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2003-08-07 Michal Ludvig <mludvig@suse.cz>
[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
CommitLineData
5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
86bbe32f 2 Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
5bd4f169
AM		 3 Written by Linus Nordberg, Swox AB <info@swox.com>,
4 based on elf32-ppc.c by Ian Lance Taylor.
5
ae9a127f 6 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 7
ae9a127f
NC		 8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
5bd4f169 12
ae9a127f
NC		 13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
5bd4f169 17
4ce794b7
AM		 18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
5bd4f169 21
4ce794b7
AM		 22/* The 64-bit PowerPC ELF ABI may be found at
23 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
24 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
5bd4f169
AM		 25
26#include "bfd.h"
27#include "sysdep.h"
28#include "bfdlink.h"
29#include "libbfd.h"
30#include "elf-bfd.h"
2f89ff8d 31#include "elf/ppc.h"
04c9666a 32#include "elf/ppc64.h"
5d1634d7 33#include "elf64-ppc.h"
5bd4f169 34
805fc799 35static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 36 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 37static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 38 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 39static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 40 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 41static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 42 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 43static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 44 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 45static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 46 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 47static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 48 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 49static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
5bd4f169
AM		 51
52
ad8e1ba5
AM		 53#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
54#define TARGET_LITTLE_NAME "elf64-powerpcle"
55#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
56#define TARGET_BIG_NAME "elf64-powerpc"
57#define ELF_ARCH bfd_arch_powerpc
58#define ELF_MACHINE_CODE EM_PPC64
59#define ELF_MAXPAGESIZE 0x10000
60#define elf_info_to_howto ppc64_elf_info_to_howto
61
62#define elf_backend_want_got_sym 0
63#define elf_backend_want_plt_sym 0
64#define elf_backend_plt_alignment 3
65#define elf_backend_plt_not_loaded 1
66#define elf_backend_got_symbol_offset 0
67#define elf_backend_got_header_size 8
68#define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
69#define elf_backend_can_gc_sections 1
70#define elf_backend_can_refcount 1
71#define elf_backend_rela_normal 1
72
e717da7e 73#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5
AM		 74#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
75#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
76#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
77#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
78#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
79
80#define elf_backend_object_p ppc64_elf_object_p
81#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
82#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
83#define elf_backend_check_relocs ppc64_elf_check_relocs
84#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
85#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
86#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
87#define elf_backend_hide_symbol ppc64_elf_hide_symbol
88#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
89#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
90#define elf_backend_relocate_section ppc64_elf_relocate_section
91#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
92#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
93#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
2f89ff8d 94#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 95
5bd4f169
AM		 96/* The name of the dynamic interpreter. This is put in the .interp
97 section. */
98#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
99
100/* The size in bytes of an entry in the procedure linkage table. */
101#define PLT_ENTRY_SIZE 24
102
103/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 104#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM		 105
106/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 107#define TOC_BASE_OFF 0x8000
108
109/* Offset of tp and dtp pointers from start of TLS block. */
110#define TP_OFFSET 0x7000
111#define DTP_OFFSET 0x8000
5bd4f169 112
ad8e1ba5
AM		 113/* .plt call stub instructions. The normal stub is like this, but
114 sometimes the .plt entry crosses a 64k boundary and we need to
115 insert an addis to adjust r12. */
116#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM		 117#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
118#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
119#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
120#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
121#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
122 /* ld %r11,xxx+16@l(%r12) */
123#define BCTR 0x4e800420 /* bctr */
124
5d1634d7 125
ad8e1ba5
AM		 126#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
127#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
128
129#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
130
131/* glink call stub instructions. We enter with the index in R0, and the
132 address of glink entry in CTR. From that, we can calculate PLT0. */
133#define GLINK_CALL_STUB_SIZE (16*4)
134#define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
135#define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
136#define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
137#define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
138#define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
139#define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
140#define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
141 /* sub %r12,%r12,%r11 */
142#define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
143#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
144 /* ld %r11,xxx@l(%r12) */
145#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
146 /* ld %r2,8(%r12) */
147 /* mtctr %r11 */
148 /* ld %r11,16(%r12) */
149 /* bctr */
5d1634d7
AM		 150
151/* Pad with this. */
152#define NOP 0x60000000
153
721956f4
AM		 154/* Some other nops. */
155#define CROR_151515 0x4def7b82
156#define CROR_313131 0x4ffffb82
157
cedb70c5 158/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 159#define LI_R0_0 0x38000000 /* li %r0,0 */
160#define B_DOT 0x48000000 /* b . */
161
162/* After that, we need two instructions to load the index, followed by
163 a branch. */
164#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 165#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 166
82bd7b59
AM		 167/* Instructions to save and restore floating point regs. */
168#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
169#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
170#define BLR 0x4e800020 /* blr */
171
41bd81ab
AM		 172/* Since .opd is an array of descriptors and each entry will end up
173 with identical R_PPC64_RELATIVE relocs, there is really no need to
174 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 175 relocate .opd without reloc entries. */
41bd81ab
AM		 176#ifndef NO_OPD_RELOCS
177#define NO_OPD_RELOCS 0
178#endif
5bd4f169 179\f
f5e87a1d 180#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 181
5bd4f169 182/* Relocation HOWTO's. */
04c9666a 183static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 184
185static reloc_howto_type ppc64_elf_howto_raw[] = {
186 /* This reloc does nothing. */
187 HOWTO (R_PPC64_NONE, /* type */
188 0, /* rightshift */
411e1bfb
AM		 189 2, /* size (0 = byte, 1 = short, 2 = long) */
190 32, /* bitsize */
b34976b6 191 FALSE, /* pc_relative */
5bd4f169 192 0, /* bitpos */
f5e87a1d 193 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 194 bfd_elf_generic_reloc, /* special_function */
195 "R_PPC64_NONE", /* name */
b34976b6 196 FALSE, /* partial_inplace */
d006db6c 197 0, /* src_mask */
5bd4f169 198 0, /* dst_mask */
b34976b6 199 FALSE), /* pcrel_offset */
5bd4f169
AM		 200
201 /* A standard 32 bit relocation. */
202 HOWTO (R_PPC64_ADDR32, /* type */
203 0, /* rightshift */
204 2, /* size (0 = byte, 1 = short, 2 = long) */
205 32, /* bitsize */
b34976b6 206 FALSE, /* pc_relative */
5bd4f169
AM		 207 0, /* bitpos */
208 complain_overflow_bitfield, /* complain_on_overflow */
209 bfd_elf_generic_reloc, /* special_function */
210 "R_PPC64_ADDR32", /* name */
b34976b6 211 FALSE, /* partial_inplace */
5bd4f169
AM		 212 0, /* src_mask */
213 0xffffffff, /* dst_mask */
b34976b6 214 FALSE), /* pcrel_offset */
5bd4f169
AM		 215
216 /* An absolute 26 bit branch; the lower two bits must be zero.
217 FIXME: we don't check that, we just clear them. */
218 HOWTO (R_PPC64_ADDR24, /* type */
219 0, /* rightshift */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
221 26, /* bitsize */
b34976b6 222 FALSE, /* pc_relative */
5bd4f169
AM		 223 0, /* bitpos */
224 complain_overflow_bitfield, /* complain_on_overflow */
225 bfd_elf_generic_reloc, /* special_function */
226 "R_PPC64_ADDR24", /* name */
b34976b6 227 FALSE, /* partial_inplace */
d006db6c 228 0, /* src_mask */
f5e87a1d 229 0x03fffffc, /* dst_mask */
b34976b6 230 FALSE), /* pcrel_offset */
5bd4f169
AM		 231
232 /* A standard 16 bit relocation. */
233 HOWTO (R_PPC64_ADDR16, /* type */
234 0, /* rightshift */
235 1, /* size (0 = byte, 1 = short, 2 = long) */
236 16, /* bitsize */
b34976b6 237 FALSE, /* pc_relative */
5bd4f169
AM		 238 0, /* bitpos */
239 complain_overflow_bitfield, /* complain_on_overflow */
240 bfd_elf_generic_reloc, /* special_function */
241 "R_PPC64_ADDR16", /* name */
b34976b6 242 FALSE, /* partial_inplace */
5bd4f169
AM		 243 0, /* src_mask */
244 0xffff, /* dst_mask */
b34976b6 245 FALSE), /* pcrel_offset */
5bd4f169
AM		 246
247 /* A 16 bit relocation without overflow. */
248 HOWTO (R_PPC64_ADDR16_LO, /* type */
249 0, /* rightshift */
250 1, /* size (0 = byte, 1 = short, 2 = long) */
251 16, /* bitsize */
b34976b6 252 FALSE, /* pc_relative */
5bd4f169
AM		 253 0, /* bitpos */
254 complain_overflow_dont,/* complain_on_overflow */
255 bfd_elf_generic_reloc, /* special_function */
256 "R_PPC64_ADDR16_LO", /* name */
b34976b6 257 FALSE, /* partial_inplace */
5bd4f169
AM		 258 0, /* src_mask */
259 0xffff, /* dst_mask */
b34976b6 260 FALSE), /* pcrel_offset */
5bd4f169
AM		 261
262 /* Bits 16-31 of an address. */
263 HOWTO (R_PPC64_ADDR16_HI, /* type */
264 16, /* rightshift */
265 1, /* size (0 = byte, 1 = short, 2 = long) */
266 16, /* bitsize */
b34976b6 267 FALSE, /* pc_relative */
5bd4f169
AM		 268 0, /* bitpos */
269 complain_overflow_dont, /* complain_on_overflow */
270 bfd_elf_generic_reloc, /* special_function */
271 "R_PPC64_ADDR16_HI", /* name */
b34976b6 272 FALSE, /* partial_inplace */
5bd4f169
AM		 273 0, /* src_mask */
274 0xffff, /* dst_mask */
b34976b6 275 FALSE), /* pcrel_offset */
5bd4f169
AM		 276
277 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
278 bits, treated as a signed number, is negative. */
279 HOWTO (R_PPC64_ADDR16_HA, /* type */
280 16, /* rightshift */
281 1, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
b34976b6 283 FALSE, /* pc_relative */
5bd4f169
AM		 284 0, /* bitpos */
285 complain_overflow_dont, /* complain_on_overflow */
805fc799 286 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 287 "R_PPC64_ADDR16_HA", /* name */
b34976b6 288 FALSE, /* partial_inplace */
5bd4f169
AM		 289 0, /* src_mask */
290 0xffff, /* dst_mask */
b34976b6 291 FALSE), /* pcrel_offset */
5bd4f169
AM		 292
293 /* An absolute 16 bit branch; the lower two bits must be zero.
294 FIXME: we don't check that, we just clear them. */
295 HOWTO (R_PPC64_ADDR14, /* type */
296 0, /* rightshift */
297 2, /* size (0 = byte, 1 = short, 2 = long) */
298 16, /* bitsize */
b34976b6 299 FALSE, /* pc_relative */
5bd4f169
AM		 300 0, /* bitpos */
301 complain_overflow_bitfield, /* complain_on_overflow */
302 bfd_elf_generic_reloc, /* special_function */
303 "R_PPC64_ADDR14", /* name */
b34976b6 304 FALSE, /* partial_inplace */
d006db6c 305 0, /* src_mask */
f5e87a1d 306 0x0000fffc, /* dst_mask */
b34976b6 307 FALSE), /* pcrel_offset */
5bd4f169
AM		 308
309 /* An absolute 16 bit branch, for which bit 10 should be set to
310 indicate that the branch is expected to be taken. The lower two
311 bits must be zero. */
312 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
313 0, /* rightshift */
314 2, /* size (0 = byte, 1 = short, 2 = long) */
315 16, /* bitsize */
b34976b6 316 FALSE, /* pc_relative */
5bd4f169
AM		 317 0, /* bitpos */
318 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 319 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 320 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 321 FALSE, /* partial_inplace */
d006db6c 322 0, /* src_mask */
f5e87a1d 323 0x0000fffc, /* dst_mask */
b34976b6 324 FALSE), /* pcrel_offset */
5bd4f169
AM		 325
326 /* An absolute 16 bit branch, for which bit 10 should be set to
327 indicate that the branch is not expected to be taken. The lower
328 two bits must be zero. */
329 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
330 0, /* rightshift */
331 2, /* size (0 = byte, 1 = short, 2 = long) */
332 16, /* bitsize */
b34976b6 333 FALSE, /* pc_relative */
5bd4f169
AM		 334 0, /* bitpos */
335 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 336 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 337 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 338 FALSE, /* partial_inplace */
d006db6c 339 0, /* src_mask */
f5e87a1d 340 0x0000fffc, /* dst_mask */
b34976b6 341 FALSE), /* pcrel_offset */
5bd4f169
AM		 342
343 /* A relative 26 bit branch; the lower two bits must be zero. */
344 HOWTO (R_PPC64_REL24, /* type */
345 0, /* rightshift */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
347 26, /* bitsize */
b34976b6 348 TRUE, /* pc_relative */
5bd4f169
AM		 349 0, /* bitpos */
350 complain_overflow_signed, /* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_PPC64_REL24", /* name */
b34976b6 353 FALSE, /* partial_inplace */
d006db6c 354 0, /* src_mask */
f5e87a1d 355 0x03fffffc, /* dst_mask */
b34976b6 356 TRUE), /* pcrel_offset */
5bd4f169
AM		 357
358 /* A relative 16 bit branch; the lower two bits must be zero. */
359 HOWTO (R_PPC64_REL14, /* type */
360 0, /* rightshift */
361 2, /* size (0 = byte, 1 = short, 2 = long) */
362 16, /* bitsize */
b34976b6 363 TRUE, /* pc_relative */
5bd4f169
AM		 364 0, /* bitpos */
365 complain_overflow_signed, /* complain_on_overflow */
366 bfd_elf_generic_reloc, /* special_function */
367 "R_PPC64_REL14", /* name */
b34976b6 368 FALSE, /* partial_inplace */
d006db6c 369 0, /* src_mask */
f5e87a1d 370 0x0000fffc, /* dst_mask */
b34976b6 371 TRUE), /* pcrel_offset */
5bd4f169
AM		 372
373 /* A relative 16 bit branch. Bit 10 should be set to indicate that
374 the branch is expected to be taken. The lower two bits must be
375 zero. */
376 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
377 0, /* rightshift */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
379 16, /* bitsize */
b34976b6 380 TRUE, /* pc_relative */
5bd4f169
AM		 381 0, /* bitpos */
382 complain_overflow_signed, /* complain_on_overflow */
805fc799 383 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 384 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 385 FALSE, /* partial_inplace */
d006db6c 386 0, /* src_mask */
f5e87a1d 387 0x0000fffc, /* dst_mask */
b34976b6 388 TRUE), /* pcrel_offset */
5bd4f169
AM		 389
390 /* A relative 16 bit branch. Bit 10 should be set to indicate that
391 the branch is not expected to be taken. The lower two bits must
392 be zero. */
393 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
394 0, /* rightshift */
395 2, /* size (0 = byte, 1 = short, 2 = long) */
396 16, /* bitsize */
b34976b6 397 TRUE, /* pc_relative */
5bd4f169
AM		 398 0, /* bitpos */
399 complain_overflow_signed, /* complain_on_overflow */
805fc799 400 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 401 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 402 FALSE, /* partial_inplace */
d006db6c 403 0, /* src_mask */
f5e87a1d 404 0x0000fffc, /* dst_mask */
b34976b6 405 TRUE), /* pcrel_offset */
5bd4f169
AM		 406
407 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
408 symbol. */
409 HOWTO (R_PPC64_GOT16, /* type */
410 0, /* rightshift */
411 1, /* size (0 = byte, 1 = short, 2 = long) */
412 16, /* bitsize */
b34976b6 413 FALSE, /* pc_relative */
5bd4f169
AM		 414 0, /* bitpos */
415 complain_overflow_signed, /* complain_on_overflow */
805fc799 416 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 417 "R_PPC64_GOT16", /* name */
b34976b6 418 FALSE, /* partial_inplace */
5bd4f169
AM		 419 0, /* src_mask */
420 0xffff, /* dst_mask */
b34976b6 421 FALSE), /* pcrel_offset */
5bd4f169
AM		 422
423 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
424 the symbol. */
425 HOWTO (R_PPC64_GOT16_LO, /* type */
426 0, /* rightshift */
427 1, /* size (0 = byte, 1 = short, 2 = long) */
428 16, /* bitsize */
b34976b6 429 FALSE, /* pc_relative */
5bd4f169
AM		 430 0, /* bitpos */
431 complain_overflow_dont, /* complain_on_overflow */
805fc799 432 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 433 "R_PPC64_GOT16_LO", /* name */
b34976b6 434 FALSE, /* partial_inplace */
5bd4f169
AM		 435 0, /* src_mask */
436 0xffff, /* dst_mask */
b34976b6 437 FALSE), /* pcrel_offset */
5bd4f169
AM		 438
439 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
440 the symbol. */
441 HOWTO (R_PPC64_GOT16_HI, /* type */
442 16, /* rightshift */
443 1, /* size (0 = byte, 1 = short, 2 = long) */
444 16, /* bitsize */
b34976b6 445 FALSE, /* pc_relative */
5bd4f169
AM		 446 0, /* bitpos */
447 complain_overflow_dont,/* complain_on_overflow */
805fc799 448 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 449 "R_PPC64_GOT16_HI", /* name */
b34976b6 450 FALSE, /* partial_inplace */
5bd4f169
AM		 451 0, /* src_mask */
452 0xffff, /* dst_mask */
b34976b6 453 FALSE), /* pcrel_offset */
5bd4f169
AM		 454
455 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
456 the symbol. */
457 HOWTO (R_PPC64_GOT16_HA, /* type */
458 16, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
b34976b6 461 FALSE, /* pc_relative */
5bd4f169
AM		 462 0, /* bitpos */
463 complain_overflow_dont,/* complain_on_overflow */
805fc799 464 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 465 "R_PPC64_GOT16_HA", /* name */
b34976b6 466 FALSE, /* partial_inplace */
5bd4f169
AM		 467 0, /* src_mask */
468 0xffff, /* dst_mask */
b34976b6 469 FALSE), /* pcrel_offset */
5bd4f169
AM		 470
471 /* This is used only by the dynamic linker. The symbol should exist
472 both in the object being run and in some shared library. The
473 dynamic linker copies the data addressed by the symbol from the
474 shared library into the object, because the object being
475 run has to have the data at some particular address. */
476 HOWTO (R_PPC64_COPY, /* type */
477 0, /* rightshift */
f5e87a1d
AM		 478 0, /* this one is variable size */
479 0, /* bitsize */
b34976b6 480 FALSE, /* pc_relative */
5bd4f169 481 0, /* bitpos */
f5e87a1d
AM		 482 complain_overflow_dont, /* complain_on_overflow */
483 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 484 "R_PPC64_COPY", /* name */
b34976b6 485 FALSE, /* partial_inplace */
5bd4f169
AM		 486 0, /* src_mask */
487 0, /* dst_mask */
b34976b6 488 FALSE), /* pcrel_offset */
5bd4f169
AM		 489
490 /* Like R_PPC64_ADDR64, but used when setting global offset table
491 entries. */
492 HOWTO (R_PPC64_GLOB_DAT, /* type */
493 0, /* rightshift */
494 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
495 64, /* bitsize */
b34976b6 496 FALSE, /* pc_relative */
5bd4f169
AM		 497 0, /* bitpos */
498 complain_overflow_dont, /* complain_on_overflow */
805fc799 499 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 500 "R_PPC64_GLOB_DAT", /* name */
b34976b6 501 FALSE, /* partial_inplace */
5bd4f169 502 0, /* src_mask */
f5e87a1d 503 ONES (64), /* dst_mask */
b34976b6 504 FALSE), /* pcrel_offset */
5bd4f169
AM		 505
506 /* Created by the link editor. Marks a procedure linkage table
507 entry for a symbol. */
508 HOWTO (R_PPC64_JMP_SLOT, /* type */
509 0, /* rightshift */
510 0, /* size (0 = byte, 1 = short, 2 = long) */
511 0, /* bitsize */
b34976b6 512 FALSE, /* pc_relative */
5bd4f169
AM		 513 0, /* bitpos */
514 complain_overflow_dont, /* complain_on_overflow */
805fc799 515 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 516 "R_PPC64_JMP_SLOT", /* name */
b34976b6 517 FALSE, /* partial_inplace */
5bd4f169
AM		 518 0, /* src_mask */
519 0, /* dst_mask */
b34976b6 520 FALSE), /* pcrel_offset */
5bd4f169
AM		 521
522 /* Used only by the dynamic linker. When the object is run, this
523 doubleword64 is set to the load address of the object, plus the
524 addend. */
525 HOWTO (R_PPC64_RELATIVE, /* type */
526 0, /* rightshift */
527 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
528 64, /* bitsize */
b34976b6 529 FALSE, /* pc_relative */
5bd4f169
AM		 530 0, /* bitpos */
531 complain_overflow_dont, /* complain_on_overflow */
532 bfd_elf_generic_reloc, /* special_function */
533 "R_PPC64_RELATIVE", /* name */
b34976b6 534 FALSE, /* partial_inplace */
5bd4f169 535 0, /* src_mask */
f5e87a1d 536 ONES (64), /* dst_mask */
b34976b6 537 FALSE), /* pcrel_offset */
5bd4f169
AM		 538
539 /* Like R_PPC64_ADDR32, but may be unaligned. */
540 HOWTO (R_PPC64_UADDR32, /* type */
541 0, /* rightshift */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
543 32, /* bitsize */
b34976b6 544 FALSE, /* pc_relative */
5bd4f169
AM		 545 0, /* bitpos */
546 complain_overflow_bitfield, /* complain_on_overflow */
547 bfd_elf_generic_reloc, /* special_function */
548 "R_PPC64_UADDR32", /* name */
b34976b6 549 FALSE, /* partial_inplace */
5bd4f169
AM		 550 0, /* src_mask */
551 0xffffffff, /* dst_mask */
b34976b6 552 FALSE), /* pcrel_offset */
5bd4f169
AM		 553
554 /* Like R_PPC64_ADDR16, but may be unaligned. */
555 HOWTO (R_PPC64_UADDR16, /* type */
556 0, /* rightshift */
557 1, /* size (0 = byte, 1 = short, 2 = long) */
558 16, /* bitsize */
b34976b6 559 FALSE, /* pc_relative */
5bd4f169
AM		 560 0, /* bitpos */
561 complain_overflow_bitfield, /* complain_on_overflow */
562 bfd_elf_generic_reloc, /* special_function */
563 "R_PPC64_UADDR16", /* name */
b34976b6 564 FALSE, /* partial_inplace */
5bd4f169
AM		 565 0, /* src_mask */
566 0xffff, /* dst_mask */
b34976b6 567 FALSE), /* pcrel_offset */
5bd4f169
AM		 568
569 /* 32-bit PC relative. */
570 HOWTO (R_PPC64_REL32, /* type */
571 0, /* rightshift */
572 2, /* size (0 = byte, 1 = short, 2 = long) */
573 32, /* bitsize */
b34976b6 574 TRUE, /* pc_relative */
5bd4f169 575 0, /* bitpos */
cedb70c5 576 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM		 577 complain_overflow_signed, /* complain_on_overflow */
578 bfd_elf_generic_reloc, /* special_function */
579 "R_PPC64_REL32", /* name */
b34976b6 580 FALSE, /* partial_inplace */
5bd4f169
AM		 581 0, /* src_mask */
582 0xffffffff, /* dst_mask */
b34976b6 583 TRUE), /* pcrel_offset */
5bd4f169 584
10ed1bba 585 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 586 HOWTO (R_PPC64_PLT32, /* type */
587 0, /* rightshift */
588 2, /* size (0 = byte, 1 = short, 2 = long) */
589 32, /* bitsize */
b34976b6 590 FALSE, /* pc_relative */
5bd4f169
AM		 591 0, /* bitpos */
592 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 593 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 594 "R_PPC64_PLT32", /* name */
b34976b6 595 FALSE, /* partial_inplace */
5bd4f169 596 0, /* src_mask */
f5e87a1d 597 0xffffffff, /* dst_mask */
b34976b6 598 FALSE), /* pcrel_offset */
5bd4f169
AM		 599
600 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
601 FIXME: R_PPC64_PLTREL32 not supported. */
602 HOWTO (R_PPC64_PLTREL32, /* type */
603 0, /* rightshift */
604 2, /* size (0 = byte, 1 = short, 2 = long) */
605 32, /* bitsize */
b34976b6 606 TRUE, /* pc_relative */
5bd4f169
AM		 607 0, /* bitpos */
608 complain_overflow_signed, /* complain_on_overflow */
609 bfd_elf_generic_reloc, /* special_function */
610 "R_PPC64_PLTREL32", /* name */
b34976b6 611 FALSE, /* partial_inplace */
5bd4f169 612 0, /* src_mask */
f5e87a1d 613 0xffffffff, /* dst_mask */
b34976b6 614 TRUE), /* pcrel_offset */
5bd4f169
AM		 615
616 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
617 the symbol. */
618 HOWTO (R_PPC64_PLT16_LO, /* type */
619 0, /* rightshift */
620 1, /* size (0 = byte, 1 = short, 2 = long) */
621 16, /* bitsize */
b34976b6 622 FALSE, /* pc_relative */
5bd4f169
AM		 623 0, /* bitpos */
624 complain_overflow_dont, /* complain_on_overflow */
805fc799 625 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 626 "R_PPC64_PLT16_LO", /* name */
b34976b6 627 FALSE, /* partial_inplace */
5bd4f169
AM		 628 0, /* src_mask */
629 0xffff, /* dst_mask */
b34976b6 630 FALSE), /* pcrel_offset */
5bd4f169
AM		 631
632 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
633 the symbol. */
634 HOWTO (R_PPC64_PLT16_HI, /* type */
635 16, /* rightshift */
636 1, /* size (0 = byte, 1 = short, 2 = long) */
637 16, /* bitsize */
b34976b6 638 FALSE, /* pc_relative */
5bd4f169
AM		 639 0, /* bitpos */
640 complain_overflow_dont, /* complain_on_overflow */
805fc799 641 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 642 "R_PPC64_PLT16_HI", /* name */
b34976b6 643 FALSE, /* partial_inplace */
5bd4f169
AM		 644 0, /* src_mask */
645 0xffff, /* dst_mask */
b34976b6 646 FALSE), /* pcrel_offset */
5bd4f169
AM		 647
648 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
649 the symbol. */
650 HOWTO (R_PPC64_PLT16_HA, /* type */
651 16, /* rightshift */
652 1, /* size (0 = byte, 1 = short, 2 = long) */
653 16, /* bitsize */
b34976b6 654 FALSE, /* pc_relative */
5bd4f169
AM		 655 0, /* bitpos */
656 complain_overflow_dont, /* complain_on_overflow */
805fc799 657 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 658 "R_PPC64_PLT16_HA", /* name */
b34976b6 659 FALSE, /* partial_inplace */
5bd4f169
AM		 660 0, /* src_mask */
661 0xffff, /* dst_mask */
b34976b6 662 FALSE), /* pcrel_offset */
5bd4f169 663
c061c2d8 664 /* 16-bit section relative relocation. */
5bd4f169
AM		 665 HOWTO (R_PPC64_SECTOFF, /* type */
666 0, /* rightshift */
c061c2d8
AM		 667 1, /* size (0 = byte, 1 = short, 2 = long) */
668 16, /* bitsize */
b34976b6 669 FALSE, /* pc_relative */
5bd4f169
AM		 670 0, /* bitpos */
671 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 672 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 673 "R_PPC64_SECTOFF", /* name */
b34976b6 674 FALSE, /* partial_inplace */
5bd4f169 675 0, /* src_mask */
c061c2d8 676 0xffff, /* dst_mask */
b34976b6 677 FALSE), /* pcrel_offset */
5bd4f169 678
c061c2d8 679 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 680 HOWTO (R_PPC64_SECTOFF_LO, /* type */
681 0, /* rightshift */
682 1, /* size (0 = byte, 1 = short, 2 = long) */
683 16, /* bitsize */
b34976b6 684 FALSE, /* pc_relative */
5bd4f169
AM		 685 0, /* bitpos */
686 complain_overflow_dont, /* complain_on_overflow */
805fc799 687 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 688 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 689 FALSE, /* partial_inplace */
5bd4f169
AM		 690 0, /* src_mask */
691 0xffff, /* dst_mask */
b34976b6 692 FALSE), /* pcrel_offset */
5bd4f169
AM		 693
694 /* 16-bit upper half section relative relocation. */
695 HOWTO (R_PPC64_SECTOFF_HI, /* type */
696 16, /* rightshift */
697 1, /* size (0 = byte, 1 = short, 2 = long) */
698 16, /* bitsize */
b34976b6 699 FALSE, /* pc_relative */
5bd4f169
AM		 700 0, /* bitpos */
701 complain_overflow_dont, /* complain_on_overflow */
805fc799 702 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 703 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 704 FALSE, /* partial_inplace */
5bd4f169
AM		 705 0, /* src_mask */
706 0xffff, /* dst_mask */
b34976b6 707 FALSE), /* pcrel_offset */
5bd4f169
AM		 708
709 /* 16-bit upper half adjusted section relative relocation. */
710 HOWTO (R_PPC64_SECTOFF_HA, /* type */
711 16, /* rightshift */
712 1, /* size (0 = byte, 1 = short, 2 = long) */
713 16, /* bitsize */
b34976b6 714 FALSE, /* pc_relative */
5bd4f169
AM		 715 0, /* bitpos */
716 complain_overflow_dont, /* complain_on_overflow */
805fc799 717 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 718 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 719 FALSE, /* partial_inplace */
5bd4f169
AM		 720 0, /* src_mask */
721 0xffff, /* dst_mask */
b34976b6 722 FALSE), /* pcrel_offset */
5bd4f169 723
04c9666a
AM		 724 /* Like R_PPC64_REL24 without touching the two least significant bits. */
725 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 726 2, /* rightshift */
727 2, /* size (0 = byte, 1 = short, 2 = long) */
728 30, /* bitsize */
b34976b6 729 TRUE, /* pc_relative */
5bd4f169
AM		 730 0, /* bitpos */
731 complain_overflow_dont, /* complain_on_overflow */
732 bfd_elf_generic_reloc, /* special_function */
04c9666a 733 "R_PPC64_REL30", /* name */
b34976b6 734 FALSE, /* partial_inplace */
d006db6c 735 0, /* src_mask */
5bd4f169 736 0xfffffffc, /* dst_mask */
b34976b6 737 TRUE), /* pcrel_offset */
5bd4f169
AM		 738
739 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
740
741 /* A standard 64-bit relocation. */
742 HOWTO (R_PPC64_ADDR64, /* type */
743 0, /* rightshift */
744 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
745 64, /* bitsize */
b34976b6 746 FALSE, /* pc_relative */
5bd4f169
AM		 747 0, /* bitpos */
748 complain_overflow_dont, /* complain_on_overflow */
749 bfd_elf_generic_reloc, /* special_function */
750 "R_PPC64_ADDR64", /* name */
b34976b6 751 FALSE, /* partial_inplace */
5bd4f169 752 0, /* src_mask */
f5e87a1d 753 ONES (64), /* dst_mask */
b34976b6 754 FALSE), /* pcrel_offset */
5bd4f169
AM		 755
756 /* The bits 32-47 of an address. */
757 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
758 32, /* rightshift */
759 1, /* size (0 = byte, 1 = short, 2 = long) */
760 16, /* bitsize */
b34976b6 761 FALSE, /* pc_relative */
5bd4f169
AM		 762 0, /* bitpos */
763 complain_overflow_dont, /* complain_on_overflow */
764 bfd_elf_generic_reloc, /* special_function */
765 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 766 FALSE, /* partial_inplace */
5bd4f169
AM		 767 0, /* src_mask */
768 0xffff, /* dst_mask */
b34976b6 769 FALSE), /* pcrel_offset */
5bd4f169
AM		 770
771 /* The bits 32-47 of an address, plus 1 if the contents of the low
772 16 bits, treated as a signed number, is negative. */
773 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
774 32, /* rightshift */
775 1, /* size (0 = byte, 1 = short, 2 = long) */
776 16, /* bitsize */
b34976b6 777 FALSE, /* pc_relative */
5bd4f169
AM		 778 0, /* bitpos */
779 complain_overflow_dont, /* complain_on_overflow */
805fc799 780 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 781 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 782 FALSE, /* partial_inplace */
5bd4f169
AM		 783 0, /* src_mask */
784 0xffff, /* dst_mask */
b34976b6 785 FALSE), /* pcrel_offset */
5bd4f169
AM		 786
787 /* The bits 48-63 of an address. */
788 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
789 48, /* rightshift */
790 1, /* size (0 = byte, 1 = short, 2 = long) */
791 16, /* bitsize */
b34976b6 792 FALSE, /* pc_relative */
5bd4f169
AM		 793 0, /* bitpos */
794 complain_overflow_dont, /* complain_on_overflow */
795 bfd_elf_generic_reloc, /* special_function */
796 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 797 FALSE, /* partial_inplace */
5bd4f169
AM		 798 0, /* src_mask */
799 0xffff, /* dst_mask */
b34976b6 800 FALSE), /* pcrel_offset */
5bd4f169
AM		 801
802 /* The bits 48-63 of an address, plus 1 if the contents of the low
803 16 bits, treated as a signed number, is negative. */
804 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
805 48, /* rightshift */
806 1, /* size (0 = byte, 1 = short, 2 = long) */
807 16, /* bitsize */
b34976b6 808 FALSE, /* pc_relative */
5bd4f169
AM		 809 0, /* bitpos */
810 complain_overflow_dont, /* complain_on_overflow */
805fc799 811 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 812 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 813 FALSE, /* partial_inplace */
5bd4f169
AM		 814 0, /* src_mask */
815 0xffff, /* dst_mask */
b34976b6 816 FALSE), /* pcrel_offset */
5bd4f169
AM		 817
818 /* Like ADDR64, but may be unaligned. */
819 HOWTO (R_PPC64_UADDR64, /* type */
820 0, /* rightshift */
821 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
822 64, /* bitsize */
b34976b6 823 FALSE, /* pc_relative */
5bd4f169
AM		 824 0, /* bitpos */
825 complain_overflow_dont, /* complain_on_overflow */
826 bfd_elf_generic_reloc, /* special_function */
827 "R_PPC64_UADDR64", /* name */
b34976b6 828 FALSE, /* partial_inplace */
5bd4f169 829 0, /* src_mask */
f5e87a1d 830 ONES (64), /* dst_mask */
b34976b6 831 FALSE), /* pcrel_offset */
5bd4f169
AM		 832
833 /* 64-bit relative relocation. */
834 HOWTO (R_PPC64_REL64, /* type */
835 0, /* rightshift */
836 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
837 64, /* bitsize */
b34976b6 838 TRUE, /* pc_relative */
5bd4f169
AM		 839 0, /* bitpos */
840 complain_overflow_dont, /* complain_on_overflow */
841 bfd_elf_generic_reloc, /* special_function */
842 "R_PPC64_REL64", /* name */
b34976b6 843 FALSE, /* partial_inplace */
5bd4f169 844 0, /* src_mask */
f5e87a1d 845 ONES (64), /* dst_mask */
b34976b6 846 TRUE), /* pcrel_offset */
5bd4f169 847
cedb70c5 848 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 849 HOWTO (R_PPC64_PLT64, /* type */
850 0, /* rightshift */
851 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
852 64, /* bitsize */
b34976b6 853 FALSE, /* pc_relative */
5bd4f169
AM		 854 0, /* bitpos */
855 complain_overflow_dont, /* complain_on_overflow */
805fc799 856 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 857 "R_PPC64_PLT64", /* name */
b34976b6 858 FALSE, /* partial_inplace */
5bd4f169 859 0, /* src_mask */
f5e87a1d 860 ONES (64), /* dst_mask */
b34976b6 861 FALSE), /* pcrel_offset */
5bd4f169
AM		 862
863 /* 64-bit PC relative relocation to the symbol's procedure linkage
864 table. */
865 /* FIXME: R_PPC64_PLTREL64 not supported. */
866 HOWTO (R_PPC64_PLTREL64, /* type */
867 0, /* rightshift */
868 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
869 64, /* bitsize */
b34976b6 870 TRUE, /* pc_relative */
5bd4f169
AM		 871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
805fc799 873 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 874 "R_PPC64_PLTREL64", /* name */
b34976b6 875 FALSE, /* partial_inplace */
5bd4f169 876 0, /* src_mask */
f5e87a1d 877 ONES (64), /* dst_mask */
b34976b6 878 TRUE), /* pcrel_offset */
5bd4f169
AM		 879
880 /* 16 bit TOC-relative relocation. */
881
882 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
883 HOWTO (R_PPC64_TOC16, /* type */
884 0, /* rightshift */
885 1, /* size (0 = byte, 1 = short, 2 = long) */
886 16, /* bitsize */
b34976b6 887 FALSE, /* pc_relative */
5bd4f169
AM		 888 0, /* bitpos */
889 complain_overflow_signed, /* complain_on_overflow */
805fc799 890 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 891 "R_PPC64_TOC16", /* name */
b34976b6 892 FALSE, /* partial_inplace */
5bd4f169
AM		 893 0, /* src_mask */
894 0xffff, /* dst_mask */
b34976b6 895 FALSE), /* pcrel_offset */
5bd4f169
AM		 896
897 /* 16 bit TOC-relative relocation without overflow. */
898
899 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
900 HOWTO (R_PPC64_TOC16_LO, /* type */
901 0, /* rightshift */
902 1, /* size (0 = byte, 1 = short, 2 = long) */
903 16, /* bitsize */
b34976b6 904 FALSE, /* pc_relative */
5bd4f169
AM		 905 0, /* bitpos */
906 complain_overflow_dont, /* complain_on_overflow */
805fc799 907 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 908 "R_PPC64_TOC16_LO", /* name */
b34976b6 909 FALSE, /* partial_inplace */
5bd4f169
AM		 910 0, /* src_mask */
911 0xffff, /* dst_mask */
b34976b6 912 FALSE), /* pcrel_offset */
5bd4f169
AM		 913
914 /* 16 bit TOC-relative relocation, high 16 bits. */
915
916 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
917 HOWTO (R_PPC64_TOC16_HI, /* type */
918 16, /* rightshift */
919 1, /* size (0 = byte, 1 = short, 2 = long) */
920 16, /* bitsize */
b34976b6 921 FALSE, /* pc_relative */
5bd4f169
AM		 922 0, /* bitpos */
923 complain_overflow_dont, /* complain_on_overflow */
805fc799 924 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 925 "R_PPC64_TOC16_HI", /* name */
b34976b6 926 FALSE, /* partial_inplace */
5bd4f169
AM		 927 0, /* src_mask */
928 0xffff, /* dst_mask */
b34976b6 929 FALSE), /* pcrel_offset */
5bd4f169
AM		 930
931 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
932 contents of the low 16 bits, treated as a signed number, is
933 negative. */
934
935 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
936 HOWTO (R_PPC64_TOC16_HA, /* type */
937 16, /* rightshift */
938 1, /* size (0 = byte, 1 = short, 2 = long) */
939 16, /* bitsize */
b34976b6 940 FALSE, /* pc_relative */
5bd4f169
AM		 941 0, /* bitpos */
942 complain_overflow_dont, /* complain_on_overflow */
805fc799 943 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 944 "R_PPC64_TOC16_HA", /* name */
b34976b6 945 FALSE, /* partial_inplace */
5bd4f169
AM		 946 0, /* src_mask */
947 0xffff, /* dst_mask */
b34976b6 948 FALSE), /* pcrel_offset */
5bd4f169
AM		 949
950 /* 64-bit relocation; insert value of TOC base (.TOC.). */
951
952 /* R_PPC64_TOC 51 doubleword64 .TOC. */
953 HOWTO (R_PPC64_TOC, /* type */
954 0, /* rightshift */
955 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
956 64, /* bitsize */
b34976b6 957 FALSE, /* pc_relative */
5bd4f169
AM		 958 0, /* bitpos */
959 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 960 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 961 "R_PPC64_TOC", /* name */
b34976b6 962 FALSE, /* partial_inplace */
5bd4f169 963 0, /* src_mask */
f5e87a1d 964 ONES (64), /* dst_mask */
b34976b6 965 FALSE), /* pcrel_offset */
5bd4f169
AM		 966
967 /* Like R_PPC64_GOT16, but also informs the link editor that the
968 value to relocate may (!) refer to a PLT entry which the link
969 editor (a) may replace with the symbol value. If the link editor
970 is unable to fully resolve the symbol, it may (b) create a PLT
971 entry and store the address to the new PLT entry in the GOT.
