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[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
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5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
86bbe32f 2 Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
5bd4f169
AM		 3 Written by Linus Nordberg, Swox AB <info@swox.com>,
4 based on elf32-ppc.c by Ian Lance Taylor.
d37c89e5 5 Largely rewritten by Alan Modra <amodra@bigpond.net.au>
5bd4f169 6
ae9a127f 7 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 8
ae9a127f
NC		 9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
5bd4f169 13
ae9a127f
NC		 14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
5bd4f169 18
4ce794b7
AM		 19 You should have received a copy of the GNU General Public License along
20 with this program; if not, write to the Free Software Foundation, Inc.,
21 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
5bd4f169 22
4ce794b7
AM		 23/* The 64-bit PowerPC ELF ABI may be found at
24 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
25 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
5bd4f169
AM		 26
27#include "bfd.h"
28#include "sysdep.h"
29#include "bfdlink.h"
30#include "libbfd.h"
31#include "elf-bfd.h"
04c9666a 32#include "elf/ppc64.h"
5d1634d7 33#include "elf64-ppc.h"
5bd4f169 34
805fc799 35static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 36 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 37static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 38 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 39static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 40 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 41static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 42 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 43static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 44 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 45static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 46 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 47static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 48 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 49static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
5bd4f169
AM		 51
52
ad8e1ba5
AM		 53#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
54#define TARGET_LITTLE_NAME "elf64-powerpcle"
55#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
56#define TARGET_BIG_NAME "elf64-powerpc"
57#define ELF_ARCH bfd_arch_powerpc
58#define ELF_MACHINE_CODE EM_PPC64
59#define ELF_MAXPAGESIZE 0x10000
60#define elf_info_to_howto ppc64_elf_info_to_howto
61
62#define elf_backend_want_got_sym 0
63#define elf_backend_want_plt_sym 0
64#define elf_backend_plt_alignment 3
65#define elf_backend_plt_not_loaded 1
66#define elf_backend_got_symbol_offset 0
67#define elf_backend_got_header_size 8
ad8e1ba5
AM		 68#define elf_backend_can_gc_sections 1
69#define elf_backend_can_refcount 1
70#define elf_backend_rela_normal 1
71
e717da7e 72#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5
AM		 73#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
74#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
75#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
76#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
77#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
78
79#define elf_backend_object_p ppc64_elf_object_p
d37c89e5
AM		 80#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
81#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
ad8e1ba5
AM		 82#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
83#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
84#define elf_backend_check_relocs ppc64_elf_check_relocs
85#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
86#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
87#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
88#define elf_backend_hide_symbol ppc64_elf_hide_symbol
89#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
90#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
91#define elf_backend_relocate_section ppc64_elf_relocate_section
92#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
93#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
94#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
2f89ff8d 95#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 96
5bd4f169
AM		 97/* The name of the dynamic interpreter. This is put in the .interp
98 section. */
99#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
100
101/* The size in bytes of an entry in the procedure linkage table. */
102#define PLT_ENTRY_SIZE 24
103
104/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 105#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM		 106
107/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 108#define TOC_BASE_OFF 0x8000
109
110/* Offset of tp and dtp pointers from start of TLS block. */
111#define TP_OFFSET 0x7000
112#define DTP_OFFSET 0x8000
5bd4f169 113
ad8e1ba5
AM		 114/* .plt call stub instructions. The normal stub is like this, but
115 sometimes the .plt entry crosses a 64k boundary and we need to
116 insert an addis to adjust r12. */
117#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM		 118#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
119#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
120#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
121#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
122#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
123 /* ld %r11,xxx+16@l(%r12) */
124#define BCTR 0x4e800420 /* bctr */
125
5d1634d7 126
ad8e1ba5
AM		 127#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
128#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
129
130#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
131
132/* glink call stub instructions. We enter with the index in R0, and the
133 address of glink entry in CTR. From that, we can calculate PLT0. */
134#define GLINK_CALL_STUB_SIZE (16*4)
135#define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
136#define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
137#define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
138#define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
139#define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
140#define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
141#define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
142 /* sub %r12,%r12,%r11 */
143#define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
144#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
145 /* ld %r11,xxx@l(%r12) */
146#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
147 /* ld %r2,8(%r12) */
148 /* mtctr %r11 */
149 /* ld %r11,16(%r12) */
150 /* bctr */
5d1634d7
AM		 151
152/* Pad with this. */
153#define NOP 0x60000000
154
721956f4
AM		 155/* Some other nops. */
156#define CROR_151515 0x4def7b82
157#define CROR_313131 0x4ffffb82
158
cedb70c5 159/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 160#define LI_R0_0 0x38000000 /* li %r0,0 */
161#define B_DOT 0x48000000 /* b . */
162
163/* After that, we need two instructions to load the index, followed by
164 a branch. */
165#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 166#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 167
82bd7b59
AM		 168/* Instructions to save and restore floating point regs. */
169#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
170#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
171#define BLR 0x4e800020 /* blr */
172
41bd81ab
AM		 173/* Since .opd is an array of descriptors and each entry will end up
174 with identical R_PPC64_RELATIVE relocs, there is really no need to
175 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 176 relocate .opd without reloc entries. */
41bd81ab
AM		 177#ifndef NO_OPD_RELOCS
178#define NO_OPD_RELOCS 0
179#endif
5bd4f169 180\f
f5e87a1d 181#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 182
5bd4f169 183/* Relocation HOWTO's. */
04c9666a 184static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 185
186static reloc_howto_type ppc64_elf_howto_raw[] = {
187 /* This reloc does nothing. */
188 HOWTO (R_PPC64_NONE, /* type */
189 0, /* rightshift */
411e1bfb
AM		 190 2, /* size (0 = byte, 1 = short, 2 = long) */
191 32, /* bitsize */
b34976b6 192 FALSE, /* pc_relative */
5bd4f169 193 0, /* bitpos */
f5e87a1d 194 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 195 bfd_elf_generic_reloc, /* special_function */
196 "R_PPC64_NONE", /* name */
b34976b6 197 FALSE, /* partial_inplace */
d006db6c 198 0, /* src_mask */
5bd4f169 199 0, /* dst_mask */
b34976b6 200 FALSE), /* pcrel_offset */
5bd4f169
AM		 201
202 /* A standard 32 bit relocation. */
203 HOWTO (R_PPC64_ADDR32, /* type */
204 0, /* rightshift */
205 2, /* size (0 = byte, 1 = short, 2 = long) */
206 32, /* bitsize */
b34976b6 207 FALSE, /* pc_relative */
5bd4f169
AM		 208 0, /* bitpos */
209 complain_overflow_bitfield, /* complain_on_overflow */
210 bfd_elf_generic_reloc, /* special_function */
211 "R_PPC64_ADDR32", /* name */
b34976b6 212 FALSE, /* partial_inplace */
5bd4f169
AM		 213 0, /* src_mask */
214 0xffffffff, /* dst_mask */
b34976b6 215 FALSE), /* pcrel_offset */
5bd4f169
AM		 216
217 /* An absolute 26 bit branch; the lower two bits must be zero.
218 FIXME: we don't check that, we just clear them. */
219 HOWTO (R_PPC64_ADDR24, /* type */
220 0, /* rightshift */
221 2, /* size (0 = byte, 1 = short, 2 = long) */
222 26, /* 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_ADDR24", /* name */
b34976b6 228 FALSE, /* partial_inplace */
d006db6c 229 0, /* src_mask */
f5e87a1d 230 0x03fffffc, /* dst_mask */
b34976b6 231 FALSE), /* pcrel_offset */
5bd4f169
AM		 232
233 /* A standard 16 bit relocation. */
234 HOWTO (R_PPC64_ADDR16, /* type */
235 0, /* rightshift */
236 1, /* size (0 = byte, 1 = short, 2 = long) */
237 16, /* bitsize */
b34976b6 238 FALSE, /* pc_relative */
5bd4f169
AM		 239 0, /* bitpos */
240 complain_overflow_bitfield, /* complain_on_overflow */
241 bfd_elf_generic_reloc, /* special_function */
242 "R_PPC64_ADDR16", /* name */
b34976b6 243 FALSE, /* partial_inplace */
5bd4f169
AM		 244 0, /* src_mask */
245 0xffff, /* dst_mask */
b34976b6 246 FALSE), /* pcrel_offset */
5bd4f169
AM		 247
248 /* A 16 bit relocation without overflow. */
249 HOWTO (R_PPC64_ADDR16_LO, /* type */
250 0, /* rightshift */
251 1, /* size (0 = byte, 1 = short, 2 = long) */
252 16, /* bitsize */
b34976b6 253 FALSE, /* pc_relative */
5bd4f169
AM		 254 0, /* bitpos */
255 complain_overflow_dont,/* complain_on_overflow */
256 bfd_elf_generic_reloc, /* special_function */
257 "R_PPC64_ADDR16_LO", /* name */
b34976b6 258 FALSE, /* partial_inplace */
5bd4f169
AM		 259 0, /* src_mask */
260 0xffff, /* dst_mask */
b34976b6 261 FALSE), /* pcrel_offset */
5bd4f169
AM		 262
263 /* Bits 16-31 of an address. */
264 HOWTO (R_PPC64_ADDR16_HI, /* type */
265 16, /* rightshift */
266 1, /* size (0 = byte, 1 = short, 2 = long) */
267 16, /* bitsize */
b34976b6 268 FALSE, /* pc_relative */
5bd4f169
AM		 269 0, /* bitpos */
270 complain_overflow_dont, /* complain_on_overflow */
271 bfd_elf_generic_reloc, /* special_function */
272 "R_PPC64_ADDR16_HI", /* name */
b34976b6 273 FALSE, /* partial_inplace */
5bd4f169
AM		 274 0, /* src_mask */
275 0xffff, /* dst_mask */
b34976b6 276 FALSE), /* pcrel_offset */
5bd4f169
AM		 277
278 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
279 bits, treated as a signed number, is negative. */
280 HOWTO (R_PPC64_ADDR16_HA, /* 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 */
805fc799 287 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 288 "R_PPC64_ADDR16_HA", /* 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 /* An absolute 16 bit branch; the lower two bits must be zero.
295 FIXME: we don't check that, we just clear them. */
296 HOWTO (R_PPC64_ADDR14, /* type */
297 0, /* rightshift */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
299 16, /* bitsize */
b34976b6 300 FALSE, /* pc_relative */
5bd4f169
AM		 301 0, /* bitpos */
302 complain_overflow_bitfield, /* complain_on_overflow */
303 bfd_elf_generic_reloc, /* special_function */
304 "R_PPC64_ADDR14", /* name */
b34976b6 305 FALSE, /* partial_inplace */
d006db6c 306 0, /* src_mask */
f5e87a1d 307 0x0000fffc, /* dst_mask */
b34976b6 308 FALSE), /* pcrel_offset */
5bd4f169
AM		 309
310 /* An absolute 16 bit branch, for which bit 10 should be set to
311 indicate that the branch is expected to be taken. The lower two
312 bits must be zero. */
313 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
314 0, /* rightshift */
315 2, /* size (0 = byte, 1 = short, 2 = long) */
316 16, /* bitsize */
b34976b6 317 FALSE, /* pc_relative */
5bd4f169
AM		 318 0, /* bitpos */
319 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 320 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 321 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 322 FALSE, /* partial_inplace */
d006db6c 323 0, /* src_mask */
f5e87a1d 324 0x0000fffc, /* dst_mask */
b34976b6 325 FALSE), /* pcrel_offset */
5bd4f169
AM		 326
327 /* An absolute 16 bit branch, for which bit 10 should be set to
328 indicate that the branch is not expected to be taken. The lower
329 two bits must be zero. */
330 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
331 0, /* rightshift */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
b34976b6 334 FALSE, /* pc_relative */
5bd4f169
AM		 335 0, /* bitpos */
336 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 337 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 338 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 339 FALSE, /* partial_inplace */
d006db6c 340 0, /* src_mask */
f5e87a1d 341 0x0000fffc, /* dst_mask */
b34976b6 342 FALSE), /* pcrel_offset */
5bd4f169
AM		 343
344 /* A relative 26 bit branch; the lower two bits must be zero. */
345 HOWTO (R_PPC64_REL24, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 26, /* bitsize */
b34976b6 349 TRUE, /* pc_relative */
5bd4f169
AM		 350 0, /* bitpos */
351 complain_overflow_signed, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_PPC64_REL24", /* name */
b34976b6 354 FALSE, /* partial_inplace */
d006db6c 355 0, /* src_mask */
f5e87a1d 356 0x03fffffc, /* dst_mask */
b34976b6 357 TRUE), /* pcrel_offset */
5bd4f169
AM		 358
359 /* A relative 16 bit branch; the lower two bits must be zero. */
360 HOWTO (R_PPC64_REL14, /* type */
361 0, /* rightshift */
362 2, /* size (0 = byte, 1 = short, 2 = long) */
363 16, /* bitsize */
b34976b6 364 TRUE, /* pc_relative */
5bd4f169
AM		 365 0, /* bitpos */
366 complain_overflow_signed, /* complain_on_overflow */
367 bfd_elf_generic_reloc, /* special_function */
368 "R_PPC64_REL14", /* name */
b34976b6 369 FALSE, /* partial_inplace */
d006db6c 370 0, /* src_mask */
f5e87a1d 371 0x0000fffc, /* dst_mask */
b34976b6 372 TRUE), /* pcrel_offset */
5bd4f169
AM		 373
374 /* A relative 16 bit branch. Bit 10 should be set to indicate that
375 the branch is expected to be taken. The lower two bits must be
376 zero. */
377 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
378 0, /* rightshift */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
380 16, /* bitsize */
b34976b6 381 TRUE, /* pc_relative */
5bd4f169
AM		 382 0, /* bitpos */
383 complain_overflow_signed, /* complain_on_overflow */
805fc799 384 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 385 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 386 FALSE, /* partial_inplace */
d006db6c 387 0, /* src_mask */
f5e87a1d 388 0x0000fffc, /* dst_mask */
b34976b6 389 TRUE), /* pcrel_offset */
5bd4f169
AM		 390
391 /* A relative 16 bit branch. Bit 10 should be set to indicate that
392 the branch is not expected to be taken. The lower two bits must
393 be zero. */
394 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
395 0, /* rightshift */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
397 16, /* bitsize */
b34976b6 398 TRUE, /* pc_relative */
5bd4f169
AM		 399 0, /* bitpos */
400 complain_overflow_signed, /* complain_on_overflow */
805fc799 401 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 402 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 403 FALSE, /* partial_inplace */
d006db6c 404 0, /* src_mask */
f5e87a1d 405 0x0000fffc, /* dst_mask */
b34976b6 406 TRUE), /* pcrel_offset */
5bd4f169
AM		 407
408 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
409 symbol. */
410 HOWTO (R_PPC64_GOT16, /* type */
411 0, /* rightshift */
412 1, /* size (0 = byte, 1 = short, 2 = long) */
413 16, /* bitsize */
b34976b6 414 FALSE, /* pc_relative */
5bd4f169
AM		 415 0, /* bitpos */
416 complain_overflow_signed, /* complain_on_overflow */
805fc799 417 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 418 "R_PPC64_GOT16", /* name */
b34976b6 419 FALSE, /* partial_inplace */
5bd4f169
AM		 420 0, /* src_mask */
421 0xffff, /* dst_mask */
b34976b6 422 FALSE), /* pcrel_offset */
5bd4f169
AM		 423
424 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
425 the symbol. */
426 HOWTO (R_PPC64_GOT16_LO, /* 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_dont, /* complain_on_overflow */
805fc799 433 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 434 "R_PPC64_GOT16_LO", /* 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_HI, but referring to the GOT table entry for
441 the symbol. */
442 HOWTO (R_PPC64_GOT16_HI, /* type */
443 16, /* 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_HI", /* 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_HA, but referring to the GOT table entry for
457 the symbol. */
458 HOWTO (R_PPC64_GOT16_HA, /* 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_HA", /* 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 /* This is used only by the dynamic linker. The symbol should exist
473 both in the object being run and in some shared library. The
474 dynamic linker copies the data addressed by the symbol from the
475 shared library into the object, because the object being
476 run has to have the data at some particular address. */
477 HOWTO (R_PPC64_COPY, /* type */
478 0, /* rightshift */
f5e87a1d
AM		 479 0, /* this one is variable size */
480 0, /* bitsize */
b34976b6 481 FALSE, /* pc_relative */
5bd4f169 482 0, /* bitpos */
f5e87a1d
AM		 483 complain_overflow_dont, /* complain_on_overflow */
484 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 485 "R_PPC64_COPY", /* name */
b34976b6 486 FALSE, /* partial_inplace */
5bd4f169
AM		 487 0, /* src_mask */
488 0, /* dst_mask */
b34976b6 489 FALSE), /* pcrel_offset */
5bd4f169
AM		 490
491 /* Like R_PPC64_ADDR64, but used when setting global offset table
492 entries. */
493 HOWTO (R_PPC64_GLOB_DAT, /* type */
494 0, /* rightshift */
495 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
496 64, /* bitsize */
b34976b6 497 FALSE, /* pc_relative */
5bd4f169
AM		 498 0, /* bitpos */
499 complain_overflow_dont, /* complain_on_overflow */
805fc799 500 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 501 "R_PPC64_GLOB_DAT", /* name */
b34976b6 502 FALSE, /* partial_inplace */
5bd4f169 503 0, /* src_mask */
f5e87a1d 504 ONES (64), /* dst_mask */
b34976b6 505 FALSE), /* pcrel_offset */
5bd4f169
AM		 506
507 /* Created by the link editor. Marks a procedure linkage table
508 entry for a symbol. */
509 HOWTO (R_PPC64_JMP_SLOT, /* type */
510 0, /* rightshift */
511 0, /* size (0 = byte, 1 = short, 2 = long) */
512 0, /* 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_JMP_SLOT", /* name */
b34976b6 518 FALSE, /* partial_inplace */
5bd4f169
AM		 519 0, /* src_mask */
520 0, /* dst_mask */
b34976b6 521 FALSE), /* pcrel_offset */
5bd4f169
AM		 522
523 /* Used only by the dynamic linker. When the object is run, this
524 doubleword64 is set to the load address of the object, plus the
525 addend. */
526 HOWTO (R_PPC64_RELATIVE, /* type */
527 0, /* rightshift */
528 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
529 64, /* bitsize */
b34976b6 530 FALSE, /* pc_relative */
5bd4f169
AM		 531 0, /* bitpos */
532 complain_overflow_dont, /* complain_on_overflow */
533 bfd_elf_generic_reloc, /* special_function */
534 "R_PPC64_RELATIVE", /* name */
b34976b6 535 FALSE, /* partial_inplace */
5bd4f169 536 0, /* src_mask */
f5e87a1d 537 ONES (64), /* dst_mask */
b34976b6 538 FALSE), /* pcrel_offset */
5bd4f169
AM		 539
540 /* Like R_PPC64_ADDR32, but may be unaligned. */
541 HOWTO (R_PPC64_UADDR32, /* type */
542 0, /* rightshift */
543 2, /* size (0 = byte, 1 = short, 2 = long) */
544 32, /* bitsize */
b34976b6 545 FALSE, /* pc_relative */
5bd4f169
AM		 546 0, /* bitpos */
547 complain_overflow_bitfield, /* complain_on_overflow */
548 bfd_elf_generic_reloc, /* special_function */
549 "R_PPC64_UADDR32", /* name */
b34976b6 550 FALSE, /* partial_inplace */
5bd4f169
AM		 551 0, /* src_mask */
552 0xffffffff, /* dst_mask */
b34976b6 553 FALSE), /* pcrel_offset */
5bd4f169
AM		 554
555 /* Like R_PPC64_ADDR16, but may be unaligned. */
556 HOWTO (R_PPC64_UADDR16, /* type */
557 0, /* rightshift */
558 1, /* size (0 = byte, 1 = short, 2 = long) */
559 16, /* bitsize */
b34976b6 560 FALSE, /* pc_relative */
5bd4f169
AM		 561 0, /* bitpos */
562 complain_overflow_bitfield, /* complain_on_overflow */
563 bfd_elf_generic_reloc, /* special_function */
564 "R_PPC64_UADDR16", /* name */
b34976b6 565 FALSE, /* partial_inplace */
5bd4f169
AM		 566 0, /* src_mask */
567 0xffff, /* dst_mask */
b34976b6 568 FALSE), /* pcrel_offset */
5bd4f169
AM		 569
570 /* 32-bit PC relative. */
571 HOWTO (R_PPC64_REL32, /* type */
572 0, /* rightshift */
573 2, /* size (0 = byte, 1 = short, 2 = long) */
574 32, /* bitsize */
b34976b6 575 TRUE, /* pc_relative */
5bd4f169 576 0, /* bitpos */
cedb70c5 577 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM		 578 complain_overflow_signed, /* complain_on_overflow */
579 bfd_elf_generic_reloc, /* special_function */
580 "R_PPC64_REL32", /* name */
b34976b6 581 FALSE, /* partial_inplace */
5bd4f169
AM		 582 0, /* src_mask */
583 0xffffffff, /* dst_mask */
b34976b6 584 TRUE), /* pcrel_offset */
5bd4f169 585
10ed1bba 586 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 587 HOWTO (R_PPC64_PLT32, /* type */
588 0, /* rightshift */
589 2, /* size (0 = byte, 1 = short, 2 = long) */
590 32, /* bitsize */
b34976b6 591 FALSE, /* pc_relative */
5bd4f169
AM		 592 0, /* bitpos */
593 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 594 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 595 "R_PPC64_PLT32", /* name */
b34976b6 596 FALSE, /* partial_inplace */
5bd4f169 597 0, /* src_mask */
f5e87a1d 598 0xffffffff, /* dst_mask */
b34976b6 599 FALSE), /* pcrel_offset */
5bd4f169
AM		 600
601 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
602 FIXME: R_PPC64_PLTREL32 not supported. */
603 HOWTO (R_PPC64_PLTREL32, /* type */
604 0, /* rightshift */
605 2, /* size (0 = byte, 1 = short, 2 = long) */
606 32, /* bitsize */
b34976b6 607 TRUE, /* pc_relative */
5bd4f169
AM		 608 0, /* bitpos */
609 complain_overflow_signed, /* complain_on_overflow */
610 bfd_elf_generic_reloc, /* special_function */
611 "R_PPC64_PLTREL32", /* name */
b34976b6 612 FALSE, /* partial_inplace */
5bd4f169 613 0, /* src_mask */
f5e87a1d 614 0xffffffff, /* dst_mask */
b34976b6 615 TRUE), /* pcrel_offset */
5bd4f169
AM		 616
617 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
618 the symbol. */
619 HOWTO (R_PPC64_PLT16_LO, /* type */
620 0, /* rightshift */
621 1, /* size (0 = byte, 1 = short, 2 = long) */
622 16, /* bitsize */
b34976b6 623 FALSE, /* pc_relative */
5bd4f169
AM		 624 0, /* bitpos */
625 complain_overflow_dont, /* complain_on_overflow */
805fc799 626 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 627 "R_PPC64_PLT16_LO", /* name */
b34976b6 628 FALSE, /* partial_inplace */
5bd4f169
AM		 629 0, /* src_mask */
630 0xffff, /* dst_mask */
b34976b6 631 FALSE), /* pcrel_offset */
5bd4f169
AM		 632
633 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
634 the symbol. */
635 HOWTO (R_PPC64_PLT16_HI, /* type */
636 16, /* 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_HI", /* 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_HA, but referring to the PLT table entry for
650 the symbol. */
651 HOWTO (R_PPC64_PLT16_HA, /* 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_HA", /* name */
b34976b6 660 FALSE, /* partial_inplace */
5bd4f169
AM		 661 0, /* src_mask */
662 0xffff, /* dst_mask */
b34976b6 663 FALSE), /* pcrel_offset */
5bd4f169 664
c061c2d8 665 /* 16-bit section relative relocation. */
5bd4f169
AM		 666 HOWTO (R_PPC64_SECTOFF, /* type */
667 0, /* rightshift */
c061c2d8
AM		 668 1, /* size (0 = byte, 1 = short, 2 = long) */
669 16, /* bitsize */
b34976b6 670 FALSE, /* pc_relative */
5bd4f169
AM		 671 0, /* bitpos */
672 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 673 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 674 "R_PPC64_SECTOFF", /* name */
b34976b6 675 FALSE, /* partial_inplace */
5bd4f169 676 0, /* src_mask */
c061c2d8 677 0xffff, /* dst_mask */
b34976b6 678 FALSE), /* pcrel_offset */
5bd4f169 679
c061c2d8 680 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 681 HOWTO (R_PPC64_SECTOFF_LO, /* type */
682 0, /* rightshift */
683 1, /* size (0 = byte, 1 = short, 2 = long) */
684 16, /* bitsize */
b34976b6 685 FALSE, /* pc_relative */
5bd4f169
AM		 686 0, /* bitpos */
687 complain_overflow_dont, /* complain_on_overflow */
805fc799 688 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 689 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 690 FALSE, /* partial_inplace */
5bd4f169
AM		 691 0, /* src_mask */
692 0xffff, /* dst_mask */
b34976b6 693 FALSE), /* pcrel_offset */
5bd4f169
AM		 694
695 /* 16-bit upper half section relative relocation. */
696 HOWTO (R_PPC64_SECTOFF_HI, /* type */
697 16, /* rightshift */
698 1, /* size (0 = byte, 1 = short, 2 = long) */
699 16, /* bitsize */
b34976b6 700 FALSE, /* pc_relative */
5bd4f169
AM		 701 0, /* bitpos */
702 complain_overflow_dont, /* complain_on_overflow */
805fc799 703 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 704 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 705 FALSE, /* partial_inplace */
5bd4f169
AM		 706 0, /* src_mask */
707 0xffff, /* dst_mask */
b34976b6 708 FALSE), /* pcrel_offset */
5bd4f169
AM		 709
710 /* 16-bit upper half adjusted section relative relocation. */
711 HOWTO (R_PPC64_SECTOFF_HA, /* type */
712 16, /* rightshift */
713 1, /* size (0 = byte, 1 = short, 2 = long) */
714 16, /* bitsize */
b34976b6 715 FALSE, /* pc_relative */
5bd4f169
AM		 716 0, /* bitpos */
717 complain_overflow_dont, /* complain_on_overflow */
805fc799 718 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 719 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 720 FALSE, /* partial_inplace */
5bd4f169
AM		 721 0, /* src_mask */
722 0xffff, /* dst_mask */
b34976b6 723 FALSE), /* pcrel_offset */
5bd4f169 724
04c9666a
AM		 725 /* Like R_PPC64_REL24 without touching the two least significant bits. */
726 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 727 2, /* rightshift */
728 2, /* size (0 = byte, 1 = short, 2 = long) */
729 30, /* bitsize */
b34976b6 730 TRUE, /* pc_relative */
5bd4f169
AM		 731 0, /* bitpos */
732 complain_overflow_dont, /* complain_on_overflow */
733 bfd_elf_generic_reloc, /* special_function */
04c9666a 734 "R_PPC64_REL30", /* name */
b34976b6 735 FALSE, /* partial_inplace */
d006db6c 736 0, /* src_mask */
5bd4f169 737 0xfffffffc, /* dst_mask */
b34976b6 738 TRUE), /* pcrel_offset */
5bd4f169
AM		 739
740 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
741
742 /* A standard 64-bit relocation. */
743 HOWTO (R_PPC64_ADDR64, /* type */
744 0, /* rightshift */
745 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
746 64, /* bitsize */
b34976b6 747 FALSE, /* pc_relative */
5bd4f169
AM		 748 0, /* bitpos */
749 complain_overflow_dont, /* complain_on_overflow */
750 bfd_elf_generic_reloc, /* special_function */
751 "R_PPC64_ADDR64", /* name */
b34976b6 752 FALSE, /* partial_inplace */
5bd4f169 753 0, /* src_mask */
f5e87a1d 754 ONES (64), /* dst_mask */
b34976b6 755 FALSE), /* pcrel_offset */
5bd4f169
AM		 756
757 /* The bits 32-47 of an address. */
758 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
759 32, /* rightshift */
760 1, /* size (0 = byte, 1 = short, 2 = long) */
761 16, /* bitsize */
b34976b6 762 FALSE, /* pc_relative */
5bd4f169
AM		 763 0, /* bitpos */
764 complain_overflow_dont, /* complain_on_overflow */
765 bfd_elf_generic_reloc, /* special_function */
766 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 767 FALSE, /* partial_inplace */
5bd4f169
AM		 768 0, /* src_mask */
769 0xffff, /* dst_mask */
b34976b6 770 FALSE), /* pcrel_offset */
5bd4f169
AM		 771
772 /* The bits 32-47 of an address, plus 1 if the contents of the low
773 16 bits, treated as a signed number, is negative. */
774 HOWTO (R_PPC64_ADDR16_HIGHERA, /* 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 */
805fc799 781 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 782 "R_PPC64_ADDR16_HIGHERA", /* 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 48-63 of an address. */
789 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
790 48, /* rightshift */
791 1, /* size (0 = byte, 1 = short, 2 = long) */
792 16, /* bitsize */
b34976b6 793 FALSE, /* pc_relative */
5bd4f169
AM		 794 0, /* bitpos */
795 complain_overflow_dont, /* complain_on_overflow */
796 bfd_elf_generic_reloc, /* special_function */
797 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 798 FALSE, /* partial_inplace */
5bd4f169
AM		 799 0, /* src_mask */
800 0xffff, /* dst_mask */
b34976b6 801 FALSE), /* pcrel_offset */
5bd4f169
AM		 802
803 /* The bits 48-63 of an address, plus 1 if the contents of the low
804 16 bits, treated as a signed number, is negative. */
805 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* 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 */
805fc799 812 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 813 "R_PPC64_ADDR16_HIGHESTA", /* 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 /* Like ADDR64, but may be unaligned. */
820 HOWTO (R_PPC64_UADDR64, /* type */
821 0, /* rightshift */
822 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
823 64, /* bitsize */
b34976b6 824 FALSE, /* pc_relative */
5bd4f169
AM		 825 0, /* bitpos */
826 complain_overflow_dont, /* complain_on_overflow */
827 bfd_elf_generic_reloc, /* special_function */
828 "R_PPC64_UADDR64", /* name */
b34976b6 829 FALSE, /* partial_inplace */
5bd4f169 830 0, /* src_mask */
f5e87a1d 831 ONES (64), /* dst_mask */
b34976b6 832 FALSE), /* pcrel_offset */
5bd4f169
AM		 833
834 /* 64-bit relative relocation. */
835 HOWTO (R_PPC64_REL64, /* type */
836 0, /* rightshift */
837 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
838 64, /* bitsize */
b34976b6 839 TRUE, /* pc_relative */
5bd4f169
AM		 840 0, /* bitpos */
841 complain_overflow_dont, /* complain_on_overflow */
842 bfd_elf_generic_reloc, /* special_function */
843 "R_PPC64_REL64", /* name */
b34976b6 844 FALSE, /* partial_inplace */
5bd4f169 845 0, /* src_mask */
f5e87a1d 846 ONES (64), /* dst_mask */
b34976b6 847 TRUE), /* pcrel_offset */
5bd4f169 848
cedb70c5 849 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 850 HOWTO (R_PPC64_PLT64, /* type */
851 0, /* rightshift */
852 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
853 64, /* bitsize */
b34976b6 854 FALSE, /* pc_relative */
5bd4f169
AM		 855 0, /* bitpos */
856 complain_overflow_dont, /* complain_on_overflow */
805fc799 857 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 858 "R_PPC64_PLT64", /* name */
b34976b6 859 FALSE, /* partial_inplace */
5bd4f169 860 0, /* src_mask */
f5e87a1d 861 ONES (64), /* dst_mask */
b34976b6 862 FALSE), /* pcrel_offset */
5bd4f169
AM		 863
864 /* 64-bit PC relative relocation to the symbol's procedure linkage
865 table. */
866 /* FIXME: R_PPC64_PLTREL64 not supported. */
867 HOWTO (R_PPC64_PLTREL64, /* type */
868 0, /* rightshift */
869 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
870 64, /* bitsize */
b34976b6 871 TRUE, /* pc_relative */
5bd4f169
AM		 872 0, /* bitpos */
873 complain_overflow_dont, /* complain_on_overflow */
805fc799 874 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 875 "R_PPC64_PLTREL64", /* name */
b34976b6 876 FALSE, /* partial_inplace */
5bd4f169 877 0, /* src_mask */
f5e87a1d 878 ONES (64), /* dst_mask */
b34976b6 879 TRUE), /* pcrel_offset */
5bd4f169
AM		 880
881 /* 16 bit TOC-relative relocation. */
882
883 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
884 HOWTO (R_PPC64_TOC16, /* type */
885 0, /* rightshift */
886 1, /* size (0 = byte, 1 = short, 2 = long) */
887 16, /* bitsize */
b34976b6 888 FALSE, /* pc_relative */
5bd4f169
AM		 889 0, /* bitpos */
890 complain_overflow_signed, /* complain_on_overflow */
805fc799 891 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 892 "R_PPC64_TOC16", /* name */
b34976b6 893 FALSE, /* partial_inplace */
5bd4f169
AM		 894 0, /* src_mask */
895 0xffff, /* dst_mask */
b34976b6 896 FALSE), /* pcrel_offset */
5bd4f169
AM		 897
898 /* 16 bit TOC-relative relocation without overflow. */
899
900 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
901 HOWTO (R_PPC64_TOC16_LO, /* type */
902 0, /* rightshift */
903 1, /* size (0 = byte, 1 = short, 2 = long) */
904 16, /* bitsize */
b34976b6 905 FALSE, /* pc_relative */
5bd4f169
AM		 906 0, /* bitpos */
907 complain_overflow_dont, /* complain_on_overflow */
805fc799 908 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 909 "R_PPC64_TOC16_LO", /* name */
b34976b6 910 FALSE, /* partial_inplace */
5bd4f169
AM		 911 0, /* src_mask */
912 0xffff, /* dst_mask */
b34976b6 913 FALSE), /* pcrel_offset */
5bd4f169
AM		 914
915 /* 16 bit TOC-relative relocation, high 16 bits. */
916
917 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
918 HOWTO (R_PPC64_TOC16_HI, /* type */
919 16, /* rightshift */
920 1, /* size (0 = byte, 1 = short, 2 = long) */
921 16, /* bitsize */
b34976b6 922 FALSE, /* pc_relative */
5bd4f169
AM		 923 0, /* bitpos */
924 complain_overflow_dont, /* complain_on_overflow */
805fc799 925 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 926 "R_PPC64_TOC16_HI", /* name */
b34976b6 927 FALSE, /* partial_inplace */
5bd4f169
AM		 928 0, /* src_mask */
929 0xffff, /* dst_mask */
b34976b6 930 FALSE), /* pcrel_offset */
5bd4f169
AM		 931
932 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
933 contents of the low 16 bits, treated as a signed number, is
934 negative. */
935
936 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
937 HOWTO (R_PPC64_TOC16_HA, /* type */
938 16, /* rightshift */
939 1, /* size (0 = byte, 1 = short, 2 = long) */
940 16, /* bitsize */
b34976b6 941 FALSE, /* pc_relative */
5bd4f169
AM		 942 0, /* bitpos */
943 complain_overflow_dont, /* complain_on_overflow */
805fc799 944 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 945 "R_PPC64_TOC16_HA", /* name */
b34976b6 946 FALSE, /* partial_inplace */
5bd4f169
AM		 947 0, /* src_mask */
948 0xffff, /* dst_mask */
b34976b6 949 FALSE), /* pcrel_offset */
5bd4f169
AM		 950
951 /* 64-bit relocation; insert value of TOC base (.TOC.). */
952
953 /* R_PPC64_TOC 51 doubleword64 .TOC. */
954 HOWTO (R_PPC64_TOC, /* type */
955 0, /* rightshift */
956 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
957 64, /* bitsize */
b34976b6 958 FALSE, /* pc_relative */
5bd4f169
AM		 959 0, /* bitpos */
960 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 961 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 962 "R_PPC64_TOC", /* name */
b34976b6 963 FALSE, /* partial_inplace */
5bd4f169 964 0, /* src_mask */
f5e87a1d 965 ONES (64), /* dst_mask */
b34976b6 966 FALSE), /* pcrel_offset */
5bd4f169
AM		 967
968 /* Like R_PPC64_GOT16, but also informs the link editor that the
969 value to relocate may (!) refer to a PLT entry which the link
970 editor (a) may replace with the symbol value. If the link editor
971 is unable to fully resolve the symbol, it may (b) create a PLT
972 entry and store the address to the new PLT entry in the GOT.
