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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"
2f89ff8d 31#include "elf/ppc.h"
04c9666a 32#include "elf/ppc64.h"
5d1634d7 33#include "elf64-ppc.h"
5bd4f169 34
805fc799 35static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 36 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 37static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 38 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 39static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 40 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 41static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 42 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 43static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 44 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 45static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 46 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 47static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 48 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 49static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 50 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
5bd4f169
AM		 51
52
ad8e1ba5
AM		 53#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
54#define TARGET_LITTLE_NAME "elf64-powerpcle"
55#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
56#define TARGET_BIG_NAME "elf64-powerpc"
57#define ELF_ARCH bfd_arch_powerpc
58#define ELF_MACHINE_CODE EM_PPC64
59#define ELF_MAXPAGESIZE 0x10000
60#define elf_info_to_howto ppc64_elf_info_to_howto
61
62#define elf_backend_want_got_sym 0
63#define elf_backend_want_plt_sym 0
64#define elf_backend_plt_alignment 3
65#define elf_backend_plt_not_loaded 1
66#define elf_backend_got_symbol_offset 0
67#define elf_backend_got_header_size 8
68#define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
69#define elf_backend_can_gc_sections 1
70#define elf_backend_can_refcount 1
71#define elf_backend_rela_normal 1
72
e717da7e 73#define bfd_elf64_mkobject ppc64_elf_mkobject
ad8e1ba5
AM		 74#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
75#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
76#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
77#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
78#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
79
80#define elf_backend_object_p ppc64_elf_object_p
81#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
82#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
83#define elf_backend_check_relocs ppc64_elf_check_relocs
84#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
85#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
86#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
87#define elf_backend_hide_symbol ppc64_elf_hide_symbol
88#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
89#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
90#define elf_backend_relocate_section ppc64_elf_relocate_section
91#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
92#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
93#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
2f89ff8d 94#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 95
5bd4f169
AM		 96/* The name of the dynamic interpreter. This is put in the .interp
97 section. */
98#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
99
100/* The size in bytes of an entry in the procedure linkage table. */
101#define PLT_ENTRY_SIZE 24
102
103/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 104#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM		 105
106/* TOC base pointers offset from start of TOC. */
411e1bfb
AM		 107#define TOC_BASE_OFF 0x8000
108
109/* Offset of tp and dtp pointers from start of TLS block. */
110#define TP_OFFSET 0x7000
111#define DTP_OFFSET 0x8000
5bd4f169 112
ad8e1ba5
AM		 113/* .plt call stub instructions. The normal stub is like this, but
114 sometimes the .plt entry crosses a 64k boundary and we need to
115 insert an addis to adjust r12. */
116#define PLT_CALL_STUB_SIZE (7*4)
5d1634d7
AM		 117#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
118#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
119#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
120#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
121#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
122 /* ld %r11,xxx+16@l(%r12) */
123#define BCTR 0x4e800420 /* bctr */
124
5d1634d7 125
ad8e1ba5
AM		 126#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
127#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
128
129#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
130
131/* glink call stub instructions. We enter with the index in R0, and the
132 address of glink entry in CTR. From that, we can calculate PLT0. */
133#define GLINK_CALL_STUB_SIZE (16*4)
134#define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
135#define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
136#define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
137#define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
138#define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
139#define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
140#define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
141 /* sub %r12,%r12,%r11 */
142#define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
143#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
144 /* ld %r11,xxx@l(%r12) */
145#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
146 /* ld %r2,8(%r12) */
147 /* mtctr %r11 */
148 /* ld %r11,16(%r12) */
149 /* bctr */
5d1634d7
AM		 150
151/* Pad with this. */
152#define NOP 0x60000000
153
721956f4
AM		 154/* Some other nops. */
155#define CROR_151515 0x4def7b82
156#define CROR_313131 0x4ffffb82
157
cedb70c5 158/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM		 159#define LI_R0_0 0x38000000 /* li %r0,0 */
160#define B_DOT 0x48000000 /* b . */
161
162/* After that, we need two instructions to load the index, followed by
163 a branch. */
164#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 165#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 166
82bd7b59
AM		 167/* Instructions to save and restore floating point regs. */
168#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
169#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
170#define BLR 0x4e800020 /* blr */
171
41bd81ab
AM		 172/* Since .opd is an array of descriptors and each entry will end up
173 with identical R_PPC64_RELATIVE relocs, there is really no need to
174 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 175 relocate .opd without reloc entries. */
41bd81ab
AM		 176#ifndef NO_OPD_RELOCS
177#define NO_OPD_RELOCS 0
178#endif
5bd4f169 179\f
f5e87a1d 180#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 181
5bd4f169 182/* Relocation HOWTO's. */
04c9666a 183static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM		 184
185static reloc_howto_type ppc64_elf_howto_raw[] = {
186 /* This reloc does nothing. */
187 HOWTO (R_PPC64_NONE, /* type */
188 0, /* rightshift */
411e1bfb
AM		 189 2, /* size (0 = byte, 1 = short, 2 = long) */
190 32, /* bitsize */
b34976b6 191 FALSE, /* pc_relative */
5bd4f169 192 0, /* bitpos */
f5e87a1d 193 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM		 194 bfd_elf_generic_reloc, /* special_function */
195 "R_PPC64_NONE", /* name */
b34976b6 196 FALSE, /* partial_inplace */
d006db6c 197 0, /* src_mask */
5bd4f169 198 0, /* dst_mask */
b34976b6 199 FALSE), /* pcrel_offset */
5bd4f169
AM		 200
201 /* A standard 32 bit relocation. */
202 HOWTO (R_PPC64_ADDR32, /* type */
203 0, /* rightshift */
204 2, /* size (0 = byte, 1 = short, 2 = long) */
205 32, /* bitsize */
b34976b6 206 FALSE, /* pc_relative */
5bd4f169
AM		 207 0, /* bitpos */
208 complain_overflow_bitfield, /* complain_on_overflow */
209 bfd_elf_generic_reloc, /* special_function */
210 "R_PPC64_ADDR32", /* name */
b34976b6 211 FALSE, /* partial_inplace */
5bd4f169
AM		 212 0, /* src_mask */
213 0xffffffff, /* dst_mask */
b34976b6 214 FALSE), /* pcrel_offset */
5bd4f169
AM		 215
216 /* An absolute 26 bit branch; the lower two bits must be zero.
217 FIXME: we don't check that, we just clear them. */
218 HOWTO (R_PPC64_ADDR24, /* type */
219 0, /* rightshift */
220 2, /* size (0 = byte, 1 = short, 2 = long) */
221 26, /* bitsize */
b34976b6 222 FALSE, /* pc_relative */
5bd4f169
AM		 223 0, /* bitpos */
224 complain_overflow_bitfield, /* complain_on_overflow */
225 bfd_elf_generic_reloc, /* special_function */
226 "R_PPC64_ADDR24", /* name */
b34976b6 227 FALSE, /* partial_inplace */
d006db6c 228 0, /* src_mask */
f5e87a1d 229 0x03fffffc, /* dst_mask */
b34976b6 230 FALSE), /* pcrel_offset */
5bd4f169
AM		 231
232 /* A standard 16 bit relocation. */
233 HOWTO (R_PPC64_ADDR16, /* type */
234 0, /* rightshift */
235 1, /* size (0 = byte, 1 = short, 2 = long) */
236 16, /* bitsize */
b34976b6 237 FALSE, /* pc_relative */
5bd4f169
AM		 238 0, /* bitpos */
239 complain_overflow_bitfield, /* complain_on_overflow */
240 bfd_elf_generic_reloc, /* special_function */
241 "R_PPC64_ADDR16", /* name */
b34976b6 242 FALSE, /* partial_inplace */
5bd4f169
AM		 243 0, /* src_mask */
244 0xffff, /* dst_mask */
b34976b6 245 FALSE), /* pcrel_offset */
5bd4f169
AM		 246
247 /* A 16 bit relocation without overflow. */
248 HOWTO (R_PPC64_ADDR16_LO, /* type */
249 0, /* rightshift */
250 1, /* size (0 = byte, 1 = short, 2 = long) */
251 16, /* bitsize */
b34976b6 252 FALSE, /* pc_relative */
5bd4f169
AM		 253 0, /* bitpos */
254 complain_overflow_dont,/* complain_on_overflow */
255 bfd_elf_generic_reloc, /* special_function */
256 "R_PPC64_ADDR16_LO", /* name */
b34976b6 257 FALSE, /* partial_inplace */
5bd4f169
AM		 258 0, /* src_mask */
259 0xffff, /* dst_mask */
b34976b6 260 FALSE), /* pcrel_offset */
5bd4f169
AM		 261
262 /* Bits 16-31 of an address. */
263 HOWTO (R_PPC64_ADDR16_HI, /* type */
264 16, /* rightshift */
265 1, /* size (0 = byte, 1 = short, 2 = long) */
266 16, /* bitsize */
b34976b6 267 FALSE, /* pc_relative */
5bd4f169
AM		 268 0, /* bitpos */
269 complain_overflow_dont, /* complain_on_overflow */
270 bfd_elf_generic_reloc, /* special_function */
271 "R_PPC64_ADDR16_HI", /* name */
b34976b6 272 FALSE, /* partial_inplace */
5bd4f169
AM		 273 0, /* src_mask */
274 0xffff, /* dst_mask */
b34976b6 275 FALSE), /* pcrel_offset */
5bd4f169
AM		 276
277 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
278 bits, treated as a signed number, is negative. */
279 HOWTO (R_PPC64_ADDR16_HA, /* type */
280 16, /* rightshift */
281 1, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
b34976b6 283 FALSE, /* pc_relative */
5bd4f169
AM		 284 0, /* bitpos */
285 complain_overflow_dont, /* complain_on_overflow */
805fc799 286 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 287 "R_PPC64_ADDR16_HA", /* name */
b34976b6 288 FALSE, /* partial_inplace */
5bd4f169
AM		 289 0, /* src_mask */
290 0xffff, /* dst_mask */
b34976b6 291 FALSE), /* pcrel_offset */
5bd4f169
AM		 292
293 /* An absolute 16 bit branch; the lower two bits must be zero.
294 FIXME: we don't check that, we just clear them. */
295 HOWTO (R_PPC64_ADDR14, /* type */
296 0, /* rightshift */
297 2, /* size (0 = byte, 1 = short, 2 = long) */
298 16, /* bitsize */
b34976b6 299 FALSE, /* pc_relative */
5bd4f169
AM		 300 0, /* bitpos */
301 complain_overflow_bitfield, /* complain_on_overflow */
302 bfd_elf_generic_reloc, /* special_function */
303 "R_PPC64_ADDR14", /* name */
b34976b6 304 FALSE, /* partial_inplace */
d006db6c 305 0, /* src_mask */
f5e87a1d 306 0x0000fffc, /* dst_mask */
b34976b6 307 FALSE), /* pcrel_offset */
5bd4f169
AM		 308
309 /* An absolute 16 bit branch, for which bit 10 should be set to
310 indicate that the branch is expected to be taken. The lower two
311 bits must be zero. */
312 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
313 0, /* rightshift */
314 2, /* size (0 = byte, 1 = short, 2 = long) */
315 16, /* bitsize */
b34976b6 316 FALSE, /* pc_relative */
5bd4f169
AM		 317 0, /* bitpos */
318 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 319 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 320 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 321 FALSE, /* partial_inplace */
d006db6c 322 0, /* src_mask */
f5e87a1d 323 0x0000fffc, /* dst_mask */
b34976b6 324 FALSE), /* pcrel_offset */
5bd4f169
AM		 325
326 /* An absolute 16 bit branch, for which bit 10 should be set to
327 indicate that the branch is not expected to be taken. The lower
328 two bits must be zero. */
329 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
330 0, /* rightshift */
331 2, /* size (0 = byte, 1 = short, 2 = long) */
332 16, /* bitsize */
b34976b6 333 FALSE, /* pc_relative */
5bd4f169
AM		 334 0, /* bitpos */
335 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 336 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 337 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 338 FALSE, /* partial_inplace */
d006db6c 339 0, /* src_mask */
f5e87a1d 340 0x0000fffc, /* dst_mask */
b34976b6 341 FALSE), /* pcrel_offset */
5bd4f169
AM		 342
343 /* A relative 26 bit branch; the lower two bits must be zero. */
344 HOWTO (R_PPC64_REL24, /* type */
345 0, /* rightshift */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
347 26, /* bitsize */
b34976b6 348 TRUE, /* pc_relative */
5bd4f169
AM		 349 0, /* bitpos */
350 complain_overflow_signed, /* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_PPC64_REL24", /* name */
b34976b6 353 FALSE, /* partial_inplace */
d006db6c 354 0, /* src_mask */
f5e87a1d 355 0x03fffffc, /* dst_mask */
b34976b6 356 TRUE), /* pcrel_offset */
5bd4f169
AM		 357
358 /* A relative 16 bit branch; the lower two bits must be zero. */
359 HOWTO (R_PPC64_REL14, /* type */
360 0, /* rightshift */
361 2, /* size (0 = byte, 1 = short, 2 = long) */
362 16, /* bitsize */
b34976b6 363 TRUE, /* pc_relative */
5bd4f169
AM		 364 0, /* bitpos */
365 complain_overflow_signed, /* complain_on_overflow */
366 bfd_elf_generic_reloc, /* special_function */
367 "R_PPC64_REL14", /* name */
b34976b6 368 FALSE, /* partial_inplace */
d006db6c 369 0, /* src_mask */
f5e87a1d 370 0x0000fffc, /* dst_mask */
b34976b6 371 TRUE), /* pcrel_offset */
5bd4f169
AM		 372
373 /* A relative 16 bit branch. Bit 10 should be set to indicate that
374 the branch is expected to be taken. The lower two bits must be
375 zero. */
376 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
377 0, /* rightshift */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
379 16, /* bitsize */
b34976b6 380 TRUE, /* pc_relative */
5bd4f169
AM		 381 0, /* bitpos */
382 complain_overflow_signed, /* complain_on_overflow */
805fc799 383 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 384 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 385 FALSE, /* partial_inplace */
d006db6c 386 0, /* src_mask */
f5e87a1d 387 0x0000fffc, /* dst_mask */
b34976b6 388 TRUE), /* pcrel_offset */
5bd4f169
AM		 389
390 /* A relative 16 bit branch. Bit 10 should be set to indicate that
391 the branch is not expected to be taken. The lower two bits must
392 be zero. */
393 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
394 0, /* rightshift */
395 2, /* size (0 = byte, 1 = short, 2 = long) */
396 16, /* bitsize */
b34976b6 397 TRUE, /* pc_relative */
5bd4f169
AM		 398 0, /* bitpos */
399 complain_overflow_signed, /* complain_on_overflow */
805fc799 400 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 401 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 402 FALSE, /* partial_inplace */
d006db6c 403 0, /* src_mask */
f5e87a1d 404 0x0000fffc, /* dst_mask */
b34976b6 405 TRUE), /* pcrel_offset */
5bd4f169
AM		 406
407 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
408 symbol. */
409 HOWTO (R_PPC64_GOT16, /* type */
410 0, /* rightshift */
411 1, /* size (0 = byte, 1 = short, 2 = long) */
412 16, /* bitsize */
b34976b6 413 FALSE, /* pc_relative */
5bd4f169
AM		 414 0, /* bitpos */
415 complain_overflow_signed, /* complain_on_overflow */
805fc799 416 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 417 "R_PPC64_GOT16", /* name */
b34976b6 418 FALSE, /* partial_inplace */
5bd4f169
AM		 419 0, /* src_mask */
420 0xffff, /* dst_mask */
b34976b6 421 FALSE), /* pcrel_offset */
5bd4f169
AM		 422
423 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
424 the symbol. */
425 HOWTO (R_PPC64_GOT16_LO, /* type */
426 0, /* rightshift */
427 1, /* size (0 = byte, 1 = short, 2 = long) */
428 16, /* bitsize */
b34976b6 429 FALSE, /* pc_relative */
5bd4f169
AM		 430 0, /* bitpos */
431 complain_overflow_dont, /* complain_on_overflow */
805fc799 432 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 433 "R_PPC64_GOT16_LO", /* name */
b34976b6 434 FALSE, /* partial_inplace */
5bd4f169
AM		 435 0, /* src_mask */
436 0xffff, /* dst_mask */
b34976b6 437 FALSE), /* pcrel_offset */
5bd4f169
AM		 438
439 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
440 the symbol. */
441 HOWTO (R_PPC64_GOT16_HI, /* type */
442 16, /* rightshift */
443 1, /* size (0 = byte, 1 = short, 2 = long) */
444 16, /* bitsize */
b34976b6 445 FALSE, /* pc_relative */
5bd4f169
AM		 446 0, /* bitpos */
447 complain_overflow_dont,/* complain_on_overflow */
805fc799 448 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 449 "R_PPC64_GOT16_HI", /* name */
b34976b6 450 FALSE, /* partial_inplace */
5bd4f169
AM		 451 0, /* src_mask */
452 0xffff, /* dst_mask */
b34976b6 453 FALSE), /* pcrel_offset */
5bd4f169
AM		 454
455 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
456 the symbol. */
457 HOWTO (R_PPC64_GOT16_HA, /* type */
458 16, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
b34976b6 461 FALSE, /* pc_relative */
5bd4f169
AM		 462 0, /* bitpos */
463 complain_overflow_dont,/* complain_on_overflow */
805fc799 464 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 465 "R_PPC64_GOT16_HA", /* name */
b34976b6 466 FALSE, /* partial_inplace */
5bd4f169
AM		 467 0, /* src_mask */
468 0xffff, /* dst_mask */
b34976b6 469 FALSE), /* pcrel_offset */
5bd4f169
AM		 470
471 /* This is used only by the dynamic linker. The symbol should exist
472 both in the object being run and in some shared library. The
473 dynamic linker copies the data addressed by the symbol from the
474 shared library into the object, because the object being
475 run has to have the data at some particular address. */
476 HOWTO (R_PPC64_COPY, /* type */
477 0, /* rightshift */
f5e87a1d
AM		 478 0, /* this one is variable size */
479 0, /* bitsize */
b34976b6 480 FALSE, /* pc_relative */
5bd4f169 481 0, /* bitpos */
f5e87a1d
AM		 482 complain_overflow_dont, /* complain_on_overflow */
483 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 484 "R_PPC64_COPY", /* name */
b34976b6 485 FALSE, /* partial_inplace */
5bd4f169
AM		 486 0, /* src_mask */
487 0, /* dst_mask */
b34976b6 488 FALSE), /* pcrel_offset */
5bd4f169
AM		 489
490 /* Like R_PPC64_ADDR64, but used when setting global offset table
491 entries. */
492 HOWTO (R_PPC64_GLOB_DAT, /* type */
493 0, /* rightshift */
494 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
495 64, /* bitsize */
b34976b6 496 FALSE, /* pc_relative */
5bd4f169
AM		 497 0, /* bitpos */
498 complain_overflow_dont, /* complain_on_overflow */
805fc799 499 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 500 "R_PPC64_GLOB_DAT", /* name */
b34976b6 501 FALSE, /* partial_inplace */
5bd4f169 502 0, /* src_mask */
f5e87a1d 503 ONES (64), /* dst_mask */
b34976b6 504 FALSE), /* pcrel_offset */
5bd4f169
AM		 505
506 /* Created by the link editor. Marks a procedure linkage table
507 entry for a symbol. */
508 HOWTO (R_PPC64_JMP_SLOT, /* type */
509 0, /* rightshift */
510 0, /* size (0 = byte, 1 = short, 2 = long) */
511 0, /* bitsize */
b34976b6 512 FALSE, /* pc_relative */
5bd4f169
AM		 513 0, /* bitpos */
514 complain_overflow_dont, /* complain_on_overflow */
805fc799 515 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 516 "R_PPC64_JMP_SLOT", /* name */
b34976b6 517 FALSE, /* partial_inplace */
5bd4f169
AM		 518 0, /* src_mask */
519 0, /* dst_mask */
b34976b6 520 FALSE), /* pcrel_offset */
5bd4f169
AM		 521
522 /* Used only by the dynamic linker. When the object is run, this
523 doubleword64 is set to the load address of the object, plus the
524 addend. */
525 HOWTO (R_PPC64_RELATIVE, /* type */
526 0, /* rightshift */
527 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
528 64, /* bitsize */
b34976b6 529 FALSE, /* pc_relative */
5bd4f169
AM		 530 0, /* bitpos */
531 complain_overflow_dont, /* complain_on_overflow */
532 bfd_elf_generic_reloc, /* special_function */
533 "R_PPC64_RELATIVE", /* name */
b34976b6 534 FALSE, /* partial_inplace */
5bd4f169 535 0, /* src_mask */
f5e87a1d 536 ONES (64), /* dst_mask */
b34976b6 537 FALSE), /* pcrel_offset */
5bd4f169
AM		 538
539 /* Like R_PPC64_ADDR32, but may be unaligned. */
540 HOWTO (R_PPC64_UADDR32, /* type */
541 0, /* rightshift */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
543 32, /* bitsize */
b34976b6 544 FALSE, /* pc_relative */
5bd4f169
AM		 545 0, /* bitpos */
546 complain_overflow_bitfield, /* complain_on_overflow */
547 bfd_elf_generic_reloc, /* special_function */
548 "R_PPC64_UADDR32", /* name */
b34976b6 549 FALSE, /* partial_inplace */
5bd4f169
AM		 550 0, /* src_mask */
551 0xffffffff, /* dst_mask */
b34976b6 552 FALSE), /* pcrel_offset */
5bd4f169
AM		 553
554 /* Like R_PPC64_ADDR16, but may be unaligned. */
555 HOWTO (R_PPC64_UADDR16, /* type */
556 0, /* rightshift */
557 1, /* size (0 = byte, 1 = short, 2 = long) */
558 16, /* bitsize */
b34976b6 559 FALSE, /* pc_relative */
5bd4f169
AM		 560 0, /* bitpos */
561 complain_overflow_bitfield, /* complain_on_overflow */
562 bfd_elf_generic_reloc, /* special_function */
563 "R_PPC64_UADDR16", /* name */
b34976b6 564 FALSE, /* partial_inplace */
5bd4f169
AM		 565 0, /* src_mask */
566 0xffff, /* dst_mask */
b34976b6 567 FALSE), /* pcrel_offset */
5bd4f169
AM		 568
569 /* 32-bit PC relative. */
570 HOWTO (R_PPC64_REL32, /* type */
571 0, /* rightshift */
572 2, /* size (0 = byte, 1 = short, 2 = long) */
573 32, /* bitsize */
b34976b6 574 TRUE, /* pc_relative */
5bd4f169 575 0, /* bitpos */
cedb70c5 576 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM		 577 complain_overflow_signed, /* complain_on_overflow */
578 bfd_elf_generic_reloc, /* special_function */
579 "R_PPC64_REL32", /* name */
b34976b6 580 FALSE, /* partial_inplace */
5bd4f169
AM		 581 0, /* src_mask */
582 0xffffffff, /* dst_mask */
b34976b6 583 TRUE), /* pcrel_offset */
5bd4f169 584
10ed1bba 585 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 586 HOWTO (R_PPC64_PLT32, /* type */
587 0, /* rightshift */
588 2, /* size (0 = byte, 1 = short, 2 = long) */
589 32, /* bitsize */
b34976b6 590 FALSE, /* pc_relative */
5bd4f169
AM		 591 0, /* bitpos */
592 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 593 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 594 "R_PPC64_PLT32", /* name */
b34976b6 595 FALSE, /* partial_inplace */
5bd4f169 596 0, /* src_mask */
f5e87a1d 597 0xffffffff, /* dst_mask */
b34976b6 598 FALSE), /* pcrel_offset */
5bd4f169
AM		 599
600 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
601 FIXME: R_PPC64_PLTREL32 not supported. */
602 HOWTO (R_PPC64_PLTREL32, /* type */
603 0, /* rightshift */
604 2, /* size (0 = byte, 1 = short, 2 = long) */
605 32, /* bitsize */
b34976b6 606 TRUE, /* pc_relative */
5bd4f169
AM		 607 0, /* bitpos */
608 complain_overflow_signed, /* complain_on_overflow */
609 bfd_elf_generic_reloc, /* special_function */
610 "R_PPC64_PLTREL32", /* name */
b34976b6 611 FALSE, /* partial_inplace */
5bd4f169 612 0, /* src_mask */
f5e87a1d 613 0xffffffff, /* dst_mask */
b34976b6 614 TRUE), /* pcrel_offset */
5bd4f169
AM		 615
616 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
617 the symbol. */
618 HOWTO (R_PPC64_PLT16_LO, /* type */
619 0, /* rightshift */
620 1, /* size (0 = byte, 1 = short, 2 = long) */
621 16, /* bitsize */
b34976b6 622 FALSE, /* pc_relative */
5bd4f169
AM		 623 0, /* bitpos */
624 complain_overflow_dont, /* complain_on_overflow */
805fc799 625 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 626 "R_PPC64_PLT16_LO", /* name */
b34976b6 627 FALSE, /* partial_inplace */
5bd4f169
AM		 628 0, /* src_mask */
629 0xffff, /* dst_mask */
b34976b6 630 FALSE), /* pcrel_offset */
5bd4f169
AM		 631
632 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
633 the symbol. */
634 HOWTO (R_PPC64_PLT16_HI, /* type */
635 16, /* rightshift */
636 1, /* size (0 = byte, 1 = short, 2 = long) */
637 16, /* bitsize */
b34976b6 638 FALSE, /* pc_relative */
5bd4f169
AM		 639 0, /* bitpos */
640 complain_overflow_dont, /* complain_on_overflow */
805fc799 641 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 642 "R_PPC64_PLT16_HI", /* name */
b34976b6 643 FALSE, /* partial_inplace */
5bd4f169
AM		 644 0, /* src_mask */
645 0xffff, /* dst_mask */
b34976b6 646 FALSE), /* pcrel_offset */
5bd4f169
AM		 647
648 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
649 the symbol. */
650 HOWTO (R_PPC64_PLT16_HA, /* type */
651 16, /* rightshift */
652 1, /* size (0 = byte, 1 = short, 2 = long) */
653 16, /* bitsize */
b34976b6 654 FALSE, /* pc_relative */
5bd4f169
AM		 655 0, /* bitpos */
656 complain_overflow_dont, /* complain_on_overflow */
805fc799 657 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 658 "R_PPC64_PLT16_HA", /* name */
b34976b6 659 FALSE, /* partial_inplace */
5bd4f169
AM		 660 0, /* src_mask */
661 0xffff, /* dst_mask */
b34976b6 662 FALSE), /* pcrel_offset */
5bd4f169 663
c061c2d8 664 /* 16-bit section relative relocation. */
5bd4f169
AM		 665 HOWTO (R_PPC64_SECTOFF, /* type */
666 0, /* rightshift */
c061c2d8
AM		 667 1, /* size (0 = byte, 1 = short, 2 = long) */
668 16, /* bitsize */
b34976b6 669 FALSE, /* pc_relative */
5bd4f169
AM		 670 0, /* bitpos */
671 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 672 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 673 "R_PPC64_SECTOFF", /* name */
b34976b6 674 FALSE, /* partial_inplace */
5bd4f169 675 0, /* src_mask */
c061c2d8 676 0xffff, /* dst_mask */
b34976b6 677 FALSE), /* pcrel_offset */
5bd4f169 678
c061c2d8 679 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM		 680 HOWTO (R_PPC64_SECTOFF_LO, /* type */
681 0, /* rightshift */
682 1, /* size (0 = byte, 1 = short, 2 = long) */
683 16, /* bitsize */
b34976b6 684 FALSE, /* pc_relative */
5bd4f169
AM		 685 0, /* bitpos */
686 complain_overflow_dont, /* complain_on_overflow */
805fc799 687 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 688 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 689 FALSE, /* partial_inplace */
5bd4f169
AM		 690 0, /* src_mask */
691 0xffff, /* dst_mask */
b34976b6 692 FALSE), /* pcrel_offset */
5bd4f169
AM		 693
694 /* 16-bit upper half section relative relocation. */
695 HOWTO (R_PPC64_SECTOFF_HI, /* type */
696 16, /* rightshift */
697 1, /* size (0 = byte, 1 = short, 2 = long) */
698 16, /* bitsize */
b34976b6 699 FALSE, /* pc_relative */
5bd4f169
AM		 700 0, /* bitpos */
701 complain_overflow_dont, /* complain_on_overflow */
805fc799 702 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 703 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 704 FALSE, /* partial_inplace */
5bd4f169
AM		 705 0, /* src_mask */
706 0xffff, /* dst_mask */
b34976b6 707 FALSE), /* pcrel_offset */
5bd4f169
AM		 708
709 /* 16-bit upper half adjusted section relative relocation. */
710 HOWTO (R_PPC64_SECTOFF_HA, /* type */
711 16, /* rightshift */
712 1, /* size (0 = byte, 1 = short, 2 = long) */
713 16, /* bitsize */
b34976b6 714 FALSE, /* pc_relative */
5bd4f169
AM		 715 0, /* bitpos */
716 complain_overflow_dont, /* complain_on_overflow */
805fc799 717 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 718 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 719 FALSE, /* partial_inplace */
5bd4f169
AM		 720 0, /* src_mask */
721 0xffff, /* dst_mask */
b34976b6 722 FALSE), /* pcrel_offset */
5bd4f169 723
04c9666a
AM		 724 /* Like R_PPC64_REL24 without touching the two least significant bits. */
725 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM		 726 2, /* rightshift */
727 2, /* size (0 = byte, 1 = short, 2 = long) */
728 30, /* bitsize */
b34976b6 729 TRUE, /* pc_relative */
5bd4f169
AM		 730 0, /* bitpos */
731 complain_overflow_dont, /* complain_on_overflow */
732 bfd_elf_generic_reloc, /* special_function */
04c9666a 733 "R_PPC64_REL30", /* name */
b34976b6 734 FALSE, /* partial_inplace */
d006db6c 735 0, /* src_mask */
5bd4f169 736 0xfffffffc, /* dst_mask */
b34976b6 737 TRUE), /* pcrel_offset */
5bd4f169
AM		 738
739 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
740
741 /* A standard 64-bit relocation. */
742 HOWTO (R_PPC64_ADDR64, /* type */
743 0, /* rightshift */
744 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
745 64, /* bitsize */
b34976b6 746 FALSE, /* pc_relative */
5bd4f169
AM		 747 0, /* bitpos */
748 complain_overflow_dont, /* complain_on_overflow */
749 bfd_elf_generic_reloc, /* special_function */
750 "R_PPC64_ADDR64", /* name */
b34976b6 751 FALSE, /* partial_inplace */
5bd4f169 752 0, /* src_mask */
f5e87a1d 753 ONES (64), /* dst_mask */
b34976b6 754 FALSE), /* pcrel_offset */
5bd4f169
AM		 755
756 /* The bits 32-47 of an address. */
757 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
758 32, /* rightshift */
759 1, /* size (0 = byte, 1 = short, 2 = long) */
760 16, /* bitsize */
b34976b6 761 FALSE, /* pc_relative */
5bd4f169
AM		 762 0, /* bitpos */
763 complain_overflow_dont, /* complain_on_overflow */
764 bfd_elf_generic_reloc, /* special_function */
765 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 766 FALSE, /* partial_inplace */
5bd4f169
AM		 767 0, /* src_mask */
768 0xffff, /* dst_mask */
b34976b6 769 FALSE), /* pcrel_offset */
5bd4f169
AM		 770
771 /* The bits 32-47 of an address, plus 1 if the contents of the low
772 16 bits, treated as a signed number, is negative. */
773 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
774 32, /* rightshift */
775 1, /* size (0 = byte, 1 = short, 2 = long) */
776 16, /* bitsize */
b34976b6 777 FALSE, /* pc_relative */
5bd4f169
AM		 778 0, /* bitpos */
779 complain_overflow_dont, /* complain_on_overflow */
805fc799 780 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 781 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 782 FALSE, /* partial_inplace */
5bd4f169
AM		 783 0, /* src_mask */
784 0xffff, /* dst_mask */
b34976b6 785 FALSE), /* pcrel_offset */
5bd4f169
AM		 786
787 /* The bits 48-63 of an address. */
788 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
789 48, /* rightshift */
790 1, /* size (0 = byte, 1 = short, 2 = long) */
791 16, /* bitsize */
b34976b6 792 FALSE, /* pc_relative */
5bd4f169
AM		 793 0, /* bitpos */
794 complain_overflow_dont, /* complain_on_overflow */
795 bfd_elf_generic_reloc, /* special_function */
796 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 797 FALSE, /* partial_inplace */
5bd4f169
AM		 798 0, /* src_mask */
799 0xffff, /* dst_mask */
b34976b6 800 FALSE), /* pcrel_offset */
5bd4f169
AM		 801
802 /* The bits 48-63 of an address, plus 1 if the contents of the low
803 16 bits, treated as a signed number, is negative. */
804 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
805 48, /* rightshift */
806 1, /* size (0 = byte, 1 = short, 2 = long) */
807 16, /* bitsize */
b34976b6 808 FALSE, /* pc_relative */
5bd4f169
AM		 809 0, /* bitpos */
810 complain_overflow_dont, /* complain_on_overflow */
805fc799 811 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 812 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 813 FALSE, /* partial_inplace */
5bd4f169
AM		 814 0, /* src_mask */
815 0xffff, /* dst_mask */
b34976b6 816 FALSE), /* pcrel_offset */
5bd4f169
AM		 817
818 /* Like ADDR64, but may be unaligned. */
819 HOWTO (R_PPC64_UADDR64, /* type */
820 0, /* rightshift */
821 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
822 64, /* bitsize */
b34976b6 823 FALSE, /* pc_relative */
5bd4f169
AM		 824 0, /* bitpos */
825 complain_overflow_dont, /* complain_on_overflow */
826 bfd_elf_generic_reloc, /* special_function */
827 "R_PPC64_UADDR64", /* name */
b34976b6 828 FALSE, /* partial_inplace */
5bd4f169 829 0, /* src_mask */
f5e87a1d 830 ONES (64), /* dst_mask */
b34976b6 831 FALSE), /* pcrel_offset */
5bd4f169
AM		 832
833 /* 64-bit relative relocation. */
834 HOWTO (R_PPC64_REL64, /* type */
835 0, /* rightshift */
836 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
837 64, /* bitsize */
b34976b6 838 TRUE, /* pc_relative */
5bd4f169
AM		 839 0, /* bitpos */
840 complain_overflow_dont, /* complain_on_overflow */
841 bfd_elf_generic_reloc, /* special_function */
842 "R_PPC64_REL64", /* name */
b34976b6 843 FALSE, /* partial_inplace */
5bd4f169 844 0, /* src_mask */
f5e87a1d 845 ONES (64), /* dst_mask */
b34976b6 846 TRUE), /* pcrel_offset */
5bd4f169 847
cedb70c5 848 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM		 849 HOWTO (R_PPC64_PLT64, /* type */
850 0, /* rightshift */
851 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
852 64, /* bitsize */
b34976b6 853 FALSE, /* pc_relative */
5bd4f169
AM		 854 0, /* bitpos */
855 complain_overflow_dont, /* complain_on_overflow */
805fc799 856 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 857 "R_PPC64_PLT64", /* name */
b34976b6 858 FALSE, /* partial_inplace */
5bd4f169 859 0, /* src_mask */
f5e87a1d 860 ONES (64), /* dst_mask */
b34976b6 861 FALSE), /* pcrel_offset */
5bd4f169
AM		 862
863 /* 64-bit PC relative relocation to the symbol's procedure linkage
864 table. */
865 /* FIXME: R_PPC64_PLTREL64 not supported. */
866 HOWTO (R_PPC64_PLTREL64, /* type */
867 0, /* rightshift */
868 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
869 64, /* bitsize */
b34976b6 870 TRUE, /* pc_relative */
5bd4f169
AM		 871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
805fc799 873 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 874 "R_PPC64_PLTREL64", /* name */
b34976b6 875 FALSE, /* partial_inplace */
5bd4f169 876 0, /* src_mask */
f5e87a1d 877 ONES (64), /* dst_mask */
b34976b6 878 TRUE), /* pcrel_offset */
5bd4f169
AM		 879
880 /* 16 bit TOC-relative relocation. */
881
882 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
883 HOWTO (R_PPC64_TOC16, /* type */
884 0, /* rightshift */
885 1, /* size (0 = byte, 1 = short, 2 = long) */
886 16, /* bitsize */
b34976b6 887 FALSE, /* pc_relative */
5bd4f169
AM		 888 0, /* bitpos */
889 complain_overflow_signed, /* complain_on_overflow */
805fc799 890 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 891 "R_PPC64_TOC16", /* name */
b34976b6 892 FALSE, /* partial_inplace */
5bd4f169
AM		 893 0, /* src_mask */
894 0xffff, /* dst_mask */
b34976b6 895 FALSE), /* pcrel_offset */
5bd4f169
AM		 896
897 /* 16 bit TOC-relative relocation without overflow. */
898
899 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
900 HOWTO (R_PPC64_TOC16_LO, /* type */
901 0, /* rightshift */
902 1, /* size (0 = byte, 1 = short, 2 = long) */
903 16, /* bitsize */
b34976b6 904 FALSE, /* pc_relative */
5bd4f169
AM		 905 0, /* bitpos */
906 complain_overflow_dont, /* complain_on_overflow */
805fc799 907 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 908 "R_PPC64_TOC16_LO", /* name */
b34976b6 909 FALSE, /* partial_inplace */
5bd4f169
AM		 910 0, /* src_mask */
911 0xffff, /* dst_mask */
b34976b6 912 FALSE), /* pcrel_offset */
5bd4f169
AM		 913
914 /* 16 bit TOC-relative relocation, high 16 bits. */
915
916 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
917 HOWTO (R_PPC64_TOC16_HI, /* type */
918 16, /* rightshift */
919 1, /* size (0 = byte, 1 = short, 2 = long) */
920 16, /* bitsize */
b34976b6 921 FALSE, /* pc_relative */
5bd4f169
AM		 922 0, /* bitpos */
923 complain_overflow_dont, /* complain_on_overflow */
805fc799 924 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 925 "R_PPC64_TOC16_HI", /* name */
b34976b6 926 FALSE, /* partial_inplace */
5bd4f169
AM		 927 0, /* src_mask */
928 0xffff, /* dst_mask */
b34976b6 929 FALSE), /* pcrel_offset */
5bd4f169
AM		 930
931 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
932 contents of the low 16 bits, treated as a signed number, is
933 negative. */
934
935 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
936 HOWTO (R_PPC64_TOC16_HA, /* type */
937 16, /* rightshift */
938 1, /* size (0 = byte, 1 = short, 2 = long) */
939 16, /* bitsize */
b34976b6 940 FALSE, /* pc_relative */
5bd4f169
AM		 941 0, /* bitpos */
942 complain_overflow_dont, /* complain_on_overflow */
805fc799 943 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 944 "R_PPC64_TOC16_HA", /* name */
b34976b6 945 FALSE, /* partial_inplace */
5bd4f169
AM		 946 0, /* src_mask */
947 0xffff, /* dst_mask */
b34976b6 948 FALSE), /* pcrel_offset */
5bd4f169
AM		 949
950 /* 64-bit relocation; insert value of TOC base (.TOC.). */
951
952 /* R_PPC64_TOC 51 doubleword64 .TOC. */
953 HOWTO (R_PPC64_TOC, /* type */
954 0, /* rightshift */
955 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
956 64, /* bitsize */
b34976b6 957 FALSE, /* pc_relative */
5bd4f169
AM		 958 0, /* bitpos */
959 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 960 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 961 "R_PPC64_TOC", /* name */
b34976b6 962 FALSE, /* partial_inplace */
5bd4f169 963 0, /* src_mask */
f5e87a1d 964 ONES (64), /* dst_mask */
b34976b6 965 FALSE), /* pcrel_offset */
5bd4f169
AM		 966
967 /* Like R_PPC64_GOT16, but also informs the link editor that the
968 value to relocate may (!) refer to a PLT entry which the link
969 editor (a) may replace with the symbol value. If the link editor
970 is unable to fully resolve the symbol, it may (b) create a PLT
971 entry and store the address to the new PLT entry in the GOT.
