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[thirdparty/binutils-gdb.git] / bfd / elf64-ppc.c
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5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
3eb128b2 2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005
b2a8e766 3 Free Software Foundation, Inc.
5bd4f169
AM		 4 Written by Linus Nordberg, Swox AB <info@swox.com>,
5 based on elf32-ppc.c by Ian Lance Taylor.
d37c89e5 6 Largely rewritten by Alan Modra <amodra@bigpond.net.au>
5bd4f169 7
ae9a127f 8 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 9
ae9a127f
NC		 10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
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.,
3e110533 22 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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
ad8e1ba5 70#define elf_backend_got_header_size 8
ad8e1ba5
AM		 71#define elf_backend_can_gc_sections 1
72#define elf_backend_can_refcount 1
73#define elf_backend_rela_normal 1
74
e717da7e 75#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5
AM		 76#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
77#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
78#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
79#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
80#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
90e3cdf2 81#define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
ad8e1ba5
AM		 82
83#define elf_backend_object_p ppc64_elf_object_p
d37c89e5
AM		 84#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
85#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
ad8e1ba5
AM		 86#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
87#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
555cd476 88#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
8387904d
AM		 89#define elf_backend_check_directives ppc64_elf_check_directives
90#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
ad8e1ba5
AM		 91#define elf_backend_check_relocs ppc64_elf_check_relocs
92#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
93#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
94#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
95#define elf_backend_hide_symbol ppc64_elf_hide_symbol
96#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
97#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
98#define elf_backend_relocate_section ppc64_elf_relocate_section
99#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
100#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
101#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
754021d0 102#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
29ef7005 103#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 104
5bd4f169
AM		 105/* The name of the dynamic interpreter. This is put in the .interp
106 section. */
107#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
108
109/* The size in bytes of an entry in the procedure linkage table. */
110#define PLT_ENTRY_SIZE 24
111
112/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 113#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM		 114
115/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 116#define TOC_BASE_OFF 0x8000
117
118/* Offset of tp and dtp pointers from start of TLS block. */
119#define TP_OFFSET 0x7000
120#define DTP_OFFSET 0x8000
5bd4f169 121
ad8e1ba5
AM		 122/* .plt call stub instructions. The normal stub is like this, but
123 sometimes the .plt entry crosses a 64k boundary and we need to
124 insert an addis to adjust r12. */
125#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM		 126#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
127#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
128#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
129#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
130#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
131 /* ld %r11,xxx+16@l(%r12) */
132#define BCTR 0x4e800420 /* bctr */
133
5d1634d7 134
ad8e1ba5
AM		 135#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
136#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
137
138#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
139
140/* glink call stub instructions. We enter with the index in R0, and the
141 address of glink entry in CTR. From that, we can calculate PLT0. */
142#define GLINK_CALL_STUB_SIZE (16*4)
143#define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
144#define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
145#define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
146#define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
147#define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
148#define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
149#define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
150 /* sub %r12,%r12,%r11 */
151#define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
152#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
153 /* ld %r11,xxx@l(%r12) */
154#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
155 /* ld %r2,8(%r12) */
156 /* mtctr %r11 */
157 /* ld %r11,16(%r12) */
158 /* bctr */
5d1634d7
AM		 159
160/* Pad with this. */
161#define NOP 0x60000000
162
721956f4
AM		 163/* Some other nops. */
164#define CROR_151515 0x4def7b82
165#define CROR_313131 0x4ffffb82
166
cedb70c5 167/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 168#define LI_R0_0 0x38000000 /* li %r0,0 */
169#define B_DOT 0x48000000 /* b . */
170
171/* After that, we need two instructions to load the index, followed by
172 a branch. */
173#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 174#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 175
deb0e272
AM		 176/* Instructions used by the save and restore reg functions. */
177#define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
178#define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
179#define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
180#define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
82bd7b59
AM		 181#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
182#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
deb0e272
AM		 183#define LI_R12_0 0x39800000 /* li %r12,0 */
184#define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
185#define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
186#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
82bd7b59
AM		 187#define BLR 0x4e800020 /* blr */
188
41bd81ab
AM		 189/* Since .opd is an array of descriptors and each entry will end up
190 with identical R_PPC64_RELATIVE relocs, there is really no need to
191 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 192 relocate .opd without reloc entries. */
41bd81ab
AM		 193#ifndef NO_OPD_RELOCS
194#define NO_OPD_RELOCS 0
195#endif
5bd4f169 196\f
f5e87a1d 197#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 198
5bd4f169 199/* Relocation HOWTO's. */
04c9666a 200static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 201
202static reloc_howto_type ppc64_elf_howto_raw[] = {
203 /* This reloc does nothing. */
204 HOWTO (R_PPC64_NONE, /* type */
205 0, /* rightshift */
411e1bfb
AM		 206 2, /* size (0 = byte, 1 = short, 2 = long) */
207 32, /* bitsize */
b34976b6 208 FALSE, /* pc_relative */
5bd4f169 209 0, /* bitpos */
f5e87a1d 210 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 211 bfd_elf_generic_reloc, /* special_function */
212 "R_PPC64_NONE", /* name */
b34976b6 213 FALSE, /* partial_inplace */
d006db6c 214 0, /* src_mask */
5bd4f169 215 0, /* dst_mask */
b34976b6 216 FALSE), /* pcrel_offset */
5bd4f169
AM		 217
218 /* A standard 32 bit relocation. */
219 HOWTO (R_PPC64_ADDR32, /* type */
220 0, /* rightshift */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
222 32, /* bitsize */
b34976b6 223 FALSE, /* pc_relative */
5bd4f169
AM		 224 0, /* bitpos */
225 complain_overflow_bitfield, /* complain_on_overflow */
226 bfd_elf_generic_reloc, /* special_function */
227 "R_PPC64_ADDR32", /* name */
b34976b6 228 FALSE, /* partial_inplace */
5bd4f169
AM		 229 0, /* src_mask */
230 0xffffffff, /* dst_mask */
b34976b6 231 FALSE), /* pcrel_offset */
5bd4f169
AM		 232
233 /* An absolute 26 bit branch; the lower two bits must be zero.
234 FIXME: we don't check that, we just clear them. */
235 HOWTO (R_PPC64_ADDR24, /* type */
236 0, /* rightshift */
237 2, /* size (0 = byte, 1 = short, 2 = long) */
238 26, /* bitsize */
b34976b6 239 FALSE, /* pc_relative */
5bd4f169
AM		 240 0, /* bitpos */
241 complain_overflow_bitfield, /* complain_on_overflow */
242 bfd_elf_generic_reloc, /* special_function */
243 "R_PPC64_ADDR24", /* name */
b34976b6 244 FALSE, /* partial_inplace */
d006db6c 245 0, /* src_mask */
f5e87a1d 246 0x03fffffc, /* dst_mask */
b34976b6 247 FALSE), /* pcrel_offset */
5bd4f169
AM		 248
249 /* A standard 16 bit relocation. */
250 HOWTO (R_PPC64_ADDR16, /* type */
251 0, /* rightshift */
252 1, /* size (0 = byte, 1 = short, 2 = long) */
253 16, /* bitsize */
b34976b6 254 FALSE, /* pc_relative */
5bd4f169
AM		 255 0, /* bitpos */
256 complain_overflow_bitfield, /* complain_on_overflow */
257 bfd_elf_generic_reloc, /* special_function */
258 "R_PPC64_ADDR16", /* name */
b34976b6 259 FALSE, /* partial_inplace */
5bd4f169
AM		 260 0, /* src_mask */
261 0xffff, /* dst_mask */
b34976b6 262 FALSE), /* pcrel_offset */
5bd4f169
AM		 263
264 /* A 16 bit relocation without overflow. */
265 HOWTO (R_PPC64_ADDR16_LO, /* type */
266 0, /* rightshift */
267 1, /* size (0 = byte, 1 = short, 2 = long) */
268 16, /* bitsize */
b34976b6 269 FALSE, /* pc_relative */
5bd4f169
AM		 270 0, /* bitpos */
271 complain_overflow_dont,/* complain_on_overflow */
272 bfd_elf_generic_reloc, /* special_function */
273 "R_PPC64_ADDR16_LO", /* name */
b34976b6 274 FALSE, /* partial_inplace */
5bd4f169
AM		 275 0, /* src_mask */
276 0xffff, /* dst_mask */
b34976b6 277 FALSE), /* pcrel_offset */
5bd4f169
AM		 278
279 /* Bits 16-31 of an address. */
280 HOWTO (R_PPC64_ADDR16_HI, /* type */
281 16, /* rightshift */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
283 16, /* bitsize */
b34976b6 284 FALSE, /* pc_relative */
5bd4f169
AM		 285 0, /* bitpos */
286 complain_overflow_dont, /* complain_on_overflow */
287 bfd_elf_generic_reloc, /* special_function */
288 "R_PPC64_ADDR16_HI", /* name */
b34976b6 289 FALSE, /* partial_inplace */
5bd4f169
AM		 290 0, /* src_mask */
291 0xffff, /* dst_mask */
b34976b6 292 FALSE), /* pcrel_offset */
5bd4f169
AM		 293
294 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
295 bits, treated as a signed number, is negative. */
296 HOWTO (R_PPC64_ADDR16_HA, /* type */
297 16, /* rightshift */
298 1, /* size (0 = byte, 1 = short, 2 = long) */
299 16, /* bitsize */
b34976b6 300 FALSE, /* pc_relative */
5bd4f169
AM		 301 0, /* bitpos */
302 complain_overflow_dont, /* complain_on_overflow */
805fc799 303 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 304 "R_PPC64_ADDR16_HA", /* name */
b34976b6 305 FALSE, /* partial_inplace */
5bd4f169
AM		 306 0, /* src_mask */
307 0xffff, /* dst_mask */
b34976b6 308 FALSE), /* pcrel_offset */
5bd4f169
AM		 309
310 /* An absolute 16 bit branch; the lower two bits must be zero.
311 FIXME: we don't check that, we just clear them. */
312 HOWTO (R_PPC64_ADDR14, /* type */
313 0, /* rightshift */
314 2, /* size (0 = byte, 1 = short, 2 = long) */
315 16, /* bitsize */
b34976b6 316 FALSE, /* pc_relative */
5bd4f169
AM		 317 0, /* bitpos */
318 complain_overflow_bitfield, /* complain_on_overflow */
2441e016 319 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 320 "R_PPC64_ADDR14", /* name */
b34976b6 321 FALSE, /* partial_inplace */
d006db6c 322 0, /* src_mask */
f5e87a1d 323 0x0000fffc, /* dst_mask */
b34976b6 324 FALSE), /* pcrel_offset */
5bd4f169
AM		 325
326 /* An absolute 16 bit branch, for which bit 10 should be set to
327 indicate that the branch is expected to be taken. The lower two
328 bits must be zero. */
329 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
330 0, /* rightshift */
331 2, /* size (0 = byte, 1 = short, 2 = long) */
332 16, /* bitsize */
b34976b6 333 FALSE, /* pc_relative */
5bd4f169
AM		 334 0, /* bitpos */
335 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 336 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 337 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 338 FALSE, /* partial_inplace */
d006db6c 339 0, /* src_mask */
f5e87a1d 340 0x0000fffc, /* dst_mask */
b34976b6 341 FALSE), /* pcrel_offset */
5bd4f169
AM		 342
343 /* An absolute 16 bit branch, for which bit 10 should be set to
344 indicate that the branch is not expected to be taken. The lower
345 two bits must be zero. */
346 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
347 0, /* rightshift */
348 2, /* size (0 = byte, 1 = short, 2 = long) */
349 16, /* bitsize */
b34976b6 350 FALSE, /* pc_relative */
5bd4f169
AM		 351 0, /* bitpos */
352 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 353 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 354 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 355 FALSE, /* partial_inplace */
d006db6c 356 0, /* src_mask */
f5e87a1d 357 0x0000fffc, /* dst_mask */
b34976b6 358 FALSE), /* pcrel_offset */
5bd4f169
AM		 359
360 /* A relative 26 bit branch; the lower two bits must be zero. */
361 HOWTO (R_PPC64_REL24, /* type */
362 0, /* rightshift */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
364 26, /* bitsize */
b34976b6 365 TRUE, /* pc_relative */
5bd4f169
AM		 366 0, /* bitpos */
367 complain_overflow_signed, /* complain_on_overflow */
2441e016 368 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 369 "R_PPC64_REL24", /* name */
b34976b6 370 FALSE, /* partial_inplace */
d006db6c 371 0, /* src_mask */
f5e87a1d 372 0x03fffffc, /* dst_mask */
b34976b6 373 TRUE), /* pcrel_offset */
5bd4f169
AM		 374
375 /* A relative 16 bit branch; the lower two bits must be zero. */
376 HOWTO (R_PPC64_REL14, /* type */
377 0, /* rightshift */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
379 16, /* bitsize */
b34976b6 380 TRUE, /* pc_relative */
5bd4f169
AM		 381 0, /* bitpos */
382 complain_overflow_signed, /* complain_on_overflow */
2441e016 383 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 384 "R_PPC64_REL14", /* name */
b34976b6 385 FALSE, /* partial_inplace */
d006db6c 386 0, /* src_mask */
f5e87a1d 387 0x0000fffc, /* dst_mask */
b34976b6 388 TRUE), /* pcrel_offset */
5bd4f169
AM		 389
390 /* A relative 16 bit branch. Bit 10 should be set to indicate that
391 the branch is expected to be taken. The lower two bits must be
392 zero. */
393 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
394 0, /* rightshift */
395 2, /* size (0 = byte, 1 = short, 2 = long) */
396 16, /* bitsize */
b34976b6 397 TRUE, /* pc_relative */
5bd4f169
AM		 398 0, /* bitpos */
399 complain_overflow_signed, /* complain_on_overflow */
805fc799 400 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 401 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 402 FALSE, /* partial_inplace */
d006db6c 403 0, /* src_mask */
f5e87a1d 404 0x0000fffc, /* dst_mask */
b34976b6 405 TRUE), /* pcrel_offset */
5bd4f169
AM		 406
407 /* A relative 16 bit branch. Bit 10 should be set to indicate that
408 the branch is not expected to be taken. The lower two bits must
409 be zero. */
410 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
411 0, /* rightshift */
412 2, /* size (0 = byte, 1 = short, 2 = long) */
413 16, /* bitsize */
b34976b6 414 TRUE, /* pc_relative */
5bd4f169
AM		 415 0, /* bitpos */
416 complain_overflow_signed, /* complain_on_overflow */
805fc799 417 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 418 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 419 FALSE, /* partial_inplace */
d006db6c 420 0, /* src_mask */
f5e87a1d 421 0x0000fffc, /* dst_mask */
b34976b6 422 TRUE), /* pcrel_offset */
5bd4f169
AM		 423
424 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
425 symbol. */
426 HOWTO (R_PPC64_GOT16, /* type */
427 0, /* rightshift */
428 1, /* size (0 = byte, 1 = short, 2 = long) */
429 16, /* bitsize */
b34976b6 430 FALSE, /* pc_relative */
5bd4f169
AM		 431 0, /* bitpos */
432 complain_overflow_signed, /* complain_on_overflow */
805fc799 433 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 434 "R_PPC64_GOT16", /* name */
b34976b6 435 FALSE, /* partial_inplace */
5bd4f169
AM		 436 0, /* src_mask */
437 0xffff, /* dst_mask */
b34976b6 438 FALSE), /* pcrel_offset */
5bd4f169
AM		 439
440 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
441 the symbol. */
442 HOWTO (R_PPC64_GOT16_LO, /* type */
443 0, /* rightshift */
444 1, /* size (0 = byte, 1 = short, 2 = long) */
445 16, /* bitsize */
b34976b6 446 FALSE, /* pc_relative */
5bd4f169
AM		 447 0, /* bitpos */
448 complain_overflow_dont, /* complain_on_overflow */
805fc799 449 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 450 "R_PPC64_GOT16_LO", /* name */
b34976b6 451 FALSE, /* partial_inplace */
5bd4f169
AM		 452 0, /* src_mask */
453 0xffff, /* dst_mask */
b34976b6 454 FALSE), /* pcrel_offset */
5bd4f169
AM		 455
456 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
457 the symbol. */
458 HOWTO (R_PPC64_GOT16_HI, /* type */
459 16, /* rightshift */
460 1, /* size (0 = byte, 1 = short, 2 = long) */
461 16, /* bitsize */
b34976b6 462 FALSE, /* pc_relative */
5bd4f169
AM		 463 0, /* bitpos */
464 complain_overflow_dont,/* complain_on_overflow */
805fc799 465 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 466 "R_PPC64_GOT16_HI", /* name */
b34976b6 467 FALSE, /* partial_inplace */
5bd4f169
AM		 468 0, /* src_mask */
469 0xffff, /* dst_mask */
b34976b6 470 FALSE), /* pcrel_offset */
5bd4f169
AM		 471
472 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
473 the symbol. */
474 HOWTO (R_PPC64_GOT16_HA, /* type */
475 16, /* rightshift */
476 1, /* size (0 = byte, 1 = short, 2 = long) */
477 16, /* bitsize */
b34976b6 478 FALSE, /* pc_relative */
5bd4f169
AM		 479 0, /* bitpos */
480 complain_overflow_dont,/* complain_on_overflow */
805fc799 481 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 482 "R_PPC64_GOT16_HA", /* name */
b34976b6 483 FALSE, /* partial_inplace */
5bd4f169
AM		 484 0, /* src_mask */
485 0xffff, /* dst_mask */
b34976b6 486 FALSE), /* pcrel_offset */
5bd4f169
AM		 487
488 /* This is used only by the dynamic linker. The symbol should exist
489 both in the object being run and in some shared library. The
490 dynamic linker copies the data addressed by the symbol from the
491 shared library into the object, because the object being
492 run has to have the data at some particular address. */
493 HOWTO (R_PPC64_COPY, /* type */
494 0, /* rightshift */
f5e87a1d
AM		 495 0, /* this one is variable size */
496 0, /* bitsize */
b34976b6 497 FALSE, /* pc_relative */
5bd4f169 498 0, /* bitpos */
f5e87a1d
AM		 499 complain_overflow_dont, /* complain_on_overflow */
500 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 501 "R_PPC64_COPY", /* name */
b34976b6 502 FALSE, /* partial_inplace */
5bd4f169
AM		 503 0, /* src_mask */
504 0, /* dst_mask */
b34976b6 505 FALSE), /* pcrel_offset */
5bd4f169
AM		 506
507 /* Like R_PPC64_ADDR64, but used when setting global offset table
508 entries. */
509 HOWTO (R_PPC64_GLOB_DAT, /* type */
510 0, /* rightshift */
511 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
512 64, /* bitsize */
b34976b6 513 FALSE, /* pc_relative */
5bd4f169
AM		 514 0, /* bitpos */
515 complain_overflow_dont, /* complain_on_overflow */
805fc799 516 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 517 "R_PPC64_GLOB_DAT", /* name */
b34976b6 518 FALSE, /* partial_inplace */
5bd4f169 519 0, /* src_mask */
f5e87a1d 520 ONES (64), /* dst_mask */
b34976b6 521 FALSE), /* pcrel_offset */
5bd4f169
AM		 522
523 /* Created by the link editor. Marks a procedure linkage table
524 entry for a symbol. */
525 HOWTO (R_PPC64_JMP_SLOT, /* type */
526 0, /* rightshift */
527 0, /* size (0 = byte, 1 = short, 2 = long) */
528 0, /* bitsize */
b34976b6 529 FALSE, /* pc_relative */
5bd4f169
AM		 530 0, /* bitpos */
531 complain_overflow_dont, /* complain_on_overflow */
805fc799 532 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 533 "R_PPC64_JMP_SLOT", /* name */
b34976b6 534 FALSE, /* partial_inplace */
5bd4f169
AM		 535 0, /* src_mask */
536 0, /* dst_mask */
b34976b6 537 FALSE), /* pcrel_offset */
5bd4f169
AM		 538
539 /* Used only by the dynamic linker. When the object is run, this
540 doubleword64 is set to the load address of the object, plus the
541 addend. */
542 HOWTO (R_PPC64_RELATIVE, /* type */
543 0, /* rightshift */
544 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
545 64, /* bitsize */
b34976b6 546 FALSE, /* pc_relative */
5bd4f169
AM		 547 0, /* bitpos */
548 complain_overflow_dont, /* complain_on_overflow */
549 bfd_elf_generic_reloc, /* special_function */
550 "R_PPC64_RELATIVE", /* name */
b34976b6 551 FALSE, /* partial_inplace */
5bd4f169 552 0, /* src_mask */
f5e87a1d 553 ONES (64), /* dst_mask */
b34976b6 554 FALSE), /* pcrel_offset */
5bd4f169
AM		 555
556 /* Like R_PPC64_ADDR32, but may be unaligned. */
557 HOWTO (R_PPC64_UADDR32, /* type */
558 0, /* rightshift */
559 2, /* size (0 = byte, 1 = short, 2 = long) */
560 32, /* bitsize */
b34976b6 561 FALSE, /* pc_relative */
5bd4f169
AM		 562 0, /* bitpos */
563 complain_overflow_bitfield, /* complain_on_overflow */
564 bfd_elf_generic_reloc, /* special_function */
565 "R_PPC64_UADDR32", /* name */
b34976b6 566 FALSE, /* partial_inplace */
5bd4f169
AM		 567 0, /* src_mask */
568 0xffffffff, /* dst_mask */
b34976b6 569 FALSE), /* pcrel_offset */
5bd4f169
AM		 570
571 /* Like R_PPC64_ADDR16, but may be unaligned. */
572 HOWTO (R_PPC64_UADDR16, /* type */
573 0, /* rightshift */
574 1, /* size (0 = byte, 1 = short, 2 = long) */
575 16, /* bitsize */
b34976b6 576 FALSE, /* pc_relative */
5bd4f169
AM		 577 0, /* bitpos */
578 complain_overflow_bitfield, /* complain_on_overflow */
579 bfd_elf_generic_reloc, /* special_function */
580 "R_PPC64_UADDR16", /* name */
b34976b6 581 FALSE, /* partial_inplace */
5bd4f169
AM		 582 0, /* src_mask */
583 0xffff, /* dst_mask */
b34976b6 584 FALSE), /* pcrel_offset */
5bd4f169
AM		 585
586 /* 32-bit PC relative. */
587 HOWTO (R_PPC64_REL32, /* type */
588 0, /* rightshift */
589 2, /* size (0 = byte, 1 = short, 2 = long) */
590 32, /* bitsize */
b34976b6 591 TRUE, /* pc_relative */
5bd4f169 592 0, /* bitpos */
cedb70c5 593 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM		 594 complain_overflow_signed, /* complain_on_overflow */
595 bfd_elf_generic_reloc, /* special_function */
596 "R_PPC64_REL32", /* name */
b34976b6 597 FALSE, /* partial_inplace */
5bd4f169
AM		 598 0, /* src_mask */
599 0xffffffff, /* dst_mask */
b34976b6 600 TRUE), /* pcrel_offset */
5bd4f169 601
10ed1bba 602 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 603 HOWTO (R_PPC64_PLT32, /* type */
604 0, /* rightshift */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
606 32, /* bitsize */
b34976b6 607 FALSE, /* pc_relative */
5bd4f169
AM		 608 0, /* bitpos */
609 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 610 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 611 "R_PPC64_PLT32", /* name */
b34976b6 612 FALSE, /* partial_inplace */
5bd4f169 613 0, /* src_mask */
f5e87a1d 614 0xffffffff, /* dst_mask */
b34976b6 615 FALSE), /* pcrel_offset */
5bd4f169
AM		 616
617 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
618 FIXME: R_PPC64_PLTREL32 not supported. */
619 HOWTO (R_PPC64_PLTREL32, /* type */
620 0, /* rightshift */
621 2, /* size (0 = byte, 1 = short, 2 = long) */
622 32, /* bitsize */
b34976b6 623 TRUE, /* pc_relative */
5bd4f169
AM		 624 0, /* bitpos */
625 complain_overflow_signed, /* complain_on_overflow */
626 bfd_elf_generic_reloc, /* special_function */
627 "R_PPC64_PLTREL32", /* name */
b34976b6 628 FALSE, /* partial_inplace */
5bd4f169 629 0, /* src_mask */
f5e87a1d 630 0xffffffff, /* dst_mask */
b34976b6 631 TRUE), /* pcrel_offset */
5bd4f169
AM		 632
633 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
634 the symbol. */
635 HOWTO (R_PPC64_PLT16_LO, /* type */
636 0, /* rightshift */
637 1, /* size (0 = byte, 1 = short, 2 = long) */
638 16, /* bitsize */
b34976b6 639 FALSE, /* pc_relative */
5bd4f169
AM		 640 0, /* bitpos */
641 complain_overflow_dont, /* complain_on_overflow */
805fc799 642 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 643 "R_PPC64_PLT16_LO", /* name */
b34976b6 644 FALSE, /* partial_inplace */
5bd4f169
AM		 645 0, /* src_mask */
646 0xffff, /* dst_mask */
b34976b6 647 FALSE), /* pcrel_offset */
5bd4f169
AM		 648
649 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
650 the symbol. */
651 HOWTO (R_PPC64_PLT16_HI, /* type */
652 16, /* rightshift */
653 1, /* size (0 = byte, 1 = short, 2 = long) */
654 16, /* bitsize */
b34976b6 655 FALSE, /* pc_relative */
5bd4f169
AM		 656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
805fc799 658 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 659 "R_PPC64_PLT16_HI", /* name */
b34976b6 660 FALSE, /* partial_inplace */
5bd4f169
AM		 661 0, /* src_mask */
662 0xffff, /* dst_mask */
b34976b6 663 FALSE), /* pcrel_offset */
5bd4f169
AM		 664
665 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
666 the symbol. */
667 HOWTO (R_PPC64_PLT16_HA, /* type */
668 16, /* rightshift */
669 1, /* size (0 = byte, 1 = short, 2 = long) */
670 16, /* bitsize */
b34976b6 671 FALSE, /* pc_relative */
5bd4f169
AM		 672 0, /* bitpos */
673 complain_overflow_dont, /* complain_on_overflow */
805fc799 674 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 675 "R_PPC64_PLT16_HA", /* name */
b34976b6 676 FALSE, /* partial_inplace */
5bd4f169
AM		 677 0, /* src_mask */
678 0xffff, /* dst_mask */
b34976b6 679 FALSE), /* pcrel_offset */
5bd4f169 680
c061c2d8 681 /* 16-bit section relative relocation. */
5bd4f169
AM		 682 HOWTO (R_PPC64_SECTOFF, /* type */
683 0, /* rightshift */
c061c2d8
AM		 684 1, /* size (0 = byte, 1 = short, 2 = long) */
685 16, /* bitsize */
b34976b6 686 FALSE, /* pc_relative */
5bd4f169
AM		 687 0, /* bitpos */
688 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 689 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 690 "R_PPC64_SECTOFF", /* name */
b34976b6 691 FALSE, /* partial_inplace */
5bd4f169 692 0, /* src_mask */
c061c2d8 693 0xffff, /* dst_mask */
b34976b6 694 FALSE), /* pcrel_offset */
5bd4f169 695
c061c2d8 696 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 697 HOWTO (R_PPC64_SECTOFF_LO, /* type */
698 0, /* rightshift */
699 1, /* size (0 = byte, 1 = short, 2 = long) */
700 16, /* bitsize */
b34976b6 701 FALSE, /* pc_relative */
5bd4f169
AM		 702 0, /* bitpos */
703 complain_overflow_dont, /* complain_on_overflow */
805fc799 704 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 705 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 706 FALSE, /* partial_inplace */
5bd4f169
AM		 707 0, /* src_mask */
708 0xffff, /* dst_mask */
b34976b6 709 FALSE), /* pcrel_offset */
5bd4f169
AM		 710
711 /* 16-bit upper half section relative relocation. */
712 HOWTO (R_PPC64_SECTOFF_HI, /* type */
713 16, /* rightshift */
714 1, /* size (0 = byte, 1 = short, 2 = long) */
715 16, /* bitsize */
b34976b6 716 FALSE, /* pc_relative */
5bd4f169
AM		 717 0, /* bitpos */
718 complain_overflow_dont, /* complain_on_overflow */
805fc799 719 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 720 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 721 FALSE, /* partial_inplace */
5bd4f169
AM		 722 0, /* src_mask */
723 0xffff, /* dst_mask */
b34976b6 724 FALSE), /* pcrel_offset */
5bd4f169
AM		 725
726 /* 16-bit upper half adjusted section relative relocation. */
727 HOWTO (R_PPC64_SECTOFF_HA, /* type */
728 16, /* rightshift */
729 1, /* size (0 = byte, 1 = short, 2 = long) */
730 16, /* bitsize */
b34976b6 731 FALSE, /* pc_relative */
5bd4f169
AM		 732 0, /* bitpos */
733 complain_overflow_dont, /* complain_on_overflow */
805fc799 734 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 735 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 736 FALSE, /* partial_inplace */
5bd4f169
AM		 737 0, /* src_mask */
738 0xffff, /* dst_mask */
b34976b6 739 FALSE), /* pcrel_offset */
5bd4f169 740
04c9666a
AM		 741 /* Like R_PPC64_REL24 without touching the two least significant bits. */
742 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 743 2, /* rightshift */
744 2, /* size (0 = byte, 1 = short, 2 = long) */
745 30, /* bitsize */
b34976b6 746 TRUE, /* pc_relative */
5bd4f169
AM		 747 0, /* bitpos */
748 complain_overflow_dont, /* complain_on_overflow */
749 bfd_elf_generic_reloc, /* special_function */
04c9666a 750 "R_PPC64_REL30", /* name */
b34976b6 751 FALSE, /* partial_inplace */
d006db6c 752 0, /* src_mask */
5bd4f169 753 0xfffffffc, /* dst_mask */
b34976b6 754 TRUE), /* pcrel_offset */
5bd4f169
AM		 755
756 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
757
758 /* A standard 64-bit relocation. */
759 HOWTO (R_PPC64_ADDR64, /* type */
760 0, /* rightshift */
761 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
762 64, /* bitsize */
b34976b6 763 FALSE, /* pc_relative */
5bd4f169
AM		 764 0, /* bitpos */
765 complain_overflow_dont, /* complain_on_overflow */
766 bfd_elf_generic_reloc, /* special_function */
767 "R_PPC64_ADDR64", /* name */
b34976b6 768 FALSE, /* partial_inplace */
5bd4f169 769 0, /* src_mask */
f5e87a1d 770 ONES (64), /* dst_mask */
b34976b6 771 FALSE), /* pcrel_offset */
5bd4f169
AM		 772
773 /* The bits 32-47 of an address. */
774 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
775 32, /* rightshift */
776 1, /* size (0 = byte, 1 = short, 2 = long) */
777 16, /* bitsize */
b34976b6 778 FALSE, /* pc_relative */
5bd4f169
AM		 779 0, /* bitpos */
780 complain_overflow_dont, /* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 783 FALSE, /* partial_inplace */
5bd4f169
AM		 784 0, /* src_mask */
785 0xffff, /* dst_mask */
b34976b6 786 FALSE), /* pcrel_offset */
5bd4f169
AM		 787
788 /* The bits 32-47 of an address, plus 1 if the contents of the low
789 16 bits, treated as a signed number, is negative. */
790 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
791 32, /* rightshift */
792 1, /* size (0 = byte, 1 = short, 2 = long) */
793 16, /* bitsize */
b34976b6 794 FALSE, /* pc_relative */
5bd4f169
AM		 795 0, /* bitpos */
796 complain_overflow_dont, /* complain_on_overflow */
805fc799 797 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 798 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 799 FALSE, /* partial_inplace */
5bd4f169
AM		 800 0, /* src_mask */
801 0xffff, /* dst_mask */
b34976b6 802 FALSE), /* pcrel_offset */
5bd4f169
AM		 803
804 /* The bits 48-63 of an address. */
805 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
806 48, /* rightshift */
807 1, /* size (0 = byte, 1 = short, 2 = long) */
808 16, /* bitsize */
b34976b6 809 FALSE, /* pc_relative */
5bd4f169
AM		 810 0, /* bitpos */
811 complain_overflow_dont, /* complain_on_overflow */
812 bfd_elf_generic_reloc, /* special_function */
813 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 814 FALSE, /* partial_inplace */
5bd4f169
AM		 815 0, /* src_mask */
816 0xffff, /* dst_mask */
b34976b6 817 FALSE), /* pcrel_offset */
5bd4f169
AM		 818
819 /* The bits 48-63 of an address, plus 1 if the contents of the low
820 16 bits, treated as a signed number, is negative. */
821 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
822 48, /* rightshift */
823 1, /* size (0 = byte, 1 = short, 2 = long) */
824 16, /* bitsize */
b34976b6 825 FALSE, /* pc_relative */
5bd4f169
AM		 826 0, /* bitpos */
827 complain_overflow_dont, /* complain_on_overflow */
805fc799 828 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 829 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 830 FALSE, /* partial_inplace */
5bd4f169
AM		 831 0, /* src_mask */
832 0xffff, /* dst_mask */
b34976b6 833 FALSE), /* pcrel_offset */
5bd4f169
AM		 834
835 /* Like ADDR64, but may be unaligned. */
836 HOWTO (R_PPC64_UADDR64, /* type */
837 0, /* rightshift */
838 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
839 64, /* bitsize */
b34976b6 840 FALSE, /* pc_relative */
5bd4f169
AM		 841 0, /* bitpos */
842 complain_overflow_dont, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_PPC64_UADDR64", /* name */
b34976b6 845 FALSE, /* partial_inplace */
5bd4f169 846 0, /* src_mask */
f5e87a1d 847 ONES (64), /* dst_mask */
b34976b6 848 FALSE), /* pcrel_offset */
5bd4f169
AM		 849
850 /* 64-bit relative relocation. */
851 HOWTO (R_PPC64_REL64, /* type */
852 0, /* rightshift */
853 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
854 64, /* bitsize */
b34976b6 855 TRUE, /* pc_relative */
5bd4f169
AM		 856 0, /* bitpos */
857 complain_overflow_dont, /* complain_on_overflow */
858 bfd_elf_generic_reloc, /* special_function */
859 "R_PPC64_REL64", /* name */
b34976b6 860 FALSE, /* partial_inplace */
5bd4f169 861 0, /* src_mask */
f5e87a1d 862 ONES (64), /* dst_mask */
b34976b6 863 TRUE), /* pcrel_offset */
5bd4f169 864
cedb70c5 865 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 866 HOWTO (R_PPC64_PLT64, /* type */
867 0, /* rightshift */
868 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
869 64, /* bitsize */
b34976b6 870 FALSE, /* pc_relative */
5bd4f169
AM		 871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
805fc799 873 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 874 "R_PPC64_PLT64", /* name */
b34976b6 875 FALSE, /* partial_inplace */
5bd4f169 876 0, /* src_mask */
f5e87a1d 877 ONES (64), /* dst_mask */
b34976b6 878 FALSE), /* pcrel_offset */
5bd4f169
AM		 879
880 /* 64-bit PC relative relocation to the symbol's procedure linkage
881 table. */
882 /* FIXME: R_PPC64_PLTREL64 not supported. */
883 HOWTO (R_PPC64_PLTREL64, /* type */
884 0, /* rightshift */
885 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
886 64, /* bitsize */
b34976b6 887 TRUE, /* pc_relative */
5bd4f169
AM		 888 0, /* bitpos */
889 complain_overflow_dont, /* complain_on_overflow */
805fc799 890 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 891 "R_PPC64_PLTREL64", /* name */
b34976b6 892 FALSE, /* partial_inplace */
5bd4f169 893 0, /* src_mask */
f5e87a1d 894 ONES (64), /* dst_mask */
b34976b6 895 TRUE), /* pcrel_offset */
5bd4f169
AM		 896
897 /* 16 bit TOC-relative relocation. */
898
899 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
900 HOWTO (R_PPC64_TOC16, /* type */
901 0, /* rightshift */
902 1, /* size (0 = byte, 1 = short, 2 = long) */
903 16, /* bitsize */
b34976b6 904 FALSE, /* pc_relative */
5bd4f169
AM		 905 0, /* bitpos */
906 complain_overflow_signed, /* complain_on_overflow */
805fc799 907 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 908 "R_PPC64_TOC16", /* name */
b34976b6 909 FALSE, /* partial_inplace */
5bd4f169
AM		 910 0, /* src_mask */
911 0xffff, /* dst_mask */
b34976b6 912 FALSE), /* pcrel_offset */
5bd4f169
AM		 913
914 /* 16 bit TOC-relative relocation without overflow. */
915
916 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
917 HOWTO (R_PPC64_TOC16_LO, /* type */
918 0, /* rightshift */
919 1, /* size (0 = byte, 1 = short, 2 = long) */
920 16, /* bitsize */
b34976b6 921 FALSE, /* pc_relative */
5bd4f169
AM		 922 0, /* bitpos */
923 complain_overflow_dont, /* complain_on_overflow */
805fc799 924 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 925 "R_PPC64_TOC16_LO", /* name */
b34976b6 926 FALSE, /* partial_inplace */
5bd4f169
AM		 927 0, /* src_mask */
928 0xffff, /* dst_mask */
b34976b6 929 FALSE), /* pcrel_offset */
5bd4f169
AM		 930
931 /* 16 bit TOC-relative relocation, high 16 bits. */
932
933 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
934 HOWTO (R_PPC64_TOC16_HI, /* type */
935 16, /* rightshift */
936 1, /* size (0 = byte, 1 = short, 2 = long) */
937 16, /* bitsize */
b34976b6 938 FALSE, /* pc_relative */
5bd4f169
AM		 939 0, /* bitpos */
940 complain_overflow_dont, /* complain_on_overflow */
805fc799 941 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 942 "R_PPC64_TOC16_HI", /* name */
b34976b6 943 FALSE, /* partial_inplace */
5bd4f169
AM		 944 0, /* src_mask */
945 0xffff, /* dst_mask */
b34976b6 946 FALSE), /* pcrel_offset */
5bd4f169
AM		 947
948 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
949 contents of the low 16 bits, treated as a signed number, is
950 negative. */
951
952 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
953 HOWTO (R_PPC64_TOC16_HA, /* type */
954 16, /* rightshift */
955 1, /* size (0 = byte, 1 = short, 2 = long) */
956 16, /* bitsize */
b34976b6 957 FALSE, /* pc_relative */
5bd4f169
AM		 958 0, /* bitpos */
959 complain_overflow_dont, /* complain_on_overflow */
805fc799 960 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 961 "R_PPC64_TOC16_HA", /* name */
b34976b6 962 FALSE, /* partial_inplace */
5bd4f169
AM		 963 0, /* src_mask */
964 0xffff, /* dst_mask */
b34976b6 965 FALSE), /* pcrel_offset */
5bd4f169
AM		 966
967 /* 64-bit relocation; insert value of TOC base (.TOC.). */
968
969 /* R_PPC64_TOC 51 doubleword64 .TOC. */
970 HOWTO (R_PPC64_TOC, /* type */
971 0, /* rightshift */
972 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
973 64, /* bitsize */
b34976b6 974 FALSE, /* pc_relative */
5bd4f169
AM		 975 0, /* bitpos */
976 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 977 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 978 "R_PPC64_TOC", /* name */
b34976b6 979 FALSE, /* partial_inplace */
5bd4f169 980 0, /* src_mask */
f5e87a1d 981 ONES (64), /* dst_mask */
b34976b6 982 FALSE), /* pcrel_offset */
5bd4f169
AM		 983
984 /* Like R_PPC64_GOT16, but also informs the link editor that the
985 value to relocate may (!) refer to a PLT entry which the link
986 editor (a) may replace with the symbol value. If the link editor
987 is unable to fully resolve the symbol, it may (b) create a PLT
988 entry and store the address to the new PLT entry in the GOT.
