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[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
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5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
74f0fb50 2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
b2a8e766 3 Free Software Foundation, Inc.
5bd4f169
AM		 4 Written by Linus Nordberg, Swox AB <info@swox.com>,
5 based on elf32-ppc.c by Ian Lance Taylor.
d37c89e5 6 Largely rewritten by Alan Modra <amodra@bigpond.net.au>
5bd4f169 7
ae9a127f 8 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 9
ae9a127f
NC		 10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
cd123cb7 12 the Free Software Foundation; either version 3 of the License, or
ae9a127f 13 (at your option) any later version.
5bd4f169 14
ae9a127f
NC		 15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
5bd4f169 19
4ce794b7
AM		 20 You should have received a copy of the GNU General Public License along
21 with this program; if not, write to the Free Software Foundation, Inc.,
3e110533 22 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
5bd4f169 23
cd123cb7 24
4ce794b7
AM		 25/* The 64-bit PowerPC ELF ABI may be found at
26 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
27 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
5bd4f169 28
3db64b00 29#include "sysdep.h"
183e98be 30#include <stdarg.h>
5bd4f169 31#include "bfd.h"
5bd4f169
AM		 32#include "bfdlink.h"
33#include "libbfd.h"
34#include "elf-bfd.h"
04c9666a 35#include "elf/ppc64.h"
5d1634d7 36#include "elf64-ppc.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
AM		 56static bfd_vma opd_entry_value
57 (asection *, bfd_vma, asection **, bfd_vma *);
5bd4f169 58
ad8e1ba5
AM		 59#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
60#define TARGET_LITTLE_NAME "elf64-powerpcle"
61#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
62#define TARGET_BIG_NAME "elf64-powerpc"
63#define ELF_ARCH bfd_arch_powerpc
64#define ELF_MACHINE_CODE EM_PPC64
65#define ELF_MAXPAGESIZE 0x10000
24718e3b 66#define ELF_COMMONPAGESIZE 0x1000
ad8e1ba5
AM		 67#define elf_info_to_howto ppc64_elf_info_to_howto
68
69#define elf_backend_want_got_sym 0
70#define elf_backend_want_plt_sym 0
71#define elf_backend_plt_alignment 3
72#define elf_backend_plt_not_loaded 1
ad8e1ba5 73#define elf_backend_got_header_size 8
ad8e1ba5
AM		 74#define elf_backend_can_gc_sections 1
75#define elf_backend_can_refcount 1
76#define elf_backend_rela_normal 1
6bfdb61b 77#define elf_backend_default_execstack 0
ad8e1ba5 78
e717da7e 79#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5 80#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
157090f7 81#define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
ad8e1ba5
AM		 82#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
83#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
84#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
85#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
90e3cdf2 86#define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
ad8e1ba5
AM		 87
88#define elf_backend_object_p ppc64_elf_object_p
d37c89e5
AM		 89#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
90#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
183e98be 91#define elf_backend_write_core_note ppc64_elf_write_core_note
ad8e1ba5
AM		 92#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
93#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
555cd476 94#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
8387904d 95#define elf_backend_check_directives ppc64_elf_check_directives
97fed1c9 96#define elf_backend_as_needed_cleanup ppc64_elf_as_needed_cleanup
8387904d 97#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
ad8e1ba5 98#define elf_backend_check_relocs ppc64_elf_check_relocs
74f0fb50 99#define elf_backend_gc_keep ppc64_elf_gc_keep
64d03ab5 100#define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref
ad8e1ba5
AM		 101#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
102#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
103#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
104#define elf_backend_hide_symbol ppc64_elf_hide_symbol
105#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
106#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
74541ad4 107#define elf_backend_init_index_section _bfd_elf_init_2_index_sections
60124e18 108#define elf_backend_action_discarded ppc64_elf_action_discarded
ad8e1ba5
AM		 109#define elf_backend_relocate_section ppc64_elf_relocate_section
110#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
111#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
112#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
754021d0 113#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
29ef7005 114#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 115
5bd4f169
AM		 116/* The name of the dynamic interpreter. This is put in the .interp
117 section. */
118#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
119
120/* The size in bytes of an entry in the procedure linkage table. */
121#define PLT_ENTRY_SIZE 24
122
123/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 124#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM		 125
126/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 127#define TOC_BASE_OFF 0x8000
128
129/* Offset of tp and dtp pointers from start of TLS block. */
130#define TP_OFFSET 0x7000
131#define DTP_OFFSET 0x8000
5bd4f169 132
ad8e1ba5
AM		 133/* .plt call stub instructions. The normal stub is like this, but
134 sometimes the .plt entry crosses a 64k boundary and we need to
ac2df442 135 insert an addi to adjust r12. */
ad8e1ba5 136#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM		 137#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
138#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
139#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
5d1634d7 140#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
ac2df442 141#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
5d1634d7
AM		 142 /* ld %r11,xxx+16@l(%r12) */
143#define BCTR 0x4e800420 /* bctr */
144
5d1634d7 145
ee4bf8d2 146#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,off@ha */
ac2df442 147#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,off@l */
ad8e1ba5
AM		 148#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
149#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
150
ac2df442
AM		 151#define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
152#define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
153
ad8e1ba5
AM		 154#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
155
ee4bf8d2 156/* glink call stub instructions. We enter with the index in R0. */
ad8e1ba5 157#define GLINK_CALL_STUB_SIZE (16*4)
ee4bf8d2
AM		 158 /* 0: */
159 /* .quad plt0-1f */
160 /* __glink: */
161#define MFLR_R12 0x7d8802a6 /* mflr %12 */
162#define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
163 /* 1: */
164#define MFLR_R11 0x7d6802a6 /* mflr %11 */
165#define LD_R2_M16R11 0xe84bfff0 /* ld %2,(0b-1b)(%11) */
166#define MTLR_R12 0x7d8803a6 /* mtlr %12 */
167#define ADD_R12_R2_R11 0x7d825a14 /* add %12,%2,%11 */
168 /* ld %11,0(%12) */
169 /* ld %2,8(%12) */
170 /* mtctr %11 */
171 /* ld %11,16(%12) */
172 /* bctr */
5d1634d7
AM		 173
174/* Pad with this. */
175#define NOP 0x60000000
176
721956f4
AM		 177/* Some other nops. */
178#define CROR_151515 0x4def7b82
179#define CROR_313131 0x4ffffb82
180
cedb70c5 181/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 182#define LI_R0_0 0x38000000 /* li %r0,0 */
183#define B_DOT 0x48000000 /* b . */
184
185/* After that, we need two instructions to load the index, followed by
186 a branch. */
187#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 188#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 189
deb0e272
AM		 190/* Instructions used by the save and restore reg functions. */
191#define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
192#define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
193#define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
194#define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
82bd7b59
AM		 195#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
196#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
deb0e272
AM		 197#define LI_R12_0 0x39800000 /* li %r12,0 */
198#define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
199#define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
200#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
82bd7b59
AM		 201#define BLR 0x4e800020 /* blr */
202
41bd81ab
AM		 203/* Since .opd is an array of descriptors and each entry will end up
204 with identical R_PPC64_RELATIVE relocs, there is really no need to
205 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 206 relocate .opd without reloc entries. */
41bd81ab
AM		 207#ifndef NO_OPD_RELOCS
208#define NO_OPD_RELOCS 0
209#endif
5bd4f169 210\f
f5e87a1d 211#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 212
5bd4f169 213/* Relocation HOWTO's. */
04c9666a 214static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 215
216static reloc_howto_type ppc64_elf_howto_raw[] = {
217 /* This reloc does nothing. */
218 HOWTO (R_PPC64_NONE, /* type */
219 0, /* rightshift */
411e1bfb
AM		 220 2, /* size (0 = byte, 1 = short, 2 = long) */
221 32, /* bitsize */
b34976b6 222 FALSE, /* pc_relative */
5bd4f169 223 0, /* bitpos */
f5e87a1d 224 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 225 bfd_elf_generic_reloc, /* special_function */
226 "R_PPC64_NONE", /* name */
b34976b6 227 FALSE, /* partial_inplace */
d006db6c 228 0, /* src_mask */
5bd4f169 229 0, /* dst_mask */
b34976b6 230 FALSE), /* pcrel_offset */
5bd4f169
AM		 231
232 /* A standard 32 bit relocation. */
233 HOWTO (R_PPC64_ADDR32, /* type */
234 0, /* rightshift */
235 2, /* size (0 = byte, 1 = short, 2 = long) */
236 32, /* bitsize */
b34976b6 237 FALSE, /* pc_relative */
5bd4f169
AM		 238 0, /* bitpos */
239 complain_overflow_bitfield, /* complain_on_overflow */
240 bfd_elf_generic_reloc, /* special_function */
241 "R_PPC64_ADDR32", /* name */
b34976b6 242 FALSE, /* partial_inplace */
5bd4f169
AM		 243 0, /* src_mask */
244 0xffffffff, /* dst_mask */
b34976b6 245 FALSE), /* pcrel_offset */
5bd4f169
AM		 246
247 /* An absolute 26 bit branch; the lower two bits must be zero.
248 FIXME: we don't check that, we just clear them. */
249 HOWTO (R_PPC64_ADDR24, /* type */
250 0, /* rightshift */
251 2, /* size (0 = byte, 1 = short, 2 = long) */
252 26, /* bitsize */
b34976b6 253 FALSE, /* pc_relative */
5bd4f169
AM		 254 0, /* bitpos */
255 complain_overflow_bitfield, /* complain_on_overflow */
256 bfd_elf_generic_reloc, /* special_function */
257 "R_PPC64_ADDR24", /* name */
b34976b6 258 FALSE, /* partial_inplace */
d006db6c 259 0, /* src_mask */
f5e87a1d 260 0x03fffffc, /* dst_mask */
b34976b6 261 FALSE), /* pcrel_offset */
5bd4f169
AM		 262
263 /* A standard 16 bit relocation. */
264 HOWTO (R_PPC64_ADDR16, /* type */
265 0, /* rightshift */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
267 16, /* bitsize */
b34976b6 268 FALSE, /* pc_relative */
5bd4f169
AM		 269 0, /* bitpos */
270 complain_overflow_bitfield, /* complain_on_overflow */
271 bfd_elf_generic_reloc, /* special_function */
272 "R_PPC64_ADDR16", /* name */
b34976b6 273 FALSE, /* partial_inplace */
5bd4f169
AM		 274 0, /* src_mask */
275 0xffff, /* dst_mask */
b34976b6 276 FALSE), /* pcrel_offset */
5bd4f169
AM		 277
278 /* A 16 bit relocation without overflow. */
279 HOWTO (R_PPC64_ADDR16_LO, /* type */
280 0, /* rightshift */
281 1, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
b34976b6 283 FALSE, /* pc_relative */
5bd4f169
AM		 284 0, /* bitpos */
285 complain_overflow_dont,/* complain_on_overflow */
286 bfd_elf_generic_reloc, /* special_function */
287 "R_PPC64_ADDR16_LO", /* name */
b34976b6 288 FALSE, /* partial_inplace */
5bd4f169
AM		 289 0, /* src_mask */
290 0xffff, /* dst_mask */
b34976b6 291 FALSE), /* pcrel_offset */
5bd4f169
AM		 292
293 /* Bits 16-31 of an address. */
294 HOWTO (R_PPC64_ADDR16_HI, /* type */
295 16, /* rightshift */
296 1, /* size (0 = byte, 1 = short, 2 = long) */
297 16, /* bitsize */
b34976b6 298 FALSE, /* pc_relative */
5bd4f169
AM		 299 0, /* bitpos */
300 complain_overflow_dont, /* complain_on_overflow */
301 bfd_elf_generic_reloc, /* special_function */
302 "R_PPC64_ADDR16_HI", /* name */
b34976b6 303 FALSE, /* partial_inplace */
5bd4f169
AM		 304 0, /* src_mask */
305 0xffff, /* dst_mask */
b34976b6 306 FALSE), /* pcrel_offset */
5bd4f169
AM		 307
308 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
309 bits, treated as a signed number, is negative. */
310 HOWTO (R_PPC64_ADDR16_HA, /* type */
311 16, /* rightshift */
312 1, /* size (0 = byte, 1 = short, 2 = long) */
313 16, /* bitsize */
b34976b6 314 FALSE, /* pc_relative */
5bd4f169
AM		 315 0, /* bitpos */
316 complain_overflow_dont, /* complain_on_overflow */
805fc799 317 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 318 "R_PPC64_ADDR16_HA", /* name */
b34976b6 319 FALSE, /* partial_inplace */
5bd4f169
AM		 320 0, /* src_mask */
321 0xffff, /* dst_mask */
b34976b6 322 FALSE), /* pcrel_offset */
5bd4f169
AM		 323
324 /* An absolute 16 bit branch; the lower two bits must be zero.
325 FIXME: we don't check that, we just clear them. */
326 HOWTO (R_PPC64_ADDR14, /* type */
327 0, /* rightshift */
328 2, /* size (0 = byte, 1 = short, 2 = long) */
329 16, /* bitsize */
b34976b6 330 FALSE, /* pc_relative */
5bd4f169
AM		 331 0, /* bitpos */
332 complain_overflow_bitfield, /* complain_on_overflow */
2441e016 333 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 334 "R_PPC64_ADDR14", /* name */
b34976b6 335 FALSE, /* partial_inplace */
d006db6c 336 0, /* src_mask */
f5e87a1d 337 0x0000fffc, /* dst_mask */
b34976b6 338 FALSE), /* pcrel_offset */
5bd4f169
AM		 339
340 /* An absolute 16 bit branch, for which bit 10 should be set to
341 indicate that the branch is expected to be taken. The lower two
342 bits must be zero. */
343 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
344 0, /* rightshift */
345 2, /* size (0 = byte, 1 = short, 2 = long) */
346 16, /* bitsize */
b34976b6 347 FALSE, /* pc_relative */
5bd4f169
AM		 348 0, /* bitpos */
349 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 350 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 351 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 352 FALSE, /* partial_inplace */
d006db6c 353 0, /* src_mask */
f5e87a1d 354 0x0000fffc, /* dst_mask */
b34976b6 355 FALSE), /* pcrel_offset */
5bd4f169
AM		 356
357 /* An absolute 16 bit branch, for which bit 10 should be set to
358 indicate that the branch is not expected to be taken. The lower
359 two bits must be zero. */
360 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
361 0, /* rightshift */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
363 16, /* bitsize */
b34976b6 364 FALSE, /* pc_relative */
5bd4f169
AM		 365 0, /* bitpos */
366 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 367 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 368 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 369 FALSE, /* partial_inplace */
d006db6c 370 0, /* src_mask */
f5e87a1d 371 0x0000fffc, /* dst_mask */
b34976b6 372 FALSE), /* pcrel_offset */
5bd4f169
AM		 373
374 /* A relative 26 bit branch; the lower two bits must be zero. */
375 HOWTO (R_PPC64_REL24, /* type */
376 0, /* rightshift */
377 2, /* size (0 = byte, 1 = short, 2 = long) */
378 26, /* bitsize */
b34976b6 379 TRUE, /* pc_relative */
5bd4f169
AM		 380 0, /* bitpos */
381 complain_overflow_signed, /* complain_on_overflow */
2441e016 382 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 383 "R_PPC64_REL24", /* name */
b34976b6 384 FALSE, /* partial_inplace */
d006db6c 385 0, /* src_mask */
f5e87a1d 386 0x03fffffc, /* dst_mask */
b34976b6 387 TRUE), /* pcrel_offset */
5bd4f169
AM		 388
389 /* A relative 16 bit branch; the lower two bits must be zero. */
390 HOWTO (R_PPC64_REL14, /* type */
391 0, /* rightshift */
392 2, /* size (0 = byte, 1 = short, 2 = long) */
393 16, /* bitsize */
b34976b6 394 TRUE, /* pc_relative */
5bd4f169
AM		 395 0, /* bitpos */
396 complain_overflow_signed, /* complain_on_overflow */
2441e016 397 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 398 "R_PPC64_REL14", /* name */
b34976b6 399 FALSE, /* partial_inplace */
d006db6c 400 0, /* src_mask */
f5e87a1d 401 0x0000fffc, /* dst_mask */
b34976b6 402 TRUE), /* pcrel_offset */
5bd4f169
AM		 403
404 /* A relative 16 bit branch. Bit 10 should be set to indicate that
405 the branch is expected to be taken. The lower two bits must be
406 zero. */
407 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
408 0, /* rightshift */
409 2, /* size (0 = byte, 1 = short, 2 = long) */
410 16, /* bitsize */
b34976b6 411 TRUE, /* pc_relative */
5bd4f169
AM		 412 0, /* bitpos */
413 complain_overflow_signed, /* complain_on_overflow */
805fc799 414 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 415 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 416 FALSE, /* partial_inplace */
d006db6c 417 0, /* src_mask */
f5e87a1d 418 0x0000fffc, /* dst_mask */
b34976b6 419 TRUE), /* pcrel_offset */
5bd4f169
AM		 420
421 /* A relative 16 bit branch. Bit 10 should be set to indicate that
422 the branch is not expected to be taken. The lower two bits must
423 be zero. */
424 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
425 0, /* rightshift */
426 2, /* size (0 = byte, 1 = short, 2 = long) */
427 16, /* bitsize */
b34976b6 428 TRUE, /* pc_relative */
5bd4f169
AM		 429 0, /* bitpos */
430 complain_overflow_signed, /* complain_on_overflow */
805fc799 431 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 432 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 433 FALSE, /* partial_inplace */
d006db6c 434 0, /* src_mask */
f5e87a1d 435 0x0000fffc, /* dst_mask */
b34976b6 436 TRUE), /* pcrel_offset */
5bd4f169
AM		 437
438 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
439 symbol. */
440 HOWTO (R_PPC64_GOT16, /* type */
441 0, /* rightshift */
442 1, /* size (0 = byte, 1 = short, 2 = long) */
443 16, /* bitsize */
b34976b6 444 FALSE, /* pc_relative */
5bd4f169
AM		 445 0, /* bitpos */
446 complain_overflow_signed, /* complain_on_overflow */
805fc799 447 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 448 "R_PPC64_GOT16", /* name */
b34976b6 449 FALSE, /* partial_inplace */
5bd4f169
AM		 450 0, /* src_mask */
451 0xffff, /* dst_mask */
b34976b6 452 FALSE), /* pcrel_offset */
5bd4f169
AM		 453
454 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
455 the symbol. */
456 HOWTO (R_PPC64_GOT16_LO, /* type */
457 0, /* rightshift */
458 1, /* size (0 = byte, 1 = short, 2 = long) */
459 16, /* bitsize */
b34976b6 460 FALSE, /* pc_relative */
5bd4f169
AM		 461 0, /* bitpos */
462 complain_overflow_dont, /* complain_on_overflow */
805fc799 463 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 464 "R_PPC64_GOT16_LO", /* name */
b34976b6 465 FALSE, /* partial_inplace */
5bd4f169
AM		 466 0, /* src_mask */
467 0xffff, /* dst_mask */
b34976b6 468 FALSE), /* pcrel_offset */
5bd4f169
AM		 469
470 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
471 the symbol. */
472 HOWTO (R_PPC64_GOT16_HI, /* type */
473 16, /* rightshift */
474 1, /* size (0 = byte, 1 = short, 2 = long) */
475 16, /* bitsize */
b34976b6 476 FALSE, /* pc_relative */
5bd4f169
AM		 477 0, /* bitpos */
478 complain_overflow_dont,/* complain_on_overflow */
805fc799 479 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 480 "R_PPC64_GOT16_HI", /* name */
b34976b6 481 FALSE, /* partial_inplace */
5bd4f169
AM		 482 0, /* src_mask */
483 0xffff, /* dst_mask */
b34976b6 484 FALSE), /* pcrel_offset */
5bd4f169
AM		 485
486 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
487 the symbol. */
488 HOWTO (R_PPC64_GOT16_HA, /* type */
489 16, /* rightshift */
490 1, /* size (0 = byte, 1 = short, 2 = long) */
491 16, /* bitsize */
b34976b6 492 FALSE, /* pc_relative */
5bd4f169
AM		 493 0, /* bitpos */
494 complain_overflow_dont,/* complain_on_overflow */
805fc799 495 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 496 "R_PPC64_GOT16_HA", /* name */
b34976b6 497 FALSE, /* partial_inplace */
5bd4f169
AM		 498 0, /* src_mask */
499 0xffff, /* dst_mask */
b34976b6 500 FALSE), /* pcrel_offset */
5bd4f169
AM		 501
502 /* This is used only by the dynamic linker. The symbol should exist
503 both in the object being run and in some shared library. The
504 dynamic linker copies the data addressed by the symbol from the
505 shared library into the object, because the object being
506 run has to have the data at some particular address. */
507 HOWTO (R_PPC64_COPY, /* type */
508 0, /* rightshift */
f5e87a1d
AM		 509 0, /* this one is variable size */
510 0, /* bitsize */
b34976b6 511 FALSE, /* pc_relative */
5bd4f169 512 0, /* bitpos */
f5e87a1d
AM		 513 complain_overflow_dont, /* complain_on_overflow */
514 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 515 "R_PPC64_COPY", /* name */
b34976b6 516 FALSE, /* partial_inplace */
5bd4f169
AM		 517 0, /* src_mask */
518 0, /* dst_mask */
b34976b6 519 FALSE), /* pcrel_offset */
5bd4f169
AM		 520
521 /* Like R_PPC64_ADDR64, but used when setting global offset table
522 entries. */
523 HOWTO (R_PPC64_GLOB_DAT, /* type */
524 0, /* rightshift */
525 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
526 64, /* bitsize */
b34976b6 527 FALSE, /* pc_relative */
5bd4f169
AM		 528 0, /* bitpos */
529 complain_overflow_dont, /* complain_on_overflow */
805fc799 530 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 531 "R_PPC64_GLOB_DAT", /* name */
b34976b6 532 FALSE, /* partial_inplace */
5bd4f169 533 0, /* src_mask */
f5e87a1d 534 ONES (64), /* dst_mask */
b34976b6 535 FALSE), /* pcrel_offset */
5bd4f169
AM		 536
537 /* Created by the link editor. Marks a procedure linkage table
538 entry for a symbol. */
539 HOWTO (R_PPC64_JMP_SLOT, /* type */
540 0, /* rightshift */
541 0, /* size (0 = byte, 1 = short, 2 = long) */
542 0, /* bitsize */
b34976b6 543 FALSE, /* pc_relative */
5bd4f169
AM		 544 0, /* bitpos */
545 complain_overflow_dont, /* complain_on_overflow */
805fc799 546 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 547 "R_PPC64_JMP_SLOT", /* name */
b34976b6 548 FALSE, /* partial_inplace */
5bd4f169
AM		 549 0, /* src_mask */
550 0, /* dst_mask */
b34976b6 551 FALSE), /* pcrel_offset */
5bd4f169
AM		 552
553 /* Used only by the dynamic linker. When the object is run, this
554 doubleword64 is set to the load address of the object, plus the
555 addend. */
556 HOWTO (R_PPC64_RELATIVE, /* type */
557 0, /* rightshift */
558 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
559 64, /* bitsize */
b34976b6 560 FALSE, /* pc_relative */
5bd4f169
AM		 561 0, /* bitpos */
562 complain_overflow_dont, /* complain_on_overflow */
563 bfd_elf_generic_reloc, /* special_function */
564 "R_PPC64_RELATIVE", /* name */
b34976b6 565 FALSE, /* partial_inplace */
5bd4f169 566 0, /* src_mask */
f5e87a1d 567 ONES (64), /* dst_mask */
b34976b6 568 FALSE), /* pcrel_offset */
5bd4f169
AM		 569
570 /* Like R_PPC64_ADDR32, but may be unaligned. */
571 HOWTO (R_PPC64_UADDR32, /* type */
572 0, /* rightshift */
573 2, /* size (0 = byte, 1 = short, 2 = long) */
574 32, /* bitsize */
b34976b6 575 FALSE, /* pc_relative */
5bd4f169
AM		 576 0, /* bitpos */
577 complain_overflow_bitfield, /* complain_on_overflow */
578 bfd_elf_generic_reloc, /* special_function */
579 "R_PPC64_UADDR32", /* name */
b34976b6 580 FALSE, /* partial_inplace */
5bd4f169
AM		 581 0, /* src_mask */
582 0xffffffff, /* dst_mask */
b34976b6 583 FALSE), /* pcrel_offset */
5bd4f169
AM		 584
585 /* Like R_PPC64_ADDR16, but may be unaligned. */
586 HOWTO (R_PPC64_UADDR16, /* type */
587 0, /* rightshift */
588 1, /* size (0 = byte, 1 = short, 2 = long) */
589 16, /* bitsize */
b34976b6 590 FALSE, /* pc_relative */
5bd4f169
AM		 591 0, /* bitpos */
592 complain_overflow_bitfield, /* complain_on_overflow */
593 bfd_elf_generic_reloc, /* special_function */
594 "R_PPC64_UADDR16", /* name */
b34976b6 595 FALSE, /* partial_inplace */
5bd4f169
AM		 596 0, /* src_mask */
597 0xffff, /* dst_mask */
b34976b6 598 FALSE), /* pcrel_offset */
5bd4f169
AM		 599
600 /* 32-bit PC relative. */
601 HOWTO (R_PPC64_REL32, /* type */
602 0, /* rightshift */
603 2, /* size (0 = byte, 1 = short, 2 = long) */
604 32, /* bitsize */
b34976b6 605 TRUE, /* pc_relative */
5bd4f169 606 0, /* bitpos */
cedb70c5 607 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM		 608 complain_overflow_signed, /* complain_on_overflow */
609 bfd_elf_generic_reloc, /* special_function */
610 "R_PPC64_REL32", /* name */
b34976b6 611 FALSE, /* partial_inplace */
5bd4f169
AM		 612 0, /* src_mask */
613 0xffffffff, /* dst_mask */
b34976b6 614 TRUE), /* pcrel_offset */
5bd4f169 615
10ed1bba 616 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 617 HOWTO (R_PPC64_PLT32, /* type */
618 0, /* rightshift */
619 2, /* size (0 = byte, 1 = short, 2 = long) */
620 32, /* bitsize */
b34976b6 621 FALSE, /* pc_relative */
5bd4f169
AM		 622 0, /* bitpos */
623 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 624 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 625 "R_PPC64_PLT32", /* name */
b34976b6 626 FALSE, /* partial_inplace */
5bd4f169 627 0, /* src_mask */
f5e87a1d 628 0xffffffff, /* dst_mask */
b34976b6 629 FALSE), /* pcrel_offset */
5bd4f169
AM		 630
631 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
632 FIXME: R_PPC64_PLTREL32 not supported. */
633 HOWTO (R_PPC64_PLTREL32, /* type */
634 0, /* rightshift */
635 2, /* size (0 = byte, 1 = short, 2 = long) */
636 32, /* bitsize */
b34976b6 637 TRUE, /* pc_relative */
5bd4f169
AM		 638 0, /* bitpos */
639 complain_overflow_signed, /* complain_on_overflow */
640 bfd_elf_generic_reloc, /* special_function */
641 "R_PPC64_PLTREL32", /* name */
b34976b6 642 FALSE, /* partial_inplace */
5bd4f169 643 0, /* src_mask */
f5e87a1d 644 0xffffffff, /* dst_mask */
b34976b6 645 TRUE), /* pcrel_offset */
5bd4f169
AM		 646
647 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
648 the symbol. */
649 HOWTO (R_PPC64_PLT16_LO, /* type */
650 0, /* rightshift */
651 1, /* size (0 = byte, 1 = short, 2 = long) */
652 16, /* bitsize */
b34976b6 653 FALSE, /* pc_relative */
5bd4f169
AM		 654 0, /* bitpos */
655 complain_overflow_dont, /* complain_on_overflow */
805fc799 656 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 657 "R_PPC64_PLT16_LO", /* name */
b34976b6 658 FALSE, /* partial_inplace */
5bd4f169
AM		 659 0, /* src_mask */
660 0xffff, /* dst_mask */
b34976b6 661 FALSE), /* pcrel_offset */
5bd4f169
AM		 662
663 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
664 the symbol. */
665 HOWTO (R_PPC64_PLT16_HI, /* type */
666 16, /* rightshift */
667 1, /* size (0 = byte, 1 = short, 2 = long) */
668 16, /* bitsize */
b34976b6 669 FALSE, /* pc_relative */
5bd4f169
AM		 670 0, /* bitpos */
671 complain_overflow_dont, /* complain_on_overflow */
805fc799 672 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 673 "R_PPC64_PLT16_HI", /* name */
b34976b6 674 FALSE, /* partial_inplace */
5bd4f169
AM		 675 0, /* src_mask */
676 0xffff, /* dst_mask */
b34976b6 677 FALSE), /* pcrel_offset */
5bd4f169
AM		 678
679 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
680 the symbol. */
681 HOWTO (R_PPC64_PLT16_HA, /* type */
682 16, /* rightshift */
683 1, /* size (0 = byte, 1 = short, 2 = long) */
684 16, /* bitsize */
b34976b6 685 FALSE, /* pc_relative */
5bd4f169
AM		 686 0, /* bitpos */
687 complain_overflow_dont, /* complain_on_overflow */
805fc799 688 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 689 "R_PPC64_PLT16_HA", /* name */
b34976b6 690 FALSE, /* partial_inplace */
5bd4f169
AM		 691 0, /* src_mask */
692 0xffff, /* dst_mask */
b34976b6 693 FALSE), /* pcrel_offset */
5bd4f169 694
c061c2d8 695 /* 16-bit section relative relocation. */
5bd4f169
AM		 696 HOWTO (R_PPC64_SECTOFF, /* type */
697 0, /* rightshift */
c061c2d8
AM		 698 1, /* size (0 = byte, 1 = short, 2 = long) */
699 16, /* bitsize */
b34976b6 700 FALSE, /* pc_relative */
5bd4f169
AM		 701 0, /* bitpos */
702 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 703 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 704 "R_PPC64_SECTOFF", /* name */
b34976b6 705 FALSE, /* partial_inplace */
5bd4f169 706 0, /* src_mask */
c061c2d8 707 0xffff, /* dst_mask */
b34976b6 708 FALSE), /* pcrel_offset */
5bd4f169 709
c061c2d8 710 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 711 HOWTO (R_PPC64_SECTOFF_LO, /* type */
712 0, /* rightshift */
713 1, /* size (0 = byte, 1 = short, 2 = long) */
714 16, /* bitsize */
b34976b6 715 FALSE, /* pc_relative */
5bd4f169
AM		 716 0, /* bitpos */
717 complain_overflow_dont, /* complain_on_overflow */
805fc799 718 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 719 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 720 FALSE, /* partial_inplace */
5bd4f169
AM		 721 0, /* src_mask */
722 0xffff, /* dst_mask */
b34976b6 723 FALSE), /* pcrel_offset */
5bd4f169
AM		 724
725 /* 16-bit upper half section relative relocation. */
726 HOWTO (R_PPC64_SECTOFF_HI, /* type */
727 16, /* rightshift */
728 1, /* size (0 = byte, 1 = short, 2 = long) */
729 16, /* bitsize */
b34976b6 730 FALSE, /* pc_relative */
5bd4f169
AM		 731 0, /* bitpos */
732 complain_overflow_dont, /* complain_on_overflow */
805fc799 733 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 734 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 735 FALSE, /* partial_inplace */
5bd4f169
AM		 736 0, /* src_mask */
737 0xffff, /* dst_mask */
b34976b6 738 FALSE), /* pcrel_offset */
5bd4f169
AM		 739
740 /* 16-bit upper half adjusted section relative relocation. */
741 HOWTO (R_PPC64_SECTOFF_HA, /* type */
742 16, /* rightshift */
743 1, /* size (0 = byte, 1 = short, 2 = long) */
744 16, /* bitsize */
b34976b6 745 FALSE, /* pc_relative */
5bd4f169
AM		 746 0, /* bitpos */
747 complain_overflow_dont, /* complain_on_overflow */
805fc799 748 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 749 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 750 FALSE, /* partial_inplace */
5bd4f169
AM		 751 0, /* src_mask */
752 0xffff, /* dst_mask */
b34976b6 753 FALSE), /* pcrel_offset */
5bd4f169 754
04c9666a
AM		 755 /* Like R_PPC64_REL24 without touching the two least significant bits. */
756 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 757 2, /* rightshift */
758 2, /* size (0 = byte, 1 = short, 2 = long) */
759 30, /* bitsize */
b34976b6 760 TRUE, /* pc_relative */
5bd4f169
AM		 761 0, /* bitpos */
762 complain_overflow_dont, /* complain_on_overflow */
763 bfd_elf_generic_reloc, /* special_function */
04c9666a 764 "R_PPC64_REL30", /* name */
b34976b6 765 FALSE, /* partial_inplace */
d006db6c 766 0, /* src_mask */
5bd4f169 767 0xfffffffc, /* dst_mask */
b34976b6 768 TRUE), /* pcrel_offset */
5bd4f169
AM		 769
770 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
771
772 /* A standard 64-bit relocation. */
773 HOWTO (R_PPC64_ADDR64, /* type */
774 0, /* rightshift */
775 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
776 64, /* bitsize */
b34976b6 777 FALSE, /* pc_relative */
5bd4f169
AM		 778 0, /* bitpos */
779 complain_overflow_dont, /* complain_on_overflow */
780 bfd_elf_generic_reloc, /* special_function */
781 "R_PPC64_ADDR64", /* name */
b34976b6 782 FALSE, /* partial_inplace */
5bd4f169 783 0, /* src_mask */
f5e87a1d 784 ONES (64), /* dst_mask */
b34976b6 785 FALSE), /* pcrel_offset */
5bd4f169
AM		 786
787 /* The bits 32-47 of an address. */
788 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
789 32, /* rightshift */
790 1, /* size (0 = byte, 1 = short, 2 = long) */
791 16, /* bitsize */
b34976b6 792 FALSE, /* pc_relative */
5bd4f169
AM		 793 0, /* bitpos */
794 complain_overflow_dont, /* complain_on_overflow */
795 bfd_elf_generic_reloc, /* special_function */
796 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 797 FALSE, /* partial_inplace */
5bd4f169
AM		 798 0, /* src_mask */
799 0xffff, /* dst_mask */
b34976b6 800 FALSE), /* pcrel_offset */
5bd4f169
AM		 801
802 /* The bits 32-47 of an address, plus 1 if the contents of the low
803 16 bits, treated as a signed number, is negative. */
804 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
805 32, /* rightshift */
806 1, /* size (0 = byte, 1 = short, 2 = long) */
807 16, /* bitsize */
b34976b6 808 FALSE, /* pc_relative */
5bd4f169
AM		 809 0, /* bitpos */
810 complain_overflow_dont, /* complain_on_overflow */
805fc799 811 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 812 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 813 FALSE, /* partial_inplace */
5bd4f169
AM		 814 0, /* src_mask */
815 0xffff, /* dst_mask */
b34976b6 816 FALSE), /* pcrel_offset */
5bd4f169
AM		 817
818 /* The bits 48-63 of an address. */
819 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
820 48, /* rightshift */
821 1, /* size (0 = byte, 1 = short, 2 = long) */
822 16, /* bitsize */
b34976b6 823 FALSE, /* pc_relative */
5bd4f169
AM		 824 0, /* bitpos */
825 complain_overflow_dont, /* complain_on_overflow */
826 bfd_elf_generic_reloc, /* special_function */
827 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 828 FALSE, /* partial_inplace */
5bd4f169
AM		 829 0, /* src_mask */
830 0xffff, /* dst_mask */
b34976b6 831 FALSE), /* pcrel_offset */
5bd4f169
AM		 832
833 /* The bits 48-63 of an address, plus 1 if the contents of the low
834 16 bits, treated as a signed number, is negative. */
835 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
836 48, /* rightshift */
837 1, /* size (0 = byte, 1 = short, 2 = long) */
838 16, /* bitsize */
b34976b6 839 FALSE, /* pc_relative */
5bd4f169
AM		 840 0, /* bitpos */
841 complain_overflow_dont, /* complain_on_overflow */
805fc799 842 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 843 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 844 FALSE, /* partial_inplace */
5bd4f169
AM		 845 0, /* src_mask */
846 0xffff, /* dst_mask */
b34976b6 847 FALSE), /* pcrel_offset */
5bd4f169
AM		 848
849 /* Like ADDR64, but may be unaligned. */
850 HOWTO (R_PPC64_UADDR64, /* type */
851 0, /* rightshift */
852 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
853 64, /* bitsize */
b34976b6 854 FALSE, /* pc_relative */
5bd4f169
AM		 855 0, /* bitpos */
856 complain_overflow_dont, /* complain_on_overflow */
857 bfd_elf_generic_reloc, /* special_function */
858 "R_PPC64_UADDR64", /* name */
b34976b6 859 FALSE, /* partial_inplace */
5bd4f169 860 0, /* src_mask */
f5e87a1d 861 ONES (64), /* dst_mask */
b34976b6 862 FALSE), /* pcrel_offset */
5bd4f169
AM		 863
864 /* 64-bit relative relocation. */
865 HOWTO (R_PPC64_REL64, /* type */
866 0, /* rightshift */
867 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
868 64, /* bitsize */
b34976b6 869 TRUE, /* pc_relative */
5bd4f169
AM		 870 0, /* bitpos */
871 complain_overflow_dont, /* complain_on_overflow */
872 bfd_elf_generic_reloc, /* special_function */
873 "R_PPC64_REL64", /* name */
b34976b6 874 FALSE, /* partial_inplace */
5bd4f169 875 0, /* src_mask */
f5e87a1d 876 ONES (64), /* dst_mask */
b34976b6 877 TRUE), /* pcrel_offset */
5bd4f169 878
cedb70c5 879 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 880 HOWTO (R_PPC64_PLT64, /* type */
881 0, /* rightshift */
882 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
883 64, /* bitsize */
b34976b6 884 FALSE, /* pc_relative */
5bd4f169
AM		 885 0, /* bitpos */
886 complain_overflow_dont, /* complain_on_overflow */
805fc799 887 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 888 "R_PPC64_PLT64", /* name */
b34976b6 889 FALSE, /* partial_inplace */
5bd4f169 890 0, /* src_mask */
f5e87a1d 891 ONES (64), /* dst_mask */
b34976b6 892 FALSE), /* pcrel_offset */
5bd4f169
AM		 893
894 /* 64-bit PC relative relocation to the symbol's procedure linkage
895 table. */
896 /* FIXME: R_PPC64_PLTREL64 not supported. */
897 HOWTO (R_PPC64_PLTREL64, /* type */
898 0, /* rightshift */
899 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
900 64, /* bitsize */
b34976b6 901 TRUE, /* pc_relative */
5bd4f169
AM		 902 0, /* bitpos */
903 complain_overflow_dont, /* complain_on_overflow */
805fc799 904 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 905 "R_PPC64_PLTREL64", /* name */
b34976b6 906 FALSE, /* partial_inplace */
5bd4f169 907 0, /* src_mask */
f5e87a1d 908 ONES (64), /* dst_mask */
b34976b6 909 TRUE), /* pcrel_offset */
5bd4f169
AM		 910
911 /* 16 bit TOC-relative relocation. */
912
913 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
914 HOWTO (R_PPC64_TOC16, /* type */
915 0, /* rightshift */
916 1, /* size (0 = byte, 1 = short, 2 = long) */
917 16, /* bitsize */
b34976b6 918 FALSE, /* pc_relative */
5bd4f169
AM		 919 0, /* bitpos */
920 complain_overflow_signed, /* complain_on_overflow */
805fc799 921 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 922 "R_PPC64_TOC16", /* name */
b34976b6 923 FALSE, /* partial_inplace */
5bd4f169
AM		 924 0, /* src_mask */
925 0xffff, /* dst_mask */
b34976b6 926 FALSE), /* pcrel_offset */
5bd4f169
AM		 927
928 /* 16 bit TOC-relative relocation without overflow. */
929
930 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
931 HOWTO (R_PPC64_TOC16_LO, /* type */
932 0, /* rightshift */
933 1, /* size (0 = byte, 1 = short, 2 = long) */
934 16, /* bitsize */
b34976b6 935 FALSE, /* pc_relative */
5bd4f169
AM		 936 0, /* bitpos */
937 complain_overflow_dont, /* complain_on_overflow */
805fc799 938 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 939 "R_PPC64_TOC16_LO", /* name */
b34976b6 940 FALSE, /* partial_inplace */
5bd4f169
AM		 941 0, /* src_mask */
942 0xffff, /* dst_mask */
b34976b6 943 FALSE), /* pcrel_offset */
5bd4f169
AM		 944
945 /* 16 bit TOC-relative relocation, high 16 bits. */
946
947 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
948 HOWTO (R_PPC64_TOC16_HI, /* type */
949 16, /* rightshift */
950 1, /* size (0 = byte, 1 = short, 2 = long) */
951 16, /* bitsize */
b34976b6 952 FALSE, /* pc_relative */
5bd4f169
AM		 953 0, /* bitpos */
954 complain_overflow_dont, /* complain_on_overflow */
805fc799 955 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 956 "R_PPC64_TOC16_HI", /* name */
b34976b6 957 FALSE, /* partial_inplace */
5bd4f169
AM		 958 0, /* src_mask */
959 0xffff, /* dst_mask */
b34976b6 960 FALSE), /* pcrel_offset */
5bd4f169
AM		 961
962 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
963 contents of the low 16 bits, treated as a signed number, is
964 negative. */
965
966 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
967 HOWTO (R_PPC64_TOC16_HA, /* type */
968 16, /* rightshift */
969 1, /* size (0 = byte, 1 = short, 2 = long) */
970 16, /* bitsize */
b34976b6 971 FALSE, /* pc_relative */
5bd4f169
AM		 972 0, /* bitpos */
973 complain_overflow_dont, /* complain_on_overflow */
805fc799 974 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 975 "R_PPC64_TOC16_HA", /* name */
b34976b6 976 FALSE, /* partial_inplace */
5bd4f169
AM		 977 0, /* src_mask */
978 0xffff, /* dst_mask */
b34976b6 979 FALSE), /* pcrel_offset */
5bd4f169
AM		 980
981 /* 64-bit relocation; insert value of TOC base (.TOC.). */
982
983 /* R_PPC64_TOC 51 doubleword64 .TOC. */
984 HOWTO (R_PPC64_TOC, /* type */
985 0, /* rightshift */
986 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
987 64, /* bitsize */
b34976b6 988 FALSE, /* pc_relative */
5bd4f169
AM		 989 0, /* bitpos */
990 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 991 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 992 "R_PPC64_TOC", /* name */
b34976b6 993 FALSE, /* partial_inplace */
5bd4f169 994 0, /* src_mask */
f5e87a1d 995 ONES (64), /* dst_mask */
b34976b6 996 FALSE), /* pcrel_offset */
5bd4f169
AM		 997
998 /* Like R_PPC64_GOT16, but also informs the link editor that the
999 value to relocate may (!) refer to a PLT entry which the link
1000 editor (a) may replace with the symbol value. If the link editor
1001 is unable to fully resolve the symbol, it may (b) create a PLT
1002 entry and store the address to the new PLT entry in the GOT.