972 This permits lazy resolution of function symbols at run time.
973 The link editor may also skip all of this and just (c) emit a
974 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
975 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
976 HOWTO (R_PPC64_PLTGOT16, /* type */
977 0, /* rightshift */
978 1, /* size (0 = byte, 1 = short, 2 = long) */
979 16, /* bitsize */
b34976b6 980 FALSE, /* pc_relative */
5bd4f169
AM		 981 0, /* bitpos */
982 complain_overflow_signed, /* complain_on_overflow */
805fc799 983 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM		 984 "R_PPC64_PLTGOT16", /* name */
985 FALSE, /* partial_inplace */
986 0, /* src_mask */
987 0xffff, /* dst_mask */
988 FALSE), /* pcrel_offset */
989
990 /* Like R_PPC64_PLTGOT16, but without overflow. */
991 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
992 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
993 0, /* rightshift */
994 1, /* size (0 = byte, 1 = short, 2 = long) */
995 16, /* bitsize */
996 FALSE, /* pc_relative */
997 0, /* bitpos */
998 complain_overflow_dont, /* complain_on_overflow */
999 ppc64_elf_unhandled_reloc, /* special_function */
1000 "R_PPC64_PLTGOT16_LO", /* name */
1001 FALSE, /* partial_inplace */
1002 0, /* src_mask */
1003 0xffff, /* dst_mask */
1004 FALSE), /* pcrel_offset */
1005
1006 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1007 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1008 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1009 16, /* rightshift */
1010 1, /* size (0 = byte, 1 = short, 2 = long) */
1011 16, /* bitsize */
1012 FALSE, /* pc_relative */
1013 0, /* bitpos */
1014 complain_overflow_dont, /* complain_on_overflow */
1015 ppc64_elf_unhandled_reloc, /* special_function */
1016 "R_PPC64_PLTGOT16_HI", /* name */
1017 FALSE, /* partial_inplace */
1018 0, /* src_mask */
1019 0xffff, /* dst_mask */
1020 FALSE), /* pcrel_offset */
1021
1022 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1023 1 if the contents of the low 16 bits, treated as a signed number,
1024 is negative. */
1025 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1026 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1027 16, /* rightshift */
1028 1, /* size (0 = byte, 1 = short, 2 = long) */
1029 16, /* bitsize */
1030 FALSE, /* pc_relative */
1031 0, /* bitpos */
1032 complain_overflow_dont,/* complain_on_overflow */
1033 ppc64_elf_unhandled_reloc, /* special_function */
1034 "R_PPC64_PLTGOT16_HA", /* name */
1035 FALSE, /* partial_inplace */
1036 0, /* src_mask */
1037 0xffff, /* dst_mask */
1038 FALSE), /* pcrel_offset */
1039
1040 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1041 HOWTO (R_PPC64_ADDR16_DS, /* type */
1042 0, /* rightshift */
1043 1, /* size (0 = byte, 1 = short, 2 = long) */
1044 16, /* bitsize */
1045 FALSE, /* pc_relative */
1046 0, /* bitpos */
1047 complain_overflow_bitfield, /* complain_on_overflow */
1048 bfd_elf_generic_reloc, /* special_function */
1049 "R_PPC64_ADDR16_DS", /* name */
1050 FALSE, /* partial_inplace */
1051 0, /* src_mask */
1052 0xfffc, /* dst_mask */
1053 FALSE), /* pcrel_offset */
1054
1055 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1056 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1057 0, /* rightshift */
1058 1, /* size (0 = byte, 1 = short, 2 = long) */
1059 16, /* bitsize */
1060 FALSE, /* pc_relative */
1061 0, /* bitpos */
1062 complain_overflow_dont,/* complain_on_overflow */
1063 bfd_elf_generic_reloc, /* special_function */
1064 "R_PPC64_ADDR16_LO_DS",/* name */
1065 FALSE, /* partial_inplace */
1066 0, /* src_mask */
1067 0xfffc, /* dst_mask */
1068 FALSE), /* pcrel_offset */
1069
1070 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1071 HOWTO (R_PPC64_GOT16_DS, /* type */
1072 0, /* rightshift */
1073 1, /* size (0 = byte, 1 = short, 2 = long) */
1074 16, /* bitsize */
1075 FALSE, /* pc_relative */
1076 0, /* bitpos */
1077 complain_overflow_signed, /* complain_on_overflow */
1078 ppc64_elf_unhandled_reloc, /* special_function */
1079 "R_PPC64_GOT16_DS", /* name */
1080 FALSE, /* partial_inplace */
1081 0, /* src_mask */
1082 0xfffc, /* dst_mask */
1083 FALSE), /* pcrel_offset */
1084
1085 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1086 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1087 0, /* rightshift */
1088 1, /* size (0 = byte, 1 = short, 2 = long) */
1089 16, /* bitsize */
1090 FALSE, /* pc_relative */
1091 0, /* bitpos */
1092 complain_overflow_dont, /* complain_on_overflow */
1093 ppc64_elf_unhandled_reloc, /* special_function */
1094 "R_PPC64_GOT16_LO_DS", /* name */
1095 FALSE, /* partial_inplace */
1096 0, /* src_mask */
1097 0xfffc, /* dst_mask */
1098 FALSE), /* pcrel_offset */
1099
1100 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1101 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1102 0, /* rightshift */
1103 1, /* size (0 = byte, 1 = short, 2 = long) */
1104 16, /* bitsize */
1105 FALSE, /* pc_relative */
1106 0, /* bitpos */
1107 complain_overflow_dont, /* complain_on_overflow */
1108 ppc64_elf_unhandled_reloc, /* special_function */
1109 "R_PPC64_PLT16_LO_DS", /* name */
1110 FALSE, /* partial_inplace */
1111 0, /* src_mask */
1112 0xfffc, /* dst_mask */
1113 FALSE), /* pcrel_offset */
1114
1115 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1116 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1117 0, /* rightshift */
1118 1, /* size (0 = byte, 1 = short, 2 = long) */
1119 16, /* bitsize */
1120 FALSE, /* pc_relative */
1121 0, /* bitpos */
1122 complain_overflow_bitfield, /* complain_on_overflow */
1123 ppc64_elf_sectoff_reloc, /* special_function */
1124 "R_PPC64_SECTOFF_DS", /* name */
1125 FALSE, /* partial_inplace */
1126 0, /* src_mask */
1127 0xfffc, /* dst_mask */
1128 FALSE), /* pcrel_offset */
1129
1130 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1131 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1132 0, /* rightshift */
1133 1, /* size (0 = byte, 1 = short, 2 = long) */
1134 16, /* bitsize */
1135 FALSE, /* pc_relative */
1136 0, /* bitpos */
1137 complain_overflow_dont, /* complain_on_overflow */
1138 ppc64_elf_sectoff_reloc, /* special_function */
1139 "R_PPC64_SECTOFF_LO_DS",/* name */
1140 FALSE, /* partial_inplace */
1141 0, /* src_mask */
1142 0xfffc, /* dst_mask */
1143 FALSE), /* pcrel_offset */
1144
1145 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1146 HOWTO (R_PPC64_TOC16_DS, /* type */
1147 0, /* rightshift */
1148 1, /* size (0 = byte, 1 = short, 2 = long) */
1149 16, /* bitsize */
1150 FALSE, /* pc_relative */
1151 0, /* bitpos */
1152 complain_overflow_signed, /* complain_on_overflow */
1153 ppc64_elf_toc_reloc, /* special_function */
1154 "R_PPC64_TOC16_DS", /* name */
1155 FALSE, /* partial_inplace */
1156 0, /* src_mask */
1157 0xfffc, /* dst_mask */
1158 FALSE), /* pcrel_offset */
1159
1160 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1161 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1162 0, /* rightshift */
1163 1, /* size (0 = byte, 1 = short, 2 = long) */
1164 16, /* bitsize */
1165 FALSE, /* pc_relative */
1166 0, /* bitpos */
1167 complain_overflow_dont, /* complain_on_overflow */
1168 ppc64_elf_toc_reloc, /* special_function */
1169 "R_PPC64_TOC16_LO_DS", /* name */
1170 FALSE, /* partial_inplace */
1171 0, /* src_mask */
1172 0xfffc, /* dst_mask */
1173 FALSE), /* pcrel_offset */
1174
1175 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1176 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1177 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1178 0, /* rightshift */
1179 1, /* size (0 = byte, 1 = short, 2 = long) */
1180 16, /* bitsize */
1181 FALSE, /* pc_relative */
1182 0, /* bitpos */
1183 complain_overflow_signed, /* complain_on_overflow */
1184 ppc64_elf_unhandled_reloc, /* special_function */
1185 "R_PPC64_PLTGOT16_DS", /* name */
1186 FALSE, /* partial_inplace */
1187 0, /* src_mask */
1188 0xfffc, /* dst_mask */
1189 FALSE), /* pcrel_offset */
1190
1191 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1192 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1193 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1194 0, /* rightshift */
1195 1, /* size (0 = byte, 1 = short, 2 = long) */
1196 16, /* bitsize */
1197 FALSE, /* pc_relative */
1198 0, /* bitpos */
1199 complain_overflow_dont, /* complain_on_overflow */
1200 ppc64_elf_unhandled_reloc, /* special_function */
1201 "R_PPC64_PLTGOT16_LO_DS",/* name */
1202 FALSE, /* partial_inplace */
1203 0, /* src_mask */
1204 0xfffc, /* dst_mask */
1205 FALSE), /* pcrel_offset */
1206
1207 /* Marker reloc for TLS. */
1208 HOWTO (R_PPC64_TLS,
1209 0, /* rightshift */
1210 2, /* size (0 = byte, 1 = short, 2 = long) */
1211 32, /* bitsize */
1212 FALSE, /* pc_relative */
1213 0, /* bitpos */
1214 complain_overflow_dont, /* complain_on_overflow */
1215 bfd_elf_generic_reloc, /* special_function */
1216 "R_PPC64_TLS", /* name */
1217 FALSE, /* partial_inplace */
1218 0, /* src_mask */
1219 0, /* dst_mask */
1220 FALSE), /* pcrel_offset */
1221
1222 /* Computes the load module index of the load module that contains the
1223 definition of its TLS sym. */
1224 HOWTO (R_PPC64_DTPMOD64,
1225 0, /* rightshift */
1226 4, /* size (0 = byte, 1 = short, 2 = long) */
1227 64, /* bitsize */
1228 FALSE, /* pc_relative */
1229 0, /* bitpos */
1230 complain_overflow_dont, /* complain_on_overflow */
1231 ppc64_elf_unhandled_reloc, /* special_function */
1232 "R_PPC64_DTPMOD64", /* name */
1233 FALSE, /* partial_inplace */
1234 0, /* src_mask */
1235 ONES (64), /* dst_mask */
1236 FALSE), /* pcrel_offset */
1237
1238 /* Computes a dtv-relative displacement, the difference between the value
1239 of sym+add and the base address of the thread-local storage block that
1240 contains the definition of sym, minus 0x8000. */
1241 HOWTO (R_PPC64_DTPREL64,
1242 0, /* rightshift */
1243 4, /* size (0 = byte, 1 = short, 2 = long) */
1244 64, /* bitsize */
1245 FALSE, /* pc_relative */
1246 0, /* bitpos */
1247 complain_overflow_dont, /* complain_on_overflow */
1248 ppc64_elf_unhandled_reloc, /* special_function */
1249 "R_PPC64_DTPREL64", /* name */
1250 FALSE, /* partial_inplace */
1251 0, /* src_mask */
1252 ONES (64), /* dst_mask */
1253 FALSE), /* pcrel_offset */
1254
1255 /* A 16 bit dtprel reloc. */
1256 HOWTO (R_PPC64_DTPREL16,
1257 0, /* rightshift */
1258 1, /* size (0 = byte, 1 = short, 2 = long) */
1259 16, /* bitsize */
1260 FALSE, /* pc_relative */
1261 0, /* bitpos */
1262 complain_overflow_signed, /* complain_on_overflow */
1263 ppc64_elf_unhandled_reloc, /* special_function */
1264 "R_PPC64_DTPREL16", /* name */
1265 FALSE, /* partial_inplace */
1266 0, /* src_mask */
1267 0xffff, /* dst_mask */
1268 FALSE), /* pcrel_offset */
1269
1270 /* Like DTPREL16, but no overflow. */
1271 HOWTO (R_PPC64_DTPREL16_LO,
1272 0, /* rightshift */
1273 1, /* size (0 = byte, 1 = short, 2 = long) */
1274 16, /* bitsize */
1275 FALSE, /* pc_relative */
1276 0, /* bitpos */
1277 complain_overflow_dont, /* complain_on_overflow */
1278 ppc64_elf_unhandled_reloc, /* special_function */
1279 "R_PPC64_DTPREL16_LO", /* name */
1280 FALSE, /* partial_inplace */
1281 0, /* src_mask */
1282 0xffff, /* dst_mask */
1283 FALSE), /* pcrel_offset */
1284
1285 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1286 HOWTO (R_PPC64_DTPREL16_HI,
1287 16, /* rightshift */
1288 1, /* size (0 = byte, 1 = short, 2 = long) */
1289 16, /* bitsize */
1290 FALSE, /* pc_relative */
1291 0, /* bitpos */
1292 complain_overflow_dont, /* complain_on_overflow */
1293 ppc64_elf_unhandled_reloc, /* special_function */
1294 "R_PPC64_DTPREL16_HI", /* name */
1295 FALSE, /* partial_inplace */
1296 0, /* src_mask */
1297 0xffff, /* dst_mask */
1298 FALSE), /* pcrel_offset */
1299
1300 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1301 HOWTO (R_PPC64_DTPREL16_HA,
1302 16, /* rightshift */
1303 1, /* size (0 = byte, 1 = short, 2 = long) */
1304 16, /* bitsize */
1305 FALSE, /* pc_relative */
1306 0, /* bitpos */
1307 complain_overflow_dont, /* complain_on_overflow */
1308 ppc64_elf_unhandled_reloc, /* special_function */
1309 "R_PPC64_DTPREL16_HA", /* name */
1310 FALSE, /* partial_inplace */
1311 0, /* src_mask */
1312 0xffff, /* dst_mask */
1313 FALSE), /* pcrel_offset */
1314
1315 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1316 HOWTO (R_PPC64_DTPREL16_HIGHER,
1317 32, /* rightshift */
1318 1, /* size (0 = byte, 1 = short, 2 = long) */
1319 16, /* bitsize */
1320 FALSE, /* pc_relative */
1321 0, /* bitpos */
1322 complain_overflow_dont, /* complain_on_overflow */
1323 ppc64_elf_unhandled_reloc, /* special_function */
1324 "R_PPC64_DTPREL16_HIGHER", /* name */
1325 FALSE, /* partial_inplace */
1326 0, /* src_mask */
1327 0xffff, /* dst_mask */
1328 FALSE), /* pcrel_offset */
1329
1330 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1331 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1332 32, /* rightshift */
1333 1, /* size (0 = byte, 1 = short, 2 = long) */
1334 16, /* bitsize */
1335 FALSE, /* pc_relative */
1336 0, /* bitpos */
1337 complain_overflow_dont, /* complain_on_overflow */
1338 ppc64_elf_unhandled_reloc, /* special_function */
1339 "R_PPC64_DTPREL16_HIGHERA", /* name */
1340 FALSE, /* partial_inplace */
1341 0, /* src_mask */
1342 0xffff, /* dst_mask */
1343 FALSE), /* pcrel_offset */
1344
1345 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1346 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1347 48, /* rightshift */
1348 1, /* size (0 = byte, 1 = short, 2 = long) */
1349 16, /* bitsize */
1350 FALSE, /* pc_relative */
1351 0, /* bitpos */
1352 complain_overflow_dont, /* complain_on_overflow */
1353 ppc64_elf_unhandled_reloc, /* special_function */
1354 "R_PPC64_DTPREL16_HIGHEST", /* name */
1355 FALSE, /* partial_inplace */
1356 0, /* src_mask */
1357 0xffff, /* dst_mask */
1358 FALSE), /* pcrel_offset */
1359
1360 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1361 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1362 48, /* rightshift */
1363 1, /* size (0 = byte, 1 = short, 2 = long) */
1364 16, /* bitsize */
1365 FALSE, /* pc_relative */
1366 0, /* bitpos */
1367 complain_overflow_dont, /* complain_on_overflow */
1368 ppc64_elf_unhandled_reloc, /* special_function */
1369 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1370 FALSE, /* partial_inplace */
1371 0, /* src_mask */
1372 0xffff, /* dst_mask */
1373 FALSE), /* pcrel_offset */
1374
1375 /* Like DTPREL16, but for insns with a DS field. */
1376 HOWTO (R_PPC64_DTPREL16_DS,
1377 0, /* rightshift */
1378 1, /* size (0 = byte, 1 = short, 2 = long) */
1379 16, /* bitsize */
1380 FALSE, /* pc_relative */
1381 0, /* bitpos */
1382 complain_overflow_signed, /* complain_on_overflow */
1383 ppc64_elf_unhandled_reloc, /* special_function */
1384 "R_PPC64_DTPREL16_DS", /* name */
1385 FALSE, /* partial_inplace */
1386 0, /* src_mask */
1387 0xfffc, /* dst_mask */
1388 FALSE), /* pcrel_offset */
1389
1390 /* Like DTPREL16_DS, but no overflow. */
1391 HOWTO (R_PPC64_DTPREL16_LO_DS,
1392 0, /* rightshift */
1393 1, /* size (0 = byte, 1 = short, 2 = long) */
1394 16, /* bitsize */
1395 FALSE, /* pc_relative */
1396 0, /* bitpos */
1397 complain_overflow_dont, /* complain_on_overflow */
1398 ppc64_elf_unhandled_reloc, /* special_function */
1399 "R_PPC64_DTPREL16_LO_DS", /* name */
1400 FALSE, /* partial_inplace */
1401 0, /* src_mask */
1402 0xfffc, /* dst_mask */
1403 FALSE), /* pcrel_offset */
1404
1405 /* Computes a tp-relative displacement, the difference between the value of
1406 sym+add and the value of the thread pointer (r13). */
1407 HOWTO (R_PPC64_TPREL64,
1408 0, /* rightshift */
1409 4, /* size (0 = byte, 1 = short, 2 = long) */
1410 64, /* bitsize */
1411 FALSE, /* pc_relative */
1412 0, /* bitpos */
1413 complain_overflow_dont, /* complain_on_overflow */
1414 ppc64_elf_unhandled_reloc, /* special_function */
1415 "R_PPC64_TPREL64", /* name */
1416 FALSE, /* partial_inplace */
1417 0, /* src_mask */
1418 ONES (64), /* dst_mask */
1419 FALSE), /* pcrel_offset */
1420
1421 /* A 16 bit tprel reloc. */
1422 HOWTO (R_PPC64_TPREL16,
1423 0, /* rightshift */
1424 1, /* size (0 = byte, 1 = short, 2 = long) */
1425 16, /* bitsize */
1426 FALSE, /* pc_relative */
1427 0, /* bitpos */
1428 complain_overflow_signed, /* complain_on_overflow */
1429 ppc64_elf_unhandled_reloc, /* special_function */
1430 "R_PPC64_TPREL16", /* name */
1431 FALSE, /* partial_inplace */
1432 0, /* src_mask */
1433 0xffff, /* dst_mask */
1434 FALSE), /* pcrel_offset */
1435
1436 /* Like TPREL16, but no overflow. */
1437 HOWTO (R_PPC64_TPREL16_LO,
1438 0, /* rightshift */
1439 1, /* size (0 = byte, 1 = short, 2 = long) */
1440 16, /* bitsize */
1441 FALSE, /* pc_relative */
1442 0, /* bitpos */
1443 complain_overflow_dont, /* complain_on_overflow */
1444 ppc64_elf_unhandled_reloc, /* special_function */
1445 "R_PPC64_TPREL16_LO", /* name */
1446 FALSE, /* partial_inplace */
1447 0, /* src_mask */
1448 0xffff, /* dst_mask */
1449 FALSE), /* pcrel_offset */
1450
1451 /* Like TPREL16_LO, but next higher group of 16 bits. */
1452 HOWTO (R_PPC64_TPREL16_HI,
1453 16, /* rightshift */
1454 1, /* size (0 = byte, 1 = short, 2 = long) */
1455 16, /* bitsize */
1456 FALSE, /* pc_relative */
1457 0, /* bitpos */
1458 complain_overflow_dont, /* complain_on_overflow */
1459 ppc64_elf_unhandled_reloc, /* special_function */
1460 "R_PPC64_TPREL16_HI", /* name */
1461 FALSE, /* partial_inplace */
1462 0, /* src_mask */
1463 0xffff, /* dst_mask */
1464 FALSE), /* pcrel_offset */
1465
1466 /* Like TPREL16_HI, but adjust for low 16 bits. */
1467 HOWTO (R_PPC64_TPREL16_HA,
1468 16, /* rightshift */
1469 1, /* size (0 = byte, 1 = short, 2 = long) */
1470 16, /* bitsize */
1471 FALSE, /* pc_relative */
1472 0, /* bitpos */
1473 complain_overflow_dont, /* complain_on_overflow */
1474 ppc64_elf_unhandled_reloc, /* special_function */
1475 "R_PPC64_TPREL16_HA", /* name */
1476 FALSE, /* partial_inplace */
1477 0, /* src_mask */
1478 0xffff, /* dst_mask */
1479 FALSE), /* pcrel_offset */
1480
1481 /* Like TPREL16_HI, but next higher group of 16 bits. */
1482 HOWTO (R_PPC64_TPREL16_HIGHER,
1483 32, /* rightshift */
1484 1, /* size (0 = byte, 1 = short, 2 = long) */
1485 16, /* bitsize */
1486 FALSE, /* pc_relative */
1487 0, /* bitpos */
1488 complain_overflow_dont, /* complain_on_overflow */
1489 ppc64_elf_unhandled_reloc, /* special_function */
1490 "R_PPC64_TPREL16_HIGHER", /* name */
1491 FALSE, /* partial_inplace */
1492 0, /* src_mask */
1493 0xffff, /* dst_mask */
1494 FALSE), /* pcrel_offset */
1495
1496 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1497 HOWTO (R_PPC64_TPREL16_HIGHERA,
1498 32, /* rightshift */
1499 1, /* size (0 = byte, 1 = short, 2 = long) */
1500 16, /* bitsize */
1501 FALSE, /* pc_relative */
1502 0, /* bitpos */
1503 complain_overflow_dont, /* complain_on_overflow */
1504 ppc64_elf_unhandled_reloc, /* special_function */
1505 "R_PPC64_TPREL16_HIGHERA", /* name */
1506 FALSE, /* partial_inplace */
1507 0, /* src_mask */
1508 0xffff, /* dst_mask */
1509 FALSE), /* pcrel_offset */
1510
1511 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1512 HOWTO (R_PPC64_TPREL16_HIGHEST,
1513 48, /* rightshift */
1514 1, /* size (0 = byte, 1 = short, 2 = long) */
1515 16, /* bitsize */
1516 FALSE, /* pc_relative */
1517 0, /* bitpos */
1518 complain_overflow_dont, /* complain_on_overflow */
1519 ppc64_elf_unhandled_reloc, /* special_function */
1520 "R_PPC64_TPREL16_HIGHEST", /* name */
1521 FALSE, /* partial_inplace */
1522 0, /* src_mask */
1523 0xffff, /* dst_mask */
1524 FALSE), /* pcrel_offset */
1525
1526 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1527 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1528 48, /* rightshift */
1529 1, /* size (0 = byte, 1 = short, 2 = long) */
1530 16, /* bitsize */
1531 FALSE, /* pc_relative */
1532 0, /* bitpos */
1533 complain_overflow_dont, /* complain_on_overflow */
1534 ppc64_elf_unhandled_reloc, /* special_function */
1535 "R_PPC64_TPREL16_HIGHESTA", /* name */
1536 FALSE, /* partial_inplace */
1537 0, /* src_mask */
1538 0xffff, /* dst_mask */
1539 FALSE), /* pcrel_offset */
1540
1541 /* Like TPREL16, but for insns with a DS field. */
1542 HOWTO (R_PPC64_TPREL16_DS,
1543 0, /* rightshift */
1544 1, /* size (0 = byte, 1 = short, 2 = long) */
1545 16, /* bitsize */
1546 FALSE, /* pc_relative */
1547 0, /* bitpos */
1548 complain_overflow_signed, /* complain_on_overflow */
1549 ppc64_elf_unhandled_reloc, /* special_function */
1550 "R_PPC64_TPREL16_DS", /* name */
1551 FALSE, /* partial_inplace */
1552 0, /* src_mask */
1553 0xfffc, /* dst_mask */
1554 FALSE), /* pcrel_offset */
1555
1556 /* Like TPREL16_DS, but no overflow. */
1557 HOWTO (R_PPC64_TPREL16_LO_DS,
1558 0, /* rightshift */
1559 1, /* size (0 = byte, 1 = short, 2 = long) */
1560 16, /* bitsize */
1561 FALSE, /* pc_relative */
1562 0, /* bitpos */
1563 complain_overflow_dont, /* complain_on_overflow */
1564 ppc64_elf_unhandled_reloc, /* special_function */
1565 "R_PPC64_TPREL16_LO_DS", /* name */
1566 FALSE, /* partial_inplace */
1567 0, /* src_mask */
1568 0xfffc, /* dst_mask */
1569 FALSE), /* pcrel_offset */
1570
1571 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1572 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1573 to the first entry relative to the TOC base (r2). */
1574 HOWTO (R_PPC64_GOT_TLSGD16,
1575 0, /* rightshift */
1576 1, /* size (0 = byte, 1 = short, 2 = long) */
1577 16, /* bitsize */
1578 FALSE, /* pc_relative */
1579 0, /* bitpos */
1580 complain_overflow_signed, /* complain_on_overflow */
1581 ppc64_elf_unhandled_reloc, /* special_function */
1582 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1583 FALSE, /* partial_inplace */
5bd4f169
AM		 1584 0, /* src_mask */
1585 0xffff, /* dst_mask */
b34976b6 1586 FALSE), /* pcrel_offset */
5bd4f169 1587
411e1bfb
AM		 1588 /* Like GOT_TLSGD16, but no overflow. */
1589 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM		 1590 0, /* rightshift */
1591 1, /* size (0 = byte, 1 = short, 2 = long) */
1592 16, /* bitsize */
b34976b6 1593 FALSE, /* pc_relative */
5bd4f169
AM		 1594 0, /* bitpos */
1595 complain_overflow_dont, /* complain_on_overflow */
805fc799 1596 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1597 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1598 FALSE, /* partial_inplace */
5bd4f169
AM		 1599 0, /* src_mask */
1600 0xffff, /* dst_mask */
b34976b6 1601 FALSE), /* pcrel_offset */
5bd4f169 1602
411e1bfb
AM		 1603 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1604 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM		 1605 16, /* rightshift */
1606 1, /* size (0 = byte, 1 = short, 2 = long) */
1607 16, /* bitsize */
b34976b6 1608 FALSE, /* pc_relative */
5bd4f169
AM		 1609 0, /* bitpos */
1610 complain_overflow_dont, /* complain_on_overflow */
805fc799 1611 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1612 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1613 FALSE, /* partial_inplace */
5bd4f169
AM		 1614 0, /* src_mask */
1615 0xffff, /* dst_mask */
b34976b6 1616 FALSE), /* pcrel_offset */
5bd4f169 1617
411e1bfb
AM		 1618 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1619 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM		 1620 16, /* rightshift */
1621 1, /* size (0 = byte, 1 = short, 2 = long) */
1622 16, /* bitsize */
b34976b6 1623 FALSE, /* pc_relative */
5bd4f169 1624 0, /* bitpos */
411e1bfb 1625 complain_overflow_dont, /* complain_on_overflow */
805fc799 1626 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1627 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1628 FALSE, /* partial_inplace */
5bd4f169
AM		 1629 0, /* src_mask */
1630 0xffff, /* dst_mask */
b34976b6 1631 FALSE), /* pcrel_offset */
5bd4f169 1632
411e1bfb
AM		 1633 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1634 with values (sym+add)@dtpmod and zero, and computes the offset to the
1635 first entry relative to the TOC base (r2). */
1636 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM		 1637 0, /* rightshift */
1638 1, /* size (0 = byte, 1 = short, 2 = long) */
1639 16, /* bitsize */
b34976b6 1640 FALSE, /* pc_relative */
5bd4f169 1641 0, /* bitpos */
411e1bfb
AM		 1642 complain_overflow_signed, /* complain_on_overflow */
1643 ppc64_elf_unhandled_reloc, /* special_function */
1644 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1645 FALSE, /* partial_inplace */
d006db6c 1646 0, /* src_mask */
411e1bfb 1647 0xffff, /* dst_mask */
b34976b6 1648 FALSE), /* pcrel_offset */
5bd4f169 1649
411e1bfb
AM		 1650 /* Like GOT_TLSLD16, but no overflow. */
1651 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM		 1652 0, /* rightshift */
1653 1, /* size (0 = byte, 1 = short, 2 = long) */
1654 16, /* bitsize */
b34976b6 1655 FALSE, /* pc_relative */
5bd4f169 1656 0, /* bitpos */
411e1bfb
AM		 1657 complain_overflow_dont, /* complain_on_overflow */
1658 ppc64_elf_unhandled_reloc, /* special_function */
1659 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1660 FALSE, /* partial_inplace */
d006db6c 1661 0, /* src_mask */
411e1bfb 1662 0xffff, /* dst_mask */
b34976b6 1663 FALSE), /* pcrel_offset */
5bd4f169 1664
411e1bfb
AM		 1665 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1666 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1667 16, /* rightshift */
5bd4f169
AM		 1668 1, /* size (0 = byte, 1 = short, 2 = long) */
1669 16, /* bitsize */
b34976b6 1670 FALSE, /* pc_relative */
5bd4f169 1671 0, /* bitpos */
411e1bfb 1672 complain_overflow_dont, /* complain_on_overflow */
805fc799 1673 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1674 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1675 FALSE, /* partial_inplace */
d006db6c 1676 0, /* src_mask */
411e1bfb 1677 0xffff, /* dst_mask */
b34976b6 1678 FALSE), /* pcrel_offset */
5bd4f169 1679
411e1bfb
AM		 1680 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1681 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1682 16, /* rightshift */
5bd4f169
AM		 1683 1, /* size (0 = byte, 1 = short, 2 = long) */
1684 16, /* bitsize */
b34976b6 1685 FALSE, /* pc_relative */
5bd4f169
AM		 1686 0, /* bitpos */
1687 complain_overflow_dont, /* complain_on_overflow */
805fc799 1688 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1689 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1690 FALSE, /* partial_inplace */
d006db6c 1691 0, /* src_mask */
411e1bfb 1692 0xffff, /* dst_mask */
b34976b6 1693 FALSE), /* pcrel_offset */
5bd4f169 1694
411e1bfb
AM		 1695 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1696 the offset to the entry relative to the TOC base (r2). */
1697 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM		 1698 0, /* rightshift */
1699 1, /* size (0 = byte, 1 = short, 2 = long) */
1700 16, /* bitsize */
b34976b6 1701 FALSE, /* pc_relative */
5bd4f169 1702 0, /* bitpos */
411e1bfb 1703 complain_overflow_signed, /* complain_on_overflow */
805fc799 1704 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1705 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1706 FALSE, /* partial_inplace */
d006db6c 1707 0, /* src_mask */
5bd4f169 1708 0xfffc, /* dst_mask */
b34976b6 1709 FALSE), /* pcrel_offset */
5bd4f169 1710
411e1bfb
AM		 1711 /* Like GOT_DTPREL16_DS, but no overflow. */
1712 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1713 0, /* rightshift */
c061c2d8
AM		 1714 1, /* size (0 = byte, 1 = short, 2 = long) */
1715 16, /* bitsize */
b34976b6 1716 FALSE, /* pc_relative */
5bd4f169 1717 0, /* bitpos */
411e1bfb
AM		 1718 complain_overflow_dont, /* complain_on_overflow */
1719 ppc64_elf_unhandled_reloc, /* special_function */
1720 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1721 FALSE, /* partial_inplace */
d006db6c 1722 0, /* src_mask */
c061c2d8 1723 0xfffc, /* dst_mask */
b34976b6 1724 FALSE), /* pcrel_offset */
5bd4f169 1725
411e1bfb
AM		 1726 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1727 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1728 16, /* rightshift */
5bd4f169
AM		 1729 1, /* size (0 = byte, 1 = short, 2 = long) */
1730 16, /* bitsize */
b34976b6 1731 FALSE, /* pc_relative */
5bd4f169
AM		 1732 0, /* bitpos */
1733 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1734 ppc64_elf_unhandled_reloc, /* special_function */
1735 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1736 FALSE, /* partial_inplace */
d006db6c 1737 0, /* src_mask */
411e1bfb 1738 0xffff, /* dst_mask */
b34976b6 1739 FALSE), /* pcrel_offset */
5bd4f169 1740
411e1bfb
AM		 1741 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1742 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1743 16, /* rightshift */
1744 1, /* size (0 = byte, 1 = short, 2 = long) */
1745 16, /* bitsize */
1746 FALSE, /* pc_relative */
1747 0, /* bitpos */
1748 complain_overflow_dont, /* complain_on_overflow */
1749 ppc64_elf_unhandled_reloc, /* special_function */
1750 "R_PPC64_GOT_DTPREL16_HA", /* name */
1751 FALSE, /* partial_inplace */
1752 0, /* src_mask */
1753 0xffff, /* dst_mask */
1754 FALSE), /* pcrel_offset */
1755
1756 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1757 offset to the entry relative to the TOC base (r2). */
1758 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM		 1759 0, /* rightshift */
1760 1, /* size (0 = byte, 1 = short, 2 = long) */
1761 16, /* bitsize */
b34976b6 1762 FALSE, /* pc_relative */
5bd4f169
AM		 1763 0, /* bitpos */
1764 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM		 1765 ppc64_elf_unhandled_reloc, /* special_function */
1766 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1767 FALSE, /* partial_inplace */
d006db6c 1768 0, /* src_mask */
ad8e1ba5 1769 0xfffc, /* dst_mask */
b34976b6 1770 FALSE), /* pcrel_offset */
5bd4f169 1771
411e1bfb
AM		 1772 /* Like GOT_TPREL16_DS, but no overflow. */
1773 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM		 1774 0, /* rightshift */
1775 1, /* size (0 = byte, 1 = short, 2 = long) */
1776 16, /* bitsize */
b34976b6 1777 FALSE, /* pc_relative */
5bd4f169
AM		 1778 0, /* bitpos */
1779 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM		 1780 ppc64_elf_unhandled_reloc, /* special_function */
1781 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1782 FALSE, /* partial_inplace */
d006db6c 1783 0, /* src_mask */
ad8e1ba5 1784 0xfffc, /* dst_mask */
b34976b6 1785 FALSE), /* pcrel_offset */
5bd4f169 1786
411e1bfb
AM		 1787 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1788 HOWTO (R_PPC64_GOT_TPREL16_HI,
1789 16, /* rightshift */
5bd4f169
AM		 1790 1, /* size (0 = byte, 1 = short, 2 = long) */
1791 16, /* bitsize */
b34976b6 1792 FALSE, /* pc_relative */
5bd4f169 1793 0, /* bitpos */
411e1bfb 1794 complain_overflow_dont, /* complain_on_overflow */
805fc799 1795 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1796 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1797 FALSE, /* partial_inplace */
d006db6c 1798 0, /* src_mask */
411e1bfb 1799 0xffff, /* dst_mask */
b34976b6 1800 FALSE), /* pcrel_offset */
5bd4f169 1801
411e1bfb
AM		 1802 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1803 HOWTO (R_PPC64_GOT_TPREL16_HA,
1804 16, /* rightshift */
5bd4f169
AM		 1805 1, /* size (0 = byte, 1 = short, 2 = long) */
1806 16, /* bitsize */
b34976b6 1807 FALSE, /* pc_relative */
5bd4f169
AM		 1808 0, /* bitpos */
1809 complain_overflow_dont, /* complain_on_overflow */
805fc799 1810 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1811 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1812 FALSE, /* partial_inplace */
d006db6c 1813 0, /* src_mask */
411e1bfb 1814 0xffff, /* dst_mask */
b34976b6 1815 FALSE), /* pcrel_offset */
5bd4f169
AM		 1816
1817 /* GNU extension to record C++ vtable hierarchy. */
1818 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1819 0, /* rightshift */
1820 0, /* size (0 = byte, 1 = short, 2 = long) */
1821 0, /* bitsize */
b34976b6 1822 FALSE, /* pc_relative */
5bd4f169
AM		 1823 0, /* bitpos */
1824 complain_overflow_dont, /* complain_on_overflow */
1825 NULL, /* special_function */
1826 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1827 FALSE, /* partial_inplace */
5bd4f169
AM		 1828 0, /* src_mask */
1829 0, /* dst_mask */
b34976b6 1830 FALSE), /* pcrel_offset */
5bd4f169
AM		 1831
1832 /* GNU extension to record C++ vtable member usage. */
1833 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1834 0, /* rightshift */
1835 0, /* size (0 = byte, 1 = short, 2 = long) */
1836 0, /* bitsize */
b34976b6 1837 FALSE, /* pc_relative */
5bd4f169
AM		 1838 0, /* bitpos */
1839 complain_overflow_dont, /* complain_on_overflow */
1840 NULL, /* special_function */
1841 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1842 FALSE, /* partial_inplace */
5bd4f169
AM		 1843 0, /* src_mask */
1844 0, /* dst_mask */
b34976b6 1845 FALSE), /* pcrel_offset */
5bd4f169
AM		 1846};
1847
1848\f
1849/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1850 be done. */
1851
1852static void
4ce794b7 1853ppc_howto_init (void)
5bd4f169
AM		 1854{
1855 unsigned int i, type;
1856
1857 for (i = 0;
1858 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1859 i++)
1860 {
1861 type = ppc64_elf_howto_raw[i].type;
1862 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1863 / sizeof (ppc64_elf_howto_table[0])));
1864 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1865 }
1866}
1867
1868static reloc_howto_type *
4ce794b7
AM		 1869ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1870 bfd_reloc_code_real_type code)
5bd4f169 1871{
411e1bfb 1872 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM		 1873
1874 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1875 /* Initialize howto table if needed. */
1876 ppc_howto_init ();
1877
4ce794b7 1878 switch (code)
5bd4f169
AM		 1879 {
1880 default:
4ce794b7 1881 return NULL;
5bd4f169 1882
411e1bfb
AM		 1883 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1884 break;
1885 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1886 break;
1887 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1888 break;
1889 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1890 break;
1891 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1892 break;
1893 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1894 break;
1895 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1896 break;
411e1bfb 1897 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1898 break;
411e1bfb 1899 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1900 break;
411e1bfb 1901 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1902 break;
411e1bfb 1903 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1904 break;
411e1bfb 1905 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1906 break;
411e1bfb 1907 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1908 break;
411e1bfb 1909 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1910 break;
411e1bfb 1911 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1912 break;
411e1bfb 1913 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1914 break;
411e1bfb 1915 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1916 break;
411e1bfb 1917 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1918 break;
411e1bfb 1919 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1920 break;
411e1bfb 1921 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1922 break;
411e1bfb 1923 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1924 break;
411e1bfb 1925 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1926 break;
411e1bfb 1927 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1928 break;
411e1bfb 1929 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1930 break;
411e1bfb 1931 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1932 break;
411e1bfb 1933 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1934 break;
411e1bfb 1935 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1936 break;
411e1bfb 1937 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1938 break;
411e1bfb 1939 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1940 break;
411e1bfb 1941 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1942 break;
411e1bfb 1943 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1944 break;
411e1bfb 1945 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1946 break;
411e1bfb 1947 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1948 break;
411e1bfb 1949 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1950 break;
411e1bfb 1951 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1952 break;
411e1bfb 1953 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1954 break;
411e1bfb 1955 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1956 break;
411e1bfb 1957 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1958 break;
411e1bfb 1959 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1960 break;
411e1bfb 1961 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1962 break;
411e1bfb 1963 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1964 break;
411e1bfb 1965 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1966 break;
411e1bfb 1967 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1968 break;
411e1bfb 1969 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1970 break;
411e1bfb 1971 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1972 break;
411e1bfb 1973 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1974 break;
411e1bfb 1975 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1976 break;
411e1bfb 1977 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1978 break;
411e1bfb 1979 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1980 break;
411e1bfb 1981 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 1982 break;
411e1bfb 1983 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 1984 break;
411e1bfb 1985 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 1986 break;
411e1bfb 1987 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 1988 break;
411e1bfb 1989 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 1990 break;
411e1bfb 1991 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 1992 break;
411e1bfb 1993 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 1994 break;
411e1bfb 1995 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 1996 break;
411e1bfb 1997 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 1998 break;
411e1bfb 1999 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2000 break;
411e1bfb 2001 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2002 break;
411e1bfb 2003 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2004 break;
411e1bfb 2005 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2006 break;
411e1bfb 2007 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2008 break;
411e1bfb 2009 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2010 break;
411e1bfb 2011 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2012 break;
411e1bfb 2013 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2014 break;
411e1bfb
AM		 2015 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2016 break;
2017 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2018 break;
2019 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2020 break;
2021 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2022 break;
2023 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2024 break;
2025 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2026 break;
2027 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2028 break;
2029 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2030 break;
2031 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2032 break;
2033 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2034 break;
2035 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2036 break;
2037 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2038 break;
2039 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2040 break;
2041 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2042 break;
2043 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2044 break;
2045 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2046 break;
2047 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2048 break;
2049 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2050 break;
2051 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2052 break;
2053 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2054 break;
2055 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2056 break;
2057 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2058 break;
2059 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2060 break;
2061 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2062 break;
2063 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2064 break;
2065 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2066 break;
2067 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2068 break;
2069 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2070 break;
2071 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2072 break;
2073 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2074 break;
2075 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2076 break;
2077 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2078 break;
2079 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2080 break;
2081 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2082 break;
2083 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM		 2084 break;
2085 }
2086
4ce794b7 2087 return ppc64_elf_howto_table[r];
5bd4f169
AM		 2088};
2089
2090/* Set the howto pointer for a PowerPC ELF reloc. */
2091
2092static void
4ce794b7
AM		 2093ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2094 Elf_Internal_Rela *dst)
5bd4f169 2095{
65f38f15
AM		 2096 unsigned int type;
2097
ef60b7ff 2098 /* Initialize howto table if needed. */
5bd4f169 2099 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 2100 ppc_howto_init ();
2101
65f38f15
AM		 2102 type = ELF64_R_TYPE (dst->r_info);
2103 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2104 / sizeof (ppc64_elf_howto_table[0])));
2105 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM		 2106}
2107
04c9666a 2108/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM		 2109
2110static bfd_reloc_status_type
4ce794b7
AM		 2111ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2112 void *data, asection *input_section,
2113 bfd *output_bfd, char **error_message)
5bd4f169 2114{
805fc799
AM		 2115 /* If this is a relocatable link (output_bfd test tells us), just
2116 call the generic function. Any adjustment will be done at final
2117 link time. */
2118 if (output_bfd != NULL)
cedb70c5 2119 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2120 input_section, output_bfd, error_message);
2121
2122 /* Adjust the addend for sign extension of the low 16 bits.