989 This permits lazy resolution of function symbols at run time.
990 The link editor may also skip all of this and just (c) emit a
991 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
992 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
993 HOWTO (R_PPC64_PLTGOT16, /* type */
994 0, /* rightshift */
995 1, /* size (0 = byte, 1 = short, 2 = long) */
996 16, /* bitsize */
b34976b6 997 FALSE, /* pc_relative */
5bd4f169
AM		 998 0, /* bitpos */
999 complain_overflow_signed, /* complain_on_overflow */
805fc799 1000 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 1001 "R_PPC64_PLTGOT16", /* name */
1002 FALSE, /* partial_inplace */
1003 0, /* src_mask */
1004 0xffff, /* dst_mask */
1005 FALSE), /* pcrel_offset */
1006
1007 /* Like R_PPC64_PLTGOT16, but without overflow. */
1008 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1009 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1010 0, /* rightshift */
1011 1, /* size (0 = byte, 1 = short, 2 = long) */
1012 16, /* bitsize */
1013 FALSE, /* pc_relative */
1014 0, /* bitpos */
1015 complain_overflow_dont, /* complain_on_overflow */
1016 ppc64_elf_unhandled_reloc, /* special_function */
1017 "R_PPC64_PLTGOT16_LO", /* name */
1018 FALSE, /* partial_inplace */
1019 0, /* src_mask */
1020 0xffff, /* dst_mask */
1021 FALSE), /* pcrel_offset */
1022
1023 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1024 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1025 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1026 16, /* rightshift */
1027 1, /* size (0 = byte, 1 = short, 2 = long) */
1028 16, /* bitsize */
1029 FALSE, /* pc_relative */
1030 0, /* bitpos */
1031 complain_overflow_dont, /* complain_on_overflow */
1032 ppc64_elf_unhandled_reloc, /* special_function */
1033 "R_PPC64_PLTGOT16_HI", /* name */
1034 FALSE, /* partial_inplace */
1035 0, /* src_mask */
1036 0xffff, /* dst_mask */
1037 FALSE), /* pcrel_offset */
1038
1039 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1040 1 if the contents of the low 16 bits, treated as a signed number,
1041 is negative. */
1042 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1043 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1044 16, /* rightshift */
1045 1, /* size (0 = byte, 1 = short, 2 = long) */
1046 16, /* bitsize */
1047 FALSE, /* pc_relative */
1048 0, /* bitpos */
1049 complain_overflow_dont,/* complain_on_overflow */
1050 ppc64_elf_unhandled_reloc, /* special_function */
1051 "R_PPC64_PLTGOT16_HA", /* name */
1052 FALSE, /* partial_inplace */
1053 0, /* src_mask */
1054 0xffff, /* dst_mask */
1055 FALSE), /* pcrel_offset */
1056
1057 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1058 HOWTO (R_PPC64_ADDR16_DS, /* type */
1059 0, /* rightshift */
1060 1, /* size (0 = byte, 1 = short, 2 = long) */
1061 16, /* bitsize */
1062 FALSE, /* pc_relative */
1063 0, /* bitpos */
1064 complain_overflow_bitfield, /* complain_on_overflow */
1065 bfd_elf_generic_reloc, /* special_function */
1066 "R_PPC64_ADDR16_DS", /* name */
1067 FALSE, /* partial_inplace */
1068 0, /* src_mask */
1069 0xfffc, /* dst_mask */
1070 FALSE), /* pcrel_offset */
1071
1072 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1073 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1074 0, /* rightshift */
1075 1, /* size (0 = byte, 1 = short, 2 = long) */
1076 16, /* bitsize */
1077 FALSE, /* pc_relative */
1078 0, /* bitpos */
1079 complain_overflow_dont,/* complain_on_overflow */
1080 bfd_elf_generic_reloc, /* special_function */
1081 "R_PPC64_ADDR16_LO_DS",/* name */
1082 FALSE, /* partial_inplace */
1083 0, /* src_mask */
1084 0xfffc, /* dst_mask */
1085 FALSE), /* pcrel_offset */
1086
1087 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1088 HOWTO (R_PPC64_GOT16_DS, /* type */
1089 0, /* rightshift */
1090 1, /* size (0 = byte, 1 = short, 2 = long) */
1091 16, /* bitsize */
1092 FALSE, /* pc_relative */
1093 0, /* bitpos */
1094 complain_overflow_signed, /* complain_on_overflow */
1095 ppc64_elf_unhandled_reloc, /* special_function */
1096 "R_PPC64_GOT16_DS", /* name */
1097 FALSE, /* partial_inplace */
1098 0, /* src_mask */
1099 0xfffc, /* dst_mask */
1100 FALSE), /* pcrel_offset */
1101
1102 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1103 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1104 0, /* rightshift */
1105 1, /* size (0 = byte, 1 = short, 2 = long) */
1106 16, /* bitsize */
1107 FALSE, /* pc_relative */
1108 0, /* bitpos */
1109 complain_overflow_dont, /* complain_on_overflow */
1110 ppc64_elf_unhandled_reloc, /* special_function */
1111 "R_PPC64_GOT16_LO_DS", /* name */
1112 FALSE, /* partial_inplace */
1113 0, /* src_mask */
1114 0xfffc, /* dst_mask */
1115 FALSE), /* pcrel_offset */
1116
1117 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1118 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1119 0, /* rightshift */
1120 1, /* size (0 = byte, 1 = short, 2 = long) */
1121 16, /* bitsize */
1122 FALSE, /* pc_relative */
1123 0, /* bitpos */
1124 complain_overflow_dont, /* complain_on_overflow */
1125 ppc64_elf_unhandled_reloc, /* special_function */
1126 "R_PPC64_PLT16_LO_DS", /* name */
1127 FALSE, /* partial_inplace */
1128 0, /* src_mask */
1129 0xfffc, /* dst_mask */
1130 FALSE), /* pcrel_offset */
1131
1132 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1133 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1134 0, /* rightshift */
1135 1, /* size (0 = byte, 1 = short, 2 = long) */
1136 16, /* bitsize */
1137 FALSE, /* pc_relative */
1138 0, /* bitpos */
1139 complain_overflow_bitfield, /* complain_on_overflow */
1140 ppc64_elf_sectoff_reloc, /* special_function */
1141 "R_PPC64_SECTOFF_DS", /* name */
1142 FALSE, /* partial_inplace */
1143 0, /* src_mask */
1144 0xfffc, /* dst_mask */
1145 FALSE), /* pcrel_offset */
1146
1147 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1148 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1149 0, /* rightshift */
1150 1, /* size (0 = byte, 1 = short, 2 = long) */
1151 16, /* bitsize */
1152 FALSE, /* pc_relative */
1153 0, /* bitpos */
1154 complain_overflow_dont, /* complain_on_overflow */
1155 ppc64_elf_sectoff_reloc, /* special_function */
1156 "R_PPC64_SECTOFF_LO_DS",/* name */
1157 FALSE, /* partial_inplace */
1158 0, /* src_mask */
1159 0xfffc, /* dst_mask */
1160 FALSE), /* pcrel_offset */
1161
1162 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1163 HOWTO (R_PPC64_TOC16_DS, /* type */
1164 0, /* rightshift */
1165 1, /* size (0 = byte, 1 = short, 2 = long) */
1166 16, /* bitsize */
1167 FALSE, /* pc_relative */
1168 0, /* bitpos */
1169 complain_overflow_signed, /* complain_on_overflow */
1170 ppc64_elf_toc_reloc, /* special_function */
1171 "R_PPC64_TOC16_DS", /* name */
1172 FALSE, /* partial_inplace */
1173 0, /* src_mask */
1174 0xfffc, /* dst_mask */
1175 FALSE), /* pcrel_offset */
1176
1177 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1178 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1179 0, /* rightshift */
1180 1, /* size (0 = byte, 1 = short, 2 = long) */
1181 16, /* bitsize */
1182 FALSE, /* pc_relative */
1183 0, /* bitpos */
1184 complain_overflow_dont, /* complain_on_overflow */
1185 ppc64_elf_toc_reloc, /* special_function */
1186 "R_PPC64_TOC16_LO_DS", /* name */
1187 FALSE, /* partial_inplace */
1188 0, /* src_mask */
1189 0xfffc, /* dst_mask */
1190 FALSE), /* pcrel_offset */
1191
1192 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1193 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1194 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1195 0, /* rightshift */
1196 1, /* size (0 = byte, 1 = short, 2 = long) */
1197 16, /* bitsize */
1198 FALSE, /* pc_relative */
1199 0, /* bitpos */
1200 complain_overflow_signed, /* complain_on_overflow */
1201 ppc64_elf_unhandled_reloc, /* special_function */
1202 "R_PPC64_PLTGOT16_DS", /* name */
1203 FALSE, /* partial_inplace */
1204 0, /* src_mask */
1205 0xfffc, /* dst_mask */
1206 FALSE), /* pcrel_offset */
1207
1208 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1209 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1210 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1211 0, /* rightshift */
1212 1, /* size (0 = byte, 1 = short, 2 = long) */
1213 16, /* bitsize */
1214 FALSE, /* pc_relative */
1215 0, /* bitpos */
1216 complain_overflow_dont, /* complain_on_overflow */
1217 ppc64_elf_unhandled_reloc, /* special_function */
1218 "R_PPC64_PLTGOT16_LO_DS",/* name */
1219 FALSE, /* partial_inplace */
1220 0, /* src_mask */
1221 0xfffc, /* dst_mask */
1222 FALSE), /* pcrel_offset */
1223
1224 /* Marker reloc for TLS. */
1225 HOWTO (R_PPC64_TLS,
1226 0, /* rightshift */
1227 2, /* size (0 = byte, 1 = short, 2 = long) */
1228 32, /* bitsize */
1229 FALSE, /* pc_relative */
1230 0, /* bitpos */
1231 complain_overflow_dont, /* complain_on_overflow */
1232 bfd_elf_generic_reloc, /* special_function */
1233 "R_PPC64_TLS", /* name */
1234 FALSE, /* partial_inplace */
1235 0, /* src_mask */
1236 0, /* dst_mask */
1237 FALSE), /* pcrel_offset */
1238
1239 /* Computes the load module index of the load module that contains the
1240 definition of its TLS sym. */
1241 HOWTO (R_PPC64_DTPMOD64,
1242 0, /* rightshift */
1243 4, /* size (0 = byte, 1 = short, 2 = long) */
1244 64, /* bitsize */
1245 FALSE, /* pc_relative */
1246 0, /* bitpos */
1247 complain_overflow_dont, /* complain_on_overflow */
1248 ppc64_elf_unhandled_reloc, /* special_function */
1249 "R_PPC64_DTPMOD64", /* name */
1250 FALSE, /* partial_inplace */
1251 0, /* src_mask */
1252 ONES (64), /* dst_mask */
1253 FALSE), /* pcrel_offset */
1254
1255 /* Computes a dtv-relative displacement, the difference between the value
1256 of sym+add and the base address of the thread-local storage block that
1257 contains the definition of sym, minus 0x8000. */
1258 HOWTO (R_PPC64_DTPREL64,
1259 0, /* rightshift */
1260 4, /* size (0 = byte, 1 = short, 2 = long) */
1261 64, /* bitsize */
1262 FALSE, /* pc_relative */
1263 0, /* bitpos */
1264 complain_overflow_dont, /* complain_on_overflow */
1265 ppc64_elf_unhandled_reloc, /* special_function */
1266 "R_PPC64_DTPREL64", /* name */
1267 FALSE, /* partial_inplace */
1268 0, /* src_mask */
1269 ONES (64), /* dst_mask */
1270 FALSE), /* pcrel_offset */
1271
1272 /* A 16 bit dtprel reloc. */
1273 HOWTO (R_PPC64_DTPREL16,
1274 0, /* rightshift */
1275 1, /* size (0 = byte, 1 = short, 2 = long) */
1276 16, /* bitsize */
1277 FALSE, /* pc_relative */
1278 0, /* bitpos */
1279 complain_overflow_signed, /* complain_on_overflow */
1280 ppc64_elf_unhandled_reloc, /* special_function */
1281 "R_PPC64_DTPREL16", /* name */
1282 FALSE, /* partial_inplace */
1283 0, /* src_mask */
1284 0xffff, /* dst_mask */
1285 FALSE), /* pcrel_offset */
1286
1287 /* Like DTPREL16, but no overflow. */
1288 HOWTO (R_PPC64_DTPREL16_LO,
1289 0, /* rightshift */
1290 1, /* size (0 = byte, 1 = short, 2 = long) */
1291 16, /* bitsize */
1292 FALSE, /* pc_relative */
1293 0, /* bitpos */
1294 complain_overflow_dont, /* complain_on_overflow */
1295 ppc64_elf_unhandled_reloc, /* special_function */
1296 "R_PPC64_DTPREL16_LO", /* name */
1297 FALSE, /* partial_inplace */
1298 0, /* src_mask */
1299 0xffff, /* dst_mask */
1300 FALSE), /* pcrel_offset */
1301
1302 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1303 HOWTO (R_PPC64_DTPREL16_HI,
1304 16, /* rightshift */
1305 1, /* size (0 = byte, 1 = short, 2 = long) */
1306 16, /* bitsize */
1307 FALSE, /* pc_relative */
1308 0, /* bitpos */
1309 complain_overflow_dont, /* complain_on_overflow */
1310 ppc64_elf_unhandled_reloc, /* special_function */
1311 "R_PPC64_DTPREL16_HI", /* name */
1312 FALSE, /* partial_inplace */
1313 0, /* src_mask */
1314 0xffff, /* dst_mask */
1315 FALSE), /* pcrel_offset */
1316
1317 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1318 HOWTO (R_PPC64_DTPREL16_HA,
1319 16, /* rightshift */
1320 1, /* size (0 = byte, 1 = short, 2 = long) */
1321 16, /* bitsize */
1322 FALSE, /* pc_relative */
1323 0, /* bitpos */
1324 complain_overflow_dont, /* complain_on_overflow */
1325 ppc64_elf_unhandled_reloc, /* special_function */
1326 "R_PPC64_DTPREL16_HA", /* name */
1327 FALSE, /* partial_inplace */
1328 0, /* src_mask */
1329 0xffff, /* dst_mask */
1330 FALSE), /* pcrel_offset */
1331
1332 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1333 HOWTO (R_PPC64_DTPREL16_HIGHER,
1334 32, /* rightshift */
1335 1, /* size (0 = byte, 1 = short, 2 = long) */
1336 16, /* bitsize */
1337 FALSE, /* pc_relative */
1338 0, /* bitpos */
1339 complain_overflow_dont, /* complain_on_overflow */
1340 ppc64_elf_unhandled_reloc, /* special_function */
1341 "R_PPC64_DTPREL16_HIGHER", /* name */
1342 FALSE, /* partial_inplace */
1343 0, /* src_mask */
1344 0xffff, /* dst_mask */
1345 FALSE), /* pcrel_offset */
1346
1347 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1348 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1349 32, /* rightshift */
1350 1, /* size (0 = byte, 1 = short, 2 = long) */
1351 16, /* bitsize */
1352 FALSE, /* pc_relative */
1353 0, /* bitpos */
1354 complain_overflow_dont, /* complain_on_overflow */
1355 ppc64_elf_unhandled_reloc, /* special_function */
1356 "R_PPC64_DTPREL16_HIGHERA", /* name */
1357 FALSE, /* partial_inplace */
1358 0, /* src_mask */
1359 0xffff, /* dst_mask */
1360 FALSE), /* pcrel_offset */
1361
1362 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1363 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1364 48, /* rightshift */
1365 1, /* size (0 = byte, 1 = short, 2 = long) */
1366 16, /* bitsize */
1367 FALSE, /* pc_relative */
1368 0, /* bitpos */
1369 complain_overflow_dont, /* complain_on_overflow */
1370 ppc64_elf_unhandled_reloc, /* special_function */
1371 "R_PPC64_DTPREL16_HIGHEST", /* name */
1372 FALSE, /* partial_inplace */
1373 0, /* src_mask */
1374 0xffff, /* dst_mask */
1375 FALSE), /* pcrel_offset */
1376
1377 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1378 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1379 48, /* rightshift */
1380 1, /* size (0 = byte, 1 = short, 2 = long) */
1381 16, /* bitsize */
1382 FALSE, /* pc_relative */
1383 0, /* bitpos */
1384 complain_overflow_dont, /* complain_on_overflow */
1385 ppc64_elf_unhandled_reloc, /* special_function */
1386 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1387 FALSE, /* partial_inplace */
1388 0, /* src_mask */
1389 0xffff, /* dst_mask */
1390 FALSE), /* pcrel_offset */
1391
1392 /* Like DTPREL16, but for insns with a DS field. */
1393 HOWTO (R_PPC64_DTPREL16_DS,
1394 0, /* rightshift */
1395 1, /* size (0 = byte, 1 = short, 2 = long) */
1396 16, /* bitsize */
1397 FALSE, /* pc_relative */
1398 0, /* bitpos */
1399 complain_overflow_signed, /* complain_on_overflow */
1400 ppc64_elf_unhandled_reloc, /* special_function */
1401 "R_PPC64_DTPREL16_DS", /* name */
1402 FALSE, /* partial_inplace */
1403 0, /* src_mask */
1404 0xfffc, /* dst_mask */
1405 FALSE), /* pcrel_offset */
1406
1407 /* Like DTPREL16_DS, but no overflow. */
1408 HOWTO (R_PPC64_DTPREL16_LO_DS,
1409 0, /* rightshift */
1410 1, /* size (0 = byte, 1 = short, 2 = long) */
1411 16, /* bitsize */
1412 FALSE, /* pc_relative */
1413 0, /* bitpos */
1414 complain_overflow_dont, /* complain_on_overflow */
1415 ppc64_elf_unhandled_reloc, /* special_function */
1416 "R_PPC64_DTPREL16_LO_DS", /* name */
1417 FALSE, /* partial_inplace */
1418 0, /* src_mask */
1419 0xfffc, /* dst_mask */
1420 FALSE), /* pcrel_offset */
1421
1422 /* Computes a tp-relative displacement, the difference between the value of
1423 sym+add and the value of the thread pointer (r13). */
1424 HOWTO (R_PPC64_TPREL64,
1425 0, /* rightshift */
1426 4, /* size (0 = byte, 1 = short, 2 = long) */
1427 64, /* bitsize */
1428 FALSE, /* pc_relative */
1429 0, /* bitpos */
1430 complain_overflow_dont, /* complain_on_overflow */
1431 ppc64_elf_unhandled_reloc, /* special_function */
1432 "R_PPC64_TPREL64", /* name */
1433 FALSE, /* partial_inplace */
1434 0, /* src_mask */
1435 ONES (64), /* dst_mask */
1436 FALSE), /* pcrel_offset */
1437
1438 /* A 16 bit tprel reloc. */
1439 HOWTO (R_PPC64_TPREL16,
1440 0, /* rightshift */
1441 1, /* size (0 = byte, 1 = short, 2 = long) */
1442 16, /* bitsize */
1443 FALSE, /* pc_relative */
1444 0, /* bitpos */
1445 complain_overflow_signed, /* complain_on_overflow */
1446 ppc64_elf_unhandled_reloc, /* special_function */
1447 "R_PPC64_TPREL16", /* name */
1448 FALSE, /* partial_inplace */
1449 0, /* src_mask */
1450 0xffff, /* dst_mask */
1451 FALSE), /* pcrel_offset */
1452
1453 /* Like TPREL16, but no overflow. */
1454 HOWTO (R_PPC64_TPREL16_LO,
1455 0, /* rightshift */
1456 1, /* size (0 = byte, 1 = short, 2 = long) */
1457 16, /* bitsize */
1458 FALSE, /* pc_relative */
1459 0, /* bitpos */
1460 complain_overflow_dont, /* complain_on_overflow */
1461 ppc64_elf_unhandled_reloc, /* special_function */
1462 "R_PPC64_TPREL16_LO", /* name */
1463 FALSE, /* partial_inplace */
1464 0, /* src_mask */
1465 0xffff, /* dst_mask */
1466 FALSE), /* pcrel_offset */
1467
1468 /* Like TPREL16_LO, but next higher group of 16 bits. */
1469 HOWTO (R_PPC64_TPREL16_HI,
1470 16, /* rightshift */
1471 1, /* size (0 = byte, 1 = short, 2 = long) */
1472 16, /* bitsize */
1473 FALSE, /* pc_relative */
1474 0, /* bitpos */
1475 complain_overflow_dont, /* complain_on_overflow */
1476 ppc64_elf_unhandled_reloc, /* special_function */
1477 "R_PPC64_TPREL16_HI", /* name */
1478 FALSE, /* partial_inplace */
1479 0, /* src_mask */
1480 0xffff, /* dst_mask */
1481 FALSE), /* pcrel_offset */
1482
1483 /* Like TPREL16_HI, but adjust for low 16 bits. */
1484 HOWTO (R_PPC64_TPREL16_HA,
1485 16, /* rightshift */
1486 1, /* size (0 = byte, 1 = short, 2 = long) */
1487 16, /* bitsize */
1488 FALSE, /* pc_relative */
1489 0, /* bitpos */
1490 complain_overflow_dont, /* complain_on_overflow */
1491 ppc64_elf_unhandled_reloc, /* special_function */
1492 "R_PPC64_TPREL16_HA", /* name */
1493 FALSE, /* partial_inplace */
1494 0, /* src_mask */
1495 0xffff, /* dst_mask */
1496 FALSE), /* pcrel_offset */
1497
1498 /* Like TPREL16_HI, but next higher group of 16 bits. */
1499 HOWTO (R_PPC64_TPREL16_HIGHER,
1500 32, /* rightshift */
1501 1, /* size (0 = byte, 1 = short, 2 = long) */
1502 16, /* bitsize */
1503 FALSE, /* pc_relative */
1504 0, /* bitpos */
1505 complain_overflow_dont, /* complain_on_overflow */
1506 ppc64_elf_unhandled_reloc, /* special_function */
1507 "R_PPC64_TPREL16_HIGHER", /* name */
1508 FALSE, /* partial_inplace */
1509 0, /* src_mask */
1510 0xffff, /* dst_mask */
1511 FALSE), /* pcrel_offset */
1512
1513 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1514 HOWTO (R_PPC64_TPREL16_HIGHERA,
1515 32, /* rightshift */
1516 1, /* size (0 = byte, 1 = short, 2 = long) */
1517 16, /* bitsize */
1518 FALSE, /* pc_relative */
1519 0, /* bitpos */
1520 complain_overflow_dont, /* complain_on_overflow */
1521 ppc64_elf_unhandled_reloc, /* special_function */
1522 "R_PPC64_TPREL16_HIGHERA", /* name */
1523 FALSE, /* partial_inplace */
1524 0, /* src_mask */
1525 0xffff, /* dst_mask */
1526 FALSE), /* pcrel_offset */
1527
1528 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1529 HOWTO (R_PPC64_TPREL16_HIGHEST,
1530 48, /* rightshift */
1531 1, /* size (0 = byte, 1 = short, 2 = long) */
1532 16, /* bitsize */
1533 FALSE, /* pc_relative */
1534 0, /* bitpos */
1535 complain_overflow_dont, /* complain_on_overflow */
1536 ppc64_elf_unhandled_reloc, /* special_function */
1537 "R_PPC64_TPREL16_HIGHEST", /* name */
1538 FALSE, /* partial_inplace */
1539 0, /* src_mask */
1540 0xffff, /* dst_mask */
1541 FALSE), /* pcrel_offset */
1542
1543 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1544 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1545 48, /* rightshift */
1546 1, /* size (0 = byte, 1 = short, 2 = long) */
1547 16, /* bitsize */
1548 FALSE, /* pc_relative */
1549 0, /* bitpos */
1550 complain_overflow_dont, /* complain_on_overflow */
1551 ppc64_elf_unhandled_reloc, /* special_function */
1552 "R_PPC64_TPREL16_HIGHESTA", /* name */
1553 FALSE, /* partial_inplace */
1554 0, /* src_mask */
1555 0xffff, /* dst_mask */
1556 FALSE), /* pcrel_offset */
1557
1558 /* Like TPREL16, but for insns with a DS field. */
1559 HOWTO (R_PPC64_TPREL16_DS,
1560 0, /* rightshift */
1561 1, /* size (0 = byte, 1 = short, 2 = long) */
1562 16, /* bitsize */
1563 FALSE, /* pc_relative */
1564 0, /* bitpos */
1565 complain_overflow_signed, /* complain_on_overflow */
1566 ppc64_elf_unhandled_reloc, /* special_function */
1567 "R_PPC64_TPREL16_DS", /* name */
1568 FALSE, /* partial_inplace */
1569 0, /* src_mask */
1570 0xfffc, /* dst_mask */
1571 FALSE), /* pcrel_offset */
1572
1573 /* Like TPREL16_DS, but no overflow. */
1574 HOWTO (R_PPC64_TPREL16_LO_DS,
1575 0, /* rightshift */
1576 1, /* size (0 = byte, 1 = short, 2 = long) */
1577 16, /* bitsize */
1578 FALSE, /* pc_relative */
1579 0, /* bitpos */
1580 complain_overflow_dont, /* complain_on_overflow */
1581 ppc64_elf_unhandled_reloc, /* special_function */
1582 "R_PPC64_TPREL16_LO_DS", /* name */
1583 FALSE, /* partial_inplace */
1584 0, /* src_mask */
1585 0xfffc, /* dst_mask */
1586 FALSE), /* pcrel_offset */
1587
1588 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1589 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1590 to the first entry relative to the TOC base (r2). */
1591 HOWTO (R_PPC64_GOT_TLSGD16,
1592 0, /* rightshift */
1593 1, /* size (0 = byte, 1 = short, 2 = long) */
1594 16, /* bitsize */
1595 FALSE, /* pc_relative */
1596 0, /* bitpos */
1597 complain_overflow_signed, /* complain_on_overflow */
1598 ppc64_elf_unhandled_reloc, /* special_function */
1599 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1600 FALSE, /* partial_inplace */
5bd4f169
AM		 1601 0, /* src_mask */
1602 0xffff, /* dst_mask */
b34976b6 1603 FALSE), /* pcrel_offset */
5bd4f169 1604
411e1bfb
AM		 1605 /* Like GOT_TLSGD16, but no overflow. */
1606 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1607 0, /* rightshift */
1608 1, /* size (0 = byte, 1 = short, 2 = long) */
1609 16, /* bitsize */
b34976b6 1610 FALSE, /* pc_relative */
5bd4f169
AM		 1611 0, /* bitpos */
1612 complain_overflow_dont, /* complain_on_overflow */
805fc799 1613 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1614 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1615 FALSE, /* partial_inplace */
5bd4f169
AM		 1616 0, /* src_mask */
1617 0xffff, /* dst_mask */
b34976b6 1618 FALSE), /* pcrel_offset */
5bd4f169 1619
411e1bfb
AM		 1620 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1621 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1622 16, /* rightshift */
1623 1, /* size (0 = byte, 1 = short, 2 = long) */
1624 16, /* bitsize */
b34976b6 1625 FALSE, /* pc_relative */
5bd4f169
AM		 1626 0, /* bitpos */
1627 complain_overflow_dont, /* complain_on_overflow */
805fc799 1628 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1629 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1630 FALSE, /* partial_inplace */
5bd4f169
AM		 1631 0, /* src_mask */
1632 0xffff, /* dst_mask */
b34976b6 1633 FALSE), /* pcrel_offset */
5bd4f169 1634
411e1bfb
AM		 1635 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1636 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1637 16, /* rightshift */
1638 1, /* size (0 = byte, 1 = short, 2 = long) */
1639 16, /* bitsize */
b34976b6 1640 FALSE, /* pc_relative */
5bd4f169 1641 0, /* bitpos */
411e1bfb 1642 complain_overflow_dont, /* complain_on_overflow */
805fc799 1643 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1644 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1645 FALSE, /* partial_inplace */
5bd4f169
AM		 1646 0, /* src_mask */
1647 0xffff, /* dst_mask */
b34976b6 1648 FALSE), /* pcrel_offset */
5bd4f169 1649
411e1bfb
AM		 1650 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1651 with values (sym+add)@dtpmod and zero, and computes the offset to the
1652 first entry relative to the TOC base (r2). */
1653 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1654 0, /* rightshift */
1655 1, /* size (0 = byte, 1 = short, 2 = long) */
1656 16, /* bitsize */
b34976b6 1657 FALSE, /* pc_relative */
5bd4f169 1658 0, /* bitpos */
411e1bfb
AM		 1659 complain_overflow_signed, /* complain_on_overflow */
1660 ppc64_elf_unhandled_reloc, /* special_function */
1661 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1662 FALSE, /* partial_inplace */
d006db6c 1663 0, /* src_mask */
411e1bfb 1664 0xffff, /* dst_mask */
b34976b6 1665 FALSE), /* pcrel_offset */
5bd4f169 1666
411e1bfb
AM		 1667 /* Like GOT_TLSLD16, but no overflow. */
1668 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1669 0, /* rightshift */
1670 1, /* size (0 = byte, 1 = short, 2 = long) */
1671 16, /* bitsize */
b34976b6 1672 FALSE, /* pc_relative */
5bd4f169 1673 0, /* bitpos */
411e1bfb
AM		 1674 complain_overflow_dont, /* complain_on_overflow */
1675 ppc64_elf_unhandled_reloc, /* special_function */
1676 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1677 FALSE, /* partial_inplace */
d006db6c 1678 0, /* src_mask */
411e1bfb 1679 0xffff, /* dst_mask */
b34976b6 1680 FALSE), /* pcrel_offset */
5bd4f169 1681
411e1bfb
AM		 1682 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1683 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1684 16, /* rightshift */
5bd4f169
AM		 1685 1, /* size (0 = byte, 1 = short, 2 = long) */
1686 16, /* bitsize */
b34976b6 1687 FALSE, /* pc_relative */
5bd4f169 1688 0, /* bitpos */
411e1bfb 1689 complain_overflow_dont, /* complain_on_overflow */
805fc799 1690 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1691 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1692 FALSE, /* partial_inplace */
d006db6c 1693 0, /* src_mask */
411e1bfb 1694 0xffff, /* dst_mask */
b34976b6 1695 FALSE), /* pcrel_offset */
5bd4f169 1696
411e1bfb
AM		 1697 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1698 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1699 16, /* rightshift */
5bd4f169
AM		 1700 1, /* size (0 = byte, 1 = short, 2 = long) */
1701 16, /* bitsize */
b34976b6 1702 FALSE, /* pc_relative */
5bd4f169
AM		 1703 0, /* bitpos */
1704 complain_overflow_dont, /* complain_on_overflow */
805fc799 1705 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1706 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1707 FALSE, /* partial_inplace */
d006db6c 1708 0, /* src_mask */
411e1bfb 1709 0xffff, /* dst_mask */
b34976b6 1710 FALSE), /* pcrel_offset */
5bd4f169 1711
411e1bfb
AM		 1712 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1713 the offset to the entry relative to the TOC base (r2). */
1714 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1715 0, /* rightshift */
1716 1, /* size (0 = byte, 1 = short, 2 = long) */
1717 16, /* bitsize */
b34976b6 1718 FALSE, /* pc_relative */
5bd4f169 1719 0, /* bitpos */
411e1bfb 1720 complain_overflow_signed, /* complain_on_overflow */
805fc799 1721 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1722 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1723 FALSE, /* partial_inplace */
d006db6c 1724 0, /* src_mask */
5bd4f169 1725 0xfffc, /* dst_mask */
b34976b6 1726 FALSE), /* pcrel_offset */
5bd4f169 1727
411e1bfb
AM		 1728 /* Like GOT_DTPREL16_DS, but no overflow. */
1729 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1730 0, /* rightshift */
c061c2d8
AM		 1731 1, /* size (0 = byte, 1 = short, 2 = long) */
1732 16, /* bitsize */
b34976b6 1733 FALSE, /* pc_relative */
5bd4f169 1734 0, /* bitpos */
411e1bfb
AM		 1735 complain_overflow_dont, /* complain_on_overflow */
1736 ppc64_elf_unhandled_reloc, /* special_function */
1737 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1738 FALSE, /* partial_inplace */
d006db6c 1739 0, /* src_mask */
c061c2d8 1740 0xfffc, /* dst_mask */
b34976b6 1741 FALSE), /* pcrel_offset */
5bd4f169 1742
411e1bfb
AM		 1743 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1744 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1745 16, /* rightshift */
5bd4f169
AM		 1746 1, /* size (0 = byte, 1 = short, 2 = long) */
1747 16, /* bitsize */
b34976b6 1748 FALSE, /* pc_relative */
5bd4f169
AM		 1749 0, /* bitpos */
1750 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1751 ppc64_elf_unhandled_reloc, /* special_function */
1752 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1753 FALSE, /* partial_inplace */
d006db6c 1754 0, /* src_mask */
411e1bfb 1755 0xffff, /* dst_mask */
b34976b6 1756 FALSE), /* pcrel_offset */
5bd4f169 1757
411e1bfb
AM		 1758 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1759 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1760 16, /* rightshift */
1761 1, /* size (0 = byte, 1 = short, 2 = long) */
1762 16, /* bitsize */
1763 FALSE, /* pc_relative */
1764 0, /* bitpos */
1765 complain_overflow_dont, /* complain_on_overflow */
1766 ppc64_elf_unhandled_reloc, /* special_function */
1767 "R_PPC64_GOT_DTPREL16_HA", /* name */
1768 FALSE, /* partial_inplace */
1769 0, /* src_mask */
1770 0xffff, /* dst_mask */
1771 FALSE), /* pcrel_offset */
1772
1773 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1774 offset to the entry relative to the TOC base (r2). */
1775 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1776 0, /* rightshift */
1777 1, /* size (0 = byte, 1 = short, 2 = long) */
1778 16, /* bitsize */
b34976b6 1779 FALSE, /* pc_relative */
5bd4f169
AM		 1780 0, /* bitpos */
1781 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1782 ppc64_elf_unhandled_reloc, /* special_function */
1783 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1784 FALSE, /* partial_inplace */
d006db6c 1785 0, /* src_mask */
ad8e1ba5 1786 0xfffc, /* dst_mask */
b34976b6 1787 FALSE), /* pcrel_offset */
5bd4f169 1788
411e1bfb
AM		 1789 /* Like GOT_TPREL16_DS, but no overflow. */
1790 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1791 0, /* rightshift */
1792 1, /* size (0 = byte, 1 = short, 2 = long) */
1793 16, /* bitsize */
b34976b6 1794 FALSE, /* pc_relative */
5bd4f169
AM		 1795 0, /* bitpos */
1796 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1797 ppc64_elf_unhandled_reloc, /* special_function */
1798 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1799 FALSE, /* partial_inplace */
d006db6c 1800 0, /* src_mask */
ad8e1ba5 1801 0xfffc, /* dst_mask */
b34976b6 1802 FALSE), /* pcrel_offset */
5bd4f169 1803
411e1bfb
AM		 1804 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1805 HOWTO (R_PPC64_GOT_TPREL16_HI,
1806 16, /* rightshift */
5bd4f169
AM		 1807 1, /* size (0 = byte, 1 = short, 2 = long) */
1808 16, /* bitsize */
b34976b6 1809 FALSE, /* pc_relative */
5bd4f169 1810 0, /* bitpos */
411e1bfb 1811 complain_overflow_dont, /* complain_on_overflow */
805fc799 1812 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1813 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1814 FALSE, /* partial_inplace */
d006db6c 1815 0, /* src_mask */
411e1bfb 1816 0xffff, /* dst_mask */
b34976b6 1817 FALSE), /* pcrel_offset */
5bd4f169 1818
411e1bfb
AM		 1819 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1820 HOWTO (R_PPC64_GOT_TPREL16_HA,
1821 16, /* rightshift */
5bd4f169
AM		 1822 1, /* size (0 = byte, 1 = short, 2 = long) */
1823 16, /* bitsize */
b34976b6 1824 FALSE, /* pc_relative */
5bd4f169
AM		 1825 0, /* bitpos */
1826 complain_overflow_dont, /* complain_on_overflow */
805fc799 1827 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1828 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1829 FALSE, /* partial_inplace */
d006db6c 1830 0, /* src_mask */
411e1bfb 1831 0xffff, /* dst_mask */
b34976b6 1832 FALSE), /* pcrel_offset */
5bd4f169
AM		 1833
1834 /* GNU extension to record C++ vtable hierarchy. */
1835 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1836 0, /* rightshift */
1837 0, /* size (0 = byte, 1 = short, 2 = long) */
1838 0, /* bitsize */
b34976b6 1839 FALSE, /* pc_relative */
5bd4f169
AM		 1840 0, /* bitpos */
1841 complain_overflow_dont, /* complain_on_overflow */
1842 NULL, /* special_function */
1843 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1844 FALSE, /* partial_inplace */
5bd4f169
AM		 1845 0, /* src_mask */
1846 0, /* dst_mask */
b34976b6 1847 FALSE), /* pcrel_offset */
5bd4f169
AM		 1848
1849 /* GNU extension to record C++ vtable member usage. */
1850 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1851 0, /* rightshift */
1852 0, /* size (0 = byte, 1 = short, 2 = long) */
1853 0, /* bitsize */
b34976b6 1854 FALSE, /* pc_relative */
5bd4f169
AM		 1855 0, /* bitpos */
1856 complain_overflow_dont, /* complain_on_overflow */
1857 NULL, /* special_function */
1858 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1859 FALSE, /* partial_inplace */
5bd4f169
AM		 1860 0, /* src_mask */
1861 0, /* dst_mask */
b34976b6 1862 FALSE), /* pcrel_offset */
5bd4f169
AM		 1863};
1864
1865\f
1866/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1867 be done. */
1868
1869static void
4ce794b7 1870ppc_howto_init (void)
5bd4f169
AM		 1871{
1872 unsigned int i, type;
1873
1874 for (i = 0;
1875 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1876 i++)
1877 {
1878 type = ppc64_elf_howto_raw[i].type;
1879 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1880 / sizeof (ppc64_elf_howto_table[0])));
1881 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1882 }
1883}
1884
1885static reloc_howto_type *
4ce794b7
AM		 1886ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1887 bfd_reloc_code_real_type code)
5bd4f169 1888{
411e1bfb 1889 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 1890
1891 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1892 /* Initialize howto table if needed. */
1893 ppc_howto_init ();
1894
4ce794b7 1895 switch (code)
5bd4f169
AM		 1896 {
1897 default:
4ce794b7 1898 return NULL;
5bd4f169 1899
411e1bfb
AM		 1900 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1901 break;
1902 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1903 break;
1904 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1905 break;
1906 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1907 break;
1908 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1909 break;
1910 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1911 break;
1912 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1913 break;
411e1bfb 1914 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1915 break;
411e1bfb 1916 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1917 break;
411e1bfb 1918 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1919 break;
411e1bfb 1920 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1921 break;
411e1bfb 1922 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1923 break;
411e1bfb 1924 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1925 break;
411e1bfb 1926 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1927 break;
411e1bfb 1928 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1929 break;
411e1bfb 1930 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1931 break;
411e1bfb 1932 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1933 break;
411e1bfb 1934 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1935 break;
411e1bfb 1936 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1937 break;
411e1bfb 1938 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1939 break;
411e1bfb 1940 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1941 break;
411e1bfb 1942 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1943 break;
411e1bfb 1944 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1945 break;
411e1bfb 1946 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1947 break;
411e1bfb 1948 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1949 break;
411e1bfb 1950 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1951 break;
411e1bfb 1952 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1953 break;
411e1bfb 1954 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1955 break;
411e1bfb 1956 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1957 break;
411e1bfb 1958 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1959 break;
411e1bfb 1960 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1961 break;
411e1bfb 1962 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1963 break;
411e1bfb 1964 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1965 break;
411e1bfb 1966 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1967 break;
411e1bfb 1968 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1969 break;
411e1bfb 1970 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1971 break;
411e1bfb 1972 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1973 break;
411e1bfb 1974 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1975 break;
411e1bfb 1976 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1977 break;
411e1bfb 1978 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1979 break;
411e1bfb 1980 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1981 break;
411e1bfb 1982 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1983 break;
411e1bfb 1984 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1985 break;
411e1bfb 1986 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1987 break;
411e1bfb 1988 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1989 break;
411e1bfb 1990 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1991 break;
411e1bfb 1992 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1993 break;
411e1bfb 1994 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1995 break;
411e1bfb 1996 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1997 break;
411e1bfb 1998 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 1999 break;
411e1bfb 2000 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 2001 break;
411e1bfb 2002 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 2003 break;
411e1bfb 2004 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 2005 break;
411e1bfb 2006 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 2007 break;
411e1bfb 2008 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 2009 break;
411e1bfb 2010 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 2011 break;
411e1bfb 2012 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2013 break;
411e1bfb 2014 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2015 break;
411e1bfb 2016 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2017 break;
411e1bfb 2018 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2019 break;
411e1bfb 2020 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2021 break;
411e1bfb 2022 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2023 break;
411e1bfb 2024 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2025 break;
411e1bfb 2026 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2027 break;
411e1bfb 2028 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2029 break;
411e1bfb 2030 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2031 break;
411e1bfb
AM		 2032 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2033 break;
2034 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2035 break;
2036 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2037 break;
2038 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2039 break;
2040 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2041 break;
2042 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2043 break;
2044 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2045 break;
2046 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2047 break;
2048 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2049 break;
2050 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2051 break;
2052 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2053 break;
2054 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2055 break;
2056 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2057 break;
2058 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2059 break;
2060 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2061 break;
2062 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2063 break;
2064 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2065 break;
2066 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2067 break;
2068 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2069 break;
2070 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2071 break;
2072 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2073 break;
2074 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2075 break;
2076 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2077 break;
2078 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2079 break;
2080 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2081 break;
2082 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2083 break;
2084 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2085 break;
2086 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2087 break;
2088 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2089 break;
2090 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2091 break;
2092 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2093 break;
2094 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2095 break;
2096 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2097 break;
2098 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2099 break;
2100 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2101 break;
2102 }
2103
4ce794b7 2104 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2105};
2106
2107/* Set the howto pointer for a PowerPC ELF reloc. */
2108
2109static void
4ce794b7
AM		 2110ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2111 Elf_Internal_Rela *dst)
5bd4f169 2112{
65f38f15
AM		 2113 unsigned int type;
2114
ef60b7ff 2115 /* Initialize howto table if needed. */
5bd4f169 2116 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2117 ppc_howto_init ();
2118
65f38f15 2119 type = ELF64_R_TYPE (dst->r_info);
d0fb9a8d
JJ		 2120 if (type >= (sizeof (ppc64_elf_howto_table)
2121 / sizeof (ppc64_elf_howto_table[0])))
2122 {
2123 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
3ec2b351
NC		 2124 abfd, (int) type);
2125 type = R_PPC64_NONE;
d0fb9a8d 2126 }
65f38f15 2127 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2128}
2129
04c9666a 2130/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2131
2132static bfd_reloc_status_type
4ce794b7
AM		 2133ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2134 void *data, asection *input_section,
2135 bfd *output_bfd, char **error_message)
5bd4f169 2136{
805fc799
AM		 2137 /* If this is a relocatable link (output_bfd test tells us), just
2138 call the generic function. Any adjustment will be done at final
2139 link time. */
2140 if (output_bfd != NULL)
cedb70c5 2141 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2142 input_section, output_bfd, error_message);
2143
2144 /* Adjust the addend for sign extension of the low 16 bits.
2145 We won't actually be using the low 16 bits, so trashing them
2146 doesn't matter. */
2147 reloc_entry->addend += 0x8000;
2148 return bfd_reloc_continue;
2149}
5bd4f169 2150
2441e016
AM		 2151static bfd_reloc_status_type
2152ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2153 void *data, asection *input_section,
2154 bfd *output_bfd, char **error_message)
2155{
2156 if (output_bfd != NULL)
2157 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2158 input_section, output_bfd, error_message);
2159
699733f6
AM		 2160 if (strcmp (symbol->section->name, ".opd") == 0
2161 && (symbol->section->owner->flags & DYNAMIC) == 0)
2441e016
AM		 2162 {
2163 bfd_vma dest = opd_entry_value (symbol->section,
2164 symbol->value + reloc_entry->addend,
2165 NULL, NULL);
2166 if (dest != (bfd_vma) -1)
2167 reloc_entry->addend = dest - (symbol->value
2168 + symbol->section->output_section->vma
2169 + symbol->section->output_offset);
2170 }
2171 return bfd_reloc_continue;
2172}
2173
805fc799 2174static bfd_reloc_status_type
4ce794b7
AM		 2175ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2176 void *data, asection *input_section,
2177 bfd *output_bfd, char **error_message)
805fc799
AM		 2178{
2179 long insn;
04c9666a 2180 enum elf_ppc64_reloc_type r_type;
805fc799
AM		 2181 bfd_size_type octets;
2182 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2183 bfd_boolean is_power4 = FALSE;
805fc799
AM		 2184
2185 /* If this is a relocatable link (output_bfd test tells us), just
2186 call the generic function. Any adjustment will be done at final
2187 link time. */
5bd4f169 2188 if (output_bfd != NULL)
cedb70c5 2189 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2190 input_section, output_bfd, error_message);
2191
2192 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2193 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2194 insn &= ~(0x01 << 21);
4ce794b7 2195 r_type = reloc_entry->howto->type;
805fc799
AM		 2196 if (r_type == R_PPC64_ADDR14_BRTAKEN
2197 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2198 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM		 2199
2200 if (is_power4)
5bd4f169 2201 {
805fc799
AM		 2202 /* Set 'a' bit. This is 0b00010 in BO field for branch
2203 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2204 for branch on CTR insns (BO == 1a00t or 1a01t). */
2205 if ((insn & (0x14 << 21)) == (0x04 << 21))
2206 insn |= 0x02 << 21;
2207 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2208 insn |= 0x08 << 21;
2209 else
2441e016 2210 goto out;
5bd4f169 2211 }
805fc799
AM		 2212 else
2213 {
2214 bfd_vma target = 0;
2215 bfd_vma from;
5bd4f169 2216
805fc799
AM		 2217 if (!bfd_is_com_section (symbol->section))
2218 target = symbol->value;
2219 target += symbol->section->output_section->vma;
2220 target += symbol->section->output_offset;
2221 target += reloc_entry->addend;
5bd4f169 2222
805fc799
AM		 2223 from = (reloc_entry->address
2224 + input_section->output_offset
2225 + input_section->output_section->vma);
5bd4f169 2226
805fc799
AM		 2227 /* Invert 'y' bit if not the default. */
2228 if ((bfd_signed_vma) (target - from) < 0)
2229 insn ^= 0x01 << 21;
2230 }
4ce794b7 2231 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2441e016
AM		 2232 out:
2233 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2234 input_section, output_bfd, error_message);
805fc799 2235}
5bd4f169 2236
805fc799 2237static bfd_reloc_status_type
4ce794b7
AM		 2238ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2239 void *data, asection *input_section,
2240 bfd *output_bfd, char **error_message)
805fc799
AM		 2241{
2242 /* If this is a relocatable link (output_bfd test tells us), just
2243 call the generic function. Any adjustment will be done at final
2244 link time. */
2245 if (output_bfd != NULL)
cedb70c5 2246 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2247 input_section, output_bfd, error_message);
5bd4f169 2248
805fc799
AM		 2249 /* Subtract the symbol section base address. */
2250 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2251 return bfd_reloc_continue;
2252}
2253
805fc799 2254static bfd_reloc_status_type
4ce794b7
AM		 2255ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2256 void *data, asection *input_section,
2257 bfd *output_bfd, char **error_message)
805fc799
AM		 2258{
2259 /* If this is a relocatable link (output_bfd test tells us), just
2260 call the generic function. Any adjustment will be done at final
2261 link time. */
2262 if (output_bfd != NULL)
cedb70c5 2263 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2264 input_section, output_bfd, error_message);
2265
2266 /* Subtract the symbol section base address. */
2267 reloc_entry->addend -= symbol->section->output_section->vma;
2268
2269 /* Adjust the addend for sign extension of the low 16 bits. */
2270 reloc_entry->addend += 0x8000;
2271 return bfd_reloc_continue;
2272}
2273
2274static bfd_reloc_status_type
4ce794b7
AM		 2275ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2276 void *data, asection *input_section,
2277 bfd *output_bfd, char **error_message)
805fc799
AM		 2278{
2279 bfd_vma TOCstart;
2280
2281 /* If this is a relocatable link (output_bfd test tells us), just
2282 call the generic function. Any adjustment will be done at final
2283 link time. */
2284 if (output_bfd != NULL)
cedb70c5 2285 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2286 input_section, output_bfd, error_message);
2287
2288 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2289 if (TOCstart == 0)
2290 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2291
2292 /* Subtract the TOC base address. */
2293 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2294 return bfd_reloc_continue;
2295}
2296
2297static bfd_reloc_status_type
4ce794b7
AM		 2298ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2299 void *data, asection *input_section,
2300 bfd *output_bfd, char **error_message)
805fc799
AM		 2301{
2302 bfd_vma TOCstart;
2303
2304 /* If this is a relocatable link (output_bfd test tells us), just
2305 call the generic function. Any adjustment will be done at final
2306 link time. */
2307 if (output_bfd != NULL)
cedb70c5 2308 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2309 input_section, output_bfd, error_message);
2310
2311 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2312 if (TOCstart == 0)
2313 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2314
2315 /* Subtract the TOC base address. */
2316 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2317
2318 /* Adjust the addend for sign extension of the low 16 bits. */
2319 reloc_entry->addend += 0x8000;
2320 return bfd_reloc_continue;
2321}
2322
2323static bfd_reloc_status_type
4ce794b7
AM		 2324ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2325 void *data, asection *input_section,
2326 bfd *output_bfd, char **error_message)
805fc799
AM		 2327{
2328 bfd_vma TOCstart;
2329 bfd_size_type octets;
2330
2331 /* If this is a relocatable link (output_bfd test tells us), just
2332 call the generic function. Any adjustment will be done at final
2333 link time. */
2334 if (output_bfd != NULL)
cedb70c5 2335 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2336 input_section, output_bfd, error_message);
2337
2338 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2339 if (TOCstart == 0)
2340 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2341
2342 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2343 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2344 return bfd_reloc_ok;
2345}
2346
2347static bfd_reloc_status_type
4ce794b7
AM		 2348ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2349 void *data, asection *input_section,
2350 bfd *output_bfd, char **error_message)
805fc799
AM		 2351{
2352 /* If this is a relocatable link (output_bfd test tells us), just
2353 call the generic function. Any adjustment will be done at final
2354 link time. */
2355 if (output_bfd != NULL)
cedb70c5 2356 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2357 input_section, output_bfd, error_message);
2358
2359 if (error_message != NULL)
2360 {
2361 static char buf[60];
2362 sprintf (buf, "generic linker can't handle %s",
2363 reloc_entry->howto->name);
2364 *error_message = buf;
2365 }
2366 return bfd_reloc_dangerous;
2367}
2368
e717da7e
AM		 2369struct ppc64_elf_obj_tdata
2370{
2371 struct elf_obj_tdata elf;
2372
2373 /* Shortcuts to dynamic linker sections. */
2374 asection *got;
2375 asection *relgot;
2376
433817dd
AM		 2377 union {
2378 /* Used during garbage collection. We attach global symbols defined
2379 on removed .opd entries to this section so that the sym is removed. */
2380 asection *deleted_section;
2381
2382 /* Used when adding symbols. */
2383 bfd_boolean has_dotsym;
2384 } u;
81688140 2385
e717da7e
AM		 2386 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2387 sections means we potentially need one of these for each input bfd. */
2388 union {
2389 bfd_signed_vma refcount;
2390 bfd_vma offset;
2391 } tlsld_got;
8860955f
AM		 2392
2393 /* A copy of relocs before they are modified for --emit-relocs. */
2394 Elf_Internal_Rela *opd_relocs;
e717da7e
AM		 2395};
2396
2397#define ppc64_elf_tdata(bfd) \
2398 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2399
2400#define ppc64_tlsld_got(bfd) \
2401 (&ppc64_elf_tdata (bfd)->tlsld_got)
2402
2403/* Override the generic function because we store some extras. */
2404
2405static bfd_boolean
2406ppc64_elf_mkobject (bfd *abfd)
2407{
2408 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2409 abfd->tdata.any = bfd_zalloc (abfd, amt);
2410 if (abfd->tdata.any == NULL)
2411 return FALSE;
2412 return TRUE;
2413}
2414
ee75fd95
AM		 2415/* Return 1 if target is one of ours. */
2416
7b53ace3 2417static bfd_boolean
ee75fd95 2418is_ppc64_elf_target (const struct bfd_target *targ)
7b53ace3
AM		 2419{
2420 extern const bfd_target bfd_elf64_powerpc_vec;
2421 extern const bfd_target bfd_elf64_powerpcle_vec;
2422
2423 return targ == &bfd_elf64_powerpc_vec || targ == &bfd_elf64_powerpcle_vec;
2424}
2425
feee612b
AM		 2426/* Fix bad default arch selected for a 64 bit input bfd when the
2427 default is 32 bit. */
2428
b34976b6 2429static bfd_boolean
4ce794b7 2430ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2431{
2432 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2433 {
2434 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2435
2436 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2437 {
2438 /* Relies on arch after 32 bit default being 64 bit default. */
2439 abfd->arch_info = abfd->arch_info->next;
2440 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2441 }
2442 }
b34976b6 2443 return TRUE;
feee612b
AM		 2444}
2445
d37c89e5
AM		 2446/* Support for core dump NOTE sections. */
2447
2448static bfd_boolean
2449ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2450{
eea6121a 2451 size_t offset, size;
d37c89e5
AM		 2452
2453 if (note->descsz != 504)
2454 return FALSE;
2455
2456 /* pr_cursig */
2457 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2458
2459 /* pr_pid */
2460 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2461
2462 /* pr_reg */
2463 offset = 112;
eea6121a 2464 size = 384;
d37c89e5
AM		 2465
2466 /* Make a ".reg/999" section. */
2467 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2468 size, note->descpos + offset);
d37c89e5
AM		 2469}
2470
2471static bfd_boolean
2472ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2473{
2474 if (note->descsz != 136)
2475 return FALSE;
2476
2477 elf_tdata (abfd)->core_program
2478 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2479 elf_tdata (abfd)->core_command
2480 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2481
2482 return TRUE;
2483}
2484
5bd4f169
AM		 2485/* Merge backend specific data from an object file to the output
2486 object file when linking. */
2f6d9989 2487
b34976b6 2488static bfd_boolean
4ce794b7 2489ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2490{
5bd4f169
AM		 2491 /* Check if we have the same endianess. */
2492 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2493 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM		 2494 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2495 {
2496 const char *msg;
2497
2498 if (bfd_big_endian (ibfd))
d003868e 2499 msg = _("%B: compiled for a big endian system "
4ce794b7 2500 "and target is little endian");
5bd4f169 2501 else
d003868e 2502 msg = _("%B: compiled for a little endian system "
4ce794b7 2503 "and target is big endian");
5bd4f169 2504
d003868e 2505 (*_bfd_error_handler) (msg, ibfd);
5bd4f169
AM		 2506
2507 bfd_set_error (bfd_error_wrong_format);
b34976b6 2508 return FALSE;
5bd4f169
AM		 2509 }
2510
b34976b6 2511 return TRUE;
5bd4f169 2512}
f0abc2a1 2513
5d35169e
AM		 2514/* Add extra PPC sections. */
2515
b35d266b 2516static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
7f4d3958
L		 2517{
2518 { ".plt", 4, 0, SHT_NOBITS, 0 },
7dcb9820 2519 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
551b43fd 2520 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
7dcb9820
AM		 2521 { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2522 { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2523 { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2524 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 2525};
2526
f0abc2a1
AM		 2527struct _ppc64_elf_section_data
2528{
2529 struct bfd_elf_section_data elf;
411e1bfb
AM		 2530
2531 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM		 2532 union
2533 {
411e1bfb 2534 /* Points to the function code section for local opd entries. */
f0abc2a1 2535 asection **func_sec;
411e1bfb 2536 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM		 2537 long *adjust;
2538 } opd;
411e1bfb
AM		 2539
2540 /* An array for toc sections, indexed by offset/8.
