]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blame - bfd/elf64-ppc.c
* ppc64.h (IS_PPC64_TLS_RELOC): Rename from IS_TLS_RELOC.
[thirdparty/binutils-gdb.git] / bfd / elf64-ppc.c
CommitLineData
5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
86bbe32f 2 Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
5bd4f169
AM
3 Written by Linus Nordberg, Swox AB <info@swox.com>,
4 based on elf32-ppc.c by Ian Lance Taylor.
5
ae9a127f 6 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 7
ae9a127f
NC
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
5bd4f169 12
ae9a127f
NC
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
5bd4f169 17
ae9a127f
NC
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
5bd4f169
AM
21
22/* This file is based on the 64-bit PowerPC ELF ABI. It is also based
23 on the file elf32-ppc.c. */
24
25#include "bfd.h"
26#include "sysdep.h"
27#include "bfdlink.h"
28#include "libbfd.h"
29#include "elf-bfd.h"
04c9666a 30#include "elf/ppc64.h"
5d1634d7 31#include "elf64-ppc.h"
5bd4f169 32
5bd4f169
AM
33static void ppc_howto_init
34 PARAMS ((void));
35static reloc_howto_type *ppc64_elf_reloc_type_lookup
36 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
37static void ppc64_elf_info_to_howto
947216bf 38 PARAMS ((bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst));
805fc799
AM
39static bfd_reloc_status_type ppc64_elf_ha_reloc
40 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
41static bfd_reloc_status_type ppc64_elf_brtaken_reloc
42 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
43static bfd_reloc_status_type ppc64_elf_sectoff_reloc
44 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
45static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
46 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
47static bfd_reloc_status_type ppc64_elf_toc_reloc
48 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
49static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
50 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
51static bfd_reloc_status_type ppc64_elf_toc64_reloc
52 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
53static bfd_reloc_status_type ppc64_elf_unhandled_reloc
5bd4f169 54 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
b34976b6 55static bfd_boolean ppc64_elf_object_p
feee612b 56 PARAMS ((bfd *));
b34976b6 57static bfd_boolean ppc64_elf_merge_private_bfd_data
5bd4f169 58 PARAMS ((bfd *, bfd *));
f0abc2a1
AM
59static bfd_boolean ppc64_elf_new_section_hook
60 PARAMS ((bfd *, asection *));
5bd4f169
AM
61
62
5bd4f169
AM
63/* The name of the dynamic interpreter. This is put in the .interp
64 section. */
65#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
66
67/* The size in bytes of an entry in the procedure linkage table. */
68#define PLT_ENTRY_SIZE 24
69
70/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 71#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
5bd4f169
AM
72
73/* TOC base pointers offset from start of TOC. */
411e1bfb
AM
74#define TOC_BASE_OFF 0x8000
75
76/* Offset of tp and dtp pointers from start of TLS block. */
77#define TP_OFFSET 0x7000
78#define DTP_OFFSET 0x8000
5bd4f169 79
5d1634d7
AM
80/* .plt call stub instructions. */
81#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
82#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
83#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
84#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
85#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
86 /* ld %r11,xxx+16@l(%r12) */
87#define BCTR 0x4e800420 /* bctr */
88
89/* The normal stub is this size. */
90#define PLT_CALL_STUB_SIZE (7*4)
91
92/* But sometimes the .plt entry crosses a 64k boundary, and we need
93 to adjust the high word with this insn. */
94#define ADDIS_R12_R12_1 0x3d8c0001 /* addis %r12,%r12,1 */
5bd4f169 95
5d1634d7
AM
96/* The .glink fixup call stub is the same as the .plt call stub, but
97 the first instruction restores r2, and the std is omitted. */
98#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
99
100/* Always allow this much space. */
101#define GLINK_CALL_STUB_SIZE (8*4)
102
103/* Pad with this. */
104#define NOP 0x60000000
105
721956f4
AM
106/* Some other nops. */
107#define CROR_151515 0x4def7b82
108#define CROR_313131 0x4ffffb82
109
cedb70c5 110/* .glink entries for the first 32k functions are two instructions. */
5d1634d7
AM
111#define LI_R0_0 0x38000000 /* li %r0,0 */
112#define B_DOT 0x48000000 /* b . */
113
114/* After that, we need two instructions to load the index, followed by
115 a branch. */
116#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 117#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 118
82bd7b59
AM
119/* Instructions to save and restore floating point regs. */
120#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
121#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
122#define BLR 0x4e800020 /* blr */
123
41bd81ab
AM
124/* Since .opd is an array of descriptors and each entry will end up
125 with identical R_PPC64_RELATIVE relocs, there is really no need to
126 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 127 relocate .opd without reloc entries. */
41bd81ab
AM
128#ifndef NO_OPD_RELOCS
129#define NO_OPD_RELOCS 0
130#endif
5bd4f169 131\f
f5e87a1d 132#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 133
5bd4f169 134/* Relocation HOWTO's. */
04c9666a 135static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
5bd4f169
AM
136
137static reloc_howto_type ppc64_elf_howto_raw[] = {
138 /* This reloc does nothing. */
139 HOWTO (R_PPC64_NONE, /* type */
140 0, /* rightshift */
411e1bfb
AM
141 2, /* size (0 = byte, 1 = short, 2 = long) */
142 32, /* bitsize */
b34976b6 143 FALSE, /* pc_relative */
5bd4f169 144 0, /* bitpos */
f5e87a1d 145 complain_overflow_dont, /* complain_on_overflow */
5bd4f169
AM
146 bfd_elf_generic_reloc, /* special_function */
147 "R_PPC64_NONE", /* name */
b34976b6 148 FALSE, /* partial_inplace */
d006db6c 149 0, /* src_mask */
5bd4f169 150 0, /* dst_mask */
b34976b6 151 FALSE), /* pcrel_offset */
5bd4f169
AM
152
153 /* A standard 32 bit relocation. */
154 HOWTO (R_PPC64_ADDR32, /* type */
155 0, /* rightshift */
156 2, /* size (0 = byte, 1 = short, 2 = long) */
157 32, /* bitsize */
b34976b6 158 FALSE, /* pc_relative */
5bd4f169
AM
159 0, /* bitpos */
160 complain_overflow_bitfield, /* complain_on_overflow */
161 bfd_elf_generic_reloc, /* special_function */
162 "R_PPC64_ADDR32", /* name */
b34976b6 163 FALSE, /* partial_inplace */
5bd4f169
AM
164 0, /* src_mask */
165 0xffffffff, /* dst_mask */
b34976b6 166 FALSE), /* pcrel_offset */
5bd4f169
AM
167
168 /* An absolute 26 bit branch; the lower two bits must be zero.
