 932 FALSE), /* pcrel_offset */
5bd4f169
AM		 933
934 /* 64-bit PC relative relocation to the symbol's procedure linkage
935 table. */
936 /* FIXME: R_PPC64_PLTREL64 not supported. */
937 HOWTO (R_PPC64_PLTREL64, /* type */
938 0, /* rightshift */
939 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
940 64, /* bitsize */
b34976b6 941 TRUE, /* pc_relative */
5bd4f169
AM		 942 0, /* bitpos */
943 complain_overflow_dont, /* complain_on_overflow */
805fc799 944 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 945 "R_PPC64_PLTREL64", /* name */
b34976b6 946 FALSE, /* partial_inplace */
5bd4f169 947 0, /* src_mask */
f5e87a1d 948 ONES (64), /* dst_mask */
b34976b6 949 TRUE), /* pcrel_offset */
5bd4f169
AM		 950
951 /* 16 bit TOC-relative relocation. */
952
953 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
954 HOWTO (R_PPC64_TOC16, /* type */
955 0, /* rightshift */
956 1, /* size (0 = byte, 1 = short, 2 = long) */
957 16, /* bitsize */
b34976b6 958 FALSE, /* pc_relative */
5bd4f169
AM		 959 0, /* bitpos */
960 complain_overflow_signed, /* complain_on_overflow */
805fc799 961 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 962 "R_PPC64_TOC16", /* name */
b34976b6 963 FALSE, /* partial_inplace */
5bd4f169
AM		 964 0, /* src_mask */
965 0xffff, /* dst_mask */
b34976b6 966 FALSE), /* pcrel_offset */
5bd4f169
AM		 967
968 /* 16 bit TOC-relative relocation without overflow. */
969
970 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
971 HOWTO (R_PPC64_TOC16_LO, /* type */
972 0, /* rightshift */
973 1, /* size (0 = byte, 1 = short, 2 = long) */
974 16, /* bitsize */
b34976b6 975 FALSE, /* pc_relative */
5bd4f169
AM		 976 0, /* bitpos */
977 complain_overflow_dont, /* complain_on_overflow */
805fc799 978 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 979 "R_PPC64_TOC16_LO", /* name */
b34976b6 980 FALSE, /* partial_inplace */
5bd4f169
AM		 981 0, /* src_mask */
982 0xffff, /* dst_mask */
b34976b6 983 FALSE), /* pcrel_offset */
5bd4f169
AM		 984
985 /* 16 bit TOC-relative relocation, high 16 bits. */
986
987 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
988 HOWTO (R_PPC64_TOC16_HI, /* type */
989 16, /* rightshift */
990 1, /* size (0 = byte, 1 = short, 2 = long) */
991 16, /* bitsize */
b34976b6 992 FALSE, /* pc_relative */
5bd4f169 993 0, /* bitpos */
f9c6b907 994 complain_overflow_signed, /* complain_on_overflow */
805fc799 995 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 996 "R_PPC64_TOC16_HI", /* name */
b34976b6 997 FALSE, /* partial_inplace */
5bd4f169
AM		 998 0, /* src_mask */
999 0xffff, /* dst_mask */
b34976b6 1000 FALSE), /* pcrel_offset */
5bd4f169
AM		 1001
1002 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
1003 contents of the low 16 bits, treated as a signed number, is
1004 negative. */
1005
1006 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
1007 HOWTO (R_PPC64_TOC16_HA, /* type */
1008 16, /* rightshift */
1009 1, /* size (0 = byte, 1 = short, 2 = long) */
1010 16, /* bitsize */
b34976b6 1011 FALSE, /* pc_relative */
5bd4f169 1012 0, /* bitpos */
f9c6b907 1013 complain_overflow_signed, /* complain_on_overflow */
805fc799 1014 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 1015 "R_PPC64_TOC16_HA", /* name */
b34976b6 1016 FALSE, /* partial_inplace */
5bd4f169
AM		 1017 0, /* src_mask */
1018 0xffff, /* dst_mask */
b34976b6 1019 FALSE), /* pcrel_offset */
5bd4f169
AM		 1020
1021 /* 64-bit relocation; insert value of TOC base (.TOC.). */
1022
1023 /* R_PPC64_TOC 51 doubleword64 .TOC. */
1024 HOWTO (R_PPC64_TOC, /* type */
1025 0, /* rightshift */
1026 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1027 64, /* bitsize */
b34976b6 1028 FALSE, /* pc_relative */
5bd4f169 1029 0, /* bitpos */
b80eed39 1030 complain_overflow_dont, /* complain_on_overflow */
805fc799 1031 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 1032 "R_PPC64_TOC", /* name */
b34976b6 1033 FALSE, /* partial_inplace */
5bd4f169 1034 0, /* src_mask */
f5e87a1d 1035 ONES (64), /* dst_mask */
b34976b6 1036 FALSE), /* pcrel_offset */
5bd4f169
AM		 1037
1038 /* Like R_PPC64_GOT16, but also informs the link editor that the
1039 value to relocate may (!) refer to a PLT entry which the link
1040 editor (a) may replace with the symbol value. If the link editor
1041 is unable to fully resolve the symbol, it may (b) create a PLT
1042 entry and store the address to the new PLT entry in the GOT.
1043 This permits lazy resolution of function symbols at run time.
1044 The link editor may also skip all of this and just (c) emit a
1045 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1046 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1047 HOWTO (R_PPC64_PLTGOT16, /* type */
1048 0, /* rightshift */
1049 1, /* size (0 = byte, 1 = short, 2 = long) */
1050 16, /* bitsize */
b34976b6 1051 FALSE, /* pc_relative */
5bd4f169
AM		 1052 0, /* bitpos */
1053 complain_overflow_signed, /* complain_on_overflow */
805fc799 1054 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 1055 "R_PPC64_PLTGOT16", /* name */
1056 FALSE, /* partial_inplace */
1057 0, /* src_mask */
1058 0xffff, /* dst_mask */
1059 FALSE), /* pcrel_offset */
1060
1061 /* Like R_PPC64_PLTGOT16, but without overflow. */
1062 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1063 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1064 0, /* rightshift */
1065 1, /* size (0 = byte, 1 = short, 2 = long) */
1066 16, /* bitsize */
1067 FALSE, /* pc_relative */
1068 0, /* bitpos */
1069 complain_overflow_dont, /* complain_on_overflow */
1070 ppc64_elf_unhandled_reloc, /* special_function */
1071 "R_PPC64_PLTGOT16_LO", /* name */
1072 FALSE, /* partial_inplace */
1073 0, /* src_mask */
1074 0xffff, /* dst_mask */
1075 FALSE), /* pcrel_offset */
1076
1077 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1078 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1079 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1080 16, /* rightshift */
1081 1, /* size (0 = byte, 1 = short, 2 = long) */
1082 16, /* bitsize */
1083 FALSE, /* pc_relative */
1084 0, /* bitpos */
f9c6b907 1085 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1086 ppc64_elf_unhandled_reloc, /* special_function */
1087 "R_PPC64_PLTGOT16_HI", /* name */
1088 FALSE, /* partial_inplace */
1089 0, /* src_mask */
1090 0xffff, /* dst_mask */
1091 FALSE), /* pcrel_offset */
1092
1093 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1094 1 if the contents of the low 16 bits, treated as a signed number,
1095 is negative. */
1096 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1097 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1098 16, /* rightshift */
1099 1, /* size (0 = byte, 1 = short, 2 = long) */
1100 16, /* bitsize */
1101 FALSE, /* pc_relative */
1102 0, /* bitpos */
f9c6b907 1103 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1104 ppc64_elf_unhandled_reloc, /* special_function */
1105 "R_PPC64_PLTGOT16_HA", /* name */
1106 FALSE, /* partial_inplace */
1107 0, /* src_mask */
1108 0xffff, /* dst_mask */
1109 FALSE), /* pcrel_offset */
1110
1111 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1112 HOWTO (R_PPC64_ADDR16_DS, /* type */
1113 0, /* rightshift */
1114 1, /* size (0 = byte, 1 = short, 2 = long) */
1115 16, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
b80eed39 1118 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_PPC64_ADDR16_DS", /* name */
1121 FALSE, /* partial_inplace */
1122 0, /* src_mask */
1123 0xfffc, /* dst_mask */
1124 FALSE), /* pcrel_offset */
1125
1126 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1127 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1128 0, /* rightshift */
1129 1, /* size (0 = byte, 1 = short, 2 = long) */
1130 16, /* bitsize */
1131 FALSE, /* pc_relative */
1132 0, /* bitpos */
1133 complain_overflow_dont,/* complain_on_overflow */
1134 bfd_elf_generic_reloc, /* special_function */
1135 "R_PPC64_ADDR16_LO_DS",/* name */
1136 FALSE, /* partial_inplace */
1137 0, /* src_mask */
1138 0xfffc, /* dst_mask */
1139 FALSE), /* pcrel_offset */
1140
1141 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1142 HOWTO (R_PPC64_GOT16_DS, /* type */
1143 0, /* rightshift */
1144 1, /* size (0 = byte, 1 = short, 2 = long) */
1145 16, /* bitsize */
1146 FALSE, /* pc_relative */
1147 0, /* bitpos */
1148 complain_overflow_signed, /* complain_on_overflow */
1149 ppc64_elf_unhandled_reloc, /* special_function */
1150 "R_PPC64_GOT16_DS", /* name */
1151 FALSE, /* partial_inplace */
1152 0, /* src_mask */
1153 0xfffc, /* dst_mask */
1154 FALSE), /* pcrel_offset */
1155
1156 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1157 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1158 0, /* rightshift */
1159 1, /* size (0 = byte, 1 = short, 2 = long) */
1160 16, /* bitsize */
1161 FALSE, /* pc_relative */
1162 0, /* bitpos */
1163 complain_overflow_dont, /* complain_on_overflow */
1164 ppc64_elf_unhandled_reloc, /* special_function */
1165 "R_PPC64_GOT16_LO_DS", /* name */
1166 FALSE, /* partial_inplace */
1167 0, /* src_mask */
1168 0xfffc, /* dst_mask */
1169 FALSE), /* pcrel_offset */
1170
1171 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1172 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1173 0, /* rightshift */
1174 1, /* size (0 = byte, 1 = short, 2 = long) */
1175 16, /* bitsize */
1176 FALSE, /* pc_relative */
1177 0, /* bitpos */
1178 complain_overflow_dont, /* complain_on_overflow */
1179 ppc64_elf_unhandled_reloc, /* special_function */
1180 "R_PPC64_PLT16_LO_DS", /* name */
1181 FALSE, /* partial_inplace */
1182 0, /* src_mask */
1183 0xfffc, /* dst_mask */
1184 FALSE), /* pcrel_offset */
1185
1186 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1187 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1188 0, /* rightshift */
1189 1, /* size (0 = byte, 1 = short, 2 = long) */
1190 16, /* bitsize */
1191 FALSE, /* pc_relative */
1192 0, /* bitpos */
b80eed39 1193 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1194 ppc64_elf_sectoff_reloc, /* special_function */
1195 "R_PPC64_SECTOFF_DS", /* name */
1196 FALSE, /* partial_inplace */
1197 0, /* src_mask */
1198 0xfffc, /* dst_mask */
1199 FALSE), /* pcrel_offset */
1200
1201 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1202 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1203 0, /* rightshift */
1204 1, /* size (0 = byte, 1 = short, 2 = long) */
1205 16, /* bitsize */
1206 FALSE, /* pc_relative */
1207 0, /* bitpos */
1208 complain_overflow_dont, /* complain_on_overflow */
1209 ppc64_elf_sectoff_reloc, /* special_function */
1210 "R_PPC64_SECTOFF_LO_DS",/* name */
1211 FALSE, /* partial_inplace */
1212 0, /* src_mask */
1213 0xfffc, /* dst_mask */
1214 FALSE), /* pcrel_offset */
1215
1216 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1217 HOWTO (R_PPC64_TOC16_DS, /* type */
1218 0, /* rightshift */
1219 1, /* size (0 = byte, 1 = short, 2 = long) */
1220 16, /* bitsize */
1221 FALSE, /* pc_relative */
1222 0, /* bitpos */
1223 complain_overflow_signed, /* complain_on_overflow */
1224 ppc64_elf_toc_reloc, /* special_function */
1225 "R_PPC64_TOC16_DS", /* name */
1226 FALSE, /* partial_inplace */
1227 0, /* src_mask */
1228 0xfffc, /* dst_mask */
1229 FALSE), /* pcrel_offset */
1230
1231 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1232 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1233 0, /* rightshift */
1234 1, /* size (0 = byte, 1 = short, 2 = long) */
1235 16, /* bitsize */
1236 FALSE, /* pc_relative */
1237 0, /* bitpos */
1238 complain_overflow_dont, /* complain_on_overflow */
1239 ppc64_elf_toc_reloc, /* special_function */
1240 "R_PPC64_TOC16_LO_DS", /* name */
1241 FALSE, /* partial_inplace */
1242 0, /* src_mask */
1243 0xfffc, /* dst_mask */
1244 FALSE), /* pcrel_offset */
1245
1246 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1247 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
6bfdb61b 1248 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
411e1bfb
AM		 1249 0, /* rightshift */
1250 1, /* size (0 = byte, 1 = short, 2 = long) */
1251 16, /* bitsize */
1252 FALSE, /* pc_relative */
1253 0, /* bitpos */
1254 complain_overflow_signed, /* complain_on_overflow */
1255 ppc64_elf_unhandled_reloc, /* special_function */
1256 "R_PPC64_PLTGOT16_DS", /* name */
1257 FALSE, /* partial_inplace */
1258 0, /* src_mask */
1259 0xfffc, /* dst_mask */
1260 FALSE), /* pcrel_offset */
1261
1262 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1263 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1264 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1265 0, /* rightshift */
1266 1, /* size (0 = byte, 1 = short, 2 = long) */
1267 16, /* bitsize */
1268 FALSE, /* pc_relative */
1269 0, /* bitpos */
1270 complain_overflow_dont, /* complain_on_overflow */
1271 ppc64_elf_unhandled_reloc, /* special_function */
1272 "R_PPC64_PLTGOT16_LO_DS",/* name */
1273 FALSE, /* partial_inplace */
1274 0, /* src_mask */
1275 0xfffc, /* dst_mask */
1276 FALSE), /* pcrel_offset */
1277
727fc41e 1278 /* Marker relocs for TLS. */
411e1bfb
AM		 1279 HOWTO (R_PPC64_TLS,
1280 0, /* rightshift */
1281 2, /* size (0 = byte, 1 = short, 2 = long) */
1282 32, /* bitsize */
1283 FALSE, /* pc_relative */
1284 0, /* bitpos */
1285 complain_overflow_dont, /* complain_on_overflow */
1286 bfd_elf_generic_reloc, /* special_function */
1287 "R_PPC64_TLS", /* name */
1288 FALSE, /* partial_inplace */
1289 0, /* src_mask */
1290 0, /* dst_mask */
1291 FALSE), /* pcrel_offset */
1292
727fc41e
AM		 1293 HOWTO (R_PPC64_TLSGD,
1294 0, /* rightshift */
1295 2, /* size (0 = byte, 1 = short, 2 = long) */
1296 32, /* bitsize */
1297 FALSE, /* pc_relative */
1298 0, /* bitpos */
1299 complain_overflow_dont, /* complain_on_overflow */
1300 bfd_elf_generic_reloc, /* special_function */
1301 "R_PPC64_TLSGD", /* name */
1302 FALSE, /* partial_inplace */
1303 0, /* src_mask */
1304 0, /* dst_mask */
1305 FALSE), /* pcrel_offset */
1306
1307 HOWTO (R_PPC64_TLSLD,
1308 0, /* rightshift */
1309 2, /* size (0 = byte, 1 = short, 2 = long) */
1310 32, /* bitsize */
1311 FALSE, /* pc_relative */
1312 0, /* bitpos */
1313 complain_overflow_dont, /* complain_on_overflow */
1314 bfd_elf_generic_reloc, /* special_function */
1315 "R_PPC64_TLSLD", /* name */
1316 FALSE, /* partial_inplace */
1317 0, /* src_mask */
1318 0, /* dst_mask */
1319 FALSE), /* pcrel_offset */
1320
3b421ab3
AM		 1321 HOWTO (R_PPC64_TOCSAVE,
1322 0, /* rightshift */
1323 2, /* size (0 = byte, 1 = short, 2 = long) */
1324 32, /* bitsize */
1325 FALSE, /* pc_relative */
1326 0, /* bitpos */
1327 complain_overflow_dont, /* complain_on_overflow */
1328 bfd_elf_generic_reloc, /* special_function */
1329 "R_PPC64_TOCSAVE", /* name */
1330 FALSE, /* partial_inplace */
1331 0, /* src_mask */
1332 0, /* dst_mask */
1333 FALSE), /* pcrel_offset */
1334
411e1bfb
AM		 1335 /* Computes the load module index of the load module that contains the
1336 definition of its TLS sym. */
1337 HOWTO (R_PPC64_DTPMOD64,
1338 0, /* rightshift */
1339 4, /* size (0 = byte, 1 = short, 2 = long) */
1340 64, /* bitsize */
1341 FALSE, /* pc_relative */
1342 0, /* bitpos */
1343 complain_overflow_dont, /* complain_on_overflow */
1344 ppc64_elf_unhandled_reloc, /* special_function */
1345 "R_PPC64_DTPMOD64", /* name */
1346 FALSE, /* partial_inplace */
1347 0, /* src_mask */
1348 ONES (64), /* dst_mask */
1349 FALSE), /* pcrel_offset */
1350
1351 /* Computes a dtv-relative displacement, the difference between the value
1352 of sym+add and the base address of the thread-local storage block that
1353 contains the definition of sym, minus 0x8000. */
1354 HOWTO (R_PPC64_DTPREL64,
1355 0, /* rightshift */
1356 4, /* size (0 = byte, 1 = short, 2 = long) */
1357 64, /* bitsize */
1358 FALSE, /* pc_relative */
1359 0, /* bitpos */
1360 complain_overflow_dont, /* complain_on_overflow */
1361 ppc64_elf_unhandled_reloc, /* special_function */
1362 "R_PPC64_DTPREL64", /* name */
1363 FALSE, /* partial_inplace */
1364 0, /* src_mask */
1365 ONES (64), /* dst_mask */
1366 FALSE), /* pcrel_offset */
1367
1368 /* A 16 bit dtprel reloc. */
1369 HOWTO (R_PPC64_DTPREL16,
1370 0, /* rightshift */
1371 1, /* size (0 = byte, 1 = short, 2 = long) */
1372 16, /* bitsize */
1373 FALSE, /* pc_relative */
1374 0, /* bitpos */
1375 complain_overflow_signed, /* complain_on_overflow */
1376 ppc64_elf_unhandled_reloc, /* special_function */
1377 "R_PPC64_DTPREL16", /* name */
1378 FALSE, /* partial_inplace */
1379 0, /* src_mask */
1380 0xffff, /* dst_mask */
1381 FALSE), /* pcrel_offset */
1382
1383 /* Like DTPREL16, but no overflow. */
1384 HOWTO (R_PPC64_DTPREL16_LO,
1385 0, /* rightshift */
1386 1, /* size (0 = byte, 1 = short, 2 = long) */
1387 16, /* bitsize */
1388 FALSE, /* pc_relative */
1389 0, /* bitpos */
1390 complain_overflow_dont, /* complain_on_overflow */
1391 ppc64_elf_unhandled_reloc, /* special_function */
1392 "R_PPC64_DTPREL16_LO", /* name */
1393 FALSE, /* partial_inplace */
1394 0, /* src_mask */
1395 0xffff, /* dst_mask */
1396 FALSE), /* pcrel_offset */
1397
1398 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1399 HOWTO (R_PPC64_DTPREL16_HI,
1400 16, /* rightshift */
1401 1, /* size (0 = byte, 1 = short, 2 = long) */
1402 16, /* bitsize */
1403 FALSE, /* pc_relative */
1404 0, /* bitpos */
f9c6b907 1405 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1406 ppc64_elf_unhandled_reloc, /* special_function */
1407 "R_PPC64_DTPREL16_HI", /* name */
1408 FALSE, /* partial_inplace */
1409 0, /* src_mask */
1410 0xffff, /* dst_mask */
1411 FALSE), /* pcrel_offset */
1412
1413 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1414 HOWTO (R_PPC64_DTPREL16_HA,
1415 16, /* rightshift */
1416 1, /* size (0 = byte, 1 = short, 2 = long) */
1417 16, /* bitsize */
1418 FALSE, /* pc_relative */
1419 0, /* bitpos */
f9c6b907 1420 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1421 ppc64_elf_unhandled_reloc, /* special_function */
1422 "R_PPC64_DTPREL16_HA", /* name */
1423 FALSE, /* partial_inplace */
1424 0, /* src_mask */
1425 0xffff, /* dst_mask */
1426 FALSE), /* pcrel_offset */
1427
1428 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1429 HOWTO (R_PPC64_DTPREL16_HIGHER,
1430 32, /* rightshift */
1431 1, /* size (0 = byte, 1 = short, 2 = long) */
1432 16, /* bitsize */
1433 FALSE, /* pc_relative */
1434 0, /* bitpos */
1435 complain_overflow_dont, /* complain_on_overflow */
1436 ppc64_elf_unhandled_reloc, /* special_function */
1437 "R_PPC64_DTPREL16_HIGHER", /* name */
1438 FALSE, /* partial_inplace */
1439 0, /* src_mask */
1440 0xffff, /* dst_mask */
1441 FALSE), /* pcrel_offset */
1442
1443 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1444 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1445 32, /* rightshift */
1446 1, /* size (0 = byte, 1 = short, 2 = long) */
1447 16, /* bitsize */
1448 FALSE, /* pc_relative */
1449 0, /* bitpos */
1450 complain_overflow_dont, /* complain_on_overflow */
1451 ppc64_elf_unhandled_reloc, /* special_function */
1452 "R_PPC64_DTPREL16_HIGHERA", /* name */
1453 FALSE, /* partial_inplace */
1454 0, /* src_mask */
1455 0xffff, /* dst_mask */
1456 FALSE), /* pcrel_offset */
1457
1458 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1459 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1460 48, /* rightshift */
1461 1, /* size (0 = byte, 1 = short, 2 = long) */
1462 16, /* bitsize */
1463 FALSE, /* pc_relative */
1464 0, /* bitpos */
1465 complain_overflow_dont, /* complain_on_overflow */
1466 ppc64_elf_unhandled_reloc, /* special_function */
1467 "R_PPC64_DTPREL16_HIGHEST", /* name */
1468 FALSE, /* partial_inplace */
1469 0, /* src_mask */
1470 0xffff, /* dst_mask */
1471 FALSE), /* pcrel_offset */
1472
1473 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1474 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1475 48, /* rightshift */
1476 1, /* size (0 = byte, 1 = short, 2 = long) */
1477 16, /* bitsize */
1478 FALSE, /* pc_relative */
1479 0, /* bitpos */
1480 complain_overflow_dont, /* complain_on_overflow */
1481 ppc64_elf_unhandled_reloc, /* special_function */
1482 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1483 FALSE, /* partial_inplace */
1484 0, /* src_mask */
1485 0xffff, /* dst_mask */
1486 FALSE), /* pcrel_offset */
1487
1488 /* Like DTPREL16, but for insns with a DS field. */
1489 HOWTO (R_PPC64_DTPREL16_DS,
1490 0, /* rightshift */
1491 1, /* size (0 = byte, 1 = short, 2 = long) */
1492 16, /* bitsize */
1493 FALSE, /* pc_relative */
1494 0, /* bitpos */
1495 complain_overflow_signed, /* complain_on_overflow */
1496 ppc64_elf_unhandled_reloc, /* special_function */
1497 "R_PPC64_DTPREL16_DS", /* name */
1498 FALSE, /* partial_inplace */
1499 0, /* src_mask */
1500 0xfffc, /* dst_mask */
1501 FALSE), /* pcrel_offset */
1502
1503 /* Like DTPREL16_DS, but no overflow. */
1504 HOWTO (R_PPC64_DTPREL16_LO_DS,
1505 0, /* rightshift */
1506 1, /* size (0 = byte, 1 = short, 2 = long) */
1507 16, /* bitsize */
1508 FALSE, /* pc_relative */
1509 0, /* bitpos */
1510 complain_overflow_dont, /* complain_on_overflow */
1511 ppc64_elf_unhandled_reloc, /* special_function */
1512 "R_PPC64_DTPREL16_LO_DS", /* name */
1513 FALSE, /* partial_inplace */
1514 0, /* src_mask */
1515 0xfffc, /* dst_mask */
1516 FALSE), /* pcrel_offset */
1517
1518 /* Computes a tp-relative displacement, the difference between the value of
1519 sym+add and the value of the thread pointer (r13). */
1520 HOWTO (R_PPC64_TPREL64,
1521 0, /* rightshift */
1522 4, /* size (0 = byte, 1 = short, 2 = long) */
1523 64, /* bitsize */
1524 FALSE, /* pc_relative */
1525 0, /* bitpos */
1526 complain_overflow_dont, /* complain_on_overflow */
1527 ppc64_elf_unhandled_reloc, /* special_function */
1528 "R_PPC64_TPREL64", /* name */
1529 FALSE, /* partial_inplace */
1530 0, /* src_mask */
1531 ONES (64), /* dst_mask */
1532 FALSE), /* pcrel_offset */
1533
1534 /* A 16 bit tprel reloc. */
1535 HOWTO (R_PPC64_TPREL16,
1536 0, /* rightshift */
1537 1, /* size (0 = byte, 1 = short, 2 = long) */
1538 16, /* bitsize */
1539 FALSE, /* pc_relative */
1540 0, /* bitpos */
1541 complain_overflow_signed, /* complain_on_overflow */
1542 ppc64_elf_unhandled_reloc, /* special_function */
1543 "R_PPC64_TPREL16", /* name */
1544 FALSE, /* partial_inplace */
1545 0, /* src_mask */
1546 0xffff, /* dst_mask */
1547 FALSE), /* pcrel_offset */
1548
1549 /* Like TPREL16, but no overflow. */
1550 HOWTO (R_PPC64_TPREL16_LO,
1551 0, /* rightshift */
1552 1, /* size (0 = byte, 1 = short, 2 = long) */
1553 16, /* bitsize */
1554 FALSE, /* pc_relative */
1555 0, /* bitpos */
1556 complain_overflow_dont, /* complain_on_overflow */
1557 ppc64_elf_unhandled_reloc, /* special_function */
1558 "R_PPC64_TPREL16_LO", /* name */
1559 FALSE, /* partial_inplace */
1560 0, /* src_mask */
1561 0xffff, /* dst_mask */
1562 FALSE), /* pcrel_offset */
1563
1564 /* Like TPREL16_LO, but next higher group of 16 bits. */
1565 HOWTO (R_PPC64_TPREL16_HI,
1566 16, /* rightshift */
1567 1, /* size (0 = byte, 1 = short, 2 = long) */
1568 16, /* bitsize */
1569 FALSE, /* pc_relative */
1570 0, /* bitpos */
f9c6b907 1571 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1572 ppc64_elf_unhandled_reloc, /* special_function */
1573 "R_PPC64_TPREL16_HI", /* name */
1574 FALSE, /* partial_inplace */
1575 0, /* src_mask */
1576 0xffff, /* dst_mask */
1577 FALSE), /* pcrel_offset */
1578
1579 /* Like TPREL16_HI, but adjust for low 16 bits. */
1580 HOWTO (R_PPC64_TPREL16_HA,
1581 16, /* rightshift */
1582 1, /* size (0 = byte, 1 = short, 2 = long) */
1583 16, /* bitsize */
1584 FALSE, /* pc_relative */
1585 0, /* bitpos */
f9c6b907 1586 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1587 ppc64_elf_unhandled_reloc, /* special_function */
1588 "R_PPC64_TPREL16_HA", /* name */
1589 FALSE, /* partial_inplace */
1590 0, /* src_mask */
1591 0xffff, /* dst_mask */
1592 FALSE), /* pcrel_offset */
1593
1594 /* Like TPREL16_HI, but next higher group of 16 bits. */
1595 HOWTO (R_PPC64_TPREL16_HIGHER,
1596 32, /* rightshift */
1597 1, /* size (0 = byte, 1 = short, 2 = long) */
1598 16, /* bitsize */
1599 FALSE, /* pc_relative */
1600 0, /* bitpos */
1601 complain_overflow_dont, /* complain_on_overflow */
1602 ppc64_elf_unhandled_reloc, /* special_function */
1603 "R_PPC64_TPREL16_HIGHER", /* name */
1604 FALSE, /* partial_inplace */
1605 0, /* src_mask */
1606 0xffff, /* dst_mask */
1607 FALSE), /* pcrel_offset */
1608
1609 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1610 HOWTO (R_PPC64_TPREL16_HIGHERA,
1611 32, /* rightshift */
1612 1, /* size (0 = byte, 1 = short, 2 = long) */
1613 16, /* bitsize */
1614 FALSE, /* pc_relative */
1615 0, /* bitpos */
1616 complain_overflow_dont, /* complain_on_overflow */
1617 ppc64_elf_unhandled_reloc, /* special_function */
1618 "R_PPC64_TPREL16_HIGHERA", /* name */
1619 FALSE, /* partial_inplace */
1620 0, /* src_mask */
1621 0xffff, /* dst_mask */
1622 FALSE), /* pcrel_offset */
1623
1624 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1625 HOWTO (R_PPC64_TPREL16_HIGHEST,
1626 48, /* rightshift */
1627 1, /* size (0 = byte, 1 = short, 2 = long) */
1628 16, /* bitsize */
1629 FALSE, /* pc_relative */
1630 0, /* bitpos */
1631 complain_overflow_dont, /* complain_on_overflow */
1632 ppc64_elf_unhandled_reloc, /* special_function */
1633 "R_PPC64_TPREL16_HIGHEST", /* name */
1634 FALSE, /* partial_inplace */
1635 0, /* src_mask */
1636 0xffff, /* dst_mask */
1637 FALSE), /* pcrel_offset */
1638
1639 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1640 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1641 48, /* rightshift */
1642 1, /* size (0 = byte, 1 = short, 2 = long) */
1643 16, /* bitsize */
1644 FALSE, /* pc_relative */
1645 0, /* bitpos */
1646 complain_overflow_dont, /* complain_on_overflow */
1647 ppc64_elf_unhandled_reloc, /* special_function */
1648 "R_PPC64_TPREL16_HIGHESTA", /* name */
1649 FALSE, /* partial_inplace */
1650 0, /* src_mask */
1651 0xffff, /* dst_mask */
1652 FALSE), /* pcrel_offset */
1653
1654 /* Like TPREL16, but for insns with a DS field. */
1655 HOWTO (R_PPC64_TPREL16_DS,
1656 0, /* rightshift */
1657 1, /* size (0 = byte, 1 = short, 2 = long) */
1658 16, /* bitsize */
1659 FALSE, /* pc_relative */
1660 0, /* bitpos */
1661 complain_overflow_signed, /* complain_on_overflow */
1662 ppc64_elf_unhandled_reloc, /* special_function */
1663 "R_PPC64_TPREL16_DS", /* name */
1664 FALSE, /* partial_inplace */
1665 0, /* src_mask */
1666 0xfffc, /* dst_mask */
1667 FALSE), /* pcrel_offset */
1668
1669 /* Like TPREL16_DS, but no overflow. */
1670 HOWTO (R_PPC64_TPREL16_LO_DS,
1671 0, /* rightshift */
1672 1, /* size (0 = byte, 1 = short, 2 = long) */
1673 16, /* bitsize */
1674 FALSE, /* pc_relative */
1675 0, /* bitpos */
1676 complain_overflow_dont, /* complain_on_overflow */
1677 ppc64_elf_unhandled_reloc, /* special_function */
1678 "R_PPC64_TPREL16_LO_DS", /* name */
1679 FALSE, /* partial_inplace */
1680 0, /* src_mask */
1681 0xfffc, /* dst_mask */
1682 FALSE), /* pcrel_offset */
1683
1684 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1685 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1686 to the first entry relative to the TOC base (r2). */
1687 HOWTO (R_PPC64_GOT_TLSGD16,
1688 0, /* rightshift */
1689 1, /* size (0 = byte, 1 = short, 2 = long) */
1690 16, /* bitsize */
1691 FALSE, /* pc_relative */
1692 0, /* bitpos */
1693 complain_overflow_signed, /* complain_on_overflow */
1694 ppc64_elf_unhandled_reloc, /* special_function */
1695 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1696 FALSE, /* partial_inplace */
5bd4f169
AM		 1697 0, /* src_mask */
1698 0xffff, /* dst_mask */
b34976b6 1699 FALSE), /* pcrel_offset */
5bd4f169 1700
411e1bfb
AM		 1701 /* Like GOT_TLSGD16, but no overflow. */
1702 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1703 0, /* rightshift */
1704 1, /* size (0 = byte, 1 = short, 2 = long) */
1705 16, /* bitsize */
b34976b6 1706 FALSE, /* pc_relative */
5bd4f169
AM		 1707 0, /* bitpos */
1708 complain_overflow_dont, /* complain_on_overflow */
805fc799 1709 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1710 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1711 FALSE, /* partial_inplace */
5bd4f169
AM		 1712 0, /* src_mask */
1713 0xffff, /* dst_mask */
b34976b6 1714 FALSE), /* pcrel_offset */
5bd4f169 1715
411e1bfb
AM		 1716 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1717 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1718 16, /* rightshift */
1719 1, /* size (0 = byte, 1 = short, 2 = long) */
1720 16, /* bitsize */
b34976b6 1721 FALSE, /* pc_relative */
5bd4f169 1722 0, /* bitpos */
f9c6b907 1723 complain_overflow_signed, /* complain_on_overflow */
805fc799 1724 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1725 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1726 FALSE, /* partial_inplace */
5bd4f169
AM		 1727 0, /* src_mask */
1728 0xffff, /* dst_mask */
b34976b6 1729 FALSE), /* pcrel_offset */
5bd4f169 1730
411e1bfb
AM		 1731 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1732 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1733 16, /* rightshift */
1734 1, /* size (0 = byte, 1 = short, 2 = long) */
1735 16, /* bitsize */
b34976b6 1736 FALSE, /* pc_relative */
5bd4f169 1737 0, /* bitpos */
f9c6b907 1738 complain_overflow_signed, /* complain_on_overflow */
805fc799 1739 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1740 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1741 FALSE, /* partial_inplace */
5bd4f169
AM		 1742 0, /* src_mask */
1743 0xffff, /* dst_mask */
b34976b6 1744 FALSE), /* pcrel_offset */
5bd4f169 1745
411e1bfb
AM		 1746 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1747 with values (sym+add)@dtpmod and zero, and computes the offset to the
1748 first entry relative to the TOC base (r2). */
1749 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1750 0, /* rightshift */
1751 1, /* size (0 = byte, 1 = short, 2 = long) */
1752 16, /* bitsize */
b34976b6 1753 FALSE, /* pc_relative */
5bd4f169 1754 0, /* bitpos */
411e1bfb
AM		 1755 complain_overflow_signed, /* complain_on_overflow */
1756 ppc64_elf_unhandled_reloc, /* special_function */
1757 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1758 FALSE, /* partial_inplace */
d006db6c 1759 0, /* src_mask */
411e1bfb 1760 0xffff, /* dst_mask */
b34976b6 1761 FALSE), /* pcrel_offset */
5bd4f169 1762
411e1bfb
AM		 1763 /* Like GOT_TLSLD16, but no overflow. */
1764 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1765 0, /* rightshift */
1766 1, /* size (0 = byte, 1 = short, 2 = long) */
1767 16, /* bitsize */
b34976b6 1768 FALSE, /* pc_relative */
5bd4f169 1769 0, /* bitpos */
411e1bfb
AM		 1770 complain_overflow_dont, /* complain_on_overflow */
1771 ppc64_elf_unhandled_reloc, /* special_function */
1772 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1773 FALSE, /* partial_inplace */
d006db6c 1774 0, /* src_mask */
411e1bfb 1775 0xffff, /* dst_mask */
b34976b6 1776 FALSE), /* pcrel_offset */
5bd4f169 1777
411e1bfb
AM		 1778 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1779 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1780 16, /* rightshift */
5bd4f169
AM		 1781 1, /* size (0 = byte, 1 = short, 2 = long) */
1782 16, /* bitsize */
b34976b6 1783 FALSE, /* pc_relative */
5bd4f169 1784 0, /* bitpos */
f9c6b907 1785 complain_overflow_signed, /* complain_on_overflow */
805fc799 1786 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1787 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1788 FALSE, /* partial_inplace */
d006db6c 1789 0, /* src_mask */
411e1bfb 1790 0xffff, /* dst_mask */
b34976b6 1791 FALSE), /* pcrel_offset */
5bd4f169 1792
411e1bfb
AM		 1793 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1794 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1795 16, /* rightshift */
5bd4f169
AM		 1796 1, /* size (0 = byte, 1 = short, 2 = long) */
1797 16, /* bitsize */
b34976b6 1798 FALSE, /* pc_relative */
5bd4f169 1799 0, /* bitpos */
f9c6b907 1800 complain_overflow_signed, /* complain_on_overflow */
805fc799 1801 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1802 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1803 FALSE, /* partial_inplace */
d006db6c 1804 0, /* src_mask */
411e1bfb 1805 0xffff, /* dst_mask */
b34976b6 1806 FALSE), /* pcrel_offset */
5bd4f169 1807
411e1bfb
AM		 1808 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1809 the offset to the entry relative to the TOC base (r2). */
1810 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1811 0, /* rightshift */
1812 1, /* size (0 = byte, 1 = short, 2 = long) */
1813 16, /* bitsize */
b34976b6 1814 FALSE, /* pc_relative */
5bd4f169 1815 0, /* bitpos */
411e1bfb 1816 complain_overflow_signed, /* complain_on_overflow */
805fc799 1817 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1818 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1819 FALSE, /* partial_inplace */
d006db6c 1820 0, /* src_mask */
5bd4f169 1821 0xfffc, /* dst_mask */
b34976b6 1822 FALSE), /* pcrel_offset */
5bd4f169 1823
411e1bfb
AM		 1824 /* Like GOT_DTPREL16_DS, but no overflow. */
1825 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1826 0, /* rightshift */
c061c2d8
AM		 1827 1, /* size (0 = byte, 1 = short, 2 = long) */
1828 16, /* bitsize */
b34976b6 1829 FALSE, /* pc_relative */
5bd4f169 1830 0, /* bitpos */
411e1bfb
AM		 1831 complain_overflow_dont, /* complain_on_overflow */
1832 ppc64_elf_unhandled_reloc, /* special_function */
1833 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1834 FALSE, /* partial_inplace */
d006db6c 1835 0, /* src_mask */
c061c2d8 1836 0xfffc, /* dst_mask */
b34976b6 1837 FALSE), /* pcrel_offset */
5bd4f169 1838
411e1bfb
AM		 1839 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1840 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1841 16, /* rightshift */
5bd4f169
AM		 1842 1, /* size (0 = byte, 1 = short, 2 = long) */
1843 16, /* bitsize */
b34976b6 1844 FALSE, /* pc_relative */
5bd4f169 1845 0, /* bitpos */
f9c6b907 1846 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1847 ppc64_elf_unhandled_reloc, /* special_function */
1848 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1849 FALSE, /* partial_inplace */
d006db6c 1850 0, /* src_mask */
411e1bfb 1851 0xffff, /* dst_mask */
b34976b6 1852 FALSE), /* pcrel_offset */
5bd4f169 1853
411e1bfb
AM		 1854 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1855 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1856 16, /* rightshift */
1857 1, /* size (0 = byte, 1 = short, 2 = long) */
1858 16, /* bitsize */
1859 FALSE, /* pc_relative */
1860 0, /* bitpos */
f9c6b907 1861 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1862 ppc64_elf_unhandled_reloc, /* special_function */
1863 "R_PPC64_GOT_DTPREL16_HA", /* name */
1864 FALSE, /* partial_inplace */
1865 0, /* src_mask */
1866 0xffff, /* dst_mask */
1867 FALSE), /* pcrel_offset */
1868
1869 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1870 offset to the entry relative to the TOC base (r2). */
1871 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1872 0, /* rightshift */
1873 1, /* size (0 = byte, 1 = short, 2 = long) */
1874 16, /* bitsize */
b34976b6 1875 FALSE, /* pc_relative */
5bd4f169
AM		 1876 0, /* bitpos */
1877 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1878 ppc64_elf_unhandled_reloc, /* special_function */
1879 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1880 FALSE, /* partial_inplace */
d006db6c 1881 0, /* src_mask */
ad8e1ba5 1882 0xfffc, /* dst_mask */
b34976b6 1883 FALSE), /* pcrel_offset */
5bd4f169 1884
411e1bfb
AM		 1885 /* Like GOT_TPREL16_DS, but no overflow. */
1886 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1887 0, /* rightshift */
1888 1, /* size (0 = byte, 1 = short, 2 = long) */
1889 16, /* bitsize */
b34976b6 1890 FALSE, /* pc_relative */
5bd4f169
AM		 1891 0, /* bitpos */
1892 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1893 ppc64_elf_unhandled_reloc, /* special_function */
1894 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1895 FALSE, /* partial_inplace */
d006db6c 1896 0, /* src_mask */
ad8e1ba5 1897 0xfffc, /* dst_mask */
b34976b6 1898 FALSE), /* pcrel_offset */
5bd4f169 1899
411e1bfb
AM		 1900 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1901 HOWTO (R_PPC64_GOT_TPREL16_HI,
1902 16, /* rightshift */
5bd4f169
AM		 1903 1, /* size (0 = byte, 1 = short, 2 = long) */
1904 16, /* bitsize */
b34976b6 1905 FALSE, /* pc_relative */
5bd4f169 1906 0, /* bitpos */
f9c6b907 1907 complain_overflow_signed, /* complain_on_overflow */
805fc799 1908 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1909 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1910 FALSE, /* partial_inplace */
d006db6c 1911 0, /* src_mask */
411e1bfb 1912 0xffff, /* dst_mask */
b34976b6 1913 FALSE), /* pcrel_offset */
5bd4f169 1914
411e1bfb
AM		 1915 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1916 HOWTO (R_PPC64_GOT_TPREL16_HA,
1917 16, /* rightshift */
5bd4f169
AM		 1918 1, /* size (0 = byte, 1 = short, 2 = long) */
1919 16, /* bitsize */
b34976b6 1920 FALSE, /* pc_relative */
5bd4f169 1921 0, /* bitpos */
f9c6b907 1922 complain_overflow_signed, /* complain_on_overflow */
805fc799 1923 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1924 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1925 FALSE, /* partial_inplace */
d006db6c 1926 0, /* src_mask */
411e1bfb 1927 0xffff, /* dst_mask */
b34976b6 1928 FALSE), /* pcrel_offset */
5bd4f169 1929
25f23106
AM		 1930 HOWTO (R_PPC64_JMP_IREL, /* type */
1931 0, /* rightshift */
1932 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1933 0, /* bitsize */
1934 FALSE, /* pc_relative */
1935 0, /* bitpos */
1936 complain_overflow_dont, /* complain_on_overflow */
1937 ppc64_elf_unhandled_reloc, /* special_function */
1938 "R_PPC64_JMP_IREL", /* name */
1939 FALSE, /* partial_inplace */
1940 0, /* src_mask */
1941 0, /* dst_mask */
1942 FALSE), /* pcrel_offset */
1943
e054468f
AM		 1944 HOWTO (R_PPC64_IRELATIVE, /* type */
1945 0, /* rightshift */
1946 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1947 64, /* bitsize */
1948 FALSE, /* pc_relative */
1949 0, /* bitpos */
1950 complain_overflow_dont, /* complain_on_overflow */
1951 bfd_elf_generic_reloc, /* special_function */
1952 "R_PPC64_IRELATIVE", /* name */
1953 FALSE, /* partial_inplace */
1954 0, /* src_mask */
1955 ONES (64), /* dst_mask */
1956 FALSE), /* pcrel_offset */
1957
25f23106
AM		 1958 /* A 16 bit relative relocation. */
1959 HOWTO (R_PPC64_REL16, /* type */
1960 0, /* rightshift */
1961 1, /* size (0 = byte, 1 = short, 2 = long) */
1962 16, /* bitsize */
1963 TRUE, /* pc_relative */
1964 0, /* bitpos */
b80eed39 1965 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 1966 bfd_elf_generic_reloc, /* special_function */
1967 "R_PPC64_REL16", /* name */
1968 FALSE, /* partial_inplace */
1969 0, /* src_mask */
1970 0xffff, /* dst_mask */
1971 TRUE), /* pcrel_offset */
1972
1973 /* A 16 bit relative relocation without overflow. */
1974 HOWTO (R_PPC64_REL16_LO, /* type */
1975 0, /* rightshift */
1976 1, /* size (0 = byte, 1 = short, 2 = long) */
1977 16, /* bitsize */
1978 TRUE, /* pc_relative */
1979 0, /* bitpos */
1980 complain_overflow_dont,/* complain_on_overflow */
1981 bfd_elf_generic_reloc, /* special_function */
1982 "R_PPC64_REL16_LO", /* name */
1983 FALSE, /* partial_inplace */
1984 0, /* src_mask */
1985 0xffff, /* dst_mask */
1986 TRUE), /* pcrel_offset */
1987
1988 /* The high order 16 bits of a relative address. */
1989 HOWTO (R_PPC64_REL16_HI, /* type */
1990 16, /* rightshift */
1991 1, /* size (0 = byte, 1 = short, 2 = long) */
1992 16, /* bitsize */
1993 TRUE, /* pc_relative */
1994 0, /* bitpos */
f9c6b907 1995 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 1996 bfd_elf_generic_reloc, /* special_function */
1997 "R_PPC64_REL16_HI", /* name */
1998 FALSE, /* partial_inplace */
1999 0, /* src_mask */
2000 0xffff, /* dst_mask */
2001 TRUE), /* pcrel_offset */
2002
2003 /* The high order 16 bits of a relative address, plus 1 if the contents of
2004 the low 16 bits, treated as a signed number, is negative. */
2005 HOWTO (R_PPC64_REL16_HA, /* type */
2006 16, /* rightshift */
2007 1, /* size (0 = byte, 1 = short, 2 = long) */
2008 16, /* bitsize */
2009 TRUE, /* pc_relative */
2010 0, /* bitpos */
f9c6b907 2011 complain_overflow_signed, /* complain_on_overflow */
25f23106
AM		 2012 ppc64_elf_ha_reloc, /* special_function */
2013 "R_PPC64_REL16_HA", /* name */
2014 FALSE, /* partial_inplace */
2015 0, /* src_mask */
2016 0xffff, /* dst_mask */
2017 TRUE), /* pcrel_offset */
2018
f9c6b907
AM		 2019 /* Like R_PPC64_ADDR16_HI, but no overflow. */
2020 HOWTO (R_PPC64_ADDR16_HIGH, /* type */
2021 16, /* rightshift */
2022 1, /* size (0 = byte, 1 = short, 2 = long) */
2023 16, /* bitsize */
2024 FALSE, /* pc_relative */
2025 0, /* bitpos */
2026 complain_overflow_dont, /* complain_on_overflow */
2027 bfd_elf_generic_reloc, /* special_function */
2028 "R_PPC64_ADDR16_HIGH", /* name */
2029 FALSE, /* partial_inplace */
2030 0, /* src_mask */
2031 0xffff, /* dst_mask */
2032 FALSE), /* pcrel_offset */
2033
2034 /* Like R_PPC64_ADDR16_HA, but no overflow. */
2035 HOWTO (R_PPC64_ADDR16_HIGHA, /* type */
2036 16, /* rightshift */
2037 1, /* size (0 = byte, 1 = short, 2 = long) */
2038 16, /* bitsize */
2039 FALSE, /* pc_relative */
2040 0, /* bitpos */
2041 complain_overflow_dont, /* complain_on_overflow */
2042 ppc64_elf_ha_reloc, /* special_function */
2043 "R_PPC64_ADDR16_HIGHA", /* name */
2044 FALSE, /* partial_inplace */
2045 0, /* src_mask */
2046 0xffff, /* dst_mask */
2047 FALSE), /* pcrel_offset */
2048
2049 /* Like R_PPC64_DTPREL16_HI, but no overflow. */
2050 HOWTO (R_PPC64_DTPREL16_HIGH,
2051 16, /* rightshift */
2052 1, /* size (0 = byte, 1 = short, 2 = long) */
2053 16, /* bitsize */
2054 FALSE, /* pc_relative */
2055 0, /* bitpos */
2056 complain_overflow_dont, /* complain_on_overflow */
2057 ppc64_elf_unhandled_reloc, /* special_function */
2058 "R_PPC64_DTPREL16_HIGH", /* name */
2059 FALSE, /* partial_inplace */
2060 0, /* src_mask */
2061 0xffff, /* dst_mask */
2062 FALSE), /* pcrel_offset */
2063
2064 /* Like R_PPC64_DTPREL16_HA, but no overflow. */
2065 HOWTO (R_PPC64_DTPREL16_HIGHA,
2066 16, /* rightshift */
2067 1, /* size (0 = byte, 1 = short, 2 = long) */
2068 16, /* bitsize */
2069 FALSE, /* pc_relative */
2070 0, /* bitpos */
2071 complain_overflow_dont, /* complain_on_overflow */
2072 ppc64_elf_unhandled_reloc, /* special_function */
2073 "R_PPC64_DTPREL16_HIGHA", /* name */
2074 FALSE, /* partial_inplace */
2075 0, /* src_mask */
2076 0xffff, /* dst_mask */
2077 FALSE), /* pcrel_offset */
2078
2079 /* Like R_PPC64_TPREL16_HI, but no overflow. */
2080 HOWTO (R_PPC64_TPREL16_HIGH,
2081 16, /* rightshift */
2082 1, /* size (0 = byte, 1 = short, 2 = long) */
2083 16, /* bitsize */
2084 FALSE, /* pc_relative */
2085 0, /* bitpos */
2086 complain_overflow_dont, /* complain_on_overflow */
2087 ppc64_elf_unhandled_reloc, /* special_function */
2088 "R_PPC64_TPREL16_HIGH", /* name */
2089 FALSE, /* partial_inplace */
2090 0, /* src_mask */
2091 0xffff, /* dst_mask */
2092 FALSE), /* pcrel_offset */
2093
2094 /* Like R_PPC64_TPREL16_HA, but no overflow. */
2095 HOWTO (R_PPC64_TPREL16_HIGHA,
2096 16, /* rightshift */
2097 1, /* size (0 = byte, 1 = short, 2 = long) */
2098 16, /* bitsize */
2099 FALSE, /* pc_relative */
2100 0, /* bitpos */
2101 complain_overflow_dont, /* complain_on_overflow */
2102 ppc64_elf_unhandled_reloc, /* special_function */
2103 "R_PPC64_TPREL16_HIGHA", /* name */
2104 FALSE, /* partial_inplace */
2105 0, /* src_mask */
2106 0xffff, /* dst_mask */
2107 FALSE), /* pcrel_offset */
2108
45965137
AM		 2109 /* Like ADDR64, but use local entry point of function. */
2110 HOWTO (R_PPC64_ADDR64_LOCAL, /* type */
2111 0, /* rightshift */
2112 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
2113 64, /* bitsize */
2114 FALSE, /* pc_relative */
2115 0, /* bitpos */
2116 complain_overflow_dont, /* complain_on_overflow */
2117 bfd_elf_generic_reloc, /* special_function */
2118 "R_PPC64_ADDR64_LOCAL", /* name */
2119 FALSE, /* partial_inplace */
2120 0, /* src_mask */
2121 ONES (64), /* dst_mask */
2122 FALSE), /* pcrel_offset */
2123
5bd4f169
AM		 2124 /* GNU extension to record C++ vtable hierarchy. */
2125 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
2126 0, /* rightshift */
2127 0, /* size (0 = byte, 1 = short, 2 = long) */
2128 0, /* bitsize */
b34976b6 2129 FALSE, /* pc_relative */
5bd4f169
AM		 2130 0, /* bitpos */
2131 complain_overflow_dont, /* complain_on_overflow */
2132 NULL, /* special_function */
2133 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 2134 FALSE, /* partial_inplace */
5bd4f169
AM		 2135 0, /* src_mask */
2136 0, /* dst_mask */
b34976b6 2137 FALSE), /* pcrel_offset */
5bd4f169
AM		 2138
2139 /* GNU extension to record C++ vtable member usage. */
2140 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
2141 0, /* rightshift */
2142 0, /* size (0 = byte, 1 = short, 2 = long) */
2143 0, /* bitsize */
b34976b6 2144 FALSE, /* pc_relative */
5bd4f169
AM		 2145 0, /* bitpos */
2146 complain_overflow_dont, /* complain_on_overflow */
2147 NULL, /* special_function */
2148 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 2149 FALSE, /* partial_inplace */
5bd4f169
AM		 2150 0, /* src_mask */
2151 0, /* dst_mask */
b34976b6 2152 FALSE), /* pcrel_offset */
5bd4f169
AM		 2153};
2154
2155\f
2156/* Initialize the ppc64_elf_howto_table, so that linear accesses can
2157 be done. */
2158
2159static void
4ce794b7 2160ppc_howto_init (void)
5bd4f169
AM		 2161{
2162 unsigned int i, type;
2163
2164 for (i = 0;
2165 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2166 i++)
2167 {
2168 type = ppc64_elf_howto_raw[i].type;
2169 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2170 / sizeof (ppc64_elf_howto_table[0])));
2171 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
2172 }
2173}
2174
2175static reloc_howto_type *
4ce794b7
AM		 2176ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2177 bfd_reloc_code_real_type code)
5bd4f169 2178{
411e1bfb 2179 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 2180
2181 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2182 /* Initialize howto table if needed. */
2183 ppc_howto_init ();
2184
4ce794b7 2185 switch (code)
5bd4f169
AM		 2186 {
2187 default:
4ce794b7 2188 return NULL;
5bd4f169 2189
411e1bfb
AM		 2190 case BFD_RELOC_NONE: r = R_PPC64_NONE;
2191 break;
2192 case BFD_RELOC_32: r = R_PPC64_ADDR32;
2193 break;
2194 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
2195 break;
2196 case BFD_RELOC_16: r = R_PPC64_ADDR16;
2197 break;
2198 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
2199 break;
2200 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
2201 break;
f9c6b907
AM		 2202 case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH;
2203 break;
411e1bfb 2204 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 2205 break;
f9c6b907
AM		 2206 case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA;
2207 break;
411e1bfb 2208 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 2209 break;
411e1bfb 2210 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 2211 break;
411e1bfb 2212 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 2213 break;
411e1bfb 2214 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 2215 break;
411e1bfb 2216 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 2217 break;
411e1bfb 2218 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 2219 break;
411e1bfb 2220 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 2221 break;
411e1bfb 2222 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 2223 break;
411e1bfb 2224 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 2225 break;
411e1bfb 2226 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 2227 break;
411e1bfb 2228 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 2229 break;
411e1bfb 2230 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 2231 break;
411e1bfb 2232 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 2233 break;
411e1bfb 2234 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 2235 break;
411e1bfb 2236 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 2237 break;
411e1bfb 2238 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 2239 break;
411e1bfb 2240 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 2241 break;
411e1bfb 2242 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 2243 break;
411e1bfb 2244 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 2245 break;
411e1bfb 2246 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 2247 break;
411e1bfb 2248 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 2249 break;
411e1bfb 2250 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 2251 break;
411e1bfb 2252 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 2253 break;
411e1bfb 2254 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 2255 break;
411e1bfb 2256 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 2257 break;
411e1bfb 2258 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 2259 break;
411e1bfb 2260 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 2261 break;
411e1bfb 2262 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 2263 break;
411e1bfb 2264 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 2265 break;
411e1bfb 2266 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 2267 break;
411e1bfb 2268 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 2269 break;
411e1bfb 2270 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 2271 break;
411e1bfb 2272 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 2273 break;
411e1bfb 2274 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 2275 break;
411e1bfb 2276 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 2277 break;
411e1bfb 2278 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 2279 break;
411e1bfb 2280 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 2281 break;
411e1bfb 2282 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 2283 break;
411e1bfb 2284 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 2285 break;
411e1bfb 2286 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 2287 break;
411e1bfb 2288 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 2289 break;
411e1bfb 2290 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 2291 break;
411e1bfb 2292 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 2293 break;
411e1bfb 2294 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 2295 break;
411e1bfb 2296 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 2297 break;
411e1bfb 2298 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 2299 break;
411e1bfb 2300 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 2301 break;
411e1bfb 2302 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 2303 break;
411e1bfb 2304 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 2305 break;
411e1bfb 2306 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2307 break;
411e1bfb 2308 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2309 break;
411e1bfb 2310 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2311 break;
411e1bfb 2312 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2313 break;
727fc41e
AM		 2314 case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD;
2315 break;
2316 case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD;
2317 break;
411e1bfb 2318 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2319 break;
411e1bfb 2320 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2321 break;
411e1bfb 2322 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2323 break;
411e1bfb 2324 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2325 break;
f9c6b907
AM		 2326 case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH;
2327 break;
411e1bfb 2328 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2329 break;
f9c6b907
AM		 2330 case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA;
2331 break;
411e1bfb 2332 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2333 break;
411e1bfb
AM		 2334 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2335 break;
2336 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2337 break;
2338 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2339 break;
f9c6b907
AM		 2340 case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH;
2341 break;
411e1bfb
AM		 2342 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2343 break;
f9c6b907
AM		 2344 case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA;
2345 break;
411e1bfb
AM		 2346 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2347 break;
2348 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2349 break;
2350 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2351 break;
2352 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2353 break;
2354 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2355 break;
2356 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2357 break;
2358 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2359 break;
2360 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2361 break;
2362 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2363 break;
2364 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2365 break;
2366 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2367 break;
2368 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2369 break;
2370 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2371 break;
2372 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2373 break;
2374 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2375 break;
2376 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2377 break;
2378 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2379 break;
2380 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2381 break;
2382 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2383 break;
2384 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2385 break;
2386 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2387 break;
2388 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2389 break;
2390 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2391 break;
2392 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2393 break;
2394 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2395 break;
2396 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2397 break;
2398 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2399 break;
2400 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2401 break;
2402 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2403 break;
25f23106
AM		 2404 case BFD_RELOC_16_PCREL: r = R_PPC64_REL16;
2405 break;
2406 case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO;
2407 break;
2408 case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI;
2409 break;
2410 case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA;
2411 break;
45965137
AM		 2412 case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL;
2413 break;
411e1bfb
AM		 2414 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2415 break;
2416 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2417 break;
2418 }
2419
4ce794b7 2420 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2421};
2422
157090f7
AM		 2423static reloc_howto_type *
2424ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2425 const char *r_name)
2426{
2427 unsigned int i;
2428
2429 for (i = 0;
2430 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2431 i++)
2432 if (ppc64_elf_howto_raw[i].name != NULL
2433 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2434 return &ppc64_elf_howto_raw[i];
2435
2436 return NULL;
2437}
2438
5bd4f169
AM		 2439/* Set the howto pointer for a PowerPC ELF reloc. */
2440
2441static void
4ce794b7
AM		 2442ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2443 Elf_Internal_Rela *dst)
5bd4f169 2444{
65f38f15
AM		 2445 unsigned int type;
2446
ef60b7ff 2447 /* Initialize howto table if needed. */
5bd4f169 2448 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2449 ppc_howto_init ();
2450
65f38f15 2451 type = ELF64_R_TYPE (dst->r_info);
d0fb9a8d
JJ		 2452 if (type >= (sizeof (ppc64_elf_howto_table)
2453 / sizeof (ppc64_elf_howto_table[0])))
2454 {
2455 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
3ec2b351
NC		 2456 abfd, (int) type);
2457 type = R_PPC64_NONE;
d0fb9a8d 2458 }
65f38f15 2459 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2460}
2461
04c9666a 2462/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2463
2464static bfd_reloc_status_type
4ce794b7
AM		 2465ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2466 void *data, asection *input_section,
2467 bfd *output_bfd, char **error_message)
5bd4f169 2468{
805fc799
AM		 2469 /* If this is a relocatable link (output_bfd test tells us), just
2470 call the generic function. Any adjustment will be done at final
2471 link time. */
2472 if (output_bfd != NULL)
cedb70c5 2473 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2474 input_section, output_bfd, error_message);
2475
2476 /* Adjust the addend for sign extension of the low 16 bits.
2477 We won't actually be using the low 16 bits, so trashing them
2478 doesn't matter. */
2479 reloc_entry->addend += 0x8000;
2480 return bfd_reloc_continue;
2481}
5bd4f169 2482
2441e016
AM		 2483static bfd_reloc_status_type
2484ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2485 void *data, asection *input_section,
2486 bfd *output_bfd, char **error_message)
2487{
2488 if (output_bfd != NULL)
2489 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2490 input_section, output_bfd, error_message);
2491
699733f6
AM		 2492 if (strcmp (symbol->section->name, ".opd") == 0
2493 && (symbol->section->owner->flags & DYNAMIC) == 0)
2441e016
AM		 2494 {
2495 bfd_vma dest = opd_entry_value (symbol->section,
2496 symbol->value + reloc_entry->addend,
aef36ac1 2497 NULL, NULL, FALSE);
2441e016
AM		 2498 if (dest != (bfd_vma) -1)
2499 reloc_entry->addend = dest - (symbol->value
2500 + symbol->section->output_section->vma
2501 + symbol->section->output_offset);
2502 }
810d4e75
AM		 2503 else
2504 {
2505 elf_symbol_type *elfsym = (elf_symbol_type *) symbol;
2506
2507 if (symbol->section->owner != abfd
2508 && abiversion (symbol->section->owner) >= 2)
2509 {
2510 unsigned int i;
2511
2512 for (i = 0; i < symbol->section->owner->symcount; ++i)
2513 {
2514 asymbol *symdef = symbol->section->owner->outsymbols[i];
2515
2516 if (strcmp (symdef->name, symbol->name) == 0)
2517 {
2518 elfsym = (elf_symbol_type *) symdef;
2519 break;
2520 }
2521 }
2522 }
2523 reloc_entry->addend
2524 += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other);
2525 }
2441e016
AM		 2526 return bfd_reloc_continue;
2527}
2528
805fc799 2529static bfd_reloc_status_type
4ce794b7
AM		 2530ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2531 void *data, asection *input_section,
2532 bfd *output_bfd, char **error_message)
805fc799
AM		 2533{
2534 long insn;
04c9666a 2535 enum elf_ppc64_reloc_type r_type;
805fc799 2536 bfd_size_type octets;
794e51c0
AM		 2537 /* Assume 'at' branch hints. */
2538 bfd_boolean is_isa_v2 = TRUE;
805fc799
AM		 2539
2540 /* If this is a relocatable link (output_bfd test tells us), just
2541 call the generic function. Any adjustment will be done at final
2542 link time. */
5bd4f169 2543 if (output_bfd != NULL)
cedb70c5 2544 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2545 input_section, output_bfd, error_message);
2546
2547 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2548 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2549 insn &= ~(0x01 << 21);
4ce794b7 2550 r_type = reloc_entry->howto->type;
805fc799
AM		 2551 if (r_type == R_PPC64_ADDR14_BRTAKEN
2552 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2553 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799 2554
794e51c0 2555 if (is_isa_v2)
5bd4f169 2556 {
805fc799
AM		 2557 /* Set 'a' bit. This is 0b00010 in BO field for branch
2558 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2559 for branch on CTR insns (BO == 1a00t or 1a01t). */
2560 if ((insn & (0x14 << 21)) == (0x04 << 21))
2561 insn |= 0x02 << 21;
2562 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2563 insn |= 0x08 << 21;
2564 else
2441e016 2565 goto out;
5bd4f169 2566 }
805fc799
AM		 2567 else
2568 {
2569 bfd_vma target = 0;
2570 bfd_vma from;
5bd4f169 2571
805fc799
AM		 2572 if (!bfd_is_com_section (symbol->section))
2573 target = symbol->value;
2574 target += symbol->section->output_section->vma;
2575 target += symbol->section->output_offset;
2576 target += reloc_entry->addend;
5bd4f169 2577
805fc799
AM		 2578 from = (reloc_entry->address
2579 + input_section->output_offset
2580 + input_section->output_section->vma);
5bd4f169 2581
805fc799
AM		 2582 /* Invert 'y' bit if not the default. */
2583 if ((bfd_signed_vma) (target - from) < 0)
2584 insn ^= 0x01 << 21;
2585 }
4ce794b7 2586 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2441e016
AM		 2587 out:
2588 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2589 input_section, output_bfd, error_message);
805fc799 2590}
5bd4f169 2591
805fc799 2592static bfd_reloc_status_type
4ce794b7
AM		 2593ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2594 void *data, asection *input_section,
2595 bfd *output_bfd, char **error_message)
805fc799
AM		 2596{
2597 /* If this is a relocatable link (output_bfd test tells us), just
2598 call the generic function. Any adjustment will be done at final
2599 link time. */
2600 if (output_bfd != NULL)
cedb70c5 2601 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2602 input_section, output_bfd, error_message);
5bd4f169 2603
805fc799
AM		 2604 /* Subtract the symbol section base address. */
2605 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2606 return bfd_reloc_continue;
2607}
2608
805fc799 2609static bfd_reloc_status_type
4ce794b7
AM		 2610ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2611 void *data, asection *input_section,
2612 bfd *output_bfd, char **error_message)
805fc799
AM		 2613{
2614 /* If this is a relocatable link (output_bfd test tells us), just
2615 call the generic function. Any adjustment will be done at final
2616 link time. */
2617 if (output_bfd != NULL)
cedb70c5 2618 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2619 input_section, output_bfd, error_message);
2620
2621 /* Subtract the symbol section base address. */
2622 reloc_entry->addend -= symbol->section->output_section->vma;
2623
2624 /* Adjust the addend for sign extension of the low 16 bits. */
2625 reloc_entry->addend += 0x8000;
2626 return bfd_reloc_continue;
2627}
2628
2629static bfd_reloc_status_type
4ce794b7
AM		 2630ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2631 void *data, asection *input_section,
2632 bfd *output_bfd, char **error_message)
805fc799
AM		 2633{
2634 bfd_vma TOCstart;
2635
2636 /* If this is a relocatable link (output_bfd test tells us), just
2637 call the generic function. Any adjustment will be done at final
2638 link time. */
2639 if (output_bfd != NULL)
cedb70c5 2640 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2641 input_section, output_bfd, error_message);
2642
2643 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2644 if (TOCstart == 0)
1c865ab2 2645 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2646
2647 /* Subtract the TOC base address. */
2648 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2649 return bfd_reloc_continue;
2650}
2651
2652static bfd_reloc_status_type
4ce794b7
AM		 2653ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2654 void *data, asection *input_section,
2655 bfd *output_bfd, char **error_message)
805fc799
AM		 2656{
2657 bfd_vma TOCstart;
2658
2659 /* If this is a relocatable link (output_bfd test tells us), just
2660 call the generic function. Any adjustment will be done at final
2661 link time. */
2662 if (output_bfd != NULL)
cedb70c5 2663 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2664 input_section, output_bfd, error_message);
2665
2666 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2667 if (TOCstart == 0)
1c865ab2 2668 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2669
2670 /* Subtract the TOC base address. */
2671 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2672
2673 /* Adjust the addend for sign extension of the low 16 bits. */
2674 reloc_entry->addend += 0x8000;
2675 return bfd_reloc_continue;
2676}
2677
2678static bfd_reloc_status_type
4ce794b7
AM		 2679ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2680 void *data, asection *input_section,
2681 bfd *output_bfd, char **error_message)
805fc799
AM		 2682{
2683 bfd_vma TOCstart;
2684 bfd_size_type octets;
2685
2686 /* If this is a relocatable link (output_bfd test tells us), just
2687 call the generic function. Any adjustment will be done at final
2688 link time. */
2689 if (output_bfd != NULL)
cedb70c5 2690 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2691 input_section, output_bfd, error_message);
2692
2693 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2694 if (TOCstart == 0)
1c865ab2 2695 TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
805fc799
AM		 2696
2697 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2698 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2699 return bfd_reloc_ok;
2700}
2701
2702static bfd_reloc_status_type
4ce794b7
AM		 2703ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2704 void *data, asection *input_section,
2705 bfd *output_bfd, char **error_message)
805fc799
AM		 2706{
2707 /* If this is a relocatable link (output_bfd test tells us), just
2708 call the generic function. Any adjustment will be done at final
2709 link time. */
2710 if (output_bfd != NULL)
cedb70c5 2711 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2712 input_section, output_bfd, error_message);
2713
2714 if (error_message != NULL)
2715 {
2716 static char buf[60];
2717 sprintf (buf, "generic linker can't handle %s",
2718 reloc_entry->howto->name);
2719 *error_message = buf;
2720 }
2721 return bfd_reloc_dangerous;
2722}
2723
927be08e
AM		 2724/* Track GOT entries needed for a given symbol. We might need more
2725 than one got entry per symbol. */
2726struct got_entry
2727{
2728 struct got_entry *next;
2729
2730 /* The symbol addend that we'll be placing in the GOT. */
2731 bfd_vma addend;
2732
2733 /* Unlike other ELF targets, we use separate GOT entries for the same
2734 symbol referenced from different input files. This is to support
2735 automatic multiple TOC/GOT sections, where the TOC base can vary
2736 from one input file to another. After partitioning into TOC groups
2737 we merge entries within the group.