972 This permits lazy resolution of function symbols at run time.
973 The link editor may also skip all of this and just (c) emit a
974 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
975 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
976 HOWTO (R_PPC64_PLTGOT16, /* type */
977 0, /* rightshift */
978 1, /* size (0 = byte, 1 = short, 2 = long) */
979 16, /* bitsize */
b34976b6 980 FALSE, /* pc_relative */
5bd4f169
AM		 981 0, /* bitpos */
982 complain_overflow_signed, /* complain_on_overflow */
805fc799 983 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 984 "R_PPC64_PLTGOT16", /* name */
985 FALSE, /* partial_inplace */
986 0, /* src_mask */
987 0xffff, /* dst_mask */
988 FALSE), /* pcrel_offset */
989
990 /* Like R_PPC64_PLTGOT16, but without overflow. */
991 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
992 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
993 0, /* rightshift */
994 1, /* size (0 = byte, 1 = short, 2 = long) */
995 16, /* bitsize */
996 FALSE, /* pc_relative */
997 0, /* bitpos */
998 complain_overflow_dont, /* complain_on_overflow */
999 ppc64_elf_unhandled_reloc, /* special_function */
1000 "R_PPC64_PLTGOT16_LO", /* name */
1001 FALSE, /* partial_inplace */
1002 0, /* src_mask */
1003 0xffff, /* dst_mask */
1004 FALSE), /* pcrel_offset */
1005
1006 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1007 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1008 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1009 16, /* rightshift */
1010 1, /* size (0 = byte, 1 = short, 2 = long) */
1011 16, /* bitsize */
1012 FALSE, /* pc_relative */
1013 0, /* bitpos */
1014 complain_overflow_dont, /* complain_on_overflow */
1015 ppc64_elf_unhandled_reloc, /* special_function */
1016 "R_PPC64_PLTGOT16_HI", /* name */
1017 FALSE, /* partial_inplace */
1018 0, /* src_mask */
1019 0xffff, /* dst_mask */
1020 FALSE), /* pcrel_offset */
1021
1022 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1023 1 if the contents of the low 16 bits, treated as a signed number,
1024 is negative. */
1025 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1026 HOWTO (R_PPC64_PLTGOT16_HA, /* 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_HA", /* name */
1035 FALSE, /* partial_inplace */
1036 0, /* src_mask */
1037 0xffff, /* dst_mask */
1038 FALSE), /* pcrel_offset */
1039
1040 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1041 HOWTO (R_PPC64_ADDR16_DS, /* type */
1042 0, /* rightshift */
1043 1, /* size (0 = byte, 1 = short, 2 = long) */
1044 16, /* bitsize */
1045 FALSE, /* pc_relative */
1046 0, /* bitpos */
1047 complain_overflow_bitfield, /* complain_on_overflow */
1048 bfd_elf_generic_reloc, /* special_function */
1049 "R_PPC64_ADDR16_DS", /* name */
1050 FALSE, /* partial_inplace */
1051 0, /* src_mask */
1052 0xfffc, /* dst_mask */
1053 FALSE), /* pcrel_offset */
1054
1055 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1056 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1057 0, /* rightshift */
1058 1, /* size (0 = byte, 1 = short, 2 = long) */
1059 16, /* bitsize */
1060 FALSE, /* pc_relative */
1061 0, /* bitpos */
1062 complain_overflow_dont,/* complain_on_overflow */
1063 bfd_elf_generic_reloc, /* special_function */
1064 "R_PPC64_ADDR16_LO_DS",/* name */
1065 FALSE, /* partial_inplace */
1066 0, /* src_mask */
1067 0xfffc, /* dst_mask */
1068 FALSE), /* pcrel_offset */
1069
1070 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1071 HOWTO (R_PPC64_GOT16_DS, /* type */
1072 0, /* rightshift */
1073 1, /* size (0 = byte, 1 = short, 2 = long) */
1074 16, /* bitsize */
1075 FALSE, /* pc_relative */
1076 0, /* bitpos */
1077 complain_overflow_signed, /* complain_on_overflow */
1078 ppc64_elf_unhandled_reloc, /* special_function */
1079 "R_PPC64_GOT16_DS", /* name */
1080 FALSE, /* partial_inplace */
1081 0, /* src_mask */
1082 0xfffc, /* dst_mask */
1083 FALSE), /* pcrel_offset */
1084
1085 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1086 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1087 0, /* rightshift */
1088 1, /* size (0 = byte, 1 = short, 2 = long) */
1089 16, /* bitsize */
1090 FALSE, /* pc_relative */
1091 0, /* bitpos */
1092 complain_overflow_dont, /* complain_on_overflow */
1093 ppc64_elf_unhandled_reloc, /* special_function */
1094 "R_PPC64_GOT16_LO_DS", /* name */
1095 FALSE, /* partial_inplace */
1096 0, /* src_mask */
1097 0xfffc, /* dst_mask */
1098 FALSE), /* pcrel_offset */
1099
1100 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1101 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1102 0, /* rightshift */
1103 1, /* size (0 = byte, 1 = short, 2 = long) */
1104 16, /* bitsize */
1105 FALSE, /* pc_relative */
1106 0, /* bitpos */
1107 complain_overflow_dont, /* complain_on_overflow */
1108 ppc64_elf_unhandled_reloc, /* special_function */
1109 "R_PPC64_PLT16_LO_DS", /* name */
1110 FALSE, /* partial_inplace */
1111 0, /* src_mask */
1112 0xfffc, /* dst_mask */
1113 FALSE), /* pcrel_offset */
1114
1115 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1116 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1117 0, /* rightshift */
1118 1, /* size (0 = byte, 1 = short, 2 = long) */
1119 16, /* bitsize */
1120 FALSE, /* pc_relative */
1121 0, /* bitpos */
1122 complain_overflow_bitfield, /* complain_on_overflow */
1123 ppc64_elf_sectoff_reloc, /* special_function */
1124 "R_PPC64_SECTOFF_DS", /* name */
1125 FALSE, /* partial_inplace */
1126 0, /* src_mask */
1127 0xfffc, /* dst_mask */
1128 FALSE), /* pcrel_offset */
1129
1130 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1131 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1132 0, /* rightshift */
1133 1, /* size (0 = byte, 1 = short, 2 = long) */
1134 16, /* bitsize */
1135 FALSE, /* pc_relative */
1136 0, /* bitpos */
1137 complain_overflow_dont, /* complain_on_overflow */
1138 ppc64_elf_sectoff_reloc, /* special_function */
1139 "R_PPC64_SECTOFF_LO_DS",/* name */
1140 FALSE, /* partial_inplace */
1141 0, /* src_mask */
1142 0xfffc, /* dst_mask */
1143 FALSE), /* pcrel_offset */
1144
1145 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1146 HOWTO (R_PPC64_TOC16_DS, /* type */
1147 0, /* rightshift */
1148 1, /* size (0 = byte, 1 = short, 2 = long) */
1149 16, /* bitsize */
1150 FALSE, /* pc_relative */
1151 0, /* bitpos */
1152 complain_overflow_signed, /* complain_on_overflow */
1153 ppc64_elf_toc_reloc, /* special_function */
1154 "R_PPC64_TOC16_DS", /* name */
1155 FALSE, /* partial_inplace */
1156 0, /* src_mask */
1157 0xfffc, /* dst_mask */
1158 FALSE), /* pcrel_offset */
1159
1160 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1161 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1162 0, /* rightshift */
1163 1, /* size (0 = byte, 1 = short, 2 = long) */
1164 16, /* bitsize */
1165 FALSE, /* pc_relative */
1166 0, /* bitpos */
1167 complain_overflow_dont, /* complain_on_overflow */
1168 ppc64_elf_toc_reloc, /* special_function */
1169 "R_PPC64_TOC16_LO_DS", /* name */
1170 FALSE, /* partial_inplace */
1171 0, /* src_mask */
1172 0xfffc, /* dst_mask */
1173 FALSE), /* pcrel_offset */
1174
1175 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1176 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1177 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1178 0, /* rightshift */
1179 1, /* size (0 = byte, 1 = short, 2 = long) */
1180 16, /* bitsize */
1181 FALSE, /* pc_relative */
1182 0, /* bitpos */
1183 complain_overflow_signed, /* complain_on_overflow */
1184 ppc64_elf_unhandled_reloc, /* special_function */
1185 "R_PPC64_PLTGOT16_DS", /* name */
1186 FALSE, /* partial_inplace */
1187 0, /* src_mask */
1188 0xfffc, /* dst_mask */
1189 FALSE), /* pcrel_offset */
1190
1191 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1192 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1193 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1194 0, /* rightshift */
1195 1, /* size (0 = byte, 1 = short, 2 = long) */
1196 16, /* bitsize */
1197 FALSE, /* pc_relative */
1198 0, /* bitpos */
1199 complain_overflow_dont, /* complain_on_overflow */
1200 ppc64_elf_unhandled_reloc, /* special_function */
1201 "R_PPC64_PLTGOT16_LO_DS",/* name */
1202 FALSE, /* partial_inplace */
1203 0, /* src_mask */
1204 0xfffc, /* dst_mask */
1205 FALSE), /* pcrel_offset */
1206
1207 /* Marker reloc for TLS. */
1208 HOWTO (R_PPC64_TLS,
1209 0, /* rightshift */
1210 2, /* size (0 = byte, 1 = short, 2 = long) */
1211 32, /* bitsize */
1212 FALSE, /* pc_relative */
1213 0, /* bitpos */
1214 complain_overflow_dont, /* complain_on_overflow */
1215 bfd_elf_generic_reloc, /* special_function */
1216 "R_PPC64_TLS", /* name */
1217 FALSE, /* partial_inplace */
1218 0, /* src_mask */
1219 0, /* dst_mask */
1220 FALSE), /* pcrel_offset */
1221
1222 /* Computes the load module index of the load module that contains the
1223 definition of its TLS sym. */
1224 HOWTO (R_PPC64_DTPMOD64,
1225 0, /* rightshift */
1226 4, /* size (0 = byte, 1 = short, 2 = long) */
1227 64, /* bitsize */
1228 FALSE, /* pc_relative */
1229 0, /* bitpos */
1230 complain_overflow_dont, /* complain_on_overflow */
1231 ppc64_elf_unhandled_reloc, /* special_function */
1232 "R_PPC64_DTPMOD64", /* name */
1233 FALSE, /* partial_inplace */
1234 0, /* src_mask */
1235 ONES (64), /* dst_mask */
1236 FALSE), /* pcrel_offset */
1237
1238 /* Computes a dtv-relative displacement, the difference between the value
1239 of sym+add and the base address of the thread-local storage block that
1240 contains the definition of sym, minus 0x8000. */
1241 HOWTO (R_PPC64_DTPREL64,
1242 0, /* rightshift */
1243 4, /* size (0 = byte, 1 = short, 2 = long) */
1244 64, /* bitsize */
1245 FALSE, /* pc_relative */
1246 0, /* bitpos */
1247 complain_overflow_dont, /* complain_on_overflow */
1248 ppc64_elf_unhandled_reloc, /* special_function */
1249 "R_PPC64_DTPREL64", /* name */
1250 FALSE, /* partial_inplace */
1251 0, /* src_mask */
1252 ONES (64), /* dst_mask */
1253 FALSE), /* pcrel_offset */
1254
1255 /* A 16 bit dtprel reloc. */
1256 HOWTO (R_PPC64_DTPREL16,
1257 0, /* rightshift */
1258 1, /* size (0 = byte, 1 = short, 2 = long) */
1259 16, /* bitsize */
1260 FALSE, /* pc_relative */
1261 0, /* bitpos */
1262 complain_overflow_signed, /* complain_on_overflow */
1263 ppc64_elf_unhandled_reloc, /* special_function */
1264 "R_PPC64_DTPREL16", /* name */
1265 FALSE, /* partial_inplace */
1266 0, /* src_mask */
1267 0xffff, /* dst_mask */
1268 FALSE), /* pcrel_offset */
1269
1270 /* Like DTPREL16, but no overflow. */
1271 HOWTO (R_PPC64_DTPREL16_LO,
1272 0, /* rightshift */
1273 1, /* size (0 = byte, 1 = short, 2 = long) */
1274 16, /* bitsize */
1275 FALSE, /* pc_relative */
1276 0, /* bitpos */
1277 complain_overflow_dont, /* complain_on_overflow */
1278 ppc64_elf_unhandled_reloc, /* special_function */
1279 "R_PPC64_DTPREL16_LO", /* name */
1280 FALSE, /* partial_inplace */
1281 0, /* src_mask */
1282 0xffff, /* dst_mask */
1283 FALSE), /* pcrel_offset */
1284
1285 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1286 HOWTO (R_PPC64_DTPREL16_HI,
1287 16, /* rightshift */
1288 1, /* size (0 = byte, 1 = short, 2 = long) */
1289 16, /* bitsize */
1290 FALSE, /* pc_relative */
1291 0, /* bitpos */
1292 complain_overflow_dont, /* complain_on_overflow */
1293 ppc64_elf_unhandled_reloc, /* special_function */
1294 "R_PPC64_DTPREL16_HI", /* name */
1295 FALSE, /* partial_inplace */
1296 0, /* src_mask */
1297 0xffff, /* dst_mask */
1298 FALSE), /* pcrel_offset */
1299
1300 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1301 HOWTO (R_PPC64_DTPREL16_HA,
1302 16, /* rightshift */
1303 1, /* size (0 = byte, 1 = short, 2 = long) */
1304 16, /* bitsize */
1305 FALSE, /* pc_relative */
1306 0, /* bitpos */
1307 complain_overflow_dont, /* complain_on_overflow */
1308 ppc64_elf_unhandled_reloc, /* special_function */
1309 "R_PPC64_DTPREL16_HA", /* name */
1310 FALSE, /* partial_inplace */
1311 0, /* src_mask */
1312 0xffff, /* dst_mask */
1313 FALSE), /* pcrel_offset */
1314
1315 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1316 HOWTO (R_PPC64_DTPREL16_HIGHER,
1317 32, /* rightshift */
1318 1, /* size (0 = byte, 1 = short, 2 = long) */
1319 16, /* bitsize */
1320 FALSE, /* pc_relative */
1321 0, /* bitpos */
1322 complain_overflow_dont, /* complain_on_overflow */
1323 ppc64_elf_unhandled_reloc, /* special_function */
1324 "R_PPC64_DTPREL16_HIGHER", /* name */
1325 FALSE, /* partial_inplace */
1326 0, /* src_mask */
1327 0xffff, /* dst_mask */
1328 FALSE), /* pcrel_offset */
1329
1330 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1331 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1332 32, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 16, /* bitsize */
1335 FALSE, /* pc_relative */
1336 0, /* bitpos */
1337 complain_overflow_dont, /* complain_on_overflow */
1338 ppc64_elf_unhandled_reloc, /* special_function */
1339 "R_PPC64_DTPREL16_HIGHERA", /* name */
1340 FALSE, /* partial_inplace */
1341 0, /* src_mask */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1344
1345 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1346 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1347 48, /* rightshift */
1348 1, /* size (0 = byte, 1 = short, 2 = long) */
1349 16, /* bitsize */
1350 FALSE, /* pc_relative */
1351 0, /* bitpos */
1352 complain_overflow_dont, /* complain_on_overflow */
1353 ppc64_elf_unhandled_reloc, /* special_function */
1354 "R_PPC64_DTPREL16_HIGHEST", /* name */
1355 FALSE, /* partial_inplace */
1356 0, /* src_mask */
1357 0xffff, /* dst_mask */
1358 FALSE), /* pcrel_offset */
1359
1360 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1361 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1362 48, /* rightshift */
1363 1, /* size (0 = byte, 1 = short, 2 = long) */
1364 16, /* bitsize */
1365 FALSE, /* pc_relative */
1366 0, /* bitpos */
1367 complain_overflow_dont, /* complain_on_overflow */
1368 ppc64_elf_unhandled_reloc, /* special_function */
1369 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1370 FALSE, /* partial_inplace */
1371 0, /* src_mask */
1372 0xffff, /* dst_mask */
1373 FALSE), /* pcrel_offset */
1374
1375 /* Like DTPREL16, but for insns with a DS field. */
1376 HOWTO (R_PPC64_DTPREL16_DS,
1377 0, /* rightshift */
1378 1, /* size (0 = byte, 1 = short, 2 = long) */
1379 16, /* bitsize */
1380 FALSE, /* pc_relative */
1381 0, /* bitpos */
1382 complain_overflow_signed, /* complain_on_overflow */
1383 ppc64_elf_unhandled_reloc, /* special_function */
1384 "R_PPC64_DTPREL16_DS", /* name */
1385 FALSE, /* partial_inplace */
1386 0, /* src_mask */
1387 0xfffc, /* dst_mask */
1388 FALSE), /* pcrel_offset */
1389
1390 /* Like DTPREL16_DS, but no overflow. */
1391 HOWTO (R_PPC64_DTPREL16_LO_DS,
1392 0, /* rightshift */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1394 16, /* bitsize */
1395 FALSE, /* pc_relative */
1396 0, /* bitpos */
1397 complain_overflow_dont, /* complain_on_overflow */
1398 ppc64_elf_unhandled_reloc, /* special_function */
1399 "R_PPC64_DTPREL16_LO_DS", /* name */
1400 FALSE, /* partial_inplace */
1401 0, /* src_mask */
1402 0xfffc, /* dst_mask */
1403 FALSE), /* pcrel_offset */
1404
1405 /* Computes a tp-relative displacement, the difference between the value of
1406 sym+add and the value of the thread pointer (r13). */
1407 HOWTO (R_PPC64_TPREL64,
1408 0, /* rightshift */
1409 4, /* size (0 = byte, 1 = short, 2 = long) */
1410 64, /* bitsize */
1411 FALSE, /* pc_relative */
1412 0, /* bitpos */
1413 complain_overflow_dont, /* complain_on_overflow */
1414 ppc64_elf_unhandled_reloc, /* special_function */
1415 "R_PPC64_TPREL64", /* name */
1416 FALSE, /* partial_inplace */
1417 0, /* src_mask */
1418 ONES (64), /* dst_mask */
1419 FALSE), /* pcrel_offset */
1420
1421 /* A 16 bit tprel reloc. */
1422 HOWTO (R_PPC64_TPREL16,
1423 0, /* rightshift */
1424 1, /* size (0 = byte, 1 = short, 2 = long) */
1425 16, /* bitsize */
1426 FALSE, /* pc_relative */
1427 0, /* bitpos */
1428 complain_overflow_signed, /* complain_on_overflow */
1429 ppc64_elf_unhandled_reloc, /* special_function */
1430 "R_PPC64_TPREL16", /* name */
1431 FALSE, /* partial_inplace */
1432 0, /* src_mask */
1433 0xffff, /* dst_mask */
1434 FALSE), /* pcrel_offset */
1435
1436 /* Like TPREL16, but no overflow. */
1437 HOWTO (R_PPC64_TPREL16_LO,
1438 0, /* rightshift */
1439 1, /* size (0 = byte, 1 = short, 2 = long) */
1440 16, /* bitsize */
1441 FALSE, /* pc_relative */
1442 0, /* bitpos */
1443 complain_overflow_dont, /* complain_on_overflow */
1444 ppc64_elf_unhandled_reloc, /* special_function */
1445 "R_PPC64_TPREL16_LO", /* name */
1446 FALSE, /* partial_inplace */
1447 0, /* src_mask */
1448 0xffff, /* dst_mask */
1449 FALSE), /* pcrel_offset */
1450
1451 /* Like TPREL16_LO, but next higher group of 16 bits. */
1452 HOWTO (R_PPC64_TPREL16_HI,
1453 16, /* rightshift */
1454 1, /* size (0 = byte, 1 = short, 2 = long) */
1455 16, /* bitsize */
1456 FALSE, /* pc_relative */
1457 0, /* bitpos */
1458 complain_overflow_dont, /* complain_on_overflow */
1459 ppc64_elf_unhandled_reloc, /* special_function */
1460 "R_PPC64_TPREL16_HI", /* name */
1461 FALSE, /* partial_inplace */
1462 0, /* src_mask */
1463 0xffff, /* dst_mask */
1464 FALSE), /* pcrel_offset */
1465
1466 /* Like TPREL16_HI, but adjust for low 16 bits. */
1467 HOWTO (R_PPC64_TPREL16_HA,
1468 16, /* rightshift */
1469 1, /* size (0 = byte, 1 = short, 2 = long) */
1470 16, /* bitsize */
1471 FALSE, /* pc_relative */
1472 0, /* bitpos */
1473 complain_overflow_dont, /* complain_on_overflow */
1474 ppc64_elf_unhandled_reloc, /* special_function */
1475 "R_PPC64_TPREL16_HA", /* name */
1476 FALSE, /* partial_inplace */
1477 0, /* src_mask */
1478 0xffff, /* dst_mask */
1479 FALSE), /* pcrel_offset */
1480
1481 /* Like TPREL16_HI, but next higher group of 16 bits. */
1482 HOWTO (R_PPC64_TPREL16_HIGHER,
1483 32, /* rightshift */
1484 1, /* size (0 = byte, 1 = short, 2 = long) */
1485 16, /* bitsize */
1486 FALSE, /* pc_relative */
1487 0, /* bitpos */
1488 complain_overflow_dont, /* complain_on_overflow */
1489 ppc64_elf_unhandled_reloc, /* special_function */
1490 "R_PPC64_TPREL16_HIGHER", /* name */
1491 FALSE, /* partial_inplace */
1492 0, /* src_mask */
1493 0xffff, /* dst_mask */
1494 FALSE), /* pcrel_offset */
1495
1496 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1497 HOWTO (R_PPC64_TPREL16_HIGHERA,
1498 32, /* rightshift */
1499 1, /* size (0 = byte, 1 = short, 2 = long) */
1500 16, /* bitsize */
1501 FALSE, /* pc_relative */
1502 0, /* bitpos */
1503 complain_overflow_dont, /* complain_on_overflow */
1504 ppc64_elf_unhandled_reloc, /* special_function */
1505 "R_PPC64_TPREL16_HIGHERA", /* name */
1506 FALSE, /* partial_inplace */
1507 0, /* src_mask */
1508 0xffff, /* dst_mask */
1509 FALSE), /* pcrel_offset */
1510
1511 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1512 HOWTO (R_PPC64_TPREL16_HIGHEST,
1513 48, /* rightshift */
1514 1, /* size (0 = byte, 1 = short, 2 = long) */
1515 16, /* bitsize */
1516 FALSE, /* pc_relative */
1517 0, /* bitpos */
1518 complain_overflow_dont, /* complain_on_overflow */
1519 ppc64_elf_unhandled_reloc, /* special_function */
1520 "R_PPC64_TPREL16_HIGHEST", /* name */
1521 FALSE, /* partial_inplace */
1522 0, /* src_mask */
1523 0xffff, /* dst_mask */
1524 FALSE), /* pcrel_offset */
1525
1526 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1527 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1528 48, /* rightshift */
1529 1, /* size (0 = byte, 1 = short, 2 = long) */
1530 16, /* bitsize */
1531 FALSE, /* pc_relative */
1532 0, /* bitpos */
1533 complain_overflow_dont, /* complain_on_overflow */
1534 ppc64_elf_unhandled_reloc, /* special_function */
1535 "R_PPC64_TPREL16_HIGHESTA", /* name */
1536 FALSE, /* partial_inplace */
1537 0, /* src_mask */
1538 0xffff, /* dst_mask */
1539 FALSE), /* pcrel_offset */
1540
1541 /* Like TPREL16, but for insns with a DS field. */
1542 HOWTO (R_PPC64_TPREL16_DS,
1543 0, /* rightshift */
1544 1, /* size (0 = byte, 1 = short, 2 = long) */
1545 16, /* bitsize */
1546 FALSE, /* pc_relative */
1547 0, /* bitpos */
1548 complain_overflow_signed, /* complain_on_overflow */
1549 ppc64_elf_unhandled_reloc, /* special_function */
1550 "R_PPC64_TPREL16_DS", /* name */
1551 FALSE, /* partial_inplace */
1552 0, /* src_mask */
1553 0xfffc, /* dst_mask */
1554 FALSE), /* pcrel_offset */
1555
1556 /* Like TPREL16_DS, but no overflow. */
1557 HOWTO (R_PPC64_TPREL16_LO_DS,
1558 0, /* rightshift */
1559 1, /* size (0 = byte, 1 = short, 2 = long) */
1560 16, /* bitsize */
1561 FALSE, /* pc_relative */
1562 0, /* bitpos */
1563 complain_overflow_dont, /* complain_on_overflow */
1564 ppc64_elf_unhandled_reloc, /* special_function */
1565 "R_PPC64_TPREL16_LO_DS", /* name */
1566 FALSE, /* partial_inplace */
1567 0, /* src_mask */
1568 0xfffc, /* dst_mask */
1569 FALSE), /* pcrel_offset */
1570
1571 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1572 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1573 to the first entry relative to the TOC base (r2). */
1574 HOWTO (R_PPC64_GOT_TLSGD16,
1575 0, /* rightshift */
1576 1, /* size (0 = byte, 1 = short, 2 = long) */
1577 16, /* bitsize */
1578 FALSE, /* pc_relative */
1579 0, /* bitpos */
1580 complain_overflow_signed, /* complain_on_overflow */
1581 ppc64_elf_unhandled_reloc, /* special_function */
1582 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1583 FALSE, /* partial_inplace */
5bd4f169
AM		 1584 0, /* src_mask */
1585 0xffff, /* dst_mask */
b34976b6 1586 FALSE), /* pcrel_offset */
5bd4f169 1587
411e1bfb
AM		 1588 /* Like GOT_TLSGD16, but no overflow. */
1589 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1590 0, /* rightshift */
1591 1, /* size (0 = byte, 1 = short, 2 = long) */
1592 16, /* bitsize */
b34976b6 1593 FALSE, /* pc_relative */
5bd4f169
AM		 1594 0, /* bitpos */
1595 complain_overflow_dont, /* complain_on_overflow */
805fc799 1596 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1597 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1598 FALSE, /* partial_inplace */
5bd4f169
AM		 1599 0, /* src_mask */
1600 0xffff, /* dst_mask */
b34976b6 1601 FALSE), /* pcrel_offset */
5bd4f169 1602
411e1bfb
AM		 1603 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1604 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1605 16, /* rightshift */
1606 1, /* size (0 = byte, 1 = short, 2 = long) */
1607 16, /* bitsize */
b34976b6 1608 FALSE, /* pc_relative */
5bd4f169
AM		 1609 0, /* bitpos */
1610 complain_overflow_dont, /* complain_on_overflow */
805fc799 1611 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1612 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1613 FALSE, /* partial_inplace */
5bd4f169
AM		 1614 0, /* src_mask */
1615 0xffff, /* dst_mask */
b34976b6 1616 FALSE), /* pcrel_offset */
5bd4f169 1617
411e1bfb
AM		 1618 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1619 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1620 16, /* rightshift */
1621 1, /* size (0 = byte, 1 = short, 2 = long) */
1622 16, /* bitsize */
b34976b6 1623 FALSE, /* pc_relative */
5bd4f169 1624 0, /* bitpos */
411e1bfb 1625 complain_overflow_dont, /* complain_on_overflow */
805fc799 1626 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1627 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1628 FALSE, /* partial_inplace */
5bd4f169
AM		 1629 0, /* src_mask */
1630 0xffff, /* dst_mask */
b34976b6 1631 FALSE), /* pcrel_offset */
5bd4f169 1632
411e1bfb
AM		 1633 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1634 with values (sym+add)@dtpmod and zero, and computes the offset to the
1635 first entry relative to the TOC base (r2). */
1636 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1637 0, /* rightshift */
1638 1, /* size (0 = byte, 1 = short, 2 = long) */
1639 16, /* bitsize */
b34976b6 1640 FALSE, /* pc_relative */
5bd4f169 1641 0, /* bitpos */
411e1bfb
AM		 1642 complain_overflow_signed, /* complain_on_overflow */
1643 ppc64_elf_unhandled_reloc, /* special_function */
1644 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1645 FALSE, /* partial_inplace */
d006db6c 1646 0, /* src_mask */
411e1bfb 1647 0xffff, /* dst_mask */
b34976b6 1648 FALSE), /* pcrel_offset */
5bd4f169 1649
411e1bfb
AM		 1650 /* Like GOT_TLSLD16, but no overflow. */
1651 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1652 0, /* rightshift */
1653 1, /* size (0 = byte, 1 = short, 2 = long) */
1654 16, /* bitsize */
b34976b6 1655 FALSE, /* pc_relative */
5bd4f169 1656 0, /* bitpos */
411e1bfb
AM		 1657 complain_overflow_dont, /* complain_on_overflow */
1658 ppc64_elf_unhandled_reloc, /* special_function */
1659 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1660 FALSE, /* partial_inplace */
d006db6c 1661 0, /* src_mask */
411e1bfb 1662 0xffff, /* dst_mask */
b34976b6 1663 FALSE), /* pcrel_offset */
5bd4f169 1664
411e1bfb
AM		 1665 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1666 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1667 16, /* rightshift */
5bd4f169
AM		 1668 1, /* size (0 = byte, 1 = short, 2 = long) */
1669 16, /* bitsize */
b34976b6 1670 FALSE, /* pc_relative */
5bd4f169 1671 0, /* bitpos */
411e1bfb 1672 complain_overflow_dont, /* complain_on_overflow */
805fc799 1673 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1674 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1675 FALSE, /* partial_inplace */
d006db6c 1676 0, /* src_mask */
411e1bfb 1677 0xffff, /* dst_mask */
b34976b6 1678 FALSE), /* pcrel_offset */
5bd4f169 1679
411e1bfb
AM		 1680 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1681 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1682 16, /* rightshift */
5bd4f169
AM		 1683 1, /* size (0 = byte, 1 = short, 2 = long) */
1684 16, /* bitsize */
b34976b6 1685 FALSE, /* pc_relative */
5bd4f169
AM		 1686 0, /* bitpos */
1687 complain_overflow_dont, /* complain_on_overflow */
805fc799 1688 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1689 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1690 FALSE, /* partial_inplace */
d006db6c 1691 0, /* src_mask */
411e1bfb 1692 0xffff, /* dst_mask */
b34976b6 1693 FALSE), /* pcrel_offset */
5bd4f169 1694
411e1bfb
AM		 1695 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1696 the offset to the entry relative to the TOC base (r2). */
1697 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1698 0, /* rightshift */
1699 1, /* size (0 = byte, 1 = short, 2 = long) */
1700 16, /* bitsize */
b34976b6 1701 FALSE, /* pc_relative */
5bd4f169 1702 0, /* bitpos */
411e1bfb 1703 complain_overflow_signed, /* complain_on_overflow */
805fc799 1704 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1705 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1706 FALSE, /* partial_inplace */
d006db6c 1707 0, /* src_mask */
5bd4f169 1708 0xfffc, /* dst_mask */
b34976b6 1709 FALSE), /* pcrel_offset */
5bd4f169 1710
411e1bfb
AM		 1711 /* Like GOT_DTPREL16_DS, but no overflow. */
1712 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1713 0, /* rightshift */
c061c2d8
AM		 1714 1, /* size (0 = byte, 1 = short, 2 = long) */
1715 16, /* bitsize */
b34976b6 1716 FALSE, /* pc_relative */
5bd4f169 1717 0, /* bitpos */
411e1bfb
AM		 1718 complain_overflow_dont, /* complain_on_overflow */
1719 ppc64_elf_unhandled_reloc, /* special_function */
1720 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1721 FALSE, /* partial_inplace */
d006db6c 1722 0, /* src_mask */
c061c2d8 1723 0xfffc, /* dst_mask */
b34976b6 1724 FALSE), /* pcrel_offset */
5bd4f169 1725
411e1bfb
AM		 1726 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1727 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1728 16, /* rightshift */
5bd4f169
AM		 1729 1, /* size (0 = byte, 1 = short, 2 = long) */
1730 16, /* bitsize */
b34976b6 1731 FALSE, /* pc_relative */
5bd4f169
AM		 1732 0, /* bitpos */
1733 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1734 ppc64_elf_unhandled_reloc, /* special_function */
1735 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1736 FALSE, /* partial_inplace */
d006db6c 1737 0, /* src_mask */
411e1bfb 1738 0xffff, /* dst_mask */
b34976b6 1739 FALSE), /* pcrel_offset */
5bd4f169 1740
411e1bfb
AM		 1741 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1742 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1743 16, /* rightshift */
1744 1, /* size (0 = byte, 1 = short, 2 = long) */
1745 16, /* bitsize */
1746 FALSE, /* pc_relative */
1747 0, /* bitpos */
1748 complain_overflow_dont, /* complain_on_overflow */
1749 ppc64_elf_unhandled_reloc, /* special_function */
1750 "R_PPC64_GOT_DTPREL16_HA", /* name */
1751 FALSE, /* partial_inplace */
1752 0, /* src_mask */
1753 0xffff, /* dst_mask */
1754 FALSE), /* pcrel_offset */
1755
1756 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1757 offset to the entry relative to the TOC base (r2). */
1758 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1759 0, /* rightshift */
1760 1, /* size (0 = byte, 1 = short, 2 = long) */
1761 16, /* bitsize */
b34976b6 1762 FALSE, /* pc_relative */
5bd4f169
AM		 1763 0, /* bitpos */
1764 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1765 ppc64_elf_unhandled_reloc, /* special_function */
1766 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1767 FALSE, /* partial_inplace */
d006db6c 1768 0, /* src_mask */
ad8e1ba5 1769 0xfffc, /* dst_mask */
b34976b6 1770 FALSE), /* pcrel_offset */
5bd4f169 1771
411e1bfb
AM		 1772 /* Like GOT_TPREL16_DS, but no overflow. */
1773 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1774 0, /* rightshift */
1775 1, /* size (0 = byte, 1 = short, 2 = long) */
1776 16, /* bitsize */
b34976b6 1777 FALSE, /* pc_relative */
5bd4f169
AM		 1778 0, /* bitpos */
1779 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1780 ppc64_elf_unhandled_reloc, /* special_function */
1781 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1782 FALSE, /* partial_inplace */
d006db6c 1783 0, /* src_mask */
ad8e1ba5 1784 0xfffc, /* dst_mask */
b34976b6 1785 FALSE), /* pcrel_offset */
5bd4f169 1786
411e1bfb
AM		 1787 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1788 HOWTO (R_PPC64_GOT_TPREL16_HI,
1789 16, /* rightshift */
5bd4f169
AM		 1790 1, /* size (0 = byte, 1 = short, 2 = long) */
1791 16, /* bitsize */
b34976b6 1792 FALSE, /* pc_relative */
5bd4f169 1793 0, /* bitpos */
411e1bfb 1794 complain_overflow_dont, /* complain_on_overflow */
805fc799 1795 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1796 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1797 FALSE, /* partial_inplace */
d006db6c 1798 0, /* src_mask */
411e1bfb 1799 0xffff, /* dst_mask */
b34976b6 1800 FALSE), /* pcrel_offset */
5bd4f169 1801
411e1bfb
AM		 1802 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1803 HOWTO (R_PPC64_GOT_TPREL16_HA,
1804 16, /* rightshift */
5bd4f169
AM		 1805 1, /* size (0 = byte, 1 = short, 2 = long) */
1806 16, /* bitsize */
b34976b6 1807 FALSE, /* pc_relative */
5bd4f169
AM		 1808 0, /* bitpos */
1809 complain_overflow_dont, /* complain_on_overflow */
805fc799 1810 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1811 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1812 FALSE, /* partial_inplace */
d006db6c 1813 0, /* src_mask */
411e1bfb 1814 0xffff, /* dst_mask */
b34976b6 1815 FALSE), /* pcrel_offset */
5bd4f169
AM		 1816
1817 /* GNU extension to record C++ vtable hierarchy. */
1818 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1819 0, /* rightshift */
1820 0, /* size (0 = byte, 1 = short, 2 = long) */
1821 0, /* bitsize */
b34976b6 1822 FALSE, /* pc_relative */
5bd4f169
AM		 1823 0, /* bitpos */
1824 complain_overflow_dont, /* complain_on_overflow */
1825 NULL, /* special_function */
1826 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1827 FALSE, /* partial_inplace */
5bd4f169
AM		 1828 0, /* src_mask */
1829 0, /* dst_mask */
b34976b6 1830 FALSE), /* pcrel_offset */
5bd4f169
AM		 1831
1832 /* GNU extension to record C++ vtable member usage. */
1833 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1834 0, /* rightshift */
1835 0, /* size (0 = byte, 1 = short, 2 = long) */
1836 0, /* bitsize */
b34976b6 1837 FALSE, /* pc_relative */
5bd4f169
AM		 1838 0, /* bitpos */
1839 complain_overflow_dont, /* complain_on_overflow */
1840 NULL, /* special_function */
1841 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1842 FALSE, /* partial_inplace */
5bd4f169
AM		 1843 0, /* src_mask */
1844 0, /* dst_mask */
b34976b6 1845 FALSE), /* pcrel_offset */
5bd4f169
AM		 1846};
1847
1848\f
1849/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1850 be done. */
1851
1852static void
4ce794b7 1853ppc_howto_init (void)
5bd4f169
AM		 1854{
1855 unsigned int i, type;
1856
1857 for (i = 0;
1858 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1859 i++)
1860 {
1861 type = ppc64_elf_howto_raw[i].type;
1862 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1863 / sizeof (ppc64_elf_howto_table[0])));
1864 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1865 }
1866}
1867
1868static reloc_howto_type *
4ce794b7
AM		 1869ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1870 bfd_reloc_code_real_type code)
5bd4f169 1871{
411e1bfb 1872 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 1873
1874 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1875 /* Initialize howto table if needed. */
1876 ppc_howto_init ();
1877
4ce794b7 1878 switch (code)
5bd4f169
AM		 1879 {
1880 default:
4ce794b7 1881 return NULL;
5bd4f169 1882
411e1bfb
AM		 1883 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1884 break;
1885 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1886 break;
1887 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1888 break;
1889 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1890 break;
1891 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1892 break;
1893 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1894 break;
1895 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1896 break;
411e1bfb 1897 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1898 break;
411e1bfb 1899 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1900 break;
411e1bfb 1901 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1902 break;
411e1bfb 1903 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1904 break;
411e1bfb 1905 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1906 break;
411e1bfb 1907 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1908 break;
411e1bfb 1909 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1910 break;
411e1bfb 1911 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1912 break;
411e1bfb 1913 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1914 break;
411e1bfb 1915 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1916 break;
411e1bfb 1917 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1918 break;
411e1bfb 1919 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1920 break;
411e1bfb 1921 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1922 break;
411e1bfb 1923 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1924 break;
411e1bfb 1925 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1926 break;
411e1bfb 1927 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1928 break;
411e1bfb 1929 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1930 break;
411e1bfb 1931 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1932 break;
411e1bfb 1933 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1934 break;
411e1bfb 1935 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1936 break;
411e1bfb 1937 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1938 break;
411e1bfb 1939 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1940 break;
411e1bfb 1941 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1942 break;
411e1bfb 1943 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1944 break;
411e1bfb 1945 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1946 break;
411e1bfb 1947 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1948 break;
411e1bfb 1949 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1950 break;
411e1bfb 1951 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1952 break;
411e1bfb 1953 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1954 break;
411e1bfb 1955 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1956 break;
411e1bfb 1957 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1958 break;
411e1bfb 1959 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1960 break;
411e1bfb 1961 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1962 break;
411e1bfb 1963 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1964 break;
411e1bfb 1965 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1966 break;
411e1bfb 1967 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1968 break;
411e1bfb 1969 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1970 break;
411e1bfb 1971 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1972 break;
411e1bfb 1973 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1974 break;
411e1bfb 1975 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1976 break;
411e1bfb 1977 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1978 break;
411e1bfb 1979 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1980 break;
411e1bfb 1981 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 1982 break;
411e1bfb 1983 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 1984 break;
411e1bfb 1985 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 1986 break;
411e1bfb 1987 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 1988 break;
411e1bfb 1989 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 1990 break;
411e1bfb 1991 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 1992 break;
411e1bfb 1993 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 1994 break;
411e1bfb 1995 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 1996 break;
411e1bfb 1997 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 1998 break;
411e1bfb 1999 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2000 break;
411e1bfb 2001 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2002 break;
411e1bfb 2003 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2004 break;
411e1bfb 2005 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2006 break;
411e1bfb 2007 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2008 break;
411e1bfb 2009 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2010 break;
411e1bfb 2011 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2012 break;
411e1bfb 2013 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2014 break;
411e1bfb
AM		 2015 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2016 break;
2017 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2018 break;
2019 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2020 break;
2021 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2022 break;
2023 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2024 break;
2025 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2026 break;
2027 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2028 break;
2029 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2030 break;
2031 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2032 break;
2033 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2034 break;
2035 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2036 break;
2037 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2038 break;
2039 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2040 break;
2041 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2042 break;
2043 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2044 break;
2045 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2046 break;
2047 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2048 break;
2049 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2050 break;
2051 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2052 break;
2053 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2054 break;
2055 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2056 break;
2057 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2058 break;
2059 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2060 break;
2061 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2062 break;
2063 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2064 break;
2065 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2066 break;
2067 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2068 break;
2069 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2070 break;
2071 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2072 break;
2073 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2074 break;
2075 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2076 break;
2077 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2078 break;
2079 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2080 break;
2081 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2082 break;
2083 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2084 break;
2085 }
2086
4ce794b7 2087 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2088};
2089
2090/* Set the howto pointer for a PowerPC ELF reloc. */
2091
2092static void
4ce794b7
AM		 2093ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2094 Elf_Internal_Rela *dst)
5bd4f169 2095{
65f38f15
AM		 2096 unsigned int type;
2097
ef60b7ff 2098 /* Initialize howto table if needed. */
5bd4f169 2099 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2100 ppc_howto_init ();
2101
65f38f15
AM		 2102 type = ELF64_R_TYPE (dst->r_info);
2103 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2104 / sizeof (ppc64_elf_howto_table[0])));
2105 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2106}
2107
04c9666a 2108/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2109
2110static bfd_reloc_status_type
4ce794b7
AM		 2111ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2112 void *data, asection *input_section,
2113 bfd *output_bfd, char **error_message)
5bd4f169 2114{
805fc799
AM		 2115 /* If this is a relocatable link (output_bfd test tells us), just
2116 call the generic function. Any adjustment will be done at final
2117 link time. */
2118 if (output_bfd != NULL)
cedb70c5 2119 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2120 input_section, output_bfd, error_message);
2121
2122 /* Adjust the addend for sign extension of the low 16 bits.