169 FIXME: we don't check that, we just clear them. */
170 HOWTO (R_PPC64_ADDR24, /* type */
171 0, /* rightshift */
172 2, /* size (0 = byte, 1 = short, 2 = long) */
173 26, /* bitsize */
b34976b6 174 FALSE, /* pc_relative */
5bd4f169
AM
175 0, /* bitpos */
176 complain_overflow_bitfield, /* complain_on_overflow */
177 bfd_elf_generic_reloc, /* special_function */
178 "R_PPC64_ADDR24", /* name */
b34976b6 179 FALSE, /* partial_inplace */
d006db6c 180 0, /* src_mask */
f5e87a1d 181 0x03fffffc, /* dst_mask */
b34976b6 182 FALSE), /* pcrel_offset */
5bd4f169
AM
183
184 /* A standard 16 bit relocation. */
185 HOWTO (R_PPC64_ADDR16, /* type */
186 0, /* rightshift */
187 1, /* size (0 = byte, 1 = short, 2 = long) */
188 16, /* bitsize */
b34976b6 189 FALSE, /* pc_relative */
5bd4f169
AM
190 0, /* bitpos */
191 complain_overflow_bitfield, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_PPC64_ADDR16", /* name */
b34976b6 194 FALSE, /* partial_inplace */
5bd4f169
AM
195 0, /* src_mask */
196 0xffff, /* dst_mask */
b34976b6 197 FALSE), /* pcrel_offset */
5bd4f169
AM
198
199 /* A 16 bit relocation without overflow. */
200 HOWTO (R_PPC64_ADDR16_LO, /* type */
201 0, /* rightshift */
202 1, /* size (0 = byte, 1 = short, 2 = long) */
203 16, /* bitsize */
b34976b6 204 FALSE, /* pc_relative */
5bd4f169
AM
205 0, /* bitpos */
206 complain_overflow_dont,/* complain_on_overflow */
207 bfd_elf_generic_reloc, /* special_function */
208 "R_PPC64_ADDR16_LO", /* name */
b34976b6 209 FALSE, /* partial_inplace */
5bd4f169
AM
210 0, /* src_mask */
211 0xffff, /* dst_mask */
b34976b6 212 FALSE), /* pcrel_offset */
5bd4f169
AM
213
214 /* Bits 16-31 of an address. */
215 HOWTO (R_PPC64_ADDR16_HI, /* type */
216 16, /* rightshift */
217 1, /* size (0 = byte, 1 = short, 2 = long) */
218 16, /* bitsize */
b34976b6 219 FALSE, /* pc_relative */
5bd4f169
AM
220 0, /* bitpos */
221 complain_overflow_dont, /* complain_on_overflow */
222 bfd_elf_generic_reloc, /* special_function */
223 "R_PPC64_ADDR16_HI", /* name */
b34976b6 224 FALSE, /* partial_inplace */
5bd4f169
AM
225 0, /* src_mask */
226 0xffff, /* dst_mask */
b34976b6 227 FALSE), /* pcrel_offset */
5bd4f169
AM
228
229 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
230 bits, treated as a signed number, is negative. */
231 HOWTO (R_PPC64_ADDR16_HA, /* type */
232 16, /* rightshift */
233 1, /* size (0 = byte, 1 = short, 2 = long) */
234 16, /* bitsize */
b34976b6 235 FALSE, /* pc_relative */
5bd4f169
AM
236 0, /* bitpos */
237 complain_overflow_dont, /* complain_on_overflow */
805fc799 238 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 239 "R_PPC64_ADDR16_HA", /* name */
b34976b6 240 FALSE, /* partial_inplace */
5bd4f169
AM
241 0, /* src_mask */
242 0xffff, /* dst_mask */
b34976b6 243 FALSE), /* pcrel_offset */
5bd4f169
AM
244
245 /* An absolute 16 bit branch; the lower two bits must be zero.
246 FIXME: we don't check that, we just clear them. */
247 HOWTO (R_PPC64_ADDR14, /* type */
248 0, /* rightshift */
249 2, /* size (0 = byte, 1 = short, 2 = long) */
250 16, /* bitsize */
b34976b6 251 FALSE, /* pc_relative */
5bd4f169
AM
252 0, /* bitpos */
253 complain_overflow_bitfield, /* complain_on_overflow */
254 bfd_elf_generic_reloc, /* special_function */
255 "R_PPC64_ADDR14", /* name */
b34976b6 256 FALSE, /* partial_inplace */
d006db6c 257 0, /* src_mask */
f5e87a1d 258 0x0000fffc, /* dst_mask */
b34976b6 259 FALSE), /* pcrel_offset */
5bd4f169
AM
260
261 /* An absolute 16 bit branch, for which bit 10 should be set to
262 indicate that the branch is expected to be taken. The lower two
263 bits must be zero. */
264 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
265 0, /* rightshift */
266 2, /* size (0 = byte, 1 = short, 2 = long) */
267 16, /* bitsize */
b34976b6 268 FALSE, /* pc_relative */
5bd4f169
AM
269 0, /* bitpos */
270 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 271 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 272 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 273 FALSE, /* partial_inplace */
d006db6c 274 0, /* src_mask */
f5e87a1d 275 0x0000fffc, /* dst_mask */
b34976b6 276 FALSE), /* pcrel_offset */
5bd4f169
AM
277
278 /* An absolute 16 bit branch, for which bit 10 should be set to
279 indicate that the branch is not expected to be taken. The lower
280 two bits must be zero. */
281 HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */
282 0, /* rightshift */
283 2, /* size (0 = byte, 1 = short, 2 = long) */
284 16, /* bitsize */
b34976b6 285 FALSE, /* pc_relative */
5bd4f169
AM
286 0, /* bitpos */
287 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 288 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 289 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 290 FALSE, /* partial_inplace */
d006db6c 291 0, /* src_mask */
f5e87a1d 292 0x0000fffc, /* dst_mask */
b34976b6 293 FALSE), /* pcrel_offset */
5bd4f169
AM
294
295 /* A relative 26 bit branch; the lower two bits must be zero. */
296 HOWTO (R_PPC64_REL24, /* type */
297 0, /* rightshift */
298 2, /* size (0 = byte, 1 = short, 2 = long) */
299 26, /* bitsize */
b34976b6 300 TRUE, /* pc_relative */
5bd4f169
AM
301 0, /* bitpos */
302 complain_overflow_signed, /* complain_on_overflow */
303 bfd_elf_generic_reloc, /* special_function */
304 "R_PPC64_REL24", /* name */
b34976b6 305 FALSE, /* partial_inplace */
d006db6c 306 0, /* src_mask */
f5e87a1d 307 0x03fffffc, /* dst_mask */
b34976b6 308 TRUE), /* pcrel_offset */
5bd4f169
AM
309
310 /* A relative 16 bit branch; the lower two bits must be zero. */
311 HOWTO (R_PPC64_REL14, /* type */
312 0, /* rightshift */
313 2, /* size (0 = byte, 1 = short, 2 = long) */
314 16, /* bitsize */
b34976b6 315 TRUE, /* pc_relative */
5bd4f169
AM
316 0, /* bitpos */
317 complain_overflow_signed, /* complain_on_overflow */
318 bfd_elf_generic_reloc, /* special_function */
319 "R_PPC64_REL14", /* name */
b34976b6 320 FALSE, /* partial_inplace */
d006db6c 321 0, /* src_mask */
f5e87a1d 322 0x0000fffc, /* dst_mask */
b34976b6 323 TRUE), /* pcrel_offset */
5bd4f169
AM
324
325 /* A relative 16 bit branch. Bit 10 should be set to indicate that
326 the branch is expected to be taken. The lower two bits must be
327 zero. */
328 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
329 0, /* rightshift */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
