* linux-low.c (fetch_register): Avoid passing a non string literal
[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
CommitLineData
5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
3a71aa26 2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
fb34365b 3 2009, 2010 Free Software Foundation, Inc.
5bd4f169
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4 Written by Linus Nordberg, Swox AB <info@swox.com>,
5 based on elf32-ppc.c by Ian Lance Taylor.
32ca9640 6 Largely rewritten by Alan Modra.
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
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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
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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
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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
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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
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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
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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
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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
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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
7d9616d7 95#define elf_backend_check_directives ppc64_elf_process_dot_syms
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
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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
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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
e054468f 115#define elf_backend_post_process_headers _bfd_elf_set_osabi
ad8e1ba5 116
5bd4f169
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117/* The name of the dynamic interpreter. This is put in the .interp
118 section. */
119#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
120
121/* The size in bytes of an entry in the procedure linkage table. */
122#define PLT_ENTRY_SIZE 24
123
124/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 125#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
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126
127/* TOC base pointers offset from start of TOC. */
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128#define TOC_BASE_OFF 0x8000
129
130/* Offset of tp and dtp pointers from start of TLS block. */
131#define TP_OFFSET 0x7000
132#define DTP_OFFSET 0x8000
5bd4f169 133
ad8e1ba5
AM
134/* .plt call stub instructions. The normal stub is like this, but
135 sometimes the .plt entry crosses a 64k boundary and we need to
ac2df442 136 insert an addi to adjust r12. */
ad8e1ba5 137#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM
138#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
139#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
140#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
5d1634d7 141#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
ac2df442 142#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
5d1634d7
AM
143 /* ld %r11,xxx+16@l(%r12) */
144#define BCTR 0x4e800420 /* bctr */
145
5d1634d7 146
ee4bf8d2 147#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,off@ha */
ac2df442 148#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,off@l */
ad8e1ba5
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149#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
150#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
151
ac2df442
AM
152#define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
153#define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
154
ad8e1ba5
AM
155#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
156
ee4bf8d2 157/* glink call stub instructions. We enter with the index in R0. */
ad8e1ba5 158#define GLINK_CALL_STUB_SIZE (16*4)
ee4bf8d2
AM
159 /* 0: */
160 /* .quad plt0-1f */
161 /* __glink: */
162#define MFLR_R12 0x7d8802a6 /* mflr %12 */
163#define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
164 /* 1: */
165#define MFLR_R11 0x7d6802a6 /* mflr %11 */
166#define LD_R2_M16R11 0xe84bfff0 /* ld %2,(0b-1b)(%11) */
167#define MTLR_R12 0x7d8803a6 /* mtlr %12 */
168#define ADD_R12_R2_R11 0x7d825a14 /* add %12,%2,%11 */
169 /* ld %11,0(%12) */
170 /* ld %2,8(%12) */
171 /* mtctr %11 */
172 /* ld %11,16(%12) */
173 /* bctr */
5d1634d7
AM
174
175/* Pad with this. */
176#define NOP 0x60000000
177
721956f4
AM
178/* Some other nops. */
179#define CROR_151515 0x4def7b82
180#define CROR_313131 0x4ffffb82
181
cedb70c5 182/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM
183#define LI_R0_0 0x38000000 /* li %r0,0 */
184#define B_DOT 0x48000000 /* b . */
185
186/* After that, we need two instructions to load the index, followed by
187 a branch. */
188#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 189#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 190
deb0e272
AM
191/* Instructions used by the save and restore reg functions. */
192#define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
193#define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
194#define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
195#define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
82bd7b59
AM
196#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
197#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
deb0e272
AM
198#define LI_R12_0 0x39800000 /* li %r12,0 */
199#define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
200#define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
201#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
82bd7b59
AM
202#define BLR 0x4e800020 /* blr */
203
41bd81ab
AM
204/* Since .opd is an array of descriptors and each entry will end up
205 with identical R_PPC64_RELATIVE relocs, there is really no need to
206 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 207 relocate .opd without reloc entries. */
41bd81ab
AM
208#ifndef NO_OPD_RELOCS
209#define NO_OPD_RELOCS 0
210#endif
5bd4f169 211\f
f5e87a1d 212#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 213
5bd4f169 214/* Relocation HOWTO's. */
04c9666a 215static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM
216
217static reloc_howto_type ppc64_elf_howto_raw[] = {
218 /* This reloc does nothing. */
219 HOWTO (R_PPC64_NONE, /* type */
220 0, /* rightshift */
411e1bfb
AM
221 2, /* size (0 = byte, 1 = short, 2 = long) */
222 32, /* bitsize */
b34976b6 223 FALSE, /* pc_relative */
5bd4f169 224 0, /* bitpos */
f5e87a1d 225 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM
226 bfd_elf_generic_reloc, /* special_function */
227 "R_PPC64_NONE", /* name */
b34976b6 228 FALSE, /* partial_inplace */
d006db6c 229 0, /* src_mask */
5bd4f169 230 0, /* dst_mask */
b34976b6 231 FALSE), /* pcrel_offset */
5bd4f169
AM
232
233 /* A standard 32 bit relocation. */
234 HOWTO (R_PPC64_ADDR32, /* type */
235 0, /* rightshift */
236 2, /* size (0 = byte, 1 = short, 2 = long) */
237 32, /* bitsize */
b34976b6 238 FALSE, /* pc_relative */
5bd4f169
AM
239 0, /* bitpos */
240 complain_overflow_bitfield, /* complain_on_overflow */
241 bfd_elf_generic_reloc, /* special_function */
242 "R_PPC64_ADDR32", /* name */
b34976b6 243 FALSE, /* partial_inplace */
5bd4f169
AM
244 0, /* src_mask */
245 0xffffffff, /* dst_mask */
b34976b6 246 FALSE), /* pcrel_offset */
5bd4f169
AM
247
248 /* An absolute 26 bit branch; the lower two bits must be zero.
249 FIXME: we don't check that, we just clear them. */
250 HOWTO (R_PPC64_ADDR24, /* type */
251 0, /* rightshift */
252 2, /* size (0 = byte, 1 = short, 2 = long) */
253 26, /* bitsize */
b34976b6 254 FALSE, /* pc_relative */
5bd4f169
AM
255 0, /* bitpos */
256 complain_overflow_bitfield, /* complain_on_overflow */
257 bfd_elf_generic_reloc, /* special_function */
258 "R_PPC64_ADDR24", /* name */
b34976b6 259 FALSE, /* partial_inplace */
d006db6c 260 0, /* src_mask */
f5e87a1d 261 0x03fffffc, /* dst_mask */
b34976b6 262 FALSE), /* pcrel_offset */
5bd4f169
AM
263
264 /* A standard 16 bit relocation. */
265 HOWTO (R_PPC64_ADDR16, /* type */
266 0, /* rightshift */
267 1, /* size (0 = byte, 1 = short, 2 = long) */
268 16, /* bitsize */
b34976b6 269 FALSE, /* pc_relative */
5bd4f169
AM
270 0, /* bitpos */
271 complain_overflow_bitfield, /* complain_on_overflow */
272 bfd_elf_generic_reloc, /* special_function */
273 "R_PPC64_ADDR16", /* name */
b34976b6 274 FALSE, /* partial_inplace */
5bd4f169
AM
275 0, /* src_mask */
276 0xffff, /* dst_mask */
b34976b6 277 FALSE), /* pcrel_offset */
5bd4f169
AM
278
279 /* A 16 bit relocation without overflow. */
280 HOWTO (R_PPC64_ADDR16_LO, /* type */
281 0, /* rightshift */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
283 16, /* bitsize */
b34976b6 284 FALSE, /* pc_relative */
5bd4f169
AM
285 0, /* bitpos */
286 complain_overflow_dont,/* complain_on_overflow */
287 bfd_elf_generic_reloc, /* special_function */
288 "R_PPC64_ADDR16_LO", /* name */
b34976b6 289 FALSE, /* partial_inplace */
5bd4f169
AM
290 0, /* src_mask */
291 0xffff, /* dst_mask */
b34976b6 292 FALSE), /* pcrel_offset */
5bd4f169
AM
293
294 /* Bits 16-31 of an address. */
295 HOWTO (R_PPC64_ADDR16_HI, /* type */
296 16, /* rightshift */
297 1, /* size (0 = byte, 1 = short, 2 = long) */
298 16, /* bitsize */
b34976b6 299 FALSE, /* pc_relative */
5bd4f169
AM
300 0, /* bitpos */
301 complain_overflow_dont, /* complain_on_overflow */
302 bfd_elf_generic_reloc, /* special_function */
303 "R_PPC64_ADDR16_HI", /* name */
b34976b6 304 FALSE, /* partial_inplace */
5bd4f169
AM
305 0, /* src_mask */
306 0xffff, /* dst_mask */
b34976b6 307 FALSE), /* pcrel_offset */
5bd4f169
AM
308
309 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
310 bits, treated as a signed number, is negative. */
311 HOWTO (R_PPC64_ADDR16_HA, /* type */
312 16, /* rightshift */
313 1, /* size (0 = byte, 1 = short, 2 = long) */
314 16, /* bitsize */
b34976b6 315 FALSE, /* pc_relative */
5bd4f169
AM
316 0, /* bitpos */
317 complain_overflow_dont, /* complain_on_overflow */
805fc799 318 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 319 "R_PPC64_ADDR16_HA", /* name */
b34976b6 320 FALSE, /* partial_inplace */
5bd4f169
AM
321 0, /* src_mask */
322 0xffff, /* dst_mask */
b34976b6 323 FALSE), /* pcrel_offset */
5bd4f169
AM
324
325 /* An absolute 16 bit branch; the lower two bits must be zero.
326 FIXME: we don't check that, we just clear them. */
327 HOWTO (R_PPC64_ADDR14, /* type */
328 0, /* rightshift */
329 2, /* size (0 = byte, 1 = short, 2 = long) */
330 16, /* bitsize */
b34976b6 331 FALSE, /* pc_relative */
5bd4f169
AM
332 0, /* bitpos */
333 complain_overflow_bitfield, /* complain_on_overflow */
2441e016 334 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 335 "R_PPC64_ADDR14", /* name */
b34976b6 336 FALSE, /* partial_inplace */
d006db6c 337 0, /* src_mask */
f5e87a1d 338 0x0000fffc, /* dst_mask */
b34976b6 339 FALSE), /* pcrel_offset */
5bd4f169
AM
340
341 /* An absolute 16 bit branch, for which bit 10 should be set to
342 indicate that the branch is expected to be taken. The lower two
343 bits must be zero. */
344 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
345 0, /* rightshift */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
347 16, /* bitsize */
b34976b6 348 FALSE, /* pc_relative */
5bd4f169
AM
349 0, /* bitpos */
350 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 351 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 352 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 353 FALSE, /* partial_inplace */
d006db6c 354 0, /* src_mask */
f5e87a1d 355 0x0000fffc, /* dst_mask */
b34976b6 356 FALSE), /* pcrel_offset */
5bd4f169
AM
357
358 /* An absolute 16 bit branch, for which bit 10 should be set to
359 indicate that the branch is not expected to be taken. The lower
360 two bits must be zero. */
361 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
362 0, /* rightshift */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
364 16, /* bitsize */
b34976b6 365 FALSE, /* pc_relative */
5bd4f169
AM
366 0, /* bitpos */
367 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 368 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 369 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 370 FALSE, /* partial_inplace */
d006db6c 371 0, /* src_mask */
f5e87a1d 372 0x0000fffc, /* dst_mask */
b34976b6 373 FALSE), /* pcrel_offset */
5bd4f169
AM
374
375 /* A relative 26 bit branch; the lower two bits must be zero. */
376 HOWTO (R_PPC64_REL24, /* type */
377 0, /* rightshift */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
379 26, /* bitsize */
b34976b6 380 TRUE, /* pc_relative */
5bd4f169
AM
381 0, /* bitpos */
382 complain_overflow_signed, /* complain_on_overflow */
2441e016 383 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 384 "R_PPC64_REL24", /* name */
b34976b6 385 FALSE, /* partial_inplace */
d006db6c 386 0, /* src_mask */
f5e87a1d 387 0x03fffffc, /* dst_mask */
b34976b6 388 TRUE), /* pcrel_offset */
5bd4f169
AM
389
390 /* A relative 16 bit branch; the lower two bits must be zero. */
391 HOWTO (R_PPC64_REL14, /* type */
392 0, /* rightshift */
393 2, /* size (0 = byte, 1 = short, 2 = long) */
394 16, /* bitsize */
b34976b6 395 TRUE, /* pc_relative */
5bd4f169
AM
396 0, /* bitpos */
397 complain_overflow_signed, /* complain_on_overflow */
2441e016 398 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 399 "R_PPC64_REL14", /* name */
b34976b6 400 FALSE, /* partial_inplace */
d006db6c 401 0, /* src_mask */
f5e87a1d 402 0x0000fffc, /* dst_mask */
b34976b6 403 TRUE), /* pcrel_offset */
5bd4f169
AM
404
405 /* A relative 16 bit branch. Bit 10 should be set to indicate that
406 the branch is expected to be taken. The lower two bits must be
407 zero. */
408 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
409 0, /* rightshift */
410 2, /* size (0 = byte, 1 = short, 2 = long) */
411 16, /* bitsize */
b34976b6 412 TRUE, /* pc_relative */
5bd4f169
AM
413 0, /* bitpos */
414 complain_overflow_signed, /* complain_on_overflow */
805fc799 415 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 416 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 417 FALSE, /* partial_inplace */
d006db6c 418 0, /* src_mask */
f5e87a1d 419 0x0000fffc, /* dst_mask */
b34976b6 420 TRUE), /* pcrel_offset */
5bd4f169
AM
421
422 /* A relative 16 bit branch. Bit 10 should be set to indicate that
423 the branch is not expected to be taken. The lower two bits must
424 be zero. */
425 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
426 0, /* rightshift */
427 2, /* size (0 = byte, 1 = short, 2 = long) */
428 16, /* bitsize */
b34976b6 429 TRUE, /* pc_relative */
5bd4f169
AM
430 0, /* bitpos */
431 complain_overflow_signed, /* complain_on_overflow */
805fc799 432 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 433 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 434 FALSE, /* partial_inplace */
d006db6c 435 0, /* src_mask */
f5e87a1d 436 0x0000fffc, /* dst_mask */
b34976b6 437 TRUE), /* pcrel_offset */
5bd4f169
AM
438
439 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
440 symbol. */
441 HOWTO (R_PPC64_GOT16, /* type */
442 0, /* rightshift */
443 1, /* size (0 = byte, 1 = short, 2 = long) */
444 16, /* bitsize */
b34976b6 445 FALSE, /* pc_relative */
5bd4f169
AM
446 0, /* bitpos */
447 complain_overflow_signed, /* complain_on_overflow */
805fc799 448 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 449 "R_PPC64_GOT16", /* name */
b34976b6 450 FALSE, /* partial_inplace */
5bd4f169
AM
451 0, /* src_mask */
452 0xffff, /* dst_mask */
b34976b6 453 FALSE), /* pcrel_offset */
5bd4f169
AM
454
455 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
456 the symbol. */
457 HOWTO (R_PPC64_GOT16_LO, /* type */
458 0, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
b34976b6 461 FALSE, /* pc_relative */
5bd4f169
AM
462 0, /* bitpos */
463 complain_overflow_dont, /* complain_on_overflow */
805fc799 464 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 465 "R_PPC64_GOT16_LO", /* name */
b34976b6 466 FALSE, /* partial_inplace */
5bd4f169
AM
467 0, /* src_mask */
468 0xffff, /* dst_mask */
b34976b6 469 FALSE), /* pcrel_offset */
5bd4f169
AM
470
471 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
472 the symbol. */
473 HOWTO (R_PPC64_GOT16_HI, /* type */
474 16, /* rightshift */
475 1, /* size (0 = byte, 1 = short, 2 = long) */
476 16, /* bitsize */
b34976b6 477 FALSE, /* pc_relative */
5bd4f169
AM
478 0, /* bitpos */
479 complain_overflow_dont,/* complain_on_overflow */
805fc799 480 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 481 "R_PPC64_GOT16_HI", /* name */
b34976b6 482 FALSE, /* partial_inplace */
5bd4f169
AM
483 0, /* src_mask */
484 0xffff, /* dst_mask */
b34976b6 485 FALSE), /* pcrel_offset */
5bd4f169
AM
486
487 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
488 the symbol. */
489 HOWTO (R_PPC64_GOT16_HA, /* type */
490 16, /* rightshift */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
b34976b6 493 FALSE, /* pc_relative */
5bd4f169
AM
494 0, /* bitpos */
495 complain_overflow_dont,/* complain_on_overflow */
805fc799 496 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 497 "R_PPC64_GOT16_HA", /* name */
b34976b6 498 FALSE, /* partial_inplace */
5bd4f169
AM
499 0, /* src_mask */
500 0xffff, /* dst_mask */
b34976b6 501 FALSE), /* pcrel_offset */
5bd4f169
AM
502
503 /* This is used only by the dynamic linker. The symbol should exist
504 both in the object being run and in some shared library. The
505 dynamic linker copies the data addressed by the symbol from the
506 shared library into the object, because the object being
507 run has to have the data at some particular address. */
508 HOWTO (R_PPC64_COPY, /* type */
509 0, /* rightshift */
f5e87a1d
AM
510 0, /* this one is variable size */
511 0, /* bitsize */
b34976b6 512 FALSE, /* pc_relative */
5bd4f169 513 0, /* bitpos */
f5e87a1d
AM
514 complain_overflow_dont, /* complain_on_overflow */
515 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 516 "R_PPC64_COPY", /* name */
b34976b6 517 FALSE, /* partial_inplace */
5bd4f169
AM
518 0, /* src_mask */
519 0, /* dst_mask */
b34976b6 520 FALSE), /* pcrel_offset */
5bd4f169
AM
521
522 /* Like R_PPC64_ADDR64, but used when setting global offset table
523 entries. */
524 HOWTO (R_PPC64_GLOB_DAT, /* type */
525 0, /* rightshift */
526 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
527 64, /* bitsize */
b34976b6 528 FALSE, /* pc_relative */
5bd4f169
AM
529 0, /* bitpos */
530 complain_overflow_dont, /* complain_on_overflow */
805fc799 531 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 532 "R_PPC64_GLOB_DAT", /* name */
b34976b6 533 FALSE, /* partial_inplace */
5bd4f169 534 0, /* src_mask */
f5e87a1d 535 ONES (64), /* dst_mask */
b34976b6 536 FALSE), /* pcrel_offset */
5bd4f169
AM
537
538 /* Created by the link editor. Marks a procedure linkage table
539 entry for a symbol. */
540 HOWTO (R_PPC64_JMP_SLOT, /* type */
541 0, /* rightshift */
542 0, /* size (0 = byte, 1 = short, 2 = long) */
543 0, /* bitsize */
b34976b6 544 FALSE, /* pc_relative */
5bd4f169
AM
545 0, /* bitpos */
546 complain_overflow_dont, /* complain_on_overflow */
805fc799 547 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 548 "R_PPC64_JMP_SLOT", /* name */
b34976b6 549 FALSE, /* partial_inplace */
5bd4f169
AM
550 0, /* src_mask */
551 0, /* dst_mask */
b34976b6 552 FALSE), /* pcrel_offset */
5bd4f169
AM
553
554 /* Used only by the dynamic linker. When the object is run, this
555 doubleword64 is set to the load address of the object, plus the
556 addend. */
557 HOWTO (R_PPC64_RELATIVE, /* type */
558 0, /* rightshift */
559 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
560 64, /* bitsize */
b34976b6 561 FALSE, /* pc_relative */
5bd4f169
AM
562 0, /* bitpos */
563 complain_overflow_dont, /* complain_on_overflow */
564 bfd_elf_generic_reloc, /* special_function */
565 "R_PPC64_RELATIVE", /* name */
b34976b6 566 FALSE, /* partial_inplace */
5bd4f169 567 0, /* src_mask */
f5e87a1d 568 ONES (64), /* dst_mask */
b34976b6 569 FALSE), /* pcrel_offset */
5bd4f169
AM
570
571 /* Like R_PPC64_ADDR32, but may be unaligned. */
572 HOWTO (R_PPC64_UADDR32, /* type */
573 0, /* rightshift */
574 2, /* size (0 = byte, 1 = short, 2 = long) */
575 32, /* bitsize */
b34976b6 576 FALSE, /* pc_relative */
5bd4f169
AM
577 0, /* bitpos */
578 complain_overflow_bitfield, /* complain_on_overflow */
579 bfd_elf_generic_reloc, /* special_function */
580 "R_PPC64_UADDR32", /* name */
b34976b6 581 FALSE, /* partial_inplace */
5bd4f169
AM
582 0, /* src_mask */
583 0xffffffff, /* dst_mask */
b34976b6 584 FALSE), /* pcrel_offset */
5bd4f169
AM
585
586 /* Like R_PPC64_ADDR16, but may be unaligned. */
587 HOWTO (R_PPC64_UADDR16, /* type */
588 0, /* rightshift */
589 1, /* size (0 = byte, 1 = short, 2 = long) */
590 16, /* bitsize */
b34976b6 591 FALSE, /* pc_relative */
5bd4f169
AM
592 0, /* bitpos */
593 complain_overflow_bitfield, /* complain_on_overflow */
594 bfd_elf_generic_reloc, /* special_function */
595 "R_PPC64_UADDR16", /* name */
b34976b6 596 FALSE, /* partial_inplace */
5bd4f169
AM
597 0, /* src_mask */
598 0xffff, /* dst_mask */
b34976b6 599 FALSE), /* pcrel_offset */
5bd4f169
AM
600
601 /* 32-bit PC relative. */
602 HOWTO (R_PPC64_REL32, /* type */
603 0, /* rightshift */
604 2, /* size (0 = byte, 1 = short, 2 = long) */
605 32, /* bitsize */
b34976b6 606 TRUE, /* pc_relative */
5bd4f169 607 0, /* bitpos */
cedb70c5 608 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM
609 complain_overflow_signed, /* complain_on_overflow */
610 bfd_elf_generic_reloc, /* special_function */
611 "R_PPC64_REL32", /* name */
b34976b6 612 FALSE, /* partial_inplace */
5bd4f169
AM
613 0, /* src_mask */
614 0xffffffff, /* dst_mask */
b34976b6 615 TRUE), /* pcrel_offset */
5bd4f169 616
10ed1bba 617 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM
618 HOWTO (R_PPC64_PLT32, /* type */
619 0, /* rightshift */
620 2, /* size (0 = byte, 1 = short, 2 = long) */
621 32, /* bitsize */
b34976b6 622 FALSE, /* pc_relative */
5bd4f169
AM
623 0, /* bitpos */
624 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 625 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 626 "R_PPC64_PLT32", /* name */
b34976b6 627 FALSE, /* partial_inplace */
5bd4f169 628 0, /* src_mask */
f5e87a1d 629 0xffffffff, /* dst_mask */
b34976b6 630 FALSE), /* pcrel_offset */
5bd4f169
AM
631
632 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
633 FIXME: R_PPC64_PLTREL32 not supported. */
634 HOWTO (R_PPC64_PLTREL32, /* type */
635 0, /* rightshift */
636 2, /* size (0 = byte, 1 = short, 2 = long) */
637 32, /* bitsize */
b34976b6 638 TRUE, /* pc_relative */
5bd4f169
AM
639 0, /* bitpos */
640 complain_overflow_signed, /* complain_on_overflow */
641 bfd_elf_generic_reloc, /* special_function */
642 "R_PPC64_PLTREL32", /* name */
b34976b6 643 FALSE, /* partial_inplace */
5bd4f169 644 0, /* src_mask */
f5e87a1d 645 0xffffffff, /* dst_mask */
b34976b6 646 TRUE), /* pcrel_offset */
5bd4f169
AM
647
648 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
649 the symbol. */
650 HOWTO (R_PPC64_PLT16_LO, /* type */
651 0, /* rightshift */
652 1, /* size (0 = byte, 1 = short, 2 = long) */
653 16, /* bitsize */
b34976b6 654 FALSE, /* pc_relative */
5bd4f169
AM
655 0, /* bitpos */
656 complain_overflow_dont, /* complain_on_overflow */
805fc799 657 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 658 "R_PPC64_PLT16_LO", /* name */
b34976b6 659 FALSE, /* partial_inplace */
5bd4f169
AM
660 0, /* src_mask */
661 0xffff, /* dst_mask */
b34976b6 662 FALSE), /* pcrel_offset */
5bd4f169
AM
663
664 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
665 the symbol. */
666 HOWTO (R_PPC64_PLT16_HI, /* type */
667 16, /* rightshift */
668 1, /* size (0 = byte, 1 = short, 2 = long) */
669 16, /* bitsize */
b34976b6 670 FALSE, /* pc_relative */
5bd4f169
AM
671 0, /* bitpos */
672 complain_overflow_dont, /* complain_on_overflow */
805fc799 673 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 674 "R_PPC64_PLT16_HI", /* name */
b34976b6 675 FALSE, /* partial_inplace */
5bd4f169
AM
676 0, /* src_mask */
677 0xffff, /* dst_mask */
b34976b6 678 FALSE), /* pcrel_offset */
5bd4f169
AM
679
680 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
681 the symbol. */
682 HOWTO (R_PPC64_PLT16_HA, /* type */
683 16, /* rightshift */
684 1, /* size (0 = byte, 1 = short, 2 = long) */
685 16, /* bitsize */
b34976b6 686 FALSE, /* pc_relative */
5bd4f169
AM
687 0, /* bitpos */
688 complain_overflow_dont, /* complain_on_overflow */
805fc799 689 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 690 "R_PPC64_PLT16_HA", /* name */
b34976b6 691 FALSE, /* partial_inplace */
5bd4f169
AM
692 0, /* src_mask */
693 0xffff, /* dst_mask */
b34976b6 694 FALSE), /* pcrel_offset */
5bd4f169 695
c061c2d8 696 /* 16-bit section relative relocation. */
5bd4f169
AM
697 HOWTO (R_PPC64_SECTOFF, /* type */
698 0, /* rightshift */
c061c2d8
AM
699 1, /* size (0 = byte, 1 = short, 2 = long) */
700 16, /* bitsize */
b34976b6 701 FALSE, /* pc_relative */
5bd4f169
AM
702 0, /* bitpos */
703 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 704 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 705 "R_PPC64_SECTOFF", /* name */
b34976b6 706 FALSE, /* partial_inplace */
5bd4f169 707 0, /* src_mask */
c061c2d8 708 0xffff, /* dst_mask */
b34976b6 709 FALSE), /* pcrel_offset */
5bd4f169 710
c061c2d8 711 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM
712 HOWTO (R_PPC64_SECTOFF_LO, /* type */
713 0, /* rightshift */
714 1, /* size (0 = byte, 1 = short, 2 = long) */
715 16, /* bitsize */
b34976b6 716 FALSE, /* pc_relative */
5bd4f169
AM
717 0, /* bitpos */
718 complain_overflow_dont, /* complain_on_overflow */
805fc799 719 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 720 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 721 FALSE, /* partial_inplace */
5bd4f169
AM
722 0, /* src_mask */
723 0xffff, /* dst_mask */
b34976b6 724 FALSE), /* pcrel_offset */
5bd4f169
AM
725
726 /* 16-bit upper half section relative relocation. */
727 HOWTO (R_PPC64_SECTOFF_HI, /* type */
728 16, /* rightshift */
729 1, /* size (0 = byte, 1 = short, 2 = long) */
730 16, /* bitsize */
b34976b6 731 FALSE, /* pc_relative */
5bd4f169
AM
732 0, /* bitpos */
733 complain_overflow_dont, /* complain_on_overflow */
805fc799 734 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 735 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 736 FALSE, /* partial_inplace */
5bd4f169
AM
737 0, /* src_mask */
738 0xffff, /* dst_mask */
b34976b6 739 FALSE), /* pcrel_offset */
5bd4f169
AM
740
741 /* 16-bit upper half adjusted section relative relocation. */
742 HOWTO (R_PPC64_SECTOFF_HA, /* type */
743 16, /* rightshift */
744 1, /* size (0 = byte, 1 = short, 2 = long) */
745 16, /* bitsize */
b34976b6 746 FALSE, /* pc_relative */
5bd4f169
AM
747 0, /* bitpos */
748 complain_overflow_dont, /* complain_on_overflow */
805fc799 749 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 750 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 751 FALSE, /* partial_inplace */
5bd4f169
AM
752 0, /* src_mask */
753 0xffff, /* dst_mask */
b34976b6 754 FALSE), /* pcrel_offset */
5bd4f169 755
04c9666a
AM
756 /* Like R_PPC64_REL24 without touching the two least significant bits. */
757 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM
758 2, /* rightshift */
759 2, /* size (0 = byte, 1 = short, 2 = long) */
760 30, /* bitsize */
b34976b6 761 TRUE, /* pc_relative */
5bd4f169
AM
762 0, /* bitpos */
763 complain_overflow_dont, /* complain_on_overflow */
764 bfd_elf_generic_reloc, /* special_function */
04c9666a 765 "R_PPC64_REL30", /* name */
b34976b6 766 FALSE, /* partial_inplace */
d006db6c 767 0, /* src_mask */
5bd4f169 768 0xfffffffc, /* dst_mask */
b34976b6 769 TRUE), /* pcrel_offset */
5bd4f169
AM
770
771 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
772
773 /* A standard 64-bit relocation. */
774 HOWTO (R_PPC64_ADDR64, /* type */
775 0, /* rightshift */
776 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
777 64, /* bitsize */
b34976b6 778 FALSE, /* pc_relative */
5bd4f169
AM
779 0, /* bitpos */
780 complain_overflow_dont, /* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_PPC64_ADDR64", /* name */
b34976b6 783 FALSE, /* partial_inplace */
5bd4f169 784 0, /* src_mask */
f5e87a1d 785 ONES (64), /* dst_mask */
b34976b6 786 FALSE), /* pcrel_offset */
5bd4f169
AM
787
788 /* The bits 32-47 of an address. */
789 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
790 32, /* rightshift */
791 1, /* size (0 = byte, 1 = short, 2 = long) */
792 16, /* bitsize */
b34976b6 793 FALSE, /* pc_relative */
5bd4f169
AM
794 0, /* bitpos */
795 complain_overflow_dont, /* complain_on_overflow */
796 bfd_elf_generic_reloc, /* special_function */
797 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 798 FALSE, /* partial_inplace */
5bd4f169
AM
799 0, /* src_mask */
800 0xffff, /* dst_mask */
b34976b6 801 FALSE), /* pcrel_offset */
5bd4f169
AM
802
803 /* The bits 32-47 of an address, plus 1 if the contents of the low
804 16 bits, treated as a signed number, is negative. */
805 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
806 32, /* rightshift */
807 1, /* size (0 = byte, 1 = short, 2 = long) */
808 16, /* bitsize */
b34976b6 809 FALSE, /* pc_relative */
5bd4f169
AM
810 0, /* bitpos */
811 complain_overflow_dont, /* complain_on_overflow */
805fc799 812 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 813 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 814 FALSE, /* partial_inplace */
5bd4f169
AM
815 0, /* src_mask */
816 0xffff, /* dst_mask */
b34976b6 817 FALSE), /* pcrel_offset */
5bd4f169
AM
818
819 /* The bits 48-63 of an address. */
820 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
821 48, /* rightshift */
822 1, /* size (0 = byte, 1 = short, 2 = long) */
823 16, /* bitsize */
b34976b6 824 FALSE, /* pc_relative */
5bd4f169
AM
825 0, /* bitpos */
826 complain_overflow_dont, /* complain_on_overflow */
827 bfd_elf_generic_reloc, /* special_function */
828 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 829 FALSE, /* partial_inplace */
5bd4f169
AM
830 0, /* src_mask */
831 0xffff, /* dst_mask */
b34976b6 832 FALSE), /* pcrel_offset */
5bd4f169
AM
833
834 /* The bits 48-63 of an address, plus 1 if the contents of the low
835 16 bits, treated as a signed number, is negative. */
836 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
837 48, /* rightshift */
838 1, /* size (0 = byte, 1 = short, 2 = long) */
839 16, /* bitsize */
b34976b6 840 FALSE, /* pc_relative */
5bd4f169
AM
841 0, /* bitpos */
842 complain_overflow_dont, /* complain_on_overflow */
805fc799 843 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 844 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 845 FALSE, /* partial_inplace */
5bd4f169
AM
846 0, /* src_mask */
847 0xffff, /* dst_mask */
b34976b6 848 FALSE), /* pcrel_offset */
5bd4f169
AM
849
850 /* Like ADDR64, but may be unaligned. */
851 HOWTO (R_PPC64_UADDR64, /* type */
852 0, /* rightshift */
853 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
854 64, /* bitsize */
b34976b6 855 FALSE, /* pc_relative */
5bd4f169
AM
856 0, /* bitpos */
857 complain_overflow_dont, /* complain_on_overflow */
858 bfd_elf_generic_reloc, /* special_function */
859 "R_PPC64_UADDR64", /* name */
b34976b6 860 FALSE, /* partial_inplace */
5bd4f169 861 0, /* src_mask */
f5e87a1d 862 ONES (64), /* dst_mask */
b34976b6 863 FALSE), /* pcrel_offset */
5bd4f169
AM
864
865 /* 64-bit relative relocation. */
866 HOWTO (R_PPC64_REL64, /* type */
867 0, /* rightshift */
868 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
869 64, /* bitsize */
b34976b6 870 TRUE, /* pc_relative */
5bd4f169
AM
871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
873 bfd_elf_generic_reloc, /* special_function */
874 "R_PPC64_REL64", /* name */
b34976b6 875 FALSE, /* partial_inplace */
5bd4f169 876 0, /* src_mask */
f5e87a1d 877 ONES (64), /* dst_mask */
b34976b6 878 TRUE), /* pcrel_offset */
5bd4f169 879
cedb70c5 880 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM
881 HOWTO (R_PPC64_PLT64, /* type */
882 0, /* rightshift */
883 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
884 64, /* bitsize */
b34976b6 885 FALSE, /* pc_relative */
5bd4f169
AM
886 0, /* bitpos */
887 complain_overflow_dont, /* complain_on_overflow */
805fc799 888 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 889 "R_PPC64_PLT64", /* name */
b34976b6 890 FALSE, /* partial_inplace */
5bd4f169 891 0, /* src_mask */
f5e87a1d 892 ONES (64), /* dst_mask */
b34976b6 893 FALSE), /* pcrel_offset */
5bd4f169
AM
894
895 /* 64-bit PC relative relocation to the symbol's procedure linkage
896 table. */
897 /* FIXME: R_PPC64_PLTREL64 not supported. */
898 HOWTO (R_PPC64_PLTREL64, /* type */
899 0, /* rightshift */
900 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
901 64, /* bitsize */
b34976b6 902 TRUE, /* pc_relative */
5bd4f169
AM
903 0, /* bitpos */
904 complain_overflow_dont, /* complain_on_overflow */
805fc799 905 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 906 "R_PPC64_PLTREL64", /* name */
b34976b6 907 FALSE, /* partial_inplace */
5bd4f169 908 0, /* src_mask */
f5e87a1d 909 ONES (64), /* dst_mask */
b34976b6 910 TRUE), /* pcrel_offset */
5bd4f169
AM
911
912 /* 16 bit TOC-relative relocation. */
913
914 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
915 HOWTO (R_PPC64_TOC16, /* type */
916 0, /* rightshift */
917 1, /* size (0 = byte, 1 = short, 2 = long) */
918 16, /* bitsize */
b34976b6 919 FALSE, /* pc_relative */
5bd4f169
AM
920 0, /* bitpos */
921 complain_overflow_signed, /* complain_on_overflow */
805fc799 922 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 923 "R_PPC64_TOC16", /* name */
b34976b6 924 FALSE, /* partial_inplace */
5bd4f169
AM
925 0, /* src_mask */
926 0xffff, /* dst_mask */
b34976b6 927 FALSE), /* pcrel_offset */
5bd4f169
AM
928
929 /* 16 bit TOC-relative relocation without overflow. */
930
931 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
932 HOWTO (R_PPC64_TOC16_LO, /* type */
933 0, /* rightshift */
934 1, /* size (0 = byte, 1 = short, 2 = long) */
935 16, /* bitsize */
b34976b6 936 FALSE, /* pc_relative */
5bd4f169
AM
937 0, /* bitpos */
938 complain_overflow_dont, /* complain_on_overflow */
805fc799 939 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 940 "R_PPC64_TOC16_LO", /* name */
b34976b6 941 FALSE, /* partial_inplace */
5bd4f169
AM
942 0, /* src_mask */
943 0xffff, /* dst_mask */
b34976b6 944 FALSE), /* pcrel_offset */
5bd4f169
AM
945
946 /* 16 bit TOC-relative relocation, high 16 bits. */
947
948 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
949 HOWTO (R_PPC64_TOC16_HI, /* type */
950 16, /* rightshift */
951 1, /* size (0 = byte, 1 = short, 2 = long) */
952 16, /* bitsize */
b34976b6 953 FALSE, /* pc_relative */
5bd4f169
AM
954 0, /* bitpos */
955 complain_overflow_dont, /* complain_on_overflow */
805fc799 956 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 957 "R_PPC64_TOC16_HI", /* name */
b34976b6 958 FALSE, /* partial_inplace */
5bd4f169
AM
959 0, /* src_mask */
960 0xffff, /* dst_mask */
b34976b6 961 FALSE), /* pcrel_offset */
5bd4f169
AM
962
963 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
964 contents of the low 16 bits, treated as a signed number, is
965 negative. */
966
967 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
968 HOWTO (R_PPC64_TOC16_HA, /* type */
969 16, /* rightshift */
970 1, /* size (0 = byte, 1 = short, 2 = long) */
971 16, /* bitsize */
b34976b6 972 FALSE, /* pc_relative */
5bd4f169
AM
973 0, /* bitpos */
974 complain_overflow_dont, /* complain_on_overflow */
805fc799 975 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 976 "R_PPC64_TOC16_HA", /* name */
b34976b6 977 FALSE, /* partial_inplace */
5bd4f169
AM
978 0, /* src_mask */
979 0xffff, /* dst_mask */
b34976b6 980 FALSE), /* pcrel_offset */
5bd4f169
AM
981
982 /* 64-bit relocation; insert value of TOC base (.TOC.). */
983
984 /* R_PPC64_TOC 51 doubleword64 .TOC. */
985 HOWTO (R_PPC64_TOC, /* type */
986 0, /* rightshift */
987 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
988 64, /* bitsize */
b34976b6 989 FALSE, /* pc_relative */
5bd4f169
AM
990 0, /* bitpos */
991 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 992 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 993 "R_PPC64_TOC", /* name */
b34976b6 994 FALSE, /* partial_inplace */
5bd4f169 995 0, /* src_mask */
f5e87a1d 996 ONES (64), /* dst_mask */
b34976b6 997 FALSE), /* pcrel_offset */
5bd4f169
AM
998
999 /* Like R_PPC64_GOT16, but also informs the link editor that the
1000 value to relocate may (!) refer to a PLT entry which the link
1001 editor (a) may replace with the symbol value. If the link editor
1002 is unable to fully resolve the symbol, it may (b) create a PLT
1003 entry and store the address to the new PLT entry in the GOT.
1004 This permits lazy resolution of function symbols at run time.
1005 The link editor may also skip all of this and just (c) emit a
1006 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
1007 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
1008 HOWTO (R_PPC64_PLTGOT16, /* type */
1009 0, /* rightshift */
1010 1, /* size (0 = byte, 1 = short, 2 = long) */
1011 16, /* bitsize */
b34976b6 1012 FALSE, /* pc_relative */
5bd4f169
AM
1013 0, /* bitpos */
1014 complain_overflow_signed, /* complain_on_overflow */
805fc799 1015 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM
1016 "R_PPC64_PLTGOT16", /* name */
1017 FALSE, /* partial_inplace */
1018 0, /* src_mask */
1019 0xffff, /* dst_mask */
1020 FALSE), /* pcrel_offset */
1021
1022 /* Like R_PPC64_PLTGOT16, but without overflow. */
1023 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1024 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1025 0, /* rightshift */
1026 1, /* size (0 = byte, 1 = short, 2 = long) */
1027 16, /* bitsize */
1028 FALSE, /* pc_relative */
1029 0, /* bitpos */
1030 complain_overflow_dont, /* complain_on_overflow */
1031 ppc64_elf_unhandled_reloc, /* special_function */
1032 "R_PPC64_PLTGOT16_LO", /* name */
1033 FALSE, /* partial_inplace */
1034 0, /* src_mask */
1035 0xffff, /* dst_mask */
1036 FALSE), /* pcrel_offset */
1037
1038 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1039 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1040 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1041 16, /* rightshift */
1042 1, /* size (0 = byte, 1 = short, 2 = long) */
1043 16, /* bitsize */
1044 FALSE, /* pc_relative */
1045 0, /* bitpos */
1046 complain_overflow_dont, /* complain_on_overflow */
1047 ppc64_elf_unhandled_reloc, /* special_function */
1048 "R_PPC64_PLTGOT16_HI", /* name */
1049 FALSE, /* partial_inplace */
1050 0, /* src_mask */
1051 0xffff, /* dst_mask */
1052 FALSE), /* pcrel_offset */
1053
1054 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1055 1 if the contents of the low 16 bits, treated as a signed number,
1056 is negative. */
1057 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1058 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1059 16, /* rightshift */
1060 1, /* size (0 = byte, 1 = short, 2 = long) */
1061 16, /* bitsize */
1062 FALSE, /* pc_relative */
1063 0, /* bitpos */
1064 complain_overflow_dont,/* complain_on_overflow */
1065 ppc64_elf_unhandled_reloc, /* special_function */
1066 "R_PPC64_PLTGOT16_HA", /* name */
1067 FALSE, /* partial_inplace */
1068 0, /* src_mask */
1069 0xffff, /* dst_mask */
1070 FALSE), /* pcrel_offset */
1071
1072 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1073 HOWTO (R_PPC64_ADDR16_DS, /* type */
1074 0, /* rightshift */
1075 1, /* size (0 = byte, 1 = short, 2 = long) */
1076 16, /* bitsize */
1077 FALSE, /* pc_relative */
1078 0, /* bitpos */
1079 complain_overflow_bitfield, /* complain_on_overflow */
1080 bfd_elf_generic_reloc, /* special_function */
1081 "R_PPC64_ADDR16_DS", /* name */
1082 FALSE, /* partial_inplace */
1083 0, /* src_mask */
1084 0xfffc, /* dst_mask */
1085 FALSE), /* pcrel_offset */
1086
1087 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1088 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1089 0, /* rightshift */
1090 1, /* size (0 = byte, 1 = short, 2 = long) */
1091 16, /* bitsize */
1092 FALSE, /* pc_relative */
1093 0, /* bitpos */
1094 complain_overflow_dont,/* complain_on_overflow */
1095 bfd_elf_generic_reloc, /* special_function */
1096 "R_PPC64_ADDR16_LO_DS",/* name */
1097 FALSE, /* partial_inplace */
1098 0, /* src_mask */
1099 0xfffc, /* dst_mask */
1100 FALSE), /* pcrel_offset */
1101
1102 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1103 HOWTO (R_PPC64_GOT16_DS, /* type */
1104 0, /* rightshift */
1105 1, /* size (0 = byte, 1 = short, 2 = long) */
1106 16, /* bitsize */
1107 FALSE, /* pc_relative */
1108 0, /* bitpos */
1109 complain_overflow_signed, /* complain_on_overflow */
1110 ppc64_elf_unhandled_reloc, /* special_function */
1111 "R_PPC64_GOT16_DS", /* name */
1112 FALSE, /* partial_inplace */
1113 0, /* src_mask */
1114 0xfffc, /* dst_mask */
1115 FALSE), /* pcrel_offset */
1116
1117 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1118 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1119 0, /* rightshift */
1120 1, /* size (0 = byte, 1 = short, 2 = long) */
1121 16, /* bitsize */
1122 FALSE, /* pc_relative */
1123 0, /* bitpos */
1124 complain_overflow_dont, /* complain_on_overflow */
1125 ppc64_elf_unhandled_reloc, /* special_function */
1126 "R_PPC64_GOT16_LO_DS", /* name */
1127 FALSE, /* partial_inplace */
1128 0, /* src_mask */
1129 0xfffc, /* dst_mask */
1130 FALSE), /* pcrel_offset */
1131
1132 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1133 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1134 0, /* rightshift */
1135 1, /* size (0 = byte, 1 = short, 2 = long) */
1136 16, /* bitsize */
1137 FALSE, /* pc_relative */
1138 0, /* bitpos */
1139 complain_overflow_dont, /* complain_on_overflow */
1140 ppc64_elf_unhandled_reloc, /* special_function */
1141 "R_PPC64_PLT16_LO_DS", /* name */
1142 FALSE, /* partial_inplace */
1143 0, /* src_mask */
1144 0xfffc, /* dst_mask */
1145 FALSE), /* pcrel_offset */
1146
1147 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1148 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1149 0, /* rightshift */
1150 1, /* size (0 = byte, 1 = short, 2 = long) */
1151 16, /* bitsize */
1152 FALSE, /* pc_relative */
1153 0, /* bitpos */
1154 complain_overflow_bitfield, /* complain_on_overflow */
1155 ppc64_elf_sectoff_reloc, /* special_function */
1156 "R_PPC64_SECTOFF_DS", /* name */
1157 FALSE, /* partial_inplace */
1158 0, /* src_mask */
1159 0xfffc, /* dst_mask */
1160 FALSE), /* pcrel_offset */
1161
1162 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1163 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1164 0, /* rightshift */
1165 1, /* size (0 = byte, 1 = short, 2 = long) */
1166 16, /* bitsize */
1167 FALSE, /* pc_relative */
1168 0, /* bitpos */
1169 complain_overflow_dont, /* complain_on_overflow */
1170 ppc64_elf_sectoff_reloc, /* special_function */
1171 "R_PPC64_SECTOFF_LO_DS",/* name */
1172 FALSE, /* partial_inplace */
1173 0, /* src_mask */
1174 0xfffc, /* dst_mask */
1175 FALSE), /* pcrel_offset */
1176
1177 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1178 HOWTO (R_PPC64_TOC16_DS, /* type */
1179 0, /* rightshift */
1180 1, /* size (0 = byte, 1 = short, 2 = long) */
1181 16, /* bitsize */
1182 FALSE, /* pc_relative */
1183 0, /* bitpos */
1184 complain_overflow_signed, /* complain_on_overflow */
1185 ppc64_elf_toc_reloc, /* special_function */
1186 "R_PPC64_TOC16_DS", /* name */
1187 FALSE, /* partial_inplace */
1188 0, /* src_mask */
1189 0xfffc, /* dst_mask */
1190 FALSE), /* pcrel_offset */
1191
1192 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1193 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1194 0, /* rightshift */
1195 1, /* size (0 = byte, 1 = short, 2 = long) */
1196 16, /* bitsize */
1197 FALSE, /* pc_relative */
1198 0, /* bitpos */
1199 complain_overflow_dont, /* complain_on_overflow */
1200 ppc64_elf_toc_reloc, /* special_function */
1201 "R_PPC64_TOC16_LO_DS", /* name */
1202 FALSE, /* partial_inplace */
1203 0, /* src_mask */
1204 0xfffc, /* dst_mask */
1205 FALSE), /* pcrel_offset */
1206
1207 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1208 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
6bfdb61b 1209 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
411e1bfb
AM
1210 0, /* rightshift */
1211 1, /* size (0 = byte, 1 = short, 2 = long) */
1212 16, /* bitsize */
1213 FALSE, /* pc_relative */
1214 0, /* bitpos */
1215 complain_overflow_signed, /* complain_on_overflow */
1216 ppc64_elf_unhandled_reloc, /* special_function */
1217 "R_PPC64_PLTGOT16_DS", /* name */
1218 FALSE, /* partial_inplace */
1219 0, /* src_mask */
1220 0xfffc, /* dst_mask */
1221 FALSE), /* pcrel_offset */
1222
1223 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1224 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1225 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1226 0, /* rightshift */
1227 1, /* size (0 = byte, 1 = short, 2 = long) */
1228 16, /* bitsize */
1229 FALSE, /* pc_relative */
1230 0, /* bitpos */
1231 complain_overflow_dont, /* complain_on_overflow */
1232 ppc64_elf_unhandled_reloc, /* special_function */
1233 "R_PPC64_PLTGOT16_LO_DS",/* name */
1234 FALSE, /* partial_inplace */
1235 0, /* src_mask */
1236 0xfffc, /* dst_mask */
1237 FALSE), /* pcrel_offset */
1238
727fc41e 1239 /* Marker relocs for TLS. */
411e1bfb
AM
1240 HOWTO (R_PPC64_TLS,
1241 0, /* rightshift */
1242 2, /* size (0 = byte, 1 = short, 2 = long) */
1243 32, /* bitsize */
1244 FALSE, /* pc_relative */
1245 0, /* bitpos */
1246 complain_overflow_dont, /* complain_on_overflow */
1247 bfd_elf_generic_reloc, /* special_function */
1248 "R_PPC64_TLS", /* name */
1249 FALSE, /* partial_inplace */
1250 0, /* src_mask */
1251 0, /* dst_mask */
1252 FALSE), /* pcrel_offset */
1253
727fc41e
AM
1254 HOWTO (R_PPC64_TLSGD,
1255 0, /* rightshift */
1256 2, /* size (0 = byte, 1 = short, 2 = long) */
1257 32, /* bitsize */
1258 FALSE, /* pc_relative */
1259 0, /* bitpos */
1260 complain_overflow_dont, /* complain_on_overflow */
1261 bfd_elf_generic_reloc, /* special_function */
1262 "R_PPC64_TLSGD", /* name */
1263 FALSE, /* partial_inplace */
1264 0, /* src_mask */
1265 0, /* dst_mask */
1266 FALSE), /* pcrel_offset */
1267
1268 HOWTO (R_PPC64_TLSLD,
1269 0, /* rightshift */
1270 2, /* size (0 = byte, 1 = short, 2 = long) */
1271 32, /* bitsize */
1272 FALSE, /* pc_relative */
1273 0, /* bitpos */
1274 complain_overflow_dont, /* complain_on_overflow */
1275 bfd_elf_generic_reloc, /* special_function */
1276 "R_PPC64_TLSLD", /* name */
1277 FALSE, /* partial_inplace */
1278 0, /* src_mask */
1279 0, /* dst_mask */
1280 FALSE), /* pcrel_offset */
1281
411e1bfb
AM
1282 /* Computes the load module index of the load module that contains the
1283 definition of its TLS sym. */
1284 HOWTO (R_PPC64_DTPMOD64,
1285 0, /* rightshift */
1286 4, /* size (0 = byte, 1 = short, 2 = long) */
1287 64, /* bitsize */
1288 FALSE, /* pc_relative */
1289 0, /* bitpos */
1290 complain_overflow_dont, /* complain_on_overflow */
1291 ppc64_elf_unhandled_reloc, /* special_function */
1292 "R_PPC64_DTPMOD64", /* name */
1293 FALSE, /* partial_inplace */
1294 0, /* src_mask */
1295 ONES (64), /* dst_mask */
1296 FALSE), /* pcrel_offset */
1297
1298 /* Computes a dtv-relative displacement, the difference between the value
1299 of sym+add and the base address of the thread-local storage block that
1300 contains the definition of sym, minus 0x8000. */
1301 HOWTO (R_PPC64_DTPREL64,
1302 0, /* rightshift */
1303 4, /* size (0 = byte, 1 = short, 2 = long) */
1304 64, /* bitsize */
1305 FALSE, /* pc_relative */
1306 0, /* bitpos */
1307 complain_overflow_dont, /* complain_on_overflow */
1308 ppc64_elf_unhandled_reloc, /* special_function */
1309 "R_PPC64_DTPREL64", /* name */
1310 FALSE, /* partial_inplace */
1311 0, /* src_mask */
1312 ONES (64), /* dst_mask */
1313 FALSE), /* pcrel_offset */
1314
1315 /* A 16 bit dtprel reloc. */
1316 HOWTO (R_PPC64_DTPREL16,
1317 0, /* rightshift */
1318 1, /* size (0 = byte, 1 = short, 2 = long) */
1319 16, /* bitsize */
1320 FALSE, /* pc_relative */
1321 0, /* bitpos */
1322 complain_overflow_signed, /* complain_on_overflow */
1323 ppc64_elf_unhandled_reloc, /* special_function */
1324 "R_PPC64_DTPREL16", /* name */
1325 FALSE, /* partial_inplace */
1326 0, /* src_mask */
1327 0xffff, /* dst_mask */
1328 FALSE), /* pcrel_offset */
1329
1330 /* Like DTPREL16, but no overflow. */
1331 HOWTO (R_PPC64_DTPREL16_LO,
1332 0, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 16, /* bitsize */
1335 FALSE, /* pc_relative */
1336 0, /* bitpos */
1337 complain_overflow_dont, /* complain_on_overflow */
1338 ppc64_elf_unhandled_reloc, /* special_function */
1339 "R_PPC64_DTPREL16_LO", /* name */
1340 FALSE, /* partial_inplace */
1341 0, /* src_mask */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1344
1345 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1346 HOWTO (R_PPC64_DTPREL16_HI,
1347 16, /* rightshift */
1348 1, /* size (0 = byte, 1 = short, 2 = long) */
1349 16, /* bitsize */
1350 FALSE, /* pc_relative */
1351 0, /* bitpos */
1352 complain_overflow_dont, /* complain_on_overflow */
1353 ppc64_elf_unhandled_reloc, /* special_function */
1354 "R_PPC64_DTPREL16_HI", /* name */
1355 FALSE, /* partial_inplace */
1356 0, /* src_mask */
1357 0xffff, /* dst_mask */
1358 FALSE), /* pcrel_offset */
1359
1360 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1361 HOWTO (R_PPC64_DTPREL16_HA,
1362 16, /* rightshift */
1363 1, /* size (0 = byte, 1 = short, 2 = long) */
1364 16, /* bitsize */
1365 FALSE, /* pc_relative */
1366 0, /* bitpos */
1367 complain_overflow_dont, /* complain_on_overflow */
1368 ppc64_elf_unhandled_reloc, /* special_function */
1369 "R_PPC64_DTPREL16_HA", /* name */
1370 FALSE, /* partial_inplace */
1371 0, /* src_mask */
1372 0xffff, /* dst_mask */
1373 FALSE), /* pcrel_offset */
1374
1375 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1376 HOWTO (R_PPC64_DTPREL16_HIGHER,
1377 32, /* rightshift */
1378 1, /* size (0 = byte, 1 = short, 2 = long) */
1379 16, /* bitsize */
1380 FALSE, /* pc_relative */
1381 0, /* bitpos */
1382 complain_overflow_dont, /* complain_on_overflow */
1383 ppc64_elf_unhandled_reloc, /* special_function */
1384 "R_PPC64_DTPREL16_HIGHER", /* name */
1385 FALSE, /* partial_inplace */
1386 0, /* src_mask */
1387 0xffff, /* dst_mask */
1388 FALSE), /* pcrel_offset */
1389
1390 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1391 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1392 32, /* rightshift */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1394 16, /* bitsize */
1395 FALSE, /* pc_relative */
1396 0, /* bitpos */
1397 complain_overflow_dont, /* complain_on_overflow */
1398 ppc64_elf_unhandled_reloc, /* special_function */
1399 "R_PPC64_DTPREL16_HIGHERA", /* name */
1400 FALSE, /* partial_inplace */
1401 0, /* src_mask */
1402 0xffff, /* dst_mask */
1403 FALSE), /* pcrel_offset */
1404
1405 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1406 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1407 48, /* rightshift */
1408 1, /* size (0 = byte, 1 = short, 2 = long) */
1409 16, /* bitsize */
1410 FALSE, /* pc_relative */
1411 0, /* bitpos */
1412 complain_overflow_dont, /* complain_on_overflow */
1413 ppc64_elf_unhandled_reloc, /* special_function */
1414 "R_PPC64_DTPREL16_HIGHEST", /* name */
1415 FALSE, /* partial_inplace */
1416 0, /* src_mask */
1417 0xffff, /* dst_mask */
1418 FALSE), /* pcrel_offset */
1419
1420 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1421 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1422 48, /* rightshift */
1423 1, /* size (0 = byte, 1 = short, 2 = long) */
1424 16, /* bitsize */
1425 FALSE, /* pc_relative */
1426 0, /* bitpos */
1427 complain_overflow_dont, /* complain_on_overflow */
1428 ppc64_elf_unhandled_reloc, /* special_function */
1429 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1430 FALSE, /* partial_inplace */
1431 0, /* src_mask */
1432 0xffff, /* dst_mask */
1433 FALSE), /* pcrel_offset */
1434
1435 /* Like DTPREL16, but for insns with a DS field. */
1436 HOWTO (R_PPC64_DTPREL16_DS,
1437 0, /* rightshift */
1438 1, /* size (0 = byte, 1 = short, 2 = long) */
1439 16, /* bitsize */
1440 FALSE, /* pc_relative */
1441 0, /* bitpos */
1442 complain_overflow_signed, /* complain_on_overflow */
1443 ppc64_elf_unhandled_reloc, /* special_function */
1444 "R_PPC64_DTPREL16_DS", /* name */
1445 FALSE, /* partial_inplace */
1446 0, /* src_mask */
1447 0xfffc, /* dst_mask */
1448 FALSE), /* pcrel_offset */
1449
1450 /* Like DTPREL16_DS, but no overflow. */
1451 HOWTO (R_PPC64_DTPREL16_LO_DS,
1452 0, /* rightshift */
1453 1, /* size (0 = byte, 1 = short, 2 = long) */
1454 16, /* bitsize */
1455 FALSE, /* pc_relative */
1456 0, /* bitpos */
1457 complain_overflow_dont, /* complain_on_overflow */
1458 ppc64_elf_unhandled_reloc, /* special_function */
1459 "R_PPC64_DTPREL16_LO_DS", /* name */
1460 FALSE, /* partial_inplace */
1461 0, /* src_mask */
1462 0xfffc, /* dst_mask */
1463 FALSE), /* pcrel_offset */
1464
1465 /* Computes a tp-relative displacement, the difference between the value of
1466 sym+add and the value of the thread pointer (r13). */
1467 HOWTO (R_PPC64_TPREL64,
1468 0, /* rightshift */
1469 4, /* size (0 = byte, 1 = short, 2 = long) */
1470 64, /* bitsize */
1471 FALSE, /* pc_relative */
1472 0, /* bitpos */
1473 complain_overflow_dont, /* complain_on_overflow */
1474 ppc64_elf_unhandled_reloc, /* special_function */
1475 "R_PPC64_TPREL64", /* name */
1476 FALSE, /* partial_inplace */
1477 0, /* src_mask */
1478 ONES (64), /* dst_mask */
1479 FALSE), /* pcrel_offset */
1480
1481 /* A 16 bit tprel reloc. */
1482 HOWTO (R_PPC64_TPREL16,
1483 0, /* rightshift */
1484 1, /* size (0 = byte, 1 = short, 2 = long) */
1485 16, /* bitsize */
1486 FALSE, /* pc_relative */
1487 0, /* bitpos */
1488 complain_overflow_signed, /* complain_on_overflow */
1489 ppc64_elf_unhandled_reloc, /* special_function */
1490 "R_PPC64_TPREL16", /* name */
1491 FALSE, /* partial_inplace */
1492 0, /* src_mask */
1493 0xffff, /* dst_mask */
1494 FALSE), /* pcrel_offset */
1495
1496 /* Like TPREL16, but no overflow. */
1497 HOWTO (R_PPC64_TPREL16_LO,
1498 0, /* rightshift */
1499 1, /* size (0 = byte, 1 = short, 2 = long) */
1500 16, /* bitsize */
1501 FALSE, /* pc_relative */
1502 0, /* bitpos */
1503 complain_overflow_dont, /* complain_on_overflow */
1504 ppc64_elf_unhandled_reloc, /* special_function */
1505 "R_PPC64_TPREL16_LO", /* name */
1506 FALSE, /* partial_inplace */
1507 0, /* src_mask */
1508 0xffff, /* dst_mask */
1509 FALSE), /* pcrel_offset */
1510
1511 /* Like TPREL16_LO, but next higher group of 16 bits. */
1512 HOWTO (R_PPC64_TPREL16_HI,
1513 16, /* rightshift */
1514 1, /* size (0 = byte, 1 = short, 2 = long) */
1515 16, /* bitsize */
1516 FALSE, /* pc_relative */
1517 0, /* bitpos */
1518 complain_overflow_dont, /* complain_on_overflow */
1519 ppc64_elf_unhandled_reloc, /* special_function */
1520 "R_PPC64_TPREL16_HI", /* name */
1521 FALSE, /* partial_inplace */
1522 0, /* src_mask */
1523 0xffff, /* dst_mask */
1524 FALSE), /* pcrel_offset */
1525
1526 /* Like TPREL16_HI, but adjust for low 16 bits. */
1527 HOWTO (R_PPC64_TPREL16_HA,
1528 16, /* rightshift */
1529 1, /* size (0 = byte, 1 = short, 2 = long) */
1530 16, /* bitsize */
1531 FALSE, /* pc_relative */
1532 0, /* bitpos */
1533 complain_overflow_dont, /* complain_on_overflow */
1534 ppc64_elf_unhandled_reloc, /* special_function */
1535 "R_PPC64_TPREL16_HA", /* name */
1536 FALSE, /* partial_inplace */
1537 0, /* src_mask */
1538 0xffff, /* dst_mask */
1539 FALSE), /* pcrel_offset */
1540
1541 /* Like TPREL16_HI, but next higher group of 16 bits. */
1542 HOWTO (R_PPC64_TPREL16_HIGHER,
1543 32, /* rightshift */
1544 1, /* size (0 = byte, 1 = short, 2 = long) */
1545 16, /* bitsize */
1546 FALSE, /* pc_relative */
1547 0, /* bitpos */
1548 complain_overflow_dont, /* complain_on_overflow */
1549 ppc64_elf_unhandled_reloc, /* special_function */
1550 "R_PPC64_TPREL16_HIGHER", /* name */
1551 FALSE, /* partial_inplace */
1552 0, /* src_mask */
1553 0xffff, /* dst_mask */
1554 FALSE), /* pcrel_offset */
1555
1556 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1557 HOWTO (R_PPC64_TPREL16_HIGHERA,
1558 32, /* rightshift */
1559 1, /* size (0 = byte, 1 = short, 2 = long) */
1560 16, /* bitsize */
1561 FALSE, /* pc_relative */
1562 0, /* bitpos */
1563 complain_overflow_dont, /* complain_on_overflow */
1564 ppc64_elf_unhandled_reloc, /* special_function */
1565 "R_PPC64_TPREL16_HIGHERA", /* name */
1566 FALSE, /* partial_inplace */
1567 0, /* src_mask */
1568 0xffff, /* dst_mask */
1569 FALSE), /* pcrel_offset */
1570
1571 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1572 HOWTO (R_PPC64_TPREL16_HIGHEST,
1573 48, /* rightshift */
1574 1, /* size (0 = byte, 1 = short, 2 = long) */
1575 16, /* bitsize */
1576 FALSE, /* pc_relative */
1577 0, /* bitpos */
1578 complain_overflow_dont, /* complain_on_overflow */
1579 ppc64_elf_unhandled_reloc, /* special_function */
1580 "R_PPC64_TPREL16_HIGHEST", /* name */
1581 FALSE, /* partial_inplace */
1582 0, /* src_mask */
1583 0xffff, /* dst_mask */
1584 FALSE), /* pcrel_offset */
1585
1586 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1587 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1588 48, /* rightshift */
1589 1, /* size (0 = byte, 1 = short, 2 = long) */
1590 16, /* bitsize */
1591 FALSE, /* pc_relative */
1592 0, /* bitpos */
1593 complain_overflow_dont, /* complain_on_overflow */
1594 ppc64_elf_unhandled_reloc, /* special_function */
1595 "R_PPC64_TPREL16_HIGHESTA", /* name */
1596 FALSE, /* partial_inplace */
1597 0, /* src_mask */
1598 0xffff, /* dst_mask */
1599 FALSE), /* pcrel_offset */
1600
1601 /* Like TPREL16, but for insns with a DS field. */
1602 HOWTO (R_PPC64_TPREL16_DS,
1603 0, /* rightshift */
1604 1, /* size (0 = byte, 1 = short, 2 = long) */
1605 16, /* bitsize */
1606 FALSE, /* pc_relative */
1607 0, /* bitpos */
1608 complain_overflow_signed, /* complain_on_overflow */
1609 ppc64_elf_unhandled_reloc, /* special_function */
1610 "R_PPC64_TPREL16_DS", /* name */
1611 FALSE, /* partial_inplace */
1612 0, /* src_mask */
1613 0xfffc, /* dst_mask */
1614 FALSE), /* pcrel_offset */
1615
1616 /* Like TPREL16_DS, but no overflow. */
1617 HOWTO (R_PPC64_TPREL16_LO_DS,
1618 0, /* rightshift */
1619 1, /* size (0 = byte, 1 = short, 2 = long) */
1620 16, /* bitsize */
1621 FALSE, /* pc_relative */
1622 0, /* bitpos */
1623 complain_overflow_dont, /* complain_on_overflow */
1624 ppc64_elf_unhandled_reloc, /* special_function */
1625 "R_PPC64_TPREL16_LO_DS", /* name */
1626 FALSE, /* partial_inplace */
1627 0, /* src_mask */