2123 We won't actually be using the low 16 bits, so trashing them
2124 doesn't matter. */
2125 reloc_entry->addend += 0x8000;
2126 return bfd_reloc_continue;
2127}
5bd4f169 2128
805fc799 2129static bfd_reloc_status_type
4ce794b7
AM		 2130ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2131 void *data, asection *input_section,
2132 bfd *output_bfd, char **error_message)
805fc799
AM		 2133{
2134 long insn;
04c9666a 2135 enum elf_ppc64_reloc_type r_type;
805fc799
AM		 2136 bfd_size_type octets;
2137 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2138 bfd_boolean is_power4 = FALSE;
805fc799
AM		 2139
2140 /* If this is a relocatable link (output_bfd test tells us), just
2141 call the generic function. Any adjustment will be done at final
2142 link time. */
5bd4f169 2143 if (output_bfd != NULL)
cedb70c5 2144 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2145 input_section, output_bfd, error_message);
2146
2147 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2148 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2149 insn &= ~(0x01 << 21);
4ce794b7 2150 r_type = reloc_entry->howto->type;
805fc799
AM		 2151 if (r_type == R_PPC64_ADDR14_BRTAKEN
2152 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2153 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM		 2154
2155 if (is_power4)
5bd4f169 2156 {
805fc799
AM		 2157 /* Set 'a' bit. This is 0b00010 in BO field for branch
2158 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2159 for branch on CTR insns (BO == 1a00t or 1a01t). */
2160 if ((insn & (0x14 << 21)) == (0x04 << 21))
2161 insn |= 0x02 << 21;
2162 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2163 insn |= 0x08 << 21;
2164 else
2165 return bfd_reloc_continue;
5bd4f169 2166 }
805fc799
AM		 2167 else
2168 {
2169 bfd_vma target = 0;
2170 bfd_vma from;
5bd4f169 2171
805fc799
AM		 2172 if (!bfd_is_com_section (symbol->section))
2173 target = symbol->value;
2174 target += symbol->section->output_section->vma;
2175 target += symbol->section->output_offset;
2176 target += reloc_entry->addend;
5bd4f169 2177
805fc799
AM		 2178 from = (reloc_entry->address
2179 + input_section->output_offset
2180 + input_section->output_section->vma);
5bd4f169 2181
805fc799
AM		 2182 /* Invert 'y' bit if not the default. */
2183 if ((bfd_signed_vma) (target - from) < 0)
2184 insn ^= 0x01 << 21;
2185 }
4ce794b7 2186 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
805fc799
AM		 2187 return bfd_reloc_continue;
2188}
5bd4f169 2189
805fc799 2190static bfd_reloc_status_type
4ce794b7
AM		 2191ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2192 void *data, asection *input_section,
2193 bfd *output_bfd, char **error_message)
805fc799
AM		 2194{
2195 /* If this is a relocatable link (output_bfd test tells us), just
2196 call the generic function. Any adjustment will be done at final
2197 link time. */
2198 if (output_bfd != NULL)
cedb70c5 2199 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2200 input_section, output_bfd, error_message);
5bd4f169 2201
805fc799
AM		 2202 /* Subtract the symbol section base address. */
2203 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM		 2204 return bfd_reloc_continue;
2205}
2206
805fc799 2207static bfd_reloc_status_type
4ce794b7
AM		 2208ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2209 void *data, asection *input_section,
2210 bfd *output_bfd, char **error_message)
805fc799
AM		 2211{
2212 /* If this is a relocatable link (output_bfd test tells us), just
2213 call the generic function. Any adjustment will be done at final
2214 link time. */
2215 if (output_bfd != NULL)
cedb70c5 2216 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2217 input_section, output_bfd, error_message);
2218
2219 /* Subtract the symbol section base address. */
2220 reloc_entry->addend -= symbol->section->output_section->vma;
2221
2222 /* Adjust the addend for sign extension of the low 16 bits. */
2223 reloc_entry->addend += 0x8000;
2224 return bfd_reloc_continue;
2225}
2226
2227static bfd_reloc_status_type
4ce794b7
AM		 2228ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2229 void *data, asection *input_section,
2230 bfd *output_bfd, char **error_message)
805fc799
AM		 2231{
2232 bfd_vma TOCstart;
2233
2234 /* If this is a relocatable link (output_bfd test tells us), just
2235 call the generic function. Any adjustment will be done at final
2236 link time. */
2237 if (output_bfd != NULL)
cedb70c5 2238 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2239 input_section, output_bfd, error_message);
2240
2241 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2242 if (TOCstart == 0)
2243 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2244
2245 /* Subtract the TOC base address. */
2246 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2247 return bfd_reloc_continue;
2248}
2249
2250static bfd_reloc_status_type
4ce794b7
AM		 2251ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2252 void *data, asection *input_section,
2253 bfd *output_bfd, char **error_message)
805fc799
AM		 2254{
2255 bfd_vma TOCstart;
2256
2257 /* If this is a relocatable link (output_bfd test tells us), just
2258 call the generic function. Any adjustment will be done at final
2259 link time. */
2260 if (output_bfd != NULL)
cedb70c5 2261 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2262 input_section, output_bfd, error_message);
2263
2264 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2265 if (TOCstart == 0)
2266 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2267
2268 /* Subtract the TOC base address. */
2269 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2270
2271 /* Adjust the addend for sign extension of the low 16 bits. */
2272 reloc_entry->addend += 0x8000;
2273 return bfd_reloc_continue;
2274}
2275
2276static bfd_reloc_status_type
4ce794b7
AM		 2277ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2278 void *data, asection *input_section,
2279 bfd *output_bfd, char **error_message)
805fc799
AM		 2280{
2281 bfd_vma TOCstart;
2282 bfd_size_type octets;
2283
2284 /* If this is a relocatable link (output_bfd test tells us), just
2285 call the generic function. Any adjustment will be done at final
2286 link time. */
2287 if (output_bfd != NULL)
cedb70c5 2288 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2289 input_section, output_bfd, error_message);
2290
2291 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2292 if (TOCstart == 0)
2293 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2294
2295 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2296 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2297 return bfd_reloc_ok;
2298}
2299
2300static bfd_reloc_status_type
4ce794b7
AM		 2301ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2302 void *data, asection *input_section,
2303 bfd *output_bfd, char **error_message)
805fc799
AM		 2304{
2305 /* If this is a relocatable link (output_bfd test tells us), just
2306 call the generic function. Any adjustment will be done at final
2307 link time. */
2308 if (output_bfd != NULL)
cedb70c5 2309 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM		 2310 input_section, output_bfd, error_message);
2311
2312 if (error_message != NULL)
2313 {
2314 static char buf[60];
2315 sprintf (buf, "generic linker can't handle %s",
2316 reloc_entry->howto->name);
2317 *error_message = buf;
2318 }
2319 return bfd_reloc_dangerous;
2320}
2321
e717da7e
AM		 2322struct ppc64_elf_obj_tdata
2323{
2324 struct elf_obj_tdata elf;
2325
2326 /* Shortcuts to dynamic linker sections. */
2327 asection *got;
2328 asection *relgot;
2329
2330 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2331 sections means we potentially need one of these for each input bfd. */
2332 union {
2333 bfd_signed_vma refcount;
2334 bfd_vma offset;
2335 } tlsld_got;
2336};
2337
2338#define ppc64_elf_tdata(bfd) \
2339 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2340
2341#define ppc64_tlsld_got(bfd) \
2342 (&ppc64_elf_tdata (bfd)->tlsld_got)
2343
2344/* Override the generic function because we store some extras. */
2345
2346static bfd_boolean
2347ppc64_elf_mkobject (bfd *abfd)
2348{
2349 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2350 abfd->tdata.any = bfd_zalloc (abfd, amt);
2351 if (abfd->tdata.any == NULL)
2352 return FALSE;
2353 return TRUE;
2354}
2355
feee612b
AM		 2356/* Fix bad default arch selected for a 64 bit input bfd when the
2357 default is 32 bit. */
2358
b34976b6 2359static bfd_boolean
4ce794b7 2360ppc64_elf_object_p (bfd *abfd)
feee612b
AM		 2361{
2362 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2363 {
2364 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2365
2366 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2367 {
2368 /* Relies on arch after 32 bit default being 64 bit default. */
2369 abfd->arch_info = abfd->arch_info->next;
2370 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2371 }
2372 }
b34976b6 2373 return TRUE;
feee612b
AM		 2374}
2375
5bd4f169
AM		 2376/* Merge backend specific data from an object file to the output
2377 object file when linking. */
2f6d9989 2378
b34976b6 2379static bfd_boolean
4ce794b7 2380ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2381{
5bd4f169
AM		 2382 /* Check if we have the same endianess. */
2383 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2384 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM		 2385 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2386 {
2387 const char *msg;
2388
2389 if (bfd_big_endian (ibfd))
4ce794b7
AM		 2390 msg = _("%s: compiled for a big endian system "
2391 "and target is little endian");
5bd4f169 2392 else
4ce794b7
AM		 2393 msg = _("%s: compiled for a little endian system "
2394 "and target is big endian");
5bd4f169 2395
8f615d07 2396 (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
5bd4f169
AM		 2397
2398 bfd_set_error (bfd_error_wrong_format);
b34976b6 2399 return FALSE;
5bd4f169
AM		 2400 }
2401
b34976b6 2402 return TRUE;
5bd4f169 2403}
f0abc2a1 2404
5d35169e
AM		 2405/* Add extra PPC sections. */
2406
2407static struct bfd_elf_special_section const ppc64_elf_special_sections[]=
2408{
2409 { ".sdata", 0, NULL, 0,
2410 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2411 { ".sbss", 0, NULL, 0,
2412 SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2413 { ".plt", 0, NULL, 0,
2414 SHT_NOBITS, 0 },
2415 { ".toc", 0, NULL, 0,
2416 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2417 { ".toc1", 0, NULL, 0,
2418 SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2419 { ".tocbss", 0, NULL, 0,
2420 SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2421 { NULL, 0, NULL, 0,
2422 0, 0 }
2423};
2424
f0abc2a1
AM		 2425struct _ppc64_elf_section_data
2426{
2427 struct bfd_elf_section_data elf;
411e1bfb
AM		 2428
2429 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM		 2430 union
2431 {
411e1bfb 2432 /* Points to the function code section for local opd entries. */
f0abc2a1 2433 asection **func_sec;
411e1bfb 2434 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM		 2435 long *adjust;
2436 } opd;
411e1bfb
AM		 2437
2438 /* An array for toc sections, indexed by offset/8.
2439 Specifies the relocation symbol index used at a given toc offset. */
2440 unsigned *t_symndx;
f0abc2a1
AM		 2441};
2442
2443#define ppc64_elf_section_data(sec) \
411e1bfb 2444 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM		 2445
2446static bfd_boolean
4ce794b7 2447ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1
AM		 2448{
2449 struct _ppc64_elf_section_data *sdata;
2450 bfd_size_type amt = sizeof (*sdata);
2451
4ce794b7 2452 sdata = bfd_zalloc (abfd, amt);
f0abc2a1
AM		 2453 if (sdata == NULL)
2454 return FALSE;
4ce794b7 2455 sec->used_by_bfd = sdata;
f0abc2a1
AM		 2456
2457 return _bfd_elf_new_section_hook (abfd, sec);
2458}
5bd4f169 2459\f
65f38f15
AM		 2460/* The following functions are specific to the ELF linker, while
2461 functions above are used generally. Those named ppc64_elf_* are
2462 called by the main ELF linker code. They appear in this file more
2463 or less in the order in which they are called. eg.
2464 ppc64_elf_check_relocs is called early in the link process,
2465 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM		 2466 called.
2467
2468 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2469 functions have both a function code symbol and a function descriptor
2470 symbol. A call to foo in a relocatable object file looks like:
2471
2472 . .text
2473 . x:
2474 . bl .foo
2475 . nop
2476
2477 The function definition in another object file might be:
2478
2479 . .section .opd
2480 . foo: .quad .foo
2481 . .quad .TOC.@tocbase
2482 . .quad 0
2483 .
2484 . .text
2485 . .foo: blr
2486
2487 When the linker resolves the call during a static link, the branch
2488 unsurprisingly just goes to .foo and the .opd information is unused.
2489 If the function definition is in a shared library, things are a little
2490 different: The call goes via a plt call stub, the opd information gets
2491 copied to the plt, and the linker patches the nop.
2492
2493 . x:
2494 . bl .foo_stub
2495 . ld 2,40(1)
2496 .
2497 .
2498 . .foo_stub:
2499 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2500 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM		 2501 . std 2,40(1) # this is the general idea
2502 . ld 11,0(12)
2503 . ld 2,8(12)
2504 . mtctr 11
2505 . ld 11,16(12)
2506 . bctr
2507 .
2508 . .section .plt
2509 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2510
2511 The "reloc ()" notation is supposed to indicate that the linker emits
2512 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2513 copying.
2514
2515 What are the difficulties here? Well, firstly, the relocations
2516 examined by the linker in check_relocs are against the function code
2517 sym .foo, while the dynamic relocation in the plt is emitted against
2518 the function descriptor symbol, foo. Somewhere along the line, we need
2519 to carefully copy dynamic link information from one symbol to the other.
2520 Secondly, the generic part of the elf linker will make .foo a dynamic
2521 symbol as is normal for most other backends. We need foo dynamic
2522 instead, at least for an application final link. However, when
2523 creating a shared library containing foo, we need to have both symbols
2524 dynamic so that references to .foo are satisfied during the early
2525 stages of linking. Otherwise the linker might decide to pull in a
41bd81ab 2526 definition from some other object, eg. a static library. */
65f38f15
AM		 2527
2528/* The linker needs to keep track of the number of relocs that it
2529 decides to copy as dynamic relocs in check_relocs for each symbol.
2530 This is so that it can later discard them if they are found to be
2531 unnecessary. We store the information in a field extending the
2532 regular ELF linker hash table. */
2533
2534struct ppc_dyn_relocs
2535{
2536 struct ppc_dyn_relocs *next;
2537
2538 /* The input section of the reloc. */
2539 asection *sec;
2540
2541 /* Total number of relocs copied for the input section. */
2542 bfd_size_type count;
2543
2544 /* Number of pc-relative relocs copied for the input section. */
2545 bfd_size_type pc_count;
2546};
2547
411e1bfb
AM		 2548/* Track GOT entries needed for a given symbol. We might need more
2549 than one got entry per symbol. */
2550struct got_entry
2551{
2552 struct got_entry *next;
2553
e7b938ca 2554 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM		 2555 bfd_vma addend;
2556
e717da7e
AM		 2557 /* Unlike other ELF targets, we use separate GOT entries for the same
2558 symbol referenced from different input files. This is to support
2559 automatic multiple TOC/GOT sections, where the TOC base can vary
2560 from one input file to another.
2561
2562 Point to the BFD owning this GOT entry. */
2563 bfd *owner;
2564
2565 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2566 TLS_TPREL or TLS_DTPREL for tls entries. */
2567 char tls_type;
2568
e7b938ca 2569 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM		 2570 union
2571 {
2572 bfd_signed_vma refcount;
2573 bfd_vma offset;
2574 } got;
411e1bfb
AM		 2575};
2576
2577/* The same for PLT. */
2578struct plt_entry
2579{
2580 struct plt_entry *next;
2581
2582 bfd_vma addend;
2583
2584 union
2585 {
2586 bfd_signed_vma refcount;
2587 bfd_vma offset;
2588 } plt;
2589};
2590
65f38f15 2591/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM		 2592 selects those that must be copied when linking a shared library,
2593 even when the symbol is local. */
65f38f15 2594
411e1bfb 2595#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM		 2596 ((RTYPE) != R_PPC64_REL32 \
2597 && (RTYPE) != R_PPC64_REL64 \
04c9666a 2598 && (RTYPE) != R_PPC64_REL30)
65f38f15 2599
f4656909
AM		 2600/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2601 copying dynamic variables from a shared lib into an app's dynbss
2602 section, and instead use a dynamic relocation to point into the
5d35169e
AM		 2603 shared lib. With code that gcc generates, it's vital that this be
2604 enabled; In the PowerPC64 ABI, the address of a function is actually
2605 the address of a function descriptor, which resides in the .opd
2606 section. gcc uses the descriptor directly rather than going via the
2607 GOT as some other ABI's do, which means that initialized function
2608 pointers must reference the descriptor. Thus, a function pointer
2609 initialized to the address of a function in a shared library will
2610 either require a copy reloc, or a dynamic reloc. Using a copy reloc
2611 redefines the function desctriptor symbol to point to the copy. This
2612 presents a problem as a plt entry for that function is also
2613 initialized from the function descriptor symbol and the copy reloc
2614 may not be initialized first. */
a23b6845 2615#define ELIMINATE_COPY_RELOCS 1
f4656909 2616
721956f4
AM		 2617/* Section name for stubs is the associated section name plus this
2618 string. */
2619#define STUB_SUFFIX ".stub"
2620
2621/* Linker stubs.
2622 ppc_stub_long_branch:
2623 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2624 destination, but a 24 bit branch in a stub section will reach.
2625 . b dest
2626
2627 ppc_stub_plt_branch:
2628 Similar to the above, but a 24 bit branch in the stub section won't
2629 reach its destination.
87e226ce
AM		 2630 . addis %r12,%r2,xxx@toc@ha
2631 . ld %r11,xxx@toc@l(%r12)
721956f4
AM		 2632 . mtctr %r11
2633 . bctr
2634
2635 ppc_stub_plt_call:
2636 Used to call a function in a shared library.
87e226ce 2637 . addis %r12,%r2,xxx@toc@ha
721956f4 2638 . std %r2,40(%r1)
87e226ce
AM		 2639 . ld %r11,xxx+0@toc@l(%r12)
2640 . ld %r2,xxx+8@toc@l(%r12)
721956f4 2641 . mtctr %r11
87e226ce 2642 . ld %r11,xxx+16@toc@l(%r12)
721956f4 2643 . bctr
ad8e1ba5
AM		 2644
2645 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
2646 code to adjust the value and save r2 to support multiple toc sections.
2647 A ppc_stub_long_branch with an r2 offset looks like:
2648 . std %r2,40(%r1)
2649 . addis %r2,%r2,off@ha
2650 . addi %r2,%r2,off@l
2651 . b dest
2652
2653 A ppc_stub_plt_branch with an r2 offset looks like:
2654 . std %r2,40(%r1)
2655 . addis %r12,%r2,xxx@toc@ha
2656 . ld %r11,xxx@toc@l(%r12)
2657 . addis %r2,%r2,off@ha
2658 . addi %r2,%r2,off@l
2659 . mtctr %r11
2660 . bctr
721956f4
AM		 2661*/
2662
2663enum ppc_stub_type {
2664 ppc_stub_none,
2665 ppc_stub_long_branch,
ad8e1ba5 2666 ppc_stub_long_branch_r2off,
721956f4 2667 ppc_stub_plt_branch,
ad8e1ba5 2668 ppc_stub_plt_branch_r2off,
721956f4
AM		 2669 ppc_stub_plt_call
2670};
2671
2672struct ppc_stub_hash_entry {
2673
2674 /* Base hash table entry structure. */
2675 struct bfd_hash_entry root;
2676
ad8e1ba5
AM		 2677 enum ppc_stub_type stub_type;
2678
721956f4
AM		 2679 /* The stub section. */
2680 asection *stub_sec;
2681
2682 /* Offset within stub_sec of the beginning of this stub. */
2683 bfd_vma stub_offset;
2684
2685 /* Given the symbol's value and its section we can determine its final
2686 value when building the stubs (so the stub knows where to jump. */
2687 bfd_vma target_value;
2688 asection *target_section;
2689
721956f4
AM		 2690 /* The symbol table entry, if any, that this was derived from. */
2691 struct ppc_link_hash_entry *h;
2692
411e1bfb
AM		 2693 /* And the reloc addend that this was derived from. */
2694 bfd_vma addend;
2695
721956f4
AM		 2696 /* Where this stub is being called from, or, in the case of combined
2697 stub sections, the first input section in the group. */
2698 asection *id_sec;
2699};
2700
2701struct ppc_branch_hash_entry {
2702
2703 /* Base hash table entry structure. */
2704 struct bfd_hash_entry root;
2705
2706 /* Offset within .branch_lt. */
2707 unsigned int offset;
2708
2709 /* Generation marker. */
2710 unsigned int iter;
2711};
65f38f15
AM		 2712
2713struct ppc_link_hash_entry
2714{
2715 struct elf_link_hash_entry elf;
2716
721956f4
AM		 2717 /* A pointer to the most recently used stub hash entry against this
2718 symbol. */
2719 struct ppc_stub_hash_entry *stub_cache;
2720
65f38f15
AM		 2721 /* Track dynamic relocs copied for this symbol. */
2722 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 2723
721956f4
AM		 2724 /* Link between function code and descriptor symbols. */
2725 struct elf_link_hash_entry *oh;
2726
e86ce104
AM		 2727 /* Flag function code and descriptor symbols. */
2728 unsigned int is_func:1;
2729 unsigned int is_func_descriptor:1;
1e2f5b6e 2730 unsigned int is_entry:1;
411e1bfb
AM		 2731
2732 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM		 2733 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2734 corresponding relocs are encountered during check_relocs.
2735 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2736 indicate the corresponding GOT entry type is not needed.
2737 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2738 a TPREL one. We use a separate flag rather than setting TPREL
2739 just for convenience in distinguishing the two cases. */
2740#define TLS_GD 1 /* GD reloc. */
2741#define TLS_LD 2 /* LD reloc. */
2742#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2743#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2744#define TLS_TLS 16 /* Any TLS reloc. */
2745#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2746#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2747 char tls_mask;
65f38f15
AM		 2748};
2749
2750/* ppc64 ELF linker hash table. */
2751
2752struct ppc_link_hash_table
2753{
2754 struct elf_link_hash_table elf;
2755
721956f4
AM		 2756 /* The stub hash table. */
2757 struct bfd_hash_table stub_hash_table;
2758
2759 /* Another hash table for plt_branch stubs. */
2760 struct bfd_hash_table branch_hash_table;
2761
2762 /* Linker stub bfd. */
2763 bfd *stub_bfd;
2764
2765 /* Linker call-backs. */
4ce794b7
AM		 2766 asection * (*add_stub_section) (const char *, asection *);
2767 void (*layout_sections_again) (void);
721956f4
AM		 2768
2769 /* Array to keep track of which stub sections have been created, and
2770 information on stub grouping. */
2771 struct map_stub {
2772 /* This is the section to which stubs in the group will be attached. */
2773 asection *link_sec;
2774 /* The stub section. */
2775 asection *stub_sec;
ad8e1ba5
AM		 2776 /* Along with elf_gp, specifies the TOC pointer used in this group. */
2777 bfd_vma toc_off;
721956f4
AM		 2778 } *stub_group;
2779
ad8e1ba5
AM		 2780 /* Support for multiple toc sections. */
2781 unsigned int no_multi_toc;
2782 unsigned int multi_toc_needed;
2783
2784 /* Temp used when calculating TOC pointers. */
2785 bfd_vma toc_curr;
2786
8f3bab57
AM		 2787 /* Highest input section id. */
2788 int top_id;
2789
734b6cf9
AM		 2790 /* Highest output section index. */
2791 int top_index;
2792
2793 /* List of input sections for each output section. */
2794 asection **input_list;
721956f4 2795
65f38f15 2796 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 2797 asection *got;
4ce794b7
AM		 2798 asection *plt;
2799 asection *relplt;
2800 asection *dynbss;
2801 asection *relbss;
2802 asection *glink;
82bd7b59 2803 asection *sfpr;
4ce794b7
AM		 2804 asection *brlt;
2805 asection *relbrlt;
ec338859 2806
411e1bfb
AM		 2807 /* Short-cut to first output tls section. */
2808 asection *tls_sec;
2809
2810 /* Shortcut to .__tls_get_addr. */
2811 struct elf_link_hash_entry *tls_get_addr;
2812
9b5ecbd0
AM		 2813 /* Statistics. */
2814 unsigned long stub_count[ppc_stub_plt_call];
2815
ad8e1ba5
AM		 2816 /* Set if we should emit symbols for stubs. */
2817 unsigned int emit_stub_syms;
2818
5d1634d7 2819 /* Set on error. */
721956f4
AM		 2820 unsigned int stub_error;
2821
2822 /* Flag set when small branches are detected. Used to
2823 select suitable defaults for the stub group size. */
2824 unsigned int has_14bit_branch;
2825
805fc799
AM		 2826 /* Set if we detect a reference undefined weak symbol. */
2827 unsigned int have_undefweak;
2828
721956f4
AM		 2829 /* Incremented every time we size stubs. */
2830 unsigned int stub_iteration;
5d1634d7 2831
ec338859
AM		 2832 /* Small local sym to section mapping cache. */
2833 struct sym_sec_cache sym_sec;
65f38f15
AM		 2834};
2835
2836/* Get the ppc64 ELF linker hash table from a link_info structure. */
2837
2838#define ppc_hash_table(p) \
2839 ((struct ppc_link_hash_table *) ((p)->hash))
2840
721956f4
AM		 2841#define ppc_stub_hash_lookup(table, string, create, copy) \
2842 ((struct ppc_stub_hash_entry *) \
2843 bfd_hash_lookup ((table), (string), (create), (copy)))
2844
2845#define ppc_branch_hash_lookup(table, string, create, copy) \
2846 ((struct ppc_branch_hash_entry *) \
2847 bfd_hash_lookup ((table), (string), (create), (copy)))
2848
2849/* Create an entry in the stub hash table. */
2850
2851static struct bfd_hash_entry *
4ce794b7
AM		 2852stub_hash_newfunc (struct bfd_hash_entry *entry,
2853 struct bfd_hash_table *table,
2854 const char *string)
721956f4
AM		 2855{
2856 /* Allocate the structure if it has not already been allocated by a
2857 subclass. */
2858 if (entry == NULL)
2859 {
2860 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
2861 if (entry == NULL)
2862 return entry;
2863 }
2864
2865 /* Call the allocation method of the superclass. */
2866 entry = bfd_hash_newfunc (entry, table, string);
2867 if (entry != NULL)
2868 {
2869 struct ppc_stub_hash_entry *eh;
2870
2871 /* Initialize the local fields. */
2872 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 2873 eh->stub_type = ppc_stub_none;
721956f4
AM		 2874 eh->stub_sec = NULL;
2875 eh->stub_offset = 0;
2876 eh->target_value = 0;
2877 eh->target_section = NULL;
721956f4
AM		 2878 eh->h = NULL;
2879 eh->id_sec = NULL;
2880 }
2881
2882 return entry;
2883}
2884
2885/* Create an entry in the branch hash table. */
2886
2887static struct bfd_hash_entry *
4ce794b7
AM		 2888branch_hash_newfunc (struct bfd_hash_entry *entry,
2889 struct bfd_hash_table *table,
2890 const char *string)
721956f4
AM		 2891{
2892 /* Allocate the structure if it has not already been allocated by a
2893 subclass. */
2894 if (entry == NULL)
2895 {
2896 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
2897 if (entry == NULL)
2898 return entry;
2899 }
2900
2901 /* Call the allocation method of the superclass. */
2902 entry = bfd_hash_newfunc (entry, table, string);
2903 if (entry != NULL)
2904 {
2905 struct ppc_branch_hash_entry *eh;
2906
2907 /* Initialize the local fields. */
2908 eh = (struct ppc_branch_hash_entry *) entry;
2909 eh->offset = 0;
2910 eh->iter = 0;
2911 }
2912
2913 return entry;
2914}
2915
65f38f15
AM		 2916/* Create an entry in a ppc64 ELF linker hash table. */
2917
2918static struct bfd_hash_entry *
4ce794b7
AM		 2919link_hash_newfunc (struct bfd_hash_entry *entry,
2920 struct bfd_hash_table *table,
2921 const char *string)
65f38f15
AM		 2922{
2923 /* Allocate the structure if it has not already been allocated by a
2924 subclass. */
2925 if (entry == NULL)
2926 {
2927 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
2928 if (entry == NULL)
2929 return entry;
2930 }
2931
2932 /* Call the allocation method of the superclass. */
2933 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2934 if (entry != NULL)
2935 {
2936 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
2937
721956f4 2938 eh->stub_cache = NULL;
65f38f15 2939 eh->dyn_relocs = NULL;
721956f4 2940 eh->oh = NULL;
e86ce104
AM		 2941 eh->is_func = 0;
2942 eh->is_func_descriptor = 0;
1e2f5b6e 2943 eh->is_entry = 0;
e7b938ca 2944 eh->tls_mask = 0;
65f38f15
AM		 2945 }
2946
2947 return entry;
2948}
2949
2950/* Create a ppc64 ELF linker hash table. */
2951
2952static struct bfd_link_hash_table *
4ce794b7 2953ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM		 2954{
2955 struct ppc_link_hash_table *htab;
2956 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
2957
4ce794b7 2958 htab = bfd_zmalloc (amt);
65f38f15
AM		 2959 if (htab == NULL)
2960 return NULL;
2961
2962 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
2963 {
e2d34d7d 2964 free (htab);
65f38f15
AM		 2965 return NULL;
2966 }
2967
721956f4
AM		 2968 /* Init the stub hash table too. */
2969 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
2970 return NULL;
2971
2972 /* And the branch hash table. */
2973 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
2974 return NULL;
2975
3254fd24
AM		 2976 /* Initializing two fields of the union is just cosmetic. We really
2977 only care about glist, but when compiled on a 32-bit host the
2978 bfd_vma fields are larger. Setting the bfd_vma to zero makes
2979 debugger inspection of these fields look nicer. */
2980 htab->elf.init_refcount.refcount = 0;
2981 htab->elf.init_refcount.glist = NULL;
2982 htab->elf.init_offset.offset = 0;
2983 htab->elf.init_offset.glist = NULL;
2984
65f38f15
AM		 2985 return &htab->elf.root;
2986}
2987
721956f4
AM		 2988/* Free the derived linker hash table. */
2989
2990static void
4ce794b7 2991ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM		 2992{
2993 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
2994
2995 bfd_hash_table_free (&ret->stub_hash_table);
2996 bfd_hash_table_free (&ret->branch_hash_table);
2997 _bfd_generic_link_hash_table_free (hash);
2998}
2999
e717da7e
AM		 3000/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3001
3002void
3003ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3004{
3005 struct ppc_link_hash_table *htab;
3006
3007 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3008
3009/* Always hook our dynamic sections into the first bfd, which is the
3010 linker created stub bfd. This ensures that the GOT header is at
3011 the start of the output TOC section. */
3012 htab = ppc_hash_table (info);
3013 htab->stub_bfd = abfd;
3014 htab->elf.dynobj = abfd;
3015}
3016
721956f4
AM		 3017/* Build a name for an entry in the stub hash table. */
3018
3019static char *
4ce794b7
AM		 3020ppc_stub_name (const asection *input_section,
3021 const asection *sym_sec,
3022 const struct ppc_link_hash_entry *h,
3023 const Elf_Internal_Rela *rel)
721956f4
AM		 3024{
3025 char *stub_name;
3026 bfd_size_type len;
3027
3028 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3029 offsets from a sym as a branch target? In fact, we could
3030 probably assume the addend is always zero. */
3031 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3032
3033 if (h)
3034 {
3035 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3036 stub_name = bfd_malloc (len);
3037 if (stub_name != NULL)
3038 {
3039 sprintf (stub_name, "%08x_%s+%x",
3040 input_section->id & 0xffffffff,
3041 h->elf.root.root.string,
3042 (int) rel->r_addend & 0xffffffff);
3043 }
3044 }
3045 else
3046 {
ad8e1ba5 3047 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4
AM		 3048 stub_name = bfd_malloc (len);
3049 if (stub_name != NULL)
3050 {
3051 sprintf (stub_name, "%08x_%x:%x+%x",
3052 input_section->id & 0xffffffff,
3053 sym_sec->id & 0xffffffff,
3054 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3055 (int) rel->r_addend & 0xffffffff);
3056 }
3057 }
3058 return stub_name;
3059}
3060
3061/* Look up an entry in the stub hash. Stub entries are cached because
3062 creating the stub name takes a bit of time. */
3063
3064static struct ppc_stub_hash_entry *
4ce794b7
AM		 3065ppc_get_stub_entry (const asection *input_section,
3066 const asection *sym_sec,
3067 struct elf_link_hash_entry *hash,
3068 const Elf_Internal_Rela *rel,
3069 struct ppc_link_hash_table *htab)
721956f4
AM		 3070{
3071 struct ppc_stub_hash_entry *stub_entry;
3072 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3073 const asection *id_sec;
3074
3075 /* If this input section is part of a group of sections sharing one
3076 stub section, then use the id of the first section in the group.