331 16, /* bitsize */
b34976b6 332 TRUE, /* pc_relative */
5bd4f169
AM
333 0, /* bitpos */
334 complain_overflow_signed, /* complain_on_overflow */
805fc799 335 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 336 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 337 FALSE, /* partial_inplace */
d006db6c 338 0, /* src_mask */
f5e87a1d 339 0x0000fffc, /* dst_mask */
b34976b6 340 TRUE), /* pcrel_offset */
5bd4f169
AM
341
342 /* A relative 16 bit branch. Bit 10 should be set to indicate that
343 the branch is not expected to be taken. The lower two bits must
344 be zero. */
345 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 16, /* bitsize */
b34976b6 349 TRUE, /* pc_relative */
5bd4f169
AM
350 0, /* bitpos */
351 complain_overflow_signed, /* complain_on_overflow */
805fc799 352 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 353 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 354 FALSE, /* partial_inplace */
d006db6c 355 0, /* src_mask */
f5e87a1d 356 0x0000fffc, /* dst_mask */
b34976b6 357 TRUE), /* pcrel_offset */
5bd4f169
AM
358
359 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
360 symbol. */
361 HOWTO (R_PPC64_GOT16, /* type */
362 0, /* rightshift */
363 1, /* size (0 = byte, 1 = short, 2 = long) */
364 16, /* bitsize */
b34976b6 365 FALSE, /* pc_relative */
5bd4f169
AM
366 0, /* bitpos */
367 complain_overflow_signed, /* complain_on_overflow */
805fc799 368 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 369 "R_PPC64_GOT16", /* name */
b34976b6 370 FALSE, /* partial_inplace */
5bd4f169
AM
371 0, /* src_mask */
372 0xffff, /* dst_mask */
b34976b6 373 FALSE), /* pcrel_offset */
5bd4f169
AM
374
375 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
376 the symbol. */
377 HOWTO (R_PPC64_GOT16_LO, /* type */
378 0, /* rightshift */
379 1, /* size (0 = byte, 1 = short, 2 = long) */
380 16, /* bitsize */
b34976b6 381 FALSE, /* pc_relative */
5bd4f169
AM
382 0, /* bitpos */
383 complain_overflow_dont, /* complain_on_overflow */
805fc799 384 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 385 "R_PPC64_GOT16_LO", /* name */
b34976b6 386 FALSE, /* partial_inplace */
5bd4f169
AM
387 0, /* src_mask */
388 0xffff, /* dst_mask */
b34976b6 389 FALSE), /* pcrel_offset */
5bd4f169
AM
390
391 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
392 the symbol. */
393 HOWTO (R_PPC64_GOT16_HI, /* type */
394 16, /* rightshift */
395 1, /* size (0 = byte, 1 = short, 2 = long) */
396 16, /* bitsize */
b34976b6 397 FALSE, /* pc_relative */
5bd4f169
AM
398 0, /* bitpos */
399 complain_overflow_dont,/* complain_on_overflow */
805fc799 400 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 401 "R_PPC64_GOT16_HI", /* name */
b34976b6 402 FALSE, /* partial_inplace */
5bd4f169
AM
403 0, /* src_mask */
404 0xffff, /* dst_mask */
b34976b6 405 FALSE), /* pcrel_offset */
5bd4f169
AM
406
407 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
408 the symbol. */
409 HOWTO (R_PPC64_GOT16_HA, /* type */
410 16, /* 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_dont,/* complain_on_overflow */
805fc799 416 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 417 "R_PPC64_GOT16_HA", /* 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 /* This is used only by the dynamic linker. The symbol should exist
424 both in the object being run and in some shared library. The
425 dynamic linker copies the data addressed by the symbol from the
426 shared library into the object, because the object being
427 run has to have the data at some particular address. */
428 HOWTO (R_PPC64_COPY, /* type */
429 0, /* rightshift */
f5e87a1d
AM
430 0, /* this one is variable size */
431 0, /* bitsize */
b34976b6 432 FALSE, /* pc_relative */
5bd4f169 433 0, /* bitpos */
f5e87a1d
AM
434 complain_overflow_dont, /* complain_on_overflow */
435 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 436 "R_PPC64_COPY", /* name */
b34976b6 437 FALSE, /* partial_inplace */
5bd4f169
AM
438 0, /* src_mask */
439 0, /* dst_mask */
b34976b6 440 FALSE), /* pcrel_offset */
5bd4f169
AM
441
442 /* Like R_PPC64_ADDR64, but used when setting global offset table
443 entries. */
444 HOWTO (R_PPC64_GLOB_DAT, /* type */
445 0, /* rightshift */
446 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
447 64, /* bitsize */
b34976b6 448 FALSE, /* pc_relative */
5bd4f169
AM
449 0, /* bitpos */
450 complain_overflow_dont, /* complain_on_overflow */
805fc799 451 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 452 "R_PPC64_GLOB_DAT", /* name */
b34976b6 453 FALSE, /* partial_inplace */
5bd4f169 454 0, /* src_mask */
f5e87a1d 455 ONES (64), /* dst_mask */
b34976b6 456 FALSE), /* pcrel_offset */
5bd4f169
AM
457
458 /* Created by the link editor. Marks a procedure linkage table
459 entry for a symbol. */
460 HOWTO (R_PPC64_JMP_SLOT, /* type */
461 0, /* rightshift */
462 0, /* size (0 = byte, 1 = short, 2 = long) */
463 0, /* bitsize */
b34976b6 464 FALSE, /* pc_relative */
5bd4f169
AM
465 0, /* bitpos */
466 complain_overflow_dont, /* complain_on_overflow */
805fc799 467 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 468 "R_PPC64_JMP_SLOT", /* name */
b34976b6 469 FALSE, /* partial_inplace */
5bd4f169
AM
470 0, /* src_mask */
471 0, /* dst_mask */
b34976b6 472 FALSE), /* pcrel_offset */
5bd4f169
AM
473
474 /* Used only by the dynamic linker. When the object is run, this
475 doubleword64 is set to the load address of the object, plus the
476 addend. */
477 HOWTO (R_PPC64_RELATIVE, /* type */
478 0, /* rightshift */
479 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
480 64, /* bitsize */
b34976b6 481 FALSE, /* pc_relative */
5bd4f169
AM
482 0, /* bitpos */
483 complain_overflow_dont, /* complain_on_overflow */
484 bfd_elf_generic_reloc, /* special_function */
485 "R_PPC64_RELATIVE", /* name */
b34976b6 486 FALSE, /* partial_inplace */
5bd4f169 487 0, /* src_mask */
f5e87a1d 488 ONES (64), /* dst_mask */
b34976b6 489 FALSE), /* pcrel_offset */
5bd4f169
AM
490
491 /* Like R_PPC64_ADDR32, but may be unaligned. */
492 HOWTO (R_PPC64_UADDR32, /* type */
493 0, /* rightshift */
494 2, /* size (0 = byte, 1 = short, 2 = long) */
495 32, /* bitsize */
b34976b6 496 FALSE, /* pc_relative */
5bd4f169
AM
497 0, /* bitpos */
498 complain_overflow_bitfield, /* complain_on_overflow */
