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* elf64-ppc.c (ppc64_elf_edit_opd): Support 16 byte long .opd
[thirdparty/binutils-gdb.git] / bfd / elf64-ppc.c
CommitLineData
5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
b2a8e766
AM		 2 Copyright 1999, 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation, Inc.
5bd4f169
AM		 4 Written by Linus Nordberg, Swox AB <info@swox.com>,
5 based on elf32-ppc.c by Ian Lance Taylor.
d37c89e5 6 Largely rewritten by Alan Modra <amodra@bigpond.net.au>
5bd4f169 7
ae9a127f 8 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 9
ae9a127f
NC		 10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
5bd4f169 14
ae9a127f
NC		 15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
5bd4f169 19
4ce794b7
AM		 20 You should have received a copy of the GNU General Public License along
21 with this program; if not, write to the Free Software Foundation, Inc.,
22 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
5bd4f169 23
4ce794b7
AM		 24/* The 64-bit PowerPC ELF ABI may be found at
25 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
26 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
5bd4f169
AM		 27
28#include "bfd.h"
29#include "sysdep.h"
30#include "bfdlink.h"
31#include "libbfd.h"
32#include "elf-bfd.h"
04c9666a 33#include "elf/ppc64.h"
5d1634d7 34#include "elf64-ppc.h"
5bd4f169 35
805fc799 36static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
2441e016
AM		 38static bfd_reloc_status_type ppc64_elf_branch_reloc
39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 40static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 42static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 44static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 46static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 48static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 50static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 52static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 53 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
2441e016
AM		 54static bfd_vma opd_entry_value
55 (asection *, bfd_vma, asection **, bfd_vma *);
5bd4f169 56
ad8e1ba5
AM		 57#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
58#define TARGET_LITTLE_NAME "elf64-powerpcle"
59#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
60#define TARGET_BIG_NAME "elf64-powerpc"
61#define ELF_ARCH bfd_arch_powerpc
62#define ELF_MACHINE_CODE EM_PPC64
63#define ELF_MAXPAGESIZE 0x10000
64#define elf_info_to_howto ppc64_elf_info_to_howto
65
66#define elf_backend_want_got_sym 0
67#define elf_backend_want_plt_sym 0
68#define elf_backend_plt_alignment 3
69#define elf_backend_plt_not_loaded 1
70#define elf_backend_got_symbol_offset 0
71#define elf_backend_got_header_size 8
ad8e1ba5
AM		 72#define elf_backend_can_gc_sections 1
73#define elf_backend_can_refcount 1
74#define elf_backend_rela_normal 1
75
e717da7e 76#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5
AM		 77#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
78#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
79#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
80#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
81#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
90e3cdf2 82#define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
ad8e1ba5
AM		 83
84#define elf_backend_object_p ppc64_elf_object_p
d37c89e5
AM		 85#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
86#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
ad8e1ba5
AM		 87#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
88#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
555cd476 89#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
8387904d
AM		 90#define elf_backend_check_directives ppc64_elf_check_directives
91#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
ad8e1ba5
AM		 92#define elf_backend_check_relocs ppc64_elf_check_relocs
93#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
94#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
95#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
96#define elf_backend_hide_symbol ppc64_elf_hide_symbol
97#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
98#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
99#define elf_backend_relocate_section ppc64_elf_relocate_section
100#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
101#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
102#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
754021d0 103#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
2f89ff8d 104#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 105
5bd4f169
AM		 106/* The name of the dynamic interpreter. This is put in the .interp
107 section. */
108#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
109
110/* The size in bytes of an entry in the procedure linkage table. */
111#define PLT_ENTRY_SIZE 24
112
113/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 114#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM		 115
116/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 117#define TOC_BASE_OFF 0x8000
118
119/* Offset of tp and dtp pointers from start of TLS block. */
120#define TP_OFFSET 0x7000
121#define DTP_OFFSET 0x8000
5bd4f169 122
ad8e1ba5
AM		 123/* .plt call stub instructions. The normal stub is like this, but
124 sometimes the .plt entry crosses a 64k boundary and we need to
125 insert an addis to adjust r12. */
126#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM		 127#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
128#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
129#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
130#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
131#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
132 /* ld %r11,xxx+16@l(%r12) */
133#define BCTR 0x4e800420 /* bctr */
134
5d1634d7 135
ad8e1ba5
AM		 136#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
137#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
138
139#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
140
141/* glink call stub instructions. We enter with the index in R0, and the
142 address of glink entry in CTR. From that, we can calculate PLT0. */
143#define GLINK_CALL_STUB_SIZE (16*4)
144#define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
145#define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
146#define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
147#define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
148#define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
149#define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
150#define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
151 /* sub %r12,%r12,%r11 */
152#define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
153#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
154 /* ld %r11,xxx@l(%r12) */
155#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
156 /* ld %r2,8(%r12) */
157 /* mtctr %r11 */
158 /* ld %r11,16(%r12) */
159 /* bctr */
5d1634d7
AM		 160
161/* Pad with this. */
162#define NOP 0x60000000
163
721956f4
AM		 164/* Some other nops. */
165#define CROR_151515 0x4def7b82
166#define CROR_313131 0x4ffffb82
167
cedb70c5 168/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 169#define LI_R0_0 0x38000000 /* li %r0,0 */
170#define B_DOT 0x48000000 /* b . */
171
172/* After that, we need two instructions to load the index, followed by
173 a branch. */
174#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 175#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 176
82bd7b59
AM		 177/* Instructions to save and restore floating point regs. */
178#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
179#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
180#define BLR 0x4e800020 /* blr */
181
41bd81ab
AM		 182/* Since .opd is an array of descriptors and each entry will end up
183 with identical R_PPC64_RELATIVE relocs, there is really no need to
184 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 185 relocate .opd without reloc entries. */
41bd81ab
AM		 186#ifndef NO_OPD_RELOCS
187#define NO_OPD_RELOCS 0
188#endif
5bd4f169 189\f
f5e87a1d 190#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 191
5bd4f169 192/* Relocation HOWTO's. */
04c9666a 193static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 194
195static reloc_howto_type ppc64_elf_howto_raw[] = {
196 /* This reloc does nothing. */
197 HOWTO (R_PPC64_NONE, /* type */
198 0, /* rightshift */
411e1bfb
AM		 199 2, /* size (0 = byte, 1 = short, 2 = long) */
200 32, /* bitsize */
b34976b6 201 FALSE, /* pc_relative */
5bd4f169 202 0, /* bitpos */
f5e87a1d 203 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 204 bfd_elf_generic_reloc, /* special_function */
205 "R_PPC64_NONE", /* name */
b34976b6 206 FALSE, /* partial_inplace */
d006db6c 207 0, /* src_mask */
5bd4f169 208 0, /* dst_mask */
b34976b6 209 FALSE), /* pcrel_offset */
5bd4f169
AM		 210
211 /* A standard 32 bit relocation. */
212 HOWTO (R_PPC64_ADDR32, /* type */
213 0, /* rightshift */
214 2, /* size (0 = byte, 1 = short, 2 = long) */
215 32, /* bitsize */
b34976b6 216 FALSE, /* pc_relative */
5bd4f169
AM		 217 0, /* bitpos */
218 complain_overflow_bitfield, /* complain_on_overflow */
219 bfd_elf_generic_reloc, /* special_function */
220 "R_PPC64_ADDR32", /* name */
b34976b6 221 FALSE, /* partial_inplace */
5bd4f169
AM		 222 0, /* src_mask */
223 0xffffffff, /* dst_mask */
b34976b6 224 FALSE), /* pcrel_offset */
5bd4f169
AM		 225
226 /* An absolute 26 bit branch; the lower two bits must be zero.
227 FIXME: we don't check that, we just clear them. */
228 HOWTO (R_PPC64_ADDR24, /* type */
229 0, /* rightshift */
230 2, /* size (0 = byte, 1 = short, 2 = long) */
231 26, /* bitsize */
b34976b6 232 FALSE, /* pc_relative */
5bd4f169
AM		 233 0, /* bitpos */
234 complain_overflow_bitfield, /* complain_on_overflow */
235 bfd_elf_generic_reloc, /* special_function */
236 "R_PPC64_ADDR24", /* name */
b34976b6 237 FALSE, /* partial_inplace */
d006db6c 238 0, /* src_mask */
f5e87a1d 239 0x03fffffc, /* dst_mask */
b34976b6 240 FALSE), /* pcrel_offset */
5bd4f169
AM		 241
242 /* A standard 16 bit relocation. */
243 HOWTO (R_PPC64_ADDR16, /* type */
244 0, /* rightshift */
245 1, /* size (0 = byte, 1 = short, 2 = long) */
246 16, /* bitsize */
b34976b6 247 FALSE, /* pc_relative */
5bd4f169
AM		 248 0, /* bitpos */
249 complain_overflow_bitfield, /* complain_on_overflow */
250 bfd_elf_generic_reloc, /* special_function */
251 "R_PPC64_ADDR16", /* name */
b34976b6 252 FALSE, /* partial_inplace */
5bd4f169
AM		 253 0, /* src_mask */
254 0xffff, /* dst_mask */
b34976b6 255 FALSE), /* pcrel_offset */
5bd4f169
AM		 256
257 /* A 16 bit relocation without overflow. */
258 HOWTO (R_PPC64_ADDR16_LO, /* type */
259 0, /* rightshift */
260 1, /* size (0 = byte, 1 = short, 2 = long) */
261 16, /* bitsize */
b34976b6 262 FALSE, /* pc_relative */
5bd4f169
AM		 263 0, /* bitpos */
264 complain_overflow_dont,/* complain_on_overflow */
265 bfd_elf_generic_reloc, /* special_function */
266 "R_PPC64_ADDR16_LO", /* name */
b34976b6 267 FALSE, /* partial_inplace */
5bd4f169
AM		 268 0, /* src_mask */
269 0xffff, /* dst_mask */
b34976b6 270 FALSE), /* pcrel_offset */
5bd4f169
AM		 271
272 /* Bits 16-31 of an address. */
273 HOWTO (R_PPC64_ADDR16_HI, /* type */
274 16, /* rightshift */
275 1, /* size (0 = byte, 1 = short, 2 = long) */
276 16, /* bitsize */
b34976b6 277 FALSE, /* pc_relative */
5bd4f169
AM		 278 0, /* bitpos */
279 complain_overflow_dont, /* complain_on_overflow */
280 bfd_elf_generic_reloc, /* special_function */
281 "R_PPC64_ADDR16_HI", /* name */
b34976b6 282 FALSE, /* partial_inplace */
5bd4f169
AM		 283 0, /* src_mask */
284 0xffff, /* dst_mask */
b34976b6 285 FALSE), /* pcrel_offset */
5bd4f169
AM		 286
287 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
288 bits, treated as a signed number, is negative. */
289 HOWTO (R_PPC64_ADDR16_HA, /* type */
290 16, /* rightshift */
291 1, /* size (0 = byte, 1 = short, 2 = long) */
292 16, /* bitsize */
b34976b6 293 FALSE, /* pc_relative */
5bd4f169
AM		 294 0, /* bitpos */
295 complain_overflow_dont, /* complain_on_overflow */
805fc799 296 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 297 "R_PPC64_ADDR16_HA", /* name */
b34976b6 298 FALSE, /* partial_inplace */
5bd4f169
AM		 299 0, /* src_mask */
300 0xffff, /* dst_mask */
b34976b6 301 FALSE), /* pcrel_offset */
5bd4f169
AM		 302
303 /* An absolute 16 bit branch; the lower two bits must be zero.
304 FIXME: we don't check that, we just clear them. */
305 HOWTO (R_PPC64_ADDR14, /* type */
306 0, /* rightshift */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
308 16, /* bitsize */
b34976b6 309 FALSE, /* pc_relative */
5bd4f169
AM		 310 0, /* bitpos */
311 complain_overflow_bitfield, /* complain_on_overflow */
2441e016 312 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 313 "R_PPC64_ADDR14", /* name */
b34976b6 314 FALSE, /* partial_inplace */
d006db6c 315 0, /* src_mask */
f5e87a1d 316 0x0000fffc, /* dst_mask */
b34976b6 317 FALSE), /* pcrel_offset */
5bd4f169
AM		 318
319 /* An absolute 16 bit branch, for which bit 10 should be set to
320 indicate that the branch is expected to be taken. The lower two
321 bits must be zero. */
322 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
323 0, /* rightshift */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
325 16, /* bitsize */
b34976b6 326 FALSE, /* pc_relative */
5bd4f169
AM		 327 0, /* bitpos */
328 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 329 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 330 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 331 FALSE, /* partial_inplace */
d006db6c 332 0, /* src_mask */
f5e87a1d 333 0x0000fffc, /* dst_mask */
b34976b6 334 FALSE), /* pcrel_offset */
5bd4f169
AM		 335
336 /* An absolute 16 bit branch, for which bit 10 should be set to
337 indicate that the branch is not expected to be taken. The lower
338 two bits must be zero. */
339 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
340 0, /* rightshift */
341 2, /* size (0 = byte, 1 = short, 2 = long) */
342 16, /* bitsize */
b34976b6 343 FALSE, /* pc_relative */
5bd4f169
AM		 344 0, /* bitpos */
345 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 346 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 347 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 348 FALSE, /* partial_inplace */
d006db6c 349 0, /* src_mask */
f5e87a1d 350 0x0000fffc, /* dst_mask */
b34976b6 351 FALSE), /* pcrel_offset */
5bd4f169
AM		 352
353 /* A relative 26 bit branch; the lower two bits must be zero. */
354 HOWTO (R_PPC64_REL24, /* type */
355 0, /* rightshift */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
357 26, /* bitsize */
b34976b6 358 TRUE, /* pc_relative */
5bd4f169
AM		 359 0, /* bitpos */
360 complain_overflow_signed, /* complain_on_overflow */
2441e016 361 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 362 "R_PPC64_REL24", /* name */
b34976b6 363 FALSE, /* partial_inplace */
d006db6c 364 0, /* src_mask */
f5e87a1d 365 0x03fffffc, /* dst_mask */
b34976b6 366 TRUE), /* pcrel_offset */
5bd4f169
AM		 367
368 /* A relative 16 bit branch; the lower two bits must be zero. */
369 HOWTO (R_PPC64_REL14, /* type */
370 0, /* rightshift */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
372 16, /* bitsize */
b34976b6 373 TRUE, /* pc_relative */
5bd4f169
AM		 374 0, /* bitpos */
375 complain_overflow_signed, /* complain_on_overflow */
2441e016 376 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 377 "R_PPC64_REL14", /* name */
b34976b6 378 FALSE, /* partial_inplace */
d006db6c 379 0, /* src_mask */
f5e87a1d 380 0x0000fffc, /* dst_mask */
b34976b6 381 TRUE), /* pcrel_offset */
5bd4f169
AM		 382
383 /* A relative 16 bit branch. Bit 10 should be set to indicate that
384 the branch is expected to be taken. The lower two bits must be
385 zero. */
386 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 16, /* bitsize */
b34976b6 390 TRUE, /* pc_relative */
5bd4f169
AM		 391 0, /* bitpos */
392 complain_overflow_signed, /* complain_on_overflow */
805fc799 393 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 394 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 395 FALSE, /* partial_inplace */
d006db6c 396 0, /* src_mask */
f5e87a1d 397 0x0000fffc, /* dst_mask */
b34976b6 398 TRUE), /* pcrel_offset */
5bd4f169
AM		 399
400 /* A relative 16 bit branch. Bit 10 should be set to indicate that
401 the branch is not expected to be taken. The lower two bits must
402 be zero. */
403 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
404 0, /* rightshift */
405 2, /* size (0 = byte, 1 = short, 2 = long) */
406 16, /* bitsize */
b34976b6 407 TRUE, /* pc_relative */
5bd4f169
AM		 408 0, /* bitpos */
409 complain_overflow_signed, /* complain_on_overflow */
805fc799 410 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 411 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 412 FALSE, /* partial_inplace */
d006db6c 413 0, /* src_mask */
f5e87a1d 414 0x0000fffc, /* dst_mask */
b34976b6 415 TRUE), /* pcrel_offset */
5bd4f169
AM		 416
417 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
418 symbol. */
419 HOWTO (R_PPC64_GOT16, /* type */
420 0, /* rightshift */
421 1, /* size (0 = byte, 1 = short, 2 = long) */
422 16, /* bitsize */
b34976b6 423 FALSE, /* pc_relative */
5bd4f169
AM		 424 0, /* bitpos */
425 complain_overflow_signed, /* complain_on_overflow */
805fc799 426 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 427 "R_PPC64_GOT16", /* name */
b34976b6 428 FALSE, /* partial_inplace */
5bd4f169
AM		 429 0, /* src_mask */
430 0xffff, /* dst_mask */
b34976b6 431 FALSE), /* pcrel_offset */
5bd4f169
AM		 432
433 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
434 the symbol. */
435 HOWTO (R_PPC64_GOT16_LO, /* type */
436 0, /* rightshift */
437 1, /* size (0 = byte, 1 = short, 2 = long) */
438 16, /* bitsize */
b34976b6 439 FALSE, /* pc_relative */
5bd4f169
AM		 440 0, /* bitpos */
441 complain_overflow_dont, /* complain_on_overflow */
805fc799 442 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 443 "R_PPC64_GOT16_LO", /* name */
b34976b6 444 FALSE, /* partial_inplace */
5bd4f169
AM		 445 0, /* src_mask */
446 0xffff, /* dst_mask */
b34976b6 447 FALSE), /* pcrel_offset */
5bd4f169
AM		 448
449 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
450 the symbol. */
451 HOWTO (R_PPC64_GOT16_HI, /* type */
452 16, /* rightshift */
453 1, /* size (0 = byte, 1 = short, 2 = long) */
454 16, /* bitsize */
b34976b6 455 FALSE, /* pc_relative */
5bd4f169
AM		 456 0, /* bitpos */
457 complain_overflow_dont,/* complain_on_overflow */
805fc799 458 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 459 "R_PPC64_GOT16_HI", /* name */
b34976b6 460 FALSE, /* partial_inplace */
5bd4f169
AM		 461 0, /* src_mask */
462 0xffff, /* dst_mask */
b34976b6 463 FALSE), /* pcrel_offset */
5bd4f169
AM		 464
465 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
466 the symbol. */
467 HOWTO (R_PPC64_GOT16_HA, /* type */
468 16, /* rightshift */
469 1, /* size (0 = byte, 1 = short, 2 = long) */
470 16, /* bitsize */
b34976b6 471 FALSE, /* pc_relative */
5bd4f169
AM		 472 0, /* bitpos */
473 complain_overflow_dont,/* complain_on_overflow */
805fc799 474 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 475 "R_PPC64_GOT16_HA", /* name */
b34976b6 476 FALSE, /* partial_inplace */
5bd4f169
AM		 477 0, /* src_mask */
478 0xffff, /* dst_mask */
b34976b6 479 FALSE), /* pcrel_offset */
5bd4f169
AM		 480
481 /* This is used only by the dynamic linker. The symbol should exist
482 both in the object being run and in some shared library. The
483 dynamic linker copies the data addressed by the symbol from the
484 shared library into the object, because the object being
485 run has to have the data at some particular address. */
486 HOWTO (R_PPC64_COPY, /* type */
487 0, /* rightshift */
f5e87a1d
AM		 488 0, /* this one is variable size */
489 0, /* bitsize */
b34976b6 490 FALSE, /* pc_relative */
5bd4f169 491 0, /* bitpos */
f5e87a1d
AM		 492 complain_overflow_dont, /* complain_on_overflow */
493 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 494 "R_PPC64_COPY", /* name */
b34976b6 495 FALSE, /* partial_inplace */
5bd4f169
AM		 496 0, /* src_mask */
497 0, /* dst_mask */
b34976b6 498 FALSE), /* pcrel_offset */
5bd4f169
AM		 499
500 /* Like R_PPC64_ADDR64, but used when setting global offset table
501 entries. */
502 HOWTO (R_PPC64_GLOB_DAT, /* type */
503 0, /* rightshift */
504 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
505 64, /* bitsize */
b34976b6 506 FALSE, /* pc_relative */
5bd4f169
AM		 507 0, /* bitpos */
508 complain_overflow_dont, /* complain_on_overflow */
805fc799 509 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 510 "R_PPC64_GLOB_DAT", /* name */
b34976b6 511 FALSE, /* partial_inplace */
5bd4f169 512 0, /* src_mask */
f5e87a1d 513 ONES (64), /* dst_mask */
b34976b6 514 FALSE), /* pcrel_offset */
5bd4f169
AM		 515
516 /* Created by the link editor. Marks a procedure linkage table
517 entry for a symbol. */
518 HOWTO (R_PPC64_JMP_SLOT, /* type */
519 0, /* rightshift */
520 0, /* size (0 = byte, 1 = short, 2 = long) */
521 0, /* bitsize */
b34976b6 522 FALSE, /* pc_relative */
5bd4f169
AM		 523 0, /* bitpos */
524 complain_overflow_dont, /* complain_on_overflow */
805fc799 525 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 526 "R_PPC64_JMP_SLOT", /* name */
b34976b6 527 FALSE, /* partial_inplace */
5bd4f169
AM		 528 0, /* src_mask */
529 0, /* dst_mask */
b34976b6 530 FALSE), /* pcrel_offset */
5bd4f169
AM		 531
532 /* Used only by the dynamic linker. When the object is run, this
533 doubleword64 is set to the load address of the object, plus the
534 addend. */
535 HOWTO (R_PPC64_RELATIVE, /* type */
536 0, /* rightshift */
537 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
538 64, /* bitsize */
b34976b6 539 FALSE, /* pc_relative */
5bd4f169
AM		 540 0, /* bitpos */
541 complain_overflow_dont, /* complain_on_overflow */
542 bfd_elf_generic_reloc, /* special_function */
543 "R_PPC64_RELATIVE", /* name */
b34976b6 544 FALSE, /* partial_inplace */
5bd4f169 545 0, /* src_mask */
f5e87a1d 546 ONES (64), /* dst_mask */
b34976b6 547 FALSE), /* pcrel_offset */
5bd4f169
AM		 548
549 /* Like R_PPC64_ADDR32, but may be unaligned. */
550 HOWTO (R_PPC64_UADDR32, /* type */
551 0, /* rightshift */
552 2, /* size (0 = byte, 1 = short, 2 = long) */
553 32, /* bitsize */
b34976b6 554 FALSE, /* pc_relative */
5bd4f169
AM		 555 0, /* bitpos */
556 complain_overflow_bitfield, /* complain_on_overflow */
557 bfd_elf_generic_reloc, /* special_function */
558 "R_PPC64_UADDR32", /* name */
b34976b6 559 FALSE, /* partial_inplace */
5bd4f169
AM		 560 0, /* src_mask */
561 0xffffffff, /* dst_mask */
b34976b6 562 FALSE), /* pcrel_offset */
5bd4f169
AM		 563
564 /* Like R_PPC64_ADDR16, but may be unaligned. */
565 HOWTO (R_PPC64_UADDR16, /* type */
566 0, /* rightshift */
567 1, /* size (0 = byte, 1 = short, 2 = long) */
568 16, /* bitsize */
b34976b6 569 FALSE, /* pc_relative */
5bd4f169
AM		 570 0, /* bitpos */
571 complain_overflow_bitfield, /* complain_on_overflow */
572 bfd_elf_generic_reloc, /* special_function */
573 "R_PPC64_UADDR16", /* name */
b34976b6 574 FALSE, /* partial_inplace */
5bd4f169
AM		 575 0, /* src_mask */
576 0xffff, /* dst_mask */
b34976b6 577 FALSE), /* pcrel_offset */
5bd4f169
AM		 578
579 /* 32-bit PC relative. */
580 HOWTO (R_PPC64_REL32, /* type */
581 0, /* rightshift */
582 2, /* size (0 = byte, 1 = short, 2 = long) */
583 32, /* bitsize */
b34976b6 584 TRUE, /* pc_relative */
5bd4f169 585 0, /* bitpos */
cedb70c5 586 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM		 587 complain_overflow_signed, /* complain_on_overflow */
588 bfd_elf_generic_reloc, /* special_function */
589 "R_PPC64_REL32", /* name */
b34976b6 590 FALSE, /* partial_inplace */
5bd4f169
AM		 591 0, /* src_mask */
592 0xffffffff, /* dst_mask */
b34976b6 593 TRUE), /* pcrel_offset */
5bd4f169 594
10ed1bba 595 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 596 HOWTO (R_PPC64_PLT32, /* type */
597 0, /* rightshift */
598 2, /* size (0 = byte, 1 = short, 2 = long) */
599 32, /* bitsize */
b34976b6 600 FALSE, /* pc_relative */
5bd4f169
AM		 601 0, /* bitpos */
602 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 603 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 604 "R_PPC64_PLT32", /* name */
b34976b6 605 FALSE, /* partial_inplace */
5bd4f169 606 0, /* src_mask */
f5e87a1d 607 0xffffffff, /* dst_mask */
b34976b6 608 FALSE), /* pcrel_offset */
5bd4f169
AM		 609
610 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
611 FIXME: R_PPC64_PLTREL32 not supported. */
612 HOWTO (R_PPC64_PLTREL32, /* type */
613 0, /* rightshift */
614 2, /* size (0 = byte, 1 = short, 2 = long) */
615 32, /* bitsize */
b34976b6 616 TRUE, /* pc_relative */
5bd4f169
AM		 617 0, /* bitpos */
618 complain_overflow_signed, /* complain_on_overflow */
619 bfd_elf_generic_reloc, /* special_function */
620 "R_PPC64_PLTREL32", /* name */
b34976b6 621 FALSE, /* partial_inplace */
5bd4f169 622 0, /* src_mask */
f5e87a1d 623 0xffffffff, /* dst_mask */
b34976b6 624 TRUE), /* pcrel_offset */
5bd4f169
AM		 625
626 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
627 the symbol. */
628 HOWTO (R_PPC64_PLT16_LO, /* type */
629 0, /* rightshift */
630 1, /* size (0 = byte, 1 = short, 2 = long) */
631 16, /* bitsize */
b34976b6 632 FALSE, /* pc_relative */
5bd4f169
AM		 633 0, /* bitpos */
634 complain_overflow_dont, /* complain_on_overflow */
805fc799 635 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 636 "R_PPC64_PLT16_LO", /* name */
b34976b6 637 FALSE, /* partial_inplace */
5bd4f169
AM		 638 0, /* src_mask */
639 0xffff, /* dst_mask */
b34976b6 640 FALSE), /* pcrel_offset */
5bd4f169
AM		 641
642 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
643 the symbol. */
644 HOWTO (R_PPC64_PLT16_HI, /* type */
645 16, /* rightshift */
646 1, /* size (0 = byte, 1 = short, 2 = long) */
647 16, /* bitsize */
b34976b6 648 FALSE, /* pc_relative */
5bd4f169
AM		 649 0, /* bitpos */
650 complain_overflow_dont, /* complain_on_overflow */
805fc799 651 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 652 "R_PPC64_PLT16_HI", /* name */
b34976b6 653 FALSE, /* partial_inplace */
5bd4f169
AM		 654 0, /* src_mask */
655 0xffff, /* dst_mask */
b34976b6 656 FALSE), /* pcrel_offset */
5bd4f169
AM		 657
658 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
659 the symbol. */
660 HOWTO (R_PPC64_PLT16_HA, /* type */
661 16, /* rightshift */
662 1, /* size (0 = byte, 1 = short, 2 = long) */
663 16, /* bitsize */
b34976b6 664 FALSE, /* pc_relative */
5bd4f169
AM		 665 0, /* bitpos */
666 complain_overflow_dont, /* complain_on_overflow */
805fc799 667 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 668 "R_PPC64_PLT16_HA", /* name */
b34976b6 669 FALSE, /* partial_inplace */
5bd4f169
AM		 670 0, /* src_mask */
671 0xffff, /* dst_mask */
b34976b6 672 FALSE), /* pcrel_offset */
5bd4f169 673
c061c2d8 674 /* 16-bit section relative relocation. */
5bd4f169
AM		 675 HOWTO (R_PPC64_SECTOFF, /* type */
676 0, /* rightshift */
c061c2d8
AM		 677 1, /* size (0 = byte, 1 = short, 2 = long) */
678 16, /* bitsize */
b34976b6 679 FALSE, /* pc_relative */
5bd4f169
AM		 680 0, /* bitpos */
681 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 682 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 683 "R_PPC64_SECTOFF", /* name */
b34976b6 684 FALSE, /* partial_inplace */
5bd4f169 685 0, /* src_mask */
c061c2d8 686 0xffff, /* dst_mask */
b34976b6 687 FALSE), /* pcrel_offset */
5bd4f169 688
c061c2d8 689 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 690 HOWTO (R_PPC64_SECTOFF_LO, /* type */
691 0, /* rightshift */
692 1, /* size (0 = byte, 1 = short, 2 = long) */
693 16, /* bitsize */
b34976b6 694 FALSE, /* pc_relative */
5bd4f169
AM		 695 0, /* bitpos */
696 complain_overflow_dont, /* complain_on_overflow */
805fc799 697 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 698 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 699 FALSE, /* partial_inplace */
5bd4f169
AM		 700 0, /* src_mask */
701 0xffff, /* dst_mask */
b34976b6 702 FALSE), /* pcrel_offset */
5bd4f169
AM		 703
704 /* 16-bit upper half section relative relocation. */
705 HOWTO (R_PPC64_SECTOFF_HI, /* type */
706 16, /* rightshift */
707 1, /* size (0 = byte, 1 = short, 2 = long) */
708 16, /* bitsize */
b34976b6 709 FALSE, /* pc_relative */
5bd4f169
AM		 710 0, /* bitpos */
711 complain_overflow_dont, /* complain_on_overflow */
805fc799 712 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 713 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 714 FALSE, /* partial_inplace */
5bd4f169
AM		 715 0, /* src_mask */
716 0xffff, /* dst_mask */
b34976b6 717 FALSE), /* pcrel_offset */
5bd4f169
AM		 718
719 /* 16-bit upper half adjusted section relative relocation. */
720 HOWTO (R_PPC64_SECTOFF_HA, /* type */
721 16, /* rightshift */
722 1, /* size (0 = byte, 1 = short, 2 = long) */
723 16, /* bitsize */
b34976b6 724 FALSE, /* pc_relative */
5bd4f169
AM		 725 0, /* bitpos */
726 complain_overflow_dont, /* complain_on_overflow */
805fc799 727 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 728 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 729 FALSE, /* partial_inplace */
5bd4f169
AM		 730 0, /* src_mask */
731 0xffff, /* dst_mask */
b34976b6 732 FALSE), /* pcrel_offset */
5bd4f169 733
04c9666a
AM		 734 /* Like R_PPC64_REL24 without touching the two least significant bits. */
735 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 736 2, /* rightshift */
737 2, /* size (0 = byte, 1 = short, 2 = long) */
738 30, /* bitsize */
b34976b6 739 TRUE, /* pc_relative */
5bd4f169
AM		 740 0, /* bitpos */
741 complain_overflow_dont, /* complain_on_overflow */
742 bfd_elf_generic_reloc, /* special_function */
04c9666a 743 "R_PPC64_REL30", /* name */
b34976b6 744 FALSE, /* partial_inplace */
d006db6c 745 0, /* src_mask */
5bd4f169 746 0xfffffffc, /* dst_mask */
b34976b6 747 TRUE), /* pcrel_offset */
5bd4f169
AM		 748
749 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
750
751 /* A standard 64-bit relocation. */
752 HOWTO (R_PPC64_ADDR64, /* type */
753 0, /* rightshift */
754 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
755 64, /* bitsize */
b34976b6 756 FALSE, /* pc_relative */
5bd4f169
AM		 757 0, /* bitpos */
758 complain_overflow_dont, /* complain_on_overflow */
759 bfd_elf_generic_reloc, /* special_function */
760 "R_PPC64_ADDR64", /* name */
b34976b6 761 FALSE, /* partial_inplace */
5bd4f169 762 0, /* src_mask */
f5e87a1d 763 ONES (64), /* dst_mask */
b34976b6 764 FALSE), /* pcrel_offset */
5bd4f169
AM		 765
766 /* The bits 32-47 of an address. */
767 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
768 32, /* rightshift */
769 1, /* size (0 = byte, 1 = short, 2 = long) */
770 16, /* bitsize */
b34976b6 771 FALSE, /* pc_relative */
5bd4f169
AM		 772 0, /* bitpos */
773 complain_overflow_dont, /* complain_on_overflow */
774 bfd_elf_generic_reloc, /* special_function */
775 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 776 FALSE, /* partial_inplace */
5bd4f169
AM		 777 0, /* src_mask */
778 0xffff, /* dst_mask */
b34976b6 779 FALSE), /* pcrel_offset */
5bd4f169
AM		 780
781 /* The bits 32-47 of an address, plus 1 if the contents of the low
782 16 bits, treated as a signed number, is negative. */
783 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
784 32, /* rightshift */
785 1, /* size (0 = byte, 1 = short, 2 = long) */
786 16, /* bitsize */
b34976b6 787 FALSE, /* pc_relative */
5bd4f169
AM		 788 0, /* bitpos */
789 complain_overflow_dont, /* complain_on_overflow */
805fc799 790 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 791 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 792 FALSE, /* partial_inplace */
5bd4f169
AM		 793 0, /* src_mask */
794 0xffff, /* dst_mask */
b34976b6 795 FALSE), /* pcrel_offset */
5bd4f169
AM		 796
797 /* The bits 48-63 of an address. */
798 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
799 48, /* rightshift */
800 1, /* size (0 = byte, 1 = short, 2 = long) */
801 16, /* bitsize */
b34976b6 802 FALSE, /* pc_relative */
5bd4f169
AM		 803 0, /* bitpos */
804 complain_overflow_dont, /* complain_on_overflow */
805 bfd_elf_generic_reloc, /* special_function */
806 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 807 FALSE, /* partial_inplace */
5bd4f169
AM		 808 0, /* src_mask */
809 0xffff, /* dst_mask */
b34976b6 810 FALSE), /* pcrel_offset */
5bd4f169
AM		 811
812 /* The bits 48-63 of an address, plus 1 if the contents of the low
813 16 bits, treated as a signed number, is negative. */
814 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
815 48, /* rightshift */
816 1, /* size (0 = byte, 1 = short, 2 = long) */
817 16, /* bitsize */
b34976b6 818 FALSE, /* pc_relative */
5bd4f169
AM		 819 0, /* bitpos */
820 complain_overflow_dont, /* complain_on_overflow */
805fc799 821 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 822 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 823 FALSE, /* partial_inplace */
5bd4f169
AM		 824 0, /* src_mask */
825 0xffff, /* dst_mask */
b34976b6 826 FALSE), /* pcrel_offset */
5bd4f169
AM		 827
828 /* Like ADDR64, but may be unaligned. */
829 HOWTO (R_PPC64_UADDR64, /* type */
830 0, /* rightshift */
831 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
832 64, /* bitsize */
b34976b6 833 FALSE, /* pc_relative */
5bd4f169
AM		 834 0, /* bitpos */
835 complain_overflow_dont, /* complain_on_overflow */
836 bfd_elf_generic_reloc, /* special_function */
837 "R_PPC64_UADDR64", /* name */
b34976b6 838 FALSE, /* partial_inplace */
5bd4f169 839 0, /* src_mask */
f5e87a1d 840 ONES (64), /* dst_mask */
b34976b6 841 FALSE), /* pcrel_offset */
5bd4f169
AM		 842
843 /* 64-bit relative relocation. */
844 HOWTO (R_PPC64_REL64, /* type */
845 0, /* rightshift */
846 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
847 64, /* bitsize */
b34976b6 848 TRUE, /* pc_relative */
5bd4f169
AM		 849 0, /* bitpos */
850 complain_overflow_dont, /* complain_on_overflow */
851 bfd_elf_generic_reloc, /* special_function */
852 "R_PPC64_REL64", /* name */
b34976b6 853 FALSE, /* partial_inplace */
5bd4f169 854 0, /* src_mask */
f5e87a1d 855 ONES (64), /* dst_mask */
b34976b6 856 TRUE), /* pcrel_offset */
5bd4f169 857
cedb70c5 858 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 859 HOWTO (R_PPC64_PLT64, /* type */
860 0, /* rightshift */
861 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
862 64, /* bitsize */
b34976b6 863 FALSE, /* pc_relative */
5bd4f169
AM		 864 0, /* bitpos */
865 complain_overflow_dont, /* complain_on_overflow */
805fc799 866 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 867 "R_PPC64_PLT64", /* name */
b34976b6 868 FALSE, /* partial_inplace */
5bd4f169 869 0, /* src_mask */
f5e87a1d 870 ONES (64), /* dst_mask */
b34976b6 871 FALSE), /* pcrel_offset */
5bd4f169
AM		 872
873 /* 64-bit PC relative relocation to the symbol's procedure linkage
874 table. */
875 /* FIXME: R_PPC64_PLTREL64 not supported. */
876 HOWTO (R_PPC64_PLTREL64, /* type */
877 0, /* rightshift */
878 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
879 64, /* bitsize */
b34976b6 880 TRUE, /* pc_relative */
5bd4f169
AM		 881 0, /* bitpos */
882 complain_overflow_dont, /* complain_on_overflow */
805fc799 883 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 884 "R_PPC64_PLTREL64", /* name */
b34976b6 885 FALSE, /* partial_inplace */
5bd4f169 886 0, /* src_mask */
f5e87a1d 887 ONES (64), /* dst_mask */
b34976b6 888 TRUE), /* pcrel_offset */
5bd4f169
AM		 889
890 /* 16 bit TOC-relative relocation. */
891
892 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
893 HOWTO (R_PPC64_TOC16, /* type */
894 0, /* rightshift */
895 1, /* size (0 = byte, 1 = short, 2 = long) */
896 16, /* bitsize */
b34976b6 897 FALSE, /* pc_relative */
5bd4f169
AM		 898 0, /* bitpos */
899 complain_overflow_signed, /* complain_on_overflow */
805fc799 900 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 901 "R_PPC64_TOC16", /* name */
b34976b6 902 FALSE, /* partial_inplace */
5bd4f169
AM		 903 0, /* src_mask */
904 0xffff, /* dst_mask */
b34976b6 905 FALSE), /* pcrel_offset */
5bd4f169
AM		 906
907 /* 16 bit TOC-relative relocation without overflow. */
908
909 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
910 HOWTO (R_PPC64_TOC16_LO, /* type */
911 0, /* rightshift */
912 1, /* size (0 = byte, 1 = short, 2 = long) */
913 16, /* bitsize */
b34976b6 914 FALSE, /* pc_relative */
5bd4f169
AM		 915 0, /* bitpos */
916 complain_overflow_dont, /* complain_on_overflow */
805fc799 917 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 918 "R_PPC64_TOC16_LO", /* name */
b34976b6 919 FALSE, /* partial_inplace */
5bd4f169
AM		 920 0, /* src_mask */
921 0xffff, /* dst_mask */
b34976b6 922 FALSE), /* pcrel_offset */
5bd4f169
AM		 923
924 /* 16 bit TOC-relative relocation, high 16 bits. */
925
926 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
927 HOWTO (R_PPC64_TOC16_HI, /* type */
928 16, /* rightshift */
929 1, /* size (0 = byte, 1 = short, 2 = long) */
930 16, /* bitsize */
b34976b6 931 FALSE, /* pc_relative */
5bd4f169
AM		 932 0, /* bitpos */
933 complain_overflow_dont, /* complain_on_overflow */
805fc799 934 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 935 "R_PPC64_TOC16_HI", /* name */
b34976b6 936 FALSE, /* partial_inplace */
5bd4f169
AM		 937 0, /* src_mask */
938 0xffff, /* dst_mask */
b34976b6 939 FALSE), /* pcrel_offset */
5bd4f169
AM		 940
941 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
942 contents of the low 16 bits, treated as a signed number, is
943 negative. */
944
945 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
946 HOWTO (R_PPC64_TOC16_HA, /* type */
947 16, /* rightshift */
948 1, /* size (0 = byte, 1 = short, 2 = long) */
949 16, /* bitsize */
b34976b6 950 FALSE, /* pc_relative */
5bd4f169
AM		 951 0, /* bitpos */
952 complain_overflow_dont, /* complain_on_overflow */
805fc799 953 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 954 "R_PPC64_TOC16_HA", /* name */
b34976b6 955 FALSE, /* partial_inplace */
5bd4f169
AM		 956 0, /* src_mask */
957 0xffff, /* dst_mask */
b34976b6 958 FALSE), /* pcrel_offset */
5bd4f169
AM		 959
960 /* 64-bit relocation; insert value of TOC base (.TOC.). */
961
962 /* R_PPC64_TOC 51 doubleword64 .TOC. */
963 HOWTO (R_PPC64_TOC, /* type */
964 0, /* rightshift */
965 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
966 64, /* bitsize */
b34976b6 967 FALSE, /* pc_relative */
5bd4f169
AM		 968 0, /* bitpos */
969 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 970 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 971 "R_PPC64_TOC", /* name */
b34976b6 972 FALSE, /* partial_inplace */
5bd4f169 973 0, /* src_mask */
f5e87a1d 974 ONES (64), /* dst_mask */
b34976b6 975 FALSE), /* pcrel_offset */
5bd4f169
AM		 976
977 /* Like R_PPC64_GOT16, but also informs the link editor that the
978 value to relocate may (!) refer to a PLT entry which the link
979 editor (a) may replace with the symbol value. If the link editor
980 is unable to fully resolve the symbol, it may (b) create a PLT
981 entry and store the address to the new PLT entry in the GOT.
