projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
This adjusts equate handling by
[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
CommitLineData
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;
6edfbbad
DJ		 4770 void *vpp;
4771
ec338859
AM		 4772 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4773 sec, r_symndx);
4774 if (s == NULL)
b34976b6 4775 return FALSE;
ec338859 4776
6edfbbad
DJ		 4777 vpp = &elf_section_data (s)->local_dynrel;
4778 head = (struct ppc_dyn_relocs **) vpp;
65f38f15 4779 }
ec338859
AM		 4780
4781 p = *head;
4782 if (p == NULL || p->sec != sec)
4783 {
4ce794b7 4784 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4785 if (p == NULL)
b34976b6 4786 return FALSE;
ec338859
AM		 4787 p->next = *head;
4788 *head = p;
4789 p->sec = sec;
4790 p->count = 0;
4791 p->pc_count = 0;
4792 }
4793
4794 p->count += 1;
411e1bfb 4795 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4796 p->pc_count += 1;
65f38f15 4797 }
5bd4f169 4798 break;
65f38f15
AM		 4799
4800 default:
96e0dda4 4801 break;
5bd4f169
AM		 4802 }
4803 }
4804
b34976b6 4805 return TRUE;
5bd4f169
AM		 4806}
4807
8387904d
AM		 4808/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
4809 of the code entry point, and its section. */
4810
4811static bfd_vma
4812opd_entry_value (asection *opd_sec,
4813 bfd_vma offset,
4814 asection **code_sec,
4815 bfd_vma *code_off)
4816{
4817 bfd *opd_bfd = opd_sec->owner;
8860955f 4818 Elf_Internal_Rela *relocs;
8387904d 4819 Elf_Internal_Rela *lo, *hi, *look;
645ea6a9 4820 bfd_vma val;
8387904d 4821
4b85d634
AM		 4822 /* No relocs implies we are linking a --just-symbols object. */
4823 if (opd_sec->reloc_count == 0)
4824 {
4825 bfd_vma val;
4826
4827 if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8))
4828 return (bfd_vma) -1;
3b36f7e6 4829
4b85d634
AM		 4830 if (code_sec != NULL)
4831 {
4832 asection *sec, *likely = NULL;
4833 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
4834 if (sec->vma <= val
4835 && (sec->flags & SEC_LOAD) != 0
4836 && (sec->flags & SEC_ALLOC) != 0)
4837 likely = sec;
4838 if (likely != NULL)
4839 {
4840 *code_sec = likely;
4841 if (code_off != NULL)
4842 *code_off = val - likely->vma;
4843 }
4844 }
4845 return val;
4846 }
4847
8860955f
AM		 4848 relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
4849 if (relocs == NULL)
4850 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
645ea6a9 4851
8387904d 4852 /* Go find the opd reloc at the sym address. */
8860955f 4853 lo = relocs;
8387904d
AM		 4854 BFD_ASSERT (lo != NULL);
4855 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
645ea6a9 4856 val = (bfd_vma) -1;
8387904d
AM		 4857 while (lo < hi)
4858 {
4859 look = lo + (hi - lo) / 2;
4860 if (look->r_offset < offset)
4861 lo = look + 1;
4862 else if (look->r_offset > offset)
4863 hi = look;
4864 else
4865 {
4866 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (opd_bfd)->symtab_hdr;
4867 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
4868 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
4869 {
4870 unsigned long symndx = ELF64_R_SYM (look->r_info);
8387904d
AM		 4871 asection *sec;
4872
4873 if (symndx < symtab_hdr->sh_info)
4874 {
4875 Elf_Internal_Sym *sym;
4876
4877 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
4878 if (sym == NULL)
4879 {
4880 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
4881 symtab_hdr->sh_info,
4882 0, NULL, NULL, NULL);
4883 if (sym == NULL)
645ea6a9 4884 break;
8387904d
AM		 4885 symtab_hdr->contents = (bfd_byte *) sym;
4886 }
4887
4888 sym += symndx;
4889 val = sym->st_value;
4890 sec = NULL;
4891 if ((sym->st_shndx != SHN_UNDEF
4892 && sym->st_shndx < SHN_LORESERVE)
4893 || sym->st_shndx > SHN_HIRESERVE)
4894 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
4895 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
4896 }
4897 else
4898 {
4899 struct elf_link_hash_entry **sym_hashes;
4900 struct elf_link_hash_entry *rh;
4901
4902 sym_hashes = elf_sym_hashes (opd_bfd);
4903 rh = sym_hashes[symndx - symtab_hdr->sh_info];
4904 while (rh->root.type == bfd_link_hash_indirect
4905 || rh->root.type == bfd_link_hash_warning)
4906 rh = ((struct elf_link_hash_entry *) rh->root.u.i.link);
4907 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
4908 || rh->root.type == bfd_link_hash_defweak);
4909 val = rh->root.u.def.value;
4910 sec = rh->root.u.def.section;
4911 }
4912 val += look->r_addend;
4913 if (code_off != NULL)
4914 *code_off = val;
4915 if (code_sec != NULL)
4916 *code_sec = sec;
4917 if (sec != NULL && sec->output_section != NULL)
4918 val += sec->output_section->vma + sec->output_offset;
8387904d
AM		 4919 }
4920 break;
4921 }
4922 }
645ea6a9 4923
645ea6a9 4924 return val;
8387904d
AM		 4925}
4926
5bd4f169
AM		 4927/* Return the section that should be marked against GC for a given
4928 relocation. */
4929
4930static asection *
4ce794b7 4931ppc64_elf_gc_mark_hook (asection *sec,
ccfa59ea 4932 struct bfd_link_info *info,
4ce794b7
AM		 4933 Elf_Internal_Rela *rel,
4934 struct elf_link_hash_entry *h,
4935 Elf_Internal_Sym *sym)
5bd4f169 4936{
ccfa59ea
AM		 4937 asection *rsec;
4938
4939 /* First mark all our entry sym sections. */
4940 if (info->gc_sym_list != NULL)
4941 {
4942 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4943 struct bfd_sym_chain *sym = info->gc_sym_list;
4944
4945 info->gc_sym_list = NULL;
4946 do
4947 {
4948 struct ppc_link_hash_entry *eh;
4949
4950 eh = (struct ppc_link_hash_entry *)
4951 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
4952 if (eh == NULL)
4953 continue;
4954 if (eh->elf.root.type != bfd_link_hash_defined
4955 && eh->elf.root.type != bfd_link_hash_defweak)
4956 continue;
4957
c4f68ce3
AM		 4958 if (eh->is_func_descriptor
4959 && (eh->oh->elf.root.type == bfd_link_hash_defined
4960 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea 4961 rsec = eh->oh->elf.root.u.def.section;
8387904d
AM		 4962 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
4963 && opd_entry_value (eh->elf.root.u.def.section,
4964 eh->elf.root.u.def.value,
4965 &rsec, NULL) != (bfd_vma) -1)
4966 ;
ccfa59ea
AM		 4967 else
4968 continue;
4969
4970 if (!rsec->gc_mark)
4971 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4972
4973 rsec = eh->elf.root.u.def.section;
4974 if (!rsec->gc_mark)
4975 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4976
4977 sym = sym->next;
4978 }
4979 while (sym != NULL);
4980 }
4981
4982 /* Syms return NULL if we're marking .opd, so we avoid marking all
4983 function sections, as all functions are referenced in .opd. */
4984 rsec = NULL;
4985 if (get_opd_info (sec) != NULL)
4986 return rsec;
1e2f5b6e 4987
5bd4f169
AM		 4988 if (h != NULL)
4989 {
04c9666a 4990 enum elf_ppc64_reloc_type r_type;
ccfa59ea 4991 struct ppc_link_hash_entry *eh;
a33d1f77 4992
4ce794b7 4993 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4994 switch (r_type)
5bd4f169
AM		 4995 {
4996 case R_PPC64_GNU_VTINHERIT:
4997 case R_PPC64_GNU_VTENTRY:
4998 break;
4999
5000 default:
5001 switch (h->root.type)
5002 {
5003 case bfd_link_hash_defined:
5004 case bfd_link_hash_defweak:
ccfa59ea 5005 eh = (struct ppc_link_hash_entry *) h;
c4f68ce3
AM		 5006 if (eh->oh != NULL
5007 && eh->oh->is_func_descriptor
5008 && (eh->oh->elf.root.type == bfd_link_hash_defined
5009 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea 5010 eh = eh->oh;
1e2f5b6e
AM		 5011
5012 /* Function descriptor syms cause the associated
5013 function code sym section to be marked. */
c4f68ce3
AM		 5014 if (eh->is_func_descriptor
5015 && (eh->oh->elf.root.type == bfd_link_hash_defined
5016 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea
AM		 5017 {
5018 /* They also mark their opd section. */
5019 if (!eh->elf.root.u.def.section->gc_mark)
5020 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
5021 ppc64_elf_gc_mark_hook);
5022
5023 rsec = eh->oh->elf.root.u.def.section;
5024 }
8387904d
AM		 5025 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5026 && opd_entry_value (eh->elf.root.u.def.section,
5027 eh->elf.root.u.def.value,
5028 &rsec, NULL) != (bfd_vma) -1)
5029 {
5030 if (!eh->elf.root.u.def.section->gc_mark)
5031 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
5032 ppc64_elf_gc_mark_hook);
5033 }
ccfa59ea 5034 else
1e2f5b6e
AM		 5035 rsec = h->root.u.def.section;
5036 break;
5bd4f169
AM		 5037
5038 case bfd_link_hash_common:
1e2f5b6e
AM		 5039 rsec = h->root.u.c.p->section;
5040 break;
5bd4f169
AM		 5041
5042 default:
5043 break;
5044 }
5045 }
5046 }
5047 else
5048 {
1e2f5b6e
AM		 5049 asection **opd_sym_section;
5050
5051 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
ccfa59ea 5052 opd_sym_section = get_opd_info (rsec);
1e2f5b6e 5053 if (opd_sym_section != NULL)
ccfa59ea
AM		 5054 {
5055 if (!rsec->gc_mark)
5056 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
5057
b4f4e59f 5058 rsec = opd_sym_section[(sym->st_value + rel->r_addend) / 8];
ccfa59ea 5059 }
5bd4f169
AM		 5060 }
5061
1e2f5b6e 5062 return rsec;
5bd4f169
AM		 5063}
5064
65f38f15
AM		 5065/* Update the .got, .plt. and dynamic reloc reference counts for the
5066 section being removed. */
5bd4f169 5067
b34976b6 5068static bfd_boolean
4ce794b7
AM		 5069ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5070 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 5071{
411e1bfb 5072 struct ppc_link_hash_table *htab;
5bd4f169
AM		 5073 Elf_Internal_Shdr *symtab_hdr;
5074 struct elf_link_hash_entry **sym_hashes;
411e1bfb 5075 struct got_entry **local_got_ents;
5bd4f169 5076 const Elf_Internal_Rela *rel, *relend;
5bd4f169 5077
680a3378
AM		 5078 if ((sec->flags & SEC_ALLOC) == 0)
5079 return TRUE;
5080
ec338859
AM		 5081 elf_section_data (sec)->local_dynrel = NULL;
5082
411e1bfb 5083 htab = ppc_hash_table (info);
5bd4f169
AM		 5084 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5085 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 5086 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 5087
5088 relend = relocs + sec->reloc_count;
5089 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 5090 {
5091 unsigned long r_symndx;
04c9666a 5092 enum elf_ppc64_reloc_type r_type;
58ac9f71 5093 struct elf_link_hash_entry *h = NULL;
411e1bfb 5094 char tls_type = 0;
5bd4f169 5095
a33d1f77 5096 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 5097 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 5098 if (r_symndx >= symtab_hdr->sh_info)
5099 {
5100 struct ppc_link_hash_entry *eh;
5101 struct ppc_dyn_relocs **pp;
5102 struct ppc_dyn_relocs *p;
5103
5104 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3eb128b2
AM		 5105 while (h->root.type == bfd_link_hash_indirect
5106 || h->root.type == bfd_link_hash_warning)
5107 h = (struct elf_link_hash_entry *) h->root.u.i.link;
58ac9f71
AM		 5108 eh = (struct ppc_link_hash_entry *) h;
5109
5110 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5111 if (p->sec == sec)
5112 {
5113 /* Everything must go for SEC. */
5114 *pp = p->next;
5115 break;
5116 }
5117 }
5118
a33d1f77
AM		 5119 switch (r_type)
5120 {
411e1bfb
AM		 5121 case R_PPC64_GOT_TLSLD16:
5122 case R_PPC64_GOT_TLSLD16_LO:
5123 case R_PPC64_GOT_TLSLD16_HI:
5124 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 5125 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 5126 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5127 goto dogot;
5128
5129 case R_PPC64_GOT_TLSGD16:
5130 case R_PPC64_GOT_TLSGD16_LO:
5131 case R_PPC64_GOT_TLSGD16_HI:
5132 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5133 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5134 goto dogot;
5135
5136 case R_PPC64_GOT_TPREL16_DS:
5137 case R_PPC64_GOT_TPREL16_LO_DS:
5138 case R_PPC64_GOT_TPREL16_HI:
5139 case R_PPC64_GOT_TPREL16_HA:
5140 tls_type = TLS_TLS | TLS_TPREL;
5141 goto dogot;
5142
5143 case R_PPC64_GOT_DTPREL16_DS:
5144 case R_PPC64_GOT_DTPREL16_LO_DS:
5145 case R_PPC64_GOT_DTPREL16_HI:
5146 case R_PPC64_GOT_DTPREL16_HA:
5147 tls_type = TLS_TLS | TLS_DTPREL;
5148 goto dogot;
5149
a33d1f77
AM		 5150 case R_PPC64_GOT16:
5151 case R_PPC64_GOT16_DS:
5152 case R_PPC64_GOT16_HA:
5153 case R_PPC64_GOT16_HI:
5154 case R_PPC64_GOT16_LO:
5155 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 5156 dogot:
5157 {
5158 struct got_entry *ent;
5159
58ac9f71
AM		 5160 if (h != NULL)
5161 ent = h->got.glist;
411e1bfb
AM		 5162 else
5163 ent = local_got_ents[r_symndx];
5164
5165 for (; ent != NULL; ent = ent->next)
5166 if (ent->addend == rel->r_addend
e717da7e 5167 && ent->owner == abfd
411e1bfb
AM		 5168 && ent->tls_type == tls_type)
5169 break;
5170 if (ent == NULL)
5171 abort ();
5172 if (ent->got.refcount > 0)
5173 ent->got.refcount -= 1;
5174 }
a33d1f77 5175 break;
65f38f15 5176
a33d1f77
AM		 5177 case R_PPC64_PLT16_HA:
5178 case R_PPC64_PLT16_HI:
5179 case R_PPC64_PLT16_LO:
5180 case R_PPC64_PLT32:
5181 case R_PPC64_PLT64:
721956f4
AM		 5182 case R_PPC64_REL14:
5183 case R_PPC64_REL14_BRNTAKEN:
5184 case R_PPC64_REL14_BRTAKEN:
5d1634d7 5185 case R_PPC64_REL24:
58ac9f71 5186 if (h != NULL)
5d1634d7 5187 {
411e1bfb
AM		 5188 struct plt_entry *ent;
5189
411e1bfb
AM		 5190 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5191 if (ent->addend == rel->r_addend)
5192 break;
5193 if (ent == NULL)
5194 abort ();
5195 if (ent->plt.refcount > 0)
5196 ent->plt.refcount -= 1;
5d1634d7 5197 }
e86ce104 5198 break;
5d1634d7 5199
a33d1f77
AM		 5200 default:
5201 break;
5202 }
5203 }
b34976b6 5204 return TRUE;
5bd4f169
AM		 5205}
5206
deb0e272
AM		 5207/* The maximum size of .sfpr. */
5208#define SFPR_MAX (218*4)
5209
5210struct sfpr_def_parms
5211{
699733f6
AM		 5212 const char name[12];
5213 unsigned char lo, hi;
deb0e272
AM		 5214 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
5215 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
5216};
5217
5218/* Auto-generate _save*, _rest* functions in .sfpr. */
5219
5220static unsigned int
5221sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
5222{
5223 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5224 unsigned int i;
5225 size_t len = strlen (parm->name);
5226 bfd_boolean writing = FALSE;
699733f6 5227 char sym[16];
deb0e272
AM		 5228
5229 memcpy (sym, parm->name, len);
5230 sym[len + 2] = 0;
5231
5232 for (i = parm->lo; i <= parm->hi; i++)
5233 {
5234 struct elf_link_hash_entry *h;
5235
5236 sym[len + 0] = i / 10 + '0';
5237 sym[len + 1] = i % 10 + '0';
5238 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
5239 if (h != NULL
f5385ebf 5240 && !h->def_regular)
deb0e272
AM		 5241 {
5242 h->root.type = bfd_link_hash_defined;
5243 h->root.u.def.section = htab->sfpr;
5244 h->root.u.def.value = htab->sfpr->size;
5245 h->type = STT_FUNC;
f5385ebf 5246 h->def_regular = 1;
deb0e272
AM		 5247 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
5248 writing = TRUE;
5249 if (htab->sfpr->contents == NULL)
5250 {
5251 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
5252 if (htab->sfpr->contents == NULL)
5253 return FALSE;
5254 }
5255 }
5256 if (writing)
5257 {
5258 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
5259 if (i != parm->hi)
5260 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
5261 else
5262 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
5263 htab->sfpr->size = p - htab->sfpr->contents;
5264 }
5265 }
5266
5267 return TRUE;
5268}
5269
5270static bfd_byte *
5271savegpr0 (bfd *abfd, bfd_byte *p, int r)
5272{
5273 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5274 return p + 4;
5275}
5276
5277static bfd_byte *
5278savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
5279{
5280 p = savegpr0 (abfd, p, r);
5281 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5282 p = p + 4;
5283 bfd_put_32 (abfd, BLR, p);
5284 return p + 4;
5285}
5286
5287static bfd_byte *
5288restgpr0 (bfd *abfd, bfd_byte *p, int r)
5289{
5290 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5291 return p + 4;
5292}
5293
5294static bfd_byte *
5295restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
5296{
5297 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5298 p = p + 4;
5299 p = restgpr0 (abfd, p, r);
5300 bfd_put_32 (abfd, MTLR_R0, p);
5301 p = p + 4;
5302 if (r == 29)
5303 {
5304 p = restgpr0 (abfd, p, 30);
5305 p = restgpr0 (abfd, p, 31);
5306 }
5307 bfd_put_32 (abfd, BLR, p);
5308 return p + 4;
5309}
5310
5311static bfd_byte *
5312savegpr1 (bfd *abfd, bfd_byte *p, int r)
5313{
5314 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5315 return p + 4;
5316}
5317
5318static bfd_byte *
5319savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
5320{
5321 p = savegpr1 (abfd, p, r);
5322 bfd_put_32 (abfd, BLR, p);
5323 return p + 4;
5324}
5325
5326static bfd_byte *
5327restgpr1 (bfd *abfd, bfd_byte *p, int r)
5328{
5329 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5330 return p + 4;
5331}
5332
5333static bfd_byte *
5334restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
5335{
5336 p = restgpr1 (abfd, p, r);
5337 bfd_put_32 (abfd, BLR, p);
5338 return p + 4;
5339}
5340
5341static bfd_byte *
5342savefpr (bfd *abfd, bfd_byte *p, int r)
5343{
5344 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5345 return p + 4;
5346}
5347
5348static bfd_byte *
5349savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
5350{
5351 p = savefpr (abfd, p, r);
5352 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5353 p = p + 4;
5354 bfd_put_32 (abfd, BLR, p);
5355 return p + 4;
5356}
5357
5358static bfd_byte *
5359restfpr (bfd *abfd, bfd_byte *p, int r)
5360{
5361 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5362 return p + 4;
5363}
5364
5365static bfd_byte *
5366restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
5367{
5368 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5369 p = p + 4;
5370 p = restfpr (abfd, p, r);
5371 bfd_put_32 (abfd, MTLR_R0, p);
5372 p = p + 4;
5373 if (r == 29)
5374 {
5375 p = restfpr (abfd, p, 30);
5376 p = restfpr (abfd, p, 31);
5377 }
5378 bfd_put_32 (abfd, BLR, p);
5379 return p + 4;
5380}
5381
5382static bfd_byte *
5383savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
5384{
5385 p = savefpr (abfd, p, r);
5386 bfd_put_32 (abfd, BLR, p);
5387 return p + 4;
5388}
5389
5390static bfd_byte *
5391restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
5392{
5393 p = restfpr (abfd, p, r);
5394 bfd_put_32 (abfd, BLR, p);
5395 return p + 4;
5396}
5397
5398static bfd_byte *
5399savevr (bfd *abfd, bfd_byte *p, int r)
5400{
5401 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5402 p = p + 4;
5403 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
5404 return p + 4;
5405}
5406
5407static bfd_byte *
5408savevr_tail (bfd *abfd, bfd_byte *p, int r)
5409{
5410 p = savevr (abfd, p, r);
5411 bfd_put_32 (abfd, BLR, p);
5412 return p + 4;
5413}
5414
5415static bfd_byte *
5416restvr (bfd *abfd, bfd_byte *p, int r)
5417{
5418 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5419 p = p + 4;
5420 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
5421 return p + 4;
5422}
5423
5424static bfd_byte *
5425restvr_tail (bfd *abfd, bfd_byte *p, int r)
5426{
5427 p = restvr (abfd, p, r);
5428 bfd_put_32 (abfd, BLR, p);
5429 return p + 4;
5430}
5431
e86ce104
AM		 5432/* Called via elf_link_hash_traverse to transfer dynamic linking
5433 information on function code symbol entries to their corresponding
5434 function descriptor symbol entries. */
deb0e272 5435
b34976b6 5436static bfd_boolean
4ce794b7 5437func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5438{
e86ce104 5439 struct bfd_link_info *info;
65f38f15 5440 struct ppc_link_hash_table *htab;
411e1bfb 5441 struct plt_entry *ent;
50bc7936
AM		 5442 struct ppc_link_hash_entry *fh;
5443 struct ppc_link_hash_entry *fdh;
5444 bfd_boolean force_local;
5bd4f169 5445
50bc7936
AM		 5446 fh = (struct ppc_link_hash_entry *) h;
5447 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 5448 return TRUE;
e86ce104 5449
50bc7936
AM		 5450 if (fh->elf.root.type == bfd_link_hash_warning)
5451 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 5452
4ce794b7 5453 info = inf;
65f38f15 5454 htab = ppc_hash_table (info);
5bd4f169 5455
c09bdfe5
AM		 5456 /* Resolve undefined references to dot-symbols as the value
5457 in the function descriptor, if we have one in a regular object.
5458 This is to satisfy cases like ".quad .foo". Calls to functions
5459 in dynamic objects are handled elsewhere. */
5460 if (fh->elf.root.type == bfd_link_hash_undefweak
5461 && fh->was_undefined
5462 && (fh->oh->elf.root.type == bfd_link_hash_defined
5463 || fh->oh->elf.root.type == bfd_link_hash_defweak)
5464 && get_opd_info (fh->oh->elf.root.u.def.section) != NULL
5465 && opd_entry_value (fh->oh->elf.root.u.def.section,
5466 fh->oh->elf.root.u.def.value,
5467 &fh->elf.root.u.def.section,
5468 &fh->elf.root.u.def.value) != (bfd_vma) -1)
5469 {
5470 fh->elf.root.type = fh->oh->elf.root.type;
f5385ebf 5471 fh->elf.forced_local = 1;
c09bdfe5
AM		 5472 }
5473
e86ce104
AM		 5474 /* If this is a function code symbol, transfer dynamic linking
5475 information to the function descriptor symbol. */
50bc7936 5476 if (!fh->is_func)
b34976b6 5477 return TRUE;
e86ce104 5478
50bc7936 5479 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 5480 if (ent->plt.refcount > 0)
5481 break;
50bc7936
AM		 5482 if (ent == NULL
5483 || fh->elf.root.root.string[0] != '.'
5484 || fh->elf.root.root.string[1] == '\0')
5485 return TRUE;
5bd4f169 5486
50bc7936
AM		 5487 /* Find the corresponding function descriptor symbol. Create it
5488 as undefined if necessary. */
5bd4f169 5489
50bc7936
AM		 5490 fdh = get_fdh (fh, htab);
5491 if (fdh != NULL)
5492 while (fdh->elf.root.type == bfd_link_hash_indirect
5493 || fdh->elf.root.type == bfd_link_hash_warning)
5494 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 5495
50bc7936
AM		 5496 if (fdh == NULL
5497 && info->shared
5498 && (fh->elf.root.type == bfd_link_hash_undefined
5499 || fh->elf.root.type == bfd_link_hash_undefweak))
5500 {
908b32fc 5501 fdh = make_fdh (info, fh);
bb700d78
AM		 5502 if (fdh == NULL)
5503 return FALSE;
50bc7936 5504 }
648cca2c 5505
908b32fc 5506 /* Fake function descriptors are made undefweak. If the function
433817dd
AM		 5507 code symbol is strong undefined, make the fake sym the same.
5508 If the function code symbol is defined, then force the fake
5509 descriptor local; We can't support overriding of symbols in a
5510 shared library on a fake descriptor. */
908b32fc
AM		 5511
5512 if (fdh != NULL
5513 && fdh->fake
433817dd 5514 && fdh->elf.root.type == bfd_link_hash_undefweak)
908b32fc 5515 {
433817dd
AM		 5516 if (fh->elf.root.type == bfd_link_hash_undefined)
5517 {
5518 fdh->elf.root.type = bfd_link_hash_undefined;
5519 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
5520 }
5521 else if (fh->elf.root.type == bfd_link_hash_defined
5522 || fh->elf.root.type == bfd_link_hash_defweak)
5523 {
5524 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
5525 }
908b32fc
AM		 5526 }
5527
50bc7936 5528 if (fdh != NULL
f5385ebf 5529 && !fdh->elf.forced_local
50bc7936 5530 && (info->shared
f5385ebf
AM		 5531 || fdh->elf.def_dynamic
5532 || fdh->elf.ref_dynamic
50bc7936
AM		 5533 || (fdh->elf.root.type == bfd_link_hash_undefweak
5534 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
5535 {
5536 if (fdh->elf.dynindx == -1)
c152c796 5537 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936 5538 return FALSE;
f5385ebf
AM		 5539 fdh->elf.ref_regular |= fh->elf.ref_regular;
5540 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
5541 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
5542 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
50bc7936 5543 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 5544 {
40d16e0b 5545 move_plt_plist (fh, fdh);
f5385ebf 5546 fdh->elf.needs_plt = 1;
e86ce104 5547 }
50bc7936 5548 fdh->is_func_descriptor = 1;
34814b9f
AM		 5549 fdh->oh = fh;
5550 fh->oh = fdh;
e86ce104
AM		 5551 }
5552
50bc7936
AM		 5553 /* Now that the info is on the function descriptor, clear the
5554 function code sym info. Any function code syms for which we
5555 don't have a definition in a regular file, we force local.