2123 We won't actually be using the low 16 bits, so trashing them
2124 doesn't matter. */
2125 reloc_entry->addend += 0x8000;
2126 return bfd_reloc_continue;
2127}
5bd4f169 2128
805fc799 2129static bfd_reloc_status_type
4ce794b7
AM		 2130ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2131 void *data, asection *input_section,
2132 bfd *output_bfd, char **error_message)
805fc799
AM		 2133{
2134 long insn;
04c9666a 2135 enum elf_ppc64_reloc_type r_type;
805fc799
AM		 2136 bfd_size_type octets;
2137 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2138 bfd_boolean is_power4 = FALSE;
805fc799
AM		 2139
2140 /* If this is a relocatable link (output_bfd test tells us), just
2141 call the generic function. Any adjustment will be done at final
2142 link time. */
5bd4f169 2143 if (output_bfd != NULL)
cedb70c5 2144 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2145 input_section, output_bfd, error_message);
2146
2147 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2148 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2149 insn &= ~(0x01 << 21);
4ce794b7 2150 r_type = reloc_entry->howto->type;
805fc799
AM		 2151 if (r_type == R_PPC64_ADDR14_BRTAKEN
2152 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2153 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM		 2154
2155 if (is_power4)
5bd4f169 2156 {
805fc799
AM		 2157 /* Set 'a' bit. This is 0b00010 in BO field for branch
2158 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2159 for branch on CTR insns (BO == 1a00t or 1a01t). */
2160 if ((insn & (0x14 << 21)) == (0x04 << 21))
2161 insn |= 0x02 << 21;
2162 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2163 insn |= 0x08 << 21;
2164 else
2165 return bfd_reloc_continue;
5bd4f169 2166 }
805fc799
AM		 2167 else
2168 {
2169 bfd_vma target = 0;
2170 bfd_vma from;
5bd4f169 2171
805fc799
AM		 2172 if (!bfd_is_com_section (symbol->section))
2173 target = symbol->value;
2174 target += symbol->section->output_section->vma;
2175 target += symbol->section->output_offset;
2176 target += reloc_entry->addend;
5bd4f169 2177
805fc799
AM		 2178 from = (reloc_entry->address
2179 + input_section->output_offset
2180 + input_section->output_section->vma);
5bd4f169 2181
805fc799
AM		 2182 /* Invert 'y' bit if not the default. */
2183 if ((bfd_signed_vma) (target - from) < 0)
2184 insn ^= 0x01 << 21;
2185 }
4ce794b7 2186 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
805fc799
AM		 2187 return bfd_reloc_continue;
2188}
5bd4f169 2189
805fc799 2190static bfd_reloc_status_type
4ce794b7
AM		 2191ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2192 void *data, asection *input_section,
2193 bfd *output_bfd, char **error_message)
805fc799
AM		 2194{
2195 /* If this is a relocatable link (output_bfd test tells us), just
2196 call the generic function. Any adjustment will be done at final
2197 link time. */
2198 if (output_bfd != NULL)
cedb70c5 2199 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2200 input_section, output_bfd, error_message);
5bd4f169 2201
805fc799
AM		 2202 /* Subtract the symbol section base address. */
2203 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2204 return bfd_reloc_continue;
2205}
2206
805fc799 2207static bfd_reloc_status_type
4ce794b7
AM		 2208ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2209 void *data, asection *input_section,
2210 bfd *output_bfd, char **error_message)
805fc799
AM		 2211{
2212 /* If this is a relocatable link (output_bfd test tells us), just
2213 call the generic function. Any adjustment will be done at final
2214 link time. */
2215 if (output_bfd != NULL)
cedb70c5 2216 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2217 input_section, output_bfd, error_message);
2218
2219 /* Subtract the symbol section base address. */
2220 reloc_entry->addend -= symbol->section->output_section->vma;
2221
2222 /* Adjust the addend for sign extension of the low 16 bits. */
2223 reloc_entry->addend += 0x8000;
2224 return bfd_reloc_continue;
2225}
2226
2227static bfd_reloc_status_type
4ce794b7
AM		 2228ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2229 void *data, asection *input_section,
2230 bfd *output_bfd, char **error_message)
805fc799
AM		 2231{
2232 bfd_vma TOCstart;
2233
2234 /* If this is a relocatable link (output_bfd test tells us), just
2235 call the generic function. Any adjustment will be done at final
2236 link time. */
2237 if (output_bfd != NULL)
cedb70c5 2238 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2239 input_section, output_bfd, error_message);
2240
2241 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2242 if (TOCstart == 0)
2243 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2244
2245 /* Subtract the TOC base address. */
2246 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2247 return bfd_reloc_continue;
2248}
2249
2250static bfd_reloc_status_type
4ce794b7
AM		 2251ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2252 void *data, asection *input_section,
2253 bfd *output_bfd, char **error_message)
805fc799
AM		 2254{
2255 bfd_vma TOCstart;
2256
2257 /* If this is a relocatable link (output_bfd test tells us), just
2258 call the generic function. Any adjustment will be done at final
2259 link time. */
2260 if (output_bfd != NULL)
cedb70c5 2261 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2262 input_section, output_bfd, error_message);
2263
2264 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2265 if (TOCstart == 0)
2266 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2267
2268 /* Subtract the TOC base address. */
2269 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2270
2271 /* Adjust the addend for sign extension of the low 16 bits. */
2272 reloc_entry->addend += 0x8000;
2273 return bfd_reloc_continue;
2274}
2275
2276static bfd_reloc_status_type
4ce794b7
AM		 2277ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2278 void *data, asection *input_section,
2279 bfd *output_bfd, char **error_message)
805fc799
AM		 2280{
2281 bfd_vma TOCstart;
2282 bfd_size_type octets;
2283
2284 /* If this is a relocatable link (output_bfd test tells us), just
2285 call the generic function. Any adjustment will be done at final
2286 link time. */
2287 if (output_bfd != NULL)
cedb70c5 2288 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2289 input_section, output_bfd, error_message);
2290
2291 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2292 if (TOCstart == 0)
2293 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2294
2295 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2296 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2297 return bfd_reloc_ok;
2298}
2299
2300static bfd_reloc_status_type
4ce794b7
AM		 2301ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2302 void *data, asection *input_section,
2303 bfd *output_bfd, char **error_message)
805fc799
AM		 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 if (error_message != NULL)
2313 {
2314 static char buf[60];
2315 sprintf (buf, "generic linker can't handle %s",
2316 reloc_entry->howto->name);
2317 *error_message = buf;
2318 }
2319 return bfd_reloc_dangerous;
2320}
2321
e717da7e
AM		 2322struct ppc64_elf_obj_tdata
2323{
2324 struct elf_obj_tdata elf;
2325
2326 /* Shortcuts to dynamic linker sections. */
2327 asection *got;
2328 asection *relgot;
2329
2330 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2331 sections means we potentially need one of these for each input bfd. */
2332 union {
2333 bfd_signed_vma refcount;
2334 bfd_vma offset;
2335 } tlsld_got;
2336};
2337
2338#define ppc64_elf_tdata(bfd) \
2339 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2340
2341#define ppc64_tlsld_got(bfd) \
2342 (&ppc64_elf_tdata (bfd)->tlsld_got)
2343
2344/* Override the generic function because we store some extras. */
2345
2346static bfd_boolean
2347ppc64_elf_mkobject (bfd *abfd)
2348{
2349 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2350 abfd->tdata.any = bfd_zalloc (abfd, amt);
2351 if (abfd->tdata.any == NULL)
2352 return FALSE;
2353 return TRUE;
2354}
2355
feee612b
AM		 2356/* Fix bad default arch selected for a 64 bit input bfd when the
2357 default is 32 bit. */
2358
b34976b6 2359static bfd_boolean
4ce794b7 2360ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2361{
2362 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2363 {
2364 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2365
2366 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2367 {
2368 /* Relies on arch after 32 bit default being 64 bit default. */
2369 abfd->arch_info = abfd->arch_info->next;
2370 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2371 }
2372 }
b34976b6 2373 return TRUE;
feee612b
AM		 2374}
2375
5bd4f169
AM		 2376/* Merge backend specific data from an object file to the output
2377 object file when linking. */
2f6d9989 2378
b34976b6 2379static bfd_boolean
4ce794b7 2380ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2381{
5bd4f169
AM		 2382 /* Check if we have the same endianess. */
2383 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2384 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM		 2385 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2386 {
2387 const char *msg;
2388
2389 if (bfd_big_endian (ibfd))
4ce794b7
AM		 2390 msg = _("%s: compiled for a big endian system "
2391 "and target is little endian");
5bd4f169 2392 else
4ce794b7
AM		 2393 msg = _("%s: compiled for a little endian system "
2394 "and target is big endian");
5bd4f169 2395
8f615d07 2396 (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
5bd4f169
AM		 2397
2398 bfd_set_error (bfd_error_wrong_format);
b34976b6 2399 return FALSE;
5bd4f169
AM		 2400 }
2401
b34976b6 2402 return TRUE;
5bd4f169 2403}
f0abc2a1 2404
5d35169e
AM		 2405/* Add extra PPC sections. */
2406
2407static struct bfd_elf_special_section const ppc64_elf_special_sections[]=
2408{
2409 { ".sdata", 0, NULL, 0,
2410 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2411 { ".sbss", 0, NULL, 0,
2412 SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2413 { ".plt", 0, NULL, 0,
2414 SHT_NOBITS, 0 },
2415 { ".toc", 0, NULL, 0,
2416 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2417 { ".toc1", 0, NULL, 0,
2418 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2419 { ".tocbss", 0, NULL, 0,
2420 SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2421 { NULL, 0, NULL, 0,
2422 0, 0 }
2423};
2424
f0abc2a1
AM		 2425struct _ppc64_elf_section_data
2426{
2427 struct bfd_elf_section_data elf;
411e1bfb
AM		 2428
2429 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM		 2430 union
2431 {
411e1bfb 2432 /* Points to the function code section for local opd entries. */
f0abc2a1 2433 asection **func_sec;
411e1bfb 2434 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM		 2435 long *adjust;
2436 } opd;
411e1bfb
AM		 2437
2438 /* An array for toc sections, indexed by offset/8.
2439 Specifies the relocation symbol index used at a given toc offset. */
2440 unsigned *t_symndx;
f0abc2a1
AM		 2441};
2442
2443#define ppc64_elf_section_data(sec) \
411e1bfb 2444 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2445
2446static bfd_boolean
4ce794b7 2447ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1
AM		 2448{
2449 struct _ppc64_elf_section_data *sdata;
2450 bfd_size_type amt = sizeof (*sdata);
2451
4ce794b7 2452 sdata = bfd_zalloc (abfd, amt);
f0abc2a1
AM		 2453 if (sdata == NULL)
2454 return FALSE;
4ce794b7 2455 sec->used_by_bfd = sdata;
f0abc2a1
AM		 2456
2457 return _bfd_elf_new_section_hook (abfd, sec);
2458}
5bd4f169 2459\f
65f38f15
AM		 2460/* The following functions are specific to the ELF linker, while
2461 functions above are used generally. Those named ppc64_elf_* are
2462 called by the main ELF linker code. They appear in this file more
2463 or less in the order in which they are called. eg.
2464 ppc64_elf_check_relocs is called early in the link process,
2465 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 2466 called.
2467
2468 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2469 functions have both a function code symbol and a function descriptor
2470 symbol. A call to foo in a relocatable object file looks like:
2471
2472 . .text
2473 . x:
2474 . bl .foo
2475 . nop
2476
2477 The function definition in another object file might be:
2478
2479 . .section .opd
2480 . foo: .quad .foo
2481 . .quad .TOC.@tocbase
2482 . .quad 0
2483 .
2484 . .text
2485 . .foo: blr
2486
2487 When the linker resolves the call during a static link, the branch
2488 unsurprisingly just goes to .foo and the .opd information is unused.
2489 If the function definition is in a shared library, things are a little
2490 different: The call goes via a plt call stub, the opd information gets
2491 copied to the plt, and the linker patches the nop.
2492
2493 . x:
2494 . bl .foo_stub
2495 . ld 2,40(1)
2496 .
2497 .
2498 . .foo_stub:
2499 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2500 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM		 2501 . std 2,40(1) # this is the general idea
2502 . ld 11,0(12)
2503 . ld 2,8(12)
2504 . mtctr 11
2505 . ld 11,16(12)
2506 . bctr
2507 .
2508 . .section .plt
2509 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2510
2511 The "reloc ()" notation is supposed to indicate that the linker emits
2512 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2513 copying.
2514
2515 What are the difficulties here? Well, firstly, the relocations
2516 examined by the linker in check_relocs are against the function code
2517 sym .foo, while the dynamic relocation in the plt is emitted against
2518 the function descriptor symbol, foo. Somewhere along the line, we need
2519 to carefully copy dynamic link information from one symbol to the other.
2520 Secondly, the generic part of the elf linker will make .foo a dynamic
2521 symbol as is normal for most other backends. We need foo dynamic
2522 instead, at least for an application final link. However, when
2523 creating a shared library containing foo, we need to have both symbols
2524 dynamic so that references to .foo are satisfied during the early
2525 stages of linking. Otherwise the linker might decide to pull in a
41bd81ab 2526 definition from some other object, eg. a static library. */
65f38f15
AM		 2527
2528/* The linker needs to keep track of the number of relocs that it
2529 decides to copy as dynamic relocs in check_relocs for each symbol.
2530 This is so that it can later discard them if they are found to be
2531 unnecessary. We store the information in a field extending the
2532 regular ELF linker hash table. */
2533
2534struct ppc_dyn_relocs
2535{
2536 struct ppc_dyn_relocs *next;
2537
2538 /* The input section of the reloc. */
2539 asection *sec;
2540
2541 /* Total number of relocs copied for the input section. */
2542 bfd_size_type count;
2543
2544 /* Number of pc-relative relocs copied for the input section. */
2545 bfd_size_type pc_count;
2546};
2547
411e1bfb
AM		 2548/* Track GOT entries needed for a given symbol. We might need more
2549 than one got entry per symbol. */
2550struct got_entry
2551{
2552 struct got_entry *next;
2553
e7b938ca 2554 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM		 2555 bfd_vma addend;
2556
e717da7e
AM		 2557 /* Unlike other ELF targets, we use separate GOT entries for the same
2558 symbol referenced from different input files. This is to support
2559 automatic multiple TOC/GOT sections, where the TOC base can vary
2560 from one input file to another.
2561
2562 Point to the BFD owning this GOT entry. */
2563 bfd *owner;
2564
2565 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2566 TLS_TPREL or TLS_DTPREL for tls entries. */
2567 char tls_type;
2568
e7b938ca 2569 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM		 2570 union
2571 {
2572 bfd_signed_vma refcount;
2573 bfd_vma offset;
2574 } got;
411e1bfb
AM		 2575};
2576
2577/* The same for PLT. */
2578struct plt_entry
2579{
2580 struct plt_entry *next;
2581
2582 bfd_vma addend;
2583
2584 union
2585 {
2586 bfd_signed_vma refcount;
2587 bfd_vma offset;
2588 } plt;
2589};
2590
65f38f15 2591/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM		 2592 selects those that must be copied when linking a shared library,
2593 even when the symbol is local. */
65f38f15 2594
411e1bfb 2595#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM		 2596 ((RTYPE) != R_PPC64_REL32 \
2597 && (RTYPE) != R_PPC64_REL64 \
04c9666a 2598 && (RTYPE) != R_PPC64_REL30)
65f38f15 2599
f4656909
AM		 2600/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2601 copying dynamic variables from a shared lib into an app's dynbss
2602 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 2603 shared lib. With code that gcc generates, it's vital that this be
2604 enabled; In the PowerPC64 ABI, the address of a function is actually
2605 the address of a function descriptor, which resides in the .opd
2606 section. gcc uses the descriptor directly rather than going via the
2607 GOT as some other ABI's do, which means that initialized function
2608 pointers must reference the descriptor. Thus, a function pointer
2609 initialized to the address of a function in a shared library will
2610 either require a copy reloc, or a dynamic reloc. Using a copy reloc
2611 redefines the function desctriptor symbol to point to the copy. This
2612 presents a problem as a plt entry for that function is also
2613 initialized from the function descriptor symbol and the copy reloc
2614 may not be initialized first. */
a23b6845 2615#define ELIMINATE_COPY_RELOCS 1
f4656909 2616
721956f4
AM		 2617/* Section name for stubs is the associated section name plus this
2618 string. */
2619#define STUB_SUFFIX ".stub"
2620
2621/* Linker stubs.
2622 ppc_stub_long_branch:
2623 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2624 destination, but a 24 bit branch in a stub section will reach.
2625 . b dest
2626
2627 ppc_stub_plt_branch:
2628 Similar to the above, but a 24 bit branch in the stub section won't
2629 reach its destination.
87e226ce
AM		 2630 . addis %r12,%r2,xxx@toc@ha
2631 . ld %r11,xxx@toc@l(%r12)
721956f4
AM		 2632 . mtctr %r11
2633 . bctr
2634
2635 ppc_stub_plt_call:
2636 Used to call a function in a shared library.
87e226ce 2637 . addis %r12,%r2,xxx@toc@ha
721956f4 2638 . std %r2,40(%r1)
87e226ce
AM		 2639 . ld %r11,xxx+0@toc@l(%r12)
2640 . ld %r2,xxx+8@toc@l(%r12)
721956f4 2641 . mtctr %r11
87e226ce 2642 . ld %r11,xxx+16@toc@l(%r12)
721956f4 2643 . bctr
ad8e1ba5
AM		 2644
2645 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
2646 code to adjust the value and save r2 to support multiple toc sections.
2647 A ppc_stub_long_branch with an r2 offset looks like:
2648 . std %r2,40(%r1)
2649 . addis %r2,%r2,off@ha
2650 . addi %r2,%r2,off@l
2651 . b dest
2652
2653 A ppc_stub_plt_branch with an r2 offset looks like:
2654 . std %r2,40(%r1)
2655 . addis %r12,%r2,xxx@toc@ha
2656 . ld %r11,xxx@toc@l(%r12)
2657 . addis %r2,%r2,off@ha
2658 . addi %r2,%r2,off@l
2659 . mtctr %r11
2660 . bctr
721956f4
AM		 2661*/
2662
2663enum ppc_stub_type {
2664 ppc_stub_none,
2665 ppc_stub_long_branch,
ad8e1ba5 2666 ppc_stub_long_branch_r2off,
721956f4 2667 ppc_stub_plt_branch,
ad8e1ba5 2668 ppc_stub_plt_branch_r2off,
721956f4
AM		 2669 ppc_stub_plt_call
2670};
2671
2672struct ppc_stub_hash_entry {
2673
2674 /* Base hash table entry structure. */
2675 struct bfd_hash_entry root;
2676
ad8e1ba5
AM		 2677 enum ppc_stub_type stub_type;
2678
721956f4
AM		 2679 /* The stub section. */
2680 asection *stub_sec;
2681
2682 /* Offset within stub_sec of the beginning of this stub. */
2683 bfd_vma stub_offset;
2684
2685 /* Given the symbol's value and its section we can determine its final
2686 value when building the stubs (so the stub knows where to jump. */
2687 bfd_vma target_value;
2688 asection *target_section;
2689
721956f4
AM		 2690 /* The symbol table entry, if any, that this was derived from. */
2691 struct ppc_link_hash_entry *h;
2692
411e1bfb
AM		 2693 /* And the reloc addend that this was derived from. */
2694 bfd_vma addend;
2695
721956f4
AM		 2696 /* Where this stub is being called from, or, in the case of combined
2697 stub sections, the first input section in the group. */
2698 asection *id_sec;
2699};
2700
2701struct ppc_branch_hash_entry {
2702
2703 /* Base hash table entry structure. */
2704 struct bfd_hash_entry root;
2705
2706 /* Offset within .branch_lt. */
2707 unsigned int offset;
2708
2709 /* Generation marker. */
2710 unsigned int iter;
2711};
65f38f15
AM		 2712
2713struct ppc_link_hash_entry
2714{
2715 struct elf_link_hash_entry elf;
2716
721956f4
AM		 2717 /* A pointer to the most recently used stub hash entry against this
2718 symbol. */
2719 struct ppc_stub_hash_entry *stub_cache;
2720
65f38f15
AM		 2721 /* Track dynamic relocs copied for this symbol. */
2722 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 2723
721956f4
AM		 2724 /* Link between function code and descriptor symbols. */
2725 struct elf_link_hash_entry *oh;
2726
e86ce104
AM		 2727 /* Flag function code and descriptor symbols. */
2728 unsigned int is_func:1;
2729 unsigned int is_func_descriptor:1;
1e2f5b6e 2730 unsigned int is_entry:1;
411e1bfb
AM		 2731
2732 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 2733 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2734 corresponding relocs are encountered during check_relocs.
2735 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2736 indicate the corresponding GOT entry type is not needed.
2737 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2738 a TPREL one. We use a separate flag rather than setting TPREL
2739 just for convenience in distinguishing the two cases. */
2740#define TLS_GD 1 /* GD reloc. */
2741#define TLS_LD 2 /* LD reloc. */
2742#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2743#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2744#define TLS_TLS 16 /* Any TLS reloc. */
2745#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2746#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2747 char tls_mask;
65f38f15
AM		 2748};
2749
2750/* ppc64 ELF linker hash table. */
2751
2752struct ppc_link_hash_table
2753{
2754 struct elf_link_hash_table elf;
2755
721956f4
AM		 2756 /* The stub hash table. */
2757 struct bfd_hash_table stub_hash_table;
2758
2759 /* Another hash table for plt_branch stubs. */
2760 struct bfd_hash_table branch_hash_table;
2761
2762 /* Linker stub bfd. */
2763 bfd *stub_bfd;
2764
2765 /* Linker call-backs. */
4ce794b7
AM		 2766 asection * (*add_stub_section) (const char *, asection *);
2767 void (*layout_sections_again) (void);
721956f4
AM		 2768
2769 /* Array to keep track of which stub sections have been created, and
2770 information on stub grouping. */
2771 struct map_stub {
2772 /* This is the section to which stubs in the group will be attached. */
2773 asection *link_sec;
2774 /* The stub section. */
2775 asection *stub_sec;
ad8e1ba5
AM		 2776 /* Along with elf_gp, specifies the TOC pointer used in this group. */
2777 bfd_vma toc_off;
721956f4
AM		 2778 } *stub_group;
2779
ad8e1ba5
AM		 2780 /* Support for multiple toc sections. */
2781 unsigned int no_multi_toc;
2782 unsigned int multi_toc_needed;
2783
2784 /* Temp used when calculating TOC pointers. */
2785 bfd_vma toc_curr;
2786
8f3bab57
AM		 2787 /* Highest input section id. */
2788 int top_id;
2789
734b6cf9
AM		 2790 /* Highest output section index. */
2791 int top_index;
2792
2793 /* List of input sections for each output section. */
2794 asection **input_list;
721956f4 2795
65f38f15 2796 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 2797 asection *got;
4ce794b7
AM		 2798 asection *plt;
2799 asection *relplt;
2800 asection *dynbss;
2801 asection *relbss;
2802 asection *glink;
82bd7b59 2803 asection *sfpr;
4ce794b7
AM		 2804 asection *brlt;
2805 asection *relbrlt;
ec338859 2806
411e1bfb
AM		 2807 /* Short-cut to first output tls section. */
2808 asection *tls_sec;
2809
2810 /* Shortcut to .__tls_get_addr. */
2811 struct elf_link_hash_entry *tls_get_addr;
2812
9b5ecbd0
AM		 2813 /* Statistics. */
2814 unsigned long stub_count[ppc_stub_plt_call];
2815
ad8e1ba5
AM		 2816 /* Set if we should emit symbols for stubs. */
2817 unsigned int emit_stub_syms;
2818
5d1634d7 2819 /* Set on error. */
721956f4
AM		 2820 unsigned int stub_error;
2821
2822 /* Flag set when small branches are detected. Used to
2823 select suitable defaults for the stub group size. */
2824 unsigned int has_14bit_branch;
2825
805fc799
AM		 2826 /* Set if we detect a reference undefined weak symbol. */
2827 unsigned int have_undefweak;
2828
721956f4
AM		 2829 /* Incremented every time we size stubs. */
2830 unsigned int stub_iteration;
5d1634d7 2831
ec338859
AM		 2832 /* Small local sym to section mapping cache. */
2833 struct sym_sec_cache sym_sec;
65f38f15
AM		 2834};
2835
2836/* Get the ppc64 ELF linker hash table from a link_info structure. */
2837
2838#define ppc_hash_table(p) \
2839 ((struct ppc_link_hash_table *) ((p)->hash))
2840
721956f4
AM		 2841#define ppc_stub_hash_lookup(table, string, create, copy) \
2842 ((struct ppc_stub_hash_entry *) \
2843 bfd_hash_lookup ((table), (string), (create), (copy)))
2844
2845#define ppc_branch_hash_lookup(table, string, create, copy) \
2846 ((struct ppc_branch_hash_entry *) \
2847 bfd_hash_lookup ((table), (string), (create), (copy)))
2848
2849/* Create an entry in the stub hash table. */
2850
2851static struct bfd_hash_entry *
4ce794b7
AM		 2852stub_hash_newfunc (struct bfd_hash_entry *entry,
2853 struct bfd_hash_table *table,
2854 const char *string)
721956f4
AM		 2855{
2856 /* Allocate the structure if it has not already been allocated by a
2857 subclass. */
2858 if (entry == NULL)
2859 {
2860 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
2861 if (entry == NULL)
2862 return entry;
2863 }
2864
2865 /* Call the allocation method of the superclass. */
2866 entry = bfd_hash_newfunc (entry, table, string);
2867 if (entry != NULL)
2868 {
2869 struct ppc_stub_hash_entry *eh;
2870
2871 /* Initialize the local fields. */
2872 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 2873 eh->stub_type = ppc_stub_none;
721956f4
AM		 2874 eh->stub_sec = NULL;
2875 eh->stub_offset = 0;
2876 eh->target_value = 0;
2877 eh->target_section = NULL;
721956f4
AM		 2878 eh->h = NULL;
2879 eh->id_sec = NULL;
2880 }
2881
2882 return entry;
2883}
2884
2885/* Create an entry in the branch hash table. */
2886
2887static struct bfd_hash_entry *
4ce794b7
AM		 2888branch_hash_newfunc (struct bfd_hash_entry *entry,
2889 struct bfd_hash_table *table,
2890 const char *string)
721956f4
AM		 2891{
2892 /* Allocate the structure if it has not already been allocated by a
2893 subclass. */
2894 if (entry == NULL)
2895 {
2896 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
2897 if (entry == NULL)
2898 return entry;
2899 }
2900
2901 /* Call the allocation method of the superclass. */
2902 entry = bfd_hash_newfunc (entry, table, string);
2903 if (entry != NULL)
2904 {
2905 struct ppc_branch_hash_entry *eh;
2906
2907 /* Initialize the local fields. */
2908 eh = (struct ppc_branch_hash_entry *) entry;
2909 eh->offset = 0;
2910 eh->iter = 0;
2911 }
2912
2913 return entry;
2914}
2915
65f38f15
AM		 2916/* Create an entry in a ppc64 ELF linker hash table. */
2917
2918static struct bfd_hash_entry *
4ce794b7
AM		 2919link_hash_newfunc (struct bfd_hash_entry *entry,
2920 struct bfd_hash_table *table,
2921 const char *string)
65f38f15
AM		 2922{
2923 /* Allocate the structure if it has not already been allocated by a
2924 subclass. */
2925 if (entry == NULL)
2926 {
2927 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
2928 if (entry == NULL)
2929 return entry;
2930 }
2931
2932 /* Call the allocation method of the superclass. */
2933 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2934 if (entry != NULL)
2935 {
2936 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
2937
721956f4 2938 eh->stub_cache = NULL;
65f38f15 2939 eh->dyn_relocs = NULL;
721956f4 2940 eh->oh = NULL;
e86ce104
AM		 2941 eh->is_func = 0;
2942 eh->is_func_descriptor = 0;
1e2f5b6e 2943 eh->is_entry = 0;
e7b938ca 2944 eh->tls_mask = 0;
65f38f15
AM		 2945 }
2946
2947 return entry;
2948}
2949
2950/* Create a ppc64 ELF linker hash table. */
2951
2952static struct bfd_link_hash_table *
4ce794b7 2953ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 2954{
2955 struct ppc_link_hash_table *htab;
2956 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
2957
4ce794b7 2958 htab = bfd_zmalloc (amt);
65f38f15
AM		 2959 if (htab == NULL)
2960 return NULL;
2961
2962 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
2963 {
e2d34d7d 2964 free (htab);
65f38f15
AM		 2965 return NULL;
2966 }
2967
721956f4
AM		 2968 /* Init the stub hash table too. */
2969 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
2970 return NULL;
2971
2972 /* And the branch hash table. */
2973 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
2974 return NULL;
2975
3254fd24
AM		 2976 /* Initializing two fields of the union is just cosmetic. We really
2977 only care about glist, but when compiled on a 32-bit host the
2978 bfd_vma fields are larger. Setting the bfd_vma to zero makes
2979 debugger inspection of these fields look nicer. */
2980 htab->elf.init_refcount.refcount = 0;
2981 htab->elf.init_refcount.glist = NULL;
2982 htab->elf.init_offset.offset = 0;
2983 htab->elf.init_offset.glist = NULL;
2984
65f38f15
AM		 2985 return &htab->elf.root;
2986}
2987
721956f4
AM		 2988/* Free the derived linker hash table. */
2989
2990static void
4ce794b7 2991ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM		 2992{
2993 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
2994
2995 bfd_hash_table_free (&ret->stub_hash_table);
2996 bfd_hash_table_free (&ret->branch_hash_table);
2997 _bfd_generic_link_hash_table_free (hash);
2998}
2999
e717da7e
AM		 3000/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3001
3002void
3003ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3004{
3005 struct ppc_link_hash_table *htab;
3006
3007 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3008
3009/* Always hook our dynamic sections into the first bfd, which is the
3010 linker created stub bfd. This ensures that the GOT header is at
3011 the start of the output TOC section. */
3012 htab = ppc_hash_table (info);
3013 htab->stub_bfd = abfd;
3014 htab->elf.dynobj = abfd;
3015}
3016
721956f4
AM		 3017/* Build a name for an entry in the stub hash table. */
3018
3019static char *
4ce794b7
AM		 3020ppc_stub_name (const asection *input_section,
3021 const asection *sym_sec,
3022 const struct ppc_link_hash_entry *h,
3023 const Elf_Internal_Rela *rel)
721956f4
AM		 3024{
3025 char *stub_name;
3026 bfd_size_type len;
3027
3028 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3029 offsets from a sym as a branch target? In fact, we could
3030 probably assume the addend is always zero. */
3031 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3032
3033 if (h)
3034 {
3035 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3036 stub_name = bfd_malloc (len);
3037 if (stub_name != NULL)
3038 {
97b639ba 3039 sprintf (stub_name, "%08x.%s+%x",
721956f4
AM		 3040 input_section->id & 0xffffffff,
3041 h->elf.root.root.string,
3042 (int) rel->r_addend & 0xffffffff);
3043 }
3044 }
3045 else
3046 {
ad8e1ba5 3047 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4
AM		 3048 stub_name = bfd_malloc (len);
3049 if (stub_name != NULL)
3050 {
97b639ba 3051 sprintf (stub_name, "%08x.%x:%x+%x",
721956f4
AM		 3052 input_section->id & 0xffffffff,
3053 sym_sec->id & 0xffffffff,
3054 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3055 (int) rel->r_addend & 0xffffffff);
3056 }
3057 }
3058 return stub_name;
3059}
3060
3061/* Look up an entry in the stub hash. Stub entries are cached because
3062 creating the stub name takes a bit of time. */
3063
3064static struct ppc_stub_hash_entry *
4ce794b7
AM		 3065ppc_get_stub_entry (const asection *input_section,
3066 const asection *sym_sec,
3067 struct elf_link_hash_entry *hash,
3068 const Elf_Internal_Rela *rel,
3069 struct ppc_link_hash_table *htab)
721956f4
AM		 3070{
3071 struct ppc_stub_hash_entry *stub_entry;
3072 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3073 const asection *id_sec;
3074
3075 /* If this input section is part of a group of sections sharing one
3076 stub section, then use the id of the first section in the group.