982 This permits lazy resolution of function symbols at run time.
983 The link editor may also skip all of this and just (c) emit a
984 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
985 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
986 HOWTO (R_PPC64_PLTGOT16, /* type */
987 0, /* rightshift */
988 1, /* size (0 = byte, 1 = short, 2 = long) */
989 16, /* bitsize */
b34976b6 990 FALSE, /* pc_relative */
5bd4f169
AM		 991 0, /* bitpos */
992 complain_overflow_signed, /* complain_on_overflow */
805fc799 993 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 994 "R_PPC64_PLTGOT16", /* name */
995 FALSE, /* partial_inplace */
996 0, /* src_mask */
997 0xffff, /* dst_mask */
998 FALSE), /* pcrel_offset */
999
1000 /* Like R_PPC64_PLTGOT16, but without overflow. */
1001 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1002 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1003 0, /* rightshift */
1004 1, /* size (0 = byte, 1 = short, 2 = long) */
1005 16, /* bitsize */
1006 FALSE, /* pc_relative */
1007 0, /* bitpos */
1008 complain_overflow_dont, /* complain_on_overflow */
1009 ppc64_elf_unhandled_reloc, /* special_function */
1010 "R_PPC64_PLTGOT16_LO", /* name */
1011 FALSE, /* partial_inplace */
1012 0, /* src_mask */
1013 0xffff, /* dst_mask */
1014 FALSE), /* pcrel_offset */
1015
1016 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1017 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1018 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1019 16, /* rightshift */
1020 1, /* size (0 = byte, 1 = short, 2 = long) */
1021 16, /* bitsize */
1022 FALSE, /* pc_relative */
1023 0, /* bitpos */
1024 complain_overflow_dont, /* complain_on_overflow */
1025 ppc64_elf_unhandled_reloc, /* special_function */
1026 "R_PPC64_PLTGOT16_HI", /* name */
1027 FALSE, /* partial_inplace */
1028 0, /* src_mask */
1029 0xffff, /* dst_mask */
1030 FALSE), /* pcrel_offset */
1031
1032 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1033 1 if the contents of the low 16 bits, treated as a signed number,
1034 is negative. */
1035 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1036 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1037 16, /* rightshift */
1038 1, /* size (0 = byte, 1 = short, 2 = long) */
1039 16, /* bitsize */
1040 FALSE, /* pc_relative */
1041 0, /* bitpos */
1042 complain_overflow_dont,/* complain_on_overflow */
1043 ppc64_elf_unhandled_reloc, /* special_function */
1044 "R_PPC64_PLTGOT16_HA", /* name */
1045 FALSE, /* partial_inplace */
1046 0, /* src_mask */
1047 0xffff, /* dst_mask */
1048 FALSE), /* pcrel_offset */
1049
1050 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1051 HOWTO (R_PPC64_ADDR16_DS, /* type */
1052 0, /* rightshift */
1053 1, /* size (0 = byte, 1 = short, 2 = long) */
1054 16, /* bitsize */
1055 FALSE, /* pc_relative */
1056 0, /* bitpos */
1057 complain_overflow_bitfield, /* complain_on_overflow */
1058 bfd_elf_generic_reloc, /* special_function */
1059 "R_PPC64_ADDR16_DS", /* name */
1060 FALSE, /* partial_inplace */
1061 0, /* src_mask */
1062 0xfffc, /* dst_mask */
1063 FALSE), /* pcrel_offset */
1064
1065 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1066 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1067 0, /* rightshift */
1068 1, /* size (0 = byte, 1 = short, 2 = long) */
1069 16, /* bitsize */
1070 FALSE, /* pc_relative */
1071 0, /* bitpos */
1072 complain_overflow_dont,/* complain_on_overflow */
1073 bfd_elf_generic_reloc, /* special_function */
1074 "R_PPC64_ADDR16_LO_DS",/* name */
1075 FALSE, /* partial_inplace */
1076 0, /* src_mask */
1077 0xfffc, /* dst_mask */
1078 FALSE), /* pcrel_offset */
1079
1080 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1081 HOWTO (R_PPC64_GOT16_DS, /* type */
1082 0, /* rightshift */
1083 1, /* size (0 = byte, 1 = short, 2 = long) */
1084 16, /* bitsize */
1085 FALSE, /* pc_relative */
1086 0, /* bitpos */
1087 complain_overflow_signed, /* complain_on_overflow */
1088 ppc64_elf_unhandled_reloc, /* special_function */
1089 "R_PPC64_GOT16_DS", /* name */
1090 FALSE, /* partial_inplace */
1091 0, /* src_mask */
1092 0xfffc, /* dst_mask */
1093 FALSE), /* pcrel_offset */
1094
1095 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1096 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1097 0, /* rightshift */
1098 1, /* size (0 = byte, 1 = short, 2 = long) */
1099 16, /* bitsize */
1100 FALSE, /* pc_relative */
1101 0, /* bitpos */
1102 complain_overflow_dont, /* complain_on_overflow */
1103 ppc64_elf_unhandled_reloc, /* special_function */
1104 "R_PPC64_GOT16_LO_DS", /* name */
1105 FALSE, /* partial_inplace */
1106 0, /* src_mask */
1107 0xfffc, /* dst_mask */
1108 FALSE), /* pcrel_offset */
1109
1110 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1111 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1112 0, /* rightshift */
1113 1, /* size (0 = byte, 1 = short, 2 = long) */
1114 16, /* bitsize */
1115 FALSE, /* pc_relative */
1116 0, /* bitpos */
1117 complain_overflow_dont, /* complain_on_overflow */
1118 ppc64_elf_unhandled_reloc, /* special_function */
1119 "R_PPC64_PLT16_LO_DS", /* name */
1120 FALSE, /* partial_inplace */
1121 0, /* src_mask */
1122 0xfffc, /* dst_mask */
1123 FALSE), /* pcrel_offset */
1124
1125 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1126 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1127 0, /* rightshift */
1128 1, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_bitfield, /* complain_on_overflow */
1133 ppc64_elf_sectoff_reloc, /* special_function */
1134 "R_PPC64_SECTOFF_DS", /* name */
1135 FALSE, /* partial_inplace */
1136 0, /* src_mask */
1137 0xfffc, /* dst_mask */
1138 FALSE), /* pcrel_offset */
1139
1140 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1141 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1142 0, /* rightshift */
1143 1, /* size (0 = byte, 1 = short, 2 = long) */
1144 16, /* bitsize */
1145 FALSE, /* pc_relative */
1146 0, /* bitpos */
1147 complain_overflow_dont, /* complain_on_overflow */
1148 ppc64_elf_sectoff_reloc, /* special_function */
1149 "R_PPC64_SECTOFF_LO_DS",/* name */
1150 FALSE, /* partial_inplace */
1151 0, /* src_mask */
1152 0xfffc, /* dst_mask */
1153 FALSE), /* pcrel_offset */
1154
1155 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1156 HOWTO (R_PPC64_TOC16_DS, /* type */
1157 0, /* rightshift */
1158 1, /* size (0 = byte, 1 = short, 2 = long) */
1159 16, /* bitsize */
1160 FALSE, /* pc_relative */
1161 0, /* bitpos */
1162 complain_overflow_signed, /* complain_on_overflow */
1163 ppc64_elf_toc_reloc, /* special_function */
1164 "R_PPC64_TOC16_DS", /* name */
1165 FALSE, /* partial_inplace */
1166 0, /* src_mask */
1167 0xfffc, /* dst_mask */
1168 FALSE), /* pcrel_offset */
1169
1170 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1171 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1172 0, /* rightshift */
1173 1, /* size (0 = byte, 1 = short, 2 = long) */
1174 16, /* bitsize */
1175 FALSE, /* pc_relative */
1176 0, /* bitpos */
1177 complain_overflow_dont, /* complain_on_overflow */
1178 ppc64_elf_toc_reloc, /* special_function */
1179 "R_PPC64_TOC16_LO_DS", /* name */
1180 FALSE, /* partial_inplace */
1181 0, /* src_mask */
1182 0xfffc, /* dst_mask */
1183 FALSE), /* pcrel_offset */
1184
1185 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1186 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1187 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1188 0, /* rightshift */
1189 1, /* size (0 = byte, 1 = short, 2 = long) */
1190 16, /* bitsize */
1191 FALSE, /* pc_relative */
1192 0, /* bitpos */
1193 complain_overflow_signed, /* complain_on_overflow */
1194 ppc64_elf_unhandled_reloc, /* special_function */
1195 "R_PPC64_PLTGOT16_DS", /* name */
1196 FALSE, /* partial_inplace */
1197 0, /* src_mask */
1198 0xfffc, /* dst_mask */
1199 FALSE), /* pcrel_offset */
1200
1201 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1202 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1203 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1204 0, /* rightshift */
1205 1, /* size (0 = byte, 1 = short, 2 = long) */
1206 16, /* bitsize */
1207 FALSE, /* pc_relative */
1208 0, /* bitpos */
1209 complain_overflow_dont, /* complain_on_overflow */
1210 ppc64_elf_unhandled_reloc, /* special_function */
1211 "R_PPC64_PLTGOT16_LO_DS",/* name */
1212 FALSE, /* partial_inplace */
1213 0, /* src_mask */
1214 0xfffc, /* dst_mask */
1215 FALSE), /* pcrel_offset */
1216
1217 /* Marker reloc for TLS. */
1218 HOWTO (R_PPC64_TLS,
1219 0, /* rightshift */
1220 2, /* size (0 = byte, 1 = short, 2 = long) */
1221 32, /* bitsize */
1222 FALSE, /* pc_relative */
1223 0, /* bitpos */
1224 complain_overflow_dont, /* complain_on_overflow */
1225 bfd_elf_generic_reloc, /* special_function */
1226 "R_PPC64_TLS", /* name */
1227 FALSE, /* partial_inplace */
1228 0, /* src_mask */
1229 0, /* dst_mask */
1230 FALSE), /* pcrel_offset */
1231
1232 /* Computes the load module index of the load module that contains the
1233 definition of its TLS sym. */
1234 HOWTO (R_PPC64_DTPMOD64,
1235 0, /* rightshift */
1236 4, /* size (0 = byte, 1 = short, 2 = long) */
1237 64, /* bitsize */
1238 FALSE, /* pc_relative */
1239 0, /* bitpos */
1240 complain_overflow_dont, /* complain_on_overflow */
1241 ppc64_elf_unhandled_reloc, /* special_function */
1242 "R_PPC64_DTPMOD64", /* name */
1243 FALSE, /* partial_inplace */
1244 0, /* src_mask */
1245 ONES (64), /* dst_mask */
1246 FALSE), /* pcrel_offset */
1247
1248 /* Computes a dtv-relative displacement, the difference between the value
1249 of sym+add and the base address of the thread-local storage block that
1250 contains the definition of sym, minus 0x8000. */
1251 HOWTO (R_PPC64_DTPREL64,
1252 0, /* rightshift */
1253 4, /* size (0 = byte, 1 = short, 2 = long) */
1254 64, /* bitsize */
1255 FALSE, /* pc_relative */
1256 0, /* bitpos */
1257 complain_overflow_dont, /* complain_on_overflow */
1258 ppc64_elf_unhandled_reloc, /* special_function */
1259 "R_PPC64_DTPREL64", /* name */
1260 FALSE, /* partial_inplace */
1261 0, /* src_mask */
1262 ONES (64), /* dst_mask */
1263 FALSE), /* pcrel_offset */
1264
1265 /* A 16 bit dtprel reloc. */
1266 HOWTO (R_PPC64_DTPREL16,
1267 0, /* rightshift */
1268 1, /* size (0 = byte, 1 = short, 2 = long) */
1269 16, /* bitsize */
1270 FALSE, /* pc_relative */
1271 0, /* bitpos */
1272 complain_overflow_signed, /* complain_on_overflow */
1273 ppc64_elf_unhandled_reloc, /* special_function */
1274 "R_PPC64_DTPREL16", /* name */
1275 FALSE, /* partial_inplace */
1276 0, /* src_mask */
1277 0xffff, /* dst_mask */
1278 FALSE), /* pcrel_offset */
1279
1280 /* Like DTPREL16, but no overflow. */
1281 HOWTO (R_PPC64_DTPREL16_LO,
1282 0, /* rightshift */
1283 1, /* size (0 = byte, 1 = short, 2 = long) */
1284 16, /* bitsize */
1285 FALSE, /* pc_relative */
1286 0, /* bitpos */
1287 complain_overflow_dont, /* complain_on_overflow */
1288 ppc64_elf_unhandled_reloc, /* special_function */
1289 "R_PPC64_DTPREL16_LO", /* name */
1290 FALSE, /* partial_inplace */
1291 0, /* src_mask */
1292 0xffff, /* dst_mask */
1293 FALSE), /* pcrel_offset */
1294
1295 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1296 HOWTO (R_PPC64_DTPREL16_HI,
1297 16, /* rightshift */
1298 1, /* size (0 = byte, 1 = short, 2 = long) */
1299 16, /* bitsize */
1300 FALSE, /* pc_relative */
1301 0, /* bitpos */
1302 complain_overflow_dont, /* complain_on_overflow */
1303 ppc64_elf_unhandled_reloc, /* special_function */
1304 "R_PPC64_DTPREL16_HI", /* name */
1305 FALSE, /* partial_inplace */
1306 0, /* src_mask */
1307 0xffff, /* dst_mask */
1308 FALSE), /* pcrel_offset */
1309
1310 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1311 HOWTO (R_PPC64_DTPREL16_HA,
1312 16, /* rightshift */
1313 1, /* size (0 = byte, 1 = short, 2 = long) */
1314 16, /* bitsize */
1315 FALSE, /* pc_relative */
1316 0, /* bitpos */
1317 complain_overflow_dont, /* complain_on_overflow */
1318 ppc64_elf_unhandled_reloc, /* special_function */
1319 "R_PPC64_DTPREL16_HA", /* name */
1320 FALSE, /* partial_inplace */
1321 0, /* src_mask */
1322 0xffff, /* dst_mask */
1323 FALSE), /* pcrel_offset */
1324
1325 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1326 HOWTO (R_PPC64_DTPREL16_HIGHER,
1327 32, /* rightshift */
1328 1, /* size (0 = byte, 1 = short, 2 = long) */
1329 16, /* bitsize */
1330 FALSE, /* pc_relative */
1331 0, /* bitpos */
1332 complain_overflow_dont, /* complain_on_overflow */
1333 ppc64_elf_unhandled_reloc, /* special_function */
1334 "R_PPC64_DTPREL16_HIGHER", /* name */
1335 FALSE, /* partial_inplace */
1336 0, /* src_mask */
1337 0xffff, /* dst_mask */
1338 FALSE), /* pcrel_offset */
1339
1340 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1341 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1342 32, /* rightshift */
1343 1, /* size (0 = byte, 1 = short, 2 = long) */
1344 16, /* bitsize */
1345 FALSE, /* pc_relative */
1346 0, /* bitpos */
1347 complain_overflow_dont, /* complain_on_overflow */
1348 ppc64_elf_unhandled_reloc, /* special_function */
1349 "R_PPC64_DTPREL16_HIGHERA", /* name */
1350 FALSE, /* partial_inplace */
1351 0, /* src_mask */
1352 0xffff, /* dst_mask */
1353 FALSE), /* pcrel_offset */
1354
1355 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1356 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1357 48, /* rightshift */
1358 1, /* size (0 = byte, 1 = short, 2 = long) */
1359 16, /* bitsize */
1360 FALSE, /* pc_relative */
1361 0, /* bitpos */
1362 complain_overflow_dont, /* complain_on_overflow */
1363 ppc64_elf_unhandled_reloc, /* special_function */
1364 "R_PPC64_DTPREL16_HIGHEST", /* name */
1365 FALSE, /* partial_inplace */
1366 0, /* src_mask */
1367 0xffff, /* dst_mask */
1368 FALSE), /* pcrel_offset */
1369
1370 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1371 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1372 48, /* rightshift */
1373 1, /* size (0 = byte, 1 = short, 2 = long) */
1374 16, /* bitsize */
1375 FALSE, /* pc_relative */
1376 0, /* bitpos */
1377 complain_overflow_dont, /* complain_on_overflow */
1378 ppc64_elf_unhandled_reloc, /* special_function */
1379 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1380 FALSE, /* partial_inplace */
1381 0, /* src_mask */
1382 0xffff, /* dst_mask */
1383 FALSE), /* pcrel_offset */
1384
1385 /* Like DTPREL16, but for insns with a DS field. */
1386 HOWTO (R_PPC64_DTPREL16_DS,
1387 0, /* rightshift */
1388 1, /* size (0 = byte, 1 = short, 2 = long) */
1389 16, /* bitsize */
1390 FALSE, /* pc_relative */
1391 0, /* bitpos */
1392 complain_overflow_signed, /* complain_on_overflow */
1393 ppc64_elf_unhandled_reloc, /* special_function */
1394 "R_PPC64_DTPREL16_DS", /* name */
1395 FALSE, /* partial_inplace */
1396 0, /* src_mask */
1397 0xfffc, /* dst_mask */
1398 FALSE), /* pcrel_offset */
1399
1400 /* Like DTPREL16_DS, but no overflow. */
1401 HOWTO (R_PPC64_DTPREL16_LO_DS,
1402 0, /* rightshift */
1403 1, /* size (0 = byte, 1 = short, 2 = long) */
1404 16, /* bitsize */
1405 FALSE, /* pc_relative */
1406 0, /* bitpos */
1407 complain_overflow_dont, /* complain_on_overflow */
1408 ppc64_elf_unhandled_reloc, /* special_function */
1409 "R_PPC64_DTPREL16_LO_DS", /* name */
1410 FALSE, /* partial_inplace */
1411 0, /* src_mask */
1412 0xfffc, /* dst_mask */
1413 FALSE), /* pcrel_offset */
1414
1415 /* Computes a tp-relative displacement, the difference between the value of
1416 sym+add and the value of the thread pointer (r13). */
1417 HOWTO (R_PPC64_TPREL64,
1418 0, /* rightshift */
1419 4, /* size (0 = byte, 1 = short, 2 = long) */
1420 64, /* bitsize */
1421 FALSE, /* pc_relative */
1422 0, /* bitpos */
1423 complain_overflow_dont, /* complain_on_overflow */
1424 ppc64_elf_unhandled_reloc, /* special_function */
1425 "R_PPC64_TPREL64", /* name */
1426 FALSE, /* partial_inplace */
1427 0, /* src_mask */
1428 ONES (64), /* dst_mask */
1429 FALSE), /* pcrel_offset */
1430
1431 /* A 16 bit tprel reloc. */
1432 HOWTO (R_PPC64_TPREL16,
1433 0, /* rightshift */
1434 1, /* size (0 = byte, 1 = short, 2 = long) */
1435 16, /* bitsize */
1436 FALSE, /* pc_relative */
1437 0, /* bitpos */
1438 complain_overflow_signed, /* complain_on_overflow */
1439 ppc64_elf_unhandled_reloc, /* special_function */
1440 "R_PPC64_TPREL16", /* name */
1441 FALSE, /* partial_inplace */
1442 0, /* src_mask */
1443 0xffff, /* dst_mask */
1444 FALSE), /* pcrel_offset */
1445
1446 /* Like TPREL16, but no overflow. */
1447 HOWTO (R_PPC64_TPREL16_LO,
1448 0, /* rightshift */
1449 1, /* size (0 = byte, 1 = short, 2 = long) */
1450 16, /* bitsize */
1451 FALSE, /* pc_relative */
1452 0, /* bitpos */
1453 complain_overflow_dont, /* complain_on_overflow */
1454 ppc64_elf_unhandled_reloc, /* special_function */
1455 "R_PPC64_TPREL16_LO", /* name */
1456 FALSE, /* partial_inplace */
1457 0, /* src_mask */
1458 0xffff, /* dst_mask */
1459 FALSE), /* pcrel_offset */
1460
1461 /* Like TPREL16_LO, but next higher group of 16 bits. */
1462 HOWTO (R_PPC64_TPREL16_HI,
1463 16, /* rightshift */
1464 1, /* size (0 = byte, 1 = short, 2 = long) */
1465 16, /* bitsize */
1466 FALSE, /* pc_relative */
1467 0, /* bitpos */
1468 complain_overflow_dont, /* complain_on_overflow */
1469 ppc64_elf_unhandled_reloc, /* special_function */
1470 "R_PPC64_TPREL16_HI", /* name */
1471 FALSE, /* partial_inplace */
1472 0, /* src_mask */
1473 0xffff, /* dst_mask */
1474 FALSE), /* pcrel_offset */
1475
1476 /* Like TPREL16_HI, but adjust for low 16 bits. */
1477 HOWTO (R_PPC64_TPREL16_HA,
1478 16, /* rightshift */
1479 1, /* size (0 = byte, 1 = short, 2 = long) */
1480 16, /* bitsize */
1481 FALSE, /* pc_relative */
1482 0, /* bitpos */
1483 complain_overflow_dont, /* complain_on_overflow */
1484 ppc64_elf_unhandled_reloc, /* special_function */
1485 "R_PPC64_TPREL16_HA", /* name */
1486 FALSE, /* partial_inplace */
1487 0, /* src_mask */
1488 0xffff, /* dst_mask */
1489 FALSE), /* pcrel_offset */
1490
1491 /* Like TPREL16_HI, but next higher group of 16 bits. */
1492 HOWTO (R_PPC64_TPREL16_HIGHER,
1493 32, /* rightshift */
1494 1, /* size (0 = byte, 1 = short, 2 = long) */
1495 16, /* bitsize */
1496 FALSE, /* pc_relative */
1497 0, /* bitpos */
1498 complain_overflow_dont, /* complain_on_overflow */
1499 ppc64_elf_unhandled_reloc, /* special_function */
1500 "R_PPC64_TPREL16_HIGHER", /* name */
1501 FALSE, /* partial_inplace */
1502 0, /* src_mask */
1503 0xffff, /* dst_mask */
1504 FALSE), /* pcrel_offset */
1505
1506 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1507 HOWTO (R_PPC64_TPREL16_HIGHERA,
1508 32, /* rightshift */
1509 1, /* size (0 = byte, 1 = short, 2 = long) */
1510 16, /* bitsize */
1511 FALSE, /* pc_relative */
1512 0, /* bitpos */
1513 complain_overflow_dont, /* complain_on_overflow */
1514 ppc64_elf_unhandled_reloc, /* special_function */
1515 "R_PPC64_TPREL16_HIGHERA", /* name */
1516 FALSE, /* partial_inplace */
1517 0, /* src_mask */
1518 0xffff, /* dst_mask */
1519 FALSE), /* pcrel_offset */
1520
1521 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1522 HOWTO (R_PPC64_TPREL16_HIGHEST,
1523 48, /* rightshift */
1524 1, /* size (0 = byte, 1 = short, 2 = long) */
1525 16, /* bitsize */
1526 FALSE, /* pc_relative */
1527 0, /* bitpos */
1528 complain_overflow_dont, /* complain_on_overflow */
1529 ppc64_elf_unhandled_reloc, /* special_function */
1530 "R_PPC64_TPREL16_HIGHEST", /* name */
1531 FALSE, /* partial_inplace */
1532 0, /* src_mask */
1533 0xffff, /* dst_mask */
1534 FALSE), /* pcrel_offset */
1535
1536 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1537 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1538 48, /* rightshift */
1539 1, /* size (0 = byte, 1 = short, 2 = long) */
1540 16, /* bitsize */
1541 FALSE, /* pc_relative */
1542 0, /* bitpos */
1543 complain_overflow_dont, /* complain_on_overflow */
1544 ppc64_elf_unhandled_reloc, /* special_function */
1545 "R_PPC64_TPREL16_HIGHESTA", /* name */
1546 FALSE, /* partial_inplace */
1547 0, /* src_mask */
1548 0xffff, /* dst_mask */
1549 FALSE), /* pcrel_offset */
1550
1551 /* Like TPREL16, but for insns with a DS field. */
1552 HOWTO (R_PPC64_TPREL16_DS,
1553 0, /* rightshift */
1554 1, /* size (0 = byte, 1 = short, 2 = long) */
1555 16, /* bitsize */
1556 FALSE, /* pc_relative */
1557 0, /* bitpos */
1558 complain_overflow_signed, /* complain_on_overflow */
1559 ppc64_elf_unhandled_reloc, /* special_function */
1560 "R_PPC64_TPREL16_DS", /* name */
1561 FALSE, /* partial_inplace */
1562 0, /* src_mask */
1563 0xfffc, /* dst_mask */
1564 FALSE), /* pcrel_offset */
1565
1566 /* Like TPREL16_DS, but no overflow. */
1567 HOWTO (R_PPC64_TPREL16_LO_DS,
1568 0, /* rightshift */
1569 1, /* size (0 = byte, 1 = short, 2 = long) */
1570 16, /* bitsize */
1571 FALSE, /* pc_relative */
1572 0, /* bitpos */
1573 complain_overflow_dont, /* complain_on_overflow */
1574 ppc64_elf_unhandled_reloc, /* special_function */
1575 "R_PPC64_TPREL16_LO_DS", /* name */
1576 FALSE, /* partial_inplace */
1577 0, /* src_mask */
1578 0xfffc, /* dst_mask */
1579 FALSE), /* pcrel_offset */
1580
1581 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1582 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1583 to the first entry relative to the TOC base (r2). */
1584 HOWTO (R_PPC64_GOT_TLSGD16,
1585 0, /* rightshift */
1586 1, /* size (0 = byte, 1 = short, 2 = long) */
1587 16, /* bitsize */
1588 FALSE, /* pc_relative */
1589 0, /* bitpos */
1590 complain_overflow_signed, /* complain_on_overflow */
1591 ppc64_elf_unhandled_reloc, /* special_function */
1592 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1593 FALSE, /* partial_inplace */
5bd4f169
AM		 1594 0, /* src_mask */
1595 0xffff, /* dst_mask */
b34976b6 1596 FALSE), /* pcrel_offset */
5bd4f169 1597
411e1bfb
AM		 1598 /* Like GOT_TLSGD16, but no overflow. */
1599 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1600 0, /* rightshift */
1601 1, /* size (0 = byte, 1 = short, 2 = long) */
1602 16, /* bitsize */
b34976b6 1603 FALSE, /* pc_relative */
5bd4f169
AM		 1604 0, /* bitpos */
1605 complain_overflow_dont, /* complain_on_overflow */
805fc799 1606 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1607 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1608 FALSE, /* partial_inplace */
5bd4f169
AM		 1609 0, /* src_mask */
1610 0xffff, /* dst_mask */
b34976b6 1611 FALSE), /* pcrel_offset */
5bd4f169 1612
411e1bfb
AM		 1613 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1614 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1615 16, /* rightshift */
1616 1, /* size (0 = byte, 1 = short, 2 = long) */
1617 16, /* bitsize */
b34976b6 1618 FALSE, /* pc_relative */
5bd4f169
AM		 1619 0, /* bitpos */
1620 complain_overflow_dont, /* complain_on_overflow */
805fc799 1621 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1622 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1623 FALSE, /* partial_inplace */
5bd4f169
AM		 1624 0, /* src_mask */
1625 0xffff, /* dst_mask */
b34976b6 1626 FALSE), /* pcrel_offset */
5bd4f169 1627
411e1bfb
AM		 1628 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1629 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1630 16, /* rightshift */
1631 1, /* size (0 = byte, 1 = short, 2 = long) */
1632 16, /* bitsize */
b34976b6 1633 FALSE, /* pc_relative */
5bd4f169 1634 0, /* bitpos */
411e1bfb 1635 complain_overflow_dont, /* complain_on_overflow */
805fc799 1636 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1637 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1638 FALSE, /* partial_inplace */
5bd4f169
AM		 1639 0, /* src_mask */
1640 0xffff, /* dst_mask */
b34976b6 1641 FALSE), /* pcrel_offset */
5bd4f169 1642
411e1bfb
AM		 1643 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1644 with values (sym+add)@dtpmod and zero, and computes the offset to the
1645 first entry relative to the TOC base (r2). */
1646 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1647 0, /* rightshift */
1648 1, /* size (0 = byte, 1 = short, 2 = long) */
1649 16, /* bitsize */
b34976b6 1650 FALSE, /* pc_relative */
5bd4f169 1651 0, /* bitpos */
411e1bfb
AM		 1652 complain_overflow_signed, /* complain_on_overflow */
1653 ppc64_elf_unhandled_reloc, /* special_function */
1654 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1655 FALSE, /* partial_inplace */
d006db6c 1656 0, /* src_mask */
411e1bfb 1657 0xffff, /* dst_mask */
b34976b6 1658 FALSE), /* pcrel_offset */
5bd4f169 1659
411e1bfb
AM		 1660 /* Like GOT_TLSLD16, but no overflow. */
1661 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1662 0, /* rightshift */
1663 1, /* size (0 = byte, 1 = short, 2 = long) */
1664 16, /* bitsize */
b34976b6 1665 FALSE, /* pc_relative */
5bd4f169 1666 0, /* bitpos */
411e1bfb
AM		 1667 complain_overflow_dont, /* complain_on_overflow */
1668 ppc64_elf_unhandled_reloc, /* special_function */
1669 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1670 FALSE, /* partial_inplace */
d006db6c 1671 0, /* src_mask */
411e1bfb 1672 0xffff, /* dst_mask */
b34976b6 1673 FALSE), /* pcrel_offset */
5bd4f169 1674
411e1bfb
AM		 1675 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1676 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1677 16, /* rightshift */
5bd4f169
AM		 1678 1, /* size (0 = byte, 1 = short, 2 = long) */
1679 16, /* bitsize */
b34976b6 1680 FALSE, /* pc_relative */
5bd4f169 1681 0, /* bitpos */
411e1bfb 1682 complain_overflow_dont, /* complain_on_overflow */
805fc799 1683 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1684 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1685 FALSE, /* partial_inplace */
d006db6c 1686 0, /* src_mask */
411e1bfb 1687 0xffff, /* dst_mask */
b34976b6 1688 FALSE), /* pcrel_offset */
5bd4f169 1689
411e1bfb
AM		 1690 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1691 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1692 16, /* rightshift */
5bd4f169
AM		 1693 1, /* size (0 = byte, 1 = short, 2 = long) */
1694 16, /* bitsize */
b34976b6 1695 FALSE, /* pc_relative */
5bd4f169
AM		 1696 0, /* bitpos */
1697 complain_overflow_dont, /* complain_on_overflow */
805fc799 1698 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1699 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1700 FALSE, /* partial_inplace */
d006db6c 1701 0, /* src_mask */
411e1bfb 1702 0xffff, /* dst_mask */
b34976b6 1703 FALSE), /* pcrel_offset */
5bd4f169 1704
411e1bfb
AM		 1705 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1706 the offset to the entry relative to the TOC base (r2). */
1707 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1708 0, /* rightshift */
1709 1, /* size (0 = byte, 1 = short, 2 = long) */
1710 16, /* bitsize */
b34976b6 1711 FALSE, /* pc_relative */
5bd4f169 1712 0, /* bitpos */
411e1bfb 1713 complain_overflow_signed, /* complain_on_overflow */
805fc799 1714 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1715 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1716 FALSE, /* partial_inplace */
d006db6c 1717 0, /* src_mask */
5bd4f169 1718 0xfffc, /* dst_mask */
b34976b6 1719 FALSE), /* pcrel_offset */
5bd4f169 1720
411e1bfb
AM		 1721 /* Like GOT_DTPREL16_DS, but no overflow. */
1722 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1723 0, /* rightshift */
c061c2d8
AM		 1724 1, /* size (0 = byte, 1 = short, 2 = long) */
1725 16, /* bitsize */
b34976b6 1726 FALSE, /* pc_relative */
5bd4f169 1727 0, /* bitpos */
411e1bfb
AM		 1728 complain_overflow_dont, /* complain_on_overflow */
1729 ppc64_elf_unhandled_reloc, /* special_function */
1730 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1731 FALSE, /* partial_inplace */
d006db6c 1732 0, /* src_mask */
c061c2d8 1733 0xfffc, /* dst_mask */
b34976b6 1734 FALSE), /* pcrel_offset */
5bd4f169 1735
411e1bfb
AM		 1736 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1737 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1738 16, /* rightshift */
5bd4f169
AM		 1739 1, /* size (0 = byte, 1 = short, 2 = long) */
1740 16, /* bitsize */
b34976b6 1741 FALSE, /* pc_relative */
5bd4f169
AM		 1742 0, /* bitpos */
1743 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1744 ppc64_elf_unhandled_reloc, /* special_function */
1745 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1746 FALSE, /* partial_inplace */
d006db6c 1747 0, /* src_mask */
411e1bfb 1748 0xffff, /* dst_mask */
b34976b6 1749 FALSE), /* pcrel_offset */
5bd4f169 1750
411e1bfb
AM		 1751 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1752 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1753 16, /* rightshift */
1754 1, /* size (0 = byte, 1 = short, 2 = long) */
1755 16, /* bitsize */
1756 FALSE, /* pc_relative */
1757 0, /* bitpos */
1758 complain_overflow_dont, /* complain_on_overflow */
1759 ppc64_elf_unhandled_reloc, /* special_function */
1760 "R_PPC64_GOT_DTPREL16_HA", /* name */
1761 FALSE, /* partial_inplace */
1762 0, /* src_mask */
1763 0xffff, /* dst_mask */
1764 FALSE), /* pcrel_offset */
1765
1766 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1767 offset to the entry relative to the TOC base (r2). */
1768 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1769 0, /* rightshift */
1770 1, /* size (0 = byte, 1 = short, 2 = long) */
1771 16, /* bitsize */
b34976b6 1772 FALSE, /* pc_relative */
5bd4f169
AM		 1773 0, /* bitpos */
1774 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1775 ppc64_elf_unhandled_reloc, /* special_function */
1776 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1777 FALSE, /* partial_inplace */
d006db6c 1778 0, /* src_mask */
ad8e1ba5 1779 0xfffc, /* dst_mask */
b34976b6 1780 FALSE), /* pcrel_offset */
5bd4f169 1781
411e1bfb
AM		 1782 /* Like GOT_TPREL16_DS, but no overflow. */
1783 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1784 0, /* rightshift */
1785 1, /* size (0 = byte, 1 = short, 2 = long) */
1786 16, /* bitsize */
b34976b6 1787 FALSE, /* pc_relative */
5bd4f169
AM		 1788 0, /* bitpos */
1789 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1790 ppc64_elf_unhandled_reloc, /* special_function */
1791 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1792 FALSE, /* partial_inplace */
d006db6c 1793 0, /* src_mask */
ad8e1ba5 1794 0xfffc, /* dst_mask */
b34976b6 1795 FALSE), /* pcrel_offset */
5bd4f169 1796
411e1bfb
AM		 1797 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1798 HOWTO (R_PPC64_GOT_TPREL16_HI,
1799 16, /* rightshift */
5bd4f169
AM		 1800 1, /* size (0 = byte, 1 = short, 2 = long) */
1801 16, /* bitsize */
b34976b6 1802 FALSE, /* pc_relative */
5bd4f169 1803 0, /* bitpos */
411e1bfb 1804 complain_overflow_dont, /* complain_on_overflow */
805fc799 1805 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1806 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1807 FALSE, /* partial_inplace */
d006db6c 1808 0, /* src_mask */
411e1bfb 1809 0xffff, /* dst_mask */
b34976b6 1810 FALSE), /* pcrel_offset */
5bd4f169 1811
411e1bfb
AM		 1812 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1813 HOWTO (R_PPC64_GOT_TPREL16_HA,
1814 16, /* rightshift */
5bd4f169
AM		 1815 1, /* size (0 = byte, 1 = short, 2 = long) */
1816 16, /* bitsize */
b34976b6 1817 FALSE, /* pc_relative */
5bd4f169
AM		 1818 0, /* bitpos */
1819 complain_overflow_dont, /* complain_on_overflow */
805fc799 1820 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1821 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1822 FALSE, /* partial_inplace */
d006db6c 1823 0, /* src_mask */
411e1bfb 1824 0xffff, /* dst_mask */
b34976b6 1825 FALSE), /* pcrel_offset */
5bd4f169
AM		 1826
1827 /* GNU extension to record C++ vtable hierarchy. */
1828 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1829 0, /* rightshift */
1830 0, /* size (0 = byte, 1 = short, 2 = long) */
1831 0, /* bitsize */
b34976b6 1832 FALSE, /* pc_relative */
5bd4f169
AM		 1833 0, /* bitpos */
1834 complain_overflow_dont, /* complain_on_overflow */
1835 NULL, /* special_function */
1836 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1837 FALSE, /* partial_inplace */
5bd4f169
AM		 1838 0, /* src_mask */
1839 0, /* dst_mask */
b34976b6 1840 FALSE), /* pcrel_offset */
5bd4f169
AM		 1841
1842 /* GNU extension to record C++ vtable member usage. */
1843 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1844 0, /* rightshift */
1845 0, /* size (0 = byte, 1 = short, 2 = long) */
1846 0, /* bitsize */
b34976b6 1847 FALSE, /* pc_relative */
5bd4f169
AM		 1848 0, /* bitpos */
1849 complain_overflow_dont, /* complain_on_overflow */
1850 NULL, /* special_function */
1851 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1852 FALSE, /* partial_inplace */
5bd4f169
AM		 1853 0, /* src_mask */
1854 0, /* dst_mask */
b34976b6 1855 FALSE), /* pcrel_offset */
5bd4f169
AM		 1856};
1857
1858\f
1859/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1860 be done. */
1861
1862static void
4ce794b7 1863ppc_howto_init (void)
5bd4f169
AM		 1864{
1865 unsigned int i, type;
1866
1867 for (i = 0;
1868 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1869 i++)
1870 {
1871 type = ppc64_elf_howto_raw[i].type;
1872 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1873 / sizeof (ppc64_elf_howto_table[0])));
1874 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1875 }
1876}
1877
1878static reloc_howto_type *
4ce794b7
AM		 1879ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1880 bfd_reloc_code_real_type code)
5bd4f169 1881{
411e1bfb 1882 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 1883
1884 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1885 /* Initialize howto table if needed. */
1886 ppc_howto_init ();
1887
4ce794b7 1888 switch (code)
5bd4f169
AM		 1889 {
1890 default:
4ce794b7 1891 return NULL;
5bd4f169 1892
411e1bfb
AM		 1893 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1894 break;
1895 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1896 break;
1897 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1898 break;
1899 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1900 break;
1901 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1902 break;
1903 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1904 break;
1905 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1906 break;
411e1bfb 1907 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1908 break;
411e1bfb 1909 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1910 break;
411e1bfb 1911 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1912 break;
411e1bfb 1913 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1914 break;
411e1bfb 1915 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1916 break;
411e1bfb 1917 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1918 break;
411e1bfb 1919 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1920 break;
411e1bfb 1921 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1922 break;
411e1bfb 1923 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1924 break;
411e1bfb 1925 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1926 break;
411e1bfb 1927 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1928 break;
411e1bfb 1929 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1930 break;
411e1bfb 1931 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1932 break;
411e1bfb 1933 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1934 break;
411e1bfb 1935 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1936 break;
411e1bfb 1937 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1938 break;
411e1bfb 1939 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1940 break;
411e1bfb 1941 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1942 break;
411e1bfb 1943 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1944 break;
411e1bfb 1945 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1946 break;
411e1bfb 1947 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1948 break;
411e1bfb 1949 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1950 break;
411e1bfb 1951 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1952 break;
411e1bfb 1953 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1954 break;
411e1bfb 1955 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1956 break;
411e1bfb 1957 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1958 break;
411e1bfb 1959 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1960 break;
411e1bfb 1961 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1962 break;
411e1bfb 1963 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1964 break;
411e1bfb 1965 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1966 break;
411e1bfb 1967 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1968 break;
411e1bfb 1969 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1970 break;
411e1bfb 1971 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1972 break;
411e1bfb 1973 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1974 break;
411e1bfb 1975 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1976 break;
411e1bfb 1977 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1978 break;
411e1bfb 1979 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1980 break;
411e1bfb 1981 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1982 break;
411e1bfb 1983 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1984 break;
411e1bfb 1985 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1986 break;
411e1bfb 1987 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1988 break;
411e1bfb 1989 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1990 break;
411e1bfb 1991 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 1992 break;
411e1bfb 1993 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 1994 break;
411e1bfb 1995 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 1996 break;
411e1bfb 1997 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 1998 break;
411e1bfb 1999 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 2000 break;
411e1bfb 2001 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 2002 break;
411e1bfb 2003 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 2004 break;
411e1bfb 2005 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2006 break;
411e1bfb 2007 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2008 break;
411e1bfb 2009 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2010 break;
411e1bfb 2011 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2012 break;
411e1bfb 2013 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2014 break;
411e1bfb 2015 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2016 break;
411e1bfb 2017 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2018 break;
411e1bfb 2019 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2020 break;
411e1bfb 2021 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2022 break;
411e1bfb 2023 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2024 break;
411e1bfb
AM		 2025 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2026 break;
2027 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2028 break;
2029 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2030 break;
2031 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2032 break;
2033 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2034 break;
2035 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2036 break;
2037 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2038 break;
2039 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2040 break;
2041 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2042 break;
2043 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2044 break;
2045 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2046 break;
2047 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2048 break;
2049 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2050 break;
2051 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2052 break;
2053 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2054 break;
2055 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2056 break;
2057 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2058 break;
2059 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2060 break;
2061 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2062 break;
2063 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2064 break;
2065 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2066 break;
2067 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2068 break;
2069 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2070 break;
2071 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2072 break;
2073 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2074 break;
2075 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2076 break;
2077 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2078 break;
2079 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2080 break;
2081 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2082 break;
2083 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2084 break;
2085 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2086 break;
2087 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2088 break;
2089 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2090 break;
2091 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2092 break;
2093 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2094 break;
2095 }
2096
4ce794b7 2097 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2098};
2099
2100/* Set the howto pointer for a PowerPC ELF reloc. */
2101
2102static void
4ce794b7
AM		 2103ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2104 Elf_Internal_Rela *dst)
5bd4f169 2105{
65f38f15
AM		 2106 unsigned int type;
2107
ef60b7ff 2108 /* Initialize howto table if needed. */
5bd4f169 2109 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2110 ppc_howto_init ();
2111
65f38f15
AM		 2112 type = ELF64_R_TYPE (dst->r_info);
2113 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2114 / sizeof (ppc64_elf_howto_table[0])));
2115 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2116}
2117
04c9666a 2118/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2119
2120static bfd_reloc_status_type
4ce794b7
AM		 2121ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2122 void *data, asection *input_section,
2123 bfd *output_bfd, char **error_message)
5bd4f169 2124{
805fc799
AM		 2125 /* If this is a relocatable link (output_bfd test tells us), just
2126 call the generic function. Any adjustment will be done at final
2127 link time. */
2128 if (output_bfd != NULL)
cedb70c5 2129 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2130 input_section, output_bfd, error_message);
2131
2132 /* Adjust the addend for sign extension of the low 16 bits.
2133 We won't actually be using the low 16 bits, so trashing them
2134 doesn't matter. */
2135 reloc_entry->addend += 0x8000;
2136 return bfd_reloc_continue;
2137}
5bd4f169 2138
2441e016
AM		 2139static bfd_reloc_status_type
2140ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2141 void *data, asection *input_section,
2142 bfd *output_bfd, char **error_message)
2143{
2144 if (output_bfd != NULL)
2145 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2146 input_section, output_bfd, error_message);
2147
2148 if (strcmp (symbol->section->name, ".opd") == 0)
2149 {
2150 bfd_vma dest = opd_entry_value (symbol->section,
2151 symbol->value + reloc_entry->addend,
2152 NULL, NULL);
2153 if (dest != (bfd_vma) -1)
2154 reloc_entry->addend = dest - (symbol->value
2155 + symbol->section->output_section->vma
2156 + symbol->section->output_offset);
2157 }
2158 return bfd_reloc_continue;
2159}
2160
805fc799 2161static bfd_reloc_status_type
4ce794b7
AM		 2162ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2163 void *data, asection *input_section,
2164 bfd *output_bfd, char **error_message)
805fc799
AM		 2165{
2166 long insn;
04c9666a 2167 enum elf_ppc64_reloc_type r_type;
805fc799
AM		 2168 bfd_size_type octets;
2169 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2170 bfd_boolean is_power4 = FALSE;
805fc799
AM		 2171
2172 /* If this is a relocatable link (output_bfd test tells us), just
2173 call the generic function. Any adjustment will be done at final
2174 link time. */
5bd4f169 2175 if (output_bfd != NULL)
cedb70c5 2176 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2177 input_section, output_bfd, error_message);
2178
2179 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2180 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2181 insn &= ~(0x01 << 21);
4ce794b7 2182 r_type = reloc_entry->howto->type;
805fc799
AM		 2183 if (r_type == R_PPC64_ADDR14_BRTAKEN
2184 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2185 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM		 2186
2187 if (is_power4)
5bd4f169 2188 {
805fc799
AM		 2189 /* Set 'a' bit. This is 0b00010 in BO field for branch
2190 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2191 for branch on CTR insns (BO == 1a00t or 1a01t). */
2192 if ((insn & (0x14 << 21)) == (0x04 << 21))
2193 insn |= 0x02 << 21;
2194 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2195 insn |= 0x08 << 21;
2196 else
2441e016 2197 goto out;
5bd4f169 2198 }
805fc799
AM		 2199 else
2200 {
2201 bfd_vma target = 0;
2202 bfd_vma from;
5bd4f169 2203
805fc799
AM		 2204 if (!bfd_is_com_section (symbol->section))
2205 target = symbol->value;
2206 target += symbol->section->output_section->vma;
2207 target += symbol->section->output_offset;
2208 target += reloc_entry->addend;
5bd4f169 2209
805fc799
AM		 2210 from = (reloc_entry->address
2211 + input_section->output_offset
2212 + input_section->output_section->vma);
5bd4f169 2213
805fc799
AM		 2214 /* Invert 'y' bit if not the default. */
2215 if ((bfd_signed_vma) (target - from) < 0)
2216 insn ^= 0x01 << 21;
2217 }
4ce794b7 2218 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2441e016
AM		 2219 out:
2220 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2221 input_section, output_bfd, error_message);
805fc799 2222}
5bd4f169 2223
805fc799 2224static bfd_reloc_status_type
4ce794b7
AM		 2225ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2226 void *data, asection *input_section,
2227 bfd *output_bfd, char **error_message)
805fc799
AM		 2228{
2229 /* If this is a relocatable link (output_bfd test tells us), just
2230 call the generic function. Any adjustment will be done at final
2231 link time. */
2232 if (output_bfd != NULL)
cedb70c5 2233 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2234 input_section, output_bfd, error_message);
5bd4f169 2235
805fc799
AM		 2236 /* Subtract the symbol section base address. */
2237 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2238 return bfd_reloc_continue;
2239}
2240
805fc799 2241static bfd_reloc_status_type
4ce794b7
AM		 2242ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2243 void *data, asection *input_section,
2244 bfd *output_bfd, char **error_message)
805fc799
AM		 2245{
2246 /* If this is a relocatable link (output_bfd test tells us), just
2247 call the generic function. Any adjustment will be done at final
2248 link time. */
2249 if (output_bfd != NULL)
cedb70c5 2250 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2251 input_section, output_bfd, error_message);
2252
2253 /* Subtract the symbol section base address. */
2254 reloc_entry->addend -= symbol->section->output_section->vma;
2255
2256 /* Adjust the addend for sign extension of the low 16 bits. */
2257 reloc_entry->addend += 0x8000;
2258 return bfd_reloc_continue;
2259}
2260
2261static bfd_reloc_status_type
4ce794b7
AM		 2262ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2263 void *data, asection *input_section,
2264 bfd *output_bfd, char **error_message)
805fc799
AM		 2265{
2266 bfd_vma TOCstart;
2267
2268 /* If this is a relocatable link (output_bfd test tells us), just
2269 call the generic function. Any adjustment will be done at final
2270 link time. */
2271 if (output_bfd != NULL)
cedb70c5 2272 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2273 input_section, output_bfd, error_message);
2274
2275 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2276 if (TOCstart == 0)
2277 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2278
2279 /* Subtract the TOC base address. */
2280 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2281 return bfd_reloc_continue;
2282}
2283
2284static bfd_reloc_status_type
4ce794b7
AM		 2285ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2286 void *data, asection *input_section,
2287 bfd *output_bfd, char **error_message)
805fc799
AM		 2288{
2289 bfd_vma TOCstart;
2290
2291 /* If this is a relocatable link (output_bfd test tells us), just
2292 call the generic function. Any adjustment will be done at final
2293 link time. */
2294 if (output_bfd != NULL)
cedb70c5 2295 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2296 input_section, output_bfd, error_message);
2297
2298 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2299 if (TOCstart == 0)
2300 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2301
2302 /* Subtract the TOC base address. */
2303 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2304
2305 /* Adjust the addend for sign extension of the low 16 bits. */
2306 reloc_entry->addend += 0x8000;
2307 return bfd_reloc_continue;
2308}
2309
2310static bfd_reloc_status_type
4ce794b7
AM		 2311ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2312 void *data, asection *input_section,
2313 bfd *output_bfd, char **error_message)
805fc799
AM		 2314{
2315 bfd_vma TOCstart;
2316 bfd_size_type octets;
2317
2318 /* If this is a relocatable link (output_bfd test tells us), just
2319 call the generic function. Any adjustment will be done at final
2320 link time. */
2321 if (output_bfd != NULL)
cedb70c5 2322 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2323 input_section, output_bfd, error_message);
2324
2325 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2326 if (TOCstart == 0)
2327 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2328
2329 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2330 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2331 return bfd_reloc_ok;
2332}
2333
2334static bfd_reloc_status_type
4ce794b7
AM		 2335ppc64_elf_unhandled_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 /* If this is a relocatable link (output_bfd test tells us), just
2340 call the generic function. Any adjustment will be done at final
2341 link time. */
2342 if (output_bfd != NULL)
cedb70c5 2343 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2344 input_section, output_bfd, error_message);
2345
2346 if (error_message != NULL)
2347 {
2348 static char buf[60];
2349 sprintf (buf, "generic linker can't handle %s",
2350 reloc_entry->howto->name);
2351 *error_message = buf;
2352 }
2353 return bfd_reloc_dangerous;
2354}
2355
e717da7e
AM		 2356struct ppc64_elf_obj_tdata
2357{
2358 struct elf_obj_tdata elf;
2359
2360 /* Shortcuts to dynamic linker sections. */
2361 asection *got;
2362 asection *relgot;
2363
81688140
AM		 2364 /* Used during garbage collection. We attach global symbols defined
2365 on removed .opd entries to this section so that the sym is removed. */
2366 asection *deleted_section;
2367
e717da7e
AM		 2368 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2369 sections means we potentially need one of these for each input bfd. */
2370 union {
2371 bfd_signed_vma refcount;
2372 bfd_vma offset;
2373 } tlsld_got;
2374};
2375
2376#define ppc64_elf_tdata(bfd) \
2377 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2378
2379#define ppc64_tlsld_got(bfd) \
2380 (&ppc64_elf_tdata (bfd)->tlsld_got)
2381
2382/* Override the generic function because we store some extras. */
2383
2384static bfd_boolean
2385ppc64_elf_mkobject (bfd *abfd)
2386{
2387 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2388 abfd->tdata.any = bfd_zalloc (abfd, amt);
2389 if (abfd->tdata.any == NULL)
2390 return FALSE;
2391 return TRUE;
2392}
2393
feee612b
AM		 2394/* Fix bad default arch selected for a 64 bit input bfd when the
2395 default is 32 bit. */
2396
b34976b6 2397static bfd_boolean
4ce794b7 2398ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2399{
2400 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2401 {
2402 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2403
2404 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2405 {
2406 /* Relies on arch after 32 bit default being 64 bit default. */
2407 abfd->arch_info = abfd->arch_info->next;
2408 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2409 }
2410 }
b34976b6 2411 return TRUE;
feee612b
AM		 2412}
2413
d37c89e5
AM		 2414/* Support for core dump NOTE sections. */
2415
2416static bfd_boolean
2417ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2418{
eea6121a 2419 size_t offset, size;
d37c89e5
AM		 2420
2421 if (note->descsz != 504)
2422 return FALSE;
2423
2424 /* pr_cursig */
2425 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2426
2427 /* pr_pid */
2428 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2429
2430 /* pr_reg */
2431 offset = 112;
eea6121a 2432 size = 384;
d37c89e5
AM		 2433
2434 /* Make a ".reg/999" section. */
2435 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2436 size, note->descpos + offset);
d37c89e5
AM		 2437}
2438
2439static bfd_boolean
2440ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2441{
2442 if (note->descsz != 136)
2443 return FALSE;
2444
2445 elf_tdata (abfd)->core_program
2446 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2447 elf_tdata (abfd)->core_command
2448 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2449
2450 return TRUE;
2451}
2452
5bd4f169
AM		 2453/* Merge backend specific data from an object file to the output
2454 object file when linking. */
2f6d9989 2455
b34976b6 2456static bfd_boolean
4ce794b7 2457ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2458{
5bd4f169
AM		 2459 /* Check if we have the same endianess. */
2460 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2461 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM		 2462 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2463 {
2464 const char *msg;
2465
2466 if (bfd_big_endian (ibfd))
d003868e 2467 msg = _("%B: compiled for a big endian system "
4ce794b7 2468 "and target is little endian");
5bd4f169 2469 else
d003868e 2470 msg = _("%B: compiled for a little endian system "
4ce794b7 2471 "and target is big endian");
5bd4f169 2472
d003868e 2473 (*_bfd_error_handler) (msg, ibfd);
5bd4f169
AM		 2474
2475 bfd_set_error (bfd_error_wrong_format);
b34976b6 2476 return FALSE;
5bd4f169
AM		 2477 }
2478
b34976b6 2479 return TRUE;
5bd4f169 2480}
f0abc2a1 2481
5d35169e
AM		 2482/* Add extra PPC sections. */
2483
2484static struct bfd_elf_special_section const ppc64_elf_special_sections[]=
2485{
7dcb9820
AM		 2486 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2487 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2488 { ".plt", 4, 0, SHT_NOBITS, 0 },
2489 { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2490 { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2491 { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2492 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 2493};
2494
f0abc2a1
AM		 2495struct _ppc64_elf_section_data
2496{
2497 struct bfd_elf_section_data elf;
411e1bfb
AM		 2498
2499 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM		 2500 union
2501 {
411e1bfb 2502 /* Points to the function code section for local opd entries. */
f0abc2a1 2503 asection **func_sec;
411e1bfb 2504 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM		 2505 long *adjust;
2506 } opd;
411e1bfb
AM		 2507
2508 /* An array for toc sections, indexed by offset/8.