1628 0xfffc, /* dst_mask */
1629 FALSE), /* pcrel_offset */
1630
1631 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1632 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1633 to the first entry relative to the TOC base (r2). */
1634 HOWTO (R_PPC64_GOT_TLSGD16,
1635 0, /* rightshift */
1636 1, /* size (0 = byte, 1 = short, 2 = long) */
1637 16, /* bitsize */
1638 FALSE, /* pc_relative */
1639 0, /* bitpos */
1640 complain_overflow_signed, /* complain_on_overflow */
1641 ppc64_elf_unhandled_reloc, /* special_function */
1642 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1643 FALSE, /* partial_inplace */
5bd4f169
AM
1644 0, /* src_mask */
1645 0xffff, /* dst_mask */
b34976b6 1646 FALSE), /* pcrel_offset */
5bd4f169 1647
411e1bfb
AM
1648 /* Like GOT_TLSGD16, but no overflow. */
1649 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM
1650 0, /* rightshift */
1651 1, /* size (0 = byte, 1 = short, 2 = long) */
1652 16, /* bitsize */
b34976b6 1653 FALSE, /* pc_relative */
5bd4f169
AM
1654 0, /* bitpos */
1655 complain_overflow_dont, /* complain_on_overflow */
805fc799 1656 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1657 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1658 FALSE, /* partial_inplace */
5bd4f169
AM
1659 0, /* src_mask */
1660 0xffff, /* dst_mask */
b34976b6 1661 FALSE), /* pcrel_offset */
5bd4f169 1662
411e1bfb
AM
1663 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1664 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM
1665 16, /* rightshift */
1666 1, /* size (0 = byte, 1 = short, 2 = long) */
1667 16, /* bitsize */
b34976b6 1668 FALSE, /* pc_relative */
5bd4f169
AM
1669 0, /* bitpos */
1670 complain_overflow_dont, /* complain_on_overflow */
805fc799 1671 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1672 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1673 FALSE, /* partial_inplace */
5bd4f169
AM
1674 0, /* src_mask */
1675 0xffff, /* dst_mask */
b34976b6 1676 FALSE), /* pcrel_offset */
5bd4f169 1677
411e1bfb
AM
1678 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1679 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM
1680 16, /* rightshift */
1681 1, /* size (0 = byte, 1 = short, 2 = long) */
1682 16, /* bitsize */
b34976b6 1683 FALSE, /* pc_relative */
5bd4f169 1684 0, /* bitpos */
411e1bfb 1685 complain_overflow_dont, /* complain_on_overflow */
805fc799 1686 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1687 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1688 FALSE, /* partial_inplace */
5bd4f169
AM
1689 0, /* src_mask */
1690 0xffff, /* dst_mask */
b34976b6 1691 FALSE), /* pcrel_offset */
5bd4f169 1692
411e1bfb
AM
1693 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1694 with values (sym+add)@dtpmod and zero, and computes the offset to the
1695 first entry relative to the TOC base (r2). */
1696 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM
1697 0, /* rightshift */
1698 1, /* size (0 = byte, 1 = short, 2 = long) */
1699 16, /* bitsize */
b34976b6 1700 FALSE, /* pc_relative */
5bd4f169 1701 0, /* bitpos */
411e1bfb
AM
1702 complain_overflow_signed, /* complain_on_overflow */
1703 ppc64_elf_unhandled_reloc, /* special_function */
1704 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1705 FALSE, /* partial_inplace */
d006db6c 1706 0, /* src_mask */
411e1bfb 1707 0xffff, /* dst_mask */
b34976b6 1708 FALSE), /* pcrel_offset */
5bd4f169 1709
411e1bfb
AM
1710 /* Like GOT_TLSLD16, but no overflow. */
1711 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM
1712 0, /* rightshift */
1713 1, /* size (0 = byte, 1 = short, 2 = long) */
1714 16, /* bitsize */
b34976b6 1715 FALSE, /* pc_relative */
5bd4f169 1716 0, /* bitpos */
411e1bfb
AM
1717 complain_overflow_dont, /* complain_on_overflow */
1718 ppc64_elf_unhandled_reloc, /* special_function */
1719 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1720 FALSE, /* partial_inplace */
d006db6c 1721 0, /* src_mask */
411e1bfb 1722 0xffff, /* dst_mask */
b34976b6 1723 FALSE), /* pcrel_offset */
5bd4f169 1724
411e1bfb
AM
1725 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1726 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1727 16, /* rightshift */
5bd4f169
AM
1728 1, /* size (0 = byte, 1 = short, 2 = long) */
1729 16, /* bitsize */
b34976b6 1730 FALSE, /* pc_relative */
5bd4f169 1731 0, /* bitpos */
411e1bfb 1732 complain_overflow_dont, /* complain_on_overflow */
805fc799 1733 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1734 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1735 FALSE, /* partial_inplace */
d006db6c 1736 0, /* src_mask */
411e1bfb 1737 0xffff, /* dst_mask */
b34976b6 1738 FALSE), /* pcrel_offset */
5bd4f169 1739
411e1bfb
AM
1740 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1741 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1742 16, /* rightshift */
5bd4f169
AM
1743 1, /* size (0 = byte, 1 = short, 2 = long) */
1744 16, /* bitsize */
b34976b6 1745 FALSE, /* pc_relative */
5bd4f169
AM
1746 0, /* bitpos */
1747 complain_overflow_dont, /* complain_on_overflow */
805fc799 1748 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1749 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1750 FALSE, /* partial_inplace */
d006db6c 1751 0, /* src_mask */
411e1bfb 1752 0xffff, /* dst_mask */
b34976b6 1753 FALSE), /* pcrel_offset */
5bd4f169 1754
411e1bfb
AM
1755 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1756 the offset to the entry relative to the TOC base (r2). */
1757 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM
1758 0, /* rightshift */
1759 1, /* size (0 = byte, 1 = short, 2 = long) */
1760 16, /* bitsize */
b34976b6 1761 FALSE, /* pc_relative */
5bd4f169 1762 0, /* bitpos */
411e1bfb 1763 complain_overflow_signed, /* complain_on_overflow */
805fc799 1764 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1765 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1766 FALSE, /* partial_inplace */
d006db6c 1767 0, /* src_mask */
5bd4f169 1768 0xfffc, /* dst_mask */
b34976b6 1769 FALSE), /* pcrel_offset */
5bd4f169 1770
411e1bfb
AM
1771 /* Like GOT_DTPREL16_DS, but no overflow. */
1772 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1773 0, /* rightshift */
c061c2d8
AM
1774 1, /* size (0 = byte, 1 = short, 2 = long) */
1775 16, /* bitsize */
b34976b6 1776 FALSE, /* pc_relative */
5bd4f169 1777 0, /* bitpos */
411e1bfb
AM
1778 complain_overflow_dont, /* complain_on_overflow */
1779 ppc64_elf_unhandled_reloc, /* special_function */
1780 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1781 FALSE, /* partial_inplace */
d006db6c 1782 0, /* src_mask */
c061c2d8 1783 0xfffc, /* dst_mask */
b34976b6 1784 FALSE), /* pcrel_offset */
5bd4f169 1785
411e1bfb
AM
1786 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1787 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1788 16, /* rightshift */
5bd4f169
AM
1789 1, /* size (0 = byte, 1 = short, 2 = long) */
1790 16, /* bitsize */
b34976b6 1791 FALSE, /* pc_relative */
5bd4f169
AM
1792 0, /* bitpos */
1793 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM
1794 ppc64_elf_unhandled_reloc, /* special_function */
1795 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1796 FALSE, /* partial_inplace */
d006db6c 1797 0, /* src_mask */
411e1bfb 1798 0xffff, /* dst_mask */
b34976b6 1799 FALSE), /* pcrel_offset */
5bd4f169 1800
411e1bfb
AM
1801 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1802 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1803 16, /* rightshift */
1804 1, /* size (0 = byte, 1 = short, 2 = long) */
1805 16, /* bitsize */
1806 FALSE, /* pc_relative */
1807 0, /* bitpos */
1808 complain_overflow_dont, /* complain_on_overflow */
1809 ppc64_elf_unhandled_reloc, /* special_function */
1810 "R_PPC64_GOT_DTPREL16_HA", /* name */
1811 FALSE, /* partial_inplace */
1812 0, /* src_mask */
1813 0xffff, /* dst_mask */
1814 FALSE), /* pcrel_offset */
1815
1816 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1817 offset to the entry relative to the TOC base (r2). */
1818 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM
1819 0, /* rightshift */
1820 1, /* size (0 = byte, 1 = short, 2 = long) */
1821 16, /* bitsize */
b34976b6 1822 FALSE, /* pc_relative */
5bd4f169
AM
1823 0, /* bitpos */
1824 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM
1825 ppc64_elf_unhandled_reloc, /* special_function */
1826 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1827 FALSE, /* partial_inplace */
d006db6c 1828 0, /* src_mask */
ad8e1ba5 1829 0xfffc, /* dst_mask */
b34976b6 1830 FALSE), /* pcrel_offset */
5bd4f169 1831
411e1bfb
AM
1832 /* Like GOT_TPREL16_DS, but no overflow. */
1833 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM
1834 0, /* rightshift */
1835 1, /* size (0 = byte, 1 = short, 2 = long) */
1836 16, /* bitsize */
b34976b6 1837 FALSE, /* pc_relative */
5bd4f169
AM
1838 0, /* bitpos */
1839 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM
1840 ppc64_elf_unhandled_reloc, /* special_function */
1841 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1842 FALSE, /* partial_inplace */
d006db6c 1843 0, /* src_mask */
ad8e1ba5 1844 0xfffc, /* dst_mask */
b34976b6 1845 FALSE), /* pcrel_offset */
5bd4f169 1846
411e1bfb
AM
1847 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1848 HOWTO (R_PPC64_GOT_TPREL16_HI,
1849 16, /* rightshift */
5bd4f169
AM
1850 1, /* size (0 = byte, 1 = short, 2 = long) */
1851 16, /* bitsize */
b34976b6 1852 FALSE, /* pc_relative */
5bd4f169 1853 0, /* bitpos */
411e1bfb 1854 complain_overflow_dont, /* complain_on_overflow */
805fc799 1855 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1856 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1857 FALSE, /* partial_inplace */
d006db6c 1858 0, /* src_mask */
411e1bfb 1859 0xffff, /* dst_mask */
b34976b6 1860 FALSE), /* pcrel_offset */
5bd4f169 1861
411e1bfb
AM
1862 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1863 HOWTO (R_PPC64_GOT_TPREL16_HA,
1864 16, /* rightshift */
5bd4f169
AM
1865 1, /* size (0 = byte, 1 = short, 2 = long) */
1866 16, /* bitsize */
b34976b6 1867 FALSE, /* pc_relative */
5bd4f169
AM
1868 0, /* bitpos */
1869 complain_overflow_dont, /* complain_on_overflow */
805fc799 1870 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1871 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1872 FALSE, /* partial_inplace */
d006db6c 1873 0, /* src_mask */
411e1bfb 1874 0xffff, /* dst_mask */
b34976b6 1875 FALSE), /* pcrel_offset */
5bd4f169 1876
25f23106
AM
1877 HOWTO (R_PPC64_JMP_IREL, /* type */
1878 0, /* rightshift */
1879 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1880 0, /* bitsize */
1881 FALSE, /* pc_relative */
1882 0, /* bitpos */
1883 complain_overflow_dont, /* complain_on_overflow */
1884 ppc64_elf_unhandled_reloc, /* special_function */
1885 "R_PPC64_JMP_IREL", /* name */
1886 FALSE, /* partial_inplace */
1887 0, /* src_mask */
1888 0, /* dst_mask */
1889 FALSE), /* pcrel_offset */
1890
e054468f
AM
1891 HOWTO (R_PPC64_IRELATIVE, /* type */
1892 0, /* rightshift */
1893 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
1894 64, /* bitsize */
1895 FALSE, /* pc_relative */
1896 0, /* bitpos */
1897 complain_overflow_dont, /* complain_on_overflow */
1898 bfd_elf_generic_reloc, /* special_function */
1899 "R_PPC64_IRELATIVE", /* name */
1900 FALSE, /* partial_inplace */
1901 0, /* src_mask */
1902 ONES (64), /* dst_mask */
1903 FALSE), /* pcrel_offset */
1904
25f23106
AM
1905 /* A 16 bit relative relocation. */
1906 HOWTO (R_PPC64_REL16, /* type */
1907 0, /* rightshift */
1908 1, /* size (0 = byte, 1 = short, 2 = long) */
1909 16, /* bitsize */
1910 TRUE, /* pc_relative */
1911 0, /* bitpos */
1912 complain_overflow_bitfield, /* complain_on_overflow */
1913 bfd_elf_generic_reloc, /* special_function */
1914 "R_PPC64_REL16", /* name */
1915 FALSE, /* partial_inplace */
1916 0, /* src_mask */
1917 0xffff, /* dst_mask */
1918 TRUE), /* pcrel_offset */
1919
1920 /* A 16 bit relative relocation without overflow. */
1921 HOWTO (R_PPC64_REL16_LO, /* type */
1922 0, /* rightshift */
1923 1, /* size (0 = byte, 1 = short, 2 = long) */
1924 16, /* bitsize */
1925 TRUE, /* pc_relative */
1926 0, /* bitpos */
1927 complain_overflow_dont,/* complain_on_overflow */
1928 bfd_elf_generic_reloc, /* special_function */
1929 "R_PPC64_REL16_LO", /* name */
1930 FALSE, /* partial_inplace */
1931 0, /* src_mask */
1932 0xffff, /* dst_mask */
1933 TRUE), /* pcrel_offset */
1934
1935 /* The high order 16 bits of a relative address. */
1936 HOWTO (R_PPC64_REL16_HI, /* type */
1937 16, /* rightshift */
1938 1, /* size (0 = byte, 1 = short, 2 = long) */
1939 16, /* bitsize */
1940 TRUE, /* pc_relative */
1941 0, /* bitpos */
1942 complain_overflow_dont, /* complain_on_overflow */
1943 bfd_elf_generic_reloc, /* special_function */
1944 "R_PPC64_REL16_HI", /* name */
1945 FALSE, /* partial_inplace */
1946 0, /* src_mask */
1947 0xffff, /* dst_mask */
1948 TRUE), /* pcrel_offset */
1949
1950 /* The high order 16 bits of a relative address, plus 1 if the contents of
1951 the low 16 bits, treated as a signed number, is negative. */
1952 HOWTO (R_PPC64_REL16_HA, /* type */
1953 16, /* rightshift */
1954 1, /* size (0 = byte, 1 = short, 2 = long) */
1955 16, /* bitsize */
1956 TRUE, /* pc_relative */
1957 0, /* bitpos */
1958 complain_overflow_dont, /* complain_on_overflow */
1959 ppc64_elf_ha_reloc, /* special_function */
1960 "R_PPC64_REL16_HA", /* name */
1961 FALSE, /* partial_inplace */
1962 0, /* src_mask */
1963 0xffff, /* dst_mask */
1964 TRUE), /* pcrel_offset */
1965
5bd4f169
AM
1966 /* GNU extension to record C++ vtable hierarchy. */
1967 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1968 0, /* rightshift */
1969 0, /* size (0 = byte, 1 = short, 2 = long) */
1970 0, /* bitsize */
b34976b6 1971 FALSE, /* pc_relative */
5bd4f169
AM
1972 0, /* bitpos */
1973 complain_overflow_dont, /* complain_on_overflow */
1974 NULL, /* special_function */
1975 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1976 FALSE, /* partial_inplace */
5bd4f169
AM
1977 0, /* src_mask */
1978 0, /* dst_mask */
b34976b6 1979 FALSE), /* pcrel_offset */
5bd4f169
AM
1980
1981 /* GNU extension to record C++ vtable member usage. */
1982 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1983 0, /* rightshift */
1984 0, /* size (0 = byte, 1 = short, 2 = long) */
1985 0, /* bitsize */
b34976b6 1986 FALSE, /* pc_relative */
5bd4f169
AM
1987 0, /* bitpos */
1988 complain_overflow_dont, /* complain_on_overflow */
1989 NULL, /* special_function */
1990 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1991 FALSE, /* partial_inplace */
5bd4f169
AM
1992 0, /* src_mask */
1993 0, /* dst_mask */
b34976b6 1994 FALSE), /* pcrel_offset */
5bd4f169
AM
1995};
1996
1997\f
1998/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1999 be done. */
2000
2001static void
4ce794b7 2002ppc_howto_init (void)
5bd4f169
AM
2003{
2004 unsigned int i, type;
2005
2006 for (i = 0;
2007 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2008 i++)
2009 {
2010 type = ppc64_elf_howto_raw[i].type;
2011 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2012 / sizeof (ppc64_elf_howto_table[0])));
2013 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
2014 }
2015}
2016
2017static reloc_howto_type *
4ce794b7
AM
2018ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2019 bfd_reloc_code_real_type code)
5bd4f169 2020{
411e1bfb 2021 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM
2022
2023 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2024 /* Initialize howto table if needed. */
2025 ppc_howto_init ();
2026
4ce794b7 2027 switch (code)
5bd4f169
AM
2028 {
2029 default:
4ce794b7 2030 return NULL;
5bd4f169 2031
411e1bfb
AM
2032 case BFD_RELOC_NONE: r = R_PPC64_NONE;
2033 break;
2034 case BFD_RELOC_32: r = R_PPC64_ADDR32;
2035 break;
2036 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
2037 break;
2038 case BFD_RELOC_16: r = R_PPC64_ADDR16;
2039 break;
2040 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
2041 break;
2042 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
2043 break;
2044 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 2045 break;
411e1bfb 2046 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 2047 break;
411e1bfb 2048 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 2049 break;
411e1bfb 2050 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 2051 break;
411e1bfb 2052 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 2053 break;
411e1bfb 2054 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 2055 break;
411e1bfb 2056 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 2057 break;
411e1bfb 2058 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 2059 break;
411e1bfb 2060 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 2061 break;
411e1bfb 2062 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 2063 break;
411e1bfb 2064 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 2065 break;
411e1bfb 2066 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 2067 break;
411e1bfb 2068 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 2069 break;
411e1bfb 2070 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 2071 break;
411e1bfb 2072 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 2073 break;
411e1bfb 2074 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 2075 break;
411e1bfb 2076 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 2077 break;
411e1bfb 2078 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 2079 break;
411e1bfb 2080 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 2081 break;
411e1bfb 2082 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 2083 break;
411e1bfb 2084 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 2085 break;
411e1bfb 2086 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 2087 break;
411e1bfb 2088 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 2089 break;
411e1bfb 2090 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 2091 break;
411e1bfb 2092 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 2093 break;
411e1bfb 2094 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 2095 break;
411e1bfb 2096 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 2097 break;
411e1bfb 2098 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 2099 break;
411e1bfb 2100 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 2101 break;
411e1bfb 2102 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 2103 break;
411e1bfb 2104 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 2105 break;
411e1bfb 2106 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 2107 break;
411e1bfb 2108 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 2109 break;
411e1bfb 2110 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 2111 break;
411e1bfb 2112 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 2113 break;
411e1bfb 2114 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 2115 break;
411e1bfb 2116 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 2117 break;
411e1bfb 2118 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 2119 break;
411e1bfb 2120 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 2121 break;
411e1bfb 2122 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 2123 break;
411e1bfb 2124 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 2125 break;
411e1bfb 2126 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 2127 break;
411e1bfb 2128 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 2129 break;
411e1bfb 2130 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 2131 break;
411e1bfb 2132 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 2133 break;
411e1bfb 2134 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 2135 break;
411e1bfb 2136 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 2137 break;
411e1bfb 2138 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 2139 break;
411e1bfb 2140 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 2141 break;
411e1bfb 2142 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 2143 break;
411e1bfb 2144 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2145 break;
411e1bfb 2146 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2147 break;
411e1bfb 2148 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2149 break;
411e1bfb 2150 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2151 break;
727fc41e
AM
2152 case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD;
2153 break;
2154 case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD;
2155 break;
411e1bfb 2156 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2157 break;
411e1bfb 2158 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2159 break;
411e1bfb 2160 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2161 break;
411e1bfb 2162 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2163 break;
411e1bfb 2164 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2165 break;
411e1bfb 2166 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2167 break;
411e1bfb
AM
2168 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2169 break;
2170 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2171 break;
2172 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2173 break;
2174 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2175 break;
2176 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2177 break;
2178 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2179 break;
2180 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2181 break;
2182 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2183 break;
2184 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2185 break;
2186 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2187 break;
2188 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2189 break;
2190 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2191 break;
2192 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2193 break;
2194 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2195 break;
2196 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2197 break;
2198 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2199 break;
2200 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2201 break;
2202 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2203 break;
2204 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2205 break;
2206 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2207 break;
2208 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2209 break;
2210 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2211 break;
2212 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2213 break;
2214 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2215 break;
2216 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2217 break;
2218 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2219 break;
2220 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2221 break;
2222 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2223 break;
2224 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2225 break;
2226 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2227 break;
2228 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2229 break;
2230 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2231 break;
2232 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2233 break;
25f23106
AM
2234 case BFD_RELOC_16_PCREL: r = R_PPC64_REL16;
2235 break;
2236 case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO;
2237 break;
2238 case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI;
2239 break;
2240 case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA;
2241 break;
411e1bfb
AM
2242 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2243 break;
2244 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM
2245 break;
2246 }
2247
4ce794b7 2248 return ppc64_elf_howto_table[r];
5bd4f169
AM
2249};
2250
157090f7
AM
2251static reloc_howto_type *
2252ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2253 const char *r_name)
2254{
2255 unsigned int i;
2256
2257 for (i = 0;
2258 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
2259 i++)
2260 if (ppc64_elf_howto_raw[i].name != NULL
2261 && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0)
2262 return &ppc64_elf_howto_raw[i];
2263
2264 return NULL;
2265}
2266
5bd4f169
AM
2267/* Set the howto pointer for a PowerPC ELF reloc. */
2268
2269static void
4ce794b7
AM
2270ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2271 Elf_Internal_Rela *dst)
5bd4f169 2272{
65f38f15
AM
2273 unsigned int type;
2274
ef60b7ff 2275 /* Initialize howto table if needed. */
5bd4f169 2276 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM
2277 ppc_howto_init ();
2278
65f38f15 2279 type = ELF64_R_TYPE (dst->r_info);
d0fb9a8d
JJ
2280 if (type >= (sizeof (ppc64_elf_howto_table)
2281 / sizeof (ppc64_elf_howto_table[0])))
2282 {
2283 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
3ec2b351
NC
2284 abfd, (int) type);
2285 type = R_PPC64_NONE;
d0fb9a8d 2286 }
65f38f15 2287 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM
2288}
2289
04c9666a 2290/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM
2291
2292static bfd_reloc_status_type
4ce794b7
AM
2293ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2294 void *data, asection *input_section,
2295 bfd *output_bfd, char **error_message)
5bd4f169 2296{
805fc799
AM
2297 /* If this is a relocatable link (output_bfd test tells us), just
2298 call the generic function. Any adjustment will be done at final
2299 link time. */
2300 if (output_bfd != NULL)
cedb70c5 2301 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2302 input_section, output_bfd, error_message);
2303
2304 /* Adjust the addend for sign extension of the low 16 bits.
2305 We won't actually be using the low 16 bits, so trashing them
2306 doesn't matter. */
2307 reloc_entry->addend += 0x8000;
2308 return bfd_reloc_continue;
2309}
5bd4f169 2310
2441e016
AM
2311static bfd_reloc_status_type
2312ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2313 void *data, asection *input_section,
2314 bfd *output_bfd, char **error_message)
2315{
2316 if (output_bfd != NULL)
2317 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2318 input_section, output_bfd, error_message);
2319
699733f6
AM
2320 if (strcmp (symbol->section->name, ".opd") == 0
2321 && (symbol->section->owner->flags & DYNAMIC) == 0)
2441e016
AM
2322 {
2323 bfd_vma dest = opd_entry_value (symbol->section,
2324 symbol->value + reloc_entry->addend,
2325 NULL, NULL);
2326 if (dest != (bfd_vma) -1)
2327 reloc_entry->addend = dest - (symbol->value
2328 + symbol->section->output_section->vma
2329 + symbol->section->output_offset);
2330 }
2331 return bfd_reloc_continue;
2332}
2333
805fc799 2334static bfd_reloc_status_type
4ce794b7
AM
2335ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2336 void *data, asection *input_section,
2337 bfd *output_bfd, char **error_message)
805fc799
AM
2338{
2339 long insn;
04c9666a 2340 enum elf_ppc64_reloc_type r_type;
805fc799
AM
2341 bfd_size_type octets;
2342 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2343 bfd_boolean is_power4 = FALSE;
805fc799
AM
2344
2345 /* If this is a relocatable link (output_bfd test tells us), just
2346 call the generic function. Any adjustment will be done at final
2347 link time. */
5bd4f169 2348 if (output_bfd != NULL)
cedb70c5 2349 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2350 input_section, output_bfd, error_message);
2351
2352 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2353 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2354 insn &= ~(0x01 << 21);
4ce794b7 2355 r_type = reloc_entry->howto->type;
805fc799
AM
2356 if (r_type == R_PPC64_ADDR14_BRTAKEN
2357 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2358 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM
2359
2360 if (is_power4)
5bd4f169 2361 {
805fc799
AM
2362 /* Set 'a' bit. This is 0b00010 in BO field for branch
2363 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2364 for branch on CTR insns (BO == 1a00t or 1a01t). */
2365 if ((insn & (0x14 << 21)) == (0x04 << 21))
2366 insn |= 0x02 << 21;
2367 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2368 insn |= 0x08 << 21;
2369 else
2441e016 2370 goto out;
5bd4f169 2371 }
805fc799
AM
2372 else
2373 {
2374 bfd_vma target = 0;
2375 bfd_vma from;
5bd4f169 2376
805fc799
AM
2377 if (!bfd_is_com_section (symbol->section))
2378 target = symbol->value;
2379 target += symbol->section->output_section->vma;
2380 target += symbol->section->output_offset;
2381 target += reloc_entry->addend;
5bd4f169 2382
805fc799
AM
2383 from = (reloc_entry->address
2384 + input_section->output_offset
2385 + input_section->output_section->vma);
5bd4f169 2386
805fc799
AM
2387 /* Invert 'y' bit if not the default. */
2388 if ((bfd_signed_vma) (target - from) < 0)
2389 insn ^= 0x01 << 21;
2390 }
4ce794b7 2391 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2441e016
AM
2392 out:
2393 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2394 input_section, output_bfd, error_message);
805fc799 2395}
5bd4f169 2396
805fc799 2397static bfd_reloc_status_type
4ce794b7
AM
2398ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2399 void *data, asection *input_section,
2400 bfd *output_bfd, char **error_message)
805fc799
AM
2401{
2402 /* If this is a relocatable link (output_bfd test tells us), just
2403 call the generic function. Any adjustment will be done at final
2404 link time. */
2405 if (output_bfd != NULL)
cedb70c5 2406 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2407 input_section, output_bfd, error_message);
5bd4f169 2408
805fc799
AM
2409 /* Subtract the symbol section base address. */
2410 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM
2411 return bfd_reloc_continue;
2412}
2413
805fc799 2414static bfd_reloc_status_type
4ce794b7
AM
2415ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2416 void *data, asection *input_section,
2417 bfd *output_bfd, char **error_message)
805fc799
AM
2418{
2419 /* If this is a relocatable link (output_bfd test tells us), just
2420 call the generic function. Any adjustment will be done at final
2421 link time. */
2422 if (output_bfd != NULL)
cedb70c5 2423 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2424 input_section, output_bfd, error_message);
2425
2426 /* Subtract the symbol section base address. */
2427 reloc_entry->addend -= symbol->section->output_section->vma;
2428
2429 /* Adjust the addend for sign extension of the low 16 bits. */
2430 reloc_entry->addend += 0x8000;
2431 return bfd_reloc_continue;
2432}
2433
2434static bfd_reloc_status_type
4ce794b7
AM
2435ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2436 void *data, asection *input_section,
2437 bfd *output_bfd, char **error_message)
805fc799
AM
2438{
2439 bfd_vma TOCstart;
2440
2441 /* If this is a relocatable link (output_bfd test tells us), just
2442 call the generic function. Any adjustment will be done at final
2443 link time. */
2444 if (output_bfd != NULL)
cedb70c5 2445 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2446 input_section, output_bfd, error_message);
2447
2448 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2449 if (TOCstart == 0)
2450 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2451
2452 /* Subtract the TOC base address. */
2453 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2454 return bfd_reloc_continue;
2455}
2456
2457static bfd_reloc_status_type
4ce794b7
AM
2458ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2459 void *data, asection *input_section,
2460 bfd *output_bfd, char **error_message)
805fc799
AM
2461{
2462 bfd_vma TOCstart;
2463
2464 /* If this is a relocatable link (output_bfd test tells us), just
2465 call the generic function. Any adjustment will be done at final
2466 link time. */
2467 if (output_bfd != NULL)
cedb70c5 2468 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2469 input_section, output_bfd, error_message);
2470
2471 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2472 if (TOCstart == 0)
2473 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2474
2475 /* Subtract the TOC base address. */
2476 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2477
2478 /* Adjust the addend for sign extension of the low 16 bits. */
2479 reloc_entry->addend += 0x8000;
2480 return bfd_reloc_continue;
2481}
2482
2483static bfd_reloc_status_type
4ce794b7
AM
2484ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2485 void *data, asection *input_section,
2486 bfd *output_bfd, char **error_message)
805fc799
AM
2487{
2488 bfd_vma TOCstart;
2489 bfd_size_type octets;
2490
2491 /* If this is a relocatable link (output_bfd test tells us), just
2492 call the generic function. Any adjustment will be done at final
2493 link time. */
2494 if (output_bfd != NULL)
cedb70c5 2495 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2496 input_section, output_bfd, error_message);
2497
2498 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2499 if (TOCstart == 0)
2500 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2501
2502 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2503 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2504 return bfd_reloc_ok;
2505}
2506
2507static bfd_reloc_status_type
4ce794b7
AM
2508ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2509 void *data, asection *input_section,
2510 bfd *output_bfd, char **error_message)
805fc799
AM
2511{
2512 /* If this is a relocatable link (output_bfd test tells us), just
2513 call the generic function. Any adjustment will be done at final
2514 link time. */
2515 if (output_bfd != NULL)
cedb70c5 2516 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2517 input_section, output_bfd, error_message);
2518
2519 if (error_message != NULL)
2520 {
2521 static char buf[60];
2522 sprintf (buf, "generic linker can't handle %s",
2523 reloc_entry->howto->name);
2524 *error_message = buf;
2525 }
2526 return bfd_reloc_dangerous;
2527}
2528
927be08e
AM
2529/* Track GOT entries needed for a given symbol. We might need more
2530 than one got entry per symbol. */
2531struct got_entry
2532{
2533 struct got_entry *next;
2534
2535 /* The symbol addend that we'll be placing in the GOT. */
2536 bfd_vma addend;
2537
2538 /* Unlike other ELF targets, we use separate GOT entries for the same
2539 symbol referenced from different input files. This is to support
2540 automatic multiple TOC/GOT sections, where the TOC base can vary
2541 from one input file to another. After partitioning into TOC groups
2542 we merge entries within the group.
2543
2544 Point to the BFD owning this GOT entry. */
2545 bfd *owner;
2546
2547 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2548 TLS_TPREL or TLS_DTPREL for tls entries. */
f961d9dd 2549 unsigned char tls_type;
927be08e
AM
2550
2551 /* Non-zero if got.ent points to real entry. */
f961d9dd 2552 unsigned char is_indirect;
927be08e
AM
2553
2554 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2555 union
2556 {
2557 bfd_signed_vma refcount;
2558 bfd_vma offset;
2559 struct got_entry *ent;
2560 } got;
2561};
2562
2563/* The same for PLT. */
2564struct plt_entry
2565{
2566 struct plt_entry *next;
2567
2568 bfd_vma addend;
2569
2570 union
2571 {
2572 bfd_signed_vma refcount;
2573 bfd_vma offset;
2574 } plt;
2575};
2576
e717da7e
AM
2577struct ppc64_elf_obj_tdata
2578{
2579 struct elf_obj_tdata elf;
2580
2581 /* Shortcuts to dynamic linker sections. */
2582 asection *got;
2583 asection *relgot;
2584
b3fac117
AM
2585 /* Used during garbage collection. We attach global symbols defined
2586 on removed .opd entries to this section so that the sym is removed. */
2587 asection *deleted_section;
81688140 2588
927be08e 2589 /* TLS local dynamic got entry handling. Support for multiple GOT
e717da7e 2590 sections means we potentially need one of these for each input bfd. */
927be08e 2591 struct got_entry tlsld_got;
8860955f
AM
2592
2593 /* A copy of relocs before they are modified for --emit-relocs. */
2594 Elf_Internal_Rela *opd_relocs;
d77c8a4b
AM
2595
2596 /* Nonzero if this bfd has small toc/got relocs, ie. that expect
2597 the reloc to be in the range -32768 to 32767. */
2598 unsigned int has_small_toc_reloc;
e717da7e
AM
2599};
2600
2601#define ppc64_elf_tdata(bfd) \
2602 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2603
2604#define ppc64_tlsld_got(bfd) \
2605 (&ppc64_elf_tdata (bfd)->tlsld_got)
2606
0c8d6e5c
AM
2607#define is_ppc64_elf(bfd) \
2608 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
4dfe6ac6 2609 && elf_object_id (bfd) == PPC64_ELF_DATA)
0c8d6e5c 2610
e717da7e
AM
2611/* Override the generic function because we store some extras. */
2612
2613static bfd_boolean
2614ppc64_elf_mkobject (bfd *abfd)
2615{
0ffa91dd 2616 return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata),
4dfe6ac6 2617 PPC64_ELF_DATA);
e717da7e
AM
2618}
2619
feee612b
AM
2620/* Fix bad default arch selected for a 64 bit input bfd when the
2621 default is 32 bit. */
2622
b34976b6 2623static bfd_boolean
4ce794b7 2624ppc64_elf_object_p (bfd *abfd)
feee612b
AM
2625{
2626 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2627 {
2628 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2629
2630 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2631 {
2632 /* Relies on arch after 32 bit default being 64 bit default. */
2633 abfd->arch_info = abfd->arch_info->next;
2634 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2635 }
2636 }
b34976b6 2637 return TRUE;
feee612b
AM
2638}
2639
d37c89e5
AM
2640/* Support for core dump NOTE sections. */
2641
2642static bfd_boolean
2643ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2644{
eea6121a 2645 size_t offset, size;
d37c89e5
AM
2646
2647 if (note->descsz != 504)
2648 return FALSE;
2649
2650 /* pr_cursig */
2651 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2652
2653 /* pr_pid */
2654 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2655
2656 /* pr_reg */
2657 offset = 112;
eea6121a 2658 size = 384;
d37c89e5
AM
2659
2660 /* Make a ".reg/999" section. */
2661 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2662 size, note->descpos + offset);
d37c89e5
AM
2663}
2664
2665static bfd_boolean
2666ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2667{
2668 if (note->descsz != 136)
2669 return FALSE;
2670
2671 elf_tdata (abfd)->core_program
2672 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2673 elf_tdata (abfd)->core_command
2674 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2675
2676 return TRUE;
2677}
2678
183e98be
AM
2679static char *
2680ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type,
2681 ...)
2682{
2683 switch (note_type)
2684 {
2685 default:
2686 return NULL;
2687
2688 case NT_PRPSINFO:
2689 {
2690 char data[136];
2691 va_list ap;
2692
2693 va_start (ap, note_type);
2694 memset (data, 0, 40);
2695 strncpy (data + 40, va_arg (ap, const char *), 16);
2696 strncpy (data + 56, va_arg (ap, const char *), 80);
2697 va_end (ap);
2698 return elfcore_write_note (abfd, buf, bufsiz,
2699 "CORE", note_type, data, sizeof (data));
2700 }
2701
2702 case NT_PRSTATUS:
2703 {
2704 char data[504];
2705 va_list ap;
2706 long pid;
2707 int cursig;
2708 const void *greg;
2709
2710 va_start (ap, note_type);
2711 memset (data, 0, 112);
2712 pid = va_arg (ap, long);
2713 bfd_put_32 (abfd, pid, data + 32);
2714 cursig = va_arg (ap, int);
2715 bfd_put_16 (abfd, cursig, data + 12);
2716 greg = va_arg (ap, const void *);
2717 memcpy (data + 112, greg, 384);
2718 memset (data + 496, 0, 8);
2719 va_end (ap);
2720 return elfcore_write_note (abfd, buf, bufsiz,
2721 "CORE", note_type, data, sizeof (data));
2722 }
2723 }
2724}
2725
5bd4f169
AM
2726/* Merge backend specific data from an object file to the output
2727 object file when linking. */
2f6d9989 2728
b34976b6 2729static bfd_boolean
4ce794b7 2730ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2731{
5bd4f169
AM
2732 /* Check if we have the same endianess. */
2733 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2734 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM
2735 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2736 {
2737 const char *msg;
2738
2739 if (bfd_big_endian (ibfd))
d003868e 2740 msg = _("%B: compiled for a big endian system "
4ce794b7 2741 "and target is little endian");
5bd4f169 2742 else
d003868e 2743 msg = _("%B: compiled for a little endian system "
4ce794b7 2744 "and target is big endian");
5bd4f169 2745
d003868e 2746 (*_bfd_error_handler) (msg, ibfd);
5bd4f169
AM
2747
2748 bfd_set_error (bfd_error_wrong_format);
b34976b6 2749 return FALSE;
5bd4f169
AM
2750 }
2751
b34976b6 2752 return TRUE;
5bd4f169 2753}
f0abc2a1 2754
5d35169e
AM
2755/* Add extra PPC sections. */
2756
b35d266b 2757static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
7f4d3958 2758{
0112cd26
NC
2759 { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 },
2760 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2761 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2762 { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2763 { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2764 { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2765 { NULL, 0, 0, 0, 0 }
5d35169e
AM
2766};
2767
7c8fe5c4
AM
2768enum _ppc64_sec_type {
2769 sec_normal = 0,
2770 sec_opd = 1,
2771 sec_toc = 2
2772};
2773
f0abc2a1
AM
2774struct _ppc64_elf_section_data
2775{
2776 struct bfd_elf_section_data elf;
411e1bfb 2777
f0abc2a1
AM
2778 union
2779 {
74f0fb50
AM
2780 /* An array with one entry for each opd function descriptor. */
2781 struct _opd_sec_data
2782 {
2783 /* Points to the function code section for local opd entries. */
2784 asection **func_sec;
2785
2786 /* After editing .opd, adjust references to opd local syms. */
2787 long *adjust;
2788 } opd;
7c8fe5c4 2789
3a71aa26
AM
2790 /* An array for toc sections, indexed by offset/8. */
2791 struct _toc_sec_data
2792 {
2793 /* Specifies the relocation symbol index used at a given toc offset. */
2794 unsigned *symndx;
2795
2796 /* And the relocation addend. */
2797 bfd_vma *add;
2798 } toc;
7c8fe5c4
AM
2799 } u;
2800
2801 enum _ppc64_sec_type sec_type:2;
411e1bfb 2802
7c8fe5c4
AM
2803 /* Flag set when small branches are detected. Used to
2804 select suitable defaults for the stub group size. */
2805 unsigned int has_14bit_branch:1;
f0abc2a1
AM
2806};
2807
2808#define ppc64_elf_section_data(sec) \
411e1bfb 2809 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM
2810
2811static bfd_boolean
4ce794b7 2812ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1 2813{
f592407e
AM
2814 if (!sec->used_by_bfd)
2815 {
2816 struct _ppc64_elf_section_data *sdata;
2817 bfd_size_type amt = sizeof (*sdata);
f0abc2a1 2818
f592407e
AM
2819 sdata = bfd_zalloc (abfd, amt);
2820 if (sdata == NULL)
2821 return FALSE;
2822 sec->used_by_bfd = sdata;
2823 }
f0abc2a1
AM
2824
2825 return _bfd_elf_new_section_hook (abfd, sec);
2826}
4025353c 2827
74f0fb50 2828static struct _opd_sec_data *
4025353c
AM
2829get_opd_info (asection * sec)
2830{
2831 if (sec != NULL
2832 && ppc64_elf_section_data (sec) != NULL
7c8fe5c4 2833 && ppc64_elf_section_data (sec)->sec_type == sec_opd)
74f0fb50 2834 return &ppc64_elf_section_data (sec)->u.opd;
4025353c
AM
2835 return NULL;
2836}
90e3cdf2
JJ
2837\f
2838/* Parameters for the qsort hook. */
90e3cdf2
JJ
2839static bfd_boolean synthetic_relocatable;
2840
699733f6 2841/* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
90e3cdf2
JJ
2842
2843static int
2844compare_symbols (const void *ap, const void *bp)
2845{
2846 const asymbol *a = * (const asymbol **) ap;
2847 const asymbol *b = * (const asymbol **) bp;
2848
699733f6
AM
2849 /* Section symbols first. */
2850 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
90e3cdf2 2851 return -1;
699733f6 2852 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
90e3cdf2
JJ
2853 return 1;
2854
699733f6 2855 /* then .opd symbols. */
ffcfec52
AM
2856 if (strcmp (a->section->name, ".opd") == 0
2857 && strcmp (b->section->name, ".opd") != 0)
90e3cdf2 2858 return -1;
ffcfec52
AM
2859 if (strcmp (a->section->name, ".opd") != 0
2860 && strcmp (b->section->name, ".opd") == 0)
90e3cdf2
JJ
2861 return 1;
2862
699733f6 2863 /* then other code symbols. */
90e3cdf2
JJ
2864 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2865 == (SEC_CODE | SEC_ALLOC)
2866 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2867 != (SEC_CODE | SEC_ALLOC))
2868 return -1;
2869
2870 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2871 != (SEC_CODE | SEC_ALLOC)
2872 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2873 == (SEC_CODE | SEC_ALLOC))
2874 return 1;
2875
2876 if (synthetic_relocatable)
2877 {
2878 if (a->section->id < b->section->id)
2879 return -1;
2880
2881 if (a->section->id > b->section->id)
2882 return 1;
2883 }
2884
2885 if (a->value + a->section->vma < b->value + b->section->vma)
2886 return -1;
2887
2888 if (a->value + a->section->vma > b->value + b->section->vma)
2889 return 1;
2890
4d35a0aa
AM
2891 /* For syms with the same value, prefer strong dynamic global function
2892 syms over other syms. */
2893 if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0)
2894 return -1;
2895
2896 if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0)
2897 return 1;
2898
2899 if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0)
2900 return -1;
2901
2902 if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0)
2903 return 1;
2904
2905 if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0)
2906 return -1;
2907
2908 if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0)
2909 return 1;
2910
2911 if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0)
2912 return -1;
2913
2914 if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0)
2915 return 1;
2916
90e3cdf2
JJ
2917 return 0;
2918}
2919
699733f6 2920/* Search SYMS for a symbol of the given VALUE. */
90e3cdf2 2921
699733f6
AM
2922static asymbol *
2923sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
90e3cdf2 2924{
699733f6 2925 long mid;
90e3cdf2 2926
699733f6
AM
2927 if (id == -1)
2928 {
2929 while (lo < hi)
2930 {
2931 mid = (lo + hi) >> 1;
2932 if (syms[mid]->value + syms[mid]->section->vma < value)
2933 lo = mid + 1;
2934 else if (syms[mid]->value + syms[mid]->section->vma > value)
2935 hi = mid;
2936 else
2937 return syms[mid];
2938 }
2939 }
2940 else
2941 {
2942 while (lo < hi)
2943 {
2944 mid = (lo + hi) >> 1;
2945 if (syms[mid]->section->id < id)
2946 lo = mid + 1;
2947 else if (syms[mid]->section->id > id)
2948 hi = mid;
2949 else if (syms[mid]->value < value)
2950 lo = mid + 1;
2951 else if (syms[mid]->value > value)
2952 hi = mid;
2953 else
2954 return syms[mid];
2955 }
2956 }
2957 return NULL;
90e3cdf2
JJ
2958}
2959
468392fb
AM
2960static bfd_boolean
2961section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
2962{
2963 bfd_vma vma = *(bfd_vma *) ptr;
2964 return ((section->flags & SEC_ALLOC) != 0
2965 && section->vma <= vma
2966 && vma < section->vma + section->size);
2967}
2968
699733f6 2969/* Create synthetic symbols, effectively restoring "dot-symbol" function
468392fb 2970 entry syms. Also generate @plt symbols for the glink branch table. */
90e3cdf2
JJ
2971
2972static long
a7535cf3
AM
2973ppc64_elf_get_synthetic_symtab (bfd *abfd,
2974 long static_count, asymbol **static_syms,
2975 long dyn_count, asymbol **dyn_syms,
c9727e01 2976 asymbol **ret)
90e3cdf2
JJ
2977{
2978 asymbol *s;
699733f6
AM
2979 long i;
2980 long count;
90e3cdf2 2981 char *names;
a7535cf3 2982 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
699733f6 2983 asection *opd;
90e3cdf2 2984 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
a7535cf3 2985 asymbol **syms;
90e3cdf2
JJ
2986
2987 *ret = NULL;
2988
2989 opd = bfd_get_section_by_name (abfd, ".opd");
2990 if (opd == NULL)
2991 return 0;
2992
a7535cf3 2993 symcount = static_count;
c9727e01 2994 if (!relocatable)
a7535cf3 2995 symcount += dyn_count;
90e3cdf2 2996 if (symcount == 0)
c9727e01 2997 return 0;
90e3cdf2 2998
a7535cf3
AM
2999 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
3000 if (syms == NULL)
7356fed5 3001 return -1;
a7535cf3
AM
3002
3003 if (!relocatable && static_count != 0 && dyn_count != 0)
3004 {
3005 /* Use both symbol tables. */
3006 memcpy (syms, static_syms, static_count * sizeof (*syms));
3007 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
3008 }
3009 else if (!relocatable && static_count == 0)
3010 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
3011 else
3012 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
3013
90e3cdf2 3014 synthetic_relocatable = relocatable;
595da8c5 3015 qsort (syms, symcount, sizeof (*syms), compare_symbols);
90e3cdf2 3016
c9727e01
AM
3017 if (!relocatable && symcount > 1)
3018 {
3019 long j;
3020 /* Trim duplicate syms, since we may have merged the normal and
3021 dynamic symbols. Actually, we only care about syms that have
3b36f7e6 3022 different values, so trim any with the same value. */
c9727e01
AM
3023 for (i = 1, j = 1; i < symcount; ++i)
3024 if (syms[i - 1]->value + syms[i - 1]->section->vma
3025 != syms[i]->value + syms[i]->section->vma)
3026 syms[j++] = syms[i];
3027 symcount = j;
3028 }
3029
699733f6 3030 i = 0;
ffcfec52 3031 if (strcmp (syms[i]->section->name, ".opd") == 0)
699733f6
AM
3032 ++i;
3033 codesecsym = i;
90e3cdf2 3034
699733f6
AM
3035 for (; i < symcount; ++i)
3036 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3037 != (SEC_CODE | SEC_ALLOC))
3038 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
3039 break;
3040 codesecsymend = i;
90e3cdf2 3041
699733f6
AM
3042 for (; i < symcount; ++i)
3043 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
3044 break;
3045 secsymend = i;
90e3cdf2 3046
699733f6 3047 for (; i < symcount; ++i)
ffcfec52 3048 if (strcmp (syms[i]->section->name, ".opd") != 0)
699733f6
AM
3049 break;
3050 opdsymend = i;
90e3cdf2 3051
699733f6
AM
3052 for (; i < symcount; ++i)
3053 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
3054 != (SEC_CODE | SEC_ALLOC))
3055 break;
3056 symcount = i;
3057
c9727e01 3058 count = 0;
90e3cdf2 3059
699733f6 3060 if (relocatable)
90e3cdf2 3061 {
699733f6
AM
3062 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
3063 arelent *r;
3064 size_t size;
3065 long relcount;
90e3cdf2 3066
468392fb
AM
3067 if (opdsymend == secsymend)
3068 goto done;
3069
699733f6 3070 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
90e3cdf2 3071 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
7356fed5 3072 if (relcount == 0)
c9727e01 3073 goto done;
90e3cdf2 3074
7356fed5
AM
3075 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
3076 {
3077 count = -1;
3078 goto done;
3079 }
3080
699733f6 3081 size = 0;
595da8c5 3082 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
699733f6
AM
3083 {
3084 asymbol *sym;
90e3cdf2 3085
595da8c5 3086 while (r < opd->relocation + relcount
699733f6
AM
3087 && r->address < syms[i]->value + opd->vma)
3088 ++r;
90e3cdf2 3089
595da8c5 3090 if (r == opd->relocation + relcount)
699733f6 3091 break;
90e3cdf2 3092
699733f6
AM
3093 if (r->address != syms[i]->value + opd->vma)
3094 continue;
90e3cdf2 3095
699733f6
AM
3096 if (r->howto->type != R_PPC64_ADDR64)
3097 continue;
90e3cdf2 3098
699733f6
AM
3099 sym = *r->sym_ptr_ptr;
3100 if (!sym_exists_at (syms, opdsymend, symcount,
3101 sym->section->id, sym->value + r->addend))
3102 {
3103 ++count;
3104 size += sizeof (asymbol);
3105 size += strlen (syms[i]->name) + 2;
3106 }
3107 }
90e3cdf2 3108
699733f6
AM
3109 s = *ret = bfd_malloc (size);
3110 if (s == NULL)
3111 {
7356fed5 3112 count = -1;
c9727e01 3113 goto done;
699733f6 3114 }
90e3cdf2 3115
699733f6 3116 names = (char *) (s + count);
90e3cdf2 3117
595da8c5 3118 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
90e3cdf2 3119 {
699733f6 3120 asymbol *sym;
90e3cdf2 3121
595da8c5 3122 while (r < opd->relocation + relcount
699733f6
AM
3123 && r->address < syms[i]->value + opd->vma)
3124 ++r;
90e3cdf2 3125
595da8c5 3126 if (r == opd->relocation + relcount)
699733f6
AM
3127 break;
3128
3129 if (r->address != syms[i]->value + opd->vma)
3130 continue;
3131
3132 if (r->howto->type != R_PPC64_ADDR64)
3133 continue;
90e3cdf2 3134
699733f6
AM
3135 sym = *r->sym_ptr_ptr;
3136 if (!sym_exists_at (syms, opdsymend, symcount,
3137 sym->section->id, sym->value + r->addend))
3138 {
3139 size_t len;
3140
3141 *s = *syms[i];
6ba2a415 3142 s->flags |= BSF_SYNTHETIC;
699733f6
AM
3143 s->section = sym->section;
3144 s->value = sym->value + r->addend;
3145 s->name = names;
3146 *names++ = '.';
3147 len = strlen (syms[i]->name);
3148 memcpy (names, syms[i]->name, len + 1);
3149 names += len + 1;
6f610d07
UW
3150 /* Have udata.p point back to the original symbol this
3151 synthetic symbol was derived from. */
3152 s->udata.p = syms[i];
699733f6
AM
3153 s++;
3154 }
3155 }
3156 }
3157 else
90e3cdf2 3158 {
468392fb 3159 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
699733f6
AM
3160 bfd_byte *contents;
3161 size_t size;
468392fb
AM
3162 long plt_count = 0;
3163 bfd_vma glink_vma = 0, resolv_vma = 0;
3164 asection *dynamic, *glink = NULL, *relplt = NULL;
3165 arelent *p;
90e3cdf2 3166
699733f6
AM
3167 if (!bfd_malloc_and_get_section (abfd, opd, &contents))
3168 {
3169 if (contents)
c9727e01
AM
3170 {
3171 free_contents_and_exit:
3172 free (contents);
3173 }
7356fed5 3174 count = -1;
c9727e01 3175 goto done;
699733f6 3176 }
90e3cdf2 3177
699733f6
AM
3178 size = 0;
3179 for (i = secsymend; i < opdsymend; ++i)
3180 {
3181 bfd_vma ent;
90e3cdf2 3182
5ef11c02
AM
3183 /* Ignore bogus symbols. */
3184 if (syms[i]->value > opd->size - 8)
3185 continue;
3186
699733f6
AM
3187 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3188 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
3189 {
3190 ++count;
3191 size += sizeof (asymbol);
3192 size += strlen (syms[i]->name) + 2;
3193 }
3194 }
90e3cdf2 3195
468392fb 3196 /* Get start of .glink stubs from DT_PPC64_GLINK. */
066ee829
AM
3197 if (dyn_count != 0
3198 && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL)
468392fb
AM
3199 {
3200 bfd_byte *dynbuf, *extdyn, *extdynend;
3201 size_t extdynsize;
3202 void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
3203
3204 if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
3205 goto free_contents_and_exit;
3206
3207 extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
3208 swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
3209
3210 extdyn = dynbuf;
3211 extdynend = extdyn + dynamic->size;
3212 for (; extdyn < extdynend; extdyn += extdynsize)
3213 {
3214 Elf_Internal_Dyn dyn;
3215 (*swap_dyn_in) (abfd, extdyn, &dyn);
3216
3217 if (dyn.d_tag == DT_NULL)
3218 break;
3219
3220 if (dyn.d_tag == DT_PPC64_GLINK)
3221 {
3222 /* The first glink stub starts at offset 32; see comment in
3223 ppc64_elf_finish_dynamic_sections. */
3224 glink_vma = dyn.d_un.d_val + 32;
3225 /* The .glink section usually does not survive the final
3226 link; search for the section (usually .text) where the
3227 glink stubs now reside. */
3228 glink = bfd_sections_find_if (abfd, section_covers_vma,
3229 &glink_vma);
3230 break;
3231 }
3232 }
3233
3234 free (dynbuf);
3235 }
3236
3237 if (glink != NULL)
3238 {
3239 /* Determine __glink trampoline by reading the relative branch
3240 from the first glink stub. */
3241 bfd_byte buf[4];
3242 if (bfd_get_section_contents (abfd, glink, buf,
3243 glink_vma + 4 - glink->vma, 4))
3244 {
3245 unsigned int insn = bfd_get_32 (abfd, buf);
3246 insn ^= B_DOT;
3247 if ((insn & ~0x3fffffc) == 0)
3248 resolv_vma = glink_vma + 4 + (insn ^ 0x2000000) - 0x2000000;
3249 }
3250
3251 if (resolv_vma)
3252 size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
468392fb 3253
066ee829
AM
3254 relplt = bfd_get_section_by_name (abfd, ".rela.plt");
3255 if (relplt != NULL)
3256 {
3257 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
3258 if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE))
3259 goto free_contents_and_exit;
468392fb 3260
066ee829
AM
3261 plt_count = relplt->size / sizeof (Elf64_External_Rela);
3262 size += plt_count * sizeof (asymbol);
468392fb 3263
066ee829
AM
3264 p = relplt->relocation;
3265 for (i = 0; i < plt_count; i++, p++)
e054468f
AM
3266 {
3267 size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
3268 if (p->addend != 0)
3269 size += sizeof ("+0x") - 1 + 16;
3270 }
066ee829 3271 }
468392fb
AM
3272 }
3273
699733f6
AM
3274 s = *ret = bfd_malloc (size);
3275 if (s == NULL)
7356fed5 3276 goto free_contents_and_exit;
90e3cdf2 3277
468392fb 3278 names = (char *) (s + count + plt_count + (resolv_vma != 0));
90e3cdf2 3279
699733f6 3280 for (i = secsymend; i < opdsymend; ++i)
90e3cdf2 3281 {
699733f6 3282 bfd_vma ent;
90e3cdf2 3283
5ef11c02
AM
3284 if (syms[i]->value > opd->size - 8)
3285 continue;
3286
699733f6
AM
3287 ent = bfd_get_64 (abfd, contents + syms[i]->value);
3288 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
90e3cdf2 3289 {
c9727e01 3290 long lo, hi;
699733f6 3291 size_t len;
c9727e01 3292 asection *sec = abfd->sections;
90e3cdf2 3293
699733f6
AM
3294 *s = *syms[i];
3295 lo = codesecsym;
3296 hi = codesecsymend;
3297 while (lo < hi)
3298 {
c9727e01 3299 long mid = (lo + hi) >> 1;
699733f6
AM
3300 if (syms[mid]->section->vma < ent)
3301 lo = mid + 1;
3302 else if (syms[mid]->section->vma > ent)
3303 hi = mid;
3304 else
c9727e01
AM
3305 {
3306 sec = syms[mid]->section;
3307 break;
3308 }
699733f6
AM
3309 }
3310
c9727e01 3311 if (lo >= hi && lo > codesecsym)
699733f6 3312 sec = syms[lo - 1]->section;
699733f6
AM
3313
3314 for (; sec != NULL; sec = sec->next)
3315 {
3316 if (sec->vma > ent)
3317 break;
3318 if ((sec->flags & SEC_ALLOC) == 0
3319 || (sec->flags & SEC_LOAD) == 0)
3320 break;
3321 if ((sec->flags & SEC_CODE) != 0)
3322 s->section = sec;
3323 }
6ba2a415 3324 s->flags |= BSF_SYNTHETIC;
699733f6
AM
3325 s->value = ent - s->section->vma;
3326 s->name = names;
3327 *names++ = '.';
3328 len = strlen (syms[i]->name);
3329 memcpy (names, syms[i]->name, len + 1);
3330 names += len + 1;
6f610d07
UW
3331 /* Have udata.p point back to the original symbol this
3332 synthetic symbol was derived from. */
3333 s->udata.p = syms[i];
699733f6 3334 s++;
90e3cdf2 3335 }
90e3cdf2 3336 }
699733f6 3337 free (contents);
468392fb
AM
3338
3339 if (glink != NULL && relplt != NULL)
3340 {
3341 if (resolv_vma)
3342 {
3343 /* Add a symbol for the main glink trampoline. */
86a4952b 3344 memset (s, 0, sizeof *s);
468392fb 3345 s->the_bfd = abfd;
6ba2a415 3346 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
468392fb
AM
3347 s->section = glink;
3348 s->value = resolv_vma - glink->vma;
3349 s->name = names;
3350 memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
3351 names += sizeof ("__glink_PLTresolve");
3352 s++;
3353 count++;
3354 }
3355
3356 /* FIXME: It would be very much nicer to put sym@plt on the
3357 stub rather than on the glink branch table entry. The
3358 objdump disassembler would then use a sensible symbol
3359 name on plt calls. The difficulty in doing so is
3360 a) finding the stubs, and,
3361 b) matching stubs against plt entries, and,
3362 c) there can be multiple stubs for a given plt entry.