2738
2739 Point to the BFD owning this GOT entry. */
2740 bfd *owner;
2741
2742 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2743 TLS_TPREL or TLS_DTPREL for tls entries. */
f961d9dd 2744 unsigned char tls_type;
927be08e
AM		 2745
2746 /* Non-zero if got.ent points to real entry. */
f961d9dd 2747 unsigned char is_indirect;
927be08e
AM		 2748
2749 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2750 union
2751 {
2752 bfd_signed_vma refcount;
2753 bfd_vma offset;
2754 struct got_entry *ent;
2755 } got;
2756};
2757
2758/* The same for PLT. */
2759struct plt_entry
2760{
2761 struct plt_entry *next;
2762
2763 bfd_vma addend;
2764
2765 union
2766 {
2767 bfd_signed_vma refcount;
2768 bfd_vma offset;
2769 } plt;
2770};
2771
e717da7e
AM		 2772struct ppc64_elf_obj_tdata
2773{
2774 struct elf_obj_tdata elf;
2775
2776 /* Shortcuts to dynamic linker sections. */
2777 asection *got;
2778 asection *relgot;
2779
b3fac117
AM		 2780 /* Used during garbage collection. We attach global symbols defined
2781 on removed .opd entries to this section so that the sym is removed. */
2782 asection *deleted_section;
81688140 2783
927be08e 2784 /* TLS local dynamic got entry handling. Support for multiple GOT
e717da7e 2785 sections means we potentially need one of these for each input bfd. */
927be08e 2786 struct got_entry tlsld_got;
8860955f 2787
729eabd5
AM		 2788 union {
2789 /* A copy of relocs before they are modified for --emit-relocs. */
2790 Elf_Internal_Rela *relocs;
2791
2792 /* Section contents. */
2793 bfd_byte *contents;
2794 } opd;
d77c8a4b
AM		 2795
2796 /* Nonzero if this bfd has small toc/got relocs, ie. that expect
2797 the reloc to be in the range -32768 to 32767. */
98528052
AM		 2798 unsigned int has_small_toc_reloc : 1;
2799
560c8763
AM		 2800 /* Set if toc/got ha relocs detected not using r2, or lo reloc
2801 instruction not one we handle. */
2802 unsigned int unexpected_toc_insn : 1;
e717da7e
AM		 2803};
2804
2805#define ppc64_elf_tdata(bfd) \
2806 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2807
2808#define ppc64_tlsld_got(bfd) \
2809 (&ppc64_elf_tdata (bfd)->tlsld_got)
2810
0c8d6e5c
AM		 2811#define is_ppc64_elf(bfd) \
2812 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2813 && elf_object_id (bfd) == PPC64_ELF_DATA)
0c8d6e5c 2814
e717da7e
AM		 2815/* Override the generic function because we store some extras. */
2816
2817static bfd_boolean
2818ppc64_elf_mkobject (bfd *abfd)
2819{
0ffa91dd 2820 return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata),
4dfe6ac6 2821 PPC64_ELF_DATA);
e717da7e
AM		 2822}
2823
feee612b
AM		 2824/* Fix bad default arch selected for a 64 bit input bfd when the
2825 default is 32 bit. */
2826
b34976b6 2827static bfd_boolean
4ce794b7 2828ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2829{
2830 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2831 {
2832 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2833
2834 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2835 {
2836 /* Relies on arch after 32 bit default being 64 bit default. */
2837 abfd->arch_info = abfd->arch_info->next;
2838 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2839 }
2840 }
b34976b6 2841 return TRUE;
feee612b
AM		 2842}
2843
d37c89e5
AM		 2844/* Support for core dump NOTE sections. */
2845
2846static bfd_boolean
2847ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2848{
eea6121a 2849 size_t offset, size;
d37c89e5
AM		 2850
2851 if (note->descsz != 504)
2852 return FALSE;
2853
2854 /* pr_cursig */
228e534f 2855 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
d37c89e5
AM		 2856
2857 /* pr_pid */
228e534f 2858 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32);
d37c89e5
AM		 2859
2860 /* pr_reg */
2861 offset = 112;
eea6121a 2862 size = 384;
d37c89e5
AM		 2863
2864 /* Make a ".reg/999" section. */
2865 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2866 size, note->descpos + offset);
d37c89e5
AM		 2867}
2868
2869static bfd_boolean
2870ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2871{
2872 if (note->descsz != 136)
2873 return FALSE;
2874
228e534f 2875 elf_tdata (abfd)->core->pid
bc989cdc 2876 = bfd_get_32 (abfd, note->descdata + 24);
228e534f 2877 elf_tdata (abfd)->core->program
d37c89e5 2878 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
228e534f 2879 elf_tdata (abfd)->core->command
d37c89e5
AM		 2880 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2881
2882 return TRUE;
2883}
2884
183e98be
AM		 2885static char *
2886ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2887 ...)
2888{
2889 switch (note_type)
2890 {
2891 default:
2892 return NULL;
2893
2894 case NT_PRPSINFO:
2895 {
2896 char data[136];
2897 va_list ap;
2898
2899 va_start (ap, note_type);
75cd47ed 2900 memset (data, 0, sizeof (data));
183e98be
AM		 2901 strncpy (data + 40, va_arg (ap, const char *), 16);
2902 strncpy (data + 56, va_arg (ap, const char *), 80);
2903 va_end (ap);
2904 return elfcore_write_note (abfd, buf, bufsiz,
2905 "CORE", note_type, data, sizeof (data));
2906 }
2907
2908 case NT_PRSTATUS:
2909 {
2910 char data[504];
2911 va_list ap;
2912 long pid;
2913 int cursig;
2914 const void *greg;
2915
2916 va_start (ap, note_type);
2917 memset (data, 0, 112);
2918 pid = va_arg (ap, long);
2919 bfd_put_32 (abfd, pid, data + 32);
2920 cursig = va_arg (ap, int);
2921 bfd_put_16 (abfd, cursig, data + 12);
2922 greg = va_arg (ap, const void *);
2923 memcpy (data + 112, greg, 384);
2924 memset (data + 496, 0, 8);
2925 va_end (ap);
2926 return elfcore_write_note (abfd, buf, bufsiz,
2927 "CORE", note_type, data, sizeof (data));
2928 }
2929 }
2930}
2931
5d35169e
AM		 2932/* Add extra PPC sections. */
2933
b35d266b 2934static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
7f4d3958 2935{
0112cd26
NC		 2936 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
2937 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2938 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2939 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2940 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2941 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2942 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 2943};
2944
7c8fe5c4
AM		 2945enum _ppc64_sec_type {
2946 sec_normal = 0,
2947 sec_opd = 1,
2948 sec_toc = 2
2949};
2950
f0abc2a1
AM		 2951struct _ppc64_elf_section_data
2952{
2953 struct bfd_elf_section_data elf;
411e1bfb 2954
f0abc2a1
AM		 2955 union
2956 {
51aecdc5
AM		 2957 /* An array with one entry for each opd function descriptor,
2958 and some spares since opd entries may be either 16 or 24 bytes. */
2959#define OPD_NDX(OFF) ((OFF) >> 4)
74f0fb50
AM		 2960 struct _opd_sec_data
2961 {
2962 /* Points to the function code section for local opd entries. */
2963 asection **func_sec;
2964
2965 /* After editing .opd, adjust references to opd local syms. */
2966 long *adjust;
2967 } opd;
7c8fe5c4 2968
3a71aa26
AM		 2969 /* An array for toc sections, indexed by offset/8. */
2970 struct _toc_sec_data
2971 {
2972 /* Specifies the relocation symbol index used at a given toc offset. */
2973 unsigned *symndx;
2974
2975 /* And the relocation addend. */
2976 bfd_vma *add;
2977 } toc;
7c8fe5c4
AM		 2978 } u;
2979
2980 enum _ppc64_sec_type sec_type:2;
411e1bfb 2981
7c8fe5c4
AM		 2982 /* Flag set when small branches are detected. Used to
2983 select suitable defaults for the stub group size. */
2984 unsigned int has_14bit_branch:1;
f0abc2a1
AM		 2985};
2986
2987#define ppc64_elf_section_data(sec) \
411e1bfb 2988 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2989
2990static bfd_boolean
4ce794b7 2991ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1 2992{
f592407e
AM		 2993 if (!sec->used_by_bfd)
2994 {
2995 struct _ppc64_elf_section_data *sdata;
2996 bfd_size_type amt = sizeof (*sdata);
f0abc2a1 2997
f592407e
AM		 2998 sdata = bfd_zalloc (abfd, amt);
2999 if (sdata == NULL)
3000 return FALSE;
3001 sec->used_by_bfd = sdata;
3002 }
f0abc2a1
AM		 3003
3004 return _bfd_elf_new_section_hook (abfd, sec);
3005}
4025353c 3006
74f0fb50 3007static struct _opd_sec_data *
4025353c
AM		 3008get_opd_info (asection * sec)
3009{
3010 if (sec != NULL
3011 && ppc64_elf_section_data (sec) != NULL
7c8fe5c4 3012 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
74f0fb50 3013 return &ppc64_elf_section_data (sec)->u.opd;
4025353c
AM		 3014 return NULL;
3015}
90e3cdf2
JJ		 3016\f
3017/* Parameters for the qsort hook. */
90e3cdf2
JJ		 3018static bfd_boolean synthetic_relocatable;
3019
699733f6 3020/* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
90e3cdf2
JJ		 3021
3022static int
3023compare_symbols (const void *ap, const void *bp)
3024{
3025 const asymbol *a = * (const asymbol **) ap;
3026 const asymbol *b = * (const asymbol **) bp;
3027
699733f6
AM		 3028 /* Section symbols first. */
3029 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
90e3cdf2 3030 return -1;
699733f6 3031 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
90e3cdf2
JJ		 3032 return 1;
3033
699733f6 3034 /* then .opd symbols. */
ffcfec52
AM		 3035 if (strcmp (a->section->name, ".opd") == 0
3036 && strcmp (b->section->name, ".opd") != 0)
90e3cdf2 3037 return -1;
ffcfec52
AM		 3038 if (strcmp (a->section->name, ".opd") != 0
3039 && strcmp (b->section->name, ".opd") == 0)
90e3cdf2
JJ		 3040 return 1;
3041
699733f6 3042 /* then other code symbols. */
90e3cdf2
JJ		 3043 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3044 == (SEC_CODE | SEC_ALLOC)
3045 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3046 != (SEC_CODE | SEC_ALLOC))
3047 return -1;
3048
3049 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3050 != (SEC_CODE | SEC_ALLOC)
3051 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3052 == (SEC_CODE | SEC_ALLOC))
3053 return 1;
3054
3055 if (synthetic_relocatable)
3056 {
3057 if (a->section->id < b->section->id)
3058 return -1;
3059
3060 if (a->section->id > b->section->id)
3061 return 1;
3062 }
3063
3064 if (a->value + a->section->vma < b->value + b->section->vma)
3065 return -1;
3066
3067 if (a->value + a->section->vma > b->value + b->section->vma)
3068 return 1;
3069
4d35a0aa
AM		 3070 /* For syms with the same value, prefer strong dynamic global function
3071 syms over other syms. */
3072 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
3073 return -1;
3074
3075 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
3076 return 1;
3077
3078 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
3079 return -1;
3080
3081 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
3082 return 1;
3083
3084 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
3085 return -1;
3086
3087 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
3088 return 1;
3089
3090 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
3091 return -1;
3092
3093 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
3094 return 1;
3095
90e3cdf2
JJ		 3096 return 0;
3097}
3098
699733f6 3099/* Search SYMS for a symbol of the given VALUE. */
90e3cdf2 3100
699733f6
AM		 3101static asymbol *
3102sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
90e3cdf2 3103{
699733f6 3104 long mid;
90e3cdf2 3105
699733f6
AM		 3106 if (id == -1)
3107 {
3108 while (lo < hi)
3109 {
3110 mid = (lo + hi) >> 1;
3111 if (syms[mid]->value + syms[mid]->section->vma < value)
3112 lo = mid + 1;
3113 else if (syms[mid]->value + syms[mid]->section->vma > value)
3114 hi = mid;
3115 else
3116 return syms[mid];
3117 }
3118 }
3119 else
3120 {
3121 while (lo < hi)
3122 {
3123 mid = (lo + hi) >> 1;
3124 if (syms[mid]->section->id < id)
3125 lo = mid + 1;
3126 else if (syms[mid]->section->id > id)
3127 hi = mid;
3128 else if (syms[mid]->value < value)
3129 lo = mid + 1;
3130 else if (syms[mid]->value > value)
3131 hi = mid;
3132 else
3133 return syms[mid];
3134 }
3135 }
3136 return NULL;
90e3cdf2
JJ		 3137}
3138
468392fb
AM		 3139static bfd_boolean
3140section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
3141{
3142 bfd_vma vma = *(bfd_vma *) ptr;
3143 return ((section->flags & SEC_ALLOC) != 0
3144 && section->vma <= vma
3145 && vma < section->vma + section->size);
3146}
3147
699733f6 3148/* Create synthetic symbols, effectively restoring "dot-symbol" function
468392fb 3149 entry syms. Also generate @plt symbols for the glink branch table. */
90e3cdf2
JJ		 3150
3151static long
a7535cf3
AM		 3152ppc64_elf_get_synthetic_symtab (bfd *abfd,
3153 long static_count, asymbol **static_syms,
3154 long dyn_count, asymbol **dyn_syms,
c9727e01 3155 asymbol **ret)
90e3cdf2
JJ		 3156{
3157 asymbol *s;
699733f6
AM		 3158 long i;
3159 long count;
90e3cdf2 3160 char *names;
a7535cf3 3161 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
ee67d69a 3162 asection *opd = NULL;
90e3cdf2 3163 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
a7535cf3 3164 asymbol **syms;
ee67d69a 3165 int abi = abiversion (abfd);
90e3cdf2
JJ		 3166
3167 *ret = NULL;
3168
ee67d69a
AM		 3169 if (abi < 2)
3170 {
3171 opd = bfd_get_section_by_name (abfd, ".opd");
3172 if (opd == NULL && abi == 1)
3173 return 0;
3174 }
90e3cdf2 3175
a7535cf3 3176 symcount = static_count;
c9727e01 3177 if (!relocatable)
a7535cf3 3178 symcount += dyn_count;
90e3cdf2 3179 if (symcount == 0)
c9727e01 3180 return 0;
90e3cdf2 3181
a7535cf3
AM		 3182 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
3183 if (syms == NULL)
7356fed5 3184 return -1;
a7535cf3
AM		 3185
3186 if (!relocatable && static_count != 0 && dyn_count != 0)
3187 {
3188 /* Use both symbol tables. */
3189 memcpy (syms, static_syms, static_count * sizeof (*syms));
3190 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
3191 }
3192 else if (!relocatable && static_count == 0)
3193 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
3194 else
3195 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
3196
90e3cdf2 3197 synthetic_relocatable = relocatable;
595da8c5 3198 qsort (syms, symcount, sizeof (*syms), compare_symbols);
90e3cdf2 3199
c9727e01
AM		 3200 if (!relocatable && symcount > 1)
3201 {
3202 long j;
3203 /* Trim duplicate syms, since we may have merged the normal and
3204 dynamic symbols. Actually, we only care about syms that have
3b36f7e6 3205 different values, so trim any with the same value. */
c9727e01
AM		 3206 for (i = 1, j = 1; i < symcount; ++i)
3207 if (syms[i - 1]->value + syms[i - 1]->section->vma
3208 != syms[i]->value + syms[i]->section->vma)
3209 syms[j++] = syms[i];
3210 symcount = j;
3211 }
3212
699733f6 3213 i = 0;
ffcfec52 3214 if (strcmp (syms[i]->section->name, ".opd") == 0)
699733f6
AM		 3215 ++i;
3216 codesecsym = i;
90e3cdf2 3217
699733f6
AM		 3218 for (; i < symcount; ++i)
3219 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3220 != (SEC_CODE | SEC_ALLOC))
3221 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
3222 break;
3223 codesecsymend = i;
90e3cdf2 3224
699733f6
AM		 3225 for (; i < symcount; ++i)
3226 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
3227 break;
3228 secsymend = i;
90e3cdf2 3229
699733f6 3230 for (; i < symcount; ++i)
ffcfec52 3231 if (strcmp (syms[i]->section->name, ".opd") != 0)
699733f6
AM		 3232 break;
3233 opdsymend = i;
90e3cdf2 3234
699733f6
AM		 3235 for (; i < symcount; ++i)
3236 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3237 != (SEC_CODE | SEC_ALLOC))
3238 break;
3239 symcount = i;
3240
c9727e01 3241 count = 0;
90e3cdf2 3242
699733f6 3243 if (relocatable)
90e3cdf2 3244 {
699733f6
AM		 3245 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
3246 arelent *r;
3247 size_t size;
3248 long relcount;
90e3cdf2 3249
468392fb
AM		 3250 if (opdsymend == secsymend)
3251 goto done;
3252
699733f6 3253 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
90e3cdf2 3254 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
7356fed5 3255 if (relcount == 0)
c9727e01 3256 goto done;
90e3cdf2 3257
7356fed5
AM		 3258 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
3259 {
3260 count = -1;
3261 goto done;
3262 }
3263
699733f6 3264 size = 0;
595da8c5 3265 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
699733f6
AM		 3266 {
3267 asymbol *sym;
90e3cdf2 3268
595da8c5 3269 while (r < opd->relocation + relcount
699733f6
AM		 3270 && r->address < syms[i]->value + opd->vma)
3271 ++r;
90e3cdf2 3272
595da8c5 3273 if (r == opd->relocation + relcount)
699733f6 3274 break;
90e3cdf2 3275
699733f6
AM		 3276 if (r->address != syms[i]->value + opd->vma)
3277 continue;
90e3cdf2 3278
699733f6
AM		 3279 if (r->howto->type != R_PPC64_ADDR64)
3280 continue;
90e3cdf2 3281
699733f6
AM		 3282 sym = *r->sym_ptr_ptr;
3283 if (!sym_exists_at (syms, opdsymend, symcount,
3284 sym->section->id, sym->value + r->addend))
3285 {
3286 ++count;
3287 size += sizeof (asymbol);
3288 size += strlen (syms[i]->name) + 2;
3289 }
3290 }
90e3cdf2 3291
699733f6
AM		 3292 s = *ret = bfd_malloc (size);
3293 if (s == NULL)
3294 {
7356fed5 3295 count = -1;
c9727e01 3296 goto done;
699733f6 3297 }
90e3cdf2 3298
699733f6 3299 names = (char *) (s + count);
90e3cdf2 3300
595da8c5 3301 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
90e3cdf2 3302 {
699733f6 3303 asymbol *sym;
90e3cdf2 3304
595da8c5 3305 while (r < opd->relocation + relcount
699733f6
AM		 3306 && r->address < syms[i]->value + opd->vma)
3307 ++r;
90e3cdf2 3308
595da8c5 3309 if (r == opd->relocation + relcount)
699733f6
AM		 3310 break;
3311
3312 if (r->address != syms[i]->value + opd->vma)
3313 continue;
3314
3315 if (r->howto->type != R_PPC64_ADDR64)
3316 continue;
90e3cdf2 3317
699733f6
AM		 3318 sym = *r->sym_ptr_ptr;
3319 if (!sym_exists_at (syms, opdsymend, symcount,
3320 sym->section->id, sym->value + r->addend))
3321 {
3322 size_t len;
3323
3324 *s = *syms[i];
6ba2a415 3325 s->flags |= BSF_SYNTHETIC;
699733f6
AM		 3326 s->section = sym->section;
3327 s->value = sym->value + r->addend;
3328 s->name = names;
3329 *names++ = '.';
3330 len = strlen (syms[i]->name);
3331 memcpy (names, syms[i]->name, len + 1);
3332 names += len + 1;
6f610d07
UW		 3333 /* Have udata.p point back to the original symbol this
3334 synthetic symbol was derived from. */
3335 s->udata.p = syms[i];
699733f6
AM		 3336 s++;
3337 }
3338 }
3339 }
3340 else
90e3cdf2 3341 {
468392fb 3342 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
ee67d69a 3343 bfd_byte *contents = NULL;
699733f6 3344 size_t size;
468392fb
AM		 3345 long plt_count = 0;
3346 bfd_vma glink_vma = 0, resolv_vma = 0;
3347 asection *dynamic, *glink = NULL, *relplt = NULL;
3348 arelent *p;
90e3cdf2 3349
ee67d69a 3350 if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents))
699733f6 3351 {
ee67d69a 3352 free_contents_and_exit:
699733f6 3353 if (contents)
ee67d69a 3354 free (contents);
7356fed5 3355 count = -1;
c9727e01 3356 goto done;
699733f6 3357 }
90e3cdf2 3358
699733f6
AM		 3359 size = 0;
3360 for (i = secsymend; i < opdsymend; ++i)
3361 {
3362 bfd_vma ent;
90e3cdf2 3363
5ef11c02
AM		 3364 /* Ignore bogus symbols. */
3365 if (syms[i]->value > opd->size - 8)
3366 continue;
3367
699733f6
AM		 3368 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3369 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3370 {
3371 ++count;
3372 size += sizeof (asymbol);
3373 size += strlen (syms[i]->name) + 2;
3374 }
3375 }
90e3cdf2 3376
468392fb 3377 /* Get start of .glink stubs from DT_PPC64_GLINK. */
066ee829
AM		 3378 if (dyn_count != 0
3379 && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL)
468392fb
AM		 3380 {
3381 bfd_byte *dynbuf, *extdyn, *extdynend;
3382 size_t extdynsize;
3383 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
3384
3385 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
3386 goto free_contents_and_exit;
3387
3388 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
3389 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
3390
3391 extdyn = dynbuf;
3392 extdynend = extdyn + dynamic->size;
3393 for (; extdyn < extdynend; extdyn += extdynsize)
3394 {
3395 Elf_Internal_Dyn dyn;
3396 (*swap_dyn_in) (abfd, extdyn, &dyn);
3397
3398 if (dyn.d_tag == DT_NULL)
3399 break;
3400
3401 if (dyn.d_tag == DT_PPC64_GLINK)
3402 {
b9e5796b
AM		 3403 /* The first glink stub starts at offset 32; see
3404 comment in ppc64_elf_finish_dynamic_sections. */
3405 glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4;
468392fb
AM		 3406 /* The .glink section usually does not survive the final
3407 link; search for the section (usually .text) where the
3408 glink stubs now reside. */
3409 glink = bfd_sections_find_if (abfd, section_covers_vma,
3410 &glink_vma);
3411 break;
3412 }
3413 }
3414
3415 free (dynbuf);
3416 }
3417
3418 if (glink != NULL)
3419 {
3420 /* Determine __glink trampoline by reading the relative branch
3421 from the first glink stub. */
3422 bfd_byte buf[4];
b9e5796b
AM		 3423 unsigned int off = 0;
3424
3425 while (bfd_get_section_contents (abfd, glink, buf,
3426 glink_vma + off - glink->vma, 4))
468392fb
AM		 3427 {
3428 unsigned int insn = bfd_get_32 (abfd, buf);
3429 insn ^= B_DOT;
3430 if ((insn & ~0x3fffffc) == 0)
b9e5796b
AM		 3431 {
3432 resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000;
3433 break;
3434 }
3435 off += 4;
3436 if (off > 4)
3437 break;
468392fb
AM		 3438 }
3439
3440 if (resolv_vma)
3441 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
468392fb 3442
066ee829
AM		 3443 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
3444 if (relplt != NULL)
3445 {
3446 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3447 if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE))
3448 goto free_contents_and_exit;
68ffbac6 3449
066ee829
AM		 3450 plt_count = relplt->size / sizeof (Elf64_External_Rela);
3451 size += plt_count * sizeof (asymbol);
468392fb 3452
066ee829
AM		 3453 p = relplt->relocation;
3454 for (i = 0; i < plt_count; i++, p++)
e054468f
AM		 3455 {
3456 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3457 if (p->addend != 0)
3458 size += sizeof ("+0x") - 1 + 16;
3459 }
066ee829 3460 }
468392fb
AM		 3461 }
3462
699733f6
AM		 3463 s = *ret = bfd_malloc (size);
3464 if (s == NULL)
7356fed5 3465 goto free_contents_and_exit;
90e3cdf2 3466
468392fb 3467 names = (char *) (s + count + plt_count + (resolv_vma != 0));
90e3cdf2 3468
699733f6 3469 for (i = secsymend; i < opdsymend; ++i)
90e3cdf2 3470 {
699733f6 3471 bfd_vma ent;
90e3cdf2 3472
5ef11c02
AM		 3473 if (syms[i]->value > opd->size - 8)
3474 continue;
3475
699733f6
AM		 3476 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3477 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
90e3cdf2 3478 {
c9727e01 3479 long lo, hi;
699733f6 3480 size_t len;
c9727e01 3481 asection *sec = abfd->sections;
90e3cdf2 3482
699733f6
AM		 3483 *s = *syms[i];
3484 lo = codesecsym;
3485 hi = codesecsymend;
3486 while (lo < hi)
3487 {
c9727e01 3488 long mid = (lo + hi) >> 1;
699733f6
AM		 3489 if (syms[mid]->section->vma < ent)
3490 lo = mid + 1;
3491 else if (syms[mid]->section->vma > ent)
3492 hi = mid;
3493 else
c9727e01
AM		 3494 {
3495 sec = syms[mid]->section;
3496 break;
3497 }
699733f6
AM		 3498 }
3499
c9727e01 3500 if (lo >= hi && lo > codesecsym)
699733f6 3501 sec = syms[lo - 1]->section;
699733f6
AM		 3502
3503 for (; sec != NULL; sec = sec->next)
3504 {
3505 if (sec->vma > ent)
3506 break;
63524580
JK		 3507 /* SEC_LOAD may not be set if SEC is from a separate debug
3508 info file. */
3509 if ((sec->flags & SEC_ALLOC) == 0)
699733f6
AM		 3510 break;
3511 if ((sec->flags & SEC_CODE) != 0)
3512 s->section = sec;
3513 }
6ba2a415 3514 s->flags |= BSF_SYNTHETIC;
699733f6
AM		 3515 s->value = ent - s->section->vma;
3516 s->name = names;
3517 *names++ = '.';
3518 len = strlen (syms[i]->name);
3519 memcpy (names, syms[i]->name, len + 1);
3520 names += len + 1;
6f610d07
UW		 3521 /* Have udata.p point back to the original symbol this
3522 synthetic symbol was derived from. */
3523 s->udata.p = syms[i];
699733f6 3524 s++;
90e3cdf2 3525 }
90e3cdf2 3526 }
699733f6 3527 free (contents);
468392fb
AM		 3528
3529 if (glink != NULL && relplt != NULL)
3530 {
3531 if (resolv_vma)
3532 {
3533 /* Add a symbol for the main glink trampoline. */
86a4952b 3534 memset (s, 0, sizeof *s);
468392fb 3535 s->the_bfd = abfd;
6ba2a415 3536 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM		 3537 s->section = glink;
3538 s->value = resolv_vma - glink->vma;
3539 s->name = names;
3540 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3541 names += sizeof ("__glink_PLTresolve");
3542 s++;
3543 count++;
3544 }
3545
3546 /* FIXME: It would be very much nicer to put sym@plt on the
3547 stub rather than on the glink branch table entry. The
3548 objdump disassembler would then use a sensible symbol
3549 name on plt calls. The difficulty in doing so is
3550 a) finding the stubs, and,
3551 b) matching stubs against plt entries, and,
3552 c) there can be multiple stubs for a given plt entry.
3553
3554 Solving (a) could be done by code scanning, but older
3555 ppc64 binaries used different stubs to current code.
3556 (b) is the tricky one since you need to known the toc
3557 pointer for at least one function that uses a pic stub to
3558 be able to calculate the plt address referenced.
3559 (c) means gdb would need to set multiple breakpoints (or
3560 find the glink branch itself) when setting breakpoints
3561 for pending shared library loads. */
3562 p = relplt->relocation;
3563 for (i = 0; i < plt_count; i++, p++)
3564 {
3565 size_t len;
3566
3567 *s = **p->sym_ptr_ptr;
3568 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3569 we are defining a symbol, ensure one of them is set. */
3570 if ((s->flags & BSF_LOCAL) == 0)
3571 s->flags |= BSF_GLOBAL;
6ba2a415 3572 s->flags |= BSF_SYNTHETIC;
468392fb
AM		 3573 s->section = glink;
3574 s->value = glink_vma - glink->vma;
3575 s->name = names;
3576 s->udata.p = NULL;
3577 len = strlen ((*p->sym_ptr_ptr)->name);
3578 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3579 names += len;
e054468f
AM		 3580 if (p->addend != 0)
3581 {
3582 memcpy (names, "+0x", sizeof ("+0x") - 1);
3583 names += sizeof ("+0x") - 1;
3584 bfd_sprintf_vma (abfd, names, p->addend);
3585 names += strlen (names);
3586 }
468392fb
AM		 3587 memcpy (names, "@plt", sizeof ("@plt"));
3588 names += sizeof ("@plt");
3589 s++;
b9e5796b
AM		 3590 if (abi < 2)
3591 {
3592 glink_vma += 8;
3593 if (i >= 0x8000)
3594 glink_vma += 4;
3595 }
3596 else
468392fb
AM		 3597 glink_vma += 4;
3598 }
3599 count += plt_count;
3600 }
90e3cdf2
JJ		 3601 }
3602
c9727e01 3603 done:
a7535cf3 3604 free (syms);
90e3cdf2
JJ		 3605 return count;
3606}
5bd4f169 3607\f
65f38f15
AM		 3608/* The following functions are specific to the ELF linker, while
3609 functions above are used generally. Those named ppc64_elf_* are
3610 called by the main ELF linker code. They appear in this file more
3611 or less in the order in which they are called. eg.
3612 ppc64_elf_check_relocs is called early in the link process,
3613 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 3614 called.
3615
3616 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3617 functions have both a function code symbol and a function descriptor
3618 symbol. A call to foo in a relocatable object file looks like:
3619
3620 . .text
3621 . x:
3622 . bl .foo
3623 . nop
3624
3625 The function definition in another object file might be:
3626
3627 . .section .opd
3628 . foo: .quad .foo
3629 . .quad .TOC.@tocbase
3630 . .quad 0
3631 .
3632 . .text
3633 . .foo: blr
3634
3635 When the linker resolves the call during a static link, the branch
3636 unsurprisingly just goes to .foo and the .opd information is unused.
3637 If the function definition is in a shared library, things are a little
3638 different: The call goes via a plt call stub, the opd information gets
3639 copied to the plt, and the linker patches the nop.
3640
3641 . x:
3642 . bl .foo_stub
3643 . ld 2,40(1)
3644 .
3645 .
3646 . .foo_stub:
71a39c98
AM		 3647 . std 2,40(1) # in practice, the call stub
3648 . addis 11,2,Lfoo@toc@ha # is slightly optimized, but
3649 . addi 11,11,Lfoo@toc@l # this is the general idea
3650 . ld 12,0(11)
3651 . ld 2,8(11)
3652 . mtctr 12
3653 . ld 11,16(11)
e86ce104
AM		 3654 . bctr
3655 .
3656 . .section .plt
3657 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3658
3659 The "reloc ()" notation is supposed to indicate that the linker emits
3660 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3661 copying.
3662
3663 What are the difficulties here? Well, firstly, the relocations
3664 examined by the linker in check_relocs are against the function code
3665 sym .foo, while the dynamic relocation in the plt is emitted against
3666 the function descriptor symbol, foo. Somewhere along the line, we need
3667 to carefully copy dynamic link information from one symbol to the other.
3668 Secondly, the generic part of the elf linker will make .foo a dynamic
3669 symbol as is normal for most other backends. We need foo dynamic
3670 instead, at least for an application final link. However, when
3671 creating a shared library containing foo, we need to have both symbols
3672 dynamic so that references to .foo are satisfied during the early
3673 stages of linking. Otherwise the linker might decide to pull in a
8387904d
AM		 3674 definition from some other object, eg. a static library.
3675
3676 Update: As of August 2004, we support a new convention. Function
3677 calls may use the function descriptor symbol, ie. "bl foo". This
3678 behaves exactly as "bl .foo". */
65f38f15 3679
1d483afe 3680/* Of those relocs that might be copied as dynamic relocs, this function
58ac9f71
AM		 3681 selects those that must be copied when linking a shared library,
3682 even when the symbol is local. */
65f38f15 3683
1d483afe
AM		 3684static int
3685must_be_dyn_reloc (struct bfd_link_info *info,
3686 enum elf_ppc64_reloc_type r_type)
3687{
3688 switch (r_type)
3689 {
3690 default:
3691 return 1;
3692
3693 case R_PPC64_REL32:
3694 case R_PPC64_REL64:
3695 case R_PPC64_REL30:
3696 return 0;
3697
3698 case R_PPC64_TPREL16:
3699 case R_PPC64_TPREL16_LO:
3700 case R_PPC64_TPREL16_HI:
3701 case R_PPC64_TPREL16_HA:
3702 case R_PPC64_TPREL16_DS:
3703 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 3704 case R_PPC64_TPREL16_HIGH:
3705 case R_PPC64_TPREL16_HIGHA:
1d483afe
AM		 3706 case R_PPC64_TPREL16_HIGHER:
3707 case R_PPC64_TPREL16_HIGHERA:
3708 case R_PPC64_TPREL16_HIGHEST:
3709 case R_PPC64_TPREL16_HIGHESTA:
3710 case R_PPC64_TPREL64:
3711 return !info->executable;
3712 }
3713}
65f38f15 3714
f4656909
AM		 3715/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3716 copying dynamic variables from a shared lib into an app's dynbss
3717 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 3718 shared lib. With code that gcc generates, it's vital that this be
3719 enabled; In the PowerPC64 ABI, the address of a function is actually
3720 the address of a function descriptor, which resides in the .opd
3721 section. gcc uses the descriptor directly rather than going via the
3722 GOT as some other ABI's do, which means that initialized function
3723 pointers must reference the descriptor. Thus, a function pointer
3724 initialized to the address of a function in a shared library will
3725 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 3726 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM		 3727 presents a problem as a plt entry for that function is also
3728 initialized from the function descriptor symbol and the copy reloc
3729 may not be initialized first. */
a23b6845 3730#define ELIMINATE_COPY_RELOCS 1
f4656909 3731
721956f4 3732/* Section name for stubs is the associated section name plus this
29942be8
NC		 3733 string. */
3734#define STUB_SUFFIX ".stub"
721956f4
AM		 3735
3736/* Linker stubs.
3737 ppc_stub_long_branch:
3738 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3739 destination, but a 24 bit branch in a stub section will reach.
3740 . b dest
3741
3742 ppc_stub_plt_branch:
3743 Similar to the above, but a 24 bit branch in the stub section won't
3744 reach its destination.
71a39c98
AM		 3745 . addis %r11,%r2,xxx@toc@ha
3746 . ld %r12,xxx@toc@l(%r11)
3747 . mtctr %r12
721956f4
AM		 3748 . bctr
3749
3750 ppc_stub_plt_call:
2c66dc6c
AM		 3751 Used to call a function in a shared library. If it so happens that
3752 the plt entry referenced crosses a 64k boundary, then an extra
71a39c98 3753 "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr".
721956f4 3754 . std %r2,40(%r1)
71a39c98
AM		 3755 . addis %r11,%r2,xxx@toc@ha
3756 . ld %r12,xxx+0@toc@l(%r11)
3757 . mtctr %r12
3758 . ld %r2,xxx+8@toc@l(%r11)
3759 . ld %r11,xxx+16@toc@l(%r11)
721956f4 3760 . bctr
ad8e1ba5
AM		 3761
3762 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3763 code to adjust the value and save r2 to support multiple toc sections.
3764 A ppc_stub_long_branch with an r2 offset looks like:
3765 . std %r2,40(%r1)
3766 . addis %r2,%r2,off@ha
3767 . addi %r2,%r2,off@l
3768 . b dest
3769
3770 A ppc_stub_plt_branch with an r2 offset looks like:
3771 . std %r2,40(%r1)
71a39c98
AM		 3772 . addis %r11,%r2,xxx@toc@ha
3773 . ld %r12,xxx@toc@l(%r11)
ad8e1ba5
AM		 3774 . addis %r2,%r2,off@ha
3775 . addi %r2,%r2,off@l
71a39c98 3776 . mtctr %r12
ad8e1ba5 3777 . bctr
ac2df442
AM		 3778
3779 In cases where the "addis" instruction would add zero, the "addis" is
3780 omitted and following instructions modified slightly in some cases.
721956f4
AM		 3781*/
3782
3783enum ppc_stub_type {
3784 ppc_stub_none,
3785 ppc_stub_long_branch,
ad8e1ba5 3786 ppc_stub_long_branch_r2off,
721956f4 3787 ppc_stub_plt_branch,
ad8e1ba5 3788 ppc_stub_plt_branch_r2off,
794e51c0 3789 ppc_stub_plt_call,
7341d5e2
AM		 3790 ppc_stub_plt_call_r2save,
3791 ppc_stub_global_entry
721956f4
AM		 3792};
3793
3794struct ppc_stub_hash_entry {
3795
3796 /* Base hash table entry structure. */
3797 struct bfd_hash_entry root;
3798
ad8e1ba5
AM		 3799 enum ppc_stub_type stub_type;
3800
721956f4
AM		 3801 /* The stub section. */
3802 asection *stub_sec;
3803
3804 /* Offset within stub_sec of the beginning of this stub. */
3805 bfd_vma stub_offset;
3806
3807 /* Given the symbol's value and its section we can determine its final
3808 value when building the stubs (so the stub knows where to jump. */
3809 bfd_vma target_value;
3810 asection *target_section;
3811
721956f4
AM		 3812 /* The symbol table entry, if any, that this was derived from. */
3813 struct ppc_link_hash_entry *h;
e054468f 3814 struct plt_entry *plt_ent;
721956f4
AM		 3815
3816 /* Where this stub is being called from, or, in the case of combined
3817 stub sections, the first input section in the group. */
3818 asection *id_sec;
6911b7dc
AM		 3819
3820 /* Symbol st_other. */
3821 unsigned char other;
721956f4
AM		 3822};
3823
3824struct ppc_branch_hash_entry {
3825
3826 /* Base hash table entry structure. */
3827 struct bfd_hash_entry root;
3828
c456f082 3829 /* Offset within branch lookup table. */
721956f4
AM		 3830 unsigned int offset;
3831
3832 /* Generation marker. */
3833 unsigned int iter;
3834};
65f38f15 3835
19e08130
AM		 3836/* Used to track dynamic relocations for local symbols. */
3837struct ppc_dyn_relocs
3838{
3839 struct ppc_dyn_relocs *next;
3840
3841 /* The input section of the reloc. */
3842 asection *sec;
3843
3844 /* Total number of relocs copied for the input section. */
3845 unsigned int count : 31;
3846
3847 /* Whether this entry is for STT_GNU_IFUNC symbols. */
3848 unsigned int ifunc : 1;
3849};
3850
65f38f15
AM		 3851struct ppc_link_hash_entry
3852{
3853 struct elf_link_hash_entry elf;
3854
b3fac117
AM		 3855 union {
3856 /* A pointer to the most recently used stub hash entry against this
3857 symbol. */
3858 struct ppc_stub_hash_entry *stub_cache;
3859
3860 /* A pointer to the next symbol starting with a '.' */
3861 struct ppc_link_hash_entry *next_dot_sym;
3862 } u;
721956f4 3863
65f38f15 3864 /* Track dynamic relocs copied for this symbol. */
6061a67d 3865 struct elf_dyn_relocs *dyn_relocs;
e86ce104 3866
721956f4 3867 /* Link between function code and descriptor symbols. */
34814b9f 3868 struct ppc_link_hash_entry *oh;
721956f4 3869
e86ce104
AM		 3870 /* Flag function code and descriptor symbols. */
3871 unsigned int is_func:1;
3872 unsigned int is_func_descriptor:1;
908b32fc 3873 unsigned int fake:1;
411e1bfb 3874
c5614fa4
AM		 3875 /* Whether global opd/toc sym has been adjusted or not.
3876 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3877 should be set for all globals defined in any opd/toc section. */
754021d0
AM		 3878 unsigned int adjust_done:1;
3879
99877b66
AM		 3880 /* Set if we twiddled this symbol to weak at some stage. */
3881 unsigned int was_undefined:1;
3882
411e1bfb 3883 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 3884 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3885 corresponding relocs are encountered during check_relocs.
3886 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3887 indicate the corresponding GOT entry type is not needed.
3888 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3889 a TPREL one. We use a separate flag rather than setting TPREL
3890 just for convenience in distinguishing the two cases. */
3891#define TLS_GD 1 /* GD reloc. */
3892#define TLS_LD 2 /* LD reloc. */
3893#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3894#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3895#define TLS_TLS 16 /* Any TLS reloc. */
3896#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3897#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
e054468f 3898#define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
f961d9dd 3899 unsigned char tls_mask;
65f38f15
AM		 3900};
3901
3902/* ppc64 ELF linker hash table. */
3903
3904struct ppc_link_hash_table
3905{
3906 struct elf_link_hash_table elf;
3907
721956f4
AM		 3908 /* The stub hash table. */
3909 struct bfd_hash_table stub_hash_table;
3910
3911 /* Another hash table for plt_branch stubs. */
3912 struct bfd_hash_table branch_hash_table;
3913
3b421ab3
AM		 3914 /* Hash table for function prologue tocsave. */
3915 htab_t tocsave_htab;
3916
e7d1c40c
AM		 3917 /* Various options and other info passed from the linker. */
3918 struct ppc64_elf_params *params;
721956f4
AM		 3919
3920 /* Array to keep track of which stub sections have been created, and
3921 information on stub grouping. */
3922 struct map_stub {
3923 /* This is the section to which stubs in the group will be attached. */
3924 asection *link_sec;
3925 /* The stub section. */
3926 asection *stub_sec;
ad8e1ba5
AM		 3927 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3928 bfd_vma toc_off;
721956f4
AM		 3929 } *stub_group;
3930
ad8e1ba5
AM		 3931 /* Temp used when calculating TOC pointers. */
3932 bfd_vma toc_curr;
bf102f86
AM		 3933 bfd *toc_bfd;
3934 asection *toc_first_sec;
ad8e1ba5 3935
8f3bab57
AM		 3936 /* Highest input section id. */
3937 int top_id;
3938
734b6cf9
AM		 3939 /* Highest output section index. */
3940 int top_index;
3941
b3fac117
AM		 3942 /* Used when adding symbols. */
3943 struct ppc_link_hash_entry *dot_syms;
3944
734b6cf9
AM		 3945 /* List of input sections for each output section. */
3946 asection **input_list;
721956f4 3947
33e44f2e 3948 /* Shortcuts to get to dynamic linker sections. */
4ce794b7
AM		 3949 asection *dynbss;
3950 asection *relbss;
3951 asection *glink;
82bd7b59 3952 asection *sfpr;
4ce794b7
AM		 3953 asection *brlt;
3954 asection *relbrlt;
58d180e8 3955 asection *glink_eh_frame;
ec338859 3956
8387904d
AM		 3957 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3958 struct ppc_link_hash_entry *tls_get_addr;
3959 struct ppc_link_hash_entry *tls_get_addr_fd;
411e1bfb 3960
927be08e
AM		 3961 /* The size of reliplt used by got entry relocs. */
3962 bfd_size_type got_reli_size;
3963
9b5ecbd0 3964 /* Statistics. */
7341d5e2 3965 unsigned long stub_count[ppc_stub_global_entry];
9b5ecbd0 3966
ee75fd95
AM		 3967 /* Number of stubs against global syms. */
3968 unsigned long stub_globals;
3969
ee67d69a
AM		 3970 /* Set if we're linking code with function descriptors. */
3971 unsigned int opd_abi:1;
3972
4c52953f 3973 /* Support for multiple toc sections. */
33c0ec9d 3974 unsigned int do_multi_toc:1;
4c52953f 3975 unsigned int multi_toc_needed:1;
927be08e 3976 unsigned int second_toc_pass:1;
67f0cbdb 3977 unsigned int do_toc_opt:1;
4c52953f 3978
5d1634d7 3979 /* Set on error. */
99877b66 3980 unsigned int stub_error:1;
721956f4 3981
f6c7c3e8 3982 /* Temp used by ppc64_elf_before_check_relocs. */
99877b66 3983 unsigned int twiddled_syms:1;
721956f4
AM		 3984
3985 /* Incremented every time we size stubs. */
3986 unsigned int stub_iteration;
5d1634d7 3987
87d72d41
AM		 3988 /* Small local sym cache. */
3989 struct sym_cache sym_cache;
65f38f15
AM		 3990};
3991
4c52953f
AM		 3992/* Rename some of the generic section flags to better document how they
3993 are used here. */
b0dddeec
AM		 3994
3995/* Nonzero if this section has TLS related relocations. */
3996#define has_tls_reloc sec_flg0
3997
3998/* Nonzero if this section has a call to __tls_get_addr. */
3999#define has_tls_get_addr_call sec_flg1
4000
4001/* Nonzero if this section has any toc or got relocs. */
4002#define has_toc_reloc sec_flg2
4003
4004/* Nonzero if this section has a call to another section that uses
4005 the toc or got. */
d77c8a4b 4006#define makes_toc_func_call sec_flg3
b0dddeec
AM		 4007
4008/* Recursion protection when determining above flag. */
d77c8a4b 4009#define call_check_in_progress sec_flg4
70cc837d 4010#define call_check_done sec_flg5
4c52953f 4011
65f38f15
AM		 4012/* Get the ppc64 ELF linker hash table from a link_info structure. */
4013
4014#define ppc_hash_table(p) \
4dfe6ac6
NC		 4015 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
4016 == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL)
65f38f15 4017
721956f4
AM		 4018#define ppc_stub_hash_lookup(table, string, create, copy) \
4019 ((struct ppc_stub_hash_entry *) \
4020 bfd_hash_lookup ((table), (string), (create), (copy)))
4021
4022#define ppc_branch_hash_lookup(table, string, create, copy) \
4023 ((struct ppc_branch_hash_entry *) \
4024 bfd_hash_lookup ((table), (string), (create), (copy)))
4025
4026/* Create an entry in the stub hash table. */
4027
4028static struct bfd_hash_entry *
4ce794b7
AM		 4029stub_hash_newfunc (struct bfd_hash_entry *entry,
4030 struct bfd_hash_table *table,
4031 const char *string)
721956f4
AM		 4032{
4033 /* Allocate the structure if it has not already been allocated by a
4034 subclass. */
4035 if (entry == NULL)
4036 {
4037 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
4038 if (entry == NULL)
4039 return entry;
4040 }
4041
4042 /* Call the allocation method of the superclass. */
4043 entry = bfd_hash_newfunc (entry, table, string);
4044 if (entry != NULL)
4045 {
4046 struct ppc_stub_hash_entry *eh;
4047
4048 /* Initialize the local fields. */
4049 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 4050 eh->stub_type = ppc_stub_none;
721956f4
AM		 4051 eh->stub_sec = NULL;
4052 eh->stub_offset = 0;
4053 eh->target_value = 0;
4054 eh->target_section = NULL;
721956f4 4055 eh->h = NULL;
6911b7dc 4056 eh->plt_ent = NULL;
721956f4 4057 eh->id_sec = NULL;
6911b7dc 4058 eh->other = 0;
721956f4
AM		 4059 }
4060
4061 return entry;
4062}
4063
4064/* Create an entry in the branch hash table. */
4065
4066static struct bfd_hash_entry *
4ce794b7
AM		 4067branch_hash_newfunc (struct bfd_hash_entry *entry,
4068 struct bfd_hash_table *table,
4069 const char *string)
721956f4
AM		 4070{
4071 /* Allocate the structure if it has not already been allocated by a
4072 subclass. */
4073 if (entry == NULL)
4074 {
4075 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
4076 if (entry == NULL)
4077 return entry;
4078 }
4079
4080 /* Call the allocation method of the superclass. */
4081 entry = bfd_hash_newfunc (entry, table, string);
4082 if (entry != NULL)
4083 {
4084 struct ppc_branch_hash_entry *eh;
4085
4086 /* Initialize the local fields. */
4087 eh = (struct ppc_branch_hash_entry *) entry;
4088 eh->offset = 0;
4089 eh->iter = 0;
4090 }
4091
4092 return entry;
4093}
4094
65f38f15
AM		 4095/* Create an entry in a ppc64 ELF linker hash table. */
4096
4097static struct bfd_hash_entry *
4ce794b7
AM		 4098link_hash_newfunc (struct bfd_hash_entry *entry,
4099 struct bfd_hash_table *table,
4100 const char *string)
65f38f15
AM		 4101{
4102 /* Allocate the structure if it has not already been allocated by a
4103 subclass. */
4104 if (entry == NULL)
4105 {
4106 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
4107 if (entry == NULL)
4108 return entry;
4109 }
4110
4111 /* Call the allocation method of the superclass. */
4112 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
4113 if (entry != NULL)
4114 {
4115 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
4116
b3fac117 4117 memset (&eh->u.stub_cache, 0,
908b32fc 4118 (sizeof (struct ppc_link_hash_entry)
b3fac117
AM		 4119 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
4120
4121 /* When making function calls, old ABI code references function entry
4122 points (dot symbols), while new ABI code references the function
4123 descriptor symbol. We need to make any combination of reference and
4124 definition work together, without breaking archive linking.
4125
4126 For a defined function "foo" and an undefined call to "bar":
4127 An old object defines "foo" and ".foo", references ".bar" (possibly
4128 "bar" too).
4129 A new object defines "foo" and references "bar".
4130
4131 A new object thus has no problem with its undefined symbols being
4132 satisfied by definitions in an old object. On the other hand, the
4133 old object won't have ".bar" satisfied by a new object.
4134
4135 Keep a list of newly added dot-symbols. */
4136
4137 if (string[0] == '.')
4138 {
4139 struct ppc_link_hash_table *htab;
4140
4141 htab = (struct ppc_link_hash_table *) table;
4142 eh->u.next_dot_sym = htab->dot_syms;
4143 htab->dot_syms = eh;
4144 }
65f38f15
AM		 4145 }
4146
4147 return entry;
4148}
4149
3b421ab3
AM		 4150struct tocsave_entry {
4151 asection *sec;
4152 bfd_vma offset;
4153};
4154
4155static hashval_t
4156tocsave_htab_hash (const void *p)
4157{
4158 const struct tocsave_entry *e = (const struct tocsave_entry *) p;
4159 return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3;
4160}
4161
4162static int
4163tocsave_htab_eq (const void *p1, const void *p2)
4164{
4165 const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1;
4166 const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2;
4167 return e1->sec == e2->sec && e1->offset == e2->offset;
4168}
4169
68faa637
AM		 4170/* Destroy a ppc64 ELF linker hash table. */
4171
4172static void
d495ab0d 4173ppc64_elf_link_hash_table_free (bfd *obfd)
68faa637 4174{
d495ab0d 4175 struct ppc_link_hash_table *htab;
68faa637 4176
d495ab0d 4177 htab = (struct ppc_link_hash_table *) obfd->link.hash;
68faa637
AM		 4178 if (htab->tocsave_htab)
4179 htab_delete (htab->tocsave_htab);
d495ab0d
AM		 4180 bfd_hash_table_free (&htab->branch_hash_table);
4181 bfd_hash_table_free (&htab->stub_hash_table);
4182 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 4183}
4184
65f38f15
AM		 4185/* Create a ppc64 ELF linker hash table. */
4186
4187static struct bfd_link_hash_table *
4ce794b7 4188ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 4189{
4190 struct ppc_link_hash_table *htab;
4191 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
4192
4ce794b7 4193 htab = bfd_zmalloc (amt);
65f38f15
AM		 4194 if (htab == NULL)
4195 return NULL;
4196
66eb6687 4197 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 4198 sizeof (struct ppc_link_hash_entry),
4199 PPC64_ELF_DATA))
65f38f15 4200 {
e2d34d7d 4201 free (htab);
65f38f15
AM		 4202 return NULL;
4203 }
4204
721956f4 4205 /* Init the stub hash table too. */
66eb6687
AM		 4206 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
4207 sizeof (struct ppc_stub_hash_entry)))
2915c55b 4208 {
d495ab0d 4209 _bfd_elf_link_hash_table_free (abfd);
2915c55b
JK		 4210 return NULL;
4211 }
721956f4
AM		 4212
4213 /* And the branch hash table. */
66eb6687
AM		 4214 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
4215 sizeof (struct ppc_branch_hash_entry)))
2915c55b
JK		 4216 {
4217 bfd_hash_table_free (&htab->stub_hash_table);
d495ab0d 4218 _bfd_elf_link_hash_table_free (abfd);
2915c55b
JK		 4219 return NULL;
4220 }
721956f4 4221
3b421ab3
AM		 4222 htab->tocsave_htab = htab_try_create (1024,
4223 tocsave_htab_hash,
4224 tocsave_htab_eq,
4225 NULL);
4226 if (htab->tocsave_htab == NULL)
2915c55b 4227 {
d495ab0d 4228 ppc64_elf_link_hash_table_free (abfd);
2915c55b
JK		 4229 return NULL;
4230 }
d495ab0d 4231 htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free;
3b421ab3 4232
3254fd24
AM		 4233 /* Initializing two fields of the union is just cosmetic. We really
4234 only care about glist, but when compiled on a 32-bit host the
4235 bfd_vma fields are larger. Setting the bfd_vma to zero makes
4236 debugger inspection of these fields look nicer. */
a6aa5195
AM		 4237 htab->elf.init_got_refcount.refcount = 0;
4238 htab->elf.init_got_refcount.glist = NULL;
4239 htab->elf.init_plt_refcount.refcount = 0;
4240 htab->elf.init_plt_refcount.glist = NULL;
4241 htab->elf.init_got_offset.offset = 0;
4242 htab->elf.init_got_offset.glist = NULL;
4243 htab->elf.init_plt_offset.offset = 0;
4244 htab->elf.init_plt_offset.glist = NULL;
3254fd24 4245
65f38f15
AM		 4246 return &htab->elf.root;
4247}
4248
bfeb4a28
AM		 4249/* Create sections for linker generated code. */
4250
4251static bfd_boolean
4252create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
4253{
4254 struct ppc_link_hash_table *htab;
4255 flagword flags;
4256
4257 htab = ppc_hash_table (info);
4258
4259 /* Create .sfpr for code to save and restore fp regs. */
4260 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
4261 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4262 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
4263 flags);
4264 if (htab->sfpr == NULL
4265 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
4266 return FALSE;
4267
4268 /* Create .glink for lazy dynamic linking support. */
4269 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
4270 flags);
4271 if (htab->glink == NULL
4272 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
4273 return FALSE;
4274
4275 if (!info->no_ld_generated_unwind_info)
4276 {
4277 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
4278 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4279 htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj,
4280 ".eh_frame",
4281 flags);
4282 if (htab->glink_eh_frame == NULL
4283 || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2))
4284 return FALSE;
4285 }
4286
4287 flags = SEC_ALLOC | SEC_LINKER_CREATED;
33e44f2e
AM		 4288 htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
4289 if (htab->elf.iplt == NULL
4290 || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3))
bfeb4a28
AM		 4291 return FALSE;
4292
4293 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4294 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
33e44f2e
AM		 4295 htab->elf.irelplt
4296 = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags);
4297 if (htab->elf.irelplt == NULL
4298 || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3))
bfeb4a28
AM		 4299 return FALSE;
4300
4301 /* Create branch lookup table for plt_branch stubs. */
4302 flags = (SEC_ALLOC | SEC_LOAD
4303 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4304 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
4305 flags);
4306 if (htab->brlt == NULL
4307 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
4308 return FALSE;
4309
4310 if (!info->shared)
4311 return TRUE;
4312
4313 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4314 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4315 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
4316 ".rela.branch_lt",
4317 flags);
4318 if (htab->relbrlt == NULL
4319 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
4320 return FALSE;
4321
4322 return TRUE;
4323}
4324
e717da7e
AM		 4325/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
4326
bfeb4a28 4327bfd_boolean
e7d1c40c
AM		 4328ppc64_elf_init_stub_bfd (struct bfd_link_info *info,
4329 struct ppc64_elf_params *params)
e717da7e
AM		 4330{
4331 struct ppc_link_hash_table *htab;
4332
e7d1c40c 4333 elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64;
e717da7e
AM		 4334
4335/* Always hook our dynamic sections into the first bfd, which is the
4336 linker created stub bfd. This ensures that the GOT header is at
4337 the start of the output TOC section. */
4338 htab = ppc_hash_table (info);
4dfe6ac6 4339 if (htab == NULL)
bfeb4a28 4340 return FALSE;
e7d1c40c
AM		 4341 htab->elf.dynobj = params->stub_bfd;
4342 htab->params = params;
bfeb4a28
AM		 4343
4344 if (info->relocatable)
4345 return TRUE;
4346
4347 return create_linkage_sections (htab->elf.dynobj, info);
e717da7e
AM		 4348}
4349
721956f4
AM		 4350/* Build a name for an entry in the stub hash table. */
4351
4352static char *
4ce794b7
AM		 4353ppc_stub_name (const asection *input_section,
4354 const asection *sym_sec,
4355 const struct ppc_link_hash_entry *h,
4356 const Elf_Internal_Rela *rel)
721956f4
AM		 4357{
4358 char *stub_name;
bcaa2f82 4359 ssize_t len;
721956f4
AM		 4360
4361 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
4362 offsets from a sym as a branch target? In fact, we could
4363 probably assume the addend is always zero. */
4364 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
4365
4366 if (h)
4367 {
4368 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
4369 stub_name = bfd_malloc (len);
46de2a7c
AM		 4370 if (stub_name == NULL)
4371 return stub_name;
4372
bcaa2f82
AM		 4373 len = sprintf (stub_name, "%08x.%s+%x",
4374 input_section->id & 0xffffffff,
4375 h->elf.root.root.string,
4376 (int) rel->r_addend & 0xffffffff);
721956f4
AM		 4377 }
4378 else
4379 {
ad8e1ba5 4380 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4 4381 stub_name = bfd_malloc (len);
46de2a7c
AM		 4382 if (stub_name == NULL)
4383 return stub_name;
4384
bcaa2f82
AM		 4385 len = sprintf (stub_name, "%08x.%x:%x+%x",
4386 input_section->id & 0xffffffff,
4387 sym_sec->id & 0xffffffff,
4388 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
4389 (int) rel->r_addend & 0xffffffff);
721956f4 4390 }
bcaa2f82 4391 if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
ee75fd95 4392 stub_name[len - 2] = 0;
721956f4
AM		 4393 return stub_name;
4394}
4395
4396/* Look up an entry in the stub hash. Stub entries are cached because
4397 creating the stub name takes a bit of time. */
4398
4399static struct ppc_stub_hash_entry *
4ce794b7
AM		 4400ppc_get_stub_entry (const asection *input_section,
4401 const asection *sym_sec,
039b3fef 4402 struct ppc_link_hash_entry *h,
4ce794b7
AM		 4403 const Elf_Internal_Rela *rel,
4404 struct ppc_link_hash_table *htab)
721956f4
AM		 4405{
4406 struct ppc_stub_hash_entry *stub_entry;
721956f4
AM		 4407 const asection *id_sec;
4408
4409 /* If this input section is part of a group of sections sharing one
4410 stub section, then use the id of the first section in the group.
4411 Stub names need to include a section id, as there may well be
4412 more than one stub used to reach say, printf, and we need to
4413 distinguish between them. */
4414 id_sec = htab->stub_group[input_section->id].link_sec;
4415
b3fac117
AM		 4416 if (h != NULL && h->u.stub_cache != NULL
4417 && h->u.stub_cache->h == h
4418 && h->u.stub_cache->id_sec == id_sec)
721956f4 4419 {
b3fac117 4420 stub_entry = h->u.stub_cache;
721956f4
AM		 4421 }
4422 else
4423 {
4424 char *stub_name;
4425
4426 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
4427 if (stub_name == NULL)
4428 return NULL;
4429
4430 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 4431 stub_name, FALSE, FALSE);
721956f4 4432 if (h != NULL)
b3fac117 4433 h->u.stub_cache = stub_entry;
721956f4
AM		 4434
4435 free (stub_name);
4436 }
4437
4438 return stub_entry;
4439}
4440
4441/* Add a new stub entry to the stub hash. Not all fields of the new
4442 stub entry are initialised. */
4443
4444static struct ppc_stub_hash_entry *
4ce794b7
AM		 4445ppc_add_stub (const char *stub_name,
4446 asection *section,
25f53a85 4447 struct bfd_link_info *info)
721956f4 4448{
25f53a85 4449 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4
AM		 4450 asection *link_sec;
4451 asection *stub_sec;
4452 struct ppc_stub_hash_entry *stub_entry;
4453
4454 link_sec = htab->stub_group[section->id].link_sec;
4455 stub_sec = htab->stub_group[section->id].stub_sec;
4456 if (stub_sec == NULL)
4457 {
4458 stub_sec = htab->stub_group[link_sec->id].stub_sec;
4459 if (stub_sec == NULL)
4460 {
d4c88bbb 4461 size_t namelen;
721956f4
AM		 4462 bfd_size_type len;
4463 char *s_name;
4464
d4c88bbb
AM		 4465 namelen = strlen (link_sec->name);
4466 len = namelen + sizeof (STUB_SUFFIX);
e7d1c40c 4467 s_name = bfd_alloc (htab->params->stub_bfd, len);
721956f4
AM		 4468 if (s_name == NULL)
4469 return NULL;
4470
d4c88bbb
AM		 4471 memcpy (s_name, link_sec->name, namelen);
4472 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
e7d1c40c 4473 stub_sec = (*htab->params->add_stub_section) (s_name, link_sec);
721956f4
AM		 4474 if (stub_sec == NULL)
4475 return NULL;
4476 htab->stub_group[link_sec->id].stub_sec = stub_sec;
4477 }
4478 htab->stub_group[section->id].stub_sec = stub_sec;
4479 }
4480
4481 /* Enter this entry into the linker stub hash table. */
4482 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 4483 TRUE, FALSE);
721956f4
AM		 4484 if (stub_entry == NULL)
4485 {
8de848d8 4486 info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"),
25f53a85 4487 section->owner, stub_name);
721956f4
AM		 4488 return NULL;
4489 }
4490
4491 stub_entry->stub_sec = stub_sec;
4492 stub_entry->stub_offset = 0;
4493 stub_entry->id_sec = link_sec;
4494 return stub_entry;
4495}
4496
e717da7e
AM		 4497/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
4498 not already done. */
65f38f15 4499
b34976b6 4500static bfd_boolean
e717da7e 4501create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 4502{
e717da7e
AM		 4503 asection *got, *relgot;
4504 flagword flags;
4505 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 4506
0c8d6e5c 4507 if (!is_ppc64_elf (abfd))
0ffa91dd 4508 return FALSE;
4dfe6ac6
NC		 4509 if (htab == NULL)
4510 return FALSE;
0ffa91dd 4511
33e44f2e
AM		 4512 if (!htab->elf.sgot
4513 && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
4514 return FALSE;
e717da7e
AM		 4515
4516 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4517 | SEC_LINKER_CREATED);
4518
c456f082 4519 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
e717da7e 4520 if (!got
e717da7e
AM		 4521 || !bfd_set_section_alignment (abfd, got, 3))
4522 return FALSE;
65f38f15 4523
c456f082
AM		 4524 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
4525 flags | SEC_READONLY);
e717da7e 4526 if (!relgot
e717da7e 4527 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 4528 return FALSE;
e717da7e
AM		 4529
4530 ppc64_elf_tdata (abfd)->got = got;
4531 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 4532 return TRUE;
65f38f15 4533}
5bd4f169 4534
82bd7b59 4535/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 4536
b34976b6 4537static bfd_boolean
4ce794b7 4538ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 4539{
65f38f15 4540 struct ppc_link_hash_table *htab;
5bd4f169 4541
65f38f15 4542 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 4543 return FALSE;
65f38f15 4544
e717da7e 4545 htab = ppc_hash_table (info);
4dfe6ac6
NC		 4546 if (htab == NULL)
4547 return FALSE;
4548
3d4d4302 4549 htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss");
65f38f15 4550 if (!info->shared)
3d4d4302 4551 htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss");
65f38f15 4552
33e44f2e 4553 if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss
4ce794b7 4554 || (!info->shared && !htab->relbss))
65f38f15
AM		 4555 abort ();
4556
b34976b6 4557 return TRUE;
5bd4f169
AM		 4558}
4559
b31867b6
AM		 4560/* Follow indirect and warning symbol links. */
4561
4562static inline struct bfd_link_hash_entry *
4563follow_link (struct bfd_link_hash_entry *h)
4564{
4565 while (h->type == bfd_link_hash_indirect
4566 || h->type == bfd_link_hash_warning)
4567 h = h->u.i.link;
4568 return h;
4569}
4570
4571static inline struct elf_link_hash_entry *
4572elf_follow_link (struct elf_link_hash_entry *h)
4573{
4574 return (struct elf_link_hash_entry *) follow_link (&h->root);
4575}
4576
4577static inline struct ppc_link_hash_entry *
4578ppc_follow_link (struct ppc_link_hash_entry *h)
4579{
4580 return (struct ppc_link_hash_entry *) follow_link (&h->elf.root);
4581}
4582
40d16e0b
AM		 4583/* Merge PLT info on FROM with that on TO. */
4584
4585static void
4586move_plt_plist (struct ppc_link_hash_entry *from,
4587 struct ppc_link_hash_entry *to)
4588{
4589 if (from->elf.plt.plist != NULL)
4590 {
4591 if (to->elf.plt.plist != NULL)
4592 {
4593 struct plt_entry **entp;
4594 struct plt_entry *ent;
4595
4596 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
4597 {
4598 struct plt_entry *dent;
4599
4600 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
4601 if (dent->addend == ent->addend)
4602 {
4603 dent->plt.refcount += ent->plt.refcount;
4604 *entp = ent->next;
4605 break;
4606 }
4607 if (dent == NULL)
4608 entp = &ent->next;
4609 }
4610 *entp = to->elf.plt.plist;
4611 }
4612
4613 to->elf.plt.plist = from->elf.plt.plist;
4614 from->elf.plt.plist = NULL;
4615 }
4616}
4617
65f38f15
AM		 4618/* Copy the extra info we tack onto an elf_link_hash_entry. */
4619
4620static void
fcfa13d2
AM		 4621ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
4622 struct elf_link_hash_entry *dir,
4623 struct elf_link_hash_entry *ind)
65f38f15
AM		 4624{
4625 struct ppc_link_hash_entry *edir, *eind;
4626
4627 edir = (struct ppc_link_hash_entry *) dir;
4628 eind = (struct ppc_link_hash_entry *) ind;
4629
c79d6685
AM		 4630 edir->is_func |= eind->is_func;
4631 edir->is_func_descriptor |= eind->is_func_descriptor;
4632 edir->tls_mask |= eind->tls_mask;
4633 if (eind->oh != NULL)
4634 edir->oh = ppc_follow_link (eind->oh);
4635
4636 /* If called to transfer flags for a weakdef during processing
4637 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
4638 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4639 if (!(ELIMINATE_COPY_RELOCS
4640 && eind->elf.root.type != bfd_link_hash_indirect
4641 && edir->elf.dynamic_adjusted))
4642 edir->elf.non_got_ref |= eind->elf.non_got_ref;
4643
4644 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4645 edir->elf.ref_regular |= eind->elf.ref_regular;
4646 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4647 edir->elf.needs_plt |= eind->elf.needs_plt;
a345bc8d 4648 edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
c79d6685 4649
411e1bfb 4650 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 4651 if (eind->dyn_relocs != NULL)
65f38f15 4652 {
bbd7ec4a
AM		 4653 if (edir->dyn_relocs != NULL)
4654 {
6061a67d
AM		 4655 struct elf_dyn_relocs **pp;
4656 struct elf_dyn_relocs *p;
bbd7ec4a 4657
fcfa13d2 4658 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a
AM		 4659 list. Merge any entries against the same section. */
4660 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
4661 {
6061a67d 4662 struct elf_dyn_relocs *q;
bbd7ec4a
AM		 4663
4664 for (q = edir->dyn_relocs; q != NULL; q = q->next)
4665 if (q->sec == p->sec)
4666 {
4667 q->pc_count += p->pc_count;
4668 q->count += p->count;
4669 *pp = p->next;
4670 break;
4671 }
4672 if (q == NULL)
4673 pp = &p->next;
4674 }
4675 *pp = edir->dyn_relocs;
4676 }
4677
65f38f15
AM		 4678 edir->dyn_relocs = eind->dyn_relocs;
4679 eind->dyn_relocs = NULL;
4680 }
65f38f15 4681
68ba6d40
AM		 4682 /* If we were called to copy over info for a weak sym, that's all.
