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[thirdparty/binutils-gdb.git] / bfd / elf64-ppc.c
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5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
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"
04c9666a 31#include "elf/ppc64.h"
5d1634d7 32#include "elf64-ppc.h"
5bd4f169 33
805fc799 34static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 35 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 36static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 38static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 40static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 42static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 44static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 46static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 48static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
5bd4f169
AM		 50
51
ad8e1ba5
AM		 52#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
53#define TARGET_LITTLE_NAME "elf64-powerpcle"
54#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
55#define TARGET_BIG_NAME "elf64-powerpc"
56#define ELF_ARCH bfd_arch_powerpc
57#define ELF_MACHINE_CODE EM_PPC64
58#define ELF_MAXPAGESIZE 0x10000
59#define elf_info_to_howto ppc64_elf_info_to_howto
60
61#define elf_backend_want_got_sym 0
62#define elf_backend_want_plt_sym 0
63#define elf_backend_plt_alignment 3
64#define elf_backend_plt_not_loaded 1
65#define elf_backend_got_symbol_offset 0
66#define elf_backend_got_header_size 8
67#define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
68#define elf_backend_can_gc_sections 1
69#define elf_backend_can_refcount 1
70#define elf_backend_rela_normal 1
71
e717da7e 72#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5
AM		 73#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
74#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
75#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
76#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
77#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
78
79#define elf_backend_object_p ppc64_elf_object_p
80#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
81#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
82#define elf_backend_check_relocs ppc64_elf_check_relocs
83#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
84#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
85#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
86#define elf_backend_hide_symbol ppc64_elf_hide_symbol
87#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
88#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
89#define elf_backend_relocate_section ppc64_elf_relocate_section
90#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
91#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
92#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
2f89ff8d 93#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 94
5bd4f169
AM		 95/* The name of the dynamic interpreter. This is put in the .interp
96 section. */
97#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
98
99/* The size in bytes of an entry in the procedure linkage table. */
100#define PLT_ENTRY_SIZE 24
101
102/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 103#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM		 104
105/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 106#define TOC_BASE_OFF 0x8000
107
108/* Offset of tp and dtp pointers from start of TLS block. */
109#define TP_OFFSET 0x7000
110#define DTP_OFFSET 0x8000
5bd4f169 111
ad8e1ba5
AM		 112/* .plt call stub instructions. The normal stub is like this, but
113 sometimes the .plt entry crosses a 64k boundary and we need to
114 insert an addis to adjust r12. */
115#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM		 116#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
117#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
118#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
119#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
120#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
121 /* ld %r11,xxx+16@l(%r12) */
122#define BCTR 0x4e800420 /* bctr */
123
5d1634d7 124
ad8e1ba5
AM		 125#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
126#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
127
128#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
129
130/* glink call stub instructions. We enter with the index in R0, and the
131 address of glink entry in CTR. From that, we can calculate PLT0. */
132#define GLINK_CALL_STUB_SIZE (16*4)
133#define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
134#define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
135#define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
136#define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
137#define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
138#define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
139#define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
140 /* sub %r12,%r12,%r11 */
141#define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
142#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
143 /* ld %r11,xxx@l(%r12) */
144#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
145 /* ld %r2,8(%r12) */
146 /* mtctr %r11 */
147 /* ld %r11,16(%r12) */
148 /* bctr */
5d1634d7
AM		 149
150/* Pad with this. */
151#define NOP 0x60000000
152
721956f4
AM		 153/* Some other nops. */
154#define CROR_151515 0x4def7b82
155#define CROR_313131 0x4ffffb82
156
cedb70c5 157/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 158#define LI_R0_0 0x38000000 /* li %r0,0 */
159#define B_DOT 0x48000000 /* b . */
160
161/* After that, we need two instructions to load the index, followed by
162 a branch. */
163#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 164#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 165
82bd7b59
AM		 166/* Instructions to save and restore floating point regs. */
167#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
168#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
169#define BLR 0x4e800020 /* blr */
170
41bd81ab
AM		 171/* Since .opd is an array of descriptors and each entry will end up
172 with identical R_PPC64_RELATIVE relocs, there is really no need to
173 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 174 relocate .opd without reloc entries. */
41bd81ab
AM		 175#ifndef NO_OPD_RELOCS
176#define NO_OPD_RELOCS 0
177#endif
5bd4f169 178\f
f5e87a1d 179#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 180
5bd4f169 181/* Relocation HOWTO's. */
04c9666a 182static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 183
184static reloc_howto_type ppc64_elf_howto_raw[] = {
185 /* This reloc does nothing. */
186 HOWTO (R_PPC64_NONE, /* type */
187 0, /* rightshift */
411e1bfb
AM		 188 2, /* size (0 = byte, 1 = short, 2 = long) */
189 32, /* bitsize */
b34976b6 190 FALSE, /* pc_relative */
5bd4f169 191 0, /* bitpos */
f5e87a1d 192 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 193 bfd_elf_generic_reloc, /* special_function */
194 "R_PPC64_NONE", /* name */
b34976b6 195 FALSE, /* partial_inplace */
d006db6c 196 0, /* src_mask */
5bd4f169 197 0, /* dst_mask */
b34976b6 198 FALSE), /* pcrel_offset */
5bd4f169
AM		 199
200 /* A standard 32 bit relocation. */
201 HOWTO (R_PPC64_ADDR32, /* type */
202 0, /* rightshift */
203 2, /* size (0 = byte, 1 = short, 2 = long) */
204 32, /* bitsize */
b34976b6 205 FALSE, /* pc_relative */
5bd4f169
AM		 206 0, /* bitpos */
207 complain_overflow_bitfield, /* complain_on_overflow */
208 bfd_elf_generic_reloc, /* special_function */
209 "R_PPC64_ADDR32", /* name */
b34976b6 210 FALSE, /* partial_inplace */
5bd4f169
AM		 211 0, /* src_mask */
212 0xffffffff, /* dst_mask */
b34976b6 213 FALSE), /* pcrel_offset */
5bd4f169
AM		 214
215 /* An absolute 26 bit branch; the lower two bits must be zero.
216 FIXME: we don't check that, we just clear them. */
217 HOWTO (R_PPC64_ADDR24, /* type */
218 0, /* rightshift */
219 2, /* size (0 = byte, 1 = short, 2 = long) */
220 26, /* bitsize */
b34976b6 221 FALSE, /* pc_relative */
5bd4f169
AM		 222 0, /* bitpos */
223 complain_overflow_bitfield, /* complain_on_overflow */
224 bfd_elf_generic_reloc, /* special_function */
225 "R_PPC64_ADDR24", /* name */
b34976b6 226 FALSE, /* partial_inplace */
d006db6c 227 0, /* src_mask */
f5e87a1d 228 0x03fffffc, /* dst_mask */
b34976b6 229 FALSE), /* pcrel_offset */
5bd4f169
AM		 230
231 /* A standard 16 bit relocation. */
232 HOWTO (R_PPC64_ADDR16, /* type */
233 0, /* rightshift */
234 1, /* size (0 = byte, 1 = short, 2 = long) */
235 16, /* bitsize */
b34976b6 236 FALSE, /* pc_relative */
5bd4f169
AM		 237 0, /* bitpos */
238 complain_overflow_bitfield, /* complain_on_overflow */
239 bfd_elf_generic_reloc, /* special_function */
240 "R_PPC64_ADDR16", /* name */
b34976b6 241 FALSE, /* partial_inplace */
5bd4f169
AM		 242 0, /* src_mask */
243 0xffff, /* dst_mask */
b34976b6 244 FALSE), /* pcrel_offset */
5bd4f169
AM		 245
246 /* A 16 bit relocation without overflow. */
247 HOWTO (R_PPC64_ADDR16_LO, /* type */
248 0, /* rightshift */
249 1, /* size (0 = byte, 1 = short, 2 = long) */
250 16, /* bitsize */
b34976b6 251 FALSE, /* pc_relative */
5bd4f169
AM		 252 0, /* bitpos */
253 complain_overflow_dont,/* complain_on_overflow */
254 bfd_elf_generic_reloc, /* special_function */
255 "R_PPC64_ADDR16_LO", /* name */
b34976b6 256 FALSE, /* partial_inplace */
5bd4f169
AM		 257 0, /* src_mask */
258 0xffff, /* dst_mask */
b34976b6 259 FALSE), /* pcrel_offset */
5bd4f169
AM		 260
261 /* Bits 16-31 of an address. */
262 HOWTO (R_PPC64_ADDR16_HI, /* type */
263 16, /* rightshift */
264 1, /* size (0 = byte, 1 = short, 2 = long) */
265 16, /* bitsize */
b34976b6 266 FALSE, /* pc_relative */
5bd4f169
AM		 267 0, /* bitpos */
268 complain_overflow_dont, /* complain_on_overflow */
269 bfd_elf_generic_reloc, /* special_function */
270 "R_PPC64_ADDR16_HI", /* name */
b34976b6 271 FALSE, /* partial_inplace */
5bd4f169
AM		 272 0, /* src_mask */
273 0xffff, /* dst_mask */
b34976b6 274 FALSE), /* pcrel_offset */
5bd4f169
AM		 275
276 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
277 bits, treated as a signed number, is negative. */
278 HOWTO (R_PPC64_ADDR16_HA, /* type */
279 16, /* rightshift */
280 1, /* size (0 = byte, 1 = short, 2 = long) */
281 16, /* bitsize */
b34976b6 282 FALSE, /* pc_relative */
5bd4f169
AM		 283 0, /* bitpos */
284 complain_overflow_dont, /* complain_on_overflow */
805fc799 285 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 286 "R_PPC64_ADDR16_HA", /* name */
b34976b6 287 FALSE, /* partial_inplace */
5bd4f169
AM		 288 0, /* src_mask */
289 0xffff, /* dst_mask */
b34976b6 290 FALSE), /* pcrel_offset */
5bd4f169
AM		 291
292 /* An absolute 16 bit branch; the lower two bits must be zero.
293 FIXME: we don't check that, we just clear them. */
294 HOWTO (R_PPC64_ADDR14, /* type */
295 0, /* rightshift */
296 2, /* size (0 = byte, 1 = short, 2 = long) */
297 16, /* bitsize */
b34976b6 298 FALSE, /* pc_relative */
5bd4f169
AM		 299 0, /* bitpos */
300 complain_overflow_bitfield, /* complain_on_overflow */
301 bfd_elf_generic_reloc, /* special_function */
302 "R_PPC64_ADDR14", /* name */
b34976b6 303 FALSE, /* partial_inplace */
d006db6c 304 0, /* src_mask */
f5e87a1d 305 0x0000fffc, /* dst_mask */
b34976b6 306 FALSE), /* pcrel_offset */
5bd4f169
AM		 307
308 /* An absolute 16 bit branch, for which bit 10 should be set to
309 indicate that the branch is expected to be taken. The lower two
310 bits must be zero. */
311 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
312 0, /* rightshift */
313 2, /* size (0 = byte, 1 = short, 2 = long) */
314 16, /* bitsize */
b34976b6 315 FALSE, /* pc_relative */
5bd4f169
AM		 316 0, /* bitpos */
317 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 318 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 319 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 320 FALSE, /* partial_inplace */
d006db6c 321 0, /* src_mask */
f5e87a1d 322 0x0000fffc, /* dst_mask */
b34976b6 323 FALSE), /* pcrel_offset */
5bd4f169
AM		 324
325 /* An absolute 16 bit branch, for which bit 10 should be set to
326 indicate that the branch is not expected to be taken. The lower
327 two bits must be zero. */
328 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
329 0, /* rightshift */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
331 16, /* bitsize */
b34976b6 332 FALSE, /* pc_relative */
5bd4f169
AM		 333 0, /* bitpos */
334 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 335 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 336 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 337 FALSE, /* partial_inplace */
d006db6c 338 0, /* src_mask */
f5e87a1d 339 0x0000fffc, /* dst_mask */
b34976b6 340 FALSE), /* pcrel_offset */
5bd4f169
AM		 341
342 /* A relative 26 bit branch; the lower two bits must be zero. */
343 HOWTO (R_PPC64_REL24, /* type */
344 0, /* rightshift */
345 2, /* size (0 = byte, 1 = short, 2 = long) */
346 26, /* bitsize */
b34976b6 347 TRUE, /* pc_relative */
5bd4f169
AM		 348 0, /* bitpos */
349 complain_overflow_signed, /* complain_on_overflow */
350 bfd_elf_generic_reloc, /* special_function */
351 "R_PPC64_REL24", /* name */
b34976b6 352 FALSE, /* partial_inplace */
d006db6c 353 0, /* src_mask */
f5e87a1d 354 0x03fffffc, /* dst_mask */
b34976b6 355 TRUE), /* pcrel_offset */
5bd4f169
AM		 356
357 /* A relative 16 bit branch; the lower two bits must be zero. */
358 HOWTO (R_PPC64_REL14, /* type */
359 0, /* rightshift */
360 2, /* size (0 = byte, 1 = short, 2 = long) */
361 16, /* bitsize */
b34976b6 362 TRUE, /* pc_relative */
5bd4f169
AM		 363 0, /* bitpos */
364 complain_overflow_signed, /* complain_on_overflow */
365 bfd_elf_generic_reloc, /* special_function */
366 "R_PPC64_REL14", /* name */
b34976b6 367 FALSE, /* partial_inplace */
d006db6c 368 0, /* src_mask */
f5e87a1d 369 0x0000fffc, /* dst_mask */
b34976b6 370 TRUE), /* pcrel_offset */
5bd4f169
AM		 371
372 /* A relative 16 bit branch. Bit 10 should be set to indicate that
373 the branch is expected to be taken. The lower two bits must be
374 zero. */
375 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
376 0, /* rightshift */
377 2, /* size (0 = byte, 1 = short, 2 = long) */
378 16, /* bitsize */
b34976b6 379 TRUE, /* pc_relative */
5bd4f169
AM		 380 0, /* bitpos */
381 complain_overflow_signed, /* complain_on_overflow */
805fc799 382 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 383 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 384 FALSE, /* partial_inplace */
d006db6c 385 0, /* src_mask */
f5e87a1d 386 0x0000fffc, /* dst_mask */
b34976b6 387 TRUE), /* pcrel_offset */
5bd4f169
AM		 388
389 /* A relative 16 bit branch. Bit 10 should be set to indicate that
390 the branch is not expected to be taken. The lower two bits must
391 be zero. */
392 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
393 0, /* rightshift */
394 2, /* size (0 = byte, 1 = short, 2 = long) */
395 16, /* bitsize */
b34976b6 396 TRUE, /* pc_relative */
5bd4f169
AM		 397 0, /* bitpos */
398 complain_overflow_signed, /* complain_on_overflow */
805fc799 399 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 400 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 401 FALSE, /* partial_inplace */
d006db6c 402 0, /* src_mask */
f5e87a1d 403 0x0000fffc, /* dst_mask */
b34976b6 404 TRUE), /* pcrel_offset */
5bd4f169
AM		 405
406 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
407 symbol. */
408 HOWTO (R_PPC64_GOT16, /* type */
409 0, /* rightshift */
410 1, /* size (0 = byte, 1 = short, 2 = long) */
411 16, /* bitsize */
b34976b6 412 FALSE, /* pc_relative */
5bd4f169
AM		 413 0, /* bitpos */
414 complain_overflow_signed, /* complain_on_overflow */
805fc799 415 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 416 "R_PPC64_GOT16", /* name */
b34976b6 417 FALSE, /* partial_inplace */
5bd4f169
AM		 418 0, /* src_mask */
419 0xffff, /* dst_mask */
b34976b6 420 FALSE), /* pcrel_offset */
5bd4f169
AM		 421
422 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
423 the symbol. */
424 HOWTO (R_PPC64_GOT16_LO, /* type */
425 0, /* rightshift */
426 1, /* size (0 = byte, 1 = short, 2 = long) */
427 16, /* bitsize */
b34976b6 428 FALSE, /* pc_relative */
5bd4f169
AM		 429 0, /* bitpos */
430 complain_overflow_dont, /* complain_on_overflow */
805fc799 431 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 432 "R_PPC64_GOT16_LO", /* name */
b34976b6 433 FALSE, /* partial_inplace */
5bd4f169
AM		 434 0, /* src_mask */
435 0xffff, /* dst_mask */
b34976b6 436 FALSE), /* pcrel_offset */
5bd4f169
AM		 437
438 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
439 the symbol. */
440 HOWTO (R_PPC64_GOT16_HI, /* type */
441 16, /* rightshift */
442 1, /* size (0 = byte, 1 = short, 2 = long) */
443 16, /* bitsize */
b34976b6 444 FALSE, /* pc_relative */
5bd4f169
AM		 445 0, /* bitpos */
446 complain_overflow_dont,/* complain_on_overflow */
805fc799 447 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 448 "R_PPC64_GOT16_HI", /* name */
b34976b6 449 FALSE, /* partial_inplace */
5bd4f169
AM		 450 0, /* src_mask */
451 0xffff, /* dst_mask */
b34976b6 452 FALSE), /* pcrel_offset */
5bd4f169
AM		 453
454 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
455 the symbol. */
456 HOWTO (R_PPC64_GOT16_HA, /* type */
457 16, /* rightshift */
458 1, /* size (0 = byte, 1 = short, 2 = long) */
459 16, /* bitsize */
b34976b6 460 FALSE, /* pc_relative */
5bd4f169
AM		 461 0, /* bitpos */
462 complain_overflow_dont,/* complain_on_overflow */
805fc799 463 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 464 "R_PPC64_GOT16_HA", /* name */
b34976b6 465 FALSE, /* partial_inplace */
5bd4f169
AM		 466 0, /* src_mask */
467 0xffff, /* dst_mask */
b34976b6 468 FALSE), /* pcrel_offset */
5bd4f169
AM		 469
470 /* This is used only by the dynamic linker. The symbol should exist
471 both in the object being run and in some shared library. The
472 dynamic linker copies the data addressed by the symbol from the
473 shared library into the object, because the object being
474 run has to have the data at some particular address. */
475 HOWTO (R_PPC64_COPY, /* type */
476 0, /* rightshift */
f5e87a1d
AM		 477 0, /* this one is variable size */
478 0, /* bitsize */
b34976b6 479 FALSE, /* pc_relative */
5bd4f169 480 0, /* bitpos */
f5e87a1d
AM		 481 complain_overflow_dont, /* complain_on_overflow */
482 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 483 "R_PPC64_COPY", /* name */
b34976b6 484 FALSE, /* partial_inplace */
5bd4f169
AM		 485 0, /* src_mask */
486 0, /* dst_mask */
b34976b6 487 FALSE), /* pcrel_offset */
5bd4f169
AM		 488
489 /* Like R_PPC64_ADDR64, but used when setting global offset table
490 entries. */
491 HOWTO (R_PPC64_GLOB_DAT, /* type */
492 0, /* rightshift */
493 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
494 64, /* bitsize */
b34976b6 495 FALSE, /* pc_relative */
5bd4f169
AM		 496 0, /* bitpos */
497 complain_overflow_dont, /* complain_on_overflow */
805fc799 498 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 499 "R_PPC64_GLOB_DAT", /* name */
b34976b6 500 FALSE, /* partial_inplace */
5bd4f169 501 0, /* src_mask */
f5e87a1d 502 ONES (64), /* dst_mask */
b34976b6 503 FALSE), /* pcrel_offset */
5bd4f169
AM		 504
505 /* Created by the link editor. Marks a procedure linkage table
506 entry for a symbol. */
507 HOWTO (R_PPC64_JMP_SLOT, /* type */
508 0, /* rightshift */
509 0, /* size (0 = byte, 1 = short, 2 = long) */
510 0, /* bitsize */
b34976b6 511 FALSE, /* pc_relative */
5bd4f169
AM		 512 0, /* bitpos */
513 complain_overflow_dont, /* complain_on_overflow */
805fc799 514 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 515 "R_PPC64_JMP_SLOT", /* name */
b34976b6 516 FALSE, /* partial_inplace */
5bd4f169
AM		 517 0, /* src_mask */
518 0, /* dst_mask */
b34976b6 519 FALSE), /* pcrel_offset */
5bd4f169
AM		 520
521 /* Used only by the dynamic linker. When the object is run, this
522 doubleword64 is set to the load address of the object, plus the
523 addend. */
524 HOWTO (R_PPC64_RELATIVE, /* type */
525 0, /* rightshift */
526 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
527 64, /* bitsize */
b34976b6 528 FALSE, /* pc_relative */
5bd4f169
AM		 529 0, /* bitpos */
530 complain_overflow_dont, /* complain_on_overflow */
531 bfd_elf_generic_reloc, /* special_function */
532 "R_PPC64_RELATIVE", /* name */
b34976b6 533 FALSE, /* partial_inplace */
5bd4f169 534 0, /* src_mask */
f5e87a1d 535 ONES (64), /* dst_mask */
b34976b6 536 FALSE), /* pcrel_offset */
5bd4f169
AM		 537
538 /* Like R_PPC64_ADDR32, but may be unaligned. */
539 HOWTO (R_PPC64_UADDR32, /* type */
540 0, /* rightshift */
541 2, /* size (0 = byte, 1 = short, 2 = long) */
542 32, /* bitsize */
b34976b6 543 FALSE, /* pc_relative */
5bd4f169
AM		 544 0, /* bitpos */
545 complain_overflow_bitfield, /* complain_on_overflow */
546 bfd_elf_generic_reloc, /* special_function */
547 "R_PPC64_UADDR32", /* name */
b34976b6 548 FALSE, /* partial_inplace */
5bd4f169
AM		 549 0, /* src_mask */
550 0xffffffff, /* dst_mask */
b34976b6 551 FALSE), /* pcrel_offset */
5bd4f169
AM		 552
553 /* Like R_PPC64_ADDR16, but may be unaligned. */
554 HOWTO (R_PPC64_UADDR16, /* type */
555 0, /* rightshift */
556 1, /* size (0 = byte, 1 = short, 2 = long) */
557 16, /* bitsize */
b34976b6 558 FALSE, /* pc_relative */
5bd4f169
AM		 559 0, /* bitpos */
560 complain_overflow_bitfield, /* complain_on_overflow */
561 bfd_elf_generic_reloc, /* special_function */
562 "R_PPC64_UADDR16", /* name */
b34976b6 563 FALSE, /* partial_inplace */
5bd4f169
AM		 564 0, /* src_mask */
565 0xffff, /* dst_mask */
b34976b6 566 FALSE), /* pcrel_offset */
5bd4f169
AM		 567
568 /* 32-bit PC relative. */
569 HOWTO (R_PPC64_REL32, /* type */
570 0, /* rightshift */
571 2, /* size (0 = byte, 1 = short, 2 = long) */
572 32, /* bitsize */
b34976b6 573 TRUE, /* pc_relative */
5bd4f169 574 0, /* bitpos */
cedb70c5 575 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM		 576 complain_overflow_signed, /* complain_on_overflow */
577 bfd_elf_generic_reloc, /* special_function */
578 "R_PPC64_REL32", /* name */
b34976b6 579 FALSE, /* partial_inplace */
5bd4f169
AM		 580 0, /* src_mask */
581 0xffffffff, /* dst_mask */
b34976b6 582 TRUE), /* pcrel_offset */
5bd4f169 583
10ed1bba 584 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 585 HOWTO (R_PPC64_PLT32, /* type */
586 0, /* rightshift */
587 2, /* size (0 = byte, 1 = short, 2 = long) */
588 32, /* bitsize */
b34976b6 589 FALSE, /* pc_relative */
5bd4f169
AM		 590 0, /* bitpos */
591 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 592 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 593 "R_PPC64_PLT32", /* name */
b34976b6 594 FALSE, /* partial_inplace */
5bd4f169 595 0, /* src_mask */
f5e87a1d 596 0xffffffff, /* dst_mask */
b34976b6 597 FALSE), /* pcrel_offset */
5bd4f169
AM		 598
599 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
600 FIXME: R_PPC64_PLTREL32 not supported. */
601 HOWTO (R_PPC64_PLTREL32, /* type */
602 0, /* rightshift */
603 2, /* size (0 = byte, 1 = short, 2 = long) */
604 32, /* bitsize */
b34976b6 605 TRUE, /* pc_relative */
5bd4f169
AM		 606 0, /* bitpos */
607 complain_overflow_signed, /* complain_on_overflow */
608 bfd_elf_generic_reloc, /* special_function */
609 "R_PPC64_PLTREL32", /* name */
b34976b6 610 FALSE, /* partial_inplace */
5bd4f169 611 0, /* src_mask */
f5e87a1d 612 0xffffffff, /* dst_mask */
b34976b6 613 TRUE), /* pcrel_offset */
5bd4f169
AM		 614
615 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
616 the symbol. */
617 HOWTO (R_PPC64_PLT16_LO, /* type */
618 0, /* rightshift */
619 1, /* size (0 = byte, 1 = short, 2 = long) */
620 16, /* bitsize */
b34976b6 621 FALSE, /* pc_relative */
5bd4f169
AM		 622 0, /* bitpos */
623 complain_overflow_dont, /* complain_on_overflow */
805fc799 624 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 625 "R_PPC64_PLT16_LO", /* name */
b34976b6 626 FALSE, /* partial_inplace */
5bd4f169
AM		 627 0, /* src_mask */
628 0xffff, /* dst_mask */
b34976b6 629 FALSE), /* pcrel_offset */
5bd4f169
AM		 630
631 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
632 the symbol. */
633 HOWTO (R_PPC64_PLT16_HI, /* type */
634 16, /* rightshift */
635 1, /* size (0 = byte, 1 = short, 2 = long) */
636 16, /* bitsize */
b34976b6 637 FALSE, /* pc_relative */
5bd4f169
AM		 638 0, /* bitpos */
639 complain_overflow_dont, /* complain_on_overflow */
805fc799 640 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 641 "R_PPC64_PLT16_HI", /* name */
b34976b6 642 FALSE, /* partial_inplace */
5bd4f169
AM		 643 0, /* src_mask */
644 0xffff, /* dst_mask */
b34976b6 645 FALSE), /* pcrel_offset */
5bd4f169
AM		 646
647 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
648 the symbol. */
649 HOWTO (R_PPC64_PLT16_HA, /* type */
650 16, /* rightshift */
651 1, /* size (0 = byte, 1 = short, 2 = long) */
652 16, /* bitsize */
b34976b6 653 FALSE, /* pc_relative */
5bd4f169
AM		 654 0, /* bitpos */
655 complain_overflow_dont, /* complain_on_overflow */
805fc799 656 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 657 "R_PPC64_PLT16_HA", /* name */
b34976b6 658 FALSE, /* partial_inplace */
5bd4f169
AM		 659 0, /* src_mask */
660 0xffff, /* dst_mask */
b34976b6 661 FALSE), /* pcrel_offset */
5bd4f169 662
c061c2d8 663 /* 16-bit section relative relocation. */
5bd4f169
AM		 664 HOWTO (R_PPC64_SECTOFF, /* type */
665 0, /* rightshift */
c061c2d8
AM		 666 1, /* size (0 = byte, 1 = short, 2 = long) */
667 16, /* bitsize */
b34976b6 668 FALSE, /* pc_relative */
5bd4f169
AM		 669 0, /* bitpos */
670 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 671 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 672 "R_PPC64_SECTOFF", /* name */
b34976b6 673 FALSE, /* partial_inplace */
5bd4f169 674 0, /* src_mask */
c061c2d8 675 0xffff, /* dst_mask */
b34976b6 676 FALSE), /* pcrel_offset */
5bd4f169 677
c061c2d8 678 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 679 HOWTO (R_PPC64_SECTOFF_LO, /* type */
680 0, /* rightshift */
681 1, /* size (0 = byte, 1 = short, 2 = long) */
682 16, /* bitsize */
b34976b6 683 FALSE, /* pc_relative */
5bd4f169
AM		 684 0, /* bitpos */
685 complain_overflow_dont, /* complain_on_overflow */
805fc799 686 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 687 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 688 FALSE, /* partial_inplace */
5bd4f169
AM		 689 0, /* src_mask */
690 0xffff, /* dst_mask */
b34976b6 691 FALSE), /* pcrel_offset */
5bd4f169
AM		 692
693 /* 16-bit upper half section relative relocation. */
694 HOWTO (R_PPC64_SECTOFF_HI, /* type */
695 16, /* rightshift */
696 1, /* size (0 = byte, 1 = short, 2 = long) */
697 16, /* bitsize */
b34976b6 698 FALSE, /* pc_relative */
5bd4f169
AM		 699 0, /* bitpos */
700 complain_overflow_dont, /* complain_on_overflow */
805fc799 701 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 702 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 703 FALSE, /* partial_inplace */
5bd4f169
AM		 704 0, /* src_mask */
705 0xffff, /* dst_mask */
b34976b6 706 FALSE), /* pcrel_offset */
5bd4f169
AM		 707
708 /* 16-bit upper half adjusted section relative relocation. */
709 HOWTO (R_PPC64_SECTOFF_HA, /* type */
710 16, /* rightshift */
711 1, /* size (0 = byte, 1 = short, 2 = long) */
712 16, /* bitsize */
b34976b6 713 FALSE, /* pc_relative */
5bd4f169
AM		 714 0, /* bitpos */
715 complain_overflow_dont, /* complain_on_overflow */
805fc799 716 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 717 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 718 FALSE, /* partial_inplace */
5bd4f169
AM		 719 0, /* src_mask */
720 0xffff, /* dst_mask */
b34976b6 721 FALSE), /* pcrel_offset */
5bd4f169 722
04c9666a
AM		 723 /* Like R_PPC64_REL24 without touching the two least significant bits. */
724 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 725 2, /* rightshift */
726 2, /* size (0 = byte, 1 = short, 2 = long) */
727 30, /* bitsize */
b34976b6 728 TRUE, /* pc_relative */
5bd4f169
AM		 729 0, /* bitpos */
730 complain_overflow_dont, /* complain_on_overflow */
731 bfd_elf_generic_reloc, /* special_function */
04c9666a 732 "R_PPC64_REL30", /* name */
b34976b6 733 FALSE, /* partial_inplace */
d006db6c 734 0, /* src_mask */
5bd4f169 735 0xfffffffc, /* dst_mask */
b34976b6 736 TRUE), /* pcrel_offset */
5bd4f169
AM		 737
738 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
739
740 /* A standard 64-bit relocation. */
741 HOWTO (R_PPC64_ADDR64, /* type */
742 0, /* rightshift */
743 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
744 64, /* bitsize */
b34976b6 745 FALSE, /* pc_relative */
5bd4f169
AM		 746 0, /* bitpos */
747 complain_overflow_dont, /* complain_on_overflow */
748 bfd_elf_generic_reloc, /* special_function */
749 "R_PPC64_ADDR64", /* name */
b34976b6 750 FALSE, /* partial_inplace */
5bd4f169 751 0, /* src_mask */
f5e87a1d 752 ONES (64), /* dst_mask */
b34976b6 753 FALSE), /* pcrel_offset */
5bd4f169
AM		 754
755 /* The bits 32-47 of an address. */
756 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
757 32, /* rightshift */
758 1, /* size (0 = byte, 1 = short, 2 = long) */
759 16, /* bitsize */
b34976b6 760 FALSE, /* pc_relative */
5bd4f169
AM		 761 0, /* bitpos */
762 complain_overflow_dont, /* complain_on_overflow */
763 bfd_elf_generic_reloc, /* special_function */
764 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 765 FALSE, /* partial_inplace */
5bd4f169
AM		 766 0, /* src_mask */
767 0xffff, /* dst_mask */
b34976b6 768 FALSE), /* pcrel_offset */
5bd4f169
AM		 769
770 /* The bits 32-47 of an address, plus 1 if the contents of the low
771 16 bits, treated as a signed number, is negative. */
772 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
773 32, /* rightshift */
774 1, /* size (0 = byte, 1 = short, 2 = long) */
775 16, /* bitsize */
b34976b6 776 FALSE, /* pc_relative */
5bd4f169
AM		 777 0, /* bitpos */
778 complain_overflow_dont, /* complain_on_overflow */
805fc799 779 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 780 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 781 FALSE, /* partial_inplace */
5bd4f169
AM		 782 0, /* src_mask */
783 0xffff, /* dst_mask */
b34976b6 784 FALSE), /* pcrel_offset */
5bd4f169
AM		 785
786 /* The bits 48-63 of an address. */
787 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
788 48, /* rightshift */
789 1, /* size (0 = byte, 1 = short, 2 = long) */
790 16, /* bitsize */
b34976b6 791 FALSE, /* pc_relative */
5bd4f169
AM		 792 0, /* bitpos */
793 complain_overflow_dont, /* complain_on_overflow */
794 bfd_elf_generic_reloc, /* special_function */
795 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 796 FALSE, /* partial_inplace */
5bd4f169
AM		 797 0, /* src_mask */
798 0xffff, /* dst_mask */
b34976b6 799 FALSE), /* pcrel_offset */
5bd4f169
AM		 800
801 /* The bits 48-63 of an address, plus 1 if the contents of the low
802 16 bits, treated as a signed number, is negative. */
803 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
804 48, /* rightshift */
805 1, /* size (0 = byte, 1 = short, 2 = long) */
806 16, /* bitsize */
b34976b6 807 FALSE, /* pc_relative */
5bd4f169
AM		 808 0, /* bitpos */
809 complain_overflow_dont, /* complain_on_overflow */
805fc799 810 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 811 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 812 FALSE, /* partial_inplace */
5bd4f169
AM		 813 0, /* src_mask */
814 0xffff, /* dst_mask */
b34976b6 815 FALSE), /* pcrel_offset */
5bd4f169
AM		 816
817 /* Like ADDR64, but may be unaligned. */
818 HOWTO (R_PPC64_UADDR64, /* type */
819 0, /* rightshift */
820 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
821 64, /* bitsize */
b34976b6 822 FALSE, /* pc_relative */
5bd4f169
AM		 823 0, /* bitpos */
824 complain_overflow_dont, /* complain_on_overflow */
825 bfd_elf_generic_reloc, /* special_function */
826 "R_PPC64_UADDR64", /* name */
b34976b6 827 FALSE, /* partial_inplace */
5bd4f169 828 0, /* src_mask */
f5e87a1d 829 ONES (64), /* dst_mask */
b34976b6 830 FALSE), /* pcrel_offset */
5bd4f169
AM		 831
832 /* 64-bit relative relocation. */
833 HOWTO (R_PPC64_REL64, /* type */
834 0, /* rightshift */
835 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
836 64, /* bitsize */
b34976b6 837 TRUE, /* pc_relative */
5bd4f169
AM		 838 0, /* bitpos */
839 complain_overflow_dont, /* complain_on_overflow */
840 bfd_elf_generic_reloc, /* special_function */
841 "R_PPC64_REL64", /* name */
b34976b6 842 FALSE, /* partial_inplace */
5bd4f169 843 0, /* src_mask */
f5e87a1d 844 ONES (64), /* dst_mask */
b34976b6 845 TRUE), /* pcrel_offset */
5bd4f169 846
cedb70c5 847 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 848 HOWTO (R_PPC64_PLT64, /* type */
849 0, /* rightshift */
850 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
851 64, /* bitsize */
b34976b6 852 FALSE, /* pc_relative */
5bd4f169
AM		 853 0, /* bitpos */
854 complain_overflow_dont, /* complain_on_overflow */
805fc799 855 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 856 "R_PPC64_PLT64", /* name */
b34976b6 857 FALSE, /* partial_inplace */
5bd4f169 858 0, /* src_mask */
f5e87a1d 859 ONES (64), /* dst_mask */
b34976b6 860 FALSE), /* pcrel_offset */
5bd4f169
AM		 861
862 /* 64-bit PC relative relocation to the symbol's procedure linkage
863 table. */
864 /* FIXME: R_PPC64_PLTREL64 not supported. */
865 HOWTO (R_PPC64_PLTREL64, /* type */
866 0, /* rightshift */
867 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
868 64, /* bitsize */
b34976b6 869 TRUE, /* pc_relative */
5bd4f169
AM		 870 0, /* bitpos */
871 complain_overflow_dont, /* complain_on_overflow */
805fc799 872 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 873 "R_PPC64_PLTREL64", /* name */
b34976b6 874 FALSE, /* partial_inplace */
5bd4f169 875 0, /* src_mask */
f5e87a1d 876 ONES (64), /* dst_mask */
b34976b6 877 TRUE), /* pcrel_offset */
5bd4f169
AM		 878
879 /* 16 bit TOC-relative relocation. */
880
881 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
882 HOWTO (R_PPC64_TOC16, /* type */
883 0, /* rightshift */
884 1, /* size (0 = byte, 1 = short, 2 = long) */
885 16, /* bitsize */
b34976b6 886 FALSE, /* pc_relative */
5bd4f169
AM		 887 0, /* bitpos */
888 complain_overflow_signed, /* complain_on_overflow */
805fc799 889 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 890 "R_PPC64_TOC16", /* name */
b34976b6 891 FALSE, /* partial_inplace */
5bd4f169
AM		 892 0, /* src_mask */
893 0xffff, /* dst_mask */
b34976b6 894 FALSE), /* pcrel_offset */
5bd4f169
AM		 895
896 /* 16 bit TOC-relative relocation without overflow. */
897
898 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
899 HOWTO (R_PPC64_TOC16_LO, /* type */
900 0, /* rightshift */
901 1, /* size (0 = byte, 1 = short, 2 = long) */
902 16, /* bitsize */
b34976b6 903 FALSE, /* pc_relative */
5bd4f169
AM		 904 0, /* bitpos */
905 complain_overflow_dont, /* complain_on_overflow */
805fc799 906 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 907 "R_PPC64_TOC16_LO", /* name */
b34976b6 908 FALSE, /* partial_inplace */
5bd4f169
AM		 909 0, /* src_mask */
910 0xffff, /* dst_mask */
b34976b6 911 FALSE), /* pcrel_offset */
5bd4f169
AM		 912
913 /* 16 bit TOC-relative relocation, high 16 bits. */
914
915 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
916 HOWTO (R_PPC64_TOC16_HI, /* type */
917 16, /* rightshift */
918 1, /* size (0 = byte, 1 = short, 2 = long) */
919 16, /* bitsize */
b34976b6 920 FALSE, /* pc_relative */
5bd4f169
AM		 921 0, /* bitpos */
922 complain_overflow_dont, /* complain_on_overflow */
805fc799 923 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 924 "R_PPC64_TOC16_HI", /* name */
b34976b6 925 FALSE, /* partial_inplace */
5bd4f169
AM		 926 0, /* src_mask */
927 0xffff, /* dst_mask */
b34976b6 928 FALSE), /* pcrel_offset */
5bd4f169
AM		 929
930 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
931 contents of the low 16 bits, treated as a signed number, is
932 negative. */
933
934 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
935 HOWTO (R_PPC64_TOC16_HA, /* type */
936 16, /* rightshift */
937 1, /* size (0 = byte, 1 = short, 2 = long) */
938 16, /* bitsize */
b34976b6 939 FALSE, /* pc_relative */
5bd4f169
AM		 940 0, /* bitpos */
941 complain_overflow_dont, /* complain_on_overflow */
805fc799 942 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 943 "R_PPC64_TOC16_HA", /* name */
b34976b6 944 FALSE, /* partial_inplace */
5bd4f169
AM		 945 0, /* src_mask */
946 0xffff, /* dst_mask */
b34976b6 947 FALSE), /* pcrel_offset */
5bd4f169
AM		 948
949 /* 64-bit relocation; insert value of TOC base (.TOC.). */
950
951 /* R_PPC64_TOC 51 doubleword64 .TOC. */
952 HOWTO (R_PPC64_TOC, /* type */
953 0, /* rightshift */
954 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
955 64, /* bitsize */
b34976b6 956 FALSE, /* pc_relative */
5bd4f169
AM		 957 0, /* bitpos */
958 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 959 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 960 "R_PPC64_TOC", /* name */
b34976b6 961 FALSE, /* partial_inplace */
5bd4f169 962 0, /* src_mask */
f5e87a1d 963 ONES (64), /* dst_mask */
b34976b6 964 FALSE), /* pcrel_offset */
5bd4f169
AM		 965
966 /* Like R_PPC64_GOT16, but also informs the link editor that the
967 value to relocate may (!) refer to a PLT entry which the link
968 editor (a) may replace with the symbol value. If the link editor
969 is unable to fully resolve the symbol, it may (b) create a PLT
970 entry and store the address to the new PLT entry in the GOT.