2541 Specifies the relocation symbol index used at a given toc offset. */
2542 unsigned *t_symndx;
f0abc2a1
AM		 2543};
2544
2545#define ppc64_elf_section_data(sec) \
411e1bfb 2546 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2547
2548static bfd_boolean
4ce794b7 2549ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1
AM		 2550{
2551 struct _ppc64_elf_section_data *sdata;
2552 bfd_size_type amt = sizeof (*sdata);
2553
4ce794b7 2554 sdata = bfd_zalloc (abfd, amt);
f0abc2a1
AM		 2555 if (sdata == NULL)
2556 return FALSE;
4ce794b7 2557 sec->used_by_bfd = sdata;
f0abc2a1
AM		 2558
2559 return _bfd_elf_new_section_hook (abfd, sec);
2560}
4025353c
AM		 2561
2562static void *
2563get_opd_info (asection * sec)
2564{
2565 if (sec != NULL
2566 && ppc64_elf_section_data (sec) != NULL
2567 && ppc64_elf_section_data (sec)->opd.adjust != NULL)
2568 return ppc64_elf_section_data (sec)->opd.adjust;
2569 return NULL;
2570}
90e3cdf2
JJ		 2571\f
2572/* Parameters for the qsort hook. */
2573static asection *synthetic_opd;
2574static bfd_boolean synthetic_relocatable;
2575
699733f6 2576/* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
90e3cdf2
JJ		 2577
2578static int
2579compare_symbols (const void *ap, const void *bp)
2580{
2581 const asymbol *a = * (const asymbol **) ap;
2582 const asymbol *b = * (const asymbol **) bp;
2583
699733f6
AM		 2584 /* Section symbols first. */
2585 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
90e3cdf2 2586 return -1;
699733f6 2587 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
90e3cdf2
JJ		 2588 return 1;
2589
699733f6 2590 /* then .opd symbols. */
90e3cdf2
JJ		 2591 if (a->section == synthetic_opd && b->section != synthetic_opd)
2592 return -1;
2593 if (a->section != synthetic_opd && b->section == synthetic_opd)
2594 return 1;
2595
699733f6 2596 /* then other code symbols. */
90e3cdf2
JJ		 2597 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2598 == (SEC_CODE | SEC_ALLOC)
2599 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2600 != (SEC_CODE | SEC_ALLOC))
2601 return -1;
2602
2603 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2604 != (SEC_CODE | SEC_ALLOC)
2605 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2606 == (SEC_CODE | SEC_ALLOC))
2607 return 1;
2608
2609 if (synthetic_relocatable)
2610 {
2611 if (a->section->id < b->section->id)
2612 return -1;
2613
2614 if (a->section->id > b->section->id)
2615 return 1;
2616 }
2617
2618 if (a->value + a->section->vma < b->value + b->section->vma)
2619 return -1;
2620
2621 if (a->value + a->section->vma > b->value + b->section->vma)
2622 return 1;
2623
2624 return 0;
2625}
2626
699733f6 2627/* Search SYMS for a symbol of the given VALUE. */
90e3cdf2 2628
699733f6
AM		 2629static asymbol *
2630sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
90e3cdf2 2631{
699733f6 2632 long mid;
90e3cdf2 2633
699733f6
AM		 2634 if (id == -1)
2635 {
2636 while (lo < hi)
2637 {
2638 mid = (lo + hi) >> 1;
2639 if (syms[mid]->value + syms[mid]->section->vma < value)
2640 lo = mid + 1;
2641 else if (syms[mid]->value + syms[mid]->section->vma > value)
2642 hi = mid;
2643 else
2644 return syms[mid];
2645 }
2646 }
2647 else
2648 {
2649 while (lo < hi)
2650 {
2651 mid = (lo + hi) >> 1;
2652 if (syms[mid]->section->id < id)
2653 lo = mid + 1;
2654 else if (syms[mid]->section->id > id)
2655 hi = mid;
2656 else if (syms[mid]->value < value)
2657 lo = mid + 1;
2658 else if (syms[mid]->value > value)
2659 hi = mid;
2660 else
2661 return syms[mid];
2662 }
2663 }
2664 return NULL;
90e3cdf2
JJ		 2665}
2666
699733f6
AM		 2667/* Create synthetic symbols, effectively restoring "dot-symbol" function
2668 entry syms. */
90e3cdf2
JJ		 2669
2670static long
a7535cf3
AM		 2671ppc64_elf_get_synthetic_symtab (bfd *abfd,
2672 long static_count, asymbol **static_syms,
2673 long dyn_count, asymbol **dyn_syms,
c9727e01 2674 asymbol **ret)
90e3cdf2
JJ		 2675{
2676 asymbol *s;
699733f6
AM		 2677 long i;
2678 long count;
90e3cdf2 2679 char *names;
a7535cf3 2680 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
699733f6 2681 asection *opd;
90e3cdf2 2682 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
a7535cf3 2683 asymbol **syms;
90e3cdf2
JJ		 2684
2685 *ret = NULL;
2686
2687 opd = bfd_get_section_by_name (abfd, ".opd");
2688 if (opd == NULL)
2689 return 0;
2690
a7535cf3 2691 symcount = static_count;
c9727e01 2692 if (!relocatable)
a7535cf3 2693 symcount += dyn_count;
90e3cdf2 2694 if (symcount == 0)
c9727e01 2695 return 0;
90e3cdf2 2696
a7535cf3
AM		 2697 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
2698 if (syms == NULL)
7356fed5 2699 return -1;
a7535cf3
AM		 2700
2701 if (!relocatable && static_count != 0 && dyn_count != 0)
2702 {
2703 /* Use both symbol tables. */
2704 memcpy (syms, static_syms, static_count * sizeof (*syms));
2705 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
2706 }
2707 else if (!relocatable && static_count == 0)
2708 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
2709 else
2710 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
2711
90e3cdf2
JJ		 2712 synthetic_opd = opd;
2713 synthetic_relocatable = relocatable;
595da8c5 2714 qsort (syms, symcount, sizeof (*syms), compare_symbols);
90e3cdf2 2715
c9727e01
AM		 2716 if (!relocatable && symcount > 1)
2717 {
2718 long j;
2719 /* Trim duplicate syms, since we may have merged the normal and
2720 dynamic symbols. Actually, we only care about syms that have
3b36f7e6 2721 different values, so trim any with the same value. */
c9727e01
AM		 2722 for (i = 1, j = 1; i < symcount; ++i)
2723 if (syms[i - 1]->value + syms[i - 1]->section->vma
2724 != syms[i]->value + syms[i]->section->vma)
2725 syms[j++] = syms[i];
2726 symcount = j;
2727 }
2728
699733f6
AM		 2729 i = 0;
2730 if (syms[i]->section == opd)
2731 ++i;
2732 codesecsym = i;
90e3cdf2 2733
699733f6
AM		 2734 for (; i < symcount; ++i)
2735 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2736 != (SEC_CODE | SEC_ALLOC))
2737 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
2738 break;
2739 codesecsymend = i;
90e3cdf2 2740
699733f6
AM		 2741 for (; i < symcount; ++i)
2742 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
2743 break;
2744 secsymend = i;
90e3cdf2 2745
699733f6
AM		 2746 for (; i < symcount; ++i)
2747 if (syms[i]->section != opd)
2748 break;
2749 opdsymend = i;
90e3cdf2 2750
699733f6
AM		 2751 for (; i < symcount; ++i)
2752 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2753 != (SEC_CODE | SEC_ALLOC))
2754 break;
2755 symcount = i;
2756
c9727e01 2757 count = 0;
699733f6 2758 if (opdsymend == secsymend)
c9727e01 2759 goto done;
90e3cdf2 2760
699733f6 2761 if (relocatable)
90e3cdf2 2762 {
699733f6
AM		 2763 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2764 arelent *r;
2765 size_t size;
2766 long relcount;
90e3cdf2 2767
699733f6 2768 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
90e3cdf2 2769 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
7356fed5 2770 if (relcount == 0)
c9727e01 2771 goto done;
90e3cdf2 2772
7356fed5
AM		 2773 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
2774 {
2775 count = -1;
2776 goto done;
2777 }
2778
699733f6 2779 size = 0;
595da8c5 2780 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
699733f6
AM		 2781 {
2782 asymbol *sym;
90e3cdf2 2783
595da8c5 2784 while (r < opd->relocation + relcount
699733f6
AM		 2785 && r->address < syms[i]->value + opd->vma)
2786 ++r;
90e3cdf2 2787
595da8c5 2788 if (r == opd->relocation + relcount)
699733f6 2789 break;
90e3cdf2 2790
699733f6
AM		 2791 if (r->address != syms[i]->value + opd->vma)
2792 continue;
90e3cdf2 2793
699733f6
AM		 2794 if (r->howto->type != R_PPC64_ADDR64)
2795 continue;
90e3cdf2 2796
699733f6
AM		 2797 sym = *r->sym_ptr_ptr;
2798 if (!sym_exists_at (syms, opdsymend, symcount,
2799 sym->section->id, sym->value + r->addend))
2800 {
2801 ++count;
2802 size += sizeof (asymbol);
2803 size += strlen (syms[i]->name) + 2;
2804 }
2805 }
90e3cdf2 2806
699733f6
AM		 2807 s = *ret = bfd_malloc (size);
2808 if (s == NULL)
2809 {
7356fed5 2810 count = -1;
c9727e01 2811 goto done;
699733f6 2812 }
90e3cdf2 2813
699733f6 2814 names = (char *) (s + count);
90e3cdf2 2815
595da8c5 2816 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
90e3cdf2 2817 {
699733f6 2818 asymbol *sym;
90e3cdf2 2819
595da8c5 2820 while (r < opd->relocation + relcount
699733f6
AM		 2821 && r->address < syms[i]->value + opd->vma)
2822 ++r;
90e3cdf2 2823
595da8c5 2824 if (r == opd->relocation + relcount)
699733f6
AM		 2825 break;
2826
2827 if (r->address != syms[i]->value + opd->vma)
2828 continue;
2829
2830 if (r->howto->type != R_PPC64_ADDR64)
2831 continue;
90e3cdf2 2832
699733f6
AM		 2833 sym = *r->sym_ptr_ptr;
2834 if (!sym_exists_at (syms, opdsymend, symcount,
2835 sym->section->id, sym->value + r->addend))
2836 {
2837 size_t len;
2838
2839 *s = *syms[i];
2840 s->section = sym->section;
2841 s->value = sym->value + r->addend;
2842 s->name = names;
2843 *names++ = '.';
2844 len = strlen (syms[i]->name);
2845 memcpy (names, syms[i]->name, len + 1);
2846 names += len + 1;
2847 s++;
2848 }
2849 }
2850 }
2851 else
90e3cdf2 2852 {
699733f6
AM		 2853 bfd_byte *contents;
2854 size_t size;
90e3cdf2 2855
699733f6
AM		 2856 if (!bfd_malloc_and_get_section (abfd, opd, &contents))
2857 {
2858 if (contents)
c9727e01
AM		 2859 {
2860 free_contents_and_exit:
2861 free (contents);
2862 }
7356fed5 2863 count = -1;
c9727e01 2864 goto done;
699733f6 2865 }
90e3cdf2 2866
699733f6
AM		 2867 size = 0;
2868 for (i = secsymend; i < opdsymend; ++i)
2869 {
2870 bfd_vma ent;
90e3cdf2 2871
699733f6
AM		 2872 ent = bfd_get_64 (abfd, contents + syms[i]->value);
2873 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
2874 {
2875 ++count;
2876 size += sizeof (asymbol);
2877 size += strlen (syms[i]->name) + 2;
2878 }
2879 }
90e3cdf2 2880
699733f6
AM		 2881 s = *ret = bfd_malloc (size);
2882 if (s == NULL)
7356fed5 2883 goto free_contents_and_exit;
90e3cdf2 2884
699733f6 2885 names = (char *) (s + count);
90e3cdf2 2886
699733f6 2887 for (i = secsymend; i < opdsymend; ++i)
90e3cdf2 2888 {
699733f6 2889 bfd_vma ent;
90e3cdf2 2890
699733f6
AM		 2891 ent = bfd_get_64 (abfd, contents + syms[i]->value);
2892 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
90e3cdf2 2893 {
c9727e01 2894 long lo, hi;
699733f6 2895 size_t len;
c9727e01 2896 asection *sec = abfd->sections;
90e3cdf2 2897
699733f6
AM		 2898 *s = *syms[i];
2899 lo = codesecsym;
2900 hi = codesecsymend;
2901 while (lo < hi)
2902 {
c9727e01 2903 long mid = (lo + hi) >> 1;
699733f6
AM		 2904 if (syms[mid]->section->vma < ent)
2905 lo = mid + 1;
2906 else if (syms[mid]->section->vma > ent)
2907 hi = mid;
2908 else
c9727e01
AM		 2909 {
2910 sec = syms[mid]->section;
2911 break;
2912 }
699733f6
AM		 2913 }
2914
c9727e01 2915 if (lo >= hi && lo > codesecsym)
699733f6 2916 sec = syms[lo - 1]->section;
699733f6
AM		 2917
2918 for (; sec != NULL; sec = sec->next)
2919 {
2920 if (sec->vma > ent)
2921 break;
2922 if ((sec->flags & SEC_ALLOC) == 0
2923 || (sec->flags & SEC_LOAD) == 0)
2924 break;
2925 if ((sec->flags & SEC_CODE) != 0)
2926 s->section = sec;
2927 }
2928 s->value = ent - s->section->vma;
2929 s->name = names;
2930 *names++ = '.';
2931 len = strlen (syms[i]->name);
2932 memcpy (names, syms[i]->name, len + 1);
2933 names += len + 1;
2934 s++;
90e3cdf2 2935 }
90e3cdf2 2936 }
699733f6 2937 free (contents);
90e3cdf2
JJ		 2938 }
2939
c9727e01 2940 done:
a7535cf3 2941 free (syms);
90e3cdf2
JJ		 2942 return count;
2943}
5bd4f169 2944\f
65f38f15
AM		 2945/* The following functions are specific to the ELF linker, while
2946 functions above are used generally. Those named ppc64_elf_* are
2947 called by the main ELF linker code. They appear in this file more
2948 or less in the order in which they are called. eg.
2949 ppc64_elf_check_relocs is called early in the link process,
2950 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 2951 called.
2952
2953 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2954 functions have both a function code symbol and a function descriptor
2955 symbol. A call to foo in a relocatable object file looks like:
2956
2957 . .text
2958 . x:
2959 . bl .foo
2960 . nop
2961
2962 The function definition in another object file might be:
2963
2964 . .section .opd
2965 . foo: .quad .foo
2966 . .quad .TOC.@tocbase
2967 . .quad 0
2968 .
2969 . .text
2970 . .foo: blr
2971
2972 When the linker resolves the call during a static link, the branch
2973 unsurprisingly just goes to .foo and the .opd information is unused.
2974 If the function definition is in a shared library, things are a little
2975 different: The call goes via a plt call stub, the opd information gets
2976 copied to the plt, and the linker patches the nop.
2977
2978 . x:
2979 . bl .foo_stub
2980 . ld 2,40(1)
2981 .
2982 .
2983 . .foo_stub:
2984 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2985 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM		 2986 . std 2,40(1) # this is the general idea
2987 . ld 11,0(12)
2988 . ld 2,8(12)
2989 . mtctr 11
2990 . ld 11,16(12)
2991 . bctr
2992 .
2993 . .section .plt
2994 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2995
2996 The "reloc ()" notation is supposed to indicate that the linker emits
2997 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2998 copying.
2999
3000 What are the difficulties here? Well, firstly, the relocations
3001 examined by the linker in check_relocs are against the function code
3002 sym .foo, while the dynamic relocation in the plt is emitted against
3003 the function descriptor symbol, foo. Somewhere along the line, we need
3004 to carefully copy dynamic link information from one symbol to the other.
3005 Secondly, the generic part of the elf linker will make .foo a dynamic
3006 symbol as is normal for most other backends. We need foo dynamic
3007 instead, at least for an application final link. However, when
3008 creating a shared library containing foo, we need to have both symbols
3009 dynamic so that references to .foo are satisfied during the early
3010 stages of linking. Otherwise the linker might decide to pull in a
8387904d
AM		 3011 definition from some other object, eg. a static library.
3012
3013 Update: As of August 2004, we support a new convention. Function
3014 calls may use the function descriptor symbol, ie. "bl foo". This
3015 behaves exactly as "bl .foo". */
65f38f15
AM		 3016
3017/* The linker needs to keep track of the number of relocs that it
3018 decides to copy as dynamic relocs in check_relocs for each symbol.
3019 This is so that it can later discard them if they are found to be
3020 unnecessary. We store the information in a field extending the
3021 regular ELF linker hash table. */
3022
3023struct ppc_dyn_relocs
3024{
3025 struct ppc_dyn_relocs *next;
3026
3027 /* The input section of the reloc. */
3028 asection *sec;
3029
3030 /* Total number of relocs copied for the input section. */
3031 bfd_size_type count;
3032
3033 /* Number of pc-relative relocs copied for the input section. */
3034 bfd_size_type pc_count;
3035};
3036
411e1bfb
AM		 3037/* Track GOT entries needed for a given symbol. We might need more
3038 than one got entry per symbol. */
3039struct got_entry
3040{
3041 struct got_entry *next;
3042
e7b938ca 3043 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM		 3044 bfd_vma addend;
3045
e717da7e
AM		 3046 /* Unlike other ELF targets, we use separate GOT entries for the same
3047 symbol referenced from different input files. This is to support
3048 automatic multiple TOC/GOT sections, where the TOC base can vary
3049 from one input file to another.
3050
3051 Point to the BFD owning this GOT entry. */
3052 bfd *owner;
3053
3054 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
3055 TLS_TPREL or TLS_DTPREL for tls entries. */
3056 char tls_type;
3057
e7b938ca 3058 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM		 3059 union
3060 {
3061 bfd_signed_vma refcount;
3062 bfd_vma offset;
3063 } got;
411e1bfb
AM		 3064};
3065
3066/* The same for PLT. */
3067struct plt_entry
3068{
3069 struct plt_entry *next;
3070
3071 bfd_vma addend;
3072
3073 union
3074 {
3075 bfd_signed_vma refcount;
3076 bfd_vma offset;
3077 } plt;
3078};
3079
65f38f15 3080/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM		 3081 selects those that must be copied when linking a shared library,
3082 even when the symbol is local. */
65f38f15 3083
411e1bfb 3084#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM		 3085 ((RTYPE) != R_PPC64_REL32 \
3086 && (RTYPE) != R_PPC64_REL64 \
04c9666a 3087 && (RTYPE) != R_PPC64_REL30)
65f38f15 3088
f4656909
AM		 3089/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3090 copying dynamic variables from a shared lib into an app's dynbss
3091 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 3092 shared lib. With code that gcc generates, it's vital that this be
3093 enabled; In the PowerPC64 ABI, the address of a function is actually
3094 the address of a function descriptor, which resides in the .opd
3095 section. gcc uses the descriptor directly rather than going via the
3096 GOT as some other ABI's do, which means that initialized function
3097 pointers must reference the descriptor. Thus, a function pointer
3098 initialized to the address of a function in a shared library will
3099 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 3100 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM		 3101 presents a problem as a plt entry for that function is also
3102 initialized from the function descriptor symbol and the copy reloc
3103 may not be initialized first. */
a23b6845 3104#define ELIMINATE_COPY_RELOCS 1
f4656909 3105
721956f4
AM		 3106/* Section name for stubs is the associated section name plus this
3107 string. */
3108#define STUB_SUFFIX ".stub"
3109
3110/* Linker stubs.
3111 ppc_stub_long_branch:
3112 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3113 destination, but a 24 bit branch in a stub section will reach.
3114 . b dest
3115
3116 ppc_stub_plt_branch:
3117 Similar to the above, but a 24 bit branch in the stub section won't
3118 reach its destination.
87e226ce
AM		 3119 . addis %r12,%r2,xxx@toc@ha
3120 . ld %r11,xxx@toc@l(%r12)
721956f4
AM		 3121 . mtctr %r11
3122 . bctr
3123
3124 ppc_stub_plt_call:
2c66dc6c
AM		 3125 Used to call a function in a shared library. If it so happens that
3126 the plt entry referenced crosses a 64k boundary, then an extra
3127 "addis %r12,%r12,1" will be inserted before the load at xxx+8 or
3128 xxx+16 as appropriate.
87e226ce 3129 . addis %r12,%r2,xxx@toc@ha
721956f4 3130 . std %r2,40(%r1)
87e226ce
AM		 3131 . ld %r11,xxx+0@toc@l(%r12)
3132 . ld %r2,xxx+8@toc@l(%r12)
721956f4 3133 . mtctr %r11
87e226ce 3134 . ld %r11,xxx+16@toc@l(%r12)
721956f4 3135 . bctr
ad8e1ba5
AM		 3136
3137 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3138 code to adjust the value and save r2 to support multiple toc sections.
3139 A ppc_stub_long_branch with an r2 offset looks like:
3140 . std %r2,40(%r1)
3141 . addis %r2,%r2,off@ha
3142 . addi %r2,%r2,off@l
3143 . b dest
3144
3145 A ppc_stub_plt_branch with an r2 offset looks like:
3146 . std %r2,40(%r1)
3147 . addis %r12,%r2,xxx@toc@ha
3148 . ld %r11,xxx@toc@l(%r12)
3149 . addis %r2,%r2,off@ha
3150 . addi %r2,%r2,off@l
3151 . mtctr %r11
3152 . bctr
721956f4
AM		 3153*/
3154
3155enum ppc_stub_type {
3156 ppc_stub_none,
3157 ppc_stub_long_branch,
ad8e1ba5 3158 ppc_stub_long_branch_r2off,
721956f4 3159 ppc_stub_plt_branch,
ad8e1ba5 3160 ppc_stub_plt_branch_r2off,
721956f4
AM		 3161 ppc_stub_plt_call
3162};
3163
3164struct ppc_stub_hash_entry {
3165
3166 /* Base hash table entry structure. */
3167 struct bfd_hash_entry root;
3168
ad8e1ba5
AM		 3169 enum ppc_stub_type stub_type;
3170
721956f4
AM		 3171 /* The stub section. */
3172 asection *stub_sec;
3173
3174 /* Offset within stub_sec of the beginning of this stub. */
3175 bfd_vma stub_offset;
3176
3177 /* Given the symbol's value and its section we can determine its final
3178 value when building the stubs (so the stub knows where to jump. */
3179 bfd_vma target_value;
3180 asection *target_section;
3181
721956f4
AM		 3182 /* The symbol table entry, if any, that this was derived from. */
3183 struct ppc_link_hash_entry *h;
3184
411e1bfb
AM		 3185 /* And the reloc addend that this was derived from. */
3186 bfd_vma addend;
3187
721956f4
AM		 3188 /* Where this stub is being called from, or, in the case of combined
3189 stub sections, the first input section in the group. */
3190 asection *id_sec;
3191};
3192
3193struct ppc_branch_hash_entry {
3194
3195 /* Base hash table entry structure. */
3196 struct bfd_hash_entry root;
3197
c456f082 3198 /* Offset within branch lookup table. */
721956f4
AM		 3199 unsigned int offset;
3200
3201 /* Generation marker. */
3202 unsigned int iter;
3203};
65f38f15
AM		 3204
3205struct ppc_link_hash_entry
3206{
3207 struct elf_link_hash_entry elf;
3208
721956f4
AM		 3209 /* A pointer to the most recently used stub hash entry against this
3210 symbol. */
3211 struct ppc_stub_hash_entry *stub_cache;
3212
65f38f15
AM		 3213 /* Track dynamic relocs copied for this symbol. */
3214 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 3215
721956f4 3216 /* Link between function code and descriptor symbols. */
34814b9f 3217 struct ppc_link_hash_entry *oh;
721956f4 3218
e86ce104
AM		 3219 /* Flag function code and descriptor symbols. */
3220 unsigned int is_func:1;
3221 unsigned int is_func_descriptor:1;
908b32fc 3222 unsigned int fake:1;
411e1bfb 3223
c5614fa4
AM		 3224 /* Whether global opd/toc sym has been adjusted or not.
3225 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3226 should be set for all globals defined in any opd/toc section. */
754021d0
AM		 3227 unsigned int adjust_done:1;
3228
99877b66
AM		 3229 /* Set if we twiddled this symbol to weak at some stage. */
3230 unsigned int was_undefined:1;
3231
411e1bfb 3232 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 3233 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3234 corresponding relocs are encountered during check_relocs.
3235 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3236 indicate the corresponding GOT entry type is not needed.
3237 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3238 a TPREL one. We use a separate flag rather than setting TPREL
3239 just for convenience in distinguishing the two cases. */
3240#define TLS_GD 1 /* GD reloc. */
3241#define TLS_LD 2 /* LD reloc. */
3242#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3243#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3244#define TLS_TLS 16 /* Any TLS reloc. */
3245#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3246#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3247 char tls_mask;
65f38f15
AM		 3248};
3249
3250/* ppc64 ELF linker hash table. */
3251
3252struct ppc_link_hash_table
3253{
3254 struct elf_link_hash_table elf;
3255
721956f4
AM		 3256 /* The stub hash table. */
3257 struct bfd_hash_table stub_hash_table;
3258
3259 /* Another hash table for plt_branch stubs. */
3260 struct bfd_hash_table branch_hash_table;
3261
3262 /* Linker stub bfd. */
3263 bfd *stub_bfd;
3264
3265 /* Linker call-backs. */
4ce794b7
AM		 3266 asection * (*add_stub_section) (const char *, asection *);
3267 void (*layout_sections_again) (void);
721956f4
AM		 3268
3269 /* Array to keep track of which stub sections have been created, and
3270 information on stub grouping. */
3271 struct map_stub {
3272 /* This is the section to which stubs in the group will be attached. */
3273 asection *link_sec;
3274 /* The stub section. */
3275 asection *stub_sec;
ad8e1ba5
AM		 3276 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3277 bfd_vma toc_off;
721956f4
AM		 3278 } *stub_group;
3279
ad8e1ba5
AM		 3280 /* Temp used when calculating TOC pointers. */
3281 bfd_vma toc_curr;
3282
8f3bab57
AM		 3283 /* Highest input section id. */
3284 int top_id;
3285
734b6cf9
AM		 3286 /* Highest output section index. */
3287 int top_index;
3288
3289 /* List of input sections for each output section. */
3290 asection **input_list;
721956f4 3291
65f38f15 3292 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 3293 asection *got;
4ce794b7
AM		 3294 asection *plt;
3295 asection *relplt;
3296 asection *dynbss;
3297 asection *relbss;
3298 asection *glink;
82bd7b59 3299 asection *sfpr;
4ce794b7
AM		 3300 asection *brlt;
3301 asection *relbrlt;
ec338859 3302
8387904d
AM		 3303 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3304 struct ppc_link_hash_entry *tls_get_addr;
3305 struct ppc_link_hash_entry *tls_get_addr_fd;
411e1bfb 3306
9b5ecbd0
AM		 3307 /* Statistics. */
3308 unsigned long stub_count[ppc_stub_plt_call];
3309
ee75fd95
AM		 3310 /* Number of stubs against global syms. */
3311 unsigned long stub_globals;
3312
ad8e1ba5 3313 /* Set if we should emit symbols for stubs. */
99877b66 3314 unsigned int emit_stub_syms:1;
ad8e1ba5 3315
4c52953f
AM		 3316 /* Support for multiple toc sections. */
3317 unsigned int no_multi_toc:1;
3318 unsigned int multi_toc_needed:1;
3319
5d1634d7 3320 /* Set on error. */
99877b66 3321 unsigned int stub_error:1;
721956f4
AM		 3322
3323 /* Flag set when small branches are detected. Used to
3324 select suitable defaults for the stub group size. */
99877b66
AM		 3325 unsigned int has_14bit_branch:1;
3326
3327 /* Temp used by ppc64_elf_check_directives. */
3328 unsigned int twiddled_syms:1;
721956f4
AM		 3329
3330 /* Incremented every time we size stubs. */
3331 unsigned int stub_iteration;
5d1634d7 3332
ec338859
AM		 3333 /* Small local sym to section mapping cache. */
3334 struct sym_sec_cache sym_sec;
65f38f15
AM		 3335};
3336
4c52953f
AM		 3337/* Rename some of the generic section flags to better document how they
3338 are used here. */
3339#define has_toc_reloc has_gp_reloc
3340#define makes_toc_func_call need_finalize_relax
3341#define call_check_in_progress reloc_done
3342
65f38f15
AM		 3343/* Get the ppc64 ELF linker hash table from a link_info structure. */
3344
3345#define ppc_hash_table(p) \
3346 ((struct ppc_link_hash_table *) ((p)->hash))
3347
721956f4
AM		 3348#define ppc_stub_hash_lookup(table, string, create, copy) \
3349 ((struct ppc_stub_hash_entry *) \
3350 bfd_hash_lookup ((table), (string), (create), (copy)))
3351
3352#define ppc_branch_hash_lookup(table, string, create, copy) \
3353 ((struct ppc_branch_hash_entry *) \
3354 bfd_hash_lookup ((table), (string), (create), (copy)))
3355
3356/* Create an entry in the stub hash table. */
3357
3358static struct bfd_hash_entry *
4ce794b7
AM		 3359stub_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_stub_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_stub_hash_entry *eh;
3377
3378 /* Initialize the local fields. */
3379 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 3380 eh->stub_type = ppc_stub_none;
721956f4
AM		 3381 eh->stub_sec = NULL;
3382 eh->stub_offset = 0;
3383 eh->target_value = 0;
3384 eh->target_section = NULL;
721956f4
AM		 3385 eh->h = NULL;
3386 eh->id_sec = NULL;
3387 }
3388
3389 return entry;
3390}
3391
3392/* Create an entry in the branch hash table. */
3393
3394static struct bfd_hash_entry *
4ce794b7
AM		 3395branch_hash_newfunc (struct bfd_hash_entry *entry,
3396 struct bfd_hash_table *table,
3397 const char *string)
721956f4
AM		 3398{
3399 /* Allocate the structure if it has not already been allocated by a
3400 subclass. */
3401 if (entry == NULL)
3402 {
3403 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
3404 if (entry == NULL)
3405 return entry;
3406 }
3407
3408 /* Call the allocation method of the superclass. */
3409 entry = bfd_hash_newfunc (entry, table, string);
3410 if (entry != NULL)
3411 {
3412 struct ppc_branch_hash_entry *eh;
3413
3414 /* Initialize the local fields. */
3415 eh = (struct ppc_branch_hash_entry *) entry;
3416 eh->offset = 0;
3417 eh->iter = 0;
3418 }
3419
3420 return entry;
3421}
3422
65f38f15
AM		 3423/* Create an entry in a ppc64 ELF linker hash table. */
3424
3425static struct bfd_hash_entry *
4ce794b7
AM		 3426link_hash_newfunc (struct bfd_hash_entry *entry,
3427 struct bfd_hash_table *table,
3428 const char *string)
65f38f15
AM		 3429{
3430 /* Allocate the structure if it has not already been allocated by a
3431 subclass. */
3432 if (entry == NULL)
3433 {
3434 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
3435 if (entry == NULL)
3436 return entry;
3437 }
3438
3439 /* Call the allocation method of the superclass. */
3440 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3441 if (entry != NULL)
3442 {
3443 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
3444
908b32fc
AM		 3445 memset (&eh->stub_cache, 0,
3446 (sizeof (struct ppc_link_hash_entry)
3447 - offsetof (struct ppc_link_hash_entry, stub_cache)));
65f38f15
AM		 3448 }
3449
3450 return entry;
3451}
3452
3453/* Create a ppc64 ELF linker hash table. */
3454
3455static struct bfd_link_hash_table *
4ce794b7 3456ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 3457{
3458 struct ppc_link_hash_table *htab;
3459 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
3460
4ce794b7 3461 htab = bfd_zmalloc (amt);
65f38f15
AM		 3462 if (htab == NULL)
3463 return NULL;
3464
3465 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
3466 {
e2d34d7d 3467 free (htab);
65f38f15
AM		 3468 return NULL;
3469 }
3470
721956f4
AM		 3471 /* Init the stub hash table too. */
3472 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
3473 return NULL;
3474
3475 /* And the branch hash table. */
3476 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
3477 return NULL;
3478
3254fd24
AM		 3479 /* Initializing two fields of the union is just cosmetic. We really
3480 only care about glist, but when compiled on a 32-bit host the
3481 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3482 debugger inspection of these fields look nicer. */
a6aa5195
AM		 3483 htab->elf.init_got_refcount.refcount = 0;
3484 htab->elf.init_got_refcount.glist = NULL;
3485 htab->elf.init_plt_refcount.refcount = 0;
3486 htab->elf.init_plt_refcount.glist = NULL;
3487 htab->elf.init_got_offset.offset = 0;
3488 htab->elf.init_got_offset.glist = NULL;
3489 htab->elf.init_plt_offset.offset = 0;
3490 htab->elf.init_plt_offset.glist = NULL;
3254fd24 3491
65f38f15
AM		 3492 return &htab->elf.root;
3493}
3494
721956f4
AM		 3495/* Free the derived linker hash table. */
3496
3497static void
4ce794b7 3498ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM		 3499{
3500 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3501
3502 bfd_hash_table_free (&ret->stub_hash_table);
3503 bfd_hash_table_free (&ret->branch_hash_table);
3504 _bfd_generic_link_hash_table_free (hash);
3505}
3506
e717da7e
AM		 3507/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3508
3509void
3510ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3511{
3512 struct ppc_link_hash_table *htab;
3513
3514 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3515
3516/* Always hook our dynamic sections into the first bfd, which is the
3517 linker created stub bfd. This ensures that the GOT header is at
3518 the start of the output TOC section. */
3519 htab = ppc_hash_table (info);
3520 htab->stub_bfd = abfd;
3521 htab->elf.dynobj = abfd;
3522}
3523
721956f4
AM		 3524/* Build a name for an entry in the stub hash table. */
3525
3526static char *
4ce794b7
AM		 3527ppc_stub_name (const asection *input_section,
3528 const asection *sym_sec,
3529 const struct ppc_link_hash_entry *h,
3530 const Elf_Internal_Rela *rel)
721956f4
AM		 3531{
3532 char *stub_name;
3533 bfd_size_type len;
3534
3535 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3536 offsets from a sym as a branch target? In fact, we could
3537 probably assume the addend is always zero. */
3538 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3539
3540 if (h)
3541 {
3542 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3543 stub_name = bfd_malloc (len);
46de2a7c
AM		 3544 if (stub_name == NULL)
3545 return stub_name;
3546
3547 sprintf (stub_name, "%08x.%s+%x",
3548 input_section->id & 0xffffffff,
3549 h->elf.root.root.string,
3550 (int) rel->r_addend & 0xffffffff);
721956f4
AM		 3551 }
3552 else
3553 {
ad8e1ba5 3554 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4 3555 stub_name = bfd_malloc (len);
46de2a7c
AM		 3556 if (stub_name == NULL)
3557 return stub_name;
3558
3559 sprintf (stub_name, "%08x.%x:%x+%x",
3560 input_section->id & 0xffffffff,
3561 sym_sec->id & 0xffffffff,
3562 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3563 (int) rel->r_addend & 0xffffffff);
721956f4 3564 }
ee75fd95
AM		 3565 if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
3566 stub_name[len - 2] = 0;
721956f4
AM		 3567 return stub_name;
3568}
3569
3570/* Look up an entry in the stub hash. Stub entries are cached because
3571 creating the stub name takes a bit of time. */
3572
3573static struct ppc_stub_hash_entry *
4ce794b7
AM		 3574ppc_get_stub_entry (const asection *input_section,
3575 const asection *sym_sec,
039b3fef 3576 struct ppc_link_hash_entry *h,
4ce794b7
AM		 3577 const Elf_Internal_Rela *rel,
3578 struct ppc_link_hash_table *htab)
721956f4
AM		 3579{
3580 struct ppc_stub_hash_entry *stub_entry;
721956f4
AM		 3581 const asection *id_sec;
3582
3583 /* If this input section is part of a group of sections sharing one
3584 stub section, then use the id of the first section in the group.
3585 Stub names need to include a section id, as there may well be
3586 more than one stub used to reach say, printf, and we need to
3587 distinguish between them. */
3588 id_sec = htab->stub_group[input_section->id].link_sec;
3589
3590 if (h != NULL && h->stub_cache != NULL
3591 && h->stub_cache->h == h
3592 && h->stub_cache->id_sec == id_sec)
3593 {
3594 stub_entry = h->stub_cache;
3595 }
3596 else
3597 {
3598 char *stub_name;
3599
3600 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3601 if (stub_name == NULL)
3602 return NULL;
3603
3604 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3605 stub_name, FALSE, FALSE);
721956f4
AM		 3606 if (h != NULL)
3607 h->stub_cache = stub_entry;
3608
3609 free (stub_name);
3610 }
3611
3612 return stub_entry;
3613}
3614
3615/* Add a new stub entry to the stub hash. Not all fields of the new
3616 stub entry are initialised. */
3617
3618static struct ppc_stub_hash_entry *
4ce794b7
AM		 3619ppc_add_stub (const char *stub_name,
3620 asection *section,
3621 struct ppc_link_hash_table *htab)
721956f4
AM		 3622{
3623 asection *link_sec;
3624 asection *stub_sec;
3625 struct ppc_stub_hash_entry *stub_entry;
3626
3627 link_sec = htab->stub_group[section->id].link_sec;
3628 stub_sec = htab->stub_group[section->id].stub_sec;
3629 if (stub_sec == NULL)
3630 {
3631 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3632 if (stub_sec == NULL)
3633 {
d4c88bbb 3634 size_t namelen;
721956f4
AM		 3635 bfd_size_type len;
3636 char *s_name;
3637
d4c88bbb
AM		 3638 namelen = strlen (link_sec->name);
3639 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM		 3640 s_name = bfd_alloc (htab->stub_bfd, len);
3641 if (s_name == NULL)
3642 return NULL;
3643
d4c88bbb
AM		 3644 memcpy (s_name, link_sec->name, namelen);
3645 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM		 3646 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3647 if (stub_sec == NULL)
3648 return NULL;
3649 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3650 }
3651 htab->stub_group[section->id].stub_sec = stub_sec;
3652 }
3653
3654 /* Enter this entry into the linker stub hash table. */
3655 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3656 TRUE, FALSE);
721956f4
AM		 3657 if (stub_entry == NULL)
3658 {
d003868e
AM		 3659 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
3660 section->owner, stub_name);
721956f4
AM		 3661 return NULL;
3662 }
3663
3664 stub_entry->stub_sec = stub_sec;
3665 stub_entry->stub_offset = 0;
3666 stub_entry->id_sec = link_sec;
3667 return stub_entry;
3668}
3669
82bd7b59
AM		 3670/* Create sections for linker generated code. */
3671
b34976b6 3672static bfd_boolean
4ce794b7 3673create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM		 3674{
3675 struct ppc_link_hash_table *htab;
3676 flagword flags;
3677
3678 htab = ppc_hash_table (info);
3679
3680 /* Create .sfpr for code to save and restore fp regs. */
3681 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3682 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3496cb2a
L		 3683 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
3684 flags);
82bd7b59 3685 if (htab->sfpr == NULL
82bd7b59 3686 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3687 return FALSE;
82bd7b59 3688
721956f4 3689 /* Create .glink for lazy dynamic linking support. */
3496cb2a
L		 3690 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
3691 flags);
4ce794b7 3692 if (htab->glink == NULL
4ce794b7 3693 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
b34976b6 3694 return FALSE;
82bd7b59 3695
c456f082
AM		 3696 /* Create branch lookup table for plt_branch stubs. */
3697 if (info->shared)
3698 {
3699 flags = (SEC_ALLOC | SEC_LOAD
3700 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3701 htab->brlt
3702 = bfd_make_section_anyway_with_flags (dynobj, ".data.rel.ro.brlt",
3703 flags);
3704 }
3705 else
3706 {
3707 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3708 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3709 htab->brlt
3710 = bfd_make_section_anyway_with_flags (dynobj, ".rodata.brlt", flags);
3711 }
3712
4ce794b7 3713 if (htab->brlt == NULL
4ce794b7 3714 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3715 return FALSE;
721956f4 3716
c456f082 3717 if (info->shared)
721956f4
AM		 3718 {
3719 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3720 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
c456f082
AM		 3721 htab->relbrlt
3722 = bfd_make_section_anyway_with_flags (dynobj, ".rela.data.rel.ro.brlt",
3723 flags);
721956f4 3724 }
c456f082
AM		 3725 else if (info->emitrelocations)
3726 {
3727 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3728 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3729 htab->relbrlt
3730 = bfd_make_section_anyway_with_flags (dynobj, ".rela.rodata.brlt",
3731 flags);
3732 }
3733 else
3734 return TRUE;
3735
3736 if (!htab->relbrlt
3737 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
3738 return FALSE;
3739
b34976b6 3740 return TRUE;
82bd7b59
AM		 3741}
3742
e717da7e
AM		 3743/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3744 not already done. */
65f38f15 3745
b34976b6 3746static bfd_boolean
e717da7e 3747create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3748{
e717da7e
AM		 3749 asection *got, *relgot;
3750 flagword flags;
3751 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3752
4ce794b7 3753 if (!htab->got)
e717da7e
AM		 3754 {
3755 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3756 return FALSE;
3757
3758 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3759 if (!htab->got)
3760 abort ();
3761 }
3762
3763 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3764 | SEC_LINKER_CREATED);
3765
c456f082 3766 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
e717da7e 3767 if (!got
e717da7e
AM		 3768 || !bfd_set_section_alignment (abfd, got, 3))
3769 return FALSE;
65f38f15 3770
c456f082
AM		 3771 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
3772 flags | SEC_READONLY);
e717da7e 3773 if (!relgot
e717da7e 3774 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3775 return FALSE;
e717da7e
AM		 3776
3777 ppc64_elf_tdata (abfd)->got = got;
3778 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3779 return TRUE;
65f38f15 3780}
5bd4f169 3781
82bd7b59 3782/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3783
b34976b6 3784static bfd_boolean
4ce794b7 3785ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3786{
65f38f15 3787 struct ppc_link_hash_table *htab;
5bd4f169 3788
65f38f15 3789 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3790 return FALSE;
65f38f15 3791
e717da7e
AM		 3792 htab = ppc_hash_table (info);
3793 if (!htab->got)
3794 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM		 3795 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3796 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3797 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3798 if (!info->shared)
4ce794b7 3799 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3800
e717da7e 3801 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3802 || (!info->shared && !htab->relbss))
65f38f15
AM		 3803 abort ();
3804
b34976b6 3805 return TRUE;
5bd4f169
AM		 3806}
3807
40d16e0b
AM		 3808/* Merge PLT info on FROM with that on TO. */
3809
3810static void
3811move_plt_plist (struct ppc_link_hash_entry *from,
3812 struct ppc_link_hash_entry *to)
3813{
3814 if (from->elf.plt.plist != NULL)
3815 {
3816 if (to->elf.plt.plist != NULL)
3817 {
3818 struct plt_entry **entp;
3819 struct plt_entry *ent;
3820
3821 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
3822 {
3823 struct plt_entry *dent;
3824
3825 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
3826 if (dent->addend == ent->addend)
3827 {
3828 dent->plt.refcount += ent->plt.refcount;
3829 *entp = ent->next;
3830 break;
3831 }
3832 if (dent == NULL)
3833 entp = &ent->next;
3834 }
3835 *entp = to->elf.plt.plist;
3836 }
3837
3838 to->elf.plt.plist = from->elf.plt.plist;
3839 from->elf.plt.plist = NULL;
3840 }
3841}
3842
65f38f15
AM		 3843/* Copy the extra info we tack onto an elf_link_hash_entry. */
3844
3845static void
9c5bfbb7
AM		 3846ppc64_elf_copy_indirect_symbol
3847 (const struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3848 struct elf_link_hash_entry *dir,
3849 struct elf_link_hash_entry *ind)
65f38f15
AM		 3850{
3851 struct ppc_link_hash_entry *edir, *eind;
3852
3853 edir = (struct ppc_link_hash_entry *) dir;
3854 eind = (struct ppc_link_hash_entry *) ind;
3855
411e1bfb 3856 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3857 if (eind->dyn_relocs != NULL)
65f38f15 3858 {
bbd7ec4a
AM		 3859 if (edir->dyn_relocs != NULL)
3860 {
3861 struct ppc_dyn_relocs **pp;
3862 struct ppc_dyn_relocs *p;
3863
411e1bfb 3864 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM		 3865 abort ();
3866
3867 /* Add reloc counts against the weak sym to the strong sym
3868 list. Merge any entries against the same section. */
3869 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3870 {
3871 struct ppc_dyn_relocs *q;
3872
3873 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3874 if (q->sec == p->sec)
3875 {
3876 q->pc_count += p->pc_count;
3877 q->count += p->count;
3878 *pp = p->next;
3879 break;
3880 }
3881 if (q == NULL)
3882 pp = &p->next;
3883 }
3884 *pp = edir->dyn_relocs;
3885 }
3886
65f38f15
AM		 3887 edir->dyn_relocs = eind->dyn_relocs;
3888 eind->dyn_relocs = NULL;
3889 }
65f38f15 3890
6349e628
AM		 3891 edir->is_func |= eind->is_func;
3892 edir->is_func_descriptor |= eind->is_func_descriptor;
58ac9f71 3893 edir->tls_mask |= eind->tls_mask;
6349e628 3894
81848ca0 3895 /* If called to transfer flags for a weakdef during processing
f5385ebf 3896 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
81848ca0 3897 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
f5385ebf
AM		 3898 if (!(ELIMINATE_COPY_RELOCS
3899 && eind->elf.root.type != bfd_link_hash_indirect
3900 && edir->elf.dynamic_adjusted))
3901 edir->elf.non_got_ref |= eind->elf.non_got_ref;
81848ca0 3902
f5385ebf
AM		 3903 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3904 edir->elf.ref_regular |= eind->elf.ref_regular;
3905 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3906 edir->elf.needs_plt |= eind->elf.needs_plt;
6349e628
AM		 3907
3908 /* If we were called to copy over info for a weak sym, that's all. */
3909 if (eind->elf.root.type != bfd_link_hash_indirect)
3910 return;
3911
81848ca0
AM		 3912 /* Copy over got entries that we may have already seen to the
3913 symbol which just became indirect. */
411e1bfb
AM		 3914 if (eind->elf.got.glist != NULL)
3915 {
3916 if (edir->elf.got.glist != NULL)
3917 {
3918 struct got_entry **entp;
3919 struct got_entry *ent;
3920
3921 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3922 {
3923 struct got_entry *dent;
3924
3925 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3926 if (dent->addend == ent->addend
e717da7e 3927 && dent->owner == ent->owner
411e1bfb
AM		 3928 && dent->tls_type == ent->tls_type)
3929 {
3930 dent->got.refcount += ent->got.refcount;
3931 *entp = ent->next;
3932 break;
3933 }
3934 if (dent == NULL)
3935 entp = &ent->next;
3936 }
3937 *entp = edir->elf.got.glist;
3938 }
3939
3940 edir->elf.got.glist = eind->elf.got.glist;
3941 eind->elf.got.glist = NULL;
3942 }
3943
3944 /* And plt entries. */
40d16e0b 3945 move_plt_plist (eind, edir);
411e1bfb 3946
411e1bfb
AM		 3947 if (edir->elf.dynindx == -1)
3948 {
3949 edir->elf.dynindx = eind->elf.dynindx;
3950 edir->elf.dynstr_index = eind->elf.dynstr_index;
3951 eind->elf.dynindx = -1;
3952 eind->elf.dynstr_index = 0;
3953 }
3954 else
3955 BFD_ASSERT (eind->elf.dynindx == -1);
3956}
3957
8387904d
AM		 3958/* Find the function descriptor hash entry from the given function code
3959 hash entry FH. Link the entries via their OH fields. */
3960
3961static struct ppc_link_hash_entry *
3962get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
3963{
3964 struct ppc_link_hash_entry *fdh = fh->oh;
3965
3966 if (fdh == NULL)
3967 {
3968 const char *fd_name = fh->elf.root.root.string + 1;
3969
3970 fdh = (struct ppc_link_hash_entry *)
3971 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
3972 if (fdh != NULL)
3973 {
3974 fdh->is_func_descriptor = 1;
3975 fdh->oh = fh;
3976 fh->is_func = 1;
3977 fh->oh = fdh;
3978 }
3979 }
3980
3981 return fdh;
3982}
3983
bb700d78
AM		 3984/* Make a fake function descriptor sym for the code sym FH. */
3985
3986static struct ppc_link_hash_entry *
3987make_fdh (struct bfd_link_info *info,
908b32fc 3988 struct ppc_link_hash_entry *fh)
bb700d78
AM		 3989{
3990 bfd *abfd;
3991 asymbol *newsym;
3992 struct bfd_link_hash_entry *bh;
3993 struct ppc_link_hash_entry *fdh;
3994
3995 abfd = fh->elf.root.u.undef.abfd;
3996 newsym = bfd_make_empty_symbol (abfd);
3997 newsym->name = fh->elf.root.root.string + 1;
3998 newsym->section = bfd_und_section_ptr;
3999 newsym->value = 0;
908b32fc 4000 newsym->flags = BSF_WEAK;
bb700d78
AM		 4001
4002 bh = NULL;
4003 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4004 newsym->flags, newsym->section,
4005 newsym->value, NULL, FALSE, FALSE,
4006 &bh))
4007 return NULL;
4008
4009 fdh = (struct ppc_link_hash_entry *) bh;
4010 fdh->elf.non_elf = 0;
908b32fc
AM		 4011 fdh->fake = 1;
4012 fdh->is_func_descriptor = 1;
4013 fdh->oh = fh;
4014 fh->is_func = 1;
4015 fh->oh = fdh;
bb700d78
AM		 4016 return fdh;
4017}
4018
8387904d
AM		 4019/* Hacks to support old ABI code.
4020 When making function calls, old ABI code references function entry
4021 points (dot symbols), while new ABI code references the function
4022 descriptor symbol. We need to make any combination of reference and
4023 definition work together, without breaking archive linking.
4024
4025 For a defined function "foo" and an undefined call to "bar":
4026 An old object defines "foo" and ".foo", references ".bar" (possibly
4027 "bar" too).
4028 A new object defines "foo" and references "bar".
4029
4030 A new object thus has no problem with its undefined symbols being
4031 satisfied by definitions in an old object. On the other hand, the
4032 old object won't have ".bar" satisfied by a new object. */
4033
4034/* Fix function descriptor symbols defined in .opd sections to be
4035 function type. */
555cd476
AM		 4036
4037static bfd_boolean
433817dd 4038ppc64_elf_add_symbol_hook (bfd *ibfd,
555cd476
AM		 4039 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4040 Elf_Internal_Sym *isym,
433817dd 4041 const char **name,
555cd476
AM		 4042 flagword *flags ATTRIBUTE_UNUSED,
4043 asection **sec,
4044 bfd_vma *value ATTRIBUTE_UNUSED)
4045{
8843416a
AM		 4046 if (*sec != NULL
4047 && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
555cd476 4048 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
433817dd
AM		 4049
4050 if ((*name)[0] == '.'
4051 && ELF_ST_BIND (isym->st_info) == STB_GLOBAL
4052 && ELF_ST_TYPE (isym->st_info) < STT_SECTION
4053 && is_ppc64_elf_target (ibfd->xvec))
4054 ppc64_elf_tdata (ibfd)->u.has_dotsym = 1;
4055
555cd476
AM		 4056 return TRUE;
4057}
4058
8387904d 4059/* This function makes an old ABI object reference to ".bar" cause the
908b32fc
AM		 4060 inclusion of a new ABI object archive that defines "bar".
4061 NAME is a symbol defined in an archive. Return a symbol in the hash
4062 table that might be satisfied by the archive symbols. */
8387904d
AM		 4063
4064static struct elf_link_hash_entry *
4065ppc64_elf_archive_symbol_lookup (bfd *abfd,
4066 struct bfd_link_info *info,
4067 const char *name)
4068{
4069 struct elf_link_hash_entry *h;
4070 char *dot_name;
4071 size_t len;
4072
4073 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
908b32fc
AM		 4074 if (h != NULL
4075 /* Don't return this sym if it is a fake function descriptor
4076 created by add_symbol_adjust. */
4077 && !(h->root.type == bfd_link_hash_undefweak
4078 && ((struct ppc_link_hash_entry *) h)->fake))
8387904d
AM		 4079 return h;
4080
4081 if (name[0] == '.')
4082 return h;
4083
4084 len = strlen (name);
4085 dot_name = bfd_alloc (abfd, len + 2);
4086 if (dot_name == NULL)
4087 return (struct elf_link_hash_entry *) 0 - 1;
4088 dot_name[0] = '.';
4089 memcpy (dot_name + 1, name, len + 1);
4090 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4091 bfd_release (abfd, dot_name);
4092 return h;
4093}
4094
4095/* This function satisfies all old ABI object references to ".bar" if a
99877b66
AM		 4096 new ABI object defines "bar". Well, at least, undefined dot symbols
4097 are made weak. This stops later archive searches from including an
4098 object if we already have a function descriptor definition. It also
35b0ce59
AM		 4099 prevents the linker complaining about undefined symbols.
4100 We also check and correct mismatched symbol visibility here. The
4101 most restrictive visibility of the function descriptor and the
4102 function entry symbol is used. */
8387904d 4103
bb700d78
AM		 4104struct add_symbol_adjust_data
4105{
4106 struct bfd_link_info *info;
4107 bfd_boolean ok;
4108};
4109
8387904d
AM		 4110static bfd_boolean
4111add_symbol_adjust (struct elf_link_hash_entry *h, void *inf)
4112{
bb700d78 4113 struct add_symbol_adjust_data *data;
8387904d 4114 struct ppc_link_hash_table *htab;
99877b66 4115 struct ppc_link_hash_entry *eh;
8387904d
AM		 4116 struct ppc_link_hash_entry *fdh;
4117
4118 if (h->root.type == bfd_link_hash_indirect)
4119 return TRUE;
4120
4121 if (h->root.type == bfd_link_hash_warning)
4122 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4123
35b0ce59 4124 if (h->root.root.string[0] != '.')