3363
3364 Solving (a) could be done by code scanning, but older
3365 ppc64 binaries used different stubs to current code.
3366 (b) is the tricky one since you need to known the toc
3367 pointer for at least one function that uses a pic stub to
3368 be able to calculate the plt address referenced.
3369 (c) means gdb would need to set multiple breakpoints (or
3370 find the glink branch itself) when setting breakpoints
3371 for pending shared library loads. */
3372 p = relplt->relocation;
3373 for (i = 0; i < plt_count; i++, p++)
3374 {
3375 size_t len;
3376
3377 *s = **p->sym_ptr_ptr;
3378 /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since
3379 we are defining a symbol, ensure one of them is set. */
3380 if ((s->flags & BSF_LOCAL) == 0)
3381 s->flags |= BSF_GLOBAL;
6ba2a415 3382 s->flags |= BSF_SYNTHETIC;
468392fb
AM
3383 s->section = glink;
3384 s->value = glink_vma - glink->vma;
3385 s->name = names;
3386 s->udata.p = NULL;
3387 len = strlen ((*p->sym_ptr_ptr)->name);
3388 memcpy (names, (*p->sym_ptr_ptr)->name, len);
3389 names += len;
e054468f
AM
3390 if (p->addend != 0)
3391 {
3392 memcpy (names, "+0x", sizeof ("+0x") - 1);
3393 names += sizeof ("+0x") - 1;
3394 bfd_sprintf_vma (abfd, names, p->addend);
3395 names += strlen (names);
3396 }
468392fb
AM
3397 memcpy (names, "@plt", sizeof ("@plt"));
3398 names += sizeof ("@plt");
3399 s++;
3400 glink_vma += 8;
3401 if (i >= 0x8000)
3402 glink_vma += 4;
3403 }
3404 count += plt_count;
3405 }
90e3cdf2
JJ
3406 }
3407
c9727e01 3408 done:
a7535cf3 3409 free (syms);
90e3cdf2
JJ
3410 return count;
3411}
5bd4f169 3412\f
65f38f15
AM
3413/* The following functions are specific to the ELF linker, while
3414 functions above are used generally. Those named ppc64_elf_* are
3415 called by the main ELF linker code. They appear in this file more
3416 or less in the order in which they are called. eg.
3417 ppc64_elf_check_relocs is called early in the link process,
3418 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM
3419 called.
3420
3421 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
3422 functions have both a function code symbol and a function descriptor
3423 symbol. A call to foo in a relocatable object file looks like:
3424
3425 . .text
3426 . x:
3427 . bl .foo
3428 . nop
3429
3430 The function definition in another object file might be:
3431
3432 . .section .opd
3433 . foo: .quad .foo
3434 . .quad .TOC.@tocbase
3435 . .quad 0
3436 .
3437 . .text
3438 . .foo: blr
3439
3440 When the linker resolves the call during a static link, the branch
3441 unsurprisingly just goes to .foo and the .opd information is unused.
3442 If the function definition is in a shared library, things are a little
3443 different: The call goes via a plt call stub, the opd information gets
3444 copied to the plt, and the linker patches the nop.
3445
3446 . x:
3447 . bl .foo_stub
3448 . ld 2,40(1)
3449 .
3450 .
3451 . .foo_stub:
3452 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 3453 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM
3454 . std 2,40(1) # this is the general idea
3455 . ld 11,0(12)
3456 . ld 2,8(12)
3457 . mtctr 11
3458 . ld 11,16(12)
3459 . bctr
3460 .
3461 . .section .plt
3462 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
3463
3464 The "reloc ()" notation is supposed to indicate that the linker emits
3465 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
3466 copying.
3467
3468 What are the difficulties here? Well, firstly, the relocations
3469 examined by the linker in check_relocs are against the function code
3470 sym .foo, while the dynamic relocation in the plt is emitted against
3471 the function descriptor symbol, foo. Somewhere along the line, we need
3472 to carefully copy dynamic link information from one symbol to the other.
3473 Secondly, the generic part of the elf linker will make .foo a dynamic
3474 symbol as is normal for most other backends. We need foo dynamic
3475 instead, at least for an application final link. However, when
3476 creating a shared library containing foo, we need to have both symbols
3477 dynamic so that references to .foo are satisfied during the early
3478 stages of linking. Otherwise the linker might decide to pull in a
8387904d
AM
3479 definition from some other object, eg. a static library.
3480
3481 Update: As of August 2004, we support a new convention. Function
3482 calls may use the function descriptor symbol, ie. "bl foo". This
3483 behaves exactly as "bl .foo". */
65f38f15
AM
3484
3485/* The linker needs to keep track of the number of relocs that it
3486 decides to copy as dynamic relocs in check_relocs for each symbol.
3487 This is so that it can later discard them if they are found to be
3488 unnecessary. We store the information in a field extending the
3489 regular ELF linker hash table. */
3490
3491struct ppc_dyn_relocs
3492{
3493 struct ppc_dyn_relocs *next;
3494
3495 /* The input section of the reloc. */
3496 asection *sec;
3497
3498 /* Total number of relocs copied for the input section. */
3499 bfd_size_type count;
3500
3501 /* Number of pc-relative relocs copied for the input section. */
3502 bfd_size_type pc_count;
3503};
3504
1d483afe 3505/* Of those relocs that might be copied as dynamic relocs, this function
58ac9f71
AM
3506 selects those that must be copied when linking a shared library,
3507 even when the symbol is local. */
65f38f15 3508
1d483afe
AM
3509static int
3510must_be_dyn_reloc (struct bfd_link_info *info,
3511 enum elf_ppc64_reloc_type r_type)
3512{
3513 switch (r_type)
3514 {
3515 default:
3516 return 1;
3517
3518 case R_PPC64_REL32:
3519 case R_PPC64_REL64:
3520 case R_PPC64_REL30:
3521 return 0;
3522
3523 case R_PPC64_TPREL16:
3524 case R_PPC64_TPREL16_LO:
3525 case R_PPC64_TPREL16_HI:
3526 case R_PPC64_TPREL16_HA:
3527 case R_PPC64_TPREL16_DS:
3528 case R_PPC64_TPREL16_LO_DS:
3529 case R_PPC64_TPREL16_HIGHER:
3530 case R_PPC64_TPREL16_HIGHERA:
3531 case R_PPC64_TPREL16_HIGHEST:
3532 case R_PPC64_TPREL16_HIGHESTA:
3533 case R_PPC64_TPREL64:
3534 return !info->executable;
3535 }
3536}
65f38f15 3537
f4656909
AM
3538/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3539 copying dynamic variables from a shared lib into an app's dynbss
3540 section, and instead use a dynamic relocation to point into the
5d35169e
AM
3541 shared lib. With code that gcc generates, it's vital that this be
3542 enabled; In the PowerPC64 ABI, the address of a function is actually
3543 the address of a function descriptor, which resides in the .opd
3544 section. gcc uses the descriptor directly rather than going via the
3545 GOT as some other ABI's do, which means that initialized function
3546 pointers must reference the descriptor. Thus, a function pointer
3547 initialized to the address of a function in a shared library will
3548 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 3549 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM
3550 presents a problem as a plt entry for that function is also
3551 initialized from the function descriptor symbol and the copy reloc
3552 may not be initialized first. */
a23b6845 3553#define ELIMINATE_COPY_RELOCS 1
f4656909 3554
721956f4
AM
3555/* Section name for stubs is the associated section name plus this
3556 string. */
3557#define STUB_SUFFIX ".stub"
3558
3559/* Linker stubs.
3560 ppc_stub_long_branch:
3561 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3562 destination, but a 24 bit branch in a stub section will reach.
3563 . b dest
3564
3565 ppc_stub_plt_branch:
3566 Similar to the above, but a 24 bit branch in the stub section won't
3567 reach its destination.
87e226ce
AM
3568 . addis %r12,%r2,xxx@toc@ha
3569 . ld %r11,xxx@toc@l(%r12)
721956f4
AM
3570 . mtctr %r11
3571 . bctr
3572
3573 ppc_stub_plt_call:
2c66dc6c
AM
3574 Used to call a function in a shared library. If it so happens that
3575 the plt entry referenced crosses a 64k boundary, then an extra
ac2df442 3576 "addi %r12,%r12,xxx@toc@l" will be inserted before the "mtctr".
87e226ce 3577 . addis %r12,%r2,xxx@toc@ha
721956f4 3578 . std %r2,40(%r1)
87e226ce 3579 . ld %r11,xxx+0@toc@l(%r12)
721956f4 3580 . mtctr %r11
ac2df442 3581 . ld %r2,xxx+8@toc@l(%r12)
87e226ce 3582 . ld %r11,xxx+16@toc@l(%r12)
721956f4 3583 . bctr
ad8e1ba5
AM
3584
3585 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3586 code to adjust the value and save r2 to support multiple toc sections.
3587 A ppc_stub_long_branch with an r2 offset looks like:
3588 . std %r2,40(%r1)
3589 . addis %r2,%r2,off@ha
3590 . addi %r2,%r2,off@l
3591 . b dest
3592
3593 A ppc_stub_plt_branch with an r2 offset looks like:
3594 . std %r2,40(%r1)
3595 . addis %r12,%r2,xxx@toc@ha
3596 . ld %r11,xxx@toc@l(%r12)
3597 . addis %r2,%r2,off@ha
3598 . addi %r2,%r2,off@l
3599 . mtctr %r11
3600 . bctr
ac2df442
AM
3601
3602 In cases where the "addis" instruction would add zero, the "addis" is
3603 omitted and following instructions modified slightly in some cases.
721956f4
AM
3604*/
3605
3606enum ppc_stub_type {
3607 ppc_stub_none,
3608 ppc_stub_long_branch,
ad8e1ba5 3609 ppc_stub_long_branch_r2off,
721956f4 3610 ppc_stub_plt_branch,
ad8e1ba5 3611 ppc_stub_plt_branch_r2off,
721956f4
AM
3612 ppc_stub_plt_call
3613};
3614
3615struct ppc_stub_hash_entry {
3616
3617 /* Base hash table entry structure. */
3618 struct bfd_hash_entry root;
3619
ad8e1ba5
AM
3620 enum ppc_stub_type stub_type;
3621
721956f4
AM
3622 /* The stub section. */
3623 asection *stub_sec;
3624
3625 /* Offset within stub_sec of the beginning of this stub. */
3626 bfd_vma stub_offset;
3627
3628 /* Given the symbol's value and its section we can determine its final
3629 value when building the stubs (so the stub knows where to jump. */
3630 bfd_vma target_value;
3631 asection *target_section;
3632
721956f4
AM
3633 /* The symbol table entry, if any, that this was derived from. */
3634 struct ppc_link_hash_entry *h;
e054468f 3635 struct plt_entry *plt_ent;
721956f4 3636
411e1bfb
AM
3637 /* And the reloc addend that this was derived from. */
3638 bfd_vma addend;
3639
721956f4
AM
3640 /* Where this stub is being called from, or, in the case of combined
3641 stub sections, the first input section in the group. */
3642 asection *id_sec;
3643};
3644
3645struct ppc_branch_hash_entry {
3646
3647 /* Base hash table entry structure. */
3648 struct bfd_hash_entry root;
3649
c456f082 3650 /* Offset within branch lookup table. */
721956f4
AM
3651 unsigned int offset;
3652
3653 /* Generation marker. */
3654 unsigned int iter;
3655};
65f38f15
AM
3656
3657struct ppc_link_hash_entry
3658{
3659 struct elf_link_hash_entry elf;
3660
b3fac117
AM
3661 union {
3662 /* A pointer to the most recently used stub hash entry against this
3663 symbol. */
3664 struct ppc_stub_hash_entry *stub_cache;
3665
3666 /* A pointer to the next symbol starting with a '.' */
3667 struct ppc_link_hash_entry *next_dot_sym;
3668 } u;
721956f4 3669
65f38f15
AM
3670 /* Track dynamic relocs copied for this symbol. */
3671 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 3672
721956f4 3673 /* Link between function code and descriptor symbols. */
34814b9f 3674 struct ppc_link_hash_entry *oh;
721956f4 3675
e86ce104
AM
3676 /* Flag function code and descriptor symbols. */
3677 unsigned int is_func:1;
3678 unsigned int is_func_descriptor:1;
908b32fc 3679 unsigned int fake:1;
411e1bfb 3680
c5614fa4
AM
3681 /* Whether global opd/toc sym has been adjusted or not.
3682 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3683 should be set for all globals defined in any opd/toc section. */
754021d0
AM
3684 unsigned int adjust_done:1;
3685
99877b66
AM
3686 /* Set if we twiddled this symbol to weak at some stage. */
3687 unsigned int was_undefined:1;
3688
411e1bfb 3689 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM
3690 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3691 corresponding relocs are encountered during check_relocs.
3692 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3693 indicate the corresponding GOT entry type is not needed.
3694 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3695 a TPREL one. We use a separate flag rather than setting TPREL
3696 just for convenience in distinguishing the two cases. */
3697#define TLS_GD 1 /* GD reloc. */
3698#define TLS_LD 2 /* LD reloc. */
3699#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3700#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3701#define TLS_TLS 16 /* Any TLS reloc. */
3702#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3703#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
e054468f 3704#define PLT_IFUNC 128 /* STT_GNU_IFUNC. */
f961d9dd 3705 unsigned char tls_mask;
65f38f15
AM
3706};
3707
3708/* ppc64 ELF linker hash table. */
3709
3710struct ppc_link_hash_table
3711{
3712 struct elf_link_hash_table elf;
3713
721956f4
AM
3714 /* The stub hash table. */
3715 struct bfd_hash_table stub_hash_table;
3716
3717 /* Another hash table for plt_branch stubs. */
3718 struct bfd_hash_table branch_hash_table;
3719
3720 /* Linker stub bfd. */
3721 bfd *stub_bfd;
3722
3723 /* Linker call-backs. */
4ce794b7
AM
3724 asection * (*add_stub_section) (const char *, asection *);
3725 void (*layout_sections_again) (void);
721956f4
AM
3726
3727 /* Array to keep track of which stub sections have been created, and
3728 information on stub grouping. */
3729 struct map_stub {
3730 /* This is the section to which stubs in the group will be attached. */
3731 asection *link_sec;
3732 /* The stub section. */
3733 asection *stub_sec;
ad8e1ba5
AM
3734 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3735 bfd_vma toc_off;
721956f4
AM
3736 } *stub_group;
3737
ad8e1ba5
AM
3738 /* Temp used when calculating TOC pointers. */
3739 bfd_vma toc_curr;
bf102f86
AM
3740 bfd *toc_bfd;
3741 asection *toc_first_sec;
ad8e1ba5 3742
8f3bab57
AM
3743 /* Highest input section id. */
3744 int top_id;
3745
734b6cf9
AM
3746 /* Highest output section index. */
3747 int top_index;
3748
b3fac117
AM
3749 /* Used when adding symbols. */
3750 struct ppc_link_hash_entry *dot_syms;
3751
734b6cf9
AM
3752 /* List of input sections for each output section. */
3753 asection **input_list;
721956f4 3754
65f38f15 3755 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 3756 asection *got;
4ce794b7
AM
3757 asection *plt;
3758 asection *relplt;
e054468f
AM
3759 asection *iplt;
3760 asection *reliplt;
4ce794b7
AM
3761 asection *dynbss;
3762 asection *relbss;
3763 asection *glink;
82bd7b59 3764 asection *sfpr;
4ce794b7
AM
3765 asection *brlt;
3766 asection *relbrlt;
ec338859 3767
8387904d
AM
3768 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3769 struct ppc_link_hash_entry *tls_get_addr;
3770 struct ppc_link_hash_entry *tls_get_addr_fd;
411e1bfb 3771
927be08e
AM
3772 /* The size of reliplt used by got entry relocs. */
3773 bfd_size_type got_reli_size;
3774
9b5ecbd0
AM
3775 /* Statistics. */
3776 unsigned long stub_count[ppc_stub_plt_call];
3777
ee75fd95
AM
3778 /* Number of stubs against global syms. */
3779 unsigned long stub_globals;
3780
ad8e1ba5 3781 /* Set if we should emit symbols for stubs. */
99877b66 3782 unsigned int emit_stub_syms:1;
ad8e1ba5 3783
a7f2871e
AM
3784 /* Set if __tls_get_addr optimization should not be done. */
3785 unsigned int no_tls_get_addr_opt:1;
3786
4c52953f 3787 /* Support for multiple toc sections. */
33c0ec9d 3788 unsigned int do_multi_toc:1;
4c52953f 3789 unsigned int multi_toc_needed:1;
927be08e 3790 unsigned int second_toc_pass:1;
4c52953f 3791
5d1634d7 3792 /* Set on error. */
99877b66 3793 unsigned int stub_error:1;
721956f4 3794
7d9616d7 3795 /* Temp used by ppc64_elf_process_dot_syms. */
99877b66 3796 unsigned int twiddled_syms:1;
721956f4
AM
3797
3798 /* Incremented every time we size stubs. */
3799 unsigned int stub_iteration;
5d1634d7 3800
87d72d41
AM
3801 /* Small local sym cache. */
3802 struct sym_cache sym_cache;
65f38f15
AM
3803};
3804
4c52953f
AM
3805/* Rename some of the generic section flags to better document how they
3806 are used here. */
b0dddeec
AM
3807
3808/* Nonzero if this section has TLS related relocations. */
3809#define has_tls_reloc sec_flg0
3810
3811/* Nonzero if this section has a call to __tls_get_addr. */
3812#define has_tls_get_addr_call sec_flg1
3813
3814/* Nonzero if this section has any toc or got relocs. */
3815#define has_toc_reloc sec_flg2
3816
3817/* Nonzero if this section has a call to another section that uses
3818 the toc or got. */
d77c8a4b 3819#define makes_toc_func_call sec_flg3
b0dddeec
AM
3820
3821/* Recursion protection when determining above flag. */
d77c8a4b 3822#define call_check_in_progress sec_flg4
70cc837d 3823#define call_check_done sec_flg5
4c52953f 3824
65f38f15
AM
3825/* Get the ppc64 ELF linker hash table from a link_info structure. */
3826
3827#define ppc_hash_table(p) \
4dfe6ac6
NC
3828 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
3829 == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL)
65f38f15 3830
721956f4
AM
3831#define ppc_stub_hash_lookup(table, string, create, copy) \
3832 ((struct ppc_stub_hash_entry *) \
3833 bfd_hash_lookup ((table), (string), (create), (copy)))
3834
3835#define ppc_branch_hash_lookup(table, string, create, copy) \
3836 ((struct ppc_branch_hash_entry *) \
3837 bfd_hash_lookup ((table), (string), (create), (copy)))
3838
3839/* Create an entry in the stub hash table. */
3840
3841static struct bfd_hash_entry *
4ce794b7
AM
3842stub_hash_newfunc (struct bfd_hash_entry *entry,
3843 struct bfd_hash_table *table,
3844 const char *string)
721956f4
AM
3845{
3846 /* Allocate the structure if it has not already been allocated by a
3847 subclass. */
3848 if (entry == NULL)
3849 {
3850 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
3851 if (entry == NULL)
3852 return entry;
3853 }
3854
3855 /* Call the allocation method of the superclass. */
3856 entry = bfd_hash_newfunc (entry, table, string);
3857 if (entry != NULL)
3858 {
3859 struct ppc_stub_hash_entry *eh;
3860
3861 /* Initialize the local fields. */
3862 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 3863 eh->stub_type = ppc_stub_none;
721956f4
AM
3864 eh->stub_sec = NULL;
3865 eh->stub_offset = 0;
3866 eh->target_value = 0;
3867 eh->target_section = NULL;
721956f4
AM
3868 eh->h = NULL;
3869 eh->id_sec = NULL;
3870 }
3871
3872 return entry;
3873}
3874
3875/* Create an entry in the branch hash table. */
3876
3877static struct bfd_hash_entry *
4ce794b7
AM
3878branch_hash_newfunc (struct bfd_hash_entry *entry,
3879 struct bfd_hash_table *table,
3880 const char *string)
721956f4
AM
3881{
3882 /* Allocate the structure if it has not already been allocated by a
3883 subclass. */
3884 if (entry == NULL)
3885 {
3886 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
3887 if (entry == NULL)
3888 return entry;
3889 }
3890
3891 /* Call the allocation method of the superclass. */
3892 entry = bfd_hash_newfunc (entry, table, string);
3893 if (entry != NULL)
3894 {
3895 struct ppc_branch_hash_entry *eh;
3896
3897 /* Initialize the local fields. */
3898 eh = (struct ppc_branch_hash_entry *) entry;
3899 eh->offset = 0;
3900 eh->iter = 0;
3901 }
3902
3903 return entry;
3904}
3905
65f38f15
AM
3906/* Create an entry in a ppc64 ELF linker hash table. */
3907
3908static struct bfd_hash_entry *
4ce794b7
AM
3909link_hash_newfunc (struct bfd_hash_entry *entry,
3910 struct bfd_hash_table *table,
3911 const char *string)
65f38f15
AM
3912{
3913 /* Allocate the structure if it has not already been allocated by a
3914 subclass. */
3915 if (entry == NULL)
3916 {
3917 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
3918 if (entry == NULL)
3919 return entry;
3920 }
3921
3922 /* Call the allocation method of the superclass. */
3923 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3924 if (entry != NULL)
3925 {
3926 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
3927
b3fac117 3928 memset (&eh->u.stub_cache, 0,
908b32fc 3929 (sizeof (struct ppc_link_hash_entry)
b3fac117
AM
3930 - offsetof (struct ppc_link_hash_entry, u.stub_cache)));
3931
3932 /* When making function calls, old ABI code references function entry
3933 points (dot symbols), while new ABI code references the function
3934 descriptor symbol. We need to make any combination of reference and
3935 definition work together, without breaking archive linking.
3936
3937 For a defined function "foo" and an undefined call to "bar":
3938 An old object defines "foo" and ".foo", references ".bar" (possibly
3939 "bar" too).
3940 A new object defines "foo" and references "bar".
3941
3942 A new object thus has no problem with its undefined symbols being
3943 satisfied by definitions in an old object. On the other hand, the
3944 old object won't have ".bar" satisfied by a new object.
3945
3946 Keep a list of newly added dot-symbols. */
3947
3948 if (string[0] == '.')
3949 {
3950 struct ppc_link_hash_table *htab;
3951
3952 htab = (struct ppc_link_hash_table *) table;
3953 eh->u.next_dot_sym = htab->dot_syms;
3954 htab->dot_syms = eh;
3955 }
65f38f15
AM
3956 }
3957
3958 return entry;
3959}
3960
3961/* Create a ppc64 ELF linker hash table. */
3962
3963static struct bfd_link_hash_table *
4ce794b7 3964ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM
3965{
3966 struct ppc_link_hash_table *htab;
3967 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
3968
4ce794b7 3969 htab = bfd_zmalloc (amt);
65f38f15
AM
3970 if (htab == NULL)
3971 return NULL;
3972
66eb6687 3973 if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC
3974 sizeof (struct ppc_link_hash_entry),
3975 PPC64_ELF_DATA))
65f38f15 3976 {
e2d34d7d 3977 free (htab);
65f38f15
AM
3978 return NULL;
3979 }
3980
721956f4 3981 /* Init the stub hash table too. */
66eb6687
AM
3982 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc,
3983 sizeof (struct ppc_stub_hash_entry)))
721956f4
AM
3984 return NULL;
3985
3986 /* And the branch hash table. */
66eb6687
AM
3987 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc,
3988 sizeof (struct ppc_branch_hash_entry)))
721956f4
AM
3989 return NULL;
3990
3254fd24
AM
3991 /* Initializing two fields of the union is just cosmetic. We really
3992 only care about glist, but when compiled on a 32-bit host the
3993 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3994 debugger inspection of these fields look nicer. */
a6aa5195
AM
3995 htab->elf.init_got_refcount.refcount = 0;
3996 htab->elf.init_got_refcount.glist = NULL;
3997 htab->elf.init_plt_refcount.refcount = 0;
3998 htab->elf.init_plt_refcount.glist = NULL;
3999 htab->elf.init_got_offset.offset = 0;
4000 htab->elf.init_got_offset.glist = NULL;
4001 htab->elf.init_plt_offset.offset = 0;
4002 htab->elf.init_plt_offset.glist = NULL;
3254fd24 4003
65f38f15
AM
4004 return &htab->elf.root;
4005}
4006
721956f4
AM
4007/* Free the derived linker hash table. */
4008
4009static void
4ce794b7 4010ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM
4011{
4012 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
4013
4014 bfd_hash_table_free (&ret->stub_hash_table);
4015 bfd_hash_table_free (&ret->branch_hash_table);
4016 _bfd_generic_link_hash_table_free (hash);
4017}
4018
e717da7e
AM
4019/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
4020
4021void
4022ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
4023{
4024 struct ppc_link_hash_table *htab;
4025
4026 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
4027
4028/* Always hook our dynamic sections into the first bfd, which is the
4029 linker created stub bfd. This ensures that the GOT header is at
4030 the start of the output TOC section. */
4031 htab = ppc_hash_table (info);
4dfe6ac6
NC
4032 if (htab == NULL)
4033 return;
e717da7e
AM
4034 htab->stub_bfd = abfd;
4035 htab->elf.dynobj = abfd;
4036}
4037
721956f4
AM
4038/* Build a name for an entry in the stub hash table. */
4039
4040static char *
4ce794b7
AM
4041ppc_stub_name (const asection *input_section,
4042 const asection *sym_sec,
4043 const struct ppc_link_hash_entry *h,
4044 const Elf_Internal_Rela *rel)
721956f4
AM
4045{
4046 char *stub_name;
4047 bfd_size_type len;
4048
4049 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
4050 offsets from a sym as a branch target? In fact, we could
4051 probably assume the addend is always zero. */
4052 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
4053
4054 if (h)
4055 {
4056 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
4057 stub_name = bfd_malloc (len);
46de2a7c
AM
4058 if (stub_name == NULL)
4059 return stub_name;
4060
4061 sprintf (stub_name, "%08x.%s+%x",
4062 input_section->id & 0xffffffff,
4063 h->elf.root.root.string,
4064 (int) rel->r_addend & 0xffffffff);
721956f4
AM
4065 }
4066 else
4067 {
ad8e1ba5 4068 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4 4069 stub_name = bfd_malloc (len);
46de2a7c
AM
4070 if (stub_name == NULL)
4071 return stub_name;
4072
4073 sprintf (stub_name, "%08x.%x:%x+%x",
4074 input_section->id & 0xffffffff,
4075 sym_sec->id & 0xffffffff,
4076 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
4077 (int) rel->r_addend & 0xffffffff);
721956f4 4078 }
ee75fd95
AM
4079 if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
4080 stub_name[len - 2] = 0;
721956f4
AM
4081 return stub_name;
4082}
4083
4084/* Look up an entry in the stub hash. Stub entries are cached because
4085 creating the stub name takes a bit of time. */
4086
4087static struct ppc_stub_hash_entry *
4ce794b7
AM
4088ppc_get_stub_entry (const asection *input_section,
4089 const asection *sym_sec,
039b3fef 4090 struct ppc_link_hash_entry *h,
4ce794b7
AM
4091 const Elf_Internal_Rela *rel,
4092 struct ppc_link_hash_table *htab)
721956f4
AM
4093{
4094 struct ppc_stub_hash_entry *stub_entry;
721956f4
AM
4095 const asection *id_sec;
4096
4097 /* If this input section is part of a group of sections sharing one
4098 stub section, then use the id of the first section in the group.
4099 Stub names need to include a section id, as there may well be
4100 more than one stub used to reach say, printf, and we need to
4101 distinguish between them. */
4102 id_sec = htab->stub_group[input_section->id].link_sec;
4103
b3fac117
AM
4104 if (h != NULL && h->u.stub_cache != NULL
4105 && h->u.stub_cache->h == h
4106 && h->u.stub_cache->id_sec == id_sec)
721956f4 4107 {
b3fac117 4108 stub_entry = h->u.stub_cache;
721956f4
AM
4109 }
4110 else
4111 {
4112 char *stub_name;
4113
4114 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
4115 if (stub_name == NULL)
4116 return NULL;
4117
4118 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 4119 stub_name, FALSE, FALSE);
721956f4 4120 if (h != NULL)
b3fac117 4121 h->u.stub_cache = stub_entry;
721956f4
AM
4122
4123 free (stub_name);
4124 }
4125
4126 return stub_entry;
4127}
4128
4129/* Add a new stub entry to the stub hash. Not all fields of the new
4130 stub entry are initialised. */
4131
4132static struct ppc_stub_hash_entry *
4ce794b7
AM
4133ppc_add_stub (const char *stub_name,
4134 asection *section,
4135 struct ppc_link_hash_table *htab)
721956f4
AM
4136{
4137 asection *link_sec;
4138 asection *stub_sec;
4139 struct ppc_stub_hash_entry *stub_entry;
4140
4141 link_sec = htab->stub_group[section->id].link_sec;
4142 stub_sec = htab->stub_group[section->id].stub_sec;
4143 if (stub_sec == NULL)
4144 {
4145 stub_sec = htab->stub_group[link_sec->id].stub_sec;
4146 if (stub_sec == NULL)
4147 {
d4c88bbb 4148 size_t namelen;
721956f4
AM
4149 bfd_size_type len;
4150 char *s_name;
4151
d4c88bbb
AM
4152 namelen = strlen (link_sec->name);
4153 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM
4154 s_name = bfd_alloc (htab->stub_bfd, len);
4155 if (s_name == NULL)
4156 return NULL;
4157
d4c88bbb
AM
4158 memcpy (s_name, link_sec->name, namelen);
4159 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM
4160 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
4161 if (stub_sec == NULL)
4162 return NULL;
4163 htab->stub_group[link_sec->id].stub_sec = stub_sec;
4164 }
4165 htab->stub_group[section->id].stub_sec = stub_sec;
4166 }
4167
4168 /* Enter this entry into the linker stub hash table. */
4169 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 4170 TRUE, FALSE);
721956f4
AM
4171 if (stub_entry == NULL)
4172 {
d003868e
AM
4173 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
4174 section->owner, stub_name);
721956f4
AM
4175 return NULL;
4176 }
4177
4178 stub_entry->stub_sec = stub_sec;
4179 stub_entry->stub_offset = 0;
4180 stub_entry->id_sec = link_sec;
4181 return stub_entry;
4182}
4183
82bd7b59
AM
4184/* Create sections for linker generated code. */
4185
b34976b6 4186static bfd_boolean
4ce794b7 4187create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM
4188{
4189 struct ppc_link_hash_table *htab;
4190 flagword flags;
4191
4192 htab = ppc_hash_table (info);
4dfe6ac6
NC
4193 if (htab == NULL)
4194 return FALSE;
82bd7b59
AM
4195
4196 /* Create .sfpr for code to save and restore fp regs. */
4197 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
4198 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3496cb2a
L
4199 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
4200 flags);
82bd7b59 4201 if (htab->sfpr == NULL
82bd7b59 4202 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 4203 return FALSE;
82bd7b59 4204
721956f4 4205 /* Create .glink for lazy dynamic linking support. */
3496cb2a
L
4206 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
4207 flags);
4ce794b7 4208 if (htab->glink == NULL
ee4bf8d2 4209 || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
b34976b6 4210 return FALSE;
82bd7b59 4211
e054468f
AM
4212 flags = SEC_ALLOC | SEC_LINKER_CREATED;
4213 htab->iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
4214 if (htab->iplt == NULL
4215 || ! bfd_set_section_alignment (dynobj, htab->iplt, 3))
4216 return FALSE;
4217
4218 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4219 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4220 htab->reliplt = bfd_make_section_anyway_with_flags (dynobj,
4221 ".rela.iplt",
4222 flags);
4223 if (htab->reliplt == NULL
4224 || ! bfd_set_section_alignment (dynobj, htab->reliplt, 3))
4225 return FALSE;
4226
c456f082 4227 /* Create branch lookup table for plt_branch stubs. */
e4e0193e
AM
4228 flags = (SEC_ALLOC | SEC_LOAD
4229 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4230 htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
4231 flags);
4ce794b7 4232 if (htab->brlt == NULL
4ce794b7 4233 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 4234 return FALSE;
721956f4 4235
e4e0193e 4236 if (!info->shared)
c456f082
AM
4237 return TRUE;
4238
e4e0193e
AM
4239 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
4240 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4241 htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
4242 ".rela.branch_lt",
4243 flags);
e054468f 4244 if (htab->relbrlt == NULL
c456f082
AM
4245 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
4246 return FALSE;
4247
b34976b6 4248 return TRUE;
82bd7b59
AM
4249}
4250
e717da7e
AM
4251/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
4252 not already done. */
65f38f15 4253
b34976b6 4254static bfd_boolean
e717da7e 4255create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 4256{
e717da7e
AM
4257 asection *got, *relgot;
4258 flagword flags;
4259 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 4260
0c8d6e5c 4261 if (!is_ppc64_elf (abfd))
0ffa91dd 4262 return FALSE;
4dfe6ac6
NC
4263 if (htab == NULL)
4264 return FALSE;
0ffa91dd 4265
4ce794b7 4266 if (!htab->got)
e717da7e
AM
4267 {
4268 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
4269 return FALSE;
4270
4271 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
4272 if (!htab->got)
4273 abort ();
4274 }
4275
4276 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4277 | SEC_LINKER_CREATED);
4278
c456f082 4279 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
e717da7e 4280 if (!got
e717da7e
AM
4281 || !bfd_set_section_alignment (abfd, got, 3))
4282 return FALSE;
65f38f15 4283
c456f082
AM
4284 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
4285 flags | SEC_READONLY);
e717da7e 4286 if (!relgot
e717da7e 4287 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 4288 return FALSE;
e717da7e
AM
4289
4290 ppc64_elf_tdata (abfd)->got = got;
4291 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 4292 return TRUE;
65f38f15 4293}
5bd4f169 4294
82bd7b59 4295/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 4296
b34976b6 4297static bfd_boolean
4ce794b7 4298ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 4299{
65f38f15 4300 struct ppc_link_hash_table *htab;
5bd4f169 4301
65f38f15 4302 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 4303 return FALSE;
65f38f15 4304
e717da7e 4305 htab = ppc_hash_table (info);
4dfe6ac6
NC
4306 if (htab == NULL)
4307 return FALSE;
4308
e717da7e
AM
4309 if (!htab->got)
4310 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM
4311 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
4312 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
4313 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 4314 if (!info->shared)
4ce794b7 4315 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 4316
e717da7e 4317 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 4318 || (!info->shared && !htab->relbss))
65f38f15
AM
4319 abort ();
4320
b34976b6 4321 return TRUE;
5bd4f169
AM
4322}
4323
b31867b6
AM
4324/* Follow indirect and warning symbol links. */
4325
4326static inline struct bfd_link_hash_entry *
4327follow_link (struct bfd_link_hash_entry *h)
4328{
4329 while (h->type == bfd_link_hash_indirect
4330 || h->type == bfd_link_hash_warning)
4331 h = h->u.i.link;
4332 return h;
4333}
4334
4335static inline struct elf_link_hash_entry *
4336elf_follow_link (struct elf_link_hash_entry *h)
4337{
4338 return (struct elf_link_hash_entry *) follow_link (&h->root);
4339}
4340
4341static inline struct ppc_link_hash_entry *
4342ppc_follow_link (struct ppc_link_hash_entry *h)
4343{
4344 return (struct ppc_link_hash_entry *) follow_link (&h->elf.root);
4345}
4346
40d16e0b
AM
4347/* Merge PLT info on FROM with that on TO. */
4348
4349static void
4350move_plt_plist (struct ppc_link_hash_entry *from,
4351 struct ppc_link_hash_entry *to)
4352{
4353 if (from->elf.plt.plist != NULL)
4354 {
4355 if (to->elf.plt.plist != NULL)
4356 {
4357 struct plt_entry **entp;
4358 struct plt_entry *ent;
4359
4360 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
4361 {
4362 struct plt_entry *dent;
4363
4364 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
4365 if (dent->addend == ent->addend)
4366 {
4367 dent->plt.refcount += ent->plt.refcount;
4368 *entp = ent->next;
4369 break;
4370 }
4371 if (dent == NULL)
4372 entp = &ent->next;
4373 }
4374 *entp = to->elf.plt.plist;
4375 }
4376
4377 to->elf.plt.plist = from->elf.plt.plist;
4378 from->elf.plt.plist = NULL;
4379 }
4380}
4381
65f38f15
AM
4382/* Copy the extra info we tack onto an elf_link_hash_entry. */
4383
4384static void
fcfa13d2
AM
4385ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
4386 struct elf_link_hash_entry *dir,
4387 struct elf_link_hash_entry *ind)
65f38f15
AM
4388{
4389 struct ppc_link_hash_entry *edir, *eind;
4390
4391 edir = (struct ppc_link_hash_entry *) dir;
4392 eind = (struct ppc_link_hash_entry *) ind;
4393
411e1bfb 4394 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 4395 if (eind->dyn_relocs != NULL)
65f38f15 4396 {
bbd7ec4a
AM
4397 if (edir->dyn_relocs != NULL)
4398 {
4399 struct ppc_dyn_relocs **pp;
4400 struct ppc_dyn_relocs *p;
4401
fcfa13d2 4402 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a
AM
4403 list. Merge any entries against the same section. */
4404 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
4405 {
4406 struct ppc_dyn_relocs *q;
4407
4408 for (q = edir->dyn_relocs; q != NULL; q = q->next)
4409 if (q->sec == p->sec)
4410 {
4411 q->pc_count += p->pc_count;
4412 q->count += p->count;
4413 *pp = p->next;
4414 break;
4415 }
4416 if (q == NULL)
4417 pp = &p->next;
4418 }
4419 *pp = edir->dyn_relocs;
4420 }
4421
65f38f15
AM
4422 edir->dyn_relocs = eind->dyn_relocs;
4423 eind->dyn_relocs = NULL;
4424 }
65f38f15 4425
6349e628
AM
4426 edir->is_func |= eind->is_func;
4427 edir->is_func_descriptor |= eind->is_func_descriptor;
58ac9f71 4428 edir->tls_mask |= eind->tls_mask;
b31867b6
AM
4429 if (eind->oh != NULL)
4430 edir->oh = ppc_follow_link (eind->oh);
6349e628 4431
81848ca0 4432 /* If called to transfer flags for a weakdef during processing
f5385ebf 4433 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
81848ca0 4434 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
f5385ebf
AM
4435 if (!(ELIMINATE_COPY_RELOCS
4436 && eind->elf.root.type != bfd_link_hash_indirect
4437 && edir->elf.dynamic_adjusted))
4438 edir->elf.non_got_ref |= eind->elf.non_got_ref;
81848ca0 4439
f5385ebf
AM
4440 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
4441 edir->elf.ref_regular |= eind->elf.ref_regular;
4442 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
4443 edir->elf.needs_plt |= eind->elf.needs_plt;
6349e628
AM
4444
4445 /* If we were called to copy over info for a weak sym, that's all. */
4446 if (eind->elf.root.type != bfd_link_hash_indirect)
4447 return;
4448
81848ca0
AM
4449 /* Copy over got entries that we may have already seen to the
4450 symbol which just became indirect. */
411e1bfb
AM
4451 if (eind->elf.got.glist != NULL)
4452 {
4453 if (edir->elf.got.glist != NULL)
4454 {
4455 struct got_entry **entp;
4456 struct got_entry *ent;
4457
4458 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
4459 {
4460 struct got_entry *dent;
4461
4462 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
4463 if (dent->addend == ent->addend
e717da7e 4464 && dent->owner == ent->owner
411e1bfb
AM
4465 && dent->tls_type == ent->tls_type)
4466 {
4467 dent->got.refcount += ent->got.refcount;
4468 *entp = ent->next;
4469 break;
4470 }
4471 if (dent == NULL)
4472 entp = &ent->next;
4473 }
4474 *entp = edir->elf.got.glist;
4475 }
4476
4477 edir->elf.got.glist = eind->elf.got.glist;
4478 eind->elf.got.glist = NULL;
4479 }
4480
4481 /* And plt entries. */
40d16e0b 4482 move_plt_plist (eind, edir);
411e1bfb 4483
fcfa13d2 4484 if (eind->elf.dynindx != -1)
411e1bfb 4485 {
fcfa13d2
AM
4486 if (edir->elf.dynindx != -1)
4487 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4488 edir->elf.dynstr_index);
411e1bfb
AM
4489 edir->elf.dynindx = eind->elf.dynindx;
4490 edir->elf.dynstr_index = eind->elf.dynstr_index;
4491 eind->elf.dynindx = -1;
4492 eind->elf.dynstr_index = 0;
4493 }
411e1bfb
AM
4494}
4495
8387904d
AM
4496/* Find the function descriptor hash entry from the given function code
4497 hash entry FH. Link the entries via their OH fields. */
4498
4499static struct ppc_link_hash_entry *
b31867b6 4500lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
8387904d
AM
4501{
4502 struct ppc_link_hash_entry *fdh = fh->oh;
4503
4504 if (fdh == NULL)
4505 {
4506 const char *fd_name = fh->elf.root.root.string + 1;
4507
4508 fdh = (struct ppc_link_hash_entry *)
4509 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
b31867b6
AM
4510 if (fdh == NULL)
4511 return fdh;
4512
4513 fdh->is_func_descriptor = 1;
4514 fdh->oh = fh;
4515 fh->is_func = 1;
4516 fh->oh = fdh;
8387904d
AM
4517 }
4518
b31867b6 4519 return ppc_follow_link (fdh);
8387904d
AM
4520}
4521
bb700d78
AM
4522/* Make a fake function descriptor sym for the code sym FH. */
4523
4524static struct ppc_link_hash_entry *
4525make_fdh (struct bfd_link_info *info,
908b32fc 4526 struct ppc_link_hash_entry *fh)
bb700d78
AM
4527{
4528 bfd *abfd;
4529 asymbol *newsym;
4530 struct bfd_link_hash_entry *bh;
4531 struct ppc_link_hash_entry *fdh;
4532
4533 abfd = fh->elf.root.u.undef.abfd;
4534 newsym = bfd_make_empty_symbol (abfd);
4535 newsym->name = fh->elf.root.root.string + 1;
4536 newsym->section = bfd_und_section_ptr;
4537 newsym->value = 0;
908b32fc 4538 newsym->flags = BSF_WEAK;
bb700d78
AM
4539
4540 bh = NULL;
4541 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4542 newsym->flags, newsym->section,
4543 newsym->value, NULL, FALSE, FALSE,
4544 &bh))
4545 return NULL;
4546
4547 fdh = (struct ppc_link_hash_entry *) bh;
4548 fdh->elf.non_elf = 0;
908b32fc
AM
4549 fdh->fake = 1;
4550 fdh->is_func_descriptor = 1;
4551 fdh->oh = fh;
4552 fh->is_func = 1;
4553 fh->oh = fdh;
bb700d78
AM
4554 return fdh;
4555}
4556
8387904d
AM
4557/* Fix function descriptor symbols defined in .opd sections to be
4558 function type. */
555cd476
AM
4559
4560static bfd_boolean
c16153ae 4561ppc64_elf_add_symbol_hook (bfd *ibfd,
e054468f 4562 struct bfd_link_info *info,
555cd476 4563 Elf_Internal_Sym *isym,
b3fac117 4564 const char **name ATTRIBUTE_UNUSED,
555cd476
AM
4565 flagword *flags ATTRIBUTE_UNUSED,
4566 asection **sec,
4567 bfd_vma *value ATTRIBUTE_UNUSED)
4568{
e054468f 4569 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
c16153ae
L
4570 {
4571 if ((ibfd->flags & DYNAMIC) == 0)
4572 elf_tdata (info->output_bfd)->has_ifunc_symbols = TRUE;
4573 }
e054468f
AM
4574 else if (ELF_ST_TYPE (isym->st_info) == STT_FUNC)
4575 ;
4576 else if (*sec != NULL
70cc837d 4577 && strcmp ((*sec)->name, ".opd") == 0)
555cd476 4578 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
433817dd 4579
555cd476
AM
4580 return TRUE;
4581}
4582
8387904d 4583/* This function makes an old ABI object reference to ".bar" cause the
908b32fc
AM
4584 inclusion of a new ABI object archive that defines "bar".
4585 NAME is a symbol defined in an archive. Return a symbol in the hash
4586 table that might be satisfied by the archive symbols. */
8387904d
AM
4587
4588static struct elf_link_hash_entry *
4589ppc64_elf_archive_symbol_lookup (bfd *abfd,
4590 struct bfd_link_info *info,
4591 const char *name)
4592{
4593 struct elf_link_hash_entry *h;
4594 char *dot_name;
4595 size_t len;
4596
4597 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
908b32fc
AM
4598 if (h != NULL
4599 /* Don't return this sym if it is a fake function descriptor
4600 created by add_symbol_adjust. */
4601 && !(h->root.type == bfd_link_hash_undefweak
4602 && ((struct ppc_link_hash_entry *) h)->fake))
8387904d
AM
4603 return h;
4604
4605 if (name[0] == '.')
4606 return h;
4607
4608 len = strlen (name);
4609 dot_name = bfd_alloc (abfd, len + 2);
4610 if (dot_name == NULL)
4611 return (struct elf_link_hash_entry *) 0 - 1;
4612 dot_name[0] = '.';
4613 memcpy (dot_name + 1, name, len + 1);
4614 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4615 bfd_release (abfd, dot_name);
4616 return h;
4617}
4618
4619/* This function satisfies all old ABI object references to ".bar" if a
99877b66
AM
4620 new ABI object defines "bar". Well, at least, undefined dot symbols
4621 are made weak. This stops later archive searches from including an
4622 object if we already have a function descriptor definition. It also
35b0ce59
AM
4623 prevents the linker complaining about undefined symbols.
4624 We also check and correct mismatched symbol visibility here. The
4625 most restrictive visibility of the function descriptor and the
4626 function entry symbol is used. */
8387904d
AM
4627
4628static bfd_boolean
b3fac117 4629add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info)
8387904d 4630{
8387904d
AM
4631 struct ppc_link_hash_table *htab;
4632 struct ppc_link_hash_entry *fdh;
4633
b3fac117 4634 if (eh->elf.root.type == bfd_link_hash_indirect)
8387904d
AM
4635 return TRUE;
4636
b3fac117
AM
4637 if (eh->elf.root.type == bfd_link_hash_warning)
4638 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
8387904d 4639
b3fac117
AM
4640 if (eh->elf.root.root.string[0] != '.')
4641 abort ();
8387904d 4642
b3fac117 4643 htab = ppc_hash_table (info);
4dfe6ac6
NC
4644 if (htab == NULL)
4645 return FALSE;
4646
b31867b6
AM
4647 fdh = lookup_fdh (eh, htab);
4648 if (fdh == NULL)
4649 {
4650 if (!info->relocatable
4651 && (eh->elf.root.type == bfd_link_hash_undefined
4652 || eh->elf.root.type == bfd_link_hash_undefweak)
4653 && eh->elf.ref_regular)
4654 {
4655 /* Make an undefweak function descriptor sym, which is enough to
4656 pull in an --as-needed shared lib, but won't cause link
4657 errors. Archives are handled elsewhere. */
4658 fdh = make_fdh (info, eh);
4659 if (fdh == NULL)
4660 return FALSE;
4661 fdh->elf.ref_regular = 1;
4662 }
bb700d78 4663 }
b31867b6 4664 else
8387904d 4665 {
35b0ce59
AM
4666 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4667 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4668 if (entry_vis < descr_vis)
4669 fdh->elf.other += entry_vis - descr_vis;
4670 else if (entry_vis > descr_vis)
4671 eh->elf.other += descr_vis - entry_vis;
4672
e87d886e
AM
4673 if ((fdh->elf.root.type == bfd_link_hash_defined
4674 || fdh->elf.root.type == bfd_link_hash_defweak)
4675 && eh->elf.root.type == bfd_link_hash_undefined)
35b0ce59
AM
4676 {
4677 eh->elf.root.type = bfd_link_hash_undefweak;
4678 eh->was_undefined = 1;
4679 htab->twiddled_syms = 1;
4680 }
8387904d 4681 }
99877b66 4682
8387904d
AM
4683 return TRUE;
4684}
4685
b3fac117
AM
4686/* Process list of dot-symbols we made in link_hash_newfunc. */
4687
8387904d 4688static bfd_boolean
7d9616d7 4689ppc64_elf_process_dot_syms (bfd *ibfd, struct bfd_link_info *info)
8387904d 4690{
99877b66 4691 struct ppc_link_hash_table *htab;
b3fac117 4692 struct ppc_link_hash_entry **p, *eh;
433817dd 4693
0c8d6e5c 4694 if (!is_ppc64_elf (info->output_bfd))
35b0ce59 4695 return TRUE;
4dfe6ac6
NC
4696 htab = ppc_hash_table (info);
4697 if (htab == NULL)
4698 return FALSE;
35b0ce59 4699
0c8d6e5c 4700 if (is_ppc64_elf (ibfd))
b3fac117
AM
4701 {
4702 p = &htab->dot_syms;
4703 while ((eh = *p) != NULL)
4704 {
4705 *p = NULL;
4706 if (!add_symbol_adjust (eh, info))
4707 return FALSE;
4708 p = &eh->u.next_dot_sym;
4709 }
4710 }
4711
4712 /* Clear the list for non-ppc64 input files. */
4713 p = &htab->dot_syms;
4714 while ((eh = *p) != NULL)
4715 {
4716 *p = NULL;
4717 p = &eh->u.next_dot_sym;
4718 }
99877b66
AM
4719
4720 /* We need to fix the undefs list for any syms we have twiddled to
4721 undef_weak. */
4722 if (htab->twiddled_syms)
4723 {
77cfaee6 4724 bfd_link_repair_undef_list (&htab->elf.root);
99877b66
AM
4725 htab->twiddled_syms = 0;
4726 }
b3fac117 4727 return TRUE;
8387904d
AM
4728}
4729
97fed1c9
JJ
4730/* Undo hash table changes when an --as-needed input file is determined
4731 not to be needed. */
4732
4733static bfd_boolean
4734ppc64_elf_as_needed_cleanup (bfd *ibfd ATTRIBUTE_UNUSED,
4735 struct bfd_link_info *info)
4736{
4dfe6ac6
NC
4737 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4738
4739 if (htab == NULL)
4740 return FALSE;
4741
4742 htab->dot_syms = NULL;
97fed1c9
JJ
4743 return TRUE;
4744}
4745
e054468f 4746static struct plt_entry **
4ce794b7
AM
4747update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
4748 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM
4749{
4750 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e054468f 4751 struct plt_entry **local_plt;
f961d9dd 4752 unsigned char *local_got_tls_masks;
411e1bfb
AM
4753
4754 if (local_got_ents == NULL)
4755 {
4756 bfd_size_type size = symtab_hdr->sh_info;
4757
e054468f
AM
4758 size *= (sizeof (*local_got_ents)
4759 + sizeof (*local_plt)
4760 + sizeof (*local_got_tls_masks));
4ce794b7 4761 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb 4762 if (local_got_ents == NULL)
e054468f 4763 return NULL;
411e1bfb
AM
4764 elf_local_got_ents (abfd) = local_got_ents;
4765 }
4766
e054468f 4767 if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0)
411e1bfb
AM
4768 {
4769 struct got_entry *ent;
4770
4771 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM
4772 if (ent->addend == r_addend
4773 && ent->owner == abfd
4774 && ent->tls_type == tls_type)
411e1bfb
AM
4775 break;
4776 if (ent == NULL)
4777 {
4778 bfd_size_type amt = sizeof (*ent);
4ce794b7 4779 ent = bfd_alloc (abfd, amt);
411e1bfb
AM
4780 if (ent == NULL)
4781 return FALSE;
4782 ent->next = local_got_ents[r_symndx];
4783 ent->addend = r_addend;
e717da7e 4784 ent->owner = abfd;
411e1bfb 4785 ent->tls_type = tls_type;
927be08e 4786 ent->is_indirect = FALSE;
411e1bfb
AM
4787 ent->got.refcount = 0;
4788 local_got_ents[r_symndx] = ent;
4789 }
4790 ent->got.refcount += 1;
4791 }
4792
e054468f 4793 local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info);
f961d9dd 4794 local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
e7b938ca 4795 local_got_tls_masks[r_symndx] |= tls_type;
e054468f
AM
4796
4797 return local_plt + r_symndx;
65f38f15
AM
4798}
4799
411e1bfb 4800static bfd_boolean
e054468f 4801update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend)
1e2f5b6e 4802{
411e1bfb 4803 struct plt_entry *ent;
1e2f5b6e 4804
e054468f 4805 for (ent = *plist; ent != NULL; ent = ent->next)
411e1bfb
AM
4806 if (ent->addend == addend)
4807 break;
4808 if (ent == NULL)
1e2f5b6e 4809 {
411e1bfb 4810 bfd_size_type amt = sizeof (*ent);
4ce794b7 4811 ent = bfd_alloc (abfd, amt);
411e1bfb
AM
4812 if (ent == NULL)
4813 return FALSE;
e054468f 4814 ent->next = *plist;
411e1bfb
AM
4815 ent->addend = addend;
4816 ent->plt.refcount = 0;
e054468f 4817 *plist = ent;
1e2f5b6e 4818 }
411e1bfb 4819 ent->plt.refcount += 1;
b34976b6 4820 return TRUE;
1e2f5b6e
AM
4821}
4822
e054468f
AM
4823static bfd_boolean
4824is_branch_reloc (enum elf_ppc64_reloc_type r_type)
4825{
4826 return (r_type == R_PPC64_REL24
4827 || r_type == R_PPC64_REL14
4828 || r_type == R_PPC64_REL14_BRTAKEN
4829 || r_type == R_PPC64_REL14_BRNTAKEN
4830 || r_type == R_PPC64_ADDR24
4831 || r_type == R_PPC64_ADDR14
4832 || r_type == R_PPC64_ADDR14_BRTAKEN
4833 || r_type == R_PPC64_ADDR14_BRNTAKEN);
4834}
4835
5bd4f169 4836/* Look through the relocs for a section during the first phase, and
65f38f15 4837 calculate needed space in the global offset table, procedure
5d1634d7 4838 linkage table, and dynamic reloc sections. */
5bd4f169 4839
b34976b6 4840static bfd_boolean
4ce794b7
AM
4841ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
4842 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4843{
65f38f15 4844 struct ppc_link_hash_table *htab;
5bd4f169
AM
4845 Elf_Internal_Shdr *symtab_hdr;
4846 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4847 const Elf_Internal_Rela *rel;
4848 const Elf_Internal_Rela *rel_end;
5bd4f169 4849 asection *sreloc;
1e2f5b6e 4850 asection **opd_sym_map;
3a71aa26 4851 struct elf_link_hash_entry *tga, *dottga;
5bd4f169 4852
1049f94e 4853 if (info->relocatable)
b34976b6 4854 return TRUE;
5bd4f169 4855
680a3378
AM
4856 /* Don't do anything special with non-loaded, non-alloced sections.
4857 In particular, any relocs in such sections should not affect GOT
4858 and PLT reference counting (ie. we don't allow them to create GOT
4859 or PLT entries), there's no possibility or desire to optimize TLS
4860 relocs, and there's not much point in propagating relocs to shared
4861 libs that the dynamic linker won't relocate. */
4862 if ((sec->flags & SEC_ALLOC) == 0)
4863 return TRUE;
4864
0c8d6e5c 4865 BFD_ASSERT (is_ppc64_elf (abfd));
0ffa91dd 4866
65f38f15 4867 htab = ppc_hash_table (info);
4dfe6ac6
NC
4868 if (htab == NULL)
4869 return FALSE;
4870
3a71aa26
AM
4871 tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
4872 FALSE, FALSE, TRUE);
4873 dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
4874 FALSE, FALSE, TRUE);
0ffa91dd 4875 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169
AM
4876
4877 sym_hashes = elf_sym_hashes (abfd);
4878 sym_hashes_end = (sym_hashes
1e2f5b6e
AM
4879 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
4880 - symtab_hdr->sh_info);
5bd4f169
AM
4881
4882 sreloc = NULL;
1e2f5b6e 4883 opd_sym_map = NULL;
70cc837d 4884 if (strcmp (sec->name, ".opd") == 0)
1e2f5b6e
AM
4885 {
4886 /* Garbage collection needs some extra help with .opd sections.