971 This permits lazy resolution of function symbols at run time.
972 The link editor may also skip all of this and just (c) emit a
973 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
974 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
975 HOWTO (R_PPC64_PLTGOT16, /* type */
976 0, /* rightshift */
977 1, /* size (0 = byte, 1 = short, 2 = long) */
978 16, /* bitsize */
b34976b6 979 FALSE, /* pc_relative */
5bd4f169
AM		 980 0, /* bitpos */
981 complain_overflow_signed, /* complain_on_overflow */
805fc799 982 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 983 "R_PPC64_PLTGOT16", /* name */
984 FALSE, /* partial_inplace */
985 0, /* src_mask */
986 0xffff, /* dst_mask */
987 FALSE), /* pcrel_offset */
988
989 /* Like R_PPC64_PLTGOT16, but without overflow. */
990 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
991 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
992 0, /* rightshift */
993 1, /* size (0 = byte, 1 = short, 2 = long) */
994 16, /* bitsize */
995 FALSE, /* pc_relative */
996 0, /* bitpos */
997 complain_overflow_dont, /* complain_on_overflow */
998 ppc64_elf_unhandled_reloc, /* special_function */
999 "R_PPC64_PLTGOT16_LO", /* name */
1000 FALSE, /* partial_inplace */
1001 0, /* src_mask */
1002 0xffff, /* dst_mask */
1003 FALSE), /* pcrel_offset */
1004
1005 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1006 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1007 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1008 16, /* rightshift */
1009 1, /* size (0 = byte, 1 = short, 2 = long) */
1010 16, /* bitsize */
1011 FALSE, /* pc_relative */
1012 0, /* bitpos */
1013 complain_overflow_dont, /* complain_on_overflow */
1014 ppc64_elf_unhandled_reloc, /* special_function */
1015 "R_PPC64_PLTGOT16_HI", /* name */
1016 FALSE, /* partial_inplace */
1017 0, /* src_mask */
1018 0xffff, /* dst_mask */
1019 FALSE), /* pcrel_offset */
1020
1021 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1022 1 if the contents of the low 16 bits, treated as a signed number,
1023 is negative. */
1024 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1025 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1026 16, /* rightshift */
1027 1, /* size (0 = byte, 1 = short, 2 = long) */
1028 16, /* bitsize */
1029 FALSE, /* pc_relative */
1030 0, /* bitpos */
1031 complain_overflow_dont,/* complain_on_overflow */
1032 ppc64_elf_unhandled_reloc, /* special_function */
1033 "R_PPC64_PLTGOT16_HA", /* name */
1034 FALSE, /* partial_inplace */
1035 0, /* src_mask */
1036 0xffff, /* dst_mask */
1037 FALSE), /* pcrel_offset */
1038
1039 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1040 HOWTO (R_PPC64_ADDR16_DS, /* type */
1041 0, /* rightshift */
1042 1, /* size (0 = byte, 1 = short, 2 = long) */
1043 16, /* bitsize */
1044 FALSE, /* pc_relative */
1045 0, /* bitpos */
1046 complain_overflow_bitfield, /* complain_on_overflow */
1047 bfd_elf_generic_reloc, /* special_function */
1048 "R_PPC64_ADDR16_DS", /* name */
1049 FALSE, /* partial_inplace */
1050 0, /* src_mask */
1051 0xfffc, /* dst_mask */
1052 FALSE), /* pcrel_offset */
1053
1054 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1055 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1056 0, /* rightshift */
1057 1, /* size (0 = byte, 1 = short, 2 = long) */
1058 16, /* bitsize */
1059 FALSE, /* pc_relative */
1060 0, /* bitpos */
1061 complain_overflow_dont,/* complain_on_overflow */
1062 bfd_elf_generic_reloc, /* special_function */
1063 "R_PPC64_ADDR16_LO_DS",/* name */
1064 FALSE, /* partial_inplace */
1065 0, /* src_mask */
1066 0xfffc, /* dst_mask */
1067 FALSE), /* pcrel_offset */
1068
1069 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1070 HOWTO (R_PPC64_GOT16_DS, /* type */
1071 0, /* rightshift */
1072 1, /* size (0 = byte, 1 = short, 2 = long) */
1073 16, /* bitsize */
1074 FALSE, /* pc_relative */
1075 0, /* bitpos */
1076 complain_overflow_signed, /* complain_on_overflow */
1077 ppc64_elf_unhandled_reloc, /* special_function */
1078 "R_PPC64_GOT16_DS", /* name */
1079 FALSE, /* partial_inplace */
1080 0, /* src_mask */
1081 0xfffc, /* dst_mask */
1082 FALSE), /* pcrel_offset */
1083
1084 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1085 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1086 0, /* rightshift */
1087 1, /* size (0 = byte, 1 = short, 2 = long) */
1088 16, /* bitsize */
1089 FALSE, /* pc_relative */
1090 0, /* bitpos */
1091 complain_overflow_dont, /* complain_on_overflow */
1092 ppc64_elf_unhandled_reloc, /* special_function */
1093 "R_PPC64_GOT16_LO_DS", /* name */
1094 FALSE, /* partial_inplace */
1095 0, /* src_mask */
1096 0xfffc, /* dst_mask */
1097 FALSE), /* pcrel_offset */
1098
1099 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1100 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1101 0, /* rightshift */
1102 1, /* size (0 = byte, 1 = short, 2 = long) */
1103 16, /* bitsize */
1104 FALSE, /* pc_relative */
1105 0, /* bitpos */
1106 complain_overflow_dont, /* complain_on_overflow */
1107 ppc64_elf_unhandled_reloc, /* special_function */
1108 "R_PPC64_PLT16_LO_DS", /* name */
1109 FALSE, /* partial_inplace */
1110 0, /* src_mask */
1111 0xfffc, /* dst_mask */
1112 FALSE), /* pcrel_offset */
1113
1114 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1115 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1116 0, /* rightshift */
1117 1, /* size (0 = byte, 1 = short, 2 = long) */
1118 16, /* bitsize */
1119 FALSE, /* pc_relative */
1120 0, /* bitpos */
1121 complain_overflow_bitfield, /* complain_on_overflow */
1122 ppc64_elf_sectoff_reloc, /* special_function */
1123 "R_PPC64_SECTOFF_DS", /* name */
1124 FALSE, /* partial_inplace */
1125 0, /* src_mask */
1126 0xfffc, /* dst_mask */
1127 FALSE), /* pcrel_offset */
1128
1129 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1130 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1131 0, /* rightshift */
1132 1, /* size (0 = byte, 1 = short, 2 = long) */
1133 16, /* bitsize */
1134 FALSE, /* pc_relative */
1135 0, /* bitpos */
1136 complain_overflow_dont, /* complain_on_overflow */
1137 ppc64_elf_sectoff_reloc, /* special_function */
1138 "R_PPC64_SECTOFF_LO_DS",/* name */
1139 FALSE, /* partial_inplace */
1140 0, /* src_mask */
1141 0xfffc, /* dst_mask */
1142 FALSE), /* pcrel_offset */
1143
1144 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1145 HOWTO (R_PPC64_TOC16_DS, /* type */
1146 0, /* rightshift */
1147 1, /* size (0 = byte, 1 = short, 2 = long) */
1148 16, /* bitsize */
1149 FALSE, /* pc_relative */
1150 0, /* bitpos */
1151 complain_overflow_signed, /* complain_on_overflow */
1152 ppc64_elf_toc_reloc, /* special_function */
1153 "R_PPC64_TOC16_DS", /* name */
1154 FALSE, /* partial_inplace */
1155 0, /* src_mask */
1156 0xfffc, /* dst_mask */
1157 FALSE), /* pcrel_offset */
1158
1159 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1160 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1161 0, /* rightshift */
1162 1, /* size (0 = byte, 1 = short, 2 = long) */
1163 16, /* bitsize */
1164 FALSE, /* pc_relative */
1165 0, /* bitpos */
1166 complain_overflow_dont, /* complain_on_overflow */
1167 ppc64_elf_toc_reloc, /* special_function */
1168 "R_PPC64_TOC16_LO_DS", /* name */
1169 FALSE, /* partial_inplace */
1170 0, /* src_mask */
1171 0xfffc, /* dst_mask */
1172 FALSE), /* pcrel_offset */
1173
1174 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1175 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1176 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1177 0, /* rightshift */
1178 1, /* size (0 = byte, 1 = short, 2 = long) */
1179 16, /* bitsize */
1180 FALSE, /* pc_relative */
1181 0, /* bitpos */
1182 complain_overflow_signed, /* complain_on_overflow */
1183 ppc64_elf_unhandled_reloc, /* special_function */
1184 "R_PPC64_PLTGOT16_DS", /* name */
1185 FALSE, /* partial_inplace */
1186 0, /* src_mask */
1187 0xfffc, /* dst_mask */
1188 FALSE), /* pcrel_offset */
1189
1190 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1191 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1192 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1193 0, /* rightshift */
1194 1, /* size (0 = byte, 1 = short, 2 = long) */
1195 16, /* bitsize */
1196 FALSE, /* pc_relative */
1197 0, /* bitpos */
1198 complain_overflow_dont, /* complain_on_overflow */
1199 ppc64_elf_unhandled_reloc, /* special_function */
1200 "R_PPC64_PLTGOT16_LO_DS",/* name */
1201 FALSE, /* partial_inplace */
1202 0, /* src_mask */
1203 0xfffc, /* dst_mask */
1204 FALSE), /* pcrel_offset */
1205
1206 /* Marker reloc for TLS. */
1207 HOWTO (R_PPC64_TLS,
1208 0, /* rightshift */
1209 2, /* size (0 = byte, 1 = short, 2 = long) */
1210 32, /* bitsize */
1211 FALSE, /* pc_relative */
1212 0, /* bitpos */
1213 complain_overflow_dont, /* complain_on_overflow */
1214 bfd_elf_generic_reloc, /* special_function */
1215 "R_PPC64_TLS", /* name */
1216 FALSE, /* partial_inplace */
1217 0, /* src_mask */
1218 0, /* dst_mask */
1219 FALSE), /* pcrel_offset */
1220
1221 /* Computes the load module index of the load module that contains the
1222 definition of its TLS sym. */
1223 HOWTO (R_PPC64_DTPMOD64,
1224 0, /* rightshift */
1225 4, /* size (0 = byte, 1 = short, 2 = long) */
1226 64, /* bitsize */
1227 FALSE, /* pc_relative */
1228 0, /* bitpos */
1229 complain_overflow_dont, /* complain_on_overflow */
1230 ppc64_elf_unhandled_reloc, /* special_function */
1231 "R_PPC64_DTPMOD64", /* name */
1232 FALSE, /* partial_inplace */
1233 0, /* src_mask */
1234 ONES (64), /* dst_mask */
1235 FALSE), /* pcrel_offset */
1236
1237 /* Computes a dtv-relative displacement, the difference between the value
1238 of sym+add and the base address of the thread-local storage block that
1239 contains the definition of sym, minus 0x8000. */
1240 HOWTO (R_PPC64_DTPREL64,
1241 0, /* rightshift */
1242 4, /* size (0 = byte, 1 = short, 2 = long) */
1243 64, /* bitsize */
1244 FALSE, /* pc_relative */
1245 0, /* bitpos */
1246 complain_overflow_dont, /* complain_on_overflow */
1247 ppc64_elf_unhandled_reloc, /* special_function */
1248 "R_PPC64_DTPREL64", /* name */
1249 FALSE, /* partial_inplace */
1250 0, /* src_mask */
1251 ONES (64), /* dst_mask */
1252 FALSE), /* pcrel_offset */
1253
1254 /* A 16 bit dtprel reloc. */
1255 HOWTO (R_PPC64_DTPREL16,
1256 0, /* rightshift */
1257 1, /* size (0 = byte, 1 = short, 2 = long) */
1258 16, /* bitsize */
1259 FALSE, /* pc_relative */
1260 0, /* bitpos */
1261 complain_overflow_signed, /* complain_on_overflow */
1262 ppc64_elf_unhandled_reloc, /* special_function */
1263 "R_PPC64_DTPREL16", /* name */
1264 FALSE, /* partial_inplace */
1265 0, /* src_mask */
1266 0xffff, /* dst_mask */
1267 FALSE), /* pcrel_offset */
1268
1269 /* Like DTPREL16, but no overflow. */
1270 HOWTO (R_PPC64_DTPREL16_LO,
1271 0, /* rightshift */
1272 1, /* size (0 = byte, 1 = short, 2 = long) */
1273 16, /* bitsize */
1274 FALSE, /* pc_relative */
1275 0, /* bitpos */
1276 complain_overflow_dont, /* complain_on_overflow */
1277 ppc64_elf_unhandled_reloc, /* special_function */
1278 "R_PPC64_DTPREL16_LO", /* name */
1279 FALSE, /* partial_inplace */
1280 0, /* src_mask */
1281 0xffff, /* dst_mask */
1282 FALSE), /* pcrel_offset */
1283
1284 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1285 HOWTO (R_PPC64_DTPREL16_HI,
1286 16, /* rightshift */
1287 1, /* size (0 = byte, 1 = short, 2 = long) */
1288 16, /* bitsize */
1289 FALSE, /* pc_relative */
1290 0, /* bitpos */
1291 complain_overflow_dont, /* complain_on_overflow */
1292 ppc64_elf_unhandled_reloc, /* special_function */
1293 "R_PPC64_DTPREL16_HI", /* name */
1294 FALSE, /* partial_inplace */
1295 0, /* src_mask */
1296 0xffff, /* dst_mask */
1297 FALSE), /* pcrel_offset */
1298
1299 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1300 HOWTO (R_PPC64_DTPREL16_HA,
1301 16, /* rightshift */
1302 1, /* size (0 = byte, 1 = short, 2 = long) */
1303 16, /* bitsize */
1304 FALSE, /* pc_relative */
1305 0, /* bitpos */
1306 complain_overflow_dont, /* complain_on_overflow */
1307 ppc64_elf_unhandled_reloc, /* special_function */
1308 "R_PPC64_DTPREL16_HA", /* name */
1309 FALSE, /* partial_inplace */
1310 0, /* src_mask */
1311 0xffff, /* dst_mask */
1312 FALSE), /* pcrel_offset */
1313
1314 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1315 HOWTO (R_PPC64_DTPREL16_HIGHER,
1316 32, /* rightshift */
1317 1, /* size (0 = byte, 1 = short, 2 = long) */
1318 16, /* bitsize */
1319 FALSE, /* pc_relative */
1320 0, /* bitpos */
1321 complain_overflow_dont, /* complain_on_overflow */
1322 ppc64_elf_unhandled_reloc, /* special_function */
1323 "R_PPC64_DTPREL16_HIGHER", /* name */
1324 FALSE, /* partial_inplace */
1325 0, /* src_mask */
1326 0xffff, /* dst_mask */
1327 FALSE), /* pcrel_offset */
1328
1329 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1330 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1331 32, /* rightshift */
1332 1, /* size (0 = byte, 1 = short, 2 = long) */
1333 16, /* bitsize */
1334 FALSE, /* pc_relative */
1335 0, /* bitpos */
1336 complain_overflow_dont, /* complain_on_overflow */
1337 ppc64_elf_unhandled_reloc, /* special_function */
1338 "R_PPC64_DTPREL16_HIGHERA", /* name */
1339 FALSE, /* partial_inplace */
1340 0, /* src_mask */
1341 0xffff, /* dst_mask */
1342 FALSE), /* pcrel_offset */
1343
1344 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1345 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1346 48, /* rightshift */
1347 1, /* size (0 = byte, 1 = short, 2 = long) */
1348 16, /* bitsize */
1349 FALSE, /* pc_relative */
1350 0, /* bitpos */
1351 complain_overflow_dont, /* complain_on_overflow */
1352 ppc64_elf_unhandled_reloc, /* special_function */
1353 "R_PPC64_DTPREL16_HIGHEST", /* name */
1354 FALSE, /* partial_inplace */
1355 0, /* src_mask */
1356 0xffff, /* dst_mask */
1357 FALSE), /* pcrel_offset */
1358
1359 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1360 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1361 48, /* rightshift */
1362 1, /* size (0 = byte, 1 = short, 2 = long) */
1363 16, /* bitsize */
1364 FALSE, /* pc_relative */
1365 0, /* bitpos */
1366 complain_overflow_dont, /* complain_on_overflow */
1367 ppc64_elf_unhandled_reloc, /* special_function */
1368 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1369 FALSE, /* partial_inplace */
1370 0, /* src_mask */
1371 0xffff, /* dst_mask */
1372 FALSE), /* pcrel_offset */
1373
1374 /* Like DTPREL16, but for insns with a DS field. */
1375 HOWTO (R_PPC64_DTPREL16_DS,
1376 0, /* rightshift */
1377 1, /* size (0 = byte, 1 = short, 2 = long) */
1378 16, /* bitsize */
1379 FALSE, /* pc_relative */
1380 0, /* bitpos */
1381 complain_overflow_signed, /* complain_on_overflow */
1382 ppc64_elf_unhandled_reloc, /* special_function */
1383 "R_PPC64_DTPREL16_DS", /* name */
1384 FALSE, /* partial_inplace */
1385 0, /* src_mask */
1386 0xfffc, /* dst_mask */
1387 FALSE), /* pcrel_offset */
1388
1389 /* Like DTPREL16_DS, but no overflow. */
1390 HOWTO (R_PPC64_DTPREL16_LO_DS,
1391 0, /* rightshift */
1392 1, /* size (0 = byte, 1 = short, 2 = long) */
1393 16, /* bitsize */
1394 FALSE, /* pc_relative */
1395 0, /* bitpos */
1396 complain_overflow_dont, /* complain_on_overflow */
1397 ppc64_elf_unhandled_reloc, /* special_function */
1398 "R_PPC64_DTPREL16_LO_DS", /* name */
1399 FALSE, /* partial_inplace */
1400 0, /* src_mask */
1401 0xfffc, /* dst_mask */
1402 FALSE), /* pcrel_offset */
1403
1404 /* Computes a tp-relative displacement, the difference between the value of
1405 sym+add and the value of the thread pointer (r13). */
1406 HOWTO (R_PPC64_TPREL64,
1407 0, /* rightshift */
1408 4, /* size (0 = byte, 1 = short, 2 = long) */
1409 64, /* bitsize */
1410 FALSE, /* pc_relative */
1411 0, /* bitpos */
1412 complain_overflow_dont, /* complain_on_overflow */
1413 ppc64_elf_unhandled_reloc, /* special_function */
1414 "R_PPC64_TPREL64", /* name */
1415 FALSE, /* partial_inplace */
1416 0, /* src_mask */
1417 ONES (64), /* dst_mask */
1418 FALSE), /* pcrel_offset */
1419
1420 /* A 16 bit tprel reloc. */
1421 HOWTO (R_PPC64_TPREL16,
1422 0, /* rightshift */
1423 1, /* size (0 = byte, 1 = short, 2 = long) */
1424 16, /* bitsize */
1425 FALSE, /* pc_relative */
1426 0, /* bitpos */
1427 complain_overflow_signed, /* complain_on_overflow */
1428 ppc64_elf_unhandled_reloc, /* special_function */
1429 "R_PPC64_TPREL16", /* name */
1430 FALSE, /* partial_inplace */
1431 0, /* src_mask */
1432 0xffff, /* dst_mask */
1433 FALSE), /* pcrel_offset */
1434
1435 /* Like TPREL16, but no overflow. */
1436 HOWTO (R_PPC64_TPREL16_LO,
1437 0, /* rightshift */
1438 1, /* size (0 = byte, 1 = short, 2 = long) */
1439 16, /* bitsize */
1440 FALSE, /* pc_relative */
1441 0, /* bitpos */
1442 complain_overflow_dont, /* complain_on_overflow */
1443 ppc64_elf_unhandled_reloc, /* special_function */
1444 "R_PPC64_TPREL16_LO", /* name */
1445 FALSE, /* partial_inplace */
1446 0, /* src_mask */
1447 0xffff, /* dst_mask */
1448 FALSE), /* pcrel_offset */
1449
1450 /* Like TPREL16_LO, but next higher group of 16 bits. */
1451 HOWTO (R_PPC64_TPREL16_HI,
1452 16, /* rightshift */
1453 1, /* size (0 = byte, 1 = short, 2 = long) */
1454 16, /* bitsize */
1455 FALSE, /* pc_relative */
1456 0, /* bitpos */
1457 complain_overflow_dont, /* complain_on_overflow */
1458 ppc64_elf_unhandled_reloc, /* special_function */
1459 "R_PPC64_TPREL16_HI", /* name */
1460 FALSE, /* partial_inplace */
1461 0, /* src_mask */
1462 0xffff, /* dst_mask */
1463 FALSE), /* pcrel_offset */
1464
1465 /* Like TPREL16_HI, but adjust for low 16 bits. */
1466 HOWTO (R_PPC64_TPREL16_HA,
1467 16, /* rightshift */
1468 1, /* size (0 = byte, 1 = short, 2 = long) */
1469 16, /* bitsize */
1470 FALSE, /* pc_relative */
1471 0, /* bitpos */
1472 complain_overflow_dont, /* complain_on_overflow */
1473 ppc64_elf_unhandled_reloc, /* special_function */
1474 "R_PPC64_TPREL16_HA", /* name */
1475 FALSE, /* partial_inplace */
1476 0, /* src_mask */
1477 0xffff, /* dst_mask */
1478 FALSE), /* pcrel_offset */
1479
1480 /* Like TPREL16_HI, but next higher group of 16 bits. */
1481 HOWTO (R_PPC64_TPREL16_HIGHER,
1482 32, /* rightshift */
1483 1, /* size (0 = byte, 1 = short, 2 = long) */
1484 16, /* bitsize */
1485 FALSE, /* pc_relative */
1486 0, /* bitpos */
1487 complain_overflow_dont, /* complain_on_overflow */
1488 ppc64_elf_unhandled_reloc, /* special_function */
1489 "R_PPC64_TPREL16_HIGHER", /* name */
1490 FALSE, /* partial_inplace */
1491 0, /* src_mask */
1492 0xffff, /* dst_mask */
1493 FALSE), /* pcrel_offset */
1494
1495 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1496 HOWTO (R_PPC64_TPREL16_HIGHERA,
1497 32, /* rightshift */
1498 1, /* size (0 = byte, 1 = short, 2 = long) */
1499 16, /* bitsize */
1500 FALSE, /* pc_relative */
1501 0, /* bitpos */
1502 complain_overflow_dont, /* complain_on_overflow */
1503 ppc64_elf_unhandled_reloc, /* special_function */
1504 "R_PPC64_TPREL16_HIGHERA", /* name */
1505 FALSE, /* partial_inplace */
1506 0, /* src_mask */
1507 0xffff, /* dst_mask */
1508 FALSE), /* pcrel_offset */
1509
1510 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1511 HOWTO (R_PPC64_TPREL16_HIGHEST,
1512 48, /* rightshift */
1513 1, /* size (0 = byte, 1 = short, 2 = long) */
1514 16, /* bitsize */
1515 FALSE, /* pc_relative */
1516 0, /* bitpos */
1517 complain_overflow_dont, /* complain_on_overflow */
1518 ppc64_elf_unhandled_reloc, /* special_function */
1519 "R_PPC64_TPREL16_HIGHEST", /* name */
1520 FALSE, /* partial_inplace */
1521 0, /* src_mask */
1522 0xffff, /* dst_mask */
1523 FALSE), /* pcrel_offset */
1524
1525 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1526 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1527 48, /* rightshift */
1528 1, /* size (0 = byte, 1 = short, 2 = long) */
1529 16, /* bitsize */
1530 FALSE, /* pc_relative */
1531 0, /* bitpos */
1532 complain_overflow_dont, /* complain_on_overflow */
1533 ppc64_elf_unhandled_reloc, /* special_function */
1534 "R_PPC64_TPREL16_HIGHESTA", /* name */
1535 FALSE, /* partial_inplace */
1536 0, /* src_mask */
1537 0xffff, /* dst_mask */
1538 FALSE), /* pcrel_offset */
1539
1540 /* Like TPREL16, but for insns with a DS field. */
1541 HOWTO (R_PPC64_TPREL16_DS,
1542 0, /* rightshift */
1543 1, /* size (0 = byte, 1 = short, 2 = long) */
1544 16, /* bitsize */
1545 FALSE, /* pc_relative */
1546 0, /* bitpos */
1547 complain_overflow_signed, /* complain_on_overflow */
1548 ppc64_elf_unhandled_reloc, /* special_function */
1549 "R_PPC64_TPREL16_DS", /* name */
1550 FALSE, /* partial_inplace */
1551 0, /* src_mask */
1552 0xfffc, /* dst_mask */
1553 FALSE), /* pcrel_offset */
1554
1555 /* Like TPREL16_DS, but no overflow. */
1556 HOWTO (R_PPC64_TPREL16_LO_DS,
1557 0, /* rightshift */
1558 1, /* size (0 = byte, 1 = short, 2 = long) */
1559 16, /* bitsize */
1560 FALSE, /* pc_relative */
1561 0, /* bitpos */
1562 complain_overflow_dont, /* complain_on_overflow */
1563 ppc64_elf_unhandled_reloc, /* special_function */
1564 "R_PPC64_TPREL16_LO_DS", /* name */
1565 FALSE, /* partial_inplace */
1566 0, /* src_mask */
1567 0xfffc, /* dst_mask */
1568 FALSE), /* pcrel_offset */
1569
1570 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1571 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1572 to the first entry relative to the TOC base (r2). */
1573 HOWTO (R_PPC64_GOT_TLSGD16,
1574 0, /* rightshift */
1575 1, /* size (0 = byte, 1 = short, 2 = long) */
1576 16, /* bitsize */
1577 FALSE, /* pc_relative */
1578 0, /* bitpos */
1579 complain_overflow_signed, /* complain_on_overflow */
1580 ppc64_elf_unhandled_reloc, /* special_function */
1581 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1582 FALSE, /* partial_inplace */
5bd4f169
AM		 1583 0, /* src_mask */
1584 0xffff, /* dst_mask */
b34976b6 1585 FALSE), /* pcrel_offset */
5bd4f169 1586
411e1bfb
AM		 1587 /* Like GOT_TLSGD16, but no overflow. */
1588 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1589 0, /* rightshift */
1590 1, /* size (0 = byte, 1 = short, 2 = long) */
1591 16, /* bitsize */
b34976b6 1592 FALSE, /* pc_relative */
5bd4f169
AM		 1593 0, /* bitpos */
1594 complain_overflow_dont, /* complain_on_overflow */
805fc799 1595 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1596 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1597 FALSE, /* partial_inplace */
5bd4f169
AM		 1598 0, /* src_mask */
1599 0xffff, /* dst_mask */
b34976b6 1600 FALSE), /* pcrel_offset */
5bd4f169 1601
411e1bfb
AM		 1602 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1603 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1604 16, /* rightshift */
1605 1, /* size (0 = byte, 1 = short, 2 = long) */
1606 16, /* bitsize */
b34976b6 1607 FALSE, /* pc_relative */
5bd4f169
AM		 1608 0, /* bitpos */
1609 complain_overflow_dont, /* complain_on_overflow */
805fc799 1610 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1611 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1612 FALSE, /* partial_inplace */
5bd4f169
AM		 1613 0, /* src_mask */
1614 0xffff, /* dst_mask */
b34976b6 1615 FALSE), /* pcrel_offset */
5bd4f169 1616
411e1bfb
AM		 1617 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1618 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1619 16, /* rightshift */
1620 1, /* size (0 = byte, 1 = short, 2 = long) */
1621 16, /* bitsize */
b34976b6 1622 FALSE, /* pc_relative */
5bd4f169 1623 0, /* bitpos */
411e1bfb 1624 complain_overflow_dont, /* complain_on_overflow */
805fc799 1625 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1626 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1627 FALSE, /* partial_inplace */
5bd4f169
AM		 1628 0, /* src_mask */
1629 0xffff, /* dst_mask */
b34976b6 1630 FALSE), /* pcrel_offset */
5bd4f169 1631
411e1bfb
AM		 1632 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1633 with values (sym+add)@dtpmod and zero, and computes the offset to the
1634 first entry relative to the TOC base (r2). */
1635 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1636 0, /* rightshift */
1637 1, /* size (0 = byte, 1 = short, 2 = long) */
1638 16, /* bitsize */
b34976b6 1639 FALSE, /* pc_relative */
5bd4f169 1640 0, /* bitpos */
411e1bfb
AM		 1641 complain_overflow_signed, /* complain_on_overflow */
1642 ppc64_elf_unhandled_reloc, /* special_function */
1643 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1644 FALSE, /* partial_inplace */
d006db6c 1645 0, /* src_mask */
411e1bfb 1646 0xffff, /* dst_mask */
b34976b6 1647 FALSE), /* pcrel_offset */
5bd4f169 1648
411e1bfb
AM		 1649 /* Like GOT_TLSLD16, but no overflow. */
1650 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1651 0, /* rightshift */
1652 1, /* size (0 = byte, 1 = short, 2 = long) */
1653 16, /* bitsize */
b34976b6 1654 FALSE, /* pc_relative */
5bd4f169 1655 0, /* bitpos */
411e1bfb
AM		 1656 complain_overflow_dont, /* complain_on_overflow */
1657 ppc64_elf_unhandled_reloc, /* special_function */
1658 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1659 FALSE, /* partial_inplace */
d006db6c 1660 0, /* src_mask */
411e1bfb 1661 0xffff, /* dst_mask */
b34976b6 1662 FALSE), /* pcrel_offset */
5bd4f169 1663
411e1bfb
AM		 1664 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1665 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1666 16, /* rightshift */
5bd4f169
AM		 1667 1, /* size (0 = byte, 1 = short, 2 = long) */
1668 16, /* bitsize */
b34976b6 1669 FALSE, /* pc_relative */
5bd4f169 1670 0, /* bitpos */
411e1bfb 1671 complain_overflow_dont, /* complain_on_overflow */
805fc799 1672 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1673 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1674 FALSE, /* partial_inplace */
d006db6c 1675 0, /* src_mask */
411e1bfb 1676 0xffff, /* dst_mask */
b34976b6 1677 FALSE), /* pcrel_offset */
5bd4f169 1678
411e1bfb
AM		 1679 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1680 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1681 16, /* rightshift */
5bd4f169
AM		 1682 1, /* size (0 = byte, 1 = short, 2 = long) */
1683 16, /* bitsize */
b34976b6 1684 FALSE, /* pc_relative */
5bd4f169
AM		 1685 0, /* bitpos */
1686 complain_overflow_dont, /* complain_on_overflow */
805fc799 1687 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1688 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1689 FALSE, /* partial_inplace */
d006db6c 1690 0, /* src_mask */
411e1bfb 1691 0xffff, /* dst_mask */
b34976b6 1692 FALSE), /* pcrel_offset */
5bd4f169 1693
411e1bfb
AM		 1694 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1695 the offset to the entry relative to the TOC base (r2). */
1696 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1697 0, /* rightshift */
1698 1, /* size (0 = byte, 1 = short, 2 = long) */
1699 16, /* bitsize */
b34976b6 1700 FALSE, /* pc_relative */
5bd4f169 1701 0, /* bitpos */
411e1bfb 1702 complain_overflow_signed, /* complain_on_overflow */
805fc799 1703 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1704 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1705 FALSE, /* partial_inplace */
d006db6c 1706 0, /* src_mask */
5bd4f169 1707 0xfffc, /* dst_mask */
b34976b6 1708 FALSE), /* pcrel_offset */
5bd4f169 1709
411e1bfb
AM		 1710 /* Like GOT_DTPREL16_DS, but no overflow. */
1711 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1712 0, /* rightshift */
c061c2d8
AM		 1713 1, /* size (0 = byte, 1 = short, 2 = long) */
1714 16, /* bitsize */
b34976b6 1715 FALSE, /* pc_relative */
5bd4f169 1716 0, /* bitpos */
411e1bfb
AM		 1717 complain_overflow_dont, /* complain_on_overflow */
1718 ppc64_elf_unhandled_reloc, /* special_function */
1719 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1720 FALSE, /* partial_inplace */
d006db6c 1721 0, /* src_mask */
c061c2d8 1722 0xfffc, /* dst_mask */
b34976b6 1723 FALSE), /* pcrel_offset */
5bd4f169 1724
411e1bfb
AM		 1725 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1726 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1727 16, /* rightshift */
5bd4f169
AM		 1728 1, /* size (0 = byte, 1 = short, 2 = long) */
1729 16, /* bitsize */
b34976b6 1730 FALSE, /* pc_relative */
5bd4f169
AM		 1731 0, /* bitpos */
1732 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1733 ppc64_elf_unhandled_reloc, /* special_function */
1734 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1735 FALSE, /* partial_inplace */
d006db6c 1736 0, /* src_mask */
411e1bfb 1737 0xffff, /* dst_mask */
b34976b6 1738 FALSE), /* pcrel_offset */
5bd4f169 1739
411e1bfb
AM		 1740 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1741 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1742 16, /* rightshift */
1743 1, /* size (0 = byte, 1 = short, 2 = long) */
1744 16, /* bitsize */
1745 FALSE, /* pc_relative */
1746 0, /* bitpos */
1747 complain_overflow_dont, /* complain_on_overflow */
1748 ppc64_elf_unhandled_reloc, /* special_function */
1749 "R_PPC64_GOT_DTPREL16_HA", /* name */
1750 FALSE, /* partial_inplace */
1751 0, /* src_mask */
1752 0xffff, /* dst_mask */
1753 FALSE), /* pcrel_offset */
1754
1755 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1756 offset to the entry relative to the TOC base (r2). */
1757 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1758 0, /* rightshift */
1759 1, /* size (0 = byte, 1 = short, 2 = long) */
1760 16, /* bitsize */
b34976b6 1761 FALSE, /* pc_relative */
5bd4f169
AM		 1762 0, /* bitpos */
1763 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1764 ppc64_elf_unhandled_reloc, /* special_function */
1765 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1766 FALSE, /* partial_inplace */
d006db6c 1767 0, /* src_mask */
ad8e1ba5 1768 0xfffc, /* dst_mask */
b34976b6 1769 FALSE), /* pcrel_offset */
5bd4f169 1770
411e1bfb
AM		 1771 /* Like GOT_TPREL16_DS, but no overflow. */
1772 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1773 0, /* rightshift */
1774 1, /* size (0 = byte, 1 = short, 2 = long) */
1775 16, /* bitsize */
b34976b6 1776 FALSE, /* pc_relative */
5bd4f169
AM		 1777 0, /* bitpos */
1778 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1779 ppc64_elf_unhandled_reloc, /* special_function */
1780 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1781 FALSE, /* partial_inplace */
d006db6c 1782 0, /* src_mask */
ad8e1ba5 1783 0xfffc, /* dst_mask */
b34976b6 1784 FALSE), /* pcrel_offset */
5bd4f169 1785
411e1bfb
AM		 1786 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1787 HOWTO (R_PPC64_GOT_TPREL16_HI,
1788 16, /* rightshift */
5bd4f169
AM		 1789 1, /* size (0 = byte, 1 = short, 2 = long) */
1790 16, /* bitsize */
b34976b6 1791 FALSE, /* pc_relative */
5bd4f169 1792 0, /* bitpos */
411e1bfb 1793 complain_overflow_dont, /* complain_on_overflow */
805fc799 1794 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1795 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1796 FALSE, /* partial_inplace */
d006db6c 1797 0, /* src_mask */
411e1bfb 1798 0xffff, /* dst_mask */
b34976b6 1799 FALSE), /* pcrel_offset */
5bd4f169 1800
411e1bfb
AM		 1801 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1802 HOWTO (R_PPC64_GOT_TPREL16_HA,
1803 16, /* rightshift */
5bd4f169
AM		 1804 1, /* size (0 = byte, 1 = short, 2 = long) */
1805 16, /* bitsize */
b34976b6 1806 FALSE, /* pc_relative */
5bd4f169
AM		 1807 0, /* bitpos */
1808 complain_overflow_dont, /* complain_on_overflow */
805fc799 1809 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1810 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1811 FALSE, /* partial_inplace */
d006db6c 1812 0, /* src_mask */
411e1bfb 1813 0xffff, /* dst_mask */
b34976b6 1814 FALSE), /* pcrel_offset */
5bd4f169
AM		 1815
1816 /* GNU extension to record C++ vtable hierarchy. */
1817 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1818 0, /* rightshift */
1819 0, /* size (0 = byte, 1 = short, 2 = long) */
1820 0, /* bitsize */
b34976b6 1821 FALSE, /* pc_relative */
5bd4f169
AM		 1822 0, /* bitpos */
1823 complain_overflow_dont, /* complain_on_overflow */
1824 NULL, /* special_function */
1825 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1826 FALSE, /* partial_inplace */
5bd4f169
AM		 1827 0, /* src_mask */
1828 0, /* dst_mask */
b34976b6 1829 FALSE), /* pcrel_offset */
5bd4f169
AM		 1830
1831 /* GNU extension to record C++ vtable member usage. */
1832 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1833 0, /* rightshift */
1834 0, /* size (0 = byte, 1 = short, 2 = long) */
1835 0, /* bitsize */
b34976b6 1836 FALSE, /* pc_relative */
5bd4f169
AM		 1837 0, /* bitpos */
1838 complain_overflow_dont, /* complain_on_overflow */
1839 NULL, /* special_function */
1840 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1841 FALSE, /* partial_inplace */
5bd4f169
AM		 1842 0, /* src_mask */
1843 0, /* dst_mask */
b34976b6 1844 FALSE), /* pcrel_offset */
5bd4f169
AM		 1845};
1846
1847\f
1848/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1849 be done. */
1850
1851static void
4ce794b7 1852ppc_howto_init (void)
5bd4f169
AM		 1853{
1854 unsigned int i, type;
1855
1856 for (i = 0;
1857 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1858 i++)
1859 {
1860 type = ppc64_elf_howto_raw[i].type;
1861 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1862 / sizeof (ppc64_elf_howto_table[0])));
1863 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1864 }
1865}
1866
1867static reloc_howto_type *
4ce794b7
AM		 1868ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1869 bfd_reloc_code_real_type code)
5bd4f169 1870{
411e1bfb 1871 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 1872
1873 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1874 /* Initialize howto table if needed. */
1875 ppc_howto_init ();
1876
4ce794b7 1877 switch (code)
5bd4f169
AM		 1878 {
1879 default:
4ce794b7 1880 return NULL;
5bd4f169 1881
411e1bfb
AM		 1882 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1883 break;
1884 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1885 break;
1886 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1887 break;
1888 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1889 break;
1890 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1891 break;
1892 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1893 break;
1894 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1895 break;
411e1bfb 1896 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1897 break;
411e1bfb 1898 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1899 break;
411e1bfb 1900 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1901 break;
411e1bfb 1902 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1903 break;
411e1bfb 1904 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1905 break;
411e1bfb 1906 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1907 break;
411e1bfb 1908 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1909 break;
411e1bfb 1910 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1911 break;
411e1bfb 1912 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1913 break;
411e1bfb 1914 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1915 break;
411e1bfb 1916 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1917 break;
411e1bfb 1918 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1919 break;
411e1bfb 1920 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1921 break;
411e1bfb 1922 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1923 break;
411e1bfb 1924 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1925 break;
411e1bfb 1926 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1927 break;
411e1bfb 1928 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1929 break;
411e1bfb 1930 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1931 break;
411e1bfb 1932 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1933 break;
411e1bfb 1934 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1935 break;
411e1bfb 1936 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1937 break;
411e1bfb 1938 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1939 break;
411e1bfb 1940 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1941 break;
411e1bfb 1942 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1943 break;
411e1bfb 1944 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1945 break;
411e1bfb 1946 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1947 break;
411e1bfb 1948 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1949 break;
411e1bfb 1950 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1951 break;
411e1bfb 1952 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1953 break;
411e1bfb 1954 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1955 break;
411e1bfb 1956 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1957 break;
411e1bfb 1958 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1959 break;
411e1bfb 1960 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1961 break;
411e1bfb 1962 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1963 break;
411e1bfb 1964 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1965 break;
411e1bfb 1966 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1967 break;
411e1bfb 1968 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1969 break;
411e1bfb 1970 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1971 break;
411e1bfb 1972 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1973 break;
411e1bfb 1974 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1975 break;
411e1bfb 1976 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1977 break;
411e1bfb 1978 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1979 break;
411e1bfb 1980 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 1981 break;
411e1bfb 1982 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 1983 break;
411e1bfb 1984 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 1985 break;
411e1bfb 1986 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 1987 break;
411e1bfb 1988 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 1989 break;
411e1bfb 1990 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 1991 break;
411e1bfb 1992 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 1993 break;
411e1bfb 1994 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 1995 break;
411e1bfb 1996 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 1997 break;
411e1bfb 1998 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 1999 break;
411e1bfb 2000 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2001 break;
411e1bfb 2002 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2003 break;
411e1bfb 2004 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2005 break;
411e1bfb 2006 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2007 break;
411e1bfb 2008 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2009 break;
411e1bfb 2010 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2011 break;
411e1bfb 2012 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2013 break;
411e1bfb
AM		 2014 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2015 break;
2016 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2017 break;
2018 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2019 break;
2020 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2021 break;
2022 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2023 break;
2024 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2025 break;
2026 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2027 break;
2028 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2029 break;
2030 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2031 break;
2032 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2033 break;
2034 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2035 break;
2036 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2037 break;
2038 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2039 break;
2040 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2041 break;
2042 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2043 break;
2044 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2045 break;
2046 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2047 break;
2048 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2049 break;
2050 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2051 break;
2052 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2053 break;
2054 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2055 break;
2056 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2057 break;
2058 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2059 break;
2060 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2061 break;
2062 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2063 break;
2064 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2065 break;
2066 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2067 break;
2068 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2069 break;
2070 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2071 break;
2072 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2073 break;
2074 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2075 break;
2076 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2077 break;
2078 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2079 break;
2080 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2081 break;
2082 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2083 break;
2084 }
2085
4ce794b7 2086 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2087};
2088
2089/* Set the howto pointer for a PowerPC ELF reloc. */
2090
2091static void
4ce794b7
AM		 2092ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2093 Elf_Internal_Rela *dst)
5bd4f169 2094{
65f38f15
AM		 2095 unsigned int type;
2096
ef60b7ff 2097 /* Initialize howto table if needed. */
5bd4f169 2098 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2099 ppc_howto_init ();
2100
65f38f15
AM		 2101 type = ELF64_R_TYPE (dst->r_info);
2102 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2103 / sizeof (ppc64_elf_howto_table[0])));
2104 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2105}
2106
04c9666a 2107/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2108
2109static bfd_reloc_status_type
4ce794b7
AM		 2110ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2111 void *data, asection *input_section,
2112 bfd *output_bfd, char **error_message)
5bd4f169 2113{
805fc799
AM		 2114 /* If this is a relocatable link (output_bfd test tells us), just
2115 call the generic function. Any adjustment will be done at final
2116 link time. */
2117 if (output_bfd != NULL)
cedb70c5 2118 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2119 input_section, output_bfd, error_message);
2120
2121 /* Adjust the addend for sign extension of the low 16 bits.