5556 This prevents a shared library from exporting syms that have
5557 been imported from another library. Function code syms that
5558 are really in the library we must leave global to prevent the
5559 linker dragging in a definition from a static library. */
93f3fa99
AM		 5560 force_local = (!fh->elf.def_regular
5561 || fdh == NULL
5562 || !fdh->elf.def_regular
5563 || fdh->elf.forced_local);
50bc7936
AM		 5564 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
5565
b34976b6 5566 return TRUE;
e86ce104 5567}
40b8271b 5568
e86ce104 5569/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 5570 this hook to a) provide some gcc support functions, and b) transfer
5571 dynamic linking information gathered so far on function code symbol
5572 entries, to their corresponding function descriptor symbol entries. */
deb0e272 5573
b34976b6 5574static bfd_boolean
4ce794b7
AM		 5575ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
5576 struct bfd_link_info *info)
e86ce104
AM		 5577{
5578 struct ppc_link_hash_table *htab;
82bd7b59 5579 unsigned int i;
deb0e272
AM		 5580 const struct sfpr_def_parms funcs[] =
5581 {
5582 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
5583 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
5584 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
5585 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
5586 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
5587 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
5588 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
5589 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
5590 { "._savef", 14, 31, savefpr, savefpr1_tail },
5591 { "._restf", 14, 31, restfpr, restfpr1_tail },
5592 { "_savevr_", 20, 31, savevr, savevr_tail },
5593 { "_restvr_", 20, 31, restvr, restvr_tail }
5594 };
e86ce104
AM		 5595
5596 htab = ppc_hash_table (info);
82bd7b59
AM		 5597 if (htab->sfpr == NULL)
5598 /* We don't have any relocs. */
b34976b6 5599 return TRUE;
82bd7b59 5600
deb0e272
AM		 5601 /* Provide any missing _save* and _rest* functions. */
5602 htab->sfpr->size = 0;
5603 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
5604 if (!sfpr_define (info, &funcs[i]))
5605 return FALSE;
82bd7b59 5606
4ce794b7 5607 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 5608
eea6121a 5609 if (htab->sfpr->size == 0)
8423293d 5610 htab->sfpr->flags |= SEC_EXCLUDE;
82bd7b59 5611
b34976b6 5612 return TRUE;
e86ce104
AM		 5613}
5614
5615/* Adjust a symbol defined by a dynamic object and referenced by a
5616 regular object. The current definition is in some section of the
5617 dynamic object, but we're not including those sections. We have to
5618 change the definition to something the rest of the link can
5619 understand. */
5620
b34976b6 5621static bfd_boolean
4ce794b7
AM		 5622ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5623 struct elf_link_hash_entry *h)
e86ce104
AM		 5624{
5625 struct ppc_link_hash_table *htab;
e86ce104
AM		 5626 asection *s;
5627 unsigned int power_of_two;
5628
5629 htab = ppc_hash_table (info);
5630
5631 /* Deal with function syms. */
5632 if (h->type == STT_FUNC
f5385ebf 5633 || h->needs_plt)
e86ce104
AM		 5634 {
5635 /* Clear procedure linkage table information for any symbol that
5636 won't need a .plt entry. */
411e1bfb
AM		 5637 struct plt_entry *ent;
5638 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5639 if (ent->plt.refcount > 0)
5640 break;
8387904d 5641 if (ent == NULL
9c7a29a3
AM		 5642 || SYMBOL_CALLS_LOCAL (info, h)
5643 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5644 && h->root.type == bfd_link_hash_undefweak))
40b8271b 5645 {
411e1bfb 5646 h->plt.plist = NULL;
f5385ebf 5647 h->needs_plt = 0;
40b8271b 5648 }
5bd4f169 5649 }
bbd7ec4a 5650 else
411e1bfb 5651 h->plt.plist = NULL;
5bd4f169
AM		 5652
5653 /* If this is a weak symbol, and there is a real definition, the
5654 processor independent code will have arranged for us to see the
5655 real definition first, and we can just use the same value. */
f6e332e6 5656 if (h->u.weakdef != NULL)
5bd4f169 5657 {
f6e332e6
AM		 5658 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5659 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5660 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5661 h->root.u.def.value = h->u.weakdef->root.u.def.value;
a23b6845 5662 if (ELIMINATE_COPY_RELOCS)
f6e332e6 5663 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 5664 return TRUE;
5bd4f169
AM		 5665 }
5666
5bd4f169
AM		 5667 /* If we are creating a shared library, we must presume that the
5668 only references to the symbol are via the global offset table.
5669 For such cases we need not do anything here; the relocations will
5670 be handled correctly by relocate_section. */
5671 if (info->shared)
b34976b6 5672 return TRUE;
5bd4f169 5673
65f38f15
AM		 5674 /* If there are no references to this symbol that do not use the
5675 GOT, we don't need to generate a copy reloc. */
f5385ebf 5676 if (!h->non_got_ref)
b34976b6 5677 return TRUE;
65f38f15 5678
f4656909 5679 if (ELIMINATE_COPY_RELOCS)
65f38f15 5680 {
f4656909
AM		 5681 struct ppc_link_hash_entry * eh;
5682 struct ppc_dyn_relocs *p;
65f38f15 5683
f4656909
AM		 5684 eh = (struct ppc_link_hash_entry *) h;
5685 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5686 {
5687 s = p->sec->output_section;
5688 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5689 break;
5690 }
5691
5692 /* If we didn't find any dynamic relocs in read-only sections, then
5693 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5694 if (p == NULL)
5695 {
f5385ebf 5696 h->non_got_ref = 0;
f4656909
AM		 5697 return TRUE;
5698 }
65f38f15
AM		 5699 }
5700
5d35169e 5701 if (h->plt.plist != NULL)
97b639ba
AM		 5702 {
5703 /* We should never get here, but unfortunately there are versions
5704 of gcc out there that improperly (for this ABI) put initialized
5705 function pointers, vtable refs and suchlike in read-only
5706 sections. Allow them to proceed, but warn that this might
5707 break at runtime. */
5708 (*_bfd_error_handler)
5709 (_("copy reloc against `%s' requires lazy plt linking; "
5710 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
5711 h->root.root.string);
5712 }
5d35169e
AM		 5713
5714 /* This is a reference to a symbol defined by a dynamic object which
5715 is not a function. */
5716
909272ee
AM		 5717 if (h->size == 0)
5718 {
5719 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
5720 h->root.root.string);
5721 return TRUE;
5722 }
5723
5bd4f169
AM		 5724 /* We must allocate the symbol in our .dynbss section, which will
5725 become part of the .bss section of the executable. There will be
5726 an entry for this symbol in the .dynsym section. The dynamic
5727 object will contain position independent code, so all references
5728 from the dynamic object to this symbol will go through the global
5729 offset table. The dynamic linker will use the .dynsym entry to
5730 determine the address it must put in the global offset table, so
5731 both the dynamic object and the regular object will refer to the
5732 same memory location for the variable. */
5bd4f169 5733
04c9666a
AM		 5734 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
5735 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 5736 runtime process image. We need to remember the offset into the
5737 .rela.bss section we are going to use. */
5738 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5739 {
eea6121a 5740 htab->relbss->size += sizeof (Elf64_External_Rela);
f5385ebf 5741 h->needs_copy = 1;
5bd4f169
AM		 5742 }
5743
5744 /* We need to figure out the alignment required for this symbol. I
5745 have no idea how ELF linkers handle this. */
5746 power_of_two = bfd_log2 (h->size);
5747 if (power_of_two > 4)
5748 power_of_two = 4;
5749
5750 /* Apply the required alignment. */
4ce794b7 5751 s = htab->dynbss;
eea6121a 5752 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
65f38f15 5753 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 5754 {
65f38f15 5755 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 5756 return FALSE;
5bd4f169
AM		 5757 }
5758
5759 /* Define the symbol as being at this point in the section. */
5760 h->root.u.def.section = s;
eea6121a 5761 h->root.u.def.value = s->size;
5bd4f169
AM		 5762
5763 /* Increment the section size to make room for the symbol. */
eea6121a 5764 s->size += h->size;
5bd4f169 5765
b34976b6 5766 return TRUE;
5bd4f169
AM		 5767}
5768
e86ce104
AM		 5769/* If given a function descriptor symbol, hide both the function code
5770 sym and the descriptor. */
5771static void
4ce794b7
AM		 5772ppc64_elf_hide_symbol (struct bfd_link_info *info,
5773 struct elf_link_hash_entry *h,
5774 bfd_boolean force_local)
e86ce104 5775{
34814b9f 5776 struct ppc_link_hash_entry *eh;
e86ce104
AM		 5777 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
5778
34814b9f
AM		 5779 eh = (struct ppc_link_hash_entry *) h;
5780 if (eh->is_func_descriptor)
e86ce104 5781 {
34814b9f 5782 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 5783
721956f4 5784 if (fh == NULL)
d1329ca3
AM		 5785 {
5786 const char *p, *q;
5787 struct ppc_link_hash_table *htab;
5788 char save;
5789
5790 /* We aren't supposed to use alloca in BFD because on
5791 systems which do not have alloca the version in libiberty
5792 calls xmalloc, which might cause the program to crash
5793 when it runs out of memory. This function doesn't have a
5794 return status, so there's no way to gracefully return an
5795 error. So cheat. We know that string[-1] can be safely
34814b9f
AM		 5796 accessed; It's either a string in an ELF string table,
5797 or allocated in an objalloc structure. */
d1329ca3 5798
34814b9f 5799 p = eh->elf.root.root.string - 1;
d1329ca3
AM		 5800 save = *p;
5801 *(char *) p = '.';
5802 htab = ppc_hash_table (info);
34814b9f
AM		 5803 fh = (struct ppc_link_hash_entry *)
5804 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5805 *(char *) p = save;
5806
5807 /* Unfortunately, if it so happens that the string we were
5808 looking for was allocated immediately before this string,
5809 then we overwrote the string terminator. That's the only
5810 reason the lookup should fail. */
5811 if (fh == NULL)
5812 {
34814b9f
AM		 5813 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
5814 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 5815 --q, --p;
34814b9f
AM		 5816 if (q < eh->elf.root.root.string && *p == '.')
5817 fh = (struct ppc_link_hash_entry *)
5818 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5819 }
5820 if (fh != NULL)
5821 {
34814b9f
AM		 5822 eh->oh = fh;
5823 fh->oh = eh;
d1329ca3
AM		 5824 }
5825 }
e86ce104 5826 if (fh != NULL)
34814b9f 5827 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM		 5828 }
5829}
5830
411e1bfb 5831static bfd_boolean
8843416a
AM		 5832get_sym_h (struct elf_link_hash_entry **hp,
5833 Elf_Internal_Sym **symp,
5834 asection **symsecp,
5835 char **tls_maskp,
5836 Elf_Internal_Sym **locsymsp,
5837 unsigned long r_symndx,
5838 bfd *ibfd)
411e1bfb
AM		 5839{
5840 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5841
5842 if (r_symndx >= symtab_hdr->sh_info)
5843 {
5844 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5845 struct elf_link_hash_entry *h;
5846
5847 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5848 while (h->root.type == bfd_link_hash_indirect
5849 || h->root.type == bfd_link_hash_warning)
5850 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5851
5852 if (hp != NULL)
5853 *hp = h;
5854
5855 if (symp != NULL)
5856 *symp = NULL;
5857
5858 if (symsecp != NULL)
5859 {
5860 asection *symsec = NULL;
5861 if (h->root.type == bfd_link_hash_defined
5862 || h->root.type == bfd_link_hash_defweak)
5863 symsec = h->root.u.def.section;
5864 *symsecp = symsec;
5865 }
5866
e7b938ca 5867 if (tls_maskp != NULL)
411e1bfb
AM		 5868 {
5869 struct ppc_link_hash_entry *eh;
5870
5871 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 5872 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 5873 }
5874 }
5875 else
5876 {
5877 Elf_Internal_Sym *sym;
5878 Elf_Internal_Sym *locsyms = *locsymsp;
5879
5880 if (locsyms == NULL)
5881 {
5882 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5883 if (locsyms == NULL)
5884 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5885 symtab_hdr->sh_info,
5886 0, NULL, NULL, NULL);
5887 if (locsyms == NULL)
5888 return FALSE;
5889 *locsymsp = locsyms;
5890 }
5891 sym = locsyms + r_symndx;
5892
5893 if (hp != NULL)
5894 *hp = NULL;
5895
5896 if (symp != NULL)
5897 *symp = sym;
5898
5899 if (symsecp != NULL)
5900 {
5901 asection *symsec = NULL;
5902 if ((sym->st_shndx != SHN_UNDEF
5903 && sym->st_shndx < SHN_LORESERVE)
5904 || sym->st_shndx > SHN_HIRESERVE)
5905 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
5906 *symsecp = symsec;
5907 }
5908
e7b938ca 5909 if (tls_maskp != NULL)
411e1bfb
AM		 5910 {
5911 struct got_entry **lgot_ents;
e7b938ca 5912 char *tls_mask;
411e1bfb 5913
e7b938ca 5914 tls_mask = NULL;
411e1bfb
AM		 5915 lgot_ents = elf_local_got_ents (ibfd);
5916 if (lgot_ents != NULL)
5917 {
e7b938ca
AM		 5918 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
5919 tls_mask = &lgot_masks[r_symndx];
411e1bfb 5920 }
e7b938ca 5921 *tls_maskp = tls_mask;
411e1bfb
AM		 5922 }
5923 }
5924 return TRUE;
5925}
5926
e7b938ca 5927/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 5928 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 5929 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 5930
5931static int
0d4792f7
AM		 5932get_tls_mask (char **tls_maskp, unsigned long *toc_symndx,
5933 Elf_Internal_Sym **locsymsp,
4ce794b7 5934 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 5935{
5936 unsigned long r_symndx;
0d4792f7 5937 int next_r;
411e1bfb
AM		 5938 struct elf_link_hash_entry *h;
5939 Elf_Internal_Sym *sym;
5940 asection *sec;
5941 bfd_vma off;
5942
5943 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5944 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 5945 return 0;
411e1bfb 5946
e7b938ca 5947 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM		 5948 || sec == NULL
5949 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 5950 return 1;
411e1bfb
AM		 5951
5952 /* Look inside a TOC section too. */
5953 if (h != NULL)
5954 {
5955 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5956 off = h->root.u.def.value;
5957 }
5958 else
5959 off = sym->st_value;
5960 off += rel->r_addend;
5961 BFD_ASSERT (off % 8 == 0);
5962 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 5963 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 5964 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 5965 return 0;
0d4792f7
AM		 5966 if (toc_symndx != NULL)
5967 *toc_symndx = r_symndx;
5968 if ((h == NULL
5969 || ((h->root.type == bfd_link_hash_defined
5970 || h->root.type == bfd_link_hash_defweak)
f5385ebf 5971 && !h->def_dynamic))
0d4792f7
AM		 5972 && (next_r == -1 || next_r == -2))
5973 return 1 - next_r;
951fd09b 5974 return 1;
411e1bfb
AM		 5975}
5976
754021d0 5977/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 5978 code for the old ABI, these will already have been done. */
754021d0
AM		 5979
5980static bfd_boolean
5981adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
5982{
5983 struct ppc_link_hash_entry *eh;
5984 asection *sym_sec;
5985 long *opd_adjust;
5986
5987 if (h->root.type == bfd_link_hash_indirect)
5988 return TRUE;
5989
5990 if (h->root.type == bfd_link_hash_warning)
5991 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5992
5993 if (h->root.type != bfd_link_hash_defined
5994 && h->root.type != bfd_link_hash_defweak)
5995 return TRUE;
5996
5997 eh = (struct ppc_link_hash_entry *) h;
5998 if (eh->adjust_done)
5999 return TRUE;
6000
6001 sym_sec = eh->elf.root.u.def.section;
4025353c
AM		 6002 opd_adjust = get_opd_info (sym_sec);
6003 if (opd_adjust != NULL)
754021d0 6004 {
3f764659 6005 long adjust = opd_adjust[eh->elf.root.u.def.value / 8];
4025353c
AM		 6006 if (adjust == -1)
6007 {
6008 /* This entry has been deleted. */
433817dd 6009 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->u.deleted_section;
81688140
AM		 6010 if (dsec == NULL)
6011 {
6012 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
6013 if (elf_discarded_section (dsec))
6014 {
433817dd 6015 ppc64_elf_tdata (sym_sec->owner)->u.deleted_section = dsec;
81688140
AM		 6016 break;
6017 }
6018 }
4025353c 6019 eh->elf.root.u.def.value = 0;
81688140 6020 eh->elf.root.u.def.section = dsec;
4025353c
AM		 6021 }
6022 else
6023 eh->elf.root.u.def.value += adjust;
754021d0
AM		 6024 eh->adjust_done = 1;
6025 }
6026 return TRUE;
6027}
6028
8c1d1bb8
AM		 6029/* Handles decrementing dynamic reloc counts for the reloc specified by
6030 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC
6031 have already been determined. */
6032
6033static bfd_boolean
6034dec_dynrel_count (bfd_vma r_info,
6035 asection *sec,
6036 struct bfd_link_info *info,
6037 Elf_Internal_Sym **local_syms,
6038 struct elf_link_hash_entry *h,
6039 asection *sym_sec)
6040{
6041 enum elf_ppc64_reloc_type r_type;
6042 struct ppc_dyn_relocs *p;
6043 struct ppc_dyn_relocs **pp;
6044
6045 /* Can this reloc be dynamic? This switch, and later tests here
6046 should be kept in sync with the code in check_relocs. */
6047 r_type = ELF64_R_TYPE (r_info);
6048 switch (r_type)
6049 {
6050 default:
6051 return TRUE;
6052
6053 case R_PPC64_TPREL16:
6054 case R_PPC64_TPREL16_LO:
6055 case R_PPC64_TPREL16_HI:
6056 case R_PPC64_TPREL16_HA:
6057 case R_PPC64_TPREL16_DS:
6058 case R_PPC64_TPREL16_LO_DS:
6059 case R_PPC64_TPREL16_HIGHER:
6060 case R_PPC64_TPREL16_HIGHERA:
6061 case R_PPC64_TPREL16_HIGHEST:
6062 case R_PPC64_TPREL16_HIGHESTA:
6063 if (!info->shared)
6064 return TRUE;
6065
6066 case R_PPC64_TPREL64:
6067 case R_PPC64_DTPMOD64:
6068 case R_PPC64_DTPREL64:
6069 case R_PPC64_ADDR64:
6070 case R_PPC64_REL30:
6071 case R_PPC64_REL32:
6072 case R_PPC64_REL64:
6073 case R_PPC64_ADDR14:
6074 case R_PPC64_ADDR14_BRNTAKEN:
6075 case R_PPC64_ADDR14_BRTAKEN:
6076 case R_PPC64_ADDR16:
6077 case R_PPC64_ADDR16_DS:
6078 case R_PPC64_ADDR16_HA:
6079 case R_PPC64_ADDR16_HI:
6080 case R_PPC64_ADDR16_HIGHER:
6081 case R_PPC64_ADDR16_HIGHERA:
6082 case R_PPC64_ADDR16_HIGHEST:
6083 case R_PPC64_ADDR16_HIGHESTA:
6084 case R_PPC64_ADDR16_LO:
6085 case R_PPC64_ADDR16_LO_DS:
6086 case R_PPC64_ADDR24:
6087 case R_PPC64_ADDR32:
6088 case R_PPC64_UADDR16:
6089 case R_PPC64_UADDR32:
6090 case R_PPC64_UADDR64:
6091 case R_PPC64_TOC:
6092 break;
6093 }
6094
6095 if (local_syms != NULL)
6096 {
6097 unsigned long r_symndx;
6098 Elf_Internal_Sym *sym;
6099 bfd *ibfd = sec->owner;
6100
6101 r_symndx = ELF64_R_SYM (r_info);
6102 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
6103 return FALSE;
6104 }
6105
6106 if ((info->shared
6107 && (MUST_BE_DYN_RELOC (r_type)
6108 || (h != NULL
6109 && (!info->symbolic
6110 || h->root.type == bfd_link_hash_defweak
6111 || !h->def_regular))))
6112 || (ELIMINATE_COPY_RELOCS
6113 && !info->shared
6114 && h != NULL
6115 && (h->root.type == bfd_link_hash_defweak
6116 || !h->def_regular)))
6117 ;
6118 else
6119 return TRUE;
6120
6121 if (h != NULL)
6122 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
6123 else if (sym_sec != NULL)
6edfbbad
DJ		 6124 {
6125 void *vpp = &elf_section_data (sym_sec)->local_dynrel;
6126 pp = (struct ppc_dyn_relocs **) vpp;
6127 }
8c1d1bb8 6128 else
6edfbbad
DJ		 6129 {
6130 void *vpp = &elf_section_data (sec)->local_dynrel;
6131 pp = (struct ppc_dyn_relocs **) vpp;
6132 }
8c1d1bb8
AM		 6133
6134 while ((p = *pp) != NULL)
6135 {
6136 if (p->sec == sec)
6137 {
6138 if (!MUST_BE_DYN_RELOC (r_type))
6139 p->pc_count -= 1;
6140 p->count -= 1;
6141 if (p->count == 0)
6142 *pp = p->next;
6143 return TRUE;
6144 }
6145 pp = &p->next;
6146 }
6147
6148 (*_bfd_error_handler) (_("dynreloc miscount for %B, section %A"),
6149 sec->owner, sec);
6150 bfd_set_error (bfd_error_bad_value);
6151 return FALSE;
6152}
6153
754021d0
AM		 6154/* Remove unused Official Procedure Descriptor entries. Currently we
6155 only remove those associated with functions in discarded link-once
6156 sections, or weakly defined functions that have been overridden. It
6157 would be possible to remove many more entries for statically linked
6158 applications. */
6159
b34976b6 6160bfd_boolean
3f764659 6161ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info,
b4f4e59f 6162 bfd_boolean no_opd_opt,
3f764659 6163 bfd_boolean non_overlapping)
1e2f5b6e
AM		 6164{
6165 bfd *ibfd;
754021d0 6166 bfd_boolean some_edited = FALSE;
3f764659 6167 asection *need_pad = NULL;
1e2f5b6e 6168
411e1bfb 6169 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 6170 {
6171 asection *sec;
6172 Elf_Internal_Rela *relstart, *rel, *relend;
6173 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 6174 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 6175 struct elf_link_hash_entry **sym_hashes;
6176 bfd_vma offset;
d6fe2dc1 6177 bfd_size_type amt;
4025353c 6178 long *opd_adjust;
3f764659
JJ		 6179 bfd_boolean need_edit, add_aux_fields;
6180 bfd_size_type cnt_16b = 0;
1e2f5b6e
AM		 6181
6182 sec = bfd_get_section_by_name (ibfd, ".opd");
46de2a7c 6183 if (sec == NULL || sec->size == 0)
1e2f5b6e
AM		 6184 continue;
6185
3f764659 6186 amt = sec->size * sizeof (long) / 8;
4025353c
AM		 6187 opd_adjust = get_opd_info (sec);
6188 if (opd_adjust == NULL)
d6fe2dc1 6189 {
4b85d634
AM		 6190 /* check_relocs hasn't been called. Must be a ld -r link
6191 or --just-symbols object. */
b4f4e59f 6192 opd_adjust = bfd_alloc (obfd, amt);
46de2a7c
AM		 6193 if (opd_adjust == NULL)
6194 return FALSE;
4025353c 6195 ppc64_elf_section_data (sec)->opd.adjust = opd_adjust;
d6fe2dc1 6196 }
4025353c 6197 memset (opd_adjust, 0, amt);
1e2f5b6e 6198
b4f4e59f
AM		 6199 if (no_opd_opt)
6200 continue;
6201
4b85d634
AM		 6202 if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS)
6203 continue;
6204
1e2f5b6e
AM		 6205 if (sec->output_section == bfd_abs_section_ptr)
6206 continue;
6207
6208 /* Look through the section relocs. */
6209 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
6210 continue;
6211
6cdc0ccc 6212 local_syms = NULL;
1e2f5b6e
AM		 6213 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6214 sym_hashes = elf_sym_hashes (ibfd);
6215
6216 /* Read the relocations. */
4ce794b7 6217 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6218 info->keep_memory);
1e2f5b6e 6219 if (relstart == NULL)
b34976b6 6220 return FALSE;
1e2f5b6e
AM		 6221
6222 /* First run through the relocs to check they are sane, and to
6223 determine whether we need to edit this opd section. */
b34976b6 6224 need_edit = FALSE;
3f764659 6225 need_pad = sec;
1e2f5b6e
AM		 6226 offset = 0;
6227 relend = relstart + sec->reloc_count;
50bc7936 6228 for (rel = relstart; rel < relend; )
1e2f5b6e 6229 {
04c9666a 6230 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 6231 unsigned long r_symndx;
6232 asection *sym_sec;
6233 struct elf_link_hash_entry *h;
6234 Elf_Internal_Sym *sym;
6235
3f764659 6236 /* .opd contains a regular array of 16 or 24 byte entries. We're
1e2f5b6e
AM		 6237 only interested in the reloc pointing to a function entry
6238 point. */
50bc7936
AM		 6239 if (rel->r_offset != offset
6240 || rel + 1 >= relend
6241 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM		 6242 {
6243 /* If someone messes with .opd alignment then after a
6244 "ld -r" we might have padding in the middle of .opd.
6245 Also, there's nothing to prevent someone putting
6246 something silly in .opd with the assembler. No .opd
b34976b6 6247 optimization for them! */
3f764659 6248 broken_opd:
1e2f5b6e 6249 (*_bfd_error_handler)
d003868e 6250 (_("%B: .opd is not a regular array of opd entries"), ibfd);
b34976b6 6251 need_edit = FALSE;
1e2f5b6e
AM		 6252 break;
6253 }
6254
50bc7936
AM		 6255 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
6256 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
6257 {
6258 (*_bfd_error_handler)
d003868e
AM		 6259 (_("%B: unexpected reloc type %u in .opd section"),
6260 ibfd, r_type);
50bc7936
AM		 6261 need_edit = FALSE;
6262 break;
6263 }
6264
1e2f5b6e 6265 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 6266 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6267 r_symndx, ibfd))
50bc7936 6268 goto error_ret;
1e2f5b6e
AM		 6269
6270 if (sym_sec == NULL || sym_sec->owner == NULL)
6271 {
411e1bfb
AM		 6272 const char *sym_name;
6273 if (h != NULL)
6274 sym_name = h->root.root.string;
6275 else
26c61ae5
L		 6276 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
6277 sym_sec);
411e1bfb 6278
1e2f5b6e 6279 (*_bfd_error_handler)
d003868e
AM		 6280 (_("%B: undefined sym `%s' in .opd section"),
6281 ibfd, sym_name);
b34976b6 6282 need_edit = FALSE;
1e2f5b6e
AM		 6283 break;
6284 }
6285
51020317
AM		 6286 /* opd entries are always for functions defined in the
6287 current input bfd. If the symbol isn't defined in the
6288 input bfd, then we won't be using the function in this
6289 bfd; It must be defined in a linkonce section in another
6290 bfd, or is weak. It's also possible that we are
6291 discarding the function due to a linker script /DISCARD/,
6292 which we test for via the output_section. */
6293 if (sym_sec->owner != ibfd
6294 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 6295 need_edit = TRUE;
1e2f5b6e 6296
50bc7936 6297 rel += 2;
3f764659
JJ		 6298 if (rel == relend
6299 || (rel + 1 == relend && rel->r_offset == offset + 16))
6300 {
6301 if (sec->size == offset + 24)
6302 {
6303 need_pad = NULL;
6304 break;
6305 }
6306 if (rel == relend && sec->size == offset + 16)
6307 {
6308 cnt_16b++;
6309 break;
6310 }
6311 goto broken_opd;
6312 }
6313
6314 if (rel->r_offset == offset + 24)
6315 offset += 24;
6316 else if (rel->r_offset != offset + 16)
6317 goto broken_opd;
6318 else if (rel + 1 < relend
6319 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
6320 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
6321 {
6322 offset += 16;
6323 cnt_16b++;
6324 }
6325 else if (rel + 2 < relend
6326 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
6327 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
6328 {
6329 offset += 24;
6330 rel += 1;
6331 }
6332 else
6333 goto broken_opd;
1e2f5b6e
AM		 6334 }
6335
3f764659
JJ		 6336 add_aux_fields = non_overlapping && cnt_16b > 0;
6337
6338 if (need_edit || add_aux_fields)
1e2f5b6e
AM		 6339 {
6340 Elf_Internal_Rela *write_rel;
6341 bfd_byte *rptr, *wptr;
3f764659 6342 bfd_byte *new_contents = NULL;
b34976b6 6343 bfd_boolean skip;
3f764659 6344 long opd_ent_size;
1e2f5b6e
AM		 6345
6346 /* This seems a waste of time as input .opd sections are all
6347 zeros as generated by gcc, but I suppose there's no reason
6348 this will always be so. We might start putting something in
6349 the third word of .opd entries. */
6350 if ((sec->flags & SEC_IN_MEMORY) == 0)
6351 {
eea6121a
AM		 6352 bfd_byte *loc;
6353 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 6354 {
eea6121a
AM		 6355 if (loc != NULL)
6356 free (loc);
50bc7936 6357 error_ret:
6cdc0ccc
AM		 6358 if (local_syms != NULL
6359 && symtab_hdr->contents != (unsigned char *) local_syms)
6360 free (local_syms);
6cdc0ccc
AM		 6361 if (elf_section_data (sec)->relocs != relstart)
6362 free (relstart);
b34976b6 6363 return FALSE;
6cdc0ccc 6364 }
1e2f5b6e
AM		 6365 sec->contents = loc;
6366 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6367 }
6368
6369 elf_section_data (sec)->relocs = relstart;
6370
3f764659 6371 new_contents = sec->contents;
3f764659
JJ		 6372 if (add_aux_fields)
6373 {
6374 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
6375 if (new_contents == NULL)
6376 return FALSE;
6377 need_pad = FALSE;
3f764659 6378 }
b4f4e59f
AM		 6379 wptr = new_contents;
6380 rptr = sec->contents;
3f764659 6381
1e2f5b6e 6382 write_rel = relstart;
b34976b6 6383 skip = FALSE;
1e2f5b6e 6384 offset = 0;
3f764659 6385 opd_ent_size = 0;
1e2f5b6e
AM		 6386 for (rel = relstart; rel < relend; rel++)
6387 {
50bc7936
AM		 6388 unsigned long r_symndx;
6389 asection *sym_sec;
6390 struct elf_link_hash_entry *h;
6391 Elf_Internal_Sym *sym;
6392
6393 r_symndx = ELF64_R_SYM (rel->r_info);
6394 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 6395 r_symndx, ibfd))
50bc7936
AM		 6396 goto error_ret;
6397
1e2f5b6e
AM		 6398 if (rel->r_offset == offset)
6399 {
50bc7936 6400 struct ppc_link_hash_entry *fdh = NULL;
3f764659
JJ		 6401
6402 /* See if the .opd entry is full 24 byte or
6403 16 byte (with fd_aux entry overlapped with next
6404 fd_func). */
6405 opd_ent_size = 24;
6406 if ((rel + 2 == relend && sec->size == offset + 16)
6407 || (rel + 3 < relend
6408 && rel[2].r_offset == offset + 16
6409 && rel[3].r_offset == offset + 24
6410 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
6411 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
6412 opd_ent_size = 16;
6413
4025353c
AM		 6414 if (h != NULL
6415 && h->root.root.string[0] == '.')