1003 This permits lazy resolution of function symbols at run time.
1004 The link editor may also skip all of this and just (c) emit a
1005 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1006 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1007 HOWTO (R_PPC64_PLTGOT16, /* type */
1008 0, /* rightshift */
1009 1, /* size (0 = byte, 1 = short, 2 = long) */
1010 16, /* bitsize */
b34976b6 1011 FALSE, /* pc_relative */
5bd4f169
AM		 1012 0, /* bitpos */
1013 complain_overflow_signed, /* complain_on_overflow */
805fc799 1014 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 1015 "R_PPC64_PLTGOT16", /* name */
1016 FALSE, /* partial_inplace */
1017 0, /* src_mask */
1018 0xffff, /* dst_mask */
1019 FALSE), /* pcrel_offset */
1020
1021 /* Like R_PPC64_PLTGOT16, but without overflow. */
1022 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1023 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1024 0, /* rightshift */
1025 1, /* size (0 = byte, 1 = short, 2 = long) */
1026 16, /* bitsize */
1027 FALSE, /* pc_relative */
1028 0, /* bitpos */
1029 complain_overflow_dont, /* complain_on_overflow */
1030 ppc64_elf_unhandled_reloc, /* special_function */
1031 "R_PPC64_PLTGOT16_LO", /* name */
1032 FALSE, /* partial_inplace */
1033 0, /* src_mask */
1034 0xffff, /* dst_mask */
1035 FALSE), /* pcrel_offset */
1036
1037 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1038 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1039 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1040 16, /* rightshift */
1041 1, /* size (0 = byte, 1 = short, 2 = long) */
1042 16, /* bitsize */
1043 FALSE, /* pc_relative */
1044 0, /* bitpos */
1045 complain_overflow_dont, /* complain_on_overflow */
1046 ppc64_elf_unhandled_reloc, /* special_function */
1047 "R_PPC64_PLTGOT16_HI", /* name */
1048 FALSE, /* partial_inplace */
1049 0, /* src_mask */
1050 0xffff, /* dst_mask */
1051 FALSE), /* pcrel_offset */
1052
1053 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1054 1 if the contents of the low 16 bits, treated as a signed number,
1055 is negative. */
1056 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1057 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1058 16, /* rightshift */
1059 1, /* size (0 = byte, 1 = short, 2 = long) */
1060 16, /* bitsize */
1061 FALSE, /* pc_relative */
1062 0, /* bitpos */
1063 complain_overflow_dont,/* complain_on_overflow */
1064 ppc64_elf_unhandled_reloc, /* special_function */
1065 "R_PPC64_PLTGOT16_HA", /* name */
1066 FALSE, /* partial_inplace */
1067 0, /* src_mask */
1068 0xffff, /* dst_mask */
1069 FALSE), /* pcrel_offset */
1070
1071 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1072 HOWTO (R_PPC64_ADDR16_DS, /* type */
1073 0, /* rightshift */
1074 1, /* size (0 = byte, 1 = short, 2 = long) */
1075 16, /* bitsize */
1076 FALSE, /* pc_relative */
1077 0, /* bitpos */
1078 complain_overflow_bitfield, /* complain_on_overflow */
1079 bfd_elf_generic_reloc, /* special_function */
1080 "R_PPC64_ADDR16_DS", /* name */
1081 FALSE, /* partial_inplace */
1082 0, /* src_mask */
1083 0xfffc, /* dst_mask */
1084 FALSE), /* pcrel_offset */
1085
1086 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1087 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1088 0, /* rightshift */
1089 1, /* size (0 = byte, 1 = short, 2 = long) */
1090 16, /* bitsize */
1091 FALSE, /* pc_relative */
1092 0, /* bitpos */
1093 complain_overflow_dont,/* complain_on_overflow */
1094 bfd_elf_generic_reloc, /* special_function */
1095 "R_PPC64_ADDR16_LO_DS",/* name */
1096 FALSE, /* partial_inplace */
1097 0, /* src_mask */
1098 0xfffc, /* dst_mask */
1099 FALSE), /* pcrel_offset */
1100
1101 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1102 HOWTO (R_PPC64_GOT16_DS, /* type */
1103 0, /* rightshift */
1104 1, /* size (0 = byte, 1 = short, 2 = long) */
1105 16, /* bitsize */
1106 FALSE, /* pc_relative */
1107 0, /* bitpos */
1108 complain_overflow_signed, /* complain_on_overflow */
1109 ppc64_elf_unhandled_reloc, /* special_function */
1110 "R_PPC64_GOT16_DS", /* name */
1111 FALSE, /* partial_inplace */
1112 0, /* src_mask */
1113 0xfffc, /* dst_mask */
1114 FALSE), /* pcrel_offset */
1115
1116 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1117 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1118 0, /* rightshift */
1119 1, /* size (0 = byte, 1 = short, 2 = long) */
1120 16, /* bitsize */
1121 FALSE, /* pc_relative */
1122 0, /* bitpos */
1123 complain_overflow_dont, /* complain_on_overflow */
1124 ppc64_elf_unhandled_reloc, /* special_function */
1125 "R_PPC64_GOT16_LO_DS", /* name */
1126 FALSE, /* partial_inplace */
1127 0, /* src_mask */
1128 0xfffc, /* dst_mask */
1129 FALSE), /* pcrel_offset */
1130
1131 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1132 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1133 0, /* rightshift */
1134 1, /* size (0 = byte, 1 = short, 2 = long) */
1135 16, /* bitsize */
1136 FALSE, /* pc_relative */
1137 0, /* bitpos */
1138 complain_overflow_dont, /* complain_on_overflow */
1139 ppc64_elf_unhandled_reloc, /* special_function */
1140 "R_PPC64_PLT16_LO_DS", /* name */
1141 FALSE, /* partial_inplace */
1142 0, /* src_mask */
1143 0xfffc, /* dst_mask */
1144 FALSE), /* pcrel_offset */
1145
1146 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1147 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1148 0, /* rightshift */
1149 1, /* size (0 = byte, 1 = short, 2 = long) */
1150 16, /* bitsize */
1151 FALSE, /* pc_relative */
1152 0, /* bitpos */
1153 complain_overflow_bitfield, /* complain_on_overflow */
1154 ppc64_elf_sectoff_reloc, /* special_function */
1155 "R_PPC64_SECTOFF_DS", /* name */
1156 FALSE, /* partial_inplace */
1157 0, /* src_mask */
1158 0xfffc, /* dst_mask */
1159 FALSE), /* pcrel_offset */
1160
1161 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1162 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1163 0, /* rightshift */
1164 1, /* size (0 = byte, 1 = short, 2 = long) */
1165 16, /* bitsize */
1166 FALSE, /* pc_relative */
1167 0, /* bitpos */
1168 complain_overflow_dont, /* complain_on_overflow */
1169 ppc64_elf_sectoff_reloc, /* special_function */
1170 "R_PPC64_SECTOFF_LO_DS",/* name */
1171 FALSE, /* partial_inplace */
1172 0, /* src_mask */
1173 0xfffc, /* dst_mask */
1174 FALSE), /* pcrel_offset */
1175
1176 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1177 HOWTO (R_PPC64_TOC16_DS, /* type */
1178 0, /* rightshift */
1179 1, /* size (0 = byte, 1 = short, 2 = long) */
1180 16, /* bitsize */
1181 FALSE, /* pc_relative */
1182 0, /* bitpos */
1183 complain_overflow_signed, /* complain_on_overflow */
1184 ppc64_elf_toc_reloc, /* special_function */
1185 "R_PPC64_TOC16_DS", /* name */
1186 FALSE, /* partial_inplace */
1187 0, /* src_mask */
1188 0xfffc, /* dst_mask */
1189 FALSE), /* pcrel_offset */
1190
1191 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1192 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1193 0, /* rightshift */
1194 1, /* size (0 = byte, 1 = short, 2 = long) */
1195 16, /* bitsize */
1196 FALSE, /* pc_relative */
1197 0, /* bitpos */
1198 complain_overflow_dont, /* complain_on_overflow */
1199 ppc64_elf_toc_reloc, /* special_function */
1200 "R_PPC64_TOC16_LO_DS", /* name */
1201 FALSE, /* partial_inplace */
1202 0, /* src_mask */
1203 0xfffc, /* dst_mask */
1204 FALSE), /* pcrel_offset */
1205
1206 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1207 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
6bfdb61b 1208 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
411e1bfb
AM		 1209 0, /* rightshift */
1210 1, /* size (0 = byte, 1 = short, 2 = long) */
1211 16, /* bitsize */
1212 FALSE, /* pc_relative */
1213 0, /* bitpos */
1214 complain_overflow_signed, /* complain_on_overflow */
1215 ppc64_elf_unhandled_reloc, /* special_function */
1216 "R_PPC64_PLTGOT16_DS", /* name */
1217 FALSE, /* partial_inplace */
1218 0, /* src_mask */
1219 0xfffc, /* dst_mask */
1220 FALSE), /* pcrel_offset */
1221
1222 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1223 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1224 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1225 0, /* rightshift */
1226 1, /* size (0 = byte, 1 = short, 2 = long) */
1227 16, /* bitsize */
1228 FALSE, /* pc_relative */
1229 0, /* bitpos */
1230 complain_overflow_dont, /* complain_on_overflow */
1231 ppc64_elf_unhandled_reloc, /* special_function */
1232 "R_PPC64_PLTGOT16_LO_DS",/* name */
1233 FALSE, /* partial_inplace */
1234 0, /* src_mask */
1235 0xfffc, /* dst_mask */
1236 FALSE), /* pcrel_offset */
1237
1238 /* Marker reloc for TLS. */
1239 HOWTO (R_PPC64_TLS,
1240 0, /* rightshift */
1241 2, /* size (0 = byte, 1 = short, 2 = long) */
1242 32, /* bitsize */
1243 FALSE, /* pc_relative */
1244 0, /* bitpos */
1245 complain_overflow_dont, /* complain_on_overflow */
1246 bfd_elf_generic_reloc, /* special_function */
1247 "R_PPC64_TLS", /* name */
1248 FALSE, /* partial_inplace */
1249 0, /* src_mask */
1250 0, /* dst_mask */
1251 FALSE), /* pcrel_offset */
1252
1253 /* Computes the load module index of the load module that contains the
1254 definition of its TLS sym. */
1255 HOWTO (R_PPC64_DTPMOD64,
1256 0, /* rightshift */
1257 4, /* size (0 = byte, 1 = short, 2 = long) */
1258 64, /* bitsize */
1259 FALSE, /* pc_relative */
1260 0, /* bitpos */
1261 complain_overflow_dont, /* complain_on_overflow */
1262 ppc64_elf_unhandled_reloc, /* special_function */
1263 "R_PPC64_DTPMOD64", /* name */
1264 FALSE, /* partial_inplace */
1265 0, /* src_mask */
1266 ONES (64), /* dst_mask */
1267 FALSE), /* pcrel_offset */
1268
1269 /* Computes a dtv-relative displacement, the difference between the value
1270 of sym+add and the base address of the thread-local storage block that
1271 contains the definition of sym, minus 0x8000. */
1272 HOWTO (R_PPC64_DTPREL64,
1273 0, /* rightshift */
1274 4, /* size (0 = byte, 1 = short, 2 = long) */
1275 64, /* bitsize */
1276 FALSE, /* pc_relative */
1277 0, /* bitpos */
1278 complain_overflow_dont, /* complain_on_overflow */
1279 ppc64_elf_unhandled_reloc, /* special_function */
1280 "R_PPC64_DTPREL64", /* name */
1281 FALSE, /* partial_inplace */
1282 0, /* src_mask */
1283 ONES (64), /* dst_mask */
1284 FALSE), /* pcrel_offset */
1285
1286 /* A 16 bit dtprel reloc. */
1287 HOWTO (R_PPC64_DTPREL16,
1288 0, /* rightshift */
1289 1, /* size (0 = byte, 1 = short, 2 = long) */
1290 16, /* bitsize */
1291 FALSE, /* pc_relative */
1292 0, /* bitpos */
1293 complain_overflow_signed, /* complain_on_overflow */
1294 ppc64_elf_unhandled_reloc, /* special_function */
1295 "R_PPC64_DTPREL16", /* name */
1296 FALSE, /* partial_inplace */
1297 0, /* src_mask */
1298 0xffff, /* dst_mask */
1299 FALSE), /* pcrel_offset */
1300
1301 /* Like DTPREL16, but no overflow. */
1302 HOWTO (R_PPC64_DTPREL16_LO,
1303 0, /* rightshift */
1304 1, /* size (0 = byte, 1 = short, 2 = long) */
1305 16, /* bitsize */
1306 FALSE, /* pc_relative */
1307 0, /* bitpos */
1308 complain_overflow_dont, /* complain_on_overflow */
1309 ppc64_elf_unhandled_reloc, /* special_function */
1310 "R_PPC64_DTPREL16_LO", /* name */
1311 FALSE, /* partial_inplace */
1312 0, /* src_mask */
1313 0xffff, /* dst_mask */
1314 FALSE), /* pcrel_offset */
1315
1316 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1317 HOWTO (R_PPC64_DTPREL16_HI,
1318 16, /* rightshift */
1319 1, /* size (0 = byte, 1 = short, 2 = long) */
1320 16, /* bitsize */
1321 FALSE, /* pc_relative */
1322 0, /* bitpos */
1323 complain_overflow_dont, /* complain_on_overflow */
1324 ppc64_elf_unhandled_reloc, /* special_function */
1325 "R_PPC64_DTPREL16_HI", /* name */
1326 FALSE, /* partial_inplace */
1327 0, /* src_mask */
1328 0xffff, /* dst_mask */
1329 FALSE), /* pcrel_offset */
1330
1331 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1332 HOWTO (R_PPC64_DTPREL16_HA,
1333 16, /* rightshift */
1334 1, /* size (0 = byte, 1 = short, 2 = long) */
1335 16, /* bitsize */
1336 FALSE, /* pc_relative */
1337 0, /* bitpos */
1338 complain_overflow_dont, /* complain_on_overflow */
1339 ppc64_elf_unhandled_reloc, /* special_function */
1340 "R_PPC64_DTPREL16_HA", /* name */
1341 FALSE, /* partial_inplace */
1342 0, /* src_mask */
1343 0xffff, /* dst_mask */
1344 FALSE), /* pcrel_offset */
1345
1346 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1347 HOWTO (R_PPC64_DTPREL16_HIGHER,
1348 32, /* rightshift */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1350 16, /* bitsize */
1351 FALSE, /* pc_relative */
1352 0, /* bitpos */
1353 complain_overflow_dont, /* complain_on_overflow */
1354 ppc64_elf_unhandled_reloc, /* special_function */
1355 "R_PPC64_DTPREL16_HIGHER", /* name */
1356 FALSE, /* partial_inplace */
1357 0, /* src_mask */
1358 0xffff, /* dst_mask */
1359 FALSE), /* pcrel_offset */
1360
1361 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1362 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1363 32, /* rightshift */
1364 1, /* size (0 = byte, 1 = short, 2 = long) */
1365 16, /* bitsize */
1366 FALSE, /* pc_relative */
1367 0, /* bitpos */
1368 complain_overflow_dont, /* complain_on_overflow */
1369 ppc64_elf_unhandled_reloc, /* special_function */
1370 "R_PPC64_DTPREL16_HIGHERA", /* name */
1371 FALSE, /* partial_inplace */
1372 0, /* src_mask */
1373 0xffff, /* dst_mask */
1374 FALSE), /* pcrel_offset */
1375
1376 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1377 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1378 48, /* rightshift */
1379 1, /* size (0 = byte, 1 = short, 2 = long) */
1380 16, /* bitsize */
1381 FALSE, /* pc_relative */
1382 0, /* bitpos */
1383 complain_overflow_dont, /* complain_on_overflow */
1384 ppc64_elf_unhandled_reloc, /* special_function */
1385 "R_PPC64_DTPREL16_HIGHEST", /* name */
1386 FALSE, /* partial_inplace */
1387 0, /* src_mask */
1388 0xffff, /* dst_mask */
1389 FALSE), /* pcrel_offset */
1390
1391 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1392 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1393 48, /* rightshift */
1394 1, /* size (0 = byte, 1 = short, 2 = long) */
1395 16, /* bitsize */
1396 FALSE, /* pc_relative */
1397 0, /* bitpos */
1398 complain_overflow_dont, /* complain_on_overflow */
1399 ppc64_elf_unhandled_reloc, /* special_function */
1400 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1401 FALSE, /* partial_inplace */
1402 0, /* src_mask */
1403 0xffff, /* dst_mask */
1404 FALSE), /* pcrel_offset */
1405
1406 /* Like DTPREL16, but for insns with a DS field. */
1407 HOWTO (R_PPC64_DTPREL16_DS,
1408 0, /* rightshift */
1409 1, /* size (0 = byte, 1 = short, 2 = long) */
1410 16, /* bitsize */
1411 FALSE, /* pc_relative */
1412 0, /* bitpos */
1413 complain_overflow_signed, /* complain_on_overflow */
1414 ppc64_elf_unhandled_reloc, /* special_function */
1415 "R_PPC64_DTPREL16_DS", /* name */
1416 FALSE, /* partial_inplace */
1417 0, /* src_mask */
1418 0xfffc, /* dst_mask */
1419 FALSE), /* pcrel_offset */
1420
1421 /* Like DTPREL16_DS, but no overflow. */
1422 HOWTO (R_PPC64_DTPREL16_LO_DS,
1423 0, /* rightshift */
1424 1, /* size (0 = byte, 1 = short, 2 = long) */
1425 16, /* bitsize */
1426 FALSE, /* pc_relative */
1427 0, /* bitpos */
1428 complain_overflow_dont, /* complain_on_overflow */
1429 ppc64_elf_unhandled_reloc, /* special_function */
1430 "R_PPC64_DTPREL16_LO_DS", /* name */
1431 FALSE, /* partial_inplace */
1432 0, /* src_mask */
1433 0xfffc, /* dst_mask */
1434 FALSE), /* pcrel_offset */
1435
1436 /* Computes a tp-relative displacement, the difference between the value of
1437 sym+add and the value of the thread pointer (r13). */
1438 HOWTO (R_PPC64_TPREL64,
1439 0, /* rightshift */
1440 4, /* size (0 = byte, 1 = short, 2 = long) */
1441 64, /* bitsize */
1442 FALSE, /* pc_relative */
1443 0, /* bitpos */
1444 complain_overflow_dont, /* complain_on_overflow */
1445 ppc64_elf_unhandled_reloc, /* special_function */
1446 "R_PPC64_TPREL64", /* name */
1447 FALSE, /* partial_inplace */
1448 0, /* src_mask */
1449 ONES (64), /* dst_mask */
1450 FALSE), /* pcrel_offset */
1451
1452 /* A 16 bit tprel reloc. */
1453 HOWTO (R_PPC64_TPREL16,
1454 0, /* rightshift */
1455 1, /* size (0 = byte, 1 = short, 2 = long) */
1456 16, /* bitsize */
1457 FALSE, /* pc_relative */
1458 0, /* bitpos */
1459 complain_overflow_signed, /* complain_on_overflow */
1460 ppc64_elf_unhandled_reloc, /* special_function */
1461 "R_PPC64_TPREL16", /* name */
1462 FALSE, /* partial_inplace */
1463 0, /* src_mask */
1464 0xffff, /* dst_mask */
1465 FALSE), /* pcrel_offset */
1466
1467 /* Like TPREL16, but no overflow. */
1468 HOWTO (R_PPC64_TPREL16_LO,
1469 0, /* rightshift */
1470 1, /* size (0 = byte, 1 = short, 2 = long) */
1471 16, /* bitsize */
1472 FALSE, /* pc_relative */
1473 0, /* bitpos */
1474 complain_overflow_dont, /* complain_on_overflow */
1475 ppc64_elf_unhandled_reloc, /* special_function */
1476 "R_PPC64_TPREL16_LO", /* name */
1477 FALSE, /* partial_inplace */
1478 0, /* src_mask */
1479 0xffff, /* dst_mask */
1480 FALSE), /* pcrel_offset */
1481
1482 /* Like TPREL16_LO, but next higher group of 16 bits. */
1483 HOWTO (R_PPC64_TPREL16_HI,
1484 16, /* rightshift */
1485 1, /* size (0 = byte, 1 = short, 2 = long) */
1486 16, /* bitsize */
1487 FALSE, /* pc_relative */
1488 0, /* bitpos */
1489 complain_overflow_dont, /* complain_on_overflow */
1490 ppc64_elf_unhandled_reloc, /* special_function */
1491 "R_PPC64_TPREL16_HI", /* name */
1492 FALSE, /* partial_inplace */
1493 0, /* src_mask */
1494 0xffff, /* dst_mask */
1495 FALSE), /* pcrel_offset */
1496
1497 /* Like TPREL16_HI, but adjust for low 16 bits. */
1498 HOWTO (R_PPC64_TPREL16_HA,
1499 16, /* rightshift */
1500 1, /* size (0 = byte, 1 = short, 2 = long) */
1501 16, /* bitsize */
1502 FALSE, /* pc_relative */
1503 0, /* bitpos */
1504 complain_overflow_dont, /* complain_on_overflow */
1505 ppc64_elf_unhandled_reloc, /* special_function */
1506 "R_PPC64_TPREL16_HA", /* name */
1507 FALSE, /* partial_inplace */
1508 0, /* src_mask */
1509 0xffff, /* dst_mask */
1510 FALSE), /* pcrel_offset */
1511
1512 /* Like TPREL16_HI, but next higher group of 16 bits. */
1513 HOWTO (R_PPC64_TPREL16_HIGHER,
1514 32, /* rightshift */
1515 1, /* size (0 = byte, 1 = short, 2 = long) */
1516 16, /* bitsize */
1517 FALSE, /* pc_relative */
1518 0, /* bitpos */
1519 complain_overflow_dont, /* complain_on_overflow */
1520 ppc64_elf_unhandled_reloc, /* special_function */
1521 "R_PPC64_TPREL16_HIGHER", /* name */
1522 FALSE, /* partial_inplace */
1523 0, /* src_mask */
1524 0xffff, /* dst_mask */
1525 FALSE), /* pcrel_offset */
1526
1527 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1528 HOWTO (R_PPC64_TPREL16_HIGHERA,
1529 32, /* rightshift */
1530 1, /* size (0 = byte, 1 = short, 2 = long) */
1531 16, /* bitsize */
1532 FALSE, /* pc_relative */
1533 0, /* bitpos */
1534 complain_overflow_dont, /* complain_on_overflow */
1535 ppc64_elf_unhandled_reloc, /* special_function */
1536 "R_PPC64_TPREL16_HIGHERA", /* name */
1537 FALSE, /* partial_inplace */
1538 0, /* src_mask */
1539 0xffff, /* dst_mask */
1540 FALSE), /* pcrel_offset */
1541
1542 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1543 HOWTO (R_PPC64_TPREL16_HIGHEST,
1544 48, /* rightshift */
1545 1, /* size (0 = byte, 1 = short, 2 = long) */
1546 16, /* bitsize */
1547 FALSE, /* pc_relative */
1548 0, /* bitpos */
1549 complain_overflow_dont, /* complain_on_overflow */
1550 ppc64_elf_unhandled_reloc, /* special_function */
1551 "R_PPC64_TPREL16_HIGHEST", /* name */
1552 FALSE, /* partial_inplace */
1553 0, /* src_mask */
1554 0xffff, /* dst_mask */
1555 FALSE), /* pcrel_offset */
1556
1557 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1558 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1559 48, /* rightshift */
1560 1, /* size (0 = byte, 1 = short, 2 = long) */
1561 16, /* bitsize */
1562 FALSE, /* pc_relative */
1563 0, /* bitpos */
1564 complain_overflow_dont, /* complain_on_overflow */
1565 ppc64_elf_unhandled_reloc, /* special_function */
1566 "R_PPC64_TPREL16_HIGHESTA", /* name */
1567 FALSE, /* partial_inplace */
1568 0, /* src_mask */
1569 0xffff, /* dst_mask */
1570 FALSE), /* pcrel_offset */
1571
1572 /* Like TPREL16, but for insns with a DS field. */
1573 HOWTO (R_PPC64_TPREL16_DS,
1574 0, /* rightshift */
1575 1, /* size (0 = byte, 1 = short, 2 = long) */
1576 16, /* bitsize */
1577 FALSE, /* pc_relative */
1578 0, /* bitpos */
1579 complain_overflow_signed, /* complain_on_overflow */
1580 ppc64_elf_unhandled_reloc, /* special_function */
1581 "R_PPC64_TPREL16_DS", /* name */
1582 FALSE, /* partial_inplace */
1583 0, /* src_mask */
1584 0xfffc, /* dst_mask */
1585 FALSE), /* pcrel_offset */
1586
1587 /* Like TPREL16_DS, but no overflow. */
1588 HOWTO (R_PPC64_TPREL16_LO_DS,
1589 0, /* rightshift */
1590 1, /* size (0 = byte, 1 = short, 2 = long) */
1591 16, /* bitsize */
1592 FALSE, /* pc_relative */
1593 0, /* bitpos */
1594 complain_overflow_dont, /* complain_on_overflow */
1595 ppc64_elf_unhandled_reloc, /* special_function */
1596 "R_PPC64_TPREL16_LO_DS", /* name */
1597 FALSE, /* partial_inplace */
1598 0, /* src_mask */
1599 0xfffc, /* dst_mask */
1600 FALSE), /* pcrel_offset */
1601
1602 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1603 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1604 to the first entry relative to the TOC base (r2). */
1605 HOWTO (R_PPC64_GOT_TLSGD16,
1606 0, /* rightshift */
1607 1, /* size (0 = byte, 1 = short, 2 = long) */
1608 16, /* bitsize */
1609 FALSE, /* pc_relative */
1610 0, /* bitpos */
1611 complain_overflow_signed, /* complain_on_overflow */
1612 ppc64_elf_unhandled_reloc, /* special_function */
1613 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1614 FALSE, /* partial_inplace */
5bd4f169
AM		 1615 0, /* src_mask */
1616 0xffff, /* dst_mask */
b34976b6 1617 FALSE), /* pcrel_offset */
5bd4f169 1618
411e1bfb
AM		 1619 /* Like GOT_TLSGD16, but no overflow. */
1620 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1621 0, /* rightshift */
1622 1, /* size (0 = byte, 1 = short, 2 = long) */
1623 16, /* bitsize */
b34976b6 1624 FALSE, /* pc_relative */
5bd4f169
AM		 1625 0, /* bitpos */
1626 complain_overflow_dont, /* complain_on_overflow */
805fc799 1627 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1628 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1629 FALSE, /* partial_inplace */
5bd4f169
AM		 1630 0, /* src_mask */
1631 0xffff, /* dst_mask */
b34976b6 1632 FALSE), /* pcrel_offset */
5bd4f169 1633
411e1bfb
AM		 1634 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1635 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1636 16, /* rightshift */
1637 1, /* size (0 = byte, 1 = short, 2 = long) */
1638 16, /* bitsize */
b34976b6 1639 FALSE, /* pc_relative */
5bd4f169
AM		 1640 0, /* bitpos */
1641 complain_overflow_dont, /* complain_on_overflow */
805fc799 1642 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1643 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1644 FALSE, /* partial_inplace */
5bd4f169
AM		 1645 0, /* src_mask */
1646 0xffff, /* dst_mask */
b34976b6 1647 FALSE), /* pcrel_offset */
5bd4f169 1648
411e1bfb
AM		 1649 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1650 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1651 16, /* rightshift */
1652 1, /* size (0 = byte, 1 = short, 2 = long) */
1653 16, /* bitsize */
b34976b6 1654 FALSE, /* pc_relative */
5bd4f169 1655 0, /* bitpos */
411e1bfb 1656 complain_overflow_dont, /* complain_on_overflow */
805fc799 1657 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1658 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1659 FALSE, /* partial_inplace */
5bd4f169
AM		 1660 0, /* src_mask */
1661 0xffff, /* dst_mask */
b34976b6 1662 FALSE), /* pcrel_offset */
5bd4f169 1663
411e1bfb
AM		 1664 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1665 with values (sym+add)@dtpmod and zero, and computes the offset to the
1666 first entry relative to the TOC base (r2). */
1667 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1668 0, /* rightshift */
1669 1, /* size (0 = byte, 1 = short, 2 = long) */
1670 16, /* bitsize */
b34976b6 1671 FALSE, /* pc_relative */
5bd4f169 1672 0, /* bitpos */
411e1bfb
AM		 1673 complain_overflow_signed, /* complain_on_overflow */
1674 ppc64_elf_unhandled_reloc, /* special_function */
1675 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1676 FALSE, /* partial_inplace */
d006db6c 1677 0, /* src_mask */
411e1bfb 1678 0xffff, /* dst_mask */
b34976b6 1679 FALSE), /* pcrel_offset */
5bd4f169 1680
411e1bfb
AM		 1681 /* Like GOT_TLSLD16, but no overflow. */
1682 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1683 0, /* rightshift */
1684 1, /* size (0 = byte, 1 = short, 2 = long) */
1685 16, /* bitsize */
b34976b6 1686 FALSE, /* pc_relative */
5bd4f169 1687 0, /* bitpos */
411e1bfb
AM		 1688 complain_overflow_dont, /* complain_on_overflow */
1689 ppc64_elf_unhandled_reloc, /* special_function */
1690 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1691 FALSE, /* partial_inplace */
d006db6c 1692 0, /* src_mask */
411e1bfb 1693 0xffff, /* dst_mask */
b34976b6 1694 FALSE), /* pcrel_offset */
5bd4f169 1695
411e1bfb
AM		 1696 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1697 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1698 16, /* rightshift */
5bd4f169
AM		 1699 1, /* size (0 = byte, 1 = short, 2 = long) */
1700 16, /* bitsize */
b34976b6 1701 FALSE, /* pc_relative */
5bd4f169 1702 0, /* bitpos */
411e1bfb 1703 complain_overflow_dont, /* complain_on_overflow */
805fc799 1704 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1705 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1706 FALSE, /* partial_inplace */
d006db6c 1707 0, /* src_mask */
411e1bfb 1708 0xffff, /* dst_mask */
b34976b6 1709 FALSE), /* pcrel_offset */
5bd4f169 1710
411e1bfb
AM		 1711 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1712 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1713 16, /* rightshift */
5bd4f169
AM		 1714 1, /* size (0 = byte, 1 = short, 2 = long) */
1715 16, /* bitsize */
b34976b6 1716 FALSE, /* pc_relative */
5bd4f169
AM		 1717 0, /* bitpos */
1718 complain_overflow_dont, /* complain_on_overflow */
805fc799 1719 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1720 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1721 FALSE, /* partial_inplace */
d006db6c 1722 0, /* src_mask */
411e1bfb 1723 0xffff, /* dst_mask */
b34976b6 1724 FALSE), /* pcrel_offset */
5bd4f169 1725
411e1bfb
AM		 1726 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1727 the offset to the entry relative to the TOC base (r2). */
1728 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1729 0, /* rightshift */
1730 1, /* size (0 = byte, 1 = short, 2 = long) */
1731 16, /* bitsize */
b34976b6 1732 FALSE, /* pc_relative */
5bd4f169 1733 0, /* bitpos */
411e1bfb 1734 complain_overflow_signed, /* complain_on_overflow */
805fc799 1735 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1736 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1737 FALSE, /* partial_inplace */
d006db6c 1738 0, /* src_mask */
5bd4f169 1739 0xfffc, /* dst_mask */
b34976b6 1740 FALSE), /* pcrel_offset */
5bd4f169 1741
411e1bfb
AM		 1742 /* Like GOT_DTPREL16_DS, but no overflow. */
1743 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1744 0, /* rightshift */
c061c2d8
AM		 1745 1, /* size (0 = byte, 1 = short, 2 = long) */
1746 16, /* bitsize */
b34976b6 1747 FALSE, /* pc_relative */
5bd4f169 1748 0, /* bitpos */
411e1bfb
AM		 1749 complain_overflow_dont, /* complain_on_overflow */
1750 ppc64_elf_unhandled_reloc, /* special_function */
1751 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1752 FALSE, /* partial_inplace */
d006db6c 1753 0, /* src_mask */
c061c2d8 1754 0xfffc, /* dst_mask */
b34976b6 1755 FALSE), /* pcrel_offset */
5bd4f169 1756
411e1bfb
AM		 1757 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1758 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1759 16, /* rightshift */
5bd4f169
AM		 1760 1, /* size (0 = byte, 1 = short, 2 = long) */
1761 16, /* bitsize */
b34976b6 1762 FALSE, /* pc_relative */
5bd4f169
AM		 1763 0, /* bitpos */
1764 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1765 ppc64_elf_unhandled_reloc, /* special_function */
1766 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1767 FALSE, /* partial_inplace */
d006db6c 1768 0, /* src_mask */
411e1bfb 1769 0xffff, /* dst_mask */
b34976b6 1770 FALSE), /* pcrel_offset */
5bd4f169 1771
411e1bfb
AM		 1772 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1773 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1774 16, /* rightshift */
1775 1, /* size (0 = byte, 1 = short, 2 = long) */
1776 16, /* bitsize */
1777 FALSE, /* pc_relative */
1778 0, /* bitpos */
1779 complain_overflow_dont, /* complain_on_overflow */
1780 ppc64_elf_unhandled_reloc, /* special_function */
1781 "R_PPC64_GOT_DTPREL16_HA", /* name */
1782 FALSE, /* partial_inplace */
1783 0, /* src_mask */
1784 0xffff, /* dst_mask */
1785 FALSE), /* pcrel_offset */
1786
1787 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1788 offset to the entry relative to the TOC base (r2). */
1789 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1790 0, /* rightshift */
1791 1, /* size (0 = byte, 1 = short, 2 = long) */
1792 16, /* bitsize */
b34976b6 1793 FALSE, /* pc_relative */
5bd4f169
AM		 1794 0, /* bitpos */
1795 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1796 ppc64_elf_unhandled_reloc, /* special_function */
1797 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1798 FALSE, /* partial_inplace */
d006db6c 1799 0, /* src_mask */
ad8e1ba5 1800 0xfffc, /* dst_mask */
b34976b6 1801 FALSE), /* pcrel_offset */
5bd4f169 1802
411e1bfb
AM		 1803 /* Like GOT_TPREL16_DS, but no overflow. */
1804 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1805 0, /* rightshift */
1806 1, /* size (0 = byte, 1 = short, 2 = long) */
1807 16, /* bitsize */
b34976b6 1808 FALSE, /* pc_relative */
5bd4f169
AM		 1809 0, /* bitpos */
1810 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1811 ppc64_elf_unhandled_reloc, /* special_function */
1812 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1813 FALSE, /* partial_inplace */
d006db6c 1814 0, /* src_mask */
ad8e1ba5 1815 0xfffc, /* dst_mask */
b34976b6 1816 FALSE), /* pcrel_offset */
5bd4f169 1817
411e1bfb
AM		 1818 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1819 HOWTO (R_PPC64_GOT_TPREL16_HI,
1820 16, /* rightshift */
5bd4f169
AM		 1821 1, /* size (0 = byte, 1 = short, 2 = long) */
1822 16, /* bitsize */
b34976b6 1823 FALSE, /* pc_relative */
5bd4f169 1824 0, /* bitpos */
411e1bfb 1825 complain_overflow_dont, /* complain_on_overflow */
805fc799 1826 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1827 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1828 FALSE, /* partial_inplace */
d006db6c 1829 0, /* src_mask */
411e1bfb 1830 0xffff, /* dst_mask */
b34976b6 1831 FALSE), /* pcrel_offset */
5bd4f169 1832
411e1bfb
AM		 1833 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1834 HOWTO (R_PPC64_GOT_TPREL16_HA,
1835 16, /* rightshift */
5bd4f169
AM		 1836 1, /* size (0 = byte, 1 = short, 2 = long) */
1837 16, /* bitsize */
b34976b6 1838 FALSE, /* pc_relative */
5bd4f169
AM		 1839 0, /* bitpos */
1840 complain_overflow_dont, /* complain_on_overflow */
805fc799 1841 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1842 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1843 FALSE, /* partial_inplace */
d006db6c 1844 0, /* src_mask */
411e1bfb 1845 0xffff, /* dst_mask */
b34976b6 1846 FALSE), /* pcrel_offset */
5bd4f169
AM		 1847
1848 /* GNU extension to record C++ vtable hierarchy. */
1849 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1850 0, /* rightshift */
1851 0, /* size (0 = byte, 1 = short, 2 = long) */
1852 0, /* bitsize */
b34976b6 1853 FALSE, /* pc_relative */
5bd4f169
AM		 1854 0, /* bitpos */
1855 complain_overflow_dont, /* complain_on_overflow */
1856 NULL, /* special_function */
1857 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1858 FALSE, /* partial_inplace */
5bd4f169
AM		 1859 0, /* src_mask */
1860 0, /* dst_mask */
b34976b6 1861 FALSE), /* pcrel_offset */
5bd4f169
AM		 1862
1863 /* GNU extension to record C++ vtable member usage. */
1864 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1865 0, /* rightshift */
1866 0, /* size (0 = byte, 1 = short, 2 = long) */
1867 0, /* bitsize */
b34976b6 1868 FALSE, /* pc_relative */
5bd4f169
AM		 1869 0, /* bitpos */
1870 complain_overflow_dont, /* complain_on_overflow */
1871 NULL, /* special_function */
1872 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1873 FALSE, /* partial_inplace */
5bd4f169
AM		 1874 0, /* src_mask */
1875 0, /* dst_mask */
b34976b6 1876 FALSE), /* pcrel_offset */
5bd4f169
AM		 1877};
1878
1879\f
1880/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1881 be done. */
1882
1883static void
4ce794b7 1884ppc_howto_init (void)
5bd4f169
AM		 1885{
1886 unsigned int i, type;
1887
1888 for (i = 0;
1889 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1890 i++)
1891 {
1892 type = ppc64_elf_howto_raw[i].type;
1893 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1894 / sizeof (ppc64_elf_howto_table[0])));
1895 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1896 }
1897}
1898
1899static reloc_howto_type *
4ce794b7
AM		 1900ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1901 bfd_reloc_code_real_type code)
5bd4f169 1902{
411e1bfb 1903 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 1904
1905 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1906 /* Initialize howto table if needed. */
1907 ppc_howto_init ();
1908
4ce794b7 1909 switch (code)
5bd4f169
AM		 1910 {
1911 default:
4ce794b7 1912 return NULL;
5bd4f169 1913
411e1bfb
AM		 1914 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1915 break;
1916 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1917 break;
1918 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1919 break;
1920 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1921 break;
1922 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1923 break;
1924 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1925 break;
1926 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1927 break;
411e1bfb 1928 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1929 break;
411e1bfb 1930 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1931 break;
411e1bfb 1932 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1933 break;
411e1bfb 1934 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1935 break;
411e1bfb 1936 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1937 break;
411e1bfb 1938 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1939 break;
411e1bfb 1940 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1941 break;
411e1bfb 1942 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1943 break;
411e1bfb 1944 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1945 break;
411e1bfb 1946 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1947 break;
411e1bfb 1948 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1949 break;
411e1bfb 1950 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1951 break;
411e1bfb 1952 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1953 break;
411e1bfb 1954 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1955 break;
411e1bfb 1956 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1957 break;
411e1bfb 1958 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1959 break;
411e1bfb 1960 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1961 break;
411e1bfb 1962 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1963 break;
411e1bfb 1964 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1965 break;
411e1bfb 1966 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1967 break;
411e1bfb 1968 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1969 break;
411e1bfb 1970 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1971 break;
411e1bfb 1972 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1973 break;
411e1bfb 1974 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1975 break;
411e1bfb 1976 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1977 break;
411e1bfb 1978 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1979 break;
411e1bfb 1980 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1981 break;
411e1bfb 1982 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1983 break;
411e1bfb 1984 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1985 break;
411e1bfb 1986 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1987 break;
411e1bfb 1988 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1989 break;
411e1bfb 1990 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1991 break;
411e1bfb 1992 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1993 break;
411e1bfb 1994 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1995 break;
411e1bfb 1996 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1997 break;
411e1bfb 1998 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1999 break;
411e1bfb 2000 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 2001 break;
411e1bfb 2002 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 2003 break;
411e1bfb 2004 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 2005 break;
411e1bfb 2006 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 2007 break;
411e1bfb 2008 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 2009 break;
411e1bfb 2010 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 2011 break;
411e1bfb 2012 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 2013 break;
411e1bfb 2014 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 2015 break;
411e1bfb 2016 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 2017 break;
411e1bfb 2018 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 2019 break;
411e1bfb 2020 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 2021 break;
411e1bfb 2022 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 2023 break;
411e1bfb 2024 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 2025 break;
411e1bfb 2026 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2027 break;
411e1bfb 2028 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2029 break;
411e1bfb 2030 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2031 break;
411e1bfb 2032 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2033 break;
411e1bfb 2034 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2035 break;
411e1bfb 2036 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2037 break;
411e1bfb 2038 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2039 break;
411e1bfb 2040 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2041 break;
411e1bfb 2042 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2043 break;
411e1bfb 2044 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2045 break;
411e1bfb
AM		 2046 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2047 break;
2048 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2049 break;
2050 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2051 break;
2052 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2053 break;
2054 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2055 break;
2056 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2057 break;
2058 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2059 break;
2060 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2061 break;
2062 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2063 break;
2064 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2065 break;
2066 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2067 break;
2068 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2069 break;
2070 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2071 break;
2072 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2073 break;
2074 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2075 break;
2076 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2077 break;
2078 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2079 break;
2080 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2081 break;
2082 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2083 break;
2084 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2085 break;
2086 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2087 break;
2088 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2089 break;
2090 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2091 break;
2092 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2093 break;
2094 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2095 break;
2096 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2097 break;
2098 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2099 break;
2100 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2101 break;
2102 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2103 break;
2104 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2105 break;
2106 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2107 break;
2108 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2109 break;
2110 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2111 break;
2112 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2113 break;
2114 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2115 break;
2116 }
2117
4ce794b7 2118 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2119};
2120
157090f7
AM		 2121static reloc_howto_type *
2122ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2123 const char *r_name)
2124{
2125 unsigned int i;
2126
2127 for (i = 0;
2128 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2129 i++)
2130 if (ppc64_elf_howto_raw[i].name != NULL
2131 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2132 return &ppc64_elf_howto_raw[i];
2133
2134 return NULL;
2135}
2136
5bd4f169
AM		 2137/* Set the howto pointer for a PowerPC ELF reloc. */
2138
2139static void
4ce794b7
AM		 2140ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2141 Elf_Internal_Rela *dst)
5bd4f169 2142{
65f38f15
AM		 2143 unsigned int type;
2144
ef60b7ff 2145 /* Initialize howto table if needed. */
5bd4f169 2146 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2147 ppc_howto_init ();
2148
65f38f15 2149 type = ELF64_R_TYPE (dst->r_info);
d0fb9a8d
JJ		 2150 if (type >= (sizeof (ppc64_elf_howto_table)
2151 / sizeof (ppc64_elf_howto_table[0])))
2152 {
2153 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
3ec2b351
NC		 2154 abfd, (int) type);
2155 type = R_PPC64_NONE;
d0fb9a8d 2156 }
65f38f15 2157 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2158}
2159
04c9666a 2160/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2161
2162static bfd_reloc_status_type
4ce794b7
AM		 2163ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2164 void *data, asection *input_section,
2165 bfd *output_bfd, char **error_message)
5bd4f169 2166{
805fc799
AM		 2167 /* If this is a relocatable link (output_bfd test tells us), just
2168 call the generic function. Any adjustment will be done at final
2169 link time. */
2170 if (output_bfd != NULL)
cedb70c5 2171 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2172 input_section, output_bfd, error_message);
2173
2174 /* Adjust the addend for sign extension of the low 16 bits.
2175 We won't actually be using the low 16 bits, so trashing them
2176 doesn't matter. */
2177 reloc_entry->addend += 0x8000;
2178 return bfd_reloc_continue;
2179}
5bd4f169 2180
2441e016
AM		 2181static bfd_reloc_status_type
2182ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2183 void *data, asection *input_section,
2184 bfd *output_bfd, char **error_message)
2185{
2186 if (output_bfd != NULL)
2187 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2188 input_section, output_bfd, error_message);
2189
699733f6
AM		 2190 if (strcmp (symbol->section->name, ".opd") == 0
2191 && (symbol->section->owner->flags & DYNAMIC) == 0)
2441e016
AM		 2192 {
2193 bfd_vma dest = opd_entry_value (symbol->section,
2194 symbol->value + reloc_entry->addend,
2195 NULL, NULL);
2196 if (dest != (bfd_vma) -1)
2197 reloc_entry->addend = dest - (symbol->value
2198 + symbol->section->output_section->vma
2199 + symbol->section->output_offset);
2200 }
2201 return bfd_reloc_continue;
2202}
2203
805fc799 2204static bfd_reloc_status_type
4ce794b7
AM		 2205ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2206 void *data, asection *input_section,
2207 bfd *output_bfd, char **error_message)
805fc799
AM		 2208{
2209 long insn;
04c9666a 2210 enum elf_ppc64_reloc_type r_type;
805fc799
AM		 2211 bfd_size_type octets;
2212 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2213 bfd_boolean is_power4 = FALSE;
805fc799
AM		 2214
2215 /* If this is a relocatable link (output_bfd test tells us), just
2216 call the generic function. Any adjustment will be done at final
2217 link time. */
5bd4f169 2218 if (output_bfd != NULL)
cedb70c5 2219 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2220 input_section, output_bfd, error_message);
2221
2222 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2223 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2224 insn &= ~(0x01 << 21);
4ce794b7 2225 r_type = reloc_entry->howto->type;
805fc799
AM		 2226 if (r_type == R_PPC64_ADDR14_BRTAKEN
2227 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2228 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM		 2229
2230 if (is_power4)
5bd4f169 2231 {
805fc799
AM		 2232 /* Set 'a' bit. This is 0b00010 in BO field for branch
2233 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2234 for branch on CTR insns (BO == 1a00t or 1a01t). */
2235 if ((insn & (0x14 << 21)) == (0x04 << 21))
2236 insn |= 0x02 << 21;
2237 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2238 insn |= 0x08 << 21;
2239 else
2441e016 2240 goto out;
5bd4f169 2241 }
805fc799
AM		 2242 else
2243 {
2244 bfd_vma target = 0;
2245 bfd_vma from;
5bd4f169 2246
805fc799
AM		 2247 if (!bfd_is_com_section (symbol->section))
2248 target = symbol->value;
2249 target += symbol->section->output_section->vma;
2250 target += symbol->section->output_offset;
2251 target += reloc_entry->addend;
5bd4f169 2252
805fc799
AM		 2253 from = (reloc_entry->address
2254 + input_section->output_offset
2255 + input_section->output_section->vma);
5bd4f169 2256
805fc799
AM		 2257 /* Invert 'y' bit if not the default. */
2258 if ((bfd_signed_vma) (target - from) < 0)
2259 insn ^= 0x01 << 21;
2260 }
4ce794b7 2261 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2441e016
AM		 2262 out:
2263 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2264 input_section, output_bfd, error_message);
805fc799 2265}
5bd4f169 2266
805fc799 2267static bfd_reloc_status_type
4ce794b7
AM		 2268ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2269 void *data, asection *input_section,
2270 bfd *output_bfd, char **error_message)
805fc799
AM		 2271{
2272 /* If this is a relocatable link (output_bfd test tells us), just
2273 call the generic function. Any adjustment will be done at final
2274 link time. */
2275 if (output_bfd != NULL)
cedb70c5 2276 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2277 input_section, output_bfd, error_message);
5bd4f169 2278
805fc799
AM		 2279 /* Subtract the symbol section base address. */
2280 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2281 return bfd_reloc_continue;
2282}
2283
805fc799 2284static bfd_reloc_status_type
4ce794b7
AM		 2285ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2286 void *data, asection *input_section,
2287 bfd *output_bfd, char **error_message)
805fc799
AM		 2288{
2289 /* If this is a relocatable link (output_bfd test tells us), just
2290 call the generic function. Any adjustment will be done at final
2291 link time. */
2292 if (output_bfd != NULL)
cedb70c5 2293 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2294 input_section, output_bfd, error_message);
2295
2296 /* Subtract the symbol section base address. */
2297 reloc_entry->addend -= symbol->section->output_section->vma;
2298
2299 /* Adjust the addend for sign extension of the low 16 bits. */
2300 reloc_entry->addend += 0x8000;
2301 return bfd_reloc_continue;
2302}
2303
2304static bfd_reloc_status_type
4ce794b7
AM		 2305ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2306 void *data, asection *input_section,
2307 bfd *output_bfd, char **error_message)
805fc799
AM		 2308{
2309 bfd_vma TOCstart;
2310
2311 /* If this is a relocatable link (output_bfd test tells us), just
2312 call the generic function. Any adjustment will be done at final
2313 link time. */
2314 if (output_bfd != NULL)
cedb70c5 2315 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2316 input_section, output_bfd, error_message);
2317
2318 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2319 if (TOCstart == 0)
2320 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2321
2322 /* Subtract the TOC base address. */
2323 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2324 return bfd_reloc_continue;
2325}
2326
2327static bfd_reloc_status_type
4ce794b7
AM		 2328ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2329 void *data, asection *input_section,
2330 bfd *output_bfd, char **error_message)
805fc799
AM		 2331{
2332 bfd_vma TOCstart;
2333
2334 /* If this is a relocatable link (output_bfd test tells us), just
2335 call the generic function. Any adjustment will be done at final
2336 link time. */
2337 if (output_bfd != NULL)
cedb70c5 2338 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2339 input_section, output_bfd, error_message);
2340
2341 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2342 if (TOCstart == 0)
2343 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2344
2345 /* Subtract the TOC base address. */
2346 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2347
2348 /* Adjust the addend for sign extension of the low 16 bits. */
2349 reloc_entry->addend += 0x8000;
2350 return bfd_reloc_continue;
2351}
2352
2353static bfd_reloc_status_type
4ce794b7
AM		 2354ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2355 void *data, asection *input_section,
2356 bfd *output_bfd, char **error_message)
805fc799
AM		 2357{
2358 bfd_vma TOCstart;
2359 bfd_size_type octets;
2360
2361 /* If this is a relocatable link (output_bfd test tells us), just
2362 call the generic function. Any adjustment will be done at final
2363 link time. */
2364 if (output_bfd != NULL)
cedb70c5 2365 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2366 input_section, output_bfd, error_message);
2367
2368 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2369 if (TOCstart == 0)
2370 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2371
2372 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2373 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2374 return bfd_reloc_ok;
2375}
2376
2377static bfd_reloc_status_type
4ce794b7
AM		 2378ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2379 void *data, asection *input_section,
2380 bfd *output_bfd, char **error_message)
805fc799
AM		 2381{
2382 /* If this is a relocatable link (output_bfd test tells us), just
2383 call the generic function. Any adjustment will be done at final
2384 link time. */
2385 if (output_bfd != NULL)
cedb70c5 2386 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2387 input_section, output_bfd, error_message);
2388
2389 if (error_message != NULL)
2390 {
2391 static char buf[60];
2392 sprintf (buf, "generic linker can't handle %s",
2393 reloc_entry->howto->name);
2394 *error_message = buf;
2395 }
2396 return bfd_reloc_dangerous;
2397}
2398
e717da7e
AM		 2399struct ppc64_elf_obj_tdata
2400{
2401 struct elf_obj_tdata elf;
2402
2403 /* Shortcuts to dynamic linker sections. */
2404 asection *got;
2405 asection *relgot;
2406
b3fac117
AM		 2407 /* Used during garbage collection. We attach global symbols defined
2408 on removed .opd entries to this section so that the sym is removed. */
2409 asection *deleted_section;
81688140 2410
e717da7e
AM		 2411 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2412 sections means we potentially need one of these for each input bfd. */
2413 union {
2414 bfd_signed_vma refcount;
2415 bfd_vma offset;
2416 } tlsld_got;
8860955f
AM		 2417
2418 /* A copy of relocs before they are modified for --emit-relocs. */
2419 Elf_Internal_Rela *opd_relocs;
e717da7e
AM		 2420};
2421
2422#define ppc64_elf_tdata(bfd) \
2423 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2424
2425#define ppc64_tlsld_got(bfd) \
2426 (&ppc64_elf_tdata (bfd)->tlsld_got)
2427
0c8d6e5c
AM		 2428#define is_ppc64_elf(bfd) \
2429 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2430 && elf_object_id (bfd) == PPC64_ELF_TDATA)
2431
e717da7e
AM		 2432/* Override the generic function because we store some extras. */
2433
2434static bfd_boolean
2435ppc64_elf_mkobject (bfd *abfd)
2436{
0ffa91dd
NC		 2437 return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata),
2438 PPC64_ELF_TDATA);
e717da7e
AM		 2439}
2440
feee612b
AM		 2441/* Fix bad default arch selected for a 64 bit input bfd when the
2442 default is 32 bit. */
2443
b34976b6 2444static bfd_boolean
4ce794b7 2445ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2446{
2447 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2448 {
2449 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2450
2451 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2452 {
2453 /* Relies on arch after 32 bit default being 64 bit default. */
2454 abfd->arch_info = abfd->arch_info->next;
2455 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2456 }
2457 }
b34976b6 2458 return TRUE;
feee612b
AM		 2459}
2460
d37c89e5
AM		 2461/* Support for core dump NOTE sections. */
2462
2463static bfd_boolean
2464ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2465{
eea6121a 2466 size_t offset, size;
d37c89e5
AM		 2467
2468 if (note->descsz != 504)
2469 return FALSE;
2470
2471 /* pr_cursig */
2472 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2473
2474 /* pr_pid */
2475 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2476
2477 /* pr_reg */
2478 offset = 112;
eea6121a 2479 size = 384;
d37c89e5
AM		 2480
2481 /* Make a ".reg/999" section. */
2482 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2483 size, note->descpos + offset);
d37c89e5
AM		 2484}
2485
2486static bfd_boolean
2487ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2488{
2489 if (note->descsz != 136)
2490 return FALSE;
2491
2492 elf_tdata (abfd)->core_program
2493 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2494 elf_tdata (abfd)->core_command
2495 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2496
2497 return TRUE;
2498}
2499
183e98be
AM		 2500static char *
2501ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2502 ...)
2503{
2504 switch (note_type)
2505 {
2506 default:
2507 return NULL;
2508
2509 case NT_PRPSINFO:
2510 {
2511 char data[136];
2512 va_list ap;
2513
2514 va_start (ap, note_type);
2515 memset (data, 0, 40);
2516 strncpy (data + 40, va_arg (ap, const char *), 16);
2517 strncpy (data + 56, va_arg (ap, const char *), 80);
2518 va_end (ap);
2519 return elfcore_write_note (abfd, buf, bufsiz,
2520 "CORE", note_type, data, sizeof (data));
2521 }
2522
2523 case NT_PRSTATUS:
2524 {
2525 char data[504];
2526 va_list ap;
2527 long pid;
2528 int cursig;
2529 const void *greg;
2530
2531 va_start (ap, note_type);
2532 memset (data, 0, 112);
2533 pid = va_arg (ap, long);
2534 bfd_put_32 (abfd, pid, data + 32);
2535 cursig = va_arg (ap, int);
2536 bfd_put_16 (abfd, cursig, data + 12);
2537 greg = va_arg (ap, const void *);
2538 memcpy (data + 112, greg, 384);
2539 memset (data + 496, 0, 8);
2540 va_end (ap);
2541 return elfcore_write_note (abfd, buf, bufsiz,
2542 "CORE", note_type, data, sizeof (data));
2543 }
2544 }
2545}
2546
5bd4f169
AM		 2547/* Merge backend specific data from an object file to the output
2548 object file when linking. */
2f6d9989 2549
b34976b6 2550static bfd_boolean
4ce794b7 2551ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2552{
5bd4f169
AM		 2553 /* Check if we have the same endianess. */
2554 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2555 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM		 2556 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2557 {
2558 const char *msg;
2559
2560 if (bfd_big_endian (ibfd))
d003868e 2561 msg = _("%B: compiled for a big endian system "
4ce794b7 2562 "and target is little endian");
5bd4f169 2563 else
d003868e 2564 msg = _("%B: compiled for a little endian system "
4ce794b7 2565 "and target is big endian");
5bd4f169 2566
d003868e 2567 (*_bfd_error_handler) (msg, ibfd);
5bd4f169
AM		 2568
2569 bfd_set_error (bfd_error_wrong_format);
b34976b6 2570 return FALSE;
5bd4f169
AM		 2571 }
2572
b34976b6 2573 return TRUE;
5bd4f169 2574}
f0abc2a1 2575
5d35169e
AM		 2576/* Add extra PPC sections. */
2577
b35d266b 2578static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
7f4d3958 2579{
0112cd26
NC		 2580 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
2581 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2582 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2583 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2584 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2585 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2586 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 2587};
2588
7c8fe5c4
AM		 2589enum _ppc64_sec_type {
2590 sec_normal = 0,
2591 sec_opd = 1,
2592 sec_toc = 2
2593};
2594
f0abc2a1
AM		 2595struct _ppc64_elf_section_data
2596{
2597 struct bfd_elf_section_data elf;
411e1bfb 2598
f0abc2a1
AM		 2599 union
2600 {
74f0fb50
AM		 2601 /* An array with one entry for each opd function descriptor. */
2602 struct _opd_sec_data
2603 {
2604 /* Points to the function code section for local opd entries. */
2605 asection **func_sec;
2606
2607 /* After editing .opd, adjust references to opd local syms. */
2608 long *adjust;
2609 } opd;
7c8fe5c4
AM		 2610
2611 /* An array for toc sections, indexed by offset/8.