973 This permits lazy resolution of function symbols at run time.
974 The link editor may also skip all of this and just (c) emit a
975 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
976 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
977 HOWTO (R_PPC64_PLTGOT16, /* type */
978 0, /* rightshift */
979 1, /* size (0 = byte, 1 = short, 2 = long) */
980 16, /* bitsize */
b34976b6 981 FALSE, /* pc_relative */
5bd4f169
AM		 982 0, /* bitpos */
983 complain_overflow_signed, /* complain_on_overflow */
805fc799 984 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 985 "R_PPC64_PLTGOT16", /* name */
986 FALSE, /* partial_inplace */
987 0, /* src_mask */
988 0xffff, /* dst_mask */
989 FALSE), /* pcrel_offset */
990
991 /* Like R_PPC64_PLTGOT16, but without overflow. */
992 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
993 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
994 0, /* rightshift */
995 1, /* size (0 = byte, 1 = short, 2 = long) */
996 16, /* bitsize */
997 FALSE, /* pc_relative */
998 0, /* bitpos */
999 complain_overflow_dont, /* complain_on_overflow */
1000 ppc64_elf_unhandled_reloc, /* special_function */
1001 "R_PPC64_PLTGOT16_LO", /* name */
1002 FALSE, /* partial_inplace */
1003 0, /* src_mask */
1004 0xffff, /* dst_mask */
1005 FALSE), /* pcrel_offset */
1006
1007 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1008 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1009 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1010 16, /* 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_HI", /* 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, plus
1024 1 if the contents of the low 16 bits, treated as a signed number,
1025 is negative. */
1026 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1027 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1028 16, /* rightshift */
1029 1, /* size (0 = byte, 1 = short, 2 = long) */
1030 16, /* bitsize */
1031 FALSE, /* pc_relative */
1032 0, /* bitpos */
1033 complain_overflow_dont,/* complain_on_overflow */
1034 ppc64_elf_unhandled_reloc, /* special_function */
1035 "R_PPC64_PLTGOT16_HA", /* name */
1036 FALSE, /* partial_inplace */
1037 0, /* src_mask */
1038 0xffff, /* dst_mask */
1039 FALSE), /* pcrel_offset */
1040
1041 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1042 HOWTO (R_PPC64_ADDR16_DS, /* type */
1043 0, /* rightshift */
1044 1, /* size (0 = byte, 1 = short, 2 = long) */
1045 16, /* bitsize */
1046 FALSE, /* pc_relative */
1047 0, /* bitpos */
1048 complain_overflow_bitfield, /* complain_on_overflow */
1049 bfd_elf_generic_reloc, /* special_function */
1050 "R_PPC64_ADDR16_DS", /* name */
1051 FALSE, /* partial_inplace */
1052 0, /* src_mask */
1053 0xfffc, /* dst_mask */
1054 FALSE), /* pcrel_offset */
1055
1056 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1057 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1058 0, /* rightshift */
1059 1, /* size (0 = byte, 1 = short, 2 = long) */
1060 16, /* bitsize */
1061 FALSE, /* pc_relative */
1062 0, /* bitpos */
1063 complain_overflow_dont,/* complain_on_overflow */
1064 bfd_elf_generic_reloc, /* special_function */
1065 "R_PPC64_ADDR16_LO_DS",/* name */
1066 FALSE, /* partial_inplace */
1067 0, /* src_mask */
1068 0xfffc, /* dst_mask */
1069 FALSE), /* pcrel_offset */
1070
1071 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1072 HOWTO (R_PPC64_GOT16_DS, /* type */
1073 0, /* rightshift */
1074 1, /* size (0 = byte, 1 = short, 2 = long) */
1075 16, /* bitsize */
1076 FALSE, /* pc_relative */
1077 0, /* bitpos */
1078 complain_overflow_signed, /* complain_on_overflow */
1079 ppc64_elf_unhandled_reloc, /* special_function */
1080 "R_PPC64_GOT16_DS", /* name */
1081 FALSE, /* partial_inplace */
1082 0, /* src_mask */
1083 0xfffc, /* dst_mask */
1084 FALSE), /* pcrel_offset */
1085
1086 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1087 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1088 0, /* rightshift */
1089 1, /* size (0 = byte, 1 = short, 2 = long) */
1090 16, /* bitsize */
1091 FALSE, /* pc_relative */
1092 0, /* bitpos */
1093 complain_overflow_dont, /* complain_on_overflow */
1094 ppc64_elf_unhandled_reloc, /* special_function */
1095 "R_PPC64_GOT16_LO_DS", /* name */
1096 FALSE, /* partial_inplace */
1097 0, /* src_mask */
1098 0xfffc, /* dst_mask */
1099 FALSE), /* pcrel_offset */
1100
1101 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1102 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1103 0, /* rightshift */
1104 1, /* size (0 = byte, 1 = short, 2 = long) */
1105 16, /* bitsize */
1106 FALSE, /* pc_relative */
1107 0, /* bitpos */
1108 complain_overflow_dont, /* complain_on_overflow */
1109 ppc64_elf_unhandled_reloc, /* special_function */
1110 "R_PPC64_PLT16_LO_DS", /* name */
1111 FALSE, /* partial_inplace */
1112 0, /* src_mask */
1113 0xfffc, /* dst_mask */
1114 FALSE), /* pcrel_offset */
1115
1116 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1117 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1118 0, /* rightshift */
1119 1, /* size (0 = byte, 1 = short, 2 = long) */
1120 16, /* bitsize */
1121 FALSE, /* pc_relative */
1122 0, /* bitpos */
1123 complain_overflow_bitfield, /* complain_on_overflow */
1124 ppc64_elf_sectoff_reloc, /* special_function */
1125 "R_PPC64_SECTOFF_DS", /* name */
1126 FALSE, /* partial_inplace */
1127 0, /* src_mask */
1128 0xfffc, /* dst_mask */
1129 FALSE), /* pcrel_offset */
1130
1131 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1132 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1133 0, /* rightshift */
1134 1, /* size (0 = byte, 1 = short, 2 = long) */
1135 16, /* bitsize */
1136 FALSE, /* pc_relative */
1137 0, /* bitpos */
1138 complain_overflow_dont, /* complain_on_overflow */
1139 ppc64_elf_sectoff_reloc, /* special_function */
1140 "R_PPC64_SECTOFF_LO_DS",/* name */
1141 FALSE, /* partial_inplace */
1142 0, /* src_mask */
1143 0xfffc, /* dst_mask */
1144 FALSE), /* pcrel_offset */
1145
1146 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1147 HOWTO (R_PPC64_TOC16_DS, /* type */
1148 0, /* rightshift */
1149 1, /* size (0 = byte, 1 = short, 2 = long) */
1150 16, /* bitsize */
1151 FALSE, /* pc_relative */
1152 0, /* bitpos */
1153 complain_overflow_signed, /* complain_on_overflow */
1154 ppc64_elf_toc_reloc, /* special_function */
1155 "R_PPC64_TOC16_DS", /* name */
1156 FALSE, /* partial_inplace */
1157 0, /* src_mask */
1158 0xfffc, /* dst_mask */
1159 FALSE), /* pcrel_offset */
1160
1161 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1162 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1163 0, /* rightshift */
1164 1, /* size (0 = byte, 1 = short, 2 = long) */
1165 16, /* bitsize */
1166 FALSE, /* pc_relative */
1167 0, /* bitpos */
1168 complain_overflow_dont, /* complain_on_overflow */
1169 ppc64_elf_toc_reloc, /* special_function */
1170 "R_PPC64_TOC16_LO_DS", /* name */
1171 FALSE, /* partial_inplace */
1172 0, /* src_mask */
1173 0xfffc, /* dst_mask */
1174 FALSE), /* pcrel_offset */
1175
1176 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1177 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1178 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1179 0, /* rightshift */
1180 1, /* size (0 = byte, 1 = short, 2 = long) */
1181 16, /* bitsize */
1182 FALSE, /* pc_relative */
1183 0, /* bitpos */
1184 complain_overflow_signed, /* complain_on_overflow */
1185 ppc64_elf_unhandled_reloc, /* special_function */
1186 "R_PPC64_PLTGOT16_DS", /* name */
1187 FALSE, /* partial_inplace */
1188 0, /* src_mask */
1189 0xfffc, /* dst_mask */
1190 FALSE), /* pcrel_offset */
1191
1192 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1193 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1194 HOWTO (R_PPC64_PLTGOT16_LO_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_dont, /* complain_on_overflow */
1201 ppc64_elf_unhandled_reloc, /* special_function */
1202 "R_PPC64_PLTGOT16_LO_DS",/* name */
1203 FALSE, /* partial_inplace */
1204 0, /* src_mask */
1205 0xfffc, /* dst_mask */
1206 FALSE), /* pcrel_offset */
1207
1208 /* Marker reloc for TLS. */
1209 HOWTO (R_PPC64_TLS,
1210 0, /* rightshift */
1211 2, /* size (0 = byte, 1 = short, 2 = long) */
1212 32, /* bitsize */
1213 FALSE, /* pc_relative */
1214 0, /* bitpos */
1215 complain_overflow_dont, /* complain_on_overflow */
1216 bfd_elf_generic_reloc, /* special_function */
1217 "R_PPC64_TLS", /* name */
1218 FALSE, /* partial_inplace */
1219 0, /* src_mask */
1220 0, /* dst_mask */
1221 FALSE), /* pcrel_offset */
1222
1223 /* Computes the load module index of the load module that contains the
1224 definition of its TLS sym. */
1225 HOWTO (R_PPC64_DTPMOD64,
1226 0, /* rightshift */
1227 4, /* size (0 = byte, 1 = short, 2 = long) */
1228 64, /* bitsize */
1229 FALSE, /* pc_relative */
1230 0, /* bitpos */
1231 complain_overflow_dont, /* complain_on_overflow */
1232 ppc64_elf_unhandled_reloc, /* special_function */
1233 "R_PPC64_DTPMOD64", /* name */
1234 FALSE, /* partial_inplace */
1235 0, /* src_mask */
1236 ONES (64), /* dst_mask */
1237 FALSE), /* pcrel_offset */
1238
1239 /* Computes a dtv-relative displacement, the difference between the value
1240 of sym+add and the base address of the thread-local storage block that
1241 contains the definition of sym, minus 0x8000. */
1242 HOWTO (R_PPC64_DTPREL64,
1243 0, /* rightshift */
1244 4, /* size (0 = byte, 1 = short, 2 = long) */
1245 64, /* bitsize */
1246 FALSE, /* pc_relative */
1247 0, /* bitpos */
1248 complain_overflow_dont, /* complain_on_overflow */
1249 ppc64_elf_unhandled_reloc, /* special_function */
1250 "R_PPC64_DTPREL64", /* name */
1251 FALSE, /* partial_inplace */
1252 0, /* src_mask */
1253 ONES (64), /* dst_mask */
1254 FALSE), /* pcrel_offset */
1255
1256 /* A 16 bit dtprel reloc. */
1257 HOWTO (R_PPC64_DTPREL16,
1258 0, /* rightshift */
1259 1, /* size (0 = byte, 1 = short, 2 = long) */
1260 16, /* bitsize */
1261 FALSE, /* pc_relative */
1262 0, /* bitpos */
1263 complain_overflow_signed, /* complain_on_overflow */
1264 ppc64_elf_unhandled_reloc, /* special_function */
1265 "R_PPC64_DTPREL16", /* name */
1266 FALSE, /* partial_inplace */
1267 0, /* src_mask */
1268 0xffff, /* dst_mask */
1269 FALSE), /* pcrel_offset */
1270
1271 /* Like DTPREL16, but no overflow. */
1272 HOWTO (R_PPC64_DTPREL16_LO,
1273 0, /* rightshift */
1274 1, /* size (0 = byte, 1 = short, 2 = long) */
1275 16, /* bitsize */
1276 FALSE, /* pc_relative */
1277 0, /* bitpos */
1278 complain_overflow_dont, /* complain_on_overflow */
1279 ppc64_elf_unhandled_reloc, /* special_function */
1280 "R_PPC64_DTPREL16_LO", /* name */
1281 FALSE, /* partial_inplace */
1282 0, /* src_mask */
1283 0xffff, /* dst_mask */
1284 FALSE), /* pcrel_offset */
1285
1286 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1287 HOWTO (R_PPC64_DTPREL16_HI,
1288 16, /* rightshift */
1289 1, /* size (0 = byte, 1 = short, 2 = long) */
1290 16, /* bitsize */
1291 FALSE, /* pc_relative */
1292 0, /* bitpos */
1293 complain_overflow_dont, /* complain_on_overflow */
1294 ppc64_elf_unhandled_reloc, /* special_function */
1295 "R_PPC64_DTPREL16_HI", /* name */
1296 FALSE, /* partial_inplace */
1297 0, /* src_mask */
1298 0xffff, /* dst_mask */
1299 FALSE), /* pcrel_offset */
1300
1301 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1302 HOWTO (R_PPC64_DTPREL16_HA,
1303 16, /* rightshift */
1304 1, /* size (0 = byte, 1 = short, 2 = long) */
1305 16, /* bitsize */
1306 FALSE, /* pc_relative */
1307 0, /* bitpos */
1308 complain_overflow_dont, /* complain_on_overflow */
1309 ppc64_elf_unhandled_reloc, /* special_function */
1310 "R_PPC64_DTPREL16_HA", /* name */
1311 FALSE, /* partial_inplace */
1312 0, /* src_mask */
1313 0xffff, /* dst_mask */
1314 FALSE), /* pcrel_offset */
1315
1316 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1317 HOWTO (R_PPC64_DTPREL16_HIGHER,
1318 32, /* rightshift */
1319 1, /* size (0 = byte, 1 = short, 2 = long) */
1320 16, /* bitsize */
1321 FALSE, /* pc_relative */
1322 0, /* bitpos */
1323 complain_overflow_dont, /* complain_on_overflow */
1324 ppc64_elf_unhandled_reloc, /* special_function */
1325 "R_PPC64_DTPREL16_HIGHER", /* name */
1326 FALSE, /* partial_inplace */
1327 0, /* src_mask */
1328 0xffff, /* dst_mask */
1329 FALSE), /* pcrel_offset */
1330
1331 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1332 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1333 32, /* rightshift */
1334 1, /* size (0 = byte, 1 = short, 2 = long) */
1335 16, /* bitsize */
1336 FALSE, /* pc_relative */
1337 0, /* bitpos */
1338 complain_overflow_dont, /* complain_on_overflow */
1339 ppc64_elf_unhandled_reloc, /* special_function */
1340 "R_PPC64_DTPREL16_HIGHERA", /* name */
1341 FALSE, /* partial_inplace */
1342 0, /* src_mask */
1343 0xffff, /* dst_mask */
1344 FALSE), /* pcrel_offset */
1345
1346 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1347 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1348 48, /* rightshift */
1349 1, /* size (0 = byte, 1 = short, 2 = long) */
1350 16, /* bitsize */
1351 FALSE, /* pc_relative */
1352 0, /* bitpos */
1353 complain_overflow_dont, /* complain_on_overflow */
1354 ppc64_elf_unhandled_reloc, /* special_function */
1355 "R_PPC64_DTPREL16_HIGHEST", /* name */
1356 FALSE, /* partial_inplace */
1357 0, /* src_mask */
1358 0xffff, /* dst_mask */
1359 FALSE), /* pcrel_offset */
1360
1361 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1362 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1363 48, /* rightshift */
1364 1, /* size (0 = byte, 1 = short, 2 = long) */
1365 16, /* bitsize */
1366 FALSE, /* pc_relative */
1367 0, /* bitpos */
1368 complain_overflow_dont, /* complain_on_overflow */
1369 ppc64_elf_unhandled_reloc, /* special_function */
1370 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1371 FALSE, /* partial_inplace */
1372 0, /* src_mask */
1373 0xffff, /* dst_mask */
1374 FALSE), /* pcrel_offset */
1375
1376 /* Like DTPREL16, but for insns with a DS field. */
1377 HOWTO (R_PPC64_DTPREL16_DS,
1378 0, /* rightshift */
1379 1, /* size (0 = byte, 1 = short, 2 = long) */
1380 16, /* bitsize */
1381 FALSE, /* pc_relative */
1382 0, /* bitpos */
1383 complain_overflow_signed, /* complain_on_overflow */
1384 ppc64_elf_unhandled_reloc, /* special_function */
1385 "R_PPC64_DTPREL16_DS", /* name */
1386 FALSE, /* partial_inplace */
1387 0, /* src_mask */
1388 0xfffc, /* dst_mask */
1389 FALSE), /* pcrel_offset */
1390
1391 /* Like DTPREL16_DS, but no overflow. */
1392 HOWTO (R_PPC64_DTPREL16_LO_DS,
1393 0, /* rightshift */
1394 1, /* size (0 = byte, 1 = short, 2 = long) */
1395 16, /* bitsize */
1396 FALSE, /* pc_relative */
1397 0, /* bitpos */
1398 complain_overflow_dont, /* complain_on_overflow */
1399 ppc64_elf_unhandled_reloc, /* special_function */
1400 "R_PPC64_DTPREL16_LO_DS", /* name */
1401 FALSE, /* partial_inplace */
1402 0, /* src_mask */
1403 0xfffc, /* dst_mask */
1404 FALSE), /* pcrel_offset */
1405
1406 /* Computes a tp-relative displacement, the difference between the value of
1407 sym+add and the value of the thread pointer (r13). */
1408 HOWTO (R_PPC64_TPREL64,
1409 0, /* rightshift */
1410 4, /* size (0 = byte, 1 = short, 2 = long) */
1411 64, /* 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_TPREL64", /* name */
1417 FALSE, /* partial_inplace */
1418 0, /* src_mask */
1419 ONES (64), /* dst_mask */
1420 FALSE), /* pcrel_offset */
1421
1422 /* A 16 bit tprel reloc. */
1423 HOWTO (R_PPC64_TPREL16,
1424 0, /* rightshift */
1425 1, /* size (0 = byte, 1 = short, 2 = long) */
1426 16, /* bitsize */
1427 FALSE, /* pc_relative */
1428 0, /* bitpos */
1429 complain_overflow_signed, /* complain_on_overflow */
1430 ppc64_elf_unhandled_reloc, /* special_function */
1431 "R_PPC64_TPREL16", /* name */
1432 FALSE, /* partial_inplace */
1433 0, /* src_mask */
1434 0xffff, /* dst_mask */
1435 FALSE), /* pcrel_offset */
1436
1437 /* Like TPREL16, but no overflow. */
1438 HOWTO (R_PPC64_TPREL16_LO,
1439 0, /* rightshift */
1440 1, /* size (0 = byte, 1 = short, 2 = long) */
1441 16, /* bitsize */
1442 FALSE, /* pc_relative */
1443 0, /* bitpos */
1444 complain_overflow_dont, /* complain_on_overflow */
1445 ppc64_elf_unhandled_reloc, /* special_function */
1446 "R_PPC64_TPREL16_LO", /* name */
1447 FALSE, /* partial_inplace */
1448 0, /* src_mask */
1449 0xffff, /* dst_mask */
1450 FALSE), /* pcrel_offset */
1451
1452 /* Like TPREL16_LO, but next higher group of 16 bits. */
1453 HOWTO (R_PPC64_TPREL16_HI,
1454 16, /* rightshift */
1455 1, /* size (0 = byte, 1 = short, 2 = long) */
1456 16, /* bitsize */
1457 FALSE, /* pc_relative */
1458 0, /* bitpos */
1459 complain_overflow_dont, /* complain_on_overflow */
1460 ppc64_elf_unhandled_reloc, /* special_function */
1461 "R_PPC64_TPREL16_HI", /* name */
1462 FALSE, /* partial_inplace */
1463 0, /* src_mask */
1464 0xffff, /* dst_mask */
1465 FALSE), /* pcrel_offset */
1466
1467 /* Like TPREL16_HI, but adjust for low 16 bits. */
1468 HOWTO (R_PPC64_TPREL16_HA,
1469 16, /* rightshift */
1470 1, /* size (0 = byte, 1 = short, 2 = long) */
1471 16, /* bitsize */
1472 FALSE, /* pc_relative */
1473 0, /* bitpos */
1474 complain_overflow_dont, /* complain_on_overflow */
1475 ppc64_elf_unhandled_reloc, /* special_function */
1476 "R_PPC64_TPREL16_HA", /* name */
1477 FALSE, /* partial_inplace */
1478 0, /* src_mask */
1479 0xffff, /* dst_mask */
1480 FALSE), /* pcrel_offset */
1481
1482 /* Like TPREL16_HI, but next higher group of 16 bits. */
1483 HOWTO (R_PPC64_TPREL16_HIGHER,
1484 32, /* rightshift */
1485 1, /* size (0 = byte, 1 = short, 2 = long) */
1486 16, /* bitsize */
1487 FALSE, /* pc_relative */
1488 0, /* bitpos */
1489 complain_overflow_dont, /* complain_on_overflow */
1490 ppc64_elf_unhandled_reloc, /* special_function */
1491 "R_PPC64_TPREL16_HIGHER", /* name */
1492 FALSE, /* partial_inplace */
1493 0, /* src_mask */
1494 0xffff, /* dst_mask */
1495 FALSE), /* pcrel_offset */
1496
1497 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1498 HOWTO (R_PPC64_TPREL16_HIGHERA,
1499 32, /* rightshift */
1500 1, /* size (0 = byte, 1 = short, 2 = long) */
1501 16, /* bitsize */
1502 FALSE, /* pc_relative */
1503 0, /* bitpos */
1504 complain_overflow_dont, /* complain_on_overflow */
1505 ppc64_elf_unhandled_reloc, /* special_function */
1506 "R_PPC64_TPREL16_HIGHERA", /* name */
1507 FALSE, /* partial_inplace */
1508 0, /* src_mask */
1509 0xffff, /* dst_mask */
1510 FALSE), /* pcrel_offset */
1511
1512 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1513 HOWTO (R_PPC64_TPREL16_HIGHEST,
1514 48, /* rightshift */
1515 1, /* size (0 = byte, 1 = short, 2 = long) */
1516 16, /* bitsize */
1517 FALSE, /* pc_relative */
1518 0, /* bitpos */
1519 complain_overflow_dont, /* complain_on_overflow */
1520 ppc64_elf_unhandled_reloc, /* special_function */
1521 "R_PPC64_TPREL16_HIGHEST", /* name */
1522 FALSE, /* partial_inplace */
1523 0, /* src_mask */
1524 0xffff, /* dst_mask */
1525 FALSE), /* pcrel_offset */
1526
1527 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1528 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1529 48, /* rightshift */
1530 1, /* size (0 = byte, 1 = short, 2 = long) */
1531 16, /* bitsize */
1532 FALSE, /* pc_relative */
1533 0, /* bitpos */
1534 complain_overflow_dont, /* complain_on_overflow */
1535 ppc64_elf_unhandled_reloc, /* special_function */
1536 "R_PPC64_TPREL16_HIGHESTA", /* name */
1537 FALSE, /* partial_inplace */
1538 0, /* src_mask */
1539 0xffff, /* dst_mask */
1540 FALSE), /* pcrel_offset */
1541
1542 /* Like TPREL16, but for insns with a DS field. */
1543 HOWTO (R_PPC64_TPREL16_DS,
1544 0, /* rightshift */
1545 1, /* size (0 = byte, 1 = short, 2 = long) */
1546 16, /* bitsize */
1547 FALSE, /* pc_relative */
1548 0, /* bitpos */
1549 complain_overflow_signed, /* complain_on_overflow */
1550 ppc64_elf_unhandled_reloc, /* special_function */
1551 "R_PPC64_TPREL16_DS", /* name */
1552 FALSE, /* partial_inplace */
1553 0, /* src_mask */
1554 0xfffc, /* dst_mask */
1555 FALSE), /* pcrel_offset */
1556
1557 /* Like TPREL16_DS, but no overflow. */
1558 HOWTO (R_PPC64_TPREL16_LO_DS,
1559 0, /* rightshift */
1560 1, /* size (0 = byte, 1 = short, 2 = long) */
1561 16, /* bitsize */
1562 FALSE, /* pc_relative */
1563 0, /* bitpos */
1564 complain_overflow_dont, /* complain_on_overflow */
1565 ppc64_elf_unhandled_reloc, /* special_function */
1566 "R_PPC64_TPREL16_LO_DS", /* name */
1567 FALSE, /* partial_inplace */
1568 0, /* src_mask */
1569 0xfffc, /* dst_mask */
1570 FALSE), /* pcrel_offset */
1571
1572 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1573 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1574 to the first entry relative to the TOC base (r2). */
1575 HOWTO (R_PPC64_GOT_TLSGD16,
1576 0, /* rightshift */
1577 1, /* size (0 = byte, 1 = short, 2 = long) */
1578 16, /* bitsize */
1579 FALSE, /* pc_relative */
1580 0, /* bitpos */
1581 complain_overflow_signed, /* complain_on_overflow */
1582 ppc64_elf_unhandled_reloc, /* special_function */
1583 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1584 FALSE, /* partial_inplace */
5bd4f169
AM		 1585 0, /* src_mask */
1586 0xffff, /* dst_mask */
b34976b6 1587 FALSE), /* pcrel_offset */
5bd4f169 1588
411e1bfb
AM		 1589 /* Like GOT_TLSGD16, but no overflow. */
1590 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1591 0, /* rightshift */
1592 1, /* size (0 = byte, 1 = short, 2 = long) */
1593 16, /* bitsize */
b34976b6 1594 FALSE, /* pc_relative */
5bd4f169
AM		 1595 0, /* bitpos */
1596 complain_overflow_dont, /* complain_on_overflow */
805fc799 1597 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1598 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1599 FALSE, /* partial_inplace */
5bd4f169
AM		 1600 0, /* src_mask */
1601 0xffff, /* dst_mask */
b34976b6 1602 FALSE), /* pcrel_offset */
5bd4f169 1603
411e1bfb
AM		 1604 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1605 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1606 16, /* rightshift */
1607 1, /* size (0 = byte, 1 = short, 2 = long) */
1608 16, /* bitsize */
b34976b6 1609 FALSE, /* pc_relative */
5bd4f169
AM		 1610 0, /* bitpos */
1611 complain_overflow_dont, /* complain_on_overflow */
805fc799 1612 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1613 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1614 FALSE, /* partial_inplace */
5bd4f169
AM		 1615 0, /* src_mask */
1616 0xffff, /* dst_mask */
b34976b6 1617 FALSE), /* pcrel_offset */
5bd4f169 1618
411e1bfb
AM		 1619 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1620 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1621 16, /* rightshift */
1622 1, /* size (0 = byte, 1 = short, 2 = long) */
1623 16, /* bitsize */
b34976b6 1624 FALSE, /* pc_relative */
5bd4f169 1625 0, /* bitpos */
411e1bfb 1626 complain_overflow_dont, /* complain_on_overflow */
805fc799 1627 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1628 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1629 FALSE, /* partial_inplace */
5bd4f169
AM		 1630 0, /* src_mask */
1631 0xffff, /* dst_mask */
b34976b6 1632 FALSE), /* pcrel_offset */
5bd4f169 1633
411e1bfb
AM		 1634 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1635 with values (sym+add)@dtpmod and zero, and computes the offset to the
1636 first entry relative to the TOC base (r2). */
1637 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1638 0, /* rightshift */
1639 1, /* size (0 = byte, 1 = short, 2 = long) */
1640 16, /* bitsize */
b34976b6 1641 FALSE, /* pc_relative */
5bd4f169 1642 0, /* bitpos */
411e1bfb
AM		 1643 complain_overflow_signed, /* complain_on_overflow */
1644 ppc64_elf_unhandled_reloc, /* special_function */
1645 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1646 FALSE, /* partial_inplace */
d006db6c 1647 0, /* src_mask */
411e1bfb 1648 0xffff, /* dst_mask */
b34976b6 1649 FALSE), /* pcrel_offset */
5bd4f169 1650
411e1bfb
AM		 1651 /* Like GOT_TLSLD16, but no overflow. */
1652 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1653 0, /* rightshift */
1654 1, /* size (0 = byte, 1 = short, 2 = long) */
1655 16, /* bitsize */
b34976b6 1656 FALSE, /* pc_relative */
5bd4f169 1657 0, /* bitpos */
411e1bfb
AM		 1658 complain_overflow_dont, /* complain_on_overflow */
1659 ppc64_elf_unhandled_reloc, /* special_function */
1660 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1661 FALSE, /* partial_inplace */
d006db6c 1662 0, /* src_mask */
411e1bfb 1663 0xffff, /* dst_mask */
b34976b6 1664 FALSE), /* pcrel_offset */
5bd4f169 1665
411e1bfb
AM		 1666 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1667 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1668 16, /* rightshift */
5bd4f169
AM		 1669 1, /* size (0 = byte, 1 = short, 2 = long) */
1670 16, /* bitsize */
b34976b6 1671 FALSE, /* pc_relative */
5bd4f169 1672 0, /* bitpos */
411e1bfb 1673 complain_overflow_dont, /* complain_on_overflow */
805fc799 1674 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1675 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1676 FALSE, /* partial_inplace */
d006db6c 1677 0, /* src_mask */
411e1bfb 1678 0xffff, /* dst_mask */
b34976b6 1679 FALSE), /* pcrel_offset */
5bd4f169 1680
411e1bfb
AM		 1681 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1682 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1683 16, /* rightshift */
5bd4f169
AM		 1684 1, /* size (0 = byte, 1 = short, 2 = long) */
1685 16, /* bitsize */
b34976b6 1686 FALSE, /* pc_relative */
5bd4f169
AM		 1687 0, /* bitpos */
1688 complain_overflow_dont, /* complain_on_overflow */
805fc799 1689 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1690 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1691 FALSE, /* partial_inplace */
d006db6c 1692 0, /* src_mask */
411e1bfb 1693 0xffff, /* dst_mask */
b34976b6 1694 FALSE), /* pcrel_offset */
5bd4f169 1695
411e1bfb
AM		 1696 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1697 the offset to the entry relative to the TOC base (r2). */
1698 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1699 0, /* rightshift */
1700 1, /* size (0 = byte, 1 = short, 2 = long) */
1701 16, /* bitsize */
b34976b6 1702 FALSE, /* pc_relative */
5bd4f169 1703 0, /* bitpos */
411e1bfb 1704 complain_overflow_signed, /* complain_on_overflow */
805fc799 1705 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1706 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1707 FALSE, /* partial_inplace */
d006db6c 1708 0, /* src_mask */
5bd4f169 1709 0xfffc, /* dst_mask */
b34976b6 1710 FALSE), /* pcrel_offset */
5bd4f169 1711
411e1bfb
AM		 1712 /* Like GOT_DTPREL16_DS, but no overflow. */
1713 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1714 0, /* rightshift */
c061c2d8
AM		 1715 1, /* size (0 = byte, 1 = short, 2 = long) */
1716 16, /* bitsize */
b34976b6 1717 FALSE, /* pc_relative */
5bd4f169 1718 0, /* bitpos */
411e1bfb
AM		 1719 complain_overflow_dont, /* complain_on_overflow */
1720 ppc64_elf_unhandled_reloc, /* special_function */
1721 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1722 FALSE, /* partial_inplace */
d006db6c 1723 0, /* src_mask */
c061c2d8 1724 0xfffc, /* dst_mask */
b34976b6 1725 FALSE), /* pcrel_offset */
5bd4f169 1726
411e1bfb
AM		 1727 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1728 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1729 16, /* rightshift */
5bd4f169
AM		 1730 1, /* size (0 = byte, 1 = short, 2 = long) */
1731 16, /* bitsize */
b34976b6 1732 FALSE, /* pc_relative */
5bd4f169
AM		 1733 0, /* bitpos */
1734 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1735 ppc64_elf_unhandled_reloc, /* special_function */
1736 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1737 FALSE, /* partial_inplace */
d006db6c 1738 0, /* src_mask */
411e1bfb 1739 0xffff, /* dst_mask */
b34976b6 1740 FALSE), /* pcrel_offset */
5bd4f169 1741
411e1bfb
AM		 1742 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1743 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1744 16, /* rightshift */
1745 1, /* size (0 = byte, 1 = short, 2 = long) */
1746 16, /* bitsize */
1747 FALSE, /* pc_relative */
1748 0, /* bitpos */
1749 complain_overflow_dont, /* complain_on_overflow */
1750 ppc64_elf_unhandled_reloc, /* special_function */
1751 "R_PPC64_GOT_DTPREL16_HA", /* name */
1752 FALSE, /* partial_inplace */
1753 0, /* src_mask */
1754 0xffff, /* dst_mask */
1755 FALSE), /* pcrel_offset */
1756
1757 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1758 offset to the entry relative to the TOC base (r2). */
1759 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1760 0, /* rightshift */
1761 1, /* size (0 = byte, 1 = short, 2 = long) */
1762 16, /* bitsize */
b34976b6 1763 FALSE, /* pc_relative */
5bd4f169
AM		 1764 0, /* bitpos */
1765 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1766 ppc64_elf_unhandled_reloc, /* special_function */
1767 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1768 FALSE, /* partial_inplace */
d006db6c 1769 0, /* src_mask */
ad8e1ba5 1770 0xfffc, /* dst_mask */
b34976b6 1771 FALSE), /* pcrel_offset */
5bd4f169 1772
411e1bfb
AM		 1773 /* Like GOT_TPREL16_DS, but no overflow. */
1774 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1775 0, /* rightshift */
1776 1, /* size (0 = byte, 1 = short, 2 = long) */
1777 16, /* bitsize */
b34976b6 1778 FALSE, /* pc_relative */
5bd4f169
AM		 1779 0, /* bitpos */
1780 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1781 ppc64_elf_unhandled_reloc, /* special_function */
1782 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1783 FALSE, /* partial_inplace */
d006db6c 1784 0, /* src_mask */
ad8e1ba5 1785 0xfffc, /* dst_mask */
b34976b6 1786 FALSE), /* pcrel_offset */
5bd4f169 1787
411e1bfb
AM		 1788 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1789 HOWTO (R_PPC64_GOT_TPREL16_HI,
1790 16, /* rightshift */
5bd4f169
AM		 1791 1, /* size (0 = byte, 1 = short, 2 = long) */
1792 16, /* bitsize */
b34976b6 1793 FALSE, /* pc_relative */
5bd4f169 1794 0, /* bitpos */
411e1bfb 1795 complain_overflow_dont, /* complain_on_overflow */
805fc799 1796 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1797 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1798 FALSE, /* partial_inplace */
d006db6c 1799 0, /* src_mask */
411e1bfb 1800 0xffff, /* dst_mask */
b34976b6 1801 FALSE), /* pcrel_offset */
5bd4f169 1802
411e1bfb
AM		 1803 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1804 HOWTO (R_PPC64_GOT_TPREL16_HA,
1805 16, /* rightshift */
5bd4f169
AM		 1806 1, /* size (0 = byte, 1 = short, 2 = long) */
1807 16, /* bitsize */
b34976b6 1808 FALSE, /* pc_relative */
5bd4f169
AM		 1809 0, /* bitpos */
1810 complain_overflow_dont, /* complain_on_overflow */
805fc799 1811 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1812 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1813 FALSE, /* partial_inplace */
d006db6c 1814 0, /* src_mask */
411e1bfb 1815 0xffff, /* dst_mask */
b34976b6 1816 FALSE), /* pcrel_offset */
5bd4f169
AM		 1817
1818 /* GNU extension to record C++ vtable hierarchy. */
1819 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1820 0, /* rightshift */
1821 0, /* size (0 = byte, 1 = short, 2 = long) */
1822 0, /* bitsize */
b34976b6 1823 FALSE, /* pc_relative */
5bd4f169
AM		 1824 0, /* bitpos */
1825 complain_overflow_dont, /* complain_on_overflow */
1826 NULL, /* special_function */
1827 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1828 FALSE, /* partial_inplace */
5bd4f169
AM		 1829 0, /* src_mask */
1830 0, /* dst_mask */
b34976b6 1831 FALSE), /* pcrel_offset */
5bd4f169
AM		 1832
1833 /* GNU extension to record C++ vtable member usage. */
1834 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1835 0, /* rightshift */
1836 0, /* size (0 = byte, 1 = short, 2 = long) */
1837 0, /* bitsize */
b34976b6 1838 FALSE, /* pc_relative */
5bd4f169
AM		 1839 0, /* bitpos */
1840 complain_overflow_dont, /* complain_on_overflow */
1841 NULL, /* special_function */
1842 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1843 FALSE, /* partial_inplace */
5bd4f169
AM		 1844 0, /* src_mask */
1845 0, /* dst_mask */
b34976b6 1846 FALSE), /* pcrel_offset */
5bd4f169
AM		 1847};
1848
1849\f
1850/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1851 be done. */
1852
1853static void
4ce794b7 1854ppc_howto_init (void)
5bd4f169
AM		 1855{
1856 unsigned int i, type;
1857
1858 for (i = 0;
1859 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1860 i++)
1861 {
1862 type = ppc64_elf_howto_raw[i].type;
1863 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1864 / sizeof (ppc64_elf_howto_table[0])));
1865 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1866 }
1867}
1868
1869static reloc_howto_type *
4ce794b7
AM		 1870ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1871 bfd_reloc_code_real_type code)
5bd4f169 1872{
411e1bfb 1873 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 1874
1875 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1876 /* Initialize howto table if needed. */
1877 ppc_howto_init ();
1878
4ce794b7 1879 switch (code)
5bd4f169
AM		 1880 {
1881 default:
4ce794b7 1882 return NULL;
5bd4f169 1883
411e1bfb
AM		 1884 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1885 break;
1886 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1887 break;
1888 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1889 break;
1890 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1891 break;
1892 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1893 break;
1894 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1895 break;
1896 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1897 break;
411e1bfb 1898 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1899 break;
411e1bfb 1900 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1901 break;
411e1bfb 1902 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1903 break;
411e1bfb 1904 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1905 break;
411e1bfb 1906 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1907 break;
411e1bfb 1908 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1909 break;
411e1bfb 1910 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1911 break;
411e1bfb 1912 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1913 break;
411e1bfb 1914 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1915 break;
411e1bfb 1916 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1917 break;
411e1bfb 1918 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1919 break;
411e1bfb 1920 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1921 break;
411e1bfb 1922 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1923 break;
411e1bfb 1924 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1925 break;
411e1bfb 1926 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1927 break;
411e1bfb 1928 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1929 break;
411e1bfb 1930 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1931 break;
411e1bfb 1932 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1933 break;
411e1bfb 1934 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1935 break;
411e1bfb 1936 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1937 break;
411e1bfb 1938 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1939 break;
411e1bfb 1940 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1941 break;
411e1bfb 1942 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1943 break;
411e1bfb 1944 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1945 break;
411e1bfb 1946 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1947 break;
411e1bfb 1948 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1949 break;
411e1bfb 1950 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1951 break;
411e1bfb 1952 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1953 break;
411e1bfb 1954 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1955 break;
411e1bfb 1956 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1957 break;
411e1bfb 1958 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1959 break;
411e1bfb 1960 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1961 break;
411e1bfb 1962 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1963 break;
411e1bfb 1964 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1965 break;
411e1bfb 1966 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1967 break;
411e1bfb 1968 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1969 break;
411e1bfb 1970 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1971 break;
411e1bfb 1972 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1973 break;
411e1bfb 1974 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1975 break;
411e1bfb 1976 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1977 break;
411e1bfb 1978 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1979 break;
411e1bfb 1980 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1981 break;
411e1bfb 1982 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 1983 break;
411e1bfb 1984 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 1985 break;
411e1bfb 1986 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 1987 break;
411e1bfb 1988 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 1989 break;
411e1bfb 1990 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 1991 break;
411e1bfb 1992 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 1993 break;
411e1bfb 1994 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 1995 break;
411e1bfb 1996 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 1997 break;
411e1bfb 1998 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 1999 break;
411e1bfb 2000 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2001 break;
411e1bfb 2002 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2003 break;
411e1bfb 2004 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2005 break;
411e1bfb 2006 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2007 break;
411e1bfb 2008 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2009 break;
411e1bfb 2010 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2011 break;
411e1bfb 2012 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2013 break;
411e1bfb 2014 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2015 break;
411e1bfb
AM		 2016 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2017 break;
2018 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2019 break;
2020 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2021 break;
2022 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2023 break;
2024 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2025 break;
2026 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2027 break;
2028 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2029 break;
2030 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2031 break;
2032 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2033 break;
2034 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2035 break;
2036 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2037 break;
2038 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2039 break;
2040 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2041 break;
2042 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2043 break;
2044 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2045 break;
2046 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2047 break;
2048 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2049 break;
2050 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2051 break;
2052 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2053 break;
2054 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2055 break;
2056 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2057 break;
2058 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2059 break;
2060 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2061 break;
2062 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2063 break;
2064 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2065 break;
2066 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2067 break;
2068 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2069 break;
2070 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2071 break;
2072 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2073 break;
2074 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2075 break;
2076 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2077 break;
2078 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2079 break;
2080 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2081 break;
2082 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2083 break;
2084 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2085 break;
2086 }
2087
4ce794b7 2088 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2089};
2090
2091/* Set the howto pointer for a PowerPC ELF reloc. */
2092
2093static void
4ce794b7
AM		 2094ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2095 Elf_Internal_Rela *dst)
5bd4f169 2096{
65f38f15
AM		 2097 unsigned int type;
2098
ef60b7ff 2099 /* Initialize howto table if needed. */
5bd4f169 2100 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2101 ppc_howto_init ();
2102
65f38f15
AM		 2103 type = ELF64_R_TYPE (dst->r_info);
2104 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2105 / sizeof (ppc64_elf_howto_table[0])));
2106 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2107}
2108
04c9666a 2109/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2110
2111static bfd_reloc_status_type
4ce794b7
AM		 2112ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2113 void *data, asection *input_section,
2114 bfd *output_bfd, char **error_message)
5bd4f169 2115{
805fc799
AM		 2116 /* If this is a relocatable link (output_bfd test tells us), just
2117 call the generic function. Any adjustment will be done at final
2118 link time. */
2119 if (output_bfd != NULL)
cedb70c5 2120 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2121 input_section, output_bfd, error_message);
2122
2123 /* Adjust the addend for sign extension of the low 16 bits.