4683 You might think dyn_relocs need not be copied over; After all,
4684 both syms will be dynamic or both non-dynamic so we're just
68ffbac6 4685 moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
68ba6d40
AM		 4686 code in ppc64_elf_adjust_dynamic_symbol needs to check for
4687 dyn_relocs in read-only sections, and it does so on what is the
4688 DIR sym here. */
4689 if (eind->elf.root.type != bfd_link_hash_indirect)
4690 return;
4691
81848ca0
AM		 4692 /* Copy over got entries that we may have already seen to the
4693 symbol which just became indirect. */
411e1bfb
AM		 4694 if (eind->elf.got.glist != NULL)
4695 {
4696 if (edir->elf.got.glist != NULL)
4697 {
4698 struct got_entry **entp;
4699 struct got_entry *ent;
4700
4701 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4702 {
4703 struct got_entry *dent;
4704
4705 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4706 if (dent->addend == ent->addend
e717da7e 4707 && dent->owner == ent->owner
411e1bfb
AM		 4708 && dent->tls_type == ent->tls_type)
4709 {
4710 dent->got.refcount += ent->got.refcount;
4711 *entp = ent->next;
4712 break;
4713 }
4714 if (dent == NULL)
4715 entp = &ent->next;
4716 }
4717 *entp = edir->elf.got.glist;
4718 }
4719
4720 edir->elf.got.glist = eind->elf.got.glist;
4721 eind->elf.got.glist = NULL;
4722 }
4723
4724 /* And plt entries. */
40d16e0b 4725 move_plt_plist (eind, edir);
411e1bfb 4726
fcfa13d2 4727 if (eind->elf.dynindx != -1)
411e1bfb 4728 {
fcfa13d2
AM		 4729 if (edir->elf.dynindx != -1)
4730 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4731 edir->elf.dynstr_index);
411e1bfb
AM		 4732 edir->elf.dynindx = eind->elf.dynindx;
4733 edir->elf.dynstr_index = eind->elf.dynstr_index;
4734 eind->elf.dynindx = -1;
4735 eind->elf.dynstr_index = 0;
4736 }
411e1bfb
AM		 4737}
4738
8387904d
AM		 4739/* Find the function descriptor hash entry from the given function code
4740 hash entry FH. Link the entries via their OH fields. */
4741
4742static struct ppc_link_hash_entry *
b31867b6 4743lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
8387904d
AM		 4744{
4745 struct ppc_link_hash_entry *fdh = fh->oh;
4746
4747 if (fdh == NULL)
4748 {
4749 const char *fd_name = fh->elf.root.root.string + 1;
4750
4751 fdh = (struct ppc_link_hash_entry *)
4752 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
b31867b6
AM		 4753 if (fdh == NULL)
4754 return fdh;
4755
4756 fdh->is_func_descriptor = 1;
4757 fdh->oh = fh;
4758 fh->is_func = 1;
4759 fh->oh = fdh;
8387904d
AM		 4760 }
4761
b31867b6 4762 return ppc_follow_link (fdh);
8387904d
AM		 4763}
4764
bb700d78
AM		 4765/* Make a fake function descriptor sym for the code sym FH. */
4766
4767static struct ppc_link_hash_entry *
4768make_fdh (struct bfd_link_info *info,
908b32fc 4769 struct ppc_link_hash_entry *fh)
bb700d78
AM		 4770{
4771 bfd *abfd;
4772 asymbol *newsym;
4773 struct bfd_link_hash_entry *bh;
4774 struct ppc_link_hash_entry *fdh;
4775
4776 abfd = fh->elf.root.u.undef.abfd;
4777 newsym = bfd_make_empty_symbol (abfd);
4778 newsym->name = fh->elf.root.root.string + 1;
4779 newsym->section = bfd_und_section_ptr;
4780 newsym->value = 0;
908b32fc 4781 newsym->flags = BSF_WEAK;
bb700d78
AM		 4782
4783 bh = NULL;
4784 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4785 newsym->flags, newsym->section,
4786 newsym->value, NULL, FALSE, FALSE,
4787 &bh))
4788 return NULL;
4789
4790 fdh = (struct ppc_link_hash_entry *) bh;
4791 fdh->elf.non_elf = 0;
908b32fc
AM		 4792 fdh->fake = 1;
4793 fdh->is_func_descriptor = 1;
4794 fdh->oh = fh;
4795 fh->is_func = 1;
4796 fh->oh = fdh;
bb700d78
AM		 4797 return fdh;
4798}
4799
8387904d
AM		 4800/* Fix function descriptor symbols defined in .opd sections to be
4801 function type. */
555cd476
AM		 4802
4803static bfd_boolean
c16153ae 4804ppc64_elf_add_symbol_hook (bfd *ibfd,
e054468f 4805 struct bfd_link_info *info,
555cd476 4806 Elf_Internal_Sym *isym,
6911b7dc 4807 const char **name,
555cd476
AM		 4808 flagword *flags ATTRIBUTE_UNUSED,
4809 asection **sec,
b53dfeb2 4810 bfd_vma *value)
555cd476 4811{
f1885d1e
AM		 4812 if ((ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
4813 || ELF_ST_BIND (isym->st_info) == STB_GNU_UNIQUE)
4814 && (ibfd->flags & DYNAMIC) == 0
4815 && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
f64b2e8d
NC		 4816 elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
4817
b53dfeb2 4818 if (*sec != NULL
f1885d1e 4819 && strcmp ((*sec)->name, ".opd") == 0)
b53dfeb2
AM		 4820 {
4821 asection *code_sec;
4822
4823 if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC
4824 || ELF_ST_TYPE (isym->st_info) == STT_FUNC))
4825 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
4826
4827 /* If the symbol is a function defined in .opd, and the function
4828 code is in a discarded group, let it appear to be undefined. */
4829 if (!info->relocatable
4830 && (*sec)->reloc_count != 0
4831 && opd_entry_value (*sec, *value, &code_sec, NULL,
4832 FALSE) != (bfd_vma) -1
4833 && discarded_section (code_sec))
4834 {
4835 *sec = bfd_und_section_ptr;
4836 isym->st_shndx = SHN_UNDEF;
4837 }
4838 }
dbd1e97e
AM		 4839 else if (*sec != NULL
4840 && strcmp ((*sec)->name, ".toc") == 0
4841 && ELF_ST_TYPE (isym->st_info) == STT_OBJECT)
4842 {
4843 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4844 if (htab != NULL)
4845 htab->params->object_in_toc = 1;
4846 }
433817dd 4847
6911b7dc
AM		 4848 if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0)
4849 {
4850 if (abiversion (ibfd) == 0)
4851 set_abiversion (ibfd, 2);
4852 else if (abiversion (ibfd) == 1)
4853 {
4854 info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other"
4855 " for ABI version 1\n"), name);
4856 bfd_set_error (bfd_error_bad_value);
4857 return FALSE;
4858 }
4859 }
4860
555cd476
AM		 4861 return TRUE;
4862}
4863
6911b7dc
AM		 4864/* Merge non-visibility st_other attributes: local entry point. */
4865
4866static void
4867ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h,
4868 const Elf_Internal_Sym *isym,
4869 bfd_boolean definition,
4870 bfd_boolean dynamic)
4871{
4872 if (definition && !dynamic)
4873 h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1))
4874 | ELF_ST_VISIBILITY (h->other));
4875}
4876
8387904d 4877/* This function makes an old ABI object reference to ".bar" cause the
908b32fc
AM		 4878 inclusion of a new ABI object archive that defines "bar".
4879 NAME is a symbol defined in an archive. Return a symbol in the hash
4880 table that might be satisfied by the archive symbols. */
8387904d
AM		 4881
4882static struct elf_link_hash_entry *
4883ppc64_elf_archive_symbol_lookup (bfd *abfd,
4884 struct bfd_link_info *info,
4885 const char *name)
4886{
4887 struct elf_link_hash_entry *h;
4888 char *dot_name;
4889 size_t len;
4890
4891 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
908b32fc
AM		 4892 if (h != NULL
4893 /* Don't return this sym if it is a fake function descriptor
4894 created by add_symbol_adjust. */
4895 && !(h->root.type == bfd_link_hash_undefweak
4896 && ((struct ppc_link_hash_entry *) h)->fake))
8387904d
AM		 4897 return h;
4898
4899 if (name[0] == '.')
4900 return h;
4901
4902 len = strlen (name);
4903 dot_name = bfd_alloc (abfd, len + 2);
4904 if (dot_name == NULL)
4905 return (struct elf_link_hash_entry *) 0 - 1;
4906 dot_name[0] = '.';
4907 memcpy (dot_name + 1, name, len + 1);
4908 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4909 bfd_release (abfd, dot_name);
4910 return h;
4911}
4912
4913/* This function satisfies all old ABI object references to ".bar" if a
99877b66
AM		 4914 new ABI object defines "bar". Well, at least, undefined dot symbols
4915 are made weak. This stops later archive searches from including an
4916 object if we already have a function descriptor definition. It also
35b0ce59
AM		 4917 prevents the linker complaining about undefined symbols.
4918 We also check and correct mismatched symbol visibility here. The
4919 most restrictive visibility of the function descriptor and the
4920 function entry symbol is used. */
8387904d
AM		 4921
4922static bfd_boolean
b3fac117 4923add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
8387904d 4924{
8387904d
AM		 4925 struct ppc_link_hash_table *htab;
4926 struct ppc_link_hash_entry *fdh;
4927
b3fac117 4928 if (eh->elf.root.type == bfd_link_hash_indirect)
8387904d
AM		 4929 return TRUE;
4930
b3fac117
AM		 4931 if (eh->elf.root.type == bfd_link_hash_warning)
4932 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
8387904d 4933
b3fac117
AM		 4934 if (eh->elf.root.root.string[0] != '.')
4935 abort ();
8387904d 4936
b3fac117 4937 htab = ppc_hash_table (info);
4dfe6ac6
NC		 4938 if (htab == NULL)
4939 return FALSE;
4940
b31867b6
AM		 4941 fdh = lookup_fdh (eh, htab);
4942 if (fdh == NULL)
4943 {
4944 if (!info->relocatable
4945 && (eh->elf.root.type == bfd_link_hash_undefined
4946 || eh->elf.root.type == bfd_link_hash_undefweak)
4947 && eh->elf.ref_regular)
4948 {
4949 /* Make an undefweak function descriptor sym, which is enough to
4950 pull in an --as-needed shared lib, but won't cause link
4951 errors. Archives are handled elsewhere. */
4952 fdh = make_fdh (info, eh);
4953 if (fdh == NULL)
4954 return FALSE;
4955 fdh->elf.ref_regular = 1;
4956 }
bb700d78 4957 }
b31867b6 4958 else
8387904d 4959 {
35b0ce59
AM		 4960 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4961 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4962 if (entry_vis < descr_vis)
4963 fdh->elf.other += entry_vis - descr_vis;
4964 else if (entry_vis > descr_vis)
4965 eh->elf.other += descr_vis - entry_vis;
4966
e87d886e
AM		 4967 if ((fdh->elf.root.type == bfd_link_hash_defined
4968 || fdh->elf.root.type == bfd_link_hash_defweak)
4969 && eh->elf.root.type == bfd_link_hash_undefined)
35b0ce59
AM		 4970 {
4971 eh->elf.root.type = bfd_link_hash_undefweak;
4972 eh->was_undefined = 1;
4973 htab->twiddled_syms = 1;
4974 }
8387904d 4975 }
99877b66 4976
8387904d
AM		 4977 return TRUE;
4978}
4979
f6c7c3e8
AM		 4980/* Set up opd section info and abiversion for IBFD, and process list
4981 of dot-symbols we made in link_hash_newfunc. */
b3fac117 4982
8387904d 4983static bfd_boolean
f6c7c3e8 4984ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info)
8387904d 4985{
99877b66 4986 struct ppc_link_hash_table *htab;
b3fac117 4987 struct ppc_link_hash_entry **p, *eh;
459609d6 4988 asection *opd = bfd_get_section_by_name (ibfd, ".opd");
433817dd 4989
459609d6 4990 if (opd != NULL && opd->size != 0)
b3fac117 4991 {
459609d6
AM		 4992 if (abiversion (ibfd) == 0)
4993 set_abiversion (ibfd, 1);
4994 else if (abiversion (ibfd) == 2)
f6c7c3e8 4995 {
459609d6
AM		 4996 info->callbacks->einfo (_("%P: %B .opd not allowed in ABI"
4997 " version %d\n"),
4998 ibfd, abiversion (ibfd));
4999 bfd_set_error (bfd_error_bad_value);
5000 return FALSE;
f6c7c3e8
AM		 5001 }
5002
459609d6
AM		 5003 if ((ibfd->flags & DYNAMIC) == 0
5004 && (opd->flags & SEC_RELOC) != 0
5005 && opd->reloc_count != 0
5006 && !bfd_is_abs_section (opd->output_section))
b3fac117 5007 {
459609d6
AM		 5008 /* Garbage collection needs some extra help with .opd sections.
5009 We don't want to necessarily keep everything referenced by
5010 relocs in .opd, as that would keep all functions. Instead,
5011 if we reference an .opd symbol (a function descriptor), we
5012 want to keep the function code symbol's section. This is
5013 easy for global symbols, but for local syms we need to keep
5014 information about the associated function section. */
5015 bfd_size_type amt;
5016 asection **opd_sym_map;
5017
51aecdc5 5018 amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map);
459609d6
AM		 5019 opd_sym_map = bfd_zalloc (ibfd, amt);
5020 if (opd_sym_map == NULL)
b3fac117 5021 return FALSE;
459609d6
AM		 5022 ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map;
5023 BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal);
5024 ppc64_elf_section_data (opd)->sec_type = sec_opd;
b3fac117
AM		 5025 }
5026 }
5027
459609d6
AM		 5028 if (!is_ppc64_elf (info->output_bfd))
5029 return TRUE;
5030 htab = ppc_hash_table (info);
5031 if (htab == NULL)
5032 return FALSE;
5033
5034 /* For input files without an explicit abiversion in e_flags
5035 we should have flagged any with symbol st_other bits set
5036 as ELFv1 and above flagged those with .opd as ELFv2.
5037 Set the output abiversion if not yet set, and for any input
5038 still ambiguous, take its abiversion from the output.
5039 Differences in ABI are reported later. */
5040 if (abiversion (info->output_bfd) == 0)
5041 set_abiversion (info->output_bfd, abiversion (ibfd));
5042 else if (abiversion (ibfd) == 0)
5043 set_abiversion (ibfd, abiversion (info->output_bfd));
5044
5045 p = &htab->dot_syms;
5046 while ((eh = *p) != NULL)
5047 {
5048 *p = NULL;
5049 if (&eh->elf == htab->elf.hgot)
5050 ;
5051 else if (htab->elf.hgot == NULL
5052 && strcmp (eh->elf.root.root.string, ".TOC.") == 0)
5053 htab->elf.hgot = &eh->elf;
5054 else if (!add_symbol_adjust (eh, info))
5055 return FALSE;
5056 p = &eh->u.next_dot_sym;
5057 }
5058
b3fac117
AM		 5059 /* Clear the list for non-ppc64 input files. */
5060 p = &htab->dot_syms;
5061 while ((eh = *p) != NULL)
5062 {
5063 *p = NULL;
5064 p = &eh->u.next_dot_sym;
5065 }
99877b66
AM		 5066
5067 /* We need to fix the undefs list for any syms we have twiddled to
5068 undef_weak. */
5069 if (htab->twiddled_syms)
5070 {
77cfaee6 5071 bfd_link_repair_undef_list (&htab->elf.root);
99877b66
AM		 5072 htab->twiddled_syms = 0;
5073 }
b3fac117 5074 return TRUE;
8387904d
AM		 5075}
5076
97fed1c9
JJ		 5077/* Undo hash table changes when an --as-needed input file is determined
5078 not to be needed. */
5079
5080static bfd_boolean
e5034e59
AM		 5081ppc64_elf_notice_as_needed (bfd *ibfd,
5082 struct bfd_link_info *info,
5083 enum notice_asneeded_action act)
97fed1c9 5084{
e5034e59
AM		 5085 if (act == notice_not_needed)
5086 {
5087 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4dfe6ac6 5088
e5034e59
AM		 5089 if (htab == NULL)
5090 return FALSE;
4dfe6ac6 5091
e5034e59
AM		 5092 htab->dot_syms = NULL;
5093 }
5094 return _bfd_elf_notice_as_needed (ibfd, info, act);
97fed1c9
JJ		 5095}
5096
aa374f67
AM		 5097/* If --just-symbols against a final linked binary, then assume we need
5098 toc adjusting stubs when calling functions defined there. */
5099
5100static void
5101ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info)
5102{
5103 if ((sec->flags & SEC_CODE) != 0
5104 && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0
5105 && is_ppc64_elf (sec->owner))
5106 {
2c3f079f
AM		 5107 if (abiversion (sec->owner) >= 2
5108 || bfd_get_section_by_name (sec->owner, ".opd") != NULL)
aa374f67
AM		 5109 sec->has_toc_reloc = 1;
5110 }
5111 _bfd_elf_link_just_syms (sec, info);
5112}
5113
e054468f 5114static struct plt_entry **
4ce794b7
AM		 5115update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
5116 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 5117{
5118 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e054468f 5119 struct plt_entry **local_plt;
f961d9dd 5120 unsigned char *local_got_tls_masks;
411e1bfb
AM		 5121
5122 if (local_got_ents == NULL)
5123 {
5124 bfd_size_type size = symtab_hdr->sh_info;
5125
e054468f
AM		 5126 size *= (sizeof (*local_got_ents)
5127 + sizeof (*local_plt)
5128 + sizeof (*local_got_tls_masks));
4ce794b7 5129 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb 5130 if (local_got_ents == NULL)
e054468f 5131 return NULL;
411e1bfb
AM		 5132 elf_local_got_ents (abfd) = local_got_ents;
5133 }
5134
e054468f 5135 if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0)
411e1bfb
AM		 5136 {
5137 struct got_entry *ent;
5138
5139 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 5140 if (ent->addend == r_addend
5141 && ent->owner == abfd
5142 && ent->tls_type == tls_type)
411e1bfb
AM		 5143 break;
5144 if (ent == NULL)
5145 {
5146 bfd_size_type amt = sizeof (*ent);
4ce794b7 5147 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 5148 if (ent == NULL)
5149 return FALSE;
5150 ent->next = local_got_ents[r_symndx];
5151 ent->addend = r_addend;
e717da7e 5152 ent->owner = abfd;
411e1bfb 5153 ent->tls_type = tls_type;
927be08e 5154 ent->is_indirect = FALSE;
411e1bfb
AM		 5155 ent->got.refcount = 0;
5156 local_got_ents[r_symndx] = ent;
5157 }
5158 ent->got.refcount += 1;
5159 }
5160
e054468f 5161 local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info);
f961d9dd 5162 local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
e7b938ca 5163 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM		 5164
5165 return local_plt + r_symndx;
65f38f15
AM		 5166}
5167
411e1bfb 5168static bfd_boolean
e054468f 5169update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend)
1e2f5b6e 5170{
411e1bfb 5171 struct plt_entry *ent;
1e2f5b6e 5172
e054468f 5173 for (ent = *plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 5174 if (ent->addend == addend)
5175 break;
5176 if (ent == NULL)
1e2f5b6e 5177 {
411e1bfb 5178 bfd_size_type amt = sizeof (*ent);
4ce794b7 5179 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 5180 if (ent == NULL)
5181 return FALSE;
e054468f 5182 ent->next = *plist;
411e1bfb
AM		 5183 ent->addend = addend;
5184 ent->plt.refcount = 0;
e054468f 5185 *plist = ent;
1e2f5b6e 5186 }
411e1bfb 5187 ent->plt.refcount += 1;
b34976b6 5188 return TRUE;
1e2f5b6e
AM		 5189}
5190
e054468f
AM		 5191static bfd_boolean
5192is_branch_reloc (enum elf_ppc64_reloc_type r_type)
5193{
5194 return (r_type == R_PPC64_REL24
5195 || r_type == R_PPC64_REL14
5196 || r_type == R_PPC64_REL14_BRTAKEN
5197 || r_type == R_PPC64_REL14_BRNTAKEN
5198 || r_type == R_PPC64_ADDR24
5199 || r_type == R_PPC64_ADDR14
5200 || r_type == R_PPC64_ADDR14_BRTAKEN
5201 || r_type == R_PPC64_ADDR14_BRNTAKEN);
5202}
5203
5bd4f169 5204/* Look through the relocs for a section during the first phase, and
65f38f15 5205 calculate needed space in the global offset table, procedure
5d1634d7 5206 linkage table, and dynamic reloc sections. */
5bd4f169 5207
b34976b6 5208static bfd_boolean
4ce794b7
AM		 5209ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
5210 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 5211{
65f38f15 5212 struct ppc_link_hash_table *htab;
5bd4f169 5213 Elf_Internal_Shdr *symtab_hdr;
c7e2358a 5214 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 5215 const Elf_Internal_Rela *rel;
5216 const Elf_Internal_Rela *rel_end;
5bd4f169 5217 asection *sreloc;
1e2f5b6e 5218 asection **opd_sym_map;
3a71aa26 5219 struct elf_link_hash_entry *tga, *dottga;
5bd4f169 5220
1049f94e 5221 if (info->relocatable)
b34976b6 5222 return TRUE;
5bd4f169 5223
680a3378
AM		 5224 /* Don't do anything special with non-loaded, non-alloced sections.
5225 In particular, any relocs in such sections should not affect GOT
5226 and PLT reference counting (ie. we don't allow them to create GOT
5227 or PLT entries), there's no possibility or desire to optimize TLS
5228 relocs, and there's not much point in propagating relocs to shared
5229 libs that the dynamic linker won't relocate. */
5230 if ((sec->flags & SEC_ALLOC) == 0)
5231 return TRUE;
5232
0c8d6e5c 5233 BFD_ASSERT (is_ppc64_elf (abfd));
0ffa91dd 5234
65f38f15 5235 htab = ppc_hash_table (info);
4dfe6ac6
NC		 5236 if (htab == NULL)
5237 return FALSE;
5238
3a71aa26
AM		 5239 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
5240 FALSE, FALSE, TRUE);
5241 dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
5242 FALSE, FALSE, TRUE);
0ffa91dd 5243 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169 5244 sym_hashes = elf_sym_hashes (abfd);
5bd4f169 5245 sreloc = NULL;
1e2f5b6e 5246 opd_sym_map = NULL;
f6c7c3e8
AM		 5247 if (ppc64_elf_section_data (sec) != NULL
5248 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
5249 opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec;
5bd4f169
AM		 5250
5251 rel_end = relocs + sec->reloc_count;
5252 for (rel = relocs; rel < rel_end; rel++)
5253 {
5254 unsigned long r_symndx;
5255 struct elf_link_hash_entry *h;
04c9666a 5256 enum elf_ppc64_reloc_type r_type;
727fc41e 5257 int tls_type;
7c8fe5c4 5258 struct _ppc64_elf_section_data *ppc64_sec;
e054468f 5259 struct plt_entry **ifunc;
5bd4f169
AM		 5260
5261 r_symndx = ELF64_R_SYM (rel->r_info);
5262 if (r_symndx < symtab_hdr->sh_info)
5263 h = NULL;
5264 else
973a3492
L		 5265 {
5266 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 5267 h = elf_follow_link (h);
81fbe831
AM		 5268
5269 /* PR15323, ref flags aren't set for references in the same
5270 object. */
5271 h->root.non_ir_ref = 1;
1c865ab2
AM		 5272
5273 if (h == htab->elf.hgot)
5274 sec->has_toc_reloc = 1;
973a3492 5275 }
5bd4f169 5276
727fc41e 5277 tls_type = 0;
e054468f 5278 ifunc = NULL;
25f23106
AM		 5279 if (h != NULL)
5280 {
5281 if (h->type == STT_GNU_IFUNC)
5282 {
5283 h->needs_plt = 1;
5284 ifunc = &h->plt.plist;
5285 }
5286 }
5287 else
5288 {
5289 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5290 abfd, r_symndx);
5291 if (isym == NULL)
5292 return FALSE;
5293
5294 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
5295 {
5296 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
5297 rel->r_addend, PLT_IFUNC);
5298 if (ifunc == NULL)
5299 return FALSE;
5300 }
5301 }
4ce794b7 5302 r_type = ELF64_R_TYPE (rel->r_info);
e054468f
AM		 5303 if (is_branch_reloc (r_type))
5304 {
5305 if (h != NULL && (h == tga || h == dottga))
5306 {
5307 if (rel != relocs
5308 && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD
5309 || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD))
5310 /* We have a new-style __tls_get_addr call with a marker
5311 reloc. */
5312 ;
5313 else
5314 /* Mark this section as having an old-style call. */
5315 sec->has_tls_get_addr_call = 1;
5316 }
727fc41e 5317
e054468f 5318 /* STT_GNU_IFUNC symbols must have a PLT entry. */
e054468f
AM		 5319 if (ifunc != NULL
5320 && !update_plt_info (abfd, ifunc, rel->r_addend))
5321 return FALSE;
5322 }
727fc41e 5323
a33d1f77 5324 switch (r_type)
5bd4f169 5325 {
727fc41e
AM		 5326 case R_PPC64_TLSGD:
5327 case R_PPC64_TLSLD:
5328 /* These special tls relocs tie a call to __tls_get_addr with
5329 its parameter symbol. */
5330 break;
5331
411e1bfb
AM		 5332 case R_PPC64_GOT_TLSLD16:
5333 case R_PPC64_GOT_TLSLD16_LO:
5334 case R_PPC64_GOT_TLSLD16_HI:
5335 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 5336 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5337 goto dogottls;
5338
5339 case R_PPC64_GOT_TLSGD16:
5340 case R_PPC64_GOT_TLSGD16_LO:
5341 case R_PPC64_GOT_TLSGD16_HI:
5342 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5343 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5344 goto dogottls;
5345
5346 case R_PPC64_GOT_TPREL16_DS:
5347 case R_PPC64_GOT_TPREL16_LO_DS:
5348 case R_PPC64_GOT_TPREL16_HI:
5349 case R_PPC64_GOT_TPREL16_HA:
afb93314 5350 if (info->shared)
411e1bfb
AM		 5351 info->flags |= DF_STATIC_TLS;
5352 tls_type = TLS_TLS | TLS_TPREL;
5353 goto dogottls;
5354
5355 case R_PPC64_GOT_DTPREL16_DS:
5356 case R_PPC64_GOT_DTPREL16_LO_DS:
5357 case R_PPC64_GOT_DTPREL16_HI:
5358 case R_PPC64_GOT_DTPREL16_HA:
5359 tls_type = TLS_TLS | TLS_DTPREL;
5360 dogottls:
5361 sec->has_tls_reloc = 1;
5362 /* Fall thru */
5363
5bd4f169 5364 case R_PPC64_GOT16:
5bd4f169 5365 case R_PPC64_GOT16_DS:
65f38f15
AM		 5366 case R_PPC64_GOT16_HA:
5367 case R_PPC64_GOT16_HI:
5368 case R_PPC64_GOT16_LO:
5bd4f169 5369 case R_PPC64_GOT16_LO_DS:
65f38f15 5370 /* This symbol requires a global offset table entry. */
4c52953f 5371 sec->has_toc_reloc = 1;
33c0ec9d
AM		 5372 if (r_type == R_PPC64_GOT_TLSLD16
5373 || r_type == R_PPC64_GOT_TLSGD16
5374 || r_type == R_PPC64_GOT_TPREL16_DS
5375 || r_type == R_PPC64_GOT_DTPREL16_DS
5376 || r_type == R_PPC64_GOT16
5377 || r_type == R_PPC64_GOT16_DS)
5378 {
5379 htab->do_multi_toc = 1;
d77c8a4b 5380 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
33c0ec9d
AM		 5381 }
5382
e717da7e
AM		 5383 if (ppc64_elf_tdata (abfd)->got == NULL
5384 && !create_got_section (abfd, info))
b34976b6 5385 return FALSE;
5bd4f169
AM		 5386
5387 if (h != NULL)
5388 {
411e1bfb
AM		 5389 struct ppc_link_hash_entry *eh;
5390 struct got_entry *ent;
65f38f15 5391
411e1bfb
AM		 5392 eh = (struct ppc_link_hash_entry *) h;
5393 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
5394 if (ent->addend == rel->r_addend
e717da7e 5395 && ent->owner == abfd
411e1bfb
AM		 5396 && ent->tls_type == tls_type)
5397 break;
5398 if (ent == NULL)
5bd4f169 5399 {
411e1bfb 5400 bfd_size_type amt = sizeof (*ent);
4ce794b7 5401 ent = bfd_alloc (abfd, amt);
411e1bfb 5402 if (ent == NULL)
b34976b6 5403 return FALSE;
411e1bfb
AM		 5404 ent->next = eh->elf.got.glist;
5405 ent->addend = rel->r_addend;
e717da7e 5406 ent->owner = abfd;
411e1bfb 5407 ent->tls_type = tls_type;
927be08e 5408 ent->is_indirect = FALSE;
411e1bfb
AM		 5409 ent->got.refcount = 0;
5410 eh->elf.got.glist = ent;
5bd4f169 5411 }
411e1bfb 5412 ent->got.refcount += 1;
e7b938ca 5413 eh->tls_mask |= tls_type;
5bd4f169 5414 }
411e1bfb
AM		 5415 else
5416 /* This is a global offset table entry for a local symbol. */
5417 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5418 rel->r_addend, tls_type))
5419 return FALSE;
a345bc8d
AM		 5420
5421 /* We may also need a plt entry if the symbol turns out to be
5422 an ifunc. */
f6c7c3e8 5423 if (h != NULL && !info->shared && abiversion (abfd) != 1)
a345bc8d
AM		 5424 {
5425 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5426 return FALSE;
5427 }
5bd4f169
AM		 5428 break;
5429
5bd4f169 5430 case R_PPC64_PLT16_HA:
65f38f15
AM		 5431 case R_PPC64_PLT16_HI:
5432 case R_PPC64_PLT16_LO:
5433 case R_PPC64_PLT32:
5434 case R_PPC64_PLT64:
5bd4f169 5435 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 5436 actually build the entry in adjust_dynamic_symbol,
5437 because this might be a case of linking PIC code without
5438 linking in any dynamic objects, in which case we don't
5439 need to generate a procedure linkage table after all. */
5bd4f169
AM		 5440 if (h == NULL)
5441 {
5442 /* It does not make sense to have a procedure linkage
3fad3c7c 5443 table entry for a local symbol. */
5bd4f169 5444 bfd_set_error (bfd_error_bad_value);
b34976b6 5445 return FALSE;
5bd4f169 5446 }
411e1bfb 5447 else
e054468f
AM		 5448 {
5449 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5450 return FALSE;
5451 h->needs_plt = 1;
5452 if (h->root.root.string[0] == '.'
5453 && h->root.root.string[1] != '\0')
5454 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5455 }
5bd4f169
AM		 5456 break;
5457
5458 /* The following relocations don't need to propagate the
5459 relocation if linking a shared object since they are
5460 section relative. */
5461 case R_PPC64_SECTOFF:
5462 case R_PPC64_SECTOFF_LO:
5463 case R_PPC64_SECTOFF_HI:
5464 case R_PPC64_SECTOFF_HA:
5465 case R_PPC64_SECTOFF_DS:
5466 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 5467 case R_PPC64_DTPREL16:
5468 case R_PPC64_DTPREL16_LO:
5469 case R_PPC64_DTPREL16_HI:
5470 case R_PPC64_DTPREL16_HA:
5471 case R_PPC64_DTPREL16_DS:
5472 case R_PPC64_DTPREL16_LO_DS:
f9c6b907
AM		 5473 case R_PPC64_DTPREL16_HIGH:
5474 case R_PPC64_DTPREL16_HIGHA:
411e1bfb
AM		 5475 case R_PPC64_DTPREL16_HIGHER:
5476 case R_PPC64_DTPREL16_HIGHERA:
5477 case R_PPC64_DTPREL16_HIGHEST:
5478 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 5479 break;
5480
ad8e1ba5 5481 /* Nor do these. */
25f23106
AM		 5482 case R_PPC64_REL16:
5483 case R_PPC64_REL16_LO:
5484 case R_PPC64_REL16_HI:
5485 case R_PPC64_REL16_HA:
5486 break;
5487
45965137
AM		 5488 /* Not supported as a dynamic relocation. */
5489 case R_PPC64_ADDR64_LOCAL:
5490 if (info->shared)
5491 {
5492 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5493 ppc_howto_init ();
5494 info->callbacks->einfo (_("%P: %H: %s reloc unsupported "
5495 "in shared libraries and PIEs.\n"),
5496 abfd, sec, rel->r_offset,
5497 ppc64_elf_howto_table[r_type]->name);
5498 bfd_set_error (bfd_error_bad_value);
5499 return FALSE;
5500 }
5501 break;
5502
ad8e1ba5 5503 case R_PPC64_TOC16:
33c0ec9d
AM		 5504 case R_PPC64_TOC16_DS:
5505 htab->do_multi_toc = 1;
d77c8a4b 5506 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
ad8e1ba5
AM		 5507 case R_PPC64_TOC16_LO:
5508 case R_PPC64_TOC16_HI:
5509 case R_PPC64_TOC16_HA:
ad8e1ba5 5510 case R_PPC64_TOC16_LO_DS:
4c52953f 5511 sec->has_toc_reloc = 1;
ad8e1ba5
AM		 5512 break;
5513
5bd4f169
AM		 5514 /* This relocation describes the C++ object vtable hierarchy.
5515 Reconstruct it for later use during GC. */
5516 case R_PPC64_GNU_VTINHERIT:
c152c796 5517 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 5518 return FALSE;
5bd4f169
AM		 5519 break;
5520
5521 /* This relocation describes which C++ vtable entries are actually
5522 used. Record for later use during GC. */
5523 case R_PPC64_GNU_VTENTRY:
d17e0c6e
JB		 5524 BFD_ASSERT (h != NULL);
5525 if (h != NULL
5526 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 5527 return FALSE;
5bd4f169
AM		 5528 break;
5529
721956f4
AM		 5530 case R_PPC64_REL14:
5531 case R_PPC64_REL14_BRTAKEN:
5532 case R_PPC64_REL14_BRNTAKEN:
220c76dd
AM		 5533 {
5534 asection *dest = NULL;
5535
5536 /* Heuristic: If jumping outside our section, chances are
5537 we are going to need a stub. */
5538 if (h != NULL)
5539 {
5540 /* If the sym is weak it may be overridden later, so
5541 don't assume we know where a weak sym lives. */
5542 if (h->root.type == bfd_link_hash_defined)
5543 dest = h->root.u.def.section;
5544 }
5545 else
87d72d41
AM		 5546 {
5547 Elf_Internal_Sym *isym;
5548
5549 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5550 abfd, r_symndx);
5551 if (isym == NULL)
5552 return FALSE;
5553
5554 dest = bfd_section_from_elf_index (abfd, isym->st_shndx);
5555 }
5556
220c76dd 5557 if (dest != sec)
7c8fe5c4 5558 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
220c76dd 5559 }
721956f4
AM		 5560 /* Fall through. */
5561
5d1634d7 5562 case R_PPC64_REL24:
e054468f 5563 if (h != NULL && ifunc == NULL)
5d1634d7
AM		 5564 {
5565 /* We may need a .plt entry if the function this reloc
5566 refers to is in a shared lib. */
e054468f 5567 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
411e1bfb 5568 return FALSE;
e054468f
AM		 5569 h->needs_plt = 1;
5570 if (h->root.root.string[0] == '.'
5571 && h->root.root.string[1] != '\0')
5572 ((struct ppc_link_hash_entry *) h)->is_func = 1;
3a71aa26 5573 if (h == tga || h == dottga)
411e1bfb 5574 sec->has_tls_reloc = 1;
411e1bfb
AM		 5575 }
5576 break;
5577
5578 case R_PPC64_TPREL64:
5579 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
afb93314 5580 if (info->shared)
411e1bfb
AM		 5581 info->flags |= DF_STATIC_TLS;
5582 goto dotlstoc;
5583
5584 case R_PPC64_DTPMOD64:
5585 if (rel + 1 < rel_end
5586 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
5587 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 5588 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 5589 else
951fd09b 5590 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 5591 goto dotlstoc;
5592
5593 case R_PPC64_DTPREL64:
5594 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
5595 if (rel != relocs
5596 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
5597 && rel[-1].r_offset == rel->r_offset - 8)
5598 /* This is the second reloc of a dtpmod, dtprel pair.
5599 Don't mark with TLS_DTPREL. */
5600 goto dodyn;
5601
5602 dotlstoc:
5603 sec->has_tls_reloc = 1;
5604 if (h != NULL)
5605 {
5606 struct ppc_link_hash_entry *eh;
5607 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 5608 eh->tls_mask |= tls_type;
411e1bfb
AM		 5609 }
5610 else
5611 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5612 rel->r_addend, tls_type))
5613 return FALSE;
5614
7c8fe5c4
AM		 5615 ppc64_sec = ppc64_elf_section_data (sec);
5616 if (ppc64_sec->sec_type != sec_toc)
411e1bfb 5617 {
3a71aa26
AM		 5618 bfd_size_type amt;
5619
e7b938ca 5620 /* One extra to simplify get_tls_mask. */
3a71aa26
AM		 5621 amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned);
5622 ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt);
5623 if (ppc64_sec->u.toc.symndx == NULL)
5624 return FALSE;
5625 amt = sec->size * sizeof (bfd_vma) / 8;
5626 ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt);
5627 if (ppc64_sec->u.toc.add == NULL)
411e1bfb 5628 return FALSE;
7c8fe5c4
AM		 5629 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
5630 ppc64_sec->sec_type = sec_toc;
411e1bfb
AM		 5631 }
5632 BFD_ASSERT (rel->r_offset % 8 == 0);
3a71aa26
AM		 5633 ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx;
5634 ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend;
951fd09b
AM		 5635
5636 /* Mark the second slot of a GD or LD entry.
5637 -1 to indicate GD and -2 to indicate LD. */
5638 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3a71aa26 5639 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1;
951fd09b 5640 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3a71aa26 5641 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 5642 goto dodyn;
5643
5644 case R_PPC64_TPREL16:
5645 case R_PPC64_TPREL16_LO:
5646 case R_PPC64_TPREL16_HI:
5647 case R_PPC64_TPREL16_HA:
5648 case R_PPC64_TPREL16_DS:
5649 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 5650 case R_PPC64_TPREL16_HIGH:
5651 case R_PPC64_TPREL16_HIGHA:
411e1bfb
AM		 5652 case R_PPC64_TPREL16_HIGHER:
5653 case R_PPC64_TPREL16_HIGHERA:
5654 case R_PPC64_TPREL16_HIGHEST:
5655 case R_PPC64_TPREL16_HIGHESTA:
5656 if (info->shared)
5657 {
afb93314 5658 info->flags |= DF_STATIC_TLS;
411e1bfb 5659 goto dodyn;
5d1634d7
AM		 5660 }
5661 break;
5662
e86ce104 5663 case R_PPC64_ADDR64:
1e2f5b6e 5664 if (opd_sym_map != NULL
1e2f5b6e 5665 && rel + 1 < rel_end
4ce794b7 5666 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e 5667 {
8387904d
AM		 5668 if (h != NULL)
5669 {
5670 if (h->root.root.string[0] == '.'
5671 && h->root.root.string[1] != 0
b31867b6 5672 && lookup_fdh ((struct ppc_link_hash_entry *) h, htab))
8387904d
AM		 5673 ;
5674 else
5675 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5676 }
5677 else
5678 {
5679 asection *s;
87d72d41 5680 Elf_Internal_Sym *isym;
1e2f5b6e 5681
87d72d41
AM		 5682 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5683 abfd, r_symndx);
5684 if (isym == NULL)
8387904d 5685 return FALSE;
87d72d41
AM		 5686
5687 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5688 if (s != NULL && s != sec)
51aecdc5 5689 opd_sym_map[OPD_NDX (rel->r_offset)] = s;
8387904d 5690 }
1e2f5b6e 5691 }
e86ce104
AM		 5692 /* Fall through. */
5693
65f38f15
AM		 5694 case R_PPC64_ADDR16:
5695 case R_PPC64_ADDR16_DS:
5696 case R_PPC64_ADDR16_HA:
5697 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 5698 case R_PPC64_ADDR16_HIGH:
5699 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 5700 case R_PPC64_ADDR16_HIGHER:
5701 case R_PPC64_ADDR16_HIGHERA:
5702 case R_PPC64_ADDR16_HIGHEST:
5703 case R_PPC64_ADDR16_HIGHESTA:
5704 case R_PPC64_ADDR16_LO:
5705 case R_PPC64_ADDR16_LO_DS:
f6c7c3e8 5706 if (h != NULL && !info->shared && abiversion (abfd) != 1
a345bc8d
AM		 5707 && rel->r_addend == 0)
5708 {
5709 /* We may need a .plt entry if this reloc refers to a
5710 function in a shared lib. */
5711 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5712 return FALSE;
5713 h->pointer_equality_needed = 1;
5714 }
5715 /* Fall through. */
5716
5717 case R_PPC64_REL30:
5718 case R_PPC64_REL32:
5719 case R_PPC64_REL64:
5720 case R_PPC64_ADDR14:
5721 case R_PPC64_ADDR14_BRNTAKEN:
5722 case R_PPC64_ADDR14_BRTAKEN:
65f38f15 5723 case R_PPC64_ADDR24:
65f38f15 5724 case R_PPC64_ADDR32:
65f38f15
AM		 5725 case R_PPC64_UADDR16:
5726 case R_PPC64_UADDR32:
5727 case R_PPC64_UADDR64:
5bd4f169 5728 case R_PPC64_TOC:
81848ca0
AM		 5729 if (h != NULL && !info->shared)
5730 /* We may need a copy reloc. */
f5385ebf 5731 h->non_got_ref = 1;
81848ca0 5732
41bd81ab 5733 /* Don't propagate .opd relocs. */
1e2f5b6e 5734 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 5735 break;
e86ce104 5736
65f38f15
AM		 5737 /* If we are creating a shared library, and this is a reloc
5738 against a global symbol, or a non PC relative reloc
5739 against a local symbol, then we need to copy the reloc
5740 into the shared library. However, if we are linking with
5741 -Bsymbolic, we do not need to copy a reloc against a
5742 global symbol which is defined in an object we are
5743 including in the link (i.e., DEF_REGULAR is set). At
5744 this point we have not seen all the input files, so it is
5745 possible that DEF_REGULAR is not set now but will be set
5746 later (it is never cleared). In case of a weak definition,
5747 DEF_REGULAR may be cleared later by a strong definition in
5748 a shared library. We account for that possibility below by
f4656909 5749 storing information in the dyn_relocs field of the hash
65f38f15
AM		 5750 table entry. A similar situation occurs when creating
5751 shared libraries and symbol visibility changes render the
5752 symbol local.
5753
5754 If on the other hand, we are creating an executable, we
5755 may need to keep relocations for symbols satisfied by a
5756 dynamic library if we manage to avoid copy relocs for the
5757 symbol. */
411e1bfb 5758 dodyn:
65f38f15 5759 if ((info->shared
1d483afe 5760 && (must_be_dyn_reloc (info, r_type)
65f38f15 5761 || (h != NULL
198f1157 5762 && (!SYMBOLIC_BIND (info, h)
65f38f15 5763 || h->root.type == bfd_link_hash_defweak
f5385ebf 5764 || !h->def_regular))))
f4656909
AM		 5765 || (ELIMINATE_COPY_RELOCS
5766 && !info->shared
65f38f15
AM		 5767 && h != NULL
5768 && (h->root.type == bfd_link_hash_defweak
25f23106
AM		 5769 || !h->def_regular))
5770 || (!info->shared
5771 && ifunc != NULL))
5bd4f169 5772 {
65f38f15
AM		 5773 /* We must copy these reloc types into the output file.
5774 Create a reloc section in dynobj and make room for
5775 this reloc. */
5bd4f169
AM		 5776 if (sreloc == NULL)
5777 {
83bac4b0
NC		 5778 sreloc = _bfd_elf_make_dynamic_reloc_section
5779 (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE);
65f38f15 5780
5bd4f169 5781 if (sreloc == NULL)
83bac4b0 5782 return FALSE;
5bd4f169
AM		 5783 }
5784
65f38f15
AM		 5785 /* If this is a global symbol, we count the number of
5786 relocations we need for this symbol. */
5787 if (h != NULL)
5788 {
19e08130
AM		 5789 struct elf_dyn_relocs *p;
5790 struct elf_dyn_relocs **head;
5791
ec338859 5792 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
19e08130
AM		 5793 p = *head;
5794 if (p == NULL || p->sec != sec)
5795 {
5796 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5797 if (p == NULL)
5798 return FALSE;
5799 p->next = *head;
5800 *head = p;
5801 p->sec = sec;
5802 p->count = 0;
5803 p->pc_count = 0;
5804 }
5805 p->count += 1;
5806 if (!must_be_dyn_reloc (info, r_type))
5807 p->pc_count += 1;
65f38f15
AM		 5808 }
5809 else
5810 {
ec338859
AM		 5811 /* Track dynamic relocs needed for local syms too.
5812 We really need local syms available to do this
5813 easily. Oh well. */
19e08130
AM		 5814 struct ppc_dyn_relocs *p;
5815 struct ppc_dyn_relocs **head;
5816 bfd_boolean is_ifunc;
ec338859 5817 asection *s;
6edfbbad 5818 void *vpp;
87d72d41 5819 Elf_Internal_Sym *isym;
6edfbbad 5820
87d72d41
AM		 5821 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5822 abfd, r_symndx);
5823 if (isym == NULL)
b34976b6 5824 return FALSE;
ec338859 5825
87d72d41
AM		 5826 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5827 if (s == NULL)
5828 s = sec;
5829
6edfbbad 5830 vpp = &elf_section_data (s)->local_dynrel;
19e08130
AM		 5831 head = (struct ppc_dyn_relocs **) vpp;
5832 is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
5833 p = *head;
5834 if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
5835 p = p->next;
5836 if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
5837 {
5838 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
5839 if (p == NULL)
5840 return FALSE;
5841 p->next = *head;
5842 *head = p;
5843 p->sec = sec;
5844 p->ifunc = is_ifunc;
5845 p->count = 0;
5846 }
5847 p->count += 1;
ec338859 5848 }
65f38f15 5849 }
5bd4f169 5850 break;
65f38f15
AM		 5851
5852 default:
96e0dda4 5853 break;
5bd4f169
AM		 5854 }
5855 }
5856
b34976b6 5857 return TRUE;
5bd4f169
AM		 5858}
5859
ee67d69a
AM		 5860/* Merge backend specific data from an object file to the output
5861 object file when linking. */
5862
5863static bfd_boolean
5864ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5865{
5866 unsigned long iflags, oflags;
5867
5868 if ((ibfd->flags & BFD_LINKER_CREATED) != 0)
5869 return TRUE;
5870
5871 if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd))
5872 return TRUE;
5873
5874 if (!_bfd_generic_verify_endian_match (ibfd, obfd))
5875 return FALSE;
5876
5877 iflags = elf_elfheader (ibfd)->e_flags;
5878 oflags = elf_elfheader (obfd)->e_flags;
5879
f6c7c3e8 5880 if (iflags & ~EF_PPC64_ABI)
ee67d69a
AM		 5881 {
5882 (*_bfd_error_handler)
5883 (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags);
5884 bfd_set_error (bfd_error_bad_value);
5885 return FALSE;
5886 }
f6c7c3e8 5887 else if (iflags != oflags && iflags != 0)
ee67d69a
AM		 5888 {
5889 (*_bfd_error_handler)
5890 (_("%B: ABI version %ld is not compatible with ABI version %ld output"),
5891 ibfd, iflags, oflags);
5892 bfd_set_error (bfd_error_bad_value);
5893 return FALSE;
5894 }
5895
5896 /* Merge Tag_compatibility attributes and any common GNU ones. */
5897 _bfd_elf_merge_object_attributes (ibfd, obfd);
5898
5899 return TRUE;
5900}
5901
5902static bfd_boolean
5903ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr)
5904{
5905 /* Print normal ELF private data. */
5906 _bfd_elf_print_private_bfd_data (abfd, ptr);
5907
5908 if (elf_elfheader (abfd)->e_flags != 0)
5909 {
5910 FILE *file = ptr;
5911
5912 /* xgettext:c-format */
5913 fprintf (file, _("private flags = 0x%lx:"),
5914 elf_elfheader (abfd)->e_flags);
5915
5916 if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0)
5917 fprintf (file, _(" [abiv%ld]"),
5918 elf_elfheader (abfd)->e_flags & EF_PPC64_ABI);
5919 fputc ('\n', file);
5920 }
5921
5922 return TRUE;
5923}
5924
8387904d 5925/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
b53dfeb2
AM		 5926 of the code entry point, and its section, which must be in the same
5927 object as OPD_SEC. Returns (bfd_vma) -1 on error. */
8387904d
AM		 5928
5929static bfd_vma
5930opd_entry_value (asection *opd_sec,
5931 bfd_vma offset,
5932 asection **code_sec,
aef36ac1
AM		 5933 bfd_vma *code_off,
5934 bfd_boolean in_code_sec)
8387904d
AM		 5935{
5936 bfd *opd_bfd = opd_sec->owner;
8860955f 5937 Elf_Internal_Rela *relocs;
8387904d 5938 Elf_Internal_Rela *lo, *hi, *look;
645ea6a9 5939 bfd_vma val;
8387904d 5940
9f296da3
AM		 5941 /* No relocs implies we are linking a --just-symbols object, or looking
5942 at a final linked executable with addr2line or somesuch. */
4b85d634
AM		 5943 if (opd_sec->reloc_count == 0)
5944 {
729eabd5 5945 bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents;
3b36f7e6 5946
729eabd5
AM		 5947 if (contents == NULL)
5948 {
5949 if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents))
5950 return (bfd_vma) -1;
5951 ppc64_elf_tdata (opd_bfd)->opd.contents = contents;
5952 }
ee1e4ede 5953
dbb3fbbb 5954 /* PR 17512: file: 64b9dfbb. */
451dfd38 5955 if (offset + 7 >= opd_sec->size || offset + 7 < offset)
dbb3fbbb
NC		 5956 return (bfd_vma) -1;
5957
729eabd5 5958 val = bfd_get_64 (opd_bfd, contents + offset);
aef36ac1
AM		 5959 if (code_sec != NULL)
5960 {
5961 asection *sec, *likely = NULL;
ee1e4ede 5962
aef36ac1 5963 if (in_code_sec)
4b85d634 5964 {
aef36ac1
AM		 5965 sec = *code_sec;
5966 if (sec->vma <= val
5967 && val < sec->vma + sec->size)
5968 likely = sec;
5969 else
5970 val = -1;
5971 }
5972 else
5973 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
5974 if (sec->vma <= val
5975 && (sec->flags & SEC_LOAD) != 0
5976 && (sec->flags & SEC_ALLOC) != 0)
5977 likely = sec;
5978 if (likely != NULL)
5979 {
5980 *code_sec = likely;
5981 if (code_off != NULL)
5982 *code_off = val - likely->vma;
4b85d634
AM		 5983 }
5984 }
aef36ac1 5985 return val;
4b85d634
AM		 5986 }
5987
0c8d6e5c 5988 BFD_ASSERT (is_ppc64_elf (opd_bfd));
0ffa91dd 5989
729eabd5 5990 relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs;
8860955f
AM		 5991 if (relocs == NULL)
5992 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
877a8638
NC		 5993 /* PR 17512: file: df8e1fd6. */
5994 if (relocs == NULL)
5995 return (bfd_vma) -1;
645ea6a9 5996
8387904d 5997 /* Go find the opd reloc at the sym address. */
8860955f 5998 lo = relocs;
8387904d 5999 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
645ea6a9 6000 val = (bfd_vma) -1;
8387904d
AM		 6001 while (lo < hi)
6002 {
6003 look = lo + (hi - lo) / 2;
6004 if (look->r_offset < offset)
6005 lo = look + 1;
6006 else if (look->r_offset > offset)
6007 hi = look;
6008 else
6009 {
0ffa91dd
NC		 6010 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd);
6011
8387904d
AM		 6012 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
6013 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
6014 {
6015 unsigned long symndx = ELF64_R_SYM (look->r_info);
b53dfeb2 6016 asection *sec = NULL;
8387904d 6017
b53dfeb2
AM		 6018 if (symndx >= symtab_hdr->sh_info
6019 && elf_sym_hashes (opd_bfd) != NULL)
8387904d
AM		 6020 {
6021 struct elf_link_hash_entry **sym_hashes;
6022 struct elf_link_hash_entry *rh;
6023
6024 sym_hashes = elf_sym_hashes (opd_bfd);
6025 rh = sym_hashes[symndx - symtab_hdr->sh_info];
128205bb
AM		 6026 if (rh != NULL)
6027 {
6028 rh = elf_follow_link (rh);
6029 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
6030 || rh->root.type == bfd_link_hash_defweak);
6031 val = rh->root.u.def.value;
6032 sec = rh->root.u.def.section;
b53dfeb2
AM		 6033 if (sec->owner != opd_bfd)
6034 {
6035 sec = NULL;
6036 val = (bfd_vma) -1;
6037 }
6038 }
6039 }
6040
6041 if (sec == NULL)
6042 {
6043 Elf_Internal_Sym *sym;
6044
6045 if (symndx < symtab_hdr->sh_info)
6046 {
6047 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
6048 if (sym == NULL)
6049 {
6050 size_t symcnt = symtab_hdr->sh_info;
6051 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
6052 symcnt, 0,
6053 NULL, NULL, NULL);
6054 if (sym == NULL)
6055 break;
6056 symtab_hdr->contents = (bfd_byte *) sym;
6057 }
6058 sym += symndx;
128205bb
AM		 6059 }
6060 else
6061 {
b53dfeb2
AM		 6062 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
6063 1, symndx,
6064 NULL, NULL, NULL);
128205bb
AM		 6065 if (sym == NULL)
6066 break;
128205bb 6067 }
b53dfeb2
AM		 6068 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
6069 if (sec == NULL)
6070 break;
6071 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
6072 val = sym->st_value;
8387904d 6073 }
b53dfeb2 6074
8387904d
AM		 6075 val += look->r_addend;
6076 if (code_off != NULL)
6077 *code_off = val;
6078 if (code_sec != NULL)
aef36ac1
AM		 6079 {
6080 if (in_code_sec && *code_sec != sec)
6081 return -1;
6082 else
6083 *code_sec = sec;
6084 }
b53dfeb2 6085 if (sec->output_section != NULL)
8387904d 6086 val += sec->output_section->vma + sec->output_offset;
8387904d
AM		 6087 }
6088 break;
6089 }
6090 }
645ea6a9 6091
645ea6a9 6092 return val;
8387904d
AM		 6093}
6094
aef36ac1
AM		 6095/* If the ELF symbol SYM might be a function in SEC, return the
6096 function size and set *CODE_OFF to the function's entry point,
6097 otherwise return zero. */
9f296da3 6098
aef36ac1
AM		 6099static bfd_size_type
6100ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec,
6101 bfd_vma *code_off)
9f296da3 6102{
aef36ac1
AM		 6103 bfd_size_type size;
6104
6105 if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT
6106 | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0)
6107 return 0;
6108
6109 size = 0;
6110 if (!(sym->flags & BSF_SYNTHETIC))
6111 size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
6112
6113 if (strcmp (sym->section->name, ".opd") == 0)
9f296da3 6114 {
aef36ac1
AM		 6115 if (opd_entry_value (sym->section, sym->value,
6116 &sec, code_off, TRUE) == (bfd_vma) -1)
6117 return 0;
6118 /* An old ABI binary with dot-syms has a size of 24 on the .opd
6119 symbol. This size has nothing to do with the code size of the
6120 function, which is what we're supposed to return, but the
6121 code size isn't available without looking up the dot-sym.
6122 However, doing that would be a waste of time particularly
6123 since elf_find_function will look at the dot-sym anyway.