499 bfd_elf_generic_reloc, /* special_function */
500 "R_PPC64_UADDR32", /* name */
b34976b6 501 FALSE, /* partial_inplace */
5bd4f169
AM
502 0, /* src_mask */
503 0xffffffff, /* dst_mask */
b34976b6 504 FALSE), /* pcrel_offset */
5bd4f169
AM
505
506 /* Like R_PPC64_ADDR16, but may be unaligned. */
507 HOWTO (R_PPC64_UADDR16, /* type */
508 0, /* rightshift */
509 1, /* size (0 = byte, 1 = short, 2 = long) */
510 16, /* bitsize */
b34976b6 511 FALSE, /* pc_relative */
5bd4f169
AM
512 0, /* bitpos */
513 complain_overflow_bitfield, /* complain_on_overflow */
514 bfd_elf_generic_reloc, /* special_function */
515 "R_PPC64_UADDR16", /* name */
b34976b6 516 FALSE, /* partial_inplace */
5bd4f169
AM
517 0, /* src_mask */
518 0xffff, /* dst_mask */
b34976b6 519 FALSE), /* pcrel_offset */
5bd4f169
AM
520
521 /* 32-bit PC relative. */
522 HOWTO (R_PPC64_REL32, /* type */
523 0, /* rightshift */
524 2, /* size (0 = byte, 1 = short, 2 = long) */
525 32, /* bitsize */
b34976b6 526 TRUE, /* pc_relative */
5bd4f169 527 0, /* bitpos */
cedb70c5 528 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM
529 complain_overflow_signed, /* complain_on_overflow */
530 bfd_elf_generic_reloc, /* special_function */
531 "R_PPC64_REL32", /* name */
b34976b6 532 FALSE, /* partial_inplace */
5bd4f169
AM
533 0, /* src_mask */
534 0xffffffff, /* dst_mask */
b34976b6 535 TRUE), /* pcrel_offset */
5bd4f169 536
10ed1bba 537 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM
538 HOWTO (R_PPC64_PLT32, /* type */
539 0, /* rightshift */
540 2, /* size (0 = byte, 1 = short, 2 = long) */
541 32, /* bitsize */
b34976b6 542 FALSE, /* pc_relative */
5bd4f169
AM
543 0, /* bitpos */
544 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 545 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 546 "R_PPC64_PLT32", /* name */
b34976b6 547 FALSE, /* partial_inplace */
5bd4f169 548 0, /* src_mask */
f5e87a1d 549 0xffffffff, /* dst_mask */
b34976b6 550 FALSE), /* pcrel_offset */
5bd4f169
AM
551
552 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
553 FIXME: R_PPC64_PLTREL32 not supported. */
554 HOWTO (R_PPC64_PLTREL32, /* type */
555 0, /* rightshift */
556 2, /* size (0 = byte, 1 = short, 2 = long) */
557 32, /* bitsize */
b34976b6 558 TRUE, /* pc_relative */
5bd4f169
AM
559 0, /* bitpos */
560 complain_overflow_signed, /* complain_on_overflow */
561 bfd_elf_generic_reloc, /* special_function */
562 "R_PPC64_PLTREL32", /* name */
b34976b6 563 FALSE, /* partial_inplace */
5bd4f169 564 0, /* src_mask */
f5e87a1d 565 0xffffffff, /* dst_mask */
b34976b6 566 TRUE), /* pcrel_offset */
5bd4f169
AM
567
568 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
569 the symbol. */
570 HOWTO (R_PPC64_PLT16_LO, /* type */
571 0, /* rightshift */
572 1, /* size (0 = byte, 1 = short, 2 = long) */
573 16, /* bitsize */
b34976b6 574 FALSE, /* pc_relative */
5bd4f169
AM
575 0, /* bitpos */
576 complain_overflow_dont, /* complain_on_overflow */
805fc799 577 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 578 "R_PPC64_PLT16_LO", /* name */
b34976b6 579 FALSE, /* partial_inplace */
5bd4f169
AM
580 0, /* src_mask */
581 0xffff, /* dst_mask */
b34976b6 582 FALSE), /* pcrel_offset */
5bd4f169
AM
583
584 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
585 the symbol. */
586 HOWTO (R_PPC64_PLT16_HI, /* type */
587 16, /* rightshift */
588 1, /* size (0 = byte, 1 = short, 2 = long) */
589 16, /* bitsize */
b34976b6 590 FALSE, /* pc_relative */
5bd4f169
AM
591 0, /* bitpos */
592 complain_overflow_dont, /* complain_on_overflow */
805fc799 593 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 594 "R_PPC64_PLT16_HI", /* name */
b34976b6 595 FALSE, /* partial_inplace */
5bd4f169
AM
596 0, /* src_mask */
597 0xffff, /* dst_mask */
b34976b6 598 FALSE), /* pcrel_offset */
5bd4f169
AM
599
600 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
601 the symbol. */
602 HOWTO (R_PPC64_PLT16_HA, /* type */
603 16, /* rightshift */
604 1, /* size (0 = byte, 1 = short, 2 = long) */
605 16, /* bitsize */
b34976b6 606 FALSE, /* pc_relative */
5bd4f169
AM
607 0, /* bitpos */
608 complain_overflow_dont, /* complain_on_overflow */
805fc799 609 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 610 "R_PPC64_PLT16_HA", /* name */
b34976b6 611 FALSE, /* partial_inplace */
5bd4f169
AM
612 0, /* src_mask */
613 0xffff, /* dst_mask */
b34976b6 614 FALSE), /* pcrel_offset */
5bd4f169 615
c061c2d8 616 /* 16-bit section relative relocation. */
5bd4f169
AM
617 HOWTO (R_PPC64_SECTOFF, /* type */
618 0, /* rightshift */
c061c2d8
AM
619 1, /* size (0 = byte, 1 = short, 2 = long) */
620 16, /* bitsize */
b34976b6 621 FALSE, /* pc_relative */
5bd4f169
AM
622 0, /* bitpos */
623 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 624 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 625 "R_PPC64_SECTOFF", /* name */
b34976b6 626 FALSE, /* partial_inplace */
5bd4f169 627 0, /* src_mask */
c061c2d8 628 0xffff, /* dst_mask */
b34976b6 629 FALSE), /* pcrel_offset */
5bd4f169 630
c061c2d8 631 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM
632 HOWTO (R_PPC64_SECTOFF_LO, /* type */
633 0, /* rightshift */
634 1, /* size (0 = byte, 1 = short, 2 = long) */
635 16, /* bitsize */
b34976b6 636 FALSE, /* pc_relative */
5bd4f169
AM
637 0, /* bitpos */
638 complain_overflow_dont, /* complain_on_overflow */
805fc799 639 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 640 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 641 FALSE, /* partial_inplace */
5bd4f169
AM
642 0, /* src_mask */
643 0xffff, /* dst_mask */
b34976b6 644 FALSE), /* pcrel_offset */
5bd4f169
AM
645
646 /* 16-bit upper half section relative relocation. */
647 HOWTO (R_PPC64_SECTOFF_HI, /* type */
648 16, /* rightshift */
649 1, /* size (0 = byte, 1 = short, 2 = long) */
650 16, /* bitsize */
b34976b6 651 FALSE, /* pc_relative */
5bd4f169
AM
652 0, /* bitpos */
653 complain_overflow_dont, /* complain_on_overflow */
805fc799 654 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 655 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 656 FALSE, /* partial_inplace */
5bd4f169
AM
657 0, /* src_mask */
658 0xffff, /* dst_mask */
b34976b6 659 FALSE), /* pcrel_offset */
5bd4f169
AM
660
661 /* 16-bit upper half adjusted section relative relocation. */
662 HOWTO (R_PPC64_SECTOFF_HA, /* type */