3077 Stub names need to include a section id, as there may well be
3078 more than one stub used to reach say, printf, and we need to
3079 distinguish between them. */
3080 id_sec = htab->stub_group[input_section->id].link_sec;
3081
3082 if (h != NULL && h->stub_cache != NULL
3083 && h->stub_cache->h == h
3084 && h->stub_cache->id_sec == id_sec)
3085 {
3086 stub_entry = h->stub_cache;
3087 }
3088 else
3089 {
3090 char *stub_name;
3091
3092 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3093 if (stub_name == NULL)
3094 return NULL;
3095
3096 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3097 stub_name, FALSE, FALSE);
721956f4
AM		 3098 if (h != NULL)
3099 h->stub_cache = stub_entry;
3100
3101 free (stub_name);
3102 }
3103
3104 return stub_entry;
3105}
3106
3107/* Add a new stub entry to the stub hash. Not all fields of the new
3108 stub entry are initialised. */
3109
3110static struct ppc_stub_hash_entry *
4ce794b7
AM		 3111ppc_add_stub (const char *stub_name,
3112 asection *section,
3113 struct ppc_link_hash_table *htab)
721956f4
AM		 3114{
3115 asection *link_sec;
3116 asection *stub_sec;
3117 struct ppc_stub_hash_entry *stub_entry;
3118
3119 link_sec = htab->stub_group[section->id].link_sec;
3120 stub_sec = htab->stub_group[section->id].stub_sec;
3121 if (stub_sec == NULL)
3122 {
3123 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3124 if (stub_sec == NULL)
3125 {
d4c88bbb 3126 size_t namelen;
721956f4
AM		 3127 bfd_size_type len;
3128 char *s_name;
3129
d4c88bbb
AM		 3130 namelen = strlen (link_sec->name);
3131 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM		 3132 s_name = bfd_alloc (htab->stub_bfd, len);
3133 if (s_name == NULL)
3134 return NULL;
3135
d4c88bbb
AM		 3136 memcpy (s_name, link_sec->name, namelen);
3137 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM		 3138 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3139 if (stub_sec == NULL)
3140 return NULL;
3141 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3142 }
3143 htab->stub_group[section->id].stub_sec = stub_sec;
3144 }
3145
3146 /* Enter this entry into the linker stub hash table. */
3147 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3148 TRUE, FALSE);
721956f4
AM		 3149 if (stub_entry == NULL)
3150 {
3151 (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
3152 bfd_archive_filename (section->owner),
3153 stub_name);
3154 return NULL;
3155 }
3156
3157 stub_entry->stub_sec = stub_sec;
3158 stub_entry->stub_offset = 0;
3159 stub_entry->id_sec = link_sec;
3160 return stub_entry;
3161}
3162
82bd7b59
AM		 3163/* Create sections for linker generated code. */
3164
b34976b6 3165static bfd_boolean
4ce794b7 3166create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM		 3167{
3168 struct ppc_link_hash_table *htab;
3169 flagword flags;
3170
3171 htab = ppc_hash_table (info);
3172
3173 /* Create .sfpr for code to save and restore fp regs. */
3174 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3175 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
721956f4 3176 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
82bd7b59
AM		 3177 if (htab->sfpr == NULL
3178 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3179 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3180 return FALSE;
82bd7b59 3181
721956f4 3182 /* Create .glink for lazy dynamic linking support. */
4ce794b7
AM		 3183 htab->glink = bfd_make_section_anyway (dynobj, ".glink");
3184 if (htab->glink == NULL
3185 || ! bfd_set_section_flags (dynobj, htab->glink, flags)
3186 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
b34976b6 3187 return FALSE;
82bd7b59 3188
721956f4
AM		 3189 /* Create .branch_lt for plt_branch stubs. */
3190 flags = (SEC_ALLOC | SEC_LOAD
3191 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3192 htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3193 if (htab->brlt == NULL
3194 || ! bfd_set_section_flags (dynobj, htab->brlt, flags)
3195 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3196 return FALSE;
721956f4
AM		 3197
3198 if (info->shared)
3199 {
3200 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3201 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3202 htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
3203 if (!htab->relbrlt
3204 || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags)
3205 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
b34976b6 3206 return FALSE;
721956f4 3207 }
b34976b6 3208 return TRUE;
82bd7b59
AM		 3209}
3210
e717da7e
AM		 3211/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3212 not already done. */
65f38f15 3213
b34976b6 3214static bfd_boolean
e717da7e 3215create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3216{
e717da7e
AM		 3217 asection *got, *relgot;
3218 flagword flags;
3219 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3220
4ce794b7 3221 if (!htab->got)
e717da7e
AM		 3222 {
3223 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3224 return FALSE;
3225
3226 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3227 if (!htab->got)
3228 abort ();
3229 }
3230
3231 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3232 | SEC_LINKER_CREATED);
3233
3234 got = bfd_make_section (abfd, ".got");
3235 if (!got
3236 || !bfd_set_section_flags (abfd, got, flags)
3237 || !bfd_set_section_alignment (abfd, got, 3))
3238 return FALSE;
65f38f15 3239
e717da7e
AM		 3240 relgot = bfd_make_section (abfd, ".rela.got");
3241 if (!relgot
3242 || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY)
3243 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3244 return FALSE;
e717da7e
AM		 3245
3246 ppc64_elf_tdata (abfd)->got = got;
3247 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3248 return TRUE;
65f38f15 3249}
5bd4f169 3250
82bd7b59 3251/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3252
b34976b6 3253static bfd_boolean
4ce794b7 3254ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3255{
65f38f15 3256 struct ppc_link_hash_table *htab;
5bd4f169 3257
65f38f15 3258 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3259 return FALSE;
65f38f15 3260
e717da7e
AM		 3261 htab = ppc_hash_table (info);
3262 if (!htab->got)
3263 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM		 3264 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3265 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3266 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3267 if (!info->shared)
4ce794b7 3268 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3269
e717da7e 3270 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3271 || (!info->shared && !htab->relbss))
65f38f15
AM		 3272 abort ();
3273
b34976b6 3274 return TRUE;
5bd4f169
AM		 3275}
3276
65f38f15
AM		 3277/* Copy the extra info we tack onto an elf_link_hash_entry. */
3278
3279static void
4ce794b7
AM		 3280ppc64_elf_copy_indirect_symbol (struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3281 struct elf_link_hash_entry *dir,
3282 struct elf_link_hash_entry *ind)
65f38f15
AM		 3283{
3284 struct ppc_link_hash_entry *edir, *eind;
81848ca0 3285 flagword mask;
65f38f15
AM		 3286
3287 edir = (struct ppc_link_hash_entry *) dir;
3288 eind = (struct ppc_link_hash_entry *) ind;
3289
411e1bfb 3290 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3291 if (eind->dyn_relocs != NULL)
65f38f15 3292 {
bbd7ec4a
AM		 3293 if (edir->dyn_relocs != NULL)
3294 {
3295 struct ppc_dyn_relocs **pp;
3296 struct ppc_dyn_relocs *p;
3297
411e1bfb 3298 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM		 3299 abort ();
3300
3301 /* Add reloc counts against the weak sym to the strong sym
3302 list. Merge any entries against the same section. */
3303 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3304 {
3305 struct ppc_dyn_relocs *q;
3306
3307 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3308 if (q->sec == p->sec)
3309 {
3310 q->pc_count += p->pc_count;
3311 q->count += p->count;
3312 *pp = p->next;
3313 break;
3314 }
3315 if (q == NULL)
3316 pp = &p->next;
3317 }
3318 *pp = edir->dyn_relocs;
3319 }
3320
65f38f15
AM		 3321 edir->dyn_relocs = eind->dyn_relocs;
3322 eind->dyn_relocs = NULL;
3323 }
65f38f15 3324
6349e628
AM		 3325 edir->is_func |= eind->is_func;
3326 edir->is_func_descriptor |= eind->is_func_descriptor;
3327 edir->is_entry |= eind->is_entry;
58ac9f71 3328 edir->tls_mask |= eind->tls_mask;
6349e628 3329
81848ca0
AM		 3330 mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR
3331 | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF);
3332 /* If called to transfer flags for a weakdef during processing
3333 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
3334 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3335 if (ELIMINATE_COPY_RELOCS
3336 && eind->elf.root.type != bfd_link_hash_indirect
3337 && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
3338 mask &= ~ELF_LINK_NON_GOT_REF;
3339
3340 edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask;
6349e628
AM		 3341
3342 /* If we were called to copy over info for a weak sym, that's all. */
3343 if (eind->elf.root.type != bfd_link_hash_indirect)
3344 return;
3345
81848ca0
AM		 3346 /* Copy over got entries that we may have already seen to the
3347 symbol which just became indirect. */
411e1bfb
AM		 3348 if (eind->elf.got.glist != NULL)
3349 {
3350 if (edir->elf.got.glist != NULL)
3351 {
3352 struct got_entry **entp;
3353 struct got_entry *ent;
3354
3355 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3356 {
3357 struct got_entry *dent;
3358
3359 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3360 if (dent->addend == ent->addend
e717da7e 3361 && dent->owner == ent->owner
411e1bfb
AM		 3362 && dent->tls_type == ent->tls_type)
3363 {
3364 dent->got.refcount += ent->got.refcount;
3365 *entp = ent->next;
3366 break;
3367 }
3368 if (dent == NULL)
3369 entp = &ent->next;
3370 }
3371 *entp = edir->elf.got.glist;
3372 }
3373
3374 edir->elf.got.glist = eind->elf.got.glist;
3375 eind->elf.got.glist = NULL;
3376 }
3377
3378 /* And plt entries. */
3379 if (eind->elf.plt.plist != NULL)
3380 {
3381 if (edir->elf.plt.plist != NULL)
3382 {
3383 struct plt_entry **entp;
3384 struct plt_entry *ent;
3385
3386 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3387 {
3388 struct plt_entry *dent;
3389
3390 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3391 if (dent->addend == ent->addend)
3392 {
3393 dent->plt.refcount += ent->plt.refcount;
3394 *entp = ent->next;
3395 break;
3396 }
3397 if (dent == NULL)
3398 entp = &ent->next;
3399 }
3400 *entp = edir->elf.plt.plist;
3401 }
3402
3403 edir->elf.plt.plist = eind->elf.plt.plist;
3404 eind->elf.plt.plist = NULL;
3405 }
3406
411e1bfb
AM		 3407 if (edir->elf.dynindx == -1)
3408 {
3409 edir->elf.dynindx = eind->elf.dynindx;
3410 edir->elf.dynstr_index = eind->elf.dynstr_index;
3411 eind->elf.dynindx = -1;
3412 eind->elf.dynstr_index = 0;
3413 }
3414 else
3415 BFD_ASSERT (eind->elf.dynindx == -1);
3416}
3417
3418/* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3419 symbols undefined on the command-line. */
3420
3421bfd_boolean
4ce794b7 3422ppc64_elf_mark_entry_syms (struct bfd_link_info *info)
411e1bfb
AM		 3423{
3424 struct ppc_link_hash_table *htab;
3425 struct bfd_sym_chain *sym;
3426
3427 htab = ppc_hash_table (info);
3428 for (sym = info->gc_sym_list; sym; sym = sym->next)
3429 {
3430 struct elf_link_hash_entry *h;
3431
3432 h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
3433 if (h != NULL)
3434 ((struct ppc_link_hash_entry *) h)->is_entry = 1;
3435 }
3436 return TRUE;
3437}
3438
3439static bfd_boolean
4ce794b7
AM		 3440update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
3441 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 3442{
3443 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 3444 char *local_got_tls_masks;
411e1bfb
AM		 3445
3446 if (local_got_ents == NULL)
3447 {
3448 bfd_size_type size = symtab_hdr->sh_info;
3449
e7b938ca 3450 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 3451 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM		 3452 if (local_got_ents == NULL)
3453 return FALSE;
3454 elf_local_got_ents (abfd) = local_got_ents;
3455 }
3456
3457 if ((tls_type & TLS_EXPLICIT) == 0)
3458 {
3459 struct got_entry *ent;
3460
3461 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 3462 if (ent->addend == r_addend
3463 && ent->owner == abfd
3464 && ent->tls_type == tls_type)
411e1bfb
AM		 3465 break;
3466 if (ent == NULL)
3467 {
3468 bfd_size_type amt = sizeof (*ent);
4ce794b7 3469 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 3470 if (ent == NULL)
3471 return FALSE;
3472 ent->next = local_got_ents[r_symndx];
3473 ent->addend = r_addend;
e717da7e 3474 ent->owner = abfd;
411e1bfb
AM		 3475 ent->tls_type = tls_type;
3476 ent->got.refcount = 0;
3477 local_got_ents[r_symndx] = ent;
3478 }
3479 ent->got.refcount += 1;
3480 }
3481
e7b938ca
AM		 3482 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
3483 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 3484 return TRUE;
65f38f15
AM		 3485}
3486
411e1bfb 3487static bfd_boolean
4ce794b7 3488update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 3489{
411e1bfb 3490 struct plt_entry *ent;
1e2f5b6e 3491
411e1bfb
AM		 3492 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
3493 if (ent->addend == addend)
3494 break;
3495 if (ent == NULL)
1e2f5b6e 3496 {
411e1bfb 3497 bfd_size_type amt = sizeof (*ent);
4ce794b7 3498 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 3499 if (ent == NULL)
3500 return FALSE;
3501 ent->next = eh->elf.plt.plist;
3502 ent->addend = addend;
3503 ent->plt.refcount = 0;
3504 eh->elf.plt.plist = ent;
1e2f5b6e 3505 }
411e1bfb
AM		 3506 ent->plt.refcount += 1;
3507 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3508 eh->is_func = 1;
b34976b6 3509 return TRUE;
1e2f5b6e
AM		 3510}
3511
50bc7936
AM		 3512/* Find the function descriptor hash entry from the given function code
3513 hash entry FH. Link the entries via their OH fields. */
3514static struct ppc_link_hash_entry *
3515get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
3516{
3517 struct ppc_link_hash_entry *fdh = (struct ppc_link_hash_entry *) fh->oh;
3518
3519 if (fdh == NULL)
3520 {
3521 const char *fd_name = fh->elf.root.root.string + 1;
3522
3523 fdh = (struct ppc_link_hash_entry *)
3524 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
3525 if (fdh != NULL)
3526 {
3527 fdh->is_func_descriptor = 1;
3528 fdh->oh = &fh->elf;
3529 fh->is_func = 1;
3530 fh->oh = &fdh->elf;
3531 }
3532 }
3533
3534 return fdh;
3535}
3536
5bd4f169 3537/* Look through the relocs for a section during the first phase, and
65f38f15 3538 calculate needed space in the global offset table, procedure
5d1634d7 3539 linkage table, and dynamic reloc sections. */
5bd4f169 3540
b34976b6 3541static bfd_boolean
4ce794b7
AM		 3542ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
3543 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 3544{
65f38f15 3545 struct ppc_link_hash_table *htab;
5bd4f169
AM		 3546 Elf_Internal_Shdr *symtab_hdr;
3547 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3548 const Elf_Internal_Rela *rel;
3549 const Elf_Internal_Rela *rel_end;
5bd4f169 3550 asection *sreloc;
1e2f5b6e 3551 asection **opd_sym_map;
5bd4f169 3552
1049f94e 3553 if (info->relocatable)
b34976b6 3554 return TRUE;
5bd4f169 3555
65f38f15 3556 htab = ppc_hash_table (info);
5bd4f169 3557 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM		 3558
3559 sym_hashes = elf_sym_hashes (abfd);
3560 sym_hashes_end = (sym_hashes
1e2f5b6e
AM		 3561 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
3562 - symtab_hdr->sh_info);
5bd4f169
AM		 3563
3564 sreloc = NULL;
1e2f5b6e
AM		 3565 opd_sym_map = NULL;
3566 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
3567 {
3568 /* Garbage collection needs some extra help with .opd sections.
3569 We don't want to necessarily keep everything referenced by
3570 relocs in .opd, as that would keep all functions. Instead,
3571 if we reference an .opd symbol (a function descriptor), we
3572 want to keep the function code symbol's section. This is
3573 easy for global symbols, but for local syms we need to keep
3574 information about the associated function section. Later, if
3575 edit_opd deletes entries, we'll use this array to adjust
3576 local syms in .opd. */
3577 union opd_info {
3578 asection *func_section;
3579 long entry_adjust;
3580 };
3581 bfd_size_type amt;
3582
3583 amt = sec->_raw_size * sizeof (union opd_info) / 24;
4ce794b7 3584 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 3585 if (opd_sym_map == NULL)
b34976b6 3586 return FALSE;
f0abc2a1 3587 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 3588 }
5bd4f169 3589
82bd7b59
AM		 3590 if (htab->sfpr == NULL
3591 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 3592 return FALSE;
82bd7b59 3593
5bd4f169
AM		 3594 rel_end = relocs + sec->reloc_count;
3595 for (rel = relocs; rel < rel_end; rel++)
3596 {
3597 unsigned long r_symndx;
3598 struct elf_link_hash_entry *h;
04c9666a 3599 enum elf_ppc64_reloc_type r_type;
411e1bfb 3600 int tls_type = 0;
5bd4f169
AM		 3601
3602 r_symndx = ELF64_R_SYM (rel->r_info);
3603 if (r_symndx < symtab_hdr->sh_info)
3604 h = NULL;
3605 else
3606 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3607
4ce794b7 3608 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 3609 switch (r_type)
5bd4f169 3610 {
411e1bfb
AM		 3611 case R_PPC64_GOT_TLSLD16:
3612 case R_PPC64_GOT_TLSLD16_LO:
3613 case R_PPC64_GOT_TLSLD16_HI:
3614 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 3615 ppc64_tlsld_got (abfd)->refcount += 1;
951fd09b 3616 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 3617 goto dogottls;
3618
3619 case R_PPC64_GOT_TLSGD16:
3620 case R_PPC64_GOT_TLSGD16_LO:
3621 case R_PPC64_GOT_TLSGD16_HI:
3622 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 3623 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 3624 goto dogottls;
3625
3626 case R_PPC64_GOT_TPREL16_DS:
3627 case R_PPC64_GOT_TPREL16_LO_DS:
3628 case R_PPC64_GOT_TPREL16_HI:
3629 case R_PPC64_GOT_TPREL16_HA:
3630 if (info->shared)
3631 info->flags |= DF_STATIC_TLS;
3632 tls_type = TLS_TLS | TLS_TPREL;
3633 goto dogottls;
3634
3635 case R_PPC64_GOT_DTPREL16_DS:
3636 case R_PPC64_GOT_DTPREL16_LO_DS:
3637 case R_PPC64_GOT_DTPREL16_HI:
3638 case R_PPC64_GOT_DTPREL16_HA:
3639 tls_type = TLS_TLS | TLS_DTPREL;
3640 dogottls:
3641 sec->has_tls_reloc = 1;
3642 /* Fall thru */
3643
5bd4f169 3644 case R_PPC64_GOT16:
5bd4f169 3645 case R_PPC64_GOT16_DS:
65f38f15
AM		 3646 case R_PPC64_GOT16_HA:
3647 case R_PPC64_GOT16_HI:
3648 case R_PPC64_GOT16_LO:
5bd4f169 3649 case R_PPC64_GOT16_LO_DS:
65f38f15 3650 /* This symbol requires a global offset table entry. */
ad8e1ba5 3651 sec->has_gp_reloc = 1;
e717da7e
AM		 3652 if (ppc64_elf_tdata (abfd)->got == NULL
3653 && !create_got_section (abfd, info))
b34976b6 3654 return FALSE;
5bd4f169
AM		 3655
3656 if (h != NULL)
3657 {
411e1bfb
AM		 3658 struct ppc_link_hash_entry *eh;
3659 struct got_entry *ent;
65f38f15 3660
411e1bfb
AM		 3661 eh = (struct ppc_link_hash_entry *) h;
3662 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
3663 if (ent->addend == rel->r_addend
e717da7e 3664 && ent->owner == abfd
411e1bfb
AM		 3665 && ent->tls_type == tls_type)
3666 break;
3667 if (ent == NULL)
5bd4f169 3668 {
411e1bfb 3669 bfd_size_type amt = sizeof (*ent);
4ce794b7 3670 ent = bfd_alloc (abfd, amt);
411e1bfb 3671 if (ent == NULL)
b34976b6 3672 return FALSE;
411e1bfb
AM		 3673 ent->next = eh->elf.got.glist;
3674 ent->addend = rel->r_addend;
e717da7e 3675 ent->owner = abfd;
411e1bfb
AM		 3676 ent->tls_type = tls_type;
3677 ent->got.refcount = 0;
3678 eh->elf.got.glist = ent;
5bd4f169 3679 }
411e1bfb 3680 ent->got.refcount += 1;
e7b938ca 3681 eh->tls_mask |= tls_type;
5bd4f169 3682 }
411e1bfb
AM		 3683 else
3684 /* This is a global offset table entry for a local symbol. */
3685 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3686 rel->r_addend, tls_type))
3687 return FALSE;
5bd4f169
AM		 3688 break;
3689
5bd4f169 3690 case R_PPC64_PLT16_HA:
65f38f15
AM		 3691 case R_PPC64_PLT16_HI:
3692 case R_PPC64_PLT16_LO:
3693 case R_PPC64_PLT32:
3694 case R_PPC64_PLT64:
5bd4f169 3695 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 3696 actually build the entry in adjust_dynamic_symbol,
3697 because this might be a case of linking PIC code without
3698 linking in any dynamic objects, in which case we don't
3699 need to generate a procedure linkage table after all. */
5bd4f169
AM		 3700 if (h == NULL)
3701 {
3702 /* It does not make sense to have a procedure linkage
3fad3c7c 3703 table entry for a local symbol. */
5bd4f169 3704 bfd_set_error (bfd_error_bad_value);
b34976b6 3705 return FALSE;
5bd4f169 3706 }
411e1bfb
AM		 3707 else
3708 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3709 rel->r_addend))
3710 return FALSE;
5bd4f169
AM		 3711 break;
3712
3713 /* The following relocations don't need to propagate the
3714 relocation if linking a shared object since they are
3715 section relative. */
3716 case R_PPC64_SECTOFF:
3717 case R_PPC64_SECTOFF_LO:
3718 case R_PPC64_SECTOFF_HI:
3719 case R_PPC64_SECTOFF_HA:
3720 case R_PPC64_SECTOFF_DS:
3721 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 3722 case R_PPC64_DTPREL16:
3723 case R_PPC64_DTPREL16_LO:
3724 case R_PPC64_DTPREL16_HI:
3725 case R_PPC64_DTPREL16_HA:
3726 case R_PPC64_DTPREL16_DS:
3727 case R_PPC64_DTPREL16_LO_DS:
3728 case R_PPC64_DTPREL16_HIGHER:
3729 case R_PPC64_DTPREL16_HIGHERA:
3730 case R_PPC64_DTPREL16_HIGHEST:
3731 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 3732 break;
3733
ad8e1ba5
AM		 3734 /* Nor do these. */
3735 case R_PPC64_TOC16:
3736 case R_PPC64_TOC16_LO:
3737 case R_PPC64_TOC16_HI:
3738 case R_PPC64_TOC16_HA:
3739 case R_PPC64_TOC16_DS:
3740 case R_PPC64_TOC16_LO_DS:
3741 sec->has_gp_reloc = 1;
3742 break;
3743
5bd4f169
AM		 3744 /* This relocation describes the C++ object vtable hierarchy.
3745 Reconstruct it for later use during GC. */
3746 case R_PPC64_GNU_VTINHERIT:
3747 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3748 return FALSE;
5bd4f169
AM		 3749 break;
3750
3751 /* This relocation describes which C++ vtable entries are actually
3752 used. Record for later use during GC. */
3753 case R_PPC64_GNU_VTENTRY:
3754 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 3755 return FALSE;
5bd4f169
AM		 3756 break;
3757
721956f4
AM		 3758 case R_PPC64_REL14:
3759 case R_PPC64_REL14_BRTAKEN:
3760 case R_PPC64_REL14_BRNTAKEN:
3761 htab->has_14bit_branch = 1;
3762 /* Fall through. */
3763
5d1634d7 3764 case R_PPC64_REL24:
e86ce104
AM		 3765 if (h != NULL
3766 && h->root.root.string[0] == '.'
3767 && h->root.root.string[1] != 0)
5d1634d7
AM		 3768 {
3769 /* We may need a .plt entry if the function this reloc
3770 refers to is in a shared lib. */
411e1bfb
AM		 3771 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3772 rel->r_addend))
3773 return FALSE;
3774 if (h == htab->tls_get_addr)
3775 sec->has_tls_reloc = 1;
a48ebf4d
AM		 3776 else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15)
3777 == 0)
3778 && (h->root.root.string[15] == 0
3779 || h->root.root.string[15] == '@'))
411e1bfb
AM		 3780 {
3781 htab->tls_get_addr = h;
3782 sec->has_tls_reloc = 1;
3783 }
3784 }
3785 break;
3786
3787 case R_PPC64_TPREL64:
3788 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
3789 if (info->shared)
3790 info->flags |= DF_STATIC_TLS;
3791 goto dotlstoc;
3792
3793 case R_PPC64_DTPMOD64:
3794 if (rel + 1 < rel_end
3795 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
3796 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 3797 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 3798 else
951fd09b 3799 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 3800 goto dotlstoc;
3801
3802 case R_PPC64_DTPREL64:
3803 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
3804 if (rel != relocs
3805 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
3806 && rel[-1].r_offset == rel->r_offset - 8)
3807 /* This is the second reloc of a dtpmod, dtprel pair.
3808 Don't mark with TLS_DTPREL. */
3809 goto dodyn;
3810
3811 dotlstoc:
3812 sec->has_tls_reloc = 1;
3813 if (h != NULL)
3814 {
3815 struct ppc_link_hash_entry *eh;
3816 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 3817 eh->tls_mask |= tls_type;
411e1bfb
AM		 3818 }
3819 else
3820 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3821 rel->r_addend, tls_type))
3822 return FALSE;
3823
3824 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3825 {
e7b938ca 3826 /* One extra to simplify get_tls_mask. */
951fd09b 3827 bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1;
4ce794b7 3828 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
411e1bfb
AM		 3829 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3830 return FALSE;
3831 }
3832 BFD_ASSERT (rel->r_offset % 8 == 0);
3833 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM		 3834
3835 /* Mark the second slot of a GD or LD entry.
3836 -1 to indicate GD and -2 to indicate LD. */
3837 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3838 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
3839 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3840 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 3841 goto dodyn;
3842
3843 case R_PPC64_TPREL16:
3844 case R_PPC64_TPREL16_LO:
3845 case R_PPC64_TPREL16_HI:
3846 case R_PPC64_TPREL16_HA:
3847 case R_PPC64_TPREL16_DS:
3848 case R_PPC64_TPREL16_LO_DS:
3849 case R_PPC64_TPREL16_HIGHER:
3850 case R_PPC64_TPREL16_HIGHERA:
3851 case R_PPC64_TPREL16_HIGHEST:
3852 case R_PPC64_TPREL16_HIGHESTA:
3853 if (info->shared)
3854 {
3855 info->flags |= DF_STATIC_TLS;
3856 goto dodyn;
5d1634d7
AM		 3857 }
3858 break;
3859
e86ce104 3860 case R_PPC64_ADDR64:
1e2f5b6e 3861 if (opd_sym_map != NULL
e86ce104
AM		 3862 && h != NULL
3863 && h->root.root.string[0] == '.'
3864 && h->root.root.string[1] != 0)
50bc7936 3865 get_fdh ((struct ppc_link_hash_entry *) h, htab);
e86ce104 3866
1e2f5b6e
AM		 3867 if (opd_sym_map != NULL
3868 && h == NULL
3869 && rel + 1 < rel_end
4ce794b7 3870 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e
AM		 3871 {
3872 asection *s;
3873
3874 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3875 r_symndx);
3876 if (s == NULL)
b34976b6 3877 return FALSE;
1e2f5b6e
AM		 3878 else if (s != sec)
3879 opd_sym_map[rel->r_offset / 24] = s;
3880 }
e86ce104
AM		 3881 /* Fall through. */
3882
04c9666a 3883 case R_PPC64_REL30:
5bd4f169 3884 case R_PPC64_REL32:
04c9666a 3885 case R_PPC64_REL64:
65f38f15
AM		 3886 case R_PPC64_ADDR14:
3887 case R_PPC64_ADDR14_BRNTAKEN:
3888 case R_PPC64_ADDR14_BRTAKEN:
3889 case R_PPC64_ADDR16:
3890 case R_PPC64_ADDR16_DS:
3891 case R_PPC64_ADDR16_HA:
3892 case R_PPC64_ADDR16_HI:
3893 case R_PPC64_ADDR16_HIGHER:
3894 case R_PPC64_ADDR16_HIGHERA:
3895 case R_PPC64_ADDR16_HIGHEST:
3896 case R_PPC64_ADDR16_HIGHESTA:
3897 case R_PPC64_ADDR16_LO:
3898 case R_PPC64_ADDR16_LO_DS:
3899 case R_PPC64_ADDR24:
65f38f15 3900 case R_PPC64_ADDR32:
65f38f15
AM		 3901 case R_PPC64_UADDR16:
3902 case R_PPC64_UADDR32:
3903 case R_PPC64_UADDR64:
5bd4f169 3904 case R_PPC64_TOC:
81848ca0
AM		 3905 if (h != NULL && !info->shared)
3906 /* We may need a copy reloc. */
3907 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
3908
41bd81ab 3909 /* Don't propagate .opd relocs. */
1e2f5b6e 3910 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 3911 break;
e86ce104 3912
f4656909
AM		 3913 /* Don't propagate relocs that the dynamic linker won't relocate. */
3914 if ((sec->flags & SEC_ALLOC) == 0)
3915 break;
3916
65f38f15
AM		 3917 /* If we are creating a shared library, and this is a reloc
3918 against a global symbol, or a non PC relative reloc
3919 against a local symbol, then we need to copy the reloc
3920 into the shared library. However, if we are linking with
3921 -Bsymbolic, we do not need to copy a reloc against a
3922 global symbol which is defined in an object we are
3923 including in the link (i.e., DEF_REGULAR is set). At
3924 this point we have not seen all the input files, so it is
3925 possible that DEF_REGULAR is not set now but will be set
3926 later (it is never cleared). In case of a weak definition,
3927 DEF_REGULAR may be cleared later by a strong definition in
3928 a shared library. We account for that possibility below by
f4656909 3929 storing information in the dyn_relocs field of the hash
65f38f15
AM		 3930 table entry. A similar situation occurs when creating
3931 shared libraries and symbol visibility changes render the
3932 symbol local.
3933
3934 If on the other hand, we are creating an executable, we
3935 may need to keep relocations for symbols satisfied by a
3936 dynamic library if we manage to avoid copy relocs for the
3937 symbol. */
411e1bfb 3938 dodyn:
65f38f15 3939 if ((info->shared
411e1bfb 3940 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM		 3941 || (h != NULL
3942 && (! info->symbolic
3943 || h->root.type == bfd_link_hash_defweak
3944 || (h->elf_link_hash_flags
3945 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
f4656909
AM		 3946 || (ELIMINATE_COPY_RELOCS
3947 && !info->shared
65f38f15
AM		 3948 && h != NULL
3949 && (h->root.type == bfd_link_hash_defweak
3950 || (h->elf_link_hash_flags
3951 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
5bd4f169 3952 {
ec338859
AM		 3953 struct ppc_dyn_relocs *p;
3954 struct ppc_dyn_relocs **head;
3955
65f38f15
AM		 3956 /* We must copy these reloc types into the output file.
3957 Create a reloc section in dynobj and make room for
3958 this reloc. */
5bd4f169
AM		 3959 if (sreloc == NULL)
3960 {
3961 const char *name;
65f38f15 3962 bfd *dynobj;
5bd4f169
AM		 3963
3964 name = (bfd_elf_string_from_elf_section
3965 (abfd,
3966 elf_elfheader (abfd)->e_shstrndx,
3967 elf_section_data (sec)->rel_hdr.sh_name));
3968 if (name == NULL)
b34976b6 3969 return FALSE;
5bd4f169 3970
65f38f15
AM		 3971 if (strncmp (name, ".rela", 5) != 0
3972 || strcmp (bfd_get_section_name (abfd, sec),
3973 name + 5) != 0)
3974 {
3975 (*_bfd_error_handler)
3976 (_("%s: bad relocation section name `%s\'"),
3977 bfd_archive_filename (abfd), name);
5d1634d7 3978 bfd_set_error (bfd_error_bad_value);
65f38f15
AM		 3979 }
3980
65f38f15 3981 dynobj = htab->elf.dynobj;
5bd4f169
AM		 3982 sreloc = bfd_get_section_by_name (dynobj, name);
3983 if (sreloc == NULL)
3984 {
3985 flagword flags;
3986
3987 sreloc = bfd_make_section (dynobj, name);
3988 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3989 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3990 if ((sec->flags & SEC_ALLOC) != 0)
3991 flags |= SEC_ALLOC | SEC_LOAD;
3992 if (sreloc == NULL
3993 || ! bfd_set_section_flags (dynobj, sreloc, flags)
65f38f15 3994 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 3995 return FALSE;
5bd4f169 3996 }
65f38f15 3997 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM		 3998 }
3999
65f38f15
AM		 4000 /* If this is a global symbol, we count the number of
4001 relocations we need for this symbol. */
4002 if (h != NULL)
4003 {
ec338859 4004 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM		 4005 }
4006 else
4007 {
ec338859
AM		 4008 /* Track dynamic relocs needed for local syms too.
4009 We really need local syms available to do this
4010 easily. Oh well. */
4011
4012 asection *s;
4013 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4014 sec, r_symndx);
4015 if (s == NULL)
b34976b6 4016 return FALSE;
ec338859
AM		 4017
4018 head = ((struct ppc_dyn_relocs **)
4019 &elf_section_data (s)->local_dynrel);
65f38f15 4020 }
ec338859
AM		 4021
4022 p = *head;
4023 if (p == NULL || p->sec != sec)
4024 {
4ce794b7 4025 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4026 if (p == NULL)
b34976b6 4027 return FALSE;
ec338859
AM		 4028 p->next = *head;
4029 *head = p;
4030 p->sec = sec;
4031 p->count = 0;
4032 p->pc_count = 0;
4033 }
4034
4035 p->count += 1;
411e1bfb 4036 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4037 p->pc_count += 1;
65f38f15 4038 }
5bd4f169 4039 break;
65f38f15
AM		 4040
4041 default:
96e0dda4 4042 break;
5bd4f169
AM		 4043 }
4044 }
4045
b34976b6 4046 return TRUE;
5bd4f169
AM		 4047}
4048
4049/* Return the section that should be marked against GC for a given
4050 relocation. */
4051
4052static asection *
4ce794b7
AM		 4053ppc64_elf_gc_mark_hook (asection *sec,
4054 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4055 Elf_Internal_Rela *rel,
4056 struct elf_link_hash_entry *h,
4057 Elf_Internal_Sym *sym)
5bd4f169 4058{
1e2f5b6e
AM		 4059 asection *rsec = NULL;
4060
5bd4f169
AM		 4061 if (h != NULL)
4062 {
04c9666a 4063 enum elf_ppc64_reloc_type r_type;
1e2f5b6e 4064 struct ppc_link_hash_entry *fdh;
a33d1f77 4065
4ce794b7 4066 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4067 switch (r_type)
5bd4f169
AM		 4068 {
4069 case R_PPC64_GNU_VTINHERIT:
4070 case R_PPC64_GNU_VTENTRY:
4071 break;
4072
4073 default:
4074 switch (h->root.type)
4075 {
4076 case bfd_link_hash_defined:
4077 case bfd_link_hash_defweak:
1e2f5b6e
AM		 4078 fdh = (struct ppc_link_hash_entry *) h;
4079
4080 /* Function descriptor syms cause the associated
4081 function code sym section to be marked. */
4082 if (fdh->is_func_descriptor)
4083 rsec = fdh->oh->root.u.def.section;
4084
4085 /* Function entry syms return NULL if they are in .opd
4086 and are not ._start (or others undefined on the ld
4087 command line). Thus we avoid marking all function
b34976b6 4088 sections, as all functions are referenced in .opd. */
1e2f5b6e
AM		 4089 else if ((fdh->oh != NULL
4090 && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry)
f0abc2a1 4091 || ppc64_elf_section_data (sec)->opd.func_sec == NULL)
1e2f5b6e
AM		 4092 rsec = h->root.u.def.section;
4093 break;
5bd4f169
AM		 4094
4095 case bfd_link_hash_common:
1e2f5b6e
AM		 4096 rsec = h->root.u.c.p->section;
4097 break;
5bd4f169
AM		 4098
4099 default:
4100 break;
4101 }
4102 }
4103 }
4104 else
4105 {
1e2f5b6e
AM		 4106 asection **opd_sym_section;
4107
4108 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
f0abc2a1 4109 opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec;
1e2f5b6e
AM		 4110 if (opd_sym_section != NULL)
4111 rsec = opd_sym_section[sym->st_value / 24];
f0abc2a1 4112 else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL)
1e2f5b6e 4113 rsec = NULL;
5bd4f169
AM		 4114 }
4115
1e2f5b6e 4116 return rsec;
5bd4f169
AM		 4117}
4118
65f38f15
AM		 4119/* Update the .got, .plt. and dynamic reloc reference counts for the
4120 section being removed. */
5bd4f169 4121
b34976b6 4122static bfd_boolean
4ce794b7
AM		 4123ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
4124 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4125{
411e1bfb 4126 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4127 Elf_Internal_Shdr *symtab_hdr;
4128 struct elf_link_hash_entry **sym_hashes;
411e1bfb 4129 struct got_entry **local_got_ents;
5bd4f169 4130 const Elf_Internal_Rela *rel, *relend;
5bd4f169 4131
ec338859
AM		 4132 elf_section_data (sec)->local_dynrel = NULL;
4133
411e1bfb 4134 htab = ppc_hash_table (info);
5bd4f169
AM		 4135 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4136 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 4137 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 4138
4139 relend = relocs + sec->reloc_count;
4140 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 4141 {
4142 unsigned long r_symndx;
04c9666a 4143 enum elf_ppc64_reloc_type r_type;
58ac9f71 4144 struct elf_link_hash_entry *h = NULL;
411e1bfb 4145 char tls_type = 0;
5bd4f169 4146
a33d1f77 4147 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 4148 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 4149 if (r_symndx >= symtab_hdr->sh_info)
4150 {
4151 struct ppc_link_hash_entry *eh;
4152 struct ppc_dyn_relocs **pp;
4153 struct ppc_dyn_relocs *p;
4154
4155 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4156 eh = (struct ppc_link_hash_entry *) h;
4157
4158 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4159 if (p->sec == sec)
4160 {
4161 /* Everything must go for SEC. */
4162 *pp = p->next;
4163 break;
4164 }
4165 }
4166
a33d1f77
AM		 4167 switch (r_type)
4168 {
411e1bfb
AM		 4169 case R_PPC64_GOT_TLSLD16:
4170 case R_PPC64_GOT_TLSLD16_LO:
4171 case R_PPC64_GOT_TLSLD16_HI:
4172 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4173 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 4174 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4175 goto dogot;
4176
4177 case R_PPC64_GOT_TLSGD16:
4178 case R_PPC64_GOT_TLSGD16_LO:
4179 case R_PPC64_GOT_TLSGD16_HI:
4180 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4181 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4182 goto dogot;
4183
4184 case R_PPC64_GOT_TPREL16_DS:
4185 case R_PPC64_GOT_TPREL16_LO_DS:
4186 case R_PPC64_GOT_TPREL16_HI:
4187 case R_PPC64_GOT_TPREL16_HA:
4188 tls_type = TLS_TLS | TLS_TPREL;
4189 goto dogot;
4190
4191 case R_PPC64_GOT_DTPREL16_DS:
4192 case R_PPC64_GOT_DTPREL16_LO_DS:
4193 case R_PPC64_GOT_DTPREL16_HI:
4194 case R_PPC64_GOT_DTPREL16_HA:
4195 tls_type = TLS_TLS | TLS_DTPREL;
4196 goto dogot;
4197
a33d1f77
AM		 4198 case R_PPC64_GOT16:
4199 case R_PPC64_GOT16_DS:
4200 case R_PPC64_GOT16_HA:
4201 case R_PPC64_GOT16_HI:
4202 case R_PPC64_GOT16_LO:
4203 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 4204 dogot:
4205 {
4206 struct got_entry *ent;
4207
58ac9f71
AM		 4208 if (h != NULL)
4209 ent = h->got.glist;
411e1bfb
AM		 4210 else
4211 ent = local_got_ents[r_symndx];
4212
4213 for (; ent != NULL; ent = ent->next)
4214 if (ent->addend == rel->r_addend
e717da7e 4215 && ent->owner == abfd
411e1bfb
AM		 4216 && ent->tls_type == tls_type)
4217 break;
4218 if (ent == NULL)
4219 abort ();
4220 if (ent->got.refcount > 0)
4221 ent->got.refcount -= 1;
4222 }
a33d1f77 4223 break;
65f38f15 4224
a33d1f77
AM		 4225 case R_PPC64_PLT16_HA:
4226 case R_PPC64_PLT16_HI:
4227 case R_PPC64_PLT16_LO:
4228 case R_PPC64_PLT32:
4229 case R_PPC64_PLT64:
721956f4
AM		 4230 case R_PPC64_REL14:
4231 case R_PPC64_REL14_BRNTAKEN:
4232 case R_PPC64_REL14_BRTAKEN:
5d1634d7 4233 case R_PPC64_REL24:
58ac9f71 4234 if (h != NULL)
5d1634d7 4235 {
411e1bfb
AM		 4236 struct plt_entry *ent;
4237
411e1bfb
AM		 4238 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4239 if (ent->addend == rel->r_addend)
4240 break;
4241 if (ent == NULL)
4242 abort ();
4243 if (ent->plt.refcount > 0)
4244 ent->plt.refcount -= 1;
5d1634d7 4245 }
e86ce104 4246 break;
5d1634d7 4247
a33d1f77
AM		 4248 default:
4249 break;
4250 }
4251 }
b34976b6 4252 return TRUE;
5bd4f169
AM		 4253}
4254
e86ce104
AM		 4255/* Called via elf_link_hash_traverse to transfer dynamic linking
4256 information on function code symbol entries to their corresponding
4257 function descriptor symbol entries. */
b34976b6 4258static bfd_boolean
4ce794b7 4259func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 4260{
e86ce104 4261 struct bfd_link_info *info;
65f38f15 4262 struct ppc_link_hash_table *htab;
411e1bfb 4263 struct plt_entry *ent;
50bc7936
AM		 4264 struct ppc_link_hash_entry *fh;
4265 struct ppc_link_hash_entry *fdh;
4266 bfd_boolean force_local;
5bd4f169 4267
50bc7936
AM		 4268 fh = (struct ppc_link_hash_entry *) h;
4269 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 4270 return TRUE;
e86ce104 4271
50bc7936
AM		 4272 if (fh->elf.root.type == bfd_link_hash_warning)
4273 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 4274
4ce794b7 4275 info = inf;
65f38f15 4276 htab = ppc_hash_table (info);
5bd4f169 4277
e86ce104
AM		 4278 /* If this is a function code symbol, transfer dynamic linking
4279 information to the function descriptor symbol. */
50bc7936 4280 if (!fh->is_func)
b34976b6 4281 return TRUE;
e86ce104 4282
50bc7936
AM		 4283 if (fh->elf.root.type == bfd_link_hash_undefweak
4284 && (fh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR))
b34976b6 4285 htab->have_undefweak = TRUE;
805fc799 4286
50bc7936 4287 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 4288 if (ent->plt.refcount > 0)
4289 break;
50bc7936
AM		 4290 if (ent == NULL
4291 || fh->elf.root.root.string[0] != '.'
4292 || fh->elf.root.root.string[1] == '\0')
4293 return TRUE;
5bd4f169 4294
50bc7936
AM		 4295 /* Find the corresponding function descriptor symbol. Create it
4296 as undefined if necessary. */
5bd4f169 4297
50bc7936
AM		 4298 fdh = get_fdh (fh, htab);
4299 if (fdh != NULL)
4300 while (fdh->elf.root.type == bfd_link_hash_indirect
4301 || fdh->elf.root.type == bfd_link_hash_warning)
4302 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 4303
50bc7936
AM		 4304 if (fdh == NULL
4305 && info->shared
4306 && (fh->elf.root.type == bfd_link_hash_undefined
4307 || fh->elf.root.type == bfd_link_hash_undefweak))
4308 {
4309 bfd *abfd;
4310 asymbol *newsym;
4311 struct bfd_link_hash_entry *bh;
4312
4313 abfd = fh->elf.root.u.undef.abfd;
4314 newsym = bfd_make_empty_symbol (abfd);
4315 newsym->name = fh->elf.root.root.string + 1;
4316 newsym->section = bfd_und_section_ptr;
4317 newsym->value = 0;
4318 newsym->flags = BSF_OBJECT;
4319 if (fh->elf.root.type == bfd_link_hash_undefweak)
4320 newsym->flags |= BSF_WEAK;
4321
4322 bh = &fdh->elf.root;
4323 if ( !(_bfd_generic_link_add_one_symbol
4324 (info, abfd, newsym->name, newsym->flags,
4325 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
648cca2c 4326 {
50bc7936 4327 return FALSE;
648cca2c 4328 }
50bc7936
AM		 4329 fdh = (struct ppc_link_hash_entry *) bh;
4330 fdh->elf.elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
4331 fdh->elf.size = 24;
4332 fdh->elf.type = STT_OBJECT;
4333 }
648cca2c 4334
50bc7936
AM		 4335 if (fdh != NULL
4336 && (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
4337 && (info->shared
4338 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4339 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
4340 || (fdh->elf.root.type == bfd_link_hash_undefweak
4341 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
4342 {
4343 if (fdh->elf.dynindx == -1)
4344 if (! bfd_elf64_link_record_dynamic_symbol (info, &fdh->elf))
4345 return FALSE;
4346 fdh->elf.elf_link_hash_flags
4347 |= (fh->elf.elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
4348 | ELF_LINK_HASH_REF_DYNAMIC
4349 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4350 | ELF_LINK_NON_GOT_REF));
4351 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 4352 {
50bc7936
AM		 4353 fdh->elf.plt.plist = fh->elf.plt.plist;
4354 fdh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
e86ce104 4355 }
50bc7936
AM		 4356 fdh->is_func_descriptor = 1;
4357 fdh->oh = &fh->elf;
4358 fh->oh = &fdh->elf;
e86ce104
AM		 4359 }
4360
50bc7936
AM		 4361 /* Now that the info is on the function descriptor, clear the
4362 function code sym info. Any function code syms for which we
4363 don't have a definition in a regular file, we force local.