6124 Now, elf_find_function will keep the largest size of any
6125 function sym found at the code address of interest, so return
6126 1 here to avoid it incorrectly caching a larger function size
6127 for a small function. This does mean we return the wrong
6128 size for a new-ABI function of size 24, but all that does is
6129 disable caching for such functions. */
6130 if (size == 24)
6131 size = 1;
9f296da3 6132 }
aef36ac1
AM		 6133 else
6134 {
6135 if (sym->section != sec)
6136 return 0;
6137 *code_off = sym->value;
6138 }
6139 if (size == 0)
6140 size = 1;
6141 return size;
9f296da3
AM		 6142}
6143
854b41e7
AM		 6144/* Return true if symbol is defined in a regular object file. */
6145
6146static bfd_boolean
6147is_static_defined (struct elf_link_hash_entry *h)
6148{
6149 return ((h->root.type == bfd_link_hash_defined
6150 || h->root.type == bfd_link_hash_defweak)
6151 && h->root.u.def.section != NULL
6152 && h->root.u.def.section->output_section != NULL);
6153}
6154
b31867b6
AM		 6155/* If FDH is a function descriptor symbol, return the associated code
6156 entry symbol if it is defined. Return NULL otherwise. */
6157
6158static struct ppc_link_hash_entry *
6159defined_code_entry (struct ppc_link_hash_entry *fdh)
6160{
6161 if (fdh->is_func_descriptor)
6162 {
6163 struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh);
6164 if (fh->elf.root.type == bfd_link_hash_defined
6165 || fh->elf.root.type == bfd_link_hash_defweak)
6166 return fh;
6167 }
6168 return NULL;
6169}
6170
6171/* If FH is a function code entry symbol, return the associated
6172 function descriptor symbol if it is defined. Return NULL otherwise. */
6173
6174static struct ppc_link_hash_entry *
6175defined_func_desc (struct ppc_link_hash_entry *fh)
6176{
6177 if (fh->oh != NULL
6178 && fh->oh->is_func_descriptor)
6179 {
6180 struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh);
6181 if (fdh->elf.root.type == bfd_link_hash_defined
6182 || fdh->elf.root.type == bfd_link_hash_defweak)
6183 return fdh;
6184 }
6185 return NULL;
6186}
6187
74f0fb50
AM		 6188/* Mark all our entry sym sections, both opd and code section. */
6189
6190static void
6191ppc64_elf_gc_keep (struct bfd_link_info *info)
6192{
6193 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6194 struct bfd_sym_chain *sym;
6195
4dfe6ac6
NC		 6196 if (htab == NULL)
6197 return;
6198
74f0fb50
AM		 6199 for (sym = info->gc_sym_list; sym != NULL; sym = sym->next)
6200 {
b31867b6 6201 struct ppc_link_hash_entry *eh, *fh;
74f0fb50
AM		 6202 asection *sec;
6203
6204 eh = (struct ppc_link_hash_entry *)
b31867b6 6205 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE);
74f0fb50
AM		 6206 if (eh == NULL)
6207 continue;
6208 if (eh->elf.root.type != bfd_link_hash_defined
6209 && eh->elf.root.type != bfd_link_hash_defweak)
6210 continue;
6211
b31867b6
AM		 6212 fh = defined_code_entry (eh);
6213 if (fh != NULL)
74f0fb50 6214 {
b31867b6 6215 sec = fh->elf.root.u.def.section;
74f0fb50
AM		 6216 sec->flags |= SEC_KEEP;
6217 }
6218 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6219 && opd_entry_value (eh->elf.root.u.def.section,
6220 eh->elf.root.u.def.value,
aef36ac1 6221 &sec, NULL, FALSE) != (bfd_vma) -1)
74f0fb50
AM		 6222 sec->flags |= SEC_KEEP;
6223
6224 sec = eh->elf.root.u.def.section;
6225 sec->flags |= SEC_KEEP;
6226 }
6227}
6228
64d03ab5
AM		 6229/* Mark sections containing dynamically referenced symbols. When
6230 building shared libraries, we must assume that any visible symbol is
6231 referenced. */
6232
6233static bfd_boolean
6234ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
6235{
6236 struct bfd_link_info *info = (struct bfd_link_info *) inf;
6237 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
b31867b6 6238 struct ppc_link_hash_entry *fdh;
b407645f 6239 struct bfd_elf_dynamic_list *d = info->dynamic_list;
64d03ab5 6240
64d03ab5 6241 /* Dynamic linking info is on the func descriptor sym. */
b31867b6
AM		 6242 fdh = defined_func_desc (eh);
6243 if (fdh != NULL)
6244 eh = fdh;
64d03ab5
AM		 6245
6246 if ((eh->elf.root.type == bfd_link_hash_defined
6247 || eh->elf.root.type == bfd_link_hash_defweak)
6248 && (eh->elf.ref_dynamic
1c9177d9 6249 || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf))
64d03ab5 6250 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
4c58e0d8 6251 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN
b407645f
AM		 6252 && (!info->executable
6253 || info->export_dynamic
6254 || (eh->elf.dynamic
6255 && d != NULL
6256 && (*d->match) (&d->head, NULL, eh->elf.root.root.string)))
4c58e0d8
AM		 6257 && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL
6258 || !bfd_hide_sym_by_version (info->version_info,
6259 eh->elf.root.root.string)))))
64d03ab5
AM		 6260 {
6261 asection *code_sec;
b31867b6 6262 struct ppc_link_hash_entry *fh;
64d03ab5
AM		 6263
6264 eh->elf.root.u.def.section->flags |= SEC_KEEP;
6265
6266 /* Function descriptor syms cause the associated
6267 function code sym section to be marked. */
b31867b6
AM		 6268 fh = defined_code_entry (eh);
6269 if (fh != NULL)
6270 {
6271 code_sec = fh->elf.root.u.def.section;
6272 code_sec->flags |= SEC_KEEP;
6273 }
64d03ab5
AM		 6274 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6275 && opd_entry_value (eh->elf.root.u.def.section,
6276 eh->elf.root.u.def.value,
aef36ac1 6277 &code_sec, NULL, FALSE) != (bfd_vma) -1)
64d03ab5
AM		 6278 code_sec->flags |= SEC_KEEP;
6279 }
6280
6281 return TRUE;
6282}
6283
5bd4f169
AM		 6284/* Return the section that should be marked against GC for a given
6285 relocation. */
6286
6287static asection *
4ce794b7 6288ppc64_elf_gc_mark_hook (asection *sec,
fb34365b 6289 struct bfd_link_info *info,
4ce794b7
AM		 6290 Elf_Internal_Rela *rel,
6291 struct elf_link_hash_entry *h,
6292 Elf_Internal_Sym *sym)
5bd4f169 6293{
ccfa59ea
AM		 6294 asection *rsec;
6295
ccfa59ea
AM		 6296 /* Syms return NULL if we're marking .opd, so we avoid marking all
6297 function sections, as all functions are referenced in .opd. */
6298 rsec = NULL;
6299 if (get_opd_info (sec) != NULL)
6300 return rsec;
1e2f5b6e 6301
5bd4f169
AM		 6302 if (h != NULL)
6303 {
04c9666a 6304 enum elf_ppc64_reloc_type r_type;
b31867b6 6305 struct ppc_link_hash_entry *eh, *fh, *fdh;
a33d1f77 6306
4ce794b7 6307 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 6308 switch (r_type)
5bd4f169
AM		 6309 {
6310 case R_PPC64_GNU_VTINHERIT:
6311 case R_PPC64_GNU_VTENTRY:
6312 break;
6313
6314 default:
6315 switch (h->root.type)
6316 {
6317 case bfd_link_hash_defined:
6318 case bfd_link_hash_defweak:
ccfa59ea 6319 eh = (struct ppc_link_hash_entry *) h;
b31867b6
AM		 6320 fdh = defined_func_desc (eh);
6321 if (fdh != NULL)
6322 eh = fdh;
1e2f5b6e
AM		 6323
6324 /* Function descriptor syms cause the associated
6325 function code sym section to be marked. */
b31867b6
AM		 6326 fh = defined_code_entry (eh);
6327 if (fh != NULL)
ccfa59ea
AM		 6328 {
6329 /* They also mark their opd section. */
74f0fb50 6330 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 6331
b31867b6 6332 rsec = fh->elf.root.u.def.section;
ccfa59ea 6333 }
8387904d
AM		 6334 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
6335 && opd_entry_value (eh->elf.root.u.def.section,
6336 eh->elf.root.u.def.value,
aef36ac1 6337 &rsec, NULL, FALSE) != (bfd_vma) -1)
74f0fb50 6338 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 6339 else
1e2f5b6e
AM		 6340 rsec = h->root.u.def.section;
6341 break;
5bd4f169
AM		 6342
6343 case bfd_link_hash_common:
1e2f5b6e
AM		 6344 rsec = h->root.u.c.p->section;
6345 break;
5bd4f169
AM		 6346
6347 default:
fb34365b 6348 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5bd4f169
AM		 6349 }
6350 }
6351 }
6352 else
6353 {
74f0fb50 6354 struct _opd_sec_data *opd;
1e2f5b6e
AM		 6355
6356 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
74f0fb50
AM		 6357 opd = get_opd_info (rsec);
6358 if (opd != NULL && opd->func_sec != NULL)
ccfa59ea 6359 {
74f0fb50 6360 rsec->gc_mark = 1;
ccfa59ea 6361
51aecdc5 6362 rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)];
ccfa59ea 6363 }
5bd4f169
AM		 6364 }
6365
1e2f5b6e 6366 return rsec;
5bd4f169
AM		 6367}
6368
65f38f15
AM		 6369/* Update the .got, .plt. and dynamic reloc reference counts for the
6370 section being removed. */
5bd4f169 6371
b34976b6 6372static bfd_boolean
4ce794b7
AM		 6373ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
6374 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 6375{
411e1bfb 6376 struct ppc_link_hash_table *htab;
5bd4f169
AM		 6377 Elf_Internal_Shdr *symtab_hdr;
6378 struct elf_link_hash_entry **sym_hashes;
411e1bfb 6379 struct got_entry **local_got_ents;
5bd4f169 6380 const Elf_Internal_Rela *rel, *relend;
5bd4f169 6381
7dda2462
TG		 6382 if (info->relocatable)
6383 return TRUE;
6384
680a3378
AM		 6385 if ((sec->flags & SEC_ALLOC) == 0)
6386 return TRUE;
6387
ec338859
AM		 6388 elf_section_data (sec)->local_dynrel = NULL;
6389
411e1bfb 6390 htab = ppc_hash_table (info);
4dfe6ac6
NC		 6391 if (htab == NULL)
6392 return FALSE;
6393
0ffa91dd 6394 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169 6395 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 6396 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 6397
6398 relend = relocs + sec->reloc_count;
6399 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 6400 {
6401 unsigned long r_symndx;
04c9666a 6402 enum elf_ppc64_reloc_type r_type;
58ac9f71 6403 struct elf_link_hash_entry *h = NULL;
f961d9dd 6404 unsigned char tls_type = 0;
5bd4f169 6405
a33d1f77 6406 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 6407 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 6408 if (r_symndx >= symtab_hdr->sh_info)
6409 {
6410 struct ppc_link_hash_entry *eh;
6061a67d
AM		 6411 struct elf_dyn_relocs **pp;
6412 struct elf_dyn_relocs *p;
58ac9f71
AM		 6413
6414 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 6415 h = elf_follow_link (h);
58ac9f71
AM		 6416 eh = (struct ppc_link_hash_entry *) h;
6417
6418 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
6419 if (p->sec == sec)
6420 {
6421 /* Everything must go for SEC. */
6422 *pp = p->next;
6423 break;
6424 }
6425 }
6426
e054468f
AM		 6427 if (is_branch_reloc (r_type))
6428 {
6429 struct plt_entry **ifunc = NULL;
6430 if (h != NULL)
6431 {
6432 if (h->type == STT_GNU_IFUNC)
6433 ifunc = &h->plt.plist;
6434 }
6435 else if (local_got_ents != NULL)
6436 {
6437 struct plt_entry **local_plt = (struct plt_entry **)
6438 (local_got_ents + symtab_hdr->sh_info);
f961d9dd 6439 unsigned char *local_got_tls_masks = (unsigned char *)
e054468f
AM		 6440 (local_plt + symtab_hdr->sh_info);
6441 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
6442 ifunc = local_plt + r_symndx;
6443 }
6444 if (ifunc != NULL)
6445 {
6446 struct plt_entry *ent;
6447
6448 for (ent = *ifunc; ent != NULL; ent = ent->next)
6449 if (ent->addend == rel->r_addend)
6450 break;
6451 if (ent == NULL)
6452 abort ();
6453 if (ent->plt.refcount > 0)
6454 ent->plt.refcount -= 1;
6455 continue;
6456 }
6457 }
6458
a33d1f77
AM		 6459 switch (r_type)
6460 {
411e1bfb
AM		 6461 case R_PPC64_GOT_TLSLD16:
6462 case R_PPC64_GOT_TLSLD16_LO:
6463 case R_PPC64_GOT_TLSLD16_HI:
6464 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 6465 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 6466 goto dogot;
6467
6468 case R_PPC64_GOT_TLSGD16:
6469 case R_PPC64_GOT_TLSGD16_LO:
6470 case R_PPC64_GOT_TLSGD16_HI:
6471 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 6472 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 6473 goto dogot;
6474
6475 case R_PPC64_GOT_TPREL16_DS:
6476 case R_PPC64_GOT_TPREL16_LO_DS:
6477 case R_PPC64_GOT_TPREL16_HI:
6478 case R_PPC64_GOT_TPREL16_HA:
6479 tls_type = TLS_TLS | TLS_TPREL;
6480 goto dogot;
6481
6482 case R_PPC64_GOT_DTPREL16_DS:
6483 case R_PPC64_GOT_DTPREL16_LO_DS:
6484 case R_PPC64_GOT_DTPREL16_HI:
6485 case R_PPC64_GOT_DTPREL16_HA:
6486 tls_type = TLS_TLS | TLS_DTPREL;
6487 goto dogot;
6488
a33d1f77
AM		 6489 case R_PPC64_GOT16:
6490 case R_PPC64_GOT16_DS:
6491 case R_PPC64_GOT16_HA:
6492 case R_PPC64_GOT16_HI:
6493 case R_PPC64_GOT16_LO:
6494 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 6495 dogot:
6496 {
6497 struct got_entry *ent;
6498
58ac9f71
AM		 6499 if (h != NULL)
6500 ent = h->got.glist;
411e1bfb
AM		 6501 else
6502 ent = local_got_ents[r_symndx];
6503
6504 for (; ent != NULL; ent = ent->next)
6505 if (ent->addend == rel->r_addend
e717da7e 6506 && ent->owner == abfd
411e1bfb
AM		 6507 && ent->tls_type == tls_type)
6508 break;
6509 if (ent == NULL)
6510 abort ();
6511 if (ent->got.refcount > 0)
6512 ent->got.refcount -= 1;
6513 }
a33d1f77 6514 break;
65f38f15 6515
a33d1f77
AM		 6516 case R_PPC64_PLT16_HA:
6517 case R_PPC64_PLT16_HI:
6518 case R_PPC64_PLT16_LO:
6519 case R_PPC64_PLT32:
6520 case R_PPC64_PLT64:
721956f4
AM		 6521 case R_PPC64_REL14:
6522 case R_PPC64_REL14_BRNTAKEN:
6523 case R_PPC64_REL14_BRTAKEN:
5d1634d7 6524 case R_PPC64_REL24:
58ac9f71 6525 if (h != NULL)
5d1634d7 6526 {
411e1bfb
AM		 6527 struct plt_entry *ent;
6528
411e1bfb
AM		 6529 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6530 if (ent->addend == rel->r_addend)
6531 break;
7c6c1722 6532 if (ent != NULL && ent->plt.refcount > 0)
411e1bfb 6533 ent->plt.refcount -= 1;
5d1634d7 6534 }
e86ce104 6535 break;
5d1634d7 6536
a33d1f77
AM		 6537 default:
6538 break;
6539 }
6540 }
b34976b6 6541 return TRUE;
5bd4f169
AM		 6542}
6543
deb0e272
AM		 6544/* The maximum size of .sfpr. */
6545#define SFPR_MAX (218*4)
6546
6547struct sfpr_def_parms
6548{
699733f6
AM		 6549 const char name[12];
6550 unsigned char lo, hi;
deb0e272
AM		 6551 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
6552 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
6553};
6554
6555/* Auto-generate _save*, _rest* functions in .sfpr. */
6556
4dfe6ac6 6557static bfd_boolean
deb0e272
AM		 6558sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
6559{
6560 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6561 unsigned int i;
6562 size_t len = strlen (parm->name);
6563 bfd_boolean writing = FALSE;
699733f6 6564 char sym[16];
deb0e272 6565
4dfe6ac6
NC		 6566 if (htab == NULL)
6567 return FALSE;
6568
deb0e272
AM		 6569 memcpy (sym, parm->name, len);
6570 sym[len + 2] = 0;
6571
6572 for (i = parm->lo; i <= parm->hi; i++)
6573 {
6574 struct elf_link_hash_entry *h;
6575
6576 sym[len + 0] = i / 10 + '0';
6577 sym[len + 1] = i % 10 + '0';
6578 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
6579 if (h != NULL
f5385ebf 6580 && !h->def_regular)
deb0e272
AM		 6581 {
6582 h->root.type = bfd_link_hash_defined;
6583 h->root.u.def.section = htab->sfpr;
6584 h->root.u.def.value = htab->sfpr->size;
6585 h->type = STT_FUNC;
f5385ebf 6586 h->def_regular = 1;
deb0e272
AM		 6587 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
6588 writing = TRUE;
6589 if (htab->sfpr->contents == NULL)
6590 {
6591 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
6592 if (htab->sfpr->contents == NULL)
6593 return FALSE;
6594 }
6595 }
6596 if (writing)
6597 {
6598 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
6599 if (i != parm->hi)
6600 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
6601 else
6602 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
6603 htab->sfpr->size = p - htab->sfpr->contents;
6604 }
6605 }
6606
6607 return TRUE;
6608}
6609
6610static bfd_byte *
6611savegpr0 (bfd *abfd, bfd_byte *p, int r)
6612{
6613 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6614 return p + 4;
6615}
6616
6617static bfd_byte *
6618savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
6619{
6620 p = savegpr0 (abfd, p, r);
a078d95a 6621 bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6622 p = p + 4;
6623 bfd_put_32 (abfd, BLR, p);
6624 return p + 4;
6625}
6626
6627static bfd_byte *
6628restgpr0 (bfd *abfd, bfd_byte *p, int r)
6629{
6630 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6631 return p + 4;
6632}
6633
6634static bfd_byte *
6635restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
6636{
a078d95a 6637 bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6638 p = p + 4;
6639 p = restgpr0 (abfd, p, r);
6640 bfd_put_32 (abfd, MTLR_R0, p);
6641 p = p + 4;
6642 if (r == 29)
6643 {
6644 p = restgpr0 (abfd, p, 30);
6645 p = restgpr0 (abfd, p, 31);
6646 }
6647 bfd_put_32 (abfd, BLR, p);
6648 return p + 4;
6649}
6650
6651static bfd_byte *
6652savegpr1 (bfd *abfd, bfd_byte *p, int r)
6653{
6654 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6655 return p + 4;
6656}
6657
6658static bfd_byte *
6659savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
6660{
6661 p = savegpr1 (abfd, p, r);
6662 bfd_put_32 (abfd, BLR, p);
6663 return p + 4;
6664}
6665
6666static bfd_byte *
6667restgpr1 (bfd *abfd, bfd_byte *p, int r)
6668{
6669 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6670 return p + 4;
6671}
6672
6673static bfd_byte *
6674restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
6675{
6676 p = restgpr1 (abfd, p, r);
6677 bfd_put_32 (abfd, BLR, p);
6678 return p + 4;
6679}
6680
6681static bfd_byte *
6682savefpr (bfd *abfd, bfd_byte *p, int r)
6683{
6684 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6685 return p + 4;
6686}
6687
6688static bfd_byte *
6689savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
6690{
6691 p = savefpr (abfd, p, r);
a078d95a 6692 bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6693 p = p + 4;
6694 bfd_put_32 (abfd, BLR, p);
6695 return p + 4;
6696}
6697
6698static bfd_byte *
6699restfpr (bfd *abfd, bfd_byte *p, int r)
6700{
6701 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6702 return p + 4;
6703}
6704
6705static bfd_byte *
6706restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
6707{
a078d95a 6708 bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
deb0e272
AM		 6709 p = p + 4;
6710 p = restfpr (abfd, p, r);
6711 bfd_put_32 (abfd, MTLR_R0, p);
6712 p = p + 4;
6713 if (r == 29)
6714 {
6715 p = restfpr (abfd, p, 30);
6716 p = restfpr (abfd, p, 31);
6717 }
6718 bfd_put_32 (abfd, BLR, p);
6719 return p + 4;
6720}
6721
6722static bfd_byte *
6723savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
6724{
6725 p = savefpr (abfd, p, r);
6726 bfd_put_32 (abfd, BLR, p);
6727 return p + 4;
6728}
6729
6730static bfd_byte *
6731restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
6732{
6733 p = restfpr (abfd, p, r);
6734 bfd_put_32 (abfd, BLR, p);
6735 return p + 4;
6736}
6737
6738static bfd_byte *
6739savevr (bfd *abfd, bfd_byte *p, int r)
6740{
6741 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6742 p = p + 4;
6743 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
6744 return p + 4;
6745}
6746
6747static bfd_byte *
6748savevr_tail (bfd *abfd, bfd_byte *p, int r)
6749{
6750 p = savevr (abfd, p, r);
6751 bfd_put_32 (abfd, BLR, p);
6752 return p + 4;
6753}
6754
6755static bfd_byte *
6756restvr (bfd *abfd, bfd_byte *p, int r)
6757{
6758 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6759 p = p + 4;
6760 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
6761 return p + 4;
6762}
6763
6764static bfd_byte *
6765restvr_tail (bfd *abfd, bfd_byte *p, int r)
6766{
6767 p = restvr (abfd, p, r);
6768 bfd_put_32 (abfd, BLR, p);
6769 return p + 4;
6770}
6771
e86ce104
AM		 6772/* Called via elf_link_hash_traverse to transfer dynamic linking
6773 information on function code symbol entries to their corresponding
6774 function descriptor symbol entries. */
deb0e272 6775
b34976b6 6776static bfd_boolean
4ce794b7 6777func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 6778{
e86ce104 6779 struct bfd_link_info *info;
65f38f15 6780 struct ppc_link_hash_table *htab;
411e1bfb 6781 struct plt_entry *ent;
50bc7936
AM		 6782 struct ppc_link_hash_entry *fh;
6783 struct ppc_link_hash_entry *fdh;
6784 bfd_boolean force_local;
5bd4f169 6785
50bc7936
AM		 6786 fh = (struct ppc_link_hash_entry *) h;
6787 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 6788 return TRUE;
e86ce104 6789
4ce794b7 6790 info = inf;
65f38f15 6791 htab = ppc_hash_table (info);
4dfe6ac6
NC		 6792 if (htab == NULL)
6793 return FALSE;
5bd4f169 6794
c09bdfe5
AM		 6795 /* Resolve undefined references to dot-symbols as the value
6796 in the function descriptor, if we have one in a regular object.
6797 This is to satisfy cases like ".quad .foo". Calls to functions
6798 in dynamic objects are handled elsewhere. */
6799 if (fh->elf.root.type == bfd_link_hash_undefweak
6800 && fh->was_undefined
b31867b6
AM		 6801 && (fdh = defined_func_desc (fh)) != NULL
6802 && get_opd_info (fdh->elf.root.u.def.section) != NULL
6803 && opd_entry_value (fdh->elf.root.u.def.section,
6804 fdh->elf.root.u.def.value,
c09bdfe5 6805 &fh->elf.root.u.def.section,
aef36ac1 6806 &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1)
c09bdfe5 6807 {
b31867b6 6808 fh->elf.root.type = fdh->elf.root.type;
f5385ebf 6809 fh->elf.forced_local = 1;
b31867b6
AM		 6810 fh->elf.def_regular = fdh->elf.def_regular;
6811 fh->elf.def_dynamic = fdh->elf.def_dynamic;
c09bdfe5
AM		 6812 }
6813
e86ce104
AM		 6814 /* If this is a function code symbol, transfer dynamic linking
6815 information to the function descriptor symbol. */
50bc7936 6816 if (!fh->is_func)
b34976b6 6817 return TRUE;
e86ce104 6818
50bc7936 6819 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 6820 if (ent->plt.refcount > 0)
6821 break;
50bc7936
AM		 6822 if (ent == NULL
6823 || fh->elf.root.root.string[0] != '.'
6824 || fh->elf.root.root.string[1] == '\0')
6825 return TRUE;
5bd4f169 6826
50bc7936
AM		 6827 /* Find the corresponding function descriptor symbol. Create it
6828 as undefined if necessary. */
5bd4f169 6829
b31867b6 6830 fdh = lookup_fdh (fh, htab);
50bc7936 6831 if (fdh == NULL
df131623 6832 && !info->executable
50bc7936
AM		 6833 && (fh->elf.root.type == bfd_link_hash_undefined
6834 || fh->elf.root.type == bfd_link_hash_undefweak))
6835 {
908b32fc 6836 fdh = make_fdh (info, fh);
bb700d78
AM		 6837 if (fdh == NULL)
6838 return FALSE;
50bc7936 6839 }
648cca2c 6840
908b32fc 6841 /* Fake function descriptors are made undefweak. If the function
433817dd
AM		 6842 code symbol is strong undefined, make the fake sym the same.
6843 If the function code symbol is defined, then force the fake
6844 descriptor local; We can't support overriding of symbols in a
6845 shared library on a fake descriptor. */
908b32fc
AM		 6846
6847 if (fdh != NULL
6848 && fdh->fake
433817dd 6849 && fdh->elf.root.type == bfd_link_hash_undefweak)
908b32fc 6850 {
433817dd
AM		 6851 if (fh->elf.root.type == bfd_link_hash_undefined)
6852 {
6853 fdh->elf.root.type = bfd_link_hash_undefined;
6854 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
6855 }
6856 else if (fh->elf.root.type == bfd_link_hash_defined
6857 || fh->elf.root.type == bfd_link_hash_defweak)
6858 {
6859 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
6860 }
908b32fc
AM		 6861 }
6862
50bc7936 6863 if (fdh != NULL
f5385ebf 6864 && !fdh->elf.forced_local
df131623 6865 && (!info->executable
f5385ebf
AM		 6866 || fdh->elf.def_dynamic
6867 || fdh->elf.ref_dynamic
50bc7936
AM		 6868 || (fdh->elf.root.type == bfd_link_hash_undefweak
6869 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
6870 {
6871 if (fdh->elf.dynindx == -1)
c152c796 6872 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936 6873 return FALSE;
f5385ebf
AM		 6874 fdh->elf.ref_regular |= fh->elf.ref_regular;
6875 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
6876 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
6877 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
50bc7936 6878 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 6879 {
40d16e0b 6880 move_plt_plist (fh, fdh);
f5385ebf 6881 fdh->elf.needs_plt = 1;
e86ce104 6882 }
50bc7936 6883 fdh->is_func_descriptor = 1;
34814b9f
AM		 6884 fdh->oh = fh;
6885 fh->oh = fdh;
e86ce104
AM		 6886 }
6887
50bc7936
AM		 6888 /* Now that the info is on the function descriptor, clear the
6889 function code sym info. Any function code syms for which we
6890 don't have a definition in a regular file, we force local.
6891 This prevents a shared library from exporting syms that have
6892 been imported from another library. Function code syms that
6893 are really in the library we must leave global to prevent the
6894 linker dragging in a definition from a static library. */
93f3fa99
AM		 6895 force_local = (!fh->elf.def_regular
6896 || fdh == NULL
6897 || !fdh->elf.def_regular
6898 || fdh->elf.forced_local);
50bc7936
AM		 6899 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
6900
b34976b6 6901 return TRUE;
e86ce104 6902}
40b8271b 6903
e86ce104 6904/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 6905 this hook to a) provide some gcc support functions, and b) transfer
6906 dynamic linking information gathered so far on function code symbol
6907 entries, to their corresponding function descriptor symbol entries. */
deb0e272 6908
b34976b6 6909static bfd_boolean
4ce794b7
AM		 6910ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
6911 struct bfd_link_info *info)
e86ce104
AM		 6912{
6913 struct ppc_link_hash_table *htab;
82bd7b59 6914 unsigned int i;
27fc25a1 6915 static const struct sfpr_def_parms funcs[] =
deb0e272
AM		 6916 {
6917 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
6918 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
6919 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
6920 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
6921 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
6922 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
6923 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
6924 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
6925 { "._savef", 14, 31, savefpr, savefpr1_tail },
6926 { "._restf", 14, 31, restfpr, restfpr1_tail },
6927 { "_savevr_", 20, 31, savevr, savevr_tail },
6928 { "_restvr_", 20, 31, restvr, restvr_tail }
6929 };
e86ce104
AM		 6930
6931 htab = ppc_hash_table (info);
4dfe6ac6
NC		 6932 if (htab == NULL)
6933 return FALSE;
6934
5295321c
AM		 6935 if (!info->relocatable
6936 && htab->elf.hgot != NULL)
dba6fa9b
AM		 6937 {
6938 _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE);
6939 /* Make .TOC. defined so as to prevent it being made dynamic.
6940 The wrong value here is fixed later in ppc64_elf_set_toc. */
6941 htab->elf.hgot->type = STT_OBJECT;
6942 htab->elf.hgot->root.type = bfd_link_hash_defined;
6943 htab->elf.hgot->root.u.def.value = 0;
6944 htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr;
6945 htab->elf.hgot->def_regular = 1;
6946 htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1))
6947 | STV_HIDDEN);
6948 }
c66bb0ee 6949
82bd7b59
AM		 6950 if (htab->sfpr == NULL)
6951 /* We don't have any relocs. */
b34976b6 6952 return TRUE;
82bd7b59 6953
deb0e272
AM		 6954 /* Provide any missing _save* and _rest* functions. */
6955 htab->sfpr->size = 0;
7d4c687d 6956 if (htab->params->save_restore_funcs)
27fc25a1
AM		 6957 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
6958 if (!sfpr_define (info, &funcs[i]))
6959 return FALSE;
82bd7b59 6960
4ce794b7 6961 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 6962
eea6121a 6963 if (htab->sfpr->size == 0)
8423293d 6964 htab->sfpr->flags |= SEC_EXCLUDE;
82bd7b59 6965
b34976b6 6966 return TRUE;
e86ce104
AM		 6967}
6968
a345bc8d
AM		 6969/* Return true if we have dynamic relocs that apply to read-only sections. */
6970
6971static bfd_boolean
6972readonly_dynrelocs (struct elf_link_hash_entry *h)
6973{
6974 struct ppc_link_hash_entry *eh;
6975 struct elf_dyn_relocs *p;
6976
6977 eh = (struct ppc_link_hash_entry *) h;
6978 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6979 {
6980 asection *s = p->sec->output_section;
6981
6982 if (s != NULL && (s->flags & SEC_READONLY) != 0)
6983 return TRUE;
6984 }
6985 return FALSE;
6986}
6987
e86ce104
AM		 6988/* Adjust a symbol defined by a dynamic object and referenced by a
6989 regular object. The current definition is in some section of the
6990 dynamic object, but we're not including those sections. We have to
6991 change the definition to something the rest of the link can
6992 understand. */
6993
b34976b6 6994static bfd_boolean
4ce794b7
AM		 6995ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
6996 struct elf_link_hash_entry *h)
e86ce104
AM		 6997{
6998 struct ppc_link_hash_table *htab;
e86ce104 6999 asection *s;
e86ce104
AM		 7000
7001 htab = ppc_hash_table (info);
4dfe6ac6
NC		 7002 if (htab == NULL)
7003 return FALSE;
e86ce104
AM		 7004
7005 /* Deal with function syms. */
7006 if (h->type == STT_FUNC
e054468f 7007 || h->type == STT_GNU_IFUNC
f5385ebf 7008 || h->needs_plt)
e86ce104
AM		 7009 {
7010 /* Clear procedure linkage table information for any symbol that
7011 won't need a .plt entry. */
411e1bfb
AM		 7012 struct plt_entry *ent;
7013 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
7014 if (ent->plt.refcount > 0)
7015 break;
8387904d 7016 if (ent == NULL
e054468f
AM		 7017 || (h->type != STT_GNU_IFUNC
7018 && (SYMBOL_CALLS_LOCAL (info, h)
7019 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
7020 && h->root.type == bfd_link_hash_undefweak))))
40b8271b 7021 {
411e1bfb 7022 h->plt.plist = NULL;
f5385ebf 7023 h->needs_plt = 0;
d1eca1e4 7024 h->pointer_equality_needed = 0;
40b8271b 7025 }
a345bc8d
AM		 7026 else if (abiversion (info->output_bfd) == 2)
7027 {
d1eca1e4
AM		 7028 /* Taking a function's address in a read/write section
7029 doesn't require us to define the function symbol in the
7030 executable on a global entry stub. A dynamic reloc can
7031 be used instead. */
7032 if (h->pointer_equality_needed
1009ef28 7033 && h->type != STT_GNU_IFUNC
d1eca1e4
AM		 7034 && !readonly_dynrelocs (h))
7035 {
7036 h->pointer_equality_needed = 0;
7037 h->non_got_ref = 0;
7038 }
7039
a345bc8d
AM		 7040 /* After adjust_dynamic_symbol, non_got_ref set in the
7041 non-shared case means that we have allocated space in
7042 .dynbss for the symbol and thus dyn_relocs for this
7043 symbol should be discarded.
7044 If we get here we know we are making a PLT entry for this
7045 symbol, and in an executable we'd normally resolve
7046 relocations against this symbol to the PLT entry. Allow
7047 dynamic relocs if the reference is weak, and the dynamic
7048 relocs will not cause text relocation. */
d1eca1e4
AM		 7049 else if (!h->ref_regular_nonweak
7050 && h->non_got_ref
7051 && h->type != STT_GNU_IFUNC
7052 && !readonly_dynrelocs (h))
a345bc8d
AM		 7053 h->non_got_ref = 0;
7054
7055 /* If making a plt entry, then we don't need copy relocs. */
7056 return TRUE;
7057 }
5bd4f169 7058 }
bbd7ec4a 7059 else
411e1bfb 7060 h->plt.plist = NULL;
5bd4f169
AM		 7061
7062 /* If this is a weak symbol, and there is a real definition, the
7063 processor independent code will have arranged for us to see the
7064 real definition first, and we can just use the same value. */
f6e332e6 7065 if (h->u.weakdef != NULL)
5bd4f169 7066 {
f6e332e6
AM		 7067 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
7068 || h->u.weakdef->root.type == bfd_link_hash_defweak);
7069 h->root.u.def.section = h->u.weakdef->root.u.def.section;
7070 h->root.u.def.value = h->u.weakdef->root.u.def.value;
a23b6845 7071 if (ELIMINATE_COPY_RELOCS)
f6e332e6 7072 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 7073 return TRUE;
5bd4f169
AM		 7074 }
7075
5bd4f169
AM		 7076 /* If we are creating a shared library, we must presume that the
7077 only references to the symbol are via the global offset table.
7078 For such cases we need not do anything here; the relocations will
7079 be handled correctly by relocate_section. */
7080 if (info->shared)
b34976b6 7081 return TRUE;
5bd4f169 7082
65f38f15
AM		 7083 /* If there are no references to this symbol that do not use the
7084 GOT, we don't need to generate a copy reloc. */
f5385ebf 7085 if (!h->non_got_ref)
b34976b6 7086 return TRUE;
65f38f15 7087
b186458a
JJ		 7088 /* Don't generate a copy reloc for symbols defined in the executable. */
7089 if (!h->def_dynamic || !h->ref_regular || h->def_regular)
7090 return TRUE;
7091
a127494f
AM		 7092 /* If -z nocopyreloc was given, don't generate them either. */
7093 if (info->nocopyreloc)
7094 {
7095 h->non_got_ref = 0;
7096 return TRUE;
7097 }
7098
a345bc8d
AM		 7099 /* If we didn't find any dynamic relocs in read-only sections, then
7100 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
7101 if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h))
65f38f15 7102 {
a345bc8d
AM		 7103 h->non_got_ref = 0;
7104 return TRUE;
65f38f15
AM		 7105 }
7106
a127494f
AM		 7107 /* Protected variables do not work with .dynbss. The copy in
7108 .dynbss won't be used by the shared library with the protected
7109 definition for the variable. Text relocations are preferable
7110 to an incorrect program. */
7111 if (h->protected_def)
7112 {
7113 h->non_got_ref = 0;
7114 return TRUE;
7115 }
7116
5d35169e 7117 if (h->plt.plist != NULL)
97b639ba
AM		 7118 {
7119 /* We should never get here, but unfortunately there are versions
7120 of gcc out there that improperly (for this ABI) put initialized
7121 function pointers, vtable refs and suchlike in read-only
7122 sections. Allow them to proceed, but warn that this might
7123 break at runtime. */
25f53a85 7124 info->callbacks->einfo
bc30df16 7125 (_("%P: copy reloc against `%T' requires lazy plt linking; "
25f53a85 7126 "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"),
97b639ba
AM		 7127 h->root.root.string);
7128 }
5d35169e
AM		 7129
7130 /* This is a reference to a symbol defined by a dynamic object which
7131 is not a function. */
7132
5bd4f169
AM		 7133 /* We must allocate the symbol in our .dynbss section, which will
7134 become part of the .bss section of the executable. There will be
7135 an entry for this symbol in the .dynsym section. The dynamic
7136 object will contain position independent code, so all references
7137 from the dynamic object to this symbol will go through the global
7138 offset table. The dynamic linker will use the .dynsym entry to
7139 determine the address it must put in the global offset table, so
7140 both the dynamic object and the regular object will refer to the
7141 same memory location for the variable. */
5bd4f169 7142
04c9666a
AM		 7143 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
7144 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 7145 runtime process image. We need to remember the offset into the
7146 .rela.bss section we are going to use. */
1d7e9d18 7147 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
5bd4f169 7148 {
eea6121a 7149 htab->relbss->size += sizeof (Elf64_External_Rela);
f5385ebf 7150 h->needs_copy = 1;
5bd4f169
AM		 7151 }
7152
4ce794b7 7153 s = htab->dynbss;
5bd4f169 7154
6cabe1ea 7155 return _bfd_elf_adjust_dynamic_copy (info, h, s);
5bd4f169
AM		 7156}
7157
e86ce104
AM		 7158/* If given a function descriptor symbol, hide both the function code
7159 sym and the descriptor. */
7160static void
4ce794b7
AM		 7161ppc64_elf_hide_symbol (struct bfd_link_info *info,
7162 struct elf_link_hash_entry *h,
7163 bfd_boolean force_local)
e86ce104 7164{
34814b9f 7165 struct ppc_link_hash_entry *eh;
e86ce104
AM		 7166 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
7167
34814b9f
AM		 7168 eh = (struct ppc_link_hash_entry *) h;
7169 if (eh->is_func_descriptor)
e86ce104 7170 {
34814b9f 7171 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 7172
721956f4 7173 if (fh == NULL)
d1329ca3
AM		 7174 {
7175 const char *p, *q;
7176 struct ppc_link_hash_table *htab;
7177 char save;
7178
7179 /* We aren't supposed to use alloca in BFD because on
7180 systems which do not have alloca the version in libiberty
7181 calls xmalloc, which might cause the program to crash
7182 when it runs out of memory. This function doesn't have a
7183 return status, so there's no way to gracefully return an
7184 error. So cheat. We know that string[-1] can be safely
34814b9f
AM		 7185 accessed; It's either a string in an ELF string table,
7186 or allocated in an objalloc structure. */
d1329ca3 7187
34814b9f 7188 p = eh->elf.root.root.string - 1;
d1329ca3
AM		 7189 save = *p;
7190 *(char *) p = '.';
7191 htab = ppc_hash_table (info);
4dfe6ac6
NC		 7192 if (htab == NULL)
7193 return;
7194
34814b9f
AM		 7195 fh = (struct ppc_link_hash_entry *)
7196 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 7197 *(char *) p = save;
7198
7199 /* Unfortunately, if it so happens that the string we were
7200 looking for was allocated immediately before this string,
7201 then we overwrote the string terminator. That's the only
7202 reason the lookup should fail. */
7203 if (fh == NULL)
7204 {
34814b9f
AM		 7205 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
7206 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 7207 --q, --p;
34814b9f
AM		 7208 if (q < eh->elf.root.root.string && *p == '.')
7209 fh = (struct ppc_link_hash_entry *)
7210 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 7211 }
7212 if (fh != NULL)
7213 {
34814b9f
AM		 7214 eh->oh = fh;
7215 fh->oh = eh;
d1329ca3
AM		 7216 }
7217 }
e86ce104 7218 if (fh != NULL)
34814b9f 7219 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM		 7220 }
7221}
7222
411e1bfb 7223static bfd_boolean
8843416a
AM		 7224get_sym_h (struct elf_link_hash_entry **hp,
7225 Elf_Internal_Sym **symp,
7226 asection **symsecp,
f961d9dd 7227 unsigned char **tls_maskp,
8843416a
AM		 7228 Elf_Internal_Sym **locsymsp,
7229 unsigned long r_symndx,
7230 bfd *ibfd)
411e1bfb 7231{
0ffa91dd 7232 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
411e1bfb
AM		 7233
7234 if (r_symndx >= symtab_hdr->sh_info)
7235 {
7236 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
7237 struct elf_link_hash_entry *h;
7238
7239 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 7240 h = elf_follow_link (h);
411e1bfb
AM		 7241
7242 if (hp != NULL)
7243 *hp = h;
7244
7245 if (symp != NULL)
7246 *symp = NULL;
7247
7248 if (symsecp != NULL)
7249 {
7250 asection *symsec = NULL;
7251 if (h->root.type == bfd_link_hash_defined
7252 || h->root.type == bfd_link_hash_defweak)
7253 symsec = h->root.u.def.section;
7254 *symsecp = symsec;
7255 }
7256
e7b938ca 7257 if (tls_maskp != NULL)
411e1bfb
AM		 7258 {
7259 struct ppc_link_hash_entry *eh;
7260
7261 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 7262 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 7263 }
7264 }
7265 else
7266 {
7267 Elf_Internal_Sym *sym;
7268 Elf_Internal_Sym *locsyms = *locsymsp;
7269
7270 if (locsyms == NULL)
7271 {
7272 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
7273 if (locsyms == NULL)
7274 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
7275 symtab_hdr->sh_info,
7276 0, NULL, NULL, NULL);
7277 if (locsyms == NULL)
7278 return FALSE;
7279 *locsymsp = locsyms;
7280 }
7281 sym = locsyms + r_symndx;
7282
7283 if (hp != NULL)
7284 *hp = NULL;
7285
7286 if (symp != NULL)
7287 *symp = sym;
7288
7289 if (symsecp != NULL)
cb33740c 7290 *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
411e1bfb 7291
e7b938ca 7292 if (tls_maskp != NULL)
411e1bfb
AM		 7293 {
7294 struct got_entry **lgot_ents;
f961d9dd 7295 unsigned char *tls_mask;
411e1bfb 7296
e7b938ca 7297 tls_mask = NULL;
411e1bfb
AM		 7298 lgot_ents = elf_local_got_ents (ibfd);
7299 if (lgot_ents != NULL)
7300 {
e054468f
AM		 7301 struct plt_entry **local_plt = (struct plt_entry **)
7302 (lgot_ents + symtab_hdr->sh_info);
f961d9dd 7303 unsigned char *lgot_masks = (unsigned char *)
e054468f 7304 (local_plt + symtab_hdr->sh_info);
e7b938ca 7305 tls_mask = &lgot_masks[r_symndx];
411e1bfb 7306 }
e7b938ca 7307 *tls_maskp = tls_mask;
411e1bfb
AM		 7308 }
7309 }
7310 return TRUE;
7311}
7312
e7b938ca 7313/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 7314 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 7315 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 7316
7317static int
f961d9dd 7318get_tls_mask (unsigned char **tls_maskp,
3a71aa26
AM		 7319 unsigned long *toc_symndx,
7320 bfd_vma *toc_addend,
0d4792f7 7321 Elf_Internal_Sym **locsymsp,
3a71aa26
AM		 7322 const Elf_Internal_Rela *rel,
7323 bfd *ibfd)
411e1bfb
AM		 7324{
7325 unsigned long r_symndx;
0d4792f7 7326 int next_r;
411e1bfb
AM		 7327 struct elf_link_hash_entry *h;
7328 Elf_Internal_Sym *sym;
7329 asection *sec;
7330 bfd_vma off;
7331
7332 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 7333 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 7334 return 0;
411e1bfb 7335
e7b938ca 7336 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb 7337 || sec == NULL
6bee8834 7338 || ppc64_elf_section_data (sec) == NULL
7c8fe5c4 7339 || ppc64_elf_section_data (sec)->sec_type != sec_toc)
951fd09b 7340 return 1;
411e1bfb
AM		 7341
7342 /* Look inside a TOC section too. */
7343 if (h != NULL)
7344 {
7345 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
7346 off = h->root.u.def.value;
7347 }
7348 else
7349 off = sym->st_value;
7350 off += rel->r_addend;
7351 BFD_ASSERT (off % 8 == 0);
3a71aa26
AM		 7352 r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8];
7353 next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1];
0d4792f7
AM		 7354 if (toc_symndx != NULL)
7355 *toc_symndx = r_symndx;
3a71aa26
AM		 7356 if (toc_addend != NULL)
7357 *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8];
7358 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
7359 return 0;
854b41e7 7360 if ((h == NULL || is_static_defined (h))
0d4792f7
AM		 7361 && (next_r == -1 || next_r == -2))
7362 return 1 - next_r;
951fd09b 7363 return 1;
411e1bfb
AM		 7364}
7365
3b421ab3
AM		 7366/* Find (or create) an entry in the tocsave hash table. */
7367
7368static struct tocsave_entry *
7369tocsave_find (struct ppc_link_hash_table *htab,
7370 enum insert_option insert,
7371 Elf_Internal_Sym **local_syms,
7372 const Elf_Internal_Rela *irela,
7373 bfd *ibfd)
7374{
7375 unsigned long r_indx;
7376 struct elf_link_hash_entry *h;
7377 Elf_Internal_Sym *sym;
7378 struct tocsave_entry ent, *p;
7379 hashval_t hash;
7380 struct tocsave_entry **slot;
7381
7382 r_indx = ELF64_R_SYM (irela->r_info);
7383 if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd))
7384 return NULL;
7385 if (ent.sec == NULL || ent.sec->output_section == NULL)
7386 {
7387 (*_bfd_error_handler)
7388 (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation"));
7389 return NULL;
7390 }
7391
7392 if (h != NULL)
7393 ent.offset = h->root.u.def.value;
7394 else
7395 ent.offset = sym->st_value;
7396 ent.offset += irela->r_addend;
7397
7398 hash = tocsave_htab_hash (&ent);
7399 slot = ((struct tocsave_entry **)
7400 htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert));
7401 if (slot == NULL)
7402 return NULL;
7403
7404 if (*slot == NULL)
7405 {
7406 p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p));
7407 if (p == NULL)
7408 return NULL;
7409 *p = ent;
7410 *slot = p;
7411 }
7412 return *slot;
7413}
7414
754021d0 7415/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 7416 code for the old ABI, these will already have been done. */
754021d0
AM		 7417
7418static bfd_boolean
7419adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
7420{
7421 struct ppc_link_hash_entry *eh;
7422 asection *sym_sec;
74f0fb50 7423 struct _opd_sec_data *opd;
754021d0
AM		 7424
7425 if (h->root.type == bfd_link_hash_indirect)
7426 return TRUE;
7427
754021d0
AM		 7428 if (h->root.type != bfd_link_hash_defined
7429 && h->root.type != bfd_link_hash_defweak)
7430 return TRUE;
7431
7432 eh = (struct ppc_link_hash_entry *) h;
7433 if (eh->adjust_done)
7434 return TRUE;
7435
7436 sym_sec = eh->elf.root.u.def.section;
74f0fb50
AM		 7437 opd = get_opd_info (sym_sec);
7438 if (opd != NULL && opd->adjust != NULL)
754021d0 7439 {
51aecdc5 7440 long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)];
4025353c
AM		 7441 if (adjust == -1)
7442 {
7443 /* This entry has been deleted. */
b3fac117 7444 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
81688140
AM		 7445 if (dsec == NULL)
7446 {
7447 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
dbaa2011 7448 if (discarded_section (dsec))
81688140 7449 {
b3fac117 7450 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
81688140
AM		 7451 break;
7452 }
7453 }
4025353c 7454 eh->elf.root.u.def.value = 0;
81688140 7455 eh->elf.root.u.def.section = dsec;
4025353c
AM		 7456 }
7457 else
7458 eh->elf.root.u.def.value += adjust;
754021d0
AM		 7459 eh->adjust_done = 1;
7460 }
7461 return TRUE;
7462}
7463
8c1d1bb8 7464/* Handles decrementing dynamic reloc counts for the reloc specified by
19e08130 7465 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM
8c1d1bb8
AM		 7466 have already been determined. */
7467
7468static bfd_boolean
7469dec_dynrel_count (bfd_vma r_info,
7470 asection *sec,
7471 struct bfd_link_info *info,
7472 Elf_Internal_Sym **local_syms,
7473 struct elf_link_hash_entry *h,
19e08130 7474 Elf_Internal_Sym *sym)
8c1d1bb8
AM		 7475{
7476 enum elf_ppc64_reloc_type r_type;
19e08130 7477 asection *sym_sec = NULL;
8c1d1bb8
AM		 7478
7479 /* Can this reloc be dynamic? This switch, and later tests here
7480 should be kept in sync with the code in check_relocs. */
7481 r_type = ELF64_R_TYPE (r_info);
7482 switch (r_type)
7483 {
7484 default:
7485 return TRUE;
7486
7487 case R_PPC64_TPREL16:
7488 case R_PPC64_TPREL16_LO:
7489 case R_PPC64_TPREL16_HI:
7490 case R_PPC64_TPREL16_HA:
7491 case R_PPC64_TPREL16_DS:
7492 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 7493 case R_PPC64_TPREL16_HIGH:
7494 case R_PPC64_TPREL16_HIGHA:
8c1d1bb8
AM		 7495 case R_PPC64_TPREL16_HIGHER:
7496 case R_PPC64_TPREL16_HIGHERA:
7497 case R_PPC64_TPREL16_HIGHEST:
7498 case R_PPC64_TPREL16_HIGHESTA:
7499 if (!info->shared)
7500 return TRUE;
7501
7502 case R_PPC64_TPREL64:
7503 case R_PPC64_DTPMOD64:
7504 case R_PPC64_DTPREL64:
7505 case R_PPC64_ADDR64:
7506 case R_PPC64_REL30:
7507 case R_PPC64_REL32:
7508 case R_PPC64_REL64:
7509 case R_PPC64_ADDR14:
7510 case R_PPC64_ADDR14_BRNTAKEN:
7511 case R_PPC64_ADDR14_BRTAKEN:
7512 case R_PPC64_ADDR16:
7513 case R_PPC64_ADDR16_DS:
7514 case R_PPC64_ADDR16_HA:
7515 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 7516 case R_PPC64_ADDR16_HIGH:
7517 case R_PPC64_ADDR16_HIGHA:
8c1d1bb8
AM		 7518 case R_PPC64_ADDR16_HIGHER:
7519 case R_PPC64_ADDR16_HIGHERA:
7520 case R_PPC64_ADDR16_HIGHEST:
7521 case R_PPC64_ADDR16_HIGHESTA:
7522 case R_PPC64_ADDR16_LO:
7523 case R_PPC64_ADDR16_LO_DS:
7524 case R_PPC64_ADDR24:
7525 case R_PPC64_ADDR32:
7526 case R_PPC64_UADDR16:
7527 case R_PPC64_UADDR32:
7528 case R_PPC64_UADDR64:
7529 case R_PPC64_TOC:
7530 break;
7531 }
7532
7533 if (local_syms != NULL)
7534 {
7535 unsigned long r_symndx;
8c1d1bb8
AM		 7536 bfd *ibfd = sec->owner;
7537
7538 r_symndx = ELF64_R_SYM (r_info);
7539 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
7540 return FALSE;
7541 }
7542
7543 if ((info->shared
1d483afe 7544 && (must_be_dyn_reloc (info, r_type)
8c1d1bb8 7545 || (h != NULL
198f1157 7546 && (!SYMBOLIC_BIND (info, h)
8c1d1bb8
AM		 7547 || h->root.type == bfd_link_hash_defweak
7548 || !h->def_regular))))
7549 || (ELIMINATE_COPY_RELOCS
7550 && !info->shared
7551 && h != NULL
7552 && (h->root.type == bfd_link_hash_defweak
7553 || !h->def_regular)))
7554 ;
7555 else
7556 return TRUE;
7557
7558 if (h != NULL)
6edfbbad 7559 {
19e08130
AM		 7560 struct elf_dyn_relocs *p;
7561 struct elf_dyn_relocs **pp;
7562 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
7563
7564 /* elf_gc_sweep may have already removed all dyn relocs associated
7565 with local syms for a given section. Also, symbol flags are
7566 changed by elf_gc_sweep_symbol, confusing the test above. Don't
7567 report a dynreloc miscount. */
7568 if (*pp == NULL && info->gc_sections)
7569 return TRUE;
7570
7571 while ((p = *pp) != NULL)
60124e18 7572 {
19e08130
AM		 7573 if (p->sec == sec)
7574 {
7575 if (!must_be_dyn_reloc (info, r_type))
7576 p->pc_count -= 1;
7577 p->count -= 1;
7578 if (p->count == 0)
7579 *pp = p->next;
7580 return TRUE;
7581 }
7582 pp = &p->next;
60124e18 7583 }
6edfbbad 7584 }
19e08130
AM		 7585 else
7586 {
7587 struct ppc_dyn_relocs *p;
7588 struct ppc_dyn_relocs **pp;
7589 void *vpp;
7590 bfd_boolean is_ifunc;
8c1d1bb8 7591
19e08130
AM		 7592 if (local_syms == NULL)
7593 sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
7594 if (sym_sec == NULL)
7595 sym_sec = sec;
c57da1a7 7596
19e08130
AM		 7597 vpp = &elf_section_data (sym_sec)->local_dynrel;
7598 pp = (struct ppc_dyn_relocs **) vpp;
7599
7600 if (*pp == NULL && info->gc_sections)
7601 return TRUE;
7602
7603 is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC;
7604 while ((p = *pp) != NULL)
8c1d1bb8 7605 {
19e08130
AM		 7606 if (p->sec == sec && p->ifunc == is_ifunc)
7607 {
7608 p->count -= 1;
7609 if (p->count == 0)
7610 *pp = p->next;
7611 return TRUE;
7612 }
7613 pp = &p->next;
8c1d1bb8 7614 }
8c1d1bb8
AM		 7615 }
7616
8de848d8 7617 info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"),
25f53a85 7618 sec->owner, sec);
8c1d1bb8
AM		 7619 bfd_set_error (bfd_error_bad_value);
7620 return FALSE;
7621}
7622
754021d0
AM		 7623/* Remove unused Official Procedure Descriptor entries. Currently we
7624 only remove those associated with functions in discarded link-once
7625 sections, or weakly defined functions that have been overridden. It
7626 would be possible to remove many more entries for statically linked
7627 applications. */
7628
b34976b6 7629bfd_boolean
e7d1c40c 7630ppc64_elf_edit_opd (struct bfd_link_info *info)
1e2f5b6e
AM		 7631{
7632 bfd *ibfd;
754021d0 7633 bfd_boolean some_edited = FALSE;
3f764659 7634 asection *need_pad = NULL;
e7d1c40c
AM		 7635 struct ppc_link_hash_table *htab;
7636
7637 htab = ppc_hash_table (info);
7638 if (htab == NULL)
7639 return FALSE;
1e2f5b6e 7640
c72f2fb2 7641 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
1e2f5b6e
AM		 7642 {
7643 asection *sec;
7644 Elf_Internal_Rela *relstart, *rel, *relend;
7645 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 7646 Elf_Internal_Sym *local_syms;
74f0fb50 7647 struct _opd_sec_data *opd;
51aecdc5 7648 bfd_boolean need_edit, add_aux_fields, broken;
3f764659 7649 bfd_size_type cnt_16b = 0;
1e2f5b6e 7650
854b41e7
AM		 7651 if (!is_ppc64_elf (ibfd))
7652 continue;
7653
1e2f5b6e 7654 sec = bfd_get_section_by_name (ibfd, ".opd");
46de2a7c 7655 if (sec == NULL || sec->size == 0)
1e2f5b6e
AM		 7656 continue;
7657
dbaa2011 7658 if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS)
4b85d634
AM		 7659 continue;
7660
1e2f5b6e
AM		 7661 if (sec->output_section == bfd_abs_section_ptr)
7662 continue;
7663
7664 /* Look through the section relocs. */
7665 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
7666 continue;
7667
6cdc0ccc 7668 local_syms = NULL;
0ffa91dd 7669 symtab_hdr = &elf_symtab_hdr (ibfd);
1e2f5b6e
AM		 7670
7671 /* Read the relocations. */
4ce794b7 7672 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 7673 info->keep_memory);
1e2f5b6e 7674 if (relstart == NULL)
b34976b6 7675 return FALSE;
1e2f5b6e
AM		 7676
7677 /* First run through the relocs to check they are sane, and to
7678 determine whether we need to edit this opd section. */
b34976b6 7679 need_edit = FALSE;
51aecdc5 7680 broken = FALSE;
3f764659 7681 need_pad = sec;
1e2f5b6e 7682 relend = relstart + sec->reloc_count;
50bc7936 7683 for (rel = relstart; rel < relend; )
1e2f5b6e 7684 {
04c9666a 7685 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 7686 unsigned long r_symndx;
7687 asection *sym_sec;
7688 struct elf_link_hash_entry *h;
7689 Elf_Internal_Sym *sym;
51aecdc5 7690 bfd_vma offset;
1e2f5b6e 7691
51aecdc5 7692 /* .opd contains an array of 16 or 24 byte entries. We're
1e2f5b6e
AM		 7693 only interested in the reloc pointing to a function entry
7694 point. */
51aecdc5
AM		 7695 offset = rel->r_offset;
7696 if (rel + 1 == relend
7697 || rel[1].r_offset != offset + 8)
1e2f5b6e
AM		 7698 {
7699 /* If someone messes with .opd alignment then after a
7700 "ld -r" we might have padding in the middle of .opd.
7701 Also, there's nothing to prevent someone putting
7702 something silly in .opd with the assembler. No .opd
b34976b6 7703 optimization for them! */
3f764659 7704 broken_opd:
1e2f5b6e 7705 (*_bfd_error_handler)
d003868e 7706 (_("%B: .opd is not a regular array of opd entries"), ibfd);
51aecdc5 7707 broken = TRUE;
1e2f5b6e
AM		 7708 break;
7709 }
7710
50bc7936
AM		 7711 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
7712 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
7713 {
7714 (*_bfd_error_handler)
d003868e
AM		 7715 (_("%B: unexpected reloc type %u in .opd section"),
7716 ibfd, r_type);
51aecdc5 7717 broken = TRUE;
50bc7936
AM		 7718 break;
7719 }
7720
1e2f5b6e 7721 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 7722 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7723 r_symndx, ibfd))
50bc7936 7724 goto error_ret;
1e2f5b6e
AM		 7725
7726 if (sym_sec == NULL || sym_sec->owner == NULL)
7727 {
411e1bfb
AM		 7728 const char *sym_name;
7729 if (h != NULL)
7730 sym_name = h->root.root.string;
7731 else
26c61ae5
L		 7732 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7733 sym_sec);
411e1bfb 7734
1e2f5b6e 7735 (*_bfd_error_handler)
d003868e
AM		 7736 (_("%B: undefined sym `%s' in .opd section"),
7737 ibfd, sym_name);
51aecdc5 7738 broken = TRUE;
1e2f5b6e
AM		 7739 break;
7740 }
7741
51020317
AM		 7742 /* opd entries are always for functions defined in the
7743 current input bfd. If the symbol isn't defined in the
7744 input bfd, then we won't be using the function in this
7745 bfd; It must be defined in a linkonce section in another
7746 bfd, or is weak. It's also possible that we are
7747 discarding the function due to a linker script /DISCARD/,
7748 which we test for via the output_section. */
7749 if (sym_sec->owner != ibfd
7750 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 7751 need_edit = TRUE;
1e2f5b6e 7752
50bc7936 7753 rel += 2;
51aecdc5
AM		 7754 if (rel + 1 == relend
7755 || (rel + 2 < relend
7756 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC))
7757 ++rel;
7758
7759 if (rel == relend)
3f764659
JJ		 7760 {
7761 if (sec->size == offset + 24)
7762 {
7763 need_pad = NULL;
7764 break;
7765 }
51aecdc5 7766 if (sec->size == offset + 16)
3f764659
JJ		 7767 {
7768 cnt_16b++;
7769 break;
7770 }
7771 goto broken_opd;
7772 }
3f764659
JJ		 7773 else if (rel + 1 < relend
7774 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
7775 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
7776 {
51aecdc5
AM		 7777 if (rel[0].r_offset == offset + 16)
7778 cnt_16b++;
7779 else if (rel[0].r_offset != offset + 24)
7780 goto broken_opd;
3f764659
JJ		 7781 }
7782 else
7783 goto broken_opd;
1e2f5b6e
AM		 7784 }
7785
e7d1c40c 7786 add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0;
3f764659 7787
51aecdc5 7788 if (!broken && (need_edit || add_aux_fields))
1e2f5b6e
AM		 7789 {
7790 Elf_Internal_Rela *write_rel;
d4730f92 7791 Elf_Internal_Shdr *rel_hdr;
1e2f5b6e 7792 bfd_byte *rptr, *wptr;
983bddc8 7793 bfd_byte *new_contents;
74f0fb50
AM		 7794 bfd_size_type amt;
7795
983bddc8 7796 new_contents = NULL;
51aecdc5 7797 amt = OPD_NDX (sec->size) * sizeof (long);
74f0fb50 7798 opd = &ppc64_elf_section_data (sec)->u.opd;
33c0ec9d 7799 opd->adjust = bfd_zalloc (sec->owner, amt);
74f0fb50
AM		 7800 if (opd->adjust == NULL)
7801 return FALSE;
7802 ppc64_elf_section_data (sec)->sec_type = sec_opd;
1e2f5b6e
AM		 7803
7804 /* This seems a waste of time as input .opd sections are all
7805 zeros as generated by gcc, but I suppose there's no reason
7806 this will always be so. We might start putting something in
7807 the third word of .opd entries. */
7808 if ((sec->flags & SEC_IN_MEMORY) == 0)
7809 {
eea6121a
AM		 7810 bfd_byte *loc;
7811 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 7812 {
eea6121a
AM		 7813 if (loc != NULL)
7814 free (loc);
50bc7936 7815 error_ret:
6cdc0ccc
AM		 7816 if (local_syms != NULL
7817 && symtab_hdr->contents != (unsigned char *) local_syms)
7818 free (local_syms);
6cdc0ccc
AM		 7819 if (elf_section_data (sec)->relocs != relstart)
7820 free (relstart);
b34976b6 7821 return FALSE;
6cdc0ccc 7822 }
1e2f5b6e
AM		 7823 sec->contents = loc;
7824 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
7825 }
7826
7827 elf_section_data (sec)->relocs = relstart;
7828
3f764659 7829 new_contents = sec->contents;
3f764659
JJ		 7830 if (add_aux_fields)
7831 {
7832 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
7833 if (new_contents == NULL)
7834 return FALSE;
51aecdc5 7835 need_pad = NULL;
3f764659 7836 }
b4f4e59f
AM		 7837 wptr = new_contents;
7838 rptr = sec->contents;
1e2f5b6e 7839 write_rel = relstart;
51aecdc5 7840 for (rel = relstart; rel < relend; )
1e2f5b6e 7841 {
50bc7936
AM		 7842 unsigned long r_symndx;
7843 asection *sym_sec;
7844 struct elf_link_hash_entry *h;
51aecdc5 7845 struct ppc_link_hash_entry *fdh = NULL;
50bc7936 7846 Elf_Internal_Sym *sym;
51aecdc5
AM		 7847 long opd_ent_size;
7848 Elf_Internal_Rela *next_rel;
7849 bfd_boolean skip;
50bc7936
AM		 7850
7851 r_symndx = ELF64_R_SYM (rel->r_info);
7852 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 7853 r_symndx, ibfd))
50bc7936
AM		 7854 goto error_ret;
7855
51aecdc5
AM		 7856 next_rel = rel + 2;
7857 if (next_rel + 1 == relend
7858 || (next_rel + 2 < relend
7859 && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC))
7860 ++next_rel;
7861
7862 /* See if the .opd entry is full 24 byte or
7863 16 byte (with fd_aux entry overlapped with next
7864 fd_func). */
7865 opd_ent_size = 24;
7866 if (next_rel == relend)
1e2f5b6e 7867 {
51aecdc5 7868 if (sec->size == rel->r_offset + 16)
3f764659 7869 opd_ent_size = 16;
51aecdc5
AM		 7870 }
7871 else if (next_rel->r_offset == rel->r_offset + 16)
7872 opd_ent_size = 16;
3f764659 7873
51aecdc5
AM		 7874 if (h != NULL
7875 && h->root.root.string[0] == '.')
7876 {
7877 fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab);
7878 if (fdh != NULL
7879 && fdh->elf.root.type != bfd_link_hash_defined
7880 && fdh->elf.root.type != bfd_link_hash_defweak)
7881 fdh = NULL;
7882 }
1e2f5b6e 7883
51aecdc5
AM		 7884 skip = (sym_sec->owner != ibfd
7885 || sym_sec->output_section == bfd_abs_section_ptr);
7886 if (skip)
7887 {
7888 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7 7889 {
51aecdc5
AM		 7890 /* Arrange for the function descriptor sym
7891 to be dropped. */
7892 fdh->elf.root.u.def.value = 0;
7893 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 7894 }
51aecdc5 7895 opd->adjust[OPD_NDX (rel->r_offset)] = -1;
1e2f5b6e 7896
51aecdc5
AM		 7897 if (NO_OPD_RELOCS || info->relocatable)
7898 rel = next_rel;
7899 else
7900 while (1)
7901 {
7902 if (!dec_dynrel_count (rel->r_info, sec, info,
7903 NULL, h, sym))
7904 goto error_ret;
754021d0 7905
51aecdc5
AM		 7906 if (++rel == next_rel)
7907 break;
1e2f5b6e 7908
51aecdc5
AM		 7909 r_symndx = ELF64_R_SYM (rel->r_info);
7910 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7911 r_symndx, ibfd))
7912 goto error_ret;
7913 }
50bc7936
AM		 7914 }
7915 else
1e2f5b6e 7916 {
51aecdc5
AM		 7917 /* We'll be keeping this opd entry. */
7918 long adjust;
7919
7920 if (fdh != NULL)
7921 {
7922 /* Redefine the function descriptor symbol to
7923 this location in the opd section. It is
7924 necessary to update the value here rather
7925 than using an array of adjustments as we do
7926 for local symbols, because various places
7927 in the generic ELF code use the value
7928 stored in u.def.value. */
7929 fdh->elf.root.u.def.value = wptr - new_contents;
7930 fdh->adjust_done = 1;
7931 }
7932
7933 /* Local syms are a bit tricky. We could
7934 tweak them as they can be cached, but
7935 we'd need to look through the local syms
7936 for the function descriptor sym which we
7937 don't have at the moment. So keep an
7938 array of adjustments. */
7939 adjust = (wptr - new_contents) - (rptr - sec->contents);
7940 opd->adjust[OPD_NDX (rel->r_offset)] = adjust;
7941
7942 if (wptr != rptr)
7943 memcpy (wptr, rptr, opd_ent_size);
7944 wptr += opd_ent_size;
7945 if (add_aux_fields && opd_ent_size == 16)
7946 {
7947 memset (wptr, '\0', 8);
7948 wptr += 8;
7949 }
7950
50bc7936 7951 /* We need to adjust any reloc offsets to point to the
51aecdc5
AM		 7952 new opd entries. */
7953 for ( ; rel != next_rel; ++rel)
7954 {
7955 rel->r_offset += adjust;
7956 if (write_rel != rel)
7957 memcpy (write_rel, rel, sizeof (*rel));
7958 ++write_rel;
7959 }
1e2f5b6e 7960 }
51aecdc5
AM		 7961
7962 rptr += opd_ent_size;
1e2f5b6e
AM		 7963 }
7964
3f764659 7965 sec->size = wptr - new_contents;
1e2f5b6e 7966 sec->reloc_count = write_rel - relstart;
3f764659
JJ		 7967 if (add_aux_fields)
7968 {
7969 free (sec->contents);
7970 sec->contents = new_contents;
7971 }
7972
05bf9422 7973 /* Fudge the header size too, as this is used later in
cdcf6e38 7974 elf_bfd_final_link if we are emitting relocs. */
d4730f92
BS		 7975 rel_hdr = _bfd_elf_single_rel_hdr (sec);
7976 rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize;
754021d0 7977 some_edited = TRUE;
1e2f5b6e 7978 }
6cdc0ccc 7979 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 7980 free (relstart);
6cdc0ccc 7981
411e1bfb
AM		 7982 if (local_syms != NULL
7983 && symtab_hdr->contents != (unsigned char *) local_syms)
7984 {
7985 if (!info->keep_memory)
7986 free (local_syms);
7987 else
7988 symtab_hdr->contents = (unsigned char *) local_syms;
7989 }
7990 }
7991
754021d0
AM		 7992 if (some_edited)
7993 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
7994
3f764659
JJ		 7995 /* If we are doing a final link and the last .opd entry is just 16 byte
7996 long, add a 8 byte padding after it. */
7997 if (need_pad != NULL && !info->relocatable)
7998 {
7999 bfd_byte *p;
8000
8001 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
8002 {
8003 BFD_ASSERT (need_pad->size > 0);
8004
8005 p = bfd_malloc (need_pad->size + 8);
8006 if (p == NULL)
8007 return FALSE;
699733f6 8008
3f764659
JJ		 8009 if (! bfd_get_section_contents (need_pad->owner, need_pad,
8010 p, 0, need_pad->size))
8011 return FALSE;
8012
8013 need_pad->contents = p;
8014 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
8015 }
8016 else
8017 {
8018 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
8019 if (p == NULL)
8020 return FALSE;
8021
8022 need_pad->contents = p;
8023 }
8024
8025 memset (need_pad->contents + need_pad->size, 0, 8);
8026 need_pad->size += 8;
8027 }
8028
411e1bfb
AM		 8029 return TRUE;
8030}
8031
e1918d23 8032/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 8033
e1918d23 8034asection *
e7d1c40c 8035ppc64_elf_tls_setup (struct bfd_link_info *info)
411e1bfb 8036{
411e1bfb
AM		 8037 struct ppc_link_hash_table *htab;
8038
411e1bfb 8039 htab = ppc_hash_table (info);
4dfe6ac6
NC		 8040 if (htab == NULL)
8041 return NULL;
8042
ee67d69a
AM		 8043 if (abiversion (info->output_bfd) == 1)
8044 htab->opd_abi = 1;
8045
e7d1c40c 8046 if (htab->params->no_multi_toc)
33c0ec9d
AM		 8047 htab->do_multi_toc = 0;
8048 else if (!htab->do_multi_toc)
e7d1c40c 8049 htab->params->no_multi_toc = 1;
33c0ec9d 8050
3a71aa26
AM		 8051 htab->tls_get_addr = ((struct ppc_link_hash_entry *)
8052 elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
8053 FALSE, FALSE, TRUE));
a7f2871e
AM		 8054 /* Move dynamic linking info to the function descriptor sym. */
8055 if (htab->tls_get_addr != NULL)
8056 func_desc_adjust (&htab->tls_get_addr->elf, info);
3a71aa26
AM		 8057 htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *)
8058 elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
8059 FALSE, FALSE, TRUE));
e7d1c40c 8060 if (!htab->params->no_tls_get_addr_opt)
a7f2871e
AM		 8061 {
8062 struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd;
8063
8064 opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt",
8065 FALSE, FALSE, TRUE);
8066 if (opt != NULL)
8067 func_desc_adjust (opt, info);
8068 opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
8069 FALSE, FALSE, TRUE);
8070 if (opt_fd != NULL
8071 && (opt_fd->root.type == bfd_link_hash_defined
8072 || opt_fd->root.type == bfd_link_hash_defweak))
8073 {
8074 /* If glibc supports an optimized __tls_get_addr call stub,
8075 signalled by the presence of __tls_get_addr_opt, and we'll
8076 be calling __tls_get_addr via a plt call stub, then
8077 make __tls_get_addr point to __tls_get_addr_opt. */
8078 tga_fd = &htab->tls_get_addr_fd->elf;
8079 if (htab->elf.dynamic_sections_created
8080 && tga_fd != NULL
8081 && (tga_fd->type == STT_FUNC
8082 || tga_fd->needs_plt)
8083 && !(SYMBOL_CALLS_LOCAL (info, tga_fd)
8084 || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT
8085 && tga_fd->root.type == bfd_link_hash_undefweak)))
8086 {
8087 struct plt_entry *ent;
8088
8089 for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next)
8090 if (ent->plt.refcount > 0)
8091 break;
8092 if (ent != NULL)
8093 {
8094 tga_fd->root.type = bfd_link_hash_indirect;
8095 tga_fd->root.u.i.link = &opt_fd->root;
8096 ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd);
8097 if (opt_fd->dynindx != -1)
8098 {
8099 /* Use __tls_get_addr_opt in dynamic relocations. */
8100 opt_fd->dynindx = -1;
8101 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
8102 opt_fd->dynstr_index);
8103 if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd))
854b41e7 8104 return NULL;
a7f2871e
AM		 8105 }
8106 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd;
8107 tga = &htab->tls_get_addr->elf;
8108 if (opt != NULL && tga != NULL)
8109 {
8110 tga->root.type = bfd_link_hash_indirect;
8111 tga->root.u.i.link = &opt->root;
8112 ppc64_elf_copy_indirect_symbol (info, opt, tga);
8113 _bfd_elf_link_hash_hide_symbol (info, opt,
8114 tga->forced_local);
8115 htab->tls_get_addr = (struct ppc_link_hash_entry *) opt;
8116 }
8117 htab->tls_get_addr_fd->oh = htab->tls_get_addr;
8118 htab->tls_get_addr_fd->is_func_descriptor = 1;
8119 if (htab->tls_get_addr != NULL)
8120 {
8121 htab->tls_get_addr->oh = htab->tls_get_addr_fd;
8122 htab->tls_get_addr->is_func = 1;
8123 }
8124 }
8125 }
8126 }
8127 else
e7d1c40c 8128 htab->params->no_tls_get_addr_opt = TRUE;
a7f2871e 8129 }
33c0ec9d 8130 return _bfd_elf_tls_setup (info->output_bfd, info);
3a71aa26 8131}
8387904d 8132
3a71aa26
AM		 8133/* Return TRUE iff REL is a branch reloc with a global symbol matching
8134 HASH1 or HASH2. */
8387904d 8135
3a71aa26
AM		 8136static bfd_boolean
8137branch_reloc_hash_match (const bfd *ibfd,
8138 const Elf_Internal_Rela *rel,
8139 const struct ppc_link_hash_entry *hash1,
8140 const struct ppc_link_hash_entry *hash2)
8141{
8142 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
8143 enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info);
8144 unsigned int r_symndx = ELF64_R_SYM (rel->r_info);
8145
e054468f 8146 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
8387904d 8147 {
3a71aa26
AM		 8148 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
8149 struct elf_link_hash_entry *h;
8387904d 8150
3a71aa26 8151 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 8152 h = elf_follow_link (h);
3a71aa26
AM		 8153 if (h == &hash1->elf || h == &hash2->elf)
8154 return TRUE;
a48ebf4d 8155 }
3a71aa26 8156 return FALSE;
951fd09b 8157}
411e1bfb 8158
951fd09b
AM		 8159/* Run through all the TLS relocs looking for optimization
8160 opportunities. The linker has been hacked (see ppc64elf.em) to do
8161 a preliminary section layout so that we know the TLS segment
8162 offsets. We can't optimize earlier because some optimizations need
8163 to know the tp offset, and we need to optimize before allocating
8164 dynamic relocations. */
8165
8166bfd_boolean
33c0ec9d 8167ppc64_elf_tls_optimize (struct bfd_link_info *info)
951fd09b
AM		 8168{
8169 bfd *ibfd;
8170 asection *sec;
8171 struct ppc_link_hash_table *htab;
663a1470 8172 unsigned char *toc_ref;
102890f0 8173 int pass;
951fd09b 8174
1d483afe 8175 if (info->relocatable || !info->executable)
411e1bfb
AM		 8176 return TRUE;
8177
951fd09b 8178 htab = ppc_hash_table (info);
4dfe6ac6
NC		 8179 if (htab == NULL)
8180 return FALSE;
8181
663a1470
AM		 8182 /* Make two passes over the relocs. On the first pass, mark toc
8183 entries involved with tls relocs, and check that tls relocs
8184 involved in setting up a tls_get_addr call are indeed followed by
8185 such a call. If they are not, we can't do any tls optimization.