8387904d
AM		 4125 return TRUE;
4126
bb700d78
AM		 4127 data = inf;
4128 htab = ppc_hash_table (data->info);
99877b66
AM		 4129 eh = (struct ppc_link_hash_entry *) h;
4130 fdh = get_fdh (eh, htab);
bb700d78 4131 if (fdh == NULL
c4f68ce3 4132 && !data->info->relocatable
bb700d78
AM		 4133 && (eh->elf.root.type == bfd_link_hash_undefined
4134 || eh->elf.root.type == bfd_link_hash_undefweak)
4135 && eh->elf.ref_regular)
4136 {
4137 /* Make an undefweak function descriptor sym, which is enough to
4138 pull in an --as-needed shared lib, but won't cause link
4139 errors. Archives are handled elsewhere. */
908b32fc 4140 fdh = make_fdh (data->info, eh);
bb700d78
AM		 4141 if (fdh == NULL)
4142 data->ok = FALSE;
4143 else
4144 fdh->elf.ref_regular = 1;
4145 }
e87d886e 4146 else if (fdh != NULL)
8387904d 4147 {
35b0ce59
AM		 4148 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4149 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4150 if (entry_vis < descr_vis)
4151 fdh->elf.other += entry_vis - descr_vis;
4152 else if (entry_vis > descr_vis)
4153 eh->elf.other += descr_vis - entry_vis;
4154
e87d886e
AM		 4155 if ((fdh->elf.root.type == bfd_link_hash_defined
4156 || fdh->elf.root.type == bfd_link_hash_defweak)
4157 && eh->elf.root.type == bfd_link_hash_undefined)
35b0ce59
AM		 4158 {
4159 eh->elf.root.type = bfd_link_hash_undefweak;
4160 eh->was_undefined = 1;
4161 htab->twiddled_syms = 1;
4162 }
8387904d 4163 }
99877b66 4164
8387904d
AM		 4165 return TRUE;
4166}
4167
4168static bfd_boolean
433817dd 4169ppc64_elf_check_directives (bfd *abfd, struct bfd_link_info *info)
8387904d 4170{
99877b66 4171 struct ppc_link_hash_table *htab;
bb700d78 4172 struct add_symbol_adjust_data data;
99877b66 4173
433817dd
AM		 4174 if (!is_ppc64_elf_target (abfd->xvec))
4175 return TRUE;
4176
4177 if (!ppc64_elf_tdata (abfd)->u.has_dotsym)
4178 return TRUE;
4179 ppc64_elf_tdata (abfd)->u.deleted_section = NULL;
4180
99877b66 4181 htab = ppc_hash_table (info);
ee75fd95 4182 if (!is_ppc64_elf_target (htab->elf.root.creator))
35b0ce59
AM		 4183 return TRUE;
4184
bb700d78
AM		 4185 data.info = info;
4186 data.ok = TRUE;
4187 elf_link_hash_traverse (&htab->elf, add_symbol_adjust, &data);
99877b66
AM		 4188
4189 /* We need to fix the undefs list for any syms we have twiddled to
4190 undef_weak. */
4191 if (htab->twiddled_syms)
4192 {
77cfaee6 4193 bfd_link_repair_undef_list (&htab->elf.root);
99877b66
AM		 4194 htab->twiddled_syms = 0;
4195 }
bb700d78 4196 return data.ok;
8387904d
AM		 4197}
4198
411e1bfb 4199static bfd_boolean
4ce794b7
AM		 4200update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
4201 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 4202{
4203 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 4204 char *local_got_tls_masks;
411e1bfb
AM		 4205
4206 if (local_got_ents == NULL)
4207 {
4208 bfd_size_type size = symtab_hdr->sh_info;
4209
e7b938ca 4210 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 4211 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM		 4212 if (local_got_ents == NULL)
4213 return FALSE;
4214 elf_local_got_ents (abfd) = local_got_ents;
4215 }
4216
4217 if ((tls_type & TLS_EXPLICIT) == 0)
4218 {
4219 struct got_entry *ent;
4220
4221 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 4222 if (ent->addend == r_addend
4223 && ent->owner == abfd
4224 && ent->tls_type == tls_type)
411e1bfb
AM		 4225 break;
4226 if (ent == NULL)
4227 {
4228 bfd_size_type amt = sizeof (*ent);
4ce794b7 4229 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 4230 if (ent == NULL)
4231 return FALSE;
4232 ent->next = local_got_ents[r_symndx];
4233 ent->addend = r_addend;
e717da7e 4234 ent->owner = abfd;
411e1bfb
AM		 4235 ent->tls_type = tls_type;
4236 ent->got.refcount = 0;
4237 local_got_ents[r_symndx] = ent;
4238 }
4239 ent->got.refcount += 1;
4240 }
4241
e7b938ca
AM		 4242 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
4243 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 4244 return TRUE;
65f38f15
AM		 4245}
4246
411e1bfb 4247static bfd_boolean
4ce794b7 4248update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 4249{
411e1bfb 4250 struct plt_entry *ent;
1e2f5b6e 4251
411e1bfb
AM		 4252 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
4253 if (ent->addend == addend)
4254 break;
4255 if (ent == NULL)
1e2f5b6e 4256 {
411e1bfb 4257 bfd_size_type amt = sizeof (*ent);
4ce794b7 4258 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 4259 if (ent == NULL)
4260 return FALSE;
4261 ent->next = eh->elf.plt.plist;
4262 ent->addend = addend;
4263 ent->plt.refcount = 0;
4264 eh->elf.plt.plist = ent;
1e2f5b6e 4265 }
411e1bfb 4266 ent->plt.refcount += 1;
f5385ebf 4267 eh->elf.needs_plt = 1;
93f3fa99
AM		 4268 if (eh->elf.root.root.string[0] == '.'
4269 && eh->elf.root.root.string[1] != '\0')
4270 eh->is_func = 1;
b34976b6 4271 return TRUE;
1e2f5b6e
AM		 4272}
4273
5bd4f169 4274/* Look through the relocs for a section during the first phase, and
65f38f15 4275 calculate needed space in the global offset table, procedure
5d1634d7 4276 linkage table, and dynamic reloc sections. */
5bd4f169 4277
b34976b6 4278static bfd_boolean
4ce794b7
AM		 4279ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
4280 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4281{
65f38f15 4282 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4283 Elf_Internal_Shdr *symtab_hdr;
4284 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4285 const Elf_Internal_Rela *rel;
4286 const Elf_Internal_Rela *rel_end;
5bd4f169 4287 asection *sreloc;
1e2f5b6e 4288 asection **opd_sym_map;
5bd4f169 4289
1049f94e 4290 if (info->relocatable)
b34976b6 4291 return TRUE;
5bd4f169 4292
680a3378
AM		 4293 /* Don't do anything special with non-loaded, non-alloced sections.
4294 In particular, any relocs in such sections should not affect GOT
4295 and PLT reference counting (ie. we don't allow them to create GOT
4296 or PLT entries), there's no possibility or desire to optimize TLS
4297 relocs, and there's not much point in propagating relocs to shared
4298 libs that the dynamic linker won't relocate. */
4299 if ((sec->flags & SEC_ALLOC) == 0)
4300 return TRUE;
4301
65f38f15 4302 htab = ppc_hash_table (info);
5bd4f169 4303 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM		 4304
4305 sym_hashes = elf_sym_hashes (abfd);
4306 sym_hashes_end = (sym_hashes
1e2f5b6e
AM		 4307 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
4308 - symtab_hdr->sh_info);
5bd4f169
AM		 4309
4310 sreloc = NULL;
1e2f5b6e
AM		 4311 opd_sym_map = NULL;
4312 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
4313 {
4314 /* Garbage collection needs some extra help with .opd sections.
4315 We don't want to necessarily keep everything referenced by
4316 relocs in .opd, as that would keep all functions. Instead,
4317 if we reference an .opd symbol (a function descriptor), we
4318 want to keep the function code symbol's section. This is
4319 easy for global symbols, but for local syms we need to keep
4320 information about the associated function section. Later, if
4321 edit_opd deletes entries, we'll use this array to adjust
4322 local syms in .opd. */
4323 union opd_info {
4324 asection *func_section;
4325 long entry_adjust;
4326 };
4327 bfd_size_type amt;
4328
3f764659 4329 amt = sec->size * sizeof (union opd_info) / 8;
4ce794b7 4330 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 4331 if (opd_sym_map == NULL)
b34976b6 4332 return FALSE;
f0abc2a1 4333 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 4334 }
5bd4f169 4335
82bd7b59
AM		 4336 if (htab->sfpr == NULL
4337 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 4338 return FALSE;
82bd7b59 4339
5bd4f169
AM		 4340 rel_end = relocs + sec->reloc_count;
4341 for (rel = relocs; rel < rel_end; rel++)
4342 {
4343 unsigned long r_symndx;
4344 struct elf_link_hash_entry *h;
04c9666a 4345 enum elf_ppc64_reloc_type r_type;
411e1bfb 4346 int tls_type = 0;
5bd4f169
AM		 4347
4348 r_symndx = ELF64_R_SYM (rel->r_info);
4349 if (r_symndx < symtab_hdr->sh_info)
4350 h = NULL;
4351 else
973a3492
L		 4352 {
4353 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4354 while (h->root.type == bfd_link_hash_indirect
4355 || h->root.type == bfd_link_hash_warning)
4356 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4357 }
5bd4f169 4358
4ce794b7 4359 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4360 switch (r_type)
5bd4f169 4361 {
411e1bfb
AM		 4362 case R_PPC64_GOT_TLSLD16:
4363 case R_PPC64_GOT_TLSLD16_LO:
4364 case R_PPC64_GOT_TLSLD16_HI:
4365 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4366 ppc64_tlsld_got (abfd)->refcount += 1;
951fd09b 4367 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4368 goto dogottls;
4369
4370 case R_PPC64_GOT_TLSGD16:
4371 case R_PPC64_GOT_TLSGD16_LO:
4372 case R_PPC64_GOT_TLSGD16_HI:
4373 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4374 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4375 goto dogottls;
4376
4377 case R_PPC64_GOT_TPREL16_DS:
4378 case R_PPC64_GOT_TPREL16_LO_DS:
4379 case R_PPC64_GOT_TPREL16_HI:
4380 case R_PPC64_GOT_TPREL16_HA:
4381 if (info->shared)
4382 info->flags |= DF_STATIC_TLS;
4383 tls_type = TLS_TLS | TLS_TPREL;
4384 goto dogottls;
4385
4386 case R_PPC64_GOT_DTPREL16_DS:
4387 case R_PPC64_GOT_DTPREL16_LO_DS:
4388 case R_PPC64_GOT_DTPREL16_HI:
4389 case R_PPC64_GOT_DTPREL16_HA:
4390 tls_type = TLS_TLS | TLS_DTPREL;
4391 dogottls:
4392 sec->has_tls_reloc = 1;
4393 /* Fall thru */
4394
5bd4f169 4395 case R_PPC64_GOT16:
5bd4f169 4396 case R_PPC64_GOT16_DS:
65f38f15
AM		 4397 case R_PPC64_GOT16_HA:
4398 case R_PPC64_GOT16_HI:
4399 case R_PPC64_GOT16_LO:
5bd4f169 4400 case R_PPC64_GOT16_LO_DS:
65f38f15 4401 /* This symbol requires a global offset table entry. */
4c52953f 4402 sec->has_toc_reloc = 1;
e717da7e
AM		 4403 if (ppc64_elf_tdata (abfd)->got == NULL
4404 && !create_got_section (abfd, info))
b34976b6 4405 return FALSE;
5bd4f169
AM		 4406
4407 if (h != NULL)
4408 {
411e1bfb
AM		 4409 struct ppc_link_hash_entry *eh;
4410 struct got_entry *ent;
65f38f15 4411
411e1bfb
AM		 4412 eh = (struct ppc_link_hash_entry *) h;
4413 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
4414 if (ent->addend == rel->r_addend
e717da7e 4415 && ent->owner == abfd
411e1bfb
AM		 4416 && ent->tls_type == tls_type)
4417 break;
4418 if (ent == NULL)
5bd4f169 4419 {
411e1bfb 4420 bfd_size_type amt = sizeof (*ent);
4ce794b7 4421 ent = bfd_alloc (abfd, amt);
411e1bfb 4422 if (ent == NULL)
b34976b6 4423 return FALSE;
411e1bfb
AM		 4424 ent->next = eh->elf.got.glist;
4425 ent->addend = rel->r_addend;
e717da7e 4426 ent->owner = abfd;
411e1bfb
AM		 4427 ent->tls_type = tls_type;
4428 ent->got.refcount = 0;
4429 eh->elf.got.glist = ent;
5bd4f169 4430 }
411e1bfb 4431 ent->got.refcount += 1;
e7b938ca 4432 eh->tls_mask |= tls_type;
5bd4f169 4433 }
411e1bfb
AM		 4434 else
4435 /* This is a global offset table entry for a local symbol. */
4436 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4437 rel->r_addend, tls_type))
4438 return FALSE;
5bd4f169
AM		 4439 break;
4440
5bd4f169 4441 case R_PPC64_PLT16_HA:
65f38f15
AM		 4442 case R_PPC64_PLT16_HI:
4443 case R_PPC64_PLT16_LO:
4444 case R_PPC64_PLT32:
4445 case R_PPC64_PLT64:
5bd4f169 4446 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 4447 actually build the entry in adjust_dynamic_symbol,
4448 because this might be a case of linking PIC code without
4449 linking in any dynamic objects, in which case we don't
4450 need to generate a procedure linkage table after all. */
5bd4f169
AM		 4451 if (h == NULL)
4452 {
4453 /* It does not make sense to have a procedure linkage
3fad3c7c 4454 table entry for a local symbol. */
5bd4f169 4455 bfd_set_error (bfd_error_bad_value);
b34976b6 4456 return FALSE;
5bd4f169 4457 }
411e1bfb
AM		 4458 else
4459 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4460 rel->r_addend))
4461 return FALSE;
5bd4f169
AM		 4462 break;
4463
4464 /* The following relocations don't need to propagate the
4465 relocation if linking a shared object since they are
4466 section relative. */
4467 case R_PPC64_SECTOFF:
4468 case R_PPC64_SECTOFF_LO:
4469 case R_PPC64_SECTOFF_HI:
4470 case R_PPC64_SECTOFF_HA:
4471 case R_PPC64_SECTOFF_DS:
4472 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 4473 case R_PPC64_DTPREL16:
4474 case R_PPC64_DTPREL16_LO:
4475 case R_PPC64_DTPREL16_HI:
4476 case R_PPC64_DTPREL16_HA:
4477 case R_PPC64_DTPREL16_DS:
4478 case R_PPC64_DTPREL16_LO_DS:
4479 case R_PPC64_DTPREL16_HIGHER:
4480 case R_PPC64_DTPREL16_HIGHERA:
4481 case R_PPC64_DTPREL16_HIGHEST:
4482 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 4483 break;
4484
ad8e1ba5
AM		 4485 /* Nor do these. */
4486 case R_PPC64_TOC16:
4487 case R_PPC64_TOC16_LO:
4488 case R_PPC64_TOC16_HI:
4489 case R_PPC64_TOC16_HA:
4490 case R_PPC64_TOC16_DS:
4491 case R_PPC64_TOC16_LO_DS:
4c52953f 4492 sec->has_toc_reloc = 1;
ad8e1ba5
AM		 4493 break;
4494
5bd4f169
AM		 4495 /* This relocation describes the C++ object vtable hierarchy.
4496 Reconstruct it for later use during GC. */
4497 case R_PPC64_GNU_VTINHERIT:
c152c796 4498 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4499 return FALSE;
5bd4f169
AM		 4500 break;
4501
4502 /* This relocation describes which C++ vtable entries are actually
4503 used. Record for later use during GC. */
4504 case R_PPC64_GNU_VTENTRY:
c152c796 4505 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 4506 return FALSE;
5bd4f169
AM		 4507 break;
4508
721956f4
AM		 4509 case R_PPC64_REL14:
4510 case R_PPC64_REL14_BRTAKEN:
4511 case R_PPC64_REL14_BRNTAKEN:
4512 htab->has_14bit_branch = 1;
4513 /* Fall through. */
4514
5d1634d7 4515 case R_PPC64_REL24:
8387904d 4516 if (h != NULL)
5d1634d7
AM		 4517 {
4518 /* We may need a .plt entry if the function this reloc
4519 refers to is in a shared lib. */
411e1bfb
AM		 4520 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4521 rel->r_addend))
4522 return FALSE;
8387904d
AM		 4523 if (h == &htab->tls_get_addr->elf
4524 || h == &htab->tls_get_addr_fd->elf)
411e1bfb 4525 sec->has_tls_reloc = 1;
8387904d
AM		 4526 else if (htab->tls_get_addr == NULL
4527 && !strncmp (h->root.root.string, ".__tls_get_addr", 15)
a48ebf4d
AM		 4528 && (h->root.root.string[15] == 0
4529 || h->root.root.string[15] == '@'))
411e1bfb 4530 {
8387904d
AM		 4531 htab->tls_get_addr = (struct ppc_link_hash_entry *) h;
4532 sec->has_tls_reloc = 1;
4533 }
4534 else if (htab->tls_get_addr_fd == NULL
4535 && !strncmp (h->root.root.string, "__tls_get_addr", 14)
4536 && (h->root.root.string[14] == 0
4537 || h->root.root.string[14] == '@'))
4538 {
4539 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) h;
411e1bfb
AM		 4540 sec->has_tls_reloc = 1;
4541 }
4542 }
4543 break;
4544
4545 case R_PPC64_TPREL64:
4546 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
4547 if (info->shared)
4548 info->flags |= DF_STATIC_TLS;
4549 goto dotlstoc;
4550
4551 case R_PPC64_DTPMOD64:
4552 if (rel + 1 < rel_end
4553 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
4554 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 4555 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 4556 else
951fd09b 4557 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 4558 goto dotlstoc;
4559
4560 case R_PPC64_DTPREL64:
4561 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
4562 if (rel != relocs
4563 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
4564 && rel[-1].r_offset == rel->r_offset - 8)
4565 /* This is the second reloc of a dtpmod, dtprel pair.
4566 Don't mark with TLS_DTPREL. */
4567 goto dodyn;
4568
4569 dotlstoc:
4570 sec->has_tls_reloc = 1;
4571 if (h != NULL)
4572 {
4573 struct ppc_link_hash_entry *eh;
4574 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4575 eh->tls_mask |= tls_type;
411e1bfb
AM		 4576 }
4577 else
4578 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4579 rel->r_addend, tls_type))
4580 return FALSE;
4581
4582 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
4583 {
e7b938ca 4584 /* One extra to simplify get_tls_mask. */
eea6121a 4585 bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1;
4ce794b7 4586 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
411e1bfb
AM		 4587 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
4588 return FALSE;
4589 }
4590 BFD_ASSERT (rel->r_offset % 8 == 0);
4591 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM		 4592
4593 /* Mark the second slot of a GD or LD entry.
4594 -1 to indicate GD and -2 to indicate LD. */
4595 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
4596 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
4597 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
4598 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 4599 goto dodyn;
4600
4601 case R_PPC64_TPREL16:
4602 case R_PPC64_TPREL16_LO:
4603 case R_PPC64_TPREL16_HI:
4604 case R_PPC64_TPREL16_HA:
4605 case R_PPC64_TPREL16_DS:
4606 case R_PPC64_TPREL16_LO_DS:
4607 case R_PPC64_TPREL16_HIGHER:
4608 case R_PPC64_TPREL16_HIGHERA:
4609 case R_PPC64_TPREL16_HIGHEST:
4610 case R_PPC64_TPREL16_HIGHESTA:
4611 if (info->shared)
4612 {
4613 info->flags |= DF_STATIC_TLS;
4614 goto dodyn;
5d1634d7
AM		 4615 }
4616 break;
4617
e86ce104 4618 case R_PPC64_ADDR64:
1e2f5b6e 4619 if (opd_sym_map != NULL
1e2f5b6e 4620 && rel + 1 < rel_end
4ce794b7 4621 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e 4622 {
8387904d
AM		 4623 if (h != NULL)
4624 {
4625 if (h->root.root.string[0] == '.'
4626 && h->root.root.string[1] != 0
4627 && get_fdh ((struct ppc_link_hash_entry *) h, htab))
4628 ;
4629 else
4630 ((struct ppc_link_hash_entry *) h)->is_func = 1;
4631 }
4632 else
4633 {
4634 asection *s;
1e2f5b6e 4635
8387904d
AM		 4636 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
4637 r_symndx);
4638 if (s == NULL)
4639 return FALSE;
4640 else if (s != sec)
3f764659 4641 opd_sym_map[rel->r_offset / 8] = s;
8387904d 4642 }
1e2f5b6e 4643 }
e86ce104
AM		 4644 /* Fall through. */
4645
04c9666a 4646 case R_PPC64_REL30:
5bd4f169 4647 case R_PPC64_REL32:
04c9666a 4648 case R_PPC64_REL64:
65f38f15
AM		 4649 case R_PPC64_ADDR14:
4650 case R_PPC64_ADDR14_BRNTAKEN:
4651 case R_PPC64_ADDR14_BRTAKEN:
4652 case R_PPC64_ADDR16:
4653 case R_PPC64_ADDR16_DS:
4654 case R_PPC64_ADDR16_HA:
4655 case R_PPC64_ADDR16_HI:
4656 case R_PPC64_ADDR16_HIGHER:
4657 case R_PPC64_ADDR16_HIGHERA:
4658 case R_PPC64_ADDR16_HIGHEST:
4659 case R_PPC64_ADDR16_HIGHESTA:
4660 case R_PPC64_ADDR16_LO:
4661 case R_PPC64_ADDR16_LO_DS:
4662 case R_PPC64_ADDR24:
65f38f15 4663 case R_PPC64_ADDR32:
65f38f15
AM		 4664 case R_PPC64_UADDR16:
4665 case R_PPC64_UADDR32:
4666 case R_PPC64_UADDR64:
5bd4f169 4667 case R_PPC64_TOC:
81848ca0
AM		 4668 if (h != NULL && !info->shared)
4669 /* We may need a copy reloc. */
f5385ebf 4670 h->non_got_ref = 1;
81848ca0 4671
41bd81ab 4672 /* Don't propagate .opd relocs. */
1e2f5b6e 4673 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 4674 break;
e86ce104 4675
65f38f15
AM		 4676 /* If we are creating a shared library, and this is a reloc
4677 against a global symbol, or a non PC relative reloc
4678 against a local symbol, then we need to copy the reloc
4679 into the shared library. However, if we are linking with
4680 -Bsymbolic, we do not need to copy a reloc against a
4681 global symbol which is defined in an object we are
4682 including in the link (i.e., DEF_REGULAR is set). At
4683 this point we have not seen all the input files, so it is
4684 possible that DEF_REGULAR is not set now but will be set
4685 later (it is never cleared). In case of a weak definition,
4686 DEF_REGULAR may be cleared later by a strong definition in
4687 a shared library. We account for that possibility below by
f4656909 4688 storing information in the dyn_relocs field of the hash
65f38f15
AM		 4689 table entry. A similar situation occurs when creating
4690 shared libraries and symbol visibility changes render the
4691 symbol local.
4692
4693 If on the other hand, we are creating an executable, we
4694 may need to keep relocations for symbols satisfied by a
4695 dynamic library if we manage to avoid copy relocs for the
4696 symbol. */
411e1bfb 4697 dodyn:
65f38f15 4698 if ((info->shared
411e1bfb 4699 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM		 4700 || (h != NULL
4701 && (! info->symbolic
4702 || h->root.type == bfd_link_hash_defweak
f5385ebf 4703 || !h->def_regular))))
f4656909
AM		 4704 || (ELIMINATE_COPY_RELOCS
4705 && !info->shared
65f38f15
AM		 4706 && h != NULL
4707 && (h->root.type == bfd_link_hash_defweak
f5385ebf 4708 || !h->def_regular)))
5bd4f169 4709 {
ec338859
AM		 4710 struct ppc_dyn_relocs *p;
4711 struct ppc_dyn_relocs **head;
4712
65f38f15
AM		 4713 /* We must copy these reloc types into the output file.
4714 Create a reloc section in dynobj and make room for
4715 this reloc. */
5bd4f169
AM		 4716 if (sreloc == NULL)
4717 {
4718 const char *name;
65f38f15 4719 bfd *dynobj;
5bd4f169
AM		 4720
4721 name = (bfd_elf_string_from_elf_section
4722 (abfd,
4723 elf_elfheader (abfd)->e_shstrndx,
4724 elf_section_data (sec)->rel_hdr.sh_name));
4725 if (name == NULL)
b34976b6 4726 return FALSE;
5bd4f169 4727
65f38f15
AM		 4728 if (strncmp (name, ".rela", 5) != 0
4729 || strcmp (bfd_get_section_name (abfd, sec),
4730 name + 5) != 0)
4731 {
4732 (*_bfd_error_handler)
d003868e
AM		 4733 (_("%B: bad relocation section name `%s\'"),
4734 abfd, name);
5d1634d7 4735 bfd_set_error (bfd_error_bad_value);
65f38f15
AM		 4736 }
4737
65f38f15 4738 dynobj = htab->elf.dynobj;
5bd4f169
AM		 4739 sreloc = bfd_get_section_by_name (dynobj, name);
4740 if (sreloc == NULL)
4741 {
4742 flagword flags;
4743
5bd4f169 4744 flags = (SEC_HAS_CONTENTS | SEC_READONLY
77623a34
AM		 4745 | SEC_IN_MEMORY | SEC_LINKER_CREATED
4746 | SEC_ALLOC | SEC_LOAD);
3496cb2a
L		 4747 sreloc = bfd_make_section_with_flags (dynobj,
4748 name,
4749 flags);
5bd4f169 4750 if (sreloc == NULL
65f38f15 4751 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 4752 return FALSE;
5bd4f169 4753 }
65f38f15 4754 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM		 4755 }
4756
65f38f15
AM		 4757 /* If this is a global symbol, we count the number of
4758 relocations we need for this symbol. */
4759 if (h != NULL)
4760 {
ec338859 4761 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM		 4762 }
4763 else
4764 {
ec338859
AM		 4765 /* Track dynamic relocs needed for local syms too.
4766 We really need local syms available to do this
4767 easily. Oh well. */
4768
4769 asection *s;
4770 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4771 sec, r_symndx);
4772 if (s == NULL)
b34976b6 4773 return FALSE;
ec338859
AM		 4774
4775 head = ((struct ppc_dyn_relocs **)
4776 &elf_section_data (s)->local_dynrel);
65f38f15 4777 }
ec338859
AM		 4778
4779 p = *head;
4780 if (p == NULL || p->sec != sec)
4781 {
4ce794b7 4782 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4783 if (p == NULL)
b34976b6 4784 return FALSE;
ec338859
AM		 4785 p->next = *head;
4786 *head = p;
4787 p->sec = sec;
4788 p->count = 0;
4789 p->pc_count = 0;
4790 }
4791
4792 p->count += 1;
411e1bfb 4793 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4794 p->pc_count += 1;
65f38f15 4795 }
5bd4f169 4796 break;
65f38f15
AM		 4797
4798 default:
96e0dda4 4799 break;
5bd4f169
AM		 4800 }
4801 }
4802
b34976b6 4803 return TRUE;
5bd4f169
AM		 4804}
4805
8387904d
AM		 4806/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
4807 of the code entry point, and its section. */
4808
4809static bfd_vma
4810opd_entry_value (asection *opd_sec,
4811 bfd_vma offset,
4812 asection **code_sec,
4813 bfd_vma *code_off)
4814{
4815 bfd *opd_bfd = opd_sec->owner;
8860955f 4816 Elf_Internal_Rela *relocs;
8387904d 4817 Elf_Internal_Rela *lo, *hi, *look;
645ea6a9 4818 bfd_vma val;
8387904d 4819
4b85d634
AM		 4820 /* No relocs implies we are linking a --just-symbols object. */
4821 if (opd_sec->reloc_count == 0)
4822 {
4823 bfd_vma val;
4824
4825 if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8))
4826 return (bfd_vma) -1;
3b36f7e6 4827
4b85d634
AM		 4828 if (code_sec != NULL)
4829 {
4830 asection *sec, *likely = NULL;
4831 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
4832 if (sec->vma <= val
4833 && (sec->flags & SEC_LOAD) != 0
4834 && (sec->flags & SEC_ALLOC) != 0)
4835 likely = sec;
4836 if (likely != NULL)
4837 {
4838 *code_sec = likely;
4839 if (code_off != NULL)
4840 *code_off = val - likely->vma;
4841 }
4842 }
4843 return val;
4844 }
4845
8860955f
AM		 4846 relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
4847 if (relocs == NULL)
4848 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
645ea6a9 4849
8387904d 4850 /* Go find the opd reloc at the sym address. */
8860955f 4851 lo = relocs;
8387904d
AM		 4852 BFD_ASSERT (lo != NULL);
4853 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
645ea6a9 4854 val = (bfd_vma) -1;
8387904d
AM		 4855 while (lo < hi)
4856 {
4857 look = lo + (hi - lo) / 2;
4858 if (look->r_offset < offset)
4859 lo = look + 1;
4860 else if (look->r_offset > offset)
4861 hi = look;
4862 else
4863 {
4864 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (opd_bfd)->symtab_hdr;
4865 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
4866 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
4867 {
4868 unsigned long symndx = ELF64_R_SYM (look->r_info);
8387904d
AM		 4869 asection *sec;
4870
4871 if (symndx < symtab_hdr->sh_info)
4872 {
4873 Elf_Internal_Sym *sym;
4874
4875 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
4876 if (sym == NULL)
4877 {
4878 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
4879 symtab_hdr->sh_info,
4880 0, NULL, NULL, NULL);
4881 if (sym == NULL)
645ea6a9 4882 break;
8387904d
AM		 4883 symtab_hdr->contents = (bfd_byte *) sym;
4884 }
4885
4886 sym += symndx;
4887 val = sym->st_value;
4888 sec = NULL;
4889 if ((sym->st_shndx != SHN_UNDEF
4890 && sym->st_shndx < SHN_LORESERVE)
4891 || sym->st_shndx > SHN_HIRESERVE)
4892 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
4893 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
4894 }
4895 else
4896 {
4897 struct elf_link_hash_entry **sym_hashes;
4898 struct elf_link_hash_entry *rh;
4899
4900 sym_hashes = elf_sym_hashes (opd_bfd);
4901 rh = sym_hashes[symndx - symtab_hdr->sh_info];
4902 while (rh->root.type == bfd_link_hash_indirect
4903 || rh->root.type == bfd_link_hash_warning)
4904 rh = ((struct elf_link_hash_entry *) rh->root.u.i.link);
4905 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
4906 || rh->root.type == bfd_link_hash_defweak);
4907 val = rh->root.u.def.value;
4908 sec = rh->root.u.def.section;
4909 }
4910 val += look->r_addend;
4911 if (code_off != NULL)
4912 *code_off = val;
4913 if (code_sec != NULL)
4914 *code_sec = sec;
4915 if (sec != NULL && sec->output_section != NULL)
4916 val += sec->output_section->vma + sec->output_offset;
8387904d
AM		 4917 }
4918 break;
4919 }
4920 }
645ea6a9 4921
645ea6a9 4922 return val;
8387904d
AM		 4923}
4924
5bd4f169
AM		 4925/* Return the section that should be marked against GC for a given
4926 relocation. */
4927
4928static asection *
4ce794b7 4929ppc64_elf_gc_mark_hook (asection *sec,
ccfa59ea 4930 struct bfd_link_info *info,
4ce794b7
AM		 4931 Elf_Internal_Rela *rel,
4932 struct elf_link_hash_entry *h,
4933 Elf_Internal_Sym *sym)
5bd4f169 4934{
ccfa59ea
AM		 4935 asection *rsec;
4936
4937 /* First mark all our entry sym sections. */
4938 if (info->gc_sym_list != NULL)
4939 {
4940 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4941 struct bfd_sym_chain *sym = info->gc_sym_list;
4942
4943 info->gc_sym_list = NULL;
4944 do
4945 {
4946 struct ppc_link_hash_entry *eh;
4947
4948 eh = (struct ppc_link_hash_entry *)
4949 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
4950 if (eh == NULL)
4951 continue;
4952 if (eh->elf.root.type != bfd_link_hash_defined
4953 && eh->elf.root.type != bfd_link_hash_defweak)
4954 continue;
4955
c4f68ce3
AM		 4956 if (eh->is_func_descriptor
4957 && (eh->oh->elf.root.type == bfd_link_hash_defined
4958 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea 4959 rsec = eh->oh->elf.root.u.def.section;
8387904d
AM		 4960 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
4961 && opd_entry_value (eh->elf.root.u.def.section,
4962 eh->elf.root.u.def.value,
4963 &rsec, NULL) != (bfd_vma) -1)
4964 ;
ccfa59ea
AM		 4965 else
4966 continue;
4967
4968 if (!rsec->gc_mark)
4969 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4970
4971 rsec = eh->elf.root.u.def.section;
4972 if (!rsec->gc_mark)
4973 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4974
4975 sym = sym->next;
4976 }
4977 while (sym != NULL);
4978 }
4979
4980 /* Syms return NULL if we're marking .opd, so we avoid marking all
4981 function sections, as all functions are referenced in .opd. */
4982 rsec = NULL;
4983 if (get_opd_info (sec) != NULL)
4984 return rsec;
1e2f5b6e 4985
5bd4f169
AM		 4986 if (h != NULL)
4987 {
04c9666a 4988 enum elf_ppc64_reloc_type r_type;
ccfa59ea 4989 struct ppc_link_hash_entry *eh;
a33d1f77 4990
4ce794b7 4991 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4992 switch (r_type)
5bd4f169
AM		 4993 {
4994 case R_PPC64_GNU_VTINHERIT:
4995 case R_PPC64_GNU_VTENTRY:
4996 break;
4997
4998 default:
4999 switch (h->root.type)
5000 {
5001 case bfd_link_hash_defined:
5002 case bfd_link_hash_defweak:
ccfa59ea 5003 eh = (struct ppc_link_hash_entry *) h;
c4f68ce3
AM		 5004 if (eh->oh != NULL
5005 && eh->oh->is_func_descriptor
5006 && (eh->oh->elf.root.type == bfd_link_hash_defined
5007 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea 5008 eh = eh->oh;
1e2f5b6e
AM		 5009
5010 /* Function descriptor syms cause the associated
5011 function code sym section to be marked. */
c4f68ce3
AM		 5012 if (eh->is_func_descriptor
5013 && (eh->oh->elf.root.type == bfd_link_hash_defined
5014 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea
AM		 5015 {
5016 /* They also mark their opd section. */
5017 if (!eh->elf.root.u.def.section->gc_mark)
5018 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
5019 ppc64_elf_gc_mark_hook);
5020
5021 rsec = eh->oh->elf.root.u.def.section;
5022 }
8387904d
AM		 5023 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5024 && opd_entry_value (eh->elf.root.u.def.section,
5025 eh->elf.root.u.def.value,
5026 &rsec, NULL) != (bfd_vma) -1)
5027 {
5028 if (!eh->elf.root.u.def.section->gc_mark)
5029 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
5030 ppc64_elf_gc_mark_hook);
5031 }
ccfa59ea 5032 else
1e2f5b6e
AM		 5033 rsec = h->root.u.def.section;
5034 break;
5bd4f169
AM		 5035
5036 case bfd_link_hash_common:
1e2f5b6e
AM		 5037 rsec = h->root.u.c.p->section;
5038 break;
5bd4f169
AM		 5039
5040 default:
5041 break;
5042 }
5043 }
5044 }
5045 else
5046 {
1e2f5b6e
AM		 5047 asection **opd_sym_section;
5048
5049 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
ccfa59ea 5050 opd_sym_section = get_opd_info (rsec);
1e2f5b6e 5051 if (opd_sym_section != NULL)
ccfa59ea
AM		 5052 {
5053 if (!rsec->gc_mark)
5054 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
5055
b4f4e59f 5056 rsec = opd_sym_section[(sym->st_value + rel->r_addend) / 8];
ccfa59ea 5057 }
5bd4f169
AM		 5058 }
5059
1e2f5b6e 5060 return rsec;
5bd4f169
AM		 5061}
5062
65f38f15
AM		 5063/* Update the .got, .plt. and dynamic reloc reference counts for the
5064 section being removed. */
5bd4f169 5065
b34976b6 5066static bfd_boolean
4ce794b7
AM		 5067ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5068 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 5069{
411e1bfb 5070 struct ppc_link_hash_table *htab;
5bd4f169
AM		 5071 Elf_Internal_Shdr *symtab_hdr;
5072 struct elf_link_hash_entry **sym_hashes;
411e1bfb 5073 struct got_entry **local_got_ents;
5bd4f169 5074 const Elf_Internal_Rela *rel, *relend;
5bd4f169 5075
680a3378
AM		 5076 if ((sec->flags & SEC_ALLOC) == 0)
5077 return TRUE;
5078
ec338859
AM		 5079 elf_section_data (sec)->local_dynrel = NULL;
5080
411e1bfb 5081 htab = ppc_hash_table (info);
5bd4f169
AM		 5082 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5083 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 5084 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 5085
5086 relend = relocs + sec->reloc_count;
5087 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 5088 {
5089 unsigned long r_symndx;
04c9666a 5090 enum elf_ppc64_reloc_type r_type;
58ac9f71 5091 struct elf_link_hash_entry *h = NULL;
411e1bfb 5092 char tls_type = 0;
5bd4f169 5093
a33d1f77 5094 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 5095 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 5096 if (r_symndx >= symtab_hdr->sh_info)
5097 {
5098 struct ppc_link_hash_entry *eh;
5099 struct ppc_dyn_relocs **pp;
5100 struct ppc_dyn_relocs *p;
5101
5102 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3eb128b2
AM		 5103 while (h->root.type == bfd_link_hash_indirect
5104 || h->root.type == bfd_link_hash_warning)
5105 h = (struct elf_link_hash_entry *) h->root.u.i.link;
58ac9f71
AM		 5106 eh = (struct ppc_link_hash_entry *) h;
5107
5108 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5109 if (p->sec == sec)
5110 {
5111 /* Everything must go for SEC. */
5112 *pp = p->next;
5113 break;
5114 }
5115 }
5116
a33d1f77
AM		 5117 switch (r_type)
5118 {
411e1bfb
AM		 5119 case R_PPC64_GOT_TLSLD16:
5120 case R_PPC64_GOT_TLSLD16_LO:
5121 case R_PPC64_GOT_TLSLD16_HI:
5122 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 5123 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 5124 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5125 goto dogot;
5126
5127 case R_PPC64_GOT_TLSGD16:
5128 case R_PPC64_GOT_TLSGD16_LO:
5129 case R_PPC64_GOT_TLSGD16_HI:
5130 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5131 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5132 goto dogot;
5133
5134 case R_PPC64_GOT_TPREL16_DS:
5135 case R_PPC64_GOT_TPREL16_LO_DS:
5136 case R_PPC64_GOT_TPREL16_HI:
5137 case R_PPC64_GOT_TPREL16_HA:
5138 tls_type = TLS_TLS | TLS_TPREL;
5139 goto dogot;
5140
5141 case R_PPC64_GOT_DTPREL16_DS:
5142 case R_PPC64_GOT_DTPREL16_LO_DS:
5143 case R_PPC64_GOT_DTPREL16_HI:
5144 case R_PPC64_GOT_DTPREL16_HA:
5145 tls_type = TLS_TLS | TLS_DTPREL;
5146 goto dogot;
5147
a33d1f77
AM		 5148 case R_PPC64_GOT16:
5149 case R_PPC64_GOT16_DS:
5150 case R_PPC64_GOT16_HA:
5151 case R_PPC64_GOT16_HI:
5152 case R_PPC64_GOT16_LO:
5153 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 5154 dogot:
5155 {
5156 struct got_entry *ent;
5157
58ac9f71
AM		 5158 if (h != NULL)
5159 ent = h->got.glist;
411e1bfb
AM		 5160 else
5161 ent = local_got_ents[r_symndx];
5162
5163 for (; ent != NULL; ent = ent->next)
5164 if (ent->addend == rel->r_addend
e717da7e 5165 && ent->owner == abfd
411e1bfb
AM		 5166 && ent->tls_type == tls_type)
5167 break;
5168 if (ent == NULL)
5169 abort ();
5170 if (ent->got.refcount > 0)
5171 ent->got.refcount -= 1;
5172 }
a33d1f77 5173 break;
65f38f15 5174
a33d1f77
AM		 5175 case R_PPC64_PLT16_HA:
5176 case R_PPC64_PLT16_HI:
5177 case R_PPC64_PLT16_LO:
5178 case R_PPC64_PLT32:
5179 case R_PPC64_PLT64:
721956f4
AM		 5180 case R_PPC64_REL14:
5181 case R_PPC64_REL14_BRNTAKEN:
5182 case R_PPC64_REL14_BRTAKEN:
5d1634d7 5183 case R_PPC64_REL24:
58ac9f71 5184 if (h != NULL)
5d1634d7 5185 {
411e1bfb
AM		 5186 struct plt_entry *ent;
5187
411e1bfb
AM		 5188 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5189 if (ent->addend == rel->r_addend)
5190 break;
5191 if (ent == NULL)
5192 abort ();
5193 if (ent->plt.refcount > 0)
5194 ent->plt.refcount -= 1;
5d1634d7 5195 }
e86ce104 5196 break;
5d1634d7 5197
a33d1f77
AM		 5198 default:
5199 break;
5200 }
5201 }
b34976b6 5202 return TRUE;
5bd4f169
AM		 5203}
5204
deb0e272
AM		 5205/* The maximum size of .sfpr. */
5206#define SFPR_MAX (218*4)
5207
5208struct sfpr_def_parms
5209{
699733f6
AM		 5210 const char name[12];
5211 unsigned char lo, hi;
deb0e272
AM		 5212 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
5213 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
5214};
5215
5216/* Auto-generate _save*, _rest* functions in .sfpr. */
5217
5218static unsigned int
5219sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
5220{
5221 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5222 unsigned int i;
5223 size_t len = strlen (parm->name);
5224 bfd_boolean writing = FALSE;
699733f6 5225 char sym[16];
deb0e272
AM		 5226
5227 memcpy (sym, parm->name, len);
5228 sym[len + 2] = 0;
5229
5230 for (i = parm->lo; i <= parm->hi; i++)
5231 {
5232 struct elf_link_hash_entry *h;
5233
5234 sym[len + 0] = i / 10 + '0';
5235 sym[len + 1] = i % 10 + '0';
5236 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
5237 if (h != NULL
f5385ebf 5238 && !h->def_regular)
deb0e272
AM		 5239 {
5240 h->root.type = bfd_link_hash_defined;
5241 h->root.u.def.section = htab->sfpr;
5242 h->root.u.def.value = htab->sfpr->size;
5243 h->type = STT_FUNC;
f5385ebf 5244 h->def_regular = 1;
deb0e272
AM		 5245 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
5246 writing = TRUE;
5247 if (htab->sfpr->contents == NULL)
5248 {
5249 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
5250 if (htab->sfpr->contents == NULL)
5251 return FALSE;
5252 }
5253 }
5254 if (writing)
5255 {
5256 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
5257 if (i != parm->hi)
5258 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
5259 else
5260 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
5261 htab->sfpr->size = p - htab->sfpr->contents;
5262 }
5263 }
5264
5265 return TRUE;
5266}
5267
5268static bfd_byte *
5269savegpr0 (bfd *abfd, bfd_byte *p, int r)
5270{
5271 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5272 return p + 4;
5273}
5274
5275static bfd_byte *
5276savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
5277{
5278 p = savegpr0 (abfd, p, r);
5279 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5280 p = p + 4;
5281 bfd_put_32 (abfd, BLR, p);
5282 return p + 4;
5283}
5284
5285static bfd_byte *
5286restgpr0 (bfd *abfd, bfd_byte *p, int r)
5287{
5288 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5289 return p + 4;
5290}
5291
5292static bfd_byte *
5293restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
5294{
5295 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5296 p = p + 4;
5297 p = restgpr0 (abfd, p, r);
5298 bfd_put_32 (abfd, MTLR_R0, p);
5299 p = p + 4;
5300 if (r == 29)
5301 {
5302 p = restgpr0 (abfd, p, 30);
5303 p = restgpr0 (abfd, p, 31);
5304 }
5305 bfd_put_32 (abfd, BLR, p);
5306 return p + 4;
5307}
5308
5309static bfd_byte *
5310savegpr1 (bfd *abfd, bfd_byte *p, int r)
5311{
5312 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5313 return p + 4;
5314}
5315
5316static bfd_byte *
5317savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
5318{
5319 p = savegpr1 (abfd, p, r);
5320 bfd_put_32 (abfd, BLR, p);
5321 return p + 4;
5322}
5323
5324static bfd_byte *
5325restgpr1 (bfd *abfd, bfd_byte *p, int r)
5326{
5327 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5328 return p + 4;
5329}
5330
5331static bfd_byte *
5332restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
5333{
5334 p = restgpr1 (abfd, p, r);
5335 bfd_put_32 (abfd, BLR, p);
5336 return p + 4;
5337}
5338
5339static bfd_byte *
5340savefpr (bfd *abfd, bfd_byte *p, int r)
5341{
5342 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5343 return p + 4;
5344}
5345
5346static bfd_byte *
5347savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
5348{
5349 p = savefpr (abfd, p, r);
5350 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5351 p = p + 4;
5352 bfd_put_32 (abfd, BLR, p);
5353 return p + 4;
5354}
5355
5356static bfd_byte *
5357restfpr (bfd *abfd, bfd_byte *p, int r)
5358{
5359 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5360 return p + 4;
5361}
5362
5363static bfd_byte *
5364restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
5365{
5366 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5367 p = p + 4;
5368 p = restfpr (abfd, p, r);
5369 bfd_put_32 (abfd, MTLR_R0, p);
5370 p = p + 4;
5371 if (r == 29)
5372 {
5373 p = restfpr (abfd, p, 30);
5374 p = restfpr (abfd, p, 31);
5375 }
5376 bfd_put_32 (abfd, BLR, p);
5377 return p + 4;
5378}
5379
5380static bfd_byte *
5381savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
5382{
5383 p = savefpr (abfd, p, r);
5384 bfd_put_32 (abfd, BLR, p);
5385 return p + 4;
5386}
5387
5388static bfd_byte *
5389restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
5390{
5391 p = restfpr (abfd, p, r);
5392 bfd_put_32 (abfd, BLR, p);
5393 return p + 4;
5394}
5395
5396static bfd_byte *
5397savevr (bfd *abfd, bfd_byte *p, int r)
5398{
5399 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5400 p = p + 4;
5401 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
5402 return p + 4;
5403}
5404
5405static bfd_byte *
5406savevr_tail (bfd *abfd, bfd_byte *p, int r)
5407{
5408 p = savevr (abfd, p, r);
5409 bfd_put_32 (abfd, BLR, p);
5410 return p + 4;
5411}
5412
5413static bfd_byte *
5414restvr (bfd *abfd, bfd_byte *p, int r)
5415{
5416 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5417 p = p + 4;
5418 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
5419 return p + 4;
5420}
5421
5422static bfd_byte *
5423restvr_tail (bfd *abfd, bfd_byte *p, int r)
5424{
5425 p = restvr (abfd, p, r);
5426 bfd_put_32 (abfd, BLR, p);
5427 return p + 4;
5428}
5429
e86ce104
AM		 5430/* Called via elf_link_hash_traverse to transfer dynamic linking
5431 information on function code symbol entries to their corresponding
5432 function descriptor symbol entries. */
deb0e272 5433
b34976b6 5434static bfd_boolean
4ce794b7 5435func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5436{
e86ce104 5437 struct bfd_link_info *info;
65f38f15 5438 struct ppc_link_hash_table *htab;
411e1bfb 5439 struct plt_entry *ent;
50bc7936
AM		 5440 struct ppc_link_hash_entry *fh;
5441 struct ppc_link_hash_entry *fdh;
5442 bfd_boolean force_local;
5bd4f169 5443
50bc7936
AM		 5444 fh = (struct ppc_link_hash_entry *) h;
5445 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 5446 return TRUE;
e86ce104 5447
50bc7936
AM		 5448 if (fh->elf.root.type == bfd_link_hash_warning)
5449 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 5450
4ce794b7 5451 info = inf;
65f38f15 5452 htab = ppc_hash_table (info);
5bd4f169 5453
c09bdfe5
AM		 5454 /* Resolve undefined references to dot-symbols as the value
5455 in the function descriptor, if we have one in a regular object.
5456 This is to satisfy cases like ".quad .foo". Calls to functions
5457 in dynamic objects are handled elsewhere. */
5458 if (fh->elf.root.type == bfd_link_hash_undefweak
5459 && fh->was_undefined
5460 && (fh->oh->elf.root.type == bfd_link_hash_defined
5461 || fh->oh->elf.root.type == bfd_link_hash_defweak)
5462 && get_opd_info (fh->oh->elf.root.u.def.section) != NULL
5463 && opd_entry_value (fh->oh->elf.root.u.def.section,
5464 fh->oh->elf.root.u.def.value,
5465 &fh->elf.root.u.def.section,
5466 &fh->elf.root.u.def.value) != (bfd_vma) -1)
5467 {
5468 fh->elf.root.type = fh->oh->elf.root.type;
f5385ebf 5469 fh->elf.forced_local = 1;
c09bdfe5
AM		 5470 }
5471
e86ce104
AM		 5472 /* If this is a function code symbol, transfer dynamic linking
5473 information to the function descriptor symbol. */
50bc7936 5474 if (!fh->is_func)
b34976b6 5475 return TRUE;
e86ce104 5476
50bc7936 5477 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 5478 if (ent->plt.refcount > 0)
5479 break;
50bc7936
AM		 5480 if (ent == NULL
5481 || fh->elf.root.root.string[0] != '.'
5482 || fh->elf.root.root.string[1] == '\0')
5483 return TRUE;
5bd4f169 5484
50bc7936
AM		 5485 /* Find the corresponding function descriptor symbol. Create it
5486 as undefined if necessary. */
5bd4f169 5487
50bc7936
AM		 5488 fdh = get_fdh (fh, htab);
5489 if (fdh != NULL)
5490 while (fdh->elf.root.type == bfd_link_hash_indirect
5491 || fdh->elf.root.type == bfd_link_hash_warning)
5492 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 5493
50bc7936
AM		 5494 if (fdh == NULL
5495 && info->shared
5496 && (fh->elf.root.type == bfd_link_hash_undefined
5497 || fh->elf.root.type == bfd_link_hash_undefweak))
5498 {
908b32fc 5499 fdh = make_fdh (info, fh);
bb700d78
AM		 5500 if (fdh == NULL)
5501 return FALSE;
50bc7936 5502 }
648cca2c 5503
908b32fc 5504 /* Fake function descriptors are made undefweak. If the function
433817dd
AM		 5505 code symbol is strong undefined, make the fake sym the same.