2509 Specifies the relocation symbol index used at a given toc offset. */
2510 unsigned *t_symndx;
f0abc2a1
AM		 2511};
2512
2513#define ppc64_elf_section_data(sec) \
411e1bfb 2514 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2515
2516static bfd_boolean
4ce794b7 2517ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1
AM		 2518{
2519 struct _ppc64_elf_section_data *sdata;
2520 bfd_size_type amt = sizeof (*sdata);
2521
4ce794b7 2522 sdata = bfd_zalloc (abfd, amt);
f0abc2a1
AM		 2523 if (sdata == NULL)
2524 return FALSE;
4ce794b7 2525 sec->used_by_bfd = sdata;
f0abc2a1
AM		 2526
2527 return _bfd_elf_new_section_hook (abfd, sec);
2528}
4025353c
AM		 2529
2530static void *
2531get_opd_info (asection * sec)
2532{
2533 if (sec != NULL
2534 && ppc64_elf_section_data (sec) != NULL
2535 && ppc64_elf_section_data (sec)->opd.adjust != NULL)
2536 return ppc64_elf_section_data (sec)->opd.adjust;
2537 return NULL;
2538}
90e3cdf2
JJ		 2539\f
2540/* Parameters for the qsort hook. */
2541static asection *synthetic_opd;
2542static bfd_boolean synthetic_relocatable;
2543
2544/* Helper routine for ppc64_elf_get_synthetic_symtab. */
2545
2546static int
2547compare_symbols (const void *ap, const void *bp)
2548{
2549 const asymbol *a = * (const asymbol **) ap;
2550 const asymbol *b = * (const asymbol **) bp;
2551
2552 if ((a->flags & BSF_SECTION_SYM) == 0 && (b->flags & BSF_SECTION_SYM))
2553 return -1;
2554 if ((a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM) == 0)
2555 return 1;
2556
2557 if (a->section == synthetic_opd && b->section != synthetic_opd)
2558 return -1;
2559 if (a->section != synthetic_opd && b->section == synthetic_opd)
2560 return 1;
2561
2562 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2563 == (SEC_CODE | SEC_ALLOC)
2564 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2565 != (SEC_CODE | SEC_ALLOC))
2566 return -1;
2567
2568 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2569 != (SEC_CODE | SEC_ALLOC)
2570 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2571 == (SEC_CODE | SEC_ALLOC))
2572 return 1;
2573
2574 if (synthetic_relocatable)
2575 {
2576 if (a->section->id < b->section->id)
2577 return -1;
2578
2579 if (a->section->id > b->section->id)
2580 return 1;
2581 }
2582
2583 if (a->value + a->section->vma < b->value + b->section->vma)
2584 return -1;
2585
2586 if (a->value + a->section->vma > b->value + b->section->vma)
2587 return 1;
2588
2589 return 0;
2590}
2591
2592/* Helper routine for ppc64_elf_get_synthetic_symtab. */
2593
2594static int
2595compare_relocs (const void *ap, const void *bp)
2596{
2597 const arelent *a = * (const arelent **) ap;
2598 const arelent *b = * (const arelent **) bp;
2599
2600 if (a->address < b->address)
2601 return -1;
2602
2603 if (a->address > b->address)
2604 return 1;
2605
2606 return 0;
2607}
2608
2609/* Create synthetic symbols. */
2610
2611static long
2612ppc64_elf_get_synthetic_symtab (bfd *abfd, asymbol **relsyms, asymbol **ret)
2613{
2614 asymbol *s;
2615 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2616 arelent **relocs, **r;
2617 long count, i;
2618 size_t size;
2619 char *names;
2620 asymbol **syms = NULL;
2621 long symcount = 0, opdsymcount, relcount;
2622 asection *relopd, *opd;
2623 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
2624
2625 *ret = NULL;
2626
2627 opd = bfd_get_section_by_name (abfd, ".opd");
2628 if (opd == NULL)
2629 return 0;
2630
2631 if ((bfd_get_file_flags (abfd) & HAS_SYMS))
2632 {
2633 long storage;
2634 storage = bfd_get_symtab_upper_bound (abfd);
2635 if (storage < 0)
2636 return 0;
2637
2638 if (storage)
2639 {
2640 syms = bfd_malloc (storage);
2641 if (syms == NULL)
2642 return 0;
2643 }
2644
2645 symcount = bfd_canonicalize_symtab (abfd, syms);
2646 if (symcount < 0)
2647 {
2648 free (syms);
2649 return 0;
2650 }
2651
2652 if (symcount == 0)
2653 {
2654 free (syms);
2655 syms = NULL;
2656 }
2657 }
2658
2659 if (symcount == 0)
2660 {
2661 long storage;
2662
2663 storage = bfd_get_dynamic_symtab_upper_bound (abfd);
2664 if (storage < 0)
2665 return 0;
2666
2667 if (storage)
2668 {
2669 syms = bfd_malloc (storage);
2670 if (syms == NULL)
2671 return 0;
2672 }
2673
2674 symcount = bfd_canonicalize_dynamic_symtab (abfd, syms);
2675 if (symcount < 0)
2676 {
2677 free (syms);
2678 return 0;
2679 }
2680 }
2681
2682 synthetic_opd = opd;
2683 synthetic_relocatable = relocatable;
2684 qsort (syms, symcount, sizeof (asymbol *), compare_symbols);
2685
2686 opdsymcount = symcount;
2687 for (i = 0; i < symcount; ++i)
2688 {
2689 if (syms[i]->flags & BSF_SECTION_SYM)
2690 {
2691 if (opdsymcount == symcount)
2692 opdsymcount = i;
2693 symcount = i;
2694 break;
2695 }
2696
2697 if (syms[i]->section == opd)
2698 continue;
2699
2700 if (opdsymcount == symcount)
2701 opdsymcount = i;
2702
2703 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2704 != (SEC_CODE | SEC_ALLOC))
2705 {
2706 symcount = i;
2707 break;
2708 }
2709 }
2710
2711 if (opdsymcount == 0)
2712 {
2713 free (syms);
2714 return 0;
2715 }
2716
2717 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2718 if (! relocatable)
2719 {
2720 relopd = bfd_get_section_by_name (abfd, ".rela.opd");
2721 if (relopd == NULL)
2722 {
2723 relopd = bfd_get_section_by_name (abfd, ".rela.dyn");
2724 if (relopd == NULL)
2725 {
2726 free (syms);
2727 return 0;
2728 }
2729 }
2730 relcount = relopd->size / 24;
2731
2732 if (! relcount
2733 || ! (*slurp_relocs) (abfd, relopd, relsyms, TRUE))
2734 {
2735 free (syms);
2736 return 0;
2737 }
2738 }
2739 else
2740 {
2741 relopd = opd;
2742 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
2743
2744 if (! relcount
2745 || ! (*slurp_relocs) (abfd, relopd, relsyms, FALSE))
2746 {
2747 free (syms);
2748 return 0;
2749 }
2750 }
2751
2752 relocs = bfd_malloc (relcount * sizeof (arelent **));
2753 if (relocs == NULL)
2754 {
2755 free (syms);
2756 return 0;
2757 }
2758
2759 for (i = 0; i < relcount; ++i)
2760 relocs[i] = &relopd->relocation[i];
2761
2762 qsort (relocs, relcount, sizeof (*relocs), compare_relocs);
2763
2764 size = 0;
2765 count = 0;
2766 for (i = 0, r = relocs; i < opdsymcount; ++i)
2767 {
2768 long lo, hi, mid;
2769 asymbol *sym;
2770
2771 while (r < relocs + relcount
2772 && (*r)->address < syms[i]->value + opd->vma)
2773 ++r;
2774
2775 if (r == relocs + relcount)
2776 continue;
2777
2778 if ((*r)->address != syms[i]->value + opd->vma)
2779 continue;
2780
2781 if ((*r)->howto->type != (relocatable
2782 ? R_PPC64_ADDR64 : R_PPC64_RELATIVE))
2783 continue;
2784
2785 lo = opdsymcount;
2786 hi = symcount;
2787 sym = *((*r)->sym_ptr_ptr);
2788 if (relocatable)
2789 while (lo < hi)
2790 {
2791 mid = (lo + hi) >> 1;
2792 if (syms[mid]->section->id < sym->section->id)
2793 lo = mid + 1;
2794 else if (syms[mid]->section->id > sym->section->id)
2795 hi = mid;
2796 else if (syms[mid]->value < sym->value + (*r)->addend)
2797 lo = mid + 1;
2798 else if (syms[mid]->value > sym->value + (*r)->addend)
2799 hi = mid;
2800 else
2801 break;
2802 }
2803 else
2804 while (lo < hi)
2805 {
2806 mid = (lo + hi) >> 1;
2807 if (syms[mid]->value + syms[mid]->section->vma < (*r)->addend)
2808 lo = mid + 1;
2809 else if (syms[mid]->value + syms[mid]->section->vma > (*r)->addend)
2810 hi = mid;
2811 else
2812 break;
2813 }
2814
2815 if (lo >= hi)
2816 {
2817 ++count;
2818 size += sizeof (asymbol);
2819 size += strlen (syms[i]->name) + 1;
2820 }
2821 }
2822
2823 s = *ret = bfd_malloc (size);
2824 if (s == NULL)
2825 {
2826 free (syms);
2827 free (relocs);
2828 return 0;
2829 }
2830
2831 names = (char *) (s + count);
2832
2833 for (i = 0, r = relocs; i < opdsymcount; ++i)
2834 {
2835 long lo, hi, mid;
2836 asymbol *sym;
2837
2838 while (r < relocs + relcount
2839 && (*r)->address < syms[i]->value + opd->vma)
2840 ++r;
2841
2842 if (r == relocs + relcount)
2843 continue;
2844
2845 if ((*r)->address != syms[i]->value + opd->vma)
2846 continue;
2847
2848 if ((*r)->howto->type != (relocatable
2849 ? R_PPC64_ADDR64 : R_PPC64_RELATIVE))
2850 continue;
2851
2852 lo = opdsymcount;
2853 hi = symcount;
2854 sym = *((*r)->sym_ptr_ptr);
2855 if (relocatable)
2856 while (lo < hi)
2857 {
2858 mid = (lo + hi) >> 1;
2859 if (syms[mid]->section->id < sym->section->id)
2860 lo = mid + 1;
2861 else if (syms[mid]->section->id > sym->section->id)
2862 hi = mid;
2863 else if (syms[mid]->value < sym->value + (*r)->addend)
2864 lo = mid + 1;
2865 else if (syms[mid]->value > sym->value + (*r)->addend)
2866 hi = mid;
2867 else
2868 break;
2869 }
2870 else
2871 while (lo < hi)
2872 {
2873 mid = (lo + hi) >> 1;
2874 if (syms[mid]->value + syms[mid]->section->vma < (*r)->addend)
2875 lo = mid + 1;
2876 else if (syms[mid]->value + syms[mid]->section->vma > (*r)->addend)
2877 hi = mid;
2878 else
2879 break;
2880 }
2881
2882 if (lo >= hi)
2883 {
2884 size_t len;
2885
2886 *s = *syms[i];
2887
2888 if (! relocatable)
2889 {
2890 asection *sec;
2891
2892 s->section = &bfd_abs_section;
2893 for (sec = abfd->sections; sec; sec = sec->next)
2894 if ((sec->flags & (SEC_ALLOC | SEC_CODE))
2895 == (SEC_ALLOC | SEC_CODE)
2896 && (*r)->addend >= sec->vma
2897 && (*r)->addend < sec->vma + sec->size)
2898 {
2899 s->section = sec;
2900 break;
2901 }
2902 s->value = (*r)->addend - sec->vma;
2903 }
2904 else
2905 {
2906 s->section = sym->section;
2907 s->value = sym->value + (*r)->addend;
2908 }
2909 s->name = names;
2910 len = strlen (syms[i]->name);
2911 memcpy (names, syms[i]->name, len + 1);
2912 names += len + 1;
2913 s++;
2914 }
2915 }
2916
2917 free (syms);
2918 free (relocs);
2919 return count;
2920}
2921
5bd4f169 2922\f
65f38f15
AM		 2923/* The following functions are specific to the ELF linker, while
2924 functions above are used generally. Those named ppc64_elf_* are
2925 called by the main ELF linker code. They appear in this file more
2926 or less in the order in which they are called. eg.
2927 ppc64_elf_check_relocs is called early in the link process,
2928 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 2929 called.
2930
2931 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2932 functions have both a function code symbol and a function descriptor
2933 symbol. A call to foo in a relocatable object file looks like:
2934
2935 . .text
2936 . x:
2937 . bl .foo
2938 . nop
2939
2940 The function definition in another object file might be:
2941
2942 . .section .opd
2943 . foo: .quad .foo
2944 . .quad .TOC.@tocbase
2945 . .quad 0
2946 .
2947 . .text
2948 . .foo: blr
2949
2950 When the linker resolves the call during a static link, the branch
2951 unsurprisingly just goes to .foo and the .opd information is unused.
2952 If the function definition is in a shared library, things are a little
2953 different: The call goes via a plt call stub, the opd information gets
2954 copied to the plt, and the linker patches the nop.
2955
2956 . x:
2957 . bl .foo_stub
2958 . ld 2,40(1)
2959 .
2960 .
2961 . .foo_stub:
2962 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2963 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM		 2964 . std 2,40(1) # this is the general idea
2965 . ld 11,0(12)
2966 . ld 2,8(12)
2967 . mtctr 11
2968 . ld 11,16(12)
2969 . bctr
2970 .
2971 . .section .plt
2972 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2973
2974 The "reloc ()" notation is supposed to indicate that the linker emits
2975 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2976 copying.
2977
2978 What are the difficulties here? Well, firstly, the relocations
2979 examined by the linker in check_relocs are against the function code
2980 sym .foo, while the dynamic relocation in the plt is emitted against
2981 the function descriptor symbol, foo. Somewhere along the line, we need
2982 to carefully copy dynamic link information from one symbol to the other.
2983 Secondly, the generic part of the elf linker will make .foo a dynamic
2984 symbol as is normal for most other backends. We need foo dynamic
2985 instead, at least for an application final link. However, when
2986 creating a shared library containing foo, we need to have both symbols
2987 dynamic so that references to .foo are satisfied during the early
2988 stages of linking. Otherwise the linker might decide to pull in a
8387904d
AM		 2989 definition from some other object, eg. a static library.
2990
2991 Update: As of August 2004, we support a new convention. Function
2992 calls may use the function descriptor symbol, ie. "bl foo". This
2993 behaves exactly as "bl .foo". */
65f38f15
AM		 2994
2995/* The linker needs to keep track of the number of relocs that it
2996 decides to copy as dynamic relocs in check_relocs for each symbol.
2997 This is so that it can later discard them if they are found to be
2998 unnecessary. We store the information in a field extending the
2999 regular ELF linker hash table. */
3000
3001struct ppc_dyn_relocs
3002{
3003 struct ppc_dyn_relocs *next;
3004
3005 /* The input section of the reloc. */
3006 asection *sec;
3007
3008 /* Total number of relocs copied for the input section. */
3009 bfd_size_type count;
3010
3011 /* Number of pc-relative relocs copied for the input section. */
3012 bfd_size_type pc_count;
3013};
3014
411e1bfb
AM		 3015/* Track GOT entries needed for a given symbol. We might need more
3016 than one got entry per symbol. */
3017struct got_entry
3018{
3019 struct got_entry *next;
3020
e7b938ca 3021 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM		 3022 bfd_vma addend;
3023
e717da7e
AM		 3024 /* Unlike other ELF targets, we use separate GOT entries for the same
3025 symbol referenced from different input files. This is to support
3026 automatic multiple TOC/GOT sections, where the TOC base can vary
3027 from one input file to another.
3028
3029 Point to the BFD owning this GOT entry. */
3030 bfd *owner;
3031
3032 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
3033 TLS_TPREL or TLS_DTPREL for tls entries. */
3034 char tls_type;
3035
e7b938ca 3036 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM		 3037 union
3038 {
3039 bfd_signed_vma refcount;
3040 bfd_vma offset;
3041 } got;
411e1bfb
AM		 3042};
3043
3044/* The same for PLT. */
3045struct plt_entry
3046{
3047 struct plt_entry *next;
3048
3049 bfd_vma addend;
3050
3051 union
3052 {
3053 bfd_signed_vma refcount;
3054 bfd_vma offset;
3055 } plt;
3056};
3057
65f38f15 3058/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM		 3059 selects those that must be copied when linking a shared library,
3060 even when the symbol is local. */
65f38f15 3061
411e1bfb 3062#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM		 3063 ((RTYPE) != R_PPC64_REL32 \
3064 && (RTYPE) != R_PPC64_REL64 \
04c9666a 3065 && (RTYPE) != R_PPC64_REL30)
65f38f15 3066
f4656909
AM		 3067/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3068 copying dynamic variables from a shared lib into an app's dynbss
3069 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 3070 shared lib. With code that gcc generates, it's vital that this be
3071 enabled; In the PowerPC64 ABI, the address of a function is actually
3072 the address of a function descriptor, which resides in the .opd
3073 section. gcc uses the descriptor directly rather than going via the
3074 GOT as some other ABI's do, which means that initialized function
3075 pointers must reference the descriptor. Thus, a function pointer
3076 initialized to the address of a function in a shared library will
3077 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 3078 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM		 3079 presents a problem as a plt entry for that function is also
3080 initialized from the function descriptor symbol and the copy reloc
3081 may not be initialized first. */
a23b6845 3082#define ELIMINATE_COPY_RELOCS 1
f4656909 3083
721956f4
AM		 3084/* Section name for stubs is the associated section name plus this
3085 string. */
3086#define STUB_SUFFIX ".stub"
3087
3088/* Linker stubs.
3089 ppc_stub_long_branch:
3090 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3091 destination, but a 24 bit branch in a stub section will reach.
3092 . b dest
3093
3094 ppc_stub_plt_branch:
3095 Similar to the above, but a 24 bit branch in the stub section won't
3096 reach its destination.
87e226ce
AM		 3097 . addis %r12,%r2,xxx@toc@ha
3098 . ld %r11,xxx@toc@l(%r12)
721956f4
AM		 3099 . mtctr %r11
3100 . bctr
3101
3102 ppc_stub_plt_call:
2c66dc6c
AM		 3103 Used to call a function in a shared library. If it so happens that
3104 the plt entry referenced crosses a 64k boundary, then an extra
3105 "addis %r12,%r12,1" will be inserted before the load at xxx+8 or
3106 xxx+16 as appropriate.
87e226ce 3107 . addis %r12,%r2,xxx@toc@ha
721956f4 3108 . std %r2,40(%r1)
87e226ce
AM		 3109 . ld %r11,xxx+0@toc@l(%r12)
3110 . ld %r2,xxx+8@toc@l(%r12)
721956f4 3111 . mtctr %r11
87e226ce 3112 . ld %r11,xxx+16@toc@l(%r12)
721956f4 3113 . bctr
ad8e1ba5
AM		 3114
3115 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3116 code to adjust the value and save r2 to support multiple toc sections.
3117 A ppc_stub_long_branch with an r2 offset looks like:
3118 . std %r2,40(%r1)
3119 . addis %r2,%r2,off@ha
3120 . addi %r2,%r2,off@l
3121 . b dest
3122
3123 A ppc_stub_plt_branch with an r2 offset looks like:
3124 . std %r2,40(%r1)
3125 . addis %r12,%r2,xxx@toc@ha
3126 . ld %r11,xxx@toc@l(%r12)
3127 . addis %r2,%r2,off@ha
3128 . addi %r2,%r2,off@l
3129 . mtctr %r11
3130 . bctr
721956f4
AM		 3131*/
3132
3133enum ppc_stub_type {
3134 ppc_stub_none,
3135 ppc_stub_long_branch,
ad8e1ba5 3136 ppc_stub_long_branch_r2off,
721956f4 3137 ppc_stub_plt_branch,
ad8e1ba5 3138 ppc_stub_plt_branch_r2off,
721956f4
AM		 3139 ppc_stub_plt_call
3140};
3141
3142struct ppc_stub_hash_entry {
3143
3144 /* Base hash table entry structure. */
3145 struct bfd_hash_entry root;
3146
ad8e1ba5
AM		 3147 enum ppc_stub_type stub_type;
3148
721956f4
AM		 3149 /* The stub section. */
3150 asection *stub_sec;
3151
3152 /* Offset within stub_sec of the beginning of this stub. */
3153 bfd_vma stub_offset;
3154
3155 /* Given the symbol's value and its section we can determine its final
3156 value when building the stubs (so the stub knows where to jump. */
3157 bfd_vma target_value;
3158 asection *target_section;
3159
721956f4
AM		 3160 /* The symbol table entry, if any, that this was derived from. */
3161 struct ppc_link_hash_entry *h;
3162
411e1bfb
AM		 3163 /* And the reloc addend that this was derived from. */
3164 bfd_vma addend;
3165
721956f4
AM		 3166 /* Where this stub is being called from, or, in the case of combined
3167 stub sections, the first input section in the group. */
3168 asection *id_sec;
3169};
3170
3171struct ppc_branch_hash_entry {
3172
3173 /* Base hash table entry structure. */
3174 struct bfd_hash_entry root;
3175
3176 /* Offset within .branch_lt. */
3177 unsigned int offset;
3178
3179 /* Generation marker. */
3180 unsigned int iter;
3181};
65f38f15
AM		 3182
3183struct ppc_link_hash_entry
3184{
3185 struct elf_link_hash_entry elf;
3186
721956f4
AM		 3187 /* A pointer to the most recently used stub hash entry against this
3188 symbol. */
3189 struct ppc_stub_hash_entry *stub_cache;
3190
65f38f15
AM		 3191 /* Track dynamic relocs copied for this symbol. */
3192 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 3193
721956f4 3194 /* Link between function code and descriptor symbols. */
34814b9f 3195 struct ppc_link_hash_entry *oh;
721956f4 3196
e86ce104
AM		 3197 /* Flag function code and descriptor symbols. */
3198 unsigned int is_func:1;
3199 unsigned int is_func_descriptor:1;
411e1bfb 3200
8843416a
AM		 3201 /* Whether global opd sym has been adjusted or not.
3202 After ppc64_elf_edit_opd has run, this flag should be set for all
3203 globals defined in any opd section. */
754021d0
AM		 3204 unsigned int adjust_done:1;
3205
99877b66
AM		 3206 /* Set if we twiddled this symbol to weak at some stage. */
3207 unsigned int was_undefined:1;
3208
411e1bfb 3209 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 3210 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3211 corresponding relocs are encountered during check_relocs.
3212 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3213 indicate the corresponding GOT entry type is not needed.
3214 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3215 a TPREL one. We use a separate flag rather than setting TPREL
3216 just for convenience in distinguishing the two cases. */
3217#define TLS_GD 1 /* GD reloc. */
3218#define TLS_LD 2 /* LD reloc. */
3219#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3220#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3221#define TLS_TLS 16 /* Any TLS reloc. */
3222#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3223#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3224 char tls_mask;
65f38f15
AM		 3225};
3226
3227/* ppc64 ELF linker hash table. */
3228
3229struct ppc_link_hash_table
3230{
3231 struct elf_link_hash_table elf;
3232
721956f4
AM		 3233 /* The stub hash table. */
3234 struct bfd_hash_table stub_hash_table;
3235
3236 /* Another hash table for plt_branch stubs. */
3237 struct bfd_hash_table branch_hash_table;
3238
3239 /* Linker stub bfd. */
3240 bfd *stub_bfd;
3241
3242 /* Linker call-backs. */
4ce794b7
AM		 3243 asection * (*add_stub_section) (const char *, asection *);
3244 void (*layout_sections_again) (void);
721956f4
AM		 3245
3246 /* Array to keep track of which stub sections have been created, and
3247 information on stub grouping. */
3248 struct map_stub {
3249 /* This is the section to which stubs in the group will be attached. */
3250 asection *link_sec;
3251 /* The stub section. */
3252 asection *stub_sec;
ad8e1ba5
AM		 3253 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3254 bfd_vma toc_off;
721956f4
AM		 3255 } *stub_group;
3256
ad8e1ba5
AM		 3257 /* Temp used when calculating TOC pointers. */
3258 bfd_vma toc_curr;
3259
8f3bab57
AM		 3260 /* Highest input section id. */
3261 int top_id;
3262
734b6cf9
AM		 3263 /* Highest output section index. */
3264 int top_index;
3265
3266 /* List of input sections for each output section. */
3267 asection **input_list;
721956f4 3268
65f38f15 3269 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 3270 asection *got;
4ce794b7
AM		 3271 asection *plt;
3272 asection *relplt;
3273 asection *dynbss;
3274 asection *relbss;
3275 asection *glink;
82bd7b59 3276 asection *sfpr;
4ce794b7
AM		 3277 asection *brlt;
3278 asection *relbrlt;
ec338859 3279
8387904d
AM		 3280 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3281 struct ppc_link_hash_entry *tls_get_addr;
3282 struct ppc_link_hash_entry *tls_get_addr_fd;
411e1bfb 3283
9b5ecbd0
AM		 3284 /* Statistics. */
3285 unsigned long stub_count[ppc_stub_plt_call];
3286
ad8e1ba5 3287 /* Set if we should emit symbols for stubs. */
99877b66 3288 unsigned int emit_stub_syms:1;
ad8e1ba5 3289
5d1634d7 3290 /* Set on error. */
99877b66 3291 unsigned int stub_error:1;
721956f4
AM		 3292
3293 /* Flag set when small branches are detected. Used to
3294 select suitable defaults for the stub group size. */
99877b66
AM		 3295 unsigned int has_14bit_branch:1;
3296
3297 /* Temp used by ppc64_elf_check_directives. */
3298 unsigned int twiddled_syms:1;
721956f4
AM		 3299
3300 /* Incremented every time we size stubs. */
3301 unsigned int stub_iteration;
5d1634d7 3302
ec338859
AM		 3303 /* Small local sym to section mapping cache. */
3304 struct sym_sec_cache sym_sec;
65f38f15
AM		 3305};
3306
3307/* Get the ppc64 ELF linker hash table from a link_info structure. */
3308
3309#define ppc_hash_table(p) \
3310 ((struct ppc_link_hash_table *) ((p)->hash))
3311
721956f4
AM		 3312#define ppc_stub_hash_lookup(table, string, create, copy) \
3313 ((struct ppc_stub_hash_entry *) \
3314 bfd_hash_lookup ((table), (string), (create), (copy)))
3315
3316#define ppc_branch_hash_lookup(table, string, create, copy) \
3317 ((struct ppc_branch_hash_entry *) \
3318 bfd_hash_lookup ((table), (string), (create), (copy)))
3319
3320/* Create an entry in the stub hash table. */
3321
3322static struct bfd_hash_entry *
4ce794b7
AM		 3323stub_hash_newfunc (struct bfd_hash_entry *entry,
3324 struct bfd_hash_table *table,
3325 const char *string)
721956f4
AM		 3326{
3327 /* Allocate the structure if it has not already been allocated by a
3328 subclass. */
3329 if (entry == NULL)
3330 {
3331 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
3332 if (entry == NULL)
3333 return entry;
3334 }
3335
3336 /* Call the allocation method of the superclass. */
3337 entry = bfd_hash_newfunc (entry, table, string);
3338 if (entry != NULL)
3339 {
3340 struct ppc_stub_hash_entry *eh;
3341
3342 /* Initialize the local fields. */
3343 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 3344 eh->stub_type = ppc_stub_none;
721956f4
AM		 3345 eh->stub_sec = NULL;
3346 eh->stub_offset = 0;
3347 eh->target_value = 0;
3348 eh->target_section = NULL;
721956f4
AM		 3349 eh->h = NULL;
3350 eh->id_sec = NULL;
3351 }
3352
3353 return entry;
3354}
3355
3356/* Create an entry in the branch hash table. */
3357
3358static struct bfd_hash_entry *
4ce794b7
AM		 3359branch_hash_newfunc (struct bfd_hash_entry *entry,
3360 struct bfd_hash_table *table,
3361 const char *string)
721956f4
AM		 3362{
3363 /* Allocate the structure if it has not already been allocated by a
3364 subclass. */
3365 if (entry == NULL)
3366 {
3367 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
3368 if (entry == NULL)
3369 return entry;
3370 }
3371
3372 /* Call the allocation method of the superclass. */
3373 entry = bfd_hash_newfunc (entry, table, string);
3374 if (entry != NULL)
3375 {
3376 struct ppc_branch_hash_entry *eh;
3377
3378 /* Initialize the local fields. */
3379 eh = (struct ppc_branch_hash_entry *) entry;
3380 eh->offset = 0;
3381 eh->iter = 0;
3382 }
3383
3384 return entry;
3385}
3386
65f38f15
AM		 3387/* Create an entry in a ppc64 ELF linker hash table. */
3388
3389static struct bfd_hash_entry *
4ce794b7
AM		 3390link_hash_newfunc (struct bfd_hash_entry *entry,
3391 struct bfd_hash_table *table,
3392 const char *string)
65f38f15
AM		 3393{
3394 /* Allocate the structure if it has not already been allocated by a
3395 subclass. */
3396 if (entry == NULL)
3397 {
3398 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
3399 if (entry == NULL)
3400 return entry;
3401 }
3402
3403 /* Call the allocation method of the superclass. */
3404 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3405 if (entry != NULL)
3406 {
3407 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
3408
721956f4 3409 eh->stub_cache = NULL;
65f38f15 3410 eh->dyn_relocs = NULL;
721956f4 3411 eh->oh = NULL;
e86ce104
AM		 3412 eh->is_func = 0;
3413 eh->is_func_descriptor = 0;
754021d0 3414 eh->adjust_done = 0;
99877b66 3415 eh->was_undefined = 0;
e7b938ca 3416 eh->tls_mask = 0;
65f38f15
AM		 3417 }
3418
3419 return entry;
3420}
3421
3422/* Create a ppc64 ELF linker hash table. */
3423
3424static struct bfd_link_hash_table *
4ce794b7 3425ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 3426{
3427 struct ppc_link_hash_table *htab;
3428 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
3429
4ce794b7 3430 htab = bfd_zmalloc (amt);
65f38f15
AM		 3431 if (htab == NULL)
3432 return NULL;
3433
3434 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
3435 {
e2d34d7d 3436 free (htab);
65f38f15
AM		 3437 return NULL;
3438 }
3439
721956f4
AM		 3440 /* Init the stub hash table too. */
3441 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
3442 return NULL;
3443
3444 /* And the branch hash table. */
3445 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
3446 return NULL;
3447
3254fd24
AM		 3448 /* Initializing two fields of the union is just cosmetic. We really
3449 only care about glist, but when compiled on a 32-bit host the
3450 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3451 debugger inspection of these fields look nicer. */
3452 htab->elf.init_refcount.refcount = 0;
3453 htab->elf.init_refcount.glist = NULL;
3454 htab->elf.init_offset.offset = 0;
3455 htab->elf.init_offset.glist = NULL;
3456
65f38f15
AM		 3457 return &htab->elf.root;
3458}
3459
721956f4
AM		 3460/* Free the derived linker hash table. */
3461
3462static void
4ce794b7 3463ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM		 3464{
3465 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3466
3467 bfd_hash_table_free (&ret->stub_hash_table);
3468 bfd_hash_table_free (&ret->branch_hash_table);
3469 _bfd_generic_link_hash_table_free (hash);
3470}
3471
e717da7e
AM		 3472/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3473
3474void
3475ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3476{
3477 struct ppc_link_hash_table *htab;
3478
3479 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3480
3481/* Always hook our dynamic sections into the first bfd, which is the
3482 linker created stub bfd. This ensures that the GOT header is at
3483 the start of the output TOC section. */
3484 htab = ppc_hash_table (info);
3485 htab->stub_bfd = abfd;
3486 htab->elf.dynobj = abfd;
3487}
3488
721956f4
AM		 3489/* Build a name for an entry in the stub hash table. */
3490
3491static char *
4ce794b7
AM		 3492ppc_stub_name (const asection *input_section,
3493 const asection *sym_sec,
3494 const struct ppc_link_hash_entry *h,
3495 const Elf_Internal_Rela *rel)
721956f4
AM		 3496{
3497 char *stub_name;
3498 bfd_size_type len;
3499
3500 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3501 offsets from a sym as a branch target? In fact, we could
3502 probably assume the addend is always zero. */
3503 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3504
3505 if (h)
3506 {
3507 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3508 stub_name = bfd_malloc (len);
3509 if (stub_name != NULL)
3510 {
97b639ba 3511 sprintf (stub_name, "%08x.%s+%x",
721956f4
AM		 3512 input_section->id & 0xffffffff,
3513 h->elf.root.root.string,
3514 (int) rel->r_addend & 0xffffffff);
3515 }
3516 }
3517 else
3518 {
ad8e1ba5 3519 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4
AM		 3520 stub_name = bfd_malloc (len);
3521 if (stub_name != NULL)
3522 {
97b639ba 3523 sprintf (stub_name, "%08x.%x:%x+%x",
721956f4
AM		 3524 input_section->id & 0xffffffff,
3525 sym_sec->id & 0xffffffff,
3526 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3527 (int) rel->r_addend & 0xffffffff);
3528 }
3529 }
3530 return stub_name;
3531}
3532
3533/* Look up an entry in the stub hash. Stub entries are cached because
3534 creating the stub name takes a bit of time. */
3535
3536static struct ppc_stub_hash_entry *
4ce794b7
AM		 3537ppc_get_stub_entry (const asection *input_section,
3538 const asection *sym_sec,
3539 struct elf_link_hash_entry *hash,
3540 const Elf_Internal_Rela *rel,
3541 struct ppc_link_hash_table *htab)
721956f4
AM		 3542{
3543 struct ppc_stub_hash_entry *stub_entry;
3544 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3545 const asection *id_sec;
3546
3547 /* If this input section is part of a group of sections sharing one
3548 stub section, then use the id of the first section in the group.
3549 Stub names need to include a section id, as there may well be
3550 more than one stub used to reach say, printf, and we need to
3551 distinguish between them. */
3552 id_sec = htab->stub_group[input_section->id].link_sec;
3553
3554 if (h != NULL && h->stub_cache != NULL
3555 && h->stub_cache->h == h
3556 && h->stub_cache->id_sec == id_sec)
3557 {
3558 stub_entry = h->stub_cache;
3559 }
3560 else
3561 {
3562 char *stub_name;
3563
3564 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3565 if (stub_name == NULL)
3566 return NULL;
3567
3568 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3569 stub_name, FALSE, FALSE);
721956f4
AM		 3570 if (h != NULL)
3571 h->stub_cache = stub_entry;
3572
3573 free (stub_name);
3574 }
3575
3576 return stub_entry;
3577}
3578
3579/* Add a new stub entry to the stub hash. Not all fields of the new
3580 stub entry are initialised. */
3581
3582static struct ppc_stub_hash_entry *
4ce794b7
AM		 3583ppc_add_stub (const char *stub_name,
3584 asection *section,
3585 struct ppc_link_hash_table *htab)
721956f4
AM		 3586{
3587 asection *link_sec;
3588 asection *stub_sec;
3589 struct ppc_stub_hash_entry *stub_entry;
3590
3591 link_sec = htab->stub_group[section->id].link_sec;
3592 stub_sec = htab->stub_group[section->id].stub_sec;
3593 if (stub_sec == NULL)
3594 {
3595 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3596 if (stub_sec == NULL)
3597 {
d4c88bbb 3598 size_t namelen;
721956f4
AM		 3599 bfd_size_type len;
3600 char *s_name;
3601
d4c88bbb
AM		 3602 namelen = strlen (link_sec->name);
3603 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM		 3604 s_name = bfd_alloc (htab->stub_bfd, len);
3605 if (s_name == NULL)
3606 return NULL;
3607
d4c88bbb
AM		 3608 memcpy (s_name, link_sec->name, namelen);
3609 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM		 3610 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3611 if (stub_sec == NULL)
3612 return NULL;
3613 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3614 }
3615 htab->stub_group[section->id].stub_sec = stub_sec;
3616 }
3617
3618 /* Enter this entry into the linker stub hash table. */
3619 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3620 TRUE, FALSE);
721956f4
AM		 3621 if (stub_entry == NULL)
3622 {
d003868e
AM		 3623 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
3624 section->owner, stub_name);
721956f4
AM		 3625 return NULL;
3626 }
3627
3628 stub_entry->stub_sec = stub_sec;
3629 stub_entry->stub_offset = 0;
3630 stub_entry->id_sec = link_sec;
3631 return stub_entry;
3632}
3633
82bd7b59
AM		 3634/* Create sections for linker generated code. */
3635
b34976b6 3636static bfd_boolean
4ce794b7 3637create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM		 3638{
3639 struct ppc_link_hash_table *htab;
3640 flagword flags;
3641
3642 htab = ppc_hash_table (info);
3643
3644 /* Create .sfpr for code to save and restore fp regs. */
3645 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3646 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
721956f4 3647 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
82bd7b59
AM		 3648 if (htab->sfpr == NULL
3649 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3650 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3651 return FALSE;
82bd7b59 3652
721956f4 3653 /* Create .glink for lazy dynamic linking support. */
4ce794b7
AM		 3654 htab->glink = bfd_make_section_anyway (dynobj, ".glink");
3655 if (htab->glink == NULL
3656 || ! bfd_set_section_flags (dynobj, htab->glink, flags)
3657 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
b34976b6 3658 return FALSE;
82bd7b59 3659
721956f4
AM		 3660 /* Create .branch_lt for plt_branch stubs. */
3661 flags = (SEC_ALLOC | SEC_LOAD
3662 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3663 htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3664 if (htab->brlt == NULL
3665 || ! bfd_set_section_flags (dynobj, htab->brlt, flags)
3666 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3667 return FALSE;
721956f4
AM		 3668
3669 if (info->shared)
3670 {
3671 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3672 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3673 htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
3674 if (!htab->relbrlt
3675 || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags)
3676 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
b34976b6 3677 return FALSE;
721956f4 3678 }
b34976b6 3679 return TRUE;
82bd7b59
AM		 3680}
3681
e717da7e
AM		 3682/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3683 not already done. */
65f38f15 3684
b34976b6 3685static bfd_boolean
e717da7e 3686create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3687{
e717da7e
AM		 3688 asection *got, *relgot;
3689 flagword flags;
3690 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3691
4ce794b7 3692 if (!htab->got)
e717da7e
AM		 3693 {
3694 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3695 return FALSE;
3696
3697 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3698 if (!htab->got)
3699 abort ();
3700 }
3701
3702 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3703 | SEC_LINKER_CREATED);
3704
3705 got = bfd_make_section (abfd, ".got");
3706 if (!got
3707 || !bfd_set_section_flags (abfd, got, flags)
3708 || !bfd_set_section_alignment (abfd, got, 3))
3709 return FALSE;
65f38f15 3710
e717da7e
AM		 3711 relgot = bfd_make_section (abfd, ".rela.got");
3712 if (!relgot
3713 || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY)
3714 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3715 return FALSE;
e717da7e
AM		 3716
3717 ppc64_elf_tdata (abfd)->got = got;
3718 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3719 return TRUE;
65f38f15 3720}
5bd4f169 3721
82bd7b59 3722/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3723
b34976b6 3724static bfd_boolean
4ce794b7 3725ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3726{
65f38f15 3727 struct ppc_link_hash_table *htab;
5bd4f169 3728
65f38f15 3729 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3730 return FALSE;
65f38f15 3731
e717da7e
AM		 3732 htab = ppc_hash_table (info);
3733 if (!htab->got)
3734 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM		 3735 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3736 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3737 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3738 if (!info->shared)
4ce794b7 3739 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3740
e717da7e 3741 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3742 || (!info->shared && !htab->relbss))
65f38f15
AM		 3743 abort ();
3744
b34976b6 3745 return TRUE;
5bd4f169
AM		 3746}
3747
65f38f15
AM		 3748/* Copy the extra info we tack onto an elf_link_hash_entry. */
3749
3750static void
9c5bfbb7
AM		 3751ppc64_elf_copy_indirect_symbol
3752 (const struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3753 struct elf_link_hash_entry *dir,
3754 struct elf_link_hash_entry *ind)
65f38f15
AM		 3755{
3756 struct ppc_link_hash_entry *edir, *eind;
81848ca0 3757 flagword mask;
65f38f15
AM		 3758
3759 edir = (struct ppc_link_hash_entry *) dir;
3760 eind = (struct ppc_link_hash_entry *) ind;
3761
411e1bfb 3762 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3763 if (eind->dyn_relocs != NULL)
65f38f15 3764 {
bbd7ec4a
AM		 3765 if (edir->dyn_relocs != NULL)
3766 {
3767 struct ppc_dyn_relocs **pp;
3768 struct ppc_dyn_relocs *p;
3769
411e1bfb 3770 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM		 3771 abort ();
3772
3773 /* Add reloc counts against the weak sym to the strong sym
3774 list. Merge any entries against the same section. */
3775 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3776 {
3777 struct ppc_dyn_relocs *q;
3778
3779 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3780 if (q->sec == p->sec)
3781 {
3782 q->pc_count += p->pc_count;
3783 q->count += p->count;
3784 *pp = p->next;
3785 break;
3786 }
3787 if (q == NULL)
3788 pp = &p->next;
3789 }
3790 *pp = edir->dyn_relocs;
3791 }
3792
65f38f15
AM		 3793 edir->dyn_relocs = eind->dyn_relocs;
3794 eind->dyn_relocs = NULL;
3795 }
65f38f15 3796
6349e628
AM		 3797 edir->is_func |= eind->is_func;
3798 edir->is_func_descriptor |= eind->is_func_descriptor;
58ac9f71 3799 edir->tls_mask |= eind->tls_mask;
6349e628 3800
81848ca0 3801 mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR
3addb0a9
DJ		 3802 | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF
3803 | ELF_LINK_HASH_NEEDS_PLT);
81848ca0
AM		 3804 /* If called to transfer flags for a weakdef during processing
3805 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
3806 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3807 if (ELIMINATE_COPY_RELOCS
3808 && eind->elf.root.type != bfd_link_hash_indirect
3809 && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
3810 mask &= ~ELF_LINK_NON_GOT_REF;
3811
3812 edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask;
6349e628
AM		 3813
3814 /* If we were called to copy over info for a weak sym, that's all. */
3815 if (eind->elf.root.type != bfd_link_hash_indirect)
3816 return;
3817
81848ca0
AM		 3818 /* Copy over got entries that we may have already seen to the
3819 symbol which just became indirect. */
411e1bfb
AM		 3820 if (eind->elf.got.glist != NULL)
3821 {
3822 if (edir->elf.got.glist != NULL)
3823 {
3824 struct got_entry **entp;
3825 struct got_entry *ent;
3826
3827 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3828 {
3829 struct got_entry *dent;
3830
3831 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3832 if (dent->addend == ent->addend
e717da7e 3833 && dent->owner == ent->owner
411e1bfb
AM		 3834 && dent->tls_type == ent->tls_type)
3835 {
3836 dent->got.refcount += ent->got.refcount;
3837 *entp = ent->next;
3838 break;
3839 }
3840 if (dent == NULL)
3841 entp = &ent->next;
3842 }
3843 *entp = edir->elf.got.glist;
3844 }
3845
3846 edir->elf.got.glist = eind->elf.got.glist;
3847 eind->elf.got.glist = NULL;
3848 }
3849
3850 /* And plt entries. */
3851 if (eind->elf.plt.plist != NULL)
3852 {
3853 if (edir->elf.plt.plist != NULL)
3854 {
3855 struct plt_entry **entp;
3856 struct plt_entry *ent;
3857
3858 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3859 {
3860 struct plt_entry *dent;
3861
3862 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3863 if (dent->addend == ent->addend)
3864 {
3865 dent->plt.refcount += ent->plt.refcount;
3866 *entp = ent->next;
3867 break;
3868 }
3869 if (dent == NULL)
3870 entp = &ent->next;
3871 }
3872 *entp = edir->elf.plt.plist;
3873 }
3874
3875 edir->elf.plt.plist = eind->elf.plt.plist;
3876 eind->elf.plt.plist = NULL;
3877 }
3878
411e1bfb
AM		 3879 if (edir->elf.dynindx == -1)
3880 {
3881 edir->elf.dynindx = eind->elf.dynindx;
3882 edir->elf.dynstr_index = eind->elf.dynstr_index;
3883 eind->elf.dynindx = -1;
3884 eind->elf.dynstr_index = 0;
3885 }
3886 else
3887 BFD_ASSERT (eind->elf.dynindx == -1);
3888}
3889
8387904d
AM		 3890/* Find the function descriptor hash entry from the given function code
3891 hash entry FH. Link the entries via their OH fields. */
3892
3893static struct ppc_link_hash_entry *
3894get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
3895{
3896 struct ppc_link_hash_entry *fdh = fh->oh;
3897
3898 if (fdh == NULL)
3899 {
3900 const char *fd_name = fh->elf.root.root.string + 1;
3901
3902 fdh = (struct ppc_link_hash_entry *)
3903 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
3904 if (fdh != NULL)
3905 {
3906 fdh->is_func_descriptor = 1;
3907 fdh->oh = fh;
3908 fh->is_func = 1;
3909 fh->oh = fdh;
3910 }
3911 }
3912
3913 return fdh;
3914}
3915
3916/* Hacks to support old ABI code.