2612 Specifies the relocation symbol index used at a given toc offset. */
2613 unsigned *t_symndx;
2614 } u;
2615
2616 enum _ppc64_sec_type sec_type:2;
411e1bfb 2617
7c8fe5c4
AM		 2618 /* Flag set when small branches are detected. Used to
2619 select suitable defaults for the stub group size. */
2620 unsigned int has_14bit_branch:1;
f0abc2a1
AM		 2621};
2622
2623#define ppc64_elf_section_data(sec) \
411e1bfb 2624 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2625
2626static bfd_boolean
4ce794b7 2627ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1 2628{
f592407e
AM		 2629 if (!sec->used_by_bfd)
2630 {
2631 struct _ppc64_elf_section_data *sdata;
2632 bfd_size_type amt = sizeof (*sdata);
f0abc2a1 2633
f592407e
AM		 2634 sdata = bfd_zalloc (abfd, amt);
2635 if (sdata == NULL)
2636 return FALSE;
2637 sec->used_by_bfd = sdata;
2638 }
f0abc2a1
AM		 2639
2640 return _bfd_elf_new_section_hook (abfd, sec);
2641}
4025353c 2642
74f0fb50 2643static struct _opd_sec_data *
4025353c
AM		 2644get_opd_info (asection * sec)
2645{
2646 if (sec != NULL
2647 && ppc64_elf_section_data (sec) != NULL
7c8fe5c4 2648 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
74f0fb50 2649 return &ppc64_elf_section_data (sec)->u.opd;
4025353c
AM		 2650 return NULL;
2651}
90e3cdf2
JJ		 2652\f
2653/* Parameters for the qsort hook. */
2654static asection *synthetic_opd;
2655static bfd_boolean synthetic_relocatable;
2656
699733f6 2657/* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
90e3cdf2
JJ		 2658
2659static int
2660compare_symbols (const void *ap, const void *bp)
2661{
2662 const asymbol *a = * (const asymbol **) ap;
2663 const asymbol *b = * (const asymbol **) bp;
2664
699733f6
AM		 2665 /* Section symbols first. */
2666 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
90e3cdf2 2667 return -1;
699733f6 2668 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
90e3cdf2
JJ		 2669 return 1;
2670
699733f6 2671 /* then .opd symbols. */
90e3cdf2
JJ		 2672 if (a->section == synthetic_opd && b->section != synthetic_opd)
2673 return -1;
2674 if (a->section != synthetic_opd && b->section == synthetic_opd)
2675 return 1;
2676
699733f6 2677 /* then other code symbols. */
90e3cdf2
JJ		 2678 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2679 == (SEC_CODE | SEC_ALLOC)
2680 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2681 != (SEC_CODE | SEC_ALLOC))
2682 return -1;
2683
2684 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2685 != (SEC_CODE | SEC_ALLOC)
2686 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2687 == (SEC_CODE | SEC_ALLOC))
2688 return 1;
2689
2690 if (synthetic_relocatable)
2691 {
2692 if (a->section->id < b->section->id)
2693 return -1;
2694
2695 if (a->section->id > b->section->id)
2696 return 1;
2697 }
2698
2699 if (a->value + a->section->vma < b->value + b->section->vma)
2700 return -1;
2701
2702 if (a->value + a->section->vma > b->value + b->section->vma)
2703 return 1;
2704
4d35a0aa
AM		 2705 /* For syms with the same value, prefer strong dynamic global function
2706 syms over other syms. */
2707 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
2708 return -1;
2709
2710 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
2711 return 1;
2712
2713 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
2714 return -1;
2715
2716 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
2717 return 1;
2718
2719 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
2720 return -1;
2721
2722 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
2723 return 1;
2724
2725 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
2726 return -1;
2727
2728 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
2729 return 1;
2730
90e3cdf2
JJ		 2731 return 0;
2732}
2733
699733f6 2734/* Search SYMS for a symbol of the given VALUE. */
90e3cdf2 2735
699733f6
AM		 2736static asymbol *
2737sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
90e3cdf2 2738{
699733f6 2739 long mid;
90e3cdf2 2740
699733f6
AM		 2741 if (id == -1)
2742 {
2743 while (lo < hi)
2744 {
2745 mid = (lo + hi) >> 1;
2746 if (syms[mid]->value + syms[mid]->section->vma < value)
2747 lo = mid + 1;
2748 else if (syms[mid]->value + syms[mid]->section->vma > value)
2749 hi = mid;
2750 else
2751 return syms[mid];
2752 }
2753 }
2754 else
2755 {
2756 while (lo < hi)
2757 {
2758 mid = (lo + hi) >> 1;
2759 if (syms[mid]->section->id < id)
2760 lo = mid + 1;
2761 else if (syms[mid]->section->id > id)
2762 hi = mid;
2763 else if (syms[mid]->value < value)
2764 lo = mid + 1;
2765 else if (syms[mid]->value > value)
2766 hi = mid;
2767 else
2768 return syms[mid];
2769 }
2770 }
2771 return NULL;
90e3cdf2
JJ		 2772}
2773
699733f6
AM		 2774/* Create synthetic symbols, effectively restoring "dot-symbol" function
2775 entry syms. */
90e3cdf2
JJ		 2776
2777static long
a7535cf3
AM		 2778ppc64_elf_get_synthetic_symtab (bfd *abfd,
2779 long static_count, asymbol **static_syms,
2780 long dyn_count, asymbol **dyn_syms,
c9727e01 2781 asymbol **ret)
90e3cdf2
JJ		 2782{
2783 asymbol *s;
699733f6
AM		 2784 long i;
2785 long count;
90e3cdf2 2786 char *names;
a7535cf3 2787 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
699733f6 2788 asection *opd;
90e3cdf2 2789 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
a7535cf3 2790 asymbol **syms;
90e3cdf2
JJ		 2791
2792 *ret = NULL;
2793
2794 opd = bfd_get_section_by_name (abfd, ".opd");
2795 if (opd == NULL)
2796 return 0;
2797
a7535cf3 2798 symcount = static_count;
c9727e01 2799 if (!relocatable)
a7535cf3 2800 symcount += dyn_count;
90e3cdf2 2801 if (symcount == 0)
c9727e01 2802 return 0;
90e3cdf2 2803
a7535cf3
AM		 2804 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
2805 if (syms == NULL)
7356fed5 2806 return -1;
a7535cf3
AM		 2807
2808 if (!relocatable && static_count != 0 && dyn_count != 0)
2809 {
2810 /* Use both symbol tables. */
2811 memcpy (syms, static_syms, static_count * sizeof (*syms));
2812 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
2813 }
2814 else if (!relocatable && static_count == 0)
2815 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
2816 else
2817 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
2818
90e3cdf2
JJ		 2819 synthetic_opd = opd;
2820 synthetic_relocatable = relocatable;
595da8c5 2821 qsort (syms, symcount, sizeof (*syms), compare_symbols);
90e3cdf2 2822
c9727e01
AM		 2823 if (!relocatable && symcount > 1)
2824 {
2825 long j;
2826 /* Trim duplicate syms, since we may have merged the normal and
2827 dynamic symbols. Actually, we only care about syms that have
3b36f7e6 2828 different values, so trim any with the same value. */
c9727e01
AM		 2829 for (i = 1, j = 1; i < symcount; ++i)
2830 if (syms[i - 1]->value + syms[i - 1]->section->vma
2831 != syms[i]->value + syms[i]->section->vma)
2832 syms[j++] = syms[i];
2833 symcount = j;
2834 }
2835
699733f6
AM		 2836 i = 0;
2837 if (syms[i]->section == opd)
2838 ++i;
2839 codesecsym = i;
90e3cdf2 2840
699733f6
AM		 2841 for (; i < symcount; ++i)
2842 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2843 != (SEC_CODE | SEC_ALLOC))
2844 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
2845 break;
2846 codesecsymend = i;
90e3cdf2 2847
699733f6
AM		 2848 for (; i < symcount; ++i)
2849 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
2850 break;
2851 secsymend = i;
90e3cdf2 2852
699733f6
AM		 2853 for (; i < symcount; ++i)
2854 if (syms[i]->section != opd)
2855 break;
2856 opdsymend = i;
90e3cdf2 2857
699733f6
AM		 2858 for (; i < symcount; ++i)
2859 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2860 != (SEC_CODE | SEC_ALLOC))
2861 break;
2862 symcount = i;
2863
c9727e01 2864 count = 0;
699733f6 2865 if (opdsymend == secsymend)
c9727e01 2866 goto done;
90e3cdf2 2867
699733f6 2868 if (relocatable)
90e3cdf2 2869 {
699733f6
AM		 2870 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2871 arelent *r;
2872 size_t size;
2873 long relcount;
90e3cdf2 2874
699733f6 2875 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
90e3cdf2 2876 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
7356fed5 2877 if (relcount == 0)
c9727e01 2878 goto done;
90e3cdf2 2879
7356fed5
AM		 2880 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
2881 {
2882 count = -1;
2883 goto done;
2884 }
2885
699733f6 2886 size = 0;
595da8c5 2887 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
699733f6
AM		 2888 {
2889 asymbol *sym;
90e3cdf2 2890
595da8c5 2891 while (r < opd->relocation + relcount
699733f6
AM		 2892 && r->address < syms[i]->value + opd->vma)
2893 ++r;
90e3cdf2 2894
595da8c5 2895 if (r == opd->relocation + relcount)
699733f6 2896 break;
90e3cdf2 2897
699733f6
AM		 2898 if (r->address != syms[i]->value + opd->vma)
2899 continue;
90e3cdf2 2900
699733f6
AM		 2901 if (r->howto->type != R_PPC64_ADDR64)
2902 continue;
90e3cdf2 2903
699733f6
AM		 2904 sym = *r->sym_ptr_ptr;
2905 if (!sym_exists_at (syms, opdsymend, symcount,
2906 sym->section->id, sym->value + r->addend))
2907 {
2908 ++count;
2909 size += sizeof (asymbol);
2910 size += strlen (syms[i]->name) + 2;
2911 }
2912 }
90e3cdf2 2913
699733f6
AM		 2914 s = *ret = bfd_malloc (size);
2915 if (s == NULL)
2916 {
7356fed5 2917 count = -1;
c9727e01 2918 goto done;
699733f6 2919 }
90e3cdf2 2920
699733f6 2921 names = (char *) (s + count);
90e3cdf2 2922
595da8c5 2923 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
90e3cdf2 2924 {
699733f6 2925 asymbol *sym;
90e3cdf2 2926
595da8c5 2927 while (r < opd->relocation + relcount
699733f6
AM		 2928 && r->address < syms[i]->value + opd->vma)
2929 ++r;
90e3cdf2 2930
595da8c5 2931 if (r == opd->relocation + relcount)
699733f6
AM		 2932 break;
2933
2934 if (r->address != syms[i]->value + opd->vma)
2935 continue;
2936
2937 if (r->howto->type != R_PPC64_ADDR64)
2938 continue;
90e3cdf2 2939
699733f6
AM		 2940 sym = *r->sym_ptr_ptr;
2941 if (!sym_exists_at (syms, opdsymend, symcount,
2942 sym->section->id, sym->value + r->addend))
2943 {
2944 size_t len;
2945
2946 *s = *syms[i];
2947 s->section = sym->section;
2948 s->value = sym->value + r->addend;
2949 s->name = names;
2950 *names++ = '.';
2951 len = strlen (syms[i]->name);
2952 memcpy (names, syms[i]->name, len + 1);
2953 names += len + 1;
6f610d07
UW		 2954 /* Have udata.p point back to the original symbol this
2955 synthetic symbol was derived from. */
2956 s->udata.p = syms[i];
699733f6
AM		 2957 s++;
2958 }
2959 }
2960 }
2961 else
90e3cdf2 2962 {
699733f6
AM		 2963 bfd_byte *contents;
2964 size_t size;
90e3cdf2 2965
699733f6
AM		 2966 if (!bfd_malloc_and_get_section (abfd, opd, &contents))
2967 {
2968 if (contents)
c9727e01
AM		 2969 {
2970 free_contents_and_exit:
2971 free (contents);
2972 }
7356fed5 2973 count = -1;
c9727e01 2974 goto done;
699733f6 2975 }
90e3cdf2 2976
699733f6
AM		 2977 size = 0;
2978 for (i = secsymend; i < opdsymend; ++i)
2979 {
2980 bfd_vma ent;
90e3cdf2 2981
699733f6
AM		 2982 ent = bfd_get_64 (abfd, contents + syms[i]->value);
2983 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
2984 {
2985 ++count;
2986 size += sizeof (asymbol);
2987 size += strlen (syms[i]->name) + 2;
2988 }
2989 }
90e3cdf2 2990
699733f6
AM		 2991 s = *ret = bfd_malloc (size);
2992 if (s == NULL)
7356fed5 2993 goto free_contents_and_exit;
90e3cdf2 2994
699733f6 2995 names = (char *) (s + count);
90e3cdf2 2996
699733f6 2997 for (i = secsymend; i < opdsymend; ++i)
90e3cdf2 2998 {
699733f6 2999 bfd_vma ent;
90e3cdf2 3000
699733f6
AM		 3001 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3002 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
90e3cdf2 3003 {
c9727e01 3004 long lo, hi;
699733f6 3005 size_t len;
c9727e01 3006 asection *sec = abfd->sections;
90e3cdf2 3007
699733f6
AM		 3008 *s = *syms[i];
3009 lo = codesecsym;
3010 hi = codesecsymend;
3011 while (lo < hi)
3012 {
c9727e01 3013 long mid = (lo + hi) >> 1;
699733f6
AM		 3014 if (syms[mid]->section->vma < ent)
3015 lo = mid + 1;
3016 else if (syms[mid]->section->vma > ent)
3017 hi = mid;
3018 else
c9727e01
AM		 3019 {
3020 sec = syms[mid]->section;
3021 break;
3022 }
699733f6
AM		 3023 }
3024
c9727e01 3025 if (lo >= hi && lo > codesecsym)
699733f6 3026 sec = syms[lo - 1]->section;
699733f6
AM		 3027
3028 for (; sec != NULL; sec = sec->next)
3029 {
3030 if (sec->vma > ent)
3031 break;
3032 if ((sec->flags & SEC_ALLOC) == 0
3033 || (sec->flags & SEC_LOAD) == 0)
3034 break;
3035 if ((sec->flags & SEC_CODE) != 0)
3036 s->section = sec;
3037 }
3038 s->value = ent - s->section->vma;
3039 s->name = names;
3040 *names++ = '.';
3041 len = strlen (syms[i]->name);
3042 memcpy (names, syms[i]->name, len + 1);
3043 names += len + 1;
6f610d07
UW		 3044 /* Have udata.p point back to the original symbol this
3045 synthetic symbol was derived from. */
3046 s->udata.p = syms[i];
699733f6 3047 s++;
90e3cdf2 3048 }
90e3cdf2 3049 }
699733f6 3050 free (contents);
90e3cdf2
JJ		 3051 }
3052
c9727e01 3053 done:
a7535cf3 3054 free (syms);
90e3cdf2
JJ		 3055 return count;
3056}
5bd4f169 3057\f
65f38f15
AM		 3058/* The following functions are specific to the ELF linker, while
3059 functions above are used generally. Those named ppc64_elf_* are
3060 called by the main ELF linker code. They appear in this file more
3061 or less in the order in which they are called. eg.
3062 ppc64_elf_check_relocs is called early in the link process,
3063 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 3064 called.
3065
3066 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3067 functions have both a function code symbol and a function descriptor
3068 symbol. A call to foo in a relocatable object file looks like:
3069
3070 . .text
3071 . x:
3072 . bl .foo
3073 . nop
3074
3075 The function definition in another object file might be:
3076
3077 . .section .opd
3078 . foo: .quad .foo
3079 . .quad .TOC.@tocbase
3080 . .quad 0
3081 .
3082 . .text
3083 . .foo: blr
3084
3085 When the linker resolves the call during a static link, the branch
3086 unsurprisingly just goes to .foo and the .opd information is unused.
3087 If the function definition is in a shared library, things are a little
3088 different: The call goes via a plt call stub, the opd information gets
3089 copied to the plt, and the linker patches the nop.
3090
3091 . x:
3092 . bl .foo_stub
3093 . ld 2,40(1)
3094 .
3095 .
3096 . .foo_stub:
3097 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 3098 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM		 3099 . std 2,40(1) # this is the general idea
3100 . ld 11,0(12)
3101 . ld 2,8(12)
3102 . mtctr 11
3103 . ld 11,16(12)
3104 . bctr
3105 .
3106 . .section .plt
3107 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3108
3109 The "reloc ()" notation is supposed to indicate that the linker emits
3110 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3111 copying.
3112
3113 What are the difficulties here? Well, firstly, the relocations
3114 examined by the linker in check_relocs are against the function code
3115 sym .foo, while the dynamic relocation in the plt is emitted against
3116 the function descriptor symbol, foo. Somewhere along the line, we need
3117 to carefully copy dynamic link information from one symbol to the other.
3118 Secondly, the generic part of the elf linker will make .foo a dynamic
3119 symbol as is normal for most other backends. We need foo dynamic
3120 instead, at least for an application final link. However, when
3121 creating a shared library containing foo, we need to have both symbols
3122 dynamic so that references to .foo are satisfied during the early
3123 stages of linking. Otherwise the linker might decide to pull in a
8387904d
AM		 3124 definition from some other object, eg. a static library.
3125
3126 Update: As of August 2004, we support a new convention. Function
3127 calls may use the function descriptor symbol, ie. "bl foo". This
3128 behaves exactly as "bl .foo". */
65f38f15
AM		 3129
3130/* The linker needs to keep track of the number of relocs that it
3131 decides to copy as dynamic relocs in check_relocs for each symbol.
3132 This is so that it can later discard them if they are found to be
3133 unnecessary. We store the information in a field extending the
3134 regular ELF linker hash table. */
3135
3136struct ppc_dyn_relocs
3137{
3138 struct ppc_dyn_relocs *next;
3139
3140 /* The input section of the reloc. */
3141 asection *sec;
3142
3143 /* Total number of relocs copied for the input section. */
3144 bfd_size_type count;
3145
3146 /* Number of pc-relative relocs copied for the input section. */
3147 bfd_size_type pc_count;
3148};
3149
411e1bfb
AM		 3150/* Track GOT entries needed for a given symbol. We might need more
3151 than one got entry per symbol. */
3152struct got_entry
3153{
3154 struct got_entry *next;
3155
e7b938ca 3156 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM		 3157 bfd_vma addend;
3158
e717da7e
AM		 3159 /* Unlike other ELF targets, we use separate GOT entries for the same
3160 symbol referenced from different input files. This is to support
3161 automatic multiple TOC/GOT sections, where the TOC base can vary
102890f0
AM		 3162 from one input file to another. FIXME: After group_sections we
3163 ought to merge entries within the group.
e717da7e
AM		 3164
3165 Point to the BFD owning this GOT entry. */
3166 bfd *owner;
3167
3168 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
3169 TLS_TPREL or TLS_DTPREL for tls entries. */
3170 char tls_type;
3171
e7b938ca 3172 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM		 3173 union
3174 {
3175 bfd_signed_vma refcount;
3176 bfd_vma offset;
3177 } got;
411e1bfb
AM		 3178};
3179
3180/* The same for PLT. */
3181struct plt_entry
3182{
3183 struct plt_entry *next;
3184
3185 bfd_vma addend;
3186
3187 union
3188 {
3189 bfd_signed_vma refcount;
3190 bfd_vma offset;
3191 } plt;
3192};
3193
65f38f15 3194/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM		 3195 selects those that must be copied when linking a shared library,
3196 even when the symbol is local. */
65f38f15 3197
411e1bfb 3198#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM		 3199 ((RTYPE) != R_PPC64_REL32 \
3200 && (RTYPE) != R_PPC64_REL64 \
04c9666a 3201 && (RTYPE) != R_PPC64_REL30)
65f38f15 3202
f4656909
AM		 3203/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3204 copying dynamic variables from a shared lib into an app's dynbss
3205 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 3206 shared lib. With code that gcc generates, it's vital that this be
3207 enabled; In the PowerPC64 ABI, the address of a function is actually
3208 the address of a function descriptor, which resides in the .opd
3209 section. gcc uses the descriptor directly rather than going via the
3210 GOT as some other ABI's do, which means that initialized function
3211 pointers must reference the descriptor. Thus, a function pointer
3212 initialized to the address of a function in a shared library will
3213 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 3214 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM		 3215 presents a problem as a plt entry for that function is also
3216 initialized from the function descriptor symbol and the copy reloc
3217 may not be initialized first. */
a23b6845 3218#define ELIMINATE_COPY_RELOCS 1
f4656909 3219
721956f4
AM		 3220/* Section name for stubs is the associated section name plus this
3221 string. */
3222#define STUB_SUFFIX ".stub"
3223
3224/* Linker stubs.
3225 ppc_stub_long_branch:
3226 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3227 destination, but a 24 bit branch in a stub section will reach.
3228 . b dest
3229
3230 ppc_stub_plt_branch:
3231 Similar to the above, but a 24 bit branch in the stub section won't
3232 reach its destination.
87e226ce
AM		 3233 . addis %r12,%r2,xxx@toc@ha
3234 . ld %r11,xxx@toc@l(%r12)
721956f4
AM		 3235 . mtctr %r11
3236 . bctr
3237
3238 ppc_stub_plt_call:
2c66dc6c
AM		 3239 Used to call a function in a shared library. If it so happens that
3240 the plt entry referenced crosses a 64k boundary, then an extra
ac2df442 3241 "addi %r12,%r12,xxx@toc@l" will be inserted before the "mtctr".
87e226ce 3242 . addis %r12,%r2,xxx@toc@ha
721956f4 3243 . std %r2,40(%r1)
87e226ce 3244 . ld %r11,xxx+0@toc@l(%r12)
721956f4 3245 . mtctr %r11
ac2df442 3246 . ld %r2,xxx+8@toc@l(%r12)
87e226ce 3247 . ld %r11,xxx+16@toc@l(%r12)
721956f4 3248 . bctr
ad8e1ba5
AM		 3249
3250 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3251 code to adjust the value and save r2 to support multiple toc sections.
3252 A ppc_stub_long_branch with an r2 offset looks like:
3253 . std %r2,40(%r1)
3254 . addis %r2,%r2,off@ha
3255 . addi %r2,%r2,off@l
3256 . b dest
3257
3258 A ppc_stub_plt_branch with an r2 offset looks like:
3259 . std %r2,40(%r1)
3260 . addis %r12,%r2,xxx@toc@ha
3261 . ld %r11,xxx@toc@l(%r12)
3262 . addis %r2,%r2,off@ha
3263 . addi %r2,%r2,off@l
3264 . mtctr %r11
3265 . bctr
ac2df442
AM		 3266
3267 In cases where the "addis" instruction would add zero, the "addis" is
3268 omitted and following instructions modified slightly in some cases.
721956f4
AM		 3269*/
3270
3271enum ppc_stub_type {
3272 ppc_stub_none,
3273 ppc_stub_long_branch,
ad8e1ba5 3274 ppc_stub_long_branch_r2off,
721956f4 3275 ppc_stub_plt_branch,
ad8e1ba5 3276 ppc_stub_plt_branch_r2off,
721956f4
AM		 3277 ppc_stub_plt_call
3278};
3279
3280struct ppc_stub_hash_entry {
3281
3282 /* Base hash table entry structure. */
3283 struct bfd_hash_entry root;
3284
ad8e1ba5
AM		 3285 enum ppc_stub_type stub_type;
3286
721956f4
AM		 3287 /* The stub section. */
3288 asection *stub_sec;
3289
3290 /* Offset within stub_sec of the beginning of this stub. */
3291 bfd_vma stub_offset;
3292
3293 /* Given the symbol's value and its section we can determine its final
3294 value when building the stubs (so the stub knows where to jump. */
3295 bfd_vma target_value;
3296 asection *target_section;
3297
721956f4
AM		 3298 /* The symbol table entry, if any, that this was derived from. */
3299 struct ppc_link_hash_entry *h;
3300
411e1bfb
AM		 3301 /* And the reloc addend that this was derived from. */
3302 bfd_vma addend;
3303
721956f4
AM		 3304 /* Where this stub is being called from, or, in the case of combined
3305 stub sections, the first input section in the group. */
3306 asection *id_sec;
3307};
3308
3309struct ppc_branch_hash_entry {
3310
3311 /* Base hash table entry structure. */
3312 struct bfd_hash_entry root;
3313
c456f082 3314 /* Offset within branch lookup table. */
721956f4
AM		 3315 unsigned int offset;
3316
3317 /* Generation marker. */
3318 unsigned int iter;
3319};
65f38f15
AM		 3320
3321struct ppc_link_hash_entry
3322{
3323 struct elf_link_hash_entry elf;
3324
b3fac117
AM		 3325 union {
3326 /* A pointer to the most recently used stub hash entry against this
3327 symbol. */
3328 struct ppc_stub_hash_entry *stub_cache;
3329
3330 /* A pointer to the next symbol starting with a '.' */
3331 struct ppc_link_hash_entry *next_dot_sym;
3332 } u;
721956f4 3333
65f38f15
AM		 3334 /* Track dynamic relocs copied for this symbol. */
3335 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 3336
721956f4 3337 /* Link between function code and descriptor symbols. */
34814b9f 3338 struct ppc_link_hash_entry *oh;
721956f4 3339
e86ce104
AM		 3340 /* Flag function code and descriptor symbols. */
3341 unsigned int is_func:1;
3342 unsigned int is_func_descriptor:1;
908b32fc 3343 unsigned int fake:1;
411e1bfb 3344
c5614fa4
AM		 3345 /* Whether global opd/toc sym has been adjusted or not.
3346 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3347 should be set for all globals defined in any opd/toc section. */
754021d0
AM		 3348 unsigned int adjust_done:1;
3349
99877b66
AM		 3350 /* Set if we twiddled this symbol to weak at some stage. */
3351 unsigned int was_undefined:1;
3352
411e1bfb 3353 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 3354 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3355 corresponding relocs are encountered during check_relocs.
3356 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3357 indicate the corresponding GOT entry type is not needed.
3358 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3359 a TPREL one. We use a separate flag rather than setting TPREL
3360 just for convenience in distinguishing the two cases. */
3361#define TLS_GD 1 /* GD reloc. */
3362#define TLS_LD 2 /* LD reloc. */
3363#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3364#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3365#define TLS_TLS 16 /* Any TLS reloc. */
3366#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3367#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3368 char tls_mask;
65f38f15
AM		 3369};
3370
3371/* ppc64 ELF linker hash table. */
3372
3373struct ppc_link_hash_table
3374{
3375 struct elf_link_hash_table elf;
3376
721956f4
AM		 3377 /* The stub hash table. */
3378 struct bfd_hash_table stub_hash_table;
3379
3380 /* Another hash table for plt_branch stubs. */
3381 struct bfd_hash_table branch_hash_table;
3382
3383 /* Linker stub bfd. */
3384 bfd *stub_bfd;
3385
3386 /* Linker call-backs. */
4ce794b7
AM		 3387 asection * (*add_stub_section) (const char *, asection *);
3388 void (*layout_sections_again) (void);
721956f4
AM		 3389
3390 /* Array to keep track of which stub sections have been created, and
3391 information on stub grouping. */
3392 struct map_stub {
3393 /* This is the section to which stubs in the group will be attached. */
3394 asection *link_sec;
3395 /* The stub section. */
3396 asection *stub_sec;
ad8e1ba5
AM		 3397 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3398 bfd_vma toc_off;
721956f4
AM		 3399 } *stub_group;
3400
ad8e1ba5
AM		 3401 /* Temp used when calculating TOC pointers. */
3402 bfd_vma toc_curr;
3403
8f3bab57
AM		 3404 /* Highest input section id. */
3405 int top_id;
3406
734b6cf9
AM		 3407 /* Highest output section index. */
3408 int top_index;
3409
b3fac117
AM		 3410 /* Used when adding symbols. */
3411 struct ppc_link_hash_entry *dot_syms;
3412
734b6cf9
AM		 3413 /* List of input sections for each output section. */
3414 asection **input_list;
721956f4 3415
65f38f15 3416 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 3417 asection *got;
4ce794b7
AM		 3418 asection *plt;
3419 asection *relplt;
3420 asection *dynbss;
3421 asection *relbss;
3422 asection *glink;
82bd7b59 3423 asection *sfpr;
4ce794b7
AM		 3424 asection *brlt;
3425 asection *relbrlt;
ec338859 3426
8387904d
AM		 3427 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3428 struct ppc_link_hash_entry *tls_get_addr;
3429 struct ppc_link_hash_entry *tls_get_addr_fd;
411e1bfb 3430
9b5ecbd0
AM		 3431 /* Statistics. */
3432 unsigned long stub_count[ppc_stub_plt_call];
3433
ee75fd95
AM		 3434 /* Number of stubs against global syms. */
3435 unsigned long stub_globals;
3436
ad8e1ba5 3437 /* Set if we should emit symbols for stubs. */
99877b66 3438 unsigned int emit_stub_syms:1;
ad8e1ba5 3439
4c52953f
AM		 3440 /* Support for multiple toc sections. */
3441 unsigned int no_multi_toc:1;
3442 unsigned int multi_toc_needed:1;
3443
5d1634d7 3444 /* Set on error. */
99877b66 3445 unsigned int stub_error:1;
721956f4 3446
99877b66
AM		 3447 /* Temp used by ppc64_elf_check_directives. */
3448 unsigned int twiddled_syms:1;
721956f4
AM		 3449
3450 /* Incremented every time we size stubs. */
3451 unsigned int stub_iteration;
5d1634d7 3452
ec338859
AM		 3453 /* Small local sym to section mapping cache. */
3454 struct sym_sec_cache sym_sec;
65f38f15
AM		 3455};
3456
4c52953f
AM		 3457/* Rename some of the generic section flags to better document how they
3458 are used here. */
3459#define has_toc_reloc has_gp_reloc
3460#define makes_toc_func_call need_finalize_relax
3461#define call_check_in_progress reloc_done
3462
65f38f15
AM		 3463/* Get the ppc64 ELF linker hash table from a link_info structure. */
3464
3465#define ppc_hash_table(p) \
3466 ((struct ppc_link_hash_table *) ((p)->hash))
3467
721956f4
AM		 3468#define ppc_stub_hash_lookup(table, string, create, copy) \
3469 ((struct ppc_stub_hash_entry *) \
3470 bfd_hash_lookup ((table), (string), (create), (copy)))
3471
3472#define ppc_branch_hash_lookup(table, string, create, copy) \
3473 ((struct ppc_branch_hash_entry *) \
3474 bfd_hash_lookup ((table), (string), (create), (copy)))
3475
3476/* Create an entry in the stub hash table. */
3477
3478static struct bfd_hash_entry *
4ce794b7
AM		 3479stub_hash_newfunc (struct bfd_hash_entry *entry,
3480 struct bfd_hash_table *table,
3481 const char *string)
721956f4
AM		 3482{
3483 /* Allocate the structure if it has not already been allocated by a
3484 subclass. */
3485 if (entry == NULL)
3486 {
3487 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
3488 if (entry == NULL)
3489 return entry;
3490 }
3491
3492 /* Call the allocation method of the superclass. */
3493 entry = bfd_hash_newfunc (entry, table, string);
3494 if (entry != NULL)
3495 {
3496 struct ppc_stub_hash_entry *eh;
3497
3498 /* Initialize the local fields. */
3499 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 3500 eh->stub_type = ppc_stub_none;
721956f4
AM		 3501 eh->stub_sec = NULL;
3502 eh->stub_offset = 0;
3503 eh->target_value = 0;
3504 eh->target_section = NULL;
721956f4
AM		 3505 eh->h = NULL;
3506 eh->id_sec = NULL;
3507 }
3508
3509 return entry;
3510}
3511
3512/* Create an entry in the branch hash table. */
3513
3514static struct bfd_hash_entry *
4ce794b7
AM		 3515branch_hash_newfunc (struct bfd_hash_entry *entry,
3516 struct bfd_hash_table *table,
3517 const char *string)
721956f4
AM		 3518{
3519 /* Allocate the structure if it has not already been allocated by a
3520 subclass. */
3521 if (entry == NULL)
3522 {
3523 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
3524 if (entry == NULL)
3525 return entry;
3526 }
3527
3528 /* Call the allocation method of the superclass. */
3529 entry = bfd_hash_newfunc (entry, table, string);
3530 if (entry != NULL)
3531 {
3532 struct ppc_branch_hash_entry *eh;
3533
3534 /* Initialize the local fields. */
3535 eh = (struct ppc_branch_hash_entry *) entry;
3536 eh->offset = 0;
3537 eh->iter = 0;
3538 }
3539
3540 return entry;
3541}
3542
65f38f15
AM		 3543/* Create an entry in a ppc64 ELF linker hash table. */
3544
3545static struct bfd_hash_entry *
4ce794b7
AM		 3546link_hash_newfunc (struct bfd_hash_entry *entry,
3547 struct bfd_hash_table *table,
3548 const char *string)
65f38f15
AM		 3549{
3550 /* Allocate the structure if it has not already been allocated by a
3551 subclass. */
3552 if (entry == NULL)
3553 {
3554 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
3555 if (entry == NULL)
3556 return entry;
3557 }
3558
3559 /* Call the allocation method of the superclass. */
3560 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3561 if (entry != NULL)
3562 {
3563 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
3564
b3fac117 3565 memset (&eh->u.stub_cache, 0,
908b32fc 3566 (sizeof (struct ppc_link_hash_entry)
b3fac117
AM		 3567 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
3568
3569 /* When making function calls, old ABI code references function entry
3570 points (dot symbols), while new ABI code references the function
3571 descriptor symbol. We need to make any combination of reference and
3572 definition work together, without breaking archive linking.
3573
3574 For a defined function "foo" and an undefined call to "bar":
3575 An old object defines "foo" and ".foo", references ".bar" (possibly
3576 "bar" too).
3577 A new object defines "foo" and references "bar".
3578
3579 A new object thus has no problem with its undefined symbols being
3580 satisfied by definitions in an old object. On the other hand, the
3581 old object won't have ".bar" satisfied by a new object.
3582
3583 Keep a list of newly added dot-symbols. */
3584
3585 if (string[0] == '.')
3586 {
3587 struct ppc_link_hash_table *htab;
3588
3589 htab = (struct ppc_link_hash_table *) table;
3590 eh->u.next_dot_sym = htab->dot_syms;
3591 htab->dot_syms = eh;
3592 }
65f38f15
AM		 3593 }
3594
3595 return entry;
3596}
3597
3598/* Create a ppc64 ELF linker hash table. */
3599
3600static struct bfd_link_hash_table *
4ce794b7 3601ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 3602{
3603 struct ppc_link_hash_table *htab;
3604 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
3605
4ce794b7 3606 htab = bfd_zmalloc (amt);
65f38f15
AM		 3607 if (htab == NULL)
3608 return NULL;
3609
66eb6687
AM		 3610 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
3611 sizeof (struct ppc_link_hash_entry)))
65f38f15 3612 {
e2d34d7d 3613 free (htab);
65f38f15
AM		 3614 return NULL;
3615 }
3616
721956f4 3617 /* Init the stub hash table too. */
66eb6687
AM		 3618 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
3619 sizeof (struct ppc_stub_hash_entry)))
721956f4
AM		 3620 return NULL;
3621
3622 /* And the branch hash table. */
66eb6687
AM		 3623 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
3624 sizeof (struct ppc_branch_hash_entry)))
721956f4
AM		 3625 return NULL;
3626
3254fd24
AM		 3627 /* Initializing two fields of the union is just cosmetic. We really
3628 only care about glist, but when compiled on a 32-bit host the
3629 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3630 debugger inspection of these fields look nicer. */
a6aa5195
AM		 3631 htab->elf.init_got_refcount.refcount = 0;
3632 htab->elf.init_got_refcount.glist = NULL;
3633 htab->elf.init_plt_refcount.refcount = 0;
3634 htab->elf.init_plt_refcount.glist = NULL;
3635 htab->elf.init_got_offset.offset = 0;
3636 htab->elf.init_got_offset.glist = NULL;
3637 htab->elf.init_plt_offset.offset = 0;
3638 htab->elf.init_plt_offset.glist = NULL;
3254fd24 3639
65f38f15
AM		 3640 return &htab->elf.root;
3641}
3642
721956f4
AM		 3643/* Free the derived linker hash table. */
3644
3645static void
4ce794b7 3646ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM		 3647{
3648 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3649
3650 bfd_hash_table_free (&ret->stub_hash_table);
3651 bfd_hash_table_free (&ret->branch_hash_table);
3652 _bfd_generic_link_hash_table_free (hash);
3653}
3654
e717da7e
AM		 3655/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3656
3657void
3658ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3659{
3660 struct ppc_link_hash_table *htab;
3661
3662 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3663
3664/* Always hook our dynamic sections into the first bfd, which is the
3665 linker created stub bfd. This ensures that the GOT header is at
3666 the start of the output TOC section. */
3667 htab = ppc_hash_table (info);
3668 htab->stub_bfd = abfd;
3669 htab->elf.dynobj = abfd;
3670}
3671
721956f4
AM		 3672/* Build a name for an entry in the stub hash table. */
3673
3674static char *
4ce794b7
AM		 3675ppc_stub_name (const asection *input_section,
3676 const asection *sym_sec,
3677 const struct ppc_link_hash_entry *h,
3678 const Elf_Internal_Rela *rel)
721956f4
AM		 3679{
3680 char *stub_name;
3681 bfd_size_type len;
3682
3683 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3684 offsets from a sym as a branch target? In fact, we could
3685 probably assume the addend is always zero. */
3686 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3687
3688 if (h)
3689 {
3690 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3691 stub_name = bfd_malloc (len);
46de2a7c
AM		 3692 if (stub_name == NULL)
3693 return stub_name;
3694
3695 sprintf (stub_name, "%08x.%s+%x",
3696 input_section->id & 0xffffffff,
3697 h->elf.root.root.string,
3698 (int) rel->r_addend & 0xffffffff);
721956f4
AM		 3699 }
3700 else
3701 {
ad8e1ba5 3702 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4 3703 stub_name = bfd_malloc (len);
46de2a7c
AM		 3704 if (stub_name == NULL)
3705 return stub_name;
3706
3707 sprintf (stub_name, "%08x.%x:%x+%x",
3708 input_section->id & 0xffffffff,
3709 sym_sec->id & 0xffffffff,
3710 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3711 (int) rel->r_addend & 0xffffffff);
721956f4 3712 }
ee75fd95
AM		 3713 if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
3714 stub_name[len - 2] = 0;
721956f4
AM		 3715 return stub_name;
3716}
3717
3718/* Look up an entry in the stub hash. Stub entries are cached because
3719 creating the stub name takes a bit of time. */
3720
3721static struct ppc_stub_hash_entry *
4ce794b7
AM		 3722ppc_get_stub_entry (const asection *input_section,
3723 const asection *sym_sec,
039b3fef 3724 struct ppc_link_hash_entry *h,
4ce794b7
AM		 3725 const Elf_Internal_Rela *rel,
3726 struct ppc_link_hash_table *htab)
721956f4
AM		 3727{
3728 struct ppc_stub_hash_entry *stub_entry;
721956f4
AM		 3729 const asection *id_sec;
3730
3731 /* If this input section is part of a group of sections sharing one
3732 stub section, then use the id of the first section in the group.
3733 Stub names need to include a section id, as there may well be
3734 more than one stub used to reach say, printf, and we need to
3735 distinguish between them. */
3736 id_sec = htab->stub_group[input_section->id].link_sec;
3737
b3fac117
AM		 3738 if (h != NULL && h->u.stub_cache != NULL
3739 && h->u.stub_cache->h == h
3740 && h->u.stub_cache->id_sec == id_sec)
721956f4 3741 {
b3fac117 3742 stub_entry = h->u.stub_cache;
721956f4
AM		 3743 }
3744 else
3745 {
3746 char *stub_name;
3747
3748 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3749 if (stub_name == NULL)
3750 return NULL;
3751
3752 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3753 stub_name, FALSE, FALSE);
721956f4 3754 if (h != NULL)
b3fac117 3755 h->u.stub_cache = stub_entry;
721956f4
AM		 3756
3757 free (stub_name);
3758 }
3759
3760 return stub_entry;
3761}
3762
3763/* Add a new stub entry to the stub hash. Not all fields of the new
3764 stub entry are initialised. */
3765
3766static struct ppc_stub_hash_entry *
4ce794b7
AM		 3767ppc_add_stub (const char *stub_name,
3768 asection *section,
3769 struct ppc_link_hash_table *htab)
721956f4
AM		 3770{
3771 asection *link_sec;
3772 asection *stub_sec;
3773 struct ppc_stub_hash_entry *stub_entry;
3774
3775 link_sec = htab->stub_group[section->id].link_sec;
3776 stub_sec = htab->stub_group[section->id].stub_sec;
3777 if (stub_sec == NULL)
3778 {
3779 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3780 if (stub_sec == NULL)
3781 {
d4c88bbb 3782 size_t namelen;
721956f4
AM		 3783 bfd_size_type len;
3784 char *s_name;
3785
d4c88bbb
AM		 3786 namelen = strlen (link_sec->name);
3787 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM		 3788 s_name = bfd_alloc (htab->stub_bfd, len);
3789 if (s_name == NULL)
3790 return NULL;
3791
d4c88bbb
AM		 3792 memcpy (s_name, link_sec->name, namelen);
3793 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM		 3794 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3795 if (stub_sec == NULL)
3796 return NULL;
3797 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3798 }
3799 htab->stub_group[section->id].stub_sec = stub_sec;
3800 }
3801
3802 /* Enter this entry into the linker stub hash table. */
3803 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3804 TRUE, FALSE);
721956f4
AM		 3805 if (stub_entry == NULL)
3806 {
d003868e
AM		 3807 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
3808 section->owner, stub_name);
721956f4
AM		 3809 return NULL;
3810 }
3811
3812 stub_entry->stub_sec = stub_sec;
3813 stub_entry->stub_offset = 0;
3814 stub_entry->id_sec = link_sec;
3815 return stub_entry;
3816}
3817
82bd7b59
AM		 3818/* Create sections for linker generated code. */
3819
b34976b6 3820static bfd_boolean
4ce794b7 3821create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM		 3822{
3823 struct ppc_link_hash_table *htab;
3824 flagword flags;
3825
3826 htab = ppc_hash_table (info);
3827
3828 /* Create .sfpr for code to save and restore fp regs. */
3829 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3830 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3496cb2a
L		 3831 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
3832 flags);
82bd7b59 3833 if (htab->sfpr == NULL
82bd7b59 3834 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3835 return FALSE;
82bd7b59 3836
721956f4 3837 /* Create .glink for lazy dynamic linking support. */
3496cb2a
L		 3838 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
3839 flags);
4ce794b7 3840 if (htab->glink == NULL
ee4bf8d2 3841 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
b34976b6 3842 return FALSE;
82bd7b59 3843
c456f082 3844 /* Create branch lookup table for plt_branch stubs. */
e4e0193e
AM		 3845 flags = (SEC_ALLOC | SEC_LOAD
3846 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3847 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
3848 flags);
4ce794b7 3849 if (htab->brlt == NULL
4ce794b7 3850 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3851 return FALSE;
721956f4 3852
e4e0193e 3853 if (!info->shared)
c456f082
AM		 3854 return TRUE;
3855
e4e0193e
AM		 3856 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3857 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3858 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
3859 ".rela.branch_lt",
3860 flags);
c456f082
AM		 3861 if (!htab->relbrlt
3862 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
3863 return FALSE;
3864
b34976b6 3865 return TRUE;
82bd7b59
AM		 3866}
3867
e717da7e
AM		 3868/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3869 not already done. */
65f38f15 3870
b34976b6 3871static bfd_boolean
e717da7e 3872create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3873{
e717da7e
AM		 3874 asection *got, *relgot;
3875 flagword flags;
3876 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3877
0c8d6e5c 3878 if (!is_ppc64_elf (abfd))
0ffa91dd
NC		 3879 return FALSE;
3880
4ce794b7 3881 if (!htab->got)
e717da7e
AM		 3882 {
3883 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3884 return FALSE;
3885
3886 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3887 if (!htab->got)
3888 abort ();
3889 }
3890
3891 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3892 | SEC_LINKER_CREATED);
3893
c456f082 3894 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
e717da7e 3895 if (!got
e717da7e
AM		 3896 || !bfd_set_section_alignment (abfd, got, 3))
3897 return FALSE;
65f38f15 3898
c456f082
AM		 3899 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
3900 flags | SEC_READONLY);
e717da7e 3901 if (!relgot
e717da7e 3902 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3903 return FALSE;
e717da7e
AM		 3904
3905 ppc64_elf_tdata (abfd)->got = got;
3906 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3907 return TRUE;
65f38f15 3908}
5bd4f169 3909
82bd7b59 3910/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3911
b34976b6 3912static bfd_boolean
4ce794b7 3913ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3914{
65f38f15 3915 struct ppc_link_hash_table *htab;
5bd4f169 3916
65f38f15 3917 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3918 return FALSE;
65f38f15 3919
e717da7e
AM		 3920 htab = ppc_hash_table (info);
3921 if (!htab->got)
3922 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM		 3923 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3924 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3925 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3926 if (!info->shared)
4ce794b7 3927 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3928
e717da7e 3929 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3930 || (!info->shared && !htab->relbss))
65f38f15
AM		 3931 abort ();
3932
b34976b6 3933 return TRUE;
5bd4f169
AM		 3934}
3935
40d16e0b
AM		 3936/* Merge PLT info on FROM with that on TO. */
3937
3938static void
3939move_plt_plist (struct ppc_link_hash_entry *from,
3940 struct ppc_link_hash_entry *to)
3941{
3942 if (from->elf.plt.plist != NULL)
3943 {
3944 if (to->elf.plt.plist != NULL)
3945 {
3946 struct plt_entry **entp;
3947 struct plt_entry *ent;
3948
3949 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
3950 {
3951 struct plt_entry *dent;
3952
3953 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
3954 if (dent->addend == ent->addend)
3955 {
3956 dent->plt.refcount += ent->plt.refcount;
3957 *entp = ent->next;
3958 break;
3959 }
3960 if (dent == NULL)
3961 entp = &ent->next;
3962 }
3963 *entp = to->elf.plt.plist;
3964 }
3965
3966 to->elf.plt.plist = from->elf.plt.plist;
3967 from->elf.plt.plist = NULL;
3968 }
3969}
3970
65f38f15
AM		 3971/* Copy the extra info we tack onto an elf_link_hash_entry. */
3972
3973static void
fcfa13d2
AM		 3974ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
3975 struct elf_link_hash_entry *dir,
3976 struct elf_link_hash_entry *ind)
65f38f15
AM		 3977{
3978 struct ppc_link_hash_entry *edir, *eind;
3979
3980 edir = (struct ppc_link_hash_entry *) dir;
3981 eind = (struct ppc_link_hash_entry *) ind;
3982
411e1bfb 3983 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3984 if (eind->dyn_relocs != NULL)
65f38f15 3985 {
bbd7ec4a
AM		 3986 if (edir->dyn_relocs != NULL)
3987 {
3988 struct ppc_dyn_relocs **pp;
3989 struct ppc_dyn_relocs *p;
3990
fcfa13d2 3991 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a
AM		 3992 list. Merge any entries against the same section. */
3993 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3994 {
3995 struct ppc_dyn_relocs *q;
3996
3997 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3998 if (q->sec == p->sec)
3999 {
4000 q->pc_count += p->pc_count;
4001 q->count += p->count;
4002 *pp = p->next;
4003 break;
4004 }
4005 if (q == NULL)
4006 pp = &p->next;
4007 }
4008 *pp = edir->dyn_relocs;
4009 }
4010
65f38f15
AM		 4011 edir->dyn_relocs = eind->dyn_relocs;
4012 eind->dyn_relocs = NULL;
4013 }
65f38f15 4014
6349e628
AM		 4015 edir->is_func |= eind->is_func;
4016 edir->is_func_descriptor |= eind->is_func_descriptor;
58ac9f71 4017 edir->tls_mask |= eind->tls_mask;
6349e628 4018
81848ca0 4019 /* If called to transfer flags for a weakdef during processing
f5385ebf 4020 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
81848ca0 4021 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
f5385ebf
AM		 4022 if (!(ELIMINATE_COPY_RELOCS
4023 && eind->elf.root.type != bfd_link_hash_indirect
4024 && edir->elf.dynamic_adjusted))
4025 edir->elf.non_got_ref |= eind->elf.non_got_ref;
81848ca0 4026
f5385ebf
AM		 4027 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4028 edir->elf.ref_regular |= eind->elf.ref_regular;
4029 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4030 edir->elf.needs_plt |= eind->elf.needs_plt;
6349e628
AM		 4031
4032 /* If we were called to copy over info for a weak sym, that's all. */
4033 if (eind->elf.root.type != bfd_link_hash_indirect)
4034 return;
4035
81848ca0
AM		 4036 /* Copy over got entries that we may have already seen to the
4037 symbol which just became indirect. */
411e1bfb
AM		 4038 if (eind->elf.got.glist != NULL)
4039 {
4040 if (edir->elf.got.glist != NULL)
4041 {
4042 struct got_entry **entp;
4043 struct got_entry *ent;
4044
4045 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4046 {
4047 struct got_entry *dent;
4048
4049 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4050 if (dent->addend == ent->addend
e717da7e 4051 && dent->owner == ent->owner
411e1bfb
AM		 4052 && dent->tls_type == ent->tls_type)
4053 {
4054 dent->got.refcount += ent->got.refcount;
4055 *entp = ent->next;
4056 break;
4057 }
4058 if (dent == NULL)
4059 entp = &ent->next;
4060 }
4061 *entp = edir->elf.got.glist;
4062 }
4063
4064 edir->elf.got.glist = eind->elf.got.glist;
4065 eind->elf.got.glist = NULL;
4066 }
4067
4068 /* And plt entries. */
40d16e0b 4069 move_plt_plist (eind, edir);
411e1bfb 4070
fcfa13d2 4071 if (eind->elf.dynindx != -1)
411e1bfb 4072 {
fcfa13d2
AM		 4073 if (edir->elf.dynindx != -1)
4074 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4075 edir->elf.dynstr_index);
411e1bfb
AM		 4076 edir->elf.dynindx = eind->elf.dynindx;
4077 edir->elf.dynstr_index = eind->elf.dynstr_index;
4078 eind->elf.dynindx = -1;
4079 eind->elf.dynstr_index = 0;
4080 }
411e1bfb
AM		 4081}
4082
8387904d
AM		 4083/* Find the function descriptor hash entry from the given function code
4084 hash entry FH. Link the entries via their OH fields. */
4085
4086static struct ppc_link_hash_entry *
4087get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
4088{
4089 struct ppc_link_hash_entry *fdh = fh->oh;
4090
4091 if (fdh == NULL)
4092 {
4093 const char *fd_name = fh->elf.root.root.string + 1;
4094
4095 fdh = (struct ppc_link_hash_entry *)
4096 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
4097 if (fdh != NULL)
4098 {
4099 fdh->is_func_descriptor = 1;
4100 fdh->oh = fh;
4101 fh->is_func = 1;
4102 fh->oh = fdh;
4103 }
4104 }
4105
4106 return fdh;
4107}
4108
bb700d78
AM		 4109/* Make a fake function descriptor sym for the code sym FH. */
4110
4111static struct ppc_link_hash_entry *
4112make_fdh (struct bfd_link_info *info,
908b32fc 4113 struct ppc_link_hash_entry *fh)
bb700d78
AM		 4114{
4115 bfd *abfd;
4116 asymbol *newsym;
4117 struct bfd_link_hash_entry *bh;
4118 struct ppc_link_hash_entry *fdh;
4119
4120 abfd = fh->elf.root.u.undef.abfd;
4121 newsym = bfd_make_empty_symbol (abfd);
4122 newsym->name = fh->elf.root.root.string + 1;
4123 newsym->section = bfd_und_section_ptr;
4124 newsym->value = 0;
908b32fc 4125 newsym->flags = BSF_WEAK;
bb700d78
AM		 4126
4127 bh = NULL;
4128 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4129 newsym->flags, newsym->section,
4130 newsym->value, NULL, FALSE, FALSE,
4131 &bh))
4132 return NULL;
4133
4134 fdh = (struct ppc_link_hash_entry *) bh;
4135 fdh->elf.non_elf = 0;
908b32fc
AM		 4136 fdh->fake = 1;
4137 fdh->is_func_descriptor = 1;
4138 fdh->oh = fh;
4139 fh->is_func = 1;
4140 fh->oh = fdh;
bb700d78
AM		 4141 return fdh;
4142}
4143
8387904d
AM		 4144/* Fix function descriptor symbols defined in .opd sections to be
4145 function type. */
555cd476
AM		 4146
4147static bfd_boolean
b3fac117 4148ppc64_elf_add_symbol_hook (bfd *ibfd ATTRIBUTE_UNUSED,
555cd476
AM		 4149 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4150 Elf_Internal_Sym *isym,
b3fac117 4151 const char **name ATTRIBUTE_UNUSED,
555cd476
AM		 4152 flagword *flags ATTRIBUTE_UNUSED,
4153 asection **sec,
4154 bfd_vma *value ATTRIBUTE_UNUSED)
4155{
8843416a
AM		 4156 if (*sec != NULL
4157 && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
555cd476 4158 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
433817dd 4159
555cd476
AM		 4160 return TRUE;
4161}
4162
8387904d 4163/* This function makes an old ABI object reference to ".bar" cause the
908b32fc
AM		 4164 inclusion of a new ABI object archive that defines "bar".
4165 NAME is a symbol defined in an archive. Return a symbol in the hash
4166 table that might be satisfied by the archive symbols. */
8387904d
AM		 4167
4168static struct elf_link_hash_entry *
4169ppc64_elf_archive_symbol_lookup (bfd *abfd,
4170 struct bfd_link_info *info,
4171 const char *name)
4172{
4173 struct elf_link_hash_entry *h;
4174 char *dot_name;
4175 size_t len;
4176
4177 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
908b32fc
AM		 4178 if (h != NULL
4179 /* Don't return this sym if it is a fake function descriptor
4180 created by add_symbol_adjust. */
4181 && !(h->root.type == bfd_link_hash_undefweak
4182 && ((struct ppc_link_hash_entry *) h)->fake))
8387904d
AM		 4183 return h;
4184
4185 if (name[0] == '.')
4186 return h;
4187
4188 len = strlen (name);
4189 dot_name = bfd_alloc (abfd, len + 2);
4190 if (dot_name == NULL)
4191 return (struct elf_link_hash_entry *) 0 - 1;
4192 dot_name[0] = '.';
4193 memcpy (dot_name + 1, name, len + 1);
4194 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4195 bfd_release (abfd, dot_name);
4196 return h;
4197}
4198
4199/* This function satisfies all old ABI object references to ".bar" if a
99877b66
AM		 4200 new ABI object defines "bar". Well, at least, undefined dot symbols
4201 are made weak. This stops later archive searches from including an
4202 object if we already have a function descriptor definition. It also
35b0ce59
AM		 4203 prevents the linker complaining about undefined symbols.
4204 We also check and correct mismatched symbol visibility here. The
4205 most restrictive visibility of the function descriptor and the
4206 function entry symbol is used. */
8387904d
AM		 4207
4208static bfd_boolean
b3fac117 4209add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
8387904d 4210{
8387904d
AM		 4211 struct ppc_link_hash_table *htab;
4212 struct ppc_link_hash_entry *fdh;
4213
b3fac117 4214 if (eh->elf.root.type == bfd_link_hash_indirect)
8387904d
AM		 4215 return TRUE;
4216
b3fac117
AM		 4217 if (eh->elf.root.type == bfd_link_hash_warning)
4218 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
8387904d 4219
b3fac117
AM		 4220 if (eh->elf.root.root.string[0] != '.')
4221 abort ();
8387904d 4222
b3fac117 4223 htab = ppc_hash_table (info);
99877b66 4224 fdh = get_fdh (eh, htab);
bb700d78 4225 if (fdh == NULL
b3fac117 4226 && !info->relocatable
bb700d78
AM		 4227 && (eh->elf.root.type == bfd_link_hash_undefined
4228 || eh->elf.root.type == bfd_link_hash_undefweak)
4229 && eh->elf.ref_regular)
4230 {
4231 /* Make an undefweak function descriptor sym, which is enough to
4232 pull in an --as-needed shared lib, but won't cause link
4233 errors. Archives are handled elsewhere. */
b3fac117 4234 fdh = make_fdh (info, eh);
bb700d78 4235 if (fdh == NULL)
b3fac117 4236 return FALSE;
bb700d78
AM		 4237 else
4238 fdh->elf.ref_regular = 1;
4239 }
e87d886e 4240 else if (fdh != NULL)
8387904d 4241 {
35b0ce59
AM		 4242 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4243 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4244 if (entry_vis < descr_vis)
4245 fdh->elf.other += entry_vis - descr_vis;
4246 else if (entry_vis > descr_vis)
4247 eh->elf.other += descr_vis - entry_vis;
4248
e87d886e
AM		 4249 if ((fdh->elf.root.type == bfd_link_hash_defined
4250 || fdh->elf.root.type == bfd_link_hash_defweak)
4251 && eh->elf.root.type == bfd_link_hash_undefined)
35b0ce59
AM		 4252 {
4253 eh->elf.root.type = bfd_link_hash_undefweak;
4254 eh->was_undefined = 1;
4255 htab->twiddled_syms = 1;
4256 }
8387904d 4257 }
99877b66 4258
8387904d
AM		 4259 return TRUE;
4260}
4261
b3fac117
AM		 4262/* Process list of dot-symbols we made in link_hash_newfunc. */
4263
8387904d 4264static bfd_boolean
b3fac117 4265ppc64_elf_check_directives (bfd *ibfd, struct bfd_link_info *info)
8387904d 4266{
99877b66 4267 struct ppc_link_hash_table *htab;
b3fac117 4268 struct ppc_link_hash_entry **p, *eh;
433817dd 4269
99877b66 4270 htab = ppc_hash_table (info);
0c8d6e5c 4271 if (!is_ppc64_elf (info->output_bfd))
35b0ce59
AM		 4272 return TRUE;
4273
0c8d6e5c 4274 if (is_ppc64_elf (ibfd))
b3fac117
AM		 4275 {
4276 p = &htab->dot_syms;
4277 while ((eh = *p) != NULL)
4278 {
4279 *p = NULL;
4280 if (!add_symbol_adjust (eh, info))
4281 return FALSE;
4282 p = &eh->u.next_dot_sym;
4283 }
4284 }
4285
4286 /* Clear the list for non-ppc64 input files. */
4287 p = &htab->dot_syms;
4288 while ((eh = *p) != NULL)
4289 {
4290 *p = NULL;
4291 p = &eh->u.next_dot_sym;
4292 }
99877b66
AM		 4293
4294 /* We need to fix the undefs list for any syms we have twiddled to
4295 undef_weak. */
4296 if (htab->twiddled_syms)
4297 {
77cfaee6 4298 bfd_link_repair_undef_list (&htab->elf.root);
99877b66
AM		 4299 htab->twiddled_syms = 0;
4300 }
b3fac117 4301 return TRUE;
8387904d
AM		 4302}
4303
97fed1c9
JJ		 4304/* Undo hash table changes when an --as-needed input file is determined
4305 not to be needed. */
4306
4307static bfd_boolean
4308ppc64_elf_as_needed_cleanup (bfd *ibfd ATTRIBUTE_UNUSED,
4309 struct bfd_link_info *info)
4310{
4311 ppc_hash_table (info)->dot_syms = NULL;
4312 return TRUE;
4313}
4314
411e1bfb 4315static bfd_boolean
4ce794b7
AM		 4316update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
4317 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 4318{
4319 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 4320 char *local_got_tls_masks;
411e1bfb
AM		 4321
4322 if (local_got_ents == NULL)
4323 {
4324 bfd_size_type size = symtab_hdr->sh_info;
4325
e7b938ca 4326 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 4327 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM		 4328 if (local_got_ents == NULL)
4329 return FALSE;
4330 elf_local_got_ents (abfd) = local_got_ents;
4331 }
4332
4333 if ((tls_type & TLS_EXPLICIT) == 0)
4334 {
4335 struct got_entry *ent;
4336
4337 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 4338 if (ent->addend == r_addend
4339 && ent->owner == abfd
4340 && ent->tls_type == tls_type)
411e1bfb
AM		 4341 break;
4342 if (ent == NULL)
4343 {
4344 bfd_size_type amt = sizeof (*ent);
4ce794b7 4345 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 4346 if (ent == NULL)
4347 return FALSE;
4348 ent->next = local_got_ents[r_symndx];
4349 ent->addend = r_addend;
e717da7e 4350 ent->owner = abfd;
411e1bfb
AM		 4351 ent->tls_type = tls_type;
4352 ent->got.refcount = 0;
4353 local_got_ents[r_symndx] = ent;
4354 }
4355 ent->got.refcount += 1;
4356 }
4357
e7b938ca
AM		 4358 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
4359 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 4360 return TRUE;
65f38f15
AM		 4361}
4362
411e1bfb 4363static bfd_boolean
4ce794b7 4364update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 4365{
411e1bfb 4366 struct plt_entry *ent;
1e2f5b6e 4367
411e1bfb
AM		 4368 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
4369 if (ent->addend == addend)
4370 break;
4371 if (ent == NULL)
1e2f5b6e 4372 {
411e1bfb 4373 bfd_size_type amt = sizeof (*ent);
4ce794b7 4374 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 4375 if (ent == NULL)
4376 return FALSE;
4377 ent->next = eh->elf.plt.plist;
4378 ent->addend = addend;
4379 ent->plt.refcount = 0;
4380 eh->elf.plt.plist = ent;
1e2f5b6e 4381 }
411e1bfb 4382 ent->plt.refcount += 1;
f5385ebf 4383 eh->elf.needs_plt = 1;
93f3fa99
AM		 4384 if (eh->elf.root.root.string[0] == '.'