2124 We won't actually be using the low 16 bits, so trashing them
2125 doesn't matter. */
2126 reloc_entry->addend += 0x8000;
2127 return bfd_reloc_continue;
2128}
5bd4f169 2129
805fc799 2130static bfd_reloc_status_type
4ce794b7
AM		 2131ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2132 void *data, asection *input_section,
2133 bfd *output_bfd, char **error_message)
805fc799
AM		 2134{
2135 long insn;
04c9666a 2136 enum elf_ppc64_reloc_type r_type;
805fc799
AM		 2137 bfd_size_type octets;
2138 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2139 bfd_boolean is_power4 = FALSE;
805fc799
AM		 2140
2141 /* If this is a relocatable link (output_bfd test tells us), just
2142 call the generic function. Any adjustment will be done at final
2143 link time. */
5bd4f169 2144 if (output_bfd != NULL)
cedb70c5 2145 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2146 input_section, output_bfd, error_message);
2147
2148 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2149 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2150 insn &= ~(0x01 << 21);
4ce794b7 2151 r_type = reloc_entry->howto->type;
805fc799
AM		 2152 if (r_type == R_PPC64_ADDR14_BRTAKEN
2153 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2154 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM		 2155
2156 if (is_power4)
5bd4f169 2157 {
805fc799
AM		 2158 /* Set 'a' bit. This is 0b00010 in BO field for branch
2159 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2160 for branch on CTR insns (BO == 1a00t or 1a01t). */
2161 if ((insn & (0x14 << 21)) == (0x04 << 21))
2162 insn |= 0x02 << 21;
2163 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2164 insn |= 0x08 << 21;
2165 else
2166 return bfd_reloc_continue;
5bd4f169 2167 }
805fc799
AM		 2168 else
2169 {
2170 bfd_vma target = 0;
2171 bfd_vma from;
5bd4f169 2172
805fc799
AM		 2173 if (!bfd_is_com_section (symbol->section))
2174 target = symbol->value;
2175 target += symbol->section->output_section->vma;
2176 target += symbol->section->output_offset;
2177 target += reloc_entry->addend;
5bd4f169 2178
805fc799
AM		 2179 from = (reloc_entry->address
2180 + input_section->output_offset
2181 + input_section->output_section->vma);
5bd4f169 2182
805fc799
AM		 2183 /* Invert 'y' bit if not the default. */
2184 if ((bfd_signed_vma) (target - from) < 0)
2185 insn ^= 0x01 << 21;
2186 }
4ce794b7 2187 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
805fc799
AM		 2188 return bfd_reloc_continue;
2189}
5bd4f169 2190
805fc799 2191static bfd_reloc_status_type
4ce794b7
AM		 2192ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2193 void *data, asection *input_section,
2194 bfd *output_bfd, char **error_message)
805fc799
AM		 2195{
2196 /* If this is a relocatable link (output_bfd test tells us), just
2197 call the generic function. Any adjustment will be done at final
2198 link time. */
2199 if (output_bfd != NULL)
cedb70c5 2200 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2201 input_section, output_bfd, error_message);
5bd4f169 2202
805fc799
AM		 2203 /* Subtract the symbol section base address. */
2204 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2205 return bfd_reloc_continue;
2206}
2207
805fc799 2208static bfd_reloc_status_type
4ce794b7
AM		 2209ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2210 void *data, asection *input_section,
2211 bfd *output_bfd, char **error_message)
805fc799
AM		 2212{
2213 /* If this is a relocatable link (output_bfd test tells us), just
2214 call the generic function. Any adjustment will be done at final
2215 link time. */
2216 if (output_bfd != NULL)
cedb70c5 2217 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2218 input_section, output_bfd, error_message);
2219
2220 /* Subtract the symbol section base address. */
2221 reloc_entry->addend -= symbol->section->output_section->vma;
2222
2223 /* Adjust the addend for sign extension of the low 16 bits. */
2224 reloc_entry->addend += 0x8000;
2225 return bfd_reloc_continue;
2226}
2227
2228static bfd_reloc_status_type
4ce794b7
AM		 2229ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2230 void *data, asection *input_section,
2231 bfd *output_bfd, char **error_message)
805fc799
AM		 2232{
2233 bfd_vma TOCstart;
2234
2235 /* If this is a relocatable link (output_bfd test tells us), just
2236 call the generic function. Any adjustment will be done at final
2237 link time. */
2238 if (output_bfd != NULL)
cedb70c5 2239 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2240 input_section, output_bfd, error_message);
2241
2242 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2243 if (TOCstart == 0)
2244 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2245
2246 /* Subtract the TOC base address. */
2247 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2248 return bfd_reloc_continue;
2249}
2250
2251static bfd_reloc_status_type
4ce794b7
AM		 2252ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2253 void *data, asection *input_section,
2254 bfd *output_bfd, char **error_message)
805fc799
AM		 2255{
2256 bfd_vma TOCstart;
2257
2258 /* If this is a relocatable link (output_bfd test tells us), just
2259 call the generic function. Any adjustment will be done at final
2260 link time. */
2261 if (output_bfd != NULL)
cedb70c5 2262 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2263 input_section, output_bfd, error_message);
2264
2265 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2266 if (TOCstart == 0)
2267 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2268
2269 /* Subtract the TOC base address. */
2270 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2271
2272 /* Adjust the addend for sign extension of the low 16 bits. */
2273 reloc_entry->addend += 0x8000;
2274 return bfd_reloc_continue;
2275}
2276
2277static bfd_reloc_status_type
4ce794b7
AM		 2278ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2279 void *data, asection *input_section,
2280 bfd *output_bfd, char **error_message)
805fc799
AM		 2281{
2282 bfd_vma TOCstart;
2283 bfd_size_type octets;
2284
2285 /* If this is a relocatable link (output_bfd test tells us), just
2286 call the generic function. Any adjustment will be done at final
2287 link time. */
2288 if (output_bfd != NULL)
cedb70c5 2289 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2290 input_section, output_bfd, error_message);
2291
2292 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2293 if (TOCstart == 0)
2294 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2295
2296 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2297 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2298 return bfd_reloc_ok;
2299}
2300
2301static bfd_reloc_status_type
4ce794b7
AM		 2302ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2303 void *data, asection *input_section,
2304 bfd *output_bfd, char **error_message)
805fc799
AM		 2305{
2306 /* If this is a relocatable link (output_bfd test tells us), just
2307 call the generic function. Any adjustment will be done at final
2308 link time. */
2309 if (output_bfd != NULL)
cedb70c5 2310 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2311 input_section, output_bfd, error_message);
2312
2313 if (error_message != NULL)
2314 {
2315 static char buf[60];
2316 sprintf (buf, "generic linker can't handle %s",
2317 reloc_entry->howto->name);
2318 *error_message = buf;
2319 }
2320 return bfd_reloc_dangerous;
2321}
2322
e717da7e
AM		 2323struct ppc64_elf_obj_tdata
2324{
2325 struct elf_obj_tdata elf;
2326
2327 /* Shortcuts to dynamic linker sections. */
2328 asection *got;
2329 asection *relgot;
2330
2331 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2332 sections means we potentially need one of these for each input bfd. */
2333 union {
2334 bfd_signed_vma refcount;
2335 bfd_vma offset;
2336 } tlsld_got;
2337};
2338
2339#define ppc64_elf_tdata(bfd) \
2340 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2341
2342#define ppc64_tlsld_got(bfd) \
2343 (&ppc64_elf_tdata (bfd)->tlsld_got)
2344
2345/* Override the generic function because we store some extras. */
2346
2347static bfd_boolean
2348ppc64_elf_mkobject (bfd *abfd)
2349{
2350 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2351 abfd->tdata.any = bfd_zalloc (abfd, amt);
2352 if (abfd->tdata.any == NULL)
2353 return FALSE;
2354 return TRUE;
2355}
2356
feee612b
AM		 2357/* Fix bad default arch selected for a 64 bit input bfd when the
2358 default is 32 bit. */
2359
b34976b6 2360static bfd_boolean
4ce794b7 2361ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2362{
2363 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2364 {
2365 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2366
2367 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2368 {
2369 /* Relies on arch after 32 bit default being 64 bit default. */
2370 abfd->arch_info = abfd->arch_info->next;
2371 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2372 }
2373 }
b34976b6 2374 return TRUE;
feee612b
AM		 2375}
2376
d37c89e5
AM		 2377/* Support for core dump NOTE sections. */
2378
2379static bfd_boolean
2380ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2381{
2382 size_t offset, raw_size;
2383
2384 if (note->descsz != 504)
2385 return FALSE;
2386
2387 /* pr_cursig */
2388 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2389
2390 /* pr_pid */
2391 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2392
2393 /* pr_reg */
2394 offset = 112;
2395 raw_size = 384;
2396
2397 /* Make a ".reg/999" section. */
2398 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2399 raw_size, note->descpos + offset);
2400}
2401
2402static bfd_boolean
2403ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2404{
2405 if (note->descsz != 136)
2406 return FALSE;
2407
2408 elf_tdata (abfd)->core_program
2409 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2410 elf_tdata (abfd)->core_command
2411 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2412
2413 return TRUE;
2414}
2415
5bd4f169
AM		 2416/* Merge backend specific data from an object file to the output
2417 object file when linking. */
2f6d9989 2418
b34976b6 2419static bfd_boolean
4ce794b7 2420ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2421{
5bd4f169
AM		 2422 /* Check if we have the same endianess. */
2423 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2424 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM		 2425 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2426 {
2427 const char *msg;
2428
2429 if (bfd_big_endian (ibfd))
4ce794b7
AM		 2430 msg = _("%s: compiled for a big endian system "
2431 "and target is little endian");
5bd4f169 2432 else
4ce794b7
AM		 2433 msg = _("%s: compiled for a little endian system "
2434 "and target is big endian");
5bd4f169 2435
8f615d07 2436 (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
5bd4f169
AM		 2437
2438 bfd_set_error (bfd_error_wrong_format);
b34976b6 2439 return FALSE;
5bd4f169
AM		 2440 }
2441
b34976b6 2442 return TRUE;
5bd4f169 2443}
f0abc2a1 2444
5d35169e
AM		 2445/* Add extra PPC sections. */
2446
2447static struct bfd_elf_special_section const ppc64_elf_special_sections[]=
2448{
7dcb9820
AM		 2449 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2450 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2451 { ".plt", 4, 0, SHT_NOBITS, 0 },
2452 { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2453 { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2454 { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2455 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 2456};
2457
f0abc2a1
AM		 2458struct _ppc64_elf_section_data
2459{
2460 struct bfd_elf_section_data elf;
411e1bfb
AM		 2461
2462 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM		 2463 union
2464 {
411e1bfb 2465 /* Points to the function code section for local opd entries. */
f0abc2a1 2466 asection **func_sec;
411e1bfb 2467 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM		 2468 long *adjust;
2469 } opd;
411e1bfb
AM		 2470
2471 /* An array for toc sections, indexed by offset/8.
2472 Specifies the relocation symbol index used at a given toc offset. */
2473 unsigned *t_symndx;
f0abc2a1
AM		 2474};
2475
2476#define ppc64_elf_section_data(sec) \
411e1bfb 2477 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2478
2479static bfd_boolean
4ce794b7 2480ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1
AM		 2481{
2482 struct _ppc64_elf_section_data *sdata;
2483 bfd_size_type amt = sizeof (*sdata);
2484
4ce794b7 2485 sdata = bfd_zalloc (abfd, amt);
f0abc2a1
AM		 2486 if (sdata == NULL)
2487 return FALSE;
4ce794b7 2488 sec->used_by_bfd = sdata;
f0abc2a1
AM		 2489
2490 return _bfd_elf_new_section_hook (abfd, sec);
2491}
5bd4f169 2492\f
65f38f15
AM		 2493/* The following functions are specific to the ELF linker, while
2494 functions above are used generally. Those named ppc64_elf_* are
2495 called by the main ELF linker code. They appear in this file more
2496 or less in the order in which they are called. eg.
2497 ppc64_elf_check_relocs is called early in the link process,
2498 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 2499 called.
2500
2501 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2502 functions have both a function code symbol and a function descriptor
2503 symbol. A call to foo in a relocatable object file looks like:
2504
2505 . .text
2506 . x:
2507 . bl .foo
2508 . nop
2509
2510 The function definition in another object file might be:
2511
2512 . .section .opd
2513 . foo: .quad .foo
2514 . .quad .TOC.@tocbase
2515 . .quad 0
2516 .
2517 . .text
2518 . .foo: blr
2519
2520 When the linker resolves the call during a static link, the branch
2521 unsurprisingly just goes to .foo and the .opd information is unused.
2522 If the function definition is in a shared library, things are a little
2523 different: The call goes via a plt call stub, the opd information gets
2524 copied to the plt, and the linker patches the nop.
2525
2526 . x:
2527 . bl .foo_stub
2528 . ld 2,40(1)
2529 .
2530 .
2531 . .foo_stub:
2532 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2533 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM		 2534 . std 2,40(1) # this is the general idea
2535 . ld 11,0(12)
2536 . ld 2,8(12)
2537 . mtctr 11
2538 . ld 11,16(12)
2539 . bctr
2540 .
2541 . .section .plt
2542 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2543
2544 The "reloc ()" notation is supposed to indicate that the linker emits
2545 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2546 copying.
2547
2548 What are the difficulties here? Well, firstly, the relocations
2549 examined by the linker in check_relocs are against the function code
2550 sym .foo, while the dynamic relocation in the plt is emitted against
2551 the function descriptor symbol, foo. Somewhere along the line, we need
2552 to carefully copy dynamic link information from one symbol to the other.
2553 Secondly, the generic part of the elf linker will make .foo a dynamic
2554 symbol as is normal for most other backends. We need foo dynamic
2555 instead, at least for an application final link. However, when
2556 creating a shared library containing foo, we need to have both symbols
2557 dynamic so that references to .foo are satisfied during the early
2558 stages of linking. Otherwise the linker might decide to pull in a
41bd81ab 2559 definition from some other object, eg. a static library. */
65f38f15
AM		 2560
2561/* The linker needs to keep track of the number of relocs that it
2562 decides to copy as dynamic relocs in check_relocs for each symbol.
2563 This is so that it can later discard them if they are found to be
2564 unnecessary. We store the information in a field extending the
2565 regular ELF linker hash table. */
2566
2567struct ppc_dyn_relocs
2568{
2569 struct ppc_dyn_relocs *next;
2570
2571 /* The input section of the reloc. */
2572 asection *sec;
2573
2574 /* Total number of relocs copied for the input section. */
2575 bfd_size_type count;
2576
2577 /* Number of pc-relative relocs copied for the input section. */
2578 bfd_size_type pc_count;
2579};
2580
411e1bfb
AM		 2581/* Track GOT entries needed for a given symbol. We might need more
2582 than one got entry per symbol. */
2583struct got_entry
2584{
2585 struct got_entry *next;
2586
e7b938ca 2587 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM		 2588 bfd_vma addend;
2589
e717da7e
AM		 2590 /* Unlike other ELF targets, we use separate GOT entries for the same
2591 symbol referenced from different input files. This is to support
2592 automatic multiple TOC/GOT sections, where the TOC base can vary
2593 from one input file to another.
2594
2595 Point to the BFD owning this GOT entry. */
2596 bfd *owner;
2597
2598 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2599 TLS_TPREL or TLS_DTPREL for tls entries. */
2600 char tls_type;
2601
e7b938ca 2602 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM		 2603 union
2604 {
2605 bfd_signed_vma refcount;
2606 bfd_vma offset;
2607 } got;
411e1bfb
AM		 2608};
2609
2610/* The same for PLT. */
2611struct plt_entry
2612{
2613 struct plt_entry *next;
2614
2615 bfd_vma addend;
2616
2617 union
2618 {
2619 bfd_signed_vma refcount;
2620 bfd_vma offset;
2621 } plt;
2622};
2623
65f38f15 2624/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM		 2625 selects those that must be copied when linking a shared library,
2626 even when the symbol is local. */
65f38f15 2627
411e1bfb 2628#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM		 2629 ((RTYPE) != R_PPC64_REL32 \
2630 && (RTYPE) != R_PPC64_REL64 \
04c9666a 2631 && (RTYPE) != R_PPC64_REL30)
65f38f15 2632
f4656909
AM		 2633/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2634 copying dynamic variables from a shared lib into an app's dynbss
2635 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 2636 shared lib. With code that gcc generates, it's vital that this be
2637 enabled; In the PowerPC64 ABI, the address of a function is actually
2638 the address of a function descriptor, which resides in the .opd
2639 section. gcc uses the descriptor directly rather than going via the
2640 GOT as some other ABI's do, which means that initialized function
2641 pointers must reference the descriptor. Thus, a function pointer
2642 initialized to the address of a function in a shared library will
2643 either require a copy reloc, or a dynamic reloc. Using a copy reloc
2644 redefines the function desctriptor symbol to point to the copy. This
2645 presents a problem as a plt entry for that function is also
2646 initialized from the function descriptor symbol and the copy reloc
2647 may not be initialized first. */
a23b6845 2648#define ELIMINATE_COPY_RELOCS 1
f4656909 2649
721956f4
AM		 2650/* Section name for stubs is the associated section name plus this
2651 string. */
2652#define STUB_SUFFIX ".stub"
2653
2654/* Linker stubs.
2655 ppc_stub_long_branch:
2656 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2657 destination, but a 24 bit branch in a stub section will reach.
2658 . b dest
2659
2660 ppc_stub_plt_branch:
2661 Similar to the above, but a 24 bit branch in the stub section won't
2662 reach its destination.
87e226ce
AM		 2663 . addis %r12,%r2,xxx@toc@ha
2664 . ld %r11,xxx@toc@l(%r12)
721956f4
AM		 2665 . mtctr %r11
2666 . bctr
2667
2668 ppc_stub_plt_call:
2669 Used to call a function in a shared library.
87e226ce 2670 . addis %r12,%r2,xxx@toc@ha
721956f4 2671 . std %r2,40(%r1)
87e226ce
AM		 2672 . ld %r11,xxx+0@toc@l(%r12)
2673 . ld %r2,xxx+8@toc@l(%r12)
721956f4 2674 . mtctr %r11
87e226ce 2675 . ld %r11,xxx+16@toc@l(%r12)
721956f4 2676 . bctr
ad8e1ba5
AM		 2677
2678 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
2679 code to adjust the value and save r2 to support multiple toc sections.
2680 A ppc_stub_long_branch with an r2 offset looks like:
2681 . std %r2,40(%r1)
2682 . addis %r2,%r2,off@ha
2683 . addi %r2,%r2,off@l
2684 . b dest
2685
2686 A ppc_stub_plt_branch with an r2 offset looks like:
2687 . std %r2,40(%r1)
2688 . addis %r12,%r2,xxx@toc@ha
2689 . ld %r11,xxx@toc@l(%r12)
2690 . addis %r2,%r2,off@ha
2691 . addi %r2,%r2,off@l
2692 . mtctr %r11
2693 . bctr
721956f4
AM		 2694*/
2695
2696enum ppc_stub_type {
2697 ppc_stub_none,
2698 ppc_stub_long_branch,
ad8e1ba5 2699 ppc_stub_long_branch_r2off,
721956f4 2700 ppc_stub_plt_branch,
ad8e1ba5 2701 ppc_stub_plt_branch_r2off,
721956f4
AM		 2702 ppc_stub_plt_call
2703};
2704
2705struct ppc_stub_hash_entry {
2706
2707 /* Base hash table entry structure. */
2708 struct bfd_hash_entry root;
2709
ad8e1ba5
AM		 2710 enum ppc_stub_type stub_type;
2711
721956f4
AM		 2712 /* The stub section. */
2713 asection *stub_sec;
2714
2715 /* Offset within stub_sec of the beginning of this stub. */
2716 bfd_vma stub_offset;
2717
2718 /* Given the symbol's value and its section we can determine its final
2719 value when building the stubs (so the stub knows where to jump. */
2720 bfd_vma target_value;
2721 asection *target_section;
2722
721956f4
AM		 2723 /* The symbol table entry, if any, that this was derived from. */
2724 struct ppc_link_hash_entry *h;
2725
411e1bfb
AM		 2726 /* And the reloc addend that this was derived from. */
2727 bfd_vma addend;
2728
721956f4
AM		 2729 /* Where this stub is being called from, or, in the case of combined
2730 stub sections, the first input section in the group. */
2731 asection *id_sec;
2732};
2733
2734struct ppc_branch_hash_entry {
2735
2736 /* Base hash table entry structure. */
2737 struct bfd_hash_entry root;
2738
2739 /* Offset within .branch_lt. */
2740 unsigned int offset;
2741
2742 /* Generation marker. */
2743 unsigned int iter;
2744};
65f38f15
AM		 2745
2746struct ppc_link_hash_entry
2747{
2748 struct elf_link_hash_entry elf;
2749
721956f4
AM		 2750 /* A pointer to the most recently used stub hash entry against this
2751 symbol. */
2752 struct ppc_stub_hash_entry *stub_cache;
2753
65f38f15
AM		 2754 /* Track dynamic relocs copied for this symbol. */
2755 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 2756
721956f4
AM		 2757 /* Link between function code and descriptor symbols. */
2758 struct elf_link_hash_entry *oh;
2759
e86ce104
AM		 2760 /* Flag function code and descriptor symbols. */
2761 unsigned int is_func:1;
2762 unsigned int is_func_descriptor:1;
1e2f5b6e 2763 unsigned int is_entry:1;
411e1bfb
AM		 2764
2765 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 2766 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2767 corresponding relocs are encountered during check_relocs.
2768 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2769 indicate the corresponding GOT entry type is not needed.
2770 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2771 a TPREL one. We use a separate flag rather than setting TPREL
2772 just for convenience in distinguishing the two cases. */
2773#define TLS_GD 1 /* GD reloc. */
2774#define TLS_LD 2 /* LD reloc. */
2775#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2776#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2777#define TLS_TLS 16 /* Any TLS reloc. */
2778#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2779#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2780 char tls_mask;
65f38f15
AM		 2781};
2782
2783/* ppc64 ELF linker hash table. */
2784
2785struct ppc_link_hash_table
2786{
2787 struct elf_link_hash_table elf;
2788
721956f4
AM		 2789 /* The stub hash table. */
2790 struct bfd_hash_table stub_hash_table;
2791
2792 /* Another hash table for plt_branch stubs. */
2793 struct bfd_hash_table branch_hash_table;
2794
2795 /* Linker stub bfd. */
2796 bfd *stub_bfd;
2797
2798 /* Linker call-backs. */
4ce794b7
AM		 2799 asection * (*add_stub_section) (const char *, asection *);
2800 void (*layout_sections_again) (void);
721956f4
AM		 2801
2802 /* Array to keep track of which stub sections have been created, and
2803 information on stub grouping. */
2804 struct map_stub {
2805 /* This is the section to which stubs in the group will be attached. */
2806 asection *link_sec;
2807 /* The stub section. */
2808 asection *stub_sec;
ad8e1ba5
AM		 2809 /* Along with elf_gp, specifies the TOC pointer used in this group. */
2810 bfd_vma toc_off;
721956f4
AM		 2811 } *stub_group;
2812
ad8e1ba5
AM		 2813 /* Support for multiple toc sections. */
2814 unsigned int no_multi_toc;
2815 unsigned int multi_toc_needed;
2816
2817 /* Temp used when calculating TOC pointers. */
2818 bfd_vma toc_curr;
2819
8f3bab57
AM		 2820 /* Highest input section id. */
2821 int top_id;
2822
734b6cf9
AM		 2823 /* Highest output section index. */
2824 int top_index;
2825
2826 /* List of input sections for each output section. */
2827 asection **input_list;
721956f4 2828
65f38f15 2829 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 2830 asection *got;
4ce794b7
AM		 2831 asection *plt;
2832 asection *relplt;
2833 asection *dynbss;
2834 asection *relbss;
2835 asection *glink;
82bd7b59 2836 asection *sfpr;
4ce794b7
AM		 2837 asection *brlt;
2838 asection *relbrlt;
ec338859 2839
411e1bfb
AM		 2840 /* Shortcut to .__tls_get_addr. */
2841 struct elf_link_hash_entry *tls_get_addr;
2842
9b5ecbd0
AM		 2843 /* Statistics. */
2844 unsigned long stub_count[ppc_stub_plt_call];
2845
ad8e1ba5
AM		 2846 /* Set if we should emit symbols for stubs. */
2847 unsigned int emit_stub_syms;
2848
5d1634d7 2849 /* Set on error. */
721956f4
AM		 2850 unsigned int stub_error;
2851
2852 /* Flag set when small branches are detected. Used to
2853 select suitable defaults for the stub group size. */
2854 unsigned int has_14bit_branch;
2855
805fc799
AM		 2856 /* Set if we detect a reference undefined weak symbol. */
2857 unsigned int have_undefweak;
2858
721956f4
AM		 2859 /* Incremented every time we size stubs. */
2860 unsigned int stub_iteration;
5d1634d7 2861
ec338859
AM		 2862 /* Small local sym to section mapping cache. */
2863 struct sym_sec_cache sym_sec;
65f38f15
AM		 2864};
2865
2866/* Get the ppc64 ELF linker hash table from a link_info structure. */
2867
2868#define ppc_hash_table(p) \
2869 ((struct ppc_link_hash_table *) ((p)->hash))
2870
721956f4
AM		 2871#define ppc_stub_hash_lookup(table, string, create, copy) \
2872 ((struct ppc_stub_hash_entry *) \
2873 bfd_hash_lookup ((table), (string), (create), (copy)))
2874
2875#define ppc_branch_hash_lookup(table, string, create, copy) \
2876 ((struct ppc_branch_hash_entry *) \
2877 bfd_hash_lookup ((table), (string), (create), (copy)))
2878
2879/* Create an entry in the stub hash table. */
2880
2881static struct bfd_hash_entry *
4ce794b7
AM		 2882stub_hash_newfunc (struct bfd_hash_entry *entry,
2883 struct bfd_hash_table *table,
2884 const char *string)
721956f4
AM		 2885{
2886 /* Allocate the structure if it has not already been allocated by a
2887 subclass. */
2888 if (entry == NULL)
2889 {
2890 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
2891 if (entry == NULL)
2892 return entry;
2893 }
2894
2895 /* Call the allocation method of the superclass. */
2896 entry = bfd_hash_newfunc (entry, table, string);
2897 if (entry != NULL)
2898 {
2899 struct ppc_stub_hash_entry *eh;
2900
2901 /* Initialize the local fields. */
2902 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 2903 eh->stub_type = ppc_stub_none;
721956f4
AM		 2904 eh->stub_sec = NULL;
2905 eh->stub_offset = 0;
2906 eh->target_value = 0;
2907 eh->target_section = NULL;
721956f4
AM		 2908 eh->h = NULL;
2909 eh->id_sec = NULL;
2910 }
2911
2912 return entry;
2913}
2914
2915/* Create an entry in the branch hash table. */
2916
2917static struct bfd_hash_entry *
4ce794b7
AM		 2918branch_hash_newfunc (struct bfd_hash_entry *entry,
2919 struct bfd_hash_table *table,
2920 const char *string)
721956f4
AM		 2921{
2922 /* Allocate the structure if it has not already been allocated by a
2923 subclass. */
2924 if (entry == NULL)
2925 {
2926 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
2927 if (entry == NULL)
2928 return entry;
2929 }
2930
2931 /* Call the allocation method of the superclass. */
2932 entry = bfd_hash_newfunc (entry, table, string);
2933 if (entry != NULL)
2934 {
2935 struct ppc_branch_hash_entry *eh;
2936
2937 /* Initialize the local fields. */
2938 eh = (struct ppc_branch_hash_entry *) entry;
2939 eh->offset = 0;
2940 eh->iter = 0;
2941 }
2942
2943 return entry;
2944}
2945
65f38f15
AM		 2946/* Create an entry in a ppc64 ELF linker hash table. */
2947
2948static struct bfd_hash_entry *
4ce794b7
AM		 2949link_hash_newfunc (struct bfd_hash_entry *entry,
2950 struct bfd_hash_table *table,
2951 const char *string)
65f38f15
AM		 2952{
2953 /* Allocate the structure if it has not already been allocated by a
2954 subclass. */
2955 if (entry == NULL)
2956 {
2957 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
2958 if (entry == NULL)
2959 return entry;
2960 }
2961
2962 /* Call the allocation method of the superclass. */
2963 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2964 if (entry != NULL)
2965 {
2966 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
2967
721956f4 2968 eh->stub_cache = NULL;
65f38f15 2969 eh->dyn_relocs = NULL;
721956f4 2970 eh->oh = NULL;
e86ce104
AM		 2971 eh->is_func = 0;
2972 eh->is_func_descriptor = 0;
1e2f5b6e 2973 eh->is_entry = 0;
e7b938ca 2974 eh->tls_mask = 0;
65f38f15
AM		 2975 }
2976
2977 return entry;
2978}
2979
2980/* Create a ppc64 ELF linker hash table. */
2981
2982static struct bfd_link_hash_table *
4ce794b7 2983ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 2984{
2985 struct ppc_link_hash_table *htab;
2986 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
2987
4ce794b7 2988 htab = bfd_zmalloc (amt);
65f38f15
AM		 2989 if (htab == NULL)
2990 return NULL;
2991
2992 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
2993 {
e2d34d7d 2994 free (htab);
65f38f15
AM		 2995 return NULL;
2996 }
2997
721956f4
AM		 2998 /* Init the stub hash table too. */
2999 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
3000 return NULL;
3001
3002 /* And the branch hash table. */
3003 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
3004 return NULL;
3005
3254fd24
AM		 3006 /* Initializing two fields of the union is just cosmetic. We really
3007 only care about glist, but when compiled on a 32-bit host the
3008 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3009 debugger inspection of these fields look nicer. */
3010 htab->elf.init_refcount.refcount = 0;
3011 htab->elf.init_refcount.glist = NULL;
3012 htab->elf.init_offset.offset = 0;
3013 htab->elf.init_offset.glist = NULL;
3014
65f38f15
AM		 3015 return &htab->elf.root;
3016}
3017
721956f4
AM		 3018/* Free the derived linker hash table. */
3019
3020static void
4ce794b7 3021ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM		 3022{
3023 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3024
3025 bfd_hash_table_free (&ret->stub_hash_table);
3026 bfd_hash_table_free (&ret->branch_hash_table);
3027 _bfd_generic_link_hash_table_free (hash);
3028}
3029
e717da7e
AM		 3030/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3031
3032void
3033ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3034{
3035 struct ppc_link_hash_table *htab;
3036
3037 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3038
3039/* Always hook our dynamic sections into the first bfd, which is the
3040 linker created stub bfd. This ensures that the GOT header is at
3041 the start of the output TOC section. */
3042 htab = ppc_hash_table (info);
3043 htab->stub_bfd = abfd;
3044 htab->elf.dynobj = abfd;
3045}
3046
721956f4
AM		 3047/* Build a name for an entry in the stub hash table. */
3048
3049static char *
4ce794b7
AM		 3050ppc_stub_name (const asection *input_section,
3051 const asection *sym_sec,
3052 const struct ppc_link_hash_entry *h,
3053 const Elf_Internal_Rela *rel)
721956f4
AM		 3054{
3055 char *stub_name;
3056 bfd_size_type len;
3057
3058 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3059 offsets from a sym as a branch target? In fact, we could
3060 probably assume the addend is always zero. */
3061 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3062
3063 if (h)
3064 {
3065 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3066 stub_name = bfd_malloc (len);
3067 if (stub_name != NULL)
3068 {
97b639ba 3069 sprintf (stub_name, "%08x.%s+%x",
721956f4
AM		 3070 input_section->id & 0xffffffff,
3071 h->elf.root.root.string,
3072 (int) rel->r_addend & 0xffffffff);
3073 }
3074 }
3075 else
3076 {
ad8e1ba5 3077 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4
AM		 3078 stub_name = bfd_malloc (len);
3079 if (stub_name != NULL)
3080 {
97b639ba 3081 sprintf (stub_name, "%08x.%x:%x+%x",
721956f4
AM		 3082 input_section->id & 0xffffffff,
3083 sym_sec->id & 0xffffffff,
3084 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3085 (int) rel->r_addend & 0xffffffff);
3086 }
3087 }
3088 return stub_name;
3089}
3090
3091/* Look up an entry in the stub hash. Stub entries are cached because
3092 creating the stub name takes a bit of time. */
3093
3094static struct ppc_stub_hash_entry *
4ce794b7
AM		 3095ppc_get_stub_entry (const asection *input_section,
3096 const asection *sym_sec,
3097 struct elf_link_hash_entry *hash,
3098 const Elf_Internal_Rela *rel,
3099 struct ppc_link_hash_table *htab)
721956f4
AM		 3100{
3101 struct ppc_stub_hash_entry *stub_entry;
3102 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3103 const asection *id_sec;
3104
3105 /* If this input section is part of a group of sections sharing one
3106 stub section, then use the id of the first section in the group.
3107 Stub names need to include a section id, as there may well be
3108 more than one stub used to reach say, printf, and we need to
3109 distinguish between them. */
3110 id_sec = htab->stub_group[input_section->id].link_sec;
3111
3112 if (h != NULL && h->stub_cache != NULL
3113 && h->stub_cache->h == h
3114 && h->stub_cache->id_sec == id_sec)
3115 {
3116 stub_entry = h->stub_cache;
3117 }
3118 else
3119 {
3120 char *stub_name;
3121
3122 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3123 if (stub_name == NULL)
3124 return NULL;
3125
3126 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3127 stub_name, FALSE, FALSE);
721956f4
AM		 3128 if (h != NULL)
3129 h->stub_cache = stub_entry;
3130
3131 free (stub_name);
3132 }
3133
3134 return stub_entry;
3135}
3136
3137/* Add a new stub entry to the stub hash. Not all fields of the new
3138 stub entry are initialised. */
3139
3140static struct ppc_stub_hash_entry *
4ce794b7
AM		 3141ppc_add_stub (const char *stub_name,
3142 asection *section,
3143 struct ppc_link_hash_table *htab)
721956f4
AM		 3144{
3145 asection *link_sec;
3146 asection *stub_sec;
3147 struct ppc_stub_hash_entry *stub_entry;
3148
3149 link_sec = htab->stub_group[section->id].link_sec;
3150 stub_sec = htab->stub_group[section->id].stub_sec;
3151 if (stub_sec == NULL)
3152 {
3153 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3154 if (stub_sec == NULL)
3155 {
d4c88bbb 3156 size_t namelen;
721956f4
AM		 3157 bfd_size_type len;
3158 char *s_name;
3159
d4c88bbb
AM		 3160 namelen = strlen (link_sec->name);
3161 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM		 3162 s_name = bfd_alloc (htab->stub_bfd, len);
3163 if (s_name == NULL)
3164 return NULL;
3165
d4c88bbb
AM		 3166 memcpy (s_name, link_sec->name, namelen);
3167 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM		 3168 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3169 if (stub_sec == NULL)
3170 return NULL;
3171 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3172 }
3173 htab->stub_group[section->id].stub_sec = stub_sec;
3174 }
3175
3176 /* Enter this entry into the linker stub hash table. */
3177 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3178 TRUE, FALSE);
721956f4
AM		 3179 if (stub_entry == NULL)
3180 {
3181 (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
3182 bfd_archive_filename (section->owner),
3183 stub_name);
3184 return NULL;
3185 }
3186
3187 stub_entry->stub_sec = stub_sec;
3188 stub_entry->stub_offset = 0;
3189 stub_entry->id_sec = link_sec;
3190 return stub_entry;
3191}
3192
82bd7b59
AM		 3193/* Create sections for linker generated code. */
3194
b34976b6 3195static bfd_boolean
4ce794b7 3196create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM		 3197{
3198 struct ppc_link_hash_table *htab;
3199 flagword flags;
3200
3201 htab = ppc_hash_table (info);
3202
3203 /* Create .sfpr for code to save and restore fp regs. */
3204 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3205 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
721956f4 3206 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
82bd7b59
AM		 3207 if (htab->sfpr == NULL
3208 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3209 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3210 return FALSE;
82bd7b59 3211
721956f4 3212 /* Create .glink for lazy dynamic linking support. */
4ce794b7
AM		 3213 htab->glink = bfd_make_section_anyway (dynobj, ".glink");
3214 if (htab->glink == NULL
3215 || ! bfd_set_section_flags (dynobj, htab->glink, flags)
3216 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
b34976b6 3217 return FALSE;
82bd7b59 3218
721956f4
AM		 3219 /* Create .branch_lt for plt_branch stubs. */
3220 flags = (SEC_ALLOC | SEC_LOAD
3221 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3222 htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3223 if (htab->brlt == NULL
3224 || ! bfd_set_section_flags (dynobj, htab->brlt, flags)
3225 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3226 return FALSE;
721956f4
AM		 3227
3228 if (info->shared)
3229 {
3230 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3231 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3232 htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
3233 if (!htab->relbrlt
3234 || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags)
3235 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
b34976b6 3236 return FALSE;
721956f4 3237 }
b34976b6 3238 return TRUE;
82bd7b59
AM		 3239}
3240
e717da7e
AM		 3241/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3242 not already done. */
65f38f15 3243
b34976b6 3244static bfd_boolean
e717da7e 3245create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3246{
e717da7e
AM		 3247 asection *got, *relgot;
3248 flagword flags;
3249 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3250
4ce794b7 3251 if (!htab->got)
e717da7e
AM		 3252 {
3253 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3254 return FALSE;
3255
3256 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3257 if (!htab->got)
3258 abort ();
3259 }
3260
3261 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3262 | SEC_LINKER_CREATED);
3263
3264 got = bfd_make_section (abfd, ".got");
3265 if (!got
3266 || !bfd_set_section_flags (abfd, got, flags)
3267 || !bfd_set_section_alignment (abfd, got, 3))
3268 return FALSE;
65f38f15 3269
e717da7e
AM		 3270 relgot = bfd_make_section (abfd, ".rela.got");
3271 if (!relgot
3272 || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY)
3273 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3274 return FALSE;
e717da7e
AM		 3275
3276 ppc64_elf_tdata (abfd)->got = got;
3277 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3278 return TRUE;
65f38f15 3279}
5bd4f169 3280
82bd7b59 3281/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3282
b34976b6 3283static bfd_boolean
4ce794b7 3284ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3285{
65f38f15 3286 struct ppc_link_hash_table *htab;
5bd4f169 3287
65f38f15 3288 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3289 return FALSE;
65f38f15 3290
e717da7e
AM		 3291 htab = ppc_hash_table (info);
3292 if (!htab->got)
3293 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM		 3294 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3295 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3296 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3297 if (!info->shared)
4ce794b7 3298 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3299
e717da7e 3300 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3301 || (!info->shared && !htab->relbss))
65f38f15
AM		 3302 abort ();
3303
b34976b6 3304 return TRUE;
5bd4f169
AM		 3305}
3306
65f38f15
AM		 3307/* Copy the extra info we tack onto an elf_link_hash_entry. */
3308
3309static void
9c5bfbb7
AM		 3310ppc64_elf_copy_indirect_symbol
3311 (const struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3312 struct elf_link_hash_entry *dir,
3313 struct elf_link_hash_entry *ind)
65f38f15
AM		 3314{
3315 struct ppc_link_hash_entry *edir, *eind;
81848ca0 3316 flagword mask;
65f38f15
AM		 3317
3318 edir = (struct ppc_link_hash_entry *) dir;
3319 eind = (struct ppc_link_hash_entry *) ind;
3320
411e1bfb 3321 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3322 if (eind->dyn_relocs != NULL)
65f38f15 3323 {
bbd7ec4a
AM		 3324 if (edir->dyn_relocs != NULL)
3325 {
3326 struct ppc_dyn_relocs **pp;
3327 struct ppc_dyn_relocs *p;
3328
411e1bfb 3329 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM		 3330 abort ();
3331
3332 /* Add reloc counts against the weak sym to the strong sym
3333 list. Merge any entries against the same section. */
3334 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3335 {
3336 struct ppc_dyn_relocs *q;
3337
3338 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3339 if (q->sec == p->sec)
3340 {
3341 q->pc_count += p->pc_count;
3342 q->count += p->count;
3343 *pp = p->next;
3344 break;
3345 }
3346 if (q == NULL)
3347 pp = &p->next;
3348 }
3349 *pp = edir->dyn_relocs;
3350 }
3351
65f38f15
AM		 3352 edir->dyn_relocs = eind->dyn_relocs;
3353 eind->dyn_relocs = NULL;
3354 }
65f38f15 3355
6349e628
AM		 3356 edir->is_func |= eind->is_func;
3357 edir->is_func_descriptor |= eind->is_func_descriptor;
3358 edir->is_entry |= eind->is_entry;
58ac9f71 3359 edir->tls_mask |= eind->tls_mask;
6349e628 3360
81848ca0 3361 mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR
3addb0a9
DJ		 3362 | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF
3363 | ELF_LINK_HASH_NEEDS_PLT);
81848ca0
AM		 3364 /* If called to transfer flags for a weakdef during processing
3365 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
3366 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3367 if (ELIMINATE_COPY_RELOCS
3368 && eind->elf.root.type != bfd_link_hash_indirect
3369 && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
3370 mask &= ~ELF_LINK_NON_GOT_REF;
3371
3372 edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask;
6349e628
AM		 3373
3374 /* If we were called to copy over info for a weak sym, that's all. */
3375 if (eind->elf.root.type != bfd_link_hash_indirect)
3376 return;
3377
81848ca0
AM		 3378 /* Copy over got entries that we may have already seen to the
3379 symbol which just became indirect. */
411e1bfb
AM		 3380 if (eind->elf.got.glist != NULL)
3381 {
3382 if (edir->elf.got.glist != NULL)
3383 {
3384 struct got_entry **entp;
3385 struct got_entry *ent;
3386
3387 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3388 {
3389 struct got_entry *dent;
3390
3391 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3392 if (dent->addend == ent->addend
e717da7e 3393 && dent->owner == ent->owner
411e1bfb
AM		 3394 && dent->tls_type == ent->tls_type)
3395 {
3396 dent->got.refcount += ent->got.refcount;
3397 *entp = ent->next;
3398 break;
3399 }
3400 if (dent == NULL)
3401 entp = &ent->next;
3402 }
3403 *entp = edir->elf.got.glist;
3404 }
3405
3406 edir->elf.got.glist = eind->elf.got.glist;
3407 eind->elf.got.glist = NULL;
3408 }
3409
3410 /* And plt entries. */
3411 if (eind->elf.plt.plist != NULL)
3412 {
3413 if (edir->elf.plt.plist != NULL)
3414 {
3415 struct plt_entry **entp;
3416 struct plt_entry *ent;
3417
3418 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3419 {
3420 struct plt_entry *dent;
3421
3422 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3423 if (dent->addend == ent->addend)
3424 {
3425 dent->plt.refcount += ent->plt.refcount;
3426 *entp = ent->next;
3427 break;
3428 }
3429 if (dent == NULL)
3430 entp = &ent->next;
3431 }
3432 *entp = edir->elf.plt.plist;
3433 }
3434
3435 edir->elf.plt.plist = eind->elf.plt.plist;
3436 eind->elf.plt.plist = NULL;
3437 }
3438
411e1bfb
AM		 3439 if (edir->elf.dynindx == -1)
3440 {
3441 edir->elf.dynindx = eind->elf.dynindx;
3442 edir->elf.dynstr_index = eind->elf.dynstr_index;
3443 eind->elf.dynindx = -1;
3444 eind->elf.dynstr_index = 0;
3445 }
3446 else
3447 BFD_ASSERT (eind->elf.dynindx == -1);
3448}
3449
3450/* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3451 symbols undefined on the command-line. */
3452
3453bfd_boolean
4ce794b7 3454ppc64_elf_mark_entry_syms (struct bfd_link_info *info)
411e1bfb
AM		 3455{
3456 struct ppc_link_hash_table *htab;
3457 struct bfd_sym_chain *sym;
3458
3459 htab = ppc_hash_table (info);
3460 for (sym = info->gc_sym_list; sym; sym = sym->next)
3461 {
3462 struct elf_link_hash_entry *h;
3463
3464 h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
3465 if (h != NULL)
3466 ((struct ppc_link_hash_entry *) h)->is_entry = 1;
3467 }
3468 return TRUE;
3469}
3470
3471static bfd_boolean
4ce794b7
AM		 3472update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
3473 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 3474{
3475 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 3476 char *local_got_tls_masks;
411e1bfb
AM		 3477
3478 if (local_got_ents == NULL)
3479 {
3480 bfd_size_type size = symtab_hdr->sh_info;
3481
e7b938ca 3482 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 3483 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM		 3484 if (local_got_ents == NULL)
3485 return FALSE;
3486 elf_local_got_ents (abfd) = local_got_ents;
3487 }
3488
3489 if ((tls_type & TLS_EXPLICIT) == 0)
3490 {
3491 struct got_entry *ent;
3492
3493 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 3494 if (ent->addend == r_addend
3495 && ent->owner == abfd
3496 && ent->tls_type == tls_type)
411e1bfb
AM		 3497 break;
3498 if (ent == NULL)
3499 {
3500 bfd_size_type amt = sizeof (*ent);
4ce794b7 3501 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 3502 if (ent == NULL)
3503 return FALSE;
3504 ent->next = local_got_ents[r_symndx];
3505 ent->addend = r_addend;
e717da7e 3506 ent->owner = abfd;
411e1bfb
AM		 3507 ent->tls_type = tls_type;
3508 ent->got.refcount = 0;
3509 local_got_ents[r_symndx] = ent;
3510 }
3511 ent->got.refcount += 1;
3512 }
3513
e7b938ca
AM		 3514 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
3515 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 3516 return TRUE;
65f38f15
AM		 3517}
3518
411e1bfb 3519static bfd_boolean
4ce794b7 3520update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 3521{
411e1bfb 3522 struct plt_entry *ent;
1e2f5b6e 3523
411e1bfb
AM		 3524 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
3525 if (ent->addend == addend)
3526 break;
3527 if (ent == NULL)
1e2f5b6e 3528 {
411e1bfb 3529 bfd_size_type amt = sizeof (*ent);
4ce794b7 3530 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 3531 if (ent == NULL)
3532 return FALSE;
3533 ent->next = eh->elf.plt.plist;
3534 ent->addend = addend;
3535 ent->plt.refcount = 0;
3536 eh->elf.plt.plist = ent;
1e2f5b6e 3537 }
411e1bfb
AM		 3538 ent->plt.refcount += 1;
3539 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3540 eh->is_func = 1;
b34976b6 3541 return TRUE;
1e2f5b6e
AM		 3542}
3543
50bc7936
AM		 3544/* Find the function descriptor hash entry from the given function code
3545 hash entry FH. Link the entries via their OH fields. */
3546static struct ppc_link_hash_entry *
3547get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
3548{
3549 struct ppc_link_hash_entry *fdh = (struct ppc_link_hash_entry *) fh->oh;
3550
3551 if (fdh == NULL)
3552 {
3553 const char *fd_name = fh->elf.root.root.string + 1;
3554
3555 fdh = (struct ppc_link_hash_entry *)
3556 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
3557 if (fdh != NULL)
3558 {
3559 fdh->is_func_descriptor = 1;
3560 fdh->oh = &fh->elf;
3561 fh->is_func = 1;
3562 fh->oh = &fdh->elf;
3563 }
3564 }
3565
3566 return fdh;
3567}
3568
5bd4f169 3569/* Look through the relocs for a section during the first phase, and
65f38f15 3570 calculate needed space in the global offset table, procedure
5d1634d7 3571 linkage table, and dynamic reloc sections. */
5bd4f169 3572
b34976b6 3573static bfd_boolean
4ce794b7
AM		 3574ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
3575 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 3576{
65f38f15 3577 struct ppc_link_hash_table *htab;
5bd4f169
AM		 3578 Elf_Internal_Shdr *symtab_hdr;
3579 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3580 const Elf_Internal_Rela *rel;
3581 const Elf_Internal_Rela *rel_end;
5bd4f169 3582 asection *sreloc;
1e2f5b6e 3583 asection **opd_sym_map;
5bd4f169 3584
1049f94e 3585 if (info->relocatable)
b34976b6 3586 return TRUE;
5bd4f169 3587
65f38f15 3588 htab = ppc_hash_table (info);
5bd4f169 3589 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM		 3590
3591 sym_hashes = elf_sym_hashes (abfd);
3592 sym_hashes_end = (sym_hashes
1e2f5b6e
AM		 3593 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
3594 - symtab_hdr->sh_info);
5bd4f169
AM		 3595
3596 sreloc = NULL;
1e2f5b6e
AM		 3597 opd_sym_map = NULL;
3598 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
3599 {
3600 /* Garbage collection needs some extra help with .opd sections.