3917 When making function calls, old ABI code references function entry
3918 points (dot symbols), while new ABI code references the function
3919 descriptor symbol. We need to make any combination of reference and
3920 definition work together, without breaking archive linking.
3921
3922 For a defined function "foo" and an undefined call to "bar":
3923 An old object defines "foo" and ".foo", references ".bar" (possibly
3924 "bar" too).
3925 A new object defines "foo" and references "bar".
3926
3927 A new object thus has no problem with its undefined symbols being
3928 satisfied by definitions in an old object. On the other hand, the
3929 old object won't have ".bar" satisfied by a new object. */
3930
3931/* Fix function descriptor symbols defined in .opd sections to be
3932 function type. */
555cd476
AM		 3933
3934static bfd_boolean
3935ppc64_elf_add_symbol_hook (bfd *ibfd ATTRIBUTE_UNUSED,
3936 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3937 Elf_Internal_Sym *isym,
3938 const char **name ATTRIBUTE_UNUSED,
3939 flagword *flags ATTRIBUTE_UNUSED,
3940 asection **sec,
3941 bfd_vma *value ATTRIBUTE_UNUSED)
3942{
8843416a
AM		 3943 if (*sec != NULL
3944 && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
555cd476
AM		 3945 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
3946 return TRUE;
3947}
3948
8387904d
AM		 3949/* This function makes an old ABI object reference to ".bar" cause the
3950 inclusion of a new ABI object archive that defines "bar". */
3951
3952static struct elf_link_hash_entry *
3953ppc64_elf_archive_symbol_lookup (bfd *abfd,
3954 struct bfd_link_info *info,
3955 const char *name)
3956{
3957 struct elf_link_hash_entry *h;
3958 char *dot_name;
3959 size_t len;
3960
3961 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
3962 if (h != NULL)
3963 return h;
3964
3965 if (name[0] == '.')
3966 return h;
3967
3968 len = strlen (name);
3969 dot_name = bfd_alloc (abfd, len + 2);
3970 if (dot_name == NULL)
3971 return (struct elf_link_hash_entry *) 0 - 1;
3972 dot_name[0] = '.';
3973 memcpy (dot_name + 1, name, len + 1);
3974 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
3975 bfd_release (abfd, dot_name);
3976 return h;
3977}
3978
3979/* This function satisfies all old ABI object references to ".bar" if a
99877b66
AM		 3980 new ABI object defines "bar". Well, at least, undefined dot symbols
3981 are made weak. This stops later archive searches from including an
3982 object if we already have a function descriptor definition. It also
35b0ce59
AM		 3983 prevents the linker complaining about undefined symbols.
3984 We also check and correct mismatched symbol visibility here. The
3985 most restrictive visibility of the function descriptor and the
3986 function entry symbol is used. */
8387904d
AM		 3987
3988static bfd_boolean
3989add_symbol_adjust (struct elf_link_hash_entry *h, void *inf)
3990{
3991 struct bfd_link_info *info;
3992 struct ppc_link_hash_table *htab;
99877b66 3993 struct ppc_link_hash_entry *eh;
8387904d
AM		 3994 struct ppc_link_hash_entry *fdh;
3995
3996 if (h->root.type == bfd_link_hash_indirect)
3997 return TRUE;
3998
3999 if (h->root.type == bfd_link_hash_warning)
4000 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4001
35b0ce59 4002 if (h->root.root.string[0] != '.')
8387904d
AM		 4003 return TRUE;
4004
4005 info = inf;
4006 htab = ppc_hash_table (info);
99877b66
AM		 4007 eh = (struct ppc_link_hash_entry *) h;
4008 fdh = get_fdh (eh, htab);
8387904d
AM		 4009 if (fdh != NULL)
4010 {
35b0ce59
AM		 4011 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4012 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4013 if (entry_vis < descr_vis)
4014 fdh->elf.other += entry_vis - descr_vis;
4015 else if (entry_vis > descr_vis)
4016 eh->elf.other += descr_vis - entry_vis;
4017
4018 if (eh->elf.root.type == bfd_link_hash_undefined)
4019 {
4020 eh->elf.root.type = bfd_link_hash_undefweak;
4021 eh->was_undefined = 1;
4022 htab->twiddled_syms = 1;
4023 }
8387904d 4024 }
99877b66 4025
8387904d
AM		 4026 return TRUE;
4027}
4028
4029static bfd_boolean
4030ppc64_elf_check_directives (bfd *abfd ATTRIBUTE_UNUSED,
4031 struct bfd_link_info *info)
4032{
99877b66 4033 struct ppc_link_hash_table *htab;
35b0ce59
AM		 4034 extern const bfd_target bfd_elf64_powerpc_vec;
4035 extern const bfd_target bfd_elf64_powerpcle_vec;
99877b66
AM		 4036
4037 htab = ppc_hash_table (info);
35b0ce59
AM		 4038 if (htab->elf.root.creator != &bfd_elf64_powerpc_vec
4039 && htab->elf.root.creator != &bfd_elf64_powerpcle_vec)
4040 return TRUE;
4041
8387904d 4042 elf_link_hash_traverse (&htab->elf, add_symbol_adjust, info);
99877b66
AM		 4043
4044 /* We need to fix the undefs list for any syms we have twiddled to
4045 undef_weak. */
4046 if (htab->twiddled_syms)
4047 {
4048 struct bfd_link_hash_entry **pun;
4049
4050 pun = &htab->elf.root.undefs;
4051 while (*pun != NULL)
4052 {
4053 struct bfd_link_hash_entry *h = *pun;
4054
4055 if (h->type != bfd_link_hash_undefined
4056 && h->type != bfd_link_hash_common)
4057 {
4058 *pun = h->und_next;
4059 h->und_next = NULL;
4060 if (h == htab->elf.root.undefs_tail)
4061 {
4062 if (pun == &htab->elf.root.undefs)
4063 htab->elf.root.undefs_tail = NULL;
4064 else
4065 /* pun points at an und_next field. Go back to
4066 the start of the link_hash_entry. */
4067 htab->elf.root.undefs_tail = (struct bfd_link_hash_entry *)
4068 ((char *) pun - ((char *) &h->und_next - (char *) h));
4069 break;
4070 }
4071 }
4072 else
4073 pun = &h->und_next;
4074 }
4075
4076 htab->twiddled_syms = 0;
4077 }
8387904d
AM		 4078 return TRUE;
4079}
4080
411e1bfb 4081static bfd_boolean
4ce794b7
AM		 4082update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
4083 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 4084{
4085 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 4086 char *local_got_tls_masks;
411e1bfb
AM		 4087
4088 if (local_got_ents == NULL)
4089 {
4090 bfd_size_type size = symtab_hdr->sh_info;
4091
e7b938ca 4092 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 4093 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM		 4094 if (local_got_ents == NULL)
4095 return FALSE;
4096 elf_local_got_ents (abfd) = local_got_ents;
4097 }
4098
4099 if ((tls_type & TLS_EXPLICIT) == 0)
4100 {
4101 struct got_entry *ent;
4102
4103 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 4104 if (ent->addend == r_addend
4105 && ent->owner == abfd
4106 && ent->tls_type == tls_type)
411e1bfb
AM		 4107 break;
4108 if (ent == NULL)
4109 {
4110 bfd_size_type amt = sizeof (*ent);
4ce794b7 4111 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 4112 if (ent == NULL)
4113 return FALSE;
4114 ent->next = local_got_ents[r_symndx];
4115 ent->addend = r_addend;
e717da7e 4116 ent->owner = abfd;
411e1bfb
AM		 4117 ent->tls_type = tls_type;
4118 ent->got.refcount = 0;
4119 local_got_ents[r_symndx] = ent;
4120 }
4121 ent->got.refcount += 1;
4122 }
4123
e7b938ca
AM		 4124 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
4125 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 4126 return TRUE;
65f38f15
AM		 4127}
4128
411e1bfb 4129static bfd_boolean
4ce794b7 4130update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 4131{
411e1bfb 4132 struct plt_entry *ent;
1e2f5b6e 4133
411e1bfb
AM		 4134 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
4135 if (ent->addend == addend)
4136 break;
4137 if (ent == NULL)
1e2f5b6e 4138 {
411e1bfb 4139 bfd_size_type amt = sizeof (*ent);
4ce794b7 4140 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 4141 if (ent == NULL)
4142 return FALSE;
4143 ent->next = eh->elf.plt.plist;
4144 ent->addend = addend;
4145 ent->plt.refcount = 0;
4146 eh->elf.plt.plist = ent;
1e2f5b6e 4147 }
411e1bfb
AM		 4148 ent->plt.refcount += 1;
4149 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
4150 eh->is_func = 1;
b34976b6 4151 return TRUE;
1e2f5b6e
AM		 4152}
4153
5bd4f169 4154/* Look through the relocs for a section during the first phase, and
65f38f15 4155 calculate needed space in the global offset table, procedure
5d1634d7 4156 linkage table, and dynamic reloc sections. */
5bd4f169 4157
b34976b6 4158static bfd_boolean
4ce794b7
AM		 4159ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
4160 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4161{
65f38f15 4162 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4163 Elf_Internal_Shdr *symtab_hdr;
4164 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4165 const Elf_Internal_Rela *rel;
4166 const Elf_Internal_Rela *rel_end;
5bd4f169 4167 asection *sreloc;
1e2f5b6e 4168 asection **opd_sym_map;
5bd4f169 4169
1049f94e 4170 if (info->relocatable)
b34976b6 4171 return TRUE;
5bd4f169 4172
680a3378
AM		 4173 /* Don't do anything special with non-loaded, non-alloced sections.
4174 In particular, any relocs in such sections should not affect GOT
4175 and PLT reference counting (ie. we don't allow them to create GOT
4176 or PLT entries), there's no possibility or desire to optimize TLS
4177 relocs, and there's not much point in propagating relocs to shared
4178 libs that the dynamic linker won't relocate. */
4179 if ((sec->flags & SEC_ALLOC) == 0)
4180 return TRUE;
4181
65f38f15 4182 htab = ppc_hash_table (info);
5bd4f169 4183 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM		 4184
4185 sym_hashes = elf_sym_hashes (abfd);
4186 sym_hashes_end = (sym_hashes
1e2f5b6e
AM		 4187 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
4188 - symtab_hdr->sh_info);
5bd4f169
AM		 4189
4190 sreloc = NULL;
1e2f5b6e
AM		 4191 opd_sym_map = NULL;
4192 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
4193 {
4194 /* Garbage collection needs some extra help with .opd sections.
4195 We don't want to necessarily keep everything referenced by
4196 relocs in .opd, as that would keep all functions. Instead,
4197 if we reference an .opd symbol (a function descriptor), we
4198 want to keep the function code symbol's section. This is
4199 easy for global symbols, but for local syms we need to keep
4200 information about the associated function section. Later, if
4201 edit_opd deletes entries, we'll use this array to adjust
4202 local syms in .opd. */
4203 union opd_info {
4204 asection *func_section;
4205 long entry_adjust;
4206 };
4207 bfd_size_type amt;
4208
3f764659 4209 amt = sec->size * sizeof (union opd_info) / 8;
4ce794b7 4210 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 4211 if (opd_sym_map == NULL)
b34976b6 4212 return FALSE;
f0abc2a1 4213 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 4214 }
5bd4f169 4215
82bd7b59
AM		 4216 if (htab->sfpr == NULL
4217 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 4218 return FALSE;
82bd7b59 4219
5bd4f169
AM		 4220 rel_end = relocs + sec->reloc_count;
4221 for (rel = relocs; rel < rel_end; rel++)
4222 {
4223 unsigned long r_symndx;
4224 struct elf_link_hash_entry *h;
04c9666a 4225 enum elf_ppc64_reloc_type r_type;
411e1bfb 4226 int tls_type = 0;
5bd4f169
AM		 4227
4228 r_symndx = ELF64_R_SYM (rel->r_info);
4229 if (r_symndx < symtab_hdr->sh_info)
4230 h = NULL;
4231 else
4232 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4233
4ce794b7 4234 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4235 switch (r_type)
5bd4f169 4236 {
411e1bfb
AM		 4237 case R_PPC64_GOT_TLSLD16:
4238 case R_PPC64_GOT_TLSLD16_LO:
4239 case R_PPC64_GOT_TLSLD16_HI:
4240 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4241 ppc64_tlsld_got (abfd)->refcount += 1;
951fd09b 4242 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4243 goto dogottls;
4244
4245 case R_PPC64_GOT_TLSGD16:
4246 case R_PPC64_GOT_TLSGD16_LO:
4247 case R_PPC64_GOT_TLSGD16_HI:
4248 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4249 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4250 goto dogottls;
4251
4252 case R_PPC64_GOT_TPREL16_DS:
4253 case R_PPC64_GOT_TPREL16_LO_DS:
4254 case R_PPC64_GOT_TPREL16_HI:
4255 case R_PPC64_GOT_TPREL16_HA:
4256 if (info->shared)
4257 info->flags |= DF_STATIC_TLS;
4258 tls_type = TLS_TLS | TLS_TPREL;
4259 goto dogottls;
4260
4261 case R_PPC64_GOT_DTPREL16_DS:
4262 case R_PPC64_GOT_DTPREL16_LO_DS:
4263 case R_PPC64_GOT_DTPREL16_HI:
4264 case R_PPC64_GOT_DTPREL16_HA:
4265 tls_type = TLS_TLS | TLS_DTPREL;
4266 dogottls:
4267 sec->has_tls_reloc = 1;
4268 /* Fall thru */
4269
5bd4f169 4270 case R_PPC64_GOT16:
5bd4f169 4271 case R_PPC64_GOT16_DS:
65f38f15
AM		 4272 case R_PPC64_GOT16_HA:
4273 case R_PPC64_GOT16_HI:
4274 case R_PPC64_GOT16_LO:
5bd4f169 4275 case R_PPC64_GOT16_LO_DS:
65f38f15 4276 /* This symbol requires a global offset table entry. */
ad8e1ba5 4277 sec->has_gp_reloc = 1;
e717da7e
AM		 4278 if (ppc64_elf_tdata (abfd)->got == NULL
4279 && !create_got_section (abfd, info))
b34976b6 4280 return FALSE;
5bd4f169
AM		 4281
4282 if (h != NULL)
4283 {
411e1bfb
AM		 4284 struct ppc_link_hash_entry *eh;
4285 struct got_entry *ent;
65f38f15 4286
411e1bfb
AM		 4287 eh = (struct ppc_link_hash_entry *) h;
4288 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
4289 if (ent->addend == rel->r_addend
e717da7e 4290 && ent->owner == abfd
411e1bfb
AM		 4291 && ent->tls_type == tls_type)
4292 break;
4293 if (ent == NULL)
5bd4f169 4294 {
411e1bfb 4295 bfd_size_type amt = sizeof (*ent);
4ce794b7 4296 ent = bfd_alloc (abfd, amt);
411e1bfb 4297 if (ent == NULL)
b34976b6 4298 return FALSE;
411e1bfb
AM		 4299 ent->next = eh->elf.got.glist;
4300 ent->addend = rel->r_addend;
e717da7e 4301 ent->owner = abfd;
411e1bfb
AM		 4302 ent->tls_type = tls_type;
4303 ent->got.refcount = 0;
4304 eh->elf.got.glist = ent;
5bd4f169 4305 }
411e1bfb 4306 ent->got.refcount += 1;
e7b938ca 4307 eh->tls_mask |= tls_type;
5bd4f169 4308 }
411e1bfb
AM		 4309 else
4310 /* This is a global offset table entry for a local symbol. */
4311 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4312 rel->r_addend, tls_type))
4313 return FALSE;
5bd4f169
AM		 4314 break;
4315
5bd4f169 4316 case R_PPC64_PLT16_HA:
65f38f15
AM		 4317 case R_PPC64_PLT16_HI:
4318 case R_PPC64_PLT16_LO:
4319 case R_PPC64_PLT32:
4320 case R_PPC64_PLT64:
5bd4f169 4321 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 4322 actually build the entry in adjust_dynamic_symbol,
4323 because this might be a case of linking PIC code without
4324 linking in any dynamic objects, in which case we don't
4325 need to generate a procedure linkage table after all. */
5bd4f169
AM		 4326 if (h == NULL)
4327 {
4328 /* It does not make sense to have a procedure linkage
3fad3c7c 4329 table entry for a local symbol. */
5bd4f169 4330 bfd_set_error (bfd_error_bad_value);
b34976b6 4331 return FALSE;
5bd4f169 4332 }
411e1bfb
AM		 4333 else
4334 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4335 rel->r_addend))
4336 return FALSE;
5bd4f169
AM		 4337 break;
4338
4339 /* The following relocations don't need to propagate the
4340 relocation if linking a shared object since they are
4341 section relative. */
4342 case R_PPC64_SECTOFF:
4343 case R_PPC64_SECTOFF_LO:
4344 case R_PPC64_SECTOFF_HI:
4345 case R_PPC64_SECTOFF_HA:
4346 case R_PPC64_SECTOFF_DS:
4347 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 4348 case R_PPC64_DTPREL16:
4349 case R_PPC64_DTPREL16_LO:
4350 case R_PPC64_DTPREL16_HI:
4351 case R_PPC64_DTPREL16_HA:
4352 case R_PPC64_DTPREL16_DS:
4353 case R_PPC64_DTPREL16_LO_DS:
4354 case R_PPC64_DTPREL16_HIGHER:
4355 case R_PPC64_DTPREL16_HIGHERA:
4356 case R_PPC64_DTPREL16_HIGHEST:
4357 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 4358 break;
4359
ad8e1ba5
AM		 4360 /* Nor do these. */
4361 case R_PPC64_TOC16:
4362 case R_PPC64_TOC16_LO:
4363 case R_PPC64_TOC16_HI:
4364 case R_PPC64_TOC16_HA:
4365 case R_PPC64_TOC16_DS:
4366 case R_PPC64_TOC16_LO_DS:
4367 sec->has_gp_reloc = 1;
4368 break;
4369
5bd4f169
AM		 4370 /* This relocation describes the C++ object vtable hierarchy.
4371 Reconstruct it for later use during GC. */
4372 case R_PPC64_GNU_VTINHERIT:
c152c796 4373 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4374 return FALSE;
5bd4f169
AM		 4375 break;
4376
4377 /* This relocation describes which C++ vtable entries are actually
4378 used. Record for later use during GC. */
4379 case R_PPC64_GNU_VTENTRY:
c152c796 4380 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 4381 return FALSE;
5bd4f169
AM		 4382 break;
4383
721956f4
AM		 4384 case R_PPC64_REL14:
4385 case R_PPC64_REL14_BRTAKEN:
4386 case R_PPC64_REL14_BRNTAKEN:
4387 htab->has_14bit_branch = 1;
4388 /* Fall through. */
4389
5d1634d7 4390 case R_PPC64_REL24:
8387904d 4391 if (h != NULL)
5d1634d7
AM		 4392 {
4393 /* We may need a .plt entry if the function this reloc
4394 refers to is in a shared lib. */
411e1bfb
AM		 4395 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4396 rel->r_addend))
4397 return FALSE;
8387904d
AM		 4398 if (h == &htab->tls_get_addr->elf
4399 || h == &htab->tls_get_addr_fd->elf)
411e1bfb 4400 sec->has_tls_reloc = 1;
8387904d
AM		 4401 else if (htab->tls_get_addr == NULL
4402 && !strncmp (h->root.root.string, ".__tls_get_addr", 15)
a48ebf4d
AM		 4403 && (h->root.root.string[15] == 0
4404 || h->root.root.string[15] == '@'))
411e1bfb 4405 {
8387904d
AM		 4406 htab->tls_get_addr = (struct ppc_link_hash_entry *) h;
4407 sec->has_tls_reloc = 1;
4408 }
4409 else if (htab->tls_get_addr_fd == NULL
4410 && !strncmp (h->root.root.string, "__tls_get_addr", 14)
4411 && (h->root.root.string[14] == 0
4412 || h->root.root.string[14] == '@'))
4413 {
4414 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) h;
411e1bfb
AM		 4415 sec->has_tls_reloc = 1;
4416 }
4417 }
4418 break;
4419
4420 case R_PPC64_TPREL64:
4421 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
4422 if (info->shared)
4423 info->flags |= DF_STATIC_TLS;
4424 goto dotlstoc;
4425
4426 case R_PPC64_DTPMOD64:
4427 if (rel + 1 < rel_end
4428 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
4429 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 4430 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 4431 else
951fd09b 4432 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 4433 goto dotlstoc;
4434
4435 case R_PPC64_DTPREL64:
4436 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
4437 if (rel != relocs
4438 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
4439 && rel[-1].r_offset == rel->r_offset - 8)
4440 /* This is the second reloc of a dtpmod, dtprel pair.
4441 Don't mark with TLS_DTPREL. */
4442 goto dodyn;
4443
4444 dotlstoc:
4445 sec->has_tls_reloc = 1;
4446 if (h != NULL)
4447 {
4448 struct ppc_link_hash_entry *eh;
4449 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4450 eh->tls_mask |= tls_type;
411e1bfb
AM		 4451 }
4452 else
4453 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4454 rel->r_addend, tls_type))
4455 return FALSE;
4456
4457 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
4458 {
e7b938ca 4459 /* One extra to simplify get_tls_mask. */
eea6121a 4460 bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1;
4ce794b7 4461 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
411e1bfb
AM		 4462 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
4463 return FALSE;
4464 }
4465 BFD_ASSERT (rel->r_offset % 8 == 0);
4466 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM		 4467
4468 /* Mark the second slot of a GD or LD entry.
4469 -1 to indicate GD and -2 to indicate LD. */
4470 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
4471 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
4472 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
4473 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 4474 goto dodyn;
4475
4476 case R_PPC64_TPREL16:
4477 case R_PPC64_TPREL16_LO:
4478 case R_PPC64_TPREL16_HI:
4479 case R_PPC64_TPREL16_HA:
4480 case R_PPC64_TPREL16_DS:
4481 case R_PPC64_TPREL16_LO_DS:
4482 case R_PPC64_TPREL16_HIGHER:
4483 case R_PPC64_TPREL16_HIGHERA:
4484 case R_PPC64_TPREL16_HIGHEST:
4485 case R_PPC64_TPREL16_HIGHESTA:
4486 if (info->shared)
4487 {
4488 info->flags |= DF_STATIC_TLS;
4489 goto dodyn;
5d1634d7
AM		 4490 }
4491 break;
4492
e86ce104 4493 case R_PPC64_ADDR64:
1e2f5b6e 4494 if (opd_sym_map != NULL
1e2f5b6e 4495 && rel + 1 < rel_end
4ce794b7 4496 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e 4497 {
8387904d
AM		 4498 if (h != NULL)
4499 {
4500 if (h->root.root.string[0] == '.'
4501 && h->root.root.string[1] != 0
4502 && get_fdh ((struct ppc_link_hash_entry *) h, htab))
4503 ;
4504 else
4505 ((struct ppc_link_hash_entry *) h)->is_func = 1;
4506 }
4507 else
4508 {
4509 asection *s;
1e2f5b6e 4510
8387904d
AM		 4511 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
4512 r_symndx);
4513 if (s == NULL)
4514 return FALSE;
4515 else if (s != sec)
3f764659 4516 opd_sym_map[rel->r_offset / 8] = s;
8387904d 4517 }
1e2f5b6e 4518 }
e86ce104
AM		 4519 /* Fall through. */
4520
04c9666a 4521 case R_PPC64_REL30:
5bd4f169 4522 case R_PPC64_REL32:
04c9666a 4523 case R_PPC64_REL64:
65f38f15
AM		 4524 case R_PPC64_ADDR14:
4525 case R_PPC64_ADDR14_BRNTAKEN:
4526 case R_PPC64_ADDR14_BRTAKEN:
4527 case R_PPC64_ADDR16:
4528 case R_PPC64_ADDR16_DS:
4529 case R_PPC64_ADDR16_HA:
4530 case R_PPC64_ADDR16_HI:
4531 case R_PPC64_ADDR16_HIGHER:
4532 case R_PPC64_ADDR16_HIGHERA:
4533 case R_PPC64_ADDR16_HIGHEST:
4534 case R_PPC64_ADDR16_HIGHESTA:
4535 case R_PPC64_ADDR16_LO:
4536 case R_PPC64_ADDR16_LO_DS:
4537 case R_PPC64_ADDR24:
65f38f15 4538 case R_PPC64_ADDR32:
65f38f15
AM		 4539 case R_PPC64_UADDR16:
4540 case R_PPC64_UADDR32:
4541 case R_PPC64_UADDR64:
5bd4f169 4542 case R_PPC64_TOC:
81848ca0
AM		 4543 if (h != NULL && !info->shared)
4544 /* We may need a copy reloc. */
4545 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
4546
41bd81ab 4547 /* Don't propagate .opd relocs. */
1e2f5b6e 4548 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 4549 break;
e86ce104 4550
65f38f15
AM		 4551 /* If we are creating a shared library, and this is a reloc
4552 against a global symbol, or a non PC relative reloc
4553 against a local symbol, then we need to copy the reloc
4554 into the shared library. However, if we are linking with
4555 -Bsymbolic, we do not need to copy a reloc against a
4556 global symbol which is defined in an object we are
4557 including in the link (i.e., DEF_REGULAR is set). At
4558 this point we have not seen all the input files, so it is
4559 possible that DEF_REGULAR is not set now but will be set
4560 later (it is never cleared). In case of a weak definition,
4561 DEF_REGULAR may be cleared later by a strong definition in
4562 a shared library. We account for that possibility below by
f4656909 4563 storing information in the dyn_relocs field of the hash
65f38f15
AM		 4564 table entry. A similar situation occurs when creating
4565 shared libraries and symbol visibility changes render the
4566 symbol local.
4567
4568 If on the other hand, we are creating an executable, we
4569 may need to keep relocations for symbols satisfied by a
4570 dynamic library if we manage to avoid copy relocs for the
4571 symbol. */
411e1bfb 4572 dodyn:
65f38f15 4573 if ((info->shared
411e1bfb 4574 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM		 4575 || (h != NULL
4576 && (! info->symbolic
4577 || h->root.type == bfd_link_hash_defweak
4578 || (h->elf_link_hash_flags
4579 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
f4656909
AM		 4580 || (ELIMINATE_COPY_RELOCS
4581 && !info->shared
65f38f15
AM		 4582 && h != NULL
4583 && (h->root.type == bfd_link_hash_defweak
4584 || (h->elf_link_hash_flags
4585 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
5bd4f169 4586 {
ec338859
AM		 4587 struct ppc_dyn_relocs *p;
4588 struct ppc_dyn_relocs **head;
4589
65f38f15
AM		 4590 /* We must copy these reloc types into the output file.
4591 Create a reloc section in dynobj and make room for
4592 this reloc. */
5bd4f169
AM		 4593 if (sreloc == NULL)
4594 {
4595 const char *name;
65f38f15 4596 bfd *dynobj;
5bd4f169
AM		 4597
4598 name = (bfd_elf_string_from_elf_section
4599 (abfd,
4600 elf_elfheader (abfd)->e_shstrndx,
4601 elf_section_data (sec)->rel_hdr.sh_name));
4602 if (name == NULL)
b34976b6 4603 return FALSE;
5bd4f169 4604
65f38f15
AM		 4605 if (strncmp (name, ".rela", 5) != 0
4606 || strcmp (bfd_get_section_name (abfd, sec),
4607 name + 5) != 0)
4608 {
4609 (*_bfd_error_handler)
d003868e
AM		 4610 (_("%B: bad relocation section name `%s\'"),
4611 abfd, name);
5d1634d7 4612 bfd_set_error (bfd_error_bad_value);
65f38f15
AM		 4613 }
4614
65f38f15 4615 dynobj = htab->elf.dynobj;
5bd4f169
AM		 4616 sreloc = bfd_get_section_by_name (dynobj, name);
4617 if (sreloc == NULL)
4618 {
4619 flagword flags;
4620
4621 sreloc = bfd_make_section (dynobj, name);
4622 flags = (SEC_HAS_CONTENTS | SEC_READONLY
4623 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4624 if ((sec->flags & SEC_ALLOC) != 0)
4625 flags |= SEC_ALLOC | SEC_LOAD;
4626 if (sreloc == NULL
4627 || ! bfd_set_section_flags (dynobj, sreloc, flags)
65f38f15 4628 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 4629 return FALSE;
5bd4f169 4630 }
65f38f15 4631 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM		 4632 }
4633
65f38f15
AM		 4634 /* If this is a global symbol, we count the number of
4635 relocations we need for this symbol. */
4636 if (h != NULL)
4637 {
ec338859 4638 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM		 4639 }
4640 else
4641 {
ec338859
AM		 4642 /* Track dynamic relocs needed for local syms too.
4643 We really need local syms available to do this
4644 easily. Oh well. */
4645
4646 asection *s;
4647 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4648 sec, r_symndx);
4649 if (s == NULL)
b34976b6 4650 return FALSE;
ec338859
AM		 4651
4652 head = ((struct ppc_dyn_relocs **)
4653 &elf_section_data (s)->local_dynrel);
65f38f15 4654 }
ec338859
AM		 4655
4656 p = *head;
4657 if (p == NULL || p->sec != sec)
4658 {
4ce794b7 4659 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4660 if (p == NULL)
b34976b6 4661 return FALSE;
ec338859
AM		 4662 p->next = *head;
4663 *head = p;
4664 p->sec = sec;
4665 p->count = 0;
4666 p->pc_count = 0;
4667 }
4668
4669 p->count += 1;
411e1bfb 4670 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4671 p->pc_count += 1;
65f38f15 4672 }
5bd4f169 4673 break;
65f38f15
AM		 4674
4675 default:
96e0dda4 4676 break;
5bd4f169
AM		 4677 }
4678 }
4679
b34976b6 4680 return TRUE;
5bd4f169
AM		 4681}
4682
8387904d
AM		 4683/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
4684 of the code entry point, and its section. */
4685
4686static bfd_vma
4687opd_entry_value (asection *opd_sec,
4688 bfd_vma offset,
4689 asection **code_sec,
4690 bfd_vma *code_off)
4691{
4692 bfd *opd_bfd = opd_sec->owner;
4693 Elf_Internal_Rela *lo, *hi, *look;
4694
4695 /* Go find the opd reloc at the sym address. */
4696 lo = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
4697 BFD_ASSERT (lo != NULL);
4698 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
4699
4700 while (lo < hi)
4701 {
4702 look = lo + (hi - lo) / 2;
4703 if (look->r_offset < offset)
4704 lo = look + 1;
4705 else if (look->r_offset > offset)
4706 hi = look;
4707 else
4708 {
4709 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (opd_bfd)->symtab_hdr;
4710 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
4711 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
4712 {
4713 unsigned long symndx = ELF64_R_SYM (look->r_info);
4714 bfd_vma val;
4715 asection *sec;
4716
4717 if (symndx < symtab_hdr->sh_info)
4718 {
4719 Elf_Internal_Sym *sym;
4720
4721 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
4722 if (sym == NULL)
4723 {
4724 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
4725 symtab_hdr->sh_info,
4726 0, NULL, NULL, NULL);
4727 if (sym == NULL)
4728 return (bfd_vma) -1;
4729 symtab_hdr->contents = (bfd_byte *) sym;
4730 }
4731
4732 sym += symndx;
4733 val = sym->st_value;
4734 sec = NULL;
4735 if ((sym->st_shndx != SHN_UNDEF
4736 && sym->st_shndx < SHN_LORESERVE)
4737 || sym->st_shndx > SHN_HIRESERVE)
4738 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
4739 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
4740 }
4741 else
4742 {
4743 struct elf_link_hash_entry **sym_hashes;
4744 struct elf_link_hash_entry *rh;
4745
4746 sym_hashes = elf_sym_hashes (opd_bfd);
4747 rh = sym_hashes[symndx - symtab_hdr->sh_info];
4748 while (rh->root.type == bfd_link_hash_indirect
4749 || rh->root.type == bfd_link_hash_warning)
4750 rh = ((struct elf_link_hash_entry *) rh->root.u.i.link);
4751 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
4752 || rh->root.type == bfd_link_hash_defweak);
4753 val = rh->root.u.def.value;
4754 sec = rh->root.u.def.section;
4755 }
4756 val += look->r_addend;
4757 if (code_off != NULL)
4758 *code_off = val;
4759 if (code_sec != NULL)
4760 *code_sec = sec;
4761 if (sec != NULL && sec->output_section != NULL)
4762 val += sec->output_section->vma + sec->output_offset;
4763 return val;
4764 }
4765 break;
4766 }
4767 }
4768 return (bfd_vma) -1;
4769}
4770
5bd4f169
AM		 4771/* Return the section that should be marked against GC for a given
4772 relocation. */
4773
4774static asection *
4ce794b7 4775ppc64_elf_gc_mark_hook (asection *sec,
ccfa59ea 4776 struct bfd_link_info *info,
4ce794b7
AM		 4777 Elf_Internal_Rela *rel,
4778 struct elf_link_hash_entry *h,
4779 Elf_Internal_Sym *sym)
5bd4f169 4780{
ccfa59ea
AM		 4781 asection *rsec;
4782
4783 /* First mark all our entry sym sections. */
4784 if (info->gc_sym_list != NULL)
4785 {
4786 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4787 struct bfd_sym_chain *sym = info->gc_sym_list;
4788
4789 info->gc_sym_list = NULL;
4790 do
4791 {
4792 struct ppc_link_hash_entry *eh;
4793
4794 eh = (struct ppc_link_hash_entry *)
4795 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
4796 if (eh == NULL)
4797 continue;
4798 if (eh->elf.root.type != bfd_link_hash_defined
4799 && eh->elf.root.type != bfd_link_hash_defweak)
4800 continue;
4801
4802 if (eh->is_func_descriptor)
4803 rsec = eh->oh->elf.root.u.def.section;
8387904d
AM		 4804 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
4805 && opd_entry_value (eh->elf.root.u.def.section,
4806 eh->elf.root.u.def.value,
4807 &rsec, NULL) != (bfd_vma) -1)
4808 ;
ccfa59ea
AM		 4809 else
4810 continue;
4811
4812 if (!rsec->gc_mark)
4813 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4814
4815 rsec = eh->elf.root.u.def.section;
4816 if (!rsec->gc_mark)
4817 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4818
4819 sym = sym->next;
4820 }
4821 while (sym != NULL);
4822 }
4823
4824 /* Syms return NULL if we're marking .opd, so we avoid marking all
4825 function sections, as all functions are referenced in .opd. */
4826 rsec = NULL;
4827 if (get_opd_info (sec) != NULL)
4828 return rsec;
1e2f5b6e 4829
5bd4f169
AM		 4830 if (h != NULL)
4831 {
04c9666a 4832 enum elf_ppc64_reloc_type r_type;
ccfa59ea 4833 struct ppc_link_hash_entry *eh;
a33d1f77 4834
4ce794b7 4835 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4836 switch (r_type)
5bd4f169
AM		 4837 {
4838 case R_PPC64_GNU_VTINHERIT:
4839 case R_PPC64_GNU_VTENTRY:
4840 break;
4841
4842 default:
4843 switch (h->root.type)
4844 {
4845 case bfd_link_hash_defined:
4846 case bfd_link_hash_defweak:
ccfa59ea
AM		 4847 eh = (struct ppc_link_hash_entry *) h;
4848 if (eh->oh != NULL && eh->oh->is_func_descriptor)
4849 eh = eh->oh;
1e2f5b6e
AM		 4850
4851 /* Function descriptor syms cause the associated
4852 function code sym section to be marked. */
ccfa59ea
AM		 4853 if (eh->is_func_descriptor)
4854 {
4855 /* They also mark their opd section. */
4856 if (!eh->elf.root.u.def.section->gc_mark)
4857 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
4858 ppc64_elf_gc_mark_hook);
4859
4860 rsec = eh->oh->elf.root.u.def.section;
4861 }
8387904d
AM		 4862 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
4863 && opd_entry_value (eh->elf.root.u.def.section,
4864 eh->elf.root.u.def.value,
4865 &rsec, NULL) != (bfd_vma) -1)
4866 {
4867 if (!eh->elf.root.u.def.section->gc_mark)
4868 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
4869 ppc64_elf_gc_mark_hook);
4870 }
ccfa59ea 4871 else
1e2f5b6e
AM		 4872 rsec = h->root.u.def.section;
4873 break;
5bd4f169
AM		 4874
4875 case bfd_link_hash_common:
1e2f5b6e
AM		 4876 rsec = h->root.u.c.p->section;
4877 break;
5bd4f169
AM		 4878
4879 default:
4880 break;
4881 }
4882 }
4883 }
4884 else
4885 {
1e2f5b6e
AM		 4886 asection **opd_sym_section;
4887
4888 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
ccfa59ea 4889 opd_sym_section = get_opd_info (rsec);
1e2f5b6e 4890 if (opd_sym_section != NULL)
ccfa59ea
AM		 4891 {
4892 if (!rsec->gc_mark)
4893 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4894
3f764659 4895 rsec = opd_sym_section[sym->st_value / 8];
ccfa59ea 4896 }
5bd4f169
AM		 4897 }
4898
1e2f5b6e 4899 return rsec;
5bd4f169
AM		 4900}
4901
65f38f15
AM		 4902/* Update the .got, .plt. and dynamic reloc reference counts for the
4903 section being removed. */
5bd4f169 4904
b34976b6 4905static bfd_boolean
4ce794b7
AM		 4906ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
4907 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4908{
411e1bfb 4909 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4910 Elf_Internal_Shdr *symtab_hdr;
4911 struct elf_link_hash_entry **sym_hashes;
411e1bfb 4912 struct got_entry **local_got_ents;
5bd4f169 4913 const Elf_Internal_Rela *rel, *relend;
5bd4f169 4914
680a3378
AM		 4915 if ((sec->flags & SEC_ALLOC) == 0)
4916 return TRUE;
4917
ec338859
AM		 4918 elf_section_data (sec)->local_dynrel = NULL;
4919
411e1bfb 4920 htab = ppc_hash_table (info);
5bd4f169
AM		 4921 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4922 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 4923 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 4924
4925 relend = relocs + sec->reloc_count;
4926 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 4927 {
4928 unsigned long r_symndx;
04c9666a 4929 enum elf_ppc64_reloc_type r_type;
58ac9f71 4930 struct elf_link_hash_entry *h = NULL;
411e1bfb 4931 char tls_type = 0;
5bd4f169 4932
a33d1f77 4933 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 4934 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 4935 if (r_symndx >= symtab_hdr->sh_info)
4936 {
4937 struct ppc_link_hash_entry *eh;
4938 struct ppc_dyn_relocs **pp;
4939 struct ppc_dyn_relocs *p;
4940
4941 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4942 eh = (struct ppc_link_hash_entry *) h;
4943
4944 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4945 if (p->sec == sec)
4946 {
4947 /* Everything must go for SEC. */
4948 *pp = p->next;
4949 break;
4950 }
4951 }
4952
a33d1f77
AM		 4953 switch (r_type)
4954 {
411e1bfb
AM		 4955 case R_PPC64_GOT_TLSLD16:
4956 case R_PPC64_GOT_TLSLD16_LO:
4957 case R_PPC64_GOT_TLSLD16_HI:
4958 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4959 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 4960 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4961 goto dogot;
4962
4963 case R_PPC64_GOT_TLSGD16:
4964 case R_PPC64_GOT_TLSGD16_LO:
4965 case R_PPC64_GOT_TLSGD16_HI:
4966 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4967 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4968 goto dogot;
4969
4970 case R_PPC64_GOT_TPREL16_DS:
4971 case R_PPC64_GOT_TPREL16_LO_DS:
4972 case R_PPC64_GOT_TPREL16_HI:
4973 case R_PPC64_GOT_TPREL16_HA:
4974 tls_type = TLS_TLS | TLS_TPREL;
4975 goto dogot;
4976
4977 case R_PPC64_GOT_DTPREL16_DS:
4978 case R_PPC64_GOT_DTPREL16_LO_DS:
4979 case R_PPC64_GOT_DTPREL16_HI:
4980 case R_PPC64_GOT_DTPREL16_HA:
4981 tls_type = TLS_TLS | TLS_DTPREL;
4982 goto dogot;
4983
a33d1f77
AM		 4984 case R_PPC64_GOT16:
4985 case R_PPC64_GOT16_DS:
4986 case R_PPC64_GOT16_HA:
4987 case R_PPC64_GOT16_HI:
4988 case R_PPC64_GOT16_LO:
4989 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 4990 dogot:
4991 {
4992 struct got_entry *ent;
4993
58ac9f71
AM		 4994 if (h != NULL)
4995 ent = h->got.glist;
411e1bfb
AM		 4996 else
4997 ent = local_got_ents[r_symndx];
4998
4999 for (; ent != NULL; ent = ent->next)
5000 if (ent->addend == rel->r_addend
e717da7e 5001 && ent->owner == abfd
411e1bfb
AM		 5002 && ent->tls_type == tls_type)
5003 break;
5004 if (ent == NULL)
5005 abort ();
5006 if (ent->got.refcount > 0)
5007 ent->got.refcount -= 1;
5008 }
a33d1f77 5009 break;
65f38f15 5010
a33d1f77
AM		 5011 case R_PPC64_PLT16_HA:
5012 case R_PPC64_PLT16_HI:
5013 case R_PPC64_PLT16_LO:
5014 case R_PPC64_PLT32:
5015 case R_PPC64_PLT64:
721956f4
AM		 5016 case R_PPC64_REL14:
5017 case R_PPC64_REL14_BRNTAKEN:
5018 case R_PPC64_REL14_BRTAKEN:
5d1634d7 5019 case R_PPC64_REL24:
58ac9f71 5020 if (h != NULL)
5d1634d7 5021 {
411e1bfb
AM		 5022 struct plt_entry *ent;
5023
411e1bfb
AM		 5024 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5025 if (ent->addend == rel->r_addend)
5026 break;
5027 if (ent == NULL)
5028 abort ();
5029 if (ent->plt.refcount > 0)
5030 ent->plt.refcount -= 1;
5d1634d7 5031 }
e86ce104 5032 break;
5d1634d7 5033
a33d1f77
AM		 5034 default:
5035 break;
5036 }
5037 }
b34976b6 5038 return TRUE;
5bd4f169
AM		 5039}
5040
e86ce104
AM		 5041/* Called via elf_link_hash_traverse to transfer dynamic linking
5042 information on function code symbol entries to their corresponding
5043 function descriptor symbol entries. */
b34976b6 5044static bfd_boolean
4ce794b7 5045func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5046{
e86ce104 5047 struct bfd_link_info *info;
65f38f15 5048 struct ppc_link_hash_table *htab;
411e1bfb 5049 struct plt_entry *ent;
50bc7936
AM		 5050 struct ppc_link_hash_entry *fh;
5051 struct ppc_link_hash_entry *fdh;
5052 bfd_boolean force_local;
5bd4f169 5053
50bc7936
AM		 5054 fh = (struct ppc_link_hash_entry *) h;
5055 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 5056 return TRUE;
e86ce104 5057
50bc7936
AM		 5058 if (fh->elf.root.type == bfd_link_hash_warning)
5059 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 5060
4ce794b7 5061 info = inf;
65f38f15 5062 htab = ppc_hash_table (info);
5bd4f169 5063
c09bdfe5
AM		 5064 /* Resolve undefined references to dot-symbols as the value
5065 in the function descriptor, if we have one in a regular object.