5506 If the function code symbol is defined, then force the fake
5507 descriptor local; We can't support overriding of symbols in a
5508 shared library on a fake descriptor. */
908b32fc
AM		 5509
5510 if (fdh != NULL
5511 && fdh->fake
433817dd 5512 && fdh->elf.root.type == bfd_link_hash_undefweak)
908b32fc 5513 {
433817dd
AM		 5514 if (fh->elf.root.type == bfd_link_hash_undefined)
5515 {
5516 fdh->elf.root.type = bfd_link_hash_undefined;
5517 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
5518 }
5519 else if (fh->elf.root.type == bfd_link_hash_defined
5520 || fh->elf.root.type == bfd_link_hash_defweak)
5521 {
5522 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
5523 }
908b32fc
AM		 5524 }
5525
50bc7936 5526 if (fdh != NULL
f5385ebf 5527 && !fdh->elf.forced_local
50bc7936 5528 && (info->shared
f5385ebf
AM		 5529 || fdh->elf.def_dynamic
5530 || fdh->elf.ref_dynamic
50bc7936
AM		 5531 || (fdh->elf.root.type == bfd_link_hash_undefweak
5532 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
5533 {
5534 if (fdh->elf.dynindx == -1)
c152c796 5535 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936 5536 return FALSE;
f5385ebf
AM		 5537 fdh->elf.ref_regular |= fh->elf.ref_regular;
5538 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
5539 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
5540 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
50bc7936 5541 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 5542 {
40d16e0b 5543 move_plt_plist (fh, fdh);
f5385ebf 5544 fdh->elf.needs_plt = 1;
e86ce104 5545 }
50bc7936 5546 fdh->is_func_descriptor = 1;
34814b9f
AM		 5547 fdh->oh = fh;
5548 fh->oh = fdh;
e86ce104
AM		 5549 }
5550
50bc7936
AM		 5551 /* Now that the info is on the function descriptor, clear the
5552 function code sym info. Any function code syms for which we
5553 don't have a definition in a regular file, we force local.
5554 This prevents a shared library from exporting syms that have
5555 been imported from another library. Function code syms that
5556 are really in the library we must leave global to prevent the
5557 linker dragging in a definition from a static library. */
93f3fa99
AM		 5558 force_local = (!fh->elf.def_regular
5559 || fdh == NULL
5560 || !fdh->elf.def_regular
5561 || fdh->elf.forced_local);
50bc7936
AM		 5562 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
5563
b34976b6 5564 return TRUE;
e86ce104 5565}
40b8271b 5566
e86ce104 5567/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 5568 this hook to a) provide some gcc support functions, and b) transfer
5569 dynamic linking information gathered so far on function code symbol
5570 entries, to their corresponding function descriptor symbol entries. */
deb0e272 5571
b34976b6 5572static bfd_boolean
4ce794b7
AM		 5573ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
5574 struct bfd_link_info *info)
e86ce104
AM		 5575{
5576 struct ppc_link_hash_table *htab;
82bd7b59 5577 unsigned int i;
deb0e272
AM		 5578 const struct sfpr_def_parms funcs[] =
5579 {
5580 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
5581 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
5582 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
5583 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
5584 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
5585 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
5586 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
5587 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
5588 { "._savef", 14, 31, savefpr, savefpr1_tail },
5589 { "._restf", 14, 31, restfpr, restfpr1_tail },
5590 { "_savevr_", 20, 31, savevr, savevr_tail },
5591 { "_restvr_", 20, 31, restvr, restvr_tail }
5592 };
e86ce104
AM		 5593
5594 htab = ppc_hash_table (info);
82bd7b59
AM		 5595 if (htab->sfpr == NULL)
5596 /* We don't have any relocs. */
b34976b6 5597 return TRUE;
82bd7b59 5598
deb0e272
AM		 5599 /* Provide any missing _save* and _rest* functions. */
5600 htab->sfpr->size = 0;
5601 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
5602 if (!sfpr_define (info, &funcs[i]))
5603 return FALSE;
82bd7b59 5604
4ce794b7 5605 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 5606
eea6121a 5607 if (htab->sfpr->size == 0)
8423293d 5608 htab->sfpr->flags |= SEC_EXCLUDE;
82bd7b59 5609
b34976b6 5610 return TRUE;
e86ce104
AM		 5611}
5612
5613/* Adjust a symbol defined by a dynamic object and referenced by a
5614 regular object. The current definition is in some section of the
5615 dynamic object, but we're not including those sections. We have to
5616 change the definition to something the rest of the link can
5617 understand. */
5618
b34976b6 5619static bfd_boolean
4ce794b7
AM		 5620ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5621 struct elf_link_hash_entry *h)
e86ce104
AM		 5622{
5623 struct ppc_link_hash_table *htab;
e86ce104
AM		 5624 asection *s;
5625 unsigned int power_of_two;
5626
5627 htab = ppc_hash_table (info);
5628
5629 /* Deal with function syms. */
5630 if (h->type == STT_FUNC
f5385ebf 5631 || h->needs_plt)
e86ce104
AM		 5632 {
5633 /* Clear procedure linkage table information for any symbol that
5634 won't need a .plt entry. */
411e1bfb
AM		 5635 struct plt_entry *ent;
5636 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5637 if (ent->plt.refcount > 0)
5638 break;
8387904d 5639 if (ent == NULL
9c7a29a3
AM		 5640 || SYMBOL_CALLS_LOCAL (info, h)
5641 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5642 && h->root.type == bfd_link_hash_undefweak))
40b8271b 5643 {
411e1bfb 5644 h->plt.plist = NULL;
f5385ebf 5645 h->needs_plt = 0;
40b8271b 5646 }
5bd4f169 5647 }
bbd7ec4a 5648 else
411e1bfb 5649 h->plt.plist = NULL;
5bd4f169
AM		 5650
5651 /* If this is a weak symbol, and there is a real definition, the
5652 processor independent code will have arranged for us to see the
5653 real definition first, and we can just use the same value. */
f6e332e6 5654 if (h->u.weakdef != NULL)
5bd4f169 5655 {
f6e332e6
AM		 5656 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5657 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5658 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5659 h->root.u.def.value = h->u.weakdef->root.u.def.value;
a23b6845 5660 if (ELIMINATE_COPY_RELOCS)
f6e332e6 5661 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 5662 return TRUE;
5bd4f169
AM		 5663 }
5664
5bd4f169
AM		 5665 /* If we are creating a shared library, we must presume that the
5666 only references to the symbol are via the global offset table.
5667 For such cases we need not do anything here; the relocations will
5668 be handled correctly by relocate_section. */
5669 if (info->shared)
b34976b6 5670 return TRUE;
5bd4f169 5671
65f38f15
AM		 5672 /* If there are no references to this symbol that do not use the
5673 GOT, we don't need to generate a copy reloc. */
f5385ebf 5674 if (!h->non_got_ref)
b34976b6 5675 return TRUE;
65f38f15 5676
f4656909 5677 if (ELIMINATE_COPY_RELOCS)
65f38f15 5678 {
f4656909
AM		 5679 struct ppc_link_hash_entry * eh;
5680 struct ppc_dyn_relocs *p;
65f38f15 5681
f4656909
AM		 5682 eh = (struct ppc_link_hash_entry *) h;
5683 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5684 {
5685 s = p->sec->output_section;
5686 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5687 break;
5688 }
5689
5690 /* If we didn't find any dynamic relocs in read-only sections, then
5691 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5692 if (p == NULL)
5693 {
f5385ebf 5694 h->non_got_ref = 0;
f4656909
AM		 5695 return TRUE;
5696 }
65f38f15
AM		 5697 }
5698
5d35169e 5699 if (h->plt.plist != NULL)
97b639ba
AM		 5700 {
5701 /* We should never get here, but unfortunately there are versions
5702 of gcc out there that improperly (for this ABI) put initialized
5703 function pointers, vtable refs and suchlike in read-only
5704 sections. Allow them to proceed, but warn that this might
5705 break at runtime. */
5706 (*_bfd_error_handler)
5707 (_("copy reloc against `%s' requires lazy plt linking; "
5708 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
5709 h->root.root.string);
5710 }
5d35169e
AM		 5711
5712 /* This is a reference to a symbol defined by a dynamic object which
5713 is not a function. */
5714
909272ee
AM		 5715 if (h->size == 0)
5716 {
5717 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
5718 h->root.root.string);
5719 return TRUE;
5720 }
5721
5bd4f169
AM		 5722 /* We must allocate the symbol in our .dynbss section, which will
5723 become part of the .bss section of the executable. There will be
5724 an entry for this symbol in the .dynsym section. The dynamic
5725 object will contain position independent code, so all references
5726 from the dynamic object to this symbol will go through the global
5727 offset table. The dynamic linker will use the .dynsym entry to
5728 determine the address it must put in the global offset table, so
5729 both the dynamic object and the regular object will refer to the
5730 same memory location for the variable. */
5bd4f169 5731
04c9666a
AM		 5732 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
5733 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 5734 runtime process image. We need to remember the offset into the
5735 .rela.bss section we are going to use. */
5736 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5737 {
eea6121a 5738 htab->relbss->size += sizeof (Elf64_External_Rela);
f5385ebf 5739 h->needs_copy = 1;
5bd4f169
AM		 5740 }
5741
5742 /* We need to figure out the alignment required for this symbol. I
5743 have no idea how ELF linkers handle this. */
5744 power_of_two = bfd_log2 (h->size);
5745 if (power_of_two > 4)
5746 power_of_two = 4;
5747
5748 /* Apply the required alignment. */
4ce794b7 5749 s = htab->dynbss;
eea6121a 5750 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
65f38f15 5751 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 5752 {
65f38f15 5753 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 5754 return FALSE;
5bd4f169
AM		 5755 }
5756
5757 /* Define the symbol as being at this point in the section. */
5758 h->root.u.def.section = s;
eea6121a 5759 h->root.u.def.value = s->size;
5bd4f169
AM		 5760
5761 /* Increment the section size to make room for the symbol. */
eea6121a 5762 s->size += h->size;
5bd4f169 5763
b34976b6 5764 return TRUE;
5bd4f169
AM		 5765}
5766
e86ce104
AM		 5767/* If given a function descriptor symbol, hide both the function code
5768 sym and the descriptor. */
5769static void
4ce794b7
AM		 5770ppc64_elf_hide_symbol (struct bfd_link_info *info,
5771 struct elf_link_hash_entry *h,
5772 bfd_boolean force_local)
e86ce104 5773{
34814b9f 5774 struct ppc_link_hash_entry *eh;
e86ce104
AM		 5775 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
5776
34814b9f
AM		 5777 eh = (struct ppc_link_hash_entry *) h;
5778 if (eh->is_func_descriptor)
e86ce104 5779 {
34814b9f 5780 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 5781
721956f4 5782 if (fh == NULL)
d1329ca3
AM		 5783 {
5784 const char *p, *q;
5785 struct ppc_link_hash_table *htab;
5786 char save;
5787
5788 /* We aren't supposed to use alloca in BFD because on
5789 systems which do not have alloca the version in libiberty
5790 calls xmalloc, which might cause the program to crash
5791 when it runs out of memory. This function doesn't have a
5792 return status, so there's no way to gracefully return an
5793 error. So cheat. We know that string[-1] can be safely
34814b9f
AM		 5794 accessed; It's either a string in an ELF string table,
5795 or allocated in an objalloc structure. */
d1329ca3 5796
34814b9f 5797 p = eh->elf.root.root.string - 1;
d1329ca3
AM		 5798 save = *p;
5799 *(char *) p = '.';
5800 htab = ppc_hash_table (info);
34814b9f
AM		 5801 fh = (struct ppc_link_hash_entry *)
5802 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5803 *(char *) p = save;
5804
5805 /* Unfortunately, if it so happens that the string we were
5806 looking for was allocated immediately before this string,
5807 then we overwrote the string terminator. That's the only
5808 reason the lookup should fail. */
5809 if (fh == NULL)
5810 {
34814b9f
AM		 5811 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
5812 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 5813 --q, --p;
34814b9f
AM		 5814 if (q < eh->elf.root.root.string && *p == '.')
5815 fh = (struct ppc_link_hash_entry *)
5816 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5817 }
5818 if (fh != NULL)
5819 {
34814b9f
AM		 5820 eh->oh = fh;
5821 fh->oh = eh;
d1329ca3
AM		 5822 }
5823 }
e86ce104 5824 if (fh != NULL)
34814b9f 5825 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM		 5826 }
5827}
5828
411e1bfb 5829static bfd_boolean
8843416a
AM		 5830get_sym_h (struct elf_link_hash_entry **hp,
5831 Elf_Internal_Sym **symp,
5832 asection **symsecp,
5833 char **tls_maskp,
5834 Elf_Internal_Sym **locsymsp,
5835 unsigned long r_symndx,
5836 bfd *ibfd)
411e1bfb
AM		 5837{
5838 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5839
5840 if (r_symndx >= symtab_hdr->sh_info)
5841 {
5842 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5843 struct elf_link_hash_entry *h;
5844
5845 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5846 while (h->root.type == bfd_link_hash_indirect
5847 || h->root.type == bfd_link_hash_warning)
5848 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5849
5850 if (hp != NULL)
5851 *hp = h;
5852
5853 if (symp != NULL)
5854 *symp = NULL;
5855
5856 if (symsecp != NULL)
5857 {
5858 asection *symsec = NULL;
5859 if (h->root.type == bfd_link_hash_defined
5860 || h->root.type == bfd_link_hash_defweak)
5861 symsec = h->root.u.def.section;
5862 *symsecp = symsec;
5863 }
5864
e7b938ca 5865 if (tls_maskp != NULL)
411e1bfb
AM		 5866 {
5867 struct ppc_link_hash_entry *eh;
5868
5869 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 5870 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 5871 }
5872 }
5873 else
5874 {
5875 Elf_Internal_Sym *sym;
5876 Elf_Internal_Sym *locsyms = *locsymsp;
5877
5878 if (locsyms == NULL)
5879 {
5880 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5881 if (locsyms == NULL)
5882 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5883 symtab_hdr->sh_info,
5884 0, NULL, NULL, NULL);
5885 if (locsyms == NULL)
5886 return FALSE;
5887 *locsymsp = locsyms;
5888 }
5889 sym = locsyms + r_symndx;
5890
5891 if (hp != NULL)
5892 *hp = NULL;
5893
5894 if (symp != NULL)
5895 *symp = sym;
5896
5897 if (symsecp != NULL)
5898 {
5899 asection *symsec = NULL;
5900 if ((sym->st_shndx != SHN_UNDEF
5901 && sym->st_shndx < SHN_LORESERVE)
5902 || sym->st_shndx > SHN_HIRESERVE)
5903 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
5904 *symsecp = symsec;
5905 }
5906
e7b938ca 5907 if (tls_maskp != NULL)
411e1bfb
AM		 5908 {
5909 struct got_entry **lgot_ents;
e7b938ca 5910 char *tls_mask;
411e1bfb 5911
e7b938ca 5912 tls_mask = NULL;
411e1bfb
AM		 5913 lgot_ents = elf_local_got_ents (ibfd);
5914 if (lgot_ents != NULL)
5915 {
e7b938ca
AM		 5916 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
5917 tls_mask = &lgot_masks[r_symndx];
411e1bfb 5918 }
e7b938ca 5919 *tls_maskp = tls_mask;
411e1bfb
AM		 5920 }
5921 }
5922 return TRUE;
5923}
5924
e7b938ca 5925/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 5926 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 5927 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 5928
5929static int
0d4792f7
AM		 5930get_tls_mask (char **tls_maskp, unsigned long *toc_symndx,
5931 Elf_Internal_Sym **locsymsp,
4ce794b7 5932 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 5933{
5934 unsigned long r_symndx;
0d4792f7 5935 int next_r;
411e1bfb
AM		 5936 struct elf_link_hash_entry *h;
5937 Elf_Internal_Sym *sym;
5938 asection *sec;
5939 bfd_vma off;
5940
5941 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5942 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 5943 return 0;
411e1bfb 5944
e7b938ca 5945 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM		 5946 || sec == NULL
5947 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 5948 return 1;
411e1bfb
AM		 5949
5950 /* Look inside a TOC section too. */
5951 if (h != NULL)
5952 {
5953 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5954 off = h->root.u.def.value;
5955 }
5956 else
5957 off = sym->st_value;
5958 off += rel->r_addend;
5959 BFD_ASSERT (off % 8 == 0);
5960 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 5961 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 5962 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 5963 return 0;
0d4792f7
AM		 5964 if (toc_symndx != NULL)
5965 *toc_symndx = r_symndx;
5966 if ((h == NULL
5967 || ((h->root.type == bfd_link_hash_defined
5968 || h->root.type == bfd_link_hash_defweak)
f5385ebf 5969 && !h->def_dynamic))
0d4792f7
AM		 5970 && (next_r == -1 || next_r == -2))
5971 return 1 - next_r;
951fd09b 5972 return 1;
411e1bfb
AM		 5973}
5974
754021d0 5975/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 5976 code for the old ABI, these will already have been done. */
754021d0
AM		 5977
5978static bfd_boolean
5979adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
5980{
5981 struct ppc_link_hash_entry *eh;
5982 asection *sym_sec;
5983 long *opd_adjust;
5984
5985 if (h->root.type == bfd_link_hash_indirect)
5986 return TRUE;
5987
5988 if (h->root.type == bfd_link_hash_warning)
5989 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5990
5991 if (h->root.type != bfd_link_hash_defined
5992 && h->root.type != bfd_link_hash_defweak)
5993 return TRUE;
5994
5995 eh = (struct ppc_link_hash_entry *) h;
5996 if (eh->adjust_done)
5997 return TRUE;
5998
5999 sym_sec = eh->elf.root.u.def.section;
4025353c
AM		 6000 opd_adjust = get_opd_info (sym_sec);
6001 if (opd_adjust != NULL)
754021d0 6002 {
3f764659 6003 long adjust = opd_adjust[eh->elf.root.u.def.value / 8];
4025353c
AM		 6004 if (adjust == -1)
6005 {
6006 /* This entry has been deleted. */
433817dd 6007 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->u.deleted_section;
81688140
AM		 6008 if (dsec == NULL)
6009 {
6010 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
6011 if (elf_discarded_section (dsec))
6012 {
433817dd 6013 ppc64_elf_tdata (sym_sec->owner)->u.deleted_section = dsec;
81688140
AM		 6014 break;
6015 }
6016 }
4025353c 6017 eh->elf.root.u.def.value = 0;
81688140 6018 eh->elf.root.u.def.section = dsec;
4025353c
AM		 6019 }
6020 else
6021 eh->elf.root.u.def.value += adjust;
754021d0
AM		 6022 eh->adjust_done = 1;
6023 }
6024 return TRUE;
6025}
6026
8c1d1bb8
AM		 6027/* Handles decrementing dynamic reloc counts for the reloc specified by
6028 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC
6029 have already been determined. */
6030
6031static bfd_boolean
6032dec_dynrel_count (bfd_vma r_info,
6033 asection *sec,
6034 struct bfd_link_info *info,
6035 Elf_Internal_Sym **local_syms,
6036 struct elf_link_hash_entry *h,
6037 asection *sym_sec)
6038{
6039 enum elf_ppc64_reloc_type r_type;
6040 struct ppc_dyn_relocs *p;
6041 struct ppc_dyn_relocs **pp;
6042
6043 /* Can this reloc be dynamic? This switch, and later tests here
6044 should be kept in sync with the code in check_relocs. */
6045 r_type = ELF64_R_TYPE (r_info);
6046 switch (r_type)
6047 {
6048 default:
6049 return TRUE;
6050
6051 case R_PPC64_TPREL16:
6052 case R_PPC64_TPREL16_LO:
6053 case R_PPC64_TPREL16_HI:
6054 case R_PPC64_TPREL16_HA:
6055 case R_PPC64_TPREL16_DS:
6056 case R_PPC64_TPREL16_LO_DS:
6057 case R_PPC64_TPREL16_HIGHER:
6058 case R_PPC64_TPREL16_HIGHERA:
6059 case R_PPC64_TPREL16_HIGHEST:
6060 case R_PPC64_TPREL16_HIGHESTA:
6061 if (!info->shared)
6062 return TRUE;
6063
6064 case R_PPC64_TPREL64:
6065 case R_PPC64_DTPMOD64:
6066 case R_PPC64_DTPREL64:
6067 case R_PPC64_ADDR64:
6068 case R_PPC64_REL30:
6069 case R_PPC64_REL32:
6070 case R_PPC64_REL64:
6071 case R_PPC64_ADDR14:
6072 case R_PPC64_ADDR14_BRNTAKEN:
6073 case R_PPC64_ADDR14_BRTAKEN:
6074 case R_PPC64_ADDR16:
6075 case R_PPC64_ADDR16_DS:
6076 case R_PPC64_ADDR16_HA:
6077 case R_PPC64_ADDR16_HI:
6078 case R_PPC64_ADDR16_HIGHER:
6079 case R_PPC64_ADDR16_HIGHERA:
6080 case R_PPC64_ADDR16_HIGHEST:
6081 case R_PPC64_ADDR16_HIGHESTA:
6082 case R_PPC64_ADDR16_LO:
6083 case R_PPC64_ADDR16_LO_DS:
6084 case R_PPC64_ADDR24:
6085 case R_PPC64_ADDR32:
6086 case R_PPC64_UADDR16:
6087 case R_PPC64_UADDR32:
6088 case R_PPC64_UADDR64:
6089 case R_PPC64_TOC:
6090 break;
6091 }
6092
6093 if (local_syms != NULL)
6094 {
6095 unsigned long r_symndx;
6096 Elf_Internal_Sym *sym;
6097 bfd *ibfd = sec->owner;
6098
6099 r_symndx = ELF64_R_SYM (r_info);
6100 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
6101 return FALSE;
6102 }
6103
6104 if ((info->shared
6105 && (MUST_BE_DYN_RELOC (r_type)
6106 || (h != NULL
6107 && (!info->symbolic
6108 || h->root.type == bfd_link_hash_defweak
6109 || !h->def_regular))))
6110 || (ELIMINATE_COPY_RELOCS
6111 && !info->shared
6112 && h != NULL
6113 && (h->root.type == bfd_link_hash_defweak
6114 || !h->def_regular)))
6115 ;
6116 else
6117 return TRUE;
6118
6119 if (h != NULL)
6120 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
6121 else if (sym_sec != NULL)
6122 pp = (struct ppc_dyn_relocs **) &elf_section_data (sym_sec)->local_dynrel;
6123 else
6124 pp = (struct ppc_dyn_relocs **) &elf_section_data (sec)->local_dynrel;
6125
6126 while ((p = *pp) != NULL)
6127 {
6128 if (p->sec == sec)
6129 {
6130 if (!MUST_BE_DYN_RELOC (r_type))
6131 p->pc_count -= 1;
6132 p->count -= 1;
6133 if (p->count == 0)
6134 *pp = p->next;
6135 return TRUE;
6136 }
6137 pp = &p->next;
6138 }
6139
6140 (*_bfd_error_handler) (_("dynreloc miscount for %B, section %A"),
6141 sec->owner, sec);
6142 bfd_set_error (bfd_error_bad_value);
6143 return FALSE;
6144}
6145
754021d0
AM		 6146/* Remove unused Official Procedure Descriptor entries. Currently we
6147 only remove those associated with functions in discarded link-once
6148 sections, or weakly defined functions that have been overridden. It
6149 would be possible to remove many more entries for statically linked
6150 applications. */
6151
b34976b6 6152bfd_boolean
3f764659 6153ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info,
b4f4e59f 6154 bfd_boolean no_opd_opt,
3f764659 6155 bfd_boolean non_overlapping)
1e2f5b6e
AM		 6156{
6157 bfd *ibfd;
754021d0 6158 bfd_boolean some_edited = FALSE;
3f764659 6159 asection *need_pad = NULL;
1e2f5b6e 6160
411e1bfb 6161 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 6162 {
6163 asection *sec;
6164 Elf_Internal_Rela *relstart, *rel, *relend;
6165 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 6166 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 6167 struct elf_link_hash_entry **sym_hashes;
6168 bfd_vma offset;
d6fe2dc1 6169 bfd_size_type amt;
4025353c 6170 long *opd_adjust;
3f764659
JJ		 6171 bfd_boolean need_edit, add_aux_fields;
6172 bfd_size_type cnt_16b = 0;
1e2f5b6e
AM		 6173
6174 sec = bfd_get_section_by_name (ibfd, ".opd");
46de2a7c 6175 if (sec == NULL || sec->size == 0)
1e2f5b6e
AM		 6176 continue;
6177
3f764659 6178 amt = sec->size * sizeof (long) / 8;
4025353c
AM		 6179 opd_adjust = get_opd_info (sec);
6180 if (opd_adjust == NULL)
d6fe2dc1 6181 {
4b85d634
AM		 6182 /* check_relocs hasn't been called. Must be a ld -r link
6183 or --just-symbols object. */
b4f4e59f 6184 opd_adjust = bfd_alloc (obfd, amt);
46de2a7c
AM		 6185 if (opd_adjust == NULL)
6186 return FALSE;
4025353c 6187 ppc64_elf_section_data (sec)->opd.adjust = opd_adjust;
d6fe2dc1 6188 }
4025353c 6189 memset (opd_adjust, 0, amt);
1e2f5b6e 6190
b4f4e59f
AM		 6191 if (no_opd_opt)
6192 continue;
6193
4b85d634
AM		 6194 if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS)
6195 continue;
6196
1e2f5b6e
AM		 6197 if (sec->output_section == bfd_abs_section_ptr)
6198 continue;
6199
6200 /* Look through the section relocs. */
6201 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
6202 continue;
6203
6cdc0ccc 6204 local_syms = NULL;
1e2f5b6e
AM		 6205 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6206 sym_hashes = elf_sym_hashes (ibfd);
6207
6208 /* Read the relocations. */
4ce794b7 6209 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6210 info->keep_memory);
1e2f5b6e 6211 if (relstart == NULL)
b34976b6 6212 return FALSE;
1e2f5b6e
AM		 6213
6214 /* First run through the relocs to check they are sane, and to
6215 determine whether we need to edit this opd section. */
b34976b6 6216 need_edit = FALSE;
3f764659 6217 need_pad = sec;
1e2f5b6e
AM		 6218 offset = 0;
6219 relend = relstart + sec->reloc_count;
50bc7936 6220 for (rel = relstart; rel < relend; )
1e2f5b6e 6221 {
04c9666a 6222 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 6223 unsigned long r_symndx;
6224 asection *sym_sec;
6225 struct elf_link_hash_entry *h;
6226 Elf_Internal_Sym *sym;
6227
3f764659 6228 /* .opd contains a regular array of 16 or 24 byte entries. We're
1e2f5b6e
AM		 6229 only interested in the reloc pointing to a function entry
6230 point. */
50bc7936
AM		 6231 if (rel->r_offset != offset
6232 || rel + 1 >= relend
6233 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM		 6234 {
6235 /* If someone messes with .opd alignment then after a
6236 "ld -r" we might have padding in the middle of .opd.
6237 Also, there's nothing to prevent someone putting
6238 something silly in .opd with the assembler. No .opd
b34976b6 6239 optimization for them! */
3f764659 6240 broken_opd:
1e2f5b6e 6241 (*_bfd_error_handler)
d003868e 6242 (_("%B: .opd is not a regular array of opd entries"), ibfd);
b34976b6 6243 need_edit = FALSE;
1e2f5b6e
AM		 6244 break;
6245 }
6246
50bc7936
AM		 6247 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
6248 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
6249 {
6250 (*_bfd_error_handler)
d003868e
AM		 6251 (_("%B: unexpected reloc type %u in .opd section"),
6252 ibfd, r_type);
50bc7936
AM		 6253 need_edit = FALSE;
6254 break;
6255 }
6256
1e2f5b6e 6257 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 6258 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6259 r_symndx, ibfd))
50bc7936 6260 goto error_ret;
1e2f5b6e
AM		 6261
6262 if (sym_sec == NULL || sym_sec->owner == NULL)
6263 {
411e1bfb
AM		 6264 const char *sym_name;
6265 if (h != NULL)
6266 sym_name = h->root.root.string;
6267 else
26c61ae5
L		 6268 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
6269 sym_sec);
411e1bfb 6270
1e2f5b6e 6271 (*_bfd_error_handler)
d003868e
AM		 6272 (_("%B: undefined sym `%s' in .opd section"),
6273 ibfd, sym_name);
b34976b6 6274 need_edit = FALSE;
1e2f5b6e
AM		 6275 break;
6276 }
6277
51020317
AM		 6278 /* opd entries are always for functions defined in the
6279 current input bfd. If the symbol isn't defined in the
6280 input bfd, then we won't be using the function in this
6281 bfd; It must be defined in a linkonce section in another
6282 bfd, or is weak. It's also possible that we are
6283 discarding the function due to a linker script /DISCARD/,
6284 which we test for via the output_section. */
6285 if (sym_sec->owner != ibfd
6286 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 6287 need_edit = TRUE;
1e2f5b6e 6288
50bc7936 6289 rel += 2;
3f764659
JJ		 6290 if (rel == relend
6291 || (rel + 1 == relend && rel->r_offset == offset + 16))
6292 {
6293 if (sec->size == offset + 24)
6294 {
6295 need_pad = NULL;
6296 break;
6297 }
6298 if (rel == relend && sec->size == offset + 16)
6299 {
6300 cnt_16b++;
6301 break;
6302 }
6303 goto broken_opd;
6304 }
6305
6306 if (rel->r_offset == offset + 24)
6307 offset += 24;
6308 else if (rel->r_offset != offset + 16)
6309 goto broken_opd;
6310 else if (rel + 1 < relend
6311 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
6312 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
6313 {
6314 offset += 16;
6315 cnt_16b++;
6316 }
6317 else if (rel + 2 < relend
6318 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
6319 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
6320 {
6321 offset += 24;
6322 rel += 1;
6323 }
6324 else
6325 goto broken_opd;
1e2f5b6e
AM		 6326 }
6327
3f764659
JJ		 6328 add_aux_fields = non_overlapping && cnt_16b > 0;
6329
6330 if (need_edit || add_aux_fields)
1e2f5b6e
AM		 6331 {
6332 Elf_Internal_Rela *write_rel;
6333 bfd_byte *rptr, *wptr;
3f764659 6334 bfd_byte *new_contents = NULL;
b34976b6 6335 bfd_boolean skip;
3f764659 6336 long opd_ent_size;
1e2f5b6e
AM		 6337
6338 /* This seems a waste of time as input .opd sections are all
6339 zeros as generated by gcc, but I suppose there's no reason
6340 this will always be so. We might start putting something in
6341 the third word of .opd entries. */
6342 if ((sec->flags & SEC_IN_MEMORY) == 0)
6343 {
eea6121a
AM		 6344 bfd_byte *loc;
6345 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 6346 {
eea6121a
AM		 6347 if (loc != NULL)
6348 free (loc);
50bc7936 6349 error_ret:
6cdc0ccc
AM		 6350 if (local_syms != NULL
6351 && symtab_hdr->contents != (unsigned char *) local_syms)
6352 free (local_syms);
6cdc0ccc
AM		 6353 if (elf_section_data (sec)->relocs != relstart)
6354 free (relstart);
b34976b6 6355 return FALSE;
6cdc0ccc 6356 }
1e2f5b6e
AM		 6357 sec->contents = loc;
6358 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6359 }
6360
6361 elf_section_data (sec)->relocs = relstart;
6362
3f764659 6363 new_contents = sec->contents;
3f764659
JJ		 6364 if (add_aux_fields)
6365 {
6366 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
6367 if (new_contents == NULL)
6368 return FALSE;
6369 need_pad = FALSE;
3f764659 6370 }
b4f4e59f
AM		 6371 wptr = new_contents;
6372 rptr = sec->contents;
3f764659 6373
1e2f5b6e 6374 write_rel = relstart;
b34976b6 6375 skip = FALSE;
1e2f5b6e 6376 offset = 0;
3f764659 6377 opd_ent_size = 0;
1e2f5b6e
AM		 6378 for (rel = relstart; rel < relend; rel++)
6379 {
50bc7936
AM		 6380 unsigned long r_symndx;
6381 asection *sym_sec;
6382 struct elf_link_hash_entry *h;
6383 Elf_Internal_Sym *sym;
6384
6385 r_symndx = ELF64_R_SYM (rel->r_info);
6386 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 6387 r_symndx, ibfd))
50bc7936
AM		 6388 goto error_ret;
6389
1e2f5b6e
AM		 6390 if (rel->r_offset == offset)
6391 {
50bc7936 6392 struct ppc_link_hash_entry *fdh = NULL;
3f764659
JJ		 6393
6394 /* See if the .opd entry is full 24 byte or
6395 16 byte (with fd_aux entry overlapped with next
6396 fd_func). */
6397 opd_ent_size = 24;
6398 if ((rel + 2 == relend && sec->size == offset + 16)
6399 || (rel + 3 < relend
6400 && rel[2].r_offset == offset + 16
6401 && rel[3].r_offset == offset + 24
6402 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
6403 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
6404 opd_ent_size = 16;
6405
4025353c
AM		 6406 if (h != NULL
6407 && h->root.root.string[0] == '.')
c4f68ce3
AM		 6408 {
6409 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
6410 ppc_hash_table (info));
6411 if (fdh != NULL
6412 && fdh->elf.root.type != bfd_link_hash_defined
6413 && fdh->elf.root.type != bfd_link_hash_defweak)
6414 fdh = NULL;
6415 }
1e2f5b6e 6416
51020317
AM		 6417 skip = (sym_sec->owner != ibfd
6418 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 6419 if (skip)
6420 {
4025353c 6421 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 6422 {
6423 /* Arrange for the function descriptor sym
6424 to be dropped. */
d6fe2dc1
AM		 6425 fdh->elf.root.u.def.value = 0;
6426 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 6427 }
3f764659 6428 opd_adjust[rel->r_offset / 8] = -1;
a4aa0fb7
AM		 6429 }
6430 else
1e2f5b6e
AM		 6431 {
6432 /* We'll be keeping this opd entry. */
6433
4025353c 6434 if (fdh != NULL)
1e2f5b6e 6435 {
754021d0
AM		 6436 /* Redefine the function descriptor symbol to
6437 this location in the opd section. It is
6438 necessary to update the value here rather
6439 than using an array of adjustments as we do
6440 for local symbols, because various places
6441 in the generic ELF code use the value
6442 stored in u.def.value. */
3f764659 6443 fdh->elf.root.u.def.value = wptr - new_contents;
754021d0 6444 fdh->adjust_done = 1;
1e2f5b6e 6445 }
754021d0
AM		 6446
6447 /* Local syms are a bit tricky. We could
6448 tweak them as they can be cached, but
6449 we'd need to look through the local syms
6450 for the function descriptor sym which we
6451 don't have at the moment. So keep an
6452 array of adjustments. */
3f764659
JJ		 6453 opd_adjust[rel->r_offset / 8]
6454 = (wptr - new_contents) - (rptr - sec->contents);
1e2f5b6e
AM		 6455
6456 if (wptr != rptr)
3f764659
JJ		 6457 memcpy (wptr, rptr, opd_ent_size);
6458 wptr += opd_ent_size;
6459 if (add_aux_fields && opd_ent_size == 16)
6460 {
6461 memset (wptr, '\0', 8);
6462 wptr += 8;
6463 }
1e2f5b6e 6464 }
3f764659
JJ		 6465 rptr += opd_ent_size;
6466 offset += opd_ent_size;
1e2f5b6e
AM		 6467 }
6468
50bc7936
AM		 6469 if (skip)
6470 {
18d944df
AM		 6471 if (!info->relocatable
6472 && !dec_dynrel_count (rel->r_info, sec, info,
6473 NULL, h, sym_sec))
8c1d1bb8 6474 goto error_ret;
50bc7936
AM		 6475 }
6476 else
1e2f5b6e 6477 {
50bc7936
AM		 6478 /* We need to adjust any reloc offsets to point to the
6479 new opd entries. While we're at it, we may as well
6480 remove redundant relocs. */
3f764659 6481 rel->r_offset += opd_adjust[(offset - opd_ent_size) / 8];
1e2f5b6e
AM		 6482 if (write_rel != rel)
6483 memcpy (write_rel, rel, sizeof (*rel));
6484 ++write_rel;
6485 }
6486 }
6487
3f764659 6488 sec->size = wptr - new_contents;
1e2f5b6e 6489 sec->reloc_count = write_rel - relstart;
3f764659
JJ		 6490 if (add_aux_fields)
6491 {
6492 free (sec->contents);
6493 sec->contents = new_contents;
6494 }
6495
cdcf6e38
AM		 6496 /* Fudge the size too, as this is used later in
6497 elf_bfd_final_link if we are emitting relocs. */
6498 elf_section_data (sec)->rel_hdr.sh_size
6499 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
6500 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
754021d0 6501 some_edited = TRUE;
1e2f5b6e 6502 }
6cdc0ccc 6503 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 6504 free (relstart);
6cdc0ccc 6505
411e1bfb
AM		 6506 if (local_syms != NULL
6507 && symtab_hdr->contents != (unsigned char *) local_syms)
6508 {
6509 if (!info->keep_memory)
6510 free (local_syms);
6511 else
6512 symtab_hdr->contents = (unsigned char *) local_syms;
6513 }
6514 }
6515
754021d0
AM		 6516 if (some_edited)
6517 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
6518
3f764659
JJ		 6519 /* If we are doing a final link and the last .opd entry is just 16 byte
6520 long, add a 8 byte padding after it. */
6521 if (need_pad != NULL && !info->relocatable)
6522 {
6523 bfd_byte *p;
6524
6525 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
6526 {
6527 BFD_ASSERT (need_pad->size > 0);
6528
6529 p = bfd_malloc (need_pad->size + 8);
6530 if (p == NULL)
6531 return FALSE;
699733f6 6532
3f764659
JJ		 6533 if (! bfd_get_section_contents (need_pad->owner, need_pad,
6534 p, 0, need_pad->size))
6535 return FALSE;
6536
6537 need_pad->contents = p;
6538 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6539 }
6540 else
6541 {
6542 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
6543 if (p == NULL)
6544 return FALSE;
6545
6546 need_pad->contents = p;
6547 }
6548
6549 memset (need_pad->contents + need_pad->size, 0, 8);
6550 need_pad->size += 8;
6551 }
6552
411e1bfb
AM		 6553 return TRUE;
6554}
6555
e1918d23 6556/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 6557
e1918d23 6558asection *
4ce794b7 6559ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb 6560{
411e1bfb
AM		 6561 struct ppc_link_hash_table *htab;
6562
411e1bfb 6563 htab = ppc_hash_table (info);
a48ebf4d
AM		 6564 if (htab->tls_get_addr != NULL)
6565 {
8387904d 6566 struct ppc_link_hash_entry *h = htab->tls_get_addr;
a48ebf4d 6567
8387904d
AM		 6568 while (h->elf.root.type == bfd_link_hash_indirect
6569 || h->elf.root.type == bfd_link_hash_warning)
6570 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
a48ebf4d
AM		 6571
6572 htab->tls_get_addr = h;
8387904d
AM		 6573
6574 if (htab->tls_get_addr_fd == NULL
6575 && h->oh != NULL
c4f68ce3
AM		 6576 && h->oh->is_func_descriptor
6577 && (h->oh->elf.root.type == bfd_link_hash_defined
6578 || h->oh->elf.root.type == bfd_link_hash_defweak))
8387904d
AM		 6579 htab->tls_get_addr_fd = h->oh;
6580 }
6581
6582 if (htab->tls_get_addr_fd != NULL)
6583 {
6584 struct ppc_link_hash_entry *h = htab->tls_get_addr_fd;
6585
6586 while (h->elf.root.type == bfd_link_hash_indirect
6587 || h->elf.root.type == bfd_link_hash_warning)
6588 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6589
6590 htab->tls_get_addr_fd = h;
a48ebf4d
AM		 6591 }
6592
e1918d23 6593 return _bfd_elf_tls_setup (obfd, info);
951fd09b 6594}
411e1bfb 6595
951fd09b
AM		 6596/* Run through all the TLS relocs looking for optimization
6597 opportunities. The linker has been hacked (see ppc64elf.em) to do
6598 a preliminary section layout so that we know the TLS segment
6599 offsets. We can't optimize earlier because some optimizations need
6600 to know the tp offset, and we need to optimize before allocating
6601 dynamic relocations. */
6602
6603bfd_boolean
4ce794b7 6604ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 6605{
6606 bfd *ibfd;
6607 asection *sec;
6608 struct ppc_link_hash_table *htab;
6609
1049f94e 6610 if (info->relocatable || info->shared)
411e1bfb
AM		 6611 return TRUE;
6612
951fd09b 6613 htab = ppc_hash_table (info);
411e1bfb
AM		 6614 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6615 {
6616 Elf_Internal_Sym *locsyms = NULL;
6617
6618 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6619 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
6620 {
6621 Elf_Internal_Rela *relstart, *rel, *relend;
6622 int expecting_tls_get_addr;
6623
6624 /* Read the relocations. */
4ce794b7 6625 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6626 info->keep_memory);
411e1bfb
AM		 6627 if (relstart == NULL)
6628 return FALSE;
6629
6630 expecting_tls_get_addr = 0;
6631 relend = relstart + sec->reloc_count;
6632 for (rel = relstart; rel < relend; rel++)
6633 {
6634 enum elf_ppc64_reloc_type r_type;
6635 unsigned long r_symndx;
6636 struct elf_link_hash_entry *h;
6637 Elf_Internal_Sym *sym;
6638 asection *sym_sec;
e7b938ca
AM		 6639 char *tls_mask;
6640 char tls_set, tls_clear, tls_type = 0;
411e1bfb 6641 bfd_vma value;
951fd09b 6642 bfd_boolean ok_tprel, is_local;
411e1bfb
AM		 6643
6644 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 6645 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM		 6646 r_symndx, ibfd))
6647 {
6648 err_free_rel:
6649 if (elf_section_data (sec)->relocs != relstart)
6650 free (relstart);
6651 if (locsyms != NULL
6652 && (elf_tdata (ibfd)->symtab_hdr.contents
6653 != (unsigned char *) locsyms))
6654 free (locsyms);
6655 return FALSE;
6656 }
6657
6658 if (h != NULL)
6659 {
6660 if (h->root.type != bfd_link_hash_defined
6661 && h->root.type != bfd_link_hash_defweak)
6662 continue;
6663 value = h->root.u.def.value;
6664 }
6665 else
4025353c
AM		 6666 /* Symbols referenced by TLS relocs must be of type
6667 STT_TLS. So no need for .opd local sym adjust. */
6668 value = sym->st_value;
951fd09b 6669
411e1bfb 6670 ok_tprel = FALSE;
951fd09b
AM		 6671 is_local = FALSE;
6672 if (h == NULL
f5385ebf 6673 || !h->def_dynamic)
411e1bfb 6674 {
951fd09b 6675 is_local = TRUE;
411e1bfb
AM		 6676 value += sym_sec->output_offset;
6677 value += sym_sec->output_section->vma;
e1918d23 6678 value -= htab->elf.tls_sec->vma;
411e1bfb
AM		 6679 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
6680 < (bfd_vma) 1 << 32);
6681 }
6682
4ce794b7 6683 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM		 6684 switch (r_type)
6685 {
6686 case R_PPC64_GOT_TLSLD16:
6687 case R_PPC64_GOT_TLSLD16_LO:
6688 case R_PPC64_GOT_TLSLD16_HI:
6689 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM		 6690 /* These relocs should never be against a symbol
6691 defined in a shared lib. Leave them alone if
6692 that turns out to be the case. */
e717da7e 6693 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM		 6694 if (!is_local)
6695 continue;
6696
951fd09b
AM		 6697 /* LD -> LE */
6698 tls_set = 0;
6699 tls_clear = TLS_LD;
e7b938ca 6700 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 6701 expecting_tls_get_addr = 1;
6702 break;
6703
6704 case R_PPC64_GOT_TLSGD16:
6705 case R_PPC64_GOT_TLSGD16_LO:
6706 case R_PPC64_GOT_TLSGD16_HI:
6707 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 6708 if (ok_tprel)
411e1bfb
AM		 6709 /* GD -> LE */
6710 tls_set = 0;
6711 else
6712 /* GD -> IE */
951fd09b
AM		 6713 tls_set = TLS_TLS | TLS_TPRELGD;
6714 tls_clear = TLS_GD;
e7b938ca 6715 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 6716 expecting_tls_get_addr = 1;
6717 break;
6718
6719 case R_PPC64_GOT_TPREL16_DS:
6720 case R_PPC64_GOT_TPREL16_LO_DS:
6721 case R_PPC64_GOT_TPREL16_HI:
6722 case R_PPC64_GOT_TPREL16_HA:
6723 expecting_tls_get_addr = 0;
6724 if (ok_tprel)
6725 {
6726 /* IE -> LE */
6727 tls_set = 0;
6728 tls_clear = TLS_TPREL;
e7b938ca 6729 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM		 6730 break;
6731 }
6732 else
6733 continue;
6734
6735 case R_PPC64_REL14:
6736 case R_PPC64_REL14_BRTAKEN:
6737 case R_PPC64_REL14_BRNTAKEN:
6738 case R_PPC64_REL24:
6739 if (h != NULL
8387904d
AM		 6740 && (h == &htab->tls_get_addr->elf
6741 || h == &htab->tls_get_addr_fd->elf))
411e1bfb
AM		 6742 {
6743 if (!expecting_tls_get_addr
6744 && rel != relstart
6745 && ((ELF64_R_TYPE (rel[-1].r_info)
6746 == R_PPC64_TOC16)
6747 || (ELF64_R_TYPE (rel[-1].r_info)
6748 == R_PPC64_TOC16_LO)))
6749 {
6750 /* Check for toc tls entries. */
6751 char *toc_tls;
951fd09b 6752 int retval;
411e1bfb 6753
0d4792f7 6754 retval = get_tls_mask (&toc_tls, NULL, &locsyms,
951fd09b
AM		 6755 rel - 1, ibfd);
6756 if (retval == 0)
411e1bfb
AM		 6757 goto err_free_rel;
6758 if (toc_tls != NULL)
951fd09b 6759 expecting_tls_get_addr = retval > 1;
411e1bfb
AM		 6760 }
6761
6762 if (expecting_tls_get_addr)
6763 {
6764 struct plt_entry *ent;
6765 for (ent = h->plt.plist; ent; ent = ent->next)
6766 if (ent->addend == 0)
6767 {
6768 if (ent->plt.refcount > 0)
6769 ent->plt.refcount -= 1;
6770 break;
6771 }
6772 }
6773 }
6774 expecting_tls_get_addr = 0;
6775 continue;
6776
6777 case R_PPC64_TPREL64:
6778 expecting_tls_get_addr = 0;
6779 if (ok_tprel)
6780 {
6781 /* IE -> LE */
6782 tls_set = TLS_EXPLICIT;
6783 tls_clear = TLS_TPREL;
6784 break;
6785 }
6786 else
6787 continue;
6788
6789 case R_PPC64_DTPMOD64:
6790 expecting_tls_get_addr = 0;
951fd09b
AM		 6791 if (rel + 1 < relend
6792 && (rel[1].r_info
6793 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
6794 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 6795 {
951fd09b 6796 if (ok_tprel)
411e1bfb 6797 /* GD -> LE */
951fd09b 6798 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM		 6799 else
6800 /* GD -> IE */
951fd09b
AM		 6801 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
6802 tls_clear = TLS_GD;
411e1bfb
AM		 6803 }
6804 else
6805 {
951fd09b
AM		 6806 if (!is_local)
6807 continue;
6808
6809 /* LD -> LE */
6810 tls_set = TLS_EXPLICIT;
6811 tls_clear = TLS_LD;
411e1bfb
AM		 6812 }
6813 break;
6814
6815 default:
6816 expecting_tls_get_addr = 0;
6817 continue;
6818 }
6819
6820 if ((tls_set & TLS_EXPLICIT) == 0)
6821 {
6822 struct got_entry *ent;
6823
6824 /* Adjust got entry for this reloc. */
6825 if (h != NULL)
6826 ent = h->got.glist;
6827 else
6828 ent = elf_local_got_ents (ibfd)[r_symndx];
6829
6830 for (; ent != NULL; ent = ent->next)
6831 if (ent->addend == rel->r_addend
e717da7e 6832 && ent->owner == ibfd
e7b938ca 6833 && ent->tls_type == tls_type)
411e1bfb
AM		 6834 break;
6835 if (ent == NULL)
6836 abort ();
6837
6838 if (tls_set == 0)
6839 {
6840 /* We managed to get rid of a got entry. */
6841 if (ent->got.refcount > 0)
6842 ent->got.refcount -= 1;
6843 }
411e1bfb 6844 }
8c1d1bb8 6845 else
411e1bfb 6846 {
8c1d1bb8
AM		 6847 /* If we got rid of a DTPMOD/DTPREL reloc pair then
6848 we'll lose one or two dyn relocs. */
6849 if (!dec_dynrel_count (rel->r_info, sec, info,
6850 NULL, h, sym_sec))
6851 return FALSE;
6852
6853 if (tls_set == (TLS_EXPLICIT | TLS_GD))
6854 {
6855 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
6856 NULL, h, sym_sec))
6857 return FALSE;
6858 }
411e1bfb
AM		 6859 }
6860
e7b938ca
AM		 6861 *tls_mask |= tls_set;
6862 *tls_mask &= ~tls_clear;
411e1bfb
AM		 6863 }
6864
6865 if (elf_section_data (sec)->relocs != relstart)
6866 free (relstart);
6867 }
6868
6869 if (locsyms != NULL
6870 && (elf_tdata (ibfd)->symtab_hdr.contents
6871 != (unsigned char *) locsyms))
6cdc0ccc
AM		 6872 {
6873 if (!info->keep_memory)
411e1bfb 6874 free (locsyms);
6cdc0ccc 6875 else
411e1bfb 6876 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 6877 }
1e2f5b6e 6878 }
b34976b6 6879 return TRUE;
1e2f5b6e 6880}
b34976b6 6881
c5614fa4
AM		 6882/* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
6883 the values of any global symbols in a toc section that has been
6884 edited. Globals in toc sections should be a rarity, so this function
6885 sets a flag if any are found in toc sections other than the one just
6886 edited, so that futher hash table traversals can be avoided. */
6887
6888struct adjust_toc_info
6889{
6890 asection *toc;
6891 unsigned long *skip;
6892 bfd_boolean global_toc_syms;
6893};
6894
6895static bfd_boolean
6896adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
6897{
6898 struct ppc_link_hash_entry *eh;
6899 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
6900
6901 if (h->root.type == bfd_link_hash_indirect)
6902 return TRUE;
6903
6904 if (h->root.type == bfd_link_hash_warning)
6905 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6906
6907 if (h->root.type != bfd_link_hash_defined
6908 && h->root.type != bfd_link_hash_defweak)
6909 return TRUE;
6910
6911 eh = (struct ppc_link_hash_entry *) h;
6912 if (eh->adjust_done)
6913 return TRUE;
6914
6915 if (eh->elf.root.u.def.section == toc_inf->toc)
6916 {
6917 unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3];
6918 if (skip != (unsigned long) -1)
6919 eh->elf.root.u.def.value -= skip;
6920 else
6921 {
6922 (*_bfd_error_handler)
6923 (_("%s defined in removed toc entry"), eh->elf.root.root.string);
6924 eh->elf.root.u.def.section = &bfd_abs_section;
6925 eh->elf.root.u.def.value = 0;
6926 }
6927 eh->adjust_done = 1;
6928 }
6929 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
6930 toc_inf->global_toc_syms = TRUE;
6931
6932 return TRUE;
6933}
6934
6935/* Examine all relocs referencing .toc sections in order to remove
6936 unused .toc entries. */
6937
6938bfd_boolean
6939ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
6940{
6941 bfd *ibfd;
6942 struct adjust_toc_info toc_inf;
6943
6944 toc_inf.global_toc_syms = TRUE;
6945 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6946 {
6947 asection *toc, *sec;
6948 Elf_Internal_Shdr *symtab_hdr;
6949 Elf_Internal_Sym *local_syms;
6950 struct elf_link_hash_entry **sym_hashes;
92b7a70f 6951 Elf_Internal_Rela *relstart, *rel;
c5614fa4
AM		 6952 unsigned long *skip, *drop;
6953 unsigned char *used;
6954 unsigned char *keep, last, some_unused;
6955
6956 toc = bfd_get_section_by_name (ibfd, ".toc");
6957 if (toc == NULL
92b7a70f 6958 || toc->size == 0
c5614fa4
AM		 6959 || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS
6960 || elf_discarded_section (toc))
6961 continue;
6962
6963 local_syms = NULL;
6964 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6965 sym_hashes = elf_sym_hashes (ibfd);
6966
6967 /* Look at sections dropped from the final link. */
6968 skip = NULL;
6969 relstart = NULL;
6970 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6971 {
6972 if (sec->reloc_count == 0
6973 || !elf_discarded_section (sec)
6974 || get_opd_info (sec)
6975 || (sec->flags & SEC_ALLOC) == 0
6976 || (sec->flags & SEC_DEBUGGING) != 0)
6977 continue;
6978
6979 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
6980 if (relstart == NULL)
6981 goto error_ret;
6982
6983 /* Run through the relocs to see which toc entries might be
6984 unused. */
6985 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
6986 {
6987 enum elf_ppc64_reloc_type r_type;
6988 unsigned long r_symndx;
6989 asection *sym_sec;
6990 struct elf_link_hash_entry *h;
6991 Elf_Internal_Sym *sym;
6992 bfd_vma val;
6993
6994 r_type = ELF64_R_TYPE (rel->r_info);
6995 switch (r_type)
6996 {
6997 default:
6998 continue;
6999
7000 case R_PPC64_TOC16:
7001 case R_PPC64_TOC16_LO:
7002 case R_PPC64_TOC16_HI:
7003 case R_PPC64_TOC16_HA:
7004 case R_PPC64_TOC16_DS:
7005 case R_PPC64_TOC16_LO_DS:
7006 break;
7007 }
7008
7009 r_symndx = ELF64_R_SYM (rel->r_info);
7010 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7011 r_symndx, ibfd))
7012 goto error_ret;
7013
7014 if (sym_sec != toc)
7015 continue;
7016
7017 if (h != NULL)
7018 val = h->root.u.def.value;
7019 else
7020 val = sym->st_value;
7021 val += rel->r_addend;
7022
7023 if (val >= toc->size)
7024 continue;
7025
7026 /* Anything in the toc ought to be aligned to 8 bytes.
