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2005-10-25 H.J. Lu <hongjiu.lu@intel.com>
[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
CommitLineData
5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
3eb128b2 2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005
b2a8e766 3 Free Software Foundation, Inc.
5bd4f169
AM		 4 Written by Linus Nordberg, Swox AB <info@swox.com>,
5 based on elf32-ppc.c by Ian Lance Taylor.
d37c89e5 6 Largely rewritten by Alan Modra <amodra@bigpond.net.au>
5bd4f169 7
ae9a127f 8 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 9
ae9a127f
NC		 10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
5bd4f169 14
ae9a127f
NC		 15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
5bd4f169 19
4ce794b7
AM		 20 You should have received a copy of the GNU General Public License along
21 with this program; if not, write to the Free Software Foundation, Inc.,
3e110533 22 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
5bd4f169 23
4ce794b7
AM		 24/* The 64-bit PowerPC ELF ABI may be found at
25 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
26 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
5bd4f169
AM		 27
28#include "bfd.h"
29#include "sysdep.h"
30#include "bfdlink.h"
31#include "libbfd.h"
32#include "elf-bfd.h"
04c9666a 33#include "elf/ppc64.h"
5d1634d7 34#include "elf64-ppc.h"
5bd4f169 35
805fc799 36static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
2441e016
AM		 38static bfd_reloc_status_type ppc64_elf_branch_reloc
39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 40static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 42static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 44static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 46static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 48static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 50static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 52static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 53 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
2441e016
AM		 54static bfd_vma opd_entry_value
55 (asection *, bfd_vma, asection **, bfd_vma *);
5bd4f169 56
ad8e1ba5
AM		 57#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
58#define TARGET_LITTLE_NAME "elf64-powerpcle"
59#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
60#define TARGET_BIG_NAME "elf64-powerpc"
61#define ELF_ARCH bfd_arch_powerpc
62#define ELF_MACHINE_CODE EM_PPC64
63#define ELF_MAXPAGESIZE 0x10000
64#define elf_info_to_howto ppc64_elf_info_to_howto
65
66#define elf_backend_want_got_sym 0
67#define elf_backend_want_plt_sym 0
68#define elf_backend_plt_alignment 3
69#define elf_backend_plt_not_loaded 1
ad8e1ba5 70#define elf_backend_got_header_size 8
ad8e1ba5
AM		 71#define elf_backend_can_gc_sections 1
72#define elf_backend_can_refcount 1
73#define elf_backend_rela_normal 1
74
e717da7e 75#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5
AM		 76#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
77#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
78#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
79#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
80#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
90e3cdf2 81#define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab
ad8e1ba5
AM		 82
83#define elf_backend_object_p ppc64_elf_object_p
d37c89e5
AM		 84#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
85#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
ad8e1ba5
AM		 86#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
87#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
555cd476 88#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
8387904d
AM		 89#define elf_backend_check_directives ppc64_elf_check_directives
90#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
ad8e1ba5
AM		 91#define elf_backend_check_relocs ppc64_elf_check_relocs
92#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
93#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
94#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
95#define elf_backend_hide_symbol ppc64_elf_hide_symbol
96#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
97#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
60124e18 98#define elf_backend_action_discarded ppc64_elf_action_discarded
ad8e1ba5
AM		 99#define elf_backend_relocate_section ppc64_elf_relocate_section
100#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
101#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
102#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
754021d0 103#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
29ef7005 104#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 105
5bd4f169
AM		 106/* The name of the dynamic interpreter. This is put in the .interp
107 section. */
108#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
109
110/* The size in bytes of an entry in the procedure linkage table. */
111#define PLT_ENTRY_SIZE 24
112
113/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 114#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM		 115
116/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 117#define TOC_BASE_OFF 0x8000
118
119/* Offset of tp and dtp pointers from start of TLS block. */
120#define TP_OFFSET 0x7000
121#define DTP_OFFSET 0x8000
5bd4f169 122
ad8e1ba5
AM		 123/* .plt call stub instructions. The normal stub is like this, but
124 sometimes the .plt entry crosses a 64k boundary and we need to
125 insert an addis to adjust r12. */
126#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM		 127#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
128#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
129#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
130#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
131#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
132 /* ld %r11,xxx+16@l(%r12) */
133#define BCTR 0x4e800420 /* bctr */
134
5d1634d7 135
ad8e1ba5
AM		 136#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
137#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
138
139#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
140
141/* glink call stub instructions. We enter with the index in R0, and the
142 address of glink entry in CTR. From that, we can calculate PLT0. */
143#define GLINK_CALL_STUB_SIZE (16*4)
144#define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
145#define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
146#define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
147#define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
148#define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
149#define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
150#define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
151 /* sub %r12,%r12,%r11 */
152#define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
153#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
154 /* ld %r11,xxx@l(%r12) */
155#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
156 /* ld %r2,8(%r12) */
157 /* mtctr %r11 */
158 /* ld %r11,16(%r12) */
159 /* bctr */
5d1634d7
AM		 160
161/* Pad with this. */
162#define NOP 0x60000000
163
721956f4
AM		 164/* Some other nops. */
165#define CROR_151515 0x4def7b82
166#define CROR_313131 0x4ffffb82
167
cedb70c5 168/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 169#define LI_R0_0 0x38000000 /* li %r0,0 */
170#define B_DOT 0x48000000 /* b . */
171
172/* After that, we need two instructions to load the index, followed by
173 a branch. */
174#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 175#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 176
deb0e272
AM		 177/* Instructions used by the save and restore reg functions. */
178#define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */
179#define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */
180#define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */
181#define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */
82bd7b59
AM		 182#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
183#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
deb0e272
AM		 184#define LI_R12_0 0x39800000 /* li %r12,0 */
185#define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */
186#define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */
187#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
82bd7b59
AM		 188#define BLR 0x4e800020 /* blr */
189
41bd81ab
AM		 190/* Since .opd is an array of descriptors and each entry will end up
191 with identical R_PPC64_RELATIVE relocs, there is really no need to
192 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 193 relocate .opd without reloc entries. */
41bd81ab
AM		 194#ifndef NO_OPD_RELOCS
195#define NO_OPD_RELOCS 0
196#endif
5bd4f169 197\f
f5e87a1d 198#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 199
5bd4f169 200/* Relocation HOWTO's. */
04c9666a 201static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 202
203static reloc_howto_type ppc64_elf_howto_raw[] = {
204 /* This reloc does nothing. */
205 HOWTO (R_PPC64_NONE, /* type */
206 0, /* rightshift */
411e1bfb
AM		 207 2, /* size (0 = byte, 1 = short, 2 = long) */
208 32, /* bitsize */
b34976b6 209 FALSE, /* pc_relative */
5bd4f169 210 0, /* bitpos */
f5e87a1d 211 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 212 bfd_elf_generic_reloc, /* special_function */
213 "R_PPC64_NONE", /* name */
b34976b6 214 FALSE, /* partial_inplace */
d006db6c 215 0, /* src_mask */
5bd4f169 216 0, /* dst_mask */
b34976b6 217 FALSE), /* pcrel_offset */
5bd4f169
AM		 218
219 /* A standard 32 bit relocation. */
220 HOWTO (R_PPC64_ADDR32, /* type */
221 0, /* rightshift */
222 2, /* size (0 = byte, 1 = short, 2 = long) */
223 32, /* bitsize */
b34976b6 224 FALSE, /* pc_relative */
5bd4f169
AM		 225 0, /* bitpos */
226 complain_overflow_bitfield, /* complain_on_overflow */
227 bfd_elf_generic_reloc, /* special_function */
228 "R_PPC64_ADDR32", /* name */
b34976b6 229 FALSE, /* partial_inplace */
5bd4f169
AM		 230 0, /* src_mask */
231 0xffffffff, /* dst_mask */
b34976b6 232 FALSE), /* pcrel_offset */
5bd4f169
AM		 233
234 /* An absolute 26 bit branch; the lower two bits must be zero.
235 FIXME: we don't check that, we just clear them. */
236 HOWTO (R_PPC64_ADDR24, /* type */
237 0, /* rightshift */
238 2, /* size (0 = byte, 1 = short, 2 = long) */
239 26, /* bitsize */
b34976b6 240 FALSE, /* pc_relative */
5bd4f169
AM		 241 0, /* bitpos */
242 complain_overflow_bitfield, /* complain_on_overflow */
243 bfd_elf_generic_reloc, /* special_function */
244 "R_PPC64_ADDR24", /* name */
b34976b6 245 FALSE, /* partial_inplace */
d006db6c 246 0, /* src_mask */
f5e87a1d 247 0x03fffffc, /* dst_mask */
b34976b6 248 FALSE), /* pcrel_offset */
5bd4f169
AM		 249
250 /* A standard 16 bit relocation. */
251 HOWTO (R_PPC64_ADDR16, /* type */
252 0, /* rightshift */
253 1, /* size (0 = byte, 1 = short, 2 = long) */
254 16, /* bitsize */
b34976b6 255 FALSE, /* pc_relative */
5bd4f169
AM		 256 0, /* bitpos */
257 complain_overflow_bitfield, /* complain_on_overflow */
258 bfd_elf_generic_reloc, /* special_function */
259 "R_PPC64_ADDR16", /* name */
b34976b6 260 FALSE, /* partial_inplace */
5bd4f169
AM		 261 0, /* src_mask */
262 0xffff, /* dst_mask */
b34976b6 263 FALSE), /* pcrel_offset */
5bd4f169
AM		 264
265 /* A 16 bit relocation without overflow. */
266 HOWTO (R_PPC64_ADDR16_LO, /* type */
267 0, /* rightshift */
268 1, /* size (0 = byte, 1 = short, 2 = long) */
269 16, /* bitsize */
b34976b6 270 FALSE, /* pc_relative */
5bd4f169
AM		 271 0, /* bitpos */
272 complain_overflow_dont,/* complain_on_overflow */
273 bfd_elf_generic_reloc, /* special_function */
274 "R_PPC64_ADDR16_LO", /* name */
b34976b6 275 FALSE, /* partial_inplace */
5bd4f169
AM		 276 0, /* src_mask */
277 0xffff, /* dst_mask */
b34976b6 278 FALSE), /* pcrel_offset */
5bd4f169
AM		 279
280 /* Bits 16-31 of an address. */
281 HOWTO (R_PPC64_ADDR16_HI, /* type */
282 16, /* rightshift */
283 1, /* size (0 = byte, 1 = short, 2 = long) */
284 16, /* bitsize */
b34976b6 285 FALSE, /* pc_relative */
5bd4f169
AM		 286 0, /* bitpos */
287 complain_overflow_dont, /* complain_on_overflow */
288 bfd_elf_generic_reloc, /* special_function */
289 "R_PPC64_ADDR16_HI", /* name */
b34976b6 290 FALSE, /* partial_inplace */
5bd4f169
AM		 291 0, /* src_mask */
292 0xffff, /* dst_mask */
b34976b6 293 FALSE), /* pcrel_offset */
5bd4f169
AM		 294
295 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
296 bits, treated as a signed number, is negative. */
297 HOWTO (R_PPC64_ADDR16_HA, /* type */
298 16, /* rightshift */
299 1, /* size (0 = byte, 1 = short, 2 = long) */
300 16, /* bitsize */
b34976b6 301 FALSE, /* pc_relative */
5bd4f169
AM		 302 0, /* bitpos */
303 complain_overflow_dont, /* complain_on_overflow */
805fc799 304 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 305 "R_PPC64_ADDR16_HA", /* name */
b34976b6 306 FALSE, /* partial_inplace */
5bd4f169
AM		 307 0, /* src_mask */
308 0xffff, /* dst_mask */
b34976b6 309 FALSE), /* pcrel_offset */
5bd4f169
AM		 310
311 /* An absolute 16 bit branch; the lower two bits must be zero.
312 FIXME: we don't check that, we just clear them. */
313 HOWTO (R_PPC64_ADDR14, /* 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 */
2441e016 320 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 321 "R_PPC64_ADDR14", /* 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 expected to be taken. The lower two
329 bits must be zero. */
330 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* 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_BRTAKEN",/* 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 /* An absolute 16 bit branch, for which bit 10 should be set to
345 indicate that the branch is not expected to be taken. The lower
346 two bits must be zero. */
347 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
348 0, /* rightshift */
349 2, /* size (0 = byte, 1 = short, 2 = long) */
350 16, /* bitsize */
b34976b6 351 FALSE, /* pc_relative */
5bd4f169
AM		 352 0, /* bitpos */
353 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 354 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 355 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 356 FALSE, /* partial_inplace */
d006db6c 357 0, /* src_mask */
f5e87a1d 358 0x0000fffc, /* dst_mask */
b34976b6 359 FALSE), /* pcrel_offset */
5bd4f169
AM		 360
361 /* A relative 26 bit branch; the lower two bits must be zero. */
362 HOWTO (R_PPC64_REL24, /* type */
363 0, /* rightshift */
364 2, /* size (0 = byte, 1 = short, 2 = long) */
365 26, /* bitsize */
b34976b6 366 TRUE, /* pc_relative */
5bd4f169
AM		 367 0, /* bitpos */
368 complain_overflow_signed, /* complain_on_overflow */
2441e016 369 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 370 "R_PPC64_REL24", /* name */
b34976b6 371 FALSE, /* partial_inplace */
d006db6c 372 0, /* src_mask */
f5e87a1d 373 0x03fffffc, /* dst_mask */
b34976b6 374 TRUE), /* pcrel_offset */
5bd4f169
AM		 375
376 /* A relative 16 bit branch; the lower two bits must be zero. */
377 HOWTO (R_PPC64_REL14, /* 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 */
2441e016 384 ppc64_elf_branch_reloc, /* special_function */
5bd4f169 385 "R_PPC64_REL14", /* 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 expected to be taken. The lower two bits must be
393 zero. */
394 HOWTO (R_PPC64_REL14_BRTAKEN, /* 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_BRTAKEN", /* 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 /* A relative 16 bit branch. Bit 10 should be set to indicate that
409 the branch is not expected to be taken. The lower two bits must
410 be zero. */
411 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
412 0, /* rightshift */
413 2, /* size (0 = byte, 1 = short, 2 = long) */
414 16, /* bitsize */
b34976b6 415 TRUE, /* pc_relative */
5bd4f169
AM		 416 0, /* bitpos */
417 complain_overflow_signed, /* complain_on_overflow */
805fc799 418 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 419 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 420 FALSE, /* partial_inplace */
d006db6c 421 0, /* src_mask */
f5e87a1d 422 0x0000fffc, /* dst_mask */
b34976b6 423 TRUE), /* pcrel_offset */
5bd4f169
AM		 424
425 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
426 symbol. */
427 HOWTO (R_PPC64_GOT16, /* type */
428 0, /* rightshift */
429 1, /* size (0 = byte, 1 = short, 2 = long) */
430 16, /* bitsize */
b34976b6 431 FALSE, /* pc_relative */
5bd4f169
AM		 432 0, /* bitpos */
433 complain_overflow_signed, /* complain_on_overflow */
805fc799 434 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 435 "R_PPC64_GOT16", /* name */
b34976b6 436 FALSE, /* partial_inplace */
5bd4f169
AM		 437 0, /* src_mask */
438 0xffff, /* dst_mask */
b34976b6 439 FALSE), /* pcrel_offset */
5bd4f169
AM		 440
441 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
442 the symbol. */
443 HOWTO (R_PPC64_GOT16_LO, /* type */
444 0, /* rightshift */
445 1, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
b34976b6 447 FALSE, /* pc_relative */
5bd4f169
AM		 448 0, /* bitpos */
449 complain_overflow_dont, /* complain_on_overflow */
805fc799 450 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 451 "R_PPC64_GOT16_LO", /* name */
b34976b6 452 FALSE, /* partial_inplace */
5bd4f169
AM		 453 0, /* src_mask */
454 0xffff, /* dst_mask */
b34976b6 455 FALSE), /* pcrel_offset */
5bd4f169
AM		 456
457 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
458 the symbol. */
459 HOWTO (R_PPC64_GOT16_HI, /* type */
460 16, /* rightshift */
461 1, /* size (0 = byte, 1 = short, 2 = long) */
462 16, /* bitsize */
b34976b6 463 FALSE, /* pc_relative */
5bd4f169
AM		 464 0, /* bitpos */
465 complain_overflow_dont,/* complain_on_overflow */
805fc799 466 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 467 "R_PPC64_GOT16_HI", /* name */
b34976b6 468 FALSE, /* partial_inplace */
5bd4f169
AM		 469 0, /* src_mask */
470 0xffff, /* dst_mask */
b34976b6 471 FALSE), /* pcrel_offset */
5bd4f169
AM		 472
473 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
474 the symbol. */
475 HOWTO (R_PPC64_GOT16_HA, /* type */
476 16, /* rightshift */
477 1, /* size (0 = byte, 1 = short, 2 = long) */
478 16, /* bitsize */
b34976b6 479 FALSE, /* pc_relative */
5bd4f169
AM		 480 0, /* bitpos */
481 complain_overflow_dont,/* complain_on_overflow */
805fc799 482 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 483 "R_PPC64_GOT16_HA", /* name */
b34976b6 484 FALSE, /* partial_inplace */
5bd4f169
AM		 485 0, /* src_mask */
486 0xffff, /* dst_mask */
b34976b6 487 FALSE), /* pcrel_offset */
5bd4f169
AM		 488
489 /* This is used only by the dynamic linker. The symbol should exist
490 both in the object being run and in some shared library. The
491 dynamic linker copies the data addressed by the symbol from the
492 shared library into the object, because the object being
493 run has to have the data at some particular address. */
494 HOWTO (R_PPC64_COPY, /* type */
495 0, /* rightshift */
f5e87a1d
AM		 496 0, /* this one is variable size */
497 0, /* bitsize */
b34976b6 498 FALSE, /* pc_relative */
5bd4f169 499 0, /* bitpos */
f5e87a1d
AM		 500 complain_overflow_dont, /* complain_on_overflow */
501 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 502 "R_PPC64_COPY", /* name */
b34976b6 503 FALSE, /* partial_inplace */
5bd4f169
AM		 504 0, /* src_mask */
505 0, /* dst_mask */
b34976b6 506 FALSE), /* pcrel_offset */
5bd4f169
AM		 507
508 /* Like R_PPC64_ADDR64, but used when setting global offset table
509 entries. */
510 HOWTO (R_PPC64_GLOB_DAT, /* type */
511 0, /* rightshift */
512 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
513 64, /* bitsize */
b34976b6 514 FALSE, /* pc_relative */
5bd4f169
AM		 515 0, /* bitpos */
516 complain_overflow_dont, /* complain_on_overflow */
805fc799 517 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 518 "R_PPC64_GLOB_DAT", /* name */
b34976b6 519 FALSE, /* partial_inplace */
5bd4f169 520 0, /* src_mask */
f5e87a1d 521 ONES (64), /* dst_mask */
b34976b6 522 FALSE), /* pcrel_offset */
5bd4f169
AM		 523
524 /* Created by the link editor. Marks a procedure linkage table
525 entry for a symbol. */
526 HOWTO (R_PPC64_JMP_SLOT, /* type */
527 0, /* rightshift */
528 0, /* size (0 = byte, 1 = short, 2 = long) */
529 0, /* bitsize */
b34976b6 530 FALSE, /* pc_relative */
5bd4f169
AM		 531 0, /* bitpos */
532 complain_overflow_dont, /* complain_on_overflow */
805fc799 533 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 534 "R_PPC64_JMP_SLOT", /* name */
b34976b6 535 FALSE, /* partial_inplace */
5bd4f169
AM		 536 0, /* src_mask */
537 0, /* dst_mask */
b34976b6 538 FALSE), /* pcrel_offset */
5bd4f169
AM		 539
540 /* Used only by the dynamic linker. When the object is run, this
541 doubleword64 is set to the load address of the object, plus the
542 addend. */
543 HOWTO (R_PPC64_RELATIVE, /* type */
544 0, /* rightshift */
545 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
546 64, /* bitsize */
b34976b6 547 FALSE, /* pc_relative */
5bd4f169
AM		 548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 bfd_elf_generic_reloc, /* special_function */
551 "R_PPC64_RELATIVE", /* name */
b34976b6 552 FALSE, /* partial_inplace */
5bd4f169 553 0, /* src_mask */
f5e87a1d 554 ONES (64), /* dst_mask */
b34976b6 555 FALSE), /* pcrel_offset */
5bd4f169
AM		 556
557 /* Like R_PPC64_ADDR32, but may be unaligned. */
558 HOWTO (R_PPC64_UADDR32, /* type */
559 0, /* rightshift */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
561 32, /* bitsize */
b34976b6 562 FALSE, /* pc_relative */
5bd4f169
AM		 563 0, /* bitpos */
564 complain_overflow_bitfield, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_PPC64_UADDR32", /* name */
b34976b6 567 FALSE, /* partial_inplace */
5bd4f169
AM		 568 0, /* src_mask */
569 0xffffffff, /* dst_mask */
b34976b6 570 FALSE), /* pcrel_offset */
5bd4f169
AM		 571
572 /* Like R_PPC64_ADDR16, but may be unaligned. */
573 HOWTO (R_PPC64_UADDR16, /* type */
574 0, /* rightshift */
575 1, /* size (0 = byte, 1 = short, 2 = long) */
576 16, /* bitsize */
b34976b6 577 FALSE, /* pc_relative */
5bd4f169
AM		 578 0, /* bitpos */
579 complain_overflow_bitfield, /* complain_on_overflow */
580 bfd_elf_generic_reloc, /* special_function */
581 "R_PPC64_UADDR16", /* name */
b34976b6 582 FALSE, /* partial_inplace */
5bd4f169
AM		 583 0, /* src_mask */
584 0xffff, /* dst_mask */
b34976b6 585 FALSE), /* pcrel_offset */
5bd4f169
AM		 586
587 /* 32-bit PC relative. */
588 HOWTO (R_PPC64_REL32, /* type */
589 0, /* rightshift */
590 2, /* size (0 = byte, 1 = short, 2 = long) */
591 32, /* bitsize */
b34976b6 592 TRUE, /* pc_relative */
5bd4f169 593 0, /* bitpos */
cedb70c5 594 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM		 595 complain_overflow_signed, /* complain_on_overflow */
596 bfd_elf_generic_reloc, /* special_function */
597 "R_PPC64_REL32", /* name */
b34976b6 598 FALSE, /* partial_inplace */
5bd4f169
AM		 599 0, /* src_mask */
600 0xffffffff, /* dst_mask */
b34976b6 601 TRUE), /* pcrel_offset */
5bd4f169 602
10ed1bba 603 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 604 HOWTO (R_PPC64_PLT32, /* type */
605 0, /* rightshift */
606 2, /* size (0 = byte, 1 = short, 2 = long) */
607 32, /* bitsize */
b34976b6 608 FALSE, /* pc_relative */
5bd4f169
AM		 609 0, /* bitpos */
610 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 611 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 612 "R_PPC64_PLT32", /* name */
b34976b6 613 FALSE, /* partial_inplace */
5bd4f169 614 0, /* src_mask */
f5e87a1d 615 0xffffffff, /* dst_mask */
b34976b6 616 FALSE), /* pcrel_offset */
5bd4f169
AM		 617
618 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
619 FIXME: R_PPC64_PLTREL32 not supported. */
620 HOWTO (R_PPC64_PLTREL32, /* type */
621 0, /* rightshift */
622 2, /* size (0 = byte, 1 = short, 2 = long) */
623 32, /* bitsize */
b34976b6 624 TRUE, /* pc_relative */
5bd4f169
AM		 625 0, /* bitpos */
626 complain_overflow_signed, /* complain_on_overflow */
627 bfd_elf_generic_reloc, /* special_function */
628 "R_PPC64_PLTREL32", /* name */
b34976b6 629 FALSE, /* partial_inplace */
5bd4f169 630 0, /* src_mask */
f5e87a1d 631 0xffffffff, /* dst_mask */
b34976b6 632 TRUE), /* pcrel_offset */
5bd4f169
AM		 633
634 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
635 the symbol. */
636 HOWTO (R_PPC64_PLT16_LO, /* type */
637 0, /* rightshift */
638 1, /* size (0 = byte, 1 = short, 2 = long) */
639 16, /* bitsize */
b34976b6 640 FALSE, /* pc_relative */
5bd4f169
AM		 641 0, /* bitpos */
642 complain_overflow_dont, /* complain_on_overflow */
805fc799 643 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 644 "R_PPC64_PLT16_LO", /* name */
b34976b6 645 FALSE, /* partial_inplace */
5bd4f169
AM		 646 0, /* src_mask */
647 0xffff, /* dst_mask */
b34976b6 648 FALSE), /* pcrel_offset */
5bd4f169
AM		 649
650 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
651 the symbol. */
652 HOWTO (R_PPC64_PLT16_HI, /* type */
653 16, /* rightshift */
654 1, /* size (0 = byte, 1 = short, 2 = long) */
655 16, /* bitsize */
b34976b6 656 FALSE, /* pc_relative */
5bd4f169
AM		 657 0, /* bitpos */
658 complain_overflow_dont, /* complain_on_overflow */
805fc799 659 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 660 "R_PPC64_PLT16_HI", /* name */
b34976b6 661 FALSE, /* partial_inplace */
5bd4f169
AM		 662 0, /* src_mask */
663 0xffff, /* dst_mask */
b34976b6 664 FALSE), /* pcrel_offset */
5bd4f169
AM		 665
666 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
667 the symbol. */
668 HOWTO (R_PPC64_PLT16_HA, /* type */
669 16, /* rightshift */
670 1, /* size (0 = byte, 1 = short, 2 = long) */
671 16, /* bitsize */
b34976b6 672 FALSE, /* pc_relative */
5bd4f169
AM		 673 0, /* bitpos */
674 complain_overflow_dont, /* complain_on_overflow */
805fc799 675 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 676 "R_PPC64_PLT16_HA", /* name */
b34976b6 677 FALSE, /* partial_inplace */
5bd4f169
AM		 678 0, /* src_mask */
679 0xffff, /* dst_mask */
b34976b6 680 FALSE), /* pcrel_offset */
5bd4f169 681
c061c2d8 682 /* 16-bit section relative relocation. */
5bd4f169
AM		 683 HOWTO (R_PPC64_SECTOFF, /* type */
684 0, /* rightshift */
c061c2d8
AM		 685 1, /* size (0 = byte, 1 = short, 2 = long) */
686 16, /* bitsize */
b34976b6 687 FALSE, /* pc_relative */
5bd4f169
AM		 688 0, /* bitpos */
689 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 690 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 691 "R_PPC64_SECTOFF", /* name */
b34976b6 692 FALSE, /* partial_inplace */
5bd4f169 693 0, /* src_mask */
c061c2d8 694 0xffff, /* dst_mask */
b34976b6 695 FALSE), /* pcrel_offset */
5bd4f169 696
c061c2d8 697 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 698 HOWTO (R_PPC64_SECTOFF_LO, /* type */
699 0, /* rightshift */
700 1, /* size (0 = byte, 1 = short, 2 = long) */
701 16, /* bitsize */
b34976b6 702 FALSE, /* pc_relative */
5bd4f169
AM		 703 0, /* bitpos */
704 complain_overflow_dont, /* complain_on_overflow */
805fc799 705 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 706 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 707 FALSE, /* partial_inplace */
5bd4f169
AM		 708 0, /* src_mask */
709 0xffff, /* dst_mask */
b34976b6 710 FALSE), /* pcrel_offset */
5bd4f169
AM		 711
712 /* 16-bit upper half section relative relocation. */
713 HOWTO (R_PPC64_SECTOFF_HI, /* type */
714 16, /* rightshift */
715 1, /* size (0 = byte, 1 = short, 2 = long) */
716 16, /* bitsize */
b34976b6 717 FALSE, /* pc_relative */
5bd4f169
AM		 718 0, /* bitpos */
719 complain_overflow_dont, /* complain_on_overflow */
805fc799 720 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 721 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 722 FALSE, /* partial_inplace */
5bd4f169
AM		 723 0, /* src_mask */
724 0xffff, /* dst_mask */
b34976b6 725 FALSE), /* pcrel_offset */
5bd4f169
AM		 726
727 /* 16-bit upper half adjusted section relative relocation. */
728 HOWTO (R_PPC64_SECTOFF_HA, /* type */
729 16, /* rightshift */
730 1, /* size (0 = byte, 1 = short, 2 = long) */
731 16, /* bitsize */
b34976b6 732 FALSE, /* pc_relative */
5bd4f169
AM		 733 0, /* bitpos */
734 complain_overflow_dont, /* complain_on_overflow */
805fc799 735 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 736 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 737 FALSE, /* partial_inplace */
5bd4f169
AM		 738 0, /* src_mask */
739 0xffff, /* dst_mask */
b34976b6 740 FALSE), /* pcrel_offset */
5bd4f169 741
04c9666a
AM		 742 /* Like R_PPC64_REL24 without touching the two least significant bits. */
743 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 744 2, /* rightshift */
745 2, /* size (0 = byte, 1 = short, 2 = long) */
746 30, /* bitsize */
b34976b6 747 TRUE, /* pc_relative */
5bd4f169
AM		 748 0, /* bitpos */
749 complain_overflow_dont, /* complain_on_overflow */
750 bfd_elf_generic_reloc, /* special_function */
04c9666a 751 "R_PPC64_REL30", /* name */
b34976b6 752 FALSE, /* partial_inplace */
d006db6c 753 0, /* src_mask */
5bd4f169 754 0xfffffffc, /* dst_mask */
b34976b6 755 TRUE), /* pcrel_offset */
5bd4f169
AM		 756
757 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
758
759 /* A standard 64-bit relocation. */
760 HOWTO (R_PPC64_ADDR64, /* type */
761 0, /* rightshift */
762 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
763 64, /* bitsize */
b34976b6 764 FALSE, /* pc_relative */
5bd4f169
AM		 765 0, /* bitpos */
766 complain_overflow_dont, /* complain_on_overflow */
767 bfd_elf_generic_reloc, /* special_function */
768 "R_PPC64_ADDR64", /* name */
b34976b6 769 FALSE, /* partial_inplace */
5bd4f169 770 0, /* src_mask */
f5e87a1d 771 ONES (64), /* dst_mask */
b34976b6 772 FALSE), /* pcrel_offset */
5bd4f169
AM		 773
774 /* The bits 32-47 of an address. */
775 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
776 32, /* rightshift */
777 1, /* size (0 = byte, 1 = short, 2 = long) */
778 16, /* bitsize */
b34976b6 779 FALSE, /* pc_relative */
5bd4f169
AM		 780 0, /* bitpos */
781 complain_overflow_dont, /* complain_on_overflow */
782 bfd_elf_generic_reloc, /* special_function */
783 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 784 FALSE, /* partial_inplace */
5bd4f169
AM		 785 0, /* src_mask */
786 0xffff, /* dst_mask */
b34976b6 787 FALSE), /* pcrel_offset */
5bd4f169
AM		 788
789 /* The bits 32-47 of an address, plus 1 if the contents of the low
790 16 bits, treated as a signed number, is negative. */
791 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
792 32, /* rightshift */
793 1, /* size (0 = byte, 1 = short, 2 = long) */
794 16, /* bitsize */
b34976b6 795 FALSE, /* pc_relative */
5bd4f169
AM		 796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
805fc799 798 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 799 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 800 FALSE, /* partial_inplace */
5bd4f169
AM		 801 0, /* src_mask */
802 0xffff, /* dst_mask */
b34976b6 803 FALSE), /* pcrel_offset */
5bd4f169
AM		 804
805 /* The bits 48-63 of an address. */
806 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
807 48, /* rightshift */
808 1, /* size (0 = byte, 1 = short, 2 = long) */
809 16, /* bitsize */
b34976b6 810 FALSE, /* pc_relative */
5bd4f169
AM		 811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 815 FALSE, /* partial_inplace */
5bd4f169
AM		 816 0, /* src_mask */
817 0xffff, /* dst_mask */
b34976b6 818 FALSE), /* pcrel_offset */
5bd4f169
AM		 819
820 /* The bits 48-63 of an address, plus 1 if the contents of the low
821 16 bits, treated as a signed number, is negative. */
822 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
823 48, /* rightshift */
824 1, /* size (0 = byte, 1 = short, 2 = long) */
825 16, /* bitsize */
b34976b6 826 FALSE, /* pc_relative */
5bd4f169
AM		 827 0, /* bitpos */
828 complain_overflow_dont, /* complain_on_overflow */
805fc799 829 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 830 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 831 FALSE, /* partial_inplace */
5bd4f169
AM		 832 0, /* src_mask */
833 0xffff, /* dst_mask */
b34976b6 834 FALSE), /* pcrel_offset */
5bd4f169
AM		 835
836 /* Like ADDR64, but may be unaligned. */
837 HOWTO (R_PPC64_UADDR64, /* type */
838 0, /* rightshift */
839 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
840 64, /* bitsize */
b34976b6 841 FALSE, /* pc_relative */
5bd4f169
AM		 842 0, /* bitpos */
843 complain_overflow_dont, /* complain_on_overflow */
844 bfd_elf_generic_reloc, /* special_function */
845 "R_PPC64_UADDR64", /* name */
b34976b6 846 FALSE, /* partial_inplace */
5bd4f169 847 0, /* src_mask */
f5e87a1d 848 ONES (64), /* dst_mask */
b34976b6 849 FALSE), /* pcrel_offset */
5bd4f169
AM		 850
851 /* 64-bit relative relocation. */
852 HOWTO (R_PPC64_REL64, /* type */
853 0, /* rightshift */
854 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
855 64, /* bitsize */
b34976b6 856 TRUE, /* pc_relative */
5bd4f169
AM		 857 0, /* bitpos */
858 complain_overflow_dont, /* complain_on_overflow */
859 bfd_elf_generic_reloc, /* special_function */
860 "R_PPC64_REL64", /* name */
b34976b6 861 FALSE, /* partial_inplace */
5bd4f169 862 0, /* src_mask */
f5e87a1d 863 ONES (64), /* dst_mask */
b34976b6 864 TRUE), /* pcrel_offset */
5bd4f169 865
cedb70c5 866 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 867 HOWTO (R_PPC64_PLT64, /* type */
868 0, /* rightshift */
869 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
870 64, /* bitsize */
b34976b6 871 FALSE, /* 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_PLT64", /* name */
b34976b6 876 FALSE, /* partial_inplace */
5bd4f169 877 0, /* src_mask */
f5e87a1d 878 ONES (64), /* dst_mask */
b34976b6 879 FALSE), /* pcrel_offset */
5bd4f169
AM		 880
881 /* 64-bit PC relative relocation to the symbol's procedure linkage
882 table. */
883 /* FIXME: R_PPC64_PLTREL64 not supported. */
884 HOWTO (R_PPC64_PLTREL64, /* type */
885 0, /* rightshift */
886 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
887 64, /* bitsize */
b34976b6 888 TRUE, /* pc_relative */
5bd4f169
AM		 889 0, /* bitpos */
890 complain_overflow_dont, /* complain_on_overflow */
805fc799 891 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 892 "R_PPC64_PLTREL64", /* name */
b34976b6 893 FALSE, /* partial_inplace */
5bd4f169 894 0, /* src_mask */
f5e87a1d 895 ONES (64), /* dst_mask */
b34976b6 896 TRUE), /* pcrel_offset */
5bd4f169
AM		 897
898 /* 16 bit TOC-relative relocation. */
899
900 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
901 HOWTO (R_PPC64_TOC16, /* 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_signed, /* complain_on_overflow */
805fc799 908 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 909 "R_PPC64_TOC16", /* 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 without overflow. */
916
917 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
918 HOWTO (R_PPC64_TOC16_LO, /* type */
919 0, /* 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_LO", /* 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. */
933
934 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
935 HOWTO (R_PPC64_TOC16_HI, /* type */
936 16, /* rightshift */
937 1, /* size (0 = byte, 1 = short, 2 = long) */
938 16, /* bitsize */
b34976b6 939 FALSE, /* pc_relative */
5bd4f169
AM		 940 0, /* bitpos */
941 complain_overflow_dont, /* complain_on_overflow */
805fc799 942 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 943 "R_PPC64_TOC16_HI", /* name */
b34976b6 944 FALSE, /* partial_inplace */
5bd4f169
AM		 945 0, /* src_mask */
946 0xffff, /* dst_mask */
b34976b6 947 FALSE), /* pcrel_offset */
5bd4f169
AM		 948
949 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
950 contents of the low 16 bits, treated as a signed number, is
951 negative. */
952
953 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
954 HOWTO (R_PPC64_TOC16_HA, /* type */
955 16, /* rightshift */
956 1, /* size (0 = byte, 1 = short, 2 = long) */
957 16, /* bitsize */
b34976b6 958 FALSE, /* pc_relative */
5bd4f169
AM		 959 0, /* bitpos */
960 complain_overflow_dont, /* complain_on_overflow */
805fc799 961 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 962 "R_PPC64_TOC16_HA", /* name */
b34976b6 963 FALSE, /* partial_inplace */
5bd4f169
AM		 964 0, /* src_mask */
965 0xffff, /* dst_mask */
b34976b6 966 FALSE), /* pcrel_offset */
5bd4f169
AM		 967
968 /* 64-bit relocation; insert value of TOC base (.TOC.). */
969
970 /* R_PPC64_TOC 51 doubleword64 .TOC. */
971 HOWTO (R_PPC64_TOC, /* type */
972 0, /* rightshift */
973 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
974 64, /* bitsize */
b34976b6 975 FALSE, /* pc_relative */
5bd4f169
AM		 976 0, /* bitpos */
977 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 978 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 979 "R_PPC64_TOC", /* name */
b34976b6 980 FALSE, /* partial_inplace */
5bd4f169 981 0, /* src_mask */
f5e87a1d 982 ONES (64), /* dst_mask */
b34976b6 983 FALSE), /* pcrel_offset */
5bd4f169
AM		 984
985 /* Like R_PPC64_GOT16, but also informs the link editor that the
986 value to relocate may (!) refer to a PLT entry which the link
987 editor (a) may replace with the symbol value. If the link editor
988 is unable to fully resolve the symbol, it may (b) create a PLT
989 entry and store the address to the new PLT entry in the GOT.