5066 This is to satisfy cases like ".quad .foo". Calls to functions
5067 in dynamic objects are handled elsewhere. */
5068 if (fh->elf.root.type == bfd_link_hash_undefweak
5069 && fh->was_undefined
5070 && (fh->oh->elf.root.type == bfd_link_hash_defined
5071 || fh->oh->elf.root.type == bfd_link_hash_defweak)
5072 && get_opd_info (fh->oh->elf.root.u.def.section) != NULL
5073 && opd_entry_value (fh->oh->elf.root.u.def.section,
5074 fh->oh->elf.root.u.def.value,
5075 &fh->elf.root.u.def.section,
5076 &fh->elf.root.u.def.value) != (bfd_vma) -1)
5077 {
5078 fh->elf.root.type = fh->oh->elf.root.type;
5079 fh->elf.elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
5080 }
5081
e86ce104
AM		 5082 /* If this is a function code symbol, transfer dynamic linking
5083 information to the function descriptor symbol. */
50bc7936 5084 if (!fh->is_func)
b34976b6 5085 return TRUE;
e86ce104 5086
50bc7936 5087 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 5088 if (ent->plt.refcount > 0)
5089 break;
50bc7936
AM		 5090 if (ent == NULL
5091 || fh->elf.root.root.string[0] != '.'
5092 || fh->elf.root.root.string[1] == '\0')
5093 return TRUE;
5bd4f169 5094
50bc7936
AM		 5095 /* Find the corresponding function descriptor symbol. Create it
5096 as undefined if necessary. */
5bd4f169 5097
50bc7936
AM		 5098 fdh = get_fdh (fh, htab);
5099 if (fdh != NULL)
5100 while (fdh->elf.root.type == bfd_link_hash_indirect
5101 || fdh->elf.root.type == bfd_link_hash_warning)
5102 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 5103
50bc7936
AM		 5104 if (fdh == NULL
5105 && info->shared
5106 && (fh->elf.root.type == bfd_link_hash_undefined
5107 || fh->elf.root.type == bfd_link_hash_undefweak))
5108 {
5109 bfd *abfd;
5110 asymbol *newsym;
5111 struct bfd_link_hash_entry *bh;
5112
5113 abfd = fh->elf.root.u.undef.abfd;
5114 newsym = bfd_make_empty_symbol (abfd);
5115 newsym->name = fh->elf.root.root.string + 1;
5116 newsym->section = bfd_und_section_ptr;
5117 newsym->value = 0;
5118 newsym->flags = BSF_OBJECT;
5119 if (fh->elf.root.type == bfd_link_hash_undefweak)
5120 newsym->flags |= BSF_WEAK;
5121
5122 bh = &fdh->elf.root;
5123 if ( !(_bfd_generic_link_add_one_symbol
5124 (info, abfd, newsym->name, newsym->flags,
5125 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
648cca2c 5126 {
50bc7936 5127 return FALSE;
648cca2c 5128 }
50bc7936
AM		 5129 fdh = (struct ppc_link_hash_entry *) bh;
5130 fdh->elf.elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
5131 fdh->elf.size = 24;
5132 fdh->elf.type = STT_OBJECT;
5133 }
648cca2c 5134
50bc7936
AM		 5135 if (fdh != NULL
5136 && (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
5137 && (info->shared
5138 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5139 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
5140 || (fdh->elf.root.type == bfd_link_hash_undefweak
5141 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
5142 {
5143 if (fdh->elf.dynindx == -1)
c152c796 5144 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936
AM		 5145 return FALSE;
5146 fdh->elf.elf_link_hash_flags
5147 |= (fh->elf.elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
5148 | ELF_LINK_HASH_REF_DYNAMIC
5149 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
5150 | ELF_LINK_NON_GOT_REF));
5151 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 5152 {
8387904d
AM		 5153 struct plt_entry **ep = &fdh->elf.plt.plist;
5154 while (*ep != NULL)
5155 ep = &(*ep)->next;
5156 *ep = fh->elf.plt.plist;
5157 fh->elf.plt.plist = NULL;
50bc7936 5158 fdh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
e86ce104 5159 }
50bc7936 5160 fdh->is_func_descriptor = 1;
34814b9f
AM		 5161 fdh->oh = fh;
5162 fh->oh = fdh;
e86ce104
AM		 5163 }
5164
50bc7936
AM		 5165 /* Now that the info is on the function descriptor, clear the
5166 function code sym info. Any function code syms for which we
5167 don't have a definition in a regular file, we force local.
5168 This prevents a shared library from exporting syms that have
5169 been imported from another library. Function code syms that
5170 are really in the library we must leave global to prevent the
5171 linker dragging in a definition from a static library. */
5172 force_local
5173 = (info->shared
5174 && ((fh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
5175 || fdh == NULL
5176 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
5177 || (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0));
5178 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
5179
b34976b6 5180 return TRUE;
e86ce104 5181}
40b8271b 5182
82bd7b59
AM		 5183#define MIN_SAVE_FPR 14
5184#define MAX_SAVE_FPR 31
5185
e86ce104 5186/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 5187 this hook to a) provide some gcc support functions, and b) transfer
5188 dynamic linking information gathered so far on function code symbol
5189 entries, to their corresponding function descriptor symbol entries. */
b34976b6 5190static bfd_boolean
4ce794b7
AM		 5191ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
5192 struct bfd_link_info *info)
e86ce104
AM		 5193{
5194 struct ppc_link_hash_table *htab;
82bd7b59
AM		 5195 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
5196 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
5197 unsigned int i;
5198 struct elf_link_hash_entry *h;
721956f4 5199 bfd_byte *p;
82bd7b59 5200 char sym[10];
e86ce104
AM		 5201
5202 htab = ppc_hash_table (info);
82bd7b59
AM		 5203
5204 if (htab->sfpr == NULL)
5205 /* We don't have any relocs. */
b34976b6 5206 return TRUE;
82bd7b59
AM		 5207
5208 /* First provide any missing ._savef* and ._restf* functions. */
5209 memcpy (sym, "._savef14", 10);
5210 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
5211 {
5212 sym[7] = i / 10 + '0';
5213 sym[8] = i % 10 + '0';
b34976b6 5214 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 5215 if (h != NULL
772119ce 5216 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 5217 {
5218 if (lowest_savef > i)
5219 lowest_savef = i;
5220 h->root.type = bfd_link_hash_defined;
5221 h->root.u.def.section = htab->sfpr;
5222 h->root.u.def.value = (i - lowest_savef) * 4;
5223 h->type = STT_FUNC;
5224 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 5225 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 5226 }
5227 }
5228
5229 memcpy (sym, "._restf14", 10);
5230 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
5231 {
5232 sym[7] = i / 10 + '0';
5233 sym[8] = i % 10 + '0';
b34976b6 5234 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 5235 if (h != NULL
772119ce 5236 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 5237 {
5238 if (lowest_restf > i)
5239 lowest_restf = i;
5240 h->root.type = bfd_link_hash_defined;
5241 h->root.u.def.section = htab->sfpr;
5242 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
5243 + (i - lowest_restf) * 4);
5244 h->type = STT_FUNC;
5245 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 5246 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 5247 }
5248 }
5249
4ce794b7 5250 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 5251
eea6121a
AM		 5252 htab->sfpr->size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
5253 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
82bd7b59 5254
eea6121a 5255 if (htab->sfpr->size == 0)
805fc799 5256 {
06da1e8e
AM		 5257 _bfd_strip_section_from_output (info, htab->sfpr);
5258 return TRUE;
805fc799 5259 }
82bd7b59 5260
eea6121a 5261 p = bfd_alloc (htab->elf.dynobj, htab->sfpr->size);
721956f4 5262 if (p == NULL)
b34976b6 5263 return FALSE;
721956f4
AM		 5264 htab->sfpr->contents = p;
5265
5266 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
5267 {
5268 unsigned int fpr = i << 21;
5269 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
5270 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
5271 p += 4;
5272 }
5273 if (lowest_savef <= MAX_SAVE_FPR)
5274 {
82bd7b59
AM		 5275 bfd_put_32 (htab->elf.dynobj, BLR, p);
5276 p += 4;
721956f4 5277 }
82bd7b59 5278
721956f4
AM		 5279 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
5280 {
5281 unsigned int fpr = i << 21;
5282 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
5283 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
82bd7b59
AM		 5284 p += 4;
5285 }
06da1e8e
AM		 5286 if (lowest_restf <= MAX_SAVE_FPR)
5287 bfd_put_32 (htab->elf.dynobj, BLR, p);
82bd7b59 5288
b34976b6 5289 return TRUE;
e86ce104
AM		 5290}
5291
5292/* Adjust a symbol defined by a dynamic object and referenced by a
5293 regular object. The current definition is in some section of the
5294 dynamic object, but we're not including those sections. We have to
5295 change the definition to something the rest of the link can
5296 understand. */
5297
b34976b6 5298static bfd_boolean
4ce794b7
AM		 5299ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5300 struct elf_link_hash_entry *h)
e86ce104
AM		 5301{
5302 struct ppc_link_hash_table *htab;
e86ce104
AM		 5303 asection *s;
5304 unsigned int power_of_two;
5305
5306 htab = ppc_hash_table (info);
5307
5308 /* Deal with function syms. */
5309 if (h->type == STT_FUNC
5310 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
5311 {
5312 /* Clear procedure linkage table information for any symbol that
5313 won't need a .plt entry. */
411e1bfb
AM		 5314 struct plt_entry *ent;
5315 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5316 if (ent->plt.refcount > 0)
5317 break;
8387904d 5318 if (ent == NULL
9c7a29a3
AM		 5319 || SYMBOL_CALLS_LOCAL (info, h)
5320 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5321 && h->root.type == bfd_link_hash_undefweak))
40b8271b 5322 {
411e1bfb 5323 h->plt.plist = NULL;
40b8271b 5324 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
40b8271b 5325 }
5bd4f169 5326 }
bbd7ec4a 5327 else
411e1bfb 5328 h->plt.plist = NULL;
5bd4f169
AM		 5329
5330 /* If this is a weak symbol, and there is a real definition, the
5331 processor independent code will have arranged for us to see the
5332 real definition first, and we can just use the same value. */
5333 if (h->weakdef != NULL)
5334 {
5335 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
5336 || h->weakdef->root.type == bfd_link_hash_defweak);
5337 h->root.u.def.section = h->weakdef->root.u.def.section;
5338 h->root.u.def.value = h->weakdef->root.u.def.value;
a23b6845
AM		 5339 if (ELIMINATE_COPY_RELOCS)
5340 h->elf_link_hash_flags
5341 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
5342 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
b34976b6 5343 return TRUE;
5bd4f169
AM		 5344 }
5345
5bd4f169
AM		 5346 /* If we are creating a shared library, we must presume that the
5347 only references to the symbol are via the global offset table.
5348 For such cases we need not do anything here; the relocations will
5349 be handled correctly by relocate_section. */
5350 if (info->shared)
b34976b6 5351 return TRUE;
5bd4f169 5352
65f38f15
AM		 5353 /* If there are no references to this symbol that do not use the
5354 GOT, we don't need to generate a copy reloc. */
5355 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
b34976b6 5356 return TRUE;
65f38f15 5357
f4656909 5358 if (ELIMINATE_COPY_RELOCS)
65f38f15 5359 {
f4656909
AM		 5360 struct ppc_link_hash_entry * eh;
5361 struct ppc_dyn_relocs *p;
65f38f15 5362
f4656909
AM		 5363 eh = (struct ppc_link_hash_entry *) h;
5364 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5365 {
5366 s = p->sec->output_section;
5367 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5368 break;
5369 }
5370
5371 /* If we didn't find any dynamic relocs in read-only sections, then
5372 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5373 if (p == NULL)
5374 {
5375 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
5376 return TRUE;
5377 }
65f38f15
AM		 5378 }
5379
5d35169e 5380 if (h->plt.plist != NULL)
97b639ba
AM		 5381 {
5382 /* We should never get here, but unfortunately there are versions
5383 of gcc out there that improperly (for this ABI) put initialized
5384 function pointers, vtable refs and suchlike in read-only
5385 sections. Allow them to proceed, but warn that this might
5386 break at runtime. */
5387 (*_bfd_error_handler)
5388 (_("copy reloc against `%s' requires lazy plt linking; "
5389 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
5390 h->root.root.string);
5391 }
5d35169e
AM		 5392
5393 /* This is a reference to a symbol defined by a dynamic object which
5394 is not a function. */
5395
5bd4f169
AM		 5396 /* We must allocate the symbol in our .dynbss section, which will
5397 become part of the .bss section of the executable. There will be
5398 an entry for this symbol in the .dynsym section. The dynamic
5399 object will contain position independent code, so all references
5400 from the dynamic object to this symbol will go through the global
5401 offset table. The dynamic linker will use the .dynsym entry to
5402 determine the address it must put in the global offset table, so
5403 both the dynamic object and the regular object will refer to the
5404 same memory location for the variable. */
5bd4f169 5405
04c9666a
AM		 5406 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
5407 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 5408 runtime process image. We need to remember the offset into the
5409 .rela.bss section we are going to use. */
5410 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5411 {
eea6121a 5412 htab->relbss->size += sizeof (Elf64_External_Rela);
5bd4f169
AM		 5413 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
5414 }
5415
5416 /* We need to figure out the alignment required for this symbol. I
5417 have no idea how ELF linkers handle this. */
5418 power_of_two = bfd_log2 (h->size);
5419 if (power_of_two > 4)
5420 power_of_two = 4;
5421
5422 /* Apply the required alignment. */
4ce794b7 5423 s = htab->dynbss;
eea6121a 5424 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
65f38f15 5425 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 5426 {
65f38f15 5427 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 5428 return FALSE;
5bd4f169
AM		 5429 }
5430
5431 /* Define the symbol as being at this point in the section. */
5432 h->root.u.def.section = s;
eea6121a 5433 h->root.u.def.value = s->size;
5bd4f169
AM		 5434
5435 /* Increment the section size to make room for the symbol. */
eea6121a 5436 s->size += h->size;
5bd4f169 5437
b34976b6 5438 return TRUE;
5bd4f169
AM		 5439}
5440
e86ce104
AM		 5441/* If given a function descriptor symbol, hide both the function code
5442 sym and the descriptor. */
5443static void
4ce794b7
AM		 5444ppc64_elf_hide_symbol (struct bfd_link_info *info,
5445 struct elf_link_hash_entry *h,
5446 bfd_boolean force_local)
e86ce104 5447{
34814b9f 5448 struct ppc_link_hash_entry *eh;
e86ce104
AM		 5449 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
5450
34814b9f
AM		 5451 eh = (struct ppc_link_hash_entry *) h;
5452 if (eh->is_func_descriptor)
e86ce104 5453 {
34814b9f 5454 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 5455
721956f4 5456 if (fh == NULL)
d1329ca3
AM		 5457 {
5458 const char *p, *q;
5459 struct ppc_link_hash_table *htab;
5460 char save;
5461
5462 /* We aren't supposed to use alloca in BFD because on
5463 systems which do not have alloca the version in libiberty
5464 calls xmalloc, which might cause the program to crash
5465 when it runs out of memory. This function doesn't have a
5466 return status, so there's no way to gracefully return an
5467 error. So cheat. We know that string[-1] can be safely
34814b9f
AM		 5468 accessed; It's either a string in an ELF string table,
5469 or allocated in an objalloc structure. */
d1329ca3 5470
34814b9f 5471 p = eh->elf.root.root.string - 1;
d1329ca3
AM		 5472 save = *p;
5473 *(char *) p = '.';
5474 htab = ppc_hash_table (info);
34814b9f
AM		 5475 fh = (struct ppc_link_hash_entry *)
5476 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5477 *(char *) p = save;
5478
5479 /* Unfortunately, if it so happens that the string we were
5480 looking for was allocated immediately before this string,
5481 then we overwrote the string terminator. That's the only
5482 reason the lookup should fail. */
5483 if (fh == NULL)
5484 {
34814b9f
AM		 5485 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
5486 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 5487 --q, --p;
34814b9f
AM		 5488 if (q < eh->elf.root.root.string && *p == '.')
5489 fh = (struct ppc_link_hash_entry *)
5490 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5491 }
5492 if (fh != NULL)
5493 {
34814b9f
AM		 5494 eh->oh = fh;
5495 fh->oh = eh;
d1329ca3
AM		 5496 }
5497 }
e86ce104 5498 if (fh != NULL)
34814b9f 5499 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM		 5500 }
5501}
5502
411e1bfb 5503static bfd_boolean
8843416a
AM		 5504get_sym_h (struct elf_link_hash_entry **hp,
5505 Elf_Internal_Sym **symp,
5506 asection **symsecp,
5507 char **tls_maskp,
5508 Elf_Internal_Sym **locsymsp,
5509 unsigned long r_symndx,
5510 bfd *ibfd)
411e1bfb
AM		 5511{
5512 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5513
5514 if (r_symndx >= symtab_hdr->sh_info)
5515 {
5516 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5517 struct elf_link_hash_entry *h;
5518
5519 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5520 while (h->root.type == bfd_link_hash_indirect
5521 || h->root.type == bfd_link_hash_warning)
5522 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5523
5524 if (hp != NULL)
5525 *hp = h;
5526
5527 if (symp != NULL)
5528 *symp = NULL;
5529
5530 if (symsecp != NULL)
5531 {
5532 asection *symsec = NULL;
5533 if (h->root.type == bfd_link_hash_defined
5534 || h->root.type == bfd_link_hash_defweak)
5535 symsec = h->root.u.def.section;
5536 *symsecp = symsec;
5537 }
5538
e7b938ca 5539 if (tls_maskp != NULL)
411e1bfb
AM		 5540 {
5541 struct ppc_link_hash_entry *eh;
5542
5543 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 5544 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 5545 }
5546 }
5547 else
5548 {
5549 Elf_Internal_Sym *sym;
5550 Elf_Internal_Sym *locsyms = *locsymsp;
5551
5552 if (locsyms == NULL)
5553 {
5554 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5555 if (locsyms == NULL)
5556 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5557 symtab_hdr->sh_info,
5558 0, NULL, NULL, NULL);
5559 if (locsyms == NULL)
5560 return FALSE;
5561 *locsymsp = locsyms;
5562 }
5563 sym = locsyms + r_symndx;
5564
5565 if (hp != NULL)
5566 *hp = NULL;
5567
5568 if (symp != NULL)
5569 *symp = sym;
5570
5571 if (symsecp != NULL)
5572 {
5573 asection *symsec = NULL;
5574 if ((sym->st_shndx != SHN_UNDEF
5575 && sym->st_shndx < SHN_LORESERVE)
5576 || sym->st_shndx > SHN_HIRESERVE)
5577 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
5578 *symsecp = symsec;
5579 }
5580
e7b938ca 5581 if (tls_maskp != NULL)
411e1bfb
AM		 5582 {
5583 struct got_entry **lgot_ents;
e7b938ca 5584 char *tls_mask;
411e1bfb 5585
e7b938ca 5586 tls_mask = NULL;
411e1bfb
AM		 5587 lgot_ents = elf_local_got_ents (ibfd);
5588 if (lgot_ents != NULL)
5589 {
e7b938ca
AM		 5590 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
5591 tls_mask = &lgot_masks[r_symndx];
411e1bfb 5592 }
e7b938ca 5593 *tls_maskp = tls_mask;
411e1bfb
AM		 5594 }
5595 }
5596 return TRUE;
5597}
5598
e7b938ca 5599/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 5600 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 5601 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 5602
5603static int
0d4792f7
AM		 5604get_tls_mask (char **tls_maskp, unsigned long *toc_symndx,
5605 Elf_Internal_Sym **locsymsp,
4ce794b7 5606 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 5607{
5608 unsigned long r_symndx;
0d4792f7 5609 int next_r;
411e1bfb
AM		 5610 struct elf_link_hash_entry *h;
5611 Elf_Internal_Sym *sym;
5612 asection *sec;
5613 bfd_vma off;
5614
5615 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5616 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 5617 return 0;
411e1bfb 5618
e7b938ca 5619 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM		 5620 || sec == NULL
5621 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 5622 return 1;
411e1bfb
AM		 5623
5624 /* Look inside a TOC section too. */
5625 if (h != NULL)
5626 {
5627 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5628 off = h->root.u.def.value;
5629 }
5630 else
5631 off = sym->st_value;
5632 off += rel->r_addend;
5633 BFD_ASSERT (off % 8 == 0);
5634 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 5635 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 5636 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 5637 return 0;
0d4792f7
AM		 5638 if (toc_symndx != NULL)
5639 *toc_symndx = r_symndx;
5640 if ((h == NULL
5641 || ((h->root.type == bfd_link_hash_defined
5642 || h->root.type == bfd_link_hash_defweak)
5643 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
5644 && (next_r == -1 || next_r == -2))
5645 return 1 - next_r;
951fd09b 5646 return 1;
411e1bfb
AM		 5647}
5648
754021d0 5649/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 5650 code for the old ABI, these will already have been done. */
754021d0
AM		 5651
5652static bfd_boolean
5653adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
5654{
5655 struct ppc_link_hash_entry *eh;
5656 asection *sym_sec;
5657 long *opd_adjust;
5658
5659 if (h->root.type == bfd_link_hash_indirect)
5660 return TRUE;
5661
5662 if (h->root.type == bfd_link_hash_warning)
5663 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5664
5665 if (h->root.type != bfd_link_hash_defined
5666 && h->root.type != bfd_link_hash_defweak)
5667 return TRUE;
5668
5669 eh = (struct ppc_link_hash_entry *) h;
5670 if (eh->adjust_done)
5671 return TRUE;
5672
5673 sym_sec = eh->elf.root.u.def.section;
4025353c
AM		 5674 opd_adjust = get_opd_info (sym_sec);
5675 if (opd_adjust != NULL)
754021d0 5676 {
3f764659 5677 long adjust = opd_adjust[eh->elf.root.u.def.value / 8];
4025353c
AM		 5678 if (adjust == -1)
5679 {
5680 /* This entry has been deleted. */
81688140
AM		 5681 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section;
5682 if (dsec == NULL)
5683 {
5684 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
5685 if (elf_discarded_section (dsec))
5686 {
5687 ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec;
5688 break;
5689 }
5690 }
4025353c 5691 eh->elf.root.u.def.value = 0;
81688140 5692 eh->elf.root.u.def.section = dsec;
4025353c
AM		 5693 }
5694 else
5695 eh->elf.root.u.def.value += adjust;
754021d0
AM		 5696 eh->adjust_done = 1;
5697 }
5698 return TRUE;
5699}
5700
5701/* Remove unused Official Procedure Descriptor entries. Currently we
5702 only remove those associated with functions in discarded link-once
5703 sections, or weakly defined functions that have been overridden. It
5704 would be possible to remove many more entries for statically linked
5705 applications. */
5706
b34976b6 5707bfd_boolean
3f764659
JJ		 5708ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info,
5709 bfd_boolean non_overlapping)
1e2f5b6e
AM		 5710{
5711 bfd *ibfd;
754021d0 5712 bfd_boolean some_edited = FALSE;
3f764659 5713 asection *need_pad = NULL;
1e2f5b6e 5714
411e1bfb 5715 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 5716 {
5717 asection *sec;
5718 Elf_Internal_Rela *relstart, *rel, *relend;
5719 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 5720 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 5721 struct elf_link_hash_entry **sym_hashes;
5722 bfd_vma offset;
d6fe2dc1 5723 bfd_size_type amt;
4025353c 5724 long *opd_adjust;
3f764659
JJ		 5725 bfd_boolean need_edit, add_aux_fields;
5726 bfd_size_type cnt_16b = 0;
1e2f5b6e
AM		 5727
5728 sec = bfd_get_section_by_name (ibfd, ".opd");
5729 if (sec == NULL)
5730 continue;
5731
3f764659 5732 amt = sec->size * sizeof (long) / 8;
4025353c
AM		 5733 opd_adjust = get_opd_info (sec);
5734 if (opd_adjust == NULL)
d6fe2dc1
AM		 5735 {
5736 /* Must be a ld -r link. ie. check_relocs hasn't been
5737 called. */
4025353c
AM		 5738 opd_adjust = bfd_zalloc (obfd, amt);
5739 ppc64_elf_section_data (sec)->opd.adjust = opd_adjust;
d6fe2dc1 5740 }
4025353c 5741 memset (opd_adjust, 0, amt);
1e2f5b6e
AM		 5742
5743 if (sec->output_section == bfd_abs_section_ptr)
5744 continue;
5745
5746 /* Look through the section relocs. */
5747 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
5748 continue;
5749
6cdc0ccc 5750 local_syms = NULL;
1e2f5b6e
AM		 5751 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5752 sym_hashes = elf_sym_hashes (ibfd);
5753
5754 /* Read the relocations. */
4ce794b7 5755 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 5756 info->keep_memory);
1e2f5b6e 5757 if (relstart == NULL)
b34976b6 5758 return FALSE;
1e2f5b6e
AM		 5759
5760 /* First run through the relocs to check they are sane, and to
5761 determine whether we need to edit this opd section. */
b34976b6 5762 need_edit = FALSE;
3f764659 5763 need_pad = sec;
1e2f5b6e
AM		 5764 offset = 0;
5765 relend = relstart + sec->reloc_count;
50bc7936 5766 for (rel = relstart; rel < relend; )
1e2f5b6e 5767 {
04c9666a 5768 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 5769 unsigned long r_symndx;
5770 asection *sym_sec;
5771 struct elf_link_hash_entry *h;
5772 Elf_Internal_Sym *sym;
5773
3f764659 5774 /* .opd contains a regular array of 16 or 24 byte entries. We're
1e2f5b6e
AM		 5775 only interested in the reloc pointing to a function entry
5776 point. */
50bc7936
AM		 5777 if (rel->r_offset != offset
5778 || rel + 1 >= relend
5779 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM		 5780 {
5781 /* If someone messes with .opd alignment then after a
5782 "ld -r" we might have padding in the middle of .opd.
5783 Also, there's nothing to prevent someone putting
5784 something silly in .opd with the assembler. No .opd
b34976b6 5785 optimization for them! */
3f764659 5786 broken_opd:
1e2f5b6e 5787 (*_bfd_error_handler)
d003868e 5788 (_("%B: .opd is not a regular array of opd entries"), ibfd);
b34976b6 5789 need_edit = FALSE;
1e2f5b6e
AM		 5790 break;
5791 }
5792
50bc7936
AM		 5793 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
5794 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
5795 {
5796 (*_bfd_error_handler)
d003868e
AM		 5797 (_("%B: unexpected reloc type %u in .opd section"),
5798 ibfd, r_type);
50bc7936
AM		 5799 need_edit = FALSE;
5800 break;
5801 }
5802
1e2f5b6e 5803 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 5804 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
5805 r_symndx, ibfd))
50bc7936 5806 goto error_ret;
1e2f5b6e
AM		 5807
5808 if (sym_sec == NULL || sym_sec->owner == NULL)
5809 {
411e1bfb
AM		 5810 const char *sym_name;
5811 if (h != NULL)
5812 sym_name = h->root.root.string;
5813 else
5814 sym_name = bfd_elf_local_sym_name (ibfd, sym);
5815
1e2f5b6e 5816 (*_bfd_error_handler)
d003868e
AM		 5817 (_("%B: undefined sym `%s' in .opd section"),
5818 ibfd, sym_name);
b34976b6 5819 need_edit = FALSE;
1e2f5b6e
AM		 5820 break;
5821 }
5822
51020317
AM		 5823 /* opd entries are always for functions defined in the
5824 current input bfd. If the symbol isn't defined in the
5825 input bfd, then we won't be using the function in this
5826 bfd; It must be defined in a linkonce section in another
5827 bfd, or is weak. It's also possible that we are
5828 discarding the function due to a linker script /DISCARD/,
5829 which we test for via the output_section. */
5830 if (sym_sec->owner != ibfd
5831 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 5832 need_edit = TRUE;
1e2f5b6e 5833
50bc7936 5834 rel += 2;
3f764659
JJ		 5835 if (rel == relend
5836 || (rel + 1 == relend && rel->r_offset == offset + 16))
5837 {
5838 if (sec->size == offset + 24)
5839 {
5840 need_pad = NULL;
5841 break;
5842 }
5843 if (rel == relend && sec->size == offset + 16)
5844 {
5845 cnt_16b++;
5846 break;
5847 }
5848 goto broken_opd;
5849 }
5850
5851 if (rel->r_offset == offset + 24)
5852 offset += 24;
5853 else if (rel->r_offset != offset + 16)
5854 goto broken_opd;
5855 else if (rel + 1 < relend
5856 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
5857 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
5858 {
5859 offset += 16;
5860 cnt_16b++;
5861 }
5862 else if (rel + 2 < relend
5863 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
5864 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
5865 {
5866 offset += 24;
5867 rel += 1;
5868 }
5869 else
5870 goto broken_opd;
1e2f5b6e
AM		 5871 }
5872
3f764659
JJ		 5873 add_aux_fields = non_overlapping && cnt_16b > 0;
5874
5875 if (need_edit || add_aux_fields)
1e2f5b6e
AM		 5876 {
5877 Elf_Internal_Rela *write_rel;
5878 bfd_byte *rptr, *wptr;
3f764659 5879 bfd_byte *new_contents = NULL;
b34976b6 5880 bfd_boolean skip;
3f764659 5881 long opd_ent_size;
1e2f5b6e
AM		 5882
5883 /* This seems a waste of time as input .opd sections are all
5884 zeros as generated by gcc, but I suppose there's no reason
5885 this will always be so. We might start putting something in
5886 the third word of .opd entries. */
5887 if ((sec->flags & SEC_IN_MEMORY) == 0)
5888 {
eea6121a
AM		 5889 bfd_byte *loc;
5890 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 5891 {
eea6121a
AM		 5892 if (loc != NULL)
5893 free (loc);
50bc7936 5894 error_ret:
6cdc0ccc
AM		 5895 if (local_syms != NULL
5896 && symtab_hdr->contents != (unsigned char *) local_syms)
5897 free (local_syms);
6cdc0ccc
AM		 5898 if (elf_section_data (sec)->relocs != relstart)
5899 free (relstart);
b34976b6 5900 return FALSE;
6cdc0ccc 5901 }
1e2f5b6e
AM		 5902 sec->contents = loc;
5903 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
5904 }
5905
5906 elf_section_data (sec)->relocs = relstart;
5907
5908 wptr = sec->contents;
5909 rptr = sec->contents;
3f764659
JJ		 5910 new_contents = sec->contents;
5911
5912 if (add_aux_fields)
5913 {
5914 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
5915 if (new_contents == NULL)
5916 return FALSE;
5917 need_pad = FALSE;
5918 wptr = new_contents;
5919 }
5920
1e2f5b6e 5921 write_rel = relstart;
b34976b6 5922 skip = FALSE;
1e2f5b6e 5923 offset = 0;
3f764659 5924 opd_ent_size = 0;
1e2f5b6e
AM		 5925 for (rel = relstart; rel < relend; rel++)
5926 {
50bc7936
AM		 5927 unsigned long r_symndx;
5928 asection *sym_sec;
5929 struct elf_link_hash_entry *h;
5930 Elf_Internal_Sym *sym;
5931
5932 r_symndx = ELF64_R_SYM (rel->r_info);
5933 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 5934 r_symndx, ibfd))
50bc7936
AM		 5935 goto error_ret;
5936
1e2f5b6e
AM		 5937 if (rel->r_offset == offset)
5938 {
50bc7936 5939 struct ppc_link_hash_entry *fdh = NULL;
3f764659
JJ		 5940
5941 /* See if the .opd entry is full 24 byte or
5942 16 byte (with fd_aux entry overlapped with next
5943 fd_func). */
5944 opd_ent_size = 24;
5945 if ((rel + 2 == relend && sec->size == offset + 16)
5946 || (rel + 3 < relend
5947 && rel[2].r_offset == offset + 16
5948 && rel[3].r_offset == offset + 24
5949 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
5950 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
5951 opd_ent_size = 16;
5952
4025353c
AM		 5953 if (h != NULL
5954 && h->root.root.string[0] == '.')