3077 Stub names need to include a section id, as there may well be
3078 more than one stub used to reach say, printf, and we need to
3079 distinguish between them. */
3080 id_sec = htab->stub_group[input_section->id].link_sec;
3081
3082 if (h != NULL && h->stub_cache != NULL
3083 && h->stub_cache->h == h
3084 && h->stub_cache->id_sec == id_sec)
3085 {
3086 stub_entry = h->stub_cache;
3087 }
3088 else
3089 {
3090 char *stub_name;
3091
3092 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3093 if (stub_name == NULL)
3094 return NULL;
3095
3096 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3097 stub_name, FALSE, FALSE);
721956f4
AM		 3098 if (h != NULL)
3099 h->stub_cache = stub_entry;
3100
3101 free (stub_name);
3102 }
3103
3104 return stub_entry;
3105}
3106
3107/* Add a new stub entry to the stub hash. Not all fields of the new
3108 stub entry are initialised. */
3109
3110static struct ppc_stub_hash_entry *
4ce794b7
AM		 3111ppc_add_stub (const char *stub_name,
3112 asection *section,
3113 struct ppc_link_hash_table *htab)
721956f4
AM		 3114{
3115 asection *link_sec;
3116 asection *stub_sec;
3117 struct ppc_stub_hash_entry *stub_entry;
3118
3119 link_sec = htab->stub_group[section->id].link_sec;
3120 stub_sec = htab->stub_group[section->id].stub_sec;
3121 if (stub_sec == NULL)
3122 {
3123 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3124 if (stub_sec == NULL)
3125 {
d4c88bbb 3126 size_t namelen;
721956f4
AM		 3127 bfd_size_type len;
3128 char *s_name;
3129
d4c88bbb
AM		 3130 namelen = strlen (link_sec->name);
3131 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM		 3132 s_name = bfd_alloc (htab->stub_bfd, len);
3133 if (s_name == NULL)
3134 return NULL;
3135
d4c88bbb
AM		 3136 memcpy (s_name, link_sec->name, namelen);
3137 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM		 3138 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3139 if (stub_sec == NULL)
3140 return NULL;
3141 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3142 }
3143 htab->stub_group[section->id].stub_sec = stub_sec;
3144 }
3145
3146 /* Enter this entry into the linker stub hash table. */
3147 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3148 TRUE, FALSE);
721956f4
AM		 3149 if (stub_entry == NULL)
3150 {
3151 (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
3152 bfd_archive_filename (section->owner),
3153 stub_name);
3154 return NULL;
3155 }
3156
3157 stub_entry->stub_sec = stub_sec;
3158 stub_entry->stub_offset = 0;
3159 stub_entry->id_sec = link_sec;
3160 return stub_entry;
3161}
3162
82bd7b59
AM		 3163/* Create sections for linker generated code. */
3164
b34976b6 3165static bfd_boolean
4ce794b7 3166create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM		 3167{
3168 struct ppc_link_hash_table *htab;
3169 flagword flags;
3170
3171 htab = ppc_hash_table (info);
3172
3173 /* Create .sfpr for code to save and restore fp regs. */
3174 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3175 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
721956f4 3176 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
82bd7b59
AM		 3177 if (htab->sfpr == NULL
3178 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3179 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3180 return FALSE;
82bd7b59 3181
721956f4 3182 /* Create .glink for lazy dynamic linking support. */
4ce794b7
AM		 3183 htab->glink = bfd_make_section_anyway (dynobj, ".glink");
3184 if (htab->glink == NULL
3185 || ! bfd_set_section_flags (dynobj, htab->glink, flags)
3186 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
b34976b6 3187 return FALSE;
82bd7b59 3188
721956f4
AM		 3189 /* Create .branch_lt for plt_branch stubs. */
3190 flags = (SEC_ALLOC | SEC_LOAD
3191 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3192 htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3193 if (htab->brlt == NULL
3194 || ! bfd_set_section_flags (dynobj, htab->brlt, flags)
3195 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3196 return FALSE;
721956f4
AM		 3197
3198 if (info->shared)
3199 {
3200 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3201 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM		 3202 htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
3203 if (!htab->relbrlt
3204 || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags)
3205 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
b34976b6 3206 return FALSE;
721956f4 3207 }
b34976b6 3208 return TRUE;
82bd7b59
AM		 3209}
3210
e717da7e
AM		 3211/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3212 not already done. */
65f38f15 3213
b34976b6 3214static bfd_boolean
e717da7e 3215create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3216{
e717da7e
AM		 3217 asection *got, *relgot;
3218 flagword flags;
3219 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3220
4ce794b7 3221 if (!htab->got)
e717da7e
AM		 3222 {
3223 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3224 return FALSE;
3225
3226 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3227 if (!htab->got)
3228 abort ();
3229 }
3230
3231 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3232 | SEC_LINKER_CREATED);
3233
3234 got = bfd_make_section (abfd, ".got");
3235 if (!got
3236 || !bfd_set_section_flags (abfd, got, flags)
3237 || !bfd_set_section_alignment (abfd, got, 3))
3238 return FALSE;
65f38f15 3239
e717da7e
AM		 3240 relgot = bfd_make_section (abfd, ".rela.got");
3241 if (!relgot
3242 || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY)
3243 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3244 return FALSE;
e717da7e
AM		 3245
3246 ppc64_elf_tdata (abfd)->got = got;
3247 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3248 return TRUE;
65f38f15 3249}
5bd4f169 3250
82bd7b59 3251/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3252
b34976b6 3253static bfd_boolean
4ce794b7 3254ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3255{
65f38f15 3256 struct ppc_link_hash_table *htab;
5bd4f169 3257
65f38f15 3258 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3259 return FALSE;
65f38f15 3260
e717da7e
AM		 3261 htab = ppc_hash_table (info);
3262 if (!htab->got)
3263 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM		 3264 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3265 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3266 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3267 if (!info->shared)
4ce794b7 3268 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3269
e717da7e 3270 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3271 || (!info->shared && !htab->relbss))
65f38f15
AM		 3272 abort ();
3273
b34976b6 3274 return TRUE;
5bd4f169
AM		 3275}
3276
65f38f15
AM		 3277/* Copy the extra info we tack onto an elf_link_hash_entry. */
3278
3279static void
4ce794b7
AM		 3280ppc64_elf_copy_indirect_symbol (struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3281 struct elf_link_hash_entry *dir,
3282 struct elf_link_hash_entry *ind)
65f38f15
AM		 3283{
3284 struct ppc_link_hash_entry *edir, *eind;
81848ca0 3285 flagword mask;
65f38f15
AM		 3286
3287 edir = (struct ppc_link_hash_entry *) dir;
3288 eind = (struct ppc_link_hash_entry *) ind;
3289
411e1bfb 3290 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3291 if (eind->dyn_relocs != NULL)
65f38f15 3292 {
bbd7ec4a
AM		 3293 if (edir->dyn_relocs != NULL)
3294 {
3295 struct ppc_dyn_relocs **pp;
3296 struct ppc_dyn_relocs *p;
3297
411e1bfb 3298 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM		 3299 abort ();
3300
3301 /* Add reloc counts against the weak sym to the strong sym
3302 list. Merge any entries against the same section. */
3303 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3304 {
3305 struct ppc_dyn_relocs *q;
3306
3307 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3308 if (q->sec == p->sec)
3309 {
3310 q->pc_count += p->pc_count;
3311 q->count += p->count;
3312 *pp = p->next;
3313 break;
3314 }
3315 if (q == NULL)
3316 pp = &p->next;
3317 }
3318 *pp = edir->dyn_relocs;
3319 }
3320
65f38f15
AM		 3321 edir->dyn_relocs = eind->dyn_relocs;
3322 eind->dyn_relocs = NULL;
3323 }
65f38f15 3324
6349e628
AM		 3325 edir->is_func |= eind->is_func;
3326 edir->is_func_descriptor |= eind->is_func_descriptor;
3327 edir->is_entry |= eind->is_entry;
58ac9f71 3328 edir->tls_mask |= eind->tls_mask;
6349e628 3329
81848ca0
AM		 3330 mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR
3331 | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF);
3332 /* If called to transfer flags for a weakdef during processing
3333 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
3334 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3335 if (ELIMINATE_COPY_RELOCS
3336 && eind->elf.root.type != bfd_link_hash_indirect
3337 && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
3338 mask &= ~ELF_LINK_NON_GOT_REF;
3339
3340 edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask;
6349e628
AM		 3341
3342 /* If we were called to copy over info for a weak sym, that's all. */
3343 if (eind->elf.root.type != bfd_link_hash_indirect)
3344 return;
3345
81848ca0
AM		 3346 /* Copy over got entries that we may have already seen to the
3347 symbol which just became indirect. */
411e1bfb
AM		 3348 if (eind->elf.got.glist != NULL)
3349 {
3350 if (edir->elf.got.glist != NULL)
3351 {
3352 struct got_entry **entp;
3353 struct got_entry *ent;
3354
3355 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3356 {
3357 struct got_entry *dent;
3358
3359 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3360 if (dent->addend == ent->addend
e717da7e 3361 && dent->owner == ent->owner
411e1bfb
AM		 3362 && dent->tls_type == ent->tls_type)
3363 {
3364 dent->got.refcount += ent->got.refcount;
3365 *entp = ent->next;
3366 break;
3367 }
3368 if (dent == NULL)
3369 entp = &ent->next;
3370 }
3371 *entp = edir->elf.got.glist;
3372 }
3373
3374 edir->elf.got.glist = eind->elf.got.glist;
3375 eind->elf.got.glist = NULL;
3376 }
3377
3378 /* And plt entries. */
3379 if (eind->elf.plt.plist != NULL)
3380 {
3381 if (edir->elf.plt.plist != NULL)
3382 {
3383 struct plt_entry **entp;
3384 struct plt_entry *ent;
3385
3386 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3387 {
3388 struct plt_entry *dent;
3389
3390 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3391 if (dent->addend == ent->addend)
3392 {
3393 dent->plt.refcount += ent->plt.refcount;
3394 *entp = ent->next;
3395 break;
3396 }
3397 if (dent == NULL)
3398 entp = &ent->next;
3399 }
3400 *entp = edir->elf.plt.plist;
3401 }
3402
3403 edir->elf.plt.plist = eind->elf.plt.plist;
3404 eind->elf.plt.plist = NULL;
3405 }
3406
411e1bfb
AM		 3407 if (edir->elf.dynindx == -1)
3408 {
3409 edir->elf.dynindx = eind->elf.dynindx;
3410 edir->elf.dynstr_index = eind->elf.dynstr_index;
3411 eind->elf.dynindx = -1;
3412 eind->elf.dynstr_index = 0;
3413 }
3414 else
3415 BFD_ASSERT (eind->elf.dynindx == -1);
3416}
3417
3418/* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3419 symbols undefined on the command-line. */
3420
3421bfd_boolean
4ce794b7 3422ppc64_elf_mark_entry_syms (struct bfd_link_info *info)
411e1bfb
AM		 3423{
3424 struct ppc_link_hash_table *htab;
3425 struct bfd_sym_chain *sym;
3426
3427 htab = ppc_hash_table (info);
3428 for (sym = info->gc_sym_list; sym; sym = sym->next)
3429 {
3430 struct elf_link_hash_entry *h;
3431
3432 h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
3433 if (h != NULL)
3434 ((struct ppc_link_hash_entry *) h)->is_entry = 1;
3435 }
3436 return TRUE;
3437}
3438
3439static bfd_boolean
4ce794b7
AM		 3440update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
3441 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM		 3442{
3443 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 3444 char *local_got_tls_masks;
411e1bfb
AM		 3445
3446 if (local_got_ents == NULL)
3447 {
3448 bfd_size_type size = symtab_hdr->sh_info;
3449
e7b938ca 3450 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 3451 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM		 3452 if (local_got_ents == NULL)
3453 return FALSE;
3454 elf_local_got_ents (abfd) = local_got_ents;
3455 }
3456
3457 if ((tls_type & TLS_EXPLICIT) == 0)
3458 {
3459 struct got_entry *ent;
3460
3461 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM		 3462 if (ent->addend == r_addend
3463 && ent->owner == abfd
3464 && ent->tls_type == tls_type)
411e1bfb
AM		 3465 break;
3466 if (ent == NULL)
3467 {
3468 bfd_size_type amt = sizeof (*ent);
4ce794b7 3469 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 3470 if (ent == NULL)
3471 return FALSE;
3472 ent->next = local_got_ents[r_symndx];
3473 ent->addend = r_addend;
e717da7e 3474 ent->owner = abfd;
411e1bfb
AM		 3475 ent->tls_type = tls_type;
3476 ent->got.refcount = 0;
3477 local_got_ents[r_symndx] = ent;
3478 }
3479 ent->got.refcount += 1;
3480 }
3481
e7b938ca
AM		 3482 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
3483 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 3484 return TRUE;
65f38f15
AM		 3485}
3486
411e1bfb 3487static bfd_boolean
4ce794b7 3488update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 3489{
411e1bfb 3490 struct plt_entry *ent;
1e2f5b6e 3491
411e1bfb
AM		 3492 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
3493 if (ent->addend == addend)
3494 break;
3495 if (ent == NULL)
1e2f5b6e 3496 {
411e1bfb 3497 bfd_size_type amt = sizeof (*ent);
4ce794b7 3498 ent = bfd_alloc (abfd, amt);
411e1bfb
AM		 3499 if (ent == NULL)
3500 return FALSE;
3501 ent->next = eh->elf.plt.plist;
3502 ent->addend = addend;
3503 ent->plt.refcount = 0;
3504 eh->elf.plt.plist = ent;
1e2f5b6e 3505 }
411e1bfb
AM		 3506 ent->plt.refcount += 1;
3507 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3508 eh->is_func = 1;
b34976b6 3509 return TRUE;
1e2f5b6e
AM		 3510}
3511
5bd4f169 3512/* Look through the relocs for a section during the first phase, and
65f38f15 3513 calculate needed space in the global offset table, procedure
5d1634d7 3514 linkage table, and dynamic reloc sections. */
5bd4f169 3515
b34976b6 3516static bfd_boolean
4ce794b7
AM		 3517ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
3518 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 3519{
65f38f15 3520 struct ppc_link_hash_table *htab;
5bd4f169
AM		 3521 Elf_Internal_Shdr *symtab_hdr;
3522 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3523 const Elf_Internal_Rela *rel;
3524 const Elf_Internal_Rela *rel_end;
5bd4f169 3525 asection *sreloc;
1e2f5b6e 3526 asection **opd_sym_map;
5bd4f169 3527
1049f94e 3528 if (info->relocatable)
b34976b6 3529 return TRUE;
5bd4f169 3530
65f38f15 3531 htab = ppc_hash_table (info);
5bd4f169 3532 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM		 3533
3534 sym_hashes = elf_sym_hashes (abfd);
3535 sym_hashes_end = (sym_hashes
1e2f5b6e
AM		 3536 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
3537 - symtab_hdr->sh_info);
5bd4f169
AM		 3538
3539 sreloc = NULL;
1e2f5b6e
AM		 3540 opd_sym_map = NULL;
3541 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
3542 {
3543 /* Garbage collection needs some extra help with .opd sections.
3544 We don't want to necessarily keep everything referenced by
3545 relocs in .opd, as that would keep all functions. Instead,
3546 if we reference an .opd symbol (a function descriptor), we
3547 want to keep the function code symbol's section. This is
3548 easy for global symbols, but for local syms we need to keep
3549 information about the associated function section. Later, if
3550 edit_opd deletes entries, we'll use this array to adjust
3551 local syms in .opd. */
3552 union opd_info {
3553 asection *func_section;
3554 long entry_adjust;
3555 };
3556 bfd_size_type amt;
3557
3558 amt = sec->_raw_size * sizeof (union opd_info) / 24;
4ce794b7 3559 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 3560 if (opd_sym_map == NULL)
b34976b6 3561 return FALSE;
f0abc2a1 3562 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 3563 }
5bd4f169 3564
82bd7b59
AM		 3565 if (htab->sfpr == NULL
3566 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 3567 return FALSE;
82bd7b59 3568
5bd4f169
AM		 3569 rel_end = relocs + sec->reloc_count;
3570 for (rel = relocs; rel < rel_end; rel++)
3571 {
3572 unsigned long r_symndx;
3573 struct elf_link_hash_entry *h;
04c9666a 3574 enum elf_ppc64_reloc_type r_type;
411e1bfb 3575 int tls_type = 0;
5bd4f169
AM		 3576
3577 r_symndx = ELF64_R_SYM (rel->r_info);
3578 if (r_symndx < symtab_hdr->sh_info)
3579 h = NULL;
3580 else
3581 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3582
4ce794b7 3583 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 3584 switch (r_type)
5bd4f169 3585 {
411e1bfb
AM		 3586 case R_PPC64_GOT_TLSLD16:
3587 case R_PPC64_GOT_TLSLD16_LO:
3588 case R_PPC64_GOT_TLSLD16_HI:
3589 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 3590 ppc64_tlsld_got (abfd)->refcount += 1;
951fd09b 3591 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 3592 goto dogottls;
3593
3594 case R_PPC64_GOT_TLSGD16:
3595 case R_PPC64_GOT_TLSGD16_LO:
3596 case R_PPC64_GOT_TLSGD16_HI:
3597 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 3598 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 3599 goto dogottls;
3600
3601 case R_PPC64_GOT_TPREL16_DS:
3602 case R_PPC64_GOT_TPREL16_LO_DS:
3603 case R_PPC64_GOT_TPREL16_HI:
3604 case R_PPC64_GOT_TPREL16_HA:
3605 if (info->shared)
3606 info->flags |= DF_STATIC_TLS;
3607 tls_type = TLS_TLS | TLS_TPREL;
3608 goto dogottls;
3609
3610 case R_PPC64_GOT_DTPREL16_DS:
3611 case R_PPC64_GOT_DTPREL16_LO_DS:
3612 case R_PPC64_GOT_DTPREL16_HI:
3613 case R_PPC64_GOT_DTPREL16_HA:
3614 tls_type = TLS_TLS | TLS_DTPREL;
3615 dogottls:
3616 sec->has_tls_reloc = 1;
3617 /* Fall thru */
3618
5bd4f169 3619 case R_PPC64_GOT16:
5bd4f169 3620 case R_PPC64_GOT16_DS:
65f38f15
AM		 3621 case R_PPC64_GOT16_HA:
3622 case R_PPC64_GOT16_HI:
3623 case R_PPC64_GOT16_LO:
5bd4f169 3624 case R_PPC64_GOT16_LO_DS:
65f38f15 3625 /* This symbol requires a global offset table entry. */
ad8e1ba5 3626 sec->has_gp_reloc = 1;
e717da7e
AM		 3627 if (ppc64_elf_tdata (abfd)->got == NULL
3628 && !create_got_section (abfd, info))
b34976b6 3629 return FALSE;
5bd4f169
AM		 3630
3631 if (h != NULL)
3632 {
411e1bfb
AM		 3633 struct ppc_link_hash_entry *eh;
3634 struct got_entry *ent;
65f38f15 3635
411e1bfb
AM		 3636 eh = (struct ppc_link_hash_entry *) h;
3637 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
3638 if (ent->addend == rel->r_addend
e717da7e 3639 && ent->owner == abfd
411e1bfb
AM		 3640 && ent->tls_type == tls_type)
3641 break;
3642 if (ent == NULL)
5bd4f169 3643 {
411e1bfb 3644 bfd_size_type amt = sizeof (*ent);
4ce794b7 3645 ent = bfd_alloc (abfd, amt);
411e1bfb 3646 if (ent == NULL)
b34976b6 3647 return FALSE;
411e1bfb
AM		 3648 ent->next = eh->elf.got.glist;
3649 ent->addend = rel->r_addend;
e717da7e 3650 ent->owner = abfd;
411e1bfb
AM		 3651 ent->tls_type = tls_type;
3652 ent->got.refcount = 0;
3653 eh->elf.got.glist = ent;
5bd4f169 3654 }
411e1bfb 3655 ent->got.refcount += 1;
e7b938ca 3656 eh->tls_mask |= tls_type;
5bd4f169 3657 }
411e1bfb
AM		 3658 else
3659 /* This is a global offset table entry for a local symbol. */
3660 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3661 rel->r_addend, tls_type))
3662 return FALSE;
5bd4f169
AM		 3663 break;
3664
5bd4f169 3665 case R_PPC64_PLT16_HA:
65f38f15
AM		 3666 case R_PPC64_PLT16_HI:
3667 case R_PPC64_PLT16_LO:
3668 case R_PPC64_PLT32:
3669 case R_PPC64_PLT64:
5bd4f169 3670 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM		 3671 actually build the entry in adjust_dynamic_symbol,
3672 because this might be a case of linking PIC code without
3673 linking in any dynamic objects, in which case we don't
3674 need to generate a procedure linkage table after all. */
5bd4f169
AM		 3675 if (h == NULL)
3676 {
3677 /* It does not make sense to have a procedure linkage
3fad3c7c 3678 table entry for a local symbol. */
5bd4f169 3679 bfd_set_error (bfd_error_bad_value);
b34976b6 3680 return FALSE;
5bd4f169 3681 }
411e1bfb
AM		 3682 else
3683 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3684 rel->r_addend))
3685 return FALSE;
5bd4f169
AM		 3686 break;
3687
3688 /* The following relocations don't need to propagate the
3689 relocation if linking a shared object since they are
3690 section relative. */
3691 case R_PPC64_SECTOFF:
3692 case R_PPC64_SECTOFF_LO:
3693 case R_PPC64_SECTOFF_HI:
3694 case R_PPC64_SECTOFF_HA:
3695 case R_PPC64_SECTOFF_DS:
3696 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM		 3697 case R_PPC64_DTPREL16:
3698 case R_PPC64_DTPREL16_LO:
3699 case R_PPC64_DTPREL16_HI:
3700 case R_PPC64_DTPREL16_HA:
3701 case R_PPC64_DTPREL16_DS:
3702 case R_PPC64_DTPREL16_LO_DS:
3703 case R_PPC64_DTPREL16_HIGHER:
3704 case R_PPC64_DTPREL16_HIGHERA:
3705 case R_PPC64_DTPREL16_HIGHEST:
3706 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM		 3707 break;
3708
ad8e1ba5
AM		 3709 /* Nor do these. */
3710 case R_PPC64_TOC16:
3711 case R_PPC64_TOC16_LO:
3712 case R_PPC64_TOC16_HI:
3713 case R_PPC64_TOC16_HA:
3714 case R_PPC64_TOC16_DS:
3715 case R_PPC64_TOC16_LO_DS:
3716 sec->has_gp_reloc = 1;
3717 break;
3718
5bd4f169
AM		 3719 /* This relocation describes the C++ object vtable hierarchy.
3720 Reconstruct it for later use during GC. */
3721 case R_PPC64_GNU_VTINHERIT:
3722 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3723 return FALSE;
5bd4f169
AM		 3724 break;
3725
3726 /* This relocation describes which C++ vtable entries are actually
3727 used. Record for later use during GC. */
3728 case R_PPC64_GNU_VTENTRY:
3729 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 3730 return FALSE;
5bd4f169
AM		 3731 break;
3732
721956f4
AM		 3733 case R_PPC64_REL14:
3734 case R_PPC64_REL14_BRTAKEN:
3735 case R_PPC64_REL14_BRNTAKEN:
3736 htab->has_14bit_branch = 1;
3737 /* Fall through. */
3738
5d1634d7 3739 case R_PPC64_REL24:
e86ce104
AM		 3740 if (h != NULL
3741 && h->root.root.string[0] == '.'
3742 && h->root.root.string[1] != 0)
5d1634d7
AM		 3743 {
3744 /* We may need a .plt entry if the function this reloc
3745 refers to is in a shared lib. */
411e1bfb
AM		 3746 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3747 rel->r_addend))
3748 return FALSE;
3749 if (h == htab->tls_get_addr)
3750 sec->has_tls_reloc = 1;
a48ebf4d
AM		 3751 else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15)
3752 == 0)
3753 && (h->root.root.string[15] == 0
3754 || h->root.root.string[15] == '@'))
411e1bfb
AM		 3755 {
3756 htab->tls_get_addr = h;
3757 sec->has_tls_reloc = 1;
3758 }
3759 }
3760 break;
3761
3762 case R_PPC64_TPREL64:
3763 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
3764 if (info->shared)
3765 info->flags |= DF_STATIC_TLS;
3766 goto dotlstoc;
3767
3768 case R_PPC64_DTPMOD64:
3769 if (rel + 1 < rel_end
3770 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
3771 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 3772 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 3773 else
951fd09b 3774 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM		 3775 goto dotlstoc;
3776
3777 case R_PPC64_DTPREL64:
3778 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
3779 if (rel != relocs
3780 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
3781 && rel[-1].r_offset == rel->r_offset - 8)
3782 /* This is the second reloc of a dtpmod, dtprel pair.
3783 Don't mark with TLS_DTPREL. */
3784 goto dodyn;
3785
3786 dotlstoc:
3787 sec->has_tls_reloc = 1;
3788 if (h != NULL)
3789 {
3790 struct ppc_link_hash_entry *eh;
3791 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 3792 eh->tls_mask |= tls_type;
411e1bfb
AM		 3793 }
3794 else
3795 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3796 rel->r_addend, tls_type))
3797 return FALSE;
3798
3799 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3800 {
e7b938ca 3801 /* One extra to simplify get_tls_mask. */
951fd09b 3802 bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1;
4ce794b7 3803 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
411e1bfb
AM		 3804 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3805 return FALSE;
3806 }
3807 BFD_ASSERT (rel->r_offset % 8 == 0);
3808 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM		 3809
3810 /* Mark the second slot of a GD or LD entry.
3811 -1 to indicate GD and -2 to indicate LD. */
3812 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3813 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
3814 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3815 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM		 3816 goto dodyn;
3817
3818 case R_PPC64_TPREL16:
3819 case R_PPC64_TPREL16_LO:
3820 case R_PPC64_TPREL16_HI:
3821 case R_PPC64_TPREL16_HA:
3822 case R_PPC64_TPREL16_DS:
3823 case R_PPC64_TPREL16_LO_DS:
3824 case R_PPC64_TPREL16_HIGHER:
3825 case R_PPC64_TPREL16_HIGHERA:
3826 case R_PPC64_TPREL16_HIGHEST:
3827 case R_PPC64_TPREL16_HIGHESTA:
3828 if (info->shared)
3829 {
3830 info->flags |= DF_STATIC_TLS;
3831 goto dodyn;
5d1634d7
AM		 3832 }
3833 break;
3834
e86ce104 3835 case R_PPC64_ADDR64:
1e2f5b6e 3836 if (opd_sym_map != NULL
e86ce104
AM		 3837 && h != NULL
3838 && h->root.root.string[0] == '.'
3839 && h->root.root.string[1] != 0)
3840 {
3841 struct elf_link_hash_entry *fdh;
3842
3843 fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1,
b34976b6 3844 FALSE, FALSE, FALSE);
e86ce104
AM		 3845 if (fdh != NULL)
3846 {
e86ce104 3847 ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1;
721956f4 3848 ((struct ppc_link_hash_entry *) fdh)->oh = h;
e86ce104 3849 ((struct ppc_link_hash_entry *) h)->is_func = 1;
721956f4 3850 ((struct ppc_link_hash_entry *) h)->oh = fdh;
e86ce104
AM		 3851 }
3852 }
1e2f5b6e
AM		 3853 if (opd_sym_map != NULL
3854 && h == NULL
3855 && rel + 1 < rel_end
4ce794b7 3856 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e
AM		 3857 {
3858 asection *s;
3859
3860 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3861 r_symndx);
3862 if (s == NULL)
b34976b6 3863 return FALSE;
1e2f5b6e
AM		 3864 else if (s != sec)
3865 opd_sym_map[rel->r_offset / 24] = s;
3866 }
e86ce104
AM		 3867 /* Fall through. */
3868
04c9666a 3869 case R_PPC64_REL30:
5bd4f169 3870 case R_PPC64_REL32:
04c9666a 3871 case R_PPC64_REL64:
65f38f15
AM		 3872 case R_PPC64_ADDR14:
3873 case R_PPC64_ADDR14_BRNTAKEN:
3874 case R_PPC64_ADDR14_BRTAKEN:
3875 case R_PPC64_ADDR16:
3876 case R_PPC64_ADDR16_DS:
3877 case R_PPC64_ADDR16_HA:
3878 case R_PPC64_ADDR16_HI:
3879 case R_PPC64_ADDR16_HIGHER:
3880 case R_PPC64_ADDR16_HIGHERA:
3881 case R_PPC64_ADDR16_HIGHEST:
3882 case R_PPC64_ADDR16_HIGHESTA:
3883 case R_PPC64_ADDR16_LO:
3884 case R_PPC64_ADDR16_LO_DS:
3885 case R_PPC64_ADDR24:
65f38f15 3886 case R_PPC64_ADDR32:
65f38f15
AM		 3887 case R_PPC64_UADDR16:
3888 case R_PPC64_UADDR32:
3889 case R_PPC64_UADDR64:
5bd4f169 3890 case R_PPC64_TOC:
81848ca0
AM		 3891 if (h != NULL && !info->shared)
3892 /* We may need a copy reloc. */
3893 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
3894
41bd81ab 3895 /* Don't propagate .opd relocs. */
1e2f5b6e 3896 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 3897 break;
e86ce104 3898
f4656909
AM		 3899 /* Don't propagate relocs that the dynamic linker won't relocate. */
3900 if ((sec->flags & SEC_ALLOC) == 0)
3901 break;
3902
65f38f15
AM		 3903 /* If we are creating a shared library, and this is a reloc
3904 against a global symbol, or a non PC relative reloc
3905 against a local symbol, then we need to copy the reloc
3906 into the shared library. However, if we are linking with
3907 -Bsymbolic, we do not need to copy a reloc against a
3908 global symbol which is defined in an object we are
3909 including in the link (i.e., DEF_REGULAR is set). At
3910 this point we have not seen all the input files, so it is
3911 possible that DEF_REGULAR is not set now but will be set
3912 later (it is never cleared). In case of a weak definition,
3913 DEF_REGULAR may be cleared later by a strong definition in
3914 a shared library. We account for that possibility below by
f4656909 3915 storing information in the dyn_relocs field of the hash
65f38f15
AM		 3916 table entry. A similar situation occurs when creating
3917 shared libraries and symbol visibility changes render the
3918 symbol local.
3919
3920 If on the other hand, we are creating an executable, we
3921 may need to keep relocations for symbols satisfied by a
3922 dynamic library if we manage to avoid copy relocs for the
3923 symbol. */
411e1bfb 3924 dodyn:
65f38f15 3925 if ((info->shared
411e1bfb 3926 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM		 3927 || (h != NULL
3928 && (! info->symbolic
3929 || h->root.type == bfd_link_hash_defweak
3930 || (h->elf_link_hash_flags
3931 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
f4656909
AM		 3932 || (ELIMINATE_COPY_RELOCS
3933 && !info->shared
65f38f15
AM		 3934 && h != NULL
3935 && (h->root.type == bfd_link_hash_defweak
3936 || (h->elf_link_hash_flags
3937 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
5bd4f169 3938 {
ec338859
AM		 3939 struct ppc_dyn_relocs *p;
3940 struct ppc_dyn_relocs **head;
3941
65f38f15
AM		 3942 /* We must copy these reloc types into the output file.
3943 Create a reloc section in dynobj and make room for
3944 this reloc. */
5bd4f169
AM		 3945 if (sreloc == NULL)
3946 {
3947 const char *name;
65f38f15 3948 bfd *dynobj;
5bd4f169
AM		 3949
3950 name = (bfd_elf_string_from_elf_section
3951 (abfd,
3952 elf_elfheader (abfd)->e_shstrndx,
3953 elf_section_data (sec)->rel_hdr.sh_name));
3954 if (name == NULL)
b34976b6 3955 return FALSE;
5bd4f169 3956
65f38f15
AM		 3957 if (strncmp (name, ".rela", 5) != 0
3958 || strcmp (bfd_get_section_name (abfd, sec),
3959 name + 5) != 0)
3960 {
3961 (*_bfd_error_handler)
3962 (_("%s: bad relocation section name `%s\'"),
3963 bfd_archive_filename (abfd), name);
5d1634d7 3964 bfd_set_error (bfd_error_bad_value);
65f38f15
AM		 3965 }
3966
65f38f15 3967 dynobj = htab->elf.dynobj;
5bd4f169
AM		 3968 sreloc = bfd_get_section_by_name (dynobj, name);
3969 if (sreloc == NULL)
3970 {
3971 flagword flags;
3972
3973 sreloc = bfd_make_section (dynobj, name);
3974 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3975 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3976 if ((sec->flags & SEC_ALLOC) != 0)
3977 flags |= SEC_ALLOC | SEC_LOAD;
3978 if (sreloc == NULL
3979 || ! bfd_set_section_flags (dynobj, sreloc, flags)
65f38f15 3980 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 3981 return FALSE;
5bd4f169 3982 }
65f38f15 3983 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM		 3984 }
3985
65f38f15
AM		 3986 /* If this is a global symbol, we count the number of
3987 relocations we need for this symbol. */
3988 if (h != NULL)
3989 {
ec338859 3990 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM		 3991 }
3992 else
3993 {
ec338859
AM		 3994 /* Track dynamic relocs needed for local syms too.
3995 We really need local syms available to do this
3996 easily. Oh well. */
3997
3998 asection *s;
3999 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4000 sec, r_symndx);
4001 if (s == NULL)
b34976b6 4002 return FALSE;
ec338859
AM		 4003
4004 head = ((struct ppc_dyn_relocs **)
4005 &elf_section_data (s)->local_dynrel);
65f38f15 4006 }
ec338859
AM		 4007
4008 p = *head;
4009 if (p == NULL || p->sec != sec)
4010 {
4ce794b7 4011 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4012 if (p == NULL)
b34976b6 4013 return FALSE;
ec338859
AM		 4014 p->next = *head;
4015 *head = p;
4016 p->sec = sec;
4017 p->count = 0;
4018 p->pc_count = 0;
4019 }
4020
4021 p->count += 1;
411e1bfb 4022 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4023 p->pc_count += 1;
65f38f15 4024 }
5bd4f169 4025 break;
65f38f15
AM		 4026
4027 default:
96e0dda4 4028 break;
5bd4f169
AM		 4029 }
4030 }
4031
b34976b6 4032 return TRUE;
5bd4f169
AM		 4033}
4034
4035/* Return the section that should be marked against GC for a given
4036 relocation. */
4037
4038static asection *
4ce794b7
AM		 4039ppc64_elf_gc_mark_hook (asection *sec,
4040 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4041 Elf_Internal_Rela *rel,
4042 struct elf_link_hash_entry *h,
4043 Elf_Internal_Sym *sym)
5bd4f169 4044{
1e2f5b6e
AM		 4045 asection *rsec = NULL;
4046
5bd4f169
AM		 4047 if (h != NULL)
4048 {
04c9666a 4049 enum elf_ppc64_reloc_type r_type;
1e2f5b6e 4050 struct ppc_link_hash_entry *fdh;
a33d1f77 4051
4ce794b7 4052 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4053 switch (r_type)
5bd4f169
AM		 4054 {
4055 case R_PPC64_GNU_VTINHERIT:
4056 case R_PPC64_GNU_VTENTRY:
4057 break;
4058
4059 default:
4060 switch (h->root.type)
4061 {
4062 case bfd_link_hash_defined:
4063 case bfd_link_hash_defweak:
1e2f5b6e
AM		 4064 fdh = (struct ppc_link_hash_entry *) h;
4065
4066 /* Function descriptor syms cause the associated
4067 function code sym section to be marked. */
4068 if (fdh->is_func_descriptor)
4069 rsec = fdh->oh->root.u.def.section;
4070
4071 /* Function entry syms return NULL if they are in .opd
4072 and are not ._start (or others undefined on the ld
4073 command line). Thus we avoid marking all function
b34976b6 4074 sections, as all functions are referenced in .opd. */
1e2f5b6e
AM		 4075 else if ((fdh->oh != NULL
4076 && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry)
f0abc2a1 4077 || ppc64_elf_section_data (sec)->opd.func_sec == NULL)
1e2f5b6e
AM		 4078 rsec = h->root.u.def.section;
4079 break;
5bd4f169
AM		 4080
4081 case bfd_link_hash_common:
1e2f5b6e
AM		 4082 rsec = h->root.u.c.p->section;
4083 break;
5bd4f169
AM		 4084
4085 default:
4086 break;
4087 }
4088 }
4089 }
4090 else
4091 {
1e2f5b6e
AM		 4092 asection **opd_sym_section;
4093
4094 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
f0abc2a1 4095 opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec;
1e2f5b6e
AM		 4096 if (opd_sym_section != NULL)
4097 rsec = opd_sym_section[sym->st_value / 24];
f0abc2a1 4098 else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL)
1e2f5b6e 4099 rsec = NULL;
5bd4f169
AM		 4100 }
4101
1e2f5b6e 4102 return rsec;
5bd4f169
AM		 4103}
4104
65f38f15
AM		 4105/* Update the .got, .plt. and dynamic reloc reference counts for the
4106 section being removed. */
5bd4f169 4107
b34976b6 4108static bfd_boolean
4ce794b7
AM		 4109ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
4110 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4111{
411e1bfb 4112 struct ppc_link_hash_table *htab;
5bd4f169
AM		 4113 Elf_Internal_Shdr *symtab_hdr;
4114 struct elf_link_hash_entry **sym_hashes;
411e1bfb 4115 struct got_entry **local_got_ents;
5bd4f169 4116 const Elf_Internal_Rela *rel, *relend;
5bd4f169 4117
ec338859
AM		 4118 elf_section_data (sec)->local_dynrel = NULL;
4119
411e1bfb 4120 htab = ppc_hash_table (info);
5bd4f169
AM		 4121 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4122 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 4123 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM		 4124
4125 relend = relocs + sec->reloc_count;
4126 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM		 4127 {
4128 unsigned long r_symndx;
04c9666a 4129 enum elf_ppc64_reloc_type r_type;
58ac9f71 4130 struct elf_link_hash_entry *h = NULL;
411e1bfb 4131 char tls_type = 0;
5bd4f169 4132
a33d1f77 4133 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 4134 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM		 4135 if (r_symndx >= symtab_hdr->sh_info)
4136 {
4137 struct ppc_link_hash_entry *eh;
4138 struct ppc_dyn_relocs **pp;
4139 struct ppc_dyn_relocs *p;
4140
4141 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4142 eh = (struct ppc_link_hash_entry *) h;
4143
4144 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4145 if (p->sec == sec)
4146 {
4147 /* Everything must go for SEC. */
4148 *pp = p->next;
4149 break;
4150 }
4151 }
4152
a33d1f77
AM		 4153 switch (r_type)
4154 {
411e1bfb
AM		 4155 case R_PPC64_GOT_TLSLD16:
4156 case R_PPC64_GOT_TLSLD16_LO:
4157 case R_PPC64_GOT_TLSLD16_HI:
4158 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4159 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 4160 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 4161 goto dogot;
4162
4163 case R_PPC64_GOT_TLSGD16:
4164 case R_PPC64_GOT_TLSGD16_LO:
4165 case R_PPC64_GOT_TLSGD16_HI:
4166 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4167 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 4168 goto dogot;
4169
4170 case R_PPC64_GOT_TPREL16_DS:
4171 case R_PPC64_GOT_TPREL16_LO_DS:
4172 case R_PPC64_GOT_TPREL16_HI:
4173 case R_PPC64_GOT_TPREL16_HA:
4174 tls_type = TLS_TLS | TLS_TPREL;
4175 goto dogot;
4176
4177 case R_PPC64_GOT_DTPREL16_DS:
4178 case R_PPC64_GOT_DTPREL16_LO_DS:
4179 case R_PPC64_GOT_DTPREL16_HI:
4180 case R_PPC64_GOT_DTPREL16_HA:
4181 tls_type = TLS_TLS | TLS_DTPREL;
4182 goto dogot;
4183
a33d1f77
AM		 4184 case R_PPC64_GOT16:
4185 case R_PPC64_GOT16_DS:
4186 case R_PPC64_GOT16_HA:
4187 case R_PPC64_GOT16_HI:
4188 case R_PPC64_GOT16_LO:
4189 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM		 4190 dogot:
4191 {
4192 struct got_entry *ent;
4193
58ac9f71
AM		 4194 if (h != NULL)
4195 ent = h->got.glist;
411e1bfb
AM		 4196 else
4197 ent = local_got_ents[r_symndx];
4198
4199 for (; ent != NULL; ent = ent->next)
4200 if (ent->addend == rel->r_addend
e717da7e 4201 && ent->owner == abfd
411e1bfb
AM		 4202 && ent->tls_type == tls_type)
4203 break;
4204 if (ent == NULL)
4205 abort ();
4206 if (ent->got.refcount > 0)
4207 ent->got.refcount -= 1;
4208 }
a33d1f77 4209 break;
65f38f15 4210
a33d1f77
AM		 4211 case R_PPC64_PLT16_HA:
4212 case R_PPC64_PLT16_HI:
4213 case R_PPC64_PLT16_LO:
4214 case R_PPC64_PLT32:
4215 case R_PPC64_PLT64:
721956f4
AM		 4216 case R_PPC64_REL14:
4217 case R_PPC64_REL14_BRNTAKEN:
4218 case R_PPC64_REL14_BRTAKEN:
5d1634d7 4219 case R_PPC64_REL24:
58ac9f71 4220 if (h != NULL)
5d1634d7 4221 {
411e1bfb
AM		 4222 struct plt_entry *ent;
4223
411e1bfb
AM		 4224 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4225 if (ent->addend == rel->r_addend)
4226 break;
4227 if (ent == NULL)
4228 abort ();
4229 if (ent->plt.refcount > 0)
4230 ent->plt.refcount -= 1;
5d1634d7 4231 }
e86ce104 4232 break;
5d1634d7 4233
a33d1f77
AM		 4234 default:
4235 break;
4236 }
4237 }
b34976b6 4238 return TRUE;
5bd4f169
AM		 4239}
4240
e86ce104
AM		 4241/* Called via elf_link_hash_traverse to transfer dynamic linking
4242 information on function code symbol entries to their corresponding
4243 function descriptor symbol entries. */
b34976b6 4244static bfd_boolean
4ce794b7 4245func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 4246{
e86ce104 4247 struct bfd_link_info *info;
65f38f15 4248 struct ppc_link_hash_table *htab;
411e1bfb 4249 struct plt_entry *ent;
5bd4f169 4250
e92d460e 4251 if (h->root.type == bfd_link_hash_indirect)
b34976b6 4252 return TRUE;
e86ce104 4253
e92d460e
AM		 4254 if (h->root.type == bfd_link_hash_warning)
4255 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4256
4ce794b7 4257 info = inf;
65f38f15 4258 htab = ppc_hash_table (info);
5bd4f169 4259
e86ce104
AM		 4260 /* If this is a function code symbol, transfer dynamic linking
4261 information to the function descriptor symbol. */
4262 if (!((struct ppc_link_hash_entry *) h)->is_func)
b34976b6 4263 return TRUE;
e86ce104 4264
805fc799
AM		 4265 if (h->root.type == bfd_link_hash_undefweak
4266 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR))
b34976b6 4267 htab->have_undefweak = TRUE;
805fc799 4268
411e1bfb
AM		 4269 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4270 if (ent->plt.refcount > 0)
4271 break;
4272 if (ent != NULL
e86ce104
AM		 4273 && h->root.root.string[0] == '.'
4274 && h->root.root.string[1] != '\0')
5bd4f169 4275 {
721956f4 4276 struct elf_link_hash_entry *fdh = ((struct ppc_link_hash_entry *) h)->oh;
b34976b6 4277 bfd_boolean force_local;
5bd4f169 4278
648cca2c
AM		 4279 /* Find the corresponding function descriptor symbol. Create it
4280 as undefined if necessary. */
5bd4f169 4281
721956f4
AM		 4282 if (fdh == NULL)
4283 fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1,
b34976b6 4284 FALSE, FALSE, TRUE);
5bd4f169 4285
d926e03d
AM		 4286 if (fdh == NULL
4287 && info->shared
4288 && (h->root.type == bfd_link_hash_undefined
4289 || h->root.type == bfd_link_hash_undefweak))
648cca2c
AM		 4290 {
4291 bfd *abfd;
4292 asymbol *newsym;
14a793b2 4293 struct bfd_link_hash_entry *bh;
648cca2c 4294
d926e03d 4295 abfd = h->root.u.undef.abfd;
648cca2c
AM		 4296 newsym = bfd_make_empty_symbol (abfd);
4297 newsym->name = h->root.root.string + 1;
4298 newsym->section = bfd_und_section_ptr;
4299 newsym->value = 0;
4300 newsym->flags = BSF_OBJECT;
4301 if (h->root.type == bfd_link_hash_undefweak)
4302 newsym->flags |= BSF_WEAK;
4303
14a793b2 4304 bh = &fdh->root;
648cca2c
AM		 4305 if ( !(_bfd_generic_link_add_one_symbol
4306 (info, abfd, newsym->name, newsym->flags,
b34976b6 4307 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
648cca2c 4308 {
b34976b6 4309 return FALSE;
648cca2c 4310 }
14a793b2 4311 fdh = (struct elf_link_hash_entry *) bh;
d926e03d 4312 fdh->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
494dac0c
AM		 4313 fdh->size = 24;
4314 fdh->type = STT_OBJECT;
648cca2c
AM		 4315 }
4316
e86ce104
AM		 4317 if (fdh != NULL
4318 && (fdh->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
4319 && (info->shared
4320 || (fdh->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
e717da7e
AM		 4321 || (fdh->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
4322 || (fdh->root.type == bfd_link_hash_undefweak
4323 && ELF_ST_VISIBILITY (fdh->other) == STV_DEFAULT)))
e86ce104
AM		 4324 {
4325 if (fdh->dynindx == -1)
4326 if (! bfd_elf64_link_record_dynamic_symbol (info, fdh))
b34976b6 4327 return FALSE;
e86ce104
AM		 4328 fdh->elf_link_hash_flags |= (h->elf_link_hash_flags
4329 & (ELF_LINK_HASH_REF_REGULAR
4330 | ELF_LINK_HASH_REF_DYNAMIC
4331 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4332 | ELF_LINK_NON_GOT_REF));
e1fa50e7
AM		 4333 if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
4334 {
411e1bfb 4335 fdh->plt.plist = h->plt.plist;
e1fa50e7
AM		 4336 fdh->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
4337 }
e86ce104 4338 ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1;
721956f4 4339 ((struct ppc_link_hash_entry *) fdh)->oh = h;
721956f4 4340 ((struct ppc_link_hash_entry *) h)->oh = fdh;
e86ce104
AM		 4341 }
4342
4343 /* Now that the info is on the function descriptor, clear the
4344 function code sym info. Any function code syms for which we
4345 don't have a definition in a regular file, we force local.