2122 We won't actually be using the low 16 bits, so trashing them
2123 doesn't matter. */
2124 reloc_entry->addend += 0x8000;
2125 return bfd_reloc_continue;
2126}
5bd4f169 2127
805fc799 2128static bfd_reloc_status_type
4ce794b7
AM		 2129ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2130 void *data, asection *input_section,
2131 bfd *output_bfd, char **error_message)
805fc799
AM		 2132{
2133 long insn;
04c9666a 2134 enum elf_ppc64_reloc_type r_type;
805fc799
AM		 2135 bfd_size_type octets;
2136 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2137 bfd_boolean is_power4 = FALSE;
805fc799
AM		 2138
2139 /* If this is a relocatable link (output_bfd test tells us), just
2140 call the generic function. Any adjustment will be done at final
2141 link time. */
5bd4f169 2142 if (output_bfd != NULL)
cedb70c5 2143 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2144 input_section, output_bfd, error_message);
2145
2146 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2147 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2148 insn &= ~(0x01 << 21);
4ce794b7 2149 r_type = reloc_entry->howto->type;
805fc799
AM		 2150 if (r_type == R_PPC64_ADDR14_BRTAKEN
2151 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2152 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM		 2153
2154 if (is_power4)
5bd4f169 2155 {
805fc799
AM		 2156 /* Set 'a' bit. This is 0b00010 in BO field for branch
2157 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2158 for branch on CTR insns (BO == 1a00t or 1a01t). */
2159 if ((insn & (0x14 << 21)) == (0x04 << 21))
2160 insn |= 0x02 << 21;
2161 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2162 insn |= 0x08 << 21;
2163 else
2164 return bfd_reloc_continue;
5bd4f169 2165 }
805fc799
AM		 2166 else
2167 {
2168 bfd_vma target = 0;
2169 bfd_vma from;
5bd4f169 2170
805fc799
AM		 2171 if (!bfd_is_com_section (symbol->section))
2172 target = symbol->value;
2173 target += symbol->section->output_section->vma;
2174 target += symbol->section->output_offset;
2175 target += reloc_entry->addend;
5bd4f169 2176
805fc799
AM		 2177 from = (reloc_entry->address
2178 + input_section->output_offset
2179 + input_section->output_section->vma);
5bd4f169 2180
805fc799
AM		 2181 /* Invert 'y' bit if not the default. */
2182 if ((bfd_signed_vma) (target - from) < 0)
2183 insn ^= 0x01 << 21;
2184 }
4ce794b7 2185 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
805fc799
AM		 2186 return bfd_reloc_continue;
2187}
5bd4f169 2188
805fc799 2189static bfd_reloc_status_type
4ce794b7
AM		 2190ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2191 void *data, asection *input_section,
2192 bfd *output_bfd, char **error_message)
805fc799
AM		 2193{
2194 /* If this is a relocatable link (output_bfd test tells us), just
2195 call the generic function. Any adjustment will be done at final
2196 link time. */
2197 if (output_bfd != NULL)
cedb70c5 2198 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2199 input_section, output_bfd, error_message);
5bd4f169 2200
805fc799
AM		 2201 /* Subtract the symbol section base address. */
2202 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2203 return bfd_reloc_continue;
2204}
2205
805fc799 2206static bfd_reloc_status_type
4ce794b7
AM		 2207ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2208 void *data, asection *input_section,
2209 bfd *output_bfd, char **error_message)
805fc799
AM		 2210{
2211 /* If this is a relocatable link (output_bfd test tells us), just
2212 call the generic function. Any adjustment will be done at final
2213 link time. */
2214 if (output_bfd != NULL)
cedb70c5 2215 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2216 input_section, output_bfd, error_message);
2217
2218 /* Subtract the symbol section base address. */
2219 reloc_entry->addend -= symbol->section->output_section->vma;
2220
2221 /* Adjust the addend for sign extension of the low 16 bits. */
2222 reloc_entry->addend += 0x8000;
2223 return bfd_reloc_continue;
2224}
2225
2226static bfd_reloc_status_type
4ce794b7
AM		 2227ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2228 void *data, asection *input_section,
2229 bfd *output_bfd, char **error_message)
805fc799
AM		 2230{
2231 bfd_vma TOCstart;
2232
2233 /* If this is a relocatable link (output_bfd test tells us), just
2234 call the generic function. Any adjustment will be done at final
2235 link time. */
2236 if (output_bfd != NULL)
cedb70c5 2237 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2238 input_section, output_bfd, error_message);
2239
2240 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2241 if (TOCstart == 0)
2242 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2243
2244 /* Subtract the TOC base address. */
2245 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2246 return bfd_reloc_continue;
2247}
2248
2249static bfd_reloc_status_type
4ce794b7
AM		 2250ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2251 void *data, asection *input_section,
2252 bfd *output_bfd, char **error_message)
805fc799
AM		 2253{
2254 bfd_vma TOCstart;
2255
2256 /* If this is a relocatable link (output_bfd test tells us), just
2257 call the generic function. Any adjustment will be done at final
2258 link time. */
2259 if (output_bfd != NULL)
cedb70c5 2260 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2261 input_section, output_bfd, error_message);
2262
2263 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2264 if (TOCstart == 0)
2265 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2266
2267 /* Subtract the TOC base address. */
2268 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2269
2270 /* Adjust the addend for sign extension of the low 16 bits. */
2271 reloc_entry->addend += 0x8000;
2272 return bfd_reloc_continue;
2273}
2274
2275static bfd_reloc_status_type
4ce794b7
AM		 2276ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2277 void *data, asection *input_section,
2278 bfd *output_bfd, char **error_message)
805fc799
AM		 2279{
2280 bfd_vma TOCstart;
2281 bfd_size_type octets;
2282
2283 /* If this is a relocatable link (output_bfd test tells us), just
2284 call the generic function. Any adjustment will be done at final
2285 link time. */
2286 if (output_bfd != NULL)
cedb70c5 2287 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2288 input_section, output_bfd, error_message);
2289
2290 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2291 if (TOCstart == 0)
2292 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2293
2294 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2295 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2296 return bfd_reloc_ok;
2297}
2298
2299static bfd_reloc_status_type
4ce794b7
AM		 2300ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2301 void *data, asection *input_section,
2302 bfd *output_bfd, char **error_message)
805fc799
AM		 2303{
2304 /* If this is a relocatable link (output_bfd test tells us), just
2305 call the generic function. Any adjustment will be done at final
2306 link time. */
2307 if (output_bfd != NULL)
cedb70c5 2308 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2309 input_section, output_bfd, error_message);
2310
2311 if (error_message != NULL)
2312 {
2313 static char buf[60];
2314 sprintf (buf, "generic linker can't handle %s",
2315 reloc_entry->howto->name);
2316 *error_message = buf;
2317 }
2318 return bfd_reloc_dangerous;
2319}
2320
e717da7e
AM		 2321struct ppc64_elf_obj_tdata
2322{
2323 struct elf_obj_tdata elf;
2324
2325 /* Shortcuts to dynamic linker sections. */
2326 asection *got;
2327 asection *relgot;
2328
2329 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2330 sections means we potentially need one of these for each input bfd. */
2331 union {
2332 bfd_signed_vma refcount;
2333 bfd_vma offset;
2334 } tlsld_got;
2335};
2336
2337#define ppc64_elf_tdata(bfd) \
2338 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2339
2340#define ppc64_tlsld_got(bfd) \
2341 (&ppc64_elf_tdata (bfd)->tlsld_got)
2342
2343/* Override the generic function because we store some extras. */
2344
2345static bfd_boolean
2346ppc64_elf_mkobject (bfd *abfd)
2347{
2348 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2349 abfd->tdata.any = bfd_zalloc (abfd, amt);
2350 if (abfd->tdata.any == NULL)
2351 return FALSE;
2352 return TRUE;
2353}
2354
feee612b
AM		 2355/* Fix bad default arch selected for a 64 bit input bfd when the
2356 default is 32 bit. */
2357
b34976b6 2358static bfd_boolean
4ce794b7 2359ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2360{
2361 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2362 {
2363 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2364
2365 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2366 {
2367 /* Relies on arch after 32 bit default being 64 bit default. */
2368 abfd->arch_info = abfd->arch_info->next;
2369 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2370 }
2371 }
b34976b6 2372 return TRUE;
feee612b
AM		 2373}
2374
5bd4f169
AM		 2375/* Merge backend specific data from an object file to the output
2376 object file when linking. */
2f6d9989 2377
b34976b6 2378static bfd_boolean
4ce794b7 2379ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2380{
5bd4f169
AM		 2381 /* Check if we have the same endianess. */
2382 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2383 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM		 2384 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2385 {
2386 const char *msg;
2387
2388 if (bfd_big_endian (ibfd))
4ce794b7
AM		 2389 msg = _("%s: compiled for a big endian system "
2390 "and target is little endian");
5bd4f169 2391 else
4ce794b7
AM		 2392 msg = _("%s: compiled for a little endian system "
2393 "and target is big endian");
5bd4f169 2394
8f615d07 2395 (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
5bd4f169
AM		 2396
2397 bfd_set_error (bfd_error_wrong_format);
b34976b6 2398 return FALSE;
5bd4f169
AM		 2399 }
2400
b34976b6 2401 return TRUE;
5bd4f169 2402}
f0abc2a1 2403
5d35169e
AM		 2404/* Add extra PPC sections. */
2405
2406static struct bfd_elf_special_section const ppc64_elf_special_sections[]=
2407{
7dcb9820
AM		 2408 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2409 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2410 { ".plt", 4, 0, SHT_NOBITS, 0 },
2411 { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2412 { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2413 { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2414 { NULL, 0, 0, 0, 0 }
5d35169e
AM		 2415};
2416
f0abc2a1
AM		 2417struct _ppc64_elf_section_data
2418{
2419 struct bfd_elf_section_data elf;
411e1bfb
AM		 2420
2421 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM		 2422 union
2423 {
411e1bfb 2424 /* Points to the function code section for local opd entries. */
f0abc2a1 2425 asection **func_sec;
411e1bfb 2426 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM		 2427 long *adjust;
2428 } opd;
411e1bfb
AM		 2429
2430 /* An array for toc sections, indexed by offset/8.
2431 Specifies the relocation symbol index used at a given toc offset. */
2432 unsigned *t_symndx;
f0abc2a1
AM		 2433};
2434
2435#define ppc64_elf_section_data(sec) \
411e1bfb 2436 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2437
2438static bfd_boolean
4ce794b7 2439ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1
AM		 2440{
2441 struct _ppc64_elf_section_data *sdata;
2442 bfd_size_type amt = sizeof (*sdata);
2443
4ce794b7 2444 sdata = bfd_zalloc (abfd, amt);
f0abc2a1
AM		 2445 if (sdata == NULL)
2446 return FALSE;
4ce794b7 2447 sec->used_by_bfd = sdata;
f0abc2a1
AM		 2448
2449 return _bfd_elf_new_section_hook (abfd, sec);
2450}
5bd4f169 2451\f
65f38f15
AM		 2452/* The following functions are specific to the ELF linker, while
2453 functions above are used generally. Those named ppc64_elf_* are
2454 called by the main ELF linker code. They appear in this file more
2455 or less in the order in which they are called. eg.
2456 ppc64_elf_check_relocs is called early in the link process,
2457 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 2458 called.
2459
2460 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2461 functions have both a function code symbol and a function descriptor
2462 symbol. A call to foo in a relocatable object file looks like:
2463
2464 . .text
2465 . x:
2466 . bl .foo
2467 . nop
2468
2469 The function definition in another object file might be:
2470
2471 . .section .opd
2472 . foo: .quad .foo
2473 . .quad .TOC.@tocbase
2474 . .quad 0
2475 .
2476 . .text
2477 . .foo: blr
2478
2479 When the linker resolves the call during a static link, the branch
2480 unsurprisingly just goes to .foo and the .opd information is unused.
2481 If the function definition is in a shared library, things are a little
2482 different: The call goes via a plt call stub, the opd information gets
2483 copied to the plt, and the linker patches the nop.
2484
2485 . x:
2486 . bl .foo_stub
2487 . ld 2,40(1)
2488 .
2489 .
2490 . .foo_stub:
2491 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2492 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM		 2493 . std 2,40(1) # this is the general idea
2494 . ld 11,0(12)
2495 . ld 2,8(12)
2496 . mtctr 11
2497 . ld 11,16(12)
2498 . bctr
2499 .
2500 . .section .plt
2501 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2502
2503 The "reloc ()" notation is supposed to indicate that the linker emits
2504 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2505 copying.
2506
2507 What are the difficulties here? Well, firstly, the relocations
2508 examined by the linker in check_relocs are against the function code
2509 sym .foo, while the dynamic relocation in the plt is emitted against
2510 the function descriptor symbol, foo. Somewhere along the line, we need
2511 to carefully copy dynamic link information from one symbol to the other.
2512 Secondly, the generic part of the elf linker will make .foo a dynamic
2513 symbol as is normal for most other backends. We need foo dynamic
2514 instead, at least for an application final link. However, when
2515 creating a shared library containing foo, we need to have both symbols
2516 dynamic so that references to .foo are satisfied during the early
2517 stages of linking. Otherwise the linker might decide to pull in a
41bd81ab 2518 definition from some other object, eg. a static library. */
65f38f15
AM		 2519
2520/* The linker needs to keep track of the number of relocs that it
2521 decides to copy as dynamic relocs in check_relocs for each symbol.
2522 This is so that it can later discard them if they are found to be
2523 unnecessary. We store the information in a field extending the
2524 regular ELF linker hash table. */
2525
2526struct ppc_dyn_relocs
2527{
2528 struct ppc_dyn_relocs *next;
2529
2530 /* The input section of the reloc. */
2531 asection *sec;
2532
2533 /* Total number of relocs copied for the input section. */
2534 bfd_size_type count;
2535
2536 /* Number of pc-relative relocs copied for the input section. */
2537 bfd_size_type pc_count;
2538};
2539
411e1bfb
AM		 2540/* Track GOT entries needed for a given symbol. We might need more
2541 than one got entry per symbol. */
2542struct got_entry
2543{
2544 struct got_entry *next;
2545
e7b938ca 2546 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM		 2547 bfd_vma addend;
2548
e717da7e
AM		 2549 /* Unlike other ELF targets, we use separate GOT entries for the same
2550 symbol referenced from different input files. This is to support
2551 automatic multiple TOC/GOT sections, where the TOC base can vary
2552 from one input file to another.
2553
2554 Point to the BFD owning this GOT entry. */
2555 bfd *owner;
2556
2557 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2558 TLS_TPREL or TLS_DTPREL for tls entries. */
2559 char tls_type;
2560
e7b938ca 2561 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM		 2562 union
2563 {
2564 bfd_signed_vma refcount;
2565 bfd_vma offset;
2566 } got;
411e1bfb
AM		 2567};
2568
2569/* The same for PLT. */
2570struct plt_entry
2571{
2572 struct plt_entry *next;
2573
2574 bfd_vma addend;
2575
2576 union
2577 {
2578 bfd_signed_vma refcount;
2579 bfd_vma offset;
2580 } plt;
2581};
2582
65f38f15 2583/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM		 2584 selects those that must be copied when linking a shared library,
2585 even when the symbol is local. */
65f38f15 2586
411e1bfb 2587#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM		 2588 ((RTYPE) != R_PPC64_REL32 \
2589 && (RTYPE) != R_PPC64_REL64 \
04c9666a 2590 && (RTYPE) != R_PPC64_REL30)
65f38f15 2591
f4656909
AM		 2592/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2593 copying dynamic variables from a shared lib into an app's dynbss
2594 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 2595 shared lib. With code that gcc generates, it's vital that this be
2596 enabled; In the PowerPC64 ABI, the address of a function is actually
2597 the address of a function descriptor, which resides in the .opd
2598 section. gcc uses the descriptor directly rather than going via the
2599 GOT as some other ABI's do, which means that initialized function
2600 pointers must reference the descriptor. Thus, a function pointer
2601 initialized to the address of a function in a shared library will
2602 either require a copy reloc, or a dynamic reloc. Using a copy reloc
2603 redefines the function desctriptor symbol to point to the copy. This
2604 presents a problem as a plt entry for that function is also
2605 initialized from the function descriptor symbol and the copy reloc
2606 may not be initialized first. */
a23b6845 2607#define ELIMINATE_COPY_RELOCS 1
f4656909 2608
721956f4
AM		 2609/* Section name for stubs is the associated section name plus this
2610 string. */
2611#define STUB_SUFFIX ".stub"
2612
2613/* Linker stubs.
2614 ppc_stub_long_branch:
2615 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2616 destination, but a 24 bit branch in a stub section will reach.
2617 . b dest
2618
2619 ppc_stub_plt_branch:
2620 Similar to the above, but a 24 bit branch in the stub section won't
2621 reach its destination.
87e226ce
AM		 2622 . addis %r12,%r2,xxx@toc@ha
2623 . ld %r11,xxx@toc@l(%r12)
721956f4
AM		 2624 . mtctr %r11
2625 . bctr
2626
2627 ppc_stub_plt_call:
2628 Used to call a function in a shared library.
87e226ce 2629 . addis %r12,%r2,xxx@toc@ha
721956f4 2630 . std %r2,40(%r1)
87e226ce
AM		 2631 . ld %r11,xxx+0@toc@l(%r12)
2632 . ld %r2,xxx+8@toc@l(%r12)
721956f4 2633 . mtctr %r11
87e226ce 2634 . ld %r11,xxx+16@toc@l(%r12)
721956f4 2635 . bctr
ad8e1ba5
AM		 2636
2637 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
2638 code to adjust the value and save r2 to support multiple toc sections.
2639 A ppc_stub_long_branch with an r2 offset looks like:
2640 . std %r2,40(%r1)
2641 . addis %r2,%r2,off@ha
2642 . addi %r2,%r2,off@l
2643 . b dest
2644
2645 A ppc_stub_plt_branch with an r2 offset looks like:
2646 . std %r2,40(%r1)
2647 . addis %r12,%r2,xxx@toc@ha
2648 . ld %r11,xxx@toc@l(%r12)
2649 . addis %r2,%r2,off@ha
2650 . addi %r2,%r2,off@l
2651 . mtctr %r11
2652 . bctr
721956f4
AM		 2653*/
2654
2655enum ppc_stub_type {
2656 ppc_stub_none,
2657 ppc_stub_long_branch,
ad8e1ba5 2658 ppc_stub_long_branch_r2off,
721956f4 2659 ppc_stub_plt_branch,
ad8e1ba5 2660 ppc_stub_plt_branch_r2off,
721956f4
AM		 2661 ppc_stub_plt_call
2662};
2663
2664struct ppc_stub_hash_entry {
2665
2666 /* Base hash table entry structure. */
2667 struct bfd_hash_entry root;
2668
ad8e1ba5
AM		 2669 enum ppc_stub_type stub_type;
2670
721956f4
AM		 2671 /* The stub section. */
2672 asection *stub_sec;
2673
2674 /* Offset within stub_sec of the beginning of this stub. */
2675 bfd_vma stub_offset;
2676
2677 /* Given the symbol's value and its section we can determine its final
2678 value when building the stubs (so the stub knows where to jump. */
2679 bfd_vma target_value;
2680 asection *target_section;
2681
721956f4
AM		 2682 /* The symbol table entry, if any, that this was derived from. */
2683 struct ppc_link_hash_entry *h;
2684
411e1bfb
AM		 2685 /* And the reloc addend that this was derived from. */
2686 bfd_vma addend;
2687
721956f4
AM		 2688 /* Where this stub is being called from, or, in the case of combined
2689 stub sections, the first input section in the group. */
2690 asection *id_sec;
2691};
2692
2693struct ppc_branch_hash_entry {
2694
2695 /* Base hash table entry structure. */
2696 struct bfd_hash_entry root;
2697
2698 /* Offset within .branch_lt. */
2699 unsigned int offset;
2700
2701 /* Generation marker. */
2702 unsigned int iter;
2703};
65f38f15
AM		 2704
2705struct ppc_link_hash_entry
2706{
2707 struct elf_link_hash_entry elf;
2708
721956f4
AM		 2709 /* A pointer to the most recently used stub hash entry against this
2710 symbol. */
2711 struct ppc_stub_hash_entry *stub_cache;
2712
65f38f15
AM		 2713 /* Track dynamic relocs copied for this symbol. */
2714 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 2715
721956f4
AM		 2716 /* Link between function code and descriptor symbols. */
2717 struct elf_link_hash_entry *oh;
2718
e86ce104
AM		 2719 /* Flag function code and descriptor symbols. */
2720 unsigned int is_func:1;
2721 unsigned int is_func_descriptor:1;
1e2f5b6e 2722 unsigned int is_entry:1;
411e1bfb
AM		 2723
2724 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 2725 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2726 corresponding relocs are encountered during check_relocs.
2727 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2728 indicate the corresponding GOT entry type is not needed.
2729 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2730 a TPREL one. We use a separate flag rather than setting TPREL
2731 just for convenience in distinguishing the two cases. */
2732#define TLS_GD 1 /* GD reloc. */
2733#define TLS_LD 2 /* LD reloc. */
2734#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2735#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2736#define TLS_TLS 16 /* Any TLS reloc. */
2737#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2738#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2739 char tls_mask;
65f38f15
AM		 2740};
2741
2742/* ppc64 ELF linker hash table. */
2743
2744struct ppc_link_hash_table
2745{
2746 struct elf_link_hash_table elf;
2747
721956f4
AM		 2748 /* The stub hash table. */
2749 struct bfd_hash_table stub_hash_table;
2750
2751 /* Another hash table for plt_branch stubs. */
2752 struct bfd_hash_table branch_hash_table;
2753
2754 /* Linker stub bfd. */
2755 bfd *stub_bfd;
2756
2757 /* Linker call-backs. */
4ce794b7
AM		 2758 asection * (*add_stub_section) (const char *, asection *);
2759 void (*layout_sections_again) (void);
721956f4
AM		 2760
2761 /* Array to keep track of which stub sections have been created, and
2762 information on stub grouping. */
2763 struct map_stub {
2764 /* This is the section to which stubs in the group will be attached. */
2765 asection *link_sec;
2766 /* The stub section. */
2767 asection *stub_sec;
ad8e1ba5
AM		 2768 /* Along with elf_gp, specifies the TOC pointer used in this group. */
2769 bfd_vma toc_off;
721956f4
AM		 2770 } *stub_group;
2771
ad8e1ba5
AM		 2772 /* Support for multiple toc sections. */
2773 unsigned int no_multi_toc;
2774 unsigned int multi_toc_needed;
2775
2776 /* Temp used when calculating TOC pointers. */
2777 bfd_vma toc_curr;
2778
8f3bab57
AM		 2779 /* Highest input section id. */
2780 int top_id;
2781
734b6cf9
AM		 2782 /* Highest output section index. */
2783 int top_index;
2784
2785 /* List of input sections for each output section. */
2786 asection **input_list;
721956f4 2787
65f38f15 2788 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 2789 asection *got;
4ce794b7
AM		 2790 asection *plt;
2791 asection *relplt;
2792 asection *dynbss;
2793 asection *relbss;
2794 asection *glink;
82bd7b59 2795 asection *sfpr;
4ce794b7
AM		 2796 asection *brlt;
2797 asection *relbrlt;
ec338859 2798
411e1bfb
AM		 2799 /* Short-cut to first output tls section. */
2800 asection *tls_sec;
2801
2802 /* Shortcut to .__tls_get_addr. */
2803 struct elf_link_hash_entry *tls_get_addr;
2804
9b5ecbd0
AM		 2805 /* Statistics. */
2806 unsigned long stub_count[ppc_stub_plt_call];
2807
ad8e1ba5
AM		 2808 /* Set if we should emit symbols for stubs. */
2809 unsigned int emit_stub_syms;
2810
5d1634d7 2811 /* Set on error. */
721956f4
AM		 2812 unsigned int stub_error;
2813
2814 /* Flag set when small branches are detected. Used to
2815 select suitable defaults for the stub group size. */
2816 unsigned int has_14bit_branch;
2817
805fc799
AM		 2818 /* Set if we detect a reference undefined weak symbol. */
2819 unsigned int have_undefweak;
2820
721956f4
AM		 2821 /* Incremented every time we size stubs. */
2822 unsigned int stub_iteration;
5d1634d7 2823
ec338859
AM		 2824 /* Small local sym to section mapping cache. */
2825 struct sym_sec_cache sym_sec;
65f38f15
AM		 2826};
2827
2828/* Get the ppc64 ELF linker hash table from a link_info structure. */
2829
2830#define ppc_hash_table(p) \
2831 ((struct ppc_link_hash_table *) ((p)->hash))
2832
721956f4
AM		 2833#define ppc_stub_hash_lookup(table, string, create, copy) \
2834 ((struct ppc_stub_hash_entry *) \
2835 bfd_hash_lookup ((table), (string), (create), (copy)))
2836
2837#define ppc_branch_hash_lookup(table, string, create, copy) \
2838 ((struct ppc_branch_hash_entry *) \
2839 bfd_hash_lookup ((table), (string), (create), (copy)))
2840
2841/* Create an entry in the stub hash table. */
2842
2843static struct bfd_hash_entry *
4ce794b7
AM		 2844stub_hash_newfunc (struct bfd_hash_entry *entry,
2845 struct bfd_hash_table *table,
2846 const char *string)
721956f4
AM		 2847{
2848 /* Allocate the structure if it has not already been allocated by a
2849 subclass. */
2850 if (entry == NULL)
2851 {
2852 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
2853 if (entry == NULL)
2854 return entry;
2855 }
2856
2857 /* Call the allocation method of the superclass. */
2858 entry = bfd_hash_newfunc (entry, table, string);
2859 if (entry != NULL)
2860 {
2861 struct ppc_stub_hash_entry *eh;
2862
2863 /* Initialize the local fields. */
2864 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 2865 eh->stub_type = ppc_stub_none;
721956f4
AM		 2866 eh->stub_sec = NULL;
2867 eh->stub_offset = 0;
2868 eh->target_value = 0;
2869 eh->target_section = NULL;
721956f4
AM		 2870 eh->h = NULL;
2871 eh->id_sec = NULL;
2872 }
2873
2874 return entry;
2875}
2876
2877/* Create an entry in the branch hash table. */
2878
2879static struct bfd_hash_entry *
4ce794b7
AM		 2880branch_hash_newfunc (struct bfd_hash_entry *entry,
2881 struct bfd_hash_table *table,
2882 const char *string)
721956f4
AM		 2883{
2884 /* Allocate the structure if it has not already been allocated by a
2885 subclass. */
2886 if (entry == NULL)
2887 {
2888 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
2889 if (entry == NULL)
2890 return entry;
2891 }
2892
2893 /* Call the allocation method of the superclass. */
2894 entry = bfd_hash_newfunc (entry, table, string);
2895 if (entry != NULL)
2896 {
2897 struct ppc_branch_hash_entry *eh;
2898
2899 /* Initialize the local fields. */
2900 eh = (struct ppc_branch_hash_entry *) entry;
2901 eh->offset = 0;
2902 eh->iter = 0;
2903 }
2904
2905 return entry;
2906}
2907
65f38f15
AM		 2908/* Create an entry in a ppc64 ELF linker hash table. */
2909
2910static struct bfd_hash_entry *
4ce794b7
AM		 2911link_hash_newfunc (struct bfd_hash_entry *entry,
2912 struct bfd_hash_table *table,
2913 const char *string)
65f38f15
AM		 2914{
2915 /* Allocate the structure if it has not already been allocated by a
2916 subclass. */
2917 if (entry == NULL)
2918 {
2919 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
2920 if (entry == NULL)
2921 return entry;
2922 }
2923
2924 /* Call the allocation method of the superclass. */
2925 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2926 if (entry != NULL)
2927 {
2928 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
2929
721956f4 2930 eh->stub_cache = NULL;
65f38f15 2931 eh->dyn_relocs = NULL;
721956f4 2932 eh->oh = NULL;
e86ce104
AM		 2933 eh->is_func = 0;
2934 eh->is_func_descriptor = 0;
1e2f5b6e 2935 eh->is_entry = 0;
e7b938ca 2936 eh->tls_mask = 0;
65f38f15
AM		 2937 }
2938
2939 return entry;
2940}
2941
2942/* Create a ppc64 ELF linker hash table. */
2943
2944static struct bfd_link_hash_table *
4ce794b7 2945ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 2946{
2947 struct ppc_link_hash_table *htab;
2948 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
2949
4ce794b7 2950 htab = bfd_zmalloc (amt);
65f38f15
AM		 2951 if (htab == NULL)
2952 return NULL;
2953
2954 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
2955 {
e2d34d7d 2956 free (htab);
65f38f15
AM		 2957 return NULL;
2958 }
2959
721956f4
AM		 2960 /* Init the stub hash table too. */
2961 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
2962 return NULL;
2963
2964 /* And the branch hash table. */
2965 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
2966 return NULL;
2967
3254fd24
AM		 2968 /* Initializing two fields of the union is just cosmetic. We really
2969 only care about glist, but when compiled on a 32-bit host the
2970 bfd_vma fields are larger. Setting the bfd_vma to zero makes
2971 debugger inspection of these fields look nicer. */
2972 htab->elf.init_refcount.refcount = 0;
2973 htab->elf.init_refcount.glist = NULL;
2974 htab->elf.init_offset.offset = 0;
2975 htab->elf.init_offset.glist = NULL;
2976
65f38f15
AM		 2977 return &htab->elf.root;
2978}
2979
721956f4
AM		 2980/* Free the derived linker hash table. */
2981
2982static void
4ce794b7 2983ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM		 2984{
2985 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
2986
2987 bfd_hash_table_free (&ret->stub_hash_table);
2988 bfd_hash_table_free (&ret->branch_hash_table);
2989 _bfd_generic_link_hash_table_free (hash);
2990}
2991
e717da7e
AM		 2992/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
2993
2994void
2995ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
2996{
2997 struct ppc_link_hash_table *htab;
2998
2999 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3000
3001/* Always hook our dynamic sections into the first bfd, which is the
3002 linker created stub bfd. This ensures that the GOT header is at
3003 the start of the output TOC section. */
3004 htab = ppc_hash_table (info);
3005 htab->stub_bfd = abfd;
3006 htab->elf.dynobj = abfd;
3007}
3008
721956f4
AM		 3009/* Build a name for an entry in the stub hash table. */
3010
3011static char *
4ce794b7
AM		 3012ppc_stub_name (const asection *input_section,
3013 const asection *sym_sec,
3014 const struct ppc_link_hash_entry *h,
3015 const Elf_Internal_Rela *rel)
721956f4
AM		 3016{
3017 char *stub_name;
3018 bfd_size_type len;
3019
3020 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3021 offsets from a sym as a branch target? In fact, we could
3022 probably assume the addend is always zero. */
3023 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3024
3025 if (h)
3026 {
3027 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3028 stub_name = bfd_malloc (len);
3029 if (stub_name != NULL)
3030 {
97b639ba 3031 sprintf (stub_name, "%08x.%s+%x",
721956f4
AM		 3032 input_section->id & 0xffffffff,
3033 h->elf.root.root.string,
3034 (int) rel->r_addend & 0xffffffff);
3035 }
3036 }
3037 else
3038 {
ad8e1ba5 3039 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4
AM		 3040 stub_name = bfd_malloc (len);
3041 if (stub_name != NULL)
3042 {
97b639ba 3043 sprintf (stub_name, "%08x.%x:%x+%x",
721956f4
AM		 3044 input_section->id & 0xffffffff,
3045 sym_sec->id & 0xffffffff,
3046 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3047 (int) rel->r_addend & 0xffffffff);
3048 }
3049 }
3050 return stub_name;
3051}
3052
3053/* Look up an entry in the stub hash. Stub entries are cached because
3054 creating the stub name takes a bit of time. */
3055
3056static struct ppc_stub_hash_entry *
4ce794b7
AM		 3057ppc_get_stub_entry (const asection *input_section,
3058 const asection *sym_sec,
3059 struct elf_link_hash_entry *hash,
3060 const Elf_Internal_Rela *rel,
3061 struct ppc_link_hash_table *htab)
721956f4
AM		 3062{
3063 struct ppc_stub_hash_entry *stub_entry;
3064 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3065 const asection *id_sec;
3066
3067 /* If this input section is part of a group of sections sharing one
3068 stub section, then use the id of the first section in the group.