7027 If not, don't mark as unused. */
7028 if (val & 7)
7029 continue;
7030
7031 if (skip == NULL)
7032 {
7033 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8);
7034 if (skip == NULL)
7035 goto error_ret;
7036 }
7037
7038 skip[val >> 3] = 1;
7039 }
7040
7041 if (elf_section_data (sec)->relocs != relstart)
7042 free (relstart);
7043 }
7044
7045 if (skip == NULL)
7046 continue;
7047
7048 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
7049 if (used == NULL)
7050 {
7051 error_ret:
7052 if (local_syms != NULL
7053 && symtab_hdr->contents != (unsigned char *) local_syms)
7054 free (local_syms);
7055 if (sec != NULL
7056 && relstart != NULL
7057 && elf_section_data (sec)->relocs != relstart)
7058 free (relstart);
7059 if (skip != NULL)
7060 free (skip);
7061 return FALSE;
7062 }
7063
7064 /* Now check all kept sections that might reference the toc. */
7065 for (sec = ibfd->sections;
7066 sec != NULL;
7067 /* Check the toc itself last. */
7068 sec = (sec == toc ? NULL
7069 : sec->next == toc && sec->next->next ? sec->next->next
7070 : sec->next == NULL ? toc
7071 : sec->next))
7072 {
7073 int repeat;
7074
7075 if (sec->reloc_count == 0
7076 || elf_discarded_section (sec)
7077 || get_opd_info (sec)
7078 || (sec->flags & SEC_ALLOC) == 0
7079 || (sec->flags & SEC_DEBUGGING) != 0)
7080 continue;
7081
7082 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE);
7083 if (relstart == NULL)
7084 goto error_ret;
7085
7086 /* Mark toc entries referenced as used. */
7087 repeat = 0;
7088 do
7089 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7090 {
7091 enum elf_ppc64_reloc_type r_type;
7092 unsigned long r_symndx;
7093 asection *sym_sec;
7094 struct elf_link_hash_entry *h;
7095 Elf_Internal_Sym *sym;
7096 bfd_vma val;
7097
7098 r_type = ELF64_R_TYPE (rel->r_info);
7099 switch (r_type)
7100 {
7101 case R_PPC64_TOC16:
7102 case R_PPC64_TOC16_LO:
7103 case R_PPC64_TOC16_HI:
7104 case R_PPC64_TOC16_HA:
7105 case R_PPC64_TOC16_DS:
7106 case R_PPC64_TOC16_LO_DS:
7107 /* In case we're taking addresses of toc entries. */
7108 case R_PPC64_ADDR64:
7109 break;
7110
7111 default:
7112 continue;
7113 }
7114
7115 r_symndx = ELF64_R_SYM (rel->r_info);
7116 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7117 r_symndx, ibfd))
7118 {
7119 free (used);
7120 goto error_ret;
7121 }
7122
7123 if (sym_sec != toc)
7124 continue;
7125
7126 if (h != NULL)
7127 val = h->root.u.def.value;
7128 else
7129 val = sym->st_value;
7130 val += rel->r_addend;
7131
7132 if (val >= toc->size)
7133 continue;
7134
7135 /* For the toc section, we only mark as used if
7136 this entry itself isn't unused. */
7137 if (sec == toc
7138 && !used[val >> 3]
7139 && (used[rel->r_offset >> 3]
7140 || !skip[rel->r_offset >> 3]))
7141 /* Do all the relocs again, to catch reference
7142 chains. */
7143 repeat = 1;
7144
7145 used[val >> 3] = 1;
7146 }
7147 while (repeat);
7148 }
7149
7150 /* Merge the used and skip arrays. Assume that TOC
7151 doublewords not appearing as either used or unused belong
7152 to to an entry more than one doubleword in size. */
7153 for (drop = skip, keep = used, last = 0, some_unused = 0;
7154 drop < skip + (toc->size + 7) / 8;
7155 ++drop, ++keep)
7156 {
7157 if (*keep)
7158 {
7159 *drop = 0;
7160 last = 0;
7161 }
7162 else if (*drop)
7163 {
7164 some_unused = 1;
7165 last = 1;
7166 }
7167 else
7168 *drop = last;
7169 }
7170
7171 free (used);
7172
7173 if (some_unused)
7174 {
7175 bfd_byte *contents, *src;
7176 unsigned long off;
7177
7178 /* Shuffle the toc contents, and at the same time convert the
7179 skip array from booleans into offsets. */
7180 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
7181 goto error_ret;
7182
7183 elf_section_data (toc)->this_hdr.contents = contents;
7184
7185 for (src = contents, off = 0, drop = skip;
7186 src < contents + toc->size;
7187 src += 8, ++drop)
7188 {
7189 if (*drop)
7190 {
7191 *drop = (unsigned long) -1;
7192 off += 8;
7193 }
7194 else if (off != 0)
7195 {
7196 *drop = off;
7197 memcpy (src - off, src, 8);
7198 }
7199 }
7200 toc->rawsize = toc->size;
7201 toc->size = src - contents - off;
7202
92b7a70f
AM		 7203 if (toc->reloc_count != 0)
7204 {
7205 Elf_Internal_Rela *wrel;
7206 bfd_size_type sz;
c5614fa4 7207
92b7a70f
AM		 7208 /* Read toc relocs. */
7209 relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
7210 TRUE);
7211 if (relstart == NULL)
7212 goto error_ret;
7213
7214 /* Remove unused toc relocs, and adjust those we keep. */
7215 wrel = relstart;
7216 for (rel = relstart; rel < relstart + toc->reloc_count; ++rel)
7217 if (skip[rel->r_offset >> 3] != (unsigned long) -1)
7218 {
7219 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
7220 wrel->r_info = rel->r_info;
7221 wrel->r_addend = rel->r_addend;
7222 ++wrel;
7223 }
8c1d1bb8
AM		 7224 else if (!dec_dynrel_count (rel->r_info, toc, info,
7225 &local_syms, NULL, NULL))
7226 goto error_ret;
35090471 7227
92b7a70f
AM		 7228 toc->reloc_count = wrel - relstart;
7229 sz = elf_section_data (toc)->rel_hdr.sh_entsize;
7230 elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz;
7231 BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL);
7232 }
c5614fa4
AM		 7233
7234 /* Adjust addends for relocs against the toc section sym. */
7235 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7236 {
7237 if (sec->reloc_count == 0
7238 || elf_discarded_section (sec))
7239 continue;
7240
7241 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7242 TRUE);
7243 if (relstart == NULL)
7244 goto error_ret;
7245
7246 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7247 {
7248 enum elf_ppc64_reloc_type r_type;
7249 unsigned long r_symndx;
7250 asection *sym_sec;
7251 struct elf_link_hash_entry *h;
7252 Elf_Internal_Sym *sym;
7253
7254 r_type = ELF64_R_TYPE (rel->r_info);
7255 switch (r_type)
7256 {
7257 default:
7258 continue;
7259
7260 case R_PPC64_TOC16:
7261 case R_PPC64_TOC16_LO:
7262 case R_PPC64_TOC16_HI:
7263 case R_PPC64_TOC16_HA:
7264 case R_PPC64_TOC16_DS:
7265 case R_PPC64_TOC16_LO_DS:
7266 case R_PPC64_ADDR64:
7267 break;
7268 }
7269
7270 r_symndx = ELF64_R_SYM (rel->r_info);
7271 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7272 r_symndx, ibfd))
7273 goto error_ret;
7274
7275 if (sym_sec != toc || h != NULL || sym->st_value != 0)
7276 continue;
7277
7278 rel->r_addend -= skip[rel->r_addend >> 3];
7279 }
7280 }
7281
7282 /* We shouldn't have local or global symbols defined in the TOC,
7283 but handle them anyway. */
7284 if (local_syms != NULL)
7285 {
7286 Elf_Internal_Sym *sym;
7287
7288 for (sym = local_syms;
7289 sym < local_syms + symtab_hdr->sh_info;
7290 ++sym)
7291 if (sym->st_shndx != SHN_UNDEF
7292 && (sym->st_shndx < SHN_LORESERVE
7293 || sym->st_shndx > SHN_HIRESERVE)
7294 && sym->st_value != 0
7295 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
7296 {
7297 if (skip[sym->st_value >> 3] != (unsigned long) -1)
7298 sym->st_value -= skip[sym->st_value >> 3];
7299 else
7300 {
7301 (*_bfd_error_handler)
7302 (_("%s defined in removed toc entry"),
26c61ae5
L		 7303 bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7304 NULL));
c5614fa4
AM		 7305 sym->st_value = 0;
7306 sym->st_shndx = SHN_ABS;
7307 }
7308 symtab_hdr->contents = (unsigned char *) local_syms;
7309 }
7310 }
7311
7312 /* Finally, adjust any global syms defined in the toc. */
7313 if (toc_inf.global_toc_syms)
7314 {
7315 toc_inf.toc = toc;
7316 toc_inf.skip = skip;
7317 toc_inf.global_toc_syms = FALSE;
7318 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
7319 &toc_inf);
7320 }
7321 }
7322
7323 if (local_syms != NULL
7324 && symtab_hdr->contents != (unsigned char *) local_syms)
7325 {
7326 if (!info->keep_memory)
7327 free (local_syms);
7328 else
7329 symtab_hdr->contents = (unsigned char *) local_syms;
7330 }
7331 free (skip);
7332 }
7333
7334 return TRUE;
7335}
7336
65f38f15
AM		 7337/* Allocate space in .plt, .got and associated reloc sections for
7338 dynamic relocs. */
5bd4f169 7339
b34976b6 7340static bfd_boolean
4ce794b7 7341allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 7342{
65f38f15
AM		 7343 struct bfd_link_info *info;
7344 struct ppc_link_hash_table *htab;
5bd4f169 7345 asection *s;
65f38f15
AM		 7346 struct ppc_link_hash_entry *eh;
7347 struct ppc_dyn_relocs *p;
411e1bfb 7348 struct got_entry *gent;
5bd4f169 7349
e92d460e 7350 if (h->root.type == bfd_link_hash_indirect)
b34976b6 7351 return TRUE;
5bd4f169 7352
e92d460e
AM		 7353 if (h->root.type == bfd_link_hash_warning)
7354 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7355
65f38f15
AM		 7356 info = (struct bfd_link_info *) inf;
7357 htab = ppc_hash_table (info);
5bd4f169 7358
65f38f15 7359 if (htab->elf.dynamic_sections_created
411e1bfb 7360 && h->dynindx != -1
9c7a29a3 7361 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 7362 {
411e1bfb
AM		 7363 struct plt_entry *pent;
7364 bfd_boolean doneone = FALSE;
7365 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
7366 if (pent->plt.refcount > 0)
7367 {
411e1bfb
AM		 7368 /* If this is the first .plt entry, make room for the special
7369 first entry. */
4ce794b7 7370 s = htab->plt;
eea6121a
AM		 7371 if (s->size == 0)
7372 s->size += PLT_INITIAL_ENTRY_SIZE;
411e1bfb 7373
eea6121a 7374 pent->plt.offset = s->size;
411e1bfb
AM		 7375
7376 /* Make room for this entry. */
eea6121a 7377 s->size += PLT_ENTRY_SIZE;
411e1bfb
AM		 7378
7379 /* Make room for the .glink code. */
4ce794b7 7380 s = htab->glink;
eea6121a
AM		 7381 if (s->size == 0)
7382 s->size += GLINK_CALL_STUB_SIZE;
411e1bfb 7383 /* We need bigger stubs past index 32767. */
eea6121a
AM		 7384 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
7385 s->size += 4;
7386 s->size += 2*4;
411e1bfb
AM		 7387
7388 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 7389 s = htab->relplt;
eea6121a 7390 s->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 7391 doneone = TRUE;
7392 }
7393 else
7394 pent->plt.offset = (bfd_vma) -1;
7395 if (!doneone)
65f38f15 7396 {
411e1bfb 7397 h->plt.plist = NULL;
f5385ebf 7398 h->needs_plt = 0;
65f38f15
AM		 7399 }
7400 }
7401 else
7402 {
411e1bfb 7403 h->plt.plist = NULL;
f5385ebf 7404 h->needs_plt = 0;
65f38f15
AM		 7405 }
7406
951fd09b
AM		 7407 eh = (struct ppc_link_hash_entry *) h;
7408 /* Run through the TLS GD got entries first if we're changing them
7409 to TPREL. */
e7b938ca 7410 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 7411 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7412 if (gent->got.refcount > 0
7413 && (gent->tls_type & TLS_GD) != 0)
7414 {
7415 /* This was a GD entry that has been converted to TPREL. If
7416 there happens to be a TPREL entry we can use that one. */
7417 struct got_entry *ent;
7418 for (ent = h->got.glist; ent != NULL; ent = ent->next)
7419 if (ent->got.refcount > 0
7420 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 7421 && ent->addend == gent->addend
7422 && ent->owner == gent->owner)
951fd09b
AM		 7423 {
7424 gent->got.refcount = 0;
7425 break;
7426 }
7427
7428 /* If not, then we'll be using our own TPREL entry. */
7429 if (gent->got.refcount != 0)
7430 gent->tls_type = TLS_TLS | TLS_TPREL;
7431 }
7432
411e1bfb
AM		 7433 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7434 if (gent->got.refcount > 0)
7435 {
951fd09b
AM		 7436 bfd_boolean dyn;
7437
411e1bfb 7438 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 7439 Undefined weak syms won't yet be marked as dynamic,
7440 nor will all TLS symbols. */
411e1bfb 7441 if (h->dynindx == -1
f5385ebf 7442 && !h->forced_local)
411e1bfb 7443 {
c152c796 7444 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM		 7445 return FALSE;
7446 }
65f38f15 7447
d881513a 7448 if ((gent->tls_type & TLS_LD) != 0
f5385ebf 7449 && !h->def_dynamic)
411e1bfb 7450 {
e717da7e 7451 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 7452 continue;
411e1bfb 7453 }
951fd09b 7454
e717da7e 7455 s = ppc64_elf_tdata (gent->owner)->got;
eea6121a
AM		 7456 gent->got.offset = s->size;
7457 s->size
d881513a 7458 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 7459 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 7460 if ((info->shared
7461 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
7462 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7463 || h->root.type != bfd_link_hash_undefweak))
eea6121a 7464 ppc64_elf_tdata (gent->owner)->relgot->size
e7b938ca 7465 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 7466 ? 2 * sizeof (Elf64_External_Rela)
7467 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 7468 }
7469 else
7470 gent->got.offset = (bfd_vma) -1;
65f38f15 7471
65f38f15 7472 if (eh->dyn_relocs == NULL)
b34976b6 7473 return TRUE;
65f38f15
AM		 7474
7475 /* In the shared -Bsymbolic case, discard space allocated for
7476 dynamic pc-relative relocs against symbols which turn out to be
7477 defined in regular objects. For the normal shared case, discard
7478 space for relocs that have become local due to symbol visibility
7479 changes. */
7480
7481 if (info->shared)
7482 {
9c7a29a3
AM		 7483 /* Relocs that use pc_count are those that appear on a call insn,
7484 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
7485 generated via assembly. We want calls to protected symbols to
7486 resolve directly to the function rather than going via the plt.
7487 If people want function pointer comparisons to work as expected
7488 then they should avoid writing weird assembly. */
09695f56 7489 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 7490 {
7491 struct ppc_dyn_relocs **pp;
7492
7493 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 7494 {
65f38f15
AM		 7495 p->count -= p->pc_count;
7496 p->pc_count = 0;
7497 if (p->count == 0)
7498 *pp = p->next;
7499 else
7500 pp = &p->next;
5bd4f169 7501 }
65f38f15 7502 }
4e795f50
AM		 7503
7504 /* Also discard relocs on undefined weak syms with non-default
7505 visibility. */
7506 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
7507 && h->root.type == bfd_link_hash_undefweak)
7508 eh->dyn_relocs = NULL;
65f38f15 7509 }
f4656909 7510 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 7511 {
7512 /* For the non-shared case, discard space for relocs against
7513 symbols which turn out to need copy relocs or are not
7514 dynamic. */
7515
f5385ebf
AM		 7516 if (!h->non_got_ref
7517 && h->def_dynamic
7518 && !h->def_regular)
65f38f15
AM		 7519 {
7520 /* Make sure this symbol is output as a dynamic symbol.
7521 Undefined weak syms won't yet be marked as dynamic. */
7522 if (h->dynindx == -1
f5385ebf 7523 && !h->forced_local)
65f38f15 7524 {
c152c796 7525 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 7526 return FALSE;
65f38f15
AM		 7527 }
7528
7529 /* If that succeeded, we know we'll be keeping all the
7530 relocs. */
7531 if (h->dynindx != -1)
7532 goto keep;
7533 }
7534
7535 eh->dyn_relocs = NULL;
7536
ec338859 7537 keep: ;
65f38f15
AM		 7538 }
7539
7540 /* Finally, allocate space. */
7541 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7542 {
7543 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 7544 sreloc->size += p->count * sizeof (Elf64_External_Rela);
65f38f15
AM		 7545 }
7546
b34976b6 7547 return TRUE;
65f38f15
AM		 7548}
7549
7550/* Find any dynamic relocs that apply to read-only sections. */
7551
b34976b6 7552static bfd_boolean
4ce794b7 7553readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 7554{
7555 struct ppc_link_hash_entry *eh;
7556 struct ppc_dyn_relocs *p;
7557
e92d460e
AM		 7558 if (h->root.type == bfd_link_hash_warning)
7559 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7560
65f38f15
AM		 7561 eh = (struct ppc_link_hash_entry *) h;
7562 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7563 {
7564 asection *s = p->sec->output_section;
7565
7566 if (s != NULL && (s->flags & SEC_READONLY) != 0)
7567 {
4ce794b7 7568 struct bfd_link_info *info = inf;
65f38f15
AM		 7569
7570 info->flags |= DF_TEXTREL;
7571
7572 /* Not an error, just cut short the traversal. */
b34976b6 7573 return FALSE;
65f38f15
AM		 7574 }
7575 }
b34976b6 7576 return TRUE;
65f38f15
AM		 7577}
7578
7579/* Set the sizes of the dynamic sections. */
7580
b34976b6 7581static bfd_boolean
4ce794b7
AM		 7582ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
7583 struct bfd_link_info *info)
65f38f15
AM		 7584{
7585 struct ppc_link_hash_table *htab;
7586 bfd *dynobj;
7587 asection *s;
b34976b6 7588 bfd_boolean relocs;
65f38f15
AM		 7589 bfd *ibfd;
7590
7591 htab = ppc_hash_table (info);
7592 dynobj = htab->elf.dynobj;
7593 if (dynobj == NULL)
7594 abort ();
7595
7596 if (htab->elf.dynamic_sections_created)
7597 {
7598 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 7599 if (info->executable)
65f38f15
AM		 7600 {
7601 s = bfd_get_section_by_name (dynobj, ".interp");
7602 if (s == NULL)
7603 abort ();
eea6121a 7604 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM		 7605 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
7606 }
7607 }
7608
7609 /* Set up .got offsets for local syms, and space for local dynamic
7610 relocs. */
7611 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7612 {
411e1bfb
AM		 7613 struct got_entry **lgot_ents;
7614 struct got_entry **end_lgot_ents;
e7b938ca 7615 char *lgot_masks;
65f38f15
AM		 7616 bfd_size_type locsymcount;
7617 Elf_Internal_Shdr *symtab_hdr;
7618 asection *srel;
7619
ee75fd95 7620 if (!is_ppc64_elf_target (ibfd->xvec))
65f38f15
AM		 7621 continue;
7622
e717da7e
AM		 7623 if (ppc64_tlsld_got (ibfd)->refcount > 0)
7624 {
7625 s = ppc64_elf_tdata (ibfd)->got;
eea6121a
AM		 7626 ppc64_tlsld_got (ibfd)->offset = s->size;
7627 s->size += 16;
e717da7e
AM		 7628 if (info->shared)
7629 {
7630 srel = ppc64_elf_tdata (ibfd)->relgot;
eea6121a 7631 srel->size += sizeof (Elf64_External_Rela);
e717da7e
AM		 7632 }
7633 }
7634 else
7635 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
7636
65f38f15
AM		 7637 for (s = ibfd->sections; s != NULL; s = s->next)
7638 {
ec338859 7639 struct ppc_dyn_relocs *p;
65f38f15 7640
ec338859
AM		 7641 for (p = *((struct ppc_dyn_relocs **)
7642 &elf_section_data (s)->local_dynrel);
7643 p != NULL;
7644 p = p->next)
65f38f15 7645 {
ec338859
AM		 7646 if (!bfd_is_abs_section (p->sec)
7647 && bfd_is_abs_section (p->sec->output_section))
7648 {
7649 /* Input section has been discarded, either because
7650 it is a copy of a linkonce section or due to
7651 linker script /DISCARD/, so we'll be discarding
7652 the relocs too. */
7653 }
248866a8 7654 else if (p->count != 0)
ec338859
AM		 7655 {
7656 srel = elf_section_data (p->sec)->sreloc;
eea6121a 7657 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 7658 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
7659 info->flags |= DF_TEXTREL;
ec338859 7660 }
65f38f15
AM		 7661 }
7662 }
7663
411e1bfb
AM		 7664 lgot_ents = elf_local_got_ents (ibfd);
7665 if (!lgot_ents)
65f38f15
AM		 7666 continue;
7667
7668 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7669 locsymcount = symtab_hdr->sh_info;
411e1bfb 7670 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 7671 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 7672 s = ppc64_elf_tdata (ibfd)->got;
7673 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 7674 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 7675 {
411e1bfb
AM		 7676 struct got_entry *ent;
7677
7678 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
7679 if (ent->got.refcount > 0)
7680 {
e7b938ca 7681 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 7682 {
e717da7e 7683 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 7684 {
eea6121a
AM		 7685 ppc64_tlsld_got (ibfd)->offset = s->size;
7686 s->size += 16;
411e1bfb 7687 if (info->shared)
eea6121a 7688 srel->size += sizeof (Elf64_External_Rela);
411e1bfb 7689 }
e717da7e 7690 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM		 7691 }
7692 else
7693 {
eea6121a 7694 ent->got.offset = s->size;
e7b938ca 7695 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb 7696 {
eea6121a 7697 s->size += 16;
411e1bfb 7698 if (info->shared)
eea6121a 7699 srel->size += 2 * sizeof (Elf64_External_Rela);
411e1bfb
AM		 7700 }
7701 else
7702 {
eea6121a 7703 s->size += 8;
411e1bfb 7704 if (info->shared)
eea6121a 7705 srel->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 7706 }
7707 }
7708 }
7709 else
7710 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 7711 }
7712 }
7713
7714 /* Allocate global sym .plt and .got entries, and space for global
7715 sym dynamic relocs. */
4ce794b7 7716 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM		 7717
7718 /* We now have determined the sizes of the various dynamic sections.
7719 Allocate memory for them. */
b34976b6 7720 relocs = FALSE;
65f38f15
AM		 7721 for (s = dynobj->sections; s != NULL; s = s->next)
7722 {
7723 if ((s->flags & SEC_LINKER_CREATED) == 0)
7724 continue;
7725
4ce794b7 7726 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 7727 /* These haven't been allocated yet; don't strip. */
7728 continue;
e717da7e
AM		 7729 else if (s == htab->got
7730 || s == htab->plt
c456f082
AM		 7731 || s == htab->glink
7732 || s == htab->dynbss)
65f38f15
AM		 7733 {
7734 /* Strip this section if we don't need it; see the
7735 comment below. */
5bd4f169 7736 }
65f38f15 7737 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169 7738 {
c456f082 7739 if (s->size != 0)
5bd4f169 7740 {
4ce794b7 7741 if (s != htab->relplt)
b34976b6 7742 relocs = TRUE;
5bd4f169
AM		 7743
7744 /* We use the reloc_count field as a counter if we need
7745 to copy relocs into the output file. */
7746 s->reloc_count = 0;
7747 }
7748 }
65f38f15 7749 else
5bd4f169
AM		 7750 {
7751 /* It's not one of our sections, so don't allocate space. */
7752 continue;
7753 }
7754
eea6121a 7755 if (s->size == 0)
5bd4f169 7756 {
c456f082
AM		 7757 /* If we don't need this section, strip it from the
7758 output file. This is mostly to handle .rela.bss and
7759 .rela.plt. We must create both sections in
7760 create_dynamic_sections, because they must be created
7761 before the linker maps input sections to output
7762 sections. The linker does that before
7763 adjust_dynamic_symbol is called, and it is that
7764 function which decides whether anything needs to go
7765 into these sections. */
8423293d 7766 s->flags |= SEC_EXCLUDE;
5bd4f169
AM		 7767 continue;
7768 }
7769
c456f082 7770 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5f333394
AM		 7771 continue;
7772
65f38f15
AM		 7773 /* Allocate memory for the section contents. We use bfd_zalloc
7774 here in case unused entries are not reclaimed before the
7775 section's contents are written out. This should not happen,
411e1bfb
AM		 7776 but this way if it does we get a R_PPC64_NONE reloc in .rela
7777 sections instead of garbage.
7778 We also rely on the section contents being zero when writing
7779 the GOT. */
eea6121a 7780 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 7781 if (s->contents == NULL)
b34976b6 7782 return FALSE;
5bd4f169
AM		 7783 }
7784
e717da7e
AM		 7785 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7786 {
ee75fd95 7787 if (!is_ppc64_elf_target (ibfd->xvec))
7b53ace3
AM		 7788 continue;
7789
e717da7e
AM		 7790 s = ppc64_elf_tdata (ibfd)->got;
7791 if (s != NULL && s != htab->got)
7792 {
eea6121a 7793 if (s->size == 0)
8423293d 7794 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 7795 else
7796 {
eea6121a 7797 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 7798 if (s->contents == NULL)
7799 return FALSE;
7800 }
7801 }
7802 s = ppc64_elf_tdata (ibfd)->relgot;
7803 if (s != NULL)
7804 {
eea6121a 7805 if (s->size == 0)
8423293d 7806 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 7807 else
7808 {
eea6121a 7809 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 7810 if (s->contents == NULL)
7811 return FALSE;
7812 relocs = TRUE;
7813 s->reloc_count = 0;
7814 }
7815 }
7816 }
7817
e86ce104 7818 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 7819 {
7820 /* Add some entries to the .dynamic section. We fill in the
7821 values later, in ppc64_elf_finish_dynamic_sections, but we
7822 must add the entries now so that we get the correct size for
7823 the .dynamic section. The DT_DEBUG entry is filled in by the
7824 dynamic linker and used by the debugger. */
dc810e39 7825#define add_dynamic_entry(TAG, VAL) \
5a580b3a 7826 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 7827
36af4a4e 7828 if (info->executable)
5bd4f169 7829 {
dc810e39 7830 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 7831 return FALSE;
5bd4f169
AM		 7832 }
7833
eea6121a 7834 if (htab->plt != NULL && htab->plt->size != 0)
5bd4f169 7835 {
dc810e39
AM		 7836 if (!add_dynamic_entry (DT_PLTGOT, 0)
7837 || !add_dynamic_entry (DT_PLTRELSZ, 0)
7838 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 7839 || !add_dynamic_entry (DT_JMPREL, 0)
7840 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 7841 return FALSE;
5bd4f169
AM		 7842 }
7843
19397422
AM		 7844 if (NO_OPD_RELOCS)
7845 {
7846 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
7847 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 7848 return FALSE;
19397422
AM		 7849 }
7850
5bd4f169
AM		 7851 if (relocs)
7852 {
dc810e39
AM		 7853 if (!add_dynamic_entry (DT_RELA, 0)
7854 || !add_dynamic_entry (DT_RELASZ, 0)
7855 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 7856 return FALSE;
5bd4f169 7857
65f38f15
AM		 7858 /* If any dynamic relocs apply to a read-only section,
7859 then we need a DT_TEXTREL entry. */
248866a8 7860 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 7861 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 7862
65f38f15 7863 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 7864 {
65f38f15 7865 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 7866 return FALSE;
5bd4f169 7867 }
5bd4f169 7868 }
5bd4f169 7869 }
65f38f15 7870#undef add_dynamic_entry
5bd4f169 7871
b34976b6 7872 return TRUE;
5bd4f169
AM		 7873}
7874
721956f4 7875/* Determine the type of stub needed, if any, for a call. */
5bd4f169 7876
4ce794b7
AM		 7877static inline enum ppc_stub_type
7878ppc_type_of_stub (asection *input_sec,
7879 const Elf_Internal_Rela *rel,
7880 struct ppc_link_hash_entry **hash,
7881 bfd_vma destination)
5bd4f169 7882{
721956f4
AM		 7883 struct ppc_link_hash_entry *h = *hash;
7884 bfd_vma location;
7885 bfd_vma branch_offset;
7886 bfd_vma max_branch_offset;
4ce794b7 7887 enum elf_ppc64_reloc_type r_type;
5bd4f169 7888
721956f4
AM		 7889 if (h != NULL)
7890 {
7891 if (h->oh != NULL
8387904d
AM		 7892 && h->oh->is_func_descriptor)
7893 h = h->oh;
7894
7895 if (h->elf.dynindx != -1)
5bd4f169 7896 {
411e1bfb 7897 struct plt_entry *ent;
8387904d
AM		 7898
7899 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 7900 if (ent->addend == rel->r_addend
7901 && ent->plt.offset != (bfd_vma) -1)
7902 {
8387904d 7903 *hash = h;
411e1bfb
AM		 7904 return ppc_stub_plt_call;
7905 }
5bd4f169
AM		 7906 }
7907
ee7de3e6
AM		 7908 if (!(h->elf.root.type == bfd_link_hash_defined
7909 || h->elf.root.type == bfd_link_hash_defweak)
7910 || h->elf.root.u.def.section->output_section == NULL)
721956f4 7911 return ppc_stub_none;
5d1634d7 7912 }
5d1634d7 7913
721956f4
AM		 7914 /* Determine where the call point is. */
7915 location = (input_sec->output_offset
7916 + input_sec->output_section->vma
7917 + rel->r_offset);
5d1634d7 7918
721956f4
AM		 7919 branch_offset = destination - location;
7920 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 7921
721956f4
AM		 7922 /* Determine if a long branch stub is needed. */
7923 max_branch_offset = 1 << 25;
4ce794b7 7924 if (r_type != R_PPC64_REL24)
721956f4 7925 max_branch_offset = 1 << 15;
5d1634d7 7926
721956f4
AM		 7927 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
7928 /* We need a stub. Figure out whether a long_branch or plt_branch
7929 is needed later. */
7930 return ppc_stub_long_branch;
5d1634d7 7931
721956f4 7932 return ppc_stub_none;
5d1634d7
AM		 7933}
7934
7935/* Build a .plt call stub. */
7936
4ce794b7
AM		 7937static inline bfd_byte *
7938build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM		 7939{
7940#define PPC_LO(v) ((v) & 0xffff)
7941#define PPC_HI(v) (((v) >> 16) & 0xffff)
7942#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7943
5d1634d7 7944 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 7945 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM		 7946 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
7947 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 7948 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 7949 offset += 8;
7950 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
7951 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 7952 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 7953 offset += 8;
7954 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
7955 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
7956 bfd_put_32 (obfd, BCTR, p), p += 4;
7957 return p;
7958}
7959
b34976b6 7960static bfd_boolean
4ce794b7 7961ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 7962{
721956f4
AM		 7963 struct ppc_stub_hash_entry *stub_entry;
7964 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 7965 struct bfd_link_info *info;
7966 struct ppc_link_hash_table *htab;
721956f4
AM		 7967 bfd_byte *loc;
7968 bfd_byte *p;
7969 unsigned int indx;
411e1bfb 7970 struct plt_entry *ent;
ee75fd95 7971 bfd_vma dest, off;
721956f4 7972 int size;
5d1634d7 7973
721956f4
AM		 7974 /* Massage our args to the form they really have. */
7975 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 7976 info = in_arg;
5d1634d7 7977
5d1634d7
AM		 7978 htab = ppc_hash_table (info);
7979
721956f4 7980 /* Make a note of the offset within the stubs for this entry. */
eea6121a 7981 stub_entry->stub_offset = stub_entry->stub_sec->size;
97b639ba 7982 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 7983
4ce794b7 7984 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 7985 switch (stub_entry->stub_type)
5d1634d7 7986 {
721956f4 7987 case ppc_stub_long_branch:
ad8e1ba5 7988 case ppc_stub_long_branch_r2off:
721956f4 7989 /* Branches are relative. This is where we are going to. */
ee75fd95
AM		 7990 off = dest = (stub_entry->target_value
7991 + stub_entry->target_section->output_offset
7992 + stub_entry->target_section->output_section->vma);
5d1634d7 7993
721956f4
AM		 7994 /* And this is where we are coming from. */
7995 off -= (stub_entry->stub_offset
97b639ba
AM		 7996 + stub_entry->stub_sec->output_offset
7997 + stub_entry->stub_sec->output_section->vma);
e86ce104 7998
ad8e1ba5
AM		 7999 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
8000 size = 4;
8001 else
8002 {
8003 bfd_vma r2off;
8004
8005 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8006 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 8007 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 8008 loc += 4;
97b639ba 8009 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 8010 loc += 4;
97b639ba 8011 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 8012 loc += 4;
8013 off -= 12;
8014 size = 16;
8015 }
97b639ba 8016 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5 8017
5c3dead3
AM		 8018 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8019 {
8020 (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"),
8021 stub_entry->root.string);
8022 htab->stub_error = TRUE;
8023 return FALSE;
8024 }
ee75fd95
AM		 8025
8026 if (info->emitrelocations)
8027 {
8028 Elf_Internal_Rela *relocs, *r;
8029 struct bfd_elf_section_data *elfsec_data;
8030
8031 elfsec_data = elf_section_data (stub_entry->stub_sec);
8032 relocs = elfsec_data->relocs;
8033 if (relocs == NULL)
8034 {
8035 bfd_size_type relsize;
8036 relsize = stub_entry->stub_sec->reloc_count * sizeof (*relocs);
8037 relocs = bfd_alloc (htab->stub_bfd, relsize);
8038 if (relocs == NULL)
8039 return FALSE;
8040 elfsec_data->relocs = relocs;
8041 elfsec_data->rel_hdr.sh_size = relsize;
8042 elfsec_data->rel_hdr.sh_entsize = 24;
8043 stub_entry->stub_sec->reloc_count = 0;
8044 }
8045 r = relocs + stub_entry->stub_sec->reloc_count;
8046 stub_entry->stub_sec->reloc_count += 1;
8047 r->r_offset = loc - stub_entry->stub_sec->contents;
8048 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
8049 r->r_addend = dest;
8050 if (stub_entry->h != NULL)
8051 {
8052 struct elf_link_hash_entry **hashes;
8053 unsigned long symndx;
8054 struct ppc_link_hash_entry *h;
8055
8056 hashes = elf_sym_hashes (htab->stub_bfd);
8057 if (hashes == NULL)
8058 {
8059 bfd_size_type hsize;
8060
8061 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
8062 hashes = bfd_zalloc (htab->stub_bfd, hsize);
8063 if (hashes == NULL)
8064 return FALSE;
8065 elf_sym_hashes (htab->stub_bfd) = hashes;
8066 htab->stub_globals = 1;
8067 }
8068 symndx = htab->stub_globals++;
8069 h = stub_entry->h;
8070 hashes[symndx] = &h->elf;
8071 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
8072 if (h->oh != NULL && h->oh->is_func)
8073 h = h->oh;
8074 if (h->elf.root.u.def.section != stub_entry->target_section)
8075 /* H is an opd symbol. The addend must be zero. */
8076 r->r_addend = 0;
8077 else
8078 {
8079 off = (h->elf.root.u.def.value
8080 + h->elf.root.u.def.section->output_offset
8081 + h->elf.root.u.def.section->output_section->vma);
8082 r->r_addend -= off;
8083 }
8084 }
8085 }
721956f4 8086 break;
e86ce104 8087
721956f4 8088 case ppc_stub_plt_branch:
ad8e1ba5 8089 case ppc_stub_plt_branch_r2off:
721956f4
AM		 8090 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8091 stub_entry->root.string + 9,
b34976b6 8092 FALSE, FALSE);
721956f4
AM		 8093 if (br_entry == NULL)
8094 {
8095 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
5c3dead3 8096 stub_entry->root.string);
b34976b6
AM		 8097 htab->stub_error = TRUE;
8098 return FALSE;
721956f4
AM		 8099 }
8100
8101 off = (stub_entry->target_value
8102 + stub_entry->target_section->output_offset
8103 + stub_entry->target_section->output_section->vma);
8104
4ce794b7
AM		 8105 bfd_put_64 (htab->brlt->owner, off,
8106 htab->brlt->contents + br_entry->offset);
721956f4 8107
ee75fd95 8108 if (htab->relbrlt != NULL)
721956f4
AM		 8109 {
8110 /* Create a reloc for the branch lookup table entry. */
8111 Elf_Internal_Rela rela;
ad8e1ba5 8112 bfd_byte *rl;
5d1634d7 8113
721956f4 8114 rela.r_offset = (br_entry->offset
4ce794b7
AM		 8115 + htab->brlt->output_offset
8116 + htab->brlt->output_section->vma);
721956f4
AM		 8117 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
8118 rela.r_addend = off;
8119
4ce794b7
AM		 8120 rl = htab->relbrlt->contents;
8121 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
8122 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM		 8123 }
8124
8125 off = (br_entry->offset
4ce794b7
AM		 8126 + htab->brlt->output_offset
8127 + htab->brlt->output_section->vma
8128 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 8129 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8130
ad8e1ba5 8131 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 8132 {
8133 (*_bfd_error_handler)
e86ce104 8134 (_("linkage table error against `%s'"),
721956f4 8135 stub_entry->root.string);
5d1634d7 8136 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 8137 htab->stub_error = TRUE;
8138 return FALSE;
5d1634d7 8139 }
41bd81ab 8140
721956f4 8141 indx = off;
ad8e1ba5
AM		 8142 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8143 {
97b639ba 8144 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 8145 loc += 4;
97b639ba 8146 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5
AM		 8147 size = 16;
8148 }
8149 else
8150 {
8151 bfd_vma r2off;
8152
8153 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8154 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 8155 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 8156 loc += 4;
97b639ba 8157 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 8158 loc += 4;
97b639ba 8159 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 8160 loc += 4;
97b639ba 8161 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 8162 loc += 4;
97b639ba 8163 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 8164 size = 28;
8165 }
8166 loc += 4;
97b639ba 8167 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 8168 loc += 4;
97b639ba 8169 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 8170 break;
5d1634d7 8171
721956f4 8172 case ppc_stub_plt_call:
c862ae31
AM		 8173 /* Do the best we can for shared libraries built without
8174 exporting ".foo" for each "foo". This can happen when symbol
8175 versioning scripts strip all bar a subset of symbols. */
8387904d
AM		 8176 if (stub_entry->h->oh != NULL
8177 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined
34814b9f 8178 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak)
c862ae31
AM		 8179 {
8180 /* Point the symbol at the stub. There may be multiple stubs,
8181 we don't really care; The main thing is to make this sym
8f3bab57
AM		 8182 defined somewhere. Maybe defining the symbol in the stub
8183 section is a silly idea. If we didn't do this, htab->top_id
8184 could disappear. */
34814b9f
AM		 8185 stub_entry->h->oh->elf.root.type = bfd_link_hash_defined;
8186 stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec;
8187 stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset;
c862ae31
AM		 8188 }
8189
721956f4 8190 /* Now build the stub. */
411e1bfb
AM		 8191 off = (bfd_vma) -1;
8192 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8193 if (ent->addend == stub_entry->addend)
8194 {
8195 off = ent->plt.offset;
8196 break;
8197 }
721956f4
AM		 8198 if (off >= (bfd_vma) -2)
8199 abort ();
8200
8201 off &= ~ (bfd_vma) 1;
4ce794b7
AM		 8202 off += (htab->plt->output_offset
8203 + htab->plt->output_section->vma
8204 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 8205 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8206
ad8e1ba5 8207 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 8208 {
8209 (*_bfd_error_handler)
8210 (_("linkage table error against `%s'"),
8211 stub_entry->h->elf.root.root.string);
8212 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 8213 htab->stub_error = TRUE;
8214 return FALSE;
721956f4
AM		 8215 }
8216
97b639ba 8217 p = build_plt_stub (htab->stub_bfd, loc, off);
721956f4
AM		 8218 size = p - loc;
8219 break;
8220
8221 default:
8222 BFD_FAIL ();
b34976b6 8223 return FALSE;
721956f4
AM		 8224 }
8225
eea6121a 8226 stub_entry->stub_sec->size += size;
97b639ba 8227
ee75fd95 8228 if (htab->emit_stub_syms)
97b639ba
AM		 8229 {
8230 struct elf_link_hash_entry *h;
ee75fd95
AM		 8231 size_t len1, len2;
8232 char *name;
8233 const char *const stub_str[] = { "long_branch",
8234 "long_branch_r2off",
8235 "plt_branch",
8236 "plt_branch_r2off",
8237 "plt_call" };
8238
8239 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
8240 len2 = strlen (stub_entry->root.string);
8241 name = bfd_malloc (len1 + len2 + 2);
8242 if (name == NULL)
8243 return FALSE;
8244 memcpy (name, stub_entry->root.string, 9);
8245 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
8246 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
8247 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
97b639ba
AM		 8248 if (h == NULL)
8249 return FALSE;
8250 if (h->root.type == bfd_link_hash_new)
8251 {
8252 h->root.type = bfd_link_hash_defined;
8253 h->root.u.def.section = stub_entry->stub_sec;
8254 h->root.u.def.value = stub_entry->stub_offset;
f5385ebf
AM		 8255 h->ref_regular = 1;
8256 h->def_regular = 1;
8257 h->ref_regular_nonweak = 1;
8258 h->forced_local = 1;
8259 h->non_elf = 0;
97b639ba
AM		 8260 }
8261 }
8262
b34976b6 8263 return TRUE;
721956f4
AM		 8264}
8265
8266/* As above, but don't actually build the stub. Just bump offset so
8267 we know stub section sizes, and select plt_branch stubs where
8268 long_branch stubs won't do. */
8269
b34976b6 8270static bfd_boolean
4ce794b7 8271ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 8272{
8273 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 8274 struct bfd_link_info *info;
721956f4
AM		 8275 struct ppc_link_hash_table *htab;
8276 bfd_vma off;
8277 int size;
8278
8279 /* Massage our args to the form they really have. */
8280 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 8281 info = in_arg;
8282
8283 htab = ppc_hash_table (info);
721956f4
AM		 8284
8285 if (stub_entry->stub_type == ppc_stub_plt_call)
8286 {
411e1bfb 8287 struct plt_entry *ent;
58ac9f71 8288 off = (bfd_vma) -1;
411e1bfb
AM		 8289 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8290 if (ent->addend == stub_entry->addend)
8291 {
8292 off = ent->plt.offset & ~(bfd_vma) 1;
8293 break;
8294 }
58ac9f71 8295 if (off >= (bfd_vma) -2)
411e1bfb 8296 abort ();
4ce794b7
AM		 8297 off += (htab->plt->output_offset
8298 + htab->plt->output_section->vma
8299 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 8300 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8301
ad8e1ba5 8302 size = PLT_CALL_STUB_SIZE;
4ce794b7 8303 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM		 8304 size += 4;
8305 }
8306 else
8307 {
ad8e1ba5
AM		 8308 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
8309 variants. */
721956f4
AM		 8310 off = (stub_entry->target_value
8311 + stub_entry->target_section->output_offset
8312 + stub_entry->target_section->output_section->vma);
eea6121a 8313 off -= (stub_entry->stub_sec->size
721956f4
AM		 8314 + stub_entry->stub_sec->output_offset
8315 + stub_entry->stub_sec->output_section->vma);
8316
ad8e1ba5
AM		 8317 /* Reset the stub type from the plt variant in case we now
8318 can reach with a shorter stub. */
8319 if (stub_entry->stub_type >= ppc_stub_plt_branch)
8320 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
8321
8322 size = 4;
8323 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
8324 {
8325 off -= 12;
8326 size = 16;
8327 }
8328
8329 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 8330 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8331 {
8332 struct ppc_branch_hash_entry *br_entry;
8333
8334 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8335 stub_entry->root.string + 9,
b34976b6 8336 TRUE, FALSE);
721956f4
AM		 8337 if (br_entry == NULL)
8338 {
8339 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
5c3dead3 8340 stub_entry->root.string);
b34976b6
AM		 8341 htab->stub_error = TRUE;
8342 return FALSE;
721956f4
AM		 8343 }
8344
8345 if (br_entry->iter != htab->stub_iteration)
8346 {
8347 br_entry->iter = htab->stub_iteration;
eea6121a
AM		 8348 br_entry->offset = htab->brlt->size;
8349 htab->brlt->size += 8;
63bc6f6c 8350
ee75fd95 8351 if (htab->relbrlt != NULL)
eea6121a 8352 htab->relbrlt->size += sizeof (Elf64_External_Rela);
721956f4 8353 }
ad8e1ba5
AM		 8354
8355 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 8356 size = 16;
ad8e1ba5
AM		 8357 if (stub_entry->stub_type != ppc_stub_plt_branch)
8358 size = 28;
721956f4 8359 }
ee75fd95
AM		 8360
8361 if (info->emitrelocations
8362 && (stub_entry->stub_type == ppc_stub_long_branch
8363 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
8364 stub_entry->stub_sec->reloc_count += 1;
721956f4
AM		 8365 }
8366
eea6121a 8367 stub_entry->stub_sec->size += size;
b34976b6 8368 return TRUE;
721956f4
AM		 8369}
8370
8371/* Set up various things so that we can make a list of input sections
8372 for each output section included in the link. Returns -1 on error,
cedb70c5 8373 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 8374
8375int
4c52953f
AM		 8376ppc64_elf_setup_section_lists (bfd *output_bfd,
8377 struct bfd_link_info *info,
8378 int no_multi_toc)
721956f4
AM		 8379{
8380 bfd *input_bfd;
734b6cf9 8381 int top_id, top_index, id;
721956f4 8382 asection *section;
734b6cf9 8383 asection **input_list;
721956f4
AM		 8384 bfd_size_type amt;
8385 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8386
4c52953f
AM		 8387 htab->no_multi_toc = no_multi_toc;
8388
4ce794b7 8389 if (htab->brlt == NULL)
721956f4
AM		 8390 return 0;
8391
1e2f5b6e 8392 /* Find the top input section id. */
3d6f9012 8393 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 8394 input_bfd != NULL;
8395 input_bfd = input_bfd->link_next)
8396 {
721956f4
AM		 8397 for (section = input_bfd->sections;
8398 section != NULL;
8399 section = section->next)
8400 {
8401 if (top_id < section->id)
8402 top_id = section->id;
8403 }
8404 }
721956f4 8405
8f3bab57 8406 htab->top_id = top_id;
721956f4 8407 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 8408 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 8409 if (htab->stub_group == NULL)
8410 return -1;
8411
3d6f9012
AM		 8412 /* Set toc_off for com, und, abs and ind sections. */
8413 for (id = 0; id < 3; id++)
8414 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 8415
3d6f9012 8416 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 8417
8418 /* We can't use output_bfd->section_count here to find the top output
8419 section index as some sections may have been removed, and
8423293d 8420 strip_excluded_output_sections doesn't renumber the indices. */
734b6cf9
AM		 8421 for (section = output_bfd->sections, top_index = 0;
8422 section != NULL;
8423 section = section->next)
8424 {
8425 if (top_index < section->index)
8426 top_index = section->index;
8427 }
8428
8429 htab->top_index = top_index;
8430 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 8431 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 8432 htab->input_list = input_list;
8433 if (input_list == NULL)
8434 return -1;
8435
721956f4
AM		 8436 return 1;
8437}
8438
e717da7e
AM		 8439/* The linker repeatedly calls this function for each TOC input section
8440 and linker generated GOT section. Group input bfds such that the toc
8441 within a group is less than 64k in size. Will break with cute linker
8442 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 8443
8444void
4ce794b7 8445ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 8446{
8447 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8448
4c52953f
AM		 8449 if (!htab->no_multi_toc)
8450 {
8451 bfd_vma addr = isec->output_offset + isec->output_section->vma;
8452 bfd_vma off = addr - htab->toc_curr;
8453
8454 if (off + isec->size > 0x10000)
8455 htab->toc_curr = addr;
99877b66 8456
4c52953f
AM		 8457 elf_gp (isec->owner) = (htab->toc_curr
8458 - elf_gp (isec->output_section->owner)
8459 + TOC_BASE_OFF);
8460 }
ad8e1ba5
AM		 8461}
8462
8463/* Called after the last call to the above function. */
8464
8465void
4c52953f 8466ppc64_elf_reinit_toc (bfd *output_bfd, struct bfd_link_info *info)
ad8e1ba5
AM		 8467{
8468 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5 8469
4c52953f
AM		 8470 htab->multi_toc_needed = htab->toc_curr != elf_gp (output_bfd);
8471
ad8e1ba5
AM		 8472 /* toc_curr tracks the TOC offset used for code sections below in
8473 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 8474 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 8475}
8476
9b5ecbd0
AM		 8477/* No toc references were found in ISEC. If the code in ISEC makes no
8478 calls, then there's no need to use toc adjusting stubs when branching
8479 into ISEC. Actually, indirect calls from ISEC are OK as they will
4c52953f
AM		 8480 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
8481 needed, and 2 if a cyclical call-graph was found but no other reason
8482 for a stub was detected. If called from the top level, a return of
8483 2 means the same as a return of 0. */
9b5ecbd0
AM		 8484
8485static int
4ce794b7 8486toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0 8487{
4c52953f
AM		 8488 Elf_Internal_Rela *relstart, *rel;
8489 Elf_Internal_Sym *local_syms;
9b5ecbd0 8490 int ret;
4c52953f 8491 struct ppc_link_hash_table *htab;
9b5ecbd0 8492
772119ce
AM		 8493 /* We know none of our code bearing sections will need toc stubs. */
8494 if ((isec->flags & SEC_LINKER_CREATED) != 0)
8495 return 0;
8496
eea6121a 8497 if (isec->size == 0)
082c50f8
AM		 8498 return 0;
8499
4c52953f
AM		 8500 if (isec->output_section == NULL)
8501 return 0;
8502
9b5ecbd0
AM		 8503 /* Hack for linux kernel. .fixup contains branches, but only back to
8504 the function that hit an exception. */
4c52953f
AM		 8505 if (strcmp (isec->name, ".fixup") == 0)
8506 return 0;
9b5ecbd0 8507
4c52953f
AM		 8508 if (isec->reloc_count == 0)
8509 return 0;
8510
8511 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
8512 info->keep_memory);
8513 if (relstart == NULL)
8514 return -1;
8515
8516 /* Look for branches to outside of this section. */
8517 local_syms = NULL;
8518 ret = 0;
8519 htab = ppc_hash_table (info);
8520 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
9b5ecbd0 8521 {
4c52953f
AM		 8522 enum elf_ppc64_reloc_type r_type;
8523 unsigned long r_symndx;
8524 struct elf_link_hash_entry *h;
8525 Elf_Internal_Sym *sym;
8526 asection *sym_sec;
8527 long *opd_adjust;
8528 bfd_vma sym_value;
8529 bfd_vma dest;
8530
8531 r_type = ELF64_R_TYPE (rel->r_info);
8532 if (r_type != R_PPC64_REL24
8533 && r_type != R_PPC64_REL14
8534 && r_type != R_PPC64_REL14_BRTAKEN
8535 && r_type != R_PPC64_REL14_BRNTAKEN)
8536 continue;
8537
8538 r_symndx = ELF64_R_SYM (rel->r_info);
8539 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
8540 isec->owner))
9b5ecbd0 8541 {
4c52953f
AM		 8542 ret = -1;
8543 break;
9b5ecbd0 8544 }
9b5ecbd0 8545
2917689a
AM		 8546 /* Calls to dynamic lib functions go through a plt call stub
8547 that uses r2. Branches to undefined symbols might be a call
8548 using old-style dot symbols that can be satisfied by a plt
8549 call into a new-style dynamic library. */
4c52953f 8550 if (sym_sec == NULL)
2917689a
AM		 8551 {
8552 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
8553 if (eh != NULL
8554 && eh->oh != NULL
8555 && eh->oh->elf.plt.plist != NULL)
8556 {
8557 ret = 1;
8558 break;
8559 }
4c52953f 8560
2917689a
AM		 8561 /* Ignore other undefined symbols. */
8562 continue;
8563 }
8564
8565 /* Assume branches to other sections not included in the link need
8566 stubs too, to cover -R and absolute syms. */
4c52953f
AM		 8567 if (sym_sec->output_section == NULL)
8568 {
8569 ret = 1;
8570 break;
8571 }
8572
8573 if (h == NULL)
8574 sym_value = sym->st_value;
8575 else
8576 {
8577 if (h->root.type != bfd_link_hash_defined
8578 && h->root.type != bfd_link_hash_defweak)
8579 abort ();
8580 sym_value = h->root.u.def.value;
8581 }
8582 sym_value += rel->r_addend;
8583
8584 /* If this branch reloc uses an opd sym, find the code section. */
8585 opd_adjust = get_opd_info (sym_sec);
8586 if (opd_adjust != NULL)
8587 {
4c52953f
AM		 8588 if (h == NULL)
8589 {
8590 long adjust;
8591
8592 adjust = opd_adjust[sym->st_value / 8];
8593 if (adjust == -1)
8594 /* Assume deleted functions won't ever be called. */
8595 continue;
8596 sym_value += adjust;
8597 }
8598
8599 dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL);
8600 if (dest == (bfd_vma) -1)
8601 continue;
8602 }
8603 else
8604 dest = (sym_value
8605 + sym_sec->output_offset
8606 + sym_sec->output_section->vma);
8607
8608 /* Ignore branch to self. */
8609 if (sym_sec == isec)
8610 continue;
8611
8612 /* If the called function uses the toc, we need a stub. */
8613 if (sym_sec->has_toc_reloc
8614 || sym_sec->makes_toc_func_call)
8615 {
8616 ret = 1;
8617 break;
8618 }
8619
8620 /* Assume any branch that needs a long branch stub might in fact
8621 need a plt_branch stub. A plt_branch stub uses r2. */
8622 else if (dest - (isec->output_offset
8623 + isec->output_section->vma
8624 + rel->r_offset) + (1 << 25) >= (2 << 25))
9b5ecbd0
AM		 8625 {
8626 ret = 1;
8627 break;
8628 }
4c52953f
AM		 8629
8630 /* If calling back to a section in the process of being tested, we
8631 can't say for sure that no toc adjusting stubs are needed, so
8632 don't return zero. */
8633 else if (sym_sec->call_check_in_progress)
8634 ret = 2;
8635
8636 /* Branches to another section that itself doesn't have any TOC
8637 references are OK. Recursively call ourselves to check. */
8638 else if (sym_sec->id <= htab->top_id
8639 && htab->stub_group[sym_sec->id].toc_off == 0)
8640 {
8641 int recur;
8642
8643 /* Mark current section as indeterminate, so that other
8644 sections that call back to current won't be marked as
8645 known. */
8646 isec->call_check_in_progress = 1;
8647 recur = toc_adjusting_stub_needed (info, sym_sec);
8648 isec->call_check_in_progress = 0;
8649
8650 if (recur < 0)
8651 {
8652 /* An error. Exit. */
8653 ret = -1;
8654 break;
8655 }
8656 else if (recur <= 1)
8657 {
8658 /* Known result. Mark as checked and set section flag. */
8659 htab->stub_group[sym_sec->id].toc_off = 1;
8660 if (recur != 0)
8661 {
8662 sym_sec->makes_toc_func_call = 1;
8663 ret = 1;
8664 break;
8665 }
8666 }
8667 else
8668 {
8669 /* Unknown result. Continue checking. */
8670 ret = 2;
8671 }
8672 }
9b5ecbd0
AM		 8673 }
8674
4c52953f
AM		 8675 if (local_syms != NULL
8676 && (elf_tdata (isec->owner)->symtab_hdr.contents
8677 != (unsigned char *) local_syms))
8678 free (local_syms);
8679 if (elf_section_data (isec)->relocs != relstart)
8680 free (relstart);
8681
9b5ecbd0
AM		 8682 return ret;
8683}
8684
721956f4
AM		 8685/* The linker repeatedly calls this function for each input section,
8686 in the order that input sections are linked into output sections.