4346 This prevents a shared library from exporting syms that have
4347 been imported from another library. Function code syms that
4348 are really in the library we must leave global to prevent the
e1fa50e7 4349 linker dragging in a definition from a static library. */
ea1e4b0d
AM		 4350 force_local = (info->shared
4351 && ((h->elf_link_hash_flags
4352 & ELF_LINK_HASH_DEF_REGULAR) == 0
4353 || fdh == NULL
4354 || (fdh->elf_link_hash_flags
4355 & ELF_LINK_HASH_DEF_REGULAR) == 0
4356 || (fdh->elf_link_hash_flags
4357 & ELF_LINK_FORCED_LOCAL) != 0));
e86ce104
AM		 4358 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4359 }
4360
b34976b6 4361 return TRUE;
e86ce104 4362}
40b8271b 4363
82bd7b59
AM		 4364#define MIN_SAVE_FPR 14
4365#define MAX_SAVE_FPR 31
4366
e86ce104 4367/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM		 4368 this hook to a) provide some gcc support functions, and b) transfer
4369 dynamic linking information gathered so far on function code symbol
4370 entries, to their corresponding function descriptor symbol entries. */
b34976b6 4371static bfd_boolean
4ce794b7
AM		 4372ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
4373 struct bfd_link_info *info)
e86ce104
AM		 4374{
4375 struct ppc_link_hash_table *htab;
82bd7b59
AM		 4376 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
4377 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
4378 unsigned int i;
4379 struct elf_link_hash_entry *h;
721956f4 4380 bfd_byte *p;
82bd7b59 4381 char sym[10];
e86ce104
AM		 4382
4383 htab = ppc_hash_table (info);
82bd7b59
AM		 4384
4385 if (htab->sfpr == NULL)
4386 /* We don't have any relocs. */
b34976b6 4387 return TRUE;
82bd7b59
AM		 4388
4389 /* First provide any missing ._savef* and ._restf* functions. */
4390 memcpy (sym, "._savef14", 10);
4391 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4392 {
4393 sym[7] = i / 10 + '0';
4394 sym[8] = i % 10 + '0';
b34976b6 4395 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4396 if (h != NULL
772119ce 4397 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 4398 {
4399 if (lowest_savef > i)
4400 lowest_savef = i;
4401 h->root.type = bfd_link_hash_defined;
4402 h->root.u.def.section = htab->sfpr;
4403 h->root.u.def.value = (i - lowest_savef) * 4;
4404 h->type = STT_FUNC;
4405 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4406 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 4407 }
4408 }
4409
4410 memcpy (sym, "._restf14", 10);
4411 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4412 {
4413 sym[7] = i / 10 + '0';
4414 sym[8] = i % 10 + '0';
b34976b6 4415 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4416 if (h != NULL
772119ce 4417 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM		 4418 {
4419 if (lowest_restf > i)
4420 lowest_restf = i;
4421 h->root.type = bfd_link_hash_defined;
4422 h->root.u.def.section = htab->sfpr;
4423 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4424 + (i - lowest_restf) * 4);
4425 h->type = STT_FUNC;
4426 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4427 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM		 4428 }
4429 }
4430
4ce794b7 4431 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 4432
82bd7b59
AM		 4433 htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4434 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
4435
4436 if (htab->sfpr->_raw_size == 0)
805fc799
AM		 4437 {
4438 if (!htab->have_undefweak)
4439 {
4440 _bfd_strip_section_from_output (info, htab->sfpr);
b34976b6 4441 return TRUE;
805fc799
AM		 4442 }
4443
4444 htab->sfpr->_raw_size = 4;
4445 }
82bd7b59 4446
4ce794b7 4447 p = bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size);
721956f4 4448 if (p == NULL)
b34976b6 4449 return FALSE;
721956f4
AM		 4450 htab->sfpr->contents = p;
4451
4452 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
4453 {
4454 unsigned int fpr = i << 21;
4455 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4456 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
4457 p += 4;
4458 }
4459 if (lowest_savef <= MAX_SAVE_FPR)
4460 {
82bd7b59
AM		 4461 bfd_put_32 (htab->elf.dynobj, BLR, p);
4462 p += 4;
721956f4 4463 }
82bd7b59 4464
721956f4
AM		 4465 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
4466 {
4467 unsigned int fpr = i << 21;
4468 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4469 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
82bd7b59
AM		 4470 p += 4;
4471 }
721956f4
AM		 4472 if (lowest_restf <= MAX_SAVE_FPR
4473 || htab->sfpr->_raw_size == 4)
4474 {
4475 bfd_put_32 (htab->elf.dynobj, BLR, p);
4476 }
82bd7b59 4477
b34976b6 4478 return TRUE;
e86ce104
AM		 4479}
4480
4481/* Adjust a symbol defined by a dynamic object and referenced by a
4482 regular object. The current definition is in some section of the
4483 dynamic object, but we're not including those sections. We have to
4484 change the definition to something the rest of the link can
4485 understand. */
4486
b34976b6 4487static bfd_boolean
4ce794b7
AM		 4488ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4489 struct elf_link_hash_entry *h)
e86ce104
AM		 4490{
4491 struct ppc_link_hash_table *htab;
e86ce104
AM		 4492 asection *s;
4493 unsigned int power_of_two;
4494
4495 htab = ppc_hash_table (info);
4496
4497 /* Deal with function syms. */
4498 if (h->type == STT_FUNC
4499 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4500 {
4501 /* Clear procedure linkage table information for any symbol that
4502 won't need a .plt entry. */
411e1bfb
AM		 4503 struct plt_entry *ent;
4504 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4505 if (ent->plt.refcount > 0)
4506 break;
e86ce104 4507 if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor
411e1bfb 4508 || ent == NULL
9c7a29a3
AM		 4509 || SYMBOL_CALLS_LOCAL (info, h)
4510 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4511 && h->root.type == bfd_link_hash_undefweak))
40b8271b 4512 {
411e1bfb 4513 h->plt.plist = NULL;
40b8271b 4514 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
40b8271b 4515 }
5bd4f169 4516 }
bbd7ec4a 4517 else
411e1bfb 4518 h->plt.plist = NULL;
5bd4f169
AM		 4519
4520 /* If this is a weak symbol, and there is a real definition, the
4521 processor independent code will have arranged for us to see the
4522 real definition first, and we can just use the same value. */
4523 if (h->weakdef != NULL)
4524 {
4525 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
4526 || h->weakdef->root.type == bfd_link_hash_defweak);
4527 h->root.u.def.section = h->weakdef->root.u.def.section;
4528 h->root.u.def.value = h->weakdef->root.u.def.value;
a23b6845
AM		 4529 if (ELIMINATE_COPY_RELOCS)
4530 h->elf_link_hash_flags
4531 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
4532 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
b34976b6 4533 return TRUE;
5bd4f169
AM		 4534 }
4535
5bd4f169
AM		 4536 /* If we are creating a shared library, we must presume that the
4537 only references to the symbol are via the global offset table.
4538 For such cases we need not do anything here; the relocations will
4539 be handled correctly by relocate_section. */
4540 if (info->shared)
b34976b6 4541 return TRUE;
5bd4f169 4542
65f38f15
AM		 4543 /* If there are no references to this symbol that do not use the
4544 GOT, we don't need to generate a copy reloc. */
4545 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
b34976b6 4546 return TRUE;
65f38f15 4547
f4656909 4548 if (ELIMINATE_COPY_RELOCS)
65f38f15 4549 {
f4656909
AM		 4550 struct ppc_link_hash_entry * eh;
4551 struct ppc_dyn_relocs *p;
65f38f15 4552
f4656909
AM		 4553 eh = (struct ppc_link_hash_entry *) h;
4554 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4555 {
4556 s = p->sec->output_section;
4557 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4558 break;
4559 }
4560
4561 /* If we didn't find any dynamic relocs in read-only sections, then
4562 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4563 if (p == NULL)
4564 {
4565 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
4566 return TRUE;
4567 }
65f38f15
AM		 4568 }
4569
5d35169e
AM		 4570 if (h->plt.plist != NULL)
4571 return TRUE;
4572
4573 /* This is a reference to a symbol defined by a dynamic object which
4574 is not a function. */
4575
5bd4f169
AM		 4576 /* We must allocate the symbol in our .dynbss section, which will
4577 become part of the .bss section of the executable. There will be
4578 an entry for this symbol in the .dynsym section. The dynamic
4579 object will contain position independent code, so all references
4580 from the dynamic object to this symbol will go through the global
4581 offset table. The dynamic linker will use the .dynsym entry to
4582 determine the address it must put in the global offset table, so
4583 both the dynamic object and the regular object will refer to the
4584 same memory location for the variable. */
5bd4f169 4585
04c9666a
AM		 4586 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4587 to copy the initial value out of the dynamic object and into the
5bd4f169
AM		 4588 runtime process image. We need to remember the offset into the
4589 .rela.bss section we are going to use. */
4590 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4591 {
4ce794b7 4592 htab->relbss->_raw_size += sizeof (Elf64_External_Rela);
5bd4f169
AM		 4593 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
4594 }
4595
4596 /* We need to figure out the alignment required for this symbol. I
4597 have no idea how ELF linkers handle this. */
4598 power_of_two = bfd_log2 (h->size);
4599 if (power_of_two > 4)
4600 power_of_two = 4;
4601
4602 /* Apply the required alignment. */
4ce794b7 4603 s = htab->dynbss;
65f38f15
AM		 4604 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
4605 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 4606 {
65f38f15 4607 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 4608 return FALSE;
5bd4f169
AM		 4609 }
4610
4611 /* Define the symbol as being at this point in the section. */
4612 h->root.u.def.section = s;
4613 h->root.u.def.value = s->_raw_size;
4614
4615 /* Increment the section size to make room for the symbol. */
4616 s->_raw_size += h->size;
4617
b34976b6 4618 return TRUE;
5bd4f169
AM		 4619}
4620
e86ce104
AM		 4621/* If given a function descriptor symbol, hide both the function code
4622 sym and the descriptor. */
4623static void
4ce794b7
AM		 4624ppc64_elf_hide_symbol (struct bfd_link_info *info,
4625 struct elf_link_hash_entry *h,
4626 bfd_boolean force_local)
e86ce104
AM		 4627{
4628 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4629
4630 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
4631 {
721956f4 4632 struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh;
e86ce104 4633
721956f4 4634 if (fh == NULL)
d1329ca3
AM		 4635 {
4636 const char *p, *q;
4637 struct ppc_link_hash_table *htab;
4638 char save;
4639
4640 /* We aren't supposed to use alloca in BFD because on
4641 systems which do not have alloca the version in libiberty
4642 calls xmalloc, which might cause the program to crash
4643 when it runs out of memory. This function doesn't have a
4644 return status, so there's no way to gracefully return an
4645 error. So cheat. We know that string[-1] can be safely
4646 dereferenced; It's either a string in an ELF string
4647 table, or allocated in an objalloc structure. */
4648
4649 p = h->root.root.string - 1;
4650 save = *p;
4651 *(char *) p = '.';
4652 htab = ppc_hash_table (info);
b34976b6 4653 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 4654 *(char *) p = save;
4655
4656 /* Unfortunately, if it so happens that the string we were
4657 looking for was allocated immediately before this string,
4658 then we overwrote the string terminator. That's the only
4659 reason the lookup should fail. */
4660 if (fh == NULL)
4661 {
4662 q = h->root.root.string + strlen (h->root.root.string);
4663 while (q >= h->root.root.string && *q == *p)
4664 --q, --p;
4665 if (q < h->root.root.string && *p == '.')
b34976b6 4666 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM		 4667 }
4668 if (fh != NULL)
4669 {
4670 ((struct ppc_link_hash_entry *) h)->oh = fh;
4671 ((struct ppc_link_hash_entry *) fh)->oh = h;
4672 }
4673 }
e86ce104
AM		 4674 if (fh != NULL)
4675 _bfd_elf_link_hash_hide_symbol (info, fh, force_local);
4676 }
4677}
4678
411e1bfb 4679static bfd_boolean
4ce794b7
AM		 4680get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp,
4681 asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp,
4682 unsigned long r_symndx, bfd *ibfd)
411e1bfb
AM		 4683{
4684 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4685
4686 if (r_symndx >= symtab_hdr->sh_info)
4687 {
4688 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4689 struct elf_link_hash_entry *h;
4690
4691 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4692 while (h->root.type == bfd_link_hash_indirect
4693 || h->root.type == bfd_link_hash_warning)
4694 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4695
4696 if (hp != NULL)
4697 *hp = h;
4698
4699 if (symp != NULL)
4700 *symp = NULL;
4701
4702 if (symsecp != NULL)
4703 {
4704 asection *symsec = NULL;
4705 if (h->root.type == bfd_link_hash_defined
4706 || h->root.type == bfd_link_hash_defweak)
4707 symsec = h->root.u.def.section;
4708 *symsecp = symsec;
4709 }
4710
e7b938ca 4711 if (tls_maskp != NULL)
411e1bfb
AM		 4712 {
4713 struct ppc_link_hash_entry *eh;
4714
4715 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4716 *tls_maskp = &eh->tls_mask;
411e1bfb
AM		 4717 }
4718 }
4719 else
4720 {
4721 Elf_Internal_Sym *sym;
4722 Elf_Internal_Sym *locsyms = *locsymsp;
4723
4724 if (locsyms == NULL)
4725 {
4726 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4727 if (locsyms == NULL)
4728 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4729 symtab_hdr->sh_info,
4730 0, NULL, NULL, NULL);
4731 if (locsyms == NULL)
4732 return FALSE;
4733 *locsymsp = locsyms;
4734 }
4735 sym = locsyms + r_symndx;
4736
4737 if (hp != NULL)
4738 *hp = NULL;
4739
4740 if (symp != NULL)
4741 *symp = sym;
4742
4743 if (symsecp != NULL)
4744 {
4745 asection *symsec = NULL;
4746 if ((sym->st_shndx != SHN_UNDEF
4747 && sym->st_shndx < SHN_LORESERVE)
4748 || sym->st_shndx > SHN_HIRESERVE)
4749 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
4750 *symsecp = symsec;
4751 }
4752
e7b938ca 4753 if (tls_maskp != NULL)
411e1bfb
AM		 4754 {
4755 struct got_entry **lgot_ents;
e7b938ca 4756 char *tls_mask;
411e1bfb 4757
e7b938ca 4758 tls_mask = NULL;
411e1bfb
AM		 4759 lgot_ents = elf_local_got_ents (ibfd);
4760 if (lgot_ents != NULL)
4761 {
e7b938ca
AM		 4762 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
4763 tls_mask = &lgot_masks[r_symndx];
411e1bfb 4764 }
e7b938ca 4765 *tls_maskp = tls_mask;
411e1bfb
AM		 4766 }
4767 }
4768 return TRUE;
4769}
4770
e7b938ca 4771/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 4772 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 4773 type suitable for optimization, and 1 otherwise. */
951fd09b
AM		 4774
4775static int
4ce794b7
AM		 4776get_tls_mask (char **tls_maskp, Elf_Internal_Sym **locsymsp,
4777 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM		 4778{
4779 unsigned long r_symndx;
951fd09b 4780 unsigned int next_r;
411e1bfb
AM		 4781 struct elf_link_hash_entry *h;
4782 Elf_Internal_Sym *sym;
4783 asection *sec;
4784 bfd_vma off;
4785
4786 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 4787 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 4788 return 0;
411e1bfb 4789
e7b938ca 4790 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM		 4791 || sec == NULL
4792 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 4793 return 1;
411e1bfb
AM		 4794
4795 /* Look inside a TOC section too. */
4796 if (h != NULL)
4797 {
4798 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4799 off = h->root.u.def.value;
4800 }
4801 else
4802 off = sym->st_value;
4803 off += rel->r_addend;
4804 BFD_ASSERT (off % 8 == 0);
4805 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 4806 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 4807 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b
AM		 4808 return 0;
4809 if (h == NULL
4810 || h->root.type == bfd_link_hash_defined
4811 || h->root.type == bfd_link_hash_defweak)
4812 {
4813 if (next_r == (unsigned) -1)
4814 return 2;
4815 if (next_r == (unsigned) -2
4816 && (h == NULL
4817 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
4818 return 3;
4819 }
4820 return 1;
411e1bfb
AM		 4821}
4822
b34976b6 4823bfd_boolean
4ce794b7 4824ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info)
1e2f5b6e
AM		 4825{
4826 bfd *ibfd;
1e2f5b6e 4827
411e1bfb 4828 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM		 4829 {
4830 asection *sec;
4831 Elf_Internal_Rela *relstart, *rel, *relend;
4832 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 4833 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM		 4834 struct elf_link_hash_entry **sym_hashes;
4835 bfd_vma offset;
d6fe2dc1 4836 bfd_size_type amt;
1e2f5b6e 4837 long *adjust;
b34976b6 4838 bfd_boolean need_edit;
1e2f5b6e
AM		 4839
4840 sec = bfd_get_section_by_name (ibfd, ".opd");
4841 if (sec == NULL)
4842 continue;
4843
d6fe2dc1 4844 amt = sec->_raw_size * sizeof (long) / 24;
f0abc2a1 4845 adjust = ppc64_elf_section_data (sec)->opd.adjust;
d6fe2dc1
AM		 4846 if (adjust == NULL)
4847 {
4848 /* Must be a ld -r link. ie. check_relocs hasn't been
4849 called. */
4ce794b7 4850 adjust = bfd_zalloc (obfd, amt);
f0abc2a1 4851 ppc64_elf_section_data (sec)->opd.adjust = adjust;
d6fe2dc1 4852 }
4ce794b7 4853 memset (adjust, 0, amt);
1e2f5b6e
AM		 4854
4855 if (sec->output_section == bfd_abs_section_ptr)
4856 continue;
4857
4858 /* Look through the section relocs. */
4859 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
4860 continue;
4861
6cdc0ccc 4862 local_syms = NULL;
1e2f5b6e
AM		 4863 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4864 sym_hashes = elf_sym_hashes (ibfd);
4865
4866 /* Read the relocations. */
4ce794b7 4867 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 4868 info->keep_memory);
1e2f5b6e 4869 if (relstart == NULL)
b34976b6 4870 return FALSE;
1e2f5b6e
AM		 4871
4872 /* First run through the relocs to check they are sane, and to
4873 determine whether we need to edit this opd section. */
b34976b6 4874 need_edit = FALSE;
1e2f5b6e
AM		 4875 offset = 0;
4876 relend = relstart + sec->reloc_count;
4877 for (rel = relstart; rel < relend; rel++)
4878 {
04c9666a 4879 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM		 4880 unsigned long r_symndx;
4881 asection *sym_sec;
4882 struct elf_link_hash_entry *h;
4883 Elf_Internal_Sym *sym;
4884
4885 /* .opd contains a regular array of 24 byte entries. We're
4886 only interested in the reloc pointing to a function entry
4887 point. */
4ce794b7 4888 r_type = ELF64_R_TYPE (rel->r_info);
1e2f5b6e
AM		 4889 if (r_type == R_PPC64_TOC)
4890 continue;
4891
4892 if (r_type != R_PPC64_ADDR64)
4893 {
4894 (*_bfd_error_handler)
4895 (_("%s: unexpected reloc type %u in .opd section"),
4896 bfd_archive_filename (ibfd), r_type);
b34976b6 4897 need_edit = FALSE;
1e2f5b6e
AM		 4898 break;
4899 }
4900
4901 if (rel + 1 >= relend)
4902 continue;
4ce794b7 4903 r_type = ELF64_R_TYPE ((rel + 1)->r_info);
1e2f5b6e
AM		 4904 if (r_type != R_PPC64_TOC)
4905 continue;
4906
4907 if (rel->r_offset != offset)
4908 {
4909 /* If someone messes with .opd alignment then after a
4910 "ld -r" we might have padding in the middle of .opd.
4911 Also, there's nothing to prevent someone putting
4912 something silly in .opd with the assembler. No .opd
b34976b6 4913 optimization for them! */
1e2f5b6e
AM		 4914 (*_bfd_error_handler)
4915 (_("%s: .opd is not a regular array of opd entries"),
4916 bfd_archive_filename (ibfd));
b34976b6 4917 need_edit = FALSE;
1e2f5b6e
AM		 4918 break;
4919 }
4920
4921 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 4922 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
4923 r_symndx, ibfd))
4924 goto error_free_rel;
1e2f5b6e
AM		 4925
4926 if (sym_sec == NULL || sym_sec->owner == NULL)
4927 {
411e1bfb
AM		 4928 const char *sym_name;
4929 if (h != NULL)
4930 sym_name = h->root.root.string;
4931 else
4932 sym_name = bfd_elf_local_sym_name (ibfd, sym);
4933
1e2f5b6e
AM		 4934 (*_bfd_error_handler)
4935 (_("%s: undefined sym `%s' in .opd section"),
4936 bfd_archive_filename (ibfd),
411e1bfb 4937 sym_name);
b34976b6 4938 need_edit = FALSE;
1e2f5b6e
AM		 4939 break;
4940 }
4941
51020317
AM		 4942 /* opd entries are always for functions defined in the
4943 current input bfd. If the symbol isn't defined in the
4944 input bfd, then we won't be using the function in this
4945 bfd; It must be defined in a linkonce section in another
4946 bfd, or is weak. It's also possible that we are
4947 discarding the function due to a linker script /DISCARD/,
4948 which we test for via the output_section. */
4949 if (sym_sec->owner != ibfd
4950 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 4951 need_edit = TRUE;
1e2f5b6e
AM		 4952
4953 offset += 24;
4954 }
4955
4956 if (need_edit)
4957 {
4958 Elf_Internal_Rela *write_rel;
4959 bfd_byte *rptr, *wptr;
b34976b6 4960 bfd_boolean skip;
1e2f5b6e
AM		 4961
4962 /* This seems a waste of time as input .opd sections are all
4963 zeros as generated by gcc, but I suppose there's no reason
4964 this will always be so. We might start putting something in
4965 the third word of .opd entries. */
4966 if ((sec->flags & SEC_IN_MEMORY) == 0)
4967 {
4968 bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size);
6cdc0ccc 4969 if (loc == NULL
4ce794b7 4970 || !bfd_get_section_contents (ibfd, sec, loc, 0,
6cdc0ccc
AM		 4971 sec->_raw_size))
4972 {
4973 if (local_syms != NULL
4974 && symtab_hdr->contents != (unsigned char *) local_syms)
4975 free (local_syms);
4976 error_free_rel:
4977 if (elf_section_data (sec)->relocs != relstart)
4978 free (relstart);
b34976b6 4979 return FALSE;
6cdc0ccc 4980 }
1e2f5b6e
AM		 4981 sec->contents = loc;
4982 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
4983 }
4984
4985 elf_section_data (sec)->relocs = relstart;
4986
4987 wptr = sec->contents;
4988 rptr = sec->contents;
4989 write_rel = relstart;
b34976b6 4990 skip = FALSE;
1e2f5b6e
AM		 4991 offset = 0;
4992 for (rel = relstart; rel < relend; rel++)
4993 {
4994 if (rel->r_offset == offset)
4995 {
4996 unsigned long r_symndx;
4997 asection *sym_sec;
4998 struct elf_link_hash_entry *h;
4999 Elf_Internal_Sym *sym;
5000
5001 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM		 5002 get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
5003 r_symndx, ibfd);
1e2f5b6e 5004
51020317
AM		 5005 skip = (sym_sec->owner != ibfd
5006 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM		 5007 if (skip)
5008 {
0be617ce 5009 if (h != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM		 5010 {
5011 /* Arrange for the function descriptor sym
5012 to be dropped. */
d6fe2dc1 5013 struct ppc_link_hash_entry *fdh;
a4aa0fb7
AM		 5014 struct ppc_link_hash_entry *fh;
5015
5016 fh = (struct ppc_link_hash_entry *) h;
d6fe2dc1
AM		 5017 fdh = (struct ppc_link_hash_entry *) fh->oh;
5018 if (fdh == NULL)
5019 {
5020 const char *fd_name;
5021 struct ppc_link_hash_table *htab;
5022
5023 fd_name = h->root.root.string + 1;
5024 htab = ppc_hash_table (info);
5025 fdh = (struct ppc_link_hash_entry *)
5026 elf_link_hash_lookup (&htab->elf, fd_name,
b34976b6 5027 FALSE, FALSE, FALSE);
d6fe2dc1
AM		 5028 fdh->is_func_descriptor = 1;
5029 fdh->oh = &fh->elf;
5030 fh->is_func = 1;
5031 fh->oh = &fdh->elf;
5032 }
5033
5034 fdh->elf.root.u.def.value = 0;
5035 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7
AM		 5036 }
5037 }
5038 else
1e2f5b6e
AM		 5039 {
5040 /* We'll be keeping this opd entry. */
5041
5042 if (h != NULL)
5043 {
5044 /* Redefine the function descriptor symbol
5045 to this location in the opd section.
5046 We've checked above that opd relocs are
5047 ordered. */
d6fe2dc1 5048 struct ppc_link_hash_entry *fdh;
1e2f5b6e
AM		 5049 struct ppc_link_hash_entry *fh;
5050
5051 fh = (struct ppc_link_hash_entry *) h;
d6fe2dc1
AM		 5052 fdh = (struct ppc_link_hash_entry *) fh->oh;
5053 if (fdh == NULL)
5054 {
5055 const char *fd_name;
5056 struct ppc_link_hash_table *htab;
5057
5058 fd_name = h->root.root.string + 1;
5059 htab = ppc_hash_table (info);
5060 fdh = (struct ppc_link_hash_entry *)
5061 elf_link_hash_lookup (&htab->elf, fd_name,
b34976b6 5062 FALSE, FALSE, FALSE);
d6fe2dc1
AM		 5063 fdh->is_func_descriptor = 1;
5064 fdh->oh = &fh->elf;
5065 fh->is_func = 1;
5066 fh->oh = &fdh->elf;
5067 }
5068
5069 fdh->elf.root.u.def.value = wptr - sec->contents;
1e2f5b6e
AM		 5070 }
5071 else
5072 {
6cdc0ccc
AM		 5073 /* Local syms are a bit tricky. We could
5074 tweak them as they can be cached, but
5075 we'd need to look through the local syms
5076 for the function descriptor sym which we
5077 don't have at the moment. So keep an
b34976b6 5078 array of adjustments. */
7f6a7663 5079 adjust[rel->r_offset / 24] = wptr - rptr;
1e2f5b6e
AM		 5080 }
5081
5082 if (wptr != rptr)
5083 memcpy (wptr, rptr, 24);
5084 wptr += 24;
5085 }
5086 rptr += 24;
5087 offset += 24;
5088 }
5089
5090 /* We need to adjust any reloc offsets to point to the
5091 new opd entries. While we're at it, we may as well
5092 remove redundant relocs. */
5093 if (!skip)
5094 {
5095 rel->r_offset += wptr - rptr;
5096 if (write_rel != rel)
5097 memcpy (write_rel, rel, sizeof (*rel));
5098 ++write_rel;
5099 }
5100 }
5101
5102 sec->_cooked_size = wptr - sec->contents;
5103 sec->reloc_count = write_rel - relstart;
cdcf6e38
AM		 5104 /* Fudge the size too, as this is used later in
5105 elf_bfd_final_link if we are emitting relocs. */
5106 elf_section_data (sec)->rel_hdr.sh_size
5107 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
5108 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
1e2f5b6e 5109 }
6cdc0ccc 5110 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 5111 free (relstart);
6cdc0ccc 5112
411e1bfb
AM		 5113 if (local_syms != NULL
5114 && symtab_hdr->contents != (unsigned char *) local_syms)
5115 {
5116 if (!info->keep_memory)
5117 free (local_syms);
5118 else
5119 symtab_hdr->contents = (unsigned char *) local_syms;
5120 }
5121 }
5122
5123 return TRUE;
5124}
5125
951fd09b 5126/* Set htab->tls_sec. */
411e1bfb
AM		 5127
5128bfd_boolean
4ce794b7 5129ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb
AM		 5130{
5131 asection *tls;
411e1bfb
AM		 5132 struct ppc_link_hash_table *htab;
5133
411e1bfb
AM		 5134 for (tls = obfd->sections; tls != NULL; tls = tls->next)
5135 if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD))
5136 == (SEC_THREAD_LOCAL | SEC_LOAD))
5137 break;
411e1bfb
AM		 5138
5139 htab = ppc_hash_table (info);
5140 htab->tls_sec = tls;
a48ebf4d
AM		 5141
5142 if (htab->tls_get_addr != NULL)
5143 {
5144 struct elf_link_hash_entry *h = htab->tls_get_addr;
5145
5146 while (h->root.type == bfd_link_hash_indirect
5147 || h->root.type == bfd_link_hash_warning)
5148 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5149
5150 htab->tls_get_addr = h;
5151 }
5152
951fd09b
AM		 5153 return tls != NULL;
5154}
411e1bfb 5155
951fd09b
AM		 5156/* Run through all the TLS relocs looking for optimization
5157 opportunities. The linker has been hacked (see ppc64elf.em) to do
5158 a preliminary section layout so that we know the TLS segment
5159 offsets. We can't optimize earlier because some optimizations need
5160 to know the tp offset, and we need to optimize before allocating
5161 dynamic relocations. */
5162
5163bfd_boolean
4ce794b7 5164ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM		 5165{
5166 bfd *ibfd;
5167 asection *sec;
5168 struct ppc_link_hash_table *htab;
5169
1049f94e 5170 if (info->relocatable || info->shared)
411e1bfb
AM		 5171 return TRUE;
5172
951fd09b 5173 htab = ppc_hash_table (info);
411e1bfb
AM		 5174 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5175 {
5176 Elf_Internal_Sym *locsyms = NULL;
5177
5178 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5179 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5180 {
5181 Elf_Internal_Rela *relstart, *rel, *relend;
5182 int expecting_tls_get_addr;
5183
5184 /* Read the relocations. */
4ce794b7 5185 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 5186 info->keep_memory);
411e1bfb
AM		 5187 if (relstart == NULL)
5188 return FALSE;
5189
5190 expecting_tls_get_addr = 0;
5191 relend = relstart + sec->reloc_count;
5192 for (rel = relstart; rel < relend; rel++)
5193 {
5194 enum elf_ppc64_reloc_type r_type;
5195 unsigned long r_symndx;
5196 struct elf_link_hash_entry *h;
5197 Elf_Internal_Sym *sym;
5198 asection *sym_sec;
e7b938ca
AM		 5199 char *tls_mask;
5200 char tls_set, tls_clear, tls_type = 0;
411e1bfb 5201 bfd_vma value;
951fd09b 5202 bfd_boolean ok_tprel, is_local;
411e1bfb
AM		 5203
5204 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5205 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM		 5206 r_symndx, ibfd))
5207 {
5208 err_free_rel:
5209 if (elf_section_data (sec)->relocs != relstart)
5210 free (relstart);
5211 if (locsyms != NULL
5212 && (elf_tdata (ibfd)->symtab_hdr.contents
5213 != (unsigned char *) locsyms))
5214 free (locsyms);
5215 return FALSE;
5216 }
5217
5218 if (h != NULL)
5219 {
5220 if (h->root.type != bfd_link_hash_defined
5221 && h->root.type != bfd_link_hash_defweak)
5222 continue;
5223 value = h->root.u.def.value;
5224 }
5225 else
5226 value = sym->st_value;
951fd09b 5227
411e1bfb 5228 ok_tprel = FALSE;
951fd09b
AM		 5229 is_local = FALSE;
5230 if (h == NULL
5231 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5232 {
951fd09b 5233 is_local = TRUE;
411e1bfb
AM		 5234 value += sym_sec->output_offset;
5235 value += sym_sec->output_section->vma;
5236 value -= htab->tls_sec->vma;
5237 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
5238 < (bfd_vma) 1 << 32);
5239 }
5240
4ce794b7 5241 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM		 5242 switch (r_type)
5243 {
5244 case R_PPC64_GOT_TLSLD16:
5245 case R_PPC64_GOT_TLSLD16_LO:
5246 case R_PPC64_GOT_TLSLD16_HI:
5247 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM		 5248 /* These relocs should never be against a symbol
5249 defined in a shared lib. Leave them alone if
5250 that turns out to be the case. */
e717da7e 5251 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM		 5252 if (!is_local)
5253 continue;
5254
951fd09b
AM		 5255 /* LD -> LE */
5256 tls_set = 0;
5257 tls_clear = TLS_LD;
e7b938ca 5258 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 5259 expecting_tls_get_addr = 1;
5260 break;
5261
5262 case R_PPC64_GOT_TLSGD16:
5263 case R_PPC64_GOT_TLSGD16_LO:
5264 case R_PPC64_GOT_TLSGD16_HI:
5265 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5266 if (ok_tprel)
411e1bfb
AM		 5267 /* GD -> LE */
5268 tls_set = 0;
5269 else
5270 /* GD -> IE */
951fd09b
AM		 5271 tls_set = TLS_TLS | TLS_TPRELGD;
5272 tls_clear = TLS_GD;
e7b938ca 5273 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 5274 expecting_tls_get_addr = 1;
5275 break;
5276
5277 case R_PPC64_GOT_TPREL16_DS:
5278 case R_PPC64_GOT_TPREL16_LO_DS:
5279 case R_PPC64_GOT_TPREL16_HI:
5280 case R_PPC64_GOT_TPREL16_HA:
5281 expecting_tls_get_addr = 0;
5282 if (ok_tprel)
5283 {
5284 /* IE -> LE */
5285 tls_set = 0;
5286 tls_clear = TLS_TPREL;
e7b938ca 5287 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM		 5288 break;
5289 }
5290 else
5291 continue;
5292
5293 case R_PPC64_REL14:
5294 case R_PPC64_REL14_BRTAKEN:
5295 case R_PPC64_REL14_BRNTAKEN:
5296 case R_PPC64_REL24:
5297 if (h != NULL
5298 && h == htab->tls_get_addr)
5299 {
5300 if (!expecting_tls_get_addr
5301 && rel != relstart
5302 && ((ELF64_R_TYPE (rel[-1].r_info)
5303 == R_PPC64_TOC16)
5304 || (ELF64_R_TYPE (rel[-1].r_info)
5305 == R_PPC64_TOC16_LO)))
5306 {
5307 /* Check for toc tls entries. */
5308 char *toc_tls;
951fd09b 5309 int retval;
411e1bfb 5310
e7b938ca 5311 retval = get_tls_mask (&toc_tls, &locsyms,
951fd09b
AM		 5312 rel - 1, ibfd);
5313 if (retval == 0)
411e1bfb
AM		 5314 goto err_free_rel;
5315 if (toc_tls != NULL)
951fd09b 5316 expecting_tls_get_addr = retval > 1;
411e1bfb
AM		 5317 }
5318
5319 if (expecting_tls_get_addr)
5320 {
5321 struct plt_entry *ent;
5322 for (ent = h->plt.plist; ent; ent = ent->next)
5323 if (ent->addend == 0)
5324 {
5325 if (ent->plt.refcount > 0)
5326 ent->plt.refcount -= 1;
5327 break;
5328 }
5329 }
5330 }
5331 expecting_tls_get_addr = 0;
5332 continue;
5333
5334 case R_PPC64_TPREL64:
5335 expecting_tls_get_addr = 0;
5336 if (ok_tprel)
5337 {
5338 /* IE -> LE */
5339 tls_set = TLS_EXPLICIT;
5340 tls_clear = TLS_TPREL;
5341 break;
5342 }
5343 else
5344 continue;
5345
5346 case R_PPC64_DTPMOD64:
5347 expecting_tls_get_addr = 0;
951fd09b
AM		 5348 if (rel + 1 < relend
5349 && (rel[1].r_info
5350 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
5351 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 5352 {
951fd09b 5353 if (ok_tprel)
411e1bfb 5354 /* GD -> LE */
951fd09b 5355 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM		 5356 else
5357 /* GD -> IE */
951fd09b
AM		 5358 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
5359 tls_clear = TLS_GD;
411e1bfb
AM		 5360 }
5361 else
5362 {
951fd09b
AM		 5363 if (!is_local)
5364 continue;
5365
5366 /* LD -> LE */
5367 tls_set = TLS_EXPLICIT;
5368 tls_clear = TLS_LD;
411e1bfb
AM		 5369 }
5370 break;
5371
5372 default:
5373 expecting_tls_get_addr = 0;
5374 continue;
5375 }
5376
5377 if ((tls_set & TLS_EXPLICIT) == 0)
5378 {
5379 struct got_entry *ent;
5380
5381 /* Adjust got entry for this reloc. */
5382 if (h != NULL)
5383 ent = h->got.glist;
5384 else
5385 ent = elf_local_got_ents (ibfd)[r_symndx];
5386
5387 for (; ent != NULL; ent = ent->next)
5388 if (ent->addend == rel->r_addend
e717da7e 5389 && ent->owner == ibfd
e7b938ca 5390 && ent->tls_type == tls_type)
411e1bfb
AM		 5391 break;
5392 if (ent == NULL)
5393 abort ();
5394
5395 if (tls_set == 0)
5396 {
5397 /* We managed to get rid of a got entry. */
5398 if (ent->got.refcount > 0)
5399 ent->got.refcount -= 1;
5400 }
411e1bfb
AM		 5401 }
5402 else if (h != NULL)
5403 {
5404 struct ppc_link_hash_entry * eh;
5405 struct ppc_dyn_relocs **pp;
5406 struct ppc_dyn_relocs *p;
5407
5408 /* Adjust dynamic relocs. */
5409 eh = (struct ppc_link_hash_entry *) h;
5410 for (pp = &eh->dyn_relocs;
5411 (p = *pp) != NULL;
5412 pp = &p->next)
5413 if (p->sec == sec)
5414 {
5415 /* If we got rid of a DTPMOD/DTPREL reloc
5416 pair then we'll lose one or two dyn
5417 relocs. */
951fd09b 5418 if (tls_set == (TLS_EXPLICIT | TLS_GD))
411e1bfb 5419 p->count -= 1;
951fd09b 5420 p->count -= 1;
411e1bfb
AM		 5421 if (p->count == 0)
5422 *pp = p->next;
5423 break;
5424 }
5425 }
5426
e7b938ca
AM		 5427 *tls_mask |= tls_set;
5428 *tls_mask &= ~tls_clear;
411e1bfb
AM		 5429 }
5430
5431 if (elf_section_data (sec)->relocs != relstart)
5432 free (relstart);
5433 }
5434
5435 if (locsyms != NULL
5436 && (elf_tdata (ibfd)->symtab_hdr.contents
5437 != (unsigned char *) locsyms))
6cdc0ccc
AM		 5438 {
5439 if (!info->keep_memory)
411e1bfb 5440 free (locsyms);
6cdc0ccc 5441 else
411e1bfb 5442 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 5443 }
1e2f5b6e 5444 }
b34976b6 5445 return TRUE;
1e2f5b6e 5446}
b34976b6 5447
65f38f15
AM		 5448/* This is the condition under which ppc64_elf_finish_dynamic_symbol
5449 will be called from elflink.h. If elflink.h doesn't call our
5450 finish_dynamic_symbol routine, we'll need to do something about
5451 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
f4656909 5452#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
65f38f15 5453 ((DYN) \
f4656909 5454 && ((SHARED) \
65f38f15
AM		 5455 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5456 && ((H)->dynindx != -1 \
5457 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5bd4f169 5458
65f38f15
AM		 5459/* Allocate space in .plt, .got and associated reloc sections for
5460 dynamic relocs. */
5bd4f169 5461
b34976b6 5462static bfd_boolean
4ce794b7 5463allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5464{
65f38f15
AM		 5465 struct bfd_link_info *info;
5466 struct ppc_link_hash_table *htab;
5bd4f169 5467 asection *s;
65f38f15
AM		 5468 struct ppc_link_hash_entry *eh;
5469 struct ppc_dyn_relocs *p;
411e1bfb 5470 struct got_entry *gent;
5bd4f169 5471
e92d460e 5472 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5473 return TRUE;
5bd4f169 5474
e92d460e
AM		 5475 if (h->root.type == bfd_link_hash_warning)
5476 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5477
65f38f15
AM		 5478 info = (struct bfd_link_info *) inf;
5479 htab = ppc_hash_table (info);
5bd4f169 5480
65f38f15 5481 if (htab->elf.dynamic_sections_created
411e1bfb 5482 && h->dynindx != -1
9c7a29a3 5483 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 5484 {
411e1bfb
AM		 5485 struct plt_entry *pent;
5486 bfd_boolean doneone = FALSE;
5487 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
5488 if (pent->plt.refcount > 0)
5489 {
5490 BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor);
5491
5492 /* If this is the first .plt entry, make room for the special
5493 first entry. */
4ce794b7 5494 s = htab->plt;
411e1bfb
AM		 5495 if (s->_raw_size == 0)
5496 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
5497
5498 pent->plt.offset = s->_raw_size;
5499
5500 /* Make room for this entry. */
5501 s->_raw_size += PLT_ENTRY_SIZE;
5502
5503 /* Make room for the .glink code. */
4ce794b7 5504 s = htab->glink;
411e1bfb
AM		 5505 if (s->_raw_size == 0)
5506 s->_raw_size += GLINK_CALL_STUB_SIZE;
5507 /* We need bigger stubs past index 32767. */
5508 if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
5509 s->_raw_size += 4;
5510 s->_raw_size += 2*4;
5511
5512 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 5513 s = htab->relplt;
411e1bfb
AM		 5514 s->_raw_size += sizeof (Elf64_External_Rela);
5515 doneone = TRUE;
5516 }
5517 else
5518 pent->plt.offset = (bfd_vma) -1;
5519 if (!doneone)
65f38f15 5520 {
411e1bfb 5521 h->plt.plist = NULL;
65f38f15
AM		 5522 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5523 }
5524 }
5525 else
5526 {
411e1bfb 5527 h->plt.plist = NULL;
65f38f15
AM		 5528 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5529 }
5530
951fd09b
AM		 5531 eh = (struct ppc_link_hash_entry *) h;
5532 /* Run through the TLS GD got entries first if we're changing them
5533 to TPREL. */
e7b938ca 5534 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM		 5535 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5536 if (gent->got.refcount > 0
5537 && (gent->tls_type & TLS_GD) != 0)
5538 {
5539 /* This was a GD entry that has been converted to TPREL. If
5540 there happens to be a TPREL entry we can use that one. */
5541 struct got_entry *ent;
5542 for (ent = h->got.glist; ent != NULL; ent = ent->next)
5543 if (ent->got.refcount > 0
5544 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM		 5545 && ent->addend == gent->addend
5546 && ent->owner == gent->owner)
951fd09b
AM		 5547 {
5548 gent->got.refcount = 0;
5549 break;
5550 }
5551
5552 /* If not, then we'll be using our own TPREL entry. */
5553 if (gent->got.refcount != 0)
5554 gent->tls_type = TLS_TLS | TLS_TPREL;
5555 }
5556
411e1bfb
AM		 5557 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5558 if (gent->got.refcount > 0)
5559 {
951fd09b
AM		 5560 bfd_boolean dyn;
5561
411e1bfb 5562 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM		 5563 Undefined weak syms won't yet be marked as dynamic,
5564 nor will all TLS symbols. */
411e1bfb
AM		 5565 if (h->dynindx == -1
5566 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5567 {
5568 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5569 return FALSE;
5570 }
65f38f15 5571
d881513a
AM		 5572 if ((gent->tls_type & TLS_LD) != 0
5573 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5574 {
e717da7e 5575 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 5576 continue;
411e1bfb 5577 }
951fd09b 5578
e717da7e 5579 s = ppc64_elf_tdata (gent->owner)->got;
951fd09b 5580 gent->got.offset = s->_raw_size;
d881513a
AM		 5581 s->_raw_size
5582 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 5583 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM		 5584 if ((info->shared
5585 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5586 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5587 || h->root.type != bfd_link_hash_undefweak))
e717da7e 5588 ppc64_elf_tdata (gent->owner)->relgot->_raw_size
e7b938ca 5589 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM		 5590 ? 2 * sizeof (Elf64_External_Rela)
5591 : sizeof (Elf64_External_Rela));
411e1bfb
AM		 5592 }
5593 else
5594 gent->got.offset = (bfd_vma) -1;
65f38f15 5595
65f38f15 5596 if (eh->dyn_relocs == NULL)
b34976b6 5597 return TRUE;
65f38f15
AM		 5598
5599 /* In the shared -Bsymbolic case, discard space allocated for
5600 dynamic pc-relative relocs against symbols which turn out to be
5601 defined in regular objects. For the normal shared case, discard
5602 space for relocs that have become local due to symbol visibility
5603 changes. */
5604
5605 if (info->shared)
5606 {
9c7a29a3
AM		 5607 /* Relocs that use pc_count are those that appear on a call insn,
5608 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
5609 generated via assembly. We want calls to protected symbols to
5610 resolve directly to the function rather than going via the plt.