990 This permits lazy resolution of function symbols at run time.
991 The link editor may also skip all of this and just (c) emit a
992 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
993 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
994 HOWTO (R_PPC64_PLTGOT16, /* type */
995 0, /* rightshift */
996 1, /* size (0 = byte, 1 = short, 2 = long) */
997 16, /* bitsize */
b34976b6 998 FALSE, /* pc_relative */
5bd4f169
AM		 999 0, /* bitpos */
1000 complain_overflow_signed, /* complain_on_overflow */
805fc799 1001 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 1002 "R_PPC64_PLTGOT16", /* name */
1003 FALSE, /* partial_inplace */
1004 0, /* src_mask */
1005 0xffff, /* dst_mask */
1006 FALSE), /* pcrel_offset */
1007
1008 /* Like R_PPC64_PLTGOT16, but without overflow. */
1009 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1010 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
1011 0, /* rightshift */
1012 1, /* size (0 = byte, 1 = short, 2 = long) */
1013 16, /* bitsize */
1014 FALSE, /* pc_relative */
1015 0, /* bitpos */
1016 complain_overflow_dont, /* complain_on_overflow */
1017 ppc64_elf_unhandled_reloc, /* special_function */
1018 "R_PPC64_PLTGOT16_LO", /* name */
1019 FALSE, /* partial_inplace */
1020 0, /* src_mask */
1021 0xffff, /* dst_mask */
1022 FALSE), /* pcrel_offset */
1023
1024 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1025 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1026 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1027 16, /* rightshift */
1028 1, /* size (0 = byte, 1 = short, 2 = long) */
1029 16, /* bitsize */
1030 FALSE, /* pc_relative */
1031 0, /* bitpos */
1032 complain_overflow_dont, /* complain_on_overflow */
1033 ppc64_elf_unhandled_reloc, /* special_function */
1034 "R_PPC64_PLTGOT16_HI", /* name */
1035 FALSE, /* partial_inplace */
1036 0, /* src_mask */
1037 0xffff, /* dst_mask */
1038 FALSE), /* pcrel_offset */
1039
1040 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1041 1 if the contents of the low 16 bits, treated as a signed number,
1042 is negative. */
1043 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1044 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1045 16, /* rightshift */
1046 1, /* size (0 = byte, 1 = short, 2 = long) */
1047 16, /* bitsize */
1048 FALSE, /* pc_relative */
1049 0, /* bitpos */
1050 complain_overflow_dont,/* complain_on_overflow */
1051 ppc64_elf_unhandled_reloc, /* special_function */
1052 "R_PPC64_PLTGOT16_HA", /* name */
1053 FALSE, /* partial_inplace */
1054 0, /* src_mask */
1055 0xffff, /* dst_mask */
1056 FALSE), /* pcrel_offset */
1057
1058 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1059 HOWTO (R_PPC64_ADDR16_DS, /* type */
1060 0, /* rightshift */
1061 1, /* size (0 = byte, 1 = short, 2 = long) */
1062 16, /* bitsize */
1063 FALSE, /* pc_relative */
1064 0, /* bitpos */
1065 complain_overflow_bitfield, /* complain_on_overflow */
1066 bfd_elf_generic_reloc, /* special_function */
1067 "R_PPC64_ADDR16_DS", /* name */
1068 FALSE, /* partial_inplace */
1069 0, /* src_mask */
1070 0xfffc, /* dst_mask */
1071 FALSE), /* pcrel_offset */
1072
1073 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1074 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1075 0, /* rightshift */
1076 1, /* size (0 = byte, 1 = short, 2 = long) */
1077 16, /* bitsize */
1078 FALSE, /* pc_relative */
1079 0, /* bitpos */
1080 complain_overflow_dont,/* complain_on_overflow */
1081 bfd_elf_generic_reloc, /* special_function */
1082 "R_PPC64_ADDR16_LO_DS",/* name */
1083 FALSE, /* partial_inplace */
1084 0, /* src_mask */
1085 0xfffc, /* dst_mask */
1086 FALSE), /* pcrel_offset */
1087
1088 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1089 HOWTO (R_PPC64_GOT16_DS, /* type */
1090 0, /* rightshift */
1091 1, /* size (0 = byte, 1 = short, 2 = long) */
1092 16, /* bitsize */
1093 FALSE, /* pc_relative */
1094 0, /* bitpos */
1095 complain_overflow_signed, /* complain_on_overflow */
1096 ppc64_elf_unhandled_reloc, /* special_function */
1097 "R_PPC64_GOT16_DS", /* name */
1098 FALSE, /* partial_inplace */
1099 0, /* src_mask */
1100 0xfffc, /* dst_mask */
1101 FALSE), /* pcrel_offset */
1102
1103 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1104 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1105 0, /* rightshift */
1106 1, /* size (0 = byte, 1 = short, 2 = long) */
1107 16, /* bitsize */
1108 FALSE, /* pc_relative */
1109 0, /* bitpos */
1110 complain_overflow_dont, /* complain_on_overflow */
1111 ppc64_elf_unhandled_reloc, /* special_function */
1112 "R_PPC64_GOT16_LO_DS", /* name */
1113 FALSE, /* partial_inplace */
1114 0, /* src_mask */
1115 0xfffc, /* dst_mask */
1116 FALSE), /* pcrel_offset */
1117
1118 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1119 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1120 0, /* rightshift */
1121 1, /* size (0 = byte, 1 = short, 2 = long) */
1122 16, /* bitsize */
1123 FALSE, /* pc_relative */
1124 0, /* bitpos */
1125 complain_overflow_dont, /* complain_on_overflow */
1126 ppc64_elf_unhandled_reloc, /* special_function */
1127 "R_PPC64_PLT16_LO_DS", /* name */
1128 FALSE, /* partial_inplace */
1129 0, /* src_mask */
1130 0xfffc, /* dst_mask */
1131 FALSE), /* pcrel_offset */
1132
1133 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1134 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1135 0, /* rightshift */
1136 1, /* size (0 = byte, 1 = short, 2 = long) */
1137 16, /* bitsize */
1138 FALSE, /* pc_relative */
1139 0, /* bitpos */
1140 complain_overflow_bitfield, /* complain_on_overflow */
1141 ppc64_elf_sectoff_reloc, /* special_function */
1142 "R_PPC64_SECTOFF_DS", /* name */
1143 FALSE, /* partial_inplace */
1144 0, /* src_mask */
1145 0xfffc, /* dst_mask */
1146 FALSE), /* pcrel_offset */
1147
1148 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1149 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1150 0, /* rightshift */
1151 1, /* size (0 = byte, 1 = short, 2 = long) */
1152 16, /* bitsize */
1153 FALSE, /* pc_relative */
1154 0, /* bitpos */
1155 complain_overflow_dont, /* complain_on_overflow */
1156 ppc64_elf_sectoff_reloc, /* special_function */
1157 "R_PPC64_SECTOFF_LO_DS",/* name */
1158 FALSE, /* partial_inplace */
1159 0, /* src_mask */
1160 0xfffc, /* dst_mask */
1161 FALSE), /* pcrel_offset */
1162
1163 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1164 HOWTO (R_PPC64_TOC16_DS, /* type */
1165 0, /* rightshift */
1166 1, /* size (0 = byte, 1 = short, 2 = long) */
1167 16, /* bitsize */
1168 FALSE, /* pc_relative */
1169 0, /* bitpos */
1170 complain_overflow_signed, /* complain_on_overflow */
1171 ppc64_elf_toc_reloc, /* special_function */
1172 "R_PPC64_TOC16_DS", /* name */
1173 FALSE, /* partial_inplace */
1174 0, /* src_mask */
1175 0xfffc, /* dst_mask */
1176 FALSE), /* pcrel_offset */
1177
1178 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1179 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1180 0, /* rightshift */
1181 1, /* size (0 = byte, 1 = short, 2 = long) */
1182 16, /* bitsize */
1183 FALSE, /* pc_relative */
1184 0, /* bitpos */
1185 complain_overflow_dont, /* complain_on_overflow */
1186 ppc64_elf_toc_reloc, /* special_function */
1187 "R_PPC64_TOC16_LO_DS", /* name */
1188 FALSE, /* partial_inplace */
1189 0, /* src_mask */
1190 0xfffc, /* dst_mask */
1191 FALSE), /* pcrel_offset */
1192
1193 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1194 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1195 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1196 0, /* rightshift */
1197 1, /* size (0 = byte, 1 = short, 2 = long) */
1198 16, /* bitsize */
1199 FALSE, /* pc_relative */
1200 0, /* bitpos */
1201 complain_overflow_signed, /* complain_on_overflow */
1202 ppc64_elf_unhandled_reloc, /* special_function */
1203 "R_PPC64_PLTGOT16_DS", /* name */
1204 FALSE, /* partial_inplace */
1205 0, /* src_mask */
1206 0xfffc, /* dst_mask */
1207 FALSE), /* pcrel_offset */
1208
1209 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1210 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1211 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1212 0, /* rightshift */
1213 1, /* size (0 = byte, 1 = short, 2 = long) */
1214 16, /* bitsize */
1215 FALSE, /* pc_relative */
1216 0, /* bitpos */
1217 complain_overflow_dont, /* complain_on_overflow */
1218 ppc64_elf_unhandled_reloc, /* special_function */
1219 "R_PPC64_PLTGOT16_LO_DS",/* name */
1220 FALSE, /* partial_inplace */
1221 0, /* src_mask */
1222 0xfffc, /* dst_mask */
1223 FALSE), /* pcrel_offset */
1224
1225 /* Marker reloc for TLS. */
1226 HOWTO (R_PPC64_TLS,
1227 0, /* rightshift */
1228 2, /* size (0 = byte, 1 = short, 2 = long) */
1229 32, /* bitsize */
1230 FALSE, /* pc_relative */
1231 0, /* bitpos */
1232 complain_overflow_dont, /* complain_on_overflow */
1233 bfd_elf_generic_reloc, /* special_function */
1234 "R_PPC64_TLS", /* name */
1235 FALSE, /* partial_inplace */
1236 0, /* src_mask */
1237 0, /* dst_mask */
1238 FALSE), /* pcrel_offset */
1239
1240 /* Computes the load module index of the load module that contains the
1241 definition of its TLS sym. */
1242 HOWTO (R_PPC64_DTPMOD64,
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_DTPMOD64", /* name */
1251 FALSE, /* partial_inplace */
1252 0, /* src_mask */
1253 ONES (64), /* dst_mask */
1254 FALSE), /* pcrel_offset */
1255
1256 /* Computes a dtv-relative displacement, the difference between the value
1257 of sym+add and the base address of the thread-local storage block that
1258 contains the definition of sym, minus 0x8000. */
1259 HOWTO (R_PPC64_DTPREL64,
1260 0, /* rightshift */
1261 4, /* size (0 = byte, 1 = short, 2 = long) */
1262 64, /* bitsize */
1263 FALSE, /* pc_relative */
1264 0, /* bitpos */
1265 complain_overflow_dont, /* complain_on_overflow */
1266 ppc64_elf_unhandled_reloc, /* special_function */
1267 "R_PPC64_DTPREL64", /* name */
1268 FALSE, /* partial_inplace */
1269 0, /* src_mask */
1270 ONES (64), /* dst_mask */
1271 FALSE), /* pcrel_offset */
1272
1273 /* A 16 bit dtprel reloc. */
1274 HOWTO (R_PPC64_DTPREL16,
1275 0, /* rightshift */
1276 1, /* size (0 = byte, 1 = short, 2 = long) */
1277 16, /* bitsize */
1278 FALSE, /* pc_relative */
1279 0, /* bitpos */
1280 complain_overflow_signed, /* complain_on_overflow */
1281 ppc64_elf_unhandled_reloc, /* special_function */
1282 "R_PPC64_DTPREL16", /* name */
1283 FALSE, /* partial_inplace */
1284 0, /* src_mask */
1285 0xffff, /* dst_mask */
1286 FALSE), /* pcrel_offset */
1287
1288 /* Like DTPREL16, but no overflow. */
1289 HOWTO (R_PPC64_DTPREL16_LO,
1290 0, /* rightshift */
1291 1, /* size (0 = byte, 1 = short, 2 = long) */
1292 16, /* bitsize */
1293 FALSE, /* pc_relative */
1294 0, /* bitpos */
1295 complain_overflow_dont, /* complain_on_overflow */
1296 ppc64_elf_unhandled_reloc, /* special_function */
1297 "R_PPC64_DTPREL16_LO", /* name */
1298 FALSE, /* partial_inplace */
1299 0, /* src_mask */
1300 0xffff, /* dst_mask */
1301 FALSE), /* pcrel_offset */
1302
1303 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1304 HOWTO (R_PPC64_DTPREL16_HI,
1305 16, /* rightshift */
1306 1, /* size (0 = byte, 1 = short, 2 = long) */
1307 16, /* bitsize */
1308 FALSE, /* pc_relative */
1309 0, /* bitpos */
1310 complain_overflow_dont, /* complain_on_overflow */
1311 ppc64_elf_unhandled_reloc, /* special_function */
1312 "R_PPC64_DTPREL16_HI", /* name */
1313 FALSE, /* partial_inplace */
1314 0, /* src_mask */
1315 0xffff, /* dst_mask */
1316 FALSE), /* pcrel_offset */
1317
1318 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1319 HOWTO (R_PPC64_DTPREL16_HA,
1320 16, /* rightshift */
1321 1, /* size (0 = byte, 1 = short, 2 = long) */
1322 16, /* bitsize */
1323 FALSE, /* pc_relative */
1324 0, /* bitpos */
1325 complain_overflow_dont, /* complain_on_overflow */
1326 ppc64_elf_unhandled_reloc, /* special_function */
1327 "R_PPC64_DTPREL16_HA", /* name */
1328 FALSE, /* partial_inplace */
1329 0, /* src_mask */
1330 0xffff, /* dst_mask */
1331 FALSE), /* pcrel_offset */
1332
1333 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1334 HOWTO (R_PPC64_DTPREL16_HIGHER,
1335 32, /* rightshift */
1336 1, /* size (0 = byte, 1 = short, 2 = long) */
1337 16, /* bitsize */
1338 FALSE, /* pc_relative */
1339 0, /* bitpos */
1340 complain_overflow_dont, /* complain_on_overflow */
1341 ppc64_elf_unhandled_reloc, /* special_function */
1342 "R_PPC64_DTPREL16_HIGHER", /* name */
1343 FALSE, /* partial_inplace */
1344 0, /* src_mask */
1345 0xffff, /* dst_mask */
1346 FALSE), /* pcrel_offset */
1347
1348 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1349 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1350 32, /* rightshift */
1351 1, /* size (0 = byte, 1 = short, 2 = long) */
1352 16, /* bitsize */
1353 FALSE, /* pc_relative */
1354 0, /* bitpos */
1355 complain_overflow_dont, /* complain_on_overflow */
1356 ppc64_elf_unhandled_reloc, /* special_function */
1357 "R_PPC64_DTPREL16_HIGHERA", /* name */
1358 FALSE, /* partial_inplace */
1359 0, /* src_mask */
1360 0xffff, /* dst_mask */
1361 FALSE), /* pcrel_offset */
1362
1363 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1364 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1365 48, /* rightshift */
1366 1, /* size (0 = byte, 1 = short, 2 = long) */
1367 16, /* bitsize */
1368 FALSE, /* pc_relative */
1369 0, /* bitpos */
1370 complain_overflow_dont, /* complain_on_overflow */
1371 ppc64_elf_unhandled_reloc, /* special_function */
1372 "R_PPC64_DTPREL16_HIGHEST", /* name */
1373 FALSE, /* partial_inplace */
1374 0, /* src_mask */
1375 0xffff, /* dst_mask */
1376 FALSE), /* pcrel_offset */
1377
1378 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1379 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1380 48, /* rightshift */
1381 1, /* size (0 = byte, 1 = short, 2 = long) */
1382 16, /* bitsize */
1383 FALSE, /* pc_relative */
1384 0, /* bitpos */
1385 complain_overflow_dont, /* complain_on_overflow */
1386 ppc64_elf_unhandled_reloc, /* special_function */
1387 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1388 FALSE, /* partial_inplace */
1389 0, /* src_mask */
1390 0xffff, /* dst_mask */
1391 FALSE), /* pcrel_offset */
1392
1393 /* Like DTPREL16, but for insns with a DS field. */
1394 HOWTO (R_PPC64_DTPREL16_DS,
1395 0, /* rightshift */
1396 1, /* size (0 = byte, 1 = short, 2 = long) */
1397 16, /* bitsize */
1398 FALSE, /* pc_relative */
1399 0, /* bitpos */
1400 complain_overflow_signed, /* complain_on_overflow */
1401 ppc64_elf_unhandled_reloc, /* special_function */
1402 "R_PPC64_DTPREL16_DS", /* name */
1403 FALSE, /* partial_inplace */
1404 0, /* src_mask */
1405 0xfffc, /* dst_mask */
1406 FALSE), /* pcrel_offset */
1407
1408 /* Like DTPREL16_DS, but no overflow. */
1409 HOWTO (R_PPC64_DTPREL16_LO_DS,
1410 0, /* rightshift */
1411 1, /* size (0 = byte, 1 = short, 2 = long) */
1412 16, /* bitsize */
1413 FALSE, /* pc_relative */
1414 0, /* bitpos */
1415 complain_overflow_dont, /* complain_on_overflow */
1416 ppc64_elf_unhandled_reloc, /* special_function */
1417 "R_PPC64_DTPREL16_LO_DS", /* name */
1418 FALSE, /* partial_inplace */
1419 0, /* src_mask */
1420 0xfffc, /* dst_mask */
1421 FALSE), /* pcrel_offset */
1422
1423 /* Computes a tp-relative displacement, the difference between the value of
1424 sym+add and the value of the thread pointer (r13). */
1425 HOWTO (R_PPC64_TPREL64,
1426 0, /* rightshift */
1427 4, /* size (0 = byte, 1 = short, 2 = long) */
1428 64, /* bitsize */
1429 FALSE, /* pc_relative */
1430 0, /* bitpos */
1431 complain_overflow_dont, /* complain_on_overflow */
1432 ppc64_elf_unhandled_reloc, /* special_function */
1433 "R_PPC64_TPREL64", /* name */
1434 FALSE, /* partial_inplace */
1435 0, /* src_mask */
1436 ONES (64), /* dst_mask */
1437 FALSE), /* pcrel_offset */
1438
1439 /* A 16 bit tprel reloc. */
1440 HOWTO (R_PPC64_TPREL16,
1441 0, /* rightshift */
1442 1, /* size (0 = byte, 1 = short, 2 = long) */
1443 16, /* bitsize */
1444 FALSE, /* pc_relative */
1445 0, /* bitpos */
1446 complain_overflow_signed, /* complain_on_overflow */
1447 ppc64_elf_unhandled_reloc, /* special_function */
1448 "R_PPC64_TPREL16", /* name */
1449 FALSE, /* partial_inplace */
1450 0, /* src_mask */
1451 0xffff, /* dst_mask */
1452 FALSE), /* pcrel_offset */
1453
1454 /* Like TPREL16, but no overflow. */
1455 HOWTO (R_PPC64_TPREL16_LO,
1456 0, /* rightshift */
1457 1, /* size (0 = byte, 1 = short, 2 = long) */
1458 16, /* bitsize */
1459 FALSE, /* pc_relative */
1460 0, /* bitpos */
1461 complain_overflow_dont, /* complain_on_overflow */
1462 ppc64_elf_unhandled_reloc, /* special_function */
1463 "R_PPC64_TPREL16_LO", /* name */
1464 FALSE, /* partial_inplace */
1465 0, /* src_mask */
1466 0xffff, /* dst_mask */
1467 FALSE), /* pcrel_offset */
1468
1469 /* Like TPREL16_LO, but next higher group of 16 bits. */
1470 HOWTO (R_PPC64_TPREL16_HI,
1471 16, /* rightshift */
1472 1, /* size (0 = byte, 1 = short, 2 = long) */
1473 16, /* bitsize */
1474 FALSE, /* pc_relative */
1475 0, /* bitpos */
1476 complain_overflow_dont, /* complain_on_overflow */
1477 ppc64_elf_unhandled_reloc, /* special_function */
1478 "R_PPC64_TPREL16_HI", /* name */
1479 FALSE, /* partial_inplace */
1480 0, /* src_mask */
1481 0xffff, /* dst_mask */
1482 FALSE), /* pcrel_offset */
1483
1484 /* Like TPREL16_HI, but adjust for low 16 bits. */
1485 HOWTO (R_PPC64_TPREL16_HA,
1486 16, /* rightshift */
1487 1, /* size (0 = byte, 1 = short, 2 = long) */
1488 16, /* bitsize */
1489 FALSE, /* pc_relative */
1490 0, /* bitpos */
1491 complain_overflow_dont, /* complain_on_overflow */
1492 ppc64_elf_unhandled_reloc, /* special_function */
1493 "R_PPC64_TPREL16_HA", /* name */
1494 FALSE, /* partial_inplace */
1495 0, /* src_mask */
1496 0xffff, /* dst_mask */
1497 FALSE), /* pcrel_offset */
1498
1499 /* Like TPREL16_HI, but next higher group of 16 bits. */
1500 HOWTO (R_PPC64_TPREL16_HIGHER,
1501 32, /* rightshift */
1502 1, /* size (0 = byte, 1 = short, 2 = long) */
1503 16, /* bitsize */
1504 FALSE, /* pc_relative */
1505 0, /* bitpos */
1506 complain_overflow_dont, /* complain_on_overflow */
1507 ppc64_elf_unhandled_reloc, /* special_function */
1508 "R_PPC64_TPREL16_HIGHER", /* name */
1509 FALSE, /* partial_inplace */
1510 0, /* src_mask */
1511 0xffff, /* dst_mask */
1512 FALSE), /* pcrel_offset */
1513
1514 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1515 HOWTO (R_PPC64_TPREL16_HIGHERA,
1516 32, /* rightshift */
1517 1, /* size (0 = byte, 1 = short, 2 = long) */
1518 16, /* bitsize */
1519 FALSE, /* pc_relative */
1520 0, /* bitpos */
1521 complain_overflow_dont, /* complain_on_overflow */
1522 ppc64_elf_unhandled_reloc, /* special_function */
1523 "R_PPC64_TPREL16_HIGHERA", /* name */
1524 FALSE, /* partial_inplace */
1525 0, /* src_mask */
1526 0xffff, /* dst_mask */
1527 FALSE), /* pcrel_offset */
1528
1529 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1530 HOWTO (R_PPC64_TPREL16_HIGHEST,
1531 48, /* rightshift */
1532 1, /* size (0 = byte, 1 = short, 2 = long) */
1533 16, /* bitsize */
1534 FALSE, /* pc_relative */
1535 0, /* bitpos */
1536 complain_overflow_dont, /* complain_on_overflow */
1537 ppc64_elf_unhandled_reloc, /* special_function */
1538 "R_PPC64_TPREL16_HIGHEST", /* name */
1539 FALSE, /* partial_inplace */
1540 0, /* src_mask */
1541 0xffff, /* dst_mask */
1542 FALSE), /* pcrel_offset */
1543
1544 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1545 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1546 48, /* rightshift */
1547 1, /* size (0 = byte, 1 = short, 2 = long) */
1548 16, /* bitsize */
1549 FALSE, /* pc_relative */
1550 0, /* bitpos */
1551 complain_overflow_dont, /* complain_on_overflow */
1552 ppc64_elf_unhandled_reloc, /* special_function */
1553 "R_PPC64_TPREL16_HIGHESTA", /* name */
1554 FALSE, /* partial_inplace */
1555 0, /* src_mask */
1556 0xffff, /* dst_mask */
1557 FALSE), /* pcrel_offset */
1558
1559 /* Like TPREL16, but for insns with a DS field. */
1560 HOWTO (R_PPC64_TPREL16_DS,
1561 0, /* rightshift */
1562 1, /* size (0 = byte, 1 = short, 2 = long) */
1563 16, /* bitsize */
1564 FALSE, /* pc_relative */
1565 0, /* bitpos */
1566 complain_overflow_signed, /* complain_on_overflow */
1567 ppc64_elf_unhandled_reloc, /* special_function */
1568 "R_PPC64_TPREL16_DS", /* name */
1569 FALSE, /* partial_inplace */
1570 0, /* src_mask */
1571 0xfffc, /* dst_mask */
1572 FALSE), /* pcrel_offset */
1573
1574 /* Like TPREL16_DS, but no overflow. */
1575 HOWTO (R_PPC64_TPREL16_LO_DS,
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_dont, /* complain_on_overflow */
1582 ppc64_elf_unhandled_reloc, /* special_function */
1583 "R_PPC64_TPREL16_LO_DS", /* name */
1584 FALSE, /* partial_inplace */
1585 0, /* src_mask */
1586 0xfffc, /* dst_mask */
1587 FALSE), /* pcrel_offset */
1588
1589 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1590 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1591 to the first entry relative to the TOC base (r2). */
1592 HOWTO (R_PPC64_GOT_TLSGD16,
1593 0, /* rightshift */
1594 1, /* size (0 = byte, 1 = short, 2 = long) */
1595 16, /* bitsize */
1596 FALSE, /* pc_relative */
1597 0, /* bitpos */
1598 complain_overflow_signed, /* complain_on_overflow */
1599 ppc64_elf_unhandled_reloc, /* special_function */
1600 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1601 FALSE, /* partial_inplace */
5bd4f169
AM		 1602 0, /* src_mask */
1603 0xffff, /* dst_mask */
b34976b6 1604 FALSE), /* pcrel_offset */
5bd4f169 1605
411e1bfb
AM		 1606 /* Like GOT_TLSGD16, but no overflow. */
1607 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1608 0, /* rightshift */
1609 1, /* size (0 = byte, 1 = short, 2 = long) */
1610 16, /* bitsize */
b34976b6 1611 FALSE, /* pc_relative */
5bd4f169
AM		 1612 0, /* bitpos */
1613 complain_overflow_dont, /* complain_on_overflow */
805fc799 1614 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1615 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1616 FALSE, /* partial_inplace */
5bd4f169
AM		 1617 0, /* src_mask */
1618 0xffff, /* dst_mask */
b34976b6 1619 FALSE), /* pcrel_offset */
5bd4f169 1620
411e1bfb
AM		 1621 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1622 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1623 16, /* rightshift */
1624 1, /* size (0 = byte, 1 = short, 2 = long) */
1625 16, /* bitsize */
b34976b6 1626 FALSE, /* pc_relative */
5bd4f169
AM		 1627 0, /* bitpos */
1628 complain_overflow_dont, /* complain_on_overflow */
805fc799 1629 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1630 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1631 FALSE, /* partial_inplace */
5bd4f169
AM		 1632 0, /* src_mask */
1633 0xffff, /* dst_mask */
b34976b6 1634 FALSE), /* pcrel_offset */
5bd4f169 1635
411e1bfb
AM		 1636 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1637 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1638 16, /* rightshift */
1639 1, /* size (0 = byte, 1 = short, 2 = long) */
1640 16, /* bitsize */
b34976b6 1641 FALSE, /* pc_relative */
5bd4f169 1642 0, /* bitpos */
411e1bfb 1643 complain_overflow_dont, /* complain_on_overflow */
805fc799 1644 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1645 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1646 FALSE, /* partial_inplace */
5bd4f169
AM		 1647 0, /* src_mask */
1648 0xffff, /* dst_mask */
b34976b6 1649 FALSE), /* pcrel_offset */
5bd4f169 1650
411e1bfb
AM		 1651 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1652 with values (sym+add)@dtpmod and zero, and computes the offset to the
1653 first entry relative to the TOC base (r2). */
1654 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1655 0, /* rightshift */
1656 1, /* size (0 = byte, 1 = short, 2 = long) */
1657 16, /* bitsize */
b34976b6 1658 FALSE, /* pc_relative */
5bd4f169 1659 0, /* bitpos */
411e1bfb
AM		 1660 complain_overflow_signed, /* complain_on_overflow */
1661 ppc64_elf_unhandled_reloc, /* special_function */
1662 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1663 FALSE, /* partial_inplace */
d006db6c 1664 0, /* src_mask */
411e1bfb 1665 0xffff, /* dst_mask */
b34976b6 1666 FALSE), /* pcrel_offset */
5bd4f169 1667
411e1bfb
AM		 1668 /* Like GOT_TLSLD16, but no overflow. */
1669 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1670 0, /* rightshift */
1671 1, /* size (0 = byte, 1 = short, 2 = long) */
1672 16, /* bitsize */
b34976b6 1673 FALSE, /* pc_relative */
5bd4f169 1674 0, /* bitpos */
411e1bfb
AM		 1675 complain_overflow_dont, /* complain_on_overflow */
1676 ppc64_elf_unhandled_reloc, /* special_function */
1677 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1678 FALSE, /* partial_inplace */
d006db6c 1679 0, /* src_mask */
411e1bfb 1680 0xffff, /* dst_mask */
b34976b6 1681 FALSE), /* pcrel_offset */
5bd4f169 1682
411e1bfb
AM		 1683 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1684 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1685 16, /* rightshift */
5bd4f169
AM		 1686 1, /* size (0 = byte, 1 = short, 2 = long) */
1687 16, /* bitsize */
b34976b6 1688 FALSE, /* pc_relative */
5bd4f169 1689 0, /* bitpos */
411e1bfb 1690 complain_overflow_dont, /* complain_on_overflow */
805fc799 1691 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1692 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1693 FALSE, /* partial_inplace */
d006db6c 1694 0, /* src_mask */
411e1bfb 1695 0xffff, /* dst_mask */
b34976b6 1696 FALSE), /* pcrel_offset */
5bd4f169 1697
411e1bfb
AM		 1698 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1699 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1700 16, /* rightshift */
5bd4f169
AM		 1701 1, /* size (0 = byte, 1 = short, 2 = long) */
1702 16, /* bitsize */
b34976b6 1703 FALSE, /* pc_relative */
5bd4f169
AM		 1704 0, /* bitpos */
1705 complain_overflow_dont, /* complain_on_overflow */
805fc799 1706 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1707 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1708 FALSE, /* partial_inplace */
d006db6c 1709 0, /* src_mask */
411e1bfb 1710 0xffff, /* dst_mask */
b34976b6 1711 FALSE), /* pcrel_offset */
5bd4f169 1712
411e1bfb
AM		 1713 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1714 the offset to the entry relative to the TOC base (r2). */
1715 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1716 0, /* rightshift */
1717 1, /* size (0 = byte, 1 = short, 2 = long) */
1718 16, /* bitsize */
b34976b6 1719 FALSE, /* pc_relative */
5bd4f169 1720 0, /* bitpos */
411e1bfb 1721 complain_overflow_signed, /* complain_on_overflow */
805fc799 1722 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1723 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1724 FALSE, /* partial_inplace */
d006db6c 1725 0, /* src_mask */
5bd4f169 1726 0xfffc, /* dst_mask */
b34976b6 1727 FALSE), /* pcrel_offset */
5bd4f169 1728
411e1bfb
AM		 1729 /* Like GOT_DTPREL16_DS, but no overflow. */
1730 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1731 0, /* rightshift */
c061c2d8
AM		 1732 1, /* size (0 = byte, 1 = short, 2 = long) */
1733 16, /* bitsize */
b34976b6 1734 FALSE, /* pc_relative */
5bd4f169 1735 0, /* bitpos */
411e1bfb
AM		 1736 complain_overflow_dont, /* complain_on_overflow */
1737 ppc64_elf_unhandled_reloc, /* special_function */
1738 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1739 FALSE, /* partial_inplace */
d006db6c 1740 0, /* src_mask */
c061c2d8 1741 0xfffc, /* dst_mask */
b34976b6 1742 FALSE), /* pcrel_offset */
5bd4f169 1743
411e1bfb
AM		 1744 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1745 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1746 16, /* rightshift */
5bd4f169
AM		 1747 1, /* size (0 = byte, 1 = short, 2 = long) */
1748 16, /* bitsize */
b34976b6 1749 FALSE, /* pc_relative */
5bd4f169
AM		 1750 0, /* bitpos */
1751 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1752 ppc64_elf_unhandled_reloc, /* special_function */
1753 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1754 FALSE, /* partial_inplace */
d006db6c 1755 0, /* src_mask */
411e1bfb 1756 0xffff, /* dst_mask */
b34976b6 1757 FALSE), /* pcrel_offset */
5bd4f169 1758
411e1bfb
AM		 1759 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1760 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1761 16, /* rightshift */
1762 1, /* size (0 = byte, 1 = short, 2 = long) */
1763 16, /* bitsize */
1764 FALSE, /* pc_relative */
1765 0, /* bitpos */
1766 complain_overflow_dont, /* complain_on_overflow */
1767 ppc64_elf_unhandled_reloc, /* special_function */
1768 "R_PPC64_GOT_DTPREL16_HA", /* name */
1769 FALSE, /* partial_inplace */
1770 0, /* src_mask */
1771 0xffff, /* dst_mask */
1772 FALSE), /* pcrel_offset */
1773
1774 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1775 offset to the entry relative to the TOC base (r2). */
1776 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1777 0, /* rightshift */
1778 1, /* size (0 = byte, 1 = short, 2 = long) */
1779 16, /* bitsize */
b34976b6 1780 FALSE, /* pc_relative */
5bd4f169
AM		 1781 0, /* bitpos */
1782 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1783 ppc64_elf_unhandled_reloc, /* special_function */
1784 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1785 FALSE, /* partial_inplace */
d006db6c 1786 0, /* src_mask */
ad8e1ba5 1787 0xfffc, /* dst_mask */
b34976b6 1788 FALSE), /* pcrel_offset */
5bd4f169 1789
411e1bfb
AM		 1790 /* Like GOT_TPREL16_DS, but no overflow. */
1791 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1792 0, /* rightshift */
1793 1, /* size (0 = byte, 1 = short, 2 = long) */
1794 16, /* bitsize */
b34976b6 1795 FALSE, /* pc_relative */
5bd4f169
AM		 1796 0, /* bitpos */
1797 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1798 ppc64_elf_unhandled_reloc, /* special_function */
1799 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1800 FALSE, /* partial_inplace */
d006db6c 1801 0, /* src_mask */
ad8e1ba5 1802 0xfffc, /* dst_mask */
b34976b6 1803 FALSE), /* pcrel_offset */
5bd4f169 1804
411e1bfb
AM		 1805 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1806 HOWTO (R_PPC64_GOT_TPREL16_HI,
1807 16, /* rightshift */
5bd4f169
AM		 1808 1, /* size (0 = byte, 1 = short, 2 = long) */
1809 16, /* bitsize */
b34976b6 1810 FALSE, /* pc_relative */
5bd4f169 1811 0, /* bitpos */
411e1bfb 1812 complain_overflow_dont, /* complain_on_overflow */
805fc799 1813 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1814 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1815 FALSE, /* partial_inplace */
d006db6c 1816 0, /* src_mask */
411e1bfb 1817 0xffff, /* dst_mask */
b34976b6 1818 FALSE), /* pcrel_offset */
5bd4f169 1819
411e1bfb
AM		 1820 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1821 HOWTO (R_PPC64_GOT_TPREL16_HA,
1822 16, /* rightshift */
5bd4f169
AM		 1823 1, /* size (0 = byte, 1 = short, 2 = long) */
1824 16, /* bitsize */
b34976b6 1825 FALSE, /* pc_relative */
5bd4f169
AM		 1826 0, /* bitpos */
1827 complain_overflow_dont, /* complain_on_overflow */
805fc799 1828 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1829 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1830 FALSE, /* partial_inplace */
d006db6c 1831 0, /* src_mask */
411e1bfb 1832 0xffff, /* dst_mask */
b34976b6 1833 FALSE), /* pcrel_offset */
5bd4f169
AM		 1834
1835 /* GNU extension to record C++ vtable hierarchy. */
1836 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1837 0, /* rightshift */
1838 0, /* size (0 = byte, 1 = short, 2 = long) */
1839 0, /* bitsize */
b34976b6 1840 FALSE, /* pc_relative */
5bd4f169
AM		 1841 0, /* bitpos */
1842 complain_overflow_dont, /* complain_on_overflow */
1843 NULL, /* special_function */
1844 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1845 FALSE, /* partial_inplace */
5bd4f169
AM		 1846 0, /* src_mask */
1847 0, /* dst_mask */
b34976b6 1848 FALSE), /* pcrel_offset */
5bd4f169
AM		 1849
1850 /* GNU extension to record C++ vtable member usage. */
1851 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1852 0, /* rightshift */
1853 0, /* size (0 = byte, 1 = short, 2 = long) */
1854 0, /* bitsize */
b34976b6 1855 FALSE, /* pc_relative */
5bd4f169
AM		 1856 0, /* bitpos */
1857 complain_overflow_dont, /* complain_on_overflow */
1858 NULL, /* special_function */
1859 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1860 FALSE, /* partial_inplace */
5bd4f169
AM		 1861 0, /* src_mask */
1862 0, /* dst_mask */
b34976b6 1863 FALSE), /* pcrel_offset */
5bd4f169
AM		 1864};
1865
1866\f
1867/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1868 be done. */
1869
1870static void
4ce794b7 1871ppc_howto_init (void)
5bd4f169
AM		 1872{
1873 unsigned int i, type;
1874
1875 for (i = 0;
1876 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1877 i++)
1878 {
1879 type = ppc64_elf_howto_raw[i].type;
1880 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1881 / sizeof (ppc64_elf_howto_table[0])));
1882 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1883 }
1884}
1885
1886static reloc_howto_type *
4ce794b7
AM		 1887ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1888 bfd_reloc_code_real_type code)
5bd4f169 1889{
411e1bfb 1890 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 1891
1892 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1893 /* Initialize howto table if needed. */
1894 ppc_howto_init ();
1895
4ce794b7 1896 switch (code)
5bd4f169
AM		 1897 {
1898 default:
4ce794b7 1899 return NULL;
5bd4f169 1900
411e1bfb
AM		 1901 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1902 break;
1903 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1904 break;
1905 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1906 break;
1907 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1908 break;
1909 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1910 break;
1911 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1912 break;
1913 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1914 break;
411e1bfb 1915 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1916 break;
411e1bfb 1917 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1918 break;
411e1bfb 1919 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1920 break;
411e1bfb 1921 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1922 break;
411e1bfb 1923 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1924 break;
411e1bfb 1925 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1926 break;
411e1bfb 1927 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1928 break;
411e1bfb 1929 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1930 break;
411e1bfb 1931 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1932 break;
411e1bfb 1933 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1934 break;
411e1bfb 1935 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1936 break;
411e1bfb 1937 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1938 break;
411e1bfb 1939 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1940 break;
411e1bfb 1941 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1942 break;
411e1bfb 1943 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1944 break;
411e1bfb 1945 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1946 break;
411e1bfb 1947 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1948 break;
411e1bfb 1949 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1950 break;
411e1bfb 1951 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1952 break;
411e1bfb 1953 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1954 break;
411e1bfb 1955 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1956 break;
411e1bfb 1957 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1958 break;
411e1bfb 1959 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1960 break;
411e1bfb 1961 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1962 break;
411e1bfb 1963 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1964 break;
411e1bfb 1965 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1966 break;
411e1bfb 1967 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1968 break;
411e1bfb 1969 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1970 break;
411e1bfb 1971 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1972 break;
411e1bfb 1973 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1974 break;
411e1bfb 1975 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1976 break;
411e1bfb 1977 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1978 break;
411e1bfb 1979 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1980 break;
411e1bfb 1981 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1982 break;
411e1bfb 1983 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1984 break;
411e1bfb 1985 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1986 break;
411e1bfb 1987 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1988 break;
411e1bfb 1989 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1990 break;
411e1bfb 1991 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1992 break;
411e1bfb 1993 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1994 break;
411e1bfb 1995 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1996 break;
411e1bfb 1997 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1998 break;
411e1bfb 1999 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 2000 break;
411e1bfb 2001 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 2002 break;
411e1bfb 2003 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 2004 break;
411e1bfb 2005 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 2006 break;
411e1bfb 2007 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 2008 break;
411e1bfb 2009 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 2010 break;
411e1bfb 2011 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 2012 break;
411e1bfb 2013 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2014 break;
411e1bfb 2015 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2016 break;
411e1bfb 2017 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2018 break;
411e1bfb 2019 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2020 break;
411e1bfb 2021 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2022 break;
411e1bfb 2023 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2024 break;
411e1bfb 2025 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2026 break;
411e1bfb 2027 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2028 break;
411e1bfb 2029 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2030 break;
411e1bfb 2031 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2032 break;
411e1bfb
AM		 2033 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2034 break;
2035 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2036 break;
2037 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2038 break;
2039 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2040 break;
2041 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2042 break;
2043 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2044 break;
2045 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2046 break;
2047 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2048 break;
2049 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2050 break;
2051 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2052 break;
2053 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2054 break;
2055 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2056 break;
2057 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2058 break;
2059 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2060 break;
2061 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2062 break;
2063 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2064 break;
2065 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2066 break;
2067 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2068 break;
2069 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2070 break;
2071 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2072 break;
2073 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2074 break;
2075 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2076 break;
2077 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2078 break;
2079 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2080 break;
2081 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2082 break;
2083 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2084 break;
2085 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2086 break;
2087 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2088 break;
2089 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2090 break;
2091 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2092 break;
2093 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2094 break;
2095 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2096 break;
2097 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2098 break;
2099 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2100 break;
2101 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2102 break;
2103 }
2104
4ce794b7 2105 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2106};
2107
2108/* Set the howto pointer for a PowerPC ELF reloc. */
2109
2110static void
4ce794b7
AM		 2111ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2112 Elf_Internal_Rela *dst)
5bd4f169 2113{
65f38f15
AM		 2114 unsigned int type;
2115
ef60b7ff 2116 /* Initialize howto table if needed. */
5bd4f169 2117 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2118 ppc_howto_init ();
2119
65f38f15 2120 type = ELF64_R_TYPE (dst->r_info);
d0fb9a8d
JJ		 2121 if (type >= (sizeof (ppc64_elf_howto_table)
2122 / sizeof (ppc64_elf_howto_table[0])))
2123 {
2124 (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
3ec2b351
NC		 2125 abfd, (int) type);
2126 type = R_PPC64_NONE;
d0fb9a8d 2127 }
65f38f15 2128 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2129}
2130
04c9666a 2131/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2132
2133static bfd_reloc_status_type
4ce794b7
AM		 2134ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2135 void *data, asection *input_section,
2136 bfd *output_bfd, char **error_message)
5bd4f169 2137{
805fc799
AM		 2138 /* If this is a relocatable link (output_bfd test tells us), just
2139 call the generic function. Any adjustment will be done at final
2140 link time. */
2141 if (output_bfd != NULL)
cedb70c5 2142 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2143 input_section, output_bfd, error_message);
2144
2145 /* Adjust the addend for sign extension of the low 16 bits.
2146 We won't actually be using the low 16 bits, so trashing them
2147 doesn't matter. */
2148 reloc_entry->addend += 0x8000;
2149 return bfd_reloc_continue;
2150}
5bd4f169 2151
2441e016
AM		 2152static bfd_reloc_status_type
2153ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2154 void *data, asection *input_section,
2155 bfd *output_bfd, char **error_message)
2156{
2157 if (output_bfd != NULL)
2158 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2159 input_section, output_bfd, error_message);
2160
699733f6
AM		 2161 if (strcmp (symbol->section->name, ".opd") == 0
2162 && (symbol->section->owner->flags & DYNAMIC) == 0)
2441e016
AM		 2163 {
2164 bfd_vma dest = opd_entry_value (symbol->section,
2165 symbol->value + reloc_entry->addend,
2166 NULL, NULL);
2167 if (dest != (bfd_vma) -1)
2168 reloc_entry->addend = dest - (symbol->value
2169 + symbol->section->output_section->vma
2170 + symbol->section->output_offset);
2171 }
2172 return bfd_reloc_continue;
2173}
2174
805fc799 2175static bfd_reloc_status_type
4ce794b7
AM		 2176ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2177 void *data, asection *input_section,
2178 bfd *output_bfd, char **error_message)
805fc799
AM		 2179{
2180 long insn;
04c9666a 2181 enum elf_ppc64_reloc_type r_type;
805fc799
AM		 2182 bfd_size_type octets;
2183 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2184 bfd_boolean is_power4 = FALSE;
805fc799
AM		 2185
2186 /* If this is a relocatable link (output_bfd test tells us), just
2187 call the generic function. Any adjustment will be done at final
2188 link time. */
5bd4f169 2189 if (output_bfd != NULL)
cedb70c5 2190 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2191 input_section, output_bfd, error_message);
2192
2193 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2194 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2195 insn &= ~(0x01 << 21);
4ce794b7 2196 r_type = reloc_entry->howto->type;
805fc799
AM		 2197 if (r_type == R_PPC64_ADDR14_BRTAKEN
2198 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2199 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM		 2200
2201 if (is_power4)
5bd4f169 2202 {
805fc799
AM		 2203 /* Set 'a' bit. This is 0b00010 in BO field for branch
2204 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2205 for branch on CTR insns (BO == 1a00t or 1a01t). */
2206 if ((insn & (0x14 << 21)) == (0x04 << 21))
2207 insn |= 0x02 << 21;
2208 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2209 insn |= 0x08 << 21;
2210 else
2441e016 2211 goto out;
5bd4f169 2212 }
805fc799
AM		 2213 else
2214 {
2215 bfd_vma target = 0;
2216 bfd_vma from;
5bd4f169 2217
805fc799
AM		 2218 if (!bfd_is_com_section (symbol->section))
2219 target = symbol->value;
2220 target += symbol->section->output_section->vma;
2221 target += symbol->section->output_offset;
2222 target += reloc_entry->addend;
5bd4f169 2223
805fc799
AM		 2224 from = (reloc_entry->address
2225 + input_section->output_offset
2226 + input_section->output_section->vma);
5bd4f169 2227
805fc799
AM		 2228 /* Invert 'y' bit if not the default. */
2229 if ((bfd_signed_vma) (target - from) < 0)
2230 insn ^= 0x01 << 21;
2231 }
4ce794b7 2232 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
2441e016
AM		 2233 out:
2234 return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data,
2235 input_section, output_bfd, error_message);
805fc799 2236}
5bd4f169 2237
805fc799 2238static bfd_reloc_status_type
4ce794b7
AM		 2239ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2240 void *data, asection *input_section,
2241 bfd *output_bfd, char **error_message)
805fc799
AM		 2242{
2243 /* If this is a relocatable link (output_bfd test tells us), just
2244 call the generic function. Any adjustment will be done at final
2245 link time. */
2246 if (output_bfd != NULL)
cedb70c5 2247 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2248 input_section, output_bfd, error_message);
5bd4f169 2249
805fc799
AM		 2250 /* Subtract the symbol section base address. */
2251 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2252 return bfd_reloc_continue;
2253}
2254
805fc799 2255static bfd_reloc_status_type
4ce794b7
AM		 2256ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2257 void *data, asection *input_section,
2258 bfd *output_bfd, char **error_message)
805fc799
AM		 2259{
2260 /* If this is a relocatable link (output_bfd test tells us), just
2261 call the generic function. Any adjustment will be done at final
2262 link time. */
2263 if (output_bfd != NULL)
cedb70c5 2264 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2265 input_section, output_bfd, error_message);
2266
2267 /* Subtract the symbol section base address. */
2268 reloc_entry->addend -= symbol->section->output_section->vma;
2269
2270 /* Adjust the addend for sign extension of the low 16 bits. */
2271 reloc_entry->addend += 0x8000;
2272 return bfd_reloc_continue;
2273}
2274
2275static bfd_reloc_status_type
4ce794b7
AM		 2276ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2277 void *data, asection *input_section,
2278 bfd *output_bfd, char **error_message)
805fc799
AM		 2279{
2280 bfd_vma TOCstart;
2281
2282 /* If this is a relocatable link (output_bfd test tells us), just
2283 call the generic function. Any adjustment will be done at final
2284 link time. */
2285 if (output_bfd != NULL)
cedb70c5 2286 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2287 input_section, output_bfd, error_message);
2288
2289 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2290 if (TOCstart == 0)
2291 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2292
2293 /* Subtract the TOC base address. */
2294 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2295 return bfd_reloc_continue;
2296}
2297
2298static bfd_reloc_status_type
4ce794b7
AM		 2299ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2300 void *data, asection *input_section,
2301 bfd *output_bfd, char **error_message)
805fc799
AM		 2302{
2303 bfd_vma TOCstart;
2304
2305 /* If this is a relocatable link (output_bfd test tells us), just
2306 call the generic function. Any adjustment will be done at final
2307 link time. */
2308 if (output_bfd != NULL)
cedb70c5 2309 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2310 input_section, output_bfd, error_message);
2311
2312 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2313 if (TOCstart == 0)
2314 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2315
2316 /* Subtract the TOC base address. */
2317 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2318
2319 /* Adjust the addend for sign extension of the low 16 bits. */
2320 reloc_entry->addend += 0x8000;
2321 return bfd_reloc_continue;
2322}
2323
2324static bfd_reloc_status_type
4ce794b7
AM		 2325ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2326 void *data, asection *input_section,
2327 bfd *output_bfd, char **error_message)
805fc799
AM		 2328{
2329 bfd_vma TOCstart;
2330 bfd_size_type octets;
2331
2332 /* If this is a relocatable link (output_bfd test tells us), just
2333 call the generic function. Any adjustment will be done at final
2334 link time. */
2335 if (output_bfd != NULL)
cedb70c5 2336 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2337 input_section, output_bfd, error_message);
2338
2339 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2340 if (TOCstart == 0)
2341 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2342
2343 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2344 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2345 return bfd_reloc_ok;
2346}
2347
2348static bfd_reloc_status_type
4ce794b7
AM		 2349ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2350 void *data, asection *input_section,
2351 bfd *output_bfd, char **error_message)
805fc799
AM		 2352{
2353 /* If this is a relocatable link (output_bfd test tells us), just
2354 call the generic function. Any adjustment will be done at final
2355 link time. */
2356 if (output_bfd != NULL)
cedb70c5 2357 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2358 input_section, output_bfd, error_message);
2359
2360 if (error_message != NULL)
2361 {
2362 static char buf[60];
2363 sprintf (buf, "generic linker can't handle %s",
2364 reloc_entry->howto->name);
2365 *error_message = buf;
2366 }
2367 return bfd_reloc_dangerous;
2368}
2369
e717da7e
AM		 2370struct ppc64_elf_obj_tdata
2371{
2372 struct elf_obj_tdata elf;
2373
2374 /* Shortcuts to dynamic linker sections. */
2375 asection *got;
2376 asection *relgot;
2377
433817dd
AM		 2378 union {
2379 /* Used during garbage collection. We attach global symbols defined
2380 on removed .opd entries to this section so that the sym is removed. */
2381 asection *deleted_section;
2382
2383 /* Used when adding symbols. */
2384 bfd_boolean has_dotsym;
2385 } u;
81688140 2386
e717da7e
AM		 2387 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2388 sections means we potentially need one of these for each input bfd. */
2389 union {
2390 bfd_signed_vma refcount;
2391 bfd_vma offset;
2392 } tlsld_got;
8860955f
AM		 2393
2394 /* A copy of relocs before they are modified for --emit-relocs. */
2395 Elf_Internal_Rela *opd_relocs;
e717da7e
AM		 2396};
2397
2398#define ppc64_elf_tdata(bfd) \
2399 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2400
2401#define ppc64_tlsld_got(bfd) \
2402 (&ppc64_elf_tdata (bfd)->tlsld_got)
2403
2404/* Override the generic function because we store some extras. */
2405
2406static bfd_boolean
2407ppc64_elf_mkobject (bfd *abfd)
2408{
2409 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2410 abfd->tdata.any = bfd_zalloc (abfd, amt);
2411 if (abfd->tdata.any == NULL)
2412 return FALSE;
2413 return TRUE;
2414}
2415
ee75fd95
AM		 2416/* Return 1 if target is one of ours. */
2417
7b53ace3 2418static bfd_boolean
ee75fd95 2419is_ppc64_elf_target (const struct bfd_target *targ)
7b53ace3
AM		 2420{
2421 extern const bfd_target bfd_elf64_powerpc_vec;
2422 extern const bfd_target bfd_elf64_powerpcle_vec;
2423
2424 return targ == &bfd_elf64_powerpc_vec || targ == &bfd_elf64_powerpcle_vec;
2425}
2426
feee612b
AM		 2427/* Fix bad default arch selected for a 64 bit input bfd when the
2428 default is 32 bit. */
2429
b34976b6 2430static bfd_boolean
4ce794b7 2431ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2432{
2433 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2434 {
2435 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2436
2437 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2438 {
2439 /* Relies on arch after 32 bit default being 64 bit default. */
2440 abfd->arch_info = abfd->arch_info->next;
2441 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2442 }
2443 }
b34976b6 2444 return TRUE;
feee612b
AM		 2445}
2446
d37c89e5
AM		 2447/* Support for core dump NOTE sections. */
2448
2449static bfd_boolean
2450ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2451{
eea6121a 2452 size_t offset, size;
d37c89e5
AM		 2453
2454 if (note->descsz != 504)
2455 return FALSE;
2456
2457 /* pr_cursig */
2458 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2459
2460 /* pr_pid */
2461 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2462
2463 /* pr_reg */
2464 offset = 112;
eea6121a 2465 size = 384;
d37c89e5
AM		 2466
2467 /* Make a ".reg/999" section. */
2468 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2469 size, note->descpos + offset);
d37c89e5
AM		 2470}
2471
2472static bfd_boolean
2473ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2474{
2475 if (note->descsz != 136)
2476 return FALSE;
2477
2478 elf_tdata (abfd)->core_program
2479 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2480 elf_tdata (abfd)->core_command
2481 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2482
2483 return TRUE;
2484}
2485
5bd4f169
AM		 2486/* Merge backend specific data from an object file to the output
2487 object file when linking. */
2f6d9989 2488
b34976b6 2489static bfd_boolean
4ce794b7 2490ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2491{
5bd4f169
AM		 2492 /* Check if we have the same endianess. */
2493 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2494 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM		 2495 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2496 {
2497 const char *msg;
2498
2499 if (bfd_big_endian (ibfd))
d003868e 2500 msg = _("%B: compiled for a big endian system "
4ce794b7 2501 "and target is little endian");
5bd4f169 2502 else
d003868e 2503 msg = _("%B: compiled for a little endian system "
4ce794b7 2504 "and target is big endian");
5bd4f169 2505
d003868e 2506 (*_bfd_error_handler) (msg, ibfd);
5bd4f169
AM		 2507
2508 bfd_set_error (bfd_error_wrong_format);
b34976b6 2509 return FALSE;
5bd4f169
AM		 2510 }
2511
b34976b6 2512 return TRUE;
5bd4f169 2513}
f0abc2a1 2514
5d35169e
AM		 2515/* Add extra PPC sections. */
2516
b35d266b 2517static const struct bfd_elf_special_section ppc64_elf_special_sections[]=
7f4d3958
L		 2518{
2519 { ".plt", 4, 0, SHT_NOBITS, 0 },
7dcb9820 2520 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
551b43fd 2521 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
7dcb9820
AM		 2522 { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2523 { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2524 { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2525 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 2526};
2527
f0abc2a1
AM		 2528struct _ppc64_elf_section_data
2529{
2530 struct bfd_elf_section_data elf;
411e1bfb
AM		 2531
2532 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM		 2533 union
2534 {
411e1bfb 2535 /* Points to the function code section for local opd entries. */
f0abc2a1 2536 asection **func_sec;
411e1bfb 2537 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM		 2538 long *adjust;
2539 } opd;
411e1bfb
AM		 2540
2541 /* An array for toc sections, indexed by offset/8.
2542 Specifies the relocation symbol index used at a given toc offset. */
2543 unsigned *t_symndx;
f0abc2a1
AM		 2544};
2545
2546#define ppc64_elf_section_data(sec) \
411e1bfb 2547 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2548
2549static bfd_boolean
4ce794b7 2550ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1
AM		 2551{
2552 struct _ppc64_elf_section_data *sdata;
2553 bfd_size_type amt = sizeof (*sdata);
2554
4ce794b7 2555 sdata = bfd_zalloc (abfd, amt);
f0abc2a1
AM		 2556 if (sdata == NULL)
2557 return FALSE;
4ce794b7 2558 sec->used_by_bfd = sdata;
f0abc2a1
AM		 2559
2560 return _bfd_elf_new_section_hook (abfd, sec);
2561}
4025353c
AM		 2562
2563static void *
2564get_opd_info (asection * sec)
2565{
2566 if (sec != NULL
2567 && ppc64_elf_section_data (sec) != NULL
2568 && ppc64_elf_section_data (sec)->opd.adjust != NULL)
2569 return ppc64_elf_section_data (sec)->opd.adjust;
2570 return NULL;
2571}
90e3cdf2
JJ		 2572\f
2573/* Parameters for the qsort hook. */
2574static asection *synthetic_opd;
2575static bfd_boolean synthetic_relocatable;
2576
699733f6 2577/* qsort comparison function for ppc64_elf_get_synthetic_symtab. */
90e3cdf2
JJ		 2578
2579static int
2580compare_symbols (const void *ap, const void *bp)
2581{
2582 const asymbol *a = * (const asymbol **) ap;
2583 const asymbol *b = * (const asymbol **) bp;
2584
699733f6
AM		 2585 /* Section symbols first. */
2586 if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM))
90e3cdf2 2587 return -1;
699733f6 2588 if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM))
90e3cdf2
JJ		 2589 return 1;
2590
699733f6 2591 /* then .opd symbols. */
90e3cdf2
JJ		 2592 if (a->section == synthetic_opd && b->section != synthetic_opd)
2593 return -1;
2594 if (a->section != synthetic_opd && b->section == synthetic_opd)
2595 return 1;
2596
699733f6 2597 /* then other code symbols. */
90e3cdf2
JJ		 2598 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2599 == (SEC_CODE | SEC_ALLOC)
2600 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2601 != (SEC_CODE | SEC_ALLOC))
2602 return -1;
2603
2604 if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2605 != (SEC_CODE | SEC_ALLOC)
2606 && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2607 == (SEC_CODE | SEC_ALLOC))
2608 return 1;
2609
2610 if (synthetic_relocatable)
2611 {
2612 if (a->section->id < b->section->id)
2613 return -1;
2614
2615 if (a->section->id > b->section->id)
2616 return 1;
2617 }
2618
2619 if (a->value + a->section->vma < b->value + b->section->vma)
2620 return -1;
2621
2622 if (a->value + a->section->vma > b->value + b->section->vma)
2623 return 1;
2624
2625 return 0;
2626}
2627
699733f6 2628/* Search SYMS for a symbol of the given VALUE. */
90e3cdf2 2629
699733f6
AM		 2630static asymbol *
2631sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value)
90e3cdf2 2632{
699733f6 2633 long mid;
90e3cdf2 2634
699733f6
AM		 2635 if (id == -1)
2636 {
2637 while (lo < hi)
2638 {
2639 mid = (lo + hi) >> 1;
2640 if (syms[mid]->value + syms[mid]->section->vma < value)
2641 lo = mid + 1;
2642 else if (syms[mid]->value + syms[mid]->section->vma > value)
2643 hi = mid;
2644 else
2645 return syms[mid];
2646 }
2647 }
2648 else
2649 {
2650 while (lo < hi)
2651 {
2652 mid = (lo + hi) >> 1;
2653 if (syms[mid]->section->id < id)
2654 lo = mid + 1;
2655 else if (syms[mid]->section->id > id)
2656 hi = mid;
2657 else if (syms[mid]->value < value)
2658 lo = mid + 1;
2659 else if (syms[mid]->value > value)
2660 hi = mid;
2661 else
2662 return syms[mid];
2663 }
2664 }
2665 return NULL;
90e3cdf2
JJ		 2666}
2667
699733f6
AM		 2668/* Create synthetic symbols, effectively restoring "dot-symbol" function
2669 entry syms. */
90e3cdf2
JJ		 2670
2671static long
a7535cf3
AM		 2672ppc64_elf_get_synthetic_symtab (bfd *abfd,
2673 long static_count, asymbol **static_syms,
2674 long dyn_count, asymbol **dyn_syms,
c9727e01 2675 asymbol **ret)
90e3cdf2
JJ		 2676{
2677 asymbol *s;
699733f6
AM		 2678 long i;
2679 long count;
90e3cdf2 2680 char *names;
a7535cf3 2681 long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
699733f6 2682 asection *opd;
90e3cdf2 2683 bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
a7535cf3 2684 asymbol **syms;
90e3cdf2
JJ		 2685
2686 *ret = NULL;
2687
2688 opd = bfd_get_section_by_name (abfd, ".opd");
2689 if (opd == NULL)
2690 return 0;
2691
a7535cf3 2692 symcount = static_count;
c9727e01 2693 if (!relocatable)
a7535cf3 2694 symcount += dyn_count;
90e3cdf2 2695 if (symcount == 0)
c9727e01 2696 return 0;
90e3cdf2 2697
a7535cf3
AM		 2698 syms = bfd_malloc ((symcount + 1) * sizeof (*syms));
2699 if (syms == NULL)
7356fed5 2700 return -1;
a7535cf3
AM		 2701
2702 if (!relocatable && static_count != 0 && dyn_count != 0)
2703 {
2704 /* Use both symbol tables. */
2705 memcpy (syms, static_syms, static_count * sizeof (*syms));
2706 memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms));
2707 }
2708 else if (!relocatable && static_count == 0)
2709 memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms));
2710 else
2711 memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms));
2712
90e3cdf2
JJ		 2713 synthetic_opd = opd;
2714 synthetic_relocatable = relocatable;
595da8c5 2715 qsort (syms, symcount, sizeof (*syms), compare_symbols);
90e3cdf2 2716
c9727e01
AM		 2717 if (!relocatable && symcount > 1)
2718 {
2719 long j;
2720 /* Trim duplicate syms, since we may have merged the normal and
2721 dynamic symbols. Actually, we only care about syms that have
3b36f7e6 2722 different values, so trim any with the same value. */
c9727e01
AM		 2723 for (i = 1, j = 1; i < symcount; ++i)
2724 if (syms[i - 1]->value + syms[i - 1]->section->vma
2725 != syms[i]->value + syms[i]->section->vma)
2726 syms[j++] = syms[i];
2727 symcount = j;
2728 }
2729
699733f6
AM		 2730 i = 0;
2731 if (syms[i]->section == opd)
2732 ++i;
2733 codesecsym = i;
90e3cdf2 2734
699733f6
AM		 2735 for (; i < symcount; ++i)
2736 if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2737 != (SEC_CODE | SEC_ALLOC))
2738 || (syms[i]->flags & BSF_SECTION_SYM) == 0)
2739 break;
2740 codesecsymend = i;
90e3cdf2 2741
699733f6
AM		 2742 for (; i < symcount; ++i)
2743 if ((syms[i]->flags & BSF_SECTION_SYM) == 0)
2744 break;
2745 secsymend = i;
90e3cdf2 2746
699733f6
AM		 2747 for (; i < symcount; ++i)
2748 if (syms[i]->section != opd)
2749 break;
2750 opdsymend = i;
90e3cdf2 2751
699733f6
AM		 2752 for (; i < symcount; ++i)
2753 if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL))
2754 != (SEC_CODE | SEC_ALLOC))
2755 break;
2756 symcount = i;
2757
c9727e01 2758 count = 0;
699733f6 2759 if (opdsymend == secsymend)
c9727e01 2760 goto done;
90e3cdf2 2761
699733f6 2762 if (relocatable)
90e3cdf2 2763 {
699733f6
AM		 2764 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2765 arelent *r;
2766 size_t size;
2767 long relcount;
90e3cdf2 2768
699733f6 2769 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
90e3cdf2 2770 relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0;
7356fed5 2771 if (relcount == 0)
c9727e01 2772 goto done;
90e3cdf2 2773
7356fed5
AM		 2774 if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE))
2775 {
2776 count = -1;
2777 goto done;
2778 }
2779
699733f6 2780 size = 0;
595da8c5 2781 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
699733f6
AM		 2782 {
2783 asymbol *sym;
90e3cdf2 2784
595da8c5 2785 while (r < opd->relocation + relcount
699733f6
AM		 2786 && r->address < syms[i]->value + opd->vma)
2787 ++r;
90e3cdf2 2788
595da8c5 2789 if (r == opd->relocation + relcount)
699733f6 2790 break;
90e3cdf2 2791
699733f6
AM		 2792 if (r->address != syms[i]->value + opd->vma)
2793 continue;
90e3cdf2 2794
699733f6
AM		 2795 if (r->howto->type != R_PPC64_ADDR64)
2796 continue;
90e3cdf2 2797
699733f6
AM		 2798 sym = *r->sym_ptr_ptr;
2799 if (!sym_exists_at (syms, opdsymend, symcount,
2800 sym->section->id, sym->value + r->addend))
2801 {
2802 ++count;
2803 size += sizeof (asymbol);
2804 size += strlen (syms[i]->name) + 2;
2805 }
2806 }
90e3cdf2 2807
699733f6
AM		 2808 s = *ret = bfd_malloc (size);
2809 if (s == NULL)
2810 {
7356fed5 2811 count = -1;
c9727e01 2812 goto done;
699733f6 2813 }
90e3cdf2 2814
699733f6 2815 names = (char *) (s + count);
90e3cdf2 2816
595da8c5 2817 for (i = secsymend, r = opd->relocation; i < opdsymend; ++i)
90e3cdf2 2818 {
699733f6 2819 asymbol *sym;
90e3cdf2 2820
595da8c5 2821 while (r < opd->relocation + relcount
699733f6
AM		 2822 && r->address < syms[i]->value + opd->vma)
2823 ++r;
90e3cdf2 2824
595da8c5 2825 if (r == opd->relocation + relcount)
699733f6
AM		 2826 break;
2827
2828 if (r->address != syms[i]->value + opd->vma)
2829 continue;
2830
2831 if (r->howto->type != R_PPC64_ADDR64)
2832 continue;
90e3cdf2 2833
699733f6
AM		 2834 sym = *r->sym_ptr_ptr;
2835 if (!sym_exists_at (syms, opdsymend, symcount,
2836 sym->section->id, sym->value + r->addend))
2837 {
2838 size_t len;
2839
2840 *s = *syms[i];
2841 s->section = sym->section;
2842 s->value = sym->value + r->addend;
2843 s->name = names;
2844 *names++ = '.';
2845 len = strlen (syms[i]->name);
2846 memcpy (names, syms[i]->name, len + 1);
2847 names += len + 1;
2848 s++;
2849 }
2850 }
2851 }
2852 else
90e3cdf2 2853 {
699733f6
AM		 2854 bfd_byte *contents;
2855 size_t size;
90e3cdf2 2856
699733f6
AM		 2857 if (!bfd_malloc_and_get_section (abfd, opd, &contents))
2858 {
2859 if (contents)
c9727e01
AM		 2860 {
2861 free_contents_and_exit:
2862 free (contents);
2863 }
7356fed5 2864 count = -1;
c9727e01 2865 goto done;
699733f6 2866 }
90e3cdf2 2867
699733f6
AM		 2868 size = 0;
2869 for (i = secsymend; i < opdsymend; ++i)
2870 {
2871 bfd_vma ent;
90e3cdf2 2872
699733f6
AM		 2873 ent = bfd_get_64 (abfd, contents + syms[i]->value);
2874 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
2875 {
2876 ++count;
2877 size += sizeof (asymbol);
2878 size += strlen (syms[i]->name) + 2;
2879 }
2880 }
90e3cdf2 2881
699733f6
AM		 2882 s = *ret = bfd_malloc (size);
2883 if (s == NULL)
7356fed5 2884 goto free_contents_and_exit;
90e3cdf2 2885
699733f6 2886 names = (char *) (s + count);
90e3cdf2 2887
699733f6 2888 for (i = secsymend; i < opdsymend; ++i)
90e3cdf2 2889 {
699733f6 2890 bfd_vma ent;
90e3cdf2 2891
699733f6
AM		 2892 ent = bfd_get_64 (abfd, contents + syms[i]->value);
2893 if (!sym_exists_at (syms, opdsymend, symcount, -1, ent))
90e3cdf2 2894 {
c9727e01 2895 long lo, hi;
699733f6 2896 size_t len;
c9727e01 2897 asection *sec = abfd->sections;
90e3cdf2 2898
699733f6
AM		 2899 *s = *syms[i];
2900 lo = codesecsym;
2901 hi = codesecsymend;
2902 while (lo < hi)
2903 {
c9727e01 2904 long mid = (lo + hi) >> 1;
699733f6
AM		 2905 if (syms[mid]->section->vma < ent)
2906 lo = mid + 1;
2907 else if (syms[mid]->section->vma > ent)
2908 hi = mid;
2909 else
c9727e01
AM		 2910 {
2911 sec = syms[mid]->section;
2912 break;
2913 }
699733f6
AM		 2914 }
2915
c9727e01 2916 if (lo >= hi && lo > codesecsym)
699733f6 2917 sec = syms[lo - 1]->section;
699733f6
AM		 2918
2919 for (; sec != NULL; sec = sec->next)
2920 {
2921 if (sec->vma > ent)
2922 break;
2923 if ((sec->flags & SEC_ALLOC) == 0
2924 || (sec->flags & SEC_LOAD) == 0)
2925 break;
2926 if ((sec->flags & SEC_CODE) != 0)
2927 s->section = sec;
2928 }
2929 s->value = ent - s->section->vma;
2930 s->name = names;
2931 *names++ = '.';
2932 len = strlen (syms[i]->name);
2933 memcpy (names, syms[i]->name, len + 1);
2934 names += len + 1;
2935 s++;
90e3cdf2 2936 }
90e3cdf2 2937 }
699733f6 2938 free (contents);
90e3cdf2
JJ		 2939 }
2940
c9727e01 2941 done:
a7535cf3 2942 free (syms);
90e3cdf2
JJ		 2943 return count;
2944}
5bd4f169 2945\f
65f38f15
AM		 2946/* The following functions are specific to the ELF linker, while
2947 functions above are used generally. Those named ppc64_elf_* are
2948 called by the main ELF linker code. They appear in this file more
2949 or less in the order in which they are called. eg.