8186 On the second pass twiddle tls_mask flags to notify
8187 relocate_section that optimization can be done, and adjust got
8188 and plt refcounts. */
8189 toc_ref = NULL;
8190 for (pass = 0; pass < 2; ++pass)
c72f2fb2 8191 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
663a1470
AM		 8192 {
8193 Elf_Internal_Sym *locsyms = NULL;
8194 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
8195
102890f0
AM		 8196 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8197 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
8198 {
8199 Elf_Internal_Rela *relstart, *rel, *relend;
663a1470 8200 bfd_boolean found_tls_get_addr_arg = 0;
411e1bfb 8201
102890f0
AM		 8202 /* Read the relocations. */
8203 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
8204 info->keep_memory);
8205 if (relstart == NULL)
2915c55b
JK		 8206 {
8207 free (toc_ref);
8208 return FALSE;
8209 }
411e1bfb 8210
102890f0
AM		 8211 relend = relstart + sec->reloc_count;
8212 for (rel = relstart; rel < relend; rel++)
8213 {
8214 enum elf_ppc64_reloc_type r_type;
8215 unsigned long r_symndx;
8216 struct elf_link_hash_entry *h;
8217 Elf_Internal_Sym *sym;
8218 asection *sym_sec;
f961d9dd
AM		 8219 unsigned char *tls_mask;
8220 unsigned char tls_set, tls_clear, tls_type = 0;
102890f0
AM		 8221 bfd_vma value;
8222 bfd_boolean ok_tprel, is_local;
8223 long toc_ref_index = 0;
8224 int expecting_tls_get_addr = 0;
663a1470 8225 bfd_boolean ret = FALSE;
411e1bfb 8226
102890f0
AM		 8227 r_symndx = ELF64_R_SYM (rel->r_info);
8228 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
8229 r_symndx, ibfd))
8230 {
8231 err_free_rel:
8232 if (elf_section_data (sec)->relocs != relstart)
8233 free (relstart);
8234 if (toc_ref != NULL)
8235 free (toc_ref);
8236 if (locsyms != NULL
0ffa91dd 8237 && (elf_symtab_hdr (ibfd).contents
102890f0
AM		 8238 != (unsigned char *) locsyms))
8239 free (locsyms);
663a1470 8240 return ret;
102890f0 8241 }
411e1bfb 8242
102890f0
AM		 8243 if (h != NULL)
8244 {
766bc656
AM		 8245 if (h->root.type == bfd_link_hash_defined
8246 || h->root.type == bfd_link_hash_defweak)
8247 value = h->root.u.def.value;
8248 else if (h->root.type == bfd_link_hash_undefweak)
8249 value = 0;
8250 else
663a1470
AM		 8251 {
8252 found_tls_get_addr_arg = 0;
8253 continue;
8254 }
102890f0
AM		 8255 }
8256 else
8257 /* Symbols referenced by TLS relocs must be of type
8258 STT_TLS. So no need for .opd local sym adjust. */
8259 value = sym->st_value;
8260
8261 ok_tprel = FALSE;
8262 is_local = FALSE;
8263 if (h == NULL
8264 || !h->def_dynamic)
8265 {
8266 is_local = TRUE;
766bc656
AM		 8267 if (h != NULL
8268 && h->root.type == bfd_link_hash_undefweak)
8269 ok_tprel = TRUE;
8270 else
8271 {
8272 value += sym_sec->output_offset;
8273 value += sym_sec->output_section->vma;
8274 value -= htab->elf.tls_sec->vma;
8275 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
8276 < (bfd_vma) 1 << 32);
8277 }
102890f0 8278 }
951fd09b 8279
102890f0 8280 r_type = ELF64_R_TYPE (rel->r_info);
663a1470
AM		 8281 /* If this section has old-style __tls_get_addr calls
8282 without marker relocs, then check that each
8283 __tls_get_addr call reloc is preceded by a reloc
8284 that conceivably belongs to the __tls_get_addr arg
8285 setup insn. If we don't find matching arg setup
8286 relocs, don't do any tls optimization. */
8287 if (pass == 0
8288 && sec->has_tls_get_addr_call
8289 && h != NULL
8290 && (h == &htab->tls_get_addr->elf
8291 || h == &htab->tls_get_addr_fd->elf)
8292 && !found_tls_get_addr_arg
8293 && is_branch_reloc (r_type))
8294 {
25f53a85 8295 info->callbacks->minfo (_("%H __tls_get_addr lost arg, "
663a1470
AM		 8296 "TLS optimization disabled\n"),
8297 ibfd, sec, rel->r_offset);
8298 ret = TRUE;
8299 goto err_free_rel;
8300 }
8301
8302 found_tls_get_addr_arg = 0;
102890f0
AM		 8303 switch (r_type)
8304 {
8305 case R_PPC64_GOT_TLSLD16:
8306 case R_PPC64_GOT_TLSLD16_LO:
8307 expecting_tls_get_addr = 1;
663a1470 8308 found_tls_get_addr_arg = 1;
102890f0
AM		 8309 /* Fall thru */
8310
8311 case R_PPC64_GOT_TLSLD16_HI:
8312 case R_PPC64_GOT_TLSLD16_HA:
8313 /* These relocs should never be against a symbol
8314 defined in a shared lib. Leave them alone if
8315 that turns out to be the case. */
8316 if (!is_local)
8317 continue;
411e1bfb 8318
102890f0 8319 /* LD -> LE */
411e1bfb 8320 tls_set = 0;
102890f0
AM		 8321 tls_clear = TLS_LD;
8322 tls_type = TLS_TLS | TLS_LD;
8323 break;
411e1bfb 8324
102890f0
AM		 8325 case R_PPC64_GOT_TLSGD16:
8326 case R_PPC64_GOT_TLSGD16_LO:
8327 expecting_tls_get_addr = 1;
663a1470 8328 found_tls_get_addr_arg = 1;
102890f0
AM		 8329 /* Fall thru */
8330
8331 case R_PPC64_GOT_TLSGD16_HI:
8332 case R_PPC64_GOT_TLSGD16_HA:
8333 if (ok_tprel)
8334 /* GD -> LE */
411e1bfb 8335 tls_set = 0;
102890f0
AM		 8336 else
8337 /* GD -> IE */
8338 tls_set = TLS_TLS | TLS_TPRELGD;
8339 tls_clear = TLS_GD;
8340 tls_type = TLS_TLS | TLS_GD;
8341 break;
8342
8343 case R_PPC64_GOT_TPREL16_DS:
8344 case R_PPC64_GOT_TPREL16_LO_DS:
8345 case R_PPC64_GOT_TPREL16_HI:
8346 case R_PPC64_GOT_TPREL16_HA:
8347 if (ok_tprel)
8348 {
8349 /* IE -> LE */
8350 tls_set = 0;
8351 tls_clear = TLS_TPREL;
8352 tls_type = TLS_TLS | TLS_TPREL;
8353 break;
8354 }
411e1bfb
AM		 8355 continue;
8356
727fc41e
AM		 8357 case R_PPC64_TLSGD:
8358 case R_PPC64_TLSLD:
663a1470
AM		 8359 found_tls_get_addr_arg = 1;
8360 /* Fall thru */
8361
8362 case R_PPC64_TLS:
8363 case R_PPC64_TOC16:
8364 case R_PPC64_TOC16_LO:
102890f0
AM		 8365 if (sym_sec == NULL || sym_sec != toc)
8366 continue;
8367
8368 /* Mark this toc entry as referenced by a TLS
8369 code sequence. We can do that now in the
8370 case of R_PPC64_TLS, and after checking for
8371 tls_get_addr for the TOC16 relocs. */
8372 if (toc_ref == NULL)
663a1470
AM		 8373 toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8);
8374 if (toc_ref == NULL)
8375 goto err_free_rel;
8376
102890f0
AM		 8377 if (h != NULL)
8378 value = h->root.u.def.value;
8379 else
8380 value = sym->st_value;
8381 value += rel->r_addend;
73242275
AM		 8382 if (value % 8 != 0)
8383 continue;
8384 BFD_ASSERT (value < toc->size
8385 && toc->output_offset % 8 == 0);
663a1470 8386 toc_ref_index = (value + toc->output_offset) / 8;
727fc41e
AM		 8387 if (r_type == R_PPC64_TLS
8388 || r_type == R_PPC64_TLSGD
8389 || r_type == R_PPC64_TLSLD)
102890f0
AM		 8390 {
8391 toc_ref[toc_ref_index] = 1;
8392 continue;
8393 }
8394
8395 if (pass != 0 && toc_ref[toc_ref_index] == 0)
8396 continue;
8397
8398 tls_set = 0;
8399 tls_clear = 0;
8400 expecting_tls_get_addr = 2;
8401 break;
8402
8403 case R_PPC64_TPREL64:
8404 if (pass == 0
8405 || sec != toc
8406 || toc_ref == NULL
663a1470 8407 || !toc_ref[(rel->r_offset + toc->output_offset) / 8])
102890f0
AM		 8408 continue;
8409 if (ok_tprel)
8410 {
8411 /* IE -> LE */
8412 tls_set = TLS_EXPLICIT;
8413 tls_clear = TLS_TPREL;
8414 break;
8415 }
8416 continue;
8417
8418 case R_PPC64_DTPMOD64:
8419 if (pass == 0
8420 || sec != toc
8421 || toc_ref == NULL
663a1470 8422 || !toc_ref[(rel->r_offset + toc->output_offset) / 8])
102890f0
AM		 8423 continue;
8424 if (rel + 1 < relend
8425 && (rel[1].r_info
8426 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
8427 && rel[1].r_offset == rel->r_offset + 8)
8428 {
8429 if (ok_tprel)
8430 /* GD -> LE */
8431 tls_set = TLS_EXPLICIT | TLS_GD;
8432 else
8433 /* GD -> IE */
8434 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
8435 tls_clear = TLS_GD;
8436 }
8437 else
8438 {
8439 if (!is_local)
8440 continue;
8441
8442 /* LD -> LE */
8443 tls_set = TLS_EXPLICIT;
8444 tls_clear = TLS_LD;
8445 }
8446 break;
8447
8448 default:
8449 continue;
8450 }
8451
8452 if (pass == 0)
8453 {
727fc41e
AM		 8454 if (!expecting_tls_get_addr
8455 || !sec->has_tls_get_addr_call)
102890f0
AM		 8456 continue;
8457
3a71aa26
AM		 8458 if (rel + 1 < relend
8459 && branch_reloc_hash_match (ibfd, rel + 1,
8460 htab->tls_get_addr,
8461 htab->tls_get_addr_fd))
102890f0 8462 {
3a71aa26 8463 if (expecting_tls_get_addr == 2)
102890f0 8464 {
3a71aa26 8465 /* Check for toc tls entries. */
f961d9dd 8466 unsigned char *toc_tls;
3a71aa26
AM		 8467 int retval;
8468
8469 retval = get_tls_mask (&toc_tls, NULL, NULL,
8470 &locsyms,
8471 rel, ibfd);
8472 if (retval == 0)
8473 goto err_free_rel;
663a1470
AM		 8474 if (toc_tls != NULL)
8475 {
8476 if ((*toc_tls & (TLS_GD | TLS_LD)) != 0)
8477 found_tls_get_addr_arg = 1;
8478 if (retval > 1)
8479 toc_ref[toc_ref_index] = 1;
8480 }
102890f0 8481 }
3a71aa26 8482 continue;
102890f0
AM		 8483 }
8484
8485 if (expecting_tls_get_addr != 1)
8486 continue;
8487
8488 /* Uh oh, we didn't find the expected call. We
8489 could just mark this symbol to exclude it
8490 from tls optimization but it's safer to skip
663a1470 8491 the entire optimization. */
25f53a85 8492 info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
663a1470
AM		 8493 "TLS optimization disabled\n"),
8494 ibfd, sec, rel->r_offset);
8495 ret = TRUE;
8496 goto err_free_rel;
102890f0
AM		 8497 }
8498
85f7a9cb 8499 if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
102890f0
AM		 8500 {
8501 struct plt_entry *ent;
8502 for (ent = htab->tls_get_addr->elf.plt.plist;
8503 ent != NULL;
8504 ent = ent->next)
8505 if (ent->addend == 0)
411e1bfb 8506 {
102890f0 8507 if (ent->plt.refcount > 0)
30038c59 8508 {
102890f0
AM		 8509 ent->plt.refcount -= 1;
8510 expecting_tls_get_addr = 0;
30038c59 8511 }
102890f0 8512 break;
411e1bfb 8513 }
102890f0 8514 }
411e1bfb 8515
85f7a9cb 8516 if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL)
102890f0
AM		 8517 {
8518 struct plt_entry *ent;
8519 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
8520 ent != NULL;
8521 ent = ent->next)
8522 if (ent->addend == 0)
411e1bfb 8523 {
102890f0
AM		 8524 if (ent->plt.refcount > 0)
8525 ent->plt.refcount -= 1;
8526 break;
411e1bfb 8527 }
102890f0 8528 }
411e1bfb 8529
102890f0 8530 if (tls_clear == 0)
30038c59
AM		 8531 continue;
8532
102890f0
AM		 8533 if ((tls_set & TLS_EXPLICIT) == 0)
8534 {
8535 struct got_entry *ent;
411e1bfb 8536
102890f0
AM		 8537 /* Adjust got entry for this reloc. */
8538 if (h != NULL)
8539 ent = h->got.glist;
8540 else
8541 ent = elf_local_got_ents (ibfd)[r_symndx];
411e1bfb 8542
102890f0
AM		 8543 for (; ent != NULL; ent = ent->next)
8544 if (ent->addend == rel->r_addend
8545 && ent->owner == ibfd
8546 && ent->tls_type == tls_type)
8547 break;
8548 if (ent == NULL)
8549 abort ();
411e1bfb 8550
102890f0
AM		 8551 if (tls_set == 0)
8552 {
8553 /* We managed to get rid of a got entry. */
8554 if (ent->got.refcount > 0)
8555 ent->got.refcount -= 1;
8556 }
8557 }
8558 else
8559 {
8560 /* If we got rid of a DTPMOD/DTPREL reloc pair then
8561 we'll lose one or two dyn relocs. */
8562 if (!dec_dynrel_count (rel->r_info, sec, info,
19e08130 8563 NULL, h, sym))
102890f0 8564 return FALSE;
411e1bfb 8565
102890f0
AM		 8566 if (tls_set == (TLS_EXPLICIT | TLS_GD))
8567 {
8568 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
19e08130 8569 NULL, h, sym))
102890f0
AM		 8570 return FALSE;
8571 }
8572 }
411e1bfb 8573
102890f0
AM		 8574 *tls_mask |= tls_set;
8575 *tls_mask &= ~tls_clear;
8576 }
8c1d1bb8 8577
102890f0
AM		 8578 if (elf_section_data (sec)->relocs != relstart)
8579 free (relstart);
8580 }
411e1bfb 8581
663a1470
AM		 8582 if (locsyms != NULL
8583 && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms))
8584 {
8585 if (!info->keep_memory)
8586 free (locsyms);
8587 else
8588 elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms;
8589 }
8590 }
411e1bfb 8591
663a1470
AM		 8592 if (toc_ref != NULL)
8593 free (toc_ref);
b34976b6 8594 return TRUE;
1e2f5b6e 8595}
b34976b6 8596
c5614fa4
AM		 8597/* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
8598 the values of any global symbols in a toc section that has been
8599 edited. Globals in toc sections should be a rarity, so this function
8600 sets a flag if any are found in toc sections other than the one just
8601 edited, so that futher hash table traversals can be avoided. */
8602
8603struct adjust_toc_info
8604{
8605 asection *toc;
8606 unsigned long *skip;
8607 bfd_boolean global_toc_syms;
8608};
8609
ba761f19
AM		 8610enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 };
8611
c5614fa4
AM		 8612static bfd_boolean
8613adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
8614{
8615 struct ppc_link_hash_entry *eh;
8616 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
854b41e7 8617 unsigned long i;
c5614fa4 8618
c5614fa4
AM		 8619 if (h->root.type != bfd_link_hash_defined
8620 && h->root.type != bfd_link_hash_defweak)
8621 return TRUE;
8622
8623 eh = (struct ppc_link_hash_entry *) h;
8624 if (eh->adjust_done)
8625 return TRUE;
8626
8627 if (eh->elf.root.u.def.section == toc_inf->toc)
8628 {
854b41e7
AM		 8629 if (eh->elf.root.u.def.value > toc_inf->toc->rawsize)
8630 i = toc_inf->toc->rawsize >> 3;
c5614fa4 8631 else
854b41e7
AM		 8632 i = eh->elf.root.u.def.value >> 3;
8633
ba761f19 8634 if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0)
c5614fa4
AM		 8635 {
8636 (*_bfd_error_handler)
854b41e7
AM		 8637 (_("%s defined on removed toc entry"), eh->elf.root.root.string);
8638 do
8639 ++i;
ba761f19 8640 while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0);
854b41e7 8641 eh->elf.root.u.def.value = (bfd_vma) i << 3;
c5614fa4 8642 }
854b41e7
AM		 8643
8644 eh->elf.root.u.def.value -= toc_inf->skip[i];
c5614fa4
AM		 8645 eh->adjust_done = 1;
8646 }
8647 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
8648 toc_inf->global_toc_syms = TRUE;
8649
8650 return TRUE;
8651}
8652
560c8763
AM		 8653/* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */
8654
8655static bfd_boolean
8656ok_lo_toc_insn (unsigned int insn)
8657{
8658 return ((insn & (0x3f << 26)) == 14u << 26 /* addi */
8659 || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
8660 || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
8661 || (insn & (0x3f << 26)) == 36u << 26 /* stw */
8662 || (insn & (0x3f << 26)) == 38u << 26 /* stb */
8663 || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
8664 || (insn & (0x3f << 26)) == 42u << 26 /* lha */
8665 || (insn & (0x3f << 26)) == 44u << 26 /* sth */
8666 || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
8667 || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
8668 || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
8669 || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
8670 || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
8671 || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
8672 || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
8673 && (insn & 3) != 1)
8674 || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
8675 && ((insn & 3) == 0 || (insn & 3) == 3))
8676 || (insn & (0x3f << 26)) == 12u << 26 /* addic */);
8677}
8678
c5614fa4
AM		 8679/* Examine all relocs referencing .toc sections in order to remove
8680 unused .toc entries. */
8681
8682bfd_boolean
33c0ec9d 8683ppc64_elf_edit_toc (struct bfd_link_info *info)
c5614fa4
AM		 8684{
8685 bfd *ibfd;
8686 struct adjust_toc_info toc_inf;
67f0cbdb 8687 struct ppc_link_hash_table *htab = ppc_hash_table (info);
c5614fa4 8688
67f0cbdb 8689 htab->do_toc_opt = 1;
c5614fa4 8690 toc_inf.global_toc_syms = TRUE;
c72f2fb2 8691 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
c5614fa4
AM		 8692 {
8693 asection *toc, *sec;
8694 Elf_Internal_Shdr *symtab_hdr;
8695 Elf_Internal_Sym *local_syms;
425b145b 8696 Elf_Internal_Rela *relstart, *rel, *toc_relocs;
c5614fa4
AM		 8697 unsigned long *skip, *drop;
8698 unsigned char *used;
8699 unsigned char *keep, last, some_unused;
8700
854b41e7
AM		 8701 if (!is_ppc64_elf (ibfd))
8702 continue;
8703
c5614fa4
AM		 8704 toc = bfd_get_section_by_name (ibfd, ".toc");
8705 if (toc == NULL
92b7a70f 8706 || toc->size == 0
dbaa2011
AM		 8707 || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS
8708 || discarded_section (toc))
c5614fa4
AM		 8709 continue;
8710
425b145b 8711 toc_relocs = NULL;
c5614fa4 8712 local_syms = NULL;
0ffa91dd 8713 symtab_hdr = &elf_symtab_hdr (ibfd);
c5614fa4
AM		 8714
8715 /* Look at sections dropped from the final link. */
8716 skip = NULL;
8717 relstart = NULL;
8718 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8719 {
8720 if (sec->reloc_count == 0
dbaa2011 8721 || !discarded_section (sec)
c5614fa4
AM		 8722 || get_opd_info (sec)
8723 || (sec->flags & SEC_ALLOC) == 0
8724 || (sec->flags & SEC_DEBUGGING) != 0)
8725 continue;
8726
8727 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
8728 if (relstart == NULL)
8729 goto error_ret;
8730
8731 /* Run through the relocs to see which toc entries might be
8732 unused. */
8733 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8734 {
8735 enum elf_ppc64_reloc_type r_type;
8736 unsigned long r_symndx;
8737 asection *sym_sec;
8738 struct elf_link_hash_entry *h;
8739 Elf_Internal_Sym *sym;
8740 bfd_vma val;
8741
8742 r_type = ELF64_R_TYPE (rel->r_info);
8743 switch (r_type)
8744 {
8745 default:
8746 continue;
8747
8748 case R_PPC64_TOC16:
8749 case R_PPC64_TOC16_LO:
8750 case R_PPC64_TOC16_HI:
8751 case R_PPC64_TOC16_HA:
8752 case R_PPC64_TOC16_DS:
8753 case R_PPC64_TOC16_LO_DS:
8754 break;
8755 }
8756
8757 r_symndx = ELF64_R_SYM (rel->r_info);
8758 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8759 r_symndx, ibfd))
8760 goto error_ret;
8761
8762 if (sym_sec != toc)
8763 continue;
8764
8765 if (h != NULL)
8766 val = h->root.u.def.value;
8767 else
8768 val = sym->st_value;
8769 val += rel->r_addend;
8770
8771 if (val >= toc->size)
8772 continue;
8773
8774 /* Anything in the toc ought to be aligned to 8 bytes.
8775 If not, don't mark as unused. */
8776 if (val & 7)
8777 continue;
8778
8779 if (skip == NULL)
8780 {
854b41e7 8781 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8);
c5614fa4
AM		 8782 if (skip == NULL)
8783 goto error_ret;
8784 }
8785
ba761f19 8786 skip[val >> 3] = ref_from_discarded;
c5614fa4
AM		 8787 }
8788
8789 if (elf_section_data (sec)->relocs != relstart)
8790 free (relstart);
8791 }
8792
ba761f19
AM		 8793 /* For largetoc loads of address constants, we can convert
8794 . addis rx,2,addr@got@ha
8795 . ld ry,addr@got@l(rx)
8796 to
8797 . addis rx,2,addr@toc@ha
8798 . addi ry,rx,addr@toc@l
8799 when addr is within 2G of the toc pointer. This then means
8800 that the word storing "addr" in the toc is no longer needed. */
68ffbac6 8801
ba761f19
AM		 8802 if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc
8803 && toc->output_section->rawsize < (bfd_vma) 1 << 31
8804 && toc->reloc_count != 0)
8805 {
8806 /* Read toc relocs. */
425b145b
AM		 8807 toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
8808 info->keep_memory);
8809 if (toc_relocs == NULL)
ba761f19
AM		 8810 goto error_ret;
8811
425b145b 8812 for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel)
ba761f19
AM		 8813 {
8814 enum elf_ppc64_reloc_type r_type;
8815 unsigned long r_symndx;
8816 asection *sym_sec;
8817 struct elf_link_hash_entry *h;
8818 Elf_Internal_Sym *sym;
8819 bfd_vma val, addr;
8820
8821 r_type = ELF64_R_TYPE (rel->r_info);
8822 if (r_type != R_PPC64_ADDR64)
8823 continue;
8824
8825 r_symndx = ELF64_R_SYM (rel->r_info);
8826 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8827 r_symndx, ibfd))
8828 goto error_ret;
8829
425b145b 8830 if (sym_sec == NULL
dbaa2011 8831 || discarded_section (sym_sec))
425b145b
AM		 8832 continue;
8833
afe397ea 8834 if (!SYMBOL_REFERENCES_LOCAL (info, h))
ba761f19
AM		 8835 continue;
8836
8837 if (h != NULL)
bddc25c9
AM		 8838 {
8839 if (h->type == STT_GNU_IFUNC)
8840 continue;
8841 val = h->root.u.def.value;
8842 }
ba761f19 8843 else
bddc25c9
AM		 8844 {
8845 if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
8846 continue;
8847 val = sym->st_value;
8848 }
ba761f19
AM		 8849 val += rel->r_addend;
8850 val += sym_sec->output_section->vma + sym_sec->output_offset;
8851
8852 /* We don't yet know the exact toc pointer value, but we
8853 know it will be somewhere in the toc section. Don't
8854 optimize if the difference from any possible toc
8855 pointer is outside [ff..f80008000, 7fff7fff]. */
8856 addr = toc->output_section->vma + TOC_BASE_OFF;
8857 if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32)
8858 continue;
8859
8860 addr = toc->output_section->vma + toc->output_section->rawsize;
8861 if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32)
8862 continue;
8863
8864 if (skip == NULL)
8865 {
8866 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8);
8867 if (skip == NULL)
8868 goto error_ret;
8869 }
8870
8871 skip[rel->r_offset >> 3]
425b145b 8872 |= can_optimize | ((rel - toc_relocs) << 2);
ba761f19 8873 }
ba761f19
AM		 8874 }
8875
c5614fa4
AM		 8876 if (skip == NULL)
8877 continue;
8878
8879 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
8880 if (used == NULL)
8881 {
8882 error_ret:
8883 if (local_syms != NULL
8884 && symtab_hdr->contents != (unsigned char *) local_syms)
8885 free (local_syms);
8886 if (sec != NULL
8887 && relstart != NULL
8888 && elf_section_data (sec)->relocs != relstart)
8889 free (relstart);
425b145b
AM		 8890 if (toc_relocs != NULL
8891 && elf_section_data (toc)->relocs != toc_relocs)
8892 free (toc_relocs);
c5614fa4
AM		 8893 if (skip != NULL)
8894 free (skip);
8895 return FALSE;
8896 }
8897
30038c59
AM		 8898 /* Now check all kept sections that might reference the toc.
8899 Check the toc itself last. */
8900 for (sec = (ibfd->sections == toc && toc->next ? toc->next
8901 : ibfd->sections);
c5614fa4 8902 sec != NULL;
c5614fa4 8903 sec = (sec == toc ? NULL
c5614fa4 8904 : sec->next == NULL ? toc
30038c59 8905 : sec->next == toc && toc->next ? toc->next
c5614fa4
AM		 8906 : sec->next))
8907 {
8908 int repeat;
8909
8910 if (sec->reloc_count == 0
dbaa2011 8911 || discarded_section (sec)
c5614fa4
AM		 8912 || get_opd_info (sec)
8913 || (sec->flags & SEC_ALLOC) == 0
8914 || (sec->flags & SEC_DEBUGGING) != 0)
8915 continue;
8916
854b41e7
AM		 8917 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
8918 info->keep_memory);
c5614fa4 8919 if (relstart == NULL)
2915c55b
JK		 8920 {
8921 free (used);
8922 goto error_ret;
8923 }
c5614fa4
AM		 8924
8925 /* Mark toc entries referenced as used. */
c5614fa4 8926 do
d4f1ee75
AM		 8927 {
8928 repeat = 0;
8929 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8930 {
8931 enum elf_ppc64_reloc_type r_type;
8932 unsigned long r_symndx;
8933 asection *sym_sec;
8934 struct elf_link_hash_entry *h;
8935 Elf_Internal_Sym *sym;
8936 bfd_vma val;
8937 enum {no_check, check_lo, check_ha} insn_check;
98528052 8938
d4f1ee75
AM		 8939 r_type = ELF64_R_TYPE (rel->r_info);
8940 switch (r_type)
8941 {
8942 default:
8943 insn_check = no_check;
8944 break;
98528052 8945
d4f1ee75
AM		 8946 case R_PPC64_GOT_TLSLD16_HA:
8947 case R_PPC64_GOT_TLSGD16_HA:
8948 case R_PPC64_GOT_TPREL16_HA:
8949 case R_PPC64_GOT_DTPREL16_HA:
8950 case R_PPC64_GOT16_HA:
8951 case R_PPC64_TOC16_HA:
8952 insn_check = check_ha;
8953 break;
98528052 8954
d4f1ee75
AM		 8955 case R_PPC64_GOT_TLSLD16_LO:
8956 case R_PPC64_GOT_TLSGD16_LO:
8957 case R_PPC64_GOT_TPREL16_LO_DS:
8958 case R_PPC64_GOT_DTPREL16_LO_DS:
8959 case R_PPC64_GOT16_LO:
8960 case R_PPC64_GOT16_LO_DS:
8961 case R_PPC64_TOC16_LO:
8962 case R_PPC64_TOC16_LO_DS:
8963 insn_check = check_lo;
8964 break;
8965 }
560c8763 8966
d4f1ee75
AM		 8967 if (insn_check != no_check)
8968 {
8969 bfd_vma off = rel->r_offset & ~3;
8970 unsigned char buf[4];
8971 unsigned int insn;
c5614fa4 8972
d4f1ee75
AM		 8973 if (!bfd_get_section_contents (ibfd, sec, buf, off, 4))
8974 {
8975 free (used);
8976 goto error_ret;
8977 }
8978 insn = bfd_get_32 (ibfd, buf);
8979 if (insn_check == check_lo
8980 ? !ok_lo_toc_insn (insn)
8981 : ((insn & ((0x3f << 26) | 0x1f << 16))
8982 != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */))
8983 {
8984 char str[12];
8985
8986 ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1;
8987 sprintf (str, "%#08x", insn);
8988 info->callbacks->einfo
8989 (_("%P: %H: toc optimization is not supported for"
8990 " %s instruction.\n"),
8991 ibfd, sec, rel->r_offset & ~3, str);
8992 }
8993 }
c5614fa4 8994
d4f1ee75
AM		 8995 switch (r_type)
8996 {
8997 case R_PPC64_TOC16:
8998 case R_PPC64_TOC16_LO:
8999 case R_PPC64_TOC16_HI:
9000 case R_PPC64_TOC16_HA:
9001 case R_PPC64_TOC16_DS:
9002 case R_PPC64_TOC16_LO_DS:
9003 /* In case we're taking addresses of toc entries. */
9004 case R_PPC64_ADDR64:
9005 break;
c5614fa4 9006
d4f1ee75
AM		 9007 default:
9008 continue;
9009 }
c5614fa4 9010
d4f1ee75
AM		 9011 r_symndx = ELF64_R_SYM (rel->r_info);
9012 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9013 r_symndx, ibfd))
9014 {
9015 free (used);
9016 goto error_ret;
9017 }
c5614fa4 9018
d4f1ee75
AM		 9019 if (sym_sec != toc)
9020 continue;
c5614fa4 9021
d4f1ee75
AM		 9022 if (h != NULL)
9023 val = h->root.u.def.value;
9024 else
9025 val = sym->st_value;
9026 val += rel->r_addend;
ba761f19 9027
d4f1ee75
AM		 9028 if (val >= toc->size)
9029 continue;
ba761f19 9030
d4f1ee75
AM		 9031 if ((skip[val >> 3] & can_optimize) != 0)
9032 {
9033 bfd_vma off;
9034 unsigned char opc;
9035
9036 switch (r_type)
9037 {
9038 case R_PPC64_TOC16_HA:
ba761f19 9039 break;
ba761f19 9040
d4f1ee75
AM		 9041 case R_PPC64_TOC16_LO_DS:
9042 off = rel->r_offset;
9043 off += (bfd_big_endian (ibfd) ? -2 : 3);
9044 if (!bfd_get_section_contents (ibfd, sec, &opc,
9045 off, 1))
9046 {
9047 free (used);
9048 goto error_ret;
9049 }
9050 if ((opc & (0x3f << 2)) == (58u << 2))
9051 break;
9052 /* Fall thru */
ba761f19 9053
d4f1ee75
AM		 9054 default:
9055 /* Wrong sort of reloc, or not a ld. We may
9056 as well clear ref_from_discarded too. */
9057 skip[val >> 3] = 0;
9058 }
9059 }
9060
9061 if (sec != toc)
9062 used[val >> 3] = 1;
9063 /* For the toc section, we only mark as used if this
9064 entry itself isn't unused. */
9065 else if ((used[rel->r_offset >> 3]
9066 || !(skip[rel->r_offset >> 3] & ref_from_discarded))
9067 && !used[val >> 3])
9068 {
9069 /* Do all the relocs again, to catch reference
9070 chains. */
9071 repeat = 1;
9072 used[val >> 3] = 1;
9073 }
9074 }
9075 }
c5614fa4 9076 while (repeat);
854b41e7
AM		 9077
9078 if (elf_section_data (sec)->relocs != relstart)
9079 free (relstart);
c5614fa4
AM		 9080 }
9081
9082 /* Merge the used and skip arrays. Assume that TOC
9083 doublewords not appearing as either used or unused belong
9084 to to an entry more than one doubleword in size. */
9085 for (drop = skip, keep = used, last = 0, some_unused = 0;
9086 drop < skip + (toc->size + 7) / 8;
9087 ++drop, ++keep)
9088 {
9089 if (*keep)
9090 {
ba761f19
AM		 9091 *drop &= ~ref_from_discarded;
9092 if ((*drop & can_optimize) != 0)
9093 some_unused = 1;
c5614fa4
AM		 9094 last = 0;
9095 }
b140b010 9096 else if ((*drop & ref_from_discarded) != 0)
c5614fa4
AM		 9097 {
9098 some_unused = 1;
ba761f19 9099 last = ref_from_discarded;
c5614fa4
AM		 9100 }
9101 else
9102 *drop = last;
9103 }
9104
9105 free (used);
9106
9107 if (some_unused)
9108 {
9109 bfd_byte *contents, *src;
9110 unsigned long off;
d62b3684 9111 Elf_Internal_Sym *sym;
ba761f19 9112 bfd_boolean local_toc_syms = FALSE;
c5614fa4
AM		 9113
9114 /* Shuffle the toc contents, and at the same time convert the
9115 skip array from booleans into offsets. */
9116 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
9117 goto error_ret;
9118
9119 elf_section_data (toc)->this_hdr.contents = contents;
9120
9121 for (src = contents, off = 0, drop = skip;
9122 src < contents + toc->size;
9123 src += 8, ++drop)
9124 {
ba761f19
AM		 9125 if ((*drop & (can_optimize | ref_from_discarded)) != 0)
9126 off += 8;
c5614fa4
AM		 9127 else if (off != 0)
9128 {
9129 *drop = off;
9130 memcpy (src - off, src, 8);
9131 }
9132 }
854b41e7 9133 *drop = off;
c5614fa4
AM		 9134 toc->rawsize = toc->size;
9135 toc->size = src - contents - off;
9136
ba761f19
AM		 9137 /* Adjust addends for relocs against the toc section sym,
9138 and optimize any accesses we can. */
c5614fa4
AM		 9139 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
9140 {
9141 if (sec->reloc_count == 0
dbaa2011 9142 || discarded_section (sec))
c5614fa4
AM		 9143 continue;
9144
9145 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
854b41e7 9146 info->keep_memory);
c5614fa4
AM		 9147 if (relstart == NULL)
9148 goto error_ret;
9149
9150 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
9151 {
9152 enum elf_ppc64_reloc_type r_type;
9153 unsigned long r_symndx;
9154 asection *sym_sec;
9155 struct elf_link_hash_entry *h;
854b41e7 9156 bfd_vma val;
c5614fa4
AM		 9157
9158 r_type = ELF64_R_TYPE (rel->r_info);
9159 switch (r_type)
9160 {
9161 default:
9162 continue;
9163
9164 case R_PPC64_TOC16:
9165 case R_PPC64_TOC16_LO:
9166 case R_PPC64_TOC16_HI:
9167 case R_PPC64_TOC16_HA:
9168 case R_PPC64_TOC16_DS:
9169 case R_PPC64_TOC16_LO_DS:
9170 case R_PPC64_ADDR64:
9171 break;
9172 }
9173
9174 r_symndx = ELF64_R_SYM (rel->r_info);
9175 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9176 r_symndx, ibfd))
9177 goto error_ret;
9178
ba761f19 9179 if (sym_sec != toc)
c5614fa4
AM		 9180 continue;
9181
ba761f19
AM		 9182 if (h != NULL)
9183 val = h->root.u.def.value;
9184 else
9185 {
9186 val = sym->st_value;
9187 if (val != 0)
9188 local_toc_syms = TRUE;
9189 }
9190
9191 val += rel->r_addend;
854b41e7
AM		 9192
9193 if (val > toc->rawsize)
9194 val = toc->rawsize;
ba761f19
AM		 9195 else if ((skip[val >> 3] & ref_from_discarded) != 0)
9196 continue;
9197 else if ((skip[val >> 3] & can_optimize) != 0)
9198 {
9199 Elf_Internal_Rela *tocrel
425b145b 9200 = toc_relocs + (skip[val >> 3] >> 2);
ba761f19
AM		 9201 unsigned long tsym = ELF64_R_SYM (tocrel->r_info);
9202
9203 switch (r_type)
9204 {
9205 case R_PPC64_TOC16_HA:
9206 rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA);
9207 break;
9208
9209 case R_PPC64_TOC16_LO_DS:
9210 rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT);
9211 break;
9212
9213 default:
28942f62
AM		 9214 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
9215 ppc_howto_init ();
b140b010 9216 info->callbacks->einfo
bc30df16 9217 (_("%P: %H: %s references "
b140b010
AM		 9218 "optimized away TOC entry\n"),
9219 ibfd, sec, rel->r_offset,
9220 ppc64_elf_howto_table[r_type]->name);
9221 bfd_set_error (bfd_error_bad_value);
9222 goto error_ret;
ba761f19
AM		 9223 }
9224 rel->r_addend = tocrel->r_addend;
9225 elf_section_data (sec)->relocs = relstart;
9226 continue;
9227 }
9228
9229 if (h != NULL || sym->st_value != 0)
9230 continue;
854b41e7
AM		 9231
9232 rel->r_addend -= skip[val >> 3];
9233 elf_section_data (sec)->relocs = relstart;
c5614fa4 9234 }
854b41e7
AM		 9235
9236 if (elf_section_data (sec)->relocs != relstart)
9237 free (relstart);
c5614fa4
AM		 9238 }
9239
9240 /* We shouldn't have local or global symbols defined in the TOC,
9241 but handle them anyway. */
df22d223
AM		 9242 if (local_syms != NULL)
9243 for (sym = local_syms;
9244 sym < local_syms + symtab_hdr->sh_info;
9245 ++sym)
9246 if (sym->st_value != 0
9247 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
9248 {
9249 unsigned long i;
854b41e7 9250
df22d223
AM		 9251 if (sym->st_value > toc->rawsize)
9252 i = toc->rawsize >> 3;
9253 else
9254 i = sym->st_value >> 3;
854b41e7 9255
df22d223
AM		 9256 if ((skip[i] & (ref_from_discarded | can_optimize)) != 0)
9257 {
9258 if (local_toc_syms)
9259 (*_bfd_error_handler)
9260 (_("%s defined on removed toc entry"),
9261 bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL));
9262 do
9263 ++i;
9264 while ((skip[i] & (ref_from_discarded | can_optimize)));
9265 sym->st_value = (bfd_vma) i << 3;
9266 }
d62b3684 9267
df22d223
AM		 9268 sym->st_value -= skip[i];
9269 symtab_hdr->contents = (unsigned char *) local_syms;
9270 }
c5614fa4 9271
854b41e7 9272 /* Adjust any global syms defined in this toc input section. */
c5614fa4
AM		 9273 if (toc_inf.global_toc_syms)
9274 {
9275 toc_inf.toc = toc;
9276 toc_inf.skip = skip;
9277 toc_inf.global_toc_syms = FALSE;
9278 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
9279 &toc_inf);
9280 }
854b41e7
AM		 9281
9282 if (toc->reloc_count != 0)
9283 {
d4730f92 9284 Elf_Internal_Shdr *rel_hdr;
854b41e7
AM		 9285 Elf_Internal_Rela *wrel;
9286 bfd_size_type sz;
9287
854b41e7 9288 /* Remove unused toc relocs, and adjust those we keep. */
28be611c
AM		 9289 if (toc_relocs == NULL)
9290 toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
9291 info->keep_memory);
9292 if (toc_relocs == NULL)
9293 goto error_ret;
9294
425b145b
AM		 9295 wrel = toc_relocs;
9296 for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel)
ba761f19
AM		 9297 if ((skip[rel->r_offset >> 3]
9298 & (ref_from_discarded | can_optimize)) == 0)
854b41e7
AM		 9299 {
9300 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
9301 wrel->r_info = rel->r_info;
9302 wrel->r_addend = rel->r_addend;
9303 ++wrel;
9304 }
9305 else if (!dec_dynrel_count (rel->r_info, toc, info,
9306 &local_syms, NULL, NULL))
9307 goto error_ret;
9308
425b145b
AM		 9309 elf_section_data (toc)->relocs = toc_relocs;
9310 toc->reloc_count = wrel - toc_relocs;
d4730f92
BS		 9311 rel_hdr = _bfd_elf_single_rel_hdr (toc);
9312 sz = rel_hdr->sh_entsize;
9313 rel_hdr->sh_size = toc->reloc_count * sz;
854b41e7 9314 }
c5614fa4 9315 }
28be611c
AM		 9316 else if (toc_relocs != NULL
9317 && elf_section_data (toc)->relocs != toc_relocs)
425b145b 9318 free (toc_relocs);
c5614fa4
AM		 9319
9320 if (local_syms != NULL
9321 && symtab_hdr->contents != (unsigned char *) local_syms)
9322 {
9323 if (!info->keep_memory)
9324 free (local_syms);
9325 else
9326 symtab_hdr->contents = (unsigned char *) local_syms;
9327 }
9328 free (skip);
9329 }
9330
9331 return TRUE;
9332}
9333
1bbe0902
AM		 9334/* Return true iff input section I references the TOC using
9335 instructions limited to +/-32k offsets. */
9336
9337bfd_boolean
9338ppc64_elf_has_small_toc_reloc (asection *i)
9339{
9340 return (is_ppc64_elf (i->owner)
9341 && ppc64_elf_tdata (i->owner)->has_small_toc_reloc);
9342}
9343
927be08e
AM		 9344/* Allocate space for one GOT entry. */
9345
9346static void
9347allocate_got (struct elf_link_hash_entry *h,
9348 struct bfd_link_info *info,
9349 struct got_entry *gent)
9350{
9351 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9352 bfd_boolean dyn;
9353 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
9354 int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)
9355 ? 16 : 8);
9356 int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD
9357 ? 2 : 1) * sizeof (Elf64_External_Rela);
9358 asection *got = ppc64_elf_tdata (gent->owner)->got;
9359
9360 gent->got.offset = got->size;
9361 got->size += entsize;
9362
9363 dyn = htab->elf.dynamic_sections_created;
19e08130 9364 if (h->type == STT_GNU_IFUNC)
927be08e 9365 {
33e44f2e 9366 htab->elf.irelplt->size += rentsize;
19e08130 9367 htab->got_reli_size += rentsize;
927be08e 9368 }
19e08130
AM		 9369 else if ((info->shared
9370 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
9371 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
9372 || h->root.type != bfd_link_hash_undefweak))
927be08e 9373 {
19e08130 9374 asection *relgot = ppc64_elf_tdata (gent->owner)->relgot;
927be08e 9375 relgot->size += rentsize;
927be08e
AM		 9376 }
9377}
9378
7865406b
AM		 9379/* This function merges got entries in the same toc group. */
9380
9381static void
9382merge_got_entries (struct got_entry **pent)
9383{
9384 struct got_entry *ent, *ent2;
9385
9386 for (ent = *pent; ent != NULL; ent = ent->next)
9387 if (!ent->is_indirect)
9388 for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next)
9389 if (!ent2->is_indirect
9390 && ent2->addend == ent->addend
9391 && ent2->tls_type == ent->tls_type
9392 && elf_gp (ent2->owner) == elf_gp (ent->owner))
9393 {
9394 ent2->is_indirect = TRUE;
9395 ent2->got.ent = ent;
9396 }
9397}
9398
65f38f15
AM		 9399/* Allocate space in .plt, .got and associated reloc sections for
9400 dynamic relocs. */
5bd4f169 9401
b34976b6 9402static bfd_boolean
4ce794b7 9403allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 9404{
65f38f15
AM		 9405 struct bfd_link_info *info;
9406 struct ppc_link_hash_table *htab;
5bd4f169 9407 asection *s;
65f38f15 9408 struct ppc_link_hash_entry *eh;
6061a67d 9409 struct elf_dyn_relocs *p;
0b8bcf0d 9410 struct got_entry **pgent, *gent;
5bd4f169 9411
e92d460e 9412 if (h->root.type == bfd_link_hash_indirect)
b34976b6 9413 return TRUE;
5bd4f169 9414
65f38f15
AM		 9415 info = (struct bfd_link_info *) inf;
9416 htab = ppc_hash_table (info);
4dfe6ac6
NC		 9417 if (htab == NULL)
9418 return FALSE;
5bd4f169 9419
e054468f
AM		 9420 if ((htab->elf.dynamic_sections_created
9421 && h->dynindx != -1
9422 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
9423 || h->type == STT_GNU_IFUNC)
5bd4f169 9424 {
411e1bfb
AM		 9425 struct plt_entry *pent;
9426 bfd_boolean doneone = FALSE;
9427 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
9428 if (pent->plt.refcount > 0)
9429 {
25f23106
AM		 9430 if (!htab->elf.dynamic_sections_created
9431 || h->dynindx == -1)
e054468f 9432 {
33e44f2e 9433 s = htab->elf.iplt;
e054468f 9434 pent->plt.offset = s->size;
b9e5796b 9435 s->size += PLT_ENTRY_SIZE (htab);
33e44f2e 9436 s = htab->elf.irelplt;
e054468f
AM		 9437 }
9438 else
9439 {
9440 /* If this is the first .plt entry, make room for the special
9441 first entry. */
33e44f2e 9442 s = htab->elf.splt;
e054468f 9443 if (s->size == 0)
b9e5796b 9444 s->size += PLT_INITIAL_ENTRY_SIZE (htab);
e054468f
AM		 9445
9446 pent->plt.offset = s->size;
9447
9448 /* Make room for this entry. */
b9e5796b 9449 s->size += PLT_ENTRY_SIZE (htab);
e054468f
AM		 9450
9451 /* Make room for the .glink code. */
9452 s = htab->glink;
9453 if (s->size == 0)
9454 s->size += GLINK_CALL_STUB_SIZE;
b9e5796b
AM		 9455 if (htab->opd_abi)
9456 {
9457 /* We need bigger stubs past index 32767. */
9458 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
9459 s->size += 4;
9460 s->size += 2*4;
9461 }
9462 else
e054468f 9463 s->size += 4;
e054468f
AM		 9464
9465 /* We also need to make an entry in the .rela.plt section. */
33e44f2e 9466 s = htab->elf.srelplt;
e054468f 9467 }
eea6121a 9468 s->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 9469 doneone = TRUE;
9470 }
9471 else
9472 pent->plt.offset = (bfd_vma) -1;
9473 if (!doneone)
65f38f15 9474 {
411e1bfb 9475 h->plt.plist = NULL;
f5385ebf 9476 h->needs_plt = 0;
65f38f15
AM		 9477 }
9478 }
9479 else
9480 {
411e1bfb 9481 h->plt.plist = NULL;
f5385ebf 9482 h->needs_plt = 0;
65f38f15
AM		 9483 }
9484
951fd09b
AM		 9485 eh = (struct ppc_link_hash_entry *) h;
9486 /* Run through the TLS GD got entries first if we're changing them
9487 to TPREL. */
e7b938ca 9488 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 9489 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9490 if (gent->got.refcount > 0
9491 && (gent->tls_type & TLS_GD) != 0)
9492 {
9493 /* This was a GD entry that has been converted to TPREL. If
9494 there happens to be a TPREL entry we can use that one. */
9495 struct got_entry *ent;
9496 for (ent = h->got.glist; ent != NULL; ent = ent->next)
9497 if (ent->got.refcount > 0
9498 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 9499 && ent->addend == gent->addend
9500 && ent->owner == gent->owner)
951fd09b
AM		 9501 {
9502 gent->got.refcount = 0;
9503 break;
9504 }
9505
9506 /* If not, then we'll be using our own TPREL entry. */
9507 if (gent->got.refcount != 0)
9508 gent->tls_type = TLS_TLS | TLS_TPREL;
9509 }
9510
7865406b
AM		 9511 /* Remove any list entry that won't generate a word in the GOT before
9512 we call merge_got_entries. Otherwise we risk merging to empty
9513 entries. */
0b8bcf0d
AM		 9514 pgent = &h->got.glist;
9515 while ((gent = *pgent) != NULL)
411e1bfb 9516 if (gent->got.refcount > 0)
7865406b
AM		 9517 {
9518 if ((gent->tls_type & TLS_LD) != 0
9519 && !h->def_dynamic)
9520 {
9521 ppc64_tlsld_got (gent->owner)->got.refcount += 1;
9522 *pgent = gent->next;
9523 }
9524 else
9525 pgent = &gent->next;
9526 }
9527 else
9528 *pgent = gent->next;
9529
9530 if (!htab->do_multi_toc)
9531 merge_got_entries (&h->got.glist);
9532
9533 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9534 if (!gent->is_indirect)
411e1bfb
AM		 9535 {
9536 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 9537 Undefined weak syms won't yet be marked as dynamic,
9538 nor will all TLS symbols. */
411e1bfb 9539 if (h->dynindx == -1
b099ab9f 9540 && !h->forced_local
25f23106 9541 && h->type != STT_GNU_IFUNC
b099ab9f 9542 && htab->elf.dynamic_sections_created)
411e1bfb 9543 {
c152c796 9544 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM		 9545 return FALSE;
9546 }
65f38f15 9547
0c8d6e5c 9548 if (!is_ppc64_elf (gent->owner))
927be08e 9549 abort ();
0ffa91dd 9550
927be08e 9551 allocate_got (h, info, gent);
411e1bfb 9552 }
65f38f15 9553
b099ab9f 9554 if (eh->dyn_relocs == NULL
25f23106 9555 || (!htab->elf.dynamic_sections_created
14b5f73f 9556 && h->type != STT_GNU_IFUNC))
b34976b6 9557 return TRUE;
65f38f15
AM		 9558
9559 /* In the shared -Bsymbolic case, discard space allocated for
9560 dynamic pc-relative relocs against symbols which turn out to be
9561 defined in regular objects. For the normal shared case, discard
9562 space for relocs that have become local due to symbol visibility
9563 changes. */
9564
9565 if (info->shared)
9566 {
9c7a29a3 9567 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 9568 or certain REL relocs (see must_be_dyn_reloc) that can be
9c7a29a3
AM		 9569 generated via assembly. We want calls to protected symbols to
9570 resolve directly to the function rather than going via the plt.
9571 If people want function pointer comparisons to work as expected
9572 then they should avoid writing weird assembly. */
09695f56 9573 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15 9574 {
6061a67d 9575 struct elf_dyn_relocs **pp;
65f38f15
AM		 9576
9577 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 9578 {
65f38f15
AM		 9579 p->count -= p->pc_count;
9580 p->pc_count = 0;
9581 if (p->count == 0)
9582 *pp = p->next;
9583 else
9584 pp = &p->next;
5bd4f169 9585 }
65f38f15 9586 }
4e795f50
AM		 9587
9588 /* Also discard relocs on undefined weak syms with non-default
9589 visibility. */
cab87ef9
AM		 9590 if (eh->dyn_relocs != NULL
9591 && h->root.type == bfd_link_hash_undefweak)
dfbb6ac9
AM		 9592 {
9593 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
9594 eh->dyn_relocs = NULL;
9595
9596 /* Make sure this symbol is output as a dynamic symbol.
9597 Undefined weak syms won't yet be marked as dynamic. */
9598 else if (h->dynindx == -1
9599 && !h->forced_local)
9600 {
9601 if (! bfd_elf_link_record_dynamic_symbol (info, h))
9602 return FALSE;
9603 }
9604 }
65f38f15 9605 }
25f23106
AM		 9606 else if (h->type == STT_GNU_IFUNC)
9607 {
9608 if (!h->non_got_ref)
9609 eh->dyn_relocs = NULL;
9610 }
f4656909 9611 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 9612 {
9613 /* For the non-shared case, discard space for relocs against
9614 symbols which turn out to need copy relocs or are not
9615 dynamic. */
9616
f5385ebf 9617 if (!h->non_got_ref
f5385ebf 9618 && !h->def_regular)
65f38f15
AM		 9619 {
9620 /* Make sure this symbol is output as a dynamic symbol.
9621 Undefined weak syms won't yet be marked as dynamic. */
9622 if (h->dynindx == -1
f5385ebf 9623 && !h->forced_local)
65f38f15 9624 {
c152c796 9625 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 9626 return FALSE;
65f38f15
AM		 9627 }
9628
9629 /* If that succeeded, we know we'll be keeping all the
9630 relocs. */
9631 if (h->dynindx != -1)
9632 goto keep;
9633 }
9634
9635 eh->dyn_relocs = NULL;
9636
ec338859 9637 keep: ;
65f38f15
AM		 9638 }
9639
9640 /* Finally, allocate space. */
9641 for (p = eh->dyn_relocs; p != NULL; p = p->next)
9642 {
9643 asection *sreloc = elf_section_data (p->sec)->sreloc;
19e08130 9644 if (eh->elf.type == STT_GNU_IFUNC)
33e44f2e 9645 sreloc = htab->elf.irelplt;
eea6121a 9646 sreloc->size += p->count * sizeof (Elf64_External_Rela);
65f38f15
AM		 9647 }
9648
b34976b6 9649 return TRUE;
65f38f15
AM		 9650}
9651
a345bc8d
AM		 9652/* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections
9653 to set up space for global entry stubs. These are put in glink,
9654 after the branch table. */
65f38f15 9655
b34976b6 9656static bfd_boolean
a345bc8d 9657size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf)
65f38f15 9658{
a345bc8d
AM		 9659 struct bfd_link_info *info;
9660 struct ppc_link_hash_table *htab;
9661 struct plt_entry *pent;
9662 asection *s;
65f38f15 9663
a345bc8d
AM		 9664 if (h->root.type == bfd_link_hash_indirect)
9665 return TRUE;
65f38f15 9666
a345bc8d
AM		 9667 if (!h->pointer_equality_needed)
9668 return TRUE;
65f38f15 9669
a345bc8d
AM		 9670 if (h->def_regular)
9671 return TRUE;
65f38f15 9672
a345bc8d
AM		 9673 info = inf;
9674 htab = ppc_hash_table (info);
9675 if (htab == NULL)
9676 return FALSE;
9677
9678 s = htab->glink;
9679 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
9680 if (pent->plt.offset != (bfd_vma) -1
9681 && pent->addend == 0)
9682 {
afe397ea
AM		 9683 /* For ELFv2, if this symbol is not defined in a regular file
9684 and we are not generating a shared library or pie, then we
9685 need to define the symbol in the executable on a call stub.
9686 This is to avoid text relocations. */
a345bc8d 9687 s->size = (s->size + 15) & -16;
afe397ea
AM		 9688 h->root.u.def.section = s;
9689 h->root.u.def.value = s->size;
a345bc8d
AM		 9690 s->size += 16;
9691 break;
9692 }
9693 return TRUE;
9694}
9695
9696/* Set DF_TEXTREL if we find any dynamic relocs that apply to
9697 read-only sections. */
9698
9699static bfd_boolean
9700maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
9701{
9702 if (h->root.type == bfd_link_hash_indirect)
9703 return TRUE;
9704
9705 if (readonly_dynrelocs (h))
9706 {
9707 ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
9708
9709 /* Not an error, just cut short the traversal. */
9710 return FALSE;
65f38f15 9711 }
b34976b6 9712 return TRUE;
65f38f15
AM		 9713}
9714
9715/* Set the sizes of the dynamic sections. */
9716
b34976b6 9717static bfd_boolean
ee67d69a 9718ppc64_elf_size_dynamic_sections (bfd *output_bfd,
4ce794b7 9719 struct bfd_link_info *info)
65f38f15
AM		 9720{
9721 struct ppc_link_hash_table *htab;
9722 bfd *dynobj;
9723 asection *s;
b34976b6 9724 bfd_boolean relocs;
65f38f15 9725 bfd *ibfd;
7865406b 9726 struct got_entry *first_tlsld;
65f38f15
AM		 9727
9728 htab = ppc_hash_table (info);
4dfe6ac6
NC		 9729 if (htab == NULL)
9730 return FALSE;
9731
65f38f15
AM		 9732 dynobj = htab->elf.dynobj;
9733 if (dynobj == NULL)
9734 abort ();
9735
9736 if (htab->elf.dynamic_sections_created)
9737 {
9738 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 9739 if (info->executable)
65f38f15 9740 {
3d4d4302 9741 s = bfd_get_linker_section (dynobj, ".interp");
65f38f15
AM		 9742 if (s == NULL)
9743 abort ();
eea6121a 9744 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM		 9745 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
9746 }
9747 }
9748
9749 /* Set up .got offsets for local syms, and space for local dynamic
9750 relocs. */
c72f2fb2 9751 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
65f38f15 9752 {
411e1bfb
AM		 9753 struct got_entry **lgot_ents;
9754 struct got_entry **end_lgot_ents;
e054468f
AM		 9755 struct plt_entry **local_plt;
9756 struct plt_entry **end_local_plt;
f961d9dd 9757 unsigned char *lgot_masks;
65f38f15
AM		 9758 bfd_size_type locsymcount;
9759 Elf_Internal_Shdr *symtab_hdr;
65f38f15 9760
0c8d6e5c 9761 if (!is_ppc64_elf (ibfd))
65f38f15
AM		 9762 continue;
9763
9764 for (s = ibfd->sections; s != NULL; s = s->next)
9765 {
19e08130 9766 struct ppc_dyn_relocs *p;
65f38f15 9767
6edfbbad 9768 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
65f38f15 9769 {
ec338859
AM		 9770 if (!bfd_is_abs_section (p->sec)
9771 && bfd_is_abs_section (p->sec->output_section))
9772 {
9773 /* Input section has been discarded, either because
9774 it is a copy of a linkonce section or due to
9775 linker script /DISCARD/, so we'll be discarding
9776 the relocs too. */
9777 }
248866a8 9778 else if (p->count != 0)
ec338859 9779 {
19e08130
AM		 9780 asection *srel = elf_section_data (p->sec)->sreloc;
9781 if (p->ifunc)
33e44f2e 9782 srel = htab->elf.irelplt;
eea6121a 9783 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 9784 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
9785 info->flags |= DF_TEXTREL;
ec338859 9786 }
65f38f15
AM		 9787 }
9788 }
9789
411e1bfb
AM		 9790 lgot_ents = elf_local_got_ents (ibfd);
9791 if (!lgot_ents)
65f38f15
AM		 9792 continue;
9793
0ffa91dd 9794 symtab_hdr = &elf_symtab_hdr (ibfd);
65f38f15 9795 locsymcount = symtab_hdr->sh_info;
411e1bfb 9796 end_lgot_ents = lgot_ents + locsymcount;
e054468f
AM		 9797 local_plt = (struct plt_entry **) end_lgot_ents;
9798 end_local_plt = local_plt + locsymcount;
f961d9dd 9799 lgot_masks = (unsigned char *) end_local_plt;
e717da7e 9800 s = ppc64_elf_tdata (ibfd)->got;
e7b938ca 9801 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 9802 {
0b8bcf0d 9803 struct got_entry **pent, *ent;
411e1bfb 9804
0b8bcf0d
AM		 9805 pent = lgot_ents;
9806 while ((ent = *pent) != NULL)
411e1bfb
AM		 9807 if (ent->got.refcount > 0)
9808 {
e7b938ca 9809 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 9810 {
927be08e 9811 ppc64_tlsld_got (ibfd)->got.refcount += 1;
0b8bcf0d 9812 *pent = ent->next;
411e1bfb
AM		 9813 }
9814 else
9815 {
19e08130
AM		 9816 unsigned int ent_size = 8;
9817 unsigned int rel_size = sizeof (Elf64_External_Rela);
9818
eea6121a 9819 ent->got.offset = s->size;
e7b938ca 9820 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
927be08e 9821 {
19e08130
AM		 9822 ent_size *= 2;
9823 rel_size *= 2;
9824 }
9825 s->size += ent_size;
9826 if ((*lgot_masks & PLT_IFUNC) != 0)
9827 {
33e44f2e 9828 htab->elf.irelplt->size += rel_size;
19e08130
AM		 9829 htab->got_reli_size += rel_size;
9830 }
9831 else if (info->shared)
9832 {
9833 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
9834 srel->size += rel_size;
927be08e 9835 }
0b8bcf0d 9836 pent = &ent->next;
411e1bfb
AM		 9837 }
9838 }
9839 else
0b8bcf0d 9840 *pent = ent->next;
65f38f15 9841 }
e054468f
AM		 9842
9843 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
9844 for (; local_plt < end_local_plt; ++local_plt)
9845 {
9846 struct plt_entry *ent;
9847
9848 for (ent = *local_plt; ent != NULL; ent = ent->next)
9849 if (ent->plt.refcount > 0)
9850 {
33e44f2e 9851 s = htab->elf.iplt;
e054468f 9852 ent->plt.offset = s->size;
b9e5796b 9853 s->size += PLT_ENTRY_SIZE (htab);
e054468f 9854
33e44f2e 9855 htab->elf.irelplt->size += sizeof (Elf64_External_Rela);
e054468f
AM		 9856 }
9857 else
9858 ent->plt.offset = (bfd_vma) -1;
9859 }
65f38f15
AM		 9860 }
9861
9862 /* Allocate global sym .plt and .got entries, and space for global
9863 sym dynamic relocs. */
4ce794b7 9864 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
a345bc8d
AM		 9865 /* Stash the end of glink branch table. */
9866 if (htab->glink != NULL)
9867 htab->glink->rawsize = htab->glink->size;
9868
9869 if (!htab->opd_abi && !info->shared)
9870 elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info);
65f38f15 9871
7865406b 9872 first_tlsld = NULL;
c72f2fb2 9873 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
102890f0 9874 {
7865406b
AM		 9875 struct got_entry *ent;
9876
0c8d6e5c 9877 if (!is_ppc64_elf (ibfd))
102890f0
AM		 9878 continue;
9879
7865406b
AM		 9880 ent = ppc64_tlsld_got (ibfd);
9881 if (ent->got.refcount > 0)
102890f0 9882 {
7865406b 9883 if (!htab->do_multi_toc && first_tlsld != NULL)
102890f0 9884 {
7865406b
AM		 9885 ent->is_indirect = TRUE;
9886 ent->got.ent = first_tlsld;
9887 }
9888 else
9889 {
9890 if (first_tlsld == NULL)
9891 first_tlsld = ent;
9892 s = ppc64_elf_tdata (ibfd)->got;
9893 ent->got.offset = s->size;
9894 ent->owner = ibfd;
9895 s->size += 16;
9896 if (info->shared)
9897 {
9898 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
9899 srel->size += sizeof (Elf64_External_Rela);
9900 }
102890f0
AM		 9901 }
9902 }
9903 else
7865406b 9904 ent->got.offset = (bfd_vma) -1;
102890f0
AM		 9905 }
9906
65f38f15
AM		 9907 /* We now have determined the sizes of the various dynamic sections.
9908 Allocate memory for them. */
b34976b6 9909 relocs = FALSE;
65f38f15
AM		 9910 for (s = dynobj->sections; s != NULL; s = s->next)
9911 {
9912 if ((s->flags & SEC_LINKER_CREATED) == 0)
9913 continue;
9914
4ce794b7 9915 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 9916 /* These haven't been allocated yet; don't strip. */
9917 continue;
33e44f2e
AM		 9918 else if (s == htab->elf.sgot
9919 || s == htab->elf.splt
9920 || s == htab->elf.iplt
c456f082
AM		 9921 || s == htab->glink
9922 || s == htab->dynbss)
65f38f15
AM		 9923 {
9924 /* Strip this section if we don't need it; see the
9925 comment below. */
5bd4f169 9926 }
58d180e8
AM		 9927 else if (s == htab->glink_eh_frame)
9928 {
9929 if (!bfd_is_abs_section (s->output_section))
9930 /* Not sized yet. */
9931 continue;
9932 }
70cc837d 9933 else if (CONST_STRNEQ (s->name, ".rela"))
5bd4f169 9934 {
c456f082 9935 if (s->size != 0)
5bd4f169 9936 {
33e44f2e 9937 if (s != htab->elf.srelplt)
b34976b6 9938 relocs = TRUE;
5bd4f169
AM		 9939
9940 /* We use the reloc_count field as a counter if we need
9941 to copy relocs into the output file. */
9942 s->reloc_count = 0;
9943 }
9944 }
65f38f15 9945 else
5bd4f169
AM		 9946 {
9947 /* It's not one of our sections, so don't allocate space. */
9948 continue;
9949 }
9950
eea6121a 9951 if (s->size == 0)
5bd4f169 9952 {
c456f082
AM		 9953 /* If we don't need this section, strip it from the
9954 output file. This is mostly to handle .rela.bss and
9955 .rela.plt. We must create both sections in
9956 create_dynamic_sections, because they must be created
9957 before the linker maps input sections to output
9958 sections. The linker does that before
9959 adjust_dynamic_symbol is called, and it is that
9960 function which decides whether anything needs to go
9961 into these sections. */
8423293d 9962 s->flags |= SEC_EXCLUDE;
5bd4f169
AM		 9963 continue;
9964 }
9965
c456f082 9966 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5f333394
AM		 9967 continue;
9968
65f38f15
AM		 9969 /* Allocate memory for the section contents. We use bfd_zalloc
9970 here in case unused entries are not reclaimed before the
9971 section's contents are written out. This should not happen,
411e1bfb
AM		 9972 but this way if it does we get a R_PPC64_NONE reloc in .rela
9973 sections instead of garbage.
9974 We also rely on the section contents being zero when writing
9975 the GOT. */
eea6121a 9976 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 9977 if (s->contents == NULL)
b34976b6 9978 return FALSE;
5bd4f169
AM		 9979 }
9980
c72f2fb2 9981 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
e717da7e 9982 {
0c8d6e5c 9983 if (!is_ppc64_elf (ibfd))
7b53ace3
AM		 9984 continue;
9985
e717da7e 9986 s = ppc64_elf_tdata (ibfd)->got;
33e44f2e 9987 if (s != NULL && s != htab->elf.sgot)
e717da7e 9988 {
eea6121a 9989 if (s->size == 0)
8423293d 9990 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 9991 else
9992 {
eea6121a 9993 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 9994 if (s->contents == NULL)
9995 return FALSE;
9996 }
9997 }
9998 s = ppc64_elf_tdata (ibfd)->relgot;
9999 if (s != NULL)
10000 {
eea6121a 10001 if (s->size == 0)
8423293d 10002 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 10003 else
10004 {
eea6121a 10005 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 10006 if (s->contents == NULL)
10007 return FALSE;
10008 relocs = TRUE;
10009 s->reloc_count = 0;
10010 }
10011 }
10012 }
10013
e86ce104 10014 if (htab->elf.dynamic_sections_created)
5bd4f169 10015 {
e8910a83
AM		 10016 bfd_boolean tls_opt;
10017
5bd4f169
AM		 10018 /* Add some entries to the .dynamic section. We fill in the
10019 values later, in ppc64_elf_finish_dynamic_sections, but we
10020 must add the entries now so that we get the correct size for
10021 the .dynamic section. The DT_DEBUG entry is filled in by the
10022 dynamic linker and used by the debugger. */
dc810e39 10023#define add_dynamic_entry(TAG, VAL) \
5a580b3a 10024 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 10025
36af4a4e 10026 if (info->executable)
5bd4f169 10027 {
dc810e39 10028 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 10029 return FALSE;
5bd4f169
AM		 10030 }
10031
33e44f2e 10032 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
5bd4f169 10033 {
dc810e39
AM		 10034 if (!add_dynamic_entry (DT_PLTGOT, 0)
10035 || !add_dynamic_entry (DT_PLTRELSZ, 0)
10036 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 10037 || !add_dynamic_entry (DT_JMPREL, 0)
10038 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 10039 return FALSE;
5bd4f169
AM		 10040 }
10041
ee67d69a 10042 if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1)
19397422
AM		 10043 {
10044 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
10045 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 10046 return FALSE;
19397422
AM		 10047 }
10048
e7d1c40c 10049 tls_opt = (!htab->params->no_tls_get_addr_opt
e8910a83
AM		 10050 && htab->tls_get_addr_fd != NULL
10051 && htab->tls_get_addr_fd->elf.plt.plist != NULL);
10052 if (tls_opt || !htab->opd_abi)
10053 {
10054 if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0))
10055 return FALSE;
10056 }
a7f2871e 10057
5bd4f169
AM		 10058 if (relocs)
10059 {
dc810e39
AM		 10060 if (!add_dynamic_entry (DT_RELA, 0)
10061 || !add_dynamic_entry (DT_RELASZ, 0)
10062 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 10063 return FALSE;
5bd4f169 10064
65f38f15
AM		 10065 /* If any dynamic relocs apply to a read-only section,
10066 then we need a DT_TEXTREL entry. */
248866a8 10067 if ((info->flags & DF_TEXTREL) == 0)
a345bc8d 10068 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
5bd4f169 10069
65f38f15 10070 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 10071 {
65f38f15 10072 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 10073 return FALSE;
5bd4f169 10074 }
5bd4f169 10075 }
5bd4f169 10076 }
65f38f15 10077#undef add_dynamic_entry
5bd4f169 10078
b34976b6 10079 return TRUE;
5bd4f169
AM		 10080}
10081
a345bc8d
AM		 10082/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
10083
10084static bfd_boolean
10085ppc64_elf_hash_symbol (struct elf_link_hash_entry *h)
10086{
10087 if (h->plt.plist != NULL
10088 && !h->def_regular
10089 && !h->pointer_equality_needed)
10090 return FALSE;
10091
10092 return _bfd_elf_hash_symbol (h);
10093}
10094
721956f4 10095/* Determine the type of stub needed, if any, for a call. */
5bd4f169 10096
4ce794b7
AM		 10097static inline enum ppc_stub_type
10098ppc_type_of_stub (asection *input_sec,
10099 const Elf_Internal_Rela *rel,
10100 struct ppc_link_hash_entry **hash,
e054468f 10101 struct plt_entry **plt_ent,
6911b7dc
AM		 10102 bfd_vma destination,
10103 unsigned long local_off)
5bd4f169 10104{
721956f4
AM		 10105 struct ppc_link_hash_entry *h = *hash;
10106 bfd_vma location;
10107 bfd_vma branch_offset;
10108 bfd_vma max_branch_offset;
4ce794b7 10109 enum elf_ppc64_reloc_type r_type;
5bd4f169 10110
721956f4
AM		 10111 if (h != NULL)
10112 {
e054468f 10113 struct plt_entry *ent;
7fe2b9a6 10114 struct ppc_link_hash_entry *fdh = h;
b31867b6
AM		 10115 if (h->oh != NULL
10116 && h->oh->is_func_descriptor)
7b8f6675
AM		 10117 {
10118 fdh = ppc_follow_link (h->oh);
10119 *hash = fdh;
10120 }
8387904d 10121
e054468f
AM		 10122 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
10123 if (ent->addend == rel->r_addend
10124 && ent->plt.offset != (bfd_vma) -1)
10125 {
e054468f
AM		 10126 *plt_ent = ent;
10127 return ppc_stub_plt_call;
10128 }
5bd4f169 10129
7fe2b9a6
AM		 10130 /* Here, we know we don't have a plt entry. If we don't have a
10131 either a defined function descriptor or a defined entry symbol
10132 in a regular object file, then it is pointless trying to make
10133 any other type of stub. */
854b41e7
AM		 10134 if (!is_static_defined (&fdh->elf)
10135 && !is_static_defined (&h->elf))
721956f4 10136 return ppc_stub_none;
5d1634d7 10137 }
e054468f
AM		 10138 else if (elf_local_got_ents (input_sec->owner) != NULL)
10139 {
10140 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner);
10141 struct plt_entry **local_plt = (struct plt_entry **)
10142 elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info;
10143 unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
10144
10145 if (local_plt[r_symndx] != NULL)
10146 {
10147 struct plt_entry *ent;
10148
10149 for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next)
10150 if (ent->addend == rel->r_addend
10151 && ent->plt.offset != (bfd_vma) -1)
10152 {
10153 *plt_ent = ent;
10154 return ppc_stub_plt_call;
10155 }
10156 }
10157 }
5d1634d7 10158
721956f4
AM		 10159 /* Determine where the call point is. */
10160 location = (input_sec->output_offset
10161 + input_sec->output_section->vma
10162 + rel->r_offset);
5d1634d7 10163
721956f4
AM		 10164 branch_offset = destination - location;
10165 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 10166
721956f4
AM		 10167 /* Determine if a long branch stub is needed. */
10168 max_branch_offset = 1 << 25;
4ce794b7 10169 if (r_type != R_PPC64_REL24)
721956f4 10170 max_branch_offset = 1 << 15;
5d1634d7 10171
6911b7dc 10172 if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off)
721956f4
AM		 10173 /* We need a stub. Figure out whether a long_branch or plt_branch
10174 is needed later. */
10175 return ppc_stub_long_branch;
5d1634d7 10176
721956f4 10177 return ppc_stub_none;
5d1634d7
AM		 10178}
10179
794e51c0
AM		 10180/* With power7 weakly ordered memory model, it is possible for ld.so
10181 to update a plt entry in one thread and have another thread see a
10182 stale zero toc entry. To avoid this we need some sort of acquire
10183 barrier in the call stub. One solution is to make the load of the
10184 toc word seem to appear to depend on the load of the function entry
10185 word. Another solution is to test for r2 being zero, and branch to
10186 the appropriate glink entry if so.