3069 Stub names need to include a section id, as there may well be
3070 more than one stub used to reach say, printf, and we need to
3071 distinguish between them. */
3072 id_sec = htab->stub_group[input_section->id].link_sec;
3073
3074 if (h != NULL && h->stub_cache != NULL
3075 && h->stub_cache->h == h
3076 && h->stub_cache->id_sec == id_sec)
3077 {
3078 stub_entry = h->stub_cache;
3079 }
3080 else
3081 {
3082 char *stub_name;
3083
3084 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3085 if (stub_name == NULL)
3086 return NULL;
3087
3088 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3089 stub_name, FALSE, FALSE);
721956f4
AM		 3090 if (h != NULL)
3091 h->stub_cache = stub_entry;
3092
3093 free (stub_name);
3094 }
3095
3096 return stub_entry;
3097}
3098
3099/* Add a new stub entry to the stub hash. Not all fields of the new
3100 stub entry are initialised. */
3101
3102static struct ppc_stub_hash_entry *
4ce794b7
AM		 3103ppc_add_stub (const char *stub_name,
3104 asection *section,
3105 struct ppc_link_hash_table *htab)
721956f4
AM		 3106{
3107 asection *link_sec;
3108 asection *stub_sec;
3109 struct ppc_stub_hash_entry *stub_entry;
3110
3111 link_sec = htab->stub_group[section->id].link_sec;
3112 stub_sec = htab->stub_group[section->id].stub_sec;
3113 if (stub_sec == NULL)
3114 {
3115 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3116 if (stub_sec == NULL)
3117 {
d4c88bbb 3118 size_t namelen;
721956f4
AM		 3119 bfd_size_type len;
3120 char *s_name;
3121
d4c88bbb
AM		 3122 namelen = strlen (link_sec->name);
3123 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM		 3124 s_name = bfd_alloc (htab->stub_bfd, len);
3125 if (s_name == NULL)
3126 return NULL;
3127
d4c88bbb
AM		 3128 memcpy (s_name, link_sec->name, namelen);
3129 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM		 3130 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3131 if (stub_sec == NULL)
3132 return NULL;
3133 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3134 }
3135 htab->stub_group[section->id].stub_sec = stub_sec;
3136 }
3137
3138 /* Enter this entry into the linker stub hash table. */
3139 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3140 TRUE, FALSE);
721956f4
AM		 3141 if (stub_entry == NULL)
3142 {
3143 (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
3144 bfd_archive_filename (section->owner),
3145 stub_name);
3146 return NULL;
3147 }
3148
3149 stub_entry->stub_sec = stub_sec;
3150 stub_entry->stub_offset = 0;
3151 stub_entry->id_sec = link_sec;
3152 return stub_entry;
3153}
3154
82bd7b59
AM		 3155/* Create sections for linker generated code. */
3156
b34976b6 3157static bfd_boolean
4ce794b7 3158create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM		 3159{
3160 struct ppc_link_hash_table *htab;
3161 flagword flags;
3162
3163 htab = ppc_hash_table (info);
3164
3165 /* Create .sfpr for code to save and restore fp regs. */
3166 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3167 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
721956f4 3168 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
82bd7b59
AM		 3169 if (htab->sfpr == NULL
3170 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3171 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3172 return FALSE;
82bd7b59 3173
721956f4 3174 /* Create .glink for lazy dynamic linking support. */
4ce794b7
AM		 3175 htab->glink = bfd_make_section_anyway (dynobj, ".glink");
3176 if (htab->glink == NULL
3177 || ! bfd_set_section_flags (dynobj, htab->glink, flags)
3178 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
b34976b6 3179 return FALSE;
82bd7b59 3180
721956f4
AM		 3181 /* Create .branch_lt for plt_branch stubs. */
3182 flags = (SEC_ALLOC | SEC_LOAD
3183 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3184 htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3185 if (htab->brlt == NULL
3186 || ! bfd_set_section_flags (dynobj, htab->brlt, flags)
3187 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3188 return FALSE;
721956f4
AM		 3189
3190 if (info->shared)
3191 {
3192 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3193 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3194 htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
3195 if (!htab->relbrlt
3196 || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags)
3197 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
b34976b6 3198 return FALSE;
721956f4 3199 }
b34976b6 3200 return TRUE;
82bd7b59
AM		 3201}
3202
e717da7e
AM		 3203/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3204 not already done. */
65f38f15 3205
b34976b6 3206static bfd_boolean
e717da7e 3207create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3208{
e717da7e
AM		 3209 asection *got, *relgot;
3210 flagword flags;
3211 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3212
4ce794b7 3213 if (!htab->got)
e717da7e
AM		 3214 {
3215 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3216 return FALSE;
3217
3218 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3219 if (!htab->got)
3220 abort ();
3221 }
3222
3223 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3224 | SEC_LINKER_CREATED);
3225
3226 got = bfd_make_section (abfd, ".got");
3227 if (!got
3228 || !bfd_set_section_flags (abfd, got, flags)
3229 || !bfd_set_section_alignment (abfd, got, 3))
3230 return FALSE;
65f38f15 3231
e717da7e
AM		 3232 relgot = bfd_make_section (abfd, ".rela.got");
3233 if (!relgot
3234 || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY)
3235 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3236 return FALSE;
e717da7e
AM		 3237
3238 ppc64_elf_tdata (abfd)->got = got;
3239 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3240 return TRUE;
65f38f15 3241}
5bd4f169 3242
82bd7b59 3243/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3244
b34976b6 3245static bfd_boolean
4ce794b7 3246ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3247{
65f38f15 3248 struct ppc_link_hash_table *htab;
5bd4f169 3249
65f38f15 3250 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3251 return FALSE;
65f38f15 3252
e717da7e
AM		 3253 htab = ppc_hash_table (info);
3254 if (!htab->got)
3255 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM		 3256 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3257 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3258 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3259 if (!info->shared)
4ce794b7 3260 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3261
e717da7e 3262 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3263 || (!info->shared && !htab->relbss))
65f38f15
AM		 3264 abort ();
3265
b34976b6 3266 return TRUE;
5bd4f169
AM		 3267}
3268
65f38f15
AM		 3269/* Copy the extra info we tack onto an elf_link_hash_entry. */
3270
3271static void
9c5bfbb7
AM		 3272ppc64_elf_copy_indirect_symbol
3273 (const struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3274 struct elf_link_hash_entry *dir,
3275 struct elf_link_hash_entry *ind)
65f38f15
AM		 3276{
3277 struct ppc_link_hash_entry *edir, *eind;
81848ca0 3278 flagword mask;
65f38f15
AM		 3279
3280 edir = (struct ppc_link_hash_entry *) dir;
3281 eind = (struct ppc_link_hash_entry *) ind;
3282
411e1bfb 3283 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3284 if (eind->dyn_relocs != NULL)
65f38f15 3285 {
bbd7ec4a
AM		 3286 if (edir->dyn_relocs != NULL)
3287 {
3288 struct ppc_dyn_relocs **pp;
3289 struct ppc_dyn_relocs *p;
3290
411e1bfb 3291 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM		 3292 abort ();
3293
3294 /* Add reloc counts against the weak sym to the strong sym
3295 list. Merge any entries against the same section. */
3296 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3297 {
3298 struct ppc_dyn_relocs *q;
3299
3300 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3301 if (q->sec == p->sec)
3302 {
3303 q->pc_count += p->pc_count;
3304 q->count += p->count;
3305 *pp = p->next;
3306 break;
3307 }
3308 if (q == NULL)
3309 pp = &p->next;
3310 }
3311 *pp = edir->dyn_relocs;
3312 }
3313
65f38f15
AM		 3314 edir->dyn_relocs = eind->dyn_relocs;
3315 eind->dyn_relocs = NULL;
3316 }
65f38f15 3317
6349e628
AM		 3318 edir->is_func |= eind->is_func;
3319 edir->is_func_descriptor |= eind->is_func_descriptor;
3320 edir->is_entry |= eind->is_entry;
58ac9f71 3321 edir->tls_mask |= eind->tls_mask;
6349e628 3322
81848ca0
AM		 3323 mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR
3324 | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF);
3325 /* If called to transfer flags for a weakdef during processing
3326 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
3327 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3328 if (ELIMINATE_COPY_RELOCS
3329 && eind->elf.root.type != bfd_link_hash_indirect
3330 && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
3331 mask &= ~ELF_LINK_NON_GOT_REF;
3332
3333 edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask;
6349e628
AM		 3334
3335 /* If we were called to copy over info for a weak sym, that's all. */
3336 if (eind->elf.root.type != bfd_link_hash_indirect)
3337 return;
3338
81848ca0
AM		 3339 /* Copy over got entries that we may have already seen to the
3340 symbol which just became indirect. */
411e1bfb
AM		 3341 if (eind->elf.got.glist != NULL)
3342 {
3343 if (edir->elf.got.glist != NULL)
3344 {
3345 struct got_entry **entp;
3346 struct got_entry *ent;
3347
3348 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3349 {
3350 struct got_entry *dent;
3351
3352 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3353 if (dent->addend == ent->addend
e717da7e 3354 && dent->owner == ent->owner
411e1bfb
AM		 3355 && dent->tls_type == ent->tls_type)
3356 {
3357 dent->got.refcount += ent->got.refcount;
3358 *entp = ent->next;
3359 break;
3360 }
3361 if (dent == NULL)
3362 entp = &ent->next;
3363 }
3364 *entp = edir->elf.got.glist;
3365 }
3366
3367 edir->elf.got.glist = eind->elf.got.glist;
3368 eind->elf.got.glist = NULL;
3369 }
3370
3371 /* And plt entries. */
3372 if (eind->elf.plt.plist != NULL)
3373 {
3374 if (edir->elf.plt.plist != NULL)
3375 {
3376 struct plt_entry **entp;
3377 struct plt_entry *ent;
3378
3379 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3380 {
3381 struct plt_entry *dent;
3382
3383 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3384 if (dent->addend == ent->addend)
3385 {
3386 dent->plt.refcount += ent->plt.refcount;
3387 *entp = ent->next;
3388 break;
3389 }
3390 if (dent == NULL)
3391 entp = &ent->next;
3392 }
3393 *entp = edir->elf.plt.plist;
3394 }
3395
3396 edir->elf.plt.plist = eind->elf.plt.plist;
3397 eind->elf.plt.plist = NULL;
3398 }
3399
411e1bfb
AM		 3400 if (edir->elf.dynindx == -1)
3401 {
3402 edir->elf.dynindx = eind->elf.dynindx;
3403 edir->elf.dynstr_index = eind->elf.dynstr_index;
3404 eind->elf.dynindx = -1;
3405 eind->elf.dynstr_index = 0;
3406 }
3407 else
3408 BFD_ASSERT (eind->elf.dynindx == -1);
3409}
3410
3411/* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3412 symbols undefined on the command-line. */
3413
3414bfd_boolean
4ce794b7 3415ppc64_elf_mark_entry_syms (struct bfd_link_info *info)
411e1bfb
AM		 3416{
3417 struct ppc_link_hash_table *htab;
3418 struct bfd_sym_chain *sym;
3419
3420 htab = ppc_hash_table (info);
3421 for (sym = info->gc_sym_list; sym; sym = sym->next)
3422 {
3423 struct elf_link_hash_entry *h;
3424
3425 h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
3426 if (h != NULL)
3427 ((struct ppc_link_hash_entry *) h)->is_entry = 1;
3428 }
3429 return TRUE;
3430}
3431
3432static bfd_boolean
4ce794b7
AM		 3433update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
3434 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 3435{
3436 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 3437 char *local_got_tls_masks;
411e1bfb
AM		 3438
3439 if (local_got_ents == NULL)
3440 {
3441 bfd_size_type size = symtab_hdr->sh_info;
3442
e7b938ca 3443 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 3444 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM		 3445 if (local_got_ents == NULL)
3446 return FALSE;
3447 elf_local_got_ents (abfd) = local_got_ents;
3448 }
3449
3450 if ((tls_type & TLS_EXPLICIT) == 0)
3451 {
3452 struct got_entry *ent;
3453
3454 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 3455 if (ent->addend == r_addend
3456 && ent->owner == abfd
3457 && ent->tls_type == tls_type)
411e1bfb
AM		 3458 break;
3459 if (ent == NULL)
3460 {
3461 bfd_size_type amt = sizeof (*ent);
4ce794b7 3462 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 3463 if (ent == NULL)
3464 return FALSE;
3465 ent->next = local_got_ents[r_symndx];
3466 ent->addend = r_addend;
e717da7e 3467 ent->owner = abfd;
411e1bfb
AM		 3468 ent->tls_type = tls_type;
3469 ent->got.refcount = 0;
3470 local_got_ents[r_symndx] = ent;
3471 }
3472 ent->got.refcount += 1;
3473 }
3474
e7b938ca
AM		 3475 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
3476 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 3477 return TRUE;
65f38f15
AM		 3478}
3479
411e1bfb 3480static bfd_boolean
4ce794b7 3481update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 3482{
411e1bfb 3483 struct plt_entry *ent;
1e2f5b6e 3484
411e1bfb
AM		 3485 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
3486 if (ent->addend == addend)
3487 break;
3488 if (ent == NULL)
1e2f5b6e 3489 {
411e1bfb 3490 bfd_size_type amt = sizeof (*ent);
4ce794b7 3491 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 3492 if (ent == NULL)
3493 return FALSE;
3494 ent->next = eh->elf.plt.plist;
3495 ent->addend = addend;
3496 ent->plt.refcount = 0;
3497 eh->elf.plt.plist = ent;
1e2f5b6e 3498 }
411e1bfb
AM		 3499 ent->plt.refcount += 1;
3500 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3501 eh->is_func = 1;
b34976b6 3502 return TRUE;
1e2f5b6e
AM		 3503}
3504
50bc7936
AM		 3505/* Find the function descriptor hash entry from the given function code
3506 hash entry FH. Link the entries via their OH fields. */
3507static struct ppc_link_hash_entry *
3508get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
3509{
3510 struct ppc_link_hash_entry *fdh = (struct ppc_link_hash_entry *) fh->oh;
3511
3512 if (fdh == NULL)
3513 {
3514 const char *fd_name = fh->elf.root.root.string + 1;
3515
3516 fdh = (struct ppc_link_hash_entry *)
3517 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
3518 if (fdh != NULL)
3519 {
3520 fdh->is_func_descriptor = 1;
3521 fdh->oh = &fh->elf;
3522 fh->is_func = 1;
3523 fh->oh = &fdh->elf;
3524 }
3525 }
3526
3527 return fdh;
3528}
3529
5bd4f169 3530/* Look through the relocs for a section during the first phase, and
65f38f15 3531 calculate needed space in the global offset table, procedure
5d1634d7 3532 linkage table, and dynamic reloc sections. */
5bd4f169 3533
b34976b6 3534static bfd_boolean
4ce794b7
AM		 3535ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
3536 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 3537{
65f38f15 3538 struct ppc_link_hash_table *htab;
5bd4f169
AM		 3539 Elf_Internal_Shdr *symtab_hdr;
3540 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3541 const Elf_Internal_Rela *rel;
3542 const Elf_Internal_Rela *rel_end;
5bd4f169 3543 asection *sreloc;
1e2f5b6e 3544 asection **opd_sym_map;
5bd4f169 3545
1049f94e 3546 if (info->relocatable)
b34976b6 3547 return TRUE;
5bd4f169 3548
65f38f15 3549 htab = ppc_hash_table (info);
5bd4f169 3550 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM		 3551
3552 sym_hashes = elf_sym_hashes (abfd);
3553 sym_hashes_end = (sym_hashes
1e2f5b6e
AM		 3554 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
3555 - symtab_hdr->sh_info);
5bd4f169
AM		 3556
3557 sreloc = NULL;
1e2f5b6e
AM		 3558 opd_sym_map = NULL;
3559 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
3560 {
3561 /* Garbage collection needs some extra help with .opd sections.
3562 We don't want to necessarily keep everything referenced by
3563 relocs in .opd, as that would keep all functions. Instead,
3564 if we reference an .opd symbol (a function descriptor), we
3565 want to keep the function code symbol's section. This is
3566 easy for global symbols, but for local syms we need to keep
3567 information about the associated function section. Later, if
3568 edit_opd deletes entries, we'll use this array to adjust
3569 local syms in .opd. */
3570 union opd_info {
3571 asection *func_section;
3572 long entry_adjust;
3573 };
3574 bfd_size_type amt;
3575
3576 amt = sec->_raw_size * sizeof (union opd_info) / 24;
4ce794b7 3577 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 3578 if (opd_sym_map == NULL)
b34976b6 3579 return FALSE;
f0abc2a1 3580 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 3581 }
5bd4f169 3582
82bd7b59
AM		 3583 if (htab->sfpr == NULL
3584 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 3585 return FALSE;
82bd7b59 3586
5bd4f169
AM		 3587 rel_end = relocs + sec->reloc_count;
3588 for (rel = relocs; rel < rel_end; rel++)
3589 {
3590 unsigned long r_symndx;
3591 struct elf_link_hash_entry *h;
04c9666a 3592 enum elf_ppc64_reloc_type r_type;
411e1bfb 3593 int tls_type = 0;
5bd4f169
AM		 3594
3595 r_symndx = ELF64_R_SYM (rel->r_info);
3596 if (r_symndx < symtab_hdr->sh_info)
3597 h = NULL;
3598 else
3599 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3600
4ce794b7 3601 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 3602 switch (r_type)
5bd4f169 3603 {
411e1bfb
AM		 3604 case R_PPC64_GOT_TLSLD16:
3605 case R_PPC64_GOT_TLSLD16_LO:
3606 case R_PPC64_GOT_TLSLD16_HI:
3607 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 3608 ppc64_tlsld_got (abfd)->refcount += 1;
951fd09b 3609 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 3610 goto dogottls;
3611
3612 case R_PPC64_GOT_TLSGD16:
3613 case R_PPC64_GOT_TLSGD16_LO:
3614 case R_PPC64_GOT_TLSGD16_HI:
3615 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 3616 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 3617 goto dogottls;
3618
3619 case R_PPC64_GOT_TPREL16_DS:
3620 case R_PPC64_GOT_TPREL16_LO_DS:
3621 case R_PPC64_GOT_TPREL16_HI:
3622 case R_PPC64_GOT_TPREL16_HA:
3623 if (info->shared)
3624 info->flags |= DF_STATIC_TLS;
3625 tls_type = TLS_TLS | TLS_TPREL;
3626 goto dogottls;
3627
3628 case R_PPC64_GOT_DTPREL16_DS:
3629 case R_PPC64_GOT_DTPREL16_LO_DS:
3630 case R_PPC64_GOT_DTPREL16_HI:
3631 case R_PPC64_GOT_DTPREL16_HA:
3632 tls_type = TLS_TLS | TLS_DTPREL;
3633 dogottls:
3634 sec->has_tls_reloc = 1;
3635 /* Fall thru */
3636
5bd4f169 3637 case R_PPC64_GOT16:
5bd4f169 3638 case R_PPC64_GOT16_DS:
65f38f15
AM		 3639 case R_PPC64_GOT16_HA:
3640 case R_PPC64_GOT16_HI:
3641 case R_PPC64_GOT16_LO:
5bd4f169 3642 case R_PPC64_GOT16_LO_DS:
65f38f15 3643 /* This symbol requires a global offset table entry. */
ad8e1ba5 3644 sec->has_gp_reloc = 1;
e717da7e
AM		 3645 if (ppc64_elf_tdata (abfd)->got == NULL
3646 && !create_got_section (abfd, info))
b34976b6 3647 return FALSE;
5bd4f169
AM		 3648
3649 if (h != NULL)
3650 {
411e1bfb
AM		 3651 struct ppc_link_hash_entry *eh;
3652 struct got_entry *ent;
65f38f15 3653
411e1bfb
AM		 3654 eh = (struct ppc_link_hash_entry *) h;
3655 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
3656 if (ent->addend == rel->r_addend
e717da7e 3657 && ent->owner == abfd
411e1bfb
AM		 3658 && ent->tls_type == tls_type)
3659 break;
3660 if (ent == NULL)
5bd4f169 3661 {
411e1bfb 3662 bfd_size_type amt = sizeof (*ent);
4ce794b7 3663 ent = bfd_alloc (abfd, amt);
411e1bfb 3664 if (ent == NULL)
b34976b6 3665 return FALSE;
411e1bfb
AM		 3666 ent->next = eh->elf.got.glist;
3667 ent->addend = rel->r_addend;
e717da7e 3668 ent->owner = abfd;
411e1bfb
AM		 3669 ent->tls_type = tls_type;
3670 ent->got.refcount = 0;
3671 eh->elf.got.glist = ent;
5bd4f169 3672 }
411e1bfb 3673 ent->got.refcount += 1;
e7b938ca 3674 eh->tls_mask |= tls_type;
5bd4f169 3675 }
411e1bfb
AM		 3676 else
3677 /* This is a global offset table entry for a local symbol. */
3678 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3679 rel->r_addend, tls_type))
3680 return FALSE;
5bd4f169
AM		 3681 break;
3682
5bd4f169 3683 case R_PPC64_PLT16_HA:
65f38f15
AM		 3684 case R_PPC64_PLT16_HI:
3685 case R_PPC64_PLT16_LO:
3686 case R_PPC64_PLT32:
3687 case R_PPC64_PLT64:
5bd4f169 3688 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 3689 actually build the entry in adjust_dynamic_symbol,
3690 because this might be a case of linking PIC code without
3691 linking in any dynamic objects, in which case we don't
3692 need to generate a procedure linkage table after all. */
5bd4f169
AM		 3693 if (h == NULL)
3694 {
3695 /* It does not make sense to have a procedure linkage
3fad3c7c 3696 table entry for a local symbol. */
5bd4f169 3697 bfd_set_error (bfd_error_bad_value);
b34976b6 3698 return FALSE;
5bd4f169 3699 }
411e1bfb
AM		 3700 else
3701 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3702 rel->r_addend))
3703 return FALSE;
5bd4f169
AM		 3704 break;
3705
3706 /* The following relocations don't need to propagate the
3707 relocation if linking a shared object since they are
3708 section relative. */
3709 case R_PPC64_SECTOFF:
3710 case R_PPC64_SECTOFF_LO:
3711 case R_PPC64_SECTOFF_HI:
3712 case R_PPC64_SECTOFF_HA:
3713 case R_PPC64_SECTOFF_DS:
3714 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 3715 case R_PPC64_DTPREL16:
3716 case R_PPC64_DTPREL16_LO:
3717 case R_PPC64_DTPREL16_HI:
3718 case R_PPC64_DTPREL16_HA:
3719 case R_PPC64_DTPREL16_DS:
3720 case R_PPC64_DTPREL16_LO_DS:
3721 case R_PPC64_DTPREL16_HIGHER:
3722 case R_PPC64_DTPREL16_HIGHERA:
3723 case R_PPC64_DTPREL16_HIGHEST:
3724 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 3725 break;
3726
ad8e1ba5
AM		 3727 /* Nor do these. */
3728 case R_PPC64_TOC16:
3729 case R_PPC64_TOC16_LO:
3730 case R_PPC64_TOC16_HI:
3731 case R_PPC64_TOC16_HA:
3732 case R_PPC64_TOC16_DS:
3733 case R_PPC64_TOC16_LO_DS:
3734 sec->has_gp_reloc = 1;
3735 break;
3736
5bd4f169
AM		 3737 /* This relocation describes the C++ object vtable hierarchy.
3738 Reconstruct it for later use during GC. */
3739 case R_PPC64_GNU_VTINHERIT:
3740 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3741 return FALSE;
5bd4f169
AM		 3742 break;
3743
3744 /* This relocation describes which C++ vtable entries are actually
3745 used. Record for later use during GC. */
3746 case R_PPC64_GNU_VTENTRY:
3747 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 3748 return FALSE;
5bd4f169
AM		 3749 break;
3750
721956f4
AM		 3751 case R_PPC64_REL14:
3752 case R_PPC64_REL14_BRTAKEN:
3753 case R_PPC64_REL14_BRNTAKEN:
3754 htab->has_14bit_branch = 1;
3755 /* Fall through. */
3756
5d1634d7 3757 case R_PPC64_REL24:
e86ce104
AM		 3758 if (h != NULL
3759 && h->root.root.string[0] == '.'
3760 && h->root.root.string[1] != 0)
5d1634d7
AM		 3761 {
3762 /* We may need a .plt entry if the function this reloc
3763 refers to is in a shared lib. */
411e1bfb
AM		 3764 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3765 rel->r_addend))
3766 return FALSE;
3767 if (h == htab->tls_get_addr)
3768 sec->has_tls_reloc = 1;
a48ebf4d
AM		 3769 else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15)
3770 == 0)
3771 && (h->root.root.string[15] == 0
3772 || h->root.root.string[15] == '@'))
411e1bfb
AM		 3773 {
3774 htab->tls_get_addr = h;
3775 sec->has_tls_reloc = 1;
3776 }
3777 }
3778 break;
3779
3780 case R_PPC64_TPREL64:
3781 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
3782 if (info->shared)
3783 info->flags |= DF_STATIC_TLS;
3784 goto dotlstoc;
3785
3786 case R_PPC64_DTPMOD64:
3787 if (rel + 1 < rel_end
3788 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
3789 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 3790 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 3791 else
951fd09b 3792 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 3793 goto dotlstoc;
3794
3795 case R_PPC64_DTPREL64:
3796 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
3797 if (rel != relocs
3798 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
3799 && rel[-1].r_offset == rel->r_offset - 8)
3800 /* This is the second reloc of a dtpmod, dtprel pair.
3801 Don't mark with TLS_DTPREL. */
3802 goto dodyn;
3803
3804 dotlstoc:
3805 sec->has_tls_reloc = 1;
3806 if (h != NULL)
3807 {
3808 struct ppc_link_hash_entry *eh;
3809 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 3810 eh->tls_mask |= tls_type;
411e1bfb
AM		 3811 }
3812 else
3813 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3814 rel->r_addend, tls_type))
3815 return FALSE;
3816
3817 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3818 {
e7b938ca 3819 /* One extra to simplify get_tls_mask. */
951fd09b 3820 bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1;
4ce794b7 3821 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
411e1bfb
AM		 3822 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3823 return FALSE;
3824 }
3825 BFD_ASSERT (rel->r_offset % 8 == 0);
3826 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM		 3827
3828 /* Mark the second slot of a GD or LD entry.
3829 -1 to indicate GD and -2 to indicate LD. */
3830 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3831 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
3832 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3833 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 3834 goto dodyn;
3835
3836 case R_PPC64_TPREL16:
3837 case R_PPC64_TPREL16_LO:
3838 case R_PPC64_TPREL16_HI:
3839 case R_PPC64_TPREL16_HA:
3840 case R_PPC64_TPREL16_DS:
3841 case R_PPC64_TPREL16_LO_DS:
3842 case R_PPC64_TPREL16_HIGHER:
3843 case R_PPC64_TPREL16_HIGHERA:
3844 case R_PPC64_TPREL16_HIGHEST:
3845 case R_PPC64_TPREL16_HIGHESTA:
3846 if (info->shared)
3847 {
3848 info->flags |= DF_STATIC_TLS;
3849 goto dodyn;
5d1634d7
AM		 3850 }
3851 break;
3852
e86ce104 3853 case R_PPC64_ADDR64:
1e2f5b6e 3854 if (opd_sym_map != NULL
e86ce104
AM		 3855 && h != NULL
3856 && h->root.root.string[0] == '.'
3857 && h->root.root.string[1] != 0)
50bc7936 3858 get_fdh ((struct ppc_link_hash_entry *) h, htab);
e86ce104 3859
1e2f5b6e
AM		 3860 if (opd_sym_map != NULL
3861 && h == NULL
3862 && rel + 1 < rel_end
4ce794b7 3863 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e
AM		 3864 {
3865 asection *s;
3866
3867 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3868 r_symndx);
3869 if (s == NULL)
b34976b6 3870 return FALSE;
1e2f5b6e
AM		 3871 else if (s != sec)
3872 opd_sym_map[rel->r_offset / 24] = s;
3873 }
e86ce104
AM		 3874 /* Fall through. */
3875
04c9666a 3876 case R_PPC64_REL30:
5bd4f169 3877 case R_PPC64_REL32:
04c9666a 3878 case R_PPC64_REL64:
65f38f15
AM		 3879 case R_PPC64_ADDR14:
3880 case R_PPC64_ADDR14_BRNTAKEN:
3881 case R_PPC64_ADDR14_BRTAKEN:
3882 case R_PPC64_ADDR16:
3883 case R_PPC64_ADDR16_DS:
3884 case R_PPC64_ADDR16_HA:
3885 case R_PPC64_ADDR16_HI:
3886 case R_PPC64_ADDR16_HIGHER:
3887 case R_PPC64_ADDR16_HIGHERA:
3888 case R_PPC64_ADDR16_HIGHEST:
3889 case R_PPC64_ADDR16_HIGHESTA:
3890 case R_PPC64_ADDR16_LO:
3891 case R_PPC64_ADDR16_LO_DS:
3892 case R_PPC64_ADDR24:
65f38f15 3893 case R_PPC64_ADDR32:
65f38f15
AM		 3894 case R_PPC64_UADDR16:
3895 case R_PPC64_UADDR32:
3896 case R_PPC64_UADDR64:
5bd4f169 3897 case R_PPC64_TOC:
81848ca0
AM		 3898 if (h != NULL && !info->shared)
3899 /* We may need a copy reloc. */
3900 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
3901
41bd81ab 3902 /* Don't propagate .opd relocs. */
1e2f5b6e 3903 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 3904 break;
e86ce104 3905
f4656909
AM		 3906 /* Don't propagate relocs that the dynamic linker won't relocate. */
3907 if ((sec->flags & SEC_ALLOC) == 0)
3908 break;
3909
65f38f15
AM		 3910 /* If we are creating a shared library, and this is a reloc
3911 against a global symbol, or a non PC relative reloc
3912 against a local symbol, then we need to copy the reloc
3913 into the shared library. However, if we are linking with
3914 -Bsymbolic, we do not need to copy a reloc against a
3915 global symbol which is defined in an object we are
3916 including in the link (i.e., DEF_REGULAR is set). At
3917 this point we have not seen all the input files, so it is
3918 possible that DEF_REGULAR is not set now but will be set
3919 later (it is never cleared). In case of a weak definition,
3920 DEF_REGULAR may be cleared later by a strong definition in
3921 a shared library. We account for that possibility below by
f4656909 3922 storing information in the dyn_relocs field of the hash
65f38f15
AM		 3923 table entry. A similar situation occurs when creating
3924 shared libraries and symbol visibility changes render the
3925 symbol local.
3926
3927 If on the other hand, we are creating an executable, we
3928 may need to keep relocations for symbols satisfied by a
3929 dynamic library if we manage to avoid copy relocs for the
3930 symbol. */
411e1bfb 3931 dodyn:
65f38f15 3932 if ((info->shared
411e1bfb 3933 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM		 3934 || (h != NULL
3935 && (! info->symbolic
3936 || h->root.type == bfd_link_hash_defweak
3937 || (h->elf_link_hash_flags
3938 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
f4656909
AM		 3939 || (ELIMINATE_COPY_RELOCS
3940 && !info->shared
65f38f15
AM		 3941 && h != NULL
3942 && (h->root.type == bfd_link_hash_defweak
3943 || (h->elf_link_hash_flags
3944 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
5bd4f169 3945 {
ec338859
AM		 3946 struct ppc_dyn_relocs *p;
3947 struct ppc_dyn_relocs **head;
3948
65f38f15
AM		 3949 /* We must copy these reloc types into the output file.
3950 Create a reloc section in dynobj and make room for
3951 this reloc. */
5bd4f169
AM		 3952 if (sreloc == NULL)
3953 {
3954 const char *name;
65f38f15 3955 bfd *dynobj;
5bd4f169
AM		 3956
3957 name = (bfd_elf_string_from_elf_section
3958 (abfd,
3959 elf_elfheader (abfd)->e_shstrndx,
3960 elf_section_data (sec)->rel_hdr.sh_name));
3961 if (name == NULL)
b34976b6 3962 return FALSE;
5bd4f169 3963
65f38f15
AM		 3964 if (strncmp (name, ".rela", 5) != 0
3965 || strcmp (bfd_get_section_name (abfd, sec),
3966 name + 5) != 0)
3967 {
3968 (*_bfd_error_handler)
3969 (_("%s: bad relocation section name `%s\'"),
3970 bfd_archive_filename (abfd), name);
5d1634d7 3971 bfd_set_error (bfd_error_bad_value);
65f38f15
AM		 3972 }
3973
65f38f15 3974 dynobj = htab->elf.dynobj;
5bd4f169
AM		 3975 sreloc = bfd_get_section_by_name (dynobj, name);
3976 if (sreloc == NULL)
3977 {
3978 flagword flags;
3979
3980 sreloc = bfd_make_section (dynobj, name);
3981 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3982 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3983 if ((sec->flags & SEC_ALLOC) != 0)
3984 flags |= SEC_ALLOC | SEC_LOAD;
3985 if (sreloc == NULL
3986 || ! bfd_set_section_flags (dynobj, sreloc, flags)
65f38f15 3987 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 3988 return FALSE;
5bd4f169 3989 }
65f38f15 3990 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM		 3991 }
3992
65f38f15
AM		 3993 /* If this is a global symbol, we count the number of
3994 relocations we need for this symbol. */
3995 if (h != NULL)
3996 {
ec338859 3997 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM		 3998 }
3999 else
4000 {
ec338859
AM		 4001 /* Track dynamic relocs needed for local syms too.
4002 We really need local syms available to do this
4003 easily. Oh well. */
4004
4005 asection *s;
4006 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4007 sec, r_symndx);
4008 if (s == NULL)
b34976b6 4009 return FALSE;
ec338859
AM		 4010
4011 head = ((struct ppc_dyn_relocs **)
4012 &elf_section_data (s)->local_dynrel);
65f38f15 4013 }
ec338859
AM		 4014
4015 p = *head;
4016 if (p == NULL || p->sec != sec)
4017 {
4ce794b7 4018 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4019 if (p == NULL)
b34976b6 4020 return FALSE;
ec338859
AM		 4021 p->next = *head;
4022 *head = p;
4023 p->sec = sec;
4024 p->count = 0;
4025 p->pc_count = 0;
4026 }
4027
4028 p->count += 1;
411e1bfb 4029 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4030 p->pc_count += 1;
65f38f15 4031 }
5bd4f169 4032 break;
65f38f15
AM		 4033
4034 default:
96e0dda4 4035 break;
5bd4f169
AM		 4036 }
4037 }
4038
b34976b6 4039 return TRUE;
5bd4f169
AM		 4040}
4041
4042/* Return the section that should be marked against GC for a given
4043 relocation. */
4044
4045static asection *
4ce794b7
AM		 4046ppc64_elf_gc_mark_hook (asection *sec,
4047 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4048 Elf_Internal_Rela *rel,
4049 struct elf_link_hash_entry *h,
4050 Elf_Internal_Sym *sym)
5bd4f169 4051{
1e2f5b6e
AM		 4052 asection *rsec = NULL;
4053
5bd4f169
AM		 4054 if (h != NULL)
4055 {
04c9666a 4056 enum elf_ppc64_reloc_type r_type;
1e2f5b6e 4057 struct ppc_link_hash_entry *fdh;
a33d1f77 4058
4ce794b7 4059 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4060 switch (r_type)
5bd4f169
AM		 4061 {
4062 case R_PPC64_GNU_VTINHERIT:
4063 case R_PPC64_GNU_VTENTRY:
4064 break;
4065
4066 default:
4067 switch (h->root.type)
4068 {
4069 case bfd_link_hash_defined:
4070 case bfd_link_hash_defweak:
1e2f5b6e
AM		 4071 fdh = (struct ppc_link_hash_entry *) h;
4072
4073 /* Function descriptor syms cause the associated
4074 function code sym section to be marked. */
4075 if (fdh->is_func_descriptor)
4076 rsec = fdh->oh->root.u.def.section;
4077
4078 /* Function entry syms return NULL if they are in .opd
4079 and are not ._start (or others undefined on the ld
4080 command line). Thus we avoid marking all function
b34976b6 4081 sections, as all functions are referenced in .opd. */
1e2f5b6e
AM		 4082 else if ((fdh->oh != NULL
4083 && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry)
f0abc2a1 4084 || ppc64_elf_section_data (sec)->opd.func_sec == NULL)
1e2f5b6e
AM		 4085 rsec = h->root.u.def.section;
4086 break;
5bd4f169
AM		 4087
4088 case bfd_link_hash_common:
1e2f5b6e
AM		 4089 rsec = h->root.u.c.p->section;
4090 break;
5bd4f169
AM		 4091
4092 default:
4093 break;
4094 }
4095 }
4096 }
4097 else
4098 {
1e2f5b6e
AM		 4099 asection **opd_sym_section;
4100
4101 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
f0abc2a1 4102 opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec;
1e2f5b6e
AM		 4103 if (opd_sym_section != NULL)
4104 rsec = opd_sym_section[sym->st_value / 24];
f0abc2a1 4105 else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL)
1e2f5b6e 4106 rsec = NULL;
5bd4f169
AM		 4107 }
4108
1e2f5b6e 4109 return rsec;
5bd4f169
AM		 4110}
4111
65f38f15
AM		 4112/* Update the .got, .plt. and dynamic reloc reference counts for the
4113 section being removed. */
5bd4f169 4114
b34976b6 4115static bfd_boolean
4ce794b7
AM		 4116ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
4117 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4118{
411e1bfb 4119 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4120 Elf_Internal_Shdr *symtab_hdr;
4121 struct elf_link_hash_entry **sym_hashes;
411e1bfb 4122 struct got_entry **local_got_ents;
5bd4f169 4123 const Elf_Internal_Rela *rel, *relend;
5bd4f169 4124
ec338859
AM		 4125 elf_section_data (sec)->local_dynrel = NULL;
4126
411e1bfb 4127 htab = ppc_hash_table (info);
5bd4f169
AM		 4128 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4129 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 4130 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 4131
4132 relend = relocs + sec->reloc_count;
4133 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 4134 {
4135 unsigned long r_symndx;
04c9666a 4136 enum elf_ppc64_reloc_type r_type;
58ac9f71 4137 struct elf_link_hash_entry *h = NULL;
411e1bfb 4138 char tls_type = 0;
5bd4f169 4139
a33d1f77 4140 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 4141 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 4142 if (r_symndx >= symtab_hdr->sh_info)
4143 {
4144 struct ppc_link_hash_entry *eh;
4145 struct ppc_dyn_relocs **pp;
4146 struct ppc_dyn_relocs *p;
4147
4148 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4149 eh = (struct ppc_link_hash_entry *) h;
4150
4151 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4152 if (p->sec == sec)
4153 {
4154 /* Everything must go for SEC. */
4155 *pp = p->next;
4156 break;
4157 }
4158 }
4159
a33d1f77
AM		 4160 switch (r_type)
4161 {
411e1bfb
AM		 4162 case R_PPC64_GOT_TLSLD16:
4163 case R_PPC64_GOT_TLSLD16_LO:
4164 case R_PPC64_GOT_TLSLD16_HI:
4165 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4166 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 4167 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4168 goto dogot;
4169
4170 case R_PPC64_GOT_TLSGD16:
4171 case R_PPC64_GOT_TLSGD16_LO:
4172 case R_PPC64_GOT_TLSGD16_HI:
4173 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4174 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4175 goto dogot;
4176
4177 case R_PPC64_GOT_TPREL16_DS:
4178 case R_PPC64_GOT_TPREL16_LO_DS:
4179 case R_PPC64_GOT_TPREL16_HI:
4180 case R_PPC64_GOT_TPREL16_HA:
4181 tls_type = TLS_TLS | TLS_TPREL;
4182 goto dogot;
4183
4184 case R_PPC64_GOT_DTPREL16_DS:
4185 case R_PPC64_GOT_DTPREL16_LO_DS:
4186 case R_PPC64_GOT_DTPREL16_HI:
4187 case R_PPC64_GOT_DTPREL16_HA:
4188 tls_type = TLS_TLS | TLS_DTPREL;
4189 goto dogot;
4190
a33d1f77
AM		 4191 case R_PPC64_GOT16:
4192 case R_PPC64_GOT16_DS:
4193 case R_PPC64_GOT16_HA:
4194 case R_PPC64_GOT16_HI:
4195 case R_PPC64_GOT16_LO:
4196 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 4197 dogot:
4198 {
4199 struct got_entry *ent;
4200
58ac9f71
AM		 4201 if (h != NULL)
4202 ent = h->got.glist;
411e1bfb
AM		 4203 else
4204 ent = local_got_ents[r_symndx];
4205
4206 for (; ent != NULL; ent = ent->next)
4207 if (ent->addend == rel->r_addend
e717da7e 4208 && ent->owner == abfd
411e1bfb
AM		 4209 && ent->tls_type == tls_type)
4210 break;
4211 if (ent == NULL)
4212 abort ();
4213 if (ent->got.refcount > 0)
4214 ent->got.refcount -= 1;
4215 }
a33d1f77 4216 break;
65f38f15 4217
a33d1f77
AM		 4218 case R_PPC64_PLT16_HA:
4219 case R_PPC64_PLT16_HI:
4220 case R_PPC64_PLT16_LO:
4221 case R_PPC64_PLT32:
4222 case R_PPC64_PLT64:
721956f4
AM		 4223 case R_PPC64_REL14:
4224 case R_PPC64_REL14_BRNTAKEN:
4225 case R_PPC64_REL14_BRTAKEN:
5d1634d7 4226 case R_PPC64_REL24:
58ac9f71 4227 if (h != NULL)
5d1634d7 4228 {
411e1bfb
AM		 4229 struct plt_entry *ent;
4230
411e1bfb
AM		 4231 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4232 if (ent->addend == rel->r_addend)
4233 break;
4234 if (ent == NULL)
4235 abort ();
4236 if (ent->plt.refcount > 0)
4237 ent->plt.refcount -= 1;
5d1634d7 4238 }
e86ce104 4239 break;
5d1634d7 4240
a33d1f77
AM		 4241 default:
4242 break;
4243 }
4244 }
b34976b6 4245 return TRUE;
5bd4f169
AM		 4246}
4247
e86ce104
AM		 4248/* Called via elf_link_hash_traverse to transfer dynamic linking
4249 information on function code symbol entries to their corresponding
4250 function descriptor symbol entries. */
b34976b6 4251static bfd_boolean
4ce794b7 4252func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 4253{
e86ce104 4254 struct bfd_link_info *info;
65f38f15 4255 struct ppc_link_hash_table *htab;
411e1bfb 4256 struct plt_entry *ent;
50bc7936
AM		 4257 struct ppc_link_hash_entry *fh;
4258 struct ppc_link_hash_entry *fdh;
4259 bfd_boolean force_local;
5bd4f169 4260
50bc7936
AM		 4261 fh = (struct ppc_link_hash_entry *) h;
4262 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 4263 return TRUE;
e86ce104 4264
50bc7936
AM		 4265 if (fh->elf.root.type == bfd_link_hash_warning)
4266 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 4267
4ce794b7 4268 info = inf;
65f38f15 4269 htab = ppc_hash_table (info);
5bd4f169 4270
e86ce104
AM		 4271 /* If this is a function code symbol, transfer dynamic linking
4272 information to the function descriptor symbol. */
50bc7936 4273 if (!fh->is_func)
b34976b6 4274 return TRUE;
e86ce104 4275
50bc7936
AM		 4276 if (fh->elf.root.type == bfd_link_hash_undefweak
4277 && (fh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR))
b34976b6 4278 htab->have_undefweak = TRUE;
805fc799 4279
50bc7936 4280 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM		 4281 if (ent->plt.refcount > 0)
4282 break;
50bc7936
AM		 4283 if (ent == NULL
4284 || fh->elf.root.root.string[0] != '.'
4285 || fh->elf.root.root.string[1] == '\0')
4286 return TRUE;
5bd4f169 4287
50bc7936
AM		 4288 /* Find the corresponding function descriptor symbol. Create it
4289 as undefined if necessary. */
5bd4f169 4290
50bc7936
AM		 4291 fdh = get_fdh (fh, htab);
4292 if (fdh != NULL)
4293 while (fdh->elf.root.type == bfd_link_hash_indirect
4294 || fdh->elf.root.type == bfd_link_hash_warning)
4295 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 4296
50bc7936
AM		 4297 if (fdh == NULL
4298 && info->shared
4299 && (fh->elf.root.type == bfd_link_hash_undefined
4300 || fh->elf.root.type == bfd_link_hash_undefweak))
4301 {
4302 bfd *abfd;
4303 asymbol *newsym;
4304 struct bfd_link_hash_entry *bh;
4305
4306 abfd = fh->elf.root.u.undef.abfd;
4307 newsym = bfd_make_empty_symbol (abfd);
4308 newsym->name = fh->elf.root.root.string + 1;
4309 newsym->section = bfd_und_section_ptr;
4310 newsym->value = 0;
4311 newsym->flags = BSF_OBJECT;
4312 if (fh->elf.root.type == bfd_link_hash_undefweak)
4313 newsym->flags |= BSF_WEAK;
4314
4315 bh = &fdh->elf.root;
4316 if ( !(_bfd_generic_link_add_one_symbol
4317 (info, abfd, newsym->name, newsym->flags,
4318 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
648cca2c 4319 {
50bc7936 4320 return FALSE;
648cca2c 4321 }
50bc7936
AM		 4322 fdh = (struct ppc_link_hash_entry *) bh;
4323 fdh->elf.elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
4324 fdh->elf.size = 24;
4325 fdh->elf.type = STT_OBJECT;
4326 }
648cca2c 4327
50bc7936
AM		 4328 if (fdh != NULL
4329 && (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
4330 && (info->shared
4331 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4332 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
4333 || (fdh->elf.root.type == bfd_link_hash_undefweak
4334 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
4335 {
4336 if (fdh->elf.dynindx == -1)
4337 if (! bfd_elf64_link_record_dynamic_symbol (info, &fdh->elf))
4338 return FALSE;
4339 fdh->elf.elf_link_hash_flags
4340 |= (fh->elf.elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
4341 | ELF_LINK_HASH_REF_DYNAMIC
4342 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4343 | ELF_LINK_NON_GOT_REF));
4344 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 4345 {
50bc7936
AM		 4346 fdh->elf.plt.plist = fh->elf.plt.plist;
4347 fdh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
e86ce104 4348 }
50bc7936
AM		 4349 fdh->is_func_descriptor = 1;
4350 fdh->oh = &fh->elf;
4351 fh->oh = &fdh->elf;
e86ce104
AM		 4352 }
4353
50bc7936
AM		 4354 /* Now that the info is on the function descriptor, clear the
4355 function code sym info. Any function code syms for which we
4356 don't have a definition in a regular file, we force local.