2950 ppc64_elf_check_relocs is called early in the link process,
2951 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 2952 called.
2953
2954 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2955 functions have both a function code symbol and a function descriptor
2956 symbol. A call to foo in a relocatable object file looks like:
2957
2958 . .text
2959 . x:
2960 . bl .foo
2961 . nop
2962
2963 The function definition in another object file might be:
2964
2965 . .section .opd
2966 . foo: .quad .foo
2967 . .quad .TOC.@tocbase
2968 . .quad 0
2969 .
2970 . .text
2971 . .foo: blr
2972
2973 When the linker resolves the call during a static link, the branch
2974 unsurprisingly just goes to .foo and the .opd information is unused.
2975 If the function definition is in a shared library, things are a little
2976 different: The call goes via a plt call stub, the opd information gets
2977 copied to the plt, and the linker patches the nop.
2978
2979 . x:
2980 . bl .foo_stub
2981 . ld 2,40(1)
2982 .
2983 .
2984 . .foo_stub:
2985 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2986 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM		 2987 . std 2,40(1) # this is the general idea
2988 . ld 11,0(12)
2989 . ld 2,8(12)
2990 . mtctr 11
2991 . ld 11,16(12)
2992 . bctr
2993 .
2994 . .section .plt
2995 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2996
2997 The "reloc ()" notation is supposed to indicate that the linker emits
2998 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2999 copying.
3000
3001 What are the difficulties here? Well, firstly, the relocations
3002 examined by the linker in check_relocs are against the function code
3003 sym .foo, while the dynamic relocation in the plt is emitted against
3004 the function descriptor symbol, foo. Somewhere along the line, we need
3005 to carefully copy dynamic link information from one symbol to the other.
3006 Secondly, the generic part of the elf linker will make .foo a dynamic
3007 symbol as is normal for most other backends. We need foo dynamic
3008 instead, at least for an application final link. However, when
3009 creating a shared library containing foo, we need to have both symbols
3010 dynamic so that references to .foo are satisfied during the early
3011 stages of linking. Otherwise the linker might decide to pull in a
8387904d
AM		 3012 definition from some other object, eg. a static library.
3013
3014 Update: As of August 2004, we support a new convention. Function
3015 calls may use the function descriptor symbol, ie. "bl foo". This
3016 behaves exactly as "bl .foo". */
65f38f15
AM		 3017
3018/* The linker needs to keep track of the number of relocs that it
3019 decides to copy as dynamic relocs in check_relocs for each symbol.
3020 This is so that it can later discard them if they are found to be
3021 unnecessary. We store the information in a field extending the
3022 regular ELF linker hash table. */
3023
3024struct ppc_dyn_relocs
3025{
3026 struct ppc_dyn_relocs *next;
3027
3028 /* The input section of the reloc. */
3029 asection *sec;
3030
3031 /* Total number of relocs copied for the input section. */
3032 bfd_size_type count;
3033
3034 /* Number of pc-relative relocs copied for the input section. */
3035 bfd_size_type pc_count;
3036};
3037
411e1bfb
AM		 3038/* Track GOT entries needed for a given symbol. We might need more
3039 than one got entry per symbol. */
3040struct got_entry
3041{
3042 struct got_entry *next;
3043
e7b938ca 3044 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM		 3045 bfd_vma addend;
3046
e717da7e
AM		 3047 /* Unlike other ELF targets, we use separate GOT entries for the same
3048 symbol referenced from different input files. This is to support
3049 automatic multiple TOC/GOT sections, where the TOC base can vary
3050 from one input file to another.
3051
3052 Point to the BFD owning this GOT entry. */
3053 bfd *owner;
3054
3055 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
3056 TLS_TPREL or TLS_DTPREL for tls entries. */
3057 char tls_type;
3058
e7b938ca 3059 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM		 3060 union
3061 {
3062 bfd_signed_vma refcount;
3063 bfd_vma offset;
3064 } got;
411e1bfb
AM		 3065};
3066
3067/* The same for PLT. */
3068struct plt_entry
3069{
3070 struct plt_entry *next;
3071
3072 bfd_vma addend;
3073
3074 union
3075 {
3076 bfd_signed_vma refcount;
3077 bfd_vma offset;
3078 } plt;
3079};
3080
65f38f15 3081/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM		 3082 selects those that must be copied when linking a shared library,
3083 even when the symbol is local. */
65f38f15 3084
411e1bfb 3085#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM		 3086 ((RTYPE) != R_PPC64_REL32 \
3087 && (RTYPE) != R_PPC64_REL64 \
04c9666a 3088 && (RTYPE) != R_PPC64_REL30)
65f38f15 3089
f4656909
AM		 3090/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
3091 copying dynamic variables from a shared lib into an app's dynbss
3092 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 3093 shared lib. With code that gcc generates, it's vital that this be
3094 enabled; In the PowerPC64 ABI, the address of a function is actually
3095 the address of a function descriptor, which resides in the .opd
3096 section. gcc uses the descriptor directly rather than going via the
3097 GOT as some other ABI's do, which means that initialized function
3098 pointers must reference the descriptor. Thus, a function pointer
3099 initialized to the address of a function in a shared library will
3100 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 3101 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM		 3102 presents a problem as a plt entry for that function is also
3103 initialized from the function descriptor symbol and the copy reloc
3104 may not be initialized first. */
a23b6845 3105#define ELIMINATE_COPY_RELOCS 1
f4656909 3106
721956f4
AM		 3107/* Section name for stubs is the associated section name plus this
3108 string. */
3109#define STUB_SUFFIX ".stub"
3110
3111/* Linker stubs.
3112 ppc_stub_long_branch:
3113 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
3114 destination, but a 24 bit branch in a stub section will reach.
3115 . b dest
3116
3117 ppc_stub_plt_branch:
3118 Similar to the above, but a 24 bit branch in the stub section won't
3119 reach its destination.
87e226ce
AM		 3120 . addis %r12,%r2,xxx@toc@ha
3121 . ld %r11,xxx@toc@l(%r12)
721956f4
AM		 3122 . mtctr %r11
3123 . bctr
3124
3125 ppc_stub_plt_call:
2c66dc6c
AM		 3126 Used to call a function in a shared library. If it so happens that
3127 the plt entry referenced crosses a 64k boundary, then an extra
3128 "addis %r12,%r12,1" will be inserted before the load at xxx+8 or
3129 xxx+16 as appropriate.
87e226ce 3130 . addis %r12,%r2,xxx@toc@ha
721956f4 3131 . std %r2,40(%r1)
87e226ce
AM		 3132 . ld %r11,xxx+0@toc@l(%r12)
3133 . ld %r2,xxx+8@toc@l(%r12)
721956f4 3134 . mtctr %r11
87e226ce 3135 . ld %r11,xxx+16@toc@l(%r12)
721956f4 3136 . bctr
ad8e1ba5
AM		 3137
3138 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
3139 code to adjust the value and save r2 to support multiple toc sections.
3140 A ppc_stub_long_branch with an r2 offset looks like:
3141 . std %r2,40(%r1)
3142 . addis %r2,%r2,off@ha
3143 . addi %r2,%r2,off@l
3144 . b dest
3145
3146 A ppc_stub_plt_branch with an r2 offset looks like:
3147 . std %r2,40(%r1)
3148 . addis %r12,%r2,xxx@toc@ha
3149 . ld %r11,xxx@toc@l(%r12)
3150 . addis %r2,%r2,off@ha
3151 . addi %r2,%r2,off@l
3152 . mtctr %r11
3153 . bctr
721956f4
AM		 3154*/
3155
3156enum ppc_stub_type {
3157 ppc_stub_none,
3158 ppc_stub_long_branch,
ad8e1ba5 3159 ppc_stub_long_branch_r2off,
721956f4 3160 ppc_stub_plt_branch,
ad8e1ba5 3161 ppc_stub_plt_branch_r2off,
721956f4
AM		 3162 ppc_stub_plt_call
3163};
3164
3165struct ppc_stub_hash_entry {
3166
3167 /* Base hash table entry structure. */
3168 struct bfd_hash_entry root;
3169
ad8e1ba5
AM		 3170 enum ppc_stub_type stub_type;
3171
721956f4
AM		 3172 /* The stub section. */
3173 asection *stub_sec;
3174
3175 /* Offset within stub_sec of the beginning of this stub. */
3176 bfd_vma stub_offset;
3177
3178 /* Given the symbol's value and its section we can determine its final
3179 value when building the stubs (so the stub knows where to jump. */
3180 bfd_vma target_value;
3181 asection *target_section;
3182
721956f4
AM		 3183 /* The symbol table entry, if any, that this was derived from. */
3184 struct ppc_link_hash_entry *h;
3185
411e1bfb
AM		 3186 /* And the reloc addend that this was derived from. */
3187 bfd_vma addend;
3188
721956f4
AM		 3189 /* Where this stub is being called from, or, in the case of combined
3190 stub sections, the first input section in the group. */
3191 asection *id_sec;
3192};
3193
3194struct ppc_branch_hash_entry {
3195
3196 /* Base hash table entry structure. */
3197 struct bfd_hash_entry root;
3198
c456f082 3199 /* Offset within branch lookup table. */
721956f4
AM		 3200 unsigned int offset;
3201
3202 /* Generation marker. */
3203 unsigned int iter;
3204};
65f38f15
AM		 3205
3206struct ppc_link_hash_entry
3207{
3208 struct elf_link_hash_entry elf;
3209
721956f4
AM		 3210 /* A pointer to the most recently used stub hash entry against this
3211 symbol. */
3212 struct ppc_stub_hash_entry *stub_cache;
3213
65f38f15
AM		 3214 /* Track dynamic relocs copied for this symbol. */
3215 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 3216
721956f4 3217 /* Link between function code and descriptor symbols. */
34814b9f 3218 struct ppc_link_hash_entry *oh;
721956f4 3219
e86ce104
AM		 3220 /* Flag function code and descriptor symbols. */
3221 unsigned int is_func:1;
3222 unsigned int is_func_descriptor:1;
908b32fc 3223 unsigned int fake:1;
411e1bfb 3224
c5614fa4
AM		 3225 /* Whether global opd/toc sym has been adjusted or not.
3226 After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag
3227 should be set for all globals defined in any opd/toc section. */
754021d0
AM		 3228 unsigned int adjust_done:1;
3229
99877b66
AM		 3230 /* Set if we twiddled this symbol to weak at some stage. */
3231 unsigned int was_undefined:1;
3232
411e1bfb 3233 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 3234 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
3235 corresponding relocs are encountered during check_relocs.
3236 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
3237 indicate the corresponding GOT entry type is not needed.
3238 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
3239 a TPREL one. We use a separate flag rather than setting TPREL
3240 just for convenience in distinguishing the two cases. */
3241#define TLS_GD 1 /* GD reloc. */
3242#define TLS_LD 2 /* LD reloc. */
3243#define TLS_TPREL 4 /* TPREL reloc, => IE. */
3244#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
3245#define TLS_TLS 16 /* Any TLS reloc. */
3246#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
3247#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
3248 char tls_mask;
65f38f15
AM		 3249};
3250
3251/* ppc64 ELF linker hash table. */
3252
3253struct ppc_link_hash_table
3254{
3255 struct elf_link_hash_table elf;
3256
721956f4
AM		 3257 /* The stub hash table. */
3258 struct bfd_hash_table stub_hash_table;
3259
3260 /* Another hash table for plt_branch stubs. */
3261 struct bfd_hash_table branch_hash_table;
3262
3263 /* Linker stub bfd. */
3264 bfd *stub_bfd;
3265
3266 /* Linker call-backs. */
4ce794b7
AM		 3267 asection * (*add_stub_section) (const char *, asection *);
3268 void (*layout_sections_again) (void);
721956f4
AM		 3269
3270 /* Array to keep track of which stub sections have been created, and
3271 information on stub grouping. */
3272 struct map_stub {
3273 /* This is the section to which stubs in the group will be attached. */
3274 asection *link_sec;
3275 /* The stub section. */
3276 asection *stub_sec;
ad8e1ba5
AM		 3277 /* Along with elf_gp, specifies the TOC pointer used in this group. */
3278 bfd_vma toc_off;
721956f4
AM		 3279 } *stub_group;
3280
ad8e1ba5
AM		 3281 /* Temp used when calculating TOC pointers. */
3282 bfd_vma toc_curr;
3283
8f3bab57
AM		 3284 /* Highest input section id. */
3285 int top_id;
3286
734b6cf9
AM		 3287 /* Highest output section index. */
3288 int top_index;
3289
3290 /* List of input sections for each output section. */
3291 asection **input_list;
721956f4 3292
65f38f15 3293 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 3294 asection *got;
4ce794b7
AM		 3295 asection *plt;
3296 asection *relplt;
3297 asection *dynbss;
3298 asection *relbss;
3299 asection *glink;
82bd7b59 3300 asection *sfpr;
4ce794b7
AM		 3301 asection *brlt;
3302 asection *relbrlt;
ec338859 3303
8387904d
AM		 3304 /* Shortcut to .__tls_get_addr and __tls_get_addr. */
3305 struct ppc_link_hash_entry *tls_get_addr;
3306 struct ppc_link_hash_entry *tls_get_addr_fd;
411e1bfb 3307
9b5ecbd0
AM		 3308 /* Statistics. */
3309 unsigned long stub_count[ppc_stub_plt_call];
3310
ee75fd95
AM		 3311 /* Number of stubs against global syms. */
3312 unsigned long stub_globals;
3313
ad8e1ba5 3314 /* Set if we should emit symbols for stubs. */
99877b66 3315 unsigned int emit_stub_syms:1;
ad8e1ba5 3316
4c52953f
AM		 3317 /* Support for multiple toc sections. */
3318 unsigned int no_multi_toc:1;
3319 unsigned int multi_toc_needed:1;
3320
5d1634d7 3321 /* Set on error. */
99877b66 3322 unsigned int stub_error:1;
721956f4
AM		 3323
3324 /* Flag set when small branches are detected. Used to
3325 select suitable defaults for the stub group size. */
99877b66
AM		 3326 unsigned int has_14bit_branch:1;
3327
3328 /* Temp used by ppc64_elf_check_directives. */
3329 unsigned int twiddled_syms:1;
721956f4
AM		 3330
3331 /* Incremented every time we size stubs. */
3332 unsigned int stub_iteration;
5d1634d7 3333
ec338859
AM		 3334 /* Small local sym to section mapping cache. */
3335 struct sym_sec_cache sym_sec;
65f38f15
AM		 3336};
3337
4c52953f
AM		 3338/* Rename some of the generic section flags to better document how they
3339 are used here. */
3340#define has_toc_reloc has_gp_reloc
3341#define makes_toc_func_call need_finalize_relax
3342#define call_check_in_progress reloc_done
3343
65f38f15
AM		 3344/* Get the ppc64 ELF linker hash table from a link_info structure. */
3345
3346#define ppc_hash_table(p) \
3347 ((struct ppc_link_hash_table *) ((p)->hash))
3348
721956f4
AM		 3349#define ppc_stub_hash_lookup(table, string, create, copy) \
3350 ((struct ppc_stub_hash_entry *) \
3351 bfd_hash_lookup ((table), (string), (create), (copy)))
3352
3353#define ppc_branch_hash_lookup(table, string, create, copy) \
3354 ((struct ppc_branch_hash_entry *) \
3355 bfd_hash_lookup ((table), (string), (create), (copy)))
3356
3357/* Create an entry in the stub hash table. */
3358
3359static struct bfd_hash_entry *
4ce794b7
AM		 3360stub_hash_newfunc (struct bfd_hash_entry *entry,
3361 struct bfd_hash_table *table,
3362 const char *string)
721956f4
AM		 3363{
3364 /* Allocate the structure if it has not already been allocated by a
3365 subclass. */
3366 if (entry == NULL)
3367 {
3368 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
3369 if (entry == NULL)
3370 return entry;
3371 }
3372
3373 /* Call the allocation method of the superclass. */
3374 entry = bfd_hash_newfunc (entry, table, string);
3375 if (entry != NULL)
3376 {
3377 struct ppc_stub_hash_entry *eh;
3378
3379 /* Initialize the local fields. */
3380 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 3381 eh->stub_type = ppc_stub_none;
721956f4
AM		 3382 eh->stub_sec = NULL;
3383 eh->stub_offset = 0;
3384 eh->target_value = 0;
3385 eh->target_section = NULL;
721956f4
AM		 3386 eh->h = NULL;
3387 eh->id_sec = NULL;
3388 }
3389
3390 return entry;
3391}
3392
3393/* Create an entry in the branch hash table. */
3394
3395static struct bfd_hash_entry *
4ce794b7
AM		 3396branch_hash_newfunc (struct bfd_hash_entry *entry,
3397 struct bfd_hash_table *table,
3398 const char *string)
721956f4
AM		 3399{
3400 /* Allocate the structure if it has not already been allocated by a
3401 subclass. */
3402 if (entry == NULL)
3403 {
3404 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
3405 if (entry == NULL)
3406 return entry;
3407 }
3408
3409 /* Call the allocation method of the superclass. */
3410 entry = bfd_hash_newfunc (entry, table, string);
3411 if (entry != NULL)
3412 {
3413 struct ppc_branch_hash_entry *eh;
3414
3415 /* Initialize the local fields. */
3416 eh = (struct ppc_branch_hash_entry *) entry;
3417 eh->offset = 0;
3418 eh->iter = 0;
3419 }
3420
3421 return entry;
3422}
3423
65f38f15
AM		 3424/* Create an entry in a ppc64 ELF linker hash table. */
3425
3426static struct bfd_hash_entry *
4ce794b7
AM		 3427link_hash_newfunc (struct bfd_hash_entry *entry,
3428 struct bfd_hash_table *table,
3429 const char *string)
65f38f15
AM		 3430{
3431 /* Allocate the structure if it has not already been allocated by a
3432 subclass. */
3433 if (entry == NULL)
3434 {
3435 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
3436 if (entry == NULL)
3437 return entry;
3438 }
3439
3440 /* Call the allocation method of the superclass. */
3441 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
3442 if (entry != NULL)
3443 {
3444 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
3445
908b32fc
AM		 3446 memset (&eh->stub_cache, 0,
3447 (sizeof (struct ppc_link_hash_entry)
3448 - offsetof (struct ppc_link_hash_entry, stub_cache)));
65f38f15
AM		 3449 }
3450
3451 return entry;
3452}
3453
3454/* Create a ppc64 ELF linker hash table. */
3455
3456static struct bfd_link_hash_table *
4ce794b7 3457ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 3458{
3459 struct ppc_link_hash_table *htab;
3460 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
3461
4ce794b7 3462 htab = bfd_zmalloc (amt);
65f38f15
AM		 3463 if (htab == NULL)
3464 return NULL;
3465
3466 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
3467 {
e2d34d7d 3468 free (htab);
65f38f15
AM		 3469 return NULL;
3470 }
3471
721956f4
AM		 3472 /* Init the stub hash table too. */
3473 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
3474 return NULL;
3475
3476 /* And the branch hash table. */
3477 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
3478 return NULL;
3479
3254fd24
AM		 3480 /* Initializing two fields of the union is just cosmetic. We really
3481 only care about glist, but when compiled on a 32-bit host the
3482 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3483 debugger inspection of these fields look nicer. */
a6aa5195
AM		 3484 htab->elf.init_got_refcount.refcount = 0;
3485 htab->elf.init_got_refcount.glist = NULL;
3486 htab->elf.init_plt_refcount.refcount = 0;
3487 htab->elf.init_plt_refcount.glist = NULL;
3488 htab->elf.init_got_offset.offset = 0;
3489 htab->elf.init_got_offset.glist = NULL;
3490 htab->elf.init_plt_offset.offset = 0;
3491 htab->elf.init_plt_offset.glist = NULL;
3254fd24 3492
65f38f15
AM		 3493 return &htab->elf.root;
3494}
3495
721956f4
AM		 3496/* Free the derived linker hash table. */
3497
3498static void
4ce794b7 3499ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM		 3500{
3501 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3502
3503 bfd_hash_table_free (&ret->stub_hash_table);
3504 bfd_hash_table_free (&ret->branch_hash_table);
3505 _bfd_generic_link_hash_table_free (hash);
3506}
3507
e717da7e
AM		 3508/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3509
3510void
3511ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3512{
3513 struct ppc_link_hash_table *htab;
3514
3515 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3516
3517/* Always hook our dynamic sections into the first bfd, which is the
3518 linker created stub bfd. This ensures that the GOT header is at
3519 the start of the output TOC section. */
3520 htab = ppc_hash_table (info);
3521 htab->stub_bfd = abfd;
3522 htab->elf.dynobj = abfd;
3523}
3524
721956f4
AM		 3525/* Build a name for an entry in the stub hash table. */
3526
3527static char *
4ce794b7
AM		 3528ppc_stub_name (const asection *input_section,
3529 const asection *sym_sec,
3530 const struct ppc_link_hash_entry *h,
3531 const Elf_Internal_Rela *rel)
721956f4
AM		 3532{
3533 char *stub_name;
3534 bfd_size_type len;
3535
3536 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3537 offsets from a sym as a branch target? In fact, we could
3538 probably assume the addend is always zero. */
3539 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3540
3541 if (h)
3542 {
3543 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3544 stub_name = bfd_malloc (len);
46de2a7c
AM		 3545 if (stub_name == NULL)
3546 return stub_name;
3547
3548 sprintf (stub_name, "%08x.%s+%x",
3549 input_section->id & 0xffffffff,
3550 h->elf.root.root.string,
3551 (int) rel->r_addend & 0xffffffff);
721956f4
AM		 3552 }
3553 else
3554 {
ad8e1ba5 3555 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4 3556 stub_name = bfd_malloc (len);
46de2a7c
AM		 3557 if (stub_name == NULL)
3558 return stub_name;
3559
3560 sprintf (stub_name, "%08x.%x:%x+%x",
3561 input_section->id & 0xffffffff,
3562 sym_sec->id & 0xffffffff,
3563 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3564 (int) rel->r_addend & 0xffffffff);
721956f4 3565 }
ee75fd95
AM		 3566 if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
3567 stub_name[len - 2] = 0;
721956f4
AM		 3568 return stub_name;
3569}
3570
3571/* Look up an entry in the stub hash. Stub entries are cached because
3572 creating the stub name takes a bit of time. */
3573
3574static struct ppc_stub_hash_entry *
4ce794b7
AM		 3575ppc_get_stub_entry (const asection *input_section,
3576 const asection *sym_sec,
039b3fef 3577 struct ppc_link_hash_entry *h,
4ce794b7
AM		 3578 const Elf_Internal_Rela *rel,
3579 struct ppc_link_hash_table *htab)
721956f4
AM		 3580{
3581 struct ppc_stub_hash_entry *stub_entry;
721956f4
AM		 3582 const asection *id_sec;
3583
3584 /* If this input section is part of a group of sections sharing one
3585 stub section, then use the id of the first section in the group.
3586 Stub names need to include a section id, as there may well be
3587 more than one stub used to reach say, printf, and we need to
3588 distinguish between them. */
3589 id_sec = htab->stub_group[input_section->id].link_sec;
3590
3591 if (h != NULL && h->stub_cache != NULL
3592 && h->stub_cache->h == h
3593 && h->stub_cache->id_sec == id_sec)
3594 {
3595 stub_entry = h->stub_cache;
3596 }
3597 else
3598 {
3599 char *stub_name;
3600
3601 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3602 if (stub_name == NULL)
3603 return NULL;
3604
3605 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3606 stub_name, FALSE, FALSE);
721956f4
AM		 3607 if (h != NULL)
3608 h->stub_cache = stub_entry;
3609
3610 free (stub_name);
3611 }
3612
3613 return stub_entry;
3614}
3615
3616/* Add a new stub entry to the stub hash. Not all fields of the new
3617 stub entry are initialised. */
3618
3619static struct ppc_stub_hash_entry *
4ce794b7
AM		 3620ppc_add_stub (const char *stub_name,
3621 asection *section,
3622 struct ppc_link_hash_table *htab)
721956f4
AM		 3623{
3624 asection *link_sec;
3625 asection *stub_sec;
3626 struct ppc_stub_hash_entry *stub_entry;
3627
3628 link_sec = htab->stub_group[section->id].link_sec;
3629 stub_sec = htab->stub_group[section->id].stub_sec;
3630 if (stub_sec == NULL)
3631 {
3632 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3633 if (stub_sec == NULL)
3634 {
d4c88bbb 3635 size_t namelen;
721956f4
AM		 3636 bfd_size_type len;
3637 char *s_name;
3638
d4c88bbb
AM		 3639 namelen = strlen (link_sec->name);
3640 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM		 3641 s_name = bfd_alloc (htab->stub_bfd, len);
3642 if (s_name == NULL)
3643 return NULL;
3644
d4c88bbb
AM		 3645 memcpy (s_name, link_sec->name, namelen);
3646 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM		 3647 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3648 if (stub_sec == NULL)
3649 return NULL;
3650 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3651 }
3652 htab->stub_group[section->id].stub_sec = stub_sec;
3653 }
3654
3655 /* Enter this entry into the linker stub hash table. */
3656 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3657 TRUE, FALSE);
721956f4
AM		 3658 if (stub_entry == NULL)
3659 {
d003868e
AM		 3660 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
3661 section->owner, stub_name);
721956f4
AM		 3662 return NULL;
3663 }
3664
3665 stub_entry->stub_sec = stub_sec;
3666 stub_entry->stub_offset = 0;
3667 stub_entry->id_sec = link_sec;
3668 return stub_entry;
3669}
3670
82bd7b59
AM		 3671/* Create sections for linker generated code. */
3672
b34976b6 3673static bfd_boolean
4ce794b7 3674create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM		 3675{
3676 struct ppc_link_hash_table *htab;
3677 flagword flags;
3678
3679 htab = ppc_hash_table (info);
3680
3681 /* Create .sfpr for code to save and restore fp regs. */
3682 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3683 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3496cb2a
L		 3684 htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
3685 flags);
82bd7b59 3686 if (htab->sfpr == NULL
82bd7b59 3687 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3688 return FALSE;
82bd7b59 3689
721956f4 3690 /* Create .glink for lazy dynamic linking support. */
3496cb2a
L		 3691 htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
3692 flags);
4ce794b7 3693 if (htab->glink == NULL
4ce794b7 3694 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
b34976b6 3695 return FALSE;
82bd7b59 3696
c456f082
AM		 3697 /* Create branch lookup table for plt_branch stubs. */
3698 if (info->shared)
3699 {
3700 flags = (SEC_ALLOC | SEC_LOAD
3701 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3702 htab->brlt
3703 = bfd_make_section_anyway_with_flags (dynobj, ".data.rel.ro.brlt",
3704 flags);
3705 }
3706 else
3707 {
3708 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3709 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3710 htab->brlt
3711 = bfd_make_section_anyway_with_flags (dynobj, ".rodata.brlt", flags);
3712 }
3713
4ce794b7 3714 if (htab->brlt == NULL
4ce794b7 3715 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3716 return FALSE;
721956f4 3717
c456f082 3718 if (info->shared)
721956f4
AM		 3719 {
3720 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3721 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
c456f082
AM		 3722 htab->relbrlt
3723 = bfd_make_section_anyway_with_flags (dynobj, ".rela.data.rel.ro.brlt",
3724 flags);
721956f4 3725 }
c456f082
AM		 3726 else if (info->emitrelocations)
3727 {
3728 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3729 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3730 htab->relbrlt
3731 = bfd_make_section_anyway_with_flags (dynobj, ".rela.rodata.brlt",
3732 flags);
3733 }
3734 else
3735 return TRUE;
3736
3737 if (!htab->relbrlt
3738 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
3739 return FALSE;
3740
b34976b6 3741 return TRUE;
82bd7b59
AM		 3742}
3743
e717da7e
AM		 3744/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3745 not already done. */
65f38f15 3746
b34976b6 3747static bfd_boolean
e717da7e 3748create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3749{
e717da7e
AM		 3750 asection *got, *relgot;
3751 flagword flags;
3752 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3753
4ce794b7 3754 if (!htab->got)
e717da7e
AM		 3755 {
3756 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3757 return FALSE;
3758
3759 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3760 if (!htab->got)
3761 abort ();
3762 }
3763
3764 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3765 | SEC_LINKER_CREATED);
3766
c456f082 3767 got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
e717da7e 3768 if (!got
e717da7e
AM		 3769 || !bfd_set_section_alignment (abfd, got, 3))
3770 return FALSE;
65f38f15 3771
c456f082
AM		 3772 relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got",
3773 flags | SEC_READONLY);
e717da7e 3774 if (!relgot
e717da7e 3775 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3776 return FALSE;
e717da7e
AM		 3777
3778 ppc64_elf_tdata (abfd)->got = got;
3779 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3780 return TRUE;
65f38f15 3781}
5bd4f169 3782
82bd7b59 3783/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3784
b34976b6 3785static bfd_boolean
4ce794b7 3786ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3787{
65f38f15 3788 struct ppc_link_hash_table *htab;
5bd4f169 3789
65f38f15 3790 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3791 return FALSE;
65f38f15 3792
e717da7e
AM		 3793 htab = ppc_hash_table (info);
3794 if (!htab->got)
3795 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM		 3796 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3797 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3798 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3799 if (!info->shared)
4ce794b7 3800 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3801
e717da7e 3802 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3803 || (!info->shared && !htab->relbss))
65f38f15
AM		 3804 abort ();
3805
b34976b6 3806 return TRUE;
5bd4f169
AM		 3807}
3808
40d16e0b
AM		 3809/* Merge PLT info on FROM with that on TO. */
3810
3811static void
3812move_plt_plist (struct ppc_link_hash_entry *from,
3813 struct ppc_link_hash_entry *to)
3814{
3815 if (from->elf.plt.plist != NULL)
3816 {
3817 if (to->elf.plt.plist != NULL)
3818 {
3819 struct plt_entry **entp;
3820 struct plt_entry *ent;
3821
3822 for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; )
3823 {
3824 struct plt_entry *dent;
3825
3826 for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next)
3827 if (dent->addend == ent->addend)
3828 {
3829 dent->plt.refcount += ent->plt.refcount;
3830 *entp = ent->next;
3831 break;
3832 }
3833 if (dent == NULL)
3834 entp = &ent->next;
3835 }
3836 *entp = to->elf.plt.plist;
3837 }
3838
3839 to->elf.plt.plist = from->elf.plt.plist;
3840 from->elf.plt.plist = NULL;
3841 }
3842}
3843
65f38f15
AM		 3844/* Copy the extra info we tack onto an elf_link_hash_entry. */
3845
3846static void
9c5bfbb7
AM		 3847ppc64_elf_copy_indirect_symbol
3848 (const struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3849 struct elf_link_hash_entry *dir,
3850 struct elf_link_hash_entry *ind)
65f38f15
AM		 3851{
3852 struct ppc_link_hash_entry *edir, *eind;
3853
3854 edir = (struct ppc_link_hash_entry *) dir;
3855 eind = (struct ppc_link_hash_entry *) ind;
3856
411e1bfb 3857 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3858 if (eind->dyn_relocs != NULL)
65f38f15 3859 {
bbd7ec4a
AM		 3860 if (edir->dyn_relocs != NULL)
3861 {
3862 struct ppc_dyn_relocs **pp;
3863 struct ppc_dyn_relocs *p;
3864
411e1bfb 3865 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM		 3866 abort ();
3867
3868 /* Add reloc counts against the weak sym to the strong sym
3869 list. Merge any entries against the same section. */
3870 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3871 {
3872 struct ppc_dyn_relocs *q;
3873
3874 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3875 if (q->sec == p->sec)
3876 {
3877 q->pc_count += p->pc_count;
3878 q->count += p->count;
3879 *pp = p->next;
3880 break;
3881 }
3882 if (q == NULL)
3883 pp = &p->next;
3884 }
3885 *pp = edir->dyn_relocs;
3886 }
3887
65f38f15
AM		 3888 edir->dyn_relocs = eind->dyn_relocs;
3889 eind->dyn_relocs = NULL;
3890 }
65f38f15 3891
6349e628
AM		 3892 edir->is_func |= eind->is_func;
3893 edir->is_func_descriptor |= eind->is_func_descriptor;
58ac9f71 3894 edir->tls_mask |= eind->tls_mask;
6349e628 3895
81848ca0 3896 /* If called to transfer flags for a weakdef during processing
f5385ebf 3897 of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
81848ca0 3898 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
f5385ebf
AM		 3899 if (!(ELIMINATE_COPY_RELOCS
3900 && eind->elf.root.type != bfd_link_hash_indirect
3901 && edir->elf.dynamic_adjusted))
3902 edir->elf.non_got_ref |= eind->elf.non_got_ref;
81848ca0 3903
f5385ebf
AM		 3904 edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
3905 edir->elf.ref_regular |= eind->elf.ref_regular;
3906 edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
3907 edir->elf.needs_plt |= eind->elf.needs_plt;
6349e628
AM		 3908
3909 /* If we were called to copy over info for a weak sym, that's all. */
3910 if (eind->elf.root.type != bfd_link_hash_indirect)
3911 return;
3912
81848ca0
AM		 3913 /* Copy over got entries that we may have already seen to the
3914 symbol which just became indirect. */
411e1bfb
AM		 3915 if (eind->elf.got.glist != NULL)
3916 {
3917 if (edir->elf.got.glist != NULL)
3918 {
3919 struct got_entry **entp;
3920 struct got_entry *ent;
3921
3922 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3923 {
3924 struct got_entry *dent;
3925
3926 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3927 if (dent->addend == ent->addend
e717da7e 3928 && dent->owner == ent->owner
411e1bfb
AM		 3929 && dent->tls_type == ent->tls_type)
3930 {
3931 dent->got.refcount += ent->got.refcount;
3932 *entp = ent->next;
3933 break;
3934 }
3935 if (dent == NULL)
3936 entp = &ent->next;
3937 }
3938 *entp = edir->elf.got.glist;
3939 }
3940
3941 edir->elf.got.glist = eind->elf.got.glist;
3942 eind->elf.got.glist = NULL;
3943 }
3944
3945 /* And plt entries. */
40d16e0b 3946 move_plt_plist (eind, edir);
411e1bfb 3947
411e1bfb
AM		 3948 if (edir->elf.dynindx == -1)
3949 {
3950 edir->elf.dynindx = eind->elf.dynindx;
3951 edir->elf.dynstr_index = eind->elf.dynstr_index;
3952 eind->elf.dynindx = -1;
3953 eind->elf.dynstr_index = 0;
3954 }
3955 else
3956 BFD_ASSERT (eind->elf.dynindx == -1);
3957}
3958
8387904d
AM		 3959/* Find the function descriptor hash entry from the given function code
3960 hash entry FH. Link the entries via their OH fields. */
3961
3962static struct ppc_link_hash_entry *
3963get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
3964{
3965 struct ppc_link_hash_entry *fdh = fh->oh;
3966
3967 if (fdh == NULL)
3968 {
3969 const char *fd_name = fh->elf.root.root.string + 1;
3970
3971 fdh = (struct ppc_link_hash_entry *)
3972 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
3973 if (fdh != NULL)
3974 {
3975 fdh->is_func_descriptor = 1;
3976 fdh->oh = fh;
3977 fh->is_func = 1;
3978 fh->oh = fdh;
3979 }
3980 }
3981
3982 return fdh;
3983}
3984
bb700d78
AM		 3985/* Make a fake function descriptor sym for the code sym FH. */
3986
3987static struct ppc_link_hash_entry *
3988make_fdh (struct bfd_link_info *info,
908b32fc 3989 struct ppc_link_hash_entry *fh)
bb700d78
AM		 3990{
3991 bfd *abfd;
3992 asymbol *newsym;
3993 struct bfd_link_hash_entry *bh;
3994 struct ppc_link_hash_entry *fdh;
3995
3996 abfd = fh->elf.root.u.undef.abfd;
3997 newsym = bfd_make_empty_symbol (abfd);
3998 newsym->name = fh->elf.root.root.string + 1;
3999 newsym->section = bfd_und_section_ptr;
4000 newsym->value = 0;
908b32fc 4001 newsym->flags = BSF_WEAK;
bb700d78
AM		 4002
4003 bh = NULL;
4004 if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name,
4005 newsym->flags, newsym->section,
4006 newsym->value, NULL, FALSE, FALSE,
4007 &bh))
4008 return NULL;
4009
4010 fdh = (struct ppc_link_hash_entry *) bh;
4011 fdh->elf.non_elf = 0;
908b32fc
AM		 4012 fdh->fake = 1;
4013 fdh->is_func_descriptor = 1;
4014 fdh->oh = fh;
4015 fh->is_func = 1;
4016 fh->oh = fdh;
bb700d78
AM		 4017 return fdh;
4018}
4019
8387904d
AM		 4020/* Hacks to support old ABI code.
4021 When making function calls, old ABI code references function entry
4022 points (dot symbols), while new ABI code references the function
4023 descriptor symbol. We need to make any combination of reference and
4024 definition work together, without breaking archive linking.
4025
4026 For a defined function "foo" and an undefined call to "bar":
4027 An old object defines "foo" and ".foo", references ".bar" (possibly
4028 "bar" too).
4029 A new object defines "foo" and references "bar".
4030
4031 A new object thus has no problem with its undefined symbols being
4032 satisfied by definitions in an old object. On the other hand, the
4033 old object won't have ".bar" satisfied by a new object. */
4034
4035/* Fix function descriptor symbols defined in .opd sections to be
4036 function type. */
555cd476
AM		 4037
4038static bfd_boolean
433817dd 4039ppc64_elf_add_symbol_hook (bfd *ibfd,
555cd476
AM		 4040 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4041 Elf_Internal_Sym *isym,
433817dd 4042 const char **name,
555cd476
AM		 4043 flagword *flags ATTRIBUTE_UNUSED,
4044 asection **sec,
4045 bfd_vma *value ATTRIBUTE_UNUSED)
4046{
8843416a
AM		 4047 if (*sec != NULL
4048 && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
555cd476 4049 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
433817dd
AM		 4050
4051 if ((*name)[0] == '.'
4052 && ELF_ST_BIND (isym->st_info) == STB_GLOBAL
4053 && ELF_ST_TYPE (isym->st_info) < STT_SECTION
4054 && is_ppc64_elf_target (ibfd->xvec))
4055 ppc64_elf_tdata (ibfd)->u.has_dotsym = 1;
4056
555cd476
AM		 4057 return TRUE;
4058}
4059
8387904d 4060/* This function makes an old ABI object reference to ".bar" cause the
908b32fc
AM		 4061 inclusion of a new ABI object archive that defines "bar".
4062 NAME is a symbol defined in an archive. Return a symbol in the hash
4063 table that might be satisfied by the archive symbols. */
8387904d
AM		 4064
4065static struct elf_link_hash_entry *
4066ppc64_elf_archive_symbol_lookup (bfd *abfd,
4067 struct bfd_link_info *info,
4068 const char *name)
4069{
4070 struct elf_link_hash_entry *h;
4071 char *dot_name;
4072 size_t len;
4073
4074 h = _bfd_elf_archive_symbol_lookup (abfd, info, name);
908b32fc
AM		 4075 if (h != NULL
4076 /* Don't return this sym if it is a fake function descriptor
4077 created by add_symbol_adjust. */
4078 && !(h->root.type == bfd_link_hash_undefweak
4079 && ((struct ppc_link_hash_entry *) h)->fake))
8387904d
AM		 4080 return h;
4081
4082 if (name[0] == '.')
4083 return h;
4084
4085 len = strlen (name);
4086 dot_name = bfd_alloc (abfd, len + 2);
4087 if (dot_name == NULL)
4088 return (struct elf_link_hash_entry *) 0 - 1;
4089 dot_name[0] = '.';
4090 memcpy (dot_name + 1, name, len + 1);
4091 h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name);
4092 bfd_release (abfd, dot_name);
4093 return h;
4094}
4095
4096/* This function satisfies all old ABI object references to ".bar" if a
99877b66
AM		 4097 new ABI object defines "bar". Well, at least, undefined dot symbols
4098 are made weak. This stops later archive searches from including an
4099 object if we already have a function descriptor definition. It also
35b0ce59
AM		 4100 prevents the linker complaining about undefined symbols.
4101 We also check and correct mismatched symbol visibility here. The
4102 most restrictive visibility of the function descriptor and the
4103 function entry symbol is used. */
8387904d 4104
bb700d78
AM		 4105struct add_symbol_adjust_data
4106{
4107 struct bfd_link_info *info;
4108 bfd_boolean ok;
4109};
4110
8387904d
AM		 4111static bfd_boolean
4112add_symbol_adjust (struct elf_link_hash_entry *h, void *inf)
4113{
bb700d78 4114 struct add_symbol_adjust_data *data;
8387904d 4115 struct ppc_link_hash_table *htab;
99877b66 4116 struct ppc_link_hash_entry *eh;
8387904d
AM		 4117 struct ppc_link_hash_entry *fdh;
4118
4119 if (h->root.type == bfd_link_hash_indirect)
4120 return TRUE;
4121
4122 if (h->root.type == bfd_link_hash_warning)
4123 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4124
35b0ce59 4125 if (h->root.root.string[0] != '.')
8387904d
AM		 4126 return TRUE;
4127
bb700d78
AM		 4128 data = inf;
4129 htab = ppc_hash_table (data->info);
99877b66
AM		 4130 eh = (struct ppc_link_hash_entry *) h;
4131 fdh = get_fdh (eh, htab);
bb700d78 4132 if (fdh == NULL
c4f68ce3 4133 && !data->info->relocatable
bb700d78
AM		 4134 && (eh->elf.root.type == bfd_link_hash_undefined
4135 || eh->elf.root.type == bfd_link_hash_undefweak)
4136 && eh->elf.ref_regular)
4137 {
4138 /* Make an undefweak function descriptor sym, which is enough to
4139 pull in an --as-needed shared lib, but won't cause link
4140 errors. Archives are handled elsewhere. */
908b32fc 4141 fdh = make_fdh (data->info, eh);
bb700d78
AM		 4142 if (fdh == NULL)
4143 data->ok = FALSE;
4144 else
4145 fdh->elf.ref_regular = 1;
4146 }
e87d886e 4147 else if (fdh != NULL)
8387904d 4148 {
35b0ce59
AM		 4149 unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1;
4150 unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1;
4151 if (entry_vis < descr_vis)
4152 fdh->elf.other += entry_vis - descr_vis;
4153 else if (entry_vis > descr_vis)
4154 eh->elf.other += descr_vis - entry_vis;
4155
e87d886e
AM		 4156 if ((fdh->elf.root.type == bfd_link_hash_defined
4157 || fdh->elf.root.type == bfd_link_hash_defweak)
4158 && eh->elf.root.type == bfd_link_hash_undefined)
35b0ce59
AM		 4159 {
4160 eh->elf.root.type = bfd_link_hash_undefweak;
4161 eh->was_undefined = 1;
4162 htab->twiddled_syms = 1;
4163 }
8387904d 4164 }
99877b66 4165
8387904d
AM		 4166 return TRUE;
4167}
4168
4169static bfd_boolean
433817dd 4170ppc64_elf_check_directives (bfd *abfd, struct bfd_link_info *info)
8387904d 4171{
99877b66 4172 struct ppc_link_hash_table *htab;
bb700d78 4173 struct add_symbol_adjust_data data;
99877b66 4174
433817dd
AM		 4175 if (!is_ppc64_elf_target (abfd->xvec))
4176 return TRUE;
4177
4178 if (!ppc64_elf_tdata (abfd)->u.has_dotsym)
4179 return TRUE;
4180 ppc64_elf_tdata (abfd)->u.deleted_section = NULL;
4181
99877b66 4182 htab = ppc_hash_table (info);
ee75fd95 4183 if (!is_ppc64_elf_target (htab->elf.root.creator))
35b0ce59
AM		 4184 return TRUE;
4185
bb700d78
AM		 4186 data.info = info;
4187 data.ok = TRUE;
4188 elf_link_hash_traverse (&htab->elf, add_symbol_adjust, &data);
99877b66
AM		 4189
4190 /* We need to fix the undefs list for any syms we have twiddled to
4191 undef_weak. */
4192 if (htab->twiddled_syms)
4193 {
77cfaee6 4194 bfd_link_repair_undef_list (&htab->elf.root);
99877b66
AM		 4195 htab->twiddled_syms = 0;
4196 }
bb700d78 4197 return data.ok;
8387904d
AM		 4198}
4199
411e1bfb 4200static bfd_boolean
4ce794b7
AM		 4201update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
4202 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 4203{
4204 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 4205 char *local_got_tls_masks;
411e1bfb
AM		 4206
4207 if (local_got_ents == NULL)
4208 {
4209 bfd_size_type size = symtab_hdr->sh_info;
4210
e7b938ca 4211 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 4212 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM		 4213 if (local_got_ents == NULL)
4214 return FALSE;
4215 elf_local_got_ents (abfd) = local_got_ents;
4216 }
4217
4218 if ((tls_type & TLS_EXPLICIT) == 0)
4219 {
4220 struct got_entry *ent;
4221
4222 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 4223 if (ent->addend == r_addend
4224 && ent->owner == abfd
4225 && ent->tls_type == tls_type)
411e1bfb
AM		 4226 break;
4227 if (ent == NULL)
4228 {
4229 bfd_size_type amt = sizeof (*ent);
4ce794b7 4230 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 4231 if (ent == NULL)
4232 return FALSE;
4233 ent->next = local_got_ents[r_symndx];
4234 ent->addend = r_addend;
e717da7e 4235 ent->owner = abfd;
411e1bfb
AM		 4236 ent->tls_type = tls_type;
4237 ent->got.refcount = 0;
4238 local_got_ents[r_symndx] = ent;
4239 }
4240 ent->got.refcount += 1;
4241 }
4242
e7b938ca
AM		 4243 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
4244 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 4245 return TRUE;
65f38f15
AM		 4246}
4247
411e1bfb 4248static bfd_boolean
4ce794b7 4249update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 4250{
411e1bfb 4251 struct plt_entry *ent;
1e2f5b6e 4252
411e1bfb
AM		 4253 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
4254 if (ent->addend == addend)
4255 break;
4256 if (ent == NULL)
1e2f5b6e 4257 {
411e1bfb 4258 bfd_size_type amt = sizeof (*ent);
4ce794b7 4259 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 4260 if (ent == NULL)
4261 return FALSE;
4262 ent->next = eh->elf.plt.plist;
4263 ent->addend = addend;
4264 ent->plt.refcount = 0;
4265 eh->elf.plt.plist = ent;
1e2f5b6e 4266 }
411e1bfb 4267 ent->plt.refcount += 1;
f5385ebf 4268 eh->elf.needs_plt = 1;
93f3fa99
AM		 4269 if (eh->elf.root.root.string[0] == '.'