3601 We don't want to necessarily keep everything referenced by
3602 relocs in .opd, as that would keep all functions. Instead,
3603 if we reference an .opd symbol (a function descriptor), we
3604 want to keep the function code symbol's section. This is
3605 easy for global symbols, but for local syms we need to keep
3606 information about the associated function section. Later, if
3607 edit_opd deletes entries, we'll use this array to adjust
3608 local syms in .opd. */
3609 union opd_info {
3610 asection *func_section;
3611 long entry_adjust;
3612 };
3613 bfd_size_type amt;
3614
3615 amt = sec->_raw_size * sizeof (union opd_info) / 24;
4ce794b7 3616 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 3617 if (opd_sym_map == NULL)
b34976b6 3618 return FALSE;
f0abc2a1 3619 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 3620 }
5bd4f169 3621
82bd7b59
AM		 3622 if (htab->sfpr == NULL
3623 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 3624 return FALSE;
82bd7b59 3625
5bd4f169
AM		 3626 rel_end = relocs + sec->reloc_count;
3627 for (rel = relocs; rel < rel_end; rel++)
3628 {
3629 unsigned long r_symndx;
3630 struct elf_link_hash_entry *h;
04c9666a 3631 enum elf_ppc64_reloc_type r_type;
411e1bfb 3632 int tls_type = 0;
5bd4f169
AM		 3633
3634 r_symndx = ELF64_R_SYM (rel->r_info);
3635 if (r_symndx < symtab_hdr->sh_info)
3636 h = NULL;
3637 else
3638 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3639
4ce794b7 3640 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 3641 switch (r_type)
5bd4f169 3642 {
411e1bfb
AM		 3643 case R_PPC64_GOT_TLSLD16:
3644 case R_PPC64_GOT_TLSLD16_LO:
3645 case R_PPC64_GOT_TLSLD16_HI:
3646 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 3647 ppc64_tlsld_got (abfd)->refcount += 1;
951fd09b 3648 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 3649 goto dogottls;
3650
3651 case R_PPC64_GOT_TLSGD16:
3652 case R_PPC64_GOT_TLSGD16_LO:
3653 case R_PPC64_GOT_TLSGD16_HI:
3654 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 3655 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 3656 goto dogottls;
3657
3658 case R_PPC64_GOT_TPREL16_DS:
3659 case R_PPC64_GOT_TPREL16_LO_DS:
3660 case R_PPC64_GOT_TPREL16_HI:
3661 case R_PPC64_GOT_TPREL16_HA:
3662 if (info->shared)
3663 info->flags |= DF_STATIC_TLS;
3664 tls_type = TLS_TLS | TLS_TPREL;
3665 goto dogottls;
3666
3667 case R_PPC64_GOT_DTPREL16_DS:
3668 case R_PPC64_GOT_DTPREL16_LO_DS:
3669 case R_PPC64_GOT_DTPREL16_HI:
3670 case R_PPC64_GOT_DTPREL16_HA:
3671 tls_type = TLS_TLS | TLS_DTPREL;
3672 dogottls:
3673 sec->has_tls_reloc = 1;
3674 /* Fall thru */
3675
5bd4f169 3676 case R_PPC64_GOT16:
5bd4f169 3677 case R_PPC64_GOT16_DS:
65f38f15
AM		 3678 case R_PPC64_GOT16_HA:
3679 case R_PPC64_GOT16_HI:
3680 case R_PPC64_GOT16_LO:
5bd4f169 3681 case R_PPC64_GOT16_LO_DS:
65f38f15 3682 /* This symbol requires a global offset table entry. */
ad8e1ba5 3683 sec->has_gp_reloc = 1;
e717da7e
AM		 3684 if (ppc64_elf_tdata (abfd)->got == NULL
3685 && !create_got_section (abfd, info))
b34976b6 3686 return FALSE;
5bd4f169
AM		 3687
3688 if (h != NULL)
3689 {
411e1bfb
AM		 3690 struct ppc_link_hash_entry *eh;
3691 struct got_entry *ent;
65f38f15 3692
411e1bfb
AM		 3693 eh = (struct ppc_link_hash_entry *) h;
3694 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
3695 if (ent->addend == rel->r_addend
e717da7e 3696 && ent->owner == abfd
411e1bfb
AM		 3697 && ent->tls_type == tls_type)
3698 break;
3699 if (ent == NULL)
5bd4f169 3700 {
411e1bfb 3701 bfd_size_type amt = sizeof (*ent);
4ce794b7 3702 ent = bfd_alloc (abfd, amt);
411e1bfb 3703 if (ent == NULL)
b34976b6 3704 return FALSE;
411e1bfb
AM		 3705 ent->next = eh->elf.got.glist;
3706 ent->addend = rel->r_addend;
e717da7e 3707 ent->owner = abfd;
411e1bfb
AM		 3708 ent->tls_type = tls_type;
3709 ent->got.refcount = 0;
3710 eh->elf.got.glist = ent;
5bd4f169 3711 }
411e1bfb 3712 ent->got.refcount += 1;
e7b938ca 3713 eh->tls_mask |= tls_type;
5bd4f169 3714 }
411e1bfb
AM		 3715 else
3716 /* This is a global offset table entry for a local symbol. */
3717 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3718 rel->r_addend, tls_type))
3719 return FALSE;
5bd4f169
AM		 3720 break;
3721
5bd4f169 3722 case R_PPC64_PLT16_HA:
65f38f15
AM		 3723 case R_PPC64_PLT16_HI:
3724 case R_PPC64_PLT16_LO:
3725 case R_PPC64_PLT32:
3726 case R_PPC64_PLT64:
5bd4f169 3727 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 3728 actually build the entry in adjust_dynamic_symbol,
3729 because this might be a case of linking PIC code without
3730 linking in any dynamic objects, in which case we don't
3731 need to generate a procedure linkage table after all. */
5bd4f169
AM		 3732 if (h == NULL)
3733 {
3734 /* It does not make sense to have a procedure linkage
3fad3c7c 3735 table entry for a local symbol. */
5bd4f169 3736 bfd_set_error (bfd_error_bad_value);
b34976b6 3737 return FALSE;
5bd4f169 3738 }
411e1bfb
AM		 3739 else
3740 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3741 rel->r_addend))
3742 return FALSE;
5bd4f169
AM		 3743 break;
3744
3745 /* The following relocations don't need to propagate the
3746 relocation if linking a shared object since they are
3747 section relative. */
3748 case R_PPC64_SECTOFF:
3749 case R_PPC64_SECTOFF_LO:
3750 case R_PPC64_SECTOFF_HI:
3751 case R_PPC64_SECTOFF_HA:
3752 case R_PPC64_SECTOFF_DS:
3753 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 3754 case R_PPC64_DTPREL16:
3755 case R_PPC64_DTPREL16_LO:
3756 case R_PPC64_DTPREL16_HI:
3757 case R_PPC64_DTPREL16_HA:
3758 case R_PPC64_DTPREL16_DS:
3759 case R_PPC64_DTPREL16_LO_DS:
3760 case R_PPC64_DTPREL16_HIGHER:
3761 case R_PPC64_DTPREL16_HIGHERA:
3762 case R_PPC64_DTPREL16_HIGHEST:
3763 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 3764 break;
3765
ad8e1ba5
AM		 3766 /* Nor do these. */
3767 case R_PPC64_TOC16:
3768 case R_PPC64_TOC16_LO:
3769 case R_PPC64_TOC16_HI:
3770 case R_PPC64_TOC16_HA:
3771 case R_PPC64_TOC16_DS:
3772 case R_PPC64_TOC16_LO_DS:
3773 sec->has_gp_reloc = 1;
3774 break;
3775
5bd4f169
AM		 3776 /* This relocation describes the C++ object vtable hierarchy.
3777 Reconstruct it for later use during GC. */
3778 case R_PPC64_GNU_VTINHERIT:
3779 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3780 return FALSE;
5bd4f169
AM		 3781 break;
3782
3783 /* This relocation describes which C++ vtable entries are actually
3784 used. Record for later use during GC. */
3785 case R_PPC64_GNU_VTENTRY:
3786 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 3787 return FALSE;
5bd4f169
AM		 3788 break;
3789
721956f4
AM		 3790 case R_PPC64_REL14:
3791 case R_PPC64_REL14_BRTAKEN:
3792 case R_PPC64_REL14_BRNTAKEN:
3793 htab->has_14bit_branch = 1;
3794 /* Fall through. */
3795
5d1634d7 3796 case R_PPC64_REL24:
e86ce104
AM		 3797 if (h != NULL
3798 && h->root.root.string[0] == '.'
3799 && h->root.root.string[1] != 0)
5d1634d7
AM		 3800 {
3801 /* We may need a .plt entry if the function this reloc
3802 refers to is in a shared lib. */
411e1bfb
AM		 3803 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3804 rel->r_addend))
3805 return FALSE;
3806 if (h == htab->tls_get_addr)
3807 sec->has_tls_reloc = 1;
a48ebf4d
AM		 3808 else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15)
3809 == 0)
3810 && (h->root.root.string[15] == 0
3811 || h->root.root.string[15] == '@'))
411e1bfb
AM		 3812 {
3813 htab->tls_get_addr = h;
3814 sec->has_tls_reloc = 1;
3815 }
3816 }
3817 break;
3818
3819 case R_PPC64_TPREL64:
3820 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
3821 if (info->shared)
3822 info->flags |= DF_STATIC_TLS;
3823 goto dotlstoc;
3824
3825 case R_PPC64_DTPMOD64:
3826 if (rel + 1 < rel_end
3827 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
3828 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 3829 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 3830 else
951fd09b 3831 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 3832 goto dotlstoc;
3833
3834 case R_PPC64_DTPREL64:
3835 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
3836 if (rel != relocs
3837 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
3838 && rel[-1].r_offset == rel->r_offset - 8)
3839 /* This is the second reloc of a dtpmod, dtprel pair.
3840 Don't mark with TLS_DTPREL. */
3841 goto dodyn;
3842
3843 dotlstoc:
3844 sec->has_tls_reloc = 1;
3845 if (h != NULL)
3846 {
3847 struct ppc_link_hash_entry *eh;
3848 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 3849 eh->tls_mask |= tls_type;
411e1bfb
AM		 3850 }
3851 else
3852 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3853 rel->r_addend, tls_type))
3854 return FALSE;
3855
3856 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3857 {
e7b938ca 3858 /* One extra to simplify get_tls_mask. */
951fd09b 3859 bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1;
4ce794b7 3860 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
411e1bfb
AM		 3861 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3862 return FALSE;
3863 }
3864 BFD_ASSERT (rel->r_offset % 8 == 0);
3865 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM		 3866
3867 /* Mark the second slot of a GD or LD entry.
3868 -1 to indicate GD and -2 to indicate LD. */
3869 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3870 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
3871 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3872 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 3873 goto dodyn;
3874
3875 case R_PPC64_TPREL16:
3876 case R_PPC64_TPREL16_LO:
3877 case R_PPC64_TPREL16_HI:
3878 case R_PPC64_TPREL16_HA:
3879 case R_PPC64_TPREL16_DS:
3880 case R_PPC64_TPREL16_LO_DS:
3881 case R_PPC64_TPREL16_HIGHER:
3882 case R_PPC64_TPREL16_HIGHERA:
3883 case R_PPC64_TPREL16_HIGHEST:
3884 case R_PPC64_TPREL16_HIGHESTA:
3885 if (info->shared)
3886 {
3887 info->flags |= DF_STATIC_TLS;
3888 goto dodyn;
5d1634d7
AM		 3889 }
3890 break;
3891
e86ce104 3892 case R_PPC64_ADDR64:
1e2f5b6e 3893 if (opd_sym_map != NULL
e86ce104
AM		 3894 && h != NULL
3895 && h->root.root.string[0] == '.'
3896 && h->root.root.string[1] != 0)
50bc7936 3897 get_fdh ((struct ppc_link_hash_entry *) h, htab);
e86ce104 3898
1e2f5b6e
AM		 3899 if (opd_sym_map != NULL
3900 && h == NULL
3901 && rel + 1 < rel_end
4ce794b7 3902 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e
AM		 3903 {
3904 asection *s;
3905
3906 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3907 r_symndx);
3908 if (s == NULL)
b34976b6 3909 return FALSE;
1e2f5b6e
AM		 3910 else if (s != sec)
3911 opd_sym_map[rel->r_offset / 24] = s;
3912 }
e86ce104
AM		 3913 /* Fall through. */
3914
04c9666a 3915 case R_PPC64_REL30:
5bd4f169 3916 case R_PPC64_REL32:
04c9666a 3917 case R_PPC64_REL64:
65f38f15
AM		 3918 case R_PPC64_ADDR14:
3919 case R_PPC64_ADDR14_BRNTAKEN:
3920 case R_PPC64_ADDR14_BRTAKEN:
3921 case R_PPC64_ADDR16:
3922 case R_PPC64_ADDR16_DS:
3923 case R_PPC64_ADDR16_HA:
3924 case R_PPC64_ADDR16_HI:
3925 case R_PPC64_ADDR16_HIGHER:
3926 case R_PPC64_ADDR16_HIGHERA:
3927 case R_PPC64_ADDR16_HIGHEST:
3928 case R_PPC64_ADDR16_HIGHESTA:
3929 case R_PPC64_ADDR16_LO:
3930 case R_PPC64_ADDR16_LO_DS:
3931 case R_PPC64_ADDR24:
65f38f15 3932 case R_PPC64_ADDR32:
65f38f15
AM		 3933 case R_PPC64_UADDR16:
3934 case R_PPC64_UADDR32:
3935 case R_PPC64_UADDR64:
5bd4f169 3936 case R_PPC64_TOC:
81848ca0
AM		 3937 if (h != NULL && !info->shared)
3938 /* We may need a copy reloc. */
3939 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
3940
41bd81ab 3941 /* Don't propagate .opd relocs. */
1e2f5b6e 3942 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 3943 break;
e86ce104 3944
f4656909
AM		 3945 /* Don't propagate relocs that the dynamic linker won't relocate. */
3946 if ((sec->flags & SEC_ALLOC) == 0)
3947 break;
3948
65f38f15
AM		 3949 /* If we are creating a shared library, and this is a reloc
3950 against a global symbol, or a non PC relative reloc
3951 against a local symbol, then we need to copy the reloc
3952 into the shared library. However, if we are linking with
3953 -Bsymbolic, we do not need to copy a reloc against a
3954 global symbol which is defined in an object we are
3955 including in the link (i.e., DEF_REGULAR is set). At
3956 this point we have not seen all the input files, so it is
3957 possible that DEF_REGULAR is not set now but will be set
3958 later (it is never cleared). In case of a weak definition,
3959 DEF_REGULAR may be cleared later by a strong definition in
3960 a shared library. We account for that possibility below by
f4656909 3961 storing information in the dyn_relocs field of the hash
65f38f15
AM		 3962 table entry. A similar situation occurs when creating
3963 shared libraries and symbol visibility changes render the
3964 symbol local.
3965
3966 If on the other hand, we are creating an executable, we
3967 may need to keep relocations for symbols satisfied by a
3968 dynamic library if we manage to avoid copy relocs for the
3969 symbol. */
411e1bfb 3970 dodyn:
65f38f15 3971 if ((info->shared
411e1bfb 3972 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM		 3973 || (h != NULL
3974 && (! info->symbolic
3975 || h->root.type == bfd_link_hash_defweak
3976 || (h->elf_link_hash_flags
3977 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
f4656909
AM		 3978 || (ELIMINATE_COPY_RELOCS
3979 && !info->shared
65f38f15
AM		 3980 && h != NULL
3981 && (h->root.type == bfd_link_hash_defweak
3982 || (h->elf_link_hash_flags
3983 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
5bd4f169 3984 {
ec338859
AM		 3985 struct ppc_dyn_relocs *p;
3986 struct ppc_dyn_relocs **head;
3987
65f38f15
AM		 3988 /* We must copy these reloc types into the output file.
3989 Create a reloc section in dynobj and make room for
3990 this reloc. */
5bd4f169
AM		 3991 if (sreloc == NULL)
3992 {
3993 const char *name;
65f38f15 3994 bfd *dynobj;
5bd4f169
AM		 3995
3996 name = (bfd_elf_string_from_elf_section
3997 (abfd,
3998 elf_elfheader (abfd)->e_shstrndx,
3999 elf_section_data (sec)->rel_hdr.sh_name));
4000 if (name == NULL)
b34976b6 4001 return FALSE;
5bd4f169 4002
65f38f15
AM		 4003 if (strncmp (name, ".rela", 5) != 0
4004 || strcmp (bfd_get_section_name (abfd, sec),
4005 name + 5) != 0)
4006 {
4007 (*_bfd_error_handler)
4008 (_("%s: bad relocation section name `%s\'"),
4009 bfd_archive_filename (abfd), name);
5d1634d7 4010 bfd_set_error (bfd_error_bad_value);
65f38f15
AM		 4011 }
4012
65f38f15 4013 dynobj = htab->elf.dynobj;
5bd4f169
AM		 4014 sreloc = bfd_get_section_by_name (dynobj, name);
4015 if (sreloc == NULL)
4016 {
4017 flagword flags;
4018
4019 sreloc = bfd_make_section (dynobj, name);
4020 flags = (SEC_HAS_CONTENTS | SEC_READONLY
4021 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4022 if ((sec->flags & SEC_ALLOC) != 0)
4023 flags |= SEC_ALLOC | SEC_LOAD;
4024 if (sreloc == NULL
4025 || ! bfd_set_section_flags (dynobj, sreloc, flags)
65f38f15 4026 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 4027 return FALSE;
5bd4f169 4028 }
65f38f15 4029 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM		 4030 }
4031
65f38f15
AM		 4032 /* If this is a global symbol, we count the number of
4033 relocations we need for this symbol. */
4034 if (h != NULL)
4035 {
ec338859 4036 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM		 4037 }
4038 else
4039 {
ec338859
AM		 4040 /* Track dynamic relocs needed for local syms too.
4041 We really need local syms available to do this
4042 easily. Oh well. */
4043
4044 asection *s;
4045 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4046 sec, r_symndx);
4047 if (s == NULL)
b34976b6 4048 return FALSE;
ec338859
AM		 4049
4050 head = ((struct ppc_dyn_relocs **)
4051 &elf_section_data (s)->local_dynrel);
65f38f15 4052 }
ec338859
AM		 4053
4054 p = *head;
4055 if (p == NULL || p->sec != sec)
4056 {
4ce794b7 4057 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4058 if (p == NULL)
b34976b6 4059 return FALSE;
ec338859
AM		 4060 p->next = *head;
4061 *head = p;
4062 p->sec = sec;
4063 p->count = 0;
4064 p->pc_count = 0;
4065 }
4066
4067 p->count += 1;
411e1bfb 4068 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4069 p->pc_count += 1;
65f38f15 4070 }
5bd4f169 4071 break;
65f38f15
AM		 4072
4073 default:
96e0dda4 4074 break;
5bd4f169
AM		 4075 }
4076 }
4077
b34976b6 4078 return TRUE;
5bd4f169
AM		 4079}
4080
4081/* Return the section that should be marked against GC for a given
4082 relocation. */
4083
4084static asection *
4ce794b7
AM		 4085ppc64_elf_gc_mark_hook (asection *sec,
4086 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4087 Elf_Internal_Rela *rel,
4088 struct elf_link_hash_entry *h,
4089 Elf_Internal_Sym *sym)
5bd4f169 4090{
1e2f5b6e
AM		 4091 asection *rsec = NULL;
4092
5bd4f169
AM		 4093 if (h != NULL)
4094 {
04c9666a 4095 enum elf_ppc64_reloc_type r_type;
1e2f5b6e 4096 struct ppc_link_hash_entry *fdh;
a33d1f77 4097
4ce794b7 4098 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4099 switch (r_type)
5bd4f169
AM		 4100 {
4101 case R_PPC64_GNU_VTINHERIT:
4102 case R_PPC64_GNU_VTENTRY:
4103 break;
4104
4105 default:
4106 switch (h->root.type)
4107 {
4108 case bfd_link_hash_defined:
4109 case bfd_link_hash_defweak:
1e2f5b6e
AM		 4110 fdh = (struct ppc_link_hash_entry *) h;
4111
4112 /* Function descriptor syms cause the associated
4113 function code sym section to be marked. */
4114 if (fdh->is_func_descriptor)
4115 rsec = fdh->oh->root.u.def.section;
4116
4117 /* Function entry syms return NULL if they are in .opd
4118 and are not ._start (or others undefined on the ld
4119 command line). Thus we avoid marking all function
b34976b6 4120 sections, as all functions are referenced in .opd. */
1e2f5b6e
AM		 4121 else if ((fdh->oh != NULL
4122 && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry)
f0abc2a1 4123 || ppc64_elf_section_data (sec)->opd.func_sec == NULL)
1e2f5b6e
AM		 4124 rsec = h->root.u.def.section;
4125 break;
5bd4f169
AM		 4126
4127 case bfd_link_hash_common:
1e2f5b6e
AM		 4128 rsec = h->root.u.c.p->section;
4129 break;
5bd4f169
AM		 4130
4131 default:
4132 break;
4133 }
4134 }
4135 }
4136 else
4137 {
1e2f5b6e
AM		 4138 asection **opd_sym_section;
4139
4140 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
f0abc2a1 4141 opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec;
1e2f5b6e
AM		 4142 if (opd_sym_section != NULL)
4143 rsec = opd_sym_section[sym->st_value / 24];
f0abc2a1 4144 else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL)
1e2f5b6e 4145 rsec = NULL;
5bd4f169
AM		 4146 }
4147
1e2f5b6e 4148 return rsec;
5bd4f169
AM		 4149}
4150
65f38f15
AM		 4151/* Update the .got, .plt. and dynamic reloc reference counts for the
4152 section being removed. */
5bd4f169 4153
b34976b6 4154static bfd_boolean
4ce794b7
AM		 4155ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
4156 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4157{
411e1bfb 4158 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4159 Elf_Internal_Shdr *symtab_hdr;
4160 struct elf_link_hash_entry **sym_hashes;
411e1bfb 4161 struct got_entry **local_got_ents;
5bd4f169 4162 const Elf_Internal_Rela *rel, *relend;
5bd4f169 4163
ec338859
AM		 4164 elf_section_data (sec)->local_dynrel = NULL;
4165
411e1bfb 4166 htab = ppc_hash_table (info);
5bd4f169
AM		 4167 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4168 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 4169 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 4170
4171 relend = relocs + sec->reloc_count;
4172 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 4173 {
4174 unsigned long r_symndx;
04c9666a 4175 enum elf_ppc64_reloc_type r_type;
58ac9f71 4176 struct elf_link_hash_entry *h = NULL;
411e1bfb 4177 char tls_type = 0;
5bd4f169 4178
a33d1f77 4179 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 4180 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 4181 if (r_symndx >= symtab_hdr->sh_info)
4182 {
4183 struct ppc_link_hash_entry *eh;
4184 struct ppc_dyn_relocs **pp;
4185 struct ppc_dyn_relocs *p;
4186
4187 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4188 eh = (struct ppc_link_hash_entry *) h;
4189
4190 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4191 if (p->sec == sec)
4192 {
4193 /* Everything must go for SEC. */
4194 *pp = p->next;
4195 break;
4196 }
4197 }
4198
a33d1f77
AM		 4199 switch (r_type)
4200 {
411e1bfb
AM		 4201 case R_PPC64_GOT_TLSLD16:
4202 case R_PPC64_GOT_TLSLD16_LO:
4203 case R_PPC64_GOT_TLSLD16_HI:
4204 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4205 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 4206 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4207 goto dogot;
4208
4209 case R_PPC64_GOT_TLSGD16:
4210 case R_PPC64_GOT_TLSGD16_LO:
4211 case R_PPC64_GOT_TLSGD16_HI:
4212 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4213 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4214 goto dogot;
4215
4216 case R_PPC64_GOT_TPREL16_DS:
4217 case R_PPC64_GOT_TPREL16_LO_DS:
4218 case R_PPC64_GOT_TPREL16_HI:
4219 case R_PPC64_GOT_TPREL16_HA:
4220 tls_type = TLS_TLS | TLS_TPREL;
4221 goto dogot;
4222
4223 case R_PPC64_GOT_DTPREL16_DS:
4224 case R_PPC64_GOT_DTPREL16_LO_DS:
4225 case R_PPC64_GOT_DTPREL16_HI:
4226 case R_PPC64_GOT_DTPREL16_HA:
4227 tls_type = TLS_TLS | TLS_DTPREL;
4228 goto dogot;
4229
a33d1f77
AM		 4230 case R_PPC64_GOT16:
4231 case R_PPC64_GOT16_DS:
4232 case R_PPC64_GOT16_HA:
4233 case R_PPC64_GOT16_HI:
4234 case R_PPC64_GOT16_LO:
4235 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 4236 dogot:
4237 {
4238 struct got_entry *ent;
4239
58ac9f71
AM		 4240 if (h != NULL)
4241 ent = h->got.glist;
411e1bfb
AM		 4242 else
4243 ent = local_got_ents[r_symndx];
4244
4245 for (; ent != NULL; ent = ent->next)
4246 if (ent->addend == rel->r_addend
e717da7e 4247 && ent->owner == abfd
411e1bfb
AM		 4248 && ent->tls_type == tls_type)
4249 break;
4250 if (ent == NULL)
4251 abort ();
4252 if (ent->got.refcount > 0)
4253 ent->got.refcount -= 1;
4254 }
a33d1f77 4255 break;
65f38f15 4256
a33d1f77
AM		 4257 case R_PPC64_PLT16_HA:
4258 case R_PPC64_PLT16_HI:
4259 case R_PPC64_PLT16_LO:
4260 case R_PPC64_PLT32:
4261 case R_PPC64_PLT64:
721956f4
AM		 4262 case R_PPC64_REL14:
4263 case R_PPC64_REL14_BRNTAKEN:
4264 case R_PPC64_REL14_BRTAKEN:
5d1634d7 4265 case R_PPC64_REL24:
58ac9f71 4266 if (h != NULL)
5d1634d7 4267 {
411e1bfb
AM		 4268 struct plt_entry *ent;
4269
411e1bfb
AM		 4270 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4271 if (ent->addend == rel->r_addend)
4272 break;
4273 if (ent == NULL)
4274 abort ();
4275 if (ent->plt.refcount > 0)
4276 ent->plt.refcount -= 1;
5d1634d7 4277 }
e86ce104 4278 break;
5d1634d7 4279
a33d1f77
AM		 4280 default:
4281 break;
4282 }
4283 }
b34976b6 4284 return TRUE;
5bd4f169
AM		 4285}
4286
e86ce104
AM		 4287/* Called via elf_link_hash_traverse to transfer dynamic linking
4288 information on function code symbol entries to their corresponding
4289 function descriptor symbol entries. */
b34976b6 4290static bfd_boolean
4ce794b7 4291func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 4292{
e86ce104 4293 struct bfd_link_info *info;
65f38f15 4294 struct ppc_link_hash_table *htab;
411e1bfb 4295 struct plt_entry *ent;
50bc7936
AM		 4296 struct ppc_link_hash_entry *fh;
4297 struct ppc_link_hash_entry *fdh;
4298 bfd_boolean force_local;
5bd4f169 4299
50bc7936
AM		 4300 fh = (struct ppc_link_hash_entry *) h;
4301 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 4302 return TRUE;
e86ce104 4303
50bc7936
AM		 4304 if (fh->elf.root.type == bfd_link_hash_warning)
4305 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 4306
4ce794b7 4307 info = inf;
65f38f15 4308 htab = ppc_hash_table (info);
5bd4f169 4309
e86ce104
AM		 4310 /* If this is a function code symbol, transfer dynamic linking
4311 information to the function descriptor symbol. */
50bc7936 4312 if (!fh->is_func)
b34976b6 4313 return TRUE;
e86ce104 4314
50bc7936
AM		 4315 if (fh->elf.root.type == bfd_link_hash_undefweak
4316 && (fh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR))
b34976b6 4317 htab->have_undefweak = TRUE;
805fc799 4318
50bc7936 4319 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 4320 if (ent->plt.refcount > 0)
4321 break;
50bc7936
AM		 4322 if (ent == NULL
4323 || fh->elf.root.root.string[0] != '.'
4324 || fh->elf.root.root.string[1] == '\0')
4325 return TRUE;
5bd4f169 4326
50bc7936
AM		 4327 /* Find the corresponding function descriptor symbol. Create it
4328 as undefined if necessary. */
5bd4f169 4329
50bc7936
AM		 4330 fdh = get_fdh (fh, htab);
4331 if (fdh != NULL)
4332 while (fdh->elf.root.type == bfd_link_hash_indirect
4333 || fdh->elf.root.type == bfd_link_hash_warning)
4334 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 4335
50bc7936
AM		 4336 if (fdh == NULL
4337 && info->shared
4338 && (fh->elf.root.type == bfd_link_hash_undefined
4339 || fh->elf.root.type == bfd_link_hash_undefweak))
4340 {
4341 bfd *abfd;
4342 asymbol *newsym;
4343 struct bfd_link_hash_entry *bh;
4344
4345 abfd = fh->elf.root.u.undef.abfd;
4346 newsym = bfd_make_empty_symbol (abfd);
4347 newsym->name = fh->elf.root.root.string + 1;
4348 newsym->section = bfd_und_section_ptr;
4349 newsym->value = 0;
4350 newsym->flags = BSF_OBJECT;
4351 if (fh->elf.root.type == bfd_link_hash_undefweak)
4352 newsym->flags |= BSF_WEAK;
4353
4354 bh = &fdh->elf.root;
4355 if ( !(_bfd_generic_link_add_one_symbol
4356 (info, abfd, newsym->name, newsym->flags,
4357 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
648cca2c 4358 {
50bc7936 4359 return FALSE;
648cca2c 4360 }
50bc7936
AM		 4361 fdh = (struct ppc_link_hash_entry *) bh;
4362 fdh->elf.elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
4363 fdh->elf.size = 24;
4364 fdh->elf.type = STT_OBJECT;
4365 }
648cca2c 4366
50bc7936
AM		 4367 if (fdh != NULL
4368 && (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
4369 && (info->shared
4370 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4371 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
4372 || (fdh->elf.root.type == bfd_link_hash_undefweak
4373 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
4374 {
4375 if (fdh->elf.dynindx == -1)
4376 if (! bfd_elf64_link_record_dynamic_symbol (info, &fdh->elf))
4377 return FALSE;
4378 fdh->elf.elf_link_hash_flags
4379 |= (fh->elf.elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
4380 | ELF_LINK_HASH_REF_DYNAMIC
4381 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4382 | ELF_LINK_NON_GOT_REF));
4383 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 4384 {
50bc7936
AM		 4385 fdh->elf.plt.plist = fh->elf.plt.plist;
4386 fdh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
e86ce104 4387 }
50bc7936
AM		 4388 fdh->is_func_descriptor = 1;
4389 fdh->oh = &fh->elf;
4390 fh->oh = &fdh->elf;
e86ce104
AM		 4391 }
4392
50bc7936
AM		 4393 /* Now that the info is on the function descriptor, clear the
4394 function code sym info. Any function code syms for which we
4395 don't have a definition in a regular file, we force local.