663 16, /* rightshift */
664 1, /* size (0 = byte, 1 = short, 2 = long) */
665 16, /* bitsize */
b34976b6 666 FALSE, /* pc_relative */
5bd4f169
AM
667 0, /* bitpos */
668 complain_overflow_dont, /* complain_on_overflow */
805fc799 669 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 670 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 671 FALSE, /* partial_inplace */
5bd4f169
AM
672 0, /* src_mask */
673 0xffff, /* dst_mask */
b34976b6 674 FALSE), /* pcrel_offset */
5bd4f169 675
04c9666a
AM
676 /* Like R_PPC64_REL24 without touching the two least significant bits. */
677 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM
678 2, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 30, /* bitsize */
b34976b6 681 TRUE, /* pc_relative */
5bd4f169
AM
682 0, /* bitpos */
683 complain_overflow_dont, /* complain_on_overflow */
684 bfd_elf_generic_reloc, /* special_function */
04c9666a 685 "R_PPC64_REL30", /* name */
b34976b6 686 FALSE, /* partial_inplace */
d006db6c 687 0, /* src_mask */
5bd4f169 688 0xfffffffc, /* dst_mask */
b34976b6 689 TRUE), /* pcrel_offset */
5bd4f169
AM
690
691 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
692
693 /* A standard 64-bit relocation. */
694 HOWTO (R_PPC64_ADDR64, /* type */
695 0, /* rightshift */
696 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
697 64, /* bitsize */
b34976b6 698 FALSE, /* pc_relative */
5bd4f169
AM
699 0, /* bitpos */
700 complain_overflow_dont, /* complain_on_overflow */
701 bfd_elf_generic_reloc, /* special_function */
702 "R_PPC64_ADDR64", /* name */
b34976b6 703 FALSE, /* partial_inplace */
5bd4f169 704 0, /* src_mask */
f5e87a1d 705 ONES (64), /* dst_mask */
b34976b6 706 FALSE), /* pcrel_offset */
5bd4f169
AM
707
708 /* The bits 32-47 of an address. */
709 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
710 32, /* rightshift */
711 1, /* size (0 = byte, 1 = short, 2 = long) */
712 16, /* bitsize */
b34976b6 713 FALSE, /* pc_relative */
5bd4f169
AM
714 0, /* bitpos */
715 complain_overflow_dont, /* complain_on_overflow */
716 bfd_elf_generic_reloc, /* special_function */
717 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 718 FALSE, /* partial_inplace */
5bd4f169
AM
719 0, /* src_mask */
720 0xffff, /* dst_mask */
b34976b6 721 FALSE), /* pcrel_offset */
5bd4f169
AM
722
723 /* The bits 32-47 of an address, plus 1 if the contents of the low
724 16 bits, treated as a signed number, is negative. */
725 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
726 32, /* rightshift */
727 1, /* size (0 = byte, 1 = short, 2 = long) */
728 16, /* bitsize */
b34976b6 729 FALSE, /* pc_relative */
5bd4f169
AM
730 0, /* bitpos */
731 complain_overflow_dont, /* complain_on_overflow */
805fc799 732 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 733 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 734 FALSE, /* partial_inplace */
5bd4f169
AM
735 0, /* src_mask */
736 0xffff, /* dst_mask */
b34976b6 737 FALSE), /* pcrel_offset */
5bd4f169
AM
738
739 /* The bits 48-63 of an address. */
740 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
741 48, /* rightshift */
742 1, /* size (0 = byte, 1 = short, 2 = long) */
743 16, /* bitsize */
b34976b6 744 FALSE, /* pc_relative */
5bd4f169
AM
745 0, /* bitpos */
746 complain_overflow_dont, /* complain_on_overflow */
747 bfd_elf_generic_reloc, /* special_function */
748 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 749 FALSE, /* partial_inplace */
5bd4f169
AM
750 0, /* src_mask */
751 0xffff, /* dst_mask */
b34976b6 752 FALSE), /* pcrel_offset */
5bd4f169
AM
753
754 /* The bits 48-63 of an address, plus 1 if the contents of the low
755 16 bits, treated as a signed number, is negative. */
756 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
757 48, /* rightshift */
758 1, /* size (0 = byte, 1 = short, 2 = long) */
759 16, /* bitsize */
b34976b6 760 FALSE, /* pc_relative */
5bd4f169
AM
761 0, /* bitpos */
762 complain_overflow_dont, /* complain_on_overflow */
805fc799 763 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 764 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 765 FALSE, /* partial_inplace */
5bd4f169
AM
766 0, /* src_mask */
767 0xffff, /* dst_mask */
b34976b6 768 FALSE), /* pcrel_offset */
5bd4f169
AM
769
770 /* Like ADDR64, but may be unaligned. */
771 HOWTO (R_PPC64_UADDR64, /* type */
772 0, /* rightshift */
773 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
774 64, /* bitsize */
b34976b6 775 FALSE, /* pc_relative */
5bd4f169
AM
776 0, /* bitpos */
777 complain_overflow_dont, /* complain_on_overflow */
778 bfd_elf_generic_reloc, /* special_function */
779 "R_PPC64_UADDR64", /* name */
b34976b6 780 FALSE, /* partial_inplace */
5bd4f169 781 0, /* src_mask */
f5e87a1d 782 ONES (64), /* dst_mask */
b34976b6 783 FALSE), /* pcrel_offset */
5bd4f169
AM
784
785 /* 64-bit relative relocation. */
786 HOWTO (R_PPC64_REL64, /* type */
787 0, /* rightshift */
788 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
789 64, /* bitsize */
b34976b6 790 TRUE, /* pc_relative */
5bd4f169
AM
791 0, /* bitpos */
792 complain_overflow_dont, /* complain_on_overflow */
793 bfd_elf_generic_reloc, /* special_function */
794 "R_PPC64_REL64", /* name */
b34976b6 795 FALSE, /* partial_inplace */
5bd4f169 796 0, /* src_mask */
f5e87a1d 797 ONES (64), /* dst_mask */
b34976b6 798 TRUE), /* pcrel_offset */
5bd4f169 799
cedb70c5 800 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM
801 HOWTO (R_PPC64_PLT64, /* type */
802 0, /* rightshift */
803 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
804 64, /* bitsize */
b34976b6 805 FALSE, /* pc_relative */
5bd4f169
AM
806 0, /* bitpos */
807 complain_overflow_dont, /* complain_on_overflow */
805fc799 808 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 809 "R_PPC64_PLT64", /* name */
b34976b6 810 FALSE, /* partial_inplace */
5bd4f169 811 0, /* src_mask */
f5e87a1d 812 ONES (64), /* dst_mask */
b34976b6 813 FALSE), /* pcrel_offset */
5bd4f169
AM
814
815 /* 64-bit PC relative relocation to the symbol's procedure linkage
816 table. */
817 /* FIXME: R_PPC64_PLTREL64 not supported. */
818 HOWTO (R_PPC64_PLTREL64, /* type */
819 0, /* rightshift */
820 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
821 64, /* bitsize */
b34976b6 822 TRUE, /* pc_relative */
5bd4f169
AM
823 0, /* bitpos */