10187
10188 . fake dep barrier compare
71a39c98
AM		 10189 . ld 12,xxx(2) ld 12,xxx(2)
10190 . mtctr 12 mtctr 12
10191 . xor 11,12,12 ld 2,xxx+8(2)
794e51c0
AM		 10192 . add 2,2,11 cmpldi 2,0
10193 . ld 2,xxx+8(2) bnectr+
10194 . bctr b <glink_entry>
10195
10196 The solution involving the compare turns out to be faster, so
10197 that's what we use unless the branch won't reach. */
10198
10199#define ALWAYS_USE_FAKE_DEP 0
10200#define ALWAYS_EMIT_R2SAVE 0
5d1634d7 10201
5d1634d7
AM		 10202#define PPC_LO(v) ((v) & 0xffff)
10203#define PPC_HI(v) (((v) >> 16) & 0xffff)
10204#define PPC_HA(v) PPC_HI ((v) + 0x8000)
10205
794e51c0
AM		 10206static inline unsigned int
10207plt_stub_size (struct ppc_link_hash_table *htab,
10208 struct ppc_stub_hash_entry *stub_entry,
10209 bfd_vma off)
10210{
b9e5796b
AM		 10211 unsigned size = 12;
10212
10213 if (ALWAYS_EMIT_R2SAVE
10214 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10215 size += 4;
10216 if (PPC_HA (off) != 0)
794e51c0 10217 size += 4;
b9e5796b
AM		 10218 if (htab->opd_abi)
10219 {
10220 size += 4;
e7d1c40c 10221 if (htab->params->plt_static_chain)
b9e5796b 10222 size += 4;
e7d1c40c 10223 if (htab->params->plt_thread_safe)
b9e5796b 10224 size += 8;
e7d1c40c 10225 if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off))
b9e5796b
AM		 10226 size += 4;
10227 }
794e51c0
AM		 10228 if (stub_entry->h != NULL
10229 && (stub_entry->h == htab->tls_get_addr_fd
10230 || stub_entry->h == htab->tls_get_addr)
e7d1c40c 10231 && !htab->params->no_tls_get_addr_opt)
794e51c0
AM		 10232 size += 13 * 4;
10233 return size;
10234}
10235
10236/* If this stub would cross fewer 2**plt_stub_align boundaries if we align,
10237 then return the padding needed to do so. */
10238static inline unsigned int
10239plt_stub_pad (struct ppc_link_hash_table *htab,
10240 struct ppc_stub_hash_entry *stub_entry,
10241 bfd_vma plt_off)
10242{
e7d1c40c 10243 int stub_align = 1 << htab->params->plt_stub_align;
794e51c0
AM		 10244 unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off);
10245 bfd_vma stub_off = stub_entry->stub_sec->size;
10246
10247 if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align)
e05fa0ba 10248 > ((stub_size - 1) & -stub_align))
794e51c0
AM		 10249 return stub_align - (stub_off & (stub_align - 1));
10250 return 0;
10251}
10252
10253/* Build a .plt call stub. */
10254
10255static inline bfd_byte *
10256build_plt_stub (struct ppc_link_hash_table *htab,
10257 struct ppc_stub_hash_entry *stub_entry,
10258 bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
10259{
e7d1c40c 10260 bfd *obfd = htab->params->stub_bfd;
b9e5796b 10261 bfd_boolean plt_load_toc = htab->opd_abi;
e7d1c40c
AM		 10262 bfd_boolean plt_static_chain = htab->params->plt_static_chain;
10263 bfd_boolean plt_thread_safe = htab->params->plt_thread_safe;
794e51c0
AM		 10264 bfd_boolean use_fake_dep = plt_thread_safe;
10265 bfd_vma cmp_branch_off = 0;
10266
10267 if (!ALWAYS_USE_FAKE_DEP
b9e5796b 10268 && plt_load_toc
794e51c0
AM		 10269 && plt_thread_safe
10270 && !(stub_entry->h != NULL
10271 && (stub_entry->h == htab->tls_get_addr_fd
10272 || stub_entry->h == htab->tls_get_addr)
e7d1c40c 10273 && !htab->params->no_tls_get_addr_opt))
794e51c0
AM		 10274 {
10275 bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1;
b9e5796b
AM		 10276 bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab))
10277 / PLT_ENTRY_SIZE (htab));
794e51c0
AM		 10278 bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8;
10279 bfd_vma to, from;
10280
68d62958
AM		 10281 if (pltindex > 32768)
10282 glinkoff += (pltindex - 32768) * 4;
794e51c0
AM		 10283 to = (glinkoff
10284 + htab->glink->output_offset
10285 + htab->glink->output_section->vma);
10286 from = (p - stub_entry->stub_sec->contents
10287 + 4 * (ALWAYS_EMIT_R2SAVE
10288 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10289 + 4 * (PPC_HA (offset) != 0)
10290 + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain)
10291 != PPC_HA (offset))
10292 + 4 * (plt_static_chain != 0)
10293 + 20
10294 + stub_entry->stub_sec->output_offset
10295 + stub_entry->stub_sec->output_section->vma);
10296 cmp_branch_off = to - from;
10297 use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26);
10298 }
10299
ac2df442
AM		 10300 if (PPC_HA (offset) != 0)
10301 {
176a0d42
AM		 10302 if (r != NULL)
10303 {
794e51c0
AM		 10304 if (ALWAYS_EMIT_R2SAVE
10305 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10306 r[0].r_offset += 4;
176a0d42 10307 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
3b421ab3 10308 r[1].r_offset = r[0].r_offset + 4;
176a0d42
AM		 10309 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10310 r[1].r_addend = r[0].r_addend;
b9e5796b 10311 if (plt_load_toc)
176a0d42 10312 {
b9e5796b 10313 if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
c7131b65 10314 {
b9e5796b
AM		 10315 r[2].r_offset = r[1].r_offset + 4;
10316 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
10317 r[2].r_addend = r[0].r_addend;
10318 }
10319 else
10320 {
10321 r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep;
10322 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10323 r[2].r_addend = r[0].r_addend + 8;
10324 if (plt_static_chain)
10325 {
10326 r[3].r_offset = r[2].r_offset + 4;
10327 r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10328 r[3].r_addend = r[0].r_addend + 16;
10329 }
c7131b65 10330 }
176a0d42
AM		 10331 }
10332 }
794e51c0
AM		 10333 if (ALWAYS_EMIT_R2SAVE
10334 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
a078d95a 10335 bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
397998fc
AM		 10336 if (plt_load_toc)
10337 {
10338 bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4;
10339 bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4;
10340 }
10341 else
10342 {
10343 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
10344 bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4;
10345 }
b9e5796b
AM		 10346 if (plt_load_toc
10347 && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
ac2df442 10348 {
71a39c98 10349 bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4;
ac2df442
AM		 10350 offset = 0;
10351 }
71a39c98 10352 bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
b9e5796b 10353 if (plt_load_toc)
794e51c0 10354 {
b9e5796b
AM		 10355 if (use_fake_dep)
10356 {
10357 bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4;
10358 bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4;
10359 }
10360 bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4;
10361 if (plt_static_chain)
10362 bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4;
794e51c0 10363 }
ac2df442
AM		 10364 }
10365 else
10366 {
176a0d42
AM		 10367 if (r != NULL)
10368 {
794e51c0
AM		 10369 if (ALWAYS_EMIT_R2SAVE
10370 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
10371 r[0].r_offset += 4;
176a0d42 10372 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
b9e5796b 10373 if (plt_load_toc)
176a0d42 10374 {
b9e5796b 10375 if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
c7131b65 10376 {
b9e5796b
AM		 10377 r[1].r_offset = r[0].r_offset + 4;
10378 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
10379 r[1].r_addend = r[0].r_addend;
10380 }
10381 else
10382 {
10383 r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep;
10384 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10385 r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain;
10386 if (plt_static_chain)
10387 {
10388 r[2].r_offset = r[1].r_offset + 4;
10389 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10390 r[2].r_addend = r[0].r_addend + 8;
10391 }
c7131b65 10392 }
176a0d42
AM		 10393 }
10394 }
794e51c0
AM		 10395 if (ALWAYS_EMIT_R2SAVE
10396 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
a078d95a 10397 bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
71a39c98 10398 bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4;
b9e5796b
AM		 10399 if (plt_load_toc
10400 && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
ac2df442
AM		 10401 {
10402 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
10403 offset = 0;
10404 }
71a39c98 10405 bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
b9e5796b 10406 if (plt_load_toc)
794e51c0 10407 {
b9e5796b
AM		 10408 if (use_fake_dep)
10409 {
10410 bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4;
10411 bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4;
10412 }
10413 if (plt_static_chain)
10414 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
10415 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
794e51c0 10416 }
ac2df442 10417 }
b9e5796b 10418 if (plt_load_toc && plt_thread_safe && !use_fake_dep)
794e51c0
AM		 10419 {
10420 bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4;
10421 bfd_put_32 (obfd, BNECTR_P4, p), p += 4;
22aa0c7e 10422 bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4;
794e51c0
AM		 10423 }
10424 else
10425 bfd_put_32 (obfd, BCTR, p), p += 4;
5d1634d7
AM		 10426 return p;
10427}
10428
a7f2871e
AM		 10429/* Build a special .plt call stub for __tls_get_addr. */
10430
10431#define LD_R11_0R3 0xe9630000
10432#define LD_R12_0R3 0xe9830000
10433#define MR_R0_R3 0x7c601b78
10434#define CMPDI_R11_0 0x2c2b0000
10435#define ADD_R3_R12_R13 0x7c6c6a14
10436#define BEQLR 0x4d820020
10437#define MR_R3_R0 0x7c030378
a7f2871e
AM		 10438#define STD_R11_0R1 0xf9610000
10439#define BCTRL 0x4e800421
10440#define LD_R11_0R1 0xe9610000
a7f2871e
AM		 10441#define MTLR_R11 0x7d6803a6
10442
10443static inline bfd_byte *
794e51c0
AM		 10444build_tls_get_addr_stub (struct ppc_link_hash_table *htab,
10445 struct ppc_stub_hash_entry *stub_entry,
10446 bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
a7f2871e 10447{
e7d1c40c 10448 bfd *obfd = htab->params->stub_bfd;
794e51c0 10449
a7f2871e
AM		 10450 bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4;
10451 bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4;
10452 bfd_put_32 (obfd, MR_R0_R3, p), p += 4;
10453 bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4;
10454 bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4;
10455 bfd_put_32 (obfd, BEQLR, p), p += 4;
10456 bfd_put_32 (obfd, MR_R3_R0, p), p += 4;
10457 bfd_put_32 (obfd, MFLR_R11, p), p += 4;
a078d95a 10458 bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4;
a7f2871e
AM		 10459
10460 if (r != NULL)
10461 r[0].r_offset += 9 * 4;
794e51c0 10462 p = build_plt_stub (htab, stub_entry, p, offset, r);
a7f2871e
AM		 10463 bfd_put_32 (obfd, BCTRL, p - 4);
10464
a078d95a
AM		 10465 bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4;
10466 bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4;
a7f2871e
AM		 10467 bfd_put_32 (obfd, MTLR_R11, p), p += 4;
10468 bfd_put_32 (obfd, BLR, p), p += 4;
10469
10470 return p;
10471}
10472
176a0d42
AM		 10473static Elf_Internal_Rela *
10474get_relocs (asection *sec, int count)
10475{
10476 Elf_Internal_Rela *relocs;
10477 struct bfd_elf_section_data *elfsec_data;
10478
10479 elfsec_data = elf_section_data (sec);
10480 relocs = elfsec_data->relocs;
10481 if (relocs == NULL)
10482 {
10483 bfd_size_type relsize;
10484 relsize = sec->reloc_count * sizeof (*relocs);
10485 relocs = bfd_alloc (sec->owner, relsize);
10486 if (relocs == NULL)
10487 return NULL;
10488 elfsec_data->relocs = relocs;
d4730f92
BS		 10489 elfsec_data->rela.hdr = bfd_zalloc (sec->owner,
10490 sizeof (Elf_Internal_Shdr));
10491 if (elfsec_data->rela.hdr == NULL)
10492 return NULL;
10493 elfsec_data->rela.hdr->sh_size = (sec->reloc_count
10494 * sizeof (Elf64_External_Rela));
10495 elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela);
176a0d42
AM		 10496 sec->reloc_count = 0;
10497 }
10498 relocs += sec->reloc_count;
10499 sec->reloc_count += count;
10500 return relocs;
10501}
10502
aa374f67 10503static bfd_vma
25f53a85 10504get_r2off (struct bfd_link_info *info,
aa374f67
AM		 10505 struct ppc_stub_hash_entry *stub_entry)
10506{
25f53a85 10507 struct ppc_link_hash_table *htab = ppc_hash_table (info);
aa374f67
AM		 10508 bfd_vma r2off = htab->stub_group[stub_entry->target_section->id].toc_off;
10509
10510 if (r2off == 0)
10511 {
10512 /* Support linking -R objects. Get the toc pointer from the
10513 opd entry. */
10514 char buf[8];
b9e5796b
AM		 10515 if (!htab->opd_abi)
10516 return r2off;
aa374f67
AM		 10517 asection *opd = stub_entry->h->elf.root.u.def.section;
10518 bfd_vma opd_off = stub_entry->h->elf.root.u.def.value;
10519
10520 if (strcmp (opd->name, ".opd") != 0
10521 || opd->reloc_count != 0)
10522 {
bc30df16 10523 info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"),
25f53a85 10524 stub_entry->h->elf.root.root.string);
aa374f67
AM		 10525 bfd_set_error (bfd_error_bad_value);
10526 return 0;
10527 }
10528 if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8))
10529 return 0;
10530 r2off = bfd_get_64 (opd->owner, buf);
25f53a85 10531 r2off -= elf_gp (info->output_bfd);
aa374f67
AM		 10532 }
10533 r2off -= htab->stub_group[stub_entry->id_sec->id].toc_off;
10534 return r2off;
10535}
10536
b34976b6 10537static bfd_boolean
4ce794b7 10538ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 10539{
721956f4
AM		 10540 struct ppc_stub_hash_entry *stub_entry;
10541 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 10542 struct bfd_link_info *info;
10543 struct ppc_link_hash_table *htab;
721956f4
AM		 10544 bfd_byte *loc;
10545 bfd_byte *p;
ee75fd95 10546 bfd_vma dest, off;
721956f4 10547 int size;
176a0d42 10548 Elf_Internal_Rela *r;
e054468f 10549 asection *plt;
5d1634d7 10550
721956f4
AM		 10551 /* Massage our args to the form they really have. */
10552 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 10553 info = in_arg;
5d1634d7 10554
5d1634d7 10555 htab = ppc_hash_table (info);
4dfe6ac6
NC		 10556 if (htab == NULL)
10557 return FALSE;
5d1634d7 10558
721956f4 10559 /* Make a note of the offset within the stubs for this entry. */
eea6121a 10560 stub_entry->stub_offset = stub_entry->stub_sec->size;
97b639ba 10561 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 10562
4ce794b7 10563 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 10564 switch (stub_entry->stub_type)
5d1634d7 10565 {
721956f4 10566 case ppc_stub_long_branch:
ad8e1ba5 10567 case ppc_stub_long_branch_r2off:
721956f4 10568 /* Branches are relative. This is where we are going to. */
6911b7dc
AM		 10569 dest = (stub_entry->target_value
10570 + stub_entry->target_section->output_offset
10571 + stub_entry->target_section->output_section->vma);
10572 dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
10573 off = dest;
5d1634d7 10574
721956f4
AM		 10575 /* And this is where we are coming from. */
10576 off -= (stub_entry->stub_offset
97b639ba
AM		 10577 + stub_entry->stub_sec->output_offset
10578 + stub_entry->stub_sec->output_section->vma);
e86ce104 10579
ac2df442
AM		 10580 size = 4;
10581 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
ad8e1ba5 10582 {
25f53a85 10583 bfd_vma r2off = get_r2off (info, stub_entry);
ad8e1ba5 10584
aa374f67
AM		 10585 if (r2off == 0)
10586 {
10587 htab->stub_error = TRUE;
10588 return FALSE;
10589 }
e7d1c40c 10590 bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
ad8e1ba5 10591 loc += 4;
ac2df442
AM		 10592 size = 12;
10593 if (PPC_HA (r2off) != 0)
10594 {
10595 size = 16;
e7d1c40c
AM		 10596 bfd_put_32 (htab->params->stub_bfd,
10597 ADDIS_R2_R2 | PPC_HA (r2off), loc);
ac2df442
AM		 10598 loc += 4;
10599 }
e7d1c40c 10600 bfd_put_32 (htab->params->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5 10601 loc += 4;
ac2df442 10602 off -= size - 4;
ad8e1ba5 10603 }
e7d1c40c 10604 bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5 10605
5c3dead3
AM		 10606 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
10607 {
bc30df16
AM		 10608 info->callbacks->einfo
10609 (_("%P: long branch stub `%s' offset overflow\n"),
10610 stub_entry->root.string);
5c3dead3
AM		 10611 htab->stub_error = TRUE;
10612 return FALSE;
10613 }
ee75fd95
AM		 10614
10615 if (info->emitrelocations)
10616 {
176a0d42
AM		 10617 r = get_relocs (stub_entry->stub_sec, 1);
10618 if (r == NULL)
10619 return FALSE;
ee75fd95
AM		 10620 r->r_offset = loc - stub_entry->stub_sec->contents;
10621 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
10622 r->r_addend = dest;
10623 if (stub_entry->h != NULL)
10624 {
10625 struct elf_link_hash_entry **hashes;
10626 unsigned long symndx;
10627 struct ppc_link_hash_entry *h;
10628
e7d1c40c 10629 hashes = elf_sym_hashes (htab->params->stub_bfd);
ee75fd95
AM		 10630 if (hashes == NULL)
10631 {
10632 bfd_size_type hsize;
10633
10634 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
e7d1c40c 10635 hashes = bfd_zalloc (htab->params->stub_bfd, hsize);
ee75fd95
AM		 10636 if (hashes == NULL)
10637 return FALSE;
e7d1c40c 10638 elf_sym_hashes (htab->params->stub_bfd) = hashes;
ee75fd95
AM		 10639 htab->stub_globals = 1;
10640 }
10641 symndx = htab->stub_globals++;
10642 h = stub_entry->h;
10643 hashes[symndx] = &h->elf;
10644 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
10645 if (h->oh != NULL && h->oh->is_func)
b31867b6 10646 h = ppc_follow_link (h->oh);
ee75fd95
AM		 10647 if (h->elf.root.u.def.section != stub_entry->target_section)
10648 /* H is an opd symbol. The addend must be zero. */
10649 r->r_addend = 0;
10650 else
10651 {
10652 off = (h->elf.root.u.def.value
10653 + h->elf.root.u.def.section->output_offset
10654 + h->elf.root.u.def.section->output_section->vma);
10655 r->r_addend -= off;
10656 }
10657 }
10658 }
721956f4 10659 break;
e86ce104 10660
721956f4 10661 case ppc_stub_plt_branch:
ad8e1ba5 10662 case ppc_stub_plt_branch_r2off:
721956f4
AM		 10663 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
10664 stub_entry->root.string + 9,
b34976b6 10665 FALSE, FALSE);
721956f4
AM		 10666 if (br_entry == NULL)
10667 {
8de848d8 10668 info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"),
25f53a85 10669 stub_entry->root.string);
b34976b6
AM		 10670 htab->stub_error = TRUE;
10671 return FALSE;
721956f4
AM		 10672 }
10673
176a0d42
AM		 10674 dest = (stub_entry->target_value
10675 + stub_entry->target_section->output_offset
10676 + stub_entry->target_section->output_section->vma);
6911b7dc
AM		 10677 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
10678 dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
721956f4 10679
176a0d42 10680 bfd_put_64 (htab->brlt->owner, dest,
4ce794b7 10681 htab->brlt->contents + br_entry->offset);
721956f4 10682
f94498ff 10683 if (br_entry->iter == htab->stub_iteration)
721956f4 10684 {
f94498ff 10685 br_entry->iter = 0;
84f5d08e 10686
f94498ff 10687 if (htab->relbrlt != NULL)
84f5d08e 10688 {
f94498ff
AM		 10689 /* Create a reloc for the branch lookup table entry. */
10690 Elf_Internal_Rela rela;
10691 bfd_byte *rl;
10692
10693 rela.r_offset = (br_entry->offset
10694 + htab->brlt->output_offset
10695 + htab->brlt->output_section->vma);
10696 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 10697 rela.r_addend = dest;
f94498ff
AM		 10698
10699 rl = htab->relbrlt->contents;
10700 rl += (htab->relbrlt->reloc_count++
10701 * sizeof (Elf64_External_Rela));
10702 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
10703 }
10704 else if (info->emitrelocations)
10705 {
176a0d42
AM		 10706 r = get_relocs (htab->brlt, 1);
10707 if (r == NULL)
10708 return FALSE;
10709 /* brlt, being SEC_LINKER_CREATED does not go through the
10710 normal reloc processing. Symbols and offsets are not
10711 translated from input file to output file form, so
10712 set up the offset per the output file. */
f94498ff
AM		 10713 r->r_offset = (br_entry->offset
10714 + htab->brlt->output_offset
10715 + htab->brlt->output_section->vma);
10716 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 10717 r->r_addend = dest;
84f5d08e 10718 }
84f5d08e 10719 }
721956f4 10720
176a0d42
AM		 10721 dest = (br_entry->offset
10722 + htab->brlt->output_offset
10723 + htab->brlt->output_section->vma);
10724
10725 off = (dest
4ce794b7 10726 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 10727 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 10728
ad8e1ba5 10729 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7 10730 {
25f53a85 10731 info->callbacks->einfo
bc30df16 10732 (_("%P: linkage table error against `%T'\n"),
721956f4 10733 stub_entry->root.string);
5d1634d7 10734 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 10735 htab->stub_error = TRUE;
10736 return FALSE;
5d1634d7 10737 }
41bd81ab 10738
176a0d42
AM		 10739 if (info->emitrelocations)
10740 {
10741 r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0));
10742 if (r == NULL)
10743 return FALSE;
10744 r[0].r_offset = loc - stub_entry->stub_sec->contents;
7cfbafbc
AM		 10745 if (bfd_big_endian (info->output_bfd))
10746 r[0].r_offset += 2;
00f412ee 10747 if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
176a0d42
AM		 10748 r[0].r_offset += 4;
10749 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
10750 r[0].r_addend = dest;
10751 if (PPC_HA (off) != 0)
10752 {
10753 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
10754 r[1].r_offset = r[0].r_offset + 4;
10755 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
10756 r[1].r_addend = r[0].r_addend;
10757 }
10758 }
10759
00f412ee 10760 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
ad8e1ba5 10761 {
176a0d42 10762 if (PPC_HA (off) != 0)
ac2df442
AM		 10763 {
10764 size = 16;
e7d1c40c 10765 bfd_put_32 (htab->params->stub_bfd,
397998fc 10766 ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 10767 loc += 4;
e7d1c40c 10768 bfd_put_32 (htab->params->stub_bfd,
397998fc 10769 LD_R12_0R12 | PPC_LO (off), loc);
ac2df442
AM		 10770 }
10771 else
10772 {
10773 size = 12;
e7d1c40c
AM		 10774 bfd_put_32 (htab->params->stub_bfd,
10775 LD_R12_0R2 | PPC_LO (off), loc);
ac2df442 10776 }
ad8e1ba5
AM		 10777 }
10778 else
10779 {
25f53a85 10780 bfd_vma r2off = get_r2off (info, stub_entry);
aa374f67 10781
00f412ee 10782 if (r2off == 0 && htab->opd_abi)
aa374f67
AM		 10783 {
10784 htab->stub_error = TRUE;
10785 return FALSE;
10786 }
ad8e1ba5 10787
e7d1c40c 10788 bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
ad8e1ba5 10789 loc += 4;
00f412ee 10790 size = 16;
176a0d42 10791 if (PPC_HA (off) != 0)
ac2df442
AM		 10792 {
10793 size += 4;
e7d1c40c 10794 bfd_put_32 (htab->params->stub_bfd,
397998fc 10795 ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 10796 loc += 4;
e7d1c40c 10797 bfd_put_32 (htab->params->stub_bfd,
397998fc 10798 LD_R12_0R12 | PPC_LO (off), loc);
ac2df442
AM		 10799 }
10800 else
e7d1c40c 10801 bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc);
ac2df442
AM		 10802
10803 if (PPC_HA (r2off) != 0)
10804 {
10805 size += 4;
00f412ee 10806 loc += 4;
e7d1c40c
AM		 10807 bfd_put_32 (htab->params->stub_bfd,
10808 ADDIS_R2_R2 | PPC_HA (r2off), loc);
00f412ee
AM		 10809 }
10810 if (PPC_LO (r2off) != 0)
10811 {
10812 size += 4;
ac2df442 10813 loc += 4;
e7d1c40c
AM		 10814 bfd_put_32 (htab->params->stub_bfd,
10815 ADDI_R2_R2 | PPC_LO (r2off), loc);
ac2df442 10816 }
ad8e1ba5
AM		 10817 }
10818 loc += 4;
e7d1c40c 10819 bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc);
ad8e1ba5 10820 loc += 4;
e7d1c40c 10821 bfd_put_32 (htab->params->stub_bfd, BCTR, loc);
721956f4 10822 break;
5d1634d7 10823
721956f4 10824 case ppc_stub_plt_call:
794e51c0 10825 case ppc_stub_plt_call_r2save:
e054468f 10826 if (stub_entry->h != NULL
b31867b6
AM		 10827 && stub_entry->h->is_func_descriptor
10828 && stub_entry->h->oh != NULL)
c862ae31 10829 {
b31867b6
AM		 10830 struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh);
10831
10832 /* If the old-ABI "dot-symbol" is undefined make it weak so
10833 we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL.
10834 FIXME: We used to define the symbol on one of the call
10835 stubs instead, which is why we test symbol section id
10836 against htab->top_id in various places. Likely all
10837 these checks could now disappear. */
10838 if (fh->elf.root.type == bfd_link_hash_undefined)
10839 fh->elf.root.type = bfd_link_hash_undefweak;
9507a174
AM		 10840 /* Stop undo_symbol_twiddle changing it back to undefined. */
10841 fh->was_undefined = 0;
c862ae31
AM		 10842 }
10843
721956f4 10844 /* Now build the stub. */
e054468f 10845 dest = stub_entry->plt_ent->plt.offset & ~1;
176a0d42 10846 if (dest >= (bfd_vma) -2)
721956f4
AM		 10847 abort ();
10848
33e44f2e 10849 plt = htab->elf.splt;
25f23106
AM		 10850 if (!htab->elf.dynamic_sections_created
10851 || stub_entry->h == NULL
10852 || stub_entry->h->elf.dynindx == -1)
33e44f2e 10853 plt = htab->elf.iplt;
e054468f
AM		 10854
10855 dest += plt->output_offset + plt->output_section->vma;
10856
10857 if (stub_entry->h == NULL
10858 && (stub_entry->plt_ent->plt.offset & 1) == 0)
10859 {
10860 Elf_Internal_Rela rela;
10861 bfd_byte *rl;
10862
10863 rela.r_offset = dest;
ee67d69a
AM		 10864 if (htab->opd_abi)
10865 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
10866 else
10867 rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
e054468f
AM		 10868 rela.r_addend = (stub_entry->target_value
10869 + stub_entry->target_section->output_offset
10870 + stub_entry->target_section->output_section->vma);
10871
33e44f2e
AM		 10872 rl = (htab->elf.irelplt->contents
10873 + (htab->elf.irelplt->reloc_count++
25f23106
AM		 10874 * sizeof (Elf64_External_Rela)));
10875 bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl);
e054468f
AM		 10876 stub_entry->plt_ent->plt.offset |= 1;
10877 }
176a0d42
AM		 10878
10879 off = (dest
e054468f 10880 - elf_gp (plt->output_section->owner)
176a0d42 10881 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 10882
ad8e1ba5 10883 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4 10884 {
25f53a85 10885 info->callbacks->einfo
bc30df16 10886 (_("%P: linkage table error against `%T'\n"),
e054468f
AM		 10887 stub_entry->h != NULL
10888 ? stub_entry->h->elf.root.root.string
10889 : "<local sym>");
721956f4 10890 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 10891 htab->stub_error = TRUE;
10892 return FALSE;
721956f4
AM		 10893 }
10894
e7d1c40c 10895 if (htab->params->plt_stub_align != 0)
794e51c0
AM		 10896 {
10897 unsigned pad = plt_stub_pad (htab, stub_entry, off);
10898
10899 stub_entry->stub_sec->size += pad;
10900 stub_entry->stub_offset = stub_entry->stub_sec->size;
10901 loc += pad;
10902 }
10903
176a0d42
AM		 10904 r = NULL;
10905 if (info->emitrelocations)
10906 {
10907 r = get_relocs (stub_entry->stub_sec,
3ba720c7
AM		 10908 ((PPC_HA (off) != 0)
10909 + (htab->opd_abi
e7d1c40c 10910 ? 2 + (htab->params->plt_static_chain
3ba720c7
AM		 10911 && PPC_HA (off + 16) == PPC_HA (off))
10912 : 1)));
176a0d42
AM		 10913 if (r == NULL)
10914 return FALSE;
10915 r[0].r_offset = loc - stub_entry->stub_sec->contents;
7cfbafbc
AM		 10916 if (bfd_big_endian (info->output_bfd))
10917 r[0].r_offset += 2;
176a0d42
AM		 10918 r[0].r_addend = dest;
10919 }
a7f2871e
AM		 10920 if (stub_entry->h != NULL
10921 && (stub_entry->h == htab->tls_get_addr_fd
10922 || stub_entry->h == htab->tls_get_addr)
e7d1c40c 10923 && !htab->params->no_tls_get_addr_opt)
794e51c0 10924 p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r);
a7f2871e 10925 else
794e51c0 10926 p = build_plt_stub (htab, stub_entry, loc, off, r);
721956f4
AM		 10927 size = p - loc;
10928 break;
10929
10930 default:
10931 BFD_FAIL ();
b34976b6 10932 return FALSE;
721956f4
AM		 10933 }
10934
eea6121a 10935 stub_entry->stub_sec->size += size;
97b639ba 10936
e7d1c40c 10937 if (htab->params->emit_stub_syms)
97b639ba
AM		 10938 {
10939 struct elf_link_hash_entry *h;
ee75fd95
AM		 10940 size_t len1, len2;
10941 char *name;
10942 const char *const stub_str[] = { "long_branch",
10943 "long_branch_r2off",
10944 "plt_branch",
10945 "plt_branch_r2off",
794e51c0 10946 "plt_call",
ee75fd95
AM		 10947 "plt_call" };
10948
10949 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
10950 len2 = strlen (stub_entry->root.string);
10951 name = bfd_malloc (len1 + len2 + 2);
10952 if (name == NULL)
10953 return FALSE;
10954 memcpy (name, stub_entry->root.string, 9);
10955 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
10956 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
10957 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
97b639ba
AM		 10958 if (h == NULL)
10959 return FALSE;
10960 if (h->root.type == bfd_link_hash_new)
10961 {
10962 h->root.type = bfd_link_hash_defined;
10963 h->root.u.def.section = stub_entry->stub_sec;
10964 h->root.u.def.value = stub_entry->stub_offset;
f5385ebf
AM		 10965 h->ref_regular = 1;
10966 h->def_regular = 1;
10967 h->ref_regular_nonweak = 1;
10968 h->forced_local = 1;
10969 h->non_elf = 0;
2ec55de3 10970 h->root.linker_def = 1;
97b639ba
AM		 10971 }
10972 }
10973
b34976b6 10974 return TRUE;
721956f4
AM		 10975}
10976
10977/* As above, but don't actually build the stub. Just bump offset so
10978 we know stub section sizes, and select plt_branch stubs where
10979 long_branch stubs won't do. */
10980
b34976b6 10981static bfd_boolean
4ce794b7 10982ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 10983{
10984 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 10985 struct bfd_link_info *info;
721956f4
AM		 10986 struct ppc_link_hash_table *htab;
10987 bfd_vma off;
10988 int size;
10989
10990 /* Massage our args to the form they really have. */
10991 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 10992 info = in_arg;
10993
10994 htab = ppc_hash_table (info);
4dfe6ac6
NC		 10995 if (htab == NULL)
10996 return FALSE;
721956f4 10997
794e51c0
AM		 10998 if (stub_entry->stub_type == ppc_stub_plt_call
10999 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
721956f4 11000 {
e054468f
AM		 11001 asection *plt;
11002 off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1;
58ac9f71 11003 if (off >= (bfd_vma) -2)
411e1bfb 11004 abort ();
33e44f2e 11005 plt = htab->elf.splt;
25f23106
AM		 11006 if (!htab->elf.dynamic_sections_created
11007 || stub_entry->h == NULL
11008 || stub_entry->h->elf.dynindx == -1)
33e44f2e 11009 plt = htab->elf.iplt;
e054468f
AM		 11010 off += (plt->output_offset
11011 + plt->output_section->vma
11012 - elf_gp (plt->output_section->owner)
ad8e1ba5 11013 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 11014
794e51c0 11015 size = plt_stub_size (htab, stub_entry, off);
e7d1c40c 11016 if (htab->params->plt_stub_align)
794e51c0 11017 size += plt_stub_pad (htab, stub_entry, off);
176a0d42
AM		 11018 if (info->emitrelocations)
11019 {
11020 stub_entry->stub_sec->reloc_count
b9e5796b
AM		 11021 += ((PPC_HA (off) != 0)
11022 + (htab->opd_abi
e7d1c40c 11023 ? 2 + (htab->params->plt_static_chain
b9e5796b
AM		 11024 && PPC_HA (off + 16) == PPC_HA (off))
11025 : 1));
176a0d42
AM		 11026 stub_entry->stub_sec->flags |= SEC_RELOC;
11027 }
721956f4
AM		 11028 }
11029 else
11030 {
ad8e1ba5
AM		 11031 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
11032 variants. */
ac2df442 11033 bfd_vma r2off = 0;
6911b7dc 11034 bfd_vma local_off = 0;
ac2df442 11035
721956f4
AM		 11036 off = (stub_entry->target_value
11037 + stub_entry->target_section->output_offset
11038 + stub_entry->target_section->output_section->vma);
eea6121a 11039 off -= (stub_entry->stub_sec->size
721956f4
AM		 11040 + stub_entry->stub_sec->output_offset
11041 + stub_entry->stub_sec->output_section->vma);
11042
ad8e1ba5
AM		 11043 /* Reset the stub type from the plt variant in case we now
11044 can reach with a shorter stub. */
11045 if (stub_entry->stub_type >= ppc_stub_plt_branch)
11046 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
11047
11048 size = 4;
11049 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
11050 {
25f53a85 11051 r2off = get_r2off (info, stub_entry);
b9e5796b 11052 if (r2off == 0 && htab->opd_abi)
aa374f67
AM		 11053 {
11054 htab->stub_error = TRUE;
11055 return FALSE;
11056 }
ac2df442
AM		 11057 size = 12;
11058 if (PPC_HA (r2off) != 0)
11059 size = 16;
11060 off -= size - 4;
ad8e1ba5
AM		 11061 }
11062
6911b7dc
AM		 11063 local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
11064
b9e5796b
AM		 11065 /* If the branch offset if too big, use a ppc_stub_plt_branch.
11066 Do the same for -R objects without function descriptors. */
11067 if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off
11068 || (stub_entry->stub_type == ppc_stub_long_branch_r2off
11069 && r2off == 0))
721956f4
AM		 11070 {
11071 struct ppc_branch_hash_entry *br_entry;
11072
11073 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
11074 stub_entry->root.string + 9,
b34976b6 11075 TRUE, FALSE);
721956f4
AM		 11076 if (br_entry == NULL)
11077 {
8de848d8 11078 info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"),
25f53a85 11079 stub_entry->root.string);
b34976b6
AM		 11080 htab->stub_error = TRUE;
11081 return FALSE;
721956f4
AM		 11082 }
11083
11084 if (br_entry->iter != htab->stub_iteration)
11085 {
11086 br_entry->iter = htab->stub_iteration;
eea6121a
AM		 11087 br_entry->offset = htab->brlt->size;
11088 htab->brlt->size += 8;
63bc6f6c 11089
ee75fd95 11090 if (htab->relbrlt != NULL)
eea6121a 11091 htab->relbrlt->size += sizeof (Elf64_External_Rela);
84f5d08e
AM		 11092 else if (info->emitrelocations)
11093 {
11094 htab->brlt->reloc_count += 1;
11095 htab->brlt->flags |= SEC_RELOC;
11096 }
721956f4 11097 }
ad8e1ba5
AM		 11098
11099 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
ac2df442
AM		 11100 off = (br_entry->offset
11101 + htab->brlt->output_offset
11102 + htab->brlt->output_section->vma
11103 - elf_gp (htab->brlt->output_section->owner)
11104 - htab->stub_group[stub_entry->id_sec->id].toc_off);
11105
176a0d42
AM		 11106 if (info->emitrelocations)
11107 {
11108 stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0);
11109 stub_entry->stub_sec->flags |= SEC_RELOC;
11110 }
11111
00f412ee 11112 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
ac2df442
AM		 11113 {
11114 size = 12;
176a0d42 11115 if (PPC_HA (off) != 0)
ac2df442
AM		 11116 size = 16;
11117 }
11118 else
11119 {
00f412ee 11120 size = 16;
176a0d42 11121 if (PPC_HA (off) != 0)
ac2df442
AM		 11122 size += 4;
11123
11124 if (PPC_HA (r2off) != 0)
11125 size += 4;
00f412ee
AM		 11126 if (PPC_LO (r2off) != 0)
11127 size += 4;
ac2df442 11128 }
721956f4 11129 }
84f5d08e
AM		 11130 else if (info->emitrelocations)
11131 {
11132 stub_entry->stub_sec->reloc_count += 1;
11133 stub_entry->stub_sec->flags |= SEC_RELOC;
11134 }
721956f4
AM		 11135 }
11136
eea6121a 11137 stub_entry->stub_sec->size += size;
b34976b6 11138 return TRUE;
721956f4
AM		 11139}
11140
11141/* Set up various things so that we can make a list of input sections
11142 for each output section included in the link. Returns -1 on error,
cedb70c5 11143 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 11144
11145int
e7d1c40c 11146ppc64_elf_setup_section_lists (struct bfd_link_info *info)
721956f4
AM		 11147{
11148 bfd *input_bfd;
734b6cf9 11149 int top_id, top_index, id;
721956f4 11150 asection *section;
734b6cf9 11151 asection **input_list;
721956f4
AM		 11152 bfd_size_type amt;
11153 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11154
4dfe6ac6
NC		 11155 if (htab == NULL)
11156 return -1;
4c52953f 11157
1e2f5b6e 11158 /* Find the top input section id. */
3d6f9012 11159 for (input_bfd = info->input_bfds, top_id = 3;
721956f4 11160 input_bfd != NULL;
c72f2fb2 11161 input_bfd = input_bfd->link.next)
721956f4 11162 {
721956f4
AM		 11163 for (section = input_bfd->sections;
11164 section != NULL;
11165 section = section->next)
11166 {
11167 if (top_id < section->id)
11168 top_id = section->id;
11169 }
11170 }
721956f4 11171
8f3bab57 11172 htab->top_id = top_id;
721956f4 11173 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 11174 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 11175 if (htab->stub_group == NULL)
11176 return -1;
11177
3d6f9012
AM		 11178 /* Set toc_off for com, und, abs and ind sections. */
11179 for (id = 0; id < 3; id++)
11180 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 11181
734b6cf9
AM		 11182 /* We can't use output_bfd->section_count here to find the top output
11183 section index as some sections may have been removed, and
8423293d 11184 strip_excluded_output_sections doesn't renumber the indices. */
927be08e 11185 for (section = info->output_bfd->sections, top_index = 0;
734b6cf9
AM		 11186 section != NULL;
11187 section = section->next)
11188 {
11189 if (top_index < section->index)
11190 top_index = section->index;
11191 }
11192
11193 htab->top_index = top_index;
11194 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 11195 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 11196 htab->input_list = input_list;
11197 if (input_list == NULL)
11198 return -1;
11199
721956f4
AM		 11200 return 1;
11201}
11202
927be08e
AM		 11203/* Set up for first pass at multitoc partitioning. */
11204
11205void
11206ppc64_elf_start_multitoc_partition (struct bfd_link_info *info)
11207{
11208 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11209
1c865ab2 11210 htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd);
927be08e
AM		 11211 htab->toc_bfd = NULL;
11212 htab->toc_first_sec = NULL;
11213}
11214
e717da7e
AM		 11215/* The linker repeatedly calls this function for each TOC input section
11216 and linker generated GOT section. Group input bfds such that the toc
927be08e 11217 within a group is less than 64k in size. */
ad8e1ba5 11218
927be08e 11219bfd_boolean
4ce794b7 11220ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 11221{
11222 struct ppc_link_hash_table *htab = ppc_hash_table (info);
d77c8a4b 11223 bfd_vma addr, off, limit;
ad8e1ba5 11224
4dfe6ac6
NC		 11225 if (htab == NULL)
11226 return FALSE;
11227
927be08e 11228 if (!htab->second_toc_pass)
4c52953f 11229 {
927be08e 11230 /* Keep track of the first .toc or .got section for this input bfd. */
a4fd3de5
AM		 11231 bfd_boolean new_bfd = htab->toc_bfd != isec->owner;
11232
11233 if (new_bfd)
bf102f86
AM		 11234 {
11235 htab->toc_bfd = isec->owner;
11236 htab->toc_first_sec = isec;
11237 }
927be08e 11238
bf102f86
AM		 11239 addr = isec->output_offset + isec->output_section->vma;
11240 off = addr - htab->toc_curr;
d77c8a4b
AM		 11241 limit = 0x80008000;
11242 if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc)
11243 limit = 0x10000;
11244 if (off + isec->size > limit)
bf102f86
AM		 11245 {
11246 addr = (htab->toc_first_sec->output_offset
11247 + htab->toc_first_sec->output_section->vma);
11248 htab->toc_curr = addr;
11249 }
99877b66 11250
927be08e
AM		 11251 /* toc_curr is the base address of this toc group. Set elf_gp
11252 for the input section to be the offset relative to the
11253 output toc base plus 0x8000. Making the input elf_gp an
11254 offset allows us to move the toc as a whole without
11255 recalculating input elf_gp. */
11256 off = htab->toc_curr - elf_gp (isec->output_section->owner);
11257 off += TOC_BASE_OFF;
11258
11259 /* Die if someone uses a linker script that doesn't keep input
11260 file .toc and .got together. */
a4fd3de5
AM		 11261 if (new_bfd
11262 && elf_gp (isec->owner) != 0
927be08e
AM		 11263 && elf_gp (isec->owner) != off)
11264 return FALSE;
11265
11266 elf_gp (isec->owner) = off;
11267 return TRUE;
4c52953f 11268 }
927be08e
AM		 11269
11270 /* During the second pass toc_first_sec points to the start of
11271 a toc group, and toc_curr is used to track the old elf_gp.
11272 We use toc_bfd to ensure we only look at each bfd once. */
11273 if (htab->toc_bfd == isec->owner)
11274 return TRUE;
11275 htab->toc_bfd = isec->owner;
11276
11277 if (htab->toc_first_sec == NULL
11278 || htab->toc_curr != elf_gp (isec->owner))
11279 {
11280 htab->toc_curr = elf_gp (isec->owner);
11281 htab->toc_first_sec = isec;
11282 }
11283 addr = (htab->toc_first_sec->output_offset
11284 + htab->toc_first_sec->output_section->vma);
11285 off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF;
11286 elf_gp (isec->owner) = off;
11287
11288 return TRUE;
ad8e1ba5
AM		 11289}
11290
927be08e
AM		 11291/* Called via elf_link_hash_traverse to merge GOT entries for global
11292 symbol H. */
11293
11294static bfd_boolean
11295merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
11296{
11297 if (h->root.type == bfd_link_hash_indirect)
11298 return TRUE;
11299
927be08e
AM		 11300 merge_got_entries (&h->got.glist);
11301
11302 return TRUE;
11303}
11304
11305/* Called via elf_link_hash_traverse to allocate GOT entries for global
11306 symbol H. */
11307
11308static bfd_boolean
11309reallocate_got (struct elf_link_hash_entry *h, void *inf)
11310{
11311 struct got_entry *gent;
11312
11313 if (h->root.type == bfd_link_hash_indirect)
11314 return TRUE;
11315
927be08e
AM		 11316 for (gent = h->got.glist; gent != NULL; gent = gent->next)
11317 if (!gent->is_indirect)
11318 allocate_got (h, (struct bfd_link_info *) inf, gent);
11319 return TRUE;
11320}
11321
11322/* Called on the first multitoc pass after the last call to
11323 ppc64_elf_next_toc_section. This function removes duplicate GOT
11324 entries. */
11325
11326bfd_boolean
11327ppc64_elf_layout_multitoc (struct bfd_link_info *info)
ad8e1ba5
AM		 11328{
11329 struct ppc_link_hash_table *htab = ppc_hash_table (info);
927be08e
AM		 11330 struct bfd *ibfd, *ibfd2;
11331 bfd_boolean done_something;
11332
11333 htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd);
ad8e1ba5 11334
7865406b
AM		 11335 if (!htab->do_multi_toc)
11336 return FALSE;
11337
d0fae19d 11338 /* Merge global sym got entries within a toc group. */
927be08e
AM		 11339 elf_link_hash_traverse (&htab->elf, merge_global_got, info);
11340
11341 /* And tlsld_got. */
c72f2fb2 11342 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11343 {
11344 struct got_entry *ent, *ent2;
11345
11346 if (!is_ppc64_elf (ibfd))
11347 continue;
11348
11349 ent = ppc64_tlsld_got (ibfd);
11350 if (!ent->is_indirect
11351 && ent->got.offset != (bfd_vma) -1)
11352 {
c72f2fb2 11353 for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next)
927be08e
AM		 11354 {
11355 if (!is_ppc64_elf (ibfd2))
11356 continue;
11357
11358 ent2 = ppc64_tlsld_got (ibfd2);
11359 if (!ent2->is_indirect
11360 && ent2->got.offset != (bfd_vma) -1
11361 && elf_gp (ibfd2) == elf_gp (ibfd))
11362 {
11363 ent2->is_indirect = TRUE;
11364 ent2->got.ent = ent;
11365 }
11366 }
11367 }
11368 }
11369
11370 /* Zap sizes of got sections. */
33e44f2e
AM		 11371 htab->elf.irelplt->rawsize = htab->elf.irelplt->size;
11372 htab->elf.irelplt->size -= htab->got_reli_size;
927be08e
AM		 11373 htab->got_reli_size = 0;
11374
c72f2fb2 11375 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11376 {
11377 asection *got, *relgot;
11378
11379 if (!is_ppc64_elf (ibfd))
11380 continue;
11381
11382 got = ppc64_elf_tdata (ibfd)->got;
11383 if (got != NULL)
11384 {
11385 got->rawsize = got->size;
11386 got->size = 0;
11387 relgot = ppc64_elf_tdata (ibfd)->relgot;
11388 relgot->rawsize = relgot->size;
11389 relgot->size = 0;
11390 }
11391 }
11392
11393 /* Now reallocate the got, local syms first. We don't need to
11394 allocate section contents again since we never increase size. */
c72f2fb2 11395 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11396 {
11397 struct got_entry **lgot_ents;
11398 struct got_entry **end_lgot_ents;
11399 struct plt_entry **local_plt;
11400 struct plt_entry **end_local_plt;
f961d9dd 11401 unsigned char *lgot_masks;
927be08e
AM		 11402 bfd_size_type locsymcount;
11403 Elf_Internal_Shdr *symtab_hdr;
19e08130 11404 asection *s;
927be08e
AM		 11405
11406 if (!is_ppc64_elf (ibfd))
11407 continue;
11408
11409 lgot_ents = elf_local_got_ents (ibfd);
11410 if (!lgot_ents)
11411 continue;
11412
11413 symtab_hdr = &elf_symtab_hdr (ibfd);
11414 locsymcount = symtab_hdr->sh_info;
11415 end_lgot_ents = lgot_ents + locsymcount;
11416 local_plt = (struct plt_entry **) end_lgot_ents;
11417 end_local_plt = local_plt + locsymcount;
f961d9dd 11418 lgot_masks = (unsigned char *) end_local_plt;
927be08e 11419 s = ppc64_elf_tdata (ibfd)->got;
927be08e
AM		 11420 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
11421 {
11422 struct got_entry *ent;
11423
11424 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
d0fae19d 11425 {
19e08130
AM		 11426 unsigned int ent_size = 8;
11427 unsigned int rel_size = sizeof (Elf64_External_Rela);
11428
d0fae19d
AM		 11429 ent->got.offset = s->size;
11430 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
d0fae19d 11431 {
19e08130
AM		 11432 ent_size *= 2;
11433 rel_size *= 2;
11434 }
11435 s->size += ent_size;
11436 if ((*lgot_masks & PLT_IFUNC) != 0)
11437 {
33e44f2e 11438 htab->elf.irelplt->size += rel_size;
19e08130
AM		 11439 htab->got_reli_size += rel_size;
11440 }
11441 else if (info->shared)
11442 {
11443 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
11444 srel->size += rel_size;
d0fae19d
AM		 11445 }
11446 }
927be08e
AM		 11447 }
11448 }
11449
11450 elf_link_hash_traverse (&htab->elf, reallocate_got, info);
11451
c72f2fb2 11452 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11453 {
11454 struct got_entry *ent;
11455
11456 if (!is_ppc64_elf (ibfd))
11457 continue;
11458
11459 ent = ppc64_tlsld_got (ibfd);
11460 if (!ent->is_indirect
11461 && ent->got.offset != (bfd_vma) -1)
11462 {
11463 asection *s = ppc64_elf_tdata (ibfd)->got;
11464 ent->got.offset = s->size;
11465 s->size += 16;
11466 if (info->shared)
11467 {
11468 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
11469 srel->size += sizeof (Elf64_External_Rela);
11470 }
11471 }
11472 }
11473
33e44f2e 11474 done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size;
927be08e 11475 if (!done_something)
c72f2fb2 11476 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
927be08e
AM		 11477 {
11478 asection *got;
11479
11480 if (!is_ppc64_elf (ibfd))
11481 continue;
11482
11483 got = ppc64_elf_tdata (ibfd)->got;
11484 if (got != NULL)
11485 {
11486 done_something = got->rawsize != got->size;
11487 if (done_something)
11488 break;
11489 }
11490 }
11491
11492 if (done_something)
e7d1c40c 11493 (*htab->params->layout_sections_again) ();
927be08e
AM		 11494
11495 /* Set up for second pass over toc sections to recalculate elf_gp
11496 on input sections. */
11497 htab->toc_bfd = NULL;
11498 htab->toc_first_sec = NULL;
11499 htab->second_toc_pass = TRUE;
11500 return done_something;
11501}
11502
11503/* Called after second pass of multitoc partitioning. */
11504
11505void
11506ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info)
11507{
11508 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11509
11510 /* After the second pass, toc_curr tracks the TOC offset used
11511 for code sections below in ppc64_elf_next_input_section. */
3d6f9012 11512 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 11513}
11514
9b5ecbd0
AM		 11515/* No toc references were found in ISEC. If the code in ISEC makes no
11516 calls, then there's no need to use toc adjusting stubs when branching
11517 into ISEC. Actually, indirect calls from ISEC are OK as they will
4c52953f
AM		 11518 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
11519 needed, and 2 if a cyclical call-graph was found but no other reason
11520 for a stub was detected. If called from the top level, a return of
11521 2 means the same as a return of 0. */
9b5ecbd0
AM		 11522
11523static int
4ce794b7 11524toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0 11525{
9b5ecbd0 11526 int ret;
70cc837d
AM		 11527
11528 /* Mark this section as checked. */
11529 isec->call_check_done = 1;
9b5ecbd0 11530
772119ce
AM		 11531 /* We know none of our code bearing sections will need toc stubs. */
11532 if ((isec->flags & SEC_LINKER_CREATED) != 0)
11533 return 0;
11534
eea6121a 11535 if (isec->size == 0)
082c50f8
AM		 11536 return 0;
11537
4c52953f
AM		 11538 if (isec->output_section == NULL)
11539 return 0;
11540
4c52953f 11541 ret = 0;
70cc837d 11542 if (isec->reloc_count != 0)
9b5ecbd0 11543 {
70cc837d
AM		 11544 Elf_Internal_Rela *relstart, *rel;
11545 Elf_Internal_Sym *local_syms;
11546 struct ppc_link_hash_table *htab;
2917689a 11547
70cc837d
AM		 11548 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
11549 info->keep_memory);
11550 if (relstart == NULL)
11551 return -1;
90aecf7a 11552
70cc837d
AM		 11553 /* Look for branches to outside of this section. */
11554 local_syms = NULL;
11555 htab = ppc_hash_table (info);
11556 if (htab == NULL)
11557 return -1;
4c52953f 11558
70cc837d 11559 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
4c52953f 11560 {
70cc837d
AM		 11561 enum elf_ppc64_reloc_type r_type;
11562 unsigned long r_symndx;
11563 struct elf_link_hash_entry *h;
11564 struct ppc_link_hash_entry *eh;
11565 Elf_Internal_Sym *sym;
11566 asection *sym_sec;
11567 struct _opd_sec_data *opd;
11568 bfd_vma sym_value;
11569 bfd_vma dest;
11570
11571 r_type = ELF64_R_TYPE (rel->r_info);
11572 if (r_type != R_PPC64_REL24
11573 && r_type != R_PPC64_REL14
11574 && r_type != R_PPC64_REL14_BRTAKEN
11575 && r_type != R_PPC64_REL14_BRNTAKEN)
11576 continue;
4c52953f 11577
70cc837d
AM		 11578 r_symndx = ELF64_R_SYM (rel->r_info);
11579 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
11580 isec->owner))
4c52953f 11581 {
70cc837d
AM		 11582 ret = -1;
11583 break;
11584 }
4c52953f 11585
70cc837d
AM		 11586 /* Calls to dynamic lib functions go through a plt call stub
11587 that uses r2. */
11588 eh = (struct ppc_link_hash_entry *) h;
11589 if (eh != NULL
11590 && (eh->elf.plt.plist != NULL
11591 || (eh->oh != NULL
11592 && ppc_follow_link (eh->oh)->elf.plt.plist != NULL)))
11593 {
11594 ret = 1;
11595 break;
4c52953f
AM		 11596 }
11597
70cc837d
AM		 11598 if (sym_sec == NULL)
11599 /* Ignore other undefined symbols. */
4c52953f 11600 continue;
4c52953f 11601
70cc837d
AM		 11602 /* Assume branches to other sections not included in the
11603 link need stubs too, to cover -R and absolute syms. */
11604 if (sym_sec->output_section == NULL)
11605 {
11606 ret = 1;
11607 break;
11608 }
4c52953f 11609
70cc837d
AM		 11610 if (h == NULL)
11611 sym_value = sym->st_value;
11612 else
11613 {
11614 if (h->root.type != bfd_link_hash_defined
11615 && h->root.type != bfd_link_hash_defweak)
11616 abort ();
11617 sym_value = h->root.u.def.value;
11618 }
11619 sym_value += rel->r_addend;
4c52953f 11620
70cc837d
AM		 11621 /* If this branch reloc uses an opd sym, find the code section. */
11622 opd = get_opd_info (sym_sec);
11623 if (opd != NULL)
11624 {
11625 if (h == NULL && opd->adjust != NULL)
11626 {
11627 long adjust;
4c52953f 11628
51aecdc5 11629 adjust = opd->adjust[OPD_NDX (sym->st_value)];
70cc837d
AM		 11630 if (adjust == -1)
11631 /* Assume deleted functions won't ever be called. */
11632 continue;
11633 sym_value += adjust;
11634 }
4c52953f 11635
aef36ac1
AM		 11636 dest = opd_entry_value (sym_sec, sym_value,
11637 &sym_sec, NULL, FALSE);
70cc837d
AM		 11638 if (dest == (bfd_vma) -1)
11639 continue;
11640 }
11641 else
11642 dest = (sym_value
11643 + sym_sec->output_offset
11644 + sym_sec->output_section->vma);
4c52953f 11645
70cc837d
AM		 11646 /* Ignore branch to self. */
11647 if (sym_sec == isec)
11648 continue;
4c52953f 11649
70cc837d
AM		 11650 /* If the called function uses the toc, we need a stub. */
11651 if (sym_sec->has_toc_reloc
11652 || sym_sec->makes_toc_func_call)
4c52953f 11653 {
70cc837d 11654 ret = 1;
4c52953f
AM		 11655 break;
11656 }
70cc837d
AM		 11657
11658 /* Assume any branch that needs a long branch stub might in fact
11659 need a plt_branch stub. A plt_branch stub uses r2. */
11660 else if (dest - (isec->output_offset
11661 + isec->output_section->vma
6911b7dc
AM		 11662 + rel->r_offset) + (1 << 25)
11663 >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h
11664 ? h->other
11665 : sym->st_other))
4c52953f 11666 {
70cc837d
AM		 11667 ret = 1;
11668 break;
11669 }
11670
11671 /* If calling back to a section in the process of being
11672 tested, we can't say for sure that no toc adjusting stubs
11673 are needed, so don't return zero. */
11674 else if (sym_sec->call_check_in_progress)
11675 ret = 2;
11676
11677 /* Branches to another section that itself doesn't have any TOC
11678 references are OK. Recursively call ourselves to check. */
11679 else if (!sym_sec->call_check_done)
11680 {
11681 int recur;
11682
11683 /* Mark current section as indeterminate, so that other
11684 sections that call back to current won't be marked as
11685 known. */
11686 isec->call_check_in_progress = 1;
11687 recur = toc_adjusting_stub_needed (info, sym_sec);
11688 isec->call_check_in_progress = 0;
11689
4c52953f
AM		 11690 if (recur != 0)
11691 {
70cc837d
AM		 11692 ret = recur;
11693 if (recur != 2)
11694 break;
4c52953f
AM		 11695 }
11696 }
4c52953f 11697 }
70cc837d
AM		 11698
11699 if (local_syms != NULL
11700 && (elf_symtab_hdr (isec->owner).contents
11701 != (unsigned char *) local_syms))
11702 free (local_syms);
11703 if (elf_section_data (isec)->relocs != relstart)
11704 free (relstart);
9b5ecbd0
AM		 11705 }
11706
70cc837d
AM		 11707 if ((ret & 1) == 0
11708 && isec->map_head.s != NULL
11709 && (strcmp (isec->output_section->name, ".init") == 0
11710 || strcmp (isec->output_section->name, ".fini") == 0))
11711 {
11712 if (isec->map_head.s->has_toc_reloc
11713 || isec->map_head.s->makes_toc_func_call)
11714 ret = 1;
11715 else if (!isec->map_head.s->call_check_done)
11716 {
11717 int recur;
11718 isec->call_check_in_progress = 1;
11719 recur = toc_adjusting_stub_needed (info, isec->map_head.s);
11720 isec->call_check_in_progress = 0;
11721 if (recur != 0)
11722 ret = recur;
11723 }
11724 }
11725
11726 if (ret == 1)
11727 isec->makes_toc_func_call = 1;
4c52953f 11728
9b5ecbd0
AM		 11729 return ret;
11730}
11731
721956f4
AM		 11732/* The linker repeatedly calls this function for each input section,
11733 in the order that input sections are linked into output sections.
11734 Build lists of input sections to determine groupings between which
11735 we may insert linker stubs. */
11736
9b5ecbd0 11737bfd_boolean
4ce794b7 11738ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 11739{
11740 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11741
4dfe6ac6
NC		 11742 if (htab == NULL)
11743 return FALSE;
11744
734b6cf9
AM		 11745 if ((isec->output_section->flags & SEC_CODE) != 0
11746 && isec->output_section->index <= htab->top_index)
721956f4 11747 {
734b6cf9 11748 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 11749 /* Steal the link_sec pointer for our list. */
721956f4 11750#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 11751 /* This happens to make the list in reverse order,
11752 which is what we want. */
734b6cf9
AM		 11753 PREV_SEC (isec) = *list;
11754 *list = isec;
721956f4 11755 }
ad8e1ba5 11756
4c52953f 11757 if (htab->multi_toc_needed)
9b5ecbd0 11758 {
8b974ba3
AM		 11759 /* Analyse sections that aren't already flagged as needing a
11760 valid toc pointer. Exclude .fixup for the linux kernel.
11761 .fixup contains branches, but only back to the function that
11762 hit an exception. */
11763 if (!(isec->has_toc_reloc
11764 || (isec->flags & SEC_CODE) == 0
11765 || strcmp (isec->name, ".fixup") == 0
11766 || isec->call_check_done))
11767 {
11768 if (toc_adjusting_stub_needed (info, isec) < 0)
6683a28d 11769 return FALSE;
8b974ba3
AM		 11770 }
11771 /* Make all sections use the TOC assigned for this object file.
11772 This will be wrong for pasted sections; We fix that in
11773 check_pasted_section(). */
11774 if (elf_gp (isec->owner) != 0)
11775 htab->toc_curr = elf_gp (isec->owner);
11776 }
11777
ad8e1ba5 11778 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 11779 return TRUE;
721956f4
AM		 11780}
11781
70cc837d
AM		 11782/* Check that all .init and .fini sections use the same toc, if they
11783 have toc relocs. */
11784
11785static bfd_boolean
11786check_pasted_section (struct bfd_link_info *info, const char *name)
11787{
11788 asection *o = bfd_get_section_by_name (info->output_bfd, name);
11789
11790 if (o != NULL)
11791 {
11792 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11793 bfd_vma toc_off = 0;
11794 asection *i;
11795
11796 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
11797 if (i->has_toc_reloc)
11798 {
11799 if (toc_off == 0)
11800 toc_off = htab->stub_group[i->id].toc_off;
11801 else if (toc_off != htab->stub_group[i->id].toc_off)
11802 return FALSE;
11803 }
6683a28d
AM		 11804
11805 if (toc_off == 0)
11806 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
11807 if (i->makes_toc_func_call)
11808 {
11809 toc_off = htab->stub_group[i->id].toc_off;
11810 break;
11811 }
11812
70cc837d
AM		 11813 /* Make sure the whole pasted function uses the same toc offset. */
11814 if (toc_off != 0)
11815 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
11816 htab->stub_group[i->id].toc_off = toc_off;
11817 }
11818 return TRUE;
11819}
11820
11821bfd_boolean
11822ppc64_elf_check_init_fini (struct bfd_link_info *info)
11823{
11824 return (check_pasted_section (info, ".init")
11825 & check_pasted_section (info, ".fini"));
11826}
11827
721956f4
AM		 11828/* See whether we can group stub sections together. Grouping stub
11829 sections may result in fewer stubs. More importantly, we need to
11830 put all .init* and .fini* stubs at the beginning of the .init or
11831 .fini output sections respectively, because glibc splits the
11832 _init and _fini functions into multiple parts. Putting a stub in
11833 the middle of a function is not a good idea. */
11834
11835static void
4ce794b7
AM		 11836group_sections (struct ppc_link_hash_table *htab,
11837 bfd_size_type stub_group_size,
11838 bfd_boolean stubs_always_before_branch)
721956f4 11839{
7c8fe5c4
AM		 11840 asection **list;
11841 bfd_size_type stub14_group_size;
11842 bfd_boolean suppress_size_errors;
11843
11844 suppress_size_errors = FALSE;
0cfb0717 11845 stub14_group_size = stub_group_size >> 10;
7c8fe5c4
AM		 11846 if (stub_group_size == 1)
11847 {
11848 /* Default values. */
11849 if (stubs_always_before_branch)
11850 {
11851 stub_group_size = 0x1e00000;
11852 stub14_group_size = 0x7800;
11853 }
11854 else
11855 {
11856 stub_group_size = 0x1c00000;
11857 stub14_group_size = 0x7000;
11858 }
11859 suppress_size_errors = TRUE;
11860 }
11861
11862 list = htab->input_list + htab->top_index;
734b6cf9 11863 do
721956f4 11864 {
734b6cf9
AM		 11865 asection *tail = *list;
11866 while (tail != NULL)
721956f4 11867 {
734b6cf9
AM		 11868 asection *curr;
11869 asection *prev;
11870 bfd_size_type total;
11871 bfd_boolean big_sec;
11872 bfd_vma curr_toc;
11873
11874 curr = tail;
eea6121a 11875 total = tail->size;
6bee8834
AM		 11876 big_sec = total > (ppc64_elf_section_data (tail) != NULL
11877 && ppc64_elf_section_data (tail)->has_14bit_branch
7c8fe5c4
AM		 11878 ? stub14_group_size : stub_group_size);
11879 if (big_sec && !suppress_size_errors)
5c3dead3
AM		 11880 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
11881 tail->owner, tail);
734b6cf9
AM		 11882 curr_toc = htab->stub_group[tail->id].toc_off;
11883
11884 while ((prev = PREV_SEC (curr)) != NULL
11885 && ((total += curr->output_offset - prev->output_offset)
6bee8834
AM		 11886 < (ppc64_elf_section_data (prev) != NULL
11887 && ppc64_elf_section_data (prev)->has_14bit_branch
7c8fe5c4 11888 ? stub14_group_size : stub_group_size))
ad8e1ba5 11889 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 11890 curr = prev;
11891
11892 /* OK, the size from the start of CURR to the end is less
11893 than stub_group_size and thus can be handled by one stub
11894 section. (or the tail section is itself larger than
11895 stub_group_size, in which case we may be toast.) We
11896 should really be keeping track of the total size of stubs
11897 added here, as stubs contribute to the final output
11898 section size. That's a little tricky, and this way will
11899 only break if stubs added make the total size more than
11900 2^25, ie. for the default stub_group_size, if stubs total
11901 more than 2097152 bytes, or nearly 75000 plt call stubs. */
11902 do
721956f4
AM		 11903 {
11904 prev = PREV_SEC (tail);
734b6cf9 11905 /* Set up this stub group. */
721956f4
AM		 11906 htab->stub_group[tail->id].link_sec = curr;
11907 }
734b6cf9
AM		 11908 while (tail != curr && (tail = prev) != NULL);
11909
11910 /* But wait, there's more! Input sections up to stub_group_size
11911 bytes before the stub section can be handled by it too.