4385 && eh->elf.root.root.string[1] != '\0')
4386 eh->is_func = 1;
b34976b6 4387 return TRUE;
1e2f5b6e
AM		 4388}
4389
5bd4f169 4390/* Look through the relocs for a section during the first phase, and
65f38f15 4391 calculate needed space in the global offset table, procedure
5d1634d7 4392 linkage table, and dynamic reloc sections. */
5bd4f169 4393
b34976b6 4394static bfd_boolean
4ce794b7
AM		 4395ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
4396 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4397{
65f38f15 4398 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4399 Elf_Internal_Shdr *symtab_hdr;
4400 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4401 const Elf_Internal_Rela *rel;
4402 const Elf_Internal_Rela *rel_end;
5bd4f169 4403 asection *sreloc;
1e2f5b6e 4404 asection **opd_sym_map;
5bd4f169 4405
1049f94e 4406 if (info->relocatable)
b34976b6 4407 return TRUE;
5bd4f169 4408
680a3378
AM		 4409 /* Don't do anything special with non-loaded, non-alloced sections.
4410 In particular, any relocs in such sections should not affect GOT
4411 and PLT reference counting (ie. we don't allow them to create GOT
4412 or PLT entries), there's no possibility or desire to optimize TLS
4413 relocs, and there's not much point in propagating relocs to shared
4414 libs that the dynamic linker won't relocate. */
4415 if ((sec->flags & SEC_ALLOC) == 0)
4416 return TRUE;
4417
0c8d6e5c 4418 BFD_ASSERT (is_ppc64_elf (abfd));
0ffa91dd 4419
65f38f15 4420 htab = ppc_hash_table (info);
0ffa91dd 4421 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169
AM		 4422
4423 sym_hashes = elf_sym_hashes (abfd);
4424 sym_hashes_end = (sym_hashes
1e2f5b6e
AM		 4425 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
4426 - symtab_hdr->sh_info);
5bd4f169
AM		 4427
4428 sreloc = NULL;
1e2f5b6e
AM		 4429 opd_sym_map = NULL;
4430 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
4431 {
4432 /* Garbage collection needs some extra help with .opd sections.
4433 We don't want to necessarily keep everything referenced by
4434 relocs in .opd, as that would keep all functions. Instead,
4435 if we reference an .opd symbol (a function descriptor), we
4436 want to keep the function code symbol's section. This is
4437 easy for global symbols, but for local syms we need to keep
74f0fb50 4438 information about the associated function section. */
1e2f5b6e
AM		 4439 bfd_size_type amt;
4440
74f0fb50 4441 amt = sec->size * sizeof (*opd_sym_map) / 8;
4ce794b7 4442 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 4443 if (opd_sym_map == NULL)
b34976b6 4444 return FALSE;
74f0fb50 4445 ppc64_elf_section_data (sec)->u.opd.func_sec = opd_sym_map;
7c8fe5c4
AM		 4446 BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal);
4447 ppc64_elf_section_data (sec)->sec_type = sec_opd;
1e2f5b6e 4448 }
5bd4f169 4449
82bd7b59
AM		 4450 if (htab->sfpr == NULL
4451 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 4452 return FALSE;
82bd7b59 4453
5bd4f169
AM		 4454 rel_end = relocs + sec->reloc_count;
4455 for (rel = relocs; rel < rel_end; rel++)
4456 {
4457 unsigned long r_symndx;
4458 struct elf_link_hash_entry *h;
04c9666a 4459 enum elf_ppc64_reloc_type r_type;
411e1bfb 4460 int tls_type = 0;
7c8fe5c4 4461 struct _ppc64_elf_section_data *ppc64_sec;
5bd4f169
AM		 4462
4463 r_symndx = ELF64_R_SYM (rel->r_info);
4464 if (r_symndx < symtab_hdr->sh_info)
4465 h = NULL;
4466 else
973a3492
L		 4467 {
4468 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4469 while (h->root.type == bfd_link_hash_indirect
4470 || h->root.type == bfd_link_hash_warning)
4471 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4472 }
5bd4f169 4473
4ce794b7 4474 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4475 switch (r_type)
5bd4f169 4476 {
411e1bfb
AM		 4477 case R_PPC64_GOT_TLSLD16:
4478 case R_PPC64_GOT_TLSLD16_LO:
4479 case R_PPC64_GOT_TLSLD16_HI:
4480 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 4481 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4482 goto dogottls;
4483
4484 case R_PPC64_GOT_TLSGD16:
4485 case R_PPC64_GOT_TLSGD16_LO:
4486 case R_PPC64_GOT_TLSGD16_HI:
4487 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4488 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4489 goto dogottls;
4490
4491 case R_PPC64_GOT_TPREL16_DS:
4492 case R_PPC64_GOT_TPREL16_LO_DS:
4493 case R_PPC64_GOT_TPREL16_HI:
4494 case R_PPC64_GOT_TPREL16_HA:
4495 if (info->shared)
4496 info->flags |= DF_STATIC_TLS;
4497 tls_type = TLS_TLS | TLS_TPREL;
4498 goto dogottls;
4499
4500 case R_PPC64_GOT_DTPREL16_DS:
4501 case R_PPC64_GOT_DTPREL16_LO_DS:
4502 case R_PPC64_GOT_DTPREL16_HI:
4503 case R_PPC64_GOT_DTPREL16_HA:
4504 tls_type = TLS_TLS | TLS_DTPREL;
4505 dogottls:
4506 sec->has_tls_reloc = 1;
4507 /* Fall thru */
4508
5bd4f169 4509 case R_PPC64_GOT16:
5bd4f169 4510 case R_PPC64_GOT16_DS:
65f38f15
AM		 4511 case R_PPC64_GOT16_HA:
4512 case R_PPC64_GOT16_HI:
4513 case R_PPC64_GOT16_LO:
5bd4f169 4514 case R_PPC64_GOT16_LO_DS:
65f38f15 4515 /* This symbol requires a global offset table entry. */
4c52953f 4516 sec->has_toc_reloc = 1;
e717da7e
AM		 4517 if (ppc64_elf_tdata (abfd)->got == NULL
4518 && !create_got_section (abfd, info))
b34976b6 4519 return FALSE;
5bd4f169
AM		 4520
4521 if (h != NULL)
4522 {
411e1bfb
AM		 4523 struct ppc_link_hash_entry *eh;
4524 struct got_entry *ent;
65f38f15 4525
411e1bfb
AM		 4526 eh = (struct ppc_link_hash_entry *) h;
4527 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
4528 if (ent->addend == rel->r_addend
e717da7e 4529 && ent->owner == abfd
411e1bfb
AM		 4530 && ent->tls_type == tls_type)
4531 break;
4532 if (ent == NULL)
5bd4f169 4533 {
411e1bfb 4534 bfd_size_type amt = sizeof (*ent);
4ce794b7 4535 ent = bfd_alloc (abfd, amt);
411e1bfb 4536 if (ent == NULL)
b34976b6 4537 return FALSE;
411e1bfb
AM		 4538 ent->next = eh->elf.got.glist;
4539 ent->addend = rel->r_addend;
e717da7e 4540 ent->owner = abfd;
411e1bfb
AM		 4541 ent->tls_type = tls_type;
4542 ent->got.refcount = 0;
4543 eh->elf.got.glist = ent;
5bd4f169 4544 }
411e1bfb 4545 ent->got.refcount += 1;
e7b938ca 4546 eh->tls_mask |= tls_type;
5bd4f169 4547 }
411e1bfb
AM		 4548 else
4549 /* This is a global offset table entry for a local symbol. */
4550 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4551 rel->r_addend, tls_type))
4552 return FALSE;
5bd4f169
AM		 4553 break;
4554
5bd4f169 4555 case R_PPC64_PLT16_HA:
65f38f15
AM		 4556 case R_PPC64_PLT16_HI:
4557 case R_PPC64_PLT16_LO:
4558 case R_PPC64_PLT32:
4559 case R_PPC64_PLT64:
5bd4f169 4560 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 4561 actually build the entry in adjust_dynamic_symbol,
4562 because this might be a case of linking PIC code without
4563 linking in any dynamic objects, in which case we don't
4564 need to generate a procedure linkage table after all. */
5bd4f169
AM		 4565 if (h == NULL)
4566 {
4567 /* It does not make sense to have a procedure linkage
3fad3c7c 4568 table entry for a local symbol. */
5bd4f169 4569 bfd_set_error (bfd_error_bad_value);
b34976b6 4570 return FALSE;
5bd4f169 4571 }
411e1bfb
AM		 4572 else
4573 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4574 rel->r_addend))
4575 return FALSE;
5bd4f169
AM		 4576 break;
4577
4578 /* The following relocations don't need to propagate the
4579 relocation if linking a shared object since they are
4580 section relative. */
4581 case R_PPC64_SECTOFF:
4582 case R_PPC64_SECTOFF_LO:
4583 case R_PPC64_SECTOFF_HI:
4584 case R_PPC64_SECTOFF_HA:
4585 case R_PPC64_SECTOFF_DS:
4586 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 4587 case R_PPC64_DTPREL16:
4588 case R_PPC64_DTPREL16_LO:
4589 case R_PPC64_DTPREL16_HI:
4590 case R_PPC64_DTPREL16_HA:
4591 case R_PPC64_DTPREL16_DS:
4592 case R_PPC64_DTPREL16_LO_DS:
4593 case R_PPC64_DTPREL16_HIGHER:
4594 case R_PPC64_DTPREL16_HIGHERA:
4595 case R_PPC64_DTPREL16_HIGHEST:
4596 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 4597 break;
4598
ad8e1ba5
AM		 4599 /* Nor do these. */
4600 case R_PPC64_TOC16:
4601 case R_PPC64_TOC16_LO:
4602 case R_PPC64_TOC16_HI:
4603 case R_PPC64_TOC16_HA:
4604 case R_PPC64_TOC16_DS:
4605 case R_PPC64_TOC16_LO_DS:
4c52953f 4606 sec->has_toc_reloc = 1;
ad8e1ba5
AM		 4607 break;
4608
5bd4f169
AM		 4609 /* This relocation describes the C++ object vtable hierarchy.
4610 Reconstruct it for later use during GC. */
4611 case R_PPC64_GNU_VTINHERIT:
c152c796 4612 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4613 return FALSE;
5bd4f169
AM		 4614 break;
4615
4616 /* This relocation describes which C++ vtable entries are actually
4617 used. Record for later use during GC. */
4618 case R_PPC64_GNU_VTENTRY:
d17e0c6e
JB		 4619 BFD_ASSERT (h != NULL);
4620 if (h != NULL
4621 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 4622 return FALSE;
5bd4f169
AM		 4623 break;
4624
721956f4
AM		 4625 case R_PPC64_REL14:
4626 case R_PPC64_REL14_BRTAKEN:
4627 case R_PPC64_REL14_BRNTAKEN:
220c76dd
AM		 4628 {
4629 asection *dest = NULL;
4630
4631 /* Heuristic: If jumping outside our section, chances are
4632 we are going to need a stub. */
4633 if (h != NULL)
4634 {
4635 /* If the sym is weak it may be overridden later, so
4636 don't assume we know where a weak sym lives. */
4637 if (h->root.type == bfd_link_hash_defined)
4638 dest = h->root.u.def.section;
4639 }
4640 else
4641 dest = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4642 sec, r_symndx);
4643 if (dest != sec)
7c8fe5c4 4644 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
220c76dd 4645 }
721956f4
AM		 4646 /* Fall through. */
4647
5d1634d7 4648 case R_PPC64_REL24:
8387904d 4649 if (h != NULL)
5d1634d7
AM		 4650 {
4651 /* We may need a .plt entry if the function this reloc
4652 refers to is in a shared lib. */
411e1bfb
AM		 4653 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4654 rel->r_addend))
4655 return FALSE;
8387904d
AM		 4656 if (h == &htab->tls_get_addr->elf
4657 || h == &htab->tls_get_addr_fd->elf)
411e1bfb 4658 sec->has_tls_reloc = 1;
8387904d 4659 else if (htab->tls_get_addr == NULL
0112cd26 4660 && CONST_STRNEQ (h->root.root.string, ".__tls_get_addr")
a48ebf4d
AM		 4661 && (h->root.root.string[15] == 0
4662 || h->root.root.string[15] == '@'))
411e1bfb 4663 {
8387904d
AM		 4664 htab->tls_get_addr = (struct ppc_link_hash_entry *) h;
4665 sec->has_tls_reloc = 1;
4666 }
4667 else if (htab->tls_get_addr_fd == NULL
0112cd26 4668 && CONST_STRNEQ (h->root.root.string, "__tls_get_addr")
8387904d
AM		 4669 && (h->root.root.string[14] == 0
4670 || h->root.root.string[14] == '@'))
4671 {
4672 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) h;
411e1bfb
AM		 4673 sec->has_tls_reloc = 1;
4674 }
4675 }
4676 break;
4677
4678 case R_PPC64_TPREL64:
4679 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
4680 if (info->shared)
4681 info->flags |= DF_STATIC_TLS;
4682 goto dotlstoc;
4683
4684 case R_PPC64_DTPMOD64:
4685 if (rel + 1 < rel_end
4686 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
4687 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 4688 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 4689 else
951fd09b 4690 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 4691 goto dotlstoc;
4692
4693 case R_PPC64_DTPREL64:
4694 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
4695 if (rel != relocs
4696 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
4697 && rel[-1].r_offset == rel->r_offset - 8)
4698 /* This is the second reloc of a dtpmod, dtprel pair.
4699 Don't mark with TLS_DTPREL. */
4700 goto dodyn;
4701
4702 dotlstoc:
4703 sec->has_tls_reloc = 1;
4704 if (h != NULL)
4705 {
4706 struct ppc_link_hash_entry *eh;
4707 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4708 eh->tls_mask |= tls_type;
411e1bfb
AM		 4709 }
4710 else
4711 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4712 rel->r_addend, tls_type))
4713 return FALSE;
4714
7c8fe5c4
AM		 4715 ppc64_sec = ppc64_elf_section_data (sec);
4716 if (ppc64_sec->sec_type != sec_toc)
411e1bfb 4717 {
e7b938ca 4718 /* One extra to simplify get_tls_mask. */
eea6121a 4719 bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1;
7c8fe5c4
AM		 4720 ppc64_sec->u.t_symndx = bfd_zalloc (abfd, amt);
4721 if (ppc64_sec->u.t_symndx == NULL)
411e1bfb 4722 return FALSE;
7c8fe5c4
AM		 4723 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
4724 ppc64_sec->sec_type = sec_toc;
411e1bfb
AM		 4725 }
4726 BFD_ASSERT (rel->r_offset % 8 == 0);
7c8fe5c4 4727 ppc64_sec->u.t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM		 4728
4729 /* Mark the second slot of a GD or LD entry.
4730 -1 to indicate GD and -2 to indicate LD. */
4731 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
7c8fe5c4 4732 ppc64_sec->u.t_symndx[rel->r_offset / 8 + 1] = -1;
951fd09b 4733 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
7c8fe5c4 4734 ppc64_sec->u.t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 4735 goto dodyn;
4736
4737 case R_PPC64_TPREL16:
4738 case R_PPC64_TPREL16_LO:
4739 case R_PPC64_TPREL16_HI:
4740 case R_PPC64_TPREL16_HA:
4741 case R_PPC64_TPREL16_DS:
4742 case R_PPC64_TPREL16_LO_DS:
4743 case R_PPC64_TPREL16_HIGHER:
4744 case R_PPC64_TPREL16_HIGHERA:
4745 case R_PPC64_TPREL16_HIGHEST:
4746 case R_PPC64_TPREL16_HIGHESTA:
4747 if (info->shared)
4748 {
4749 info->flags |= DF_STATIC_TLS;
4750 goto dodyn;
5d1634d7
AM		 4751 }
4752 break;
4753
e86ce104 4754 case R_PPC64_ADDR64:
1e2f5b6e 4755 if (opd_sym_map != NULL
1e2f5b6e 4756 && rel + 1 < rel_end
4ce794b7 4757 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e 4758 {
8387904d
AM		 4759 if (h != NULL)
4760 {
4761 if (h->root.root.string[0] == '.'
4762 && h->root.root.string[1] != 0
4763 && get_fdh ((struct ppc_link_hash_entry *) h, htab))
4764 ;
4765 else
4766 ((struct ppc_link_hash_entry *) h)->is_func = 1;
4767 }
4768 else
4769 {
4770 asection *s;
1e2f5b6e 4771
8387904d
AM		 4772 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
4773 r_symndx);
4774 if (s == NULL)
4775 return FALSE;
4776 else if (s != sec)
3f764659 4777 opd_sym_map[rel->r_offset / 8] = s;
8387904d 4778 }
1e2f5b6e 4779 }
e86ce104
AM		 4780 /* Fall through. */
4781
04c9666a 4782 case R_PPC64_REL30:
5bd4f169 4783 case R_PPC64_REL32:
04c9666a 4784 case R_PPC64_REL64:
65f38f15
AM		 4785 case R_PPC64_ADDR14:
4786 case R_PPC64_ADDR14_BRNTAKEN:
4787 case R_PPC64_ADDR14_BRTAKEN:
4788 case R_PPC64_ADDR16:
4789 case R_PPC64_ADDR16_DS:
4790 case R_PPC64_ADDR16_HA:
4791 case R_PPC64_ADDR16_HI:
4792 case R_PPC64_ADDR16_HIGHER:
4793 case R_PPC64_ADDR16_HIGHERA:
4794 case R_PPC64_ADDR16_HIGHEST:
4795 case R_PPC64_ADDR16_HIGHESTA:
4796 case R_PPC64_ADDR16_LO:
4797 case R_PPC64_ADDR16_LO_DS:
4798 case R_PPC64_ADDR24:
65f38f15 4799 case R_PPC64_ADDR32:
65f38f15
AM		 4800 case R_PPC64_UADDR16:
4801 case R_PPC64_UADDR32:
4802 case R_PPC64_UADDR64:
5bd4f169 4803 case R_PPC64_TOC:
81848ca0
AM		 4804 if (h != NULL && !info->shared)
4805 /* We may need a copy reloc. */
f5385ebf 4806 h->non_got_ref = 1;
81848ca0 4807
41bd81ab 4808 /* Don't propagate .opd relocs. */
1e2f5b6e 4809 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 4810 break;
e86ce104 4811
65f38f15
AM		 4812 /* If we are creating a shared library, and this is a reloc
4813 against a global symbol, or a non PC relative reloc
4814 against a local symbol, then we need to copy the reloc
4815 into the shared library. However, if we are linking with
4816 -Bsymbolic, we do not need to copy a reloc against a
4817 global symbol which is defined in an object we are
4818 including in the link (i.e., DEF_REGULAR is set). At
4819 this point we have not seen all the input files, so it is
4820 possible that DEF_REGULAR is not set now but will be set
4821 later (it is never cleared). In case of a weak definition,
4822 DEF_REGULAR may be cleared later by a strong definition in
4823 a shared library. We account for that possibility below by
f4656909 4824 storing information in the dyn_relocs field of the hash
65f38f15
AM		 4825 table entry. A similar situation occurs when creating
4826 shared libraries and symbol visibility changes render the
4827 symbol local.
4828
4829 If on the other hand, we are creating an executable, we
4830 may need to keep relocations for symbols satisfied by a
4831 dynamic library if we manage to avoid copy relocs for the
4832 symbol. */
411e1bfb 4833 dodyn:
65f38f15 4834 if ((info->shared
411e1bfb 4835 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM		 4836 || (h != NULL
4837 && (! info->symbolic
4838 || h->root.type == bfd_link_hash_defweak
f5385ebf 4839 || !h->def_regular))))
f4656909
AM		 4840 || (ELIMINATE_COPY_RELOCS
4841 && !info->shared
65f38f15
AM		 4842 && h != NULL
4843 && (h->root.type == bfd_link_hash_defweak
f5385ebf 4844 || !h->def_regular)))
5bd4f169 4845 {
ec338859
AM		 4846 struct ppc_dyn_relocs *p;
4847 struct ppc_dyn_relocs **head;
4848
65f38f15
AM		 4849 /* We must copy these reloc types into the output file.
4850 Create a reloc section in dynobj and make room for
4851 this reloc. */
5bd4f169
AM		 4852 if (sreloc == NULL)
4853 {
4854 const char *name;
65f38f15 4855 bfd *dynobj;
5bd4f169
AM		 4856
4857 name = (bfd_elf_string_from_elf_section
4858 (abfd,
4859 elf_elfheader (abfd)->e_shstrndx,
4860 elf_section_data (sec)->rel_hdr.sh_name));
4861 if (name == NULL)
b34976b6 4862 return FALSE;
5bd4f169 4863
0112cd26 4864 if (! CONST_STRNEQ (name, ".rela")
65f38f15
AM		 4865 || strcmp (bfd_get_section_name (abfd, sec),
4866 name + 5) != 0)
4867 {
4868 (*_bfd_error_handler)
d003868e
AM		 4869 (_("%B: bad relocation section name `%s\'"),
4870 abfd, name);
5d1634d7 4871 bfd_set_error (bfd_error_bad_value);
65f38f15
AM		 4872 }
4873
65f38f15 4874 dynobj = htab->elf.dynobj;
5bd4f169
AM		 4875 sreloc = bfd_get_section_by_name (dynobj, name);
4876 if (sreloc == NULL)
4877 {
4878 flagword flags;
4879
5bd4f169 4880 flags = (SEC_HAS_CONTENTS | SEC_READONLY
77623a34
AM		 4881 | SEC_IN_MEMORY | SEC_LINKER_CREATED
4882 | SEC_ALLOC | SEC_LOAD);
3496cb2a
L		 4883 sreloc = bfd_make_section_with_flags (dynobj,
4884 name,
4885 flags);
5bd4f169 4886 if (sreloc == NULL
65f38f15 4887 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 4888 return FALSE;
5bd4f169 4889 }
65f38f15 4890 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM		 4891 }
4892
65f38f15
AM		 4893 /* If this is a global symbol, we count the number of
4894 relocations we need for this symbol. */
4895 if (h != NULL)
4896 {
ec338859 4897 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM		 4898 }
4899 else
4900 {
ec338859
AM		 4901 /* Track dynamic relocs needed for local syms too.
4902 We really need local syms available to do this
4903 easily. Oh well. */
4904
4905 asection *s;
6edfbbad
DJ		 4906 void *vpp;
4907
ec338859
AM		 4908 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4909 sec, r_symndx);
4910 if (s == NULL)
b34976b6 4911 return FALSE;
ec338859 4912
6edfbbad
DJ		 4913 vpp = &elf_section_data (s)->local_dynrel;
4914 head = (struct ppc_dyn_relocs **) vpp;
65f38f15 4915 }
ec338859
AM		 4916
4917 p = *head;
4918 if (p == NULL || p->sec != sec)
4919 {
4ce794b7 4920 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4921 if (p == NULL)
b34976b6 4922 return FALSE;
ec338859
AM		 4923 p->next = *head;
4924 *head = p;
4925 p->sec = sec;
4926 p->count = 0;
4927 p->pc_count = 0;
4928 }
4929
4930 p->count += 1;
411e1bfb 4931 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4932 p->pc_count += 1;
65f38f15 4933 }
5bd4f169 4934 break;
65f38f15
AM		 4935
4936 default:
96e0dda4 4937 break;
5bd4f169
AM		 4938 }
4939 }
4940
b34976b6 4941 return TRUE;
5bd4f169
AM		 4942}
4943
8387904d
AM		 4944/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
4945 of the code entry point, and its section. */
4946
4947static bfd_vma
4948opd_entry_value (asection *opd_sec,
4949 bfd_vma offset,
4950 asection **code_sec,
4951 bfd_vma *code_off)
4952{
4953 bfd *opd_bfd = opd_sec->owner;
8860955f 4954 Elf_Internal_Rela *relocs;
8387904d 4955 Elf_Internal_Rela *lo, *hi, *look;
645ea6a9 4956 bfd_vma val;
8387904d 4957
4b85d634
AM		 4958 /* No relocs implies we are linking a --just-symbols object. */
4959 if (opd_sec->reloc_count == 0)
4960 {
4961 bfd_vma val;
4962
4963 if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8))
4964 return (bfd_vma) -1;
3b36f7e6 4965
4b85d634
AM		 4966 if (code_sec != NULL)
4967 {
4968 asection *sec, *likely = NULL;
4969 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
4970 if (sec->vma <= val
4971 && (sec->flags & SEC_LOAD) != 0
4972 && (sec->flags & SEC_ALLOC) != 0)
4973 likely = sec;
4974 if (likely != NULL)
4975 {
4976 *code_sec = likely;
4977 if (code_off != NULL)
4978 *code_off = val - likely->vma;
4979 }
4980 }
4981 return val;
4982 }
4983
0c8d6e5c 4984 BFD_ASSERT (is_ppc64_elf (opd_bfd));
0ffa91dd 4985
8860955f
AM		 4986 relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
4987 if (relocs == NULL)
4988 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
645ea6a9 4989
8387904d 4990 /* Go find the opd reloc at the sym address. */
8860955f 4991 lo = relocs;
8387904d
AM		 4992 BFD_ASSERT (lo != NULL);
4993 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
645ea6a9 4994 val = (bfd_vma) -1;
8387904d
AM		 4995 while (lo < hi)
4996 {
4997 look = lo + (hi - lo) / 2;
4998 if (look->r_offset < offset)
4999 lo = look + 1;
5000 else if (look->r_offset > offset)
5001 hi = look;
5002 else
5003 {
0ffa91dd
NC		 5004 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd);
5005
8387904d
AM		 5006 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
5007 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
5008 {
5009 unsigned long symndx = ELF64_R_SYM (look->r_info);
8387904d
AM		 5010 asection *sec;
5011
5012 if (symndx < symtab_hdr->sh_info)
5013 {
5014 Elf_Internal_Sym *sym;
5015
5016 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
5017 if (sym == NULL)
5018 {
5019 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
5020 symtab_hdr->sh_info,
5021 0, NULL, NULL, NULL);
5022 if (sym == NULL)
645ea6a9 5023 break;
8387904d
AM		 5024 symtab_hdr->contents = (bfd_byte *) sym;
5025 }
5026
5027 sym += symndx;
5028 val = sym->st_value;
5029 sec = NULL;
5030 if ((sym->st_shndx != SHN_UNDEF
5031 && sym->st_shndx < SHN_LORESERVE)
5032 || sym->st_shndx > SHN_HIRESERVE)
5033 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
5034 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
5035 }
5036 else
5037 {
5038 struct elf_link_hash_entry **sym_hashes;
5039 struct elf_link_hash_entry *rh;
5040
5041 sym_hashes = elf_sym_hashes (opd_bfd);
5042 rh = sym_hashes[symndx - symtab_hdr->sh_info];
5043 while (rh->root.type == bfd_link_hash_indirect
5044 || rh->root.type == bfd_link_hash_warning)
5045 rh = ((struct elf_link_hash_entry *) rh->root.u.i.link);
5046 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
5047 || rh->root.type == bfd_link_hash_defweak);
5048 val = rh->root.u.def.value;
5049 sec = rh->root.u.def.section;
5050 }
5051 val += look->r_addend;
5052 if (code_off != NULL)
5053 *code_off = val;
5054 if (code_sec != NULL)
5055 *code_sec = sec;
5056 if (sec != NULL && sec->output_section != NULL)
5057 val += sec->output_section->vma + sec->output_offset;
8387904d
AM		 5058 }
5059 break;
5060 }
5061 }
645ea6a9 5062
645ea6a9 5063 return val;
8387904d
AM		 5064}
5065
74f0fb50
AM		 5066/* Mark all our entry sym sections, both opd and code section. */
5067
5068static void
5069ppc64_elf_gc_keep (struct bfd_link_info *info)
5070{
5071 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5072 struct bfd_sym_chain *sym;
5073
5074 for (sym = info->gc_sym_list; sym != NULL; sym = sym->next)
5075 {
5076 struct ppc_link_hash_entry *eh;
5077 asection *sec;
5078
5079 eh = (struct ppc_link_hash_entry *)
5080 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
5081 if (eh == NULL)
5082 continue;
5083 if (eh->elf.root.type != bfd_link_hash_defined
5084 && eh->elf.root.type != bfd_link_hash_defweak)
5085 continue;
5086
5087 if (eh->is_func_descriptor
5088 && (eh->oh->elf.root.type == bfd_link_hash_defined
5089 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5090 {
5091 sec = eh->oh->elf.root.u.def.section;
5092 sec->flags |= SEC_KEEP;
5093 }
5094 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5095 && opd_entry_value (eh->elf.root.u.def.section,
5096 eh->elf.root.u.def.value,
5097 &sec, NULL) != (bfd_vma) -1)
5098 sec->flags |= SEC_KEEP;
5099
5100 sec = eh->elf.root.u.def.section;
5101 sec->flags |= SEC_KEEP;
5102 }
5103}
5104
64d03ab5
AM		 5105/* Mark sections containing dynamically referenced symbols. When
5106 building shared libraries, we must assume that any visible symbol is
5107 referenced. */
5108
5109static bfd_boolean
5110ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
5111{
5112 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5113 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
5114
5115 if (eh->elf.root.type == bfd_link_hash_warning)
5116 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
5117
5118 /* Dynamic linking info is on the func descriptor sym. */
5119 if (eh->oh != NULL
5120 && eh->oh->is_func_descriptor
5121 && (eh->oh->elf.root.type == bfd_link_hash_defined
5122 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5123 eh = eh->oh;
5124
5125 if ((eh->elf.root.type == bfd_link_hash_defined
5126 || eh->elf.root.type == bfd_link_hash_defweak)
5127 && (eh->elf.ref_dynamic
5128 || (!info->executable
5129 && eh->elf.def_regular
5130 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
5131 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN)))
5132 {
5133 asection *code_sec;
5134
5135 eh->elf.root.u.def.section->flags |= SEC_KEEP;
5136
5137 /* Function descriptor syms cause the associated
5138 function code sym section to be marked. */
5139 if (eh->is_func_descriptor
5140 && (eh->oh->elf.root.type == bfd_link_hash_defined
5141 || eh->oh->elf.root.type == bfd_link_hash_defweak))
5142 eh->oh->elf.root.u.def.section->flags |= SEC_KEEP;
5143 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5144 && opd_entry_value (eh->elf.root.u.def.section,
5145 eh->elf.root.u.def.value,
5146 &code_sec, NULL) != (bfd_vma) -1)
5147 code_sec->flags |= SEC_KEEP;
5148 }
5149
5150 return TRUE;
5151}
5152
5bd4f169
AM		 5153/* Return the section that should be marked against GC for a given
5154 relocation. */
5155
5156static asection *
4ce794b7 5157ppc64_elf_gc_mark_hook (asection *sec,
74f0fb50 5158 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4ce794b7
AM		 5159 Elf_Internal_Rela *rel,
5160 struct elf_link_hash_entry *h,
5161 Elf_Internal_Sym *sym)
5bd4f169 5162{
ccfa59ea
AM		 5163 asection *rsec;
5164
ccfa59ea
AM		 5165 /* Syms return NULL if we're marking .opd, so we avoid marking all
5166 function sections, as all functions are referenced in .opd. */
5167 rsec = NULL;
5168 if (get_opd_info (sec) != NULL)
5169 return rsec;
1e2f5b6e 5170
5bd4f169
AM		 5171 if (h != NULL)
5172 {
04c9666a 5173 enum elf_ppc64_reloc_type r_type;
ccfa59ea 5174 struct ppc_link_hash_entry *eh;
a33d1f77 5175
4ce794b7 5176 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 5177 switch (r_type)
5bd4f169
AM		 5178 {
5179 case R_PPC64_GNU_VTINHERIT:
5180 case R_PPC64_GNU_VTENTRY:
5181 break;
5182
5183 default:
5184 switch (h->root.type)
5185 {
5186 case bfd_link_hash_defined:
5187 case bfd_link_hash_defweak:
ccfa59ea 5188 eh = (struct ppc_link_hash_entry *) h;
c4f68ce3
AM		 5189 if (eh->oh != NULL
5190 && eh->oh->is_func_descriptor
5191 && (eh->oh->elf.root.type == bfd_link_hash_defined
5192 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea 5193 eh = eh->oh;
1e2f5b6e
AM		 5194
5195 /* Function descriptor syms cause the associated
5196 function code sym section to be marked. */
c4f68ce3
AM		 5197 if (eh->is_func_descriptor
5198 && (eh->oh->elf.root.type == bfd_link_hash_defined
5199 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea
AM		 5200 {
5201 /* They also mark their opd section. */
74f0fb50 5202 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea
AM		 5203
5204 rsec = eh->oh->elf.root.u.def.section;
5205 }
8387904d
AM		 5206 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5207 && opd_entry_value (eh->elf.root.u.def.section,
5208 eh->elf.root.u.def.value,
5209 &rsec, NULL) != (bfd_vma) -1)
74f0fb50 5210 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 5211 else
1e2f5b6e
AM		 5212 rsec = h->root.u.def.section;
5213 break;
5bd4f169
AM		 5214
5215 case bfd_link_hash_common:
1e2f5b6e
AM		 5216 rsec = h->root.u.c.p->section;
5217 break;
5bd4f169
AM		 5218
5219 default:
5220 break;
5221 }
5222 }
5223 }
5224 else
5225 {
74f0fb50 5226 struct _opd_sec_data *opd;
1e2f5b6e
AM		 5227
5228 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
74f0fb50
AM		 5229 opd = get_opd_info (rsec);
5230 if (opd != NULL && opd->func_sec != NULL)
ccfa59ea 5231 {
74f0fb50 5232 rsec->gc_mark = 1;
ccfa59ea 5233
74f0fb50 5234 rsec = opd->func_sec[(sym->st_value + rel->r_addend) / 8];
ccfa59ea 5235 }
5bd4f169
AM		 5236 }
5237
1e2f5b6e 5238 return rsec;
5bd4f169
AM		 5239}
5240
65f38f15
AM		 5241/* Update the .got, .plt. and dynamic reloc reference counts for the
5242 section being removed. */
5bd4f169 5243
b34976b6 5244static bfd_boolean
4ce794b7
AM		 5245ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5246 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 5247{
411e1bfb 5248 struct ppc_link_hash_table *htab;
5bd4f169
AM		 5249 Elf_Internal_Shdr *symtab_hdr;
5250 struct elf_link_hash_entry **sym_hashes;
411e1bfb 5251 struct got_entry **local_got_ents;
5bd4f169 5252 const Elf_Internal_Rela *rel, *relend;
5bd4f169 5253
7dda2462
TG		 5254 if (info->relocatable)
5255 return TRUE;
5256
680a3378
AM		 5257 if ((sec->flags & SEC_ALLOC) == 0)
5258 return TRUE;
5259
ec338859
AM		 5260 elf_section_data (sec)->local_dynrel = NULL;
5261
411e1bfb 5262 htab = ppc_hash_table (info);
0ffa91dd 5263 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169 5264 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 5265 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 5266
5267 relend = relocs + sec->reloc_count;
5268 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 5269 {
5270 unsigned long r_symndx;
04c9666a 5271 enum elf_ppc64_reloc_type r_type;
58ac9f71 5272 struct elf_link_hash_entry *h = NULL;
411e1bfb 5273 char tls_type = 0;
5bd4f169 5274
a33d1f77 5275 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 5276 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 5277 if (r_symndx >= symtab_hdr->sh_info)
5278 {
5279 struct ppc_link_hash_entry *eh;
5280 struct ppc_dyn_relocs **pp;
5281 struct ppc_dyn_relocs *p;
5282
5283 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3eb128b2
AM		 5284 while (h->root.type == bfd_link_hash_indirect
5285 || h->root.type == bfd_link_hash_warning)
5286 h = (struct elf_link_hash_entry *) h->root.u.i.link;
58ac9f71
AM		 5287 eh = (struct ppc_link_hash_entry *) h;
5288
5289 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5290 if (p->sec == sec)
5291 {
5292 /* Everything must go for SEC. */
5293 *pp = p->next;
5294 break;
5295 }
5296 }
5297
a33d1f77
AM		 5298 switch (r_type)
5299 {
411e1bfb
AM		 5300 case R_PPC64_GOT_TLSLD16:
5301 case R_PPC64_GOT_TLSLD16_LO:
5302 case R_PPC64_GOT_TLSLD16_HI:
5303 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 5304 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5305 goto dogot;
5306
5307 case R_PPC64_GOT_TLSGD16:
5308 case R_PPC64_GOT_TLSGD16_LO:
5309 case R_PPC64_GOT_TLSGD16_HI:
5310 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5311 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5312 goto dogot;
5313
5314 case R_PPC64_GOT_TPREL16_DS:
5315 case R_PPC64_GOT_TPREL16_LO_DS:
5316 case R_PPC64_GOT_TPREL16_HI:
5317 case R_PPC64_GOT_TPREL16_HA:
5318 tls_type = TLS_TLS | TLS_TPREL;
5319 goto dogot;
5320
5321 case R_PPC64_GOT_DTPREL16_DS:
5322 case R_PPC64_GOT_DTPREL16_LO_DS:
5323 case R_PPC64_GOT_DTPREL16_HI:
5324 case R_PPC64_GOT_DTPREL16_HA:
5325 tls_type = TLS_TLS | TLS_DTPREL;
5326 goto dogot;
5327
a33d1f77
AM		 5328 case R_PPC64_GOT16:
5329 case R_PPC64_GOT16_DS:
5330 case R_PPC64_GOT16_HA:
5331 case R_PPC64_GOT16_HI:
5332 case R_PPC64_GOT16_LO:
5333 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 5334 dogot:
5335 {
5336 struct got_entry *ent;
5337
58ac9f71
AM		 5338 if (h != NULL)
5339 ent = h->got.glist;
411e1bfb
AM		 5340 else
5341 ent = local_got_ents[r_symndx];
5342
5343 for (; ent != NULL; ent = ent->next)
5344 if (ent->addend == rel->r_addend
e717da7e 5345 && ent->owner == abfd
411e1bfb
AM		 5346 && ent->tls_type == tls_type)
5347 break;
5348 if (ent == NULL)
5349 abort ();
5350 if (ent->got.refcount > 0)
5351 ent->got.refcount -= 1;
5352 }
a33d1f77 5353 break;
65f38f15 5354
a33d1f77
AM		 5355 case R_PPC64_PLT16_HA:
5356 case R_PPC64_PLT16_HI:
5357 case R_PPC64_PLT16_LO:
5358 case R_PPC64_PLT32:
5359 case R_PPC64_PLT64:
721956f4
AM		 5360 case R_PPC64_REL14:
5361 case R_PPC64_REL14_BRNTAKEN:
5362 case R_PPC64_REL14_BRTAKEN:
5d1634d7 5363 case R_PPC64_REL24:
58ac9f71 5364 if (h != NULL)
5d1634d7 5365 {
411e1bfb
AM		 5366 struct plt_entry *ent;
5367
411e1bfb
AM		 5368 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5369 if (ent->addend == rel->r_addend)
5370 break;
5371 if (ent == NULL)
5372 abort ();
5373 if (ent->plt.refcount > 0)
5374 ent->plt.refcount -= 1;
5d1634d7 5375 }
e86ce104 5376 break;
5d1634d7 5377
a33d1f77
AM		 5378 default:
5379 break;
5380 }
5381 }
b34976b6 5382 return TRUE;
5bd4f169
AM		 5383}
5384
deb0e272
AM		 5385/* The maximum size of .sfpr. */
5386#define SFPR_MAX (218*4)
5387
5388struct sfpr_def_parms
5389{
699733f6
AM		 5390 const char name[12];
5391 unsigned char lo, hi;
deb0e272
AM		 5392 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
5393 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
5394};
5395
5396/* Auto-generate _save*, _rest* functions in .sfpr. */
5397
5398static unsigned int
5399sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
5400{
5401 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5402 unsigned int i;
5403 size_t len = strlen (parm->name);
5404 bfd_boolean writing = FALSE;
699733f6 5405 char sym[16];
deb0e272
AM		 5406
5407 memcpy (sym, parm->name, len);
5408 sym[len + 2] = 0;
5409
5410 for (i = parm->lo; i <= parm->hi; i++)
5411 {
5412 struct elf_link_hash_entry *h;
5413
5414 sym[len + 0] = i / 10 + '0';
5415 sym[len + 1] = i % 10 + '0';
5416 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
5417 if (h != NULL
f5385ebf 5418 && !h->def_regular)
deb0e272
AM		 5419 {
5420 h->root.type = bfd_link_hash_defined;
5421 h->root.u.def.section = htab->sfpr;
5422 h->root.u.def.value = htab->sfpr->size;
5423 h->type = STT_FUNC;
f5385ebf 5424 h->def_regular = 1;
deb0e272
AM		 5425 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
5426 writing = TRUE;
5427 if (htab->sfpr->contents == NULL)
5428 {
5429 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
5430 if (htab->sfpr->contents == NULL)
5431 return FALSE;
5432 }
5433 }
5434 if (writing)
5435 {
5436 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
5437 if (i != parm->hi)
5438 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
5439 else
5440 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
5441 htab->sfpr->size = p - htab->sfpr->contents;
5442 }
5443 }
5444
5445 return TRUE;
5446}
5447
5448static bfd_byte *
5449savegpr0 (bfd *abfd, bfd_byte *p, int r)
5450{
5451 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5452 return p + 4;
5453}
5454
5455static bfd_byte *
5456savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
5457{
5458 p = savegpr0 (abfd, p, r);
5459 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5460 p = p + 4;
5461 bfd_put_32 (abfd, BLR, p);
5462 return p + 4;
5463}
5464
5465static bfd_byte *
5466restgpr0 (bfd *abfd, bfd_byte *p, int r)
5467{
5468 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5469 return p + 4;
5470}
5471
5472static bfd_byte *
5473restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
5474{
5475 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5476 p = p + 4;
5477 p = restgpr0 (abfd, p, r);
5478 bfd_put_32 (abfd, MTLR_R0, p);
5479 p = p + 4;
5480 if (r == 29)
5481 {
5482 p = restgpr0 (abfd, p, 30);
5483 p = restgpr0 (abfd, p, 31);
5484 }
5485 bfd_put_32 (abfd, BLR, p);
5486 return p + 4;
5487}
5488
5489static bfd_byte *
5490savegpr1 (bfd *abfd, bfd_byte *p, int r)
5491{
5492 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5493 return p + 4;
5494}
5495
5496static bfd_byte *
5497savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
5498{
5499 p = savegpr1 (abfd, p, r);
5500 bfd_put_32 (abfd, BLR, p);
5501 return p + 4;
5502}
5503
5504static bfd_byte *
5505restgpr1 (bfd *abfd, bfd_byte *p, int r)
5506{
5507 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5508 return p + 4;
5509}
5510
5511static bfd_byte *
5512restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
5513{
5514 p = restgpr1 (abfd, p, r);
5515 bfd_put_32 (abfd, BLR, p);
5516 return p + 4;
5517}
5518
5519static bfd_byte *
5520savefpr (bfd *abfd, bfd_byte *p, int r)
5521{
5522 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5523 return p + 4;
5524}
5525
5526static bfd_byte *
5527savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
5528{
5529 p = savefpr (abfd, p, r);
5530 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5531 p = p + 4;
5532 bfd_put_32 (abfd, BLR, p);
5533 return p + 4;
5534}
5535
5536static bfd_byte *
5537restfpr (bfd *abfd, bfd_byte *p, int r)
5538{
5539 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5540 return p + 4;
5541}
5542
5543static bfd_byte *
5544restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
5545{
5546 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5547 p = p + 4;
5548 p = restfpr (abfd, p, r);
5549 bfd_put_32 (abfd, MTLR_R0, p);
5550 p = p + 4;
5551 if (r == 29)
5552 {
5553 p = restfpr (abfd, p, 30);
5554 p = restfpr (abfd, p, 31);
5555 }
5556 bfd_put_32 (abfd, BLR, p);
5557 return p + 4;
5558}
5559
5560static bfd_byte *
5561savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
5562{
5563 p = savefpr (abfd, p, r);
5564 bfd_put_32 (abfd, BLR, p);
5565 return p + 4;
5566}
5567
5568static bfd_byte *
5569restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
5570{
5571 p = restfpr (abfd, p, r);
5572 bfd_put_32 (abfd, BLR, p);
5573 return p + 4;
5574}
5575
5576static bfd_byte *
5577savevr (bfd *abfd, bfd_byte *p, int r)
5578{
5579 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5580 p = p + 4;
5581 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
5582 return p + 4;
5583}
5584
5585static bfd_byte *
5586savevr_tail (bfd *abfd, bfd_byte *p, int r)
5587{
5588 p = savevr (abfd, p, r);
5589 bfd_put_32 (abfd, BLR, p);
5590 return p + 4;
5591}
5592
5593static bfd_byte *
5594restvr (bfd *abfd, bfd_byte *p, int r)
5595{
5596 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5597 p = p + 4;
5598 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
5599 return p + 4;
5600}
5601
5602static bfd_byte *
5603restvr_tail (bfd *abfd, bfd_byte *p, int r)
5604{
5605 p = restvr (abfd, p, r);
5606 bfd_put_32 (abfd, BLR, p);
5607 return p + 4;
5608}
5609
e86ce104
AM		 5610/* Called via elf_link_hash_traverse to transfer dynamic linking
5611 information on function code symbol entries to their corresponding
5612 function descriptor symbol entries. */
deb0e272 5613
b34976b6 5614static bfd_boolean
4ce794b7 5615func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5616{
e86ce104 5617 struct bfd_link_info *info;
65f38f15 5618 struct ppc_link_hash_table *htab;
411e1bfb 5619 struct plt_entry *ent;
50bc7936
AM		 5620 struct ppc_link_hash_entry *fh;
5621 struct ppc_link_hash_entry *fdh;
5622 bfd_boolean force_local;
5bd4f169 5623
50bc7936
AM		 5624 fh = (struct ppc_link_hash_entry *) h;
5625 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 5626 return TRUE;
e86ce104 5627
50bc7936
AM		 5628 if (fh->elf.root.type == bfd_link_hash_warning)
5629 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 5630
4ce794b7 5631 info = inf;
65f38f15 5632 htab = ppc_hash_table (info);
5bd4f169 5633
c09bdfe5
AM		 5634 /* Resolve undefined references to dot-symbols as the value
5635 in the function descriptor, if we have one in a regular object.
5636 This is to satisfy cases like ".quad .foo". Calls to functions
5637 in dynamic objects are handled elsewhere. */
5638 if (fh->elf.root.type == bfd_link_hash_undefweak
5639 && fh->was_undefined
5640 && (fh->oh->elf.root.type == bfd_link_hash_defined
5641 || fh->oh->elf.root.type == bfd_link_hash_defweak)
5642 && get_opd_info (fh->oh->elf.root.u.def.section) != NULL
5643 && opd_entry_value (fh->oh->elf.root.u.def.section,
5644 fh->oh->elf.root.u.def.value,
5645 &fh->elf.root.u.def.section,
5646 &fh->elf.root.u.def.value) != (bfd_vma) -1)
5647 {
5648 fh->elf.root.type = fh->oh->elf.root.type;
f5385ebf 5649 fh->elf.forced_local = 1;
2b953679
AM		 5650 fh->elf.def_regular = fh->oh->elf.def_regular;
5651 fh->elf.def_dynamic = fh->oh->elf.def_dynamic;
c09bdfe5
AM		 5652 }
5653
e86ce104
AM		 5654 /* If this is a function code symbol, transfer dynamic linking
5655 information to the function descriptor symbol. */
50bc7936 5656 if (!fh->is_func)
b34976b6 5657 return TRUE;
e86ce104 5658
50bc7936 5659 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 5660 if (ent->plt.refcount > 0)
5661 break;
50bc7936
AM		 5662 if (ent == NULL
5663 || fh->elf.root.root.string[0] != '.'
5664 || fh->elf.root.root.string[1] == '\0')
5665 return TRUE;
5bd4f169 5666
50bc7936
AM		 5667 /* Find the corresponding function descriptor symbol. Create it
5668 as undefined if necessary. */
5bd4f169 5669
50bc7936
AM		 5670 fdh = get_fdh (fh, htab);
5671 if (fdh != NULL)
5672 while (fdh->elf.root.type == bfd_link_hash_indirect
5673 || fdh->elf.root.type == bfd_link_hash_warning)
5674 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 5675
50bc7936
AM		 5676 if (fdh == NULL
5677 && info->shared
5678 && (fh->elf.root.type == bfd_link_hash_undefined
5679 || fh->elf.root.type == bfd_link_hash_undefweak))
5680 {
908b32fc 5681 fdh = make_fdh (info, fh);
bb700d78
AM		 5682 if (fdh == NULL)
5683 return FALSE;
50bc7936 5684 }
648cca2c 5685
908b32fc 5686 /* Fake function descriptors are made undefweak. If the function
433817dd
AM		 5687 code symbol is strong undefined, make the fake sym the same.
5688 If the function code symbol is defined, then force the fake
5689 descriptor local; We can't support overriding of symbols in a
5690 shared library on a fake descriptor. */
908b32fc
AM		 5691
5692 if (fdh != NULL
5693 && fdh->fake
433817dd 5694 && fdh->elf.root.type == bfd_link_hash_undefweak)
908b32fc 5695 {
433817dd
AM		 5696 if (fh->elf.root.type == bfd_link_hash_undefined)
5697 {
5698 fdh->elf.root.type = bfd_link_hash_undefined;
5699 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
5700 }
5701 else if (fh->elf.root.type == bfd_link_hash_defined
5702 || fh->elf.root.type == bfd_link_hash_defweak)
5703 {
5704 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
5705 }
908b32fc
AM		 5706 }
5707
50bc7936 5708 if (fdh != NULL
f5385ebf 5709 && !fdh->elf.forced_local
50bc7936 5710 && (info->shared
f5385ebf
AM		 5711 || fdh->elf.def_dynamic
5712 || fdh->elf.ref_dynamic
50bc7936
AM		 5713 || (fdh->elf.root.type == bfd_link_hash_undefweak
5714 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
5715 {
5716 if (fdh->elf.dynindx == -1)
c152c796 5717 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936 5718 return FALSE;
f5385ebf
AM		 5719 fdh->elf.ref_regular |= fh->elf.ref_regular;
5720 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
5721 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
5722 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
50bc7936 5723 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 5724 {
40d16e0b 5725 move_plt_plist (fh, fdh);
f5385ebf 5726 fdh->elf.needs_plt = 1;
e86ce104 5727 }
50bc7936 5728 fdh->is_func_descriptor = 1;
34814b9f
AM		 5729 fdh->oh = fh;
5730 fh->oh = fdh;
e86ce104
AM		 5731 }
5732
50bc7936
AM		 5733 /* Now that the info is on the function descriptor, clear the
5734 function code sym info. Any function code syms for which we
5735 don't have a definition in a regular file, we force local.
5736 This prevents a shared library from exporting syms that have
5737 been imported from another library. Function code syms that
5738 are really in the library we must leave global to prevent the
5739 linker dragging in a definition from a static library. */
93f3fa99
AM		 5740 force_local = (!fh->elf.def_regular
5741 || fdh == NULL
5742 || !fdh->elf.def_regular
5743 || fdh->elf.forced_local);
50bc7936
AM		 5744 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
5745
b34976b6 5746 return TRUE;
e86ce104 5747}
40b8271b 5748
e86ce104 5749/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 5750 this hook to a) provide some gcc support functions, and b) transfer
5751 dynamic linking information gathered so far on function code symbol
5752 entries, to their corresponding function descriptor symbol entries. */
deb0e272 5753
b34976b6 5754static bfd_boolean
4ce794b7
AM		 5755ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
5756 struct bfd_link_info *info)
e86ce104
AM		 5757{
5758 struct ppc_link_hash_table *htab;
82bd7b59 5759 unsigned int i;
deb0e272
AM		 5760 const struct sfpr_def_parms funcs[] =
5761 {
5762 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
5763 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
5764 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
5765 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
5766 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
5767 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
5768 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
5769 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
5770 { "._savef", 14, 31, savefpr, savefpr1_tail },
5771 { "._restf", 14, 31, restfpr, restfpr1_tail },
5772 { "_savevr_", 20, 31, savevr, savevr_tail },
5773 { "_restvr_", 20, 31, restvr, restvr_tail }
5774 };
e86ce104
AM		 5775
5776 htab = ppc_hash_table (info);
82bd7b59
AM		 5777 if (htab->sfpr == NULL)
5778 /* We don't have any relocs. */
b34976b6 5779 return TRUE;
82bd7b59 5780
deb0e272
AM		 5781 /* Provide any missing _save* and _rest* functions. */
5782 htab->sfpr->size = 0;
5783 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
5784 if (!sfpr_define (info, &funcs[i]))
5785 return FALSE;
82bd7b59 5786
4ce794b7 5787 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 5788
eea6121a 5789 if (htab->sfpr->size == 0)
8423293d 5790 htab->sfpr->flags |= SEC_EXCLUDE;
82bd7b59 5791
b34976b6 5792 return TRUE;
e86ce104
AM		 5793}
5794
5795/* Adjust a symbol defined by a dynamic object and referenced by a
5796 regular object. The current definition is in some section of the
5797 dynamic object, but we're not including those sections. We have to
5798 change the definition to something the rest of the link can
5799 understand. */
5800
b34976b6 5801static bfd_boolean
4ce794b7
AM		 5802ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5803 struct elf_link_hash_entry *h)
e86ce104
AM		 5804{
5805 struct ppc_link_hash_table *htab;
e86ce104 5806 asection *s;
e86ce104
AM		 5807
5808 htab = ppc_hash_table (info);
5809
5810 /* Deal with function syms. */
5811 if (h->type == STT_FUNC
f5385ebf 5812 || h->needs_plt)
e86ce104
AM		 5813 {
5814 /* Clear procedure linkage table information for any symbol that
5815 won't need a .plt entry. */
411e1bfb
AM		 5816 struct plt_entry *ent;
5817 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5818 if (ent->plt.refcount > 0)
5819 break;
8387904d 5820 if (ent == NULL
9c7a29a3
AM		 5821 || SYMBOL_CALLS_LOCAL (info, h)
5822 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5823 && h->root.type == bfd_link_hash_undefweak))
40b8271b 5824 {
411e1bfb 5825 h->plt.plist = NULL;
f5385ebf 5826 h->needs_plt = 0;
40b8271b 5827 }
5bd4f169 5828 }
bbd7ec4a 5829 else
411e1bfb 5830 h->plt.plist = NULL;
5bd4f169
AM		 5831
5832 /* If this is a weak symbol, and there is a real definition, the
5833 processor independent code will have arranged for us to see the
5834 real definition first, and we can just use the same value. */
f6e332e6 5835 if (h->u.weakdef != NULL)
5bd4f169 5836 {
f6e332e6
AM		 5837 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5838 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5839 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5840 h->root.u.def.value = h->u.weakdef->root.u.def.value;
a23b6845 5841 if (ELIMINATE_COPY_RELOCS)
f6e332e6 5842 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 5843 return TRUE;
5bd4f169
AM		 5844 }
5845
5bd4f169
AM		 5846 /* If we are creating a shared library, we must presume that the
5847 only references to the symbol are via the global offset table.