4364 This prevents a shared library from exporting syms that have
4365 been imported from another library. Function code syms that
4366 are really in the library we must leave global to prevent the
4367 linker dragging in a definition from a static library. */
4368 force_local
4369 = (info->shared
4370 && ((fh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4371 || fdh == NULL
4372 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4373 || (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0));
4374 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
4375
b34976b6 4376 return TRUE;
e86ce104 4377}
40b8271b 4378
82bd7b59
AM		 4379#define MIN_SAVE_FPR 14
4380#define MAX_SAVE_FPR 31
4381
e86ce104 4382/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 4383 this hook to a) provide some gcc support functions, and b) transfer
4384 dynamic linking information gathered so far on function code symbol
4385 entries, to their corresponding function descriptor symbol entries. */
b34976b6 4386static bfd_boolean
4ce794b7
AM		 4387ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
4388 struct bfd_link_info *info)
e86ce104
AM		 4389{
4390 struct ppc_link_hash_table *htab;
82bd7b59
AM		 4391 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
4392 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
4393 unsigned int i;
4394 struct elf_link_hash_entry *h;
721956f4 4395 bfd_byte *p;
82bd7b59 4396 char sym[10];
e86ce104
AM		 4397
4398 htab = ppc_hash_table (info);
82bd7b59
AM		 4399
4400 if (htab->sfpr == NULL)
4401 /* We don't have any relocs. */
b34976b6 4402 return TRUE;
82bd7b59
AM		 4403
4404 /* First provide any missing ._savef* and ._restf* functions. */
4405 memcpy (sym, "._savef14", 10);
4406 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4407 {
4408 sym[7] = i / 10 + '0';
4409 sym[8] = i % 10 + '0';
b34976b6 4410 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4411 if (h != NULL
772119ce 4412 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 4413 {
4414 if (lowest_savef > i)
4415 lowest_savef = i;
4416 h->root.type = bfd_link_hash_defined;
4417 h->root.u.def.section = htab->sfpr;
4418 h->root.u.def.value = (i - lowest_savef) * 4;
4419 h->type = STT_FUNC;
4420 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4421 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 4422 }
4423 }
4424
4425 memcpy (sym, "._restf14", 10);
4426 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4427 {
4428 sym[7] = i / 10 + '0';
4429 sym[8] = i % 10 + '0';
b34976b6 4430 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4431 if (h != NULL
772119ce 4432 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 4433 {
4434 if (lowest_restf > i)
4435 lowest_restf = i;
4436 h->root.type = bfd_link_hash_defined;
4437 h->root.u.def.section = htab->sfpr;
4438 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4439 + (i - lowest_restf) * 4);
4440 h->type = STT_FUNC;
4441 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4442 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 4443 }
4444 }
4445
4ce794b7 4446 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 4447
82bd7b59
AM		 4448 htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4449 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
4450
4451 if (htab->sfpr->_raw_size == 0)
805fc799
AM		 4452 {
4453 if (!htab->have_undefweak)
4454 {
4455 _bfd_strip_section_from_output (info, htab->sfpr);
b34976b6 4456 return TRUE;
805fc799
AM		 4457 }
4458
4459 htab->sfpr->_raw_size = 4;
4460 }
82bd7b59 4461
4ce794b7 4462 p = bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size);
721956f4 4463 if (p == NULL)
b34976b6 4464 return FALSE;
721956f4
AM		 4465 htab->sfpr->contents = p;
4466
4467 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
4468 {
4469 unsigned int fpr = i << 21;
4470 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4471 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
4472 p += 4;
4473 }
4474 if (lowest_savef <= MAX_SAVE_FPR)
4475 {
82bd7b59
AM		 4476 bfd_put_32 (htab->elf.dynobj, BLR, p);
4477 p += 4;
721956f4 4478 }
82bd7b59 4479
721956f4
AM		 4480 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
4481 {
4482 unsigned int fpr = i << 21;
4483 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4484 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
82bd7b59
AM		 4485 p += 4;
4486 }
721956f4
AM		 4487 if (lowest_restf <= MAX_SAVE_FPR
4488 || htab->sfpr->_raw_size == 4)
4489 {
4490 bfd_put_32 (htab->elf.dynobj, BLR, p);
4491 }
82bd7b59 4492
b34976b6 4493 return TRUE;
e86ce104
AM		 4494}
4495
4496/* Adjust a symbol defined by a dynamic object and referenced by a
4497 regular object. The current definition is in some section of the
4498 dynamic object, but we're not including those sections. We have to
4499 change the definition to something the rest of the link can
4500 understand. */
4501
b34976b6 4502static bfd_boolean
4ce794b7
AM		 4503ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4504 struct elf_link_hash_entry *h)
e86ce104
AM		 4505{
4506 struct ppc_link_hash_table *htab;
e86ce104
AM		 4507 asection *s;
4508 unsigned int power_of_two;
4509
4510 htab = ppc_hash_table (info);
4511
4512 /* Deal with function syms. */
4513 if (h->type == STT_FUNC
4514 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4515 {
4516 /* Clear procedure linkage table information for any symbol that
4517 won't need a .plt entry. */
411e1bfb
AM		 4518 struct plt_entry *ent;
4519 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4520 if (ent->plt.refcount > 0)
4521 break;
e86ce104 4522 if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor
411e1bfb 4523 || ent == NULL
9c7a29a3
AM		 4524 || SYMBOL_CALLS_LOCAL (info, h)
4525 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4526 && h->root.type == bfd_link_hash_undefweak))
40b8271b 4527 {
411e1bfb 4528 h->plt.plist = NULL;
40b8271b 4529 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
40b8271b 4530 }
5bd4f169 4531 }
bbd7ec4a 4532 else
411e1bfb 4533 h->plt.plist = NULL;
5bd4f169
AM		 4534
4535 /* If this is a weak symbol, and there is a real definition, the
4536 processor independent code will have arranged for us to see the
4537 real definition first, and we can just use the same value. */
4538 if (h->weakdef != NULL)
4539 {
4540 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
4541 || h->weakdef->root.type == bfd_link_hash_defweak);
4542 h->root.u.def.section = h->weakdef->root.u.def.section;
4543 h->root.u.def.value = h->weakdef->root.u.def.value;
a23b6845
AM		 4544 if (ELIMINATE_COPY_RELOCS)
4545 h->elf_link_hash_flags
4546 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
4547 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
b34976b6 4548 return TRUE;
5bd4f169
AM		 4549 }
4550
5bd4f169
AM		 4551 /* If we are creating a shared library, we must presume that the
4552 only references to the symbol are via the global offset table.
4553 For such cases we need not do anything here; the relocations will
4554 be handled correctly by relocate_section. */
4555 if (info->shared)
b34976b6 4556 return TRUE;
5bd4f169 4557
65f38f15
AM		 4558 /* If there are no references to this symbol that do not use the
4559 GOT, we don't need to generate a copy reloc. */
4560 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
b34976b6 4561 return TRUE;
65f38f15 4562
f4656909 4563 if (ELIMINATE_COPY_RELOCS)
65f38f15 4564 {
f4656909
AM		 4565 struct ppc_link_hash_entry * eh;
4566 struct ppc_dyn_relocs *p;
65f38f15 4567
f4656909
AM		 4568 eh = (struct ppc_link_hash_entry *) h;
4569 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4570 {
4571 s = p->sec->output_section;
4572 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4573 break;
4574 }
4575
4576 /* If we didn't find any dynamic relocs in read-only sections, then
4577 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4578 if (p == NULL)
4579 {
4580 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
4581 return TRUE;
4582 }
65f38f15
AM		 4583 }
4584
5d35169e 4585 if (h->plt.plist != NULL)
97b639ba
AM		 4586 {
4587 /* We should never get here, but unfortunately there are versions
4588 of gcc out there that improperly (for this ABI) put initialized
4589 function pointers, vtable refs and suchlike in read-only
4590 sections. Allow them to proceed, but warn that this might
4591 break at runtime. */
4592 (*_bfd_error_handler)
4593 (_("copy reloc against `%s' requires lazy plt linking; "
4594 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
4595 h->root.root.string);
4596 }
5d35169e
AM		 4597
4598 /* This is a reference to a symbol defined by a dynamic object which
4599 is not a function. */
4600
5bd4f169
AM		 4601 /* We must allocate the symbol in our .dynbss section, which will
4602 become part of the .bss section of the executable. There will be
4603 an entry for this symbol in the .dynsym section. The dynamic
4604 object will contain position independent code, so all references
4605 from the dynamic object to this symbol will go through the global
4606 offset table. The dynamic linker will use the .dynsym entry to
4607 determine the address it must put in the global offset table, so
4608 both the dynamic object and the regular object will refer to the
4609 same memory location for the variable. */
5bd4f169 4610
04c9666a
AM		 4611 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4612 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 4613 runtime process image. We need to remember the offset into the
4614 .rela.bss section we are going to use. */
4615 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4616 {
4ce794b7 4617 htab->relbss->_raw_size += sizeof (Elf64_External_Rela);
5bd4f169
AM		 4618 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
4619 }
4620
4621 /* We need to figure out the alignment required for this symbol. I
4622 have no idea how ELF linkers handle this. */
4623 power_of_two = bfd_log2 (h->size);
4624 if (power_of_two > 4)
4625 power_of_two = 4;
4626
4627 /* Apply the required alignment. */
4ce794b7 4628 s = htab->dynbss;
65f38f15
AM		 4629 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
4630 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 4631 {
65f38f15 4632 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 4633 return FALSE;
5bd4f169
AM		 4634 }
4635
4636 /* Define the symbol as being at this point in the section. */
4637 h->root.u.def.section = s;
4638 h->root.u.def.value = s->_raw_size;
4639
4640 /* Increment the section size to make room for the symbol. */
4641 s->_raw_size += h->size;
4642
b34976b6 4643 return TRUE;
5bd4f169
AM		 4644}
4645
e86ce104
AM		 4646/* If given a function descriptor symbol, hide both the function code
4647 sym and the descriptor. */
4648static void
4ce794b7
AM		 4649ppc64_elf_hide_symbol (struct bfd_link_info *info,
4650 struct elf_link_hash_entry *h,
4651 bfd_boolean force_local)
e86ce104
AM		 4652{
4653 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4654
4655 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
4656 {
721956f4 4657 struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh;
e86ce104 4658
721956f4 4659 if (fh == NULL)
d1329ca3
AM		 4660 {
4661 const char *p, *q;
4662 struct ppc_link_hash_table *htab;
4663 char save;
4664
4665 /* We aren't supposed to use alloca in BFD because on
4666 systems which do not have alloca the version in libiberty
4667 calls xmalloc, which might cause the program to crash
4668 when it runs out of memory. This function doesn't have a
4669 return status, so there's no way to gracefully return an
4670 error. So cheat. We know that string[-1] can be safely
4671 dereferenced; It's either a string in an ELF string
4672 table, or allocated in an objalloc structure. */
4673
4674 p = h->root.root.string - 1;
4675 save = *p;
4676 *(char *) p = '.';
4677 htab = ppc_hash_table (info);
b34976b6 4678 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 4679 *(char *) p = save;
4680
4681 /* Unfortunately, if it so happens that the string we were
4682 looking for was allocated immediately before this string,
4683 then we overwrote the string terminator. That's the only
4684 reason the lookup should fail. */
4685 if (fh == NULL)
4686 {
4687 q = h->root.root.string + strlen (h->root.root.string);
4688 while (q >= h->root.root.string && *q == *p)
4689 --q, --p;
4690 if (q < h->root.root.string && *p == '.')
b34976b6 4691 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 4692 }
4693 if (fh != NULL)
4694 {
4695 ((struct ppc_link_hash_entry *) h)->oh = fh;
4696 ((struct ppc_link_hash_entry *) fh)->oh = h;
4697 }
4698 }
e86ce104
AM		 4699 if (fh != NULL)
4700 _bfd_elf_link_hash_hide_symbol (info, fh, force_local);
4701 }
4702}
4703
411e1bfb 4704static bfd_boolean
4ce794b7
AM		 4705get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp,
4706 asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp,
4707 unsigned long r_symndx, bfd *ibfd)
411e1bfb
AM		 4708{
4709 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4710
4711 if (r_symndx >= symtab_hdr->sh_info)
4712 {
4713 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4714 struct elf_link_hash_entry *h;
4715
4716 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4717 while (h->root.type == bfd_link_hash_indirect
4718 || h->root.type == bfd_link_hash_warning)
4719 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4720
4721 if (hp != NULL)
4722 *hp = h;
4723
4724 if (symp != NULL)
4725 *symp = NULL;
4726
4727 if (symsecp != NULL)
4728 {
4729 asection *symsec = NULL;
4730 if (h->root.type == bfd_link_hash_defined
4731 || h->root.type == bfd_link_hash_defweak)
4732 symsec = h->root.u.def.section;
4733 *symsecp = symsec;
4734 }
4735
e7b938ca 4736 if (tls_maskp != NULL)
411e1bfb
AM		 4737 {
4738 struct ppc_link_hash_entry *eh;
4739
4740 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4741 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 4742 }
4743 }
4744 else
4745 {
4746 Elf_Internal_Sym *sym;
4747 Elf_Internal_Sym *locsyms = *locsymsp;
4748
4749 if (locsyms == NULL)
4750 {
4751 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4752 if (locsyms == NULL)
4753 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4754 symtab_hdr->sh_info,
4755 0, NULL, NULL, NULL);
4756 if (locsyms == NULL)
4757 return FALSE;
4758 *locsymsp = locsyms;
4759 }
4760 sym = locsyms + r_symndx;
4761
4762 if (hp != NULL)
4763 *hp = NULL;
4764
4765 if (symp != NULL)
4766 *symp = sym;
4767
4768 if (symsecp != NULL)
4769 {
4770 asection *symsec = NULL;
4771 if ((sym->st_shndx != SHN_UNDEF
4772 && sym->st_shndx < SHN_LORESERVE)
4773 || sym->st_shndx > SHN_HIRESERVE)
4774 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
4775 *symsecp = symsec;
4776 }
4777
e7b938ca 4778 if (tls_maskp != NULL)
411e1bfb
AM		 4779 {
4780 struct got_entry **lgot_ents;
e7b938ca 4781 char *tls_mask;
411e1bfb 4782
e7b938ca 4783 tls_mask = NULL;
411e1bfb
AM		 4784 lgot_ents = elf_local_got_ents (ibfd);
4785 if (lgot_ents != NULL)
4786 {
e7b938ca
AM		 4787 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
4788 tls_mask = &lgot_masks[r_symndx];
411e1bfb 4789 }
e7b938ca 4790 *tls_maskp = tls_mask;
411e1bfb
AM		 4791 }
4792 }
4793 return TRUE;
4794}
4795
e7b938ca 4796/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 4797 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 4798 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 4799
4800static int
4ce794b7
AM		 4801get_tls_mask (char **tls_maskp, Elf_Internal_Sym **locsymsp,
4802 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 4803{
4804 unsigned long r_symndx;
951fd09b 4805 unsigned int next_r;
411e1bfb
AM		 4806 struct elf_link_hash_entry *h;
4807 Elf_Internal_Sym *sym;
4808 asection *sec;
4809 bfd_vma off;
4810
4811 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 4812 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 4813 return 0;
411e1bfb 4814
e7b938ca 4815 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM		 4816 || sec == NULL
4817 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 4818 return 1;
411e1bfb
AM		 4819
4820 /* Look inside a TOC section too. */
4821 if (h != NULL)
4822 {
4823 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4824 off = h->root.u.def.value;
4825 }
4826 else
4827 off = sym->st_value;
4828 off += rel->r_addend;
4829 BFD_ASSERT (off % 8 == 0);
4830 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 4831 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 4832 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b
AM		 4833 return 0;
4834 if (h == NULL
4835 || h->root.type == bfd_link_hash_defined
4836 || h->root.type == bfd_link_hash_defweak)
4837 {
4838 if (next_r == (unsigned) -1)
4839 return 2;
4840 if (next_r == (unsigned) -2
4841 && (h == NULL
4842 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
4843 return 3;
4844 }
4845 return 1;
411e1bfb
AM		 4846}
4847
b34976b6 4848bfd_boolean
4ce794b7 4849ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info)
1e2f5b6e
AM		 4850{
4851 bfd *ibfd;
1e2f5b6e 4852
411e1bfb 4853 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 4854 {
4855 asection *sec;
4856 Elf_Internal_Rela *relstart, *rel, *relend;
4857 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 4858 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 4859 struct elf_link_hash_entry **sym_hashes;
4860 bfd_vma offset;
d6fe2dc1 4861 bfd_size_type amt;
1e2f5b6e 4862 long *adjust;
b34976b6 4863 bfd_boolean need_edit;
1e2f5b6e
AM		 4864
4865 sec = bfd_get_section_by_name (ibfd, ".opd");
4866 if (sec == NULL)
4867 continue;
4868
d6fe2dc1 4869 amt = sec->_raw_size * sizeof (long) / 24;
f0abc2a1 4870 adjust = ppc64_elf_section_data (sec)->opd.adjust;
d6fe2dc1
AM		 4871 if (adjust == NULL)
4872 {
4873 /* Must be a ld -r link. ie. check_relocs hasn't been
4874 called. */
4ce794b7 4875 adjust = bfd_zalloc (obfd, amt);
f0abc2a1 4876 ppc64_elf_section_data (sec)->opd.adjust = adjust;
d6fe2dc1 4877 }
4ce794b7 4878 memset (adjust, 0, amt);
1e2f5b6e
AM		 4879
4880 if (sec->output_section == bfd_abs_section_ptr)
4881 continue;
4882
4883 /* Look through the section relocs. */
4884 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
4885 continue;
4886
6cdc0ccc 4887 local_syms = NULL;
1e2f5b6e
AM		 4888 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4889 sym_hashes = elf_sym_hashes (ibfd);
4890
4891 /* Read the relocations. */
4ce794b7 4892 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 4893 info->keep_memory);
1e2f5b6e 4894 if (relstart == NULL)
b34976b6 4895 return FALSE;
1e2f5b6e
AM		 4896
4897 /* First run through the relocs to check they are sane, and to
4898 determine whether we need to edit this opd section. */
b34976b6 4899 need_edit = FALSE;
1e2f5b6e
AM		 4900 offset = 0;
4901 relend = relstart + sec->reloc_count;
50bc7936 4902 for (rel = relstart; rel < relend; )
1e2f5b6e 4903 {
04c9666a 4904 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 4905 unsigned long r_symndx;
4906 asection *sym_sec;
4907 struct elf_link_hash_entry *h;
4908 Elf_Internal_Sym *sym;
4909
4910 /* .opd contains a regular array of 24 byte entries. We're
4911 only interested in the reloc pointing to a function entry
4912 point. */
50bc7936
AM		 4913 if (rel->r_offset != offset
4914 || rel + 1 >= relend
4915 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM		 4916 {
4917 /* If someone messes with .opd alignment then after a
4918 "ld -r" we might have padding in the middle of .opd.
4919 Also, there's nothing to prevent someone putting
4920 something silly in .opd with the assembler. No .opd
b34976b6 4921 optimization for them! */
1e2f5b6e
AM		 4922 (*_bfd_error_handler)
4923 (_("%s: .opd is not a regular array of opd entries"),
4924 bfd_archive_filename (ibfd));
b34976b6 4925 need_edit = FALSE;
1e2f5b6e
AM		 4926 break;
4927 }
4928
50bc7936
AM		 4929 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
4930 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
4931 {
4932 (*_bfd_error_handler)
4933 (_("%s: unexpected reloc type %u in .opd section"),
4934 bfd_archive_filename (ibfd), r_type);
4935 need_edit = FALSE;
4936 break;
4937 }
4938
1e2f5b6e 4939 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 4940 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
4941 r_symndx, ibfd))
50bc7936 4942 goto error_ret;
1e2f5b6e
AM		 4943
4944 if (sym_sec == NULL || sym_sec->owner == NULL)
4945 {
411e1bfb
AM		 4946 const char *sym_name;
4947 if (h != NULL)
4948 sym_name = h->root.root.string;
4949 else
4950 sym_name = bfd_elf_local_sym_name (ibfd, sym);
4951
1e2f5b6e
AM		 4952 (*_bfd_error_handler)
4953 (_("%s: undefined sym `%s' in .opd section"),
4954 bfd_archive_filename (ibfd),
411e1bfb 4955 sym_name);
b34976b6 4956 need_edit = FALSE;
1e2f5b6e
AM		 4957 break;
4958 }
4959
51020317
AM		 4960 /* opd entries are always for functions defined in the
4961 current input bfd. If the symbol isn't defined in the
4962 input bfd, then we won't be using the function in this
4963 bfd; It must be defined in a linkonce section in another
4964 bfd, or is weak. It's also possible that we are
4965 discarding the function due to a linker script /DISCARD/,
4966 which we test for via the output_section. */
4967 if (sym_sec->owner != ibfd
4968 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 4969 need_edit = TRUE;
1e2f5b6e
AM		 4970
4971 offset += 24;
50bc7936
AM		 4972 rel += 2;
4973 /* Allow for the possibility of a reloc on the third word. */
4974 if (rel < relend
4975 && rel->r_offset == offset - 8)
4976 rel += 1;
1e2f5b6e
AM		 4977 }
4978
4979 if (need_edit)
4980 {
4981 Elf_Internal_Rela *write_rel;
4982 bfd_byte *rptr, *wptr;
b34976b6 4983 bfd_boolean skip;
1e2f5b6e
AM		 4984
4985 /* This seems a waste of time as input .opd sections are all
4986 zeros as generated by gcc, but I suppose there's no reason
4987 this will always be so. We might start putting something in
4988 the third word of .opd entries. */
4989 if ((sec->flags & SEC_IN_MEMORY) == 0)
4990 {
4991 bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size);
6cdc0ccc 4992 if (loc == NULL
4ce794b7 4993 || !bfd_get_section_contents (ibfd, sec, loc, 0,
6cdc0ccc
AM		 4994 sec->_raw_size))
4995 {
50bc7936 4996 error_ret:
6cdc0ccc
AM		 4997 if (local_syms != NULL
4998 && symtab_hdr->contents != (unsigned char *) local_syms)
4999 free (local_syms);
6cdc0ccc
AM		 5000 if (elf_section_data (sec)->relocs != relstart)
5001 free (relstart);
b34976b6 5002 return FALSE;
6cdc0ccc 5003 }
1e2f5b6e
AM		 5004 sec->contents = loc;
5005 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
5006 }
5007
5008 elf_section_data (sec)->relocs = relstart;
5009
5010 wptr = sec->contents;
5011 rptr = sec->contents;
5012 write_rel = relstart;
b34976b6 5013 skip = FALSE;
1e2f5b6e
AM		 5014 offset = 0;
5015 for (rel = relstart; rel < relend; rel++)
5016 {
50bc7936
AM		 5017 unsigned long r_symndx;
5018 asection *sym_sec;
5019 struct elf_link_hash_entry *h;
5020 Elf_Internal_Sym *sym;
5021
5022 r_symndx = ELF64_R_SYM (rel->r_info);
5023 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
5024 r_symndx, ibfd))
5025 goto error_ret;
5026
1e2f5b6e
AM		 5027 if (rel->r_offset == offset)
5028 {
50bc7936
AM		 5029 struct ppc_link_hash_entry *fdh = NULL;
5030 if (h != NULL)
5031 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
5032 ppc_hash_table (info));
1e2f5b6e 5033
51020317
AM		 5034 skip = (sym_sec->owner != ibfd
5035 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 5036 if (skip)
5037 {
0be617ce 5038 if (h != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 5039 {
5040 /* Arrange for the function descriptor sym
5041 to be dropped. */
d6fe2dc1
AM		 5042 fdh->elf.root.u.def.value = 0;
5043 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7
AM		 5044 }
5045 }
5046 else
1e2f5b6e
AM		 5047 {
5048 /* We'll be keeping this opd entry. */
5049
5050 if (h != NULL)
5051 {
5052 /* Redefine the function descriptor symbol
5053 to this location in the opd section.
5054 We've checked above that opd relocs are
5055 ordered. */
d6fe2dc1 5056 fdh->elf.root.u.def.value = wptr - sec->contents;
1e2f5b6e
AM		 5057 }
5058 else
5059 {
6cdc0ccc
AM		 5060 /* Local syms are a bit tricky. We could
5061 tweak them as they can be cached, but
5062 we'd need to look through the local syms
5063 for the function descriptor sym which we
5064 don't have at the moment. So keep an
b34976b6 5065 array of adjustments. */
7f6a7663 5066 adjust[rel->r_offset / 24] = wptr - rptr;
1e2f5b6e
AM		 5067 }
5068
5069 if (wptr != rptr)
5070 memcpy (wptr, rptr, 24);
5071 wptr += 24;
5072 }
5073 rptr += 24;
5074 offset += 24;
5075 }
5076
50bc7936
AM		 5077 if (skip)
5078 {
5079 BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info)));
5080 if (info->shared)
5081 {
5082 /* We won't be needing dynamic relocs here. */
5083 struct ppc_dyn_relocs **pp;
5084 struct ppc_dyn_relocs *p;
5085
5086 if (h != NULL)
5087 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
5088 else if (sym_sec != NULL)
5089 pp = ((struct ppc_dyn_relocs **)
5090 &elf_section_data (sym_sec)->local_dynrel);
5091 else
5092 pp = ((struct ppc_dyn_relocs **)
5093 &elf_section_data (sec)->local_dynrel);
5094 while ((p = *pp) != NULL)
5095 {
5096 if (p->sec == sec)
5097 {
5098 p->count -= 1;
5099 if (p->count == 0)
5100 *pp = p->next;
5101 break;
5102 }
5103 pp = &p->next;
5104 }
5105 }
5106 }
5107 else
1e2f5b6e 5108 {
50bc7936
AM		 5109 /* We need to adjust any reloc offsets to point to the
5110 new opd entries. While we're at it, we may as well
5111 remove redundant relocs. */
1e2f5b6e
AM		 5112 rel->r_offset += wptr - rptr;
5113 if (write_rel != rel)
5114 memcpy (write_rel, rel, sizeof (*rel));
5115 ++write_rel;
5116 }
5117 }
5118
5119 sec->_cooked_size = wptr - sec->contents;
5120 sec->reloc_count = write_rel - relstart;
cdcf6e38
AM		 5121 /* Fudge the size too, as this is used later in
5122 elf_bfd_final_link if we are emitting relocs. */
5123 elf_section_data (sec)->rel_hdr.sh_size
5124 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
5125 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
1e2f5b6e 5126 }
6cdc0ccc 5127 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 5128 free (relstart);
6cdc0ccc 5129
411e1bfb
AM		 5130 if (local_syms != NULL
5131 && symtab_hdr->contents != (unsigned char *) local_syms)
5132 {
5133 if (!info->keep_memory)
5134 free (local_syms);
5135 else
5136 symtab_hdr->contents = (unsigned char *) local_syms;
5137 }
5138 }
5139
5140 return TRUE;
5141}
5142
951fd09b 5143/* Set htab->tls_sec. */
411e1bfb
AM		 5144
5145bfd_boolean
4ce794b7 5146ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb
AM		 5147{
5148 asection *tls;
411e1bfb
AM		 5149 struct ppc_link_hash_table *htab;
5150
411e1bfb
AM		 5151 for (tls = obfd->sections; tls != NULL; tls = tls->next)
5152 if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD))
5153 == (SEC_THREAD_LOCAL | SEC_LOAD))
5154 break;
411e1bfb
AM		 5155
5156 htab = ppc_hash_table (info);
5157 htab->tls_sec = tls;
a48ebf4d
AM		 5158
5159 if (htab->tls_get_addr != NULL)
5160 {
5161 struct elf_link_hash_entry *h = htab->tls_get_addr;
5162
5163 while (h->root.type == bfd_link_hash_indirect
5164 || h->root.type == bfd_link_hash_warning)
5165 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5166
5167 htab->tls_get_addr = h;
5168 }
5169
951fd09b
AM		 5170 return tls != NULL;
5171}
411e1bfb 5172
951fd09b
AM		 5173/* Run through all the TLS relocs looking for optimization
5174 opportunities. The linker has been hacked (see ppc64elf.em) to do
5175 a preliminary section layout so that we know the TLS segment
5176 offsets. We can't optimize earlier because some optimizations need
5177 to know the tp offset, and we need to optimize before allocating
5178 dynamic relocations. */
5179
5180bfd_boolean
4ce794b7 5181ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 5182{
5183 bfd *ibfd;
5184 asection *sec;
5185 struct ppc_link_hash_table *htab;
5186
1049f94e 5187 if (info->relocatable || info->shared)
411e1bfb
AM		 5188 return TRUE;
5189
951fd09b 5190 htab = ppc_hash_table (info);
411e1bfb
AM		 5191 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5192 {
5193 Elf_Internal_Sym *locsyms = NULL;
5194
5195 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5196 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5197 {
5198 Elf_Internal_Rela *relstart, *rel, *relend;
5199 int expecting_tls_get_addr;
5200
5201 /* Read the relocations. */
4ce794b7 5202 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 5203 info->keep_memory);
411e1bfb
AM		 5204 if (relstart == NULL)
5205 return FALSE;
5206
5207 expecting_tls_get_addr = 0;
5208 relend = relstart + sec->reloc_count;
5209 for (rel = relstart; rel < relend; rel++)
5210 {
5211 enum elf_ppc64_reloc_type r_type;
5212 unsigned long r_symndx;
5213 struct elf_link_hash_entry *h;
5214 Elf_Internal_Sym *sym;
5215 asection *sym_sec;
e7b938ca
AM		 5216 char *tls_mask;
5217 char tls_set, tls_clear, tls_type = 0;
411e1bfb 5218 bfd_vma value;
951fd09b 5219 bfd_boolean ok_tprel, is_local;
411e1bfb
AM		 5220
5221 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5222 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM		 5223 r_symndx, ibfd))
5224 {
5225 err_free_rel:
5226 if (elf_section_data (sec)->relocs != relstart)
5227 free (relstart);
5228 if (locsyms != NULL
5229 && (elf_tdata (ibfd)->symtab_hdr.contents
5230 != (unsigned char *) locsyms))
5231 free (locsyms);
5232 return FALSE;
5233 }
5234
5235 if (h != NULL)
5236 {
5237 if (h->root.type != bfd_link_hash_defined
5238 && h->root.type != bfd_link_hash_defweak)
5239 continue;
5240 value = h->root.u.def.value;
5241 }
5242 else
5243 value = sym->st_value;
951fd09b 5244
411e1bfb 5245 ok_tprel = FALSE;
951fd09b
AM		 5246 is_local = FALSE;
5247 if (h == NULL
5248 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5249 {
951fd09b 5250 is_local = TRUE;
411e1bfb
AM		 5251 value += sym_sec->output_offset;
5252 value += sym_sec->output_section->vma;
5253 value -= htab->tls_sec->vma;
5254 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
5255 < (bfd_vma) 1 << 32);
5256 }
5257
4ce794b7 5258 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM		 5259 switch (r_type)
5260 {
5261 case R_PPC64_GOT_TLSLD16:
5262 case R_PPC64_GOT_TLSLD16_LO:
5263 case R_PPC64_GOT_TLSLD16_HI:
5264 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM		 5265 /* These relocs should never be against a symbol
5266 defined in a shared lib. Leave them alone if
5267 that turns out to be the case. */
e717da7e 5268 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM		 5269 if (!is_local)
5270 continue;
5271
951fd09b
AM		 5272 /* LD -> LE */
5273 tls_set = 0;
5274 tls_clear = TLS_LD;
e7b938ca 5275 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5276 expecting_tls_get_addr = 1;
5277 break;
5278
5279 case R_PPC64_GOT_TLSGD16:
5280 case R_PPC64_GOT_TLSGD16_LO:
5281 case R_PPC64_GOT_TLSGD16_HI:
5282 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5283 if (ok_tprel)
411e1bfb
AM		 5284 /* GD -> LE */
5285 tls_set = 0;
5286 else
5287 /* GD -> IE */
951fd09b
AM		 5288 tls_set = TLS_TLS | TLS_TPRELGD;
5289 tls_clear = TLS_GD;
e7b938ca 5290 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5291 expecting_tls_get_addr = 1;
5292 break;
5293
5294 case R_PPC64_GOT_TPREL16_DS:
5295 case R_PPC64_GOT_TPREL16_LO_DS:
5296 case R_PPC64_GOT_TPREL16_HI:
5297 case R_PPC64_GOT_TPREL16_HA:
5298 expecting_tls_get_addr = 0;
5299 if (ok_tprel)
5300 {
5301 /* IE -> LE */
5302 tls_set = 0;
5303 tls_clear = TLS_TPREL;
e7b938ca 5304 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM		 5305 break;
5306 }
5307 else
5308 continue;
5309
5310 case R_PPC64_REL14:
5311 case R_PPC64_REL14_BRTAKEN:
5312 case R_PPC64_REL14_BRNTAKEN:
5313 case R_PPC64_REL24:
5314 if (h != NULL
5315 && h == htab->tls_get_addr)
5316 {
5317 if (!expecting_tls_get_addr
5318 && rel != relstart
5319 && ((ELF64_R_TYPE (rel[-1].r_info)
5320 == R_PPC64_TOC16)
5321 || (ELF64_R_TYPE (rel[-1].r_info)
5322 == R_PPC64_TOC16_LO)))
5323 {
5324 /* Check for toc tls entries. */
5325 char *toc_tls;
951fd09b 5326 int retval;
411e1bfb 5327
e7b938ca 5328 retval = get_tls_mask (&toc_tls, &locsyms,
951fd09b
AM		 5329 rel - 1, ibfd);
5330 if (retval == 0)
411e1bfb
AM		 5331 goto err_free_rel;
5332 if (toc_tls != NULL)
951fd09b 5333 expecting_tls_get_addr = retval > 1;
411e1bfb
AM		 5334 }
5335
5336 if (expecting_tls_get_addr)
5337 {
5338 struct plt_entry *ent;
5339 for (ent = h->plt.plist; ent; ent = ent->next)
5340 if (ent->addend == 0)
5341 {
5342 if (ent->plt.refcount > 0)
5343 ent->plt.refcount -= 1;
5344 break;
5345 }
5346 }
5347 }
5348 expecting_tls_get_addr = 0;
5349 continue;
5350
5351 case R_PPC64_TPREL64:
5352 expecting_tls_get_addr = 0;
5353 if (ok_tprel)
5354 {
5355 /* IE -> LE */
5356 tls_set = TLS_EXPLICIT;
5357 tls_clear = TLS_TPREL;
5358 break;
5359 }
5360 else
5361 continue;
5362
5363 case R_PPC64_DTPMOD64:
5364 expecting_tls_get_addr = 0;
951fd09b
AM		 5365 if (rel + 1 < relend
5366 && (rel[1].r_info
5367 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
5368 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 5369 {
951fd09b 5370 if (ok_tprel)
411e1bfb 5371 /* GD -> LE */
951fd09b 5372 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM		 5373 else
5374 /* GD -> IE */
951fd09b
AM		 5375 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
5376 tls_clear = TLS_GD;
411e1bfb
AM		 5377 }
5378 else
5379 {
951fd09b
AM		 5380 if (!is_local)
5381 continue;
5382
5383 /* LD -> LE */
5384 tls_set = TLS_EXPLICIT;
5385 tls_clear = TLS_LD;
411e1bfb
AM		 5386 }
5387 break;
5388
5389 default:
5390 expecting_tls_get_addr = 0;
5391 continue;
5392 }
5393
5394 if ((tls_set & TLS_EXPLICIT) == 0)
5395 {
5396 struct got_entry *ent;
5397
5398 /* Adjust got entry for this reloc. */
5399 if (h != NULL)
5400 ent = h->got.glist;
5401 else
5402 ent = elf_local_got_ents (ibfd)[r_symndx];
5403
5404 for (; ent != NULL; ent = ent->next)
5405 if (ent->addend == rel->r_addend
e717da7e 5406 && ent->owner == ibfd
e7b938ca 5407 && ent->tls_type == tls_type)
411e1bfb
AM		 5408 break;
5409 if (ent == NULL)
5410 abort ();
5411
5412 if (tls_set == 0)
5413 {
5414 /* We managed to get rid of a got entry. */
5415 if (ent->got.refcount > 0)
5416 ent->got.refcount -= 1;
5417 }
411e1bfb
AM		 5418 }
5419 else if (h != NULL)
5420 {
5421 struct ppc_link_hash_entry * eh;
5422 struct ppc_dyn_relocs **pp;
5423 struct ppc_dyn_relocs *p;
5424
5425 /* Adjust dynamic relocs. */
5426 eh = (struct ppc_link_hash_entry *) h;
5427 for (pp = &eh->dyn_relocs;
5428 (p = *pp) != NULL;
5429 pp = &p->next)
5430 if (p->sec == sec)
5431 {
5432 /* If we got rid of a DTPMOD/DTPREL reloc
5433 pair then we'll lose one or two dyn
5434 relocs. */
951fd09b 5435 if (tls_set == (TLS_EXPLICIT | TLS_GD))
411e1bfb 5436 p->count -= 1;
951fd09b 5437 p->count -= 1;
411e1bfb
AM		 5438 if (p->count == 0)
5439 *pp = p->next;
5440 break;
5441 }
5442 }
5443
e7b938ca
AM		 5444 *tls_mask |= tls_set;
5445 *tls_mask &= ~tls_clear;
411e1bfb
AM		 5446 }
5447
5448 if (elf_section_data (sec)->relocs != relstart)
5449 free (relstart);
5450 }
5451
5452 if (locsyms != NULL
5453 && (elf_tdata (ibfd)->symtab_hdr.contents
5454 != (unsigned char *) locsyms))
6cdc0ccc
AM		 5455 {
5456 if (!info->keep_memory)
411e1bfb 5457 free (locsyms);
6cdc0ccc 5458 else
411e1bfb 5459 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 5460 }
1e2f5b6e 5461 }
b34976b6 5462 return TRUE;
1e2f5b6e 5463}
b34976b6 5464
65f38f15
AM		 5465/* This is the condition under which ppc64_elf_finish_dynamic_symbol
5466 will be called from elflink.h. If elflink.h doesn't call our
5467 finish_dynamic_symbol routine, we'll need to do something about
5468 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
f4656909 5469#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
65f38f15 5470 ((DYN) \
f4656909 5471 && ((SHARED) \
65f38f15
AM		 5472 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5473 && ((H)->dynindx != -1 \
5474 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5bd4f169 5475
65f38f15
AM		 5476/* Allocate space in .plt, .got and associated reloc sections for
5477 dynamic relocs. */
5bd4f169 5478
b34976b6 5479static bfd_boolean
4ce794b7 5480allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5481{
65f38f15
AM		 5482 struct bfd_link_info *info;
5483 struct ppc_link_hash_table *htab;
5bd4f169 5484 asection *s;
65f38f15
AM		 5485 struct ppc_link_hash_entry *eh;
5486 struct ppc_dyn_relocs *p;
411e1bfb 5487 struct got_entry *gent;
5bd4f169 5488
e92d460e 5489 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5490 return TRUE;
5bd4f169 5491
e92d460e
AM		 5492 if (h->root.type == bfd_link_hash_warning)
5493 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5494
65f38f15
AM		 5495 info = (struct bfd_link_info *) inf;
5496 htab = ppc_hash_table (info);
5bd4f169 5497
65f38f15 5498 if (htab->elf.dynamic_sections_created
411e1bfb 5499 && h->dynindx != -1
9c7a29a3 5500 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 5501 {
411e1bfb
AM		 5502 struct plt_entry *pent;
5503 bfd_boolean doneone = FALSE;
5504 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
5505 if (pent->plt.refcount > 0)
5506 {
5507 BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor);
5508
5509 /* If this is the first .plt entry, make room for the special
5510 first entry. */
4ce794b7 5511 s = htab->plt;
411e1bfb
AM		 5512 if (s->_raw_size == 0)
5513 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
5514
5515 pent->plt.offset = s->_raw_size;
5516
5517 /* Make room for this entry. */
5518 s->_raw_size += PLT_ENTRY_SIZE;
5519
5520 /* Make room for the .glink code. */
4ce794b7 5521 s = htab->glink;
411e1bfb
AM		 5522 if (s->_raw_size == 0)
5523 s->_raw_size += GLINK_CALL_STUB_SIZE;
5524 /* We need bigger stubs past index 32767. */
5525 if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
5526 s->_raw_size += 4;
5527 s->_raw_size += 2*4;
5528
5529 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 5530 s = htab->relplt;
411e1bfb
AM		 5531 s->_raw_size += sizeof (Elf64_External_Rela);
5532 doneone = TRUE;
5533 }
5534 else
5535 pent->plt.offset = (bfd_vma) -1;
5536 if (!doneone)
65f38f15 5537 {
411e1bfb 5538 h->plt.plist = NULL;
65f38f15
AM		 5539 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5540 }
5541 }
5542 else
5543 {
411e1bfb 5544 h->plt.plist = NULL;
65f38f15
AM		 5545 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5546 }
5547
951fd09b
AM		 5548 eh = (struct ppc_link_hash_entry *) h;
5549 /* Run through the TLS GD got entries first if we're changing them
5550 to TPREL. */
e7b938ca 5551 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 5552 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5553 if (gent->got.refcount > 0
5554 && (gent->tls_type & TLS_GD) != 0)
5555 {
5556 /* This was a GD entry that has been converted to TPREL. If
5557 there happens to be a TPREL entry we can use that one. */
5558 struct got_entry *ent;
5559 for (ent = h->got.glist; ent != NULL; ent = ent->next)
5560 if (ent->got.refcount > 0
5561 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 5562 && ent->addend == gent->addend
5563 && ent->owner == gent->owner)
951fd09b
AM		 5564 {
5565 gent->got.refcount = 0;
5566 break;
5567 }
5568
5569 /* If not, then we'll be using our own TPREL entry. */
5570 if (gent->got.refcount != 0)
5571 gent->tls_type = TLS_TLS | TLS_TPREL;
5572 }
5573
411e1bfb
AM		 5574 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5575 if (gent->got.refcount > 0)
5576 {
951fd09b
AM		 5577 bfd_boolean dyn;
5578
411e1bfb 5579 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 5580 Undefined weak syms won't yet be marked as dynamic,
5581 nor will all TLS symbols. */
411e1bfb
AM		 5582 if (h->dynindx == -1
5583 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5584 {
5585 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5586 return FALSE;
5587 }
65f38f15 5588
d881513a
AM		 5589 if ((gent->tls_type & TLS_LD) != 0
5590 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5591 {
e717da7e 5592 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 5593 continue;
411e1bfb 5594 }
951fd09b 5595
e717da7e 5596 s = ppc64_elf_tdata (gent->owner)->got;
951fd09b 5597 gent->got.offset = s->_raw_size;
d881513a
AM		 5598 s->_raw_size
5599 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 5600 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 5601 if ((info->shared
5602 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5603 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5604 || h->root.type != bfd_link_hash_undefweak))
e717da7e 5605 ppc64_elf_tdata (gent->owner)->relgot->_raw_size
e7b938ca 5606 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 5607 ? 2 * sizeof (Elf64_External_Rela)
5608 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 5609 }
5610 else
5611 gent->got.offset = (bfd_vma) -1;
65f38f15 5612
65f38f15 5613 if (eh->dyn_relocs == NULL)
b34976b6 5614 return TRUE;
65f38f15
AM		 5615
5616 /* In the shared -Bsymbolic case, discard space allocated for
5617 dynamic pc-relative relocs against symbols which turn out to be
5618 defined in regular objects. For the normal shared case, discard
5619 space for relocs that have become local due to symbol visibility
5620 changes. */
5621
5622 if (info->shared)
5623 {
9c7a29a3
AM		 5624 /* Relocs that use pc_count are those that appear on a call insn,
5625 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
5626 generated via assembly. We want calls to protected symbols to
5627 resolve directly to the function rather than going via the plt.