4887 We don't want to necessarily keep everything referenced by
4888 relocs in .opd, as that would keep all functions. Instead,
4889 if we reference an .opd symbol (a function descriptor), we
4890 want to keep the function code symbol's section. This is
4891 easy for global symbols, but for local syms we need to keep
74f0fb50 4892 information about the associated function section. */
1e2f5b6e
AM
4893 bfd_size_type amt;
4894
74f0fb50 4895 amt = sec->size * sizeof (*opd_sym_map) / 8;
4ce794b7 4896 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 4897 if (opd_sym_map == NULL)
b34976b6 4898 return FALSE;
74f0fb50 4899 ppc64_elf_section_data (sec)->u.opd.func_sec = opd_sym_map;
7c8fe5c4
AM
4900 BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal);
4901 ppc64_elf_section_data (sec)->sec_type = sec_opd;
1e2f5b6e 4902 }
5bd4f169 4903
82bd7b59
AM
4904 if (htab->sfpr == NULL
4905 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 4906 return FALSE;
82bd7b59 4907
5bd4f169
AM
4908 rel_end = relocs + sec->reloc_count;
4909 for (rel = relocs; rel < rel_end; rel++)
4910 {
4911 unsigned long r_symndx;
4912 struct elf_link_hash_entry *h;
04c9666a 4913 enum elf_ppc64_reloc_type r_type;
727fc41e 4914 int tls_type;
7c8fe5c4 4915 struct _ppc64_elf_section_data *ppc64_sec;
e054468f 4916 struct plt_entry **ifunc;
5bd4f169
AM
4917
4918 r_symndx = ELF64_R_SYM (rel->r_info);
4919 if (r_symndx < symtab_hdr->sh_info)
4920 h = NULL;
4921 else
973a3492
L
4922 {
4923 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 4924 h = elf_follow_link (h);
973a3492 4925 }
5bd4f169 4926
727fc41e 4927 tls_type = 0;
e054468f 4928 ifunc = NULL;
25f23106
AM
4929 if (h != NULL)
4930 {
4931 if (h->type == STT_GNU_IFUNC)
4932 {
4933 h->needs_plt = 1;
4934 ifunc = &h->plt.plist;
4935 }
4936 }
4937 else
4938 {
4939 Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
4940 abfd, r_symndx);
4941 if (isym == NULL)
4942 return FALSE;
4943
4944 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
4945 {
4946 ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
4947 rel->r_addend, PLT_IFUNC);
4948 if (ifunc == NULL)
4949 return FALSE;
4950 }
4951 }
4ce794b7 4952 r_type = ELF64_R_TYPE (rel->r_info);
e054468f
AM
4953 if (is_branch_reloc (r_type))
4954 {
4955 if (h != NULL && (h == tga || h == dottga))
4956 {
4957 if (rel != relocs
4958 && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD
4959 || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD))
4960 /* We have a new-style __tls_get_addr call with a marker
4961 reloc. */
4962 ;
4963 else
4964 /* Mark this section as having an old-style call. */
4965 sec->has_tls_get_addr_call = 1;
4966 }
727fc41e 4967
e054468f 4968 /* STT_GNU_IFUNC symbols must have a PLT entry. */
e054468f
AM
4969 if (ifunc != NULL
4970 && !update_plt_info (abfd, ifunc, rel->r_addend))
4971 return FALSE;
4972 }
727fc41e 4973
a33d1f77 4974 switch (r_type)
5bd4f169 4975 {
727fc41e
AM
4976 case R_PPC64_TLSGD:
4977 case R_PPC64_TLSLD:
4978 /* These special tls relocs tie a call to __tls_get_addr with
4979 its parameter symbol. */
4980 break;
4981
411e1bfb
AM
4982 case R_PPC64_GOT_TLSLD16:
4983 case R_PPC64_GOT_TLSLD16_LO:
4984 case R_PPC64_GOT_TLSLD16_HI:
4985 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 4986 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
4987 goto dogottls;
4988
4989 case R_PPC64_GOT_TLSGD16:
4990 case R_PPC64_GOT_TLSGD16_LO:
4991 case R_PPC64_GOT_TLSGD16_HI:
4992 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4993 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
4994 goto dogottls;
4995
4996 case R_PPC64_GOT_TPREL16_DS:
4997 case R_PPC64_GOT_TPREL16_LO_DS:
4998 case R_PPC64_GOT_TPREL16_HI:
4999 case R_PPC64_GOT_TPREL16_HA:
1d483afe 5000 if (!info->executable)
411e1bfb
AM
5001 info->flags |= DF_STATIC_TLS;
5002 tls_type = TLS_TLS | TLS_TPREL;
5003 goto dogottls;
5004
5005 case R_PPC64_GOT_DTPREL16_DS:
5006 case R_PPC64_GOT_DTPREL16_LO_DS:
5007 case R_PPC64_GOT_DTPREL16_HI:
5008 case R_PPC64_GOT_DTPREL16_HA:
5009 tls_type = TLS_TLS | TLS_DTPREL;
5010 dogottls:
5011 sec->has_tls_reloc = 1;
5012 /* Fall thru */
5013
5bd4f169 5014 case R_PPC64_GOT16:
5bd4f169 5015 case R_PPC64_GOT16_DS:
65f38f15
AM
5016 case R_PPC64_GOT16_HA:
5017 case R_PPC64_GOT16_HI:
5018 case R_PPC64_GOT16_LO:
5bd4f169 5019 case R_PPC64_GOT16_LO_DS:
65f38f15 5020 /* This symbol requires a global offset table entry. */
4c52953f 5021 sec->has_toc_reloc = 1;
33c0ec9d
AM
5022 if (r_type == R_PPC64_GOT_TLSLD16
5023 || r_type == R_PPC64_GOT_TLSGD16
5024 || r_type == R_PPC64_GOT_TPREL16_DS
5025 || r_type == R_PPC64_GOT_DTPREL16_DS
5026 || r_type == R_PPC64_GOT16
5027 || r_type == R_PPC64_GOT16_DS)
5028 {
5029 htab->do_multi_toc = 1;
d77c8a4b 5030 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
33c0ec9d
AM
5031 }
5032
e717da7e
AM
5033 if (ppc64_elf_tdata (abfd)->got == NULL
5034 && !create_got_section (abfd, info))
b34976b6 5035 return FALSE;
5bd4f169
AM
5036
5037 if (h != NULL)
5038 {
411e1bfb
AM
5039 struct ppc_link_hash_entry *eh;
5040 struct got_entry *ent;
65f38f15 5041
411e1bfb
AM
5042 eh = (struct ppc_link_hash_entry *) h;
5043 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
5044 if (ent->addend == rel->r_addend
e717da7e 5045 && ent->owner == abfd
411e1bfb
AM
5046 && ent->tls_type == tls_type)
5047 break;
5048 if (ent == NULL)
5bd4f169 5049 {
411e1bfb 5050 bfd_size_type amt = sizeof (*ent);
4ce794b7 5051 ent = bfd_alloc (abfd, amt);
411e1bfb 5052 if (ent == NULL)
b34976b6 5053 return FALSE;
411e1bfb
AM
5054 ent->next = eh->elf.got.glist;
5055 ent->addend = rel->r_addend;
e717da7e 5056 ent->owner = abfd;
411e1bfb 5057 ent->tls_type = tls_type;
927be08e 5058 ent->is_indirect = FALSE;
411e1bfb
AM
5059 ent->got.refcount = 0;
5060 eh->elf.got.glist = ent;
5bd4f169 5061 }
411e1bfb 5062 ent->got.refcount += 1;
e7b938ca 5063 eh->tls_mask |= tls_type;
5bd4f169 5064 }
411e1bfb
AM
5065 else
5066 /* This is a global offset table entry for a local symbol. */
5067 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5068 rel->r_addend, tls_type))
5069 return FALSE;
5bd4f169
AM
5070 break;
5071
5bd4f169 5072 case R_PPC64_PLT16_HA:
65f38f15
AM
5073 case R_PPC64_PLT16_HI:
5074 case R_PPC64_PLT16_LO:
5075 case R_PPC64_PLT32:
5076 case R_PPC64_PLT64:
5bd4f169 5077 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM
5078 actually build the entry in adjust_dynamic_symbol,
5079 because this might be a case of linking PIC code without
5080 linking in any dynamic objects, in which case we don't
5081 need to generate a procedure linkage table after all. */
5bd4f169
AM
5082 if (h == NULL)
5083 {
5084 /* It does not make sense to have a procedure linkage
3fad3c7c 5085 table entry for a local symbol. */
5bd4f169 5086 bfd_set_error (bfd_error_bad_value);
b34976b6 5087 return FALSE;
5bd4f169 5088 }
411e1bfb 5089 else
e054468f
AM
5090 {
5091 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
5092 return FALSE;
5093 h->needs_plt = 1;
5094 if (h->root.root.string[0] == '.'
5095 && h->root.root.string[1] != '\0')
5096 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5097 }
5bd4f169
AM
5098 break;
5099
5100 /* The following relocations don't need to propagate the
5101 relocation if linking a shared object since they are
5102 section relative. */
5103 case R_PPC64_SECTOFF:
5104 case R_PPC64_SECTOFF_LO:
5105 case R_PPC64_SECTOFF_HI:
5106 case R_PPC64_SECTOFF_HA:
5107 case R_PPC64_SECTOFF_DS:
5108 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM
5109 case R_PPC64_DTPREL16:
5110 case R_PPC64_DTPREL16_LO:
5111 case R_PPC64_DTPREL16_HI:
5112 case R_PPC64_DTPREL16_HA:
5113 case R_PPC64_DTPREL16_DS:
5114 case R_PPC64_DTPREL16_LO_DS:
5115 case R_PPC64_DTPREL16_HIGHER:
5116 case R_PPC64_DTPREL16_HIGHERA:
5117 case R_PPC64_DTPREL16_HIGHEST:
5118 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM
5119 break;
5120
ad8e1ba5 5121 /* Nor do these. */
25f23106
AM
5122 case R_PPC64_REL16:
5123 case R_PPC64_REL16_LO:
5124 case R_PPC64_REL16_HI:
5125 case R_PPC64_REL16_HA:
5126 break;
5127
ad8e1ba5 5128 case R_PPC64_TOC16:
33c0ec9d
AM
5129 case R_PPC64_TOC16_DS:
5130 htab->do_multi_toc = 1;
d77c8a4b 5131 ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1;
ad8e1ba5
AM
5132 case R_PPC64_TOC16_LO:
5133 case R_PPC64_TOC16_HI:
5134 case R_PPC64_TOC16_HA:
ad8e1ba5 5135 case R_PPC64_TOC16_LO_DS:
4c52953f 5136 sec->has_toc_reloc = 1;
ad8e1ba5
AM
5137 break;
5138
5bd4f169
AM
5139 /* This relocation describes the C++ object vtable hierarchy.
5140 Reconstruct it for later use during GC. */
5141 case R_PPC64_GNU_VTINHERIT:
c152c796 5142 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 5143 return FALSE;
5bd4f169
AM
5144 break;
5145
5146 /* This relocation describes which C++ vtable entries are actually
5147 used. Record for later use during GC. */
5148 case R_PPC64_GNU_VTENTRY:
d17e0c6e
JB
5149 BFD_ASSERT (h != NULL);
5150 if (h != NULL
5151 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 5152 return FALSE;
5bd4f169
AM
5153 break;
5154
721956f4
AM
5155 case R_PPC64_REL14:
5156 case R_PPC64_REL14_BRTAKEN:
5157 case R_PPC64_REL14_BRNTAKEN:
220c76dd
AM
5158 {
5159 asection *dest = NULL;
5160
5161 /* Heuristic: If jumping outside our section, chances are
5162 we are going to need a stub. */
5163 if (h != NULL)
5164 {
5165 /* If the sym is weak it may be overridden later, so
5166 don't assume we know where a weak sym lives. */
5167 if (h->root.type == bfd_link_hash_defined)
5168 dest = h->root.u.def.section;
5169 }
5170 else
87d72d41
AM
5171 {
5172 Elf_Internal_Sym *isym;
5173
5174 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5175 abfd, r_symndx);
5176 if (isym == NULL)
5177 return FALSE;
5178
5179 dest = bfd_section_from_elf_index (abfd, isym->st_shndx);
5180 }
5181
220c76dd 5182 if (dest != sec)
7c8fe5c4 5183 ppc64_elf_section_data (sec)->has_14bit_branch = 1;
220c76dd 5184 }
721956f4
AM
5185 /* Fall through. */
5186
5d1634d7 5187 case R_PPC64_REL24:
e054468f 5188 if (h != NULL && ifunc == NULL)
5d1634d7
AM
5189 {
5190 /* We may need a .plt entry if the function this reloc
5191 refers to is in a shared lib. */
e054468f 5192 if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
411e1bfb 5193 return FALSE;
e054468f
AM
5194 h->needs_plt = 1;
5195 if (h->root.root.string[0] == '.'
5196 && h->root.root.string[1] != '\0')
5197 ((struct ppc_link_hash_entry *) h)->is_func = 1;
3a71aa26 5198 if (h == tga || h == dottga)
411e1bfb 5199 sec->has_tls_reloc = 1;
411e1bfb
AM
5200 }
5201 break;
5202
5203 case R_PPC64_TPREL64:
5204 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
1d483afe 5205 if (!info->executable)
411e1bfb
AM
5206 info->flags |= DF_STATIC_TLS;
5207 goto dotlstoc;
5208
5209 case R_PPC64_DTPMOD64:
5210 if (rel + 1 < rel_end
5211 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
5212 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 5213 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 5214 else
951fd09b 5215 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM
5216 goto dotlstoc;
5217
5218 case R_PPC64_DTPREL64:
5219 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
5220 if (rel != relocs
5221 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
5222 && rel[-1].r_offset == rel->r_offset - 8)
5223 /* This is the second reloc of a dtpmod, dtprel pair.
5224 Don't mark with TLS_DTPREL. */
5225 goto dodyn;
5226
5227 dotlstoc:
5228 sec->has_tls_reloc = 1;
5229 if (h != NULL)
5230 {
5231 struct ppc_link_hash_entry *eh;
5232 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 5233 eh->tls_mask |= tls_type;
411e1bfb
AM
5234 }
5235 else
5236 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
5237 rel->r_addend, tls_type))
5238 return FALSE;
5239
7c8fe5c4
AM
5240 ppc64_sec = ppc64_elf_section_data (sec);
5241 if (ppc64_sec->sec_type != sec_toc)
411e1bfb 5242 {
3a71aa26
AM
5243 bfd_size_type amt;
5244
e7b938ca 5245 /* One extra to simplify get_tls_mask. */
3a71aa26
AM
5246 amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned);
5247 ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt);
5248 if (ppc64_sec->u.toc.symndx == NULL)
5249 return FALSE;
5250 amt = sec->size * sizeof (bfd_vma) / 8;
5251 ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt);
5252 if (ppc64_sec->u.toc.add == NULL)
411e1bfb 5253 return FALSE;
7c8fe5c4
AM
5254 BFD_ASSERT (ppc64_sec->sec_type == sec_normal);
5255 ppc64_sec->sec_type = sec_toc;
411e1bfb
AM
5256 }
5257 BFD_ASSERT (rel->r_offset % 8 == 0);
3a71aa26
AM
5258 ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx;
5259 ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend;
951fd09b
AM
5260
5261 /* Mark the second slot of a GD or LD entry.
5262 -1 to indicate GD and -2 to indicate LD. */
5263 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3a71aa26 5264 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1;
951fd09b 5265 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3a71aa26 5266 ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM
5267 goto dodyn;
5268
5269 case R_PPC64_TPREL16:
5270 case R_PPC64_TPREL16_LO:
5271 case R_PPC64_TPREL16_HI:
5272 case R_PPC64_TPREL16_HA:
5273 case R_PPC64_TPREL16_DS:
5274 case R_PPC64_TPREL16_LO_DS:
5275 case R_PPC64_TPREL16_HIGHER:
5276 case R_PPC64_TPREL16_HIGHERA:
5277 case R_PPC64_TPREL16_HIGHEST:
5278 case R_PPC64_TPREL16_HIGHESTA:
5279 if (info->shared)
5280 {
1d483afe
AM
5281 if (!info->executable)
5282 info->flags |= DF_STATIC_TLS;
411e1bfb 5283 goto dodyn;
5d1634d7
AM
5284 }
5285 break;
5286
e86ce104 5287 case R_PPC64_ADDR64:
1e2f5b6e 5288 if (opd_sym_map != NULL
1e2f5b6e 5289 && rel + 1 < rel_end
4ce794b7 5290 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e 5291 {
8387904d
AM
5292 if (h != NULL)
5293 {
5294 if (h->root.root.string[0] == '.'
5295 && h->root.root.string[1] != 0
b31867b6 5296 && lookup_fdh ((struct ppc_link_hash_entry *) h, htab))
8387904d
AM
5297 ;
5298 else
5299 ((struct ppc_link_hash_entry *) h)->is_func = 1;
5300 }
5301 else
5302 {
5303 asection *s;
87d72d41 5304 Elf_Internal_Sym *isym;
1e2f5b6e 5305
87d72d41
AM
5306 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5307 abfd, r_symndx);
5308 if (isym == NULL)
8387904d 5309 return FALSE;
87d72d41
AM
5310
5311 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5312 if (s != NULL && s != sec)
3f764659 5313 opd_sym_map[rel->r_offset / 8] = s;
8387904d 5314 }
1e2f5b6e 5315 }
e86ce104
AM
5316 /* Fall through. */
5317
04c9666a 5318 case R_PPC64_REL30:
5bd4f169 5319 case R_PPC64_REL32:
04c9666a 5320 case R_PPC64_REL64:
65f38f15
AM
5321 case R_PPC64_ADDR14:
5322 case R_PPC64_ADDR14_BRNTAKEN:
5323 case R_PPC64_ADDR14_BRTAKEN:
5324 case R_PPC64_ADDR16:
5325 case R_PPC64_ADDR16_DS:
5326 case R_PPC64_ADDR16_HA:
5327 case R_PPC64_ADDR16_HI:
5328 case R_PPC64_ADDR16_HIGHER:
5329 case R_PPC64_ADDR16_HIGHERA:
5330 case R_PPC64_ADDR16_HIGHEST:
5331 case R_PPC64_ADDR16_HIGHESTA:
5332 case R_PPC64_ADDR16_LO:
5333 case R_PPC64_ADDR16_LO_DS:
5334 case R_PPC64_ADDR24:
65f38f15 5335 case R_PPC64_ADDR32:
65f38f15
AM
5336 case R_PPC64_UADDR16:
5337 case R_PPC64_UADDR32:
5338 case R_PPC64_UADDR64:
5bd4f169 5339 case R_PPC64_TOC:
81848ca0
AM
5340 if (h != NULL && !info->shared)
5341 /* We may need a copy reloc. */
f5385ebf 5342 h->non_got_ref = 1;
81848ca0 5343
41bd81ab 5344 /* Don't propagate .opd relocs. */
1e2f5b6e 5345 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 5346 break;
e86ce104 5347
65f38f15
AM
5348 /* If we are creating a shared library, and this is a reloc
5349 against a global symbol, or a non PC relative reloc
5350 against a local symbol, then we need to copy the reloc
5351 into the shared library. However, if we are linking with
5352 -Bsymbolic, we do not need to copy a reloc against a
5353 global symbol which is defined in an object we are
5354 including in the link (i.e., DEF_REGULAR is set). At
5355 this point we have not seen all the input files, so it is
5356 possible that DEF_REGULAR is not set now but will be set
5357 later (it is never cleared). In case of a weak definition,
5358 DEF_REGULAR may be cleared later by a strong definition in
5359 a shared library. We account for that possibility below by
f4656909 5360 storing information in the dyn_relocs field of the hash
65f38f15
AM
5361 table entry. A similar situation occurs when creating
5362 shared libraries and symbol visibility changes render the
5363 symbol local.
5364
5365 If on the other hand, we are creating an executable, we
5366 may need to keep relocations for symbols satisfied by a
5367 dynamic library if we manage to avoid copy relocs for the
5368 symbol. */
411e1bfb 5369 dodyn:
65f38f15 5370 if ((info->shared
1d483afe 5371 && (must_be_dyn_reloc (info, r_type)
65f38f15
AM
5372 || (h != NULL
5373 && (! info->symbolic
5374 || h->root.type == bfd_link_hash_defweak
f5385ebf 5375 || !h->def_regular))))
f4656909
AM
5376 || (ELIMINATE_COPY_RELOCS
5377 && !info->shared
65f38f15
AM
5378 && h != NULL
5379 && (h->root.type == bfd_link_hash_defweak
25f23106
AM
5380 || !h->def_regular))
5381 || (!info->shared
5382 && ifunc != NULL))
5bd4f169 5383 {
ec338859
AM
5384 struct ppc_dyn_relocs *p;
5385 struct ppc_dyn_relocs **head;
5386
65f38f15
AM
5387 /* We must copy these reloc types into the output file.
5388 Create a reloc section in dynobj and make room for
5389 this reloc. */
5bd4f169
AM
5390 if (sreloc == NULL)
5391 {
83bac4b0
NC
5392 sreloc = _bfd_elf_make_dynamic_reloc_section
5393 (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE);
65f38f15 5394
5bd4f169 5395 if (sreloc == NULL)
83bac4b0 5396 return FALSE;
5bd4f169
AM
5397 }
5398
65f38f15
AM
5399 /* If this is a global symbol, we count the number of
5400 relocations we need for this symbol. */
5401 if (h != NULL)
5402 {
ec338859 5403 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM
5404 }
5405 else
5406 {
ec338859
AM
5407 /* Track dynamic relocs needed for local syms too.
5408 We really need local syms available to do this
5409 easily. Oh well. */
ec338859 5410 asection *s;
6edfbbad 5411 void *vpp;
87d72d41 5412 Elf_Internal_Sym *isym;
6edfbbad 5413
87d72d41
AM
5414 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5415 abfd, r_symndx);
5416 if (isym == NULL)
b34976b6 5417 return FALSE;
ec338859 5418
87d72d41
AM
5419 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5420 if (s == NULL)
5421 s = sec;
5422
6edfbbad
DJ
5423 vpp = &elf_section_data (s)->local_dynrel;
5424 head = (struct ppc_dyn_relocs **) vpp;
65f38f15 5425 }
ec338859
AM
5426
5427 p = *head;
5428 if (p == NULL || p->sec != sec)
5429 {
4ce794b7 5430 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 5431 if (p == NULL)
b34976b6 5432 return FALSE;
ec338859
AM
5433 p->next = *head;
5434 *head = p;
5435 p->sec = sec;
5436 p->count = 0;
5437 p->pc_count = 0;
5438 }
5439
5440 p->count += 1;
1d483afe 5441 if (!must_be_dyn_reloc (info, r_type))
ec338859 5442 p->pc_count += 1;
65f38f15 5443 }
5bd4f169 5444 break;
65f38f15
AM
5445
5446 default:
96e0dda4 5447 break;
5bd4f169
AM
5448 }
5449 }
5450
b34976b6 5451 return TRUE;
5bd4f169
AM
5452}
5453
8387904d
AM
5454/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
5455 of the code entry point, and its section. */
5456
5457static bfd_vma
5458opd_entry_value (asection *opd_sec,
5459 bfd_vma offset,
5460 asection **code_sec,
5461 bfd_vma *code_off)
5462{
5463 bfd *opd_bfd = opd_sec->owner;
8860955f 5464 Elf_Internal_Rela *relocs;
8387904d 5465 Elf_Internal_Rela *lo, *hi, *look;
645ea6a9 5466 bfd_vma val;
8387904d 5467
4b85d634
AM
5468 /* No relocs implies we are linking a --just-symbols object. */
5469 if (opd_sec->reloc_count == 0)
5470 {
4b85d634
AM
5471 if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8))
5472 return (bfd_vma) -1;
3b36f7e6 5473
4b85d634
AM
5474 if (code_sec != NULL)
5475 {
5476 asection *sec, *likely = NULL;
5477 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
5478 if (sec->vma <= val
5479 && (sec->flags & SEC_LOAD) != 0
5480 && (sec->flags & SEC_ALLOC) != 0)
5481 likely = sec;
5482 if (likely != NULL)
5483 {
5484 *code_sec = likely;
5485 if (code_off != NULL)
5486 *code_off = val - likely->vma;
5487 }
5488 }
5489 return val;
5490 }
5491
0c8d6e5c 5492 BFD_ASSERT (is_ppc64_elf (opd_bfd));
0ffa91dd 5493
8860955f
AM
5494 relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
5495 if (relocs == NULL)
5496 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
645ea6a9 5497
8387904d 5498 /* Go find the opd reloc at the sym address. */
8860955f 5499 lo = relocs;
8387904d
AM
5500 BFD_ASSERT (lo != NULL);
5501 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
645ea6a9 5502 val = (bfd_vma) -1;
8387904d
AM
5503 while (lo < hi)
5504 {
5505 look = lo + (hi - lo) / 2;
5506 if (look->r_offset < offset)
5507 lo = look + 1;
5508 else if (look->r_offset > offset)
5509 hi = look;
5510 else
5511 {
0ffa91dd
NC
5512 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd);
5513
8387904d
AM
5514 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
5515 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
5516 {
5517 unsigned long symndx = ELF64_R_SYM (look->r_info);
8387904d
AM
5518 asection *sec;
5519
5520 if (symndx < symtab_hdr->sh_info)
5521 {
5522 Elf_Internal_Sym *sym;
5523
5524 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
5525 if (sym == NULL)
5526 {
5527 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
5528 symtab_hdr->sh_info,
5529 0, NULL, NULL, NULL);
5530 if (sym == NULL)
645ea6a9 5531 break;
8387904d
AM
5532 symtab_hdr->contents = (bfd_byte *) sym;
5533 }
5534
5535 sym += symndx;
5536 val = sym->st_value;
cb33740c 5537 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
8387904d
AM
5538 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
5539 }
5540 else
5541 {
5542 struct elf_link_hash_entry **sym_hashes;
5543 struct elf_link_hash_entry *rh;
5544
5545 sym_hashes = elf_sym_hashes (opd_bfd);
5546 rh = sym_hashes[symndx - symtab_hdr->sh_info];
b31867b6 5547 rh = elf_follow_link (rh);
8387904d
AM
5548 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
5549 || rh->root.type == bfd_link_hash_defweak);
5550 val = rh->root.u.def.value;
5551 sec = rh->root.u.def.section;
5552 }
5553 val += look->r_addend;
5554 if (code_off != NULL)
5555 *code_off = val;
5556 if (code_sec != NULL)
5557 *code_sec = sec;
5558 if (sec != NULL && sec->output_section != NULL)
5559 val += sec->output_section->vma + sec->output_offset;
8387904d
AM
5560 }
5561 break;
5562 }
5563 }
645ea6a9 5564
645ea6a9 5565 return val;
8387904d
AM
5566}
5567
b31867b6
AM
5568/* If FDH is a function descriptor symbol, return the associated code
5569 entry symbol if it is defined. Return NULL otherwise. */
5570
5571static struct ppc_link_hash_entry *
5572defined_code_entry (struct ppc_link_hash_entry *fdh)
5573{
5574 if (fdh->is_func_descriptor)
5575 {
5576 struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh);
5577 if (fh->elf.root.type == bfd_link_hash_defined
5578 || fh->elf.root.type == bfd_link_hash_defweak)
5579 return fh;
5580 }
5581 return NULL;
5582}
5583
5584/* If FH is a function code entry symbol, return the associated
5585 function descriptor symbol if it is defined. Return NULL otherwise. */
5586
5587static struct ppc_link_hash_entry *
5588defined_func_desc (struct ppc_link_hash_entry *fh)
5589{
5590 if (fh->oh != NULL
5591 && fh->oh->is_func_descriptor)
5592 {
5593 struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh);
5594 if (fdh->elf.root.type == bfd_link_hash_defined
5595 || fdh->elf.root.type == bfd_link_hash_defweak)
5596 return fdh;
5597 }
5598 return NULL;
5599}
5600
74f0fb50
AM
5601/* Mark all our entry sym sections, both opd and code section. */
5602
5603static void
5604ppc64_elf_gc_keep (struct bfd_link_info *info)
5605{
5606 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5607 struct bfd_sym_chain *sym;
5608
4dfe6ac6
NC
5609 if (htab == NULL)
5610 return;
5611
74f0fb50
AM
5612 for (sym = info->gc_sym_list; sym != NULL; sym = sym->next)
5613 {
b31867b6 5614 struct ppc_link_hash_entry *eh, *fh;
74f0fb50
AM
5615 asection *sec;
5616
5617 eh = (struct ppc_link_hash_entry *)
b31867b6 5618 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE);
74f0fb50
AM
5619 if (eh == NULL)
5620 continue;
5621 if (eh->elf.root.type != bfd_link_hash_defined
5622 && eh->elf.root.type != bfd_link_hash_defweak)
5623 continue;
5624
b31867b6
AM
5625 fh = defined_code_entry (eh);
5626 if (fh != NULL)
74f0fb50 5627 {
b31867b6 5628 sec = fh->elf.root.u.def.section;
74f0fb50
AM
5629 sec->flags |= SEC_KEEP;
5630 }
5631 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5632 && opd_entry_value (eh->elf.root.u.def.section,
5633 eh->elf.root.u.def.value,
5634 &sec, NULL) != (bfd_vma) -1)
5635 sec->flags |= SEC_KEEP;
5636
5637 sec = eh->elf.root.u.def.section;
5638 sec->flags |= SEC_KEEP;
5639 }
5640}
5641
64d03ab5
AM
5642/* Mark sections containing dynamically referenced symbols. When
5643 building shared libraries, we must assume that any visible symbol is
5644 referenced. */
5645
5646static bfd_boolean
5647ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf)
5648{
5649 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5650 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
b31867b6 5651 struct ppc_link_hash_entry *fdh;
64d03ab5
AM
5652
5653 if (eh->elf.root.type == bfd_link_hash_warning)
5654 eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link;
5655
5656 /* Dynamic linking info is on the func descriptor sym. */
b31867b6
AM
5657 fdh = defined_func_desc (eh);
5658 if (fdh != NULL)
5659 eh = fdh;
64d03ab5
AM
5660
5661 if ((eh->elf.root.type == bfd_link_hash_defined
5662 || eh->elf.root.type == bfd_link_hash_defweak)
5663 && (eh->elf.ref_dynamic
5664 || (!info->executable
5665 && eh->elf.def_regular
5666 && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL
5667 && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN)))
5668 {
5669 asection *code_sec;
b31867b6 5670 struct ppc_link_hash_entry *fh;
64d03ab5
AM
5671
5672 eh->elf.root.u.def.section->flags |= SEC_KEEP;
5673
5674 /* Function descriptor syms cause the associated
5675 function code sym section to be marked. */
b31867b6
AM
5676 fh = defined_code_entry (eh);
5677 if (fh != NULL)
5678 {
5679 code_sec = fh->elf.root.u.def.section;
5680 code_sec->flags |= SEC_KEEP;
5681 }
64d03ab5
AM
5682 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5683 && opd_entry_value (eh->elf.root.u.def.section,
5684 eh->elf.root.u.def.value,
5685 &code_sec, NULL) != (bfd_vma) -1)
5686 code_sec->flags |= SEC_KEEP;
5687 }
5688
5689 return TRUE;
5690}
5691
5bd4f169
AM
5692/* Return the section that should be marked against GC for a given
5693 relocation. */
5694
5695static asection *
4ce794b7 5696ppc64_elf_gc_mark_hook (asection *sec,
fb34365b 5697 struct bfd_link_info *info,
4ce794b7
AM
5698 Elf_Internal_Rela *rel,
5699 struct elf_link_hash_entry *h,
5700 Elf_Internal_Sym *sym)
5bd4f169 5701{
ccfa59ea
AM
5702 asection *rsec;
5703
ccfa59ea
AM
5704 /* Syms return NULL if we're marking .opd, so we avoid marking all
5705 function sections, as all functions are referenced in .opd. */
5706 rsec = NULL;
5707 if (get_opd_info (sec) != NULL)
5708 return rsec;
1e2f5b6e 5709
5bd4f169
AM
5710 if (h != NULL)
5711 {
04c9666a 5712 enum elf_ppc64_reloc_type r_type;
b31867b6 5713 struct ppc_link_hash_entry *eh, *fh, *fdh;
a33d1f77 5714
4ce794b7 5715 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 5716 switch (r_type)
5bd4f169
AM
5717 {
5718 case R_PPC64_GNU_VTINHERIT:
5719 case R_PPC64_GNU_VTENTRY:
5720 break;
5721
5722 default:
5723 switch (h->root.type)
5724 {
5725 case bfd_link_hash_defined:
5726 case bfd_link_hash_defweak:
ccfa59ea 5727 eh = (struct ppc_link_hash_entry *) h;
b31867b6
AM
5728 fdh = defined_func_desc (eh);
5729 if (fdh != NULL)
5730 eh = fdh;
1e2f5b6e
AM
5731
5732 /* Function descriptor syms cause the associated
5733 function code sym section to be marked. */
b31867b6
AM
5734 fh = defined_code_entry (eh);
5735 if (fh != NULL)
ccfa59ea
AM
5736 {
5737 /* They also mark their opd section. */
74f0fb50 5738 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 5739
b31867b6 5740 rsec = fh->elf.root.u.def.section;
ccfa59ea 5741 }
8387904d
AM
5742 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5743 && opd_entry_value (eh->elf.root.u.def.section,
5744 eh->elf.root.u.def.value,
5745 &rsec, NULL) != (bfd_vma) -1)
74f0fb50 5746 eh->elf.root.u.def.section->gc_mark = 1;
ccfa59ea 5747 else
1e2f5b6e
AM
5748 rsec = h->root.u.def.section;
5749 break;
5bd4f169
AM
5750
5751 case bfd_link_hash_common:
1e2f5b6e
AM
5752 rsec = h->root.u.c.p->section;
5753 break;
5bd4f169
AM
5754
5755 default:
fb34365b 5756 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5bd4f169
AM
5757 }
5758 }
5759 }
5760 else
5761 {
74f0fb50 5762 struct _opd_sec_data *opd;
1e2f5b6e
AM
5763
5764 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
74f0fb50
AM
5765 opd = get_opd_info (rsec);
5766 if (opd != NULL && opd->func_sec != NULL)
ccfa59ea 5767 {
74f0fb50 5768 rsec->gc_mark = 1;
ccfa59ea 5769
74f0fb50 5770 rsec = opd->func_sec[(sym->st_value + rel->r_addend) / 8];
ccfa59ea 5771 }
5bd4f169
AM
5772 }
5773
1e2f5b6e 5774 return rsec;
5bd4f169
AM
5775}
5776
65f38f15
AM
5777/* Update the .got, .plt. and dynamic reloc reference counts for the
5778 section being removed. */
5bd4f169 5779
b34976b6 5780static bfd_boolean
4ce794b7
AM
5781ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5782 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 5783{
411e1bfb 5784 struct ppc_link_hash_table *htab;
5bd4f169
AM
5785 Elf_Internal_Shdr *symtab_hdr;
5786 struct elf_link_hash_entry **sym_hashes;
411e1bfb 5787 struct got_entry **local_got_ents;
5bd4f169 5788 const Elf_Internal_Rela *rel, *relend;
5bd4f169 5789
7dda2462
TG
5790 if (info->relocatable)
5791 return TRUE;
5792
680a3378
AM
5793 if ((sec->flags & SEC_ALLOC) == 0)
5794 return TRUE;
5795
ec338859
AM
5796 elf_section_data (sec)->local_dynrel = NULL;
5797
411e1bfb 5798 htab = ppc_hash_table (info);
4dfe6ac6
NC
5799 if (htab == NULL)
5800 return FALSE;
5801
0ffa91dd 5802 symtab_hdr = &elf_symtab_hdr (abfd);
5bd4f169 5803 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 5804 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM
5805
5806 relend = relocs + sec->reloc_count;
5807 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM
5808 {
5809 unsigned long r_symndx;
04c9666a 5810 enum elf_ppc64_reloc_type r_type;
58ac9f71 5811 struct elf_link_hash_entry *h = NULL;
f961d9dd 5812 unsigned char tls_type = 0;
5bd4f169 5813
a33d1f77 5814 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 5815 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM
5816 if (r_symndx >= symtab_hdr->sh_info)
5817 {
5818 struct ppc_link_hash_entry *eh;
5819 struct ppc_dyn_relocs **pp;
5820 struct ppc_dyn_relocs *p;
5821
5822 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 5823 h = elf_follow_link (h);
58ac9f71
AM
5824 eh = (struct ppc_link_hash_entry *) h;
5825
5826 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5827 if (p->sec == sec)
5828 {
5829 /* Everything must go for SEC. */
5830 *pp = p->next;
5831 break;
5832 }
5833 }
5834
e054468f
AM
5835 if (is_branch_reloc (r_type))
5836 {
5837 struct plt_entry **ifunc = NULL;
5838 if (h != NULL)
5839 {
5840 if (h->type == STT_GNU_IFUNC)
5841 ifunc = &h->plt.plist;
5842 }
5843 else if (local_got_ents != NULL)
5844 {
5845 struct plt_entry **local_plt = (struct plt_entry **)
5846 (local_got_ents + symtab_hdr->sh_info);
f961d9dd 5847 unsigned char *local_got_tls_masks = (unsigned char *)
e054468f
AM
5848 (local_plt + symtab_hdr->sh_info);
5849 if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
5850 ifunc = local_plt + r_symndx;
5851 }
5852 if (ifunc != NULL)
5853 {
5854 struct plt_entry *ent;
5855
5856 for (ent = *ifunc; ent != NULL; ent = ent->next)
5857 if (ent->addend == rel->r_addend)
5858 break;
5859 if (ent == NULL)
5860 abort ();
5861 if (ent->plt.refcount > 0)
5862 ent->plt.refcount -= 1;
5863 continue;
5864 }
5865 }
5866
a33d1f77
AM
5867 switch (r_type)
5868 {
411e1bfb
AM
5869 case R_PPC64_GOT_TLSLD16:
5870 case R_PPC64_GOT_TLSLD16_LO:
5871 case R_PPC64_GOT_TLSLD16_HI:
5872 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 5873 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
5874 goto dogot;
5875
5876 case R_PPC64_GOT_TLSGD16:
5877 case R_PPC64_GOT_TLSGD16_LO:
5878 case R_PPC64_GOT_TLSGD16_HI:
5879 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5880 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
5881 goto dogot;
5882
5883 case R_PPC64_GOT_TPREL16_DS:
5884 case R_PPC64_GOT_TPREL16_LO_DS:
5885 case R_PPC64_GOT_TPREL16_HI:
5886 case R_PPC64_GOT_TPREL16_HA:
5887 tls_type = TLS_TLS | TLS_TPREL;
5888 goto dogot;
5889
5890 case R_PPC64_GOT_DTPREL16_DS:
5891 case R_PPC64_GOT_DTPREL16_LO_DS:
5892 case R_PPC64_GOT_DTPREL16_HI:
5893 case R_PPC64_GOT_DTPREL16_HA:
5894 tls_type = TLS_TLS | TLS_DTPREL;
5895 goto dogot;
5896
a33d1f77
AM
5897 case R_PPC64_GOT16:
5898 case R_PPC64_GOT16_DS:
5899 case R_PPC64_GOT16_HA:
5900 case R_PPC64_GOT16_HI:
5901 case R_PPC64_GOT16_LO:
5902 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM
5903 dogot:
5904 {
5905 struct got_entry *ent;
5906
58ac9f71
AM
5907 if (h != NULL)
5908 ent = h->got.glist;
411e1bfb
AM
5909 else
5910 ent = local_got_ents[r_symndx];
5911
5912 for (; ent != NULL; ent = ent->next)
5913 if (ent->addend == rel->r_addend
e717da7e 5914 && ent->owner == abfd
411e1bfb
AM
5915 && ent->tls_type == tls_type)
5916 break;
5917 if (ent == NULL)
5918 abort ();
5919 if (ent->got.refcount > 0)
5920 ent->got.refcount -= 1;
5921 }
a33d1f77 5922 break;
65f38f15 5923
a33d1f77
AM
5924 case R_PPC64_PLT16_HA:
5925 case R_PPC64_PLT16_HI:
5926 case R_PPC64_PLT16_LO:
5927 case R_PPC64_PLT32:
5928 case R_PPC64_PLT64:
721956f4
AM
5929 case R_PPC64_REL14:
5930 case R_PPC64_REL14_BRNTAKEN:
5931 case R_PPC64_REL14_BRTAKEN:
5d1634d7 5932 case R_PPC64_REL24:
58ac9f71 5933 if (h != NULL)
5d1634d7 5934 {
411e1bfb
AM
5935 struct plt_entry *ent;
5936
411e1bfb
AM
5937 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5938 if (ent->addend == rel->r_addend)
5939 break;
7c6c1722 5940 if (ent != NULL && ent->plt.refcount > 0)
411e1bfb 5941 ent->plt.refcount -= 1;
5d1634d7 5942 }
e86ce104 5943 break;
5d1634d7 5944
a33d1f77
AM
5945 default:
5946 break;
5947 }
5948 }
b34976b6 5949 return TRUE;
5bd4f169
AM
5950}
5951
deb0e272
AM
5952/* The maximum size of .sfpr. */
5953#define SFPR_MAX (218*4)
5954
5955struct sfpr_def_parms
5956{
699733f6
AM
5957 const char name[12];
5958 unsigned char lo, hi;
deb0e272
AM
5959 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
5960 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
5961};
5962
5963/* Auto-generate _save*, _rest* functions in .sfpr. */
5964
4dfe6ac6 5965static bfd_boolean
deb0e272
AM
5966sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
5967{
5968 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5969 unsigned int i;
5970 size_t len = strlen (parm->name);
5971 bfd_boolean writing = FALSE;
699733f6 5972 char sym[16];
deb0e272 5973
4dfe6ac6
NC
5974 if (htab == NULL)
5975 return FALSE;
5976
deb0e272
AM
5977 memcpy (sym, parm->name, len);
5978 sym[len + 2] = 0;
5979
5980 for (i = parm->lo; i <= parm->hi; i++)
5981 {
5982 struct elf_link_hash_entry *h;
5983
5984 sym[len + 0] = i / 10 + '0';
5985 sym[len + 1] = i % 10 + '0';
5986 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
5987 if (h != NULL
f5385ebf 5988 && !h->def_regular)
deb0e272
AM
5989 {
5990 h->root.type = bfd_link_hash_defined;
5991 h->root.u.def.section = htab->sfpr;
5992 h->root.u.def.value = htab->sfpr->size;
5993 h->type = STT_FUNC;
f5385ebf 5994 h->def_regular = 1;
deb0e272
AM
5995 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
5996 writing = TRUE;
5997 if (htab->sfpr->contents == NULL)
5998 {
5999 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
6000 if (htab->sfpr->contents == NULL)
6001 return FALSE;
6002 }
6003 }
6004 if (writing)
6005 {
6006 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
6007 if (i != parm->hi)
6008 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
6009 else
6010 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
6011 htab->sfpr->size = p - htab->sfpr->contents;
6012 }
6013 }
6014
6015 return TRUE;
6016}
6017
6018static bfd_byte *
6019savegpr0 (bfd *abfd, bfd_byte *p, int r)
6020{
6021 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6022 return p + 4;
6023}
6024
6025static bfd_byte *
6026savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
6027{
6028 p = savegpr0 (abfd, p, r);
6029 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
6030 p = p + 4;
6031 bfd_put_32 (abfd, BLR, p);
6032 return p + 4;
6033}
6034
6035static bfd_byte *
6036restgpr0 (bfd *abfd, bfd_byte *p, int r)
6037{
6038 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6039 return p + 4;
6040}
6041
6042static bfd_byte *
6043restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
6044{
6045 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
6046 p = p + 4;
6047 p = restgpr0 (abfd, p, r);
6048 bfd_put_32 (abfd, MTLR_R0, p);
6049 p = p + 4;
6050 if (r == 29)
6051 {
6052 p = restgpr0 (abfd, p, 30);
6053 p = restgpr0 (abfd, p, 31);
6054 }
6055 bfd_put_32 (abfd, BLR, p);
6056 return p + 4;
6057}
6058
6059static bfd_byte *
6060savegpr1 (bfd *abfd, bfd_byte *p, int r)
6061{
6062 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6063 return p + 4;
6064}
6065
6066static bfd_byte *
6067savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
6068{
6069 p = savegpr1 (abfd, p, r);
6070 bfd_put_32 (abfd, BLR, p);
6071 return p + 4;
6072}
6073
6074static bfd_byte *
6075restgpr1 (bfd *abfd, bfd_byte *p, int r)
6076{
6077 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6078 return p + 4;
6079}
6080
6081static bfd_byte *
6082restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
6083{
6084 p = restgpr1 (abfd, p, r);
6085 bfd_put_32 (abfd, BLR, p);
6086 return p + 4;
6087}
6088
6089static bfd_byte *
6090savefpr (bfd *abfd, bfd_byte *p, int r)
6091{
6092 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6093 return p + 4;
6094}
6095
6096static bfd_byte *
6097savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
6098{
6099 p = savefpr (abfd, p, r);
6100 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
6101 p = p + 4;
6102 bfd_put_32 (abfd, BLR, p);
6103 return p + 4;
6104}
6105
6106static bfd_byte *
6107restfpr (bfd *abfd, bfd_byte *p, int r)
6108{
6109 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
6110 return p + 4;
6111}
6112
6113static bfd_byte *
6114restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
6115{
6116 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
6117 p = p + 4;
6118 p = restfpr (abfd, p, r);
6119 bfd_put_32 (abfd, MTLR_R0, p);
6120 p = p + 4;
6121 if (r == 29)
6122 {
6123 p = restfpr (abfd, p, 30);
6124 p = restfpr (abfd, p, 31);
6125 }
6126 bfd_put_32 (abfd, BLR, p);
6127 return p + 4;
6128}
6129
6130static bfd_byte *
6131savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
6132{
6133 p = savefpr (abfd, p, r);
6134 bfd_put_32 (abfd, BLR, p);
6135 return p + 4;
6136}
6137
6138static bfd_byte *
6139restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
6140{
6141 p = restfpr (abfd, p, r);
6142 bfd_put_32 (abfd, BLR, p);
6143 return p + 4;
6144}
6145
6146static bfd_byte *
6147savevr (bfd *abfd, bfd_byte *p, int r)
6148{
6149 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6150 p = p + 4;
6151 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
6152 return p + 4;
6153}
6154
6155static bfd_byte *
6156savevr_tail (bfd *abfd, bfd_byte *p, int r)
6157{
6158 p = savevr (abfd, p, r);
6159 bfd_put_32 (abfd, BLR, p);
6160 return p + 4;
6161}
6162
6163static bfd_byte *
6164restvr (bfd *abfd, bfd_byte *p, int r)
6165{
6166 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
6167 p = p + 4;
6168 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
6169 return p + 4;
6170}
6171
6172static bfd_byte *
6173restvr_tail (bfd *abfd, bfd_byte *p, int r)
6174{
6175 p = restvr (abfd, p, r);
6176 bfd_put_32 (abfd, BLR, p);
6177 return p + 4;
6178}
6179
e86ce104
AM
6180/* Called via elf_link_hash_traverse to transfer dynamic linking
6181 information on function code symbol entries to their corresponding
6182 function descriptor symbol entries. */
deb0e272 6183
b34976b6 6184static bfd_boolean
4ce794b7 6185func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 6186{
e86ce104 6187 struct bfd_link_info *info;
65f38f15 6188 struct ppc_link_hash_table *htab;
411e1bfb 6189 struct plt_entry *ent;
50bc7936
AM
6190 struct ppc_link_hash_entry *fh;
6191 struct ppc_link_hash_entry *fdh;
6192 bfd_boolean force_local;
5bd4f169 6193
50bc7936
AM
6194 fh = (struct ppc_link_hash_entry *) h;
6195 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 6196 return TRUE;
e86ce104 6197
50bc7936
AM
6198 if (fh->elf.root.type == bfd_link_hash_warning)
6199 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 6200
4ce794b7 6201 info = inf;
65f38f15 6202 htab = ppc_hash_table (info);
4dfe6ac6
NC
6203 if (htab == NULL)
6204 return FALSE;
5bd4f169 6205
c09bdfe5
AM
6206 /* Resolve undefined references to dot-symbols as the value
6207 in the function descriptor, if we have one in a regular object.
6208 This is to satisfy cases like ".quad .foo". Calls to functions
6209 in dynamic objects are handled elsewhere. */
6210 if (fh->elf.root.type == bfd_link_hash_undefweak
6211 && fh->was_undefined
b31867b6
AM
6212 && (fdh = defined_func_desc (fh)) != NULL
6213 && get_opd_info (fdh->elf.root.u.def.section) != NULL
6214 && opd_entry_value (fdh->elf.root.u.def.section,
6215 fdh->elf.root.u.def.value,
c09bdfe5
AM
6216 &fh->elf.root.u.def.section,
6217 &fh->elf.root.u.def.value) != (bfd_vma) -1)
6218 {
b31867b6 6219 fh->elf.root.type = fdh->elf.root.type;
f5385ebf 6220 fh->elf.forced_local = 1;
b31867b6
AM
6221 fh->elf.def_regular = fdh->elf.def_regular;
6222 fh->elf.def_dynamic = fdh->elf.def_dynamic;
c09bdfe5
AM
6223 }
6224
e86ce104
AM
6225 /* If this is a function code symbol, transfer dynamic linking
6226 information to the function descriptor symbol. */
50bc7936 6227 if (!fh->is_func)
b34976b6 6228 return TRUE;
e86ce104 6229
50bc7936 6230 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM
6231 if (ent->plt.refcount > 0)
6232 break;
50bc7936
AM
6233 if (ent == NULL
6234 || fh->elf.root.root.string[0] != '.'
6235 || fh->elf.root.root.string[1] == '\0')
6236 return TRUE;
5bd4f169 6237
50bc7936
AM
6238 /* Find the corresponding function descriptor symbol. Create it
6239 as undefined if necessary. */
5bd4f169 6240
b31867b6 6241 fdh = lookup_fdh (fh, htab);
50bc7936 6242 if (fdh == NULL
df131623 6243 && !info->executable
50bc7936
AM
6244 && (fh->elf.root.type == bfd_link_hash_undefined
6245 || fh->elf.root.type == bfd_link_hash_undefweak))
6246 {
908b32fc 6247 fdh = make_fdh (info, fh);
bb700d78
AM
6248 if (fdh == NULL)
6249 return FALSE;
50bc7936 6250 }
648cca2c 6251
908b32fc 6252 /* Fake function descriptors are made undefweak. If the function
433817dd
AM
6253 code symbol is strong undefined, make the fake sym the same.
6254 If the function code symbol is defined, then force the fake
6255 descriptor local; We can't support overriding of symbols in a
6256 shared library on a fake descriptor. */
908b32fc
AM
6257
6258 if (fdh != NULL
6259 && fdh->fake
433817dd 6260 && fdh->elf.root.type == bfd_link_hash_undefweak)
908b32fc 6261 {
433817dd
AM
6262 if (fh->elf.root.type == bfd_link_hash_undefined)
6263 {
6264 fdh->elf.root.type = bfd_link_hash_undefined;
6265 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
6266 }
6267 else if (fh->elf.root.type == bfd_link_hash_defined
6268 || fh->elf.root.type == bfd_link_hash_defweak)
6269 {
6270 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
6271 }
908b32fc
AM
6272 }
6273
50bc7936 6274 if (fdh != NULL
f5385ebf 6275 && !fdh->elf.forced_local
df131623 6276 && (!info->executable
f5385ebf
AM
6277 || fdh->elf.def_dynamic
6278 || fdh->elf.ref_dynamic
50bc7936
AM
6279 || (fdh->elf.root.type == bfd_link_hash_undefweak
6280 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
6281 {
6282 if (fdh->elf.dynindx == -1)
c152c796 6283 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936 6284 return FALSE;
f5385ebf
AM
6285 fdh->elf.ref_regular |= fh->elf.ref_regular;
6286 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
6287 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
6288 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
50bc7936 6289 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 6290 {
40d16e0b 6291 move_plt_plist (fh, fdh);
f5385ebf 6292 fdh->elf.needs_plt = 1;
e86ce104 6293 }
50bc7936 6294 fdh->is_func_descriptor = 1;
34814b9f
AM
6295 fdh->oh = fh;
6296 fh->oh = fdh;
e86ce104
AM
6297 }
6298
50bc7936
AM
6299 /* Now that the info is on the function descriptor, clear the
6300 function code sym info. Any function code syms for which we
6301 don't have a definition in a regular file, we force local.
6302 This prevents a shared library from exporting syms that have
6303 been imported from another library. Function code syms that
6304 are really in the library we must leave global to prevent the
6305 linker dragging in a definition from a static library. */
93f3fa99
AM
6306 force_local = (!fh->elf.def_regular
6307 || fdh == NULL
6308 || !fdh->elf.def_regular
6309 || fdh->elf.forced_local);
50bc7936
AM
6310 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
6311
b34976b6 6312 return TRUE;
e86ce104 6313}
40b8271b 6314
e86ce104 6315/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM
6316 this hook to a) provide some gcc support functions, and b) transfer
6317 dynamic linking information gathered so far on function code symbol
6318 entries, to their corresponding function descriptor symbol entries. */
deb0e272 6319
b34976b6 6320static bfd_boolean
4ce794b7
AM
6321ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
6322 struct bfd_link_info *info)
e86ce104
AM
6323{
6324 struct ppc_link_hash_table *htab;
82bd7b59 6325 unsigned int i;
deb0e272
AM
6326 const struct sfpr_def_parms funcs[] =
6327 {
6328 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
6329 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
6330 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
6331 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
6332 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
6333 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
6334 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
6335 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
6336 { "._savef", 14, 31, savefpr, savefpr1_tail },
6337 { "._restf", 14, 31, restfpr, restfpr1_tail },
6338 { "_savevr_", 20, 31, savevr, savevr_tail },
6339 { "_restvr_", 20, 31, restvr, restvr_tail }
6340 };
e86ce104
AM
6341
6342 htab = ppc_hash_table (info);
4dfe6ac6
NC
6343 if (htab == NULL)
6344 return FALSE;
6345
82bd7b59
AM
6346 if (htab->sfpr == NULL)
6347 /* We don't have any relocs. */
b34976b6 6348 return TRUE;
82bd7b59 6349
deb0e272
AM
6350 /* Provide any missing _save* and _rest* functions. */
6351 htab->sfpr->size = 0;
6352 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
6353 if (!sfpr_define (info, &funcs[i]))
6354 return FALSE;
82bd7b59 6355
4ce794b7 6356 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 6357
eea6121a 6358 if (htab->sfpr->size == 0)
8423293d 6359 htab->sfpr->flags |= SEC_EXCLUDE;
82bd7b59 6360
b34976b6 6361 return TRUE;
e86ce104
AM
6362}
6363
6364/* Adjust a symbol defined by a dynamic object and referenced by a
6365 regular object. The current definition is in some section of the
6366 dynamic object, but we're not including those sections. We have to
6367 change the definition to something the rest of the link can
6368 understand. */
6369
b34976b6 6370static bfd_boolean
4ce794b7
AM
6371ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
6372 struct elf_link_hash_entry *h)
e86ce104
AM
6373{
6374 struct ppc_link_hash_table *htab;
e86ce104 6375 asection *s;
e86ce104
AM
6376
6377 htab = ppc_hash_table (info);
4dfe6ac6
NC
6378 if (htab == NULL)
6379 return FALSE;
e86ce104
AM
6380
6381 /* Deal with function syms. */
6382 if (h->type == STT_FUNC
e054468f 6383 || h->type == STT_GNU_IFUNC
f5385ebf 6384 || h->needs_plt)
e86ce104
AM
6385 {
6386 /* Clear procedure linkage table information for any symbol that
6387 won't need a .plt entry. */
411e1bfb
AM
6388 struct plt_entry *ent;
6389 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
6390 if (ent->plt.refcount > 0)
6391 break;
8387904d 6392 if (ent == NULL
e054468f
AM
6393 || (h->type != STT_GNU_IFUNC
6394 && (SYMBOL_CALLS_LOCAL (info, h)
6395 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
6396 && h->root.type == bfd_link_hash_undefweak))))
40b8271b 6397 {
411e1bfb 6398 h->plt.plist = NULL;
f5385ebf 6399 h->needs_plt = 0;
40b8271b 6400 }
5bd4f169 6401 }
bbd7ec4a 6402 else
411e1bfb 6403 h->plt.plist = NULL;
5bd4f169
AM
6404
6405 /* If this is a weak symbol, and there is a real definition, the
6406 processor independent code will have arranged for us to see the
6407 real definition first, and we can just use the same value. */
f6e332e6 6408 if (h->u.weakdef != NULL)
5bd4f169 6409 {
f6e332e6
AM
6410 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
6411 || h->u.weakdef->root.type == bfd_link_hash_defweak);
6412 h->root.u.def.section = h->u.weakdef->root.u.def.section;
6413 h->root.u.def.value = h->u.weakdef->root.u.def.value;
a23b6845 6414 if (ELIMINATE_COPY_RELOCS)
f6e332e6 6415 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 6416 return TRUE;
5bd4f169
AM
6417 }
6418
5bd4f169
AM
6419 /* If we are creating a shared library, we must presume that the
6420 only references to the symbol are via the global offset table.
6421 For such cases we need not do anything here; the relocations will
6422 be handled correctly by relocate_section. */
6423 if (info->shared)
b34976b6 6424 return TRUE;
5bd4f169 6425
65f38f15
AM
6426 /* If there are no references to this symbol that do not use the
6427 GOT, we don't need to generate a copy reloc. */
f5385ebf 6428 if (!h->non_got_ref)
b34976b6 6429 return TRUE;
65f38f15 6430
b186458a
JJ
6431 /* Don't generate a copy reloc for symbols defined in the executable. */
6432 if (!h->def_dynamic || !h->ref_regular || h->def_regular)
6433 return TRUE;
6434
f4656909 6435 if (ELIMINATE_COPY_RELOCS)
65f38f15 6436 {
f4656909
AM
6437 struct ppc_link_hash_entry * eh;
6438 struct ppc_dyn_relocs *p;
65f38f15 6439
f4656909
AM
6440 eh = (struct ppc_link_hash_entry *) h;
6441 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6442 {
6443 s = p->sec->output_section;
6444 if (s != NULL && (s->flags & SEC_READONLY) != 0)
6445 break;
6446 }
6447
6448 /* If we didn't find any dynamic relocs in read-only sections, then
6449 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
6450 if (p == NULL)
6451 {
f5385ebf 6452 h->non_got_ref = 0;
f4656909
AM
6453 return TRUE;
6454 }
65f38f15
AM
6455 }
6456
5d35169e 6457 if (h->plt.plist != NULL)
97b639ba
AM
6458 {
6459 /* We should never get here, but unfortunately there are versions
6460 of gcc out there that improperly (for this ABI) put initialized
6461 function pointers, vtable refs and suchlike in read-only
6462 sections. Allow them to proceed, but warn that this might
6463 break at runtime. */
6464 (*_bfd_error_handler)
6465 (_("copy reloc against `%s' requires lazy plt linking; "
6466 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
6467 h->root.root.string);
6468 }
5d35169e
AM
6469
6470 /* This is a reference to a symbol defined by a dynamic object which
6471 is not a function. */
6472
909272ee
AM
6473 if (h->size == 0)
6474 {
6475 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
6476 h->root.root.string);
6477 return TRUE;
6478 }
6479
5bd4f169
AM
6480 /* We must allocate the symbol in our .dynbss section, which will
6481 become part of the .bss section of the executable. There will be
6482 an entry for this symbol in the .dynsym section. The dynamic
6483 object will contain position independent code, so all references
6484 from the dynamic object to this symbol will go through the global
6485 offset table. The dynamic linker will use the .dynsym entry to
6486 determine the address it must put in the global offset table, so
6487 both the dynamic object and the regular object will refer to the
6488 same memory location for the variable. */
5bd4f169 6489
04c9666a
AM
6490 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
6491 to copy the initial value out of the dynamic object and into the
5bd4f169
AM
6492 runtime process image. We need to remember the offset into the
6493 .rela.bss section we are going to use. */
6494 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
6495 {
eea6121a 6496 htab->relbss->size += sizeof (Elf64_External_Rela);
f5385ebf 6497 h->needs_copy = 1;
5bd4f169
AM
6498 }
6499
4ce794b7 6500 s = htab->dynbss;
5bd4f169 6501
027297b7 6502 return _bfd_elf_adjust_dynamic_copy (h, s);
5bd4f169
AM
6503}
6504
e86ce104
AM
6505/* If given a function descriptor symbol, hide both the function code
6506 sym and the descriptor. */
6507static void
4ce794b7
AM
6508ppc64_elf_hide_symbol (struct bfd_link_info *info,
6509 struct elf_link_hash_entry *h,
6510 bfd_boolean force_local)
e86ce104 6511{
34814b9f 6512 struct ppc_link_hash_entry *eh;
e86ce104
AM
6513 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
6514
34814b9f
AM
6515 eh = (struct ppc_link_hash_entry *) h;
6516 if (eh->is_func_descriptor)
e86ce104 6517 {
34814b9f 6518 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 6519
721956f4 6520 if (fh == NULL)
d1329ca3
AM
6521 {
6522 const char *p, *q;
6523 struct ppc_link_hash_table *htab;
6524 char save;
6525
6526 /* We aren't supposed to use alloca in BFD because on
6527 systems which do not have alloca the version in libiberty
6528 calls xmalloc, which might cause the program to crash
6529 when it runs out of memory. This function doesn't have a
6530 return status, so there's no way to gracefully return an
6531 error. So cheat. We know that string[-1] can be safely
34814b9f
AM
6532 accessed; It's either a string in an ELF string table,
6533 or allocated in an objalloc structure. */
d1329ca3 6534
34814b9f 6535 p = eh->elf.root.root.string - 1;
d1329ca3
AM
6536 save = *p;
6537 *(char *) p = '.';
6538 htab = ppc_hash_table (info);
4dfe6ac6
NC
6539 if (htab == NULL)
6540 return;
6541
34814b9f
AM
6542 fh = (struct ppc_link_hash_entry *)
6543 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM
6544 *(char *) p = save;
6545
6546 /* Unfortunately, if it so happens that the string we were
6547 looking for was allocated immediately before this string,
6548 then we overwrote the string terminator. That's the only
6549 reason the lookup should fail. */
6550 if (fh == NULL)
6551 {
34814b9f
AM
6552 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
6553 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 6554 --q, --p;
34814b9f
AM
6555 if (q < eh->elf.root.root.string && *p == '.')