5848 For such cases we need not do anything here; the relocations will
5849 be handled correctly by relocate_section. */
5850 if (info->shared)
b34976b6 5851 return TRUE;
5bd4f169 5852
65f38f15
AM		 5853 /* If there are no references to this symbol that do not use the
5854 GOT, we don't need to generate a copy reloc. */
f5385ebf 5855 if (!h->non_got_ref)
b34976b6 5856 return TRUE;
65f38f15 5857
b186458a
JJ		 5858 /* Don't generate a copy reloc for symbols defined in the executable. */
5859 if (!h->def_dynamic || !h->ref_regular || h->def_regular)
5860 return TRUE;
5861
f4656909 5862 if (ELIMINATE_COPY_RELOCS)
65f38f15 5863 {
f4656909
AM		 5864 struct ppc_link_hash_entry * eh;
5865 struct ppc_dyn_relocs *p;
65f38f15 5866
f4656909
AM		 5867 eh = (struct ppc_link_hash_entry *) h;
5868 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5869 {
5870 s = p->sec->output_section;
5871 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5872 break;
5873 }
5874
5875 /* If we didn't find any dynamic relocs in read-only sections, then
5876 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5877 if (p == NULL)
5878 {
f5385ebf 5879 h->non_got_ref = 0;
f4656909
AM		 5880 return TRUE;
5881 }
65f38f15
AM		 5882 }
5883
5d35169e 5884 if (h->plt.plist != NULL)
97b639ba
AM		 5885 {
5886 /* We should never get here, but unfortunately there are versions
5887 of gcc out there that improperly (for this ABI) put initialized
5888 function pointers, vtable refs and suchlike in read-only
5889 sections. Allow them to proceed, but warn that this might
5890 break at runtime. */
5891 (*_bfd_error_handler)
5892 (_("copy reloc against `%s' requires lazy plt linking; "
5893 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
5894 h->root.root.string);
5895 }
5d35169e
AM		 5896
5897 /* This is a reference to a symbol defined by a dynamic object which
5898 is not a function. */
5899
909272ee
AM		 5900 if (h->size == 0)
5901 {
5902 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
5903 h->root.root.string);
5904 return TRUE;
5905 }
5906
5bd4f169
AM		 5907 /* We must allocate the symbol in our .dynbss section, which will
5908 become part of the .bss section of the executable. There will be
5909 an entry for this symbol in the .dynsym section. The dynamic
5910 object will contain position independent code, so all references
5911 from the dynamic object to this symbol will go through the global
5912 offset table. The dynamic linker will use the .dynsym entry to
5913 determine the address it must put in the global offset table, so
5914 both the dynamic object and the regular object will refer to the
5915 same memory location for the variable. */
5bd4f169 5916
04c9666a
AM		 5917 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
5918 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 5919 runtime process image. We need to remember the offset into the
5920 .rela.bss section we are going to use. */
5921 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5922 {
eea6121a 5923 htab->relbss->size += sizeof (Elf64_External_Rela);
f5385ebf 5924 h->needs_copy = 1;
5bd4f169
AM		 5925 }
5926
4ce794b7 5927 s = htab->dynbss;
5bd4f169 5928
027297b7 5929 return _bfd_elf_adjust_dynamic_copy (h, s);
5bd4f169
AM		 5930}
5931
e86ce104
AM		 5932/* If given a function descriptor symbol, hide both the function code
5933 sym and the descriptor. */
5934static void
4ce794b7
AM		 5935ppc64_elf_hide_symbol (struct bfd_link_info *info,
5936 struct elf_link_hash_entry *h,
5937 bfd_boolean force_local)
e86ce104 5938{
34814b9f 5939 struct ppc_link_hash_entry *eh;
e86ce104
AM		 5940 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
5941
34814b9f
AM		 5942 eh = (struct ppc_link_hash_entry *) h;
5943 if (eh->is_func_descriptor)
e86ce104 5944 {
34814b9f 5945 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 5946
721956f4 5947 if (fh == NULL)
d1329ca3
AM		 5948 {
5949 const char *p, *q;
5950 struct ppc_link_hash_table *htab;
5951 char save;
5952
5953 /* We aren't supposed to use alloca in BFD because on
5954 systems which do not have alloca the version in libiberty
5955 calls xmalloc, which might cause the program to crash
5956 when it runs out of memory. This function doesn't have a
5957 return status, so there's no way to gracefully return an
5958 error. So cheat. We know that string[-1] can be safely
34814b9f
AM		 5959 accessed; It's either a string in an ELF string table,
5960 or allocated in an objalloc structure. */
d1329ca3 5961
34814b9f 5962 p = eh->elf.root.root.string - 1;
d1329ca3
AM		 5963 save = *p;
5964 *(char *) p = '.';
5965 htab = ppc_hash_table (info);
34814b9f
AM		 5966 fh = (struct ppc_link_hash_entry *)
5967 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5968 *(char *) p = save;
5969
5970 /* Unfortunately, if it so happens that the string we were
5971 looking for was allocated immediately before this string,
5972 then we overwrote the string terminator. That's the only
5973 reason the lookup should fail. */
5974 if (fh == NULL)
5975 {
34814b9f
AM		 5976 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
5977 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 5978 --q, --p;
34814b9f
AM		 5979 if (q < eh->elf.root.root.string && *p == '.')
5980 fh = (struct ppc_link_hash_entry *)
5981 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5982 }
5983 if (fh != NULL)
5984 {
34814b9f
AM		 5985 eh->oh = fh;
5986 fh->oh = eh;
d1329ca3
AM		 5987 }
5988 }
e86ce104 5989 if (fh != NULL)
34814b9f 5990 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM		 5991 }
5992}
5993
411e1bfb 5994static bfd_boolean
8843416a
AM		 5995get_sym_h (struct elf_link_hash_entry **hp,
5996 Elf_Internal_Sym **symp,
5997 asection **symsecp,
5998 char **tls_maskp,
5999 Elf_Internal_Sym **locsymsp,
6000 unsigned long r_symndx,
6001 bfd *ibfd)
411e1bfb 6002{
0ffa91dd 6003 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
411e1bfb
AM		 6004
6005 if (r_symndx >= symtab_hdr->sh_info)
6006 {
6007 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
6008 struct elf_link_hash_entry *h;
6009
6010 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6011 while (h->root.type == bfd_link_hash_indirect
6012 || h->root.type == bfd_link_hash_warning)
6013 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6014
6015 if (hp != NULL)
6016 *hp = h;
6017
6018 if (symp != NULL)
6019 *symp = NULL;
6020
6021 if (symsecp != NULL)
6022 {
6023 asection *symsec = NULL;
6024 if (h->root.type == bfd_link_hash_defined
6025 || h->root.type == bfd_link_hash_defweak)
6026 symsec = h->root.u.def.section;
6027 *symsecp = symsec;
6028 }
6029
e7b938ca 6030 if (tls_maskp != NULL)
411e1bfb
AM		 6031 {
6032 struct ppc_link_hash_entry *eh;
6033
6034 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 6035 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 6036 }
6037 }
6038 else
6039 {
6040 Elf_Internal_Sym *sym;
6041 Elf_Internal_Sym *locsyms = *locsymsp;
6042
6043 if (locsyms == NULL)
6044 {
6045 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
6046 if (locsyms == NULL)
6047 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
6048 symtab_hdr->sh_info,
6049 0, NULL, NULL, NULL);
6050 if (locsyms == NULL)
6051 return FALSE;
6052 *locsymsp = locsyms;
6053 }
6054 sym = locsyms + r_symndx;
6055
6056 if (hp != NULL)
6057 *hp = NULL;
6058
6059 if (symp != NULL)
6060 *symp = sym;
6061
6062 if (symsecp != NULL)
6063 {
6064 asection *symsec = NULL;
6065 if ((sym->st_shndx != SHN_UNDEF
6066 && sym->st_shndx < SHN_LORESERVE)
6067 || sym->st_shndx > SHN_HIRESERVE)
6068 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
6069 *symsecp = symsec;
6070 }
6071
e7b938ca 6072 if (tls_maskp != NULL)
411e1bfb
AM		 6073 {
6074 struct got_entry **lgot_ents;
e7b938ca 6075 char *tls_mask;
411e1bfb 6076
e7b938ca 6077 tls_mask = NULL;
411e1bfb
AM		 6078 lgot_ents = elf_local_got_ents (ibfd);
6079 if (lgot_ents != NULL)
6080 {
e7b938ca
AM		 6081 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
6082 tls_mask = &lgot_masks[r_symndx];
411e1bfb 6083 }
e7b938ca 6084 *tls_maskp = tls_mask;
411e1bfb
AM		 6085 }
6086 }
6087 return TRUE;
6088}
6089
e7b938ca 6090/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 6091 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 6092 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 6093
6094static int
0d4792f7
AM		 6095get_tls_mask (char **tls_maskp, unsigned long *toc_symndx,
6096 Elf_Internal_Sym **locsymsp,
4ce794b7 6097 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 6098{
6099 unsigned long r_symndx;
0d4792f7 6100 int next_r;
411e1bfb
AM		 6101 struct elf_link_hash_entry *h;
6102 Elf_Internal_Sym *sym;
6103 asection *sec;
6104 bfd_vma off;
6105
6106 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 6107 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 6108 return 0;
411e1bfb 6109
e7b938ca 6110 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb 6111 || sec == NULL
7c8fe5c4 6112 || ppc64_elf_section_data (sec)->sec_type != sec_toc)
951fd09b 6113 return 1;
411e1bfb
AM		 6114
6115 /* Look inside a TOC section too. */
6116 if (h != NULL)
6117 {
6118 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
6119 off = h->root.u.def.value;
6120 }
6121 else
6122 off = sym->st_value;
6123 off += rel->r_addend;
6124 BFD_ASSERT (off % 8 == 0);
7c8fe5c4
AM		 6125 r_symndx = ppc64_elf_section_data (sec)->u.t_symndx[off / 8];
6126 next_r = ppc64_elf_section_data (sec)->u.t_symndx[off / 8 + 1];
e7b938ca 6127 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 6128 return 0;
0d4792f7
AM		 6129 if (toc_symndx != NULL)
6130 *toc_symndx = r_symndx;
6131 if ((h == NULL
6132 || ((h->root.type == bfd_link_hash_defined
6133 || h->root.type == bfd_link_hash_defweak)
f5385ebf 6134 && !h->def_dynamic))
0d4792f7
AM		 6135 && (next_r == -1 || next_r == -2))
6136 return 1 - next_r;
951fd09b 6137 return 1;
411e1bfb
AM		 6138}
6139
754021d0 6140/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 6141 code for the old ABI, these will already have been done. */
754021d0
AM		 6142
6143static bfd_boolean
6144adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
6145{
6146 struct ppc_link_hash_entry *eh;
6147 asection *sym_sec;
74f0fb50 6148 struct _opd_sec_data *opd;
754021d0
AM		 6149
6150 if (h->root.type == bfd_link_hash_indirect)
6151 return TRUE;
6152
6153 if (h->root.type == bfd_link_hash_warning)
6154 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6155
6156 if (h->root.type != bfd_link_hash_defined
6157 && h->root.type != bfd_link_hash_defweak)
6158 return TRUE;
6159
6160 eh = (struct ppc_link_hash_entry *) h;
6161 if (eh->adjust_done)
6162 return TRUE;
6163
6164 sym_sec = eh->elf.root.u.def.section;
74f0fb50
AM		 6165 opd = get_opd_info (sym_sec);
6166 if (opd != NULL && opd->adjust != NULL)
754021d0 6167 {
74f0fb50 6168 long adjust = opd->adjust[eh->elf.root.u.def.value / 8];
4025353c
AM		 6169 if (adjust == -1)
6170 {
6171 /* This entry has been deleted. */
b3fac117 6172 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
81688140
AM		 6173 if (dsec == NULL)
6174 {
6175 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
6176 if (elf_discarded_section (dsec))
6177 {
b3fac117 6178 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
81688140
AM		 6179 break;
6180 }
6181 }
4025353c 6182 eh->elf.root.u.def.value = 0;
81688140 6183 eh->elf.root.u.def.section = dsec;
4025353c
AM		 6184 }
6185 else
6186 eh->elf.root.u.def.value += adjust;
754021d0
AM		 6187 eh->adjust_done = 1;
6188 }
6189 return TRUE;
6190}
6191
8c1d1bb8
AM		 6192/* Handles decrementing dynamic reloc counts for the reloc specified by
6193 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC
6194 have already been determined. */
6195
6196static bfd_boolean
6197dec_dynrel_count (bfd_vma r_info,
6198 asection *sec,
6199 struct bfd_link_info *info,
6200 Elf_Internal_Sym **local_syms,
6201 struct elf_link_hash_entry *h,
6202 asection *sym_sec)
6203{
6204 enum elf_ppc64_reloc_type r_type;
6205 struct ppc_dyn_relocs *p;
6206 struct ppc_dyn_relocs **pp;
6207
6208 /* Can this reloc be dynamic? This switch, and later tests here
6209 should be kept in sync with the code in check_relocs. */
6210 r_type = ELF64_R_TYPE (r_info);
6211 switch (r_type)
6212 {
6213 default:
6214 return TRUE;
6215
6216 case R_PPC64_TPREL16:
6217 case R_PPC64_TPREL16_LO:
6218 case R_PPC64_TPREL16_HI:
6219 case R_PPC64_TPREL16_HA:
6220 case R_PPC64_TPREL16_DS:
6221 case R_PPC64_TPREL16_LO_DS:
6222 case R_PPC64_TPREL16_HIGHER:
6223 case R_PPC64_TPREL16_HIGHERA:
6224 case R_PPC64_TPREL16_HIGHEST:
6225 case R_PPC64_TPREL16_HIGHESTA:
6226 if (!info->shared)
6227 return TRUE;
6228
6229 case R_PPC64_TPREL64:
6230 case R_PPC64_DTPMOD64:
6231 case R_PPC64_DTPREL64:
6232 case R_PPC64_ADDR64:
6233 case R_PPC64_REL30:
6234 case R_PPC64_REL32:
6235 case R_PPC64_REL64:
6236 case R_PPC64_ADDR14:
6237 case R_PPC64_ADDR14_BRNTAKEN:
6238 case R_PPC64_ADDR14_BRTAKEN:
6239 case R_PPC64_ADDR16:
6240 case R_PPC64_ADDR16_DS:
6241 case R_PPC64_ADDR16_HA:
6242 case R_PPC64_ADDR16_HI:
6243 case R_PPC64_ADDR16_HIGHER:
6244 case R_PPC64_ADDR16_HIGHERA:
6245 case R_PPC64_ADDR16_HIGHEST:
6246 case R_PPC64_ADDR16_HIGHESTA:
6247 case R_PPC64_ADDR16_LO:
6248 case R_PPC64_ADDR16_LO_DS:
6249 case R_PPC64_ADDR24:
6250 case R_PPC64_ADDR32:
6251 case R_PPC64_UADDR16:
6252 case R_PPC64_UADDR32:
6253 case R_PPC64_UADDR64:
6254 case R_PPC64_TOC:
6255 break;
6256 }
6257
6258 if (local_syms != NULL)
6259 {
6260 unsigned long r_symndx;
6261 Elf_Internal_Sym *sym;
6262 bfd *ibfd = sec->owner;
6263
6264 r_symndx = ELF64_R_SYM (r_info);
6265 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
6266 return FALSE;
6267 }
6268
6269 if ((info->shared
6270 && (MUST_BE_DYN_RELOC (r_type)
6271 || (h != NULL
6272 && (!info->symbolic
6273 || h->root.type == bfd_link_hash_defweak
6274 || !h->def_regular))))
6275 || (ELIMINATE_COPY_RELOCS
6276 && !info->shared
6277 && h != NULL
6278 && (h->root.type == bfd_link_hash_defweak
6279 || !h->def_regular)))
6280 ;
6281 else
6282 return TRUE;
6283
6284 if (h != NULL)
6285 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
8c1d1bb8 6286 else
6edfbbad 6287 {
60124e18
AM		 6288 if (sym_sec != NULL)
6289 {
6290 void *vpp = &elf_section_data (sym_sec)->local_dynrel;
6291 pp = (struct ppc_dyn_relocs **) vpp;
6292 }
6293 else
6294 {
6295 void *vpp = &elf_section_data (sec)->local_dynrel;
6296 pp = (struct ppc_dyn_relocs **) vpp;
6297 }
6298
6299 /* elf_gc_sweep may have already removed all dyn relocs associated
6300 with local syms for a given section. Don't report a dynreloc
6301 miscount. */
6302 if (*pp == NULL)
6303 return TRUE;
6edfbbad 6304 }
8c1d1bb8
AM		 6305
6306 while ((p = *pp) != NULL)
6307 {
6308 if (p->sec == sec)
6309 {
6310 if (!MUST_BE_DYN_RELOC (r_type))
6311 p->pc_count -= 1;
6312 p->count -= 1;
6313 if (p->count == 0)
6314 *pp = p->next;
6315 return TRUE;
6316 }
6317 pp = &p->next;
6318 }
6319
6320 (*_bfd_error_handler) (_("dynreloc miscount for %B, section %A"),
6321 sec->owner, sec);
6322 bfd_set_error (bfd_error_bad_value);
6323 return FALSE;
6324}
6325
754021d0
AM		 6326/* Remove unused Official Procedure Descriptor entries. Currently we
6327 only remove those associated with functions in discarded link-once
6328 sections, or weakly defined functions that have been overridden. It
6329 would be possible to remove many more entries for statically linked
6330 applications. */
6331
b34976b6 6332bfd_boolean
3f764659
JJ		 6333ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info,
6334 bfd_boolean non_overlapping)
1e2f5b6e
AM		 6335{
6336 bfd *ibfd;
754021d0 6337 bfd_boolean some_edited = FALSE;
3f764659 6338 asection *need_pad = NULL;
1e2f5b6e 6339
411e1bfb 6340 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 6341 {
6342 asection *sec;
6343 Elf_Internal_Rela *relstart, *rel, *relend;
6344 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 6345 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 6346 struct elf_link_hash_entry **sym_hashes;
6347 bfd_vma offset;
74f0fb50 6348 struct _opd_sec_data *opd;
3f764659
JJ		 6349 bfd_boolean need_edit, add_aux_fields;
6350 bfd_size_type cnt_16b = 0;
1e2f5b6e
AM		 6351
6352 sec = bfd_get_section_by_name (ibfd, ".opd");
46de2a7c 6353 if (sec == NULL || sec->size == 0)
1e2f5b6e
AM		 6354 continue;
6355
4b85d634
AM		 6356 if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS)
6357 continue;
6358
1e2f5b6e
AM		 6359 if (sec->output_section == bfd_abs_section_ptr)
6360 continue;
6361
6362 /* Look through the section relocs. */
6363 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
6364 continue;
6365
6cdc0ccc 6366 local_syms = NULL;
0ffa91dd 6367 symtab_hdr = &elf_symtab_hdr (ibfd);
1e2f5b6e
AM		 6368 sym_hashes = elf_sym_hashes (ibfd);
6369
6370 /* Read the relocations. */
4ce794b7 6371 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6372 info->keep_memory);
1e2f5b6e 6373 if (relstart == NULL)
b34976b6 6374 return FALSE;
1e2f5b6e
AM		 6375
6376 /* First run through the relocs to check they are sane, and to
6377 determine whether we need to edit this opd section. */
b34976b6 6378 need_edit = FALSE;
3f764659 6379 need_pad = sec;
1e2f5b6e
AM		 6380 offset = 0;
6381 relend = relstart + sec->reloc_count;
50bc7936 6382 for (rel = relstart; rel < relend; )
1e2f5b6e 6383 {
04c9666a 6384 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 6385 unsigned long r_symndx;
6386 asection *sym_sec;
6387 struct elf_link_hash_entry *h;
6388 Elf_Internal_Sym *sym;
6389
3f764659 6390 /* .opd contains a regular array of 16 or 24 byte entries. We're
1e2f5b6e
AM		 6391 only interested in the reloc pointing to a function entry
6392 point. */
50bc7936
AM		 6393 if (rel->r_offset != offset
6394 || rel + 1 >= relend
6395 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM		 6396 {
6397 /* If someone messes with .opd alignment then after a
6398 "ld -r" we might have padding in the middle of .opd.
6399 Also, there's nothing to prevent someone putting
6400 something silly in .opd with the assembler. No .opd
b34976b6 6401 optimization for them! */
3f764659 6402 broken_opd:
1e2f5b6e 6403 (*_bfd_error_handler)
d003868e 6404 (_("%B: .opd is not a regular array of opd entries"), ibfd);
b34976b6 6405 need_edit = FALSE;
1e2f5b6e
AM		 6406 break;
6407 }
6408
50bc7936
AM		 6409 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
6410 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
6411 {
6412 (*_bfd_error_handler)
d003868e
AM		 6413 (_("%B: unexpected reloc type %u in .opd section"),
6414 ibfd, r_type);
50bc7936
AM		 6415 need_edit = FALSE;
6416 break;
6417 }
6418
1e2f5b6e 6419 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 6420 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6421 r_symndx, ibfd))
50bc7936 6422 goto error_ret;
1e2f5b6e
AM		 6423
6424 if (sym_sec == NULL || sym_sec->owner == NULL)
6425 {
411e1bfb
AM		 6426 const char *sym_name;
6427 if (h != NULL)
6428 sym_name = h->root.root.string;
6429 else
26c61ae5
L		 6430 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
6431 sym_sec);
411e1bfb 6432
1e2f5b6e 6433 (*_bfd_error_handler)
d003868e
AM		 6434 (_("%B: undefined sym `%s' in .opd section"),
6435 ibfd, sym_name);
b34976b6 6436 need_edit = FALSE;
1e2f5b6e
AM		 6437 break;
6438 }
6439
51020317
AM		 6440 /* opd entries are always for functions defined in the
6441 current input bfd. If the symbol isn't defined in the
6442 input bfd, then we won't be using the function in this
6443 bfd; It must be defined in a linkonce section in another
6444 bfd, or is weak. It's also possible that we are
6445 discarding the function due to a linker script /DISCARD/,
6446 which we test for via the output_section. */
6447 if (sym_sec->owner != ibfd
6448 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 6449 need_edit = TRUE;
1e2f5b6e 6450
50bc7936 6451 rel += 2;
3f764659
JJ		 6452 if (rel == relend
6453 || (rel + 1 == relend && rel->r_offset == offset + 16))
6454 {
6455 if (sec->size == offset + 24)
6456 {
6457 need_pad = NULL;
6458 break;
6459 }
6460 if (rel == relend && sec->size == offset + 16)
6461 {
6462 cnt_16b++;
6463 break;
6464 }
6465 goto broken_opd;
6466 }
6467
6468 if (rel->r_offset == offset + 24)
6469 offset += 24;
6470 else if (rel->r_offset != offset + 16)
6471 goto broken_opd;
6472 else if (rel + 1 < relend
6473 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
6474 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
6475 {
6476 offset += 16;
6477 cnt_16b++;
6478 }
6479 else if (rel + 2 < relend
6480 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
6481 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
6482 {
6483 offset += 24;
6484 rel += 1;
6485 }
6486 else
6487 goto broken_opd;
1e2f5b6e
AM		 6488 }
6489
3f764659
JJ		 6490 add_aux_fields = non_overlapping && cnt_16b > 0;
6491
6492 if (need_edit || add_aux_fields)
1e2f5b6e
AM		 6493 {
6494 Elf_Internal_Rela *write_rel;
6495 bfd_byte *rptr, *wptr;
3f764659 6496 bfd_byte *new_contents = NULL;
b34976b6 6497 bfd_boolean skip;
3f764659 6498 long opd_ent_size;
74f0fb50
AM		 6499 bfd_size_type amt;
6500
6501 amt = sec->size * sizeof (long) / 8;
6502 opd = &ppc64_elf_section_data (sec)->u.opd;
6503 opd->adjust = bfd_zalloc (obfd, amt);
6504 if (opd->adjust == NULL)
6505 return FALSE;
6506 ppc64_elf_section_data (sec)->sec_type = sec_opd;
1e2f5b6e
AM		 6507
6508 /* This seems a waste of time as input .opd sections are all
6509 zeros as generated by gcc, but I suppose there's no reason
6510 this will always be so. We might start putting something in
6511 the third word of .opd entries. */
6512 if ((sec->flags & SEC_IN_MEMORY) == 0)
6513 {
eea6121a
AM		 6514 bfd_byte *loc;
6515 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 6516 {
eea6121a
AM		 6517 if (loc != NULL)
6518 free (loc);
50bc7936 6519 error_ret:
6cdc0ccc
AM		 6520 if (local_syms != NULL
6521 && symtab_hdr->contents != (unsigned char *) local_syms)
6522 free (local_syms);
6cdc0ccc
AM		 6523 if (elf_section_data (sec)->relocs != relstart)
6524 free (relstart);
b34976b6 6525 return FALSE;
6cdc0ccc 6526 }
1e2f5b6e
AM		 6527 sec->contents = loc;
6528 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6529 }
6530
6531 elf_section_data (sec)->relocs = relstart;
6532
3f764659 6533 new_contents = sec->contents;
3f764659
JJ		 6534 if (add_aux_fields)
6535 {
6536 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
6537 if (new_contents == NULL)
6538 return FALSE;
6539 need_pad = FALSE;
3f764659 6540 }
b4f4e59f
AM		 6541 wptr = new_contents;
6542 rptr = sec->contents;
3f764659 6543
1e2f5b6e 6544 write_rel = relstart;
b34976b6 6545 skip = FALSE;
1e2f5b6e 6546 offset = 0;
3f764659 6547 opd_ent_size = 0;
1e2f5b6e
AM		 6548 for (rel = relstart; rel < relend; rel++)
6549 {
50bc7936
AM		 6550 unsigned long r_symndx;
6551 asection *sym_sec;
6552 struct elf_link_hash_entry *h;
6553 Elf_Internal_Sym *sym;
6554
6555 r_symndx = ELF64_R_SYM (rel->r_info);
6556 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 6557 r_symndx, ibfd))
50bc7936
AM		 6558 goto error_ret;
6559
1e2f5b6e
AM		 6560 if (rel->r_offset == offset)
6561 {
50bc7936 6562 struct ppc_link_hash_entry *fdh = NULL;
3f764659
JJ		 6563
6564 /* See if the .opd entry is full 24 byte or
6565 16 byte (with fd_aux entry overlapped with next
6566 fd_func). */
6567 opd_ent_size = 24;
6568 if ((rel + 2 == relend && sec->size == offset + 16)
6569 || (rel + 3 < relend
6570 && rel[2].r_offset == offset + 16
6571 && rel[3].r_offset == offset + 24
6572 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
6573 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
6574 opd_ent_size = 16;
6575
4025353c
AM		 6576 if (h != NULL
6577 && h->root.root.string[0] == '.')
c4f68ce3
AM		 6578 {
6579 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
6580 ppc_hash_table (info));
6581 if (fdh != NULL
6582 && fdh->elf.root.type != bfd_link_hash_defined
6583 && fdh->elf.root.type != bfd_link_hash_defweak)
6584 fdh = NULL;
6585 }
1e2f5b6e 6586
51020317
AM		 6587 skip = (sym_sec->owner != ibfd
6588 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 6589 if (skip)
6590 {
4025353c 6591 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 6592 {
6593 /* Arrange for the function descriptor sym
6594 to be dropped. */
d6fe2dc1
AM		 6595 fdh->elf.root.u.def.value = 0;
6596 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 6597 }
74f0fb50 6598 opd->adjust[rel->r_offset / 8] = -1;
a4aa0fb7
AM		 6599 }
6600 else
1e2f5b6e
AM		 6601 {
6602 /* We'll be keeping this opd entry. */
6603
4025353c 6604 if (fdh != NULL)
1e2f5b6e 6605 {
754021d0
AM		 6606 /* Redefine the function descriptor symbol to
6607 this location in the opd section. It is
6608 necessary to update the value here rather
6609 than using an array of adjustments as we do
6610 for local symbols, because various places
6611 in the generic ELF code use the value
6612 stored in u.def.value. */
3f764659 6613 fdh->elf.root.u.def.value = wptr - new_contents;
754021d0 6614 fdh->adjust_done = 1;
1e2f5b6e 6615 }
754021d0
AM		 6616
6617 /* Local syms are a bit tricky. We could
6618 tweak them as they can be cached, but
6619 we'd need to look through the local syms
6620 for the function descriptor sym which we
6621 don't have at the moment. So keep an
6622 array of adjustments. */
74f0fb50 6623 opd->adjust[rel->r_offset / 8]
3f764659 6624 = (wptr - new_contents) - (rptr - sec->contents);
1e2f5b6e
AM		 6625
6626 if (wptr != rptr)
3f764659
JJ		 6627 memcpy (wptr, rptr, opd_ent_size);
6628 wptr += opd_ent_size;
6629 if (add_aux_fields && opd_ent_size == 16)
6630 {
6631 memset (wptr, '\0', 8);
6632 wptr += 8;
6633 }
1e2f5b6e 6634 }
3f764659
JJ		 6635 rptr += opd_ent_size;
6636 offset += opd_ent_size;
1e2f5b6e
AM		 6637 }
6638
50bc7936
AM		 6639 if (skip)
6640 {
60124e18
AM		 6641 if (!NO_OPD_RELOCS
6642 && !info->relocatable
18d944df
AM		 6643 && !dec_dynrel_count (rel->r_info, sec, info,
6644 NULL, h, sym_sec))
8c1d1bb8 6645 goto error_ret;
50bc7936
AM		 6646 }
6647 else
1e2f5b6e 6648 {
50bc7936
AM		 6649 /* We need to adjust any reloc offsets to point to the
6650 new opd entries. While we're at it, we may as well
6651 remove redundant relocs. */
74f0fb50 6652 rel->r_offset += opd->adjust[(offset - opd_ent_size) / 8];
1e2f5b6e
AM		 6653 if (write_rel != rel)
6654 memcpy (write_rel, rel, sizeof (*rel));
6655 ++write_rel;
6656 }
6657 }
6658
3f764659 6659 sec->size = wptr - new_contents;
1e2f5b6e 6660 sec->reloc_count = write_rel - relstart;
3f764659
JJ		 6661 if (add_aux_fields)
6662 {
6663 free (sec->contents);
6664 sec->contents = new_contents;
6665 }
6666
05bf9422 6667 /* Fudge the header size too, as this is used later in
cdcf6e38
AM		 6668 elf_bfd_final_link if we are emitting relocs. */
6669 elf_section_data (sec)->rel_hdr.sh_size
6670 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
6671 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
754021d0 6672 some_edited = TRUE;
1e2f5b6e 6673 }
6cdc0ccc 6674 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 6675 free (relstart);
6cdc0ccc 6676
411e1bfb
AM		 6677 if (local_syms != NULL
6678 && symtab_hdr->contents != (unsigned char *) local_syms)
6679 {
6680 if (!info->keep_memory)
6681 free (local_syms);
6682 else
6683 symtab_hdr->contents = (unsigned char *) local_syms;
6684 }
6685 }
6686
754021d0
AM		 6687 if (some_edited)
6688 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
6689
3f764659
JJ		 6690 /* If we are doing a final link and the last .opd entry is just 16 byte
6691 long, add a 8 byte padding after it. */
6692 if (need_pad != NULL && !info->relocatable)
6693 {
6694 bfd_byte *p;
6695
6696 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
6697 {
6698 BFD_ASSERT (need_pad->size > 0);
6699
6700 p = bfd_malloc (need_pad->size + 8);
6701 if (p == NULL)
6702 return FALSE;
699733f6 6703
3f764659
JJ		 6704 if (! bfd_get_section_contents (need_pad->owner, need_pad,
6705 p, 0, need_pad->size))
6706 return FALSE;
6707
6708 need_pad->contents = p;
6709 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6710 }
6711 else
6712 {
6713 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
6714 if (p == NULL)
6715 return FALSE;
6716
6717 need_pad->contents = p;
6718 }
6719
6720 memset (need_pad->contents + need_pad->size, 0, 8);
6721 need_pad->size += 8;
6722 }
6723
411e1bfb
AM		 6724 return TRUE;
6725}
6726
e1918d23 6727/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 6728
e1918d23 6729asection *
4ce794b7 6730ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb 6731{
411e1bfb
AM		 6732 struct ppc_link_hash_table *htab;
6733
411e1bfb 6734 htab = ppc_hash_table (info);
a48ebf4d
AM		 6735 if (htab->tls_get_addr != NULL)
6736 {
8387904d 6737 struct ppc_link_hash_entry *h = htab->tls_get_addr;
a48ebf4d 6738
8387904d
AM		 6739 while (h->elf.root.type == bfd_link_hash_indirect
6740 || h->elf.root.type == bfd_link_hash_warning)
6741 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
a48ebf4d
AM		 6742
6743 htab->tls_get_addr = h;
8387904d
AM		 6744
6745 if (htab->tls_get_addr_fd == NULL
6746 && h->oh != NULL
c4f68ce3
AM		 6747 && h->oh->is_func_descriptor
6748 && (h->oh->elf.root.type == bfd_link_hash_defined
6749 || h->oh->elf.root.type == bfd_link_hash_defweak))
8387904d
AM		 6750 htab->tls_get_addr_fd = h->oh;
6751 }
6752
6753 if (htab->tls_get_addr_fd != NULL)
6754 {
6755 struct ppc_link_hash_entry *h = htab->tls_get_addr_fd;
6756
6757 while (h->elf.root.type == bfd_link_hash_indirect
6758 || h->elf.root.type == bfd_link_hash_warning)
6759 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6760
6761 htab->tls_get_addr_fd = h;
a48ebf4d
AM		 6762 }
6763
e1918d23 6764 return _bfd_elf_tls_setup (obfd, info);
951fd09b 6765}
411e1bfb 6766
951fd09b
AM		 6767/* Run through all the TLS relocs looking for optimization
6768 opportunities. The linker has been hacked (see ppc64elf.em) to do
6769 a preliminary section layout so that we know the TLS segment
6770 offsets. We can't optimize earlier because some optimizations need
6771 to know the tp offset, and we need to optimize before allocating
6772 dynamic relocations. */
6773
6774bfd_boolean
4ce794b7 6775ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 6776{
6777 bfd *ibfd;
6778 asection *sec;
6779 struct ppc_link_hash_table *htab;
102890f0 6780 int pass;
951fd09b 6781
1049f94e 6782 if (info->relocatable || info->shared)
411e1bfb
AM		 6783 return TRUE;
6784
951fd09b 6785 htab = ppc_hash_table (info);
411e1bfb
AM		 6786 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6787 {
6788 Elf_Internal_Sym *locsyms = NULL;
30038c59
AM		 6789 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
6790 unsigned char *toc_ref = NULL;
411e1bfb 6791
102890f0
AM		 6792 /* Look at all the sections for this file. Make two passes over
6793 the relocs. On the first pass, mark toc entries involved
6794 with tls relocs, and check that tls relocs involved in
6795 setting up a tls_get_addr call are indeed followed by such a
6796 call. If they are not, exclude them from the optimizations
6797 done on the second pass. */
6798 for (pass = 0; pass < 2; ++pass)
6799 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6800 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
6801 {
6802 Elf_Internal_Rela *relstart, *rel, *relend;
411e1bfb 6803
102890f0
AM		 6804 /* Read the relocations. */
6805 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
6806 info->keep_memory);
6807 if (relstart == NULL)
6808 return FALSE;
411e1bfb 6809
102890f0
AM		 6810 relend = relstart + sec->reloc_count;
6811 for (rel = relstart; rel < relend; rel++)
6812 {
6813 enum elf_ppc64_reloc_type r_type;
6814 unsigned long r_symndx;
6815 struct elf_link_hash_entry *h;
6816 Elf_Internal_Sym *sym;
6817 asection *sym_sec;
6818 char *tls_mask;
6819 char tls_set, tls_clear, tls_type = 0;
6820 bfd_vma value;
6821 bfd_boolean ok_tprel, is_local;
6822 long toc_ref_index = 0;
6823 int expecting_tls_get_addr = 0;
411e1bfb 6824
102890f0
AM		 6825 r_symndx = ELF64_R_SYM (rel->r_info);
6826 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
6827 r_symndx, ibfd))
6828 {
6829 err_free_rel:
6830 if (elf_section_data (sec)->relocs != relstart)
6831 free (relstart);
6832 if (toc_ref != NULL)
6833 free (toc_ref);
6834 if (locsyms != NULL
0ffa91dd 6835 && (elf_symtab_hdr (ibfd).contents
102890f0
AM		 6836 != (unsigned char *) locsyms))
6837 free (locsyms);
6838 return FALSE;
6839 }
411e1bfb 6840
102890f0
AM		 6841 if (h != NULL)
6842 {
6843 if (h->root.type != bfd_link_hash_defined
6844 && h->root.type != bfd_link_hash_defweak)
6845 continue;
6846 value = h->root.u.def.value;
6847 }
6848 else
6849 /* Symbols referenced by TLS relocs must be of type
6850 STT_TLS. So no need for .opd local sym adjust. */
6851 value = sym->st_value;
6852
6853 ok_tprel = FALSE;
6854 is_local = FALSE;
6855 if (h == NULL
6856 || !h->def_dynamic)
6857 {
6858 is_local = TRUE;
6859 value += sym_sec->output_offset;
6860 value += sym_sec->output_section->vma;
6861 value -= htab->elf.tls_sec->vma;
6862 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
6863 < (bfd_vma) 1 << 32);
6864 }
951fd09b 6865
102890f0
AM		 6866 r_type = ELF64_R_TYPE (rel->r_info);
6867 switch (r_type)
6868 {
6869 case R_PPC64_GOT_TLSLD16:
6870 case R_PPC64_GOT_TLSLD16_LO:
6871 expecting_tls_get_addr = 1;
6872 /* Fall thru */
6873
6874 case R_PPC64_GOT_TLSLD16_HI:
6875 case R_PPC64_GOT_TLSLD16_HA:
6876 /* These relocs should never be against a symbol
6877 defined in a shared lib. Leave them alone if
6878 that turns out to be the case. */
6879 if (!is_local)
6880 continue;
411e1bfb 6881
102890f0 6882 /* LD -> LE */
411e1bfb 6883 tls_set = 0;
102890f0
AM		 6884 tls_clear = TLS_LD;
6885 tls_type = TLS_TLS | TLS_LD;
6886 break;
411e1bfb 6887
102890f0
AM		 6888 case R_PPC64_GOT_TLSGD16:
6889 case R_PPC64_GOT_TLSGD16_LO:
6890 expecting_tls_get_addr = 1;
6891 /* Fall thru */
6892
6893 case R_PPC64_GOT_TLSGD16_HI:
6894 case R_PPC64_GOT_TLSGD16_HA:
6895 if (ok_tprel)
6896 /* GD -> LE */
411e1bfb 6897 tls_set = 0;
102890f0
AM		 6898 else
6899 /* GD -> IE */
6900 tls_set = TLS_TLS | TLS_TPRELGD;
6901 tls_clear = TLS_GD;
6902 tls_type = TLS_TLS | TLS_GD;
6903 break;
6904
6905 case R_PPC64_GOT_TPREL16_DS:
6906 case R_PPC64_GOT_TPREL16_LO_DS:
6907 case R_PPC64_GOT_TPREL16_HI:
6908 case R_PPC64_GOT_TPREL16_HA:
6909 if (ok_tprel)
6910 {
6911 /* IE -> LE */
6912 tls_set = 0;
6913 tls_clear = TLS_TPREL;
6914 tls_type = TLS_TLS | TLS_TPREL;
6915 break;
6916 }
411e1bfb
AM		 6917 continue;
6918
102890f0
AM		 6919 case R_PPC64_TOC16:
6920 case R_PPC64_TOC16_LO:
6921 case R_PPC64_TLS:
6922 if (sym_sec == NULL || sym_sec != toc)
6923 continue;
6924
6925 /* Mark this toc entry as referenced by a TLS
6926 code sequence. We can do that now in the
6927 case of R_PPC64_TLS, and after checking for
6928 tls_get_addr for the TOC16 relocs. */
6929 if (toc_ref == NULL)
6930 {
6931 toc_ref = bfd_zmalloc (toc->size / 8);
6932 if (toc_ref == NULL)
6933 goto err_free_rel;
6934 }
6935 if (h != NULL)
6936 value = h->root.u.def.value;
6937 else
6938 value = sym->st_value;
6939 value += rel->r_addend;
6940 BFD_ASSERT (value < toc->size && value % 8 == 0);
6941 toc_ref_index = value / 8;
6942 if (r_type == R_PPC64_TLS)
6943 {
6944 toc_ref[toc_ref_index] = 1;
6945 continue;
6946 }
6947
6948 if (pass != 0 && toc_ref[toc_ref_index] == 0)
6949 continue;
6950
6951 tls_set = 0;
6952 tls_clear = 0;
6953 expecting_tls_get_addr = 2;
6954 break;
6955
6956 case R_PPC64_TPREL64:
6957 if (pass == 0
6958 || sec != toc
6959 || toc_ref == NULL
6960 || !toc_ref[rel->r_offset / 8])
6961 continue;
6962 if (ok_tprel)
6963 {
6964 /* IE -> LE */
6965 tls_set = TLS_EXPLICIT;
6966 tls_clear = TLS_TPREL;
6967 break;
6968 }
6969 continue;
6970
6971 case R_PPC64_DTPMOD64:
6972 if (pass == 0
6973 || sec != toc
6974 || toc_ref == NULL
6975 || !toc_ref[rel->r_offset / 8])
6976 continue;
6977 if (rel + 1 < relend
6978 && (rel[1].r_info
6979 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
6980 && rel[1].r_offset == rel->r_offset + 8)
6981 {
6982 if (ok_tprel)
6983 /* GD -> LE */
6984 tls_set = TLS_EXPLICIT | TLS_GD;
6985 else
6986 /* GD -> IE */
6987 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
6988 tls_clear = TLS_GD;
6989 }
6990 else
6991 {
6992 if (!is_local)
6993 continue;
6994
6995 /* LD -> LE */
6996 tls_set = TLS_EXPLICIT;
6997 tls_clear = TLS_LD;
6998 }
6999 break;
7000
7001 default:
7002 continue;
7003 }
7004
7005 if (pass == 0)
7006 {
7007 if (!expecting_tls_get_addr)
7008 continue;
7009
7010 if (rel + 1 < relend)
7011 {
7012 Elf_Internal_Shdr *symtab_hdr;
7013 enum elf_ppc64_reloc_type r_type2;
7014 unsigned long r_symndx2;
7015 struct elf_link_hash_entry *h2;
7016
0ffa91dd 7017 symtab_hdr = &elf_symtab_hdr (ibfd);
102890f0
AM		 7018
7019 /* The next instruction should be a call to
7020 __tls_get_addr. Peek at the reloc to be sure. */
7021 r_type2 = ELF64_R_TYPE (rel[1].r_info);
7022 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7023 if (r_symndx2 >= symtab_hdr->sh_info
7024 && (r_type2 == R_PPC64_REL14
7025 || r_type2 == R_PPC64_REL14_BRTAKEN
7026 || r_type2 == R_PPC64_REL14_BRNTAKEN
7027 || r_type2 == R_PPC64_REL24))
7028 {
7029 struct elf_link_hash_entry **sym_hashes;
7030
7031 sym_hashes = elf_sym_hashes (ibfd);
7032
7033 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7034 while (h2->root.type == bfd_link_hash_indirect
7035 || h2->root.type == bfd_link_hash_warning)
7036 h2 = ((struct elf_link_hash_entry *)
7037 h2->root.u.i.link);
7038 if (h2 != NULL
7039 && (h2 == &htab->tls_get_addr->elf
7040 || h2 == &htab->tls_get_addr_fd->elf))
7041 {
7042 if (expecting_tls_get_addr == 2)
7043 {
7044 /* Check for toc tls entries. */
7045 char *toc_tls;
7046 int retval;
7047
7048 retval = get_tls_mask (&toc_tls, NULL,
7049 &locsyms,
7050 rel, ibfd);
7051 if (retval == 0)
7052 goto err_free_rel;
7053 if (retval > 1 && toc_tls != NULL)
7054 toc_ref[toc_ref_index] = 1;
7055 }
7056 continue;
7057 }
7058 }
7059 }
7060
7061 if (expecting_tls_get_addr != 1)
7062 continue;
7063
7064 /* Uh oh, we didn't find the expected call. We
7065 could just mark this symbol to exclude it
7066 from tls optimization but it's safer to skip
7067 the entire section. */
7068 sec->has_tls_reloc = 0;
7069 break;
7070 }
7071
85f7a9cb 7072 if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
102890f0
AM		 7073 {
7074 struct plt_entry *ent;
7075 for (ent = htab->tls_get_addr->elf.plt.plist;
7076 ent != NULL;
7077 ent = ent->next)
7078 if (ent->addend == 0)
411e1bfb 7079 {
102890f0 7080 if (ent->plt.refcount > 0)
30038c59 7081 {
102890f0
AM		 7082 ent->plt.refcount -= 1;
7083 expecting_tls_get_addr = 0;
30038c59 7084 }
102890f0 7085 break;
411e1bfb 7086 }
102890f0 7087 }
411e1bfb 7088
85f7a9cb 7089 if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL)
102890f0
AM		 7090 {
7091 struct plt_entry *ent;
7092 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
7093 ent != NULL;
7094 ent = ent->next)
7095 if (ent->addend == 0)
411e1bfb 7096 {
102890f0
AM		 7097 if (ent->plt.refcount > 0)
7098 ent->plt.refcount -= 1;
7099 break;
411e1bfb 7100 }
102890f0 7101 }
411e1bfb 7102
102890f0 7103 if (tls_clear == 0)
30038c59
AM		 7104 continue;
7105
102890f0
AM		 7106 if ((tls_set & TLS_EXPLICIT) == 0)
7107 {
7108 struct got_entry *ent;
411e1bfb 7109
102890f0
AM		 7110 /* Adjust got entry for this reloc. */
7111 if (h != NULL)
7112 ent = h->got.glist;
7113 else
7114 ent = elf_local_got_ents (ibfd)[r_symndx];
411e1bfb 7115
102890f0
AM		 7116 for (; ent != NULL; ent = ent->next)
7117 if (ent->addend == rel->r_addend
7118 && ent->owner == ibfd
7119 && ent->tls_type == tls_type)
7120 break;
7121 if (ent == NULL)
7122 abort ();
411e1bfb 7123
102890f0
AM		 7124 if (tls_set == 0)
7125 {
7126 /* We managed to get rid of a got entry. */
7127 if (ent->got.refcount > 0)
7128 ent->got.refcount -= 1;
7129 }
7130 }
7131 else
7132 {
7133 /* If we got rid of a DTPMOD/DTPREL reloc pair then
7134 we'll lose one or two dyn relocs. */
7135 if (!dec_dynrel_count (rel->r_info, sec, info,
7136 NULL, h, sym_sec))
7137 return FALSE;
411e1bfb 7138
102890f0
AM		 7139 if (tls_set == (TLS_EXPLICIT | TLS_GD))
7140 {
7141 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
7142 NULL, h, sym_sec))
7143 return FALSE;
7144 }
7145 }
411e1bfb 7146
102890f0
AM		 7147 *tls_mask |= tls_set;
7148 *tls_mask &= ~tls_clear;
7149 }
8c1d1bb8 7150
102890f0
AM		 7151 if (elf_section_data (sec)->relocs != relstart)
7152 free (relstart);
7153 }
411e1bfb 7154
102890f0
AM		 7155 if (toc_ref != NULL)
7156 free (toc_ref);
411e1bfb 7157
102890f0 7158 if (locsyms != NULL
0ffa91dd 7159 && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms))
102890f0
AM		 7160 {
7161 if (!info->keep_memory)
7162 free (locsyms);
7163 else
0ffa91dd 7164 elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms;
411e1bfb 7165 }
102890f0 7166 }
b34976b6 7167 return TRUE;
1e2f5b6e 7168}
b34976b6 7169
c5614fa4
AM		 7170/* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
7171 the values of any global symbols in a toc section that has been
7172 edited. Globals in toc sections should be a rarity, so this function
7173 sets a flag if any are found in toc sections other than the one just
7174 edited, so that futher hash table traversals can be avoided. */
7175
7176struct adjust_toc_info
7177{
7178 asection *toc;
7179 unsigned long *skip;
7180 bfd_boolean global_toc_syms;
7181};
7182
7183static bfd_boolean
7184adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
7185{
7186 struct ppc_link_hash_entry *eh;
7187 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
7188
7189 if (h->root.type == bfd_link_hash_indirect)
7190 return TRUE;
7191
7192 if (h->root.type == bfd_link_hash_warning)
7193 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7194
7195 if (h->root.type != bfd_link_hash_defined
7196 && h->root.type != bfd_link_hash_defweak)
7197 return TRUE;
7198
7199 eh = (struct ppc_link_hash_entry *) h;
7200 if (eh->adjust_done)
7201 return TRUE;
7202
7203 if (eh->elf.root.u.def.section == toc_inf->toc)
7204 {
7205 unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3];
7206 if (skip != (unsigned long) -1)
7207 eh->elf.root.u.def.value -= skip;
7208 else
7209 {
7210 (*_bfd_error_handler)
7211 (_("%s defined in removed toc entry"), eh->elf.root.root.string);
7212 eh->elf.root.u.def.section = &bfd_abs_section;
7213 eh->elf.root.u.def.value = 0;
7214 }
7215 eh->adjust_done = 1;
7216 }
7217 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
7218 toc_inf->global_toc_syms = TRUE;
7219
7220 return TRUE;
7221}
7222
7223/* Examine all relocs referencing .toc sections in order to remove
7224 unused .toc entries. */
7225
7226bfd_boolean
7227ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
7228{
7229 bfd *ibfd;
7230 struct adjust_toc_info toc_inf;
7231
7232 toc_inf.global_toc_syms = TRUE;
7233 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7234 {
7235 asection *toc, *sec;
7236 Elf_Internal_Shdr *symtab_hdr;
7237 Elf_Internal_Sym *local_syms;
7238 struct elf_link_hash_entry **sym_hashes;
92b7a70f 7239 Elf_Internal_Rela *relstart, *rel;
c5614fa4
AM		 7240 unsigned long *skip, *drop;
7241 unsigned char *used;
7242 unsigned char *keep, last, some_unused;
7243
7244 toc = bfd_get_section_by_name (ibfd, ".toc");
7245 if (toc == NULL
92b7a70f 7246 || toc->size == 0
c5614fa4
AM		 7247 || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS
7248 || elf_discarded_section (toc))
7249 continue;
7250
7251 local_syms = NULL;
0ffa91dd 7252 symtab_hdr = &elf_symtab_hdr (ibfd);
c5614fa4
AM		 7253 sym_hashes = elf_sym_hashes (ibfd);
7254
7255 /* Look at sections dropped from the final link. */
7256 skip = NULL;
7257 relstart = NULL;
7258 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7259 {
7260 if (sec->reloc_count == 0
7261 || !elf_discarded_section (sec)
7262 || get_opd_info (sec)
7263 || (sec->flags & SEC_ALLOC) == 0
7264 || (sec->flags & SEC_DEBUGGING) != 0)
7265 continue;
7266
7267 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
7268 if (relstart == NULL)
7269 goto error_ret;
7270
7271 /* Run through the relocs to see which toc entries might be
7272 unused. */
7273 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7274 {
7275 enum elf_ppc64_reloc_type r_type;
7276 unsigned long r_symndx;
7277 asection *sym_sec;
7278 struct elf_link_hash_entry *h;
7279 Elf_Internal_Sym *sym;
7280 bfd_vma val;
7281
7282 r_type = ELF64_R_TYPE (rel->r_info);
7283 switch (r_type)
7284 {
7285 default:
7286 continue;
7287
7288 case R_PPC64_TOC16:
7289 case R_PPC64_TOC16_LO:
7290 case R_PPC64_TOC16_HI:
7291 case R_PPC64_TOC16_HA:
7292 case R_PPC64_TOC16_DS:
7293 case R_PPC64_TOC16_LO_DS:
7294 break;
7295 }
7296
7297 r_symndx = ELF64_R_SYM (rel->r_info);
7298 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7299 r_symndx, ibfd))
7300 goto error_ret;
7301
7302 if (sym_sec != toc)
7303 continue;
7304
7305 if (h != NULL)
7306 val = h->root.u.def.value;
7307 else
7308 val = sym->st_value;
7309 val += rel->r_addend;
7310
7311 if (val >= toc->size)
7312 continue;
7313
7314 /* Anything in the toc ought to be aligned to 8 bytes.