4396 This prevents a shared library from exporting syms that have
4397 been imported from another library. Function code syms that
4398 are really in the library we must leave global to prevent the
4399 linker dragging in a definition from a static library. */
4400 force_local
4401 = (info->shared
4402 && ((fh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4403 || fdh == NULL
4404 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4405 || (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0));
4406 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
4407
b34976b6 4408 return TRUE;
e86ce104 4409}
40b8271b 4410
82bd7b59
AM		 4411#define MIN_SAVE_FPR 14
4412#define MAX_SAVE_FPR 31
4413
e86ce104 4414/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 4415 this hook to a) provide some gcc support functions, and b) transfer
4416 dynamic linking information gathered so far on function code symbol
4417 entries, to their corresponding function descriptor symbol entries. */
b34976b6 4418static bfd_boolean
4ce794b7
AM		 4419ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
4420 struct bfd_link_info *info)
e86ce104
AM		 4421{
4422 struct ppc_link_hash_table *htab;
82bd7b59
AM		 4423 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
4424 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
4425 unsigned int i;
4426 struct elf_link_hash_entry *h;
721956f4 4427 bfd_byte *p;
82bd7b59 4428 char sym[10];
e86ce104
AM		 4429
4430 htab = ppc_hash_table (info);
82bd7b59
AM		 4431
4432 if (htab->sfpr == NULL)
4433 /* We don't have any relocs. */
b34976b6 4434 return TRUE;
82bd7b59
AM		 4435
4436 /* First provide any missing ._savef* and ._restf* functions. */
4437 memcpy (sym, "._savef14", 10);
4438 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4439 {
4440 sym[7] = i / 10 + '0';
4441 sym[8] = i % 10 + '0';
b34976b6 4442 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4443 if (h != NULL
772119ce 4444 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 4445 {
4446 if (lowest_savef > i)
4447 lowest_savef = i;
4448 h->root.type = bfd_link_hash_defined;
4449 h->root.u.def.section = htab->sfpr;
4450 h->root.u.def.value = (i - lowest_savef) * 4;
4451 h->type = STT_FUNC;
4452 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4453 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 4454 }
4455 }
4456
4457 memcpy (sym, "._restf14", 10);
4458 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4459 {
4460 sym[7] = i / 10 + '0';
4461 sym[8] = i % 10 + '0';
b34976b6 4462 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4463 if (h != NULL
772119ce 4464 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 4465 {
4466 if (lowest_restf > i)
4467 lowest_restf = i;
4468 h->root.type = bfd_link_hash_defined;
4469 h->root.u.def.section = htab->sfpr;
4470 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4471 + (i - lowest_restf) * 4);
4472 h->type = STT_FUNC;
4473 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4474 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 4475 }
4476 }
4477
4ce794b7 4478 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 4479
82bd7b59
AM		 4480 htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4481 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
4482
4483 if (htab->sfpr->_raw_size == 0)
805fc799
AM		 4484 {
4485 if (!htab->have_undefweak)
4486 {
4487 _bfd_strip_section_from_output (info, htab->sfpr);
b34976b6 4488 return TRUE;
805fc799
AM		 4489 }
4490
4491 htab->sfpr->_raw_size = 4;
4492 }
82bd7b59 4493
4ce794b7 4494 p = bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size);
721956f4 4495 if (p == NULL)
b34976b6 4496 return FALSE;
721956f4
AM		 4497 htab->sfpr->contents = p;
4498
4499 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
4500 {
4501 unsigned int fpr = i << 21;
4502 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4503 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
4504 p += 4;
4505 }
4506 if (lowest_savef <= MAX_SAVE_FPR)
4507 {
82bd7b59
AM		 4508 bfd_put_32 (htab->elf.dynobj, BLR, p);
4509 p += 4;
721956f4 4510 }
82bd7b59 4511
721956f4
AM		 4512 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
4513 {
4514 unsigned int fpr = i << 21;
4515 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4516 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
82bd7b59
AM		 4517 p += 4;
4518 }
721956f4
AM		 4519 if (lowest_restf <= MAX_SAVE_FPR
4520 || htab->sfpr->_raw_size == 4)
4521 {
4522 bfd_put_32 (htab->elf.dynobj, BLR, p);
4523 }
82bd7b59 4524
b34976b6 4525 return TRUE;
e86ce104
AM		 4526}
4527
4528/* Adjust a symbol defined by a dynamic object and referenced by a
4529 regular object. The current definition is in some section of the
4530 dynamic object, but we're not including those sections. We have to
4531 change the definition to something the rest of the link can
4532 understand. */
4533
b34976b6 4534static bfd_boolean
4ce794b7
AM		 4535ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4536 struct elf_link_hash_entry *h)
e86ce104
AM		 4537{
4538 struct ppc_link_hash_table *htab;
e86ce104
AM		 4539 asection *s;
4540 unsigned int power_of_two;
4541
4542 htab = ppc_hash_table (info);
4543
4544 /* Deal with function syms. */
4545 if (h->type == STT_FUNC
4546 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4547 {
4548 /* Clear procedure linkage table information for any symbol that
4549 won't need a .plt entry. */
411e1bfb
AM		 4550 struct plt_entry *ent;
4551 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4552 if (ent->plt.refcount > 0)
4553 break;
e86ce104 4554 if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor
411e1bfb 4555 || ent == NULL
9c7a29a3
AM		 4556 || SYMBOL_CALLS_LOCAL (info, h)
4557 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4558 && h->root.type == bfd_link_hash_undefweak))
40b8271b 4559 {
411e1bfb 4560 h->plt.plist = NULL;
40b8271b 4561 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
40b8271b 4562 }
5bd4f169 4563 }
bbd7ec4a 4564 else
411e1bfb 4565 h->plt.plist = NULL;
5bd4f169
AM		 4566
4567 /* If this is a weak symbol, and there is a real definition, the
4568 processor independent code will have arranged for us to see the
4569 real definition first, and we can just use the same value. */
4570 if (h->weakdef != NULL)
4571 {
4572 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
4573 || h->weakdef->root.type == bfd_link_hash_defweak);
4574 h->root.u.def.section = h->weakdef->root.u.def.section;
4575 h->root.u.def.value = h->weakdef->root.u.def.value;
a23b6845
AM		 4576 if (ELIMINATE_COPY_RELOCS)
4577 h->elf_link_hash_flags
4578 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
4579 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
b34976b6 4580 return TRUE;
5bd4f169
AM		 4581 }
4582
5bd4f169
AM		 4583 /* If we are creating a shared library, we must presume that the
4584 only references to the symbol are via the global offset table.
4585 For such cases we need not do anything here; the relocations will
4586 be handled correctly by relocate_section. */
4587 if (info->shared)
b34976b6 4588 return TRUE;
5bd4f169 4589
65f38f15
AM		 4590 /* If there are no references to this symbol that do not use the
4591 GOT, we don't need to generate a copy reloc. */
4592 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
b34976b6 4593 return TRUE;
65f38f15 4594
f4656909 4595 if (ELIMINATE_COPY_RELOCS)
65f38f15 4596 {
f4656909
AM		 4597 struct ppc_link_hash_entry * eh;
4598 struct ppc_dyn_relocs *p;
65f38f15 4599
f4656909
AM		 4600 eh = (struct ppc_link_hash_entry *) h;
4601 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4602 {
4603 s = p->sec->output_section;
4604 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4605 break;
4606 }
4607
4608 /* If we didn't find any dynamic relocs in read-only sections, then
4609 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4610 if (p == NULL)
4611 {
4612 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
4613 return TRUE;
4614 }
65f38f15
AM		 4615 }
4616
5d35169e 4617 if (h->plt.plist != NULL)
97b639ba
AM		 4618 {
4619 /* We should never get here, but unfortunately there are versions
4620 of gcc out there that improperly (for this ABI) put initialized
4621 function pointers, vtable refs and suchlike in read-only
4622 sections. Allow them to proceed, but warn that this might
4623 break at runtime. */
4624 (*_bfd_error_handler)
4625 (_("copy reloc against `%s' requires lazy plt linking; "
4626 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
4627 h->root.root.string);
4628 }
5d35169e
AM		 4629
4630 /* This is a reference to a symbol defined by a dynamic object which
4631 is not a function. */
4632
5bd4f169
AM		 4633 /* We must allocate the symbol in our .dynbss section, which will
4634 become part of the .bss section of the executable. There will be
4635 an entry for this symbol in the .dynsym section. The dynamic
4636 object will contain position independent code, so all references
4637 from the dynamic object to this symbol will go through the global
4638 offset table. The dynamic linker will use the .dynsym entry to
4639 determine the address it must put in the global offset table, so
4640 both the dynamic object and the regular object will refer to the
4641 same memory location for the variable. */
5bd4f169 4642
04c9666a
AM		 4643 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4644 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 4645 runtime process image. We need to remember the offset into the
4646 .rela.bss section we are going to use. */
4647 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4648 {
4ce794b7 4649 htab->relbss->_raw_size += sizeof (Elf64_External_Rela);
5bd4f169
AM		 4650 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
4651 }
4652
4653 /* We need to figure out the alignment required for this symbol. I
4654 have no idea how ELF linkers handle this. */
4655 power_of_two = bfd_log2 (h->size);
4656 if (power_of_two > 4)
4657 power_of_two = 4;
4658
4659 /* Apply the required alignment. */
4ce794b7 4660 s = htab->dynbss;
65f38f15
AM		 4661 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
4662 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 4663 {
65f38f15 4664 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 4665 return FALSE;
5bd4f169
AM		 4666 }
4667
4668 /* Define the symbol as being at this point in the section. */
4669 h->root.u.def.section = s;
4670 h->root.u.def.value = s->_raw_size;
4671
4672 /* Increment the section size to make room for the symbol. */
4673 s->_raw_size += h->size;
4674
b34976b6 4675 return TRUE;
5bd4f169
AM		 4676}
4677
e86ce104
AM		 4678/* If given a function descriptor symbol, hide both the function code
4679 sym and the descriptor. */
4680static void
4ce794b7
AM		 4681ppc64_elf_hide_symbol (struct bfd_link_info *info,
4682 struct elf_link_hash_entry *h,
4683 bfd_boolean force_local)
e86ce104
AM		 4684{
4685 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4686
4687 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
4688 {
721956f4 4689 struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh;
e86ce104 4690
721956f4 4691 if (fh == NULL)
d1329ca3
AM		 4692 {
4693 const char *p, *q;
4694 struct ppc_link_hash_table *htab;
4695 char save;
4696
4697 /* We aren't supposed to use alloca in BFD because on
4698 systems which do not have alloca the version in libiberty
4699 calls xmalloc, which might cause the program to crash
4700 when it runs out of memory. This function doesn't have a
4701 return status, so there's no way to gracefully return an
4702 error. So cheat. We know that string[-1] can be safely
4703 dereferenced; It's either a string in an ELF string
4704 table, or allocated in an objalloc structure. */
4705
4706 p = h->root.root.string - 1;
4707 save = *p;
4708 *(char *) p = '.';
4709 htab = ppc_hash_table (info);
b34976b6 4710 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 4711 *(char *) p = save;
4712
4713 /* Unfortunately, if it so happens that the string we were
4714 looking for was allocated immediately before this string,
4715 then we overwrote the string terminator. That's the only
4716 reason the lookup should fail. */
4717 if (fh == NULL)
4718 {
4719 q = h->root.root.string + strlen (h->root.root.string);
4720 while (q >= h->root.root.string && *q == *p)
4721 --q, --p;
4722 if (q < h->root.root.string && *p == '.')
b34976b6 4723 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 4724 }
4725 if (fh != NULL)
4726 {
4727 ((struct ppc_link_hash_entry *) h)->oh = fh;
4728 ((struct ppc_link_hash_entry *) fh)->oh = h;
4729 }
4730 }
e86ce104
AM		 4731 if (fh != NULL)
4732 _bfd_elf_link_hash_hide_symbol (info, fh, force_local);
4733 }
4734}
4735
411e1bfb 4736static bfd_boolean
4ce794b7
AM		 4737get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp,
4738 asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp,
4739 unsigned long r_symndx, bfd *ibfd)
411e1bfb
AM		 4740{
4741 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4742
4743 if (r_symndx >= symtab_hdr->sh_info)
4744 {
4745 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4746 struct elf_link_hash_entry *h;
4747
4748 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4749 while (h->root.type == bfd_link_hash_indirect
4750 || h->root.type == bfd_link_hash_warning)
4751 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4752
4753 if (hp != NULL)
4754 *hp = h;
4755
4756 if (symp != NULL)
4757 *symp = NULL;
4758
4759 if (symsecp != NULL)
4760 {
4761 asection *symsec = NULL;
4762 if (h->root.type == bfd_link_hash_defined
4763 || h->root.type == bfd_link_hash_defweak)
4764 symsec = h->root.u.def.section;
4765 *symsecp = symsec;
4766 }
4767
e7b938ca 4768 if (tls_maskp != NULL)
411e1bfb
AM		 4769 {
4770 struct ppc_link_hash_entry *eh;
4771
4772 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4773 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 4774 }
4775 }
4776 else
4777 {
4778 Elf_Internal_Sym *sym;
4779 Elf_Internal_Sym *locsyms = *locsymsp;
4780
4781 if (locsyms == NULL)
4782 {
4783 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4784 if (locsyms == NULL)
4785 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4786 symtab_hdr->sh_info,
4787 0, NULL, NULL, NULL);
4788 if (locsyms == NULL)
4789 return FALSE;
4790 *locsymsp = locsyms;
4791 }
4792 sym = locsyms + r_symndx;
4793
4794 if (hp != NULL)
4795 *hp = NULL;
4796
4797 if (symp != NULL)
4798 *symp = sym;
4799
4800 if (symsecp != NULL)
4801 {
4802 asection *symsec = NULL;
4803 if ((sym->st_shndx != SHN_UNDEF
4804 && sym->st_shndx < SHN_LORESERVE)
4805 || sym->st_shndx > SHN_HIRESERVE)
4806 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
4807 *symsecp = symsec;
4808 }
4809
e7b938ca 4810 if (tls_maskp != NULL)
411e1bfb
AM		 4811 {
4812 struct got_entry **lgot_ents;
e7b938ca 4813 char *tls_mask;
411e1bfb 4814
e7b938ca 4815 tls_mask = NULL;
411e1bfb
AM		 4816 lgot_ents = elf_local_got_ents (ibfd);
4817 if (lgot_ents != NULL)
4818 {
e7b938ca
AM		 4819 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
4820 tls_mask = &lgot_masks[r_symndx];
411e1bfb 4821 }
e7b938ca 4822 *tls_maskp = tls_mask;
411e1bfb
AM		 4823 }
4824 }
4825 return TRUE;
4826}
4827
e7b938ca 4828/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 4829 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 4830 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 4831
4832static int
0d4792f7
AM		 4833get_tls_mask (char **tls_maskp, unsigned long *toc_symndx,
4834 Elf_Internal_Sym **locsymsp,
4ce794b7 4835 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 4836{
4837 unsigned long r_symndx;
0d4792f7 4838 int next_r;
411e1bfb
AM		 4839 struct elf_link_hash_entry *h;
4840 Elf_Internal_Sym *sym;
4841 asection *sec;
4842 bfd_vma off;
4843
4844 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 4845 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 4846 return 0;
411e1bfb 4847
e7b938ca 4848 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM		 4849 || sec == NULL
4850 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 4851 return 1;
411e1bfb
AM		 4852
4853 /* Look inside a TOC section too. */
4854 if (h != NULL)
4855 {
4856 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4857 off = h->root.u.def.value;
4858 }
4859 else
4860 off = sym->st_value;
4861 off += rel->r_addend;
4862 BFD_ASSERT (off % 8 == 0);
4863 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 4864 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 4865 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 4866 return 0;
0d4792f7
AM		 4867 if (toc_symndx != NULL)
4868 *toc_symndx = r_symndx;
4869 if ((h == NULL
4870 || ((h->root.type == bfd_link_hash_defined
4871 || h->root.type == bfd_link_hash_defweak)
4872 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
4873 && (next_r == -1 || next_r == -2))
4874 return 1 - next_r;
951fd09b 4875 return 1;
411e1bfb
AM		 4876}
4877
b34976b6 4878bfd_boolean
4ce794b7 4879ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info)
1e2f5b6e
AM		 4880{
4881 bfd *ibfd;
1e2f5b6e 4882
411e1bfb 4883 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 4884 {
4885 asection *sec;
4886 Elf_Internal_Rela *relstart, *rel, *relend;
4887 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 4888 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 4889 struct elf_link_hash_entry **sym_hashes;
4890 bfd_vma offset;
d6fe2dc1 4891 bfd_size_type amt;
1e2f5b6e 4892 long *adjust;
b34976b6 4893 bfd_boolean need_edit;
1e2f5b6e
AM		 4894
4895 sec = bfd_get_section_by_name (ibfd, ".opd");
4896 if (sec == NULL)
4897 continue;
4898
d6fe2dc1 4899 amt = sec->_raw_size * sizeof (long) / 24;
f0abc2a1 4900 adjust = ppc64_elf_section_data (sec)->opd.adjust;
d6fe2dc1
AM		 4901 if (adjust == NULL)
4902 {
4903 /* Must be a ld -r link. ie. check_relocs hasn't been
4904 called. */
4ce794b7 4905 adjust = bfd_zalloc (obfd, amt);
f0abc2a1 4906 ppc64_elf_section_data (sec)->opd.adjust = adjust;
d6fe2dc1 4907 }
4ce794b7 4908 memset (adjust, 0, amt);
1e2f5b6e
AM		 4909
4910 if (sec->output_section == bfd_abs_section_ptr)
4911 continue;
4912
4913 /* Look through the section relocs. */
4914 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
4915 continue;
4916
6cdc0ccc 4917 local_syms = NULL;
1e2f5b6e
AM		 4918 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4919 sym_hashes = elf_sym_hashes (ibfd);
4920
4921 /* Read the relocations. */
4ce794b7 4922 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 4923 info->keep_memory);
1e2f5b6e 4924 if (relstart == NULL)
b34976b6 4925 return FALSE;
1e2f5b6e
AM		 4926
4927 /* First run through the relocs to check they are sane, and to
4928 determine whether we need to edit this opd section. */
b34976b6 4929 need_edit = FALSE;
1e2f5b6e
AM		 4930 offset = 0;
4931 relend = relstart + sec->reloc_count;
50bc7936 4932 for (rel = relstart; rel < relend; )
1e2f5b6e 4933 {
04c9666a 4934 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 4935 unsigned long r_symndx;
4936 asection *sym_sec;
4937 struct elf_link_hash_entry *h;
4938 Elf_Internal_Sym *sym;
4939
4940 /* .opd contains a regular array of 24 byte entries. We're
4941 only interested in the reloc pointing to a function entry
4942 point. */
50bc7936
AM		 4943 if (rel->r_offset != offset
4944 || rel + 1 >= relend
4945 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM		 4946 {
4947 /* If someone messes with .opd alignment then after a
4948 "ld -r" we might have padding in the middle of .opd.
4949 Also, there's nothing to prevent someone putting
4950 something silly in .opd with the assembler. No .opd
b34976b6 4951 optimization for them! */
1e2f5b6e
AM		 4952 (*_bfd_error_handler)
4953 (_("%s: .opd is not a regular array of opd entries"),
4954 bfd_archive_filename (ibfd));
b34976b6 4955 need_edit = FALSE;
1e2f5b6e
AM		 4956 break;
4957 }
4958
50bc7936
AM		 4959 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
4960 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
4961 {
4962 (*_bfd_error_handler)
4963 (_("%s: unexpected reloc type %u in .opd section"),
4964 bfd_archive_filename (ibfd), r_type);
4965 need_edit = FALSE;
4966 break;
4967 }
4968
1e2f5b6e 4969 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 4970 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
4971 r_symndx, ibfd))
50bc7936 4972 goto error_ret;
1e2f5b6e
AM		 4973
4974 if (sym_sec == NULL || sym_sec->owner == NULL)
4975 {
411e1bfb
AM		 4976 const char *sym_name;
4977 if (h != NULL)
4978 sym_name = h->root.root.string;
4979 else
4980 sym_name = bfd_elf_local_sym_name (ibfd, sym);
4981
1e2f5b6e
AM		 4982 (*_bfd_error_handler)
4983 (_("%s: undefined sym `%s' in .opd section"),
4984 bfd_archive_filename (ibfd),
411e1bfb 4985 sym_name);
b34976b6 4986 need_edit = FALSE;
1e2f5b6e
AM		 4987 break;
4988 }
4989
51020317
AM		 4990 /* opd entries are always for functions defined in the
4991 current input bfd. If the symbol isn't defined in the
4992 input bfd, then we won't be using the function in this
4993 bfd; It must be defined in a linkonce section in another
4994 bfd, or is weak. It's also possible that we are
4995 discarding the function due to a linker script /DISCARD/,
4996 which we test for via the output_section. */
4997 if (sym_sec->owner != ibfd
4998 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 4999 need_edit = TRUE;
1e2f5b6e
AM		 5000
5001 offset += 24;
50bc7936
AM		 5002 rel += 2;
5003 /* Allow for the possibility of a reloc on the third word. */
5004 if (rel < relend
5005 && rel->r_offset == offset - 8)
5006 rel += 1;
1e2f5b6e
AM		 5007 }
5008
5009 if (need_edit)
5010 {
5011 Elf_Internal_Rela *write_rel;
5012 bfd_byte *rptr, *wptr;
b34976b6 5013 bfd_boolean skip;
1e2f5b6e
AM		 5014
5015 /* This seems a waste of time as input .opd sections are all
5016 zeros as generated by gcc, but I suppose there's no reason
5017 this will always be so. We might start putting something in
5018 the third word of .opd entries. */
5019 if ((sec->flags & SEC_IN_MEMORY) == 0)
5020 {
5021 bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size);
6cdc0ccc 5022 if (loc == NULL
4ce794b7 5023 || !bfd_get_section_contents (ibfd, sec, loc, 0,
6cdc0ccc
AM		 5024 sec->_raw_size))
5025 {
50bc7936 5026 error_ret:
6cdc0ccc
AM		 5027 if (local_syms != NULL
5028 && symtab_hdr->contents != (unsigned char *) local_syms)
5029 free (local_syms);
6cdc0ccc
AM		 5030 if (elf_section_data (sec)->relocs != relstart)
5031 free (relstart);
b34976b6 5032 return FALSE;
6cdc0ccc 5033 }
1e2f5b6e
AM		 5034 sec->contents = loc;
5035 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
5036 }
5037
5038 elf_section_data (sec)->relocs = relstart;
5039
5040 wptr = sec->contents;
5041 rptr = sec->contents;
5042 write_rel = relstart;
b34976b6 5043 skip = FALSE;
1e2f5b6e
AM		 5044 offset = 0;
5045 for (rel = relstart; rel < relend; rel++)
5046 {
50bc7936
AM		 5047 unsigned long r_symndx;
5048 asection *sym_sec;
5049 struct elf_link_hash_entry *h;
5050 Elf_Internal_Sym *sym;
5051
5052 r_symndx = ELF64_R_SYM (rel->r_info);
5053 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 5054 r_symndx, ibfd))
50bc7936
AM		 5055 goto error_ret;
5056
1e2f5b6e
AM		 5057 if (rel->r_offset == offset)
5058 {
50bc7936
AM		 5059 struct ppc_link_hash_entry *fdh = NULL;
5060 if (h != NULL)
5061 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
5062 ppc_hash_table (info));
1e2f5b6e 5063
51020317
AM		 5064 skip = (sym_sec->owner != ibfd
5065 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 5066 if (skip)
5067 {
0be617ce 5068 if (h != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 5069 {
5070 /* Arrange for the function descriptor sym
5071 to be dropped. */
d6fe2dc1
AM		 5072 fdh->elf.root.u.def.value = 0;
5073 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7
AM		 5074 }
5075 }
5076 else
1e2f5b6e
AM		 5077 {
5078 /* We'll be keeping this opd entry. */
5079
5080 if (h != NULL)
5081 {
5082 /* Redefine the function descriptor symbol
5083 to this location in the opd section.
5084 We've checked above that opd relocs are
5085 ordered. */
d6fe2dc1 5086 fdh->elf.root.u.def.value = wptr - sec->contents;
1e2f5b6e
AM		 5087 }
5088 else
5089 {
6cdc0ccc
AM		 5090 /* Local syms are a bit tricky. We could
5091 tweak them as they can be cached, but
5092 we'd need to look through the local syms
5093 for the function descriptor sym which we
5094 don't have at the moment. So keep an
b34976b6 5095 array of adjustments. */
7f6a7663 5096 adjust[rel->r_offset / 24] = wptr - rptr;
1e2f5b6e
AM		 5097 }
5098
5099 if (wptr != rptr)
5100 memcpy (wptr, rptr, 24);
5101 wptr += 24;
5102 }
5103 rptr += 24;
5104 offset += 24;
5105 }
5106
50bc7936
AM		 5107 if (skip)
5108 {
5109 BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info)));
5110 if (info->shared)
5111 {
5112 /* We won't be needing dynamic relocs here. */
5113 struct ppc_dyn_relocs **pp;
5114 struct ppc_dyn_relocs *p;
5115
5116 if (h != NULL)
5117 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
5118 else if (sym_sec != NULL)
5119 pp = ((struct ppc_dyn_relocs **)
5120 &elf_section_data (sym_sec)->local_dynrel);
5121 else
5122 pp = ((struct ppc_dyn_relocs **)
5123 &elf_section_data (sec)->local_dynrel);
5124 while ((p = *pp) != NULL)
5125 {
5126 if (p->sec == sec)
5127 {
5128 p->count -= 1;
5129 if (p->count == 0)
d37c89e5 5130 *pp = p->next;
50bc7936
AM		 5131 break;
5132 }
5133 pp = &p->next;
5134 }
5135 }
5136 }
5137 else
1e2f5b6e 5138 {
50bc7936
AM		 5139 /* We need to adjust any reloc offsets to point to the
5140 new opd entries. While we're at it, we may as well
5141 remove redundant relocs. */
1e2f5b6e
AM		 5142 rel->r_offset += wptr - rptr;
5143 if (write_rel != rel)
5144 memcpy (write_rel, rel, sizeof (*rel));
5145 ++write_rel;
5146 }
5147 }
5148
5149 sec->_cooked_size = wptr - sec->contents;
5150 sec->reloc_count = write_rel - relstart;
cdcf6e38
AM		 5151 /* Fudge the size too, as this is used later in
5152 elf_bfd_final_link if we are emitting relocs. */
5153 elf_section_data (sec)->rel_hdr.sh_size
5154 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
5155 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
1e2f5b6e 5156 }
6cdc0ccc 5157 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 5158 free (relstart);
6cdc0ccc 5159
411e1bfb
AM		 5160 if (local_syms != NULL
5161 && symtab_hdr->contents != (unsigned char *) local_syms)
5162 {
5163 if (!info->keep_memory)
5164 free (local_syms);
5165 else
5166 symtab_hdr->contents = (unsigned char *) local_syms;
5167 }
5168 }
5169
5170 return TRUE;
5171}
5172
e1918d23 5173/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 5174
e1918d23 5175asection *
4ce794b7 5176ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb 5177{
411e1bfb
AM		 5178 struct ppc_link_hash_table *htab;
5179
411e1bfb 5180 htab = ppc_hash_table (info);
a48ebf4d
AM		 5181 if (htab->tls_get_addr != NULL)
5182 {
5183 struct elf_link_hash_entry *h = htab->tls_get_addr;
5184
5185 while (h->root.type == bfd_link_hash_indirect
5186 || h->root.type == bfd_link_hash_warning)
5187 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5188
5189 htab->tls_get_addr = h;
5190 }
5191
e1918d23 5192 return _bfd_elf_tls_setup (obfd, info);
951fd09b 5193}
411e1bfb 5194
951fd09b
AM		 5195/* Run through all the TLS relocs looking for optimization
5196 opportunities. The linker has been hacked (see ppc64elf.em) to do
5197 a preliminary section layout so that we know the TLS segment
5198 offsets. We can't optimize earlier because some optimizations need
5199 to know the tp offset, and we need to optimize before allocating
5200 dynamic relocations. */
5201
5202bfd_boolean
4ce794b7 5203ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 5204{
5205 bfd *ibfd;
5206 asection *sec;
5207 struct ppc_link_hash_table *htab;
5208
1049f94e 5209 if (info->relocatable || info->shared)
411e1bfb
AM		 5210 return TRUE;
5211
951fd09b 5212 htab = ppc_hash_table (info);
411e1bfb
AM		 5213 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5214 {
5215 Elf_Internal_Sym *locsyms = NULL;
5216
5217 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5218 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5219 {
5220 Elf_Internal_Rela *relstart, *rel, *relend;
5221 int expecting_tls_get_addr;
5222
5223 /* Read the relocations. */
4ce794b7 5224 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 5225 info->keep_memory);
411e1bfb
AM		 5226 if (relstart == NULL)
5227 return FALSE;
5228
5229 expecting_tls_get_addr = 0;
5230 relend = relstart + sec->reloc_count;
5231 for (rel = relstart; rel < relend; rel++)
5232 {
5233 enum elf_ppc64_reloc_type r_type;
5234 unsigned long r_symndx;
5235 struct elf_link_hash_entry *h;
5236 Elf_Internal_Sym *sym;
5237 asection *sym_sec;
e7b938ca
AM		 5238 char *tls_mask;
5239 char tls_set, tls_clear, tls_type = 0;
411e1bfb 5240 bfd_vma value;
951fd09b 5241 bfd_boolean ok_tprel, is_local;
411e1bfb
AM		 5242
5243 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5244 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM		 5245 r_symndx, ibfd))
5246 {
5247 err_free_rel:
5248 if (elf_section_data (sec)->relocs != relstart)
5249 free (relstart);
5250 if (locsyms != NULL
5251 && (elf_tdata (ibfd)->symtab_hdr.contents
5252 != (unsigned char *) locsyms))
5253 free (locsyms);
5254 return FALSE;
5255 }
5256
5257 if (h != NULL)
5258 {
5259 if (h->root.type != bfd_link_hash_defined
5260 && h->root.type != bfd_link_hash_defweak)
5261 continue;
5262 value = h->root.u.def.value;
5263 }
5264 else
5265 value = sym->st_value;
951fd09b 5266
411e1bfb 5267 ok_tprel = FALSE;
951fd09b
AM		 5268 is_local = FALSE;
5269 if (h == NULL
5270 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5271 {
951fd09b 5272 is_local = TRUE;
411e1bfb
AM		 5273 value += sym_sec->output_offset;
5274 value += sym_sec->output_section->vma;
e1918d23 5275 value -= htab->elf.tls_sec->vma;
411e1bfb
AM		 5276 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
5277 < (bfd_vma) 1 << 32);
5278 }
5279
4ce794b7 5280 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM		 5281 switch (r_type)
5282 {
5283 case R_PPC64_GOT_TLSLD16:
5284 case R_PPC64_GOT_TLSLD16_LO:
5285 case R_PPC64_GOT_TLSLD16_HI:
5286 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM		 5287 /* These relocs should never be against a symbol
5288 defined in a shared lib. Leave them alone if
5289 that turns out to be the case. */
e717da7e 5290 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM		 5291 if (!is_local)
5292 continue;
5293
951fd09b
AM		 5294 /* LD -> LE */
5295 tls_set = 0;
5296 tls_clear = TLS_LD;
e7b938ca 5297 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5298 expecting_tls_get_addr = 1;
5299 break;
5300
5301 case R_PPC64_GOT_TLSGD16:
5302 case R_PPC64_GOT_TLSGD16_LO:
5303 case R_PPC64_GOT_TLSGD16_HI:
5304 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5305 if (ok_tprel)
411e1bfb
AM		 5306 /* GD -> LE */
5307 tls_set = 0;
5308 else
5309 /* GD -> IE */
951fd09b
AM		 5310 tls_set = TLS_TLS | TLS_TPRELGD;
5311 tls_clear = TLS_GD;
e7b938ca 5312 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5313 expecting_tls_get_addr = 1;
5314 break;
5315
5316 case R_PPC64_GOT_TPREL16_DS:
5317 case R_PPC64_GOT_TPREL16_LO_DS:
5318 case R_PPC64_GOT_TPREL16_HI:
5319 case R_PPC64_GOT_TPREL16_HA:
5320 expecting_tls_get_addr = 0;
5321 if (ok_tprel)
5322 {
5323 /* IE -> LE */
5324 tls_set = 0;
5325 tls_clear = TLS_TPREL;
e7b938ca 5326 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM		 5327 break;
5328 }
5329 else
5330 continue;
5331
5332 case R_PPC64_REL14:
5333 case R_PPC64_REL14_BRTAKEN:
5334 case R_PPC64_REL14_BRNTAKEN:
5335 case R_PPC64_REL24:
5336 if (h != NULL
5337 && h == htab->tls_get_addr)
5338 {
5339 if (!expecting_tls_get_addr
5340 && rel != relstart
5341 && ((ELF64_R_TYPE (rel[-1].r_info)
5342 == R_PPC64_TOC16)
5343 || (ELF64_R_TYPE (rel[-1].r_info)
5344 == R_PPC64_TOC16_LO)))
5345 {
5346 /* Check for toc tls entries. */
5347 char *toc_tls;
951fd09b 5348 int retval;
411e1bfb 5349
0d4792f7 5350 retval = get_tls_mask (&toc_tls, NULL, &locsyms,
951fd09b
AM		 5351 rel - 1, ibfd);
5352 if (retval == 0)
411e1bfb
AM		 5353 goto err_free_rel;
5354 if (toc_tls != NULL)
951fd09b 5355 expecting_tls_get_addr = retval > 1;
411e1bfb
AM		 5356 }
5357
5358 if (expecting_tls_get_addr)
5359 {
5360 struct plt_entry *ent;
5361 for (ent = h->plt.plist; ent; ent = ent->next)
5362 if (ent->addend == 0)
5363 {
5364 if (ent->plt.refcount > 0)
5365 ent->plt.refcount -= 1;
5366 break;
5367 }
5368 }
5369 }
5370 expecting_tls_get_addr = 0;
5371 continue;
5372
5373 case R_PPC64_TPREL64:
5374 expecting_tls_get_addr = 0;
5375 if (ok_tprel)
5376 {
5377 /* IE -> LE */
5378 tls_set = TLS_EXPLICIT;
5379 tls_clear = TLS_TPREL;
5380 break;
5381 }
5382 else
5383 continue;
5384
5385 case R_PPC64_DTPMOD64:
5386 expecting_tls_get_addr = 0;
951fd09b
AM		 5387 if (rel + 1 < relend
5388 && (rel[1].r_info
5389 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
5390 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 5391 {
951fd09b 5392 if (ok_tprel)
411e1bfb 5393 /* GD -> LE */
951fd09b 5394 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM		 5395 else
5396 /* GD -> IE */
951fd09b
AM		 5397 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
5398 tls_clear = TLS_GD;
411e1bfb
AM		 5399 }
5400 else
5401 {
951fd09b
AM		 5402 if (!is_local)
5403 continue;
5404
5405 /* LD -> LE */
5406 tls_set = TLS_EXPLICIT;
5407 tls_clear = TLS_LD;
411e1bfb
AM		 5408 }
5409 break;
5410
5411 default:
5412 expecting_tls_get_addr = 0;
5413 continue;
5414 }
5415
5416 if ((tls_set & TLS_EXPLICIT) == 0)
5417 {
5418 struct got_entry *ent;
5419
5420 /* Adjust got entry for this reloc. */
5421 if (h != NULL)
5422 ent = h->got.glist;
5423 else
5424 ent = elf_local_got_ents (ibfd)[r_symndx];
5425
5426 for (; ent != NULL; ent = ent->next)
5427 if (ent->addend == rel->r_addend
e717da7e 5428 && ent->owner == ibfd
e7b938ca 5429 && ent->tls_type == tls_type)
411e1bfb
AM		 5430 break;
5431 if (ent == NULL)
5432 abort ();
5433
5434 if (tls_set == 0)
5435 {
5436 /* We managed to get rid of a got entry. */
5437 if (ent->got.refcount > 0)
5438 ent->got.refcount -= 1;
5439 }
411e1bfb
AM		 5440 }
5441 else if (h != NULL)
5442 {
5443 struct ppc_link_hash_entry * eh;
5444 struct ppc_dyn_relocs **pp;
5445 struct ppc_dyn_relocs *p;
5446
5447 /* Adjust dynamic relocs. */
5448 eh = (struct ppc_link_hash_entry *) h;
5449 for (pp = &eh->dyn_relocs;
5450 (p = *pp) != NULL;
5451 pp = &p->next)
5452 if (p->sec == sec)
5453 {
5454 /* If we got rid of a DTPMOD/DTPREL reloc
5455 pair then we'll lose one or two dyn
5456 relocs. */
951fd09b 5457 if (tls_set == (TLS_EXPLICIT | TLS_GD))
411e1bfb 5458 p->count -= 1;
951fd09b 5459 p->count -= 1;
411e1bfb
AM		 5460 if (p->count == 0)
5461 *pp = p->next;
5462 break;
5463 }
5464 }
5465
e7b938ca
AM		 5466 *tls_mask |= tls_set;
5467 *tls_mask &= ~tls_clear;
411e1bfb
AM		 5468 }
5469
5470 if (elf_section_data (sec)->relocs != relstart)
5471 free (relstart);
5472 }
5473
5474 if (locsyms != NULL
5475 && (elf_tdata (ibfd)->symtab_hdr.contents
5476 != (unsigned char *) locsyms))
6cdc0ccc
AM		 5477 {
5478 if (!info->keep_memory)
411e1bfb 5479 free (locsyms);
6cdc0ccc 5480 else
411e1bfb 5481 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 5482 }
1e2f5b6e 5483 }
b34976b6 5484 return TRUE;
1e2f5b6e 5485}
b34976b6 5486
65f38f15
AM		 5487/* This is the condition under which ppc64_elf_finish_dynamic_symbol
5488 will be called from elflink.h. If elflink.h doesn't call our
5489 finish_dynamic_symbol routine, we'll need to do something about
5490 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
f4656909 5491#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
65f38f15 5492 ((DYN) \
f4656909 5493 && ((SHARED) \
65f38f15
AM		 5494 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5495 && ((H)->dynindx != -1 \
5496 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5bd4f169 5497
65f38f15
AM		 5498/* Allocate space in .plt, .got and associated reloc sections for
5499 dynamic relocs. */
5bd4f169 5500
b34976b6 5501static bfd_boolean
4ce794b7 5502allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5503{
65f38f15
AM		 5504 struct bfd_link_info *info;
5505 struct ppc_link_hash_table *htab;
5bd4f169 5506 asection *s;
65f38f15
AM		 5507 struct ppc_link_hash_entry *eh;
5508 struct ppc_dyn_relocs *p;
411e1bfb 5509 struct got_entry *gent;
5bd4f169 5510
e92d460e 5511 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5512 return TRUE;
5bd4f169 5513
e92d460e
AM		 5514 if (h->root.type == bfd_link_hash_warning)
5515 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5516
65f38f15
AM		 5517 info = (struct bfd_link_info *) inf;
5518 htab = ppc_hash_table (info);
5bd4f169 5519
65f38f15 5520 if (htab->elf.dynamic_sections_created
411e1bfb 5521 && h->dynindx != -1
9c7a29a3 5522 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 5523 {
411e1bfb
AM		 5524 struct plt_entry *pent;
5525 bfd_boolean doneone = FALSE;
5526 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
5527 if (pent->plt.refcount > 0)
5528 {
5529 BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor);
5530
5531 /* If this is the first .plt entry, make room for the special
5532 first entry. */
4ce794b7 5533 s = htab->plt;
411e1bfb
AM		 5534 if (s->_raw_size == 0)
5535 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
5536
5537 pent->plt.offset = s->_raw_size;
5538
5539 /* Make room for this entry. */
5540 s->_raw_size += PLT_ENTRY_SIZE;
5541
5542 /* Make room for the .glink code. */
4ce794b7 5543 s = htab->glink;
411e1bfb
AM		 5544 if (s->_raw_size == 0)
5545 s->_raw_size += GLINK_CALL_STUB_SIZE;
5546 /* We need bigger stubs past index 32767. */
5547 if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
5548 s->_raw_size += 4;
5549 s->_raw_size += 2*4;
5550
5551 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 5552 s = htab->relplt;
411e1bfb
AM		 5553 s->_raw_size += sizeof (Elf64_External_Rela);
5554 doneone = TRUE;
5555 }
5556 else
5557 pent->plt.offset = (bfd_vma) -1;
5558 if (!doneone)
65f38f15 5559 {
411e1bfb 5560 h->plt.plist = NULL;
65f38f15
AM		 5561 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5562 }
5563 }
5564 else
5565 {
411e1bfb 5566 h->plt.plist = NULL;
65f38f15
AM		 5567 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5568 }
5569
951fd09b
AM		 5570 eh = (struct ppc_link_hash_entry *) h;
5571 /* Run through the TLS GD got entries first if we're changing them
5572 to TPREL. */
e7b938ca 5573 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 5574 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5575 if (gent->got.refcount > 0
5576 && (gent->tls_type & TLS_GD) != 0)
5577 {
5578 /* This was a GD entry that has been converted to TPREL. If
5579 there happens to be a TPREL entry we can use that one. */
5580 struct got_entry *ent;
5581 for (ent = h->got.glist; ent != NULL; ent = ent->next)
5582 if (ent->got.refcount > 0
5583 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 5584 && ent->addend == gent->addend
5585 && ent->owner == gent->owner)
951fd09b
AM		 5586 {
5587 gent->got.refcount = 0;
5588 break;
5589 }
5590
5591 /* If not, then we'll be using our own TPREL entry. */
5592 if (gent->got.refcount != 0)
5593 gent->tls_type = TLS_TLS | TLS_TPREL;
5594 }
5595
411e1bfb
AM		 5596 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5597 if (gent->got.refcount > 0)
5598 {
951fd09b
AM		 5599 bfd_boolean dyn;
5600
411e1bfb 5601 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 5602 Undefined weak syms won't yet be marked as dynamic,
5603 nor will all TLS symbols. */
411e1bfb
AM		 5604 if (h->dynindx == -1
5605 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5606 {
5607 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5608 return FALSE;
5609 }
65f38f15 5610
d881513a
AM		 5611 if ((gent->tls_type & TLS_LD) != 0
5612 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5613 {
e717da7e 5614 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 5615 continue;
411e1bfb 5616 }
951fd09b 5617
e717da7e 5618 s = ppc64_elf_tdata (gent->owner)->got;
951fd09b 5619 gent->got.offset = s->_raw_size;
d881513a
AM		 5620 s->_raw_size
5621 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 5622 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 5623 if ((info->shared
5624 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5625 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5626 || h->root.type != bfd_link_hash_undefweak))
e717da7e 5627 ppc64_elf_tdata (gent->owner)->relgot->_raw_size
e7b938ca 5628 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 5629 ? 2 * sizeof (Elf64_External_Rela)
5630 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 5631 }
5632 else
5633 gent->got.offset = (bfd_vma) -1;
65f38f15 5634
65f38f15 5635 if (eh->dyn_relocs == NULL)
b34976b6 5636 return TRUE;
65f38f15
AM		 5637
5638 /* In the shared -Bsymbolic case, discard space allocated for
5639 dynamic pc-relative relocs against symbols which turn out to be
5640 defined in regular objects. For the normal shared case, discard
5641 space for relocs that have become local due to symbol visibility
5642 changes. */
5643
5644 if (info->shared)
5645 {
9c7a29a3
AM		 5646 /* Relocs that use pc_count are those that appear on a call insn,
5647 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
5648 generated via assembly. We want calls to protected symbols to
5649 resolve directly to the function rather than going via the plt.