4270 && eh->elf.root.root.string[1] != '\0')
4271 eh->is_func = 1;
b34976b6 4272 return TRUE;
1e2f5b6e
AM		 4273}
4274
5bd4f169 4275/* Look through the relocs for a section during the first phase, and
65f38f15 4276 calculate needed space in the global offset table, procedure
5d1634d7 4277 linkage table, and dynamic reloc sections. */
5bd4f169 4278
b34976b6 4279static bfd_boolean
4ce794b7
AM		 4280ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
4281 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4282{
65f38f15 4283 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4284 Elf_Internal_Shdr *symtab_hdr;
4285 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
4286 const Elf_Internal_Rela *rel;
4287 const Elf_Internal_Rela *rel_end;
5bd4f169 4288 asection *sreloc;
1e2f5b6e 4289 asection **opd_sym_map;
5bd4f169 4290
1049f94e 4291 if (info->relocatable)
b34976b6 4292 return TRUE;
5bd4f169 4293
680a3378
AM		 4294 /* Don't do anything special with non-loaded, non-alloced sections.
4295 In particular, any relocs in such sections should not affect GOT
4296 and PLT reference counting (ie. we don't allow them to create GOT
4297 or PLT entries), there's no possibility or desire to optimize TLS
4298 relocs, and there's not much point in propagating relocs to shared
4299 libs that the dynamic linker won't relocate. */
4300 if ((sec->flags & SEC_ALLOC) == 0)
4301 return TRUE;
4302
65f38f15 4303 htab = ppc_hash_table (info);
5bd4f169 4304 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM		 4305
4306 sym_hashes = elf_sym_hashes (abfd);
4307 sym_hashes_end = (sym_hashes
1e2f5b6e
AM		 4308 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
4309 - symtab_hdr->sh_info);
5bd4f169
AM		 4310
4311 sreloc = NULL;
1e2f5b6e
AM		 4312 opd_sym_map = NULL;
4313 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
4314 {
4315 /* Garbage collection needs some extra help with .opd sections.
4316 We don't want to necessarily keep everything referenced by
4317 relocs in .opd, as that would keep all functions. Instead,
4318 if we reference an .opd symbol (a function descriptor), we
4319 want to keep the function code symbol's section. This is
4320 easy for global symbols, but for local syms we need to keep
4321 information about the associated function section. Later, if
4322 edit_opd deletes entries, we'll use this array to adjust
4323 local syms in .opd. */
4324 union opd_info {
4325 asection *func_section;
4326 long entry_adjust;
4327 };
4328 bfd_size_type amt;
4329
3f764659 4330 amt = sec->size * sizeof (union opd_info) / 8;
4ce794b7 4331 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 4332 if (opd_sym_map == NULL)
b34976b6 4333 return FALSE;
f0abc2a1 4334 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 4335 }
5bd4f169 4336
82bd7b59
AM		 4337 if (htab->sfpr == NULL
4338 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 4339 return FALSE;
82bd7b59 4340
5bd4f169
AM		 4341 rel_end = relocs + sec->reloc_count;
4342 for (rel = relocs; rel < rel_end; rel++)
4343 {
4344 unsigned long r_symndx;
4345 struct elf_link_hash_entry *h;
04c9666a 4346 enum elf_ppc64_reloc_type r_type;
411e1bfb 4347 int tls_type = 0;
5bd4f169
AM		 4348
4349 r_symndx = ELF64_R_SYM (rel->r_info);
4350 if (r_symndx < symtab_hdr->sh_info)
4351 h = NULL;
4352 else
973a3492
L		 4353 {
4354 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4355 while (h->root.type == bfd_link_hash_indirect
4356 || h->root.type == bfd_link_hash_warning)
4357 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4358 }
5bd4f169 4359
4ce794b7 4360 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4361 switch (r_type)
5bd4f169 4362 {
411e1bfb
AM		 4363 case R_PPC64_GOT_TLSLD16:
4364 case R_PPC64_GOT_TLSLD16_LO:
4365 case R_PPC64_GOT_TLSLD16_HI:
4366 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4367 ppc64_tlsld_got (abfd)->refcount += 1;
951fd09b 4368 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4369 goto dogottls;
4370
4371 case R_PPC64_GOT_TLSGD16:
4372 case R_PPC64_GOT_TLSGD16_LO:
4373 case R_PPC64_GOT_TLSGD16_HI:
4374 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4375 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4376 goto dogottls;
4377
4378 case R_PPC64_GOT_TPREL16_DS:
4379 case R_PPC64_GOT_TPREL16_LO_DS:
4380 case R_PPC64_GOT_TPREL16_HI:
4381 case R_PPC64_GOT_TPREL16_HA:
4382 if (info->shared)
4383 info->flags |= DF_STATIC_TLS;
4384 tls_type = TLS_TLS | TLS_TPREL;
4385 goto dogottls;
4386
4387 case R_PPC64_GOT_DTPREL16_DS:
4388 case R_PPC64_GOT_DTPREL16_LO_DS:
4389 case R_PPC64_GOT_DTPREL16_HI:
4390 case R_PPC64_GOT_DTPREL16_HA:
4391 tls_type = TLS_TLS | TLS_DTPREL;
4392 dogottls:
4393 sec->has_tls_reloc = 1;
4394 /* Fall thru */
4395
5bd4f169 4396 case R_PPC64_GOT16:
5bd4f169 4397 case R_PPC64_GOT16_DS:
65f38f15
AM		 4398 case R_PPC64_GOT16_HA:
4399 case R_PPC64_GOT16_HI:
4400 case R_PPC64_GOT16_LO:
5bd4f169 4401 case R_PPC64_GOT16_LO_DS:
65f38f15 4402 /* This symbol requires a global offset table entry. */
4c52953f 4403 sec->has_toc_reloc = 1;
e717da7e
AM		 4404 if (ppc64_elf_tdata (abfd)->got == NULL
4405 && !create_got_section (abfd, info))
b34976b6 4406 return FALSE;
5bd4f169
AM		 4407
4408 if (h != NULL)
4409 {
411e1bfb
AM		 4410 struct ppc_link_hash_entry *eh;
4411 struct got_entry *ent;
65f38f15 4412
411e1bfb
AM		 4413 eh = (struct ppc_link_hash_entry *) h;
4414 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
4415 if (ent->addend == rel->r_addend
e717da7e 4416 && ent->owner == abfd
411e1bfb
AM		 4417 && ent->tls_type == tls_type)
4418 break;
4419 if (ent == NULL)
5bd4f169 4420 {
411e1bfb 4421 bfd_size_type amt = sizeof (*ent);
4ce794b7 4422 ent = bfd_alloc (abfd, amt);
411e1bfb 4423 if (ent == NULL)
b34976b6 4424 return FALSE;
411e1bfb
AM		 4425 ent->next = eh->elf.got.glist;
4426 ent->addend = rel->r_addend;
e717da7e 4427 ent->owner = abfd;
411e1bfb
AM		 4428 ent->tls_type = tls_type;
4429 ent->got.refcount = 0;
4430 eh->elf.got.glist = ent;
5bd4f169 4431 }
411e1bfb 4432 ent->got.refcount += 1;
e7b938ca 4433 eh->tls_mask |= tls_type;
5bd4f169 4434 }
411e1bfb
AM		 4435 else
4436 /* This is a global offset table entry for a local symbol. */
4437 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4438 rel->r_addend, tls_type))
4439 return FALSE;
5bd4f169
AM		 4440 break;
4441
5bd4f169 4442 case R_PPC64_PLT16_HA:
65f38f15
AM		 4443 case R_PPC64_PLT16_HI:
4444 case R_PPC64_PLT16_LO:
4445 case R_PPC64_PLT32:
4446 case R_PPC64_PLT64:
5bd4f169 4447 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 4448 actually build the entry in adjust_dynamic_symbol,
4449 because this might be a case of linking PIC code without
4450 linking in any dynamic objects, in which case we don't
4451 need to generate a procedure linkage table after all. */
5bd4f169
AM		 4452 if (h == NULL)
4453 {
4454 /* It does not make sense to have a procedure linkage
3fad3c7c 4455 table entry for a local symbol. */
5bd4f169 4456 bfd_set_error (bfd_error_bad_value);
b34976b6 4457 return FALSE;
5bd4f169 4458 }
411e1bfb
AM		 4459 else
4460 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4461 rel->r_addend))
4462 return FALSE;
5bd4f169
AM		 4463 break;
4464
4465 /* The following relocations don't need to propagate the
4466 relocation if linking a shared object since they are
4467 section relative. */
4468 case R_PPC64_SECTOFF:
4469 case R_PPC64_SECTOFF_LO:
4470 case R_PPC64_SECTOFF_HI:
4471 case R_PPC64_SECTOFF_HA:
4472 case R_PPC64_SECTOFF_DS:
4473 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 4474 case R_PPC64_DTPREL16:
4475 case R_PPC64_DTPREL16_LO:
4476 case R_PPC64_DTPREL16_HI:
4477 case R_PPC64_DTPREL16_HA:
4478 case R_PPC64_DTPREL16_DS:
4479 case R_PPC64_DTPREL16_LO_DS:
4480 case R_PPC64_DTPREL16_HIGHER:
4481 case R_PPC64_DTPREL16_HIGHERA:
4482 case R_PPC64_DTPREL16_HIGHEST:
4483 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 4484 break;
4485
ad8e1ba5
AM		 4486 /* Nor do these. */
4487 case R_PPC64_TOC16:
4488 case R_PPC64_TOC16_LO:
4489 case R_PPC64_TOC16_HI:
4490 case R_PPC64_TOC16_HA:
4491 case R_PPC64_TOC16_DS:
4492 case R_PPC64_TOC16_LO_DS:
4c52953f 4493 sec->has_toc_reloc = 1;
ad8e1ba5
AM		 4494 break;
4495
5bd4f169
AM		 4496 /* This relocation describes the C++ object vtable hierarchy.
4497 Reconstruct it for later use during GC. */
4498 case R_PPC64_GNU_VTINHERIT:
c152c796 4499 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4500 return FALSE;
5bd4f169
AM		 4501 break;
4502
4503 /* This relocation describes which C++ vtable entries are actually
4504 used. Record for later use during GC. */
4505 case R_PPC64_GNU_VTENTRY:
c152c796 4506 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 4507 return FALSE;
5bd4f169
AM		 4508 break;
4509
721956f4
AM		 4510 case R_PPC64_REL14:
4511 case R_PPC64_REL14_BRTAKEN:
4512 case R_PPC64_REL14_BRNTAKEN:
4513 htab->has_14bit_branch = 1;
4514 /* Fall through. */
4515
5d1634d7 4516 case R_PPC64_REL24:
8387904d 4517 if (h != NULL)
5d1634d7
AM		 4518 {
4519 /* We may need a .plt entry if the function this reloc
4520 refers to is in a shared lib. */
411e1bfb
AM		 4521 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
4522 rel->r_addend))
4523 return FALSE;
8387904d
AM		 4524 if (h == &htab->tls_get_addr->elf
4525 || h == &htab->tls_get_addr_fd->elf)
411e1bfb 4526 sec->has_tls_reloc = 1;
8387904d
AM		 4527 else if (htab->tls_get_addr == NULL
4528 && !strncmp (h->root.root.string, ".__tls_get_addr", 15)
a48ebf4d
AM		 4529 && (h->root.root.string[15] == 0
4530 || h->root.root.string[15] == '@'))
411e1bfb 4531 {
8387904d
AM		 4532 htab->tls_get_addr = (struct ppc_link_hash_entry *) h;
4533 sec->has_tls_reloc = 1;
4534 }
4535 else if (htab->tls_get_addr_fd == NULL
4536 && !strncmp (h->root.root.string, "__tls_get_addr", 14)
4537 && (h->root.root.string[14] == 0
4538 || h->root.root.string[14] == '@'))
4539 {
4540 htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) h;
411e1bfb
AM		 4541 sec->has_tls_reloc = 1;
4542 }
4543 }
4544 break;
4545
4546 case R_PPC64_TPREL64:
4547 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
4548 if (info->shared)
4549 info->flags |= DF_STATIC_TLS;
4550 goto dotlstoc;
4551
4552 case R_PPC64_DTPMOD64:
4553 if (rel + 1 < rel_end
4554 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
4555 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 4556 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 4557 else
951fd09b 4558 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 4559 goto dotlstoc;
4560
4561 case R_PPC64_DTPREL64:
4562 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
4563 if (rel != relocs
4564 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
4565 && rel[-1].r_offset == rel->r_offset - 8)
4566 /* This is the second reloc of a dtpmod, dtprel pair.
4567 Don't mark with TLS_DTPREL. */
4568 goto dodyn;
4569
4570 dotlstoc:
4571 sec->has_tls_reloc = 1;
4572 if (h != NULL)
4573 {
4574 struct ppc_link_hash_entry *eh;
4575 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4576 eh->tls_mask |= tls_type;
411e1bfb
AM		 4577 }
4578 else
4579 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
4580 rel->r_addend, tls_type))
4581 return FALSE;
4582
4583 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
4584 {
e7b938ca 4585 /* One extra to simplify get_tls_mask. */
eea6121a 4586 bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1;
4ce794b7 4587 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
411e1bfb
AM		 4588 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
4589 return FALSE;
4590 }
4591 BFD_ASSERT (rel->r_offset % 8 == 0);
4592 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM		 4593
4594 /* Mark the second slot of a GD or LD entry.
4595 -1 to indicate GD and -2 to indicate LD. */
4596 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
4597 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
4598 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
4599 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 4600 goto dodyn;
4601
4602 case R_PPC64_TPREL16:
4603 case R_PPC64_TPREL16_LO:
4604 case R_PPC64_TPREL16_HI:
4605 case R_PPC64_TPREL16_HA:
4606 case R_PPC64_TPREL16_DS:
4607 case R_PPC64_TPREL16_LO_DS:
4608 case R_PPC64_TPREL16_HIGHER:
4609 case R_PPC64_TPREL16_HIGHERA:
4610 case R_PPC64_TPREL16_HIGHEST:
4611 case R_PPC64_TPREL16_HIGHESTA:
4612 if (info->shared)
4613 {
4614 info->flags |= DF_STATIC_TLS;
4615 goto dodyn;
5d1634d7
AM		 4616 }
4617 break;
4618
e86ce104 4619 case R_PPC64_ADDR64:
1e2f5b6e 4620 if (opd_sym_map != NULL
1e2f5b6e 4621 && rel + 1 < rel_end
4ce794b7 4622 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e 4623 {
8387904d
AM		 4624 if (h != NULL)
4625 {
4626 if (h->root.root.string[0] == '.'
4627 && h->root.root.string[1] != 0
4628 && get_fdh ((struct ppc_link_hash_entry *) h, htab))
4629 ;
4630 else
4631 ((struct ppc_link_hash_entry *) h)->is_func = 1;
4632 }
4633 else
4634 {
4635 asection *s;
1e2f5b6e 4636
8387904d
AM		 4637 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
4638 r_symndx);
4639 if (s == NULL)
4640 return FALSE;
4641 else if (s != sec)
3f764659 4642 opd_sym_map[rel->r_offset / 8] = s;
8387904d 4643 }
1e2f5b6e 4644 }
e86ce104
AM		 4645 /* Fall through. */
4646
04c9666a 4647 case R_PPC64_REL30:
5bd4f169 4648 case R_PPC64_REL32:
04c9666a 4649 case R_PPC64_REL64:
65f38f15
AM		 4650 case R_PPC64_ADDR14:
4651 case R_PPC64_ADDR14_BRNTAKEN:
4652 case R_PPC64_ADDR14_BRTAKEN:
4653 case R_PPC64_ADDR16:
4654 case R_PPC64_ADDR16_DS:
4655 case R_PPC64_ADDR16_HA:
4656 case R_PPC64_ADDR16_HI:
4657 case R_PPC64_ADDR16_HIGHER:
4658 case R_PPC64_ADDR16_HIGHERA:
4659 case R_PPC64_ADDR16_HIGHEST:
4660 case R_PPC64_ADDR16_HIGHESTA:
4661 case R_PPC64_ADDR16_LO:
4662 case R_PPC64_ADDR16_LO_DS:
4663 case R_PPC64_ADDR24:
65f38f15 4664 case R_PPC64_ADDR32:
65f38f15
AM		 4665 case R_PPC64_UADDR16:
4666 case R_PPC64_UADDR32:
4667 case R_PPC64_UADDR64:
5bd4f169 4668 case R_PPC64_TOC:
81848ca0
AM		 4669 if (h != NULL && !info->shared)
4670 /* We may need a copy reloc. */
f5385ebf 4671 h->non_got_ref = 1;
81848ca0 4672
41bd81ab 4673 /* Don't propagate .opd relocs. */
1e2f5b6e 4674 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 4675 break;
e86ce104 4676
65f38f15
AM		 4677 /* If we are creating a shared library, and this is a reloc
4678 against a global symbol, or a non PC relative reloc
4679 against a local symbol, then we need to copy the reloc
4680 into the shared library. However, if we are linking with
4681 -Bsymbolic, we do not need to copy a reloc against a
4682 global symbol which is defined in an object we are
4683 including in the link (i.e., DEF_REGULAR is set). At
4684 this point we have not seen all the input files, so it is
4685 possible that DEF_REGULAR is not set now but will be set
4686 later (it is never cleared). In case of a weak definition,
4687 DEF_REGULAR may be cleared later by a strong definition in
4688 a shared library. We account for that possibility below by
f4656909 4689 storing information in the dyn_relocs field of the hash
65f38f15
AM		 4690 table entry. A similar situation occurs when creating
4691 shared libraries and symbol visibility changes render the
4692 symbol local.
4693
4694 If on the other hand, we are creating an executable, we
4695 may need to keep relocations for symbols satisfied by a
4696 dynamic library if we manage to avoid copy relocs for the
4697 symbol. */
411e1bfb 4698 dodyn:
65f38f15 4699 if ((info->shared
411e1bfb 4700 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM		 4701 || (h != NULL
4702 && (! info->symbolic
4703 || h->root.type == bfd_link_hash_defweak
f5385ebf 4704 || !h->def_regular))))
f4656909
AM		 4705 || (ELIMINATE_COPY_RELOCS
4706 && !info->shared
65f38f15
AM		 4707 && h != NULL
4708 && (h->root.type == bfd_link_hash_defweak
f5385ebf 4709 || !h->def_regular)))
5bd4f169 4710 {
ec338859
AM		 4711 struct ppc_dyn_relocs *p;
4712 struct ppc_dyn_relocs **head;
4713
65f38f15
AM		 4714 /* We must copy these reloc types into the output file.
4715 Create a reloc section in dynobj and make room for
4716 this reloc. */
5bd4f169
AM		 4717 if (sreloc == NULL)
4718 {
4719 const char *name;
65f38f15 4720 bfd *dynobj;
5bd4f169
AM		 4721
4722 name = (bfd_elf_string_from_elf_section
4723 (abfd,
4724 elf_elfheader (abfd)->e_shstrndx,
4725 elf_section_data (sec)->rel_hdr.sh_name));
4726 if (name == NULL)
b34976b6 4727 return FALSE;
5bd4f169 4728
65f38f15
AM		 4729 if (strncmp (name, ".rela", 5) != 0
4730 || strcmp (bfd_get_section_name (abfd, sec),
4731 name + 5) != 0)
4732 {
4733 (*_bfd_error_handler)
d003868e
AM		 4734 (_("%B: bad relocation section name `%s\'"),
4735 abfd, name);
5d1634d7 4736 bfd_set_error (bfd_error_bad_value);
65f38f15
AM		 4737 }
4738
65f38f15 4739 dynobj = htab->elf.dynobj;
5bd4f169
AM		 4740 sreloc = bfd_get_section_by_name (dynobj, name);
4741 if (sreloc == NULL)
4742 {
4743 flagword flags;
4744
5bd4f169 4745 flags = (SEC_HAS_CONTENTS | SEC_READONLY
77623a34
AM		 4746 | SEC_IN_MEMORY | SEC_LINKER_CREATED
4747 | SEC_ALLOC | SEC_LOAD);
3496cb2a
L		 4748 sreloc = bfd_make_section_with_flags (dynobj,
4749 name,
4750 flags);
5bd4f169 4751 if (sreloc == NULL
65f38f15 4752 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 4753 return FALSE;
5bd4f169 4754 }
65f38f15 4755 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM		 4756 }
4757
65f38f15
AM		 4758 /* If this is a global symbol, we count the number of
4759 relocations we need for this symbol. */
4760 if (h != NULL)
4761 {
ec338859 4762 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM		 4763 }
4764 else
4765 {
ec338859
AM		 4766 /* Track dynamic relocs needed for local syms too.
4767 We really need local syms available to do this
4768 easily. Oh well. */
4769
4770 asection *s;
6edfbbad
DJ		 4771 void *vpp;
4772
ec338859
AM		 4773 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4774 sec, r_symndx);
4775 if (s == NULL)
b34976b6 4776 return FALSE;
ec338859 4777
6edfbbad
DJ		 4778 vpp = &elf_section_data (s)->local_dynrel;
4779 head = (struct ppc_dyn_relocs **) vpp;
65f38f15 4780 }
ec338859
AM		 4781
4782 p = *head;
4783 if (p == NULL || p->sec != sec)
4784 {
4ce794b7 4785 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4786 if (p == NULL)
b34976b6 4787 return FALSE;
ec338859
AM		 4788 p->next = *head;
4789 *head = p;
4790 p->sec = sec;
4791 p->count = 0;
4792 p->pc_count = 0;
4793 }
4794
4795 p->count += 1;
411e1bfb 4796 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4797 p->pc_count += 1;
65f38f15 4798 }
5bd4f169 4799 break;
65f38f15
AM		 4800
4801 default:
96e0dda4 4802 break;
5bd4f169
AM		 4803 }
4804 }
4805
b34976b6 4806 return TRUE;
5bd4f169
AM		 4807}
4808
8387904d
AM		 4809/* OFFSET in OPD_SEC specifies a function descriptor. Return the address
4810 of the code entry point, and its section. */
4811
4812static bfd_vma
4813opd_entry_value (asection *opd_sec,
4814 bfd_vma offset,
4815 asection **code_sec,
4816 bfd_vma *code_off)
4817{
4818 bfd *opd_bfd = opd_sec->owner;
8860955f 4819 Elf_Internal_Rela *relocs;
8387904d 4820 Elf_Internal_Rela *lo, *hi, *look;
645ea6a9 4821 bfd_vma val;
8387904d 4822
4b85d634
AM		 4823 /* No relocs implies we are linking a --just-symbols object. */
4824 if (opd_sec->reloc_count == 0)
4825 {
4826 bfd_vma val;
4827
4828 if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8))
4829 return (bfd_vma) -1;
3b36f7e6 4830
4b85d634
AM		 4831 if (code_sec != NULL)
4832 {
4833 asection *sec, *likely = NULL;
4834 for (sec = opd_bfd->sections; sec != NULL; sec = sec->next)
4835 if (sec->vma <= val
4836 && (sec->flags & SEC_LOAD) != 0
4837 && (sec->flags & SEC_ALLOC) != 0)
4838 likely = sec;
4839 if (likely != NULL)
4840 {
4841 *code_sec = likely;
4842 if (code_off != NULL)
4843 *code_off = val - likely->vma;
4844 }
4845 }
4846 return val;
4847 }
4848
8860955f
AM		 4849 relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
4850 if (relocs == NULL)
4851 relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
645ea6a9 4852
8387904d 4853 /* Go find the opd reloc at the sym address. */
8860955f 4854 lo = relocs;
8387904d
AM		 4855 BFD_ASSERT (lo != NULL);
4856 hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */
645ea6a9 4857 val = (bfd_vma) -1;
8387904d
AM		 4858 while (lo < hi)
4859 {
4860 look = lo + (hi - lo) / 2;
4861 if (look->r_offset < offset)
4862 lo = look + 1;
4863 else if (look->r_offset > offset)
4864 hi = look;
4865 else
4866 {
4867 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (opd_bfd)->symtab_hdr;
4868 if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64
4869 && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC)
4870 {
4871 unsigned long symndx = ELF64_R_SYM (look->r_info);
8387904d
AM		 4872 asection *sec;
4873
4874 if (symndx < symtab_hdr->sh_info)
4875 {
4876 Elf_Internal_Sym *sym;
4877
4878 sym = (Elf_Internal_Sym *) symtab_hdr->contents;
4879 if (sym == NULL)
4880 {
4881 sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr,
4882 symtab_hdr->sh_info,
4883 0, NULL, NULL, NULL);
4884 if (sym == NULL)
645ea6a9 4885 break;
8387904d
AM		 4886 symtab_hdr->contents = (bfd_byte *) sym;
4887 }
4888
4889 sym += symndx;
4890 val = sym->st_value;
4891 sec = NULL;
4892 if ((sym->st_shndx != SHN_UNDEF
4893 && sym->st_shndx < SHN_LORESERVE)
4894 || sym->st_shndx > SHN_HIRESERVE)
4895 sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
4896 BFD_ASSERT ((sec->flags & SEC_MERGE) == 0);
4897 }
4898 else
4899 {
4900 struct elf_link_hash_entry **sym_hashes;
4901 struct elf_link_hash_entry *rh;
4902
4903 sym_hashes = elf_sym_hashes (opd_bfd);
4904 rh = sym_hashes[symndx - symtab_hdr->sh_info];
4905 while (rh->root.type == bfd_link_hash_indirect
4906 || rh->root.type == bfd_link_hash_warning)
4907 rh = ((struct elf_link_hash_entry *) rh->root.u.i.link);
4908 BFD_ASSERT (rh->root.type == bfd_link_hash_defined
4909 || rh->root.type == bfd_link_hash_defweak);
4910 val = rh->root.u.def.value;
4911 sec = rh->root.u.def.section;
4912 }
4913 val += look->r_addend;
4914 if (code_off != NULL)
4915 *code_off = val;
4916 if (code_sec != NULL)
4917 *code_sec = sec;
4918 if (sec != NULL && sec->output_section != NULL)
4919 val += sec->output_section->vma + sec->output_offset;
8387904d
AM		 4920 }
4921 break;
4922 }
4923 }
645ea6a9 4924
645ea6a9 4925 return val;
8387904d
AM		 4926}
4927
5bd4f169
AM		 4928/* Return the section that should be marked against GC for a given
4929 relocation. */
4930
4931static asection *
4ce794b7 4932ppc64_elf_gc_mark_hook (asection *sec,
ccfa59ea 4933 struct bfd_link_info *info,
4ce794b7
AM		 4934 Elf_Internal_Rela *rel,
4935 struct elf_link_hash_entry *h,
4936 Elf_Internal_Sym *sym)
5bd4f169 4937{
ccfa59ea
AM		 4938 asection *rsec;
4939
4940 /* First mark all our entry sym sections. */
4941 if (info->gc_sym_list != NULL)
4942 {
4943 struct ppc_link_hash_table *htab = ppc_hash_table (info);
4944 struct bfd_sym_chain *sym = info->gc_sym_list;
4945
4946 info->gc_sym_list = NULL;
4947 do
4948 {
4949 struct ppc_link_hash_entry *eh;
4950
4951 eh = (struct ppc_link_hash_entry *)
4952 elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
4953 if (eh == NULL)
4954 continue;
4955 if (eh->elf.root.type != bfd_link_hash_defined
4956 && eh->elf.root.type != bfd_link_hash_defweak)
4957 continue;
4958
c4f68ce3
AM		 4959 if (eh->is_func_descriptor
4960 && (eh->oh->elf.root.type == bfd_link_hash_defined
4961 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea 4962 rsec = eh->oh->elf.root.u.def.section;
8387904d
AM		 4963 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
4964 && opd_entry_value (eh->elf.root.u.def.section,
4965 eh->elf.root.u.def.value,
4966 &rsec, NULL) != (bfd_vma) -1)
4967 ;
ccfa59ea
AM		 4968 else
4969 continue;
4970
4971 if (!rsec->gc_mark)
4972 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4973
4974 rsec = eh->elf.root.u.def.section;
4975 if (!rsec->gc_mark)
4976 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
4977
4978 sym = sym->next;
4979 }
4980 while (sym != NULL);
4981 }
4982
4983 /* Syms return NULL if we're marking .opd, so we avoid marking all
4984 function sections, as all functions are referenced in .opd. */
4985 rsec = NULL;
4986 if (get_opd_info (sec) != NULL)
4987 return rsec;
1e2f5b6e 4988
5bd4f169
AM		 4989 if (h != NULL)
4990 {
04c9666a 4991 enum elf_ppc64_reloc_type r_type;
ccfa59ea 4992 struct ppc_link_hash_entry *eh;
a33d1f77 4993
4ce794b7 4994 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4995 switch (r_type)
5bd4f169
AM		 4996 {
4997 case R_PPC64_GNU_VTINHERIT:
4998 case R_PPC64_GNU_VTENTRY:
4999 break;
5000
5001 default:
5002 switch (h->root.type)
5003 {
5004 case bfd_link_hash_defined:
5005 case bfd_link_hash_defweak:
ccfa59ea 5006 eh = (struct ppc_link_hash_entry *) h;
c4f68ce3
AM		 5007 if (eh->oh != NULL
5008 && eh->oh->is_func_descriptor
5009 && (eh->oh->elf.root.type == bfd_link_hash_defined
5010 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea 5011 eh = eh->oh;
1e2f5b6e
AM		 5012
5013 /* Function descriptor syms cause the associated
5014 function code sym section to be marked. */
c4f68ce3
AM		 5015 if (eh->is_func_descriptor
5016 && (eh->oh->elf.root.type == bfd_link_hash_defined
5017 || eh->oh->elf.root.type == bfd_link_hash_defweak))
ccfa59ea
AM		 5018 {
5019 /* They also mark their opd section. */
5020 if (!eh->elf.root.u.def.section->gc_mark)
5021 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
5022 ppc64_elf_gc_mark_hook);
5023
5024 rsec = eh->oh->elf.root.u.def.section;
5025 }
8387904d
AM		 5026 else if (get_opd_info (eh->elf.root.u.def.section) != NULL
5027 && opd_entry_value (eh->elf.root.u.def.section,
5028 eh->elf.root.u.def.value,
5029 &rsec, NULL) != (bfd_vma) -1)
5030 {
5031 if (!eh->elf.root.u.def.section->gc_mark)
5032 _bfd_elf_gc_mark (info, eh->elf.root.u.def.section,
5033 ppc64_elf_gc_mark_hook);
5034 }
ccfa59ea 5035 else
1e2f5b6e
AM		 5036 rsec = h->root.u.def.section;
5037 break;
5bd4f169
AM		 5038
5039 case bfd_link_hash_common:
1e2f5b6e
AM		 5040 rsec = h->root.u.c.p->section;
5041 break;
5bd4f169
AM		 5042
5043 default:
5044 break;
5045 }
5046 }
5047 }
5048 else
5049 {
1e2f5b6e
AM		 5050 asection **opd_sym_section;
5051
5052 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
ccfa59ea 5053 opd_sym_section = get_opd_info (rsec);
1e2f5b6e 5054 if (opd_sym_section != NULL)
ccfa59ea
AM		 5055 {
5056 if (!rsec->gc_mark)
5057 _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook);
5058
b4f4e59f 5059 rsec = opd_sym_section[(sym->st_value + rel->r_addend) / 8];
ccfa59ea 5060 }
5bd4f169
AM		 5061 }
5062
1e2f5b6e 5063 return rsec;
5bd4f169
AM		 5064}
5065
65f38f15
AM		 5066/* Update the .got, .plt. and dynamic reloc reference counts for the
5067 section being removed. */
5bd4f169 5068
b34976b6 5069static bfd_boolean
4ce794b7
AM		 5070ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5071 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 5072{
411e1bfb 5073 struct ppc_link_hash_table *htab;
5bd4f169
AM		 5074 Elf_Internal_Shdr *symtab_hdr;
5075 struct elf_link_hash_entry **sym_hashes;
411e1bfb 5076 struct got_entry **local_got_ents;
5bd4f169 5077 const Elf_Internal_Rela *rel, *relend;
5bd4f169 5078
680a3378
AM		 5079 if ((sec->flags & SEC_ALLOC) == 0)
5080 return TRUE;
5081
ec338859
AM		 5082 elf_section_data (sec)->local_dynrel = NULL;
5083
411e1bfb 5084 htab = ppc_hash_table (info);
5bd4f169
AM		 5085 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5086 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 5087 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 5088
5089 relend = relocs + sec->reloc_count;
5090 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 5091 {
5092 unsigned long r_symndx;
04c9666a 5093 enum elf_ppc64_reloc_type r_type;
58ac9f71 5094 struct elf_link_hash_entry *h = NULL;
411e1bfb 5095 char tls_type = 0;
5bd4f169 5096
a33d1f77 5097 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 5098 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 5099 if (r_symndx >= symtab_hdr->sh_info)
5100 {
5101 struct ppc_link_hash_entry *eh;
5102 struct ppc_dyn_relocs **pp;
5103 struct ppc_dyn_relocs *p;
5104
5105 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3eb128b2
AM		 5106 while (h->root.type == bfd_link_hash_indirect
5107 || h->root.type == bfd_link_hash_warning)
5108 h = (struct elf_link_hash_entry *) h->root.u.i.link;
58ac9f71
AM		 5109 eh = (struct ppc_link_hash_entry *) h;
5110
5111 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5112 if (p->sec == sec)
5113 {
5114 /* Everything must go for SEC. */
5115 *pp = p->next;
5116 break;
5117 }
5118 }
5119
a33d1f77
AM		 5120 switch (r_type)
5121 {
411e1bfb
AM		 5122 case R_PPC64_GOT_TLSLD16:
5123 case R_PPC64_GOT_TLSLD16_LO:
5124 case R_PPC64_GOT_TLSLD16_HI:
5125 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 5126 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 5127 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5128 goto dogot;
5129
5130 case R_PPC64_GOT_TLSGD16:
5131 case R_PPC64_GOT_TLSGD16_LO:
5132 case R_PPC64_GOT_TLSGD16_HI:
5133 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5134 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5135 goto dogot;
5136
5137 case R_PPC64_GOT_TPREL16_DS:
5138 case R_PPC64_GOT_TPREL16_LO_DS:
5139 case R_PPC64_GOT_TPREL16_HI:
5140 case R_PPC64_GOT_TPREL16_HA:
5141 tls_type = TLS_TLS | TLS_TPREL;
5142 goto dogot;
5143
5144 case R_PPC64_GOT_DTPREL16_DS:
5145 case R_PPC64_GOT_DTPREL16_LO_DS:
5146 case R_PPC64_GOT_DTPREL16_HI:
5147 case R_PPC64_GOT_DTPREL16_HA:
5148 tls_type = TLS_TLS | TLS_DTPREL;
5149 goto dogot;
5150
a33d1f77
AM		 5151 case R_PPC64_GOT16:
5152 case R_PPC64_GOT16_DS:
5153 case R_PPC64_GOT16_HA:
5154 case R_PPC64_GOT16_HI:
5155 case R_PPC64_GOT16_LO:
5156 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 5157 dogot:
5158 {
5159 struct got_entry *ent;
5160
58ac9f71
AM		 5161 if (h != NULL)
5162 ent = h->got.glist;
411e1bfb
AM		 5163 else
5164 ent = local_got_ents[r_symndx];
5165
5166 for (; ent != NULL; ent = ent->next)
5167 if (ent->addend == rel->r_addend
e717da7e 5168 && ent->owner == abfd
411e1bfb
AM		 5169 && ent->tls_type == tls_type)
5170 break;
5171 if (ent == NULL)
5172 abort ();
5173 if (ent->got.refcount > 0)
5174 ent->got.refcount -= 1;
5175 }
a33d1f77 5176 break;
65f38f15 5177
a33d1f77
AM		 5178 case R_PPC64_PLT16_HA:
5179 case R_PPC64_PLT16_HI:
5180 case R_PPC64_PLT16_LO:
5181 case R_PPC64_PLT32:
5182 case R_PPC64_PLT64:
721956f4
AM		 5183 case R_PPC64_REL14:
5184 case R_PPC64_REL14_BRNTAKEN:
5185 case R_PPC64_REL14_BRTAKEN:
5d1634d7 5186 case R_PPC64_REL24:
58ac9f71 5187 if (h != NULL)
5d1634d7 5188 {
411e1bfb
AM		 5189 struct plt_entry *ent;
5190
411e1bfb
AM		 5191 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5192 if (ent->addend == rel->r_addend)
5193 break;
5194 if (ent == NULL)
5195 abort ();
5196 if (ent->plt.refcount > 0)
5197 ent->plt.refcount -= 1;
5d1634d7 5198 }
e86ce104 5199 break;
5d1634d7 5200
a33d1f77
AM		 5201 default:
5202 break;
5203 }
5204 }
b34976b6 5205 return TRUE;
5bd4f169
AM		 5206}
5207
deb0e272
AM		 5208/* The maximum size of .sfpr. */
5209#define SFPR_MAX (218*4)
5210
5211struct sfpr_def_parms
5212{
699733f6
AM		 5213 const char name[12];
5214 unsigned char lo, hi;
deb0e272
AM		 5215 bfd_byte * (*write_ent) (bfd *, bfd_byte *, int);
5216 bfd_byte * (*write_tail) (bfd *, bfd_byte *, int);
5217};
5218
5219/* Auto-generate _save*, _rest* functions in .sfpr. */
5220
5221static unsigned int
5222sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm)
5223{
5224 struct ppc_link_hash_table *htab = ppc_hash_table (info);
5225 unsigned int i;
5226 size_t len = strlen (parm->name);
5227 bfd_boolean writing = FALSE;
699733f6 5228 char sym[16];
deb0e272
AM		 5229
5230 memcpy (sym, parm->name, len);
5231 sym[len + 2] = 0;
5232
5233 for (i = parm->lo; i <= parm->hi; i++)
5234 {
5235 struct elf_link_hash_entry *h;
5236
5237 sym[len + 0] = i / 10 + '0';
5238 sym[len + 1] = i % 10 + '0';
5239 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
5240 if (h != NULL
f5385ebf 5241 && !h->def_regular)
deb0e272
AM		 5242 {
5243 h->root.type = bfd_link_hash_defined;
5244 h->root.u.def.section = htab->sfpr;
5245 h->root.u.def.value = htab->sfpr->size;
5246 h->type = STT_FUNC;
f5385ebf 5247 h->def_regular = 1;
deb0e272
AM		 5248 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
5249 writing = TRUE;
5250 if (htab->sfpr->contents == NULL)
5251 {
5252 htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX);
5253 if (htab->sfpr->contents == NULL)
5254 return FALSE;
5255 }
5256 }
5257 if (writing)
5258 {
5259 bfd_byte *p = htab->sfpr->contents + htab->sfpr->size;
5260 if (i != parm->hi)
5261 p = (*parm->write_ent) (htab->elf.dynobj, p, i);
5262 else
5263 p = (*parm->write_tail) (htab->elf.dynobj, p, i);
5264 htab->sfpr->size = p - htab->sfpr->contents;
5265 }
5266 }
5267
5268 return TRUE;
5269}
5270
5271static bfd_byte *
5272savegpr0 (bfd *abfd, bfd_byte *p, int r)
5273{
5274 bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5275 return p + 4;
5276}
5277
5278static bfd_byte *
5279savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
5280{
5281 p = savegpr0 (abfd, p, r);
5282 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5283 p = p + 4;
5284 bfd_put_32 (abfd, BLR, p);
5285 return p + 4;
5286}
5287
5288static bfd_byte *
5289restgpr0 (bfd *abfd, bfd_byte *p, int r)
5290{
5291 bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5292 return p + 4;
5293}
5294
5295static bfd_byte *
5296restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
5297{
5298 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5299 p = p + 4;
5300 p = restgpr0 (abfd, p, r);
5301 bfd_put_32 (abfd, MTLR_R0, p);
5302 p = p + 4;
5303 if (r == 29)
5304 {
5305 p = restgpr0 (abfd, p, 30);
5306 p = restgpr0 (abfd, p, 31);
5307 }
5308 bfd_put_32 (abfd, BLR, p);
5309 return p + 4;
5310}
5311
5312static bfd_byte *
5313savegpr1 (bfd *abfd, bfd_byte *p, int r)
5314{
5315 bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5316 return p + 4;
5317}
5318
5319static bfd_byte *
5320savegpr1_tail (bfd *abfd, bfd_byte *p, int r)
5321{
5322 p = savegpr1 (abfd, p, r);
5323 bfd_put_32 (abfd, BLR, p);
5324 return p + 4;
5325}
5326
5327static bfd_byte *
5328restgpr1 (bfd *abfd, bfd_byte *p, int r)
5329{
5330 bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5331 return p + 4;
5332}
5333
5334static bfd_byte *
5335restgpr1_tail (bfd *abfd, bfd_byte *p, int r)
5336{
5337 p = restgpr1 (abfd, p, r);
5338 bfd_put_32 (abfd, BLR, p);
5339 return p + 4;
5340}
5341
5342static bfd_byte *
5343savefpr (bfd *abfd, bfd_byte *p, int r)
5344{
5345 bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5346 return p + 4;
5347}
5348
5349static bfd_byte *
5350savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
5351{
5352 p = savefpr (abfd, p, r);
5353 bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
5354 p = p + 4;
5355 bfd_put_32 (abfd, BLR, p);
5356 return p + 4;
5357}
5358
5359static bfd_byte *
5360restfpr (bfd *abfd, bfd_byte *p, int r)
5361{
5362 bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p);
5363 return p + 4;
5364}
5365
5366static bfd_byte *
5367restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
5368{
5369 bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
5370 p = p + 4;
5371 p = restfpr (abfd, p, r);
5372 bfd_put_32 (abfd, MTLR_R0, p);
5373 p = p + 4;
5374 if (r == 29)
5375 {
5376 p = restfpr (abfd, p, 30);
5377 p = restfpr (abfd, p, 31);
5378 }
5379 bfd_put_32 (abfd, BLR, p);
5380 return p + 4;
5381}
5382
5383static bfd_byte *
5384savefpr1_tail (bfd *abfd, bfd_byte *p, int r)
5385{
5386 p = savefpr (abfd, p, r);
5387 bfd_put_32 (abfd, BLR, p);
5388 return p + 4;
5389}
5390
5391static bfd_byte *
5392restfpr1_tail (bfd *abfd, bfd_byte *p, int r)
5393{
5394 p = restfpr (abfd, p, r);
5395 bfd_put_32 (abfd, BLR, p);
5396 return p + 4;
5397}
5398
5399static bfd_byte *
5400savevr (bfd *abfd, bfd_byte *p, int r)
5401{
5402 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5403 p = p + 4;
5404 bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p);
5405 return p + 4;
5406}
5407
5408static bfd_byte *
5409savevr_tail (bfd *abfd, bfd_byte *p, int r)
5410{
5411 p = savevr (abfd, p, r);
5412 bfd_put_32 (abfd, BLR, p);
5413 return p + 4;
5414}
5415
5416static bfd_byte *
5417restvr (bfd *abfd, bfd_byte *p, int r)
5418{
5419 bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p);
5420 p = p + 4;
5421 bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p);
5422 return p + 4;
5423}
5424
5425static bfd_byte *
5426restvr_tail (bfd *abfd, bfd_byte *p, int r)
5427{
5428 p = restvr (abfd, p, r);
5429 bfd_put_32 (abfd, BLR, p);
5430 return p + 4;
5431}
5432
e86ce104
AM		 5433/* Called via elf_link_hash_traverse to transfer dynamic linking
5434 information on function code symbol entries to their corresponding
5435 function descriptor symbol entries. */
deb0e272 5436
b34976b6 5437static bfd_boolean
4ce794b7 5438func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5439{
e86ce104 5440 struct bfd_link_info *info;
65f38f15 5441 struct ppc_link_hash_table *htab;
411e1bfb 5442 struct plt_entry *ent;
50bc7936
AM		 5443 struct ppc_link_hash_entry *fh;
5444 struct ppc_link_hash_entry *fdh;
5445 bfd_boolean force_local;
5bd4f169 5446
50bc7936
AM		 5447 fh = (struct ppc_link_hash_entry *) h;
5448 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 5449 return TRUE;
e86ce104 5450
50bc7936
AM		 5451 if (fh->elf.root.type == bfd_link_hash_warning)
5452 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 5453
4ce794b7 5454 info = inf;
65f38f15 5455 htab = ppc_hash_table (info);
5bd4f169 5456
c09bdfe5
AM		 5457 /* Resolve undefined references to dot-symbols as the value
5458 in the function descriptor, if we have one in a regular object.
5459 This is to satisfy cases like ".quad .foo". Calls to functions
5460 in dynamic objects are handled elsewhere. */
5461 if (fh->elf.root.type == bfd_link_hash_undefweak
5462 && fh->was_undefined
5463 && (fh->oh->elf.root.type == bfd_link_hash_defined
5464 || fh->oh->elf.root.type == bfd_link_hash_defweak)
5465 && get_opd_info (fh->oh->elf.root.u.def.section) != NULL
5466 && opd_entry_value (fh->oh->elf.root.u.def.section,
5467 fh->oh->elf.root.u.def.value,
5468 &fh->elf.root.u.def.section,
5469 &fh->elf.root.u.def.value) != (bfd_vma) -1)
5470 {
5471 fh->elf.root.type = fh->oh->elf.root.type;
f5385ebf 5472 fh->elf.forced_local = 1;
c09bdfe5
AM		 5473 }
5474
e86ce104
AM		 5475 /* If this is a function code symbol, transfer dynamic linking
5476 information to the function descriptor symbol. */
50bc7936 5477 if (!fh->is_func)
b34976b6 5478 return TRUE;
e86ce104 5479
50bc7936 5480 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 5481 if (ent->plt.refcount > 0)
5482 break;
50bc7936
AM		 5483 if (ent == NULL
5484 || fh->elf.root.root.string[0] != '.'
5485 || fh->elf.root.root.string[1] == '\0')
5486 return TRUE;
5bd4f169 5487
50bc7936
AM		 5488 /* Find the corresponding function descriptor symbol. Create it
5489 as undefined if necessary. */
5bd4f169 5490
50bc7936
AM		 5491 fdh = get_fdh (fh, htab);
5492 if (fdh != NULL)
5493 while (fdh->elf.root.type == bfd_link_hash_indirect
5494 || fdh->elf.root.type == bfd_link_hash_warning)
5495 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 5496
50bc7936
AM		 5497 if (fdh == NULL
5498 && info->shared
5499 && (fh->elf.root.type == bfd_link_hash_undefined
5500 || fh->elf.root.type == bfd_link_hash_undefweak))
5501 {
908b32fc 5502 fdh = make_fdh (info, fh);
bb700d78
AM		 5503 if (fdh == NULL)
5504 return FALSE;
50bc7936 5505 }
648cca2c 5506
908b32fc 5507 /* Fake function descriptors are made undefweak. If the function
433817dd
AM		 5508 code symbol is strong undefined, make the fake sym the same.
5509 If the function code symbol is defined, then force the fake
5510 descriptor local; We can't support overriding of symbols in a
5511 shared library on a fake descriptor. */
908b32fc
AM		 5512
5513 if (fdh != NULL
5514 && fdh->fake
433817dd 5515 && fdh->elf.root.type == bfd_link_hash_undefweak)
908b32fc 5516 {
433817dd
AM		 5517 if (fh->elf.root.type == bfd_link_hash_undefined)
5518 {
5519 fdh->elf.root.type = bfd_link_hash_undefined;
5520 bfd_link_add_undef (&htab->elf.root, &fdh->elf.root);
5521 }
5522 else if (fh->elf.root.type == bfd_link_hash_defined
5523 || fh->elf.root.type == bfd_link_hash_defweak)
5524 {
5525 _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE);
5526 }
908b32fc
AM		 5527 }
5528
50bc7936 5529 if (fdh != NULL
f5385ebf 5530 && !fdh->elf.forced_local
50bc7936 5531 && (info->shared
f5385ebf
AM		 5532 || fdh->elf.def_dynamic
5533 || fdh->elf.ref_dynamic
50bc7936
AM		 5534 || (fdh->elf.root.type == bfd_link_hash_undefweak
5535 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
5536 {
5537 if (fdh->elf.dynindx == -1)
c152c796 5538 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936 5539 return FALSE;
f5385ebf
AM		 5540 fdh->elf.ref_regular |= fh->elf.ref_regular;
5541 fdh->elf.ref_dynamic |= fh->elf.ref_dynamic;
5542 fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak;
5543 fdh->elf.non_got_ref |= fh->elf.non_got_ref;
50bc7936 5544 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 5545 {
40d16e0b 5546 move_plt_plist (fh, fdh);
f5385ebf 5547 fdh->elf.needs_plt = 1;
e86ce104 5548 }
50bc7936 5549 fdh->is_func_descriptor = 1;
34814b9f
AM		 5550 fdh->oh = fh;
5551 fh->oh = fdh;
e86ce104
AM		 5552 }
5553
50bc7936
AM		 5554 /* Now that the info is on the function descriptor, clear the
5555 function code sym info. Any function code syms for which we
5556 don't have a definition in a regular file, we force local.