5628 If people want function pointer comparisons to work as expected
5629 then they should avoid writing weird assembly. */
09695f56 5630 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 5631 {
5632 struct ppc_dyn_relocs **pp;
5633
5634 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 5635 {
65f38f15
AM		 5636 p->count -= p->pc_count;
5637 p->pc_count = 0;
5638 if (p->count == 0)
5639 *pp = p->next;
5640 else
5641 pp = &p->next;
5bd4f169 5642 }
65f38f15 5643 }
4e795f50
AM		 5644
5645 /* Also discard relocs on undefined weak syms with non-default
5646 visibility. */
5647 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5648 && h->root.type == bfd_link_hash_undefweak)
5649 eh->dyn_relocs = NULL;
65f38f15 5650 }
f4656909 5651 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 5652 {
5653 /* For the non-shared case, discard space for relocs against
5654 symbols which turn out to need copy relocs or are not
5655 dynamic. */
5656
5657 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 5658 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5659 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
65f38f15
AM		 5660 {
5661 /* Make sure this symbol is output as a dynamic symbol.
5662 Undefined weak syms won't yet be marked as dynamic. */
5663 if (h->dynindx == -1
5664 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5665 {
ec338859 5666 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
b34976b6 5667 return FALSE;
65f38f15
AM		 5668 }
5669
5670 /* If that succeeded, we know we'll be keeping all the
5671 relocs. */
5672 if (h->dynindx != -1)
5673 goto keep;
5674 }
5675
5676 eh->dyn_relocs = NULL;
5677
ec338859 5678 keep: ;
65f38f15
AM		 5679 }
5680
5681 /* Finally, allocate space. */
5682 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5683 {
5684 asection *sreloc = elf_section_data (p->sec)->sreloc;
5685 sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
5686 }
5687
b34976b6 5688 return TRUE;
65f38f15
AM		 5689}
5690
5691/* Find any dynamic relocs that apply to read-only sections. */
5692
b34976b6 5693static bfd_boolean
4ce794b7 5694readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 5695{
5696 struct ppc_link_hash_entry *eh;
5697 struct ppc_dyn_relocs *p;
5698
e92d460e
AM		 5699 if (h->root.type == bfd_link_hash_warning)
5700 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5701
65f38f15
AM		 5702 eh = (struct ppc_link_hash_entry *) h;
5703 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5704 {
5705 asection *s = p->sec->output_section;
5706
5707 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5708 {
4ce794b7 5709 struct bfd_link_info *info = inf;
65f38f15
AM		 5710
5711 info->flags |= DF_TEXTREL;
5712
5713 /* Not an error, just cut short the traversal. */
b34976b6 5714 return FALSE;
65f38f15
AM		 5715 }
5716 }
b34976b6 5717 return TRUE;
65f38f15
AM		 5718}
5719
5720/* Set the sizes of the dynamic sections. */
5721
b34976b6 5722static bfd_boolean
4ce794b7
AM		 5723ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5724 struct bfd_link_info *info)
65f38f15
AM		 5725{
5726 struct ppc_link_hash_table *htab;
5727 bfd *dynobj;
5728 asection *s;
b34976b6 5729 bfd_boolean relocs;
65f38f15
AM		 5730 bfd *ibfd;
5731
5732 htab = ppc_hash_table (info);
5733 dynobj = htab->elf.dynobj;
5734 if (dynobj == NULL)
5735 abort ();
5736
5737 if (htab->elf.dynamic_sections_created)
5738 {
5739 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 5740 if (info->executable)
65f38f15
AM		 5741 {
5742 s = bfd_get_section_by_name (dynobj, ".interp");
5743 if (s == NULL)
5744 abort ();
5745 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
5746 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5747 }
5748 }
5749
5750 /* Set up .got offsets for local syms, and space for local dynamic
5751 relocs. */
5752 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5753 {
411e1bfb
AM		 5754 struct got_entry **lgot_ents;
5755 struct got_entry **end_lgot_ents;
e7b938ca 5756 char *lgot_masks;
65f38f15
AM		 5757 bfd_size_type locsymcount;
5758 Elf_Internal_Shdr *symtab_hdr;
5759 asection *srel;
5760
5761 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
5762 continue;
5763
e717da7e
AM		 5764 if (ppc64_tlsld_got (ibfd)->refcount > 0)
5765 {
5766 s = ppc64_elf_tdata (ibfd)->got;
5767 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
5768 s->_raw_size += 16;
5769 if (info->shared)
5770 {
5771 srel = ppc64_elf_tdata (ibfd)->relgot;
5772 srel->_raw_size += sizeof (Elf64_External_Rela);
5773 }
5774 }
5775 else
5776 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
5777
65f38f15
AM		 5778 for (s = ibfd->sections; s != NULL; s = s->next)
5779 {
ec338859 5780 struct ppc_dyn_relocs *p;
65f38f15 5781
ec338859
AM		 5782 for (p = *((struct ppc_dyn_relocs **)
5783 &elf_section_data (s)->local_dynrel);
5784 p != NULL;
5785 p = p->next)
65f38f15 5786 {
ec338859
AM		 5787 if (!bfd_is_abs_section (p->sec)
5788 && bfd_is_abs_section (p->sec->output_section))
5789 {
5790 /* Input section has been discarded, either because
5791 it is a copy of a linkonce section or due to
5792 linker script /DISCARD/, so we'll be discarding
5793 the relocs too. */
5794 }
248866a8 5795 else if (p->count != 0)
ec338859
AM		 5796 {
5797 srel = elf_section_data (p->sec)->sreloc;
5798 srel->_raw_size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 5799 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
5800 info->flags |= DF_TEXTREL;
ec338859 5801 }
65f38f15
AM		 5802 }
5803 }
5804
411e1bfb
AM		 5805 lgot_ents = elf_local_got_ents (ibfd);
5806 if (!lgot_ents)
65f38f15
AM		 5807 continue;
5808
5809 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5810 locsymcount = symtab_hdr->sh_info;
411e1bfb 5811 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 5812 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 5813 s = ppc64_elf_tdata (ibfd)->got;
5814 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 5815 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 5816 {
411e1bfb
AM		 5817 struct got_entry *ent;
5818
5819 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
5820 if (ent->got.refcount > 0)
5821 {
e7b938ca 5822 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 5823 {
e717da7e 5824 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 5825 {
e717da7e 5826 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
411e1bfb
AM		 5827 s->_raw_size += 16;
5828 if (info->shared)
5829 srel->_raw_size += sizeof (Elf64_External_Rela);
5830 }
e717da7e 5831 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM		 5832 }
5833 else
5834 {
5835 ent->got.offset = s->_raw_size;
e7b938ca 5836 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb
AM		 5837 {
5838 s->_raw_size += 16;
5839 if (info->shared)
5840 srel->_raw_size += 2 * sizeof (Elf64_External_Rela);
5841 }
5842 else
5843 {
5844 s->_raw_size += 8;
5845 if (info->shared)
5846 srel->_raw_size += sizeof (Elf64_External_Rela);
5847 }
5848 }
5849 }
5850 else
5851 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 5852 }
5853 }
5854
5855 /* Allocate global sym .plt and .got entries, and space for global
5856 sym dynamic relocs. */
4ce794b7 5857 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM		 5858
5859 /* We now have determined the sizes of the various dynamic sections.
5860 Allocate memory for them. */
b34976b6 5861 relocs = FALSE;
65f38f15
AM		 5862 for (s = dynobj->sections; s != NULL; s = s->next)
5863 {
5864 if ((s->flags & SEC_LINKER_CREATED) == 0)
5865 continue;
5866
411e1bfb
AM		 5867 /* Reset _cooked_size since prelim layout will set it wrongly,
5868 and a non-zero _cooked_size sticks. */
5869 s->_cooked_size = 0;
5870
4ce794b7 5871 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 5872 /* These haven't been allocated yet; don't strip. */
5873 continue;
e717da7e
AM		 5874 else if (s == htab->got
5875 || s == htab->plt
4ce794b7 5876 || s == htab->glink)
65f38f15
AM		 5877 {
5878 /* Strip this section if we don't need it; see the
5879 comment below. */
5bd4f169 5880 }
65f38f15 5881 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169
AM		 5882 {
5883 if (s->_raw_size == 0)
5884 {
5885 /* If we don't need this section, strip it from the
5886 output file. This is mostly to handle .rela.bss and
5887 .rela.plt. We must create both sections in
5888 create_dynamic_sections, because they must be created
5889 before the linker maps input sections to output
5890 sections. The linker does that before
5891 adjust_dynamic_symbol is called, and it is that
5892 function which decides whether anything needs to go
5893 into these sections. */
5bd4f169
AM		 5894 }
5895 else
5896 {
4ce794b7 5897 if (s != htab->relplt)
b34976b6 5898 relocs = TRUE;
5bd4f169
AM		 5899
5900 /* We use the reloc_count field as a counter if we need
5901 to copy relocs into the output file. */
5902 s->reloc_count = 0;
5903 }
5904 }
65f38f15 5905 else
5bd4f169
AM		 5906 {
5907 /* It's not one of our sections, so don't allocate space. */
5908 continue;
5909 }
5910
65f38f15 5911 if (s->_raw_size == 0)
5bd4f169
AM		 5912 {
5913 _bfd_strip_section_from_output (info, s);
5914 continue;
5915 }
5916
5f333394
AM		 5917 /* .plt is in the bss section. We don't initialise it. */
5918 if ((s->flags & SEC_LOAD) == 0)
5919 continue;
5920
65f38f15
AM		 5921 /* Allocate memory for the section contents. We use bfd_zalloc
5922 here in case unused entries are not reclaimed before the
5923 section's contents are written out. This should not happen,
411e1bfb
AM		 5924 but this way if it does we get a R_PPC64_NONE reloc in .rela
5925 sections instead of garbage.
5926 We also rely on the section contents being zero when writing
5927 the GOT. */
4ce794b7 5928 s->contents = bfd_zalloc (dynobj, s->_raw_size);
65f38f15 5929 if (s->contents == NULL)
b34976b6 5930 return FALSE;
5bd4f169
AM		 5931 }
5932
e717da7e
AM		 5933 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5934 {
5935 s = ppc64_elf_tdata (ibfd)->got;
5936 if (s != NULL && s != htab->got)
5937 {
5938 s->_cooked_size = 0;
5939 if (s->_raw_size == 0)
5940 _bfd_strip_section_from_output (info, s);
5941 else
5942 {
5943 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5944 if (s->contents == NULL)
5945 return FALSE;
5946 }
5947 }
5948 s = ppc64_elf_tdata (ibfd)->relgot;
5949 if (s != NULL)
5950 {
5951 s->_cooked_size = 0;
5952 if (s->_raw_size == 0)
5953 _bfd_strip_section_from_output (info, s);
5954 else
5955 {
5956 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5957 if (s->contents == NULL)
5958 return FALSE;
5959 relocs = TRUE;
5960 s->reloc_count = 0;
5961 }
5962 }
5963 }
5964
e86ce104 5965 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 5966 {
5967 /* Add some entries to the .dynamic section. We fill in the
5968 values later, in ppc64_elf_finish_dynamic_sections, but we
5969 must add the entries now so that we get the correct size for
5970 the .dynamic section. The DT_DEBUG entry is filled in by the
5971 dynamic linker and used by the debugger. */
dc810e39 5972#define add_dynamic_entry(TAG, VAL) \
4ce794b7 5973 bfd_elf64_add_dynamic_entry (info, (TAG), (VAL))
dc810e39 5974
36af4a4e 5975 if (info->executable)
5bd4f169 5976 {
dc810e39 5977 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 5978 return FALSE;
5bd4f169
AM		 5979 }
5980
4ce794b7 5981 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5bd4f169 5982 {
dc810e39
AM		 5983 if (!add_dynamic_entry (DT_PLTGOT, 0)
5984 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5985 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 5986 || !add_dynamic_entry (DT_JMPREL, 0)
5987 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 5988 return FALSE;
5bd4f169
AM		 5989 }
5990
19397422
AM		 5991 if (NO_OPD_RELOCS)
5992 {
5993 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
5994 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 5995 return FALSE;
19397422
AM		 5996 }
5997
5bd4f169
AM		 5998 if (relocs)
5999 {
dc810e39
AM		 6000 if (!add_dynamic_entry (DT_RELA, 0)
6001 || !add_dynamic_entry (DT_RELASZ, 0)
6002 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 6003 return FALSE;
5bd4f169 6004
65f38f15
AM		 6005 /* If any dynamic relocs apply to a read-only section,
6006 then we need a DT_TEXTREL entry. */
248866a8 6007 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 6008 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 6009
65f38f15 6010 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 6011 {
65f38f15 6012 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 6013 return FALSE;
5bd4f169 6014 }
5bd4f169 6015 }
5bd4f169 6016 }
65f38f15 6017#undef add_dynamic_entry
5bd4f169 6018
b34976b6 6019 return TRUE;
5bd4f169
AM		 6020}
6021
721956f4 6022/* Determine the type of stub needed, if any, for a call. */
5bd4f169 6023
4ce794b7
AM		 6024static inline enum ppc_stub_type
6025ppc_type_of_stub (asection *input_sec,
6026 const Elf_Internal_Rela *rel,
6027 struct ppc_link_hash_entry **hash,
6028 bfd_vma destination)
5bd4f169 6029{
721956f4
AM		 6030 struct ppc_link_hash_entry *h = *hash;
6031 bfd_vma location;
6032 bfd_vma branch_offset;
6033 bfd_vma max_branch_offset;
4ce794b7 6034 enum elf_ppc64_reloc_type r_type;
5bd4f169 6035
721956f4
AM		 6036 if (h != NULL)
6037 {
6038 if (h->oh != NULL
721956f4 6039 && h->oh->dynindx != -1)
5bd4f169 6040 {
411e1bfb
AM		 6041 struct plt_entry *ent;
6042 for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next)
6043 if (ent->addend == rel->r_addend
6044 && ent->plt.offset != (bfd_vma) -1)
6045 {
6046 *hash = (struct ppc_link_hash_entry *) h->oh;
6047 return ppc_stub_plt_call;
6048 }
5bd4f169
AM		 6049 }
6050
ad8e1ba5
AM		 6051 if (h->elf.root.type != bfd_link_hash_defined
6052 && h->elf.root.type != bfd_link_hash_defweak)
721956f4 6053 return ppc_stub_none;
5d1634d7 6054 }
5d1634d7 6055
721956f4
AM		 6056 /* Determine where the call point is. */
6057 location = (input_sec->output_offset
6058 + input_sec->output_section->vma
6059 + rel->r_offset);
5d1634d7 6060
721956f4
AM		 6061 branch_offset = destination - location;
6062 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 6063
721956f4
AM		 6064 /* Determine if a long branch stub is needed. */
6065 max_branch_offset = 1 << 25;
4ce794b7 6066 if (r_type != R_PPC64_REL24)
721956f4 6067 max_branch_offset = 1 << 15;
5d1634d7 6068
721956f4
AM		 6069 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
6070 /* We need a stub. Figure out whether a long_branch or plt_branch
6071 is needed later. */
6072 return ppc_stub_long_branch;
5d1634d7 6073
721956f4 6074 return ppc_stub_none;
5d1634d7
AM		 6075}
6076
6077/* Build a .plt call stub. */
6078
4ce794b7
AM		 6079static inline bfd_byte *
6080build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM		 6081{
6082#define PPC_LO(v) ((v) & 0xffff)
6083#define PPC_HI(v) (((v) >> 16) & 0xffff)
6084#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6085
5d1634d7 6086 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 6087 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM		 6088 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6089 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6090 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 6091 offset += 8;
6092 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
6093 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6094 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 6095 offset += 8;
6096 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
6097 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6098 bfd_put_32 (obfd, BCTR, p), p += 4;
6099 return p;
6100}
6101
b34976b6 6102static bfd_boolean
4ce794b7 6103ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 6104{
721956f4
AM		 6105 struct ppc_stub_hash_entry *stub_entry;
6106 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 6107 struct bfd_link_info *info;
6108 struct ppc_link_hash_table *htab;
721956f4
AM		 6109 bfd_byte *loc;
6110 bfd_byte *p;
6111 unsigned int indx;
411e1bfb 6112 struct plt_entry *ent;
721956f4
AM		 6113 bfd_vma off;
6114 int size;
5d1634d7 6115
721956f4
AM		 6116 /* Massage our args to the form they really have. */
6117 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 6118 info = in_arg;
5d1634d7 6119
5d1634d7
AM		 6120 htab = ppc_hash_table (info);
6121
721956f4 6122 /* Make a note of the offset within the stubs for this entry. */
97b639ba
AM		 6123 stub_entry->stub_offset = stub_entry->stub_sec->_cooked_size;
6124 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 6125
4ce794b7 6126 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 6127 switch (stub_entry->stub_type)
5d1634d7 6128 {
721956f4 6129 case ppc_stub_long_branch:
ad8e1ba5 6130 case ppc_stub_long_branch_r2off:
721956f4
AM		 6131 /* Branches are relative. This is where we are going to. */
6132 off = (stub_entry->target_value
6133 + stub_entry->target_section->output_offset
6134 + stub_entry->target_section->output_section->vma);
5d1634d7 6135
721956f4
AM		 6136 /* And this is where we are coming from. */
6137 off -= (stub_entry->stub_offset
97b639ba
AM		 6138 + stub_entry->stub_sec->output_offset
6139 + stub_entry->stub_sec->output_section->vma);
e86ce104 6140
ad8e1ba5
AM		 6141 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
6142 size = 4;
6143 else
6144 {
6145 bfd_vma r2off;
6146
6147 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6148 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 6149 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6150 loc += 4;
97b639ba 6151 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6152 loc += 4;
97b639ba 6153 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 6154 loc += 4;
6155 off -= 12;
6156 size = 16;
6157 }
97b639ba 6158 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5
AM		 6159
6160 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
721956f4 6161 break;
e86ce104 6162
721956f4 6163 case ppc_stub_plt_branch:
ad8e1ba5 6164 case ppc_stub_plt_branch_r2off:
721956f4
AM		 6165 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6166 stub_entry->root.string + 9,
b34976b6 6167 FALSE, FALSE);
721956f4
AM		 6168 if (br_entry == NULL)
6169 {
6170 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
6171 stub_entry->root.string + 9);
b34976b6
AM		 6172 htab->stub_error = TRUE;
6173 return FALSE;
721956f4
AM		 6174 }
6175
6176 off = (stub_entry->target_value
6177 + stub_entry->target_section->output_offset
6178 + stub_entry->target_section->output_section->vma);
6179
4ce794b7
AM		 6180 bfd_put_64 (htab->brlt->owner, off,
6181 htab->brlt->contents + br_entry->offset);
721956f4
AM		 6182
6183 if (info->shared)
6184 {
6185 /* Create a reloc for the branch lookup table entry. */
6186 Elf_Internal_Rela rela;
ad8e1ba5 6187 bfd_byte *rl;
5d1634d7 6188
721956f4 6189 rela.r_offset = (br_entry->offset
4ce794b7
AM		 6190 + htab->brlt->output_offset
6191 + htab->brlt->output_section->vma);
721956f4
AM		 6192 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
6193 rela.r_addend = off;
6194
4ce794b7
AM		 6195 rl = htab->relbrlt->contents;
6196 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
6197 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM		 6198 }
6199
6200 off = (br_entry->offset
4ce794b7
AM		 6201 + htab->brlt->output_offset
6202 + htab->brlt->output_section->vma
6203 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 6204 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6205
ad8e1ba5 6206 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 6207 {
6208 (*_bfd_error_handler)
e86ce104 6209 (_("linkage table error against `%s'"),
721956f4 6210 stub_entry->root.string);
5d1634d7 6211 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 6212 htab->stub_error = TRUE;
6213 return FALSE;
5d1634d7 6214 }
41bd81ab 6215
721956f4 6216 indx = off;
ad8e1ba5
AM		 6217 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
6218 {
97b639ba 6219 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6220 loc += 4;
97b639ba 6221 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5
AM		 6222 size = 16;
6223 }
6224 else
6225 {
6226 bfd_vma r2off;
6227
6228 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6229 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 6230 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6231 loc += 4;
97b639ba 6232 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6233 loc += 4;
97b639ba 6234 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 6235 loc += 4;
97b639ba 6236 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6237 loc += 4;
97b639ba 6238 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 6239 size = 28;
6240 }
6241 loc += 4;
97b639ba 6242 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 6243 loc += 4;
97b639ba 6244 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 6245 break;
5d1634d7 6246
721956f4 6247 case ppc_stub_plt_call:
c862ae31
AM		 6248 /* Do the best we can for shared libraries built without
6249 exporting ".foo" for each "foo". This can happen when symbol
6250 versioning scripts strip all bar a subset of symbols. */
6251 if (stub_entry->h->oh->root.type != bfd_link_hash_defined
6252 && stub_entry->h->oh->root.type != bfd_link_hash_defweak)
6253 {
6254 /* Point the symbol at the stub. There may be multiple stubs,
6255 we don't really care; The main thing is to make this sym
8f3bab57
AM		 6256 defined somewhere. Maybe defining the symbol in the stub
6257 section is a silly idea. If we didn't do this, htab->top_id
6258 could disappear. */
c862ae31
AM		 6259 stub_entry->h->oh->root.type = bfd_link_hash_defined;
6260 stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec;
6261 stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset;
6262 }
6263
721956f4 6264 /* Now build the stub. */
411e1bfb
AM		 6265 off = (bfd_vma) -1;
6266 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6267 if (ent->addend == stub_entry->addend)
6268 {
6269 off = ent->plt.offset;
6270 break;
6271 }
721956f4
AM		 6272 if (off >= (bfd_vma) -2)
6273 abort ();
6274
6275 off &= ~ (bfd_vma) 1;
4ce794b7
AM		 6276 off += (htab->plt->output_offset
6277 + htab->plt->output_section->vma
6278 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6279 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6280
ad8e1ba5 6281 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 6282 {
6283 (*_bfd_error_handler)
6284 (_("linkage table error against `%s'"),
6285 stub_entry->h->elf.root.root.string);
6286 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 6287 htab->stub_error = TRUE;
6288 return FALSE;
721956f4
AM		 6289 }
6290
97b639ba 6291 p = build_plt_stub (htab->stub_bfd, loc, off);
721956f4
AM		 6292 size = p - loc;
6293 break;
6294
6295 default:
6296 BFD_FAIL ();
b34976b6 6297 return FALSE;
721956f4
AM		 6298 }
6299
97b639ba
AM		 6300 stub_entry->stub_sec->_cooked_size += size;
6301
6302 if (htab->emit_stub_syms
6303 && !(stub_entry->stub_type == ppc_stub_plt_call
6304 && stub_entry->h->oh->root.type == bfd_link_hash_defined
6305 && stub_entry->h->oh->root.u.def.section == stub_entry->stub_sec
6306 && stub_entry->h->oh->root.u.def.value == stub_entry->stub_offset))
6307 {
6308 struct elf_link_hash_entry *h;
6309 h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string,
6310 TRUE, FALSE, FALSE);
6311 if (h == NULL)
6312 return FALSE;
6313 if (h->root.type == bfd_link_hash_new)
6314 {
6315 h->root.type = bfd_link_hash_defined;
6316 h->root.u.def.section = stub_entry->stub_sec;
6317 h->root.u.def.value = stub_entry->stub_offset;
6318 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
6319 | ELF_LINK_HASH_DEF_REGULAR
6320 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
6321 | ELF_LINK_FORCED_LOCAL);
6322 }
6323 }
6324
b34976b6 6325 return TRUE;
721956f4
AM		 6326}
6327
6328/* As above, but don't actually build the stub. Just bump offset so
6329 we know stub section sizes, and select plt_branch stubs where
6330 long_branch stubs won't do. */
6331
b34976b6 6332static bfd_boolean
4ce794b7 6333ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 6334{
6335 struct ppc_stub_hash_entry *stub_entry;
6336 struct ppc_link_hash_table *htab;
6337 bfd_vma off;
6338 int size;
6339
6340 /* Massage our args to the form they really have. */
6341 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 6342 htab = in_arg;
721956f4
AM		 6343
6344 if (stub_entry->stub_type == ppc_stub_plt_call)
6345 {
411e1bfb 6346 struct plt_entry *ent;
58ac9f71 6347 off = (bfd_vma) -1;
411e1bfb
AM		 6348 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6349 if (ent->addend == stub_entry->addend)
6350 {
6351 off = ent->plt.offset & ~(bfd_vma) 1;
6352 break;
6353 }
58ac9f71 6354 if (off >= (bfd_vma) -2)
411e1bfb 6355 abort ();
4ce794b7
AM		 6356 off += (htab->plt->output_offset
6357 + htab->plt->output_section->vma
6358 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6359 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6360
ad8e1ba5 6361 size = PLT_CALL_STUB_SIZE;
4ce794b7 6362 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM		 6363 size += 4;
6364 }
6365 else
6366 {
ad8e1ba5
AM		 6367 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
6368 variants. */
721956f4
AM		 6369 off = (stub_entry->target_value
6370 + stub_entry->target_section->output_offset
6371 + stub_entry->target_section->output_section->vma);
6372 off -= (stub_entry->stub_sec->_raw_size
6373 + stub_entry->stub_sec->output_offset
6374 + stub_entry->stub_sec->output_section->vma);
6375
ad8e1ba5
AM		 6376 /* Reset the stub type from the plt variant in case we now
6377 can reach with a shorter stub. */
6378 if (stub_entry->stub_type >= ppc_stub_plt_branch)
6379 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
6380
6381 size = 4;
6382 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
6383 {
6384 off -= 12;
6385 size = 16;
6386 }
6387
6388 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 6389 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
6390 {
6391 struct ppc_branch_hash_entry *br_entry;
6392
6393 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6394 stub_entry->root.string + 9,
b34976b6 6395 TRUE, FALSE);
721956f4
AM		 6396 if (br_entry == NULL)
6397 {
6398 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
6399 stub_entry->root.string + 9);
b34976b6
AM		 6400 htab->stub_error = TRUE;
6401 return FALSE;
721956f4
AM		 6402 }
6403
6404 if (br_entry->iter != htab->stub_iteration)
6405 {
6406 br_entry->iter = htab->stub_iteration;
4ce794b7
AM		 6407 br_entry->offset = htab->brlt->_raw_size;
6408 htab->brlt->_raw_size += 8;
721956f4 6409 }
ad8e1ba5
AM		 6410
6411 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 6412 size = 16;
ad8e1ba5
AM		 6413 if (stub_entry->stub_type != ppc_stub_plt_branch)
6414 size = 28;
721956f4
AM		 6415 }
6416 }
6417
6418 stub_entry->stub_sec->_raw_size += size;
b34976b6 6419 return TRUE;
721956f4
AM		 6420}
6421
6422/* Set up various things so that we can make a list of input sections
6423 for each output section included in the link. Returns -1 on error,
cedb70c5 6424 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 6425
6426int
4ce794b7 6427ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
721956f4
AM		 6428{
6429 bfd *input_bfd;
734b6cf9 6430 int top_id, top_index, id;
721956f4 6431 asection *section;
734b6cf9 6432 asection **input_list;
721956f4
AM		 6433 bfd_size_type amt;
6434 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6435
4ce794b7 6436 if (htab->brlt == NULL)
721956f4
AM		 6437 return 0;
6438
1e2f5b6e 6439 /* Find the top input section id. */
3d6f9012 6440 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 6441 input_bfd != NULL;
6442 input_bfd = input_bfd->link_next)
6443 {
721956f4
AM		 6444 for (section = input_bfd->sections;
6445 section != NULL;
6446 section = section->next)
6447 {
6448 if (top_id < section->id)
6449 top_id = section->id;
6450 }
6451 }
721956f4 6452
8f3bab57 6453 htab->top_id = top_id;
721956f4 6454 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 6455 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 6456 if (htab->stub_group == NULL)
6457 return -1;
6458
3d6f9012
AM		 6459 /* Set toc_off for com, und, abs and ind sections. */
6460 for (id = 0; id < 3; id++)
6461 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 6462
3d6f9012 6463 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 6464
6465 /* We can't use output_bfd->section_count here to find the top output
6466 section index as some sections may have been removed, and
6467 _bfd_strip_section_from_output doesn't renumber the indices. */
6468 for (section = output_bfd->sections, top_index = 0;
6469 section != NULL;
6470 section = section->next)
6471 {
6472 if (top_index < section->index)
6473 top_index = section->index;
6474 }
6475
6476 htab->top_index = top_index;
6477 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 6478 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 6479 htab->input_list = input_list;
6480 if (input_list == NULL)
6481 return -1;
6482
721956f4
AM		 6483 return 1;
6484}
6485
e717da7e
AM		 6486/* The linker repeatedly calls this function for each TOC input section
6487 and linker generated GOT section. Group input bfds such that the toc
6488 within a group is less than 64k in size. Will break with cute linker
6489 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 6490
6491void
4ce794b7 6492ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 6493{
6494 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6495
6496 if (!htab->no_multi_toc)
6497 {
6498 bfd_vma addr = isec->output_offset + isec->output_section->vma;
6499 bfd_vma off = addr - htab->toc_curr;
6500 if (off + isec->_raw_size > 0x10000)
6501 {
6502 htab->toc_curr = addr;
6503 htab->multi_toc_needed = 1;
6504 }
6505 elf_gp (isec->owner) = (htab->toc_curr
6506 - elf_gp (isec->output_section->owner)
6507 + TOC_BASE_OFF);
6508 }
6509}
6510
6511/* Called after the last call to the above function. */
6512
6513void
4ce794b7
AM		 6514ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED,
6515 struct bfd_link_info *info)
ad8e1ba5
AM		 6516{
6517 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5
AM		 6518
6519 /* toc_curr tracks the TOC offset used for code sections below in
6520 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 6521 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 6522}
6523
9b5ecbd0
AM		 6524/* No toc references were found in ISEC. If the code in ISEC makes no
6525 calls, then there's no need to use toc adjusting stubs when branching
6526 into ISEC. Actually, indirect calls from ISEC are OK as they will
6527 load r2. */
6528
6529static int
4ce794b7 6530toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0
AM		 6531{
6532 bfd_byte *contents;
6533 bfd_size_type i;
6534 int ret;
6535 int branch_ok;
6536
772119ce
AM		 6537 /* We know none of our code bearing sections will need toc stubs. */
6538 if ((isec->flags & SEC_LINKER_CREATED) != 0)
6539 return 0;
6540
9b5ecbd0
AM		 6541 /* Hack for linux kernel. .fixup contains branches, but only back to
6542 the function that hit an exception. */
6543 branch_ok = strcmp (isec->name, ".fixup") == 0;
6544
6545 contents = elf_section_data (isec)->this_hdr.contents;
6546 if (contents == NULL)
6547 {
6548 contents = bfd_malloc (isec->_raw_size);
6549 if (contents == NULL)
6550 return -1;
6551 if (! bfd_get_section_contents (isec->owner, isec, contents,
e717da7e 6552 0, isec->_raw_size))
9b5ecbd0
AM		 6553 {
6554 free (contents);
6555 return -1;
6556 }
6557 if (info->keep_memory)
6558 elf_section_data (isec)->this_hdr.contents = contents;
6559 }
6560
6561 /* Code scan, because we don't necessarily have relocs on calls to
6562 static functions. */
6563 ret = 0;
6564 for (i = 0; i < isec->_raw_size; i += 4)
6565 {
6566 unsigned long insn = bfd_get_32 (isec->owner, contents + i);
6567 /* Is this a branch? */
772119ce 6568 if ((insn & (0x3f << 26)) == (18 << 26)
9b5ecbd0
AM		 6569 /* If branch and link, it's a function call. */
6570 && ((insn & 1) != 0
6571 /* Sibling calls use a plain branch. I don't know a way
6572 of deciding whether a branch is really a sibling call. */
6573 || !branch_ok))
6574 {
6575 ret = 1;
6576 break;
6577 }
6578 }
6579
6580 if (elf_section_data (isec)->this_hdr.contents != contents)
6581 free (contents);
6582 return ret;
6583}
6584
721956f4
AM		 6585/* The linker repeatedly calls this function for each input section,
6586 in the order that input sections are linked into output sections.
6587 Build lists of input sections to determine groupings between which
6588 we may insert linker stubs. */
6589
9b5ecbd0 6590bfd_boolean
4ce794b7 6591ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 6592{
6593 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9b5ecbd0 6594 int ret;
721956f4 6595
734b6cf9
AM		 6596 if ((isec->output_section->flags & SEC_CODE) != 0
6597 && isec->output_section->index <= htab->top_index)
721956f4 6598 {
734b6cf9 6599 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 6600 /* Steal the link_sec pointer for our list. */
721956f4 6601#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 6602 /* This happens to make the list in reverse order,
6603 which is what we want. */
734b6cf9
AM		 6604 PREV_SEC (isec) = *list;
6605 *list = isec;
721956f4 6606 }
ad8e1ba5
AM		 6607
6608 /* If a code section has a function that uses the TOC then we need
6609 to use the right TOC (obviously). Also, make sure that .opd gets
6610 the correct TOC value. */
6611 if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0)
9b5ecbd0
AM		 6612 {
6613 if (elf_gp (isec->owner) != 0)
6614 htab->toc_curr = elf_gp (isec->owner);
6615 }
6616 else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0)
6617 return FALSE;
6618 else
6619 isec->has_gp_reloc = ret;
ad8e1ba5
AM		 6620
6621 /* Functions that don't use the TOC can belong in any TOC group.
6622 Use the last TOC base. This happens to make _init and _fini
6623 pasting work. */
6624 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 6625 return TRUE;
721956f4
AM		 6626}
6627
6628/* See whether we can group stub sections together. Grouping stub
6629 sections may result in fewer stubs. More importantly, we need to
6630 put all .init* and .fini* stubs at the beginning of the .init or
6631 .fini output sections respectively, because glibc splits the
6632 _init and _fini functions into multiple parts. Putting a stub in
6633 the middle of a function is not a good idea. */
6634
6635static void
4ce794b7
AM		 6636group_sections (struct ppc_link_hash_table *htab,
6637 bfd_size_type stub_group_size,
6638 bfd_boolean stubs_always_before_branch)
721956f4 6639{
734b6cf9
AM		 6640 asection **list = htab->input_list + htab->top_index;
6641 do
721956f4 6642 {
734b6cf9
AM		 6643 asection *tail = *list;
6644 while (tail != NULL)
721956f4 6645 {
734b6cf9
AM		 6646 asection *curr;
6647 asection *prev;
6648 bfd_size_type total;
6649 bfd_boolean big_sec;
6650 bfd_vma curr_toc;
6651
6652 curr = tail;
6653 if (tail->_cooked_size)
6654 total = tail->_cooked_size;
6655 else
6656 total = tail->_raw_size;
6657 big_sec = total >= stub_group_size;
6658 curr_toc = htab->stub_group[tail->id].toc_off;
6659
6660 while ((prev = PREV_SEC (curr)) != NULL
6661 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM		 6662 < stub_group_size)
6663 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 6664 curr = prev;
6665
6666 /* OK, the size from the start of CURR to the end is less
6667 than stub_group_size and thus can be handled by one stub
6668 section. (or the tail section is itself larger than
6669 stub_group_size, in which case we may be toast.) We
6670 should really be keeping track of the total size of stubs
6671 added here, as stubs contribute to the final output
6672 section size. That's a little tricky, and this way will
6673 only break if stubs added make the total size more than
6674 2^25, ie. for the default stub_group_size, if stubs total
6675 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6676 do
721956f4
AM		 6677 {
6678 prev = PREV_SEC (tail);
734b6cf9 6679 /* Set up this stub group. */
721956f4
AM		 6680 htab->stub_group[tail->id].link_sec = curr;
6681 }
734b6cf9
AM		 6682 while (tail != curr && (tail = prev) != NULL);
6683
6684 /* But wait, there's more! Input sections up to stub_group_size
6685 bytes before the stub section can be handled by it too.