50bc7936
AM		 5955 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
5956 ppc_hash_table (info));
1e2f5b6e 5957
51020317
AM		 5958 skip = (sym_sec->owner != ibfd
5959 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 5960 if (skip)
5961 {
4025353c 5962 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 5963 {
5964 /* Arrange for the function descriptor sym
5965 to be dropped. */
d6fe2dc1
AM		 5966 fdh->elf.root.u.def.value = 0;
5967 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 5968 }
3f764659 5969 opd_adjust[rel->r_offset / 8] = -1;
a4aa0fb7
AM		 5970 }
5971 else
1e2f5b6e
AM		 5972 {
5973 /* We'll be keeping this opd entry. */
5974
4025353c 5975 if (fdh != NULL)
1e2f5b6e 5976 {
754021d0
AM		 5977 /* Redefine the function descriptor symbol to
5978 this location in the opd section. It is
5979 necessary to update the value here rather
5980 than using an array of adjustments as we do
5981 for local symbols, because various places
5982 in the generic ELF code use the value
5983 stored in u.def.value. */
3f764659 5984 fdh->elf.root.u.def.value = wptr - new_contents;
754021d0 5985 fdh->adjust_done = 1;
1e2f5b6e 5986 }
754021d0
AM		 5987
5988 /* Local syms are a bit tricky. We could
5989 tweak them as they can be cached, but
5990 we'd need to look through the local syms
5991 for the function descriptor sym which we
5992 don't have at the moment. So keep an
5993 array of adjustments. */
3f764659
JJ		 5994 opd_adjust[rel->r_offset / 8]
5995 = (wptr - new_contents) - (rptr - sec->contents);
1e2f5b6e
AM		 5996
5997 if (wptr != rptr)
3f764659
JJ		 5998 memcpy (wptr, rptr, opd_ent_size);
5999 wptr += opd_ent_size;
6000 if (add_aux_fields && opd_ent_size == 16)
6001 {
6002 memset (wptr, '\0', 8);
6003 wptr += 8;
6004 }
1e2f5b6e 6005 }
3f764659
JJ		 6006 rptr += opd_ent_size;
6007 offset += opd_ent_size;
1e2f5b6e
AM		 6008 }
6009
50bc7936
AM		 6010 if (skip)
6011 {
6012 BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info)));
6013 if (info->shared)
6014 {
6015 /* We won't be needing dynamic relocs here. */
6016 struct ppc_dyn_relocs **pp;
6017 struct ppc_dyn_relocs *p;
6018
6019 if (h != NULL)
6020 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
6021 else if (sym_sec != NULL)
6022 pp = ((struct ppc_dyn_relocs **)
6023 &elf_section_data (sym_sec)->local_dynrel);
6024 else
6025 pp = ((struct ppc_dyn_relocs **)
6026 &elf_section_data (sec)->local_dynrel);
6027 while ((p = *pp) != NULL)
6028 {
6029 if (p->sec == sec)
6030 {
6031 p->count -= 1;
6032 if (p->count == 0)
d37c89e5 6033 *pp = p->next;
50bc7936
AM		 6034 break;
6035 }
6036 pp = &p->next;
6037 }
6038 }
6039 }
6040 else
1e2f5b6e 6041 {
50bc7936
AM		 6042 /* We need to adjust any reloc offsets to point to the
6043 new opd entries. While we're at it, we may as well
6044 remove redundant relocs. */
3f764659 6045 rel->r_offset += opd_adjust[(offset - opd_ent_size) / 8];
1e2f5b6e
AM		 6046 if (write_rel != rel)
6047 memcpy (write_rel, rel, sizeof (*rel));
6048 ++write_rel;
6049 }
6050 }
6051
3f764659 6052 sec->size = wptr - new_contents;
1e2f5b6e 6053 sec->reloc_count = write_rel - relstart;
3f764659
JJ		 6054 if (add_aux_fields)
6055 {
6056 free (sec->contents);
6057 sec->contents = new_contents;
6058 }
6059
cdcf6e38
AM		 6060 /* Fudge the size too, as this is used later in
6061 elf_bfd_final_link if we are emitting relocs. */
6062 elf_section_data (sec)->rel_hdr.sh_size
6063 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
6064 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
754021d0 6065 some_edited = TRUE;
1e2f5b6e 6066 }
6cdc0ccc 6067 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 6068 free (relstart);
6cdc0ccc 6069
411e1bfb
AM		 6070 if (local_syms != NULL
6071 && symtab_hdr->contents != (unsigned char *) local_syms)
6072 {
6073 if (!info->keep_memory)
6074 free (local_syms);
6075 else
6076 symtab_hdr->contents = (unsigned char *) local_syms;
6077 }
6078 }
6079
754021d0
AM		 6080 if (some_edited)
6081 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
6082
3f764659
JJ		 6083 /* If we are doing a final link and the last .opd entry is just 16 byte
6084 long, add a 8 byte padding after it. */
6085 if (need_pad != NULL && !info->relocatable)
6086 {
6087 bfd_byte *p;
6088
6089 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
6090 {
6091 BFD_ASSERT (need_pad->size > 0);
6092
6093 p = bfd_malloc (need_pad->size + 8);
6094 if (p == NULL)
6095 return FALSE;
6096
6097 if (! bfd_get_section_contents (need_pad->owner, need_pad,
6098 p, 0, need_pad->size))
6099 return FALSE;
6100
6101 need_pad->contents = p;
6102 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6103 }
6104 else
6105 {
6106 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
6107 if (p == NULL)
6108 return FALSE;
6109
6110 need_pad->contents = p;
6111 }
6112
6113 memset (need_pad->contents + need_pad->size, 0, 8);
6114 need_pad->size += 8;
6115 }
6116
411e1bfb
AM		 6117 return TRUE;
6118}
6119
e1918d23 6120/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 6121
e1918d23 6122asection *
4ce794b7 6123ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb 6124{
411e1bfb
AM		 6125 struct ppc_link_hash_table *htab;
6126
411e1bfb 6127 htab = ppc_hash_table (info);
a48ebf4d
AM		 6128 if (htab->tls_get_addr != NULL)
6129 {
8387904d 6130 struct ppc_link_hash_entry *h = htab->tls_get_addr;
a48ebf4d 6131
8387904d
AM		 6132 while (h->elf.root.type == bfd_link_hash_indirect
6133 || h->elf.root.type == bfd_link_hash_warning)
6134 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
a48ebf4d
AM		 6135
6136 htab->tls_get_addr = h;
8387904d
AM		 6137
6138 if (htab->tls_get_addr_fd == NULL
6139 && h->oh != NULL
6140 && h->oh->is_func_descriptor)
6141 htab->tls_get_addr_fd = h->oh;
6142 }
6143
6144 if (htab->tls_get_addr_fd != NULL)
6145 {
6146 struct ppc_link_hash_entry *h = htab->tls_get_addr_fd;
6147
6148 while (h->elf.root.type == bfd_link_hash_indirect
6149 || h->elf.root.type == bfd_link_hash_warning)
6150 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6151
6152 htab->tls_get_addr_fd = h;
a48ebf4d
AM		 6153 }
6154
e1918d23 6155 return _bfd_elf_tls_setup (obfd, info);
951fd09b 6156}
411e1bfb 6157
951fd09b
AM		 6158/* Run through all the TLS relocs looking for optimization
6159 opportunities. The linker has been hacked (see ppc64elf.em) to do
6160 a preliminary section layout so that we know the TLS segment
6161 offsets. We can't optimize earlier because some optimizations need
6162 to know the tp offset, and we need to optimize before allocating
6163 dynamic relocations. */
6164
6165bfd_boolean
4ce794b7 6166ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 6167{
6168 bfd *ibfd;
6169 asection *sec;
6170 struct ppc_link_hash_table *htab;
6171
1049f94e 6172 if (info->relocatable || info->shared)
411e1bfb
AM		 6173 return TRUE;
6174
951fd09b 6175 htab = ppc_hash_table (info);
411e1bfb
AM		 6176 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6177 {
6178 Elf_Internal_Sym *locsyms = NULL;
6179
6180 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6181 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
6182 {
6183 Elf_Internal_Rela *relstart, *rel, *relend;
6184 int expecting_tls_get_addr;
6185
6186 /* Read the relocations. */
4ce794b7 6187 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6188 info->keep_memory);
411e1bfb
AM		 6189 if (relstart == NULL)
6190 return FALSE;
6191
6192 expecting_tls_get_addr = 0;
6193 relend = relstart + sec->reloc_count;
6194 for (rel = relstart; rel < relend; rel++)
6195 {
6196 enum elf_ppc64_reloc_type r_type;
6197 unsigned long r_symndx;
6198 struct elf_link_hash_entry *h;
6199 Elf_Internal_Sym *sym;
6200 asection *sym_sec;
e7b938ca
AM		 6201 char *tls_mask;
6202 char tls_set, tls_clear, tls_type = 0;
411e1bfb 6203 bfd_vma value;
951fd09b 6204 bfd_boolean ok_tprel, is_local;
411e1bfb
AM		 6205
6206 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 6207 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM		 6208 r_symndx, ibfd))
6209 {
6210 err_free_rel:
6211 if (elf_section_data (sec)->relocs != relstart)
6212 free (relstart);
6213 if (locsyms != NULL
6214 && (elf_tdata (ibfd)->symtab_hdr.contents
6215 != (unsigned char *) locsyms))
6216 free (locsyms);
6217 return FALSE;
6218 }
6219
6220 if (h != NULL)
6221 {
6222 if (h->root.type != bfd_link_hash_defined
6223 && h->root.type != bfd_link_hash_defweak)
6224 continue;
6225 value = h->root.u.def.value;
6226 }
6227 else
4025353c
AM		 6228 /* Symbols referenced by TLS relocs must be of type
6229 STT_TLS. So no need for .opd local sym adjust. */
6230 value = sym->st_value;
951fd09b 6231
411e1bfb 6232 ok_tprel = FALSE;
951fd09b
AM		 6233 is_local = FALSE;
6234 if (h == NULL
6235 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 6236 {
951fd09b 6237 is_local = TRUE;
411e1bfb
AM		 6238 value += sym_sec->output_offset;
6239 value += sym_sec->output_section->vma;
e1918d23 6240 value -= htab->elf.tls_sec->vma;
411e1bfb
AM		 6241 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
6242 < (bfd_vma) 1 << 32);
6243 }
6244
4ce794b7 6245 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM		 6246 switch (r_type)
6247 {
6248 case R_PPC64_GOT_TLSLD16:
6249 case R_PPC64_GOT_TLSLD16_LO:
6250 case R_PPC64_GOT_TLSLD16_HI:
6251 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM		 6252 /* These relocs should never be against a symbol
6253 defined in a shared lib. Leave them alone if
6254 that turns out to be the case. */
e717da7e 6255 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM		 6256 if (!is_local)
6257 continue;
6258
951fd09b
AM		 6259 /* LD -> LE */
6260 tls_set = 0;
6261 tls_clear = TLS_LD;
e7b938ca 6262 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 6263 expecting_tls_get_addr = 1;
6264 break;
6265
6266 case R_PPC64_GOT_TLSGD16:
6267 case R_PPC64_GOT_TLSGD16_LO:
6268 case R_PPC64_GOT_TLSGD16_HI:
6269 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 6270 if (ok_tprel)
411e1bfb
AM		 6271 /* GD -> LE */
6272 tls_set = 0;
6273 else
6274 /* GD -> IE */
951fd09b
AM		 6275 tls_set = TLS_TLS | TLS_TPRELGD;
6276 tls_clear = TLS_GD;
e7b938ca 6277 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 6278 expecting_tls_get_addr = 1;
6279 break;
6280
6281 case R_PPC64_GOT_TPREL16_DS:
6282 case R_PPC64_GOT_TPREL16_LO_DS:
6283 case R_PPC64_GOT_TPREL16_HI:
6284 case R_PPC64_GOT_TPREL16_HA:
6285 expecting_tls_get_addr = 0;
6286 if (ok_tprel)
6287 {
6288 /* IE -> LE */
6289 tls_set = 0;
6290 tls_clear = TLS_TPREL;
e7b938ca 6291 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM		 6292 break;
6293 }
6294 else
6295 continue;
6296
6297 case R_PPC64_REL14:
6298 case R_PPC64_REL14_BRTAKEN:
6299 case R_PPC64_REL14_BRNTAKEN:
6300 case R_PPC64_REL24:
6301 if (h != NULL
8387904d
AM		 6302 && (h == &htab->tls_get_addr->elf
6303 || h == &htab->tls_get_addr_fd->elf))
411e1bfb
AM		 6304 {
6305 if (!expecting_tls_get_addr
6306 && rel != relstart
6307 && ((ELF64_R_TYPE (rel[-1].r_info)
6308 == R_PPC64_TOC16)
6309 || (ELF64_R_TYPE (rel[-1].r_info)
6310 == R_PPC64_TOC16_LO)))
6311 {
6312 /* Check for toc tls entries. */
6313 char *toc_tls;
951fd09b 6314 int retval;
411e1bfb 6315
0d4792f7 6316 retval = get_tls_mask (&toc_tls, NULL, &locsyms,
951fd09b
AM		 6317 rel - 1, ibfd);
6318 if (retval == 0)
411e1bfb
AM		 6319 goto err_free_rel;
6320 if (toc_tls != NULL)
951fd09b 6321 expecting_tls_get_addr = retval > 1;
411e1bfb
AM		 6322 }
6323
6324 if (expecting_tls_get_addr)
6325 {
6326 struct plt_entry *ent;
6327 for (ent = h->plt.plist; ent; ent = ent->next)
6328 if (ent->addend == 0)
6329 {
6330 if (ent->plt.refcount > 0)
6331 ent->plt.refcount -= 1;
6332 break;
6333 }
6334 }
6335 }
6336 expecting_tls_get_addr = 0;
6337 continue;
6338
6339 case R_PPC64_TPREL64:
6340 expecting_tls_get_addr = 0;
6341 if (ok_tprel)
6342 {
6343 /* IE -> LE */
6344 tls_set = TLS_EXPLICIT;
6345 tls_clear = TLS_TPREL;
6346 break;
6347 }
6348 else
6349 continue;
6350
6351 case R_PPC64_DTPMOD64:
6352 expecting_tls_get_addr = 0;
951fd09b
AM		 6353 if (rel + 1 < relend
6354 && (rel[1].r_info
6355 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
6356 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 6357 {
951fd09b 6358 if (ok_tprel)
411e1bfb 6359 /* GD -> LE */
951fd09b 6360 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM		 6361 else
6362 /* GD -> IE */
951fd09b
AM		 6363 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
6364 tls_clear = TLS_GD;
411e1bfb
AM		 6365 }
6366 else
6367 {
951fd09b
AM		 6368 if (!is_local)
6369 continue;
6370
6371 /* LD -> LE */
6372 tls_set = TLS_EXPLICIT;
6373 tls_clear = TLS_LD;
411e1bfb
AM		 6374 }
6375 break;
6376
6377 default:
6378 expecting_tls_get_addr = 0;
6379 continue;
6380 }
6381
6382 if ((tls_set & TLS_EXPLICIT) == 0)
6383 {
6384 struct got_entry *ent;
6385
6386 /* Adjust got entry for this reloc. */
6387 if (h != NULL)
6388 ent = h->got.glist;
6389 else
6390 ent = elf_local_got_ents (ibfd)[r_symndx];
6391
6392 for (; ent != NULL; ent = ent->next)
6393 if (ent->addend == rel->r_addend
e717da7e 6394 && ent->owner == ibfd
e7b938ca 6395 && ent->tls_type == tls_type)
411e1bfb
AM		 6396 break;
6397 if (ent == NULL)
6398 abort ();
6399
6400 if (tls_set == 0)
6401 {
6402 /* We managed to get rid of a got entry. */
6403 if (ent->got.refcount > 0)
6404 ent->got.refcount -= 1;
6405 }
411e1bfb
AM		 6406 }
6407 else if (h != NULL)
6408 {
6409 struct ppc_link_hash_entry * eh;
6410 struct ppc_dyn_relocs **pp;
6411 struct ppc_dyn_relocs *p;
6412
6413 /* Adjust dynamic relocs. */
6414 eh = (struct ppc_link_hash_entry *) h;
6415 for (pp = &eh->dyn_relocs;
6416 (p = *pp) != NULL;
6417 pp = &p->next)
6418 if (p->sec == sec)
6419 {
6420 /* If we got rid of a DTPMOD/DTPREL reloc
6421 pair then we'll lose one or two dyn
6422 relocs. */
951fd09b 6423 if (tls_set == (TLS_EXPLICIT | TLS_GD))
411e1bfb 6424 p->count -= 1;
951fd09b 6425 p->count -= 1;
411e1bfb
AM		 6426 if (p->count == 0)
6427 *pp = p->next;
6428 break;
6429 }
6430 }
6431
e7b938ca
AM		 6432 *tls_mask |= tls_set;
6433 *tls_mask &= ~tls_clear;
411e1bfb
AM		 6434 }
6435
6436 if (elf_section_data (sec)->relocs != relstart)
6437 free (relstart);
6438 }
6439
6440 if (locsyms != NULL
6441 && (elf_tdata (ibfd)->symtab_hdr.contents
6442 != (unsigned char *) locsyms))
6cdc0ccc
AM		 6443 {
6444 if (!info->keep_memory)
411e1bfb 6445 free (locsyms);
6cdc0ccc 6446 else
411e1bfb 6447 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 6448 }
1e2f5b6e 6449 }
b34976b6 6450 return TRUE;
1e2f5b6e 6451}
b34976b6 6452
65f38f15
AM		 6453/* Allocate space in .plt, .got and associated reloc sections for
6454 dynamic relocs. */
5bd4f169 6455
b34976b6 6456static bfd_boolean
4ce794b7 6457allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 6458{
65f38f15
AM		 6459 struct bfd_link_info *info;
6460 struct ppc_link_hash_table *htab;
5bd4f169 6461 asection *s;
65f38f15
AM		 6462 struct ppc_link_hash_entry *eh;
6463 struct ppc_dyn_relocs *p;
411e1bfb 6464 struct got_entry *gent;
5bd4f169 6465
e92d460e 6466 if (h->root.type == bfd_link_hash_indirect)
b34976b6 6467 return TRUE;
5bd4f169 6468
e92d460e
AM		 6469 if (h->root.type == bfd_link_hash_warning)
6470 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6471
65f38f15
AM		 6472 info = (struct bfd_link_info *) inf;
6473 htab = ppc_hash_table (info);
5bd4f169 6474
65f38f15 6475 if (htab->elf.dynamic_sections_created
411e1bfb 6476 && h->dynindx != -1
9c7a29a3 6477 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 6478 {
411e1bfb
AM		 6479 struct plt_entry *pent;
6480 bfd_boolean doneone = FALSE;
6481 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
6482 if (pent->plt.refcount > 0)
6483 {
411e1bfb
AM		 6484 /* If this is the first .plt entry, make room for the special
6485 first entry. */
4ce794b7 6486 s = htab->plt;
eea6121a
AM		 6487 if (s->size == 0)
6488 s->size += PLT_INITIAL_ENTRY_SIZE;
411e1bfb 6489
eea6121a 6490 pent->plt.offset = s->size;
411e1bfb
AM		 6491
6492 /* Make room for this entry. */
eea6121a 6493 s->size += PLT_ENTRY_SIZE;
411e1bfb
AM		 6494
6495 /* Make room for the .glink code. */
4ce794b7 6496 s = htab->glink;
eea6121a
AM		 6497 if (s->size == 0)
6498 s->size += GLINK_CALL_STUB_SIZE;
411e1bfb 6499 /* We need bigger stubs past index 32767. */
eea6121a
AM		 6500 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
6501 s->size += 4;
6502 s->size += 2*4;
411e1bfb
AM		 6503
6504 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 6505 s = htab->relplt;
eea6121a 6506 s->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 6507 doneone = TRUE;
6508 }
6509 else
6510 pent->plt.offset = (bfd_vma) -1;
6511 if (!doneone)
65f38f15 6512 {
411e1bfb 6513 h->plt.plist = NULL;
65f38f15
AM		 6514 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
6515 }
6516 }
6517 else
6518 {
411e1bfb 6519 h->plt.plist = NULL;
65f38f15
AM		 6520 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
6521 }
6522
951fd09b
AM		 6523 eh = (struct ppc_link_hash_entry *) h;
6524 /* Run through the TLS GD got entries first if we're changing them
6525 to TPREL. */
e7b938ca 6526 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 6527 for (gent = h->got.glist; gent != NULL; gent = gent->next)
6528 if (gent->got.refcount > 0
6529 && (gent->tls_type & TLS_GD) != 0)
6530 {
6531 /* This was a GD entry that has been converted to TPREL. If
6532 there happens to be a TPREL entry we can use that one. */
6533 struct got_entry *ent;
6534 for (ent = h->got.glist; ent != NULL; ent = ent->next)
6535 if (ent->got.refcount > 0
6536 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 6537 && ent->addend == gent->addend
6538 && ent->owner == gent->owner)
951fd09b
AM		 6539 {
6540 gent->got.refcount = 0;
6541 break;
6542 }
6543
6544 /* If not, then we'll be using our own TPREL entry. */
6545 if (gent->got.refcount != 0)
6546 gent->tls_type = TLS_TLS | TLS_TPREL;
6547 }
6548
411e1bfb
AM		 6549 for (gent = h->got.glist; gent != NULL; gent = gent->next)
6550 if (gent->got.refcount > 0)
6551 {
951fd09b
AM		 6552 bfd_boolean dyn;
6553
411e1bfb 6554 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 6555 Undefined weak syms won't yet be marked as dynamic,
6556 nor will all TLS symbols. */
411e1bfb
AM		 6557 if (h->dynindx == -1
6558 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
6559 {
c152c796 6560 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM		 6561 return FALSE;
6562 }
65f38f15 6563
d881513a
AM		 6564 if ((gent->tls_type & TLS_LD) != 0
6565 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 6566 {
e717da7e 6567 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 6568 continue;
411e1bfb 6569 }
951fd09b 6570
e717da7e 6571 s = ppc64_elf_tdata (gent->owner)->got;
eea6121a
AM		 6572 gent->got.offset = s->size;
6573 s->size
d881513a 6574 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 6575 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 6576 if ((info->shared
6577 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
6578 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
6579 || h->root.type != bfd_link_hash_undefweak))
eea6121a 6580 ppc64_elf_tdata (gent->owner)->relgot->size
e7b938ca 6581 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 6582 ? 2 * sizeof (Elf64_External_Rela)
6583 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 6584 }
6585 else
6586 gent->got.offset = (bfd_vma) -1;
65f38f15 6587
65f38f15 6588 if (eh->dyn_relocs == NULL)
b34976b6 6589 return TRUE;
65f38f15
AM		 6590
6591 /* In the shared -Bsymbolic case, discard space allocated for
6592 dynamic pc-relative relocs against symbols which turn out to be
6593 defined in regular objects. For the normal shared case, discard
6594 space for relocs that have become local due to symbol visibility
6595 changes. */
6596
6597 if (info->shared)
6598 {
9c7a29a3
AM		 6599 /* Relocs that use pc_count are those that appear on a call insn,
6600 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
6601 generated via assembly. We want calls to protected symbols to
6602 resolve directly to the function rather than going via the plt.
6603 If people want function pointer comparisons to work as expected
6604 then they should avoid writing weird assembly. */
09695f56 6605 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 6606 {
6607 struct ppc_dyn_relocs **pp;
6608
6609 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 6610 {
65f38f15
AM		 6611 p->count -= p->pc_count;
6612 p->pc_count = 0;
6613 if (p->count == 0)
6614 *pp = p->next;
6615 else
6616 pp = &p->next;
5bd4f169 6617 }
65f38f15 6618 }
4e795f50
AM		 6619
6620 /* Also discard relocs on undefined weak syms with non-default
6621 visibility. */
6622 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
6623 && h->root.type == bfd_link_hash_undefweak)
6624 eh->dyn_relocs = NULL;
65f38f15 6625 }
f4656909 6626 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 6627 {
6628 /* For the non-shared case, discard space for relocs against
6629 symbols which turn out to need copy relocs or are not
6630 dynamic. */
6631
6632 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 6633 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
6634 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
65f38f15
AM		 6635 {
6636 /* Make sure this symbol is output as a dynamic symbol.
6637 Undefined weak syms won't yet be marked as dynamic. */
6638 if (h->dynindx == -1
6639 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
6640 {
c152c796 6641 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 6642 return FALSE;
65f38f15
AM		 6643 }
6644
6645 /* If that succeeded, we know we'll be keeping all the
6646 relocs. */
6647 if (h->dynindx != -1)
6648 goto keep;
6649 }
6650
6651 eh->dyn_relocs = NULL;
6652
ec338859 6653 keep: ;
65f38f15
AM		 6654 }
6655
6656 /* Finally, allocate space. */
6657 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6658 {
6659 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 6660 sreloc->size += p->count * sizeof (Elf64_External_Rela);
65f38f15
AM		 6661 }
6662
b34976b6 6663 return TRUE;
65f38f15
AM		 6664}
6665
6666/* Find any dynamic relocs that apply to read-only sections. */
6667
b34976b6 6668static bfd_boolean
4ce794b7 6669readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 6670{
6671 struct ppc_link_hash_entry *eh;
6672 struct ppc_dyn_relocs *p;
6673
e92d460e
AM		 6674 if (h->root.type == bfd_link_hash_warning)
6675 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6676
65f38f15
AM		 6677 eh = (struct ppc_link_hash_entry *) h;
6678 for (p = eh->dyn_relocs; p != NULL; p = p->next)
6679 {
6680 asection *s = p->sec->output_section;
6681
6682 if (s != NULL && (s->flags & SEC_READONLY) != 0)
6683 {
4ce794b7 6684 struct bfd_link_info *info = inf;
65f38f15
AM		 6685
6686 info->flags |= DF_TEXTREL;
6687
6688 /* Not an error, just cut short the traversal. */
b34976b6 6689 return FALSE;
65f38f15
AM		 6690 }
6691 }
b34976b6 6692 return TRUE;
65f38f15
AM		 6693}
6694
6695/* Set the sizes of the dynamic sections. */
6696
b34976b6 6697static bfd_boolean
4ce794b7
AM		 6698ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
6699 struct bfd_link_info *info)
65f38f15
AM		 6700{
6701 struct ppc_link_hash_table *htab;
6702 bfd *dynobj;
6703 asection *s;
b34976b6 6704 bfd_boolean relocs;
65f38f15
AM		 6705 bfd *ibfd;
6706
6707 htab = ppc_hash_table (info);
6708 dynobj = htab->elf.dynobj;
6709 if (dynobj == NULL)
6710 abort ();
6711
6712 if (htab->elf.dynamic_sections_created)
6713 {
6714 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 6715 if (info->executable)
65f38f15
AM		 6716 {
6717 s = bfd_get_section_by_name (dynobj, ".interp");
6718 if (s == NULL)
6719 abort ();
eea6121a 6720 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM		 6721 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
6722 }
6723 }
6724
6725 /* Set up .got offsets for local syms, and space for local dynamic
6726 relocs. */
6727 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6728 {
411e1bfb
AM		 6729 struct got_entry **lgot_ents;
6730 struct got_entry **end_lgot_ents;
e7b938ca 6731 char *lgot_masks;
65f38f15
AM		 6732 bfd_size_type locsymcount;
6733 Elf_Internal_Shdr *symtab_hdr;
6734 asection *srel;
6735
6736 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
6737 continue;
6738
e717da7e
AM		 6739 if (ppc64_tlsld_got (ibfd)->refcount > 0)
6740 {
6741 s = ppc64_elf_tdata (ibfd)->got;
eea6121a
AM		 6742 ppc64_tlsld_got (ibfd)->offset = s->size;
6743 s->size += 16;
e717da7e
AM		 6744 if (info->shared)
6745 {
6746 srel = ppc64_elf_tdata (ibfd)->relgot;
eea6121a 6747 srel->size += sizeof (Elf64_External_Rela);
e717da7e
AM		 6748 }
6749 }
6750 else
6751 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
6752
65f38f15
AM		 6753 for (s = ibfd->sections; s != NULL; s = s->next)
6754 {
ec338859 6755 struct ppc_dyn_relocs *p;
65f38f15 6756
ec338859
AM		 6757 for (p = *((struct ppc_dyn_relocs **)
6758 &elf_section_data (s)->local_dynrel);
6759 p != NULL;
6760 p = p->next)
65f38f15 6761 {
ec338859
AM		 6762 if (!bfd_is_abs_section (p->sec)
6763 && bfd_is_abs_section (p->sec->output_section))
6764 {
6765 /* Input section has been discarded, either because
6766 it is a copy of a linkonce section or due to
6767 linker script /DISCARD/, so we'll be discarding
6768 the relocs too. */
6769 }
248866a8 6770 else if (p->count != 0)
ec338859
AM		 6771 {
6772 srel = elf_section_data (p->sec)->sreloc;
eea6121a 6773 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 6774 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
6775 info->flags |= DF_TEXTREL;
ec338859 6776 }
65f38f15
AM		 6777 }
6778 }
6779
411e1bfb
AM		 6780 lgot_ents = elf_local_got_ents (ibfd);
6781 if (!lgot_ents)
65f38f15
AM		 6782 continue;
6783
6784 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6785 locsymcount = symtab_hdr->sh_info;
411e1bfb 6786 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 6787 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 6788 s = ppc64_elf_tdata (ibfd)->got;
6789 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 6790 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 6791 {
411e1bfb
AM		 6792 struct got_entry *ent;
6793
6794 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
6795 if (ent->got.refcount > 0)
6796 {
e7b938ca 6797 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 6798 {
e717da7e 6799 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 6800 {
eea6121a
AM		 6801 ppc64_tlsld_got (ibfd)->offset = s->size;
6802 s->size += 16;
411e1bfb 6803 if (info->shared)
eea6121a 6804 srel->size += sizeof (Elf64_External_Rela);
411e1bfb 6805 }
e717da7e 6806 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM		 6807 }
6808 else
6809 {
eea6121a 6810 ent->got.offset = s->size;
e7b938ca 6811 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb 6812 {
eea6121a 6813 s->size += 16;
411e1bfb 6814 if (info->shared)
eea6121a 6815 srel->size += 2 * sizeof (Elf64_External_Rela);
411e1bfb
AM		 6816 }
6817 else
6818 {
eea6121a 6819 s->size += 8;
411e1bfb 6820 if (info->shared)
eea6121a 6821 srel->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 6822 }
6823 }
6824 }
6825 else
6826 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 6827 }
6828 }
6829
6830 /* Allocate global sym .plt and .got entries, and space for global
6831 sym dynamic relocs. */
4ce794b7 6832 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM		 6833
6834 /* We now have determined the sizes of the various dynamic sections.
6835 Allocate memory for them. */
b34976b6 6836 relocs = FALSE;
65f38f15
AM		 6837 for (s = dynobj->sections; s != NULL; s = s->next)
6838 {
6839 if ((s->flags & SEC_LINKER_CREATED) == 0)
6840 continue;
6841
4ce794b7 6842 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 6843 /* These haven't been allocated yet; don't strip. */
6844 continue;
e717da7e
AM		 6845 else if (s == htab->got
6846 || s == htab->plt
4ce794b7 6847 || s == htab->glink)
65f38f15
AM		 6848 {
6849 /* Strip this section if we don't need it; see the
6850 comment below. */
5bd4f169 6851 }
65f38f15 6852 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169 6853 {
eea6121a 6854 if (s->size == 0)
5bd4f169
AM		 6855 {
6856 /* If we don't need this section, strip it from the
6857 output file. This is mostly to handle .rela.bss and
6858 .rela.plt. We must create both sections in
6859 create_dynamic_sections, because they must be created
6860 before the linker maps input sections to output
6861 sections. The linker does that before
6862 adjust_dynamic_symbol is called, and it is that
6863 function which decides whether anything needs to go
6864 into these sections. */
5bd4f169
AM		 6865 }
6866 else
6867 {
4ce794b7 6868 if (s != htab->relplt)
b34976b6 6869 relocs = TRUE;
5bd4f169
AM		 6870
6871 /* We use the reloc_count field as a counter if we need
6872 to copy relocs into the output file. */
6873 s->reloc_count = 0;
6874 }
6875 }
65f38f15 6876 else
5bd4f169
AM		 6877 {
6878 /* It's not one of our sections, so don't allocate space. */
6879 continue;
6880 }
6881
eea6121a 6882 if (s->size == 0)
5bd4f169
AM		 6883 {
6884 _bfd_strip_section_from_output (info, s);
6885 continue;
6886 }
6887
5f333394 6888 /* .plt is in the bss section. We don't initialise it. */
680a3378 6889 if (s == htab->plt)
5f333394
AM		 6890 continue;
6891
65f38f15
AM		 6892 /* Allocate memory for the section contents. We use bfd_zalloc
6893 here in case unused entries are not reclaimed before the
6894 section's contents are written out. This should not happen,
411e1bfb
AM		 6895 but this way if it does we get a R_PPC64_NONE reloc in .rela
6896 sections instead of garbage.
6897 We also rely on the section contents being zero when writing
6898 the GOT. */
eea6121a 6899 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 6900 if (s->contents == NULL)
b34976b6 6901 return FALSE;
5bd4f169
AM		 6902 }
6903
e717da7e
AM		 6904 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6905 {
6906 s = ppc64_elf_tdata (ibfd)->got;
6907 if (s != NULL && s != htab->got)
6908 {
eea6121a 6909 if (s->size == 0)
e717da7e
AM		 6910 _bfd_strip_section_from_output (info, s);
6911 else
6912 {
eea6121a 6913 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 6914 if (s->contents == NULL)
6915 return FALSE;
6916 }
6917 }
6918 s = ppc64_elf_tdata (ibfd)->relgot;
6919 if (s != NULL)
6920 {
eea6121a 6921 if (s->size == 0)
e717da7e
AM		 6922 _bfd_strip_section_from_output (info, s);
6923 else
6924 {
eea6121a 6925 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 6926 if (s->contents == NULL)
6927 return FALSE;
6928 relocs = TRUE;
6929 s->reloc_count = 0;
6930 }
6931 }
6932 }
6933
e86ce104 6934 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 6935 {
6936 /* Add some entries to the .dynamic section. We fill in the
6937 values later, in ppc64_elf_finish_dynamic_sections, but we
6938 must add the entries now so that we get the correct size for
6939 the .dynamic section. The DT_DEBUG entry is filled in by the
6940 dynamic linker and used by the debugger. */
dc810e39 6941#define add_dynamic_entry(TAG, VAL) \
5a580b3a 6942 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 6943
36af4a4e 6944 if (info->executable)
5bd4f169 6945 {
dc810e39 6946 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 6947 return FALSE;
5bd4f169
AM		 6948 }
6949
eea6121a 6950 if (htab->plt != NULL && htab->plt->size != 0)
5bd4f169 6951 {
dc810e39
AM		 6952 if (!add_dynamic_entry (DT_PLTGOT, 0)
6953 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6954 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 6955 || !add_dynamic_entry (DT_JMPREL, 0)
6956 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 6957 return FALSE;
5bd4f169
AM		 6958 }
6959
19397422
AM		 6960 if (NO_OPD_RELOCS)
6961 {
6962 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
6963 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 6964 return FALSE;
19397422
AM		 6965 }
6966
5bd4f169
AM		 6967 if (relocs)
6968 {
dc810e39
AM		 6969 if (!add_dynamic_entry (DT_RELA, 0)
6970 || !add_dynamic_entry (DT_RELASZ, 0)
6971 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 6972 return FALSE;
5bd4f169 6973
65f38f15
AM		 6974 /* If any dynamic relocs apply to a read-only section,
6975 then we need a DT_TEXTREL entry. */
248866a8 6976 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 6977 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 6978
65f38f15 6979 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 6980 {
65f38f15 6981 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 6982 return FALSE;
5bd4f169 6983 }
5bd4f169 6984 }
5bd4f169 6985 }
65f38f15 6986#undef add_dynamic_entry
5bd4f169 6987
b34976b6 6988 return TRUE;
5bd4f169
AM		 6989}
6990
721956f4 6991/* Determine the type of stub needed, if any, for a call. */
5bd4f169 6992
4ce794b7
AM		 6993static inline enum ppc_stub_type
6994ppc_type_of_stub (asection *input_sec,
6995 const Elf_Internal_Rela *rel,
6996 struct ppc_link_hash_entry **hash,
6997 bfd_vma destination)
5bd4f169 6998{
721956f4
AM		 6999 struct ppc_link_hash_entry *h = *hash;
7000 bfd_vma location;
7001 bfd_vma branch_offset;
7002 bfd_vma max_branch_offset;
4ce794b7 7003 enum elf_ppc64_reloc_type r_type;
5bd4f169 7004
721956f4
AM		 7005 if (h != NULL)
7006 {
7007 if (h->oh != NULL
8387904d
AM		 7008 && h->oh->is_func_descriptor)
7009 h = h->oh;
7010
7011 if (h->elf.dynindx != -1)
5bd4f169 7012 {
411e1bfb 7013 struct plt_entry *ent;
8387904d
AM		 7014
7015 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 7016 if (ent->addend == rel->r_addend
7017 && ent->plt.offset != (bfd_vma) -1)
7018 {
8387904d 7019 *hash = h;
411e1bfb
AM		 7020 return ppc_stub_plt_call;
7021 }
5bd4f169
AM		 7022 }
7023
ee7de3e6
AM		 7024 if (!(h->elf.root.type == bfd_link_hash_defined
7025 || h->elf.root.type == bfd_link_hash_defweak)
7026 || h->elf.root.u.def.section->output_section == NULL)
721956f4 7027 return ppc_stub_none;
5d1634d7 7028 }
5d1634d7 7029
721956f4
AM		 7030 /* Determine where the call point is. */
7031 location = (input_sec->output_offset
7032 + input_sec->output_section->vma
7033 + rel->r_offset);
5d1634d7 7034
721956f4
AM		 7035 branch_offset = destination - location;
7036 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 7037
721956f4
AM		 7038 /* Determine if a long branch stub is needed. */
7039 max_branch_offset = 1 << 25;
4ce794b7 7040 if (r_type != R_PPC64_REL24)
721956f4 7041 max_branch_offset = 1 << 15;
5d1634d7 7042
721956f4
AM		 7043 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
7044 /* We need a stub. Figure out whether a long_branch or plt_branch
7045 is needed later. */
7046 return ppc_stub_long_branch;
5d1634d7 7047
721956f4 7048 return ppc_stub_none;
5d1634d7
AM		 7049}
7050
7051/* Build a .plt call stub. */
7052
4ce794b7
AM		 7053static inline bfd_byte *
7054build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM		 7055{
7056#define PPC_LO(v) ((v) & 0xffff)
7057#define PPC_HI(v) (((v) >> 16) & 0xffff)
7058#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7059
5d1634d7 7060 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 7061 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM		 7062 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
7063 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 7064 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 7065 offset += 8;
7066 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
7067 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 7068 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 7069 offset += 8;
7070 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
7071 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
7072 bfd_put_32 (obfd, BCTR, p), p += 4;
7073 return p;
7074}
7075
b34976b6 7076static bfd_boolean
4ce794b7 7077ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 7078{
721956f4
AM		 7079 struct ppc_stub_hash_entry *stub_entry;
7080 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 7081 struct bfd_link_info *info;
7082 struct ppc_link_hash_table *htab;
721956f4
AM		 7083 bfd_byte *loc;
7084 bfd_byte *p;
7085 unsigned int indx;
411e1bfb 7086 struct plt_entry *ent;
721956f4
AM		 7087 bfd_vma off;
7088 int size;
5d1634d7 7089
721956f4
AM		 7090 /* Massage our args to the form they really have. */
7091 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 7092 info = in_arg;
5d1634d7 7093
5d1634d7
AM		 7094 htab = ppc_hash_table (info);
7095
721956f4 7096 /* Make a note of the offset within the stubs for this entry. */
eea6121a 7097 stub_entry->stub_offset = stub_entry->stub_sec->size;
97b639ba 7098 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 7099
4ce794b7 7100 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 7101 switch (stub_entry->stub_type)
5d1634d7 7102 {
721956f4 7103 case ppc_stub_long_branch:
ad8e1ba5 7104 case ppc_stub_long_branch_r2off:
721956f4
AM		 7105 /* Branches are relative. This is where we are going to. */
7106 off = (stub_entry->target_value
7107 + stub_entry->target_section->output_offset
7108 + stub_entry->target_section->output_section->vma);
5d1634d7 7109
721956f4
AM		 7110 /* And this is where we are coming from. */
7111 off -= (stub_entry->stub_offset
97b639ba
AM		 7112 + stub_entry->stub_sec->output_offset
7113 + stub_entry->stub_sec->output_section->vma);
e86ce104 7114
ad8e1ba5
AM		 7115 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
7116 size = 4;
7117 else
7118 {
7119 bfd_vma r2off;
7120
7121 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
7122 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 7123 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 7124 loc += 4;
97b639ba 7125 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 7126 loc += 4;
97b639ba 7127 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 7128 loc += 4;
7129 off -= 12;
7130 size = 16;
7131 }
97b639ba 7132 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5
AM		 7133
7134 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
721956f4 7135 break;
e86ce104 7136
721956f4 7137 case ppc_stub_plt_branch:
ad8e1ba5 7138 case ppc_stub_plt_branch_r2off:
721956f4
AM		 7139 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
7140 stub_entry->root.string + 9,
b34976b6 7141 FALSE, FALSE);
721956f4
AM		 7142 if (br_entry == NULL)
7143 {
7144 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
7145 stub_entry->root.string + 9);
b34976b6
AM		 7146 htab->stub_error = TRUE;
7147 return FALSE;
721956f4
AM		 7148 }
7149
7150 off = (stub_entry->target_value
7151 + stub_entry->target_section->output_offset
7152 + stub_entry->target_section->output_section->vma);
7153
4ce794b7
AM		 7154 bfd_put_64 (htab->brlt->owner, off,
7155 htab->brlt->contents + br_entry->offset);
721956f4
AM		 7156
7157 if (info->shared)
7158 {
7159 /* Create a reloc for the branch lookup table entry. */
7160 Elf_Internal_Rela rela;
ad8e1ba5 7161 bfd_byte *rl;
5d1634d7 7162
721956f4 7163 rela.r_offset = (br_entry->offset
4ce794b7
AM		 7164 + htab->brlt->output_offset
7165 + htab->brlt->output_section->vma);
721956f4
AM		 7166 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
7167 rela.r_addend = off;
7168
4ce794b7
AM		 7169 rl = htab->relbrlt->contents;
7170 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
7171 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM		 7172 }
7173
7174 off = (br_entry->offset
4ce794b7
AM		 7175 + htab->brlt->output_offset
7176 + htab->brlt->output_section->vma
7177 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 7178 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 7179
ad8e1ba5 7180 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 7181 {
7182 (*_bfd_error_handler)
e86ce104 7183 (_("linkage table error against `%s'"),
721956f4 7184 stub_entry->root.string);
5d1634d7 7185 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 7186 htab->stub_error = TRUE;
7187 return FALSE;
5d1634d7 7188 }
41bd81ab 7189
721956f4 7190 indx = off;
ad8e1ba5
AM		 7191 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
7192 {
97b639ba 7193 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 7194 loc += 4;
97b639ba 7195 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5
AM		 7196 size = 16;
7197 }
7198 else
7199 {
7200 bfd_vma r2off;
7201
7202 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
7203 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 7204 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 7205 loc += 4;
97b639ba 7206 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 7207 loc += 4;
97b639ba 7208 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 7209 loc += 4;
97b639ba 7210 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 7211 loc += 4;
97b639ba 7212 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 7213 size = 28;
7214 }
7215 loc += 4;
97b639ba 7216 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 7217 loc += 4;
97b639ba 7218 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 7219 break;
5d1634d7 7220
721956f4 7221 case ppc_stub_plt_call:
c862ae31
AM		 7222 /* Do the best we can for shared libraries built without
7223 exporting ".foo" for each "foo". This can happen when symbol
7224 versioning scripts strip all bar a subset of symbols. */
8387904d
AM		 7225 if (stub_entry->h->oh != NULL
7226 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined
34814b9f 7227 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak)
c862ae31
AM		 7228 {
7229 /* Point the symbol at the stub. There may be multiple stubs,
7230 we don't really care; The main thing is to make this sym
8f3bab57
AM		 7231 defined somewhere. Maybe defining the symbol in the stub
7232 section is a silly idea. If we didn't do this, htab->top_id
7233 could disappear. */
34814b9f
AM		 7234 stub_entry->h->oh->elf.root.type = bfd_link_hash_defined;
7235 stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec;
7236 stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset;
c862ae31
AM		 7237 }
7238
721956f4 7239 /* Now build the stub. */
411e1bfb
AM		 7240 off = (bfd_vma) -1;
7241 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
7242 if (ent->addend == stub_entry->addend)
7243 {
7244 off = ent->plt.offset;
7245 break;
7246 }
721956f4
AM		 7247 if (off >= (bfd_vma) -2)
7248 abort ();
7249
7250 off &= ~ (bfd_vma) 1;
4ce794b7
AM		 7251 off += (htab->plt->output_offset
7252 + htab->plt->output_section->vma
7253 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 7254 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 7255
ad8e1ba5 7256 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 7257 {
7258 (*_bfd_error_handler)
7259 (_("linkage table error against `%s'"),
7260 stub_entry->h->elf.root.root.string);
7261 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 7262 htab->stub_error = TRUE;
7263 return FALSE;
721956f4
AM		 7264 }
7265
97b639ba 7266 p = build_plt_stub (htab->stub_bfd, loc, off);
721956f4
AM		 7267 size = p - loc;
7268 break;
7269
7270 default:
7271 BFD_FAIL ();
b34976b6 7272 return FALSE;
721956f4
AM		 7273 }
7274
eea6121a 7275 stub_entry->stub_sec->size += size;
97b639ba
AM		 7276
7277 if (htab->emit_stub_syms
7278 && !(stub_entry->stub_type == ppc_stub_plt_call
8387904d 7279 && stub_entry->h->oh != NULL
34814b9f
AM		 7280 && stub_entry->h->oh->elf.root.type == bfd_link_hash_defined
7281 && stub_entry->h->oh->elf.root.u.def.section == stub_entry->stub_sec
7282 && stub_entry->h->oh->elf.root.u.def.value == stub_entry->stub_offset))
97b639ba
AM		 7283 {
7284 struct elf_link_hash_entry *h;
7285 h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string,
7286 TRUE, FALSE, FALSE);
7287 if (h == NULL)
7288 return FALSE;
7289 if (h->root.type == bfd_link_hash_new)
7290 {
7291 h->root.type = bfd_link_hash_defined;
7292 h->root.u.def.section = stub_entry->stub_sec;
7293 h->root.u.def.value = stub_entry->stub_offset;
7294 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
7295 | ELF_LINK_HASH_DEF_REGULAR
7296 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
7297 | ELF_LINK_FORCED_LOCAL);
7298 }
7299 }
7300
b34976b6 7301 return TRUE;
721956f4
AM		 7302}
7303
7304/* As above, but don't actually build the stub. Just bump offset so
7305 we know stub section sizes, and select plt_branch stubs where
7306 long_branch stubs won't do. */
7307
b34976b6 7308static bfd_boolean
4ce794b7 7309ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 7310{
7311 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 7312 struct bfd_link_info *info;
721956f4
AM		 7313 struct ppc_link_hash_table *htab;
7314 bfd_vma off;
7315 int size;
7316
7317 /* Massage our args to the form they really have. */
7318 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 7319 info = in_arg;
7320
7321 htab = ppc_hash_table (info);
721956f4
AM		 7322
7323 if (stub_entry->stub_type == ppc_stub_plt_call)
7324 {
411e1bfb 7325 struct plt_entry *ent;
58ac9f71 7326 off = (bfd_vma) -1;
411e1bfb
AM		 7327 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
7328 if (ent->addend == stub_entry->addend)
7329 {
7330 off = ent->plt.offset & ~(bfd_vma) 1;
7331 break;
7332 }
58ac9f71 7333 if (off >= (bfd_vma) -2)
411e1bfb 7334 abort ();
4ce794b7
AM		 7335 off += (htab->plt->output_offset
7336 + htab->plt->output_section->vma
7337 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 7338 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 7339
ad8e1ba5 7340 size = PLT_CALL_STUB_SIZE;
4ce794b7 7341 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM		 7342 size += 4;
7343 }
7344 else
7345 {
ad8e1ba5
AM		 7346 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
7347 variants. */
721956f4
AM		 7348 off = (stub_entry->target_value
7349 + stub_entry->target_section->output_offset
7350 + stub_entry->target_section->output_section->vma);
eea6121a 7351 off -= (stub_entry->stub_sec->size
721956f4
AM		 7352 + stub_entry->stub_sec->output_offset
7353 + stub_entry->stub_sec->output_section->vma);
7354
ad8e1ba5
AM		 7355 /* Reset the stub type from the plt variant in case we now
7356 can reach with a shorter stub. */
7357 if (stub_entry->stub_type >= ppc_stub_plt_branch)
7358 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
7359
7360 size = 4;
7361 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
7362 {
7363 off -= 12;
7364 size = 16;
7365 }
7366
7367 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 7368 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
7369 {
7370 struct ppc_branch_hash_entry *br_entry;
7371
7372 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
7373 stub_entry->root.string + 9,
b34976b6 7374 TRUE, FALSE);
721956f4
AM		 7375 if (br_entry == NULL)
7376 {
7377 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
7378 stub_entry->root.string + 9);
b34976b6
AM		 7379 htab->stub_error = TRUE;
7380 return FALSE;
721956f4
AM		 7381 }
7382
7383 if (br_entry->iter != htab->stub_iteration)
7384 {
7385 br_entry->iter = htab->stub_iteration;
eea6121a
AM		 7386 br_entry->offset = htab->brlt->size;
7387 htab->brlt->size += 8;
63bc6f6c
AM		 7388
7389 if (info->shared)
eea6121a 7390 htab->relbrlt->size += sizeof (Elf64_External_Rela);
721956f4 7391 }
ad8e1ba5
AM		 7392
7393 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 7394 size = 16;
ad8e1ba5
AM		 7395 if (stub_entry->stub_type != ppc_stub_plt_branch)
7396 size = 28;
721956f4
AM		 7397 }
7398 }
7399
eea6121a 7400 stub_entry->stub_sec->size += size;
b34976b6 7401 return TRUE;
721956f4
AM		 7402}
7403
7404/* Set up various things so that we can make a list of input sections
7405 for each output section included in the link. Returns -1 on error,
cedb70c5 7406 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 7407
7408int
4ce794b7 7409ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
721956f4
AM		 7410{
7411 bfd *input_bfd;
734b6cf9 7412 int top_id, top_index, id;
721956f4 7413 asection *section;
734b6cf9 7414 asection **input_list;
721956f4
AM		 7415 bfd_size_type amt;
7416 struct ppc_link_hash_table *htab = ppc_hash_table (info);
7417
4ce794b7 7418 if (htab->brlt == NULL)
721956f4
AM		 7419 return 0;
7420
1e2f5b6e 7421 /* Find the top input section id. */
3d6f9012 7422 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 7423 input_bfd != NULL;
7424 input_bfd = input_bfd->link_next)
7425 {
721956f4
AM		 7426 for (section = input_bfd->sections;
7427 section != NULL;
7428 section = section->next)
7429 {
7430 if (top_id < section->id)
7431 top_id = section->id;
7432 }
7433 }
721956f4 7434
8f3bab57 7435 htab->top_id = top_id;
721956f4 7436 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 7437 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 7438 if (htab->stub_group == NULL)
7439 return -1;
7440
3d6f9012
AM		 7441 /* Set toc_off for com, und, abs and ind sections. */
7442 for (id = 0; id < 3; id++)
7443 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 7444
3d6f9012 7445 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 7446
7447 /* We can't use output_bfd->section_count here to find the top output
7448 section index as some sections may have been removed, and
7449 _bfd_strip_section_from_output doesn't renumber the indices. */
7450 for (section = output_bfd->sections, top_index = 0;
7451 section != NULL;
7452 section = section->next)
7453 {
7454 if (top_index < section->index)
7455 top_index = section->index;
7456 }
7457
7458 htab->top_index = top_index;
7459 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 7460 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 7461 htab->input_list = input_list;
7462 if (input_list == NULL)
7463 return -1;
7464
721956f4
AM		 7465 return 1;
7466}
7467
e717da7e
AM		 7468/* The linker repeatedly calls this function for each TOC input section
7469 and linker generated GOT section. Group input bfds such that the toc
7470 within a group is less than 64k in size. Will break with cute linker
7471 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 7472
7473void
4ce794b7 7474ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 7475{
7476 struct ppc_link_hash_table *htab = ppc_hash_table (info);
99877b66
AM		 7477 bfd_vma addr = isec->output_offset + isec->output_section->vma;
7478 bfd_vma off = addr - htab->toc_curr;
ad8e1ba5 7479
99877b66
AM		 7480 if (off + isec->size > 0x10000)
7481 htab->toc_curr = addr;
7482
7483 elf_gp (isec->owner) = (htab->toc_curr
7484 - elf_gp (isec->output_section->owner)
7485 + TOC_BASE_OFF);
ad8e1ba5
AM		 7486}
7487
7488/* Called after the last call to the above function. */
7489
7490void
4ce794b7
AM		 7491ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED,
7492 struct bfd_link_info *info)
ad8e1ba5
AM		 7493{
7494 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5
AM		 7495
7496 /* toc_curr tracks the TOC offset used for code sections below in
7497 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 7498 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 7499}
7500
9b5ecbd0
AM		 7501/* No toc references were found in ISEC. If the code in ISEC makes no
7502 calls, then there's no need to use toc adjusting stubs when branching
7503 into ISEC. Actually, indirect calls from ISEC are OK as they will
7504 load r2. */
7505
7506static int
4ce794b7 7507toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0
AM		 7508{
7509 bfd_byte *contents;
7510 bfd_size_type i;
7511 int ret;
7512 int branch_ok;
7513
772119ce
AM		 7514 /* We know none of our code bearing sections will need toc stubs. */
7515 if ((isec->flags & SEC_LINKER_CREATED) != 0)
7516 return 0;
7517
eea6121a 7518 if (isec->size == 0)
082c50f8
AM		 7519 return 0;
7520
9b5ecbd0
AM		 7521 /* Hack for linux kernel. .fixup contains branches, but only back to
7522 the function that hit an exception. */
7523 branch_ok = strcmp (isec->name, ".fixup") == 0;
7524
7525 contents = elf_section_data (isec)->this_hdr.contents;
7526 if (contents == NULL)
7527 {
eea6121a 7528 if (!bfd_malloc_and_get_section (isec->owner, isec, &contents))
9b5ecbd0 7529 {
eea6121a
AM		 7530 if (contents != NULL)
7531 free (contents);
9b5ecbd0
AM		 7532 return -1;
7533 }
7534 if (info->keep_memory)
7535 elf_section_data (isec)->this_hdr.contents = contents;
7536 }
7537
7538 /* Code scan, because we don't necessarily have relocs on calls to
7539 static functions. */
7540 ret = 0;
eea6121a 7541 for (i = 0; i < isec->size; i += 4)
9b5ecbd0
AM		 7542 {
7543 unsigned long insn = bfd_get_32 (isec->owner, contents + i);
7544 /* Is this a branch? */
772119ce 7545 if ((insn & (0x3f << 26)) == (18 << 26)
9b5ecbd0
AM		 7546 /* If branch and link, it's a function call. */
7547 && ((insn & 1) != 0
7548 /* Sibling calls use a plain branch. I don't know a way
7549 of deciding whether a branch is really a sibling call. */
7550 || !branch_ok))
7551 {
7552 ret = 1;
7553 break;
7554 }
7555 }
7556
7557 if (elf_section_data (isec)->this_hdr.contents != contents)
7558 free (contents);
7559 return ret;
7560}
7561
721956f4
AM		 7562/* The linker repeatedly calls this function for each input section,
7563 in the order that input sections are linked into output sections.