5557 This prevents a shared library from exporting syms that have
5558 been imported from another library. Function code syms that
5559 are really in the library we must leave global to prevent the
5560 linker dragging in a definition from a static library. */
93f3fa99
AM		 5561 force_local = (!fh->elf.def_regular
5562 || fdh == NULL
5563 || !fdh->elf.def_regular
5564 || fdh->elf.forced_local);
50bc7936
AM		 5565 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
5566
b34976b6 5567 return TRUE;
e86ce104 5568}
40b8271b 5569
e86ce104 5570/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 5571 this hook to a) provide some gcc support functions, and b) transfer
5572 dynamic linking information gathered so far on function code symbol
5573 entries, to their corresponding function descriptor symbol entries. */
deb0e272 5574
b34976b6 5575static bfd_boolean
4ce794b7
AM		 5576ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
5577 struct bfd_link_info *info)
e86ce104
AM		 5578{
5579 struct ppc_link_hash_table *htab;
82bd7b59 5580 unsigned int i;
deb0e272
AM		 5581 const struct sfpr_def_parms funcs[] =
5582 {
5583 { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail },
5584 { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail },
5585 { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail },
5586 { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail },
5587 { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail },
5588 { "_savefpr_", 14, 31, savefpr, savefpr0_tail },
5589 { "_restfpr_", 14, 29, restfpr, restfpr0_tail },
5590 { "_restfpr_", 30, 31, restfpr, restfpr0_tail },
5591 { "._savef", 14, 31, savefpr, savefpr1_tail },
5592 { "._restf", 14, 31, restfpr, restfpr1_tail },
5593 { "_savevr_", 20, 31, savevr, savevr_tail },
5594 { "_restvr_", 20, 31, restvr, restvr_tail }
5595 };
e86ce104
AM		 5596
5597 htab = ppc_hash_table (info);
82bd7b59
AM		 5598 if (htab->sfpr == NULL)
5599 /* We don't have any relocs. */
b34976b6 5600 return TRUE;
82bd7b59 5601
deb0e272
AM		 5602 /* Provide any missing _save* and _rest* functions. */
5603 htab->sfpr->size = 0;
5604 for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++)
5605 if (!sfpr_define (info, &funcs[i]))
5606 return FALSE;
82bd7b59 5607
4ce794b7 5608 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 5609
eea6121a 5610 if (htab->sfpr->size == 0)
8423293d 5611 htab->sfpr->flags |= SEC_EXCLUDE;
82bd7b59 5612
b34976b6 5613 return TRUE;
e86ce104
AM		 5614}
5615
5616/* Adjust a symbol defined by a dynamic object and referenced by a
5617 regular object. The current definition is in some section of the
5618 dynamic object, but we're not including those sections. We have to
5619 change the definition to something the rest of the link can
5620 understand. */
5621
b34976b6 5622static bfd_boolean
4ce794b7
AM		 5623ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
5624 struct elf_link_hash_entry *h)
e86ce104
AM		 5625{
5626 struct ppc_link_hash_table *htab;
e86ce104
AM		 5627 asection *s;
5628 unsigned int power_of_two;
5629
5630 htab = ppc_hash_table (info);
5631
5632 /* Deal with function syms. */
5633 if (h->type == STT_FUNC
f5385ebf 5634 || h->needs_plt)
e86ce104
AM		 5635 {
5636 /* Clear procedure linkage table information for any symbol that
5637 won't need a .plt entry. */
411e1bfb
AM		 5638 struct plt_entry *ent;
5639 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
5640 if (ent->plt.refcount > 0)
5641 break;
8387904d 5642 if (ent == NULL
9c7a29a3
AM		 5643 || SYMBOL_CALLS_LOCAL (info, h)
5644 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5645 && h->root.type == bfd_link_hash_undefweak))
40b8271b 5646 {
411e1bfb 5647 h->plt.plist = NULL;
f5385ebf 5648 h->needs_plt = 0;
40b8271b 5649 }
5bd4f169 5650 }
bbd7ec4a 5651 else
411e1bfb 5652 h->plt.plist = NULL;
5bd4f169
AM		 5653
5654 /* If this is a weak symbol, and there is a real definition, the
5655 processor independent code will have arranged for us to see the
5656 real definition first, and we can just use the same value. */
f6e332e6 5657 if (h->u.weakdef != NULL)
5bd4f169 5658 {
f6e332e6
AM		 5659 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5660 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5661 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5662 h->root.u.def.value = h->u.weakdef->root.u.def.value;
a23b6845 5663 if (ELIMINATE_COPY_RELOCS)
f6e332e6 5664 h->non_got_ref = h->u.weakdef->non_got_ref;
b34976b6 5665 return TRUE;
5bd4f169
AM		 5666 }
5667
5bd4f169
AM		 5668 /* If we are creating a shared library, we must presume that the
5669 only references to the symbol are via the global offset table.
5670 For such cases we need not do anything here; the relocations will
5671 be handled correctly by relocate_section. */
5672 if (info->shared)
b34976b6 5673 return TRUE;
5bd4f169 5674
65f38f15
AM		 5675 /* If there are no references to this symbol that do not use the
5676 GOT, we don't need to generate a copy reloc. */
f5385ebf 5677 if (!h->non_got_ref)
b34976b6 5678 return TRUE;
65f38f15 5679
f4656909 5680 if (ELIMINATE_COPY_RELOCS)
65f38f15 5681 {
f4656909
AM		 5682 struct ppc_link_hash_entry * eh;
5683 struct ppc_dyn_relocs *p;
65f38f15 5684
f4656909
AM		 5685 eh = (struct ppc_link_hash_entry *) h;
5686 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5687 {
5688 s = p->sec->output_section;
5689 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5690 break;
5691 }
5692
5693 /* If we didn't find any dynamic relocs in read-only sections, then
5694 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5695 if (p == NULL)
5696 {
f5385ebf 5697 h->non_got_ref = 0;
f4656909
AM		 5698 return TRUE;
5699 }
65f38f15
AM		 5700 }
5701
5d35169e 5702 if (h->plt.plist != NULL)
97b639ba
AM		 5703 {
5704 /* We should never get here, but unfortunately there are versions
5705 of gcc out there that improperly (for this ABI) put initialized
5706 function pointers, vtable refs and suchlike in read-only
5707 sections. Allow them to proceed, but warn that this might
5708 break at runtime. */
5709 (*_bfd_error_handler)
5710 (_("copy reloc against `%s' requires lazy plt linking; "
5711 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
5712 h->root.root.string);
5713 }
5d35169e
AM		 5714
5715 /* This is a reference to a symbol defined by a dynamic object which
5716 is not a function. */
5717
909272ee
AM		 5718 if (h->size == 0)
5719 {
5720 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
5721 h->root.root.string);
5722 return TRUE;
5723 }
5724
5bd4f169
AM		 5725 /* We must allocate the symbol in our .dynbss section, which will
5726 become part of the .bss section of the executable. There will be
5727 an entry for this symbol in the .dynsym section. The dynamic
5728 object will contain position independent code, so all references
5729 from the dynamic object to this symbol will go through the global
5730 offset table. The dynamic linker will use the .dynsym entry to
5731 determine the address it must put in the global offset table, so
5732 both the dynamic object and the regular object will refer to the
5733 same memory location for the variable. */
5bd4f169 5734
04c9666a
AM		 5735 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
5736 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 5737 runtime process image. We need to remember the offset into the
5738 .rela.bss section we are going to use. */
5739 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
5740 {
eea6121a 5741 htab->relbss->size += sizeof (Elf64_External_Rela);
f5385ebf 5742 h->needs_copy = 1;
5bd4f169
AM		 5743 }
5744
5745 /* We need to figure out the alignment required for this symbol. I
5746 have no idea how ELF linkers handle this. */
5747 power_of_two = bfd_log2 (h->size);
5748 if (power_of_two > 4)
5749 power_of_two = 4;
5750
5751 /* Apply the required alignment. */
4ce794b7 5752 s = htab->dynbss;
eea6121a 5753 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
65f38f15 5754 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 5755 {
65f38f15 5756 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 5757 return FALSE;
5bd4f169
AM		 5758 }
5759
5760 /* Define the symbol as being at this point in the section. */
5761 h->root.u.def.section = s;
eea6121a 5762 h->root.u.def.value = s->size;
5bd4f169
AM		 5763
5764 /* Increment the section size to make room for the symbol. */
eea6121a 5765 s->size += h->size;
5bd4f169 5766
b34976b6 5767 return TRUE;
5bd4f169
AM		 5768}
5769
e86ce104
AM		 5770/* If given a function descriptor symbol, hide both the function code
5771 sym and the descriptor. */
5772static void
4ce794b7
AM		 5773ppc64_elf_hide_symbol (struct bfd_link_info *info,
5774 struct elf_link_hash_entry *h,
5775 bfd_boolean force_local)
e86ce104 5776{
34814b9f 5777 struct ppc_link_hash_entry *eh;
e86ce104
AM		 5778 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
5779
34814b9f
AM		 5780 eh = (struct ppc_link_hash_entry *) h;
5781 if (eh->is_func_descriptor)
e86ce104 5782 {
34814b9f 5783 struct ppc_link_hash_entry *fh = eh->oh;
e86ce104 5784
721956f4 5785 if (fh == NULL)
d1329ca3
AM		 5786 {
5787 const char *p, *q;
5788 struct ppc_link_hash_table *htab;
5789 char save;
5790
5791 /* We aren't supposed to use alloca in BFD because on
5792 systems which do not have alloca the version in libiberty
5793 calls xmalloc, which might cause the program to crash
5794 when it runs out of memory. This function doesn't have a
5795 return status, so there's no way to gracefully return an
5796 error. So cheat. We know that string[-1] can be safely
34814b9f
AM		 5797 accessed; It's either a string in an ELF string table,
5798 or allocated in an objalloc structure. */
d1329ca3 5799
34814b9f 5800 p = eh->elf.root.root.string - 1;
d1329ca3
AM		 5801 save = *p;
5802 *(char *) p = '.';
5803 htab = ppc_hash_table (info);
34814b9f
AM		 5804 fh = (struct ppc_link_hash_entry *)
5805 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5806 *(char *) p = save;
5807
5808 /* Unfortunately, if it so happens that the string we were
5809 looking for was allocated immediately before this string,
5810 then we overwrote the string terminator. That's the only
5811 reason the lookup should fail. */
5812 if (fh == NULL)
5813 {
34814b9f
AM		 5814 q = eh->elf.root.root.string + strlen (eh->elf.root.root.string);
5815 while (q >= eh->elf.root.root.string && *q == *p)
d1329ca3 5816 --q, --p;
34814b9f
AM		 5817 if (q < eh->elf.root.root.string && *p == '.')
5818 fh = (struct ppc_link_hash_entry *)
5819 elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 5820 }
5821 if (fh != NULL)
5822 {
34814b9f
AM		 5823 eh->oh = fh;
5824 fh->oh = eh;
d1329ca3
AM		 5825 }
5826 }
e86ce104 5827 if (fh != NULL)
34814b9f 5828 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
e86ce104
AM		 5829 }
5830}
5831
411e1bfb 5832static bfd_boolean
8843416a
AM		 5833get_sym_h (struct elf_link_hash_entry **hp,
5834 Elf_Internal_Sym **symp,
5835 asection **symsecp,
5836 char **tls_maskp,
5837 Elf_Internal_Sym **locsymsp,
5838 unsigned long r_symndx,
5839 bfd *ibfd)
411e1bfb
AM		 5840{
5841 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5842
5843 if (r_symndx >= symtab_hdr->sh_info)
5844 {
5845 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
5846 struct elf_link_hash_entry *h;
5847
5848 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5849 while (h->root.type == bfd_link_hash_indirect
5850 || h->root.type == bfd_link_hash_warning)
5851 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5852
5853 if (hp != NULL)
5854 *hp = h;
5855
5856 if (symp != NULL)
5857 *symp = NULL;
5858
5859 if (symsecp != NULL)
5860 {
5861 asection *symsec = NULL;
5862 if (h->root.type == bfd_link_hash_defined
5863 || h->root.type == bfd_link_hash_defweak)
5864 symsec = h->root.u.def.section;
5865 *symsecp = symsec;
5866 }
5867
e7b938ca 5868 if (tls_maskp != NULL)
411e1bfb
AM		 5869 {
5870 struct ppc_link_hash_entry *eh;
5871
5872 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 5873 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 5874 }
5875 }
5876 else
5877 {
5878 Elf_Internal_Sym *sym;
5879 Elf_Internal_Sym *locsyms = *locsymsp;
5880
5881 if (locsyms == NULL)
5882 {
5883 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
5884 if (locsyms == NULL)
5885 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
5886 symtab_hdr->sh_info,
5887 0, NULL, NULL, NULL);
5888 if (locsyms == NULL)
5889 return FALSE;
5890 *locsymsp = locsyms;
5891 }
5892 sym = locsyms + r_symndx;
5893
5894 if (hp != NULL)
5895 *hp = NULL;
5896
5897 if (symp != NULL)
5898 *symp = sym;
5899
5900 if (symsecp != NULL)
5901 {
5902 asection *symsec = NULL;
5903 if ((sym->st_shndx != SHN_UNDEF
5904 && sym->st_shndx < SHN_LORESERVE)
5905 || sym->st_shndx > SHN_HIRESERVE)
5906 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
5907 *symsecp = symsec;
5908 }
5909
e7b938ca 5910 if (tls_maskp != NULL)
411e1bfb
AM		 5911 {
5912 struct got_entry **lgot_ents;
e7b938ca 5913 char *tls_mask;
411e1bfb 5914
e7b938ca 5915 tls_mask = NULL;
411e1bfb
AM		 5916 lgot_ents = elf_local_got_ents (ibfd);
5917 if (lgot_ents != NULL)
5918 {
e7b938ca
AM		 5919 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
5920 tls_mask = &lgot_masks[r_symndx];
411e1bfb 5921 }
e7b938ca 5922 *tls_maskp = tls_mask;
411e1bfb
AM		 5923 }
5924 }
5925 return TRUE;
5926}
5927
e7b938ca 5928/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 5929 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 5930 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 5931
5932static int
0d4792f7
AM		 5933get_tls_mask (char **tls_maskp, unsigned long *toc_symndx,
5934 Elf_Internal_Sym **locsymsp,
4ce794b7 5935 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 5936{
5937 unsigned long r_symndx;
0d4792f7 5938 int next_r;
411e1bfb
AM		 5939 struct elf_link_hash_entry *h;
5940 Elf_Internal_Sym *sym;
5941 asection *sec;
5942 bfd_vma off;
5943
5944 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5945 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 5946 return 0;
411e1bfb 5947
e7b938ca 5948 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM		 5949 || sec == NULL
5950 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 5951 return 1;
411e1bfb
AM		 5952
5953 /* Look inside a TOC section too. */
5954 if (h != NULL)
5955 {
5956 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5957 off = h->root.u.def.value;
5958 }
5959 else
5960 off = sym->st_value;
5961 off += rel->r_addend;
5962 BFD_ASSERT (off % 8 == 0);
5963 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 5964 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 5965 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 5966 return 0;
0d4792f7
AM		 5967 if (toc_symndx != NULL)
5968 *toc_symndx = r_symndx;
5969 if ((h == NULL
5970 || ((h->root.type == bfd_link_hash_defined
5971 || h->root.type == bfd_link_hash_defweak)
f5385ebf 5972 && !h->def_dynamic))
0d4792f7
AM		 5973 && (next_r == -1 || next_r == -2))
5974 return 1 - next_r;
951fd09b 5975 return 1;
411e1bfb
AM		 5976}
5977
754021d0 5978/* Adjust all global syms defined in opd sections. In gcc generated
8387904d 5979 code for the old ABI, these will already have been done. */
754021d0
AM		 5980
5981static bfd_boolean
5982adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
5983{
5984 struct ppc_link_hash_entry *eh;
5985 asection *sym_sec;
5986 long *opd_adjust;
5987
5988 if (h->root.type == bfd_link_hash_indirect)
5989 return TRUE;
5990
5991 if (h->root.type == bfd_link_hash_warning)
5992 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5993
5994 if (h->root.type != bfd_link_hash_defined
5995 && h->root.type != bfd_link_hash_defweak)
5996 return TRUE;
5997
5998 eh = (struct ppc_link_hash_entry *) h;
5999 if (eh->adjust_done)
6000 return TRUE;
6001
6002 sym_sec = eh->elf.root.u.def.section;
4025353c
AM		 6003 opd_adjust = get_opd_info (sym_sec);
6004 if (opd_adjust != NULL)
754021d0 6005 {
3f764659 6006 long adjust = opd_adjust[eh->elf.root.u.def.value / 8];
4025353c
AM		 6007 if (adjust == -1)
6008 {
6009 /* This entry has been deleted. */
433817dd 6010 asection *dsec = ppc64_elf_tdata (sym_sec->owner)->u.deleted_section;
81688140
AM		 6011 if (dsec == NULL)
6012 {
6013 for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next)
6014 if (elf_discarded_section (dsec))
6015 {
433817dd 6016 ppc64_elf_tdata (sym_sec->owner)->u.deleted_section = dsec;
81688140
AM		 6017 break;
6018 }
6019 }
4025353c 6020 eh->elf.root.u.def.value = 0;
81688140 6021 eh->elf.root.u.def.section = dsec;
4025353c
AM		 6022 }
6023 else
6024 eh->elf.root.u.def.value += adjust;
754021d0
AM		 6025 eh->adjust_done = 1;
6026 }
6027 return TRUE;
6028}
6029
8c1d1bb8
AM		 6030/* Handles decrementing dynamic reloc counts for the reloc specified by
6031 R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC
6032 have already been determined. */
6033
6034static bfd_boolean
6035dec_dynrel_count (bfd_vma r_info,
6036 asection *sec,
6037 struct bfd_link_info *info,
6038 Elf_Internal_Sym **local_syms,
6039 struct elf_link_hash_entry *h,
6040 asection *sym_sec)
6041{
6042 enum elf_ppc64_reloc_type r_type;
6043 struct ppc_dyn_relocs *p;
6044 struct ppc_dyn_relocs **pp;
6045
6046 /* Can this reloc be dynamic? This switch, and later tests here
6047 should be kept in sync with the code in check_relocs. */
6048 r_type = ELF64_R_TYPE (r_info);
6049 switch (r_type)
6050 {
6051 default:
6052 return TRUE;
6053
6054 case R_PPC64_TPREL16:
6055 case R_PPC64_TPREL16_LO:
6056 case R_PPC64_TPREL16_HI:
6057 case R_PPC64_TPREL16_HA:
6058 case R_PPC64_TPREL16_DS:
6059 case R_PPC64_TPREL16_LO_DS:
6060 case R_PPC64_TPREL16_HIGHER:
6061 case R_PPC64_TPREL16_HIGHERA:
6062 case R_PPC64_TPREL16_HIGHEST:
6063 case R_PPC64_TPREL16_HIGHESTA:
6064 if (!info->shared)
6065 return TRUE;
6066
6067 case R_PPC64_TPREL64:
6068 case R_PPC64_DTPMOD64:
6069 case R_PPC64_DTPREL64:
6070 case R_PPC64_ADDR64:
6071 case R_PPC64_REL30:
6072 case R_PPC64_REL32:
6073 case R_PPC64_REL64:
6074 case R_PPC64_ADDR14:
6075 case R_PPC64_ADDR14_BRNTAKEN:
6076 case R_PPC64_ADDR14_BRTAKEN:
6077 case R_PPC64_ADDR16:
6078 case R_PPC64_ADDR16_DS:
6079 case R_PPC64_ADDR16_HA:
6080 case R_PPC64_ADDR16_HI:
6081 case R_PPC64_ADDR16_HIGHER:
6082 case R_PPC64_ADDR16_HIGHERA:
6083 case R_PPC64_ADDR16_HIGHEST:
6084 case R_PPC64_ADDR16_HIGHESTA:
6085 case R_PPC64_ADDR16_LO:
6086 case R_PPC64_ADDR16_LO_DS:
6087 case R_PPC64_ADDR24:
6088 case R_PPC64_ADDR32:
6089 case R_PPC64_UADDR16:
6090 case R_PPC64_UADDR32:
6091 case R_PPC64_UADDR64:
6092 case R_PPC64_TOC:
6093 break;
6094 }
6095
6096 if (local_syms != NULL)
6097 {
6098 unsigned long r_symndx;
6099 Elf_Internal_Sym *sym;
6100 bfd *ibfd = sec->owner;
6101
6102 r_symndx = ELF64_R_SYM (r_info);
6103 if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd))
6104 return FALSE;
6105 }
6106
6107 if ((info->shared
6108 && (MUST_BE_DYN_RELOC (r_type)
6109 || (h != NULL
6110 && (!info->symbolic
6111 || h->root.type == bfd_link_hash_defweak
6112 || !h->def_regular))))
6113 || (ELIMINATE_COPY_RELOCS
6114 && !info->shared
6115 && h != NULL
6116 && (h->root.type == bfd_link_hash_defweak
6117 || !h->def_regular)))
6118 ;
6119 else
6120 return TRUE;
6121
6122 if (h != NULL)
6123 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
8c1d1bb8 6124 else
6edfbbad 6125 {
60124e18
AM		 6126 if (sym_sec != NULL)
6127 {
6128 void *vpp = &elf_section_data (sym_sec)->local_dynrel;
6129 pp = (struct ppc_dyn_relocs **) vpp;
6130 }
6131 else
6132 {
6133 void *vpp = &elf_section_data (sec)->local_dynrel;
6134 pp = (struct ppc_dyn_relocs **) vpp;
6135 }
6136
6137 /* elf_gc_sweep may have already removed all dyn relocs associated
6138 with local syms for a given section. Don't report a dynreloc
6139 miscount. */
6140 if (*pp == NULL)
6141 return TRUE;
6edfbbad 6142 }
8c1d1bb8
AM		 6143
6144 while ((p = *pp) != NULL)
6145 {
6146 if (p->sec == sec)
6147 {
6148 if (!MUST_BE_DYN_RELOC (r_type))
6149 p->pc_count -= 1;
6150 p->count -= 1;
6151 if (p->count == 0)
6152 *pp = p->next;
6153 return TRUE;
6154 }
6155 pp = &p->next;
6156 }
6157
6158 (*_bfd_error_handler) (_("dynreloc miscount for %B, section %A"),
6159 sec->owner, sec);
6160 bfd_set_error (bfd_error_bad_value);
6161 return FALSE;
6162}
6163
754021d0
AM		 6164/* Remove unused Official Procedure Descriptor entries. Currently we
6165 only remove those associated with functions in discarded link-once
6166 sections, or weakly defined functions that have been overridden. It
6167 would be possible to remove many more entries for statically linked
6168 applications. */
6169
b34976b6 6170bfd_boolean
3f764659 6171ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info,
b4f4e59f 6172 bfd_boolean no_opd_opt,
3f764659 6173 bfd_boolean non_overlapping)
1e2f5b6e
AM		 6174{
6175 bfd *ibfd;
754021d0 6176 bfd_boolean some_edited = FALSE;
3f764659 6177 asection *need_pad = NULL;
1e2f5b6e 6178
411e1bfb 6179 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 6180 {
6181 asection *sec;
6182 Elf_Internal_Rela *relstart, *rel, *relend;
6183 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 6184 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 6185 struct elf_link_hash_entry **sym_hashes;
6186 bfd_vma offset;
d6fe2dc1 6187 bfd_size_type amt;
4025353c 6188 long *opd_adjust;
3f764659
JJ		 6189 bfd_boolean need_edit, add_aux_fields;
6190 bfd_size_type cnt_16b = 0;
1e2f5b6e
AM		 6191
6192 sec = bfd_get_section_by_name (ibfd, ".opd");
46de2a7c 6193 if (sec == NULL || sec->size == 0)
1e2f5b6e
AM		 6194 continue;
6195
3f764659 6196 amt = sec->size * sizeof (long) / 8;
4025353c
AM		 6197 opd_adjust = get_opd_info (sec);
6198 if (opd_adjust == NULL)
d6fe2dc1 6199 {
4b85d634
AM		 6200 /* check_relocs hasn't been called. Must be a ld -r link
6201 or --just-symbols object. */
b4f4e59f 6202 opd_adjust = bfd_alloc (obfd, amt);
46de2a7c
AM		 6203 if (opd_adjust == NULL)
6204 return FALSE;
4025353c 6205 ppc64_elf_section_data (sec)->opd.adjust = opd_adjust;
d6fe2dc1 6206 }
4025353c 6207 memset (opd_adjust, 0, amt);
1e2f5b6e 6208
b4f4e59f
AM		 6209 if (no_opd_opt)
6210 continue;
6211
4b85d634
AM		 6212 if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS)
6213 continue;
6214
1e2f5b6e
AM		 6215 if (sec->output_section == bfd_abs_section_ptr)
6216 continue;
6217
6218 /* Look through the section relocs. */
6219 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
6220 continue;
6221
6cdc0ccc 6222 local_syms = NULL;
1e2f5b6e
AM		 6223 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6224 sym_hashes = elf_sym_hashes (ibfd);
6225
6226 /* Read the relocations. */
4ce794b7 6227 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6228 info->keep_memory);
1e2f5b6e 6229 if (relstart == NULL)
b34976b6 6230 return FALSE;
1e2f5b6e
AM		 6231
6232 /* First run through the relocs to check they are sane, and to
6233 determine whether we need to edit this opd section. */
b34976b6 6234 need_edit = FALSE;
3f764659 6235 need_pad = sec;
1e2f5b6e
AM		 6236 offset = 0;
6237 relend = relstart + sec->reloc_count;
50bc7936 6238 for (rel = relstart; rel < relend; )
1e2f5b6e 6239 {
04c9666a 6240 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 6241 unsigned long r_symndx;
6242 asection *sym_sec;
6243 struct elf_link_hash_entry *h;
6244 Elf_Internal_Sym *sym;
6245
3f764659 6246 /* .opd contains a regular array of 16 or 24 byte entries. We're
1e2f5b6e
AM		 6247 only interested in the reloc pointing to a function entry
6248 point. */
50bc7936
AM		 6249 if (rel->r_offset != offset
6250 || rel + 1 >= relend
6251 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM		 6252 {
6253 /* If someone messes with .opd alignment then after a
6254 "ld -r" we might have padding in the middle of .opd.
6255 Also, there's nothing to prevent someone putting
6256 something silly in .opd with the assembler. No .opd
b34976b6 6257 optimization for them! */
3f764659 6258 broken_opd:
1e2f5b6e 6259 (*_bfd_error_handler)
d003868e 6260 (_("%B: .opd is not a regular array of opd entries"), ibfd);
b34976b6 6261 need_edit = FALSE;
1e2f5b6e
AM		 6262 break;
6263 }
6264
50bc7936
AM		 6265 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
6266 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
6267 {
6268 (*_bfd_error_handler)
d003868e
AM		 6269 (_("%B: unexpected reloc type %u in .opd section"),
6270 ibfd, r_type);
50bc7936
AM		 6271 need_edit = FALSE;
6272 break;
6273 }
6274
1e2f5b6e 6275 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 6276 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6277 r_symndx, ibfd))
50bc7936 6278 goto error_ret;
1e2f5b6e
AM		 6279
6280 if (sym_sec == NULL || sym_sec->owner == NULL)
6281 {
411e1bfb
AM		 6282 const char *sym_name;
6283 if (h != NULL)
6284 sym_name = h->root.root.string;
6285 else
26c61ae5
L		 6286 sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym,
6287 sym_sec);
411e1bfb 6288
1e2f5b6e 6289 (*_bfd_error_handler)
d003868e
AM		 6290 (_("%B: undefined sym `%s' in .opd section"),
6291 ibfd, sym_name);
b34976b6 6292 need_edit = FALSE;
1e2f5b6e
AM		 6293 break;
6294 }
6295
51020317
AM		 6296 /* opd entries are always for functions defined in the
6297 current input bfd. If the symbol isn't defined in the
6298 input bfd, then we won't be using the function in this
6299 bfd; It must be defined in a linkonce section in another
6300 bfd, or is weak. It's also possible that we are
6301 discarding the function due to a linker script /DISCARD/,
6302 which we test for via the output_section. */
6303 if (sym_sec->owner != ibfd
6304 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 6305 need_edit = TRUE;
1e2f5b6e 6306
50bc7936 6307 rel += 2;
3f764659
JJ		 6308 if (rel == relend
6309 || (rel + 1 == relend && rel->r_offset == offset + 16))
6310 {
6311 if (sec->size == offset + 24)
6312 {
6313 need_pad = NULL;
6314 break;
6315 }
6316 if (rel == relend && sec->size == offset + 16)
6317 {
6318 cnt_16b++;
6319 break;
6320 }
6321 goto broken_opd;
6322 }
6323
6324 if (rel->r_offset == offset + 24)
6325 offset += 24;
6326 else if (rel->r_offset != offset + 16)
6327 goto broken_opd;
6328 else if (rel + 1 < relend
6329 && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64
6330 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC)
6331 {
6332 offset += 16;
6333 cnt_16b++;
6334 }
6335 else if (rel + 2 < relend
6336 && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64
6337 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)
6338 {
6339 offset += 24;
6340 rel += 1;
6341 }
6342 else
6343 goto broken_opd;
1e2f5b6e
AM		 6344 }
6345
3f764659
JJ		 6346 add_aux_fields = non_overlapping && cnt_16b > 0;
6347
6348 if (need_edit || add_aux_fields)
1e2f5b6e
AM		 6349 {
6350 Elf_Internal_Rela *write_rel;
6351 bfd_byte *rptr, *wptr;
3f764659 6352 bfd_byte *new_contents = NULL;
b34976b6 6353 bfd_boolean skip;
3f764659 6354 long opd_ent_size;
1e2f5b6e
AM		 6355
6356 /* This seems a waste of time as input .opd sections are all
6357 zeros as generated by gcc, but I suppose there's no reason
6358 this will always be so. We might start putting something in
6359 the third word of .opd entries. */
6360 if ((sec->flags & SEC_IN_MEMORY) == 0)
6361 {
eea6121a
AM		 6362 bfd_byte *loc;
6363 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 6364 {
eea6121a
AM		 6365 if (loc != NULL)
6366 free (loc);
50bc7936 6367 error_ret:
6cdc0ccc
AM		 6368 if (local_syms != NULL
6369 && symtab_hdr->contents != (unsigned char *) local_syms)
6370 free (local_syms);
6cdc0ccc
AM		 6371 if (elf_section_data (sec)->relocs != relstart)
6372 free (relstart);
b34976b6 6373 return FALSE;
6cdc0ccc 6374 }
1e2f5b6e
AM		 6375 sec->contents = loc;
6376 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6377 }
6378
6379 elf_section_data (sec)->relocs = relstart;
6380
3f764659 6381 new_contents = sec->contents;
3f764659
JJ		 6382 if (add_aux_fields)
6383 {
6384 new_contents = bfd_malloc (sec->size + cnt_16b * 8);
6385 if (new_contents == NULL)
6386 return FALSE;
6387 need_pad = FALSE;
3f764659 6388 }
b4f4e59f
AM		 6389 wptr = new_contents;
6390 rptr = sec->contents;
3f764659 6391
1e2f5b6e 6392 write_rel = relstart;
b34976b6 6393 skip = FALSE;
1e2f5b6e 6394 offset = 0;
3f764659 6395 opd_ent_size = 0;
1e2f5b6e
AM		 6396 for (rel = relstart; rel < relend; rel++)
6397 {
50bc7936
AM		 6398 unsigned long r_symndx;
6399 asection *sym_sec;
6400 struct elf_link_hash_entry *h;
6401 Elf_Internal_Sym *sym;
6402
6403 r_symndx = ELF64_R_SYM (rel->r_info);
6404 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 6405 r_symndx, ibfd))
50bc7936
AM		 6406 goto error_ret;
6407
1e2f5b6e
AM		 6408 if (rel->r_offset == offset)
6409 {
50bc7936 6410 struct ppc_link_hash_entry *fdh = NULL;
3f764659
JJ		 6411
6412 /* See if the .opd entry is full 24 byte or
6413 16 byte (with fd_aux entry overlapped with next
6414 fd_func). */
6415 opd_ent_size = 24;
6416 if ((rel + 2 == relend && sec->size == offset + 16)
6417 || (rel + 3 < relend
6418 && rel[2].r_offset == offset + 16
6419 && rel[3].r_offset == offset + 24
6420 && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64
6421 && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC))
6422 opd_ent_size = 16;
6423
4025353c
AM		 6424 if (h != NULL
6425 && h->root.root.string[0] == '.')
c4f68ce3
AM		 6426 {
6427 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
6428 ppc_hash_table (info));
6429 if (fdh != NULL
6430 && fdh->elf.root.type != bfd_link_hash_defined
6431 && fdh->elf.root.type != bfd_link_hash_defweak)
6432 fdh = NULL;
6433 }
1e2f5b6e 6434
51020317
AM		 6435 skip = (sym_sec->owner != ibfd
6436 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 6437 if (skip)
6438 {
4025353c 6439 if (fdh != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 6440 {
6441 /* Arrange for the function descriptor sym
6442 to be dropped. */
d6fe2dc1
AM		 6443 fdh->elf.root.u.def.value = 0;
6444 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7 6445 }
3f764659 6446 opd_adjust[rel->r_offset / 8] = -1;
a4aa0fb7
AM		 6447 }
6448 else
1e2f5b6e
AM		 6449 {
6450 /* We'll be keeping this opd entry. */
6451
4025353c 6452 if (fdh != NULL)
1e2f5b6e 6453 {
754021d0
AM		 6454 /* Redefine the function descriptor symbol to
6455 this location in the opd section. It is
6456 necessary to update the value here rather
6457 than using an array of adjustments as we do
6458 for local symbols, because various places
6459 in the generic ELF code use the value
6460 stored in u.def.value. */
3f764659 6461 fdh->elf.root.u.def.value = wptr - new_contents;
754021d0 6462 fdh->adjust_done = 1;
1e2f5b6e 6463 }
754021d0
AM		 6464
6465 /* Local syms are a bit tricky. We could
6466 tweak them as they can be cached, but
6467 we'd need to look through the local syms
6468 for the function descriptor sym which we
6469 don't have at the moment. So keep an
6470 array of adjustments. */
3f764659
JJ		 6471 opd_adjust[rel->r_offset / 8]
6472 = (wptr - new_contents) - (rptr - sec->contents);
1e2f5b6e
AM		 6473
6474 if (wptr != rptr)
3f764659
JJ		 6475 memcpy (wptr, rptr, opd_ent_size);
6476 wptr += opd_ent_size;
6477 if (add_aux_fields && opd_ent_size == 16)
6478 {
6479 memset (wptr, '\0', 8);
6480 wptr += 8;
6481 }
1e2f5b6e 6482 }
3f764659
JJ		 6483 rptr += opd_ent_size;
6484 offset += opd_ent_size;
1e2f5b6e
AM		 6485 }
6486
50bc7936
AM		 6487 if (skip)
6488 {
60124e18
AM		 6489 if (!NO_OPD_RELOCS
6490 && !info->relocatable
18d944df
AM		 6491 && !dec_dynrel_count (rel->r_info, sec, info,
6492 NULL, h, sym_sec))
8c1d1bb8 6493 goto error_ret;
50bc7936
AM		 6494 }
6495 else
1e2f5b6e 6496 {
50bc7936
AM		 6497 /* We need to adjust any reloc offsets to point to the
6498 new opd entries. While we're at it, we may as well
6499 remove redundant relocs. */
3f764659 6500 rel->r_offset += opd_adjust[(offset - opd_ent_size) / 8];
1e2f5b6e
AM		 6501 if (write_rel != rel)
6502 memcpy (write_rel, rel, sizeof (*rel));
6503 ++write_rel;
6504 }
6505 }
6506
3f764659 6507 sec->size = wptr - new_contents;
1e2f5b6e 6508 sec->reloc_count = write_rel - relstart;
3f764659
JJ		 6509 if (add_aux_fields)
6510 {
6511 free (sec->contents);
6512 sec->contents = new_contents;
6513 }
6514
cdcf6e38
AM		 6515 /* Fudge the size too, as this is used later in
6516 elf_bfd_final_link if we are emitting relocs. */
6517 elf_section_data (sec)->rel_hdr.sh_size
6518 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
6519 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
754021d0 6520 some_edited = TRUE;
1e2f5b6e 6521 }
6cdc0ccc 6522 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 6523 free (relstart);
6cdc0ccc 6524
411e1bfb
AM		 6525 if (local_syms != NULL
6526 && symtab_hdr->contents != (unsigned char *) local_syms)
6527 {
6528 if (!info->keep_memory)
6529 free (local_syms);
6530 else
6531 symtab_hdr->contents = (unsigned char *) local_syms;
6532 }
6533 }
6534
754021d0
AM		 6535 if (some_edited)
6536 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
6537
3f764659
JJ		 6538 /* If we are doing a final link and the last .opd entry is just 16 byte
6539 long, add a 8 byte padding after it. */
6540 if (need_pad != NULL && !info->relocatable)
6541 {
6542 bfd_byte *p;
6543
6544 if ((need_pad->flags & SEC_IN_MEMORY) == 0)
6545 {
6546 BFD_ASSERT (need_pad->size > 0);
6547
6548 p = bfd_malloc (need_pad->size + 8);
6549 if (p == NULL)
6550 return FALSE;
699733f6 6551
3f764659
JJ		 6552 if (! bfd_get_section_contents (need_pad->owner, need_pad,
6553 p, 0, need_pad->size))
6554 return FALSE;
6555
6556 need_pad->contents = p;
6557 need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
6558 }
6559 else
6560 {
6561 p = bfd_realloc (need_pad->contents, need_pad->size + 8);
6562 if (p == NULL)
6563 return FALSE;
6564
6565 need_pad->contents = p;
6566 }
6567
6568 memset (need_pad->contents + need_pad->size, 0, 8);
6569 need_pad->size += 8;
6570 }
6571
411e1bfb
AM		 6572 return TRUE;
6573}
6574
e1918d23 6575/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 6576
e1918d23 6577asection *
4ce794b7 6578ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb 6579{
411e1bfb
AM		 6580 struct ppc_link_hash_table *htab;
6581
411e1bfb 6582 htab = ppc_hash_table (info);
a48ebf4d
AM		 6583 if (htab->tls_get_addr != NULL)
6584 {
8387904d 6585 struct ppc_link_hash_entry *h = htab->tls_get_addr;
a48ebf4d 6586
8387904d
AM		 6587 while (h->elf.root.type == bfd_link_hash_indirect
6588 || h->elf.root.type == bfd_link_hash_warning)
6589 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
a48ebf4d
AM		 6590
6591 htab->tls_get_addr = h;
8387904d
AM		 6592
6593 if (htab->tls_get_addr_fd == NULL
6594 && h->oh != NULL
c4f68ce3
AM		 6595 && h->oh->is_func_descriptor
6596 && (h->oh->elf.root.type == bfd_link_hash_defined
6597 || h->oh->elf.root.type == bfd_link_hash_defweak))
8387904d
AM		 6598 htab->tls_get_addr_fd = h->oh;
6599 }
6600
6601 if (htab->tls_get_addr_fd != NULL)
6602 {
6603 struct ppc_link_hash_entry *h = htab->tls_get_addr_fd;
6604
6605 while (h->elf.root.type == bfd_link_hash_indirect
6606 || h->elf.root.type == bfd_link_hash_warning)
6607 h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link;
6608
6609 htab->tls_get_addr_fd = h;
a48ebf4d
AM		 6610 }
6611
e1918d23 6612 return _bfd_elf_tls_setup (obfd, info);
951fd09b 6613}
411e1bfb 6614
951fd09b
AM		 6615/* Run through all the TLS relocs looking for optimization
6616 opportunities. The linker has been hacked (see ppc64elf.em) to do
6617 a preliminary section layout so that we know the TLS segment
6618 offsets. We can't optimize earlier because some optimizations need
6619 to know the tp offset, and we need to optimize before allocating
6620 dynamic relocations. */
6621
6622bfd_boolean
4ce794b7 6623ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 6624{
6625 bfd *ibfd;
6626 asection *sec;
6627 struct ppc_link_hash_table *htab;
6628
1049f94e 6629 if (info->relocatable || info->shared)
411e1bfb
AM		 6630 return TRUE;
6631
951fd09b 6632 htab = ppc_hash_table (info);
411e1bfb
AM		 6633 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6634 {
6635 Elf_Internal_Sym *locsyms = NULL;
6636
6637 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6638 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
6639 {
6640 Elf_Internal_Rela *relstart, *rel, *relend;
6641 int expecting_tls_get_addr;
6642
6643 /* Read the relocations. */
4ce794b7 6644 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 6645 info->keep_memory);
411e1bfb
AM		 6646 if (relstart == NULL)
6647 return FALSE;
6648
6649 expecting_tls_get_addr = 0;
6650 relend = relstart + sec->reloc_count;
6651 for (rel = relstart; rel < relend; rel++)
6652 {
6653 enum elf_ppc64_reloc_type r_type;
6654 unsigned long r_symndx;
6655 struct elf_link_hash_entry *h;
6656 Elf_Internal_Sym *sym;
6657 asection *sym_sec;
e7b938ca
AM		 6658 char *tls_mask;
6659 char tls_set, tls_clear, tls_type = 0;
411e1bfb 6660 bfd_vma value;
951fd09b 6661 bfd_boolean ok_tprel, is_local;
411e1bfb
AM		 6662
6663 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 6664 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM		 6665 r_symndx, ibfd))
6666 {
6667 err_free_rel:
6668 if (elf_section_data (sec)->relocs != relstart)
6669 free (relstart);
6670 if (locsyms != NULL
6671 && (elf_tdata (ibfd)->symtab_hdr.contents
6672 != (unsigned char *) locsyms))
6673 free (locsyms);
6674 return FALSE;
6675 }
6676
6677 if (h != NULL)
6678 {
6679 if (h->root.type != bfd_link_hash_defined
6680 && h->root.type != bfd_link_hash_defweak)
6681 continue;
6682 value = h->root.u.def.value;
6683 }
6684 else
4025353c
AM		 6685 /* Symbols referenced by TLS relocs must be of type
6686 STT_TLS. So no need for .opd local sym adjust. */
6687 value = sym->st_value;
951fd09b 6688
411e1bfb 6689 ok_tprel = FALSE;
951fd09b
AM		 6690 is_local = FALSE;
6691 if (h == NULL
f5385ebf 6692 || !h->def_dynamic)
411e1bfb 6693 {
951fd09b 6694 is_local = TRUE;
411e1bfb
AM		 6695 value += sym_sec->output_offset;
6696 value += sym_sec->output_section->vma;
e1918d23 6697 value -= htab->elf.tls_sec->vma;
411e1bfb
AM		 6698 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
6699 < (bfd_vma) 1 << 32);
6700 }
6701
4ce794b7 6702 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM		 6703 switch (r_type)
6704 {
6705 case R_PPC64_GOT_TLSLD16:
6706 case R_PPC64_GOT_TLSLD16_LO:
6707 case R_PPC64_GOT_TLSLD16_HI:
6708 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM		 6709 /* These relocs should never be against a symbol
6710 defined in a shared lib. Leave them alone if
6711 that turns out to be the case. */
e717da7e 6712 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM		 6713 if (!is_local)
6714 continue;
6715
951fd09b
AM		 6716 /* LD -> LE */
6717 tls_set = 0;
6718 tls_clear = TLS_LD;
e7b938ca 6719 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 6720 expecting_tls_get_addr = 1;
6721 break;
6722
6723 case R_PPC64_GOT_TLSGD16:
6724 case R_PPC64_GOT_TLSGD16_LO:
6725 case R_PPC64_GOT_TLSGD16_HI:
6726 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 6727 if (ok_tprel)
411e1bfb
AM		 6728 /* GD -> LE */
6729 tls_set = 0;
6730 else
6731 /* GD -> IE */
951fd09b
AM		 6732 tls_set = TLS_TLS | TLS_TPRELGD;
6733 tls_clear = TLS_GD;
e7b938ca 6734 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 6735 expecting_tls_get_addr = 1;
6736 break;
6737
6738 case R_PPC64_GOT_TPREL16_DS:
6739 case R_PPC64_GOT_TPREL16_LO_DS:
6740 case R_PPC64_GOT_TPREL16_HI:
6741 case R_PPC64_GOT_TPREL16_HA:
6742 expecting_tls_get_addr = 0;
6743 if (ok_tprel)
6744 {
6745 /* IE -> LE */
6746 tls_set = 0;
6747 tls_clear = TLS_TPREL;
e7b938ca 6748 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM		 6749 break;
6750 }
6751 else
6752 continue;
6753
6754 case R_PPC64_REL14:
6755 case R_PPC64_REL14_BRTAKEN:
6756 case R_PPC64_REL14_BRNTAKEN:
6757 case R_PPC64_REL24:
6758 if (h != NULL
8387904d
AM		 6759 && (h == &htab->tls_get_addr->elf
6760 || h == &htab->tls_get_addr_fd->elf))
411e1bfb
AM		 6761 {
6762 if (!expecting_tls_get_addr
6763 && rel != relstart
6764 && ((ELF64_R_TYPE (rel[-1].r_info)
6765 == R_PPC64_TOC16)
6766 || (ELF64_R_TYPE (rel[-1].r_info)
6767 == R_PPC64_TOC16_LO)))
6768 {
6769 /* Check for toc tls entries. */
6770 char *toc_tls;
951fd09b 6771 int retval;
411e1bfb 6772
0d4792f7 6773 retval = get_tls_mask (&toc_tls, NULL, &locsyms,
951fd09b
AM		 6774 rel - 1, ibfd);
6775 if (retval == 0)
411e1bfb
AM		 6776 goto err_free_rel;
6777 if (toc_tls != NULL)
951fd09b 6778 expecting_tls_get_addr = retval > 1;
411e1bfb
AM		 6779 }
6780
6781 if (expecting_tls_get_addr)
6782 {
6783 struct plt_entry *ent;
6784 for (ent = h->plt.plist; ent; ent = ent->next)
6785 if (ent->addend == 0)
6786 {
6787 if (ent->plt.refcount > 0)
6788 ent->plt.refcount -= 1;
6789 break;
6790 }
6791 }
6792 }
6793 expecting_tls_get_addr = 0;
6794 continue;
6795
6796 case R_PPC64_TPREL64:
6797 expecting_tls_get_addr = 0;
6798 if (ok_tprel)
6799 {
6800 /* IE -> LE */
6801 tls_set = TLS_EXPLICIT;
6802 tls_clear = TLS_TPREL;
6803 break;
6804 }
6805 else
6806 continue;
6807
6808 case R_PPC64_DTPMOD64:
6809 expecting_tls_get_addr = 0;
951fd09b
AM		 6810 if (rel + 1 < relend
6811 && (rel[1].r_info
6812 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
6813 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 6814 {
951fd09b 6815 if (ok_tprel)
411e1bfb 6816 /* GD -> LE */
951fd09b 6817 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM		 6818 else
6819 /* GD -> IE */
951fd09b
AM		 6820 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
6821 tls_clear = TLS_GD;
411e1bfb
AM		 6822 }
6823 else
6824 {
951fd09b
AM		 6825 if (!is_local)
6826 continue;
6827
6828 /* LD -> LE */
6829 tls_set = TLS_EXPLICIT;
6830 tls_clear = TLS_LD;
411e1bfb
AM		 6831 }
6832 break;
6833
6834 default:
6835 expecting_tls_get_addr = 0;
6836 continue;
6837 }
6838
6839 if ((tls_set & TLS_EXPLICIT) == 0)
6840 {
6841 struct got_entry *ent;
6842
6843 /* Adjust got entry for this reloc. */
6844 if (h != NULL)
6845 ent = h->got.glist;
6846 else
6847 ent = elf_local_got_ents (ibfd)[r_symndx];
6848
6849 for (; ent != NULL; ent = ent->next)
6850 if (ent->addend == rel->r_addend
e717da7e 6851 && ent->owner == ibfd
e7b938ca 6852 && ent->tls_type == tls_type)
411e1bfb
AM		 6853 break;
6854 if (ent == NULL)
6855 abort ();
6856
6857 if (tls_set == 0)
6858 {
6859 /* We managed to get rid of a got entry. */
6860 if (ent->got.refcount > 0)
6861 ent->got.refcount -= 1;
6862 }
411e1bfb 6863 }
8c1d1bb8 6864 else
411e1bfb 6865 {
8c1d1bb8
AM		 6866 /* If we got rid of a DTPMOD/DTPREL reloc pair then
6867 we'll lose one or two dyn relocs. */
6868 if (!dec_dynrel_count (rel->r_info, sec, info,
6869 NULL, h, sym_sec))
6870 return FALSE;
6871
6872 if (tls_set == (TLS_EXPLICIT | TLS_GD))
6873 {
6874 if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
6875 NULL, h, sym_sec))
6876 return FALSE;
6877 }
411e1bfb
AM		 6878 }
6879
e7b938ca
AM		 6880 *tls_mask |= tls_set;
6881 *tls_mask &= ~tls_clear;
411e1bfb
AM		 6882 }
6883
6884 if (elf_section_data (sec)->relocs != relstart)
6885 free (relstart);
6886 }
6887
6888 if (locsyms != NULL
6889 && (elf_tdata (ibfd)->symtab_hdr.contents
6890 != (unsigned char *) locsyms))
6cdc0ccc
AM		 6891 {
6892 if (!info->keep_memory)
411e1bfb 6893 free (locsyms);
6cdc0ccc 6894 else
411e1bfb 6895 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 6896 }
1e2f5b6e 6897 }
b34976b6 6898 return TRUE;
1e2f5b6e 6899}
b34976b6 6900
c5614fa4
AM		 6901/* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust
6902 the values of any global symbols in a toc section that has been
6903 edited. Globals in toc sections should be a rarity, so this function
6904 sets a flag if any are found in toc sections other than the one just
6905 edited, so that futher hash table traversals can be avoided. */
6906
6907struct adjust_toc_info
6908{
6909 asection *toc;
6910 unsigned long *skip;
6911 bfd_boolean global_toc_syms;
6912};
6913
6914static bfd_boolean
6915adjust_toc_syms (struct elf_link_hash_entry *h, void *inf)
6916{
6917 struct ppc_link_hash_entry *eh;
6918 struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf;
6919
6920 if (h->root.type == bfd_link_hash_indirect)
6921 return TRUE;
6922
6923 if (h->root.type == bfd_link_hash_warning)
6924 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6925
6926 if (h->root.type != bfd_link_hash_defined
6927 && h->root.type != bfd_link_hash_defweak)
6928 return TRUE;
6929
6930 eh = (struct ppc_link_hash_entry *) h;
6931 if (eh->adjust_done)
6932 return TRUE;
6933
6934 if (eh->elf.root.u.def.section == toc_inf->toc)
6935 {
6936 unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3];
6937 if (skip != (unsigned long) -1)
6938 eh->elf.root.u.def.value -= skip;
6939 else
6940 {
6941 (*_bfd_error_handler)
6942 (_("%s defined in removed toc entry"), eh->elf.root.root.string);
6943 eh->elf.root.u.def.section = &bfd_abs_section;
6944 eh->elf.root.u.def.value = 0;
6945 }
6946 eh->adjust_done = 1;
6947 }
6948 else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0)
6949 toc_inf->global_toc_syms = TRUE;
6950
6951 return TRUE;
6952}
6953
6954/* Examine all relocs referencing .toc sections in order to remove
6955 unused .toc entries. */
6956
6957bfd_boolean
6958ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
6959{
6960 bfd *ibfd;
6961 struct adjust_toc_info toc_inf;
6962
6963 toc_inf.global_toc_syms = TRUE;
6964 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6965 {
6966 asection *toc, *sec;
6967 Elf_Internal_Shdr *symtab_hdr;
6968 Elf_Internal_Sym *local_syms;
6969 struct elf_link_hash_entry **sym_hashes;
92b7a70f 6970 Elf_Internal_Rela *relstart, *rel;
c5614fa4
AM		 6971 unsigned long *skip, *drop;
6972 unsigned char *used;
6973 unsigned char *keep, last, some_unused;
6974
6975 toc = bfd_get_section_by_name (ibfd, ".toc");
6976 if (toc == NULL
92b7a70f 6977 || toc->size == 0
c5614fa4
AM		 6978 || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS
6979 || elf_discarded_section (toc))
6980 continue;
6981
6982 local_syms = NULL;
6983 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
6984 sym_hashes = elf_sym_hashes (ibfd);
6985
6986 /* Look at sections dropped from the final link. */
6987 skip = NULL;
6988 relstart = NULL;
6989 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
6990 {
6991 if (sec->reloc_count == 0
6992 || !elf_discarded_section (sec)
6993 || get_opd_info (sec)
6994 || (sec->flags & SEC_ALLOC) == 0
6995 || (sec->flags & SEC_DEBUGGING) != 0)
6996 continue;
6997
6998 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE);
6999 if (relstart == NULL)
7000 goto error_ret;
7001
7002 /* Run through the relocs to see which toc entries might be
7003 unused. */
7004 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7005 {
7006 enum elf_ppc64_reloc_type r_type;
7007 unsigned long r_symndx;
7008 asection *sym_sec;
7009 struct elf_link_hash_entry *h;
7010 Elf_Internal_Sym *sym;
7011 bfd_vma val;
7012
7013 r_type = ELF64_R_TYPE (rel->r_info);
7014 switch (r_type)
7015 {
7016 default:
7017 continue;
7018
7019 case R_PPC64_TOC16:
7020 case R_PPC64_TOC16_LO:
7021 case R_PPC64_TOC16_HI:
7022 case R_PPC64_TOC16_HA:
7023 case R_PPC64_TOC16_DS:
7024 case R_PPC64_TOC16_LO_DS:
7025 break;
7026 }
7027
7028 r_symndx = ELF64_R_SYM (rel->r_info);
7029 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7030 r_symndx, ibfd))
7031 goto error_ret;
7032
7033 if (sym_sec != toc)
7034 continue;
7035
7036 if (h != NULL)
7037 val = h->root.u.def.value;
7038 else
7039 val = sym->st_value;
7040 val += rel->r_addend;
7041
7042 if (val >= toc->size)
7043 continue;
7044
7045 /* Anything in the toc ought to be aligned to 8 bytes.