c4f68ce3
AM		 6416 {
6417 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
6418 ppc_hash_table (info));
6419 if (fdh != NULL
6420 && fdh->elf.root.type != bfd_link_hash_defined
6421 && fdh->elf.root.type != bfd_link_hash_defweak)
6422 fdh = NULL;
6423 }
1e2f5b6e 6424
51020317
AM		 6425 skip = (sym_sec->owner != ibfd
6426 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 6427 if (skip)
6428 {
4025353c 6429 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 6430 {
6431 /* Arrange for the function descriptor sym
6432 to be dropped. */
d6fe2dc1
AM		 6433 fdh->elf.root.u.def.value = 0;
6434 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 6435 }
3f764659 6436 opd_adjust[rel->r_offset / 8] = -1;
a4aa0fb7
AM		 6437 }
6438 else
1e2f5b6e
AM		 6439 {
6440 /* We'll be keeping this opd entry. */
6441
4025353c 6442 if (fdh != NULL)
1e2f5b6e 6443 {
754021d0
AM		 6444 /* Redefine the function descriptor symbol to
6445 this location in the opd section. It is
6446 necessary to update the value here rather
6447 than using an array of adjustments as we do
6448 for local symbols, because various places
6449 in the generic ELF code use the value
6450 stored in u.def.value. */
3f764659 6451 fdh->elf.root.u.def.value = wptr - new_contents;
754021d0 6452 fdh->adjust_done = 1;
1e2f5b6e 6453 }
754021d0
AM		 6454
6455 /* Local syms are a bit tricky. We could
6456 tweak them as they can be cached, but
6457 we'd need to look through the local syms
6458 for the function descriptor sym which we
6459 don't have at the moment. So keep an
6460 array of adjustments. */
3f764659
JJ		 6461 opd_adjust[rel->r_offset / 8]
6462 = (wptr - new_contents) - (rptr - sec->contents);
1e2f5b6e
AM		 6463
6464 if (wptr != rptr)
3f764659
JJ		 6465 memcpy (wptr, rptr, opd_ent_size);
6466 wptr += opd_ent_size;
6467 if (add_aux_fields && opd_ent_size == 16)
6468 {
6469 memset (wptr, '\0', 8);
6470 wptr += 8;
6471 }
1e2f5b6e 6472 }
3f764659
JJ		 6473 rptr += opd_ent_size;
6474 offset += opd_ent_size;
1e2f5b6e
AM		 6475 }
6476
50bc7936
AM		 6477 if (skip)
6478 {
18d944df
AM		 6479 if (!info->relocatable
6480 && !dec_dynrel_count (rel->r_info, sec, info,
6481 NULL, h, sym_sec))
8c1d1bb8 6482 goto error_ret;
50bc7936
AM		 6483 }
6484 else
1e2f5b6e 6485 {
50bc7936
AM		 6486 /* We need to adjust any reloc offsets to point to the
6487 new opd entries. While we're at it, we may as well
6488 remove redundant relocs. */
3f764659 6489 rel->r_offset += opd_adjust[(offset - opd_ent_size) / 8];
1e2f5b6e
AM		 6490 if (write_rel != rel)
6491 memcpy (write_rel, rel, sizeof (*rel));
6492 ++write_rel;
6493 }
6494 }
6495
3f764659 6496 sec->size = wptr - new_contents;
1e2f5b6e 6497 sec->reloc_count = write_rel - relstart;
3f764659
JJ		 6498 if (add_aux_fields)
6499 {
6500 free (sec->contents);
6501 sec->contents = new_contents;
6502 }
6503
cdcf6e38
AM		 6504 /* Fudge the size too, as this is used later in
6505 elf_bfd_final_link if we are emitting relocs. */
6506 elf_section_data (sec)->rel_hdr.sh_size
6507 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
6508 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
754021d0 6509 some_edited = TRUE;
1e2f5b6e 6510 }
6cdc0ccc 6511 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 6512 free (relstart);
6cdc0ccc 6513
411e1bfb
AM		 6514 if (local_syms != NULL
6515 && symtab_hdr->contents != (unsigned char *) local_syms)
6516 {
6517 if (!info->keep_memory)
6518 free (local_syms);
6519 else
6520 symtab_hdr->contents = (unsigned char *) local_syms;
6521 }
6522 }
6523
754021d0
AM		 6524 if (some_edited)
6525 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
6526
3f764659
JJ		 6527 /* If we are doing a final link and the last .opd entry is just 16 byte
6528 long, add a 8 byte padding after it. */
6529 if (need_pad != NULL && !info->relocatable)
6530 {
6531 bfd_byte *p;
6532
6533 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
6534 {
6535 BFD_ASSERT (need_pad->size > 0);
6536
6537 p = bfd_malloc (need_pad->size + 8);
6538 if (p == NULL)
6539 return FALSE;
699733f6 6540
3f764659
JJ		 6541 if (! bfd_get_section_contents (need_pad->owner, need_pad,
6542 p, 0, need_pad->size))
6543 return FALSE;
6544
6545 need_pad->contents = p;
6546 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6547 }
6548 else
6549 {
6550 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
6551 if (p == NULL)
6552 return FALSE;
6553
6554 need_pad->contents = p;
6555 }
6556
6557 memset (need_pad->contents + need_pad->size, 0, 8);
6558 need_pad->size += 8;
6559 }
6560
411e1bfb
AM		 6561 return TRUE;
6562}
6563
e1918d23 6564/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 6565
e1918d23 6566asection *
4ce794b7 6567ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb 6568{
411e1bfb
AM		 6569 struct ppc_link_hash_table *htab;
6570
411e1bfb 6571 htab = ppc_hash_table (info);
a48ebf4d
AM		 6572 if (htab->tls_get_addr != NULL)
6573 {
8387904d 6574 struct ppc_link_hash_entry *h = htab->tls_get_addr;
a48ebf4d 6575
8387904d
AM		 6576 while (h->elf.root.type == bfd_link_hash_indirect
6577 || h->elf.root.type == bfd_link_hash_warning)
6578 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
a48ebf4d
AM		 6579
6580 htab->tls_get_addr = h;
8387904d
AM		 6581
6582 if (htab->tls_get_addr_fd == NULL
6583 && h->oh != NULL
c4f68ce3
AM		 6584 && h->oh->is_func_descriptor
6585 && (h->oh->elf.root.type == bfd_link_hash_defined
6586 || h->oh->elf.root.type == bfd_link_hash_defweak))
8387904d
AM		 6587 htab->tls_get_addr_fd = h->oh;
6588 }
6589
6590 if (htab->tls_get_addr_fd != NULL)
6591 {
6592 struct ppc_link_hash_entry *h = htab->tls_get_addr_fd;
6593
6594 while (h->elf.root.type == bfd_link_hash_indirect
6595 || h->elf.root.type == bfd_link_hash_warning)
6596 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6597
6598 htab->tls_get_addr_fd = h;
a48ebf4d
AM		 6599 }
6600
e1918d23 6601 return _bfd_elf_tls_setup (obfd, info);
951fd09b 6602}
411e1bfb 6603
951fd09b
AM		 6604/* Run through all the TLS relocs looking for optimization
6605 opportunities. The linker has been hacked (see ppc64elf.em) to do
6606 a preliminary section layout so that we know the TLS segment
6607 offsets. We can't optimize earlier because some optimizations need
6608 to know the tp offset, and we need to optimize before allocating
6609 dynamic relocations. */
6610
6611bfd_boolean
4ce794b7 6612ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 6613{
6614 bfd *ibfd;
6615 asection *sec;
6616 struct ppc_link_hash_table *htab;
6617
1049f94e 6618 if (info->relocatable || info->shared)
411e1bfb
AM		 6619 return TRUE;
6620
951fd09b 6621 htab = ppc_hash_table (info);
411e1bfb
AM		 6622 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6623 {
6624 Elf_Internal_Sym *locsyms = NULL;
6625
6626 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6627 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
6628 {
6629 Elf_Internal_Rela *relstart, *rel, *relend;
6630 int expecting_tls_get_addr;
6631
6632 /* Read the relocations. */
4ce794b7 6633 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6634 info->keep_memory);
411e1bfb
AM		 6635 if (relstart == NULL)
6636 return FALSE;
6637
6638 expecting_tls_get_addr = 0;
6639 relend = relstart + sec->reloc_count;
6640 for (rel = relstart; rel < relend; rel++)
6641 {
6642 enum elf_ppc64_reloc_type r_type;
6643 unsigned long r_symndx;
6644 struct elf_link_hash_entry *h;
6645 Elf_Internal_Sym *sym;
6646 asection *sym_sec;
e7b938ca
AM		 6647 char *tls_mask;
6648 char tls_set, tls_clear, tls_type = 0;
411e1bfb 6649 bfd_vma value;
951fd09b 6650 bfd_boolean ok_tprel, is_local;
411e1bfb
AM		 6651
6652 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 6653 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM		 6654 r_symndx, ibfd))
6655 {
6656 err_free_rel:
6657 if (elf_section_data (sec)->relocs != relstart)
6658 free (relstart);
6659 if (locsyms != NULL
6660 && (elf_tdata (ibfd)->symtab_hdr.contents
6661 != (unsigned char *) locsyms))
6662 free (locsyms);
6663 return FALSE;
6664 }
6665
6666 if (h != NULL)
6667 {
6668 if (h->root.type != bfd_link_hash_defined
6669 && h->root.type != bfd_link_hash_defweak)
6670 continue;
6671 value = h->root.u.def.value;
6672 }
6673 else
4025353c
AM		 6674 /* Symbols referenced by TLS relocs must be of type
6675 STT_TLS. So no need for .opd local sym adjust. */
6676 value = sym->st_value;
951fd09b 6677
411e1bfb 6678 ok_tprel = FALSE;
951fd09b
AM		 6679 is_local = FALSE;
6680 if (h == NULL
f5385ebf 6681 || !h->def_dynamic)
411e1bfb 6682 {
951fd09b 6683 is_local = TRUE;
411e1bfb
AM		 6684 value += sym_sec->output_offset;
6685 value += sym_sec->output_section->vma;
e1918d23 6686 value -= htab->elf.tls_sec->vma;
411e1bfb
AM		 6687 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
6688 < (bfd_vma) 1 << 32);
6689 }
6690
4ce794b7 6691 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM		 6692 switch (r_type)
6693 {
6694 case R_PPC64_GOT_TLSLD16:
6695 case R_PPC64_GOT_TLSLD16_LO:
6696 case R_PPC64_GOT_TLSLD16_HI:
6697 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM		 6698 /* These relocs should never be against a symbol
6699 defined in a shared lib. Leave them alone if
6700 that turns out to be the case. */
e717da7e 6701 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM		 6702 if (!is_local)
6703 continue;
6704
951fd09b
AM		 6705 /* LD -> LE */
6706 tls_set = 0;
6707 tls_clear = TLS_LD;
e7b938ca 6708 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 6709 expecting_tls_get_addr = 1;
6710 break;
6711
6712 case R_PPC64_GOT_TLSGD16:
6713 case R_PPC64_GOT_TLSGD16_LO:
6714 case R_PPC64_GOT_TLSGD16_HI:
6715 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 6716 if (ok_tprel)
411e1bfb
AM		 6717 /* GD -> LE */
6718 tls_set = 0;
6719 else
6720 /* GD -> IE */
951fd09b
AM		 6721 tls_set = TLS_TLS | TLS_TPRELGD;
6722 tls_clear = TLS_GD;
e7b938ca 6723 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 6724 expecting_tls_get_addr = 1;
6725 break;
6726
6727 case R_PPC64_GOT_TPREL16_DS:
6728 case R_PPC64_GOT_TPREL16_LO_DS:
6729 case R_PPC64_GOT_TPREL16_HI:
6730 case R_PPC64_GOT_TPREL16_HA:
6731 expecting_tls_get_addr = 0;
6732 if (ok_tprel)
6733 {
6734 /* IE -> LE */
6735 tls_set = 0;
6736 tls_clear = TLS_TPREL;
e7b938ca 6737 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM		 6738 break;
6739 }
6740 else
6741 continue;
6742
6743 case R_PPC64_REL14:
6744 case R_PPC64_REL14_BRTAKEN:
6745 case R_PPC64_REL14_BRNTAKEN:
6746 case R_PPC64_REL24:
6747 if (h != NULL
8387904d
AM		 6748 && (h == &htab->tls_get_addr->elf
6749 || h == &htab->tls_get_addr_fd->elf))
411e1bfb
AM		 6750 {
6751 if (!expecting_tls_get_addr
6752 && rel != relstart
6753 && ((ELF64_R_TYPE (rel[-1].r_info)
6754 == R_PPC64_TOC16)
6755 || (ELF64_R_TYPE (rel[-1].r_info)
6756 == R_PPC64_TOC16_LO)))
6757 {
6758 /* Check for toc tls entries. */
6759 char *toc_tls;
951fd09b 6760 int retval;
411e1bfb 6761
0d4792f7 6762 retval = get_tls_mask (&toc_tls, NULL, &locsyms,
951fd09b
AM		 6763 rel - 1, ibfd);
6764 if (retval == 0)
411e1bfb
AM		 6765 goto err_free_rel;
6766 if (toc_tls != NULL)
951fd09b 6767 expecting_tls_get_addr = retval > 1;
411e1bfb
AM		 6768 }
6769
6770 if (expecting_tls_get_addr)
6771 {
6772 struct plt_entry *ent;
6773 for (ent = h->plt.plist; ent; ent = ent->next)
6774 if (ent->addend == 0)
6775 {
6776 if (ent->plt.refcount > 0)
6777 ent->plt.refcount -= 1;
6778 break;
6779 }
6780 }
6781 }
6782 expecting_tls_get_addr = 0;
6783 continue;
6784
6785 case R_PPC64_TPREL64:
6786 expecting_tls_get_addr = 0;
6787 if (ok_tprel)
6788 {
6789 /* IE -> LE */
6790 tls_set = TLS_EXPLICIT;
6791 tls_clear = TLS_TPREL;
6792 break;
6793 }
6794 else
6795 continue;
6796
6797 case R_PPC64_DTPMOD64:
6798 expecting_tls_get_addr = 0;
951fd09b
AM		 6799 if (rel + 1 < relend
6800 && (rel[1].r_info
6801 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
6802 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 6803 {
951fd09b 6804 if (ok_tprel)
411e1bfb 6805 /* GD -> LE */
951fd09b 6806 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM		 6807 else
6808 /* GD -> IE */
951fd09b
AM		 6809 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
6810 tls_clear = TLS_GD;
411e1bfb
AM		 6811 }
6812 else
6813 {
951fd09b
AM		 6814 if (!is_local)
6815 continue;
6816
6817 /* LD -> LE */
6818 tls_set = TLS_EXPLICIT;
6819 tls_clear = TLS_LD;
411e1bfb
AM		 6820 }
6821 break;
6822
6823 default:
6824 expecting_tls_get_addr = 0;
6825 continue;
6826 }
6827
6828 if ((tls_set & TLS_EXPLICIT) == 0)
6829 {
6830 struct got_entry *ent;
6831
6832 /* Adjust got entry for this reloc. */
6833 if (h != NULL)
6834 ent = h->got.glist;
6835 else
6836 ent = elf_local_got_ents (ibfd)[r_symndx];
6837
6838 for (; ent != NULL; ent = ent->next)
6839 if (ent->addend == rel->r_addend
e717da7e 6840 && ent->owner == ibfd
e7b938ca 6841 && ent->tls_type == tls_type)
411e1bfb
AM		 6842 break;
6843 if (ent == NULL)
6844 abort ();
6845
6846 if (tls_set == 0)
6847 {
6848 /* We managed to get rid of a got entry. */
6849 if (ent->got.refcount > 0)
6850 ent->got.refcount -= 1;
6851 }
411e1bfb 6852 }
8c1d1bb8 6853 else
411e1bfb 6854 {
8c1d1bb8
AM		 6855 /* If we got rid of a DTPMOD/DTPREL reloc pair then
6856 we'll lose one or two dyn relocs. */
6857 if (!dec_dynrel_count (rel->r_info, sec, info,
6858 NULL, h, sym_sec))
6859 return FALSE;
6860
6861 if (tls_set == (TLS_EXPLICIT | TLS_GD))
6862 {
6863 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
6864 NULL, h, sym_sec))
6865 return FALSE;
6866 }
411e1bfb
AM		 6867 }
6868
e7b938ca
AM		 6869 *tls_mask |= tls_set;
6870 *tls_mask &= ~tls_clear;
411e1bfb
AM		 6871 }
6872
6873 if (elf_section_data (sec)->relocs != relstart)
6874 free (relstart);
6875 }
6876
6877 if (locsyms != NULL
6878 && (elf_tdata (ibfd)->symtab_hdr.contents
6879 != (unsigned char *) locsyms))
6cdc0ccc
AM		 6880 {
6881 if (!info->keep_memory)
411e1bfb 6882 free (locsyms);
6cdc0ccc 6883 else
411e1bfb 6884 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 6885 }
1e2f5b6e 6886 }
b34976b6 6887 return TRUE;
1e2f5b6e 6888}
b34976b6 6889
c5614fa4
AM		 6890/* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
6891 the values of any global symbols in a toc section that has been
6892 edited. Globals in toc sections should be a rarity, so this function
6893 sets a flag if any are found in toc sections other than the one just
6894 edited, so that futher hash table traversals can be avoided. */
6895
6896struct adjust_toc_info
6897{
6898 asection *toc;
6899 unsigned long *skip;
6900 bfd_boolean global_toc_syms;
6901};
6902
6903static bfd_boolean
6904adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
6905{
6906 struct ppc_link_hash_entry *eh;
6907 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
6908
6909 if (h->root.type == bfd_link_hash_indirect)
6910 return TRUE;
6911
6912 if (h->root.type == bfd_link_hash_warning)
6913 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6914
6915 if (h->root.type != bfd_link_hash_defined
6916 && h->root.type != bfd_link_hash_defweak)
6917 return TRUE;
6918
6919 eh = (struct ppc_link_hash_entry *) h;
6920 if (eh->adjust_done)
6921 return TRUE;
6922
6923 if (eh->elf.root.u.def.section == toc_inf->toc)
6924 {
6925 unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3];
6926 if (skip != (unsigned long) -1)
6927 eh->elf.root.u.def.value -= skip;
6928 else
6929 {
6930 (*_bfd_error_handler)
6931 (_("%s defined in removed toc entry"), eh->elf.root.root.string);
6932 eh->elf.root.u.def.section = &bfd_abs_section;
6933 eh->elf.root.u.def.value = 0;
6934 }
6935 eh->adjust_done = 1;
6936 }
6937 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
6938 toc_inf->global_toc_syms = TRUE;
6939
6940 return TRUE;
6941}
6942
6943/* Examine all relocs referencing .toc sections in order to remove
6944 unused .toc entries. */
6945
6946bfd_boolean
6947ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
6948{
6949 bfd *ibfd;
6950 struct adjust_toc_info toc_inf;
6951
6952 toc_inf.global_toc_syms = TRUE;
6953 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6954 {
6955 asection *toc, *sec;
6956 Elf_Internal_Shdr *symtab_hdr;
6957 Elf_Internal_Sym *local_syms;
6958 struct elf_link_hash_entry **sym_hashes;
92b7a70f 6959 Elf_Internal_Rela *relstart, *rel;
c5614fa4
AM		 6960 unsigned long *skip, *drop;
6961 unsigned char *used;
6962 unsigned char *keep, last, some_unused;
6963
6964 toc = bfd_get_section_by_name (ibfd, ".toc");
6965 if (toc == NULL
92b7a70f 6966 || toc->size == 0
c5614fa4
AM		 6967 || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS
6968 || elf_discarded_section (toc))
6969 continue;
6970
6971 local_syms = NULL;
6972 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6973 sym_hashes = elf_sym_hashes (ibfd);
6974
6975 /* Look at sections dropped from the final link. */
6976 skip = NULL;
6977 relstart = NULL;
6978 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6979 {
6980 if (sec->reloc_count == 0
6981 || !elf_discarded_section (sec)
6982 || get_opd_info (sec)
6983 || (sec->flags & SEC_ALLOC) == 0
6984 || (sec->flags & SEC_DEBUGGING) != 0)
6985 continue;
6986
6987 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
6988 if (relstart == NULL)
6989 goto error_ret;
6990
6991 /* Run through the relocs to see which toc entries might be
6992 unused. */
6993 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
6994 {
6995 enum elf_ppc64_reloc_type r_type;
6996 unsigned long r_symndx;
6997 asection *sym_sec;
6998 struct elf_link_hash_entry *h;
6999 Elf_Internal_Sym *sym;
7000 bfd_vma val;
7001
7002 r_type = ELF64_R_TYPE (rel->r_info);
7003 switch (r_type)
7004 {
7005 default:
7006 continue;
7007
7008 case R_PPC64_TOC16:
7009 case R_PPC64_TOC16_LO:
7010 case R_PPC64_TOC16_HI:
7011 case R_PPC64_TOC16_HA:
7012 case R_PPC64_TOC16_DS:
7013 case R_PPC64_TOC16_LO_DS:
7014 break;
7015 }
7016
7017 r_symndx = ELF64_R_SYM (rel->r_info);
7018 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7019 r_symndx, ibfd))
7020 goto error_ret;
7021
7022 if (sym_sec != toc)
7023 continue;
7024
7025 if (h != NULL)
7026 val = h->root.u.def.value;
7027 else
7028 val = sym->st_value;
7029 val += rel->r_addend;
7030
7031 if (val >= toc->size)
7032 continue;
7033
7034 /* Anything in the toc ought to be aligned to 8 bytes.