7564 Build lists of input sections to determine groupings between which
7565 we may insert linker stubs. */
7566
9b5ecbd0 7567bfd_boolean
4ce794b7 7568ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 7569{
7570 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9b5ecbd0 7571 int ret;
721956f4 7572
734b6cf9
AM		 7573 if ((isec->output_section->flags & SEC_CODE) != 0
7574 && isec->output_section->index <= htab->top_index)
721956f4 7575 {
734b6cf9 7576 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 7577 /* Steal the link_sec pointer for our list. */
721956f4 7578#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 7579 /* This happens to make the list in reverse order,
7580 which is what we want. */
734b6cf9
AM		 7581 PREV_SEC (isec) = *list;
7582 *list = isec;
721956f4 7583 }
ad8e1ba5
AM		 7584
7585 /* If a code section has a function that uses the TOC then we need
7586 to use the right TOC (obviously). Also, make sure that .opd gets
ee87f2da
AM		 7587 the correct TOC value for R_PPC64_TOC relocs that don't have or
7588 can't find their function symbol (shouldn't ever happen now). */
ad8e1ba5 7589 if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0)
9b5ecbd0
AM		 7590 {
7591 if (elf_gp (isec->owner) != 0)
7592 htab->toc_curr = elf_gp (isec->owner);
7593 }
7594 else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0)
7595 return FALSE;
7596 else
7597 isec->has_gp_reloc = ret;
ad8e1ba5
AM		 7598
7599 /* Functions that don't use the TOC can belong in any TOC group.
7600 Use the last TOC base. This happens to make _init and _fini
7601 pasting work. */
7602 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 7603 return TRUE;
721956f4
AM		 7604}
7605
7606/* See whether we can group stub sections together. Grouping stub
7607 sections may result in fewer stubs. More importantly, we need to
7608 put all .init* and .fini* stubs at the beginning of the .init or
7609 .fini output sections respectively, because glibc splits the
7610 _init and _fini functions into multiple parts. Putting a stub in
7611 the middle of a function is not a good idea. */
7612
7613static void
4ce794b7
AM		 7614group_sections (struct ppc_link_hash_table *htab,
7615 bfd_size_type stub_group_size,
7616 bfd_boolean stubs_always_before_branch)
721956f4 7617{
734b6cf9
AM		 7618 asection **list = htab->input_list + htab->top_index;
7619 do
721956f4 7620 {
734b6cf9
AM		 7621 asection *tail = *list;
7622 while (tail != NULL)
721956f4 7623 {
734b6cf9
AM		 7624 asection *curr;
7625 asection *prev;
7626 bfd_size_type total;
7627 bfd_boolean big_sec;
7628 bfd_vma curr_toc;
7629
7630 curr = tail;
eea6121a 7631 total = tail->size;
734b6cf9
AM		 7632 big_sec = total >= stub_group_size;
7633 curr_toc = htab->stub_group[tail->id].toc_off;
7634
7635 while ((prev = PREV_SEC (curr)) != NULL
7636 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM		 7637 < stub_group_size)
7638 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 7639 curr = prev;
7640
7641 /* OK, the size from the start of CURR to the end is less
7642 than stub_group_size and thus can be handled by one stub
7643 section. (or the tail section is itself larger than
7644 stub_group_size, in which case we may be toast.) We
7645 should really be keeping track of the total size of stubs
7646 added here, as stubs contribute to the final output
7647 section size. That's a little tricky, and this way will
7648 only break if stubs added make the total size more than
7649 2^25, ie. for the default stub_group_size, if stubs total
7650 more than 2097152 bytes, or nearly 75000 plt call stubs. */
7651 do
721956f4
AM		 7652 {
7653 prev = PREV_SEC (tail);
734b6cf9 7654 /* Set up this stub group. */
721956f4
AM		 7655 htab->stub_group[tail->id].link_sec = curr;
7656 }
734b6cf9
AM		 7657 while (tail != curr && (tail = prev) != NULL);
7658
7659 /* But wait, there's more! Input sections up to stub_group_size
7660 bytes before the stub section can be handled by it too.
7661 Don't do this if we have a really large section after the
7662 stubs, as adding more stubs increases the chance that
7663 branches may not reach into the stub section. */
7664 if (!stubs_always_before_branch && !big_sec)
7665 {
7666 total = 0;
7667 while (prev != NULL
7668 && ((total += tail->output_offset - prev->output_offset)
7669 < stub_group_size)
7670 && htab->stub_group[prev->id].toc_off == curr_toc)
7671 {
7672 tail = prev;
7673 prev = PREV_SEC (tail);
7674 htab->stub_group[tail->id].link_sec = curr;
7675 }
7676 }
7677 tail = prev;
721956f4
AM		 7678 }
7679 }
734b6cf9
AM		 7680 while (list-- != htab->input_list);
7681 free (htab->input_list);
721956f4
AM		 7682#undef PREV_SEC
7683}
7684
721956f4
AM		 7685/* Determine and set the size of the stub section for a final link.
7686
7687 The basic idea here is to examine all the relocations looking for
7688 PC-relative calls to a target that is unreachable with a "bl"
7689 instruction. */
7690
b34976b6 7691bfd_boolean
4ce794b7 7692ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 7693 struct bfd_link_info *info,
7694 bfd_signed_vma group_size,
7695 asection *(*add_stub_section) (const char *, asection *),
7696 void (*layout_sections_again) (void))
721956f4
AM		 7697{
7698 bfd_size_type stub_group_size;
b34976b6 7699 bfd_boolean stubs_always_before_branch;
721956f4
AM		 7700 struct ppc_link_hash_table *htab = ppc_hash_table (info);
7701
7702 /* Stash our params away. */
721956f4
AM		 7703 htab->add_stub_section = add_stub_section;
7704 htab->layout_sections_again = layout_sections_again;
7705 stubs_always_before_branch = group_size < 0;
7706 if (group_size < 0)
7707 stub_group_size = -group_size;
7708 else
7709 stub_group_size = group_size;
7710 if (stub_group_size == 1)
7711 {
7712 /* Default values. */
58ac9f71
AM		 7713 if (stubs_always_before_branch)
7714 {
7715 stub_group_size = 0x1e00000;
7716 if (htab->has_14bit_branch)
7717 stub_group_size = 0x7800;
7718 }
7719 else
7720 {
7721 stub_group_size = 0x1c00000;
7722 if (htab->has_14bit_branch)
7723 stub_group_size = 0x7000;
7724 }
721956f4
AM		 7725 }
7726
7727 group_sections (htab, stub_group_size, stubs_always_before_branch);
7728
721956f4
AM		 7729 while (1)
7730 {
7731 bfd *input_bfd;
7732 unsigned int bfd_indx;
7733 asection *stub_sec;
b34976b6 7734 bfd_boolean stub_changed;
721956f4
AM		 7735
7736 htab->stub_iteration += 1;
b34976b6 7737 stub_changed = FALSE;
721956f4
AM		 7738
7739 for (input_bfd = info->input_bfds, bfd_indx = 0;
7740 input_bfd != NULL;
7741 input_bfd = input_bfd->link_next, bfd_indx++)
7742 {
7743 Elf_Internal_Shdr *symtab_hdr;
7744 asection *section;
6cdc0ccc 7745 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM		 7746
7747 /* We'll need the symbol table in a second. */
7748 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
7749 if (symtab_hdr->sh_info == 0)
7750 continue;
7751
721956f4
AM		 7752 /* Walk over each section attached to the input bfd. */
7753 for (section = input_bfd->sections;
7754 section != NULL;
7755 section = section->next)
7756 {
721956f4 7757 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 7758
7759 /* If there aren't any relocs, then there's nothing more
7760 to do. */
7761 if ((section->flags & SEC_RELOC) == 0
7762 || section->reloc_count == 0)
7763 continue;
7764
7765 /* If this section is a link-once section that will be
7766 discarded, then don't create any stubs. */
7767 if (section->output_section == NULL
7768 || section->output_section->owner != output_bfd)
7769 continue;
7770
1e2f5b6e
AM		 7771 /* Get the relocs. */
7772 internal_relocs
4ce794b7 7773 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 7774 info->keep_memory);
721956f4 7775 if (internal_relocs == NULL)
1e2f5b6e 7776 goto error_ret_free_local;
721956f4
AM		 7777
7778 /* Now examine each relocation. */
7779 irela = internal_relocs;
7780 irelaend = irela + section->reloc_count;
7781 for (; irela < irelaend; irela++)
7782 {
4ce794b7
AM		 7783 enum elf_ppc64_reloc_type r_type;
7784 unsigned int r_indx;
721956f4
AM		 7785 enum ppc_stub_type stub_type;
7786 struct ppc_stub_hash_entry *stub_entry;
8387904d 7787 asection *sym_sec, *code_sec;
721956f4
AM		 7788 bfd_vma sym_value;
7789 bfd_vma destination;
8843416a 7790 bfd_boolean ok_dest;
721956f4 7791 struct ppc_link_hash_entry *hash;
8387904d 7792 struct ppc_link_hash_entry *fdh;
411e1bfb
AM		 7793 struct elf_link_hash_entry *h;
7794 Elf_Internal_Sym *sym;
721956f4
AM		 7795 char *stub_name;
7796 const asection *id_sec;
8387904d 7797 long *opd_adjust;
721956f4
AM		 7798
7799 r_type = ELF64_R_TYPE (irela->r_info);
7800 r_indx = ELF64_R_SYM (irela->r_info);
7801
4ce794b7 7802 if (r_type >= R_PPC64_max)
721956f4
AM		 7803 {
7804 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 7805 goto error_ret_free_internal;
721956f4
AM		 7806 }
7807
7808 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 7809 if (r_type != R_PPC64_REL24
7810 && r_type != R_PPC64_REL14
7811 && r_type != R_PPC64_REL14_BRTAKEN
7812 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 7813 continue;
7814
7815 /* Now determine the call target, its name, value,
7816 section. */
411e1bfb
AM		 7817 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7818 r_indx, input_bfd))
7819 goto error_ret_free_internal;
7820 hash = (struct ppc_link_hash_entry *) h;
7821
8843416a 7822 ok_dest = FALSE;
8387904d 7823 fdh = NULL;
411e1bfb 7824 if (hash == NULL)
721956f4 7825 {
411e1bfb 7826 sym_value = sym->st_value;
8843416a 7827 ok_dest = TRUE;
721956f4
AM		 7828 }
7829 else
7830 {
411e1bfb 7831 sym_value = 0;
99877b66
AM		 7832 /* Recognise an old ABI func code entry sym, and
7833 use the func descriptor sym instead. */
7834 if (hash->elf.root.type == bfd_link_hash_undefweak
8387904d
AM		 7835 && hash->elf.root.root.string[0] == '.'
7836 && (fdh = get_fdh (hash, htab)) != NULL)
7837 {
8387904d
AM		 7838 if (fdh->elf.root.type == bfd_link_hash_defined
7839 || fdh->elf.root.type == bfd_link_hash_defweak)
7840 {
7841 sym_sec = fdh->elf.root.u.def.section;
7842 sym_value = fdh->elf.root.u.def.value;
7843 if (sym_sec->output_section != NULL)
7844 ok_dest = TRUE;
7845 }
99877b66
AM		 7846 else
7847 fdh = NULL;
8387904d
AM		 7848 }
7849 else if (hash->elf.root.type == bfd_link_hash_defined
7850 || hash->elf.root.type == bfd_link_hash_defweak)
721956f4 7851 {
721956f4
AM		 7852 sym_value = hash->elf.root.u.def.value;
7853 if (sym_sec->output_section != NULL)
8843416a 7854 ok_dest = TRUE;
721956f4
AM		 7855 }
7856 else if (hash->elf.root.type == bfd_link_hash_undefweak)
7857 ;
7858 else if (hash->elf.root.type == bfd_link_hash_undefined)
7859 ;
7860 else
7861 {
7862 bfd_set_error (bfd_error_bad_value);
7863 goto error_ret_free_internal;
7864 }
7865 }
7866
8843416a
AM		 7867 destination = 0;
7868 if (ok_dest)
7869 {
7870 sym_value += irela->r_addend;
7871 destination = (sym_value
7872 + sym_sec->output_offset
7873 + sym_sec->output_section->vma);
7874 }
7875
8387904d
AM		 7876 code_sec = sym_sec;
7877 opd_adjust = get_opd_info (sym_sec);
7878 if (opd_adjust != NULL)
7879 {
7880 bfd_vma dest;
7881
7882 if (hash == NULL)
7883 {
3f764659 7884 long adjust = opd_adjust[sym_value / 8];
8387904d
AM		 7885 if (adjust == -1)
7886 continue;
7887 sym_value += adjust;
7888 }
7889 dest = opd_entry_value (sym_sec, sym_value,
7890 &code_sec, &sym_value);
7891 if (dest != (bfd_vma) -1)
7892 {
7893 destination = dest;
7894 if (fdh != NULL)
7895 {
7896 /* Fixup old ABI sym to point at code
7897 entry. */
99877b66 7898 hash->elf.root.type = bfd_link_hash_defweak;
8387904d
AM		 7899 hash->elf.root.u.def.section = code_sec;
7900 hash->elf.root.u.def.value = sym_value;
7901 }
7902 }
7903 }
7904
721956f4
AM		 7905 /* Determine what (if any) linker stub is needed. */
7906 stub_type = ppc_type_of_stub (section, irela, &hash,
7907 destination);
ad8e1ba5
AM		 7908
7909 if (stub_type != ppc_stub_plt_call)
7910 {
7911 /* Check whether we need a TOC adjusting stub.
7912 Since the linker pastes together pieces from
7913 different object files when creating the
7914 _init and _fini functions, it may be that a
7915 call to what looks like a local sym is in
7916 fact a call needing a TOC adjustment. */
8387904d
AM		 7917 if (code_sec != NULL
7918 && code_sec->output_section != NULL
7919 && (htab->stub_group[code_sec->id].toc_off
9b5ecbd0 7920 != htab->stub_group[section->id].toc_off)
8387904d 7921 && code_sec->has_gp_reloc
9b5ecbd0 7922 && section->has_gp_reloc)
ad8e1ba5
AM		 7923 stub_type = ppc_stub_long_branch_r2off;
7924 }
7925
721956f4
AM		 7926 if (stub_type == ppc_stub_none)
7927 continue;
7928
411e1bfb
AM		 7929 /* __tls_get_addr calls might be eliminated. */
7930 if (stub_type != ppc_stub_plt_call
7931 && hash != NULL
8387904d
AM		 7932 && (hash == htab->tls_get_addr
7933 || hash == htab->tls_get_addr_fd)
411e1bfb
AM		 7934 && section->has_tls_reloc
7935 && irela != internal_relocs)
7936 {
7937 /* Get tls info. */
e7b938ca 7938 char *tls_mask;
411e1bfb 7939
0d4792f7 7940 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
411e1bfb
AM		 7941 irela - 1, input_bfd))
7942 goto error_ret_free_internal;
e7b938ca 7943 if (*tls_mask != 0)
411e1bfb
AM		 7944 continue;
7945 }
7946
721956f4
AM		 7947 /* Support for grouping stub sections. */
7948 id_sec = htab->stub_group[section->id].link_sec;
7949
7950 /* Get the name of this stub. */
7951 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
7952 if (!stub_name)
7953 goto error_ret_free_internal;
7954
7955 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 7956 stub_name, FALSE, FALSE);
721956f4
AM		 7957 if (stub_entry != NULL)
7958 {
7959 /* The proper stub has already been created. */
7960 free (stub_name);
7961 continue;
7962 }
7963
7964 stub_entry = ppc_add_stub (stub_name, section, htab);
7965 if (stub_entry == NULL)
7966 {
7967 free (stub_name);
6cdc0ccc
AM		 7968 error_ret_free_internal:
7969 if (elf_section_data (section)->relocs == NULL)
7970 free (internal_relocs);
7971 error_ret_free_local:
7972 if (local_syms != NULL
7973 && (symtab_hdr->contents
7974 != (unsigned char *) local_syms))
7975 free (local_syms);
b34976b6 7976 return FALSE;
721956f4
AM		 7977 }
7978
ad8e1ba5 7979 stub_entry->stub_type = stub_type;
721956f4 7980 stub_entry->target_value = sym_value;
8387904d 7981 stub_entry->target_section = code_sec;
721956f4 7982 stub_entry->h = hash;
411e1bfb 7983 stub_entry->addend = irela->r_addend;
b34976b6 7984 stub_changed = TRUE;
721956f4
AM		 7985 }
7986
7987 /* We're done with the internal relocs, free them. */
6cdc0ccc 7988 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 7989 free (internal_relocs);
721956f4 7990 }
6cdc0ccc
AM		 7991
7992 if (local_syms != NULL
7993 && symtab_hdr->contents != (unsigned char *) local_syms)
7994 {
7995 if (!info->keep_memory)
7996 free (local_syms);
7997 else
7998 symtab_hdr->contents = (unsigned char *) local_syms;
7999 }
721956f4
AM		 8000 }
8001
8002 if (!stub_changed)
8003 break;
8004
8005 /* OK, we've added some stubs. Find out the new size of the
8006 stub sections. */
8007 for (stub_sec = htab->stub_bfd->sections;
8008 stub_sec != NULL;
8009 stub_sec = stub_sec->next)
e717da7e 8010 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
eea6121a
AM		 8011 stub_sec->size = 0;
8012
8013 htab->brlt->size = 0;
63bc6f6c 8014 if (info->shared)
eea6121a 8015 htab->relbrlt->size = 0;
721956f4 8016
63bc6f6c 8017 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4
AM		 8018
8019 /* Ask the linker to do its stuff. */
8020 (*htab->layout_sections_again) ();
8021 }
8022
afbe61cf
AM		 8023 /* It would be nice to strip .branch_lt from the output if the
8024 section is empty, but it's too late. If we strip sections here,
8025 the dynamic symbol table is corrupted since the section symbol
8026 for the stripped section isn't written. */
721956f4 8027
b34976b6 8028 return TRUE;
721956f4
AM		 8029}
8030
8031/* Called after we have determined section placement. If sections
805fc799 8032 move, we'll be called again. Provide a value for TOCstart. */
721956f4 8033
805fc799 8034bfd_vma
4ce794b7 8035ppc64_elf_toc (bfd *obfd)
721956f4 8036{
805fc799
AM		 8037 asection *s;
8038 bfd_vma TOCstart;
721956f4 8039
805fc799
AM		 8040 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
8041 order. The TOC starts where the first of these sections starts. */
8042 s = bfd_get_section_by_name (obfd, ".got");
8043 if (s == NULL)
8044 s = bfd_get_section_by_name (obfd, ".toc");
8045 if (s == NULL)
8046 s = bfd_get_section_by_name (obfd, ".tocbss");
8047 if (s == NULL)
8048 s = bfd_get_section_by_name (obfd, ".plt");
8049 if (s == NULL)
8050 {
8051 /* This may happen for
8052 o references to TOC base (SYM@toc / TOC[tc0]) without a
8053 .toc directive
8054 o bad linker script
8055 o --gc-sections and empty TOC sections
8056
8057 FIXME: Warn user? */
8058
8059 /* Look for a likely section. We probably won't even be
8060 using TOCstart. */
8061 for (s = obfd->sections; s != NULL; s = s->next)
8062 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
8063 == (SEC_ALLOC | SEC_SMALL_DATA))
8064 break;
721956f4 8065 if (s == NULL)
805fc799
AM		 8066 for (s = obfd->sections; s != NULL; s = s->next)
8067 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
8068 == (SEC_ALLOC | SEC_SMALL_DATA))
8069 break;
721956f4 8070 if (s == NULL)
805fc799
AM		 8071 for (s = obfd->sections; s != NULL; s = s->next)
8072 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
8073 break;
721956f4 8074 if (s == NULL)
805fc799
AM		 8075 for (s = obfd->sections; s != NULL; s = s->next)
8076 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
8077 break;
8078 }
721956f4 8079
805fc799
AM		 8080 TOCstart = 0;
8081 if (s != NULL)
8082 TOCstart = s->output_section->vma + s->output_offset;
721956f4 8083
805fc799 8084 return TOCstart;
721956f4
AM		 8085}
8086
8087/* Build all the stubs associated with the current output file.
8088 The stubs are kept in a hash table attached to the main linker
8089 hash table. This function is called via gldelf64ppc_finish. */
8090
b34976b6 8091bfd_boolean
4ce794b7
AM		 8092ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
8093 struct bfd_link_info *info,
8094 char **stats)
5d1634d7
AM		 8095{
8096 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 8097 asection *stub_sec;
5d1634d7 8098 bfd_byte *p;
e717da7e 8099 int stub_sec_count = 0;
5d1634d7 8100
ad8e1ba5 8101 htab->emit_stub_syms = emit_stub_syms;
eea6121a
AM		 8102
8103 /* Allocate memory to hold the linker stubs. */
721956f4
AM		 8104 for (stub_sec = htab->stub_bfd->sections;
8105 stub_sec != NULL;
8106 stub_sec = stub_sec->next)
eea6121a
AM		 8107 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
8108 && stub_sec->size != 0)
e717da7e 8109 {
eea6121a
AM		 8110 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
8111 if (stub_sec->contents == NULL)
8112 return FALSE;
8113 /* We want to check that built size is the same as calculated
8114 size. rawsize is a convenient location to use. */
8115 stub_sec->rawsize = stub_sec->size;
8116 stub_sec->size = 0;
e717da7e 8117 }
5d1634d7 8118
4ce794b7 8119 if (htab->plt != NULL)
5d1634d7 8120 {
9f951329 8121 unsigned int indx;
ad8e1ba5 8122 bfd_vma plt0;
9f951329 8123
721956f4 8124 /* Build the .glink plt call stub. */
4ce794b7
AM		 8125 plt0 = (htab->plt->output_section->vma
8126 + htab->plt->output_offset
8127 - (htab->glink->output_section->vma
8128 + htab->glink->output_offset
ad8e1ba5
AM		 8129 + GLINK_CALL_STUB_SIZE));
8130 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 8131 {
ad8e1ba5
AM		 8132 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
8133 bfd_set_error (bfd_error_bad_value);
8134 return FALSE;
721956f4 8135 }
721956f4 8136
97b639ba
AM		 8137 if (htab->emit_stub_syms)
8138 {
8139 struct elf_link_hash_entry *h;
8140 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
8141 if (h == NULL)
8142 return FALSE;
8143 if (h->root.type == bfd_link_hash_new)
8144 {
8145 h->root.type = bfd_link_hash_defined;
8146 h->root.u.def.section = htab->glink;
8147 h->root.u.def.value = 0;
8148 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
8149 | ELF_LINK_HASH_DEF_REGULAR
8150 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
8151 | ELF_LINK_FORCED_LOCAL);
8152 }
8153 }
4ce794b7
AM		 8154 p = htab->glink->contents;
8155 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 8156 p += 4;
4ce794b7 8157 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 8158 p += 4;
4ce794b7 8159 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 8160 p += 4;
4ce794b7 8161 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 8162 p += 4;
4ce794b7 8163 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 8164 p += 4;
4ce794b7 8165 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 8166 p += 4;
4ce794b7 8167 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 8168 p += 4;
4ce794b7 8169 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 8170 p += 4;
4ce794b7 8171 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 8172 p += 4;
4ce794b7 8173 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 8174 p += 4;
4ce794b7 8175 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 8176 p += 4;
4ce794b7 8177 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 8178 p += 4;
4ce794b7 8179 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 8180 p += 4;
4ce794b7 8181 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 8182 p += 4;
4ce794b7 8183 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 8184 p += 4;
4ce794b7 8185 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM		 8186 p += 4;
8187
9f951329
AM		 8188 /* Build the .glink lazy link call stubs. */
8189 indx = 0;
eea6121a 8190 while (p < htab->glink->contents + htab->glink->size)
9f951329
AM		 8191 {
8192 if (indx < 0x8000)
8193 {
4ce794b7 8194 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 8195 p += 4;
8196 }
8197 else
8198 {
4ce794b7 8199 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 8200 p += 4;
4ce794b7 8201 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 8202 p += 4;
8203 }
4ce794b7
AM		 8204 bfd_put_32 (htab->glink->owner,
8205 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 8206 indx++;
9f951329
AM		 8207 p += 4;
8208 }
eea6121a 8209 htab->glink->rawsize = p - htab->glink->contents;
5d1634d7 8210 }
5d1634d7 8211
eea6121a 8212 if (htab->brlt->size != 0)
721956f4 8213 {
4ce794b7 8214 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 8215 htab->brlt->size);
4ce794b7 8216 if (htab->brlt->contents == NULL)
b34976b6 8217 return FALSE;
721956f4 8218 }
eea6121a 8219 if (info->shared && htab->relbrlt->size != 0)
63bc6f6c
AM		 8220 {
8221 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 8222 htab->relbrlt->size);
63bc6f6c
AM		 8223 if (htab->relbrlt->contents == NULL)
8224 return FALSE;
8225 }
5d1634d7 8226
721956f4
AM		 8227 /* Build the stubs as directed by the stub hash table. */
8228 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 8229
721956f4
AM		 8230 for (stub_sec = htab->stub_bfd->sections;
8231 stub_sec != NULL;
8232 stub_sec = stub_sec->next)
e717da7e
AM		 8233 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
8234 {
8235 stub_sec_count += 1;
eea6121a 8236 if (stub_sec->rawsize != stub_sec->size)
e717da7e
AM		 8237 break;
8238 }
5d1634d7 8239
721956f4 8240 if (stub_sec != NULL
eea6121a 8241 || htab->glink->rawsize != htab->glink->size)
5d1634d7 8242 {
b34976b6 8243 htab->stub_error = TRUE;
721956f4 8244 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 8245 }
721956f4 8246
d2a300cf
AM		 8247 if (htab->stub_error)
8248 return FALSE;
8249
8250 if (stats != NULL)
8251 {
8252 *stats = bfd_malloc (500);
8253 if (*stats == NULL)
8254 return FALSE;
8255
8256 sprintf (*stats, _("linker stubs in %u groups\n"
8257 " branch %lu\n"
8258 " toc adjust %lu\n"
8259 " long branch %lu\n"
8260 " long toc adj %lu\n"
8261 " plt call %lu"),
e717da7e 8262 stub_sec_count,
4ce794b7
AM		 8263 htab->stub_count[ppc_stub_long_branch - 1],
8264 htab->stub_count[ppc_stub_long_branch_r2off - 1],
8265 htab->stub_count[ppc_stub_plt_branch - 1],
8266 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
8267 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 8268 }
8269 return TRUE;
5bd4f169
AM		 8270}
8271
99877b66
AM		 8272/* This function undoes the changes made by add_symbol_adjust. */
8273
8274static bfd_boolean
8275undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
8276{
8277 struct ppc_link_hash_entry *eh;
8278
8279 if (h->root.type == bfd_link_hash_indirect)
8280 return TRUE;
8281
8282 if (h->root.type == bfd_link_hash_warning)
8283 h = (struct elf_link_hash_entry *) h->root.u.i.link;
8284
8285 eh = (struct ppc_link_hash_entry *) h;
8286 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
8287 return TRUE;
8288
8289 eh->elf.root.type = bfd_link_hash_undefined;
8290 return TRUE;
8291}
8292
8293void
8294ppc64_elf_restore_symbols (struct bfd_link_info *info)
8295{
8296 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8297 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
8298}
8299
5bd4f169
AM		 8300/* The RELOCATE_SECTION function is called by the ELF backend linker
8301 to handle the relocations for a section.
8302
8303 The relocs are always passed as Rela structures; if the section
8304 actually uses Rel structures, the r_addend field will always be
8305 zero.
8306
8307 This function is responsible for adjust the section contents as
8308 necessary, and (if using Rela relocs and generating a
1049f94e 8309 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 8310 necessary.
8311
8312 This function does not have to worry about setting the reloc
8313 address or the reloc symbol index.
8314
8315 LOCAL_SYMS is a pointer to the swapped in local symbols.
8316
8317 LOCAL_SECTIONS is an array giving the section in the input file
8318 corresponding to the st_shndx field of each local symbol.
8319
8320 The global hash table entry for the global symbols can be found
8321 via elf_sym_hashes (input_bfd).
8322
1049f94e 8323 When generating relocatable output, this function must handle
5bd4f169
AM		 8324 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
8325 going to be the section symbol corresponding to the output
8326 section, which means that the addend must be adjusted
8327 accordingly. */
8328
b34976b6 8329static bfd_boolean
4ce794b7
AM		 8330ppc64_elf_relocate_section (bfd *output_bfd,
8331 struct bfd_link_info *info,
8332 bfd *input_bfd,
8333 asection *input_section,
8334 bfd_byte *contents,
8335 Elf_Internal_Rela *relocs,
8336 Elf_Internal_Sym *local_syms,
8337 asection **local_sections)
5bd4f169 8338{
65f38f15 8339 struct ppc_link_hash_table *htab;
5bd4f169
AM		 8340 Elf_Internal_Shdr *symtab_hdr;
8341 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 8342 Elf_Internal_Rela *rel;
8343 Elf_Internal_Rela *relend;
411e1bfb
AM		 8344 Elf_Internal_Rela outrel;
8345 bfd_byte *loc;
411e1bfb 8346 struct got_entry **local_got_ents;
5bd4f169 8347 bfd_vma TOCstart;
b34976b6
AM		 8348 bfd_boolean ret = TRUE;
8349 bfd_boolean is_opd;
96e0dda4 8350 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 8351 bfd_boolean is_power4 = FALSE;
5bd4f169 8352
1049f94e 8353 if (info->relocatable)
b34976b6 8354 return TRUE;
b491616a 8355
65f38f15 8356 /* Initialize howto table if needed. */
5bd4f169 8357 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 8358 ppc_howto_init ();
8359
65f38f15 8360 htab = ppc_hash_table (info);
411e1bfb 8361 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 8362 TOCstart = elf_gp (output_bfd);
5bd4f169
AM		 8363 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
8364 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 8365 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 8366
5bd4f169
AM		 8367 rel = relocs;
8368 relend = relocs + input_section->reloc_count;
8369 for (; rel < relend; rel++)
8370 {
04c9666a 8371 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM		 8372 bfd_vma addend;
8373 bfd_reloc_status_type r;
8374 Elf_Internal_Sym *sym;
8375 asection *sec;
8376 struct elf_link_hash_entry *h;
721956f4 8377 struct elf_link_hash_entry *fdh;
5bd4f169 8378 const char *sym_name;
0d4792f7 8379 unsigned long r_symndx, toc_symndx;
951fd09b 8380 char tls_mask, tls_gd, tls_type;
0d4792f7 8381 char sym_type;
5bd4f169 8382 bfd_vma relocation;
b34976b6
AM		 8383 bfd_boolean unresolved_reloc;
8384 bfd_boolean warned;
50bc7936 8385 unsigned long insn, mask;
721956f4
AM		 8386 struct ppc_stub_hash_entry *stub_entry;
8387 bfd_vma max_br_offset;
8388 bfd_vma from;
5bd4f169 8389
4ce794b7 8390 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 8391 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 8392
8393 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
8394 symbol of the previous ADDR64 reloc. The symbol gives us the
8395 proper TOC base to use. */
8396 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
8397 && rel != relocs
8398 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
8399 && is_opd)
8400 r_symndx = ELF64_R_SYM (rel[-1].r_info);
8401
4ce794b7
AM		 8402 sym = NULL;
8403 sec = NULL;
8404 h = NULL;
8405 sym_name = NULL;
b34976b6
AM		 8406 unresolved_reloc = FALSE;
8407 warned = FALSE;
65f38f15 8408
0b13192e 8409 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 8410 {
8411 /* It's a local symbol. */
4025353c
AM		 8412 long *opd_adjust;
8413
5bd4f169
AM		 8414 sym = local_syms + r_symndx;
8415 sec = local_sections[r_symndx];
411e1bfb 8416 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
0d4792f7 8417 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 8418 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
4025353c
AM		 8419 opd_adjust = get_opd_info (sec);
8420 if (opd_adjust != NULL)
1e2f5b6e 8421 {
3f764659 8422 long adjust = opd_adjust[(sym->st_value + rel->r_addend) / 8];
4025353c
AM		 8423 if (adjust == -1)
8424 relocation = 0;
8425 else
8426 relocation += adjust;
1e2f5b6e 8427 }
5bd4f169
AM		 8428 }
8429 else
8430 {
b2a8e766
AM		 8431 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
8432 r_symndx, symtab_hdr, sym_hashes,
8433 h, sec, relocation,
8434 unresolved_reloc, warned);
5bd4f169 8435 sym_name = h->root.root.string;
0d4792f7 8436 sym_type = h->type;
5bd4f169
AM		 8437 }
8438
951fd09b
AM		 8439 /* TLS optimizations. Replace instruction sequences and relocs
8440 based on information we collected in tls_optimize. We edit
8441 RELOCS so that --emit-relocs will output something sensible
8442 for the final instruction stream. */
8443 tls_mask = 0;
8444 tls_gd = 0;
0d4792f7 8445 toc_symndx = 0;
d881513a 8446 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 8447 {
8448 if (h != NULL)
e7b938ca 8449 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
411e1bfb
AM		 8450 else if (local_got_ents != NULL)
8451 {
e7b938ca
AM		 8452 char *lgot_masks;
8453 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
8454 tls_mask = lgot_masks[r_symndx];
411e1bfb 8455 }
0d4792f7
AM		 8456 if (tls_mask == 0 && r_type == R_PPC64_TLS)
8457 {
8458 /* Check for toc tls entries. */
8459 char *toc_tls;
8460
8461 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
8462 rel, input_bfd))
8463 return FALSE;
8464
8465 if (toc_tls)
8466 tls_mask = *toc_tls;
8467 }
8468 }
8469
8470 /* Check that tls relocs are used with tls syms, and non-tls
8471 relocs are used with non-tls syms. */
8472 if (r_symndx != 0
8473 && r_type != R_PPC64_NONE
8474 && (h == NULL
8475 || h->root.type == bfd_link_hash_defined
8476 || h->root.type == bfd_link_hash_defweak)
8477 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
8478 {
8479 if (r_type == R_PPC64_TLS && tls_mask != 0)
8480 /* R_PPC64_TLS is OK against a symbol in the TOC. */
8481 ;
8482 else
8483 (*_bfd_error_handler)
8484 (sym_type == STT_TLS
d003868e
AM		 8485 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
8486 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
8487 input_bfd,
8488 input_section,
0d4792f7
AM		 8489 (long) rel->r_offset,
8490 ppc64_elf_howto_table[r_type]->name,
8491 sym_name);
411e1bfb
AM		 8492 }
8493
8494 /* Ensure reloc mapping code below stays sane. */
8495 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
8496 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
8497 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
8498 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
8499 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
8500 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
8501 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
8502 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
8503 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
8504 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
8505 abort ();
0d4792f7 8506
411e1bfb
AM		 8507 switch (r_type)
8508 {
8509 default:
411e1bfb
AM		 8510 break;
8511
8512 case R_PPC64_TOC16:
8513 case R_PPC64_TOC16_LO:
8514 case R_PPC64_TOC16_DS:
8515 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 8516 {
8517 /* Check for toc tls entries. */
8518 char *toc_tls;
951fd09b 8519 int retval;
411e1bfb 8520
0d4792f7
AM		 8521 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
8522 rel, input_bfd);
951fd09b 8523 if (retval == 0)
411e1bfb
AM		 8524 return FALSE;
8525
8526 if (toc_tls)
8527 {
951fd09b 8528 tls_mask = *toc_tls;
411e1bfb
AM		 8529 if (r_type == R_PPC64_TOC16_DS
8530 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 8531 {
8532 if (tls_mask != 0
8533 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
8534 goto toctprel;
8535 }
411e1bfb 8536 else
951fd09b
AM		 8537 {
8538 /* If we found a GD reloc pair, then we might be
8539 doing a GD->IE transition. */
8540 if (retval == 2)
8541 {
8542 tls_gd = TLS_TPRELGD;
8543 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
8544 goto tls_get_addr_check;
8545 }
8546 else if (retval == 3)
8547 {
8548 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
8549 goto tls_get_addr_check;
8550 }
8551 }
411e1bfb
AM		 8552 }
8553 }
8554 break;
8555
8556 case R_PPC64_GOT_TPREL16_DS:
8557 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 8558 if (tls_mask != 0
8559 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 8560 {
81407a69 8561 toctprel:
411e1bfb
AM		 8562 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
8563 insn &= 31 << 21;
8564 insn |= 0x3c0d0000; /* addis 0,13,0 */
8565 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
8566 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 8567 if (toc_symndx != 0)
8568 {
8569 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
8570 /* We changed the symbol. Start over in order to
8571 get h, sym, sec etc. right. */
8572 rel--;
8573 continue;
8574 }
8575 else
8576 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 8577 }
8578 break;
8579
8580 case R_PPC64_TLS:
951fd09b
AM		 8581 if (tls_mask != 0
8582 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 8583 {
50bc7936 8584 bfd_vma rtra;
411e1bfb 8585 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 8586 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 8587 == ((31 << 26) | (13 << 11)))
8588 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 8589 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 8590 == ((31 << 26) | (13 << 16)))
8591 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
8592 else
8593 abort ();
8594 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
8595 /* add -> addi. */
8596 insn = 14 << 26;
8597 else if ((insn & (31 << 1)) == 23 << 1
8598 && ((insn & (31 << 6)) < 14 << 6
8599 || ((insn & (31 << 6)) >= 16 << 6
8600 && (insn & (31 << 6)) < 24 << 6)))
8601 /* load and store indexed -> dform. */
8602 insn = (32 | ((insn >> 6) & 31)) << 26;
8603 else if ((insn & (31 << 1)) == 21 << 1
8604 && (insn & (0x1a << 6)) == 0)
8605 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
8606 insn = (((58 | ((insn >> 6) & 4)) << 26)
8607 | ((insn >> 6) & 1));
8608 else if ((insn & (31 << 1)) == 21 << 1
8609 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
8610 /* lwax -> lwa. */
8611 insn = (58 << 26) | 2;
8612 else
8613 abort ();
8614 insn |= rtra;
8615 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb
AM		 8616 /* Was PPC64_TLS which sits on insn boundary, now
8617 PPC64_TPREL16_LO which is at insn+2. */
8618 rel->r_offset += 2;
0d4792f7
AM		 8619 r_type = R_PPC64_TPREL16_LO;
8620 if (toc_symndx != 0)
8621 {
8622 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
8623 /* We changed the symbol. Start over in order to
8624 get h, sym, sec etc. right. */
8625 rel--;
8626 continue;
8627 }
8628 else
8629 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 8630 }
8631 break;
8632
411e1bfb
AM		 8633 case R_PPC64_GOT_TLSGD16_HI:
8634 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 8635 tls_gd = TLS_TPRELGD;
8636 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
8637 goto tls_gdld_hi;
8638 break;
8639
411e1bfb
AM		 8640 case R_PPC64_GOT_TLSLD16_HI:
8641 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 8642 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 8643 {
951fd09b
AM		 8644 tls_gdld_hi:
8645 if ((tls_mask & tls_gd) != 0)
8646 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
8647 + R_PPC64_GOT_TPREL16_DS);
8648 else
411e1bfb 8649 {
951fd09b
AM		 8650 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
8651 rel->r_offset -= 2;
8652 r_type = R_PPC64_NONE;
411e1bfb 8653 }
951fd09b 8654 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 8655 }
8656 break;
8657
951fd09b
AM		 8658 case R_PPC64_GOT_TLSGD16:
8659 case R_PPC64_GOT_TLSGD16_LO:
8660 tls_gd = TLS_TPRELGD;
8661 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
8662 goto tls_get_addr_check;
8663 break;
411e1bfb 8664
951fd09b
AM		 8665 case R_PPC64_GOT_TLSLD16:
8666 case R_PPC64_GOT_TLSLD16_LO:
8667 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
8668 {
8669 tls_get_addr_check:
8670 if (rel + 1 < relend)
411e1bfb 8671 {
951fd09b
AM		 8672 enum elf_ppc64_reloc_type r_type2;
8673 unsigned long r_symndx2;
8674 struct elf_link_hash_entry *h2;
8675 bfd_vma insn1, insn2, insn3;
8676 bfd_vma offset;
8677
8678 /* The next instruction should be a call to
8679 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 8680 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM		 8681 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
8682 if (r_symndx2 < symtab_hdr->sh_info
8683 || (r_type2 != R_PPC64_REL14
8684 && r_type2 != R_PPC64_REL14_BRTAKEN
8685 && r_type2 != R_PPC64_REL14_BRNTAKEN
8686 && r_type2 != R_PPC64_REL24))
8687 break;
8688
8689 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
8690 while (h2->root.type == bfd_link_hash_indirect
8691 || h2->root.type == bfd_link_hash_warning)
8692 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
8387904d
AM		 8693 if (h2 == NULL || (h2 != &htab->tls_get_addr->elf
8694 && h2 != &htab->tls_get_addr_fd->elf))
951fd09b
AM		 8695 break;
8696
8697 /* OK, it checks out. Replace the call. */
8698 offset = rel[1].r_offset;
8699 insn1 = bfd_get_32 (output_bfd,
8700 contents + rel->r_offset - 2);
8701 insn3 = bfd_get_32 (output_bfd,
8702 contents + offset + 4);
8703 if ((tls_mask & tls_gd) != 0)
411e1bfb 8704 {
951fd09b
AM		 8705 /* IE */
8706 insn1 &= (1 << 26) - (1 << 2);
8707 insn1 |= 58 << 26; /* ld */
8708 insn2 = 0x7c636a14; /* add 3,3,13 */
8709 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
8710 if ((tls_mask & TLS_EXPLICIT) == 0)
8711 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
8712 + R_PPC64_GOT_TPREL16_DS);
8713 else
8714 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
8715 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 8716 }
8717 else
951fd09b
AM		 8718 {
8719 /* LE */
8720 insn1 = 0x3c6d0000; /* addis 3,13,0 */
8721 insn2 = 0x38630000; /* addi 3,3,0 */
8722 if (tls_gd == 0)
8723 {
8724 /* Was an LD reloc. */
8725 r_symndx = 0;
e1918d23
AM		 8726 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
8727 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
951fd09b 8728 }
0d4792f7
AM		 8729 else if (toc_symndx != 0)
8730 r_symndx = toc_symndx;
951fd09b
AM		 8731 r_type = R_PPC64_TPREL16_HA;
8732 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
8733 rel[1].r_info = ELF64_R_INFO (r_symndx,
8734 R_PPC64_TPREL16_LO);
8735 rel[1].r_offset += 2;
8736 }
8737 if (insn3 == NOP
8738 || insn3 == CROR_151515 || insn3 == CROR_313131)
8739 {
8740 insn3 = insn2;
8741 insn2 = NOP;
8742 rel[1].r_offset += 4;
8743 }
8744 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
8745 bfd_put_32 (output_bfd, insn2, contents + offset);
8746 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
0d4792f7 8747 if (tls_gd == 0 || toc_symndx != 0)
951fd09b 8748 {
0d4792f7
AM		 8749 /* We changed the symbol. Start over in order
8750 to get h, sym, sec etc. right. */
951fd09b
AM		 8751 rel--;
8752 continue;
8753 }
411e1bfb 8754 }
411e1bfb 8755 }
411e1bfb
AM		 8756 break;
8757
8758 case R_PPC64_DTPMOD64:
951fd09b
AM		 8759 if (rel + 1 < relend
8760 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
8761 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 8762 {
951fd09b
AM		 8763 if ((tls_mask & TLS_GD) == 0)
8764 {
8765 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
8766 if ((tls_mask & TLS_TPRELGD) != 0)
8767 r_type = R_PPC64_TPREL64;
8768 else
8769 {
4ce794b7 8770 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 8771 r_type = R_PPC64_NONE;
8772 }
8773 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
8774 }
8775 }
8776 else
8777 {
8778 if ((tls_mask & TLS_LD) == 0)
411e1bfb 8779 {
4ce794b7 8780 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 8781 r_type = R_PPC64_NONE;
951fd09b 8782 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 8783 }
411e1bfb
AM		 8784 }
8785 break;
8786
8787 case R_PPC64_TPREL64:
951fd09b 8788 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 8789 {
8790 r_type = R_PPC64_NONE;
8791 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
8792 }
8793 break;
8794 }
8795
8796 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 8797 insn = 0;
b25116a9
AM		 8798 max_br_offset = 1 << 25;
8799 addend = rel->r_addend;
65f38f15 8800 switch (r_type)
5bd4f169
AM		 8801 {
8802 default:
65f38f15 8803 break;
5bd4f169 8804
65f38f15
AM		 8805 /* Branch taken prediction relocations. */
8806 case R_PPC64_ADDR14_BRTAKEN:
8807 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 8808 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
8809 /* Fall thru. */
65f38f15 8810
86c76c7b 8811 /* Branch not taken prediction relocations. */
65f38f15
AM		 8812 case R_PPC64_ADDR14_BRNTAKEN:
8813 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 8814 insn |= bfd_get_32 (output_bfd,
8815 contents + rel->r_offset) & ~(0x01 << 21);
b25116a9 8816 /* Fall thru. */
86c76c7b 8817
b25116a9
AM		 8818 case R_PPC64_REL14:
8819 max_br_offset = 1 << 15;
8820 /* Fall thru. */
5bd4f169 8821
65f38f15 8822 case R_PPC64_REL24:
ad8e1ba5
AM		 8823 /* Calls to functions with a different TOC, such as calls to
8824 shared objects, need to alter the TOC pointer. This is
8825 done using a linkage stub. A REL24 branching to these
8826 linkage stubs needs to be followed by a nop, as the nop
8827 will be replaced with an instruction to restore the TOC
8828 base pointer. */
b25116a9 8829 stub_entry = NULL;
8387904d 8830 fdh = h;
ad8e1ba5 8831 if (((h != NULL
8387904d
AM		 8832 && (((fdh = &((struct ppc_link_hash_entry *) h)->oh->elf) != NULL
8833 && fdh->plt.plist != NULL)
8834 || (fdh = h)->plt.plist != NULL))
8835 || (sec != NULL
ad8e1ba5 8836 && sec->output_section != NULL
b25116a9 8837 && sec->id <= htab->top_id
ad8e1ba5
AM		 8838 && (htab->stub_group[sec->id].toc_off
8839 != htab->stub_group[input_section->id].toc_off)))
721956f4 8840 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 8841 rel, htab)) != NULL
8842 && (stub_entry->stub_type == ppc_stub_plt_call
8843 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
8844 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 8845 {
b25116a9 8846 bfd_boolean can_plt_call = FALSE;
721956f4 8847
eea6121a 8848 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 8849 {
b25116a9
AM		 8850 unsigned long nop;
8851 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
8852 if (nop == NOP
8853 || nop == CROR_151515 || nop == CROR_313131)
41bd81ab 8854 {
4ce794b7 8855 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 8856 contents + rel->r_offset + 4);
b25116a9 8857 can_plt_call = TRUE;
41bd81ab 8858 }
5bd4f169 8859 }
721956f4
AM		 8860
8861 if (!can_plt_call)
8862 {
ad8e1ba5
AM		 8863 if (stub_entry->stub_type == ppc_stub_plt_call)
8864 {
8865 /* If this is a plain branch rather than a branch
8866 and link, don't require a nop. */
b25116a9
AM		 8867 unsigned long br;
8868 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
8869 if ((br & 1) == 0)
8870 can_plt_call = TRUE;
ad8e1ba5 8871 }
6ab189d5
AM		 8872 else if (h != NULL
8873 && strcmp (h->root.root.string,
8874 ".__libc_start_main") == 0)
8875 {
8876 /* Allow crt1 branch to go via a toc adjusting stub. */
b25116a9 8877 can_plt_call = TRUE;
6ab189d5 8878 }
ad8e1ba5
AM		 8879 else
8880 {
8881 if (strcmp (input_section->output_section->name,
8882 ".init") == 0
8883 || strcmp (input_section->output_section->name,
8884 ".fini") == 0)
8885 (*_bfd_error_handler)
d003868e 8886 (_("%B(%A+0x%lx): automatic multiple TOCs "
ad8e1ba5
AM		 8887 "not supported using your crt files; "
8888 "recompile with -mminimal-toc or upgrade gcc"),
d003868e
AM		 8889 input_bfd,
8890 input_section,
ad8e1ba5
AM		 8891 (long) rel->r_offset);
8892 else
8893 (*_bfd_error_handler)
d003868e 8894 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
ad8e1ba5
AM		 8895 "does not allow automatic multiple TOCs; "
8896 "recompile with -mminimal-toc or "
8897 "-fno-optimize-sibling-calls, "
8898 "or make `%s' extern"),
d003868e
AM		 8899 input_bfd,
8900 input_section,
ad8e1ba5
AM		 8901 (long) rel->r_offset,
8902 sym_name,
8903 sym_name);
8904 bfd_set_error (bfd_error_bad_value);
8905 ret = FALSE;
8906 }
721956f4
AM		 8907 }
8908
b25116a9
AM		 8909 if (can_plt_call
8910 && stub_entry->stub_type == ppc_stub_plt_call)
8911 unresolved_reloc = FALSE;
8912 }
8913
8387904d
AM		 8914 if (stub_entry == NULL
8915 && get_opd_info (sec) != NULL)
8916 {
8917 /* The branch destination is the value of the opd entry. */
8918 bfd_vma off = (relocation - sec->output_section->vma
8919 - sec->output_offset + rel->r_addend);
8920 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
8921 if (dest != (bfd_vma) -1)
8922 {
8923 relocation = dest;
8924 addend = 0;
8925 }
8926 }
8927
b25116a9
AM		 8928 /* If the branch is out of reach we ought to have a long
8929 branch stub. */
8930 from = (rel->r_offset
8931 + input_section->output_offset
8932 + input_section->output_section->vma);
8933
8934 if (stub_entry == NULL
8935 && (relocation + rel->r_addend - from + max_br_offset
8936 >= 2 * max_br_offset)
8937 && r_type != R_PPC64_ADDR14_BRTAKEN
8938 && r_type != R_PPC64_ADDR14_BRNTAKEN)
8939 stub_entry = ppc_get_stub_entry (input_section, sec, h, rel, htab);
8940
8941 if (stub_entry != NULL)
8942 {
8943 /* Munge up the value and addend so that we call the stub
8944 rather than the procedure directly. */
8945 relocation = (stub_entry->stub_offset
8946 + stub_entry->stub_sec->output_offset
8947 + stub_entry->stub_sec->output_section->vma);
8948 addend = 0;
8949 }
8950
8951 if (insn != 0)
8952 {
8953 if (is_power4)
721956f4 8954 {
b25116a9
AM		 8955 /* Set 'a' bit. This is 0b00010 in BO field for branch
8956 on CR(BI) insns (BO == 001at or 011at), and 0b01000
8957 for branch on CTR insns (BO == 1a00t or 1a01t). */
8958 if ((insn & (0x14 << 21)) == (0x04 << 21))
8959 insn |= 0x02 << 21;
8960 else if ((insn & (0x14 << 21)) == (0x10 << 21))
8961 insn |= 0x08 << 21;
8962 else
8963 break;
8964 }
8965 else
8966 {
8967 /* Invert 'y' bit if not the default. */
8968 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
8969 insn ^= 0x01 << 21;
721956f4 8970 }
b25116a9
AM		 8971
8972 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5bd4f169 8973 }
e86ce104 8974
06da1e8e
AM		 8975 /* NOP out calls to undefined weak functions.