824 complain_overflow_dont, /* complain_on_overflow */
805fc799 825 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 826 "R_PPC64_PLTREL64", /* name */
b34976b6 827 FALSE, /* partial_inplace */
5bd4f169 828 0, /* src_mask */
f5e87a1d 829 ONES (64), /* dst_mask */
b34976b6 830 TRUE), /* pcrel_offset */
5bd4f169
AM
831
832 /* 16 bit TOC-relative relocation. */
833
834 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
835 HOWTO (R_PPC64_TOC16, /* type */
836 0, /* rightshift */
837 1, /* size (0 = byte, 1 = short, 2 = long) */
838 16, /* bitsize */
b34976b6 839 FALSE, /* pc_relative */
5bd4f169
AM
840 0, /* bitpos */
841 complain_overflow_signed, /* complain_on_overflow */
805fc799 842 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 843 "R_PPC64_TOC16", /* name */
b34976b6 844 FALSE, /* partial_inplace */
5bd4f169
AM
845 0, /* src_mask */
846 0xffff, /* dst_mask */
b34976b6 847 FALSE), /* pcrel_offset */
5bd4f169
AM
848
849 /* 16 bit TOC-relative relocation without overflow. */
850
851 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
852 HOWTO (R_PPC64_TOC16_LO, /* type */
853 0, /* rightshift */
854 1, /* size (0 = byte, 1 = short, 2 = long) */
855 16, /* bitsize */
b34976b6 856 FALSE, /* pc_relative */
5bd4f169
AM
857 0, /* bitpos */
858 complain_overflow_dont, /* complain_on_overflow */
805fc799 859 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 860 "R_PPC64_TOC16_LO", /* name */
b34976b6 861 FALSE, /* partial_inplace */
5bd4f169
AM
862 0, /* src_mask */
863 0xffff, /* dst_mask */
b34976b6 864 FALSE), /* pcrel_offset */
5bd4f169
AM
865
866 /* 16 bit TOC-relative relocation, high 16 bits. */
867
868 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
869 HOWTO (R_PPC64_TOC16_HI, /* type */
870 16, /* rightshift */
871 1, /* size (0 = byte, 1 = short, 2 = long) */
872 16, /* bitsize */
b34976b6 873 FALSE, /* pc_relative */
5bd4f169
AM
874 0, /* bitpos */
875 complain_overflow_dont, /* complain_on_overflow */
805fc799 876 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 877 "R_PPC64_TOC16_HI", /* name */
b34976b6 878 FALSE, /* partial_inplace */
5bd4f169
AM
879 0, /* src_mask */
880 0xffff, /* dst_mask */
b34976b6 881 FALSE), /* pcrel_offset */
5bd4f169
AM
882
883 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
884 contents of the low 16 bits, treated as a signed number, is
885 negative. */
886
887 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
888 HOWTO (R_PPC64_TOC16_HA, /* type */
889 16, /* rightshift */
890 1, /* size (0 = byte, 1 = short, 2 = long) */
891 16, /* bitsize */
b34976b6 892 FALSE, /* pc_relative */
5bd4f169
AM
893 0, /* bitpos */
894 complain_overflow_dont, /* complain_on_overflow */
805fc799 895 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 896 "R_PPC64_TOC16_HA", /* name */
b34976b6 897 FALSE, /* partial_inplace */
5bd4f169
AM
898 0, /* src_mask */
899 0xffff, /* dst_mask */
b34976b6 900 FALSE), /* pcrel_offset */
5bd4f169
AM
901
902 /* 64-bit relocation; insert value of TOC base (.TOC.). */
903
904 /* R_PPC64_TOC 51 doubleword64 .TOC. */
905 HOWTO (R_PPC64_TOC, /* type */
906 0, /* rightshift */
907 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
908 64, /* bitsize */
b34976b6 909 FALSE, /* pc_relative */
5bd4f169
AM
910 0, /* bitpos */
911 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 912 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 913 "R_PPC64_TOC", /* name */
b34976b6 914 FALSE, /* partial_inplace */
5bd4f169 915 0, /* src_mask */
f5e87a1d 916 ONES (64), /* dst_mask */
b34976b6 917 FALSE), /* pcrel_offset */
5bd4f169
AM
918
919 /* Like R_PPC64_GOT16, but also informs the link editor that the
920 value to relocate may (!) refer to a PLT entry which the link
921 editor (a) may replace with the symbol value. If the link editor
922 is unable to fully resolve the symbol, it may (b) create a PLT
923 entry and store the address to the new PLT entry in the GOT.
924 This permits lazy resolution of function symbols at run time.
925 The link editor may also skip all of this and just (c) emit a
926 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
927 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
928 HOWTO (R_PPC64_PLTGOT16, /* type */
929 0, /* rightshift */
930 1, /* size (0 = byte, 1 = short, 2 = long) */
931 16, /* bitsize */
b34976b6 932 FALSE, /* pc_relative */
5bd4f169
AM
933 0, /* bitpos */
934 complain_overflow_signed, /* complain_on_overflow */
805fc799 935 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM
936 "R_PPC64_PLTGOT16", /* name */
937 FALSE, /* partial_inplace */
938 0, /* src_mask */
939 0xffff, /* dst_mask */
940 FALSE), /* pcrel_offset */
941
942 /* Like R_PPC64_PLTGOT16, but without overflow. */
943 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
944 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
945 0, /* rightshift */
946 1, /* size (0 = byte, 1 = short, 2 = long) */
947 16, /* bitsize */
948 FALSE, /* pc_relative */
949 0, /* bitpos */
950 complain_overflow_dont, /* complain_on_overflow */
951 ppc64_elf_unhandled_reloc, /* special_function */
952 "R_PPC64_PLTGOT16_LO", /* name */
953 FALSE, /* partial_inplace */
954 0, /* src_mask */
955 0xffff, /* dst_mask */
956 FALSE), /* pcrel_offset */
957
958 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
959 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
960 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
961 16, /* rightshift */
962 1, /* size (0 = byte, 1 = short, 2 = long) */
963 16, /* bitsize */
964 FALSE, /* pc_relative */
965 0, /* bitpos */
966 complain_overflow_dont, /* complain_on_overflow */
967 ppc64_elf_unhandled_reloc, /* special_function */
968 "R_PPC64_PLTGOT16_HI", /* name */
969 FALSE, /* partial_inplace */
970 0, /* src_mask */
971 0xffff, /* dst_mask */
972 FALSE), /* pcrel_offset */
973
974 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
975 1 if the contents of the low 16 bits, treated as a signed number,
976 is negative. */
977 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
978 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
979 16, /* rightshift */
980 1, /* size (0 = byte, 1 = short, 2 = long) */
981 16, /* bitsize */
982 FALSE, /* pc_relative */
983 0, /* bitpos */
984 complain_overflow_dont,/* complain_on_overflow */
985 ppc64_elf_unhandled_reloc, /* special_function */