5611 If people want function pointer comparisons to work as expected
5612 then they should avoid writing weird assembly. */
09695f56 5613 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM		 5614 {
5615 struct ppc_dyn_relocs **pp;
5616
5617 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 5618 {
65f38f15
AM		 5619 p->count -= p->pc_count;
5620 p->pc_count = 0;
5621 if (p->count == 0)
5622 *pp = p->next;
5623 else
5624 pp = &p->next;
5bd4f169 5625 }
65f38f15 5626 }
4e795f50
AM		 5627
5628 /* Also discard relocs on undefined weak syms with non-default
5629 visibility. */
5630 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5631 && h->root.type == bfd_link_hash_undefweak)
5632 eh->dyn_relocs = NULL;
65f38f15 5633 }
f4656909 5634 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM		 5635 {
5636 /* For the non-shared case, discard space for relocs against
5637 symbols which turn out to need copy relocs or are not
5638 dynamic. */
5639
5640 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 5641 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5642 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
65f38f15
AM		 5643 {
5644 /* Make sure this symbol is output as a dynamic symbol.
5645 Undefined weak syms won't yet be marked as dynamic. */
5646 if (h->dynindx == -1
5647 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5648 {
ec338859 5649 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
b34976b6 5650 return FALSE;
65f38f15
AM		 5651 }
5652
5653 /* If that succeeded, we know we'll be keeping all the
5654 relocs. */
5655 if (h->dynindx != -1)
5656 goto keep;
5657 }
5658
5659 eh->dyn_relocs = NULL;
5660
ec338859 5661 keep: ;
65f38f15
AM		 5662 }
5663
5664 /* Finally, allocate space. */
5665 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5666 {
5667 asection *sreloc = elf_section_data (p->sec)->sreloc;
5668 sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
5669 }
5670
b34976b6 5671 return TRUE;
65f38f15
AM		 5672}
5673
5674/* Find any dynamic relocs that apply to read-only sections. */
5675
b34976b6 5676static bfd_boolean
4ce794b7 5677readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM		 5678{
5679 struct ppc_link_hash_entry *eh;
5680 struct ppc_dyn_relocs *p;
5681
e92d460e
AM		 5682 if (h->root.type == bfd_link_hash_warning)
5683 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5684
65f38f15
AM		 5685 eh = (struct ppc_link_hash_entry *) h;
5686 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5687 {
5688 asection *s = p->sec->output_section;
5689
5690 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5691 {
4ce794b7 5692 struct bfd_link_info *info = inf;
65f38f15
AM		 5693
5694 info->flags |= DF_TEXTREL;
5695
5696 /* Not an error, just cut short the traversal. */
b34976b6 5697 return FALSE;
65f38f15
AM		 5698 }
5699 }
b34976b6 5700 return TRUE;
65f38f15
AM		 5701}
5702
5703/* Set the sizes of the dynamic sections. */
5704
b34976b6 5705static bfd_boolean
4ce794b7
AM		 5706ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5707 struct bfd_link_info *info)
65f38f15
AM		 5708{
5709 struct ppc_link_hash_table *htab;
5710 bfd *dynobj;
5711 asection *s;
b34976b6 5712 bfd_boolean relocs;
65f38f15
AM		 5713 bfd *ibfd;
5714
5715 htab = ppc_hash_table (info);
5716 dynobj = htab->elf.dynobj;
5717 if (dynobj == NULL)
5718 abort ();
5719
5720 if (htab->elf.dynamic_sections_created)
5721 {
5722 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 5723 if (info->executable)
65f38f15
AM		 5724 {
5725 s = bfd_get_section_by_name (dynobj, ".interp");
5726 if (s == NULL)
5727 abort ();
5728 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
5729 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5730 }
5731 }
5732
5733 /* Set up .got offsets for local syms, and space for local dynamic
5734 relocs. */
5735 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5736 {
411e1bfb
AM		 5737 struct got_entry **lgot_ents;
5738 struct got_entry **end_lgot_ents;
e7b938ca 5739 char *lgot_masks;
65f38f15
AM		 5740 bfd_size_type locsymcount;
5741 Elf_Internal_Shdr *symtab_hdr;
5742 asection *srel;
5743
5744 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
5745 continue;
5746
e717da7e
AM		 5747 if (ppc64_tlsld_got (ibfd)->refcount > 0)
5748 {
5749 s = ppc64_elf_tdata (ibfd)->got;
5750 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
5751 s->_raw_size += 16;
5752 if (info->shared)
5753 {
5754 srel = ppc64_elf_tdata (ibfd)->relgot;
5755 srel->_raw_size += sizeof (Elf64_External_Rela);
5756 }
5757 }
5758 else
5759 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
5760
65f38f15
AM		 5761 for (s = ibfd->sections; s != NULL; s = s->next)
5762 {
ec338859 5763 struct ppc_dyn_relocs *p;
65f38f15 5764
ec338859
AM		 5765 for (p = *((struct ppc_dyn_relocs **)
5766 &elf_section_data (s)->local_dynrel);
5767 p != NULL;
5768 p = p->next)
65f38f15 5769 {
ec338859
AM		 5770 if (!bfd_is_abs_section (p->sec)
5771 && bfd_is_abs_section (p->sec->output_section))
5772 {
5773 /* Input section has been discarded, either because
5774 it is a copy of a linkonce section or due to
5775 linker script /DISCARD/, so we'll be discarding
5776 the relocs too. */
5777 }
248866a8 5778 else if (p->count != 0)
ec338859
AM		 5779 {
5780 srel = elf_section_data (p->sec)->sreloc;
5781 srel->_raw_size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM		 5782 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
5783 info->flags |= DF_TEXTREL;
ec338859 5784 }
65f38f15
AM		 5785 }
5786 }
5787
411e1bfb
AM		 5788 lgot_ents = elf_local_got_ents (ibfd);
5789 if (!lgot_ents)
65f38f15
AM		 5790 continue;
5791
5792 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5793 locsymcount = symtab_hdr->sh_info;
411e1bfb 5794 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 5795 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM		 5796 s = ppc64_elf_tdata (ibfd)->got;
5797 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 5798 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 5799 {
411e1bfb
AM		 5800 struct got_entry *ent;
5801
5802 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
5803 if (ent->got.refcount > 0)
5804 {
e7b938ca 5805 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 5806 {
e717da7e 5807 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 5808 {
e717da7e 5809 ppc64_tlsld_got (ibfd)->offset = s->_raw_size;
411e1bfb
AM		 5810 s->_raw_size += 16;
5811 if (info->shared)
5812 srel->_raw_size += sizeof (Elf64_External_Rela);
5813 }
e717da7e 5814 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM		 5815 }
5816 else
5817 {
5818 ent->got.offset = s->_raw_size;
e7b938ca 5819 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb
AM		 5820 {
5821 s->_raw_size += 16;
5822 if (info->shared)
5823 srel->_raw_size += 2 * sizeof (Elf64_External_Rela);
5824 }
5825 else
5826 {
5827 s->_raw_size += 8;
5828 if (info->shared)
5829 srel->_raw_size += sizeof (Elf64_External_Rela);
5830 }
5831 }
5832 }
5833 else
5834 ent->got.offset = (bfd_vma) -1;
65f38f15
AM		 5835 }
5836 }
5837
5838 /* Allocate global sym .plt and .got entries, and space for global
5839 sym dynamic relocs. */
4ce794b7 5840 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM		 5841
5842 /* We now have determined the sizes of the various dynamic sections.
5843 Allocate memory for them. */
b34976b6 5844 relocs = FALSE;
65f38f15
AM		 5845 for (s = dynobj->sections; s != NULL; s = s->next)
5846 {
5847 if ((s->flags & SEC_LINKER_CREATED) == 0)
5848 continue;
5849
411e1bfb
AM		 5850 /* Reset _cooked_size since prelim layout will set it wrongly,
5851 and a non-zero _cooked_size sticks. */
5852 s->_cooked_size = 0;
5853
4ce794b7 5854 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM		 5855 /* These haven't been allocated yet; don't strip. */
5856 continue;
e717da7e
AM		 5857 else if (s == htab->got
5858 || s == htab->plt
4ce794b7 5859 || s == htab->glink)
65f38f15
AM		 5860 {
5861 /* Strip this section if we don't need it; see the
5862 comment below. */
5bd4f169 5863 }
65f38f15 5864 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169
AM		 5865 {
5866 if (s->_raw_size == 0)
5867 {
5868 /* If we don't need this section, strip it from the
5869 output file. This is mostly to handle .rela.bss and
5870 .rela.plt. We must create both sections in
5871 create_dynamic_sections, because they must be created
5872 before the linker maps input sections to output
5873 sections. The linker does that before
5874 adjust_dynamic_symbol is called, and it is that
5875 function which decides whether anything needs to go
5876 into these sections. */
5bd4f169
AM		 5877 }
5878 else
5879 {
4ce794b7 5880 if (s != htab->relplt)
b34976b6 5881 relocs = TRUE;
5bd4f169
AM		 5882
5883 /* We use the reloc_count field as a counter if we need
5884 to copy relocs into the output file. */
5885 s->reloc_count = 0;
5886 }
5887 }
65f38f15 5888 else
5bd4f169
AM		 5889 {
5890 /* It's not one of our sections, so don't allocate space. */
5891 continue;
5892 }
5893
65f38f15 5894 if (s->_raw_size == 0)
5bd4f169
AM		 5895 {
5896 _bfd_strip_section_from_output (info, s);
5897 continue;
5898 }
5899
5f333394
AM		 5900 /* .plt is in the bss section. We don't initialise it. */
5901 if ((s->flags & SEC_LOAD) == 0)
5902 continue;
5903
65f38f15
AM		 5904 /* Allocate memory for the section contents. We use bfd_zalloc
5905 here in case unused entries are not reclaimed before the
5906 section's contents are written out. This should not happen,
411e1bfb
AM		 5907 but this way if it does we get a R_PPC64_NONE reloc in .rela
5908 sections instead of garbage.
5909 We also rely on the section contents being zero when writing
5910 the GOT. */
4ce794b7 5911 s->contents = bfd_zalloc (dynobj, s->_raw_size);
65f38f15 5912 if (s->contents == NULL)
b34976b6 5913 return FALSE;
5bd4f169
AM		 5914 }
5915
e717da7e
AM		 5916 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5917 {
5918 s = ppc64_elf_tdata (ibfd)->got;
5919 if (s != NULL && s != htab->got)
5920 {
5921 s->_cooked_size = 0;
5922 if (s->_raw_size == 0)
5923 _bfd_strip_section_from_output (info, s);
5924 else
5925 {
5926 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5927 if (s->contents == NULL)
5928 return FALSE;
5929 }
5930 }
5931 s = ppc64_elf_tdata (ibfd)->relgot;
5932 if (s != NULL)
5933 {
5934 s->_cooked_size = 0;
5935 if (s->_raw_size == 0)
5936 _bfd_strip_section_from_output (info, s);
5937 else
5938 {
5939 s->contents = bfd_zalloc (ibfd, s->_raw_size);
5940 if (s->contents == NULL)
5941 return FALSE;
5942 relocs = TRUE;
5943 s->reloc_count = 0;
5944 }
5945 }
5946 }
5947
e86ce104 5948 if (htab->elf.dynamic_sections_created)
5bd4f169
AM		 5949 {
5950 /* Add some entries to the .dynamic section. We fill in the
5951 values later, in ppc64_elf_finish_dynamic_sections, but we
5952 must add the entries now so that we get the correct size for
5953 the .dynamic section. The DT_DEBUG entry is filled in by the
5954 dynamic linker and used by the debugger. */
dc810e39 5955#define add_dynamic_entry(TAG, VAL) \
4ce794b7 5956 bfd_elf64_add_dynamic_entry (info, (TAG), (VAL))
dc810e39 5957
36af4a4e 5958 if (info->executable)
5bd4f169 5959 {
dc810e39 5960 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 5961 return FALSE;
5bd4f169
AM		 5962 }
5963
4ce794b7 5964 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5bd4f169 5965 {
dc810e39
AM		 5966 if (!add_dynamic_entry (DT_PLTGOT, 0)
5967 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5968 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM		 5969 || !add_dynamic_entry (DT_JMPREL, 0)
5970 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 5971 return FALSE;
5bd4f169
AM		 5972 }
5973
19397422
AM		 5974 if (NO_OPD_RELOCS)
5975 {
5976 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
5977 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 5978 return FALSE;
19397422
AM		 5979 }
5980
5bd4f169
AM		 5981 if (relocs)
5982 {
dc810e39
AM		 5983 if (!add_dynamic_entry (DT_RELA, 0)
5984 || !add_dynamic_entry (DT_RELASZ, 0)
5985 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 5986 return FALSE;
5bd4f169 5987
65f38f15
AM		 5988 /* If any dynamic relocs apply to a read-only section,
5989 then we need a DT_TEXTREL entry. */
248866a8 5990 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 5991 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 5992
65f38f15 5993 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 5994 {
65f38f15 5995 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 5996 return FALSE;
5bd4f169 5997 }
5bd4f169 5998 }
5bd4f169 5999 }
65f38f15 6000#undef add_dynamic_entry
5bd4f169 6001
b34976b6 6002 return TRUE;
5bd4f169
AM		 6003}
6004
721956f4 6005/* Determine the type of stub needed, if any, for a call. */
5bd4f169 6006
4ce794b7
AM		 6007static inline enum ppc_stub_type
6008ppc_type_of_stub (asection *input_sec,
6009 const Elf_Internal_Rela *rel,
6010 struct ppc_link_hash_entry **hash,
6011 bfd_vma destination)
5bd4f169 6012{
721956f4
AM		 6013 struct ppc_link_hash_entry *h = *hash;
6014 bfd_vma location;
6015 bfd_vma branch_offset;
6016 bfd_vma max_branch_offset;
4ce794b7 6017 enum elf_ppc64_reloc_type r_type;
5bd4f169 6018
721956f4
AM		 6019 if (h != NULL)
6020 {
6021 if (h->oh != NULL
721956f4 6022 && h->oh->dynindx != -1)
5bd4f169 6023 {
411e1bfb
AM		 6024 struct plt_entry *ent;
6025 for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next)
6026 if (ent->addend == rel->r_addend
6027 && ent->plt.offset != (bfd_vma) -1)
6028 {
6029 *hash = (struct ppc_link_hash_entry *) h->oh;
6030 return ppc_stub_plt_call;
6031 }
5bd4f169
AM		 6032 }
6033
ad8e1ba5
AM		 6034 if (h->elf.root.type != bfd_link_hash_defined
6035 && h->elf.root.type != bfd_link_hash_defweak)
721956f4 6036 return ppc_stub_none;
5d1634d7 6037 }
5d1634d7 6038
721956f4
AM		 6039 /* Determine where the call point is. */
6040 location = (input_sec->output_offset
6041 + input_sec->output_section->vma
6042 + rel->r_offset);
5d1634d7 6043
721956f4
AM		 6044 branch_offset = destination - location;
6045 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 6046
721956f4
AM		 6047 /* Determine if a long branch stub is needed. */
6048 max_branch_offset = 1 << 25;
4ce794b7 6049 if (r_type != R_PPC64_REL24)
721956f4 6050 max_branch_offset = 1 << 15;
5d1634d7 6051
721956f4
AM		 6052 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
6053 /* We need a stub. Figure out whether a long_branch or plt_branch
6054 is needed later. */
6055 return ppc_stub_long_branch;
5d1634d7 6056
721956f4 6057 return ppc_stub_none;
5d1634d7
AM		 6058}
6059
6060/* Build a .plt call stub. */
6061
4ce794b7
AM		 6062static inline bfd_byte *
6063build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM		 6064{
6065#define PPC_LO(v) ((v) & 0xffff)
6066#define PPC_HI(v) (((v) >> 16) & 0xffff)
6067#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6068
5d1634d7 6069 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 6070 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM		 6071 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6072 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6073 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 6074 offset += 8;
6075 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
6076 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6077 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM		 6078 offset += 8;
6079 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
6080 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6081 bfd_put_32 (obfd, BCTR, p), p += 4;
6082 return p;
6083}
6084
b34976b6 6085static bfd_boolean
4ce794b7 6086ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 6087{
721956f4
AM		 6088 struct ppc_stub_hash_entry *stub_entry;
6089 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM		 6090 struct bfd_link_info *info;
6091 struct ppc_link_hash_table *htab;
721956f4
AM		 6092 asection *stub_sec;
6093 bfd *stub_bfd;
6094 bfd_byte *loc;
6095 bfd_byte *p;
6096 unsigned int indx;
411e1bfb 6097 struct plt_entry *ent;
721956f4
AM		 6098 bfd_vma off;
6099 int size;
5d1634d7 6100
721956f4
AM		 6101 /* Massage our args to the form they really have. */
6102 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 6103 info = in_arg;
5d1634d7 6104
5d1634d7 6105 htab = ppc_hash_table (info);
721956f4 6106 stub_sec = stub_entry->stub_sec;
5d1634d7 6107
721956f4
AM		 6108 /* Make a note of the offset within the stubs for this entry. */
6109 stub_entry->stub_offset = stub_sec->_cooked_size;
6110 loc = stub_sec->contents + stub_entry->stub_offset;
6111
ad8e1ba5
AM		 6112 if (htab->emit_stub_syms)
6113 {
6114 struct elf_link_hash_entry *h;
6115 h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string,
6116 TRUE, FALSE, FALSE);
6117 if (h == NULL)
6118 return FALSE;
6119 h->root.type = bfd_link_hash_defined;
6120 h->root.u.def.section = stub_entry->stub_sec;
6121 h->root.u.def.value = stub_entry->stub_offset;
6122 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
6123 | ELF_LINK_HASH_DEF_REGULAR
6124 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
6125 | ELF_LINK_FORCED_LOCAL);
6126 }
6127
721956f4
AM		 6128 stub_bfd = stub_sec->owner;
6129
4ce794b7 6130 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 6131 switch (stub_entry->stub_type)
5d1634d7 6132 {
721956f4 6133 case ppc_stub_long_branch:
ad8e1ba5 6134 case ppc_stub_long_branch_r2off:
721956f4
AM		 6135 /* Branches are relative. This is where we are going to. */
6136 off = (stub_entry->target_value
6137 + stub_entry->target_section->output_offset
6138 + stub_entry->target_section->output_section->vma);
5d1634d7 6139
721956f4
AM		 6140 /* And this is where we are coming from. */
6141 off -= (stub_entry->stub_offset
6142 + stub_sec->output_offset
6143 + stub_sec->output_section->vma);
e86ce104 6144
ad8e1ba5
AM		 6145 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
6146 size = 4;
6147 else
6148 {
6149 bfd_vma r2off;
6150
6151 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6152 - htab->stub_group[stub_entry->id_sec->id].toc_off);
4ce794b7 6153 bfd_put_32 (stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6154 loc += 4;
4ce794b7 6155 bfd_put_32 (stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6156 loc += 4;
4ce794b7 6157 bfd_put_32 (stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 6158 loc += 4;
6159 off -= 12;
6160 size = 16;
6161 }
4ce794b7 6162 bfd_put_32 (stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5
AM		 6163
6164 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
721956f4 6165 break;
e86ce104 6166
721956f4 6167 case ppc_stub_plt_branch:
ad8e1ba5 6168 case ppc_stub_plt_branch_r2off:
721956f4
AM		 6169 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6170 stub_entry->root.string + 9,
b34976b6 6171 FALSE, FALSE);
721956f4
AM		 6172 if (br_entry == NULL)
6173 {
6174 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
6175 stub_entry->root.string + 9);
b34976b6
AM		 6176 htab->stub_error = TRUE;
6177 return FALSE;
721956f4
AM		 6178 }
6179
6180 off = (stub_entry->target_value
6181 + stub_entry->target_section->output_offset
6182 + stub_entry->target_section->output_section->vma);
6183
4ce794b7
AM		 6184 bfd_put_64 (htab->brlt->owner, off,
6185 htab->brlt->contents + br_entry->offset);
721956f4
AM		 6186
6187 if (info->shared)
6188 {
6189 /* Create a reloc for the branch lookup table entry. */
6190 Elf_Internal_Rela rela;
ad8e1ba5 6191 bfd_byte *rl;
5d1634d7 6192
721956f4 6193 rela.r_offset = (br_entry->offset
4ce794b7
AM		 6194 + htab->brlt->output_offset
6195 + htab->brlt->output_section->vma);
721956f4
AM		 6196 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
6197 rela.r_addend = off;
6198
4ce794b7
AM		 6199 rl = htab->relbrlt->contents;
6200 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
6201 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM		 6202 }
6203
6204 off = (br_entry->offset
4ce794b7
AM		 6205 + htab->brlt->output_offset
6206 + htab->brlt->output_section->vma
6207 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 6208 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6209
ad8e1ba5 6210 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM		 6211 {
6212 (*_bfd_error_handler)
e86ce104 6213 (_("linkage table error against `%s'"),
721956f4 6214 stub_entry->root.string);
5d1634d7 6215 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 6216 htab->stub_error = TRUE;
6217 return FALSE;
5d1634d7 6218 }
41bd81ab 6219
721956f4 6220 indx = off;
ad8e1ba5
AM		 6221 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
6222 {
4ce794b7 6223 bfd_put_32 (stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6224 loc += 4;
4ce794b7 6225 bfd_put_32 (stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5
AM		 6226 size = 16;
6227 }
6228 else
6229 {
6230 bfd_vma r2off;
6231
6232 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6233 - htab->stub_group[stub_entry->id_sec->id].toc_off);
4ce794b7 6234 bfd_put_32 (stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6235 loc += 4;
4ce794b7 6236 bfd_put_32 (stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6237 loc += 4;
4ce794b7 6238 bfd_put_32 (stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 6239 loc += 4;
4ce794b7 6240 bfd_put_32 (stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6241 loc += 4;
4ce794b7 6242 bfd_put_32 (stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM		 6243 size = 28;
6244 }
6245 loc += 4;
4ce794b7 6246 bfd_put_32 (stub_bfd, MTCTR_R11, loc);
ad8e1ba5 6247 loc += 4;
4ce794b7 6248 bfd_put_32 (stub_bfd, BCTR, loc);
721956f4 6249 break;
5d1634d7 6250
721956f4 6251 case ppc_stub_plt_call:
c862ae31
AM		 6252 /* Do the best we can for shared libraries built without
6253 exporting ".foo" for each "foo". This can happen when symbol
6254 versioning scripts strip all bar a subset of symbols. */
6255 if (stub_entry->h->oh->root.type != bfd_link_hash_defined
6256 && stub_entry->h->oh->root.type != bfd_link_hash_defweak)
6257 {
6258 /* Point the symbol at the stub. There may be multiple stubs,
6259 we don't really care; The main thing is to make this sym
8f3bab57
AM		 6260 defined somewhere. Maybe defining the symbol in the stub
6261 section is a silly idea. If we didn't do this, htab->top_id
6262 could disappear. */
c862ae31
AM		 6263 stub_entry->h->oh->root.type = bfd_link_hash_defined;
6264 stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec;
6265 stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset;
6266 }
6267
721956f4 6268 /* Now build the stub. */
411e1bfb
AM		 6269 off = (bfd_vma) -1;
6270 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6271 if (ent->addend == stub_entry->addend)
6272 {
6273 off = ent->plt.offset;
6274 break;
6275 }
721956f4
AM		 6276 if (off >= (bfd_vma) -2)
6277 abort ();
6278
6279 off &= ~ (bfd_vma) 1;
4ce794b7
AM		 6280 off += (htab->plt->output_offset
6281 + htab->plt->output_section->vma
6282 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6283 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6284
ad8e1ba5 6285 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM		 6286 {
6287 (*_bfd_error_handler)
6288 (_("linkage table error against `%s'"),
6289 stub_entry->h->elf.root.root.string);
6290 bfd_set_error (bfd_error_bad_value);
b34976b6
AM		 6291 htab->stub_error = TRUE;
6292 return FALSE;
721956f4
AM		 6293 }
6294
4ce794b7 6295 p = build_plt_stub (stub_bfd, loc, off);
721956f4
AM		 6296 size = p - loc;
6297 break;
6298
6299 default:
6300 BFD_FAIL ();
b34976b6 6301 return FALSE;
721956f4
AM		 6302 }
6303
6304 stub_sec->_cooked_size += size;
b34976b6 6305 return TRUE;
721956f4
AM		 6306}
6307
6308/* As above, but don't actually build the stub. Just bump offset so
6309 we know stub section sizes, and select plt_branch stubs where
6310 long_branch stubs won't do. */
6311
b34976b6 6312static bfd_boolean
4ce794b7 6313ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM		 6314{
6315 struct ppc_stub_hash_entry *stub_entry;
6316 struct ppc_link_hash_table *htab;
6317 bfd_vma off;
6318 int size;
6319
6320 /* Massage our args to the form they really have. */
6321 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 6322 htab = in_arg;
721956f4
AM		 6323
6324 if (stub_entry->stub_type == ppc_stub_plt_call)
6325 {
411e1bfb 6326 struct plt_entry *ent;
58ac9f71 6327 off = (bfd_vma) -1;
411e1bfb
AM		 6328 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6329 if (ent->addend == stub_entry->addend)
6330 {
6331 off = ent->plt.offset & ~(bfd_vma) 1;
6332 break;
6333 }
58ac9f71 6334 if (off >= (bfd_vma) -2)
411e1bfb 6335 abort ();
4ce794b7
AM		 6336 off += (htab->plt->output_offset
6337 + htab->plt->output_section->vma
6338 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6339 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6340
ad8e1ba5 6341 size = PLT_CALL_STUB_SIZE;
4ce794b7 6342 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM		 6343 size += 4;
6344 }
6345 else
6346 {
ad8e1ba5
AM		 6347 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
6348 variants. */
721956f4
AM		 6349 off = (stub_entry->target_value
6350 + stub_entry->target_section->output_offset
6351 + stub_entry->target_section->output_section->vma);
6352 off -= (stub_entry->stub_sec->_raw_size
6353 + stub_entry->stub_sec->output_offset
6354 + stub_entry->stub_sec->output_section->vma);
6355
ad8e1ba5
AM		 6356 /* Reset the stub type from the plt variant in case we now
6357 can reach with a shorter stub. */
6358 if (stub_entry->stub_type >= ppc_stub_plt_branch)
6359 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
6360
6361 size = 4;
6362 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
6363 {
6364 off -= 12;
6365 size = 16;
6366 }
6367
6368 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM		 6369 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
6370 {
6371 struct ppc_branch_hash_entry *br_entry;
6372
6373 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6374 stub_entry->root.string + 9,
b34976b6 6375 TRUE, FALSE);
721956f4
AM		 6376 if (br_entry == NULL)
6377 {
6378 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
6379 stub_entry->root.string + 9);
b34976b6
AM		 6380 htab->stub_error = TRUE;
6381 return FALSE;
721956f4
AM		 6382 }
6383
6384 if (br_entry->iter != htab->stub_iteration)
6385 {
6386 br_entry->iter = htab->stub_iteration;
4ce794b7
AM		 6387 br_entry->offset = htab->brlt->_raw_size;
6388 htab->brlt->_raw_size += 8;
721956f4 6389 }
ad8e1ba5
AM		 6390
6391 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 6392 size = 16;
ad8e1ba5
AM		 6393 if (stub_entry->stub_type != ppc_stub_plt_branch)
6394 size = 28;
721956f4
AM		 6395 }
6396 }
6397
6398 stub_entry->stub_sec->_raw_size += size;
b34976b6 6399 return TRUE;
721956f4
AM		 6400}
6401
6402/* Set up various things so that we can make a list of input sections
6403 for each output section included in the link. Returns -1 on error,
cedb70c5 6404 0 when no stubs will be needed, and 1 on success. */
721956f4
AM		 6405
6406int
4ce794b7 6407ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
721956f4
AM		 6408{
6409 bfd *input_bfd;
734b6cf9 6410 int top_id, top_index, id;
721956f4 6411 asection *section;
734b6cf9 6412 asection **input_list;
721956f4
AM		 6413 bfd_size_type amt;
6414 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6415
4ce794b7 6416 if (htab->brlt == NULL)
721956f4
AM		 6417 return 0;
6418
1e2f5b6e 6419 /* Find the top input section id. */
3d6f9012 6420 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM		 6421 input_bfd != NULL;
6422 input_bfd = input_bfd->link_next)
6423 {
721956f4
AM		 6424 for (section = input_bfd->sections;
6425 section != NULL;
6426 section = section->next)
6427 {
6428 if (top_id < section->id)
6429 top_id = section->id;
6430 }
6431 }
721956f4 6432
8f3bab57 6433 htab->top_id = top_id;
721956f4 6434 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 6435 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM		 6436 if (htab->stub_group == NULL)
6437 return -1;
6438
3d6f9012
AM		 6439 /* Set toc_off for com, und, abs and ind sections. */
6440 for (id = 0; id < 3; id++)
6441 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 6442
3d6f9012 6443 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM		 6444
6445 /* We can't use output_bfd->section_count here to find the top output
6446 section index as some sections may have been removed, and
6447 _bfd_strip_section_from_output doesn't renumber the indices. */
6448 for (section = output_bfd->sections, top_index = 0;
6449 section != NULL;
6450 section = section->next)
6451 {
6452 if (top_index < section->index)
6453 top_index = section->index;
6454 }
6455
6456 htab->top_index = top_index;
6457 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 6458 input_list = bfd_zmalloc (amt);
734b6cf9
AM		 6459 htab->input_list = input_list;
6460 if (input_list == NULL)
6461 return -1;
6462
721956f4
AM		 6463 return 1;
6464}
6465
e717da7e
AM		 6466/* The linker repeatedly calls this function for each TOC input section
6467 and linker generated GOT section. Group input bfds such that the toc
6468 within a group is less than 64k in size. Will break with cute linker
6469 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM		 6470
6471void
4ce794b7 6472ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM		 6473{
6474 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6475
6476 if (!htab->no_multi_toc)
6477 {
6478 bfd_vma addr = isec->output_offset + isec->output_section->vma;
6479 bfd_vma off = addr - htab->toc_curr;
6480 if (off + isec->_raw_size > 0x10000)
6481 {
6482 htab->toc_curr = addr;
6483 htab->multi_toc_needed = 1;
6484 }
6485 elf_gp (isec->owner) = (htab->toc_curr
6486 - elf_gp (isec->output_section->owner)
6487 + TOC_BASE_OFF);
6488 }
6489}
6490
6491/* Called after the last call to the above function. */
6492
6493void
4ce794b7
AM		 6494ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED,
6495 struct bfd_link_info *info)
ad8e1ba5
AM		 6496{
6497 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5
AM		 6498
6499 /* toc_curr tracks the TOC offset used for code sections below in
6500 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 6501 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM		 6502}
6503
9b5ecbd0
AM		 6504/* No toc references were found in ISEC. If the code in ISEC makes no
6505 calls, then there's no need to use toc adjusting stubs when branching
6506 into ISEC. Actually, indirect calls from ISEC are OK as they will
6507 load r2. */
6508
6509static int
4ce794b7 6510toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0
AM		 6511{
6512 bfd_byte *contents;
6513 bfd_size_type i;
6514 int ret;
6515 int branch_ok;
6516
772119ce
AM		 6517 /* We know none of our code bearing sections will need toc stubs. */
6518 if ((isec->flags & SEC_LINKER_CREATED) != 0)
6519 return 0;
6520
9b5ecbd0
AM		 6521 /* Hack for linux kernel. .fixup contains branches, but only back to
6522 the function that hit an exception. */
6523 branch_ok = strcmp (isec->name, ".fixup") == 0;
6524
6525 contents = elf_section_data (isec)->this_hdr.contents;
6526 if (contents == NULL)
6527 {
6528 contents = bfd_malloc (isec->_raw_size);
6529 if (contents == NULL)
6530 return -1;
6531 if (! bfd_get_section_contents (isec->owner, isec, contents,
e717da7e 6532 0, isec->_raw_size))
9b5ecbd0
AM		 6533 {
6534 free (contents);
6535 return -1;
6536 }
6537 if (info->keep_memory)
6538 elf_section_data (isec)->this_hdr.contents = contents;
6539 }
6540
6541 /* Code scan, because we don't necessarily have relocs on calls to
6542 static functions. */
6543 ret = 0;
6544 for (i = 0; i < isec->_raw_size; i += 4)
6545 {
6546 unsigned long insn = bfd_get_32 (isec->owner, contents + i);
6547 /* Is this a branch? */
772119ce 6548 if ((insn & (0x3f << 26)) == (18 << 26)
9b5ecbd0
AM		 6549 /* If branch and link, it's a function call. */
6550 && ((insn & 1) != 0
6551 /* Sibling calls use a plain branch. I don't know a way
6552 of deciding whether a branch is really a sibling call. */
6553 || !branch_ok))
6554 {
6555 ret = 1;
6556 break;
6557 }
6558 }
6559
6560 if (elf_section_data (isec)->this_hdr.contents != contents)
6561 free (contents);
6562 return ret;
6563}
6564
721956f4
AM		 6565/* The linker repeatedly calls this function for each input section,
6566 in the order that input sections are linked into output sections.
6567 Build lists of input sections to determine groupings between which
6568 we may insert linker stubs. */
6569
9b5ecbd0 6570bfd_boolean
4ce794b7 6571ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM		 6572{
6573 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9b5ecbd0 6574 int ret;
721956f4 6575
734b6cf9
AM		 6576 if ((isec->output_section->flags & SEC_CODE) != 0
6577 && isec->output_section->index <= htab->top_index)
721956f4 6578 {
734b6cf9 6579 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 6580 /* Steal the link_sec pointer for our list. */
721956f4 6581#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM		 6582 /* This happens to make the list in reverse order,
6583 which is what we want. */
734b6cf9
AM		 6584 PREV_SEC (isec) = *list;
6585 *list = isec;
721956f4 6586 }
ad8e1ba5
AM		 6587
6588 /* If a code section has a function that uses the TOC then we need
6589 to use the right TOC (obviously). Also, make sure that .opd gets
6590 the correct TOC value. */
6591 if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0)
9b5ecbd0
AM		 6592 {
6593 if (elf_gp (isec->owner) != 0)
6594 htab->toc_curr = elf_gp (isec->owner);
6595 }
6596 else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0)
6597 return FALSE;
6598 else
6599 isec->has_gp_reloc = ret;
ad8e1ba5
AM		 6600
6601 /* Functions that don't use the TOC can belong in any TOC group.
6602 Use the last TOC base. This happens to make _init and _fini
6603 pasting work. */
6604 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 6605 return TRUE;
721956f4
AM		 6606}
6607
6608/* See whether we can group stub sections together. Grouping stub
6609 sections may result in fewer stubs. More importantly, we need to
6610 put all .init* and .fini* stubs at the beginning of the .init or
6611 .fini output sections respectively, because glibc splits the
6612 _init and _fini functions into multiple parts. Putting a stub in
6613 the middle of a function is not a good idea. */
6614
6615static void
4ce794b7
AM		 6616group_sections (struct ppc_link_hash_table *htab,
6617 bfd_size_type stub_group_size,
6618 bfd_boolean stubs_always_before_branch)
721956f4 6619{
734b6cf9
AM		 6620 asection **list = htab->input_list + htab->top_index;
6621 do
721956f4 6622 {
734b6cf9
AM		 6623 asection *tail = *list;
6624 while (tail != NULL)
721956f4 6625 {
734b6cf9
AM		 6626 asection *curr;
6627 asection *prev;
6628 bfd_size_type total;
6629 bfd_boolean big_sec;
6630 bfd_vma curr_toc;
6631
6632 curr = tail;
6633 if (tail->_cooked_size)
6634 total = tail->_cooked_size;
6635 else
6636 total = tail->_raw_size;
6637 big_sec = total >= stub_group_size;
6638 curr_toc = htab->stub_group[tail->id].toc_off;
6639
6640 while ((prev = PREV_SEC (curr)) != NULL
6641 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM		 6642 < stub_group_size)
6643 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM		 6644 curr = prev;
6645
6646 /* OK, the size from the start of CURR to the end is less
6647 than stub_group_size and thus can be handled by one stub
6648 section. (or the tail section is itself larger than
6649 stub_group_size, in which case we may be toast.) We
6650 should really be keeping track of the total size of stubs
6651 added here, as stubs contribute to the final output
6652 section size. That's a little tricky, and this way will
6653 only break if stubs added make the total size more than
6654 2^25, ie. for the default stub_group_size, if stubs total
6655 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6656 do
721956f4
AM		 6657 {
6658 prev = PREV_SEC (tail);
734b6cf9 6659 /* Set up this stub group. */
721956f4
AM		 6660 htab->stub_group[tail->id].link_sec = curr;
6661 }
734b6cf9
AM		 6662 while (tail != curr && (tail = prev) != NULL);
6663
6664 /* But wait, there's more! Input sections up to stub_group_size
6665 bytes before the stub section can be handled by it too.