8976 We can thus call a weak function without first
8977 checking whether the function is defined. */
b25116a9
AM		 8978 else if (h != NULL
8979 && h->root.type == bfd_link_hash_undefweak
8980 && r_type == R_PPC64_REL24
8981 && relocation == 0
8982 && rel->r_addend == 0)
e86ce104 8983 {
06da1e8e
AM		 8984 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
8985 continue;
e86ce104 8986 }
65f38f15
AM		 8987 break;
8988 }
5bd4f169 8989
65f38f15 8990 /* Set `addend'. */
411e1bfb 8991 tls_type = 0;
65f38f15
AM		 8992 switch (r_type)
8993 {
8994 default:
8995 (*_bfd_error_handler)
d003868e
AM		 8996 (_("%B: unknown relocation type %d for symbol %s"),
8997 input_bfd, (int) r_type, sym_name);
5bd4f169 8998
65f38f15 8999 bfd_set_error (bfd_error_bad_value);
b34976b6 9000 ret = FALSE;
65f38f15 9001 continue;
5bd4f169 9002
65f38f15 9003 case R_PPC64_NONE:
411e1bfb 9004 case R_PPC64_TLS:
04c9666a
AM		 9005 case R_PPC64_GNU_VTINHERIT:
9006 case R_PPC64_GNU_VTENTRY:
65f38f15 9007 continue;
5bd4f169
AM		 9008
9009 /* GOT16 relocations. Like an ADDR16 using the symbol's
9010 address in the GOT as relocation value instead of the
411e1bfb 9011 symbol's value itself. Also, create a GOT entry for the
5bd4f169 9012 symbol and put the symbol value there. */
411e1bfb
AM		 9013 case R_PPC64_GOT_TLSGD16:
9014 case R_PPC64_GOT_TLSGD16_LO:
9015 case R_PPC64_GOT_TLSGD16_HI:
9016 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 9017 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 9018 goto dogot;
9019
9020 case R_PPC64_GOT_TLSLD16:
9021 case R_PPC64_GOT_TLSLD16_LO:
9022 case R_PPC64_GOT_TLSLD16_HI:
9023 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 9024 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 9025 goto dogot;
9026
9027 case R_PPC64_GOT_TPREL16_DS:
9028 case R_PPC64_GOT_TPREL16_LO_DS:
9029 case R_PPC64_GOT_TPREL16_HI:
9030 case R_PPC64_GOT_TPREL16_HA:
9031 tls_type = TLS_TLS | TLS_TPREL;
9032 goto dogot;
9033
9034 case R_PPC64_GOT_DTPREL16_DS:
9035 case R_PPC64_GOT_DTPREL16_LO_DS:
9036 case R_PPC64_GOT_DTPREL16_HI:
9037 case R_PPC64_GOT_DTPREL16_HA:
9038 tls_type = TLS_TLS | TLS_DTPREL;
9039 goto dogot;
9040
65f38f15
AM		 9041 case R_PPC64_GOT16:
9042 case R_PPC64_GOT16_LO:
9043 case R_PPC64_GOT16_HI:
9044 case R_PPC64_GOT16_HA:
9045 case R_PPC64_GOT16_DS:
9046 case R_PPC64_GOT16_LO_DS:
411e1bfb 9047 dogot:
5bd4f169
AM		 9048 {
9049 /* Relocation is to the entry for this symbol in the global
9050 offset table. */
e717da7e 9051 asection *got;
d881513a 9052 bfd_vma *offp;
5bd4f169 9053 bfd_vma off;
d881513a 9054 unsigned long indx = 0;
65f38f15 9055
d881513a
AM		 9056 if (tls_type == (TLS_TLS | TLS_LD)
9057 && (h == NULL
9058 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
e717da7e 9059 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 9060 else
5bd4f169 9061 {
d881513a 9062 struct got_entry *ent;
5bd4f169 9063
d881513a
AM		 9064 if (h != NULL)
9065 {
9066 bfd_boolean dyn = htab->elf.dynamic_sections_created;
f4656909 9067 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
d881513a 9068 || (info->shared
586119b3 9069 && SYMBOL_REFERENCES_LOCAL (info, h)))
d881513a
AM		 9070 /* This is actually a static link, or it is a
9071 -Bsymbolic link and the symbol is defined
9072 locally, or the symbol was forced to be local
9073 because of a version file. */
9074 ;
9075 else
9076 {
9077 indx = h->dynindx;
9078 unresolved_reloc = FALSE;
9079 }
9080 ent = h->got.glist;
9081 }
411e1bfb 9082 else
5bd4f169 9083 {
d881513a
AM		 9084 if (local_got_ents == NULL)
9085 abort ();
9086 ent = local_got_ents[r_symndx];
5bd4f169 9087 }
d881513a
AM		 9088
9089 for (; ent != NULL; ent = ent->next)
9090 if (ent->addend == rel->r_addend
e717da7e 9091 && ent->owner == input_bfd
d881513a
AM		 9092 && ent->tls_type == tls_type)
9093 break;
9094 if (ent == NULL)
9095 abort ();
9096 offp = &ent->got.offset;
5bd4f169 9097 }
411e1bfb 9098
e717da7e
AM		 9099 got = ppc64_elf_tdata (input_bfd)->got;
9100 if (got == NULL)
9101 abort ();
9102
411e1bfb
AM		 9103 /* The offset must always be a multiple of 8. We use the
9104 least significant bit to record whether we have already
9105 processed this entry. */
d881513a 9106 off = *offp;
411e1bfb
AM		 9107 if ((off & 1) != 0)
9108 off &= ~1;
5bd4f169
AM		 9109 else
9110 {
411e1bfb
AM		 9111 /* Generate relocs for the dynamic linker, except in
9112 the case of TLSLD where we'll use one entry per
9113 module. */
e717da7e
AM		 9114 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
9115
d881513a 9116 *offp = off | 1;
4e795f50
AM		 9117 if ((info->shared || indx != 0)
9118 && (h == NULL
9119 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
9120 || h->root.type != bfd_link_hash_undefweak))
5bd4f169 9121 {
e717da7e
AM		 9122 outrel.r_offset = (got->output_section->vma
9123 + got->output_offset
411e1bfb 9124 + off);
81407a69 9125 outrel.r_addend = rel->r_addend;
d881513a 9126 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 9127 {
411e1bfb 9128 outrel.r_addend = 0;
e515b051 9129 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 9130 if (tls_type == (TLS_TLS | TLS_GD))
9131 {
e717da7e
AM		 9132 loc = relgot->contents;
9133 loc += (relgot->reloc_count++
d881513a
AM		 9134 * sizeof (Elf64_External_Rela));
9135 bfd_elf64_swap_reloca_out (output_bfd,
9136 &outrel, loc);
e515b051 9137 outrel.r_offset += 8;
81407a69 9138 outrel.r_addend = rel->r_addend;
d881513a
AM		 9139 outrel.r_info
9140 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 9141 }
411e1bfb 9142 }
951fd09b 9143 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 9144 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 9145 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 9146 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
9147 else if (indx == 0)
81407a69
AM		 9148 {
9149 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
9150
9151 /* Write the .got section contents for the sake
9152 of prelink. */
e717da7e 9153 loc = got->contents + off;
23fbd6fa
JJ		 9154 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
9155 loc);
81407a69 9156 }
411e1bfb
AM		 9157 else
9158 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 9159
9160 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 9161 {
9162 outrel.r_addend += relocation;
9163 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 9164 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 9165 }
e717da7e
AM		 9166 loc = relgot->contents;
9167 loc += (relgot->reloc_count++
411e1bfb
AM		 9168 * sizeof (Elf64_External_Rela));
9169 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
9170 }
9171
ad8e1ba5 9172 /* Init the .got section contents here if we're not
81407a69 9173 emitting a reloc. */
d881513a 9174 else
411e1bfb 9175 {
d881513a 9176 relocation += rel->r_addend;
7b609f53
AM		 9177 if (tls_type == (TLS_TLS | TLS_LD))
9178 relocation = 1;
9179 else if (tls_type != 0)
411e1bfb 9180 {
e1918d23 9181 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 9182 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 9183 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 9184
7b609f53
AM		 9185 if (tls_type == (TLS_TLS | TLS_GD))
9186 {
9187 bfd_put_64 (output_bfd, relocation,
e717da7e 9188 got->contents + off + 8);
7b609f53
AM		 9189 relocation = 1;
9190 }
411e1bfb 9191 }
7b609f53 9192
411e1bfb 9193 bfd_put_64 (output_bfd, relocation,
e717da7e 9194 got->contents + off);
5bd4f169
AM		 9195 }
9196 }
9197
65f38f15
AM		 9198 if (off >= (bfd_vma) -2)
9199 abort ();
9200
e717da7e 9201 relocation = got->output_offset + off;
65f38f15 9202
5bd4f169 9203 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 9204 addend = -TOC_BASE_OFF;
5bd4f169 9205 }
65f38f15
AM		 9206 break;
9207
9208 case R_PPC64_PLT16_HA:
9209 case R_PPC64_PLT16_HI:
9210 case R_PPC64_PLT16_LO:
9211 case R_PPC64_PLT32:
9212 case R_PPC64_PLT64:
9213 /* Relocation is to the entry for this symbol in the
9214 procedure linkage table. */
9215
9216 /* Resolve a PLT reloc against a local symbol directly,
9217 without using the procedure linkage table. */
9218 if (h == NULL)
9219 break;
9220
411e1bfb
AM		 9221 /* It's possible that we didn't make a PLT entry for this
9222 symbol. This happens when statically linking PIC code,
9223 or when using -Bsymbolic. Go find a match if there is a
9224 PLT entry. */
4ce794b7 9225 if (htab->plt != NULL)
65f38f15 9226 {
411e1bfb
AM		 9227 struct plt_entry *ent;
9228 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9229 if (ent->addend == rel->r_addend
9230 && ent->plt.offset != (bfd_vma) -1)
9231 {
4ce794b7
AM		 9232 relocation = (htab->plt->output_section->vma
9233 + htab->plt->output_offset
411e1bfb
AM		 9234 + ent->plt.offset);
9235 unresolved_reloc = FALSE;
9236 }
65f38f15 9237 }
65f38f15 9238 break;
5bd4f169 9239
0b13192e
AM		 9240 case R_PPC64_TOC:
9241 /* Relocation value is TOC base. */
9242 relocation = TOCstart;
9243 if (r_symndx == 0)
9244 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM		 9245 else if (unresolved_reloc)
9246 ;
9247 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM		 9248 relocation += htab->stub_group[sec->id].toc_off;
9249 else
9250 unresolved_reloc = TRUE;
9251 goto dodyn2;
9252
5bd4f169
AM		 9253 /* TOC16 relocs. We want the offset relative to the TOC base,
9254 which is the address of the start of the TOC plus 0x8000.
9255 The TOC consists of sections .got, .toc, .tocbss, and .plt,
9256 in this order. */
65f38f15
AM		 9257 case R_PPC64_TOC16:
9258 case R_PPC64_TOC16_LO:
9259 case R_PPC64_TOC16_HI:
9260 case R_PPC64_TOC16_DS:
9261 case R_PPC64_TOC16_LO_DS:
9262 case R_PPC64_TOC16_HA:
ad8e1ba5 9263 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 9264 break;
9265
9266 /* Relocate against the beginning of the section. */
65f38f15
AM		 9267 case R_PPC64_SECTOFF:
9268 case R_PPC64_SECTOFF_LO:
9269 case R_PPC64_SECTOFF_HI:
9270 case R_PPC64_SECTOFF_DS:
9271 case R_PPC64_SECTOFF_LO_DS:
9272 case R_PPC64_SECTOFF_HA:
4ce794b7 9273 if (sec != NULL)
65f38f15 9274 addend -= sec->output_section->vma;
5bd4f169
AM		 9275 break;
9276
721956f4
AM		 9277 case R_PPC64_REL14:
9278 case R_PPC64_REL14_BRNTAKEN:
9279 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 9280 case R_PPC64_REL24:
9281 break;
9282
411e1bfb
AM		 9283 case R_PPC64_TPREL16:
9284 case R_PPC64_TPREL16_LO:
9285 case R_PPC64_TPREL16_HI:
9286 case R_PPC64_TPREL16_HA:
9287 case R_PPC64_TPREL16_DS:
9288 case R_PPC64_TPREL16_LO_DS:
9289 case R_PPC64_TPREL16_HIGHER:
9290 case R_PPC64_TPREL16_HIGHERA:
9291 case R_PPC64_TPREL16_HIGHEST:
9292 case R_PPC64_TPREL16_HIGHESTA:
e1918d23 9293 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 9294 if (info->shared)
9295 /* The TPREL16 relocs shouldn't really be used in shared
9296 libs as they will result in DT_TEXTREL being set, but
9297 support them anyway. */
9298 goto dodyn;
9299 break;
9300
9301 case R_PPC64_DTPREL16:
9302 case R_PPC64_DTPREL16_LO:
9303 case R_PPC64_DTPREL16_HI:
9304 case R_PPC64_DTPREL16_HA:
9305 case R_PPC64_DTPREL16_DS:
9306 case R_PPC64_DTPREL16_LO_DS:
9307 case R_PPC64_DTPREL16_HIGHER:
9308 case R_PPC64_DTPREL16_HIGHERA:
9309 case R_PPC64_DTPREL16_HIGHEST:
9310 case R_PPC64_DTPREL16_HIGHESTA:
e1918d23 9311 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 9312 break;
9313
e515b051
AM		 9314 case R_PPC64_DTPMOD64:
9315 relocation = 1;
9316 addend = 0;
9317 goto dodyn;
9318
411e1bfb 9319 case R_PPC64_TPREL64:
e1918d23 9320 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 9321 goto dodyn;
9322
9323 case R_PPC64_DTPREL64:
e1918d23 9324 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 9325 /* Fall thru */
9326
65f38f15
AM		 9327 /* Relocations that may need to be propagated if this is a
9328 dynamic object. */
04c9666a 9329 case R_PPC64_REL30:
65f38f15
AM		 9330 case R_PPC64_REL32:
9331 case R_PPC64_REL64:
9332 case R_PPC64_ADDR14:
9333 case R_PPC64_ADDR14_BRNTAKEN:
9334 case R_PPC64_ADDR14_BRTAKEN:
9335 case R_PPC64_ADDR16:
9336 case R_PPC64_ADDR16_DS:
9337 case R_PPC64_ADDR16_HA:
9338 case R_PPC64_ADDR16_HI:
9339 case R_PPC64_ADDR16_HIGHER:
9340 case R_PPC64_ADDR16_HIGHERA:
9341 case R_PPC64_ADDR16_HIGHEST:
9342 case R_PPC64_ADDR16_HIGHESTA:
9343 case R_PPC64_ADDR16_LO:
9344 case R_PPC64_ADDR16_LO_DS:
9345 case R_PPC64_ADDR24:
65f38f15
AM		 9346 case R_PPC64_ADDR32:
9347 case R_PPC64_ADDR64:
9348 case R_PPC64_UADDR16:
9349 case R_PPC64_UADDR32:
9350 case R_PPC64_UADDR64:
ec338859
AM		 9351 /* r_symndx will be zero only for relocs against symbols
9352 from removed linkonce sections, or sections discarded by
9353 a linker script. */
411e1bfb 9354 dodyn:
5d1634d7
AM		 9355 if (r_symndx == 0)
9356 break;
9357 /* Fall thru. */
9358
0b13192e 9359 dodyn2:
5d1634d7 9360 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 9361 break;
9362
41bd81ab
AM		 9363 if (NO_OPD_RELOCS && is_opd)
9364 break;
9365
65f38f15 9366 if ((info->shared
4e795f50
AM		 9367 && (h == NULL
9368 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
9369 || h->root.type != bfd_link_hash_undefweak)
411e1bfb 9370 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 9371 || !SYMBOL_CALLS_LOCAL (info, h)))
f4656909
AM		 9372 || (ELIMINATE_COPY_RELOCS
9373 && !info->shared
65f38f15
AM		 9374 && h != NULL
9375 && h->dynindx != -1
9376 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 9377 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
9378 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
65f38f15
AM		 9379 {
9380 Elf_Internal_Rela outrel;
b34976b6 9381 bfd_boolean skip, relocate;
65f38f15 9382 asection *sreloc;
947216bf 9383 bfd_byte *loc;
1cf1f670 9384 bfd_vma out_off;
65f38f15
AM		 9385
9386 /* When generating a dynamic object, these relocations
9387 are copied into the output file to be resolved at run
9388 time. */
9389
b34976b6
AM		 9390 skip = FALSE;
9391 relocate = FALSE;
65f38f15 9392
1cf1f670
AM		 9393 out_off = _bfd_elf_section_offset (output_bfd, info,
9394 input_section, rel->r_offset);
9395 if (out_off == (bfd_vma) -1)
b34976b6 9396 skip = TRUE;
1cf1f670 9397 else if (out_off == (bfd_vma) -2)
b34976b6 9398 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 9399 out_off += (input_section->output_section->vma
9400 + input_section->output_offset);
9401 outrel.r_offset = out_off;
411e1bfb 9402 outrel.r_addend = rel->r_addend;
65f38f15 9403
1cf1f670
AM		 9404 /* Optimize unaligned reloc use. */
9405 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
9406 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
9407 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
9408 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
9409 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
9410 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
9411 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
9412 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
9413 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
9414
65f38f15 9415 if (skip)
0bb2d96a 9416 memset (&outrel, 0, sizeof outrel);
f6c52c13 9417 else if (!SYMBOL_REFERENCES_LOCAL (info, h)
0b13192e
AM		 9418 && !is_opd
9419 && r_type != R_PPC64_TOC)
0bb2d96a 9420 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
65f38f15
AM		 9421 else
9422 {
41bd81ab
AM		 9423 /* This symbol is local, or marked to become local,
9424 or this is an opd section reloc which must point
9425 at a local function. */
65f38f15 9426 outrel.r_addend += relocation;
e86ce104 9427 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 9428 {
3fad3c7c 9429 if (is_opd && h != NULL)
afbe61cf
AM		 9430 {
9431 /* Lie about opd entries. This case occurs
9432 when building shared libraries and we
9433 reference a function in another shared
3fad3c7c
AM		 9434 lib. The same thing happens for a weak
9435 definition in an application that's
9436 overridden by a strong definition in a
9437 shared lib. (I believe this is a generic
9438 bug in binutils handling of weak syms.)
9439 In these cases we won't use the opd
1e2f5b6e 9440 entry in this lib. */
b34976b6 9441 unresolved_reloc = FALSE;
afbe61cf 9442 }
65f38f15 9443 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 9444
9445 /* We need to relocate .opd contents for ld.so.
9446 Prelink also wants simple and consistent rules
9447 for relocs. This make all RELATIVE relocs have
9448 *r_offset equal to r_addend. */
9449 relocate = TRUE;
65f38f15
AM		 9450 }
9451 else
9452 {
9453 long indx = 0;
9454
41bd81ab 9455 if (bfd_is_abs_section (sec))
65f38f15
AM		 9456 ;
9457 else if (sec == NULL || sec->owner == NULL)
9458 {
9459 bfd_set_error (bfd_error_bad_value);
b34976b6 9460 return FALSE;
65f38f15
AM		 9461 }
9462 else
9463 {
9464 asection *osec;
9465
9466 osec = sec->output_section;
9467 indx = elf_section_data (osec)->dynindx;
9468
9469 /* We are turning this relocation into one
9470 against a section symbol, so subtract out
9471 the output section's address but not the
9472 offset of the input section in the output
9473 section. */
9474 outrel.r_addend -= osec->vma;
9475 }
9476
9477 outrel.r_info = ELF64_R_INFO (indx, r_type);
9478 }
9479 }
9480
9481 sreloc = elf_section_data (input_section)->sreloc;
9482 if (sreloc == NULL)
9483 abort ();
9484
947216bf
AM		 9485 loc = sreloc->contents;
9486 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 9487 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
9488
9489 /* If this reloc is against an external symbol, it will
9490 be computed at runtime, so there's no need to do
81407a69
AM		 9491 anything now. However, for the sake of prelink ensure
9492 that the section contents are a known value. */
65f38f15 9493 if (! relocate)
81407a69
AM		 9494 {
9495 unresolved_reloc = FALSE;
9496 /* The value chosen here is quite arbitrary as ld.so
9497 ignores section contents except for the special
9498 case of .opd where the contents might be accessed
9499 before relocation. Choose zero, as that won't
9500 cause reloc overflow. */
9501 relocation = 0;
9502 addend = 0;
9503 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
9504 to improve backward compatibility with older
9505 versions of ld. */
9506 if (r_type == R_PPC64_ADDR64)
9507 addend = outrel.r_addend;
9508 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 9509 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 9510 addend = (input_section->output_section->vma
9511 + input_section->output_offset
9512 + rel->r_offset);
81407a69 9513 }
65f38f15 9514 }
5bd4f169
AM		 9515 break;
9516
65f38f15
AM		 9517 case R_PPC64_COPY:
9518 case R_PPC64_GLOB_DAT:
9519 case R_PPC64_JMP_SLOT:
9520 case R_PPC64_RELATIVE:
9521 /* We shouldn't ever see these dynamic relocs in relocatable
9522 files. */
ae9a127f 9523 /* Fall through. */
65f38f15
AM		 9524
9525 case R_PPC64_PLTGOT16:
9526 case R_PPC64_PLTGOT16_DS:
9527 case R_PPC64_PLTGOT16_HA:
9528 case R_PPC64_PLTGOT16_HI:
9529 case R_PPC64_PLTGOT16_LO:
9530 case R_PPC64_PLTGOT16_LO_DS:
9531 case R_PPC64_PLTREL32:
9532 case R_PPC64_PLTREL64:
9533 /* These ones haven't been implemented yet. */
9534
9535 (*_bfd_error_handler)
d003868e
AM		 9536 (_("%B: relocation %s is not supported for symbol %s."),
9537 input_bfd,
4ce794b7 9538 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 9539
9540 bfd_set_error (bfd_error_invalid_operation);
b34976b6 9541 ret = FALSE;
5bd4f169 9542 continue;
65f38f15 9543 }
5bd4f169 9544
65f38f15
AM		 9545 /* Do any further special processing. */
9546 switch (r_type)
9547 {
9548 default:
9549 break;
9550
9551 case R_PPC64_ADDR16_HA:
9552 case R_PPC64_ADDR16_HIGHERA:
9553 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM		 9554 case R_PPC64_GOT16_HA:
9555 case R_PPC64_PLTGOT16_HA:
65f38f15
AM		 9556 case R_PPC64_PLT16_HA:
9557 case R_PPC64_TOC16_HA:
9558 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 9559 case R_PPC64_TPREL16_HA:
9560 case R_PPC64_DTPREL16_HA:
9561 case R_PPC64_GOT_TLSGD16_HA:
9562 case R_PPC64_GOT_TLSLD16_HA:
9563 case R_PPC64_GOT_TPREL16_HA:
9564 case R_PPC64_GOT_DTPREL16_HA:
9565 case R_PPC64_TPREL16_HIGHER:
9566 case R_PPC64_TPREL16_HIGHERA:
9567 case R_PPC64_TPREL16_HIGHEST:
9568 case R_PPC64_TPREL16_HIGHESTA:
9569 case R_PPC64_DTPREL16_HIGHER:
9570 case R_PPC64_DTPREL16_HIGHERA:
9571 case R_PPC64_DTPREL16_HIGHEST:
9572 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 9573 /* It's just possible that this symbol is a weak symbol
9574 that's not actually defined anywhere. In that case,
9575 'sec' would be NULL, and we should leave the symbol
9576 alone (it will be set to zero elsewhere in the link). */
9577 if (sec != NULL)
e515b051
AM		 9578 /* Add 0x10000 if sign bit in 0:15 is set.
9579 Bits 0:15 are not used. */
9580 addend += 0x8000;
65f38f15
AM		 9581 break;
9582
9583 case R_PPC64_ADDR16_DS:
9584 case R_PPC64_ADDR16_LO_DS:
9585 case R_PPC64_GOT16_DS:
9586 case R_PPC64_GOT16_LO_DS:
9587 case R_PPC64_PLT16_LO_DS:
9588 case R_PPC64_SECTOFF_DS:
9589 case R_PPC64_SECTOFF_LO_DS:
9590 case R_PPC64_TOC16_DS:
9591 case R_PPC64_TOC16_LO_DS:
9592 case R_PPC64_PLTGOT16_DS:
9593 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 9594 case R_PPC64_GOT_TPREL16_DS:
9595 case R_PPC64_GOT_TPREL16_LO_DS:
9596 case R_PPC64_GOT_DTPREL16_DS:
9597 case R_PPC64_GOT_DTPREL16_LO_DS:
9598 case R_PPC64_TPREL16_DS:
9599 case R_PPC64_TPREL16_LO_DS:
9600 case R_PPC64_DTPREL16_DS:
9601 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 9602 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
9603 mask = 3;
9604 /* If this reloc is against an lq insn, then the value must be
9605 a multiple of 16. This is somewhat of a hack, but the
9606 "correct" way to do this by defining _DQ forms of all the
9607 _DS relocs bloats all reloc switches in this file. It
9608 doesn't seem to make much sense to use any of these relocs
9609 in data, so testing the insn should be safe. */
494dac0c 9610 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 9611 mask = 15;
9612 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 9613 {
9614 (*_bfd_error_handler)
d003868e
AM		 9615 (_("%B: error: relocation %s not a multiple of %d"),
9616 input_bfd,
4ce794b7 9617 ppc64_elf_howto_table[r_type]->name,
adadcc0c 9618 mask + 1);
65f38f15 9619 bfd_set_error (bfd_error_bad_value);
b34976b6 9620 ret = FALSE;
65f38f15
AM		 9621 continue;
9622 }
9623 break;
5bd4f169
AM		 9624 }
9625
239e1f3a
AM		 9626 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
9627 because such sections are not SEC_ALLOC and thus ld.so will
9628 not process them. */
65f38f15 9629 if (unresolved_reloc
239e1f3a 9630 && !((input_section->flags & SEC_DEBUGGING) != 0
65f38f15 9631 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
9c07fe7c
AM		 9632 {
9633 (*_bfd_error_handler)
d003868e
AM		 9634 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
9635 input_bfd,
9636 input_section,
9c07fe7c 9637 (long) rel->r_offset,
7b609f53 9638 ppc64_elf_howto_table[(int) r_type]->name,
9c07fe7c 9639 h->root.root.string);
b34976b6 9640 ret = FALSE;
9c07fe7c 9641 }
5bd4f169 9642
65f38f15 9643 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 9644 input_bfd,
9645 input_section,
9646 contents,
411e1bfb 9647 rel->r_offset,
5bd4f169
AM		 9648 relocation,
9649 addend);
9650
ef60b7ff 9651 if (r != bfd_reloc_ok)
5bd4f169 9652 {
cd27b276
AM		 9653 if (sym_name == NULL)
9654 sym_name = "(null)";
9655 if (r == bfd_reloc_overflow)
5bd4f169 9656 {
cd27b276
AM		 9657 if (warned)
9658 continue;
9659 if (h != NULL
9660 && h->root.type == bfd_link_hash_undefweak
4ce794b7 9661 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 9662 {
9663 /* Assume this is a call protected by other code that
9664 detects the symbol is undefined. If this is the case,
9665 we can safely ignore the overflow. If not, the
9666 program is hosed anyway, and a little warning isn't
9667 going to help. */
9668
9669 continue;
9670 }
9671
ef60b7ff 9672 if (!((*info->callbacks->reloc_overflow)
4ce794b7 9673 (info, sym_name, ppc64_elf_howto_table[r_type]->name,
411e1bfb 9674 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 9675 return FALSE;
ef60b7ff
AM		 9676 }
9677 else
9678 {
9679 (*_bfd_error_handler)
d003868e
AM		 9680 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
9681 input_bfd,
9682 input_section,
7b609f53 9683 (long) rel->r_offset,
4ce794b7 9684 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 9685 sym_name,
9686 (int) r);
b34976b6 9687 ret = FALSE;
ef60b7ff 9688 }
5bd4f169 9689 }
5bd4f169
AM		 9690 }
9691
5bd4f169
AM		 9692 return ret;
9693}
9694
754021d0
AM		 9695/* Adjust the value of any local symbols in opd sections. */
9696
9697static bfd_boolean
9698ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
9699 const char *name ATTRIBUTE_UNUSED,
9700 Elf_Internal_Sym *elfsym,
9701 asection *input_sec,
9702 struct elf_link_hash_entry *h)
9703{
4025353c 9704 long *opd_adjust, adjust;
754021d0
AM		 9705 bfd_vma value;
9706
4025353c
AM		 9707 if (h != NULL)
9708 return TRUE;
9709
9710 opd_adjust = get_opd_info (input_sec);
9711 if (opd_adjust == NULL)
754021d0
AM		 9712 return TRUE;
9713
9714 value = elfsym->st_value - input_sec->output_offset;
9715 if (!info->relocatable)
9716 value -= input_sec->output_section->vma;
9717
3f764659 9718 adjust = opd_adjust[value / 8];
4025353c
AM		 9719 if (adjust == -1)
9720 elfsym->st_value = 0;
9721 else
9722 elfsym->st_value += adjust;
754021d0
AM		 9723 return TRUE;
9724}
9725
5bd4f169
AM		 9726/* Finish up dynamic symbol handling. We set the contents of various
9727 dynamic sections here. */
9728
b34976b6 9729static bfd_boolean
4ce794b7
AM		 9730ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
9731 struct bfd_link_info *info,
9732 struct elf_link_hash_entry *h,
9733 Elf_Internal_Sym *sym)
5bd4f169 9734{
65f38f15 9735 struct ppc_link_hash_table *htab;
5bd4f169 9736 bfd *dynobj;
8387904d
AM		 9737 struct plt_entry *ent;
9738 Elf_Internal_Rela rela;
9739 bfd_byte *loc;
5bd4f169 9740
65f38f15
AM		 9741 htab = ppc_hash_table (info);
9742 dynobj = htab->elf.dynobj;
5bd4f169 9743
8387904d
AM		 9744 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
9745 if (ent->plt.offset != (bfd_vma) -1)
9746 {
9747 /* This symbol has an entry in the procedure linkage
9748 table. Set it up. */
9749
9750 if (htab->plt == NULL
9751 || htab->relplt == NULL
9752 || htab->glink == NULL)
9753 abort ();
9754
9755 /* Create a JMP_SLOT reloc to inform the dynamic linker to
9756 fill in the PLT entry. */
9757 rela.r_offset = (htab->plt->output_section->vma
9758 + htab->plt->output_offset
9759 + ent->plt.offset);
9760 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
9761 rela.r_addend = ent->addend;
9762
9763 loc = htab->relplt->contents;
9764 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
9765 * sizeof (Elf64_External_Rela));
9766 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
9767 }
5bd4f169
AM		 9768
9769 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
9770 {
5bd4f169 9771 Elf_Internal_Rela rela;
947216bf 9772 bfd_byte *loc;
5bd4f169 9773
65f38f15 9774 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 9775
65f38f15
AM		 9776 if (h->dynindx == -1
9777 || (h->root.type != bfd_link_hash_defined
9778 && h->root.type != bfd_link_hash_defweak)
4ce794b7 9779 || htab->relbss == NULL)
65f38f15 9780 abort ();
5bd4f169
AM		 9781
9782 rela.r_offset = (h->root.u.def.value
9783 + h->root.u.def.section->output_section->vma
9784 + h->root.u.def.section->output_offset);
9785 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
9786 rela.r_addend = 0;
4ce794b7
AM		 9787 loc = htab->relbss->contents;
9788 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 9789 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 9790 }
9791
5bd4f169
AM		 9792 /* Mark some specially defined symbols as absolute. */
9793 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
9794 sym->st_shndx = SHN_ABS;
9795
b34976b6 9796 return TRUE;
5bd4f169
AM		 9797}
9798
65f38f15
AM		 9799/* Used to decide how to sort relocs in an optimal manner for the
9800 dynamic linker, before writing them out. */
9801
9802static enum elf_reloc_type_class
4ce794b7 9803ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 9804{
04c9666a 9805 enum elf_ppc64_reloc_type r_type;
a33d1f77 9806
4ce794b7 9807 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 9808 switch (r_type)
65f38f15
AM		 9809 {
9810 case R_PPC64_RELATIVE:
9811 return reloc_class_relative;
9812 case R_PPC64_JMP_SLOT:
9813 return reloc_class_plt;
9814 case R_PPC64_COPY:
9815 return reloc_class_copy;
9816 default:
9817 return reloc_class_normal;
9818 }
9819}
9820
5bd4f169
AM		 9821/* Finish up the dynamic sections. */
9822
b34976b6 9823static bfd_boolean
4ce794b7
AM		 9824ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
9825 struct bfd_link_info *info)
5bd4f169 9826{
65f38f15
AM		 9827 struct ppc_link_hash_table *htab;
9828 bfd *dynobj;
5bd4f169 9829 asection *sdyn;
5bd4f169 9830
65f38f15
AM		 9831 htab = ppc_hash_table (info);
9832 dynobj = htab->elf.dynobj;
5bd4f169
AM		 9833 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
9834
65f38f15 9835 if (htab->elf.dynamic_sections_created)
5bd4f169 9836 {
5bd4f169
AM		 9837 Elf64_External_Dyn *dyncon, *dynconend;
9838
4ce794b7 9839 if (sdyn == NULL || htab->got == NULL)
65f38f15 9840 abort ();
5bd4f169
AM		 9841
9842 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 9843 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM		 9844 for (; dyncon < dynconend; dyncon++)
9845 {
9846 Elf_Internal_Dyn dyn;
19397422 9847 asection *s;
5bd4f169
AM		 9848
9849 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
9850
9851 switch (dyn.d_tag)
9852 {
65f38f15
AM		 9853 default:
9854 continue;
5bd4f169 9855
5d1634d7 9856 case DT_PPC64_GLINK:
4ce794b7 9857 s = htab->glink;
6348e046 9858 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 9859 /* We stupidly defined DT_PPC64_GLINK to be the start
9860 of glink rather than the first entry point, which is
9861 what ld.so needs, and now have a bigger stub to
9862 support automatic multiple TOCs. */
9863 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 9864 break;
9865
19397422
AM		 9866 case DT_PPC64_OPD:
9867 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 9868 if (s == NULL)
9869 continue;
9870 dyn.d_un.d_ptr = s->vma;
19397422
AM		 9871 break;
9872
9873 case DT_PPC64_OPDSZ:
9874 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 9875 if (s == NULL)
9876 continue;
eea6121a 9877 dyn.d_un.d_val = s->size;
19397422
AM		 9878 break;
9879
65f38f15 9880 case DT_PLTGOT:
4ce794b7 9881 s = htab->plt;
6348e046 9882 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 9883 break;
9884
9885 case DT_JMPREL:
4ce794b7 9886 s = htab->relplt;
6348e046 9887 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 9888 break;
5bd4f169 9889
65f38f15 9890 case DT_PLTRELSZ:
eea6121a 9891 dyn.d_un.d_val = htab->relplt->size;
5d1634d7
AM		 9892 break;
9893
9894 case DT_RELASZ:
9895 /* Don't count procedure linkage table relocs in the
9896 overall reloc count. */
4ce794b7 9897 s = htab->relplt;
6348e046
AM		 9898 if (s == NULL)
9899 continue;
eea6121a 9900 dyn.d_un.d_val -= s->size;
6348e046
AM		 9901 break;
9902
9903 case DT_RELA:
9904 /* We may not be using the standard ELF linker script.
9905 If .rela.plt is the first .rela section, we adjust
9906 DT_RELA to not include it. */
4ce794b7 9907 s = htab->relplt;
6348e046
AM		 9908 if (s == NULL)
9909 continue;
9910 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
9911 continue;
eea6121a 9912 dyn.d_un.d_ptr += s->size;
65f38f15 9913 break;
5bd4f169 9914 }
5bd4f169 9915
65f38f15 9916 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 9917 }
5bd4f169
AM		 9918 }
9919
eea6121a 9920 if (htab->got != NULL && htab->got->size != 0)
5d1634d7
AM		 9921 {
9922 /* Fill in the first entry in the global offset table.
9923 We use it to hold the link-time TOCbase. */
9924 bfd_put_64 (output_bfd,
60ee0d4a 9925 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 9926 htab->got->contents);
5d1634d7
AM		 9927
9928 /* Set .got entry size. */
4ce794b7 9929 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 9930 }
9931
eea6121a 9932 if (htab->plt != NULL && htab->plt->size != 0)
5d1634d7
AM		 9933 {
9934 /* Set .plt entry size. */
4ce794b7 9935 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 9936 = PLT_ENTRY_SIZE;
9937 }
9938
e717da7e
AM		 9939 /* We need to handle writing out multiple GOT sections ourselves,
9940 since we didn't add them to DYNOBJ. */
9941 while ((dynobj = dynobj->link_next) != NULL)
9942 {
9943 asection *s;
9944 s = ppc64_elf_tdata (dynobj)->got;
9945 if (s != NULL
eea6121a 9946 && s->size != 0
e717da7e
AM		 9947 && s->output_section != bfd_abs_section_ptr
9948 && !bfd_set_section_contents (output_bfd, s->output_section,
9949 s->contents, s->output_offset,
eea6121a 9950 s->size))
e717da7e
AM		 9951 return FALSE;
9952 s = ppc64_elf_tdata (dynobj)->relgot;
9953 if (s != NULL
eea6121a 9954 && s->size != 0
e717da7e
AM		 9955 && s->output_section != bfd_abs_section_ptr
9956 && !bfd_set_section_contents (output_bfd, s->output_section,
9957 s->contents, s->output_offset,
eea6121a 9958 s->size))
e717da7e
AM		 9959 return FALSE;
9960 }
f6c52c13 9961
b34976b6 9962 return TRUE;
5bd4f169
AM		 9963}
9964
5bd4f169 9965#include "elf64-target.h"
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