7035 If not, don't mark as unused. */
7036 if (val & 7)
7037 continue;
7038
7039 if (skip == NULL)
7040 {
7041 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8);
7042 if (skip == NULL)
7043 goto error_ret;
7044 }
7045
7046 skip[val >> 3] = 1;
7047 }
7048
7049 if (elf_section_data (sec)->relocs != relstart)
7050 free (relstart);
7051 }
7052
7053 if (skip == NULL)
7054 continue;
7055
7056 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
7057 if (used == NULL)
7058 {
7059 error_ret:
7060 if (local_syms != NULL
7061 && symtab_hdr->contents != (unsigned char *) local_syms)
7062 free (local_syms);
7063 if (sec != NULL
7064 && relstart != NULL
7065 && elf_section_data (sec)->relocs != relstart)
7066 free (relstart);
7067 if (skip != NULL)
7068 free (skip);
7069 return FALSE;
7070 }
7071
7072 /* Now check all kept sections that might reference the toc. */
7073 for (sec = ibfd->sections;
7074 sec != NULL;
7075 /* Check the toc itself last. */
7076 sec = (sec == toc ? NULL
7077 : sec->next == toc && sec->next->next ? sec->next->next
7078 : sec->next == NULL ? toc
7079 : sec->next))
7080 {
7081 int repeat;
7082
7083 if (sec->reloc_count == 0
7084 || elf_discarded_section (sec)
7085 || get_opd_info (sec)
7086 || (sec->flags & SEC_ALLOC) == 0
7087 || (sec->flags & SEC_DEBUGGING) != 0)
7088 continue;
7089
7090 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE);
7091 if (relstart == NULL)
7092 goto error_ret;
7093
7094 /* Mark toc entries referenced as used. */
7095 repeat = 0;
7096 do
7097 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7098 {
7099 enum elf_ppc64_reloc_type r_type;
7100 unsigned long r_symndx;
7101 asection *sym_sec;
7102 struct elf_link_hash_entry *h;
7103 Elf_Internal_Sym *sym;
7104 bfd_vma val;
7105
7106 r_type = ELF64_R_TYPE (rel->r_info);
7107 switch (r_type)
7108 {
7109 case R_PPC64_TOC16:
7110 case R_PPC64_TOC16_LO:
7111 case R_PPC64_TOC16_HI:
7112 case R_PPC64_TOC16_HA:
7113 case R_PPC64_TOC16_DS:
7114 case R_PPC64_TOC16_LO_DS:
7115 /* In case we're taking addresses of toc entries. */
7116 case R_PPC64_ADDR64:
7117 break;
7118
7119 default:
7120 continue;
7121 }
7122
7123 r_symndx = ELF64_R_SYM (rel->r_info);
7124 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7125 r_symndx, ibfd))
7126 {
7127 free (used);
7128 goto error_ret;
7129 }
7130
7131 if (sym_sec != toc)
7132 continue;
7133
7134 if (h != NULL)
7135 val = h->root.u.def.value;
7136 else
7137 val = sym->st_value;
7138 val += rel->r_addend;
7139
7140 if (val >= toc->size)
7141 continue;
7142
7143 /* For the toc section, we only mark as used if
7144 this entry itself isn't unused. */
7145 if (sec == toc
7146 && !used[val >> 3]
7147 && (used[rel->r_offset >> 3]
7148 || !skip[rel->r_offset >> 3]))
7149 /* Do all the relocs again, to catch reference
7150 chains. */
7151 repeat = 1;
7152
7153 used[val >> 3] = 1;
7154 }
7155 while (repeat);
7156 }
7157
7158 /* Merge the used and skip arrays. Assume that TOC
7159 doublewords not appearing as either used or unused belong
7160 to to an entry more than one doubleword in size. */
7161 for (drop = skip, keep = used, last = 0, some_unused = 0;
7162 drop < skip + (toc->size + 7) / 8;
7163 ++drop, ++keep)
7164 {
7165 if (*keep)
7166 {
7167 *drop = 0;
7168 last = 0;
7169 }
7170 else if (*drop)
7171 {
7172 some_unused = 1;
7173 last = 1;
7174 }
7175 else
7176 *drop = last;
7177 }
7178
7179 free (used);
7180
7181 if (some_unused)
7182 {
7183 bfd_byte *contents, *src;
7184 unsigned long off;
7185
7186 /* Shuffle the toc contents, and at the same time convert the
7187 skip array from booleans into offsets. */
7188 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
7189 goto error_ret;
7190
7191 elf_section_data (toc)->this_hdr.contents = contents;
7192
7193 for (src = contents, off = 0, drop = skip;
7194 src < contents + toc->size;
7195 src += 8, ++drop)
7196 {
7197 if (*drop)
7198 {
7199 *drop = (unsigned long) -1;
7200 off += 8;
7201 }
7202 else if (off != 0)
7203 {
7204 *drop = off;
7205 memcpy (src - off, src, 8);
7206 }
7207 }
7208 toc->rawsize = toc->size;
7209 toc->size = src - contents - off;
7210
92b7a70f
AM		 7211 if (toc->reloc_count != 0)
7212 {
7213 Elf_Internal_Rela *wrel;
7214 bfd_size_type sz;
c5614fa4 7215
92b7a70f
AM		 7216 /* Read toc relocs. */
7217 relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
7218 TRUE);
7219 if (relstart == NULL)
7220 goto error_ret;
7221
7222 /* Remove unused toc relocs, and adjust those we keep. */
7223 wrel = relstart;
7224 for (rel = relstart; rel < relstart + toc->reloc_count; ++rel)
7225 if (skip[rel->r_offset >> 3] != (unsigned long) -1)
7226 {
7227 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
7228 wrel->r_info = rel->r_info;
7229 wrel->r_addend = rel->r_addend;
7230 ++wrel;
7231 }
8c1d1bb8
AM		 7232 else if (!dec_dynrel_count (rel->r_info, toc, info,
7233 &local_syms, NULL, NULL))
7234 goto error_ret;
35090471 7235
92b7a70f
AM		 7236 toc->reloc_count = wrel - relstart;
7237 sz = elf_section_data (toc)->rel_hdr.sh_entsize;
7238 elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz;
7239 BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL);
7240 }
c5614fa4
AM		 7241
7242 /* Adjust addends for relocs against the toc section sym. */
7243 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7244 {
7245 if (sec->reloc_count == 0
7246 || elf_discarded_section (sec))
7247 continue;
7248
7249 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7250 TRUE);
7251 if (relstart == NULL)
7252 goto error_ret;
7253
7254 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7255 {
7256 enum elf_ppc64_reloc_type r_type;
7257 unsigned long r_symndx;
7258 asection *sym_sec;
7259 struct elf_link_hash_entry *h;
7260 Elf_Internal_Sym *sym;
7261
7262 r_type = ELF64_R_TYPE (rel->r_info);
7263 switch (r_type)
7264 {
7265 default:
7266 continue;
7267
7268 case R_PPC64_TOC16:
7269 case R_PPC64_TOC16_LO:
7270 case R_PPC64_TOC16_HI:
7271 case R_PPC64_TOC16_HA:
7272 case R_PPC64_TOC16_DS:
7273 case R_PPC64_TOC16_LO_DS:
7274 case R_PPC64_ADDR64:
7275 break;
7276 }
7277
7278 r_symndx = ELF64_R_SYM (rel->r_info);
7279 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7280 r_symndx, ibfd))
7281 goto error_ret;
7282
7283 if (sym_sec != toc || h != NULL || sym->st_value != 0)
7284 continue;
7285
7286 rel->r_addend -= skip[rel->r_addend >> 3];
7287 }
7288 }
7289
7290 /* We shouldn't have local or global symbols defined in the TOC,
7291 but handle them anyway. */
7292 if (local_syms != NULL)
7293 {
7294 Elf_Internal_Sym *sym;
7295
7296 for (sym = local_syms;
7297 sym < local_syms + symtab_hdr->sh_info;
7298 ++sym)
7299 if (sym->st_shndx != SHN_UNDEF
7300 && (sym->st_shndx < SHN_LORESERVE
7301 || sym->st_shndx > SHN_HIRESERVE)
7302 && sym->st_value != 0
7303 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
7304 {
7305 if (skip[sym->st_value >> 3] != (unsigned long) -1)
7306 sym->st_value -= skip[sym->st_value >> 3];
7307 else
7308 {
7309 (*_bfd_error_handler)
7310 (_("%s defined in removed toc entry"),
26c61ae5
L		 7311 bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7312 NULL));
c5614fa4
AM		 7313 sym->st_value = 0;
7314 sym->st_shndx = SHN_ABS;
7315 }
7316 symtab_hdr->contents = (unsigned char *) local_syms;
7317 }
7318 }
7319
7320 /* Finally, adjust any global syms defined in the toc. */
7321 if (toc_inf.global_toc_syms)
7322 {
7323 toc_inf.toc = toc;
7324 toc_inf.skip = skip;
7325 toc_inf.global_toc_syms = FALSE;
7326 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
7327 &toc_inf);
7328 }
7329 }
7330
7331 if (local_syms != NULL
7332 && symtab_hdr->contents != (unsigned char *) local_syms)
7333 {
7334 if (!info->keep_memory)
7335 free (local_syms);
7336 else
7337 symtab_hdr->contents = (unsigned char *) local_syms;
7338 }
7339 free (skip);
7340 }
7341
7342 return TRUE;
7343}
7344
65f38f15
AM		 7345/* Allocate space in .plt, .got and associated reloc sections for
7346 dynamic relocs. */
5bd4f169 7347
b34976b6 7348static bfd_boolean
4ce794b7 7349allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 7350{
65f38f15
AM		 7351 struct bfd_link_info *info;
7352 struct ppc_link_hash_table *htab;
5bd4f169 7353 asection *s;
65f38f15
AM		 7354 struct ppc_link_hash_entry *eh;
7355 struct ppc_dyn_relocs *p;
411e1bfb 7356 struct got_entry *gent;
5bd4f169 7357
e92d460e 7358 if (h->root.type == bfd_link_hash_indirect)
b34976b6 7359 return TRUE;
5bd4f169 7360
e92d460e
AM		 7361 if (h->root.type == bfd_link_hash_warning)
7362 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7363
65f38f15
AM		 7364 info = (struct bfd_link_info *) inf;
7365 htab = ppc_hash_table (info);
5bd4f169 7366
65f38f15 7367 if (htab->elf.dynamic_sections_created
411e1bfb 7368 && h->dynindx != -1
9c7a29a3 7369 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 7370 {
411e1bfb
AM		 7371 struct plt_entry *pent;
7372 bfd_boolean doneone = FALSE;
7373 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
7374 if (pent->plt.refcount > 0)
7375 {
411e1bfb
AM		 7376 /* If this is the first .plt entry, make room for the special
7377 first entry. */
4ce794b7 7378 s = htab->plt;
eea6121a
AM		 7379 if (s->size == 0)
7380 s->size += PLT_INITIAL_ENTRY_SIZE;
411e1bfb 7381
eea6121a 7382 pent->plt.offset = s->size;
411e1bfb
AM		 7383
7384 /* Make room for this entry. */
eea6121a 7385 s->size += PLT_ENTRY_SIZE;
411e1bfb
AM		 7386
7387 /* Make room for the .glink code. */
4ce794b7 7388 s = htab->glink;
eea6121a
AM		 7389 if (s->size == 0)
7390 s->size += GLINK_CALL_STUB_SIZE;
411e1bfb 7391 /* We need bigger stubs past index 32767. */
eea6121a
AM		 7392 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
7393 s->size += 4;
7394 s->size += 2*4;
411e1bfb
AM		 7395
7396 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 7397 s = htab->relplt;
eea6121a 7398 s->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 7399 doneone = TRUE;
7400 }
7401 else
7402 pent->plt.offset = (bfd_vma) -1;
7403 if (!doneone)
65f38f15 7404 {
411e1bfb 7405 h->plt.plist = NULL;
f5385ebf 7406 h->needs_plt = 0;
65f38f15
AM		 7407 }
7408 }
7409 else
7410 {
411e1bfb 7411 h->plt.plist = NULL;
f5385ebf 7412 h->needs_plt = 0;
65f38f15
AM		 7413 }
7414
951fd09b
AM		 7415 eh = (struct ppc_link_hash_entry *) h;
7416 /* Run through the TLS GD got entries first if we're changing them
7417 to TPREL. */
e7b938ca 7418 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 7419 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7420 if (gent->got.refcount > 0
7421 && (gent->tls_type & TLS_GD) != 0)
7422 {
7423 /* This was a GD entry that has been converted to TPREL. If
7424 there happens to be a TPREL entry we can use that one. */
7425 struct got_entry *ent;
7426 for (ent = h->got.glist; ent != NULL; ent = ent->next)
7427 if (ent->got.refcount > 0
7428 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 7429 && ent->addend == gent->addend
7430 && ent->owner == gent->owner)
951fd09b
AM		 7431 {
7432 gent->got.refcount = 0;
7433 break;
7434 }
7435
7436 /* If not, then we'll be using our own TPREL entry. */
7437 if (gent->got.refcount != 0)
7438 gent->tls_type = TLS_TLS | TLS_TPREL;
7439 }
7440
411e1bfb
AM		 7441 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7442 if (gent->got.refcount > 0)
7443 {
951fd09b
AM		 7444 bfd_boolean dyn;
7445
411e1bfb 7446 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 7447 Undefined weak syms won't yet be marked as dynamic,
7448 nor will all TLS symbols. */
411e1bfb 7449 if (h->dynindx == -1
f5385ebf 7450 && !h->forced_local)
411e1bfb 7451 {
c152c796 7452 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM		 7453 return FALSE;
7454 }
65f38f15 7455
d881513a 7456 if ((gent->tls_type & TLS_LD) != 0
f5385ebf 7457 && !h->def_dynamic)
411e1bfb 7458 {
e717da7e 7459 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 7460 continue;
411e1bfb 7461 }
951fd09b 7462
e717da7e 7463 s = ppc64_elf_tdata (gent->owner)->got;
eea6121a
AM		 7464 gent->got.offset = s->size;
7465 s->size
d881513a 7466 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 7467 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 7468 if ((info->shared
7469 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
7470 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7471 || h->root.type != bfd_link_hash_undefweak))
eea6121a 7472 ppc64_elf_tdata (gent->owner)->relgot->size
e7b938ca 7473 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 7474 ? 2 * sizeof (Elf64_External_Rela)
7475 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 7476 }
7477 else
7478 gent->got.offset = (bfd_vma) -1;
65f38f15 7479
65f38f15 7480 if (eh->dyn_relocs == NULL)
b34976b6 7481 return TRUE;
65f38f15
AM		 7482
7483 /* In the shared -Bsymbolic case, discard space allocated for
7484 dynamic pc-relative relocs against symbols which turn out to be
7485 defined in regular objects. For the normal shared case, discard
7486 space for relocs that have become local due to symbol visibility
7487 changes. */
7488
7489 if (info->shared)
7490 {
9c7a29a3
AM		 7491 /* Relocs that use pc_count are those that appear on a call insn,
7492 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
7493 generated via assembly. We want calls to protected symbols to
7494 resolve directly to the function rather than going via the plt.
7495 If people want function pointer comparisons to work as expected
7496 then they should avoid writing weird assembly. */
09695f56 7497 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 7498 {
7499 struct ppc_dyn_relocs **pp;
7500
7501 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 7502 {
65f38f15
AM		 7503 p->count -= p->pc_count;
7504 p->pc_count = 0;
7505 if (p->count == 0)
7506 *pp = p->next;
7507 else
7508 pp = &p->next;
5bd4f169 7509 }
65f38f15 7510 }
4e795f50
AM		 7511
7512 /* Also discard relocs on undefined weak syms with non-default
7513 visibility. */
7514 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
7515 && h->root.type == bfd_link_hash_undefweak)
7516 eh->dyn_relocs = NULL;
65f38f15 7517 }
f4656909 7518 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 7519 {
7520 /* For the non-shared case, discard space for relocs against
7521 symbols which turn out to need copy relocs or are not
7522 dynamic. */
7523
f5385ebf
AM		 7524 if (!h->non_got_ref
7525 && h->def_dynamic
7526 && !h->def_regular)
65f38f15
AM		 7527 {
7528 /* Make sure this symbol is output as a dynamic symbol.
7529 Undefined weak syms won't yet be marked as dynamic. */
7530 if (h->dynindx == -1
f5385ebf 7531 && !h->forced_local)
65f38f15 7532 {
c152c796 7533 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 7534 return FALSE;
65f38f15
AM		 7535 }
7536
7537 /* If that succeeded, we know we'll be keeping all the
7538 relocs. */
7539 if (h->dynindx != -1)
7540 goto keep;
7541 }
7542
7543 eh->dyn_relocs = NULL;
7544
ec338859 7545 keep: ;
65f38f15
AM		 7546 }
7547
7548 /* Finally, allocate space. */
7549 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7550 {
7551 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 7552 sreloc->size += p->count * sizeof (Elf64_External_Rela);
65f38f15
AM		 7553 }
7554
b34976b6 7555 return TRUE;
65f38f15
AM		 7556}
7557
7558/* Find any dynamic relocs that apply to read-only sections. */
7559
b34976b6 7560static bfd_boolean
4ce794b7 7561readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 7562{
7563 struct ppc_link_hash_entry *eh;
7564 struct ppc_dyn_relocs *p;
7565
e92d460e
AM		 7566 if (h->root.type == bfd_link_hash_warning)
7567 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7568
65f38f15
AM		 7569 eh = (struct ppc_link_hash_entry *) h;
7570 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7571 {
7572 asection *s = p->sec->output_section;
7573
7574 if (s != NULL && (s->flags & SEC_READONLY) != 0)
7575 {
4ce794b7 7576 struct bfd_link_info *info = inf;
65f38f15
AM		 7577
7578 info->flags |= DF_TEXTREL;
7579
7580 /* Not an error, just cut short the traversal. */
b34976b6 7581 return FALSE;
65f38f15
AM		 7582 }
7583 }
b34976b6 7584 return TRUE;
65f38f15
AM		 7585}
7586
7587/* Set the sizes of the dynamic sections. */
7588
b34976b6 7589static bfd_boolean
4ce794b7
AM		 7590ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
7591 struct bfd_link_info *info)
65f38f15
AM		 7592{
7593 struct ppc_link_hash_table *htab;
7594 bfd *dynobj;
7595 asection *s;
b34976b6 7596 bfd_boolean relocs;
65f38f15
AM		 7597 bfd *ibfd;
7598
7599 htab = ppc_hash_table (info);
7600 dynobj = htab->elf.dynobj;
7601 if (dynobj == NULL)
7602 abort ();
7603
7604 if (htab->elf.dynamic_sections_created)
7605 {
7606 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 7607 if (info->executable)
65f38f15
AM		 7608 {
7609 s = bfd_get_section_by_name (dynobj, ".interp");
7610 if (s == NULL)
7611 abort ();
eea6121a 7612 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM		 7613 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
7614 }
7615 }
7616
7617 /* Set up .got offsets for local syms, and space for local dynamic
7618 relocs. */
7619 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7620 {
411e1bfb
AM		 7621 struct got_entry **lgot_ents;
7622 struct got_entry **end_lgot_ents;
e7b938ca 7623 char *lgot_masks;
65f38f15
AM		 7624 bfd_size_type locsymcount;
7625 Elf_Internal_Shdr *symtab_hdr;
7626 asection *srel;
7627
ee75fd95 7628 if (!is_ppc64_elf_target (ibfd->xvec))
65f38f15
AM		 7629 continue;
7630
e717da7e
AM		 7631 if (ppc64_tlsld_got (ibfd)->refcount > 0)
7632 {
7633 s = ppc64_elf_tdata (ibfd)->got;
eea6121a
AM		 7634 ppc64_tlsld_got (ibfd)->offset = s->size;
7635 s->size += 16;
e717da7e
AM		 7636 if (info->shared)
7637 {
7638 srel = ppc64_elf_tdata (ibfd)->relgot;
eea6121a 7639 srel->size += sizeof (Elf64_External_Rela);
e717da7e
AM		 7640 }
7641 }
7642 else
7643 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
7644
65f38f15
AM		 7645 for (s = ibfd->sections; s != NULL; s = s->next)
7646 {
ec338859 7647 struct ppc_dyn_relocs *p;
65f38f15 7648
6edfbbad 7649 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
65f38f15 7650 {
ec338859
AM		 7651 if (!bfd_is_abs_section (p->sec)
7652 && bfd_is_abs_section (p->sec->output_section))
7653 {
7654 /* Input section has been discarded, either because
7655 it is a copy of a linkonce section or due to
7656 linker script /DISCARD/, so we'll be discarding
7657 the relocs too. */
7658 }
248866a8 7659 else if (p->count != 0)
ec338859
AM		 7660 {
7661 srel = elf_section_data (p->sec)->sreloc;
eea6121a 7662 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 7663 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
7664 info->flags |= DF_TEXTREL;
ec338859 7665 }
65f38f15
AM		 7666 }
7667 }
7668
411e1bfb
AM		 7669 lgot_ents = elf_local_got_ents (ibfd);
7670 if (!lgot_ents)
65f38f15
AM		 7671 continue;
7672
7673 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7674 locsymcount = symtab_hdr->sh_info;
411e1bfb 7675 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 7676 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 7677 s = ppc64_elf_tdata (ibfd)->got;
7678 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 7679 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 7680 {
411e1bfb
AM		 7681 struct got_entry *ent;
7682
7683 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
7684 if (ent->got.refcount > 0)
7685 {
e7b938ca 7686 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 7687 {
e717da7e 7688 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 7689 {
eea6121a
AM		 7690 ppc64_tlsld_got (ibfd)->offset = s->size;
7691 s->size += 16;
411e1bfb 7692 if (info->shared)
eea6121a 7693 srel->size += sizeof (Elf64_External_Rela);
411e1bfb 7694 }
e717da7e 7695 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM		 7696 }
7697 else
7698 {
eea6121a 7699 ent->got.offset = s->size;
e7b938ca 7700 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb 7701 {
eea6121a 7702 s->size += 16;
411e1bfb 7703 if (info->shared)
eea6121a 7704 srel->size += 2 * sizeof (Elf64_External_Rela);
411e1bfb
AM		 7705 }
7706 else
7707 {
eea6121a 7708 s->size += 8;
411e1bfb 7709 if (info->shared)
eea6121a 7710 srel->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 7711 }
7712 }
7713 }
7714 else
7715 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 7716 }
7717 }
7718
7719 /* Allocate global sym .plt and .got entries, and space for global
7720 sym dynamic relocs. */
4ce794b7 7721 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM		 7722
7723 /* We now have determined the sizes of the various dynamic sections.
7724 Allocate memory for them. */
b34976b6 7725 relocs = FALSE;
65f38f15
AM		 7726 for (s = dynobj->sections; s != NULL; s = s->next)
7727 {
7728 if ((s->flags & SEC_LINKER_CREATED) == 0)
7729 continue;
7730
4ce794b7 7731 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 7732 /* These haven't been allocated yet; don't strip. */
7733 continue;
e717da7e
AM		 7734 else if (s == htab->got
7735 || s == htab->plt
c456f082
AM		 7736 || s == htab->glink
7737 || s == htab->dynbss)
65f38f15
AM		 7738 {
7739 /* Strip this section if we don't need it; see the
7740 comment below. */
5bd4f169 7741 }
65f38f15 7742 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169 7743 {
c456f082 7744 if (s->size != 0)
5bd4f169 7745 {
4ce794b7 7746 if (s != htab->relplt)
b34976b6 7747 relocs = TRUE;
5bd4f169
AM		 7748
7749 /* We use the reloc_count field as a counter if we need
7750 to copy relocs into the output file. */
7751 s->reloc_count = 0;
7752 }
7753 }
65f38f15 7754 else
5bd4f169
AM		 7755 {
7756 /* It's not one of our sections, so don't allocate space. */
7757 continue;
7758 }
7759
eea6121a 7760 if (s->size == 0)
5bd4f169 7761 {
c456f082
AM		 7762 /* If we don't need this section, strip it from the
7763 output file. This is mostly to handle .rela.bss and
7764 .rela.plt. We must create both sections in
7765 create_dynamic_sections, because they must be created
7766 before the linker maps input sections to output
7767 sections. The linker does that before
7768 adjust_dynamic_symbol is called, and it is that
7769 function which decides whether anything needs to go
7770 into these sections. */
8423293d 7771 s->flags |= SEC_EXCLUDE;
5bd4f169
AM		 7772 continue;
7773 }
7774
c456f082 7775 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5f333394
AM		 7776 continue;
7777
65f38f15
AM		 7778 /* Allocate memory for the section contents. We use bfd_zalloc
7779 here in case unused entries are not reclaimed before the
7780 section's contents are written out. This should not happen,
411e1bfb
AM		 7781 but this way if it does we get a R_PPC64_NONE reloc in .rela
7782 sections instead of garbage.
7783 We also rely on the section contents being zero when writing
7784 the GOT. */
eea6121a 7785 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 7786 if (s->contents == NULL)
b34976b6 7787 return FALSE;
5bd4f169
AM		 7788 }
7789
e717da7e
AM		 7790 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7791 {
ee75fd95 7792 if (!is_ppc64_elf_target (ibfd->xvec))
7b53ace3
AM		 7793 continue;
7794
e717da7e
AM		 7795 s = ppc64_elf_tdata (ibfd)->got;
7796 if (s != NULL && s != htab->got)
7797 {
eea6121a 7798 if (s->size == 0)
8423293d 7799 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 7800 else
7801 {
eea6121a 7802 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 7803 if (s->contents == NULL)
7804 return FALSE;
7805 }
7806 }
7807 s = ppc64_elf_tdata (ibfd)->relgot;
7808 if (s != NULL)
7809 {
eea6121a 7810 if (s->size == 0)
8423293d 7811 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 7812 else
7813 {
eea6121a 7814 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 7815 if (s->contents == NULL)
7816 return FALSE;
7817 relocs = TRUE;
7818 s->reloc_count = 0;
7819 }
7820 }
7821 }
7822
e86ce104 7823 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 7824 {
7825 /* Add some entries to the .dynamic section. We fill in the
7826 values later, in ppc64_elf_finish_dynamic_sections, but we
7827 must add the entries now so that we get the correct size for
7828 the .dynamic section. The DT_DEBUG entry is filled in by the
7829 dynamic linker and used by the debugger. */
dc810e39 7830#define add_dynamic_entry(TAG, VAL) \
5a580b3a 7831 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 7832
36af4a4e 7833 if (info->executable)
5bd4f169 7834 {
dc810e39 7835 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 7836 return FALSE;
5bd4f169
AM		 7837 }
7838
eea6121a 7839 if (htab->plt != NULL && htab->plt->size != 0)
5bd4f169 7840 {
dc810e39
AM		 7841 if (!add_dynamic_entry (DT_PLTGOT, 0)
7842 || !add_dynamic_entry (DT_PLTRELSZ, 0)
7843 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 7844 || !add_dynamic_entry (DT_JMPREL, 0)
7845 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 7846 return FALSE;
5bd4f169
AM		 7847 }
7848
19397422
AM		 7849 if (NO_OPD_RELOCS)
7850 {
7851 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
7852 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 7853 return FALSE;
19397422
AM		 7854 }
7855
5bd4f169
AM		 7856 if (relocs)
7857 {
dc810e39
AM		 7858 if (!add_dynamic_entry (DT_RELA, 0)
7859 || !add_dynamic_entry (DT_RELASZ, 0)
7860 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 7861 return FALSE;
5bd4f169 7862
65f38f15
AM		 7863 /* If any dynamic relocs apply to a read-only section,
7864 then we need a DT_TEXTREL entry. */
248866a8 7865 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 7866 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 7867
65f38f15 7868 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 7869 {
65f38f15 7870 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 7871 return FALSE;
5bd4f169 7872 }
5bd4f169 7873 }
5bd4f169 7874 }
65f38f15 7875#undef add_dynamic_entry
5bd4f169 7876
b34976b6 7877 return TRUE;
5bd4f169
AM		 7878}
7879
721956f4 7880/* Determine the type of stub needed, if any, for a call. */
5bd4f169 7881
4ce794b7
AM		 7882static inline enum ppc_stub_type
7883ppc_type_of_stub (asection *input_sec,
7884 const Elf_Internal_Rela *rel,
7885 struct ppc_link_hash_entry **hash,
7886 bfd_vma destination)
5bd4f169 7887{
721956f4
AM		 7888 struct ppc_link_hash_entry *h = *hash;
7889 bfd_vma location;
7890 bfd_vma branch_offset;
7891 bfd_vma max_branch_offset;
4ce794b7 7892 enum elf_ppc64_reloc_type r_type;
5bd4f169 7893
721956f4
AM		 7894 if (h != NULL)
7895 {
7fe2b9a6
AM		 7896 struct ppc_link_hash_entry *fdh = h;
7897 if (fdh->oh != NULL
7898 && fdh->oh->is_func_descriptor)
7899 fdh = fdh->oh;
8387904d 7900
7fe2b9a6 7901 if (fdh->elf.dynindx != -1)
5bd4f169 7902 {
411e1bfb 7903 struct plt_entry *ent;
8387904d 7904
7fe2b9a6 7905 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 7906 if (ent->addend == rel->r_addend
7907 && ent->plt.offset != (bfd_vma) -1)
7908 {
7fe2b9a6 7909 *hash = fdh;
411e1bfb
AM		 7910 return ppc_stub_plt_call;
7911 }
5bd4f169
AM		 7912 }
7913
7fe2b9a6
AM		 7914 /* Here, we know we don't have a plt entry. If we don't have a
7915 either a defined function descriptor or a defined entry symbol
7916 in a regular object file, then it is pointless trying to make
7917 any other type of stub. */
7918 if (!((fdh->elf.root.type == bfd_link_hash_defined
7919 || fdh->elf.root.type == bfd_link_hash_defweak)
7920 && fdh->elf.root.u.def.section->output_section != NULL)
7921 && !((h->elf.root.type == bfd_link_hash_defined
7922 || h->elf.root.type == bfd_link_hash_defweak)
7923 && h->elf.root.u.def.section->output_section != NULL))
721956f4 7924 return ppc_stub_none;
5d1634d7 7925 }
5d1634d7 7926
721956f4
AM		 7927 /* Determine where the call point is. */
7928 location = (input_sec->output_offset
7929 + input_sec->output_section->vma
7930 + rel->r_offset);
5d1634d7 7931
721956f4
AM		 7932 branch_offset = destination - location;
7933 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 7934
721956f4
AM		 7935 /* Determine if a long branch stub is needed. */
7936 max_branch_offset = 1 << 25;
4ce794b7 7937 if (r_type != R_PPC64_REL24)
721956f4 7938 max_branch_offset = 1 << 15;
5d1634d7 7939
721956f4
AM		 7940 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
7941 /* We need a stub. Figure out whether a long_branch or plt_branch
7942 is needed later. */
7943 return ppc_stub_long_branch;
5d1634d7 7944
721956f4 7945 return ppc_stub_none;
5d1634d7
AM		 7946}
7947
7948/* Build a .plt call stub. */
7949
4ce794b7
AM		 7950static inline bfd_byte *
7951build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM		 7952{
7953#define PPC_LO(v) ((v) & 0xffff)
7954#define PPC_HI(v) (((v) >> 16) & 0xffff)
7955#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7956
5d1634d7 7957 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 7958 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM		 7959 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
7960 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 7961 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 7962 offset += 8;
7963 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
7964 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 7965 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 7966 offset += 8;
7967 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
7968 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