4357 This prevents a shared library from exporting syms that have
4358 been imported from another library. Function code syms that
4359 are really in the library we must leave global to prevent the
4360 linker dragging in a definition from a static library. */
4361 force_local
4362 = (info->shared
4363 && ((fh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4364 || fdh == NULL
4365 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4366 || (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0));
4367 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
4368
b34976b6 4369 return TRUE;
e86ce104 4370}
40b8271b 4371
82bd7b59
AM		 4372#define MIN_SAVE_FPR 14
4373#define MAX_SAVE_FPR 31
4374
e86ce104 4375/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 4376 this hook to a) provide some gcc support functions, and b) transfer
4377 dynamic linking information gathered so far on function code symbol
4378 entries, to their corresponding function descriptor symbol entries. */
b34976b6 4379static bfd_boolean
4ce794b7
AM		 4380ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
4381 struct bfd_link_info *info)
e86ce104
AM		 4382{
4383 struct ppc_link_hash_table *htab;
82bd7b59
AM		 4384 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
4385 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
4386 unsigned int i;
4387 struct elf_link_hash_entry *h;
721956f4 4388 bfd_byte *p;
82bd7b59 4389 char sym[10];
e86ce104
AM		 4390
4391 htab = ppc_hash_table (info);
82bd7b59
AM		 4392
4393 if (htab->sfpr == NULL)
4394 /* We don't have any relocs. */
b34976b6 4395 return TRUE;
82bd7b59
AM		 4396
4397 /* First provide any missing ._savef* and ._restf* functions. */
4398 memcpy (sym, "._savef14", 10);
4399 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4400 {
4401 sym[7] = i / 10 + '0';
4402 sym[8] = i % 10 + '0';
b34976b6 4403 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4404 if (h != NULL
772119ce 4405 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 4406 {
4407 if (lowest_savef > i)
4408 lowest_savef = i;
4409 h->root.type = bfd_link_hash_defined;
4410 h->root.u.def.section = htab->sfpr;
4411 h->root.u.def.value = (i - lowest_savef) * 4;
4412 h->type = STT_FUNC;
4413 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4414 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 4415 }
4416 }
4417
4418 memcpy (sym, "._restf14", 10);
4419 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4420 {
4421 sym[7] = i / 10 + '0';
4422 sym[8] = i % 10 + '0';
b34976b6 4423 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4424 if (h != NULL
772119ce 4425 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 4426 {
4427 if (lowest_restf > i)
4428 lowest_restf = i;
4429 h->root.type = bfd_link_hash_defined;
4430 h->root.u.def.section = htab->sfpr;
4431 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4432 + (i - lowest_restf) * 4);
4433 h->type = STT_FUNC;
4434 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4435 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 4436 }
4437 }
4438
4ce794b7 4439 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 4440
82bd7b59
AM		 4441 htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4442 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
4443
4444 if (htab->sfpr->_raw_size == 0)
805fc799
AM		 4445 {
4446 if (!htab->have_undefweak)
4447 {
4448 _bfd_strip_section_from_output (info, htab->sfpr);
b34976b6 4449 return TRUE;
805fc799
AM		 4450 }
4451
4452 htab->sfpr->_raw_size = 4;
4453 }
82bd7b59 4454
4ce794b7 4455 p = bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size);
721956f4 4456 if (p == NULL)
b34976b6 4457 return FALSE;
721956f4
AM		 4458 htab->sfpr->contents = p;
4459
4460 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
4461 {
4462 unsigned int fpr = i << 21;
4463 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4464 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
4465 p += 4;
4466 }
4467 if (lowest_savef <= MAX_SAVE_FPR)
4468 {
82bd7b59
AM		 4469 bfd_put_32 (htab->elf.dynobj, BLR, p);
4470 p += 4;
721956f4 4471 }
82bd7b59 4472
721956f4
AM		 4473 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
4474 {
4475 unsigned int fpr = i << 21;
4476 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4477 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
82bd7b59
AM		 4478 p += 4;
4479 }
721956f4
AM		 4480 if (lowest_restf <= MAX_SAVE_FPR
4481 || htab->sfpr->_raw_size == 4)
4482 {
4483 bfd_put_32 (htab->elf.dynobj, BLR, p);
4484 }
82bd7b59 4485
b34976b6 4486 return TRUE;
e86ce104
AM		 4487}
4488
4489/* Adjust a symbol defined by a dynamic object and referenced by a
4490 regular object. The current definition is in some section of the
4491 dynamic object, but we're not including those sections. We have to
4492 change the definition to something the rest of the link can
4493 understand. */
4494
b34976b6 4495static bfd_boolean
4ce794b7
AM		 4496ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4497 struct elf_link_hash_entry *h)
e86ce104
AM		 4498{
4499 struct ppc_link_hash_table *htab;
e86ce104
AM		 4500 asection *s;
4501 unsigned int power_of_two;
4502
4503 htab = ppc_hash_table (info);
4504
4505 /* Deal with function syms. */
4506 if (h->type == STT_FUNC
4507 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4508 {
4509 /* Clear procedure linkage table information for any symbol that
4510 won't need a .plt entry. */
411e1bfb
AM		 4511 struct plt_entry *ent;
4512 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4513 if (ent->plt.refcount > 0)
4514 break;
e86ce104 4515 if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor
411e1bfb 4516 || ent == NULL
9c7a29a3
AM		 4517 || SYMBOL_CALLS_LOCAL (info, h)
4518 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4519 && h->root.type == bfd_link_hash_undefweak))
40b8271b 4520 {
411e1bfb 4521 h->plt.plist = NULL;
40b8271b 4522 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
40b8271b 4523 }
5bd4f169 4524 }
bbd7ec4a 4525 else
411e1bfb 4526 h->plt.plist = NULL;
5bd4f169
AM		 4527
4528 /* If this is a weak symbol, and there is a real definition, the
4529 processor independent code will have arranged for us to see the
4530 real definition first, and we can just use the same value. */
4531 if (h->weakdef != NULL)
4532 {
4533 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
4534 || h->weakdef->root.type == bfd_link_hash_defweak);
4535 h->root.u.def.section = h->weakdef->root.u.def.section;
4536 h->root.u.def.value = h->weakdef->root.u.def.value;
a23b6845
AM		 4537 if (ELIMINATE_COPY_RELOCS)
4538 h->elf_link_hash_flags
4539 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
4540 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
b34976b6 4541 return TRUE;
5bd4f169
AM		 4542 }
4543
5bd4f169
AM		 4544 /* If we are creating a shared library, we must presume that the
4545 only references to the symbol are via the global offset table.
4546 For such cases we need not do anything here; the relocations will
4547 be handled correctly by relocate_section. */
4548 if (info->shared)
b34976b6 4549 return TRUE;
5bd4f169 4550
65f38f15
AM		 4551 /* If there are no references to this symbol that do not use the
4552 GOT, we don't need to generate a copy reloc. */
4553 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
b34976b6 4554 return TRUE;
65f38f15 4555
f4656909 4556 if (ELIMINATE_COPY_RELOCS)
65f38f15 4557 {
f4656909
AM		 4558 struct ppc_link_hash_entry * eh;
4559 struct ppc_dyn_relocs *p;
65f38f15 4560
f4656909
AM		 4561 eh = (struct ppc_link_hash_entry *) h;
4562 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4563 {
4564 s = p->sec->output_section;
4565 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4566 break;
4567 }
4568
4569 /* If we didn't find any dynamic relocs in read-only sections, then
4570 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4571 if (p == NULL)
4572 {
4573 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
4574 return TRUE;
4575 }
65f38f15
AM		 4576 }
4577
5d35169e 4578 if (h->plt.plist != NULL)
97b639ba
AM		 4579 {
4580 /* We should never get here, but unfortunately there are versions
4581 of gcc out there that improperly (for this ABI) put initialized
4582 function pointers, vtable refs and suchlike in read-only
4583 sections. Allow them to proceed, but warn that this might
4584 break at runtime. */
4585 (*_bfd_error_handler)
4586 (_("copy reloc against `%s' requires lazy plt linking; "
4587 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
4588 h->root.root.string);
4589 }
5d35169e
AM		 4590
4591 /* This is a reference to a symbol defined by a dynamic object which
4592 is not a function. */
4593
5bd4f169
AM		 4594 /* We must allocate the symbol in our .dynbss section, which will
4595 become part of the .bss section of the executable. There will be
4596 an entry for this symbol in the .dynsym section. The dynamic
4597 object will contain position independent code, so all references
4598 from the dynamic object to this symbol will go through the global
4599 offset table. The dynamic linker will use the .dynsym entry to
4600 determine the address it must put in the global offset table, so
4601 both the dynamic object and the regular object will refer to the
4602 same memory location for the variable. */
5bd4f169 4603
04c9666a
AM		 4604 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4605 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 4606 runtime process image. We need to remember the offset into the
4607 .rela.bss section we are going to use. */
4608 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4609 {
4ce794b7 4610 htab->relbss->_raw_size += sizeof (Elf64_External_Rela);
5bd4f169
AM		 4611 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
4612 }
4613
4614 /* We need to figure out the alignment required for this symbol. I
4615 have no idea how ELF linkers handle this. */
4616 power_of_two = bfd_log2 (h->size);
4617 if (power_of_two > 4)
4618 power_of_two = 4;
4619
4620 /* Apply the required alignment. */
4ce794b7 4621 s = htab->dynbss;
65f38f15
AM		 4622 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
4623 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 4624 {
65f38f15 4625 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 4626 return FALSE;
5bd4f169
AM		 4627 }
4628
4629 /* Define the symbol as being at this point in the section. */
4630 h->root.u.def.section = s;
4631 h->root.u.def.value = s->_raw_size;
4632
4633 /* Increment the section size to make room for the symbol. */
4634 s->_raw_size += h->size;
4635
b34976b6 4636 return TRUE;
5bd4f169
AM		 4637}
4638
e86ce104
AM		 4639/* If given a function descriptor symbol, hide both the function code
4640 sym and the descriptor. */
4641static void
4ce794b7
AM		 4642ppc64_elf_hide_symbol (struct bfd_link_info *info,
4643 struct elf_link_hash_entry *h,
4644 bfd_boolean force_local)
e86ce104
AM		 4645{
4646 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4647
4648 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
4649 {
721956f4 4650 struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh;
e86ce104 4651
721956f4 4652 if (fh == NULL)
d1329ca3
AM		 4653 {
4654 const char *p, *q;
4655 struct ppc_link_hash_table *htab;
4656 char save;
4657
4658 /* We aren't supposed to use alloca in BFD because on
4659 systems which do not have alloca the version in libiberty
4660 calls xmalloc, which might cause the program to crash
4661 when it runs out of memory. This function doesn't have a
4662 return status, so there's no way to gracefully return an
4663 error. So cheat. We know that string[-1] can be safely
4664 dereferenced; It's either a string in an ELF string
4665 table, or allocated in an objalloc structure. */
4666
4667 p = h->root.root.string - 1;
4668 save = *p;
4669 *(char *) p = '.';
4670 htab = ppc_hash_table (info);
b34976b6 4671 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 4672 *(char *) p = save;
4673
4674 /* Unfortunately, if it so happens that the string we were
4675 looking for was allocated immediately before this string,
4676 then we overwrote the string terminator. That's the only
4677 reason the lookup should fail. */
4678 if (fh == NULL)
4679 {
4680 q = h->root.root.string + strlen (h->root.root.string);
4681 while (q >= h->root.root.string && *q == *p)
4682 --q, --p;
4683 if (q < h->root.root.string && *p == '.')
b34976b6 4684 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 4685 }
4686 if (fh != NULL)
4687 {
4688 ((struct ppc_link_hash_entry *) h)->oh = fh;
4689 ((struct ppc_link_hash_entry *) fh)->oh = h;
4690 }
4691 }
e86ce104
AM		 4692 if (fh != NULL)
4693 _bfd_elf_link_hash_hide_symbol (info, fh, force_local);
4694 }
4695}
4696
411e1bfb 4697static bfd_boolean
4ce794b7
AM		 4698get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp,
4699 asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp,
4700 unsigned long r_symndx, bfd *ibfd)
411e1bfb
AM		 4701{
4702 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4703
4704 if (r_symndx >= symtab_hdr->sh_info)
4705 {
4706 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4707 struct elf_link_hash_entry *h;
4708
4709 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4710 while (h->root.type == bfd_link_hash_indirect
4711 || h->root.type == bfd_link_hash_warning)
4712 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4713
4714 if (hp != NULL)
4715 *hp = h;
4716
4717 if (symp != NULL)
4718 *symp = NULL;
4719
4720 if (symsecp != NULL)
4721 {
4722 asection *symsec = NULL;
4723 if (h->root.type == bfd_link_hash_defined
4724 || h->root.type == bfd_link_hash_defweak)
4725 symsec = h->root.u.def.section;
4726 *symsecp = symsec;
4727 }
4728
e7b938ca 4729 if (tls_maskp != NULL)
411e1bfb
AM		 4730 {
4731 struct ppc_link_hash_entry *eh;
4732
4733 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4734 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 4735 }
4736 }
4737 else
4738 {
4739 Elf_Internal_Sym *sym;
4740 Elf_Internal_Sym *locsyms = *locsymsp;
4741
4742 if (locsyms == NULL)
4743 {
4744 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4745 if (locsyms == NULL)
4746 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4747 symtab_hdr->sh_info,
4748 0, NULL, NULL, NULL);
4749 if (locsyms == NULL)
4750 return FALSE;
4751 *locsymsp = locsyms;
4752 }
4753 sym = locsyms + r_symndx;
4754
4755 if (hp != NULL)
4756 *hp = NULL;
4757
4758 if (symp != NULL)
4759 *symp = sym;
4760
4761 if (symsecp != NULL)
4762 {
4763 asection *symsec = NULL;
4764 if ((sym->st_shndx != SHN_UNDEF
4765 && sym->st_shndx < SHN_LORESERVE)
4766 || sym->st_shndx > SHN_HIRESERVE)
4767 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
4768 *symsecp = symsec;
4769 }
4770
e7b938ca 4771 if (tls_maskp != NULL)
411e1bfb
AM		 4772 {
4773 struct got_entry **lgot_ents;
e7b938ca 4774 char *tls_mask;
411e1bfb 4775
e7b938ca 4776 tls_mask = NULL;
411e1bfb
AM		 4777 lgot_ents = elf_local_got_ents (ibfd);
4778 if (lgot_ents != NULL)
4779 {
e7b938ca
AM		 4780 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
4781 tls_mask = &lgot_masks[r_symndx];
411e1bfb 4782 }
e7b938ca 4783 *tls_maskp = tls_mask;
411e1bfb
AM		 4784 }
4785 }
4786 return TRUE;
4787}
4788
e7b938ca 4789/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 4790 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 4791 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 4792
4793static int
4ce794b7
AM		 4794get_tls_mask (char **tls_maskp, Elf_Internal_Sym **locsymsp,
4795 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 4796{
4797 unsigned long r_symndx;
951fd09b 4798 unsigned int next_r;
411e1bfb
AM		 4799 struct elf_link_hash_entry *h;
4800 Elf_Internal_Sym *sym;
4801 asection *sec;
4802 bfd_vma off;
4803
4804 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 4805 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 4806 return 0;
411e1bfb 4807
e7b938ca 4808 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM		 4809 || sec == NULL
4810 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 4811 return 1;
411e1bfb
AM		 4812
4813 /* Look inside a TOC section too. */
4814 if (h != NULL)
4815 {
4816 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4817 off = h->root.u.def.value;
4818 }
4819 else
4820 off = sym->st_value;
4821 off += rel->r_addend;
4822 BFD_ASSERT (off % 8 == 0);
4823 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 4824 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 4825 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b
AM		 4826 return 0;
4827 if (h == NULL
4828 || h->root.type == bfd_link_hash_defined
4829 || h->root.type == bfd_link_hash_defweak)
4830 {
4831 if (next_r == (unsigned) -1)
4832 return 2;
4833 if (next_r == (unsigned) -2
4834 && (h == NULL
4835 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
4836 return 3;
4837 }
4838 return 1;
411e1bfb
AM		 4839}
4840
b34976b6 4841bfd_boolean
4ce794b7 4842ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info)
1e2f5b6e
AM		 4843{
4844 bfd *ibfd;
1e2f5b6e 4845
411e1bfb 4846 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 4847 {
4848 asection *sec;
4849 Elf_Internal_Rela *relstart, *rel, *relend;
4850 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 4851 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 4852 struct elf_link_hash_entry **sym_hashes;
4853 bfd_vma offset;
d6fe2dc1 4854 bfd_size_type amt;
1e2f5b6e 4855 long *adjust;
b34976b6 4856 bfd_boolean need_edit;
1e2f5b6e
AM		 4857
4858 sec = bfd_get_section_by_name (ibfd, ".opd");
4859 if (sec == NULL)
4860 continue;
4861
d6fe2dc1 4862 amt = sec->_raw_size * sizeof (long) / 24;
f0abc2a1 4863 adjust = ppc64_elf_section_data (sec)->opd.adjust;
d6fe2dc1
AM		 4864 if (adjust == NULL)
4865 {
4866 /* Must be a ld -r link. ie. check_relocs hasn't been
4867 called. */
4ce794b7 4868 adjust = bfd_zalloc (obfd, amt);
f0abc2a1 4869 ppc64_elf_section_data (sec)->opd.adjust = adjust;
d6fe2dc1 4870 }
4ce794b7 4871 memset (adjust, 0, amt);
1e2f5b6e
AM		 4872
4873 if (sec->output_section == bfd_abs_section_ptr)
4874 continue;
4875
4876 /* Look through the section relocs. */
4877 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
4878 continue;
4879
6cdc0ccc 4880 local_syms = NULL;
1e2f5b6e
AM		 4881 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4882 sym_hashes = elf_sym_hashes (ibfd);
4883
4884 /* Read the relocations. */
4ce794b7 4885 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 4886 info->keep_memory);
1e2f5b6e 4887 if (relstart == NULL)
b34976b6 4888 return FALSE;
1e2f5b6e
AM		 4889
4890 /* First run through the relocs to check they are sane, and to
4891 determine whether we need to edit this opd section. */
b34976b6 4892 need_edit = FALSE;
1e2f5b6e
AM		 4893 offset = 0;
4894 relend = relstart + sec->reloc_count;
50bc7936 4895 for (rel = relstart; rel < relend; )
1e2f5b6e 4896 {
04c9666a 4897 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 4898 unsigned long r_symndx;
4899 asection *sym_sec;
4900 struct elf_link_hash_entry *h;
4901 Elf_Internal_Sym *sym;
4902
4903 /* .opd contains a regular array of 24 byte entries. We're
4904 only interested in the reloc pointing to a function entry
4905 point. */
50bc7936
AM		 4906 if (rel->r_offset != offset
4907 || rel + 1 >= relend
4908 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM		 4909 {
4910 /* If someone messes with .opd alignment then after a
4911 "ld -r" we might have padding in the middle of .opd.
4912 Also, there's nothing to prevent someone putting
4913 something silly in .opd with the assembler. No .opd
b34976b6 4914 optimization for them! */
1e2f5b6e
AM		 4915 (*_bfd_error_handler)
4916 (_("%s: .opd is not a regular array of opd entries"),
4917 bfd_archive_filename (ibfd));
b34976b6 4918 need_edit = FALSE;
1e2f5b6e
AM		 4919 break;
4920 }
4921
50bc7936
AM		 4922 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
4923 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
4924 {
4925 (*_bfd_error_handler)
4926 (_("%s: unexpected reloc type %u in .opd section"),
4927 bfd_archive_filename (ibfd), r_type);
4928 need_edit = FALSE;
4929 break;
4930 }
4931
1e2f5b6e 4932 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 4933 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
4934 r_symndx, ibfd))
50bc7936 4935 goto error_ret;
1e2f5b6e
AM		 4936
4937 if (sym_sec == NULL || sym_sec->owner == NULL)
4938 {
411e1bfb
AM		 4939 const char *sym_name;
4940 if (h != NULL)
4941 sym_name = h->root.root.string;
4942 else
4943 sym_name = bfd_elf_local_sym_name (ibfd, sym);
4944
1e2f5b6e
AM		 4945 (*_bfd_error_handler)
4946 (_("%s: undefined sym `%s' in .opd section"),
4947 bfd_archive_filename (ibfd),
411e1bfb 4948 sym_name);
b34976b6 4949 need_edit = FALSE;
1e2f5b6e
AM		 4950 break;
4951 }
4952
51020317
AM		 4953 /* opd entries are always for functions defined in the
4954 current input bfd. If the symbol isn't defined in the
4955 input bfd, then we won't be using the function in this
4956 bfd; It must be defined in a linkonce section in another
4957 bfd, or is weak. It's also possible that we are
4958 discarding the function due to a linker script /DISCARD/,
4959 which we test for via the output_section. */
4960 if (sym_sec->owner != ibfd
4961 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 4962 need_edit = TRUE;
1e2f5b6e
AM		 4963
4964 offset += 24;
50bc7936
AM		 4965 rel += 2;
4966 /* Allow for the possibility of a reloc on the third word. */
4967 if (rel < relend
4968 && rel->r_offset == offset - 8)
4969 rel += 1;
1e2f5b6e
AM		 4970 }
4971
4972 if (need_edit)
4973 {
4974 Elf_Internal_Rela *write_rel;
4975 bfd_byte *rptr, *wptr;
b34976b6 4976 bfd_boolean skip;
1e2f5b6e
AM		 4977
4978 /* This seems a waste of time as input .opd sections are all
4979 zeros as generated by gcc, but I suppose there's no reason
4980 this will always be so. We might start putting something in
4981 the third word of .opd entries. */
4982 if ((sec->flags & SEC_IN_MEMORY) == 0)
4983 {
4984 bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size);
6cdc0ccc 4985 if (loc == NULL
4ce794b7 4986 || !bfd_get_section_contents (ibfd, sec, loc, 0,
6cdc0ccc
AM		 4987 sec->_raw_size))
4988 {
50bc7936 4989 error_ret:
6cdc0ccc
AM		 4990 if (local_syms != NULL
4991 && symtab_hdr->contents != (unsigned char *) local_syms)
4992 free (local_syms);
6cdc0ccc
AM		 4993 if (elf_section_data (sec)->relocs != relstart)
4994 free (relstart);
b34976b6 4995 return FALSE;
6cdc0ccc 4996 }
1e2f5b6e
AM		 4997 sec->contents = loc;
4998 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
4999 }
5000
5001 elf_section_data (sec)->relocs = relstart;
5002
5003 wptr = sec->contents;
5004 rptr = sec->contents;
5005 write_rel = relstart;
b34976b6 5006 skip = FALSE;
1e2f5b6e
AM		 5007 offset = 0;
5008 for (rel = relstart; rel < relend; rel++)
5009 {
50bc7936
AM		 5010 unsigned long r_symndx;
5011 asection *sym_sec;
5012 struct elf_link_hash_entry *h;
5013 Elf_Internal_Sym *sym;
5014
5015 r_symndx = ELF64_R_SYM (rel->r_info);
5016 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
5017 r_symndx, ibfd))
5018 goto error_ret;
5019
1e2f5b6e
AM		 5020 if (rel->r_offset == offset)
5021 {
50bc7936
AM		 5022 struct ppc_link_hash_entry *fdh = NULL;
5023 if (h != NULL)
5024 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
5025 ppc_hash_table (info));
1e2f5b6e 5026
51020317
AM		 5027 skip = (sym_sec->owner != ibfd
5028 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 5029 if (skip)
5030 {
0be617ce 5031 if (h != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 5032 {
5033 /* Arrange for the function descriptor sym
5034 to be dropped. */
d6fe2dc1
AM		 5035 fdh->elf.root.u.def.value = 0;
5036 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7
AM		 5037 }
5038 }
5039 else
1e2f5b6e
AM		 5040 {
5041 /* We'll be keeping this opd entry. */
5042
5043 if (h != NULL)
5044 {
5045 /* Redefine the function descriptor symbol
5046 to this location in the opd section.
5047 We've checked above that opd relocs are
5048 ordered. */
d6fe2dc1 5049 fdh->elf.root.u.def.value = wptr - sec->contents;
1e2f5b6e
AM		 5050 }
5051 else
5052 {
6cdc0ccc
AM		 5053 /* Local syms are a bit tricky. We could
5054 tweak them as they can be cached, but
5055 we'd need to look through the local syms
5056 for the function descriptor sym which we
5057 don't have at the moment. So keep an
b34976b6 5058 array of adjustments. */
7f6a7663 5059 adjust[rel->r_offset / 24] = wptr - rptr;
1e2f5b6e
AM		 5060 }
5061
5062 if (wptr != rptr)
5063 memcpy (wptr, rptr, 24);
5064 wptr += 24;
5065 }
5066 rptr += 24;
5067 offset += 24;
5068 }
5069
50bc7936
AM		 5070 if (skip)
5071 {
5072 BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info)));
5073 if (info->shared)
5074 {
5075 /* We won't be needing dynamic relocs here. */
5076 struct ppc_dyn_relocs **pp;
5077 struct ppc_dyn_relocs *p;
5078
5079 if (h != NULL)
5080 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
5081 else if (sym_sec != NULL)
5082 pp = ((struct ppc_dyn_relocs **)
5083 &elf_section_data (sym_sec)->local_dynrel);
5084 else
5085 pp = ((struct ppc_dyn_relocs **)
5086 &elf_section_data (sec)->local_dynrel);
5087 while ((p = *pp) != NULL)
5088 {
5089 if (p->sec == sec)
5090 {
5091 p->count -= 1;
5092 if (p->count == 0)
5093 *pp = p->next;
5094 break;
5095 }
5096 pp = &p->next;
5097 }
5098 }
5099 }
5100 else
1e2f5b6e 5101 {
50bc7936
AM		 5102 /* We need to adjust any reloc offsets to point to the
5103 new opd entries. While we're at it, we may as well
5104 remove redundant relocs. */
1e2f5b6e
AM		 5105 rel->r_offset += wptr - rptr;
5106 if (write_rel != rel)
5107 memcpy (write_rel, rel, sizeof (*rel));
5108 ++write_rel;
5109 }
5110 }
5111
5112 sec->_cooked_size = wptr - sec->contents;
5113 sec->reloc_count = write_rel - relstart;
cdcf6e38
AM		 5114 /* Fudge the size too, as this is used later in
5115 elf_bfd_final_link if we are emitting relocs. */
5116 elf_section_data (sec)->rel_hdr.sh_size
5117 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
5118 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
1e2f5b6e 5119 }
6cdc0ccc 5120 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 5121 free (relstart);
6cdc0ccc 5122
411e1bfb
AM		 5123 if (local_syms != NULL
5124 && symtab_hdr->contents != (unsigned char *) local_syms)
5125 {
5126 if (!info->keep_memory)
5127 free (local_syms);
5128 else
5129 symtab_hdr->contents = (unsigned char *) local_syms;
5130 }
5131 }
5132
5133 return TRUE;
5134}
5135
951fd09b 5136/* Set htab->tls_sec. */
411e1bfb
AM		 5137
5138bfd_boolean
4ce794b7 5139ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb
AM		 5140{
5141 asection *tls;
411e1bfb
AM		 5142 struct ppc_link_hash_table *htab;
5143
411e1bfb
AM		 5144 for (tls = obfd->sections; tls != NULL; tls = tls->next)
5145 if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD))
5146 == (SEC_THREAD_LOCAL | SEC_LOAD))
5147 break;
411e1bfb
AM		 5148
5149 htab = ppc_hash_table (info);
5150 htab->tls_sec = tls;
a48ebf4d
AM		 5151
5152 if (htab->tls_get_addr != NULL)
5153 {
5154 struct elf_link_hash_entry *h = htab->tls_get_addr;
5155
5156 while (h->root.type == bfd_link_hash_indirect
5157 || h->root.type == bfd_link_hash_warning)
5158 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5159
5160 htab->tls_get_addr = h;
5161 }
5162
951fd09b
AM		 5163 return tls != NULL;
5164}
411e1bfb 5165
951fd09b
AM		 5166/* Run through all the TLS relocs looking for optimization
5167 opportunities. The linker has been hacked (see ppc64elf.em) to do
5168 a preliminary section layout so that we know the TLS segment
5169 offsets. We can't optimize earlier because some optimizations need
5170 to know the tp offset, and we need to optimize before allocating
5171 dynamic relocations. */
5172
5173bfd_boolean
4ce794b7 5174ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 5175{
5176 bfd *ibfd;
5177 asection *sec;
5178 struct ppc_link_hash_table *htab;
5179
1049f94e 5180 if (info->relocatable || info->shared)
411e1bfb
AM		 5181 return TRUE;
5182
951fd09b 5183 htab = ppc_hash_table (info);
411e1bfb
AM		 5184 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5185 {
5186 Elf_Internal_Sym *locsyms = NULL;
5187
5188 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5189 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5190 {
5191 Elf_Internal_Rela *relstart, *rel, *relend;
5192 int expecting_tls_get_addr;
5193
5194 /* Read the relocations. */
4ce794b7 5195 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 5196 info->keep_memory);
411e1bfb
AM		 5197 if (relstart == NULL)
5198 return FALSE;
5199
5200 expecting_tls_get_addr = 0;
5201 relend = relstart + sec->reloc_count;
5202 for (rel = relstart; rel < relend; rel++)
5203 {
5204 enum elf_ppc64_reloc_type r_type;
5205 unsigned long r_symndx;
5206 struct elf_link_hash_entry *h;
5207 Elf_Internal_Sym *sym;
5208 asection *sym_sec;
e7b938ca
AM		 5209 char *tls_mask;
5210 char tls_set, tls_clear, tls_type = 0;
411e1bfb 5211 bfd_vma value;
951fd09b 5212 bfd_boolean ok_tprel, is_local;
411e1bfb
AM		 5213
5214 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5215 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM		 5216 r_symndx, ibfd))
5217 {
5218 err_free_rel:
5219 if (elf_section_data (sec)->relocs != relstart)
5220 free (relstart);
5221 if (locsyms != NULL
5222 && (elf_tdata (ibfd)->symtab_hdr.contents
5223 != (unsigned char *) locsyms))
5224 free (locsyms);
5225 return FALSE;
5226 }
5227
5228 if (h != NULL)
5229 {
5230 if (h->root.type != bfd_link_hash_defined
5231 && h->root.type != bfd_link_hash_defweak)
5232 continue;
5233 value = h->root.u.def.value;
5234 }
5235 else
5236 value = sym->st_value;
951fd09b 5237
411e1bfb 5238 ok_tprel = FALSE;
951fd09b
AM		 5239 is_local = FALSE;
5240 if (h == NULL
5241 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5242 {
951fd09b 5243 is_local = TRUE;
411e1bfb
AM		 5244 value += sym_sec->output_offset;
5245 value += sym_sec->output_section->vma;
5246 value -= htab->tls_sec->vma;
5247 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
5248 < (bfd_vma) 1 << 32);
5249 }
5250
4ce794b7 5251 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM		 5252 switch (r_type)
5253 {
5254 case R_PPC64_GOT_TLSLD16:
5255 case R_PPC64_GOT_TLSLD16_LO:
5256 case R_PPC64_GOT_TLSLD16_HI:
5257 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM		 5258 /* These relocs should never be against a symbol
5259 defined in a shared lib. Leave them alone if
5260 that turns out to be the case. */
e717da7e 5261 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM		 5262 if (!is_local)
5263 continue;
5264
951fd09b
AM		 5265 /* LD -> LE */
5266 tls_set = 0;
5267 tls_clear = TLS_LD;
e7b938ca 5268 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5269 expecting_tls_get_addr = 1;
5270 break;
5271
5272 case R_PPC64_GOT_TLSGD16:
5273 case R_PPC64_GOT_TLSGD16_LO:
5274 case R_PPC64_GOT_TLSGD16_HI:
5275 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5276 if (ok_tprel)
411e1bfb
AM		 5277 /* GD -> LE */
5278 tls_set = 0;
5279 else
5280 /* GD -> IE */
951fd09b
AM		 5281 tls_set = TLS_TLS | TLS_TPRELGD;
5282 tls_clear = TLS_GD;
e7b938ca 5283 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5284 expecting_tls_get_addr = 1;
5285 break;
5286
5287 case R_PPC64_GOT_TPREL16_DS:
5288 case R_PPC64_GOT_TPREL16_LO_DS:
5289 case R_PPC64_GOT_TPREL16_HI:
5290 case R_PPC64_GOT_TPREL16_HA:
5291 expecting_tls_get_addr = 0;
5292 if (ok_tprel)
5293 {
5294 /* IE -> LE */
5295 tls_set = 0;
5296 tls_clear = TLS_TPREL;
e7b938ca 5297 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM		 5298 break;
5299 }
5300 else
5301 continue;
5302
5303 case R_PPC64_REL14:
5304 case R_PPC64_REL14_BRTAKEN:
5305 case R_PPC64_REL14_BRNTAKEN:
5306 case R_PPC64_REL24:
5307 if (h != NULL
5308 && h == htab->tls_get_addr)
5309 {
5310 if (!expecting_tls_get_addr
5311 && rel != relstart
5312 && ((ELF64_R_TYPE (rel[-1].r_info)
5313 == R_PPC64_TOC16)
5314 || (ELF64_R_TYPE (rel[-1].r_info)
5315 == R_PPC64_TOC16_LO)))
5316 {
5317 /* Check for toc tls entries. */
5318 char *toc_tls;
951fd09b 5319 int retval;
411e1bfb 5320
e7b938ca 5321 retval = get_tls_mask (&toc_tls, &locsyms,
951fd09b
AM		 5322 rel - 1, ibfd);
5323 if (retval == 0)
411e1bfb
AM		 5324 goto err_free_rel;
5325 if (toc_tls != NULL)
951fd09b 5326 expecting_tls_get_addr = retval > 1;
411e1bfb
AM		 5327 }
5328
5329 if (expecting_tls_get_addr)
5330 {
5331 struct plt_entry *ent;
5332 for (ent = h->plt.plist; ent; ent = ent->next)
5333 if (ent->addend == 0)
5334 {
5335 if (ent->plt.refcount > 0)
5336 ent->plt.refcount -= 1;
5337 break;
5338 }
5339 }
5340 }
5341 expecting_tls_get_addr = 0;
5342 continue;
5343
5344 case R_PPC64_TPREL64:
5345 expecting_tls_get_addr = 0;
5346 if (ok_tprel)
5347 {
5348 /* IE -> LE */
5349 tls_set = TLS_EXPLICIT;
5350 tls_clear = TLS_TPREL;
5351 break;
5352 }
5353 else
5354 continue;
5355
5356 case R_PPC64_DTPMOD64:
5357 expecting_tls_get_addr = 0;
951fd09b
AM		 5358 if (rel + 1 < relend
5359 && (rel[1].r_info
5360 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
5361 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 5362 {
951fd09b 5363 if (ok_tprel)
411e1bfb 5364 /* GD -> LE */
951fd09b 5365 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM		 5366 else
5367 /* GD -> IE */
951fd09b
AM		 5368 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
5369 tls_clear = TLS_GD;
411e1bfb
AM		 5370 }
5371 else
5372 {
951fd09b
AM		 5373 if (!is_local)
5374 continue;
5375
5376 /* LD -> LE */
5377 tls_set = TLS_EXPLICIT;
5378 tls_clear = TLS_LD;
411e1bfb
AM		 5379 }
5380 break;
5381
5382 default:
5383 expecting_tls_get_addr = 0;
5384 continue;
5385 }
5386
5387 if ((tls_set & TLS_EXPLICIT) == 0)
5388 {
5389 struct got_entry *ent;
5390
5391 /* Adjust got entry for this reloc. */
5392 if (h != NULL)
5393 ent = h->got.glist;
5394 else
5395 ent = elf_local_got_ents (ibfd)[r_symndx];
5396
5397 for (; ent != NULL; ent = ent->next)
5398 if (ent->addend == rel->r_addend
e717da7e 5399 && ent->owner == ibfd
e7b938ca 5400 && ent->tls_type == tls_type)
411e1bfb
AM		 5401 break;
5402 if (ent == NULL)
5403 abort ();
5404
5405 if (tls_set == 0)
5406 {
5407 /* We managed to get rid of a got entry. */
5408 if (ent->got.refcount > 0)
5409 ent->got.refcount -= 1;
5410 }
411e1bfb
AM		 5411 }
5412 else if (h != NULL)
5413 {
5414 struct ppc_link_hash_entry * eh;
5415 struct ppc_dyn_relocs **pp;
5416 struct ppc_dyn_relocs *p;
5417
5418 /* Adjust dynamic relocs. */
5419 eh = (struct ppc_link_hash_entry *) h;
5420 for (pp = &eh->dyn_relocs;
5421 (p = *pp) != NULL;
5422 pp = &p->next)
5423 if (p->sec == sec)
5424 {
5425 /* If we got rid of a DTPMOD/DTPREL reloc
5426 pair then we'll lose one or two dyn
5427 relocs. */
951fd09b 5428 if (tls_set == (TLS_EXPLICIT | TLS_GD))
411e1bfb 5429 p->count -= 1;
951fd09b 5430 p->count -= 1;
411e1bfb
AM		 5431 if (p->count == 0)
5432 *pp = p->next;
5433 break;
5434 }
5435 }
5436
e7b938ca
AM		 5437 *tls_mask |= tls_set;
5438 *tls_mask &= ~tls_clear;
411e1bfb
AM		 5439 }
5440
5441 if (elf_section_data (sec)->relocs != relstart)
5442 free (relstart);
5443 }
5444
5445 if (locsyms != NULL
5446 && (elf_tdata (ibfd)->symtab_hdr.contents
5447 != (unsigned char *) locsyms))
6cdc0ccc
AM		 5448 {
5449 if (!info->keep_memory)
411e1bfb 5450 free (locsyms);
6cdc0ccc 5451 else
411e1bfb 5452 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 5453 }
1e2f5b6e 5454 }
b34976b6 5455 return TRUE;
1e2f5b6e 5456}
b34976b6 5457
65f38f15
AM		 5458/* This is the condition under which ppc64_elf_finish_dynamic_symbol
5459 will be called from elflink.h. If elflink.h doesn't call our
5460 finish_dynamic_symbol routine, we'll need to do something about
5461 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
f4656909 5462#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
65f38f15 5463 ((DYN) \
f4656909 5464 && ((SHARED) \
65f38f15
AM		 5465 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5466 && ((H)->dynindx != -1 \
5467 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5bd4f169 5468
65f38f15
AM		 5469/* Allocate space in .plt, .got and associated reloc sections for
5470 dynamic relocs. */
5bd4f169 5471
b34976b6 5472static bfd_boolean
4ce794b7 5473allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5474{
65f38f15
AM		 5475 struct bfd_link_info *info;
5476 struct ppc_link_hash_table *htab;
5bd4f169 5477 asection *s;
65f38f15
AM		 5478 struct ppc_link_hash_entry *eh;
5479 struct ppc_dyn_relocs *p;
411e1bfb 5480 struct got_entry *gent;
5bd4f169 5481
e92d460e 5482 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5483 return TRUE;
5bd4f169 5484
e92d460e
AM		 5485 if (h->root.type == bfd_link_hash_warning)
5486 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5487
65f38f15
AM		 5488 info = (struct bfd_link_info *) inf;
5489 htab = ppc_hash_table (info);
5bd4f169 5490
65f38f15 5491 if (htab->elf.dynamic_sections_created
411e1bfb 5492 && h->dynindx != -1
9c7a29a3 5493 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 5494 {
411e1bfb
AM		 5495 struct plt_entry *pent;
5496 bfd_boolean doneone = FALSE;
5497 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
5498 if (pent->plt.refcount > 0)
5499 {
5500 BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor);
5501
5502 /* If this is the first .plt entry, make room for the special
5503 first entry. */
4ce794b7 5504 s = htab->plt;
411e1bfb
AM		 5505 if (s->_raw_size == 0)
5506 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
5507
5508 pent->plt.offset = s->_raw_size;
5509
5510 /* Make room for this entry. */
5511 s->_raw_size += PLT_ENTRY_SIZE;
5512
5513 /* Make room for the .glink code. */
4ce794b7 5514 s = htab->glink;
411e1bfb
AM		 5515 if (s->_raw_size == 0)
5516 s->_raw_size += GLINK_CALL_STUB_SIZE;
5517 /* We need bigger stubs past index 32767. */
5518 if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
5519 s->_raw_size += 4;
5520 s->_raw_size += 2*4;
5521
5522 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 5523 s = htab->relplt;
411e1bfb
AM		 5524 s->_raw_size += sizeof (Elf64_External_Rela);
5525 doneone = TRUE;
5526 }
5527 else
5528 pent->plt.offset = (bfd_vma) -1;
5529 if (!doneone)
65f38f15 5530 {
411e1bfb 5531 h->plt.plist = NULL;
65f38f15
AM		 5532 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5533 }
5534 }
5535 else
5536 {
411e1bfb 5537 h->plt.plist = NULL;
65f38f15
AM		 5538 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5539 }
5540
951fd09b
AM		 5541 eh = (struct ppc_link_hash_entry *) h;
5542 /* Run through the TLS GD got entries first if we're changing them
5543 to TPREL. */
e7b938ca 5544 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 5545 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5546 if (gent->got.refcount > 0
5547 && (gent->tls_type & TLS_GD) != 0)
5548 {
5549 /* This was a GD entry that has been converted to TPREL. If
5550 there happens to be a TPREL entry we can use that one. */
5551 struct got_entry *ent;
5552 for (ent = h->got.glist; ent != NULL; ent = ent->next)
5553 if (ent->got.refcount > 0
5554 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 5555 && ent->addend == gent->addend
5556 && ent->owner == gent->owner)
951fd09b
AM		 5557 {
5558 gent->got.refcount = 0;
5559 break;
5560 }
5561
5562 /* If not, then we'll be using our own TPREL entry. */
5563 if (gent->got.refcount != 0)
5564 gent->tls_type = TLS_TLS | TLS_TPREL;
5565 }
5566
411e1bfb
AM		 5567 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5568 if (gent->got.refcount > 0)
5569 {
951fd09b
AM		 5570 bfd_boolean dyn;
5571
411e1bfb 5572 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 5573 Undefined weak syms won't yet be marked as dynamic,
5574 nor will all TLS symbols. */
411e1bfb
AM		 5575 if (h->dynindx == -1
5576 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5577 {
5578 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5579 return FALSE;
5580 }
65f38f15 5581
d881513a
AM		 5582 if ((gent->tls_type & TLS_LD) != 0
5583 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5584 {
e717da7e 5585 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 5586 continue;
411e1bfb 5587 }
951fd09b 5588
e717da7e 5589 s = ppc64_elf_tdata (gent->owner)->got;
951fd09b 5590 gent->got.offset = s->_raw_size;
d881513a
AM		 5591 s->_raw_size
5592 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 5593 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 5594 if ((info->shared
5595 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5596 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5597 || h->root.type != bfd_link_hash_undefweak))
e717da7e 5598 ppc64_elf_tdata (gent->owner)->relgot->_raw_size
e7b938ca 5599 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 5600 ? 2 * sizeof (Elf64_External_Rela)
5601 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 5602 }
5603 else
5604 gent->got.offset = (bfd_vma) -1;
65f38f15 5605
65f38f15 5606 if (eh->dyn_relocs == NULL)
b34976b6 5607 return TRUE;
65f38f15
AM		 5608
5609 /* In the shared -Bsymbolic case, discard space allocated for
5610 dynamic pc-relative relocs against symbols which turn out to be
5611 defined in regular objects. For the normal shared case, discard
5612 space for relocs that have become local due to symbol visibility
5613 changes. */
5614
5615 if (info->shared)
5616 {
9c7a29a3
AM		 5617 /* Relocs that use pc_count are those that appear on a call insn,
5618 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
5619 generated via assembly. We want calls to protected symbols to
5620 resolve directly to the function rather than going via the plt.