986 "R_PPC64_PLTGOT16_HA", /* name */
987 FALSE, /* partial_inplace */
988 0, /* src_mask */
989 0xffff, /* dst_mask */
990 FALSE), /* pcrel_offset */
991
992 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
993 HOWTO (R_PPC64_ADDR16_DS, /* type */
994 0, /* rightshift */
995 1, /* size (0 = byte, 1 = short, 2 = long) */
996 16, /* bitsize */
997 FALSE, /* pc_relative */
998 0, /* bitpos */
999 complain_overflow_bitfield, /* complain_on_overflow */
1000 bfd_elf_generic_reloc, /* special_function */
1001 "R_PPC64_ADDR16_DS", /* name */
1002 FALSE, /* partial_inplace */
1003 0, /* src_mask */
1004 0xfffc, /* dst_mask */
1005 FALSE), /* pcrel_offset */
1006
1007 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1008 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1009 0, /* 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 bfd_elf_generic_reloc, /* special_function */
1016 "R_PPC64_ADDR16_LO_DS",/* name */
1017 FALSE, /* partial_inplace */
1018 0, /* src_mask */
1019 0xfffc, /* dst_mask */
1020 FALSE), /* pcrel_offset */
1021
1022 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1023 HOWTO (R_PPC64_GOT16_DS, /* type */
1024 0, /* rightshift */
1025 1, /* size (0 = byte, 1 = short, 2 = long) */
1026 16, /* bitsize */
1027 FALSE, /* pc_relative */
1028 0, /* bitpos */
1029 complain_overflow_signed, /* complain_on_overflow */
1030 ppc64_elf_unhandled_reloc, /* special_function */
1031 "R_PPC64_GOT16_DS", /* name */
1032 FALSE, /* partial_inplace */
1033 0, /* src_mask */
1034 0xfffc, /* dst_mask */
1035 FALSE), /* pcrel_offset */
1036
1037 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1038 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1039 0, /* rightshift */
1040 1, /* size (0 = byte, 1 = short, 2 = long) */
1041 16, /* bitsize */
1042 FALSE, /* pc_relative */
1043 0, /* bitpos */
1044 complain_overflow_dont, /* complain_on_overflow */
1045 ppc64_elf_unhandled_reloc, /* special_function */
1046 "R_PPC64_GOT16_LO_DS", /* name */
1047 FALSE, /* partial_inplace */
1048 0, /* src_mask */
1049 0xfffc, /* dst_mask */
1050 FALSE), /* pcrel_offset */
1051
1052 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1053 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1054 0, /* rightshift */
1055 1, /* size (0 = byte, 1 = short, 2 = long) */
1056 16, /* bitsize */
1057 FALSE, /* pc_relative */
1058 0, /* bitpos */
1059 complain_overflow_dont, /* complain_on_overflow */
1060 ppc64_elf_unhandled_reloc, /* special_function */
1061 "R_PPC64_PLT16_LO_DS", /* name */
1062 FALSE, /* partial_inplace */
1063 0, /* src_mask */
1064 0xfffc, /* dst_mask */
1065 FALSE), /* pcrel_offset */
1066
1067 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1068 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1069 0, /* rightshift */
1070 1, /* size (0 = byte, 1 = short, 2 = long) */
1071 16, /* bitsize */
1072 FALSE, /* pc_relative */
1073 0, /* bitpos */
1074 complain_overflow_bitfield, /* complain_on_overflow */
1075 ppc64_elf_sectoff_reloc, /* special_function */
1076 "R_PPC64_SECTOFF_DS", /* name */
1077 FALSE, /* partial_inplace */
1078 0, /* src_mask */
1079 0xfffc, /* dst_mask */
1080 FALSE), /* pcrel_offset */
1081
1082 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1083 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1084 0, /* rightshift */
1085 1, /* size (0 = byte, 1 = short, 2 = long) */
1086 16, /* bitsize */
1087 FALSE, /* pc_relative */
1088 0, /* bitpos */
1089 complain_overflow_dont, /* complain_on_overflow */
1090 ppc64_elf_sectoff_reloc, /* special_function */
1091 "R_PPC64_SECTOFF_LO_DS",/* name */
1092 FALSE, /* partial_inplace */
1093 0, /* src_mask */
1094 0xfffc, /* dst_mask */
1095 FALSE), /* pcrel_offset */
1096
1097 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1098 HOWTO (R_PPC64_TOC16_DS, /* type */
1099 0, /* rightshift */
1100 1, /* size (0 = byte, 1 = short, 2 = long) */
1101 16, /* bitsize */
1102 FALSE, /* pc_relative */
1103 0, /* bitpos */
1104 complain_overflow_signed, /* complain_on_overflow */
1105 ppc64_elf_toc_reloc, /* special_function */
1106 "R_PPC64_TOC16_DS", /* name */
1107 FALSE, /* partial_inplace */
1108 0, /* src_mask */
1109 0xfffc, /* dst_mask */
1110 FALSE), /* pcrel_offset */
1111
1112 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1113 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1114 0, /* rightshift */
1115 1, /* size (0 = byte, 1 = short, 2 = long) */
1116 16, /* bitsize */
1117 FALSE, /* pc_relative */
1118 0, /* bitpos */
1119 complain_overflow_dont, /* complain_on_overflow */
1120 ppc64_elf_toc_reloc, /* special_function */
1121 "R_PPC64_TOC16_LO_DS", /* name */
1122 FALSE, /* partial_inplace */
1123 0, /* src_mask */
1124 0xfffc, /* dst_mask */
1125 FALSE), /* pcrel_offset */
1126
1127 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1128 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1129 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1130 0, /* rightshift */
1131 1, /* size (0 = byte, 1 = short, 2 = long) */
1132 16, /* bitsize */
1133 FALSE, /* pc_relative */
1134 0, /* bitpos */
1135 complain_overflow_signed, /* complain_on_overflow */
1136 ppc64_elf_unhandled_reloc, /* special_function */
1137 "R_PPC64_PLTGOT16_DS", /* name */
1138 FALSE, /* partial_inplace */
1139 0, /* src_mask */
1140 0xfffc, /* dst_mask */
1141 FALSE), /* pcrel_offset */
1142
1143 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1144 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1145 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1146 0, /* rightshift */
1147 1, /* size (0 = byte, 1 = short, 2 = long) */
1148 16, /* bitsize */
1149 FALSE, /* pc_relative */
1150 0, /* bitpos */
1151 complain_overflow_dont, /* complain_on_overflow */
1152 ppc64_elf_unhandled_reloc, /* special_function */
1153 "R_PPC64_PLTGOT16_LO_DS",/* name */
1154 FALSE, /* partial_inplace */
1155 0, /* src_mask */
1156 0xfffc, /* dst_mask */
1157 FALSE), /* pcrel_offset */
1158
1159 /* Marker reloc for TLS. */
1160 HOWTO (R_PPC64_TLS,
1161 0, /* rightshift */
1162 2, /* size (0 = byte, 1 = short, 2 = long) */
1163 32, /* bitsize */
1164 FALSE, /* pc_relative */
1165 0, /* bitpos */
1166 complain_overflow_dont, /* complain_on_overflow */
1167 bfd_elf_generic_reloc, /* special_function */