6686 Don't do this if we have a really large section after the
6687 stubs, as adding more stubs increases the chance that
6688 branches may not reach into the stub section. */
6689 if (!stubs_always_before_branch && !big_sec)
6690 {
6691 total = 0;
6692 while (prev != NULL
6693 && ((total += tail->output_offset - prev->output_offset)
6694 < stub_group_size)
6695 && htab->stub_group[prev->id].toc_off == curr_toc)
6696 {
6697 tail = prev;
6698 prev = PREV_SEC (tail);
6699 htab->stub_group[tail->id].link_sec = curr;
6700 }
6701 }
6702 tail = prev;
721956f4
AM		 6703 }
6704 }
734b6cf9
AM		 6705 while (list-- != htab->input_list);
6706 free (htab->input_list);
721956f4
AM		 6707#undef PREV_SEC
6708}
6709
721956f4
AM		 6710/* Determine and set the size of the stub section for a final link.
6711
6712 The basic idea here is to examine all the relocations looking for
6713 PC-relative calls to a target that is unreachable with a "bl"
6714 instruction. */
6715
b34976b6 6716bfd_boolean
4ce794b7 6717ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 6718 struct bfd_link_info *info,
6719 bfd_signed_vma group_size,
6720 asection *(*add_stub_section) (const char *, asection *),
6721 void (*layout_sections_again) (void))
721956f4
AM		 6722{
6723 bfd_size_type stub_group_size;
b34976b6 6724 bfd_boolean stubs_always_before_branch;
721956f4
AM		 6725 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6726
6727 /* Stash our params away. */
721956f4
AM		 6728 htab->add_stub_section = add_stub_section;
6729 htab->layout_sections_again = layout_sections_again;
6730 stubs_always_before_branch = group_size < 0;
6731 if (group_size < 0)
6732 stub_group_size = -group_size;
6733 else
6734 stub_group_size = group_size;
6735 if (stub_group_size == 1)
6736 {
6737 /* Default values. */
58ac9f71
AM		 6738 if (stubs_always_before_branch)
6739 {
6740 stub_group_size = 0x1e00000;
6741 if (htab->has_14bit_branch)
6742 stub_group_size = 0x7800;
6743 }
6744 else
6745 {
6746 stub_group_size = 0x1c00000;
6747 if (htab->has_14bit_branch)
6748 stub_group_size = 0x7000;
6749 }
721956f4
AM		 6750 }
6751
6752 group_sections (htab, stub_group_size, stubs_always_before_branch);
6753
721956f4
AM		 6754 while (1)
6755 {
6756 bfd *input_bfd;
6757 unsigned int bfd_indx;
6758 asection *stub_sec;
b34976b6 6759 bfd_boolean stub_changed;
721956f4
AM		 6760
6761 htab->stub_iteration += 1;
b34976b6 6762 stub_changed = FALSE;
721956f4
AM		 6763
6764 for (input_bfd = info->input_bfds, bfd_indx = 0;
6765 input_bfd != NULL;
6766 input_bfd = input_bfd->link_next, bfd_indx++)
6767 {
6768 Elf_Internal_Shdr *symtab_hdr;
6769 asection *section;
6cdc0ccc 6770 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM		 6771
6772 /* We'll need the symbol table in a second. */
6773 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6774 if (symtab_hdr->sh_info == 0)
6775 continue;
6776
721956f4
AM		 6777 /* Walk over each section attached to the input bfd. */
6778 for (section = input_bfd->sections;
6779 section != NULL;
6780 section = section->next)
6781 {
721956f4 6782 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 6783
6784 /* If there aren't any relocs, then there's nothing more
6785 to do. */
6786 if ((section->flags & SEC_RELOC) == 0
6787 || section->reloc_count == 0)
6788 continue;
6789
6790 /* If this section is a link-once section that will be
6791 discarded, then don't create any stubs. */
6792 if (section->output_section == NULL
6793 || section->output_section->owner != output_bfd)
6794 continue;
6795
1e2f5b6e
AM		 6796 /* Get the relocs. */
6797 internal_relocs
4ce794b7 6798 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 6799 info->keep_memory);
721956f4 6800 if (internal_relocs == NULL)
1e2f5b6e 6801 goto error_ret_free_local;
721956f4
AM		 6802
6803 /* Now examine each relocation. */
6804 irela = internal_relocs;
6805 irelaend = irela + section->reloc_count;
6806 for (; irela < irelaend; irela++)
6807 {
4ce794b7
AM		 6808 enum elf_ppc64_reloc_type r_type;
6809 unsigned int r_indx;
721956f4
AM		 6810 enum ppc_stub_type stub_type;
6811 struct ppc_stub_hash_entry *stub_entry;
6812 asection *sym_sec;
6813 bfd_vma sym_value;
6814 bfd_vma destination;
6815 struct ppc_link_hash_entry *hash;
411e1bfb
AM		 6816 struct elf_link_hash_entry *h;
6817 Elf_Internal_Sym *sym;
721956f4
AM		 6818 char *stub_name;
6819 const asection *id_sec;
6820
6821 r_type = ELF64_R_TYPE (irela->r_info);
6822 r_indx = ELF64_R_SYM (irela->r_info);
6823
4ce794b7 6824 if (r_type >= R_PPC64_max)
721956f4
AM		 6825 {
6826 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 6827 goto error_ret_free_internal;
721956f4
AM		 6828 }
6829
6830 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 6831 if (r_type != R_PPC64_REL24
6832 && r_type != R_PPC64_REL14
6833 && r_type != R_PPC64_REL14_BRTAKEN
6834 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 6835 continue;
6836
6837 /* Now determine the call target, its name, value,
6838 section. */
721956f4 6839 destination = 0;
411e1bfb
AM		 6840 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6841 r_indx, input_bfd))
6842 goto error_ret_free_internal;
6843 hash = (struct ppc_link_hash_entry *) h;
6844
6845 if (hash == NULL)
721956f4
AM		 6846 {
6847 /* It's a local symbol. */
411e1bfb 6848 sym_value = sym->st_value;
721956f4
AM		 6849 destination = (sym_value + irela->r_addend
6850 + sym_sec->output_offset
6851 + sym_sec->output_section->vma);
6852 }
6853 else
6854 {
6855 /* It's an external symbol. */
411e1bfb 6856 sym_value = 0;
721956f4
AM		 6857 if (hash->elf.root.type == bfd_link_hash_defined
6858 || hash->elf.root.type == bfd_link_hash_defweak)
6859 {
721956f4
AM		 6860 sym_value = hash->elf.root.u.def.value;
6861 if (sym_sec->output_section != NULL)
6862 destination = (sym_value + irela->r_addend
6863 + sym_sec->output_offset
6864 + sym_sec->output_section->vma);
6865 }
6866 else if (hash->elf.root.type == bfd_link_hash_undefweak)
6867 ;
6868 else if (hash->elf.root.type == bfd_link_hash_undefined)
6869 ;
6870 else
6871 {
6872 bfd_set_error (bfd_error_bad_value);
6873 goto error_ret_free_internal;
6874 }
6875 }
6876
6877 /* Determine what (if any) linker stub is needed. */
6878 stub_type = ppc_type_of_stub (section, irela, &hash,
6879 destination);
ad8e1ba5
AM		 6880
6881 if (stub_type != ppc_stub_plt_call)
6882 {
6883 /* Check whether we need a TOC adjusting stub.
6884 Since the linker pastes together pieces from
6885 different object files when creating the
6886 _init and _fini functions, it may be that a
6887 call to what looks like a local sym is in
6888 fact a call needing a TOC adjustment. */
6889 if (sym_sec != NULL
6890 && sym_sec->output_section != NULL
6891 && (htab->stub_group[sym_sec->id].toc_off
9b5ecbd0
AM		 6892 != htab->stub_group[section->id].toc_off)
6893 && sym_sec->has_gp_reloc
6894 && section->has_gp_reloc)
ad8e1ba5
AM		 6895 stub_type = ppc_stub_long_branch_r2off;
6896 }
6897
721956f4
AM		 6898 if (stub_type == ppc_stub_none)
6899 continue;
6900
411e1bfb
AM		 6901 /* __tls_get_addr calls might be eliminated. */
6902 if (stub_type != ppc_stub_plt_call
6903 && hash != NULL
6904 && &hash->elf == htab->tls_get_addr
6905 && section->has_tls_reloc
6906 && irela != internal_relocs)
6907 {
6908 /* Get tls info. */
e7b938ca 6909 char *tls_mask;
411e1bfb 6910
e7b938ca 6911 if (!get_tls_mask (&tls_mask, &local_syms,
411e1bfb
AM		 6912 irela - 1, input_bfd))
6913 goto error_ret_free_internal;
e7b938ca 6914 if (*tls_mask != 0)
411e1bfb
AM		 6915 continue;
6916 }
6917
721956f4
AM		 6918 /* Support for grouping stub sections. */
6919 id_sec = htab->stub_group[section->id].link_sec;
6920
6921 /* Get the name of this stub. */
6922 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
6923 if (!stub_name)
6924 goto error_ret_free_internal;
6925
6926 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 6927 stub_name, FALSE, FALSE);
721956f4
AM		 6928 if (stub_entry != NULL)
6929 {
6930 /* The proper stub has already been created. */
6931 free (stub_name);
6932 continue;
6933 }
6934
6935 stub_entry = ppc_add_stub (stub_name, section, htab);
6936 if (stub_entry == NULL)
6937 {
6938 free (stub_name);
6cdc0ccc
AM		 6939 error_ret_free_internal:
6940 if (elf_section_data (section)->relocs == NULL)
6941 free (internal_relocs);
6942 error_ret_free_local:
6943 if (local_syms != NULL
6944 && (symtab_hdr->contents
6945 != (unsigned char *) local_syms))
6946 free (local_syms);
b34976b6 6947 return FALSE;
721956f4
AM		 6948 }
6949
ad8e1ba5 6950 stub_entry->stub_type = stub_type;
721956f4
AM		 6951 stub_entry->target_value = sym_value;
6952 stub_entry->target_section = sym_sec;
721956f4 6953 stub_entry->h = hash;
411e1bfb 6954 stub_entry->addend = irela->r_addend;
b34976b6 6955 stub_changed = TRUE;
721956f4
AM		 6956 }
6957
6958 /* We're done with the internal relocs, free them. */
6cdc0ccc 6959 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 6960 free (internal_relocs);
721956f4 6961 }
6cdc0ccc
AM		 6962
6963 if (local_syms != NULL
6964 && symtab_hdr->contents != (unsigned char *) local_syms)
6965 {
6966 if (!info->keep_memory)
6967 free (local_syms);
6968 else
6969 symtab_hdr->contents = (unsigned char *) local_syms;
6970 }
721956f4
AM		 6971 }
6972
6973 if (!stub_changed)
6974 break;
6975
6976 /* OK, we've added some stubs. Find out the new size of the
6977 stub sections. */
6978 for (stub_sec = htab->stub_bfd->sections;
6979 stub_sec != NULL;
6980 stub_sec = stub_sec->next)
e717da7e
AM		 6981 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
6982 {
6983 stub_sec->_raw_size = 0;
6984 stub_sec->_cooked_size = 0;
6985 }
4ce794b7
AM		 6986 htab->brlt->_raw_size = 0;
6987 htab->brlt->_cooked_size = 0;
721956f4
AM		 6988
6989 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab);
6990
6991 /* Ask the linker to do its stuff. */
6992 (*htab->layout_sections_again) ();
6993 }
6994
afbe61cf
AM		 6995 /* It would be nice to strip .branch_lt from the output if the
6996 section is empty, but it's too late. If we strip sections here,
6997 the dynamic symbol table is corrupted since the section symbol
6998 for the stripped section isn't written. */
721956f4 6999
b34976b6 7000 return TRUE;
721956f4
AM		 7001}
7002
7003/* Called after we have determined section placement. If sections
805fc799 7004 move, we'll be called again. Provide a value for TOCstart. */
721956f4 7005
805fc799 7006bfd_vma
4ce794b7 7007ppc64_elf_toc (bfd *obfd)
721956f4 7008{
805fc799
AM		 7009 asection *s;
7010 bfd_vma TOCstart;
721956f4 7011
805fc799
AM		 7012 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
7013 order. The TOC starts where the first of these sections starts. */
7014 s = bfd_get_section_by_name (obfd, ".got");
7015 if (s == NULL)
7016 s = bfd_get_section_by_name (obfd, ".toc");
7017 if (s == NULL)
7018 s = bfd_get_section_by_name (obfd, ".tocbss");
7019 if (s == NULL)
7020 s = bfd_get_section_by_name (obfd, ".plt");
7021 if (s == NULL)
7022 {
7023 /* This may happen for
7024 o references to TOC base (SYM@toc / TOC[tc0]) without a
7025 .toc directive
7026 o bad linker script
7027 o --gc-sections and empty TOC sections
7028
7029 FIXME: Warn user? */
7030
7031 /* Look for a likely section. We probably won't even be
7032 using TOCstart. */
7033 for (s = obfd->sections; s != NULL; s = s->next)
7034 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
7035 == (SEC_ALLOC | SEC_SMALL_DATA))
7036 break;
721956f4 7037 if (s == NULL)
805fc799
AM		 7038 for (s = obfd->sections; s != NULL; s = s->next)
7039 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
7040 == (SEC_ALLOC | SEC_SMALL_DATA))
7041 break;
721956f4 7042 if (s == NULL)
805fc799
AM		 7043 for (s = obfd->sections; s != NULL; s = s->next)
7044 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
7045 break;
721956f4 7046 if (s == NULL)
805fc799
AM		 7047 for (s = obfd->sections; s != NULL; s = s->next)
7048 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
7049 break;
7050 }
721956f4 7051
805fc799
AM		 7052 TOCstart = 0;
7053 if (s != NULL)
7054 TOCstart = s->output_section->vma + s->output_offset;
721956f4 7055
805fc799 7056 return TOCstart;
721956f4
AM		 7057}
7058
7059/* Build all the stubs associated with the current output file.
7060 The stubs are kept in a hash table attached to the main linker
7061 hash table. This function is called via gldelf64ppc_finish. */
7062
b34976b6 7063bfd_boolean
4ce794b7
AM		 7064ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
7065 struct bfd_link_info *info,
7066 char **stats)
5d1634d7
AM		 7067{
7068 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 7069 asection *stub_sec;
5d1634d7 7070 bfd_byte *p;
e717da7e 7071 int stub_sec_count = 0;
5d1634d7 7072
ad8e1ba5 7073 htab->emit_stub_syms = emit_stub_syms;
721956f4
AM		 7074 for (stub_sec = htab->stub_bfd->sections;
7075 stub_sec != NULL;
7076 stub_sec = stub_sec->next)
e717da7e
AM		 7077 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7078 {
7079 bfd_size_type size;
721956f4 7080
e717da7e
AM		 7081 /* Allocate memory to hold the linker stubs. */
7082 size = stub_sec->_raw_size;
7083 if (size != 0)
7084 {
7085 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
7086 if (stub_sec->contents == NULL)
7087 return FALSE;
7088 }
7089 stub_sec->_cooked_size = 0;
7090 }
5d1634d7 7091
4ce794b7 7092 if (htab->plt != NULL)
5d1634d7 7093 {
9f951329 7094 unsigned int indx;
ad8e1ba5 7095 bfd_vma plt0;
9f951329 7096
721956f4 7097 /* Build the .glink plt call stub. */
4ce794b7
AM		 7098 plt0 = (htab->plt->output_section->vma
7099 + htab->plt->output_offset
7100 - (htab->glink->output_section->vma
7101 + htab->glink->output_offset
ad8e1ba5
AM		 7102 + GLINK_CALL_STUB_SIZE));
7103 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 7104 {
ad8e1ba5
AM		 7105 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
7106 bfd_set_error (bfd_error_bad_value);
7107 return FALSE;
721956f4 7108 }
721956f4 7109
97b639ba
AM		 7110 if (htab->emit_stub_syms)
7111 {
7112 struct elf_link_hash_entry *h;
7113 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
7114 if (h == NULL)
7115 return FALSE;
7116 if (h->root.type == bfd_link_hash_new)
7117 {
7118 h->root.type = bfd_link_hash_defined;
7119 h->root.u.def.section = htab->glink;
7120 h->root.u.def.value = 0;
7121 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
7122 | ELF_LINK_HASH_DEF_REGULAR
7123 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
7124 | ELF_LINK_FORCED_LOCAL);
7125 }
7126 }
4ce794b7
AM		 7127 p = htab->glink->contents;
7128 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 7129 p += 4;
4ce794b7 7130 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 7131 p += 4;
4ce794b7 7132 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 7133 p += 4;
4ce794b7 7134 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7135 p += 4;
4ce794b7 7136 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 7137 p += 4;
4ce794b7 7138 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 7139 p += 4;
4ce794b7 7140 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 7141 p += 4;
4ce794b7 7142 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7143 p += 4;
4ce794b7 7144 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 7145 p += 4;
4ce794b7 7146 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 7147 p += 4;
4ce794b7 7148 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 7149 p += 4;
4ce794b7 7150 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 7151 p += 4;
4ce794b7 7152 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 7153 p += 4;
4ce794b7 7154 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 7155 p += 4;
4ce794b7 7156 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 7157 p += 4;
4ce794b7 7158 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM		 7159 p += 4;
7160
9f951329
AM		 7161 /* Build the .glink lazy link call stubs. */
7162 indx = 0;
4ce794b7 7163 while (p < htab->glink->contents + htab->glink->_raw_size)
9f951329
AM		 7164 {
7165 if (indx < 0x8000)
7166 {
4ce794b7 7167 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 7168 p += 4;
7169 }
7170 else
7171 {
4ce794b7 7172 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 7173 p += 4;
4ce794b7 7174 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 7175 p += 4;
7176 }
4ce794b7
AM		 7177 bfd_put_32 (htab->glink->owner,
7178 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 7179 indx++;
9f951329
AM		 7180 p += 4;
7181 }
4ce794b7 7182 htab->glink->_cooked_size = p - htab->glink->contents;
5d1634d7 7183 }
5d1634d7 7184
4ce794b7 7185 if (htab->brlt->_raw_size != 0)
721956f4 7186 {
4ce794b7
AM		 7187 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
7188 htab->brlt->_raw_size);
7189 if (htab->brlt->contents == NULL)
b34976b6 7190 return FALSE;
721956f4 7191 }
5d1634d7 7192
721956f4
AM		 7193 /* Build the stubs as directed by the stub hash table. */
7194 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 7195
721956f4
AM		 7196 for (stub_sec = htab->stub_bfd->sections;
7197 stub_sec != NULL;
7198 stub_sec = stub_sec->next)
e717da7e
AM		 7199 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7200 {
7201 stub_sec_count += 1;
7202 if (stub_sec->_raw_size != stub_sec->_cooked_size)
7203 break;
7204 }
5d1634d7 7205
721956f4 7206 if (stub_sec != NULL
4ce794b7 7207 || htab->glink->_raw_size != htab->glink->_cooked_size)
5d1634d7 7208 {
b34976b6 7209 htab->stub_error = TRUE;
721956f4 7210 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 7211 }
721956f4 7212
d2a300cf
AM		 7213 if (htab->stub_error)
7214 return FALSE;
7215
7216 if (stats != NULL)
7217 {
7218 *stats = bfd_malloc (500);
7219 if (*stats == NULL)
7220 return FALSE;
7221
7222 sprintf (*stats, _("linker stubs in %u groups\n"
7223 " branch %lu\n"
7224 " toc adjust %lu\n"
7225 " long branch %lu\n"
7226 " long toc adj %lu\n"
7227 " plt call %lu"),
e717da7e 7228 stub_sec_count,
4ce794b7
AM		 7229 htab->stub_count[ppc_stub_long_branch - 1],
7230 htab->stub_count[ppc_stub_long_branch_r2off - 1],
7231 htab->stub_count[ppc_stub_plt_branch - 1],
7232 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
7233 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 7234 }
7235 return TRUE;
5bd4f169
AM		 7236}
7237
5bd4f169
AM		 7238/* The RELOCATE_SECTION function is called by the ELF backend linker
7239 to handle the relocations for a section.
7240
7241 The relocs are always passed as Rela structures; if the section
7242 actually uses Rel structures, the r_addend field will always be
7243 zero.
7244
7245 This function is responsible for adjust the section contents as
7246 necessary, and (if using Rela relocs and generating a
1049f94e 7247 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 7248 necessary.
7249
7250 This function does not have to worry about setting the reloc
7251 address or the reloc symbol index.
7252
7253 LOCAL_SYMS is a pointer to the swapped in local symbols.
7254
7255 LOCAL_SECTIONS is an array giving the section in the input file
7256 corresponding to the st_shndx field of each local symbol.
7257
7258 The global hash table entry for the global symbols can be found
7259 via elf_sym_hashes (input_bfd).
7260
1049f94e 7261 When generating relocatable output, this function must handle
5bd4f169
AM		 7262 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7263 going to be the section symbol corresponding to the output
7264 section, which means that the addend must be adjusted
7265 accordingly. */
7266
b34976b6 7267static bfd_boolean
4ce794b7
AM		 7268ppc64_elf_relocate_section (bfd *output_bfd,
7269 struct bfd_link_info *info,
7270 bfd *input_bfd,
7271 asection *input_section,
7272 bfd_byte *contents,
7273 Elf_Internal_Rela *relocs,
7274 Elf_Internal_Sym *local_syms,
7275 asection **local_sections)
5bd4f169 7276{
65f38f15 7277 struct ppc_link_hash_table *htab;
5bd4f169
AM		 7278 Elf_Internal_Shdr *symtab_hdr;
7279 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 7280 Elf_Internal_Rela *rel;
7281 Elf_Internal_Rela *relend;
411e1bfb
AM		 7282 Elf_Internal_Rela outrel;
7283 bfd_byte *loc;
411e1bfb 7284 struct got_entry **local_got_ents;
5bd4f169 7285 bfd_vma TOCstart;
b34976b6
AM		 7286 bfd_boolean ret = TRUE;
7287 bfd_boolean is_opd;
96e0dda4 7288 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 7289 bfd_boolean is_power4 = FALSE;
5bd4f169 7290
1049f94e 7291 if (info->relocatable)
b34976b6 7292 return TRUE;
b491616a 7293
65f38f15 7294 /* Initialize howto table if needed. */
5bd4f169 7295 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 7296 ppc_howto_init ();
7297
65f38f15 7298 htab = ppc_hash_table (info);
411e1bfb 7299 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 7300 TOCstart = elf_gp (output_bfd);
5bd4f169
AM		 7301 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
7302 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 7303 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 7304
5bd4f169
AM		 7305 rel = relocs;
7306 relend = relocs + input_section->reloc_count;
7307 for (; rel < relend; rel++)
7308 {
04c9666a 7309 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM		 7310 bfd_vma addend;
7311 bfd_reloc_status_type r;
7312 Elf_Internal_Sym *sym;
7313 asection *sec;
7314 struct elf_link_hash_entry *h;
721956f4 7315 struct elf_link_hash_entry *fdh;
5bd4f169 7316 const char *sym_name;
5bd4f169 7317 unsigned long r_symndx;
951fd09b 7318 char tls_mask, tls_gd, tls_type;
5bd4f169 7319 bfd_vma relocation;
b34976b6
AM		 7320 bfd_boolean unresolved_reloc;
7321 bfd_boolean warned;
50bc7936 7322 unsigned long insn, mask;
721956f4
AM		 7323 struct ppc_stub_hash_entry *stub_entry;
7324 bfd_vma max_br_offset;
7325 bfd_vma from;
5bd4f169 7326
4ce794b7 7327 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 7328 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7
AM		 7329 sym = NULL;
7330 sec = NULL;
7331 h = NULL;
7332 sym_name = NULL;
b34976b6
AM		 7333 unresolved_reloc = FALSE;
7334 warned = FALSE;
65f38f15 7335
0b13192e 7336 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 7337 {
7338 /* It's a local symbol. */
7339 sym = local_syms + r_symndx;
7340 sec = local_sections[r_symndx];
411e1bfb 7341 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
f8df10f4 7342 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
1e2f5b6e
AM		 7343 if (elf_section_data (sec) != NULL)
7344 {
7345 long *opd_sym_adjust;
7346
f0abc2a1 7347 opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust;
1e2f5b6e
AM		 7348 if (opd_sym_adjust != NULL && sym->st_value % 24 == 0)
7349 relocation += opd_sym_adjust[sym->st_value / 24];
7350 }
5bd4f169
AM		 7351 }
7352 else
7353 {
7354 /* It's a global symbol. */
7355 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7356 while (h->root.type == bfd_link_hash_indirect
7357 || h->root.type == bfd_link_hash_warning)
7358 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7359 sym_name = h->root.root.string;
65f38f15 7360 relocation = 0;
5bd4f169
AM		 7361 if (h->root.type == bfd_link_hash_defined
7362 || h->root.type == bfd_link_hash_defweak)
7363 {
7364 sec = h->root.u.def.section;
65f38f15
AM		 7365 if (sec->output_section == NULL)
7366 /* Set a flag that will be cleared later if we find a
7367 relocation value for this symbol. output_section
7368 is typically NULL for symbols satisfied by a shared
7369 library. */
b34976b6 7370 unresolved_reloc = TRUE;
5bd4f169
AM		 7371 else
7372 relocation = (h->root.u.def.value
7373 + sec->output_section->vma
7374 + sec->output_offset);
7375 }
7376 else if (h->root.type == bfd_link_hash_undefweak)
65f38f15 7377 ;
9203ba99 7378 else if (!info->executable
65f38f15
AM		 7379 && !info->no_undefined
7380 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
7381 ;
5bd4f169
AM		 7382 else
7383 {
7384 if (! ((*info->callbacks->undefined_symbol)
7385 (info, h->root.root.string, input_bfd, input_section,
411e1bfb
AM		 7386 rel->r_offset, (!info->shared
7387 || info->no_undefined
7388 || ELF_ST_VISIBILITY (h->other)))))
b34976b6
AM		 7389 return FALSE;
7390 warned = TRUE;
5bd4f169
AM		 7391 }
7392 }
7393
951fd09b
AM		 7394 /* TLS optimizations. Replace instruction sequences and relocs
7395 based on information we collected in tls_optimize. We edit
7396 RELOCS so that --emit-relocs will output something sensible
7397 for the final instruction stream. */
7398 tls_mask = 0;
7399 tls_gd = 0;
d881513a 7400 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 7401 {
7402 if (h != NULL)
e7b938ca 7403 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
411e1bfb
AM		 7404 else if (local_got_ents != NULL)
7405 {
e7b938ca
AM		 7406 char *lgot_masks;
7407 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
7408 tls_mask = lgot_masks[r_symndx];
411e1bfb
AM		 7409 }
7410 }
7411
7412 /* Ensure reloc mapping code below stays sane. */
7413 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
7414 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
7415 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
7416 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
7417 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
7418 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
7419 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
7420 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
7421 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
7422 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
7423 abort ();
7424 switch (r_type)
7425 {
7426 default:
411e1bfb
AM		 7427 break;
7428
7429 case R_PPC64_TOC16:
7430 case R_PPC64_TOC16_LO:
7431 case R_PPC64_TOC16_DS:
7432 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 7433 {
7434 /* Check for toc tls entries. */
7435 char *toc_tls;
951fd09b 7436 int retval;
411e1bfb 7437
e7b938ca 7438 retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd);
951fd09b 7439 if (retval == 0)
411e1bfb
AM		 7440 return FALSE;
7441
7442 if (toc_tls)
7443 {
951fd09b 7444 tls_mask = *toc_tls;
411e1bfb
AM		 7445 if (r_type == R_PPC64_TOC16_DS
7446 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 7447 {
7448 if (tls_mask != 0
7449 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
7450 goto toctprel;
7451 }
411e1bfb 7452 else
951fd09b
AM		 7453 {
7454 /* If we found a GD reloc pair, then we might be
7455 doing a GD->IE transition. */
7456 if (retval == 2)
7457 {
7458 tls_gd = TLS_TPRELGD;
7459 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7460 goto tls_get_addr_check;
7461 }
7462 else if (retval == 3)
7463 {
7464 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7465 goto tls_get_addr_check;
7466 }
7467 }
411e1bfb
AM		 7468 }
7469 }
7470 break;
7471
7472 case R_PPC64_GOT_TPREL16_DS:
7473 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 7474 if (tls_mask != 0
7475 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 7476 {
81407a69 7477 toctprel:
411e1bfb
AM		 7478 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
7479 insn &= 31 << 21;
7480 insn |= 0x3c0d0000; /* addis 0,13,0 */
7481 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
7482 r_type = R_PPC64_TPREL16_HA;
7483 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7484 }
7485 break;
7486
7487 case R_PPC64_TLS:
951fd09b 7488 if (tls_mask == 0)
411e1bfb
AM		 7489 {
7490 /* Check for toc tls entries. */
7491 char *toc_tls;
7492
e7b938ca 7493 if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd))
411e1bfb
AM		 7494 return FALSE;
7495
7496 if (toc_tls)
951fd09b 7497 tls_mask = *toc_tls;
411e1bfb 7498 }
951fd09b
AM		 7499 if (tls_mask != 0
7500 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 7501 {
50bc7936 7502 bfd_vma rtra;
411e1bfb 7503 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 7504 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 7505 == ((31 << 26) | (13 << 11)))
7506 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 7507 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 7508 == ((31 << 26) | (13 << 16)))
7509 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
7510 else
7511 abort ();
7512 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
7513 /* add -> addi. */
7514 insn = 14 << 26;
7515 else if ((insn & (31 << 1)) == 23 << 1
7516 && ((insn & (31 << 6)) < 14 << 6
7517 || ((insn & (31 << 6)) >= 16 << 6
7518 && (insn & (31 << 6)) < 24 << 6)))
7519 /* load and store indexed -> dform. */
7520 insn = (32 | ((insn >> 6) & 31)) << 26;
7521 else if ((insn & (31 << 1)) == 21 << 1
7522 && (insn & (0x1a << 6)) == 0)
7523 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7524 insn = (((58 | ((insn >> 6) & 4)) << 26)
7525 | ((insn >> 6) & 1));
7526 else if ((insn & (31 << 1)) == 21 << 1
7527 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
7528 /* lwax -> lwa. */
7529 insn = (58 << 26) | 2;
7530 else
7531 abort ();
7532 insn |= rtra;
7533 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7534 r_type = R_PPC64_TPREL16_LO;
7535 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7536 /* Was PPC64_TLS which sits on insn boundary, now
7537 PPC64_TPREL16_LO which is at insn+2. */
7538 rel->r_offset += 2;
7539 }
7540 break;
7541
411e1bfb
AM		 7542 case R_PPC64_GOT_TLSGD16_HI:
7543 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 7544 tls_gd = TLS_TPRELGD;
7545 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7546 goto tls_gdld_hi;
7547 break;
7548
411e1bfb
AM		 7549 case R_PPC64_GOT_TLSLD16_HI:
7550 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7551 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 7552 {
951fd09b
AM		 7553 tls_gdld_hi:
7554 if ((tls_mask & tls_gd) != 0)
7555 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7556 + R_PPC64_GOT_TPREL16_DS);
7557 else
411e1bfb 7558 {
951fd09b
AM		 7559 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7560 rel->r_offset -= 2;
7561 r_type = R_PPC64_NONE;
411e1bfb 7562 }
951fd09b 7563 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7564 }
7565 break;
7566
951fd09b
AM		 7567 case R_PPC64_GOT_TLSGD16:
7568 case R_PPC64_GOT_TLSGD16_LO:
7569 tls_gd = TLS_TPRELGD;
7570 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7571 goto tls_get_addr_check;
7572 break;
411e1bfb 7573
951fd09b
AM		 7574 case R_PPC64_GOT_TLSLD16:
7575 case R_PPC64_GOT_TLSLD16_LO:
7576 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7577 {
7578 tls_get_addr_check:
7579 if (rel + 1 < relend)
411e1bfb 7580 {
951fd09b
AM		 7581 enum elf_ppc64_reloc_type r_type2;
7582 unsigned long r_symndx2;
7583 struct elf_link_hash_entry *h2;
7584 bfd_vma insn1, insn2, insn3;
7585 bfd_vma offset;
7586
7587 /* The next instruction should be a call to
7588 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 7589 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM		 7590 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7591 if (r_symndx2 < symtab_hdr->sh_info
7592 || (r_type2 != R_PPC64_REL14
7593 && r_type2 != R_PPC64_REL14_BRTAKEN
7594 && r_type2 != R_PPC64_REL14_BRNTAKEN
7595 && r_type2 != R_PPC64_REL24))
7596 break;
7597
7598 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7599 while (h2->root.type == bfd_link_hash_indirect
7600 || h2->root.type == bfd_link_hash_warning)
7601 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
7602 if (h2 == NULL || h2 != htab->tls_get_addr)
7603 break;
7604
7605 /* OK, it checks out. Replace the call. */
7606 offset = rel[1].r_offset;
7607 insn1 = bfd_get_32 (output_bfd,
7608 contents + rel->r_offset - 2);
7609 insn3 = bfd_get_32 (output_bfd,
7610 contents + offset + 4);
7611 if ((tls_mask & tls_gd) != 0)
411e1bfb 7612 {
951fd09b
AM		 7613 /* IE */
7614 insn1 &= (1 << 26) - (1 << 2);
7615 insn1 |= 58 << 26; /* ld */
7616 insn2 = 0x7c636a14; /* add 3,3,13 */
7617 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
7618 if ((tls_mask & TLS_EXPLICIT) == 0)
7619 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7620 + R_PPC64_GOT_TPREL16_DS);
7621 else
7622 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
7623 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7624 }
7625 else
951fd09b
AM		 7626 {
7627 /* LE */
7628 insn1 = 0x3c6d0000; /* addis 3,13,0 */
7629 insn2 = 0x38630000; /* addi 3,3,0 */
7630 if (tls_gd == 0)
7631 {
7632 /* Was an LD reloc. */
7633 r_symndx = 0;
7634 rel->r_addend = htab->tls_sec->vma + DTP_OFFSET;
7635 rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET;
7636 }
7637 r_type = R_PPC64_TPREL16_HA;
7638 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7639 rel[1].r_info = ELF64_R_INFO (r_symndx,
7640 R_PPC64_TPREL16_LO);
7641 rel[1].r_offset += 2;
7642 }
7643 if (insn3 == NOP
7644 || insn3 == CROR_151515 || insn3 == CROR_313131)
7645 {
7646 insn3 = insn2;
7647 insn2 = NOP;
7648 rel[1].r_offset += 4;
7649 }
7650 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
7651 bfd_put_32 (output_bfd, insn2, contents + offset);
7652 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
7653 if (tls_gd == 0)
7654 {
7655 /* We changed the symbol on an LD reloc. Start over
ad8e1ba5 7656 in order to get h, sym, sec etc. right. */
951fd09b
AM		 7657 rel--;
7658 continue;
7659 }
411e1bfb 7660 }
411e1bfb 7661 }
411e1bfb
AM		 7662 break;
7663
7664 case R_PPC64_DTPMOD64:
951fd09b
AM		 7665 if (rel + 1 < relend
7666 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
7667 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 7668 {
951fd09b
AM		 7669 if ((tls_mask & TLS_GD) == 0)
7670 {
7671 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
7672 if ((tls_mask & TLS_TPRELGD) != 0)
7673 r_type = R_PPC64_TPREL64;
7674 else
7675 {
4ce794b7 7676 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 7677 r_type = R_PPC64_NONE;
7678 }
7679 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7680 }
7681 }
7682 else
7683 {
7684 if ((tls_mask & TLS_LD) == 0)
411e1bfb 7685 {
4ce794b7 7686 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 7687 r_type = R_PPC64_NONE;
951fd09b 7688 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 7689 }
411e1bfb
AM		 7690 }
7691 break;
7692
7693 case R_PPC64_TPREL64:
951fd09b 7694 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 7695 {
7696 r_type = R_PPC64_NONE;
7697 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7698 }
7699 break;
7700 }
7701
7702 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 7703 insn = 0;
65f38f15 7704 switch (r_type)
5bd4f169
AM		 7705 {
7706 default:
65f38f15 7707 break;
5bd4f169 7708
65f38f15
AM		 7709 /* Branch taken prediction relocations. */
7710 case R_PPC64_ADDR14_BRTAKEN:
7711 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 7712 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7713 /* Fall thru. */
65f38f15 7714
86c76c7b 7715 /* Branch not taken prediction relocations. */
65f38f15
AM		 7716 case R_PPC64_ADDR14_BRNTAKEN:
7717 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 7718 insn |= bfd_get_32 (output_bfd,
7719 contents + rel->r_offset) & ~(0x01 << 21);
96e0dda4
AM		 7720 if (is_power4)
7721 {
7722 /* Set 'a' bit. This is 0b00010 in BO field for branch
7723 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7724 for branch on CTR insns (BO == 1a00t or 1a01t). */
7725 if ((insn & (0x14 << 21)) == (0x04 << 21))
7726 insn |= 0x02 << 21;
7727 else if ((insn & (0x14 << 21)) == (0x10 << 21))
7728 insn |= 0x08 << 21;
7729 else
7730 break;
7731 }
65f38f15 7732 else
96e0dda4 7733 {
411e1bfb 7734 from = (rel->r_offset
805fc799
AM		 7735 + input_section->output_offset
7736 + input_section->output_section->vma);
7737
96e0dda4 7738 /* Invert 'y' bit if not the default. */
411e1bfb 7739 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
96e0dda4
AM		 7740 insn ^= 0x01 << 21;
7741 }
86c76c7b 7742
4ce794b7 7743 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
65f38f15 7744 break;
5bd4f169 7745
65f38f15 7746 case R_PPC64_REL24:
ad8e1ba5
AM		 7747 /* Calls to functions with a different TOC, such as calls to
7748 shared objects, need to alter the TOC pointer. This is
7749 done using a linkage stub. A REL24 branching to these
7750 linkage stubs needs to be followed by a nop, as the nop
7751 will be replaced with an instruction to restore the TOC
7752 base pointer. */
7753 if (((h != NULL
7754 && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL
7755 && fdh->plt.plist != NULL)
7756 || ((fdh = h, sec) != NULL
7757 && sec->output_section != NULL
7758 && (htab->stub_group[sec->id].toc_off
7759 != htab->stub_group[input_section->id].toc_off)))
721956f4 7760 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 7761 rel, htab)) != NULL
7762 && (stub_entry->stub_type == ppc_stub_plt_call