11912 Don't do this if we have a really large section after the
11913 stubs, as adding more stubs increases the chance that
11914 branches may not reach into the stub section. */
11915 if (!stubs_always_before_branch && !big_sec)
11916 {
11917 total = 0;
11918 while (prev != NULL
11919 && ((total += tail->output_offset - prev->output_offset)
6bee8834
AM		 11920 < (ppc64_elf_section_data (prev) != NULL
11921 && ppc64_elf_section_data (prev)->has_14bit_branch
7c8fe5c4 11922 ? stub14_group_size : stub_group_size))
734b6cf9
AM		 11923 && htab->stub_group[prev->id].toc_off == curr_toc)
11924 {
11925 tail = prev;
11926 prev = PREV_SEC (tail);
11927 htab->stub_group[tail->id].link_sec = curr;
11928 }
11929 }
11930 tail = prev;
721956f4
AM		 11931 }
11932 }
734b6cf9
AM		 11933 while (list-- != htab->input_list);
11934 free (htab->input_list);
721956f4
AM		 11935#undef PREV_SEC
11936}
11937
58d180e8
AM		 11938static const unsigned char glink_eh_frame_cie[] =
11939{
11940 0, 0, 0, 16, /* length. */
11941 0, 0, 0, 0, /* id. */
11942 1, /* CIE version. */
11943 'z', 'R', 0, /* Augmentation string. */
11944 4, /* Code alignment. */
11945 0x78, /* Data alignment. */
11946 65, /* RA reg. */
11947 1, /* Augmentation size. */
11948 DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */
da44f4e5
AM		 11949 DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */
11950 0, 0, 0, 0
58d180e8
AM		 11951};
11952
d969d15f
AM		 11953/* Stripping output sections is normally done before dynamic section
11954 symbols have been allocated. This function is called later, and
11955 handles cases like htab->brlt which is mapped to its own output
11956 section. */
11957
11958static void
11959maybe_strip_output (struct bfd_link_info *info, asection *isec)
11960{
11961 if (isec->size == 0
11962 && isec->output_section->size == 0
53d8967a 11963 && !(isec->output_section->flags & SEC_KEEP)
d969d15f
AM		 11964 && !bfd_section_removed_from_list (info->output_bfd,
11965 isec->output_section)
11966 && elf_section_data (isec->output_section)->dynindx == 0)
11967 {
11968 isec->output_section->flags |= SEC_EXCLUDE;
11969 bfd_section_list_remove (info->output_bfd, isec->output_section);
11970 info->output_bfd->section_count--;
11971 }
11972}
11973
721956f4
AM		 11974/* Determine and set the size of the stub section for a final link.
11975
11976 The basic idea here is to examine all the relocations looking for
11977 PC-relative calls to a target that is unreachable with a "bl"
11978 instruction. */
11979
b34976b6 11980bfd_boolean
e7d1c40c 11981ppc64_elf_size_stubs (struct bfd_link_info *info)
721956f4
AM		 11982{
11983 bfd_size_type stub_group_size;
b34976b6 11984 bfd_boolean stubs_always_before_branch;
721956f4
AM		 11985 struct ppc_link_hash_table *htab = ppc_hash_table (info);
11986
4dfe6ac6
NC		 11987 if (htab == NULL)
11988 return FALSE;
11989
e7d1c40c
AM		 11990 if (htab->params->plt_thread_safe == -1 && !info->executable)
11991 htab->params->plt_thread_safe = 1;
b9e5796b 11992 if (!htab->opd_abi)
e7d1c40c
AM		 11993 htab->params->plt_thread_safe = 0;
11994 else if (htab->params->plt_thread_safe == -1)
794e51c0 11995 {
e2458743 11996 static const char *const thread_starter[] =
794e51c0
AM		 11997 {
11998 "pthread_create",
11999 /* libstdc++ */
12000 "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE",
12001 /* librt */
12002 "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio",
12003 "mq_notify", "create_timer",
12004 /* libanl */
12005 "getaddrinfo_a",
12006 /* libgomp */
2300b5a1 12007 "GOMP_parallel",
794e51c0 12008 "GOMP_parallel_start",
2300b5a1 12009 "GOMP_parallel_loop_static",
794e51c0 12010 "GOMP_parallel_loop_static_start",
2300b5a1 12011 "GOMP_parallel_loop_dynamic",
794e51c0 12012 "GOMP_parallel_loop_dynamic_start",
2300b5a1 12013 "GOMP_parallel_loop_guided",
794e51c0 12014 "GOMP_parallel_loop_guided_start",
2300b5a1 12015 "GOMP_parallel_loop_runtime",
794e51c0 12016 "GOMP_parallel_loop_runtime_start",
2300b5a1 12017 "GOMP_parallel_sections",
68ffbac6 12018 "GOMP_parallel_sections_start",
f9dffbf0
AM		 12019 /* libgo */
12020 "__go_go",
794e51c0
AM		 12021 };
12022 unsigned i;
12023
12024 for (i = 0; i < sizeof (thread_starter)/ sizeof (thread_starter[0]); i++)
12025 {
12026 struct elf_link_hash_entry *h;
12027 h = elf_link_hash_lookup (&htab->elf, thread_starter[i],
12028 FALSE, FALSE, TRUE);
e7d1c40c
AM		 12029 htab->params->plt_thread_safe = h != NULL && h->ref_regular;
12030 if (htab->params->plt_thread_safe)
794e51c0
AM		 12031 break;
12032 }
12033 }
e7d1c40c
AM		 12034 stubs_always_before_branch = htab->params->group_size < 0;
12035 if (htab->params->group_size < 0)
12036 stub_group_size = -htab->params->group_size;
721956f4 12037 else
e7d1c40c 12038 stub_group_size = htab->params->group_size;
721956f4
AM		 12039
12040 group_sections (htab, stub_group_size, stubs_always_before_branch);
12041
721956f4
AM		 12042 while (1)
12043 {
12044 bfd *input_bfd;
12045 unsigned int bfd_indx;
12046 asection *stub_sec;
721956f4
AM		 12047
12048 htab->stub_iteration += 1;
721956f4
AM		 12049
12050 for (input_bfd = info->input_bfds, bfd_indx = 0;
12051 input_bfd != NULL;
c72f2fb2 12052 input_bfd = input_bfd->link.next, bfd_indx++)
721956f4
AM		 12053 {
12054 Elf_Internal_Shdr *symtab_hdr;
12055 asection *section;
6cdc0ccc 12056 Elf_Internal_Sym *local_syms = NULL;
721956f4 12057
0c8d6e5c 12058 if (!is_ppc64_elf (input_bfd))
67f93c31
AM		 12059 continue;
12060
721956f4 12061 /* We'll need the symbol table in a second. */
0ffa91dd 12062 symtab_hdr = &elf_symtab_hdr (input_bfd);
721956f4
AM		 12063 if (symtab_hdr->sh_info == 0)
12064 continue;
12065
721956f4
AM		 12066 /* Walk over each section attached to the input bfd. */
12067 for (section = input_bfd->sections;
12068 section != NULL;
12069 section = section->next)
12070 {
721956f4 12071 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 12072
12073 /* If there aren't any relocs, then there's nothing more
12074 to do. */
12075 if ((section->flags & SEC_RELOC) == 0
12c0f757
AM		 12076 || (section->flags & SEC_ALLOC) == 0
12077 || (section->flags & SEC_LOAD) == 0
12078 || (section->flags & SEC_CODE) == 0
721956f4
AM		 12079 || section->reloc_count == 0)
12080 continue;
12081
12082 /* If this section is a link-once section that will be
12083 discarded, then don't create any stubs. */
12084 if (section->output_section == NULL
927be08e 12085 || section->output_section->owner != info->output_bfd)
721956f4
AM		 12086 continue;
12087
1e2f5b6e
AM		 12088 /* Get the relocs. */
12089 internal_relocs
4ce794b7 12090 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 12091 info->keep_memory);
721956f4 12092 if (internal_relocs == NULL)
1e2f5b6e 12093 goto error_ret_free_local;
721956f4
AM		 12094
12095 /* Now examine each relocation. */
12096 irela = internal_relocs;
12097 irelaend = irela + section->reloc_count;
12098 for (; irela < irelaend; irela++)
12099 {
4ce794b7
AM		 12100 enum elf_ppc64_reloc_type r_type;
12101 unsigned int r_indx;
721956f4
AM		 12102 enum ppc_stub_type stub_type;
12103 struct ppc_stub_hash_entry *stub_entry;
8387904d 12104 asection *sym_sec, *code_sec;
e054468f 12105 bfd_vma sym_value, code_value;
721956f4 12106 bfd_vma destination;
6911b7dc 12107 unsigned long local_off;
8843416a 12108 bfd_boolean ok_dest;
721956f4 12109 struct ppc_link_hash_entry *hash;
8387904d 12110 struct ppc_link_hash_entry *fdh;
411e1bfb
AM		 12111 struct elf_link_hash_entry *h;
12112 Elf_Internal_Sym *sym;
721956f4
AM		 12113 char *stub_name;
12114 const asection *id_sec;
74f0fb50 12115 struct _opd_sec_data *opd;
e054468f 12116 struct plt_entry *plt_ent;
721956f4
AM		 12117
12118 r_type = ELF64_R_TYPE (irela->r_info);
12119 r_indx = ELF64_R_SYM (irela->r_info);
12120
4ce794b7 12121 if (r_type >= R_PPC64_max)
721956f4
AM		 12122 {
12123 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 12124 goto error_ret_free_internal;
721956f4
AM		 12125 }
12126
12127 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 12128 if (r_type != R_PPC64_REL24
12129 && r_type != R_PPC64_REL14
12130 && r_type != R_PPC64_REL14_BRTAKEN
12131 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 12132 continue;
12133
12134 /* Now determine the call target, its name, value,
12135 section. */
411e1bfb
AM		 12136 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
12137 r_indx, input_bfd))
12138 goto error_ret_free_internal;
12139 hash = (struct ppc_link_hash_entry *) h;
12140
8843416a 12141 ok_dest = FALSE;
8387904d 12142 fdh = NULL;
7fe2b9a6 12143 sym_value = 0;
411e1bfb 12144 if (hash == NULL)
721956f4 12145 {
411e1bfb 12146 sym_value = sym->st_value;
8843416a 12147 ok_dest = TRUE;
721956f4 12148 }
7fe2b9a6
AM		 12149 else if (hash->elf.root.type == bfd_link_hash_defined
12150 || hash->elf.root.type == bfd_link_hash_defweak)
12151 {
12152 sym_value = hash->elf.root.u.def.value;
12153 if (sym_sec->output_section != NULL)
12154 ok_dest = TRUE;
12155 }
12156 else if (hash->elf.root.type == bfd_link_hash_undefweak
12157 || hash->elf.root.type == bfd_link_hash_undefined)
721956f4 12158 {
99877b66 12159 /* Recognise an old ABI func code entry sym, and
7fe2b9a6
AM		 12160 use the func descriptor sym instead if it is
12161 defined. */
ceb1f1ef 12162 if (hash->elf.root.root.string[0] == '.'
b31867b6 12163 && (fdh = lookup_fdh (hash, htab)) != NULL)
8387904d 12164 {
8387904d
AM		 12165 if (fdh->elf.root.type == bfd_link_hash_defined
12166 || fdh->elf.root.type == bfd_link_hash_defweak)
12167 {
12168 sym_sec = fdh->elf.root.u.def.section;
12169 sym_value = fdh->elf.root.u.def.value;
12170 if (sym_sec->output_section != NULL)
12171 ok_dest = TRUE;
12172 }
99877b66
AM		 12173 else
12174 fdh = NULL;
8387904d 12175 }
7fe2b9a6
AM		 12176 }
12177 else
12178 {
12179 bfd_set_error (bfd_error_bad_value);
12180 goto error_ret_free_internal;
721956f4
AM		 12181 }
12182
8843416a 12183 destination = 0;
6911b7dc 12184 local_off = 0;
8843416a
AM		 12185 if (ok_dest)
12186 {
12187 sym_value += irela->r_addend;
12188 destination = (sym_value
12189 + sym_sec->output_offset
12190 + sym_sec->output_section->vma);
6911b7dc
AM		 12191 local_off = PPC64_LOCAL_ENTRY_OFFSET (hash
12192 ? hash->elf.other
12193 : sym->st_other);
8843416a
AM		 12194 }
12195
8387904d 12196 code_sec = sym_sec;
e054468f 12197 code_value = sym_value;
74f0fb50
AM		 12198 opd = get_opd_info (sym_sec);
12199 if (opd != NULL)
8387904d
AM		 12200 {
12201 bfd_vma dest;
12202
74f0fb50 12203 if (hash == NULL && opd->adjust != NULL)
8387904d 12204 {
51aecdc5 12205 long adjust = opd->adjust[OPD_NDX (sym_value)];
8387904d
AM		 12206 if (adjust == -1)
12207 continue;
e054468f 12208 code_value += adjust;
8387904d
AM		 12209 sym_value += adjust;
12210 }
12211 dest = opd_entry_value (sym_sec, sym_value,
aef36ac1 12212 &code_sec, &code_value, FALSE);
8387904d
AM		 12213 if (dest != (bfd_vma) -1)
12214 {
12215 destination = dest;
12216 if (fdh != NULL)
12217 {
12218 /* Fixup old ABI sym to point at code
12219 entry. */
99877b66 12220 hash->elf.root.type = bfd_link_hash_defweak;
8387904d 12221 hash->elf.root.u.def.section = code_sec;
e054468f 12222 hash->elf.root.u.def.value = code_value;
8387904d
AM		 12223 }
12224 }
12225 }
12226
721956f4 12227 /* Determine what (if any) linker stub is needed. */
e054468f 12228 plt_ent = NULL;
721956f4 12229 stub_type = ppc_type_of_stub (section, irela, &hash,
6911b7dc
AM		 12230 &plt_ent, destination,
12231 local_off);
ad8e1ba5
AM		 12232
12233 if (stub_type != ppc_stub_plt_call)
12234 {
12235 /* Check whether we need a TOC adjusting stub.
12236 Since the linker pastes together pieces from
12237 different object files when creating the
12238 _init and _fini functions, it may be that a
12239 call to what looks like a local sym is in
12240 fact a call needing a TOC adjustment. */
8387904d
AM		 12241 if (code_sec != NULL
12242 && code_sec->output_section != NULL
12243 && (htab->stub_group[code_sec->id].toc_off
9b5ecbd0 12244 != htab->stub_group[section->id].toc_off)
4c52953f
AM		 12245 && (code_sec->has_toc_reloc
12246 || code_sec->makes_toc_func_call))
ad8e1ba5
AM		 12247 stub_type = ppc_stub_long_branch_r2off;
12248 }
12249
721956f4
AM		 12250 if (stub_type == ppc_stub_none)
12251 continue;
12252
411e1bfb
AM		 12253 /* __tls_get_addr calls might be eliminated. */
12254 if (stub_type != ppc_stub_plt_call
12255 && hash != NULL
8387904d
AM		 12256 && (hash == htab->tls_get_addr
12257 || hash == htab->tls_get_addr_fd)
411e1bfb
AM		 12258 && section->has_tls_reloc
12259 && irela != internal_relocs)
12260 {
12261 /* Get tls info. */
f961d9dd 12262 unsigned char *tls_mask;
411e1bfb 12263
3a71aa26 12264 if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms,
411e1bfb
AM		 12265 irela - 1, input_bfd))
12266 goto error_ret_free_internal;
e7b938ca 12267 if (*tls_mask != 0)
411e1bfb
AM		 12268 continue;
12269 }
12270
3b421ab3
AM		 12271 if (stub_type == ppc_stub_plt_call
12272 && irela + 1 < irelaend
12273 && irela[1].r_offset == irela->r_offset + 4
794e51c0
AM		 12274 && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE)
12275 {
12276 if (!tocsave_find (htab, INSERT,
12277 &local_syms, irela + 1, input_bfd))
12278 goto error_ret_free_internal;
12279 }
12280 else if (stub_type == ppc_stub_plt_call)
12281 stub_type = ppc_stub_plt_call_r2save;
3b421ab3 12282
721956f4
AM		 12283 /* Support for grouping stub sections. */
12284 id_sec = htab->stub_group[section->id].link_sec;
12285
12286 /* Get the name of this stub. */
12287 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
12288 if (!stub_name)
12289 goto error_ret_free_internal;
12290
12291 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 12292 stub_name, FALSE, FALSE);
721956f4
AM		 12293 if (stub_entry != NULL)
12294 {
12295 /* The proper stub has already been created. */
12296 free (stub_name);
794e51c0
AM		 12297 if (stub_type == ppc_stub_plt_call_r2save)
12298 stub_entry->stub_type = stub_type;
721956f4
AM		 12299 continue;
12300 }
12301
25f53a85 12302 stub_entry = ppc_add_stub (stub_name, section, info);
721956f4
AM		 12303 if (stub_entry == NULL)
12304 {
12305 free (stub_name);
6cdc0ccc
AM		 12306 error_ret_free_internal:
12307 if (elf_section_data (section)->relocs == NULL)
12308 free (internal_relocs);
12309 error_ret_free_local:
12310 if (local_syms != NULL
12311 && (symtab_hdr->contents
12312 != (unsigned char *) local_syms))
12313 free (local_syms);
b34976b6 12314 return FALSE;
721956f4
AM		 12315 }
12316
ad8e1ba5 12317 stub_entry->stub_type = stub_type;
794e51c0
AM		 12318 if (stub_type != ppc_stub_plt_call
12319 && stub_type != ppc_stub_plt_call_r2save)
e054468f
AM		 12320 {
12321 stub_entry->target_value = code_value;
12322 stub_entry->target_section = code_sec;
12323 }
12324 else
12325 {
12326 stub_entry->target_value = sym_value;
12327 stub_entry->target_section = sym_sec;
12328 }
721956f4 12329 stub_entry->h = hash;
e054468f 12330 stub_entry->plt_ent = plt_ent;
6911b7dc 12331 stub_entry->other = hash ? hash->elf.other : sym->st_other;
ee75fd95
AM		 12332
12333 if (stub_entry->h != NULL)
12334 htab->stub_globals += 1;
721956f4
AM		 12335 }
12336
12337 /* We're done with the internal relocs, free them. */
6cdc0ccc 12338 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 12339 free (internal_relocs);
721956f4 12340 }
6cdc0ccc
AM		 12341
12342 if (local_syms != NULL
12343 && symtab_hdr->contents != (unsigned char *) local_syms)
12344 {
12345 if (!info->keep_memory)
12346 free (local_syms);
12347 else
12348 symtab_hdr->contents = (unsigned char *) local_syms;
12349 }
721956f4
AM		 12350 }
12351
5c3dead3 12352 /* We may have added some stubs. Find out the new size of the
721956f4 12353 stub sections. */
e7d1c40c 12354 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 12355 stub_sec != NULL;
12356 stub_sec = stub_sec->next)
e717da7e 12357 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
ee75fd95 12358 {
5c3dead3 12359 stub_sec->rawsize = stub_sec->size;
ee75fd95
AM		 12360 stub_sec->size = 0;
12361 stub_sec->reloc_count = 0;
84f5d08e 12362 stub_sec->flags &= ~SEC_RELOC;
ee75fd95 12363 }
eea6121a
AM		 12364
12365 htab->brlt->size = 0;
84f5d08e
AM		 12366 htab->brlt->reloc_count = 0;
12367 htab->brlt->flags &= ~SEC_RELOC;
ee75fd95 12368 if (htab->relbrlt != NULL)
eea6121a 12369 htab->relbrlt->size = 0;
721956f4 12370
63bc6f6c 12371 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4 12372
176a0d42
AM		 12373 if (info->emitrelocations
12374 && htab->glink != NULL && htab->glink->size != 0)
12375 {
12376 htab->glink->reloc_count = 1;
12377 htab->glink->flags |= SEC_RELOC;
12378 }
12379
58d180e8
AM		 12380 if (htab->glink_eh_frame != NULL
12381 && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
9a2a56cc 12382 && htab->glink_eh_frame->output_section->size != 0)
58d180e8 12383 {
4bbe044a 12384 size_t size = 0, align;
58d180e8 12385
e7d1c40c 12386 for (stub_sec = htab->params->stub_bfd->sections;
58d180e8
AM		 12387 stub_sec != NULL;
12388 stub_sec = stub_sec->next)
12389 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
da44f4e5 12390 size += 24;
58d180e8
AM		 12391 if (htab->glink != NULL && htab->glink->size != 0)
12392 size += 24;
12393 if (size != 0)
12394 size += sizeof (glink_eh_frame_cie);
4bbe044a
AM		 12395 align = 1;
12396 align <<= htab->glink_eh_frame->output_section->alignment_power;
12397 align -= 1;
12398 size = (size + align) & ~align;
58d180e8
AM		 12399 htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size;
12400 htab->glink_eh_frame->size = size;
12401 }
12402
e7d1c40c
AM		 12403 if (htab->params->plt_stub_align != 0)
12404 for (stub_sec = htab->params->stub_bfd->sections;
794e51c0
AM		 12405 stub_sec != NULL;
12406 stub_sec = stub_sec->next)
12407 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
e7d1c40c
AM		 12408 stub_sec->size = ((stub_sec->size
12409 + (1 << htab->params->plt_stub_align) - 1)
12410 & (-1 << htab->params->plt_stub_align));
794e51c0 12411
e7d1c40c 12412 for (stub_sec = htab->params->stub_bfd->sections;
5c3dead3
AM		 12413 stub_sec != NULL;
12414 stub_sec = stub_sec->next)
12415 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
12416 && stub_sec->rawsize != stub_sec->size)
12417 break;
12418
12419 /* Exit from this loop when no stubs have been added, and no stubs
12420 have changed size. */
58d180e8
AM		 12421 if (stub_sec == NULL
12422 && (htab->glink_eh_frame == NULL
12423 || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size))
5c3dead3
AM		 12424 break;
12425
721956f4 12426 /* Ask the linker to do its stuff. */
e7d1c40c 12427 (*htab->params->layout_sections_again) ();
721956f4
AM		 12428 }
12429
da44f4e5
AM		 12430 if (htab->glink_eh_frame != NULL
12431 && htab->glink_eh_frame->size != 0)
12432 {
12433 bfd_vma val;
12434 bfd_byte *p, *last_fde;
12435 size_t last_fde_len, size, align, pad;
12436 asection *stub_sec;
12437
12438 p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size);
12439 if (p == NULL)
12440 return FALSE;
12441 htab->glink_eh_frame->contents = p;
12442 last_fde = p;
12443
12444 memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
12445 /* CIE length (rewrite in case little-endian). */
12446 last_fde_len = sizeof (glink_eh_frame_cie) - 4;
12447 bfd_put_32 (htab->elf.dynobj, last_fde_len, p);
12448 p += sizeof (glink_eh_frame_cie);
12449
12450 for (stub_sec = htab->params->stub_bfd->sections;
12451 stub_sec != NULL;
12452 stub_sec = stub_sec->next)
12453 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12454 {
12455 last_fde = p;
12456 last_fde_len = 20;
12457 /* FDE length. */
12458 bfd_put_32 (htab->elf.dynobj, 20, p);
12459 p += 4;
12460 /* CIE pointer. */
12461 val = p - htab->glink_eh_frame->contents;
12462 bfd_put_32 (htab->elf.dynobj, val, p);
12463 p += 4;
12464 /* Offset to stub section, written later. */
12465 p += 4;
12466 /* stub section size. */
12467 bfd_put_32 (htab->elf.dynobj, stub_sec->size, p);
12468 p += 4;
12469 /* Augmentation. */
12470 p += 1;
12471 /* Pad. */
12472 p += 7;
12473 }
12474 if (htab->glink != NULL && htab->glink->size != 0)
12475 {
12476 last_fde = p;
12477 last_fde_len = 20;
12478 /* FDE length. */
12479 bfd_put_32 (htab->elf.dynobj, 20, p);
12480 p += 4;
12481 /* CIE pointer. */
12482 val = p - htab->glink_eh_frame->contents;
12483 bfd_put_32 (htab->elf.dynobj, val, p);
12484 p += 4;
12485 /* Offset to .glink, written later. */
12486 p += 4;
12487 /* .glink size. */
12488 bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p);
12489 p += 4;
12490 /* Augmentation. */
12491 p += 1;
12492
12493 *p++ = DW_CFA_advance_loc + 1;
12494 *p++ = DW_CFA_register;
12495 *p++ = 65;
12496 *p++ = 12;
12497 *p++ = DW_CFA_advance_loc + 4;
12498 *p++ = DW_CFA_restore_extended;
12499 *p++ = 65;
12500 }
12501 /* Subsume any padding into the last FDE if user .eh_frame
12502 sections are aligned more than glink_eh_frame. Otherwise any
12503 zero padding will be seen as a terminator. */
12504 size = p - htab->glink_eh_frame->contents;
12505 align = 1;
12506 align <<= htab->glink_eh_frame->output_section->alignment_power;
12507 align -= 1;
12508 pad = ((size + align) & ~align) - size;
12509 htab->glink_eh_frame->size = size + pad;
12510 bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde);
12511 }
12512
d969d15f
AM		 12513 maybe_strip_output (info, htab->brlt);
12514 if (htab->glink_eh_frame != NULL)
12515 maybe_strip_output (info, htab->glink_eh_frame);
721956f4 12516
b34976b6 12517 return TRUE;
721956f4
AM		 12518}
12519
12520/* Called after we have determined section placement. If sections
805fc799 12521 move, we'll be called again. Provide a value for TOCstart. */
721956f4 12522
805fc799 12523bfd_vma
1c865ab2 12524ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd)
721956f4 12525{
805fc799
AM		 12526 asection *s;
12527 bfd_vma TOCstart;
721956f4 12528
805fc799
AM		 12529 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
12530 order. The TOC starts where the first of these sections starts. */
12531 s = bfd_get_section_by_name (obfd, ".got");
e054468f 12532 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12533 s = bfd_get_section_by_name (obfd, ".toc");
e054468f 12534 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12535 s = bfd_get_section_by_name (obfd, ".tocbss");
e054468f 12536 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 12537 s = bfd_get_section_by_name (obfd, ".plt");
e054468f 12538 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799
AM		 12539 {
12540 /* This may happen for
12541 o references to TOC base (SYM@toc / TOC[tc0]) without a
12542 .toc directive
12543 o bad linker script
12544 o --gc-sections and empty TOC sections
12545
12546 FIXME: Warn user? */
12547
12548 /* Look for a likely section. We probably won't even be
12549 using TOCstart. */
12550 for (s = obfd->sections; s != NULL; s = s->next)
e054468f
AM		 12551 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY
12552 | SEC_EXCLUDE))
805fc799
AM		 12553 == (SEC_ALLOC | SEC_SMALL_DATA))
12554 break;
721956f4 12555 if (s == NULL)
805fc799 12556 for (s = obfd->sections; s != NULL; s = s->next)
e054468f 12557 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE))
805fc799
AM		 12558 == (SEC_ALLOC | SEC_SMALL_DATA))
12559 break;
721956f4 12560 if (s == NULL)
805fc799 12561 for (s = obfd->sections; s != NULL; s = s->next)
e054468f
AM		 12562 if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE))
12563 == SEC_ALLOC)
805fc799 12564 break;
721956f4 12565 if (s == NULL)
805fc799 12566 for (s = obfd->sections; s != NULL; s = s->next)
e054468f 12567 if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC)
805fc799
AM		 12568 break;
12569 }
721956f4 12570
805fc799
AM		 12571 TOCstart = 0;
12572 if (s != NULL)
12573 TOCstart = s->output_section->vma + s->output_offset;
721956f4 12574
1c865ab2
AM		 12575 _bfd_set_gp_value (obfd, TOCstart);
12576
810d4e75 12577 if (info != NULL && s != NULL)
1c865ab2
AM		 12578 {
12579 struct ppc_link_hash_table *htab = ppc_hash_table (info);
12580
810d4e75
AM		 12581 if (htab != NULL)
12582 {
12583 if (htab->elf.hgot != NULL)
12584 {
12585 htab->elf.hgot->root.u.def.value = TOC_BASE_OFF;
12586 htab->elf.hgot->root.u.def.section = s;
12587 }
12588 }
12589 else
1c865ab2 12590 {
810d4e75
AM		 12591 struct bfd_link_hash_entry *bh = NULL;
12592 _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL,
12593 s, TOC_BASE_OFF, NULL, FALSE,
12594 FALSE, &bh);
1c865ab2
AM		 12595 }
12596 }
805fc799 12597 return TOCstart;
721956f4
AM		 12598}
12599
a345bc8d
AM		 12600/* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to
12601 write out any global entry stubs. */
12602
12603static bfd_boolean
12604build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf)
12605{
12606 struct bfd_link_info *info;
12607 struct ppc_link_hash_table *htab;
12608 struct plt_entry *pent;
12609 asection *s;
12610
12611 if (h->root.type == bfd_link_hash_indirect)
12612 return TRUE;
12613
12614 if (!h->pointer_equality_needed)
12615 return TRUE;
12616
12617 if (h->def_regular)
12618 return TRUE;
12619
12620 info = inf;
12621 htab = ppc_hash_table (info);
12622 if (htab == NULL)
12623 return FALSE;
12624
12625 s = htab->glink;
12626 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
12627 if (pent->plt.offset != (bfd_vma) -1
12628 && pent->addend == 0)
12629 {
12630 bfd_byte *p;
12631 asection *plt;
12632 bfd_vma off;
12633
a345bc8d 12634 p = s->contents + h->root.u.def.value;
33e44f2e 12635 plt = htab->elf.splt;
a345bc8d
AM		 12636 if (!htab->elf.dynamic_sections_created
12637 || h->dynindx == -1)
33e44f2e 12638 plt = htab->elf.iplt;
a345bc8d
AM		 12639 off = pent->plt.offset + plt->output_offset + plt->output_section->vma;
12640 off -= h->root.u.def.value + s->output_offset + s->output_section->vma;
12641
12642 if (off + 0x80008000 > 0xffffffff || (off & 3) != 0)
12643 {
12644 info->callbacks->einfo
12645 (_("%P: linkage table error against `%T'\n"),
12646 h->root.root.string);
12647 bfd_set_error (bfd_error_bad_value);
12648 htab->stub_error = TRUE;
12649 }
12650
7341d5e2
AM		 12651 htab->stub_count[ppc_stub_global_entry - 1] += 1;
12652 if (htab->params->emit_stub_syms)
12653 {
12654 size_t len = strlen (h->root.root.string);
12655 char *name = bfd_malloc (sizeof "12345678.global_entry." + len);
12656
12657 if (name == NULL)
12658 return FALSE;
12659
12660 sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string);
12661 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
12662 if (h == NULL)
12663 return FALSE;
12664 if (h->root.type == bfd_link_hash_new)
12665 {
12666 h->root.type = bfd_link_hash_defined;
12667 h->root.u.def.section = s;
12668 h->root.u.def.value = p - s->contents;
12669 h->ref_regular = 1;
12670 h->def_regular = 1;
12671 h->ref_regular_nonweak = 1;
12672 h->forced_local = 1;
12673 h->non_elf = 0;
2ec55de3 12674 h->root.linker_def = 1;
7341d5e2
AM		 12675 }
12676 }
12677
a345bc8d
AM		 12678 if (PPC_HA (off) != 0)
12679 {
12680 bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p);
12681 p += 4;
12682 }
12683 bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p);
12684 p += 4;
12685 bfd_put_32 (s->owner, MTCTR_R12, p);
12686 p += 4;
12687 bfd_put_32 (s->owner, BCTR, p);
12688 break;
12689 }
12690 return TRUE;
12691}
12692
721956f4
AM		 12693/* Build all the stubs associated with the current output file.
12694 The stubs are kept in a hash table attached to the main linker
12695 hash table. This function is called via gldelf64ppc_finish. */
12696
b34976b6 12697bfd_boolean
e7d1c40c 12698ppc64_elf_build_stubs (struct bfd_link_info *info,
4ce794b7 12699 char **stats)
5d1634d7
AM		 12700{
12701 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 12702 asection *stub_sec;
5d1634d7 12703 bfd_byte *p;
e717da7e 12704 int stub_sec_count = 0;
5d1634d7 12705
4dfe6ac6
NC		 12706 if (htab == NULL)
12707 return FALSE;
12708
eea6121a 12709 /* Allocate memory to hold the linker stubs. */
e7d1c40c 12710 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 12711 stub_sec != NULL;
12712 stub_sec = stub_sec->next)
eea6121a
AM		 12713 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
12714 && stub_sec->size != 0)
e717da7e 12715 {
e7d1c40c 12716 stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size);
eea6121a
AM		 12717 if (stub_sec->contents == NULL)
12718 return FALSE;
12719 /* We want to check that built size is the same as calculated
12720 size. rawsize is a convenient location to use. */
12721 stub_sec->rawsize = stub_sec->size;
12722 stub_sec->size = 0;
e717da7e 12723 }
5d1634d7 12724
23eb7e01 12725 if (htab->glink != NULL && htab->glink->size != 0)
5d1634d7 12726 {
9f951329 12727 unsigned int indx;
ad8e1ba5 12728 bfd_vma plt0;
9f951329 12729
721956f4 12730 /* Build the .glink plt call stub. */
e7d1c40c 12731 if (htab->params->emit_stub_syms)
97b639ba
AM		 12732 {
12733 struct elf_link_hash_entry *h;
468392fb
AM		 12734 h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
12735 TRUE, FALSE, FALSE);
97b639ba
AM		 12736 if (h == NULL)
12737 return FALSE;
12738 if (h->root.type == bfd_link_hash_new)
12739 {
12740 h->root.type = bfd_link_hash_defined;
12741 h->root.u.def.section = htab->glink;
ee4bf8d2 12742 h->root.u.def.value = 8;
f5385ebf
AM		 12743 h->ref_regular = 1;
12744 h->def_regular = 1;
12745 h->ref_regular_nonweak = 1;
12746 h->forced_local = 1;
12747 h->non_elf = 0;
2ec55de3 12748 h->root.linker_def = 1;
97b639ba
AM		 12749 }
12750 }
33e44f2e
AM		 12751 plt0 = (htab->elf.splt->output_section->vma
12752 + htab->elf.splt->output_offset
12753 - 16);
176a0d42
AM		 12754 if (info->emitrelocations)
12755 {
12756 Elf_Internal_Rela *r = get_relocs (htab->glink, 1);
12757 if (r == NULL)
12758 return FALSE;
12759 r->r_offset = (htab->glink->output_offset
12760 + htab->glink->output_section->vma);
12761 r->r_info = ELF64_R_INFO (0, R_PPC64_REL64);
12762 r->r_addend = plt0;
12763 }
4ce794b7 12764 p = htab->glink->contents;
176a0d42 12765 plt0 -= htab->glink->output_section->vma + htab->glink->output_offset;
ee4bf8d2
AM		 12766 bfd_put_64 (htab->glink->owner, plt0, p);
12767 p += 8;
b9e5796b
AM		 12768 if (htab->opd_abi)
12769 {
12770 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
12771 p += 4;
12772 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
12773 p += 4;
12774 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
12775 p += 4;
12776 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
12777 p += 4;
12778 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
12779 p += 4;
12780 bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
12781 p += 4;
12782 bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
12783 p += 4;
12784 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p);
12785 p += 4;
12786 bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
12787 p += 4;
12788 bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p);
12789 p += 4;
12790 }
12791 else
12792 {
12793 bfd_put_32 (htab->glink->owner, MFLR_R0, p);
12794 p += 4;
12795 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
12796 p += 4;
12797 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
12798 p += 4;
12799 bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
12800 p += 4;
12801 bfd_put_32 (htab->glink->owner, MTLR_R0, p);
12802 p += 4;
12803 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
12804 p += 4;
12805 bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
12806 p += 4;
12807 bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p);
12808 p += 4;
12809 bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
12810 p += 4;
12811 bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p);
12812 p += 4;
12813 bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
12814 p += 4;
12815 bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p);
12816 p += 4;
12817 }
4ce794b7 12818 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5 12819 p += 4;
ee4bf8d2
AM		 12820 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
12821 {
12822 bfd_put_32 (htab->glink->owner, NOP, p);
12823 p += 4;
12824 }
ad8e1ba5 12825
9f951329
AM		 12826 /* Build the .glink lazy link call stubs. */
12827 indx = 0;
a345bc8d 12828 while (p < htab->glink->contents + htab->glink->rawsize)
9f951329 12829 {
b9e5796b 12830 if (htab->opd_abi)
9f951329 12831 {
b9e5796b
AM		 12832 if (indx < 0x8000)
12833 {
12834 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
12835 p += 4;
12836 }
12837 else
12838 {
12839 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
12840 p += 4;
12841 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx),
12842 p);
12843 p += 4;
12844 }
9f951329 12845 }
4ce794b7 12846 bfd_put_32 (htab->glink->owner,
ee4bf8d2 12847 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
a16d5acb 12848 indx++;
9f951329
AM		 12849 p += 4;
12850 }
a345bc8d
AM		 12851
12852 /* Build .glink global entry stubs. */
12853 if (htab->glink->size > htab->glink->rawsize)
afe397ea 12854 elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info);
5d1634d7 12855 }
5d1634d7 12856
7341d5e2 12857 if (htab->brlt != NULL && htab->brlt->size != 0)
721956f4 12858 {
4ce794b7 12859 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 12860 htab->brlt->size);
4ce794b7 12861 if (htab->brlt->contents == NULL)
b34976b6 12862 return FALSE;
721956f4 12863 }
ee75fd95 12864 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
63bc6f6c
AM		 12865 {
12866 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 12867 htab->relbrlt->size);
63bc6f6c
AM		 12868 if (htab->relbrlt->contents == NULL)
12869 return FALSE;
12870 }
5d1634d7 12871
721956f4
AM		 12872 /* Build the stubs as directed by the stub hash table. */
12873 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 12874
aa8a7074
AM		 12875 if (htab->relbrlt != NULL)
12876 htab->relbrlt->reloc_count = 0;
12877
e7d1c40c
AM		 12878 if (htab->params->plt_stub_align != 0)
12879 for (stub_sec = htab->params->stub_bfd->sections;
794e51c0
AM		 12880 stub_sec != NULL;
12881 stub_sec = stub_sec->next)
12882 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
e7d1c40c
AM		 12883 stub_sec->size = ((stub_sec->size
12884 + (1 << htab->params->plt_stub_align) - 1)
12885 & (-1 << htab->params->plt_stub_align));
794e51c0 12886
e7d1c40c 12887 for (stub_sec = htab->params->stub_bfd->sections;
721956f4
AM		 12888 stub_sec != NULL;
12889 stub_sec = stub_sec->next)
e717da7e
AM		 12890 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
12891 {
12892 stub_sec_count += 1;
eea6121a 12893 if (stub_sec->rawsize != stub_sec->size)
e717da7e
AM		 12894 break;
12895 }
5d1634d7 12896
da44f4e5
AM		 12897 /* Note that the glink_eh_frame check here is not only testing that
12898 the generated size matched the calculated size but also that
12899 bfd_elf_discard_info didn't make any changes to the section. */
721956f4 12900 if (stub_sec != NULL
58d180e8
AM		 12901 || (htab->glink_eh_frame != NULL
12902 && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size))
5d1634d7 12903 {
b34976b6 12904 htab->stub_error = TRUE;
8de848d8 12905 info->callbacks->einfo (_("%P: stubs don't match calculated size\n"));
5d1634d7 12906 }
721956f4 12907
d2a300cf
AM		 12908 if (htab->stub_error)
12909 return FALSE;
12910
12911 if (stats != NULL)
12912 {
12913 *stats = bfd_malloc (500);
12914 if (*stats == NULL)
12915 return FALSE;
12916
ee75fd95 12917 sprintf (*stats, _("linker stubs in %u group%s\n"
d2a300cf
AM		 12918 " branch %lu\n"
12919 " toc adjust %lu\n"
12920 " long branch %lu\n"
12921 " long toc adj %lu\n"
794e51c0 12922 " plt call %lu\n"
7341d5e2
AM		 12923 " plt call toc %lu\n"
12924 " global entry %lu"),
e717da7e 12925 stub_sec_count,
ee75fd95 12926 stub_sec_count == 1 ? "" : "s",
4ce794b7
AM		 12927 htab->stub_count[ppc_stub_long_branch - 1],
12928 htab->stub_count[ppc_stub_long_branch_r2off - 1],
12929 htab->stub_count[ppc_stub_plt_branch - 1],
12930 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
794e51c0 12931 htab->stub_count[ppc_stub_plt_call - 1],
7341d5e2
AM		 12932 htab->stub_count[ppc_stub_plt_call_r2save - 1],
12933 htab->stub_count[ppc_stub_global_entry - 1]);
d2a300cf
AM		 12934 }
12935 return TRUE;
5bd4f169
AM		 12936}
12937
99877b66
AM		 12938/* This function undoes the changes made by add_symbol_adjust. */
12939
12940static bfd_boolean
12941undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
12942{
12943 struct ppc_link_hash_entry *eh;
12944
12945 if (h->root.type == bfd_link_hash_indirect)
12946 return TRUE;
12947
99877b66
AM		 12948 eh = (struct ppc_link_hash_entry *) h;
12949 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
12950 return TRUE;
12951
12952 eh->elf.root.type = bfd_link_hash_undefined;
12953 return TRUE;
12954}
12955
12956void
12957ppc64_elf_restore_symbols (struct bfd_link_info *info)
12958{
12959 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4dfe6ac6
NC		 12960
12961 if (htab != NULL)
12962 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
99877b66
AM		 12963}
12964
60124e18
AM		 12965/* What to do when ld finds relocations against symbols defined in
12966 discarded sections. */
12967
12968static unsigned int
12969ppc64_elf_action_discarded (asection *sec)
12970{
12971 if (strcmp (".opd", sec->name) == 0)
12972 return 0;
12973
12974 if (strcmp (".toc", sec->name) == 0)
12975 return 0;
12976
bce50a28
JJ		 12977 if (strcmp (".toc1", sec->name) == 0)
12978 return 0;
12979
60124e18
AM		 12980 return _bfd_elf_default_action_discarded (sec);
12981}
12982
5bd4f169
AM		 12983/* The RELOCATE_SECTION function is called by the ELF backend linker
12984 to handle the relocations for a section.
12985
12986 The relocs are always passed as Rela structures; if the section
12987 actually uses Rel structures, the r_addend field will always be
12988 zero.
12989
12990 This function is responsible for adjust the section contents as
12991 necessary, and (if using Rela relocs and generating a
1049f94e 12992 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 12993 necessary.
12994
12995 This function does not have to worry about setting the reloc
12996 address or the reloc symbol index.
12997
12998 LOCAL_SYMS is a pointer to the swapped in local symbols.
12999
13000 LOCAL_SECTIONS is an array giving the section in the input file
13001 corresponding to the st_shndx field of each local symbol.
13002
13003 The global hash table entry for the global symbols can be found
13004 via elf_sym_hashes (input_bfd).
13005
1049f94e 13006 When generating relocatable output, this function must handle
5bd4f169
AM		 13007 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
13008 going to be the section symbol corresponding to the output
13009 section, which means that the addend must be adjusted
13010 accordingly. */
13011
b34976b6 13012static bfd_boolean
4ce794b7
AM		 13013ppc64_elf_relocate_section (bfd *output_bfd,
13014 struct bfd_link_info *info,
13015 bfd *input_bfd,
13016 asection *input_section,
13017 bfd_byte *contents,
13018 Elf_Internal_Rela *relocs,
13019 Elf_Internal_Sym *local_syms,
13020 asection **local_sections)
5bd4f169 13021{
65f38f15 13022 struct ppc_link_hash_table *htab;
5bd4f169
AM		 13023 Elf_Internal_Shdr *symtab_hdr;
13024 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 13025 Elf_Internal_Rela *rel;
13026 Elf_Internal_Rela *relend;
411e1bfb
AM		 13027 Elf_Internal_Rela outrel;
13028 bfd_byte *loc;
411e1bfb 13029 struct got_entry **local_got_ents;
5bd4f169 13030 bfd_vma TOCstart;
b34976b6
AM		 13031 bfd_boolean ret = TRUE;
13032 bfd_boolean is_opd;
794e51c0
AM		 13033 /* Assume 'at' branch hints. */
13034 bfd_boolean is_isa_v2 = TRUE;
4fe5ca5b 13035 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
5bd4f169 13036
65f38f15 13037 /* Initialize howto table if needed. */
5bd4f169 13038 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 13039 ppc_howto_init ();
13040
65f38f15 13041 htab = ppc_hash_table (info);
4dfe6ac6
NC		 13042 if (htab == NULL)
13043 return FALSE;
ee75fd95
AM		 13044
13045 /* Don't relocate stub sections. */
e7d1c40c 13046 if (input_section->owner == htab->params->stub_bfd)
ee75fd95
AM		 13047 return TRUE;
13048
0c8d6e5c 13049 BFD_ASSERT (is_ppc64_elf (input_bfd));
0ffa91dd 13050
411e1bfb 13051 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 13052 TOCstart = elf_gp (output_bfd);
0ffa91dd 13053 symtab_hdr = &elf_symtab_hdr (input_bfd);
5bd4f169 13054 sym_hashes = elf_sym_hashes (input_bfd);
7c8fe5c4 13055 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
65f38f15 13056
5bd4f169
AM		 13057 rel = relocs;
13058 relend = relocs + input_section->reloc_count;
13059 for (; rel < relend; rel++)
13060 {
04c9666a 13061 enum elf_ppc64_reloc_type r_type;
31c76678 13062 bfd_vma addend;
5bd4f169
AM		 13063 bfd_reloc_status_type r;
13064 Elf_Internal_Sym *sym;
13065 asection *sec;
039b3fef
AM		 13066 struct elf_link_hash_entry *h_elf;
13067 struct ppc_link_hash_entry *h;
13068 struct ppc_link_hash_entry *fdh;
5bd4f169 13069 const char *sym_name;
0d4792f7 13070 unsigned long r_symndx, toc_symndx;
3a71aa26 13071 bfd_vma toc_addend;
f961d9dd
AM		 13072 unsigned char tls_mask, tls_gd, tls_type;
13073 unsigned char sym_type;
5bd4f169 13074 bfd_vma relocation;
b34976b6
AM		 13075 bfd_boolean unresolved_reloc;
13076 bfd_boolean warned;
bc30df16 13077 enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest;
67f0cbdb 13078 unsigned int insn;
e11840f9 13079 unsigned int mask;
721956f4
AM		 13080 struct ppc_stub_hash_entry *stub_entry;
13081 bfd_vma max_br_offset;
13082 bfd_vma from;
31c76678 13083 const Elf_Internal_Rela orig_rel = *rel;
b80eed39
AM		 13084 reloc_howto_type *howto;
13085 struct reloc_howto_struct alt_howto;
5bd4f169 13086
4ce794b7 13087 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 13088 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 13089
13090 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
13091 symbol of the previous ADDR64 reloc. The symbol gives us the
13092 proper TOC base to use. */
13093 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
13094 && rel != relocs
13095 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
13096 && is_opd)
13097 r_symndx = ELF64_R_SYM (rel[-1].r_info);
13098
4ce794b7
AM		 13099 sym = NULL;
13100 sec = NULL;
039b3fef 13101 h_elf = NULL;
4ce794b7 13102 sym_name = NULL;
b34976b6
AM		 13103 unresolved_reloc = FALSE;
13104 warned = FALSE;
65f38f15 13105
0b13192e 13106 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 13107 {
13108 /* It's a local symbol. */
74f0fb50 13109 struct _opd_sec_data *opd;
4025353c 13110
5bd4f169
AM		 13111 sym = local_syms + r_symndx;
13112 sec = local_sections[r_symndx];
26c61ae5 13113 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
0d4792f7 13114 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 13115 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
74f0fb50
AM		 13116 opd = get_opd_info (sec);
13117 if (opd != NULL && opd->adjust != NULL)
1e2f5b6e 13118 {
51aecdc5
AM		 13119 long adjust = opd->adjust[OPD_NDX (sym->st_value
13120 + rel->r_addend)];
4025353c
AM		 13121 if (adjust == -1)
13122 relocation = 0;
13123 else
4cc603a5
AM		 13124 {
13125 /* If this is a relocation against the opd section sym
13126 and we have edited .opd, adjust the reloc addend so
13127 that ld -r and ld --emit-relocs output is correct.
13128 If it is a reloc against some other .opd symbol,
13129 then the symbol value will be adjusted later. */
13130 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
13131 rel->r_addend += adjust;
13132 else
13133 relocation += adjust;
13134 }
1e2f5b6e 13135 }
5bd4f169
AM		 13136 }
13137 else
13138 {
62d887d4
L		 13139 bfd_boolean ignored;
13140
b2a8e766
AM		 13141 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
13142 r_symndx, symtab_hdr, sym_hashes,
039b3fef 13143 h_elf, sec, relocation,
62d887d4 13144 unresolved_reloc, warned, ignored);
039b3fef
AM		 13145 sym_name = h_elf->root.root.string;
13146 sym_type = h_elf->type;
b69fdb4e
AM		 13147 if (sec != NULL
13148 && sec->owner == output_bfd
13149 && strcmp (sec->name, ".opd") == 0)
13150 {
13151 /* This is a symbol defined in a linker script. All
13152 such are defined in output sections, even those
13153 defined by simple assignment from a symbol defined in
13154 an input section. Transfer the symbol to an
13155 appropriate input .opd section, so that a branch to
13156 this symbol will be mapped to the location specified
13157 by the opd entry. */
13158 struct bfd_link_order *lo;
13159 for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next)
13160 if (lo->type == bfd_indirect_link_order)
13161 {
13162 asection *isec = lo->u.indirect.section;
13163 if (h_elf->root.u.def.value >= isec->output_offset
13164 && h_elf->root.u.def.value < (isec->output_offset
13165 + isec->size))
13166 {
13167 h_elf->root.u.def.value -= isec->output_offset;
13168 h_elf->root.u.def.section = isec;
13169 sec = isec;
13170 break;
13171 }
13172 }
13173 }
5bd4f169 13174 }
039b3fef 13175 h = (struct ppc_link_hash_entry *) h_elf;
5bd4f169 13176
dbaa2011 13177 if (sec != NULL && discarded_section (sec))
e4067dbb 13178 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b
MR		 13179 rel, 1, relend,
13180 ppc64_elf_howto_table[r_type], 0,
e4067dbb 13181 contents);
ab96bf03
AM		 13182
13183 if (info->relocatable)
13184 continue;
13185
f40da81b
AM		 13186 if (h != NULL && &h->elf == htab->elf.hgot)
13187 {
13188 relocation = (TOCstart
13189 + htab->stub_group[input_section->id].toc_off);
13190 sec = bfd_abs_section_ptr;
13191 unresolved_reloc = FALSE;
13192 }
13193
951fd09b
AM		 13194 /* TLS optimizations. Replace instruction sequences and relocs
13195 based on information we collected in tls_optimize. We edit
13196 RELOCS so that --emit-relocs will output something sensible
13197 for the final instruction stream. */
13198 tls_mask = 0;
13199 tls_gd = 0;
0d4792f7 13200 toc_symndx = 0;
727fc41e
AM		 13201 if (h != NULL)
13202 tls_mask = h->tls_mask;
13203 else if (local_got_ents != NULL)
411e1bfb 13204 {
e054468f
AM		 13205 struct plt_entry **local_plt = (struct plt_entry **)
13206 (local_got_ents + symtab_hdr->sh_info);
f961d9dd 13207 unsigned char *lgot_masks = (unsigned char *)
e054468f 13208 (local_plt + symtab_hdr->sh_info);
727fc41e
AM		 13209 tls_mask = lgot_masks[r_symndx];
13210 }
13211 if (tls_mask == 0
13212 && (r_type == R_PPC64_TLS
13213 || r_type == R_PPC64_TLSGD
13214 || r_type == R_PPC64_TLSLD))
13215 {
13216 /* Check for toc tls entries. */
f961d9dd 13217 unsigned char *toc_tls;
0d4792f7 13218
727fc41e
AM		 13219 if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
13220 &local_syms, rel, input_bfd))
13221 return FALSE;
0d4792f7 13222
727fc41e
AM		 13223 if (toc_tls)
13224 tls_mask = *toc_tls;
0d4792f7
AM		 13225 }
13226
13227 /* Check that tls relocs are used with tls syms, and non-tls
13228 relocs are used with non-tls syms. */
cf35638d 13229 if (r_symndx != STN_UNDEF
0d4792f7
AM		 13230 && r_type != R_PPC64_NONE
13231 && (h == NULL
039b3fef
AM		 13232 || h->elf.root.type == bfd_link_hash_defined
13233 || h->elf.root.type == bfd_link_hash_defweak)
1d483afe
AM		 13234 && (IS_PPC64_TLS_RELOC (r_type)
13235 != (sym_type == STT_TLS
13236 || (sym_type == STT_SECTION
13237 && (sec->flags & SEC_THREAD_LOCAL) != 0))))
0d4792f7 13238 {
727fc41e
AM		 13239 if (tls_mask != 0
13240 && (r_type == R_PPC64_TLS
13241 || r_type == R_PPC64_TLSGD
13242 || r_type == R_PPC64_TLSLD))
0d4792f7
AM		 13243 /* R_PPC64_TLS is OK against a symbol in the TOC. */
13244 ;
13245 else
25f53a85 13246 info->callbacks->einfo
1d483afe 13247 (!IS_PPC64_TLS_RELOC (r_type)
bc30df16
AM		 13248 ? _("%P: %H: %s used with TLS symbol `%T'\n")
13249 : _("%P: %H: %s used with non-TLS symbol `%T'\n"),
25f53a85 13250 input_bfd, input_section, rel->r_offset,
0d4792f7
AM		 13251 ppc64_elf_howto_table[r_type]->name,
13252 sym_name);
411e1bfb
AM		 13253 }
13254
13255 /* Ensure reloc mapping code below stays sane. */
13256 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
13257 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
13258 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
13259 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
13260 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
13261 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
13262 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
13263 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
13264 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
13265 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
13266 abort ();
0d4792f7 13267
411e1bfb
AM		 13268 switch (r_type)
13269 {
13270 default:
411e1bfb
AM		 13271 break;
13272
ba761f19
AM		 13273 case R_PPC64_LO_DS_OPT:
13274 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
13275 if ((insn & (0x3f << 26)) != 58u << 26)
13276 abort ();
13277 insn += (14u << 26) - (58u << 26);
13278 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
13279 r_type = R_PPC64_TOC16_LO;
13280 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13281 break;
13282
411e1bfb
AM		 13283 case R_PPC64_TOC16:
13284 case R_PPC64_TOC16_LO:
13285 case R_PPC64_TOC16_DS:
13286 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 13287 {
13288 /* Check for toc tls entries. */
f961d9dd 13289 unsigned char *toc_tls;
951fd09b 13290 int retval;
411e1bfb 13291
3a71aa26
AM		 13292 retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
13293 &local_syms, rel, input_bfd);
951fd09b 13294 if (retval == 0)
411e1bfb
AM		 13295 return FALSE;
13296
13297 if (toc_tls)
13298 {
951fd09b 13299 tls_mask = *toc_tls;
411e1bfb
AM		 13300 if (r_type == R_PPC64_TOC16_DS
13301 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 13302 {
13303 if (tls_mask != 0
13304 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
13305 goto toctprel;
13306 }
411e1bfb 13307 else
951fd09b
AM		 13308 {
13309 /* If we found a GD reloc pair, then we might be
13310 doing a GD->IE transition. */
13311 if (retval == 2)
13312 {
13313 tls_gd = TLS_TPRELGD;
13314 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 13315 goto tls_ldgd_opt;
951fd09b
AM		 13316 }
13317 else if (retval == 3)
13318 {
13319 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
102890f0 13320 goto tls_ldgd_opt;
951fd09b
AM		 13321 }
13322 }
411e1bfb
AM		 13323 }
13324 }
13325 break;
13326
9d6ded02
AM		 13327 case R_PPC64_GOT_TPREL16_HI:
13328 case R_PPC64_GOT_TPREL16_HA:
13329 if (tls_mask != 0
13330 && (tls_mask & TLS_TPREL) == 0)
13331 {
13332 rel->r_offset -= d_offset;
13333 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
13334 r_type = R_PPC64_NONE;
13335 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13336 }
13337 break;
13338
411e1bfb
AM		 13339 case R_PPC64_GOT_TPREL16_DS:
13340 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 13341 if (tls_mask != 0
13342 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 13343 {
81407a69 13344 toctprel:
4fe5ca5b 13345 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
411e1bfb
AM		 13346 insn &= 31 << 21;
13347 insn |= 0x3c0d0000; /* addis 0,13,0 */
4fe5ca5b 13348 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
411e1bfb 13349 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 13350 if (toc_symndx != 0)
13351 {
13352 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
3a71aa26 13353 rel->r_addend = toc_addend;
0d4792f7
AM		 13354 /* We changed the symbol. Start over in order to
13355 get h, sym, sec etc. right. */
13356 rel--;
13357 continue;
13358 }
13359 else
13360 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13361 }
13362 break;
13363
13364 case R_PPC64_TLS:
951fd09b
AM		 13365 if (tls_mask != 0
13366 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 13367 {
411e1bfb 13368 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
2d0f3896
AM		 13369 insn = _bfd_elf_ppc_at_tls_transform (insn, 13);
13370 if (insn == 0)
411e1bfb 13371 abort ();
411e1bfb 13372 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb 13373 /* Was PPC64_TLS which sits on insn boundary, now
4fe5ca5b
GM		 13374 PPC64_TPREL16_LO which is at low-order half-word. */
13375 rel->r_offset += d_offset;
0d4792f7
AM		 13376 r_type = R_PPC64_TPREL16_LO;
13377 if (toc_symndx != 0)
13378 {
13379 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
3a71aa26 13380 rel->r_addend = toc_addend;
0d4792f7
AM		 13381 /* We changed the symbol. Start over in order to
13382 get h, sym, sec etc. right. */
13383 rel--;
13384 continue;
13385 }
13386 else
13387 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13388 }
13389 break;
13390
411e1bfb
AM		 13391 case R_PPC64_GOT_TLSGD16_HI:
13392 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 13393 tls_gd = TLS_TPRELGD;
13394 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13395 goto tls_gdld_hi;
13396 break;
13397
411e1bfb
AM		 13398 case R_PPC64_GOT_TLSLD16_HI:
13399 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 13400 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 13401 {
951fd09b
AM		 13402 tls_gdld_hi:
13403 if ((tls_mask & tls_gd) != 0)
13404 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
13405 + R_PPC64_GOT_TPREL16_DS);
13406 else
411e1bfb 13407 {
4fe5ca5b 13408 rel->r_offset -= d_offset;
727ac201 13409 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
951fd09b 13410 r_type = R_PPC64_NONE;
411e1bfb 13411 }
951fd09b 13412 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 13413 }
13414 break;
13415
951fd09b
AM		 13416 case R_PPC64_GOT_TLSGD16:
13417 case R_PPC64_GOT_TLSGD16_LO:
13418 tls_gd = TLS_TPRELGD;
13419 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 13420 goto tls_ldgd_opt;
951fd09b 13421 break;
411e1bfb 13422
951fd09b
AM		 13423 case R_PPC64_GOT_TLSLD16:
13424 case R_PPC64_GOT_TLSLD16_LO:
13425 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13426 {
3a71aa26 13427 unsigned int insn1, insn2, insn3;
102890f0
AM		 13428 bfd_vma offset;
13429
13430 tls_ldgd_opt:
727fc41e
AM		 13431 offset = (bfd_vma) -1;
13432 /* If not using the newer R_PPC64_TLSGD/LD to mark
13433 __tls_get_addr calls, we must trust that the call
13434 stays with its arg setup insns, ie. that the next
13435 reloc is the __tls_get_addr call associated with
13436 the current reloc. Edit both insns. */
13437 if (input_section->has_tls_get_addr_call
13438 && rel + 1 < relend
13439 && branch_reloc_hash_match (input_bfd, rel + 1,
13440 htab->tls_get_addr,
13441 htab->tls_get_addr_fd))
13442 offset = rel[1].r_offset;
b86ac8e3
AM		 13443 /* We read the low GOT_TLS (or TOC16) insn because we
13444 need to keep the destination reg. It may be
13445 something other than the usual r3, and moved to r3
13446 before the call by intervening code. */
13447 insn1 = bfd_get_32 (output_bfd,
13448 contents + rel->r_offset - d_offset);
102890f0 13449 if ((tls_mask & tls_gd) != 0)
411e1bfb 13450 {
102890f0 13451 /* IE */
b86ac8e3 13452 insn1 &= (0x1f << 21) | (0x1f << 16);
102890f0
AM		 13453 insn1 |= 58 << 26; /* ld */
13454 insn2 = 0x7c636a14; /* add 3,3,13 */
727fc41e 13455 if (offset != (bfd_vma) -1)
f58d5a2d 13456 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
102890f0
AM		 13457 if ((tls_mask & TLS_EXPLICIT) == 0)
13458 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
13459 + R_PPC64_GOT_TPREL16_DS);
411e1bfb 13460 else
102890f0
AM		 13461 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
13462 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13463 }
13464 else
13465 {
13466 /* LE */
b86ac8e3
AM		 13467 insn1 &= 0x1f << 21;
13468 insn1 |= 0x3c0d0000; /* addis r,13,0 */
102890f0
AM		 13469 insn2 = 0x38630000; /* addi 3,3,0 */
13470 if (tls_gd == 0)
951fd09b 13471 {
102890f0 13472 /* Was an LD reloc. */
1d483afe
AM		 13473 if (toc_symndx)
13474 sec = local_sections[toc_symndx];
13475 for (r_symndx = 0;
13476 r_symndx < symtab_hdr->sh_info;
13477 r_symndx++)
13478 if (local_sections[r_symndx] == sec)
13479 break;
13480 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 13481 r_symndx = STN_UNDEF;
102890f0 13482 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 13483 if (r_symndx != STN_UNDEF)
1d483afe
AM		 13484 rel->r_addend -= (local_syms[r_symndx].st_value
13485 + sec->output_offset
13486 + sec->output_section->vma);
951fd09b 13487 }
102890f0 13488 else if (toc_symndx != 0)
3a71aa26
AM		 13489 {
13490 r_symndx = toc_symndx;
13491 rel->r_addend = toc_addend;
13492 }
102890f0
AM		 13493 r_type = R_PPC64_TPREL16_HA;
13494 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
727fc41e
AM		 13495 if (offset != (bfd_vma) -1)
13496 {
13497 rel[1].r_info = ELF64_R_INFO (r_symndx,
13498 R_PPC64_TPREL16_LO);
13499 rel[1].r_offset = offset + d_offset;
13500 rel[1].r_addend = rel->r_addend;
13501 }
102890f0 13502 }
3a71aa26
AM		 13503 bfd_put_32 (output_bfd, insn1,
13504 contents + rel->r_offset - d_offset);
727fc41e
AM		 13505 if (offset != (bfd_vma) -1)
13506 {
13507 insn3 = bfd_get_32 (output_bfd,
13508 contents + offset + 4);
13509 if (insn3 == NOP
13510 || insn3 == CROR_151515 || insn3 == CROR_313131)
13511 {
13512 rel[1].r_offset += 4;
13513 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13514 insn2 = NOP;
13515 }
13516 bfd_put_32 (output_bfd, insn2, contents + offset);
13517 }
13518 if ((tls_mask & tls_gd) == 0
13519 && (tls_gd == 0 || toc_symndx != 0))
13520 {
13521 /* We changed the symbol. Start over in order
13522 to get h, sym, sec etc. right. */
13523 rel--;
13524 continue;
13525 }
13526 }
13527 break;
13528
13529 case R_PPC64_TLSGD:
13530 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
13531 {
13532 unsigned int insn2, insn3;
13533 bfd_vma offset = rel->r_offset;
13534
13535 if ((tls_mask & TLS_TPRELGD) != 0)
13536 {
13537 /* IE */
13538 r_type = R_PPC64_NONE;
13539 insn2 = 0x7c636a14; /* add 3,3,13 */
13540 }
13541 else
13542 {
13543 /* LE */
13544 if (toc_symndx != 0)
13545 {
13546 r_symndx = toc_symndx;
13547 rel->r_addend = toc_addend;
13548 }
13549 r_type = R_PPC64_TPREL16_LO;
13550 rel->r_offset = offset + d_offset;
13551 insn2 = 0x38630000; /* addi 3,3,0 */
13552 }
13553 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13554 /* Zap the reloc on the _tls_get_addr call too. */
13555 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 13556 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
3a71aa26
AM		 13557 insn3 = bfd_get_32 (output_bfd,
13558 contents + offset + 4);
102890f0
AM		 13559 if (insn3 == NOP
13560 || insn3 == CROR_151515 || insn3 == CROR_313131)
13561 {
727fc41e 13562 rel->r_offset += 4;
3a71aa26
AM		 13563 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13564 insn2 = NOP;
102890f0 13565 }
102890f0 13566 bfd_put_32 (output_bfd, insn2, contents + offset);
727fc41e 13567 if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0)
102890f0 13568 {
102890f0
AM		 13569 rel--;
13570 continue;
411e1bfb 13571 }
411e1bfb 13572 }
411e1bfb
AM		 13573 break;
13574
727fc41e
AM		 13575 case R_PPC64_TLSLD:
13576 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
13577 {
13578 unsigned int insn2, insn3;
13579 bfd_vma offset = rel->r_offset;
13580
13581 if (toc_symndx)
13582 sec = local_sections[toc_symndx];
13583 for (r_symndx = 0;
13584 r_symndx < symtab_hdr->sh_info;
13585 r_symndx++)
13586 if (local_sections[r_symndx] == sec)
13587 break;
13588 if (r_symndx >= symtab_hdr->sh_info)
cf35638d 13589 r_symndx = STN_UNDEF;
727fc41e 13590 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
cf35638d 13591 if (r_symndx != STN_UNDEF)
727fc41e
AM		 13592 rel->r_addend -= (local_syms[r_symndx].st_value
13593 + sec->output_offset
13594 + sec->output_section->vma);
13595
13596 r_type = R_PPC64_TPREL16_LO;
13597 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13598 rel->r_offset = offset + d_offset;
13599 /* Zap the reloc on the _tls_get_addr call too. */
13600 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 13601 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
727fc41e
AM		 13602 insn2 = 0x38630000; /* addi 3,3,0 */
13603 insn3 = bfd_get_32 (output_bfd,
13604 contents + offset + 4);
13605 if (insn3 == NOP
13606 || insn3 == CROR_151515 || insn3 == CROR_313131)
13607 {
13608 rel->r_offset += 4;
13609 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
13610 insn2 = NOP;
13611 }
13612 bfd_put_32 (output_bfd, insn2, contents + offset);
13613 rel--;
13614 continue;
13615 }
13616 break;
13617
411e1bfb 13618 case R_PPC64_DTPMOD64:
951fd09b
AM		 13619 if (rel + 1 < relend
13620 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
13621 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 13622 {
951fd09b
AM		 13623 if ((tls_mask & TLS_GD) == 0)
13624 {
13625 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
13626 if ((tls_mask & TLS_TPRELGD) != 0)
13627 r_type = R_PPC64_TPREL64;
13628 else
13629 {
4ce794b7 13630 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 13631 r_type = R_PPC64_NONE;
13632 }
13633 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13634 }
13635 }
13636 else
13637 {
13638 if ((tls_mask & TLS_LD) == 0)
411e1bfb 13639 {
4ce794b7 13640 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 13641 r_type = R_PPC64_NONE;
951fd09b 13642 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 13643 }
411e1bfb
AM		 13644 }
13645 break;
13646
13647 case R_PPC64_TPREL64:
951fd09b 13648 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 13649 {
13650 r_type = R_PPC64_NONE;
13651 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13652 }
13653 break;
52a82034
AM		 13654
13655 case R_PPC64_REL16_HA:
13656 /* If we are generating a non-PIC executable, edit
13657 . 0: addis 2,12,.TOC.-0b@ha
13658 . addi 2,2,.TOC.-0b@l
13659 used by ELFv2 global entry points to set up r2, to
13660 . lis 2,.TOC.@ha
13661 . addi 2,2,.TOC.@l
13662 if .TOC. is in range. */
13663 if (!info->shared
810d4e75 13664 && !info->traditional_format
52a82034
AM		 13665 && h != NULL && &h->elf == htab->elf.hgot
13666 && rel + 1 < relend
13667 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO)
13668 && rel[1].r_offset == rel->r_offset + 4
13669 && rel[1].r_addend == rel->r_addend + 4
13670 && relocation + 0x80008000 <= 0xffffffff)
13671 {
13672 unsigned int insn1, insn2;
13673 bfd_vma offset = rel->r_offset - d_offset;
13674 insn1 = bfd_get_32 (output_bfd, contents + offset);
13675 insn2 = bfd_get_32 (output_bfd, contents + offset + 4);
13676 if ((insn1 & 0xffff0000) == 0x3c4c0000 /* addis 2,12 */
13677 && (insn2 & 0xffff0000) == 0x38420000 /* addi 2,2 */)
13678 {
13679 r_type = R_PPC64_ADDR16_HA;
13680 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
13681 rel->r_addend -= d_offset;
13682 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO);
13683 rel[1].r_addend -= d_offset + 4;
13684 bfd_put_32 (output_bfd, 0x3c400000, contents + offset);
13685 }
13686 }
13687 break;
411e1bfb
AM		 13688 }
13689
13690 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 13691 insn = 0;
b25116a9
AM		 13692 max_br_offset = 1 << 25;
13693 addend = rel->r_addend;
bc30df16 13694 reloc_dest = DEST_NORMAL;
65f38f15 13695 switch (r_type)
5bd4f169
AM		 13696 {
13697 default:
65f38f15 13698 break;
5bd4f169 13699
3b421ab3
AM		 13700 case R_PPC64_TOCSAVE:
13701 if (relocation + addend == (rel->r_offset
13702 + input_section->output_offset
13703 + input_section->output_section->vma)
13704 && tocsave_find (htab, NO_INSERT,
13705 &local_syms, rel, input_bfd))
13706 {
13707 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
13708 if (insn == NOP
13709 || insn == CROR_151515 || insn == CROR_313131)
a078d95a
AM		 13710 bfd_put_32 (input_bfd,
13711 STD_R2_0R1 + STK_TOC (htab),
3b421ab3
AM		 13712 contents + rel->r_offset);
13713 }
13714 break;
13715
65f38f15
AM		 13716 /* Branch taken prediction relocations. */
13717 case R_PPC64_ADDR14_BRTAKEN:
13718 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 13719 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
13720 /* Fall thru. */
65f38f15 13721
86c76c7b 13722 /* Branch not taken prediction relocations. */
65f38f15
AM		 13723 case R_PPC64_ADDR14_BRNTAKEN:
13724 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 13725 insn |= bfd_get_32 (output_bfd,
13726 contents + rel->r_offset) & ~(0x01 << 21);
b25116a9 13727 /* Fall thru. */
86c76c7b 13728
b25116a9
AM		 13729 case R_PPC64_REL14:
13730 max_br_offset = 1 << 15;
13731 /* Fall thru. */
5bd4f169 13732
65f38f15 13733 case R_PPC64_REL24:
ad8e1ba5
AM		 13734 /* Calls to functions with a different TOC, such as calls to
13735 shared objects, need to alter the TOC pointer. This is
13736 done using a linkage stub. A REL24 branching to these
13737 linkage stubs needs to be followed by a nop, as the nop
13738 will be replaced with an instruction to restore the TOC
13739 base pointer. */
8387904d 13740 fdh = h;
b31867b6
AM		 13741 if (h != NULL
13742 && h->oh != NULL
13743 && h->oh->is_func_descriptor)
13744 fdh = ppc_follow_link (h->oh);
31c76678
DK		 13745 stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel,
13746 htab);
6abec6bc 13747 if (stub_entry != NULL
ad8e1ba5 13748 && (stub_entry->stub_type == ppc_stub_plt_call
794e51c0 13749 || stub_entry->stub_type == ppc_stub_plt_call_r2save
ad8e1ba5
AM		 13750 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
13751 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 13752 {
b25116a9 13753 bfd_boolean can_plt_call = FALSE;
721956f4 13754
ba8ca3e7
AM		 13755 /* All of these stubs will modify r2, so there must be a
13756 branch and link followed by a nop. The nop is
13757 replaced by an insn to restore r2. */
eea6121a 13758 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 13759 {
ba8ca3e7
AM		 13760 unsigned long br;
13761
13762 br = bfd_get_32 (input_bfd,
13763 contents + rel->r_offset);
13764 if ((br & 1) != 0)
41bd81ab 13765 {
ba8ca3e7
AM		 13766 unsigned long nop;
13767
13768 nop = bfd_get_32 (input_bfd,
13769 contents + rel->r_offset + 4);
13770 if (nop == NOP
13771 || nop == CROR_151515 || nop == CROR_313131)
a7f2871e 13772 {
ba8ca3e7
AM		 13773 if (h != NULL
13774 && (h == htab->tls_get_addr_fd
13775 || h == htab->tls_get_addr)
e7d1c40c 13776 && !htab->params->no_tls_get_addr_opt)
ba8ca3e7
AM		 13777 {
13778 /* Special stub used, leave nop alone. */
13779 }
13780 else
a078d95a
AM		 13781 bfd_put_32 (input_bfd,
13782 LD_R2_0R1 + STK_TOC (htab),
ba8ca3e7
AM		 13783 contents + rel->r_offset + 4);
13784 can_plt_call = TRUE;
a7f2871e 13785 }
41bd81ab 13786 }
5bd4f169 13787 }
721956f4 13788
ba8ca3e7 13789 if (!can_plt_call && h != NULL)
721956f4 13790 {
ba8ca3e7
AM		 13791 const char *name = h->elf.root.root.string;
13792
13793 if (*name == '.')