5650 If people want function pointer comparisons to work as expected
5651 then they should avoid writing weird assembly. */
09695f56 5652 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 5653 {
5654 struct ppc_dyn_relocs **pp;
5655
5656 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 5657 {
65f38f15
AM		 5658 p->count -= p->pc_count;
5659 p->pc_count = 0;
5660 if (p->count == 0)
5661 *pp = p->next;
5662 else
5663 pp = &p->next;
5bd4f169 5664 }
65f38f15 5665 }
4e795f50
AM		 5666
5667 /* Also discard relocs on undefined weak syms with non-default
5668 visibility. */
5669 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5670 && h->root.type == bfd_link_hash_undefweak)
5671 eh->dyn_relocs = NULL;
65f38f15 5672 }
f4656909 5673 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 5674 {
5675 /* For the non-shared case, discard space for relocs against
5676 symbols which turn out to need copy relocs or are not
5677 dynamic. */
5678
5679 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 5680 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5681 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
65f38f15
AM		 5682 {
5683 /* Make sure this symbol is output as a dynamic symbol.
5684 Undefined weak syms won't yet be marked as dynamic. */
5685 if (h->dynindx == -1
5686 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5687 {
ec338859 5688 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
b34976b6 5689 return FALSE;
65f38f15
AM		 5690 }
5691
5692 /* If that succeeded, we know we'll be keeping all the
5693 relocs. */
5694 if (h->dynindx != -1)
5695 goto keep;
5696 }
5697
5698 eh->dyn_relocs = NULL;
5699
ec338859 5700 keep: ;
65f38f15
AM		 5701 }
5702
5703 /* Finally, allocate space. */
5704 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5705 {
5706 asection *sreloc = elf_section_data (p->sec)->sreloc;
5707 sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
5708 }
5709
b34976b6 5710 return TRUE;
65f38f15
AM		 5711}
5712
5713/* Find any dynamic relocs that apply to read-only sections. */
5714
b34976b6 5715static bfd_boolean
4ce794b7 5716readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 5717{
5718 struct ppc_link_hash_entry *eh;
5719 struct ppc_dyn_relocs *p;
5720
e92d460e
AM		 5721 if (h->root.type == bfd_link_hash_warning)
5722 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5723
65f38f15
AM		 5724 eh = (struct ppc_link_hash_entry *) h;
5725 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5726 {
5727 asection *s = p->sec->output_section;
5728
5729 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5730 {
4ce794b7 5731 struct bfd_link_info *info = inf;
65f38f15
AM		 5732
5733 info->flags |= DF_TEXTREL;
5734
5735 /* Not an error, just cut short the traversal. */
b34976b6 5736 return FALSE;
65f38f15
AM		 5737 }
5738 }
b34976b6 5739 return TRUE;
65f38f15
AM		 5740}
5741
5742/* Set the sizes of the dynamic sections. */
5743
b34976b6 5744static bfd_boolean
4ce794b7
AM		 5745ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5746 struct bfd_link_info *info)
65f38f15
AM		 5747{
5748 struct ppc_link_hash_table *htab;
5749 bfd *dynobj;
5750 asection *s;
b34976b6 5751 bfd_boolean relocs;
65f38f15
AM		 5752 bfd *ibfd;
5753
5754 htab = ppc_hash_table (info);
5755 dynobj = htab->elf.dynobj;
5756 if (dynobj == NULL)
5757 abort ();
5758
5759 if (htab->elf.dynamic_sections_created)
5760 {
5761 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 5762 if (info->executable)
65f38f15
AM		 5763 {
5764 s = bfd_get_section_by_name (dynobj, ".interp");
5765 if (s == NULL)
5766 abort ();
5767 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
5768 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5769 }
5770 }
5771
5772 /* Set up .got offsets for local syms, and space for local dynamic
5773 relocs. */
5774 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5775 {
411e1bfb
AM		 5776 struct got_entry **lgot_ents;
5777 struct got_entry **end_lgot_ents;
e7b938ca 5778 char *lgot_masks;
65f38f15
AM		 5779 bfd_size_type locsymcount;
5780 Elf_Internal_Shdr *symtab_hdr;
5781 asection *srel;
5782
5783 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
5784 continue;
5785
e717da7e
AM		 5786 if (ppc64_tlsld_got (ibfd)->refcount > 0)
5787 {
5788 s = ppc64_elf_tdata (ibfd)->got;
5789 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
5790 s->_raw_size += 16;
5791 if (info->shared)
5792 {
5793 srel = ppc64_elf_tdata (ibfd)->relgot;
5794 srel->_raw_size += sizeof (Elf64_External_Rela);
5795 }
5796 }
5797 else
5798 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
5799
65f38f15
AM		 5800 for (s = ibfd->sections; s != NULL; s = s->next)
5801 {
ec338859 5802 struct ppc_dyn_relocs *p;
65f38f15 5803
ec338859
AM		 5804 for (p = *((struct ppc_dyn_relocs **)
5805 &elf_section_data (s)->local_dynrel);
5806 p != NULL;
5807 p = p->next)
65f38f15 5808 {
ec338859
AM		 5809 if (!bfd_is_abs_section (p->sec)
5810 && bfd_is_abs_section (p->sec->output_section))
5811 {
5812 /* Input section has been discarded, either because
5813 it is a copy of a linkonce section or due to
5814 linker script /DISCARD/, so we'll be discarding
5815 the relocs too. */
5816 }
248866a8 5817 else if (p->count != 0)
ec338859
AM		 5818 {
5819 srel = elf_section_data (p->sec)->sreloc;
5820 srel->_raw_size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 5821 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
5822 info->flags |= DF_TEXTREL;
ec338859 5823 }
65f38f15
AM		 5824 }
5825 }
5826
411e1bfb
AM		 5827 lgot_ents = elf_local_got_ents (ibfd);
5828 if (!lgot_ents)
65f38f15
AM		 5829 continue;
5830
5831 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5832 locsymcount = symtab_hdr->sh_info;
411e1bfb 5833 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 5834 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 5835 s = ppc64_elf_tdata (ibfd)->got;
5836 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 5837 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 5838 {
411e1bfb
AM		 5839 struct got_entry *ent;
5840
5841 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
5842 if (ent->got.refcount > 0)
5843 {
e7b938ca 5844 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 5845 {
e717da7e 5846 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 5847 {
e717da7e 5848 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
411e1bfb
AM		 5849 s->_raw_size += 16;
5850 if (info->shared)
5851 srel->_raw_size += sizeof (Elf64_External_Rela);
5852 }
e717da7e 5853 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM		 5854 }
5855 else
5856 {
5857 ent->got.offset = s->_raw_size;
e7b938ca 5858 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb
AM		 5859 {
5860 s->_raw_size += 16;
5861 if (info->shared)
5862 srel->_raw_size += 2 * sizeof (Elf64_External_Rela);
5863 }
5864 else
5865 {
5866 s->_raw_size += 8;
5867 if (info->shared)
5868 srel->_raw_size += sizeof (Elf64_External_Rela);
5869 }
5870 }
5871 }
5872 else
5873 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 5874 }
5875 }
5876
5877 /* Allocate global sym .plt and .got entries, and space for global
5878 sym dynamic relocs. */
4ce794b7 5879 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM		 5880
5881 /* We now have determined the sizes of the various dynamic sections.
5882 Allocate memory for them. */
b34976b6 5883 relocs = FALSE;
65f38f15
AM		 5884 for (s = dynobj->sections; s != NULL; s = s->next)
5885 {
5886 if ((s->flags & SEC_LINKER_CREATED) == 0)
5887 continue;
5888
411e1bfb
AM		 5889 /* Reset _cooked_size since prelim layout will set it wrongly,
5890 and a non-zero _cooked_size sticks. */
5891 s->_cooked_size = 0;
5892
4ce794b7 5893 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 5894 /* These haven't been allocated yet; don't strip. */
5895 continue;
e717da7e
AM		 5896 else if (s == htab->got
5897 || s == htab->plt
4ce794b7 5898 || s == htab->glink)
65f38f15
AM		 5899 {
5900 /* Strip this section if we don't need it; see the
5901 comment below. */
5bd4f169 5902 }
65f38f15 5903 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169
AM		 5904 {
5905 if (s->_raw_size == 0)
5906 {
5907 /* If we don't need this section, strip it from the
5908 output file. This is mostly to handle .rela.bss and
5909 .rela.plt. We must create both sections in
5910 create_dynamic_sections, because they must be created
5911 before the linker maps input sections to output
5912 sections. The linker does that before
5913 adjust_dynamic_symbol is called, and it is that
5914 function which decides whether anything needs to go
5915 into these sections. */
5bd4f169
AM		 5916 }
5917 else
5918 {
4ce794b7 5919 if (s != htab->relplt)
b34976b6 5920 relocs = TRUE;
5bd4f169
AM		 5921
5922 /* We use the reloc_count field as a counter if we need
5923 to copy relocs into the output file. */
5924 s->reloc_count = 0;
5925 }
5926 }
65f38f15 5927 else
5bd4f169
AM		 5928 {
5929 /* It's not one of our sections, so don't allocate space. */
5930 continue;
5931 }
5932
65f38f15 5933 if (s->_raw_size == 0)
5bd4f169
AM		 5934 {
5935 _bfd_strip_section_from_output (info, s);
5936 continue;
5937 }
5938
5f333394
AM		 5939 /* .plt is in the bss section. We don't initialise it. */
5940 if ((s->flags & SEC_LOAD) == 0)
5941 continue;
5942
65f38f15
AM		 5943 /* Allocate memory for the section contents. We use bfd_zalloc
5944 here in case unused entries are not reclaimed before the
5945 section's contents are written out. This should not happen,
411e1bfb
AM		 5946 but this way if it does we get a R_PPC64_NONE reloc in .rela
5947 sections instead of garbage.
5948 We also rely on the section contents being zero when writing
5949 the GOT. */
4ce794b7 5950 s->contents = bfd_zalloc (dynobj, s->_raw_size);
65f38f15 5951 if (s->contents == NULL)
b34976b6 5952 return FALSE;
5bd4f169
AM		 5953 }
5954
e717da7e
AM		 5955 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5956 {
5957 s = ppc64_elf_tdata (ibfd)->got;
5958 if (s != NULL && s != htab->got)
5959 {
5960 s->_cooked_size = 0;
5961 if (s->_raw_size == 0)
5962 _bfd_strip_section_from_output (info, s);
5963 else
5964 {
5965 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5966 if (s->contents == NULL)
5967 return FALSE;
5968 }
5969 }
5970 s = ppc64_elf_tdata (ibfd)->relgot;
5971 if (s != NULL)
5972 {
5973 s->_cooked_size = 0;
5974 if (s->_raw_size == 0)
5975 _bfd_strip_section_from_output (info, s);
5976 else
5977 {
5978 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5979 if (s->contents == NULL)
5980 return FALSE;
5981 relocs = TRUE;
5982 s->reloc_count = 0;
5983 }
5984 }
5985 }
5986
e86ce104 5987 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 5988 {
5989 /* Add some entries to the .dynamic section. We fill in the
5990 values later, in ppc64_elf_finish_dynamic_sections, but we
5991 must add the entries now so that we get the correct size for
5992 the .dynamic section. The DT_DEBUG entry is filled in by the
5993 dynamic linker and used by the debugger. */
dc810e39 5994#define add_dynamic_entry(TAG, VAL) \
4ce794b7 5995 bfd_elf64_add_dynamic_entry (info, (TAG), (VAL))
dc810e39 5996
36af4a4e 5997 if (info->executable)
5bd4f169 5998 {
dc810e39 5999 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 6000 return FALSE;
5bd4f169
AM		 6001 }
6002
4ce794b7 6003 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5bd4f169 6004 {
dc810e39
AM		 6005 if (!add_dynamic_entry (DT_PLTGOT, 0)
6006 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6007 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 6008 || !add_dynamic_entry (DT_JMPREL, 0)
6009 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 6010 return FALSE;
5bd4f169
AM		 6011 }
6012
19397422
AM		 6013 if (NO_OPD_RELOCS)
6014 {
6015 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
6016 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 6017 return FALSE;
19397422
AM		 6018 }
6019
5bd4f169
AM		 6020 if (relocs)
6021 {
dc810e39
AM		 6022 if (!add_dynamic_entry (DT_RELA, 0)
6023 || !add_dynamic_entry (DT_RELASZ, 0)
6024 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 6025 return FALSE;
5bd4f169 6026
65f38f15
AM		 6027 /* If any dynamic relocs apply to a read-only section,
6028 then we need a DT_TEXTREL entry. */
248866a8 6029 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 6030 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 6031
65f38f15 6032 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 6033 {
65f38f15 6034 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 6035 return FALSE;
5bd4f169 6036 }
5bd4f169 6037 }
5bd4f169 6038 }
65f38f15 6039#undef add_dynamic_entry
5bd4f169 6040
b34976b6 6041 return TRUE;
5bd4f169
AM		 6042}
6043
721956f4 6044/* Determine the type of stub needed, if any, for a call. */
5bd4f169 6045
4ce794b7
AM		 6046static inline enum ppc_stub_type
6047ppc_type_of_stub (asection *input_sec,
6048 const Elf_Internal_Rela *rel,
6049 struct ppc_link_hash_entry **hash,
6050 bfd_vma destination)
5bd4f169 6051{
721956f4
AM		 6052 struct ppc_link_hash_entry *h = *hash;
6053 bfd_vma location;
6054 bfd_vma branch_offset;
6055 bfd_vma max_branch_offset;
4ce794b7 6056 enum elf_ppc64_reloc_type r_type;
5bd4f169 6057
721956f4
AM		 6058 if (h != NULL)
6059 {
6060 if (h->oh != NULL
721956f4 6061 && h->oh->dynindx != -1)
5bd4f169 6062 {
411e1bfb
AM		 6063 struct plt_entry *ent;
6064 for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next)
6065 if (ent->addend == rel->r_addend
6066 && ent->plt.offset != (bfd_vma) -1)
6067 {
6068 *hash = (struct ppc_link_hash_entry *) h->oh;
6069 return ppc_stub_plt_call;
6070 }
5bd4f169
AM		 6071 }
6072
ad8e1ba5
AM		 6073 if (h->elf.root.type != bfd_link_hash_defined
6074 && h->elf.root.type != bfd_link_hash_defweak)
721956f4 6075 return ppc_stub_none;
5d1634d7 6076 }
5d1634d7 6077
721956f4
AM		 6078 /* Determine where the call point is. */
6079 location = (input_sec->output_offset
6080 + input_sec->output_section->vma
6081 + rel->r_offset);
5d1634d7 6082
721956f4
AM		 6083 branch_offset = destination - location;
6084 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 6085
721956f4
AM		 6086 /* Determine if a long branch stub is needed. */
6087 max_branch_offset = 1 << 25;
4ce794b7 6088 if (r_type != R_PPC64_REL24)
721956f4 6089 max_branch_offset = 1 << 15;
5d1634d7 6090
721956f4
AM		 6091 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
6092 /* We need a stub. Figure out whether a long_branch or plt_branch
6093 is needed later. */
6094 return ppc_stub_long_branch;
5d1634d7 6095
721956f4 6096 return ppc_stub_none;
5d1634d7
AM		 6097}
6098
6099/* Build a .plt call stub. */
6100
4ce794b7
AM		 6101static inline bfd_byte *
6102build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM		 6103{
6104#define PPC_LO(v) ((v) & 0xffff)
6105#define PPC_HI(v) (((v) >> 16) & 0xffff)
6106#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6107
5d1634d7 6108 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 6109 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM		 6110 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6111 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6112 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 6113 offset += 8;
6114 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
6115 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6116 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 6117 offset += 8;
6118 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
6119 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6120 bfd_put_32 (obfd, BCTR, p), p += 4;
6121 return p;
6122}
6123
b34976b6 6124static bfd_boolean
4ce794b7 6125ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 6126{
721956f4
AM		 6127 struct ppc_stub_hash_entry *stub_entry;
6128 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 6129 struct bfd_link_info *info;
6130 struct ppc_link_hash_table *htab;
721956f4
AM		 6131 bfd_byte *loc;
6132 bfd_byte *p;
6133 unsigned int indx;
411e1bfb 6134 struct plt_entry *ent;
721956f4
AM		 6135 bfd_vma off;
6136 int size;
5d1634d7 6137
721956f4
AM		 6138 /* Massage our args to the form they really have. */
6139 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 6140 info = in_arg;
5d1634d7 6141
5d1634d7
AM		 6142 htab = ppc_hash_table (info);
6143
721956f4 6144 /* Make a note of the offset within the stubs for this entry. */
97b639ba
AM		 6145 stub_entry->stub_offset = stub_entry->stub_sec->_cooked_size;
6146 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 6147
4ce794b7 6148 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 6149 switch (stub_entry->stub_type)
5d1634d7 6150 {
721956f4 6151 case ppc_stub_long_branch:
ad8e1ba5 6152 case ppc_stub_long_branch_r2off:
721956f4
AM		 6153 /* Branches are relative. This is where we are going to. */
6154 off = (stub_entry->target_value
6155 + stub_entry->target_section->output_offset
6156 + stub_entry->target_section->output_section->vma);
5d1634d7 6157
721956f4
AM		 6158 /* And this is where we are coming from. */
6159 off -= (stub_entry->stub_offset
97b639ba
AM		 6160 + stub_entry->stub_sec->output_offset
6161 + stub_entry->stub_sec->output_section->vma);
e86ce104 6162
ad8e1ba5
AM		 6163 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
6164 size = 4;
6165 else
6166 {
6167 bfd_vma r2off;
6168
6169 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6170 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 6171 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6172 loc += 4;
97b639ba 6173 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6174 loc += 4;
97b639ba 6175 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 6176 loc += 4;
6177 off -= 12;
6178 size = 16;
6179 }
97b639ba 6180 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5
AM		 6181
6182 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
721956f4 6183 break;
e86ce104 6184
721956f4 6185 case ppc_stub_plt_branch:
ad8e1ba5 6186 case ppc_stub_plt_branch_r2off:
721956f4
AM		 6187 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6188 stub_entry->root.string + 9,
b34976b6 6189 FALSE, FALSE);
721956f4
AM		 6190 if (br_entry == NULL)
6191 {
6192 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
6193 stub_entry->root.string + 9);
b34976b6
AM		 6194 htab->stub_error = TRUE;
6195 return FALSE;
721956f4
AM		 6196 }
6197
6198 off = (stub_entry->target_value
6199 + stub_entry->target_section->output_offset
6200 + stub_entry->target_section->output_section->vma);
6201
4ce794b7
AM		 6202 bfd_put_64 (htab->brlt->owner, off,
6203 htab->brlt->contents + br_entry->offset);
721956f4
AM		 6204
6205 if (info->shared)
6206 {
6207 /* Create a reloc for the branch lookup table entry. */
6208 Elf_Internal_Rela rela;
ad8e1ba5 6209 bfd_byte *rl;
5d1634d7 6210
721956f4 6211 rela.r_offset = (br_entry->offset
4ce794b7
AM		 6212 + htab->brlt->output_offset
6213 + htab->brlt->output_section->vma);
721956f4
AM		 6214 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
6215 rela.r_addend = off;
6216
4ce794b7
AM		 6217 rl = htab->relbrlt->contents;
6218 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
6219 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM		 6220 }
6221
6222 off = (br_entry->offset
4ce794b7
AM		 6223 + htab->brlt->output_offset
6224 + htab->brlt->output_section->vma
6225 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 6226 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6227
ad8e1ba5 6228 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 6229 {
6230 (*_bfd_error_handler)
e86ce104 6231 (_("linkage table error against `%s'"),
721956f4 6232 stub_entry->root.string);
5d1634d7 6233 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 6234 htab->stub_error = TRUE;
6235 return FALSE;
5d1634d7 6236 }
41bd81ab 6237
721956f4 6238 indx = off;
ad8e1ba5
AM		 6239 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
6240 {
97b639ba 6241 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6242 loc += 4;
97b639ba 6243 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5
AM		 6244 size = 16;
6245 }
6246 else
6247 {
6248 bfd_vma r2off;
6249
6250 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6251 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 6252 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6253 loc += 4;
97b639ba 6254 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6255 loc += 4;
97b639ba 6256 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 6257 loc += 4;
97b639ba 6258 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6259 loc += 4;
97b639ba 6260 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 6261 size = 28;
6262 }
6263 loc += 4;
97b639ba 6264 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 6265 loc += 4;
97b639ba 6266 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 6267 break;
5d1634d7 6268
721956f4 6269 case ppc_stub_plt_call:
c862ae31
AM		 6270 /* Do the best we can for shared libraries built without
6271 exporting ".foo" for each "foo". This can happen when symbol
6272 versioning scripts strip all bar a subset of symbols. */
6273 if (stub_entry->h->oh->root.type != bfd_link_hash_defined
6274 && stub_entry->h->oh->root.type != bfd_link_hash_defweak)
6275 {
6276 /* Point the symbol at the stub. There may be multiple stubs,
6277 we don't really care; The main thing is to make this sym
8f3bab57
AM		 6278 defined somewhere. Maybe defining the symbol in the stub
6279 section is a silly idea. If we didn't do this, htab->top_id
6280 could disappear. */
c862ae31
AM		 6281 stub_entry->h->oh->root.type = bfd_link_hash_defined;
6282 stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec;
6283 stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset;
6284 }
6285
721956f4 6286 /* Now build the stub. */
411e1bfb
AM		 6287 off = (bfd_vma) -1;
6288 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6289 if (ent->addend == stub_entry->addend)
6290 {
6291 off = ent->plt.offset;
6292 break;
6293 }
721956f4
AM		 6294 if (off >= (bfd_vma) -2)
6295 abort ();
6296
6297 off &= ~ (bfd_vma) 1;
4ce794b7
AM		 6298 off += (htab->plt->output_offset
6299 + htab->plt->output_section->vma
6300 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6301 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6302
ad8e1ba5 6303 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 6304 {
6305 (*_bfd_error_handler)
6306 (_("linkage table error against `%s'"),
6307 stub_entry->h->elf.root.root.string);
6308 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 6309 htab->stub_error = TRUE;
6310 return FALSE;
721956f4
AM		 6311 }
6312
97b639ba 6313 p = build_plt_stub (htab->stub_bfd, loc, off);
721956f4
AM		 6314 size = p - loc;
6315 break;
6316
6317 default:
6318 BFD_FAIL ();
b34976b6 6319 return FALSE;
721956f4
AM		 6320 }
6321
97b639ba
AM		 6322 stub_entry->stub_sec->_cooked_size += size;
6323
6324 if (htab->emit_stub_syms
6325 && !(stub_entry->stub_type == ppc_stub_plt_call
6326 && stub_entry->h->oh->root.type == bfd_link_hash_defined
6327 && stub_entry->h->oh->root.u.def.section == stub_entry->stub_sec
6328 && stub_entry->h->oh->root.u.def.value == stub_entry->stub_offset))
6329 {
6330 struct elf_link_hash_entry *h;
6331 h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string,
6332 TRUE, FALSE, FALSE);
6333 if (h == NULL)
6334 return FALSE;
6335 if (h->root.type == bfd_link_hash_new)
6336 {
6337 h->root.type = bfd_link_hash_defined;
6338 h->root.u.def.section = stub_entry->stub_sec;
6339 h->root.u.def.value = stub_entry->stub_offset;
6340 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
6341 | ELF_LINK_HASH_DEF_REGULAR
6342 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
6343 | ELF_LINK_FORCED_LOCAL);
6344 }
6345 }
6346
b34976b6 6347 return TRUE;
721956f4
AM		 6348}
6349
6350/* As above, but don't actually build the stub. Just bump offset so
6351 we know stub section sizes, and select plt_branch stubs where
6352 long_branch stubs won't do. */
6353
b34976b6 6354static bfd_boolean
4ce794b7 6355ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 6356{
6357 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 6358 struct bfd_link_info *info;
721956f4
AM		 6359 struct ppc_link_hash_table *htab;
6360 bfd_vma off;
6361 int size;
6362
6363 /* Massage our args to the form they really have. */
6364 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 6365 info = in_arg;
6366
6367 htab = ppc_hash_table (info);
721956f4
AM		 6368
6369 if (stub_entry->stub_type == ppc_stub_plt_call)
6370 {
411e1bfb 6371 struct plt_entry *ent;
58ac9f71 6372 off = (bfd_vma) -1;
411e1bfb
AM		 6373 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6374 if (ent->addend == stub_entry->addend)
6375 {
6376 off = ent->plt.offset & ~(bfd_vma) 1;
6377 break;
6378 }
58ac9f71 6379 if (off >= (bfd_vma) -2)
411e1bfb 6380 abort ();
4ce794b7
AM		 6381 off += (htab->plt->output_offset
6382 + htab->plt->output_section->vma
6383 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6384 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6385
ad8e1ba5 6386 size = PLT_CALL_STUB_SIZE;
4ce794b7 6387 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM		 6388 size += 4;
6389 }
6390 else
6391 {
ad8e1ba5
AM		 6392 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
6393 variants. */
721956f4
AM		 6394 off = (stub_entry->target_value
6395 + stub_entry->target_section->output_offset
6396 + stub_entry->target_section->output_section->vma);
6397 off -= (stub_entry->stub_sec->_raw_size
6398 + stub_entry->stub_sec->output_offset
6399 + stub_entry->stub_sec->output_section->vma);
6400
ad8e1ba5
AM		 6401 /* Reset the stub type from the plt variant in case we now
6402 can reach with a shorter stub. */
6403 if (stub_entry->stub_type >= ppc_stub_plt_branch)
6404 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
6405
6406 size = 4;
6407 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
6408 {
6409 off -= 12;
6410 size = 16;
6411 }
6412
6413 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 6414 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
6415 {
6416 struct ppc_branch_hash_entry *br_entry;
6417
6418 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6419 stub_entry->root.string + 9,
b34976b6 6420 TRUE, FALSE);
721956f4
AM		 6421 if (br_entry == NULL)
6422 {
6423 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
6424 stub_entry->root.string + 9);
b34976b6
AM		 6425 htab->stub_error = TRUE;
6426 return FALSE;
721956f4
AM		 6427 }
6428
6429 if (br_entry->iter != htab->stub_iteration)
6430 {
6431 br_entry->iter = htab->stub_iteration;
4ce794b7
AM		 6432 br_entry->offset = htab->brlt->_raw_size;
6433 htab->brlt->_raw_size += 8;
63bc6f6c
AM		 6434
6435 if (info->shared)
6436 htab->relbrlt->_raw_size += sizeof (Elf64_External_Rela);
721956f4 6437 }
ad8e1ba5
AM		 6438
6439 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 6440 size = 16;
ad8e1ba5
AM		 6441 if (stub_entry->stub_type != ppc_stub_plt_branch)
6442 size = 28;
721956f4
AM		 6443 }
6444 }
6445
6446 stub_entry->stub_sec->_raw_size += size;
b34976b6 6447 return TRUE;
721956f4
AM		 6448}
6449
6450/* Set up various things so that we can make a list of input sections
6451 for each output section included in the link. Returns -1 on error,
cedb70c5 6452 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 6453
6454int
4ce794b7 6455ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
721956f4
AM		 6456{
6457 bfd *input_bfd;
734b6cf9 6458 int top_id, top_index, id;
721956f4 6459 asection *section;
734b6cf9 6460 asection **input_list;
721956f4
AM		 6461 bfd_size_type amt;
6462 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6463
4ce794b7 6464 if (htab->brlt == NULL)
721956f4
AM		 6465 return 0;
6466
1e2f5b6e 6467 /* Find the top input section id. */
3d6f9012 6468 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 6469 input_bfd != NULL;
6470 input_bfd = input_bfd->link_next)
6471 {
721956f4
AM		 6472 for (section = input_bfd->sections;
6473 section != NULL;
6474 section = section->next)
6475 {
6476 if (top_id < section->id)
6477 top_id = section->id;
6478 }
6479 }
721956f4 6480
8f3bab57 6481 htab->top_id = top_id;
721956f4 6482 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 6483 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 6484 if (htab->stub_group == NULL)
6485 return -1;
6486
3d6f9012
AM		 6487 /* Set toc_off for com, und, abs and ind sections. */
6488 for (id = 0; id < 3; id++)
6489 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 6490
3d6f9012 6491 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 6492
6493 /* We can't use output_bfd->section_count here to find the top output
6494 section index as some sections may have been removed, and
6495 _bfd_strip_section_from_output doesn't renumber the indices. */
6496 for (section = output_bfd->sections, top_index = 0;
6497 section != NULL;
6498 section = section->next)
6499 {
6500 if (top_index < section->index)
6501 top_index = section->index;
6502 }
6503
6504 htab->top_index = top_index;
6505 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 6506 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 6507 htab->input_list = input_list;
6508 if (input_list == NULL)
6509 return -1;
6510
721956f4
AM		 6511 return 1;
6512}
6513
e717da7e
AM		 6514/* The linker repeatedly calls this function for each TOC input section
6515 and linker generated GOT section. Group input bfds such that the toc
6516 within a group is less than 64k in size. Will break with cute linker
6517 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 6518
6519void
4ce794b7 6520ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 6521{
6522 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6523
6524 if (!htab->no_multi_toc)
6525 {
6526 bfd_vma addr = isec->output_offset + isec->output_section->vma;
6527 bfd_vma off = addr - htab->toc_curr;
6528 if (off + isec->_raw_size > 0x10000)
6529 {
6530 htab->toc_curr = addr;
6531 htab->multi_toc_needed = 1;
6532 }
6533 elf_gp (isec->owner) = (htab->toc_curr
6534 - elf_gp (isec->output_section->owner)
6535 + TOC_BASE_OFF);
6536 }
6537}
6538
6539/* Called after the last call to the above function. */
6540
6541void
4ce794b7
AM		 6542ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED,
6543 struct bfd_link_info *info)
ad8e1ba5
AM		 6544{
6545 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5
AM		 6546
6547 /* toc_curr tracks the TOC offset used for code sections below in
6548 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 6549 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 6550}
6551
9b5ecbd0
AM		 6552/* No toc references were found in ISEC. If the code in ISEC makes no
6553 calls, then there's no need to use toc adjusting stubs when branching
6554 into ISEC. Actually, indirect calls from ISEC are OK as they will
6555 load r2. */
6556
6557static int
4ce794b7 6558toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0
AM		 6559{
6560 bfd_byte *contents;
6561 bfd_size_type i;
6562 int ret;
6563 int branch_ok;
6564
772119ce
AM		 6565 /* We know none of our code bearing sections will need toc stubs. */
6566 if ((isec->flags & SEC_LINKER_CREATED) != 0)
6567 return 0;
6568
082c50f8
AM		 6569 if (isec->_raw_size == 0)
6570 return 0;
6571
9b5ecbd0
AM		 6572 /* Hack for linux kernel. .fixup contains branches, but only back to
6573 the function that hit an exception. */
6574 branch_ok = strcmp (isec->name, ".fixup") == 0;
6575
6576 contents = elf_section_data (isec)->this_hdr.contents;
6577 if (contents == NULL)
6578 {
6579 contents = bfd_malloc (isec->_raw_size);
6580 if (contents == NULL)
6581 return -1;
6582 if (! bfd_get_section_contents (isec->owner, isec, contents,
e717da7e 6583 0, isec->_raw_size))
9b5ecbd0
AM		 6584 {
6585 free (contents);
6586 return -1;
6587 }
6588 if (info->keep_memory)
6589 elf_section_data (isec)->this_hdr.contents = contents;
6590 }
6591
6592 /* Code scan, because we don't necessarily have relocs on calls to
6593 static functions. */
6594 ret = 0;
6595 for (i = 0; i < isec->_raw_size; i += 4)
6596 {
6597 unsigned long insn = bfd_get_32 (isec->owner, contents + i);
6598 /* Is this a branch? */
772119ce 6599 if ((insn & (0x3f << 26)) == (18 << 26)
9b5ecbd0
AM		 6600 /* If branch and link, it's a function call. */
6601 && ((insn & 1) != 0
6602 /* Sibling calls use a plain branch. I don't know a way
6603 of deciding whether a branch is really a sibling call. */
6604 || !branch_ok))
6605 {
6606 ret = 1;
6607 break;
6608 }
6609 }
6610
6611 if (elf_section_data (isec)->this_hdr.contents != contents)
6612 free (contents);
6613 return ret;
6614}
6615
721956f4
AM		 6616/* The linker repeatedly calls this function for each input section,
6617 in the order that input sections are linked into output sections.
6618 Build lists of input sections to determine groupings between which
6619 we may insert linker stubs. */
6620
9b5ecbd0 6621bfd_boolean
4ce794b7 6622ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 6623{
6624 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9b5ecbd0 6625 int ret;
721956f4 6626
734b6cf9
AM		 6627 if ((isec->output_section->flags & SEC_CODE) != 0
6628 && isec->output_section->index <= htab->top_index)
721956f4 6629 {
734b6cf9 6630 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 6631 /* Steal the link_sec pointer for our list. */
721956f4 6632#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 6633 /* This happens to make the list in reverse order,
6634 which is what we want. */
734b6cf9
AM		 6635 PREV_SEC (isec) = *list;
6636 *list = isec;
721956f4 6637 }
ad8e1ba5
AM		 6638
6639 /* If a code section has a function that uses the TOC then we need
6640 to use the right TOC (obviously). Also, make sure that .opd gets
ee87f2da
AM		 6641 the correct TOC value for R_PPC64_TOC relocs that don't have or
6642 can't find their function symbol (shouldn't ever happen now). */
ad8e1ba5 6643 if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0)
9b5ecbd0
AM		 6644 {
6645 if (elf_gp (isec->owner) != 0)
6646 htab->toc_curr = elf_gp (isec->owner);
6647 }
6648 else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0)
6649 return FALSE;
6650 else
6651 isec->has_gp_reloc = ret;
ad8e1ba5
AM		 6652
6653 /* Functions that don't use the TOC can belong in any TOC group.
6654 Use the last TOC base. This happens to make _init and _fini
6655 pasting work. */
6656 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 6657 return TRUE;
721956f4
AM		 6658}
6659
6660/* See whether we can group stub sections together. Grouping stub
6661 sections may result in fewer stubs. More importantly, we need to
6662 put all .init* and .fini* stubs at the beginning of the .init or
6663 .fini output sections respectively, because glibc splits the
6664 _init and _fini functions into multiple parts. Putting a stub in
6665 the middle of a function is not a good idea. */
6666
6667static void
4ce794b7
AM		 6668group_sections (struct ppc_link_hash_table *htab,
6669 bfd_size_type stub_group_size,
6670 bfd_boolean stubs_always_before_branch)
721956f4 6671{
734b6cf9
AM		 6672 asection **list = htab->input_list + htab->top_index;
6673 do
721956f4 6674 {
734b6cf9
AM		 6675 asection *tail = *list;
6676 while (tail != NULL)
721956f4 6677 {
734b6cf9
AM		 6678 asection *curr;
6679 asection *prev;
6680 bfd_size_type total;
6681 bfd_boolean big_sec;
6682 bfd_vma curr_toc;
6683
6684 curr = tail;
6685 if (tail->_cooked_size)
6686 total = tail->_cooked_size;
6687 else
6688 total = tail->_raw_size;
6689 big_sec = total >= stub_group_size;
6690 curr_toc = htab->stub_group[tail->id].toc_off;
6691
6692 while ((prev = PREV_SEC (curr)) != NULL
6693 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM		 6694 < stub_group_size)
6695 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 6696 curr = prev;
6697
6698 /* OK, the size from the start of CURR to the end is less
6699 than stub_group_size and thus can be handled by one stub
6700 section. (or the tail section is itself larger than
6701 stub_group_size, in which case we may be toast.) We
6702 should really be keeping track of the total size of stubs
6703 added here, as stubs contribute to the final output
6704 section size. That's a little tricky, and this way will
6705 only break if stubs added make the total size more than
6706 2^25, ie. for the default stub_group_size, if stubs total
6707 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6708 do
721956f4
AM		 6709 {
6710 prev = PREV_SEC (tail);
734b6cf9 6711 /* Set up this stub group. */
721956f4
AM		 6712 htab->stub_group[tail->id].link_sec = curr;
6713 }
734b6cf9
AM		 6714 while (tail != curr && (tail = prev) != NULL);
6715
6716 /* But wait, there's more! Input sections up to stub_group_size
6717 bytes before the stub section can be handled by it too.
6718 Don't do this if we have a really large section after the
6719 stubs, as adding more stubs increases the chance that
6720 branches may not reach into the stub section. */
6721 if (!stubs_always_before_branch && !big_sec)
6722 {
6723 total = 0;
6724 while (prev != NULL
6725 && ((total += tail->output_offset - prev->output_offset)
6726 < stub_group_size)
6727 && htab->stub_group[prev->id].toc_off == curr_toc)
6728 {
6729 tail = prev;
6730 prev = PREV_SEC (tail);
6731 htab->stub_group[tail->id].link_sec = curr;
6732 }
6733 }
6734 tail = prev;
721956f4
AM		 6735 }
6736 }
734b6cf9
AM		 6737 while (list-- != htab->input_list);
6738 free (htab->input_list);
721956f4
AM		 6739#undef PREV_SEC
6740}
6741
721956f4
AM		 6742/* Determine and set the size of the stub section for a final link.