7969 bfd_put_32 (obfd, BCTR, p), p += 4;
7970 return p;
7971}
7972
b34976b6 7973static bfd_boolean
4ce794b7 7974ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 7975{
721956f4
AM		 7976 struct ppc_stub_hash_entry *stub_entry;
7977 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 7978 struct bfd_link_info *info;
7979 struct ppc_link_hash_table *htab;
721956f4
AM		 7980 bfd_byte *loc;
7981 bfd_byte *p;
7982 unsigned int indx;
411e1bfb 7983 struct plt_entry *ent;
ee75fd95 7984 bfd_vma dest, off;
721956f4 7985 int size;
5d1634d7 7986
721956f4
AM		 7987 /* Massage our args to the form they really have. */
7988 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 7989 info = in_arg;
5d1634d7 7990
5d1634d7
AM		 7991 htab = ppc_hash_table (info);
7992
721956f4 7993 /* Make a note of the offset within the stubs for this entry. */
eea6121a 7994 stub_entry->stub_offset = stub_entry->stub_sec->size;
97b639ba 7995 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 7996
4ce794b7 7997 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 7998 switch (stub_entry->stub_type)
5d1634d7 7999 {
721956f4 8000 case ppc_stub_long_branch:
ad8e1ba5 8001 case ppc_stub_long_branch_r2off:
721956f4 8002 /* Branches are relative. This is where we are going to. */
ee75fd95
AM		 8003 off = dest = (stub_entry->target_value
8004 + stub_entry->target_section->output_offset
8005 + stub_entry->target_section->output_section->vma);
5d1634d7 8006
721956f4
AM		 8007 /* And this is where we are coming from. */
8008 off -= (stub_entry->stub_offset
97b639ba
AM		 8009 + stub_entry->stub_sec->output_offset
8010 + stub_entry->stub_sec->output_section->vma);
e86ce104 8011
ad8e1ba5
AM		 8012 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
8013 size = 4;
8014 else
8015 {
8016 bfd_vma r2off;
8017
8018 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8019 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 8020 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 8021 loc += 4;
97b639ba 8022 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 8023 loc += 4;
97b639ba 8024 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 8025 loc += 4;
8026 off -= 12;
8027 size = 16;
8028 }
97b639ba 8029 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5 8030
5c3dead3
AM		 8031 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8032 {
8033 (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"),
8034 stub_entry->root.string);
8035 htab->stub_error = TRUE;
8036 return FALSE;
8037 }
ee75fd95
AM		 8038
8039 if (info->emitrelocations)
8040 {
8041 Elf_Internal_Rela *relocs, *r;
8042 struct bfd_elf_section_data *elfsec_data;
8043
8044 elfsec_data = elf_section_data (stub_entry->stub_sec);
8045 relocs = elfsec_data->relocs;
8046 if (relocs == NULL)
8047 {
8048 bfd_size_type relsize;
8049 relsize = stub_entry->stub_sec->reloc_count * sizeof (*relocs);
8050 relocs = bfd_alloc (htab->stub_bfd, relsize);
8051 if (relocs == NULL)
8052 return FALSE;
8053 elfsec_data->relocs = relocs;
8054 elfsec_data->rel_hdr.sh_size = relsize;
8055 elfsec_data->rel_hdr.sh_entsize = 24;
8056 stub_entry->stub_sec->reloc_count = 0;
8057 }
8058 r = relocs + stub_entry->stub_sec->reloc_count;
8059 stub_entry->stub_sec->reloc_count += 1;
8060 r->r_offset = loc - stub_entry->stub_sec->contents;
8061 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
8062 r->r_addend = dest;
8063 if (stub_entry->h != NULL)
8064 {
8065 struct elf_link_hash_entry **hashes;
8066 unsigned long symndx;
8067 struct ppc_link_hash_entry *h;
8068
8069 hashes = elf_sym_hashes (htab->stub_bfd);
8070 if (hashes == NULL)
8071 {
8072 bfd_size_type hsize;
8073
8074 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
8075 hashes = bfd_zalloc (htab->stub_bfd, hsize);
8076 if (hashes == NULL)
8077 return FALSE;
8078 elf_sym_hashes (htab->stub_bfd) = hashes;
8079 htab->stub_globals = 1;
8080 }
8081 symndx = htab->stub_globals++;
8082 h = stub_entry->h;
8083 hashes[symndx] = &h->elf;
8084 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
8085 if (h->oh != NULL && h->oh->is_func)
8086 h = h->oh;
8087 if (h->elf.root.u.def.section != stub_entry->target_section)
8088 /* H is an opd symbol. The addend must be zero. */
8089 r->r_addend = 0;
8090 else
8091 {
8092 off = (h->elf.root.u.def.value
8093 + h->elf.root.u.def.section->output_offset
8094 + h->elf.root.u.def.section->output_section->vma);
8095 r->r_addend -= off;
8096 }
8097 }
8098 }
721956f4 8099 break;
e86ce104 8100
721956f4 8101 case ppc_stub_plt_branch:
ad8e1ba5 8102 case ppc_stub_plt_branch_r2off:
721956f4
AM		 8103 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8104 stub_entry->root.string + 9,
b34976b6 8105 FALSE, FALSE);
721956f4
AM		 8106 if (br_entry == NULL)
8107 {
8108 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
5c3dead3 8109 stub_entry->root.string);
b34976b6
AM		 8110 htab->stub_error = TRUE;
8111 return FALSE;
721956f4
AM		 8112 }
8113
8114 off = (stub_entry->target_value
8115 + stub_entry->target_section->output_offset
8116 + stub_entry->target_section->output_section->vma);
8117
4ce794b7
AM		 8118 bfd_put_64 (htab->brlt->owner, off,
8119 htab->brlt->contents + br_entry->offset);
721956f4 8120
ee75fd95 8121 if (htab->relbrlt != NULL)
721956f4
AM		 8122 {
8123 /* Create a reloc for the branch lookup table entry. */
8124 Elf_Internal_Rela rela;
ad8e1ba5 8125 bfd_byte *rl;
5d1634d7 8126
721956f4 8127 rela.r_offset = (br_entry->offset
4ce794b7
AM		 8128 + htab->brlt->output_offset
8129 + htab->brlt->output_section->vma);
721956f4
AM		 8130 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
8131 rela.r_addend = off;
8132
4ce794b7
AM		 8133 rl = htab->relbrlt->contents;
8134 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
8135 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM		 8136 }
8137
8138 off = (br_entry->offset
4ce794b7
AM		 8139 + htab->brlt->output_offset
8140 + htab->brlt->output_section->vma
8141 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 8142 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8143
ad8e1ba5 8144 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 8145 {
8146 (*_bfd_error_handler)
e86ce104 8147 (_("linkage table error against `%s'"),
721956f4 8148 stub_entry->root.string);
5d1634d7 8149 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 8150 htab->stub_error = TRUE;
8151 return FALSE;
5d1634d7 8152 }
41bd81ab 8153
721956f4 8154 indx = off;
ad8e1ba5
AM		 8155 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8156 {
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
AM		 8160 size = 16;
8161 }
8162 else
8163 {
8164 bfd_vma r2off;
8165
8166 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8167 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 8168 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 8169 loc += 4;
97b639ba 8170 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 8171 loc += 4;
97b639ba 8172 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 8173 loc += 4;
97b639ba 8174 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 8175 loc += 4;
97b639ba 8176 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 8177 size = 28;
8178 }
8179 loc += 4;
97b639ba 8180 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 8181 loc += 4;
97b639ba 8182 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 8183 break;
5d1634d7 8184
721956f4 8185 case ppc_stub_plt_call:
c862ae31
AM		 8186 /* Do the best we can for shared libraries built without
8187 exporting ".foo" for each "foo". This can happen when symbol
8188 versioning scripts strip all bar a subset of symbols. */
8387904d
AM		 8189 if (stub_entry->h->oh != NULL
8190 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined
34814b9f 8191 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak)
c862ae31
AM		 8192 {
8193 /* Point the symbol at the stub. There may be multiple stubs,
8194 we don't really care; The main thing is to make this sym
8f3bab57
AM		 8195 defined somewhere. Maybe defining the symbol in the stub
8196 section is a silly idea. If we didn't do this, htab->top_id
8197 could disappear. */
34814b9f
AM		 8198 stub_entry->h->oh->elf.root.type = bfd_link_hash_defined;
8199 stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec;
8200 stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset;
c862ae31
AM		 8201 }
8202
721956f4 8203 /* Now build the stub. */
411e1bfb
AM		 8204 off = (bfd_vma) -1;
8205 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8206 if (ent->addend == stub_entry->addend)
8207 {
8208 off = ent->plt.offset;
8209 break;
8210 }
721956f4
AM		 8211 if (off >= (bfd_vma) -2)
8212 abort ();
8213
8214 off &= ~ (bfd_vma) 1;
4ce794b7
AM		 8215 off += (htab->plt->output_offset
8216 + htab->plt->output_section->vma
8217 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 8218 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8219
ad8e1ba5 8220 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 8221 {
8222 (*_bfd_error_handler)
8223 (_("linkage table error against `%s'"),
8224 stub_entry->h->elf.root.root.string);
8225 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 8226 htab->stub_error = TRUE;
8227 return FALSE;
721956f4
AM		 8228 }
8229
97b639ba 8230 p = build_plt_stub (htab->stub_bfd, loc, off);
721956f4
AM		 8231 size = p - loc;
8232 break;
8233
8234 default:
8235 BFD_FAIL ();
b34976b6 8236 return FALSE;
721956f4
AM		 8237 }
8238
eea6121a 8239 stub_entry->stub_sec->size += size;
97b639ba 8240
ee75fd95 8241 if (htab->emit_stub_syms)
97b639ba
AM		 8242 {
8243 struct elf_link_hash_entry *h;
ee75fd95
AM		 8244 size_t len1, len2;
8245 char *name;
8246 const char *const stub_str[] = { "long_branch",
8247 "long_branch_r2off",
8248 "plt_branch",
8249 "plt_branch_r2off",
8250 "plt_call" };
8251
8252 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
8253 len2 = strlen (stub_entry->root.string);
8254 name = bfd_malloc (len1 + len2 + 2);
8255 if (name == NULL)
8256 return FALSE;
8257 memcpy (name, stub_entry->root.string, 9);
8258 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
8259 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
8260 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
97b639ba
AM		 8261 if (h == NULL)
8262 return FALSE;
8263 if (h->root.type == bfd_link_hash_new)
8264 {
8265 h->root.type = bfd_link_hash_defined;
8266 h->root.u.def.section = stub_entry->stub_sec;
8267 h->root.u.def.value = stub_entry->stub_offset;
f5385ebf
AM		 8268 h->ref_regular = 1;
8269 h->def_regular = 1;
8270 h->ref_regular_nonweak = 1;
8271 h->forced_local = 1;
8272 h->non_elf = 0;
97b639ba
AM		 8273 }
8274 }
8275
b34976b6 8276 return TRUE;
721956f4
AM		 8277}
8278
8279/* As above, but don't actually build the stub. Just bump offset so
8280 we know stub section sizes, and select plt_branch stubs where
8281 long_branch stubs won't do. */
8282
b34976b6 8283static bfd_boolean
4ce794b7 8284ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 8285{
8286 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 8287 struct bfd_link_info *info;
721956f4
AM		 8288 struct ppc_link_hash_table *htab;
8289 bfd_vma off;
8290 int size;
8291
8292 /* Massage our args to the form they really have. */
8293 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 8294 info = in_arg;
8295
8296 htab = ppc_hash_table (info);
721956f4
AM		 8297
8298 if (stub_entry->stub_type == ppc_stub_plt_call)
8299 {
411e1bfb 8300 struct plt_entry *ent;
58ac9f71 8301 off = (bfd_vma) -1;
411e1bfb
AM		 8302 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8303 if (ent->addend == stub_entry->addend)
8304 {
8305 off = ent->plt.offset & ~(bfd_vma) 1;
8306 break;
8307 }
58ac9f71 8308 if (off >= (bfd_vma) -2)
411e1bfb 8309 abort ();
4ce794b7
AM		 8310 off += (htab->plt->output_offset
8311 + htab->plt->output_section->vma
8312 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 8313 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8314
ad8e1ba5 8315 size = PLT_CALL_STUB_SIZE;
4ce794b7 8316 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM		 8317 size += 4;
8318 }
8319 else
8320 {
ad8e1ba5
AM		 8321 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
8322 variants. */
721956f4
AM		 8323 off = (stub_entry->target_value
8324 + stub_entry->target_section->output_offset
8325 + stub_entry->target_section->output_section->vma);
eea6121a 8326 off -= (stub_entry->stub_sec->size
721956f4
AM		 8327 + stub_entry->stub_sec->output_offset
8328 + stub_entry->stub_sec->output_section->vma);
8329
ad8e1ba5
AM		 8330 /* Reset the stub type from the plt variant in case we now
8331 can reach with a shorter stub. */
8332 if (stub_entry->stub_type >= ppc_stub_plt_branch)
8333 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
8334
8335 size = 4;
8336 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
8337 {
8338 off -= 12;
8339 size = 16;
8340 }
8341
8342 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 8343 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8344 {
8345 struct ppc_branch_hash_entry *br_entry;
8346
8347 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8348 stub_entry->root.string + 9,
b34976b6 8349 TRUE, FALSE);
721956f4
AM		 8350 if (br_entry == NULL)
8351 {
8352 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
5c3dead3 8353 stub_entry->root.string);
b34976b6
AM		 8354 htab->stub_error = TRUE;
8355 return FALSE;
721956f4
AM		 8356 }
8357
8358 if (br_entry->iter != htab->stub_iteration)
8359 {
8360 br_entry->iter = htab->stub_iteration;
eea6121a
AM		 8361 br_entry->offset = htab->brlt->size;
8362 htab->brlt->size += 8;
63bc6f6c 8363
ee75fd95 8364 if (htab->relbrlt != NULL)
eea6121a 8365 htab->relbrlt->size += sizeof (Elf64_External_Rela);
721956f4 8366 }
ad8e1ba5
AM		 8367
8368 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 8369 size = 16;
ad8e1ba5
AM		 8370 if (stub_entry->stub_type != ppc_stub_plt_branch)
8371 size = 28;
721956f4 8372 }
ee75fd95
AM		 8373
8374 if (info->emitrelocations
8375 && (stub_entry->stub_type == ppc_stub_long_branch
8376 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
8377 stub_entry->stub_sec->reloc_count += 1;
721956f4
AM		 8378 }
8379
eea6121a 8380 stub_entry->stub_sec->size += size;
b34976b6 8381 return TRUE;
721956f4
AM		 8382}
8383
8384/* Set up various things so that we can make a list of input sections
8385 for each output section included in the link. Returns -1 on error,
cedb70c5 8386 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 8387
8388int
4c52953f
AM		 8389ppc64_elf_setup_section_lists (bfd *output_bfd,
8390 struct bfd_link_info *info,
8391 int no_multi_toc)
721956f4
AM		 8392{
8393 bfd *input_bfd;
734b6cf9 8394 int top_id, top_index, id;
721956f4 8395 asection *section;
734b6cf9 8396 asection **input_list;
721956f4
AM		 8397 bfd_size_type amt;
8398 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8399
4c52953f
AM		 8400 htab->no_multi_toc = no_multi_toc;
8401
4ce794b7 8402 if (htab->brlt == NULL)
721956f4
AM		 8403 return 0;
8404
1e2f5b6e 8405 /* Find the top input section id. */
3d6f9012 8406 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 8407 input_bfd != NULL;
8408 input_bfd = input_bfd->link_next)
8409 {
721956f4
AM		 8410 for (section = input_bfd->sections;
8411 section != NULL;
8412 section = section->next)
8413 {
8414 if (top_id < section->id)
8415 top_id = section->id;
8416 }
8417 }
721956f4 8418
8f3bab57 8419 htab->top_id = top_id;
721956f4 8420 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 8421 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 8422 if (htab->stub_group == NULL)
8423 return -1;
8424
3d6f9012
AM		 8425 /* Set toc_off for com, und, abs and ind sections. */
8426 for (id = 0; id < 3; id++)
8427 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 8428
3d6f9012 8429 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 8430
8431 /* We can't use output_bfd->section_count here to find the top output
8432 section index as some sections may have been removed, and
8423293d 8433 strip_excluded_output_sections doesn't renumber the indices. */
734b6cf9
AM		 8434 for (section = output_bfd->sections, top_index = 0;
8435 section != NULL;
8436 section = section->next)
8437 {
8438 if (top_index < section->index)
8439 top_index = section->index;
8440 }
8441
8442 htab->top_index = top_index;
8443 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 8444 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 8445 htab->input_list = input_list;
8446 if (input_list == NULL)
8447 return -1;
8448
721956f4
AM		 8449 return 1;
8450}
8451
e717da7e
AM		 8452/* The linker repeatedly calls this function for each TOC input section
8453 and linker generated GOT section. Group input bfds such that the toc
8454 within a group is less than 64k in size. Will break with cute linker
8455 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 8456
8457void
4ce794b7 8458ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 8459{
8460 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8461
4c52953f
AM		 8462 if (!htab->no_multi_toc)
8463 {
8464 bfd_vma addr = isec->output_offset + isec->output_section->vma;
8465 bfd_vma off = addr - htab->toc_curr;
8466
8467 if (off + isec->size > 0x10000)
8468 htab->toc_curr = addr;
99877b66 8469
4c52953f
AM		 8470 elf_gp (isec->owner) = (htab->toc_curr
8471 - elf_gp (isec->output_section->owner)
8472 + TOC_BASE_OFF);
8473 }
ad8e1ba5
AM		 8474}
8475
8476/* Called after the last call to the above function. */
8477
8478void
4c52953f 8479ppc64_elf_reinit_toc (bfd *output_bfd, struct bfd_link_info *info)
ad8e1ba5
AM		 8480{
8481 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5 8482
4c52953f
AM		 8483 htab->multi_toc_needed = htab->toc_curr != elf_gp (output_bfd);
8484
ad8e1ba5
AM		 8485 /* toc_curr tracks the TOC offset used for code sections below in
8486 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 8487 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 8488}
8489
9b5ecbd0
AM		 8490/* No toc references were found in ISEC. If the code in ISEC makes no
8491 calls, then there's no need to use toc adjusting stubs when branching
8492 into ISEC. Actually, indirect calls from ISEC are OK as they will
4c52953f
AM		 8493 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
8494 needed, and 2 if a cyclical call-graph was found but no other reason
8495 for a stub was detected. If called from the top level, a return of
8496 2 means the same as a return of 0. */
9b5ecbd0
AM		 8497
8498static int
4ce794b7 8499toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0 8500{
4c52953f
AM		 8501 Elf_Internal_Rela *relstart, *rel;
8502 Elf_Internal_Sym *local_syms;
9b5ecbd0 8503 int ret;
4c52953f 8504 struct ppc_link_hash_table *htab;
9b5ecbd0 8505
772119ce
AM		 8506 /* We know none of our code bearing sections will need toc stubs. */
8507 if ((isec->flags & SEC_LINKER_CREATED) != 0)
8508 return 0;
8509
eea6121a 8510 if (isec->size == 0)
082c50f8
AM		 8511 return 0;
8512
4c52953f
AM		 8513 if (isec->output_section == NULL)
8514 return 0;
8515
9b5ecbd0
AM		 8516 /* Hack for linux kernel. .fixup contains branches, but only back to
8517 the function that hit an exception. */
4c52953f
AM		 8518 if (strcmp (isec->name, ".fixup") == 0)
8519 return 0;
9b5ecbd0 8520
4c52953f
AM		 8521 if (isec->reloc_count == 0)
8522 return 0;
8523
8524 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
8525 info->keep_memory);
8526 if (relstart == NULL)
8527 return -1;
8528
8529 /* Look for branches to outside of this section. */
8530 local_syms = NULL;
8531 ret = 0;
8532 htab = ppc_hash_table (info);
8533 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
9b5ecbd0 8534 {
4c52953f
AM		 8535 enum elf_ppc64_reloc_type r_type;
8536 unsigned long r_symndx;
8537 struct elf_link_hash_entry *h;
8538 Elf_Internal_Sym *sym;
8539 asection *sym_sec;
8540 long *opd_adjust;
8541 bfd_vma sym_value;
8542 bfd_vma dest;
8543
8544 r_type = ELF64_R_TYPE (rel->r_info);
8545 if (r_type != R_PPC64_REL24
8546 && r_type != R_PPC64_REL14
8547 && r_type != R_PPC64_REL14_BRTAKEN
8548 && r_type != R_PPC64_REL14_BRNTAKEN)
8549 continue;
8550
8551 r_symndx = ELF64_R_SYM (rel->r_info);
8552 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
8553 isec->owner))
9b5ecbd0 8554 {
4c52953f
AM		 8555 ret = -1;
8556 break;
9b5ecbd0 8557 }
9b5ecbd0 8558
2917689a
AM		 8559 /* Calls to dynamic lib functions go through a plt call stub
8560 that uses r2. Branches to undefined symbols might be a call
8561 using old-style dot symbols that can be satisfied by a plt
8562 call into a new-style dynamic library. */
4c52953f 8563 if (sym_sec == NULL)
2917689a
AM		 8564 {
8565 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
8566 if (eh != NULL
8567 && eh->oh != NULL
8568 && eh->oh->elf.plt.plist != NULL)
8569 {
8570 ret = 1;
8571 break;
8572 }
4c52953f 8573
2917689a
AM		 8574 /* Ignore other undefined symbols. */
8575 continue;
8576 }
8577
8578 /* Assume branches to other sections not included in the link need
8579 stubs too, to cover -R and absolute syms. */
4c52953f
AM		 8580 if (sym_sec->output_section == NULL)
8581 {
8582 ret = 1;
8583 break;
8584 }
8585
8586 if (h == NULL)
8587 sym_value = sym->st_value;
8588 else
8589 {
8590 if (h->root.type != bfd_link_hash_defined
8591 && h->root.type != bfd_link_hash_defweak)
8592 abort ();
8593 sym_value = h->root.u.def.value;
8594 }
8595 sym_value += rel->r_addend;
8596
8597 /* If this branch reloc uses an opd sym, find the code section. */
8598 opd_adjust = get_opd_info (sym_sec);
8599 if (opd_adjust != NULL)
8600 {
4c52953f
AM		 8601 if (h == NULL)
8602 {
8603 long adjust;
8604
8605 adjust = opd_adjust[sym->st_value / 8];
8606 if (adjust == -1)
8607 /* Assume deleted functions won't ever be called. */
8608 continue;
8609 sym_value += adjust;
8610 }
8611
8612 dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL);
8613 if (dest == (bfd_vma) -1)
8614 continue;
8615 }
8616 else
8617 dest = (sym_value
8618 + sym_sec->output_offset
8619 + sym_sec->output_section->vma);
8620
8621 /* Ignore branch to self. */
8622 if (sym_sec == isec)
8623 continue;
8624
8625 /* If the called function uses the toc, we need a stub. */
8626 if (sym_sec->has_toc_reloc
8627 || sym_sec->makes_toc_func_call)
8628 {
8629 ret = 1;
8630 break;
8631 }
8632
8633 /* Assume any branch that needs a long branch stub might in fact
8634 need a plt_branch stub. A plt_branch stub uses r2. */
8635 else if (dest - (isec->output_offset
8636 + isec->output_section->vma
8637 + rel->r_offset) + (1 << 25) >= (2 << 25))
9b5ecbd0
AM		 8638 {
8639 ret = 1;
8640 break;
8641 }
4c52953f
AM		 8642
8643 /* If calling back to a section in the process of being tested, we
8644 can't say for sure that no toc adjusting stubs are needed, so
8645 don't return zero. */
8646 else if (sym_sec->call_check_in_progress)
8647 ret = 2;
8648
8649 /* Branches to another section that itself doesn't have any TOC
8650 references are OK. Recursively call ourselves to check. */
8651 else if (sym_sec->id <= htab->top_id
8652 && htab->stub_group[sym_sec->id].toc_off == 0)
8653 {
8654 int recur;
8655
8656 /* Mark current section as indeterminate, so that other
8657 sections that call back to current won't be marked as
8658 known. */
8659 isec->call_check_in_progress = 1;
8660 recur = toc_adjusting_stub_needed (info, sym_sec);
8661 isec->call_check_in_progress = 0;
8662
8663 if (recur < 0)
8664 {
8665 /* An error. Exit. */
8666 ret = -1;
8667 break;
8668 }
8669 else if (recur <= 1)
8670 {
8671 /* Known result. Mark as checked and set section flag. */
8672 htab->stub_group[sym_sec->id].toc_off = 1;
8673 if (recur != 0)
8674 {
8675 sym_sec->makes_toc_func_call = 1;
8676 ret = 1;
8677 break;
8678 }
8679 }
8680 else
8681 {
8682 /* Unknown result. Continue checking. */
8683 ret = 2;
8684 }
8685 }
9b5ecbd0
AM		 8686 }
8687
4c52953f
AM		 8688 if (local_syms != NULL
8689 && (elf_tdata (isec->owner)->symtab_hdr.contents
8690 != (unsigned char *) local_syms))
8691 free (local_syms);
8692 if (elf_section_data (isec)->relocs != relstart)
8693 free (relstart);
8694
9b5ecbd0
AM		 8695 return ret;
8696}
8697
721956f4
AM		 8698/* The linker repeatedly calls this function for each input section,
8699 in the order that input sections are linked into output sections.
8700 Build lists of input sections to determine groupings between which
8701 we may insert linker stubs. */
8702
9b5ecbd0 8703bfd_boolean
4ce794b7 8704ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 8705{
8706 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8707
734b6cf9
AM		 8708 if ((isec->output_section->flags & SEC_CODE) != 0
8709 && isec->output_section->index <= htab->top_index)
721956f4 8710 {
734b6cf9 8711 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 8712 /* Steal the link_sec pointer for our list. */
721956f4 8713#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 8714 /* This happens to make the list in reverse order,
8715 which is what we want. */
734b6cf9
AM		 8716 PREV_SEC (isec) = *list;
8717 *list = isec;
721956f4 8718 }
ad8e1ba5 8719
4c52953f 8720 if (htab->multi_toc_needed)
9b5ecbd0 8721 {
4c52953f
AM		 8722 /* If a code section has a function that uses the TOC then we need
8723 to use the right TOC (obviously). Also, make sure that .opd gets
8724 the correct TOC value for R_PPC64_TOC relocs that don't have or
8725 can't find their function symbol (shouldn't ever happen now). */
8726 if (isec->has_toc_reloc || (isec->flags & SEC_CODE) == 0)
8727 {
8728 if (elf_gp (isec->owner) != 0)
8729 htab->toc_curr = elf_gp (isec->owner);
8730 }
8731 else if (htab->stub_group[isec->id].toc_off == 0)
8732 {
8733 int ret = toc_adjusting_stub_needed (info, isec);
8734 if (ret < 0)
8735 return FALSE;
8736 else
8737 isec->makes_toc_func_call = ret & 1;
8738 }
9b5ecbd0 8739 }
ad8e1ba5
AM		 8740
8741 /* Functions that don't use the TOC can belong in any TOC group.
8742 Use the last TOC base. This happens to make _init and _fini
8743 pasting work. */
8744 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 8745 return TRUE;
721956f4
AM		 8746}
8747
8748/* See whether we can group stub sections together. Grouping stub
8749 sections may result in fewer stubs. More importantly, we need to
8750 put all .init* and .fini* stubs at the beginning of the .init or
8751 .fini output sections respectively, because glibc splits the
8752 _init and _fini functions into multiple parts. Putting a stub in
8753 the middle of a function is not a good idea. */
8754
8755static void
4ce794b7
AM		 8756group_sections (struct ppc_link_hash_table *htab,
8757 bfd_size_type stub_group_size,
8758 bfd_boolean stubs_always_before_branch)
721956f4 8759{
734b6cf9
AM		 8760 asection **list = htab->input_list + htab->top_index;
8761 do
721956f4 8762 {
734b6cf9
AM		 8763 asection *tail = *list;
8764 while (tail != NULL)
721956f4 8765 {
734b6cf9
AM		 8766 asection *curr;
8767 asection *prev;
8768 bfd_size_type total;
8769 bfd_boolean big_sec;
8770 bfd_vma curr_toc;
8771
8772 curr = tail;
eea6121a 8773 total = tail->size;
5c3dead3
AM		 8774 big_sec = total > stub_group_size;
8775 if (big_sec)
8776 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
8777 tail->owner, tail);
734b6cf9
AM		 8778 curr_toc = htab->stub_group[tail->id].toc_off;
8779
8780 while ((prev = PREV_SEC (curr)) != NULL
8781 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM		 8782 < stub_group_size)
8783 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 8784 curr = prev;
8785
8786 /* OK, the size from the start of CURR to the end is less
8787 than stub_group_size and thus can be handled by one stub
8788 section. (or the tail section is itself larger than
8789 stub_group_size, in which case we may be toast.) We
8790 should really be keeping track of the total size of stubs
8791 added here, as stubs contribute to the final output
8792 section size. That's a little tricky, and this way will
8793 only break if stubs added make the total size more than
8794 2^25, ie. for the default stub_group_size, if stubs total
8795 more than 2097152 bytes, or nearly 75000 plt call stubs. */
8796 do
721956f4
AM		 8797 {
8798 prev = PREV_SEC (tail);
734b6cf9 8799 /* Set up this stub group. */
721956f4
AM		 8800 htab->stub_group[tail->id].link_sec = curr;
8801 }
734b6cf9
AM		 8802 while (tail != curr && (tail = prev) != NULL);
8803
8804 /* But wait, there's more! Input sections up to stub_group_size
8805 bytes before the stub section can be handled by it too.
8806 Don't do this if we have a really large section after the
8807 stubs, as adding more stubs increases the chance that
8808 branches may not reach into the stub section. */
8809 if (!stubs_always_before_branch && !big_sec)
8810 {
8811 total = 0;
8812 while (prev != NULL
8813 && ((total += tail->output_offset - prev->output_offset)
8814 < stub_group_size)
8815 && htab->stub_group[prev->id].toc_off == curr_toc)
8816 {
8817 tail = prev;
8818 prev = PREV_SEC (tail);
8819 htab->stub_group[tail->id].link_sec = curr;
8820 }
8821 }
8822 tail = prev;
721956f4
AM		 8823 }
8824 }
734b6cf9
AM		 8825 while (list-- != htab->input_list);
8826 free (htab->input_list);
721956f4
AM		 8827#undef PREV_SEC
8828}
8829
721956f4
AM		 8830/* Determine and set the size of the stub section for a final link.