5621 If people want function pointer comparisons to work as expected
5622 then they should avoid writing weird assembly. */
09695f56 5623 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 5624 {
5625 struct ppc_dyn_relocs **pp;
5626
5627 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 5628 {
65f38f15
AM		 5629 p->count -= p->pc_count;
5630 p->pc_count = 0;
5631 if (p->count == 0)
5632 *pp = p->next;
5633 else
5634 pp = &p->next;
5bd4f169 5635 }
65f38f15 5636 }
4e795f50
AM		 5637
5638 /* Also discard relocs on undefined weak syms with non-default
5639 visibility. */
5640 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5641 && h->root.type == bfd_link_hash_undefweak)
5642 eh->dyn_relocs = NULL;
65f38f15 5643 }
f4656909 5644 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 5645 {
5646 /* For the non-shared case, discard space for relocs against
5647 symbols which turn out to need copy relocs or are not
5648 dynamic. */
5649
5650 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 5651 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5652 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
65f38f15
AM		 5653 {
5654 /* Make sure this symbol is output as a dynamic symbol.
5655 Undefined weak syms won't yet be marked as dynamic. */
5656 if (h->dynindx == -1
5657 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5658 {
ec338859 5659 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
b34976b6 5660 return FALSE;
65f38f15
AM		 5661 }
5662
5663 /* If that succeeded, we know we'll be keeping all the
5664 relocs. */
5665 if (h->dynindx != -1)
5666 goto keep;
5667 }
5668
5669 eh->dyn_relocs = NULL;
5670
ec338859 5671 keep: ;
65f38f15
AM		 5672 }
5673
5674 /* Finally, allocate space. */
5675 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5676 {
5677 asection *sreloc = elf_section_data (p->sec)->sreloc;
5678 sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
5679 }
5680
b34976b6 5681 return TRUE;
65f38f15
AM		 5682}
5683
5684/* Find any dynamic relocs that apply to read-only sections. */
5685
b34976b6 5686static bfd_boolean
4ce794b7 5687readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 5688{
5689 struct ppc_link_hash_entry *eh;
5690 struct ppc_dyn_relocs *p;
5691
e92d460e
AM		 5692 if (h->root.type == bfd_link_hash_warning)
5693 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5694
65f38f15
AM		 5695 eh = (struct ppc_link_hash_entry *) h;
5696 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5697 {
5698 asection *s = p->sec->output_section;
5699
5700 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5701 {
4ce794b7 5702 struct bfd_link_info *info = inf;
65f38f15
AM		 5703
5704 info->flags |= DF_TEXTREL;
5705
5706 /* Not an error, just cut short the traversal. */
b34976b6 5707 return FALSE;
65f38f15
AM		 5708 }
5709 }
b34976b6 5710 return TRUE;
65f38f15
AM		 5711}
5712
5713/* Set the sizes of the dynamic sections. */
5714
b34976b6 5715static bfd_boolean
4ce794b7
AM		 5716ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5717 struct bfd_link_info *info)
65f38f15
AM		 5718{
5719 struct ppc_link_hash_table *htab;
5720 bfd *dynobj;
5721 asection *s;
b34976b6 5722 bfd_boolean relocs;
65f38f15
AM		 5723 bfd *ibfd;
5724
5725 htab = ppc_hash_table (info);
5726 dynobj = htab->elf.dynobj;
5727 if (dynobj == NULL)
5728 abort ();
5729
5730 if (htab->elf.dynamic_sections_created)
5731 {
5732 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 5733 if (info->executable)
65f38f15
AM		 5734 {
5735 s = bfd_get_section_by_name (dynobj, ".interp");
5736 if (s == NULL)
5737 abort ();
5738 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
5739 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5740 }
5741 }
5742
5743 /* Set up .got offsets for local syms, and space for local dynamic
5744 relocs. */
5745 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5746 {
411e1bfb
AM		 5747 struct got_entry **lgot_ents;
5748 struct got_entry **end_lgot_ents;
e7b938ca 5749 char *lgot_masks;
65f38f15
AM		 5750 bfd_size_type locsymcount;
5751 Elf_Internal_Shdr *symtab_hdr;
5752 asection *srel;
5753
5754 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
5755 continue;
5756
e717da7e
AM		 5757 if (ppc64_tlsld_got (ibfd)->refcount > 0)
5758 {
5759 s = ppc64_elf_tdata (ibfd)->got;
5760 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
5761 s->_raw_size += 16;
5762 if (info->shared)
5763 {
5764 srel = ppc64_elf_tdata (ibfd)->relgot;
5765 srel->_raw_size += sizeof (Elf64_External_Rela);
5766 }
5767 }
5768 else
5769 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
5770
65f38f15
AM		 5771 for (s = ibfd->sections; s != NULL; s = s->next)
5772 {
ec338859 5773 struct ppc_dyn_relocs *p;
65f38f15 5774
ec338859
AM		 5775 for (p = *((struct ppc_dyn_relocs **)
5776 &elf_section_data (s)->local_dynrel);
5777 p != NULL;
5778 p = p->next)
65f38f15 5779 {
ec338859
AM		 5780 if (!bfd_is_abs_section (p->sec)
5781 && bfd_is_abs_section (p->sec->output_section))
5782 {
5783 /* Input section has been discarded, either because
5784 it is a copy of a linkonce section or due to
5785 linker script /DISCARD/, so we'll be discarding
5786 the relocs too. */
5787 }
248866a8 5788 else if (p->count != 0)
ec338859
AM		 5789 {
5790 srel = elf_section_data (p->sec)->sreloc;
5791 srel->_raw_size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 5792 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
5793 info->flags |= DF_TEXTREL;
ec338859 5794 }
65f38f15
AM		 5795 }
5796 }
5797
411e1bfb
AM		 5798 lgot_ents = elf_local_got_ents (ibfd);
5799 if (!lgot_ents)
65f38f15
AM		 5800 continue;
5801
5802 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5803 locsymcount = symtab_hdr->sh_info;
411e1bfb 5804 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 5805 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 5806 s = ppc64_elf_tdata (ibfd)->got;
5807 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 5808 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 5809 {
411e1bfb
AM		 5810 struct got_entry *ent;
5811
5812 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
5813 if (ent->got.refcount > 0)
5814 {
e7b938ca 5815 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 5816 {
e717da7e 5817 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 5818 {
e717da7e 5819 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
411e1bfb
AM		 5820 s->_raw_size += 16;
5821 if (info->shared)
5822 srel->_raw_size += sizeof (Elf64_External_Rela);
5823 }
e717da7e 5824 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM		 5825 }
5826 else
5827 {
5828 ent->got.offset = s->_raw_size;
e7b938ca 5829 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb
AM		 5830 {
5831 s->_raw_size += 16;
5832 if (info->shared)
5833 srel->_raw_size += 2 * sizeof (Elf64_External_Rela);
5834 }
5835 else
5836 {
5837 s->_raw_size += 8;
5838 if (info->shared)
5839 srel->_raw_size += sizeof (Elf64_External_Rela);
5840 }
5841 }
5842 }
5843 else
5844 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 5845 }
5846 }
5847
5848 /* Allocate global sym .plt and .got entries, and space for global
5849 sym dynamic relocs. */
4ce794b7 5850 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM		 5851
5852 /* We now have determined the sizes of the various dynamic sections.
5853 Allocate memory for them. */
b34976b6 5854 relocs = FALSE;
65f38f15
AM		 5855 for (s = dynobj->sections; s != NULL; s = s->next)
5856 {
5857 if ((s->flags & SEC_LINKER_CREATED) == 0)
5858 continue;
5859
411e1bfb
AM		 5860 /* Reset _cooked_size since prelim layout will set it wrongly,
5861 and a non-zero _cooked_size sticks. */
5862 s->_cooked_size = 0;
5863
4ce794b7 5864 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 5865 /* These haven't been allocated yet; don't strip. */
5866 continue;
e717da7e
AM		 5867 else if (s == htab->got
5868 || s == htab->plt
4ce794b7 5869 || s == htab->glink)
65f38f15
AM		 5870 {
5871 /* Strip this section if we don't need it; see the
5872 comment below. */
5bd4f169 5873 }
65f38f15 5874 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169
AM		 5875 {
5876 if (s->_raw_size == 0)
5877 {
5878 /* If we don't need this section, strip it from the
5879 output file. This is mostly to handle .rela.bss and
5880 .rela.plt. We must create both sections in
5881 create_dynamic_sections, because they must be created
5882 before the linker maps input sections to output
5883 sections. The linker does that before
5884 adjust_dynamic_symbol is called, and it is that
5885 function which decides whether anything needs to go
5886 into these sections. */
5bd4f169
AM		 5887 }
5888 else
5889 {
4ce794b7 5890 if (s != htab->relplt)
b34976b6 5891 relocs = TRUE;
5bd4f169
AM		 5892
5893 /* We use the reloc_count field as a counter if we need
5894 to copy relocs into the output file. */
5895 s->reloc_count = 0;
5896 }
5897 }
65f38f15 5898 else
5bd4f169
AM		 5899 {
5900 /* It's not one of our sections, so don't allocate space. */
5901 continue;
5902 }
5903
65f38f15 5904 if (s->_raw_size == 0)
5bd4f169
AM		 5905 {
5906 _bfd_strip_section_from_output (info, s);
5907 continue;
5908 }
5909
5f333394
AM		 5910 /* .plt is in the bss section. We don't initialise it. */
5911 if ((s->flags & SEC_LOAD) == 0)
5912 continue;
5913
65f38f15
AM		 5914 /* Allocate memory for the section contents. We use bfd_zalloc
5915 here in case unused entries are not reclaimed before the
5916 section's contents are written out. This should not happen,
411e1bfb
AM		 5917 but this way if it does we get a R_PPC64_NONE reloc in .rela
5918 sections instead of garbage.
5919 We also rely on the section contents being zero when writing
5920 the GOT. */
4ce794b7 5921 s->contents = bfd_zalloc (dynobj, s->_raw_size);
65f38f15 5922 if (s->contents == NULL)
b34976b6 5923 return FALSE;
5bd4f169
AM		 5924 }
5925
e717da7e
AM		 5926 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5927 {
5928 s = ppc64_elf_tdata (ibfd)->got;
5929 if (s != NULL && s != htab->got)
5930 {
5931 s->_cooked_size = 0;
5932 if (s->_raw_size == 0)
5933 _bfd_strip_section_from_output (info, s);
5934 else
5935 {
5936 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5937 if (s->contents == NULL)
5938 return FALSE;
5939 }
5940 }
5941 s = ppc64_elf_tdata (ibfd)->relgot;
5942 if (s != NULL)
5943 {
5944 s->_cooked_size = 0;
5945 if (s->_raw_size == 0)
5946 _bfd_strip_section_from_output (info, s);
5947 else
5948 {
5949 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5950 if (s->contents == NULL)
5951 return FALSE;
5952 relocs = TRUE;
5953 s->reloc_count = 0;
5954 }
5955 }
5956 }
5957
e86ce104 5958 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 5959 {
5960 /* Add some entries to the .dynamic section. We fill in the
5961 values later, in ppc64_elf_finish_dynamic_sections, but we
5962 must add the entries now so that we get the correct size for
5963 the .dynamic section. The DT_DEBUG entry is filled in by the
5964 dynamic linker and used by the debugger. */
dc810e39 5965#define add_dynamic_entry(TAG, VAL) \
4ce794b7 5966 bfd_elf64_add_dynamic_entry (info, (TAG), (VAL))
dc810e39 5967
36af4a4e 5968 if (info->executable)
5bd4f169 5969 {
dc810e39 5970 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 5971 return FALSE;
5bd4f169
AM		 5972 }
5973
4ce794b7 5974 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5bd4f169 5975 {
dc810e39
AM		 5976 if (!add_dynamic_entry (DT_PLTGOT, 0)
5977 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5978 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 5979 || !add_dynamic_entry (DT_JMPREL, 0)
5980 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 5981 return FALSE;
5bd4f169
AM		 5982 }
5983
19397422
AM		 5984 if (NO_OPD_RELOCS)
5985 {
5986 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
5987 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 5988 return FALSE;
19397422
AM		 5989 }
5990
5bd4f169
AM		 5991 if (relocs)
5992 {
dc810e39
AM		 5993 if (!add_dynamic_entry (DT_RELA, 0)
5994 || !add_dynamic_entry (DT_RELASZ, 0)
5995 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 5996 return FALSE;
5bd4f169 5997
65f38f15
AM		 5998 /* If any dynamic relocs apply to a read-only section,
5999 then we need a DT_TEXTREL entry. */
248866a8 6000 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 6001 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 6002
65f38f15 6003 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 6004 {
65f38f15 6005 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 6006 return FALSE;
5bd4f169 6007 }
5bd4f169 6008 }
5bd4f169 6009 }
65f38f15 6010#undef add_dynamic_entry
5bd4f169 6011
b34976b6 6012 return TRUE;
5bd4f169
AM		 6013}
6014
721956f4 6015/* Determine the type of stub needed, if any, for a call. */
5bd4f169 6016
4ce794b7
AM		 6017static inline enum ppc_stub_type
6018ppc_type_of_stub (asection *input_sec,
6019 const Elf_Internal_Rela *rel,
6020 struct ppc_link_hash_entry **hash,
6021 bfd_vma destination)
5bd4f169 6022{
721956f4
AM		 6023 struct ppc_link_hash_entry *h = *hash;
6024 bfd_vma location;
6025 bfd_vma branch_offset;
6026 bfd_vma max_branch_offset;
4ce794b7 6027 enum elf_ppc64_reloc_type r_type;
5bd4f169 6028
721956f4
AM		 6029 if (h != NULL)
6030 {
6031 if (h->oh != NULL
721956f4 6032 && h->oh->dynindx != -1)
5bd4f169 6033 {
411e1bfb
AM		 6034 struct plt_entry *ent;
6035 for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next)
6036 if (ent->addend == rel->r_addend
6037 && ent->plt.offset != (bfd_vma) -1)
6038 {
6039 *hash = (struct ppc_link_hash_entry *) h->oh;
6040 return ppc_stub_plt_call;
6041 }
5bd4f169
AM		 6042 }
6043
ad8e1ba5
AM		 6044 if (h->elf.root.type != bfd_link_hash_defined
6045 && h->elf.root.type != bfd_link_hash_defweak)
721956f4 6046 return ppc_stub_none;
5d1634d7 6047 }
5d1634d7 6048
721956f4
AM		 6049 /* Determine where the call point is. */
6050 location = (input_sec->output_offset
6051 + input_sec->output_section->vma
6052 + rel->r_offset);
5d1634d7 6053
721956f4
AM		 6054 branch_offset = destination - location;
6055 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 6056
721956f4
AM		 6057 /* Determine if a long branch stub is needed. */
6058 max_branch_offset = 1 << 25;
4ce794b7 6059 if (r_type != R_PPC64_REL24)
721956f4 6060 max_branch_offset = 1 << 15;
5d1634d7 6061
721956f4
AM		 6062 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
6063 /* We need a stub. Figure out whether a long_branch or plt_branch
6064 is needed later. */
6065 return ppc_stub_long_branch;
5d1634d7 6066
721956f4 6067 return ppc_stub_none;
5d1634d7
AM		 6068}
6069
6070/* Build a .plt call stub. */
6071
4ce794b7
AM		 6072static inline bfd_byte *
6073build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM		 6074{
6075#define PPC_LO(v) ((v) & 0xffff)
6076#define PPC_HI(v) (((v) >> 16) & 0xffff)
6077#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6078
5d1634d7 6079 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 6080 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM		 6081 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6082 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6083 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 6084 offset += 8;
6085 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
6086 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6087 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 6088 offset += 8;
6089 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
6090 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6091 bfd_put_32 (obfd, BCTR, p), p += 4;
6092 return p;
6093}
6094
b34976b6 6095static bfd_boolean
4ce794b7 6096ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 6097{
721956f4
AM		 6098 struct ppc_stub_hash_entry *stub_entry;
6099 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 6100 struct bfd_link_info *info;
6101 struct ppc_link_hash_table *htab;
721956f4
AM		 6102 bfd_byte *loc;
6103 bfd_byte *p;
6104 unsigned int indx;
411e1bfb 6105 struct plt_entry *ent;
721956f4
AM		 6106 bfd_vma off;
6107 int size;
5d1634d7 6108
721956f4
AM		 6109 /* Massage our args to the form they really have. */
6110 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 6111 info = in_arg;
5d1634d7 6112
5d1634d7
AM		 6113 htab = ppc_hash_table (info);
6114
721956f4 6115 /* Make a note of the offset within the stubs for this entry. */
97b639ba
AM		 6116 stub_entry->stub_offset = stub_entry->stub_sec->_cooked_size;
6117 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 6118
4ce794b7 6119 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 6120 switch (stub_entry->stub_type)
5d1634d7 6121 {
721956f4 6122 case ppc_stub_long_branch:
ad8e1ba5 6123 case ppc_stub_long_branch_r2off:
721956f4
AM		 6124 /* Branches are relative. This is where we are going to. */
6125 off = (stub_entry->target_value
6126 + stub_entry->target_section->output_offset
6127 + stub_entry->target_section->output_section->vma);
5d1634d7 6128
721956f4
AM		 6129 /* And this is where we are coming from. */
6130 off -= (stub_entry->stub_offset
97b639ba
AM		 6131 + stub_entry->stub_sec->output_offset
6132 + stub_entry->stub_sec->output_section->vma);
e86ce104 6133
ad8e1ba5
AM		 6134 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
6135 size = 4;
6136 else
6137 {
6138 bfd_vma r2off;
6139
6140 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6141 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 6142 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6143 loc += 4;
97b639ba 6144 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6145 loc += 4;
97b639ba 6146 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 6147 loc += 4;
6148 off -= 12;
6149 size = 16;
6150 }
97b639ba 6151 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5
AM		 6152
6153 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
721956f4 6154 break;
e86ce104 6155
721956f4 6156 case ppc_stub_plt_branch:
ad8e1ba5 6157 case ppc_stub_plt_branch_r2off:
721956f4
AM		 6158 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6159 stub_entry->root.string + 9,
b34976b6 6160 FALSE, FALSE);
721956f4
AM		 6161 if (br_entry == NULL)
6162 {
6163 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
6164 stub_entry->root.string + 9);
b34976b6
AM		 6165 htab->stub_error = TRUE;
6166 return FALSE;
721956f4
AM		 6167 }
6168
6169 off = (stub_entry->target_value
6170 + stub_entry->target_section->output_offset
6171 + stub_entry->target_section->output_section->vma);
6172
4ce794b7
AM		 6173 bfd_put_64 (htab->brlt->owner, off,
6174 htab->brlt->contents + br_entry->offset);
721956f4
AM		 6175
6176 if (info->shared)
6177 {
6178 /* Create a reloc for the branch lookup table entry. */
6179 Elf_Internal_Rela rela;
ad8e1ba5 6180 bfd_byte *rl;
5d1634d7 6181
721956f4 6182 rela.r_offset = (br_entry->offset
4ce794b7
AM		 6183 + htab->brlt->output_offset
6184 + htab->brlt->output_section->vma);
721956f4
AM		 6185 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
6186 rela.r_addend = off;
6187
4ce794b7
AM		 6188 rl = htab->relbrlt->contents;
6189 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
6190 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM		 6191 }
6192
6193 off = (br_entry->offset
4ce794b7
AM		 6194 + htab->brlt->output_offset
6195 + htab->brlt->output_section->vma
6196 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 6197 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6198
ad8e1ba5 6199 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 6200 {
6201 (*_bfd_error_handler)
e86ce104 6202 (_("linkage table error against `%s'"),
721956f4 6203 stub_entry->root.string);
5d1634d7 6204 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 6205 htab->stub_error = TRUE;
6206 return FALSE;
5d1634d7 6207 }
41bd81ab 6208
721956f4 6209 indx = off;
ad8e1ba5
AM		 6210 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
6211 {
97b639ba 6212 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6213 loc += 4;
97b639ba 6214 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5
AM		 6215 size = 16;
6216 }
6217 else
6218 {
6219 bfd_vma r2off;
6220
6221 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6222 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 6223 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6224 loc += 4;
97b639ba 6225 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6226 loc += 4;
97b639ba 6227 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 6228 loc += 4;
97b639ba 6229 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6230 loc += 4;
97b639ba 6231 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 6232 size = 28;
6233 }
6234 loc += 4;
97b639ba 6235 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 6236 loc += 4;
97b639ba 6237 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 6238 break;
5d1634d7 6239
721956f4 6240 case ppc_stub_plt_call:
c862ae31
AM		 6241 /* Do the best we can for shared libraries built without
6242 exporting ".foo" for each "foo". This can happen when symbol
6243 versioning scripts strip all bar a subset of symbols. */
6244 if (stub_entry->h->oh->root.type != bfd_link_hash_defined
6245 && stub_entry->h->oh->root.type != bfd_link_hash_defweak)
6246 {
6247 /* Point the symbol at the stub. There may be multiple stubs,
6248 we don't really care; The main thing is to make this sym
8f3bab57
AM		 6249 defined somewhere. Maybe defining the symbol in the stub
6250 section is a silly idea. If we didn't do this, htab->top_id
6251 could disappear. */
c862ae31
AM		 6252 stub_entry->h->oh->root.type = bfd_link_hash_defined;
6253 stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec;
6254 stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset;
6255 }
6256
721956f4 6257 /* Now build the stub. */
411e1bfb
AM		 6258 off = (bfd_vma) -1;
6259 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6260 if (ent->addend == stub_entry->addend)
6261 {
6262 off = ent->plt.offset;
6263 break;
6264 }
721956f4
AM		 6265 if (off >= (bfd_vma) -2)
6266 abort ();
6267
6268 off &= ~ (bfd_vma) 1;
4ce794b7
AM		 6269 off += (htab->plt->output_offset
6270 + htab->plt->output_section->vma
6271 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6272 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6273
ad8e1ba5 6274 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 6275 {
6276 (*_bfd_error_handler)
6277 (_("linkage table error against `%s'"),
6278 stub_entry->h->elf.root.root.string);
6279 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 6280 htab->stub_error = TRUE;
6281 return FALSE;
721956f4
AM		 6282 }
6283
97b639ba 6284 p = build_plt_stub (htab->stub_bfd, loc, off);
721956f4
AM		 6285 size = p - loc;
6286 break;
6287
6288 default:
6289 BFD_FAIL ();
b34976b6 6290 return FALSE;
721956f4
AM		 6291 }
6292
97b639ba
AM		 6293 stub_entry->stub_sec->_cooked_size += size;
6294
6295 if (htab->emit_stub_syms
6296 && !(stub_entry->stub_type == ppc_stub_plt_call
6297 && stub_entry->h->oh->root.type == bfd_link_hash_defined
6298 && stub_entry->h->oh->root.u.def.section == stub_entry->stub_sec
6299 && stub_entry->h->oh->root.u.def.value == stub_entry->stub_offset))
6300 {
6301 struct elf_link_hash_entry *h;
6302 h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string,
6303 TRUE, FALSE, FALSE);
6304 if (h == NULL)
6305 return FALSE;
6306 if (h->root.type == bfd_link_hash_new)
6307 {
6308 h->root.type = bfd_link_hash_defined;
6309 h->root.u.def.section = stub_entry->stub_sec;
6310 h->root.u.def.value = stub_entry->stub_offset;
6311 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
6312 | ELF_LINK_HASH_DEF_REGULAR
6313 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
6314 | ELF_LINK_FORCED_LOCAL);
6315 }
6316 }
6317
b34976b6 6318 return TRUE;
721956f4
AM		 6319}
6320
6321/* As above, but don't actually build the stub. Just bump offset so
6322 we know stub section sizes, and select plt_branch stubs where
6323 long_branch stubs won't do. */
6324
b34976b6 6325static bfd_boolean
4ce794b7 6326ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 6327{
6328 struct ppc_stub_hash_entry *stub_entry;
6329 struct ppc_link_hash_table *htab;
6330 bfd_vma off;
6331 int size;
6332
6333 /* Massage our args to the form they really have. */
6334 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 6335 htab = in_arg;
721956f4
AM		 6336
6337 if (stub_entry->stub_type == ppc_stub_plt_call)
6338 {
411e1bfb 6339 struct plt_entry *ent;
58ac9f71 6340 off = (bfd_vma) -1;
411e1bfb
AM		 6341 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6342 if (ent->addend == stub_entry->addend)
6343 {
6344 off = ent->plt.offset & ~(bfd_vma) 1;
6345 break;
6346 }
58ac9f71 6347 if (off >= (bfd_vma) -2)
411e1bfb 6348 abort ();
4ce794b7
AM		 6349 off += (htab->plt->output_offset
6350 + htab->plt->output_section->vma
6351 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6352 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6353
ad8e1ba5 6354 size = PLT_CALL_STUB_SIZE;
4ce794b7 6355 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM		 6356 size += 4;
6357 }
6358 else
6359 {
ad8e1ba5
AM		 6360 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
6361 variants. */
721956f4
AM		 6362 off = (stub_entry->target_value
6363 + stub_entry->target_section->output_offset
6364 + stub_entry->target_section->output_section->vma);
6365 off -= (stub_entry->stub_sec->_raw_size
6366 + stub_entry->stub_sec->output_offset
6367 + stub_entry->stub_sec->output_section->vma);
6368
ad8e1ba5
AM		 6369 /* Reset the stub type from the plt variant in case we now
6370 can reach with a shorter stub. */
6371 if (stub_entry->stub_type >= ppc_stub_plt_branch)
6372 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
6373
6374 size = 4;
6375 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
6376 {
6377 off -= 12;
6378 size = 16;
6379 }
6380
6381 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 6382 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
6383 {
6384 struct ppc_branch_hash_entry *br_entry;
6385
6386 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6387 stub_entry->root.string + 9,
b34976b6 6388 TRUE, FALSE);
721956f4
AM		 6389 if (br_entry == NULL)
6390 {
6391 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
6392 stub_entry->root.string + 9);
b34976b6
AM		 6393 htab->stub_error = TRUE;
6394 return FALSE;
721956f4
AM		 6395 }
6396
6397 if (br_entry->iter != htab->stub_iteration)
6398 {
6399 br_entry->iter = htab->stub_iteration;
4ce794b7
AM		 6400 br_entry->offset = htab->brlt->_raw_size;
6401 htab->brlt->_raw_size += 8;
721956f4 6402 }
ad8e1ba5
AM		 6403
6404 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 6405 size = 16;
ad8e1ba5
AM		 6406 if (stub_entry->stub_type != ppc_stub_plt_branch)
6407 size = 28;
721956f4
AM		 6408 }
6409 }
6410
6411 stub_entry->stub_sec->_raw_size += size;
b34976b6 6412 return TRUE;
721956f4
AM		 6413}
6414
6415/* Set up various things so that we can make a list of input sections
6416 for each output section included in the link. Returns -1 on error,
cedb70c5 6417 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 6418
6419int
4ce794b7 6420ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
721956f4
AM		 6421{
6422 bfd *input_bfd;
734b6cf9 6423 int top_id, top_index, id;
721956f4 6424 asection *section;
734b6cf9 6425 asection **input_list;
721956f4
AM		 6426 bfd_size_type amt;
6427 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6428
4ce794b7 6429 if (htab->brlt == NULL)
721956f4
AM		 6430 return 0;
6431
1e2f5b6e 6432 /* Find the top input section id. */
3d6f9012 6433 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 6434 input_bfd != NULL;
6435 input_bfd = input_bfd->link_next)
6436 {
721956f4
AM		 6437 for (section = input_bfd->sections;
6438 section != NULL;
6439 section = section->next)
6440 {
6441 if (top_id < section->id)
6442 top_id = section->id;
6443 }
6444 }
721956f4 6445
8f3bab57 6446 htab->top_id = top_id;
721956f4 6447 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 6448 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 6449 if (htab->stub_group == NULL)
6450 return -1;
6451
3d6f9012
AM		 6452 /* Set toc_off for com, und, abs and ind sections. */
6453 for (id = 0; id < 3; id++)
6454 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 6455
3d6f9012 6456 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 6457
6458 /* We can't use output_bfd->section_count here to find the top output
6459 section index as some sections may have been removed, and
6460 _bfd_strip_section_from_output doesn't renumber the indices. */
6461 for (section = output_bfd->sections, top_index = 0;
6462 section != NULL;
6463 section = section->next)
6464 {
6465 if (top_index < section->index)
6466 top_index = section->index;
6467 }
6468
6469 htab->top_index = top_index;
6470 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 6471 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 6472 htab->input_list = input_list;
6473 if (input_list == NULL)
6474 return -1;
6475
721956f4
AM		 6476 return 1;
6477}
6478
e717da7e
AM		 6479/* The linker repeatedly calls this function for each TOC input section
6480 and linker generated GOT section. Group input bfds such that the toc
6481 within a group is less than 64k in size. Will break with cute linker
6482 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 6483
6484void
4ce794b7 6485ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 6486{
6487 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6488
6489 if (!htab->no_multi_toc)
6490 {
6491 bfd_vma addr = isec->output_offset + isec->output_section->vma;
6492 bfd_vma off = addr - htab->toc_curr;
6493 if (off + isec->_raw_size > 0x10000)
6494 {
6495 htab->toc_curr = addr;
6496 htab->multi_toc_needed = 1;
6497 }
6498 elf_gp (isec->owner) = (htab->toc_curr
6499 - elf_gp (isec->output_section->owner)
6500 + TOC_BASE_OFF);
6501 }
6502}
6503
6504/* Called after the last call to the above function. */
6505
6506void
4ce794b7
AM		 6507ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED,
6508 struct bfd_link_info *info)
ad8e1ba5
AM		 6509{
6510 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5
AM		 6511
6512 /* toc_curr tracks the TOC offset used for code sections below in
6513 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 6514 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 6515}
6516
9b5ecbd0
AM		 6517/* No toc references were found in ISEC. If the code in ISEC makes no
6518 calls, then there's no need to use toc adjusting stubs when branching
6519 into ISEC. Actually, indirect calls from ISEC are OK as they will
6520 load r2. */
6521
6522static int
4ce794b7 6523toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0
AM		 6524{
6525 bfd_byte *contents;
6526 bfd_size_type i;
6527 int ret;
6528 int branch_ok;
6529
772119ce
AM		 6530 /* We know none of our code bearing sections will need toc stubs. */
6531 if ((isec->flags & SEC_LINKER_CREATED) != 0)
6532 return 0;
6533
9b5ecbd0
AM		 6534 /* Hack for linux kernel. .fixup contains branches, but only back to
6535 the function that hit an exception. */
6536 branch_ok = strcmp (isec->name, ".fixup") == 0;
6537
6538 contents = elf_section_data (isec)->this_hdr.contents;
6539 if (contents == NULL)
6540 {
6541 contents = bfd_malloc (isec->_raw_size);
6542 if (contents == NULL)
6543 return -1;
6544 if (! bfd_get_section_contents (isec->owner, isec, contents,
e717da7e 6545 0, isec->_raw_size))
9b5ecbd0
AM		 6546 {
6547 free (contents);
6548 return -1;
6549 }
6550 if (info->keep_memory)
6551 elf_section_data (isec)->this_hdr.contents = contents;
6552 }
6553
6554 /* Code scan, because we don't necessarily have relocs on calls to
6555 static functions. */
6556 ret = 0;
6557 for (i = 0; i < isec->_raw_size; i += 4)
6558 {
6559 unsigned long insn = bfd_get_32 (isec->owner, contents + i);
6560 /* Is this a branch? */
772119ce 6561 if ((insn & (0x3f << 26)) == (18 << 26)
9b5ecbd0
AM		 6562 /* If branch and link, it's a function call. */
6563 && ((insn & 1) != 0
6564 /* Sibling calls use a plain branch. I don't know a way
6565 of deciding whether a branch is really a sibling call. */
6566 || !branch_ok))
6567 {
6568 ret = 1;
6569 break;
6570 }
6571 }
6572
6573 if (elf_section_data (isec)->this_hdr.contents != contents)
6574 free (contents);
6575 return ret;
6576}
6577
721956f4
AM		 6578/* The linker repeatedly calls this function for each input section,
6579 in the order that input sections are linked into output sections.
6580 Build lists of input sections to determine groupings between which
6581 we may insert linker stubs. */
6582
9b5ecbd0 6583bfd_boolean
4ce794b7 6584ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 6585{
6586 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9b5ecbd0 6587 int ret;
721956f4 6588
734b6cf9
AM		 6589 if ((isec->output_section->flags & SEC_CODE) != 0
6590 && isec->output_section->index <= htab->top_index)
721956f4 6591 {
734b6cf9 6592 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 6593 /* Steal the link_sec pointer for our list. */
721956f4 6594#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 6595 /* This happens to make the list in reverse order,
6596 which is what we want. */
734b6cf9
AM		 6597 PREV_SEC (isec) = *list;
6598 *list = isec;
721956f4 6599 }
ad8e1ba5
AM		 6600
6601 /* If a code section has a function that uses the TOC then we need
6602 to use the right TOC (obviously). Also, make sure that .opd gets
ee87f2da
AM		 6603 the correct TOC value for R_PPC64_TOC relocs that don't have or
6604 can't find their function symbol (shouldn't ever happen now). */
ad8e1ba5 6605 if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0)
9b5ecbd0
AM		 6606 {
6607 if (elf_gp (isec->owner) != 0)
6608 htab->toc_curr = elf_gp (isec->owner);
6609 }
6610 else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0)
6611 return FALSE;
6612 else
6613 isec->has_gp_reloc = ret;
ad8e1ba5
AM		 6614
6615 /* Functions that don't use the TOC can belong in any TOC group.
6616 Use the last TOC base. This happens to make _init and _fini
6617 pasting work. */
6618 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 6619 return TRUE;
721956f4
AM		 6620}
6621
6622/* See whether we can group stub sections together. Grouping stub
6623 sections may result in fewer stubs. More importantly, we need to
6624 put all .init* and .fini* stubs at the beginning of the .init or
6625 .fini output sections respectively, because glibc splits the
6626 _init and _fini functions into multiple parts. Putting a stub in
6627 the middle of a function is not a good idea. */
6628
6629static void
4ce794b7
AM		 6630group_sections (struct ppc_link_hash_table *htab,
6631 bfd_size_type stub_group_size,
6632 bfd_boolean stubs_always_before_branch)
721956f4 6633{
734b6cf9
AM		 6634 asection **list = htab->input_list + htab->top_index;
6635 do
721956f4 6636 {
734b6cf9
AM		 6637 asection *tail = *list;
6638 while (tail != NULL)
721956f4 6639 {
734b6cf9
AM		 6640 asection *curr;
6641 asection *prev;
6642 bfd_size_type total;
6643 bfd_boolean big_sec;
6644 bfd_vma curr_toc;
6645
6646 curr = tail;
6647 if (tail->_cooked_size)
6648 total = tail->_cooked_size;
6649 else
6650 total = tail->_raw_size;
6651 big_sec = total >= stub_group_size;
6652 curr_toc = htab->stub_group[tail->id].toc_off;
6653
6654 while ((prev = PREV_SEC (curr)) != NULL
6655 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM		 6656 < stub_group_size)
6657 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 6658 curr = prev;
6659
6660 /* OK, the size from the start of CURR to the end is less
6661 than stub_group_size and thus can be handled by one stub
6662 section. (or the tail section is itself larger than
6663 stub_group_size, in which case we may be toast.) We
6664 should really be keeping track of the total size of stubs
6665 added here, as stubs contribute to the final output
6666 section size. That's a little tricky, and this way will
6667 only break if stubs added make the total size more than
6668 2^25, ie. for the default stub_group_size, if stubs total
6669 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6670 do
721956f4
AM		 6671 {
6672 prev = PREV_SEC (tail);
734b6cf9 6673 /* Set up this stub group. */
721956f4
AM		 6674 htab->stub_group[tail->id].link_sec = curr;
6675 }
734b6cf9
AM		 6676 while (tail != curr && (tail = prev) != NULL);
6677
6678 /* But wait, there's more! Input sections up to stub_group_size
6679 bytes before the stub section can be handled by it too.