13794 ++name;
13795
13796 if (strncmp (name, "__libc_start_main", 17) == 0
13797 && (name[17] == 0 || name[17] == '@'))
6ab189d5 13798 {
ba8ca3e7
AM		 13799 /* Allow crt1 branch to go via a toc adjusting
13800 stub. Other calls that never return could do
13801 the same, if we could detect such. */
b25116a9 13802 can_plt_call = TRUE;
6ab189d5 13803 }
ba8ca3e7
AM		 13804 }
13805
13806 if (!can_plt_call)
13807 {
13808 /* g++ as of 20130507 emits self-calls without a
13809 following nop. This is arguably wrong since we
13810 have conflicting information. On the one hand a
13811 global symbol and on the other a local call
13812 sequence, but don't error for this special case.
13813 It isn't possible to cheaply verify we have
13814 exactly such a call. Allow all calls to the same
13815 section. */
13816 asection *code_sec = sec;
13817
13818 if (get_opd_info (sec) != NULL)
ad8e1ba5 13819 {
ba8ca3e7
AM		 13820 bfd_vma off = (relocation + addend
13821 - sec->output_section->vma
13822 - sec->output_offset);
bc30df16 13823
ba8ca3e7 13824 opd_entry_value (sec, off, &code_sec, NULL, FALSE);
ad8e1ba5 13825 }
ba8ca3e7
AM		 13826 if (code_sec == input_section)
13827 can_plt_call = TRUE;
13828 }
13829
13830 if (!can_plt_call)
13831 {
4805fc55
AM		 13832 if (stub_entry->stub_type == ppc_stub_plt_call
13833 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
13834 info->callbacks->einfo
13835 (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
13836 "recompile with -fPIC\n"),
13837 input_bfd, input_section, rel->r_offset, sym_name);
13838 else
13839 info->callbacks->einfo
13840 (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
13841 "(-mcmodel=small toc adjust stub)\n"),
13842 input_bfd, input_section, rel->r_offset, sym_name);
ba8ca3e7
AM		 13843
13844 bfd_set_error (bfd_error_bad_value);
13845 ret = FALSE;
721956f4
AM		 13846 }
13847
b25116a9 13848 if (can_plt_call
794e51c0
AM		 13849 && (stub_entry->stub_type == ppc_stub_plt_call
13850 || stub_entry->stub_type == ppc_stub_plt_call_r2save))
b25116a9
AM		 13851 unresolved_reloc = FALSE;
13852 }
13853
6abec6bc
AM		 13854 if ((stub_entry == NULL
13855 || stub_entry->stub_type == ppc_stub_long_branch
13856 || stub_entry->stub_type == ppc_stub_plt_branch)
8387904d
AM		 13857 && get_opd_info (sec) != NULL)
13858 {
13859 /* The branch destination is the value of the opd entry. */
4cc603a5
AM		 13860 bfd_vma off = (relocation + addend
13861 - sec->output_section->vma
13862 - sec->output_offset);
aef36ac1 13863 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE);
8387904d
AM		 13864 if (dest != (bfd_vma) -1)
13865 {
13866 relocation = dest;
13867 addend = 0;
bc30df16 13868 reloc_dest = DEST_OPD;
8387904d
AM		 13869 }
13870 }
13871
b25116a9
AM		 13872 /* If the branch is out of reach we ought to have a long
13873 branch stub. */
13874 from = (rel->r_offset
13875 + input_section->output_offset
13876 + input_section->output_section->vma);
13877
6911b7dc
AM		 13878 relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh
13879 ? fdh->elf.other
13880 : sym->st_other);
13881
6abec6bc
AM		 13882 if (stub_entry != NULL
13883 && (stub_entry->stub_type == ppc_stub_long_branch
13884 || stub_entry->stub_type == ppc_stub_plt_branch)
13885 && (r_type == R_PPC64_ADDR14_BRTAKEN
13886 || r_type == R_PPC64_ADDR14_BRNTAKEN
13887 || (relocation + addend - from + max_br_offset
13888 < 2 * max_br_offset)))
13889 /* Don't use the stub if this branch is in range. */
13890 stub_entry = NULL;
b25116a9
AM		 13891
13892 if (stub_entry != NULL)
13893 {
13894 /* Munge up the value and addend so that we call the stub
13895 rather than the procedure directly. */
13896 relocation = (stub_entry->stub_offset
13897 + stub_entry->stub_sec->output_offset
13898 + stub_entry->stub_sec->output_section->vma);
13899 addend = 0;
bc30df16 13900 reloc_dest = DEST_STUB;
3b421ab3 13901
794e51c0
AM		 13902 if ((stub_entry->stub_type == ppc_stub_plt_call
13903 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
13904 && (ALWAYS_EMIT_R2SAVE
13905 || stub_entry->stub_type == ppc_stub_plt_call_r2save)
3b421ab3
AM		 13906 && rel + 1 < relend
13907 && rel[1].r_offset == rel->r_offset + 4
13908 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE)
13909 relocation += 4;
b25116a9
AM		 13910 }
13911
13912 if (insn != 0)
13913 {
794e51c0 13914 if (is_isa_v2)
721956f4 13915 {
b25116a9
AM		 13916 /* Set 'a' bit. This is 0b00010 in BO field for branch
13917 on CR(BI) insns (BO == 001at or 011at), and 0b01000
13918 for branch on CTR insns (BO == 1a00t or 1a01t). */
13919 if ((insn & (0x14 << 21)) == (0x04 << 21))
13920 insn |= 0x02 << 21;
13921 else if ((insn & (0x14 << 21)) == (0x10 << 21))
13922 insn |= 0x08 << 21;
13923 else
13924 break;
13925 }
13926 else
13927 {
13928 /* Invert 'y' bit if not the default. */
4cc603a5 13929 if ((bfd_signed_vma) (relocation + addend - from) < 0)
b25116a9 13930 insn ^= 0x01 << 21;
721956f4 13931 }
b25116a9
AM		 13932
13933 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5bd4f169 13934 }
e86ce104 13935
06da1e8e
AM		 13936 /* NOP out calls to undefined weak functions.
13937 We can thus call a weak function without first
13938 checking whether the function is defined. */
b25116a9 13939 else if (h != NULL
039b3fef 13940 && h->elf.root.type == bfd_link_hash_undefweak
766bc656 13941 && h->elf.dynindx == -1
b25116a9
AM		 13942 && r_type == R_PPC64_REL24
13943 && relocation == 0
4cc603a5 13944 && addend == 0)
e86ce104 13945 {
06da1e8e
AM		 13946 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
13947 continue;
e86ce104 13948 }
65f38f15
AM		 13949 break;
13950 }
5bd4f169 13951
65f38f15 13952 /* Set `addend'. */
411e1bfb 13953 tls_type = 0;
65f38f15
AM		 13954 switch (r_type)
13955 {
13956 default:
25f53a85 13957 info->callbacks->einfo
bc30df16 13958 (_("%P: %B: unknown relocation type %d for `%T'\n"),
d003868e 13959 input_bfd, (int) r_type, sym_name);
5bd4f169 13960
65f38f15 13961 bfd_set_error (bfd_error_bad_value);
b34976b6 13962 ret = FALSE;
65f38f15 13963 continue;
5bd4f169 13964
65f38f15 13965 case R_PPC64_NONE:
411e1bfb 13966 case R_PPC64_TLS:
727fc41e
AM		 13967 case R_PPC64_TLSGD:
13968 case R_PPC64_TLSLD:
3b421ab3 13969 case R_PPC64_TOCSAVE:
04c9666a
AM		 13970 case R_PPC64_GNU_VTINHERIT:
13971 case R_PPC64_GNU_VTENTRY:
65f38f15 13972 continue;
5bd4f169
AM		 13973
13974 /* GOT16 relocations. Like an ADDR16 using the symbol's
13975 address in the GOT as relocation value instead of the
411e1bfb 13976 symbol's value itself. Also, create a GOT entry for the
5bd4f169 13977 symbol and put the symbol value there. */
411e1bfb
AM		 13978 case R_PPC64_GOT_TLSGD16:
13979 case R_PPC64_GOT_TLSGD16_LO:
13980 case R_PPC64_GOT_TLSGD16_HI:
13981 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 13982 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 13983 goto dogot;
13984
13985 case R_PPC64_GOT_TLSLD16:
13986 case R_PPC64_GOT_TLSLD16_LO:
13987 case R_PPC64_GOT_TLSLD16_HI:
13988 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 13989 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 13990 goto dogot;
13991
13992 case R_PPC64_GOT_TPREL16_DS:
13993 case R_PPC64_GOT_TPREL16_LO_DS:
13994 case R_PPC64_GOT_TPREL16_HI:
13995 case R_PPC64_GOT_TPREL16_HA:
13996 tls_type = TLS_TLS | TLS_TPREL;
13997 goto dogot;
13998
13999 case R_PPC64_GOT_DTPREL16_DS:
14000 case R_PPC64_GOT_DTPREL16_LO_DS:
14001 case R_PPC64_GOT_DTPREL16_HI:
14002 case R_PPC64_GOT_DTPREL16_HA:
14003 tls_type = TLS_TLS | TLS_DTPREL;
14004 goto dogot;
14005
65f38f15
AM		 14006 case R_PPC64_GOT16:
14007 case R_PPC64_GOT16_LO:
14008 case R_PPC64_GOT16_HI:
14009 case R_PPC64_GOT16_HA:
14010 case R_PPC64_GOT16_DS:
14011 case R_PPC64_GOT16_LO_DS:
411e1bfb 14012 dogot:
5bd4f169
AM		 14013 {
14014 /* Relocation is to the entry for this symbol in the global
14015 offset table. */
e717da7e 14016 asection *got;
d881513a 14017 bfd_vma *offp;
5bd4f169 14018 bfd_vma off;
d881513a 14019 unsigned long indx = 0;
927be08e 14020 struct got_entry *ent;
65f38f15 14021
d881513a
AM		 14022 if (tls_type == (TLS_TLS | TLS_LD)
14023 && (h == NULL
f5385ebf 14024 || !h->elf.def_dynamic))
927be08e 14025 ent = ppc64_tlsld_got (input_bfd);
411e1bfb 14026 else
5bd4f169 14027 {
5bd4f169 14028
d881513a
AM		 14029 if (h != NULL)
14030 {
14031 bfd_boolean dyn = htab->elf.dynamic_sections_created;
039b3fef
AM		 14032 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
14033 &h->elf)
d881513a 14034 || (info->shared
afe397ea 14035 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
d881513a
AM		 14036 /* This is actually a static link, or it is a
14037 -Bsymbolic link and the symbol is defined
14038 locally, or the symbol was forced to be local
14039 because of a version file. */
14040 ;
14041 else
14042 {
14acf4dc 14043 BFD_ASSERT (h->elf.dynindx != -1);
039b3fef 14044 indx = h->elf.dynindx;
d881513a
AM		 14045 unresolved_reloc = FALSE;
14046 }
039b3fef 14047 ent = h->elf.got.glist;
d881513a 14048 }
411e1bfb 14049 else
5bd4f169 14050 {
d881513a
AM		 14051 if (local_got_ents == NULL)
14052 abort ();
14053 ent = local_got_ents[r_symndx];
5bd4f169 14054 }
d881513a
AM		 14055
14056 for (; ent != NULL; ent = ent->next)
31c76678 14057 if (ent->addend == orig_rel.r_addend
e717da7e 14058 && ent->owner == input_bfd
d881513a
AM		 14059 && ent->tls_type == tls_type)
14060 break;
5bd4f169 14061 }
411e1bfb 14062
927be08e
AM		 14063 if (ent == NULL)
14064 abort ();
14065 if (ent->is_indirect)
14066 ent = ent->got.ent;
14067 offp = &ent->got.offset;
14068 got = ppc64_elf_tdata (ent->owner)->got;
e717da7e
AM		 14069 if (got == NULL)
14070 abort ();
14071
411e1bfb
AM		 14072 /* The offset must always be a multiple of 8. We use the
14073 least significant bit to record whether we have already
14074 processed this entry. */
d881513a 14075 off = *offp;
411e1bfb
AM		 14076 if ((off & 1) != 0)
14077 off &= ~1;
5bd4f169
AM		 14078 else
14079 {
411e1bfb
AM		 14080 /* Generate relocs for the dynamic linker, except in
14081 the case of TLSLD where we'll use one entry per
14082 module. */
25f23106
AM		 14083 asection *relgot;
14084 bfd_boolean ifunc;
e717da7e 14085
d881513a 14086 *offp = off | 1;
25f23106
AM		 14087 relgot = NULL;
14088 ifunc = (h != NULL
14089 ? h->elf.type == STT_GNU_IFUNC
14090 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC);
19e08130 14091 if (ifunc)
33e44f2e 14092 relgot = htab->elf.irelplt;
19e08130
AM		 14093 else if ((info->shared || indx != 0)
14094 && (h == NULL
14095 || (tls_type == (TLS_TLS | TLS_LD)
14096 && !h->elf.def_dynamic)
14097 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
14098 || h->elf.root.type != bfd_link_hash_undefweak))
14099 relgot = ppc64_elf_tdata (ent->owner)->relgot;
25f23106 14100 if (relgot != NULL)
5bd4f169 14101 {
e717da7e
AM		 14102 outrel.r_offset = (got->output_section->vma
14103 + got->output_offset
411e1bfb 14104 + off);
4cc603a5 14105 outrel.r_addend = addend;
d881513a 14106 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 14107 {
411e1bfb 14108 outrel.r_addend = 0;
e515b051 14109 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 14110 if (tls_type == (TLS_TLS | TLS_GD))
14111 {
e717da7e
AM		 14112 loc = relgot->contents;
14113 loc += (relgot->reloc_count++
d881513a
AM		 14114 * sizeof (Elf64_External_Rela));
14115 bfd_elf64_swap_reloca_out (output_bfd,
14116 &outrel, loc);
e515b051 14117 outrel.r_offset += 8;
4cc603a5 14118 outrel.r_addend = addend;
d881513a
AM		 14119 outrel.r_info
14120 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 14121 }
411e1bfb 14122 }
951fd09b 14123 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 14124 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 14125 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 14126 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
25f23106
AM		 14127 else if (indx != 0)
14128 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
14129 else
81407a69 14130 {
25f23106
AM		 14131 if (ifunc)
14132 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14133 else
14134 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 14135
14136 /* Write the .got section contents for the sake
14137 of prelink. */
e717da7e 14138 loc = got->contents + off;
23fbd6fa
JJ		 14139 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
14140 loc);
81407a69 14141 }
81407a69
AM		 14142
14143 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 14144 {
14145 outrel.r_addend += relocation;
14146 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
989f9879
AM		 14147 {
14148 if (htab->elf.tls_sec == NULL)
14149 outrel.r_addend = 0;
14150 else
14151 outrel.r_addend -= htab->elf.tls_sec->vma;
14152 }
e515b051 14153 }
e717da7e
AM		 14154 loc = relgot->contents;
14155 loc += (relgot->reloc_count++
411e1bfb
AM		 14156 * sizeof (Elf64_External_Rela));
14157 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
14158 }
14159
ad8e1ba5 14160 /* Init the .got section contents here if we're not
81407a69 14161 emitting a reloc. */
d881513a 14162 else
411e1bfb 14163 {
4cc603a5 14164 relocation += addend;
7b609f53
AM		 14165 if (tls_type == (TLS_TLS | TLS_LD))
14166 relocation = 1;
14167 else if (tls_type != 0)
411e1bfb 14168 {
989f9879
AM		 14169 if (htab->elf.tls_sec == NULL)
14170 relocation = 0;
14171 else
14172 {
14173 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
14174 if (tls_type == (TLS_TLS | TLS_TPREL))
14175 relocation += DTP_OFFSET - TP_OFFSET;
14176 }
5bd4f169 14177
7b609f53
AM		 14178 if (tls_type == (TLS_TLS | TLS_GD))
14179 {
14180 bfd_put_64 (output_bfd, relocation,
e717da7e 14181 got->contents + off + 8);
7b609f53
AM		 14182 relocation = 1;
14183 }
411e1bfb 14184 }
7b609f53 14185
411e1bfb 14186 bfd_put_64 (output_bfd, relocation,
e717da7e 14187 got->contents + off);
5bd4f169
AM		 14188 }
14189 }
14190
65f38f15
AM		 14191 if (off >= (bfd_vma) -2)
14192 abort ();
14193
bf102f86
AM		 14194 relocation = got->output_section->vma + got->output_offset + off;
14195 addend = -(TOCstart + htab->stub_group[input_section->id].toc_off);
5bd4f169 14196 }
65f38f15
AM		 14197 break;
14198
14199 case R_PPC64_PLT16_HA:
14200 case R_PPC64_PLT16_HI:
14201 case R_PPC64_PLT16_LO:
14202 case R_PPC64_PLT32:
14203 case R_PPC64_PLT64:
14204 /* Relocation is to the entry for this symbol in the
14205 procedure linkage table. */
14206
14207 /* Resolve a PLT reloc against a local symbol directly,
14208 without using the procedure linkage table. */
14209 if (h == NULL)
14210 break;
14211
411e1bfb
AM		 14212 /* It's possible that we didn't make a PLT entry for this
14213 symbol. This happens when statically linking PIC code,
14214 or when using -Bsymbolic. Go find a match if there is a
14215 PLT entry. */
33e44f2e 14216 if (htab->elf.splt != NULL)
65f38f15 14217 {
411e1bfb 14218 struct plt_entry *ent;
039b3fef 14219 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
a345bc8d
AM		 14220 if (ent->plt.offset != (bfd_vma) -1
14221 && ent->addend == orig_rel.r_addend)
411e1bfb 14222 {
33e44f2e
AM		 14223 relocation = (htab->elf.splt->output_section->vma
14224 + htab->elf.splt->output_offset
411e1bfb
AM		 14225 + ent->plt.offset);
14226 unresolved_reloc = FALSE;
a345bc8d 14227 break;
411e1bfb 14228 }
65f38f15 14229 }
65f38f15 14230 break;
5bd4f169 14231
0b13192e
AM		 14232 case R_PPC64_TOC:
14233 /* Relocation value is TOC base. */
14234 relocation = TOCstart;
cf35638d 14235 if (r_symndx == STN_UNDEF)
0b13192e 14236 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM		 14237 else if (unresolved_reloc)
14238 ;
14239 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM		 14240 relocation += htab->stub_group[sec->id].toc_off;
14241 else
14242 unresolved_reloc = TRUE;
ab96bf03 14243 goto dodyn;
0b13192e 14244
5bd4f169
AM		 14245 /* TOC16 relocs. We want the offset relative to the TOC base,
14246 which is the address of the start of the TOC plus 0x8000.
14247 The TOC consists of sections .got, .toc, .tocbss, and .plt,
14248 in this order. */
65f38f15
AM		 14249 case R_PPC64_TOC16:
14250 case R_PPC64_TOC16_LO:
14251 case R_PPC64_TOC16_HI:
14252 case R_PPC64_TOC16_DS:
14253 case R_PPC64_TOC16_LO_DS:
14254 case R_PPC64_TOC16_HA:
ad8e1ba5 14255 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 14256 break;
14257
14258 /* Relocate against the beginning of the section. */
65f38f15
AM		 14259 case R_PPC64_SECTOFF:
14260 case R_PPC64_SECTOFF_LO:
14261 case R_PPC64_SECTOFF_HI:
14262 case R_PPC64_SECTOFF_DS:
14263 case R_PPC64_SECTOFF_LO_DS:
14264 case R_PPC64_SECTOFF_HA:
4ce794b7 14265 if (sec != NULL)
65f38f15 14266 addend -= sec->output_section->vma;
5bd4f169
AM		 14267 break;
14268
25f23106
AM		 14269 case R_PPC64_REL16:
14270 case R_PPC64_REL16_LO:
14271 case R_PPC64_REL16_HI:
14272 case R_PPC64_REL16_HA:
14273 break;
14274
721956f4
AM		 14275 case R_PPC64_REL14:
14276 case R_PPC64_REL14_BRNTAKEN:
14277 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 14278 case R_PPC64_REL24:
14279 break;
14280
411e1bfb
AM		 14281 case R_PPC64_TPREL16:
14282 case R_PPC64_TPREL16_LO:
14283 case R_PPC64_TPREL16_HI:
14284 case R_PPC64_TPREL16_HA:
14285 case R_PPC64_TPREL16_DS:
14286 case R_PPC64_TPREL16_LO_DS:
f9c6b907
AM		 14287 case R_PPC64_TPREL16_HIGH:
14288 case R_PPC64_TPREL16_HIGHA:
411e1bfb
AM		 14289 case R_PPC64_TPREL16_HIGHER:
14290 case R_PPC64_TPREL16_HIGHERA:
14291 case R_PPC64_TPREL16_HIGHEST:
14292 case R_PPC64_TPREL16_HIGHESTA:
766bc656
AM		 14293 if (h != NULL
14294 && h->elf.root.type == bfd_link_hash_undefweak
14295 && h->elf.dynindx == -1)
14296 {
14297 /* Make this relocation against an undefined weak symbol
14298 resolve to zero. This is really just a tweak, since
14299 code using weak externs ought to check that they are
14300 defined before using them. */
14301 bfd_byte *p = contents + rel->r_offset - d_offset;
14302
14303 insn = bfd_get_32 (output_bfd, p);
14304 insn = _bfd_elf_ppc_at_tprel_transform (insn, 13);
14305 if (insn != 0)
14306 bfd_put_32 (output_bfd, insn, p);
14307 break;
14308 }
989f9879
AM		 14309 if (htab->elf.tls_sec != NULL)
14310 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 14311 if (info->shared)
14312 /* The TPREL16 relocs shouldn't really be used in shared
14313 libs as they will result in DT_TEXTREL being set, but
14314 support them anyway. */
14315 goto dodyn;
14316 break;
14317
14318 case R_PPC64_DTPREL16:
14319 case R_PPC64_DTPREL16_LO:
14320 case R_PPC64_DTPREL16_HI:
14321 case R_PPC64_DTPREL16_HA:
14322 case R_PPC64_DTPREL16_DS:
14323 case R_PPC64_DTPREL16_LO_DS:
f9c6b907
AM		 14324 case R_PPC64_DTPREL16_HIGH:
14325 case R_PPC64_DTPREL16_HIGHA:
411e1bfb
AM		 14326 case R_PPC64_DTPREL16_HIGHER:
14327 case R_PPC64_DTPREL16_HIGHERA:
14328 case R_PPC64_DTPREL16_HIGHEST:
14329 case R_PPC64_DTPREL16_HIGHESTA:
989f9879
AM		 14330 if (htab->elf.tls_sec != NULL)
14331 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 14332 break;
14333
45965137
AM		 14334 case R_PPC64_ADDR64_LOCAL:
14335 addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL
14336 ? h->elf.other
14337 : sym->st_other);
14338 break;
14339
e515b051
AM		 14340 case R_PPC64_DTPMOD64:
14341 relocation = 1;
14342 addend = 0;
14343 goto dodyn;
14344
411e1bfb 14345 case R_PPC64_TPREL64:
989f9879
AM		 14346 if (htab->elf.tls_sec != NULL)
14347 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 14348 goto dodyn;
14349
14350 case R_PPC64_DTPREL64:
989f9879
AM		 14351 if (htab->elf.tls_sec != NULL)
14352 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 14353 /* Fall thru */
14354
65f38f15
AM		 14355 /* Relocations that may need to be propagated if this is a
14356 dynamic object. */
04c9666a 14357 case R_PPC64_REL30:
65f38f15
AM		 14358 case R_PPC64_REL32:
14359 case R_PPC64_REL64:
14360 case R_PPC64_ADDR14:
14361 case R_PPC64_ADDR14_BRNTAKEN:
14362 case R_PPC64_ADDR14_BRTAKEN:
14363 case R_PPC64_ADDR16:
14364 case R_PPC64_ADDR16_DS:
14365 case R_PPC64_ADDR16_HA:
14366 case R_PPC64_ADDR16_HI:
f9c6b907
AM		 14367 case R_PPC64_ADDR16_HIGH:
14368 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 14369 case R_PPC64_ADDR16_HIGHER:
14370 case R_PPC64_ADDR16_HIGHERA:
14371 case R_PPC64_ADDR16_HIGHEST:
14372 case R_PPC64_ADDR16_HIGHESTA:
14373 case R_PPC64_ADDR16_LO:
14374 case R_PPC64_ADDR16_LO_DS:
14375 case R_PPC64_ADDR24:
65f38f15
AM		 14376 case R_PPC64_ADDR32:
14377 case R_PPC64_ADDR64:
14378 case R_PPC64_UADDR16:
14379 case R_PPC64_UADDR32:
14380 case R_PPC64_UADDR64:
411e1bfb 14381 dodyn:
5d1634d7 14382 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 14383 break;
14384
41bd81ab
AM		 14385 if (NO_OPD_RELOCS && is_opd)
14386 break;
14387
65f38f15 14388 if ((info->shared
4e795f50 14389 && (h == NULL
039b3fef
AM		 14390 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
14391 || h->elf.root.type != bfd_link_hash_undefweak)
1d483afe 14392 && (must_be_dyn_reloc (info, r_type)
039b3fef 14393 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
f4656909
AM		 14394 || (ELIMINATE_COPY_RELOCS
14395 && !info->shared
65f38f15 14396 && h != NULL
039b3fef 14397 && h->elf.dynindx != -1
f5385ebf 14398 && !h->elf.non_got_ref
25f23106
AM		 14399 && !h->elf.def_regular)
14400 || (!info->shared
14401 && (h != NULL
14402 ? h->elf.type == STT_GNU_IFUNC
14403 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)))
65f38f15 14404 {
b34976b6 14405 bfd_boolean skip, relocate;
65f38f15 14406 asection *sreloc;
1cf1f670 14407 bfd_vma out_off;
65f38f15
AM		 14408
14409 /* When generating a dynamic object, these relocations
14410 are copied into the output file to be resolved at run
14411 time. */
14412
b34976b6
AM		 14413 skip = FALSE;
14414 relocate = FALSE;
65f38f15 14415
1cf1f670
AM		 14416 out_off = _bfd_elf_section_offset (output_bfd, info,
14417 input_section, rel->r_offset);
14418 if (out_off == (bfd_vma) -1)
b34976b6 14419 skip = TRUE;
1cf1f670 14420 else if (out_off == (bfd_vma) -2)
b34976b6 14421 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 14422 out_off += (input_section->output_section->vma
14423 + input_section->output_offset);
14424 outrel.r_offset = out_off;
411e1bfb 14425 outrel.r_addend = rel->r_addend;
65f38f15 14426
1cf1f670
AM		 14427 /* Optimize unaligned reloc use. */
14428 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
14429 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
14430 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
14431 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
14432 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
14433 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
14434 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
14435 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
14436 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
14437
65f38f15 14438 if (skip)
0bb2d96a 14439 memset (&outrel, 0, sizeof outrel);
afe397ea 14440 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
0b13192e
AM		 14441 && !is_opd
14442 && r_type != R_PPC64_TOC)
14acf4dc
MR		 14443 {
14444 BFD_ASSERT (h->elf.dynindx != -1);
14445 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
14446 }
65f38f15
AM		 14447 else
14448 {
41bd81ab
AM		 14449 /* This symbol is local, or marked to become local,
14450 or this is an opd section reloc which must point
14451 at a local function. */
65f38f15 14452 outrel.r_addend += relocation;
e86ce104 14453 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 14454 {
3fad3c7c 14455 if (is_opd && h != NULL)
afbe61cf
AM		 14456 {
14457 /* Lie about opd entries. This case occurs
14458 when building shared libraries and we
14459 reference a function in another shared
3fad3c7c
AM		 14460 lib. The same thing happens for a weak
14461 definition in an application that's
14462 overridden by a strong definition in a
14463 shared lib. (I believe this is a generic
14464 bug in binutils handling of weak syms.)
14465 In these cases we won't use the opd
1e2f5b6e 14466 entry in this lib. */
b34976b6 14467 unresolved_reloc = FALSE;
afbe61cf 14468 }
25f23106
AM		 14469 if (!is_opd
14470 && r_type == R_PPC64_ADDR64
14471 && (h != NULL
14472 ? h->elf.type == STT_GNU_IFUNC
14473 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
14474 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
14475 else
14476 {
14477 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69 14478
25f23106
AM		 14479 /* We need to relocate .opd contents for ld.so.
14480 Prelink also wants simple and consistent rules
14481 for relocs. This make all RELATIVE relocs have
14482 *r_offset equal to r_addend. */
14483 relocate = TRUE;
14484 }
65f38f15
AM		 14485 }
14486 else
14487 {
14488 long indx = 0;
14489
25f23106
AM		 14490 if (h != NULL
14491 ? h->elf.type == STT_GNU_IFUNC
14492 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
14493 {
25f53a85 14494 info->callbacks->einfo
bc30df16
AM		 14495 (_("%P: %H: %s for indirect "
14496 "function `%T' unsupported\n"),
25f53a85 14497 input_bfd, input_section, rel->r_offset,
25f23106
AM		 14498 ppc64_elf_howto_table[r_type]->name,
14499 sym_name);
14500 ret = FALSE;
14501 }
cf35638d 14502 else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
65f38f15
AM		 14503 ;
14504 else if (sec == NULL || sec->owner == NULL)
14505 {
14506 bfd_set_error (bfd_error_bad_value);
b34976b6 14507 return FALSE;
65f38f15
AM		 14508 }
14509 else
14510 {
14511 asection *osec;
14512
14513 osec = sec->output_section;
14514 indx = elf_section_data (osec)->dynindx;
14515
74541ad4
AM		 14516 if (indx == 0)
14517 {
14518 if ((osec->flags & SEC_READONLY) == 0
14519 && htab->elf.data_index_section != NULL)
14520 osec = htab->elf.data_index_section;
14521 else
14522 osec = htab->elf.text_index_section;
14523 indx = elf_section_data (osec)->dynindx;
14524 }
14525 BFD_ASSERT (indx != 0);
14526
65f38f15
AM		 14527 /* We are turning this relocation into one
14528 against a section symbol, so subtract out
14529 the output section's address but not the
14530 offset of the input section in the output
14531 section. */
14532 outrel.r_addend -= osec->vma;
14533 }
14534
14535 outrel.r_info = ELF64_R_INFO (indx, r_type);
14536 }
14537 }
14538
14539 sreloc = elf_section_data (input_section)->sreloc;
19e08130
AM		 14540 if (h != NULL
14541 ? h->elf.type == STT_GNU_IFUNC
14542 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
33e44f2e 14543 sreloc = htab->elf.irelplt;
65f38f15
AM		 14544 if (sreloc == NULL)
14545 abort ();
14546
dfbb6ac9
AM		 14547 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
14548 >= sreloc->size)
14549 abort ();
947216bf
AM		 14550 loc = sreloc->contents;
14551 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 14552 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
14553
14554 /* If this reloc is against an external symbol, it will
14555 be computed at runtime, so there's no need to do
81407a69
AM		 14556 anything now. However, for the sake of prelink ensure
14557 that the section contents are a known value. */
65f38f15 14558 if (! relocate)
81407a69
AM		 14559 {
14560 unresolved_reloc = FALSE;
14561 /* The value chosen here is quite arbitrary as ld.so
14562 ignores section contents except for the special
14563 case of .opd where the contents might be accessed
14564 before relocation. Choose zero, as that won't
14565 cause reloc overflow. */
14566 relocation = 0;
14567 addend = 0;
14568 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
14569 to improve backward compatibility with older
14570 versions of ld. */
14571 if (r_type == R_PPC64_ADDR64)
14572 addend = outrel.r_addend;
14573 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 14574 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 14575 addend = (input_section->output_section->vma
14576 + input_section->output_offset
14577 + rel->r_offset);
81407a69 14578 }
65f38f15 14579 }
5bd4f169
AM		 14580 break;
14581
65f38f15
AM		 14582 case R_PPC64_COPY:
14583 case R_PPC64_GLOB_DAT:
14584 case R_PPC64_JMP_SLOT:
25f23106 14585 case R_PPC64_JMP_IREL:
65f38f15
AM		 14586 case R_PPC64_RELATIVE:
14587 /* We shouldn't ever see these dynamic relocs in relocatable
14588 files. */
ae9a127f 14589 /* Fall through. */
65f38f15
AM		 14590
14591 case R_PPC64_PLTGOT16:
14592 case R_PPC64_PLTGOT16_DS:
14593 case R_PPC64_PLTGOT16_HA:
14594 case R_PPC64_PLTGOT16_HI:
14595 case R_PPC64_PLTGOT16_LO:
14596 case R_PPC64_PLTGOT16_LO_DS:
14597 case R_PPC64_PLTREL32:
14598 case R_PPC64_PLTREL64:
14599 /* These ones haven't been implemented yet. */
14600
25f53a85 14601 info->callbacks->einfo
bc30df16 14602 (_("%P: %B: %s is not supported for `%T'\n"),
d003868e 14603 input_bfd,
4ce794b7 14604 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 14605
14606 bfd_set_error (bfd_error_invalid_operation);
b34976b6 14607 ret = FALSE;
5bd4f169 14608 continue;
65f38f15 14609 }
5bd4f169 14610
67f0cbdb
AM		 14611 /* Multi-instruction sequences that access the TOC can be
14612 optimized, eg. addis ra,r2,0; addi rb,ra,x;
14613 to nop; addi rb,r2,x; */
14614 switch (r_type)
14615 {
14616 default:
14617 break;
14618
14619 case R_PPC64_GOT_TLSLD16_HI:
14620 case R_PPC64_GOT_TLSGD16_HI:
14621 case R_PPC64_GOT_TPREL16_HI:
14622 case R_PPC64_GOT_DTPREL16_HI:
14623 case R_PPC64_GOT16_HI:
14624 case R_PPC64_TOC16_HI:
14625 /* These relocs would only be useful if building up an
14626 offset to later add to r2, perhaps in an indexed
14627 addressing mode instruction. Don't try to optimize.
14628 Unfortunately, the possibility of someone building up an
14629 offset like this or even with the HA relocs, means that
14630 we need to check the high insn when optimizing the low
14631 insn. */
14632 break;
14633
14634 case R_PPC64_GOT_TLSLD16_HA:
14635 case R_PPC64_GOT_TLSGD16_HA:
14636 case R_PPC64_GOT_TPREL16_HA:
14637 case R_PPC64_GOT_DTPREL16_HA:
14638 case R_PPC64_GOT16_HA:
14639 case R_PPC64_TOC16_HA:
98528052 14640 if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000
560c8763 14641 && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn)
98528052
AM		 14642 {
14643 bfd_byte *p = contents + (rel->r_offset & ~3);
14644 bfd_put_32 (input_bfd, NOP, p);
14645 }
67f0cbdb
AM		 14646 break;
14647
14648 case R_PPC64_GOT_TLSLD16_LO:
14649 case R_PPC64_GOT_TLSGD16_LO:
14650 case R_PPC64_GOT_TPREL16_LO_DS:
14651 case R_PPC64_GOT_DTPREL16_LO_DS:
14652 case R_PPC64_GOT16_LO:
14653 case R_PPC64_GOT16_LO_DS:
14654 case R_PPC64_TOC16_LO:
14655 case R_PPC64_TOC16_LO_DS:
98528052 14656 if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000
560c8763 14657 && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn)
67f0cbdb
AM		 14658 {
14659 bfd_byte *p = contents + (rel->r_offset & ~3);
14660 insn = bfd_get_32 (input_bfd, p);
560c8763
AM		 14661 if ((insn & (0x3f << 26)) == 12u << 26 /* addic */)
14662 {
14663 /* Transform addic to addi when we change reg. */
14664 insn &= ~((0x3f << 26) | (0x1f << 16));
14665 insn |= (14u << 26) | (2 << 16);
14666 }
14667 else
67f0cbdb 14668 {
98528052
AM		 14669 insn &= ~(0x1f << 16);
14670 insn |= 2 << 16;
67f0cbdb 14671 }
560c8763 14672 bfd_put_32 (input_bfd, insn, p);
67f0cbdb
AM		 14673 }
14674 break;
14675 }
14676
65f38f15 14677 /* Do any further special processing. */
b80eed39 14678 howto = ppc64_elf_howto_table[(int) r_type];
65f38f15
AM		 14679 switch (r_type)
14680 {
14681 default:
14682 break;
14683
25f23106 14684 case R_PPC64_REL16_HA:
f9c6b907
AM		 14685 case R_PPC64_ADDR16_HA:
14686 case R_PPC64_ADDR16_HIGHA:
65f38f15
AM		 14687 case R_PPC64_ADDR16_HIGHERA:
14688 case R_PPC64_ADDR16_HIGHESTA:
65f38f15
AM		 14689 case R_PPC64_TOC16_HA:
14690 case R_PPC64_SECTOFF_HA:
411e1bfb 14691 case R_PPC64_TPREL16_HA:
f9c6b907 14692 case R_PPC64_TPREL16_HIGHA:
411e1bfb 14693 case R_PPC64_TPREL16_HIGHERA:
411e1bfb 14694 case R_PPC64_TPREL16_HIGHESTA:
f9c6b907
AM		 14695 case R_PPC64_DTPREL16_HA:
14696 case R_PPC64_DTPREL16_HIGHA:
411e1bfb 14697 case R_PPC64_DTPREL16_HIGHERA:
411e1bfb 14698 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 14699 /* It's just possible that this symbol is a weak symbol
14700 that's not actually defined anywhere. In that case,
14701 'sec' would be NULL, and we should leave the symbol
14702 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM		 14703 if (sec == NULL)
14704 break;
14705 /* Fall thru */
14706
14707 case R_PPC64_GOT16_HA:
14708 case R_PPC64_PLTGOT16_HA:
14709 case R_PPC64_PLT16_HA:
14710 case R_PPC64_GOT_TLSGD16_HA:
14711 case R_PPC64_GOT_TLSLD16_HA:
14712 case R_PPC64_GOT_TPREL16_HA:
14713 case R_PPC64_GOT_DTPREL16_HA:
14714 /* Add 0x10000 if sign bit in 0:15 is set.
14715 Bits 0:15 are not used. */
14716 addend += 0x8000;
65f38f15
AM		 14717 break;
14718
14719 case R_PPC64_ADDR16_DS:
14720 case R_PPC64_ADDR16_LO_DS:
14721 case R_PPC64_GOT16_DS:
14722 case R_PPC64_GOT16_LO_DS:
14723 case R_PPC64_PLT16_LO_DS:
14724 case R_PPC64_SECTOFF_DS:
14725 case R_PPC64_SECTOFF_LO_DS:
14726 case R_PPC64_TOC16_DS:
14727 case R_PPC64_TOC16_LO_DS:
14728 case R_PPC64_PLTGOT16_DS:
14729 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 14730 case R_PPC64_GOT_TPREL16_DS:
14731 case R_PPC64_GOT_TPREL16_LO_DS:
14732 case R_PPC64_GOT_DTPREL16_DS:
14733 case R_PPC64_GOT_DTPREL16_LO_DS:
14734 case R_PPC64_TPREL16_DS:
14735 case R_PPC64_TPREL16_LO_DS:
14736 case R_PPC64_DTPREL16_DS:
14737 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 14738 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
14739 mask = 3;
14740 /* If this reloc is against an lq insn, then the value must be
14741 a multiple of 16. This is somewhat of a hack, but the
14742 "correct" way to do this by defining _DQ forms of all the
14743 _DS relocs bloats all reloc switches in this file. It
14744 doesn't seem to make much sense to use any of these relocs
14745 in data, so testing the insn should be safe. */
494dac0c 14746 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 14747 mask = 15;
14748 if (((relocation + addend) & mask) != 0)
65f38f15 14749 {
25f53a85 14750 info->callbacks->einfo
8de848d8 14751 (_("%P: %H: error: %s not a multiple of %u\n"),
25f53a85 14752 input_bfd, input_section, rel->r_offset,
b80eed39 14753 howto->name,
adadcc0c 14754 mask + 1);
65f38f15 14755 bfd_set_error (bfd_error_bad_value);
b34976b6 14756 ret = FALSE;
65f38f15
AM		 14757 continue;
14758 }
14759 break;
5bd4f169
AM		 14760 }
14761
239e1f3a
AM		 14762 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
14763 because such sections are not SEC_ALLOC and thus ld.so will
14764 not process them. */
65f38f15 14765 if (unresolved_reloc
239e1f3a 14766 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 14767 && h->elf.def_dynamic)
14768 && _bfd_elf_section_offset (output_bfd, info, input_section,
14769 rel->r_offset) != (bfd_vma) -1)
9c07fe7c 14770 {
25f53a85 14771 info->callbacks->einfo
bc30df16 14772 (_("%P: %H: unresolvable %s against `%T'\n"),
25f53a85 14773 input_bfd, input_section, rel->r_offset,
b80eed39 14774 howto->name,
039b3fef 14775 h->elf.root.root.string);
b34976b6 14776 ret = FALSE;
9c07fe7c 14777 }
5bd4f169 14778
b80eed39
AM		 14779 /* 16-bit fields in insns mostly have signed values, but a
14780 few insns have 16-bit unsigned values. Really, we should
14781 have different reloc types. */
14782 if (howto->complain_on_overflow != complain_overflow_dont
14783 && howto->dst_mask == 0xffff
14784 && (input_section->flags & SEC_CODE) != 0)
14785 {
14786 enum complain_overflow complain = complain_overflow_signed;
14787
14788 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
a47622ac
AM		 14789 if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
14790 complain = complain_overflow_bitfield;
14791 else if (howto->rightshift == 0
14792 ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */
14793 || (insn & (0x3f << 26)) == 24u << 26 /* ori */
14794 || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
14795 : ((insn & (0x3f << 26)) == 29u << 26 /* andis */
14796 || (insn & (0x3f << 26)) == 25u << 26 /* oris */
14797 || (insn & (0x3f << 26)) == 27u << 26 /* xoris */))
b80eed39
AM		 14798 complain = complain_overflow_unsigned;
14799 if (howto->complain_on_overflow != complain)
14800 {
14801 alt_howto = *howto;
14802 alt_howto.complain_on_overflow = complain;
14803 howto = &alt_howto;
14804 }
14805 }
14806
14807 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
14808 rel->r_offset, relocation, addend);
5bd4f169 14809
ef60b7ff 14810 if (r != bfd_reloc_ok)
5bd4f169 14811 {
bc30df16 14812 char *more_info = NULL;
b80eed39 14813 const char *reloc_name = howto->name;
bc30df16
AM		 14814
14815 if (reloc_dest != DEST_NORMAL)
14816 {
14817 more_info = bfd_malloc (strlen (reloc_name) + 8);
14818 if (more_info != NULL)
14819 {
14820 strcpy (more_info, reloc_name);
14821 strcat (more_info, (reloc_dest == DEST_OPD
14822 ? " (OPD)" : " (stub)"));
14823 reloc_name = more_info;
14824 }
14825 }
14826
cd27b276 14827 if (r == bfd_reloc_overflow)
5bd4f169 14828 {
cd27b276
AM		 14829 if (warned)
14830 continue;
14831 if (h != NULL
039b3fef 14832 && h->elf.root.type == bfd_link_hash_undefweak
b80eed39 14833 && howto->pc_relative)
5bd4f169
AM		 14834 {
14835 /* Assume this is a call protected by other code that
14836 detects the symbol is undefined. If this is the case,
14837 we can safely ignore the overflow. If not, the
14838 program is hosed anyway, and a little warning isn't
14839 going to help. */
14840
14841 continue;
14842 }
14843
ef60b7ff 14844 if (!((*info->callbacks->reloc_overflow)
bc30df16
AM		 14845 (info, &h->elf.root, sym_name,
14846 reloc_name, orig_rel.r_addend,
14847 input_bfd, input_section, rel->r_offset)))
b34976b6 14848 return FALSE;
ef60b7ff
AM		 14849 }
14850 else
14851 {
25f53a85 14852 info->callbacks->einfo
bc30df16 14853 (_("%P: %H: %s against `%T': error %d\n"),
25f53a85 14854 input_bfd, input_section, rel->r_offset,
bc30df16 14855 reloc_name, sym_name, (int) r);
b34976b6 14856 ret = FALSE;
ef60b7ff 14857 }
bc30df16
AM		 14858 if (more_info != NULL)
14859 free (more_info);
5bd4f169 14860 }
5bd4f169
AM		 14861 }
14862
645ea6a9
AM		 14863 /* If we're emitting relocations, then shortly after this function
14864 returns, reloc offsets and addends for this section will be
14865 adjusted. Worse, reloc symbol indices will be for the output
8860955f
AM		 14866 file rather than the input. Save a copy of the relocs for
14867 opd_entry_value. */
4cc603a5 14868 if (is_opd && (info->emitrelocations || info->relocatable))
8860955f
AM		 14869 {
14870 bfd_size_type amt;
14871 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
14872 rel = bfd_alloc (input_bfd, amt);
729eabd5
AM		 14873 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL);
14874 ppc64_elf_tdata (input_bfd)->opd.relocs = rel;
8860955f
AM		 14875 if (rel == NULL)
14876 return FALSE;
14877 memcpy (rel, relocs, amt);
14878 }
5bd4f169
AM		 14879 return ret;
14880}
14881
754021d0
AM		 14882/* Adjust the value of any local symbols in opd sections. */
14883
6e0b88f1 14884static int
754021d0
AM		 14885ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
14886 const char *name ATTRIBUTE_UNUSED,
14887 Elf_Internal_Sym *elfsym,
14888 asection *input_sec,
14889 struct elf_link_hash_entry *h)
14890{
74f0fb50
AM		 14891 struct _opd_sec_data *opd;
14892 long adjust;
754021d0
AM		 14893 bfd_vma value;
14894
4025353c 14895 if (h != NULL)
6e0b88f1 14896 return 1;
4025353c 14897
74f0fb50
AM		 14898 opd = get_opd_info (input_sec);
14899 if (opd == NULL || opd->adjust == NULL)
6e0b88f1 14900 return 1;
754021d0
AM		 14901
14902 value = elfsym->st_value - input_sec->output_offset;
14903 if (!info->relocatable)
14904 value -= input_sec->output_section->vma;
14905
51aecdc5 14906 adjust = opd->adjust[OPD_NDX (value)];
4025353c 14907 if (adjust == -1)
6e0b88f1
AM		 14908 return 2;
14909
14910 elfsym->st_value += adjust;
14911 return 1;
754021d0
AM		 14912}
14913
5bd4f169
AM		 14914/* Finish up dynamic symbol handling. We set the contents of various
14915 dynamic sections here. */
14916
b34976b6 14917static bfd_boolean
4ce794b7
AM		 14918ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
14919 struct bfd_link_info *info,
14920 struct elf_link_hash_entry *h,
ab6dce23 14921 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5bd4f169 14922{
65f38f15 14923 struct ppc_link_hash_table *htab;
8387904d
AM		 14924 struct plt_entry *ent;
14925 Elf_Internal_Rela rela;
14926 bfd_byte *loc;
5bd4f169 14927
65f38f15 14928 htab = ppc_hash_table (info);
4dfe6ac6
NC		 14929 if (htab == NULL)
14930 return FALSE;
5bd4f169 14931
8387904d
AM		 14932 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
14933 if (ent->plt.offset != (bfd_vma) -1)
14934 {
14935 /* This symbol has an entry in the procedure linkage
14936 table. Set it up. */
e054468f
AM		 14937 if (!htab->elf.dynamic_sections_created
14938 || h->dynindx == -1)
14939 {
14940 BFD_ASSERT (h->type == STT_GNU_IFUNC
14941 && h->def_regular
14942 && (h->root.type == bfd_link_hash_defined
14943 || h->root.type == bfd_link_hash_defweak));
33e44f2e
AM		 14944 rela.r_offset = (htab->elf.iplt->output_section->vma
14945 + htab->elf.iplt->output_offset
25f23106 14946 + ent->plt.offset);
ee67d69a
AM		 14947 if (htab->opd_abi)
14948 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
14949 else
14950 rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
e054468f
AM		 14951 rela.r_addend = (h->root.u.def.value
14952 + h->root.u.def.section->output_offset
14953 + h->root.u.def.section->output_section->vma
14954 + ent->addend);
33e44f2e
AM		 14955 loc = (htab->elf.irelplt->contents
14956 + (htab->elf.irelplt->reloc_count++
25f23106 14957 * sizeof (Elf64_External_Rela)));
e054468f
AM		 14958 }
14959 else
14960 {
33e44f2e
AM		 14961 rela.r_offset = (htab->elf.splt->output_section->vma
14962 + htab->elf.splt->output_offset
25f23106 14963 + ent->plt.offset);
e054468f
AM		 14964 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
14965 rela.r_addend = ent->addend;
33e44f2e 14966 loc = (htab->elf.srelplt->contents
b9e5796b
AM		 14967 + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab))
14968 / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela)));
e054468f 14969 }
8387904d 14970 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
a345bc8d
AM		 14971
14972 if (!htab->opd_abi)
14973 {
14974 if (!h->def_regular)
14975 {
14976 /* Mark the symbol as undefined, rather than as
14977 defined in glink. Leave the value if there were
14978 any relocations where pointer equality matters
14979 (this is a clue for the dynamic linker, to make
14980 function pointer comparisons work between an
14981 application and shared library), otherwise set it
14982 to zero. */
14983 sym->st_shndx = SHN_UNDEF;
14984 if (!h->pointer_equality_needed)
14985 sym->st_value = 0;
14986 else if (!h->ref_regular_nonweak)
14987 {
14988 /* This breaks function pointer comparisons, but
14989 that is better than breaking tests for a NULL
14990 function pointer. */
14991 sym->st_value = 0;
14992 }
14993 }
14994 }
8387904d 14995 }
5bd4f169 14996
f5385ebf 14997 if (h->needs_copy)
5bd4f169 14998 {
65f38f15 14999 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 15000
65f38f15
AM		 15001 if (h->dynindx == -1
15002 || (h->root.type != bfd_link_hash_defined
15003 && h->root.type != bfd_link_hash_defweak)
4ce794b7 15004 || htab->relbss == NULL)
65f38f15 15005 abort ();
5bd4f169
AM		 15006
15007 rela.r_offset = (h->root.u.def.value
15008 + h->root.u.def.section->output_section->vma
15009 + h->root.u.def.section->output_offset);
15010 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
15011 rela.r_addend = 0;
4ce794b7
AM		 15012 loc = htab->relbss->contents;
15013 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 15014 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 15015 }
15016
b34976b6 15017 return TRUE;
5bd4f169
AM		 15018}
15019
65f38f15
AM		 15020/* Used to decide how to sort relocs in an optimal manner for the
15021 dynamic linker, before writing them out. */
15022
15023static enum elf_reloc_type_class
7e612e98
AM		 15024ppc64_elf_reloc_type_class (const struct bfd_link_info *info,
15025 const asection *rel_sec,
15026 const Elf_Internal_Rela *rela)
65f38f15 15027{
04c9666a 15028 enum elf_ppc64_reloc_type r_type;
7e612e98
AM		 15029 struct ppc_link_hash_table *htab = ppc_hash_table (info);
15030
33e44f2e 15031 if (rel_sec == htab->elf.irelplt)
7e612e98 15032 return reloc_class_ifunc;
a33d1f77 15033
4ce794b7 15034 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 15035 switch (r_type)
65f38f15
AM		 15036 {
15037 case R_PPC64_RELATIVE:
15038 return reloc_class_relative;
15039 case R_PPC64_JMP_SLOT:
15040 return reloc_class_plt;
15041 case R_PPC64_COPY:
15042 return reloc_class_copy;
15043 default:
15044 return reloc_class_normal;
15045 }
15046}
15047
5bd4f169
AM		 15048/* Finish up the dynamic sections. */
15049
b34976b6 15050static bfd_boolean
4ce794b7
AM		 15051ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
15052 struct bfd_link_info *info)
5bd4f169 15053{
65f38f15
AM		 15054 struct ppc_link_hash_table *htab;
15055 bfd *dynobj;
5bd4f169 15056 asection *sdyn;
5bd4f169 15057
65f38f15 15058 htab = ppc_hash_table (info);
4dfe6ac6
NC		 15059 if (htab == NULL)
15060 return FALSE;
15061
65f38f15 15062 dynobj = htab->elf.dynobj;
3d4d4302 15063 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5bd4f169 15064
65f38f15 15065 if (htab->elf.dynamic_sections_created)
5bd4f169 15066 {
5bd4f169
AM		 15067 Elf64_External_Dyn *dyncon, *dynconend;
15068
33e44f2e 15069 if (sdyn == NULL || htab->elf.sgot == NULL)
65f38f15 15070 abort ();
5bd4f169
AM		 15071
15072 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 15073 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM		 15074 for (; dyncon < dynconend; dyncon++)
15075 {
15076 Elf_Internal_Dyn dyn;
19397422 15077 asection *s;
5bd4f169
AM		 15078
15079 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
15080
15081 switch (dyn.d_tag)
15082 {
65f38f15
AM		 15083 default:
15084 continue;
5bd4f169 15085
5d1634d7 15086 case DT_PPC64_GLINK:
4ce794b7 15087 s = htab->glink;
6348e046 15088 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 15089 /* We stupidly defined DT_PPC64_GLINK to be the start
15090 of glink rather than the first entry point, which is
15091 what ld.so needs, and now have a bigger stub to
15092 support automatic multiple TOCs. */
b9e5796b 15093 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4;
5d1634d7
AM		 15094 break;
15095
19397422
AM		 15096 case DT_PPC64_OPD:
15097 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 15098 if (s == NULL)
15099 continue;
15100 dyn.d_un.d_ptr = s->vma;
19397422
AM		 15101 break;
15102
e8910a83
AM		 15103 case DT_PPC64_OPT:
15104 if (htab->do_multi_toc && htab->multi_toc_needed)
15105 dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC;
15106 break;
15107
19397422
AM		 15108 case DT_PPC64_OPDSZ:
15109 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 15110 if (s == NULL)
15111 continue;
eea6121a 15112 dyn.d_un.d_val = s->size;
19397422
AM		 15113 break;
15114
65f38f15 15115 case DT_PLTGOT:
33e44f2e 15116 s = htab->elf.splt;
6348e046 15117 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 15118 break;
15119
15120 case DT_JMPREL:
33e44f2e 15121 s = htab->elf.srelplt;
6348e046 15122 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 15123 break;
5bd4f169 15124
65f38f15 15125 case DT_PLTRELSZ:
33e44f2e 15126 dyn.d_un.d_val = htab->elf.srelplt->size;
5d1634d7
AM		 15127 break;
15128
15129 case DT_RELASZ:
15130 /* Don't count procedure linkage table relocs in the
15131 overall reloc count. */
33e44f2e 15132 s = htab->elf.srelplt;
6348e046
AM		 15133 if (s == NULL)
15134 continue;
eea6121a 15135 dyn.d_un.d_val -= s->size;
6348e046
AM		 15136 break;
15137
15138 case DT_RELA:
15139 /* We may not be using the standard ELF linker script.
15140 If .rela.plt is the first .rela section, we adjust
15141 DT_RELA to not include it. */
33e44f2e 15142 s = htab->elf.srelplt;
6348e046
AM		 15143 if (s == NULL)
15144 continue;
15145 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
15146 continue;
eea6121a 15147 dyn.d_un.d_ptr += s->size;
65f38f15 15148 break;
5bd4f169 15149 }
5bd4f169 15150
65f38f15 15151 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 15152 }
5bd4f169
AM		 15153 }
15154
33e44f2e 15155 if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0)
5d1634d7
AM		 15156 {
15157 /* Fill in the first entry in the global offset table.
15158 We use it to hold the link-time TOCbase. */
15159 bfd_put_64 (output_bfd,
60ee0d4a 15160 elf_gp (output_bfd) + TOC_BASE_OFF,
33e44f2e 15161 htab->elf.sgot->contents);
5d1634d7
AM		 15162
15163 /* Set .got entry size. */
33e44f2e 15164 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 15165 }
15166
33e44f2e 15167 if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
5d1634d7
AM		 15168 {
15169 /* Set .plt entry size. */
33e44f2e 15170 elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize
b9e5796b 15171 = PLT_ENTRY_SIZE (htab);
5d1634d7
AM		 15172 }
15173
84f5d08e
AM		 15174 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
15175 brlt ourselves if emitrelocations. */
15176 if (htab->brlt != NULL
15177 && htab->brlt->reloc_count != 0
15178 && !_bfd_elf_link_output_relocs (output_bfd,
15179 htab->brlt,
d4730f92 15180 elf_section_data (htab->brlt)->rela.hdr,
84f5d08e
AM		 15181 elf_section_data (htab->brlt)->relocs,
15182 NULL))
15183 return FALSE;
15184
176a0d42
AM		 15185 if (htab->glink != NULL
15186 && htab->glink->reloc_count != 0
15187 && !_bfd_elf_link_output_relocs (output_bfd,
15188 htab->glink,
d4730f92 15189 elf_section_data (htab->glink)->rela.hdr,
176a0d42
AM		 15190 elf_section_data (htab->glink)->relocs,
15191 NULL))
15192 return FALSE;
15193
58d180e8 15194 if (htab->glink_eh_frame != NULL
da44f4e5
AM		 15195 && htab->glink_eh_frame->size != 0)
15196 {
15197 bfd_vma val;
15198 bfd_byte *p;
15199 asection *stub_sec;
15200
15201 p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie);
15202 for (stub_sec = htab->params->stub_bfd->sections;
15203 stub_sec != NULL;
15204 stub_sec = stub_sec->next)
15205 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
15206 {
15207 /* FDE length. */
15208 p += 4;
15209 /* CIE pointer. */
15210 p += 4;
15211 /* Offset to stub section. */
15212 val = (stub_sec->output_section->vma
15213 + stub_sec->output_offset);
15214 val -= (htab->glink_eh_frame->output_section->vma
15215 + htab->glink_eh_frame->output_offset
15216 + (p - htab->glink_eh_frame->contents));
15217 if (val + 0x80000000 > 0xffffffff)
15218 {
15219 info->callbacks->einfo
15220 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15221 stub_sec->name);
15222 return FALSE;
15223 }
15224 bfd_put_32 (dynobj, val, p);
15225 p += 4;
15226 /* stub section size. */
15227 p += 4;
15228 /* Augmentation. */
15229 p += 1;
15230 /* Pad. */
15231 p += 7;
15232 }
15233 if (htab->glink != NULL && htab->glink->size != 0)
15234 {
15235 /* FDE length. */
15236 p += 4;
15237 /* CIE pointer. */
15238 p += 4;
15239 /* Offset to .glink. */
15240 val = (htab->glink->output_section->vma
15241 + htab->glink->output_offset
15242 + 8);
15243 val -= (htab->glink_eh_frame->output_section->vma
15244 + htab->glink_eh_frame->output_offset
15245 + (p - htab->glink_eh_frame->contents));
15246 if (val + 0x80000000 > 0xffffffff)
15247 {
15248 info->callbacks->einfo
15249 (_("%P: %s offset too large for .eh_frame sdata4 encoding"),
15250 htab->glink->name);
15251 return FALSE;
15252 }
15253 bfd_put_32 (dynobj, val, p);
15254 p += 4;
15255 /* .glink size. */
15256 p += 4;
15257 /* Augmentation. */
15258 p += 1;
15259 /* Ops. */
15260 p += 7;
15261 }
15262
15263 if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
15264 && !_bfd_elf_write_section_eh_frame (output_bfd, info,
15265 htab->glink_eh_frame,
15266 htab->glink_eh_frame->contents))
15267 return FALSE;
15268 }
58d180e8 15269
e717da7e 15270 /* We need to handle writing out multiple GOT sections ourselves,
7b53ace3
AM		 15271 since we didn't add them to DYNOBJ. We know dynobj is the first
15272 bfd. */
c72f2fb2 15273 while ((dynobj = dynobj->link.next) != NULL)
e717da7e
AM		 15274 {
15275 asection *s;
7b53ace3 15276
0c8d6e5c 15277 if (!is_ppc64_elf (dynobj))
7b53ace3
AM		 15278 continue;
15279
e717da7e
AM		 15280 s = ppc64_elf_tdata (dynobj)->got;
15281 if (s != NULL
eea6121a 15282 && s->size != 0
e717da7e
AM		 15283 && s->output_section != bfd_abs_section_ptr
15284 && !bfd_set_section_contents (output_bfd, s->output_section,
15285 s->contents, s->output_offset,
eea6121a 15286 s->size))
e717da7e
AM		 15287 return FALSE;
15288 s = ppc64_elf_tdata (dynobj)->relgot;
15289 if (s != NULL
eea6121a 15290 && s->size != 0
e717da7e
AM		 15291 && s->output_section != bfd_abs_section_ptr
15292 && !bfd_set_section_contents (output_bfd, s->output_section,
15293 s->contents, s->output_offset,
eea6121a 15294 s->size))
e717da7e
AM		 15295 return FALSE;
15296 }
f6c52c13 15297
b34976b6 15298 return TRUE;
5bd4f169
AM		 15299}
15300
5bd4f169 15301#include "elf64-target.h"
7b8e7dad
AM		 15302
15303/* FreeBSD support */
15304
15305#undef TARGET_LITTLE_SYM
15306#undef TARGET_LITTLE_NAME
15307
15308#undef TARGET_BIG_SYM
6d00b590 15309#define TARGET_BIG_SYM powerpc_elf64_fbsd_vec
7b8e7dad
AM		 15310#undef TARGET_BIG_NAME
15311#define TARGET_BIG_NAME "elf64-powerpc-freebsd"
15312
15313#undef ELF_OSABI
15314#define ELF_OSABI ELFOSABI_FREEBSD
15315
15316#undef elf64_bed
15317#define elf64_bed elf64_powerpc_fbsd_bed
15318
15319#include "elf64-target.h"
15320
GDB Binutils - Deliverables
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