6556 fh = (struct ppc_link_hash_entry *)
6557 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM
6558 }
6559 if (fh != NULL)
6560 {
34814b9f
AM
6561 eh->oh = fh;
6562 fh->oh = eh;
d1329ca3
AM
6563 }
6564 }
e86ce104 6565 if (fh != NULL)
34814b9f 6566 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM
6567 }
6568}
6569
411e1bfb 6570static bfd_boolean
8843416a
AM
6571get_sym_h (struct elf_link_hash_entry **hp,
6572 Elf_Internal_Sym **symp,
6573 asection **symsecp,
f961d9dd 6574 unsigned char **tls_maskp,
8843416a
AM
6575 Elf_Internal_Sym **locsymsp,
6576 unsigned long r_symndx,
6577 bfd *ibfd)
411e1bfb 6578{
0ffa91dd 6579 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
411e1bfb
AM
6580
6581 if (r_symndx >= symtab_hdr->sh_info)
6582 {
6583 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
6584 struct elf_link_hash_entry *h;
6585
6586 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 6587 h = elf_follow_link (h);
411e1bfb
AM
6588
6589 if (hp != NULL)
6590 *hp = h;
6591
6592 if (symp != NULL)
6593 *symp = NULL;
6594
6595 if (symsecp != NULL)
6596 {
6597 asection *symsec = NULL;
6598 if (h->root.type == bfd_link_hash_defined
6599 || h->root.type == bfd_link_hash_defweak)
6600 symsec = h->root.u.def.section;
6601 *symsecp = symsec;
6602 }
6603
e7b938ca 6604 if (tls_maskp != NULL)
411e1bfb
AM
6605 {
6606 struct ppc_link_hash_entry *eh;
6607
6608 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 6609 *tls_maskp = &eh->tls_mask;
411e1bfb
AM
6610 }
6611 }
6612 else
6613 {
6614 Elf_Internal_Sym *sym;
6615 Elf_Internal_Sym *locsyms = *locsymsp;
6616
6617 if (locsyms == NULL)
6618 {
6619 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
6620 if (locsyms == NULL)
6621 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
6622 symtab_hdr->sh_info,
6623 0, NULL, NULL, NULL);
6624 if (locsyms == NULL)
6625 return FALSE;
6626 *locsymsp = locsyms;
6627 }
6628 sym = locsyms + r_symndx;
6629
6630 if (hp != NULL)
6631 *hp = NULL;
6632
6633 if (symp != NULL)
6634 *symp = sym;
6635
6636 if (symsecp != NULL)
cb33740c 6637 *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
411e1bfb 6638
e7b938ca 6639 if (tls_maskp != NULL)
411e1bfb
AM
6640 {
6641 struct got_entry **lgot_ents;
f961d9dd 6642 unsigned char *tls_mask;
411e1bfb 6643
e7b938ca 6644 tls_mask = NULL;
411e1bfb
AM
6645 lgot_ents = elf_local_got_ents (ibfd);
6646 if (lgot_ents != NULL)
6647 {
e054468f
AM
6648 struct plt_entry **local_plt = (struct plt_entry **)
6649 (lgot_ents + symtab_hdr->sh_info);
f961d9dd 6650 unsigned char *lgot_masks = (unsigned char *)
e054468f 6651 (local_plt + symtab_hdr->sh_info);
e7b938ca 6652 tls_mask = &lgot_masks[r_symndx];
411e1bfb 6653 }
e7b938ca 6654 *tls_maskp = tls_mask;
411e1bfb
AM
6655 }
6656 }
6657 return TRUE;
6658}
6659
e7b938ca 6660/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 6661 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 6662 type suitable for optimization, and 1 otherwise. */
951fd09b
AM
6663
6664static int
f961d9dd 6665get_tls_mask (unsigned char **tls_maskp,
3a71aa26
AM
6666 unsigned long *toc_symndx,
6667 bfd_vma *toc_addend,
0d4792f7 6668 Elf_Internal_Sym **locsymsp,
3a71aa26
AM
6669 const Elf_Internal_Rela *rel,
6670 bfd *ibfd)
411e1bfb
AM
6671{
6672 unsigned long r_symndx;
0d4792f7 6673 int next_r;
411e1bfb
AM
6674 struct elf_link_hash_entry *h;
6675 Elf_Internal_Sym *sym;
6676 asection *sec;
6677 bfd_vma off;
6678
6679 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 6680 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 6681 return 0;
411e1bfb 6682
e7b938ca 6683 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb 6684 || sec == NULL
7c8fe5c4 6685 || ppc64_elf_section_data (sec)->sec_type != sec_toc)
951fd09b 6686 return 1;
411e1bfb
AM
6687
6688 /* Look inside a TOC section too. */
6689 if (h != NULL)
6690 {
6691 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
6692 off = h->root.u.def.value;
6693 }
6694 else
6695 off = sym->st_value;
6696 off += rel->r_addend;
6697 BFD_ASSERT (off % 8 == 0);
3a71aa26
AM
6698 r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8];
6699 next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1];
0d4792f7
AM
6700 if (toc_symndx != NULL)
6701 *toc_symndx = r_symndx;
3a71aa26
AM
6702 if (toc_addend != NULL)
6703 *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8];
6704 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
6705 return 0;
0d4792f7
AM
6706 if ((h == NULL
6707 || ((h->root.type == bfd_link_hash_defined
6708 || h->root.type == bfd_link_hash_defweak)
f5385ebf 6709 && !h->def_dynamic))
0d4792f7
AM
6710 && (next_r == -1 || next_r == -2))
6711 return 1 - next_r;
951fd09b 6712 return 1;
411e1bfb
AM
6713}
6714
754021d0 6715/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 6716 code for the old ABI, these will already have been done. */
754021d0
AM
6717
6718static bfd_boolean
6719adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
6720{
6721 struct ppc_link_hash_entry *eh;
6722 asection *sym_sec;
74f0fb50 6723 struct _opd_sec_data *opd;
754021d0
AM
6724
6725 if (h->root.type == bfd_link_hash_indirect)
6726 return TRUE;
6727
6728 if (h->root.type == bfd_link_hash_warning)
6729 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6730
6731 if (h->root.type != bfd_link_hash_defined
6732 && h->root.type != bfd_link_hash_defweak)
6733 return TRUE;
6734
6735 eh = (struct ppc_link_hash_entry *) h;
6736 if (eh->adjust_done)
6737 return TRUE;
6738
6739 sym_sec = eh->elf.root.u.def.section;
74f0fb50
AM
6740 opd = get_opd_info (sym_sec);
6741 if (opd != NULL && opd->adjust != NULL)
754021d0 6742 {
74f0fb50 6743 long adjust = opd->adjust[eh->elf.root.u.def.value / 8];
4025353c
AM
6744 if (adjust == -1)
6745 {
6746 /* This entry has been deleted. */
b3fac117 6747 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
81688140
AM
6748 if (dsec == NULL)
6749 {
6750 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
6751 if (elf_discarded_section (dsec))
6752 {
b3fac117 6753 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
81688140
AM
6754 break;
6755 }
6756 }
4025353c 6757 eh->elf.root.u.def.value = 0;
81688140 6758 eh->elf.root.u.def.section = dsec;
4025353c
AM
6759 }
6760 else
6761 eh->elf.root.u.def.value += adjust;
754021d0
AM
6762 eh->adjust_done = 1;
6763 }
6764 return TRUE;
6765}
6766
8c1d1bb8
AM
6767/* Handles decrementing dynamic reloc counts for the reloc specified by
6768 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC
6769 have already been determined. */
6770
6771static bfd_boolean
6772dec_dynrel_count (bfd_vma r_info,
6773 asection *sec,
6774 struct bfd_link_info *info,
6775 Elf_Internal_Sym **local_syms,
6776 struct elf_link_hash_entry *h,
6777 asection *sym_sec)
6778{
6779 enum elf_ppc64_reloc_type r_type;
6780 struct ppc_dyn_relocs *p;
6781 struct ppc_dyn_relocs **pp;
6782
6783 /* Can this reloc be dynamic? This switch, and later tests here
6784 should be kept in sync with the code in check_relocs. */
6785 r_type = ELF64_R_TYPE (r_info);
6786 switch (r_type)
6787 {
6788 default:
6789 return TRUE;
6790
6791 case R_PPC64_TPREL16:
6792 case R_PPC64_TPREL16_LO:
6793 case R_PPC64_TPREL16_HI:
6794 case R_PPC64_TPREL16_HA:
6795 case R_PPC64_TPREL16_DS:
6796 case R_PPC64_TPREL16_LO_DS:
6797 case R_PPC64_TPREL16_HIGHER:
6798 case R_PPC64_TPREL16_HIGHERA:
6799 case R_PPC64_TPREL16_HIGHEST:
6800 case R_PPC64_TPREL16_HIGHESTA:
6801 if (!info->shared)
6802 return TRUE;
6803
6804 case R_PPC64_TPREL64:
6805 case R_PPC64_DTPMOD64:
6806 case R_PPC64_DTPREL64:
6807 case R_PPC64_ADDR64:
6808 case R_PPC64_REL30:
6809 case R_PPC64_REL32:
6810 case R_PPC64_REL64:
6811 case R_PPC64_ADDR14:
6812 case R_PPC64_ADDR14_BRNTAKEN:
6813 case R_PPC64_ADDR14_BRTAKEN:
6814 case R_PPC64_ADDR16:
6815 case R_PPC64_ADDR16_DS:
6816 case R_PPC64_ADDR16_HA:
6817 case R_PPC64_ADDR16_HI:
6818 case R_PPC64_ADDR16_HIGHER:
6819 case R_PPC64_ADDR16_HIGHERA:
6820 case R_PPC64_ADDR16_HIGHEST:
6821 case R_PPC64_ADDR16_HIGHESTA:
6822 case R_PPC64_ADDR16_LO:
6823 case R_PPC64_ADDR16_LO_DS:
6824 case R_PPC64_ADDR24:
6825 case R_PPC64_ADDR32:
6826 case R_PPC64_UADDR16:
6827 case R_PPC64_UADDR32:
6828 case R_PPC64_UADDR64:
6829 case R_PPC64_TOC:
6830 break;
6831 }
6832
6833 if (local_syms != NULL)
6834 {
6835 unsigned long r_symndx;
6836 Elf_Internal_Sym *sym;
6837 bfd *ibfd = sec->owner;
6838
6839 r_symndx = ELF64_R_SYM (r_info);
6840 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
6841 return FALSE;
6842 }
6843
6844 if ((info->shared
1d483afe 6845 && (must_be_dyn_reloc (info, r_type)
8c1d1bb8
AM
6846 || (h != NULL
6847 && (!info->symbolic
6848 || h->root.type == bfd_link_hash_defweak
6849 || !h->def_regular))))
6850 || (ELIMINATE_COPY_RELOCS
6851 && !info->shared
6852 && h != NULL
6853 && (h->root.type == bfd_link_hash_defweak
6854 || !h->def_regular)))
6855 ;
6856 else
6857 return TRUE;
6858
6859 if (h != NULL)
6860 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
8c1d1bb8 6861 else
6edfbbad 6862 {
60124e18
AM
6863 if (sym_sec != NULL)
6864 {
6865 void *vpp = &elf_section_data (sym_sec)->local_dynrel;
6866 pp = (struct ppc_dyn_relocs **) vpp;
6867 }
6868 else
6869 {
6870 void *vpp = &elf_section_data (sec)->local_dynrel;
6871 pp = (struct ppc_dyn_relocs **) vpp;
6872 }
6873
6874 /* elf_gc_sweep may have already removed all dyn relocs associated
6875 with local syms for a given section. Don't report a dynreloc
6876 miscount. */
6877 if (*pp == NULL)
6878 return TRUE;
6edfbbad 6879 }
8c1d1bb8
AM
6880
6881 while ((p = *pp) != NULL)
6882 {
6883 if (p->sec == sec)
6884 {
1d483afe 6885 if (!must_be_dyn_reloc (info, r_type))
8c1d1bb8
AM
6886 p->pc_count -= 1;
6887 p->count -= 1;
6888 if (p->count == 0)
6889 *pp = p->next;
6890 return TRUE;
6891 }
6892 pp = &p->next;
6893 }
6894
6895 (*_bfd_error_handler) (_("dynreloc miscount for %B, section %A"),
6896 sec->owner, sec);
6897 bfd_set_error (bfd_error_bad_value);
6898 return FALSE;
6899}
6900
754021d0
AM
6901/* Remove unused Official Procedure Descriptor entries. Currently we
6902 only remove those associated with functions in discarded link-once
6903 sections, or weakly defined functions that have been overridden. It
6904 would be possible to remove many more entries for statically linked
6905 applications. */
6906
b34976b6 6907bfd_boolean
33c0ec9d 6908ppc64_elf_edit_opd (struct bfd_link_info *info, bfd_boolean non_overlapping)
1e2f5b6e
AM
6909{
6910 bfd *ibfd;
754021d0 6911 bfd_boolean some_edited = FALSE;
3f764659 6912 asection *need_pad = NULL;
1e2f5b6e 6913
411e1bfb 6914 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM
6915 {
6916 asection *sec;
6917 Elf_Internal_Rela *relstart, *rel, *relend;
6918 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 6919 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM
6920 struct elf_link_hash_entry **sym_hashes;
6921 bfd_vma offset;
74f0fb50 6922 struct _opd_sec_data *opd;
3f764659
JJ
6923 bfd_boolean need_edit, add_aux_fields;
6924 bfd_size_type cnt_16b = 0;
1e2f5b6e
AM
6925
6926 sec = bfd_get_section_by_name (ibfd, ".opd");
46de2a7c 6927 if (sec == NULL || sec->size == 0)
1e2f5b6e
AM
6928 continue;
6929
4b85d634
AM
6930 if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS)
6931 continue;
6932
1e2f5b6e
AM
6933 if (sec->output_section == bfd_abs_section_ptr)
6934 continue;
6935
6936 /* Look through the section relocs. */
6937 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
6938 continue;
6939
6cdc0ccc 6940 local_syms = NULL;
0ffa91dd 6941 symtab_hdr = &elf_symtab_hdr (ibfd);
1e2f5b6e
AM
6942 sym_hashes = elf_sym_hashes (ibfd);
6943
6944 /* Read the relocations. */
4ce794b7 6945 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6946 info->keep_memory);
1e2f5b6e 6947 if (relstart == NULL)
b34976b6 6948 return FALSE;
1e2f5b6e
AM
6949
6950 /* First run through the relocs to check they are sane, and to
6951 determine whether we need to edit this opd section. */
b34976b6 6952 need_edit = FALSE;
3f764659 6953 need_pad = sec;
1e2f5b6e
AM
6954 offset = 0;
6955 relend = relstart + sec->reloc_count;
50bc7936 6956 for (rel = relstart; rel < relend; )
1e2f5b6e 6957 {
04c9666a 6958 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM
6959 unsigned long r_symndx;
6960 asection *sym_sec;
6961 struct elf_link_hash_entry *h;
6962 Elf_Internal_Sym *sym;
6963
3f764659 6964 /* .opd contains a regular array of 16 or 24 byte entries. We're
1e2f5b6e
AM
6965 only interested in the reloc pointing to a function entry
6966 point. */
50bc7936
AM
6967 if (rel->r_offset != offset
6968 || rel + 1 >= relend
6969 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM
6970 {
6971 /* If someone messes with .opd alignment then after a
6972 "ld -r" we might have padding in the middle of .opd.
6973 Also, there's nothing to prevent someone putting
6974 something silly in .opd with the assembler. No .opd
b34976b6 6975 optimization for them! */
3f764659 6976 broken_opd:
1e2f5b6e 6977 (*_bfd_error_handler)
d003868e 6978 (_("%B: .opd is not a regular array of opd entries"), ibfd);
b34976b6 6979 need_edit = FALSE;
1e2f5b6e
AM
6980 break;
6981 }
6982
50bc7936
AM
6983 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
6984 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
6985 {
6986 (*_bfd_error_handler)
d003868e
AM
6987 (_("%B: unexpected reloc type %u in .opd section"),
6988 ibfd, r_type);
50bc7936
AM
6989 need_edit = FALSE;
6990 break;
6991 }
6992
1e2f5b6e 6993 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM
6994 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6995 r_symndx, ibfd))
50bc7936 6996 goto error_ret;
1e2f5b6e
AM
6997
6998 if (sym_sec == NULL || sym_sec->owner == NULL)
6999 {
411e1bfb
AM
7000 const char *sym_name;
7001 if (h != NULL)
7002 sym_name = h->root.root.string;
7003 else
26c61ae5
L
7004 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7005 sym_sec);
411e1bfb 7006
1e2f5b6e 7007 (*_bfd_error_handler)
d003868e
AM
7008 (_("%B: undefined sym `%s' in .opd section"),
7009 ibfd, sym_name);
b34976b6 7010 need_edit = FALSE;
1e2f5b6e
AM
7011 break;
7012 }
7013
51020317
AM
7014 /* opd entries are always for functions defined in the
7015 current input bfd. If the symbol isn't defined in the
7016 input bfd, then we won't be using the function in this
7017 bfd; It must be defined in a linkonce section in another
7018 bfd, or is weak. It's also possible that we are
7019 discarding the function due to a linker script /DISCARD/,
7020 which we test for via the output_section. */
7021 if (sym_sec->owner != ibfd
7022 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 7023 need_edit = TRUE;
1e2f5b6e 7024
50bc7936 7025 rel += 2;
3f764659
JJ
7026 if (rel == relend
7027 || (rel + 1 == relend && rel->r_offset == offset + 16))
7028 {
7029 if (sec->size == offset + 24)
7030 {
7031 need_pad = NULL;
7032 break;
7033 }
7034 if (rel == relend && sec->size == offset + 16)
7035 {
7036 cnt_16b++;
7037 break;
7038 }
7039 goto broken_opd;
7040 }
7041
7042 if (rel->r_offset == offset + 24)
7043 offset += 24;
7044 else if (rel->r_offset != offset + 16)
7045 goto broken_opd;
7046 else if (rel + 1 < relend
7047 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
7048 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
7049 {
7050 offset += 16;
7051 cnt_16b++;
7052 }
7053 else if (rel + 2 < relend
7054 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
7055 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
7056 {
7057 offset += 24;
7058 rel += 1;
7059 }
7060 else
7061 goto broken_opd;
1e2f5b6e
AM
7062 }
7063
3f764659
JJ
7064 add_aux_fields = non_overlapping && cnt_16b > 0;
7065
7066 if (need_edit || add_aux_fields)
1e2f5b6e
AM
7067 {
7068 Elf_Internal_Rela *write_rel;
7069 bfd_byte *rptr, *wptr;
983bddc8 7070 bfd_byte *new_contents;
b34976b6 7071 bfd_boolean skip;
3f764659 7072 long opd_ent_size;
74f0fb50
AM
7073 bfd_size_type amt;
7074
983bddc8 7075 new_contents = NULL;
74f0fb50
AM
7076 amt = sec->size * sizeof (long) / 8;
7077 opd = &ppc64_elf_section_data (sec)->u.opd;
33c0ec9d 7078 opd->adjust = bfd_zalloc (sec->owner, amt);
74f0fb50
AM
7079 if (opd->adjust == NULL)
7080 return FALSE;
7081 ppc64_elf_section_data (sec)->sec_type = sec_opd;
1e2f5b6e
AM
7082
7083 /* This seems a waste of time as input .opd sections are all
7084 zeros as generated by gcc, but I suppose there's no reason
7085 this will always be so. We might start putting something in
7086 the third word of .opd entries. */
7087 if ((sec->flags & SEC_IN_MEMORY) == 0)
7088 {
eea6121a
AM
7089 bfd_byte *loc;
7090 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 7091 {
eea6121a
AM
7092 if (loc != NULL)
7093 free (loc);
50bc7936 7094 error_ret:
6cdc0ccc
AM
7095 if (local_syms != NULL
7096 && symtab_hdr->contents != (unsigned char *) local_syms)
7097 free (local_syms);
6cdc0ccc
AM
7098 if (elf_section_data (sec)->relocs != relstart)
7099 free (relstart);
b34976b6 7100 return FALSE;
6cdc0ccc 7101 }
1e2f5b6e
AM
7102 sec->contents = loc;
7103 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
7104 }
7105
7106 elf_section_data (sec)->relocs = relstart;
7107
3f764659 7108 new_contents = sec->contents;
3f764659
JJ
7109 if (add_aux_fields)
7110 {
7111 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
7112 if (new_contents == NULL)
7113 return FALSE;
7114 need_pad = FALSE;
3f764659 7115 }
b4f4e59f
AM
7116 wptr = new_contents;
7117 rptr = sec->contents;
3f764659 7118
1e2f5b6e 7119 write_rel = relstart;
b34976b6 7120 skip = FALSE;
1e2f5b6e 7121 offset = 0;
3f764659 7122 opd_ent_size = 0;
1e2f5b6e
AM
7123 for (rel = relstart; rel < relend; rel++)
7124 {
50bc7936
AM
7125 unsigned long r_symndx;
7126 asection *sym_sec;
7127 struct elf_link_hash_entry *h;
7128 Elf_Internal_Sym *sym;
7129
7130 r_symndx = ELF64_R_SYM (rel->r_info);
7131 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 7132 r_symndx, ibfd))
50bc7936
AM
7133 goto error_ret;
7134
1e2f5b6e
AM
7135 if (rel->r_offset == offset)
7136 {
50bc7936 7137 struct ppc_link_hash_entry *fdh = NULL;
3f764659
JJ
7138
7139 /* See if the .opd entry is full 24 byte or
7140 16 byte (with fd_aux entry overlapped with next
7141 fd_func). */
7142 opd_ent_size = 24;
7143 if ((rel + 2 == relend && sec->size == offset + 16)
7144 || (rel + 3 < relend
7145 && rel[2].r_offset == offset + 16
7146 && rel[3].r_offset == offset + 24
7147 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
7148 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
7149 opd_ent_size = 16;
7150
4025353c
AM
7151 if (h != NULL
7152 && h->root.root.string[0] == '.')
c4f68ce3 7153 {
4dfe6ac6
NC
7154 struct ppc_link_hash_table *htab;
7155
7156 htab = ppc_hash_table (info);
7157 if (htab != NULL)
7158 fdh = lookup_fdh ((struct ppc_link_hash_entry *) h,
7159 htab);
c4f68ce3
AM
7160 if (fdh != NULL
7161 && fdh->elf.root.type != bfd_link_hash_defined
7162 && fdh->elf.root.type != bfd_link_hash_defweak)
7163 fdh = NULL;
7164 }
1e2f5b6e 7165
51020317
AM
7166 skip = (sym_sec->owner != ibfd
7167 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM
7168 if (skip)
7169 {
4025353c 7170 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM
7171 {
7172 /* Arrange for the function descriptor sym
7173 to be dropped. */
d6fe2dc1
AM
7174 fdh->elf.root.u.def.value = 0;
7175 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 7176 }
74f0fb50 7177 opd->adjust[rel->r_offset / 8] = -1;
a4aa0fb7
AM
7178 }
7179 else
1e2f5b6e
AM
7180 {
7181 /* We'll be keeping this opd entry. */
7182
4025353c 7183 if (fdh != NULL)
1e2f5b6e 7184 {
754021d0
AM
7185 /* Redefine the function descriptor symbol to
7186 this location in the opd section. It is
7187 necessary to update the value here rather
7188 than using an array of adjustments as we do
7189 for local symbols, because various places
7190 in the generic ELF code use the value
7191 stored in u.def.value. */
3f764659 7192 fdh->elf.root.u.def.value = wptr - new_contents;
754021d0 7193 fdh->adjust_done = 1;
1e2f5b6e 7194 }
754021d0
AM
7195
7196 /* Local syms are a bit tricky. We could
7197 tweak them as they can be cached, but
7198 we'd need to look through the local syms
7199 for the function descriptor sym which we
7200 don't have at the moment. So keep an
7201 array of adjustments. */
74f0fb50 7202 opd->adjust[rel->r_offset / 8]
3f764659 7203 = (wptr - new_contents) - (rptr - sec->contents);
1e2f5b6e
AM
7204
7205 if (wptr != rptr)
3f764659
JJ
7206 memcpy (wptr, rptr, opd_ent_size);
7207 wptr += opd_ent_size;
7208 if (add_aux_fields && opd_ent_size == 16)
7209 {
7210 memset (wptr, '\0', 8);
7211 wptr += 8;
7212 }
1e2f5b6e 7213 }
3f764659
JJ
7214 rptr += opd_ent_size;
7215 offset += opd_ent_size;
1e2f5b6e
AM
7216 }
7217
50bc7936
AM
7218 if (skip)
7219 {
60124e18
AM
7220 if (!NO_OPD_RELOCS
7221 && !info->relocatable
18d944df
AM
7222 && !dec_dynrel_count (rel->r_info, sec, info,
7223 NULL, h, sym_sec))
8c1d1bb8 7224 goto error_ret;
50bc7936
AM
7225 }
7226 else
1e2f5b6e 7227 {
50bc7936
AM
7228 /* We need to adjust any reloc offsets to point to the
7229 new opd entries. While we're at it, we may as well
7230 remove redundant relocs. */
74f0fb50 7231 rel->r_offset += opd->adjust[(offset - opd_ent_size) / 8];
1e2f5b6e
AM
7232 if (write_rel != rel)
7233 memcpy (write_rel, rel, sizeof (*rel));
7234 ++write_rel;
7235 }
7236 }
7237
3f764659 7238 sec->size = wptr - new_contents;
1e2f5b6e 7239 sec->reloc_count = write_rel - relstart;
3f764659
JJ
7240 if (add_aux_fields)
7241 {
7242 free (sec->contents);
7243 sec->contents = new_contents;
7244 }
7245
05bf9422 7246 /* Fudge the header size too, as this is used later in
cdcf6e38
AM
7247 elf_bfd_final_link if we are emitting relocs. */
7248 elf_section_data (sec)->rel_hdr.sh_size
7249 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
7250 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
754021d0 7251 some_edited = TRUE;
1e2f5b6e 7252 }
6cdc0ccc 7253 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 7254 free (relstart);
6cdc0ccc 7255
411e1bfb
AM
7256 if (local_syms != NULL
7257 && symtab_hdr->contents != (unsigned char *) local_syms)
7258 {
7259 if (!info->keep_memory)
7260 free (local_syms);
7261 else
7262 symtab_hdr->contents = (unsigned char *) local_syms;
7263 }
7264 }
7265
754021d0
AM
7266 if (some_edited)
7267 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
7268
3f764659
JJ
7269 /* If we are doing a final link and the last .opd entry is just 16 byte
7270 long, add a 8 byte padding after it. */
7271 if (need_pad != NULL && !info->relocatable)
7272 {
7273 bfd_byte *p;
7274
7275 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
7276 {
7277 BFD_ASSERT (need_pad->size > 0);
7278
7279 p = bfd_malloc (need_pad->size + 8);
7280 if (p == NULL)
7281 return FALSE;
699733f6 7282
3f764659
JJ
7283 if (! bfd_get_section_contents (need_pad->owner, need_pad,
7284 p, 0, need_pad->size))
7285 return FALSE;
7286
7287 need_pad->contents = p;
7288 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
7289 }
7290 else
7291 {
7292 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
7293 if (p == NULL)
7294 return FALSE;
7295
7296 need_pad->contents = p;
7297 }
7298
7299 memset (need_pad->contents + need_pad->size, 0, 8);
7300 need_pad->size += 8;
7301 }
7302
411e1bfb
AM
7303 return TRUE;
7304}
7305
e1918d23 7306/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 7307
e1918d23 7308asection *
33c0ec9d
AM
7309ppc64_elf_tls_setup (struct bfd_link_info *info,
7310 int no_tls_get_addr_opt,
7311 int *no_multi_toc)
411e1bfb 7312{
411e1bfb
AM
7313 struct ppc_link_hash_table *htab;
7314
411e1bfb 7315 htab = ppc_hash_table (info);
4dfe6ac6
NC
7316 if (htab == NULL)
7317 return NULL;
7318
33c0ec9d
AM
7319 if (*no_multi_toc)
7320 htab->do_multi_toc = 0;
7321 else if (!htab->do_multi_toc)
7322 *no_multi_toc = 1;
7323
3a71aa26
AM
7324 htab->tls_get_addr = ((struct ppc_link_hash_entry *)
7325 elf_link_hash_lookup (&htab->elf, ".__tls_get_addr",
7326 FALSE, FALSE, TRUE));
a7f2871e
AM
7327 /* Move dynamic linking info to the function descriptor sym. */
7328 if (htab->tls_get_addr != NULL)
7329 func_desc_adjust (&htab->tls_get_addr->elf, info);
3a71aa26
AM
7330 htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *)
7331 elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
7332 FALSE, FALSE, TRUE));
a7f2871e
AM
7333 if (!no_tls_get_addr_opt)
7334 {
7335 struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd;
7336
7337 opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt",
7338 FALSE, FALSE, TRUE);
7339 if (opt != NULL)
7340 func_desc_adjust (opt, info);
7341 opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
7342 FALSE, FALSE, TRUE);
7343 if (opt_fd != NULL
7344 && (opt_fd->root.type == bfd_link_hash_defined
7345 || opt_fd->root.type == bfd_link_hash_defweak))
7346 {
7347 /* If glibc supports an optimized __tls_get_addr call stub,
7348 signalled by the presence of __tls_get_addr_opt, and we'll
7349 be calling __tls_get_addr via a plt call stub, then
7350 make __tls_get_addr point to __tls_get_addr_opt. */
7351 tga_fd = &htab->tls_get_addr_fd->elf;
7352 if (htab->elf.dynamic_sections_created
7353 && tga_fd != NULL
7354 && (tga_fd->type == STT_FUNC
7355 || tga_fd->needs_plt)
7356 && !(SYMBOL_CALLS_LOCAL (info, tga_fd)
7357 || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT
7358 && tga_fd->root.type == bfd_link_hash_undefweak)))
7359 {
7360 struct plt_entry *ent;
7361
7362 for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next)
7363 if (ent->plt.refcount > 0)
7364 break;
7365 if (ent != NULL)
7366 {
7367 tga_fd->root.type = bfd_link_hash_indirect;
7368 tga_fd->root.u.i.link = &opt_fd->root;
7369 ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd);
7370 if (opt_fd->dynindx != -1)
7371 {
7372 /* Use __tls_get_addr_opt in dynamic relocations. */
7373 opt_fd->dynindx = -1;
7374 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
7375 opt_fd->dynstr_index);
7376 if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd))
7377 return FALSE;
7378 }
7379 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd;
7380 tga = &htab->tls_get_addr->elf;
7381 if (opt != NULL && tga != NULL)
7382 {
7383 tga->root.type = bfd_link_hash_indirect;
7384 tga->root.u.i.link = &opt->root;
7385 ppc64_elf_copy_indirect_symbol (info, opt, tga);
7386 _bfd_elf_link_hash_hide_symbol (info, opt,
7387 tga->forced_local);
7388 htab->tls_get_addr = (struct ppc_link_hash_entry *) opt;
7389 }
7390 htab->tls_get_addr_fd->oh = htab->tls_get_addr;
7391 htab->tls_get_addr_fd->is_func_descriptor = 1;
7392 if (htab->tls_get_addr != NULL)
7393 {
7394 htab->tls_get_addr->oh = htab->tls_get_addr_fd;
7395 htab->tls_get_addr->is_func = 1;
7396 }
7397 }
7398 }
7399 }
7400 else
7401 no_tls_get_addr_opt = TRUE;
7402 }
7403 htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
33c0ec9d 7404 return _bfd_elf_tls_setup (info->output_bfd, info);
3a71aa26 7405}
8387904d 7406
3a71aa26
AM
7407/* Return TRUE iff REL is a branch reloc with a global symbol matching
7408 HASH1 or HASH2. */
8387904d 7409
3a71aa26
AM
7410static bfd_boolean
7411branch_reloc_hash_match (const bfd *ibfd,
7412 const Elf_Internal_Rela *rel,
7413 const struct ppc_link_hash_entry *hash1,
7414 const struct ppc_link_hash_entry *hash2)
7415{
7416 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
7417 enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info);
7418 unsigned int r_symndx = ELF64_R_SYM (rel->r_info);
7419
e054468f 7420 if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
8387904d 7421 {
3a71aa26
AM
7422 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
7423 struct elf_link_hash_entry *h;
8387904d 7424
3a71aa26 7425 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
b31867b6 7426 h = elf_follow_link (h);
3a71aa26
AM
7427 if (h == &hash1->elf || h == &hash2->elf)
7428 return TRUE;
a48ebf4d 7429 }
3a71aa26 7430 return FALSE;
951fd09b 7431}
411e1bfb 7432
951fd09b
AM
7433/* Run through all the TLS relocs looking for optimization
7434 opportunities. The linker has been hacked (see ppc64elf.em) to do
7435 a preliminary section layout so that we know the TLS segment
7436 offsets. We can't optimize earlier because some optimizations need
7437 to know the tp offset, and we need to optimize before allocating
7438 dynamic relocations. */
7439
7440bfd_boolean
33c0ec9d 7441ppc64_elf_tls_optimize (struct bfd_link_info *info)
951fd09b
AM
7442{
7443 bfd *ibfd;
7444 asection *sec;
7445 struct ppc_link_hash_table *htab;
102890f0 7446 int pass;
951fd09b 7447
1d483afe 7448 if (info->relocatable || !info->executable)
411e1bfb
AM
7449 return TRUE;
7450
951fd09b 7451 htab = ppc_hash_table (info);
4dfe6ac6
NC
7452 if (htab == NULL)
7453 return FALSE;
7454
411e1bfb
AM
7455 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7456 {
7457 Elf_Internal_Sym *locsyms = NULL;
30038c59
AM
7458 asection *toc = bfd_get_section_by_name (ibfd, ".toc");
7459 unsigned char *toc_ref = NULL;
411e1bfb 7460
102890f0
AM
7461 /* Look at all the sections for this file. Make two passes over
7462 the relocs. On the first pass, mark toc entries involved
7463 with tls relocs, and check that tls relocs involved in
7464 setting up a tls_get_addr call are indeed followed by such a
7465 call. If they are not, exclude them from the optimizations
7466 done on the second pass. */
7467 for (pass = 0; pass < 2; ++pass)
7468 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7469 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
7470 {
7471 Elf_Internal_Rela *relstart, *rel, *relend;
411e1bfb 7472
102890f0
AM
7473 /* Read the relocations. */
7474 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7475 info->keep_memory);
7476 if (relstart == NULL)
7477 return FALSE;
411e1bfb 7478
102890f0
AM
7479 relend = relstart + sec->reloc_count;
7480 for (rel = relstart; rel < relend; rel++)
7481 {
7482 enum elf_ppc64_reloc_type r_type;
7483 unsigned long r_symndx;
7484 struct elf_link_hash_entry *h;
7485 Elf_Internal_Sym *sym;
7486 asection *sym_sec;
f961d9dd
AM
7487 unsigned char *tls_mask;
7488 unsigned char tls_set, tls_clear, tls_type = 0;
102890f0
AM
7489 bfd_vma value;
7490 bfd_boolean ok_tprel, is_local;
7491 long toc_ref_index = 0;
7492 int expecting_tls_get_addr = 0;
411e1bfb 7493
102890f0
AM
7494 r_symndx = ELF64_R_SYM (rel->r_info);
7495 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
7496 r_symndx, ibfd))
7497 {
7498 err_free_rel:
7499 if (elf_section_data (sec)->relocs != relstart)
7500 free (relstart);
7501 if (toc_ref != NULL)
7502 free (toc_ref);
7503 if (locsyms != NULL
0ffa91dd 7504 && (elf_symtab_hdr (ibfd).contents
102890f0
AM
7505 != (unsigned char *) locsyms))
7506 free (locsyms);
7507 return FALSE;
7508 }
411e1bfb 7509
102890f0
AM
7510 if (h != NULL)
7511 {
766bc656
AM
7512 if (h->root.type == bfd_link_hash_defined
7513 || h->root.type == bfd_link_hash_defweak)
7514 value = h->root.u.def.value;
7515 else if (h->root.type == bfd_link_hash_undefweak)
7516 value = 0;
7517 else
102890f0 7518 continue;
102890f0
AM
7519 }
7520 else
7521 /* Symbols referenced by TLS relocs must be of type
7522 STT_TLS. So no need for .opd local sym adjust. */
7523 value = sym->st_value;
7524
7525 ok_tprel = FALSE;
7526 is_local = FALSE;
7527 if (h == NULL
7528 || !h->def_dynamic)
7529 {
7530 is_local = TRUE;
766bc656
AM
7531 if (h != NULL
7532 && h->root.type == bfd_link_hash_undefweak)
7533 ok_tprel = TRUE;
7534 else
7535 {
7536 value += sym_sec->output_offset;
7537 value += sym_sec->output_section->vma;
7538 value -= htab->elf.tls_sec->vma;
7539 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
7540 < (bfd_vma) 1 << 32);
7541 }
102890f0 7542 }
951fd09b 7543
102890f0
AM
7544 r_type = ELF64_R_TYPE (rel->r_info);
7545 switch (r_type)
7546 {
7547 case R_PPC64_GOT_TLSLD16:
7548 case R_PPC64_GOT_TLSLD16_LO:
7549 expecting_tls_get_addr = 1;
7550 /* Fall thru */
7551
7552 case R_PPC64_GOT_TLSLD16_HI:
7553 case R_PPC64_GOT_TLSLD16_HA:
7554 /* These relocs should never be against a symbol
7555 defined in a shared lib. Leave them alone if
7556 that turns out to be the case. */
7557 if (!is_local)
7558 continue;
411e1bfb 7559
102890f0 7560 /* LD -> LE */
411e1bfb 7561 tls_set = 0;
102890f0
AM
7562 tls_clear = TLS_LD;
7563 tls_type = TLS_TLS | TLS_LD;
7564 break;
411e1bfb 7565
102890f0
AM
7566 case R_PPC64_GOT_TLSGD16:
7567 case R_PPC64_GOT_TLSGD16_LO:
7568 expecting_tls_get_addr = 1;
7569 /* Fall thru */
7570
7571 case R_PPC64_GOT_TLSGD16_HI:
7572 case R_PPC64_GOT_TLSGD16_HA:
7573 if (ok_tprel)
7574 /* GD -> LE */
411e1bfb 7575 tls_set = 0;
102890f0
AM
7576 else
7577 /* GD -> IE */
7578 tls_set = TLS_TLS | TLS_TPRELGD;
7579 tls_clear = TLS_GD;
7580 tls_type = TLS_TLS | TLS_GD;
7581 break;
7582
7583 case R_PPC64_GOT_TPREL16_DS:
7584 case R_PPC64_GOT_TPREL16_LO_DS:
7585 case R_PPC64_GOT_TPREL16_HI:
7586 case R_PPC64_GOT_TPREL16_HA:
7587 if (ok_tprel)
7588 {
7589 /* IE -> LE */
7590 tls_set = 0;
7591 tls_clear = TLS_TPREL;
7592 tls_type = TLS_TLS | TLS_TPREL;
7593 break;
7594 }
411e1bfb
AM
7595 continue;
7596
102890f0
AM
7597 case R_PPC64_TOC16:
7598 case R_PPC64_TOC16_LO:
7599 case R_PPC64_TLS:
727fc41e
AM
7600 case R_PPC64_TLSGD:
7601 case R_PPC64_TLSLD:
102890f0
AM
7602 if (sym_sec == NULL || sym_sec != toc)
7603 continue;
7604
7605 /* Mark this toc entry as referenced by a TLS
7606 code sequence. We can do that now in the
7607 case of R_PPC64_TLS, and after checking for
7608 tls_get_addr for the TOC16 relocs. */
7609 if (toc_ref == NULL)
7610 {
7611 toc_ref = bfd_zmalloc (toc->size / 8);
7612 if (toc_ref == NULL)
7613 goto err_free_rel;
7614 }
7615 if (h != NULL)
7616 value = h->root.u.def.value;
7617 else
7618 value = sym->st_value;
7619 value += rel->r_addend;
7620 BFD_ASSERT (value < toc->size && value % 8 == 0);
7621 toc_ref_index = value / 8;
727fc41e
AM
7622 if (r_type == R_PPC64_TLS
7623 || r_type == R_PPC64_TLSGD
7624 || r_type == R_PPC64_TLSLD)
102890f0
AM
7625 {
7626 toc_ref[toc_ref_index] = 1;
7627 continue;
7628 }
7629
7630 if (pass != 0 && toc_ref[toc_ref_index] == 0)
7631 continue;
7632
7633 tls_set = 0;
7634 tls_clear = 0;
7635 expecting_tls_get_addr = 2;
7636 break;
7637
7638 case R_PPC64_TPREL64:
7639 if (pass == 0
7640 || sec != toc
7641 || toc_ref == NULL
7642 || !toc_ref[rel->r_offset / 8])
7643 continue;
7644 if (ok_tprel)
7645 {
7646 /* IE -> LE */
7647 tls_set = TLS_EXPLICIT;
7648 tls_clear = TLS_TPREL;
7649 break;
7650 }
7651 continue;
7652
7653 case R_PPC64_DTPMOD64:
7654 if (pass == 0
7655 || sec != toc
7656 || toc_ref == NULL
7657 || !toc_ref[rel->r_offset / 8])
7658 continue;
7659 if (rel + 1 < relend
7660 && (rel[1].r_info
7661 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
7662 && rel[1].r_offset == rel->r_offset + 8)
7663 {
7664 if (ok_tprel)
7665 /* GD -> LE */
7666 tls_set = TLS_EXPLICIT | TLS_GD;
7667 else
7668 /* GD -> IE */
7669 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
7670 tls_clear = TLS_GD;
7671 }
7672 else
7673 {
7674 if (!is_local)
7675 continue;
7676
7677 /* LD -> LE */
7678 tls_set = TLS_EXPLICIT;
7679 tls_clear = TLS_LD;
7680 }
7681 break;
7682
7683 default:
7684 continue;
7685 }
7686
7687 if (pass == 0)
7688 {
727fc41e
AM
7689 if (!expecting_tls_get_addr
7690 || !sec->has_tls_get_addr_call)
102890f0
AM
7691 continue;
7692
3a71aa26
AM
7693 if (rel + 1 < relend
7694 && branch_reloc_hash_match (ibfd, rel + 1,
7695 htab->tls_get_addr,
7696 htab->tls_get_addr_fd))
102890f0 7697 {
3a71aa26 7698 if (expecting_tls_get_addr == 2)
102890f0 7699 {
3a71aa26 7700 /* Check for toc tls entries. */
f961d9dd 7701 unsigned char *toc_tls;
3a71aa26
AM
7702 int retval;
7703
7704 retval = get_tls_mask (&toc_tls, NULL, NULL,
7705 &locsyms,
7706 rel, ibfd);
7707 if (retval == 0)
7708 goto err_free_rel;
7709 if (retval > 1 && toc_tls != NULL)
7710 toc_ref[toc_ref_index] = 1;
102890f0 7711 }
3a71aa26 7712 continue;
102890f0
AM
7713 }
7714
7715 if (expecting_tls_get_addr != 1)
7716 continue;
7717
7718 /* Uh oh, we didn't find the expected call. We
7719 could just mark this symbol to exclude it
7720 from tls optimization but it's safer to skip
7721 the entire section. */
7722 sec->has_tls_reloc = 0;
7723 break;
7724 }
7725
85f7a9cb 7726 if (expecting_tls_get_addr && htab->tls_get_addr != NULL)
102890f0
AM
7727 {
7728 struct plt_entry *ent;
7729 for (ent = htab->tls_get_addr->elf.plt.plist;
7730 ent != NULL;
7731 ent = ent->next)
7732 if (ent->addend == 0)
411e1bfb 7733 {
102890f0 7734 if (ent->plt.refcount > 0)
30038c59 7735 {
102890f0
AM
7736 ent->plt.refcount -= 1;
7737 expecting_tls_get_addr = 0;
30038c59 7738 }
102890f0 7739 break;
411e1bfb 7740 }
102890f0 7741 }
411e1bfb 7742
85f7a9cb 7743 if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL)
102890f0
AM
7744 {
7745 struct plt_entry *ent;
7746 for (ent = htab->tls_get_addr_fd->elf.plt.plist;
7747 ent != NULL;
7748 ent = ent->next)
7749 if (ent->addend == 0)
411e1bfb 7750 {
102890f0
AM
7751 if (ent->plt.refcount > 0)
7752 ent->plt.refcount -= 1;
7753 break;
411e1bfb 7754 }
102890f0 7755 }
411e1bfb 7756
102890f0 7757 if (tls_clear == 0)
30038c59
AM
7758 continue;
7759
102890f0
AM
7760 if ((tls_set & TLS_EXPLICIT) == 0)
7761 {
7762 struct got_entry *ent;
411e1bfb 7763
102890f0
AM
7764 /* Adjust got entry for this reloc. */
7765 if (h != NULL)
7766 ent = h->got.glist;
7767 else
7768 ent = elf_local_got_ents (ibfd)[r_symndx];
411e1bfb 7769
102890f0
AM
7770 for (; ent != NULL; ent = ent->next)
7771 if (ent->addend == rel->r_addend
7772 && ent->owner == ibfd
7773 && ent->tls_type == tls_type)
7774 break;
7775 if (ent == NULL)
7776 abort ();
411e1bfb 7777
102890f0
AM
7778 if (tls_set == 0)
7779 {
7780 /* We managed to get rid of a got entry. */
7781 if (ent->got.refcount > 0)
7782 ent->got.refcount -= 1;
7783 }
7784 }
7785 else
7786 {
7787 /* If we got rid of a DTPMOD/DTPREL reloc pair then
7788 we'll lose one or two dyn relocs. */
7789 if (!dec_dynrel_count (rel->r_info, sec, info,
7790 NULL, h, sym_sec))
7791 return FALSE;
411e1bfb 7792
102890f0
AM
7793 if (tls_set == (TLS_EXPLICIT | TLS_GD))
7794 {
7795 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
7796 NULL, h, sym_sec))
7797 return FALSE;
7798 }
7799 }
411e1bfb 7800
102890f0
AM
7801 *tls_mask |= tls_set;
7802 *tls_mask &= ~tls_clear;
7803 }
8c1d1bb8 7804
102890f0
AM
7805 if (elf_section_data (sec)->relocs != relstart)
7806 free (relstart);
7807 }
411e1bfb 7808
727fc41e
AM
7809 if (toc_ref != NULL)
7810 free (toc_ref);
411e1bfb 7811
727fc41e
AM
7812 if (locsyms != NULL
7813 && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms))
7814 {
7815 if (!info->keep_memory)
7816 free (locsyms);
7817 else
7818 elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms;
7819 }
7820 }
b34976b6 7821 return TRUE;
1e2f5b6e 7822}
b34976b6 7823
c5614fa4
AM
7824/* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
7825 the values of any global symbols in a toc section that has been
7826 edited. Globals in toc sections should be a rarity, so this function
7827 sets a flag if any are found in toc sections other than the one just
7828 edited, so that futher hash table traversals can be avoided. */
7829
7830struct adjust_toc_info
7831{
7832 asection *toc;
7833 unsigned long *skip;
7834 bfd_boolean global_toc_syms;
7835};
7836
7837static bfd_boolean
7838adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
7839{
7840 struct ppc_link_hash_entry *eh;
7841 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
7842
7843 if (h->root.type == bfd_link_hash_indirect)
7844 return TRUE;
7845
7846 if (h->root.type == bfd_link_hash_warning)
7847 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7848
7849 if (h->root.type != bfd_link_hash_defined
7850 && h->root.type != bfd_link_hash_defweak)
7851 return TRUE;
7852
7853 eh = (struct ppc_link_hash_entry *) h;
7854 if (eh->adjust_done)
7855 return TRUE;
7856
7857 if (eh->elf.root.u.def.section == toc_inf->toc)
7858 {
7859 unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3];
7860 if (skip != (unsigned long) -1)
7861 eh->elf.root.u.def.value -= skip;
7862 else
7863 {
7864 (*_bfd_error_handler)
7865 (_("%s defined in removed toc entry"), eh->elf.root.root.string);
7866 eh->elf.root.u.def.section = &bfd_abs_section;
7867 eh->elf.root.u.def.value = 0;
7868 }
7869 eh->adjust_done = 1;
7870 }
7871 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
7872 toc_inf->global_toc_syms = TRUE;
7873
7874 return TRUE;
7875}
7876
7877/* Examine all relocs referencing .toc sections in order to remove
7878 unused .toc entries. */
7879
7880bfd_boolean
33c0ec9d 7881ppc64_elf_edit_toc (struct bfd_link_info *info)
c5614fa4
AM
7882{
7883 bfd *ibfd;
7884 struct adjust_toc_info toc_inf;
7885
7886 toc_inf.global_toc_syms = TRUE;
7887 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7888 {
7889 asection *toc, *sec;
7890 Elf_Internal_Shdr *symtab_hdr;
7891 Elf_Internal_Sym *local_syms;
7892 struct elf_link_hash_entry **sym_hashes;
92b7a70f 7893 Elf_Internal_Rela *relstart, *rel;
c5614fa4
AM
7894 unsigned long *skip, *drop;
7895 unsigned char *used;
7896 unsigned char *keep, last, some_unused;
7897
7898 toc = bfd_get_section_by_name (ibfd, ".toc");
7899 if (toc == NULL
92b7a70f 7900 || toc->size == 0
c5614fa4
AM
7901 || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS
7902 || elf_discarded_section (toc))
7903 continue;
7904
7905 local_syms = NULL;
0ffa91dd 7906 symtab_hdr = &elf_symtab_hdr (ibfd);
c5614fa4
AM
7907 sym_hashes = elf_sym_hashes (ibfd);
7908
7909 /* Look at sections dropped from the final link. */
7910 skip = NULL;
7911 relstart = NULL;
7912 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7913 {
7914 if (sec->reloc_count == 0
7915 || !elf_discarded_section (sec)
7916 || get_opd_info (sec)
7917 || (sec->flags & SEC_ALLOC) == 0
7918 || (sec->flags & SEC_DEBUGGING) != 0)
7919 continue;
7920
7921 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
7922 if (relstart == NULL)
7923 goto error_ret;
7924
7925 /* Run through the relocs to see which toc entries might be
7926 unused. */
7927 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7928 {
7929 enum elf_ppc64_reloc_type r_type;
7930 unsigned long r_symndx;
7931 asection *sym_sec;
7932 struct elf_link_hash_entry *h;
7933 Elf_Internal_Sym *sym;
7934 bfd_vma val;
7935
7936 r_type = ELF64_R_TYPE (rel->r_info);
7937 switch (r_type)
7938 {
7939 default:
7940 continue;
7941
7942 case R_PPC64_TOC16:
7943 case R_PPC64_TOC16_LO:
7944 case R_PPC64_TOC16_HI:
7945 case R_PPC64_TOC16_HA:
7946 case R_PPC64_TOC16_DS:
7947 case R_PPC64_TOC16_LO_DS:
7948 break;
7949 }
7950
7951 r_symndx = ELF64_R_SYM (rel->r_info);
7952 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7953 r_symndx, ibfd))
7954 goto error_ret;
7955
7956 if (sym_sec != toc)
7957 continue;
7958
7959 if (h != NULL)
7960 val = h->root.u.def.value;
7961 else
7962 val = sym->st_value;
7963 val += rel->r_addend;
7964
7965 if (val >= toc->size)
7966 continue;
7967
7968 /* Anything in the toc ought to be aligned to 8 bytes.
7969 If not, don't mark as unused. */
7970 if (val & 7)
7971 continue;
7972
7973 if (skip == NULL)
7974 {
7975 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8);
7976 if (skip == NULL)
7977 goto error_ret;
7978 }
7979
7980 skip[val >> 3] = 1;
7981 }
7982
7983 if (elf_section_data (sec)->relocs != relstart)
7984 free (relstart);
7985 }
7986
7987 if (skip == NULL)
7988 continue;
7989
7990 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
7991 if (used == NULL)
7992 {
7993 error_ret:
7994 if (local_syms != NULL
7995 && symtab_hdr->contents != (unsigned char *) local_syms)
7996 free (local_syms);
7997 if (sec != NULL
7998 && relstart != NULL
7999 && elf_section_data (sec)->relocs != relstart)
8000 free (relstart);
8001 if (skip != NULL)
8002 free (skip);
8003 return FALSE;
8004 }
8005
30038c59
AM
8006 /* Now check all kept sections that might reference the toc.
8007 Check the toc itself last. */
8008 for (sec = (ibfd->sections == toc && toc->next ? toc->next
8009 : ibfd->sections);
c5614fa4 8010 sec != NULL;
c5614fa4 8011 sec = (sec == toc ? NULL
c5614fa4 8012 : sec->next == NULL ? toc
30038c59 8013 : sec->next == toc && toc->next ? toc->next
c5614fa4
AM
8014 : sec->next))
8015 {
8016 int repeat;
8017
8018 if (sec->reloc_count == 0
8019 || elf_discarded_section (sec)
8020 || get_opd_info (sec)
8021 || (sec->flags & SEC_ALLOC) == 0
8022 || (sec->flags & SEC_DEBUGGING) != 0)
8023 continue;
8024
8025 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE);
8026 if (relstart == NULL)
8027 goto error_ret;
8028
8029 /* Mark toc entries referenced as used. */
8030 repeat = 0;
8031 do
8032 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8033 {
8034 enum elf_ppc64_reloc_type r_type;
8035 unsigned long r_symndx;
8036 asection *sym_sec;
8037 struct elf_link_hash_entry *h;
8038 Elf_Internal_Sym *sym;
8039 bfd_vma val;
8040
8041 r_type = ELF64_R_TYPE (rel->r_info);
8042 switch (r_type)
8043 {
8044 case R_PPC64_TOC16:
8045 case R_PPC64_TOC16_LO:
8046 case R_PPC64_TOC16_HI:
8047 case R_PPC64_TOC16_HA:
8048 case R_PPC64_TOC16_DS:
8049 case R_PPC64_TOC16_LO_DS:
8050 /* In case we're taking addresses of toc entries. */
8051 case R_PPC64_ADDR64:
8052 break;
8053
8054 default:
8055 continue;
8056 }
8057
8058 r_symndx = ELF64_R_SYM (rel->r_info);
8059 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8060 r_symndx, ibfd))
8061 {
8062 free (used);
8063 goto error_ret;
8064 }
8065
8066 if (sym_sec != toc)
8067 continue;
8068
8069 if (h != NULL)
8070 val = h->root.u.def.value;
8071 else
8072 val = sym->st_value;
8073 val += rel->r_addend;
8074
8075 if (val >= toc->size)
8076 continue;
8077
8078 /* For the toc section, we only mark as used if
8079 this entry itself isn't unused. */
8080 if (sec == toc
8081 && !used[val >> 3]
8082 && (used[rel->r_offset >> 3]
8083 || !skip[rel->r_offset >> 3]))
8084 /* Do all the relocs again, to catch reference
8085 chains. */
8086 repeat = 1;
8087
8088 used[val >> 3] = 1;
8089 }
8090 while (repeat);
8091 }
8092
8093 /* Merge the used and skip arrays. Assume that TOC
8094 doublewords not appearing as either used or unused belong
8095 to to an entry more than one doubleword in size. */
8096 for (drop = skip, keep = used, last = 0, some_unused = 0;
8097 drop < skip + (toc->size + 7) / 8;
8098 ++drop, ++keep)
8099 {
8100 if (*keep)
8101 {
8102 *drop = 0;
8103 last = 0;
8104 }
8105 else if (*drop)
8106 {
8107 some_unused = 1;
8108 last = 1;
8109 }
8110 else
8111 *drop = last;
8112 }
8113
8114 free (used);
8115
8116 if (some_unused)
8117 {
8118 bfd_byte *contents, *src;
8119 unsigned long off;
8120
8121 /* Shuffle the toc contents, and at the same time convert the
8122 skip array from booleans into offsets. */
8123 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
8124 goto error_ret;
8125
8126 elf_section_data (toc)->this_hdr.contents = contents;
8127
8128 for (src = contents, off = 0, drop = skip;
8129 src < contents + toc->size;
8130 src += 8, ++drop)
8131 {
8132 if (*drop)
8133 {
8134 *drop = (unsigned long) -1;
8135 off += 8;
8136 }
8137 else if (off != 0)
8138 {
8139 *drop = off;
8140 memcpy (src - off, src, 8);
8141 }
8142 }
8143 toc->rawsize = toc->size;
8144 toc->size = src - contents - off;
8145
92b7a70f
AM
8146 if (toc->reloc_count != 0)
8147 {
8148 Elf_Internal_Rela *wrel;
8149 bfd_size_type sz;
c5614fa4 8150
92b7a70f
AM
8151 /* Read toc relocs. */
8152 relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
8153 TRUE);
8154 if (relstart == NULL)
8155 goto error_ret;
8156
8157 /* Remove unused toc relocs, and adjust those we keep. */
8158 wrel = relstart;
8159 for (rel = relstart; rel < relstart + toc->reloc_count; ++rel)
8160 if (skip[rel->r_offset >> 3] != (unsigned long) -1)
8161 {
8162 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
8163 wrel->r_info = rel->r_info;
8164 wrel->r_addend = rel->r_addend;
8165 ++wrel;
8166 }
8c1d1bb8
AM
8167 else if (!dec_dynrel_count (rel->r_info, toc, info,
8168 &local_syms, NULL, NULL))
8169 goto error_ret;
35090471 8170
92b7a70f
AM
8171 toc->reloc_count = wrel - relstart;
8172 sz = elf_section_data (toc)->rel_hdr.sh_entsize;
8173 elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz;
8174 BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL);
8175 }
c5614fa4
AM
8176
8177 /* Adjust addends for relocs against the toc section sym. */
8178 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
8179 {
8180 if (sec->reloc_count == 0
8181 || elf_discarded_section (sec))
8182 continue;
8183
8184 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
8185 TRUE);
8186 if (relstart == NULL)
8187 goto error_ret;
8188
8189 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
8190 {
8191 enum elf_ppc64_reloc_type r_type;
8192 unsigned long r_symndx;
8193 asection *sym_sec;
8194 struct elf_link_hash_entry *h;
8195 Elf_Internal_Sym *sym;
8196
8197 r_type = ELF64_R_TYPE (rel->r_info);
8198 switch (r_type)
8199 {
8200 default:
8201 continue;
8202
8203 case R_PPC64_TOC16:
8204 case R_PPC64_TOC16_LO:
8205 case R_PPC64_TOC16_HI:
8206 case R_PPC64_TOC16_HA:
8207 case R_PPC64_TOC16_DS:
8208 case R_PPC64_TOC16_LO_DS:
8209 case R_PPC64_ADDR64:
8210 break;
8211 }
8212
8213 r_symndx = ELF64_R_SYM (rel->r_info);
8214 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8215 r_symndx, ibfd))
8216 goto error_ret;
8217
8218 if (sym_sec != toc || h != NULL || sym->st_value != 0)
8219 continue;
8220
8221 rel->r_addend -= skip[rel->r_addend >> 3];
8222 }
8223 }
8224
8225 /* We shouldn't have local or global symbols defined in the TOC,
8226 but handle them anyway. */
8227 if (local_syms != NULL)
8228 {
8229 Elf_Internal_Sym *sym;
8230
8231 for (sym = local_syms;
8232 sym < local_syms + symtab_hdr->sh_info;
8233 ++sym)
cb33740c 8234 if (sym->st_value != 0
c5614fa4
AM
8235 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
8236 {
8237 if (skip[sym->st_value >> 3] != (unsigned long) -1)
8238 sym->st_value -= skip[sym->st_value >> 3];
8239 else
8240 {
8241 (*_bfd_error_handler)
8242 (_("%s defined in removed toc entry"),
26c61ae5
L
8243 bfd_elf_sym_name (ibfd, symtab_hdr, sym,
8244 NULL));
c5614fa4
AM
8245 sym->st_value = 0;
8246 sym->st_shndx = SHN_ABS;
8247 }
8248 symtab_hdr->contents = (unsigned char *) local_syms;
8249 }
8250 }
8251
8252 /* Finally, adjust any global syms defined in the toc. */
8253 if (toc_inf.global_toc_syms)
8254 {
8255 toc_inf.toc = toc;
8256 toc_inf.skip = skip;
8257 toc_inf.global_toc_syms = FALSE;
8258 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
8259 &toc_inf);
8260 }
8261 }
8262
8263 if (local_syms != NULL
8264 && symtab_hdr->contents != (unsigned char *) local_syms)
8265 {
8266 if (!info->keep_memory)
8267 free (local_syms);
8268 else
8269 symtab_hdr->contents = (unsigned char *) local_syms;
8270 }
8271 free (skip);
8272 }
8273
8274 return TRUE;
8275}
8276
927be08e
AM
8277/* Allocate space for one GOT entry. */
8278
8279static void
8280allocate_got (struct elf_link_hash_entry *h,
8281 struct bfd_link_info *info,
8282 struct got_entry *gent)
8283{
8284 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8285 bfd_boolean dyn;
8286 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
8287 int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)
8288 ? 16 : 8);
8289 int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD
8290 ? 2 : 1) * sizeof (Elf64_External_Rela);
8291 asection *got = ppc64_elf_tdata (gent->owner)->got;
8292
8293 gent->got.offset = got->size;
8294 got->size += entsize;
8295
8296 dyn = htab->elf.dynamic_sections_created;
8297 if ((info->shared
8298 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
8299 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8300 || h->root.type != bfd_link_hash_undefweak))
8301 {
8302 asection *relgot = ppc64_elf_tdata (gent->owner)->relgot;
8303 relgot->size += rentsize;
8304 }
8305 else if (h->type == STT_GNU_IFUNC)
8306 {
8307 asection *relgot = htab->reliplt;
8308 relgot->size += rentsize;
8309 htab->got_reli_size += rentsize;
8310 }
8311}
8312
7865406b
AM
8313/* This function merges got entries in the same toc group. */
8314
8315static void
8316merge_got_entries (struct got_entry **pent)
8317{
8318 struct got_entry *ent, *ent2;
8319
8320 for (ent = *pent; ent != NULL; ent = ent->next)
8321 if (!ent->is_indirect)
8322 for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next)
8323 if (!ent2->is_indirect
8324 && ent2->addend == ent->addend
8325 && ent2->tls_type == ent->tls_type
8326 && elf_gp (ent2->owner) == elf_gp (ent->owner))
8327 {
8328 ent2->is_indirect = TRUE;
8329 ent2->got.ent = ent;
8330 }
8331}
8332
65f38f15
AM
8333/* Allocate space in .plt, .got and associated reloc sections for
8334 dynamic relocs. */
5bd4f169 8335
b34976b6 8336static bfd_boolean
4ce794b7 8337allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 8338{
65f38f15
AM
8339 struct bfd_link_info *info;
8340 struct ppc_link_hash_table *htab;
5bd4f169 8341 asection *s;
65f38f15
AM
8342 struct ppc_link_hash_entry *eh;
8343 struct ppc_dyn_relocs *p;
0b8bcf0d 8344 struct got_entry **pgent, *gent;
5bd4f169 8345
e92d460e 8346 if (h->root.type == bfd_link_hash_indirect)
b34976b6 8347 return TRUE;
5bd4f169 8348
e92d460e
AM
8349 if (h->root.type == bfd_link_hash_warning)
8350 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8351
65f38f15
AM
8352 info = (struct bfd_link_info *) inf;
8353 htab = ppc_hash_table (info);
4dfe6ac6
NC
8354 if (htab == NULL)
8355 return FALSE;
5bd4f169 8356
e054468f
AM
8357 if ((htab->elf.dynamic_sections_created
8358 && h->dynindx != -1
8359 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
8360 || h->type == STT_GNU_IFUNC)
5bd4f169 8361 {
411e1bfb
AM
8362 struct plt_entry *pent;
8363 bfd_boolean doneone = FALSE;
8364 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
8365 if (pent->plt.refcount > 0)
8366 {
25f23106
AM
8367 if (!htab->elf.dynamic_sections_created
8368 || h->dynindx == -1)
e054468f
AM
8369 {
8370 s = htab->iplt;
8371 pent->plt.offset = s->size;
8372 s->size += PLT_ENTRY_SIZE;
8373 s = htab->reliplt;
8374 }
8375 else
8376 {
8377 /* If this is the first .plt entry, make room for the special
8378 first entry. */
8379 s = htab->plt;
8380 if (s->size == 0)
8381 s->size += PLT_INITIAL_ENTRY_SIZE;
8382
8383 pent->plt.offset = s->size;
8384
8385 /* Make room for this entry. */
8386 s->size += PLT_ENTRY_SIZE;
8387
8388 /* Make room for the .glink code. */
8389 s = htab->glink;
8390 if (s->size == 0)
8391 s->size += GLINK_CALL_STUB_SIZE;
8392 /* We need bigger stubs past index 32767. */
8393 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
8394 s->size += 4;
8395 s->size += 2*4;
8396
8397 /* We also need to make an entry in the .rela.plt section. */
8398 s = htab->relplt;
8399 }
eea6121a 8400 s->size += sizeof (Elf64_External_Rela);
411e1bfb
AM
8401 doneone = TRUE;
8402 }
8403 else
8404 pent->plt.offset = (bfd_vma) -1;
8405 if (!doneone)
65f38f15 8406 {
411e1bfb 8407 h->plt.plist = NULL;
f5385ebf 8408 h->needs_plt = 0;
65f38f15
AM
8409 }
8410 }
8411 else
8412 {
411e1bfb 8413 h->plt.plist = NULL;
f5385ebf 8414 h->needs_plt = 0;
65f38f15
AM
8415 }
8416
951fd09b
AM
8417 eh = (struct ppc_link_hash_entry *) h;
8418 /* Run through the TLS GD got entries first if we're changing them
8419 to TPREL. */
e7b938ca 8420 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM
8421 for (gent = h->got.glist; gent != NULL; gent = gent->next)
8422 if (gent->got.refcount > 0
8423 && (gent->tls_type & TLS_GD) != 0)
8424 {
8425 /* This was a GD entry that has been converted to TPREL. If
8426 there happens to be a TPREL entry we can use that one. */
8427 struct got_entry *ent;
8428 for (ent = h->got.glist; ent != NULL; ent = ent->next)
8429 if (ent->got.refcount > 0
8430 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM
8431 && ent->addend == gent->addend
8432 && ent->owner == gent->owner)
951fd09b
AM
8433 {
8434 gent->got.refcount = 0;
8435 break;
8436 }
8437
8438 /* If not, then we'll be using our own TPREL entry. */
8439 if (gent->got.refcount != 0)
8440 gent->tls_type = TLS_TLS | TLS_TPREL;
8441 }
8442
7865406b
AM
8443 /* Remove any list entry that won't generate a word in the GOT before
8444 we call merge_got_entries. Otherwise we risk merging to empty
8445 entries. */
0b8bcf0d
AM
8446 pgent = &h->got.glist;
8447 while ((gent = *pgent) != NULL)
411e1bfb 8448 if (gent->got.refcount > 0)
7865406b
AM
8449 {
8450 if ((gent->tls_type & TLS_LD) != 0
8451 && !h->def_dynamic)
8452 {
8453 ppc64_tlsld_got (gent->owner)->got.refcount += 1;
8454 *pgent = gent->next;
8455 }
8456 else
8457 pgent = &gent->next;
8458 }
8459 else
8460 *pgent = gent->next;
8461
8462 if (!htab->do_multi_toc)
8463 merge_got_entries (&h->got.glist);
8464
8465 for (gent = h->got.glist; gent != NULL; gent = gent->next)
8466 if (!gent->is_indirect)
411e1bfb
AM
8467 {
8468 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM
8469 Undefined weak syms won't yet be marked as dynamic,
8470 nor will all TLS symbols. */
411e1bfb 8471 if (h->dynindx == -1
b099ab9f 8472 && !h->forced_local
25f23106 8473 && h->type != STT_GNU_IFUNC
b099ab9f 8474 && htab->elf.dynamic_sections_created)
411e1bfb 8475 {
c152c796 8476 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM
8477 return FALSE;
8478 }
65f38f15 8479
0c8d6e5c 8480 if (!is_ppc64_elf (gent->owner))
927be08e 8481 abort ();
0ffa91dd 8482
927be08e 8483 allocate_got (h, info, gent);
411e1bfb 8484 }
65f38f15 8485
b099ab9f 8486 if (eh->dyn_relocs == NULL
25f23106
AM
8487 || (!htab->elf.dynamic_sections_created
8488 && h->type != STT_GNU_IFUNC))
b34976b6 8489 return TRUE;
65f38f15
AM
8490
8491 /* In the shared -Bsymbolic case, discard space allocated for
8492 dynamic pc-relative relocs against symbols which turn out to be
8493 defined in regular objects. For the normal shared case, discard
8494 space for relocs that have become local due to symbol visibility
8495 changes. */
8496
8497 if (info->shared)
8498 {
9c7a29a3 8499 /* Relocs that use pc_count are those that appear on a call insn,
1d483afe 8500 or certain REL relocs (see must_be_dyn_reloc) that can be
9c7a29a3
AM
8501 generated via assembly. We want calls to protected symbols to
8502 resolve directly to the function rather than going via the plt.