8687 Build lists of input sections to determine groupings between which
8688 we may insert linker stubs. */
8689
9b5ecbd0 8690bfd_boolean
4ce794b7 8691ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 8692{
8693 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8694
734b6cf9
AM		 8695 if ((isec->output_section->flags & SEC_CODE) != 0
8696 && isec->output_section->index <= htab->top_index)
721956f4 8697 {
734b6cf9 8698 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 8699 /* Steal the link_sec pointer for our list. */
721956f4 8700#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 8701 /* This happens to make the list in reverse order,
8702 which is what we want. */
734b6cf9
AM		 8703 PREV_SEC (isec) = *list;
8704 *list = isec;
721956f4 8705 }
ad8e1ba5 8706
4c52953f 8707 if (htab->multi_toc_needed)
9b5ecbd0 8708 {
4c52953f
AM		 8709 /* If a code section has a function that uses the TOC then we need
8710 to use the right TOC (obviously). Also, make sure that .opd gets
8711 the correct TOC value for R_PPC64_TOC relocs that don't have or
8712 can't find their function symbol (shouldn't ever happen now). */
8713 if (isec->has_toc_reloc || (isec->flags & SEC_CODE) == 0)
8714 {
8715 if (elf_gp (isec->owner) != 0)
8716 htab->toc_curr = elf_gp (isec->owner);
8717 }
8718 else if (htab->stub_group[isec->id].toc_off == 0)
8719 {
8720 int ret = toc_adjusting_stub_needed (info, isec);
8721 if (ret < 0)
8722 return FALSE;
8723 else
8724 isec->makes_toc_func_call = ret & 1;
8725 }
9b5ecbd0 8726 }
ad8e1ba5
AM		 8727
8728 /* Functions that don't use the TOC can belong in any TOC group.
8729 Use the last TOC base. This happens to make _init and _fini
8730 pasting work. */
8731 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 8732 return TRUE;
721956f4
AM		 8733}
8734
8735/* See whether we can group stub sections together. Grouping stub
8736 sections may result in fewer stubs. More importantly, we need to
8737 put all .init* and .fini* stubs at the beginning of the .init or
8738 .fini output sections respectively, because glibc splits the
8739 _init and _fini functions into multiple parts. Putting a stub in
8740 the middle of a function is not a good idea. */
8741
8742static void
4ce794b7
AM		 8743group_sections (struct ppc_link_hash_table *htab,
8744 bfd_size_type stub_group_size,
8745 bfd_boolean stubs_always_before_branch)
721956f4 8746{
734b6cf9
AM		 8747 asection **list = htab->input_list + htab->top_index;
8748 do
721956f4 8749 {
734b6cf9
AM		 8750 asection *tail = *list;
8751 while (tail != NULL)
721956f4 8752 {
734b6cf9
AM		 8753 asection *curr;
8754 asection *prev;
8755 bfd_size_type total;
8756 bfd_boolean big_sec;
8757 bfd_vma curr_toc;
8758
8759 curr = tail;
eea6121a 8760 total = tail->size;
5c3dead3
AM		 8761 big_sec = total > stub_group_size;
8762 if (big_sec)
8763 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
8764 tail->owner, tail);
734b6cf9
AM		 8765 curr_toc = htab->stub_group[tail->id].toc_off;
8766
8767 while ((prev = PREV_SEC (curr)) != NULL
8768 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM		 8769 < stub_group_size)
8770 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 8771 curr = prev;
8772
8773 /* OK, the size from the start of CURR to the end is less
8774 than stub_group_size and thus can be handled by one stub
8775 section. (or the tail section is itself larger than
8776 stub_group_size, in which case we may be toast.) We
8777 should really be keeping track of the total size of stubs
8778 added here, as stubs contribute to the final output
8779 section size. That's a little tricky, and this way will
8780 only break if stubs added make the total size more than
8781 2^25, ie. for the default stub_group_size, if stubs total
8782 more than 2097152 bytes, or nearly 75000 plt call stubs. */
8783 do
721956f4
AM		 8784 {
8785 prev = PREV_SEC (tail);
734b6cf9 8786 /* Set up this stub group. */
721956f4
AM		 8787 htab->stub_group[tail->id].link_sec = curr;
8788 }
734b6cf9
AM		 8789 while (tail != curr && (tail = prev) != NULL);
8790
8791 /* But wait, there's more! Input sections up to stub_group_size
8792 bytes before the stub section can be handled by it too.
8793 Don't do this if we have a really large section after the
8794 stubs, as adding more stubs increases the chance that
8795 branches may not reach into the stub section. */
8796 if (!stubs_always_before_branch && !big_sec)
8797 {
8798 total = 0;
8799 while (prev != NULL
8800 && ((total += tail->output_offset - prev->output_offset)
8801 < stub_group_size)
8802 && htab->stub_group[prev->id].toc_off == curr_toc)
8803 {
8804 tail = prev;
8805 prev = PREV_SEC (tail);
8806 htab->stub_group[tail->id].link_sec = curr;
8807 }
8808 }
8809 tail = prev;
721956f4
AM		 8810 }
8811 }
734b6cf9
AM		 8812 while (list-- != htab->input_list);
8813 free (htab->input_list);
721956f4
AM		 8814#undef PREV_SEC
8815}
8816
721956f4
AM		 8817/* Determine and set the size of the stub section for a final link.
8818
8819 The basic idea here is to examine all the relocations looking for
8820 PC-relative calls to a target that is unreachable with a "bl"
8821 instruction. */
8822
b34976b6 8823bfd_boolean
4ce794b7 8824ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 8825 struct bfd_link_info *info,
8826 bfd_signed_vma group_size,
8827 asection *(*add_stub_section) (const char *, asection *),
8828 void (*layout_sections_again) (void))
721956f4
AM		 8829{
8830 bfd_size_type stub_group_size;
b34976b6 8831 bfd_boolean stubs_always_before_branch;
721956f4
AM		 8832 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8833
8834 /* Stash our params away. */
721956f4
AM		 8835 htab->add_stub_section = add_stub_section;
8836 htab->layout_sections_again = layout_sections_again;
8837 stubs_always_before_branch = group_size < 0;
8838 if (group_size < 0)
8839 stub_group_size = -group_size;
8840 else
8841 stub_group_size = group_size;
8842 if (stub_group_size == 1)
8843 {
8844 /* Default values. */
58ac9f71
AM		 8845 if (stubs_always_before_branch)
8846 {
8847 stub_group_size = 0x1e00000;
8848 if (htab->has_14bit_branch)
8849 stub_group_size = 0x7800;
8850 }
8851 else
8852 {
8853 stub_group_size = 0x1c00000;
8854 if (htab->has_14bit_branch)
8855 stub_group_size = 0x7000;
8856 }
721956f4
AM		 8857 }
8858
8859 group_sections (htab, stub_group_size, stubs_always_before_branch);
8860
721956f4
AM		 8861 while (1)
8862 {
8863 bfd *input_bfd;
8864 unsigned int bfd_indx;
8865 asection *stub_sec;
721956f4
AM		 8866
8867 htab->stub_iteration += 1;
721956f4
AM		 8868
8869 for (input_bfd = info->input_bfds, bfd_indx = 0;
8870 input_bfd != NULL;
8871 input_bfd = input_bfd->link_next, bfd_indx++)
8872 {
8873 Elf_Internal_Shdr *symtab_hdr;
8874 asection *section;
6cdc0ccc 8875 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM		 8876
8877 /* We'll need the symbol table in a second. */
8878 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
8879 if (symtab_hdr->sh_info == 0)
8880 continue;
8881
721956f4
AM		 8882 /* Walk over each section attached to the input bfd. */
8883 for (section = input_bfd->sections;
8884 section != NULL;
8885 section = section->next)
8886 {
721956f4 8887 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 8888
8889 /* If there aren't any relocs, then there's nothing more
8890 to do. */
8891 if ((section->flags & SEC_RELOC) == 0
8892 || section->reloc_count == 0)
8893 continue;
8894
8895 /* If this section is a link-once section that will be
8896 discarded, then don't create any stubs. */
8897 if (section->output_section == NULL
8898 || section->output_section->owner != output_bfd)
8899 continue;
8900
1e2f5b6e
AM		 8901 /* Get the relocs. */
8902 internal_relocs
4ce794b7 8903 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 8904 info->keep_memory);
721956f4 8905 if (internal_relocs == NULL)
1e2f5b6e 8906 goto error_ret_free_local;
721956f4
AM		 8907
8908 /* Now examine each relocation. */
8909 irela = internal_relocs;
8910 irelaend = irela + section->reloc_count;
8911 for (; irela < irelaend; irela++)
8912 {
4ce794b7
AM		 8913 enum elf_ppc64_reloc_type r_type;
8914 unsigned int r_indx;
721956f4
AM		 8915 enum ppc_stub_type stub_type;
8916 struct ppc_stub_hash_entry *stub_entry;
8387904d 8917 asection *sym_sec, *code_sec;
721956f4
AM		 8918 bfd_vma sym_value;
8919 bfd_vma destination;
8843416a 8920 bfd_boolean ok_dest;
721956f4 8921 struct ppc_link_hash_entry *hash;
8387904d 8922 struct ppc_link_hash_entry *fdh;
411e1bfb
AM		 8923 struct elf_link_hash_entry *h;
8924 Elf_Internal_Sym *sym;
721956f4
AM		 8925 char *stub_name;
8926 const asection *id_sec;
8387904d 8927 long *opd_adjust;
721956f4
AM		 8928
8929 r_type = ELF64_R_TYPE (irela->r_info);
8930 r_indx = ELF64_R_SYM (irela->r_info);
8931
4ce794b7 8932 if (r_type >= R_PPC64_max)
721956f4
AM		 8933 {
8934 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 8935 goto error_ret_free_internal;
721956f4
AM		 8936 }
8937
8938 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 8939 if (r_type != R_PPC64_REL24
8940 && r_type != R_PPC64_REL14
8941 && r_type != R_PPC64_REL14_BRTAKEN
8942 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 8943 continue;
8944
8945 /* Now determine the call target, its name, value,
8946 section. */
411e1bfb
AM		 8947 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8948 r_indx, input_bfd))
8949 goto error_ret_free_internal;
8950 hash = (struct ppc_link_hash_entry *) h;
8951
8843416a 8952 ok_dest = FALSE;
8387904d 8953 fdh = NULL;
411e1bfb 8954 if (hash == NULL)
721956f4 8955 {
411e1bfb 8956 sym_value = sym->st_value;
8843416a 8957 ok_dest = TRUE;
721956f4
AM		 8958 }
8959 else
8960 {
411e1bfb 8961 sym_value = 0;
99877b66
AM		 8962 /* Recognise an old ABI func code entry sym, and
8963 use the func descriptor sym instead. */
ceb1f1ef 8964 if (hash->elf.root.root.string[0] == '.'
8387904d
AM		 8965 && (fdh = get_fdh (hash, htab)) != NULL)
8966 {
8387904d
AM		 8967 if (fdh->elf.root.type == bfd_link_hash_defined
8968 || fdh->elf.root.type == bfd_link_hash_defweak)
8969 {
8970 sym_sec = fdh->elf.root.u.def.section;
8971 sym_value = fdh->elf.root.u.def.value;
8972 if (sym_sec->output_section != NULL)
8973 ok_dest = TRUE;
8974 }
99877b66
AM		 8975 else
8976 fdh = NULL;
8387904d
AM		 8977 }
8978 else if (hash->elf.root.type == bfd_link_hash_defined
8979 || hash->elf.root.type == bfd_link_hash_defweak)
721956f4 8980 {
721956f4
AM		 8981 sym_value = hash->elf.root.u.def.value;
8982 if (sym_sec->output_section != NULL)
8843416a 8983 ok_dest = TRUE;
721956f4
AM		 8984 }
8985 else if (hash->elf.root.type == bfd_link_hash_undefweak)
8986 ;
8987 else if (hash->elf.root.type == bfd_link_hash_undefined)
8988 ;
8989 else
8990 {
8991 bfd_set_error (bfd_error_bad_value);
8992 goto error_ret_free_internal;
8993 }
8994 }
8995
8843416a
AM		 8996 destination = 0;
8997 if (ok_dest)
8998 {
8999 sym_value += irela->r_addend;
9000 destination = (sym_value
9001 + sym_sec->output_offset
9002 + sym_sec->output_section->vma);
9003 }
9004
8387904d
AM		 9005 code_sec = sym_sec;
9006 opd_adjust = get_opd_info (sym_sec);
9007 if (opd_adjust != NULL)
9008 {
9009 bfd_vma dest;
9010
9011 if (hash == NULL)
9012 {
3f764659 9013 long adjust = opd_adjust[sym_value / 8];
8387904d
AM		 9014 if (adjust == -1)
9015 continue;
9016 sym_value += adjust;
9017 }
9018 dest = opd_entry_value (sym_sec, sym_value,
9019 &code_sec, &sym_value);
9020 if (dest != (bfd_vma) -1)
9021 {
9022 destination = dest;
9023 if (fdh != NULL)
9024 {
9025 /* Fixup old ABI sym to point at code
9026 entry. */
99877b66 9027 hash->elf.root.type = bfd_link_hash_defweak;
8387904d
AM		 9028 hash->elf.root.u.def.section = code_sec;
9029 hash->elf.root.u.def.value = sym_value;
9030 }
9031 }
9032 }
9033
721956f4
AM		 9034 /* Determine what (if any) linker stub is needed. */
9035 stub_type = ppc_type_of_stub (section, irela, &hash,
9036 destination);
ad8e1ba5
AM		 9037
9038 if (stub_type != ppc_stub_plt_call)
9039 {
9040 /* Check whether we need a TOC adjusting stub.
9041 Since the linker pastes together pieces from
9042 different object files when creating the
9043 _init and _fini functions, it may be that a
9044 call to what looks like a local sym is in
9045 fact a call needing a TOC adjustment. */
8387904d
AM		 9046 if (code_sec != NULL
9047 && code_sec->output_section != NULL
9048 && (htab->stub_group[code_sec->id].toc_off
9b5ecbd0 9049 != htab->stub_group[section->id].toc_off)
4c52953f
AM		 9050 && (code_sec->has_toc_reloc
9051 || code_sec->makes_toc_func_call))
ad8e1ba5
AM		 9052 stub_type = ppc_stub_long_branch_r2off;
9053 }
9054
721956f4
AM		 9055 if (stub_type == ppc_stub_none)
9056 continue;
9057
411e1bfb
AM		 9058 /* __tls_get_addr calls might be eliminated. */
9059 if (stub_type != ppc_stub_plt_call
9060 && hash != NULL
8387904d
AM		 9061 && (hash == htab->tls_get_addr
9062 || hash == htab->tls_get_addr_fd)
411e1bfb
AM		 9063 && section->has_tls_reloc
9064 && irela != internal_relocs)
9065 {
9066 /* Get tls info. */
e7b938ca 9067 char *tls_mask;
411e1bfb 9068
0d4792f7 9069 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
411e1bfb
AM		 9070 irela - 1, input_bfd))
9071 goto error_ret_free_internal;
e7b938ca 9072 if (*tls_mask != 0)
411e1bfb
AM		 9073 continue;
9074 }
9075
721956f4
AM		 9076 /* Support for grouping stub sections. */
9077 id_sec = htab->stub_group[section->id].link_sec;
9078
9079 /* Get the name of this stub. */
9080 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
9081 if (!stub_name)
9082 goto error_ret_free_internal;
9083
9084 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 9085 stub_name, FALSE, FALSE);
721956f4
AM		 9086 if (stub_entry != NULL)
9087 {
9088 /* The proper stub has already been created. */
9089 free (stub_name);
9090 continue;
9091 }
9092
9093 stub_entry = ppc_add_stub (stub_name, section, htab);
9094 if (stub_entry == NULL)
9095 {
9096 free (stub_name);
6cdc0ccc
AM		 9097 error_ret_free_internal:
9098 if (elf_section_data (section)->relocs == NULL)
9099 free (internal_relocs);
9100 error_ret_free_local:
9101 if (local_syms != NULL
9102 && (symtab_hdr->contents
9103 != (unsigned char *) local_syms))
9104 free (local_syms);
b34976b6 9105 return FALSE;
721956f4
AM		 9106 }
9107
ad8e1ba5 9108 stub_entry->stub_type = stub_type;
721956f4 9109 stub_entry->target_value = sym_value;
8387904d 9110 stub_entry->target_section = code_sec;
721956f4 9111 stub_entry->h = hash;
411e1bfb 9112 stub_entry->addend = irela->r_addend;
ee75fd95
AM		 9113
9114 if (stub_entry->h != NULL)
9115 htab->stub_globals += 1;
721956f4
AM		 9116 }
9117
9118 /* We're done with the internal relocs, free them. */
6cdc0ccc 9119 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 9120 free (internal_relocs);
721956f4 9121 }
6cdc0ccc
AM		 9122
9123 if (local_syms != NULL
9124 && symtab_hdr->contents != (unsigned char *) local_syms)
9125 {
9126 if (!info->keep_memory)
9127 free (local_syms);
9128 else
9129 symtab_hdr->contents = (unsigned char *) local_syms;
9130 }
721956f4
AM		 9131 }
9132
5c3dead3 9133 /* We may have added some stubs. Find out the new size of the
721956f4
AM		 9134 stub sections. */
9135 for (stub_sec = htab->stub_bfd->sections;
9136 stub_sec != NULL;
9137 stub_sec = stub_sec->next)
e717da7e 9138 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
ee75fd95 9139 {
5c3dead3 9140 stub_sec->rawsize = stub_sec->size;
ee75fd95
AM		 9141 stub_sec->size = 0;
9142 stub_sec->reloc_count = 0;
9143 }
eea6121a
AM		 9144
9145 htab->brlt->size = 0;
ee75fd95 9146 if (htab->relbrlt != NULL)
eea6121a 9147 htab->relbrlt->size = 0;
721956f4 9148
63bc6f6c 9149 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4 9150
5c3dead3
AM		 9151 for (stub_sec = htab->stub_bfd->sections;
9152 stub_sec != NULL;
9153 stub_sec = stub_sec->next)
9154 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9155 && stub_sec->rawsize != stub_sec->size)
9156 break;
9157
9158 /* Exit from this loop when no stubs have been added, and no stubs
9159 have changed size. */
9160 if (stub_sec == NULL)
9161 break;
9162
721956f4
AM		 9163 /* Ask the linker to do its stuff. */
9164 (*htab->layout_sections_again) ();
9165 }
9166
c456f082 9167 /* It would be nice to strip htab->brlt from the output if the
afbe61cf
AM		 9168 section is empty, but it's too late. If we strip sections here,
9169 the dynamic symbol table is corrupted since the section symbol
9170 for the stripped section isn't written. */
721956f4 9171
b34976b6 9172 return TRUE;
721956f4
AM		 9173}
9174
9175/* Called after we have determined section placement. If sections
805fc799 9176 move, we'll be called again. Provide a value for TOCstart. */
721956f4 9177
805fc799 9178bfd_vma
4ce794b7 9179ppc64_elf_toc (bfd *obfd)
721956f4 9180{
805fc799
AM		 9181 asection *s;
9182 bfd_vma TOCstart;
721956f4 9183
805fc799
AM		 9184 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
9185 order. The TOC starts where the first of these sections starts. */
9186 s = bfd_get_section_by_name (obfd, ".got");
9187 if (s == NULL)
9188 s = bfd_get_section_by_name (obfd, ".toc");
9189 if (s == NULL)
9190 s = bfd_get_section_by_name (obfd, ".tocbss");
9191 if (s == NULL)
9192 s = bfd_get_section_by_name (obfd, ".plt");
9193 if (s == NULL)
9194 {
9195 /* This may happen for
9196 o references to TOC base (SYM@toc / TOC[tc0]) without a
9197 .toc directive
9198 o bad linker script
9199 o --gc-sections and empty TOC sections
9200
9201 FIXME: Warn user? */
9202
9203 /* Look for a likely section. We probably won't even be
9204 using TOCstart. */
9205 for (s = obfd->sections; s != NULL; s = s->next)
9206 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
9207 == (SEC_ALLOC | SEC_SMALL_DATA))
9208 break;
721956f4 9209 if (s == NULL)
805fc799
AM		 9210 for (s = obfd->sections; s != NULL; s = s->next)
9211 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
9212 == (SEC_ALLOC | SEC_SMALL_DATA))
9213 break;
721956f4 9214 if (s == NULL)
805fc799
AM		 9215 for (s = obfd->sections; s != NULL; s = s->next)
9216 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
9217 break;
721956f4 9218 if (s == NULL)
805fc799
AM		 9219 for (s = obfd->sections; s != NULL; s = s->next)
9220 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
9221 break;
9222 }
721956f4 9223
805fc799
AM		 9224 TOCstart = 0;
9225 if (s != NULL)
9226 TOCstart = s->output_section->vma + s->output_offset;
721956f4 9227
805fc799 9228 return TOCstart;
721956f4
AM		 9229}
9230
9231/* Build all the stubs associated with the current output file.
9232 The stubs are kept in a hash table attached to the main linker
9233 hash table. This function is called via gldelf64ppc_finish. */
9234
b34976b6 9235bfd_boolean
4ce794b7
AM		 9236ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
9237 struct bfd_link_info *info,
9238 char **stats)
5d1634d7
AM		 9239{
9240 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 9241 asection *stub_sec;
5d1634d7 9242 bfd_byte *p;
e717da7e 9243 int stub_sec_count = 0;
5d1634d7 9244
ad8e1ba5 9245 htab->emit_stub_syms = emit_stub_syms;
eea6121a
AM		 9246
9247 /* Allocate memory to hold the linker stubs. */
721956f4
AM		 9248 for (stub_sec = htab->stub_bfd->sections;
9249 stub_sec != NULL;
9250 stub_sec = stub_sec->next)
eea6121a
AM		 9251 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9252 && stub_sec->size != 0)
e717da7e 9253 {
eea6121a
AM		 9254 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
9255 if (stub_sec->contents == NULL)
9256 return FALSE;
9257 /* We want to check that built size is the same as calculated
9258 size. rawsize is a convenient location to use. */
9259 stub_sec->rawsize = stub_sec->size;
9260 stub_sec->size = 0;
e717da7e 9261 }
5d1634d7 9262
4ce794b7 9263 if (htab->plt != NULL)
5d1634d7 9264 {
9f951329 9265 unsigned int indx;
ad8e1ba5 9266 bfd_vma plt0;
9f951329 9267
721956f4 9268 /* Build the .glink plt call stub. */
4ce794b7
AM		 9269 plt0 = (htab->plt->output_section->vma
9270 + htab->plt->output_offset
9271 - (htab->glink->output_section->vma
9272 + htab->glink->output_offset
ad8e1ba5
AM		 9273 + GLINK_CALL_STUB_SIZE));
9274 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 9275 {
ad8e1ba5
AM		 9276 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
9277 bfd_set_error (bfd_error_bad_value);
9278 return FALSE;
721956f4 9279 }
721956f4 9280
97b639ba
AM		 9281 if (htab->emit_stub_syms)
9282 {
9283 struct elf_link_hash_entry *h;
9284 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
9285 if (h == NULL)
9286 return FALSE;
9287 if (h->root.type == bfd_link_hash_new)
9288 {
9289 h->root.type = bfd_link_hash_defined;
9290 h->root.u.def.section = htab->glink;
9291 h->root.u.def.value = 0;
f5385ebf
AM		 9292 h->ref_regular = 1;
9293 h->def_regular = 1;
9294 h->ref_regular_nonweak = 1;
9295 h->forced_local = 1;
9296 h->non_elf = 0;
97b639ba
AM		 9297 }
9298 }
4ce794b7
AM		 9299 p = htab->glink->contents;
9300 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 9301 p += 4;
4ce794b7 9302 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 9303 p += 4;
4ce794b7 9304 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 9305 p += 4;
4ce794b7 9306 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 9307 p += 4;
4ce794b7 9308 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 9309 p += 4;
4ce794b7 9310 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 9311 p += 4;
4ce794b7 9312 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 9313 p += 4;
4ce794b7 9314 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 9315 p += 4;
4ce794b7 9316 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 9317 p += 4;
4ce794b7 9318 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 9319 p += 4;
4ce794b7 9320 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 9321 p += 4;
4ce794b7 9322 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 9323 p += 4;
4ce794b7 9324 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 9325 p += 4;
4ce794b7 9326 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 9327 p += 4;
4ce794b7 9328 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 9329 p += 4;
4ce794b7 9330 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM		 9331 p += 4;
9332
9f951329
AM		 9333 /* Build the .glink lazy link call stubs. */
9334 indx = 0;
eea6121a 9335 while (p < htab->glink->contents + htab->glink->size)
9f951329
AM		 9336 {
9337 if (indx < 0x8000)
9338 {
4ce794b7 9339 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 9340 p += 4;
9341 }
9342 else
9343 {
4ce794b7 9344 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 9345 p += 4;
4ce794b7 9346 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 9347 p += 4;
9348 }
4ce794b7
AM		 9349 bfd_put_32 (htab->glink->owner,
9350 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 9351 indx++;
9f951329
AM		 9352 p += 4;
9353 }
eea6121a 9354 htab->glink->rawsize = p - htab->glink->contents;
5d1634d7 9355 }
5d1634d7 9356
eea6121a 9357 if (htab->brlt->size != 0)
721956f4 9358 {
4ce794b7 9359 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 9360 htab->brlt->size);
4ce794b7 9361 if (htab->brlt->contents == NULL)
b34976b6 9362 return FALSE;
721956f4 9363 }
ee75fd95 9364 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
63bc6f6c
AM		 9365 {
9366 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 9367 htab->relbrlt->size);
63bc6f6c
AM		 9368 if (htab->relbrlt->contents == NULL)
9369 return FALSE;
9370 }
5d1634d7 9371
721956f4
AM		 9372 /* Build the stubs as directed by the stub hash table. */
9373 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 9374
721956f4
AM		 9375 for (stub_sec = htab->stub_bfd->sections;
9376 stub_sec != NULL;
9377 stub_sec = stub_sec->next)
e717da7e
AM		 9378 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
9379 {
9380 stub_sec_count += 1;
eea6121a 9381 if (stub_sec->rawsize != stub_sec->size)
e717da7e
AM		 9382 break;
9383 }
5d1634d7 9384
721956f4 9385 if (stub_sec != NULL
eea6121a 9386 || htab->glink->rawsize != htab->glink->size)
5d1634d7 9387 {
b34976b6 9388 htab->stub_error = TRUE;
721956f4 9389 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 9390 }
721956f4 9391
d2a300cf
AM		 9392 if (htab->stub_error)
9393 return FALSE;
9394
9395 if (stats != NULL)
9396 {
9397 *stats = bfd_malloc (500);
9398 if (*stats == NULL)
9399 return FALSE;
9400
ee75fd95 9401 sprintf (*stats, _("linker stubs in %u group%s\n"
d2a300cf
AM		 9402 " branch %lu\n"
9403 " toc adjust %lu\n"
9404 " long branch %lu\n"
9405 " long toc adj %lu\n"
9406 " plt call %lu"),
e717da7e 9407 stub_sec_count,
ee75fd95 9408 stub_sec_count == 1 ? "" : "s",
4ce794b7
AM		 9409 htab->stub_count[ppc_stub_long_branch - 1],
9410 htab->stub_count[ppc_stub_long_branch_r2off - 1],
9411 htab->stub_count[ppc_stub_plt_branch - 1],
9412 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
9413 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 9414 }
9415 return TRUE;
5bd4f169
AM		 9416}
9417
99877b66
AM		 9418/* This function undoes the changes made by add_symbol_adjust. */
9419
9420static bfd_boolean
9421undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
9422{
9423 struct ppc_link_hash_entry *eh;
9424
9425 if (h->root.type == bfd_link_hash_indirect)
9426 return TRUE;
9427
9428 if (h->root.type == bfd_link_hash_warning)
9429 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9430
9431 eh = (struct ppc_link_hash_entry *) h;
9432 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
9433 return TRUE;
9434
9435 eh->elf.root.type = bfd_link_hash_undefined;
9436 return TRUE;
9437}
9438
9439void
9440ppc64_elf_restore_symbols (struct bfd_link_info *info)
9441{
9442 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9443 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
9444}
9445
5bd4f169
AM		 9446/* The RELOCATE_SECTION function is called by the ELF backend linker
9447 to handle the relocations for a section.
9448
9449 The relocs are always passed as Rela structures; if the section
9450 actually uses Rel structures, the r_addend field will always be
9451 zero.
9452
9453 This function is responsible for adjust the section contents as
9454 necessary, and (if using Rela relocs and generating a
1049f94e 9455 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 9456 necessary.
9457
9458 This function does not have to worry about setting the reloc
9459 address or the reloc symbol index.
9460
9461 LOCAL_SYMS is a pointer to the swapped in local symbols.
9462
9463 LOCAL_SECTIONS is an array giving the section in the input file
9464 corresponding to the st_shndx field of each local symbol.
9465
9466 The global hash table entry for the global symbols can be found
9467 via elf_sym_hashes (input_bfd).
9468
1049f94e 9469 When generating relocatable output, this function must handle
5bd4f169
AM		 9470 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
9471 going to be the section symbol corresponding to the output
9472 section, which means that the addend must be adjusted
9473 accordingly. */
9474
b34976b6 9475static bfd_boolean
4ce794b7
AM		 9476ppc64_elf_relocate_section (bfd *output_bfd,
9477 struct bfd_link_info *info,
9478 bfd *input_bfd,
9479 asection *input_section,
9480 bfd_byte *contents,
9481 Elf_Internal_Rela *relocs,
9482 Elf_Internal_Sym *local_syms,
9483 asection **local_sections)
5bd4f169 9484{
65f38f15 9485 struct ppc_link_hash_table *htab;
5bd4f169
AM		 9486 Elf_Internal_Shdr *symtab_hdr;
9487 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 9488 Elf_Internal_Rela *rel;
9489 Elf_Internal_Rela *relend;
411e1bfb
AM		 9490 Elf_Internal_Rela outrel;
9491 bfd_byte *loc;
411e1bfb 9492 struct got_entry **local_got_ents;
5bd4f169 9493 bfd_vma TOCstart;
b34976b6
AM		 9494 bfd_boolean ret = TRUE;
9495 bfd_boolean is_opd;
96e0dda4 9496 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 9497 bfd_boolean is_power4 = FALSE;
5bd4f169 9498
1049f94e 9499 if (info->relocatable)
b34976b6 9500 return TRUE;
b491616a 9501
65f38f15 9502 /* Initialize howto table if needed. */
5bd4f169 9503 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 9504 ppc_howto_init ();
9505
65f38f15 9506 htab = ppc_hash_table (info);
ee75fd95
AM		 9507
9508 /* Don't relocate stub sections. */
9509 if (input_section->owner == htab->stub_bfd)
9510 return TRUE;
9511
411e1bfb 9512 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 9513 TOCstart = elf_gp (output_bfd);
5bd4f169
AM		 9514 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
9515 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 9516 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 9517
5bd4f169
AM		 9518 rel = relocs;
9519 relend = relocs + input_section->reloc_count;
9520 for (; rel < relend; rel++)
9521 {
04c9666a 9522 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM		 9523 bfd_vma addend;
9524 bfd_reloc_status_type r;
9525 Elf_Internal_Sym *sym;
9526 asection *sec;
039b3fef
AM		 9527 struct elf_link_hash_entry *h_elf;
9528 struct ppc_link_hash_entry *h;
9529 struct ppc_link_hash_entry *fdh;
5bd4f169 9530 const char *sym_name;
0d4792f7 9531 unsigned long r_symndx, toc_symndx;
951fd09b 9532 char tls_mask, tls_gd, tls_type;
0d4792f7 9533 char sym_type;
5bd4f169 9534 bfd_vma relocation;
b34976b6
AM		 9535 bfd_boolean unresolved_reloc;
9536 bfd_boolean warned;
50bc7936 9537 unsigned long insn, mask;
721956f4
AM		 9538 struct ppc_stub_hash_entry *stub_entry;
9539 bfd_vma max_br_offset;
9540 bfd_vma from;
5bd4f169 9541
4ce794b7 9542 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 9543 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 9544
9545 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
9546 symbol of the previous ADDR64 reloc. The symbol gives us the
9547 proper TOC base to use. */
9548 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
9549 && rel != relocs
9550 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
9551 && is_opd)
9552 r_symndx = ELF64_R_SYM (rel[-1].r_info);
9553
4ce794b7
AM		 9554 sym = NULL;
9555 sec = NULL;
039b3fef 9556 h_elf = NULL;
4ce794b7 9557 sym_name = NULL;
b34976b6
AM		 9558 unresolved_reloc = FALSE;
9559 warned = FALSE;
65f38f15 9560
0b13192e 9561 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 9562 {
9563 /* It's a local symbol. */
4025353c
AM		 9564 long *opd_adjust;
9565
5bd4f169
AM		 9566 sym = local_syms + r_symndx;
9567 sec = local_sections[r_symndx];
26c61ae5 9568 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
0d4792f7 9569 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 9570 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
4025353c
AM		 9571 opd_adjust = get_opd_info (sec);
9572 if (opd_adjust != NULL)
1e2f5b6e 9573 {
3f764659 9574 long adjust = opd_adjust[(sym->st_value + rel->r_addend) / 8];
4025353c
AM		 9575 if (adjust == -1)
9576 relocation = 0;
9577 else
9578 relocation += adjust;
1e2f5b6e 9579 }
5bd4f169
AM		 9580 }
9581 else
9582 {
b2a8e766
AM		 9583 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
9584 r_symndx, symtab_hdr, sym_hashes,
039b3fef 9585 h_elf, sec, relocation,
b2a8e766 9586 unresolved_reloc, warned);
039b3fef
AM		 9587 sym_name = h_elf->root.root.string;
9588 sym_type = h_elf->type;
5bd4f169 9589 }
039b3fef 9590 h = (struct ppc_link_hash_entry *) h_elf;
5bd4f169 9591
951fd09b
AM		 9592 /* TLS optimizations. Replace instruction sequences and relocs
9593 based on information we collected in tls_optimize. We edit
9594 RELOCS so that --emit-relocs will output something sensible
9595 for the final instruction stream. */
9596 tls_mask = 0;
9597 tls_gd = 0;
0d4792f7 9598 toc_symndx = 0;
d881513a 9599 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 9600 {
9601 if (h != NULL)
039b3fef 9602 tls_mask = h->tls_mask;
411e1bfb
AM		 9603 else if (local_got_ents != NULL)
9604 {
e7b938ca
AM		 9605 char *lgot_masks;
9606 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
9607 tls_mask = lgot_masks[r_symndx];
411e1bfb 9608 }
0d4792f7
AM		 9609 if (tls_mask == 0 && r_type == R_PPC64_TLS)
9610 {
9611 /* Check for toc tls entries. */
9612 char *toc_tls;
9613
9614 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
9615 rel, input_bfd))
9616 return FALSE;
9617
9618 if (toc_tls)
9619 tls_mask = *toc_tls;
9620 }
9621 }
9622
9623 /* Check that tls relocs are used with tls syms, and non-tls
9624 relocs are used with non-tls syms. */
9625 if (r_symndx != 0
9626 && r_type != R_PPC64_NONE
9627 && (h == NULL
039b3fef
AM		 9628 || h->elf.root.type == bfd_link_hash_defined
9629 || h->elf.root.type == bfd_link_hash_defweak)
0d4792f7
AM		 9630 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
9631 {
9632 if (r_type == R_PPC64_TLS && tls_mask != 0)
9633 /* R_PPC64_TLS is OK against a symbol in the TOC. */
9634 ;
9635 else
9636 (*_bfd_error_handler)
9637 (sym_type == STT_TLS
d003868e
AM		 9638 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
9639 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
9640 input_bfd,
9641 input_section,
0d4792f7
AM		 9642 (long) rel->r_offset,
9643 ppc64_elf_howto_table[r_type]->name,
9644 sym_name);
411e1bfb
AM		 9645 }
9646
9647 /* Ensure reloc mapping code below stays sane. */
9648 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
9649 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
9650 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
9651 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
9652 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
9653 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
9654 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
9655 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
9656 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
9657 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
9658 abort ();
0d4792f7 9659
411e1bfb
AM		 9660 switch (r_type)
9661 {
9662 default:
411e1bfb
AM		 9663 break;
9664
9665 case R_PPC64_TOC16:
9666 case R_PPC64_TOC16_LO:
9667 case R_PPC64_TOC16_DS:
9668 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 9669 {
9670 /* Check for toc tls entries. */
9671 char *toc_tls;
951fd09b 9672 int retval;
411e1bfb 9673
0d4792f7
AM		 9674 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
9675 rel, input_bfd);
951fd09b 9676 if (retval == 0)
411e1bfb
AM		 9677 return FALSE;
9678
9679 if (toc_tls)
9680 {
951fd09b 9681 tls_mask = *toc_tls;
411e1bfb
AM		 9682 if (r_type == R_PPC64_TOC16_DS
9683 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 9684 {
9685 if (tls_mask != 0
9686 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
9687 goto toctprel;
9688 }
411e1bfb 9689 else
951fd09b
AM		 9690 {
9691 /* If we found a GD reloc pair, then we might be
9692 doing a GD->IE transition. */
9693 if (retval == 2)
9694 {
9695 tls_gd = TLS_TPRELGD;
9696 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9697 goto tls_get_addr_check;
9698 }
9699 else if (retval == 3)
9700 {
9701 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
9702 goto tls_get_addr_check;
9703 }
9704 }
411e1bfb
AM		 9705 }
9706 }
9707 break;
9708
9709 case R_PPC64_GOT_TPREL16_DS:
9710 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 9711 if (tls_mask != 0
9712 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 9713 {
81407a69 9714 toctprel:
411e1bfb
AM		 9715 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
9716 insn &= 31 << 21;
9717 insn |= 0x3c0d0000; /* addis 0,13,0 */
9718 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
9719 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 9720 if (toc_symndx != 0)
9721 {
9722 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
9723 /* We changed the symbol. Start over in order to
9724 get h, sym, sec etc. right. */
9725 rel--;
9726 continue;
9727 }
9728 else
9729 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9730 }
9731 break;
9732
9733 case R_PPC64_TLS:
951fd09b
AM		 9734 if (tls_mask != 0
9735 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 9736 {
50bc7936 9737 bfd_vma rtra;
411e1bfb 9738 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 9739 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 9740 == ((31 << 26) | (13 << 11)))
9741 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 9742 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 9743 == ((31 << 26) | (13 << 16)))
9744 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
9745 else
9746 abort ();
9747 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
9748 /* add -> addi. */
9749 insn = 14 << 26;
9750 else if ((insn & (31 << 1)) == 23 << 1
9751 && ((insn & (31 << 6)) < 14 << 6
9752 || ((insn & (31 << 6)) >= 16 << 6
9753 && (insn & (31 << 6)) < 24 << 6)))
9754 /* load and store indexed -> dform. */
9755 insn = (32 | ((insn >> 6) & 31)) << 26;
9756 else if ((insn & (31 << 1)) == 21 << 1
9757 && (insn & (0x1a << 6)) == 0)
9758 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
9759 insn = (((58 | ((insn >> 6) & 4)) << 26)
9760 | ((insn >> 6) & 1));
9761 else if ((insn & (31 << 1)) == 21 << 1
9762 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
9763 /* lwax -> lwa. */
9764 insn = (58 << 26) | 2;
9765 else
9766 abort ();
9767 insn |= rtra;
9768 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb
AM		 9769 /* Was PPC64_TLS which sits on insn boundary, now
9770 PPC64_TPREL16_LO which is at insn+2. */
9771 rel->r_offset += 2;
0d4792f7
AM		 9772 r_type = R_PPC64_TPREL16_LO;
9773 if (toc_symndx != 0)
9774 {
9775 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
9776 /* We changed the symbol. Start over in order to
9777 get h, sym, sec etc. right. */
9778 rel--;
9779 continue;
9780 }
9781 else
9782 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9783 }
9784 break;
9785
411e1bfb
AM		 9786 case R_PPC64_GOT_TLSGD16_HI:
9787 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 9788 tls_gd = TLS_TPRELGD;
9789 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9790 goto tls_gdld_hi;
9791 break;
9792
411e1bfb
AM		 9793 case R_PPC64_GOT_TLSLD16_HI:
9794 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 9795 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 9796 {
951fd09b
AM		 9797 tls_gdld_hi:
9798 if ((tls_mask & tls_gd) != 0)
9799 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
9800 + R_PPC64_GOT_TPREL16_DS);
9801 else
411e1bfb 9802 {
951fd09b
AM		 9803 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
9804 rel->r_offset -= 2;
9805 r_type = R_PPC64_NONE;
411e1bfb 9806 }
951fd09b 9807 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9808 }
9809 break;
9810
951fd09b
AM		 9811 case R_PPC64_GOT_TLSGD16:
9812 case R_PPC64_GOT_TLSGD16_LO:
9813 tls_gd = TLS_TPRELGD;
9814 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9815 goto tls_get_addr_check;
9816 break;
411e1bfb 9817
951fd09b
AM		 9818 case R_PPC64_GOT_TLSLD16:
9819 case R_PPC64_GOT_TLSLD16_LO:
9820 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
9821 {
9822 tls_get_addr_check:
9823 if (rel + 1 < relend)
411e1bfb 9824 {
951fd09b
AM		 9825 enum elf_ppc64_reloc_type r_type2;
9826 unsigned long r_symndx2;
9827 struct elf_link_hash_entry *h2;
9828 bfd_vma insn1, insn2, insn3;
9829 bfd_vma offset;
9830
9831 /* The next instruction should be a call to
9832 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 9833 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM		 9834 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
9835 if (r_symndx2 < symtab_hdr->sh_info
9836 || (r_type2 != R_PPC64_REL14
9837 && r_type2 != R_PPC64_REL14_BRTAKEN
9838 && r_type2 != R_PPC64_REL14_BRNTAKEN
9839 && r_type2 != R_PPC64_REL24))
9840 break;
9841
9842 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
9843 while (h2->root.type == bfd_link_hash_indirect
9844 || h2->root.type == bfd_link_hash_warning)
9845 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
8387904d
AM		 9846 if (h2 == NULL || (h2 != &htab->tls_get_addr->elf
9847 && h2 != &htab->tls_get_addr_fd->elf))
951fd09b
AM		 9848 break;
9849
9850 /* OK, it checks out. Replace the call. */
9851 offset = rel[1].r_offset;
9852 insn1 = bfd_get_32 (output_bfd,
9853 contents + rel->r_offset - 2);
9854 insn3 = bfd_get_32 (output_bfd,
9855 contents + offset + 4);
9856 if ((tls_mask & tls_gd) != 0)
411e1bfb 9857 {
951fd09b
AM		 9858 /* IE */
9859 insn1 &= (1 << 26) - (1 << 2);
9860 insn1 |= 58 << 26; /* ld */
9861 insn2 = 0x7c636a14; /* add 3,3,13 */
9862 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
9863 if ((tls_mask & TLS_EXPLICIT) == 0)
9864 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
9865 + R_PPC64_GOT_TPREL16_DS);
9866 else
9867 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
9868 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9869 }
9870 else
951fd09b
AM		 9871 {
9872 /* LE */
9873 insn1 = 0x3c6d0000; /* addis 3,13,0 */
9874 insn2 = 0x38630000; /* addi 3,3,0 */
9875 if (tls_gd == 0)
9876 {
9877 /* Was an LD reloc. */
9878 r_symndx = 0;
e1918d23
AM		 9879 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
9880 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
951fd09b 9881 }
0d4792f7
AM		 9882 else if (toc_symndx != 0)
9883 r_symndx = toc_symndx;
951fd09b
AM		 9884 r_type = R_PPC64_TPREL16_HA;
9885 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9886 rel[1].r_info = ELF64_R_INFO (r_symndx,
9887 R_PPC64_TPREL16_LO);
9888 rel[1].r_offset += 2;
9889 }
9890 if (insn3 == NOP
9891 || insn3 == CROR_151515 || insn3 == CROR_313131)
9892 {
9893 insn3 = insn2;
9894 insn2 = NOP;
9895 rel[1].r_offset += 4;
9896 }
9897 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
9898 bfd_put_32 (output_bfd, insn2, contents + offset);
9899 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
0d4792f7 9900 if (tls_gd == 0 || toc_symndx != 0)
951fd09b 9901 {
0d4792f7
AM		 9902 /* We changed the symbol. Start over in order
9903 to get h, sym, sec etc. right. */
951fd09b
AM		 9904 rel--;
9905 continue;
9906 }
411e1bfb 9907 }
411e1bfb 9908 }
411e1bfb
AM		 9909 break;
9910
9911 case R_PPC64_DTPMOD64:
951fd09b
AM		 9912 if (rel + 1 < relend
9913 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
9914 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 9915 {
951fd09b
AM		 9916 if ((tls_mask & TLS_GD) == 0)
9917 {
9918 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
9919 if ((tls_mask & TLS_TPRELGD) != 0)
9920 r_type = R_PPC64_TPREL64;
9921 else
9922 {
4ce794b7 9923 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 9924 r_type = R_PPC64_NONE;
9925 }
9926 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9927 }
9928 }
9929 else
9930 {
9931 if ((tls_mask & TLS_LD) == 0)
411e1bfb 9932 {
4ce794b7 9933 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 9934 r_type = R_PPC64_NONE;
951fd09b 9935 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 9936 }
411e1bfb
AM		 9937 }
9938 break;
9939
9940 case R_PPC64_TPREL64:
951fd09b 9941 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 9942 {
9943 r_type = R_PPC64_NONE;
9944 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9945 }
9946 break;
9947 }
9948
9949 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 9950 insn = 0;
b25116a9
AM		 9951 max_br_offset = 1 << 25;
9952 addend = rel->r_addend;
65f38f15 9953 switch (r_type)
5bd4f169
AM		 9954 {
9955 default:
65f38f15 9956 break;
5bd4f169 9957
65f38f15
AM		 9958 /* Branch taken prediction relocations. */
9959 case R_PPC64_ADDR14_BRTAKEN:
9960 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 9961 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
9962 /* Fall thru. */
65f38f15 9963
86c76c7b 9964 /* Branch not taken prediction relocations. */
65f38f15
AM		 9965 case R_PPC64_ADDR14_BRNTAKEN:
9966 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 9967 insn |= bfd_get_32 (output_bfd,
9968 contents + rel->r_offset) & ~(0x01 << 21);
b25116a9 9969 /* Fall thru. */
86c76c7b 9970
b25116a9
AM		 9971 case R_PPC64_REL14:
9972 max_br_offset = 1 << 15;
9973 /* Fall thru. */
5bd4f169 9974
65f38f15 9975 case R_PPC64_REL24:
ad8e1ba5
AM		 9976 /* Calls to functions with a different TOC, such as calls to
9977 shared objects, need to alter the TOC pointer. This is
9978 done using a linkage stub. A REL24 branching to these
9979 linkage stubs needs to be followed by a nop, as the nop
9980 will be replaced with an instruction to restore the TOC
9981 base pointer. */
b25116a9 9982 stub_entry = NULL;
8387904d 9983 fdh = h;
ad8e1ba5 9984 if (((h != NULL
039b3fef
AM		 9985 && (((fdh = h->oh) != NULL
9986 && fdh->elf.plt.plist != NULL)
9987 || (fdh = h)->elf.plt.plist != NULL))
8387904d 9988 || (sec != NULL
ad8e1ba5 9989 && sec->output_section != NULL
b25116a9 9990 && sec->id <= htab->top_id
ad8e1ba5
AM		 9991 && (htab->stub_group[sec->id].toc_off
9992 != htab->stub_group[input_section->id].toc_off)))
721956f4 9993 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 9994 rel, htab)) != NULL
9995 && (stub_entry->stub_type == ppc_stub_plt_call
9996 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
9997 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 9998 {
b25116a9 9999 bfd_boolean can_plt_call = FALSE;
721956f4 10000
eea6121a 10001 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 10002 {
b25116a9
AM		 10003 unsigned long nop;
10004 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
10005 if (nop == NOP
10006 || nop == CROR_151515 || nop == CROR_313131)
41bd81ab 10007 {
4ce794b7 10008 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 10009 contents + rel->r_offset + 4);
b25116a9 10010 can_plt_call = TRUE;
41bd81ab 10011 }
5bd4f169 10012 }
721956f4
AM		 10013
10014 if (!can_plt_call)
10015 {
ad8e1ba5
AM		 10016 if (stub_entry->stub_type == ppc_stub_plt_call)
10017 {
10018 /* If this is a plain branch rather than a branch
10019 and link, don't require a nop. */
b25116a9
AM		 10020 unsigned long br;
10021 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
10022 if ((br & 1) == 0)
10023 can_plt_call = TRUE;
15b552e9
AM		 10024 else
10025 stub_entry = NULL;
ad8e1ba5 10026 }
6ab189d5 10027 else if (h != NULL
039b3fef 10028 && strcmp (h->elf.root.root.string,
6ab189d5
AM		 10029 ".__libc_start_main") == 0)
10030 {
10031 /* Allow crt1 branch to go via a toc adjusting stub. */
b25116a9 10032 can_plt_call = TRUE;
6ab189d5 10033 }
ad8e1ba5
AM		 10034 else
10035 {
10036 if (strcmp (input_section->output_section->name,
10037 ".init") == 0
10038 || strcmp (input_section->output_section->name,
10039 ".fini") == 0)
10040 (*_bfd_error_handler)
d003868e 10041 (_("%B(%A+0x%lx): automatic multiple TOCs "
ad8e1ba5
AM		 10042 "not supported using your crt files; "
10043 "recompile with -mminimal-toc or upgrade gcc"),
d003868e
AM		 10044 input_bfd,
10045 input_section,
ad8e1ba5
AM		 10046 (long) rel->r_offset);
10047 else
10048 (*_bfd_error_handler)
d003868e 10049 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
ad8e1ba5
AM		 10050 "does not allow automatic multiple TOCs; "
10051 "recompile with -mminimal-toc or "
10052 "-fno-optimize-sibling-calls, "
10053 "or make `%s' extern"),
d003868e
AM		 10054 input_bfd,
10055 input_section,
ad8e1ba5
AM		 10056 (long) rel->r_offset,
10057 sym_name,
10058 sym_name);
10059 bfd_set_error (bfd_error_bad_value);
10060 ret = FALSE;
10061 }
721956f4
AM		 10062 }
10063
b25116a9
AM		 10064 if (can_plt_call
10065 && stub_entry->stub_type == ppc_stub_plt_call)
10066 unresolved_reloc = FALSE;
10067 }
10068
8387904d
AM		 10069 if (stub_entry == NULL
10070 && get_opd_info (sec) != NULL)
10071 {
10072 /* The branch destination is the value of the opd entry. */
10073 bfd_vma off = (relocation - sec->output_section->vma
10074 - sec->output_offset + rel->r_addend);
10075 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
10076 if (dest != (bfd_vma) -1)
10077 {
10078 relocation = dest;
10079 addend = 0;
10080 }
10081 }
10082
b25116a9
AM		 10083 /* If the branch is out of reach we ought to have a long
10084 branch stub. */
10085 from = (rel->r_offset
10086 + input_section->output_offset
10087 + input_section->output_section->vma);
10088
10089 if (stub_entry == NULL
10090 && (relocation + rel->r_addend - from + max_br_offset
10091 >= 2 * max_br_offset)
10092 && r_type != R_PPC64_ADDR14_BRTAKEN
10093 && r_type != R_PPC64_ADDR14_BRNTAKEN)
039b3fef
AM		 10094 stub_entry = ppc_get_stub_entry (input_section, sec, h, rel,
10095 htab);
b25116a9
AM		 10096
10097 if (stub_entry != NULL)
10098 {
10099 /* Munge up the value and addend so that we call the stub
10100 rather than the procedure directly. */
10101 relocation = (stub_entry->stub_offset
10102 + stub_entry->stub_sec->output_offset
10103 + stub_entry->stub_sec->output_section->vma);
10104 addend = 0;
10105 }
10106
10107 if (insn != 0)
10108 {
10109 if (is_power4)
721956f4 10110 {
b25116a9
AM		 10111 /* Set 'a' bit. This is 0b00010 in BO field for branch
10112 on CR(BI) insns (BO == 001at or 011at), and 0b01000
10113 for branch on CTR insns (BO == 1a00t or 1a01t). */
10114 if ((insn & (0x14 << 21)) == (0x04 << 21))
10115 insn |= 0x02 << 21;
10116 else if ((insn & (0x14 << 21)) == (0x10 << 21))
10117 insn |= 0x08 << 21;
10118 else
10119 break;
10120 }
10121 else
10122 {
10123 /* Invert 'y' bit if not the default. */
10124 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
10125 insn ^= 0x01 << 21;
721956f4 10126 }
b25116a9
AM		 10127
10128 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5bd4f169 10129 }
e86ce104 10130
06da1e8e
AM		 10131 /* NOP out calls to undefined weak functions.