7315 If not, don't mark as unused. */
7316 if (val & 7)
7317 continue;
7318
7319 if (skip == NULL)
7320 {
7321 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8);
7322 if (skip == NULL)
7323 goto error_ret;
7324 }
7325
7326 skip[val >> 3] = 1;
7327 }
7328
7329 if (elf_section_data (sec)->relocs != relstart)
7330 free (relstart);
7331 }
7332
7333 if (skip == NULL)
7334 continue;
7335
7336 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
7337 if (used == NULL)
7338 {
7339 error_ret:
7340 if (local_syms != NULL
7341 && symtab_hdr->contents != (unsigned char *) local_syms)
7342 free (local_syms);
7343 if (sec != NULL
7344 && relstart != NULL
7345 && elf_section_data (sec)->relocs != relstart)
7346 free (relstart);
7347 if (skip != NULL)
7348 free (skip);
7349 return FALSE;
7350 }
7351
30038c59
AM		 7352 /* Now check all kept sections that might reference the toc.
7353 Check the toc itself last. */
7354 for (sec = (ibfd->sections == toc && toc->next ? toc->next
7355 : ibfd->sections);
c5614fa4 7356 sec != NULL;
c5614fa4 7357 sec = (sec == toc ? NULL
c5614fa4 7358 : sec->next == NULL ? toc
30038c59 7359 : sec->next == toc && toc->next ? toc->next
c5614fa4
AM		 7360 : sec->next))
7361 {
7362 int repeat;
7363
7364 if (sec->reloc_count == 0
7365 || elf_discarded_section (sec)
7366 || get_opd_info (sec)
7367 || (sec->flags & SEC_ALLOC) == 0
7368 || (sec->flags & SEC_DEBUGGING) != 0)
7369 continue;
7370
7371 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE);
7372 if (relstart == NULL)
7373 goto error_ret;
7374
7375 /* Mark toc entries referenced as used. */
7376 repeat = 0;
7377 do
7378 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7379 {
7380 enum elf_ppc64_reloc_type r_type;
7381 unsigned long r_symndx;
7382 asection *sym_sec;
7383 struct elf_link_hash_entry *h;
7384 Elf_Internal_Sym *sym;
7385 bfd_vma val;
7386
7387 r_type = ELF64_R_TYPE (rel->r_info);
7388 switch (r_type)
7389 {
7390 case R_PPC64_TOC16:
7391 case R_PPC64_TOC16_LO:
7392 case R_PPC64_TOC16_HI:
7393 case R_PPC64_TOC16_HA:
7394 case R_PPC64_TOC16_DS:
7395 case R_PPC64_TOC16_LO_DS:
7396 /* In case we're taking addresses of toc entries. */
7397 case R_PPC64_ADDR64:
7398 break;
7399
7400 default:
7401 continue;
7402 }
7403
7404 r_symndx = ELF64_R_SYM (rel->r_info);
7405 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7406 r_symndx, ibfd))
7407 {
7408 free (used);
7409 goto error_ret;
7410 }
7411
7412 if (sym_sec != toc)
7413 continue;
7414
7415 if (h != NULL)
7416 val = h->root.u.def.value;
7417 else
7418 val = sym->st_value;
7419 val += rel->r_addend;
7420
7421 if (val >= toc->size)
7422 continue;
7423
7424 /* For the toc section, we only mark as used if
7425 this entry itself isn't unused. */
7426 if (sec == toc
7427 && !used[val >> 3]
7428 && (used[rel->r_offset >> 3]
7429 || !skip[rel->r_offset >> 3]))
7430 /* Do all the relocs again, to catch reference
7431 chains. */
7432 repeat = 1;
7433
7434 used[val >> 3] = 1;
7435 }
7436 while (repeat);
7437 }
7438
7439 /* Merge the used and skip arrays. Assume that TOC
7440 doublewords not appearing as either used or unused belong
7441 to to an entry more than one doubleword in size. */
7442 for (drop = skip, keep = used, last = 0, some_unused = 0;
7443 drop < skip + (toc->size + 7) / 8;
7444 ++drop, ++keep)
7445 {
7446 if (*keep)
7447 {
7448 *drop = 0;
7449 last = 0;
7450 }
7451 else if (*drop)
7452 {
7453 some_unused = 1;
7454 last = 1;
7455 }
7456 else
7457 *drop = last;
7458 }
7459
7460 free (used);
7461
7462 if (some_unused)
7463 {
7464 bfd_byte *contents, *src;
7465 unsigned long off;
7466
7467 /* Shuffle the toc contents, and at the same time convert the
7468 skip array from booleans into offsets. */
7469 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
7470 goto error_ret;
7471
7472 elf_section_data (toc)->this_hdr.contents = contents;
7473
7474 for (src = contents, off = 0, drop = skip;
7475 src < contents + toc->size;
7476 src += 8, ++drop)
7477 {
7478 if (*drop)
7479 {
7480 *drop = (unsigned long) -1;
7481 off += 8;
7482 }
7483 else if (off != 0)
7484 {
7485 *drop = off;
7486 memcpy (src - off, src, 8);
7487 }
7488 }
7489 toc->rawsize = toc->size;
7490 toc->size = src - contents - off;
7491
92b7a70f
AM		 7492 if (toc->reloc_count != 0)
7493 {
7494 Elf_Internal_Rela *wrel;
7495 bfd_size_type sz;
c5614fa4 7496
92b7a70f
AM		 7497 /* Read toc relocs. */
7498 relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
7499 TRUE);
7500 if (relstart == NULL)
7501 goto error_ret;
7502
7503 /* Remove unused toc relocs, and adjust those we keep. */
7504 wrel = relstart;
7505 for (rel = relstart; rel < relstart + toc->reloc_count; ++rel)
7506 if (skip[rel->r_offset >> 3] != (unsigned long) -1)
7507 {
7508 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
7509 wrel->r_info = rel->r_info;
7510 wrel->r_addend = rel->r_addend;
7511 ++wrel;
7512 }
8c1d1bb8
AM		 7513 else if (!dec_dynrel_count (rel->r_info, toc, info,
7514 &local_syms, NULL, NULL))
7515 goto error_ret;
35090471 7516
92b7a70f
AM		 7517 toc->reloc_count = wrel - relstart;
7518 sz = elf_section_data (toc)->rel_hdr.sh_entsize;
7519 elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz;
7520 BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL);
7521 }
c5614fa4
AM		 7522
7523 /* Adjust addends for relocs against the toc section sym. */
7524 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7525 {
7526 if (sec->reloc_count == 0
7527 || elf_discarded_section (sec))
7528 continue;
7529
7530 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7531 TRUE);
7532 if (relstart == NULL)
7533 goto error_ret;
7534
7535 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7536 {
7537 enum elf_ppc64_reloc_type r_type;
7538 unsigned long r_symndx;
7539 asection *sym_sec;
7540 struct elf_link_hash_entry *h;
7541 Elf_Internal_Sym *sym;
7542
7543 r_type = ELF64_R_TYPE (rel->r_info);
7544 switch (r_type)
7545 {
7546 default:
7547 continue;
7548
7549 case R_PPC64_TOC16:
7550 case R_PPC64_TOC16_LO:
7551 case R_PPC64_TOC16_HI:
7552 case R_PPC64_TOC16_HA:
7553 case R_PPC64_TOC16_DS:
7554 case R_PPC64_TOC16_LO_DS:
7555 case R_PPC64_ADDR64:
7556 break;
7557 }
7558
7559 r_symndx = ELF64_R_SYM (rel->r_info);
7560 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7561 r_symndx, ibfd))
7562 goto error_ret;
7563
7564 if (sym_sec != toc || h != NULL || sym->st_value != 0)
7565 continue;
7566
7567 rel->r_addend -= skip[rel->r_addend >> 3];
7568 }
7569 }
7570
7571 /* We shouldn't have local or global symbols defined in the TOC,
7572 but handle them anyway. */
7573 if (local_syms != NULL)
7574 {
7575 Elf_Internal_Sym *sym;
7576
7577 for (sym = local_syms;
7578 sym < local_syms + symtab_hdr->sh_info;
7579 ++sym)
7580 if (sym->st_shndx != SHN_UNDEF
7581 && (sym->st_shndx < SHN_LORESERVE
7582 || sym->st_shndx > SHN_HIRESERVE)
7583 && sym->st_value != 0
7584 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
7585 {
7586 if (skip[sym->st_value >> 3] != (unsigned long) -1)
7587 sym->st_value -= skip[sym->st_value >> 3];
7588 else
7589 {
7590 (*_bfd_error_handler)
7591 (_("%s defined in removed toc entry"),
26c61ae5
L		 7592 bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7593 NULL));
c5614fa4
AM		 7594 sym->st_value = 0;
7595 sym->st_shndx = SHN_ABS;
7596 }
7597 symtab_hdr->contents = (unsigned char *) local_syms;
7598 }
7599 }
7600
7601 /* Finally, adjust any global syms defined in the toc. */
7602 if (toc_inf.global_toc_syms)
7603 {
7604 toc_inf.toc = toc;
7605 toc_inf.skip = skip;
7606 toc_inf.global_toc_syms = FALSE;
7607 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
7608 &toc_inf);
7609 }
7610 }
7611
7612 if (local_syms != NULL
7613 && symtab_hdr->contents != (unsigned char *) local_syms)
7614 {
7615 if (!info->keep_memory)
7616 free (local_syms);
7617 else
7618 symtab_hdr->contents = (unsigned char *) local_syms;
7619 }
7620 free (skip);
7621 }
7622
7623 return TRUE;
7624}
7625
65f38f15
AM		 7626/* Allocate space in .plt, .got and associated reloc sections for
7627 dynamic relocs. */
5bd4f169 7628
b34976b6 7629static bfd_boolean
4ce794b7 7630allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 7631{
65f38f15
AM		 7632 struct bfd_link_info *info;
7633 struct ppc_link_hash_table *htab;
5bd4f169 7634 asection *s;
65f38f15
AM		 7635 struct ppc_link_hash_entry *eh;
7636 struct ppc_dyn_relocs *p;
411e1bfb 7637 struct got_entry *gent;
5bd4f169 7638
e92d460e 7639 if (h->root.type == bfd_link_hash_indirect)
b34976b6 7640 return TRUE;
5bd4f169 7641
e92d460e
AM		 7642 if (h->root.type == bfd_link_hash_warning)
7643 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7644
65f38f15
AM		 7645 info = (struct bfd_link_info *) inf;
7646 htab = ppc_hash_table (info);
5bd4f169 7647
65f38f15 7648 if (htab->elf.dynamic_sections_created
411e1bfb 7649 && h->dynindx != -1
9c7a29a3 7650 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 7651 {
411e1bfb
AM		 7652 struct plt_entry *pent;
7653 bfd_boolean doneone = FALSE;
7654 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
7655 if (pent->plt.refcount > 0)
7656 {
411e1bfb
AM		 7657 /* If this is the first .plt entry, make room for the special
7658 first entry. */
4ce794b7 7659 s = htab->plt;
eea6121a
AM		 7660 if (s->size == 0)
7661 s->size += PLT_INITIAL_ENTRY_SIZE;
411e1bfb 7662
eea6121a 7663 pent->plt.offset = s->size;
411e1bfb
AM		 7664
7665 /* Make room for this entry. */
eea6121a 7666 s->size += PLT_ENTRY_SIZE;
411e1bfb
AM		 7667
7668 /* Make room for the .glink code. */
4ce794b7 7669 s = htab->glink;
eea6121a
AM		 7670 if (s->size == 0)
7671 s->size += GLINK_CALL_STUB_SIZE;
411e1bfb 7672 /* We need bigger stubs past index 32767. */
eea6121a
AM		 7673 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
7674 s->size += 4;
7675 s->size += 2*4;
411e1bfb
AM		 7676
7677 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 7678 s = htab->relplt;
eea6121a 7679 s->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 7680 doneone = TRUE;
7681 }
7682 else
7683 pent->plt.offset = (bfd_vma) -1;
7684 if (!doneone)
65f38f15 7685 {
411e1bfb 7686 h->plt.plist = NULL;
f5385ebf 7687 h->needs_plt = 0;
65f38f15
AM		 7688 }
7689 }
7690 else
7691 {
411e1bfb 7692 h->plt.plist = NULL;
f5385ebf 7693 h->needs_plt = 0;
65f38f15
AM		 7694 }
7695
951fd09b
AM		 7696 eh = (struct ppc_link_hash_entry *) h;
7697 /* Run through the TLS GD got entries first if we're changing them
7698 to TPREL. */
e7b938ca 7699 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 7700 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7701 if (gent->got.refcount > 0
7702 && (gent->tls_type & TLS_GD) != 0)
7703 {
7704 /* This was a GD entry that has been converted to TPREL. If
7705 there happens to be a TPREL entry we can use that one. */
7706 struct got_entry *ent;
7707 for (ent = h->got.glist; ent != NULL; ent = ent->next)
7708 if (ent->got.refcount > 0
7709 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 7710 && ent->addend == gent->addend
7711 && ent->owner == gent->owner)
951fd09b
AM		 7712 {
7713 gent->got.refcount = 0;
7714 break;
7715 }
7716
7717 /* If not, then we'll be using our own TPREL entry. */
7718 if (gent->got.refcount != 0)
7719 gent->tls_type = TLS_TLS | TLS_TPREL;
7720 }
7721
411e1bfb
AM		 7722 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7723 if (gent->got.refcount > 0)
7724 {
951fd09b
AM		 7725 bfd_boolean dyn;
7726
411e1bfb 7727 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 7728 Undefined weak syms won't yet be marked as dynamic,
7729 nor will all TLS symbols. */
411e1bfb 7730 if (h->dynindx == -1
f5385ebf 7731 && !h->forced_local)
411e1bfb 7732 {
c152c796 7733 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM		 7734 return FALSE;
7735 }
65f38f15 7736
d881513a 7737 if ((gent->tls_type & TLS_LD) != 0
f5385ebf 7738 && !h->def_dynamic)
411e1bfb 7739 {
102890f0
AM		 7740 ppc64_tlsld_got (gent->owner)->refcount += 1;
7741 gent->got.offset = (bfd_vma) -1;
951fd09b 7742 continue;
411e1bfb 7743 }
951fd09b 7744
0c8d6e5c 7745 if (!is_ppc64_elf (gent->owner))
0ffa91dd
NC		 7746 continue;
7747
e717da7e 7748 s = ppc64_elf_tdata (gent->owner)->got;
eea6121a
AM		 7749 gent->got.offset = s->size;
7750 s->size
d881513a 7751 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 7752 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 7753 if ((info->shared
7754 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
7755 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7756 || h->root.type != bfd_link_hash_undefweak))
eea6121a 7757 ppc64_elf_tdata (gent->owner)->relgot->size
e7b938ca 7758 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 7759 ? 2 * sizeof (Elf64_External_Rela)
7760 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 7761 }
7762 else
7763 gent->got.offset = (bfd_vma) -1;
65f38f15 7764
65f38f15 7765 if (eh->dyn_relocs == NULL)
b34976b6 7766 return TRUE;
65f38f15
AM		 7767
7768 /* In the shared -Bsymbolic case, discard space allocated for
7769 dynamic pc-relative relocs against symbols which turn out to be
7770 defined in regular objects. For the normal shared case, discard
7771 space for relocs that have become local due to symbol visibility
7772 changes. */
7773
7774 if (info->shared)
7775 {
9c7a29a3
AM		 7776 /* Relocs that use pc_count are those that appear on a call insn,
7777 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
7778 generated via assembly. We want calls to protected symbols to
7779 resolve directly to the function rather than going via the plt.
7780 If people want function pointer comparisons to work as expected
7781 then they should avoid writing weird assembly. */
09695f56 7782 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 7783 {
7784 struct ppc_dyn_relocs **pp;
7785
7786 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 7787 {
65f38f15
AM		 7788 p->count -= p->pc_count;
7789 p->pc_count = 0;
7790 if (p->count == 0)
7791 *pp = p->next;
7792 else
7793 pp = &p->next;
5bd4f169 7794 }
65f38f15 7795 }
4e795f50
AM		 7796
7797 /* Also discard relocs on undefined weak syms with non-default
7798 visibility. */
cab87ef9
AM		 7799 if (eh->dyn_relocs != NULL
7800 && h->root.type == bfd_link_hash_undefweak)
dfbb6ac9
AM		 7801 {
7802 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
7803 eh->dyn_relocs = NULL;
7804
7805 /* Make sure this symbol is output as a dynamic symbol.
7806 Undefined weak syms won't yet be marked as dynamic. */
7807 else if (h->dynindx == -1
7808 && !h->forced_local)
7809 {
7810 if (! bfd_elf_link_record_dynamic_symbol (info, h))
7811 return FALSE;
7812 }
7813 }
65f38f15 7814 }
f4656909 7815 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 7816 {
7817 /* For the non-shared case, discard space for relocs against
7818 symbols which turn out to need copy relocs or are not
7819 dynamic. */
7820
f5385ebf
AM		 7821 if (!h->non_got_ref
7822 && h->def_dynamic
7823 && !h->def_regular)
65f38f15
AM		 7824 {
7825 /* Make sure this symbol is output as a dynamic symbol.
7826 Undefined weak syms won't yet be marked as dynamic. */
7827 if (h->dynindx == -1
f5385ebf 7828 && !h->forced_local)
65f38f15 7829 {
c152c796 7830 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 7831 return FALSE;
65f38f15
AM		 7832 }
7833
7834 /* If that succeeded, we know we'll be keeping all the
7835 relocs. */
7836 if (h->dynindx != -1)
7837 goto keep;
7838 }
7839
7840 eh->dyn_relocs = NULL;
7841
ec338859 7842 keep: ;
65f38f15
AM		 7843 }
7844
7845 /* Finally, allocate space. */
7846 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7847 {
7848 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 7849 sreloc->size += p->count * sizeof (Elf64_External_Rela);
65f38f15
AM		 7850 }
7851
b34976b6 7852 return TRUE;
65f38f15
AM		 7853}
7854
7855/* Find any dynamic relocs that apply to read-only sections. */
7856
b34976b6 7857static bfd_boolean
4ce794b7 7858readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 7859{
7860 struct ppc_link_hash_entry *eh;
7861 struct ppc_dyn_relocs *p;
7862
e92d460e
AM		 7863 if (h->root.type == bfd_link_hash_warning)
7864 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7865
65f38f15
AM		 7866 eh = (struct ppc_link_hash_entry *) h;
7867 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7868 {
7869 asection *s = p->sec->output_section;
7870
7871 if (s != NULL && (s->flags & SEC_READONLY) != 0)
7872 {
4ce794b7 7873 struct bfd_link_info *info = inf;
65f38f15
AM		 7874
7875 info->flags |= DF_TEXTREL;
7876
7877 /* Not an error, just cut short the traversal. */
b34976b6 7878 return FALSE;
65f38f15
AM		 7879 }
7880 }
b34976b6 7881 return TRUE;
65f38f15
AM		 7882}
7883
7884/* Set the sizes of the dynamic sections. */
7885
b34976b6 7886static bfd_boolean
4ce794b7
AM		 7887ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
7888 struct bfd_link_info *info)
65f38f15
AM		 7889{
7890 struct ppc_link_hash_table *htab;
7891 bfd *dynobj;
7892 asection *s;
b34976b6 7893 bfd_boolean relocs;
65f38f15
AM		 7894 bfd *ibfd;
7895
7896 htab = ppc_hash_table (info);
7897 dynobj = htab->elf.dynobj;
7898 if (dynobj == NULL)
7899 abort ();
7900
7901 if (htab->elf.dynamic_sections_created)
7902 {
7903 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 7904 if (info->executable)
65f38f15
AM		 7905 {
7906 s = bfd_get_section_by_name (dynobj, ".interp");
7907 if (s == NULL)
7908 abort ();
eea6121a 7909 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM		 7910 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
7911 }
7912 }
7913
7914 /* Set up .got offsets for local syms, and space for local dynamic
7915 relocs. */
7916 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7917 {
411e1bfb
AM		 7918 struct got_entry **lgot_ents;
7919 struct got_entry **end_lgot_ents;
e7b938ca 7920 char *lgot_masks;
65f38f15
AM		 7921 bfd_size_type locsymcount;
7922 Elf_Internal_Shdr *symtab_hdr;
7923 asection *srel;
7924
0c8d6e5c 7925 if (!is_ppc64_elf (ibfd))
65f38f15
AM		 7926 continue;
7927
7928 for (s = ibfd->sections; s != NULL; s = s->next)
7929 {
ec338859 7930 struct ppc_dyn_relocs *p;
65f38f15 7931
6edfbbad 7932 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
65f38f15 7933 {
ec338859
AM		 7934 if (!bfd_is_abs_section (p->sec)
7935 && bfd_is_abs_section (p->sec->output_section))
7936 {
7937 /* Input section has been discarded, either because
7938 it is a copy of a linkonce section or due to
7939 linker script /DISCARD/, so we'll be discarding
7940 the relocs too. */
7941 }
248866a8 7942 else if (p->count != 0)
ec338859
AM		 7943 {
7944 srel = elf_section_data (p->sec)->sreloc;
eea6121a 7945 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 7946 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
7947 info->flags |= DF_TEXTREL;
ec338859 7948 }
65f38f15
AM		 7949 }
7950 }
7951
411e1bfb
AM		 7952 lgot_ents = elf_local_got_ents (ibfd);
7953 if (!lgot_ents)
65f38f15
AM		 7954 continue;
7955
0ffa91dd 7956 symtab_hdr = &elf_symtab_hdr (ibfd);
65f38f15 7957 locsymcount = symtab_hdr->sh_info;
411e1bfb 7958 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 7959 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 7960 s = ppc64_elf_tdata (ibfd)->got;
7961 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 7962 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 7963 {
411e1bfb
AM		 7964 struct got_entry *ent;
7965
7966 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
7967 if (ent->got.refcount > 0)
7968 {
e7b938ca 7969 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 7970 {
102890f0
AM		 7971 ppc64_tlsld_got (ibfd)->refcount += 1;
7972 ent->got.offset = (bfd_vma) -1;
411e1bfb
AM		 7973 }
7974 else
7975 {
eea6121a 7976 ent->got.offset = s->size;
e7b938ca 7977 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb 7978 {
eea6121a 7979 s->size += 16;
411e1bfb 7980 if (info->shared)
eea6121a 7981 srel->size += 2 * sizeof (Elf64_External_Rela);
411e1bfb
AM		 7982 }
7983 else
7984 {
eea6121a 7985 s->size += 8;
411e1bfb 7986 if (info->shared)
eea6121a 7987 srel->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 7988 }
7989 }
7990 }
7991 else
7992 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 7993 }
7994 }
7995
7996 /* Allocate global sym .plt and .got entries, and space for global
7997 sym dynamic relocs. */
4ce794b7 7998 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15 7999
102890f0
AM		 8000 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8001 {
0c8d6e5c 8002 if (!is_ppc64_elf (ibfd))
102890f0
AM		 8003 continue;
8004
8005 if (ppc64_tlsld_got (ibfd)->refcount > 0)
8006 {
8007 s = ppc64_elf_tdata (ibfd)->got;
8008 ppc64_tlsld_got (ibfd)->offset = s->size;
8009 s->size += 16;
8010 if (info->shared)
8011 {
8012 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
8013 srel->size += sizeof (Elf64_External_Rela);
8014 }
8015 }
8016 else
8017 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
8018 }
8019
65f38f15
AM		 8020 /* We now have determined the sizes of the various dynamic sections.
8021 Allocate memory for them. */
b34976b6 8022 relocs = FALSE;
65f38f15
AM		 8023 for (s = dynobj->sections; s != NULL; s = s->next)
8024 {
8025 if ((s->flags & SEC_LINKER_CREATED) == 0)
8026 continue;
8027
4ce794b7 8028 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 8029 /* These haven't been allocated yet; don't strip. */
8030 continue;
e717da7e
AM		 8031 else if (s == htab->got
8032 || s == htab->plt
c456f082
AM		 8033 || s == htab->glink
8034 || s == htab->dynbss)
65f38f15
AM		 8035 {
8036 /* Strip this section if we don't need it; see the
8037 comment below. */
5bd4f169 8038 }
0112cd26 8039 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
5bd4f169 8040 {
c456f082 8041 if (s->size != 0)
5bd4f169 8042 {
4ce794b7 8043 if (s != htab->relplt)
b34976b6 8044 relocs = TRUE;
5bd4f169
AM		 8045
8046 /* We use the reloc_count field as a counter if we need
8047 to copy relocs into the output file. */
8048 s->reloc_count = 0;
8049 }
8050 }
65f38f15 8051 else
5bd4f169
AM		 8052 {
8053 /* It's not one of our sections, so don't allocate space. */
8054 continue;
8055 }
8056
eea6121a 8057 if (s->size == 0)
5bd4f169 8058 {
c456f082
AM		 8059 /* If we don't need this section, strip it from the
8060 output file. This is mostly to handle .rela.bss and
8061 .rela.plt. We must create both sections in
8062 create_dynamic_sections, because they must be created
8063 before the linker maps input sections to output
8064 sections. The linker does that before
8065 adjust_dynamic_symbol is called, and it is that
8066 function which decides whether anything needs to go
8067 into these sections. */
8423293d 8068 s->flags |= SEC_EXCLUDE;
5bd4f169
AM		 8069 continue;
8070 }
8071
c456f082 8072 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5f333394
AM		 8073 continue;
8074
65f38f15
AM		 8075 /* Allocate memory for the section contents. We use bfd_zalloc
8076 here in case unused entries are not reclaimed before the
8077 section's contents are written out. This should not happen,
411e1bfb
AM		 8078 but this way if it does we get a R_PPC64_NONE reloc in .rela
8079 sections instead of garbage.
8080 We also rely on the section contents being zero when writing
8081 the GOT. */
eea6121a 8082 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 8083 if (s->contents == NULL)
b34976b6 8084 return FALSE;
5bd4f169
AM		 8085 }
8086
e717da7e
AM		 8087 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8088 {
0c8d6e5c 8089 if (!is_ppc64_elf (ibfd))
7b53ace3
AM		 8090 continue;
8091
e717da7e
AM		 8092 s = ppc64_elf_tdata (ibfd)->got;
8093 if (s != NULL && s != htab->got)
8094 {
eea6121a 8095 if (s->size == 0)
8423293d 8096 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 8097 else
8098 {
eea6121a 8099 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 8100 if (s->contents == NULL)
8101 return FALSE;
8102 }
8103 }
8104 s = ppc64_elf_tdata (ibfd)->relgot;
8105 if (s != NULL)
8106 {
eea6121a 8107 if (s->size == 0)
8423293d 8108 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 8109 else
8110 {
eea6121a 8111 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 8112 if (s->contents == NULL)
8113 return FALSE;
8114 relocs = TRUE;
8115 s->reloc_count = 0;
8116 }
8117 }
8118 }
8119
e86ce104 8120 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 8121 {
8122 /* Add some entries to the .dynamic section. We fill in the
8123 values later, in ppc64_elf_finish_dynamic_sections, but we
8124 must add the entries now so that we get the correct size for
8125 the .dynamic section. The DT_DEBUG entry is filled in by the
8126 dynamic linker and used by the debugger. */
dc810e39 8127#define add_dynamic_entry(TAG, VAL) \
5a580b3a 8128 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 8129
36af4a4e 8130 if (info->executable)
5bd4f169 8131 {
dc810e39 8132 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 8133 return FALSE;
5bd4f169
AM		 8134 }
8135
eea6121a 8136 if (htab->plt != NULL && htab->plt->size != 0)
5bd4f169 8137 {
dc810e39
AM		 8138 if (!add_dynamic_entry (DT_PLTGOT, 0)
8139 || !add_dynamic_entry (DT_PLTRELSZ, 0)
8140 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 8141 || !add_dynamic_entry (DT_JMPREL, 0)
8142 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 8143 return FALSE;
5bd4f169
AM		 8144 }
8145
19397422
AM		 8146 if (NO_OPD_RELOCS)
8147 {
8148 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
8149 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 8150 return FALSE;
19397422
AM		 8151 }
8152
5bd4f169
AM		 8153 if (relocs)
8154 {
dc810e39
AM		 8155 if (!add_dynamic_entry (DT_RELA, 0)
8156 || !add_dynamic_entry (DT_RELASZ, 0)
8157 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 8158 return FALSE;
5bd4f169 8159
65f38f15
AM		 8160 /* If any dynamic relocs apply to a read-only section,
8161 then we need a DT_TEXTREL entry. */
248866a8 8162 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 8163 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 8164
65f38f15 8165 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 8166 {
65f38f15 8167 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 8168 return FALSE;
5bd4f169 8169 }
5bd4f169 8170 }
5bd4f169 8171 }
65f38f15 8172#undef add_dynamic_entry
5bd4f169 8173
b34976b6 8174 return TRUE;
5bd4f169
AM		 8175}
8176
721956f4 8177/* Determine the type of stub needed, if any, for a call. */
5bd4f169 8178
4ce794b7
AM		 8179static inline enum ppc_stub_type
8180ppc_type_of_stub (asection *input_sec,
8181 const Elf_Internal_Rela *rel,
8182 struct ppc_link_hash_entry **hash,
8183 bfd_vma destination)
5bd4f169 8184{
721956f4
AM		 8185 struct ppc_link_hash_entry *h = *hash;
8186 bfd_vma location;
8187 bfd_vma branch_offset;
8188 bfd_vma max_branch_offset;
4ce794b7 8189 enum elf_ppc64_reloc_type r_type;
5bd4f169 8190
721956f4
AM		 8191 if (h != NULL)
8192 {
7fe2b9a6
AM		 8193 struct ppc_link_hash_entry *fdh = h;
8194 if (fdh->oh != NULL
8195 && fdh->oh->is_func_descriptor)
8196 fdh = fdh->oh;
8387904d 8197
7fe2b9a6 8198 if (fdh->elf.dynindx != -1)
5bd4f169 8199 {
411e1bfb 8200 struct plt_entry *ent;
8387904d 8201
7fe2b9a6 8202 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 8203 if (ent->addend == rel->r_addend
8204 && ent->plt.offset != (bfd_vma) -1)
8205 {
7fe2b9a6 8206 *hash = fdh;
411e1bfb
AM		 8207 return ppc_stub_plt_call;
8208 }
5bd4f169
AM		 8209 }
8210
7fe2b9a6
AM		 8211 /* Here, we know we don't have a plt entry. If we don't have a
8212 either a defined function descriptor or a defined entry symbol
8213 in a regular object file, then it is pointless trying to make
8214 any other type of stub. */
8215 if (!((fdh->elf.root.type == bfd_link_hash_defined
8216 || fdh->elf.root.type == bfd_link_hash_defweak)
8217 && fdh->elf.root.u.def.section->output_section != NULL)
8218 && !((h->elf.root.type == bfd_link_hash_defined
8219 || h->elf.root.type == bfd_link_hash_defweak)
8220 && h->elf.root.u.def.section->output_section != NULL))
721956f4 8221 return ppc_stub_none;
5d1634d7 8222 }
5d1634d7 8223
721956f4
AM		 8224 /* Determine where the call point is. */
8225 location = (input_sec->output_offset
8226 + input_sec->output_section->vma
8227 + rel->r_offset);
5d1634d7 8228
721956f4
AM		 8229 branch_offset = destination - location;
8230 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 8231
721956f4
AM		 8232 /* Determine if a long branch stub is needed. */
8233 max_branch_offset = 1 << 25;
4ce794b7 8234 if (r_type != R_PPC64_REL24)
721956f4 8235 max_branch_offset = 1 << 15;
5d1634d7 8236
721956f4
AM		 8237 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
8238 /* We need a stub. Figure out whether a long_branch or plt_branch
8239 is needed later. */
8240 return ppc_stub_long_branch;
5d1634d7 8241
721956f4 8242 return ppc_stub_none;
5d1634d7
AM		 8243}
8244
8245/* Build a .plt call stub. */
8246
4ce794b7 8247static inline bfd_byte *
176a0d42 8248build_plt_stub (bfd *obfd, bfd_byte *p, int offset, Elf_Internal_Rela *r)
5d1634d7
AM		 8249{
8250#define PPC_LO(v) ((v) & 0xffff)
8251#define PPC_HI(v) (((v) >> 16) & 0xffff)
8252#define PPC_HA(v) PPC_HI ((v) + 0x8000)
8253
ac2df442
AM		 8254 if (PPC_HA (offset) != 0)
8255 {
176a0d42
AM		 8256 if (r != NULL)
8257 {
8258 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
8259 r[1].r_offset = r[0].r_offset + 8;
8260 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
8261 r[1].r_addend = r[0].r_addend;
8262 if (PPC_HA (offset + 16) != PPC_HA (offset))
8263 {
8264 r[2].r_offset = r[1].r_offset + 4;
8265 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
8266 r[2].r_addend = r[0].r_addend;
8267 }
8268 else
8269 {
8270 r[2].r_offset = r[1].r_offset + 8;
8271 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
8272 r[2].r_addend = r[0].r_addend + 8;
8273 r[3].r_offset = r[2].r_offset + 4;
8274 r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
8275 r[3].r_addend = r[0].r_addend + 16;
8276 }
8277 }
ac2df442
AM		 8278 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
8279 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
8280 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
8281 if (PPC_HA (offset + 16) != PPC_HA (offset))
8282 {
8283 bfd_put_32 (obfd, ADDI_R12_R12 | PPC_LO (offset), p), p += 4;
8284 offset = 0;
8285 }
8286 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
8287 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset + 8), p), p += 4;
8288 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset + 16), p), p += 4;
8289 bfd_put_32 (obfd, BCTR, p), p += 4;
8290 }
8291 else
8292 {
176a0d42
AM		 8293 if (r != NULL)
8294 {
8295 r[0].r_offset += 4;
8296 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
8297 if (PPC_HA (offset + 16) != PPC_HA (offset))
8298 {
8299 r[1].r_offset = r[0].r_offset + 4;
8300 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
8301 r[1].r_addend = r[0].r_addend;
8302 }
8303 else
8304 {
8305 r[1].r_offset = r[0].r_offset + 8;
8306 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
8307 r[1].r_addend = r[0].r_addend + 16;
8308 r[2].r_offset = r[1].r_offset + 4;
8309 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
8310 r[2].r_addend = r[0].r_addend + 8;
8311 }
8312 }
ac2df442
AM		 8313 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
8314 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset), p), p += 4;
8315 if (PPC_HA (offset + 16) != PPC_HA (offset))
8316 {
8317 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
8318 offset = 0;
8319 }
8320 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
8321 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
8322 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
8323 bfd_put_32 (obfd, BCTR, p), p += 4;
8324 }
5d1634d7
AM		 8325 return p;
8326}
8327
176a0d42
AM		 8328static Elf_Internal_Rela *
8329get_relocs (asection *sec, int count)
8330{
8331 Elf_Internal_Rela *relocs;
8332 struct bfd_elf_section_data *elfsec_data;
8333
8334 elfsec_data = elf_section_data (sec);
8335 relocs = elfsec_data->relocs;
8336 if (relocs == NULL)
8337 {
8338 bfd_size_type relsize;
8339 relsize = sec->reloc_count * sizeof (*relocs);
8340 relocs = bfd_alloc (sec->owner, relsize);
8341 if (relocs == NULL)
8342 return NULL;
8343 elfsec_data->relocs = relocs;
8344 elfsec_data->rel_hdr.sh_size = (sec->reloc_count
8345 * sizeof (Elf64_External_Rela));
8346 elfsec_data->rel_hdr.sh_entsize = sizeof (Elf64_External_Rela);
8347 sec->reloc_count = 0;
8348 }
8349 relocs += sec->reloc_count;
8350 sec->reloc_count += count;
8351 return relocs;
8352}
8353
b34976b6 8354static bfd_boolean
4ce794b7 8355ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 8356{
721956f4
AM		 8357 struct ppc_stub_hash_entry *stub_entry;
8358 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 8359 struct bfd_link_info *info;
8360 struct ppc_link_hash_table *htab;
721956f4
AM		 8361 bfd_byte *loc;
8362 bfd_byte *p;
411e1bfb 8363 struct plt_entry *ent;
ee75fd95 8364 bfd_vma dest, off;
721956f4 8365 int size;
176a0d42 8366 Elf_Internal_Rela *r;
5d1634d7 8367
721956f4
AM		 8368 /* Massage our args to the form they really have. */
8369 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 8370 info = in_arg;
5d1634d7 8371
5d1634d7
AM		 8372 htab = ppc_hash_table (info);
8373
721956f4 8374 /* Make a note of the offset within the stubs for this entry. */
eea6121a 8375 stub_entry->stub_offset = stub_entry->stub_sec->size;
97b639ba 8376 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 8377
4ce794b7 8378 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 8379 switch (stub_entry->stub_type)
5d1634d7 8380 {
721956f4 8381 case ppc_stub_long_branch:
ad8e1ba5 8382 case ppc_stub_long_branch_r2off:
721956f4 8383 /* Branches are relative. This is where we are going to. */
ee75fd95
AM		 8384 off = dest = (stub_entry->target_value
8385 + stub_entry->target_section->output_offset
8386 + stub_entry->target_section->output_section->vma);
5d1634d7 8387
721956f4
AM		 8388 /* And this is where we are coming from. */
8389 off -= (stub_entry->stub_offset
97b639ba
AM		 8390 + stub_entry->stub_sec->output_offset
8391 + stub_entry->stub_sec->output_section->vma);
e86ce104 8392
ac2df442
AM		 8393 size = 4;
8394 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
ad8e1ba5
AM		 8395 {
8396 bfd_vma r2off;
8397
8398 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8399 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 8400 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 8401 loc += 4;
ac2df442
AM		 8402 size = 12;
8403 if (PPC_HA (r2off) != 0)
8404 {
8405 size = 16;
8406 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
8407 loc += 4;
8408 }
97b639ba 8409 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5 8410 loc += 4;
ac2df442 8411 off -= size - 4;
ad8e1ba5 8412 }
97b639ba 8413 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5 8414
5c3dead3
AM		 8415 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8416 {
8417 (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"),
8418 stub_entry->root.string);
8419 htab->stub_error = TRUE;
8420 return FALSE;
8421 }
ee75fd95
AM		 8422
8423 if (info->emitrelocations)
8424 {
176a0d42
AM		 8425 r = get_relocs (stub_entry->stub_sec, 1);
8426 if (r == NULL)
8427 return FALSE;
ee75fd95
AM		 8428 r->r_offset = loc - stub_entry->stub_sec->contents;
8429 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
8430 r->r_addend = dest;
8431 if (stub_entry->h != NULL)
8432 {
8433 struct elf_link_hash_entry **hashes;
8434 unsigned long symndx;
8435 struct ppc_link_hash_entry *h;
8436
8437 hashes = elf_sym_hashes (htab->stub_bfd);
8438 if (hashes == NULL)
8439 {
8440 bfd_size_type hsize;
8441
8442 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
8443 hashes = bfd_zalloc (htab->stub_bfd, hsize);
8444 if (hashes == NULL)
8445 return FALSE;
8446 elf_sym_hashes (htab->stub_bfd) = hashes;
8447 htab->stub_globals = 1;
8448 }
8449 symndx = htab->stub_globals++;
8450 h = stub_entry->h;
8451 hashes[symndx] = &h->elf;
8452 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
8453 if (h->oh != NULL && h->oh->is_func)
8454 h = h->oh;
8455 if (h->elf.root.u.def.section != stub_entry->target_section)
8456 /* H is an opd symbol. The addend must be zero. */
8457 r->r_addend = 0;
8458 else
8459 {
8460 off = (h->elf.root.u.def.value
8461 + h->elf.root.u.def.section->output_offset
8462 + h->elf.root.u.def.section->output_section->vma);
8463 r->r_addend -= off;
8464 }
8465 }
8466 }
721956f4 8467 break;
e86ce104 8468
721956f4 8469 case ppc_stub_plt_branch:
ad8e1ba5 8470 case ppc_stub_plt_branch_r2off:
721956f4
AM		 8471 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8472 stub_entry->root.string + 9,
b34976b6 8473 FALSE, FALSE);
721956f4
AM		 8474 if (br_entry == NULL)
8475 {
8476 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
5c3dead3 8477 stub_entry->root.string);
b34976b6
AM		 8478 htab->stub_error = TRUE;
8479 return FALSE;
721956f4
AM		 8480 }
8481
176a0d42
AM		 8482 dest = (stub_entry->target_value
8483 + stub_entry->target_section->output_offset
8484 + stub_entry->target_section->output_section->vma);
721956f4 8485
176a0d42 8486 bfd_put_64 (htab->brlt->owner, dest,
4ce794b7 8487 htab->brlt->contents + br_entry->offset);
721956f4 8488
f94498ff 8489 if (br_entry->iter == htab->stub_iteration)
721956f4 8490 {
f94498ff 8491 br_entry->iter = 0;
84f5d08e 8492
f94498ff 8493 if (htab->relbrlt != NULL)
84f5d08e 8494 {
f94498ff
AM		 8495 /* Create a reloc for the branch lookup table entry. */
8496 Elf_Internal_Rela rela;
8497 bfd_byte *rl;
8498
8499 rela.r_offset = (br_entry->offset
8500 + htab->brlt->output_offset
8501 + htab->brlt->output_section->vma);
8502 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 8503 rela.r_addend = dest;
f94498ff
AM		 8504
8505 rl = htab->relbrlt->contents;
8506 rl += (htab->relbrlt->reloc_count++
8507 * sizeof (Elf64_External_Rela));
8508 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
8509 }
8510 else if (info->emitrelocations)
8511 {
176a0d42
AM		 8512 r = get_relocs (htab->brlt, 1);
8513 if (r == NULL)
8514 return FALSE;
8515 /* brlt, being SEC_LINKER_CREATED does not go through the
8516 normal reloc processing. Symbols and offsets are not
8517 translated from input file to output file form, so
8518 set up the offset per the output file. */
f94498ff
AM		 8519 r->r_offset = (br_entry->offset
8520 + htab->brlt->output_offset
8521 + htab->brlt->output_section->vma);
8522 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 8523 r->r_addend = dest;
84f5d08e 8524 }
84f5d08e 8525 }
721956f4 8526
176a0d42
AM		 8527 dest = (br_entry->offset
8528 + htab->brlt->output_offset
8529 + htab->brlt->output_section->vma);
8530
8531 off = (dest
4ce794b7 8532 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 8533 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8534
ad8e1ba5 8535 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 8536 {
8537 (*_bfd_error_handler)
e86ce104 8538 (_("linkage table error against `%s'"),
721956f4 8539 stub_entry->root.string);
5d1634d7 8540 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 8541 htab->stub_error = TRUE;
8542 return FALSE;
5d1634d7 8543 }
41bd81ab 8544
176a0d42
AM		 8545 if (info->emitrelocations)
8546 {
8547 r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0));
8548 if (r == NULL)
8549 return FALSE;
8550 r[0].r_offset = loc - stub_entry->stub_sec->contents;
8551 if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
8552 r[0].r_offset += 4;
8553 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
8554 r[0].r_addend = dest;
8555 if (PPC_HA (off) != 0)
8556 {
8557 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
8558 r[1].r_offset = r[0].r_offset + 4;
8559 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
8560 r[1].r_addend = r[0].r_addend;
8561 }
8562 }
8563
ad8e1ba5
AM		 8564 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8565 {
176a0d42 8566 if (PPC_HA (off) != 0)
ac2df442
AM		 8567 {
8568 size = 16;
176a0d42 8569 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 8570 loc += 4;
176a0d42 8571 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (off), loc);
ac2df442
AM		 8572 }
8573 else
8574 {
8575 size = 12;
176a0d42 8576 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (off), loc);
ac2df442 8577 }
ad8e1ba5
AM		 8578 }
8579 else
8580 {
8581 bfd_vma r2off;
8582
8583 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8584 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 8585 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 8586 loc += 4;
ac2df442 8587 size = 20;
176a0d42 8588 if (PPC_HA (off) != 0)
ac2df442
AM		 8589 {
8590 size += 4;
176a0d42 8591 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 8592 loc += 4;
176a0d42 8593 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (off), loc);
ac2df442
AM		 8594 loc += 4;
8595 }
8596 else
8597 {
176a0d42 8598 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (off), loc);
ac2df442
AM		 8599 loc += 4;
8600 }
8601
8602 if (PPC_HA (r2off) != 0)
8603 {
8604 size += 4;
8605 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
8606 loc += 4;
8607 }
97b639ba 8608 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 8609 }
8610 loc += 4;
97b639ba 8611 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 8612 loc += 4;
97b639ba 8613 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 8614 break;
5d1634d7 8615
721956f4 8616 case ppc_stub_plt_call:
c862ae31
AM		 8617 /* Do the best we can for shared libraries built without
8618 exporting ".foo" for each "foo". This can happen when symbol
8619 versioning scripts strip all bar a subset of symbols. */
8387904d
AM		 8620 if (stub_entry->h->oh != NULL
8621 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined
34814b9f 8622 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak)
c862ae31
AM		 8623 {
8624 /* Point the symbol at the stub. There may be multiple stubs,
8625 we don't really care; The main thing is to make this sym
8f3bab57
AM		 8626 defined somewhere. Maybe defining the symbol in the stub
8627 section is a silly idea. If we didn't do this, htab->top_id
8628 could disappear. */
34814b9f
AM		 8629 stub_entry->h->oh->elf.root.type = bfd_link_hash_defined;
8630 stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec;
8631 stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset;
c862ae31
AM		 8632 }
8633
721956f4 8634 /* Now build the stub. */
176a0d42 8635 dest = (bfd_vma) -1;
411e1bfb
AM		 8636 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8637 if (ent->addend == stub_entry->addend)
8638 {
176a0d42 8639 dest = ent->plt.offset;
411e1bfb
AM		 8640 break;
8641 }
176a0d42 8642 if (dest >= (bfd_vma) -2)
721956f4
AM		 8643 abort ();
8644
176a0d42
AM		 8645 dest &= ~ (bfd_vma) 1;
8646 dest += (htab->plt->output_offset
8647 + htab->plt->output_section->vma);
8648
8649 off = (dest
8650 - elf_gp (htab->plt->output_section->owner)
8651 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8652
ad8e1ba5 8653 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 8654 {
8655 (*_bfd_error_handler)
8656 (_("linkage table error against `%s'"),
8657 stub_entry->h->elf.root.root.string);
8658 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 8659 htab->stub_error = TRUE;
8660 return FALSE;
721956f4
AM		 8661 }
8662
176a0d42
AM		 8663 r = NULL;
8664 if (info->emitrelocations)
8665 {
8666 r = get_relocs (stub_entry->stub_sec,
8667 (2 + (PPC_HA (off) != 0)
8668 + (PPC_HA (off + 16) == PPC_HA (off))));
8669 if (r == NULL)
8670 return FALSE;
8671 r[0].r_offset = loc - stub_entry->stub_sec->contents;
8672 r[0].r_addend = dest;
8673 }
8674 p = build_plt_stub (htab->stub_bfd, loc, off, r);
721956f4
AM		 8675 size = p - loc;
8676 break;
8677
8678 default:
8679 BFD_FAIL ();
b34976b6 8680 return FALSE;
721956f4
AM		 8681 }
8682
eea6121a 8683 stub_entry->stub_sec->size += size;
97b639ba 8684
ee75fd95 8685 if (htab->emit_stub_syms)
97b639ba
AM		 8686 {
8687 struct elf_link_hash_entry *h;
ee75fd95
AM		 8688 size_t len1, len2;
8689 char *name;
8690 const char *const stub_str[] = { "long_branch",
8691 "long_branch_r2off",
8692 "plt_branch",
8693 "plt_branch_r2off",
8694 "plt_call" };
8695
8696 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
8697 len2 = strlen (stub_entry->root.string);
8698 name = bfd_malloc (len1 + len2 + 2);
8699 if (name == NULL)
8700 return FALSE;
8701 memcpy (name, stub_entry->root.string, 9);
8702 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
8703 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
8704 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
97b639ba
AM		 8705 if (h == NULL)
8706 return FALSE;
8707 if (h->root.type == bfd_link_hash_new)
8708 {
8709 h->root.type = bfd_link_hash_defined;
8710 h->root.u.def.section = stub_entry->stub_sec;
8711 h->root.u.def.value = stub_entry->stub_offset;
f5385ebf
AM		 8712 h->ref_regular = 1;
8713 h->def_regular = 1;
8714 h->ref_regular_nonweak = 1;
8715 h->forced_local = 1;
8716 h->non_elf = 0;
97b639ba
AM		 8717 }
8718 }
8719
b34976b6 8720 return TRUE;
721956f4
AM		 8721}
8722
8723/* As above, but don't actually build the stub. Just bump offset so
8724 we know stub section sizes, and select plt_branch stubs where
8725 long_branch stubs won't do. */
8726
b34976b6 8727static bfd_boolean
4ce794b7 8728ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 8729{
8730 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 8731 struct bfd_link_info *info;
721956f4
AM		 8732 struct ppc_link_hash_table *htab;
8733 bfd_vma off;
8734 int size;
8735
8736 /* Massage our args to the form they really have. */
8737 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 8738 info = in_arg;
8739
8740 htab = ppc_hash_table (info);
721956f4
AM		 8741
8742 if (stub_entry->stub_type == ppc_stub_plt_call)
8743 {
411e1bfb 8744 struct plt_entry *ent;
58ac9f71 8745 off = (bfd_vma) -1;
411e1bfb
AM		 8746 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8747 if (ent->addend == stub_entry->addend)
8748 {
8749 off = ent->plt.offset & ~(bfd_vma) 1;
8750 break;
8751 }
58ac9f71 8752 if (off >= (bfd_vma) -2)
411e1bfb 8753 abort ();
4ce794b7
AM		 8754 off += (htab->plt->output_offset
8755 + htab->plt->output_section->vma
8756 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 8757 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8758
ad8e1ba5 8759 size = PLT_CALL_STUB_SIZE;
ac2df442
AM		 8760 if (PPC_HA (off) == 0)
8761 size -= 4;
4ce794b7 8762 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4 8763 size += 4;
176a0d42
AM		 8764 if (info->emitrelocations)
8765 {
8766 stub_entry->stub_sec->reloc_count
8767 += 2 + (PPC_HA (off) != 0) + (PPC_HA (off + 16) == PPC_HA (off));
8768 stub_entry->stub_sec->flags |= SEC_RELOC;
8769 }
721956f4
AM		 8770 }
8771 else
8772 {
ad8e1ba5
AM		 8773 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
8774 variants. */
ac2df442
AM		 8775 bfd_vma r2off = 0;
8776
721956f4
AM		 8777 off = (stub_entry->target_value
8778 + stub_entry->target_section->output_offset
8779 + stub_entry->target_section->output_section->vma);
eea6121a 8780 off -= (stub_entry->stub_sec->size
721956f4
AM		 8781 + stub_entry->stub_sec->output_offset
8782 + stub_entry->stub_sec->output_section->vma);
8783
ad8e1ba5
AM		 8784 /* Reset the stub type from the plt variant in case we now
8785 can reach with a shorter stub. */
8786 if (stub_entry->stub_type >= ppc_stub_plt_branch)
8787 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
8788
8789 size = 4;
8790 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
8791 {
ac2df442
AM		 8792 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8793 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8794 size = 12;
8795 if (PPC_HA (r2off) != 0)
8796 size = 16;
8797 off -= size - 4;
ad8e1ba5
AM		 8798 }
8799
8800 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 8801 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8802 {
8803 struct ppc_branch_hash_entry *br_entry;
8804
8805 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8806 stub_entry->root.string + 9,
b34976b6 8807 TRUE, FALSE);
721956f4
AM		 8808 if (br_entry == NULL)
8809 {
8810 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
5c3dead3 8811 stub_entry->root.string);
b34976b6
AM		 8812 htab->stub_error = TRUE;
8813 return FALSE;
721956f4
AM		 8814 }
8815
8816 if (br_entry->iter != htab->stub_iteration)
8817 {
8818 br_entry->iter = htab->stub_iteration;
eea6121a
AM		 8819 br_entry->offset = htab->brlt->size;
8820 htab->brlt->size += 8;
63bc6f6c 8821
ee75fd95 8822 if (htab->relbrlt != NULL)
eea6121a 8823 htab->relbrlt->size += sizeof (Elf64_External_Rela);
84f5d08e
AM		 8824 else if (info->emitrelocations)
8825 {
8826 htab->brlt->reloc_count += 1;
8827 htab->brlt->flags |= SEC_RELOC;
8828 }
721956f4 8829 }
ad8e1ba5
AM		 8830
8831 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
ac2df442
AM		 8832 off = (br_entry->offset
8833 + htab->brlt->output_offset
8834 + htab->brlt->output_section->vma
8835 - elf_gp (htab->brlt->output_section->owner)
8836 - htab->stub_group[stub_entry->id_sec->id].toc_off);
8837
176a0d42
AM		 8838 if (info->emitrelocations)
8839 {
8840 stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0);
8841 stub_entry->stub_sec->flags |= SEC_RELOC;
8842 }
8843
ac2df442
AM		 8844 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8845 {
8846 size = 12;
176a0d42 8847 if (PPC_HA (off) != 0)
ac2df442
AM		 8848 size = 16;
8849 }
8850 else
8851 {
8852 size = 20;
176a0d42 8853 if (PPC_HA (off) != 0)
ac2df442
AM		 8854 size += 4;
8855
8856 if (PPC_HA (r2off) != 0)
8857 size += 4;
8858 }
721956f4 8859 }
84f5d08e
AM		 8860 else if (info->emitrelocations)
8861 {
8862 stub_entry->stub_sec->reloc_count += 1;
8863 stub_entry->stub_sec->flags |= SEC_RELOC;
8864 }
721956f4
AM		 8865 }
8866
eea6121a 8867 stub_entry->stub_sec->size += size;
b34976b6 8868 return TRUE;
721956f4
AM		 8869}
8870
8871/* Set up various things so that we can make a list of input sections
8872 for each output section included in the link. Returns -1 on error,
cedb70c5 8873 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 8874
8875int
4c52953f
AM		 8876ppc64_elf_setup_section_lists (bfd *output_bfd,
8877 struct bfd_link_info *info,
8878 int no_multi_toc)
721956f4
AM		 8879{
8880 bfd *input_bfd;
734b6cf9 8881 int top_id, top_index, id;
721956f4 8882 asection *section;
734b6cf9 8883 asection **input_list;
721956f4
AM		 8884 bfd_size_type amt;
8885 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8886
4c52953f
AM		 8887 htab->no_multi_toc = no_multi_toc;
8888
4ce794b7 8889 if (htab->brlt == NULL)
721956f4
AM		 8890 return 0;
8891
1e2f5b6e 8892 /* Find the top input section id. */
3d6f9012 8893 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 8894 input_bfd != NULL;
8895 input_bfd = input_bfd->link_next)
8896 {
721956f4
AM		 8897 for (section = input_bfd->sections;
8898 section != NULL;
8899 section = section->next)
8900 {
8901 if (top_id < section->id)
8902 top_id = section->id;
8903 }
8904 }
721956f4 8905
8f3bab57 8906 htab->top_id = top_id;
721956f4 8907 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 8908 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 8909 if (htab->stub_group == NULL)
8910 return -1;
8911
3d6f9012
AM		 8912 /* Set toc_off for com, und, abs and ind sections. */
8913 for (id = 0; id < 3; id++)
8914 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 8915
3d6f9012 8916 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 8917
8918 /* We can't use output_bfd->section_count here to find the top output
8919 section index as some sections may have been removed, and
8423293d 8920 strip_excluded_output_sections doesn't renumber the indices. */
734b6cf9
AM		 8921 for (section = output_bfd->sections, top_index = 0;
8922 section != NULL;
8923 section = section->next)
8924 {
8925 if (top_index < section->index)
8926 top_index = section->index;
8927 }
8928
8929 htab->top_index = top_index;
8930 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 8931 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 8932 htab->input_list = input_list;
8933 if (input_list == NULL)
8934 return -1;
8935
721956f4
AM		 8936 return 1;
8937}
8938
e717da7e
AM		 8939/* The linker repeatedly calls this function for each TOC input section
8940 and linker generated GOT section. Group input bfds such that the toc
8941 within a group is less than 64k in size. Will break with cute linker
8942 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 8943
8944void
4ce794b7 8945ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 8946{
8947 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8948
4c52953f
AM		 8949 if (!htab->no_multi_toc)
8950 {
8951 bfd_vma addr = isec->output_offset + isec->output_section->vma;
8952 bfd_vma off = addr - htab->toc_curr;
8953
8954 if (off + isec->size > 0x10000)
8955 htab->toc_curr = addr;
99877b66 8956
4c52953f
AM		 8957 elf_gp (isec->owner) = (htab->toc_curr
8958 - elf_gp (isec->output_section->owner)
8959 + TOC_BASE_OFF);
8960 }
ad8e1ba5
AM		 8961}
8962
8963/* Called after the last call to the above function. */
8964
8965void
4c52953f 8966ppc64_elf_reinit_toc (bfd *output_bfd, struct bfd_link_info *info)
ad8e1ba5
AM		 8967{
8968 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5 8969
4c52953f
AM		 8970 htab->multi_toc_needed = htab->toc_curr != elf_gp (output_bfd);
8971
ad8e1ba5
AM		 8972 /* toc_curr tracks the TOC offset used for code sections below in
8973 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 8974 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 8975}
8976
9b5ecbd0
AM		 8977/* No toc references were found in ISEC. If the code in ISEC makes no
8978 calls, then there's no need to use toc adjusting stubs when branching
8979 into ISEC. Actually, indirect calls from ISEC are OK as they will
4c52953f
AM		 8980 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
8981 needed, and 2 if a cyclical call-graph was found but no other reason
8982 for a stub was detected. If called from the top level, a return of
8983 2 means the same as a return of 0. */
9b5ecbd0
AM		 8984
8985static int
4ce794b7 8986toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0 8987{
4c52953f
AM		 8988 Elf_Internal_Rela *relstart, *rel;
8989 Elf_Internal_Sym *local_syms;
9b5ecbd0 8990 int ret;
4c52953f 8991 struct ppc_link_hash_table *htab;
9b5ecbd0 8992
772119ce
AM		 8993 /* We know none of our code bearing sections will need toc stubs. */
8994 if ((isec->flags & SEC_LINKER_CREATED) != 0)
8995 return 0;
8996
eea6121a 8997 if (isec->size == 0)
082c50f8
AM		 8998 return 0;
8999
4c52953f
AM		 9000 if (isec->output_section == NULL)
9001 return 0;
9002
4c52953f
AM		 9003 if (isec->reloc_count == 0)
9004 return 0;
9005
9006 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
9007 info->keep_memory);
9008 if (relstart == NULL)
9009 return -1;
9010
9011 /* Look for branches to outside of this section. */
9012 local_syms = NULL;
9013 ret = 0;
9014 htab = ppc_hash_table (info);
9015 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
9b5ecbd0 9016 {
4c52953f
AM		 9017 enum elf_ppc64_reloc_type r_type;
9018 unsigned long r_symndx;
9019 struct elf_link_hash_entry *h;
9020 Elf_Internal_Sym *sym;
9021 asection *sym_sec;
74f0fb50 9022 struct _opd_sec_data *opd;
4c52953f
AM		 9023 bfd_vma sym_value;
9024 bfd_vma dest;
9025
9026 r_type = ELF64_R_TYPE (rel->r_info);
9027 if (r_type != R_PPC64_REL24
9028 && r_type != R_PPC64_REL14
9029 && r_type != R_PPC64_REL14_BRTAKEN
9030 && r_type != R_PPC64_REL14_BRNTAKEN)
9031 continue;
9032
9033 r_symndx = ELF64_R_SYM (rel->r_info);
9034 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
9035 isec->owner))
9b5ecbd0 9036 {
4c52953f
AM		 9037 ret = -1;
9038 break;
9b5ecbd0 9039 }
9b5ecbd0 9040
2917689a
AM		 9041 /* Calls to dynamic lib functions go through a plt call stub
9042 that uses r2. Branches to undefined symbols might be a call
9043 using old-style dot symbols that can be satisfied by a plt
9044 call into a new-style dynamic library. */
4c52953f 9045 if (sym_sec == NULL)
2917689a
AM		 9046 {
9047 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
9048 if (eh != NULL
9049 && eh->oh != NULL
9050 && eh->oh->elf.plt.plist != NULL)
9051 {
9052 ret = 1;
9053 break;
9054 }
4c52953f 9055
2917689a
AM		 9056 /* Ignore other undefined symbols. */
9057 continue;
9058 }
9059
9060 /* Assume branches to other sections not included in the link need
9061 stubs too, to cover -R and absolute syms. */
4c52953f
AM		 9062 if (sym_sec->output_section == NULL)
9063 {
9064 ret = 1;
9065 break;
9066 }
9067
9068 if (h == NULL)
9069 sym_value = sym->st_value;
9070 else
9071 {
9072 if (h->root.type != bfd_link_hash_defined
9073 && h->root.type != bfd_link_hash_defweak)
9074 abort ();
9075 sym_value = h->root.u.def.value;
9076 }
9077 sym_value += rel->r_addend;
9078
9079 /* If this branch reloc uses an opd sym, find the code section. */
74f0fb50
AM		 9080 opd = get_opd_info (sym_sec);
9081 if (opd != NULL)
4c52953f 9082 {
74f0fb50 9083 if (h == NULL && opd->adjust != NULL)
4c52953f
AM		 9084 {
9085 long adjust;
9086
74f0fb50 9087 adjust = opd->adjust[sym->st_value / 8];
4c52953f
AM		 9088 if (adjust == -1)
9089 /* Assume deleted functions won't ever be called. */
9090 continue;
9091 sym_value += adjust;
9092 }
9093
9094 dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL);
9095 if (dest == (bfd_vma) -1)
9096 continue;
9097 }
9098 else
9099 dest = (sym_value
9100 + sym_sec->output_offset
9101 + sym_sec->output_section->vma);
9102
9103 /* Ignore branch to self. */
9104 if (sym_sec == isec)
9105 continue;
9106
9107 /* If the called function uses the toc, we need a stub. */
9108 if (sym_sec->has_toc_reloc
9109 || sym_sec->makes_toc_func_call)
9110 {
9111 ret = 1;
9112 break;
9113 }
9114
9115 /* Assume any branch that needs a long branch stub might in fact
9116 need a plt_branch stub. A plt_branch stub uses r2. */
9117 else if (dest - (isec->output_offset
9118 + isec->output_section->vma
9119 + rel->r_offset) + (1 << 25) >= (2 << 25))
9b5ecbd0
AM		 9120 {
9121 ret = 1;
9122 break;
9123 }
4c52953f
AM		 9124
9125 /* If calling back to a section in the process of being tested, we
9126 can't say for sure that no toc adjusting stubs are needed, so
9127 don't return zero. */
9128 else if (sym_sec->call_check_in_progress)
9129 ret = 2;
9130
9131 /* Branches to another section that itself doesn't have any TOC
9132 references are OK. Recursively call ourselves to check. */
9133 else if (sym_sec->id <= htab->top_id
9134 && htab->stub_group[sym_sec->id].toc_off == 0)
9135 {
9136 int recur;
9137
9138 /* Mark current section as indeterminate, so that other
9139 sections that call back to current won't be marked as
9140 known. */
9141 isec->call_check_in_progress = 1;
9142 recur = toc_adjusting_stub_needed (info, sym_sec);
9143 isec->call_check_in_progress = 0;
9144
9145 if (recur < 0)
9146 {
9147 /* An error. Exit. */
9148 ret = -1;
9149 break;
9150 }
9151 else if (recur <= 1)
9152 {
9153 /* Known result. Mark as checked and set section flag. */
9154 htab->stub_group[sym_sec->id].toc_off = 1;
9155 if (recur != 0)
9156 {
9157 sym_sec->makes_toc_func_call = 1;
9158 ret = 1;
9159 break;
9160 }
9161 }
9162 else
9163 {
9164 /* Unknown result. Continue checking. */
9165 ret = 2;
9166 }
9167 }
9b5ecbd0
AM		 9168 }
9169
4c52953f 9170 if (local_syms != NULL
0ffa91dd 9171 && (elf_symtab_hdr (isec->owner).contents != (unsigned char *) local_syms))
4c52953f
AM		 9172 free (local_syms);
9173 if (elf_section_data (isec)->relocs != relstart)
9174 free (relstart);
9175
9b5ecbd0
AM		 9176 return ret;
9177}
9178
721956f4
AM		 9179/* The linker repeatedly calls this function for each input section,
9180 in the order that input sections are linked into output sections.