8831
8832 The basic idea here is to examine all the relocations looking for
8833 PC-relative calls to a target that is unreachable with a "bl"
8834 instruction. */
8835
b34976b6 8836bfd_boolean
4ce794b7 8837ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 8838 struct bfd_link_info *info,
8839 bfd_signed_vma group_size,
8840 asection *(*add_stub_section) (const char *, asection *),
8841 void (*layout_sections_again) (void))
721956f4
AM		 8842{
8843 bfd_size_type stub_group_size;
b34976b6 8844 bfd_boolean stubs_always_before_branch;
721956f4
AM		 8845 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8846
8847 /* Stash our params away. */
721956f4
AM		 8848 htab->add_stub_section = add_stub_section;
8849 htab->layout_sections_again = layout_sections_again;
8850 stubs_always_before_branch = group_size < 0;
8851 if (group_size < 0)
8852 stub_group_size = -group_size;
8853 else
8854 stub_group_size = group_size;
8855 if (stub_group_size == 1)
8856 {
8857 /* Default values. */
58ac9f71
AM		 8858 if (stubs_always_before_branch)
8859 {
8860 stub_group_size = 0x1e00000;
8861 if (htab->has_14bit_branch)
8862 stub_group_size = 0x7800;
8863 }
8864 else
8865 {
8866 stub_group_size = 0x1c00000;
8867 if (htab->has_14bit_branch)
8868 stub_group_size = 0x7000;
8869 }
721956f4
AM		 8870 }
8871
8872 group_sections (htab, stub_group_size, stubs_always_before_branch);
8873
721956f4
AM		 8874 while (1)
8875 {
8876 bfd *input_bfd;
8877 unsigned int bfd_indx;
8878 asection *stub_sec;
721956f4
AM		 8879
8880 htab->stub_iteration += 1;
721956f4
AM		 8881
8882 for (input_bfd = info->input_bfds, bfd_indx = 0;
8883 input_bfd != NULL;
8884 input_bfd = input_bfd->link_next, bfd_indx++)
8885 {
8886 Elf_Internal_Shdr *symtab_hdr;
8887 asection *section;
6cdc0ccc 8888 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM		 8889
8890 /* We'll need the symbol table in a second. */
8891 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
8892 if (symtab_hdr->sh_info == 0)
8893 continue;
8894
721956f4
AM		 8895 /* Walk over each section attached to the input bfd. */
8896 for (section = input_bfd->sections;
8897 section != NULL;
8898 section = section->next)
8899 {
721956f4 8900 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 8901
8902 /* If there aren't any relocs, then there's nothing more
8903 to do. */
8904 if ((section->flags & SEC_RELOC) == 0
8905 || section->reloc_count == 0)
8906 continue;
8907
8908 /* If this section is a link-once section that will be
8909 discarded, then don't create any stubs. */
8910 if (section->output_section == NULL
8911 || section->output_section->owner != output_bfd)
8912 continue;
8913
1e2f5b6e
AM		 8914 /* Get the relocs. */
8915 internal_relocs
4ce794b7 8916 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 8917 info->keep_memory);
721956f4 8918 if (internal_relocs == NULL)
1e2f5b6e 8919 goto error_ret_free_local;
721956f4
AM		 8920
8921 /* Now examine each relocation. */
8922 irela = internal_relocs;
8923 irelaend = irela + section->reloc_count;
8924 for (; irela < irelaend; irela++)
8925 {
4ce794b7
AM		 8926 enum elf_ppc64_reloc_type r_type;
8927 unsigned int r_indx;
721956f4
AM		 8928 enum ppc_stub_type stub_type;
8929 struct ppc_stub_hash_entry *stub_entry;
8387904d 8930 asection *sym_sec, *code_sec;
721956f4
AM		 8931 bfd_vma sym_value;
8932 bfd_vma destination;
8843416a 8933 bfd_boolean ok_dest;
721956f4 8934 struct ppc_link_hash_entry *hash;
8387904d 8935 struct ppc_link_hash_entry *fdh;
411e1bfb
AM		 8936 struct elf_link_hash_entry *h;
8937 Elf_Internal_Sym *sym;
721956f4
AM		 8938 char *stub_name;
8939 const asection *id_sec;
8387904d 8940 long *opd_adjust;
721956f4
AM		 8941
8942 r_type = ELF64_R_TYPE (irela->r_info);
8943 r_indx = ELF64_R_SYM (irela->r_info);
8944
4ce794b7 8945 if (r_type >= R_PPC64_max)
721956f4
AM		 8946 {
8947 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 8948 goto error_ret_free_internal;
721956f4
AM		 8949 }
8950
8951 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 8952 if (r_type != R_PPC64_REL24
8953 && r_type != R_PPC64_REL14
8954 && r_type != R_PPC64_REL14_BRTAKEN
8955 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 8956 continue;
8957
8958 /* Now determine the call target, its name, value,
8959 section. */
411e1bfb
AM		 8960 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8961 r_indx, input_bfd))
8962 goto error_ret_free_internal;
8963 hash = (struct ppc_link_hash_entry *) h;
8964
8843416a 8965 ok_dest = FALSE;
8387904d 8966 fdh = NULL;
7fe2b9a6 8967 sym_value = 0;
411e1bfb 8968 if (hash == NULL)
721956f4 8969 {
411e1bfb 8970 sym_value = sym->st_value;
8843416a 8971 ok_dest = TRUE;
721956f4 8972 }
7fe2b9a6
AM		 8973 else if (hash->elf.root.type == bfd_link_hash_defined
8974 || hash->elf.root.type == bfd_link_hash_defweak)
8975 {
8976 sym_value = hash->elf.root.u.def.value;
8977 if (sym_sec->output_section != NULL)
8978 ok_dest = TRUE;
8979 }
8980 else if (hash->elf.root.type == bfd_link_hash_undefweak
8981 || hash->elf.root.type == bfd_link_hash_undefined)
721956f4 8982 {
99877b66 8983 /* Recognise an old ABI func code entry sym, and
7fe2b9a6
AM		 8984 use the func descriptor sym instead if it is
8985 defined. */
ceb1f1ef 8986 if (hash->elf.root.root.string[0] == '.'
8387904d
AM		 8987 && (fdh = get_fdh (hash, htab)) != NULL)
8988 {
8387904d
AM		 8989 if (fdh->elf.root.type == bfd_link_hash_defined
8990 || fdh->elf.root.type == bfd_link_hash_defweak)
8991 {
8992 sym_sec = fdh->elf.root.u.def.section;
8993 sym_value = fdh->elf.root.u.def.value;
8994 if (sym_sec->output_section != NULL)
8995 ok_dest = TRUE;
8996 }
99877b66
AM		 8997 else
8998 fdh = NULL;
8387904d 8999 }
7fe2b9a6
AM		 9000 }
9001 else
9002 {
9003 bfd_set_error (bfd_error_bad_value);
9004 goto error_ret_free_internal;
721956f4
AM		 9005 }
9006
8843416a
AM		 9007 destination = 0;
9008 if (ok_dest)
9009 {
9010 sym_value += irela->r_addend;
9011 destination = (sym_value
9012 + sym_sec->output_offset
9013 + sym_sec->output_section->vma);
9014 }
9015
8387904d
AM		 9016 code_sec = sym_sec;
9017 opd_adjust = get_opd_info (sym_sec);
9018 if (opd_adjust != NULL)
9019 {
9020 bfd_vma dest;
9021
9022 if (hash == NULL)
9023 {
3f764659 9024 long adjust = opd_adjust[sym_value / 8];
8387904d
AM		 9025 if (adjust == -1)
9026 continue;
9027 sym_value += adjust;
9028 }
9029 dest = opd_entry_value (sym_sec, sym_value,
9030 &code_sec, &sym_value);
9031 if (dest != (bfd_vma) -1)
9032 {
9033 destination = dest;
9034 if (fdh != NULL)
9035 {
9036 /* Fixup old ABI sym to point at code
9037 entry. */
99877b66 9038 hash->elf.root.type = bfd_link_hash_defweak;
8387904d
AM		 9039 hash->elf.root.u.def.section = code_sec;
9040 hash->elf.root.u.def.value = sym_value;
9041 }
9042 }
9043 }
9044
721956f4
AM		 9045 /* Determine what (if any) linker stub is needed. */
9046 stub_type = ppc_type_of_stub (section, irela, &hash,
9047 destination);
ad8e1ba5
AM		 9048
9049 if (stub_type != ppc_stub_plt_call)
9050 {
9051 /* Check whether we need a TOC adjusting stub.
9052 Since the linker pastes together pieces from
9053 different object files when creating the
9054 _init and _fini functions, it may be that a
9055 call to what looks like a local sym is in
9056 fact a call needing a TOC adjustment. */
8387904d
AM		 9057 if (code_sec != NULL
9058 && code_sec->output_section != NULL
9059 && (htab->stub_group[code_sec->id].toc_off
9b5ecbd0 9060 != htab->stub_group[section->id].toc_off)
4c52953f
AM		 9061 && (code_sec->has_toc_reloc
9062 || code_sec->makes_toc_func_call))
ad8e1ba5
AM		 9063 stub_type = ppc_stub_long_branch_r2off;
9064 }
9065
721956f4
AM		 9066 if (stub_type == ppc_stub_none)
9067 continue;
9068
411e1bfb
AM		 9069 /* __tls_get_addr calls might be eliminated. */
9070 if (stub_type != ppc_stub_plt_call
9071 && hash != NULL
8387904d
AM		 9072 && (hash == htab->tls_get_addr
9073 || hash == htab->tls_get_addr_fd)
411e1bfb
AM		 9074 && section->has_tls_reloc
9075 && irela != internal_relocs)
9076 {
9077 /* Get tls info. */
e7b938ca 9078 char *tls_mask;
411e1bfb 9079
0d4792f7 9080 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
411e1bfb
AM		 9081 irela - 1, input_bfd))
9082 goto error_ret_free_internal;
e7b938ca 9083 if (*tls_mask != 0)
411e1bfb
AM		 9084 continue;
9085 }
9086
721956f4
AM		 9087 /* Support for grouping stub sections. */
9088 id_sec = htab->stub_group[section->id].link_sec;
9089
9090 /* Get the name of this stub. */
9091 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
9092 if (!stub_name)
9093 goto error_ret_free_internal;
9094
9095 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 9096 stub_name, FALSE, FALSE);
721956f4
AM		 9097 if (stub_entry != NULL)
9098 {
9099 /* The proper stub has already been created. */
9100 free (stub_name);
9101 continue;
9102 }
9103
9104 stub_entry = ppc_add_stub (stub_name, section, htab);
9105 if (stub_entry == NULL)
9106 {
9107 free (stub_name);
6cdc0ccc
AM		 9108 error_ret_free_internal:
9109 if (elf_section_data (section)->relocs == NULL)
9110 free (internal_relocs);
9111 error_ret_free_local:
9112 if (local_syms != NULL
9113 && (symtab_hdr->contents
9114 != (unsigned char *) local_syms))
9115 free (local_syms);
b34976b6 9116 return FALSE;
721956f4
AM		 9117 }
9118
ad8e1ba5 9119 stub_entry->stub_type = stub_type;
721956f4 9120 stub_entry->target_value = sym_value;
8387904d 9121 stub_entry->target_section = code_sec;
721956f4 9122 stub_entry->h = hash;
411e1bfb 9123 stub_entry->addend = irela->r_addend;
ee75fd95
AM		 9124
9125 if (stub_entry->h != NULL)
9126 htab->stub_globals += 1;
721956f4
AM		 9127 }
9128
9129 /* We're done with the internal relocs, free them. */
6cdc0ccc 9130 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 9131 free (internal_relocs);
721956f4 9132 }
6cdc0ccc
AM		 9133
9134 if (local_syms != NULL
9135 && symtab_hdr->contents != (unsigned char *) local_syms)
9136 {
9137 if (!info->keep_memory)
9138 free (local_syms);
9139 else
9140 symtab_hdr->contents = (unsigned char *) local_syms;
9141 }
721956f4
AM		 9142 }
9143
5c3dead3 9144 /* We may have added some stubs. Find out the new size of the
721956f4
AM		 9145 stub sections. */
9146 for (stub_sec = htab->stub_bfd->sections;
9147 stub_sec != NULL;
9148 stub_sec = stub_sec->next)
e717da7e 9149 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
ee75fd95 9150 {
5c3dead3 9151 stub_sec->rawsize = stub_sec->size;
ee75fd95
AM		 9152 stub_sec->size = 0;
9153 stub_sec->reloc_count = 0;
9154 }
eea6121a
AM		 9155
9156 htab->brlt->size = 0;
ee75fd95 9157 if (htab->relbrlt != NULL)
eea6121a 9158 htab->relbrlt->size = 0;
721956f4 9159
63bc6f6c 9160 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4 9161
5c3dead3
AM		 9162 for (stub_sec = htab->stub_bfd->sections;
9163 stub_sec != NULL;
9164 stub_sec = stub_sec->next)
9165 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9166 && stub_sec->rawsize != stub_sec->size)
9167 break;
9168
9169 /* Exit from this loop when no stubs have been added, and no stubs
9170 have changed size. */
9171 if (stub_sec == NULL)
9172 break;
9173
721956f4
AM		 9174 /* Ask the linker to do its stuff. */
9175 (*htab->layout_sections_again) ();
9176 }
9177
c456f082 9178 /* It would be nice to strip htab->brlt from the output if the
afbe61cf
AM		 9179 section is empty, but it's too late. If we strip sections here,
9180 the dynamic symbol table is corrupted since the section symbol
9181 for the stripped section isn't written. */
721956f4 9182
b34976b6 9183 return TRUE;
721956f4
AM		 9184}
9185
9186/* Called after we have determined section placement. If sections
805fc799 9187 move, we'll be called again. Provide a value for TOCstart. */
721956f4 9188
805fc799 9189bfd_vma
4ce794b7 9190ppc64_elf_toc (bfd *obfd)
721956f4 9191{
805fc799
AM		 9192 asection *s;
9193 bfd_vma TOCstart;
721956f4 9194
805fc799
AM		 9195 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
9196 order. The TOC starts where the first of these sections starts. */
9197 s = bfd_get_section_by_name (obfd, ".got");
9198 if (s == NULL)
9199 s = bfd_get_section_by_name (obfd, ".toc");
9200 if (s == NULL)
9201 s = bfd_get_section_by_name (obfd, ".tocbss");
9202 if (s == NULL)
9203 s = bfd_get_section_by_name (obfd, ".plt");
9204 if (s == NULL)
9205 {
9206 /* This may happen for
9207 o references to TOC base (SYM@toc / TOC[tc0]) without a
9208 .toc directive
9209 o bad linker script
9210 o --gc-sections and empty TOC sections
9211
9212 FIXME: Warn user? */
9213
9214 /* Look for a likely section. We probably won't even be
9215 using TOCstart. */
9216 for (s = obfd->sections; s != NULL; s = s->next)
9217 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
9218 == (SEC_ALLOC | SEC_SMALL_DATA))
9219 break;
721956f4 9220 if (s == NULL)
805fc799
AM		 9221 for (s = obfd->sections; s != NULL; s = s->next)
9222 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
9223 == (SEC_ALLOC | SEC_SMALL_DATA))
9224 break;
721956f4 9225 if (s == NULL)
805fc799
AM		 9226 for (s = obfd->sections; s != NULL; s = s->next)
9227 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
9228 break;
721956f4 9229 if (s == NULL)
805fc799
AM		 9230 for (s = obfd->sections; s != NULL; s = s->next)
9231 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
9232 break;
9233 }
721956f4 9234
805fc799
AM		 9235 TOCstart = 0;
9236 if (s != NULL)
9237 TOCstart = s->output_section->vma + s->output_offset;
721956f4 9238
805fc799 9239 return TOCstart;
721956f4
AM		 9240}
9241
9242/* Build all the stubs associated with the current output file.
9243 The stubs are kept in a hash table attached to the main linker
9244 hash table. This function is called via gldelf64ppc_finish. */
9245
b34976b6 9246bfd_boolean
4ce794b7
AM		 9247ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
9248 struct bfd_link_info *info,
9249 char **stats)
5d1634d7
AM		 9250{
9251 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 9252 asection *stub_sec;
5d1634d7 9253 bfd_byte *p;
e717da7e 9254 int stub_sec_count = 0;
5d1634d7 9255
ad8e1ba5 9256 htab->emit_stub_syms = emit_stub_syms;
eea6121a
AM		 9257
9258 /* Allocate memory to hold the linker stubs. */
721956f4
AM		 9259 for (stub_sec = htab->stub_bfd->sections;
9260 stub_sec != NULL;
9261 stub_sec = stub_sec->next)
eea6121a
AM		 9262 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9263 && stub_sec->size != 0)
e717da7e 9264 {
eea6121a
AM		 9265 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
9266 if (stub_sec->contents == NULL)
9267 return FALSE;
9268 /* We want to check that built size is the same as calculated
9269 size. rawsize is a convenient location to use. */
9270 stub_sec->rawsize = stub_sec->size;
9271 stub_sec->size = 0;
e717da7e 9272 }
5d1634d7 9273
4ce794b7 9274 if (htab->plt != NULL)
5d1634d7 9275 {
9f951329 9276 unsigned int indx;
ad8e1ba5 9277 bfd_vma plt0;
9f951329 9278
721956f4 9279 /* Build the .glink plt call stub. */
4ce794b7
AM		 9280 plt0 = (htab->plt->output_section->vma
9281 + htab->plt->output_offset
9282 - (htab->glink->output_section->vma
9283 + htab->glink->output_offset
ad8e1ba5
AM		 9284 + GLINK_CALL_STUB_SIZE));
9285 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 9286 {
ad8e1ba5
AM		 9287 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
9288 bfd_set_error (bfd_error_bad_value);
9289 return FALSE;
721956f4 9290 }
721956f4 9291
97b639ba
AM		 9292 if (htab->emit_stub_syms)
9293 {
9294 struct elf_link_hash_entry *h;
9295 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
9296 if (h == NULL)
9297 return FALSE;
9298 if (h->root.type == bfd_link_hash_new)
9299 {
9300 h->root.type = bfd_link_hash_defined;
9301 h->root.u.def.section = htab->glink;
9302 h->root.u.def.value = 0;
f5385ebf
AM		 9303 h->ref_regular = 1;
9304 h->def_regular = 1;
9305 h->ref_regular_nonweak = 1;
9306 h->forced_local = 1;
9307 h->non_elf = 0;
97b639ba
AM		 9308 }
9309 }
4ce794b7
AM		 9310 p = htab->glink->contents;
9311 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 9312 p += 4;
4ce794b7 9313 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 9314 p += 4;
4ce794b7 9315 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 9316 p += 4;
4ce794b7 9317 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 9318 p += 4;
4ce794b7 9319 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 9320 p += 4;
4ce794b7 9321 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 9322 p += 4;
4ce794b7 9323 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 9324 p += 4;
4ce794b7 9325 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 9326 p += 4;
4ce794b7 9327 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 9328 p += 4;
4ce794b7 9329 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 9330 p += 4;
4ce794b7 9331 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 9332 p += 4;
4ce794b7 9333 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 9334 p += 4;
4ce794b7 9335 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 9336 p += 4;
4ce794b7 9337 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 9338 p += 4;
4ce794b7 9339 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 9340 p += 4;
4ce794b7 9341 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM		 9342 p += 4;
9343
9f951329
AM		 9344 /* Build the .glink lazy link call stubs. */
9345 indx = 0;
eea6121a 9346 while (p < htab->glink->contents + htab->glink->size)
9f951329
AM		 9347 {
9348 if (indx < 0x8000)
9349 {
4ce794b7 9350 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 9351 p += 4;
9352 }
9353 else
9354 {
4ce794b7 9355 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 9356 p += 4;
4ce794b7 9357 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 9358 p += 4;
9359 }
4ce794b7
AM		 9360 bfd_put_32 (htab->glink->owner,
9361 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 9362 indx++;
9f951329
AM		 9363 p += 4;
9364 }
eea6121a 9365 htab->glink->rawsize = p - htab->glink->contents;
5d1634d7 9366 }
5d1634d7 9367
eea6121a 9368 if (htab->brlt->size != 0)
721956f4 9369 {
4ce794b7 9370 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 9371 htab->brlt->size);
4ce794b7 9372 if (htab->brlt->contents == NULL)
b34976b6 9373 return FALSE;
721956f4 9374 }
ee75fd95 9375 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
63bc6f6c
AM		 9376 {
9377 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 9378 htab->relbrlt->size);
63bc6f6c
AM		 9379 if (htab->relbrlt->contents == NULL)
9380 return FALSE;
9381 }
5d1634d7 9382
721956f4
AM		 9383 /* Build the stubs as directed by the stub hash table. */
9384 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 9385
721956f4
AM		 9386 for (stub_sec = htab->stub_bfd->sections;
9387 stub_sec != NULL;
9388 stub_sec = stub_sec->next)
e717da7e
AM		 9389 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
9390 {
9391 stub_sec_count += 1;
eea6121a 9392 if (stub_sec->rawsize != stub_sec->size)
e717da7e
AM		 9393 break;
9394 }
5d1634d7 9395
721956f4 9396 if (stub_sec != NULL
eea6121a 9397 || htab->glink->rawsize != htab->glink->size)
5d1634d7 9398 {
b34976b6 9399 htab->stub_error = TRUE;
721956f4 9400 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 9401 }
721956f4 9402
d2a300cf
AM		 9403 if (htab->stub_error)
9404 return FALSE;
9405
9406 if (stats != NULL)
9407 {
9408 *stats = bfd_malloc (500);
9409 if (*stats == NULL)
9410 return FALSE;
9411
ee75fd95 9412 sprintf (*stats, _("linker stubs in %u group%s\n"
d2a300cf
AM		 9413 " branch %lu\n"
9414 " toc adjust %lu\n"
9415 " long branch %lu\n"
9416 " long toc adj %lu\n"
9417 " plt call %lu"),
e717da7e 9418 stub_sec_count,
ee75fd95 9419 stub_sec_count == 1 ? "" : "s",
4ce794b7
AM		 9420 htab->stub_count[ppc_stub_long_branch - 1],
9421 htab->stub_count[ppc_stub_long_branch_r2off - 1],
9422 htab->stub_count[ppc_stub_plt_branch - 1],
9423 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
9424 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 9425 }
9426 return TRUE;
5bd4f169
AM		 9427}
9428
99877b66
AM		 9429/* This function undoes the changes made by add_symbol_adjust. */
9430
9431static bfd_boolean
9432undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
9433{
9434 struct ppc_link_hash_entry *eh;
9435
9436 if (h->root.type == bfd_link_hash_indirect)
9437 return TRUE;
9438
9439 if (h->root.type == bfd_link_hash_warning)
9440 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9441
9442 eh = (struct ppc_link_hash_entry *) h;
9443 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
9444 return TRUE;
9445
9446 eh->elf.root.type = bfd_link_hash_undefined;
9447 return TRUE;
9448}
9449
9450void
9451ppc64_elf_restore_symbols (struct bfd_link_info *info)
9452{
9453 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9454 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
9455}
9456
5bd4f169
AM		 9457/* The RELOCATE_SECTION function is called by the ELF backend linker
9458 to handle the relocations for a section.
9459
9460 The relocs are always passed as Rela structures; if the section
9461 actually uses Rel structures, the r_addend field will always be
9462 zero.
9463
9464 This function is responsible for adjust the section contents as
9465 necessary, and (if using Rela relocs and generating a
1049f94e 9466 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 9467 necessary.
9468
9469 This function does not have to worry about setting the reloc
9470 address or the reloc symbol index.
9471
9472 LOCAL_SYMS is a pointer to the swapped in local symbols.
9473
9474 LOCAL_SECTIONS is an array giving the section in the input file
9475 corresponding to the st_shndx field of each local symbol.
9476
9477 The global hash table entry for the global symbols can be found
9478 via elf_sym_hashes (input_bfd).