8503 If people want function pointer comparisons to work as expected
8504 then they should avoid writing weird assembly. */
09695f56 8505 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM
8506 {
8507 struct ppc_dyn_relocs **pp;
8508
8509 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 8510 {
65f38f15
AM
8511 p->count -= p->pc_count;
8512 p->pc_count = 0;
8513 if (p->count == 0)
8514 *pp = p->next;
8515 else
8516 pp = &p->next;
5bd4f169 8517 }
65f38f15 8518 }
4e795f50
AM
8519
8520 /* Also discard relocs on undefined weak syms with non-default
8521 visibility. */
cab87ef9
AM
8522 if (eh->dyn_relocs != NULL
8523 && h->root.type == bfd_link_hash_undefweak)
dfbb6ac9
AM
8524 {
8525 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
8526 eh->dyn_relocs = NULL;
8527
8528 /* Make sure this symbol is output as a dynamic symbol.
8529 Undefined weak syms won't yet be marked as dynamic. */
8530 else if (h->dynindx == -1
8531 && !h->forced_local)
8532 {
8533 if (! bfd_elf_link_record_dynamic_symbol (info, h))
8534 return FALSE;
8535 }
8536 }
65f38f15 8537 }
25f23106
AM
8538 else if (h->type == STT_GNU_IFUNC)
8539 {
8540 if (!h->non_got_ref)
8541 eh->dyn_relocs = NULL;
8542 }
f4656909 8543 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM
8544 {
8545 /* For the non-shared case, discard space for relocs against
8546 symbols which turn out to need copy relocs or are not
8547 dynamic. */
8548
f5385ebf 8549 if (!h->non_got_ref
f5385ebf 8550 && !h->def_regular)
65f38f15
AM
8551 {
8552 /* Make sure this symbol is output as a dynamic symbol.
8553 Undefined weak syms won't yet be marked as dynamic. */
8554 if (h->dynindx == -1
f5385ebf 8555 && !h->forced_local)
65f38f15 8556 {
c152c796 8557 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 8558 return FALSE;
65f38f15
AM
8559 }
8560
8561 /* If that succeeded, we know we'll be keeping all the
8562 relocs. */
8563 if (h->dynindx != -1)
8564 goto keep;
8565 }
8566
8567 eh->dyn_relocs = NULL;
8568
ec338859 8569 keep: ;
65f38f15
AM
8570 }
8571
8572 /* Finally, allocate space. */
8573 for (p = eh->dyn_relocs; p != NULL; p = p->next)
8574 {
8575 asection *sreloc = elf_section_data (p->sec)->sreloc;
25f23106
AM
8576 if (!htab->elf.dynamic_sections_created)
8577 sreloc = htab->reliplt;
eea6121a 8578 sreloc->size += p->count * sizeof (Elf64_External_Rela);
65f38f15
AM
8579 }
8580
b34976b6 8581 return TRUE;
65f38f15
AM
8582}
8583
8584/* Find any dynamic relocs that apply to read-only sections. */
8585
b34976b6 8586static bfd_boolean
4ce794b7 8587readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM
8588{
8589 struct ppc_link_hash_entry *eh;
8590 struct ppc_dyn_relocs *p;
8591
e92d460e
AM
8592 if (h->root.type == bfd_link_hash_warning)
8593 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8594
65f38f15
AM
8595 eh = (struct ppc_link_hash_entry *) h;
8596 for (p = eh->dyn_relocs; p != NULL; p = p->next)
8597 {
8598 asection *s = p->sec->output_section;
8599
8600 if (s != NULL && (s->flags & SEC_READONLY) != 0)
8601 {
4ce794b7 8602 struct bfd_link_info *info = inf;
65f38f15
AM
8603
8604 info->flags |= DF_TEXTREL;
8605
8606 /* Not an error, just cut short the traversal. */
b34976b6 8607 return FALSE;
65f38f15
AM
8608 }
8609 }
b34976b6 8610 return TRUE;
65f38f15
AM
8611}
8612
8613/* Set the sizes of the dynamic sections. */
8614
b34976b6 8615static bfd_boolean
4ce794b7
AM
8616ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
8617 struct bfd_link_info *info)
65f38f15
AM
8618{
8619 struct ppc_link_hash_table *htab;
8620 bfd *dynobj;
8621 asection *s;
b34976b6 8622 bfd_boolean relocs;
65f38f15 8623 bfd *ibfd;
7865406b 8624 struct got_entry *first_tlsld;
65f38f15
AM
8625
8626 htab = ppc_hash_table (info);
4dfe6ac6
NC
8627 if (htab == NULL)
8628 return FALSE;
8629
65f38f15
AM
8630 dynobj = htab->elf.dynobj;
8631 if (dynobj == NULL)
8632 abort ();
8633
8634 if (htab->elf.dynamic_sections_created)
8635 {
8636 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 8637 if (info->executable)
65f38f15
AM
8638 {
8639 s = bfd_get_section_by_name (dynobj, ".interp");
8640 if (s == NULL)
8641 abort ();
eea6121a 8642 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM
8643 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
8644 }
8645 }
8646
8647 /* Set up .got offsets for local syms, and space for local dynamic
8648 relocs. */
8649 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8650 {
411e1bfb
AM
8651 struct got_entry **lgot_ents;
8652 struct got_entry **end_lgot_ents;
e054468f
AM
8653 struct plt_entry **local_plt;
8654 struct plt_entry **end_local_plt;
f961d9dd 8655 unsigned char *lgot_masks;
65f38f15
AM
8656 bfd_size_type locsymcount;
8657 Elf_Internal_Shdr *symtab_hdr;
8658 asection *srel;
8659
0c8d6e5c 8660 if (!is_ppc64_elf (ibfd))
65f38f15
AM
8661 continue;
8662
8663 for (s = ibfd->sections; s != NULL; s = s->next)
8664 {
ec338859 8665 struct ppc_dyn_relocs *p;
65f38f15 8666
6edfbbad 8667 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
65f38f15 8668 {
ec338859
AM
8669 if (!bfd_is_abs_section (p->sec)
8670 && bfd_is_abs_section (p->sec->output_section))
8671 {
8672 /* Input section has been discarded, either because
8673 it is a copy of a linkonce section or due to
8674 linker script /DISCARD/, so we'll be discarding
8675 the relocs too. */
8676 }
248866a8 8677 else if (p->count != 0)
ec338859
AM
8678 {
8679 srel = elf_section_data (p->sec)->sreloc;
25f23106
AM
8680 if (!htab->elf.dynamic_sections_created)
8681 srel = htab->reliplt;
eea6121a 8682 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM
8683 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
8684 info->flags |= DF_TEXTREL;
ec338859 8685 }
65f38f15
AM
8686 }
8687 }
8688
411e1bfb
AM
8689 lgot_ents = elf_local_got_ents (ibfd);
8690 if (!lgot_ents)
65f38f15
AM
8691 continue;
8692
0ffa91dd 8693 symtab_hdr = &elf_symtab_hdr (ibfd);
65f38f15 8694 locsymcount = symtab_hdr->sh_info;
411e1bfb 8695 end_lgot_ents = lgot_ents + locsymcount;
e054468f
AM
8696 local_plt = (struct plt_entry **) end_lgot_ents;
8697 end_local_plt = local_plt + locsymcount;
f961d9dd 8698 lgot_masks = (unsigned char *) end_local_plt;
e717da7e
AM
8699 s = ppc64_elf_tdata (ibfd)->got;
8700 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 8701 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 8702 {
0b8bcf0d 8703 struct got_entry **pent, *ent;
411e1bfb 8704
0b8bcf0d
AM
8705 pent = lgot_ents;
8706 while ((ent = *pent) != NULL)
411e1bfb
AM
8707 if (ent->got.refcount > 0)
8708 {
e7b938ca 8709 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 8710 {
927be08e 8711 ppc64_tlsld_got (ibfd)->got.refcount += 1;
0b8bcf0d 8712 *pent = ent->next;
411e1bfb
AM
8713 }
8714 else
8715 {
25f23106 8716 unsigned int num = 1;
eea6121a 8717 ent->got.offset = s->size;
e7b938ca 8718 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
25f23106
AM
8719 num = 2;
8720 s->size += num * 8;
8721 if (info->shared)
8722 srel->size += num * sizeof (Elf64_External_Rela);
8723 else if ((*lgot_masks & PLT_IFUNC) != 0)
927be08e
AM
8724 {
8725 htab->reliplt->size
8726 += num * sizeof (Elf64_External_Rela);
8727 htab->got_reli_size
8728 += num * sizeof (Elf64_External_Rela);
8729 }
0b8bcf0d 8730 pent = &ent->next;
411e1bfb
AM
8731 }
8732 }
8733 else
0b8bcf0d 8734 *pent = ent->next;
65f38f15 8735 }
e054468f
AM
8736
8737 /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */
8738 for (; local_plt < end_local_plt; ++local_plt)
8739 {
8740 struct plt_entry *ent;
8741
8742 for (ent = *local_plt; ent != NULL; ent = ent->next)
8743 if (ent->plt.refcount > 0)
8744 {
91d6fa6a 8745 s = htab->iplt;
e054468f
AM
8746 ent->plt.offset = s->size;
8747 s->size += PLT_ENTRY_SIZE;
8748
25f23106 8749 htab->reliplt->size += sizeof (Elf64_External_Rela);
e054468f
AM
8750 }
8751 else
8752 ent->plt.offset = (bfd_vma) -1;
8753 }
65f38f15
AM
8754 }
8755
8756 /* Allocate global sym .plt and .got entries, and space for global
8757 sym dynamic relocs. */
4ce794b7 8758 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15 8759
7865406b 8760 first_tlsld = NULL;
102890f0
AM
8761 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8762 {
7865406b
AM
8763 struct got_entry *ent;
8764
0c8d6e5c 8765 if (!is_ppc64_elf (ibfd))
102890f0
AM
8766 continue;
8767
7865406b
AM
8768 ent = ppc64_tlsld_got (ibfd);
8769 if (ent->got.refcount > 0)
102890f0 8770 {
7865406b 8771 if (!htab->do_multi_toc && first_tlsld != NULL)
102890f0 8772 {
7865406b
AM
8773 ent->is_indirect = TRUE;
8774 ent->got.ent = first_tlsld;
8775 }
8776 else
8777 {
8778 if (first_tlsld == NULL)
8779 first_tlsld = ent;
8780 s = ppc64_elf_tdata (ibfd)->got;
8781 ent->got.offset = s->size;
8782 ent->owner = ibfd;
8783 s->size += 16;
8784 if (info->shared)
8785 {
8786 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
8787 srel->size += sizeof (Elf64_External_Rela);
8788 }
102890f0
AM
8789 }
8790 }
8791 else
7865406b 8792 ent->got.offset = (bfd_vma) -1;
102890f0
AM
8793 }
8794
65f38f15
AM
8795 /* We now have determined the sizes of the various dynamic sections.
8796 Allocate memory for them. */
b34976b6 8797 relocs = FALSE;
65f38f15
AM
8798 for (s = dynobj->sections; s != NULL; s = s->next)
8799 {
8800 if ((s->flags & SEC_LINKER_CREATED) == 0)
8801 continue;
8802
4ce794b7 8803 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM
8804 /* These haven't been allocated yet; don't strip. */
8805 continue;
e717da7e
AM
8806 else if (s == htab->got
8807 || s == htab->plt
e054468f 8808 || s == htab->iplt
c456f082
AM
8809 || s == htab->glink
8810 || s == htab->dynbss)
65f38f15
AM
8811 {
8812 /* Strip this section if we don't need it; see the
8813 comment below. */
5bd4f169 8814 }
70cc837d 8815 else if (CONST_STRNEQ (s->name, ".rela"))
5bd4f169 8816 {
c456f082 8817 if (s->size != 0)
5bd4f169 8818 {
4ce794b7 8819 if (s != htab->relplt)
b34976b6 8820 relocs = TRUE;
5bd4f169
AM
8821
8822 /* We use the reloc_count field as a counter if we need
8823 to copy relocs into the output file. */
8824 s->reloc_count = 0;
8825 }
8826 }
65f38f15 8827 else
5bd4f169
AM
8828 {
8829 /* It's not one of our sections, so don't allocate space. */
8830 continue;
8831 }
8832
eea6121a 8833 if (s->size == 0)
5bd4f169 8834 {
c456f082
AM
8835 /* If we don't need this section, strip it from the
8836 output file. This is mostly to handle .rela.bss and
8837 .rela.plt. We must create both sections in
8838 create_dynamic_sections, because they must be created
8839 before the linker maps input sections to output
8840 sections. The linker does that before
8841 adjust_dynamic_symbol is called, and it is that
8842 function which decides whether anything needs to go
8843 into these sections. */
8423293d 8844 s->flags |= SEC_EXCLUDE;
5bd4f169
AM
8845 continue;
8846 }
8847
c456f082 8848 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5f333394
AM
8849 continue;
8850
65f38f15
AM
8851 /* Allocate memory for the section contents. We use bfd_zalloc
8852 here in case unused entries are not reclaimed before the
8853 section's contents are written out. This should not happen,
411e1bfb
AM
8854 but this way if it does we get a R_PPC64_NONE reloc in .rela
8855 sections instead of garbage.
8856 We also rely on the section contents being zero when writing
8857 the GOT. */
eea6121a 8858 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 8859 if (s->contents == NULL)
b34976b6 8860 return FALSE;
5bd4f169
AM
8861 }
8862
e717da7e
AM
8863 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
8864 {
0c8d6e5c 8865 if (!is_ppc64_elf (ibfd))
7b53ace3
AM
8866 continue;
8867
e717da7e
AM
8868 s = ppc64_elf_tdata (ibfd)->got;
8869 if (s != NULL && s != htab->got)
8870 {
eea6121a 8871 if (s->size == 0)
8423293d 8872 s->flags |= SEC_EXCLUDE;
e717da7e
AM
8873 else
8874 {
eea6121a 8875 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM
8876 if (s->contents == NULL)
8877 return FALSE;
8878 }
8879 }
8880 s = ppc64_elf_tdata (ibfd)->relgot;
8881 if (s != NULL)
8882 {
eea6121a 8883 if (s->size == 0)
8423293d 8884 s->flags |= SEC_EXCLUDE;
e717da7e
AM
8885 else
8886 {
eea6121a 8887 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM
8888 if (s->contents == NULL)
8889 return FALSE;
8890 relocs = TRUE;
8891 s->reloc_count = 0;
8892 }
8893 }
8894 }
8895
e86ce104 8896 if (htab->elf.dynamic_sections_created)
5bd4f169
AM
8897 {
8898 /* Add some entries to the .dynamic section. We fill in the
8899 values later, in ppc64_elf_finish_dynamic_sections, but we
8900 must add the entries now so that we get the correct size for
8901 the .dynamic section. The DT_DEBUG entry is filled in by the
8902 dynamic linker and used by the debugger. */
dc810e39 8903#define add_dynamic_entry(TAG, VAL) \
5a580b3a 8904 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 8905
36af4a4e 8906 if (info->executable)
5bd4f169 8907 {
dc810e39 8908 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 8909 return FALSE;
5bd4f169
AM
8910 }
8911
eea6121a 8912 if (htab->plt != NULL && htab->plt->size != 0)
5bd4f169 8913 {
dc810e39
AM
8914 if (!add_dynamic_entry (DT_PLTGOT, 0)
8915 || !add_dynamic_entry (DT_PLTRELSZ, 0)
8916 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM
8917 || !add_dynamic_entry (DT_JMPREL, 0)
8918 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 8919 return FALSE;
5bd4f169
AM
8920 }
8921
19397422
AM
8922 if (NO_OPD_RELOCS)
8923 {
8924 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
8925 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 8926 return FALSE;
19397422
AM
8927 }
8928
a7f2871e
AM
8929 if (!htab->no_tls_get_addr_opt
8930 && htab->tls_get_addr_fd != NULL
8931 && htab->tls_get_addr_fd->elf.plt.plist != NULL
8932 && !add_dynamic_entry (DT_PPC64_TLSOPT, 0))
8933 return FALSE;
8934
5bd4f169
AM
8935 if (relocs)
8936 {
dc810e39
AM
8937 if (!add_dynamic_entry (DT_RELA, 0)
8938 || !add_dynamic_entry (DT_RELASZ, 0)
8939 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 8940 return FALSE;
5bd4f169 8941
65f38f15
AM
8942 /* If any dynamic relocs apply to a read-only section,
8943 then we need a DT_TEXTREL entry. */
248866a8 8944 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 8945 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 8946
65f38f15 8947 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 8948 {
65f38f15 8949 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 8950 return FALSE;
5bd4f169 8951 }
5bd4f169 8952 }
5bd4f169 8953 }
65f38f15 8954#undef add_dynamic_entry
5bd4f169 8955
b34976b6 8956 return TRUE;
5bd4f169
AM
8957}
8958
721956f4 8959/* Determine the type of stub needed, if any, for a call. */
5bd4f169 8960
4ce794b7
AM
8961static inline enum ppc_stub_type
8962ppc_type_of_stub (asection *input_sec,
8963 const Elf_Internal_Rela *rel,
8964 struct ppc_link_hash_entry **hash,
e054468f 8965 struct plt_entry **plt_ent,
4ce794b7 8966 bfd_vma destination)
5bd4f169 8967{
721956f4
AM
8968 struct ppc_link_hash_entry *h = *hash;
8969 bfd_vma location;
8970 bfd_vma branch_offset;
8971 bfd_vma max_branch_offset;
4ce794b7 8972 enum elf_ppc64_reloc_type r_type;
5bd4f169 8973
721956f4
AM
8974 if (h != NULL)
8975 {
e054468f 8976 struct plt_entry *ent;
7fe2b9a6 8977 struct ppc_link_hash_entry *fdh = h;
b31867b6
AM
8978 if (h->oh != NULL
8979 && h->oh->is_func_descriptor)
7b8f6675
AM
8980 {
8981 fdh = ppc_follow_link (h->oh);
8982 *hash = fdh;
8983 }
8387904d 8984
e054468f
AM
8985 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
8986 if (ent->addend == rel->r_addend
8987 && ent->plt.offset != (bfd_vma) -1)
8988 {
e054468f
AM
8989 *plt_ent = ent;
8990 return ppc_stub_plt_call;
8991 }
5bd4f169 8992
7fe2b9a6
AM
8993 /* Here, we know we don't have a plt entry. If we don't have a
8994 either a defined function descriptor or a defined entry symbol
8995 in a regular object file, then it is pointless trying to make
8996 any other type of stub. */
8997 if (!((fdh->elf.root.type == bfd_link_hash_defined
8998 || fdh->elf.root.type == bfd_link_hash_defweak)
8999 && fdh->elf.root.u.def.section->output_section != NULL)
9000 && !((h->elf.root.type == bfd_link_hash_defined
9001 || h->elf.root.type == bfd_link_hash_defweak)
9002 && h->elf.root.u.def.section->output_section != NULL))
721956f4 9003 return ppc_stub_none;
5d1634d7 9004 }
e054468f
AM
9005 else if (elf_local_got_ents (input_sec->owner) != NULL)
9006 {
9007 Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner);
9008 struct plt_entry **local_plt = (struct plt_entry **)
9009 elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info;
9010 unsigned long r_symndx = ELF64_R_SYM (rel->r_info);
9011
9012 if (local_plt[r_symndx] != NULL)
9013 {
9014 struct plt_entry *ent;
9015
9016 for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next)
9017 if (ent->addend == rel->r_addend
9018 && ent->plt.offset != (bfd_vma) -1)
9019 {
9020 *plt_ent = ent;
9021 return ppc_stub_plt_call;
9022 }
9023 }
9024 }
5d1634d7 9025
721956f4
AM
9026 /* Determine where the call point is. */
9027 location = (input_sec->output_offset
9028 + input_sec->output_section->vma
9029 + rel->r_offset);
5d1634d7 9030
721956f4
AM
9031 branch_offset = destination - location;
9032 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 9033
721956f4
AM
9034 /* Determine if a long branch stub is needed. */
9035 max_branch_offset = 1 << 25;
4ce794b7 9036 if (r_type != R_PPC64_REL24)
721956f4 9037 max_branch_offset = 1 << 15;
5d1634d7 9038
721956f4
AM
9039 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
9040 /* We need a stub. Figure out whether a long_branch or plt_branch
9041 is needed later. */
9042 return ppc_stub_long_branch;
5d1634d7 9043
721956f4 9044 return ppc_stub_none;
5d1634d7
AM
9045}
9046
9047/* Build a .plt call stub. */
9048
4ce794b7 9049static inline bfd_byte *
176a0d42 9050build_plt_stub (bfd *obfd, bfd_byte *p, int offset, Elf_Internal_Rela *r)
5d1634d7
AM
9051{
9052#define PPC_LO(v) ((v) & 0xffff)
9053#define PPC_HI(v) (((v) >> 16) & 0xffff)
9054#define PPC_HA(v) PPC_HI ((v) + 0x8000)
9055
ac2df442
AM
9056 if (PPC_HA (offset) != 0)
9057 {
176a0d42
AM
9058 if (r != NULL)
9059 {
9060 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
9061 r[1].r_offset = r[0].r_offset + 8;
9062 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
9063 r[1].r_addend = r[0].r_addend;
9064 if (PPC_HA (offset + 16) != PPC_HA (offset))
9065 {
9066 r[2].r_offset = r[1].r_offset + 4;
9067 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
9068 r[2].r_addend = r[0].r_addend;
9069 }
9070 else
9071 {
9072 r[2].r_offset = r[1].r_offset + 8;
9073 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
9074 r[2].r_addend = r[0].r_addend + 8;
9075 r[3].r_offset = r[2].r_offset + 4;
9076 r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
9077 r[3].r_addend = r[0].r_addend + 16;
9078 }
9079 }
ac2df442
AM
9080 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
9081 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
9082 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
9083 if (PPC_HA (offset + 16) != PPC_HA (offset))
9084 {
9085 bfd_put_32 (obfd, ADDI_R12_R12 | PPC_LO (offset), p), p += 4;
9086 offset = 0;
9087 }
9088 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
9089 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset + 8), p), p += 4;
9090 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset + 16), p), p += 4;
9091 bfd_put_32 (obfd, BCTR, p), p += 4;
9092 }
9093 else
9094 {
176a0d42
AM
9095 if (r != NULL)
9096 {
9097 r[0].r_offset += 4;
9098 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
9099 if (PPC_HA (offset + 16) != PPC_HA (offset))
9100 {
9101 r[1].r_offset = r[0].r_offset + 4;
9102 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
9103 r[1].r_addend = r[0].r_addend;
9104 }
9105 else
9106 {
9107 r[1].r_offset = r[0].r_offset + 8;
9108 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
9109 r[1].r_addend = r[0].r_addend + 16;
9110 r[2].r_offset = r[1].r_offset + 4;
9111 r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
9112 r[2].r_addend = r[0].r_addend + 8;
9113 }
9114 }
ac2df442
AM
9115 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
9116 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset), p), p += 4;
9117 if (PPC_HA (offset + 16) != PPC_HA (offset))
9118 {
9119 bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
9120 offset = 0;
9121 }
9122 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
9123 bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
9124 bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
9125 bfd_put_32 (obfd, BCTR, p), p += 4;
9126 }
5d1634d7
AM
9127 return p;
9128}
9129
a7f2871e
AM
9130/* Build a special .plt call stub for __tls_get_addr. */
9131
9132#define LD_R11_0R3 0xe9630000
9133#define LD_R12_0R3 0xe9830000
9134#define MR_R0_R3 0x7c601b78
9135#define CMPDI_R11_0 0x2c2b0000
9136#define ADD_R3_R12_R13 0x7c6c6a14
9137#define BEQLR 0x4d820020
9138#define MR_R3_R0 0x7c030378
9139#define MFLR_R11 0x7d6802a6
9140#define STD_R11_0R1 0xf9610000
9141#define BCTRL 0x4e800421
9142#define LD_R11_0R1 0xe9610000
9143#define LD_R2_0R1 0xe8410000
9144#define MTLR_R11 0x7d6803a6
9145
9146static inline bfd_byte *
9147build_tls_get_addr_stub (bfd *obfd, bfd_byte *p, int offset,
9148 Elf_Internal_Rela *r)
9149{
9150 bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4;
9151 bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4;
9152 bfd_put_32 (obfd, MR_R0_R3, p), p += 4;
9153 bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4;
9154 bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4;
9155 bfd_put_32 (obfd, BEQLR, p), p += 4;
9156 bfd_put_32 (obfd, MR_R3_R0, p), p += 4;
9157 bfd_put_32 (obfd, MFLR_R11, p), p += 4;
9158 bfd_put_32 (obfd, STD_R11_0R1 + 32, p), p += 4;
9159
9160 if (r != NULL)
9161 r[0].r_offset += 9 * 4;
9162 p = build_plt_stub (obfd, p, offset, r);
9163 bfd_put_32 (obfd, BCTRL, p - 4);
9164
9165 bfd_put_32 (obfd, LD_R11_0R1 + 32, p), p += 4;
9166 bfd_put_32 (obfd, LD_R2_0R1 + 40, p), p += 4;
9167 bfd_put_32 (obfd, MTLR_R11, p), p += 4;
9168 bfd_put_32 (obfd, BLR, p), p += 4;
9169
9170 return p;
9171}
9172
176a0d42
AM
9173static Elf_Internal_Rela *
9174get_relocs (asection *sec, int count)
9175{
9176 Elf_Internal_Rela *relocs;
9177 struct bfd_elf_section_data *elfsec_data;
9178
9179 elfsec_data = elf_section_data (sec);
9180 relocs = elfsec_data->relocs;
9181 if (relocs == NULL)
9182 {
9183 bfd_size_type relsize;
9184 relsize = sec->reloc_count * sizeof (*relocs);
9185 relocs = bfd_alloc (sec->owner, relsize);
9186 if (relocs == NULL)
9187 return NULL;
9188 elfsec_data->relocs = relocs;
9189 elfsec_data->rel_hdr.sh_size = (sec->reloc_count
9190 * sizeof (Elf64_External_Rela));
9191 elfsec_data->rel_hdr.sh_entsize = sizeof (Elf64_External_Rela);
9192 sec->reloc_count = 0;
9193 }
9194 relocs += sec->reloc_count;
9195 sec->reloc_count += count;
9196 return relocs;
9197}
9198
b34976b6 9199static bfd_boolean
4ce794b7 9200ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 9201{
721956f4
AM
9202 struct ppc_stub_hash_entry *stub_entry;
9203 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM
9204 struct bfd_link_info *info;
9205 struct ppc_link_hash_table *htab;
721956f4
AM
9206 bfd_byte *loc;
9207 bfd_byte *p;
ee75fd95 9208 bfd_vma dest, off;
721956f4 9209 int size;
176a0d42 9210 Elf_Internal_Rela *r;
e054468f 9211 asection *plt;
5d1634d7 9212
721956f4
AM
9213 /* Massage our args to the form they really have. */
9214 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 9215 info = in_arg;
5d1634d7 9216
5d1634d7 9217 htab = ppc_hash_table (info);
4dfe6ac6
NC
9218 if (htab == NULL)
9219 return FALSE;
5d1634d7 9220
721956f4 9221 /* Make a note of the offset within the stubs for this entry. */
eea6121a 9222 stub_entry->stub_offset = stub_entry->stub_sec->size;
97b639ba 9223 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 9224
4ce794b7 9225 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 9226 switch (stub_entry->stub_type)
5d1634d7 9227 {
721956f4 9228 case ppc_stub_long_branch:
ad8e1ba5 9229 case ppc_stub_long_branch_r2off:
721956f4 9230 /* Branches are relative. This is where we are going to. */
ee75fd95
AM
9231 off = dest = (stub_entry->target_value
9232 + stub_entry->target_section->output_offset
9233 + stub_entry->target_section->output_section->vma);
5d1634d7 9234
721956f4
AM
9235 /* And this is where we are coming from. */
9236 off -= (stub_entry->stub_offset
97b639ba
AM
9237 + stub_entry->stub_sec->output_offset
9238 + stub_entry->stub_sec->output_section->vma);
e86ce104 9239
ac2df442
AM
9240 size = 4;
9241 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
ad8e1ba5
AM
9242 {
9243 bfd_vma r2off;
9244
9245 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
9246 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 9247 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 9248 loc += 4;
ac2df442
AM
9249 size = 12;
9250 if (PPC_HA (r2off) != 0)
9251 {
9252 size = 16;
9253 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
9254 loc += 4;
9255 }
97b639ba 9256 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5 9257 loc += 4;
ac2df442 9258 off -= size - 4;
ad8e1ba5 9259 }
97b639ba 9260 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5 9261
5c3dead3
AM
9262 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
9263 {
9264 (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"),
9265 stub_entry->root.string);
9266 htab->stub_error = TRUE;
9267 return FALSE;
9268 }
ee75fd95
AM
9269
9270 if (info->emitrelocations)
9271 {
176a0d42
AM
9272 r = get_relocs (stub_entry->stub_sec, 1);
9273 if (r == NULL)
9274 return FALSE;
ee75fd95
AM
9275 r->r_offset = loc - stub_entry->stub_sec->contents;
9276 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
9277 r->r_addend = dest;
9278 if (stub_entry->h != NULL)
9279 {
9280 struct elf_link_hash_entry **hashes;
9281 unsigned long symndx;
9282 struct ppc_link_hash_entry *h;
9283
9284 hashes = elf_sym_hashes (htab->stub_bfd);
9285 if (hashes == NULL)
9286 {
9287 bfd_size_type hsize;
9288
9289 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
9290 hashes = bfd_zalloc (htab->stub_bfd, hsize);
9291 if (hashes == NULL)
9292 return FALSE;
9293 elf_sym_hashes (htab->stub_bfd) = hashes;
9294 htab->stub_globals = 1;
9295 }
9296 symndx = htab->stub_globals++;
9297 h = stub_entry->h;
9298 hashes[symndx] = &h->elf;
9299 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
9300 if (h->oh != NULL && h->oh->is_func)
b31867b6 9301 h = ppc_follow_link (h->oh);
ee75fd95
AM
9302 if (h->elf.root.u.def.section != stub_entry->target_section)
9303 /* H is an opd symbol. The addend must be zero. */
9304 r->r_addend = 0;
9305 else
9306 {
9307 off = (h->elf.root.u.def.value
9308 + h->elf.root.u.def.section->output_offset
9309 + h->elf.root.u.def.section->output_section->vma);
9310 r->r_addend -= off;
9311 }
9312 }
9313 }
721956f4 9314 break;
e86ce104 9315
721956f4 9316 case ppc_stub_plt_branch:
ad8e1ba5 9317 case ppc_stub_plt_branch_r2off:
721956f4
AM
9318 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
9319 stub_entry->root.string + 9,
b34976b6 9320 FALSE, FALSE);
721956f4
AM
9321 if (br_entry == NULL)
9322 {
9323 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
5c3dead3 9324 stub_entry->root.string);
b34976b6
AM
9325 htab->stub_error = TRUE;
9326 return FALSE;
721956f4
AM
9327 }
9328
176a0d42
AM
9329 dest = (stub_entry->target_value
9330 + stub_entry->target_section->output_offset
9331 + stub_entry->target_section->output_section->vma);
721956f4 9332
176a0d42 9333 bfd_put_64 (htab->brlt->owner, dest,
4ce794b7 9334 htab->brlt->contents + br_entry->offset);
721956f4 9335
f94498ff 9336 if (br_entry->iter == htab->stub_iteration)
721956f4 9337 {
f94498ff 9338 br_entry->iter = 0;
84f5d08e 9339
f94498ff 9340 if (htab->relbrlt != NULL)
84f5d08e 9341 {
f94498ff
AM
9342 /* Create a reloc for the branch lookup table entry. */
9343 Elf_Internal_Rela rela;
9344 bfd_byte *rl;
9345
9346 rela.r_offset = (br_entry->offset
9347 + htab->brlt->output_offset
9348 + htab->brlt->output_section->vma);
9349 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 9350 rela.r_addend = dest;
f94498ff
AM
9351
9352 rl = htab->relbrlt->contents;
9353 rl += (htab->relbrlt->reloc_count++
9354 * sizeof (Elf64_External_Rela));
9355 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
9356 }
9357 else if (info->emitrelocations)
9358 {
176a0d42
AM
9359 r = get_relocs (htab->brlt, 1);
9360 if (r == NULL)
9361 return FALSE;
9362 /* brlt, being SEC_LINKER_CREATED does not go through the
9363 normal reloc processing. Symbols and offsets are not
9364 translated from input file to output file form, so
9365 set up the offset per the output file. */
f94498ff
AM
9366 r->r_offset = (br_entry->offset
9367 + htab->brlt->output_offset
9368 + htab->brlt->output_section->vma);
9369 r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
176a0d42 9370 r->r_addend = dest;
84f5d08e 9371 }
84f5d08e 9372 }
721956f4 9373
176a0d42
AM
9374 dest = (br_entry->offset
9375 + htab->brlt->output_offset
9376 + htab->brlt->output_section->vma);
9377
9378 off = (dest
4ce794b7 9379 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 9380 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 9381
ad8e1ba5 9382 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM
9383 {
9384 (*_bfd_error_handler)
e86ce104 9385 (_("linkage table error against `%s'"),
721956f4 9386 stub_entry->root.string);
5d1634d7 9387 bfd_set_error (bfd_error_bad_value);
b34976b6
AM
9388 htab->stub_error = TRUE;
9389 return FALSE;
5d1634d7 9390 }
41bd81ab 9391
176a0d42
AM
9392 if (info->emitrelocations)
9393 {
9394 r = get_relocs (stub_entry->stub_sec, 1 + (PPC_HA (off) != 0));
9395 if (r == NULL)
9396 return FALSE;
9397 r[0].r_offset = loc - stub_entry->stub_sec->contents;
7cfbafbc
AM
9398 if (bfd_big_endian (info->output_bfd))
9399 r[0].r_offset += 2;
176a0d42
AM
9400 if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
9401 r[0].r_offset += 4;
9402 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
9403 r[0].r_addend = dest;
9404 if (PPC_HA (off) != 0)
9405 {
9406 r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA);
9407 r[1].r_offset = r[0].r_offset + 4;
9408 r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
9409 r[1].r_addend = r[0].r_addend;
9410 }
9411 }
9412
ad8e1ba5
AM
9413 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
9414 {
176a0d42 9415 if (PPC_HA (off) != 0)
ac2df442
AM
9416 {
9417 size = 16;
176a0d42 9418 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 9419 loc += 4;
176a0d42 9420 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (off), loc);
ac2df442
AM
9421 }
9422 else
9423 {
9424 size = 12;
176a0d42 9425 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (off), loc);
ac2df442 9426 }
ad8e1ba5
AM
9427 }
9428 else
9429 {
9430 bfd_vma r2off;
9431
9432 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
9433 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 9434 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 9435 loc += 4;
ac2df442 9436 size = 20;
176a0d42 9437 if (PPC_HA (off) != 0)
ac2df442
AM
9438 {
9439 size += 4;
176a0d42 9440 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (off), loc);
ac2df442 9441 loc += 4;
176a0d42 9442 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (off), loc);
ac2df442
AM
9443 loc += 4;
9444 }
9445 else
9446 {
176a0d42 9447 bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (off), loc);
ac2df442
AM
9448 loc += 4;
9449 }
9450
9451 if (PPC_HA (r2off) != 0)
9452 {
9453 size += 4;
9454 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
9455 loc += 4;
9456 }
97b639ba 9457 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM
9458 }
9459 loc += 4;
97b639ba 9460 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 9461 loc += 4;
97b639ba 9462 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 9463 break;
5d1634d7 9464
721956f4 9465 case ppc_stub_plt_call:
e054468f 9466 if (stub_entry->h != NULL
b31867b6
AM
9467 && stub_entry->h->is_func_descriptor
9468 && stub_entry->h->oh != NULL)
c862ae31 9469 {
b31867b6
AM
9470 struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh);
9471
9472 /* If the old-ABI "dot-symbol" is undefined make it weak so
9473 we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL.
9474 FIXME: We used to define the symbol on one of the call
9475 stubs instead, which is why we test symbol section id
9476 against htab->top_id in various places. Likely all
9477 these checks could now disappear. */
9478 if (fh->elf.root.type == bfd_link_hash_undefined)
9479 fh->elf.root.type = bfd_link_hash_undefweak;
c862ae31
AM
9480 }
9481
721956f4 9482 /* Now build the stub. */
e054468f 9483 dest = stub_entry->plt_ent->plt.offset & ~1;
176a0d42 9484 if (dest >= (bfd_vma) -2)
721956f4
AM
9485 abort ();
9486
e054468f 9487 plt = htab->plt;
25f23106
AM
9488 if (!htab->elf.dynamic_sections_created
9489 || stub_entry->h == NULL
9490 || stub_entry->h->elf.dynindx == -1)
e054468f
AM
9491 plt = htab->iplt;
9492
9493 dest += plt->output_offset + plt->output_section->vma;
9494
9495 if (stub_entry->h == NULL
9496 && (stub_entry->plt_ent->plt.offset & 1) == 0)
9497 {
9498 Elf_Internal_Rela rela;
9499 bfd_byte *rl;
9500
9501 rela.r_offset = dest;
25f23106 9502 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
e054468f
AM
9503 rela.r_addend = (stub_entry->target_value
9504 + stub_entry->target_section->output_offset
9505 + stub_entry->target_section->output_section->vma);
9506
25f23106
AM
9507 rl = (htab->reliplt->contents
9508 + (htab->reliplt->reloc_count++
9509 * sizeof (Elf64_External_Rela)));
9510 bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl);
e054468f
AM
9511 stub_entry->plt_ent->plt.offset |= 1;
9512 }
176a0d42
AM
9513
9514 off = (dest
e054468f 9515 - elf_gp (plt->output_section->owner)
176a0d42 9516 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 9517
ad8e1ba5 9518 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM
9519 {
9520 (*_bfd_error_handler)
9521 (_("linkage table error against `%s'"),
e054468f
AM
9522 stub_entry->h != NULL
9523 ? stub_entry->h->elf.root.root.string
9524 : "<local sym>");
721956f4 9525 bfd_set_error (bfd_error_bad_value);
b34976b6
AM
9526 htab->stub_error = TRUE;
9527 return FALSE;
721956f4
AM
9528 }
9529
176a0d42
AM
9530 r = NULL;
9531 if (info->emitrelocations)
9532 {
9533 r = get_relocs (stub_entry->stub_sec,
9534 (2 + (PPC_HA (off) != 0)
9535 + (PPC_HA (off + 16) == PPC_HA (off))));
9536 if (r == NULL)
9537 return FALSE;
9538 r[0].r_offset = loc - stub_entry->stub_sec->contents;
7cfbafbc
AM
9539 if (bfd_big_endian (info->output_bfd))
9540 r[0].r_offset += 2;
176a0d42
AM
9541 r[0].r_addend = dest;
9542 }
a7f2871e
AM
9543 if (stub_entry->h != NULL
9544 && (stub_entry->h == htab->tls_get_addr_fd
9545 || stub_entry->h == htab->tls_get_addr)
9546 && !htab->no_tls_get_addr_opt)
9547 p = build_tls_get_addr_stub (htab->stub_bfd, loc, off, r);
9548 else
9549 p = build_plt_stub (htab->stub_bfd, loc, off, r);
721956f4
AM
9550 size = p - loc;
9551 break;
9552
9553 default:
9554 BFD_FAIL ();
b34976b6 9555 return FALSE;
721956f4
AM
9556 }
9557
eea6121a 9558 stub_entry->stub_sec->size += size;
97b639ba 9559
ee75fd95 9560 if (htab->emit_stub_syms)
97b639ba
AM
9561 {
9562 struct elf_link_hash_entry *h;
ee75fd95
AM
9563 size_t len1, len2;
9564 char *name;
9565 const char *const stub_str[] = { "long_branch",
9566 "long_branch_r2off",
9567 "plt_branch",
9568 "plt_branch_r2off",
9569 "plt_call" };
9570
9571 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
9572 len2 = strlen (stub_entry->root.string);
9573 name = bfd_malloc (len1 + len2 + 2);
9574 if (name == NULL)
9575 return FALSE;
9576 memcpy (name, stub_entry->root.string, 9);
9577 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
9578 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
9579 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
97b639ba
AM
9580 if (h == NULL)
9581 return FALSE;
9582 if (h->root.type == bfd_link_hash_new)
9583 {
9584 h->root.type = bfd_link_hash_defined;
9585 h->root.u.def.section = stub_entry->stub_sec;
9586 h->root.u.def.value = stub_entry->stub_offset;
f5385ebf
AM
9587 h->ref_regular = 1;
9588 h->def_regular = 1;
9589 h->ref_regular_nonweak = 1;
9590 h->forced_local = 1;
9591 h->non_elf = 0;
97b639ba
AM
9592 }
9593 }
9594
b34976b6 9595 return TRUE;
721956f4
AM
9596}
9597
9598/* As above, but don't actually build the stub. Just bump offset so
9599 we know stub section sizes, and select plt_branch stubs where
9600 long_branch stubs won't do. */
9601
b34976b6 9602static bfd_boolean
4ce794b7 9603ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM
9604{
9605 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 9606 struct bfd_link_info *info;
721956f4
AM
9607 struct ppc_link_hash_table *htab;
9608 bfd_vma off;
9609 int size;
9610
9611 /* Massage our args to the form they really have. */
9612 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM
9613 info = in_arg;
9614
9615 htab = ppc_hash_table (info);
4dfe6ac6
NC
9616 if (htab == NULL)
9617 return FALSE;
721956f4
AM
9618
9619 if (stub_entry->stub_type == ppc_stub_plt_call)
9620 {
e054468f
AM
9621 asection *plt;
9622 off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1;
58ac9f71 9623 if (off >= (bfd_vma) -2)
411e1bfb 9624 abort ();
e054468f 9625 plt = htab->plt;
25f23106
AM
9626 if (!htab->elf.dynamic_sections_created
9627 || stub_entry->h == NULL
9628 || stub_entry->h->elf.dynindx == -1)
e054468f
AM
9629 plt = htab->iplt;
9630 off += (plt->output_offset
9631 + plt->output_section->vma
9632 - elf_gp (plt->output_section->owner)
ad8e1ba5 9633 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 9634
ad8e1ba5 9635 size = PLT_CALL_STUB_SIZE;
ac2df442
AM
9636 if (PPC_HA (off) == 0)
9637 size -= 4;
4ce794b7 9638 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4 9639 size += 4;
a7f2871e
AM
9640 if (stub_entry->h != NULL
9641 && (stub_entry->h == htab->tls_get_addr_fd
9642 || stub_entry->h == htab->tls_get_addr)
9643 && !htab->no_tls_get_addr_opt)
9644 size += 13 * 4;
176a0d42
AM
9645 if (info->emitrelocations)
9646 {
9647 stub_entry->stub_sec->reloc_count
9648 += 2 + (PPC_HA (off) != 0) + (PPC_HA (off + 16) == PPC_HA (off));
9649 stub_entry->stub_sec->flags |= SEC_RELOC;
9650 }
721956f4
AM
9651 }
9652 else
9653 {
ad8e1ba5
AM
9654 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
9655 variants. */
ac2df442
AM
9656 bfd_vma r2off = 0;
9657
721956f4
AM
9658 off = (stub_entry->target_value
9659 + stub_entry->target_section->output_offset
9660 + stub_entry->target_section->output_section->vma);
eea6121a 9661 off -= (stub_entry->stub_sec->size
721956f4
AM
9662 + stub_entry->stub_sec->output_offset
9663 + stub_entry->stub_sec->output_section->vma);
9664
ad8e1ba5
AM
9665 /* Reset the stub type from the plt variant in case we now
9666 can reach with a shorter stub. */
9667 if (stub_entry->stub_type >= ppc_stub_plt_branch)
9668 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
9669
9670 size = 4;
9671 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
9672 {
ac2df442
AM
9673 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
9674 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9675 size = 12;
9676 if (PPC_HA (r2off) != 0)
9677 size = 16;
9678 off -= size - 4;
ad8e1ba5
AM
9679 }
9680
9681 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM
9682 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
9683 {
9684 struct ppc_branch_hash_entry *br_entry;
9685
9686 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
9687 stub_entry->root.string + 9,
b34976b6 9688 TRUE, FALSE);
721956f4
AM
9689 if (br_entry == NULL)
9690 {
9691 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
5c3dead3 9692 stub_entry->root.string);
b34976b6
AM
9693 htab->stub_error = TRUE;
9694 return FALSE;
721956f4
AM
9695 }
9696
9697 if (br_entry->iter != htab->stub_iteration)
9698 {
9699 br_entry->iter = htab->stub_iteration;
eea6121a
AM
9700 br_entry->offset = htab->brlt->size;
9701 htab->brlt->size += 8;
63bc6f6c 9702
ee75fd95 9703 if (htab->relbrlt != NULL)
eea6121a 9704 htab->relbrlt->size += sizeof (Elf64_External_Rela);
84f5d08e
AM
9705 else if (info->emitrelocations)
9706 {
9707 htab->brlt->reloc_count += 1;
9708 htab->brlt->flags |= SEC_RELOC;
9709 }
721956f4 9710 }
ad8e1ba5
AM
9711
9712 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
ac2df442
AM
9713 off = (br_entry->offset
9714 + htab->brlt->output_offset
9715 + htab->brlt->output_section->vma
9716 - elf_gp (htab->brlt->output_section->owner)
9717 - htab->stub_group[stub_entry->id_sec->id].toc_off);
9718
176a0d42
AM
9719 if (info->emitrelocations)
9720 {
9721 stub_entry->stub_sec->reloc_count += 1 + (PPC_HA (off) != 0);
9722 stub_entry->stub_sec->flags |= SEC_RELOC;
9723 }
9724
ac2df442
AM
9725 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
9726 {
9727 size = 12;
176a0d42 9728 if (PPC_HA (off) != 0)
ac2df442
AM
9729 size = 16;
9730 }
9731 else
9732 {
9733 size = 20;
176a0d42 9734 if (PPC_HA (off) != 0)
ac2df442
AM
9735 size += 4;
9736
9737 if (PPC_HA (r2off) != 0)
9738 size += 4;
9739 }
721956f4 9740 }
84f5d08e
AM
9741 else if (info->emitrelocations)
9742 {
9743 stub_entry->stub_sec->reloc_count += 1;
9744 stub_entry->stub_sec->flags |= SEC_RELOC;
9745 }
721956f4
AM
9746 }
9747
eea6121a 9748 stub_entry->stub_sec->size += size;
b34976b6 9749 return TRUE;
721956f4
AM
9750}
9751
9752/* Set up various things so that we can make a list of input sections
9753 for each output section included in the link. Returns -1 on error,
cedb70c5 9754 0 when no stubs will be needed, and 1 on success. */
721956f4
AM
9755
9756int
927be08e
AM
9757ppc64_elf_setup_section_lists
9758 (struct bfd_link_info *info,
9759 asection *(*add_stub_section) (const char *, asection *),
9760 void (*layout_sections_again) (void))
721956f4
AM
9761{
9762 bfd *input_bfd;
734b6cf9 9763 int top_id, top_index, id;
721956f4 9764 asection *section;
734b6cf9 9765 asection **input_list;
721956f4
AM
9766 bfd_size_type amt;
9767 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9768
4dfe6ac6
NC
9769 if (htab == NULL)
9770 return -1;
927be08e
AM
9771 /* Stash our params away. */
9772 htab->add_stub_section = add_stub_section;
9773 htab->layout_sections_again = layout_sections_again;
4c52953f 9774
4ce794b7 9775 if (htab->brlt == NULL)
721956f4
AM
9776 return 0;
9777
1e2f5b6e 9778 /* Find the top input section id. */
3d6f9012 9779 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM
9780 input_bfd != NULL;
9781 input_bfd = input_bfd->link_next)
9782 {
721956f4
AM
9783 for (section = input_bfd->sections;
9784 section != NULL;
9785 section = section->next)
9786 {
9787 if (top_id < section->id)
9788 top_id = section->id;
9789 }
9790 }
721956f4 9791
8f3bab57 9792 htab->top_id = top_id;
721956f4 9793 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 9794 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM
9795 if (htab->stub_group == NULL)
9796 return -1;
9797
3d6f9012
AM
9798 /* Set toc_off for com, und, abs and ind sections. */
9799 for (id = 0; id < 3; id++)
9800 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 9801
734b6cf9
AM
9802 /* We can't use output_bfd->section_count here to find the top output
9803 section index as some sections may have been removed, and
8423293d 9804 strip_excluded_output_sections doesn't renumber the indices. */
927be08e 9805 for (section = info->output_bfd->sections, top_index = 0;
734b6cf9
AM
9806 section != NULL;
9807 section = section->next)
9808 {
9809 if (top_index < section->index)
9810 top_index = section->index;
9811 }
9812
9813 htab->top_index = top_index;
9814 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 9815 input_list = bfd_zmalloc (amt);
734b6cf9
AM
9816 htab->input_list = input_list;
9817 if (input_list == NULL)
9818 return -1;
9819
721956f4
AM
9820 return 1;
9821}
9822
927be08e
AM
9823/* Set up for first pass at multitoc partitioning. */
9824
9825void
9826ppc64_elf_start_multitoc_partition (struct bfd_link_info *info)
9827{
9828 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9829
9830 elf_gp (info->output_bfd) = ppc64_elf_toc (info->output_bfd);
9831 htab->toc_curr = elf_gp (info->output_bfd);
9832 htab->toc_bfd = NULL;
9833 htab->toc_first_sec = NULL;
9834}
9835
e717da7e
AM
9836/* The linker repeatedly calls this function for each TOC input section
9837 and linker generated GOT section. Group input bfds such that the toc
927be08e 9838 within a group is less than 64k in size. */
ad8e1ba5 9839
927be08e 9840bfd_boolean
4ce794b7 9841ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM
9842{
9843 struct ppc_link_hash_table *htab = ppc_hash_table (info);
d77c8a4b 9844 bfd_vma addr, off, limit;
ad8e1ba5 9845
4dfe6ac6
NC
9846 if (htab == NULL)
9847 return FALSE;
9848
927be08e 9849 if (!htab->second_toc_pass)
4c52953f 9850 {
927be08e 9851 /* Keep track of the first .toc or .got section for this input bfd. */
bf102f86
AM
9852 if (htab->toc_bfd != isec->owner)
9853 {
9854 htab->toc_bfd = isec->owner;
9855 htab->toc_first_sec = isec;
9856 }
927be08e 9857
bf102f86
AM
9858 addr = isec->output_offset + isec->output_section->vma;
9859 off = addr - htab->toc_curr;
d77c8a4b
AM
9860 limit = 0x80008000;
9861 if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc)
9862 limit = 0x10000;
9863 if (off + isec->size > limit)
bf102f86
AM
9864 {
9865 addr = (htab->toc_first_sec->output_offset
9866 + htab->toc_first_sec->output_section->vma);
9867 htab->toc_curr = addr;
9868 }
99877b66 9869
927be08e
AM
9870 /* toc_curr is the base address of this toc group. Set elf_gp
9871 for the input section to be the offset relative to the
9872 output toc base plus 0x8000. Making the input elf_gp an
9873 offset allows us to move the toc as a whole without
9874 recalculating input elf_gp. */
9875 off = htab->toc_curr - elf_gp (isec->output_section->owner);
9876 off += TOC_BASE_OFF;
9877
9878 /* Die if someone uses a linker script that doesn't keep input
9879 file .toc and .got together. */
9880 if (elf_gp (isec->owner) != 0
9881 && elf_gp (isec->owner) != off)
9882 return FALSE;
9883
9884 elf_gp (isec->owner) = off;
9885 return TRUE;
4c52953f 9886 }
927be08e
AM
9887
9888 /* During the second pass toc_first_sec points to the start of
9889 a toc group, and toc_curr is used to track the old elf_gp.