6680 Don't do this if we have a really large section after the
6681 stubs, as adding more stubs increases the chance that
6682 branches may not reach into the stub section. */
6683 if (!stubs_always_before_branch && !big_sec)
6684 {
6685 total = 0;
6686 while (prev != NULL
6687 && ((total += tail->output_offset - prev->output_offset)
6688 < stub_group_size)
6689 && htab->stub_group[prev->id].toc_off == curr_toc)
6690 {
6691 tail = prev;
6692 prev = PREV_SEC (tail);
6693 htab->stub_group[tail->id].link_sec = curr;
6694 }
6695 }
6696 tail = prev;
721956f4
AM		 6697 }
6698 }
734b6cf9
AM		 6699 while (list-- != htab->input_list);
6700 free (htab->input_list);
721956f4
AM		 6701#undef PREV_SEC
6702}
6703
721956f4
AM		 6704/* Determine and set the size of the stub section for a final link.
6705
6706 The basic idea here is to examine all the relocations looking for
6707 PC-relative calls to a target that is unreachable with a "bl"
6708 instruction. */
6709
b34976b6 6710bfd_boolean
4ce794b7 6711ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 6712 struct bfd_link_info *info,
6713 bfd_signed_vma group_size,
6714 asection *(*add_stub_section) (const char *, asection *),
6715 void (*layout_sections_again) (void))
721956f4
AM		 6716{
6717 bfd_size_type stub_group_size;
b34976b6 6718 bfd_boolean stubs_always_before_branch;
721956f4
AM		 6719 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6720
6721 /* Stash our params away. */
721956f4
AM		 6722 htab->add_stub_section = add_stub_section;
6723 htab->layout_sections_again = layout_sections_again;
6724 stubs_always_before_branch = group_size < 0;
6725 if (group_size < 0)
6726 stub_group_size = -group_size;
6727 else
6728 stub_group_size = group_size;
6729 if (stub_group_size == 1)
6730 {
6731 /* Default values. */
58ac9f71
AM		 6732 if (stubs_always_before_branch)
6733 {
6734 stub_group_size = 0x1e00000;
6735 if (htab->has_14bit_branch)
6736 stub_group_size = 0x7800;
6737 }
6738 else
6739 {
6740 stub_group_size = 0x1c00000;
6741 if (htab->has_14bit_branch)
6742 stub_group_size = 0x7000;
6743 }
721956f4
AM		 6744 }
6745
6746 group_sections (htab, stub_group_size, stubs_always_before_branch);
6747
721956f4
AM		 6748 while (1)
6749 {
6750 bfd *input_bfd;
6751 unsigned int bfd_indx;
6752 asection *stub_sec;
b34976b6 6753 bfd_boolean stub_changed;
721956f4
AM		 6754
6755 htab->stub_iteration += 1;
b34976b6 6756 stub_changed = FALSE;
721956f4
AM		 6757
6758 for (input_bfd = info->input_bfds, bfd_indx = 0;
6759 input_bfd != NULL;
6760 input_bfd = input_bfd->link_next, bfd_indx++)
6761 {
6762 Elf_Internal_Shdr *symtab_hdr;
6763 asection *section;
6cdc0ccc 6764 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM		 6765
6766 /* We'll need the symbol table in a second. */
6767 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6768 if (symtab_hdr->sh_info == 0)
6769 continue;
6770
721956f4
AM		 6771 /* Walk over each section attached to the input bfd. */
6772 for (section = input_bfd->sections;
6773 section != NULL;
6774 section = section->next)
6775 {
721956f4 6776 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 6777
6778 /* If there aren't any relocs, then there's nothing more
6779 to do. */
6780 if ((section->flags & SEC_RELOC) == 0
6781 || section->reloc_count == 0)
6782 continue;
6783
6784 /* If this section is a link-once section that will be
6785 discarded, then don't create any stubs. */
6786 if (section->output_section == NULL
6787 || section->output_section->owner != output_bfd)
6788 continue;
6789
1e2f5b6e
AM		 6790 /* Get the relocs. */
6791 internal_relocs
4ce794b7 6792 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 6793 info->keep_memory);
721956f4 6794 if (internal_relocs == NULL)
1e2f5b6e 6795 goto error_ret_free_local;
721956f4
AM		 6796
6797 /* Now examine each relocation. */
6798 irela = internal_relocs;
6799 irelaend = irela + section->reloc_count;
6800 for (; irela < irelaend; irela++)
6801 {
4ce794b7
AM		 6802 enum elf_ppc64_reloc_type r_type;
6803 unsigned int r_indx;
721956f4
AM		 6804 enum ppc_stub_type stub_type;
6805 struct ppc_stub_hash_entry *stub_entry;
6806 asection *sym_sec;
6807 bfd_vma sym_value;
6808 bfd_vma destination;
6809 struct ppc_link_hash_entry *hash;
411e1bfb
AM		 6810 struct elf_link_hash_entry *h;
6811 Elf_Internal_Sym *sym;
721956f4
AM		 6812 char *stub_name;
6813 const asection *id_sec;
6814
6815 r_type = ELF64_R_TYPE (irela->r_info);
6816 r_indx = ELF64_R_SYM (irela->r_info);
6817
4ce794b7 6818 if (r_type >= R_PPC64_max)
721956f4
AM		 6819 {
6820 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 6821 goto error_ret_free_internal;
721956f4
AM		 6822 }
6823
6824 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 6825 if (r_type != R_PPC64_REL24
6826 && r_type != R_PPC64_REL14
6827 && r_type != R_PPC64_REL14_BRTAKEN
6828 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 6829 continue;
6830
6831 /* Now determine the call target, its name, value,
6832 section. */
721956f4 6833 destination = 0;
411e1bfb
AM		 6834 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6835 r_indx, input_bfd))
6836 goto error_ret_free_internal;
6837 hash = (struct ppc_link_hash_entry *) h;
6838
6839 if (hash == NULL)
721956f4
AM		 6840 {
6841 /* It's a local symbol. */
411e1bfb 6842 sym_value = sym->st_value;
721956f4
AM		 6843 destination = (sym_value + irela->r_addend
6844 + sym_sec->output_offset
6845 + sym_sec->output_section->vma);
6846 }
6847 else
6848 {
6849 /* It's an external symbol. */
411e1bfb 6850 sym_value = 0;
721956f4
AM		 6851 if (hash->elf.root.type == bfd_link_hash_defined
6852 || hash->elf.root.type == bfd_link_hash_defweak)
6853 {
721956f4
AM		 6854 sym_value = hash->elf.root.u.def.value;
6855 if (sym_sec->output_section != NULL)
6856 destination = (sym_value + irela->r_addend
6857 + sym_sec->output_offset
6858 + sym_sec->output_section->vma);
6859 }
6860 else if (hash->elf.root.type == bfd_link_hash_undefweak)
6861 ;
6862 else if (hash->elf.root.type == bfd_link_hash_undefined)
6863 ;
6864 else
6865 {
6866 bfd_set_error (bfd_error_bad_value);
6867 goto error_ret_free_internal;
6868 }
6869 }
6870
6871 /* Determine what (if any) linker stub is needed. */
6872 stub_type = ppc_type_of_stub (section, irela, &hash,
6873 destination);
ad8e1ba5
AM		 6874
6875 if (stub_type != ppc_stub_plt_call)
6876 {
6877 /* Check whether we need a TOC adjusting stub.
6878 Since the linker pastes together pieces from
6879 different object files when creating the
6880 _init and _fini functions, it may be that a
6881 call to what looks like a local sym is in
6882 fact a call needing a TOC adjustment. */
6883 if (sym_sec != NULL
6884 && sym_sec->output_section != NULL
6885 && (htab->stub_group[sym_sec->id].toc_off
9b5ecbd0
AM		 6886 != htab->stub_group[section->id].toc_off)
6887 && sym_sec->has_gp_reloc
6888 && section->has_gp_reloc)
ad8e1ba5
AM		 6889 stub_type = ppc_stub_long_branch_r2off;
6890 }
6891
721956f4
AM		 6892 if (stub_type == ppc_stub_none)
6893 continue;
6894
411e1bfb
AM		 6895 /* __tls_get_addr calls might be eliminated. */
6896 if (stub_type != ppc_stub_plt_call
6897 && hash != NULL
6898 && &hash->elf == htab->tls_get_addr
6899 && section->has_tls_reloc
6900 && irela != internal_relocs)
6901 {
6902 /* Get tls info. */
e7b938ca 6903 char *tls_mask;
411e1bfb 6904
e7b938ca 6905 if (!get_tls_mask (&tls_mask, &local_syms,
411e1bfb
AM		 6906 irela - 1, input_bfd))
6907 goto error_ret_free_internal;
e7b938ca 6908 if (*tls_mask != 0)
411e1bfb
AM		 6909 continue;
6910 }
6911
721956f4
AM		 6912 /* Support for grouping stub sections. */
6913 id_sec = htab->stub_group[section->id].link_sec;
6914
6915 /* Get the name of this stub. */
6916 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
6917 if (!stub_name)
6918 goto error_ret_free_internal;
6919
6920 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 6921 stub_name, FALSE, FALSE);
721956f4
AM		 6922 if (stub_entry != NULL)
6923 {
6924 /* The proper stub has already been created. */
6925 free (stub_name);
6926 continue;
6927 }
6928
6929 stub_entry = ppc_add_stub (stub_name, section, htab);
6930 if (stub_entry == NULL)
6931 {
6932 free (stub_name);
6cdc0ccc
AM		 6933 error_ret_free_internal:
6934 if (elf_section_data (section)->relocs == NULL)
6935 free (internal_relocs);
6936 error_ret_free_local:
6937 if (local_syms != NULL
6938 && (symtab_hdr->contents
6939 != (unsigned char *) local_syms))
6940 free (local_syms);
b34976b6 6941 return FALSE;
721956f4
AM		 6942 }
6943
ad8e1ba5 6944 stub_entry->stub_type = stub_type;
721956f4
AM		 6945 stub_entry->target_value = sym_value;
6946 stub_entry->target_section = sym_sec;
721956f4 6947 stub_entry->h = hash;
411e1bfb 6948 stub_entry->addend = irela->r_addend;
b34976b6 6949 stub_changed = TRUE;
721956f4
AM		 6950 }
6951
6952 /* We're done with the internal relocs, free them. */
6cdc0ccc 6953 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 6954 free (internal_relocs);
721956f4 6955 }
6cdc0ccc
AM		 6956
6957 if (local_syms != NULL
6958 && symtab_hdr->contents != (unsigned char *) local_syms)
6959 {
6960 if (!info->keep_memory)
6961 free (local_syms);
6962 else
6963 symtab_hdr->contents = (unsigned char *) local_syms;
6964 }
721956f4
AM		 6965 }
6966
6967 if (!stub_changed)
6968 break;
6969
6970 /* OK, we've added some stubs. Find out the new size of the
6971 stub sections. */
6972 for (stub_sec = htab->stub_bfd->sections;
6973 stub_sec != NULL;
6974 stub_sec = stub_sec->next)
e717da7e
AM		 6975 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
6976 {
6977 stub_sec->_raw_size = 0;
6978 stub_sec->_cooked_size = 0;
6979 }
4ce794b7
AM		 6980 htab->brlt->_raw_size = 0;
6981 htab->brlt->_cooked_size = 0;
721956f4
AM		 6982
6983 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab);
6984
6985 /* Ask the linker to do its stuff. */
6986 (*htab->layout_sections_again) ();
6987 }
6988
afbe61cf
AM		 6989 /* It would be nice to strip .branch_lt from the output if the
6990 section is empty, but it's too late. If we strip sections here,
6991 the dynamic symbol table is corrupted since the section symbol
6992 for the stripped section isn't written. */
721956f4 6993
b34976b6 6994 return TRUE;
721956f4
AM		 6995}
6996
6997/* Called after we have determined section placement. If sections
805fc799 6998 move, we'll be called again. Provide a value for TOCstart. */
721956f4 6999
805fc799 7000bfd_vma
4ce794b7 7001ppc64_elf_toc (bfd *obfd)
721956f4 7002{
805fc799
AM		 7003 asection *s;
7004 bfd_vma TOCstart;
721956f4 7005
805fc799
AM		 7006 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
7007 order. The TOC starts where the first of these sections starts. */
7008 s = bfd_get_section_by_name (obfd, ".got");
7009 if (s == NULL)
7010 s = bfd_get_section_by_name (obfd, ".toc");
7011 if (s == NULL)
7012 s = bfd_get_section_by_name (obfd, ".tocbss");
7013 if (s == NULL)
7014 s = bfd_get_section_by_name (obfd, ".plt");
7015 if (s == NULL)
7016 {
7017 /* This may happen for
7018 o references to TOC base (SYM@toc / TOC[tc0]) without a
7019 .toc directive
7020 o bad linker script
7021 o --gc-sections and empty TOC sections
7022
7023 FIXME: Warn user? */
7024
7025 /* Look for a likely section. We probably won't even be
7026 using TOCstart. */
7027 for (s = obfd->sections; s != NULL; s = s->next)
7028 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
7029 == (SEC_ALLOC | SEC_SMALL_DATA))
7030 break;
721956f4 7031 if (s == NULL)
805fc799
AM		 7032 for (s = obfd->sections; s != NULL; s = s->next)
7033 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
7034 == (SEC_ALLOC | SEC_SMALL_DATA))
7035 break;
721956f4 7036 if (s == NULL)
805fc799
AM		 7037 for (s = obfd->sections; s != NULL; s = s->next)
7038 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
7039 break;
721956f4 7040 if (s == NULL)
805fc799
AM		 7041 for (s = obfd->sections; s != NULL; s = s->next)
7042 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
7043 break;
7044 }
721956f4 7045
805fc799
AM		 7046 TOCstart = 0;
7047 if (s != NULL)
7048 TOCstart = s->output_section->vma + s->output_offset;
721956f4 7049
805fc799 7050 return TOCstart;
721956f4
AM		 7051}
7052
7053/* Build all the stubs associated with the current output file.
7054 The stubs are kept in a hash table attached to the main linker
7055 hash table. This function is called via gldelf64ppc_finish. */
7056
b34976b6 7057bfd_boolean
4ce794b7
AM		 7058ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
7059 struct bfd_link_info *info,
7060 char **stats)
5d1634d7
AM		 7061{
7062 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 7063 asection *stub_sec;
5d1634d7 7064 bfd_byte *p;
e717da7e 7065 int stub_sec_count = 0;
5d1634d7 7066
ad8e1ba5 7067 htab->emit_stub_syms = emit_stub_syms;
721956f4
AM		 7068 for (stub_sec = htab->stub_bfd->sections;
7069 stub_sec != NULL;
7070 stub_sec = stub_sec->next)
e717da7e
AM		 7071 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7072 {
7073 bfd_size_type size;
721956f4 7074
e717da7e
AM		 7075 /* Allocate memory to hold the linker stubs. */
7076 size = stub_sec->_raw_size;
7077 if (size != 0)
7078 {
7079 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
7080 if (stub_sec->contents == NULL)
7081 return FALSE;
7082 }
7083 stub_sec->_cooked_size = 0;
7084 }
5d1634d7 7085
4ce794b7 7086 if (htab->plt != NULL)
5d1634d7 7087 {
9f951329 7088 unsigned int indx;
ad8e1ba5 7089 bfd_vma plt0;
9f951329 7090
721956f4 7091 /* Build the .glink plt call stub. */
4ce794b7
AM		 7092 plt0 = (htab->plt->output_section->vma
7093 + htab->plt->output_offset
7094 - (htab->glink->output_section->vma
7095 + htab->glink->output_offset
ad8e1ba5
AM		 7096 + GLINK_CALL_STUB_SIZE));
7097 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 7098 {
ad8e1ba5
AM		 7099 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
7100 bfd_set_error (bfd_error_bad_value);
7101 return FALSE;
721956f4 7102 }
721956f4 7103
97b639ba
AM		 7104 if (htab->emit_stub_syms)
7105 {
7106 struct elf_link_hash_entry *h;
7107 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
7108 if (h == NULL)
7109 return FALSE;
7110 if (h->root.type == bfd_link_hash_new)
7111 {
7112 h->root.type = bfd_link_hash_defined;
7113 h->root.u.def.section = htab->glink;
7114 h->root.u.def.value = 0;
7115 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
7116 | ELF_LINK_HASH_DEF_REGULAR
7117 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
7118 | ELF_LINK_FORCED_LOCAL);
7119 }
7120 }
4ce794b7
AM		 7121 p = htab->glink->contents;
7122 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 7123 p += 4;
4ce794b7 7124 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 7125 p += 4;
4ce794b7 7126 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 7127 p += 4;
4ce794b7 7128 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7129 p += 4;
4ce794b7 7130 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 7131 p += 4;
4ce794b7 7132 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 7133 p += 4;
4ce794b7 7134 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 7135 p += 4;
4ce794b7 7136 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7137 p += 4;
4ce794b7 7138 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 7139 p += 4;
4ce794b7 7140 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 7141 p += 4;
4ce794b7 7142 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 7143 p += 4;
4ce794b7 7144 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 7145 p += 4;
4ce794b7 7146 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 7147 p += 4;
4ce794b7 7148 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 7149 p += 4;
4ce794b7 7150 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 7151 p += 4;
4ce794b7 7152 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM		 7153 p += 4;
7154
9f951329
AM		 7155 /* Build the .glink lazy link call stubs. */
7156 indx = 0;
4ce794b7 7157 while (p < htab->glink->contents + htab->glink->_raw_size)
9f951329
AM		 7158 {
7159 if (indx < 0x8000)
7160 {
4ce794b7 7161 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 7162 p += 4;
7163 }
7164 else
7165 {
4ce794b7 7166 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 7167 p += 4;
4ce794b7 7168 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 7169 p += 4;
7170 }
4ce794b7
AM		 7171 bfd_put_32 (htab->glink->owner,
7172 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 7173 indx++;
9f951329
AM		 7174 p += 4;
7175 }
4ce794b7 7176 htab->glink->_cooked_size = p - htab->glink->contents;
5d1634d7 7177 }
5d1634d7 7178
4ce794b7 7179 if (htab->brlt->_raw_size != 0)
721956f4 7180 {
4ce794b7
AM		 7181 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
7182 htab->brlt->_raw_size);
7183 if (htab->brlt->contents == NULL)
b34976b6 7184 return FALSE;
721956f4 7185 }
5d1634d7 7186
721956f4
AM		 7187 /* Build the stubs as directed by the stub hash table. */
7188 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 7189
721956f4
AM		 7190 for (stub_sec = htab->stub_bfd->sections;
7191 stub_sec != NULL;
7192 stub_sec = stub_sec->next)
e717da7e
AM		 7193 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7194 {
7195 stub_sec_count += 1;
7196 if (stub_sec->_raw_size != stub_sec->_cooked_size)
7197 break;
7198 }
5d1634d7 7199
721956f4 7200 if (stub_sec != NULL
4ce794b7 7201 || htab->glink->_raw_size != htab->glink->_cooked_size)
5d1634d7 7202 {
b34976b6 7203 htab->stub_error = TRUE;
721956f4 7204 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 7205 }
721956f4 7206
d2a300cf
AM		 7207 if (htab->stub_error)
7208 return FALSE;
7209
7210 if (stats != NULL)
7211 {
7212 *stats = bfd_malloc (500);
7213 if (*stats == NULL)
7214 return FALSE;
7215
7216 sprintf (*stats, _("linker stubs in %u groups\n"
7217 " branch %lu\n"
7218 " toc adjust %lu\n"
7219 " long branch %lu\n"
7220 " long toc adj %lu\n"
7221 " plt call %lu"),
e717da7e 7222 stub_sec_count,
4ce794b7
AM		 7223 htab->stub_count[ppc_stub_long_branch - 1],
7224 htab->stub_count[ppc_stub_long_branch_r2off - 1],
7225 htab->stub_count[ppc_stub_plt_branch - 1],
7226 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
7227 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 7228 }
7229 return TRUE;
5bd4f169
AM		 7230}
7231
5bd4f169
AM		 7232/* The RELOCATE_SECTION function is called by the ELF backend linker
7233 to handle the relocations for a section.
7234
7235 The relocs are always passed as Rela structures; if the section
7236 actually uses Rel structures, the r_addend field will always be
7237 zero.
7238
7239 This function is responsible for adjust the section contents as
7240 necessary, and (if using Rela relocs and generating a
1049f94e 7241 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 7242 necessary.
7243
7244 This function does not have to worry about setting the reloc
7245 address or the reloc symbol index.
7246
7247 LOCAL_SYMS is a pointer to the swapped in local symbols.
7248
7249 LOCAL_SECTIONS is an array giving the section in the input file
7250 corresponding to the st_shndx field of each local symbol.
7251
7252 The global hash table entry for the global symbols can be found
7253 via elf_sym_hashes (input_bfd).
7254
1049f94e 7255 When generating relocatable output, this function must handle
5bd4f169
AM		 7256 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7257 going to be the section symbol corresponding to the output
7258 section, which means that the addend must be adjusted
7259 accordingly. */
7260
b34976b6 7261static bfd_boolean
4ce794b7
AM		 7262ppc64_elf_relocate_section (bfd *output_bfd,
7263 struct bfd_link_info *info,
7264 bfd *input_bfd,
7265 asection *input_section,
7266 bfd_byte *contents,
7267 Elf_Internal_Rela *relocs,
7268 Elf_Internal_Sym *local_syms,
7269 asection **local_sections)
5bd4f169 7270{
65f38f15 7271 struct ppc_link_hash_table *htab;
5bd4f169
AM		 7272 Elf_Internal_Shdr *symtab_hdr;
7273 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 7274 Elf_Internal_Rela *rel;
7275 Elf_Internal_Rela *relend;
411e1bfb
AM		 7276 Elf_Internal_Rela outrel;
7277 bfd_byte *loc;
411e1bfb 7278 struct got_entry **local_got_ents;
5bd4f169 7279 bfd_vma TOCstart;
b34976b6
AM		 7280 bfd_boolean ret = TRUE;
7281 bfd_boolean is_opd;
96e0dda4 7282 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 7283 bfd_boolean is_power4 = FALSE;
5bd4f169 7284
1049f94e 7285 if (info->relocatable)
b34976b6 7286 return TRUE;
b491616a 7287
65f38f15 7288 /* Initialize howto table if needed. */
5bd4f169 7289 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 7290 ppc_howto_init ();
7291
65f38f15 7292 htab = ppc_hash_table (info);
411e1bfb 7293 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 7294 TOCstart = elf_gp (output_bfd);
5bd4f169
AM		 7295 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
7296 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 7297 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 7298
5bd4f169
AM		 7299 rel = relocs;
7300 relend = relocs + input_section->reloc_count;
7301 for (; rel < relend; rel++)
7302 {
04c9666a 7303 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM		 7304 bfd_vma addend;
7305 bfd_reloc_status_type r;
7306 Elf_Internal_Sym *sym;
7307 asection *sec;
7308 struct elf_link_hash_entry *h;
721956f4 7309 struct elf_link_hash_entry *fdh;
5bd4f169 7310 const char *sym_name;
5bd4f169 7311 unsigned long r_symndx;
951fd09b 7312 char tls_mask, tls_gd, tls_type;
5bd4f169 7313 bfd_vma relocation;
b34976b6
AM		 7314 bfd_boolean unresolved_reloc;
7315 bfd_boolean warned;
50bc7936 7316 unsigned long insn, mask;
721956f4
AM		 7317 struct ppc_stub_hash_entry *stub_entry;
7318 bfd_vma max_br_offset;
7319 bfd_vma from;
5bd4f169 7320
4ce794b7 7321 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 7322 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM		 7323
7324 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
7325 symbol of the previous ADDR64 reloc. The symbol gives us the
7326 proper TOC base to use. */
7327 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
7328 && rel != relocs
7329 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
7330 && is_opd)
7331 r_symndx = ELF64_R_SYM (rel[-1].r_info);
7332
4ce794b7
AM		 7333 sym = NULL;
7334 sec = NULL;
7335 h = NULL;
7336 sym_name = NULL;
b34976b6
AM		 7337 unresolved_reloc = FALSE;
7338 warned = FALSE;
65f38f15 7339
0b13192e 7340 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 7341 {
7342 /* It's a local symbol. */
7343 sym = local_syms + r_symndx;
7344 sec = local_sections[r_symndx];
411e1bfb 7345 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
f8df10f4 7346 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
1e2f5b6e
AM		 7347 if (elf_section_data (sec) != NULL)
7348 {
7349 long *opd_sym_adjust;
7350
f0abc2a1 7351 opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust;
1e2f5b6e
AM		 7352 if (opd_sym_adjust != NULL && sym->st_value % 24 == 0)
7353 relocation += opd_sym_adjust[sym->st_value / 24];
7354 }
5bd4f169
AM		 7355 }
7356 else
7357 {
560e09e9
NC		 7358 RELOC_FOR_GLOBAL_SYMBOL (h, sym_hashes, r_symndx,
7359 symtab_hdr, relocation, sec,
7360 unresolved_reloc, info,
7361 warned);
5bd4f169 7362 sym_name = h->root.root.string;
5bd4f169
AM		 7363 }
7364
951fd09b
AM		 7365 /* TLS optimizations. Replace instruction sequences and relocs
7366 based on information we collected in tls_optimize. We edit
7367 RELOCS so that --emit-relocs will output something sensible
7368 for the final instruction stream. */
7369 tls_mask = 0;
7370 tls_gd = 0;
d881513a 7371 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 7372 {
7373 if (h != NULL)
e7b938ca 7374 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
411e1bfb
AM		 7375 else if (local_got_ents != NULL)
7376 {
e7b938ca
AM		 7377 char *lgot_masks;
7378 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
7379 tls_mask = lgot_masks[r_symndx];
411e1bfb
AM		 7380 }
7381 }
7382
7383 /* Ensure reloc mapping code below stays sane. */
7384 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
7385 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
7386 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
7387 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
7388 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
7389 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
7390 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
7391 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
7392 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
7393 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
7394 abort ();
7395 switch (r_type)
7396 {
7397 default:
411e1bfb
AM		 7398 break;
7399
7400 case R_PPC64_TOC16:
7401 case R_PPC64_TOC16_LO:
7402 case R_PPC64_TOC16_DS:
7403 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 7404 {
7405 /* Check for toc tls entries. */
7406 char *toc_tls;
951fd09b 7407 int retval;
411e1bfb 7408
e7b938ca 7409 retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd);
951fd09b 7410 if (retval == 0)
411e1bfb
AM		 7411 return FALSE;
7412
7413 if (toc_tls)
7414 {
951fd09b 7415 tls_mask = *toc_tls;
411e1bfb
AM		 7416 if (r_type == R_PPC64_TOC16_DS
7417 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 7418 {
7419 if (tls_mask != 0
7420 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
7421 goto toctprel;
7422 }
411e1bfb 7423 else
951fd09b
AM		 7424 {
7425 /* If we found a GD reloc pair, then we might be
7426 doing a GD->IE transition. */
7427 if (retval == 2)
7428 {
7429 tls_gd = TLS_TPRELGD;
7430 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7431 goto tls_get_addr_check;
7432 }
7433 else if (retval == 3)
7434 {
7435 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7436 goto tls_get_addr_check;
7437 }
7438 }
411e1bfb
AM		 7439 }
7440 }
7441 break;
7442
7443 case R_PPC64_GOT_TPREL16_DS:
7444 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 7445 if (tls_mask != 0
7446 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 7447 {
81407a69 7448 toctprel:
411e1bfb
AM		 7449 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
7450 insn &= 31 << 21;
7451 insn |= 0x3c0d0000; /* addis 0,13,0 */
7452 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
7453 r_type = R_PPC64_TPREL16_HA;
7454 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7455 }
7456 break;
7457
7458 case R_PPC64_TLS:
951fd09b 7459 if (tls_mask == 0)
411e1bfb
AM		 7460 {
7461 /* Check for toc tls entries. */
7462 char *toc_tls;
7463
e7b938ca 7464 if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd))
411e1bfb
AM		 7465 return FALSE;
7466
7467 if (toc_tls)
951fd09b 7468 tls_mask = *toc_tls;
411e1bfb 7469 }
951fd09b
AM		 7470 if (tls_mask != 0
7471 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 7472 {
50bc7936 7473 bfd_vma rtra;
411e1bfb 7474 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 7475 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 7476 == ((31 << 26) | (13 << 11)))
7477 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 7478 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 7479 == ((31 << 26) | (13 << 16)))
7480 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
7481 else
7482 abort ();
7483 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
7484 /* add -> addi. */
7485 insn = 14 << 26;
7486 else if ((insn & (31 << 1)) == 23 << 1
7487 && ((insn & (31 << 6)) < 14 << 6
7488 || ((insn & (31 << 6)) >= 16 << 6
7489 && (insn & (31 << 6)) < 24 << 6)))
7490 /* load and store indexed -> dform. */
7491 insn = (32 | ((insn >> 6) & 31)) << 26;
7492 else if ((insn & (31 << 1)) == 21 << 1
7493 && (insn & (0x1a << 6)) == 0)
7494 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7495 insn = (((58 | ((insn >> 6) & 4)) << 26)
7496 | ((insn >> 6) & 1));
7497 else if ((insn & (31 << 1)) == 21 << 1
7498 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
7499 /* lwax -> lwa. */
7500 insn = (58 << 26) | 2;
7501 else
7502 abort ();
7503 insn |= rtra;
7504 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7505 r_type = R_PPC64_TPREL16_LO;
7506 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7507 /* Was PPC64_TLS which sits on insn boundary, now
7508 PPC64_TPREL16_LO which is at insn+2. */
7509 rel->r_offset += 2;
7510 }
7511 break;
7512
411e1bfb
AM		 7513 case R_PPC64_GOT_TLSGD16_HI:
7514 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 7515 tls_gd = TLS_TPRELGD;
7516 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7517 goto tls_gdld_hi;
7518 break;
7519
411e1bfb
AM		 7520 case R_PPC64_GOT_TLSLD16_HI:
7521 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7522 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 7523 {
951fd09b
AM		 7524 tls_gdld_hi:
7525 if ((tls_mask & tls_gd) != 0)
7526 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7527 + R_PPC64_GOT_TPREL16_DS);
7528 else
411e1bfb 7529 {
951fd09b
AM		 7530 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7531 rel->r_offset -= 2;
7532 r_type = R_PPC64_NONE;
411e1bfb 7533 }
951fd09b 7534 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7535 }
7536 break;
7537
951fd09b
AM		 7538 case R_PPC64_GOT_TLSGD16:
7539 case R_PPC64_GOT_TLSGD16_LO:
7540 tls_gd = TLS_TPRELGD;
7541 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7542 goto tls_get_addr_check;
7543 break;
411e1bfb 7544
951fd09b
AM		 7545 case R_PPC64_GOT_TLSLD16:
7546 case R_PPC64_GOT_TLSLD16_LO:
7547 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7548 {
7549 tls_get_addr_check:
7550 if (rel + 1 < relend)
411e1bfb 7551 {
951fd09b
AM		 7552 enum elf_ppc64_reloc_type r_type2;
7553 unsigned long r_symndx2;
7554 struct elf_link_hash_entry *h2;
7555 bfd_vma insn1, insn2, insn3;
7556 bfd_vma offset;
7557
7558 /* The next instruction should be a call to
7559 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 7560 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM		 7561 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7562 if (r_symndx2 < symtab_hdr->sh_info
7563 || (r_type2 != R_PPC64_REL14
7564 && r_type2 != R_PPC64_REL14_BRTAKEN
7565 && r_type2 != R_PPC64_REL14_BRNTAKEN
7566 && r_type2 != R_PPC64_REL24))
7567 break;
7568
7569 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7570 while (h2->root.type == bfd_link_hash_indirect
7571 || h2->root.type == bfd_link_hash_warning)
7572 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
7573 if (h2 == NULL || h2 != htab->tls_get_addr)
7574 break;
7575
7576 /* OK, it checks out. Replace the call. */
7577 offset = rel[1].r_offset;
7578 insn1 = bfd_get_32 (output_bfd,
7579 contents + rel->r_offset - 2);
7580 insn3 = bfd_get_32 (output_bfd,
7581 contents + offset + 4);
7582 if ((tls_mask & tls_gd) != 0)
411e1bfb 7583 {
951fd09b
AM		 7584 /* IE */
7585 insn1 &= (1 << 26) - (1 << 2);
7586 insn1 |= 58 << 26; /* ld */
7587 insn2 = 0x7c636a14; /* add 3,3,13 */
7588 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
7589 if ((tls_mask & TLS_EXPLICIT) == 0)
7590 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7591 + R_PPC64_GOT_TPREL16_DS);
7592 else
7593 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
7594 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7595 }
7596 else
951fd09b
AM		 7597 {
7598 /* LE */
7599 insn1 = 0x3c6d0000; /* addis 3,13,0 */
7600 insn2 = 0x38630000; /* addi 3,3,0 */
7601 if (tls_gd == 0)
7602 {
7603 /* Was an LD reloc. */
7604 r_symndx = 0;
7605 rel->r_addend = htab->tls_sec->vma + DTP_OFFSET;
7606 rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET;
7607 }
7608 r_type = R_PPC64_TPREL16_HA;
7609 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7610 rel[1].r_info = ELF64_R_INFO (r_symndx,
7611 R_PPC64_TPREL16_LO);
7612 rel[1].r_offset += 2;
7613 }
7614 if (insn3 == NOP
7615 || insn3 == CROR_151515 || insn3 == CROR_313131)
7616 {
7617 insn3 = insn2;
7618 insn2 = NOP;
7619 rel[1].r_offset += 4;
7620 }
7621 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
7622 bfd_put_32 (output_bfd, insn2, contents + offset);
7623 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
7624 if (tls_gd == 0)
7625 {
7626 /* We changed the symbol on an LD reloc. Start over
ad8e1ba5 7627 in order to get h, sym, sec etc. right. */
951fd09b
AM		 7628 rel--;
7629 continue;
7630 }
411e1bfb 7631 }
411e1bfb 7632 }
411e1bfb
AM		 7633 break;
7634
7635 case R_PPC64_DTPMOD64:
951fd09b
AM		 7636 if (rel + 1 < relend
7637 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
7638 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 7639 {
951fd09b
AM		 7640 if ((tls_mask & TLS_GD) == 0)
7641 {
7642 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
7643 if ((tls_mask & TLS_TPRELGD) != 0)
7644 r_type = R_PPC64_TPREL64;
7645 else
7646 {
4ce794b7 7647 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 7648 r_type = R_PPC64_NONE;
7649 }
7650 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7651 }
7652 }
7653 else
7654 {
7655 if ((tls_mask & TLS_LD) == 0)
411e1bfb 7656 {
4ce794b7 7657 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 7658 r_type = R_PPC64_NONE;
951fd09b 7659 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 7660 }
411e1bfb
AM		 7661 }
7662 break;
7663
7664 case R_PPC64_TPREL64:
951fd09b 7665 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 7666 {
7667 r_type = R_PPC64_NONE;
7668 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7669 }
7670 break;
7671 }
7672
7673 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 7674 insn = 0;
65f38f15 7675 switch (r_type)
5bd4f169
AM		 7676 {
7677 default:
65f38f15 7678 break;
5bd4f169 7679
65f38f15
AM		 7680 /* Branch taken prediction relocations. */
7681 case R_PPC64_ADDR14_BRTAKEN:
7682 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 7683 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7684 /* Fall thru. */
65f38f15 7685
86c76c7b 7686 /* Branch not taken prediction relocations. */
65f38f15
AM		 7687 case R_PPC64_ADDR14_BRNTAKEN:
7688 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 7689 insn |= bfd_get_32 (output_bfd,
7690 contents + rel->r_offset) & ~(0x01 << 21);
96e0dda4
AM		 7691 if (is_power4)
7692 {
7693 /* Set 'a' bit. This is 0b00010 in BO field for branch
7694 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7695 for branch on CTR insns (BO == 1a00t or 1a01t). */
7696 if ((insn & (0x14 << 21)) == (0x04 << 21))
7697 insn |= 0x02 << 21;
7698 else if ((insn & (0x14 << 21)) == (0x10 << 21))
7699 insn |= 0x08 << 21;
7700 else
7701 break;
7702 }
65f38f15 7703 else
96e0dda4 7704 {
411e1bfb 7705 from = (rel->r_offset
805fc799
AM		 7706 + input_section->output_offset
7707 + input_section->output_section->vma);
7708
96e0dda4 7709 /* Invert 'y' bit if not the default. */
411e1bfb 7710 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
96e0dda4
AM		 7711 insn ^= 0x01 << 21;
7712 }
86c76c7b 7713
4ce794b7 7714 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
65f38f15 7715 break;
5bd4f169 7716
65f38f15 7717 case R_PPC64_REL24:
ad8e1ba5
AM		 7718 /* Calls to functions with a different TOC, such as calls to
7719 shared objects, need to alter the TOC pointer. This is
7720 done using a linkage stub. A REL24 branching to these
7721 linkage stubs needs to be followed by a nop, as the nop
7722 will be replaced with an instruction to restore the TOC
7723 base pointer. */
7724 if (((h != NULL
7725 && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL
7726 && fdh->plt.plist != NULL)
7727 || ((fdh = h, sec) != NULL
7728 && sec->output_section != NULL
7729 && (htab->stub_group[sec->id].toc_off
7730 != htab->stub_group[input_section->id].toc_off)))
721956f4 7731 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 7732 rel, htab)) != NULL
7733 && (stub_entry->stub_type == ppc_stub_plt_call
7734 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
7735 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 7736 {
b34976b6 7737 bfd_boolean can_plt_call = 0;
721956f4 7738
411e1bfb 7739 if (rel->r_offset + 8 <= input_section->_cooked_size)
41bd81ab 7740 {
411e1bfb 7741 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
721956f4
AM		 7742 if (insn == NOP
7743 || insn == CROR_151515 || insn == CROR_313131)
41bd81ab 7744 {
4ce794b7 7745 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 7746 contents + rel->r_offset + 4);