9479
1049f94e 9480 When generating relocatable output, this function must handle
5bd4f169
AM		 9481 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
9482 going to be the section symbol corresponding to the output
9483 section, which means that the addend must be adjusted
9484 accordingly. */
9485
b34976b6 9486static bfd_boolean
4ce794b7
AM		 9487ppc64_elf_relocate_section (bfd *output_bfd,
9488 struct bfd_link_info *info,
9489 bfd *input_bfd,
9490 asection *input_section,
9491 bfd_byte *contents,
9492 Elf_Internal_Rela *relocs,
9493 Elf_Internal_Sym *local_syms,
9494 asection **local_sections)
5bd4f169 9495{
65f38f15 9496 struct ppc_link_hash_table *htab;
5bd4f169
AM		 9497 Elf_Internal_Shdr *symtab_hdr;
9498 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 9499 Elf_Internal_Rela *rel;
9500 Elf_Internal_Rela *relend;
411e1bfb
AM		 9501 Elf_Internal_Rela outrel;
9502 bfd_byte *loc;
411e1bfb 9503 struct got_entry **local_got_ents;
5bd4f169 9504 bfd_vma TOCstart;
b34976b6
AM		 9505 bfd_boolean ret = TRUE;
9506 bfd_boolean is_opd;
96e0dda4 9507 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 9508 bfd_boolean is_power4 = FALSE;
5bd4f169 9509
1049f94e 9510 if (info->relocatable)
b34976b6 9511 return TRUE;
b491616a 9512
65f38f15 9513 /* Initialize howto table if needed. */
5bd4f169 9514 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 9515 ppc_howto_init ();
9516
65f38f15 9517 htab = ppc_hash_table (info);
ee75fd95
AM		 9518
9519 /* Don't relocate stub sections. */
9520 if (input_section->owner == htab->stub_bfd)
9521 return TRUE;
9522
411e1bfb 9523 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 9524 TOCstart = elf_gp (output_bfd);
5bd4f169
AM		 9525 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
9526 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 9527 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 9528
5bd4f169
AM		 9529 rel = relocs;
9530 relend = relocs + input_section->reloc_count;
9531 for (; rel < relend; rel++)
9532 {
04c9666a 9533 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM		 9534 bfd_vma addend;
9535 bfd_reloc_status_type r;
9536 Elf_Internal_Sym *sym;
9537 asection *sec;
039b3fef
AM		 9538 struct elf_link_hash_entry *h_elf;
9539 struct ppc_link_hash_entry *h;
9540 struct ppc_link_hash_entry *fdh;
5bd4f169 9541 const char *sym_name;
0d4792f7 9542 unsigned long r_symndx, toc_symndx;
951fd09b 9543 char tls_mask, tls_gd, tls_type;
0d4792f7 9544 char sym_type;
5bd4f169 9545 bfd_vma relocation;
b34976b6
AM		 9546 bfd_boolean unresolved_reloc;
9547 bfd_boolean warned;
50bc7936 9548 unsigned long insn, mask;
721956f4
AM		 9549 struct ppc_stub_hash_entry *stub_entry;
9550 bfd_vma max_br_offset;
9551 bfd_vma from;
5bd4f169 9552
4ce794b7 9553 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 9554 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 9555
9556 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
9557 symbol of the previous ADDR64 reloc. The symbol gives us the
9558 proper TOC base to use. */
9559 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
9560 && rel != relocs
9561 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
9562 && is_opd)
9563 r_symndx = ELF64_R_SYM (rel[-1].r_info);
9564
4ce794b7
AM		 9565 sym = NULL;
9566 sec = NULL;
039b3fef 9567 h_elf = NULL;
4ce794b7 9568 sym_name = NULL;
b34976b6
AM		 9569 unresolved_reloc = FALSE;
9570 warned = FALSE;
65f38f15 9571
0b13192e 9572 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 9573 {
9574 /* It's a local symbol. */
4025353c
AM		 9575 long *opd_adjust;
9576
5bd4f169
AM		 9577 sym = local_syms + r_symndx;
9578 sec = local_sections[r_symndx];
26c61ae5 9579 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
0d4792f7 9580 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 9581 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
4025353c
AM		 9582 opd_adjust = get_opd_info (sec);
9583 if (opd_adjust != NULL)
1e2f5b6e 9584 {
3f764659 9585 long adjust = opd_adjust[(sym->st_value + rel->r_addend) / 8];
4025353c
AM		 9586 if (adjust == -1)
9587 relocation = 0;
9588 else
9589 relocation += adjust;
1e2f5b6e 9590 }
5bd4f169
AM		 9591 }
9592 else
9593 {
b2a8e766
AM		 9594 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
9595 r_symndx, symtab_hdr, sym_hashes,
039b3fef 9596 h_elf, sec, relocation,
b2a8e766 9597 unresolved_reloc, warned);
039b3fef
AM		 9598 sym_name = h_elf->root.root.string;
9599 sym_type = h_elf->type;
5bd4f169 9600 }
039b3fef 9601 h = (struct ppc_link_hash_entry *) h_elf;
5bd4f169 9602
951fd09b
AM		 9603 /* TLS optimizations. Replace instruction sequences and relocs
9604 based on information we collected in tls_optimize. We edit
9605 RELOCS so that --emit-relocs will output something sensible
9606 for the final instruction stream. */
9607 tls_mask = 0;
9608 tls_gd = 0;
0d4792f7 9609 toc_symndx = 0;
d881513a 9610 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 9611 {
9612 if (h != NULL)
039b3fef 9613 tls_mask = h->tls_mask;
411e1bfb
AM		 9614 else if (local_got_ents != NULL)
9615 {
e7b938ca
AM		 9616 char *lgot_masks;
9617 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
9618 tls_mask = lgot_masks[r_symndx];
411e1bfb 9619 }
0d4792f7
AM		 9620 if (tls_mask == 0 && r_type == R_PPC64_TLS)
9621 {
9622 /* Check for toc tls entries. */
9623 char *toc_tls;
9624
9625 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
9626 rel, input_bfd))
9627 return FALSE;
9628
9629 if (toc_tls)
9630 tls_mask = *toc_tls;
9631 }
9632 }
9633
9634 /* Check that tls relocs are used with tls syms, and non-tls
9635 relocs are used with non-tls syms. */
9636 if (r_symndx != 0
9637 && r_type != R_PPC64_NONE
9638 && (h == NULL
039b3fef
AM		 9639 || h->elf.root.type == bfd_link_hash_defined
9640 || h->elf.root.type == bfd_link_hash_defweak)
0d4792f7
AM		 9641 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
9642 {
9643 if (r_type == R_PPC64_TLS && tls_mask != 0)
9644 /* R_PPC64_TLS is OK against a symbol in the TOC. */
9645 ;
9646 else
9647 (*_bfd_error_handler)
9648 (sym_type == STT_TLS
d003868e
AM		 9649 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
9650 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
9651 input_bfd,
9652 input_section,
0d4792f7
AM		 9653 (long) rel->r_offset,
9654 ppc64_elf_howto_table[r_type]->name,
9655 sym_name);
411e1bfb
AM		 9656 }
9657
9658 /* Ensure reloc mapping code below stays sane. */
9659 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
9660 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
9661 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
9662 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
9663 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
9664 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
9665 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
9666 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
9667 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
9668 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
9669 abort ();
0d4792f7 9670
411e1bfb
AM		 9671 switch (r_type)
9672 {
9673 default:
411e1bfb
AM		 9674 break;
9675
9676 case R_PPC64_TOC16:
9677 case R_PPC64_TOC16_LO:
9678 case R_PPC64_TOC16_DS:
9679 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 9680 {
9681 /* Check for toc tls entries. */
9682 char *toc_tls;
951fd09b 9683 int retval;
411e1bfb 9684
0d4792f7
AM		 9685 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
9686 rel, input_bfd);
951fd09b 9687 if (retval == 0)
411e1bfb
AM		 9688 return FALSE;
9689
9690 if (toc_tls)
9691 {
951fd09b 9692 tls_mask = *toc_tls;
411e1bfb
AM		 9693 if (r_type == R_PPC64_TOC16_DS
9694 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 9695 {
9696 if (tls_mask != 0
9697 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
9698 goto toctprel;
9699 }
411e1bfb 9700 else
951fd09b
AM		 9701 {
9702 /* If we found a GD reloc pair, then we might be
9703 doing a GD->IE transition. */
9704 if (retval == 2)
9705 {
9706 tls_gd = TLS_TPRELGD;
9707 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9708 goto tls_get_addr_check;
9709 }
9710 else if (retval == 3)
9711 {
9712 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
9713 goto tls_get_addr_check;
9714 }
9715 }
411e1bfb
AM		 9716 }
9717 }
9718 break;
9719
9720 case R_PPC64_GOT_TPREL16_DS:
9721 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 9722 if (tls_mask != 0
9723 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 9724 {
81407a69 9725 toctprel:
411e1bfb
AM		 9726 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
9727 insn &= 31 << 21;
9728 insn |= 0x3c0d0000; /* addis 0,13,0 */
9729 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
9730 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 9731 if (toc_symndx != 0)
9732 {
9733 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
9734 /* We changed the symbol. Start over in order to
9735 get h, sym, sec etc. right. */
9736 rel--;
9737 continue;
9738 }
9739 else
9740 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9741 }
9742 break;
9743
9744 case R_PPC64_TLS:
951fd09b
AM		 9745 if (tls_mask != 0
9746 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 9747 {
50bc7936 9748 bfd_vma rtra;
411e1bfb 9749 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 9750 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 9751 == ((31 << 26) | (13 << 11)))
9752 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 9753 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 9754 == ((31 << 26) | (13 << 16)))
9755 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
9756 else
9757 abort ();
9758 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
9759 /* add -> addi. */
9760 insn = 14 << 26;
9761 else if ((insn & (31 << 1)) == 23 << 1
9762 && ((insn & (31 << 6)) < 14 << 6
9763 || ((insn & (31 << 6)) >= 16 << 6
9764 && (insn & (31 << 6)) < 24 << 6)))
9765 /* load and store indexed -> dform. */
9766 insn = (32 | ((insn >> 6) & 31)) << 26;
9767 else if ((insn & (31 << 1)) == 21 << 1
9768 && (insn & (0x1a << 6)) == 0)
9769 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
9770 insn = (((58 | ((insn >> 6) & 4)) << 26)
9771 | ((insn >> 6) & 1));
9772 else if ((insn & (31 << 1)) == 21 << 1
9773 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
9774 /* lwax -> lwa. */
9775 insn = (58 << 26) | 2;
9776 else
9777 abort ();
9778 insn |= rtra;
9779 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb
AM		 9780 /* Was PPC64_TLS which sits on insn boundary, now
9781 PPC64_TPREL16_LO which is at insn+2. */
9782 rel->r_offset += 2;
0d4792f7
AM		 9783 r_type = R_PPC64_TPREL16_LO;
9784 if (toc_symndx != 0)
9785 {
9786 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
9787 /* We changed the symbol. Start over in order to
9788 get h, sym, sec etc. right. */
9789 rel--;
9790 continue;
9791 }
9792 else
9793 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9794 }
9795 break;
9796
411e1bfb
AM		 9797 case R_PPC64_GOT_TLSGD16_HI:
9798 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 9799 tls_gd = TLS_TPRELGD;
9800 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9801 goto tls_gdld_hi;
9802 break;
9803
411e1bfb
AM		 9804 case R_PPC64_GOT_TLSLD16_HI:
9805 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 9806 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 9807 {
951fd09b
AM		 9808 tls_gdld_hi:
9809 if ((tls_mask & tls_gd) != 0)
9810 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
9811 + R_PPC64_GOT_TPREL16_DS);
9812 else
411e1bfb 9813 {
951fd09b
AM		 9814 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
9815 rel->r_offset -= 2;
9816 r_type = R_PPC64_NONE;
411e1bfb 9817 }
951fd09b 9818 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9819 }
9820 break;
9821
951fd09b
AM		 9822 case R_PPC64_GOT_TLSGD16:
9823 case R_PPC64_GOT_TLSGD16_LO:
9824 tls_gd = TLS_TPRELGD;
9825 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9826 goto tls_get_addr_check;
9827 break;
411e1bfb 9828
951fd09b
AM		 9829 case R_PPC64_GOT_TLSLD16:
9830 case R_PPC64_GOT_TLSLD16_LO:
9831 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
9832 {
9833 tls_get_addr_check:
9834 if (rel + 1 < relend)
411e1bfb 9835 {
951fd09b
AM		 9836 enum elf_ppc64_reloc_type r_type2;
9837 unsigned long r_symndx2;
9838 struct elf_link_hash_entry *h2;
9839 bfd_vma insn1, insn2, insn3;
9840 bfd_vma offset;
9841
9842 /* The next instruction should be a call to
9843 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 9844 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM		 9845 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
9846 if (r_symndx2 < symtab_hdr->sh_info
9847 || (r_type2 != R_PPC64_REL14
9848 && r_type2 != R_PPC64_REL14_BRTAKEN
9849 && r_type2 != R_PPC64_REL14_BRNTAKEN
9850 && r_type2 != R_PPC64_REL24))
9851 break;
9852
9853 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
9854 while (h2->root.type == bfd_link_hash_indirect
9855 || h2->root.type == bfd_link_hash_warning)
9856 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
8387904d
AM		 9857 if (h2 == NULL || (h2 != &htab->tls_get_addr->elf
9858 && h2 != &htab->tls_get_addr_fd->elf))
951fd09b
AM		 9859 break;
9860
9861 /* OK, it checks out. Replace the call. */
9862 offset = rel[1].r_offset;
9863 insn1 = bfd_get_32 (output_bfd,
9864 contents + rel->r_offset - 2);
9865 insn3 = bfd_get_32 (output_bfd,
9866 contents + offset + 4);
9867 if ((tls_mask & tls_gd) != 0)
411e1bfb 9868 {
951fd09b
AM		 9869 /* IE */
9870 insn1 &= (1 << 26) - (1 << 2);
9871 insn1 |= 58 << 26; /* ld */
9872 insn2 = 0x7c636a14; /* add 3,3,13 */
9873 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
9874 if ((tls_mask & TLS_EXPLICIT) == 0)
9875 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
9876 + R_PPC64_GOT_TPREL16_DS);
9877 else
9878 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
9879 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9880 }
9881 else
951fd09b
AM		 9882 {
9883 /* LE */
9884 insn1 = 0x3c6d0000; /* addis 3,13,0 */
9885 insn2 = 0x38630000; /* addi 3,3,0 */
9886 if (tls_gd == 0)
9887 {
9888 /* Was an LD reloc. */
9889 r_symndx = 0;
e1918d23
AM		 9890 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
9891 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
951fd09b 9892 }
0d4792f7
AM		 9893 else if (toc_symndx != 0)
9894 r_symndx = toc_symndx;
951fd09b
AM		 9895 r_type = R_PPC64_TPREL16_HA;
9896 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9897 rel[1].r_info = ELF64_R_INFO (r_symndx,
9898 R_PPC64_TPREL16_LO);
9899 rel[1].r_offset += 2;
9900 }
9901 if (insn3 == NOP
9902 || insn3 == CROR_151515 || insn3 == CROR_313131)
9903 {
9904 insn3 = insn2;
9905 insn2 = NOP;
9906 rel[1].r_offset += 4;
9907 }
9908 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
9909 bfd_put_32 (output_bfd, insn2, contents + offset);
9910 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
0d4792f7 9911 if (tls_gd == 0 || toc_symndx != 0)
951fd09b 9912 {
0d4792f7
AM		 9913 /* We changed the symbol. Start over in order
9914 to get h, sym, sec etc. right. */
951fd09b
AM		 9915 rel--;
9916 continue;
9917 }
411e1bfb 9918 }
411e1bfb 9919 }
411e1bfb
AM		 9920 break;
9921
9922 case R_PPC64_DTPMOD64:
951fd09b
AM		 9923 if (rel + 1 < relend
9924 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
9925 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 9926 {
951fd09b
AM		 9927 if ((tls_mask & TLS_GD) == 0)
9928 {
9929 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
9930 if ((tls_mask & TLS_TPRELGD) != 0)
9931 r_type = R_PPC64_TPREL64;
9932 else
9933 {
4ce794b7 9934 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 9935 r_type = R_PPC64_NONE;
9936 }
9937 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9938 }
9939 }
9940 else
9941 {
9942 if ((tls_mask & TLS_LD) == 0)
411e1bfb 9943 {
4ce794b7 9944 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 9945 r_type = R_PPC64_NONE;
951fd09b 9946 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 9947 }
411e1bfb
AM		 9948 }
9949 break;
9950
9951 case R_PPC64_TPREL64:
951fd09b 9952 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 9953 {
9954 r_type = R_PPC64_NONE;
9955 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9956 }
9957 break;
9958 }
9959
9960 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 9961 insn = 0;
b25116a9
AM		 9962 max_br_offset = 1 << 25;
9963 addend = rel->r_addend;
65f38f15 9964 switch (r_type)
5bd4f169
AM		 9965 {
9966 default:
65f38f15 9967 break;
5bd4f169 9968
65f38f15
AM		 9969 /* Branch taken prediction relocations. */
9970 case R_PPC64_ADDR14_BRTAKEN:
9971 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 9972 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
9973 /* Fall thru. */
65f38f15 9974
86c76c7b 9975 /* Branch not taken prediction relocations. */
65f38f15
AM		 9976 case R_PPC64_ADDR14_BRNTAKEN:
9977 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 9978 insn |= bfd_get_32 (output_bfd,
9979 contents + rel->r_offset) & ~(0x01 << 21);
b25116a9 9980 /* Fall thru. */
86c76c7b 9981
b25116a9
AM		 9982 case R_PPC64_REL14:
9983 max_br_offset = 1 << 15;
9984 /* Fall thru. */
5bd4f169 9985
65f38f15 9986 case R_PPC64_REL24:
ad8e1ba5
AM		 9987 /* Calls to functions with a different TOC, such as calls to
9988 shared objects, need to alter the TOC pointer. This is
9989 done using a linkage stub. A REL24 branching to these
9990 linkage stubs needs to be followed by a nop, as the nop
9991 will be replaced with an instruction to restore the TOC
9992 base pointer. */
b25116a9 9993 stub_entry = NULL;
8387904d 9994 fdh = h;
ad8e1ba5 9995 if (((h != NULL
039b3fef
AM		 9996 && (((fdh = h->oh) != NULL
9997 && fdh->elf.plt.plist != NULL)
9998 || (fdh = h)->elf.plt.plist != NULL))
8387904d 9999 || (sec != NULL
ad8e1ba5 10000 && sec->output_section != NULL
b25116a9 10001 && sec->id <= htab->top_id
ad8e1ba5
AM		 10002 && (htab->stub_group[sec->id].toc_off
10003 != htab->stub_group[input_section->id].toc_off)))
721956f4 10004 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 10005 rel, htab)) != NULL
10006 && (stub_entry->stub_type == ppc_stub_plt_call
10007 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
10008 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 10009 {
b25116a9 10010 bfd_boolean can_plt_call = FALSE;
721956f4 10011
eea6121a 10012 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 10013 {
b25116a9
AM		 10014 unsigned long nop;
10015 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
10016 if (nop == NOP
10017 || nop == CROR_151515 || nop == CROR_313131)
41bd81ab 10018 {
4ce794b7 10019 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 10020 contents + rel->r_offset + 4);
b25116a9 10021 can_plt_call = TRUE;
41bd81ab 10022 }
5bd4f169 10023 }
721956f4
AM		 10024
10025 if (!can_plt_call)
10026 {
ad8e1ba5
AM		 10027 if (stub_entry->stub_type == ppc_stub_plt_call)
10028 {
10029 /* If this is a plain branch rather than a branch
10030 and link, don't require a nop. */
b25116a9
AM		 10031 unsigned long br;
10032 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
10033 if ((br & 1) == 0)
10034 can_plt_call = TRUE;
15b552e9
AM		 10035 else
10036 stub_entry = NULL;
ad8e1ba5 10037 }
6ab189d5 10038 else if (h != NULL
039b3fef 10039 && strcmp (h->elf.root.root.string,
6ab189d5
AM		 10040 ".__libc_start_main") == 0)
10041 {
10042 /* Allow crt1 branch to go via a toc adjusting stub. */
b25116a9 10043 can_plt_call = TRUE;
6ab189d5 10044 }
ad8e1ba5
AM		 10045 else
10046 {
10047 if (strcmp (input_section->output_section->name,
10048 ".init") == 0
10049 || strcmp (input_section->output_section->name,
10050 ".fini") == 0)
10051 (*_bfd_error_handler)
d003868e 10052 (_("%B(%A+0x%lx): automatic multiple TOCs "
ad8e1ba5
AM		 10053 "not supported using your crt files; "
10054 "recompile with -mminimal-toc or upgrade gcc"),
d003868e
AM		 10055 input_bfd,
10056 input_section,
ad8e1ba5
AM		 10057 (long) rel->r_offset);
10058 else
10059 (*_bfd_error_handler)
d003868e 10060 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
ad8e1ba5
AM		 10061 "does not allow automatic multiple TOCs; "
10062 "recompile with -mminimal-toc or "
10063 "-fno-optimize-sibling-calls, "
10064 "or make `%s' extern"),
d003868e
AM		 10065 input_bfd,
10066 input_section,
ad8e1ba5
AM		 10067 (long) rel->r_offset,
10068 sym_name,
10069 sym_name);
10070 bfd_set_error (bfd_error_bad_value);
10071 ret = FALSE;
10072 }
721956f4
AM		 10073 }
10074
b25116a9
AM		 10075 if (can_plt_call
10076 && stub_entry->stub_type == ppc_stub_plt_call)
10077 unresolved_reloc = FALSE;
10078 }
10079
8387904d
AM		 10080 if (stub_entry == NULL
10081 && get_opd_info (sec) != NULL)
10082 {
10083 /* The branch destination is the value of the opd entry. */
10084 bfd_vma off = (relocation - sec->output_section->vma
10085 - sec->output_offset + rel->r_addend);
10086 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
10087 if (dest != (bfd_vma) -1)
10088 {
10089 relocation = dest;
10090 addend = 0;
10091 }
10092 }
10093
b25116a9
AM		 10094 /* If the branch is out of reach we ought to have a long
10095 branch stub. */
10096 from = (rel->r_offset
10097 + input_section->output_offset
10098 + input_section->output_section->vma);
10099
10100 if (stub_entry == NULL
10101 && (relocation + rel->r_addend - from + max_br_offset
10102 >= 2 * max_br_offset)
10103 && r_type != R_PPC64_ADDR14_BRTAKEN
10104 && r_type != R_PPC64_ADDR14_BRNTAKEN)
039b3fef
AM		 10105 stub_entry = ppc_get_stub_entry (input_section, sec, h, rel,
10106 htab);
b25116a9
AM		 10107
10108 if (stub_entry != NULL)
10109 {
10110 /* Munge up the value and addend so that we call the stub
10111 rather than the procedure directly. */
10112 relocation = (stub_entry->stub_offset
10113 + stub_entry->stub_sec->output_offset
10114 + stub_entry->stub_sec->output_section->vma);
10115 addend = 0;
10116 }
10117
10118 if (insn != 0)
10119 {
10120 if (is_power4)
721956f4 10121 {
b25116a9
AM		 10122 /* Set 'a' bit. This is 0b00010 in BO field for branch
10123 on CR(BI) insns (BO == 001at or 011at), and 0b01000
10124 for branch on CTR insns (BO == 1a00t or 1a01t). */
10125 if ((insn & (0x14 << 21)) == (0x04 << 21))
10126 insn |= 0x02 << 21;
10127 else if ((insn & (0x14 << 21)) == (0x10 << 21))
10128 insn |= 0x08 << 21;
10129 else
10130 break;
10131 }
10132 else
10133 {
10134 /* Invert 'y' bit if not the default. */
10135 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
10136 insn ^= 0x01 << 21;
721956f4 10137 }
b25116a9
AM		 10138
10139 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5bd4f169 10140 }
e86ce104 10141
06da1e8e
AM		 10142 /* NOP out calls to undefined weak functions.
10143 We can thus call a weak function without first
10144 checking whether the function is defined. */
b25116a9 10145 else if (h != NULL
039b3fef 10146 && h->elf.root.type == bfd_link_hash_undefweak
b25116a9
AM		 10147 && r_type == R_PPC64_REL24
10148 && relocation == 0
10149 && rel->r_addend == 0)
e86ce104 10150 {
06da1e8e
AM		 10151 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
10152 continue;
e86ce104 10153 }
65f38f15
AM		 10154 break;
10155 }
5bd4f169 10156
65f38f15 10157 /* Set `addend'. */
411e1bfb 10158 tls_type = 0;
65f38f15
AM		 10159 switch (r_type)
10160 {
10161 default:
10162 (*_bfd_error_handler)
d003868e
AM		 10163 (_("%B: unknown relocation type %d for symbol %s"),
10164 input_bfd, (int) r_type, sym_name);
5bd4f169 10165
65f38f15 10166 bfd_set_error (bfd_error_bad_value);
b34976b6 10167 ret = FALSE;
65f38f15 10168 continue;
5bd4f169 10169
65f38f15 10170 case R_PPC64_NONE:
411e1bfb 10171 case R_PPC64_TLS:
04c9666a
AM		 10172 case R_PPC64_GNU_VTINHERIT:
10173 case R_PPC64_GNU_VTENTRY:
65f38f15 10174 continue;
5bd4f169
AM		 10175
10176 /* GOT16 relocations. Like an ADDR16 using the symbol's
10177 address in the GOT as relocation value instead of the
411e1bfb 10178 symbol's value itself. Also, create a GOT entry for the
5bd4f169 10179 symbol and put the symbol value there. */
411e1bfb
AM		 10180 case R_PPC64_GOT_TLSGD16:
10181 case R_PPC64_GOT_TLSGD16_LO:
10182 case R_PPC64_GOT_TLSGD16_HI:
10183 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 10184 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 10185 goto dogot;
10186
10187 case R_PPC64_GOT_TLSLD16:
10188 case R_PPC64_GOT_TLSLD16_LO:
10189 case R_PPC64_GOT_TLSLD16_HI:
10190 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 10191 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 10192 goto dogot;
10193
10194 case R_PPC64_GOT_TPREL16_DS:
10195 case R_PPC64_GOT_TPREL16_LO_DS:
10196 case R_PPC64_GOT_TPREL16_HI:
10197 case R_PPC64_GOT_TPREL16_HA:
10198 tls_type = TLS_TLS | TLS_TPREL;
10199 goto dogot;
10200
10201 case R_PPC64_GOT_DTPREL16_DS:
10202 case R_PPC64_GOT_DTPREL16_LO_DS:
10203 case R_PPC64_GOT_DTPREL16_HI:
10204 case R_PPC64_GOT_DTPREL16_HA:
10205 tls_type = TLS_TLS | TLS_DTPREL;
10206 goto dogot;
10207
65f38f15
AM		 10208 case R_PPC64_GOT16:
10209 case R_PPC64_GOT16_LO:
10210 case R_PPC64_GOT16_HI:
10211 case R_PPC64_GOT16_HA:
10212 case R_PPC64_GOT16_DS:
10213 case R_PPC64_GOT16_LO_DS:
411e1bfb 10214 dogot:
5bd4f169
AM		 10215 {
10216 /* Relocation is to the entry for this symbol in the global
10217 offset table. */
e717da7e 10218 asection *got;
d881513a 10219 bfd_vma *offp;
5bd4f169 10220 bfd_vma off;
d881513a 10221 unsigned long indx = 0;
65f38f15 10222
d881513a
AM		 10223 if (tls_type == (TLS_TLS | TLS_LD)
10224 && (h == NULL
f5385ebf 10225 || !h->elf.def_dynamic))
e717da7e 10226 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 10227 else
5bd4f169 10228 {
d881513a 10229 struct got_entry *ent;
5bd4f169 10230
d881513a
AM		 10231 if (h != NULL)
10232 {
10233 bfd_boolean dyn = htab->elf.dynamic_sections_created;
039b3fef
AM		 10234 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
10235 &h->elf)
d881513a 10236 || (info->shared
039b3fef 10237 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
d881513a
AM		 10238 /* This is actually a static link, or it is a
10239 -Bsymbolic link and the symbol is defined
10240 locally, or the symbol was forced to be local
10241 because of a version file. */
10242 ;
10243 else
10244 {
039b3fef 10245 indx = h->elf.dynindx;
d881513a
AM		 10246 unresolved_reloc = FALSE;
10247 }
039b3fef 10248 ent = h->elf.got.glist;
d881513a 10249 }
411e1bfb 10250 else
5bd4f169 10251 {
d881513a
AM		 10252 if (local_got_ents == NULL)
10253 abort ();
10254 ent = local_got_ents[r_symndx];
5bd4f169 10255 }
d881513a
AM		 10256
10257 for (; ent != NULL; ent = ent->next)
10258 if (ent->addend == rel->r_addend
e717da7e 10259 && ent->owner == input_bfd
d881513a
AM		 10260 && ent->tls_type == tls_type)
10261 break;
10262 if (ent == NULL)
10263 abort ();
10264 offp = &ent->got.offset;
5bd4f169 10265 }
411e1bfb 10266
e717da7e
AM		 10267 got = ppc64_elf_tdata (input_bfd)->got;
10268 if (got == NULL)
10269 abort ();
10270
411e1bfb
AM		 10271 /* The offset must always be a multiple of 8. We use the
10272 least significant bit to record whether we have already
10273 processed this entry. */
d881513a 10274 off = *offp;
411e1bfb
AM		 10275 if ((off & 1) != 0)
10276 off &= ~1;
5bd4f169
AM		 10277 else
10278 {
411e1bfb
AM		 10279 /* Generate relocs for the dynamic linker, except in
10280 the case of TLSLD where we'll use one entry per
10281 module. */
e717da7e
AM		 10282 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
10283
d881513a 10284 *offp = off | 1;
4e795f50
AM		 10285 if ((info->shared || indx != 0)
10286 && (h == NULL
039b3fef
AM		 10287 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10288 || h->elf.root.type != bfd_link_hash_undefweak))
5bd4f169 10289 {
e717da7e
AM		 10290 outrel.r_offset = (got->output_section->vma
10291 + got->output_offset
411e1bfb 10292 + off);
81407a69 10293 outrel.r_addend = rel->r_addend;
d881513a 10294 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 10295 {
411e1bfb 10296 outrel.r_addend = 0;
e515b051 10297 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 10298 if (tls_type == (TLS_TLS | TLS_GD))
10299 {
e717da7e
AM		 10300 loc = relgot->contents;
10301 loc += (relgot->reloc_count++
d881513a
AM		 10302 * sizeof (Elf64_External_Rela));
10303 bfd_elf64_swap_reloca_out (output_bfd,
10304 &outrel, loc);
e515b051 10305 outrel.r_offset += 8;
81407a69 10306 outrel.r_addend = rel->r_addend;
d881513a
AM		 10307 outrel.r_info
10308 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 10309 }
411e1bfb 10310 }
951fd09b 10311 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 10312 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 10313 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 10314 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
10315 else if (indx == 0)
81407a69
AM		 10316 {
10317 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
10318
10319 /* Write the .got section contents for the sake
10320 of prelink. */
e717da7e 10321 loc = got->contents + off;
23fbd6fa
JJ		 10322 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
10323 loc);
81407a69 10324 }
411e1bfb
AM		 10325 else
10326 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 10327
10328 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 10329 {
10330 outrel.r_addend += relocation;
10331 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 10332 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 10333 }
e717da7e
AM		 10334 loc = relgot->contents;
10335 loc += (relgot->reloc_count++
411e1bfb
AM		 10336 * sizeof (Elf64_External_Rela));
10337 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10338 }
10339
ad8e1ba5 10340 /* Init the .got section contents here if we're not
81407a69 10341 emitting a reloc. */
d881513a 10342 else
411e1bfb 10343 {
d881513a 10344 relocation += rel->r_addend;
7b609f53
AM		 10345 if (tls_type == (TLS_TLS | TLS_LD))
10346 relocation = 1;
10347 else if (tls_type != 0)
411e1bfb 10348 {
e1918d23 10349 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 10350 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 10351 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 10352
7b609f53
AM		 10353 if (tls_type == (TLS_TLS | TLS_GD))
10354 {
10355 bfd_put_64 (output_bfd, relocation,
e717da7e 10356 got->contents + off + 8);
7b609f53
AM		 10357 relocation = 1;
10358 }
411e1bfb 10359 }
7b609f53 10360
411e1bfb 10361 bfd_put_64 (output_bfd, relocation,
e717da7e 10362 got->contents + off);
5bd4f169
AM		 10363 }
10364 }
10365
65f38f15
AM		 10366 if (off >= (bfd_vma) -2)
10367 abort ();
10368
e717da7e 10369 relocation = got->output_offset + off;
65f38f15 10370
5bd4f169 10371 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 10372 addend = -TOC_BASE_OFF;
5bd4f169 10373 }
65f38f15
AM		 10374 break;
10375
10376 case R_PPC64_PLT16_HA:
10377 case R_PPC64_PLT16_HI:
10378 case R_PPC64_PLT16_LO:
10379 case R_PPC64_PLT32:
10380 case R_PPC64_PLT64:
10381 /* Relocation is to the entry for this symbol in the
10382 procedure linkage table. */
10383
10384 /* Resolve a PLT reloc against a local symbol directly,
10385 without using the procedure linkage table. */
10386 if (h == NULL)
10387 break;
10388
411e1bfb
AM		 10389 /* It's possible that we didn't make a PLT entry for this
10390 symbol. This happens when statically linking PIC code,
10391 or when using -Bsymbolic. Go find a match if there is a
10392 PLT entry. */
4ce794b7 10393 if (htab->plt != NULL)
65f38f15 10394 {
411e1bfb 10395 struct plt_entry *ent;
039b3fef 10396 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 10397 if (ent->addend == rel->r_addend
10398 && ent->plt.offset != (bfd_vma) -1)
10399 {
4ce794b7
AM		 10400 relocation = (htab->plt->output_section->vma
10401 + htab->plt->output_offset
411e1bfb
AM		 10402 + ent->plt.offset);
10403 unresolved_reloc = FALSE;
10404 }
65f38f15 10405 }
65f38f15 10406 break;
5bd4f169 10407
0b13192e
AM		 10408 case R_PPC64_TOC:
10409 /* Relocation value is TOC base. */
10410 relocation = TOCstart;
10411 if (r_symndx == 0)
10412 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM		 10413 else if (unresolved_reloc)
10414 ;
10415 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM		 10416 relocation += htab->stub_group[sec->id].toc_off;
10417 else
10418 unresolved_reloc = TRUE;
10419 goto dodyn2;
10420
5bd4f169
AM		 10421 /* TOC16 relocs. We want the offset relative to the TOC base,
10422 which is the address of the start of the TOC plus 0x8000.