6666 Don't do this if we have a really large section after the
6667 stubs, as adding more stubs increases the chance that
6668 branches may not reach into the stub section. */
6669 if (!stubs_always_before_branch && !big_sec)
6670 {
6671 total = 0;
6672 while (prev != NULL
6673 && ((total += tail->output_offset - prev->output_offset)
6674 < stub_group_size)
6675 && htab->stub_group[prev->id].toc_off == curr_toc)
6676 {
6677 tail = prev;
6678 prev = PREV_SEC (tail);
6679 htab->stub_group[tail->id].link_sec = curr;
6680 }
6681 }
6682 tail = prev;
721956f4
AM		 6683 }
6684 }
734b6cf9
AM		 6685 while (list-- != htab->input_list);
6686 free (htab->input_list);
721956f4
AM		 6687#undef PREV_SEC
6688}
6689
721956f4
AM		 6690/* Determine and set the size of the stub section for a final link.
6691
6692 The basic idea here is to examine all the relocations looking for
6693 PC-relative calls to a target that is unreachable with a "bl"
6694 instruction. */
6695
b34976b6 6696bfd_boolean
4ce794b7 6697ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM		 6698 struct bfd_link_info *info,
6699 bfd_signed_vma group_size,
6700 asection *(*add_stub_section) (const char *, asection *),
6701 void (*layout_sections_again) (void))
721956f4
AM		 6702{
6703 bfd_size_type stub_group_size;
b34976b6 6704 bfd_boolean stubs_always_before_branch;
721956f4
AM		 6705 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6706
6707 /* Stash our params away. */
721956f4
AM		 6708 htab->add_stub_section = add_stub_section;
6709 htab->layout_sections_again = layout_sections_again;
6710 stubs_always_before_branch = group_size < 0;
6711 if (group_size < 0)
6712 stub_group_size = -group_size;
6713 else
6714 stub_group_size = group_size;
6715 if (stub_group_size == 1)
6716 {
6717 /* Default values. */
58ac9f71
AM		 6718 if (stubs_always_before_branch)
6719 {
6720 stub_group_size = 0x1e00000;
6721 if (htab->has_14bit_branch)
6722 stub_group_size = 0x7800;
6723 }
6724 else
6725 {
6726 stub_group_size = 0x1c00000;
6727 if (htab->has_14bit_branch)
6728 stub_group_size = 0x7000;
6729 }
721956f4
AM		 6730 }
6731
6732 group_sections (htab, stub_group_size, stubs_always_before_branch);
6733
721956f4
AM		 6734 while (1)
6735 {
6736 bfd *input_bfd;
6737 unsigned int bfd_indx;
6738 asection *stub_sec;
b34976b6 6739 bfd_boolean stub_changed;
721956f4
AM		 6740
6741 htab->stub_iteration += 1;
b34976b6 6742 stub_changed = FALSE;
721956f4
AM		 6743
6744 for (input_bfd = info->input_bfds, bfd_indx = 0;
6745 input_bfd != NULL;
6746 input_bfd = input_bfd->link_next, bfd_indx++)
6747 {
6748 Elf_Internal_Shdr *symtab_hdr;
6749 asection *section;
6cdc0ccc 6750 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM		 6751
6752 /* We'll need the symbol table in a second. */
6753 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6754 if (symtab_hdr->sh_info == 0)
6755 continue;
6756
721956f4
AM		 6757 /* Walk over each section attached to the input bfd. */
6758 for (section = input_bfd->sections;
6759 section != NULL;
6760 section = section->next)
6761 {
721956f4 6762 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM		 6763
6764 /* If there aren't any relocs, then there's nothing more
6765 to do. */
6766 if ((section->flags & SEC_RELOC) == 0
6767 || section->reloc_count == 0)
6768 continue;
6769
6770 /* If this section is a link-once section that will be
6771 discarded, then don't create any stubs. */
6772 if (section->output_section == NULL
6773 || section->output_section->owner != output_bfd)
6774 continue;
6775
1e2f5b6e
AM		 6776 /* Get the relocs. */
6777 internal_relocs
4ce794b7 6778 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 6779 info->keep_memory);
721956f4 6780 if (internal_relocs == NULL)
1e2f5b6e 6781 goto error_ret_free_local;
721956f4
AM		 6782
6783 /* Now examine each relocation. */
6784 irela = internal_relocs;
6785 irelaend = irela + section->reloc_count;
6786 for (; irela < irelaend; irela++)
6787 {
4ce794b7
AM		 6788 enum elf_ppc64_reloc_type r_type;
6789 unsigned int r_indx;
721956f4
AM		 6790 enum ppc_stub_type stub_type;
6791 struct ppc_stub_hash_entry *stub_entry;
6792 asection *sym_sec;
6793 bfd_vma sym_value;
6794 bfd_vma destination;
6795 struct ppc_link_hash_entry *hash;
411e1bfb
AM		 6796 struct elf_link_hash_entry *h;
6797 Elf_Internal_Sym *sym;
721956f4
AM		 6798 char *stub_name;
6799 const asection *id_sec;
6800
6801 r_type = ELF64_R_TYPE (irela->r_info);
6802 r_indx = ELF64_R_SYM (irela->r_info);
6803
4ce794b7 6804 if (r_type >= R_PPC64_max)
721956f4
AM		 6805 {
6806 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 6807 goto error_ret_free_internal;
721956f4
AM		 6808 }
6809
6810 /* Only look for stubs on branch instructions. */
4ce794b7
AM		 6811 if (r_type != R_PPC64_REL24
6812 && r_type != R_PPC64_REL14
6813 && r_type != R_PPC64_REL14_BRTAKEN
6814 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM		 6815 continue;
6816
6817 /* Now determine the call target, its name, value,
6818 section. */
721956f4 6819 destination = 0;
411e1bfb
AM		 6820 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6821 r_indx, input_bfd))
6822 goto error_ret_free_internal;
6823 hash = (struct ppc_link_hash_entry *) h;
6824
6825 if (hash == NULL)
721956f4
AM		 6826 {
6827 /* It's a local symbol. */
411e1bfb 6828 sym_value = sym->st_value;
721956f4
AM		 6829 destination = (sym_value + irela->r_addend
6830 + sym_sec->output_offset
6831 + sym_sec->output_section->vma);
6832 }
6833 else
6834 {
6835 /* It's an external symbol. */
411e1bfb 6836 sym_value = 0;
721956f4
AM		 6837 if (hash->elf.root.type == bfd_link_hash_defined
6838 || hash->elf.root.type == bfd_link_hash_defweak)
6839 {
721956f4
AM		 6840 sym_value = hash->elf.root.u.def.value;
6841 if (sym_sec->output_section != NULL)
6842 destination = (sym_value + irela->r_addend
6843 + sym_sec->output_offset
6844 + sym_sec->output_section->vma);
6845 }
6846 else if (hash->elf.root.type == bfd_link_hash_undefweak)
6847 ;
6848 else if (hash->elf.root.type == bfd_link_hash_undefined)
6849 ;
6850 else
6851 {
6852 bfd_set_error (bfd_error_bad_value);
6853 goto error_ret_free_internal;
6854 }
6855 }
6856
6857 /* Determine what (if any) linker stub is needed. */
6858 stub_type = ppc_type_of_stub (section, irela, &hash,
6859 destination);
ad8e1ba5
AM		 6860
6861 if (stub_type != ppc_stub_plt_call)
6862 {
6863 /* Check whether we need a TOC adjusting stub.
6864 Since the linker pastes together pieces from
6865 different object files when creating the
6866 _init and _fini functions, it may be that a
6867 call to what looks like a local sym is in
6868 fact a call needing a TOC adjustment. */
6869 if (sym_sec != NULL
6870 && sym_sec->output_section != NULL
6871 && (htab->stub_group[sym_sec->id].toc_off
9b5ecbd0
AM		 6872 != htab->stub_group[section->id].toc_off)
6873 && sym_sec->has_gp_reloc
6874 && section->has_gp_reloc)
ad8e1ba5
AM		 6875 stub_type = ppc_stub_long_branch_r2off;
6876 }
6877
721956f4
AM		 6878 if (stub_type == ppc_stub_none)
6879 continue;
6880
411e1bfb
AM		 6881 /* __tls_get_addr calls might be eliminated. */
6882 if (stub_type != ppc_stub_plt_call
6883 && hash != NULL
6884 && &hash->elf == htab->tls_get_addr
6885 && section->has_tls_reloc
6886 && irela != internal_relocs)
6887 {
6888 /* Get tls info. */
e7b938ca 6889 char *tls_mask;
411e1bfb 6890
e7b938ca 6891 if (!get_tls_mask (&tls_mask, &local_syms,
411e1bfb
AM		 6892 irela - 1, input_bfd))
6893 goto error_ret_free_internal;
e7b938ca 6894 if (*tls_mask != 0)
411e1bfb
AM		 6895 continue;
6896 }
6897
721956f4
AM		 6898 /* Support for grouping stub sections. */
6899 id_sec = htab->stub_group[section->id].link_sec;
6900
6901 /* Get the name of this stub. */
6902 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
6903 if (!stub_name)
6904 goto error_ret_free_internal;
6905
6906 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 6907 stub_name, FALSE, FALSE);
721956f4
AM		 6908 if (stub_entry != NULL)
6909 {
6910 /* The proper stub has already been created. */
6911 free (stub_name);
6912 continue;
6913 }
6914
6915 stub_entry = ppc_add_stub (stub_name, section, htab);
6916 if (stub_entry == NULL)
6917 {
6918 free (stub_name);
6cdc0ccc
AM		 6919 error_ret_free_internal:
6920 if (elf_section_data (section)->relocs == NULL)
6921 free (internal_relocs);
6922 error_ret_free_local:
6923 if (local_syms != NULL
6924 && (symtab_hdr->contents
6925 != (unsigned char *) local_syms))
6926 free (local_syms);
b34976b6 6927 return FALSE;
721956f4
AM		 6928 }
6929
ad8e1ba5 6930 stub_entry->stub_type = stub_type;
721956f4
AM		 6931 stub_entry->target_value = sym_value;
6932 stub_entry->target_section = sym_sec;
721956f4 6933 stub_entry->h = hash;
411e1bfb 6934 stub_entry->addend = irela->r_addend;
b34976b6 6935 stub_changed = TRUE;
721956f4
AM		 6936 }
6937
6938 /* We're done with the internal relocs, free them. */
6cdc0ccc 6939 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 6940 free (internal_relocs);
721956f4 6941 }
6cdc0ccc
AM		 6942
6943 if (local_syms != NULL
6944 && symtab_hdr->contents != (unsigned char *) local_syms)
6945 {
6946 if (!info->keep_memory)
6947 free (local_syms);
6948 else
6949 symtab_hdr->contents = (unsigned char *) local_syms;
6950 }
721956f4
AM		 6951 }
6952
6953 if (!stub_changed)
6954 break;
6955
6956 /* OK, we've added some stubs. Find out the new size of the
6957 stub sections. */
6958 for (stub_sec = htab->stub_bfd->sections;
6959 stub_sec != NULL;
6960 stub_sec = stub_sec->next)
e717da7e
AM		 6961 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
6962 {
6963 stub_sec->_raw_size = 0;
6964 stub_sec->_cooked_size = 0;
6965 }
4ce794b7
AM		 6966 htab->brlt->_raw_size = 0;
6967 htab->brlt->_cooked_size = 0;
721956f4
AM		 6968
6969 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab);
6970
6971 /* Ask the linker to do its stuff. */
6972 (*htab->layout_sections_again) ();
6973 }
6974
afbe61cf
AM		 6975 /* It would be nice to strip .branch_lt from the output if the
6976 section is empty, but it's too late. If we strip sections here,
6977 the dynamic symbol table is corrupted since the section symbol
6978 for the stripped section isn't written. */
721956f4 6979
b34976b6 6980 return TRUE;
721956f4
AM		 6981}
6982
6983/* Called after we have determined section placement. If sections
805fc799 6984 move, we'll be called again. Provide a value for TOCstart. */
721956f4 6985
805fc799 6986bfd_vma
4ce794b7 6987ppc64_elf_toc (bfd *obfd)
721956f4 6988{
805fc799
AM		 6989 asection *s;
6990 bfd_vma TOCstart;
721956f4 6991
805fc799
AM		 6992 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
6993 order. The TOC starts where the first of these sections starts. */
6994 s = bfd_get_section_by_name (obfd, ".got");
6995 if (s == NULL)
6996 s = bfd_get_section_by_name (obfd, ".toc");
6997 if (s == NULL)
6998 s = bfd_get_section_by_name (obfd, ".tocbss");
6999 if (s == NULL)
7000 s = bfd_get_section_by_name (obfd, ".plt");
7001 if (s == NULL)
7002 {
7003 /* This may happen for
7004 o references to TOC base (SYM@toc / TOC[tc0]) without a
7005 .toc directive
7006 o bad linker script
7007 o --gc-sections and empty TOC sections
7008
7009 FIXME: Warn user? */
7010
7011 /* Look for a likely section. We probably won't even be
7012 using TOCstart. */
7013 for (s = obfd->sections; s != NULL; s = s->next)
7014 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
7015 == (SEC_ALLOC | SEC_SMALL_DATA))
7016 break;
721956f4 7017 if (s == NULL)
805fc799
AM		 7018 for (s = obfd->sections; s != NULL; s = s->next)
7019 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
7020 == (SEC_ALLOC | SEC_SMALL_DATA))
7021 break;
721956f4 7022 if (s == NULL)
805fc799
AM		 7023 for (s = obfd->sections; s != NULL; s = s->next)
7024 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
7025 break;
721956f4 7026 if (s == NULL)
805fc799
AM		 7027 for (s = obfd->sections; s != NULL; s = s->next)
7028 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
7029 break;
7030 }
721956f4 7031
805fc799
AM		 7032 TOCstart = 0;
7033 if (s != NULL)
7034 TOCstart = s->output_section->vma + s->output_offset;
721956f4 7035
805fc799 7036 return TOCstart;
721956f4
AM		 7037}
7038
7039/* Build all the stubs associated with the current output file.
7040 The stubs are kept in a hash table attached to the main linker
7041 hash table. This function is called via gldelf64ppc_finish. */
7042
b34976b6 7043bfd_boolean
4ce794b7
AM		 7044ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
7045 struct bfd_link_info *info,
7046 char **stats)
5d1634d7
AM		 7047{
7048 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 7049 asection *stub_sec;
5d1634d7 7050 bfd_byte *p;
e717da7e 7051 int stub_sec_count = 0;
5d1634d7 7052
ad8e1ba5 7053 htab->emit_stub_syms = emit_stub_syms;
721956f4
AM		 7054 for (stub_sec = htab->stub_bfd->sections;
7055 stub_sec != NULL;
7056 stub_sec = stub_sec->next)
e717da7e
AM		 7057 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7058 {
7059 bfd_size_type size;
721956f4 7060
e717da7e
AM		 7061 /* Allocate memory to hold the linker stubs. */
7062 size = stub_sec->_raw_size;
7063 if (size != 0)
7064 {
7065 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
7066 if (stub_sec->contents == NULL)
7067 return FALSE;
7068 }
7069 stub_sec->_cooked_size = 0;
7070 }
5d1634d7 7071
4ce794b7 7072 if (htab->plt != NULL)
5d1634d7 7073 {
9f951329 7074 unsigned int indx;
ad8e1ba5 7075 bfd_vma plt0;
9f951329 7076
721956f4 7077 /* Build the .glink plt call stub. */
4ce794b7
AM		 7078 plt0 = (htab->plt->output_section->vma
7079 + htab->plt->output_offset
7080 - (htab->glink->output_section->vma
7081 + htab->glink->output_offset
ad8e1ba5
AM		 7082 + GLINK_CALL_STUB_SIZE));
7083 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 7084 {
ad8e1ba5
AM		 7085 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
7086 bfd_set_error (bfd_error_bad_value);
7087 return FALSE;
721956f4 7088 }
721956f4 7089
4ce794b7
AM		 7090 p = htab->glink->contents;
7091 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 7092 p += 4;
4ce794b7 7093 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 7094 p += 4;
4ce794b7 7095 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 7096 p += 4;
4ce794b7 7097 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7098 p += 4;
4ce794b7 7099 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 7100 p += 4;
4ce794b7 7101 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 7102 p += 4;
4ce794b7 7103 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 7104 p += 4;
4ce794b7 7105 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7106 p += 4;
4ce794b7 7107 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 7108 p += 4;
4ce794b7 7109 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 7110 p += 4;
4ce794b7 7111 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 7112 p += 4;
4ce794b7 7113 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 7114 p += 4;
4ce794b7 7115 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 7116 p += 4;
4ce794b7 7117 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 7118 p += 4;
4ce794b7 7119 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 7120 p += 4;
4ce794b7 7121 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM		 7122 p += 4;
7123
9f951329
AM		 7124 /* Build the .glink lazy link call stubs. */
7125 indx = 0;
4ce794b7 7126 while (p < htab->glink->contents + htab->glink->_raw_size)
9f951329
AM		 7127 {
7128 if (indx < 0x8000)
7129 {
4ce794b7 7130 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM		 7131 p += 4;
7132 }
7133 else
7134 {
4ce794b7 7135 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 7136 p += 4;
4ce794b7 7137 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM		 7138 p += 4;
7139 }
4ce794b7
AM		 7140 bfd_put_32 (htab->glink->owner,
7141 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 7142 indx++;
9f951329
AM		 7143 p += 4;
7144 }
4ce794b7 7145 htab->glink->_cooked_size = p - htab->glink->contents;
5d1634d7 7146 }
5d1634d7 7147
4ce794b7 7148 if (htab->brlt->_raw_size != 0)
721956f4 7149 {
4ce794b7
AM		 7150 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
7151 htab->brlt->_raw_size);
7152 if (htab->brlt->contents == NULL)
b34976b6 7153 return FALSE;
721956f4 7154 }
5d1634d7 7155
721956f4
AM		 7156 /* Build the stubs as directed by the stub hash table. */
7157 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 7158
721956f4
AM		 7159 for (stub_sec = htab->stub_bfd->sections;
7160 stub_sec != NULL;
7161 stub_sec = stub_sec->next)
e717da7e
AM		 7162 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7163 {
7164 stub_sec_count += 1;
7165 if (stub_sec->_raw_size != stub_sec->_cooked_size)
7166 break;
7167 }
5d1634d7 7168
721956f4 7169 if (stub_sec != NULL
4ce794b7 7170 || htab->glink->_raw_size != htab->glink->_cooked_size)
5d1634d7 7171 {
b34976b6 7172 htab->stub_error = TRUE;
721956f4 7173 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 7174 }
721956f4 7175
d2a300cf
AM		 7176 if (htab->stub_error)
7177 return FALSE;
7178
7179 if (stats != NULL)
7180 {
7181 *stats = bfd_malloc (500);
7182 if (*stats == NULL)
7183 return FALSE;
7184
7185 sprintf (*stats, _("linker stubs in %u groups\n"
7186 " branch %lu\n"
7187 " toc adjust %lu\n"
7188 " long branch %lu\n"
7189 " long toc adj %lu\n"
7190 " plt call %lu"),
e717da7e 7191 stub_sec_count,
4ce794b7
AM		 7192 htab->stub_count[ppc_stub_long_branch - 1],
7193 htab->stub_count[ppc_stub_long_branch_r2off - 1],
7194 htab->stub_count[ppc_stub_plt_branch - 1],
7195 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
7196 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM		 7197 }
7198 return TRUE;
5bd4f169
AM		 7199}
7200
5bd4f169
AM		 7201/* The RELOCATE_SECTION function is called by the ELF backend linker
7202 to handle the relocations for a section.
7203
7204 The relocs are always passed as Rela structures; if the section
7205 actually uses Rel structures, the r_addend field will always be
7206 zero.
7207
7208 This function is responsible for adjust the section contents as
7209 necessary, and (if using Rela relocs and generating a
1049f94e 7210 relocatable output file) adjusting the reloc addend as
5bd4f169
AM		 7211 necessary.
7212
7213 This function does not have to worry about setting the reloc
7214 address or the reloc symbol index.
7215
7216 LOCAL_SYMS is a pointer to the swapped in local symbols.
7217
7218 LOCAL_SECTIONS is an array giving the section in the input file
7219 corresponding to the st_shndx field of each local symbol.
7220
7221 The global hash table entry for the global symbols can be found
7222 via elf_sym_hashes (input_bfd).
7223
1049f94e 7224 When generating relocatable output, this function must handle
5bd4f169
AM		 7225 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7226 going to be the section symbol corresponding to the output
7227 section, which means that the addend must be adjusted
7228 accordingly. */
7229
b34976b6 7230static bfd_boolean
4ce794b7
AM		 7231ppc64_elf_relocate_section (bfd *output_bfd,
7232 struct bfd_link_info *info,
7233 bfd *input_bfd,
7234 asection *input_section,
7235 bfd_byte *contents,
7236 Elf_Internal_Rela *relocs,
7237 Elf_Internal_Sym *local_syms,
7238 asection **local_sections)
5bd4f169 7239{
65f38f15 7240 struct ppc_link_hash_table *htab;
5bd4f169
AM		 7241 Elf_Internal_Shdr *symtab_hdr;
7242 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM		 7243 Elf_Internal_Rela *rel;
7244 Elf_Internal_Rela *relend;
411e1bfb
AM		 7245 Elf_Internal_Rela outrel;
7246 bfd_byte *loc;
411e1bfb 7247 struct got_entry **local_got_ents;
5bd4f169 7248 bfd_vma TOCstart;
b34976b6
AM		 7249 bfd_boolean ret = TRUE;
7250 bfd_boolean is_opd;
96e0dda4 7251 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 7252 bfd_boolean is_power4 = FALSE;
5bd4f169 7253
1049f94e 7254 if (info->relocatable)
b34976b6 7255 return TRUE;
b491616a 7256
65f38f15 7257 /* Initialize howto table if needed. */
5bd4f169 7258 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM		 7259 ppc_howto_init ();
7260
65f38f15 7261 htab = ppc_hash_table (info);
411e1bfb 7262 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 7263 TOCstart = elf_gp (output_bfd);
5bd4f169
AM		 7264 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
7265 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 7266 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 7267
5bd4f169
AM		 7268 rel = relocs;
7269 relend = relocs + input_section->reloc_count;
7270 for (; rel < relend; rel++)
7271 {
04c9666a 7272 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM		 7273 bfd_vma addend;
7274 bfd_reloc_status_type r;
7275 Elf_Internal_Sym *sym;
7276 asection *sec;
7277 struct elf_link_hash_entry *h;
721956f4 7278 struct elf_link_hash_entry *fdh;
5bd4f169 7279 const char *sym_name;
5bd4f169 7280 unsigned long r_symndx;
951fd09b 7281 char tls_mask, tls_gd, tls_type;
5bd4f169 7282 bfd_vma relocation;
b34976b6
AM		 7283 bfd_boolean unresolved_reloc;
7284 bfd_boolean warned;
adadcc0c 7285 long insn, mask;
721956f4
AM		 7286 struct ppc_stub_hash_entry *stub_entry;
7287 bfd_vma max_br_offset;
7288 bfd_vma from;
5bd4f169 7289
4ce794b7 7290 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 7291 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7
AM		 7292 sym = NULL;
7293 sec = NULL;
7294 h = NULL;
7295 sym_name = NULL;
b34976b6
AM		 7296 unresolved_reloc = FALSE;
7297 warned = FALSE;
65f38f15 7298
0b13192e 7299 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM		 7300 {
7301 /* It's a local symbol. */
7302 sym = local_syms + r_symndx;
7303 sec = local_sections[r_symndx];
411e1bfb 7304 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
f8df10f4 7305 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
1e2f5b6e
AM		 7306 if (elf_section_data (sec) != NULL)
7307 {
7308 long *opd_sym_adjust;
7309
f0abc2a1 7310 opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust;
1e2f5b6e
AM		 7311 if (opd_sym_adjust != NULL && sym->st_value % 24 == 0)
7312 relocation += opd_sym_adjust[sym->st_value / 24];
7313 }
5bd4f169
AM		 7314 }
7315 else
7316 {
7317 /* It's a global symbol. */
7318 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7319 while (h->root.type == bfd_link_hash_indirect
7320 || h->root.type == bfd_link_hash_warning)
7321 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7322 sym_name = h->root.root.string;
65f38f15 7323 relocation = 0;
5bd4f169
AM		 7324 if (h->root.type == bfd_link_hash_defined
7325 || h->root.type == bfd_link_hash_defweak)
7326 {
7327 sec = h->root.u.def.section;
65f38f15
AM		 7328 if (sec->output_section == NULL)
7329 /* Set a flag that will be cleared later if we find a
7330 relocation value for this symbol. output_section
7331 is typically NULL for symbols satisfied by a shared
7332 library. */
b34976b6 7333 unresolved_reloc = TRUE;
5bd4f169
AM		 7334 else
7335 relocation = (h->root.u.def.value
7336 + sec->output_section->vma
7337 + sec->output_offset);
7338 }
7339 else if (h->root.type == bfd_link_hash_undefweak)
65f38f15 7340 ;
9203ba99 7341 else if (!info->executable
65f38f15
AM		 7342 && !info->no_undefined
7343 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
7344 ;
5bd4f169
AM		 7345 else
7346 {
7347 if (! ((*info->callbacks->undefined_symbol)
7348 (info, h->root.root.string, input_bfd, input_section,
411e1bfb
AM		 7349 rel->r_offset, (!info->shared
7350 || info->no_undefined
7351 || ELF_ST_VISIBILITY (h->other)))))
b34976b6
AM		 7352 return FALSE;
7353 warned = TRUE;
5bd4f169
AM		 7354 }
7355 }
7356
951fd09b
AM		 7357 /* TLS optimizations. Replace instruction sequences and relocs
7358 based on information we collected in tls_optimize. We edit
7359 RELOCS so that --emit-relocs will output something sensible
7360 for the final instruction stream. */
7361 tls_mask = 0;
7362 tls_gd = 0;
d881513a 7363 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM		 7364 {
7365 if (h != NULL)
e7b938ca 7366 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
411e1bfb
AM		 7367 else if (local_got_ents != NULL)
7368 {
e7b938ca
AM		 7369 char *lgot_masks;
7370 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
7371 tls_mask = lgot_masks[r_symndx];
411e1bfb
AM		 7372 }
7373 }
7374
7375 /* Ensure reloc mapping code below stays sane. */
7376 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
7377 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
7378 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
7379 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
7380 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
7381 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
7382 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
7383 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
7384 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
7385 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
7386 abort ();
7387 switch (r_type)
7388 {
7389 default:
411e1bfb
AM		 7390 break;
7391
7392 case R_PPC64_TOC16:
7393 case R_PPC64_TOC16_LO:
7394 case R_PPC64_TOC16_DS:
7395 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM		 7396 {
7397 /* Check for toc tls entries. */
7398 char *toc_tls;
951fd09b 7399 int retval;
411e1bfb 7400
e7b938ca 7401 retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd);
951fd09b 7402 if (retval == 0)
411e1bfb
AM		 7403 return FALSE;
7404
7405 if (toc_tls)
7406 {
951fd09b 7407 tls_mask = *toc_tls;
411e1bfb
AM		 7408 if (r_type == R_PPC64_TOC16_DS
7409 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM		 7410 {
7411 if (tls_mask != 0
7412 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
7413 goto toctprel;
7414 }
411e1bfb 7415 else
951fd09b
AM		 7416 {
7417 /* If we found a GD reloc pair, then we might be
7418 doing a GD->IE transition. */
7419 if (retval == 2)
7420 {
7421 tls_gd = TLS_TPRELGD;
7422 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7423 goto tls_get_addr_check;
7424 }
7425 else if (retval == 3)
7426 {
7427 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7428 goto tls_get_addr_check;
7429 }
7430 }
411e1bfb
AM		 7431 }
7432 }
7433 break;
7434
7435 case R_PPC64_GOT_TPREL16_DS:
7436 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM		 7437 if (tls_mask != 0
7438 && (tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 7439 {
7440 bfd_vma insn;
81407a69 7441 toctprel:
411e1bfb
AM		 7442 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
7443 insn &= 31 << 21;
7444 insn |= 0x3c0d0000; /* addis 0,13,0 */
7445 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
7446 r_type = R_PPC64_TPREL16_HA;
7447 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7448 }
7449 break;
7450
7451 case R_PPC64_TLS:
951fd09b 7452 if (tls_mask == 0)
411e1bfb
AM		 7453 {
7454 /* Check for toc tls entries. */
7455 char *toc_tls;
7456
e7b938ca 7457 if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd))
411e1bfb
AM		 7458 return FALSE;
7459
7460 if (toc_tls)
951fd09b 7461 tls_mask = *toc_tls;
411e1bfb 7462 }
951fd09b
AM		 7463 if (tls_mask != 0
7464 && (tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 7465 {
7466 bfd_vma insn, rtra;
7467 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 7468 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM		 7469 == ((31 << 26) | (13 << 11)))
7470 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 7471 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM		 7472 == ((31 << 26) | (13 << 16)))
7473 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
7474 else
7475 abort ();
7476 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
7477 /* add -> addi. */
7478 insn = 14 << 26;
7479 else if ((insn & (31 << 1)) == 23 << 1
7480 && ((insn & (31 << 6)) < 14 << 6
7481 || ((insn & (31 << 6)) >= 16 << 6
7482 && (insn & (31 << 6)) < 24 << 6)))
7483 /* load and store indexed -> dform. */
7484 insn = (32 | ((insn >> 6) & 31)) << 26;
7485 else if ((insn & (31 << 1)) == 21 << 1
7486 && (insn & (0x1a << 6)) == 0)
7487 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7488 insn = (((58 | ((insn >> 6) & 4)) << 26)
7489 | ((insn >> 6) & 1));
7490 else if ((insn & (31 << 1)) == 21 << 1
7491 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
7492 /* lwax -> lwa. */
7493 insn = (58 << 26) | 2;
7494 else
7495 abort ();
7496 insn |= rtra;
7497 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7498 r_type = R_PPC64_TPREL16_LO;
7499 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7500 /* Was PPC64_TLS which sits on insn boundary, now
7501 PPC64_TPREL16_LO which is at insn+2. */
7502 rel->r_offset += 2;
7503 }
7504 break;
7505
411e1bfb
AM		 7506 case R_PPC64_GOT_TLSGD16_HI:
7507 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM		 7508 tls_gd = TLS_TPRELGD;
7509 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7510 goto tls_gdld_hi;
7511 break;
7512
411e1bfb
AM		 7513 case R_PPC64_GOT_TLSLD16_HI:
7514 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7515 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 7516 {
951fd09b
AM		 7517 tls_gdld_hi:
7518 if ((tls_mask & tls_gd) != 0)
7519 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7520 + R_PPC64_GOT_TPREL16_DS);
7521 else
411e1bfb 7522 {
951fd09b
AM		 7523 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7524 rel->r_offset -= 2;
7525 r_type = R_PPC64_NONE;
411e1bfb 7526 }
951fd09b 7527 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7528 }
7529 break;
7530
951fd09b
AM		 7531 case R_PPC64_GOT_TLSGD16:
7532 case R_PPC64_GOT_TLSGD16_LO:
7533 tls_gd = TLS_TPRELGD;
7534 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7535 goto tls_get_addr_check;
7536 break;
411e1bfb 7537
951fd09b
AM		 7538 case R_PPC64_GOT_TLSLD16:
7539 case R_PPC64_GOT_TLSLD16_LO:
7540 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7541 {
7542 tls_get_addr_check:
7543 if (rel + 1 < relend)
411e1bfb 7544 {
951fd09b
AM		 7545 enum elf_ppc64_reloc_type r_type2;
7546 unsigned long r_symndx2;
7547 struct elf_link_hash_entry *h2;
7548 bfd_vma insn1, insn2, insn3;
7549 bfd_vma offset;
7550
7551 /* The next instruction should be a call to
7552 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 7553 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM		 7554 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7555 if (r_symndx2 < symtab_hdr->sh_info
7556 || (r_type2 != R_PPC64_REL14
7557 && r_type2 != R_PPC64_REL14_BRTAKEN
7558 && r_type2 != R_PPC64_REL14_BRNTAKEN
7559 && r_type2 != R_PPC64_REL24))
7560 break;
7561
7562 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7563 while (h2->root.type == bfd_link_hash_indirect
7564 || h2->root.type == bfd_link_hash_warning)
7565 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
7566 if (h2 == NULL || h2 != htab->tls_get_addr)
7567 break;
7568
7569 /* OK, it checks out. Replace the call. */
7570 offset = rel[1].r_offset;
7571 insn1 = bfd_get_32 (output_bfd,
7572 contents + rel->r_offset - 2);
7573 insn3 = bfd_get_32 (output_bfd,
7574 contents + offset + 4);
7575 if ((tls_mask & tls_gd) != 0)
411e1bfb 7576 {
951fd09b
AM		 7577 /* IE */
7578 insn1 &= (1 << 26) - (1 << 2);
7579 insn1 |= 58 << 26; /* ld */
7580 insn2 = 0x7c636a14; /* add 3,3,13 */
7581 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
7582 if ((tls_mask & TLS_EXPLICIT) == 0)
7583 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7584 + R_PPC64_GOT_TPREL16_DS);
7585 else
7586 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
7587 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM		 7588 }
7589 else
951fd09b
AM		 7590 {
7591 /* LE */
7592 insn1 = 0x3c6d0000; /* addis 3,13,0 */
7593 insn2 = 0x38630000; /* addi 3,3,0 */
7594 if (tls_gd == 0)
7595 {
7596 /* Was an LD reloc. */
7597 r_symndx = 0;
7598 rel->r_addend = htab->tls_sec->vma + DTP_OFFSET;
7599 rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET;
7600 }
7601 r_type = R_PPC64_TPREL16_HA;
7602 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7603 rel[1].r_info = ELF64_R_INFO (r_symndx,
7604 R_PPC64_TPREL16_LO);
7605 rel[1].r_offset += 2;
7606 }
7607 if (insn3 == NOP
7608 || insn3 == CROR_151515 || insn3 == CROR_313131)
7609 {
7610 insn3 = insn2;
7611 insn2 = NOP;
7612 rel[1].r_offset += 4;
7613 }
7614 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
7615 bfd_put_32 (output_bfd, insn2, contents + offset);
7616 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
7617 if (tls_gd == 0)
7618 {
7619 /* We changed the symbol on an LD reloc. Start over
ad8e1ba5 7620 in order to get h, sym, sec etc. right. */
951fd09b
AM		 7621 rel--;
7622 continue;
7623 }
411e1bfb 7624 }
411e1bfb 7625 }
411e1bfb
AM		 7626 break;
7627
7628 case R_PPC64_DTPMOD64:
951fd09b
AM		 7629 if (rel + 1 < relend
7630 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
7631 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 7632 {
951fd09b
AM		 7633 if ((tls_mask & TLS_GD) == 0)
7634 {
7635 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
7636 if ((tls_mask & TLS_TPRELGD) != 0)
7637 r_type = R_PPC64_TPREL64;
7638 else
7639 {
4ce794b7 7640 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM		 7641 r_type = R_PPC64_NONE;
7642 }
7643 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7644 }
7645 }
7646 else
7647 {
7648 if ((tls_mask & TLS_LD) == 0)
411e1bfb 7649 {
4ce794b7 7650 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 7651 r_type = R_PPC64_NONE;
951fd09b 7652 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 7653 }
411e1bfb
AM		 7654 }
7655 break;
7656
7657 case R_PPC64_TPREL64:
951fd09b 7658 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM		 7659 {
7660 r_type = R_PPC64_NONE;
7661 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7662 }
7663 break;
7664 }
7665
7666 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 7667 insn = 0;
65f38f15 7668 switch (r_type)
5bd4f169
AM		 7669 {
7670 default:
65f38f15 7671 break;
5bd4f169 7672
65f38f15
AM		 7673 /* Branch taken prediction relocations. */
7674 case R_PPC64_ADDR14_BRTAKEN:
7675 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH		 7676 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7677 /* Fall thru. */
65f38f15 7678
86c76c7b 7679 /* Branch not taken prediction relocations. */
65f38f15
AM		 7680 case R_PPC64_ADDR14_BRNTAKEN:
7681 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM		 7682 insn |= bfd_get_32 (output_bfd,
7683 contents + rel->r_offset) & ~(0x01 << 21);
96e0dda4
AM		 7684 if (is_power4)
7685 {
7686 /* Set 'a' bit. This is 0b00010 in BO field for branch
7687 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7688 for branch on CTR insns (BO == 1a00t or 1a01t). */
7689 if ((insn & (0x14 << 21)) == (0x04 << 21))
7690 insn |= 0x02 << 21;
7691 else if ((insn & (0x14 << 21)) == (0x10 << 21))
7692 insn |= 0x08 << 21;
7693 else
7694 break;
7695 }
65f38f15 7696 else
96e0dda4 7697 {
411e1bfb 7698 from = (rel->r_offset
805fc799
AM		 7699 + input_section->output_offset
7700 + input_section->output_section->vma);
7701
96e0dda4 7702 /* Invert 'y' bit if not the default. */
411e1bfb 7703 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
96e0dda4
AM		 7704 insn ^= 0x01 << 21;
7705 }
86c76c7b 7706
4ce794b7 7707 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
65f38f15 7708 break;
5bd4f169 7709
65f38f15 7710 case R_PPC64_REL24:
ad8e1ba5
AM		 7711 /* Calls to functions with a different TOC, such as calls to
7712 shared objects, need to alter the TOC pointer. This is
7713 done using a linkage stub. A REL24 branching to these
7714 linkage stubs needs to be followed by a nop, as the nop
7715 will be replaced with an instruction to restore the TOC
7716 base pointer. */
7717 if (((h != NULL
7718 && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL
7719 && fdh->plt.plist != NULL)
7720 || ((fdh = h, sec) != NULL
7721 && sec->output_section != NULL
7722 && (htab->stub_group[sec->id].toc_off
7723 != htab->stub_group[input_section->id].toc_off)))
721956f4 7724 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM		 7725 rel, htab)) != NULL
7726 && (stub_entry->stub_type == ppc_stub_plt_call
7727 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
7728 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 7729 {
b34976b6 7730 bfd_boolean can_plt_call = 0;
721956f4 7731
411e1bfb 7732 if (rel->r_offset + 8 <= input_section->_cooked_size)