7046 If not, don't mark as unused. */
7047 if (val & 7)
7048 continue;
7049
7050 if (skip == NULL)
7051 {
7052 skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8);
7053 if (skip == NULL)
7054 goto error_ret;
7055 }
7056
7057 skip[val >> 3] = 1;
7058 }
7059
7060 if (elf_section_data (sec)->relocs != relstart)
7061 free (relstart);
7062 }
7063
7064 if (skip == NULL)
7065 continue;
7066
7067 used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8);
7068 if (used == NULL)
7069 {
7070 error_ret:
7071 if (local_syms != NULL
7072 && symtab_hdr->contents != (unsigned char *) local_syms)
7073 free (local_syms);
7074 if (sec != NULL
7075 && relstart != NULL
7076 && elf_section_data (sec)->relocs != relstart)
7077 free (relstart);
7078 if (skip != NULL)
7079 free (skip);
7080 return FALSE;
7081 }
7082
7083 /* Now check all kept sections that might reference the toc. */
7084 for (sec = ibfd->sections;
7085 sec != NULL;
7086 /* Check the toc itself last. */
7087 sec = (sec == toc ? NULL
7088 : sec->next == toc && sec->next->next ? sec->next->next
7089 : sec->next == NULL ? toc
7090 : sec->next))
7091 {
7092 int repeat;
7093
7094 if (sec->reloc_count == 0
7095 || elf_discarded_section (sec)
7096 || get_opd_info (sec)
7097 || (sec->flags & SEC_ALLOC) == 0
7098 || (sec->flags & SEC_DEBUGGING) != 0)
7099 continue;
7100
7101 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE);
7102 if (relstart == NULL)
7103 goto error_ret;
7104
7105 /* Mark toc entries referenced as used. */
7106 repeat = 0;
7107 do
7108 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7109 {
7110 enum elf_ppc64_reloc_type r_type;
7111 unsigned long r_symndx;
7112 asection *sym_sec;
7113 struct elf_link_hash_entry *h;
7114 Elf_Internal_Sym *sym;
7115 bfd_vma val;
7116
7117 r_type = ELF64_R_TYPE (rel->r_info);
7118 switch (r_type)
7119 {
7120 case R_PPC64_TOC16:
7121 case R_PPC64_TOC16_LO:
7122 case R_PPC64_TOC16_HI:
7123 case R_PPC64_TOC16_HA:
7124 case R_PPC64_TOC16_DS:
7125 case R_PPC64_TOC16_LO_DS:
7126 /* In case we're taking addresses of toc entries. */
7127 case R_PPC64_ADDR64:
7128 break;
7129
7130 default:
7131 continue;
7132 }
7133
7134 r_symndx = ELF64_R_SYM (rel->r_info);
7135 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7136 r_symndx, ibfd))
7137 {
7138 free (used);
7139 goto error_ret;
7140 }
7141
7142 if (sym_sec != toc)
7143 continue;
7144
7145 if (h != NULL)
7146 val = h->root.u.def.value;
7147 else
7148 val = sym->st_value;
7149 val += rel->r_addend;
7150
7151 if (val >= toc->size)
7152 continue;
7153
7154 /* For the toc section, we only mark as used if
7155 this entry itself isn't unused. */
7156 if (sec == toc
7157 && !used[val >> 3]
7158 && (used[rel->r_offset >> 3]
7159 || !skip[rel->r_offset >> 3]))
7160 /* Do all the relocs again, to catch reference
7161 chains. */
7162 repeat = 1;
7163
7164 used[val >> 3] = 1;
7165 }
7166 while (repeat);
7167 }
7168
7169 /* Merge the used and skip arrays. Assume that TOC
7170 doublewords not appearing as either used or unused belong
7171 to to an entry more than one doubleword in size. */
7172 for (drop = skip, keep = used, last = 0, some_unused = 0;
7173 drop < skip + (toc->size + 7) / 8;
7174 ++drop, ++keep)
7175 {
7176 if (*keep)
7177 {
7178 *drop = 0;
7179 last = 0;
7180 }
7181 else if (*drop)
7182 {
7183 some_unused = 1;
7184 last = 1;
7185 }
7186 else
7187 *drop = last;
7188 }
7189
7190 free (used);
7191
7192 if (some_unused)
7193 {
7194 bfd_byte *contents, *src;
7195 unsigned long off;
7196
7197 /* Shuffle the toc contents, and at the same time convert the
7198 skip array from booleans into offsets. */
7199 if (!bfd_malloc_and_get_section (ibfd, toc, &contents))
7200 goto error_ret;
7201
7202 elf_section_data (toc)->this_hdr.contents = contents;
7203
7204 for (src = contents, off = 0, drop = skip;
7205 src < contents + toc->size;
7206 src += 8, ++drop)
7207 {
7208 if (*drop)
7209 {
7210 *drop = (unsigned long) -1;
7211 off += 8;
7212 }
7213 else if (off != 0)
7214 {
7215 *drop = off;
7216 memcpy (src - off, src, 8);
7217 }
7218 }
7219 toc->rawsize = toc->size;
7220 toc->size = src - contents - off;
7221
92b7a70f
AM		 7222 if (toc->reloc_count != 0)
7223 {
7224 Elf_Internal_Rela *wrel;
7225 bfd_size_type sz;
c5614fa4 7226
92b7a70f
AM		 7227 /* Read toc relocs. */
7228 relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL,
7229 TRUE);
7230 if (relstart == NULL)
7231 goto error_ret;
7232
7233 /* Remove unused toc relocs, and adjust those we keep. */
7234 wrel = relstart;
7235 for (rel = relstart; rel < relstart + toc->reloc_count; ++rel)
7236 if (skip[rel->r_offset >> 3] != (unsigned long) -1)
7237 {
7238 wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3];
7239 wrel->r_info = rel->r_info;
7240 wrel->r_addend = rel->r_addend;
7241 ++wrel;
7242 }
8c1d1bb8
AM		 7243 else if (!dec_dynrel_count (rel->r_info, toc, info,
7244 &local_syms, NULL, NULL))
7245 goto error_ret;
35090471 7246
92b7a70f
AM		 7247 toc->reloc_count = wrel - relstart;
7248 sz = elf_section_data (toc)->rel_hdr.sh_entsize;
7249 elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz;
7250 BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL);
7251 }
c5614fa4
AM		 7252
7253 /* Adjust addends for relocs against the toc section sym. */
7254 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
7255 {
7256 if (sec->reloc_count == 0
7257 || elf_discarded_section (sec))
7258 continue;
7259
7260 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
7261 TRUE);
7262 if (relstart == NULL)
7263 goto error_ret;
7264
7265 for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
7266 {
7267 enum elf_ppc64_reloc_type r_type;
7268 unsigned long r_symndx;
7269 asection *sym_sec;
7270 struct elf_link_hash_entry *h;
7271 Elf_Internal_Sym *sym;
7272
7273 r_type = ELF64_R_TYPE (rel->r_info);
7274 switch (r_type)
7275 {
7276 default:
7277 continue;
7278
7279 case R_PPC64_TOC16:
7280 case R_PPC64_TOC16_LO:
7281 case R_PPC64_TOC16_HI:
7282 case R_PPC64_TOC16_HA:
7283 case R_PPC64_TOC16_DS:
7284 case R_PPC64_TOC16_LO_DS:
7285 case R_PPC64_ADDR64:
7286 break;
7287 }
7288
7289 r_symndx = ELF64_R_SYM (rel->r_info);
7290 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
7291 r_symndx, ibfd))
7292 goto error_ret;
7293
7294 if (sym_sec != toc || h != NULL || sym->st_value != 0)
7295 continue;
7296
7297 rel->r_addend -= skip[rel->r_addend >> 3];
7298 }
7299 }
7300
7301 /* We shouldn't have local or global symbols defined in the TOC,
7302 but handle them anyway. */
7303 if (local_syms != NULL)
7304 {
7305 Elf_Internal_Sym *sym;
7306
7307 for (sym = local_syms;
7308 sym < local_syms + symtab_hdr->sh_info;
7309 ++sym)
7310 if (sym->st_shndx != SHN_UNDEF
7311 && (sym->st_shndx < SHN_LORESERVE
7312 || sym->st_shndx > SHN_HIRESERVE)
7313 && sym->st_value != 0
7314 && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc)
7315 {
7316 if (skip[sym->st_value >> 3] != (unsigned long) -1)
7317 sym->st_value -= skip[sym->st_value >> 3];
7318 else
7319 {
7320 (*_bfd_error_handler)
7321 (_("%s defined in removed toc entry"),
26c61ae5
L		 7322 bfd_elf_sym_name (ibfd, symtab_hdr, sym,
7323 NULL));
c5614fa4
AM		 7324 sym->st_value = 0;
7325 sym->st_shndx = SHN_ABS;
7326 }
7327 symtab_hdr->contents = (unsigned char *) local_syms;
7328 }
7329 }
7330
7331 /* Finally, adjust any global syms defined in the toc. */
7332 if (toc_inf.global_toc_syms)
7333 {
7334 toc_inf.toc = toc;
7335 toc_inf.skip = skip;
7336 toc_inf.global_toc_syms = FALSE;
7337 elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms,
7338 &toc_inf);
7339 }
7340 }
7341
7342 if (local_syms != NULL
7343 && symtab_hdr->contents != (unsigned char *) local_syms)
7344 {
7345 if (!info->keep_memory)
7346 free (local_syms);
7347 else
7348 symtab_hdr->contents = (unsigned char *) local_syms;
7349 }
7350 free (skip);
7351 }
7352
7353 return TRUE;
7354}
7355
65f38f15
AM		 7356/* Allocate space in .plt, .got and associated reloc sections for
7357 dynamic relocs. */
5bd4f169 7358
b34976b6 7359static bfd_boolean
4ce794b7 7360allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 7361{
65f38f15
AM		 7362 struct bfd_link_info *info;
7363 struct ppc_link_hash_table *htab;
5bd4f169 7364 asection *s;
65f38f15
AM		 7365 struct ppc_link_hash_entry *eh;
7366 struct ppc_dyn_relocs *p;
411e1bfb 7367 struct got_entry *gent;
5bd4f169 7368
e92d460e 7369 if (h->root.type == bfd_link_hash_indirect)
b34976b6 7370 return TRUE;
5bd4f169 7371
e92d460e
AM		 7372 if (h->root.type == bfd_link_hash_warning)
7373 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7374
65f38f15
AM		 7375 info = (struct bfd_link_info *) inf;
7376 htab = ppc_hash_table (info);
5bd4f169 7377
65f38f15 7378 if (htab->elf.dynamic_sections_created
411e1bfb 7379 && h->dynindx != -1
9c7a29a3 7380 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 7381 {
411e1bfb
AM		 7382 struct plt_entry *pent;
7383 bfd_boolean doneone = FALSE;
7384 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
7385 if (pent->plt.refcount > 0)
7386 {
411e1bfb
AM		 7387 /* If this is the first .plt entry, make room for the special
7388 first entry. */
4ce794b7 7389 s = htab->plt;
eea6121a
AM		 7390 if (s->size == 0)
7391 s->size += PLT_INITIAL_ENTRY_SIZE;
411e1bfb 7392
eea6121a 7393 pent->plt.offset = s->size;
411e1bfb
AM		 7394
7395 /* Make room for this entry. */
eea6121a 7396 s->size += PLT_ENTRY_SIZE;
411e1bfb
AM		 7397
7398 /* Make room for the .glink code. */
4ce794b7 7399 s = htab->glink;
eea6121a
AM		 7400 if (s->size == 0)
7401 s->size += GLINK_CALL_STUB_SIZE;
411e1bfb 7402 /* We need bigger stubs past index 32767. */
eea6121a
AM		 7403 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
7404 s->size += 4;
7405 s->size += 2*4;
411e1bfb
AM		 7406
7407 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 7408 s = htab->relplt;
eea6121a 7409 s->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 7410 doneone = TRUE;
7411 }
7412 else
7413 pent->plt.offset = (bfd_vma) -1;
7414 if (!doneone)
65f38f15 7415 {
411e1bfb 7416 h->plt.plist = NULL;
f5385ebf 7417 h->needs_plt = 0;
65f38f15
AM		 7418 }
7419 }
7420 else
7421 {
411e1bfb 7422 h->plt.plist = NULL;
f5385ebf 7423 h->needs_plt = 0;
65f38f15
AM		 7424 }
7425
951fd09b
AM		 7426 eh = (struct ppc_link_hash_entry *) h;
7427 /* Run through the TLS GD got entries first if we're changing them
7428 to TPREL. */
e7b938ca 7429 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 7430 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7431 if (gent->got.refcount > 0
7432 && (gent->tls_type & TLS_GD) != 0)
7433 {
7434 /* This was a GD entry that has been converted to TPREL. If
7435 there happens to be a TPREL entry we can use that one. */
7436 struct got_entry *ent;
7437 for (ent = h->got.glist; ent != NULL; ent = ent->next)
7438 if (ent->got.refcount > 0
7439 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 7440 && ent->addend == gent->addend
7441 && ent->owner == gent->owner)
951fd09b
AM		 7442 {
7443 gent->got.refcount = 0;
7444 break;
7445 }
7446
7447 /* If not, then we'll be using our own TPREL entry. */
7448 if (gent->got.refcount != 0)
7449 gent->tls_type = TLS_TLS | TLS_TPREL;
7450 }
7451
411e1bfb
AM		 7452 for (gent = h->got.glist; gent != NULL; gent = gent->next)
7453 if (gent->got.refcount > 0)
7454 {
951fd09b
AM		 7455 bfd_boolean dyn;
7456
411e1bfb 7457 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 7458 Undefined weak syms won't yet be marked as dynamic,
7459 nor will all TLS symbols. */
411e1bfb 7460 if (h->dynindx == -1
f5385ebf 7461 && !h->forced_local)
411e1bfb 7462 {
c152c796 7463 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM		 7464 return FALSE;
7465 }
65f38f15 7466
d881513a 7467 if ((gent->tls_type & TLS_LD) != 0
f5385ebf 7468 && !h->def_dynamic)
411e1bfb 7469 {
e717da7e 7470 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 7471 continue;
411e1bfb 7472 }
951fd09b 7473
e717da7e 7474 s = ppc64_elf_tdata (gent->owner)->got;
eea6121a
AM		 7475 gent->got.offset = s->size;
7476 s->size
d881513a 7477 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 7478 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 7479 if ((info->shared
7480 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
7481 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7482 || h->root.type != bfd_link_hash_undefweak))
eea6121a 7483 ppc64_elf_tdata (gent->owner)->relgot->size
e7b938ca 7484 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 7485 ? 2 * sizeof (Elf64_External_Rela)
7486 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 7487 }
7488 else
7489 gent->got.offset = (bfd_vma) -1;
65f38f15 7490
65f38f15 7491 if (eh->dyn_relocs == NULL)
b34976b6 7492 return TRUE;
65f38f15
AM		 7493
7494 /* In the shared -Bsymbolic case, discard space allocated for
7495 dynamic pc-relative relocs against symbols which turn out to be
7496 defined in regular objects. For the normal shared case, discard
7497 space for relocs that have become local due to symbol visibility
7498 changes. */
7499
7500 if (info->shared)
7501 {
9c7a29a3
AM		 7502 /* Relocs that use pc_count are those that appear on a call insn,
7503 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
7504 generated via assembly. We want calls to protected symbols to
7505 resolve directly to the function rather than going via the plt.
7506 If people want function pointer comparisons to work as expected
7507 then they should avoid writing weird assembly. */
09695f56 7508 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 7509 {
7510 struct ppc_dyn_relocs **pp;
7511
7512 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 7513 {
65f38f15
AM		 7514 p->count -= p->pc_count;
7515 p->pc_count = 0;
7516 if (p->count == 0)
7517 *pp = p->next;
7518 else
7519 pp = &p->next;
5bd4f169 7520 }
65f38f15 7521 }
4e795f50
AM		 7522
7523 /* Also discard relocs on undefined weak syms with non-default
7524 visibility. */
7525 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
7526 && h->root.type == bfd_link_hash_undefweak)
7527 eh->dyn_relocs = NULL;
65f38f15 7528 }
f4656909 7529 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 7530 {
7531 /* For the non-shared case, discard space for relocs against
7532 symbols which turn out to need copy relocs or are not
7533 dynamic. */
7534
f5385ebf
AM		 7535 if (!h->non_got_ref
7536 && h->def_dynamic
7537 && !h->def_regular)
65f38f15
AM		 7538 {
7539 /* Make sure this symbol is output as a dynamic symbol.
7540 Undefined weak syms won't yet be marked as dynamic. */
7541 if (h->dynindx == -1
f5385ebf 7542 && !h->forced_local)
65f38f15 7543 {
c152c796 7544 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 7545 return FALSE;
65f38f15
AM		 7546 }
7547
7548 /* If that succeeded, we know we'll be keeping all the
7549 relocs. */
7550 if (h->dynindx != -1)
7551 goto keep;
7552 }
7553
7554 eh->dyn_relocs = NULL;
7555
ec338859 7556 keep: ;
65f38f15
AM		 7557 }
7558
7559 /* Finally, allocate space. */
7560 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7561 {
7562 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 7563 sreloc->size += p->count * sizeof (Elf64_External_Rela);
65f38f15
AM		 7564 }
7565
b34976b6 7566 return TRUE;
65f38f15
AM		 7567}
7568
7569/* Find any dynamic relocs that apply to read-only sections. */
7570
b34976b6 7571static bfd_boolean
4ce794b7 7572readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 7573{
7574 struct ppc_link_hash_entry *eh;
7575 struct ppc_dyn_relocs *p;
7576
e92d460e
AM		 7577 if (h->root.type == bfd_link_hash_warning)
7578 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7579
65f38f15
AM		 7580 eh = (struct ppc_link_hash_entry *) h;
7581 for (p = eh->dyn_relocs; p != NULL; p = p->next)
7582 {
7583 asection *s = p->sec->output_section;
7584
7585 if (s != NULL && (s->flags & SEC_READONLY) != 0)
7586 {
4ce794b7 7587 struct bfd_link_info *info = inf;
65f38f15
AM		 7588
7589 info->flags |= DF_TEXTREL;
7590
7591 /* Not an error, just cut short the traversal. */
b34976b6 7592 return FALSE;
65f38f15
AM		 7593 }
7594 }
b34976b6 7595 return TRUE;
65f38f15
AM		 7596}
7597
7598/* Set the sizes of the dynamic sections. */
7599
b34976b6 7600static bfd_boolean
4ce794b7
AM		 7601ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
7602 struct bfd_link_info *info)
65f38f15
AM		 7603{
7604 struct ppc_link_hash_table *htab;
7605 bfd *dynobj;
7606 asection *s;
b34976b6 7607 bfd_boolean relocs;
65f38f15
AM		 7608 bfd *ibfd;
7609
7610 htab = ppc_hash_table (info);
7611 dynobj = htab->elf.dynobj;
7612 if (dynobj == NULL)
7613 abort ();
7614
7615 if (htab->elf.dynamic_sections_created)
7616 {
7617 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 7618 if (info->executable)
65f38f15
AM		 7619 {
7620 s = bfd_get_section_by_name (dynobj, ".interp");
7621 if (s == NULL)
7622 abort ();
eea6121a 7623 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM		 7624 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
7625 }
7626 }
7627
7628 /* Set up .got offsets for local syms, and space for local dynamic
7629 relocs. */
7630 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7631 {
411e1bfb
AM		 7632 struct got_entry **lgot_ents;
7633 struct got_entry **end_lgot_ents;
e7b938ca 7634 char *lgot_masks;
65f38f15
AM		 7635 bfd_size_type locsymcount;
7636 Elf_Internal_Shdr *symtab_hdr;
7637 asection *srel;
7638
ee75fd95 7639 if (!is_ppc64_elf_target (ibfd->xvec))
65f38f15
AM		 7640 continue;
7641
e717da7e
AM		 7642 if (ppc64_tlsld_got (ibfd)->refcount > 0)
7643 {
7644 s = ppc64_elf_tdata (ibfd)->got;
eea6121a
AM		 7645 ppc64_tlsld_got (ibfd)->offset = s->size;
7646 s->size += 16;
e717da7e
AM		 7647 if (info->shared)
7648 {
7649 srel = ppc64_elf_tdata (ibfd)->relgot;
eea6121a 7650 srel->size += sizeof (Elf64_External_Rela);
e717da7e
AM		 7651 }
7652 }
7653 else
7654 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
7655
65f38f15
AM		 7656 for (s = ibfd->sections; s != NULL; s = s->next)
7657 {
ec338859 7658 struct ppc_dyn_relocs *p;
65f38f15 7659
6edfbbad 7660 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
65f38f15 7661 {
ec338859
AM		 7662 if (!bfd_is_abs_section (p->sec)
7663 && bfd_is_abs_section (p->sec->output_section))
7664 {
7665 /* Input section has been discarded, either because
7666 it is a copy of a linkonce section or due to
7667 linker script /DISCARD/, so we'll be discarding
7668 the relocs too. */
7669 }
248866a8 7670 else if (p->count != 0)
ec338859
AM		 7671 {
7672 srel = elf_section_data (p->sec)->sreloc;
eea6121a 7673 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 7674 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
7675 info->flags |= DF_TEXTREL;
ec338859 7676 }
65f38f15
AM		 7677 }
7678 }
7679
411e1bfb
AM		 7680 lgot_ents = elf_local_got_ents (ibfd);
7681 if (!lgot_ents)
65f38f15
AM		 7682 continue;
7683
7684 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
7685 locsymcount = symtab_hdr->sh_info;
411e1bfb 7686 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 7687 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 7688 s = ppc64_elf_tdata (ibfd)->got;
7689 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 7690 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 7691 {
411e1bfb
AM		 7692 struct got_entry *ent;
7693
7694 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
7695 if (ent->got.refcount > 0)
7696 {
e7b938ca 7697 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 7698 {
e717da7e 7699 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 7700 {
eea6121a
AM		 7701 ppc64_tlsld_got (ibfd)->offset = s->size;
7702 s->size += 16;
411e1bfb 7703 if (info->shared)
eea6121a 7704 srel->size += sizeof (Elf64_External_Rela);
411e1bfb 7705 }
e717da7e 7706 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM		 7707 }
7708 else
7709 {
eea6121a 7710 ent->got.offset = s->size;
e7b938ca 7711 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb 7712 {
eea6121a 7713 s->size += 16;
411e1bfb 7714 if (info->shared)
eea6121a 7715 srel->size += 2 * sizeof (Elf64_External_Rela);
411e1bfb
AM		 7716 }
7717 else
7718 {
eea6121a 7719 s->size += 8;
411e1bfb 7720 if (info->shared)
eea6121a 7721 srel->size += sizeof (Elf64_External_Rela);
411e1bfb
AM		 7722 }
7723 }
7724 }
7725 else
7726 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 7727 }
7728 }
7729
7730 /* Allocate global sym .plt and .got entries, and space for global
7731 sym dynamic relocs. */
4ce794b7 7732 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM		 7733
7734 /* We now have determined the sizes of the various dynamic sections.
7735 Allocate memory for them. */
b34976b6 7736 relocs = FALSE;
65f38f15
AM		 7737 for (s = dynobj->sections; s != NULL; s = s->next)
7738 {
7739 if ((s->flags & SEC_LINKER_CREATED) == 0)
7740 continue;
7741
4ce794b7 7742 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 7743 /* These haven't been allocated yet; don't strip. */
7744 continue;
e717da7e
AM		 7745 else if (s == htab->got
7746 || s == htab->plt
c456f082
AM		 7747 || s == htab->glink
7748 || s == htab->dynbss)
65f38f15
AM		 7749 {
7750 /* Strip this section if we don't need it; see the
7751 comment below. */
5bd4f169 7752 }
65f38f15 7753 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169 7754 {
c456f082 7755 if (s->size != 0)
5bd4f169 7756 {
4ce794b7 7757 if (s != htab->relplt)
b34976b6 7758 relocs = TRUE;
5bd4f169
AM		 7759
7760 /* We use the reloc_count field as a counter if we need
7761 to copy relocs into the output file. */
7762 s->reloc_count = 0;
7763 }
7764 }
65f38f15 7765 else
5bd4f169
AM		 7766 {
7767 /* It's not one of our sections, so don't allocate space. */
7768 continue;
7769 }
7770
eea6121a 7771 if (s->size == 0)
5bd4f169 7772 {
c456f082
AM		 7773 /* If we don't need this section, strip it from the
7774 output file. This is mostly to handle .rela.bss and
7775 .rela.plt. We must create both sections in
7776 create_dynamic_sections, because they must be created
7777 before the linker maps input sections to output
7778 sections. The linker does that before
7779 adjust_dynamic_symbol is called, and it is that
7780 function which decides whether anything needs to go
7781 into these sections. */
8423293d 7782 s->flags |= SEC_EXCLUDE;
5bd4f169
AM		 7783 continue;
7784 }
7785
c456f082 7786 if ((s->flags & SEC_HAS_CONTENTS) == 0)
5f333394
AM		 7787 continue;
7788
65f38f15
AM		 7789 /* Allocate memory for the section contents. We use bfd_zalloc
7790 here in case unused entries are not reclaimed before the
7791 section's contents are written out. This should not happen,
411e1bfb
AM		 7792 but this way if it does we get a R_PPC64_NONE reloc in .rela
7793 sections instead of garbage.
7794 We also rely on the section contents being zero when writing
7795 the GOT. */
eea6121a 7796 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 7797 if (s->contents == NULL)
b34976b6 7798 return FALSE;
5bd4f169
AM		 7799 }
7800
e717da7e
AM		 7801 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
7802 {
ee75fd95 7803 if (!is_ppc64_elf_target (ibfd->xvec))
7b53ace3
AM		 7804 continue;
7805
e717da7e
AM		 7806 s = ppc64_elf_tdata (ibfd)->got;
7807 if (s != NULL && s != htab->got)
7808 {
eea6121a 7809 if (s->size == 0)
8423293d 7810 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 7811 else
7812 {
eea6121a 7813 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 7814 if (s->contents == NULL)
7815 return FALSE;
7816 }
7817 }
7818 s = ppc64_elf_tdata (ibfd)->relgot;
7819 if (s != NULL)
7820 {
eea6121a 7821 if (s->size == 0)
8423293d 7822 s->flags |= SEC_EXCLUDE;
e717da7e
AM		 7823 else
7824 {
eea6121a 7825 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM		 7826 if (s->contents == NULL)
7827 return FALSE;
7828 relocs = TRUE;
7829 s->reloc_count = 0;
7830 }
7831 }
7832 }
7833
e86ce104 7834 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 7835 {
7836 /* Add some entries to the .dynamic section. We fill in the
7837 values later, in ppc64_elf_finish_dynamic_sections, but we
7838 must add the entries now so that we get the correct size for
7839 the .dynamic section. The DT_DEBUG entry is filled in by the
7840 dynamic linker and used by the debugger. */
dc810e39 7841#define add_dynamic_entry(TAG, VAL) \
5a580b3a 7842 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 7843
36af4a4e 7844 if (info->executable)
5bd4f169 7845 {
dc810e39 7846 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 7847 return FALSE;
5bd4f169
AM		 7848 }
7849
eea6121a 7850 if (htab->plt != NULL && htab->plt->size != 0)
5bd4f169 7851 {
dc810e39
AM		 7852 if (!add_dynamic_entry (DT_PLTGOT, 0)
7853 || !add_dynamic_entry (DT_PLTRELSZ, 0)
7854 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 7855 || !add_dynamic_entry (DT_JMPREL, 0)
7856 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 7857 return FALSE;
5bd4f169
AM		 7858 }
7859
19397422
AM		 7860 if (NO_OPD_RELOCS)
7861 {
7862 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
7863 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 7864 return FALSE;
19397422
AM		 7865 }
7866
5bd4f169
AM		 7867 if (relocs)
7868 {
dc810e39
AM		 7869 if (!add_dynamic_entry (DT_RELA, 0)
7870 || !add_dynamic_entry (DT_RELASZ, 0)
7871 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 7872 return FALSE;
5bd4f169 7873
65f38f15
AM		 7874 /* If any dynamic relocs apply to a read-only section,
7875 then we need a DT_TEXTREL entry. */
248866a8 7876 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 7877 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 7878
65f38f15 7879 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 7880 {
65f38f15 7881 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 7882 return FALSE;
5bd4f169 7883 }
5bd4f169 7884 }
5bd4f169 7885 }
65f38f15 7886#undef add_dynamic_entry
5bd4f169 7887
b34976b6 7888 return TRUE;
5bd4f169
AM		 7889}
7890
721956f4 7891/* Determine the type of stub needed, if any, for a call. */
5bd4f169 7892
4ce794b7
AM		 7893static inline enum ppc_stub_type
7894ppc_type_of_stub (asection *input_sec,
7895 const Elf_Internal_Rela *rel,
7896 struct ppc_link_hash_entry **hash,
7897 bfd_vma destination)
5bd4f169 7898{
721956f4
AM		 7899 struct ppc_link_hash_entry *h = *hash;
7900 bfd_vma location;
7901 bfd_vma branch_offset;
7902 bfd_vma max_branch_offset;
4ce794b7 7903 enum elf_ppc64_reloc_type r_type;
5bd4f169 7904
721956f4
AM		 7905 if (h != NULL)
7906 {
7fe2b9a6
AM		 7907 struct ppc_link_hash_entry *fdh = h;
7908 if (fdh->oh != NULL
7909 && fdh->oh->is_func_descriptor)
7910 fdh = fdh->oh;
8387904d 7911
7fe2b9a6 7912 if (fdh->elf.dynindx != -1)
5bd4f169 7913 {
411e1bfb 7914 struct plt_entry *ent;
8387904d 7915
7fe2b9a6 7916 for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 7917 if (ent->addend == rel->r_addend
7918 && ent->plt.offset != (bfd_vma) -1)
7919 {
7fe2b9a6 7920 *hash = fdh;
411e1bfb
AM		 7921 return ppc_stub_plt_call;
7922 }
5bd4f169
AM		 7923 }
7924
7fe2b9a6
AM		 7925 /* Here, we know we don't have a plt entry. If we don't have a
7926 either a defined function descriptor or a defined entry symbol
7927 in a regular object file, then it is pointless trying to make
7928 any other type of stub. */
7929 if (!((fdh->elf.root.type == bfd_link_hash_defined
7930 || fdh->elf.root.type == bfd_link_hash_defweak)
7931 && fdh->elf.root.u.def.section->output_section != NULL)
7932 && !((h->elf.root.type == bfd_link_hash_defined
7933 || h->elf.root.type == bfd_link_hash_defweak)
7934 && h->elf.root.u.def.section->output_section != NULL))
721956f4 7935 return ppc_stub_none;
5d1634d7 7936 }
5d1634d7 7937
721956f4
AM		 7938 /* Determine where the call point is. */
7939 location = (input_sec->output_offset
7940 + input_sec->output_section->vma
7941 + rel->r_offset);
5d1634d7 7942
721956f4
AM		 7943 branch_offset = destination - location;
7944 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 7945
721956f4
AM		 7946 /* Determine if a long branch stub is needed. */
7947 max_branch_offset = 1 << 25;
4ce794b7 7948 if (r_type != R_PPC64_REL24)
721956f4 7949 max_branch_offset = 1 << 15;
5d1634d7 7950
721956f4
AM		 7951 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
7952 /* We need a stub. Figure out whether a long_branch or plt_branch
7953 is needed later. */
7954 return ppc_stub_long_branch;
5d1634d7 7955
721956f4 7956 return ppc_stub_none;
5d1634d7
AM		 7957}
7958
7959/* Build a .plt call stub. */
7960
4ce794b7
AM		 7961static inline bfd_byte *
7962build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM		 7963{
7964#define PPC_LO(v) ((v) & 0xffff)
7965#define PPC_HI(v) (((v) >> 16) & 0xffff)
7966#define PPC_HA(v) PPC_HI ((v) + 0x8000)
7967
5d1634d7 7968 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 7969 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM		 7970 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
7971 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 7972 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 7973 offset += 8;
7974 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
7975 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 7976 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 7977 offset += 8;
7978 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
7979 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
7980 bfd_put_32 (obfd, BCTR, p), p += 4;
7981 return p;
7982}
7983
b34976b6 7984static bfd_boolean
4ce794b7 7985ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 7986{
721956f4
AM		 7987 struct ppc_stub_hash_entry *stub_entry;
7988 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 7989 struct bfd_link_info *info;
7990 struct ppc_link_hash_table *htab;
721956f4
AM		 7991 bfd_byte *loc;
7992 bfd_byte *p;
7993 unsigned int indx;
411e1bfb 7994 struct plt_entry *ent;
ee75fd95 7995 bfd_vma dest, off;
721956f4 7996 int size;
5d1634d7 7997
721956f4
AM		 7998 /* Massage our args to the form they really have. */
7999 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 8000 info = in_arg;
5d1634d7 8001
5d1634d7
AM		 8002 htab = ppc_hash_table (info);
8003
721956f4 8004 /* Make a note of the offset within the stubs for this entry. */
eea6121a 8005 stub_entry->stub_offset = stub_entry->stub_sec->size;
97b639ba 8006 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 8007
4ce794b7 8008 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 8009 switch (stub_entry->stub_type)
5d1634d7 8010 {
721956f4 8011 case ppc_stub_long_branch:
ad8e1ba5 8012 case ppc_stub_long_branch_r2off:
721956f4 8013 /* Branches are relative. This is where we are going to. */
ee75fd95
AM		 8014 off = dest = (stub_entry->target_value
8015 + stub_entry->target_section->output_offset
8016 + stub_entry->target_section->output_section->vma);
5d1634d7 8017
721956f4
AM		 8018 /* And this is where we are coming from. */
8019 off -= (stub_entry->stub_offset
97b639ba
AM		 8020 + stub_entry->stub_sec->output_offset
8021 + stub_entry->stub_sec->output_section->vma);
e86ce104 8022
ad8e1ba5
AM		 8023 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
8024 size = 4;
8025 else
8026 {
8027 bfd_vma r2off;
8028
8029 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8030 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 8031 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 8032 loc += 4;
97b639ba 8033 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 8034 loc += 4;
97b639ba 8035 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 8036 loc += 4;
8037 off -= 12;
8038 size = 16;
8039 }
97b639ba 8040 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5 8041
5c3dead3
AM		 8042 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8043 {
8044 (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"),
8045 stub_entry->root.string);
8046 htab->stub_error = TRUE;
8047 return FALSE;
8048 }
ee75fd95
AM		 8049
8050 if (info->emitrelocations)
8051 {
8052 Elf_Internal_Rela *relocs, *r;
8053 struct bfd_elf_section_data *elfsec_data;
8054
8055 elfsec_data = elf_section_data (stub_entry->stub_sec);
8056 relocs = elfsec_data->relocs;
8057 if (relocs == NULL)
8058 {
8059 bfd_size_type relsize;
8060 relsize = stub_entry->stub_sec->reloc_count * sizeof (*relocs);
8061 relocs = bfd_alloc (htab->stub_bfd, relsize);
8062 if (relocs == NULL)
8063 return FALSE;
8064 elfsec_data->relocs = relocs;
8065 elfsec_data->rel_hdr.sh_size = relsize;
8066 elfsec_data->rel_hdr.sh_entsize = 24;
8067 stub_entry->stub_sec->reloc_count = 0;
8068 }
8069 r = relocs + stub_entry->stub_sec->reloc_count;
8070 stub_entry->stub_sec->reloc_count += 1;
8071 r->r_offset = loc - stub_entry->stub_sec->contents;
8072 r->r_info = ELF64_R_INFO (0, R_PPC64_REL24);
8073 r->r_addend = dest;
8074 if (stub_entry->h != NULL)
8075 {
8076 struct elf_link_hash_entry **hashes;
8077 unsigned long symndx;
8078 struct ppc_link_hash_entry *h;
8079
8080 hashes = elf_sym_hashes (htab->stub_bfd);
8081 if (hashes == NULL)
8082 {
8083 bfd_size_type hsize;
8084
8085 hsize = (htab->stub_globals + 1) * sizeof (*hashes);
8086 hashes = bfd_zalloc (htab->stub_bfd, hsize);
8087 if (hashes == NULL)
8088 return FALSE;
8089 elf_sym_hashes (htab->stub_bfd) = hashes;
8090 htab->stub_globals = 1;
8091 }
8092 symndx = htab->stub_globals++;
8093 h = stub_entry->h;
8094 hashes[symndx] = &h->elf;
8095 r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24);
8096 if (h->oh != NULL && h->oh->is_func)
8097 h = h->oh;
8098 if (h->elf.root.u.def.section != stub_entry->target_section)
8099 /* H is an opd symbol. The addend must be zero. */
8100 r->r_addend = 0;
8101 else
8102 {
8103 off = (h->elf.root.u.def.value
8104 + h->elf.root.u.def.section->output_offset
8105 + h->elf.root.u.def.section->output_section->vma);
8106 r->r_addend -= off;
8107 }
8108 }
8109 }
721956f4 8110 break;
e86ce104 8111
721956f4 8112 case ppc_stub_plt_branch:
ad8e1ba5 8113 case ppc_stub_plt_branch_r2off:
721956f4
AM		 8114 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8115 stub_entry->root.string + 9,
b34976b6 8116 FALSE, FALSE);
721956f4
AM		 8117 if (br_entry == NULL)
8118 {
8119 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
5c3dead3 8120 stub_entry->root.string);
b34976b6
AM		 8121 htab->stub_error = TRUE;
8122 return FALSE;
721956f4
AM		 8123 }
8124
8125 off = (stub_entry->target_value
8126 + stub_entry->target_section->output_offset
8127 + stub_entry->target_section->output_section->vma);
8128
4ce794b7
AM		 8129 bfd_put_64 (htab->brlt->owner, off,
8130 htab->brlt->contents + br_entry->offset);
721956f4 8131
ee75fd95 8132 if (htab->relbrlt != NULL)
721956f4
AM		 8133 {
8134 /* Create a reloc for the branch lookup table entry. */
8135 Elf_Internal_Rela rela;
ad8e1ba5 8136 bfd_byte *rl;
5d1634d7 8137
721956f4 8138 rela.r_offset = (br_entry->offset
4ce794b7
AM		 8139 + htab->brlt->output_offset
8140 + htab->brlt->output_section->vma);
721956f4
AM		 8141 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
8142 rela.r_addend = off;
8143
4ce794b7
AM		 8144 rl = htab->relbrlt->contents;
8145 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
8146 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM		 8147 }
8148
8149 off = (br_entry->offset
4ce794b7
AM		 8150 + htab->brlt->output_offset
8151 + htab->brlt->output_section->vma
8152 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 8153 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8154
ad8e1ba5 8155 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 8156 {
8157 (*_bfd_error_handler)
e86ce104 8158 (_("linkage table error against `%s'"),
721956f4 8159 stub_entry->root.string);
5d1634d7 8160 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 8161 htab->stub_error = TRUE;
8162 return FALSE;
5d1634d7 8163 }
41bd81ab 8164
721956f4 8165 indx = off;
ad8e1ba5
AM		 8166 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
8167 {
97b639ba 8168 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 8169 loc += 4;
97b639ba 8170 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5
AM		 8171 size = 16;
8172 }
8173 else
8174 {
8175 bfd_vma r2off;
8176
8177 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
8178 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 8179 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 8180 loc += 4;
97b639ba 8181 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 8182 loc += 4;
97b639ba 8183 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 8184 loc += 4;
97b639ba 8185 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 8186 loc += 4;
97b639ba 8187 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 8188 size = 28;
8189 }
8190 loc += 4;
97b639ba 8191 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 8192 loc += 4;
97b639ba 8193 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 8194 break;
5d1634d7 8195
721956f4 8196 case ppc_stub_plt_call:
c862ae31
AM		 8197 /* Do the best we can for shared libraries built without
8198 exporting ".foo" for each "foo". This can happen when symbol
8199 versioning scripts strip all bar a subset of symbols. */
8387904d
AM		 8200 if (stub_entry->h->oh != NULL
8201 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined
34814b9f 8202 && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak)
c862ae31
AM		 8203 {
8204 /* Point the symbol at the stub. There may be multiple stubs,
8205 we don't really care; The main thing is to make this sym
8f3bab57
AM		 8206 defined somewhere. Maybe defining the symbol in the stub
8207 section is a silly idea. If we didn't do this, htab->top_id
8208 could disappear. */
34814b9f
AM		 8209 stub_entry->h->oh->elf.root.type = bfd_link_hash_defined;
8210 stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec;
8211 stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset;
c862ae31
AM		 8212 }
8213
721956f4 8214 /* Now build the stub. */
411e1bfb
AM		 8215 off = (bfd_vma) -1;
8216 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8217 if (ent->addend == stub_entry->addend)
8218 {
8219 off = ent->plt.offset;
8220 break;
8221 }
721956f4
AM		 8222 if (off >= (bfd_vma) -2)
8223 abort ();
8224
8225 off &= ~ (bfd_vma) 1;
4ce794b7
AM		 8226 off += (htab->plt->output_offset
8227 + htab->plt->output_section->vma
8228 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 8229 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8230
ad8e1ba5 8231 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 8232 {
8233 (*_bfd_error_handler)
8234 (_("linkage table error against `%s'"),
8235 stub_entry->h->elf.root.root.string);
8236 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 8237 htab->stub_error = TRUE;
8238 return FALSE;
721956f4
AM		 8239 }
8240
97b639ba 8241 p = build_plt_stub (htab->stub_bfd, loc, off);
721956f4
AM		 8242 size = p - loc;
8243 break;
8244
8245 default:
8246 BFD_FAIL ();
b34976b6 8247 return FALSE;
721956f4
AM		 8248 }
8249
eea6121a 8250 stub_entry->stub_sec->size += size;
97b639ba 8251
ee75fd95 8252 if (htab->emit_stub_syms)
97b639ba
AM		 8253 {
8254 struct elf_link_hash_entry *h;
ee75fd95
AM		 8255 size_t len1, len2;
8256 char *name;
8257 const char *const stub_str[] = { "long_branch",
8258 "long_branch_r2off",
8259 "plt_branch",
8260 "plt_branch_r2off",
8261 "plt_call" };
8262
8263 len1 = strlen (stub_str[stub_entry->stub_type - 1]);
8264 len2 = strlen (stub_entry->root.string);
8265 name = bfd_malloc (len1 + len2 + 2);
8266 if (name == NULL)
8267 return FALSE;
8268 memcpy (name, stub_entry->root.string, 9);
8269 memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1);
8270 memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1);
8271 h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
97b639ba
AM		 8272 if (h == NULL)
8273 return FALSE;
8274 if (h->root.type == bfd_link_hash_new)
8275 {
8276 h->root.type = bfd_link_hash_defined;
8277 h->root.u.def.section = stub_entry->stub_sec;
8278 h->root.u.def.value = stub_entry->stub_offset;
f5385ebf
AM		 8279 h->ref_regular = 1;
8280 h->def_regular = 1;
8281 h->ref_regular_nonweak = 1;
8282 h->forced_local = 1;
8283 h->non_elf = 0;
97b639ba
AM		 8284 }
8285 }
8286
b34976b6 8287 return TRUE;
721956f4
AM		 8288}
8289
8290/* As above, but don't actually build the stub. Just bump offset so
8291 we know stub section sizes, and select plt_branch stubs where
8292 long_branch stubs won't do. */
8293
b34976b6 8294static bfd_boolean
4ce794b7 8295ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 8296{
8297 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 8298 struct bfd_link_info *info;
721956f4
AM		 8299 struct ppc_link_hash_table *htab;
8300 bfd_vma off;
8301 int size;
8302
8303 /* Massage our args to the form they really have. */
8304 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM		 8305 info = in_arg;
8306
8307 htab = ppc_hash_table (info);
721956f4
AM		 8308
8309 if (stub_entry->stub_type == ppc_stub_plt_call)
8310 {
411e1bfb 8311 struct plt_entry *ent;
58ac9f71 8312 off = (bfd_vma) -1;
411e1bfb
AM		 8313 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
8314 if (ent->addend == stub_entry->addend)
8315 {
8316 off = ent->plt.offset & ~(bfd_vma) 1;
8317 break;
8318 }
58ac9f71 8319 if (off >= (bfd_vma) -2)
411e1bfb 8320 abort ();
4ce794b7
AM		 8321 off += (htab->plt->output_offset
8322 + htab->plt->output_section->vma
8323 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 8324 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 8325
ad8e1ba5 8326 size = PLT_CALL_STUB_SIZE;
4ce794b7 8327 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM		 8328 size += 4;
8329 }
8330 else
8331 {
ad8e1ba5
AM		 8332 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
8333 variants. */
721956f4
AM		 8334 off = (stub_entry->target_value
8335 + stub_entry->target_section->output_offset
8336 + stub_entry->target_section->output_section->vma);
eea6121a 8337 off -= (stub_entry->stub_sec->size
721956f4
AM		 8338 + stub_entry->stub_sec->output_offset
8339 + stub_entry->stub_sec->output_section->vma);
8340
ad8e1ba5
AM		 8341 /* Reset the stub type from the plt variant in case we now
8342 can reach with a shorter stub. */
8343 if (stub_entry->stub_type >= ppc_stub_plt_branch)
8344 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
8345
8346 size = 4;
8347 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
8348 {
8349 off -= 12;
8350 size = 16;
8351 }
8352
8353 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 8354 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
8355 {
8356 struct ppc_branch_hash_entry *br_entry;
8357
8358 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
8359 stub_entry->root.string + 9,
b34976b6 8360 TRUE, FALSE);
721956f4
AM		 8361 if (br_entry == NULL)
8362 {
8363 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
5c3dead3 8364 stub_entry->root.string);
b34976b6
AM		 8365 htab->stub_error = TRUE;
8366 return FALSE;
721956f4
AM		 8367 }
8368
8369 if (br_entry->iter != htab->stub_iteration)
8370 {
8371 br_entry->iter = htab->stub_iteration;
eea6121a
AM		 8372 br_entry->offset = htab->brlt->size;
8373 htab->brlt->size += 8;
63bc6f6c 8374
ee75fd95 8375 if (htab->relbrlt != NULL)
eea6121a 8376 htab->relbrlt->size += sizeof (Elf64_External_Rela);
721956f4 8377 }
ad8e1ba5
AM		 8378
8379 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 8380 size = 16;
ad8e1ba5
AM		 8381 if (stub_entry->stub_type != ppc_stub_plt_branch)
8382 size = 28;
721956f4 8383 }
ee75fd95
AM		 8384
8385 if (info->emitrelocations
8386 && (stub_entry->stub_type == ppc_stub_long_branch
8387 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
8388 stub_entry->stub_sec->reloc_count += 1;
721956f4
AM		 8389 }
8390
eea6121a 8391 stub_entry->stub_sec->size += size;
b34976b6 8392 return TRUE;
721956f4
AM		 8393}
8394
8395/* Set up various things so that we can make a list of input sections
8396 for each output section included in the link. Returns -1 on error,
cedb70c5 8397 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 8398
8399int
4c52953f
AM		 8400ppc64_elf_setup_section_lists (bfd *output_bfd,
8401 struct bfd_link_info *info,
8402 int no_multi_toc)
721956f4
AM		 8403{
8404 bfd *input_bfd;
734b6cf9 8405 int top_id, top_index, id;
721956f4 8406 asection *section;
734b6cf9 8407 asection **input_list;
721956f4
AM		 8408 bfd_size_type amt;
8409 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8410
4c52953f
AM		 8411 htab->no_multi_toc = no_multi_toc;
8412
4ce794b7 8413 if (htab->brlt == NULL)
721956f4
AM		 8414 return 0;
8415
1e2f5b6e 8416 /* Find the top input section id. */
3d6f9012 8417 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 8418 input_bfd != NULL;
8419 input_bfd = input_bfd->link_next)
8420 {
721956f4
AM		 8421 for (section = input_bfd->sections;
8422 section != NULL;
8423 section = section->next)
8424 {
8425 if (top_id < section->id)
8426 top_id = section->id;
8427 }
8428 }
721956f4 8429
8f3bab57 8430 htab->top_id = top_id;
721956f4 8431 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 8432 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 8433 if (htab->stub_group == NULL)
8434 return -1;
8435
3d6f9012
AM		 8436 /* Set toc_off for com, und, abs and ind sections. */
8437 for (id = 0; id < 3; id++)
8438 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 8439
3d6f9012 8440 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 8441
8442 /* We can't use output_bfd->section_count here to find the top output
8443 section index as some sections may have been removed, and
8423293d 8444 strip_excluded_output_sections doesn't renumber the indices. */
734b6cf9
AM		 8445 for (section = output_bfd->sections, top_index = 0;
8446 section != NULL;
8447 section = section->next)
8448 {
8449 if (top_index < section->index)
8450 top_index = section->index;
8451 }
8452
8453 htab->top_index = top_index;
8454 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 8455 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 8456 htab->input_list = input_list;
8457 if (input_list == NULL)
8458 return -1;
8459
721956f4
AM		 8460 return 1;
8461}
8462
e717da7e
AM		 8463/* The linker repeatedly calls this function for each TOC input section
8464 and linker generated GOT section. Group input bfds such that the toc
8465 within a group is less than 64k in size. Will break with cute linker
8466 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 8467
8468void
4ce794b7 8469ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 8470{
8471 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8472
4c52953f
AM		 8473 if (!htab->no_multi_toc)
8474 {
8475 bfd_vma addr = isec->output_offset + isec->output_section->vma;
8476 bfd_vma off = addr - htab->toc_curr;
8477
8478 if (off + isec->size > 0x10000)
8479 htab->toc_curr = addr;
99877b66 8480
4c52953f
AM		 8481 elf_gp (isec->owner) = (htab->toc_curr
8482 - elf_gp (isec->output_section->owner)
8483 + TOC_BASE_OFF);
8484 }
ad8e1ba5
AM		 8485}
8486
8487/* Called after the last call to the above function. */
8488
8489void
4c52953f 8490ppc64_elf_reinit_toc (bfd *output_bfd, struct bfd_link_info *info)
ad8e1ba5
AM		 8491{
8492 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5 8493
4c52953f
AM		 8494 htab->multi_toc_needed = htab->toc_curr != elf_gp (output_bfd);
8495
ad8e1ba5
AM		 8496 /* toc_curr tracks the TOC offset used for code sections below in
8497 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 8498 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 8499}
8500
9b5ecbd0
AM		 8501/* No toc references were found in ISEC. If the code in ISEC makes no
8502 calls, then there's no need to use toc adjusting stubs when branching
8503 into ISEC. Actually, indirect calls from ISEC are OK as they will
4c52953f
AM		 8504 load r2. Returns -1 on error, 0 for no stub needed, 1 for stub
8505 needed, and 2 if a cyclical call-graph was found but no other reason
8506 for a stub was detected. If called from the top level, a return of
8507 2 means the same as a return of 0. */
9b5ecbd0
AM		 8508
8509static int
4ce794b7 8510toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0 8511{
4c52953f
AM		 8512 Elf_Internal_Rela *relstart, *rel;
8513 Elf_Internal_Sym *local_syms;
9b5ecbd0 8514 int ret;
4c52953f 8515 struct ppc_link_hash_table *htab;
9b5ecbd0 8516
772119ce
AM		 8517 /* We know none of our code bearing sections will need toc stubs. */
8518 if ((isec->flags & SEC_LINKER_CREATED) != 0)
8519 return 0;
8520
eea6121a 8521 if (isec->size == 0)
082c50f8
AM		 8522 return 0;
8523
4c52953f
AM		 8524 if (isec->output_section == NULL)
8525 return 0;
8526
9b5ecbd0
AM		 8527 /* Hack for linux kernel. .fixup contains branches, but only back to
8528 the function that hit an exception. */
4c52953f
AM		 8529 if (strcmp (isec->name, ".fixup") == 0)
8530 return 0;
9b5ecbd0 8531
4c52953f
AM		 8532 if (isec->reloc_count == 0)
8533 return 0;
8534
8535 relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL,
8536 info->keep_memory);
8537 if (relstart == NULL)
8538 return -1;
8539
8540 /* Look for branches to outside of this section. */
8541 local_syms = NULL;
8542 ret = 0;
8543 htab = ppc_hash_table (info);
8544 for (rel = relstart; rel < relstart + isec->reloc_count; ++rel)
9b5ecbd0 8545 {
4c52953f
AM		 8546 enum elf_ppc64_reloc_type r_type;
8547 unsigned long r_symndx;
8548 struct elf_link_hash_entry *h;
8549 Elf_Internal_Sym *sym;
8550 asection *sym_sec;
8551 long *opd_adjust;
8552 bfd_vma sym_value;
8553 bfd_vma dest;
8554
8555 r_type = ELF64_R_TYPE (rel->r_info);
8556 if (r_type != R_PPC64_REL24
8557 && r_type != R_PPC64_REL14
8558 && r_type != R_PPC64_REL14_BRTAKEN
8559 && r_type != R_PPC64_REL14_BRNTAKEN)
8560 continue;
8561
8562 r_symndx = ELF64_R_SYM (rel->r_info);
8563 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx,
8564 isec->owner))
9b5ecbd0 8565 {
4c52953f
AM		 8566 ret = -1;
8567 break;
9b5ecbd0 8568 }
9b5ecbd0 8569
2917689a
AM		 8570 /* Calls to dynamic lib functions go through a plt call stub
8571 that uses r2. Branches to undefined symbols might be a call
8572 using old-style dot symbols that can be satisfied by a plt
8573 call into a new-style dynamic library. */
4c52953f 8574 if (sym_sec == NULL)
2917689a
AM		 8575 {
8576 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h;
8577 if (eh != NULL
8578 && eh->oh != NULL
8579 && eh->oh->elf.plt.plist != NULL)
8580 {
8581 ret = 1;
8582 break;
8583 }
4c52953f 8584
2917689a
AM		 8585 /* Ignore other undefined symbols. */
8586 continue;
8587 }
8588
8589 /* Assume branches to other sections not included in the link need
8590 stubs too, to cover -R and absolute syms. */
4c52953f
AM		 8591 if (sym_sec->output_section == NULL)
8592 {
8593 ret = 1;
8594 break;
8595 }
8596
8597 if (h == NULL)
8598 sym_value = sym->st_value;
8599 else
8600 {
8601 if (h->root.type != bfd_link_hash_defined
8602 && h->root.type != bfd_link_hash_defweak)
8603 abort ();
8604 sym_value = h->root.u.def.value;
8605 }
8606 sym_value += rel->r_addend;
8607
8608 /* If this branch reloc uses an opd sym, find the code section. */
8609 opd_adjust = get_opd_info (sym_sec);
8610 if (opd_adjust != NULL)
8611 {
4c52953f
AM		 8612 if (h == NULL)
8613 {
8614 long adjust;
8615
8616 adjust = opd_adjust[sym->st_value / 8];
8617 if (adjust == -1)
8618 /* Assume deleted functions won't ever be called. */
8619 continue;
8620 sym_value += adjust;
8621 }
8622
8623 dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL);
8624 if (dest == (bfd_vma) -1)
8625 continue;
8626 }
8627 else
8628 dest = (sym_value
8629 + sym_sec->output_offset
8630 + sym_sec->output_section->vma);
8631
8632 /* Ignore branch to self. */
8633 if (sym_sec == isec)
8634 continue;
8635
8636 /* If the called function uses the toc, we need a stub. */
8637 if (sym_sec->has_toc_reloc
8638 || sym_sec->makes_toc_func_call)
8639 {
8640 ret = 1;
8641 break;
8642 }
8643
8644 /* Assume any branch that needs a long branch stub might in fact
8645 need a plt_branch stub. A plt_branch stub uses r2. */
8646 else if (dest - (isec->output_offset
8647 + isec->output_section->vma
8648 + rel->r_offset) + (1 << 25) >= (2 << 25))
9b5ecbd0
AM		 8649 {
8650 ret = 1;
8651 break;
8652 }
4c52953f
AM		 8653
8654 /* If calling back to a section in the process of being tested, we
8655 can't say for sure that no toc adjusting stubs are needed, so
8656 don't return zero. */
8657 else if (sym_sec->call_check_in_progress)
8658 ret = 2;
8659
8660 /* Branches to another section that itself doesn't have any TOC
8661 references are OK. Recursively call ourselves to check. */
8662 else if (sym_sec->id <= htab->top_id
8663 && htab->stub_group[sym_sec->id].toc_off == 0)
8664 {
8665 int recur;
8666
8667 /* Mark current section as indeterminate, so that other
8668 sections that call back to current won't be marked as
8669 known. */
8670 isec->call_check_in_progress = 1;
8671 recur = toc_adjusting_stub_needed (info, sym_sec);
8672 isec->call_check_in_progress = 0;
8673
8674 if (recur < 0)
8675 {
8676 /* An error. Exit. */
8677 ret = -1;
8678 break;
8679 }
8680 else if (recur <= 1)
8681 {
8682 /* Known result. Mark as checked and set section flag. */
8683 htab->stub_group[sym_sec->id].toc_off = 1;
8684 if (recur != 0)
8685 {
8686 sym_sec->makes_toc_func_call = 1;
8687 ret = 1;
8688 break;
8689 }
8690 }
8691 else
8692 {
8693 /* Unknown result. Continue checking. */
8694 ret = 2;
8695 }
8696 }
9b5ecbd0
AM		 8697 }
8698
4c52953f
AM		 8699 if (local_syms != NULL
8700 && (elf_tdata (isec->owner)->symtab_hdr.contents
8701 != (unsigned char *) local_syms))
8702 free (local_syms);
8703 if (elf_section_data (isec)->relocs != relstart)
8704 free (relstart);
8705
9b5ecbd0
AM		 8706 return ret;
8707}
8708
721956f4
AM		 8709/* The linker repeatedly calls this function for each input section,
8710 in the order that input sections are linked into output sections.