9181 Build lists of input sections to determine groupings between which
9182 we may insert linker stubs. */
9183
9b5ecbd0 9184bfd_boolean
4ce794b7 9185ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 9186{
9187 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9188
734b6cf9
AM		 9189 if ((isec->output_section->flags & SEC_CODE) != 0
9190 && isec->output_section->index <= htab->top_index)
721956f4 9191 {
734b6cf9 9192 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 9193 /* Steal the link_sec pointer for our list. */
721956f4 9194#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 9195 /* This happens to make the list in reverse order,
9196 which is what we want. */
734b6cf9
AM		 9197 PREV_SEC (isec) = *list;
9198 *list = isec;
721956f4 9199 }
ad8e1ba5 9200
4c52953f 9201 if (htab->multi_toc_needed)
9b5ecbd0 9202 {
4c52953f
AM		 9203 /* If a code section has a function that uses the TOC then we need
9204 to use the right TOC (obviously). Also, make sure that .opd gets
9205 the correct TOC value for R_PPC64_TOC relocs that don't have or
f94498ff
AM		 9206 can't find their function symbol (shouldn't ever happen now).
9207 Also specially treat .fixup for the linux kernel. .fixup
9208 contains branches, but only back to the function that hit an
9209 exception. */
9210 if (isec->has_toc_reloc
9211 || (isec->flags & SEC_CODE) == 0
9212 || strcmp (isec->name, ".fixup") == 0)
4c52953f
AM		 9213 {
9214 if (elf_gp (isec->owner) != 0)
9215 htab->toc_curr = elf_gp (isec->owner);
9216 }
9217 else if (htab->stub_group[isec->id].toc_off == 0)
9218 {
9219 int ret = toc_adjusting_stub_needed (info, isec);
9220 if (ret < 0)
9221 return FALSE;
9222 else
9223 isec->makes_toc_func_call = ret & 1;
9224 }
9b5ecbd0 9225 }
ad8e1ba5
AM		 9226
9227 /* Functions that don't use the TOC can belong in any TOC group.
9228 Use the last TOC base. This happens to make _init and _fini
9229 pasting work. */
9230 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 9231 return TRUE;
721956f4
AM		 9232}
9233
9234/* See whether we can group stub sections together. Grouping stub
9235 sections may result in fewer stubs. More importantly, we need to
9236 put all .init* and .fini* stubs at the beginning of the .init or
9237 .fini output sections respectively, because glibc splits the
9238 _init and _fini functions into multiple parts. Putting a stub in
9239 the middle of a function is not a good idea. */
9240
9241static void
4ce794b7
AM		 9242group_sections (struct ppc_link_hash_table *htab,
9243 bfd_size_type stub_group_size,
9244 bfd_boolean stubs_always_before_branch)
721956f4 9245{
7c8fe5c4
AM		 9246 asection **list;
9247 bfd_size_type stub14_group_size;
9248 bfd_boolean suppress_size_errors;
9249
9250 suppress_size_errors = FALSE;
9251 stub14_group_size = stub_group_size;
9252 if (stub_group_size == 1)
9253 {
9254 /* Default values. */
9255 if (stubs_always_before_branch)
9256 {
9257 stub_group_size = 0x1e00000;
9258 stub14_group_size = 0x7800;
9259 }
9260 else
9261 {
9262 stub_group_size = 0x1c00000;
9263 stub14_group_size = 0x7000;
9264 }
9265 suppress_size_errors = TRUE;
9266 }
9267
9268 list = htab->input_list + htab->top_index;
734b6cf9 9269 do
721956f4 9270 {
734b6cf9
AM		 9271 asection *tail = *list;
9272 while (tail != NULL)
721956f4 9273 {
734b6cf9
AM		 9274 asection *curr;
9275 asection *prev;
9276 bfd_size_type total;
9277 bfd_boolean big_sec;
9278 bfd_vma curr_toc;
9279
9280 curr = tail;
eea6121a 9281 total = tail->size;
7c8fe5c4
AM		 9282 big_sec = total > (ppc64_elf_section_data (tail)->has_14bit_branch
9283 ? stub14_group_size : stub_group_size);
9284 if (big_sec && !suppress_size_errors)
5c3dead3
AM		 9285 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
9286 tail->owner, tail);
734b6cf9
AM		 9287 curr_toc = htab->stub_group[tail->id].toc_off;
9288
9289 while ((prev = PREV_SEC (curr)) != NULL
9290 && ((total += curr->output_offset - prev->output_offset)
7c8fe5c4
AM		 9291 < (ppc64_elf_section_data (prev)->has_14bit_branch
9292 ? stub14_group_size : stub_group_size))
ad8e1ba5 9293 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 9294 curr = prev;
9295
9296 /* OK, the size from the start of CURR to the end is less
9297 than stub_group_size and thus can be handled by one stub
9298 section. (or the tail section is itself larger than
9299 stub_group_size, in which case we may be toast.) We
9300 should really be keeping track of the total size of stubs
9301 added here, as stubs contribute to the final output
9302 section size. That's a little tricky, and this way will
9303 only break if stubs added make the total size more than
9304 2^25, ie. for the default stub_group_size, if stubs total
9305 more than 2097152 bytes, or nearly 75000 plt call stubs. */
9306 do
721956f4
AM		 9307 {
9308 prev = PREV_SEC (tail);
734b6cf9 9309 /* Set up this stub group. */
721956f4
AM		 9310 htab->stub_group[tail->id].link_sec = curr;
9311 }
734b6cf9
AM		 9312 while (tail != curr && (tail = prev) != NULL);
9313
9314 /* But wait, there's more! Input sections up to stub_group_size
9315 bytes before the stub section can be handled by it too.
9316 Don't do this if we have a really large section after the
9317 stubs, as adding more stubs increases the chance that
9318 branches may not reach into the stub section. */
9319 if (!stubs_always_before_branch && !big_sec)
9320 {
9321 total = 0;
9322 while (prev != NULL
9323 && ((total += tail->output_offset - prev->output_offset)
7c8fe5c4
AM		 9324 < (ppc64_elf_section_data (prev)->has_14bit_branch
9325 ? stub14_group_size : stub_group_size))
734b6cf9
AM		 9326 && htab->stub_group[prev->id].toc_off == curr_toc)
9327 {
9328 tail = prev;
9329 prev = PREV_SEC (tail);
9330 htab->stub_group[tail->id].link_sec = curr;
9331 }
9332 }
9333 tail = prev;
721956f4
AM		 9334 }
9335 }
734b6cf9
AM		 9336 while (list-- != htab->input_list);
9337 free (htab->input_list);
721956f4
AM		 9338#undef PREV_SEC
9339}
9340
721956f4
AM		 9341/* Determine and set the size of the stub section for a final link.
9342
9343 The basic idea here is to examine all the relocations looking for
9344 PC-relative calls to a target that is unreachable with a "bl"
9345 instruction. */
9346
b34976b6 9347bfd_boolean
4ce794b7 9348ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 9349 struct bfd_link_info *info,
9350 bfd_signed_vma group_size,
9351 asection *(*add_stub_section) (const char *, asection *),
9352 void (*layout_sections_again) (void))
721956f4
AM		 9353{
9354 bfd_size_type stub_group_size;
b34976b6 9355 bfd_boolean stubs_always_before_branch;
721956f4
AM		 9356 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9357
9358 /* Stash our params away. */
721956f4
AM		 9359 htab->add_stub_section = add_stub_section;
9360 htab->layout_sections_again = layout_sections_again;
9361 stubs_always_before_branch = group_size < 0;
9362 if (group_size < 0)
9363 stub_group_size = -group_size;
9364 else
9365 stub_group_size = group_size;
721956f4
AM		 9366
9367 group_sections (htab, stub_group_size, stubs_always_before_branch);
9368
721956f4
AM		 9369 while (1)
9370 {
9371 bfd *input_bfd;
9372 unsigned int bfd_indx;
9373 asection *stub_sec;
721956f4
AM		 9374
9375 htab->stub_iteration += 1;
721956f4
AM		 9376
9377 for (input_bfd = info->input_bfds, bfd_indx = 0;
9378 input_bfd != NULL;
9379 input_bfd = input_bfd->link_next, bfd_indx++)
9380 {
9381 Elf_Internal_Shdr *symtab_hdr;
9382 asection *section;
6cdc0ccc 9383 Elf_Internal_Sym *local_syms = NULL;
721956f4 9384
0c8d6e5c 9385 if (!is_ppc64_elf (input_bfd))
67f93c31
AM		 9386 continue;
9387
721956f4 9388 /* We'll need the symbol table in a second. */
0ffa91dd 9389 symtab_hdr = &elf_symtab_hdr (input_bfd);
721956f4
AM		 9390 if (symtab_hdr->sh_info == 0)
9391 continue;
9392
721956f4
AM		 9393 /* Walk over each section attached to the input bfd. */
9394 for (section = input_bfd->sections;
9395 section != NULL;
9396 section = section->next)
9397 {
721956f4 9398 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 9399
9400 /* If there aren't any relocs, then there's nothing more
9401 to do. */
9402 if ((section->flags & SEC_RELOC) == 0
12c0f757
AM		 9403 || (section->flags & SEC_ALLOC) == 0
9404 || (section->flags & SEC_LOAD) == 0
9405 || (section->flags & SEC_CODE) == 0
721956f4
AM		 9406 || section->reloc_count == 0)
9407 continue;
9408
9409 /* If this section is a link-once section that will be
9410 discarded, then don't create any stubs. */
9411 if (section->output_section == NULL
9412 || section->output_section->owner != output_bfd)
9413 continue;
9414
1e2f5b6e
AM		 9415 /* Get the relocs. */
9416 internal_relocs
4ce794b7 9417 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 9418 info->keep_memory);
721956f4 9419 if (internal_relocs == NULL)
1e2f5b6e 9420 goto error_ret_free_local;
721956f4
AM		 9421
9422 /* Now examine each relocation. */
9423 irela = internal_relocs;
9424 irelaend = irela + section->reloc_count;
9425 for (; irela < irelaend; irela++)
9426 {
4ce794b7
AM		 9427 enum elf_ppc64_reloc_type r_type;
9428 unsigned int r_indx;
721956f4
AM		 9429 enum ppc_stub_type stub_type;
9430 struct ppc_stub_hash_entry *stub_entry;
8387904d 9431 asection *sym_sec, *code_sec;
721956f4
AM		 9432 bfd_vma sym_value;
9433 bfd_vma destination;
8843416a 9434 bfd_boolean ok_dest;
721956f4 9435 struct ppc_link_hash_entry *hash;
8387904d 9436 struct ppc_link_hash_entry *fdh;
411e1bfb
AM		 9437 struct elf_link_hash_entry *h;
9438 Elf_Internal_Sym *sym;
721956f4
AM		 9439 char *stub_name;
9440 const asection *id_sec;
74f0fb50 9441 struct _opd_sec_data *opd;
721956f4
AM		 9442
9443 r_type = ELF64_R_TYPE (irela->r_info);
9444 r_indx = ELF64_R_SYM (irela->r_info);
9445
4ce794b7 9446 if (r_type >= R_PPC64_max)
721956f4
AM		 9447 {
9448 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 9449 goto error_ret_free_internal;
721956f4
AM		 9450 }
9451
9452 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 9453 if (r_type != R_PPC64_REL24
9454 && r_type != R_PPC64_REL14
9455 && r_type != R_PPC64_REL14_BRTAKEN
9456 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 9457 continue;
9458
9459 /* Now determine the call target, its name, value,
9460 section. */
411e1bfb
AM		 9461 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
9462 r_indx, input_bfd))
9463 goto error_ret_free_internal;
9464 hash = (struct ppc_link_hash_entry *) h;
9465
8843416a 9466 ok_dest = FALSE;
8387904d 9467 fdh = NULL;
7fe2b9a6 9468 sym_value = 0;
411e1bfb 9469 if (hash == NULL)
721956f4 9470 {
411e1bfb 9471 sym_value = sym->st_value;
8843416a 9472 ok_dest = TRUE;
721956f4 9473 }
7fe2b9a6
AM		 9474 else if (hash->elf.root.type == bfd_link_hash_defined
9475 || hash->elf.root.type == bfd_link_hash_defweak)
9476 {
9477 sym_value = hash->elf.root.u.def.value;
9478 if (sym_sec->output_section != NULL)
9479 ok_dest = TRUE;
9480 }
9481 else if (hash->elf.root.type == bfd_link_hash_undefweak
9482 || hash->elf.root.type == bfd_link_hash_undefined)
721956f4 9483 {
99877b66 9484 /* Recognise an old ABI func code entry sym, and
7fe2b9a6
AM		 9485 use the func descriptor sym instead if it is
9486 defined. */
ceb1f1ef 9487 if (hash->elf.root.root.string[0] == '.'
8387904d
AM		 9488 && (fdh = get_fdh (hash, htab)) != NULL)
9489 {
8387904d
AM		 9490 if (fdh->elf.root.type == bfd_link_hash_defined
9491 || fdh->elf.root.type == bfd_link_hash_defweak)
9492 {
9493 sym_sec = fdh->elf.root.u.def.section;
9494 sym_value = fdh->elf.root.u.def.value;
9495 if (sym_sec->output_section != NULL)
9496 ok_dest = TRUE;
9497 }
99877b66
AM		 9498 else
9499 fdh = NULL;
8387904d 9500 }
7fe2b9a6
AM		 9501 }
9502 else
9503 {
9504 bfd_set_error (bfd_error_bad_value);
9505 goto error_ret_free_internal;
721956f4
AM		 9506 }
9507
8843416a
AM		 9508 destination = 0;
9509 if (ok_dest)
9510 {
9511 sym_value += irela->r_addend;
9512 destination = (sym_value
9513 + sym_sec->output_offset
9514 + sym_sec->output_section->vma);
9515 }
9516
8387904d 9517 code_sec = sym_sec;
74f0fb50
AM		 9518 opd = get_opd_info (sym_sec);
9519 if (opd != NULL)
8387904d
AM		 9520 {
9521 bfd_vma dest;
9522
74f0fb50 9523 if (hash == NULL && opd->adjust != NULL)
8387904d 9524 {
74f0fb50 9525 long adjust = opd->adjust[sym_value / 8];
8387904d
AM		 9526 if (adjust == -1)
9527 continue;
9528 sym_value += adjust;
9529 }
9530 dest = opd_entry_value (sym_sec, sym_value,
9531 &code_sec, &sym_value);
9532 if (dest != (bfd_vma) -1)
9533 {
9534 destination = dest;
9535 if (fdh != NULL)
9536 {
9537 /* Fixup old ABI sym to point at code
9538 entry. */
99877b66 9539 hash->elf.root.type = bfd_link_hash_defweak;
8387904d
AM		 9540 hash->elf.root.u.def.section = code_sec;
9541 hash->elf.root.u.def.value = sym_value;
9542 }
9543 }
9544 }
9545
721956f4
AM		 9546 /* Determine what (if any) linker stub is needed. */
9547 stub_type = ppc_type_of_stub (section, irela, &hash,
9548 destination);
ad8e1ba5
AM		 9549
9550 if (stub_type != ppc_stub_plt_call)
9551 {
9552 /* Check whether we need a TOC adjusting stub.
9553 Since the linker pastes together pieces from
9554 different object files when creating the
9555 _init and _fini functions, it may be that a
9556 call to what looks like a local sym is in
9557 fact a call needing a TOC adjustment. */
8387904d
AM		 9558 if (code_sec != NULL
9559 && code_sec->output_section != NULL
9560 && (htab->stub_group[code_sec->id].toc_off
9b5ecbd0 9561 != htab->stub_group[section->id].toc_off)
4c52953f
AM		 9562 && (code_sec->has_toc_reloc
9563 || code_sec->makes_toc_func_call))
ad8e1ba5
AM		 9564 stub_type = ppc_stub_long_branch_r2off;
9565 }
9566
721956f4
AM		 9567 if (stub_type == ppc_stub_none)
9568 continue;
9569
411e1bfb
AM		 9570 /* __tls_get_addr calls might be eliminated. */
9571 if (stub_type != ppc_stub_plt_call
9572 && hash != NULL
8387904d
AM		 9573 && (hash == htab->tls_get_addr
9574 || hash == htab->tls_get_addr_fd)
411e1bfb
AM		 9575 && section->has_tls_reloc
9576 && irela != internal_relocs)
9577 {
9578 /* Get tls info. */
e7b938ca 9579 char *tls_mask;
411e1bfb 9580
0d4792f7 9581 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
411e1bfb
AM		 9582 irela - 1, input_bfd))
9583 goto error_ret_free_internal;
e7b938ca 9584 if (*tls_mask != 0)
411e1bfb
AM		 9585 continue;
9586 }
9587
721956f4
AM		 9588 /* Support for grouping stub sections. */
9589 id_sec = htab->stub_group[section->id].link_sec;
9590
9591 /* Get the name of this stub. */
9592 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
9593 if (!stub_name)
9594 goto error_ret_free_internal;
9595
9596 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 9597 stub_name, FALSE, FALSE);
721956f4
AM		 9598 if (stub_entry != NULL)
9599 {
9600 /* The proper stub has already been created. */
9601 free (stub_name);
9602 continue;
9603 }
9604
9605 stub_entry = ppc_add_stub (stub_name, section, htab);
9606 if (stub_entry == NULL)
9607 {
9608 free (stub_name);
6cdc0ccc
AM		 9609 error_ret_free_internal:
9610 if (elf_section_data (section)->relocs == NULL)
9611 free (internal_relocs);
9612 error_ret_free_local:
9613 if (local_syms != NULL
9614 && (symtab_hdr->contents
9615 != (unsigned char *) local_syms))
9616 free (local_syms);
b34976b6 9617 return FALSE;
721956f4
AM		 9618 }
9619
ad8e1ba5 9620 stub_entry->stub_type = stub_type;
721956f4 9621 stub_entry->target_value = sym_value;
8387904d 9622 stub_entry->target_section = code_sec;
721956f4 9623 stub_entry->h = hash;
411e1bfb 9624 stub_entry->addend = irela->r_addend;
ee75fd95
AM		 9625
9626 if (stub_entry->h != NULL)
9627 htab->stub_globals += 1;
721956f4
AM		 9628 }
9629
9630 /* We're done with the internal relocs, free them. */
6cdc0ccc 9631 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 9632 free (internal_relocs);
721956f4 9633 }
6cdc0ccc
AM		 9634
9635 if (local_syms != NULL
9636 && symtab_hdr->contents != (unsigned char *) local_syms)
9637 {
9638 if (!info->keep_memory)
9639 free (local_syms);
9640 else
9641 symtab_hdr->contents = (unsigned char *) local_syms;
9642 }
721956f4
AM		 9643 }
9644
5c3dead3 9645 /* We may have added some stubs. Find out the new size of the
721956f4
AM		 9646 stub sections. */
9647 for (stub_sec = htab->stub_bfd->sections;
9648 stub_sec != NULL;
9649 stub_sec = stub_sec->next)
e717da7e 9650 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
ee75fd95 9651 {
5c3dead3 9652 stub_sec->rawsize = stub_sec->size;
ee75fd95
AM		 9653 stub_sec->size = 0;
9654 stub_sec->reloc_count = 0;
84f5d08e 9655 stub_sec->flags &= ~SEC_RELOC;
ee75fd95 9656 }
eea6121a
AM		 9657
9658 htab->brlt->size = 0;
84f5d08e
AM		 9659 htab->brlt->reloc_count = 0;
9660 htab->brlt->flags &= ~SEC_RELOC;
ee75fd95 9661 if (htab->relbrlt != NULL)
eea6121a 9662 htab->relbrlt->size = 0;
721956f4 9663
63bc6f6c 9664 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4 9665
176a0d42
AM		 9666 if (info->emitrelocations
9667 && htab->glink != NULL && htab->glink->size != 0)
9668 {
9669 htab->glink->reloc_count = 1;
9670 htab->glink->flags |= SEC_RELOC;
9671 }
9672
5c3dead3
AM		 9673 for (stub_sec = htab->stub_bfd->sections;
9674 stub_sec != NULL;
9675 stub_sec = stub_sec->next)
9676 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9677 && stub_sec->rawsize != stub_sec->size)
9678 break;
9679
9680 /* Exit from this loop when no stubs have been added, and no stubs
9681 have changed size. */
9682 if (stub_sec == NULL)
9683 break;
9684
721956f4
AM		 9685 /* Ask the linker to do its stuff. */
9686 (*htab->layout_sections_again) ();
9687 }
9688
c456f082 9689 /* It would be nice to strip htab->brlt from the output if the
afbe61cf
AM		 9690 section is empty, but it's too late. If we strip sections here,
9691 the dynamic symbol table is corrupted since the section symbol
9692 for the stripped section isn't written. */
721956f4 9693
b34976b6 9694 return TRUE;
721956f4
AM		 9695}
9696
9697/* Called after we have determined section placement. If sections
805fc799 9698 move, we'll be called again. Provide a value for TOCstart. */
721956f4 9699
805fc799 9700bfd_vma
4ce794b7 9701ppc64_elf_toc (bfd *obfd)
721956f4 9702{
805fc799
AM		 9703 asection *s;
9704 bfd_vma TOCstart;
721956f4 9705
805fc799
AM		 9706 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
9707 order. The TOC starts where the first of these sections starts. */
9708 s = bfd_get_section_by_name (obfd, ".got");
9709 if (s == NULL)
9710 s = bfd_get_section_by_name (obfd, ".toc");
9711 if (s == NULL)
9712 s = bfd_get_section_by_name (obfd, ".tocbss");
9713 if (s == NULL)
9714 s = bfd_get_section_by_name (obfd, ".plt");
9715 if (s == NULL)
9716 {
9717 /* This may happen for
9718 o references to TOC base (SYM@toc / TOC[tc0]) without a
9719 .toc directive
9720 o bad linker script
9721 o --gc-sections and empty TOC sections
9722
9723 FIXME: Warn user? */
9724
9725 /* Look for a likely section. We probably won't even be
9726 using TOCstart. */
9727 for (s = obfd->sections; s != NULL; s = s->next)
9728 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
9729 == (SEC_ALLOC | SEC_SMALL_DATA))
9730 break;
721956f4 9731 if (s == NULL)
805fc799
AM		 9732 for (s = obfd->sections; s != NULL; s = s->next)
9733 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
9734 == (SEC_ALLOC | SEC_SMALL_DATA))
9735 break;
721956f4 9736 if (s == NULL)
805fc799
AM		 9737 for (s = obfd->sections; s != NULL; s = s->next)
9738 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
9739 break;
721956f4 9740 if (s == NULL)
805fc799
AM		 9741 for (s = obfd->sections; s != NULL; s = s->next)
9742 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
9743 break;
9744 }
721956f4 9745
805fc799
AM		 9746 TOCstart = 0;
9747 if (s != NULL)
9748 TOCstart = s->output_section->vma + s->output_offset;
721956f4 9749
805fc799 9750 return TOCstart;
721956f4
AM		 9751}
9752
9753/* Build all the stubs associated with the current output file.
9754 The stubs are kept in a hash table attached to the main linker
9755 hash table. This function is called via gldelf64ppc_finish. */
9756
b34976b6 9757bfd_boolean
4ce794b7
AM		 9758ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
9759 struct bfd_link_info *info,
9760 char **stats)
5d1634d7
AM		 9761{
9762 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 9763 asection *stub_sec;
5d1634d7 9764 bfd_byte *p;
e717da7e 9765 int stub_sec_count = 0;
5d1634d7 9766
ad8e1ba5 9767 htab->emit_stub_syms = emit_stub_syms;
eea6121a
AM		 9768
9769 /* Allocate memory to hold the linker stubs. */
721956f4
AM		 9770 for (stub_sec = htab->stub_bfd->sections;
9771 stub_sec != NULL;
9772 stub_sec = stub_sec->next)
eea6121a
AM		 9773 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9774 && stub_sec->size != 0)
e717da7e 9775 {
eea6121a
AM		 9776 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
9777 if (stub_sec->contents == NULL)
9778 return FALSE;
9779 /* We want to check that built size is the same as calculated
9780 size. rawsize is a convenient location to use. */
9781 stub_sec->rawsize = stub_sec->size;
9782 stub_sec->size = 0;
e717da7e 9783 }
5d1634d7 9784
23eb7e01 9785 if (htab->glink != NULL && htab->glink->size != 0)
5d1634d7 9786 {
9f951329 9787 unsigned int indx;
ad8e1ba5 9788 bfd_vma plt0;
9f951329 9789
721956f4 9790 /* Build the .glink plt call stub. */
97b639ba
AM		 9791 if (htab->emit_stub_syms)
9792 {
9793 struct elf_link_hash_entry *h;
9794 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
9795 if (h == NULL)
9796 return FALSE;
9797 if (h->root.type == bfd_link_hash_new)
9798 {
9799 h->root.type = bfd_link_hash_defined;
9800 h->root.u.def.section = htab->glink;
ee4bf8d2 9801 h->root.u.def.value = 8;
f5385ebf
AM		 9802 h->ref_regular = 1;
9803 h->def_regular = 1;
9804 h->ref_regular_nonweak = 1;
9805 h->forced_local = 1;
9806 h->non_elf = 0;
97b639ba
AM		 9807 }
9808 }
176a0d42
AM		 9809 plt0 = htab->plt->output_section->vma + htab->plt->output_offset - 16;
9810 if (info->emitrelocations)
9811 {
9812 Elf_Internal_Rela *r = get_relocs (htab->glink, 1);
9813 if (r == NULL)
9814 return FALSE;
9815 r->r_offset = (htab->glink->output_offset
9816 + htab->glink->output_section->vma);
9817 r->r_info = ELF64_R_INFO (0, R_PPC64_REL64);
9818 r->r_addend = plt0;
9819 }
4ce794b7 9820 p = htab->glink->contents;
176a0d42 9821 plt0 -= htab->glink->output_section->vma + htab->glink->output_offset;
ee4bf8d2
AM		 9822 bfd_put_64 (htab->glink->owner, plt0, p);
9823 p += 8;
9824 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
ad8e1ba5 9825 p += 4;
ee4bf8d2 9826 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
ad8e1ba5 9827 p += 4;
ee4bf8d2 9828 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
ad8e1ba5 9829 p += 4;
ee4bf8d2 9830 bfd_put_32 (htab->glink->owner, LD_R2_M16R11, p);
ad8e1ba5 9831 p += 4;
ee4bf8d2 9832 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
ad8e1ba5 9833 p += 4;
ee4bf8d2 9834 bfd_put_32 (htab->glink->owner, ADD_R12_R2_R11, p);
ad8e1ba5 9835 p += 4;
ee4bf8d2 9836 bfd_put_32 (htab->glink->owner, LD_R11_0R12, p);
ad8e1ba5 9837 p += 4;
4ce794b7 9838 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 9839 p += 4;
4ce794b7 9840 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 9841 p += 4;
4ce794b7 9842 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 9843 p += 4;
4ce794b7 9844 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5 9845 p += 4;
ee4bf8d2
AM		 9846 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
9847 {
9848 bfd_put_32 (htab->glink->owner, NOP, p);
9849 p += 4;
9850 }
ad8e1ba5 9851
9f951329
AM		 9852 /* Build the .glink lazy link call stubs. */
9853 indx = 0;
eea6121a 9854 while (p < htab->glink->contents + htab->glink->size)
9f951329
AM		 9855 {
9856 if (indx < 0x8000)
9857 {
4ce794b7 9858 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 9859 p += 4;
9860 }
9861 else
9862 {
4ce794b7 9863 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 9864 p += 4;
4ce794b7 9865 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 9866 p += 4;
9867 }
4ce794b7 9868 bfd_put_32 (htab->glink->owner,
ee4bf8d2 9869 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
a16d5acb 9870 indx++;
9f951329
AM		 9871 p += 4;
9872 }
eea6121a 9873 htab->glink->rawsize = p - htab->glink->contents;
5d1634d7 9874 }
5d1634d7 9875
eea6121a 9876 if (htab->brlt->size != 0)
721956f4 9877 {
4ce794b7 9878 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 9879 htab->brlt->size);
4ce794b7 9880 if (htab->brlt->contents == NULL)
b34976b6 9881 return FALSE;
721956f4 9882 }
ee75fd95 9883 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
63bc6f6c
AM		 9884 {
9885 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 9886 htab->relbrlt->size);
63bc6f6c
AM		 9887 if (htab->relbrlt->contents == NULL)
9888 return FALSE;
9889 }
5d1634d7 9890
721956f4
AM		 9891 /* Build the stubs as directed by the stub hash table. */
9892 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 9893
aa8a7074
AM		 9894 if (htab->relbrlt != NULL)
9895 htab->relbrlt->reloc_count = 0;
9896
721956f4
AM		 9897 for (stub_sec = htab->stub_bfd->sections;
9898 stub_sec != NULL;
9899 stub_sec = stub_sec->next)
e717da7e
AM		 9900 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
9901 {
9902 stub_sec_count += 1;
eea6121a 9903 if (stub_sec->rawsize != stub_sec->size)
e717da7e
AM		 9904 break;
9905 }
5d1634d7 9906
721956f4 9907 if (stub_sec != NULL
eea6121a 9908 || htab->glink->rawsize != htab->glink->size)
5d1634d7 9909 {
b34976b6 9910 htab->stub_error = TRUE;
721956f4 9911 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 9912 }
721956f4 9913
d2a300cf
AM		 9914 if (htab->stub_error)
9915 return FALSE;
9916
9917 if (stats != NULL)
9918 {
9919 *stats = bfd_malloc (500);
9920 if (*stats == NULL)
9921 return FALSE;
9922
ee75fd95 9923 sprintf (*stats, _("linker stubs in %u group%s\n"
d2a300cf
AM		 9924 " branch %lu\n"
9925 " toc adjust %lu\n"
9926 " long branch %lu\n"
9927 " long toc adj %lu\n"
9928 " plt call %lu"),
e717da7e 9929 stub_sec_count,
ee75fd95 9930 stub_sec_count == 1 ? "" : "s",
4ce794b7
AM		 9931 htab->stub_count[ppc_stub_long_branch - 1],
9932 htab->stub_count[ppc_stub_long_branch_r2off - 1],
9933 htab->stub_count[ppc_stub_plt_branch - 1],
9934 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
9935 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 9936 }
9937 return TRUE;
5bd4f169
AM		 9938}
9939
99877b66
AM		 9940/* This function undoes the changes made by add_symbol_adjust. */
9941
9942static bfd_boolean
9943undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
9944{
9945 struct ppc_link_hash_entry *eh;
9946
9947 if (h->root.type == bfd_link_hash_indirect)
9948 return TRUE;
9949
9950 if (h->root.type == bfd_link_hash_warning)
9951 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9952
9953 eh = (struct ppc_link_hash_entry *) h;
9954 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
9955 return TRUE;
9956
9957 eh->elf.root.type = bfd_link_hash_undefined;
9958 return TRUE;
9959}
9960
9961void
9962ppc64_elf_restore_symbols (struct bfd_link_info *info)
9963{
9964 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9965 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
9966}
9967
60124e18
AM		 9968/* What to do when ld finds relocations against symbols defined in
9969 discarded sections. */
9970
9971static unsigned int
9972ppc64_elf_action_discarded (asection *sec)
9973{
9974 if (strcmp (".opd", sec->name) == 0)
9975 return 0;
9976
9977 if (strcmp (".toc", sec->name) == 0)
9978 return 0;
9979
bce50a28
JJ		 9980 if (strcmp (".toc1", sec->name) == 0)
9981 return 0;
9982
60124e18
AM		 9983 return _bfd_elf_default_action_discarded (sec);
9984}
9985
5bd4f169
AM		 9986/* The RELOCATE_SECTION function is called by the ELF backend linker
9987 to handle the relocations for a section.
9988
9989 The relocs are always passed as Rela structures; if the section
9990 actually uses Rel structures, the r_addend field will always be
9991 zero.
9992
9993 This function is responsible for adjust the section contents as
9994 necessary, and (if using Rela relocs and generating a
1049f94e 9995 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 9996 necessary.
9997
9998 This function does not have to worry about setting the reloc
9999 address or the reloc symbol index.
10000
10001 LOCAL_SYMS is a pointer to the swapped in local symbols.
10002
10003 LOCAL_SECTIONS is an array giving the section in the input file
10004 corresponding to the st_shndx field of each local symbol.
10005
10006 The global hash table entry for the global symbols can be found
10007 via elf_sym_hashes (input_bfd).
10008
1049f94e 10009 When generating relocatable output, this function must handle
5bd4f169
AM		 10010 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
10011 going to be the section symbol corresponding to the output
10012 section, which means that the addend must be adjusted
10013 accordingly. */
10014
b34976b6 10015static bfd_boolean
4ce794b7
AM		 10016ppc64_elf_relocate_section (bfd *output_bfd,
10017 struct bfd_link_info *info,
10018 bfd *input_bfd,
10019 asection *input_section,
10020 bfd_byte *contents,
10021 Elf_Internal_Rela *relocs,
10022 Elf_Internal_Sym *local_syms,
10023 asection **local_sections)
5bd4f169 10024{
65f38f15 10025 struct ppc_link_hash_table *htab;
5bd4f169
AM		 10026 Elf_Internal_Shdr *symtab_hdr;
10027 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 10028 Elf_Internal_Rela *rel;
10029 Elf_Internal_Rela *relend;
411e1bfb
AM		 10030 Elf_Internal_Rela outrel;
10031 bfd_byte *loc;
411e1bfb 10032 struct got_entry **local_got_ents;
5bd4f169 10033 bfd_vma TOCstart;
b34976b6
AM		 10034 bfd_boolean ret = TRUE;
10035 bfd_boolean is_opd;
96e0dda4 10036 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 10037 bfd_boolean is_power4 = FALSE;
4fe5ca5b 10038 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
5bd4f169 10039
65f38f15 10040 /* Initialize howto table if needed. */
5bd4f169 10041 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 10042 ppc_howto_init ();
10043
65f38f15 10044 htab = ppc_hash_table (info);
ee75fd95
AM		 10045
10046 /* Don't relocate stub sections. */
10047 if (input_section->owner == htab->stub_bfd)
10048 return TRUE;
10049
0c8d6e5c 10050 BFD_ASSERT (is_ppc64_elf (input_bfd));
0ffa91dd 10051
411e1bfb 10052 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 10053 TOCstart = elf_gp (output_bfd);
0ffa91dd 10054 symtab_hdr = &elf_symtab_hdr (input_bfd);
5bd4f169 10055 sym_hashes = elf_sym_hashes (input_bfd);
7c8fe5c4 10056 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
65f38f15 10057
5bd4f169
AM		 10058 rel = relocs;
10059 relend = relocs + input_section->reloc_count;
10060 for (; rel < relend; rel++)
10061 {
04c9666a 10062 enum elf_ppc64_reloc_type r_type;
4cc603a5 10063 bfd_vma addend, orig_addend;
5bd4f169
AM		 10064 bfd_reloc_status_type r;
10065 Elf_Internal_Sym *sym;
10066 asection *sec;
039b3fef
AM		 10067 struct elf_link_hash_entry *h_elf;
10068 struct ppc_link_hash_entry *h;
10069 struct ppc_link_hash_entry *fdh;
5bd4f169 10070 const char *sym_name;
0d4792f7 10071 unsigned long r_symndx, toc_symndx;
951fd09b 10072 char tls_mask, tls_gd, tls_type;
0d4792f7 10073 char sym_type;
5bd4f169 10074 bfd_vma relocation;
b34976b6
AM		 10075 bfd_boolean unresolved_reloc;
10076 bfd_boolean warned;
50bc7936 10077 unsigned long insn, mask;
721956f4
AM		 10078 struct ppc_stub_hash_entry *stub_entry;
10079 bfd_vma max_br_offset;
10080 bfd_vma from;
5bd4f169 10081
4ce794b7 10082 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 10083 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 10084
10085 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
10086 symbol of the previous ADDR64 reloc. The symbol gives us the
10087 proper TOC base to use. */
10088 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
10089 && rel != relocs
10090 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
10091 && is_opd)
10092 r_symndx = ELF64_R_SYM (rel[-1].r_info);
10093
4ce794b7
AM		 10094 sym = NULL;
10095 sec = NULL;
039b3fef 10096 h_elf = NULL;
4ce794b7 10097 sym_name = NULL;
b34976b6
AM		 10098 unresolved_reloc = FALSE;
10099 warned = FALSE;
4cc603a5 10100 orig_addend = rel->r_addend;
65f38f15 10101
0b13192e 10102 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 10103 {
10104 /* It's a local symbol. */
74f0fb50 10105 struct _opd_sec_data *opd;
4025353c 10106
5bd4f169
AM		 10107 sym = local_syms + r_symndx;
10108 sec = local_sections[r_symndx];
26c61ae5 10109 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
0d4792f7 10110 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 10111 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
74f0fb50
AM		 10112 opd = get_opd_info (sec);
10113 if (opd != NULL && opd->adjust != NULL)
1e2f5b6e 10114 {
74f0fb50 10115 long adjust = opd->adjust[(sym->st_value + rel->r_addend) / 8];
4025353c
AM		 10116 if (adjust == -1)
10117 relocation = 0;
10118 else
4cc603a5
AM		 10119 {
10120 /* If this is a relocation against the opd section sym
10121 and we have edited .opd, adjust the reloc addend so
10122 that ld -r and ld --emit-relocs output is correct.