41bd81ab 7733 {
411e1bfb 7734 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
721956f4
AM		 7735 if (insn == NOP
7736 || insn == CROR_151515 || insn == CROR_313131)
41bd81ab 7737 {
4ce794b7 7738 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 7739 contents + rel->r_offset + 4);
721956f4 7740 can_plt_call = 1;
41bd81ab 7741 }
5bd4f169 7742 }
721956f4
AM		 7743
7744 if (!can_plt_call)
7745 {
ad8e1ba5
AM		 7746 if (stub_entry->stub_type == ppc_stub_plt_call)
7747 {
7748 /* If this is a plain branch rather than a branch
7749 and link, don't require a nop. */
7750 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
7751 if ((insn & 1) == 0)
7752 can_plt_call = 1;
7753 }
7754 else
7755 {
7756 if (strcmp (input_section->output_section->name,
7757 ".init") == 0
7758 || strcmp (input_section->output_section->name,
7759 ".fini") == 0)
7760 (*_bfd_error_handler)
7761 (_("%s(%s+0x%lx): automatic multiple TOCs "
7762 "not supported using your crt files; "
7763 "recompile with -mminimal-toc or upgrade gcc"),
7764 bfd_archive_filename (input_bfd),
7765 input_section->name,
7766 (long) rel->r_offset);
7767 else
7768 (*_bfd_error_handler)
7769 (_("%s(%s+0x%lx): sibling call optimization to `%s' "
7770 "does not allow automatic multiple TOCs; "
7771 "recompile with -mminimal-toc or "
7772 "-fno-optimize-sibling-calls, "
7773 "or make `%s' extern"),
7774 bfd_archive_filename (input_bfd),
7775 input_section->name,
7776 (long) rel->r_offset,
7777 sym_name,
7778 sym_name);
7779 bfd_set_error (bfd_error_bad_value);
7780 ret = FALSE;
7781 }
721956f4
AM		 7782 }
7783
7784 if (can_plt_call)
7785 {
7786 relocation = (stub_entry->stub_offset
7787 + stub_entry->stub_sec->output_offset
7788 + stub_entry->stub_sec->output_section->vma);
ad8e1ba5
AM		 7789 if (stub_entry->stub_type == ppc_stub_plt_call)
7790 unresolved_reloc = FALSE;
721956f4 7791 }
5bd4f169 7792 }
e86ce104
AM		 7793
7794 if (h != NULL
7795 && h->root.type == bfd_link_hash_undefweak
721956f4 7796 && relocation == 0
411e1bfb 7797 && rel->r_addend == 0)
e86ce104 7798 {
721956f4
AM		 7799 /* Tweak calls to undefined weak functions to point at a
7800 blr. We can thus call a weak function without first
7801 checking whether the function is defined. We have a
7802 blr at the end of .sfpr. */
805fc799 7803 BFD_ASSERT (htab->sfpr->_raw_size != 0);
721956f4
AM		 7804 relocation = (htab->sfpr->_raw_size - 4
7805 + htab->sfpr->output_offset
7806 + htab->sfpr->output_section->vma);
411e1bfb 7807 from = (rel->r_offset
721956f4
AM		 7808 + input_section->output_offset
7809 + input_section->output_section->vma);
805fc799 7810
721956f4
AM		 7811 /* But let's not be silly about it. If the blr isn't in
7812 reach, just go to the next instruction. */
805fc799
AM		 7813 if (relocation - from + (1 << 25) >= (1 << 26)
7814 || htab->sfpr->_raw_size == 0)
721956f4 7815 relocation = from + 4;
e86ce104 7816 }
65f38f15
AM		 7817 break;
7818 }
5bd4f169 7819
65f38f15 7820 /* Set `addend'. */
411e1bfb
AM		 7821 tls_type = 0;
7822 addend = rel->r_addend;
65f38f15
AM		 7823 switch (r_type)
7824 {
7825 default:
7826 (*_bfd_error_handler)
7827 (_("%s: unknown relocation type %d for symbol %s"),
7828 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
5bd4f169 7829
65f38f15 7830 bfd_set_error (bfd_error_bad_value);
b34976b6 7831 ret = FALSE;
65f38f15 7832 continue;
5bd4f169 7833
65f38f15 7834 case R_PPC64_NONE:
411e1bfb 7835 case R_PPC64_TLS:
04c9666a
AM		 7836 case R_PPC64_GNU_VTINHERIT:
7837 case R_PPC64_GNU_VTENTRY:
65f38f15 7838 continue;
5bd4f169
AM		 7839
7840 /* GOT16 relocations. Like an ADDR16 using the symbol's
7841 address in the GOT as relocation value instead of the
411e1bfb 7842 symbol's value itself. Also, create a GOT entry for the
5bd4f169 7843 symbol and put the symbol value there. */
411e1bfb
AM		 7844 case R_PPC64_GOT_TLSGD16:
7845 case R_PPC64_GOT_TLSGD16_LO:
7846 case R_PPC64_GOT_TLSGD16_HI:
7847 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 7848 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM		 7849 goto dogot;
7850
7851 case R_PPC64_GOT_TLSLD16:
7852 case R_PPC64_GOT_TLSLD16_LO:
7853 case R_PPC64_GOT_TLSLD16_HI:
7854 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7855 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM		 7856 goto dogot;
7857
7858 case R_PPC64_GOT_TPREL16_DS:
7859 case R_PPC64_GOT_TPREL16_LO_DS:
7860 case R_PPC64_GOT_TPREL16_HI:
7861 case R_PPC64_GOT_TPREL16_HA:
7862 tls_type = TLS_TLS | TLS_TPREL;
7863 goto dogot;
7864
7865 case R_PPC64_GOT_DTPREL16_DS:
7866 case R_PPC64_GOT_DTPREL16_LO_DS:
7867 case R_PPC64_GOT_DTPREL16_HI:
7868 case R_PPC64_GOT_DTPREL16_HA:
7869 tls_type = TLS_TLS | TLS_DTPREL;
7870 goto dogot;
7871
65f38f15
AM		 7872 case R_PPC64_GOT16:
7873 case R_PPC64_GOT16_LO:
7874 case R_PPC64_GOT16_HI:
7875 case R_PPC64_GOT16_HA:
7876 case R_PPC64_GOT16_DS:
7877 case R_PPC64_GOT16_LO_DS:
411e1bfb 7878 dogot:
5bd4f169
AM		 7879 {
7880 /* Relocation is to the entry for this symbol in the global
7881 offset table. */
e717da7e 7882 asection *got;
d881513a 7883 bfd_vma *offp;
5bd4f169 7884 bfd_vma off;
d881513a 7885 unsigned long indx = 0;
65f38f15 7886
d881513a
AM		 7887 if (tls_type == (TLS_TLS | TLS_LD)
7888 && (h == NULL
7889 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
e717da7e 7890 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 7891 else
5bd4f169 7892 {
d881513a 7893 struct got_entry *ent;
5bd4f169 7894
d881513a
AM		 7895 if (h != NULL)
7896 {
7897 bfd_boolean dyn = htab->elf.dynamic_sections_created;
f4656909 7898 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
d881513a 7899 || (info->shared
586119b3 7900 && SYMBOL_REFERENCES_LOCAL (info, h)))
d881513a
AM		 7901 /* This is actually a static link, or it is a
7902 -Bsymbolic link and the symbol is defined
7903 locally, or the symbol was forced to be local
7904 because of a version file. */
7905 ;
7906 else
7907 {
7908 indx = h->dynindx;
7909 unresolved_reloc = FALSE;
7910 }
7911 ent = h->got.glist;
7912 }
411e1bfb 7913 else
5bd4f169 7914 {
d881513a
AM		 7915 if (local_got_ents == NULL)
7916 abort ();
7917 ent = local_got_ents[r_symndx];
5bd4f169 7918 }
d881513a
AM		 7919
7920 for (; ent != NULL; ent = ent->next)
7921 if (ent->addend == rel->r_addend
e717da7e 7922 && ent->owner == input_bfd
d881513a
AM		 7923 && ent->tls_type == tls_type)
7924 break;
7925 if (ent == NULL)
7926 abort ();
7927 offp = &ent->got.offset;
5bd4f169 7928 }
411e1bfb 7929
e717da7e
AM		 7930 got = ppc64_elf_tdata (input_bfd)->got;
7931 if (got == NULL)
7932 abort ();
7933
411e1bfb
AM		 7934 /* The offset must always be a multiple of 8. We use the
7935 least significant bit to record whether we have already
7936 processed this entry. */
d881513a 7937 off = *offp;
411e1bfb
AM		 7938 if ((off & 1) != 0)
7939 off &= ~1;
5bd4f169
AM		 7940 else
7941 {
411e1bfb
AM		 7942 /* Generate relocs for the dynamic linker, except in
7943 the case of TLSLD where we'll use one entry per
7944 module. */
e717da7e
AM		 7945 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
7946
d881513a 7947 *offp = off | 1;
4e795f50
AM		 7948 if ((info->shared || indx != 0)
7949 && (h == NULL
7950 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
7951 || h->root.type != bfd_link_hash_undefweak))
5bd4f169 7952 {
e717da7e
AM		 7953 outrel.r_offset = (got->output_section->vma
7954 + got->output_offset
411e1bfb 7955 + off);
81407a69 7956 outrel.r_addend = rel->r_addend;
d881513a 7957 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 7958 {
411e1bfb 7959 outrel.r_addend = 0;
e515b051 7960 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM		 7961 if (tls_type == (TLS_TLS | TLS_GD))
7962 {
e717da7e
AM		 7963 loc = relgot->contents;
7964 loc += (relgot->reloc_count++
d881513a
AM		 7965 * sizeof (Elf64_External_Rela));
7966 bfd_elf64_swap_reloca_out (output_bfd,
7967 &outrel, loc);
e515b051 7968 outrel.r_offset += 8;
81407a69 7969 outrel.r_addend = rel->r_addend;
d881513a
AM		 7970 outrel.r_info
7971 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 7972 }
411e1bfb 7973 }
951fd09b 7974 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 7975 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 7976 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM		 7977 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
7978 else if (indx == 0)
81407a69
AM		 7979 {
7980 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
7981
7982 /* Write the .got section contents for the sake
7983 of prelink. */
e717da7e 7984 loc = got->contents + off;
23fbd6fa
JJ		 7985 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
7986 loc);
81407a69 7987 }
411e1bfb
AM		 7988 else
7989 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM		 7990
7991 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM		 7992 {
7993 outrel.r_addend += relocation;
7994 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
7995 outrel.r_addend -= htab->tls_sec->vma;
7996 }
e717da7e
AM		 7997 loc = relgot->contents;
7998 loc += (relgot->reloc_count++
411e1bfb
AM		 7999 * sizeof (Elf64_External_Rela));
8000 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8001 }
8002
ad8e1ba5 8003 /* Init the .got section contents here if we're not
81407a69 8004 emitting a reloc. */
d881513a 8005 else
411e1bfb 8006 {
d881513a 8007 relocation += rel->r_addend;
7b609f53
AM		 8008 if (tls_type == (TLS_TLS | TLS_LD))
8009 relocation = 1;
8010 else if (tls_type != 0)
411e1bfb
AM		 8011 {
8012 relocation -= htab->tls_sec->vma + DTP_OFFSET;
7b609f53 8013 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 8014 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 8015
7b609f53
AM		 8016 if (tls_type == (TLS_TLS | TLS_GD))
8017 {
8018 bfd_put_64 (output_bfd, relocation,
e717da7e 8019 got->contents + off + 8);
7b609f53
AM		 8020 relocation = 1;
8021 }
411e1bfb 8022 }
7b609f53 8023
411e1bfb 8024 bfd_put_64 (output_bfd, relocation,
e717da7e 8025 got->contents + off);
5bd4f169
AM		 8026 }
8027 }
8028
65f38f15
AM		 8029 if (off >= (bfd_vma) -2)
8030 abort ();
8031
e717da7e 8032 relocation = got->output_offset + off;
65f38f15 8033
5bd4f169 8034 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 8035 addend = -TOC_BASE_OFF;
5bd4f169 8036 }
65f38f15
AM		 8037 break;
8038
8039 case R_PPC64_PLT16_HA:
8040 case R_PPC64_PLT16_HI:
8041 case R_PPC64_PLT16_LO:
8042 case R_PPC64_PLT32:
8043 case R_PPC64_PLT64:
8044 /* Relocation is to the entry for this symbol in the
8045 procedure linkage table. */
8046
8047 /* Resolve a PLT reloc against a local symbol directly,
8048 without using the procedure linkage table. */
8049 if (h == NULL)
8050 break;
8051
411e1bfb
AM		 8052 /* It's possible that we didn't make a PLT entry for this
8053 symbol. This happens when statically linking PIC code,
8054 or when using -Bsymbolic. Go find a match if there is a
8055 PLT entry. */
4ce794b7 8056 if (htab->plt != NULL)
65f38f15 8057 {
411e1bfb
AM		 8058 struct plt_entry *ent;
8059 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8060 if (ent->addend == rel->r_addend
8061 && ent->plt.offset != (bfd_vma) -1)
8062 {
4ce794b7
AM		 8063 relocation = (htab->plt->output_section->vma
8064 + htab->plt->output_offset
411e1bfb
AM		 8065 + ent->plt.offset);
8066 unresolved_reloc = FALSE;
8067 }
65f38f15 8068 }
65f38f15 8069 break;
5bd4f169 8070
0b13192e
AM		 8071 case R_PPC64_TOC:
8072 /* Relocation value is TOC base. */
8073 relocation = TOCstart;
8074 if (r_symndx == 0)
8075 relocation += htab->stub_group[input_section->id].toc_off;
8076 else if (sec != NULL && !unresolved_reloc)
8077 relocation += htab->stub_group[sec->id].toc_off;
8078 else
8079 unresolved_reloc = TRUE;
8080 goto dodyn2;
8081
5bd4f169
AM		 8082 /* TOC16 relocs. We want the offset relative to the TOC base,
8083 which is the address of the start of the TOC plus 0x8000.
8084 The TOC consists of sections .got, .toc, .tocbss, and .plt,
8085 in this order. */
65f38f15
AM		 8086 case R_PPC64_TOC16:
8087 case R_PPC64_TOC16_LO:
8088 case R_PPC64_TOC16_HI:
8089 case R_PPC64_TOC16_DS:
8090 case R_PPC64_TOC16_LO_DS:
8091 case R_PPC64_TOC16_HA:
ad8e1ba5 8092 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM		 8093 break;
8094
8095 /* Relocate against the beginning of the section. */
65f38f15
AM		 8096 case R_PPC64_SECTOFF:
8097 case R_PPC64_SECTOFF_LO:
8098 case R_PPC64_SECTOFF_HI:
8099 case R_PPC64_SECTOFF_DS:
8100 case R_PPC64_SECTOFF_LO_DS:
8101 case R_PPC64_SECTOFF_HA:
4ce794b7 8102 if (sec != NULL)
65f38f15 8103 addend -= sec->output_section->vma;
5bd4f169
AM		 8104 break;
8105
721956f4
AM		 8106 case R_PPC64_REL14:
8107 case R_PPC64_REL14_BRNTAKEN:
8108 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM		 8109 case R_PPC64_REL24:
8110 break;
8111
411e1bfb
AM		 8112 case R_PPC64_TPREL16:
8113 case R_PPC64_TPREL16_LO:
8114 case R_PPC64_TPREL16_HI:
8115 case R_PPC64_TPREL16_HA:
8116 case R_PPC64_TPREL16_DS:
8117 case R_PPC64_TPREL16_LO_DS:
8118 case R_PPC64_TPREL16_HIGHER:
8119 case R_PPC64_TPREL16_HIGHERA:
8120 case R_PPC64_TPREL16_HIGHEST:
8121 case R_PPC64_TPREL16_HIGHESTA:
8122 addend -= htab->tls_sec->vma + TP_OFFSET;
8123 if (info->shared)
8124 /* The TPREL16 relocs shouldn't really be used in shared
8125 libs as they will result in DT_TEXTREL being set, but
8126 support them anyway. */
8127 goto dodyn;
8128 break;
8129
8130 case R_PPC64_DTPREL16:
8131 case R_PPC64_DTPREL16_LO:
8132 case R_PPC64_DTPREL16_HI:
8133 case R_PPC64_DTPREL16_HA:
8134 case R_PPC64_DTPREL16_DS:
8135 case R_PPC64_DTPREL16_LO_DS:
8136 case R_PPC64_DTPREL16_HIGHER:
8137 case R_PPC64_DTPREL16_HIGHERA:
8138 case R_PPC64_DTPREL16_HIGHEST:
8139 case R_PPC64_DTPREL16_HIGHESTA:
8140 addend -= htab->tls_sec->vma + DTP_OFFSET;
8141 break;
8142
e515b051
AM		 8143 case R_PPC64_DTPMOD64:
8144 relocation = 1;
8145 addend = 0;
8146 goto dodyn;
8147
411e1bfb
AM		 8148 case R_PPC64_TPREL64:
8149 addend -= htab->tls_sec->vma + TP_OFFSET;
8150 goto dodyn;
8151
8152 case R_PPC64_DTPREL64:
8153 addend -= htab->tls_sec->vma + DTP_OFFSET;
8154 /* Fall thru */
8155
65f38f15
AM		 8156 /* Relocations that may need to be propagated if this is a
8157 dynamic object. */
04c9666a 8158 case R_PPC64_REL30:
65f38f15
AM		 8159 case R_PPC64_REL32:
8160 case R_PPC64_REL64:
8161 case R_PPC64_ADDR14:
8162 case R_PPC64_ADDR14_BRNTAKEN:
8163 case R_PPC64_ADDR14_BRTAKEN:
8164 case R_PPC64_ADDR16:
8165 case R_PPC64_ADDR16_DS:
8166 case R_PPC64_ADDR16_HA:
8167 case R_PPC64_ADDR16_HI:
8168 case R_PPC64_ADDR16_HIGHER:
8169 case R_PPC64_ADDR16_HIGHERA:
8170 case R_PPC64_ADDR16_HIGHEST:
8171 case R_PPC64_ADDR16_HIGHESTA:
8172 case R_PPC64_ADDR16_LO:
8173 case R_PPC64_ADDR16_LO_DS:
8174 case R_PPC64_ADDR24:
65f38f15
AM		 8175 case R_PPC64_ADDR32:
8176 case R_PPC64_ADDR64:
8177 case R_PPC64_UADDR16:
8178 case R_PPC64_UADDR32:
8179 case R_PPC64_UADDR64:
ec338859
AM		 8180 /* r_symndx will be zero only for relocs against symbols
8181 from removed linkonce sections, or sections discarded by
8182 a linker script. */
411e1bfb 8183 dodyn:
5d1634d7
AM		 8184 if (r_symndx == 0)
8185 break;
8186 /* Fall thru. */
8187
0b13192e 8188 dodyn2:
5d1634d7 8189 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM		 8190 break;
8191
41bd81ab
AM		 8192 if (NO_OPD_RELOCS && is_opd)
8193 break;
8194
65f38f15 8195 if ((info->shared
4e795f50
AM		 8196 && (h == NULL
8197 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8198 || h->root.type != bfd_link_hash_undefweak)
411e1bfb 8199 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 8200 || !SYMBOL_CALLS_LOCAL (info, h)))
f4656909
AM		 8201 || (ELIMINATE_COPY_RELOCS
8202 && !info->shared
65f38f15
AM		 8203 && h != NULL
8204 && h->dynindx != -1
8205 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM		 8206 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8207 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
65f38f15
AM		 8208 {
8209 Elf_Internal_Rela outrel;
b34976b6 8210 bfd_boolean skip, relocate;
65f38f15 8211 asection *sreloc;
947216bf 8212 bfd_byte *loc;
1cf1f670 8213 bfd_vma out_off;
65f38f15
AM		 8214
8215 /* When generating a dynamic object, these relocations
8216 are copied into the output file to be resolved at run
8217 time. */
8218
b34976b6
AM		 8219 skip = FALSE;
8220 relocate = FALSE;
65f38f15 8221
1cf1f670
AM		 8222 out_off = _bfd_elf_section_offset (output_bfd, info,
8223 input_section, rel->r_offset);
8224 if (out_off == (bfd_vma) -1)
b34976b6 8225 skip = TRUE;
1cf1f670 8226 else if (out_off == (bfd_vma) -2)
b34976b6 8227 skip = TRUE, relocate = TRUE;
1cf1f670
AM		 8228 out_off += (input_section->output_section->vma
8229 + input_section->output_offset);
8230 outrel.r_offset = out_off;
411e1bfb 8231 outrel.r_addend = rel->r_addend;
65f38f15 8232
1cf1f670
AM		 8233 /* Optimize unaligned reloc use. */
8234 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
8235 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
8236 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
8237 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
8238 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
8239 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
8240 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
8241 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
8242 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
8243
65f38f15 8244 if (skip)
0bb2d96a 8245 memset (&outrel, 0, sizeof outrel);
f6c52c13 8246 else if (!SYMBOL_REFERENCES_LOCAL (info, h)
0b13192e
AM		 8247 && !is_opd
8248 && r_type != R_PPC64_TOC)
0bb2d96a 8249 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
65f38f15
AM		 8250 else
8251 {
41bd81ab
AM		 8252 /* This symbol is local, or marked to become local,
8253 or this is an opd section reloc which must point
8254 at a local function. */
65f38f15 8255 outrel.r_addend += relocation;
e86ce104 8256 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 8257 {
3fad3c7c 8258 if (is_opd && h != NULL)
afbe61cf
AM		 8259 {
8260 /* Lie about opd entries. This case occurs
8261 when building shared libraries and we
8262 reference a function in another shared
3fad3c7c
AM		 8263 lib. The same thing happens for a weak
8264 definition in an application that's
8265 overridden by a strong definition in a
8266 shared lib. (I believe this is a generic
8267 bug in binutils handling of weak syms.)
8268 In these cases we won't use the opd
1e2f5b6e 8269 entry in this lib. */
b34976b6 8270 unresolved_reloc = FALSE;
afbe61cf 8271 }
65f38f15 8272 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM		 8273
8274 /* We need to relocate .opd contents for ld.so.
8275 Prelink also wants simple and consistent rules
8276 for relocs. This make all RELATIVE relocs have
8277 *r_offset equal to r_addend. */
8278 relocate = TRUE;
65f38f15
AM		 8279 }
8280 else
8281 {
8282 long indx = 0;
8283
41bd81ab 8284 if (bfd_is_abs_section (sec))
65f38f15
AM		 8285 ;
8286 else if (sec == NULL || sec->owner == NULL)
8287 {
8288 bfd_set_error (bfd_error_bad_value);
b34976b6 8289 return FALSE;
65f38f15
AM		 8290 }
8291 else
8292 {
8293 asection *osec;
8294
8295 osec = sec->output_section;
8296 indx = elf_section_data (osec)->dynindx;
8297
8298 /* We are turning this relocation into one
8299 against a section symbol, so subtract out
8300 the output section's address but not the
8301 offset of the input section in the output
8302 section. */
8303 outrel.r_addend -= osec->vma;
8304 }
8305
8306 outrel.r_info = ELF64_R_INFO (indx, r_type);
8307 }
8308 }
8309
8310 sreloc = elf_section_data (input_section)->sreloc;
8311 if (sreloc == NULL)
8312 abort ();
8313
947216bf
AM		 8314 loc = sreloc->contents;
8315 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM		 8316 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8317
8318 /* If this reloc is against an external symbol, it will
8319 be computed at runtime, so there's no need to do
81407a69
AM		 8320 anything now. However, for the sake of prelink ensure
8321 that the section contents are a known value. */
65f38f15 8322 if (! relocate)
81407a69
AM		 8323 {
8324 unresolved_reloc = FALSE;
8325 /* The value chosen here is quite arbitrary as ld.so
8326 ignores section contents except for the special
8327 case of .opd where the contents might be accessed
8328 before relocation. Choose zero, as that won't
8329 cause reloc overflow. */
8330 relocation = 0;
8331 addend = 0;
8332 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
8333 to improve backward compatibility with older
8334 versions of ld. */
8335 if (r_type == R_PPC64_ADDR64)
8336 addend = outrel.r_addend;
8337 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 8338 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM		 8339 addend = (input_section->output_section->vma
8340 + input_section->output_offset
8341 + rel->r_offset);
81407a69 8342 }
65f38f15 8343 }
5bd4f169
AM		 8344 break;
8345
65f38f15
AM		 8346 case R_PPC64_COPY:
8347 case R_PPC64_GLOB_DAT:
8348 case R_PPC64_JMP_SLOT:
8349 case R_PPC64_RELATIVE:
8350 /* We shouldn't ever see these dynamic relocs in relocatable
8351 files. */
ae9a127f 8352 /* Fall through. */
65f38f15
AM		 8353
8354 case R_PPC64_PLTGOT16:
8355 case R_PPC64_PLTGOT16_DS:
8356 case R_PPC64_PLTGOT16_HA:
8357 case R_PPC64_PLTGOT16_HI:
8358 case R_PPC64_PLTGOT16_LO:
8359 case R_PPC64_PLTGOT16_LO_DS:
8360 case R_PPC64_PLTREL32:
8361 case R_PPC64_PLTREL64:
8362 /* These ones haven't been implemented yet. */
8363
8364 (*_bfd_error_handler)
7b609f53 8365 (_("%s: relocation %s is not supported for symbol %s."),
65f38f15 8366 bfd_archive_filename (input_bfd),
4ce794b7 8367 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM		 8368
8369 bfd_set_error (bfd_error_invalid_operation);
b34976b6 8370 ret = FALSE;
5bd4f169 8371 continue;
65f38f15 8372 }
5bd4f169 8373
65f38f15
AM		 8374 /* Do any further special processing. */
8375 switch (r_type)
8376 {
8377 default:
8378 break;
8379
8380 case R_PPC64_ADDR16_HA:
8381 case R_PPC64_ADDR16_HIGHERA:
8382 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM		 8383 case R_PPC64_GOT16_HA:
8384 case R_PPC64_PLTGOT16_HA:
65f38f15
AM		 8385 case R_PPC64_PLT16_HA:
8386 case R_PPC64_TOC16_HA:
8387 case R_PPC64_SECTOFF_HA:
411e1bfb
AM		 8388 case R_PPC64_TPREL16_HA:
8389 case R_PPC64_DTPREL16_HA:
8390 case R_PPC64_GOT_TLSGD16_HA:
8391 case R_PPC64_GOT_TLSLD16_HA:
8392 case R_PPC64_GOT_TPREL16_HA:
8393 case R_PPC64_GOT_DTPREL16_HA:
8394 case R_PPC64_TPREL16_HIGHER:
8395 case R_PPC64_TPREL16_HIGHERA:
8396 case R_PPC64_TPREL16_HIGHEST:
8397 case R_PPC64_TPREL16_HIGHESTA:
8398 case R_PPC64_DTPREL16_HIGHER:
8399 case R_PPC64_DTPREL16_HIGHERA:
8400 case R_PPC64_DTPREL16_HIGHEST:
8401 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM		 8402 /* It's just possible that this symbol is a weak symbol
8403 that's not actually defined anywhere. In that case,
8404 'sec' would be NULL, and we should leave the symbol
8405 alone (it will be set to zero elsewhere in the link). */
8406 if (sec != NULL)
e515b051
AM		 8407 /* Add 0x10000 if sign bit in 0:15 is set.
8408 Bits 0:15 are not used. */
8409 addend += 0x8000;
65f38f15
AM		 8410 break;
8411
8412 case R_PPC64_ADDR16_DS:
8413 case R_PPC64_ADDR16_LO_DS:
8414 case R_PPC64_GOT16_DS:
8415 case R_PPC64_GOT16_LO_DS:
8416 case R_PPC64_PLT16_LO_DS:
8417 case R_PPC64_SECTOFF_DS:
8418 case R_PPC64_SECTOFF_LO_DS:
8419 case R_PPC64_TOC16_DS:
8420 case R_PPC64_TOC16_LO_DS:
8421 case R_PPC64_PLTGOT16_DS:
8422 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM		 8423 case R_PPC64_GOT_TPREL16_DS:
8424 case R_PPC64_GOT_TPREL16_LO_DS:
8425 case R_PPC64_GOT_DTPREL16_DS:
8426 case R_PPC64_GOT_DTPREL16_LO_DS:
8427 case R_PPC64_TPREL16_DS:
8428 case R_PPC64_TPREL16_LO_DS:
8429 case R_PPC64_DTPREL16_DS:
8430 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM		 8431 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
8432 mask = 3;
8433 /* If this reloc is against an lq insn, then the value must be
8434 a multiple of 16. This is somewhat of a hack, but the
8435 "correct" way to do this by defining _DQ forms of all the
8436 _DS relocs bloats all reloc switches in this file. It
8437 doesn't seem to make much sense to use any of these relocs
8438 in data, so testing the insn should be safe. */
494dac0c 8439 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM		 8440 mask = 15;
8441 if (((relocation + addend) & mask) != 0)
65f38f15
AM		 8442 {
8443 (*_bfd_error_handler)
adadcc0c 8444 (_("%s: error: relocation %s not a multiple of %d"),
65f38f15 8445 bfd_archive_filename (input_bfd),
4ce794b7 8446 ppc64_elf_howto_table[r_type]->name,
adadcc0c 8447 mask + 1);
65f38f15 8448 bfd_set_error (bfd_error_bad_value);
b34976b6 8449 ret = FALSE;
65f38f15
AM		 8450 continue;
8451 }
8452 break;
721956f4
AM		 8453
8454 case R_PPC64_REL14:
8455 case R_PPC64_REL14_BRNTAKEN:
8456 case R_PPC64_REL14_BRTAKEN:
8457 max_br_offset = 1 << 15;
8458 goto branch_check;
8459
8460 case R_PPC64_REL24:
8461 max_br_offset = 1 << 25;
8462
8463 branch_check:
ad8e1ba5
AM		 8464 /* If the branch is out of reach or the TOC register needs
8465 adjusting, then redirect the call to the local stub for
8466 this function. */
411e1bfb 8467 from = (rel->r_offset
721956f4
AM		 8468 + input_section->output_offset
8469 + input_section->output_section->vma);
ad8e1ba5
AM		 8470 if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset
8471 || (sec != NULL
8472 && sec->output_section != NULL
8f3bab57 8473 && sec->id <= htab->top_id
ad8e1ba5
AM		 8474 && (htab->stub_group[sec->id].toc_off
8475 != htab->stub_group[input_section->id].toc_off)))
721956f4
AM		 8476 && (stub_entry = ppc_get_stub_entry (input_section, sec, h,
8477 rel, htab)) != NULL)
8478 {
8479 /* Munge up the value and addend so that we call the stub
8480 rather than the procedure directly. */
8481 relocation = (stub_entry->stub_offset
8482 + stub_entry->stub_sec->output_offset
8483 + stub_entry->stub_sec->output_section->vma);
8484 addend = 0;
8485 }
8486 break;
5bd4f169
AM		 8487 }
8488
239e1f3a
AM		 8489 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8490 because such sections are not SEC_ALLOC and thus ld.so will
8491 not process them. */
65f38f15 8492 if (unresolved_reloc
239e1f3a 8493 && !((input_section->flags & SEC_DEBUGGING) != 0
65f38f15 8494 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
9c07fe7c
AM		 8495 {
8496 (*_bfd_error_handler)
7b609f53 8497 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
9c07fe7c
AM		 8498 bfd_archive_filename (input_bfd),
8499 bfd_get_section_name (input_bfd, input_section),
8500 (long) rel->r_offset,
7b609f53 8501 ppc64_elf_howto_table[(int) r_type]->name,
9c07fe7c 8502 h->root.root.string);
b34976b6 8503 ret = FALSE;
9c07fe7c 8504 }
5bd4f169 8505
65f38f15 8506 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM		 8507 input_bfd,
8508 input_section,
8509 contents,
411e1bfb 8510 rel->r_offset,
5bd4f169
AM		 8511 relocation,
8512 addend);
8513
ef60b7ff 8514 if (r != bfd_reloc_ok)
5bd4f169 8515 {
cd27b276
AM		 8516 if (sym_name == NULL)
8517 sym_name = "(null)";
8518 if (r == bfd_reloc_overflow)
5bd4f169 8519 {
cd27b276
AM		 8520 if (warned)
8521 continue;
8522 if (h != NULL
8523 && h->root.type == bfd_link_hash_undefweak
4ce794b7 8524 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM		 8525 {
8526 /* Assume this is a call protected by other code that
8527 detects the symbol is undefined. If this is the case,
8528 we can safely ignore the overflow. If not, the
8529 program is hosed anyway, and a little warning isn't
8530 going to help. */
8531
8532 continue;
8533 }
8534
ef60b7ff 8535 if (!((*info->callbacks->reloc_overflow)
4ce794b7 8536 (info, sym_name, ppc64_elf_howto_table[r_type]->name,
411e1bfb 8537 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 8538 return FALSE;
ef60b7ff
AM		 8539 }
8540 else
8541 {
8542 (*_bfd_error_handler)
7b609f53 8543 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
ef60b7ff
AM		 8544 bfd_archive_filename (input_bfd),
8545 bfd_get_section_name (input_bfd, input_section),
7b609f53 8546 (long) rel->r_offset,
4ce794b7 8547 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM		 8548 sym_name,
8549 (int) r);
b34976b6 8550 ret = FALSE;
ef60b7ff 8551 }
5bd4f169 8552 }
5bd4f169
AM		 8553 }
8554
5bd4f169
AM		 8555 return ret;
8556}
8557
8558/* Finish up dynamic symbol handling. We set the contents of various
8559 dynamic sections here. */
8560
b34976b6 8561static bfd_boolean
4ce794b7
AM		 8562ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
8563 struct bfd_link_info *info,
8564 struct elf_link_hash_entry *h,
8565 Elf_Internal_Sym *sym)
5bd4f169 8566{
65f38f15 8567 struct ppc_link_hash_table *htab;
5bd4f169
AM		 8568 bfd *dynobj;
8569
65f38f15
AM		 8570 htab = ppc_hash_table (info);
8571 dynobj = htab->elf.dynobj;
5bd4f169 8572
411e1bfb 8573 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
5bd4f169 8574 {
411e1bfb 8575 struct plt_entry *ent;
65f38f15 8576 Elf_Internal_Rela rela;
947216bf 8577 bfd_byte *loc;
5bd4f169 8578
411e1bfb
AM		 8579 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8580 if (ent->plt.offset != (bfd_vma) -1)
8581 {
8582 /* This symbol has an entry in the procedure linkage
8583 table. Set it up. */
5bd4f169 8584
4ce794b7
AM		 8585 if (htab->plt == NULL
8586 || htab->relplt == NULL
8587 || htab->glink == NULL)
411e1bfb 8588 abort ();
5bd4f169 8589
411e1bfb
AM		 8590 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8591 fill in the PLT entry. */
4ce794b7
AM		 8592 rela.r_offset = (htab->plt->output_section->vma
8593 + htab->plt->output_offset
411e1bfb
AM		 8594 + ent->plt.offset);
8595 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
8596 rela.r_addend = ent->addend;
5bd4f169 8597
4ce794b7 8598 loc = htab->relplt->contents;
411e1bfb
AM		 8599 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
8600 * sizeof (Elf64_External_Rela));
8601 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8602 }
5bd4f169
AM		 8603 }
8604
8605 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
8606 {
5bd4f169 8607 Elf_Internal_Rela rela;
947216bf 8608 bfd_byte *loc;
5bd4f169 8609
65f38f15 8610 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 8611
65f38f15
AM		 8612 if (h->dynindx == -1
8613 || (h->root.type != bfd_link_hash_defined
8614 && h->root.type != bfd_link_hash_defweak)
4ce794b7 8615 || htab->relbss == NULL)
65f38f15 8616 abort ();
5bd4f169
AM		 8617
8618 rela.r_offset = (h->root.u.def.value
8619 + h->root.u.def.section->output_section->vma
8620 + h->root.u.def.section->output_offset);
8621 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
8622 rela.r_addend = 0;
4ce794b7
AM		 8623 loc = htab->relbss->contents;
8624 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 8625 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM		 8626 }
8627
5bd4f169
AM		 8628 /* Mark some specially defined symbols as absolute. */
8629 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
8630 sym->st_shndx = SHN_ABS;
8631
b34976b6 8632 return TRUE;
5bd4f169
AM		 8633}
8634
65f38f15
AM		 8635/* Used to decide how to sort relocs in an optimal manner for the
8636 dynamic linker, before writing them out. */
8637
8638static enum elf_reloc_type_class
4ce794b7 8639ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 8640{
04c9666a 8641 enum elf_ppc64_reloc_type r_type;
a33d1f77 8642
4ce794b7 8643 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 8644 switch (r_type)
65f38f15
AM		 8645 {
8646 case R_PPC64_RELATIVE:
8647 return reloc_class_relative;
8648 case R_PPC64_JMP_SLOT:
8649 return reloc_class_plt;
8650 case R_PPC64_COPY:
8651 return reloc_class_copy;
8652 default:
8653 return reloc_class_normal;
8654 }
8655}
8656
5bd4f169
AM		 8657/* Finish up the dynamic sections. */
8658
b34976b6 8659static bfd_boolean
4ce794b7
AM		 8660ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
8661 struct bfd_link_info *info)
5bd4f169 8662{
65f38f15
AM		 8663 struct ppc_link_hash_table *htab;
8664 bfd *dynobj;
5bd4f169 8665 asection *sdyn;
5bd4f169 8666
65f38f15
AM		 8667 htab = ppc_hash_table (info);
8668 dynobj = htab->elf.dynobj;
5bd4f169
AM		 8669 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8670
65f38f15 8671 if (htab->elf.dynamic_sections_created)
5bd4f169 8672 {
5bd4f169
AM		 8673 Elf64_External_Dyn *dyncon, *dynconend;
8674
4ce794b7 8675 if (sdyn == NULL || htab->got == NULL)
65f38f15 8676 abort ();
5bd4f169
AM		 8677
8678 dyncon = (Elf64_External_Dyn *) sdyn->contents;
8679 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
8680 for (; dyncon < dynconend; dyncon++)
8681 {
8682 Elf_Internal_Dyn dyn;
19397422 8683 asection *s;
5bd4f169
AM		 8684
8685 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
8686
8687 switch (dyn.d_tag)
8688 {
65f38f15
AM		 8689 default:
8690 continue;
5bd4f169 8691
5d1634d7 8692 case DT_PPC64_GLINK:
4ce794b7 8693 s = htab->glink;
6348e046 8694 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM		 8695 /* We stupidly defined DT_PPC64_GLINK to be the start
8696 of glink rather than the first entry point, which is
8697 what ld.so needs, and now have a bigger stub to
8698 support automatic multiple TOCs. */
8699 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM		 8700 break;
8701
19397422
AM		 8702 case DT_PPC64_OPD:
8703 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 8704 if (s == NULL)
8705 continue;
8706 dyn.d_un.d_ptr = s->vma;
19397422
AM		 8707 break;
8708
8709 case DT_PPC64_OPDSZ:
8710 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM		 8711 if (s == NULL)
8712 continue;
8713 dyn.d_un.d_val = s->_raw_size;
19397422
AM		 8714 break;
8715
65f38f15 8716 case DT_PLTGOT:
4ce794b7 8717 s = htab->plt;
6348e046 8718 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM		 8719 break;
8720
8721 case DT_JMPREL:
4ce794b7 8722 s = htab->relplt;
6348e046 8723 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 8724 break;
5bd4f169 8725
65f38f15 8726 case DT_PLTRELSZ:
4ce794b7 8727 dyn.d_un.d_val = htab->relplt->_raw_size;
5d1634d7
AM		 8728 break;
8729
8730 case DT_RELASZ:
8731 /* Don't count procedure linkage table relocs in the
8732 overall reloc count. */
4ce794b7 8733 s = htab->relplt;
6348e046
AM		 8734 if (s == NULL)
8735 continue;
8736 dyn.d_un.d_val -= s->_raw_size;
8737 break;
8738
8739 case DT_RELA:
8740 /* We may not be using the standard ELF linker script.
8741 If .rela.plt is the first .rela section, we adjust
8742 DT_RELA to not include it. */
4ce794b7 8743 s = htab->relplt;
6348e046
AM		 8744 if (s == NULL)
8745 continue;
8746 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
8747 continue;
8748 dyn.d_un.d_ptr += s->_raw_size;
65f38f15 8749 break;
5bd4f169 8750 }
5bd4f169 8751
65f38f15 8752 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 8753 }
5bd4f169
AM		 8754 }
8755
4ce794b7 8756 if (htab->got != NULL && htab->got->_raw_size != 0)
5d1634d7
AM		 8757 {
8758 /* Fill in the first entry in the global offset table.
8759 We use it to hold the link-time TOCbase. */
8760 bfd_put_64 (output_bfd,
60ee0d4a 8761 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 8762 htab->got->contents);
5d1634d7
AM		 8763
8764 /* Set .got entry size. */
4ce794b7 8765 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM		 8766 }
8767
4ce794b7 8768 if (htab->plt != NULL && htab->plt->_raw_size != 0)
5d1634d7
AM		 8769 {
8770 /* Set .plt entry size. */
4ce794b7 8771 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM		 8772 = PLT_ENTRY_SIZE;
8773 }
8774
e717da7e
AM		 8775 /* We need to handle writing out multiple GOT sections ourselves,
8776 since we didn't add them to DYNOBJ. */
8777 while ((dynobj = dynobj->link_next) != NULL)
8778 {
8779 asection *s;
8780 s = ppc64_elf_tdata (dynobj)->got;
8781 if (s != NULL
8782 && s->_raw_size != 0
8783 && s->output_section != bfd_abs_section_ptr
8784 && !bfd_set_section_contents (output_bfd, s->output_section,
8785 s->contents, s->output_offset,
8786 s->_raw_size))
8787 return FALSE;
8788 s = ppc64_elf_tdata (dynobj)->relgot;
8789 if (s != NULL
8790 && s->_raw_size != 0
8791 && s->output_section != bfd_abs_section_ptr
8792 && !bfd_set_section_contents (output_bfd, s->output_section,
8793 s->contents, s->output_offset,
8794 s->_raw_size))
8795 return FALSE;
8796 }
f6c52c13 8797
b34976b6 8798 return TRUE;
5bd4f169
AM		 8799}
8800
5bd4f169 8801#include "elf64-target.h"
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