721956f4 7747 can_plt_call = 1;
41bd81ab 7748 }
5bd4f169 7749 }
721956f4
AM		 7750
7751 if (!can_plt_call)
7752 {
ad8e1ba5
AM		 7753 if (stub_entry->stub_type == ppc_stub_plt_call)
7754 {
7755 /* If this is a plain branch rather than a branch
7756 and link, don't require a nop. */
7757 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
7758 if ((insn & 1) == 0)
7759 can_plt_call = 1;
7760 }
6ab189d5
AM		 7761 else if (h != NULL
7762 && strcmp (h->root.root.string,
7763 ".__libc_start_main") == 0)
7764 {
7765 /* Allow crt1 branch to go via a toc adjusting stub. */
7766 can_plt_call = 1;
7767 }
ad8e1ba5
AM		 7768 else
7769 {
7770 if (strcmp (input_section->output_section->name,
7771 ".init") == 0
7772 || strcmp (input_section->output_section->name,
7773 ".fini") == 0)
7774 (*_bfd_error_handler)
7775 (_("%s(%s+0x%lx): automatic multiple TOCs "
7776 "not supported using your crt files; "
7777 "recompile with -mminimal-toc or upgrade gcc"),
7778 bfd_archive_filename (input_bfd),
7779 input_section->name,
7780 (long) rel->r_offset);
7781 else
7782 (*_bfd_error_handler)
7783 (_("%s(%s+0x%lx): sibling call optimization to `%s' "
7784 "does not allow automatic multiple TOCs; "
7785 "recompile with -mminimal-toc or "
7786 "-fno-optimize-sibling-calls, "
7787 "or make `%s' extern"),
7788 bfd_archive_filename (input_bfd),
7789 input_section->name,
7790 (long) rel->r_offset,
7791 sym_name,
7792 sym_name);
7793 bfd_set_error (bfd_error_bad_value);
7794 ret = FALSE;
7795 }
721956f4
AM		 7796 }
7797
7798 if (can_plt_call)
7799 {
7800 relocation = (stub_entry->stub_offset
7801 + stub_entry->stub_sec->output_offset
7802 + stub_entry->stub_sec->output_section->vma);
ad8e1ba5
AM		 7803 if (stub_entry->stub_type == ppc_stub_plt_call)
7804 unresolved_reloc = FALSE;
721956f4 7805 }
5bd4f169 7806 }
e86ce104
AM		 7807
7808 if (h != NULL
7809 && h->root.type == bfd_link_hash_undefweak
721956f4 7810 && relocation == 0
411e1bfb 7811 && rel->r_addend == 0)
e86ce104 7812 {
721956f4
AM		 7813 /* Tweak calls to undefined weak functions to point at a
7814 blr. We can thus call a weak function without first
7815 checking whether the function is defined. We have a
7816 blr at the end of .sfpr. */
805fc799 7817 BFD_ASSERT (htab->sfpr->_raw_size != 0);
721956f4
AM		 7818 relocation = (htab->sfpr->_raw_size - 4
7819 + htab->sfpr->output_offset
7820 + htab->sfpr->output_section->vma);
411e1bfb 7821 from = (rel->r_offset
721956f4
AM		 7822 + input_section->output_offset
7823 + input_section->output_section->vma);
805fc799 7824
721956f4
AM		 7825 /* But let's not be silly about it. If the blr isn't in
7826 reach, just go to the next instruction. */
805fc799
AM		 7827 if (relocation - from + (1 << 25) >= (1 << 26)
7828 || htab->sfpr->_raw_size == 0)
721956f4 7829 relocation = from + 4;
e86ce104 7830 }
65f38f15
AM		 7831 break;
7832 }
5bd4f169 7833
65f38f15 7834 /* Set `addend'. */
411e1bfb
AM		 7835 tls_type = 0;
7836 addend = rel->r_addend;
65f38f15
AM		 7837 switch (r_type)
7838 {
7839 default:
7840 (*_bfd_error_handler)
7841 (_("%s: unknown relocation type %d for symbol %s"),
7842 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
5bd4f169 7843
65f38f15 7844 bfd_set_error (bfd_error_bad_value);
b34976b6 7845 ret = FALSE;
65f38f15 7846 continue;
5bd4f169 7847
65f38f15 7848 case R_PPC64_NONE:
411e1bfb 7849 case R_PPC64_TLS:
04c9666a
AM		 7850 case R_PPC64_GNU_VTINHERIT:
7851 case R_PPC64_GNU_VTENTRY:
65f38f15 7852 continue;
5bd4f169
AM		 7853
7854 /* GOT16 relocations. Like an ADDR16 using the symbol's
7855 address in the GOT as relocation value instead of the
411e1bfb 7856 symbol's value itself. Also, create a GOT entry for the
5bd4f169 7857 symbol and put the symbol value there. */
411e1bfb
AM		 7858 case R_PPC64_GOT_TLSGD16:
7859 case R_PPC64_GOT_TLSGD16_LO:
7860 case R_PPC64_GOT_TLSGD16_HI:
7861 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 7862 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 7863 goto dogot;
7864
7865 case R_PPC64_GOT_TLSLD16:
7866 case R_PPC64_GOT_TLSLD16_LO:
7867 case R_PPC64_GOT_TLSLD16_HI:
7868 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7869 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 7870 goto dogot;
7871
7872 case R_PPC64_GOT_TPREL16_DS:
7873 case R_PPC64_GOT_TPREL16_LO_DS:
7874 case R_PPC64_GOT_TPREL16_HI:
7875 case R_PPC64_GOT_TPREL16_HA:
7876 tls_type = TLS_TLS | TLS_TPREL;
7877 goto dogot;
7878
7879 case R_PPC64_GOT_DTPREL16_DS:
7880 case R_PPC64_GOT_DTPREL16_LO_DS:
7881 case R_PPC64_GOT_DTPREL16_HI:
7882 case R_PPC64_GOT_DTPREL16_HA:
7883 tls_type = TLS_TLS | TLS_DTPREL;
7884 goto dogot;
7885
65f38f15
AM		 7886 case R_PPC64_GOT16:
7887 case R_PPC64_GOT16_LO:
7888 case R_PPC64_GOT16_HI:
7889 case R_PPC64_GOT16_HA:
7890 case R_PPC64_GOT16_DS:
7891 case R_PPC64_GOT16_LO_DS:
411e1bfb 7892 dogot:
5bd4f169
AM		 7893 {
7894 /* Relocation is to the entry for this symbol in the global
7895 offset table. */
e717da7e 7896 asection *got;
d881513a 7897 bfd_vma *offp;
5bd4f169 7898 bfd_vma off;
d881513a 7899 unsigned long indx = 0;
65f38f15 7900
d881513a
AM		 7901 if (tls_type == (TLS_TLS | TLS_LD)
7902 && (h == NULL
7903 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
e717da7e 7904 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 7905 else
5bd4f169 7906 {
d881513a 7907 struct got_entry *ent;
5bd4f169 7908
d881513a
AM		 7909 if (h != NULL)
7910 {
7911 bfd_boolean dyn = htab->elf.dynamic_sections_created;
f4656909 7912 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
d881513a 7913 || (info->shared
586119b3 7914 && SYMBOL_REFERENCES_LOCAL (info, h)))
d881513a
AM		 7915 /* This is actually a static link, or it is a
7916 -Bsymbolic link and the symbol is defined
7917 locally, or the symbol was forced to be local
7918 because of a version file. */
7919 ;
7920 else
7921 {
7922 indx = h->dynindx;
7923 unresolved_reloc = FALSE;
7924 }
7925 ent = h->got.glist;
7926 }
411e1bfb 7927 else
5bd4f169 7928 {
d881513a
AM		 7929 if (local_got_ents == NULL)
7930 abort ();
7931 ent = local_got_ents[r_symndx];
5bd4f169 7932 }
d881513a
AM		 7933
7934 for (; ent != NULL; ent = ent->next)
7935 if (ent->addend == rel->r_addend
e717da7e 7936 && ent->owner == input_bfd
d881513a
AM		 7937 && ent->tls_type == tls_type)
7938 break;
7939 if (ent == NULL)
7940 abort ();
7941 offp = &ent->got.offset;
5bd4f169 7942 }
411e1bfb 7943
e717da7e
AM		 7944 got = ppc64_elf_tdata (input_bfd)->got;
7945 if (got == NULL)
7946 abort ();
7947
411e1bfb
AM		 7948 /* The offset must always be a multiple of 8. We use the
7949 least significant bit to record whether we have already
7950 processed this entry. */
d881513a 7951 off = *offp;
411e1bfb
AM		 7952 if ((off & 1) != 0)
7953 off &= ~1;
5bd4f169
AM		 7954 else
7955 {
411e1bfb
AM		 7956 /* Generate relocs for the dynamic linker, except in
7957 the case of TLSLD where we'll use one entry per
7958 module. */
e717da7e
AM		 7959 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
7960
d881513a 7961 *offp = off | 1;
4e795f50
AM		 7962 if ((info->shared || indx != 0)
7963 && (h == NULL
7964 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7965 || h->root.type != bfd_link_hash_undefweak))
5bd4f169 7966 {
e717da7e
AM		 7967 outrel.r_offset = (got->output_section->vma
7968 + got->output_offset
411e1bfb 7969 + off);
81407a69 7970 outrel.r_addend = rel->r_addend;
d881513a 7971 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 7972 {
411e1bfb 7973 outrel.r_addend = 0;
e515b051 7974 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 7975 if (tls_type == (TLS_TLS | TLS_GD))
7976 {
e717da7e
AM		 7977 loc = relgot->contents;
7978 loc += (relgot->reloc_count++
d881513a
AM		 7979 * sizeof (Elf64_External_Rela));
7980 bfd_elf64_swap_reloca_out (output_bfd,
7981 &outrel, loc);
e515b051 7982 outrel.r_offset += 8;
81407a69 7983 outrel.r_addend = rel->r_addend;
d881513a
AM		 7984 outrel.r_info
7985 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 7986 }
411e1bfb 7987 }
951fd09b 7988 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 7989 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 7990 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 7991 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
7992 else if (indx == 0)
81407a69
AM		 7993 {
7994 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
7995
7996 /* Write the .got section contents for the sake
7997 of prelink. */
e717da7e 7998 loc = got->contents + off;
23fbd6fa
JJ		 7999 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
8000 loc);
81407a69 8001 }
411e1bfb
AM		 8002 else
8003 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 8004
8005 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 8006 {
8007 outrel.r_addend += relocation;
8008 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
8009 outrel.r_addend -= htab->tls_sec->vma;
8010 }
e717da7e
AM		 8011 loc = relgot->contents;
8012 loc += (relgot->reloc_count++
411e1bfb
AM		 8013 * sizeof (Elf64_External_Rela));
8014 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8015 }
8016
ad8e1ba5 8017 /* Init the .got section contents here if we're not
81407a69 8018 emitting a reloc. */
d881513a 8019 else
411e1bfb 8020 {
d881513a 8021 relocation += rel->r_addend;
7b609f53
AM		 8022 if (tls_type == (TLS_TLS | TLS_LD))
8023 relocation = 1;
8024 else if (tls_type != 0)
411e1bfb
AM		 8025 {
8026 relocation -= htab->tls_sec->vma + DTP_OFFSET;
7b609f53 8027 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 8028 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 8029
7b609f53
AM		 8030 if (tls_type == (TLS_TLS | TLS_GD))
8031 {
8032 bfd_put_64 (output_bfd, relocation,
e717da7e 8033 got->contents + off + 8);
7b609f53
AM		 8034 relocation = 1;
8035 }
411e1bfb 8036 }
7b609f53 8037
411e1bfb 8038 bfd_put_64 (output_bfd, relocation,
e717da7e 8039 got->contents + off);
5bd4f169
AM		 8040 }
8041 }
8042
65f38f15
AM		 8043 if (off >= (bfd_vma) -2)
8044 abort ();
8045
e717da7e 8046 relocation = got->output_offset + off;
65f38f15 8047
5bd4f169 8048 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 8049 addend = -TOC_BASE_OFF;
5bd4f169 8050 }
65f38f15
AM		 8051 break;
8052
8053 case R_PPC64_PLT16_HA:
8054 case R_PPC64_PLT16_HI:
8055 case R_PPC64_PLT16_LO:
8056 case R_PPC64_PLT32:
8057 case R_PPC64_PLT64:
8058 /* Relocation is to the entry for this symbol in the
8059 procedure linkage table. */
8060
8061 /* Resolve a PLT reloc against a local symbol directly,
8062 without using the procedure linkage table. */
8063 if (h == NULL)
8064 break;
8065
411e1bfb
AM		 8066 /* It's possible that we didn't make a PLT entry for this
8067 symbol. This happens when statically linking PIC code,
8068 or when using -Bsymbolic. Go find a match if there is a
8069 PLT entry. */
4ce794b7 8070 if (htab->plt != NULL)
65f38f15 8071 {
411e1bfb
AM		 8072 struct plt_entry *ent;
8073 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8074 if (ent->addend == rel->r_addend
8075 && ent->plt.offset != (bfd_vma) -1)
8076 {
4ce794b7
AM		 8077 relocation = (htab->plt->output_section->vma
8078 + htab->plt->output_offset
411e1bfb
AM		 8079 + ent->plt.offset);
8080 unresolved_reloc = FALSE;
8081 }
65f38f15 8082 }
65f38f15 8083 break;
5bd4f169 8084
0b13192e
AM		 8085 case R_PPC64_TOC:
8086 /* Relocation value is TOC base. */
8087 relocation = TOCstart;
8088 if (r_symndx == 0)
8089 relocation += htab->stub_group[input_section->id].toc_off;
8090 else if (sec != NULL && !unresolved_reloc)
8091 relocation += htab->stub_group[sec->id].toc_off;
8092 else
8093 unresolved_reloc = TRUE;
8094 goto dodyn2;
8095
5bd4f169
AM		 8096 /* TOC16 relocs. We want the offset relative to the TOC base,
8097 which is the address of the start of the TOC plus 0x8000.
8098 The TOC consists of sections .got, .toc, .tocbss, and .plt,
8099 in this order. */
65f38f15
AM		 8100 case R_PPC64_TOC16:
8101 case R_PPC64_TOC16_LO:
8102 case R_PPC64_TOC16_HI:
8103 case R_PPC64_TOC16_DS:
8104 case R_PPC64_TOC16_LO_DS:
8105 case R_PPC64_TOC16_HA:
ad8e1ba5 8106 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 8107 break;
8108
8109 /* Relocate against the beginning of the section. */
65f38f15
AM		 8110 case R_PPC64_SECTOFF:
8111 case R_PPC64_SECTOFF_LO:
8112 case R_PPC64_SECTOFF_HI:
8113 case R_PPC64_SECTOFF_DS:
8114 case R_PPC64_SECTOFF_LO_DS:
8115 case R_PPC64_SECTOFF_HA:
4ce794b7 8116 if (sec != NULL)
65f38f15 8117 addend -= sec->output_section->vma;
5bd4f169
AM		 8118 break;
8119
721956f4
AM		 8120 case R_PPC64_REL14:
8121 case R_PPC64_REL14_BRNTAKEN:
8122 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 8123 case R_PPC64_REL24:
8124 break;
8125
411e1bfb
AM		 8126 case R_PPC64_TPREL16:
8127 case R_PPC64_TPREL16_LO:
8128 case R_PPC64_TPREL16_HI:
8129 case R_PPC64_TPREL16_HA:
8130 case R_PPC64_TPREL16_DS:
8131 case R_PPC64_TPREL16_LO_DS:
8132 case R_PPC64_TPREL16_HIGHER:
8133 case R_PPC64_TPREL16_HIGHERA:
8134 case R_PPC64_TPREL16_HIGHEST:
8135 case R_PPC64_TPREL16_HIGHESTA:
8136 addend -= htab->tls_sec->vma + TP_OFFSET;
8137 if (info->shared)
8138 /* The TPREL16 relocs shouldn't really be used in shared
8139 libs as they will result in DT_TEXTREL being set, but
8140 support them anyway. */
8141 goto dodyn;
8142 break;
8143
8144 case R_PPC64_DTPREL16:
8145 case R_PPC64_DTPREL16_LO:
8146 case R_PPC64_DTPREL16_HI:
8147 case R_PPC64_DTPREL16_HA:
8148 case R_PPC64_DTPREL16_DS:
8149 case R_PPC64_DTPREL16_LO_DS:
8150 case R_PPC64_DTPREL16_HIGHER:
8151 case R_PPC64_DTPREL16_HIGHERA:
8152 case R_PPC64_DTPREL16_HIGHEST:
8153 case R_PPC64_DTPREL16_HIGHESTA:
8154 addend -= htab->tls_sec->vma + DTP_OFFSET;
8155 break;
8156
e515b051
AM		 8157 case R_PPC64_DTPMOD64:
8158 relocation = 1;
8159 addend = 0;
8160 goto dodyn;
8161
411e1bfb
AM		 8162 case R_PPC64_TPREL64:
8163 addend -= htab->tls_sec->vma + TP_OFFSET;
8164 goto dodyn;
8165
8166 case R_PPC64_DTPREL64:
8167 addend -= htab->tls_sec->vma + DTP_OFFSET;
8168 /* Fall thru */
8169
65f38f15
AM		 8170 /* Relocations that may need to be propagated if this is a
8171 dynamic object. */
04c9666a 8172 case R_PPC64_REL30:
65f38f15
AM		 8173 case R_PPC64_REL32:
8174 case R_PPC64_REL64:
8175 case R_PPC64_ADDR14:
8176 case R_PPC64_ADDR14_BRNTAKEN:
8177 case R_PPC64_ADDR14_BRTAKEN:
8178 case R_PPC64_ADDR16:
8179 case R_PPC64_ADDR16_DS:
8180 case R_PPC64_ADDR16_HA:
8181 case R_PPC64_ADDR16_HI:
8182 case R_PPC64_ADDR16_HIGHER:
8183 case R_PPC64_ADDR16_HIGHERA:
8184 case R_PPC64_ADDR16_HIGHEST:
8185 case R_PPC64_ADDR16_HIGHESTA:
8186 case R_PPC64_ADDR16_LO:
8187 case R_PPC64_ADDR16_LO_DS:
8188 case R_PPC64_ADDR24:
65f38f15
AM		 8189 case R_PPC64_ADDR32:
8190 case R_PPC64_ADDR64:
8191 case R_PPC64_UADDR16:
8192 case R_PPC64_UADDR32:
8193 case R_PPC64_UADDR64:
ec338859
AM		 8194 /* r_symndx will be zero only for relocs against symbols
8195 from removed linkonce sections, or sections discarded by
8196 a linker script. */
411e1bfb 8197 dodyn:
5d1634d7
AM		 8198 if (r_symndx == 0)
8199 break;
8200 /* Fall thru. */
8201
0b13192e 8202 dodyn2:
5d1634d7 8203 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 8204 break;
8205
41bd81ab
AM		 8206 if (NO_OPD_RELOCS && is_opd)
8207 break;
8208
65f38f15 8209 if ((info->shared
4e795f50
AM		 8210 && (h == NULL
8211 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8212 || h->root.type != bfd_link_hash_undefweak)
411e1bfb 8213 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 8214 || !SYMBOL_CALLS_LOCAL (info, h)))
f4656909
AM		 8215 || (ELIMINATE_COPY_RELOCS
8216 && !info->shared
65f38f15
AM		 8217 && h != NULL
8218 && h->dynindx != -1
8219 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 8220 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8221 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
65f38f15
AM		 8222 {
8223 Elf_Internal_Rela outrel;
b34976b6 8224 bfd_boolean skip, relocate;
65f38f15 8225 asection *sreloc;
947216bf 8226 bfd_byte *loc;
1cf1f670 8227 bfd_vma out_off;
65f38f15
AM		 8228
8229 /* When generating a dynamic object, these relocations
8230 are copied into the output file to be resolved at run
8231 time. */
8232
b34976b6
AM		 8233 skip = FALSE;
8234 relocate = FALSE;
65f38f15 8235
1cf1f670
AM		 8236 out_off = _bfd_elf_section_offset (output_bfd, info,
8237 input_section, rel->r_offset);
8238 if (out_off == (bfd_vma) -1)
b34976b6 8239 skip = TRUE;
1cf1f670 8240 else if (out_off == (bfd_vma) -2)
b34976b6 8241 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 8242 out_off += (input_section->output_section->vma
8243 + input_section->output_offset);
8244 outrel.r_offset = out_off;
411e1bfb 8245 outrel.r_addend = rel->r_addend;
65f38f15 8246
1cf1f670
AM		 8247 /* Optimize unaligned reloc use. */
8248 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
8249 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
8250 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
8251 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
8252 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
8253 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
8254 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
8255 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
8256 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
8257
65f38f15 8258 if (skip)
0bb2d96a 8259 memset (&outrel, 0, sizeof outrel);
f6c52c13 8260 else if (!SYMBOL_REFERENCES_LOCAL (info, h)
0b13192e
AM		 8261 && !is_opd
8262 && r_type != R_PPC64_TOC)
0bb2d96a 8263 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
65f38f15
AM		 8264 else
8265 {
41bd81ab
AM		 8266 /* This symbol is local, or marked to become local,
8267 or this is an opd section reloc which must point
8268 at a local function. */
65f38f15 8269 outrel.r_addend += relocation;
e86ce104 8270 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 8271 {
3fad3c7c 8272 if (is_opd && h != NULL)
afbe61cf
AM		 8273 {
8274 /* Lie about opd entries. This case occurs
8275 when building shared libraries and we
8276 reference a function in another shared
3fad3c7c
AM		 8277 lib. The same thing happens for a weak
8278 definition in an application that's
8279 overridden by a strong definition in a
8280 shared lib. (I believe this is a generic
8281 bug in binutils handling of weak syms.)
8282 In these cases we won't use the opd
1e2f5b6e 8283 entry in this lib. */
b34976b6 8284 unresolved_reloc = FALSE;
afbe61cf 8285 }
65f38f15 8286 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 8287
8288 /* We need to relocate .opd contents for ld.so.
8289 Prelink also wants simple and consistent rules
8290 for relocs. This make all RELATIVE relocs have
8291 *r_offset equal to r_addend. */
8292 relocate = TRUE;
65f38f15
AM		 8293 }
8294 else
8295 {
8296 long indx = 0;
8297
41bd81ab 8298 if (bfd_is_abs_section (sec))
65f38f15
AM		 8299 ;
8300 else if (sec == NULL || sec->owner == NULL)
8301 {
8302 bfd_set_error (bfd_error_bad_value);
b34976b6 8303 return FALSE;
65f38f15
AM		 8304 }
8305 else
8306 {
8307 asection *osec;
8308
8309 osec = sec->output_section;
8310 indx = elf_section_data (osec)->dynindx;
8311
8312 /* We are turning this relocation into one
8313 against a section symbol, so subtract out
8314 the output section's address but not the
8315 offset of the input section in the output
8316 section. */
8317 outrel.r_addend -= osec->vma;
8318 }
8319
8320 outrel.r_info = ELF64_R_INFO (indx, r_type);
8321 }
8322 }
8323
8324 sreloc = elf_section_data (input_section)->sreloc;
8325 if (sreloc == NULL)
8326 abort ();
8327
947216bf
AM		 8328 loc = sreloc->contents;
8329 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 8330 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8331
8332 /* If this reloc is against an external symbol, it will
8333 be computed at runtime, so there's no need to do
81407a69
AM		 8334 anything now. However, for the sake of prelink ensure
8335 that the section contents are a known value. */
65f38f15 8336 if (! relocate)
81407a69
AM		 8337 {
8338 unresolved_reloc = FALSE;
8339 /* The value chosen here is quite arbitrary as ld.so
8340 ignores section contents except for the special
8341 case of .opd where the contents might be accessed
8342 before relocation. Choose zero, as that won't
8343 cause reloc overflow. */
8344 relocation = 0;
8345 addend = 0;
8346 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
8347 to improve backward compatibility with older
8348 versions of ld. */
8349 if (r_type == R_PPC64_ADDR64)
8350 addend = outrel.r_addend;
8351 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 8352 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 8353 addend = (input_section->output_section->vma
8354 + input_section->output_offset
8355 + rel->r_offset);
81407a69 8356 }
65f38f15 8357 }
5bd4f169
AM		 8358 break;
8359
65f38f15
AM		 8360 case R_PPC64_COPY:
8361 case R_PPC64_GLOB_DAT:
8362 case R_PPC64_JMP_SLOT:
8363 case R_PPC64_RELATIVE:
8364 /* We shouldn't ever see these dynamic relocs in relocatable
8365 files. */
ae9a127f 8366 /* Fall through. */
65f38f15
AM		 8367
8368 case R_PPC64_PLTGOT16:
8369 case R_PPC64_PLTGOT16_DS:
8370 case R_PPC64_PLTGOT16_HA:
8371 case R_PPC64_PLTGOT16_HI:
8372 case R_PPC64_PLTGOT16_LO:
8373 case R_PPC64_PLTGOT16_LO_DS:
8374 case R_PPC64_PLTREL32:
8375 case R_PPC64_PLTREL64:
8376 /* These ones haven't been implemented yet. */
8377
8378 (*_bfd_error_handler)
7b609f53 8379 (_("%s: relocation %s is not supported for symbol %s."),
65f38f15 8380 bfd_archive_filename (input_bfd),
4ce794b7 8381 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 8382
8383 bfd_set_error (bfd_error_invalid_operation);
b34976b6 8384 ret = FALSE;
5bd4f169 8385 continue;
65f38f15 8386 }
5bd4f169 8387
65f38f15
AM		 8388 /* Do any further special processing. */
8389 switch (r_type)
8390 {
8391 default:
8392 break;
8393
8394 case R_PPC64_ADDR16_HA:
8395 case R_PPC64_ADDR16_HIGHERA:
8396 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM		 8397 case R_PPC64_GOT16_HA:
8398 case R_PPC64_PLTGOT16_HA:
65f38f15
AM		 8399 case R_PPC64_PLT16_HA:
8400 case R_PPC64_TOC16_HA:
8401 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 8402 case R_PPC64_TPREL16_HA:
8403 case R_PPC64_DTPREL16_HA:
8404 case R_PPC64_GOT_TLSGD16_HA:
8405 case R_PPC64_GOT_TLSLD16_HA:
8406 case R_PPC64_GOT_TPREL16_HA:
8407 case R_PPC64_GOT_DTPREL16_HA:
8408 case R_PPC64_TPREL16_HIGHER:
8409 case R_PPC64_TPREL16_HIGHERA:
8410 case R_PPC64_TPREL16_HIGHEST:
8411 case R_PPC64_TPREL16_HIGHESTA:
8412 case R_PPC64_DTPREL16_HIGHER:
8413 case R_PPC64_DTPREL16_HIGHERA:
8414 case R_PPC64_DTPREL16_HIGHEST:
8415 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 8416 /* It's just possible that this symbol is a weak symbol
8417 that's not actually defined anywhere. In that case,
8418 'sec' would be NULL, and we should leave the symbol
8419 alone (it will be set to zero elsewhere in the link). */
8420 if (sec != NULL)
e515b051
AM		 8421 /* Add 0x10000 if sign bit in 0:15 is set.
8422 Bits 0:15 are not used. */
8423 addend += 0x8000;
65f38f15
AM		 8424 break;
8425
8426 case R_PPC64_ADDR16_DS:
8427 case R_PPC64_ADDR16_LO_DS:
8428 case R_PPC64_GOT16_DS:
8429 case R_PPC64_GOT16_LO_DS:
8430 case R_PPC64_PLT16_LO_DS:
8431 case R_PPC64_SECTOFF_DS:
8432 case R_PPC64_SECTOFF_LO_DS:
8433 case R_PPC64_TOC16_DS:
8434 case R_PPC64_TOC16_LO_DS:
8435 case R_PPC64_PLTGOT16_DS:
8436 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 8437 case R_PPC64_GOT_TPREL16_DS:
8438 case R_PPC64_GOT_TPREL16_LO_DS:
8439 case R_PPC64_GOT_DTPREL16_DS:
8440 case R_PPC64_GOT_DTPREL16_LO_DS:
8441 case R_PPC64_TPREL16_DS:
8442 case R_PPC64_TPREL16_LO_DS:
8443 case R_PPC64_DTPREL16_DS:
8444 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 8445 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
8446 mask = 3;
8447 /* If this reloc is against an lq insn, then the value must be
8448 a multiple of 16. This is somewhat of a hack, but the
8449 "correct" way to do this by defining _DQ forms of all the
8450 _DS relocs bloats all reloc switches in this file. It
8451 doesn't seem to make much sense to use any of these relocs
8452 in data, so testing the insn should be safe. */
494dac0c 8453 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 8454 mask = 15;
8455 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 8456 {
8457 (*_bfd_error_handler)
adadcc0c 8458 (_("%s: error: relocation %s not a multiple of %d"),
65f38f15 8459 bfd_archive_filename (input_bfd),
4ce794b7 8460 ppc64_elf_howto_table[r_type]->name,
adadcc0c 8461 mask + 1);
65f38f15 8462 bfd_set_error (bfd_error_bad_value);
b34976b6 8463 ret = FALSE;
65f38f15
AM		 8464 continue;
8465 }
8466 break;
721956f4
AM		 8467
8468 case R_PPC64_REL14:
8469 case R_PPC64_REL14_BRNTAKEN:
8470 case R_PPC64_REL14_BRTAKEN:
8471 max_br_offset = 1 << 15;
8472 goto branch_check;
8473
8474 case R_PPC64_REL24:
8475 max_br_offset = 1 << 25;
8476
8477 branch_check:
ad8e1ba5
AM		 8478 /* If the branch is out of reach or the TOC register needs
8479 adjusting, then redirect the call to the local stub for
8480 this function. */
411e1bfb 8481 from = (rel->r_offset
721956f4
AM		 8482 + input_section->output_offset
8483 + input_section->output_section->vma);
ad8e1ba5
AM		 8484 if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset
8485 || (sec != NULL
8486 && sec->output_section != NULL
8f3bab57 8487 && sec->id <= htab->top_id
ad8e1ba5
AM		 8488 && (htab->stub_group[sec->id].toc_off
8489 != htab->stub_group[input_section->id].toc_off)))
721956f4
AM		 8490 && (stub_entry = ppc_get_stub_entry (input_section, sec, h,
8491 rel, htab)) != NULL)
8492 {
8493 /* Munge up the value and addend so that we call the stub
8494 rather than the procedure directly. */
8495 relocation = (stub_entry->stub_offset
8496 + stub_entry->stub_sec->output_offset
8497 + stub_entry->stub_sec->output_section->vma);
8498 addend = 0;
8499 }
8500 break;
5bd4f169
AM		 8501 }
8502
239e1f3a
AM		 8503 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8504 because such sections are not SEC_ALLOC and thus ld.so will
8505 not process them. */
65f38f15 8506 if (unresolved_reloc
239e1f3a 8507 && !((input_section->flags & SEC_DEBUGGING) != 0
65f38f15 8508 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
9c07fe7c
AM		 8509 {
8510 (*_bfd_error_handler)
7b609f53 8511 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
9c07fe7c
AM		 8512 bfd_archive_filename (input_bfd),
8513 bfd_get_section_name (input_bfd, input_section),
8514 (long) rel->r_offset,
7b609f53 8515 ppc64_elf_howto_table[(int) r_type]->name,
9c07fe7c 8516 h->root.root.string);
b34976b6 8517 ret = FALSE;
9c07fe7c 8518 }
5bd4f169 8519
65f38f15 8520 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 8521 input_bfd,
8522 input_section,
8523 contents,
411e1bfb 8524 rel->r_offset,
5bd4f169
AM		 8525 relocation,
8526 addend);
8527
ef60b7ff 8528 if (r != bfd_reloc_ok)
5bd4f169 8529 {
cd27b276
AM		 8530 if (sym_name == NULL)
8531 sym_name = "(null)";
8532 if (r == bfd_reloc_overflow)
5bd4f169 8533 {
cd27b276
AM		 8534 if (warned)
8535 continue;
8536 if (h != NULL
8537 && h->root.type == bfd_link_hash_undefweak
4ce794b7 8538 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 8539 {
8540 /* Assume this is a call protected by other code that
8541 detects the symbol is undefined. If this is the case,
8542 we can safely ignore the overflow. If not, the
8543 program is hosed anyway, and a little warning isn't
8544 going to help. */
8545
8546 continue;
8547 }
8548
ef60b7ff 8549 if (!((*info->callbacks->reloc_overflow)
4ce794b7 8550 (info, sym_name, ppc64_elf_howto_table[r_type]->name,
411e1bfb 8551 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 8552 return FALSE;
ef60b7ff
AM		 8553 }
8554 else
8555 {
8556 (*_bfd_error_handler)
7b609f53 8557 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
ef60b7ff
AM		 8558 bfd_archive_filename (input_bfd),
8559 bfd_get_section_name (input_bfd, input_section),
7b609f53 8560 (long) rel->r_offset,
4ce794b7 8561 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 8562 sym_name,
8563 (int) r);
b34976b6 8564 ret = FALSE;
ef60b7ff 8565 }
5bd4f169 8566 }
5bd4f169
AM		 8567 }
8568
5bd4f169
AM		 8569 return ret;
8570}
8571
8572/* Finish up dynamic symbol handling. We set the contents of various
8573 dynamic sections here. */
8574
b34976b6 8575static bfd_boolean
4ce794b7
AM		 8576ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
8577 struct bfd_link_info *info,
8578 struct elf_link_hash_entry *h,
8579 Elf_Internal_Sym *sym)
5bd4f169 8580{
65f38f15 8581 struct ppc_link_hash_table *htab;
5bd4f169
AM		 8582 bfd *dynobj;
8583
65f38f15
AM		 8584 htab = ppc_hash_table (info);
8585 dynobj = htab->elf.dynobj;
5bd4f169 8586
411e1bfb 8587 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
5bd4f169 8588 {
411e1bfb 8589 struct plt_entry *ent;
65f38f15 8590 Elf_Internal_Rela rela;
947216bf 8591 bfd_byte *loc;
5bd4f169 8592
411e1bfb
AM		 8593 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8594 if (ent->plt.offset != (bfd_vma) -1)
8595 {
8596 /* This symbol has an entry in the procedure linkage
8597 table. Set it up. */
5bd4f169 8598
4ce794b7
AM		 8599 if (htab->plt == NULL
8600 || htab->relplt == NULL
8601 || htab->glink == NULL)
411e1bfb 8602 abort ();
5bd4f169 8603
411e1bfb
AM		 8604 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8605 fill in the PLT entry. */
4ce794b7
AM		 8606 rela.r_offset = (htab->plt->output_section->vma
8607 + htab->plt->output_offset
411e1bfb
AM		 8608 + ent->plt.offset);
8609 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
8610 rela.r_addend = ent->addend;
5bd4f169 8611
4ce794b7 8612 loc = htab->relplt->contents;
411e1bfb
AM		 8613 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
8614 * sizeof (Elf64_External_Rela));
8615 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8616 }
5bd4f169
AM		 8617 }
8618
8619 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
8620 {
5bd4f169 8621 Elf_Internal_Rela rela;
947216bf 8622 bfd_byte *loc;
5bd4f169 8623
65f38f15 8624 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 8625
65f38f15
AM		 8626 if (h->dynindx == -1
8627 || (h->root.type != bfd_link_hash_defined
8628 && h->root.type != bfd_link_hash_defweak)
4ce794b7 8629 || htab->relbss == NULL)
65f38f15 8630 abort ();
5bd4f169
AM		 8631
8632 rela.r_offset = (h->root.u.def.value
8633 + h->root.u.def.section->output_section->vma
8634 + h->root.u.def.section->output_offset);
8635 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
8636 rela.r_addend = 0;
4ce794b7
AM		 8637 loc = htab->relbss->contents;
8638 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 8639 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 8640 }
8641
5bd4f169
AM		 8642 /* Mark some specially defined symbols as absolute. */
8643 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
8644 sym->st_shndx = SHN_ABS;
8645
b34976b6 8646 return TRUE;
5bd4f169
AM		 8647}
8648
65f38f15
AM		 8649/* Used to decide how to sort relocs in an optimal manner for the
8650 dynamic linker, before writing them out. */
8651
8652static enum elf_reloc_type_class
4ce794b7 8653ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 8654{
04c9666a 8655 enum elf_ppc64_reloc_type r_type;
a33d1f77 8656
4ce794b7 8657 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 8658 switch (r_type)
65f38f15
AM		 8659 {
8660 case R_PPC64_RELATIVE:
8661 return reloc_class_relative;
8662 case R_PPC64_JMP_SLOT:
8663 return reloc_class_plt;
8664 case R_PPC64_COPY:
8665 return reloc_class_copy;
8666 default:
8667 return reloc_class_normal;
8668 }
8669}
8670
5bd4f169
AM		 8671/* Finish up the dynamic sections. */
8672
b34976b6 8673static bfd_boolean
4ce794b7
AM		 8674ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
8675 struct bfd_link_info *info)
5bd4f169 8676{
65f38f15
AM		 8677 struct ppc_link_hash_table *htab;
8678 bfd *dynobj;
5bd4f169 8679 asection *sdyn;
5bd4f169 8680
65f38f15
AM		 8681 htab = ppc_hash_table (info);
8682 dynobj = htab->elf.dynobj;
5bd4f169
AM		 8683 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8684
65f38f15 8685 if (htab->elf.dynamic_sections_created)
5bd4f169 8686 {
5bd4f169
AM		 8687 Elf64_External_Dyn *dyncon, *dynconend;
8688
4ce794b7 8689 if (sdyn == NULL || htab->got == NULL)
65f38f15 8690 abort ();
5bd4f169
AM		 8691
8692 dyncon = (Elf64_External_Dyn *) sdyn->contents;
8693 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
8694 for (; dyncon < dynconend; dyncon++)
8695 {
8696 Elf_Internal_Dyn dyn;
19397422 8697 asection *s;
5bd4f169
AM		 8698
8699 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
8700
8701 switch (dyn.d_tag)
8702 {
65f38f15
AM		 8703 default:
8704 continue;
5bd4f169 8705
5d1634d7 8706 case DT_PPC64_GLINK:
4ce794b7 8707 s = htab->glink;
6348e046 8708 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 8709 /* We stupidly defined DT_PPC64_GLINK to be the start
8710 of glink rather than the first entry point, which is
8711 what ld.so needs, and now have a bigger stub to
8712 support automatic multiple TOCs. */
8713 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 8714 break;
8715
19397422
AM		 8716 case DT_PPC64_OPD:
8717 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 8718 if (s == NULL)
8719 continue;
8720 dyn.d_un.d_ptr = s->vma;
19397422
AM		 8721 break;
8722
8723 case DT_PPC64_OPDSZ:
8724 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 8725 if (s == NULL)
8726 continue;
8727 dyn.d_un.d_val = s->_raw_size;
19397422
AM		 8728 break;
8729
65f38f15 8730 case DT_PLTGOT:
4ce794b7 8731 s = htab->plt;
6348e046 8732 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 8733 break;
8734
8735 case DT_JMPREL:
4ce794b7 8736 s = htab->relplt;
6348e046 8737 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 8738 break;
5bd4f169 8739
65f38f15 8740 case DT_PLTRELSZ:
4ce794b7 8741 dyn.d_un.d_val = htab->relplt->_raw_size;
5d1634d7
AM		 8742 break;
8743
8744 case DT_RELASZ:
8745 /* Don't count procedure linkage table relocs in the
8746 overall reloc count. */
4ce794b7 8747 s = htab->relplt;
6348e046
AM		 8748 if (s == NULL)
8749 continue;
8750 dyn.d_un.d_val -= s->_raw_size;
8751 break;
8752
8753 case DT_RELA:
8754 /* We may not be using the standard ELF linker script.
8755 If .rela.plt is the first .rela section, we adjust
8756 DT_RELA to not include it. */
4ce794b7 8757 s = htab->relplt;
6348e046
AM		 8758 if (s == NULL)
8759 continue;
8760 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
8761 continue;
8762 dyn.d_un.d_ptr += s->_raw_size;
65f38f15 8763 break;
5bd4f169 8764 }
5bd4f169 8765
65f38f15 8766 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 8767 }
5bd4f169
AM		 8768 }
8769
4ce794b7 8770 if (htab->got != NULL && htab->got->_raw_size != 0)
5d1634d7
AM		 8771 {
8772 /* Fill in the first entry in the global offset table.
8773 We use it to hold the link-time TOCbase. */
8774 bfd_put_64 (output_bfd,
60ee0d4a 8775 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 8776 htab->got->contents);
5d1634d7
AM		 8777
8778 /* Set .got entry size. */
4ce794b7 8779 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 8780 }
8781
4ce794b7 8782 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5d1634d7
AM		 8783 {
8784 /* Set .plt entry size. */
4ce794b7 8785 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 8786 = PLT_ENTRY_SIZE;
8787 }
8788
e717da7e
AM		 8789 /* We need to handle writing out multiple GOT sections ourselves,
8790 since we didn't add them to DYNOBJ. */
8791 while ((dynobj = dynobj->link_next) != NULL)
8792 {
8793 asection *s;
8794 s = ppc64_elf_tdata (dynobj)->got;
8795 if (s != NULL
8796 && s->_raw_size != 0
8797 && s->output_section != bfd_abs_section_ptr
8798 && !bfd_set_section_contents (output_bfd, s->output_section,
8799 s->contents, s->output_offset,
8800 s->_raw_size))
8801 return FALSE;
8802 s = ppc64_elf_tdata (dynobj)->relgot;
8803 if (s != NULL
8804 && s->_raw_size != 0
8805 && s->output_section != bfd_abs_section_ptr
8806 && !bfd_set_section_contents (output_bfd, s->output_section,
8807 s->contents, s->output_offset,
8808 s->_raw_size))
8809 return FALSE;
8810 }
f6c52c13 8811
b34976b6 8812 return TRUE;
5bd4f169
AM		 8813}
8814
5bd4f169 8815#include "elf64-target.h"
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