9890 We use toc_bfd to ensure we only look at each bfd once. */
9891 if (htab->toc_bfd == isec->owner)
9892 return TRUE;
9893 htab->toc_bfd = isec->owner;
9894
9895 if (htab->toc_first_sec == NULL
9896 || htab->toc_curr != elf_gp (isec->owner))
9897 {
9898 htab->toc_curr = elf_gp (isec->owner);
9899 htab->toc_first_sec = isec;
9900 }
9901 addr = (htab->toc_first_sec->output_offset
9902 + htab->toc_first_sec->output_section->vma);
9903 off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF;
9904 elf_gp (isec->owner) = off;
9905
9906 return TRUE;
ad8e1ba5
AM
9907}
9908
927be08e
AM
9909/* Called via elf_link_hash_traverse to merge GOT entries for global
9910 symbol H. */
9911
9912static bfd_boolean
9913merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
9914{
9915 if (h->root.type == bfd_link_hash_indirect)
9916 return TRUE;
9917
9918 if (h->root.type == bfd_link_hash_warning)
9919 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9920
9921 merge_got_entries (&h->got.glist);
9922
9923 return TRUE;
9924}
9925
9926/* Called via elf_link_hash_traverse to allocate GOT entries for global
9927 symbol H. */
9928
9929static bfd_boolean
9930reallocate_got (struct elf_link_hash_entry *h, void *inf)
9931{
9932 struct got_entry *gent;
9933
9934 if (h->root.type == bfd_link_hash_indirect)
9935 return TRUE;
9936
9937 if (h->root.type == bfd_link_hash_warning)
9938 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9939
9940 for (gent = h->got.glist; gent != NULL; gent = gent->next)
9941 if (!gent->is_indirect)
9942 allocate_got (h, (struct bfd_link_info *) inf, gent);
9943 return TRUE;
9944}
9945
9946/* Called on the first multitoc pass after the last call to
9947 ppc64_elf_next_toc_section. This function removes duplicate GOT
9948 entries. */
9949
9950bfd_boolean
9951ppc64_elf_layout_multitoc (struct bfd_link_info *info)
ad8e1ba5
AM
9952{
9953 struct ppc_link_hash_table *htab = ppc_hash_table (info);
927be08e
AM
9954 struct bfd *ibfd, *ibfd2;
9955 bfd_boolean done_something;
9956
9957 htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd);
ad8e1ba5 9958
7865406b
AM
9959 if (!htab->do_multi_toc)
9960 return FALSE;
9961
d0fae19d 9962 /* Merge global sym got entries within a toc group. */
927be08e
AM
9963 elf_link_hash_traverse (&htab->elf, merge_global_got, info);
9964
9965 /* And tlsld_got. */
9966 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
9967 {
9968 struct got_entry *ent, *ent2;
9969
9970 if (!is_ppc64_elf (ibfd))
9971 continue;
9972
9973 ent = ppc64_tlsld_got (ibfd);
9974 if (!ent->is_indirect
9975 && ent->got.offset != (bfd_vma) -1)
9976 {
9977 for (ibfd2 = ibfd->link_next; ibfd2 != NULL; ibfd2 = ibfd2->link_next)
9978 {
9979 if (!is_ppc64_elf (ibfd2))
9980 continue;
9981
9982 ent2 = ppc64_tlsld_got (ibfd2);
9983 if (!ent2->is_indirect
9984 && ent2->got.offset != (bfd_vma) -1
9985 && elf_gp (ibfd2) == elf_gp (ibfd))
9986 {
9987 ent2->is_indirect = TRUE;
9988 ent2->got.ent = ent;
9989 }
9990 }
9991 }
9992 }
9993
9994 /* Zap sizes of got sections. */
9995 htab->reliplt->rawsize = htab->reliplt->size;
9996 htab->reliplt->size -= htab->got_reli_size;
9997 htab->got_reli_size = 0;
9998
9999 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
10000 {
10001 asection *got, *relgot;
10002
10003 if (!is_ppc64_elf (ibfd))
10004 continue;
10005
10006 got = ppc64_elf_tdata (ibfd)->got;
10007 if (got != NULL)
10008 {
10009 got->rawsize = got->size;
10010 got->size = 0;
10011 relgot = ppc64_elf_tdata (ibfd)->relgot;
10012 relgot->rawsize = relgot->size;
10013 relgot->size = 0;
10014 }
10015 }
10016
10017 /* Now reallocate the got, local syms first. We don't need to
10018 allocate section contents again since we never increase size. */
10019 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
10020 {
10021 struct got_entry **lgot_ents;
10022 struct got_entry **end_lgot_ents;
10023 struct plt_entry **local_plt;
10024 struct plt_entry **end_local_plt;
f961d9dd 10025 unsigned char *lgot_masks;
927be08e
AM
10026 bfd_size_type locsymcount;
10027 Elf_Internal_Shdr *symtab_hdr;
10028 asection *s, *srel;
10029
10030 if (!is_ppc64_elf (ibfd))
10031 continue;
10032
10033 lgot_ents = elf_local_got_ents (ibfd);
10034 if (!lgot_ents)
10035 continue;
10036
10037 symtab_hdr = &elf_symtab_hdr (ibfd);
10038 locsymcount = symtab_hdr->sh_info;
10039 end_lgot_ents = lgot_ents + locsymcount;
10040 local_plt = (struct plt_entry **) end_lgot_ents;
10041 end_local_plt = local_plt + locsymcount;
f961d9dd 10042 lgot_masks = (unsigned char *) end_local_plt;
927be08e
AM
10043 s = ppc64_elf_tdata (ibfd)->got;
10044 srel = ppc64_elf_tdata (ibfd)->relgot;
10045 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
10046 {
10047 struct got_entry *ent;
10048
10049 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
d0fae19d
AM
10050 {
10051 unsigned int num = 1;
10052 ent->got.offset = s->size;
10053 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
10054 num = 2;
10055 s->size += num * 8;
10056 if (info->shared)
10057 srel->size += num * sizeof (Elf64_External_Rela);
10058 else if ((*lgot_masks & PLT_IFUNC) != 0)
10059 {
10060 htab->reliplt->size
10061 += num * sizeof (Elf64_External_Rela);
10062 htab->got_reli_size
10063 += num * sizeof (Elf64_External_Rela);
10064 }
10065 }
927be08e
AM
10066 }
10067 }
10068
10069 elf_link_hash_traverse (&htab->elf, reallocate_got, info);
10070
10071 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
10072 {
10073 struct got_entry *ent;
10074
10075 if (!is_ppc64_elf (ibfd))
10076 continue;
10077
10078 ent = ppc64_tlsld_got (ibfd);
10079 if (!ent->is_indirect
10080 && ent->got.offset != (bfd_vma) -1)
10081 {
10082 asection *s = ppc64_elf_tdata (ibfd)->got;
10083 ent->got.offset = s->size;
10084 s->size += 16;
10085 if (info->shared)
10086 {
10087 asection *srel = ppc64_elf_tdata (ibfd)->relgot;
10088 srel->size += sizeof (Elf64_External_Rela);
10089 }
10090 }
10091 }
10092
10093 done_something = htab->reliplt->rawsize != htab->reliplt->size;
10094 if (!done_something)
10095 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
10096 {
10097 asection *got;
10098
10099 if (!is_ppc64_elf (ibfd))
10100 continue;
10101
10102 got = ppc64_elf_tdata (ibfd)->got;
10103 if (got != NULL)
10104 {
10105 done_something = got->rawsize != got->size;
10106 if (done_something)
10107 break;
10108 }
10109 }
10110
10111 if (done_something)
10112 (*htab->layout_sections_again) ();
10113
10114 /* Set up for second pass over toc sections to recalculate elf_gp
10115 on input sections. */
10116 htab->toc_bfd = NULL;
10117 htab->toc_first_sec = NULL;
10118 htab->second_toc_pass = TRUE;
10119 return done_something;
10120}
10121
10122/* Called after second pass of multitoc partitioning. */
10123
10124void
10125ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info)
10126{
10127 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10128
10129 /* After the second pass, toc_curr tracks the TOC offset used
10130 for code sections below in ppc64_elf_next_input_section. */
3d6f9012 10131 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM
10132}
10133
9b5ecbd0
AM
10134/* No toc references were found in ISEC. If the code in ISEC makes no
10135 calls, then there's no need to use toc adjusting stubs when branching
10136 into ISEC. Actually, indirect calls from ISEC are OK as they will
4c52953f
AM
10137 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
10138 needed, and 2 if a cyclical call-graph was found but no other reason
10139 for a stub was detected. If called from the top level, a return of
10140 2 means the same as a return of 0. */
9b5ecbd0
AM
10141
10142static int
4ce794b7 10143toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0 10144{
9b5ecbd0 10145 int ret;
70cc837d
AM
10146
10147 /* Mark this section as checked. */
10148 isec->call_check_done = 1;
9b5ecbd0 10149
772119ce
AM
10150 /* We know none of our code bearing sections will need toc stubs. */
10151 if ((isec->flags & SEC_LINKER_CREATED) != 0)
10152 return 0;
10153
eea6121a 10154 if (isec->size == 0)
082c50f8
AM
10155 return 0;
10156
4c52953f
AM
10157 if (isec->output_section == NULL)
10158 return 0;
10159
4c52953f 10160 ret = 0;
70cc837d 10161 if (isec->reloc_count != 0)
9b5ecbd0 10162 {
70cc837d
AM
10163 Elf_Internal_Rela *relstart, *rel;
10164 Elf_Internal_Sym *local_syms;
10165 struct ppc_link_hash_table *htab;
2917689a 10166
70cc837d
AM
10167 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
10168 info->keep_memory);
10169 if (relstart == NULL)
10170 return -1;
90aecf7a 10171
70cc837d
AM
10172 /* Look for branches to outside of this section. */
10173 local_syms = NULL;
10174 htab = ppc_hash_table (info);
10175 if (htab == NULL)
10176 return -1;
4c52953f 10177
70cc837d 10178 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
4c52953f 10179 {
70cc837d
AM
10180 enum elf_ppc64_reloc_type r_type;
10181 unsigned long r_symndx;
10182 struct elf_link_hash_entry *h;
10183 struct ppc_link_hash_entry *eh;
10184 Elf_Internal_Sym *sym;
10185 asection *sym_sec;
10186 struct _opd_sec_data *opd;
10187 bfd_vma sym_value;
10188 bfd_vma dest;
10189
10190 r_type = ELF64_R_TYPE (rel->r_info);
10191 if (r_type != R_PPC64_REL24
10192 && r_type != R_PPC64_REL14
10193 && r_type != R_PPC64_REL14_BRTAKEN
10194 && r_type != R_PPC64_REL14_BRNTAKEN)
10195 continue;
4c52953f 10196
70cc837d
AM
10197 r_symndx = ELF64_R_SYM (rel->r_info);
10198 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
10199 isec->owner))
4c52953f 10200 {
70cc837d
AM
10201 ret = -1;
10202 break;
10203 }
4c52953f 10204
70cc837d
AM
10205 /* Calls to dynamic lib functions go through a plt call stub
10206 that uses r2. */
10207 eh = (struct ppc_link_hash_entry *) h;
10208 if (eh != NULL
10209 && (eh->elf.plt.plist != NULL
10210 || (eh->oh != NULL
10211 && ppc_follow_link (eh->oh)->elf.plt.plist != NULL)))
10212 {
10213 ret = 1;
10214 break;
4c52953f
AM
10215 }
10216
70cc837d
AM
10217 if (sym_sec == NULL)
10218 /* Ignore other undefined symbols. */
4c52953f 10219 continue;
4c52953f 10220
70cc837d
AM
10221 /* Assume branches to other sections not included in the
10222 link need stubs too, to cover -R and absolute syms. */
10223 if (sym_sec->output_section == NULL)
10224 {
10225 ret = 1;
10226 break;
10227 }
4c52953f 10228
70cc837d
AM
10229 if (h == NULL)
10230 sym_value = sym->st_value;
10231 else
10232 {
10233 if (h->root.type != bfd_link_hash_defined
10234 && h->root.type != bfd_link_hash_defweak)
10235 abort ();
10236 sym_value = h->root.u.def.value;
10237 }
10238 sym_value += rel->r_addend;
4c52953f 10239
70cc837d
AM
10240 /* If this branch reloc uses an opd sym, find the code section. */
10241 opd = get_opd_info (sym_sec);
10242 if (opd != NULL)
10243 {
10244 if (h == NULL && opd->adjust != NULL)
10245 {
10246 long adjust;
4c52953f 10247
70cc837d
AM
10248 adjust = opd->adjust[sym->st_value / 8];
10249 if (adjust == -1)
10250 /* Assume deleted functions won't ever be called. */
10251 continue;
10252 sym_value += adjust;
10253 }
4c52953f 10254
70cc837d
AM
10255 dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL);
10256 if (dest == (bfd_vma) -1)
10257 continue;
10258 }
10259 else
10260 dest = (sym_value
10261 + sym_sec->output_offset
10262 + sym_sec->output_section->vma);
4c52953f 10263
70cc837d
AM
10264 /* Ignore branch to self. */
10265 if (sym_sec == isec)
10266 continue;
4c52953f 10267
70cc837d
AM
10268 /* If the called function uses the toc, we need a stub. */
10269 if (sym_sec->has_toc_reloc
10270 || sym_sec->makes_toc_func_call)
4c52953f 10271 {
70cc837d 10272 ret = 1;
4c52953f
AM
10273 break;
10274 }
70cc837d
AM
10275
10276 /* Assume any branch that needs a long branch stub might in fact
10277 need a plt_branch stub. A plt_branch stub uses r2. */
10278 else if (dest - (isec->output_offset
10279 + isec->output_section->vma
10280 + rel->r_offset) + (1 << 25) >= (2 << 25))
4c52953f 10281 {
70cc837d
AM
10282 ret = 1;
10283 break;
10284 }
10285
10286 /* If calling back to a section in the process of being
10287 tested, we can't say for sure that no toc adjusting stubs
10288 are needed, so don't return zero. */
10289 else if (sym_sec->call_check_in_progress)
10290 ret = 2;
10291
10292 /* Branches to another section that itself doesn't have any TOC
10293 references are OK. Recursively call ourselves to check. */
10294 else if (!sym_sec->call_check_done)
10295 {
10296 int recur;
10297
10298 /* Mark current section as indeterminate, so that other
10299 sections that call back to current won't be marked as
10300 known. */
10301 isec->call_check_in_progress = 1;
10302 recur = toc_adjusting_stub_needed (info, sym_sec);
10303 isec->call_check_in_progress = 0;
10304
4c52953f
AM
10305 if (recur != 0)
10306 {
70cc837d
AM
10307 ret = recur;
10308 if (recur != 2)
10309 break;
4c52953f
AM
10310 }
10311 }
4c52953f 10312 }
70cc837d
AM
10313
10314 if (local_syms != NULL
10315 && (elf_symtab_hdr (isec->owner).contents
10316 != (unsigned char *) local_syms))
10317 free (local_syms);
10318 if (elf_section_data (isec)->relocs != relstart)
10319 free (relstart);
9b5ecbd0
AM
10320 }
10321
70cc837d
AM
10322 if ((ret & 1) == 0
10323 && isec->map_head.s != NULL
10324 && (strcmp (isec->output_section->name, ".init") == 0
10325 || strcmp (isec->output_section->name, ".fini") == 0))
10326 {
10327 if (isec->map_head.s->has_toc_reloc
10328 || isec->map_head.s->makes_toc_func_call)
10329 ret = 1;
10330 else if (!isec->map_head.s->call_check_done)
10331 {
10332 int recur;
10333 isec->call_check_in_progress = 1;
10334 recur = toc_adjusting_stub_needed (info, isec->map_head.s);
10335 isec->call_check_in_progress = 0;
10336 if (recur != 0)
10337 ret = recur;
10338 }
10339 }
10340
10341 if (ret == 1)
10342 isec->makes_toc_func_call = 1;
4c52953f 10343
9b5ecbd0
AM
10344 return ret;
10345}
10346
721956f4
AM
10347/* The linker repeatedly calls this function for each input section,
10348 in the order that input sections are linked into output sections.
10349 Build lists of input sections to determine groupings between which
10350 we may insert linker stubs. */
10351
9b5ecbd0 10352bfd_boolean
4ce794b7 10353ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM
10354{
10355 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10356
4dfe6ac6
NC
10357 if (htab == NULL)
10358 return FALSE;
10359
734b6cf9
AM
10360 if ((isec->output_section->flags & SEC_CODE) != 0
10361 && isec->output_section->index <= htab->top_index)
721956f4 10362 {
734b6cf9 10363 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 10364 /* Steal the link_sec pointer for our list. */
721956f4 10365#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM
10366 /* This happens to make the list in reverse order,
10367 which is what we want. */
734b6cf9
AM
10368 PREV_SEC (isec) = *list;
10369 *list = isec;
721956f4 10370 }
ad8e1ba5 10371
4c52953f 10372 if (htab->multi_toc_needed)
9b5ecbd0 10373 {
4c52953f
AM
10374 /* If a code section has a function that uses the TOC then we need
10375 to use the right TOC (obviously). Also, make sure that .opd gets
10376 the correct TOC value for R_PPC64_TOC relocs that don't have or
f94498ff
AM
10377 can't find their function symbol (shouldn't ever happen now).
10378 Also specially treat .fixup for the linux kernel. .fixup
10379 contains branches, but only back to the function that hit an
10380 exception. */
10381 if (isec->has_toc_reloc
10382 || (isec->flags & SEC_CODE) == 0
10383 || strcmp (isec->name, ".fixup") == 0)
4c52953f
AM
10384 {
10385 if (elf_gp (isec->owner) != 0)
10386 htab->toc_curr = elf_gp (isec->owner);
10387 }
70cc837d
AM
10388 else if (!isec->call_check_done
10389 && toc_adjusting_stub_needed (info, isec) < 0)
10390 return FALSE;
9b5ecbd0 10391 }
ad8e1ba5
AM
10392
10393 /* Functions that don't use the TOC can belong in any TOC group.
10394 Use the last TOC base. This happens to make _init and _fini
70cc837d 10395 pasting work, because the fragments generally don't use the TOC. */
ad8e1ba5 10396 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 10397 return TRUE;
721956f4
AM
10398}
10399
70cc837d
AM
10400/* Check that all .init and .fini sections use the same toc, if they
10401 have toc relocs. */
10402
10403static bfd_boolean
10404check_pasted_section (struct bfd_link_info *info, const char *name)
10405{
10406 asection *o = bfd_get_section_by_name (info->output_bfd, name);
10407
10408 if (o != NULL)
10409 {
10410 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10411 bfd_vma toc_off = 0;
10412 asection *i;
10413
10414 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
10415 if (i->has_toc_reloc)
10416 {
10417 if (toc_off == 0)
10418 toc_off = htab->stub_group[i->id].toc_off;
10419 else if (toc_off != htab->stub_group[i->id].toc_off)
10420 return FALSE;
10421 }
10422 /* Make sure the whole pasted function uses the same toc offset. */
10423 if (toc_off != 0)
10424 for (i = o->map_head.s; i != NULL; i = i->map_head.s)
10425 htab->stub_group[i->id].toc_off = toc_off;
10426 }
10427 return TRUE;
10428}
10429
10430bfd_boolean
10431ppc64_elf_check_init_fini (struct bfd_link_info *info)
10432{
10433 return (check_pasted_section (info, ".init")
10434 & check_pasted_section (info, ".fini"));
10435}
10436
721956f4
AM
10437/* See whether we can group stub sections together. Grouping stub
10438 sections may result in fewer stubs. More importantly, we need to
10439 put all .init* and .fini* stubs at the beginning of the .init or
10440 .fini output sections respectively, because glibc splits the
10441 _init and _fini functions into multiple parts. Putting a stub in
10442 the middle of a function is not a good idea. */
10443
10444static void
4ce794b7
AM
10445group_sections (struct ppc_link_hash_table *htab,
10446 bfd_size_type stub_group_size,
10447 bfd_boolean stubs_always_before_branch)
721956f4 10448{
7c8fe5c4
AM
10449 asection **list;
10450 bfd_size_type stub14_group_size;
10451 bfd_boolean suppress_size_errors;
10452
10453 suppress_size_errors = FALSE;
10454 stub14_group_size = stub_group_size;
10455 if (stub_group_size == 1)
10456 {
10457 /* Default values. */
10458 if (stubs_always_before_branch)
10459 {
10460 stub_group_size = 0x1e00000;
10461 stub14_group_size = 0x7800;
10462 }
10463 else
10464 {
10465 stub_group_size = 0x1c00000;
10466 stub14_group_size = 0x7000;
10467 }
10468 suppress_size_errors = TRUE;
10469 }
10470
10471 list = htab->input_list + htab->top_index;
734b6cf9 10472 do
721956f4 10473 {
734b6cf9
AM
10474 asection *tail = *list;
10475 while (tail != NULL)
721956f4 10476 {
734b6cf9
AM
10477 asection *curr;
10478 asection *prev;
10479 bfd_size_type total;
10480 bfd_boolean big_sec;
10481 bfd_vma curr_toc;
10482
10483 curr = tail;
eea6121a 10484 total = tail->size;
7c8fe5c4
AM
10485 big_sec = total > (ppc64_elf_section_data (tail)->has_14bit_branch
10486 ? stub14_group_size : stub_group_size);
10487 if (big_sec && !suppress_size_errors)
5c3dead3
AM
10488 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
10489 tail->owner, tail);
734b6cf9
AM
10490 curr_toc = htab->stub_group[tail->id].toc_off;
10491
10492 while ((prev = PREV_SEC (curr)) != NULL
10493 && ((total += curr->output_offset - prev->output_offset)
7c8fe5c4
AM
10494 < (ppc64_elf_section_data (prev)->has_14bit_branch
10495 ? stub14_group_size : stub_group_size))
ad8e1ba5 10496 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM
10497 curr = prev;
10498
10499 /* OK, the size from the start of CURR to the end is less
10500 than stub_group_size and thus can be handled by one stub
10501 section. (or the tail section is itself larger than
10502 stub_group_size, in which case we may be toast.) We
10503 should really be keeping track of the total size of stubs
10504 added here, as stubs contribute to the final output
10505 section size. That's a little tricky, and this way will
10506 only break if stubs added make the total size more than
10507 2^25, ie. for the default stub_group_size, if stubs total
10508 more than 2097152 bytes, or nearly 75000 plt call stubs. */
10509 do
721956f4
AM
10510 {
10511 prev = PREV_SEC (tail);
734b6cf9 10512 /* Set up this stub group. */
721956f4
AM
10513 htab->stub_group[tail->id].link_sec = curr;
10514 }
734b6cf9
AM
10515 while (tail != curr && (tail = prev) != NULL);
10516
10517 /* But wait, there's more! Input sections up to stub_group_size
10518 bytes before the stub section can be handled by it too.
10519 Don't do this if we have a really large section after the
10520 stubs, as adding more stubs increases the chance that
10521 branches may not reach into the stub section. */
10522 if (!stubs_always_before_branch && !big_sec)
10523 {
10524 total = 0;
10525 while (prev != NULL
10526 && ((total += tail->output_offset - prev->output_offset)
7c8fe5c4
AM
10527 < (ppc64_elf_section_data (prev)->has_14bit_branch
10528 ? stub14_group_size : stub_group_size))
734b6cf9
AM
10529 && htab->stub_group[prev->id].toc_off == curr_toc)
10530 {
10531 tail = prev;
10532 prev = PREV_SEC (tail);
10533 htab->stub_group[tail->id].link_sec = curr;
10534 }
10535 }
10536 tail = prev;
721956f4
AM
10537 }
10538 }
734b6cf9
AM
10539 while (list-- != htab->input_list);
10540 free (htab->input_list);
721956f4
AM
10541#undef PREV_SEC
10542}
10543
721956f4
AM
10544/* Determine and set the size of the stub section for a final link.
10545
10546 The basic idea here is to examine all the relocations looking for
10547 PC-relative calls to a target that is unreachable with a "bl"
10548 instruction. */
10549
b34976b6 10550bfd_boolean
927be08e 10551ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size)
721956f4
AM
10552{
10553 bfd_size_type stub_group_size;
b34976b6 10554 bfd_boolean stubs_always_before_branch;
721956f4
AM
10555 struct ppc_link_hash_table *htab = ppc_hash_table (info);
10556
4dfe6ac6
NC
10557 if (htab == NULL)
10558 return FALSE;
10559
721956f4
AM
10560 stubs_always_before_branch = group_size < 0;
10561 if (group_size < 0)
10562 stub_group_size = -group_size;
10563 else
10564 stub_group_size = group_size;
721956f4
AM
10565
10566 group_sections (htab, stub_group_size, stubs_always_before_branch);
10567
721956f4
AM
10568 while (1)
10569 {
10570 bfd *input_bfd;
10571 unsigned int bfd_indx;
10572 asection *stub_sec;
721956f4
AM
10573
10574 htab->stub_iteration += 1;
721956f4
AM
10575
10576 for (input_bfd = info->input_bfds, bfd_indx = 0;
10577 input_bfd != NULL;
10578 input_bfd = input_bfd->link_next, bfd_indx++)
10579 {
10580 Elf_Internal_Shdr *symtab_hdr;
10581 asection *section;
6cdc0ccc 10582 Elf_Internal_Sym *local_syms = NULL;
721956f4 10583
0c8d6e5c 10584 if (!is_ppc64_elf (input_bfd))
67f93c31
AM
10585 continue;
10586
721956f4 10587 /* We'll need the symbol table in a second. */
0ffa91dd 10588 symtab_hdr = &elf_symtab_hdr (input_bfd);
721956f4
AM
10589 if (symtab_hdr->sh_info == 0)
10590 continue;
10591
721956f4
AM
10592 /* Walk over each section attached to the input bfd. */
10593 for (section = input_bfd->sections;
10594 section != NULL;
10595 section = section->next)
10596 {
721956f4 10597 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM
10598
10599 /* If there aren't any relocs, then there's nothing more
10600 to do. */
10601 if ((section->flags & SEC_RELOC) == 0
12c0f757
AM
10602 || (section->flags & SEC_ALLOC) == 0
10603 || (section->flags & SEC_LOAD) == 0
10604 || (section->flags & SEC_CODE) == 0
721956f4
AM
10605 || section->reloc_count == 0)
10606 continue;
10607
10608 /* If this section is a link-once section that will be
10609 discarded, then don't create any stubs. */
10610 if (section->output_section == NULL
927be08e 10611 || section->output_section->owner != info->output_bfd)
721956f4
AM
10612 continue;
10613
1e2f5b6e
AM
10614 /* Get the relocs. */
10615 internal_relocs
4ce794b7 10616 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 10617 info->keep_memory);
721956f4 10618 if (internal_relocs == NULL)
1e2f5b6e 10619 goto error_ret_free_local;
721956f4
AM
10620
10621 /* Now examine each relocation. */
10622 irela = internal_relocs;
10623 irelaend = irela + section->reloc_count;
10624 for (; irela < irelaend; irela++)
10625 {
4ce794b7
AM
10626 enum elf_ppc64_reloc_type r_type;
10627 unsigned int r_indx;
721956f4
AM
10628 enum ppc_stub_type stub_type;
10629 struct ppc_stub_hash_entry *stub_entry;
8387904d 10630 asection *sym_sec, *code_sec;
e054468f 10631 bfd_vma sym_value, code_value;
721956f4 10632 bfd_vma destination;
8843416a 10633 bfd_boolean ok_dest;
721956f4 10634 struct ppc_link_hash_entry *hash;
8387904d 10635 struct ppc_link_hash_entry *fdh;
411e1bfb
AM
10636 struct elf_link_hash_entry *h;
10637 Elf_Internal_Sym *sym;
721956f4
AM
10638 char *stub_name;
10639 const asection *id_sec;
74f0fb50 10640 struct _opd_sec_data *opd;
e054468f 10641 struct plt_entry *plt_ent;
721956f4
AM
10642
10643 r_type = ELF64_R_TYPE (irela->r_info);
10644 r_indx = ELF64_R_SYM (irela->r_info);
10645
4ce794b7 10646 if (r_type >= R_PPC64_max)
721956f4
AM
10647 {
10648 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 10649 goto error_ret_free_internal;
721956f4
AM
10650 }
10651
10652 /* Only look for stubs on branch instructions. */
4ce794b7
AM
10653 if (r_type != R_PPC64_REL24
10654 && r_type != R_PPC64_REL14
10655 && r_type != R_PPC64_REL14_BRTAKEN
10656 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM
10657 continue;
10658
10659 /* Now determine the call target, its name, value,
10660 section. */
411e1bfb
AM
10661 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
10662 r_indx, input_bfd))
10663 goto error_ret_free_internal;
10664 hash = (struct ppc_link_hash_entry *) h;
10665
8843416a 10666 ok_dest = FALSE;
8387904d 10667 fdh = NULL;
7fe2b9a6 10668 sym_value = 0;
411e1bfb 10669 if (hash == NULL)
721956f4 10670 {
411e1bfb 10671 sym_value = sym->st_value;
8843416a 10672 ok_dest = TRUE;
721956f4 10673 }
7fe2b9a6
AM
10674 else if (hash->elf.root.type == bfd_link_hash_defined
10675 || hash->elf.root.type == bfd_link_hash_defweak)
10676 {
10677 sym_value = hash->elf.root.u.def.value;
10678 if (sym_sec->output_section != NULL)
10679 ok_dest = TRUE;
10680 }
10681 else if (hash->elf.root.type == bfd_link_hash_undefweak
10682 || hash->elf.root.type == bfd_link_hash_undefined)
721956f4 10683 {
99877b66 10684 /* Recognise an old ABI func code entry sym, and
7fe2b9a6
AM
10685 use the func descriptor sym instead if it is
10686 defined. */
ceb1f1ef 10687 if (hash->elf.root.root.string[0] == '.'
b31867b6 10688 && (fdh = lookup_fdh (hash, htab)) != NULL)
8387904d 10689 {
8387904d
AM
10690 if (fdh->elf.root.type == bfd_link_hash_defined
10691 || fdh->elf.root.type == bfd_link_hash_defweak)
10692 {
10693 sym_sec = fdh->elf.root.u.def.section;
10694 sym_value = fdh->elf.root.u.def.value;
10695 if (sym_sec->output_section != NULL)
10696 ok_dest = TRUE;
10697 }
99877b66
AM
10698 else
10699 fdh = NULL;
8387904d 10700 }
7fe2b9a6
AM
10701 }
10702 else
10703 {
10704 bfd_set_error (bfd_error_bad_value);
10705 goto error_ret_free_internal;
721956f4
AM
10706 }
10707
8843416a
AM
10708 destination = 0;
10709 if (ok_dest)
10710 {
10711 sym_value += irela->r_addend;
10712 destination = (sym_value
10713 + sym_sec->output_offset
10714 + sym_sec->output_section->vma);
10715 }
10716
8387904d 10717 code_sec = sym_sec;
e054468f 10718 code_value = sym_value;
74f0fb50
AM
10719 opd = get_opd_info (sym_sec);
10720 if (opd != NULL)
8387904d
AM
10721 {
10722 bfd_vma dest;
10723
74f0fb50 10724 if (hash == NULL && opd->adjust != NULL)
8387904d 10725 {
74f0fb50 10726 long adjust = opd->adjust[sym_value / 8];
8387904d
AM
10727 if (adjust == -1)
10728 continue;
e054468f 10729 code_value += adjust;
8387904d
AM
10730 sym_value += adjust;
10731 }
10732 dest = opd_entry_value (sym_sec, sym_value,
e054468f 10733 &code_sec, &code_value);
8387904d
AM
10734 if (dest != (bfd_vma) -1)
10735 {
10736 destination = dest;
10737 if (fdh != NULL)
10738 {
10739 /* Fixup old ABI sym to point at code
10740 entry. */
99877b66 10741 hash->elf.root.type = bfd_link_hash_defweak;
8387904d 10742 hash->elf.root.u.def.section = code_sec;
e054468f 10743 hash->elf.root.u.def.value = code_value;
8387904d
AM
10744 }
10745 }
10746 }
10747
721956f4 10748 /* Determine what (if any) linker stub is needed. */
e054468f 10749 plt_ent = NULL;
721956f4 10750 stub_type = ppc_type_of_stub (section, irela, &hash,
e054468f 10751 &plt_ent, destination);
ad8e1ba5
AM
10752
10753 if (stub_type != ppc_stub_plt_call)
10754 {
10755 /* Check whether we need a TOC adjusting stub.
10756 Since the linker pastes together pieces from
10757 different object files when creating the
10758 _init and _fini functions, it may be that a
10759 call to what looks like a local sym is in
10760 fact a call needing a TOC adjustment. */
8387904d
AM
10761 if (code_sec != NULL
10762 && code_sec->output_section != NULL
10763 && (htab->stub_group[code_sec->id].toc_off
9b5ecbd0 10764 != htab->stub_group[section->id].toc_off)
4c52953f
AM
10765 && (code_sec->has_toc_reloc
10766 || code_sec->makes_toc_func_call))
ad8e1ba5
AM
10767 stub_type = ppc_stub_long_branch_r2off;
10768 }
10769
721956f4
AM
10770 if (stub_type == ppc_stub_none)
10771 continue;
10772
411e1bfb
AM
10773 /* __tls_get_addr calls might be eliminated. */
10774 if (stub_type != ppc_stub_plt_call
10775 && hash != NULL
8387904d
AM
10776 && (hash == htab->tls_get_addr
10777 || hash == htab->tls_get_addr_fd)
411e1bfb
AM
10778 && section->has_tls_reloc
10779 && irela != internal_relocs)
10780 {
10781 /* Get tls info. */
f961d9dd 10782 unsigned char *tls_mask;
411e1bfb 10783
3a71aa26 10784 if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms,
411e1bfb
AM
10785 irela - 1, input_bfd))
10786 goto error_ret_free_internal;
e7b938ca 10787 if (*tls_mask != 0)
411e1bfb
AM
10788 continue;
10789 }
10790
721956f4
AM
10791 /* Support for grouping stub sections. */
10792 id_sec = htab->stub_group[section->id].link_sec;
10793
10794 /* Get the name of this stub. */
10795 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
10796 if (!stub_name)
10797 goto error_ret_free_internal;
10798
10799 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 10800 stub_name, FALSE, FALSE);
721956f4
AM
10801 if (stub_entry != NULL)
10802 {
10803 /* The proper stub has already been created. */
10804 free (stub_name);
10805 continue;
10806 }
10807
10808 stub_entry = ppc_add_stub (stub_name, section, htab);
10809 if (stub_entry == NULL)
10810 {
10811 free (stub_name);
6cdc0ccc
AM
10812 error_ret_free_internal:
10813 if (elf_section_data (section)->relocs == NULL)
10814 free (internal_relocs);
10815 error_ret_free_local:
10816 if (local_syms != NULL
10817 && (symtab_hdr->contents
10818 != (unsigned char *) local_syms))
10819 free (local_syms);
b34976b6 10820 return FALSE;
721956f4
AM
10821 }
10822
ad8e1ba5 10823 stub_entry->stub_type = stub_type;
e054468f
AM
10824 if (stub_type != ppc_stub_plt_call)
10825 {
10826 stub_entry->target_value = code_value;
10827 stub_entry->target_section = code_sec;
10828 }
10829 else
10830 {
10831 stub_entry->target_value = sym_value;
10832 stub_entry->target_section = sym_sec;
10833 }
721956f4 10834 stub_entry->h = hash;
e054468f 10835 stub_entry->plt_ent = plt_ent;
411e1bfb 10836 stub_entry->addend = irela->r_addend;
ee75fd95
AM
10837
10838 if (stub_entry->h != NULL)
10839 htab->stub_globals += 1;
721956f4
AM
10840 }
10841
10842 /* We're done with the internal relocs, free them. */
6cdc0ccc 10843 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 10844 free (internal_relocs);
721956f4 10845 }
6cdc0ccc
AM
10846
10847 if (local_syms != NULL
10848 && symtab_hdr->contents != (unsigned char *) local_syms)
10849 {
10850 if (!info->keep_memory)
10851 free (local_syms);
10852 else
10853 symtab_hdr->contents = (unsigned char *) local_syms;
10854 }
721956f4
AM
10855 }
10856
5c3dead3 10857 /* We may have added some stubs. Find out the new size of the
721956f4
AM
10858 stub sections. */
10859 for (stub_sec = htab->stub_bfd->sections;
10860 stub_sec != NULL;
10861 stub_sec = stub_sec->next)
e717da7e 10862 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
ee75fd95 10863 {
5c3dead3 10864 stub_sec->rawsize = stub_sec->size;
ee75fd95
AM
10865 stub_sec->size = 0;
10866 stub_sec->reloc_count = 0;
84f5d08e 10867 stub_sec->flags &= ~SEC_RELOC;
ee75fd95 10868 }
eea6121a
AM
10869
10870 htab->brlt->size = 0;
84f5d08e
AM
10871 htab->brlt->reloc_count = 0;
10872 htab->brlt->flags &= ~SEC_RELOC;
ee75fd95 10873 if (htab->relbrlt != NULL)
eea6121a 10874 htab->relbrlt->size = 0;
721956f4 10875
63bc6f6c 10876 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4 10877
176a0d42
AM
10878 if (info->emitrelocations
10879 && htab->glink != NULL && htab->glink->size != 0)
10880 {
10881 htab->glink->reloc_count = 1;
10882 htab->glink->flags |= SEC_RELOC;
10883 }
10884
5c3dead3
AM
10885 for (stub_sec = htab->stub_bfd->sections;
10886 stub_sec != NULL;
10887 stub_sec = stub_sec->next)
10888 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
10889 && stub_sec->rawsize != stub_sec->size)
10890 break;
10891
10892 /* Exit from this loop when no stubs have been added, and no stubs
10893 have changed size. */
10894 if (stub_sec == NULL)
10895 break;
10896
721956f4
AM
10897 /* Ask the linker to do its stuff. */
10898 (*htab->layout_sections_again) ();
10899 }
10900
c456f082 10901 /* It would be nice to strip htab->brlt from the output if the
afbe61cf
AM
10902 section is empty, but it's too late. If we strip sections here,
10903 the dynamic symbol table is corrupted since the section symbol
10904 for the stripped section isn't written. */
721956f4 10905
b34976b6 10906 return TRUE;
721956f4
AM
10907}
10908
10909/* Called after we have determined section placement. If sections
805fc799 10910 move, we'll be called again. Provide a value for TOCstart. */
721956f4 10911
805fc799 10912bfd_vma
4ce794b7 10913ppc64_elf_toc (bfd *obfd)
721956f4 10914{
805fc799
AM
10915 asection *s;
10916 bfd_vma TOCstart;
721956f4 10917
805fc799
AM
10918 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
10919 order. The TOC starts where the first of these sections starts. */
10920 s = bfd_get_section_by_name (obfd, ".got");
e054468f 10921 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 10922 s = bfd_get_section_by_name (obfd, ".toc");
e054468f 10923 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 10924 s = bfd_get_section_by_name (obfd, ".tocbss");
e054468f 10925 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799 10926 s = bfd_get_section_by_name (obfd, ".plt");
e054468f 10927 if (s == NULL || (s->flags & SEC_EXCLUDE) != 0)
805fc799
AM
10928 {
10929 /* This may happen for
10930 o references to TOC base (SYM@toc / TOC[tc0]) without a
10931 .toc directive
10932 o bad linker script
10933 o --gc-sections and empty TOC sections
10934
10935 FIXME: Warn user? */
10936
10937 /* Look for a likely section. We probably won't even be
10938 using TOCstart. */
10939 for (s = obfd->sections; s != NULL; s = s->next)
e054468f
AM
10940 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY
10941 | SEC_EXCLUDE))
805fc799
AM
10942 == (SEC_ALLOC | SEC_SMALL_DATA))
10943 break;
721956f4 10944 if (s == NULL)
805fc799 10945 for (s = obfd->sections; s != NULL; s = s->next)
e054468f 10946 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE))
805fc799
AM
10947 == (SEC_ALLOC | SEC_SMALL_DATA))
10948 break;
721956f4 10949 if (s == NULL)
805fc799 10950 for (s = obfd->sections; s != NULL; s = s->next)
e054468f
AM
10951 if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE))
10952 == SEC_ALLOC)
805fc799 10953 break;
721956f4 10954 if (s == NULL)
805fc799 10955 for (s = obfd->sections; s != NULL; s = s->next)
e054468f 10956 if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC)
805fc799
AM
10957 break;
10958 }
721956f4 10959
805fc799
AM
10960 TOCstart = 0;
10961 if (s != NULL)
10962 TOCstart = s->output_section->vma + s->output_offset;
721956f4 10963
805fc799 10964 return TOCstart;
721956f4
AM
10965}
10966
10967/* Build all the stubs associated with the current output file.
10968 The stubs are kept in a hash table attached to the main linker
10969 hash table. This function is called via gldelf64ppc_finish. */
10970
b34976b6 10971bfd_boolean
4ce794b7
AM
10972ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
10973 struct bfd_link_info *info,
10974 char **stats)
5d1634d7
AM
10975{
10976 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 10977 asection *stub_sec;
5d1634d7 10978 bfd_byte *p;
e717da7e 10979 int stub_sec_count = 0;
5d1634d7 10980
4dfe6ac6
NC
10981 if (htab == NULL)
10982 return FALSE;
10983
ad8e1ba5 10984 htab->emit_stub_syms = emit_stub_syms;
eea6121a
AM
10985
10986 /* Allocate memory to hold the linker stubs. */
721956f4
AM
10987 for (stub_sec = htab->stub_bfd->sections;
10988 stub_sec != NULL;
10989 stub_sec = stub_sec->next)
eea6121a
AM
10990 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
10991 && stub_sec->size != 0)
e717da7e 10992 {
eea6121a
AM
10993 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
10994 if (stub_sec->contents == NULL)
10995 return FALSE;
10996 /* We want to check that built size is the same as calculated
10997 size. rawsize is a convenient location to use. */
10998 stub_sec->rawsize = stub_sec->size;
10999 stub_sec->size = 0;
e717da7e 11000 }
5d1634d7 11001
23eb7e01 11002 if (htab->glink != NULL && htab->glink->size != 0)
5d1634d7 11003 {
9f951329 11004 unsigned int indx;
ad8e1ba5 11005 bfd_vma plt0;
9f951329 11006
721956f4 11007 /* Build the .glink plt call stub. */
97b639ba
AM
11008 if (htab->emit_stub_syms)
11009 {
11010 struct elf_link_hash_entry *h;
468392fb
AM
11011 h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
11012 TRUE, FALSE, FALSE);
97b639ba
AM
11013 if (h == NULL)
11014 return FALSE;
11015 if (h->root.type == bfd_link_hash_new)
11016 {
11017 h->root.type = bfd_link_hash_defined;
11018 h->root.u.def.section = htab->glink;
ee4bf8d2 11019 h->root.u.def.value = 8;
f5385ebf
AM
11020 h->ref_regular = 1;
11021 h->def_regular = 1;
11022 h->ref_regular_nonweak = 1;
11023 h->forced_local = 1;
11024 h->non_elf = 0;
97b639ba
AM
11025 }
11026 }
176a0d42
AM
11027 plt0 = htab->plt->output_section->vma + htab->plt->output_offset - 16;
11028 if (info->emitrelocations)
11029 {
11030 Elf_Internal_Rela *r = get_relocs (htab->glink, 1);
11031 if (r == NULL)
11032 return FALSE;
11033 r->r_offset = (htab->glink->output_offset
11034 + htab->glink->output_section->vma);
11035 r->r_info = ELF64_R_INFO (0, R_PPC64_REL64);
11036 r->r_addend = plt0;
11037 }
4ce794b7 11038 p = htab->glink->contents;
176a0d42 11039 plt0 -= htab->glink->output_section->vma + htab->glink->output_offset;
ee4bf8d2
AM
11040 bfd_put_64 (htab->glink->owner, plt0, p);
11041 p += 8;
11042 bfd_put_32 (htab->glink->owner, MFLR_R12, p);
ad8e1ba5 11043 p += 4;
ee4bf8d2 11044 bfd_put_32 (htab->glink->owner, BCL_20_31, p);
ad8e1ba5 11045 p += 4;
ee4bf8d2 11046 bfd_put_32 (htab->glink->owner, MFLR_R11, p);
ad8e1ba5 11047 p += 4;
ee4bf8d2 11048 bfd_put_32 (htab->glink->owner, LD_R2_M16R11, p);
ad8e1ba5 11049 p += 4;
ee4bf8d2 11050 bfd_put_32 (htab->glink->owner, MTLR_R12, p);
ad8e1ba5 11051 p += 4;
ee4bf8d2 11052 bfd_put_32 (htab->glink->owner, ADD_R12_R2_R11, p);
ad8e1ba5 11053 p += 4;
ee4bf8d2 11054 bfd_put_32 (htab->glink->owner, LD_R11_0R12, p);
ad8e1ba5 11055 p += 4;
4ce794b7 11056 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 11057 p += 4;
4ce794b7 11058 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 11059 p += 4;
4ce794b7 11060 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 11061 p += 4;
4ce794b7 11062 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5 11063 p += 4;
ee4bf8d2
AM
11064 while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
11065 {
11066 bfd_put_32 (htab->glink->owner, NOP, p);
11067 p += 4;
11068 }
ad8e1ba5 11069
9f951329
AM
11070 /* Build the .glink lazy link call stubs. */
11071 indx = 0;
eea6121a 11072 while (p < htab->glink->contents + htab->glink->size)
9f951329
AM
11073 {
11074 if (indx < 0x8000)
11075 {
4ce794b7 11076 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM
11077 p += 4;
11078 }
11079 else
11080 {
4ce794b7 11081 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 11082 p += 4;
4ce794b7 11083 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM
11084 p += 4;
11085 }
4ce794b7 11086 bfd_put_32 (htab->glink->owner,
ee4bf8d2 11087 B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
a16d5acb 11088 indx++;
9f951329
AM
11089 p += 4;
11090 }
eea6121a 11091 htab->glink->rawsize = p - htab->glink->contents;
5d1634d7 11092 }
5d1634d7 11093
eea6121a 11094 if (htab->brlt->size != 0)
721956f4 11095 {
4ce794b7 11096 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 11097 htab->brlt->size);
4ce794b7 11098 if (htab->brlt->contents == NULL)
b34976b6 11099 return FALSE;
721956f4 11100 }
ee75fd95 11101 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
63bc6f6c
AM
11102 {
11103 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 11104 htab->relbrlt->size);
63bc6f6c
AM
11105 if (htab->relbrlt->contents == NULL)
11106 return FALSE;
11107 }
5d1634d7 11108
721956f4
AM
11109 /* Build the stubs as directed by the stub hash table. */
11110 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 11111
aa8a7074
AM
11112 if (htab->relbrlt != NULL)
11113 htab->relbrlt->reloc_count = 0;
11114
721956f4
AM
11115 for (stub_sec = htab->stub_bfd->sections;
11116 stub_sec != NULL;
11117 stub_sec = stub_sec->next)
e717da7e
AM
11118 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
11119 {
11120 stub_sec_count += 1;
eea6121a 11121 if (stub_sec->rawsize != stub_sec->size)
e717da7e
AM
11122 break;
11123 }
5d1634d7 11124
721956f4 11125 if (stub_sec != NULL
eea6121a 11126 || htab->glink->rawsize != htab->glink->size)
5d1634d7 11127 {
b34976b6 11128 htab->stub_error = TRUE;
721956f4 11129 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 11130 }
721956f4 11131
d2a300cf
AM
11132 if (htab->stub_error)
11133 return FALSE;
11134
11135 if (stats != NULL)
11136 {
11137 *stats = bfd_malloc (500);
11138 if (*stats == NULL)
11139 return FALSE;
11140
ee75fd95 11141 sprintf (*stats, _("linker stubs in %u group%s\n"
d2a300cf
AM
11142 " branch %lu\n"
11143 " toc adjust %lu\n"
11144 " long branch %lu\n"
11145 " long toc adj %lu\n"
11146 " plt call %lu"),
e717da7e 11147 stub_sec_count,
ee75fd95 11148 stub_sec_count == 1 ? "" : "s",
4ce794b7
AM
11149 htab->stub_count[ppc_stub_long_branch - 1],
11150 htab->stub_count[ppc_stub_long_branch_r2off - 1],
11151 htab->stub_count[ppc_stub_plt_branch - 1],
11152 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
11153 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM
11154 }
11155 return TRUE;
5bd4f169
AM
11156}
11157
99877b66
AM
11158/* This function undoes the changes made by add_symbol_adjust. */
11159
11160static bfd_boolean
11161undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
11162{
11163 struct ppc_link_hash_entry *eh;
11164
11165 if (h->root.type == bfd_link_hash_indirect)
11166 return TRUE;
11167
11168 if (h->root.type == bfd_link_hash_warning)
11169 h = (struct elf_link_hash_entry *) h->root.u.i.link;
11170
11171 eh = (struct ppc_link_hash_entry *) h;
11172 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
11173 return TRUE;
11174
11175 eh->elf.root.type = bfd_link_hash_undefined;
11176 return TRUE;
11177}
11178
11179void
11180ppc64_elf_restore_symbols (struct bfd_link_info *info)
11181{
11182 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4dfe6ac6
NC
11183
11184 if (htab != NULL)
11185 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
99877b66
AM
11186}
11187
60124e18
AM
11188/* What to do when ld finds relocations against symbols defined in
11189 discarded sections. */
11190
11191static unsigned int
11192ppc64_elf_action_discarded (asection *sec)
11193{
11194 if (strcmp (".opd", sec->name) == 0)
11195 return 0;
11196
11197 if (strcmp (".toc", sec->name) == 0)
11198 return 0;
11199
bce50a28
JJ
11200 if (strcmp (".toc1", sec->name) == 0)
11201 return 0;
11202
60124e18
AM
11203 return _bfd_elf_default_action_discarded (sec);
11204}
11205
5bd4f169
AM
11206/* The RELOCATE_SECTION function is called by the ELF backend linker
11207 to handle the relocations for a section.
11208
11209 The relocs are always passed as Rela structures; if the section
11210 actually uses Rel structures, the r_addend field will always be
11211 zero.
11212
11213 This function is responsible for adjust the section contents as
11214 necessary, and (if using Rela relocs and generating a
1049f94e 11215 relocatable output file) adjusting the reloc addend as
5bd4f169
AM
11216 necessary.
11217
11218 This function does not have to worry about setting the reloc
11219 address or the reloc symbol index.
11220
11221 LOCAL_SYMS is a pointer to the swapped in local symbols.
11222
11223 LOCAL_SECTIONS is an array giving the section in the input file
11224 corresponding to the st_shndx field of each local symbol.
11225
11226 The global hash table entry for the global symbols can be found
11227 via elf_sym_hashes (input_bfd).
11228
1049f94e 11229 When generating relocatable output, this function must handle
5bd4f169
AM
11230 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
11231 going to be the section symbol corresponding to the output
11232 section, which means that the addend must be adjusted
11233 accordingly. */
11234
b34976b6 11235static bfd_boolean
4ce794b7
AM
11236ppc64_elf_relocate_section (bfd *output_bfd,
11237 struct bfd_link_info *info,
11238 bfd *input_bfd,
11239 asection *input_section,
11240 bfd_byte *contents,
11241 Elf_Internal_Rela *relocs,
11242 Elf_Internal_Sym *local_syms,
11243 asection **local_sections)
5bd4f169 11244{
65f38f15 11245 struct ppc_link_hash_table *htab;
5bd4f169
AM
11246 Elf_Internal_Shdr *symtab_hdr;
11247 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM
11248 Elf_Internal_Rela *rel;
11249 Elf_Internal_Rela *relend;
411e1bfb
AM
11250 Elf_Internal_Rela outrel;
11251 bfd_byte *loc;
411e1bfb 11252 struct got_entry **local_got_ents;
5bd4f169 11253 bfd_vma TOCstart;
b34976b6
AM
11254 bfd_boolean ret = TRUE;
11255 bfd_boolean is_opd;
96e0dda4 11256 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 11257 bfd_boolean is_power4 = FALSE;
4fe5ca5b 11258 bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
5bd4f169 11259
65f38f15 11260 /* Initialize howto table if needed. */
5bd4f169 11261 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM
11262 ppc_howto_init ();
11263
65f38f15 11264 htab = ppc_hash_table (info);
4dfe6ac6
NC
11265 if (htab == NULL)
11266 return FALSE;
ee75fd95
AM
11267
11268 /* Don't relocate stub sections. */
11269 if (input_section->owner == htab->stub_bfd)
11270 return TRUE;
11271
0c8d6e5c 11272 BFD_ASSERT (is_ppc64_elf (input_bfd));
0ffa91dd 11273
411e1bfb 11274 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 11275 TOCstart = elf_gp (output_bfd);
0ffa91dd 11276 symtab_hdr = &elf_symtab_hdr (input_bfd);
5bd4f169 11277 sym_hashes = elf_sym_hashes (input_bfd);
7c8fe5c4 11278 is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd;
65f38f15 11279
5bd4f169
AM
11280 rel = relocs;
11281 relend = relocs + input_section->reloc_count;
11282 for (; rel < relend; rel++)
11283 {
04c9666a 11284 enum elf_ppc64_reloc_type r_type;
4cc603a5 11285 bfd_vma addend, orig_addend;
5bd4f169
AM
11286 bfd_reloc_status_type r;
11287 Elf_Internal_Sym *sym;
11288 asection *sec;
039b3fef
AM
11289 struct elf_link_hash_entry *h_elf;
11290 struct ppc_link_hash_entry *h;
11291 struct ppc_link_hash_entry *fdh;
5bd4f169 11292 const char *sym_name;
0d4792f7 11293 unsigned long r_symndx, toc_symndx;
3a71aa26 11294 bfd_vma toc_addend;
f961d9dd
AM
11295 unsigned char tls_mask, tls_gd, tls_type;
11296 unsigned char sym_type;
5bd4f169 11297 bfd_vma relocation;
b34976b6
AM
11298 bfd_boolean unresolved_reloc;
11299 bfd_boolean warned;
50bc7936 11300 unsigned long insn, mask;
721956f4
AM
11301 struct ppc_stub_hash_entry *stub_entry;
11302 bfd_vma max_br_offset;
11303 bfd_vma from;
5bd4f169 11304
4ce794b7 11305 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 11306 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM
11307
11308 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
11309 symbol of the previous ADDR64 reloc. The symbol gives us the
11310 proper TOC base to use. */
11311 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
11312 && rel != relocs
11313 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
11314 && is_opd)
11315 r_symndx = ELF64_R_SYM (rel[-1].r_info);
11316
4ce794b7
AM
11317 sym = NULL;
11318 sec = NULL;
039b3fef 11319 h_elf = NULL;
4ce794b7 11320 sym_name = NULL;
b34976b6
AM
11321 unresolved_reloc = FALSE;
11322 warned = FALSE;
4cc603a5 11323 orig_addend = rel->r_addend;
65f38f15 11324
0b13192e 11325 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM
11326 {
11327 /* It's a local symbol. */
74f0fb50 11328 struct _opd_sec_data *opd;
4025353c 11329
5bd4f169
AM
11330 sym = local_syms + r_symndx;
11331 sec = local_sections[r_symndx];
26c61ae5 11332 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
0d4792f7 11333 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 11334 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
74f0fb50
AM
11335 opd = get_opd_info (sec);
11336 if (opd != NULL && opd->adjust != NULL)
1e2f5b6e 11337 {
74f0fb50 11338 long adjust = opd->adjust[(sym->st_value + rel->r_addend) / 8];
4025353c
AM
11339 if (adjust == -1)
11340 relocation = 0;
11341 else
4cc603a5
AM
11342 {
11343 /* If this is a relocation against the opd section sym
11344 and we have edited .opd, adjust the reloc addend so
11345 that ld -r and ld --emit-relocs output is correct.