10423 The TOC consists of sections .got, .toc, .tocbss, and .plt,
10424 in this order. */
65f38f15
AM		 10425 case R_PPC64_TOC16:
10426 case R_PPC64_TOC16_LO:
10427 case R_PPC64_TOC16_HI:
10428 case R_PPC64_TOC16_DS:
10429 case R_PPC64_TOC16_LO_DS:
10430 case R_PPC64_TOC16_HA:
ad8e1ba5 10431 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 10432 break;
10433
10434 /* Relocate against the beginning of the section. */
65f38f15
AM		 10435 case R_PPC64_SECTOFF:
10436 case R_PPC64_SECTOFF_LO:
10437 case R_PPC64_SECTOFF_HI:
10438 case R_PPC64_SECTOFF_DS:
10439 case R_PPC64_SECTOFF_LO_DS:
10440 case R_PPC64_SECTOFF_HA:
4ce794b7 10441 if (sec != NULL)
65f38f15 10442 addend -= sec->output_section->vma;
5bd4f169
AM		 10443 break;
10444
721956f4
AM		 10445 case R_PPC64_REL14:
10446 case R_PPC64_REL14_BRNTAKEN:
10447 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 10448 case R_PPC64_REL24:
10449 break;
10450
411e1bfb
AM		 10451 case R_PPC64_TPREL16:
10452 case R_PPC64_TPREL16_LO:
10453 case R_PPC64_TPREL16_HI:
10454 case R_PPC64_TPREL16_HA:
10455 case R_PPC64_TPREL16_DS:
10456 case R_PPC64_TPREL16_LO_DS:
10457 case R_PPC64_TPREL16_HIGHER:
10458 case R_PPC64_TPREL16_HIGHERA:
10459 case R_PPC64_TPREL16_HIGHEST:
10460 case R_PPC64_TPREL16_HIGHESTA:
e1918d23 10461 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 10462 if (info->shared)
10463 /* The TPREL16 relocs shouldn't really be used in shared
10464 libs as they will result in DT_TEXTREL being set, but
10465 support them anyway. */
10466 goto dodyn;
10467 break;
10468
10469 case R_PPC64_DTPREL16:
10470 case R_PPC64_DTPREL16_LO:
10471 case R_PPC64_DTPREL16_HI:
10472 case R_PPC64_DTPREL16_HA:
10473 case R_PPC64_DTPREL16_DS:
10474 case R_PPC64_DTPREL16_LO_DS:
10475 case R_PPC64_DTPREL16_HIGHER:
10476 case R_PPC64_DTPREL16_HIGHERA:
10477 case R_PPC64_DTPREL16_HIGHEST:
10478 case R_PPC64_DTPREL16_HIGHESTA:
e1918d23 10479 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 10480 break;
10481
e515b051
AM		 10482 case R_PPC64_DTPMOD64:
10483 relocation = 1;
10484 addend = 0;
10485 goto dodyn;
10486
411e1bfb 10487 case R_PPC64_TPREL64:
e1918d23 10488 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 10489 goto dodyn;
10490
10491 case R_PPC64_DTPREL64:
e1918d23 10492 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 10493 /* Fall thru */
10494
65f38f15
AM		 10495 /* Relocations that may need to be propagated if this is a
10496 dynamic object. */
04c9666a 10497 case R_PPC64_REL30:
65f38f15
AM		 10498 case R_PPC64_REL32:
10499 case R_PPC64_REL64:
10500 case R_PPC64_ADDR14:
10501 case R_PPC64_ADDR14_BRNTAKEN:
10502 case R_PPC64_ADDR14_BRTAKEN:
10503 case R_PPC64_ADDR16:
10504 case R_PPC64_ADDR16_DS:
10505 case R_PPC64_ADDR16_HA:
10506 case R_PPC64_ADDR16_HI:
10507 case R_PPC64_ADDR16_HIGHER:
10508 case R_PPC64_ADDR16_HIGHERA:
10509 case R_PPC64_ADDR16_HIGHEST:
10510 case R_PPC64_ADDR16_HIGHESTA:
10511 case R_PPC64_ADDR16_LO:
10512 case R_PPC64_ADDR16_LO_DS:
10513 case R_PPC64_ADDR24:
65f38f15
AM		 10514 case R_PPC64_ADDR32:
10515 case R_PPC64_ADDR64:
10516 case R_PPC64_UADDR16:
10517 case R_PPC64_UADDR32:
10518 case R_PPC64_UADDR64:
ec338859
AM		 10519 /* r_symndx will be zero only for relocs against symbols
10520 from removed linkonce sections, or sections discarded by
10521 a linker script. */
411e1bfb 10522 dodyn:
5d1634d7
AM		 10523 if (r_symndx == 0)
10524 break;
10525 /* Fall thru. */
10526
0b13192e 10527 dodyn2:
5d1634d7 10528 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 10529 break;
10530
41bd81ab
AM		 10531 if (NO_OPD_RELOCS && is_opd)
10532 break;
10533
65f38f15 10534 if ((info->shared
4e795f50 10535 && (h == NULL
039b3fef
AM		 10536 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10537 || h->elf.root.type != bfd_link_hash_undefweak)
411e1bfb 10538 && (MUST_BE_DYN_RELOC (r_type)
039b3fef 10539 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
f4656909
AM		 10540 || (ELIMINATE_COPY_RELOCS
10541 && !info->shared
65f38f15 10542 && h != NULL
039b3fef 10543 && h->elf.dynindx != -1
f5385ebf
AM		 10544 && !h->elf.non_got_ref
10545 && h->elf.def_dynamic
10546 && !h->elf.def_regular))
65f38f15
AM		 10547 {
10548 Elf_Internal_Rela outrel;
b34976b6 10549 bfd_boolean skip, relocate;
65f38f15 10550 asection *sreloc;
947216bf 10551 bfd_byte *loc;
1cf1f670 10552 bfd_vma out_off;
65f38f15
AM		 10553
10554 /* When generating a dynamic object, these relocations
10555 are copied into the output file to be resolved at run
10556 time. */
10557
b34976b6
AM		 10558 skip = FALSE;
10559 relocate = FALSE;
65f38f15 10560
1cf1f670
AM		 10561 out_off = _bfd_elf_section_offset (output_bfd, info,
10562 input_section, rel->r_offset);
10563 if (out_off == (bfd_vma) -1)
b34976b6 10564 skip = TRUE;
1cf1f670 10565 else if (out_off == (bfd_vma) -2)
b34976b6 10566 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 10567 out_off += (input_section->output_section->vma
10568 + input_section->output_offset);
10569 outrel.r_offset = out_off;
411e1bfb 10570 outrel.r_addend = rel->r_addend;
65f38f15 10571
1cf1f670
AM		 10572 /* Optimize unaligned reloc use. */
10573 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
10574 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
10575 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
10576 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
10577 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
10578 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
10579 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
10580 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
10581 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
10582
65f38f15 10583 if (skip)
0bb2d96a 10584 memset (&outrel, 0, sizeof outrel);
039b3fef 10585 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
0b13192e
AM		 10586 && !is_opd
10587 && r_type != R_PPC64_TOC)
039b3fef 10588 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
65f38f15
AM		 10589 else
10590 {
41bd81ab
AM		 10591 /* This symbol is local, or marked to become local,
10592 or this is an opd section reloc which must point
10593 at a local function. */
65f38f15 10594 outrel.r_addend += relocation;
e86ce104 10595 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 10596 {
3fad3c7c 10597 if (is_opd && h != NULL)
afbe61cf
AM		 10598 {
10599 /* Lie about opd entries. This case occurs
10600 when building shared libraries and we
10601 reference a function in another shared
3fad3c7c
AM		 10602 lib. The same thing happens for a weak
10603 definition in an application that's
10604 overridden by a strong definition in a
10605 shared lib. (I believe this is a generic
10606 bug in binutils handling of weak syms.)
10607 In these cases we won't use the opd
1e2f5b6e 10608 entry in this lib. */
b34976b6 10609 unresolved_reloc = FALSE;
afbe61cf 10610 }
65f38f15 10611 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 10612
10613 /* We need to relocate .opd contents for ld.so.
10614 Prelink also wants simple and consistent rules
10615 for relocs. This make all RELATIVE relocs have
10616 *r_offset equal to r_addend. */
10617 relocate = TRUE;
65f38f15
AM		 10618 }
10619 else
10620 {
10621 long indx = 0;
10622
41bd81ab 10623 if (bfd_is_abs_section (sec))
65f38f15
AM		 10624 ;
10625 else if (sec == NULL || sec->owner == NULL)
10626 {
10627 bfd_set_error (bfd_error_bad_value);
b34976b6 10628 return FALSE;
65f38f15
AM		 10629 }
10630 else
10631 {
10632 asection *osec;
10633
10634 osec = sec->output_section;
10635 indx = elf_section_data (osec)->dynindx;
10636
10637 /* We are turning this relocation into one
10638 against a section symbol, so subtract out
10639 the output section's address but not the
10640 offset of the input section in the output
10641 section. */
10642 outrel.r_addend -= osec->vma;
10643 }
10644
10645 outrel.r_info = ELF64_R_INFO (indx, r_type);
10646 }
10647 }
10648
10649 sreloc = elf_section_data (input_section)->sreloc;
10650 if (sreloc == NULL)
10651 abort ();
10652
947216bf
AM		 10653 loc = sreloc->contents;
10654 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 10655 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10656
10657 /* If this reloc is against an external symbol, it will
10658 be computed at runtime, so there's no need to do
81407a69
AM		 10659 anything now. However, for the sake of prelink ensure
10660 that the section contents are a known value. */
65f38f15 10661 if (! relocate)
81407a69
AM		 10662 {
10663 unresolved_reloc = FALSE;
10664 /* The value chosen here is quite arbitrary as ld.so
10665 ignores section contents except for the special
10666 case of .opd where the contents might be accessed
10667 before relocation. Choose zero, as that won't
10668 cause reloc overflow. */
10669 relocation = 0;
10670 addend = 0;
10671 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
10672 to improve backward compatibility with older
10673 versions of ld. */
10674 if (r_type == R_PPC64_ADDR64)
10675 addend = outrel.r_addend;
10676 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 10677 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 10678 addend = (input_section->output_section->vma
10679 + input_section->output_offset
10680 + rel->r_offset);
81407a69 10681 }
65f38f15 10682 }
5bd4f169
AM		 10683 break;
10684
65f38f15
AM		 10685 case R_PPC64_COPY:
10686 case R_PPC64_GLOB_DAT:
10687 case R_PPC64_JMP_SLOT:
10688 case R_PPC64_RELATIVE:
10689 /* We shouldn't ever see these dynamic relocs in relocatable
10690 files. */
ae9a127f 10691 /* Fall through. */
65f38f15
AM		 10692
10693 case R_PPC64_PLTGOT16:
10694 case R_PPC64_PLTGOT16_DS:
10695 case R_PPC64_PLTGOT16_HA:
10696 case R_PPC64_PLTGOT16_HI:
10697 case R_PPC64_PLTGOT16_LO:
10698 case R_PPC64_PLTGOT16_LO_DS:
10699 case R_PPC64_PLTREL32:
10700 case R_PPC64_PLTREL64:
10701 /* These ones haven't been implemented yet. */
10702
10703 (*_bfd_error_handler)
d003868e
AM		 10704 (_("%B: relocation %s is not supported for symbol %s."),
10705 input_bfd,
4ce794b7 10706 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 10707
10708 bfd_set_error (bfd_error_invalid_operation);
b34976b6 10709 ret = FALSE;
5bd4f169 10710 continue;
65f38f15 10711 }
5bd4f169 10712
65f38f15
AM		 10713 /* Do any further special processing. */
10714 switch (r_type)
10715 {
10716 default:
10717 break;
10718
10719 case R_PPC64_ADDR16_HA:
10720 case R_PPC64_ADDR16_HIGHERA:
10721 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM		 10722 case R_PPC64_GOT16_HA:
10723 case R_PPC64_PLTGOT16_HA:
65f38f15
AM		 10724 case R_PPC64_PLT16_HA:
10725 case R_PPC64_TOC16_HA:
10726 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 10727 case R_PPC64_TPREL16_HA:
10728 case R_PPC64_DTPREL16_HA:
10729 case R_PPC64_GOT_TLSGD16_HA:
10730 case R_PPC64_GOT_TLSLD16_HA:
10731 case R_PPC64_GOT_TPREL16_HA:
10732 case R_PPC64_GOT_DTPREL16_HA:
10733 case R_PPC64_TPREL16_HIGHER:
10734 case R_PPC64_TPREL16_HIGHERA:
10735 case R_PPC64_TPREL16_HIGHEST:
10736 case R_PPC64_TPREL16_HIGHESTA:
10737 case R_PPC64_DTPREL16_HIGHER:
10738 case R_PPC64_DTPREL16_HIGHERA:
10739 case R_PPC64_DTPREL16_HIGHEST:
10740 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 10741 /* It's just possible that this symbol is a weak symbol
10742 that's not actually defined anywhere. In that case,
10743 'sec' would be NULL, and we should leave the symbol
10744 alone (it will be set to zero elsewhere in the link). */
10745 if (sec != NULL)
e515b051
AM		 10746 /* Add 0x10000 if sign bit in 0:15 is set.
10747 Bits 0:15 are not used. */
10748 addend += 0x8000;
65f38f15
AM		 10749 break;
10750
10751 case R_PPC64_ADDR16_DS:
10752 case R_PPC64_ADDR16_LO_DS:
10753 case R_PPC64_GOT16_DS:
10754 case R_PPC64_GOT16_LO_DS:
10755 case R_PPC64_PLT16_LO_DS:
10756 case R_PPC64_SECTOFF_DS:
10757 case R_PPC64_SECTOFF_LO_DS:
10758 case R_PPC64_TOC16_DS:
10759 case R_PPC64_TOC16_LO_DS:
10760 case R_PPC64_PLTGOT16_DS:
10761 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 10762 case R_PPC64_GOT_TPREL16_DS:
10763 case R_PPC64_GOT_TPREL16_LO_DS:
10764 case R_PPC64_GOT_DTPREL16_DS:
10765 case R_PPC64_GOT_DTPREL16_LO_DS:
10766 case R_PPC64_TPREL16_DS:
10767 case R_PPC64_TPREL16_LO_DS:
10768 case R_PPC64_DTPREL16_DS:
10769 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 10770 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
10771 mask = 3;
10772 /* If this reloc is against an lq insn, then the value must be
10773 a multiple of 16. This is somewhat of a hack, but the
10774 "correct" way to do this by defining _DQ forms of all the
10775 _DS relocs bloats all reloc switches in this file. It
10776 doesn't seem to make much sense to use any of these relocs
10777 in data, so testing the insn should be safe. */
494dac0c 10778 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 10779 mask = 15;
10780 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 10781 {
10782 (*_bfd_error_handler)
d003868e
AM		 10783 (_("%B: error: relocation %s not a multiple of %d"),
10784 input_bfd,
4ce794b7 10785 ppc64_elf_howto_table[r_type]->name,
adadcc0c 10786 mask + 1);
65f38f15 10787 bfd_set_error (bfd_error_bad_value);
b34976b6 10788 ret = FALSE;
65f38f15
AM		 10789 continue;
10790 }
10791 break;
5bd4f169
AM		 10792 }
10793
239e1f3a
AM		 10794 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
10795 because such sections are not SEC_ALLOC and thus ld.so will
10796 not process them. */
65f38f15 10797 if (unresolved_reloc
239e1f3a 10798 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 10799 && h->elf.def_dynamic))
9c07fe7c
AM		 10800 {
10801 (*_bfd_error_handler)
d003868e
AM		 10802 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
10803 input_bfd,
10804 input_section,
9c07fe7c 10805 (long) rel->r_offset,
7b609f53 10806 ppc64_elf_howto_table[(int) r_type]->name,
039b3fef 10807 h->elf.root.root.string);
b34976b6 10808 ret = FALSE;
9c07fe7c 10809 }
5bd4f169 10810
65f38f15 10811 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 10812 input_bfd,
10813 input_section,
10814 contents,
411e1bfb 10815 rel->r_offset,
5bd4f169
AM		 10816 relocation,
10817 addend);
10818
ef60b7ff 10819 if (r != bfd_reloc_ok)
5bd4f169 10820 {
cd27b276
AM		 10821 if (sym_name == NULL)
10822 sym_name = "(null)";
10823 if (r == bfd_reloc_overflow)
5bd4f169 10824 {
cd27b276
AM		 10825 if (warned)
10826 continue;
10827 if (h != NULL
039b3fef 10828 && h->elf.root.type == bfd_link_hash_undefweak
4ce794b7 10829 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 10830 {
10831 /* Assume this is a call protected by other code that
10832 detects the symbol is undefined. If this is the case,
10833 we can safely ignore the overflow. If not, the
10834 program is hosed anyway, and a little warning isn't
10835 going to help. */
10836
10837 continue;
10838 }
10839
ef60b7ff 10840 if (!((*info->callbacks->reloc_overflow)
dfeffb9f
L		 10841 (info, (h ? &h->elf.root : NULL), sym_name,
10842 ppc64_elf_howto_table[r_type]->name,
411e1bfb 10843 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 10844 return FALSE;
ef60b7ff
AM		 10845 }
10846 else
10847 {
10848 (*_bfd_error_handler)
d003868e
AM		 10849 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
10850 input_bfd,
10851 input_section,
7b609f53 10852 (long) rel->r_offset,
4ce794b7 10853 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 10854 sym_name,
10855 (int) r);
b34976b6 10856 ret = FALSE;
ef60b7ff 10857 }
5bd4f169 10858 }
5bd4f169
AM		 10859 }
10860
645ea6a9
AM		 10861 /* If we're emitting relocations, then shortly after this function
10862 returns, reloc offsets and addends for this section will be
10863 adjusted. Worse, reloc symbol indices will be for the output
8860955f
AM		 10864 file rather than the input. Save a copy of the relocs for
10865 opd_entry_value. */
10866 if (is_opd && info->emitrelocations)
10867 {
10868 bfd_size_type amt;
10869 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
10870 rel = bfd_alloc (input_bfd, amt);
10871 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
10872 ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
10873 if (rel == NULL)
10874 return FALSE;
10875 memcpy (rel, relocs, amt);
10876 }
5bd4f169
AM		 10877 return ret;
10878}
10879
754021d0
AM		 10880/* Adjust the value of any local symbols in opd sections. */
10881
10882static bfd_boolean
10883ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
10884 const char *name ATTRIBUTE_UNUSED,
10885 Elf_Internal_Sym *elfsym,
10886 asection *input_sec,
10887 struct elf_link_hash_entry *h)
10888{
4025353c 10889 long *opd_adjust, adjust;
754021d0
AM		 10890 bfd_vma value;
10891
4025353c
AM		 10892 if (h != NULL)
10893 return TRUE;
10894
10895 opd_adjust = get_opd_info (input_sec);
10896 if (opd_adjust == NULL)
754021d0
AM		 10897 return TRUE;
10898
10899 value = elfsym->st_value - input_sec->output_offset;
10900 if (!info->relocatable)
10901 value -= input_sec->output_section->vma;
10902
3f764659 10903 adjust = opd_adjust[value / 8];
4025353c
AM		 10904 if (adjust == -1)
10905 elfsym->st_value = 0;
10906 else
10907 elfsym->st_value += adjust;
754021d0
AM		 10908 return TRUE;
10909}
10910
5bd4f169
AM		 10911/* Finish up dynamic symbol handling. We set the contents of various
10912 dynamic sections here. */
10913
b34976b6 10914static bfd_boolean
4ce794b7
AM		 10915ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
10916 struct bfd_link_info *info,
10917 struct elf_link_hash_entry *h,
10918 Elf_Internal_Sym *sym)
5bd4f169 10919{
65f38f15 10920 struct ppc_link_hash_table *htab;
5bd4f169 10921 bfd *dynobj;
8387904d
AM		 10922 struct plt_entry *ent;
10923 Elf_Internal_Rela rela;
10924 bfd_byte *loc;
5bd4f169 10925
65f38f15
AM		 10926 htab = ppc_hash_table (info);
10927 dynobj = htab->elf.dynobj;
5bd4f169 10928
8387904d
AM		 10929 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10930 if (ent->plt.offset != (bfd_vma) -1)
10931 {
10932 /* This symbol has an entry in the procedure linkage
10933 table. Set it up. */
10934
10935 if (htab->plt == NULL
10936 || htab->relplt == NULL
10937 || htab->glink == NULL)
10938 abort ();
10939
10940 /* Create a JMP_SLOT reloc to inform the dynamic linker to
10941 fill in the PLT entry. */
10942 rela.r_offset = (htab->plt->output_section->vma
10943 + htab->plt->output_offset
10944 + ent->plt.offset);
10945 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
10946 rela.r_addend = ent->addend;
10947
10948 loc = htab->relplt->contents;
10949 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
10950 * sizeof (Elf64_External_Rela));
10951 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
10952 }
5bd4f169 10953
f5385ebf 10954 if (h->needs_copy)
5bd4f169 10955 {
5bd4f169 10956 Elf_Internal_Rela rela;
947216bf 10957 bfd_byte *loc;
5bd4f169 10958
65f38f15 10959 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 10960
65f38f15
AM		 10961 if (h->dynindx == -1
10962 || (h->root.type != bfd_link_hash_defined
10963 && h->root.type != bfd_link_hash_defweak)
4ce794b7 10964 || htab->relbss == NULL)
65f38f15 10965 abort ();
5bd4f169
AM		 10966
10967 rela.r_offset = (h->root.u.def.value
10968 + h->root.u.def.section->output_section->vma
10969 + h->root.u.def.section->output_offset);
10970 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
10971 rela.r_addend = 0;
4ce794b7
AM		 10972 loc = htab->relbss->contents;
10973 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 10974 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 10975 }
10976
5bd4f169
AM		 10977 /* Mark some specially defined symbols as absolute. */
10978 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
10979 sym->st_shndx = SHN_ABS;
10980
b34976b6 10981 return TRUE;
5bd4f169
AM		 10982}
10983
65f38f15
AM		 10984/* Used to decide how to sort relocs in an optimal manner for the
10985 dynamic linker, before writing them out. */
10986
10987static enum elf_reloc_type_class
4ce794b7 10988ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 10989{
04c9666a 10990 enum elf_ppc64_reloc_type r_type;
a33d1f77 10991
4ce794b7 10992 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 10993 switch (r_type)
65f38f15
AM		 10994 {
10995 case R_PPC64_RELATIVE:
10996 return reloc_class_relative;
10997 case R_PPC64_JMP_SLOT:
10998 return reloc_class_plt;
10999 case R_PPC64_COPY:
11000 return reloc_class_copy;
11001 default:
11002 return reloc_class_normal;
11003 }
11004}
11005
5bd4f169
AM		 11006/* Finish up the dynamic sections. */
11007
b34976b6 11008static bfd_boolean
4ce794b7
AM		 11009ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
11010 struct bfd_link_info *info)
5bd4f169 11011{
65f38f15
AM		 11012 struct ppc_link_hash_table *htab;
11013 bfd *dynobj;
5bd4f169 11014 asection *sdyn;
5bd4f169 11015
65f38f15
AM		 11016 htab = ppc_hash_table (info);
11017 dynobj = htab->elf.dynobj;
5bd4f169
AM		 11018 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
11019
65f38f15 11020 if (htab->elf.dynamic_sections_created)
5bd4f169 11021 {
5bd4f169
AM		 11022 Elf64_External_Dyn *dyncon, *dynconend;
11023
4ce794b7 11024 if (sdyn == NULL || htab->got == NULL)
65f38f15 11025 abort ();
5bd4f169
AM		 11026
11027 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 11028 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM		 11029 for (; dyncon < dynconend; dyncon++)
11030 {
11031 Elf_Internal_Dyn dyn;
19397422 11032 asection *s;
5bd4f169
AM		 11033
11034 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
11035
11036 switch (dyn.d_tag)
11037 {
65f38f15
AM		 11038 default:
11039 continue;
5bd4f169 11040
5d1634d7 11041 case DT_PPC64_GLINK:
4ce794b7 11042 s = htab->glink;
6348e046 11043 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 11044 /* We stupidly defined DT_PPC64_GLINK to be the start
11045 of glink rather than the first entry point, which is
11046 what ld.so needs, and now have a bigger stub to
11047 support automatic multiple TOCs. */
11048 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 11049 break;
11050
19397422
AM		 11051 case DT_PPC64_OPD:
11052 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 11053 if (s == NULL)
11054 continue;
11055 dyn.d_un.d_ptr = s->vma;
19397422
AM		 11056 break;
11057
11058 case DT_PPC64_OPDSZ:
11059 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 11060 if (s == NULL)
11061 continue;
eea6121a 11062 dyn.d_un.d_val = s->size;
19397422
AM		 11063 break;
11064
65f38f15 11065 case DT_PLTGOT:
4ce794b7 11066 s = htab->plt;
6348e046 11067 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 11068 break;
11069
11070 case DT_JMPREL:
4ce794b7 11071 s = htab->relplt;
6348e046 11072 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 11073 break;
5bd4f169 11074
65f38f15 11075 case DT_PLTRELSZ:
eea6121a 11076 dyn.d_un.d_val = htab->relplt->size;
5d1634d7
AM		 11077 break;
11078
11079 case DT_RELASZ:
11080 /* Don't count procedure linkage table relocs in the
11081 overall reloc count. */
4ce794b7 11082 s = htab->relplt;
6348e046
AM		 11083 if (s == NULL)
11084 continue;
eea6121a 11085 dyn.d_un.d_val -= s->size;
6348e046
AM		 11086 break;
11087
11088 case DT_RELA:
11089 /* We may not be using the standard ELF linker script.
11090 If .rela.plt is the first .rela section, we adjust
11091 DT_RELA to not include it. */
4ce794b7 11092 s = htab->relplt;
6348e046
AM		 11093 if (s == NULL)
11094 continue;
11095 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
11096 continue;
eea6121a 11097 dyn.d_un.d_ptr += s->size;
65f38f15 11098 break;
5bd4f169 11099 }
5bd4f169 11100
65f38f15 11101 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 11102 }
5bd4f169
AM		 11103 }
11104
eea6121a 11105 if (htab->got != NULL && htab->got->size != 0)
5d1634d7
AM		 11106 {
11107 /* Fill in the first entry in the global offset table.
11108 We use it to hold the link-time TOCbase. */
11109 bfd_put_64 (output_bfd,
60ee0d4a 11110 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 11111 htab->got->contents);
5d1634d7
AM		 11112
11113 /* Set .got entry size. */
4ce794b7 11114 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 11115 }
11116
eea6121a 11117 if (htab->plt != NULL && htab->plt->size != 0)
5d1634d7
AM		 11118 {
11119 /* Set .plt entry size. */
4ce794b7 11120 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 11121 = PLT_ENTRY_SIZE;
11122 }
11123
e717da7e 11124 /* We need to handle writing out multiple GOT sections ourselves,
7b53ace3
AM		 11125 since we didn't add them to DYNOBJ. We know dynobj is the first
11126 bfd. */
e717da7e
AM		 11127 while ((dynobj = dynobj->link_next) != NULL)
11128 {
11129 asection *s;
7b53ace3 11130
ee75fd95 11131 if (!is_ppc64_elf_target (dynobj->xvec))
7b53ace3
AM		 11132 continue;
11133
e717da7e
AM		 11134 s = ppc64_elf_tdata (dynobj)->got;
11135 if (s != NULL
eea6121a 11136 && s->size != 0
e717da7e
AM		 11137 && s->output_section != bfd_abs_section_ptr
11138 && !bfd_set_section_contents (output_bfd, s->output_section,
11139 s->contents, s->output_offset,
eea6121a 11140 s->size))
e717da7e
AM		 11141 return FALSE;
11142 s = ppc64_elf_tdata (dynobj)->relgot;
11143 if (s != NULL
eea6121a 11144 && s->size != 0
e717da7e
AM		 11145 && s->output_section != bfd_abs_section_ptr
11146 && !bfd_set_section_contents (output_bfd, s->output_section,
11147 s->contents, s->output_offset,
eea6121a 11148 s->size))
e717da7e
AM		 11149 return FALSE;
11150 }
f6c52c13 11151
b34976b6 11152 return TRUE;
5bd4f169
AM		 11153}
11154
5bd4f169 11155#include "elf64-target.h"
GDB Binutils - Deliverables
This page took 0.972119 seconds and 4 git commands to generate.