10132 We can thus call a weak function without first
10133 checking whether the function is defined. */
b25116a9 10134 else if (h != NULL
039b3fef 10135 && h->elf.root.type == bfd_link_hash_undefweak
b25116a9
AM		 10136 && r_type == R_PPC64_REL24
10137 && relocation == 0
10138 && rel->r_addend == 0)
e86ce104 10139 {
06da1e8e
AM		 10140 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
10141 continue;
e86ce104 10142 }
65f38f15
AM		 10143 break;
10144 }
5bd4f169 10145
65f38f15 10146 /* Set `addend'. */
411e1bfb 10147 tls_type = 0;
65f38f15
AM		 10148 switch (r_type)
10149 {
10150 default:
10151 (*_bfd_error_handler)
d003868e
AM		 10152 (_("%B: unknown relocation type %d for symbol %s"),
10153 input_bfd, (int) r_type, sym_name);
5bd4f169 10154
65f38f15 10155 bfd_set_error (bfd_error_bad_value);
b34976b6 10156 ret = FALSE;
65f38f15 10157 continue;
5bd4f169 10158
65f38f15 10159 case R_PPC64_NONE:
411e1bfb 10160 case R_PPC64_TLS:
04c9666a
AM		 10161 case R_PPC64_GNU_VTINHERIT:
10162 case R_PPC64_GNU_VTENTRY:
65f38f15 10163 continue;
5bd4f169
AM		 10164
10165 /* GOT16 relocations. Like an ADDR16 using the symbol's
10166 address in the GOT as relocation value instead of the
411e1bfb 10167 symbol's value itself. Also, create a GOT entry for the
5bd4f169 10168 symbol and put the symbol value there. */
411e1bfb
AM		 10169 case R_PPC64_GOT_TLSGD16:
10170 case R_PPC64_GOT_TLSGD16_LO:
10171 case R_PPC64_GOT_TLSGD16_HI:
10172 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 10173 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 10174 goto dogot;
10175
10176 case R_PPC64_GOT_TLSLD16:
10177 case R_PPC64_GOT_TLSLD16_LO:
10178 case R_PPC64_GOT_TLSLD16_HI:
10179 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 10180 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 10181 goto dogot;
10182
10183 case R_PPC64_GOT_TPREL16_DS:
10184 case R_PPC64_GOT_TPREL16_LO_DS:
10185 case R_PPC64_GOT_TPREL16_HI:
10186 case R_PPC64_GOT_TPREL16_HA:
10187 tls_type = TLS_TLS | TLS_TPREL;
10188 goto dogot;
10189
10190 case R_PPC64_GOT_DTPREL16_DS:
10191 case R_PPC64_GOT_DTPREL16_LO_DS:
10192 case R_PPC64_GOT_DTPREL16_HI:
10193 case R_PPC64_GOT_DTPREL16_HA:
10194 tls_type = TLS_TLS | TLS_DTPREL;
10195 goto dogot;
10196
65f38f15
AM		 10197 case R_PPC64_GOT16:
10198 case R_PPC64_GOT16_LO:
10199 case R_PPC64_GOT16_HI:
10200 case R_PPC64_GOT16_HA:
10201 case R_PPC64_GOT16_DS:
10202 case R_PPC64_GOT16_LO_DS:
411e1bfb 10203 dogot:
5bd4f169
AM		 10204 {
10205 /* Relocation is to the entry for this symbol in the global
10206 offset table. */
e717da7e 10207 asection *got;
d881513a 10208 bfd_vma *offp;
5bd4f169 10209 bfd_vma off;
d881513a 10210 unsigned long indx = 0;
65f38f15 10211
d881513a
AM		 10212 if (tls_type == (TLS_TLS | TLS_LD)
10213 && (h == NULL
f5385ebf 10214 || !h->elf.def_dynamic))
e717da7e 10215 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 10216 else
5bd4f169 10217 {
d881513a 10218 struct got_entry *ent;
5bd4f169 10219
d881513a
AM		 10220 if (h != NULL)
10221 {
10222 bfd_boolean dyn = htab->elf.dynamic_sections_created;
039b3fef
AM		 10223 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
10224 &h->elf)
d881513a 10225 || (info->shared
039b3fef 10226 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
d881513a
AM		 10227 /* This is actually a static link, or it is a
10228 -Bsymbolic link and the symbol is defined
10229 locally, or the symbol was forced to be local
10230 because of a version file. */
10231 ;
10232 else
10233 {
039b3fef 10234 indx = h->elf.dynindx;
d881513a
AM		 10235 unresolved_reloc = FALSE;
10236 }
039b3fef 10237 ent = h->elf.got.glist;
d881513a 10238 }
411e1bfb 10239 else
5bd4f169 10240 {
d881513a
AM		 10241 if (local_got_ents == NULL)
10242 abort ();
10243 ent = local_got_ents[r_symndx];
5bd4f169 10244 }
d881513a
AM		 10245
10246 for (; ent != NULL; ent = ent->next)
10247 if (ent->addend == rel->r_addend
e717da7e 10248 && ent->owner == input_bfd
d881513a
AM		 10249 && ent->tls_type == tls_type)
10250 break;
10251 if (ent == NULL)
10252 abort ();
10253 offp = &ent->got.offset;
5bd4f169 10254 }
411e1bfb 10255
e717da7e
AM		 10256 got = ppc64_elf_tdata (input_bfd)->got;
10257 if (got == NULL)
10258 abort ();
10259
411e1bfb
AM		 10260 /* The offset must always be a multiple of 8. We use the
10261 least significant bit to record whether we have already
10262 processed this entry. */
d881513a 10263 off = *offp;
411e1bfb
AM		 10264 if ((off & 1) != 0)
10265 off &= ~1;
5bd4f169
AM		 10266 else
10267 {
411e1bfb
AM		 10268 /* Generate relocs for the dynamic linker, except in
10269 the case of TLSLD where we'll use one entry per
10270 module. */
e717da7e
AM		 10271 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
10272
d881513a 10273 *offp = off | 1;
4e795f50
AM		 10274 if ((info->shared || indx != 0)
10275 && (h == NULL
039b3fef
AM		 10276 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10277 || h->elf.root.type != bfd_link_hash_undefweak))
5bd4f169 10278 {
e717da7e
AM		 10279 outrel.r_offset = (got->output_section->vma
10280 + got->output_offset
411e1bfb 10281 + off);
81407a69 10282 outrel.r_addend = rel->r_addend;
d881513a 10283 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 10284 {
411e1bfb 10285 outrel.r_addend = 0;
e515b051 10286 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 10287 if (tls_type == (TLS_TLS | TLS_GD))
10288 {
e717da7e
AM		 10289 loc = relgot->contents;
10290 loc += (relgot->reloc_count++
d881513a
AM		 10291 * sizeof (Elf64_External_Rela));
10292 bfd_elf64_swap_reloca_out (output_bfd,
10293 &outrel, loc);
e515b051 10294 outrel.r_offset += 8;
81407a69 10295 outrel.r_addend = rel->r_addend;
d881513a
AM		 10296 outrel.r_info
10297 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 10298 }
411e1bfb 10299 }
951fd09b 10300 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 10301 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 10302 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 10303 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
10304 else if (indx == 0)
81407a69
AM		 10305 {
10306 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
10307
10308 /* Write the .got section contents for the sake
10309 of prelink. */
e717da7e 10310 loc = got->contents + off;
23fbd6fa
JJ		 10311 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
10312 loc);
81407a69 10313 }
411e1bfb
AM		 10314 else
10315 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 10316
10317 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 10318 {
10319 outrel.r_addend += relocation;
10320 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 10321 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 10322 }
e717da7e
AM		 10323 loc = relgot->contents;
10324 loc += (relgot->reloc_count++
411e1bfb
AM		 10325 * sizeof (Elf64_External_Rela));
10326 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10327 }
10328
ad8e1ba5 10329 /* Init the .got section contents here if we're not
81407a69 10330 emitting a reloc. */
d881513a 10331 else
411e1bfb 10332 {
d881513a 10333 relocation += rel->r_addend;
7b609f53
AM		 10334 if (tls_type == (TLS_TLS | TLS_LD))
10335 relocation = 1;
10336 else if (tls_type != 0)
411e1bfb 10337 {
e1918d23 10338 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 10339 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 10340 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 10341
7b609f53
AM		 10342 if (tls_type == (TLS_TLS | TLS_GD))
10343 {
10344 bfd_put_64 (output_bfd, relocation,
e717da7e 10345 got->contents + off + 8);
7b609f53
AM		 10346 relocation = 1;
10347 }
411e1bfb 10348 }
7b609f53 10349
411e1bfb 10350 bfd_put_64 (output_bfd, relocation,
e717da7e 10351 got->contents + off);
5bd4f169
AM		 10352 }
10353 }
10354
65f38f15
AM		 10355 if (off >= (bfd_vma) -2)
10356 abort ();
10357
e717da7e 10358 relocation = got->output_offset + off;
65f38f15 10359
5bd4f169 10360 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 10361 addend = -TOC_BASE_OFF;
5bd4f169 10362 }
65f38f15
AM		 10363 break;
10364
10365 case R_PPC64_PLT16_HA:
10366 case R_PPC64_PLT16_HI:
10367 case R_PPC64_PLT16_LO:
10368 case R_PPC64_PLT32:
10369 case R_PPC64_PLT64:
10370 /* Relocation is to the entry for this symbol in the
10371 procedure linkage table. */
10372
10373 /* Resolve a PLT reloc against a local symbol directly,
10374 without using the procedure linkage table. */
10375 if (h == NULL)
10376 break;
10377
411e1bfb
AM		 10378 /* It's possible that we didn't make a PLT entry for this
10379 symbol. This happens when statically linking PIC code,
10380 or when using -Bsymbolic. Go find a match if there is a
10381 PLT entry. */
4ce794b7 10382 if (htab->plt != NULL)
65f38f15 10383 {
411e1bfb 10384 struct plt_entry *ent;
039b3fef 10385 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 10386 if (ent->addend == rel->r_addend
10387 && ent->plt.offset != (bfd_vma) -1)
10388 {
4ce794b7
AM		 10389 relocation = (htab->plt->output_section->vma
10390 + htab->plt->output_offset
411e1bfb
AM		 10391 + ent->plt.offset);
10392 unresolved_reloc = FALSE;
10393 }
65f38f15 10394 }
65f38f15 10395 break;
5bd4f169 10396
0b13192e
AM		 10397 case R_PPC64_TOC:
10398 /* Relocation value is TOC base. */
10399 relocation = TOCstart;
10400 if (r_symndx == 0)
10401 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM		 10402 else if (unresolved_reloc)
10403 ;
10404 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM		 10405 relocation += htab->stub_group[sec->id].toc_off;
10406 else
10407 unresolved_reloc = TRUE;
10408 goto dodyn2;
10409
5bd4f169
AM		 10410 /* TOC16 relocs. We want the offset relative to the TOC base,
10411 which is the address of the start of the TOC plus 0x8000.
10412 The TOC consists of sections .got, .toc, .tocbss, and .plt,
10413 in this order. */
65f38f15
AM		 10414 case R_PPC64_TOC16:
10415 case R_PPC64_TOC16_LO:
10416 case R_PPC64_TOC16_HI:
10417 case R_PPC64_TOC16_DS:
10418 case R_PPC64_TOC16_LO_DS:
10419 case R_PPC64_TOC16_HA:
ad8e1ba5 10420 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 10421 break;
10422
10423 /* Relocate against the beginning of the section. */
65f38f15
AM		 10424 case R_PPC64_SECTOFF:
10425 case R_PPC64_SECTOFF_LO:
10426 case R_PPC64_SECTOFF_HI:
10427 case R_PPC64_SECTOFF_DS:
10428 case R_PPC64_SECTOFF_LO_DS:
10429 case R_PPC64_SECTOFF_HA:
4ce794b7 10430 if (sec != NULL)
65f38f15 10431 addend -= sec->output_section->vma;
5bd4f169
AM		 10432 break;
10433
721956f4
AM		 10434 case R_PPC64_REL14:
10435 case R_PPC64_REL14_BRNTAKEN:
10436 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 10437 case R_PPC64_REL24:
10438 break;
10439
411e1bfb
AM		 10440 case R_PPC64_TPREL16:
10441 case R_PPC64_TPREL16_LO:
10442 case R_PPC64_TPREL16_HI:
10443 case R_PPC64_TPREL16_HA:
10444 case R_PPC64_TPREL16_DS:
10445 case R_PPC64_TPREL16_LO_DS:
10446 case R_PPC64_TPREL16_HIGHER:
10447 case R_PPC64_TPREL16_HIGHERA:
10448 case R_PPC64_TPREL16_HIGHEST:
10449 case R_PPC64_TPREL16_HIGHESTA:
e1918d23 10450 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 10451 if (info->shared)
10452 /* The TPREL16 relocs shouldn't really be used in shared
10453 libs as they will result in DT_TEXTREL being set, but
10454 support them anyway. */
10455 goto dodyn;
10456 break;
10457
10458 case R_PPC64_DTPREL16:
10459 case R_PPC64_DTPREL16_LO:
10460 case R_PPC64_DTPREL16_HI:
10461 case R_PPC64_DTPREL16_HA:
10462 case R_PPC64_DTPREL16_DS:
10463 case R_PPC64_DTPREL16_LO_DS:
10464 case R_PPC64_DTPREL16_HIGHER:
10465 case R_PPC64_DTPREL16_HIGHERA:
10466 case R_PPC64_DTPREL16_HIGHEST:
10467 case R_PPC64_DTPREL16_HIGHESTA:
e1918d23 10468 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 10469 break;
10470
e515b051
AM		 10471 case R_PPC64_DTPMOD64:
10472 relocation = 1;
10473 addend = 0;
10474 goto dodyn;
10475
411e1bfb 10476 case R_PPC64_TPREL64:
e1918d23 10477 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 10478 goto dodyn;
10479
10480 case R_PPC64_DTPREL64:
e1918d23 10481 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 10482 /* Fall thru */
10483
65f38f15
AM		 10484 /* Relocations that may need to be propagated if this is a
10485 dynamic object. */
04c9666a 10486 case R_PPC64_REL30:
65f38f15
AM		 10487 case R_PPC64_REL32:
10488 case R_PPC64_REL64:
10489 case R_PPC64_ADDR14:
10490 case R_PPC64_ADDR14_BRNTAKEN:
10491 case R_PPC64_ADDR14_BRTAKEN:
10492 case R_PPC64_ADDR16:
10493 case R_PPC64_ADDR16_DS:
10494 case R_PPC64_ADDR16_HA:
10495 case R_PPC64_ADDR16_HI:
10496 case R_PPC64_ADDR16_HIGHER:
10497 case R_PPC64_ADDR16_HIGHERA:
10498 case R_PPC64_ADDR16_HIGHEST:
10499 case R_PPC64_ADDR16_HIGHESTA:
10500 case R_PPC64_ADDR16_LO:
10501 case R_PPC64_ADDR16_LO_DS:
10502 case R_PPC64_ADDR24:
65f38f15
AM		 10503 case R_PPC64_ADDR32:
10504 case R_PPC64_ADDR64:
10505 case R_PPC64_UADDR16:
10506 case R_PPC64_UADDR32:
10507 case R_PPC64_UADDR64:
ec338859
AM		 10508 /* r_symndx will be zero only for relocs against symbols
10509 from removed linkonce sections, or sections discarded by
10510 a linker script. */
411e1bfb 10511 dodyn:
5d1634d7
AM		 10512 if (r_symndx == 0)
10513 break;
10514 /* Fall thru. */
10515
0b13192e 10516 dodyn2:
5d1634d7 10517 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 10518 break;
10519
41bd81ab
AM		 10520 if (NO_OPD_RELOCS && is_opd)
10521 break;
10522
65f38f15 10523 if ((info->shared
4e795f50 10524 && (h == NULL
039b3fef
AM		 10525 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10526 || h->elf.root.type != bfd_link_hash_undefweak)
411e1bfb 10527 && (MUST_BE_DYN_RELOC (r_type)
039b3fef 10528 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
f4656909
AM		 10529 || (ELIMINATE_COPY_RELOCS
10530 && !info->shared
65f38f15 10531 && h != NULL
039b3fef 10532 && h->elf.dynindx != -1
f5385ebf
AM		 10533 && !h->elf.non_got_ref
10534 && h->elf.def_dynamic
10535 && !h->elf.def_regular))
65f38f15
AM		 10536 {
10537 Elf_Internal_Rela outrel;
b34976b6 10538 bfd_boolean skip, relocate;
65f38f15 10539 asection *sreloc;
947216bf 10540 bfd_byte *loc;
1cf1f670 10541 bfd_vma out_off;
65f38f15
AM		 10542
10543 /* When generating a dynamic object, these relocations
10544 are copied into the output file to be resolved at run
10545 time. */
10546
b34976b6
AM		 10547 skip = FALSE;
10548 relocate = FALSE;
65f38f15 10549
1cf1f670
AM		 10550 out_off = _bfd_elf_section_offset (output_bfd, info,
10551 input_section, rel->r_offset);
10552 if (out_off == (bfd_vma) -1)
b34976b6 10553 skip = TRUE;
1cf1f670 10554 else if (out_off == (bfd_vma) -2)
b34976b6 10555 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 10556 out_off += (input_section->output_section->vma
10557 + input_section->output_offset);
10558 outrel.r_offset = out_off;
411e1bfb 10559 outrel.r_addend = rel->r_addend;
65f38f15 10560
1cf1f670
AM		 10561 /* Optimize unaligned reloc use. */
10562 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
10563 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
10564 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
10565 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
10566 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
10567 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
10568 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
10569 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
10570 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
10571
65f38f15 10572 if (skip)
0bb2d96a 10573 memset (&outrel, 0, sizeof outrel);
039b3fef 10574 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
0b13192e
AM		 10575 && !is_opd
10576 && r_type != R_PPC64_TOC)
039b3fef 10577 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
65f38f15
AM		 10578 else
10579 {
41bd81ab
AM		 10580 /* This symbol is local, or marked to become local,
10581 or this is an opd section reloc which must point
10582 at a local function. */
65f38f15 10583 outrel.r_addend += relocation;
e86ce104 10584 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 10585 {
3fad3c7c 10586 if (is_opd && h != NULL)
afbe61cf
AM		 10587 {
10588 /* Lie about opd entries. This case occurs
10589 when building shared libraries and we
10590 reference a function in another shared
3fad3c7c
AM		 10591 lib. The same thing happens for a weak
10592 definition in an application that's
10593 overridden by a strong definition in a
10594 shared lib. (I believe this is a generic
10595 bug in binutils handling of weak syms.)
10596 In these cases we won't use the opd
1e2f5b6e 10597 entry in this lib. */
b34976b6 10598 unresolved_reloc = FALSE;
afbe61cf 10599 }
65f38f15 10600 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 10601
10602 /* We need to relocate .opd contents for ld.so.
10603 Prelink also wants simple and consistent rules
10604 for relocs. This make all RELATIVE relocs have
10605 *r_offset equal to r_addend. */
10606 relocate = TRUE;
65f38f15
AM		 10607 }
10608 else
10609 {
10610 long indx = 0;
10611
41bd81ab 10612 if (bfd_is_abs_section (sec))
65f38f15
AM		 10613 ;
10614 else if (sec == NULL || sec->owner == NULL)
10615 {
10616 bfd_set_error (bfd_error_bad_value);
b34976b6 10617 return FALSE;
65f38f15
AM		 10618 }
10619 else
10620 {
10621 asection *osec;
10622
10623 osec = sec->output_section;
10624 indx = elf_section_data (osec)->dynindx;
10625
10626 /* We are turning this relocation into one
10627 against a section symbol, so subtract out
10628 the output section's address but not the
10629 offset of the input section in the output
10630 section. */
10631 outrel.r_addend -= osec->vma;
10632 }
10633
10634 outrel.r_info = ELF64_R_INFO (indx, r_type);
10635 }
10636 }
10637
10638 sreloc = elf_section_data (input_section)->sreloc;
10639 if (sreloc == NULL)
10640 abort ();
10641
947216bf
AM		 10642 loc = sreloc->contents;
10643 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 10644 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10645
10646 /* If this reloc is against an external symbol, it will
10647 be computed at runtime, so there's no need to do
81407a69
AM		 10648 anything now. However, for the sake of prelink ensure
10649 that the section contents are a known value. */
65f38f15 10650 if (! relocate)
81407a69
AM		 10651 {
10652 unresolved_reloc = FALSE;
10653 /* The value chosen here is quite arbitrary as ld.so
10654 ignores section contents except for the special
10655 case of .opd where the contents might be accessed
10656 before relocation. Choose zero, as that won't
10657 cause reloc overflow. */
10658 relocation = 0;
10659 addend = 0;
10660 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
10661 to improve backward compatibility with older
10662 versions of ld. */
10663 if (r_type == R_PPC64_ADDR64)
10664 addend = outrel.r_addend;
10665 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 10666 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 10667 addend = (input_section->output_section->vma
10668 + input_section->output_offset
10669 + rel->r_offset);
81407a69 10670 }
65f38f15 10671 }
5bd4f169
AM		 10672 break;
10673
65f38f15
AM		 10674 case R_PPC64_COPY:
10675 case R_PPC64_GLOB_DAT:
10676 case R_PPC64_JMP_SLOT:
10677 case R_PPC64_RELATIVE:
10678 /* We shouldn't ever see these dynamic relocs in relocatable
10679 files. */
ae9a127f 10680 /* Fall through. */
65f38f15
AM		 10681
10682 case R_PPC64_PLTGOT16:
10683 case R_PPC64_PLTGOT16_DS:
10684 case R_PPC64_PLTGOT16_HA:
10685 case R_PPC64_PLTGOT16_HI:
10686 case R_PPC64_PLTGOT16_LO:
10687 case R_PPC64_PLTGOT16_LO_DS:
10688 case R_PPC64_PLTREL32:
10689 case R_PPC64_PLTREL64:
10690 /* These ones haven't been implemented yet. */
10691
10692 (*_bfd_error_handler)
d003868e
AM		 10693 (_("%B: relocation %s is not supported for symbol %s."),
10694 input_bfd,
4ce794b7 10695 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 10696
10697 bfd_set_error (bfd_error_invalid_operation);
b34976b6 10698 ret = FALSE;
5bd4f169 10699 continue;
65f38f15 10700 }
5bd4f169 10701
65f38f15
AM		 10702 /* Do any further special processing. */
10703 switch (r_type)
10704 {
10705 default:
10706 break;
10707
10708 case R_PPC64_ADDR16_HA:
10709 case R_PPC64_ADDR16_HIGHERA:
10710 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM		 10711 case R_PPC64_GOT16_HA:
10712 case R_PPC64_PLTGOT16_HA:
65f38f15
AM		 10713 case R_PPC64_PLT16_HA:
10714 case R_PPC64_TOC16_HA:
10715 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 10716 case R_PPC64_TPREL16_HA:
10717 case R_PPC64_DTPREL16_HA:
10718 case R_PPC64_GOT_TLSGD16_HA:
10719 case R_PPC64_GOT_TLSLD16_HA:
10720 case R_PPC64_GOT_TPREL16_HA:
10721 case R_PPC64_GOT_DTPREL16_HA:
10722 case R_PPC64_TPREL16_HIGHER:
10723 case R_PPC64_TPREL16_HIGHERA:
10724 case R_PPC64_TPREL16_HIGHEST:
10725 case R_PPC64_TPREL16_HIGHESTA:
10726 case R_PPC64_DTPREL16_HIGHER:
10727 case R_PPC64_DTPREL16_HIGHERA:
10728 case R_PPC64_DTPREL16_HIGHEST:
10729 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 10730 /* It's just possible that this symbol is a weak symbol
10731 that's not actually defined anywhere. In that case,
10732 'sec' would be NULL, and we should leave the symbol
10733 alone (it will be set to zero elsewhere in the link). */
10734 if (sec != NULL)
e515b051
AM		 10735 /* Add 0x10000 if sign bit in 0:15 is set.
10736 Bits 0:15 are not used. */
10737 addend += 0x8000;
65f38f15
AM		 10738 break;
10739
10740 case R_PPC64_ADDR16_DS:
10741 case R_PPC64_ADDR16_LO_DS:
10742 case R_PPC64_GOT16_DS:
10743 case R_PPC64_GOT16_LO_DS:
10744 case R_PPC64_PLT16_LO_DS:
10745 case R_PPC64_SECTOFF_DS:
10746 case R_PPC64_SECTOFF_LO_DS:
10747 case R_PPC64_TOC16_DS:
10748 case R_PPC64_TOC16_LO_DS:
10749 case R_PPC64_PLTGOT16_DS:
10750 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 10751 case R_PPC64_GOT_TPREL16_DS:
10752 case R_PPC64_GOT_TPREL16_LO_DS:
10753 case R_PPC64_GOT_DTPREL16_DS:
10754 case R_PPC64_GOT_DTPREL16_LO_DS:
10755 case R_PPC64_TPREL16_DS:
10756 case R_PPC64_TPREL16_LO_DS:
10757 case R_PPC64_DTPREL16_DS:
10758 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 10759 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
10760 mask = 3;
10761 /* If this reloc is against an lq insn, then the value must be
10762 a multiple of 16. This is somewhat of a hack, but the
10763 "correct" way to do this by defining _DQ forms of all the
10764 _DS relocs bloats all reloc switches in this file. It
10765 doesn't seem to make much sense to use any of these relocs
10766 in data, so testing the insn should be safe. */
494dac0c 10767 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 10768 mask = 15;
10769 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 10770 {
10771 (*_bfd_error_handler)
d003868e
AM		 10772 (_("%B: error: relocation %s not a multiple of %d"),
10773 input_bfd,
4ce794b7 10774 ppc64_elf_howto_table[r_type]->name,
adadcc0c 10775 mask + 1);
65f38f15 10776 bfd_set_error (bfd_error_bad_value);
b34976b6 10777 ret = FALSE;
65f38f15
AM		 10778 continue;
10779 }
10780 break;
5bd4f169
AM		 10781 }
10782
239e1f3a
AM		 10783 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
10784 because such sections are not SEC_ALLOC and thus ld.so will
10785 not process them. */
65f38f15 10786 if (unresolved_reloc
239e1f3a 10787 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 10788 && h->elf.def_dynamic))
9c07fe7c
AM		 10789 {
10790 (*_bfd_error_handler)
d003868e
AM		 10791 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
10792 input_bfd,
10793 input_section,
9c07fe7c 10794 (long) rel->r_offset,
7b609f53 10795 ppc64_elf_howto_table[(int) r_type]->name,
039b3fef 10796 h->elf.root.root.string);
b34976b6 10797 ret = FALSE;
9c07fe7c 10798 }
5bd4f169 10799
65f38f15 10800 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 10801 input_bfd,
10802 input_section,
10803 contents,
411e1bfb 10804 rel->r_offset,
5bd4f169
AM		 10805 relocation,
10806 addend);
10807
ef60b7ff 10808 if (r != bfd_reloc_ok)
5bd4f169 10809 {
cd27b276
AM		 10810 if (sym_name == NULL)
10811 sym_name = "(null)";
10812 if (r == bfd_reloc_overflow)
5bd4f169 10813 {
cd27b276
AM		 10814 if (warned)
10815 continue;
10816 if (h != NULL
039b3fef 10817 && h->elf.root.type == bfd_link_hash_undefweak
4ce794b7 10818 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 10819 {
10820 /* Assume this is a call protected by other code that
10821 detects the symbol is undefined. If this is the case,
10822 we can safely ignore the overflow. If not, the
10823 program is hosed anyway, and a little warning isn't
10824 going to help. */
10825
10826 continue;
10827 }
10828
ef60b7ff 10829 if (!((*info->callbacks->reloc_overflow)
dfeffb9f
L		 10830 (info, (h ? &h->elf.root : NULL), sym_name,
10831 ppc64_elf_howto_table[r_type]->name,
411e1bfb 10832 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 10833 return FALSE;
ef60b7ff
AM		 10834 }
10835 else
10836 {
10837 (*_bfd_error_handler)
d003868e
AM		 10838 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
10839 input_bfd,
10840 input_section,
7b609f53 10841 (long) rel->r_offset,
4ce794b7 10842 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 10843 sym_name,
10844 (int) r);
b34976b6 10845 ret = FALSE;
ef60b7ff 10846 }
5bd4f169 10847 }
5bd4f169
AM		 10848 }
10849
645ea6a9
AM		 10850 /* If we're emitting relocations, then shortly after this function
10851 returns, reloc offsets and addends for this section will be
10852 adjusted. Worse, reloc symbol indices will be for the output
8860955f
AM		 10853 file rather than the input. Save a copy of the relocs for
10854 opd_entry_value. */
10855 if (is_opd && info->emitrelocations)
10856 {
10857 bfd_size_type amt;
10858 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
10859 rel = bfd_alloc (input_bfd, amt);
10860 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
10861 ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
10862 if (rel == NULL)
10863 return FALSE;
10864 memcpy (rel, relocs, amt);
10865 }
5bd4f169
AM		 10866 return ret;
10867}
10868
754021d0
AM		 10869/* Adjust the value of any local symbols in opd sections. */
10870
10871static bfd_boolean
10872ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
10873 const char *name ATTRIBUTE_UNUSED,
10874 Elf_Internal_Sym *elfsym,
10875 asection *input_sec,
10876 struct elf_link_hash_entry *h)
10877{
4025353c 10878 long *opd_adjust, adjust;
754021d0
AM		 10879 bfd_vma value;
10880
4025353c
AM		 10881 if (h != NULL)
10882 return TRUE;
10883
10884 opd_adjust = get_opd_info (input_sec);
10885 if (opd_adjust == NULL)
754021d0
AM		 10886 return TRUE;
10887
10888 value = elfsym->st_value - input_sec->output_offset;
10889 if (!info->relocatable)
10890 value -= input_sec->output_section->vma;
10891
3f764659 10892 adjust = opd_adjust[value / 8];
4025353c
AM		 10893 if (adjust == -1)
10894 elfsym->st_value = 0;
10895 else
10896 elfsym->st_value += adjust;
754021d0
AM		 10897 return TRUE;
10898}
10899
5bd4f169
AM		 10900/* Finish up dynamic symbol handling. We set the contents of various
10901 dynamic sections here. */
10902
b34976b6 10903static bfd_boolean
4ce794b7
AM		 10904ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
10905 struct bfd_link_info *info,
10906 struct elf_link_hash_entry *h,
10907 Elf_Internal_Sym *sym)
5bd4f169 10908{
65f38f15 10909 struct ppc_link_hash_table *htab;
5bd4f169 10910 bfd *dynobj;
8387904d
AM		 10911 struct plt_entry *ent;
10912 Elf_Internal_Rela rela;
10913 bfd_byte *loc;
5bd4f169 10914
65f38f15
AM		 10915 htab = ppc_hash_table (info);
10916 dynobj = htab->elf.dynobj;
5bd4f169 10917
8387904d
AM		 10918 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10919 if (ent->plt.offset != (bfd_vma) -1)
10920 {
10921 /* This symbol has an entry in the procedure linkage
10922 table. Set it up. */
10923
10924 if (htab->plt == NULL
10925 || htab->relplt == NULL
10926 || htab->glink == NULL)
10927 abort ();
10928
10929 /* Create a JMP_SLOT reloc to inform the dynamic linker to
10930 fill in the PLT entry. */
10931 rela.r_offset = (htab->plt->output_section->vma
10932 + htab->plt->output_offset
10933 + ent->plt.offset);
10934 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
10935 rela.r_addend = ent->addend;
10936
10937 loc = htab->relplt->contents;
10938 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
10939 * sizeof (Elf64_External_Rela));
10940 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
10941 }
5bd4f169 10942
f5385ebf 10943 if (h->needs_copy)
5bd4f169 10944 {
5bd4f169 10945 Elf_Internal_Rela rela;
947216bf 10946 bfd_byte *loc;
5bd4f169 10947
65f38f15 10948 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 10949
65f38f15
AM		 10950 if (h->dynindx == -1
10951 || (h->root.type != bfd_link_hash_defined
10952 && h->root.type != bfd_link_hash_defweak)
4ce794b7 10953 || htab->relbss == NULL)
65f38f15 10954 abort ();
5bd4f169
AM		 10955
10956 rela.r_offset = (h->root.u.def.value
10957 + h->root.u.def.section->output_section->vma
10958 + h->root.u.def.section->output_offset);
10959 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
10960 rela.r_addend = 0;
4ce794b7
AM		 10961 loc = htab->relbss->contents;
10962 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 10963 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 10964 }
10965
5bd4f169
AM		 10966 /* Mark some specially defined symbols as absolute. */
10967 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
10968 sym->st_shndx = SHN_ABS;
10969
b34976b6 10970 return TRUE;
5bd4f169
AM		 10971}
10972
65f38f15
AM		 10973/* Used to decide how to sort relocs in an optimal manner for the
10974 dynamic linker, before writing them out. */
10975
10976static enum elf_reloc_type_class
4ce794b7 10977ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 10978{
04c9666a 10979 enum elf_ppc64_reloc_type r_type;
a33d1f77 10980
4ce794b7 10981 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 10982 switch (r_type)
65f38f15
AM		 10983 {
10984 case R_PPC64_RELATIVE:
10985 return reloc_class_relative;
10986 case R_PPC64_JMP_SLOT:
10987 return reloc_class_plt;
10988 case R_PPC64_COPY:
10989 return reloc_class_copy;
10990 default:
10991 return reloc_class_normal;
10992 }
10993}
10994
5bd4f169
AM		 10995/* Finish up the dynamic sections. */
10996
b34976b6 10997static bfd_boolean
4ce794b7
AM		 10998ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
10999 struct bfd_link_info *info)
5bd4f169 11000{
65f38f15
AM		 11001 struct ppc_link_hash_table *htab;
11002 bfd *dynobj;
5bd4f169 11003 asection *sdyn;
5bd4f169 11004
65f38f15
AM		 11005 htab = ppc_hash_table (info);
11006 dynobj = htab->elf.dynobj;
5bd4f169
AM		 11007 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
11008
65f38f15 11009 if (htab->elf.dynamic_sections_created)
5bd4f169 11010 {
5bd4f169
AM		 11011 Elf64_External_Dyn *dyncon, *dynconend;
11012
4ce794b7 11013 if (sdyn == NULL || htab->got == NULL)
65f38f15 11014 abort ();
5bd4f169
AM		 11015
11016 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 11017 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM		 11018 for (; dyncon < dynconend; dyncon++)
11019 {
11020 Elf_Internal_Dyn dyn;
19397422 11021 asection *s;
5bd4f169
AM		 11022
11023 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
11024
11025 switch (dyn.d_tag)
11026 {
65f38f15
AM		 11027 default:
11028 continue;
5bd4f169 11029
5d1634d7 11030 case DT_PPC64_GLINK:
4ce794b7 11031 s = htab->glink;
6348e046 11032 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 11033 /* We stupidly defined DT_PPC64_GLINK to be the start
11034 of glink rather than the first entry point, which is
11035 what ld.so needs, and now have a bigger stub to
11036 support automatic multiple TOCs. */
11037 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 11038 break;
11039
19397422
AM		 11040 case DT_PPC64_OPD:
11041 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 11042 if (s == NULL)
11043 continue;
11044 dyn.d_un.d_ptr = s->vma;
19397422
AM		 11045 break;
11046
11047 case DT_PPC64_OPDSZ:
11048 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 11049 if (s == NULL)
11050 continue;
eea6121a 11051 dyn.d_un.d_val = s->size;
19397422
AM		 11052 break;
11053
65f38f15 11054 case DT_PLTGOT:
4ce794b7 11055 s = htab->plt;
6348e046 11056 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 11057 break;
11058
11059 case DT_JMPREL:
4ce794b7 11060 s = htab->relplt;
6348e046 11061 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 11062 break;
5bd4f169 11063
65f38f15 11064 case DT_PLTRELSZ:
eea6121a 11065 dyn.d_un.d_val = htab->relplt->size;
5d1634d7
AM		 11066 break;
11067
11068 case DT_RELASZ:
11069 /* Don't count procedure linkage table relocs in the
11070 overall reloc count. */
4ce794b7 11071 s = htab->relplt;
6348e046
AM		 11072 if (s == NULL)
11073 continue;
eea6121a 11074 dyn.d_un.d_val -= s->size;
6348e046
AM		 11075 break;
11076
11077 case DT_RELA:
11078 /* We may not be using the standard ELF linker script.
11079 If .rela.plt is the first .rela section, we adjust
11080 DT_RELA to not include it. */
4ce794b7 11081 s = htab->relplt;
6348e046
AM		 11082 if (s == NULL)
11083 continue;
11084 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
11085 continue;
eea6121a 11086 dyn.d_un.d_ptr += s->size;
65f38f15 11087 break;
5bd4f169 11088 }
5bd4f169 11089
65f38f15 11090 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 11091 }
5bd4f169
AM		 11092 }
11093
eea6121a 11094 if (htab->got != NULL && htab->got->size != 0)
5d1634d7
AM		 11095 {
11096 /* Fill in the first entry in the global offset table.
11097 We use it to hold the link-time TOCbase. */
11098 bfd_put_64 (output_bfd,
60ee0d4a 11099 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 11100 htab->got->contents);
5d1634d7
AM		 11101
11102 /* Set .got entry size. */
4ce794b7 11103 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 11104 }
11105
eea6121a 11106 if (htab->plt != NULL && htab->plt->size != 0)
5d1634d7
AM		 11107 {
11108 /* Set .plt entry size. */
4ce794b7 11109 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 11110 = PLT_ENTRY_SIZE;
11111 }
11112
e717da7e 11113 /* We need to handle writing out multiple GOT sections ourselves,
7b53ace3
AM		 11114 since we didn't add them to DYNOBJ. We know dynobj is the first
11115 bfd. */
e717da7e
AM		 11116 while ((dynobj = dynobj->link_next) != NULL)
11117 {
11118 asection *s;
7b53ace3 11119
ee75fd95 11120 if (!is_ppc64_elf_target (dynobj->xvec))
7b53ace3
AM		 11121 continue;
11122
e717da7e
AM		 11123 s = ppc64_elf_tdata (dynobj)->got;
11124 if (s != NULL
eea6121a 11125 && s->size != 0
e717da7e
AM		 11126 && s->output_section != bfd_abs_section_ptr
11127 && !bfd_set_section_contents (output_bfd, s->output_section,
11128 s->contents, s->output_offset,
eea6121a 11129 s->size))
e717da7e
AM		 11130 return FALSE;
11131 s = ppc64_elf_tdata (dynobj)->relgot;
11132 if (s != NULL
eea6121a 11133 && s->size != 0
e717da7e
AM		 11134 && s->output_section != bfd_abs_section_ptr
11135 && !bfd_set_section_contents (output_bfd, s->output_section,
11136 s->contents, s->output_offset,
eea6121a 11137 s->size))
e717da7e
AM		 11138 return FALSE;
11139 }
f6c52c13 11140
b34976b6 11141 return TRUE;
5bd4f169
AM		 11142}
11143
5bd4f169 11144#include "elf64-target.h"
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