8711 Build lists of input sections to determine groupings between which
8712 we may insert linker stubs. */
8713
9b5ecbd0 8714bfd_boolean
4ce794b7 8715ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 8716{
8717 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8718
734b6cf9
AM		 8719 if ((isec->output_section->flags & SEC_CODE) != 0
8720 && isec->output_section->index <= htab->top_index)
721956f4 8721 {
734b6cf9 8722 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 8723 /* Steal the link_sec pointer for our list. */
721956f4 8724#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 8725 /* This happens to make the list in reverse order,
8726 which is what we want. */
734b6cf9
AM		 8727 PREV_SEC (isec) = *list;
8728 *list = isec;
721956f4 8729 }
ad8e1ba5 8730
4c52953f 8731 if (htab->multi_toc_needed)
9b5ecbd0 8732 {
4c52953f
AM		 8733 /* If a code section has a function that uses the TOC then we need
8734 to use the right TOC (obviously). Also, make sure that .opd gets
8735 the correct TOC value for R_PPC64_TOC relocs that don't have or
8736 can't find their function symbol (shouldn't ever happen now). */
8737 if (isec->has_toc_reloc || (isec->flags & SEC_CODE) == 0)
8738 {
8739 if (elf_gp (isec->owner) != 0)
8740 htab->toc_curr = elf_gp (isec->owner);
8741 }
8742 else if (htab->stub_group[isec->id].toc_off == 0)
8743 {
8744 int ret = toc_adjusting_stub_needed (info, isec);
8745 if (ret < 0)
8746 return FALSE;
8747 else
8748 isec->makes_toc_func_call = ret & 1;
8749 }
9b5ecbd0 8750 }
ad8e1ba5
AM		 8751
8752 /* Functions that don't use the TOC can belong in any TOC group.
8753 Use the last TOC base. This happens to make _init and _fini
8754 pasting work. */
8755 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 8756 return TRUE;
721956f4
AM		 8757}
8758
8759/* See whether we can group stub sections together. Grouping stub
8760 sections may result in fewer stubs. More importantly, we need to
8761 put all .init* and .fini* stubs at the beginning of the .init or
8762 .fini output sections respectively, because glibc splits the
8763 _init and _fini functions into multiple parts. Putting a stub in
8764 the middle of a function is not a good idea. */
8765
8766static void
4ce794b7
AM		 8767group_sections (struct ppc_link_hash_table *htab,
8768 bfd_size_type stub_group_size,
8769 bfd_boolean stubs_always_before_branch)
721956f4 8770{
734b6cf9
AM		 8771 asection **list = htab->input_list + htab->top_index;
8772 do
721956f4 8773 {
734b6cf9
AM		 8774 asection *tail = *list;
8775 while (tail != NULL)
721956f4 8776 {
734b6cf9
AM		 8777 asection *curr;
8778 asection *prev;
8779 bfd_size_type total;
8780 bfd_boolean big_sec;
8781 bfd_vma curr_toc;
8782
8783 curr = tail;
eea6121a 8784 total = tail->size;
5c3dead3
AM		 8785 big_sec = total > stub_group_size;
8786 if (big_sec)
8787 (*_bfd_error_handler) (_("%B section %A exceeds stub group size"),
8788 tail->owner, tail);
734b6cf9
AM		 8789 curr_toc = htab->stub_group[tail->id].toc_off;
8790
8791 while ((prev = PREV_SEC (curr)) != NULL
8792 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM		 8793 < stub_group_size)
8794 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 8795 curr = prev;
8796
8797 /* OK, the size from the start of CURR to the end is less
8798 than stub_group_size and thus can be handled by one stub
8799 section. (or the tail section is itself larger than
8800 stub_group_size, in which case we may be toast.) We
8801 should really be keeping track of the total size of stubs
8802 added here, as stubs contribute to the final output
8803 section size. That's a little tricky, and this way will
8804 only break if stubs added make the total size more than
8805 2^25, ie. for the default stub_group_size, if stubs total
8806 more than 2097152 bytes, or nearly 75000 plt call stubs. */
8807 do
721956f4
AM		 8808 {
8809 prev = PREV_SEC (tail);
734b6cf9 8810 /* Set up this stub group. */
721956f4
AM		 8811 htab->stub_group[tail->id].link_sec = curr;
8812 }
734b6cf9
AM		 8813 while (tail != curr && (tail = prev) != NULL);
8814
8815 /* But wait, there's more! Input sections up to stub_group_size
8816 bytes before the stub section can be handled by it too.
8817 Don't do this if we have a really large section after the
8818 stubs, as adding more stubs increases the chance that
8819 branches may not reach into the stub section. */
8820 if (!stubs_always_before_branch && !big_sec)
8821 {
8822 total = 0;
8823 while (prev != NULL
8824 && ((total += tail->output_offset - prev->output_offset)
8825 < stub_group_size)
8826 && htab->stub_group[prev->id].toc_off == curr_toc)
8827 {
8828 tail = prev;
8829 prev = PREV_SEC (tail);
8830 htab->stub_group[tail->id].link_sec = curr;
8831 }
8832 }
8833 tail = prev;
721956f4
AM		 8834 }
8835 }
734b6cf9
AM		 8836 while (list-- != htab->input_list);
8837 free (htab->input_list);
721956f4
AM		 8838#undef PREV_SEC
8839}
8840
721956f4
AM		 8841/* Determine and set the size of the stub section for a final link.
8842
8843 The basic idea here is to examine all the relocations looking for
8844 PC-relative calls to a target that is unreachable with a "bl"
8845 instruction. */
8846
b34976b6 8847bfd_boolean
4ce794b7 8848ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 8849 struct bfd_link_info *info,
8850 bfd_signed_vma group_size,
8851 asection *(*add_stub_section) (const char *, asection *),
8852 void (*layout_sections_again) (void))
721956f4
AM		 8853{
8854 bfd_size_type stub_group_size;
b34976b6 8855 bfd_boolean stubs_always_before_branch;
721956f4
AM		 8856 struct ppc_link_hash_table *htab = ppc_hash_table (info);
8857
8858 /* Stash our params away. */
721956f4
AM		 8859 htab->add_stub_section = add_stub_section;
8860 htab->layout_sections_again = layout_sections_again;
8861 stubs_always_before_branch = group_size < 0;
8862 if (group_size < 0)
8863 stub_group_size = -group_size;
8864 else
8865 stub_group_size = group_size;
8866 if (stub_group_size == 1)
8867 {
8868 /* Default values. */
58ac9f71
AM		 8869 if (stubs_always_before_branch)
8870 {
8871 stub_group_size = 0x1e00000;
8872 if (htab->has_14bit_branch)
8873 stub_group_size = 0x7800;
8874 }
8875 else
8876 {
8877 stub_group_size = 0x1c00000;
8878 if (htab->has_14bit_branch)
8879 stub_group_size = 0x7000;
8880 }
721956f4
AM		 8881 }
8882
8883 group_sections (htab, stub_group_size, stubs_always_before_branch);
8884
721956f4
AM		 8885 while (1)
8886 {
8887 bfd *input_bfd;
8888 unsigned int bfd_indx;
8889 asection *stub_sec;
721956f4
AM		 8890
8891 htab->stub_iteration += 1;
721956f4
AM		 8892
8893 for (input_bfd = info->input_bfds, bfd_indx = 0;
8894 input_bfd != NULL;
8895 input_bfd = input_bfd->link_next, bfd_indx++)
8896 {
8897 Elf_Internal_Shdr *symtab_hdr;
8898 asection *section;
6cdc0ccc 8899 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM		 8900
8901 /* We'll need the symbol table in a second. */
8902 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
8903 if (symtab_hdr->sh_info == 0)
8904 continue;
8905
721956f4
AM		 8906 /* Walk over each section attached to the input bfd. */
8907 for (section = input_bfd->sections;
8908 section != NULL;
8909 section = section->next)
8910 {
721956f4 8911 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 8912
8913 /* If there aren't any relocs, then there's nothing more
8914 to do. */
8915 if ((section->flags & SEC_RELOC) == 0
8916 || section->reloc_count == 0)
8917 continue;
8918
8919 /* If this section is a link-once section that will be
8920 discarded, then don't create any stubs. */
8921 if (section->output_section == NULL
8922 || section->output_section->owner != output_bfd)
8923 continue;
8924
1e2f5b6e
AM		 8925 /* Get the relocs. */
8926 internal_relocs
4ce794b7 8927 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 8928 info->keep_memory);
721956f4 8929 if (internal_relocs == NULL)
1e2f5b6e 8930 goto error_ret_free_local;
721956f4
AM		 8931
8932 /* Now examine each relocation. */
8933 irela = internal_relocs;
8934 irelaend = irela + section->reloc_count;
8935 for (; irela < irelaend; irela++)
8936 {
4ce794b7
AM		 8937 enum elf_ppc64_reloc_type r_type;
8938 unsigned int r_indx;
721956f4
AM		 8939 enum ppc_stub_type stub_type;
8940 struct ppc_stub_hash_entry *stub_entry;
8387904d 8941 asection *sym_sec, *code_sec;
721956f4
AM		 8942 bfd_vma sym_value;
8943 bfd_vma destination;
8843416a 8944 bfd_boolean ok_dest;
721956f4 8945 struct ppc_link_hash_entry *hash;
8387904d 8946 struct ppc_link_hash_entry *fdh;
411e1bfb
AM		 8947 struct elf_link_hash_entry *h;
8948 Elf_Internal_Sym *sym;
721956f4
AM		 8949 char *stub_name;
8950 const asection *id_sec;
8387904d 8951 long *opd_adjust;
721956f4
AM		 8952
8953 r_type = ELF64_R_TYPE (irela->r_info);
8954 r_indx = ELF64_R_SYM (irela->r_info);
8955
4ce794b7 8956 if (r_type >= R_PPC64_max)
721956f4
AM		 8957 {
8958 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 8959 goto error_ret_free_internal;
721956f4
AM		 8960 }
8961
8962 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 8963 if (r_type != R_PPC64_REL24
8964 && r_type != R_PPC64_REL14
8965 && r_type != R_PPC64_REL14_BRTAKEN
8966 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 8967 continue;
8968
8969 /* Now determine the call target, its name, value,
8970 section. */
411e1bfb
AM		 8971 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
8972 r_indx, input_bfd))
8973 goto error_ret_free_internal;
8974 hash = (struct ppc_link_hash_entry *) h;
8975
8843416a 8976 ok_dest = FALSE;
8387904d 8977 fdh = NULL;
7fe2b9a6 8978 sym_value = 0;
411e1bfb 8979 if (hash == NULL)
721956f4 8980 {
411e1bfb 8981 sym_value = sym->st_value;
8843416a 8982 ok_dest = TRUE;
721956f4 8983 }
7fe2b9a6
AM		 8984 else if (hash->elf.root.type == bfd_link_hash_defined
8985 || hash->elf.root.type == bfd_link_hash_defweak)
8986 {
8987 sym_value = hash->elf.root.u.def.value;
8988 if (sym_sec->output_section != NULL)
8989 ok_dest = TRUE;
8990 }
8991 else if (hash->elf.root.type == bfd_link_hash_undefweak
8992 || hash->elf.root.type == bfd_link_hash_undefined)
721956f4 8993 {
99877b66 8994 /* Recognise an old ABI func code entry sym, and
7fe2b9a6
AM		 8995 use the func descriptor sym instead if it is
8996 defined. */
ceb1f1ef 8997 if (hash->elf.root.root.string[0] == '.'
8387904d
AM		 8998 && (fdh = get_fdh (hash, htab)) != NULL)
8999 {
8387904d
AM		 9000 if (fdh->elf.root.type == bfd_link_hash_defined
9001 || fdh->elf.root.type == bfd_link_hash_defweak)
9002 {
9003 sym_sec = fdh->elf.root.u.def.section;
9004 sym_value = fdh->elf.root.u.def.value;
9005 if (sym_sec->output_section != NULL)
9006 ok_dest = TRUE;
9007 }
99877b66
AM		 9008 else
9009 fdh = NULL;
8387904d 9010 }
7fe2b9a6
AM		 9011 }
9012 else
9013 {
9014 bfd_set_error (bfd_error_bad_value);
9015 goto error_ret_free_internal;
721956f4
AM		 9016 }
9017
8843416a
AM		 9018 destination = 0;
9019 if (ok_dest)
9020 {
9021 sym_value += irela->r_addend;
9022 destination = (sym_value
9023 + sym_sec->output_offset
9024 + sym_sec->output_section->vma);
9025 }
9026
8387904d
AM		 9027 code_sec = sym_sec;
9028 opd_adjust = get_opd_info (sym_sec);
9029 if (opd_adjust != NULL)
9030 {
9031 bfd_vma dest;
9032
9033 if (hash == NULL)
9034 {
3f764659 9035 long adjust = opd_adjust[sym_value / 8];
8387904d
AM		 9036 if (adjust == -1)
9037 continue;
9038 sym_value += adjust;
9039 }
9040 dest = opd_entry_value (sym_sec, sym_value,
9041 &code_sec, &sym_value);
9042 if (dest != (bfd_vma) -1)
9043 {
9044 destination = dest;
9045 if (fdh != NULL)
9046 {
9047 /* Fixup old ABI sym to point at code
9048 entry. */
99877b66 9049 hash->elf.root.type = bfd_link_hash_defweak;
8387904d
AM		 9050 hash->elf.root.u.def.section = code_sec;
9051 hash->elf.root.u.def.value = sym_value;
9052 }
9053 }
9054 }
9055
721956f4
AM		 9056 /* Determine what (if any) linker stub is needed. */
9057 stub_type = ppc_type_of_stub (section, irela, &hash,
9058 destination);
ad8e1ba5
AM		 9059
9060 if (stub_type != ppc_stub_plt_call)
9061 {
9062 /* Check whether we need a TOC adjusting stub.
9063 Since the linker pastes together pieces from
9064 different object files when creating the
9065 _init and _fini functions, it may be that a
9066 call to what looks like a local sym is in
9067 fact a call needing a TOC adjustment. */
8387904d
AM		 9068 if (code_sec != NULL
9069 && code_sec->output_section != NULL
9070 && (htab->stub_group[code_sec->id].toc_off
9b5ecbd0 9071 != htab->stub_group[section->id].toc_off)
4c52953f
AM		 9072 && (code_sec->has_toc_reloc
9073 || code_sec->makes_toc_func_call))
ad8e1ba5
AM		 9074 stub_type = ppc_stub_long_branch_r2off;
9075 }
9076
721956f4
AM		 9077 if (stub_type == ppc_stub_none)
9078 continue;
9079
411e1bfb
AM		 9080 /* __tls_get_addr calls might be eliminated. */
9081 if (stub_type != ppc_stub_plt_call
9082 && hash != NULL
8387904d
AM		 9083 && (hash == htab->tls_get_addr
9084 || hash == htab->tls_get_addr_fd)
411e1bfb
AM		 9085 && section->has_tls_reloc
9086 && irela != internal_relocs)
9087 {
9088 /* Get tls info. */
e7b938ca 9089 char *tls_mask;
411e1bfb 9090
0d4792f7 9091 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
411e1bfb
AM		 9092 irela - 1, input_bfd))
9093 goto error_ret_free_internal;
e7b938ca 9094 if (*tls_mask != 0)
411e1bfb
AM		 9095 continue;
9096 }
9097
721956f4
AM		 9098 /* Support for grouping stub sections. */
9099 id_sec = htab->stub_group[section->id].link_sec;
9100
9101 /* Get the name of this stub. */
9102 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
9103 if (!stub_name)
9104 goto error_ret_free_internal;
9105
9106 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 9107 stub_name, FALSE, FALSE);
721956f4
AM		 9108 if (stub_entry != NULL)
9109 {
9110 /* The proper stub has already been created. */
9111 free (stub_name);
9112 continue;
9113 }
9114
9115 stub_entry = ppc_add_stub (stub_name, section, htab);
9116 if (stub_entry == NULL)
9117 {
9118 free (stub_name);
6cdc0ccc
AM		 9119 error_ret_free_internal:
9120 if (elf_section_data (section)->relocs == NULL)
9121 free (internal_relocs);
9122 error_ret_free_local:
9123 if (local_syms != NULL
9124 && (symtab_hdr->contents
9125 != (unsigned char *) local_syms))
9126 free (local_syms);
b34976b6 9127 return FALSE;
721956f4
AM		 9128 }
9129
ad8e1ba5 9130 stub_entry->stub_type = stub_type;
721956f4 9131 stub_entry->target_value = sym_value;
8387904d 9132 stub_entry->target_section = code_sec;
721956f4 9133 stub_entry->h = hash;
411e1bfb 9134 stub_entry->addend = irela->r_addend;
ee75fd95
AM		 9135
9136 if (stub_entry->h != NULL)
9137 htab->stub_globals += 1;
721956f4
AM		 9138 }
9139
9140 /* We're done with the internal relocs, free them. */
6cdc0ccc 9141 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 9142 free (internal_relocs);
721956f4 9143 }
6cdc0ccc
AM		 9144
9145 if (local_syms != NULL
9146 && symtab_hdr->contents != (unsigned char *) local_syms)
9147 {
9148 if (!info->keep_memory)
9149 free (local_syms);
9150 else
9151 symtab_hdr->contents = (unsigned char *) local_syms;
9152 }
721956f4
AM		 9153 }
9154
5c3dead3 9155 /* We may have added some stubs. Find out the new size of the
721956f4
AM		 9156 stub sections. */
9157 for (stub_sec = htab->stub_bfd->sections;
9158 stub_sec != NULL;
9159 stub_sec = stub_sec->next)
e717da7e 9160 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
ee75fd95 9161 {
5c3dead3 9162 stub_sec->rawsize = stub_sec->size;
ee75fd95
AM		 9163 stub_sec->size = 0;
9164 stub_sec->reloc_count = 0;
9165 }
eea6121a
AM		 9166
9167 htab->brlt->size = 0;
ee75fd95 9168 if (htab->relbrlt != NULL)
eea6121a 9169 htab->relbrlt->size = 0;
721956f4 9170
63bc6f6c 9171 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4 9172
5c3dead3
AM		 9173 for (stub_sec = htab->stub_bfd->sections;
9174 stub_sec != NULL;
9175 stub_sec = stub_sec->next)
9176 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9177 && stub_sec->rawsize != stub_sec->size)
9178 break;
9179
9180 /* Exit from this loop when no stubs have been added, and no stubs
9181 have changed size. */
9182 if (stub_sec == NULL)
9183 break;
9184
721956f4
AM		 9185 /* Ask the linker to do its stuff. */
9186 (*htab->layout_sections_again) ();
9187 }
9188
c456f082 9189 /* It would be nice to strip htab->brlt from the output if the
afbe61cf
AM		 9190 section is empty, but it's too late. If we strip sections here,
9191 the dynamic symbol table is corrupted since the section symbol
9192 for the stripped section isn't written. */
721956f4 9193
b34976b6 9194 return TRUE;
721956f4
AM		 9195}
9196
9197/* Called after we have determined section placement. If sections
805fc799 9198 move, we'll be called again. Provide a value for TOCstart. */
721956f4 9199
805fc799 9200bfd_vma
4ce794b7 9201ppc64_elf_toc (bfd *obfd)
721956f4 9202{
805fc799
AM		 9203 asection *s;
9204 bfd_vma TOCstart;
721956f4 9205
805fc799
AM		 9206 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
9207 order. The TOC starts where the first of these sections starts. */
9208 s = bfd_get_section_by_name (obfd, ".got");
9209 if (s == NULL)
9210 s = bfd_get_section_by_name (obfd, ".toc");
9211 if (s == NULL)
9212 s = bfd_get_section_by_name (obfd, ".tocbss");
9213 if (s == NULL)
9214 s = bfd_get_section_by_name (obfd, ".plt");
9215 if (s == NULL)
9216 {
9217 /* This may happen for
9218 o references to TOC base (SYM@toc / TOC[tc0]) without a
9219 .toc directive
9220 o bad linker script
9221 o --gc-sections and empty TOC sections
9222
9223 FIXME: Warn user? */
9224
9225 /* Look for a likely section. We probably won't even be
9226 using TOCstart. */
9227 for (s = obfd->sections; s != NULL; s = s->next)
9228 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
9229 == (SEC_ALLOC | SEC_SMALL_DATA))
9230 break;
721956f4 9231 if (s == NULL)
805fc799
AM		 9232 for (s = obfd->sections; s != NULL; s = s->next)
9233 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
9234 == (SEC_ALLOC | SEC_SMALL_DATA))
9235 break;
721956f4 9236 if (s == NULL)
805fc799
AM		 9237 for (s = obfd->sections; s != NULL; s = s->next)
9238 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
9239 break;
721956f4 9240 if (s == NULL)
805fc799
AM		 9241 for (s = obfd->sections; s != NULL; s = s->next)
9242 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
9243 break;
9244 }
721956f4 9245
805fc799
AM		 9246 TOCstart = 0;
9247 if (s != NULL)
9248 TOCstart = s->output_section->vma + s->output_offset;
721956f4 9249
805fc799 9250 return TOCstart;
721956f4
AM		 9251}
9252
9253/* Build all the stubs associated with the current output file.
9254 The stubs are kept in a hash table attached to the main linker
9255 hash table. This function is called via gldelf64ppc_finish. */
9256
b34976b6 9257bfd_boolean
4ce794b7
AM		 9258ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
9259 struct bfd_link_info *info,
9260 char **stats)
5d1634d7
AM		 9261{
9262 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 9263 asection *stub_sec;
5d1634d7 9264 bfd_byte *p;
e717da7e 9265 int stub_sec_count = 0;
5d1634d7 9266
ad8e1ba5 9267 htab->emit_stub_syms = emit_stub_syms;
eea6121a
AM		 9268
9269 /* Allocate memory to hold the linker stubs. */
721956f4
AM		 9270 for (stub_sec = htab->stub_bfd->sections;
9271 stub_sec != NULL;
9272 stub_sec = stub_sec->next)
eea6121a
AM		 9273 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
9274 && stub_sec->size != 0)
e717da7e 9275 {
eea6121a
AM		 9276 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
9277 if (stub_sec->contents == NULL)
9278 return FALSE;
9279 /* We want to check that built size is the same as calculated
9280 size. rawsize is a convenient location to use. */
9281 stub_sec->rawsize = stub_sec->size;
9282 stub_sec->size = 0;
e717da7e 9283 }
5d1634d7 9284
4ce794b7 9285 if (htab->plt != NULL)
5d1634d7 9286 {
9f951329 9287 unsigned int indx;
ad8e1ba5 9288 bfd_vma plt0;
9f951329 9289
721956f4 9290 /* Build the .glink plt call stub. */
4ce794b7
AM		 9291 plt0 = (htab->plt->output_section->vma
9292 + htab->plt->output_offset
9293 - (htab->glink->output_section->vma
9294 + htab->glink->output_offset
ad8e1ba5
AM		 9295 + GLINK_CALL_STUB_SIZE));
9296 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 9297 {
ad8e1ba5
AM		 9298 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
9299 bfd_set_error (bfd_error_bad_value);
9300 return FALSE;
721956f4 9301 }
721956f4 9302
97b639ba
AM		 9303 if (htab->emit_stub_syms)
9304 {
9305 struct elf_link_hash_entry *h;
9306 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
9307 if (h == NULL)
9308 return FALSE;
9309 if (h->root.type == bfd_link_hash_new)
9310 {
9311 h->root.type = bfd_link_hash_defined;
9312 h->root.u.def.section = htab->glink;
9313 h->root.u.def.value = 0;
f5385ebf
AM		 9314 h->ref_regular = 1;
9315 h->def_regular = 1;
9316 h->ref_regular_nonweak = 1;
9317 h->forced_local = 1;
9318 h->non_elf = 0;
97b639ba
AM		 9319 }
9320 }
4ce794b7
AM		 9321 p = htab->glink->contents;
9322 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 9323 p += 4;
4ce794b7 9324 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 9325 p += 4;
4ce794b7 9326 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 9327 p += 4;
4ce794b7 9328 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 9329 p += 4;
4ce794b7 9330 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 9331 p += 4;
4ce794b7 9332 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 9333 p += 4;
4ce794b7 9334 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 9335 p += 4;
4ce794b7 9336 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 9337 p += 4;
4ce794b7 9338 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 9339 p += 4;
4ce794b7 9340 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 9341 p += 4;
4ce794b7 9342 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 9343 p += 4;
4ce794b7 9344 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 9345 p += 4;
4ce794b7 9346 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 9347 p += 4;
4ce794b7 9348 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 9349 p += 4;
4ce794b7 9350 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 9351 p += 4;
4ce794b7 9352 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM		 9353 p += 4;
9354
9f951329
AM		 9355 /* Build the .glink lazy link call stubs. */
9356 indx = 0;
eea6121a 9357 while (p < htab->glink->contents + htab->glink->size)
9f951329
AM		 9358 {
9359 if (indx < 0x8000)
9360 {
4ce794b7 9361 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 9362 p += 4;
9363 }
9364 else
9365 {
4ce794b7 9366 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 9367 p += 4;
4ce794b7 9368 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 9369 p += 4;
9370 }
4ce794b7
AM		 9371 bfd_put_32 (htab->glink->owner,
9372 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 9373 indx++;
9f951329
AM		 9374 p += 4;
9375 }
eea6121a 9376 htab->glink->rawsize = p - htab->glink->contents;
5d1634d7 9377 }
5d1634d7 9378
eea6121a 9379 if (htab->brlt->size != 0)
721956f4 9380 {
4ce794b7 9381 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 9382 htab->brlt->size);
4ce794b7 9383 if (htab->brlt->contents == NULL)
b34976b6 9384 return FALSE;
721956f4 9385 }
ee75fd95 9386 if (htab->relbrlt != NULL && htab->relbrlt->size != 0)
63bc6f6c
AM		 9387 {
9388 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 9389 htab->relbrlt->size);
63bc6f6c
AM		 9390 if (htab->relbrlt->contents == NULL)
9391 return FALSE;
9392 }
5d1634d7 9393
721956f4
AM		 9394 /* Build the stubs as directed by the stub hash table. */
9395 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 9396
721956f4
AM		 9397 for (stub_sec = htab->stub_bfd->sections;
9398 stub_sec != NULL;
9399 stub_sec = stub_sec->next)
e717da7e
AM		 9400 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
9401 {
9402 stub_sec_count += 1;
eea6121a 9403 if (stub_sec->rawsize != stub_sec->size)
e717da7e
AM		 9404 break;
9405 }
5d1634d7 9406
721956f4 9407 if (stub_sec != NULL
eea6121a 9408 || htab->glink->rawsize != htab->glink->size)
5d1634d7 9409 {
b34976b6 9410 htab->stub_error = TRUE;
721956f4 9411 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 9412 }
721956f4 9413
d2a300cf
AM		 9414 if (htab->stub_error)
9415 return FALSE;
9416
9417 if (stats != NULL)
9418 {
9419 *stats = bfd_malloc (500);
9420 if (*stats == NULL)
9421 return FALSE;
9422
ee75fd95 9423 sprintf (*stats, _("linker stubs in %u group%s\n"
d2a300cf
AM		 9424 " branch %lu\n"
9425 " toc adjust %lu\n"
9426 " long branch %lu\n"
9427 " long toc adj %lu\n"
9428 " plt call %lu"),
e717da7e 9429 stub_sec_count,
ee75fd95 9430 stub_sec_count == 1 ? "" : "s",
4ce794b7
AM		 9431 htab->stub_count[ppc_stub_long_branch - 1],
9432 htab->stub_count[ppc_stub_long_branch_r2off - 1],
9433 htab->stub_count[ppc_stub_plt_branch - 1],
9434 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
9435 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 9436 }
9437 return TRUE;
5bd4f169
AM		 9438}
9439
99877b66
AM		 9440/* This function undoes the changes made by add_symbol_adjust. */
9441
9442static bfd_boolean
9443undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
9444{
9445 struct ppc_link_hash_entry *eh;
9446
9447 if (h->root.type == bfd_link_hash_indirect)
9448 return TRUE;
9449
9450 if (h->root.type == bfd_link_hash_warning)
9451 h = (struct elf_link_hash_entry *) h->root.u.i.link;
9452
9453 eh = (struct ppc_link_hash_entry *) h;
9454 if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined)
9455 return TRUE;
9456
9457 eh->elf.root.type = bfd_link_hash_undefined;
9458 return TRUE;
9459}
9460
9461void
9462ppc64_elf_restore_symbols (struct bfd_link_info *info)
9463{
9464 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9465 elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info);
9466}
9467
60124e18
AM		 9468/* What to do when ld finds relocations against symbols defined in
9469 discarded sections. */
9470
9471static unsigned int
9472ppc64_elf_action_discarded (asection *sec)
9473{
9474 if (strcmp (".opd", sec->name) == 0)
9475 return 0;
9476
9477 if (strcmp (".toc", sec->name) == 0)
9478 return 0;
9479
9480 return _bfd_elf_default_action_discarded (sec);
9481}
9482
5bd4f169
AM		 9483/* The RELOCATE_SECTION function is called by the ELF backend linker
9484 to handle the relocations for a section.
9485
9486 The relocs are always passed as Rela structures; if the section
9487 actually uses Rel structures, the r_addend field will always be
9488 zero.
9489
9490 This function is responsible for adjust the section contents as
9491 necessary, and (if using Rela relocs and generating a
1049f94e 9492 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 9493 necessary.
9494
9495 This function does not have to worry about setting the reloc
9496 address or the reloc symbol index.
9497
9498 LOCAL_SYMS is a pointer to the swapped in local symbols.
9499
9500 LOCAL_SECTIONS is an array giving the section in the input file
9501 corresponding to the st_shndx field of each local symbol.
9502
9503 The global hash table entry for the global symbols can be found
9504 via elf_sym_hashes (input_bfd).
9505
1049f94e 9506 When generating relocatable output, this function must handle
5bd4f169
AM		 9507 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
9508 going to be the section symbol corresponding to the output
9509 section, which means that the addend must be adjusted
9510 accordingly. */
9511
b34976b6 9512static bfd_boolean
4ce794b7
AM		 9513ppc64_elf_relocate_section (bfd *output_bfd,
9514 struct bfd_link_info *info,
9515 bfd *input_bfd,
9516 asection *input_section,
9517 bfd_byte *contents,
9518 Elf_Internal_Rela *relocs,
9519 Elf_Internal_Sym *local_syms,
9520 asection **local_sections)
5bd4f169 9521{
65f38f15 9522 struct ppc_link_hash_table *htab;
5bd4f169
AM		 9523 Elf_Internal_Shdr *symtab_hdr;
9524 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 9525 Elf_Internal_Rela *rel;
9526 Elf_Internal_Rela *relend;
411e1bfb
AM		 9527 Elf_Internal_Rela outrel;
9528 bfd_byte *loc;
411e1bfb 9529 struct got_entry **local_got_ents;
5bd4f169 9530 bfd_vma TOCstart;
b34976b6
AM		 9531 bfd_boolean ret = TRUE;
9532 bfd_boolean is_opd;
96e0dda4 9533 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 9534 bfd_boolean is_power4 = FALSE;
5bd4f169 9535
1049f94e 9536 if (info->relocatable)
b34976b6 9537 return TRUE;
b491616a 9538
65f38f15 9539 /* Initialize howto table if needed. */
5bd4f169 9540 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 9541 ppc_howto_init ();
9542
65f38f15 9543 htab = ppc_hash_table (info);
ee75fd95
AM		 9544
9545 /* Don't relocate stub sections. */
9546 if (input_section->owner == htab->stub_bfd)
9547 return TRUE;
9548
411e1bfb 9549 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 9550 TOCstart = elf_gp (output_bfd);
5bd4f169
AM		 9551 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
9552 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 9553 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 9554
5bd4f169
AM		 9555 rel = relocs;
9556 relend = relocs + input_section->reloc_count;
9557 for (; rel < relend; rel++)
9558 {
04c9666a 9559 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM		 9560 bfd_vma addend;
9561 bfd_reloc_status_type r;
9562 Elf_Internal_Sym *sym;
9563 asection *sec;
039b3fef
AM		 9564 struct elf_link_hash_entry *h_elf;
9565 struct ppc_link_hash_entry *h;
9566 struct ppc_link_hash_entry *fdh;
5bd4f169 9567 const char *sym_name;
0d4792f7 9568 unsigned long r_symndx, toc_symndx;
951fd09b 9569 char tls_mask, tls_gd, tls_type;
0d4792f7 9570 char sym_type;
5bd4f169 9571 bfd_vma relocation;
b34976b6
AM		 9572 bfd_boolean unresolved_reloc;
9573 bfd_boolean warned;
50bc7936 9574 unsigned long insn, mask;
721956f4
AM		 9575 struct ppc_stub_hash_entry *stub_entry;
9576 bfd_vma max_br_offset;
9577 bfd_vma from;
5bd4f169 9578
4ce794b7 9579 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 9580 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 9581
9582 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
9583 symbol of the previous ADDR64 reloc. The symbol gives us the
9584 proper TOC base to use. */
9585 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
9586 && rel != relocs
9587 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
9588 && is_opd)
9589 r_symndx = ELF64_R_SYM (rel[-1].r_info);
9590
4ce794b7
AM		 9591 sym = NULL;
9592 sec = NULL;
039b3fef 9593 h_elf = NULL;
4ce794b7 9594 sym_name = NULL;
b34976b6
AM		 9595 unresolved_reloc = FALSE;
9596 warned = FALSE;
65f38f15 9597
0b13192e 9598 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 9599 {
9600 /* It's a local symbol. */
4025353c
AM		 9601 long *opd_adjust;
9602
5bd4f169
AM		 9603 sym = local_syms + r_symndx;
9604 sec = local_sections[r_symndx];
26c61ae5 9605 sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
0d4792f7 9606 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 9607 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
4025353c
AM		 9608 opd_adjust = get_opd_info (sec);
9609 if (opd_adjust != NULL)
1e2f5b6e 9610 {
3f764659 9611 long adjust = opd_adjust[(sym->st_value + rel->r_addend) / 8];
4025353c
AM		 9612 if (adjust == -1)
9613 relocation = 0;
9614 else
9615 relocation += adjust;
1e2f5b6e 9616 }
5bd4f169
AM		 9617 }
9618 else
9619 {
b2a8e766
AM		 9620 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
9621 r_symndx, symtab_hdr, sym_hashes,
039b3fef 9622 h_elf, sec, relocation,
b2a8e766 9623 unresolved_reloc, warned);
039b3fef
AM		 9624 sym_name = h_elf->root.root.string;
9625 sym_type = h_elf->type;
5bd4f169 9626 }
039b3fef 9627 h = (struct ppc_link_hash_entry *) h_elf;
5bd4f169 9628
951fd09b
AM		 9629 /* TLS optimizations. Replace instruction sequences and relocs
9630 based on information we collected in tls_optimize. We edit
9631 RELOCS so that --emit-relocs will output something sensible
9632 for the final instruction stream. */
9633 tls_mask = 0;
9634 tls_gd = 0;
0d4792f7 9635 toc_symndx = 0;
d881513a 9636 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 9637 {
9638 if (h != NULL)
039b3fef 9639 tls_mask = h->tls_mask;
411e1bfb
AM		 9640 else if (local_got_ents != NULL)
9641 {
e7b938ca
AM		 9642 char *lgot_masks;
9643 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
9644 tls_mask = lgot_masks[r_symndx];
411e1bfb 9645 }
0d4792f7
AM		 9646 if (tls_mask == 0 && r_type == R_PPC64_TLS)
9647 {
9648 /* Check for toc tls entries. */
9649 char *toc_tls;
9650
9651 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
9652 rel, input_bfd))
9653 return FALSE;
9654
9655 if (toc_tls)
9656 tls_mask = *toc_tls;
9657 }
9658 }
9659
9660 /* Check that tls relocs are used with tls syms, and non-tls
9661 relocs are used with non-tls syms. */
9662 if (r_symndx != 0
9663 && r_type != R_PPC64_NONE
9664 && (h == NULL
039b3fef
AM		 9665 || h->elf.root.type == bfd_link_hash_defined
9666 || h->elf.root.type == bfd_link_hash_defweak)
0d4792f7
AM		 9667 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
9668 {
9669 if (r_type == R_PPC64_TLS && tls_mask != 0)
9670 /* R_PPC64_TLS is OK against a symbol in the TOC. */
9671 ;
9672 else
9673 (*_bfd_error_handler)
9674 (sym_type == STT_TLS
d003868e
AM		 9675 ? _("%B(%A+0x%lx): %s used with TLS symbol %s")
9676 : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"),
9677 input_bfd,
9678 input_section,
0d4792f7
AM		 9679 (long) rel->r_offset,
9680 ppc64_elf_howto_table[r_type]->name,
9681 sym_name);
411e1bfb
AM		 9682 }
9683
9684 /* Ensure reloc mapping code below stays sane. */
9685 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
9686 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
9687 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
9688 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
9689 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
9690 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
9691 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
9692 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
9693 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
9694 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
9695 abort ();
0d4792f7 9696
411e1bfb
AM		 9697 switch (r_type)
9698 {
9699 default:
411e1bfb
AM		 9700 break;
9701
9702 case R_PPC64_TOC16:
9703 case R_PPC64_TOC16_LO:
9704 case R_PPC64_TOC16_DS:
9705 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 9706 {
9707 /* Check for toc tls entries. */
9708 char *toc_tls;
951fd09b 9709 int retval;
411e1bfb 9710
0d4792f7
AM		 9711 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
9712 rel, input_bfd);
951fd09b 9713 if (retval == 0)
411e1bfb
AM		 9714 return FALSE;
9715
9716 if (toc_tls)
9717 {
951fd09b 9718 tls_mask = *toc_tls;
411e1bfb
AM		 9719 if (r_type == R_PPC64_TOC16_DS
9720 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 9721 {
9722 if (tls_mask != 0
9723 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
9724 goto toctprel;
9725 }
411e1bfb 9726 else
951fd09b
AM		 9727 {
9728 /* If we found a GD reloc pair, then we might be
9729 doing a GD->IE transition. */
9730 if (retval == 2)
9731 {
9732 tls_gd = TLS_TPRELGD;
9733 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9734 goto tls_get_addr_check;
9735 }
9736 else if (retval == 3)
9737 {
9738 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
9739 goto tls_get_addr_check;
9740 }
9741 }
411e1bfb
AM		 9742 }
9743 }
9744 break;
9745
9746 case R_PPC64_GOT_TPREL16_DS:
9747 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 9748 if (tls_mask != 0
9749 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 9750 {
81407a69 9751 toctprel:
411e1bfb
AM		 9752 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
9753 insn &= 31 << 21;
9754 insn |= 0x3c0d0000; /* addis 0,13,0 */
9755 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
9756 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM		 9757 if (toc_symndx != 0)
9758 {
9759 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
9760 /* We changed the symbol. Start over in order to
9761 get h, sym, sec etc. right. */
9762 rel--;
9763 continue;
9764 }
9765 else
9766 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9767 }
9768 break;
9769
9770 case R_PPC64_TLS:
951fd09b
AM		 9771 if (tls_mask != 0
9772 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 9773 {
50bc7936 9774 bfd_vma rtra;
411e1bfb 9775 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 9776 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 9777 == ((31 << 26) | (13 << 11)))
9778 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 9779 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 9780 == ((31 << 26) | (13 << 16)))
9781 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
9782 else
9783 abort ();
9784 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
9785 /* add -> addi. */
9786 insn = 14 << 26;
9787 else if ((insn & (31 << 1)) == 23 << 1
9788 && ((insn & (31 << 6)) < 14 << 6
9789 || ((insn & (31 << 6)) >= 16 << 6
9790 && (insn & (31 << 6)) < 24 << 6)))
9791 /* load and store indexed -> dform. */
9792 insn = (32 | ((insn >> 6) & 31)) << 26;
9793 else if ((insn & (31 << 1)) == 21 << 1
9794 && (insn & (0x1a << 6)) == 0)
9795 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
9796 insn = (((58 | ((insn >> 6) & 4)) << 26)
9797 | ((insn >> 6) & 1));
9798 else if ((insn & (31 << 1)) == 21 << 1
9799 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
9800 /* lwax -> lwa. */
9801 insn = (58 << 26) | 2;
9802 else
9803 abort ();
9804 insn |= rtra;
9805 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb
AM		 9806 /* Was PPC64_TLS which sits on insn boundary, now
9807 PPC64_TPREL16_LO which is at insn+2. */
9808 rel->r_offset += 2;
0d4792f7
AM		 9809 r_type = R_PPC64_TPREL16_LO;
9810 if (toc_symndx != 0)
9811 {
9812 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
9813 /* We changed the symbol. Start over in order to
9814 get h, sym, sec etc. right. */
9815 rel--;
9816 continue;
9817 }
9818 else
9819 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9820 }
9821 break;
9822
411e1bfb
AM		 9823 case R_PPC64_GOT_TLSGD16_HI:
9824 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 9825 tls_gd = TLS_TPRELGD;
9826 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9827 goto tls_gdld_hi;
9828 break;
9829
411e1bfb
AM		 9830 case R_PPC64_GOT_TLSLD16_HI:
9831 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 9832 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 9833 {
951fd09b
AM		 9834 tls_gdld_hi:
9835 if ((tls_mask & tls_gd) != 0)
9836 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
9837 + R_PPC64_GOT_TPREL16_DS);
9838 else
411e1bfb 9839 {
951fd09b
AM		 9840 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
9841 rel->r_offset -= 2;
9842 r_type = R_PPC64_NONE;
411e1bfb 9843 }
951fd09b 9844 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9845 }
9846 break;
9847
951fd09b
AM		 9848 case R_PPC64_GOT_TLSGD16:
9849 case R_PPC64_GOT_TLSGD16_LO:
9850 tls_gd = TLS_TPRELGD;
9851 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
9852 goto tls_get_addr_check;
9853 break;
411e1bfb 9854
951fd09b
AM		 9855 case R_PPC64_GOT_TLSLD16:
9856 case R_PPC64_GOT_TLSLD16_LO:
9857 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
9858 {
9859 tls_get_addr_check:
9860 if (rel + 1 < relend)
411e1bfb 9861 {
951fd09b
AM		 9862 enum elf_ppc64_reloc_type r_type2;
9863 unsigned long r_symndx2;
9864 struct elf_link_hash_entry *h2;
9865 bfd_vma insn1, insn2, insn3;
9866 bfd_vma offset;
9867
9868 /* The next instruction should be a call to
9869 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 9870 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM		 9871 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
9872 if (r_symndx2 < symtab_hdr->sh_info
9873 || (r_type2 != R_PPC64_REL14
9874 && r_type2 != R_PPC64_REL14_BRTAKEN
9875 && r_type2 != R_PPC64_REL14_BRNTAKEN
9876 && r_type2 != R_PPC64_REL24))
9877 break;
9878
9879 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
9880 while (h2->root.type == bfd_link_hash_indirect
9881 || h2->root.type == bfd_link_hash_warning)
9882 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
8387904d
AM		 9883 if (h2 == NULL || (h2 != &htab->tls_get_addr->elf
9884 && h2 != &htab->tls_get_addr_fd->elf))
951fd09b
AM		 9885 break;
9886
9887 /* OK, it checks out. Replace the call. */
9888 offset = rel[1].r_offset;
9889 insn1 = bfd_get_32 (output_bfd,
9890 contents + rel->r_offset - 2);
9891 insn3 = bfd_get_32 (output_bfd,
9892 contents + offset + 4);
9893 if ((tls_mask & tls_gd) != 0)
411e1bfb 9894 {
951fd09b
AM		 9895 /* IE */
9896 insn1 &= (1 << 26) - (1 << 2);
9897 insn1 |= 58 << 26; /* ld */
9898 insn2 = 0x7c636a14; /* add 3,3,13 */
9899 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
9900 if ((tls_mask & TLS_EXPLICIT) == 0)
9901 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
9902 + R_PPC64_GOT_TPREL16_DS);
9903 else
9904 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
9905 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 9906 }
9907 else
951fd09b
AM		 9908 {
9909 /* LE */
9910 insn1 = 0x3c6d0000; /* addis 3,13,0 */
9911 insn2 = 0x38630000; /* addi 3,3,0 */
9912 if (tls_gd == 0)
9913 {
9914 /* Was an LD reloc. */
9915 r_symndx = 0;
e1918d23
AM		 9916 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
9917 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
951fd09b 9918 }
0d4792f7
AM		 9919 else if (toc_symndx != 0)
9920 r_symndx = toc_symndx;
951fd09b
AM		 9921 r_type = R_PPC64_TPREL16_HA;
9922 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9923 rel[1].r_info = ELF64_R_INFO (r_symndx,
9924 R_PPC64_TPREL16_LO);
9925 rel[1].r_offset += 2;
9926 }
9927 if (insn3 == NOP
9928 || insn3 == CROR_151515 || insn3 == CROR_313131)
9929 {
9930 insn3 = insn2;
9931 insn2 = NOP;
9932 rel[1].r_offset += 4;
9933 }
9934 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
9935 bfd_put_32 (output_bfd, insn2, contents + offset);
9936 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
0d4792f7 9937 if (tls_gd == 0 || toc_symndx != 0)
951fd09b 9938 {
0d4792f7
AM		 9939 /* We changed the symbol. Start over in order
9940 to get h, sym, sec etc. right. */
951fd09b
AM		 9941 rel--;
9942 continue;
9943 }
411e1bfb 9944 }
411e1bfb 9945 }
411e1bfb
AM		 9946 break;
9947
9948 case R_PPC64_DTPMOD64:
951fd09b
AM		 9949 if (rel + 1 < relend
9950 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
9951 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 9952 {
951fd09b
AM		 9953 if ((tls_mask & TLS_GD) == 0)
9954 {
9955 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
9956 if ((tls_mask & TLS_TPRELGD) != 0)
9957 r_type = R_PPC64_TPREL64;
9958 else
9959 {
4ce794b7 9960 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 9961 r_type = R_PPC64_NONE;
9962 }
9963 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9964 }
9965 }
9966 else
9967 {
9968 if ((tls_mask & TLS_LD) == 0)
411e1bfb 9969 {
4ce794b7 9970 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 9971 r_type = R_PPC64_NONE;
951fd09b 9972 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 9973 }
411e1bfb
AM		 9974 }
9975 break;
9976
9977 case R_PPC64_TPREL64:
951fd09b 9978 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 9979 {
9980 r_type = R_PPC64_NONE;
9981 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
9982 }
9983 break;
9984 }
9985
9986 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 9987 insn = 0;
b25116a9
AM		 9988 max_br_offset = 1 << 25;
9989 addend = rel->r_addend;
65f38f15 9990 switch (r_type)
5bd4f169
AM		 9991 {
9992 default:
65f38f15 9993 break;
5bd4f169 9994
65f38f15
AM		 9995 /* Branch taken prediction relocations. */
9996 case R_PPC64_ADDR14_BRTAKEN:
9997 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 9998 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
9999 /* Fall thru. */
65f38f15 10000
86c76c7b 10001 /* Branch not taken prediction relocations. */
65f38f15
AM		 10002 case R_PPC64_ADDR14_BRNTAKEN:
10003 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 10004 insn |= bfd_get_32 (output_bfd,
10005 contents + rel->r_offset) & ~(0x01 << 21);
b25116a9 10006 /* Fall thru. */
86c76c7b 10007
b25116a9
AM		 10008 case R_PPC64_REL14:
10009 max_br_offset = 1 << 15;
10010 /* Fall thru. */
5bd4f169 10011
65f38f15 10012 case R_PPC64_REL24:
ad8e1ba5
AM		 10013 /* Calls to functions with a different TOC, such as calls to
10014 shared objects, need to alter the TOC pointer. This is
10015 done using a linkage stub. A REL24 branching to these
10016 linkage stubs needs to be followed by a nop, as the nop
10017 will be replaced with an instruction to restore the TOC
10018 base pointer. */
b25116a9 10019 stub_entry = NULL;
8387904d 10020 fdh = h;
ad8e1ba5 10021 if (((h != NULL
039b3fef
AM		 10022 && (((fdh = h->oh) != NULL
10023 && fdh->elf.plt.plist != NULL)
10024 || (fdh = h)->elf.plt.plist != NULL))
8387904d 10025 || (sec != NULL
ad8e1ba5 10026 && sec->output_section != NULL
b25116a9 10027 && sec->id <= htab->top_id
ad8e1ba5
AM		 10028 && (htab->stub_group[sec->id].toc_off
10029 != htab->stub_group[input_section->id].toc_off)))
721956f4 10030 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 10031 rel, htab)) != NULL
10032 && (stub_entry->stub_type == ppc_stub_plt_call
10033 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
10034 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 10035 {
b25116a9 10036 bfd_boolean can_plt_call = FALSE;
721956f4 10037
eea6121a 10038 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 10039 {
b25116a9
AM		 10040 unsigned long nop;
10041 nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
10042 if (nop == NOP
10043 || nop == CROR_151515 || nop == CROR_313131)
41bd81ab 10044 {
4ce794b7 10045 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 10046 contents + rel->r_offset + 4);
b25116a9 10047 can_plt_call = TRUE;
41bd81ab 10048 }
5bd4f169 10049 }
721956f4
AM		 10050
10051 if (!can_plt_call)
10052 {
ad8e1ba5
AM		 10053 if (stub_entry->stub_type == ppc_stub_plt_call)
10054 {
10055 /* If this is a plain branch rather than a branch
10056 and link, don't require a nop. */
b25116a9
AM		 10057 unsigned long br;
10058 br = bfd_get_32 (input_bfd, contents + rel->r_offset);
10059 if ((br & 1) == 0)
10060 can_plt_call = TRUE;
15b552e9
AM		 10061 else
10062 stub_entry = NULL;
ad8e1ba5 10063 }
6ab189d5 10064 else if (h != NULL
039b3fef 10065 && strcmp (h->elf.root.root.string,
6ab189d5
AM		 10066 ".__libc_start_main") == 0)
10067 {
10068 /* Allow crt1 branch to go via a toc adjusting stub. */
b25116a9 10069 can_plt_call = TRUE;
6ab189d5 10070 }
ad8e1ba5
AM		 10071 else
10072 {
10073 if (strcmp (input_section->output_section->name,
10074 ".init") == 0
10075 || strcmp (input_section->output_section->name,
10076 ".fini") == 0)
10077 (*_bfd_error_handler)
d003868e 10078 (_("%B(%A+0x%lx): automatic multiple TOCs "
ad8e1ba5
AM		 10079 "not supported using your crt files; "
10080 "recompile with -mminimal-toc or upgrade gcc"),
d003868e
AM		 10081 input_bfd,
10082 input_section,
ad8e1ba5
AM		 10083 (long) rel->r_offset);
10084 else
10085 (*_bfd_error_handler)
d003868e 10086 (_("%B(%A+0x%lx): sibling call optimization to `%s' "
ad8e1ba5
AM		 10087 "does not allow automatic multiple TOCs; "
10088 "recompile with -mminimal-toc or "
10089 "-fno-optimize-sibling-calls, "
10090 "or make `%s' extern"),
d003868e
AM		 10091 input_bfd,
10092 input_section,
ad8e1ba5
AM		 10093 (long) rel->r_offset,
10094 sym_name,
10095 sym_name);
10096 bfd_set_error (bfd_error_bad_value);
10097 ret = FALSE;
10098 }
721956f4
AM		 10099 }
10100
b25116a9
AM		 10101 if (can_plt_call
10102 && stub_entry->stub_type == ppc_stub_plt_call)
10103 unresolved_reloc = FALSE;
10104 }
10105
8387904d
AM		 10106 if (stub_entry == NULL
10107 && get_opd_info (sec) != NULL)
10108 {
10109 /* The branch destination is the value of the opd entry. */
10110 bfd_vma off = (relocation - sec->output_section->vma
10111 - sec->output_offset + rel->r_addend);
10112 bfd_vma dest = opd_entry_value (sec, off, NULL, NULL);
10113 if (dest != (bfd_vma) -1)
10114 {
10115 relocation = dest;
10116 addend = 0;
10117 }
10118 }
10119
b25116a9
AM		 10120 /* If the branch is out of reach we ought to have a long
10121 branch stub. */
10122 from = (rel->r_offset
10123 + input_section->output_offset
10124 + input_section->output_section->vma);
10125
10126 if (stub_entry == NULL
10127 && (relocation + rel->r_addend - from + max_br_offset
10128 >= 2 * max_br_offset)
10129 && r_type != R_PPC64_ADDR14_BRTAKEN
10130 && r_type != R_PPC64_ADDR14_BRNTAKEN)
039b3fef
AM		 10131 stub_entry = ppc_get_stub_entry (input_section, sec, h, rel,
10132 htab);
b25116a9
AM		 10133
10134 if (stub_entry != NULL)
10135 {
10136 /* Munge up the value and addend so that we call the stub
10137 rather than the procedure directly. */
10138 relocation = (stub_entry->stub_offset
10139 + stub_entry->stub_sec->output_offset
10140 + stub_entry->stub_sec->output_section->vma);
10141 addend = 0;
10142 }
10143
10144 if (insn != 0)
10145 {
10146 if (is_power4)
721956f4 10147 {
b25116a9
AM		 10148 /* Set 'a' bit. This is 0b00010 in BO field for branch
10149 on CR(BI) insns (BO == 001at or 011at), and 0b01000
10150 for branch on CTR insns (BO == 1a00t or 1a01t). */
10151 if ((insn & (0x14 << 21)) == (0x04 << 21))
10152 insn |= 0x02 << 21;
10153 else if ((insn & (0x14 << 21)) == (0x10 << 21))
10154 insn |= 0x08 << 21;
10155 else
10156 break;
10157 }
10158 else
10159 {
10160 /* Invert 'y' bit if not the default. */
10161 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
10162 insn ^= 0x01 << 21;
721956f4 10163 }
b25116a9
AM		 10164
10165 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
5bd4f169 10166 }
e86ce104 10167
06da1e8e
AM		 10168 /* NOP out calls to undefined weak functions.