7763 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
7764 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 7765 {
b34976b6 7766 bfd_boolean can_plt_call = 0;
721956f4 7767
411e1bfb 7768 if (rel->r_offset + 8 <= input_section->_cooked_size)
41bd81ab 7769 {
411e1bfb 7770 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
721956f4
AM		 7771 if (insn == NOP
7772 || insn == CROR_151515 || insn == CROR_313131)
41bd81ab 7773 {
4ce794b7 7774 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 7775 contents + rel->r_offset + 4);
721956f4 7776 can_plt_call = 1;
41bd81ab 7777 }
5bd4f169 7778 }
721956f4
AM		 7779
7780 if (!can_plt_call)
7781 {
ad8e1ba5
AM		 7782 if (stub_entry->stub_type == ppc_stub_plt_call)
7783 {
7784 /* If this is a plain branch rather than a branch
7785 and link, don't require a nop. */
7786 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
7787 if ((insn & 1) == 0)
7788 can_plt_call = 1;
7789 }
7790 else
7791 {
7792 if (strcmp (input_section->output_section->name,
7793 ".init") == 0
7794 || strcmp (input_section->output_section->name,
7795 ".fini") == 0)
7796 (*_bfd_error_handler)
7797 (_("%s(%s+0x%lx): automatic multiple TOCs "
7798 "not supported using your crt files; "
7799 "recompile with -mminimal-toc or upgrade gcc"),
7800 bfd_archive_filename (input_bfd),
7801 input_section->name,
7802 (long) rel->r_offset);
7803 else
7804 (*_bfd_error_handler)
7805 (_("%s(%s+0x%lx): sibling call optimization to `%s' "
7806 "does not allow automatic multiple TOCs; "
7807 "recompile with -mminimal-toc or "
7808 "-fno-optimize-sibling-calls, "
7809 "or make `%s' extern"),
7810 bfd_archive_filename (input_bfd),
7811 input_section->name,
7812 (long) rel->r_offset,
7813 sym_name,
7814 sym_name);
7815 bfd_set_error (bfd_error_bad_value);
7816 ret = FALSE;
7817 }
721956f4
AM		 7818 }
7819
7820 if (can_plt_call)
7821 {
7822 relocation = (stub_entry->stub_offset
7823 + stub_entry->stub_sec->output_offset
7824 + stub_entry->stub_sec->output_section->vma);
ad8e1ba5
AM		 7825 if (stub_entry->stub_type == ppc_stub_plt_call)
7826 unresolved_reloc = FALSE;
721956f4 7827 }
5bd4f169 7828 }
e86ce104
AM		 7829
7830 if (h != NULL
7831 && h->root.type == bfd_link_hash_undefweak
721956f4 7832 && relocation == 0
411e1bfb 7833 && rel->r_addend == 0)
e86ce104 7834 {
721956f4
AM		 7835 /* Tweak calls to undefined weak functions to point at a
7836 blr. We can thus call a weak function without first
7837 checking whether the function is defined. We have a
7838 blr at the end of .sfpr. */
805fc799 7839 BFD_ASSERT (htab->sfpr->_raw_size != 0);
721956f4
AM		 7840 relocation = (htab->sfpr->_raw_size - 4
7841 + htab->sfpr->output_offset
7842 + htab->sfpr->output_section->vma);
411e1bfb 7843 from = (rel->r_offset
721956f4
AM		 7844 + input_section->output_offset
7845 + input_section->output_section->vma);
805fc799 7846
721956f4
AM		 7847 /* But let's not be silly about it. If the blr isn't in
7848 reach, just go to the next instruction. */
805fc799
AM		 7849 if (relocation - from + (1 << 25) >= (1 << 26)
7850 || htab->sfpr->_raw_size == 0)
721956f4 7851 relocation = from + 4;
e86ce104 7852 }
65f38f15
AM		 7853 break;
7854 }
5bd4f169 7855
65f38f15 7856 /* Set `addend'. */
411e1bfb
AM		 7857 tls_type = 0;
7858 addend = rel->r_addend;
65f38f15
AM		 7859 switch (r_type)
7860 {
7861 default:
7862 (*_bfd_error_handler)
7863 (_("%s: unknown relocation type %d for symbol %s"),
7864 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
5bd4f169 7865
65f38f15 7866 bfd_set_error (bfd_error_bad_value);
b34976b6 7867 ret = FALSE;
65f38f15 7868 continue;
5bd4f169 7869
65f38f15 7870 case R_PPC64_NONE:
411e1bfb 7871 case R_PPC64_TLS:
04c9666a
AM		 7872 case R_PPC64_GNU_VTINHERIT:
7873 case R_PPC64_GNU_VTENTRY:
65f38f15 7874 continue;
5bd4f169
AM		 7875
7876 /* GOT16 relocations. Like an ADDR16 using the symbol's
7877 address in the GOT as relocation value instead of the
411e1bfb 7878 symbol's value itself. Also, create a GOT entry for the
5bd4f169 7879 symbol and put the symbol value there. */
411e1bfb
AM		 7880 case R_PPC64_GOT_TLSGD16:
7881 case R_PPC64_GOT_TLSGD16_LO:
7882 case R_PPC64_GOT_TLSGD16_HI:
7883 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 7884 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 7885 goto dogot;
7886
7887 case R_PPC64_GOT_TLSLD16:
7888 case R_PPC64_GOT_TLSLD16_LO:
7889 case R_PPC64_GOT_TLSLD16_HI:
7890 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7891 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 7892 goto dogot;
7893
7894 case R_PPC64_GOT_TPREL16_DS:
7895 case R_PPC64_GOT_TPREL16_LO_DS:
7896 case R_PPC64_GOT_TPREL16_HI:
7897 case R_PPC64_GOT_TPREL16_HA:
7898 tls_type = TLS_TLS | TLS_TPREL;
7899 goto dogot;
7900
7901 case R_PPC64_GOT_DTPREL16_DS:
7902 case R_PPC64_GOT_DTPREL16_LO_DS:
7903 case R_PPC64_GOT_DTPREL16_HI:
7904 case R_PPC64_GOT_DTPREL16_HA:
7905 tls_type = TLS_TLS | TLS_DTPREL;
7906 goto dogot;
7907
65f38f15
AM		 7908 case R_PPC64_GOT16:
7909 case R_PPC64_GOT16_LO:
7910 case R_PPC64_GOT16_HI:
7911 case R_PPC64_GOT16_HA:
7912 case R_PPC64_GOT16_DS:
7913 case R_PPC64_GOT16_LO_DS:
411e1bfb 7914 dogot:
5bd4f169
AM		 7915 {
7916 /* Relocation is to the entry for this symbol in the global
7917 offset table. */
e717da7e 7918 asection *got;
d881513a 7919 bfd_vma *offp;
5bd4f169 7920 bfd_vma off;
d881513a 7921 unsigned long indx = 0;
65f38f15 7922
d881513a
AM		 7923 if (tls_type == (TLS_TLS | TLS_LD)
7924 && (h == NULL
7925 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
e717da7e 7926 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 7927 else
5bd4f169 7928 {
d881513a 7929 struct got_entry *ent;
5bd4f169 7930
d881513a
AM		 7931 if (h != NULL)
7932 {
7933 bfd_boolean dyn = htab->elf.dynamic_sections_created;
f4656909 7934 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
d881513a 7935 || (info->shared
586119b3 7936 && SYMBOL_REFERENCES_LOCAL (info, h)))
d881513a
AM		 7937 /* This is actually a static link, or it is a
7938 -Bsymbolic link and the symbol is defined
7939 locally, or the symbol was forced to be local
7940 because of a version file. */
7941 ;
7942 else
7943 {
7944 indx = h->dynindx;
7945 unresolved_reloc = FALSE;
7946 }
7947 ent = h->got.glist;
7948 }
411e1bfb 7949 else
5bd4f169 7950 {
d881513a
AM		 7951 if (local_got_ents == NULL)
7952 abort ();
7953 ent = local_got_ents[r_symndx];
5bd4f169 7954 }
d881513a
AM		 7955
7956 for (; ent != NULL; ent = ent->next)
7957 if (ent->addend == rel->r_addend
e717da7e 7958 && ent->owner == input_bfd
d881513a
AM		 7959 && ent->tls_type == tls_type)
7960 break;
7961 if (ent == NULL)
7962 abort ();
7963 offp = &ent->got.offset;
5bd4f169 7964 }
411e1bfb 7965
e717da7e
AM		 7966 got = ppc64_elf_tdata (input_bfd)->got;
7967 if (got == NULL)
7968 abort ();
7969
411e1bfb
AM		 7970 /* The offset must always be a multiple of 8. We use the
7971 least significant bit to record whether we have already
7972 processed this entry. */
d881513a 7973 off = *offp;
411e1bfb
AM		 7974 if ((off & 1) != 0)
7975 off &= ~1;
5bd4f169
AM		 7976 else
7977 {
411e1bfb
AM		 7978 /* Generate relocs for the dynamic linker, except in
7979 the case of TLSLD where we'll use one entry per
7980 module. */
e717da7e
AM		 7981 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
7982
d881513a 7983 *offp = off | 1;
4e795f50
AM		 7984 if ((info->shared || indx != 0)
7985 && (h == NULL
7986 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7987 || h->root.type != bfd_link_hash_undefweak))
5bd4f169 7988 {
e717da7e
AM		 7989 outrel.r_offset = (got->output_section->vma
7990 + got->output_offset
411e1bfb 7991 + off);
81407a69 7992 outrel.r_addend = rel->r_addend;
d881513a 7993 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 7994 {
411e1bfb 7995 outrel.r_addend = 0;
e515b051 7996 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 7997 if (tls_type == (TLS_TLS | TLS_GD))
7998 {
e717da7e
AM		 7999 loc = relgot->contents;
8000 loc += (relgot->reloc_count++
d881513a
AM		 8001 * sizeof (Elf64_External_Rela));
8002 bfd_elf64_swap_reloca_out (output_bfd,
8003 &outrel, loc);
e515b051 8004 outrel.r_offset += 8;
81407a69 8005 outrel.r_addend = rel->r_addend;
d881513a
AM		 8006 outrel.r_info
8007 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 8008 }
411e1bfb 8009 }
951fd09b 8010 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 8011 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 8012 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 8013 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
8014 else if (indx == 0)
81407a69
AM		 8015 {
8016 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
8017
8018 /* Write the .got section contents for the sake
8019 of prelink. */
e717da7e 8020 loc = got->contents + off;
23fbd6fa
JJ		 8021 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
8022 loc);
81407a69 8023 }
411e1bfb
AM		 8024 else
8025 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 8026
8027 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 8028 {
8029 outrel.r_addend += relocation;
8030 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8031 outrel.r_addend -= htab->tls_sec->vma;
8032 }
e717da7e
AM		 8033 loc = relgot->contents;
8034 loc += (relgot->reloc_count++
411e1bfb
AM		 8035 * sizeof (Elf64_External_Rela));
8036 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8037 }
8038
ad8e1ba5 8039 /* Init the .got section contents here if we're not
81407a69 8040 emitting a reloc. */
d881513a 8041 else
411e1bfb 8042 {
d881513a 8043 relocation += rel->r_addend;
7b609f53
AM		 8044 if (tls_type == (TLS_TLS | TLS_LD))
8045 relocation = 1;
8046 else if (tls_type != 0)
411e1bfb
AM		 8047 {
8048 relocation -= htab->tls_sec->vma + DTP_OFFSET;
7b609f53 8049 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 8050 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 8051
7b609f53
AM		 8052 if (tls_type == (TLS_TLS | TLS_GD))
8053 {
8054 bfd_put_64 (output_bfd, relocation,
e717da7e 8055 got->contents + off + 8);
7b609f53
AM		 8056 relocation = 1;
8057 }
411e1bfb 8058 }
7b609f53 8059
411e1bfb 8060 bfd_put_64 (output_bfd, relocation,
e717da7e 8061 got->contents + off);
5bd4f169
AM		 8062 }
8063 }
8064
65f38f15
AM		 8065 if (off >= (bfd_vma) -2)
8066 abort ();
8067
e717da7e 8068 relocation = got->output_offset + off;
65f38f15 8069
5bd4f169 8070 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 8071 addend = -TOC_BASE_OFF;
5bd4f169 8072 }
65f38f15
AM		 8073 break;
8074
8075 case R_PPC64_PLT16_HA:
8076 case R_PPC64_PLT16_HI:
8077 case R_PPC64_PLT16_LO:
8078 case R_PPC64_PLT32:
8079 case R_PPC64_PLT64:
8080 /* Relocation is to the entry for this symbol in the
8081 procedure linkage table. */
8082
8083 /* Resolve a PLT reloc against a local symbol directly,
8084 without using the procedure linkage table. */
8085 if (h == NULL)
8086 break;
8087
411e1bfb
AM		 8088 /* It's possible that we didn't make a PLT entry for this
8089 symbol. This happens when statically linking PIC code,
8090 or when using -Bsymbolic. Go find a match if there is a
8091 PLT entry. */
4ce794b7 8092 if (htab->plt != NULL)
65f38f15 8093 {
411e1bfb
AM		 8094 struct plt_entry *ent;
8095 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8096 if (ent->addend == rel->r_addend
8097 && ent->plt.offset != (bfd_vma) -1)
8098 {
4ce794b7
AM		 8099 relocation = (htab->plt->output_section->vma
8100 + htab->plt->output_offset
411e1bfb
AM		 8101 + ent->plt.offset);
8102 unresolved_reloc = FALSE;
8103 }
65f38f15 8104 }
65f38f15 8105 break;
5bd4f169 8106
0b13192e
AM		 8107 case R_PPC64_TOC:
8108 /* Relocation value is TOC base. */
8109 relocation = TOCstart;
8110 if (r_symndx == 0)
8111 relocation += htab->stub_group[input_section->id].toc_off;
8112 else if (sec != NULL && !unresolved_reloc)
8113 relocation += htab->stub_group[sec->id].toc_off;
8114 else
8115 unresolved_reloc = TRUE;
8116 goto dodyn2;
8117
5bd4f169
AM		 8118 /* TOC16 relocs. We want the offset relative to the TOC base,
8119 which is the address of the start of the TOC plus 0x8000.
8120 The TOC consists of sections .got, .toc, .tocbss, and .plt,
8121 in this order. */
65f38f15
AM		 8122 case R_PPC64_TOC16:
8123 case R_PPC64_TOC16_LO:
8124 case R_PPC64_TOC16_HI:
8125 case R_PPC64_TOC16_DS:
8126 case R_PPC64_TOC16_LO_DS:
8127 case R_PPC64_TOC16_HA:
ad8e1ba5 8128 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 8129 break;
8130
8131 /* Relocate against the beginning of the section. */
65f38f15
AM		 8132 case R_PPC64_SECTOFF:
8133 case R_PPC64_SECTOFF_LO:
8134 case R_PPC64_SECTOFF_HI:
8135 case R_PPC64_SECTOFF_DS:
8136 case R_PPC64_SECTOFF_LO_DS:
8137 case R_PPC64_SECTOFF_HA:
4ce794b7 8138 if (sec != NULL)
65f38f15 8139 addend -= sec->output_section->vma;
5bd4f169
AM		 8140 break;
8141
721956f4
AM		 8142 case R_PPC64_REL14:
8143 case R_PPC64_REL14_BRNTAKEN:
8144 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 8145 case R_PPC64_REL24:
8146 break;
8147
411e1bfb
AM		 8148 case R_PPC64_TPREL16:
8149 case R_PPC64_TPREL16_LO:
8150 case R_PPC64_TPREL16_HI:
8151 case R_PPC64_TPREL16_HA:
8152 case R_PPC64_TPREL16_DS:
8153 case R_PPC64_TPREL16_LO_DS:
8154 case R_PPC64_TPREL16_HIGHER:
8155 case R_PPC64_TPREL16_HIGHERA:
8156 case R_PPC64_TPREL16_HIGHEST:
8157 case R_PPC64_TPREL16_HIGHESTA:
8158 addend -= htab->tls_sec->vma + TP_OFFSET;
8159 if (info->shared)
8160 /* The TPREL16 relocs shouldn't really be used in shared
8161 libs as they will result in DT_TEXTREL being set, but
8162 support them anyway. */
8163 goto dodyn;
8164 break;
8165
8166 case R_PPC64_DTPREL16:
8167 case R_PPC64_DTPREL16_LO:
8168 case R_PPC64_DTPREL16_HI:
8169 case R_PPC64_DTPREL16_HA:
8170 case R_PPC64_DTPREL16_DS:
8171 case R_PPC64_DTPREL16_LO_DS:
8172 case R_PPC64_DTPREL16_HIGHER:
8173 case R_PPC64_DTPREL16_HIGHERA:
8174 case R_PPC64_DTPREL16_HIGHEST:
8175 case R_PPC64_DTPREL16_HIGHESTA:
8176 addend -= htab->tls_sec->vma + DTP_OFFSET;
8177 break;
8178
e515b051
AM		 8179 case R_PPC64_DTPMOD64:
8180 relocation = 1;
8181 addend = 0;
8182 goto dodyn;
8183
411e1bfb
AM		 8184 case R_PPC64_TPREL64:
8185 addend -= htab->tls_sec->vma + TP_OFFSET;
8186 goto dodyn;
8187
8188 case R_PPC64_DTPREL64:
8189 addend -= htab->tls_sec->vma + DTP_OFFSET;
8190 /* Fall thru */
8191
65f38f15
AM		 8192 /* Relocations that may need to be propagated if this is a
8193 dynamic object. */
04c9666a 8194 case R_PPC64_REL30:
65f38f15
AM		 8195 case R_PPC64_REL32:
8196 case R_PPC64_REL64:
8197 case R_PPC64_ADDR14:
8198 case R_PPC64_ADDR14_BRNTAKEN:
8199 case R_PPC64_ADDR14_BRTAKEN:
8200 case R_PPC64_ADDR16:
8201 case R_PPC64_ADDR16_DS:
8202 case R_PPC64_ADDR16_HA:
8203 case R_PPC64_ADDR16_HI:
8204 case R_PPC64_ADDR16_HIGHER:
8205 case R_PPC64_ADDR16_HIGHERA:
8206 case R_PPC64_ADDR16_HIGHEST:
8207 case R_PPC64_ADDR16_HIGHESTA:
8208 case R_PPC64_ADDR16_LO:
8209 case R_PPC64_ADDR16_LO_DS:
8210 case R_PPC64_ADDR24:
65f38f15
AM		 8211 case R_PPC64_ADDR32:
8212 case R_PPC64_ADDR64:
8213 case R_PPC64_UADDR16:
8214 case R_PPC64_UADDR32:
8215 case R_PPC64_UADDR64:
ec338859
AM		 8216 /* r_symndx will be zero only for relocs against symbols
8217 from removed linkonce sections, or sections discarded by
8218 a linker script. */
411e1bfb 8219 dodyn:
5d1634d7
AM		 8220 if (r_symndx == 0)
8221 break;
8222 /* Fall thru. */
8223
0b13192e 8224 dodyn2:
5d1634d7 8225 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 8226 break;
8227
41bd81ab
AM		 8228 if (NO_OPD_RELOCS && is_opd)
8229 break;
8230
65f38f15 8231 if ((info->shared
4e795f50
AM		 8232 && (h == NULL
8233 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8234 || h->root.type != bfd_link_hash_undefweak)
411e1bfb 8235 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 8236 || !SYMBOL_CALLS_LOCAL (info, h)))
f4656909
AM		 8237 || (ELIMINATE_COPY_RELOCS
8238 && !info->shared
65f38f15
AM		 8239 && h != NULL
8240 && h->dynindx != -1
8241 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 8242 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8243 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
65f38f15
AM		 8244 {
8245 Elf_Internal_Rela outrel;
b34976b6 8246 bfd_boolean skip, relocate;
65f38f15 8247 asection *sreloc;
947216bf 8248 bfd_byte *loc;
1cf1f670 8249 bfd_vma out_off;
65f38f15
AM		 8250
8251 /* When generating a dynamic object, these relocations
8252 are copied into the output file to be resolved at run
8253 time. */
8254
b34976b6
AM		 8255 skip = FALSE;
8256 relocate = FALSE;
65f38f15 8257
1cf1f670
AM		 8258 out_off = _bfd_elf_section_offset (output_bfd, info,
8259 input_section, rel->r_offset);
8260 if (out_off == (bfd_vma) -1)
b34976b6 8261 skip = TRUE;
1cf1f670 8262 else if (out_off == (bfd_vma) -2)
b34976b6 8263 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 8264 out_off += (input_section->output_section->vma
8265 + input_section->output_offset);
8266 outrel.r_offset = out_off;
411e1bfb 8267 outrel.r_addend = rel->r_addend;
65f38f15 8268
1cf1f670
AM		 8269 /* Optimize unaligned reloc use. */
8270 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
8271 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
8272 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
8273 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
8274 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
8275 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
8276 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
8277 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
8278 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
8279
65f38f15 8280 if (skip)
0bb2d96a 8281 memset (&outrel, 0, sizeof outrel);
f6c52c13 8282 else if (!SYMBOL_REFERENCES_LOCAL (info, h)
0b13192e
AM		 8283 && !is_opd
8284 && r_type != R_PPC64_TOC)
0bb2d96a 8285 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
65f38f15
AM		 8286 else
8287 {
41bd81ab
AM		 8288 /* This symbol is local, or marked to become local,
8289 or this is an opd section reloc which must point
8290 at a local function. */
65f38f15 8291 outrel.r_addend += relocation;
e86ce104 8292 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 8293 {
3fad3c7c 8294 if (is_opd && h != NULL)
afbe61cf
AM		 8295 {
8296 /* Lie about opd entries. This case occurs
8297 when building shared libraries and we
8298 reference a function in another shared
3fad3c7c
AM		 8299 lib. The same thing happens for a weak
8300 definition in an application that's
8301 overridden by a strong definition in a
8302 shared lib. (I believe this is a generic
8303 bug in binutils handling of weak syms.)
8304 In these cases we won't use the opd
1e2f5b6e 8305 entry in this lib. */
b34976b6 8306 unresolved_reloc = FALSE;
afbe61cf 8307 }
65f38f15 8308 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 8309
8310 /* We need to relocate .opd contents for ld.so.
8311 Prelink also wants simple and consistent rules
8312 for relocs. This make all RELATIVE relocs have
8313 *r_offset equal to r_addend. */
8314 relocate = TRUE;
65f38f15
AM		 8315 }
8316 else
8317 {
8318 long indx = 0;
8319
41bd81ab 8320 if (bfd_is_abs_section (sec))
65f38f15
AM		 8321 ;
8322 else if (sec == NULL || sec->owner == NULL)
8323 {
8324 bfd_set_error (bfd_error_bad_value);
b34976b6 8325 return FALSE;
65f38f15
AM		 8326 }
8327 else
8328 {
8329 asection *osec;
8330
8331 osec = sec->output_section;
8332 indx = elf_section_data (osec)->dynindx;
8333
8334 /* We are turning this relocation into one
8335 against a section symbol, so subtract out
8336 the output section's address but not the
8337 offset of the input section in the output
8338 section. */
8339 outrel.r_addend -= osec->vma;
8340 }
8341
8342 outrel.r_info = ELF64_R_INFO (indx, r_type);
8343 }
8344 }
8345
8346 sreloc = elf_section_data (input_section)->sreloc;
8347 if (sreloc == NULL)
8348 abort ();
8349
947216bf
AM		 8350 loc = sreloc->contents;
8351 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 8352 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8353
8354 /* If this reloc is against an external symbol, it will
8355 be computed at runtime, so there's no need to do
81407a69
AM		 8356 anything now. However, for the sake of prelink ensure
8357 that the section contents are a known value. */
65f38f15 8358 if (! relocate)
81407a69
AM		 8359 {
8360 unresolved_reloc = FALSE;
8361 /* The value chosen here is quite arbitrary as ld.so
8362 ignores section contents except for the special
8363 case of .opd where the contents might be accessed
8364 before relocation. Choose zero, as that won't
8365 cause reloc overflow. */
8366 relocation = 0;
8367 addend = 0;
8368 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
8369 to improve backward compatibility with older
8370 versions of ld. */
8371 if (r_type == R_PPC64_ADDR64)
8372 addend = outrel.r_addend;
8373 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 8374 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 8375 addend = (input_section->output_section->vma
8376 + input_section->output_offset
8377 + rel->r_offset);
81407a69 8378 }
65f38f15 8379 }
5bd4f169
AM		 8380 break;
8381
65f38f15
AM		 8382 case R_PPC64_COPY:
8383 case R_PPC64_GLOB_DAT:
8384 case R_PPC64_JMP_SLOT:
8385 case R_PPC64_RELATIVE:
8386 /* We shouldn't ever see these dynamic relocs in relocatable
8387 files. */
ae9a127f 8388 /* Fall through. */
65f38f15
AM		 8389
8390 case R_PPC64_PLTGOT16:
8391 case R_PPC64_PLTGOT16_DS:
8392 case R_PPC64_PLTGOT16_HA:
8393 case R_PPC64_PLTGOT16_HI:
8394 case R_PPC64_PLTGOT16_LO:
8395 case R_PPC64_PLTGOT16_LO_DS:
8396 case R_PPC64_PLTREL32:
8397 case R_PPC64_PLTREL64:
8398 /* These ones haven't been implemented yet. */
8399
8400 (*_bfd_error_handler)
7b609f53 8401 (_("%s: relocation %s is not supported for symbol %s."),
65f38f15 8402 bfd_archive_filename (input_bfd),
4ce794b7 8403 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 8404
8405 bfd_set_error (bfd_error_invalid_operation);
b34976b6 8406 ret = FALSE;
5bd4f169 8407 continue;
65f38f15 8408 }
5bd4f169 8409
65f38f15
AM		 8410 /* Do any further special processing. */
8411 switch (r_type)
8412 {
8413 default:
8414 break;
8415
8416 case R_PPC64_ADDR16_HA:
8417 case R_PPC64_ADDR16_HIGHERA:
8418 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM		 8419 case R_PPC64_GOT16_HA:
8420 case R_PPC64_PLTGOT16_HA:
65f38f15
AM		 8421 case R_PPC64_PLT16_HA:
8422 case R_PPC64_TOC16_HA:
8423 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 8424 case R_PPC64_TPREL16_HA:
8425 case R_PPC64_DTPREL16_HA:
8426 case R_PPC64_GOT_TLSGD16_HA:
8427 case R_PPC64_GOT_TLSLD16_HA:
8428 case R_PPC64_GOT_TPREL16_HA:
8429 case R_PPC64_GOT_DTPREL16_HA:
8430 case R_PPC64_TPREL16_HIGHER:
8431 case R_PPC64_TPREL16_HIGHERA:
8432 case R_PPC64_TPREL16_HIGHEST:
8433 case R_PPC64_TPREL16_HIGHESTA:
8434 case R_PPC64_DTPREL16_HIGHER:
8435 case R_PPC64_DTPREL16_HIGHERA:
8436 case R_PPC64_DTPREL16_HIGHEST:
8437 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 8438 /* It's just possible that this symbol is a weak symbol
8439 that's not actually defined anywhere. In that case,
8440 'sec' would be NULL, and we should leave the symbol
8441 alone (it will be set to zero elsewhere in the link). */
8442 if (sec != NULL)
e515b051
AM		 8443 /* Add 0x10000 if sign bit in 0:15 is set.
8444 Bits 0:15 are not used. */
8445 addend += 0x8000;
65f38f15
AM		 8446 break;
8447
8448 case R_PPC64_ADDR16_DS:
8449 case R_PPC64_ADDR16_LO_DS:
8450 case R_PPC64_GOT16_DS:
8451 case R_PPC64_GOT16_LO_DS:
8452 case R_PPC64_PLT16_LO_DS:
8453 case R_PPC64_SECTOFF_DS:
8454 case R_PPC64_SECTOFF_LO_DS:
8455 case R_PPC64_TOC16_DS:
8456 case R_PPC64_TOC16_LO_DS:
8457 case R_PPC64_PLTGOT16_DS:
8458 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 8459 case R_PPC64_GOT_TPREL16_DS:
8460 case R_PPC64_GOT_TPREL16_LO_DS:
8461 case R_PPC64_GOT_DTPREL16_DS:
8462 case R_PPC64_GOT_DTPREL16_LO_DS:
8463 case R_PPC64_TPREL16_DS:
8464 case R_PPC64_TPREL16_LO_DS:
8465 case R_PPC64_DTPREL16_DS:
8466 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 8467 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
8468 mask = 3;
8469 /* If this reloc is against an lq insn, then the value must be
8470 a multiple of 16. This is somewhat of a hack, but the
8471 "correct" way to do this by defining _DQ forms of all the
8472 _DS relocs bloats all reloc switches in this file. It
8473 doesn't seem to make much sense to use any of these relocs
8474 in data, so testing the insn should be safe. */
494dac0c 8475 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 8476 mask = 15;
8477 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 8478 {
8479 (*_bfd_error_handler)
adadcc0c 8480 (_("%s: error: relocation %s not a multiple of %d"),
65f38f15 8481 bfd_archive_filename (input_bfd),
4ce794b7 8482 ppc64_elf_howto_table[r_type]->name,
adadcc0c 8483 mask + 1);
65f38f15 8484 bfd_set_error (bfd_error_bad_value);
b34976b6 8485 ret = FALSE;
65f38f15
AM		 8486 continue;
8487 }
8488 break;
721956f4
AM		 8489
8490 case R_PPC64_REL14:
8491 case R_PPC64_REL14_BRNTAKEN:
8492 case R_PPC64_REL14_BRTAKEN:
8493 max_br_offset = 1 << 15;
8494 goto branch_check;
8495
8496 case R_PPC64_REL24:
8497 max_br_offset = 1 << 25;
8498
8499 branch_check:
ad8e1ba5
AM		 8500 /* If the branch is out of reach or the TOC register needs
8501 adjusting, then redirect the call to the local stub for
8502 this function. */
411e1bfb 8503 from = (rel->r_offset
721956f4
AM		 8504 + input_section->output_offset
8505 + input_section->output_section->vma);
ad8e1ba5
AM		 8506 if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset
8507 || (sec != NULL
8508 && sec->output_section != NULL
8f3bab57 8509 && sec->id <= htab->top_id
ad8e1ba5
AM		 8510 && (htab->stub_group[sec->id].toc_off
8511 != htab->stub_group[input_section->id].toc_off)))
721956f4
AM		 8512 && (stub_entry = ppc_get_stub_entry (input_section, sec, h,
8513 rel, htab)) != NULL)
8514 {
8515 /* Munge up the value and addend so that we call the stub
8516 rather than the procedure directly. */
8517 relocation = (stub_entry->stub_offset
8518 + stub_entry->stub_sec->output_offset
8519 + stub_entry->stub_sec->output_section->vma);
8520 addend = 0;
8521 }
8522 break;
5bd4f169
AM		 8523 }
8524
239e1f3a
AM		 8525 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8526 because such sections are not SEC_ALLOC and thus ld.so will
8527 not process them. */
65f38f15 8528 if (unresolved_reloc
239e1f3a 8529 && !((input_section->flags & SEC_DEBUGGING) != 0
65f38f15 8530 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
9c07fe7c
AM		 8531 {
8532 (*_bfd_error_handler)
7b609f53 8533 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
9c07fe7c
AM		 8534 bfd_archive_filename (input_bfd),
8535 bfd_get_section_name (input_bfd, input_section),
8536 (long) rel->r_offset,
7b609f53 8537 ppc64_elf_howto_table[(int) r_type]->name,
9c07fe7c 8538 h->root.root.string);
b34976b6 8539 ret = FALSE;
9c07fe7c 8540 }
5bd4f169 8541
65f38f15 8542 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 8543 input_bfd,
8544 input_section,
8545 contents,
411e1bfb 8546 rel->r_offset,
5bd4f169
AM		 8547 relocation,
8548 addend);
8549
ef60b7ff 8550 if (r != bfd_reloc_ok)
5bd4f169 8551 {
cd27b276
AM		 8552 if (sym_name == NULL)
8553 sym_name = "(null)";
8554 if (r == bfd_reloc_overflow)
5bd4f169 8555 {
cd27b276
AM		 8556 if (warned)
8557 continue;
8558 if (h != NULL
8559 && h->root.type == bfd_link_hash_undefweak
4ce794b7 8560 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 8561 {
8562 /* Assume this is a call protected by other code that
8563 detects the symbol is undefined. If this is the case,
8564 we can safely ignore the overflow. If not, the
8565 program is hosed anyway, and a little warning isn't
8566 going to help. */
8567
8568 continue;
8569 }
8570
ef60b7ff 8571 if (!((*info->callbacks->reloc_overflow)
4ce794b7 8572 (info, sym_name, ppc64_elf_howto_table[r_type]->name,
411e1bfb 8573 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 8574 return FALSE;
ef60b7ff
AM		 8575 }
8576 else
8577 {
8578 (*_bfd_error_handler)
7b609f53 8579 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
ef60b7ff
AM		 8580 bfd_archive_filename (input_bfd),
8581 bfd_get_section_name (input_bfd, input_section),
7b609f53 8582 (long) rel->r_offset,
4ce794b7 8583 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 8584 sym_name,
8585 (int) r);
b34976b6 8586 ret = FALSE;
ef60b7ff 8587 }
5bd4f169 8588 }
5bd4f169
AM		 8589 }
8590
5bd4f169
AM		 8591 return ret;
8592}
8593
8594/* Finish up dynamic symbol handling. We set the contents of various
8595 dynamic sections here. */
8596
b34976b6 8597static bfd_boolean
4ce794b7
AM		 8598ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
8599 struct bfd_link_info *info,
8600 struct elf_link_hash_entry *h,
8601 Elf_Internal_Sym *sym)
5bd4f169 8602{
65f38f15 8603 struct ppc_link_hash_table *htab;
5bd4f169
AM		 8604 bfd *dynobj;
8605
65f38f15
AM		 8606 htab = ppc_hash_table (info);
8607 dynobj = htab->elf.dynobj;
5bd4f169 8608
411e1bfb 8609 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
5bd4f169 8610 {
411e1bfb 8611 struct plt_entry *ent;
65f38f15 8612 Elf_Internal_Rela rela;
947216bf 8613 bfd_byte *loc;
5bd4f169 8614
411e1bfb
AM		 8615 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8616 if (ent->plt.offset != (bfd_vma) -1)
8617 {
8618 /* This symbol has an entry in the procedure linkage
8619 table. Set it up. */
5bd4f169 8620
4ce794b7
AM		 8621 if (htab->plt == NULL
8622 || htab->relplt == NULL
8623 || htab->glink == NULL)
411e1bfb 8624 abort ();
5bd4f169 8625
411e1bfb
AM		 8626 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8627 fill in the PLT entry. */
4ce794b7
AM		 8628 rela.r_offset = (htab->plt->output_section->vma
8629 + htab->plt->output_offset
411e1bfb
AM		 8630 + ent->plt.offset);
8631 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
8632 rela.r_addend = ent->addend;
5bd4f169 8633
4ce794b7 8634 loc = htab->relplt->contents;
411e1bfb
AM		 8635 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
8636 * sizeof (Elf64_External_Rela));
8637 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8638 }
5bd4f169
AM		 8639 }
8640
8641 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
8642 {
5bd4f169 8643 Elf_Internal_Rela rela;
947216bf 8644 bfd_byte *loc;
5bd4f169 8645
65f38f15 8646 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 8647
65f38f15
AM		 8648 if (h->dynindx == -1
8649 || (h->root.type != bfd_link_hash_defined
8650 && h->root.type != bfd_link_hash_defweak)
4ce794b7 8651 || htab->relbss == NULL)
65f38f15 8652 abort ();
5bd4f169
AM		 8653
8654 rela.r_offset = (h->root.u.def.value
8655 + h->root.u.def.section->output_section->vma
8656 + h->root.u.def.section->output_offset);
8657 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
8658 rela.r_addend = 0;
4ce794b7
AM		 8659 loc = htab->relbss->contents;
8660 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 8661 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 8662 }
8663
5bd4f169
AM		 8664 /* Mark some specially defined symbols as absolute. */
8665 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
8666 sym->st_shndx = SHN_ABS;
8667
b34976b6 8668 return TRUE;
5bd4f169
AM		 8669}
8670
65f38f15
AM		 8671/* Used to decide how to sort relocs in an optimal manner for the
8672 dynamic linker, before writing them out. */
8673
8674static enum elf_reloc_type_class
4ce794b7 8675ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 8676{
04c9666a 8677 enum elf_ppc64_reloc_type r_type;
a33d1f77 8678
4ce794b7 8679 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 8680 switch (r_type)
65f38f15
AM		 8681 {
8682 case R_PPC64_RELATIVE:
8683 return reloc_class_relative;
8684 case R_PPC64_JMP_SLOT:
8685 return reloc_class_plt;
8686 case R_PPC64_COPY:
8687 return reloc_class_copy;
8688 default:
8689 return reloc_class_normal;
8690 }
8691}
8692
5bd4f169
AM		 8693/* Finish up the dynamic sections. */
8694
b34976b6 8695static bfd_boolean
4ce794b7
AM		 8696ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
8697 struct bfd_link_info *info)
5bd4f169 8698{
65f38f15
AM		 8699 struct ppc_link_hash_table *htab;
8700 bfd *dynobj;
5bd4f169 8701 asection *sdyn;
5bd4f169 8702
65f38f15
AM		 8703 htab = ppc_hash_table (info);
8704 dynobj = htab->elf.dynobj;
5bd4f169
AM		 8705 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8706
65f38f15 8707 if (htab->elf.dynamic_sections_created)
5bd4f169 8708 {
5bd4f169
AM		 8709 Elf64_External_Dyn *dyncon, *dynconend;
8710
4ce794b7 8711 if (sdyn == NULL || htab->got == NULL)
65f38f15 8712 abort ();
5bd4f169
AM		 8713
8714 dyncon = (Elf64_External_Dyn *) sdyn->contents;
8715 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
8716 for (; dyncon < dynconend; dyncon++)
8717 {
8718 Elf_Internal_Dyn dyn;
19397422 8719 asection *s;
5bd4f169
AM		 8720
8721 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
8722
8723 switch (dyn.d_tag)
8724 {
65f38f15
AM		 8725 default:
8726 continue;
5bd4f169 8727
5d1634d7 8728 case DT_PPC64_GLINK:
4ce794b7 8729 s = htab->glink;
6348e046 8730 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 8731 /* We stupidly defined DT_PPC64_GLINK to be the start
8732 of glink rather than the first entry point, which is
8733 what ld.so needs, and now have a bigger stub to
8734 support automatic multiple TOCs. */
8735 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 8736 break;
8737
19397422
AM		 8738 case DT_PPC64_OPD:
8739 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 8740 if (s == NULL)
8741 continue;
8742 dyn.d_un.d_ptr = s->vma;
19397422
AM		 8743 break;
8744
8745 case DT_PPC64_OPDSZ:
8746 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 8747 if (s == NULL)
8748 continue;
8749 dyn.d_un.d_val = s->_raw_size;
19397422
AM		 8750 break;
8751
65f38f15 8752 case DT_PLTGOT:
4ce794b7 8753 s = htab->plt;
6348e046 8754 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 8755 break;
8756
8757 case DT_JMPREL:
4ce794b7 8758 s = htab->relplt;
6348e046 8759 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 8760 break;
5bd4f169 8761
65f38f15 8762 case DT_PLTRELSZ:
4ce794b7 8763 dyn.d_un.d_val = htab->relplt->_raw_size;
5d1634d7
AM		 8764 break;
8765
8766 case DT_RELASZ:
8767 /* Don't count procedure linkage table relocs in the
8768 overall reloc count. */
4ce794b7 8769 s = htab->relplt;
6348e046
AM		 8770 if (s == NULL)
8771 continue;
8772 dyn.d_un.d_val -= s->_raw_size;
8773 break;
8774
8775 case DT_RELA:
8776 /* We may not be using the standard ELF linker script.
8777 If .rela.plt is the first .rela section, we adjust
8778 DT_RELA to not include it. */
4ce794b7 8779 s = htab->relplt;
6348e046
AM		 8780 if (s == NULL)
8781 continue;
8782 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
8783 continue;
8784 dyn.d_un.d_ptr += s->_raw_size;
65f38f15 8785 break;
5bd4f169 8786 }
5bd4f169 8787
65f38f15 8788 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 8789 }
5bd4f169
AM		 8790 }
8791
4ce794b7 8792 if (htab->got != NULL && htab->got->_raw_size != 0)
5d1634d7
AM		 8793 {
8794 /* Fill in the first entry in the global offset table.
8795 We use it to hold the link-time TOCbase. */
8796 bfd_put_64 (output_bfd,
60ee0d4a 8797 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 8798 htab->got->contents);
5d1634d7
AM		 8799
8800 /* Set .got entry size. */
4ce794b7 8801 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 8802 }
8803
4ce794b7 8804 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5d1634d7
AM		 8805 {
8806 /* Set .plt entry size. */
4ce794b7 8807 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 8808 = PLT_ENTRY_SIZE;
8809 }
8810
e717da7e
AM		 8811 /* We need to handle writing out multiple GOT sections ourselves,
8812 since we didn't add them to DYNOBJ. */
8813 while ((dynobj = dynobj->link_next) != NULL)
8814 {
8815 asection *s;
8816 s = ppc64_elf_tdata (dynobj)->got;
8817 if (s != NULL
8818 && s->_raw_size != 0
8819 && s->output_section != bfd_abs_section_ptr
8820 && !bfd_set_section_contents (output_bfd, s->output_section,
8821 s->contents, s->output_offset,
8822 s->_raw_size))
8823 return FALSE;
8824 s = ppc64_elf_tdata (dynobj)->relgot;
8825 if (s != NULL
8826 && s->_raw_size != 0
8827 && s->output_section != bfd_abs_section_ptr
8828 && !bfd_set_section_contents (output_bfd, s->output_section,
8829 s->contents, s->output_offset,
8830 s->_raw_size))
8831 return FALSE;
8832 }
f6c52c13 8833
b34976b6 8834 return TRUE;
5bd4f169
AM		 8835}
8836
5bd4f169 8837#include "elf64-target.h"
GDB Binutils - Deliverables
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