6743
6744 The basic idea here is to examine all the relocations looking for
6745 PC-relative calls to a target that is unreachable with a "bl"
6746 instruction. */
6747
b34976b6 6748bfd_boolean
4ce794b7 6749ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 6750 struct bfd_link_info *info,
6751 bfd_signed_vma group_size,
6752 asection *(*add_stub_section) (const char *, asection *),
6753 void (*layout_sections_again) (void))
721956f4
AM		 6754{
6755 bfd_size_type stub_group_size;
b34976b6 6756 bfd_boolean stubs_always_before_branch;
721956f4
AM		 6757 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6758
6759 /* Stash our params away. */
721956f4
AM		 6760 htab->add_stub_section = add_stub_section;
6761 htab->layout_sections_again = layout_sections_again;
6762 stubs_always_before_branch = group_size < 0;
6763 if (group_size < 0)
6764 stub_group_size = -group_size;
6765 else
6766 stub_group_size = group_size;
6767 if (stub_group_size == 1)
6768 {
6769 /* Default values. */
58ac9f71
AM		 6770 if (stubs_always_before_branch)
6771 {
6772 stub_group_size = 0x1e00000;
6773 if (htab->has_14bit_branch)
6774 stub_group_size = 0x7800;
6775 }
6776 else
6777 {
6778 stub_group_size = 0x1c00000;
6779 if (htab->has_14bit_branch)
6780 stub_group_size = 0x7000;
6781 }
721956f4
AM		 6782 }
6783
6784 group_sections (htab, stub_group_size, stubs_always_before_branch);
6785
721956f4
AM		 6786 while (1)
6787 {
6788 bfd *input_bfd;
6789 unsigned int bfd_indx;
6790 asection *stub_sec;
b34976b6 6791 bfd_boolean stub_changed;
721956f4
AM		 6792
6793 htab->stub_iteration += 1;
b34976b6 6794 stub_changed = FALSE;
721956f4
AM		 6795
6796 for (input_bfd = info->input_bfds, bfd_indx = 0;
6797 input_bfd != NULL;
6798 input_bfd = input_bfd->link_next, bfd_indx++)
6799 {
6800 Elf_Internal_Shdr *symtab_hdr;
6801 asection *section;
6cdc0ccc 6802 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM		 6803
6804 /* We'll need the symbol table in a second. */
6805 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6806 if (symtab_hdr->sh_info == 0)
6807 continue;
6808
721956f4
AM		 6809 /* Walk over each section attached to the input bfd. */
6810 for (section = input_bfd->sections;
6811 section != NULL;
6812 section = section->next)
6813 {
721956f4 6814 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 6815
6816 /* If there aren't any relocs, then there's nothing more
6817 to do. */
6818 if ((section->flags & SEC_RELOC) == 0
6819 || section->reloc_count == 0)
6820 continue;
6821
6822 /* If this section is a link-once section that will be
6823 discarded, then don't create any stubs. */
6824 if (section->output_section == NULL
6825 || section->output_section->owner != output_bfd)
6826 continue;
6827
1e2f5b6e
AM		 6828 /* Get the relocs. */
6829 internal_relocs
4ce794b7 6830 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 6831 info->keep_memory);
721956f4 6832 if (internal_relocs == NULL)
1e2f5b6e 6833 goto error_ret_free_local;
721956f4
AM		 6834
6835 /* Now examine each relocation. */
6836 irela = internal_relocs;
6837 irelaend = irela + section->reloc_count;
6838 for (; irela < irelaend; irela++)
6839 {
4ce794b7
AM		 6840 enum elf_ppc64_reloc_type r_type;
6841 unsigned int r_indx;
721956f4
AM		 6842 enum ppc_stub_type stub_type;
6843 struct ppc_stub_hash_entry *stub_entry;
6844 asection *sym_sec;
6845 bfd_vma sym_value;
6846 bfd_vma destination;
6847 struct ppc_link_hash_entry *hash;
411e1bfb
AM		 6848 struct elf_link_hash_entry *h;
6849 Elf_Internal_Sym *sym;
721956f4
AM		 6850 char *stub_name;
6851 const asection *id_sec;
6852
6853 r_type = ELF64_R_TYPE (irela->r_info);
6854 r_indx = ELF64_R_SYM (irela->r_info);
6855
4ce794b7 6856 if (r_type >= R_PPC64_max)
721956f4
AM		 6857 {
6858 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 6859 goto error_ret_free_internal;
721956f4
AM		 6860 }
6861
6862 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 6863 if (r_type != R_PPC64_REL24
6864 && r_type != R_PPC64_REL14
6865 && r_type != R_PPC64_REL14_BRTAKEN
6866 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 6867 continue;
6868
6869 /* Now determine the call target, its name, value,
6870 section. */
721956f4 6871 destination = 0;
411e1bfb
AM		 6872 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6873 r_indx, input_bfd))
6874 goto error_ret_free_internal;
6875 hash = (struct ppc_link_hash_entry *) h;
6876
6877 if (hash == NULL)
721956f4
AM		 6878 {
6879 /* It's a local symbol. */
411e1bfb 6880 sym_value = sym->st_value;
721956f4
AM		 6881 destination = (sym_value + irela->r_addend
6882 + sym_sec->output_offset
6883 + sym_sec->output_section->vma);
6884 }
6885 else
6886 {
6887 /* It's an external symbol. */
411e1bfb 6888 sym_value = 0;
721956f4
AM		 6889 if (hash->elf.root.type == bfd_link_hash_defined
6890 || hash->elf.root.type == bfd_link_hash_defweak)
6891 {
721956f4
AM		 6892 sym_value = hash->elf.root.u.def.value;
6893 if (sym_sec->output_section != NULL)
6894 destination = (sym_value + irela->r_addend
6895 + sym_sec->output_offset
6896 + sym_sec->output_section->vma);
6897 }
6898 else if (hash->elf.root.type == bfd_link_hash_undefweak)
6899 ;
6900 else if (hash->elf.root.type == bfd_link_hash_undefined)
6901 ;
6902 else
6903 {
6904 bfd_set_error (bfd_error_bad_value);
6905 goto error_ret_free_internal;
6906 }
6907 }
6908
6909 /* Determine what (if any) linker stub is needed. */
6910 stub_type = ppc_type_of_stub (section, irela, &hash,
6911 destination);
ad8e1ba5
AM		 6912
6913 if (stub_type != ppc_stub_plt_call)
6914 {
6915 /* Check whether we need a TOC adjusting stub.
6916 Since the linker pastes together pieces from
6917 different object files when creating the
6918 _init and _fini functions, it may be that a
6919 call to what looks like a local sym is in
6920 fact a call needing a TOC adjustment. */
6921 if (sym_sec != NULL
6922 && sym_sec->output_section != NULL
6923 && (htab->stub_group[sym_sec->id].toc_off
9b5ecbd0
AM		 6924 != htab->stub_group[section->id].toc_off)
6925 && sym_sec->has_gp_reloc
6926 && section->has_gp_reloc)
ad8e1ba5
AM		 6927 stub_type = ppc_stub_long_branch_r2off;
6928 }
6929
721956f4
AM		 6930 if (stub_type == ppc_stub_none)
6931 continue;
6932
411e1bfb
AM		 6933 /* __tls_get_addr calls might be eliminated. */
6934 if (stub_type != ppc_stub_plt_call
6935 && hash != NULL
6936 && &hash->elf == htab->tls_get_addr
6937 && section->has_tls_reloc
6938 && irela != internal_relocs)
6939 {
6940 /* Get tls info. */
e7b938ca 6941 char *tls_mask;
411e1bfb 6942
0d4792f7 6943 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
411e1bfb
AM		 6944 irela - 1, input_bfd))
6945 goto error_ret_free_internal;
e7b938ca 6946 if (*tls_mask != 0)
411e1bfb
AM		 6947 continue;
6948 }
6949
721956f4
AM		 6950 /* Support for grouping stub sections. */
6951 id_sec = htab->stub_group[section->id].link_sec;
6952
6953 /* Get the name of this stub. */
6954 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
6955 if (!stub_name)
6956 goto error_ret_free_internal;
6957
6958 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 6959 stub_name, FALSE, FALSE);
721956f4
AM		 6960 if (stub_entry != NULL)
6961 {
6962 /* The proper stub has already been created. */
6963 free (stub_name);
6964 continue;
6965 }
6966
6967 stub_entry = ppc_add_stub (stub_name, section, htab);
6968 if (stub_entry == NULL)
6969 {
6970 free (stub_name);
6cdc0ccc
AM		 6971 error_ret_free_internal:
6972 if (elf_section_data (section)->relocs == NULL)
6973 free (internal_relocs);
6974 error_ret_free_local:
6975 if (local_syms != NULL
6976 && (symtab_hdr->contents
6977 != (unsigned char *) local_syms))
6978 free (local_syms);
b34976b6 6979 return FALSE;
721956f4
AM		 6980 }
6981
ad8e1ba5 6982 stub_entry->stub_type = stub_type;
721956f4
AM		 6983 stub_entry->target_value = sym_value;
6984 stub_entry->target_section = sym_sec;
721956f4 6985 stub_entry->h = hash;
411e1bfb 6986 stub_entry->addend = irela->r_addend;
b34976b6 6987 stub_changed = TRUE;
721956f4
AM		 6988 }
6989
6990 /* We're done with the internal relocs, free them. */
6cdc0ccc 6991 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 6992 free (internal_relocs);
721956f4 6993 }
6cdc0ccc
AM		 6994
6995 if (local_syms != NULL
6996 && symtab_hdr->contents != (unsigned char *) local_syms)
6997 {
6998 if (!info->keep_memory)
6999 free (local_syms);
7000 else
7001 symtab_hdr->contents = (unsigned char *) local_syms;
7002 }
721956f4
AM		 7003 }
7004
7005 if (!stub_changed)
7006 break;
7007
7008 /* OK, we've added some stubs. Find out the new size of the
7009 stub sections. */
7010 for (stub_sec = htab->stub_bfd->sections;
7011 stub_sec != NULL;
7012 stub_sec = stub_sec->next)
e717da7e
AM		 7013 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7014 {
7015 stub_sec->_raw_size = 0;
7016 stub_sec->_cooked_size = 0;
7017 }
4ce794b7
AM		 7018 htab->brlt->_raw_size = 0;
7019 htab->brlt->_cooked_size = 0;
63bc6f6c
AM		 7020 if (info->shared)
7021 {
7022 htab->relbrlt->_raw_size = 0;
7023 htab->relbrlt->_cooked_size = 0;
7024 }
721956f4 7025
63bc6f6c 7026 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4
AM		 7027
7028 /* Ask the linker to do its stuff. */
7029 (*htab->layout_sections_again) ();
7030 }
7031
afbe61cf
AM		 7032 /* It would be nice to strip .branch_lt from the output if the
7033 section is empty, but it's too late. If we strip sections here,
7034 the dynamic symbol table is corrupted since the section symbol
7035 for the stripped section isn't written. */
721956f4 7036
b34976b6 7037 return TRUE;
721956f4
AM		 7038}
7039
7040/* Called after we have determined section placement. If sections
805fc799 7041 move, we'll be called again. Provide a value for TOCstart. */
721956f4 7042
805fc799 7043bfd_vma
4ce794b7 7044ppc64_elf_toc (bfd *obfd)
721956f4 7045{
805fc799
AM		 7046 asection *s;
7047 bfd_vma TOCstart;
721956f4 7048
805fc799
AM		 7049 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
7050 order. The TOC starts where the first of these sections starts. */
7051 s = bfd_get_section_by_name (obfd, ".got");
7052 if (s == NULL)
7053 s = bfd_get_section_by_name (obfd, ".toc");
7054 if (s == NULL)
7055 s = bfd_get_section_by_name (obfd, ".tocbss");
7056 if (s == NULL)
7057 s = bfd_get_section_by_name (obfd, ".plt");
7058 if (s == NULL)
7059 {
7060 /* This may happen for
7061 o references to TOC base (SYM@toc / TOC[tc0]) without a
7062 .toc directive
7063 o bad linker script
7064 o --gc-sections and empty TOC sections
7065
7066 FIXME: Warn user? */
7067
7068 /* Look for a likely section. We probably won't even be
7069 using TOCstart. */
7070 for (s = obfd->sections; s != NULL; s = s->next)
7071 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
7072 == (SEC_ALLOC | SEC_SMALL_DATA))
7073 break;
721956f4 7074 if (s == NULL)
805fc799
AM		 7075 for (s = obfd->sections; s != NULL; s = s->next)
7076 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
7077 == (SEC_ALLOC | SEC_SMALL_DATA))
7078 break;
721956f4 7079 if (s == NULL)
805fc799
AM		 7080 for (s = obfd->sections; s != NULL; s = s->next)
7081 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
7082 break;
721956f4 7083 if (s == NULL)
805fc799
AM		 7084 for (s = obfd->sections; s != NULL; s = s->next)
7085 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
7086 break;
7087 }
721956f4 7088
805fc799
AM		 7089 TOCstart = 0;
7090 if (s != NULL)
7091 TOCstart = s->output_section->vma + s->output_offset;
721956f4 7092
805fc799 7093 return TOCstart;
721956f4
AM		 7094}
7095
7096/* Build all the stubs associated with the current output file.
7097 The stubs are kept in a hash table attached to the main linker
7098 hash table. This function is called via gldelf64ppc_finish. */
7099
b34976b6 7100bfd_boolean
4ce794b7
AM		 7101ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
7102 struct bfd_link_info *info,
7103 char **stats)
5d1634d7
AM		 7104{
7105 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 7106 asection *stub_sec;
5d1634d7 7107 bfd_byte *p;
e717da7e 7108 int stub_sec_count = 0;
5d1634d7 7109
ad8e1ba5 7110 htab->emit_stub_syms = emit_stub_syms;
721956f4
AM		 7111 for (stub_sec = htab->stub_bfd->sections;
7112 stub_sec != NULL;
7113 stub_sec = stub_sec->next)
e717da7e
AM		 7114 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7115 {
7116 bfd_size_type size;
721956f4 7117
e717da7e
AM		 7118 /* Allocate memory to hold the linker stubs. */
7119 size = stub_sec->_raw_size;
7120 if (size != 0)
7121 {
7122 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
7123 if (stub_sec->contents == NULL)
7124 return FALSE;
7125 }
7126 stub_sec->_cooked_size = 0;
7127 }
5d1634d7 7128
4ce794b7 7129 if (htab->plt != NULL)
5d1634d7 7130 {
9f951329 7131 unsigned int indx;
ad8e1ba5 7132 bfd_vma plt0;
9f951329 7133
721956f4 7134 /* Build the .glink plt call stub. */
4ce794b7
AM		 7135 plt0 = (htab->plt->output_section->vma
7136 + htab->plt->output_offset
7137 - (htab->glink->output_section->vma
7138 + htab->glink->output_offset
ad8e1ba5
AM		 7139 + GLINK_CALL_STUB_SIZE));
7140 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 7141 {
ad8e1ba5
AM		 7142 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
7143 bfd_set_error (bfd_error_bad_value);
7144 return FALSE;
721956f4 7145 }
721956f4 7146
97b639ba
AM		 7147 if (htab->emit_stub_syms)
7148 {
7149 struct elf_link_hash_entry *h;
7150 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
7151 if (h == NULL)
7152 return FALSE;
7153 if (h->root.type == bfd_link_hash_new)
7154 {
7155 h->root.type = bfd_link_hash_defined;
7156 h->root.u.def.section = htab->glink;
7157 h->root.u.def.value = 0;
7158 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
7159 | ELF_LINK_HASH_DEF_REGULAR
7160 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
7161 | ELF_LINK_FORCED_LOCAL);
7162 }
7163 }
4ce794b7
AM		 7164 p = htab->glink->contents;
7165 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 7166 p += 4;
4ce794b7 7167 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 7168 p += 4;
4ce794b7 7169 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 7170 p += 4;
4ce794b7 7171 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7172 p += 4;
4ce794b7 7173 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 7174 p += 4;
4ce794b7 7175 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 7176 p += 4;
4ce794b7 7177 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 7178 p += 4;
4ce794b7 7179 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7180 p += 4;
4ce794b7 7181 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 7182 p += 4;
4ce794b7 7183 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 7184 p += 4;
4ce794b7 7185 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 7186 p += 4;
4ce794b7 7187 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 7188 p += 4;
4ce794b7 7189 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 7190 p += 4;
4ce794b7 7191 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 7192 p += 4;
4ce794b7 7193 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 7194 p += 4;
4ce794b7 7195 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM		 7196 p += 4;
7197
9f951329
AM		 7198 /* Build the .glink lazy link call stubs. */
7199 indx = 0;
4ce794b7 7200 while (p < htab->glink->contents + htab->glink->_raw_size)
9f951329
AM		 7201 {
7202 if (indx < 0x8000)
7203 {
4ce794b7 7204 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 7205 p += 4;
7206 }
7207 else
7208 {
4ce794b7 7209 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 7210 p += 4;
4ce794b7 7211 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 7212 p += 4;
7213 }
4ce794b7
AM		 7214 bfd_put_32 (htab->glink->owner,
7215 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 7216 indx++;
9f951329
AM		 7217 p += 4;
7218 }
4ce794b7 7219 htab->glink->_cooked_size = p - htab->glink->contents;
5d1634d7 7220 }
5d1634d7 7221
4ce794b7 7222 if (htab->brlt->_raw_size != 0)
721956f4 7223 {
4ce794b7
AM		 7224 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
7225 htab->brlt->_raw_size);
7226 if (htab->brlt->contents == NULL)
b34976b6 7227 return FALSE;
721956f4 7228 }
63bc6f6c
AM		 7229 if (info->shared && htab->relbrlt->_raw_size != 0)
7230 {
7231 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
7232 htab->relbrlt->_raw_size);
7233 if (htab->relbrlt->contents == NULL)
7234 return FALSE;
7235 }
5d1634d7 7236
721956f4
AM		 7237 /* Build the stubs as directed by the stub hash table. */
7238 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 7239
721956f4
AM		 7240 for (stub_sec = htab->stub_bfd->sections;
7241 stub_sec != NULL;
7242 stub_sec = stub_sec->next)
e717da7e
AM		 7243 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7244 {
7245 stub_sec_count += 1;
7246 if (stub_sec->_raw_size != stub_sec->_cooked_size)
7247 break;
7248 }
5d1634d7 7249
721956f4 7250 if (stub_sec != NULL
4ce794b7 7251 || htab->glink->_raw_size != htab->glink->_cooked_size)
5d1634d7 7252 {
b34976b6 7253 htab->stub_error = TRUE;
721956f4 7254 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 7255 }
721956f4 7256
d2a300cf
AM		 7257 if (htab->stub_error)
7258 return FALSE;
7259
7260 if (stats != NULL)
7261 {
7262 *stats = bfd_malloc (500);
7263 if (*stats == NULL)
7264 return FALSE;
7265
7266 sprintf (*stats, _("linker stubs in %u groups\n"
7267 " branch %lu\n"
7268 " toc adjust %lu\n"
7269 " long branch %lu\n"
7270 " long toc adj %lu\n"
7271 " plt call %lu"),
e717da7e 7272 stub_sec_count,
4ce794b7
AM		 7273 htab->stub_count[ppc_stub_long_branch - 1],
7274 htab->stub_count[ppc_stub_long_branch_r2off - 1],
7275 htab->stub_count[ppc_stub_plt_branch - 1],
7276 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
7277 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 7278 }
7279 return TRUE;
5bd4f169
AM		 7280}
7281
5bd4f169
AM		 7282/* The RELOCATE_SECTION function is called by the ELF backend linker
7283 to handle the relocations for a section.
7284
7285 The relocs are always passed as Rela structures; if the section
7286 actually uses Rel structures, the r_addend field will always be
7287 zero.
7288
7289 This function is responsible for adjust the section contents as
7290 necessary, and (if using Rela relocs and generating a
1049f94e 7291 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 7292 necessary.
7293
7294 This function does not have to worry about setting the reloc
7295 address or the reloc symbol index.
7296
7297 LOCAL_SYMS is a pointer to the swapped in local symbols.
7298
7299 LOCAL_SECTIONS is an array giving the section in the input file
7300 corresponding to the st_shndx field of each local symbol.
7301
7302 The global hash table entry for the global symbols can be found
7303 via elf_sym_hashes (input_bfd).
7304
1049f94e 7305 When generating relocatable output, this function must handle
5bd4f169
AM		 7306 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7307 going to be the section symbol corresponding to the output
7308 section, which means that the addend must be adjusted
7309 accordingly. */
7310
b34976b6 7311static bfd_boolean
4ce794b7
AM		 7312ppc64_elf_relocate_section (bfd *output_bfd,
7313 struct bfd_link_info *info,
7314 bfd *input_bfd,
7315 asection *input_section,
7316 bfd_byte *contents,
7317 Elf_Internal_Rela *relocs,
7318 Elf_Internal_Sym *local_syms,
7319 asection **local_sections)
5bd4f169 7320{
65f38f15 7321 struct ppc_link_hash_table *htab;
5bd4f169
AM		 7322 Elf_Internal_Shdr *symtab_hdr;
7323 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 7324 Elf_Internal_Rela *rel;
7325 Elf_Internal_Rela *relend;
411e1bfb
AM		 7326 Elf_Internal_Rela outrel;
7327 bfd_byte *loc;
411e1bfb 7328 struct got_entry **local_got_ents;
5bd4f169 7329 bfd_vma TOCstart;
b34976b6
AM		 7330 bfd_boolean ret = TRUE;
7331 bfd_boolean is_opd;
96e0dda4 7332 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 7333 bfd_boolean is_power4 = FALSE;
5bd4f169 7334
1049f94e 7335 if (info->relocatable)
b34976b6 7336 return TRUE;
b491616a 7337
65f38f15 7338 /* Initialize howto table if needed. */
5bd4f169 7339 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 7340 ppc_howto_init ();
7341
65f38f15 7342 htab = ppc_hash_table (info);
411e1bfb 7343 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 7344 TOCstart = elf_gp (output_bfd);
5bd4f169
AM		 7345 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
7346 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 7347 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 7348
5bd4f169
AM		 7349 rel = relocs;
7350 relend = relocs + input_section->reloc_count;
7351 for (; rel < relend; rel++)
7352 {
04c9666a 7353 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM		 7354 bfd_vma addend;
7355 bfd_reloc_status_type r;
7356 Elf_Internal_Sym *sym;
7357 asection *sec;
7358 struct elf_link_hash_entry *h;
721956f4 7359 struct elf_link_hash_entry *fdh;
5bd4f169 7360 const char *sym_name;
0d4792f7 7361 unsigned long r_symndx, toc_symndx;
951fd09b 7362 char tls_mask, tls_gd, tls_type;
0d4792f7 7363 char sym_type;
5bd4f169 7364 bfd_vma relocation;
b34976b6
AM		 7365 bfd_boolean unresolved_reloc;
7366 bfd_boolean warned;
50bc7936 7367 unsigned long insn, mask;
721956f4
AM		 7368 struct ppc_stub_hash_entry *stub_entry;
7369 bfd_vma max_br_offset;
7370 bfd_vma from;
5bd4f169 7371
4ce794b7 7372 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 7373 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 7374
7375 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
7376 symbol of the previous ADDR64 reloc. The symbol gives us the
7377 proper TOC base to use. */
7378 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
7379 && rel != relocs
7380 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
7381 && is_opd)
7382 r_symndx = ELF64_R_SYM (rel[-1].r_info);
7383
4ce794b7
AM		 7384 sym = NULL;
7385 sec = NULL;
7386 h = NULL;
7387 sym_name = NULL;
b34976b6
AM		 7388 unresolved_reloc = FALSE;
7389 warned = FALSE;
65f38f15 7390
0b13192e 7391 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 7392 {
7393 /* It's a local symbol. */
7394 sym = local_syms + r_symndx;
7395 sec = local_sections[r_symndx];
411e1bfb 7396 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
0d4792f7 7397 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 7398 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1e2f5b6e
AM		 7399 if (elf_section_data (sec) != NULL)
7400 {
7401 long *opd_sym_adjust;
7402
f0abc2a1 7403 opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust;
1e2f5b6e
AM		 7404 if (opd_sym_adjust != NULL && sym->st_value % 24 == 0)
7405 relocation += opd_sym_adjust[sym->st_value / 24];
7406 }
5bd4f169
AM		 7407 }
7408 else
7409 {
560e09e9
NC		 7410 RELOC_FOR_GLOBAL_SYMBOL (h, sym_hashes, r_symndx,
7411 symtab_hdr, relocation, sec,
7412 unresolved_reloc, info,
7413 warned);
5bd4f169 7414 sym_name = h->root.root.string;
0d4792f7 7415 sym_type = h->type;
5bd4f169
AM		 7416 }
7417
951fd09b
AM		 7418 /* TLS optimizations. Replace instruction sequences and relocs
7419 based on information we collected in tls_optimize. We edit
7420 RELOCS so that --emit-relocs will output something sensible
7421 for the final instruction stream. */
7422 tls_mask = 0;
7423 tls_gd = 0;
0d4792f7 7424 toc_symndx = 0;
d881513a 7425 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 7426 {
7427 if (h != NULL)
e7b938ca 7428 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
411e1bfb
AM		 7429 else if (local_got_ents != NULL)
7430 {
e7b938ca
AM		 7431 char *lgot_masks;
7432 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
7433 tls_mask = lgot_masks[r_symndx];
411e1bfb 7434 }
0d4792f7
AM		 7435 if (tls_mask == 0 && r_type == R_PPC64_TLS)
7436 {
7437 /* Check for toc tls entries. */
7438 char *toc_tls;
7439
7440 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
7441 rel, input_bfd))
7442 return FALSE;
7443
7444 if (toc_tls)
7445 tls_mask = *toc_tls;
7446 }
7447 }
7448
7449 /* Check that tls relocs are used with tls syms, and non-tls
7450 relocs are used with non-tls syms. */
7451 if (r_symndx != 0
7452 && r_type != R_PPC64_NONE
7453 && (h == NULL
7454 || h->root.type == bfd_link_hash_defined
7455 || h->root.type == bfd_link_hash_defweak)
7456 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
7457 {
7458 if (r_type == R_PPC64_TLS && tls_mask != 0)
7459 /* R_PPC64_TLS is OK against a symbol in the TOC. */
7460 ;
7461 else
7462 (*_bfd_error_handler)
7463 (sym_type == STT_TLS
7464 ? _("%s(%s+0x%lx): %s used with TLS symbol %s")
7465 : _("%s(%s+0x%lx): %s used with non-TLS symbol %s"),
7466 bfd_archive_filename (input_bfd),
7467 input_section->name,
7468 (long) rel->r_offset,
7469 ppc64_elf_howto_table[r_type]->name,
7470 sym_name);
411e1bfb
AM		 7471 }
7472
7473 /* Ensure reloc mapping code below stays sane. */
7474 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
7475 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
7476 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
7477 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
7478 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
7479 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
7480 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
7481 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
7482 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
7483 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
7484 abort ();
0d4792f7 7485
411e1bfb
AM		 7486 switch (r_type)
7487 {
7488 default:
411e1bfb
AM		 7489 break;
7490
7491 case R_PPC64_TOC16:
7492 case R_PPC64_TOC16_LO:
7493 case R_PPC64_TOC16_DS:
7494 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 7495 {
7496 /* Check for toc tls entries. */
7497 char *toc_tls;
951fd09b 7498 int retval;
411e1bfb 7499
0d4792f7
AM		 7500 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
7501 rel, input_bfd);
951fd09b 7502 if (retval == 0)
411e1bfb
AM		 7503 return FALSE;
7504
7505 if (toc_tls)
7506 {
951fd09b 7507 tls_mask = *toc_tls;
411e1bfb
AM		 7508 if (r_type == R_PPC64_TOC16_DS
7509 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 7510 {
7511 if (tls_mask != 0
7512 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
7513 goto toctprel;
7514 }
411e1bfb 7515 else
951fd09b
AM		 7516 {
7517 /* If we found a GD reloc pair, then we might be
7518 doing a GD->IE transition. */
7519 if (retval == 2)
7520 {
7521 tls_gd = TLS_TPRELGD;
7522 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7523 goto tls_get_addr_check;
7524 }
7525 else if (retval == 3)
7526 {
7527 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7528 goto tls_get_addr_check;
7529 }
7530 }
411e1bfb
AM		 7531 }
7532 }
7533 break;
7534
7535 case R_PPC64_GOT_TPREL16_DS:
7536 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 7537 if (tls_mask != 0
7538 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 7539 {
81407a69 7540 toctprel:
411e1bfb
AM		 7541 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
7542 insn &= 31 << 21;
7543 insn |= 0x3c0d0000; /* addis 0,13,0 */
7544 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
7545 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 7546 if (toc_symndx != 0)
7547 {
7548 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
7549 /* We changed the symbol. Start over in order to
7550 get h, sym, sec etc. right. */
7551 rel--;
7552 continue;
7553 }
7554 else
7555 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7556 }
7557 break;
7558
7559 case R_PPC64_TLS:
951fd09b
AM		 7560 if (tls_mask != 0
7561 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 7562 {
50bc7936 7563 bfd_vma rtra;
411e1bfb 7564 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 7565 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 7566 == ((31 << 26) | (13 << 11)))
7567 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 7568 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 7569 == ((31 << 26) | (13 << 16)))
7570 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
7571 else
7572 abort ();
7573 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
7574 /* add -> addi. */
7575 insn = 14 << 26;
7576 else if ((insn & (31 << 1)) == 23 << 1
7577 && ((insn & (31 << 6)) < 14 << 6
7578 || ((insn & (31 << 6)) >= 16 << 6
7579 && (insn & (31 << 6)) < 24 << 6)))
7580 /* load and store indexed -> dform. */
7581 insn = (32 | ((insn >> 6) & 31)) << 26;
7582 else if ((insn & (31 << 1)) == 21 << 1
7583 && (insn & (0x1a << 6)) == 0)
7584 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7585 insn = (((58 | ((insn >> 6) & 4)) << 26)
7586 | ((insn >> 6) & 1));
7587 else if ((insn & (31 << 1)) == 21 << 1
7588 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
7589 /* lwax -> lwa. */
7590 insn = (58 << 26) | 2;
7591 else
7592 abort ();
7593 insn |= rtra;
7594 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb
AM		 7595 /* Was PPC64_TLS which sits on insn boundary, now
7596 PPC64_TPREL16_LO which is at insn+2. */
7597 rel->r_offset += 2;
0d4792f7
AM		 7598 r_type = R_PPC64_TPREL16_LO;
7599 if (toc_symndx != 0)
7600 {
7601 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
7602 /* We changed the symbol. Start over in order to
7603 get h, sym, sec etc. right. */
7604 rel--;
7605 continue;
7606 }
7607 else
7608 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7609 }
7610 break;
7611
411e1bfb
AM		 7612 case R_PPC64_GOT_TLSGD16_HI:
7613 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 7614 tls_gd = TLS_TPRELGD;
7615 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7616 goto tls_gdld_hi;
7617 break;
7618
411e1bfb
AM		 7619 case R_PPC64_GOT_TLSLD16_HI:
7620 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7621 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 7622 {
951fd09b
AM		 7623 tls_gdld_hi:
7624 if ((tls_mask & tls_gd) != 0)
7625 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7626 + R_PPC64_GOT_TPREL16_DS);
7627 else
411e1bfb 7628 {
951fd09b
AM		 7629 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7630 rel->r_offset -= 2;
7631 r_type = R_PPC64_NONE;
411e1bfb 7632 }
951fd09b 7633 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7634 }
7635 break;
7636
951fd09b
AM		 7637 case R_PPC64_GOT_TLSGD16:
7638 case R_PPC64_GOT_TLSGD16_LO:
7639 tls_gd = TLS_TPRELGD;
7640 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7641 goto tls_get_addr_check;
7642 break;
411e1bfb 7643
951fd09b
AM		 7644 case R_PPC64_GOT_TLSLD16:
7645 case R_PPC64_GOT_TLSLD16_LO:
7646 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7647 {
7648 tls_get_addr_check:
7649 if (rel + 1 < relend)
411e1bfb 7650 {
951fd09b
AM		 7651 enum elf_ppc64_reloc_type r_type2;
7652 unsigned long r_symndx2;
7653 struct elf_link_hash_entry *h2;
7654 bfd_vma insn1, insn2, insn3;
7655 bfd_vma offset;
7656
7657 /* The next instruction should be a call to
7658 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 7659 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM		 7660 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7661 if (r_symndx2 < symtab_hdr->sh_info
7662 || (r_type2 != R_PPC64_REL14
7663 && r_type2 != R_PPC64_REL14_BRTAKEN
7664 && r_type2 != R_PPC64_REL14_BRNTAKEN
7665 && r_type2 != R_PPC64_REL24))
7666 break;
7667
7668 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7669 while (h2->root.type == bfd_link_hash_indirect
7670 || h2->root.type == bfd_link_hash_warning)
7671 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
7672 if (h2 == NULL || h2 != htab->tls_get_addr)
7673 break;
7674
7675 /* OK, it checks out. Replace the call. */
7676 offset = rel[1].r_offset;
7677 insn1 = bfd_get_32 (output_bfd,
7678 contents + rel->r_offset - 2);
7679 insn3 = bfd_get_32 (output_bfd,
7680 contents + offset + 4);
7681 if ((tls_mask & tls_gd) != 0)
411e1bfb 7682 {
951fd09b
AM		 7683 /* IE */
7684 insn1 &= (1 << 26) - (1 << 2);
7685 insn1 |= 58 << 26; /* ld */
7686 insn2 = 0x7c636a14; /* add 3,3,13 */
7687 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
7688 if ((tls_mask & TLS_EXPLICIT) == 0)
7689 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7690 + R_PPC64_GOT_TPREL16_DS);
7691 else
7692 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
7693 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7694 }
7695 else
951fd09b
AM		 7696 {
7697 /* LE */
7698 insn1 = 0x3c6d0000; /* addis 3,13,0 */
7699 insn2 = 0x38630000; /* addi 3,3,0 */
7700 if (tls_gd == 0)
7701 {
7702 /* Was an LD reloc. */
7703 r_symndx = 0;
e1918d23
AM		 7704 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7705 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
951fd09b 7706 }
0d4792f7
AM		 7707 else if (toc_symndx != 0)
7708 r_symndx = toc_symndx;
951fd09b
AM		 7709 r_type = R_PPC64_TPREL16_HA;
7710 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7711 rel[1].r_info = ELF64_R_INFO (r_symndx,
7712 R_PPC64_TPREL16_LO);
7713 rel[1].r_offset += 2;
7714 }
7715 if (insn3 == NOP
7716 || insn3 == CROR_151515 || insn3 == CROR_313131)
7717 {
7718 insn3 = insn2;
7719 insn2 = NOP;
7720 rel[1].r_offset += 4;
7721 }
7722 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
7723 bfd_put_32 (output_bfd, insn2, contents + offset);
7724 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
0d4792f7 7725 if (tls_gd == 0 || toc_symndx != 0)
951fd09b 7726 {
0d4792f7
AM		 7727 /* We changed the symbol. Start over in order
7728 to get h, sym, sec etc. right. */
951fd09b
AM		 7729 rel--;
7730 continue;
7731 }
411e1bfb 7732 }
411e1bfb 7733 }
411e1bfb
AM		 7734 break;
7735
7736 case R_PPC64_DTPMOD64:
951fd09b
AM		 7737 if (rel + 1 < relend
7738 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
7739 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 7740 {
951fd09b
AM		 7741 if ((tls_mask & TLS_GD) == 0)
7742 {
7743 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
7744 if ((tls_mask & TLS_TPRELGD) != 0)
7745 r_type = R_PPC64_TPREL64;
7746 else
7747 {
4ce794b7 7748 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 7749 r_type = R_PPC64_NONE;
7750 }
7751 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7752 }
7753 }
7754 else
7755 {
7756 if ((tls_mask & TLS_LD) == 0)
411e1bfb 7757 {
4ce794b7 7758 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 7759 r_type = R_PPC64_NONE;
951fd09b 7760 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 7761 }
411e1bfb
AM		 7762 }
7763 break;
7764
7765 case R_PPC64_TPREL64:
951fd09b 7766 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 7767 {
7768 r_type = R_PPC64_NONE;
7769 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7770 }
7771 break;
7772 }
7773
7774 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 7775 insn = 0;
65f38f15 7776 switch (r_type)
5bd4f169
AM		 7777 {
7778 default:
65f38f15 7779 break;
5bd4f169 7780
65f38f15
AM		 7781 /* Branch taken prediction relocations. */
7782 case R_PPC64_ADDR14_BRTAKEN:
7783 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 7784 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7785 /* Fall thru. */
65f38f15 7786
86c76c7b 7787 /* Branch not taken prediction relocations. */
65f38f15
AM		 7788 case R_PPC64_ADDR14_BRNTAKEN:
7789 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 7790 insn |= bfd_get_32 (output_bfd,
7791 contents + rel->r_offset) & ~(0x01 << 21);
96e0dda4
AM		 7792 if (is_power4)
7793 {
7794 /* Set 'a' bit. This is 0b00010 in BO field for branch
7795 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7796 for branch on CTR insns (BO == 1a00t or 1a01t). */
7797 if ((insn & (0x14 << 21)) == (0x04 << 21))
7798 insn |= 0x02 << 21;
7799 else if ((insn & (0x14 << 21)) == (0x10 << 21))
7800 insn |= 0x08 << 21;
7801 else
7802 break;
7803 }
65f38f15 7804 else
96e0dda4 7805 {
411e1bfb 7806 from = (rel->r_offset
805fc799
AM		 7807 + input_section->output_offset
7808 + input_section->output_section->vma);
7809
96e0dda4 7810 /* Invert 'y' bit if not the default. */
411e1bfb 7811 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
96e0dda4
AM		 7812 insn ^= 0x01 << 21;
7813 }
86c76c7b 7814
4ce794b7 7815 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
65f38f15 7816 break;
5bd4f169 7817
65f38f15 7818 case R_PPC64_REL24:
ad8e1ba5
AM		 7819 /* Calls to functions with a different TOC, such as calls to
7820 shared objects, need to alter the TOC pointer. This is
7821 done using a linkage stub. A REL24 branching to these
7822 linkage stubs needs to be followed by a nop, as the nop
7823 will be replaced with an instruction to restore the TOC
7824 base pointer. */
7825 if (((h != NULL
7826 && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL
7827 && fdh->plt.plist != NULL)
7828 || ((fdh = h, sec) != NULL
7829 && sec->output_section != NULL
7830 && (htab->stub_group[sec->id].toc_off
7831 != htab->stub_group[input_section->id].toc_off)))
721956f4 7832 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 7833 rel, htab)) != NULL
7834 && (stub_entry->stub_type == ppc_stub_plt_call