11346 If it is a reloc against some other .opd symbol,
11347 then the symbol value will be adjusted later. */
11348 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
11349 rel->r_addend += adjust;
11350 else
11351 relocation += adjust;
11352 }
1e2f5b6e 11353 }
5bd4f169
AM
11354 }
11355 else
11356 {
b2a8e766
AM
11357 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
11358 r_symndx, symtab_hdr, sym_hashes,
039b3fef 11359 h_elf, sec, relocation,
b2a8e766 11360 unresolved_reloc, warned);
039b3fef
AM
11361 sym_name = h_elf->root.root.string;
11362 sym_type = h_elf->type;
5bd4f169 11363 }
039b3fef 11364 h = (struct ppc_link_hash_entry *) h_elf;
5bd4f169 11365
ab96bf03
AM
11366 if (sec != NULL && elf_discarded_section (sec))
11367 {
11368 /* For relocs against symbols from removed linkonce sections,
11369 or sections discarded by a linker script, we just want the
11370 section contents zeroed. Avoid any special processing. */
11371 _bfd_clear_contents (ppc64_elf_howto_table[r_type], input_bfd,
11372 contents + rel->r_offset);
11373 rel->r_info = 0;
11374 rel->r_addend = 0;
11375 continue;
11376 }
11377
11378 if (info->relocatable)
11379 continue;
11380
951fd09b
AM
11381 /* TLS optimizations. Replace instruction sequences and relocs
11382 based on information we collected in tls_optimize. We edit
11383 RELOCS so that --emit-relocs will output something sensible
11384 for the final instruction stream. */
11385 tls_mask = 0;
11386 tls_gd = 0;
0d4792f7 11387 toc_symndx = 0;
727fc41e
AM
11388 if (h != NULL)
11389 tls_mask = h->tls_mask;
11390 else if (local_got_ents != NULL)
411e1bfb 11391 {
e054468f
AM
11392 struct plt_entry **local_plt = (struct plt_entry **)
11393 (local_got_ents + symtab_hdr->sh_info);
f961d9dd 11394 unsigned char *lgot_masks = (unsigned char *)
e054468f 11395 (local_plt + symtab_hdr->sh_info);
727fc41e
AM
11396 tls_mask = lgot_masks[r_symndx];
11397 }
11398 if (tls_mask == 0
11399 && (r_type == R_PPC64_TLS
11400 || r_type == R_PPC64_TLSGD
11401 || r_type == R_PPC64_TLSLD))
11402 {
11403 /* Check for toc tls entries. */
f961d9dd 11404 unsigned char *toc_tls;
0d4792f7 11405
727fc41e
AM
11406 if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
11407 &local_syms, rel, input_bfd))
11408 return FALSE;
0d4792f7 11409
727fc41e
AM
11410 if (toc_tls)
11411 tls_mask = *toc_tls;
0d4792f7
AM
11412 }
11413
11414 /* Check that tls relocs are used with tls syms, and non-tls
11415 relocs are used with non-tls syms. */
11416 if (r_symndx != 0
11417 && r_type != R_PPC64_NONE
11418 && (h == NULL
039b3fef
AM
11419 || h->elf.root.type == bfd_link_hash_defined
11420 || h->elf.root.type == bfd_link_hash_defweak)
1d483afe
AM
11421 && (IS_PPC64_TLS_RELOC (r_type)
11422 != (sym_type == STT_TLS
11423 || (sym_type == STT_SECTION
11424 && (sec->flags & SEC_THREAD_LOCAL) != 0))))
0d4792f7 11425 {
727fc41e
AM
11426 if (tls_mask != 0
11427 && (r_type == R_PPC64_TLS
11428 || r_type == R_PPC64_TLSGD
11429 || r_type == R_PPC64_TLSLD))
0d4792f7
AM
11430 /* R_PPC64_TLS is OK against a symbol in the TOC. */
11431 ;
11432 else
11433 (*_bfd_error_handler)
1d483afe 11434 (!IS_PPC64_TLS_RELOC (r_type)
d003868e
AM
11435 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
11436 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
11437 input_bfd,
11438 input_section,
0d4792f7
AM
11439 (long) rel->r_offset,
11440 ppc64_elf_howto_table[r_type]->name,
11441 sym_name);
411e1bfb
AM
11442 }
11443
11444 /* Ensure reloc mapping code below stays sane. */
11445 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
11446 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
11447 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
11448 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
11449 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
11450 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
11451 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
11452 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
11453 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
11454 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
11455 abort ();
0d4792f7 11456
411e1bfb
AM
11457 switch (r_type)
11458 {
11459 default:
411e1bfb
AM
11460 break;
11461
11462 case R_PPC64_TOC16:
11463 case R_PPC64_TOC16_LO:
11464 case R_PPC64_TOC16_DS:
11465 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM
11466 {
11467 /* Check for toc tls entries. */
f961d9dd 11468 unsigned char *toc_tls;
951fd09b 11469 int retval;
411e1bfb 11470
3a71aa26
AM
11471 retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend,
11472 &local_syms, rel, input_bfd);
951fd09b 11473 if (retval == 0)
411e1bfb
AM
11474 return FALSE;
11475
11476 if (toc_tls)
11477 {
951fd09b 11478 tls_mask = *toc_tls;
411e1bfb
AM
11479 if (r_type == R_PPC64_TOC16_DS
11480 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM
11481 {
11482 if (tls_mask != 0
11483 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
11484 goto toctprel;
11485 }
411e1bfb 11486 else
951fd09b
AM
11487 {
11488 /* If we found a GD reloc pair, then we might be
11489 doing a GD->IE transition. */
11490 if (retval == 2)
11491 {
11492 tls_gd = TLS_TPRELGD;
11493 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 11494 goto tls_ldgd_opt;
951fd09b
AM
11495 }
11496 else if (retval == 3)
11497 {
11498 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
102890f0 11499 goto tls_ldgd_opt;
951fd09b
AM
11500 }
11501 }
411e1bfb
AM
11502 }
11503 }
11504 break;
11505
11506 case R_PPC64_GOT_TPREL16_DS:
11507 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM
11508 if (tls_mask != 0
11509 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 11510 {
81407a69 11511 toctprel:
4fe5ca5b 11512 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
411e1bfb
AM
11513 insn &= 31 << 21;
11514 insn |= 0x3c0d0000; /* addis 0,13,0 */
4fe5ca5b 11515 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
411e1bfb 11516 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM
11517 if (toc_symndx != 0)
11518 {
11519 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
3a71aa26 11520 rel->r_addend = toc_addend;
0d4792f7
AM
11521 /* We changed the symbol. Start over in order to
11522 get h, sym, sec etc. right. */
11523 rel--;
11524 continue;
11525 }
11526 else
11527 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
11528 }
11529 break;
11530
11531 case R_PPC64_TLS:
951fd09b
AM
11532 if (tls_mask != 0
11533 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 11534 {
411e1bfb 11535 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
2d0f3896
AM
11536 insn = _bfd_elf_ppc_at_tls_transform (insn, 13);
11537 if (insn == 0)
411e1bfb 11538 abort ();
411e1bfb 11539 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb 11540 /* Was PPC64_TLS which sits on insn boundary, now
4fe5ca5b
GM
11541 PPC64_TPREL16_LO which is at low-order half-word. */
11542 rel->r_offset += d_offset;
0d4792f7
AM
11543 r_type = R_PPC64_TPREL16_LO;
11544 if (toc_symndx != 0)
11545 {
11546 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
3a71aa26 11547 rel->r_addend = toc_addend;
0d4792f7
AM
11548 /* We changed the symbol. Start over in order to
11549 get h, sym, sec etc. right. */
11550 rel--;
11551 continue;
11552 }
11553 else
11554 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
11555 }
11556 break;
11557
411e1bfb
AM
11558 case R_PPC64_GOT_TLSGD16_HI:
11559 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM
11560 tls_gd = TLS_TPRELGD;
11561 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
11562 goto tls_gdld_hi;
11563 break;
11564
411e1bfb
AM
11565 case R_PPC64_GOT_TLSLD16_HI:
11566 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 11567 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 11568 {
951fd09b
AM
11569 tls_gdld_hi:
11570 if ((tls_mask & tls_gd) != 0)
11571 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
11572 + R_PPC64_GOT_TPREL16_DS);
11573 else
411e1bfb 11574 {
951fd09b 11575 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
4fe5ca5b 11576 rel->r_offset -= d_offset;
951fd09b 11577 r_type = R_PPC64_NONE;
411e1bfb 11578 }
951fd09b 11579 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
11580 }
11581 break;
11582
951fd09b
AM
11583 case R_PPC64_GOT_TLSGD16:
11584 case R_PPC64_GOT_TLSGD16_LO:
11585 tls_gd = TLS_TPRELGD;
11586 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
102890f0 11587 goto tls_ldgd_opt;
951fd09b 11588 break;
411e1bfb 11589
951fd09b
AM
11590 case R_PPC64_GOT_TLSLD16:
11591 case R_PPC64_GOT_TLSLD16_LO:
11592 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
11593 {
3a71aa26 11594 unsigned int insn1, insn2, insn3;
102890f0
AM
11595 bfd_vma offset;
11596
11597 tls_ldgd_opt:
727fc41e
AM
11598 offset = (bfd_vma) -1;
11599 /* If not using the newer R_PPC64_TLSGD/LD to mark
11600 __tls_get_addr calls, we must trust that the call
11601 stays with its arg setup insns, ie. that the next
11602 reloc is the __tls_get_addr call associated with
11603 the current reloc. Edit both insns. */
11604 if (input_section->has_tls_get_addr_call
11605 && rel + 1 < relend
11606 && branch_reloc_hash_match (input_bfd, rel + 1,
11607 htab->tls_get_addr,
11608 htab->tls_get_addr_fd))
11609 offset = rel[1].r_offset;
102890f0 11610 if ((tls_mask & tls_gd) != 0)
411e1bfb 11611 {
102890f0 11612 /* IE */
3a71aa26
AM
11613 insn1 = bfd_get_32 (output_bfd,
11614 contents + rel->r_offset - d_offset);
102890f0
AM
11615 insn1 &= (1 << 26) - (1 << 2);
11616 insn1 |= 58 << 26; /* ld */
11617 insn2 = 0x7c636a14; /* add 3,3,13 */
727fc41e 11618 if (offset != (bfd_vma) -1)
f58d5a2d 11619 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
102890f0
AM
11620 if ((tls_mask & TLS_EXPLICIT) == 0)
11621 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
11622 + R_PPC64_GOT_TPREL16_DS);
411e1bfb 11623 else
102890f0
AM
11624 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
11625 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11626 }
11627 else
11628 {
11629 /* LE */
11630 insn1 = 0x3c6d0000; /* addis 3,13,0 */
11631 insn2 = 0x38630000; /* addi 3,3,0 */
11632 if (tls_gd == 0)
951fd09b 11633 {
102890f0 11634 /* Was an LD reloc. */
1d483afe
AM
11635 if (toc_symndx)
11636 sec = local_sections[toc_symndx];
11637 for (r_symndx = 0;
11638 r_symndx < symtab_hdr->sh_info;
11639 r_symndx++)
11640 if (local_sections[r_symndx] == sec)
11641 break;
11642 if (r_symndx >= symtab_hdr->sh_info)
11643 r_symndx = 0;
102890f0 11644 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
1d483afe
AM
11645 if (r_symndx != 0)
11646 rel->r_addend -= (local_syms[r_symndx].st_value
11647 + sec->output_offset
11648 + sec->output_section->vma);
951fd09b 11649 }
102890f0 11650 else if (toc_symndx != 0)
3a71aa26
AM
11651 {
11652 r_symndx = toc_symndx;
11653 rel->r_addend = toc_addend;
11654 }
102890f0
AM
11655 r_type = R_PPC64_TPREL16_HA;
11656 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
727fc41e
AM
11657 if (offset != (bfd_vma) -1)
11658 {
11659 rel[1].r_info = ELF64_R_INFO (r_symndx,
11660 R_PPC64_TPREL16_LO);
11661 rel[1].r_offset = offset + d_offset;
11662 rel[1].r_addend = rel->r_addend;
11663 }
102890f0 11664 }
3a71aa26
AM
11665 bfd_put_32 (output_bfd, insn1,
11666 contents + rel->r_offset - d_offset);
727fc41e
AM
11667 if (offset != (bfd_vma) -1)
11668 {
11669 insn3 = bfd_get_32 (output_bfd,
11670 contents + offset + 4);
11671 if (insn3 == NOP
11672 || insn3 == CROR_151515 || insn3 == CROR_313131)
11673 {
11674 rel[1].r_offset += 4;
11675 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
11676 insn2 = NOP;
11677 }
11678 bfd_put_32 (output_bfd, insn2, contents + offset);
11679 }
11680 if ((tls_mask & tls_gd) == 0
11681 && (tls_gd == 0 || toc_symndx != 0))
11682 {
11683 /* We changed the symbol. Start over in order
11684 to get h, sym, sec etc. right. */
11685 rel--;
11686 continue;
11687 }
11688 }
11689 break;
11690
11691 case R_PPC64_TLSGD:
11692 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
11693 {
11694 unsigned int insn2, insn3;
11695 bfd_vma offset = rel->r_offset;
11696
11697 if ((tls_mask & TLS_TPRELGD) != 0)
11698 {
11699 /* IE */
11700 r_type = R_PPC64_NONE;
11701 insn2 = 0x7c636a14; /* add 3,3,13 */
11702 }
11703 else
11704 {
11705 /* LE */
11706 if (toc_symndx != 0)
11707 {
11708 r_symndx = toc_symndx;
11709 rel->r_addend = toc_addend;
11710 }
11711 r_type = R_PPC64_TPREL16_LO;
11712 rel->r_offset = offset + d_offset;
11713 insn2 = 0x38630000; /* addi 3,3,0 */
11714 }
11715 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11716 /* Zap the reloc on the _tls_get_addr call too. */
11717 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 11718 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
3a71aa26
AM
11719 insn3 = bfd_get_32 (output_bfd,
11720 contents + offset + 4);
102890f0
AM
11721 if (insn3 == NOP
11722 || insn3 == CROR_151515 || insn3 == CROR_313131)
11723 {
727fc41e 11724 rel->r_offset += 4;
3a71aa26
AM
11725 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
11726 insn2 = NOP;
102890f0 11727 }
102890f0 11728 bfd_put_32 (output_bfd, insn2, contents + offset);
727fc41e 11729 if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0)
102890f0 11730 {
102890f0
AM
11731 rel--;
11732 continue;
411e1bfb 11733 }
411e1bfb 11734 }
411e1bfb
AM
11735 break;
11736
727fc41e
AM
11737 case R_PPC64_TLSLD:
11738 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
11739 {
11740 unsigned int insn2, insn3;
11741 bfd_vma offset = rel->r_offset;
11742
11743 if (toc_symndx)
11744 sec = local_sections[toc_symndx];
11745 for (r_symndx = 0;
11746 r_symndx < symtab_hdr->sh_info;
11747 r_symndx++)
11748 if (local_sections[r_symndx] == sec)
11749 break;
11750 if (r_symndx >= symtab_hdr->sh_info)
11751 r_symndx = 0;
11752 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
11753 if (r_symndx != 0)
11754 rel->r_addend -= (local_syms[r_symndx].st_value
11755 + sec->output_offset
11756 + sec->output_section->vma);
11757
11758 r_type = R_PPC64_TPREL16_LO;
11759 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11760 rel->r_offset = offset + d_offset;
11761 /* Zap the reloc on the _tls_get_addr call too. */
11762 BFD_ASSERT (offset == rel[1].r_offset);
f58d5a2d 11763 rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE);
727fc41e
AM
11764 insn2 = 0x38630000; /* addi 3,3,0 */
11765 insn3 = bfd_get_32 (output_bfd,
11766 contents + offset + 4);
11767 if (insn3 == NOP
11768 || insn3 == CROR_151515 || insn3 == CROR_313131)
11769 {
11770 rel->r_offset += 4;
11771 bfd_put_32 (output_bfd, insn2, contents + offset + 4);
11772 insn2 = NOP;
11773 }
11774 bfd_put_32 (output_bfd, insn2, contents + offset);
11775 rel--;
11776 continue;
11777 }
11778 break;
11779
411e1bfb 11780 case R_PPC64_DTPMOD64:
951fd09b
AM
11781 if (rel + 1 < relend
11782 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
11783 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 11784 {
951fd09b
AM
11785 if ((tls_mask & TLS_GD) == 0)
11786 {
11787 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
11788 if ((tls_mask & TLS_TPRELGD) != 0)
11789 r_type = R_PPC64_TPREL64;
11790 else
11791 {
4ce794b7 11792 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM
11793 r_type = R_PPC64_NONE;
11794 }
11795 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11796 }
11797 }
11798 else
11799 {
11800 if ((tls_mask & TLS_LD) == 0)
411e1bfb 11801 {
4ce794b7 11802 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 11803 r_type = R_PPC64_NONE;
951fd09b 11804 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 11805 }
411e1bfb
AM
11806 }
11807 break;
11808
11809 case R_PPC64_TPREL64:
951fd09b 11810 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM
11811 {
11812 r_type = R_PPC64_NONE;
11813 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
11814 }
11815 break;
11816 }
11817
11818 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 11819 insn = 0;
b25116a9
AM
11820 max_br_offset = 1 << 25;
11821 addend = rel->r_addend;
65f38f15 11822 switch (r_type)
5bd4f169
AM
11823 {
11824 default:
65f38f15 11825 break;
5bd4f169 11826
65f38f15
AM
11827 /* Branch taken prediction relocations. */
11828 case R_PPC64_ADDR14_BRTAKEN:
11829 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH
11830 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
11831 /* Fall thru. */
65f38f15 11832
86c76c7b 11833 /* Branch not taken prediction relocations. */
65f38f15
AM
11834 case R_PPC64_ADDR14_BRNTAKEN:
11835 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM
11836 insn |= bfd_get_32 (output_bfd,
11837 contents + rel->r_offset) & ~(0x01 << 21);
b25116a9 11838 /* Fall thru. */
86c76c7b 11839
b25116a9
AM
11840 case R_PPC64_REL14:
11841 max_br_offset = 1 << 15;
11842 /* Fall thru. */
5bd4f169 11843
65f38f15 11844 case R_PPC64_REL24:
ad8e1ba5
AM
11845 /* Calls to functions with a different TOC, such as calls to
11846 shared objects, need to alter the TOC pointer. This is
11847 done using a linkage stub. A REL24 branching to these
11848 linkage stubs needs to be followed by a nop, as the nop
11849 will be replaced with an instruction to restore the TOC
11850 base pointer. */
b25116a9 11851 stub_entry = NULL;
8387904d 11852 fdh = h;
b31867b6
AM
11853 if (h != NULL
11854 && h->oh != NULL
11855 && h->oh->is_func_descriptor)
11856 fdh = ppc_follow_link (h->oh);
11857 if (((fdh != NULL
11858 && fdh->elf.plt.plist != NULL)
8387904d 11859 || (sec != NULL
ad8e1ba5 11860 && sec->output_section != NULL
b25116a9 11861 && sec->id <= htab->top_id
ad8e1ba5 11862 && (htab->stub_group[sec->id].toc_off
25f23106
AM
11863 != htab->stub_group[input_section->id].toc_off))
11864 || (h == NULL
11865 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
721956f4 11866 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM
11867 rel, htab)) != NULL
11868 && (stub_entry->stub_type == ppc_stub_plt_call
11869 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
11870 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 11871 {
b25116a9 11872 bfd_boolean can_plt_call = FALSE;
721956f4 11873
eea6121a 11874 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 11875 {
b25116a9
AM
11876 unsigned long nop;
11877 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
11878 if (nop == NOP
11879 || nop == CROR_151515 || nop == CROR_313131)
41bd81ab 11880 {
a7f2871e
AM
11881 if (h != NULL
11882 && (h == htab->tls_get_addr_fd
11883 || h == htab->tls_get_addr)
11884 && !htab->no_tls_get_addr_opt)
11885 {
11886 /* Special stub used, leave nop alone. */
11887 }
11888 else
11889 bfd_put_32 (input_bfd, LD_R2_40R1,
11890 contents + rel->r_offset + 4);
b25116a9 11891 can_plt_call = TRUE;
41bd81ab 11892 }
5bd4f169 11893 }
721956f4
AM
11894
11895 if (!can_plt_call)
11896 {
ad8e1ba5
AM
11897 if (stub_entry->stub_type == ppc_stub_plt_call)
11898 {
11899 /* If this is a plain branch rather than a branch
4fa1c237
AM
11900 and link, don't require a nop. However, don't
11901 allow tail calls in a shared library as they
11902 will result in r2 being corrupted. */
b25116a9
AM
11903 unsigned long br;
11904 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
4fa1c237 11905 if (info->executable && (br & 1) == 0)
b25116a9 11906 can_plt_call = TRUE;
15b552e9
AM
11907 else
11908 stub_entry = NULL;
ad8e1ba5 11909 }
6ab189d5 11910 else if (h != NULL
039b3fef 11911 && strcmp (h->elf.root.root.string,
6ab189d5
AM
11912 ".__libc_start_main") == 0)
11913 {
11914 /* Allow crt1 branch to go via a toc adjusting stub. */
b25116a9 11915 can_plt_call = TRUE;
6ab189d5 11916 }
ad8e1ba5
AM
11917 else
11918 {
11919 if (strcmp (input_section->output_section->name,
11920 ".init") == 0
11921 || strcmp (input_section->output_section->name,
11922 ".fini") == 0)
11923 (*_bfd_error_handler)
d003868e 11924 (_("%B(%A+0x%lx): automatic multiple TOCs "
ad8e1ba5
AM
11925 "not supported using your crt files; "
11926 "recompile with -mminimal-toc or upgrade gcc"),
d003868e
AM
11927 input_bfd,
11928 input_section,
ad8e1ba5
AM
11929 (long) rel->r_offset);
11930 else
11931 (*_bfd_error_handler)
d003868e 11932 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
ad8e1ba5
AM
11933 "does not allow automatic multiple TOCs; "
11934 "recompile with -mminimal-toc or "
11935 "-fno-optimize-sibling-calls, "
11936 "or make `%s' extern"),
d003868e
AM
11937 input_bfd,
11938 input_section,
ad8e1ba5
AM
11939 (long) rel->r_offset,
11940 sym_name,
11941 sym_name);
11942 bfd_set_error (bfd_error_bad_value);
11943 ret = FALSE;
11944 }
721956f4
AM
11945 }
11946
b25116a9
AM
11947 if (can_plt_call
11948 && stub_entry->stub_type == ppc_stub_plt_call)
11949 unresolved_reloc = FALSE;
11950 }
11951
8387904d
AM
11952 if (stub_entry == NULL
11953 && get_opd_info (sec) != NULL)
11954 {
11955 /* The branch destination is the value of the opd entry. */
4cc603a5
AM
11956 bfd_vma off = (relocation + addend
11957 - sec->output_section->vma
11958 - sec->output_offset);
8387904d
AM
11959 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
11960 if (dest != (bfd_vma) -1)
11961 {
11962 relocation = dest;
11963 addend = 0;
11964 }
11965 }
11966
b25116a9
AM
11967 /* If the branch is out of reach we ought to have a long
11968 branch stub. */
11969 from = (rel->r_offset
11970 + input_section->output_offset
11971 + input_section->output_section->vma);
11972
11973 if (stub_entry == NULL
4cc603a5 11974 && (relocation + addend - from + max_br_offset
b25116a9
AM
11975 >= 2 * max_br_offset)
11976 && r_type != R_PPC64_ADDR14_BRTAKEN
11977 && r_type != R_PPC64_ADDR14_BRNTAKEN)
7b8f6675 11978 stub_entry = ppc_get_stub_entry (input_section, sec, fdh, rel,
039b3fef 11979 htab);
b25116a9
AM
11980
11981 if (stub_entry != NULL)
11982 {
11983 /* Munge up the value and addend so that we call the stub
11984 rather than the procedure directly. */
11985 relocation = (stub_entry->stub_offset
11986 + stub_entry->stub_sec->output_offset
11987 + stub_entry->stub_sec->output_section->vma);
11988 addend = 0;
11989 }
11990
11991 if (insn != 0)
11992 {
11993 if (is_power4)
721956f4 11994 {
b25116a9
AM
11995 /* Set 'a' bit. This is 0b00010 in BO field for branch
11996 on CR(BI) insns (BO == 001at or 011at), and 0b01000
11997 for branch on CTR insns (BO == 1a00t or 1a01t). */
11998 if ((insn & (0x14 << 21)) == (0x04 << 21))
11999 insn |= 0x02 << 21;
12000 else if ((insn & (0x14 << 21)) == (0x10 << 21))
12001 insn |= 0x08 << 21;
12002 else
12003 break;
12004 }
12005 else
12006 {
12007 /* Invert 'y' bit if not the default. */
4cc603a5 12008 if ((bfd_signed_vma) (relocation + addend - from) < 0)
b25116a9 12009 insn ^= 0x01 << 21;
721956f4 12010 }
b25116a9
AM
12011
12012 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5bd4f169 12013 }
e86ce104 12014
06da1e8e
AM
12015 /* NOP out calls to undefined weak functions.
12016 We can thus call a weak function without first
12017 checking whether the function is defined. */
b25116a9 12018 else if (h != NULL
039b3fef 12019 && h->elf.root.type == bfd_link_hash_undefweak
766bc656 12020 && h->elf.dynindx == -1
b25116a9
AM
12021 && r_type == R_PPC64_REL24
12022 && relocation == 0
4cc603a5 12023 && addend == 0)
e86ce104 12024 {
06da1e8e
AM
12025 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
12026 continue;
e86ce104 12027 }
65f38f15
AM
12028 break;
12029 }
5bd4f169 12030
65f38f15 12031 /* Set `addend'. */
411e1bfb 12032 tls_type = 0;
65f38f15
AM
12033 switch (r_type)
12034 {
12035 default:
12036 (*_bfd_error_handler)
d003868e
AM
12037 (_("%B: unknown relocation type %d for symbol %s"),
12038 input_bfd, (int) r_type, sym_name);
5bd4f169 12039
65f38f15 12040 bfd_set_error (bfd_error_bad_value);
b34976b6 12041 ret = FALSE;
65f38f15 12042 continue;
5bd4f169 12043
65f38f15 12044 case R_PPC64_NONE:
411e1bfb 12045 case R_PPC64_TLS:
727fc41e
AM
12046 case R_PPC64_TLSGD:
12047 case R_PPC64_TLSLD:
04c9666a
AM
12048 case R_PPC64_GNU_VTINHERIT:
12049 case R_PPC64_GNU_VTENTRY:
65f38f15 12050 continue;
5bd4f169
AM
12051
12052 /* GOT16 relocations. Like an ADDR16 using the symbol's
12053 address in the GOT as relocation value instead of the
411e1bfb 12054 symbol's value itself. Also, create a GOT entry for the
5bd4f169 12055 symbol and put the symbol value there. */
411e1bfb
AM
12056 case R_PPC64_GOT_TLSGD16:
12057 case R_PPC64_GOT_TLSGD16_LO:
12058 case R_PPC64_GOT_TLSGD16_HI:
12059 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 12060 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
12061 goto dogot;
12062
12063 case R_PPC64_GOT_TLSLD16:
12064 case R_PPC64_GOT_TLSLD16_LO:
12065 case R_PPC64_GOT_TLSLD16_HI:
12066 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 12067 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
12068 goto dogot;
12069
12070 case R_PPC64_GOT_TPREL16_DS:
12071 case R_PPC64_GOT_TPREL16_LO_DS:
12072 case R_PPC64_GOT_TPREL16_HI:
12073 case R_PPC64_GOT_TPREL16_HA:
12074 tls_type = TLS_TLS | TLS_TPREL;
12075 goto dogot;
12076
12077 case R_PPC64_GOT_DTPREL16_DS:
12078 case R_PPC64_GOT_DTPREL16_LO_DS:
12079 case R_PPC64_GOT_DTPREL16_HI:
12080 case R_PPC64_GOT_DTPREL16_HA:
12081 tls_type = TLS_TLS | TLS_DTPREL;
12082 goto dogot;
12083
65f38f15
AM
12084 case R_PPC64_GOT16:
12085 case R_PPC64_GOT16_LO:
12086 case R_PPC64_GOT16_HI:
12087 case R_PPC64_GOT16_HA:
12088 case R_PPC64_GOT16_DS:
12089 case R_PPC64_GOT16_LO_DS:
411e1bfb 12090 dogot:
5bd4f169
AM
12091 {
12092 /* Relocation is to the entry for this symbol in the global
12093 offset table. */
e717da7e 12094 asection *got;
d881513a 12095 bfd_vma *offp;
5bd4f169 12096 bfd_vma off;
d881513a 12097 unsigned long indx = 0;
927be08e 12098 struct got_entry *ent;
65f38f15 12099
d881513a
AM
12100 if (tls_type == (TLS_TLS | TLS_LD)
12101 && (h == NULL
f5385ebf 12102 || !h->elf.def_dynamic))
927be08e 12103 ent = ppc64_tlsld_got (input_bfd);
411e1bfb 12104 else
5bd4f169 12105 {
5bd4f169 12106
d881513a
AM
12107 if (h != NULL)
12108 {
12109 bfd_boolean dyn = htab->elf.dynamic_sections_created;
039b3fef
AM
12110 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
12111 &h->elf)
d881513a 12112 || (info->shared
039b3fef 12113 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
d881513a
AM
12114 /* This is actually a static link, or it is a
12115 -Bsymbolic link and the symbol is defined
12116 locally, or the symbol was forced to be local
12117 because of a version file. */
12118 ;
12119 else
12120 {
039b3fef 12121 indx = h->elf.dynindx;
d881513a
AM
12122 unresolved_reloc = FALSE;
12123 }
039b3fef 12124 ent = h->elf.got.glist;
d881513a 12125 }
411e1bfb 12126 else
5bd4f169 12127 {
d881513a
AM
12128 if (local_got_ents == NULL)
12129 abort ();
12130 ent = local_got_ents[r_symndx];
5bd4f169 12131 }
d881513a
AM
12132
12133 for (; ent != NULL; ent = ent->next)
4cc603a5 12134 if (ent->addend == orig_addend
e717da7e 12135 && ent->owner == input_bfd
d881513a
AM
12136 && ent->tls_type == tls_type)
12137 break;
5bd4f169 12138 }
411e1bfb 12139
927be08e
AM
12140 if (ent == NULL)
12141 abort ();
12142 if (ent->is_indirect)
12143 ent = ent->got.ent;
12144 offp = &ent->got.offset;
12145 got = ppc64_elf_tdata (ent->owner)->got;
e717da7e
AM
12146 if (got == NULL)
12147 abort ();
12148
411e1bfb
AM
12149 /* The offset must always be a multiple of 8. We use the
12150 least significant bit to record whether we have already
12151 processed this entry. */
d881513a 12152 off = *offp;
411e1bfb
AM
12153 if ((off & 1) != 0)
12154 off &= ~1;
5bd4f169
AM
12155 else
12156 {
411e1bfb
AM
12157 /* Generate relocs for the dynamic linker, except in
12158 the case of TLSLD where we'll use one entry per
12159 module. */
25f23106
AM
12160 asection *relgot;
12161 bfd_boolean ifunc;
e717da7e 12162
d881513a 12163 *offp = off | 1;
25f23106
AM
12164 relgot = NULL;
12165 ifunc = (h != NULL
12166 ? h->elf.type == STT_GNU_IFUNC
12167 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC);
4e795f50 12168 if ((info->shared || indx != 0)
927be08e
AM
12169 && (h == NULL
12170 || (tls_type == (TLS_TLS | TLS_LD)
12171 && !h->elf.def_dynamic)
039b3fef
AM
12172 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
12173 || h->elf.root.type != bfd_link_hash_undefweak))
927be08e 12174 relgot = ppc64_elf_tdata (ent->owner)->relgot;
25f23106
AM
12175 else if (ifunc)
12176 relgot = htab->reliplt;
12177 if (relgot != NULL)
5bd4f169 12178 {
e717da7e
AM
12179 outrel.r_offset = (got->output_section->vma
12180 + got->output_offset
411e1bfb 12181 + off);
4cc603a5 12182 outrel.r_addend = addend;
d881513a 12183 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 12184 {
411e1bfb 12185 outrel.r_addend = 0;
e515b051 12186 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM
12187 if (tls_type == (TLS_TLS | TLS_GD))
12188 {
e717da7e
AM
12189 loc = relgot->contents;
12190 loc += (relgot->reloc_count++
d881513a
AM
12191 * sizeof (Elf64_External_Rela));
12192 bfd_elf64_swap_reloca_out (output_bfd,
12193 &outrel, loc);
e515b051 12194 outrel.r_offset += 8;
4cc603a5 12195 outrel.r_addend = addend;
d881513a
AM
12196 outrel.r_info
12197 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 12198 }
411e1bfb 12199 }
951fd09b 12200 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 12201 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 12202 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 12203 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
25f23106
AM
12204 else if (indx != 0)
12205 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
12206 else
81407a69 12207 {
25f23106
AM
12208 if (ifunc)
12209 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
12210 else
12211 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM
12212
12213 /* Write the .got section contents for the sake
12214 of prelink. */
e717da7e 12215 loc = got->contents + off;
23fbd6fa
JJ
12216 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
12217 loc);
81407a69 12218 }
81407a69
AM
12219
12220 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM
12221 {
12222 outrel.r_addend += relocation;
12223 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 12224 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 12225 }
e717da7e
AM
12226 loc = relgot->contents;
12227 loc += (relgot->reloc_count++
411e1bfb
AM
12228 * sizeof (Elf64_External_Rela));
12229 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
12230 }
12231
ad8e1ba5 12232 /* Init the .got section contents here if we're not
81407a69 12233 emitting a reloc. */
d881513a 12234 else
411e1bfb 12235 {
4cc603a5 12236 relocation += addend;
7b609f53
AM
12237 if (tls_type == (TLS_TLS | TLS_LD))
12238 relocation = 1;
12239 else if (tls_type != 0)
411e1bfb 12240 {
e1918d23 12241 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 12242 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 12243 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 12244
7b609f53
AM
12245 if (tls_type == (TLS_TLS | TLS_GD))
12246 {
12247 bfd_put_64 (output_bfd, relocation,
e717da7e 12248 got->contents + off + 8);
7b609f53
AM
12249 relocation = 1;
12250 }
411e1bfb 12251 }
7b609f53 12252
411e1bfb 12253 bfd_put_64 (output_bfd, relocation,
e717da7e 12254 got->contents + off);
5bd4f169
AM
12255 }
12256 }
12257
65f38f15
AM
12258 if (off >= (bfd_vma) -2)
12259 abort ();
12260
bf102f86
AM
12261 relocation = got->output_section->vma + got->output_offset + off;
12262 addend = -(TOCstart + htab->stub_group[input_section->id].toc_off);
5bd4f169 12263 }
65f38f15
AM
12264 break;
12265
12266 case R_PPC64_PLT16_HA:
12267 case R_PPC64_PLT16_HI:
12268 case R_PPC64_PLT16_LO:
12269 case R_PPC64_PLT32:
12270 case R_PPC64_PLT64:
12271 /* Relocation is to the entry for this symbol in the
12272 procedure linkage table. */
12273
12274 /* Resolve a PLT reloc against a local symbol directly,
12275 without using the procedure linkage table. */
12276 if (h == NULL)
12277 break;
12278
411e1bfb
AM
12279 /* It's possible that we didn't make a PLT entry for this
12280 symbol. This happens when statically linking PIC code,
12281 or when using -Bsymbolic. Go find a match if there is a
12282 PLT entry. */
4ce794b7 12283 if (htab->plt != NULL)
65f38f15 12284 {
411e1bfb 12285 struct plt_entry *ent;
039b3fef 12286 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
4cc603a5 12287 if (ent->addend == orig_addend
411e1bfb
AM
12288 && ent->plt.offset != (bfd_vma) -1)
12289 {
4ce794b7
AM
12290 relocation = (htab->plt->output_section->vma
12291 + htab->plt->output_offset
411e1bfb
AM
12292 + ent->plt.offset);
12293 unresolved_reloc = FALSE;
12294 }
65f38f15 12295 }
65f38f15 12296 break;
5bd4f169 12297
0b13192e
AM
12298 case R_PPC64_TOC:
12299 /* Relocation value is TOC base. */
12300 relocation = TOCstart;
12301 if (r_symndx == 0)
12302 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM
12303 else if (unresolved_reloc)
12304 ;
12305 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM
12306 relocation += htab->stub_group[sec->id].toc_off;
12307 else
12308 unresolved_reloc = TRUE;
ab96bf03 12309 goto dodyn;
0b13192e 12310
5bd4f169
AM
12311 /* TOC16 relocs. We want the offset relative to the TOC base,
12312 which is the address of the start of the TOC plus 0x8000.
12313 The TOC consists of sections .got, .toc, .tocbss, and .plt,
12314 in this order. */
65f38f15
AM
12315 case R_PPC64_TOC16:
12316 case R_PPC64_TOC16_LO:
12317 case R_PPC64_TOC16_HI:
12318 case R_PPC64_TOC16_DS:
12319 case R_PPC64_TOC16_LO_DS:
12320 case R_PPC64_TOC16_HA:
ad8e1ba5 12321 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM
12322 break;
12323
12324 /* Relocate against the beginning of the section. */
65f38f15
AM
12325 case R_PPC64_SECTOFF:
12326 case R_PPC64_SECTOFF_LO:
12327 case R_PPC64_SECTOFF_HI:
12328 case R_PPC64_SECTOFF_DS:
12329 case R_PPC64_SECTOFF_LO_DS:
12330 case R_PPC64_SECTOFF_HA:
4ce794b7 12331 if (sec != NULL)
65f38f15 12332 addend -= sec->output_section->vma;
5bd4f169
AM
12333 break;
12334
25f23106
AM
12335 case R_PPC64_REL16:
12336 case R_PPC64_REL16_LO:
12337 case R_PPC64_REL16_HI:
12338 case R_PPC64_REL16_HA:
12339 break;
12340
721956f4
AM
12341 case R_PPC64_REL14:
12342 case R_PPC64_REL14_BRNTAKEN:
12343 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM
12344 case R_PPC64_REL24:
12345 break;
12346
411e1bfb
AM
12347 case R_PPC64_TPREL16:
12348 case R_PPC64_TPREL16_LO:
12349 case R_PPC64_TPREL16_HI:
12350 case R_PPC64_TPREL16_HA:
12351 case R_PPC64_TPREL16_DS:
12352 case R_PPC64_TPREL16_LO_DS:
12353 case R_PPC64_TPREL16_HIGHER:
12354 case R_PPC64_TPREL16_HIGHERA:
12355 case R_PPC64_TPREL16_HIGHEST:
12356 case R_PPC64_TPREL16_HIGHESTA:
766bc656
AM
12357 if (h != NULL
12358 && h->elf.root.type == bfd_link_hash_undefweak
12359 && h->elf.dynindx == -1)
12360 {
12361 /* Make this relocation against an undefined weak symbol
12362 resolve to zero. This is really just a tweak, since
12363 code using weak externs ought to check that they are
12364 defined before using them. */
12365 bfd_byte *p = contents + rel->r_offset - d_offset;
12366
12367 insn = bfd_get_32 (output_bfd, p);
12368 insn = _bfd_elf_ppc_at_tprel_transform (insn, 13);
12369 if (insn != 0)
12370 bfd_put_32 (output_bfd, insn, p);
12371 break;
12372 }
e1918d23 12373 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM
12374 if (info->shared)
12375 /* The TPREL16 relocs shouldn't really be used in shared
12376 libs as they will result in DT_TEXTREL being set, but
12377 support them anyway. */
12378 goto dodyn;
12379 break;
12380
12381 case R_PPC64_DTPREL16:
12382 case R_PPC64_DTPREL16_LO:
12383 case R_PPC64_DTPREL16_HI:
12384 case R_PPC64_DTPREL16_HA:
12385 case R_PPC64_DTPREL16_DS:
12386 case R_PPC64_DTPREL16_LO_DS:
12387 case R_PPC64_DTPREL16_HIGHER:
12388 case R_PPC64_DTPREL16_HIGHERA:
12389 case R_PPC64_DTPREL16_HIGHEST:
12390 case R_PPC64_DTPREL16_HIGHESTA:
e1918d23 12391 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM
12392 break;
12393
e515b051
AM
12394 case R_PPC64_DTPMOD64:
12395 relocation = 1;
12396 addend = 0;
12397 goto dodyn;
12398
411e1bfb 12399 case R_PPC64_TPREL64:
e1918d23 12400 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM
12401 goto dodyn;
12402
12403 case R_PPC64_DTPREL64:
e1918d23 12404 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM
12405 /* Fall thru */
12406
65f38f15
AM
12407 /* Relocations that may need to be propagated if this is a
12408 dynamic object. */
04c9666a 12409 case R_PPC64_REL30:
65f38f15
AM
12410 case R_PPC64_REL32:
12411 case R_PPC64_REL64:
12412 case R_PPC64_ADDR14:
12413 case R_PPC64_ADDR14_BRNTAKEN:
12414 case R_PPC64_ADDR14_BRTAKEN:
12415 case R_PPC64_ADDR16:
12416 case R_PPC64_ADDR16_DS:
12417 case R_PPC64_ADDR16_HA:
12418 case R_PPC64_ADDR16_HI:
12419 case R_PPC64_ADDR16_HIGHER:
12420 case R_PPC64_ADDR16_HIGHERA:
12421 case R_PPC64_ADDR16_HIGHEST:
12422 case R_PPC64_ADDR16_HIGHESTA:
12423 case R_PPC64_ADDR16_LO:
12424 case R_PPC64_ADDR16_LO_DS:
12425 case R_PPC64_ADDR24:
65f38f15
AM
12426 case R_PPC64_ADDR32:
12427 case R_PPC64_ADDR64:
12428 case R_PPC64_UADDR16:
12429 case R_PPC64_UADDR32:
12430 case R_PPC64_UADDR64:
411e1bfb 12431 dodyn:
5d1634d7 12432 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
12433 break;
12434
41bd81ab
AM
12435 if (NO_OPD_RELOCS && is_opd)
12436 break;
12437
65f38f15 12438 if ((info->shared
4e795f50 12439 && (h == NULL
039b3fef
AM
12440 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
12441 || h->elf.root.type != bfd_link_hash_undefweak)
1d483afe 12442 && (must_be_dyn_reloc (info, r_type)
039b3fef 12443 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
f4656909
AM
12444 || (ELIMINATE_COPY_RELOCS
12445 && !info->shared
65f38f15 12446 && h != NULL
039b3fef 12447 && h->elf.dynindx != -1
f5385ebf 12448 && !h->elf.non_got_ref
25f23106
AM
12449 && !h->elf.def_regular)
12450 || (!info->shared
12451 && (h != NULL
12452 ? h->elf.type == STT_GNU_IFUNC
12453 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)))
65f38f15 12454 {
b34976b6 12455 bfd_boolean skip, relocate;
65f38f15 12456 asection *sreloc;
1cf1f670 12457 bfd_vma out_off;
65f38f15
AM
12458
12459 /* When generating a dynamic object, these relocations
12460 are copied into the output file to be resolved at run
12461 time. */
12462
b34976b6
AM
12463 skip = FALSE;
12464 relocate = FALSE;
65f38f15 12465
1cf1f670
AM
12466 out_off = _bfd_elf_section_offset (output_bfd, info,
12467 input_section, rel->r_offset);
12468 if (out_off == (bfd_vma) -1)
b34976b6 12469 skip = TRUE;
1cf1f670 12470 else if (out_off == (bfd_vma) -2)
b34976b6 12471 skip = TRUE, relocate = TRUE;
1cf1f670
AM
12472 out_off += (input_section->output_section->vma
12473 + input_section->output_offset);
12474 outrel.r_offset = out_off;
411e1bfb 12475 outrel.r_addend = rel->r_addend;
65f38f15 12476
1cf1f670
AM
12477 /* Optimize unaligned reloc use. */
12478 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
12479 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
12480 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
12481 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
12482 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
12483 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
12484 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
12485 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
12486 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
12487
65f38f15 12488 if (skip)
0bb2d96a 12489 memset (&outrel, 0, sizeof outrel);
039b3fef 12490 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
0b13192e
AM
12491 && !is_opd
12492 && r_type != R_PPC64_TOC)
039b3fef 12493 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
65f38f15
AM
12494 else
12495 {
41bd81ab
AM
12496 /* This symbol is local, or marked to become local,
12497 or this is an opd section reloc which must point
12498 at a local function. */
65f38f15 12499 outrel.r_addend += relocation;
e86ce104 12500 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 12501 {
3fad3c7c 12502 if (is_opd && h != NULL)
afbe61cf
AM
12503 {
12504 /* Lie about opd entries. This case occurs
12505 when building shared libraries and we
12506 reference a function in another shared
3fad3c7c
AM
12507 lib. The same thing happens for a weak
12508 definition in an application that's
12509 overridden by a strong definition in a
12510 shared lib. (I believe this is a generic
12511 bug in binutils handling of weak syms.)
12512 In these cases we won't use the opd
1e2f5b6e 12513 entry in this lib. */
b34976b6 12514 unresolved_reloc = FALSE;
afbe61cf 12515 }
25f23106
AM
12516 if (!is_opd
12517 && r_type == R_PPC64_ADDR64
12518 && (h != NULL
12519 ? h->elf.type == STT_GNU_IFUNC
12520 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))
12521 outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
12522 else
12523 {
12524 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69 12525
25f23106
AM
12526 /* We need to relocate .opd contents for ld.so.
12527 Prelink also wants simple and consistent rules
12528 for relocs. This make all RELATIVE relocs have
12529 *r_offset equal to r_addend. */
12530 relocate = TRUE;
12531 }
65f38f15
AM
12532 }
12533 else
12534 {
12535 long indx = 0;
12536
25f23106
AM
12537 if (h != NULL
12538 ? h->elf.type == STT_GNU_IFUNC
12539 : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
12540 {
12541 (*_bfd_error_handler)
12542 (_("%B(%A+0x%lx): relocation %s for indirect "
12543 "function %s unsupported"),
12544 input_bfd,
12545 input_section,
12546 (long) rel->r_offset,
12547 ppc64_elf_howto_table[r_type]->name,
12548 sym_name);
12549 ret = FALSE;
12550 }
12551 else if (r_symndx == 0 || bfd_is_abs_section (sec))
65f38f15
AM
12552 ;
12553 else if (sec == NULL || sec->owner == NULL)
12554 {
12555 bfd_set_error (bfd_error_bad_value);
b34976b6 12556 return FALSE;
65f38f15
AM
12557 }
12558 else
12559 {
12560 asection *osec;
12561
12562 osec = sec->output_section;
12563 indx = elf_section_data (osec)->dynindx;
12564
74541ad4
AM
12565 if (indx == 0)
12566 {
12567 if ((osec->flags & SEC_READONLY) == 0
12568 && htab->elf.data_index_section != NULL)
12569 osec = htab->elf.data_index_section;
12570 else
12571 osec = htab->elf.text_index_section;
12572 indx = elf_section_data (osec)->dynindx;
12573 }
12574 BFD_ASSERT (indx != 0);
12575
65f38f15
AM
12576 /* We are turning this relocation into one
12577 against a section symbol, so subtract out
12578 the output section's address but not the
12579 offset of the input section in the output
12580 section. */
12581 outrel.r_addend -= osec->vma;
12582 }
12583
12584 outrel.r_info = ELF64_R_INFO (indx, r_type);
12585 }
12586 }
12587
12588 sreloc = elf_section_data (input_section)->sreloc;
25f23106
AM
12589 if (!htab->elf.dynamic_sections_created)
12590 sreloc = htab->reliplt;
65f38f15
AM
12591 if (sreloc == NULL)
12592 abort ();
12593
dfbb6ac9
AM
12594 if (sreloc->reloc_count * sizeof (Elf64_External_Rela)
12595 >= sreloc->size)
12596 abort ();
947216bf
AM
12597 loc = sreloc->contents;
12598 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM
12599 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
12600
12601 /* If this reloc is against an external symbol, it will
12602 be computed at runtime, so there's no need to do
81407a69
AM
12603 anything now. However, for the sake of prelink ensure
12604 that the section contents are a known value. */
65f38f15 12605 if (! relocate)
81407a69
AM
12606 {
12607 unresolved_reloc = FALSE;
12608 /* The value chosen here is quite arbitrary as ld.so
12609 ignores section contents except for the special
12610 case of .opd where the contents might be accessed
12611 before relocation. Choose zero, as that won't
12612 cause reloc overflow. */
12613 relocation = 0;
12614 addend = 0;
12615 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
12616 to improve backward compatibility with older
12617 versions of ld. */
12618 if (r_type == R_PPC64_ADDR64)
12619 addend = outrel.r_addend;
12620 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 12621 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM
12622 addend = (input_section->output_section->vma
12623 + input_section->output_offset
12624 + rel->r_offset);
81407a69 12625 }
65f38f15 12626 }
5bd4f169
AM
12627 break;
12628
65f38f15
AM
12629 case R_PPC64_COPY:
12630 case R_PPC64_GLOB_DAT:
12631 case R_PPC64_JMP_SLOT:
25f23106 12632 case R_PPC64_JMP_IREL:
65f38f15
AM
12633 case R_PPC64_RELATIVE:
12634 /* We shouldn't ever see these dynamic relocs in relocatable
12635 files. */
ae9a127f 12636 /* Fall through. */
65f38f15
AM
12637
12638 case R_PPC64_PLTGOT16:
12639 case R_PPC64_PLTGOT16_DS:
12640 case R_PPC64_PLTGOT16_HA:
12641 case R_PPC64_PLTGOT16_HI:
12642 case R_PPC64_PLTGOT16_LO:
12643 case R_PPC64_PLTGOT16_LO_DS:
12644 case R_PPC64_PLTREL32:
12645 case R_PPC64_PLTREL64:
12646 /* These ones haven't been implemented yet. */
12647
12648 (*_bfd_error_handler)
d003868e
AM
12649 (_("%B: relocation %s is not supported for symbol %s."),
12650 input_bfd,
4ce794b7 12651 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM
12652
12653 bfd_set_error (bfd_error_invalid_operation);
b34976b6 12654 ret = FALSE;
5bd4f169 12655 continue;
65f38f15 12656 }
5bd4f169 12657
65f38f15
AM
12658 /* Do any further special processing. */
12659 switch (r_type)
12660 {
12661 default:
12662 break;
12663
12664 case R_PPC64_ADDR16_HA:
25f23106 12665 case R_PPC64_REL16_HA:
65f38f15
AM
12666 case R_PPC64_ADDR16_HIGHERA:
12667 case R_PPC64_ADDR16_HIGHESTA:
65f38f15
AM
12668 case R_PPC64_TOC16_HA:
12669 case R_PPC64_SECTOFF_HA:
411e1bfb
AM
12670 case R_PPC64_TPREL16_HA:
12671 case R_PPC64_DTPREL16_HA:
411e1bfb
AM
12672 case R_PPC64_TPREL16_HIGHER:
12673 case R_PPC64_TPREL16_HIGHERA:
12674 case R_PPC64_TPREL16_HIGHEST:
12675 case R_PPC64_TPREL16_HIGHESTA:
12676 case R_PPC64_DTPREL16_HIGHER:
12677 case R_PPC64_DTPREL16_HIGHERA:
12678 case R_PPC64_DTPREL16_HIGHEST:
12679 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM
12680 /* It's just possible that this symbol is a weak symbol
12681 that's not actually defined anywhere. In that case,
12682 'sec' would be NULL, and we should leave the symbol
12683 alone (it will be set to zero elsewhere in the link). */
5c5f6e17
AM
12684 if (sec == NULL)
12685 break;
12686 /* Fall thru */
12687
12688 case R_PPC64_GOT16_HA:
12689 case R_PPC64_PLTGOT16_HA:
12690 case R_PPC64_PLT16_HA:
12691 case R_PPC64_GOT_TLSGD16_HA:
12692 case R_PPC64_GOT_TLSLD16_HA:
12693 case R_PPC64_GOT_TPREL16_HA:
12694 case R_PPC64_GOT_DTPREL16_HA:
12695 /* Add 0x10000 if sign bit in 0:15 is set.
12696 Bits 0:15 are not used. */
12697 addend += 0x8000;
65f38f15
AM
12698 break;
12699
12700 case R_PPC64_ADDR16_DS:
12701 case R_PPC64_ADDR16_LO_DS:
12702 case R_PPC64_GOT16_DS:
12703 case R_PPC64_GOT16_LO_DS:
12704 case R_PPC64_PLT16_LO_DS:
12705 case R_PPC64_SECTOFF_DS:
12706 case R_PPC64_SECTOFF_LO_DS:
12707 case R_PPC64_TOC16_DS:
12708 case R_PPC64_TOC16_LO_DS:
12709 case R_PPC64_PLTGOT16_DS:
12710 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM
12711 case R_PPC64_GOT_TPREL16_DS:
12712 case R_PPC64_GOT_TPREL16_LO_DS:
12713 case R_PPC64_GOT_DTPREL16_DS:
12714 case R_PPC64_GOT_DTPREL16_LO_DS:
12715 case R_PPC64_TPREL16_DS:
12716 case R_PPC64_TPREL16_LO_DS:
12717 case R_PPC64_DTPREL16_DS:
12718 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM
12719 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
12720 mask = 3;
12721 /* If this reloc is against an lq insn, then the value must be
12722 a multiple of 16. This is somewhat of a hack, but the
12723 "correct" way to do this by defining _DQ forms of all the
12724 _DS relocs bloats all reloc switches in this file. It
12725 doesn't seem to make much sense to use any of these relocs
12726 in data, so testing the insn should be safe. */
494dac0c 12727 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM
12728 mask = 15;
12729 if (((relocation + addend) & mask) != 0)
65f38f15
AM
12730 {
12731 (*_bfd_error_handler)
d003868e
AM
12732 (_("%B: error: relocation %s not a multiple of %d"),
12733 input_bfd,
4ce794b7 12734 ppc64_elf_howto_table[r_type]->name,
adadcc0c 12735 mask + 1);
65f38f15 12736 bfd_set_error (bfd_error_bad_value);
b34976b6 12737 ret = FALSE;
65f38f15
AM
12738 continue;
12739 }
12740 break;
5bd4f169
AM
12741 }
12742
239e1f3a
AM
12743 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
12744 because such sections are not SEC_ALLOC and thus ld.so will
12745 not process them. */
65f38f15 12746 if (unresolved_reloc
239e1f3a 12747 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 12748 && h->elf.def_dynamic))
9c07fe7c
AM
12749 {
12750 (*_bfd_error_handler)
d003868e
AM
12751 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
12752 input_bfd,
12753 input_section,
9c07fe7c 12754 (long) rel->r_offset,
7b609f53 12755 ppc64_elf_howto_table[(int) r_type]->name,
039b3fef 12756 h->elf.root.root.string);
b34976b6 12757 ret = FALSE;
9c07fe7c 12758 }
5bd4f169 12759
65f38f15 12760 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM
12761 input_bfd,
12762 input_section,
12763 contents,
411e1bfb 12764 rel->r_offset,
5bd4f169
AM
12765 relocation,
12766 addend);
12767
ef60b7ff 12768 if (r != bfd_reloc_ok)
5bd4f169 12769 {
cd27b276
AM
12770 if (sym_name == NULL)
12771 sym_name = "(null)";
12772 if (r == bfd_reloc_overflow)
5bd4f169 12773 {
cd27b276
AM
12774 if (warned)
12775 continue;
12776 if (h != NULL
039b3fef 12777 && h->elf.root.type == bfd_link_hash_undefweak
4ce794b7 12778 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM
12779 {
12780 /* Assume this is a call protected by other code that
12781 detects the symbol is undefined. If this is the case,
12782 we can safely ignore the overflow. If not, the
12783 program is hosed anyway, and a little warning isn't
12784 going to help. */
12785
12786 continue;
12787 }
12788
ef60b7ff 12789 if (!((*info->callbacks->reloc_overflow)
dfeffb9f
L
12790 (info, (h ? &h->elf.root : NULL), sym_name,
12791 ppc64_elf_howto_table[r_type]->name,
4cc603a5 12792 orig_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 12793 return FALSE;
ef60b7ff
AM
12794 }
12795 else
12796 {
12797 (*_bfd_error_handler)
d003868e
AM
12798 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
12799 input_bfd,
12800 input_section,
7b609f53 12801 (long) rel->r_offset,
4ce794b7 12802 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM
12803 sym_name,
12804 (int) r);
b34976b6 12805 ret = FALSE;
ef60b7ff 12806 }
5bd4f169 12807 }
5bd4f169
AM
12808 }
12809
645ea6a9
AM
12810 /* If we're emitting relocations, then shortly after this function
12811 returns, reloc offsets and addends for this section will be
12812 adjusted. Worse, reloc symbol indices will be for the output
8860955f
AM
12813 file rather than the input. Save a copy of the relocs for
12814 opd_entry_value. */
4cc603a5 12815 if (is_opd && (info->emitrelocations || info->relocatable))
8860955f
AM
12816 {
12817 bfd_size_type amt;
12818 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
12819 rel = bfd_alloc (input_bfd, amt);
12820 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
12821 ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
12822 if (rel == NULL)
12823 return FALSE;
12824 memcpy (rel, relocs, amt);
12825 }
5bd4f169
AM
12826 return ret;
12827}
12828
754021d0
AM
12829/* Adjust the value of any local symbols in opd sections. */
12830
6e0b88f1 12831static int
754021d0
AM
12832ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
12833 const char *name ATTRIBUTE_UNUSED,
12834 Elf_Internal_Sym *elfsym,
12835 asection *input_sec,
12836 struct elf_link_hash_entry *h)
12837{
74f0fb50
AM
12838 struct _opd_sec_data *opd;
12839 long adjust;
754021d0
AM
12840 bfd_vma value;
12841
4025353c 12842 if (h != NULL)
6e0b88f1 12843 return 1;
4025353c 12844
74f0fb50
AM
12845 opd = get_opd_info (input_sec);
12846 if (opd == NULL || opd->adjust == NULL)
6e0b88f1 12847 return 1;
754021d0
AM
12848
12849 value = elfsym->st_value - input_sec->output_offset;
12850 if (!info->relocatable)
12851 value -= input_sec->output_section->vma;
12852
74f0fb50 12853 adjust = opd->adjust[value / 8];
4025353c 12854 if (adjust == -1)
6e0b88f1
AM
12855 return 2;
12856
12857 elfsym->st_value += adjust;
12858 return 1;
754021d0
AM
12859}
12860
5bd4f169
AM
12861/* Finish up dynamic symbol handling. We set the contents of various
12862 dynamic sections here. */
12863
b34976b6 12864static bfd_boolean
4ce794b7
AM
12865ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
12866 struct bfd_link_info *info,
12867 struct elf_link_hash_entry *h,
12868 Elf_Internal_Sym *sym)
5bd4f169 12869{
65f38f15 12870 struct ppc_link_hash_table *htab;
8387904d
AM
12871 struct plt_entry *ent;
12872 Elf_Internal_Rela rela;
12873 bfd_byte *loc;
5bd4f169 12874
65f38f15 12875 htab = ppc_hash_table (info);
4dfe6ac6
NC
12876 if (htab == NULL)
12877 return FALSE;
5bd4f169 12878
8387904d
AM
12879 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
12880 if (ent->plt.offset != (bfd_vma) -1)
12881 {
12882 /* This symbol has an entry in the procedure linkage
12883 table. Set it up. */
e054468f
AM
12884 if (!htab->elf.dynamic_sections_created
12885 || h->dynindx == -1)
12886 {
12887 BFD_ASSERT (h->type == STT_GNU_IFUNC
12888 && h->def_regular
12889 && (h->root.type == bfd_link_hash_defined
12890 || h->root.type == bfd_link_hash_defweak));
25f23106
AM
12891 rela.r_offset = (htab->iplt->output_section->vma
12892 + htab->iplt->output_offset
12893 + ent->plt.offset);
12894 rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
e054468f
AM
12895 rela.r_addend = (h->root.u.def.value
12896 + h->root.u.def.section->output_offset
12897 + h->root.u.def.section->output_section->vma
12898 + ent->addend);
25f23106
AM
12899 loc = (htab->reliplt->contents
12900 + (htab->reliplt->reloc_count++
12901 * sizeof (Elf64_External_Rela)));
e054468f
AM
12902 }
12903 else
12904 {
25f23106
AM
12905 rela.r_offset = (htab->plt->output_section->vma
12906 + htab->plt->output_offset
12907 + ent->plt.offset);
e054468f
AM
12908 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
12909 rela.r_addend = ent->addend;
25f23106
AM
12910 loc = (htab->relplt->contents
12911 + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE)
12912 / (PLT_ENTRY_SIZE / sizeof (Elf64_External_Rela))));
e054468f 12913 }
8387904d
AM
12914 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
12915 }
5bd4f169 12916
f5385ebf 12917 if (h->needs_copy)
5bd4f169 12918 {
65f38f15 12919 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 12920
65f38f15
AM
12921 if (h->dynindx == -1
12922 || (h->root.type != bfd_link_hash_defined
12923 && h->root.type != bfd_link_hash_defweak)
4ce794b7 12924 || htab->relbss == NULL)
65f38f15 12925 abort ();
5bd4f169
AM
12926
12927 rela.r_offset = (h->root.u.def.value
12928 + h->root.u.def.section->output_section->vma
12929 + h->root.u.def.section->output_offset);
12930 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
12931 rela.r_addend = 0;
4ce794b7
AM
12932 loc = htab->relbss->contents;
12933 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 12934 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM
12935 }
12936
5bd4f169
AM
12937 /* Mark some specially defined symbols as absolute. */
12938 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
12939 sym->st_shndx = SHN_ABS;
12940
b34976b6 12941 return TRUE;
5bd4f169
AM
12942}
12943
65f38f15
AM
12944/* Used to decide how to sort relocs in an optimal manner for the
12945 dynamic linker, before writing them out. */
12946
12947static enum elf_reloc_type_class
4ce794b7 12948ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 12949{
04c9666a 12950 enum elf_ppc64_reloc_type r_type;
a33d1f77 12951
4ce794b7 12952 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 12953 switch (r_type)
65f38f15
AM
12954 {
12955 case R_PPC64_RELATIVE:
12956 return reloc_class_relative;
12957 case R_PPC64_JMP_SLOT:
12958 return reloc_class_plt;
12959 case R_PPC64_COPY:
12960 return reloc_class_copy;
12961 default:
12962 return reloc_class_normal;
12963 }
12964}
12965
5bd4f169
AM
12966/* Finish up the dynamic sections. */
12967
b34976b6 12968static bfd_boolean
4ce794b7
AM
12969ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
12970 struct bfd_link_info *info)
5bd4f169 12971{
65f38f15
AM
12972 struct ppc_link_hash_table *htab;
12973 bfd *dynobj;
5bd4f169 12974 asection *sdyn;
5bd4f169 12975
65f38f15 12976 htab = ppc_hash_table (info);
4dfe6ac6
NC
12977 if (htab == NULL)
12978 return FALSE;
12979
65f38f15 12980 dynobj = htab->elf.dynobj;
5bd4f169
AM
12981 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
12982
65f38f15 12983 if (htab->elf.dynamic_sections_created)
5bd4f169 12984 {
5bd4f169
AM
12985 Elf64_External_Dyn *dyncon, *dynconend;
12986
4ce794b7 12987 if (sdyn == NULL || htab->got == NULL)
65f38f15 12988 abort ();
5bd4f169
AM
12989
12990 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 12991 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM
12992 for (; dyncon < dynconend; dyncon++)
12993 {
12994 Elf_Internal_Dyn dyn;
19397422 12995 asection *s;
5bd4f169
AM
12996
12997 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
12998
12999 switch (dyn.d_tag)
13000 {
65f38f15
AM
13001 default:
13002 continue;
5bd4f169 13003
5d1634d7 13004 case DT_PPC64_GLINK:
4ce794b7 13005 s = htab->glink;
6348e046 13006 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM
13007 /* We stupidly defined DT_PPC64_GLINK to be the start
13008 of glink rather than the first entry point, which is
13009 what ld.so needs, and now have a bigger stub to
13010 support automatic multiple TOCs. */
13011 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM
13012 break;
13013
19397422
AM
13014 case DT_PPC64_OPD:
13015 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM
13016 if (s == NULL)
13017 continue;
13018 dyn.d_un.d_ptr = s->vma;
19397422
AM
13019 break;
13020
13021 case DT_PPC64_OPDSZ:
13022 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM
13023 if (s == NULL)
13024 continue;
eea6121a 13025 dyn.d_un.d_val = s->size;
19397422
AM
13026 break;
13027
65f38f15 13028 case DT_PLTGOT:
4ce794b7 13029 s = htab->plt;
6348e046 13030 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM
13031 break;
13032
13033 case DT_JMPREL:
4ce794b7 13034 s = htab->relplt;
6348e046 13035 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 13036 break;
5bd4f169 13037
65f38f15 13038 case DT_PLTRELSZ:
eea6121a 13039 dyn.d_un.d_val = htab->relplt->size;
5d1634d7
AM
13040 break;
13041
13042 case DT_RELASZ:
13043 /* Don't count procedure linkage table relocs in the
13044 overall reloc count. */
4ce794b7 13045 s = htab->relplt;
6348e046
AM
13046 if (s == NULL)
13047 continue;
eea6121a 13048 dyn.d_un.d_val -= s->size;
6348e046
AM
13049 break;
13050
13051 case DT_RELA:
13052 /* We may not be using the standard ELF linker script.
13053 If .rela.plt is the first .rela section, we adjust
13054 DT_RELA to not include it. */
4ce794b7 13055 s = htab->relplt;
6348e046
AM
13056 if (s == NULL)
13057 continue;
13058 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
13059 continue;
eea6121a 13060 dyn.d_un.d_ptr += s->size;
65f38f15 13061 break;
5bd4f169 13062 }
5bd4f169 13063
65f38f15 13064 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 13065 }
5bd4f169
AM
13066 }
13067
eea6121a 13068 if (htab->got != NULL && htab->got->size != 0)
5d1634d7
AM
13069 {
13070 /* Fill in the first entry in the global offset table.
13071 We use it to hold the link-time TOCbase. */
13072 bfd_put_64 (output_bfd,
60ee0d4a 13073 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 13074 htab->got->contents);
5d1634d7
AM
13075
13076 /* Set .got entry size. */
4ce794b7 13077 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM
13078 }
13079
eea6121a 13080 if (htab->plt != NULL && htab->plt->size != 0)
5d1634d7
AM
13081 {
13082 /* Set .plt entry size. */
4ce794b7 13083 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM
13084 = PLT_ENTRY_SIZE;
13085 }
13086
84f5d08e
AM
13087 /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
13088 brlt ourselves if emitrelocations. */
13089 if (htab->brlt != NULL
13090 && htab->brlt->reloc_count != 0
13091 && !_bfd_elf_link_output_relocs (output_bfd,
13092 htab->brlt,
13093 &elf_section_data (htab->brlt)->rel_hdr,
13094 elf_section_data (htab->brlt)->relocs,
13095 NULL))
13096 return FALSE;
13097
176a0d42
AM
13098 if (htab->glink != NULL
13099 && htab->glink->reloc_count != 0
13100 && !_bfd_elf_link_output_relocs (output_bfd,
13101 htab->glink,
13102 &elf_section_data (htab->glink)->rel_hdr,
13103 elf_section_data (htab->glink)->relocs,
13104 NULL))
13105 return FALSE;
13106
e717da7e 13107 /* We need to handle writing out multiple GOT sections ourselves,
7b53ace3
AM
13108 since we didn't add them to DYNOBJ. We know dynobj is the first
13109 bfd. */
e717da7e
AM
13110 while ((dynobj = dynobj->link_next) != NULL)
13111 {
13112 asection *s;
7b53ace3 13113
0c8d6e5c 13114 if (!is_ppc64_elf (dynobj))
7b53ace3
AM
13115 continue;
13116
e717da7e
AM
13117 s = ppc64_elf_tdata (dynobj)->got;
13118 if (s != NULL
eea6121a 13119 && s->size != 0
e717da7e
AM
13120 && s->output_section != bfd_abs_section_ptr
13121 && !bfd_set_section_contents (output_bfd, s->output_section,
13122 s->contents, s->output_offset,
eea6121a 13123 s->size))
e717da7e
AM
13124 return FALSE;
13125 s = ppc64_elf_tdata (dynobj)->relgot;
13126 if (s != NULL
eea6121a 13127 && s->size != 0
e717da7e
AM
13128 && s->output_section != bfd_abs_section_ptr
13129 && !bfd_set_section_contents (output_bfd, s->output_section,
13130 s->contents, s->output_offset,
eea6121a 13131 s->size))
e717da7e
AM
13132 return FALSE;
13133 }
f6c52c13 13134
b34976b6 13135 return TRUE;
5bd4f169
AM
13136}
13137
5bd4f169 13138#include "elf64-target.h"
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