10123 If it is a reloc against some other .opd symbol,
10124 then the symbol value will be adjusted later. */
10125 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
10126 rel->r_addend += adjust;
10127 else
10128 relocation += adjust;
10129 }
1e2f5b6e 10130 }
5bd4f169
AM		 10131 }
10132 else
10133 {
b2a8e766
AM		 10134 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
10135 r_symndx, symtab_hdr, sym_hashes,
039b3fef 10136 h_elf, sec, relocation,
b2a8e766 10137 unresolved_reloc, warned);
039b3fef
AM		 10138 sym_name = h_elf->root.root.string;
10139 sym_type = h_elf->type;
5bd4f169 10140 }
039b3fef 10141 h = (struct ppc_link_hash_entry *) h_elf;
5bd4f169 10142
ab96bf03
AM		 10143 if (sec != NULL && elf_discarded_section (sec))
10144 {
10145 /* For relocs against symbols from removed linkonce sections,
10146 or sections discarded by a linker script, we just want the
10147 section contents zeroed. Avoid any special processing. */
10148 _bfd_clear_contents (ppc64_elf_howto_table[r_type], input_bfd,
10149 contents + rel->r_offset);
10150 rel->r_info = 0;
10151 rel->r_addend = 0;
10152 continue;
10153 }
10154
10155 if (info->relocatable)
10156 continue;
10157
951fd09b
AM		 10158 /* TLS optimizations. Replace instruction sequences and relocs
10159 based on information we collected in tls_optimize. We edit
10160 RELOCS so that --emit-relocs will output something sensible
10161 for the final instruction stream. */
10162 tls_mask = 0;
10163 tls_gd = 0;
0d4792f7 10164 toc_symndx = 0;
d881513a 10165 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 10166 {
10167 if (h != NULL)
039b3fef 10168 tls_mask = h->tls_mask;
411e1bfb
AM		 10169 else if (local_got_ents != NULL)
10170 {
e7b938ca
AM		 10171 char *lgot_masks;
10172 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
10173 tls_mask = lgot_masks[r_symndx];
411e1bfb 10174 }
0d4792f7
AM		 10175 if (tls_mask == 0 && r_type == R_PPC64_TLS)
10176 {
10177 /* Check for toc tls entries. */
10178 char *toc_tls;
10179
10180 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
10181 rel, input_bfd))
10182 return FALSE;
10183
10184 if (toc_tls)
10185 tls_mask = *toc_tls;
10186 }
10187 }
10188
10189 /* Check that tls relocs are used with tls syms, and non-tls
10190 relocs are used with non-tls syms. */
10191 if (r_symndx != 0
10192 && r_type != R_PPC64_NONE
10193 && (h == NULL
039b3fef
AM		 10194 || h->elf.root.type == bfd_link_hash_defined
10195 || h->elf.root.type == bfd_link_hash_defweak)
0d4792f7
AM		 10196 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
10197 {
10198 if (r_type == R_PPC64_TLS && tls_mask != 0)
10199 /* R_PPC64_TLS is OK against a symbol in the TOC. */
10200 ;
10201 else
10202 (*_bfd_error_handler)
10203 (sym_type == STT_TLS
d003868e
AM		 10204 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
10205 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
10206 input_bfd,
10207 input_section,
0d4792f7
AM		 10208 (long) rel->r_offset,
10209 ppc64_elf_howto_table[r_type]->name,
10210 sym_name);
411e1bfb
AM		 10211 }
10212
10213 /* Ensure reloc mapping code below stays sane. */
10214 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
10215 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
10216 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
10217 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
10218 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
10219 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
10220 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
10221 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
10222 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
10223 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
10224 abort ();
0d4792f7 10225
411e1bfb
AM		 10226 switch (r_type)
10227 {
10228 default:
411e1bfb
AM		 10229 break;
10230
10231 case R_PPC64_TOC16:
10232 case R_PPC64_TOC16_LO:
10233 case R_PPC64_TOC16_DS:
10234 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 10235 {
10236 /* Check for toc tls entries. */
10237 char *toc_tls;
951fd09b 10238 int retval;
411e1bfb 10239
0d4792f7
AM		 10240 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
10241 rel, input_bfd);
951fd09b 10242 if (retval == 0)
411e1bfb
AM		 10243 return FALSE;
10244
10245 if (toc_tls)
10246 {
951fd09b 10247 tls_mask = *toc_tls;
411e1bfb
AM		 10248 if (r_type == R_PPC64_TOC16_DS
10249 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 10250 {
10251 if (tls_mask != 0
10252 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
10253 goto toctprel;
10254 }
411e1bfb 10255 else
951fd09b
AM		 10256 {
10257 /* If we found a GD reloc pair, then we might be
10258 doing a GD->IE transition. */
10259 if (retval == 2)
10260 {
10261 tls_gd = TLS_TPRELGD;
10262 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 10263 goto tls_ldgd_opt;
951fd09b
AM		 10264 }
10265 else if (retval == 3)
10266 {
10267 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
102890f0 10268 goto tls_ldgd_opt;
951fd09b
AM		 10269 }
10270 }
411e1bfb
AM		 10271 }
10272 }
10273 break;
10274
10275 case R_PPC64_GOT_TPREL16_DS:
10276 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 10277 if (tls_mask != 0
10278 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 10279 {
81407a69 10280 toctprel:
4fe5ca5b 10281 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
411e1bfb
AM		 10282 insn &= 31 << 21;
10283 insn |= 0x3c0d0000; /* addis 0,13,0 */
4fe5ca5b 10284 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
411e1bfb 10285 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 10286 if (toc_symndx != 0)
10287 {
10288 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
10289 /* We changed the symbol. Start over in order to
10290 get h, sym, sec etc. right. */
10291 rel--;
10292 continue;
10293 }
10294 else
10295 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 10296 }
10297 break;
10298
10299 case R_PPC64_TLS:
951fd09b
AM		 10300 if (tls_mask != 0
10301 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 10302 {
50bc7936 10303 bfd_vma rtra;
411e1bfb 10304 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 10305 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 10306 == ((31 << 26) | (13 << 11)))
10307 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 10308 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 10309 == ((31 << 26) | (13 << 16)))
10310 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
10311 else
10312 abort ();
10313 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
10314 /* add -> addi. */
10315 insn = 14 << 26;
10316 else if ((insn & (31 << 1)) == 23 << 1
10317 && ((insn & (31 << 6)) < 14 << 6
10318 || ((insn & (31 << 6)) >= 16 << 6
10319 && (insn & (31 << 6)) < 24 << 6)))
10320 /* load and store indexed -> dform. */
10321 insn = (32 | ((insn >> 6) & 31)) << 26;
10322 else if ((insn & (31 << 1)) == 21 << 1
10323 && (insn & (0x1a << 6)) == 0)
10324 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
10325 insn = (((58 | ((insn >> 6) & 4)) << 26)
10326 | ((insn >> 6) & 1));
10327 else if ((insn & (31 << 1)) == 21 << 1
10328 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
10329 /* lwax -> lwa. */
10330 insn = (58 << 26) | 2;
10331 else
10332 abort ();
10333 insn |= rtra;
10334 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb 10335 /* Was PPC64_TLS which sits on insn boundary, now
4fe5ca5b
GM		 10336 PPC64_TPREL16_LO which is at low-order half-word. */
10337 rel->r_offset += d_offset;
0d4792f7
AM		 10338 r_type = R_PPC64_TPREL16_LO;
10339 if (toc_symndx != 0)
10340 {
10341 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
10342 /* We changed the symbol. Start over in order to
10343 get h, sym, sec etc. right. */
10344 rel--;
10345 continue;
10346 }
10347 else
10348 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 10349 }
10350 break;
10351
411e1bfb
AM		 10352 case R_PPC64_GOT_TLSGD16_HI:
10353 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 10354 tls_gd = TLS_TPRELGD;
10355 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
10356 goto tls_gdld_hi;
10357 break;
10358
411e1bfb
AM		 10359 case R_PPC64_GOT_TLSLD16_HI:
10360 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 10361 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 10362 {
951fd09b
AM		 10363 tls_gdld_hi:
10364 if ((tls_mask & tls_gd) != 0)
10365 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
10366 + R_PPC64_GOT_TPREL16_DS);
10367 else
411e1bfb 10368 {
951fd09b 10369 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 10370 rel->r_offset -= d_offset;
951fd09b 10371 r_type = R_PPC64_NONE;
411e1bfb 10372 }
951fd09b 10373 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 10374 }
10375 break;
10376
951fd09b
AM		 10377 case R_PPC64_GOT_TLSGD16:
10378 case R_PPC64_GOT_TLSGD16_LO:
10379 tls_gd = TLS_TPRELGD;
10380 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 10381 goto tls_ldgd_opt;
951fd09b 10382 break;
411e1bfb 10383
951fd09b
AM		 10384 case R_PPC64_GOT_TLSLD16:
10385 case R_PPC64_GOT_TLSLD16_LO:
10386 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
10387 {
102890f0
AM		 10388 bfd_vma insn1, insn2, insn3;
10389 bfd_vma offset;
10390
10391 tls_ldgd_opt:
10392 /* We know that the next reloc is on a tls_get_addr
10393 call, since ppc64_elf_tls_optimize checks this. */
10394 offset = rel[1].r_offset;
10395 insn1 = bfd_get_32 (output_bfd,
10396 contents + rel->r_offset - d_offset);
10397 insn3 = bfd_get_32 (output_bfd,
10398 contents + offset + 4);
10399 if ((tls_mask & tls_gd) != 0)
411e1bfb 10400 {
102890f0
AM		 10401 /* IE */
10402 insn1 &= (1 << 26) - (1 << 2);
10403 insn1 |= 58 << 26; /* ld */
10404 insn2 = 0x7c636a14; /* add 3,3,13 */
10405 rel[1].r_info = ELF64_R_INFO (ELF64_R_SYM (rel[1].r_info),
10406 R_PPC64_NONE);
10407 if ((tls_mask & TLS_EXPLICIT) == 0)
10408 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
10409 + R_PPC64_GOT_TPREL16_DS);
411e1bfb 10410 else
102890f0
AM		 10411 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
10412 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10413 }
10414 else
10415 {
10416 /* LE */
10417 insn1 = 0x3c6d0000; /* addis 3,13,0 */
10418 insn2 = 0x38630000; /* addi 3,3,0 */
10419 if (tls_gd == 0)
951fd09b 10420 {
102890f0
AM		 10421 /* Was an LD reloc. */
10422 r_symndx = 0;
10423 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
10424 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
951fd09b 10425 }
102890f0
AM		 10426 else if (toc_symndx != 0)
10427 r_symndx = toc_symndx;
10428 r_type = R_PPC64_TPREL16_HA;
10429 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10430 rel[1].r_info = ELF64_R_INFO (r_symndx,
10431 R_PPC64_TPREL16_LO);
10432 rel[1].r_offset += d_offset;
10433 }
10434 if (insn3 == NOP
10435 || insn3 == CROR_151515 || insn3 == CROR_313131)
10436 {
10437 insn3 = insn2;
10438 insn2 = NOP;
10439 rel[1].r_offset += 4;
10440 }
10441 bfd_put_32 (output_bfd, insn1,
10442 contents + rel->r_offset - d_offset);
10443 bfd_put_32 (output_bfd, insn2, contents + offset);
10444 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
10445 if (tls_gd == 0 || toc_symndx != 0)
10446 {
10447 /* We changed the symbol. Start over in order
10448 to get h, sym, sec etc. right. */
10449 rel--;
10450 continue;
411e1bfb 10451 }
411e1bfb 10452 }
411e1bfb
AM		 10453 break;
10454
10455 case R_PPC64_DTPMOD64:
951fd09b
AM		 10456 if (rel + 1 < relend
10457 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
10458 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 10459 {
951fd09b
AM		 10460 if ((tls_mask & TLS_GD) == 0)
10461 {
10462 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
10463 if ((tls_mask & TLS_TPRELGD) != 0)
10464 r_type = R_PPC64_TPREL64;
10465 else
10466 {
4ce794b7 10467 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 10468 r_type = R_PPC64_NONE;
10469 }
10470 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10471 }
10472 }
10473 else
10474 {
10475 if ((tls_mask & TLS_LD) == 0)
411e1bfb 10476 {
4ce794b7 10477 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 10478 r_type = R_PPC64_NONE;
951fd09b 10479 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 10480 }
411e1bfb
AM		 10481 }
10482 break;
10483
10484 case R_PPC64_TPREL64:
951fd09b 10485 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 10486 {
10487 r_type = R_PPC64_NONE;
10488 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
10489 }
10490 break;
10491 }
10492
10493 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 10494 insn = 0;
b25116a9
AM		 10495 max_br_offset = 1 << 25;
10496 addend = rel->r_addend;
65f38f15 10497 switch (r_type)
5bd4f169
AM		 10498 {
10499 default:
65f38f15 10500 break;
5bd4f169 10501
65f38f15
AM		 10502 /* Branch taken prediction relocations. */
10503 case R_PPC64_ADDR14_BRTAKEN:
10504 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 10505 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
10506 /* Fall thru. */
65f38f15 10507
86c76c7b 10508 /* Branch not taken prediction relocations. */
65f38f15
AM		 10509 case R_PPC64_ADDR14_BRNTAKEN:
10510 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 10511 insn |= bfd_get_32 (output_bfd,
10512 contents + rel->r_offset) & ~(0x01 << 21);
b25116a9 10513 /* Fall thru. */
86c76c7b 10514
b25116a9
AM		 10515 case R_PPC64_REL14:
10516 max_br_offset = 1 << 15;
10517 /* Fall thru. */
5bd4f169 10518
65f38f15 10519 case R_PPC64_REL24:
ad8e1ba5
AM		 10520 /* Calls to functions with a different TOC, such as calls to
10521 shared objects, need to alter the TOC pointer. This is
10522 done using a linkage stub. A REL24 branching to these
10523 linkage stubs needs to be followed by a nop, as the nop
10524 will be replaced with an instruction to restore the TOC
10525 base pointer. */
b25116a9 10526 stub_entry = NULL;
8387904d 10527 fdh = h;
ad8e1ba5 10528 if (((h != NULL
039b3fef
AM		 10529 && (((fdh = h->oh) != NULL
10530 && fdh->elf.plt.plist != NULL)
10531 || (fdh = h)->elf.plt.plist != NULL))
8387904d 10532 || (sec != NULL
ad8e1ba5 10533 && sec->output_section != NULL
b25116a9 10534 && sec->id <= htab->top_id
ad8e1ba5
AM		 10535 && (htab->stub_group[sec->id].toc_off
10536 != htab->stub_group[input_section->id].toc_off)))
721956f4 10537 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 10538 rel, htab)) != NULL
10539 && (stub_entry->stub_type == ppc_stub_plt_call
10540 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
10541 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 10542 {
b25116a9 10543 bfd_boolean can_plt_call = FALSE;
721956f4 10544
eea6121a 10545 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 10546 {
b25116a9
AM		 10547 unsigned long nop;
10548 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
10549 if (nop == NOP
10550 || nop == CROR_151515 || nop == CROR_313131)
41bd81ab 10551 {
4ce794b7 10552 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 10553 contents + rel->r_offset + 4);
b25116a9 10554 can_plt_call = TRUE;
41bd81ab 10555 }
5bd4f169 10556 }
721956f4
AM		 10557
10558 if (!can_plt_call)
10559 {
ad8e1ba5
AM		 10560 if (stub_entry->stub_type == ppc_stub_plt_call)
10561 {
10562 /* If this is a plain branch rather than a branch
4fa1c237
AM		 10563 and link, don't require a nop. However, don't
10564 allow tail calls in a shared library as they
10565 will result in r2 being corrupted. */
b25116a9
AM		 10566 unsigned long br;
10567 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
4fa1c237 10568 if (info->executable && (br & 1) == 0)
b25116a9 10569 can_plt_call = TRUE;
15b552e9
AM		 10570 else
10571 stub_entry = NULL;
ad8e1ba5 10572 }
6ab189d5 10573 else if (h != NULL
039b3fef 10574 && strcmp (h->elf.root.root.string,
6ab189d5
AM		 10575 ".__libc_start_main") == 0)
10576 {
10577 /* Allow crt1 branch to go via a toc adjusting stub. */
b25116a9 10578 can_plt_call = TRUE;
6ab189d5 10579 }
ad8e1ba5
AM		 10580 else
10581 {
10582 if (strcmp (input_section->output_section->name,
10583 ".init") == 0
10584 || strcmp (input_section->output_section->name,
10585 ".fini") == 0)
10586 (*_bfd_error_handler)
d003868e 10587 (_("%B(%A+0x%lx): automatic multiple TOCs "
ad8e1ba5
AM		 10588 "not supported using your crt files; "
10589 "recompile with -mminimal-toc or upgrade gcc"),
d003868e
AM		 10590 input_bfd,
10591 input_section,
ad8e1ba5
AM		 10592 (long) rel->r_offset);
10593 else
10594 (*_bfd_error_handler)
d003868e 10595 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
ad8e1ba5
AM		 10596 "does not allow automatic multiple TOCs; "
10597 "recompile with -mminimal-toc or "
10598 "-fno-optimize-sibling-calls, "
10599 "or make `%s' extern"),
d003868e
AM		 10600 input_bfd,
10601 input_section,
ad8e1ba5
AM		 10602 (long) rel->r_offset,
10603 sym_name,
10604 sym_name);
10605 bfd_set_error (bfd_error_bad_value);
10606 ret = FALSE;
10607 }
721956f4
AM		 10608 }
10609
b25116a9
AM		 10610 if (can_plt_call
10611 && stub_entry->stub_type == ppc_stub_plt_call)
10612 unresolved_reloc = FALSE;
10613 }
10614
8387904d
AM		 10615 if (stub_entry == NULL
10616 && get_opd_info (sec) != NULL)
10617 {
10618 /* The branch destination is the value of the opd entry. */
4cc603a5
AM		 10619 bfd_vma off = (relocation + addend
10620 - sec->output_section->vma
10621 - sec->output_offset);
8387904d
AM		 10622 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
10623 if (dest != (bfd_vma) -1)
10624 {
10625 relocation = dest;
10626 addend = 0;
10627 }
10628 }
10629
b25116a9
AM		 10630 /* If the branch is out of reach we ought to have a long
10631 branch stub. */
10632 from = (rel->r_offset
10633 + input_section->output_offset
10634 + input_section->output_section->vma);
10635
10636 if (stub_entry == NULL
4cc603a5 10637 && (relocation + addend - from + max_br_offset
b25116a9
AM		 10638 >= 2 * max_br_offset)
10639 && r_type != R_PPC64_ADDR14_BRTAKEN
10640 && r_type != R_PPC64_ADDR14_BRNTAKEN)
039b3fef
AM		 10641 stub_entry = ppc_get_stub_entry (input_section, sec, h, rel,
10642 htab);
b25116a9
AM		 10643
10644 if (stub_entry != NULL)
10645 {
10646 /* Munge up the value and addend so that we call the stub
10647 rather than the procedure directly. */
10648 relocation = (stub_entry->stub_offset
10649 + stub_entry->stub_sec->output_offset
10650 + stub_entry->stub_sec->output_section->vma);
10651 addend = 0;
10652 }
10653
10654 if (insn != 0)
10655 {
10656 if (is_power4)
721956f4 10657 {
b25116a9
AM		 10658 /* Set 'a' bit. This is 0b00010 in BO field for branch
10659 on CR(BI) insns (BO == 001at or 011at), and 0b01000
10660 for branch on CTR insns (BO == 1a00t or 1a01t). */
10661 if ((insn & (0x14 << 21)) == (0x04 << 21))
10662 insn |= 0x02 << 21;
10663 else if ((insn & (0x14 << 21)) == (0x10 << 21))
10664 insn |= 0x08 << 21;
10665 else
10666 break;
10667 }
10668 else
10669 {
10670 /* Invert 'y' bit if not the default. */
4cc603a5 10671 if ((bfd_signed_vma) (relocation + addend - from) < 0)
b25116a9 10672 insn ^= 0x01 << 21;
721956f4 10673 }
b25116a9
AM		 10674
10675 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5bd4f169 10676 }
e86ce104 10677
06da1e8e
AM		 10678 /* NOP out calls to undefined weak functions.
10679 We can thus call a weak function without first
10680 checking whether the function is defined. */
b25116a9 10681 else if (h != NULL
039b3fef 10682 && h->elf.root.type == bfd_link_hash_undefweak
b25116a9
AM		 10683 && r_type == R_PPC64_REL24
10684 && relocation == 0
4cc603a5 10685 && addend == 0)
e86ce104 10686 {
06da1e8e
AM		 10687 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
10688 continue;
e86ce104 10689 }
65f38f15
AM		 10690 break;
10691 }
5bd4f169 10692
65f38f15 10693 /* Set `addend'. */
411e1bfb 10694 tls_type = 0;
65f38f15
AM		 10695 switch (r_type)
10696 {
10697 default:
10698 (*_bfd_error_handler)
d003868e
AM		 10699 (_("%B: unknown relocation type %d for symbol %s"),
10700 input_bfd, (int) r_type, sym_name);
5bd4f169 10701
65f38f15 10702 bfd_set_error (bfd_error_bad_value);
b34976b6 10703 ret = FALSE;
65f38f15 10704 continue;
5bd4f169 10705
65f38f15 10706 case R_PPC64_NONE:
411e1bfb 10707 case R_PPC64_TLS:
04c9666a
AM		 10708 case R_PPC64_GNU_VTINHERIT:
10709 case R_PPC64_GNU_VTENTRY:
65f38f15 10710 continue;
5bd4f169
AM		 10711
10712 /* GOT16 relocations. Like an ADDR16 using the symbol's
10713 address in the GOT as relocation value instead of the
411e1bfb 10714 symbol's value itself. Also, create a GOT entry for the
5bd4f169 10715 symbol and put the symbol value there. */
411e1bfb
AM		 10716 case R_PPC64_GOT_TLSGD16:
10717 case R_PPC64_GOT_TLSGD16_LO:
10718 case R_PPC64_GOT_TLSGD16_HI:
10719 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 10720 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 10721 goto dogot;
10722
10723 case R_PPC64_GOT_TLSLD16:
10724 case R_PPC64_GOT_TLSLD16_LO:
10725 case R_PPC64_GOT_TLSLD16_HI:
10726 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 10727 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 10728 goto dogot;
10729
10730 case R_PPC64_GOT_TPREL16_DS:
10731 case R_PPC64_GOT_TPREL16_LO_DS:
10732 case R_PPC64_GOT_TPREL16_HI:
10733 case R_PPC64_GOT_TPREL16_HA:
10734 tls_type = TLS_TLS | TLS_TPREL;
10735 goto dogot;
10736
10737 case R_PPC64_GOT_DTPREL16_DS:
10738 case R_PPC64_GOT_DTPREL16_LO_DS:
10739 case R_PPC64_GOT_DTPREL16_HI:
10740 case R_PPC64_GOT_DTPREL16_HA:
10741 tls_type = TLS_TLS | TLS_DTPREL;
10742 goto dogot;
10743
65f38f15
AM		 10744 case R_PPC64_GOT16:
10745 case R_PPC64_GOT16_LO:
10746 case R_PPC64_GOT16_HI:
10747 case R_PPC64_GOT16_HA:
10748 case R_PPC64_GOT16_DS:
10749 case R_PPC64_GOT16_LO_DS:
411e1bfb 10750 dogot:
5bd4f169
AM		 10751 {
10752 /* Relocation is to the entry for this symbol in the global
10753 offset table. */
e717da7e 10754 asection *got;
d881513a 10755 bfd_vma *offp;
5bd4f169 10756 bfd_vma off;
d881513a 10757 unsigned long indx = 0;
65f38f15 10758
d881513a
AM		 10759 if (tls_type == (TLS_TLS | TLS_LD)
10760 && (h == NULL
f5385ebf 10761 || !h->elf.def_dynamic))
e717da7e 10762 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 10763 else
5bd4f169 10764 {
d881513a 10765 struct got_entry *ent;
5bd4f169 10766
d881513a
AM		 10767 if (h != NULL)
10768 {
10769 bfd_boolean dyn = htab->elf.dynamic_sections_created;
039b3fef
AM		 10770 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
10771 &h->elf)
d881513a 10772 || (info->shared
039b3fef 10773 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
d881513a
AM		 10774 /* This is actually a static link, or it is a
10775 -Bsymbolic link and the symbol is defined
10776 locally, or the symbol was forced to be local
10777 because of a version file. */
10778 ;
10779 else
10780 {
039b3fef 10781 indx = h->elf.dynindx;
d881513a
AM		 10782 unresolved_reloc = FALSE;
10783 }
039b3fef 10784 ent = h->elf.got.glist;
d881513a 10785 }
411e1bfb 10786 else
5bd4f169 10787 {
d881513a
AM		 10788 if (local_got_ents == NULL)
10789 abort ();
10790 ent = local_got_ents[r_symndx];
5bd4f169 10791 }
d881513a
AM		 10792
10793 for (; ent != NULL; ent = ent->next)
4cc603a5 10794 if (ent->addend == orig_addend
e717da7e 10795 && ent->owner == input_bfd
d881513a
AM		 10796 && ent->tls_type == tls_type)
10797 break;
10798 if (ent == NULL)
10799 abort ();
10800 offp = &ent->got.offset;
5bd4f169 10801 }
411e1bfb 10802
e717da7e
AM		 10803 got = ppc64_elf_tdata (input_bfd)->got;
10804 if (got == NULL)
10805 abort ();
10806
411e1bfb
AM		 10807 /* The offset must always be a multiple of 8. We use the
10808 least significant bit to record whether we have already
10809 processed this entry. */
d881513a 10810 off = *offp;
411e1bfb
AM		 10811 if ((off & 1) != 0)
10812 off &= ~1;
5bd4f169
AM		 10813 else
10814 {
411e1bfb
AM		 10815 /* Generate relocs for the dynamic linker, except in
10816 the case of TLSLD where we'll use one entry per
10817 module. */
e717da7e
AM		 10818 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
10819
d881513a 10820 *offp = off | 1;
4e795f50
AM		 10821 if ((info->shared || indx != 0)
10822 && (h == NULL
039b3fef
AM		 10823 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10824 || h->elf.root.type != bfd_link_hash_undefweak))
5bd4f169 10825 {
e717da7e
AM		 10826 outrel.r_offset = (got->output_section->vma
10827 + got->output_offset
411e1bfb 10828 + off);
4cc603a5 10829 outrel.r_addend = addend;
d881513a 10830 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 10831 {
411e1bfb 10832 outrel.r_addend = 0;
e515b051 10833 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 10834 if (tls_type == (TLS_TLS | TLS_GD))
10835 {
e717da7e
AM		 10836 loc = relgot->contents;
10837 loc += (relgot->reloc_count++
d881513a
AM		 10838 * sizeof (Elf64_External_Rela));
10839 bfd_elf64_swap_reloca_out (output_bfd,
10840 &outrel, loc);
e515b051 10841 outrel.r_offset += 8;
4cc603a5 10842 outrel.r_addend = addend;
d881513a
AM		 10843 outrel.r_info
10844 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 10845 }
411e1bfb 10846 }
951fd09b 10847 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 10848 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 10849 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 10850 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
10851 else if (indx == 0)
81407a69
AM		 10852 {
10853 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
10854
10855 /* Write the .got section contents for the sake
10856 of prelink. */
e717da7e 10857 loc = got->contents + off;
23fbd6fa
JJ		 10858 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
10859 loc);
81407a69 10860 }
411e1bfb
AM		 10861 else
10862 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 10863
10864 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 10865 {
10866 outrel.r_addend += relocation;
10867 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 10868 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 10869 }
e717da7e
AM		 10870 loc = relgot->contents;
10871 loc += (relgot->reloc_count++
411e1bfb
AM		 10872 * sizeof (Elf64_External_Rela));
10873 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10874 }
10875
ad8e1ba5 10876 /* Init the .got section contents here if we're not
81407a69 10877 emitting a reloc. */
d881513a 10878 else
411e1bfb 10879 {
4cc603a5 10880 relocation += addend;
7b609f53
AM		 10881 if (tls_type == (TLS_TLS | TLS_LD))
10882 relocation = 1;
10883 else if (tls_type != 0)
411e1bfb 10884 {
e1918d23 10885 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 10886 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 10887 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 10888
7b609f53
AM		 10889 if (tls_type == (TLS_TLS | TLS_GD))
10890 {
10891 bfd_put_64 (output_bfd, relocation,
e717da7e 10892 got->contents + off + 8);
7b609f53
AM		 10893 relocation = 1;
10894 }
411e1bfb 10895 }
7b609f53 10896
411e1bfb 10897 bfd_put_64 (output_bfd, relocation,
e717da7e 10898 got->contents + off);
5bd4f169
AM		 10899 }
10900 }
10901
65f38f15
AM		 10902 if (off >= (bfd_vma) -2)
10903 abort ();
10904
e717da7e 10905 relocation = got->output_offset + off;
65f38f15 10906
5bd4f169 10907 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 10908 addend = -TOC_BASE_OFF;
5bd4f169 10909 }
65f38f15
AM		 10910 break;
10911
10912 case R_PPC64_PLT16_HA:
10913 case R_PPC64_PLT16_HI:
10914 case R_PPC64_PLT16_LO:
10915 case R_PPC64_PLT32:
10916 case R_PPC64_PLT64:
10917 /* Relocation is to the entry for this symbol in the
10918 procedure linkage table. */
10919
10920 /* Resolve a PLT reloc against a local symbol directly,
10921 without using the procedure linkage table. */
10922 if (h == NULL)
10923 break;
10924
411e1bfb
AM		 10925 /* It's possible that we didn't make a PLT entry for this
10926 symbol. This happens when statically linking PIC code,
10927 or when using -Bsymbolic. Go find a match if there is a
10928 PLT entry. */
4ce794b7 10929 if (htab->plt != NULL)
65f38f15 10930 {
411e1bfb 10931 struct plt_entry *ent;
039b3fef 10932 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
4cc603a5 10933 if (ent->addend == orig_addend
411e1bfb
AM		 10934 && ent->plt.offset != (bfd_vma) -1)
10935 {
4ce794b7
AM		 10936 relocation = (htab->plt->output_section->vma
10937 + htab->plt->output_offset
411e1bfb
AM		 10938 + ent->plt.offset);
10939 unresolved_reloc = FALSE;
10940 }
65f38f15 10941 }
65f38f15 10942 break;
5bd4f169 10943
0b13192e
AM		 10944 case R_PPC64_TOC:
10945 /* Relocation value is TOC base. */
10946 relocation = TOCstart;
10947 if (r_symndx == 0)
10948 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM		 10949 else if (unresolved_reloc)
10950 ;
10951 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM		 10952 relocation += htab->stub_group[sec->id].toc_off;
10953 else
10954 unresolved_reloc = TRUE;
ab96bf03 10955 goto dodyn;
0b13192e 10956
5bd4f169
AM		 10957 /* TOC16 relocs. We want the offset relative to the TOC base,
10958 which is the address of the start of the TOC plus 0x8000.
10959 The TOC consists of sections .got, .toc, .tocbss, and .plt,
10960 in this order. */
65f38f15
AM		 10961 case R_PPC64_TOC16:
10962 case R_PPC64_TOC16_LO:
10963 case R_PPC64_TOC16_HI:
10964 case R_PPC64_TOC16_DS:
10965 case R_PPC64_TOC16_LO_DS:
10966 case R_PPC64_TOC16_HA:
ad8e1ba5 10967 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 10968 break;
10969
10970 /* Relocate against the beginning of the section. */
65f38f15
AM		 10971 case R_PPC64_SECTOFF:
10972 case R_PPC64_SECTOFF_LO:
10973 case R_PPC64_SECTOFF_HI:
10974 case R_PPC64_SECTOFF_DS:
10975 case R_PPC64_SECTOFF_LO_DS:
10976 case R_PPC64_SECTOFF_HA:
4ce794b7 10977 if (sec != NULL)
65f38f15 10978 addend -= sec->output_section->vma;
5bd4f169
AM		 10979 break;
10980
721956f4
AM		 10981 case R_PPC64_REL14:
10982 case R_PPC64_REL14_BRNTAKEN:
10983 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 10984 case R_PPC64_REL24:
10985 break;
10986
411e1bfb
AM		 10987 case R_PPC64_TPREL16:
10988 case R_PPC64_TPREL16_LO:
10989 case R_PPC64_TPREL16_HI:
10990 case R_PPC64_TPREL16_HA:
10991 case R_PPC64_TPREL16_DS:
10992 case R_PPC64_TPREL16_LO_DS:
10993 case R_PPC64_TPREL16_HIGHER:
10994 case R_PPC64_TPREL16_HIGHERA:
10995 case R_PPC64_TPREL16_HIGHEST:
10996 case R_PPC64_TPREL16_HIGHESTA:
e1918d23 10997 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 10998 if (info->shared)
10999 /* The TPREL16 relocs shouldn't really be used in shared
11000 libs as they will result in DT_TEXTREL being set, but
11001 support them anyway. */
11002 goto dodyn;
11003 break;
11004
11005 case R_PPC64_DTPREL16:
11006 case R_PPC64_DTPREL16_LO:
11007 case R_PPC64_DTPREL16_HI:
11008 case R_PPC64_DTPREL16_HA:
11009 case R_PPC64_DTPREL16_DS:
11010 case R_PPC64_DTPREL16_LO_DS:
11011 case R_PPC64_DTPREL16_HIGHER:
11012 case R_PPC64_DTPREL16_HIGHERA:
11013 case R_PPC64_DTPREL16_HIGHEST:
11014 case R_PPC64_DTPREL16_HIGHESTA:
e1918d23 11015 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 11016 break;
11017
e515b051
AM		 11018 case R_PPC64_DTPMOD64:
11019 relocation = 1;
11020 addend = 0;
11021 goto dodyn;
11022
411e1bfb 11023 case R_PPC64_TPREL64:
e1918d23 11024 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 11025 goto dodyn;
11026
11027 case R_PPC64_DTPREL64:
e1918d23 11028 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 11029 /* Fall thru */
11030
65f38f15
AM		 11031 /* Relocations that may need to be propagated if this is a
11032 dynamic object. */
04c9666a 11033 case R_PPC64_REL30:
65f38f15
AM		 11034 case R_PPC64_REL32:
11035 case R_PPC64_REL64:
11036 case R_PPC64_ADDR14:
11037 case R_PPC64_ADDR14_BRNTAKEN:
11038 case R_PPC64_ADDR14_BRTAKEN:
11039 case R_PPC64_ADDR16:
11040 case R_PPC64_ADDR16_DS:
11041 case R_PPC64_ADDR16_HA:
11042 case R_PPC64_ADDR16_HI:
11043 case R_PPC64_ADDR16_HIGHER:
11044 case R_PPC64_ADDR16_HIGHERA:
11045 case R_PPC64_ADDR16_HIGHEST:
11046 case R_PPC64_ADDR16_HIGHESTA:
11047 case R_PPC64_ADDR16_LO:
11048 case R_PPC64_ADDR16_LO_DS:
11049 case R_PPC64_ADDR24:
65f38f15
AM		 11050 case R_PPC64_ADDR32:
11051 case R_PPC64_ADDR64:
11052 case R_PPC64_UADDR16:
11053 case R_PPC64_UADDR32:
11054 case R_PPC64_UADDR64:
411e1bfb 11055 dodyn:
5d1634d7 11056 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 11057 break;
11058
41bd81ab
AM		 11059 if (NO_OPD_RELOCS && is_opd)
11060 break;
11061
65f38f15 11062 if ((info->shared
4e795f50 11063 && (h == NULL
039b3fef
AM		 11064 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
11065 || h->elf.root.type != bfd_link_hash_undefweak)
411e1bfb 11066 && (MUST_BE_DYN_RELOC (r_type)
039b3fef 11067 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
f4656909
AM		 11068 || (ELIMINATE_COPY_RELOCS
11069 && !info->shared
65f38f15 11070 && h != NULL
039b3fef 11071 && h->elf.dynindx != -1
f5385ebf
AM		 11072 && !h->elf.non_got_ref
11073 && h->elf.def_dynamic
11074 && !h->elf.def_regular))
65f38f15
AM		 11075 {
11076 Elf_Internal_Rela outrel;
b34976b6 11077 bfd_boolean skip, relocate;
65f38f15 11078 asection *sreloc;
947216bf 11079 bfd_byte *loc;
1cf1f670 11080 bfd_vma out_off;
65f38f15
AM		 11081
11082 /* When generating a dynamic object, these relocations
11083 are copied into the output file to be resolved at run
11084 time. */
11085
b34976b6
AM		 11086 skip = FALSE;
11087 relocate = FALSE;
65f38f15 11088
1cf1f670
AM		 11089 out_off = _bfd_elf_section_offset (output_bfd, info,
11090 input_section, rel->r_offset);
11091 if (out_off == (bfd_vma) -1)
b34976b6 11092 skip = TRUE;
1cf1f670 11093 else if (out_off == (bfd_vma) -2)
b34976b6 11094 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 11095 out_off += (input_section->output_section->vma
11096 + input_section->output_offset);
11097 outrel.r_offset = out_off;
411e1bfb 11098 outrel.r_addend = rel->r_addend;
65f38f15 11099
1cf1f670
AM		 11100 /* Optimize unaligned reloc use. */
11101 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
11102 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
11103 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
11104 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
11105 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
11106 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
11107 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
11108 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
11109 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
11110
65f38f15 11111 if (skip)
0bb2d96a 11112 memset (&outrel, 0, sizeof outrel);
039b3fef 11113 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
0b13192e
AM		 11114 && !is_opd
11115 && r_type != R_PPC64_TOC)
039b3fef 11116 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
65f38f15
AM		 11117 else
11118 {
41bd81ab
AM		 11119 /* This symbol is local, or marked to become local,
11120 or this is an opd section reloc which must point
11121 at a local function. */
65f38f15 11122 outrel.r_addend += relocation;
e86ce104 11123 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 11124 {
3fad3c7c 11125 if (is_opd && h != NULL)
afbe61cf
AM		 11126 {
11127 /* Lie about opd entries. This case occurs
11128 when building shared libraries and we
11129 reference a function in another shared
3fad3c7c
AM		 11130 lib. The same thing happens for a weak
11131 definition in an application that's
11132 overridden by a strong definition in a
11133 shared lib. (I believe this is a generic
11134 bug in binutils handling of weak syms.)
11135 In these cases we won't use the opd
1e2f5b6e 11136 entry in this lib. */
b34976b6 11137 unresolved_reloc = FALSE;
afbe61cf 11138 }
65f38f15 11139 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 11140
11141 /* We need to relocate .opd contents for ld.so.
11142 Prelink also wants simple and consistent rules
11143 for relocs. This make all RELATIVE relocs have
11144 *r_offset equal to r_addend. */
11145 relocate = TRUE;
65f38f15
AM		 11146 }
11147 else
11148 {
11149 long indx = 0;
11150
41bd81ab 11151 if (bfd_is_abs_section (sec))
65f38f15
AM		 11152 ;
11153 else if (sec == NULL || sec->owner == NULL)
11154 {
11155 bfd_set_error (bfd_error_bad_value);
b34976b6 11156 return FALSE;
65f38f15
AM		 11157 }
11158 else
11159 {
11160 asection *osec;
11161
11162 osec = sec->output_section;
11163 indx = elf_section_data (osec)->dynindx;
11164
74541ad4
AM		 11165 if (indx == 0)
11166 {
11167 if ((osec->flags & SEC_READONLY) == 0
11168 && htab->elf.data_index_section != NULL)
11169 osec = htab->elf.data_index_section;
11170 else
11171 osec = htab->elf.text_index_section;
11172 indx = elf_section_data (osec)->dynindx;
11173 }
11174 BFD_ASSERT (indx != 0);
11175
65f38f15
AM		 11176 /* We are turning this relocation into one
11177 against a section symbol, so subtract out
11178 the output section's address but not the
11179 offset of the input section in the output
11180 section. */
11181 outrel.r_addend -= osec->vma;
11182 }
11183
11184 outrel.r_info = ELF64_R_INFO (indx, r_type);
11185 }
11186 }
11187
11188 sreloc = elf_section_data (input_section)->sreloc;
11189 if (sreloc == NULL)
11190 abort ();
11191
dfbb6ac9
AM		 11192 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
11193 >= sreloc->size)
11194 abort ();
947216bf
AM		 11195 loc = sreloc->contents;
11196 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 11197 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
11198
11199 /* If this reloc is against an external symbol, it will
11200 be computed at runtime, so there's no need to do
81407a69
AM		 11201 anything now. However, for the sake of prelink ensure
11202 that the section contents are a known value. */
65f38f15 11203 if (! relocate)
81407a69
AM		 11204 {
11205 unresolved_reloc = FALSE;
11206 /* The value chosen here is quite arbitrary as ld.so
11207 ignores section contents except for the special
11208 case of .opd where the contents might be accessed
11209 before relocation. Choose zero, as that won't
11210 cause reloc overflow. */
11211 relocation = 0;
11212 addend = 0;
11213 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
11214 to improve backward compatibility with older
11215 versions of ld. */
11216 if (r_type == R_PPC64_ADDR64)
11217 addend = outrel.r_addend;
11218 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 11219 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 11220 addend = (input_section->output_section->vma
11221 + input_section->output_offset
11222 + rel->r_offset);
81407a69 11223 }
65f38f15 11224 }
5bd4f169
AM		 11225 break;
11226
65f38f15
AM		 11227 case R_PPC64_COPY:
11228 case R_PPC64_GLOB_DAT:
11229 case R_PPC64_JMP_SLOT:
11230 case R_PPC64_RELATIVE:
11231 /* We shouldn't ever see these dynamic relocs in relocatable
11232 files. */
ae9a127f 11233 /* Fall through. */
65f38f15
AM		 11234
11235 case R_PPC64_PLTGOT16:
11236 case R_PPC64_PLTGOT16_DS:
11237 case R_PPC64_PLTGOT16_HA:
11238 case R_PPC64_PLTGOT16_HI:
11239 case R_PPC64_PLTGOT16_LO:
11240 case R_PPC64_PLTGOT16_LO_DS:
11241 case R_PPC64_PLTREL32:
11242 case R_PPC64_PLTREL64:
11243 /* These ones haven't been implemented yet. */
11244
11245 (*_bfd_error_handler)
d003868e
AM		 11246 (_("%B: relocation %s is not supported for symbol %s."),
11247 input_bfd,
4ce794b7 11248 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 11249
11250 bfd_set_error (bfd_error_invalid_operation);
b34976b6 11251 ret = FALSE;
5bd4f169 11252 continue;
65f38f15 11253 }
5bd4f169 11254
65f38f15
AM		 11255 /* Do any further special processing. */
11256 switch (r_type)
11257 {
11258 default:
11259 break;
11260
11261 case R_PPC64_ADDR16_HA:
11262 case R_PPC64_ADDR16_HIGHERA:
11263 case R_PPC64_ADDR16_HIGHESTA:
65f38f15
AM		 11264 case R_PPC64_TOC16_HA:
11265 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 11266 case R_PPC64_TPREL16_HA:
11267 case R_PPC64_DTPREL16_HA:
411e1bfb
AM		 11268 case R_PPC64_TPREL16_HIGHER:
11269 case R_PPC64_TPREL16_HIGHERA:
11270 case R_PPC64_TPREL16_HIGHEST:
11271 case R_PPC64_TPREL16_HIGHESTA:
11272 case R_PPC64_DTPREL16_HIGHER:
11273 case R_PPC64_DTPREL16_HIGHERA:
11274 case R_PPC64_DTPREL16_HIGHEST:
11275 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 11276 /* It's just possible that this symbol is a weak symbol
11277 that's not actually defined anywhere. In that case,
11278 'sec' would be NULL, and we should leave the symbol
11279 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM		 11280 if (sec == NULL)
11281 break;
11282 /* Fall thru */
11283
11284 case R_PPC64_GOT16_HA:
11285 case R_PPC64_PLTGOT16_HA:
11286 case R_PPC64_PLT16_HA:
11287 case R_PPC64_GOT_TLSGD16_HA:
11288 case R_PPC64_GOT_TLSLD16_HA:
11289 case R_PPC64_GOT_TPREL16_HA:
11290 case R_PPC64_GOT_DTPREL16_HA:
11291 /* Add 0x10000 if sign bit in 0:15 is set.
11292 Bits 0:15 are not used. */
11293 addend += 0x8000;
65f38f15
AM		 11294 break;
11295
11296 case R_PPC64_ADDR16_DS:
11297 case R_PPC64_ADDR16_LO_DS:
11298 case R_PPC64_GOT16_DS:
11299 case R_PPC64_GOT16_LO_DS:
11300 case R_PPC64_PLT16_LO_DS:
11301 case R_PPC64_SECTOFF_DS:
11302 case R_PPC64_SECTOFF_LO_DS:
11303 case R_PPC64_TOC16_DS:
11304 case R_PPC64_TOC16_LO_DS:
11305 case R_PPC64_PLTGOT16_DS:
11306 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 11307 case R_PPC64_GOT_TPREL16_DS:
11308 case R_PPC64_GOT_TPREL16_LO_DS:
11309 case R_PPC64_GOT_DTPREL16_DS:
11310 case R_PPC64_GOT_DTPREL16_LO_DS:
11311 case R_PPC64_TPREL16_DS:
11312 case R_PPC64_TPREL16_LO_DS:
11313 case R_PPC64_DTPREL16_DS:
11314 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 11315 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
11316 mask = 3;
11317 /* If this reloc is against an lq insn, then the value must be
11318 a multiple of 16. This is somewhat of a hack, but the
11319 "correct" way to do this by defining _DQ forms of all the
11320 _DS relocs bloats all reloc switches in this file. It
11321 doesn't seem to make much sense to use any of these relocs
11322 in data, so testing the insn should be safe. */
494dac0c 11323 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 11324 mask = 15;
11325 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 11326 {
11327 (*_bfd_error_handler)
d003868e
AM		 11328 (_("%B: error: relocation %s not a multiple of %d"),
11329 input_bfd,
4ce794b7 11330 ppc64_elf_howto_table[r_type]->name,
adadcc0c 11331 mask + 1);
65f38f15 11332 bfd_set_error (bfd_error_bad_value);
b34976b6 11333 ret = FALSE;
65f38f15
AM		 11334 continue;
11335 }
11336 break;
5bd4f169
AM		 11337 }
11338
239e1f3a
AM		 11339 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
11340 because such sections are not SEC_ALLOC and thus ld.so will
11341 not process them. */
65f38f15 11342 if (unresolved_reloc
239e1f3a 11343 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 11344 && h->elf.def_dynamic))
9c07fe7c
AM		 11345 {
11346 (*_bfd_error_handler)
d003868e
AM		 11347 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
11348 input_bfd,
11349 input_section,
9c07fe7c 11350 (long) rel->r_offset,
7b609f53 11351 ppc64_elf_howto_table[(int) r_type]->name,
039b3fef 11352 h->elf.root.root.string);
b34976b6 11353 ret = FALSE;
9c07fe7c 11354 }
5bd4f169 11355
65f38f15 11356 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 11357 input_bfd,
11358 input_section,
11359 contents,
411e1bfb 11360 rel->r_offset,
5bd4f169
AM		 11361 relocation,
11362 addend);
11363
ef60b7ff 11364 if (r != bfd_reloc_ok)
5bd4f169 11365 {
cd27b276
AM		 11366 if (sym_name == NULL)
11367 sym_name = "(null)";
11368 if (r == bfd_reloc_overflow)
5bd4f169 11369 {
cd27b276
AM		 11370 if (warned)
11371 continue;
11372 if (h != NULL
039b3fef 11373 && h->elf.root.type == bfd_link_hash_undefweak
4ce794b7 11374 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 11375 {
11376 /* Assume this is a call protected by other code that
11377 detects the symbol is undefined. If this is the case,
11378 we can safely ignore the overflow. If not, the
11379 program is hosed anyway, and a little warning isn't
11380 going to help. */
11381
11382 continue;
11383 }
11384
ef60b7ff 11385 if (!((*info->callbacks->reloc_overflow)
dfeffb9f
L		 11386 (info, (h ? &h->elf.root : NULL), sym_name,
11387 ppc64_elf_howto_table[r_type]->name,
4cc603a5 11388 orig_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 11389 return FALSE;
ef60b7ff
AM		 11390 }
11391 else
11392 {
11393 (*_bfd_error_handler)
d003868e
AM		 11394 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
11395 input_bfd,
11396 input_section,
7b609f53 11397 (long) rel->r_offset,
4ce794b7 11398 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 11399 sym_name,
11400 (int) r);
b34976b6 11401 ret = FALSE;
ef60b7ff 11402 }
5bd4f169 11403 }
5bd4f169
AM		 11404 }
11405
645ea6a9
AM		 11406 /* If we're emitting relocations, then shortly after this function
11407 returns, reloc offsets and addends for this section will be
11408 adjusted. Worse, reloc symbol indices will be for the output
8860955f
AM		 11409 file rather than the input. Save a copy of the relocs for
11410 opd_entry_value. */
4cc603a5 11411 if (is_opd && (info->emitrelocations || info->relocatable))
8860955f
AM		 11412 {
11413 bfd_size_type amt;
11414 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
11415 rel = bfd_alloc (input_bfd, amt);
11416 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
11417 ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
11418 if (rel == NULL)
11419 return FALSE;
11420 memcpy (rel, relocs, amt);
11421 }
5bd4f169
AM		 11422 return ret;
11423}
11424
754021d0
AM		 11425/* Adjust the value of any local symbols in opd sections. */
11426
11427static bfd_boolean
11428ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
11429 const char *name ATTRIBUTE_UNUSED,
11430 Elf_Internal_Sym *elfsym,
11431 asection *input_sec,
11432 struct elf_link_hash_entry *h)
11433{
74f0fb50
AM		 11434 struct _opd_sec_data *opd;
11435 long adjust;
754021d0
AM		 11436 bfd_vma value;
11437
4025353c
AM		 11438 if (h != NULL)
11439 return TRUE;
11440
74f0fb50
AM		 11441 opd = get_opd_info (input_sec);
11442 if (opd == NULL || opd->adjust == NULL)
754021d0
AM		 11443 return TRUE;
11444
11445 value = elfsym->st_value - input_sec->output_offset;
11446 if (!info->relocatable)
11447 value -= input_sec->output_section->vma;
11448
74f0fb50 11449 adjust = opd->adjust[value / 8];
4025353c
AM		 11450 if (adjust == -1)
11451 elfsym->st_value = 0;
11452 else
11453 elfsym->st_value += adjust;
754021d0
AM		 11454 return TRUE;
11455}
11456
5bd4f169
AM		 11457/* Finish up dynamic symbol handling. We set the contents of various
11458 dynamic sections here. */
11459
b34976b6 11460static bfd_boolean
4ce794b7
AM		 11461ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
11462 struct bfd_link_info *info,
11463 struct elf_link_hash_entry *h,
11464 Elf_Internal_Sym *sym)
5bd4f169 11465{
65f38f15 11466 struct ppc_link_hash_table *htab;
8387904d
AM		 11467 struct plt_entry *ent;
11468 Elf_Internal_Rela rela;
11469 bfd_byte *loc;
5bd4f169 11470
65f38f15 11471 htab = ppc_hash_table (info);
5bd4f169 11472
8387904d
AM		 11473 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
11474 if (ent->plt.offset != (bfd_vma) -1)
11475 {
11476 /* This symbol has an entry in the procedure linkage
11477 table. Set it up. */
11478
11479 if (htab->plt == NULL
11480 || htab->relplt == NULL
11481 || htab->glink == NULL)
11482 abort ();
11483
11484 /* Create a JMP_SLOT reloc to inform the dynamic linker to
11485 fill in the PLT entry. */
11486 rela.r_offset = (htab->plt->output_section->vma
11487 + htab->plt->output_offset
11488 + ent->plt.offset);
11489 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
11490 rela.r_addend = ent->addend;
11491
11492 loc = htab->relplt->contents;
11493 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
11494 * sizeof (Elf64_External_Rela));
11495 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
11496 }
5bd4f169 11497
f5385ebf 11498 if (h->needs_copy)
5bd4f169 11499 {
5bd4f169 11500 Elf_Internal_Rela rela;
947216bf 11501 bfd_byte *loc;
5bd4f169 11502
65f38f15 11503 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 11504
65f38f15
AM		 11505 if (h->dynindx == -1
11506 || (h->root.type != bfd_link_hash_defined
11507 && h->root.type != bfd_link_hash_defweak)
4ce794b7 11508 || htab->relbss == NULL)
65f38f15 11509 abort ();
5bd4f169
AM		 11510
11511 rela.r_offset = (h->root.u.def.value
11512 + h->root.u.def.section->output_section->vma
11513 + h->root.u.def.section->output_offset);
11514 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
11515 rela.r_addend = 0;
4ce794b7
AM		 11516 loc = htab->relbss->contents;
11517 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 11518 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 11519 }
11520
5bd4f169
AM		 11521 /* Mark some specially defined symbols as absolute. */
11522 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
11523 sym->st_shndx = SHN_ABS;
11524
b34976b6 11525 return TRUE;
5bd4f169
AM		 11526}
11527
65f38f15
AM		 11528/* Used to decide how to sort relocs in an optimal manner for the
11529 dynamic linker, before writing them out. */
11530
11531static enum elf_reloc_type_class
4ce794b7 11532ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 11533{
04c9666a 11534 enum elf_ppc64_reloc_type r_type;
a33d1f77 11535
4ce794b7 11536 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 11537 switch (r_type)
65f38f15
AM		 11538 {
11539 case R_PPC64_RELATIVE:
11540 return reloc_class_relative;
11541 case R_PPC64_JMP_SLOT:
11542 return reloc_class_plt;
11543 case R_PPC64_COPY:
11544 return reloc_class_copy;
11545 default:
11546 return reloc_class_normal;
11547 }
11548}
11549
5bd4f169
AM		 11550/* Finish up the dynamic sections. */
11551
b34976b6 11552static bfd_boolean
4ce794b7
AM		 11553ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
11554 struct bfd_link_info *info)
5bd4f169 11555{
65f38f15
AM		 11556 struct ppc_link_hash_table *htab;
11557 bfd *dynobj;
5bd4f169 11558 asection *sdyn;
5bd4f169 11559
65f38f15
AM		 11560 htab = ppc_hash_table (info);
11561 dynobj = htab->elf.dynobj;
5bd4f169
AM		 11562 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
11563
65f38f15 11564 if (htab->elf.dynamic_sections_created)
5bd4f169 11565 {
5bd4f169
AM		 11566 Elf64_External_Dyn *dyncon, *dynconend;
11567
4ce794b7 11568 if (sdyn == NULL || htab->got == NULL)
65f38f15 11569 abort ();
5bd4f169
AM		 11570
11571 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 11572 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM		 11573 for (; dyncon < dynconend; dyncon++)
11574 {
11575 Elf_Internal_Dyn dyn;
19397422 11576 asection *s;
5bd4f169
AM		 11577
11578 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
11579
11580 switch (dyn.d_tag)
11581 {
65f38f15
AM		 11582 default:
11583 continue;
5bd4f169 11584
5d1634d7 11585 case DT_PPC64_GLINK:
4ce794b7 11586 s = htab->glink;
6348e046 11587 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 11588 /* We stupidly defined DT_PPC64_GLINK to be the start
11589 of glink rather than the first entry point, which is
11590 what ld.so needs, and now have a bigger stub to
11591 support automatic multiple TOCs. */
11592 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 11593 break;
11594
19397422
AM		 11595 case DT_PPC64_OPD:
11596 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 11597 if (s == NULL)
11598 continue;
11599 dyn.d_un.d_ptr = s->vma;
19397422
AM		 11600 break;
11601
11602 case DT_PPC64_OPDSZ:
11603 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 11604 if (s == NULL)
11605 continue;
eea6121a 11606 dyn.d_un.d_val = s->size;
19397422
AM		 11607 break;
11608
65f38f15 11609 case DT_PLTGOT:
4ce794b7 11610 s = htab->plt;
6348e046 11611 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 11612 break;
11613
11614 case DT_JMPREL:
4ce794b7 11615 s = htab->relplt;
6348e046 11616 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 11617 break;
5bd4f169 11618
65f38f15 11619 case DT_PLTRELSZ:
eea6121a 11620 dyn.d_un.d_val = htab->relplt->size;
5d1634d7
AM		 11621 break;
11622
11623 case DT_RELASZ:
11624 /* Don't count procedure linkage table relocs in the
11625 overall reloc count. */
4ce794b7 11626 s = htab->relplt;
6348e046
AM		 11627 if (s == NULL)
11628 continue;
eea6121a 11629 dyn.d_un.d_val -= s->size;
6348e046
AM		 11630 break;
11631
11632 case DT_RELA:
11633 /* We may not be using the standard ELF linker script.
11634 If .rela.plt is the first .rela section, we adjust
11635 DT_RELA to not include it. */
4ce794b7 11636 s = htab->relplt;
6348e046
AM		 11637 if (s == NULL)
11638 continue;
11639 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
11640 continue;
eea6121a 11641 dyn.d_un.d_ptr += s->size;
65f38f15 11642 break;
5bd4f169 11643 }
5bd4f169 11644
65f38f15 11645 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 11646 }
5bd4f169
AM		 11647 }
11648
eea6121a 11649 if (htab->got != NULL && htab->got->size != 0)
5d1634d7
AM		 11650 {
11651 /* Fill in the first entry in the global offset table.
11652 We use it to hold the link-time TOCbase. */
11653 bfd_put_64 (output_bfd,
60ee0d4a 11654 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 11655 htab->got->contents);
5d1634d7
AM		 11656
11657 /* Set .got entry size. */
4ce794b7 11658 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 11659 }
11660
eea6121a 11661 if (htab->plt != NULL && htab->plt->size != 0)
5d1634d7
AM		 11662 {
11663 /* Set .plt entry size. */
4ce794b7 11664 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 11665 = PLT_ENTRY_SIZE;
11666 }
11667
84f5d08e
AM		 11668 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
11669 brlt ourselves if emitrelocations. */
11670 if (htab->brlt != NULL
11671 && htab->brlt->reloc_count != 0
11672 && !_bfd_elf_link_output_relocs (output_bfd,
11673 htab->brlt,
11674 &elf_section_data (htab->brlt)->rel_hdr,
11675 elf_section_data (htab->brlt)->relocs,
11676 NULL))
11677 return FALSE;
11678
176a0d42
AM		 11679 if (htab->glink != NULL
11680 && htab->glink->reloc_count != 0
11681 && !_bfd_elf_link_output_relocs (output_bfd,
11682 htab->glink,
11683 &elf_section_data (htab->glink)->rel_hdr,
11684 elf_section_data (htab->glink)->relocs,
11685 NULL))
11686 return FALSE;
11687
e717da7e 11688 /* We need to handle writing out multiple GOT sections ourselves,
7b53ace3
AM		 11689 since we didn't add them to DYNOBJ. We know dynobj is the first
11690 bfd. */
e717da7e
AM		 11691 while ((dynobj = dynobj->link_next) != NULL)
11692 {
11693 asection *s;
7b53ace3 11694
0c8d6e5c 11695 if (!is_ppc64_elf (dynobj))
7b53ace3
AM		 11696 continue;
11697
e717da7e
AM		 11698 s = ppc64_elf_tdata (dynobj)->got;
11699 if (s != NULL
eea6121a 11700 && s->size != 0
e717da7e
AM		 11701 && s->output_section != bfd_abs_section_ptr
11702 && !bfd_set_section_contents (output_bfd, s->output_section,
11703 s->contents, s->output_offset,
eea6121a 11704 s->size))
e717da7e
AM		 11705 return FALSE;
11706 s = ppc64_elf_tdata (dynobj)->relgot;
11707 if (s != NULL
eea6121a 11708 && s->size != 0
e717da7e
AM		 11709 && s->output_section != bfd_abs_section_ptr
11710 && !bfd_set_section_contents (output_bfd, s->output_section,
11711 s->contents, s->output_offset,
eea6121a 11712 s->size))
e717da7e
AM		 11713 return FALSE;
11714 }
f6c52c13 11715
b34976b6 11716 return TRUE;
5bd4f169
AM		 11717}
11718
5bd4f169 11719#include "elf64-target.h"
GDB Binutils - Deliverables
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