7835 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
7836 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 7837 {
b34976b6 7838 bfd_boolean can_plt_call = 0;
721956f4 7839
411e1bfb 7840 if (rel->r_offset + 8 <= input_section->_cooked_size)
41bd81ab 7841 {
411e1bfb 7842 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
721956f4
AM		 7843 if (insn == NOP
7844 || insn == CROR_151515 || insn == CROR_313131)
41bd81ab 7845 {
4ce794b7 7846 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 7847 contents + rel->r_offset + 4);
721956f4 7848 can_plt_call = 1;
41bd81ab 7849 }
5bd4f169 7850 }
721956f4
AM		 7851
7852 if (!can_plt_call)
7853 {
ad8e1ba5
AM		 7854 if (stub_entry->stub_type == ppc_stub_plt_call)
7855 {
7856 /* If this is a plain branch rather than a branch
7857 and link, don't require a nop. */
7858 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
7859 if ((insn & 1) == 0)
7860 can_plt_call = 1;
7861 }
6ab189d5
AM		 7862 else if (h != NULL
7863 && strcmp (h->root.root.string,
7864 ".__libc_start_main") == 0)
7865 {
7866 /* Allow crt1 branch to go via a toc adjusting stub. */
7867 can_plt_call = 1;
7868 }
ad8e1ba5
AM		 7869 else
7870 {
7871 if (strcmp (input_section->output_section->name,
7872 ".init") == 0
7873 || strcmp (input_section->output_section->name,
7874 ".fini") == 0)
7875 (*_bfd_error_handler)
7876 (_("%s(%s+0x%lx): automatic multiple TOCs "
7877 "not supported using your crt files; "
7878 "recompile with -mminimal-toc or upgrade gcc"),
7879 bfd_archive_filename (input_bfd),
7880 input_section->name,
7881 (long) rel->r_offset);
7882 else
7883 (*_bfd_error_handler)
7884 (_("%s(%s+0x%lx): sibling call optimization to `%s' "
7885 "does not allow automatic multiple TOCs; "
7886 "recompile with -mminimal-toc or "
7887 "-fno-optimize-sibling-calls, "
7888 "or make `%s' extern"),
7889 bfd_archive_filename (input_bfd),
7890 input_section->name,
7891 (long) rel->r_offset,
7892 sym_name,
7893 sym_name);
7894 bfd_set_error (bfd_error_bad_value);
7895 ret = FALSE;
7896 }
721956f4
AM		 7897 }
7898
7899 if (can_plt_call)
7900 {
7901 relocation = (stub_entry->stub_offset
7902 + stub_entry->stub_sec->output_offset
7903 + stub_entry->stub_sec->output_section->vma);
ad8e1ba5
AM		 7904 if (stub_entry->stub_type == ppc_stub_plt_call)
7905 unresolved_reloc = FALSE;
721956f4 7906 }
5bd4f169 7907 }
e86ce104
AM		 7908
7909 if (h != NULL
7910 && h->root.type == bfd_link_hash_undefweak
721956f4 7911 && relocation == 0
411e1bfb 7912 && rel->r_addend == 0)
e86ce104 7913 {
721956f4
AM		 7914 /* Tweak calls to undefined weak functions to point at a
7915 blr. We can thus call a weak function without first
7916 checking whether the function is defined. We have a
7917 blr at the end of .sfpr. */
805fc799 7918 BFD_ASSERT (htab->sfpr->_raw_size != 0);
721956f4
AM		 7919 relocation = (htab->sfpr->_raw_size - 4
7920 + htab->sfpr->output_offset
7921 + htab->sfpr->output_section->vma);
411e1bfb 7922 from = (rel->r_offset
721956f4
AM		 7923 + input_section->output_offset
7924 + input_section->output_section->vma);
805fc799 7925
721956f4
AM		 7926 /* But let's not be silly about it. If the blr isn't in
7927 reach, just go to the next instruction. */
805fc799
AM		 7928 if (relocation - from + (1 << 25) >= (1 << 26)
7929 || htab->sfpr->_raw_size == 0)
721956f4 7930 relocation = from + 4;
e86ce104 7931 }
65f38f15
AM		 7932 break;
7933 }
5bd4f169 7934
65f38f15 7935 /* Set `addend'. */
411e1bfb
AM		 7936 tls_type = 0;
7937 addend = rel->r_addend;
65f38f15
AM		 7938 switch (r_type)
7939 {
7940 default:
7941 (*_bfd_error_handler)
7942 (_("%s: unknown relocation type %d for symbol %s"),
7943 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
5bd4f169 7944
65f38f15 7945 bfd_set_error (bfd_error_bad_value);
b34976b6 7946 ret = FALSE;
65f38f15 7947 continue;
5bd4f169 7948
65f38f15 7949 case R_PPC64_NONE:
411e1bfb 7950 case R_PPC64_TLS:
04c9666a
AM		 7951 case R_PPC64_GNU_VTINHERIT:
7952 case R_PPC64_GNU_VTENTRY:
65f38f15 7953 continue;
5bd4f169
AM		 7954
7955 /* GOT16 relocations. Like an ADDR16 using the symbol's
7956 address in the GOT as relocation value instead of the
411e1bfb 7957 symbol's value itself. Also, create a GOT entry for the
5bd4f169 7958 symbol and put the symbol value there. */
411e1bfb
AM		 7959 case R_PPC64_GOT_TLSGD16:
7960 case R_PPC64_GOT_TLSGD16_LO:
7961 case R_PPC64_GOT_TLSGD16_HI:
7962 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 7963 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 7964 goto dogot;
7965
7966 case R_PPC64_GOT_TLSLD16:
7967 case R_PPC64_GOT_TLSLD16_LO:
7968 case R_PPC64_GOT_TLSLD16_HI:
7969 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7970 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 7971 goto dogot;
7972
7973 case R_PPC64_GOT_TPREL16_DS:
7974 case R_PPC64_GOT_TPREL16_LO_DS:
7975 case R_PPC64_GOT_TPREL16_HI:
7976 case R_PPC64_GOT_TPREL16_HA:
7977 tls_type = TLS_TLS | TLS_TPREL;
7978 goto dogot;
7979
7980 case R_PPC64_GOT_DTPREL16_DS:
7981 case R_PPC64_GOT_DTPREL16_LO_DS:
7982 case R_PPC64_GOT_DTPREL16_HI:
7983 case R_PPC64_GOT_DTPREL16_HA:
7984 tls_type = TLS_TLS | TLS_DTPREL;
7985 goto dogot;
7986
65f38f15
AM		 7987 case R_PPC64_GOT16:
7988 case R_PPC64_GOT16_LO:
7989 case R_PPC64_GOT16_HI:
7990 case R_PPC64_GOT16_HA:
7991 case R_PPC64_GOT16_DS:
7992 case R_PPC64_GOT16_LO_DS:
411e1bfb 7993 dogot:
5bd4f169
AM		 7994 {
7995 /* Relocation is to the entry for this symbol in the global
7996 offset table. */
e717da7e 7997 asection *got;
d881513a 7998 bfd_vma *offp;
5bd4f169 7999 bfd_vma off;
d881513a 8000 unsigned long indx = 0;
65f38f15 8001
d881513a
AM		 8002 if (tls_type == (TLS_TLS | TLS_LD)
8003 && (h == NULL
8004 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
e717da7e 8005 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 8006 else
5bd4f169 8007 {
d881513a 8008 struct got_entry *ent;
5bd4f169 8009
d881513a
AM		 8010 if (h != NULL)
8011 {
8012 bfd_boolean dyn = htab->elf.dynamic_sections_created;
f4656909 8013 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
d881513a 8014 || (info->shared
586119b3 8015 && SYMBOL_REFERENCES_LOCAL (info, h)))
d881513a
AM		 8016 /* This is actually a static link, or it is a
8017 -Bsymbolic link and the symbol is defined
8018 locally, or the symbol was forced to be local
8019 because of a version file. */
8020 ;
8021 else
8022 {
8023 indx = h->dynindx;
8024 unresolved_reloc = FALSE;
8025 }
8026 ent = h->got.glist;
8027 }
411e1bfb 8028 else
5bd4f169 8029 {
d881513a
AM		 8030 if (local_got_ents == NULL)
8031 abort ();
8032 ent = local_got_ents[r_symndx];
5bd4f169 8033 }
d881513a
AM		 8034
8035 for (; ent != NULL; ent = ent->next)
8036 if (ent->addend == rel->r_addend
e717da7e 8037 && ent->owner == input_bfd
d881513a
AM		 8038 && ent->tls_type == tls_type)
8039 break;
8040 if (ent == NULL)
8041 abort ();
8042 offp = &ent->got.offset;
5bd4f169 8043 }
411e1bfb 8044
e717da7e
AM		 8045 got = ppc64_elf_tdata (input_bfd)->got;
8046 if (got == NULL)
8047 abort ();
8048
411e1bfb
AM		 8049 /* The offset must always be a multiple of 8. We use the
8050 least significant bit to record whether we have already
8051 processed this entry. */
d881513a 8052 off = *offp;
411e1bfb
AM		 8053 if ((off & 1) != 0)
8054 off &= ~1;
5bd4f169
AM		 8055 else
8056 {
411e1bfb
AM		 8057 /* Generate relocs for the dynamic linker, except in
8058 the case of TLSLD where we'll use one entry per
8059 module. */
e717da7e
AM		 8060 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
8061
d881513a 8062 *offp = off | 1;
4e795f50
AM		 8063 if ((info->shared || indx != 0)
8064 && (h == NULL
8065 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8066 || h->root.type != bfd_link_hash_undefweak))
5bd4f169 8067 {
e717da7e
AM		 8068 outrel.r_offset = (got->output_section->vma
8069 + got->output_offset
411e1bfb 8070 + off);
81407a69 8071 outrel.r_addend = rel->r_addend;
d881513a 8072 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 8073 {
411e1bfb 8074 outrel.r_addend = 0;
e515b051 8075 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 8076 if (tls_type == (TLS_TLS | TLS_GD))
8077 {
e717da7e
AM		 8078 loc = relgot->contents;
8079 loc += (relgot->reloc_count++
d881513a
AM		 8080 * sizeof (Elf64_External_Rela));
8081 bfd_elf64_swap_reloca_out (output_bfd,
8082 &outrel, loc);
e515b051 8083 outrel.r_offset += 8;
81407a69 8084 outrel.r_addend = rel->r_addend;
d881513a
AM		 8085 outrel.r_info
8086 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 8087 }
411e1bfb 8088 }
951fd09b 8089 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 8090 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 8091 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 8092 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
8093 else if (indx == 0)
81407a69
AM		 8094 {
8095 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
8096
8097 /* Write the .got section contents for the sake
8098 of prelink. */
e717da7e 8099 loc = got->contents + off;
23fbd6fa
JJ		 8100 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
8101 loc);
81407a69 8102 }
411e1bfb
AM		 8103 else
8104 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 8105
8106 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 8107 {
8108 outrel.r_addend += relocation;
8109 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 8110 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 8111 }
e717da7e
AM		 8112 loc = relgot->contents;
8113 loc += (relgot->reloc_count++
411e1bfb
AM		 8114 * sizeof (Elf64_External_Rela));
8115 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8116 }
8117
ad8e1ba5 8118 /* Init the .got section contents here if we're not
81407a69 8119 emitting a reloc. */
d881513a 8120 else
411e1bfb 8121 {
d881513a 8122 relocation += rel->r_addend;
7b609f53
AM		 8123 if (tls_type == (TLS_TLS | TLS_LD))
8124 relocation = 1;
8125 else if (tls_type != 0)
411e1bfb 8126 {
e1918d23 8127 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 8128 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 8129 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 8130
7b609f53
AM		 8131 if (tls_type == (TLS_TLS | TLS_GD))
8132 {
8133 bfd_put_64 (output_bfd, relocation,
e717da7e 8134 got->contents + off + 8);
7b609f53
AM		 8135 relocation = 1;
8136 }
411e1bfb 8137 }
7b609f53 8138
411e1bfb 8139 bfd_put_64 (output_bfd, relocation,
e717da7e 8140 got->contents + off);
5bd4f169
AM		 8141 }
8142 }
8143
65f38f15
AM		 8144 if (off >= (bfd_vma) -2)
8145 abort ();
8146
e717da7e 8147 relocation = got->output_offset + off;
65f38f15 8148
5bd4f169 8149 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 8150 addend = -TOC_BASE_OFF;
5bd4f169 8151 }
65f38f15
AM		 8152 break;
8153
8154 case R_PPC64_PLT16_HA:
8155 case R_PPC64_PLT16_HI:
8156 case R_PPC64_PLT16_LO:
8157 case R_PPC64_PLT32:
8158 case R_PPC64_PLT64:
8159 /* Relocation is to the entry for this symbol in the
8160 procedure linkage table. */
8161
8162 /* Resolve a PLT reloc against a local symbol directly,
8163 without using the procedure linkage table. */
8164 if (h == NULL)
8165 break;
8166
411e1bfb
AM		 8167 /* It's possible that we didn't make a PLT entry for this
8168 symbol. This happens when statically linking PIC code,
8169 or when using -Bsymbolic. Go find a match if there is a
8170 PLT entry. */
4ce794b7 8171 if (htab->plt != NULL)
65f38f15 8172 {
411e1bfb
AM		 8173 struct plt_entry *ent;
8174 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8175 if (ent->addend == rel->r_addend
8176 && ent->plt.offset != (bfd_vma) -1)
8177 {
4ce794b7
AM		 8178 relocation = (htab->plt->output_section->vma
8179 + htab->plt->output_offset
411e1bfb
AM		 8180 + ent->plt.offset);
8181 unresolved_reloc = FALSE;
8182 }
65f38f15 8183 }
65f38f15 8184 break;
5bd4f169 8185
0b13192e
AM		 8186 case R_PPC64_TOC:
8187 /* Relocation value is TOC base. */
8188 relocation = TOCstart;
8189 if (r_symndx == 0)
8190 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM		 8191 else if (unresolved_reloc)
8192 ;
8193 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM		 8194 relocation += htab->stub_group[sec->id].toc_off;
8195 else
8196 unresolved_reloc = TRUE;
8197 goto dodyn2;
8198
5bd4f169
AM		 8199 /* TOC16 relocs. We want the offset relative to the TOC base,
8200 which is the address of the start of the TOC plus 0x8000.
8201 The TOC consists of sections .got, .toc, .tocbss, and .plt,
8202 in this order. */
65f38f15
AM		 8203 case R_PPC64_TOC16:
8204 case R_PPC64_TOC16_LO:
8205 case R_PPC64_TOC16_HI:
8206 case R_PPC64_TOC16_DS:
8207 case R_PPC64_TOC16_LO_DS:
8208 case R_PPC64_TOC16_HA:
ad8e1ba5 8209 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 8210 break;
8211
8212 /* Relocate against the beginning of the section. */
65f38f15
AM		 8213 case R_PPC64_SECTOFF:
8214 case R_PPC64_SECTOFF_LO:
8215 case R_PPC64_SECTOFF_HI:
8216 case R_PPC64_SECTOFF_DS:
8217 case R_PPC64_SECTOFF_LO_DS:
8218 case R_PPC64_SECTOFF_HA:
4ce794b7 8219 if (sec != NULL)
65f38f15 8220 addend -= sec->output_section->vma;
5bd4f169
AM		 8221 break;
8222
721956f4
AM		 8223 case R_PPC64_REL14:
8224 case R_PPC64_REL14_BRNTAKEN:
8225 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 8226 case R_PPC64_REL24:
8227 break;
8228
411e1bfb
AM		 8229 case R_PPC64_TPREL16:
8230 case R_PPC64_TPREL16_LO:
8231 case R_PPC64_TPREL16_HI:
8232 case R_PPC64_TPREL16_HA:
8233 case R_PPC64_TPREL16_DS:
8234 case R_PPC64_TPREL16_LO_DS:
8235 case R_PPC64_TPREL16_HIGHER:
8236 case R_PPC64_TPREL16_HIGHERA:
8237 case R_PPC64_TPREL16_HIGHEST:
8238 case R_PPC64_TPREL16_HIGHESTA:
e1918d23 8239 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 8240 if (info->shared)
8241 /* The TPREL16 relocs shouldn't really be used in shared
8242 libs as they will result in DT_TEXTREL being set, but
8243 support them anyway. */
8244 goto dodyn;
8245 break;
8246
8247 case R_PPC64_DTPREL16:
8248 case R_PPC64_DTPREL16_LO:
8249 case R_PPC64_DTPREL16_HI:
8250 case R_PPC64_DTPREL16_HA:
8251 case R_PPC64_DTPREL16_DS:
8252 case R_PPC64_DTPREL16_LO_DS:
8253 case R_PPC64_DTPREL16_HIGHER:
8254 case R_PPC64_DTPREL16_HIGHERA:
8255 case R_PPC64_DTPREL16_HIGHEST:
8256 case R_PPC64_DTPREL16_HIGHESTA:
e1918d23 8257 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 8258 break;
8259
e515b051
AM		 8260 case R_PPC64_DTPMOD64:
8261 relocation = 1;
8262 addend = 0;
8263 goto dodyn;
8264
411e1bfb 8265 case R_PPC64_TPREL64:
e1918d23 8266 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 8267 goto dodyn;
8268
8269 case R_PPC64_DTPREL64:
e1918d23 8270 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 8271 /* Fall thru */
8272
65f38f15
AM		 8273 /* Relocations that may need to be propagated if this is a
8274 dynamic object. */
04c9666a 8275 case R_PPC64_REL30:
65f38f15
AM		 8276 case R_PPC64_REL32:
8277 case R_PPC64_REL64:
8278 case R_PPC64_ADDR14:
8279 case R_PPC64_ADDR14_BRNTAKEN:
8280 case R_PPC64_ADDR14_BRTAKEN:
8281 case R_PPC64_ADDR16:
8282 case R_PPC64_ADDR16_DS:
8283 case R_PPC64_ADDR16_HA:
8284 case R_PPC64_ADDR16_HI:
8285 case R_PPC64_ADDR16_HIGHER:
8286 case R_PPC64_ADDR16_HIGHERA:
8287 case R_PPC64_ADDR16_HIGHEST:
8288 case R_PPC64_ADDR16_HIGHESTA:
8289 case R_PPC64_ADDR16_LO:
8290 case R_PPC64_ADDR16_LO_DS:
8291 case R_PPC64_ADDR24:
65f38f15
AM		 8292 case R_PPC64_ADDR32:
8293 case R_PPC64_ADDR64:
8294 case R_PPC64_UADDR16:
8295 case R_PPC64_UADDR32:
8296 case R_PPC64_UADDR64:
ec338859
AM		 8297 /* r_symndx will be zero only for relocs against symbols
8298 from removed linkonce sections, or sections discarded by
8299 a linker script. */
411e1bfb 8300 dodyn:
5d1634d7
AM		 8301 if (r_symndx == 0)
8302 break;
8303 /* Fall thru. */
8304
0b13192e 8305 dodyn2:
5d1634d7 8306 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 8307 break;
8308
41bd81ab
AM		 8309 if (NO_OPD_RELOCS && is_opd)
8310 break;
8311
65f38f15 8312 if ((info->shared
4e795f50
AM		 8313 && (h == NULL
8314 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8315 || h->root.type != bfd_link_hash_undefweak)
411e1bfb 8316 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 8317 || !SYMBOL_CALLS_LOCAL (info, h)))
f4656909
AM		 8318 || (ELIMINATE_COPY_RELOCS
8319 && !info->shared
65f38f15
AM		 8320 && h != NULL
8321 && h->dynindx != -1
8322 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 8323 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8324 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
65f38f15
AM		 8325 {
8326 Elf_Internal_Rela outrel;
b34976b6 8327 bfd_boolean skip, relocate;
65f38f15 8328 asection *sreloc;
947216bf 8329 bfd_byte *loc;
1cf1f670 8330 bfd_vma out_off;
65f38f15
AM		 8331
8332 /* When generating a dynamic object, these relocations
8333 are copied into the output file to be resolved at run
8334 time. */
8335
b34976b6
AM		 8336 skip = FALSE;
8337 relocate = FALSE;
65f38f15 8338
1cf1f670
AM		 8339 out_off = _bfd_elf_section_offset (output_bfd, info,
8340 input_section, rel->r_offset);
8341 if (out_off == (bfd_vma) -1)
b34976b6 8342 skip = TRUE;
1cf1f670 8343 else if (out_off == (bfd_vma) -2)
b34976b6 8344 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 8345 out_off += (input_section->output_section->vma
8346 + input_section->output_offset);
8347 outrel.r_offset = out_off;
411e1bfb 8348 outrel.r_addend = rel->r_addend;
65f38f15 8349
1cf1f670
AM		 8350 /* Optimize unaligned reloc use. */
8351 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
8352 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
8353 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
8354 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
8355 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
8356 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
8357 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
8358 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
8359 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
8360
65f38f15 8361 if (skip)
0bb2d96a 8362 memset (&outrel, 0, sizeof outrel);
f6c52c13 8363 else if (!SYMBOL_REFERENCES_LOCAL (info, h)
0b13192e
AM		 8364 && !is_opd
8365 && r_type != R_PPC64_TOC)
0bb2d96a 8366 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
65f38f15
AM		 8367 else
8368 {
41bd81ab
AM		 8369 /* This symbol is local, or marked to become local,
8370 or this is an opd section reloc which must point
8371 at a local function. */
65f38f15 8372 outrel.r_addend += relocation;
e86ce104 8373 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 8374 {
3fad3c7c 8375 if (is_opd && h != NULL)
afbe61cf
AM		 8376 {
8377 /* Lie about opd entries. This case occurs
8378 when building shared libraries and we
8379 reference a function in another shared
3fad3c7c
AM		 8380 lib. The same thing happens for a weak
8381 definition in an application that's
8382 overridden by a strong definition in a
8383 shared lib. (I believe this is a generic
8384 bug in binutils handling of weak syms.)
8385 In these cases we won't use the opd
1e2f5b6e 8386 entry in this lib. */
b34976b6 8387 unresolved_reloc = FALSE;
afbe61cf 8388 }
65f38f15 8389 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 8390
8391 /* We need to relocate .opd contents for ld.so.
8392 Prelink also wants simple and consistent rules
8393 for relocs. This make all RELATIVE relocs have
8394 *r_offset equal to r_addend. */
8395 relocate = TRUE;
65f38f15
AM		 8396 }
8397 else
8398 {
8399 long indx = 0;
8400
41bd81ab 8401 if (bfd_is_abs_section (sec))
65f38f15
AM		 8402 ;
8403 else if (sec == NULL || sec->owner == NULL)
8404 {
8405 bfd_set_error (bfd_error_bad_value);
b34976b6 8406 return FALSE;
65f38f15
AM		 8407 }
8408 else
8409 {
8410 asection *osec;
8411
8412 osec = sec->output_section;
8413 indx = elf_section_data (osec)->dynindx;
8414
8415 /* We are turning this relocation into one
8416 against a section symbol, so subtract out
8417 the output section's address but not the
8418 offset of the input section in the output
8419 section. */
8420 outrel.r_addend -= osec->vma;
8421 }
8422
8423 outrel.r_info = ELF64_R_INFO (indx, r_type);
8424 }
8425 }
8426
8427 sreloc = elf_section_data (input_section)->sreloc;
8428 if (sreloc == NULL)
8429 abort ();
8430
947216bf
AM		 8431 loc = sreloc->contents;
8432 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 8433 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8434
8435 /* If this reloc is against an external symbol, it will
8436 be computed at runtime, so there's no need to do
81407a69
AM		 8437 anything now. However, for the sake of prelink ensure
8438 that the section contents are a known value. */
65f38f15 8439 if (! relocate)
81407a69
AM		 8440 {
8441 unresolved_reloc = FALSE;
8442 /* The value chosen here is quite arbitrary as ld.so
8443 ignores section contents except for the special
8444 case of .opd where the contents might be accessed
8445 before relocation. Choose zero, as that won't
8446 cause reloc overflow. */
8447 relocation = 0;
8448 addend = 0;
8449 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
8450 to improve backward compatibility with older
8451 versions of ld. */
8452 if (r_type == R_PPC64_ADDR64)
8453 addend = outrel.r_addend;
8454 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 8455 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 8456 addend = (input_section->output_section->vma
8457 + input_section->output_offset
8458 + rel->r_offset);
81407a69 8459 }
65f38f15 8460 }
5bd4f169
AM		 8461 break;
8462
65f38f15
AM		 8463 case R_PPC64_COPY:
8464 case R_PPC64_GLOB_DAT:
8465 case R_PPC64_JMP_SLOT:
8466 case R_PPC64_RELATIVE:
8467 /* We shouldn't ever see these dynamic relocs in relocatable
8468 files. */
ae9a127f 8469 /* Fall through. */
65f38f15
AM		 8470
8471 case R_PPC64_PLTGOT16:
8472 case R_PPC64_PLTGOT16_DS:
8473 case R_PPC64_PLTGOT16_HA:
8474 case R_PPC64_PLTGOT16_HI:
8475 case R_PPC64_PLTGOT16_LO:
8476 case R_PPC64_PLTGOT16_LO_DS:
8477 case R_PPC64_PLTREL32:
8478 case R_PPC64_PLTREL64:
8479 /* These ones haven't been implemented yet. */
8480
8481 (*_bfd_error_handler)
7b609f53 8482 (_("%s: relocation %s is not supported for symbol %s."),
65f38f15 8483 bfd_archive_filename (input_bfd),
4ce794b7 8484 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 8485
8486 bfd_set_error (bfd_error_invalid_operation);
b34976b6 8487 ret = FALSE;
5bd4f169 8488 continue;
65f38f15 8489 }
5bd4f169 8490
65f38f15
AM		 8491 /* Do any further special processing. */
8492 switch (r_type)
8493 {
8494 default:
8495 break;
8496
8497 case R_PPC64_ADDR16_HA:
8498 case R_PPC64_ADDR16_HIGHERA:
8499 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM		 8500 case R_PPC64_GOT16_HA:
8501 case R_PPC64_PLTGOT16_HA:
65f38f15
AM		 8502 case R_PPC64_PLT16_HA:
8503 case R_PPC64_TOC16_HA:
8504 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 8505 case R_PPC64_TPREL16_HA:
8506 case R_PPC64_DTPREL16_HA:
8507 case R_PPC64_GOT_TLSGD16_HA:
8508 case R_PPC64_GOT_TLSLD16_HA:
8509 case R_PPC64_GOT_TPREL16_HA:
8510 case R_PPC64_GOT_DTPREL16_HA:
8511 case R_PPC64_TPREL16_HIGHER:
8512 case R_PPC64_TPREL16_HIGHERA:
8513 case R_PPC64_TPREL16_HIGHEST:
8514 case R_PPC64_TPREL16_HIGHESTA:
8515 case R_PPC64_DTPREL16_HIGHER:
8516 case R_PPC64_DTPREL16_HIGHERA:
8517 case R_PPC64_DTPREL16_HIGHEST:
8518 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 8519 /* It's just possible that this symbol is a weak symbol
8520 that's not actually defined anywhere. In that case,
8521 'sec' would be NULL, and we should leave the symbol
8522 alone (it will be set to zero elsewhere in the link). */
8523 if (sec != NULL)
e515b051
AM		 8524 /* Add 0x10000 if sign bit in 0:15 is set.
8525 Bits 0:15 are not used. */
8526 addend += 0x8000;
65f38f15
AM		 8527 break;
8528
8529 case R_PPC64_ADDR16_DS:
8530 case R_PPC64_ADDR16_LO_DS:
8531 case R_PPC64_GOT16_DS:
8532 case R_PPC64_GOT16_LO_DS:
8533 case R_PPC64_PLT16_LO_DS:
8534 case R_PPC64_SECTOFF_DS:
8535 case R_PPC64_SECTOFF_LO_DS:
8536 case R_PPC64_TOC16_DS:
8537 case R_PPC64_TOC16_LO_DS:
8538 case R_PPC64_PLTGOT16_DS:
8539 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 8540 case R_PPC64_GOT_TPREL16_DS:
8541 case R_PPC64_GOT_TPREL16_LO_DS:
8542 case R_PPC64_GOT_DTPREL16_DS:
8543 case R_PPC64_GOT_DTPREL16_LO_DS:
8544 case R_PPC64_TPREL16_DS:
8545 case R_PPC64_TPREL16_LO_DS:
8546 case R_PPC64_DTPREL16_DS:
8547 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 8548 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
8549 mask = 3;
8550 /* If this reloc is against an lq insn, then the value must be
8551 a multiple of 16. This is somewhat of a hack, but the
8552 "correct" way to do this by defining _DQ forms of all the
8553 _DS relocs bloats all reloc switches in this file. It
8554 doesn't seem to make much sense to use any of these relocs
8555 in data, so testing the insn should be safe. */
494dac0c 8556 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 8557 mask = 15;
8558 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 8559 {
8560 (*_bfd_error_handler)
adadcc0c 8561 (_("%s: error: relocation %s not a multiple of %d"),
65f38f15 8562 bfd_archive_filename (input_bfd),
4ce794b7 8563 ppc64_elf_howto_table[r_type]->name,
adadcc0c 8564 mask + 1);
65f38f15 8565 bfd_set_error (bfd_error_bad_value);
b34976b6 8566 ret = FALSE;
65f38f15
AM		 8567 continue;
8568 }
8569 break;
721956f4
AM		 8570
8571 case R_PPC64_REL14:
8572 case R_PPC64_REL14_BRNTAKEN:
8573 case R_PPC64_REL14_BRTAKEN:
8574 max_br_offset = 1 << 15;
8575 goto branch_check;
8576
8577 case R_PPC64_REL24:
8578 max_br_offset = 1 << 25;
8579
8580 branch_check:
ad8e1ba5
AM		 8581 /* If the branch is out of reach or the TOC register needs
8582 adjusting, then redirect the call to the local stub for
8583 this function. */
411e1bfb 8584 from = (rel->r_offset
721956f4
AM		 8585 + input_section->output_offset
8586 + input_section->output_section->vma);
ad8e1ba5
AM		 8587 if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset
8588 || (sec != NULL
8589 && sec->output_section != NULL
8f3bab57 8590 && sec->id <= htab->top_id
ad8e1ba5
AM		 8591 && (htab->stub_group[sec->id].toc_off
8592 != htab->stub_group[input_section->id].toc_off)))
721956f4
AM		 8593 && (stub_entry = ppc_get_stub_entry (input_section, sec, h,
8594 rel, htab)) != NULL)
8595 {
8596 /* Munge up the value and addend so that we call the stub
8597 rather than the procedure directly. */
8598 relocation = (stub_entry->stub_offset
8599 + stub_entry->stub_sec->output_offset
8600 + stub_entry->stub_sec->output_section->vma);
8601 addend = 0;
8602 }
8603 break;
5bd4f169
AM		 8604 }
8605
239e1f3a
AM		 8606 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8607 because such sections are not SEC_ALLOC and thus ld.so will
8608 not process them. */
65f38f15 8609 if (unresolved_reloc
239e1f3a 8610 && !((input_section->flags & SEC_DEBUGGING) != 0
65f38f15 8611 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
9c07fe7c
AM		 8612 {
8613 (*_bfd_error_handler)
7b609f53 8614 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
9c07fe7c
AM		 8615 bfd_archive_filename (input_bfd),
8616 bfd_get_section_name (input_bfd, input_section),
8617 (long) rel->r_offset,
7b609f53 8618 ppc64_elf_howto_table[(int) r_type]->name,
9c07fe7c 8619 h->root.root.string);
b34976b6 8620 ret = FALSE;
9c07fe7c 8621 }
5bd4f169 8622
65f38f15 8623 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 8624 input_bfd,
8625 input_section,
8626 contents,
411e1bfb 8627 rel->r_offset,
5bd4f169
AM		 8628 relocation,
8629 addend);
8630
ef60b7ff 8631 if (r != bfd_reloc_ok)
5bd4f169 8632 {
cd27b276
AM		 8633 if (sym_name == NULL)
8634 sym_name = "(null)";
8635 if (r == bfd_reloc_overflow)
5bd4f169 8636 {
cd27b276
AM		 8637 if (warned)
8638 continue;
8639 if (h != NULL
8640 && h->root.type == bfd_link_hash_undefweak
4ce794b7 8641 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 8642 {
8643 /* Assume this is a call protected by other code that
8644 detects the symbol is undefined. If this is the case,
8645 we can safely ignore the overflow. If not, the
8646 program is hosed anyway, and a little warning isn't
8647 going to help. */
8648
8649 continue;
8650 }
8651
ef60b7ff 8652 if (!((*info->callbacks->reloc_overflow)
4ce794b7 8653 (info, sym_name, ppc64_elf_howto_table[r_type]->name,
411e1bfb 8654 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 8655 return FALSE;
ef60b7ff
AM		 8656 }
8657 else
8658 {
8659 (*_bfd_error_handler)
7b609f53 8660 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
ef60b7ff
AM		 8661 bfd_archive_filename (input_bfd),
8662 bfd_get_section_name (input_bfd, input_section),
7b609f53 8663 (long) rel->r_offset,
4ce794b7 8664 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 8665 sym_name,
8666 (int) r);
b34976b6 8667 ret = FALSE;
ef60b7ff 8668 }
5bd4f169 8669 }
5bd4f169
AM		 8670 }
8671
5bd4f169
AM		 8672 return ret;
8673}
8674
8675/* Finish up dynamic symbol handling. We set the contents of various
8676 dynamic sections here. */
8677
b34976b6 8678static bfd_boolean
4ce794b7
AM		 8679ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
8680 struct bfd_link_info *info,
8681 struct elf_link_hash_entry *h,
8682 Elf_Internal_Sym *sym)
5bd4f169 8683{
65f38f15 8684 struct ppc_link_hash_table *htab;
5bd4f169
AM		 8685 bfd *dynobj;
8686
65f38f15
AM		 8687 htab = ppc_hash_table (info);
8688 dynobj = htab->elf.dynobj;
5bd4f169 8689
411e1bfb 8690 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
5bd4f169 8691 {
411e1bfb 8692 struct plt_entry *ent;
65f38f15 8693 Elf_Internal_Rela rela;
947216bf 8694 bfd_byte *loc;
5bd4f169 8695
411e1bfb
AM		 8696 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8697 if (ent->plt.offset != (bfd_vma) -1)
8698 {
8699 /* This symbol has an entry in the procedure linkage
8700 table. Set it up. */
5bd4f169 8701
4ce794b7
AM		 8702 if (htab->plt == NULL
8703 || htab->relplt == NULL
8704 || htab->glink == NULL)
411e1bfb 8705 abort ();
5bd4f169 8706
411e1bfb
AM		 8707 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8708 fill in the PLT entry. */
4ce794b7
AM		 8709 rela.r_offset = (htab->plt->output_section->vma
8710 + htab->plt->output_offset
411e1bfb
AM		 8711 + ent->plt.offset);
8712 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
8713 rela.r_addend = ent->addend;
5bd4f169 8714
4ce794b7 8715 loc = htab->relplt->contents;
411e1bfb
AM		 8716 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
8717 * sizeof (Elf64_External_Rela));
8718 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8719 }
5bd4f169
AM		 8720 }
8721
8722 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
8723 {
5bd4f169 8724 Elf_Internal_Rela rela;
947216bf 8725 bfd_byte *loc;
5bd4f169 8726
65f38f15 8727 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 8728
65f38f15
AM		 8729 if (h->dynindx == -1
8730 || (h->root.type != bfd_link_hash_defined
8731 && h->root.type != bfd_link_hash_defweak)
4ce794b7 8732 || htab->relbss == NULL)
65f38f15 8733 abort ();
5bd4f169
AM		 8734
8735 rela.r_offset = (h->root.u.def.value
8736 + h->root.u.def.section->output_section->vma
8737 + h->root.u.def.section->output_offset);
8738 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
8739 rela.r_addend = 0;
4ce794b7
AM		 8740 loc = htab->relbss->contents;
8741 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 8742 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 8743 }
8744
5bd4f169
AM		 8745 /* Mark some specially defined symbols as absolute. */
8746 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
8747 sym->st_shndx = SHN_ABS;
8748
b34976b6 8749 return TRUE;
5bd4f169
AM		 8750}
8751
65f38f15
AM		 8752/* Used to decide how to sort relocs in an optimal manner for the
8753 dynamic linker, before writing them out. */
8754
8755static enum elf_reloc_type_class
4ce794b7 8756ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 8757{
04c9666a 8758 enum elf_ppc64_reloc_type r_type;
a33d1f77 8759
4ce794b7 8760 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 8761 switch (r_type)
65f38f15
AM		 8762 {
8763 case R_PPC64_RELATIVE:
8764 return reloc_class_relative;
8765 case R_PPC64_JMP_SLOT:
8766 return reloc_class_plt;
8767 case R_PPC64_COPY:
8768 return reloc_class_copy;
8769 default:
8770 return reloc_class_normal;
8771 }
8772}
8773
5bd4f169
AM		 8774/* Finish up the dynamic sections. */
8775
b34976b6 8776static bfd_boolean
4ce794b7
AM		 8777ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
8778 struct bfd_link_info *info)
5bd4f169 8779{
65f38f15
AM		 8780 struct ppc_link_hash_table *htab;
8781 bfd *dynobj;
5bd4f169 8782 asection *sdyn;
5bd4f169 8783
65f38f15
AM		 8784 htab = ppc_hash_table (info);
8785 dynobj = htab->elf.dynobj;
5bd4f169
AM		 8786 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8787
65f38f15 8788 if (htab->elf.dynamic_sections_created)
5bd4f169 8789 {
5bd4f169
AM		 8790 Elf64_External_Dyn *dyncon, *dynconend;
8791
4ce794b7 8792 if (sdyn == NULL || htab->got == NULL)
65f38f15 8793 abort ();
5bd4f169
AM		 8794
8795 dyncon = (Elf64_External_Dyn *) sdyn->contents;
8796 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
8797 for (; dyncon < dynconend; dyncon++)
8798 {
8799 Elf_Internal_Dyn dyn;
19397422 8800 asection *s;
5bd4f169
AM		 8801
8802 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
8803
8804 switch (dyn.d_tag)
8805 {
65f38f15
AM		 8806 default:
8807 continue;
5bd4f169 8808
5d1634d7 8809 case DT_PPC64_GLINK:
4ce794b7 8810 s = htab->glink;
6348e046 8811 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 8812 /* We stupidly defined DT_PPC64_GLINK to be the start
8813 of glink rather than the first entry point, which is
8814 what ld.so needs, and now have a bigger stub to
8815 support automatic multiple TOCs. */
8816 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 8817 break;
8818
19397422
AM		 8819 case DT_PPC64_OPD:
8820 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 8821 if (s == NULL)
8822 continue;
8823 dyn.d_un.d_ptr = s->vma;
19397422
AM		 8824 break;
8825
8826 case DT_PPC64_OPDSZ:
8827 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 8828 if (s == NULL)
8829 continue;
8830 dyn.d_un.d_val = s->_raw_size;
19397422
AM		 8831 break;
8832
65f38f15 8833 case DT_PLTGOT:
4ce794b7 8834 s = htab->plt;
6348e046 8835 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 8836 break;
8837
8838 case DT_JMPREL:
4ce794b7 8839 s = htab->relplt;
6348e046 8840 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 8841 break;
5bd4f169 8842
65f38f15 8843 case DT_PLTRELSZ:
4ce794b7 8844 dyn.d_un.d_val = htab->relplt->_raw_size;
5d1634d7
AM		 8845 break;
8846
8847 case DT_RELASZ:
8848 /* Don't count procedure linkage table relocs in the
8849 overall reloc count. */
4ce794b7 8850 s = htab->relplt;
6348e046
AM		 8851 if (s == NULL)
8852 continue;
8853 dyn.d_un.d_val -= s->_raw_size;
8854 break;
8855
8856 case DT_RELA:
8857 /* We may not be using the standard ELF linker script.
8858 If .rela.plt is the first .rela section, we adjust
8859 DT_RELA to not include it. */
4ce794b7 8860 s = htab->relplt;
6348e046
AM		 8861 if (s == NULL)
8862 continue;
8863 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
8864 continue;
8865 dyn.d_un.d_ptr += s->_raw_size;
65f38f15 8866 break;
5bd4f169 8867 }
5bd4f169 8868
65f38f15 8869 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 8870 }
5bd4f169
AM		 8871 }
8872
4ce794b7 8873 if (htab->got != NULL && htab->got->_raw_size != 0)
5d1634d7
AM		 8874 {
8875 /* Fill in the first entry in the global offset table.
8876 We use it to hold the link-time TOCbase. */
8877 bfd_put_64 (output_bfd,
60ee0d4a 8878 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 8879 htab->got->contents);
5d1634d7
AM		 8880
8881 /* Set .got entry size. */
4ce794b7 8882 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 8883 }
8884
4ce794b7 8885 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5d1634d7
AM		 8886 {
8887 /* Set .plt entry size. */
4ce794b7 8888 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 8889 = PLT_ENTRY_SIZE;
8890 }
8891
e717da7e
AM		 8892 /* We need to handle writing out multiple GOT sections ourselves,
8893 since we didn't add them to DYNOBJ. */
8894 while ((dynobj = dynobj->link_next) != NULL)
8895 {
8896 asection *s;
8897 s = ppc64_elf_tdata (dynobj)->got;
8898 if (s != NULL
8899 && s->_raw_size != 0
8900 && s->output_section != bfd_abs_section_ptr
8901 && !bfd_set_section_contents (output_bfd, s->output_section,
8902 s->contents, s->output_offset,
8903 s->_raw_size))
8904 return FALSE;
8905 s = ppc64_elf_tdata (dynobj)->relgot;
8906 if (s != NULL
8907 && s->_raw_size != 0
8908 && s->output_section != bfd_abs_section_ptr
8909 && !bfd_set_section_contents (output_bfd, s->output_section,
8910 s->contents, s->output_offset,
8911 s->_raw_size))
8912 return FALSE;
8913 }
f6c52c13 8914
b34976b6 8915 return TRUE;
5bd4f169
AM		 8916}
8917
5bd4f169 8918#include "elf64-target.h"
GDB Binutils - Deliverables
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