10169 We can thus call a weak function without first
10170 checking whether the function is defined. */
b25116a9 10171 else if (h != NULL
039b3fef 10172 && h->elf.root.type == bfd_link_hash_undefweak
b25116a9
AM		 10173 && r_type == R_PPC64_REL24
10174 && relocation == 0
10175 && rel->r_addend == 0)
e86ce104 10176 {
06da1e8e
AM		 10177 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
10178 continue;
e86ce104 10179 }
65f38f15
AM		 10180 break;
10181 }
5bd4f169 10182
65f38f15 10183 /* Set `addend'. */
411e1bfb 10184 tls_type = 0;
65f38f15
AM		 10185 switch (r_type)
10186 {
10187 default:
10188 (*_bfd_error_handler)
d003868e
AM		 10189 (_("%B: unknown relocation type %d for symbol %s"),
10190 input_bfd, (int) r_type, sym_name);
5bd4f169 10191
65f38f15 10192 bfd_set_error (bfd_error_bad_value);
b34976b6 10193 ret = FALSE;
65f38f15 10194 continue;
5bd4f169 10195
65f38f15 10196 case R_PPC64_NONE:
411e1bfb 10197 case R_PPC64_TLS:
04c9666a
AM		 10198 case R_PPC64_GNU_VTINHERIT:
10199 case R_PPC64_GNU_VTENTRY:
65f38f15 10200 continue;
5bd4f169
AM		 10201
10202 /* GOT16 relocations. Like an ADDR16 using the symbol's
10203 address in the GOT as relocation value instead of the
411e1bfb 10204 symbol's value itself. Also, create a GOT entry for the
5bd4f169 10205 symbol and put the symbol value there. */
411e1bfb
AM		 10206 case R_PPC64_GOT_TLSGD16:
10207 case R_PPC64_GOT_TLSGD16_LO:
10208 case R_PPC64_GOT_TLSGD16_HI:
10209 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 10210 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 10211 goto dogot;
10212
10213 case R_PPC64_GOT_TLSLD16:
10214 case R_PPC64_GOT_TLSLD16_LO:
10215 case R_PPC64_GOT_TLSLD16_HI:
10216 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 10217 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 10218 goto dogot;
10219
10220 case R_PPC64_GOT_TPREL16_DS:
10221 case R_PPC64_GOT_TPREL16_LO_DS:
10222 case R_PPC64_GOT_TPREL16_HI:
10223 case R_PPC64_GOT_TPREL16_HA:
10224 tls_type = TLS_TLS | TLS_TPREL;
10225 goto dogot;
10226
10227 case R_PPC64_GOT_DTPREL16_DS:
10228 case R_PPC64_GOT_DTPREL16_LO_DS:
10229 case R_PPC64_GOT_DTPREL16_HI:
10230 case R_PPC64_GOT_DTPREL16_HA:
10231 tls_type = TLS_TLS | TLS_DTPREL;
10232 goto dogot;
10233
65f38f15
AM		 10234 case R_PPC64_GOT16:
10235 case R_PPC64_GOT16_LO:
10236 case R_PPC64_GOT16_HI:
10237 case R_PPC64_GOT16_HA:
10238 case R_PPC64_GOT16_DS:
10239 case R_PPC64_GOT16_LO_DS:
411e1bfb 10240 dogot:
5bd4f169
AM		 10241 {
10242 /* Relocation is to the entry for this symbol in the global
10243 offset table. */
e717da7e 10244 asection *got;
d881513a 10245 bfd_vma *offp;
5bd4f169 10246 bfd_vma off;
d881513a 10247 unsigned long indx = 0;
65f38f15 10248
d881513a
AM		 10249 if (tls_type == (TLS_TLS | TLS_LD)
10250 && (h == NULL
f5385ebf 10251 || !h->elf.def_dynamic))
e717da7e 10252 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 10253 else
5bd4f169 10254 {
d881513a 10255 struct got_entry *ent;
5bd4f169 10256
d881513a
AM		 10257 if (h != NULL)
10258 {
10259 bfd_boolean dyn = htab->elf.dynamic_sections_created;
039b3fef
AM		 10260 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
10261 &h->elf)
d881513a 10262 || (info->shared
039b3fef 10263 && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))
d881513a
AM		 10264 /* This is actually a static link, or it is a
10265 -Bsymbolic link and the symbol is defined
10266 locally, or the symbol was forced to be local
10267 because of a version file. */
10268 ;
10269 else
10270 {
039b3fef 10271 indx = h->elf.dynindx;
d881513a
AM		 10272 unresolved_reloc = FALSE;
10273 }
039b3fef 10274 ent = h->elf.got.glist;
d881513a 10275 }
411e1bfb 10276 else
5bd4f169 10277 {
d881513a
AM		 10278 if (local_got_ents == NULL)
10279 abort ();
10280 ent = local_got_ents[r_symndx];
5bd4f169 10281 }
d881513a
AM		 10282
10283 for (; ent != NULL; ent = ent->next)
10284 if (ent->addend == rel->r_addend
e717da7e 10285 && ent->owner == input_bfd
d881513a
AM		 10286 && ent->tls_type == tls_type)
10287 break;
10288 if (ent == NULL)
10289 abort ();
10290 offp = &ent->got.offset;
5bd4f169 10291 }
411e1bfb 10292
e717da7e
AM		 10293 got = ppc64_elf_tdata (input_bfd)->got;
10294 if (got == NULL)
10295 abort ();
10296
411e1bfb
AM		 10297 /* The offset must always be a multiple of 8. We use the
10298 least significant bit to record whether we have already
10299 processed this entry. */
d881513a 10300 off = *offp;
411e1bfb
AM		 10301 if ((off & 1) != 0)
10302 off &= ~1;
5bd4f169
AM		 10303 else
10304 {
411e1bfb
AM		 10305 /* Generate relocs for the dynamic linker, except in
10306 the case of TLSLD where we'll use one entry per
10307 module. */
e717da7e
AM		 10308 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
10309
d881513a 10310 *offp = off | 1;
4e795f50
AM		 10311 if ((info->shared || indx != 0)
10312 && (h == NULL
039b3fef
AM		 10313 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10314 || h->elf.root.type != bfd_link_hash_undefweak))
5bd4f169 10315 {
e717da7e
AM		 10316 outrel.r_offset = (got->output_section->vma
10317 + got->output_offset
411e1bfb 10318 + off);
81407a69 10319 outrel.r_addend = rel->r_addend;
d881513a 10320 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 10321 {
411e1bfb 10322 outrel.r_addend = 0;
e515b051 10323 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 10324 if (tls_type == (TLS_TLS | TLS_GD))
10325 {
e717da7e
AM		 10326 loc = relgot->contents;
10327 loc += (relgot->reloc_count++
d881513a
AM		 10328 * sizeof (Elf64_External_Rela));
10329 bfd_elf64_swap_reloca_out (output_bfd,
10330 &outrel, loc);
e515b051 10331 outrel.r_offset += 8;
81407a69 10332 outrel.r_addend = rel->r_addend;
d881513a
AM		 10333 outrel.r_info
10334 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 10335 }
411e1bfb 10336 }
951fd09b 10337 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 10338 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 10339 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 10340 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
10341 else if (indx == 0)
81407a69
AM		 10342 {
10343 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
10344
10345 /* Write the .got section contents for the sake
10346 of prelink. */
e717da7e 10347 loc = got->contents + off;
23fbd6fa
JJ		 10348 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
10349 loc);
81407a69 10350 }
411e1bfb
AM		 10351 else
10352 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 10353
10354 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 10355 {
10356 outrel.r_addend += relocation;
10357 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 10358 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 10359 }
e717da7e
AM		 10360 loc = relgot->contents;
10361 loc += (relgot->reloc_count++
411e1bfb
AM		 10362 * sizeof (Elf64_External_Rela));
10363 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10364 }
10365
ad8e1ba5 10366 /* Init the .got section contents here if we're not
81407a69 10367 emitting a reloc. */
d881513a 10368 else
411e1bfb 10369 {
d881513a 10370 relocation += rel->r_addend;
7b609f53
AM		 10371 if (tls_type == (TLS_TLS | TLS_LD))
10372 relocation = 1;
10373 else if (tls_type != 0)
411e1bfb 10374 {
e1918d23 10375 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 10376 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 10377 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 10378
7b609f53
AM		 10379 if (tls_type == (TLS_TLS | TLS_GD))
10380 {
10381 bfd_put_64 (output_bfd, relocation,
e717da7e 10382 got->contents + off + 8);
7b609f53
AM		 10383 relocation = 1;
10384 }
411e1bfb 10385 }
7b609f53 10386
411e1bfb 10387 bfd_put_64 (output_bfd, relocation,
e717da7e 10388 got->contents + off);
5bd4f169
AM		 10389 }
10390 }
10391
65f38f15
AM		 10392 if (off >= (bfd_vma) -2)
10393 abort ();
10394
e717da7e 10395 relocation = got->output_offset + off;
65f38f15 10396
5bd4f169 10397 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 10398 addend = -TOC_BASE_OFF;
5bd4f169 10399 }
65f38f15
AM		 10400 break;
10401
10402 case R_PPC64_PLT16_HA:
10403 case R_PPC64_PLT16_HI:
10404 case R_PPC64_PLT16_LO:
10405 case R_PPC64_PLT32:
10406 case R_PPC64_PLT64:
10407 /* Relocation is to the entry for this symbol in the
10408 procedure linkage table. */
10409
10410 /* Resolve a PLT reloc against a local symbol directly,
10411 without using the procedure linkage table. */
10412 if (h == NULL)
10413 break;
10414
411e1bfb
AM		 10415 /* It's possible that we didn't make a PLT entry for this
10416 symbol. This happens when statically linking PIC code,
10417 or when using -Bsymbolic. Go find a match if there is a
10418 PLT entry. */
4ce794b7 10419 if (htab->plt != NULL)
65f38f15 10420 {
411e1bfb 10421 struct plt_entry *ent;
039b3fef 10422 for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 10423 if (ent->addend == rel->r_addend
10424 && ent->plt.offset != (bfd_vma) -1)
10425 {
4ce794b7
AM		 10426 relocation = (htab->plt->output_section->vma
10427 + htab->plt->output_offset
411e1bfb
AM		 10428 + ent->plt.offset);
10429 unresolved_reloc = FALSE;
10430 }
65f38f15 10431 }
65f38f15 10432 break;
5bd4f169 10433
0b13192e
AM		 10434 case R_PPC64_TOC:
10435 /* Relocation value is TOC base. */
10436 relocation = TOCstart;
10437 if (r_symndx == 0)
10438 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM		 10439 else if (unresolved_reloc)
10440 ;
10441 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM		 10442 relocation += htab->stub_group[sec->id].toc_off;
10443 else
10444 unresolved_reloc = TRUE;
10445 goto dodyn2;
10446
5bd4f169
AM		 10447 /* TOC16 relocs. We want the offset relative to the TOC base,
10448 which is the address of the start of the TOC plus 0x8000.
10449 The TOC consists of sections .got, .toc, .tocbss, and .plt,
10450 in this order. */
65f38f15
AM		 10451 case R_PPC64_TOC16:
10452 case R_PPC64_TOC16_LO:
10453 case R_PPC64_TOC16_HI:
10454 case R_PPC64_TOC16_DS:
10455 case R_PPC64_TOC16_LO_DS:
10456 case R_PPC64_TOC16_HA:
ad8e1ba5 10457 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 10458 break;
10459
10460 /* Relocate against the beginning of the section. */
65f38f15
AM		 10461 case R_PPC64_SECTOFF:
10462 case R_PPC64_SECTOFF_LO:
10463 case R_PPC64_SECTOFF_HI:
10464 case R_PPC64_SECTOFF_DS:
10465 case R_PPC64_SECTOFF_LO_DS:
10466 case R_PPC64_SECTOFF_HA:
4ce794b7 10467 if (sec != NULL)
65f38f15 10468 addend -= sec->output_section->vma;
5bd4f169
AM		 10469 break;
10470
721956f4
AM		 10471 case R_PPC64_REL14:
10472 case R_PPC64_REL14_BRNTAKEN:
10473 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 10474 case R_PPC64_REL24:
10475 break;
10476
411e1bfb
AM		 10477 case R_PPC64_TPREL16:
10478 case R_PPC64_TPREL16_LO:
10479 case R_PPC64_TPREL16_HI:
10480 case R_PPC64_TPREL16_HA:
10481 case R_PPC64_TPREL16_DS:
10482 case R_PPC64_TPREL16_LO_DS:
10483 case R_PPC64_TPREL16_HIGHER:
10484 case R_PPC64_TPREL16_HIGHERA:
10485 case R_PPC64_TPREL16_HIGHEST:
10486 case R_PPC64_TPREL16_HIGHESTA:
e1918d23 10487 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 10488 if (info->shared)
10489 /* The TPREL16 relocs shouldn't really be used in shared
10490 libs as they will result in DT_TEXTREL being set, but
10491 support them anyway. */
10492 goto dodyn;
10493 break;
10494
10495 case R_PPC64_DTPREL16:
10496 case R_PPC64_DTPREL16_LO:
10497 case R_PPC64_DTPREL16_HI:
10498 case R_PPC64_DTPREL16_HA:
10499 case R_PPC64_DTPREL16_DS:
10500 case R_PPC64_DTPREL16_LO_DS:
10501 case R_PPC64_DTPREL16_HIGHER:
10502 case R_PPC64_DTPREL16_HIGHERA:
10503 case R_PPC64_DTPREL16_HIGHEST:
10504 case R_PPC64_DTPREL16_HIGHESTA:
e1918d23 10505 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 10506 break;
10507
e515b051
AM		 10508 case R_PPC64_DTPMOD64:
10509 relocation = 1;
10510 addend = 0;
10511 goto dodyn;
10512
411e1bfb 10513 case R_PPC64_TPREL64:
e1918d23 10514 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM		 10515 goto dodyn;
10516
10517 case R_PPC64_DTPREL64:
e1918d23 10518 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM		 10519 /* Fall thru */
10520
65f38f15
AM		 10521 /* Relocations that may need to be propagated if this is a
10522 dynamic object. */
04c9666a 10523 case R_PPC64_REL30:
65f38f15
AM		 10524 case R_PPC64_REL32:
10525 case R_PPC64_REL64:
10526 case R_PPC64_ADDR14:
10527 case R_PPC64_ADDR14_BRNTAKEN:
10528 case R_PPC64_ADDR14_BRTAKEN:
10529 case R_PPC64_ADDR16:
10530 case R_PPC64_ADDR16_DS:
10531 case R_PPC64_ADDR16_HA:
10532 case R_PPC64_ADDR16_HI:
10533 case R_PPC64_ADDR16_HIGHER:
10534 case R_PPC64_ADDR16_HIGHERA:
10535 case R_PPC64_ADDR16_HIGHEST:
10536 case R_PPC64_ADDR16_HIGHESTA:
10537 case R_PPC64_ADDR16_LO:
10538 case R_PPC64_ADDR16_LO_DS:
10539 case R_PPC64_ADDR24:
65f38f15
AM		 10540 case R_PPC64_ADDR32:
10541 case R_PPC64_ADDR64:
10542 case R_PPC64_UADDR16:
10543 case R_PPC64_UADDR32:
10544 case R_PPC64_UADDR64:
ec338859
AM		 10545 /* r_symndx will be zero only for relocs against symbols
10546 from removed linkonce sections, or sections discarded by
10547 a linker script. */
411e1bfb 10548 dodyn:
5d1634d7
AM		 10549 if (r_symndx == 0)
10550 break;
10551 /* Fall thru. */
10552
0b13192e 10553 dodyn2:
5d1634d7 10554 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 10555 break;
10556
41bd81ab
AM		 10557 if (NO_OPD_RELOCS && is_opd)
10558 break;
10559
65f38f15 10560 if ((info->shared
4e795f50 10561 && (h == NULL
039b3fef
AM		 10562 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
10563 || h->elf.root.type != bfd_link_hash_undefweak)
411e1bfb 10564 && (MUST_BE_DYN_RELOC (r_type)
039b3fef 10565 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
f4656909
AM		 10566 || (ELIMINATE_COPY_RELOCS
10567 && !info->shared
65f38f15 10568 && h != NULL
039b3fef 10569 && h->elf.dynindx != -1
f5385ebf
AM		 10570 && !h->elf.non_got_ref
10571 && h->elf.def_dynamic
10572 && !h->elf.def_regular))
65f38f15
AM		 10573 {
10574 Elf_Internal_Rela outrel;
b34976b6 10575 bfd_boolean skip, relocate;
65f38f15 10576 asection *sreloc;
947216bf 10577 bfd_byte *loc;
1cf1f670 10578 bfd_vma out_off;
65f38f15
AM		 10579
10580 /* When generating a dynamic object, these relocations
10581 are copied into the output file to be resolved at run
10582 time. */
10583
b34976b6
AM		 10584 skip = FALSE;
10585 relocate = FALSE;
65f38f15 10586
1cf1f670
AM		 10587 out_off = _bfd_elf_section_offset (output_bfd, info,
10588 input_section, rel->r_offset);
10589 if (out_off == (bfd_vma) -1)
b34976b6 10590 skip = TRUE;
1cf1f670 10591 else if (out_off == (bfd_vma) -2)
b34976b6 10592 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 10593 out_off += (input_section->output_section->vma
10594 + input_section->output_offset);
10595 outrel.r_offset = out_off;
411e1bfb 10596 outrel.r_addend = rel->r_addend;
65f38f15 10597
1cf1f670
AM		 10598 /* Optimize unaligned reloc use. */
10599 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
10600 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
10601 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
10602 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
10603 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
10604 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
10605 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
10606 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
10607 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
10608
65f38f15 10609 if (skip)
0bb2d96a 10610 memset (&outrel, 0, sizeof outrel);
039b3fef 10611 else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf)
0b13192e
AM		 10612 && !is_opd
10613 && r_type != R_PPC64_TOC)
039b3fef 10614 outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type);
65f38f15
AM		 10615 else
10616 {
41bd81ab
AM		 10617 /* This symbol is local, or marked to become local,
10618 or this is an opd section reloc which must point
10619 at a local function. */
65f38f15 10620 outrel.r_addend += relocation;
e86ce104 10621 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 10622 {
3fad3c7c 10623 if (is_opd && h != NULL)
afbe61cf
AM		 10624 {
10625 /* Lie about opd entries. This case occurs
10626 when building shared libraries and we
10627 reference a function in another shared
3fad3c7c
AM		 10628 lib. The same thing happens for a weak
10629 definition in an application that's
10630 overridden by a strong definition in a
10631 shared lib. (I believe this is a generic
10632 bug in binutils handling of weak syms.)
10633 In these cases we won't use the opd
1e2f5b6e 10634 entry in this lib. */
b34976b6 10635 unresolved_reloc = FALSE;
afbe61cf 10636 }
65f38f15 10637 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 10638
10639 /* We need to relocate .opd contents for ld.so.
10640 Prelink also wants simple and consistent rules
10641 for relocs. This make all RELATIVE relocs have
10642 *r_offset equal to r_addend. */
10643 relocate = TRUE;
65f38f15
AM		 10644 }
10645 else
10646 {
10647 long indx = 0;
10648
41bd81ab 10649 if (bfd_is_abs_section (sec))
65f38f15
AM		 10650 ;
10651 else if (sec == NULL || sec->owner == NULL)
10652 {
10653 bfd_set_error (bfd_error_bad_value);
b34976b6 10654 return FALSE;
65f38f15
AM		 10655 }
10656 else
10657 {
10658 asection *osec;
10659
10660 osec = sec->output_section;
10661 indx = elf_section_data (osec)->dynindx;
10662
10663 /* We are turning this relocation into one
10664 against a section symbol, so subtract out
10665 the output section's address but not the
10666 offset of the input section in the output
10667 section. */
10668 outrel.r_addend -= osec->vma;
10669 }
10670
10671 outrel.r_info = ELF64_R_INFO (indx, r_type);
10672 }
10673 }
10674
10675 sreloc = elf_section_data (input_section)->sreloc;
10676 if (sreloc == NULL)
10677 abort ();
10678
947216bf
AM		 10679 loc = sreloc->contents;
10680 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 10681 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
10682
10683 /* If this reloc is against an external symbol, it will
10684 be computed at runtime, so there's no need to do
81407a69
AM		 10685 anything now. However, for the sake of prelink ensure
10686 that the section contents are a known value. */
65f38f15 10687 if (! relocate)
81407a69
AM		 10688 {
10689 unresolved_reloc = FALSE;
10690 /* The value chosen here is quite arbitrary as ld.so
10691 ignores section contents except for the special
10692 case of .opd where the contents might be accessed
10693 before relocation. Choose zero, as that won't
10694 cause reloc overflow. */
10695 relocation = 0;
10696 addend = 0;
10697 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
10698 to improve backward compatibility with older
10699 versions of ld. */
10700 if (r_type == R_PPC64_ADDR64)
10701 addend = outrel.r_addend;
10702 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 10703 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 10704 addend = (input_section->output_section->vma
10705 + input_section->output_offset
10706 + rel->r_offset);
81407a69 10707 }
65f38f15 10708 }
5bd4f169
AM		 10709 break;
10710
65f38f15
AM		 10711 case R_PPC64_COPY:
10712 case R_PPC64_GLOB_DAT:
10713 case R_PPC64_JMP_SLOT:
10714 case R_PPC64_RELATIVE:
10715 /* We shouldn't ever see these dynamic relocs in relocatable
10716 files. */
ae9a127f 10717 /* Fall through. */
65f38f15
AM		 10718
10719 case R_PPC64_PLTGOT16:
10720 case R_PPC64_PLTGOT16_DS:
10721 case R_PPC64_PLTGOT16_HA:
10722 case R_PPC64_PLTGOT16_HI:
10723 case R_PPC64_PLTGOT16_LO:
10724 case R_PPC64_PLTGOT16_LO_DS:
10725 case R_PPC64_PLTREL32:
10726 case R_PPC64_PLTREL64:
10727 /* These ones haven't been implemented yet. */
10728
10729 (*_bfd_error_handler)
d003868e
AM		 10730 (_("%B: relocation %s is not supported for symbol %s."),
10731 input_bfd,
4ce794b7 10732 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 10733
10734 bfd_set_error (bfd_error_invalid_operation);
b34976b6 10735 ret = FALSE;
5bd4f169 10736 continue;
65f38f15 10737 }
5bd4f169 10738
65f38f15
AM		 10739 /* Do any further special processing. */
10740 switch (r_type)
10741 {
10742 default:
10743 break;
10744
10745 case R_PPC64_ADDR16_HA:
10746 case R_PPC64_ADDR16_HIGHERA:
10747 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM		 10748 case R_PPC64_GOT16_HA:
10749 case R_PPC64_PLTGOT16_HA:
65f38f15
AM		 10750 case R_PPC64_PLT16_HA:
10751 case R_PPC64_TOC16_HA:
10752 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 10753 case R_PPC64_TPREL16_HA:
10754 case R_PPC64_DTPREL16_HA:
10755 case R_PPC64_GOT_TLSGD16_HA:
10756 case R_PPC64_GOT_TLSLD16_HA:
10757 case R_PPC64_GOT_TPREL16_HA:
10758 case R_PPC64_GOT_DTPREL16_HA:
10759 case R_PPC64_TPREL16_HIGHER:
10760 case R_PPC64_TPREL16_HIGHERA:
10761 case R_PPC64_TPREL16_HIGHEST:
10762 case R_PPC64_TPREL16_HIGHESTA:
10763 case R_PPC64_DTPREL16_HIGHER:
10764 case R_PPC64_DTPREL16_HIGHERA:
10765 case R_PPC64_DTPREL16_HIGHEST:
10766 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 10767 /* It's just possible that this symbol is a weak symbol
10768 that's not actually defined anywhere. In that case,
10769 'sec' would be NULL, and we should leave the symbol
10770 alone (it will be set to zero elsewhere in the link). */
10771 if (sec != NULL)
e515b051
AM		 10772 /* Add 0x10000 if sign bit in 0:15 is set.
10773 Bits 0:15 are not used. */
10774 addend += 0x8000;
65f38f15
AM		 10775 break;
10776
10777 case R_PPC64_ADDR16_DS:
10778 case R_PPC64_ADDR16_LO_DS:
10779 case R_PPC64_GOT16_DS:
10780 case R_PPC64_GOT16_LO_DS:
10781 case R_PPC64_PLT16_LO_DS:
10782 case R_PPC64_SECTOFF_DS:
10783 case R_PPC64_SECTOFF_LO_DS:
10784 case R_PPC64_TOC16_DS:
10785 case R_PPC64_TOC16_LO_DS:
10786 case R_PPC64_PLTGOT16_DS:
10787 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 10788 case R_PPC64_GOT_TPREL16_DS:
10789 case R_PPC64_GOT_TPREL16_LO_DS:
10790 case R_PPC64_GOT_DTPREL16_DS:
10791 case R_PPC64_GOT_DTPREL16_LO_DS:
10792 case R_PPC64_TPREL16_DS:
10793 case R_PPC64_TPREL16_LO_DS:
10794 case R_PPC64_DTPREL16_DS:
10795 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 10796 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
10797 mask = 3;
10798 /* If this reloc is against an lq insn, then the value must be
10799 a multiple of 16. This is somewhat of a hack, but the
10800 "correct" way to do this by defining _DQ forms of all the
10801 _DS relocs bloats all reloc switches in this file. It
10802 doesn't seem to make much sense to use any of these relocs
10803 in data, so testing the insn should be safe. */
494dac0c 10804 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 10805 mask = 15;
10806 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 10807 {
10808 (*_bfd_error_handler)
d003868e
AM		 10809 (_("%B: error: relocation %s not a multiple of %d"),
10810 input_bfd,
4ce794b7 10811 ppc64_elf_howto_table[r_type]->name,
adadcc0c 10812 mask + 1);
65f38f15 10813 bfd_set_error (bfd_error_bad_value);
b34976b6 10814 ret = FALSE;
65f38f15
AM		 10815 continue;
10816 }
10817 break;
5bd4f169
AM		 10818 }
10819
239e1f3a
AM		 10820 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
10821 because such sections are not SEC_ALLOC and thus ld.so will
10822 not process them. */
65f38f15 10823 if (unresolved_reloc
239e1f3a 10824 && !((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 10825 && h->elf.def_dynamic))
9c07fe7c
AM		 10826 {
10827 (*_bfd_error_handler)
d003868e
AM		 10828 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
10829 input_bfd,
10830 input_section,
9c07fe7c 10831 (long) rel->r_offset,
7b609f53 10832 ppc64_elf_howto_table[(int) r_type]->name,
039b3fef 10833 h->elf.root.root.string);
b34976b6 10834 ret = FALSE;
9c07fe7c 10835 }
5bd4f169 10836
65f38f15 10837 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 10838 input_bfd,
10839 input_section,
10840 contents,
411e1bfb 10841 rel->r_offset,
5bd4f169
AM		 10842 relocation,
10843 addend);
10844
ef60b7ff 10845 if (r != bfd_reloc_ok)
5bd4f169 10846 {
cd27b276
AM		 10847 if (sym_name == NULL)
10848 sym_name = "(null)";
10849 if (r == bfd_reloc_overflow)
5bd4f169 10850 {
cd27b276
AM		 10851 if (warned)
10852 continue;
10853 if (h != NULL
039b3fef 10854 && h->elf.root.type == bfd_link_hash_undefweak
4ce794b7 10855 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 10856 {
10857 /* Assume this is a call protected by other code that
10858 detects the symbol is undefined. If this is the case,
10859 we can safely ignore the overflow. If not, the
10860 program is hosed anyway, and a little warning isn't
10861 going to help. */
10862
10863 continue;
10864 }
10865
ef60b7ff 10866 if (!((*info->callbacks->reloc_overflow)
dfeffb9f
L		 10867 (info, (h ? &h->elf.root : NULL), sym_name,
10868 ppc64_elf_howto_table[r_type]->name,
411e1bfb 10869 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 10870 return FALSE;
ef60b7ff
AM		 10871 }
10872 else
10873 {
10874 (*_bfd_error_handler)
d003868e
AM		 10875 (_("%B(%A+0x%lx): %s reloc against `%s': error %d"),
10876 input_bfd,
10877 input_section,
7b609f53 10878 (long) rel->r_offset,
4ce794b7 10879 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 10880 sym_name,
10881 (int) r);
b34976b6 10882 ret = FALSE;
ef60b7ff 10883 }
5bd4f169 10884 }
5bd4f169
AM		 10885 }
10886
645ea6a9
AM		 10887 /* If we're emitting relocations, then shortly after this function
10888 returns, reloc offsets and addends for this section will be
10889 adjusted. Worse, reloc symbol indices will be for the output
8860955f
AM		 10890 file rather than the input. Save a copy of the relocs for
10891 opd_entry_value. */
10892 if (is_opd && info->emitrelocations)
10893 {
10894 bfd_size_type amt;
10895 amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
10896 rel = bfd_alloc (input_bfd, amt);
10897 BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
10898 ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
10899 if (rel == NULL)
10900 return FALSE;
10901 memcpy (rel, relocs, amt);
10902 }
5bd4f169
AM		 10903 return ret;
10904}
10905
754021d0
AM		 10906/* Adjust the value of any local symbols in opd sections. */
10907
10908static bfd_boolean
10909ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
10910 const char *name ATTRIBUTE_UNUSED,
10911 Elf_Internal_Sym *elfsym,
10912 asection *input_sec,
10913 struct elf_link_hash_entry *h)
10914{
4025353c 10915 long *opd_adjust, adjust;
754021d0
AM		 10916 bfd_vma value;
10917
4025353c
AM		 10918 if (h != NULL)
10919 return TRUE;
10920
10921 opd_adjust = get_opd_info (input_sec);
10922 if (opd_adjust == NULL)
754021d0
AM		 10923 return TRUE;
10924
10925 value = elfsym->st_value - input_sec->output_offset;
10926 if (!info->relocatable)
10927 value -= input_sec->output_section->vma;
10928
3f764659 10929 adjust = opd_adjust[value / 8];
4025353c
AM		 10930 if (adjust == -1)
10931 elfsym->st_value = 0;
10932 else
10933 elfsym->st_value += adjust;
754021d0
AM		 10934 return TRUE;
10935}
10936
5bd4f169
AM		 10937/* Finish up dynamic symbol handling. We set the contents of various
10938 dynamic sections here. */
10939
b34976b6 10940static bfd_boolean
4ce794b7
AM		 10941ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
10942 struct bfd_link_info *info,
10943 struct elf_link_hash_entry *h,
10944 Elf_Internal_Sym *sym)
5bd4f169 10945{
65f38f15 10946 struct ppc_link_hash_table *htab;
5bd4f169 10947 bfd *dynobj;
8387904d
AM		 10948 struct plt_entry *ent;
10949 Elf_Internal_Rela rela;
10950 bfd_byte *loc;
5bd4f169 10951
65f38f15
AM		 10952 htab = ppc_hash_table (info);
10953 dynobj = htab->elf.dynobj;
5bd4f169 10954
8387904d
AM		 10955 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
10956 if (ent->plt.offset != (bfd_vma) -1)
10957 {
10958 /* This symbol has an entry in the procedure linkage
10959 table. Set it up. */
10960
10961 if (htab->plt == NULL
10962 || htab->relplt == NULL
10963 || htab->glink == NULL)
10964 abort ();
10965
10966 /* Create a JMP_SLOT reloc to inform the dynamic linker to
10967 fill in the PLT entry. */
10968 rela.r_offset = (htab->plt->output_section->vma
10969 + htab->plt->output_offset
10970 + ent->plt.offset);
10971 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
10972 rela.r_addend = ent->addend;
10973
10974 loc = htab->relplt->contents;
10975 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
10976 * sizeof (Elf64_External_Rela));
10977 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
10978 }
5bd4f169 10979
f5385ebf 10980 if (h->needs_copy)
5bd4f169 10981 {
5bd4f169 10982 Elf_Internal_Rela rela;
947216bf 10983 bfd_byte *loc;
5bd4f169 10984
65f38f15 10985 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 10986
65f38f15
AM		 10987 if (h->dynindx == -1
10988 || (h->root.type != bfd_link_hash_defined
10989 && h->root.type != bfd_link_hash_defweak)
4ce794b7 10990 || htab->relbss == NULL)
65f38f15 10991 abort ();
5bd4f169
AM		 10992
10993 rela.r_offset = (h->root.u.def.value
10994 + h->root.u.def.section->output_section->vma
10995 + h->root.u.def.section->output_offset);
10996 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
10997 rela.r_addend = 0;
4ce794b7
AM		 10998 loc = htab->relbss->contents;
10999 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 11000 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 11001 }
11002
5bd4f169
AM		 11003 /* Mark some specially defined symbols as absolute. */
11004 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
11005 sym->st_shndx = SHN_ABS;
11006
b34976b6 11007 return TRUE;
5bd4f169
AM		 11008}
11009
65f38f15
AM		 11010/* Used to decide how to sort relocs in an optimal manner for the
11011 dynamic linker, before writing them out. */
11012
11013static enum elf_reloc_type_class
4ce794b7 11014ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 11015{
04c9666a 11016 enum elf_ppc64_reloc_type r_type;
a33d1f77 11017
4ce794b7 11018 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 11019 switch (r_type)
65f38f15
AM		 11020 {
11021 case R_PPC64_RELATIVE:
11022 return reloc_class_relative;
11023 case R_PPC64_JMP_SLOT:
11024 return reloc_class_plt;
11025 case R_PPC64_COPY:
11026 return reloc_class_copy;
11027 default:
11028 return reloc_class_normal;
11029 }
11030}
11031
5bd4f169
AM		 11032/* Finish up the dynamic sections. */
11033
b34976b6 11034static bfd_boolean
4ce794b7
AM		 11035ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
11036 struct bfd_link_info *info)
5bd4f169 11037{
65f38f15
AM		 11038 struct ppc_link_hash_table *htab;
11039 bfd *dynobj;
5bd4f169 11040 asection *sdyn;
5bd4f169 11041
65f38f15
AM		 11042 htab = ppc_hash_table (info);
11043 dynobj = htab->elf.dynobj;
5bd4f169
AM		 11044 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
11045
65f38f15 11046 if (htab->elf.dynamic_sections_created)
5bd4f169 11047 {
5bd4f169
AM		 11048 Elf64_External_Dyn *dyncon, *dynconend;
11049
4ce794b7 11050 if (sdyn == NULL || htab->got == NULL)
65f38f15 11051 abort ();
5bd4f169
AM		 11052
11053 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 11054 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM		 11055 for (; dyncon < dynconend; dyncon++)
11056 {
11057 Elf_Internal_Dyn dyn;
19397422 11058 asection *s;
5bd4f169
AM		 11059
11060 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
11061
11062 switch (dyn.d_tag)
11063 {
65f38f15
AM		 11064 default:
11065 continue;
5bd4f169 11066
5d1634d7 11067 case DT_PPC64_GLINK:
4ce794b7 11068 s = htab->glink;
6348e046 11069 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 11070 /* We stupidly defined DT_PPC64_GLINK to be the start
11071 of glink rather than the first entry point, which is
11072 what ld.so needs, and now have a bigger stub to
11073 support automatic multiple TOCs. */
11074 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 11075 break;
11076
19397422
AM		 11077 case DT_PPC64_OPD:
11078 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 11079 if (s == NULL)
11080 continue;
11081 dyn.d_un.d_ptr = s->vma;
19397422
AM		 11082 break;
11083
11084 case DT_PPC64_OPDSZ:
11085 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 11086 if (s == NULL)
11087 continue;
eea6121a 11088 dyn.d_un.d_val = s->size;
19397422
AM		 11089 break;
11090
65f38f15 11091 case DT_PLTGOT:
4ce794b7 11092 s = htab->plt;
6348e046 11093 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 11094 break;
11095
11096 case DT_JMPREL:
4ce794b7 11097 s = htab->relplt;
6348e046 11098 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 11099 break;
5bd4f169 11100
65f38f15 11101 case DT_PLTRELSZ:
eea6121a 11102 dyn.d_un.d_val = htab->relplt->size;
5d1634d7
AM		 11103 break;
11104
11105 case DT_RELASZ:
11106 /* Don't count procedure linkage table relocs in the
11107 overall reloc count. */
4ce794b7 11108 s = htab->relplt;
6348e046
AM		 11109 if (s == NULL)
11110 continue;
eea6121a 11111 dyn.d_un.d_val -= s->size;
6348e046
AM		 11112 break;
11113
11114 case DT_RELA:
11115 /* We may not be using the standard ELF linker script.
11116 If .rela.plt is the first .rela section, we adjust
11117 DT_RELA to not include it. */
4ce794b7 11118 s = htab->relplt;
6348e046
AM		 11119 if (s == NULL)
11120 continue;
11121 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
11122 continue;
eea6121a 11123 dyn.d_un.d_ptr += s->size;
65f38f15 11124 break;
5bd4f169 11125 }
5bd4f169 11126
65f38f15 11127 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 11128 }
5bd4f169
AM		 11129 }
11130
eea6121a 11131 if (htab->got != NULL && htab->got->size != 0)
5d1634d7
AM		 11132 {
11133 /* Fill in the first entry in the global offset table.
11134 We use it to hold the link-time TOCbase. */
11135 bfd_put_64 (output_bfd,
60ee0d4a 11136 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 11137 htab->got->contents);
5d1634d7
AM		 11138
11139 /* Set .got entry size. */
4ce794b7 11140 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 11141 }
11142
eea6121a 11143 if (htab->plt != NULL && htab->plt->size != 0)
5d1634d7
AM		 11144 {
11145 /* Set .plt entry size. */
4ce794b7 11146 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 11147 = PLT_ENTRY_SIZE;
11148 }
11149
e717da7e 11150 /* We need to handle writing out multiple GOT sections ourselves,
7b53ace3
AM		 11151 since we didn't add them to DYNOBJ. We know dynobj is the first
11152 bfd. */
e717da7e
AM		 11153 while ((dynobj = dynobj->link_next) != NULL)
11154 {
11155 asection *s;
7b53ace3 11156
ee75fd95 11157 if (!is_ppc64_elf_target (dynobj->xvec))
7b53ace3
AM		 11158 continue;
11159
e717da7e
AM		 11160 s = ppc64_elf_tdata (dynobj)->got;
11161 if (s != NULL
eea6121a 11162 && s->size != 0
e717da7e
AM		 11163 && s->output_section != bfd_abs_section_ptr
11164 && !bfd_set_section_contents (output_bfd, s->output_section,
11165 s->contents, s->output_offset,
eea6121a 11166 s->size))
e717da7e
AM		 11167 return FALSE;
11168 s = ppc64_elf_tdata (dynobj)->relgot;
11169 if (s != NULL
eea6121a 11170 && s->size != 0
e717da7e
AM		 11171 && s->output_section != bfd_abs_section_ptr
11172 && !bfd_set_section_contents (output_bfd, s->output_section,
11173 s->contents, s->output_offset,
eea6121a 11174 s->size))
e717da7e
AM		 11175 return FALSE;
11176 }
f6c52c13 11177
b34976b6 11178 return TRUE;
5bd4f169
AM		 11179}
11180
5bd4f169 11181#include "elf64-target.h"
GDB Binutils - Deliverables
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