1168 "R_PPC64_TLS", /* name */
1169 FALSE, /* partial_inplace */
1170 0, /* src_mask */
1171 0, /* dst_mask */
1172 FALSE), /* pcrel_offset */
1173
1174 /* Computes the load module index of the load module that contains the
1175 definition of its TLS sym. */
1176 HOWTO (R_PPC64_DTPMOD64,
1177 0, /* rightshift */
1178 4, /* size (0 = byte, 1 = short, 2 = long) */
1179 64, /* bitsize */
1180 FALSE, /* pc_relative */
1181 0, /* bitpos */
1182 complain_overflow_dont, /* complain_on_overflow */
1183 ppc64_elf_unhandled_reloc, /* special_function */
1184 "R_PPC64_DTPMOD64", /* name */
1185 FALSE, /* partial_inplace */
1186 0, /* src_mask */
1187 ONES (64), /* dst_mask */
1188 FALSE), /* pcrel_offset */
1189
1190 /* Computes a dtv-relative displacement, the difference between the value
1191 of sym+add and the base address of the thread-local storage block that
1192 contains the definition of sym, minus 0x8000. */
1193 HOWTO (R_PPC64_DTPREL64,
1194 0, /* rightshift */
1195 4, /* size (0 = byte, 1 = short, 2 = long) */
1196 64, /* 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_DTPREL64", /* name */
1202 FALSE, /* partial_inplace */
1203 0, /* src_mask */
1204 ONES (64), /* dst_mask */
1205 FALSE), /* pcrel_offset */
1206
1207 /* A 16 bit dtprel reloc. */
1208 HOWTO (R_PPC64_DTPREL16,
1209 0, /* rightshift */
1210 1, /* size (0 = byte, 1 = short, 2 = long) */
1211 16, /* bitsize */
1212 FALSE, /* pc_relative */
1213 0, /* bitpos */
1214 complain_overflow_signed, /* complain_on_overflow */
1215 ppc64_elf_unhandled_reloc, /* special_function */
1216 "R_PPC64_DTPREL16", /* name */
1217 FALSE, /* partial_inplace */
1218 0, /* src_mask */
1219 0xffff, /* dst_mask */
1220 FALSE), /* pcrel_offset */
1221
1222 /* Like DTPREL16, but no overflow. */
1223 HOWTO (R_PPC64_DTPREL16_LO,
1224 0, /* rightshift */
1225 1, /* size (0 = byte, 1 = short, 2 = long) */
1226 16, /* bitsize */
1227 FALSE, /* pc_relative */
1228 0, /* bitpos */
1229 complain_overflow_dont, /* complain_on_overflow */
1230 ppc64_elf_unhandled_reloc, /* special_function */
1231 "R_PPC64_DTPREL16_LO", /* name */
1232 FALSE, /* partial_inplace */
1233 0, /* src_mask */
1234 0xffff, /* dst_mask */
1235 FALSE), /* pcrel_offset */
1236
1237 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1238 HOWTO (R_PPC64_DTPREL16_HI,
1239 16, /* rightshift */
1240 1, /* size (0 = byte, 1 = short, 2 = long) */
1241 16, /* bitsize */
1242 FALSE, /* pc_relative */
1243 0, /* bitpos */
1244 complain_overflow_dont, /* complain_on_overflow */
1245 ppc64_elf_unhandled_reloc, /* special_function */
1246 "R_PPC64_DTPREL16_HI", /* name */
1247 FALSE, /* partial_inplace */
1248 0, /* src_mask */
1249 0xffff, /* dst_mask */
1250 FALSE), /* pcrel_offset */
1251
1252 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1253 HOWTO (R_PPC64_DTPREL16_HA,
1254 16, /* rightshift */
1255 1, /* size (0 = byte, 1 = short, 2 = long) */
1256 16, /* bitsize */
1257 FALSE, /* pc_relative */
1258 0, /* bitpos */
1259 complain_overflow_dont, /* complain_on_overflow */
1260 ppc64_elf_unhandled_reloc, /* special_function */
1261 "R_PPC64_DTPREL16_HA", /* name */
1262 FALSE, /* partial_inplace */
1263 0, /* src_mask */
1264 0xffff, /* dst_mask */
1265 FALSE), /* pcrel_offset */
1266
1267 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1268 HOWTO (R_PPC64_DTPREL16_HIGHER,
1269 32, /* rightshift */
1270 1, /* size (0 = byte, 1 = short, 2 = long) */
1271 16, /* bitsize */
1272 FALSE, /* pc_relative */
1273 0, /* bitpos */
1274 complain_overflow_dont, /* complain_on_overflow */
1275 ppc64_elf_unhandled_reloc, /* special_function */
1276 "R_PPC64_DTPREL16_HIGHER", /* name */
1277 FALSE, /* partial_inplace */
1278 0, /* src_mask */
1279 0xffff, /* dst_mask */
1280 FALSE), /* pcrel_offset */
1281
1282 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1283 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1284 32, /* rightshift */
1285 1, /* size (0 = byte, 1 = short, 2 = long) */
1286 16, /* bitsize */
1287 FALSE, /* pc_relative */
1288 0, /* bitpos */
1289 complain_overflow_dont, /* complain_on_overflow */
1290 ppc64_elf_unhandled_reloc, /* special_function */
1291 "R_PPC64_DTPREL16_HIGHERA", /* name */
1292 FALSE, /* partial_inplace */
1293 0, /* src_mask */
1294 0xffff, /* dst_mask */
1295 FALSE), /* pcrel_offset */
1296
1297 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1298 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1299 48, /* rightshift */
1300 1, /* size (0 = byte, 1 = short, 2 = long) */
1301 16, /* bitsize */
1302 FALSE, /* pc_relative */
1303 0, /* bitpos */
1304 complain_overflow_dont, /* complain_on_overflow */
1305 ppc64_elf_unhandled_reloc, /* special_function */
1306 "R_PPC64_DTPREL16_HIGHEST", /* name */
1307 FALSE, /* partial_inplace */
1308 0, /* src_mask */
1309 0xffff, /* dst_mask */
1310 FALSE), /* pcrel_offset */
1311
1312 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1313 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1314 48, /* rightshift */
1315 1, /* size (0 = byte, 1 = short, 2 = long) */
1316 16, /* bitsize */
1317 FALSE, /* pc_relative */
1318 0, /* bitpos */
1319 complain_overflow_dont, /* complain_on_overflow */
1320 ppc64_elf_unhandled_reloc, /* special_function */
1321 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1322 FALSE, /* partial_inplace */
1323 0, /* src_mask */
1324 0xffff, /* dst_mask */
1325 FALSE), /* pcrel_offset */
1326
1327 /* Like DTPREL16, but for insns with a DS field. */
1328 HOWTO (R_PPC64_DTPREL16_DS,
1329 0, /* rightshift */
1330 1, /* size (0 = byte, 1 = short, 2 = long) */
1331 16, /* bitsize */
1332 FALSE, /* pc_relative */
1333 0, /* bitpos */
1334 complain_overflow_signed, /* complain_on_overflow */
1335 ppc64_elf_unhandled_reloc, /* special_function */
1336 "R_PPC64_DTPREL16_DS", /* name */
1337 FALSE, /* partial_inplace */
1338 0, /* src_mask */
1339 0xfffc, /* dst_mask */
1340 FALSE), /* pcrel_offset */
1341
1342 /* Like DTPREL16_DS, but no overflow. */
1343 HOWTO (R_PPC64_DTPREL16_LO_DS,
1344 0, /* rightshift */
1345 1, /* size (0 = byte, 1 = short, 2 = long) */
1346 16, /* bitsize */
1347 FALSE, /* pc_relative */
1348 0, /* bitpos */
1349 complain_overflow_dont, /* complain_on_overflow */
1350 ppc64_elf_unhandled_reloc, /* special_function */
1351 "R_PPC64_DTPREL16_LO_DS", /* name */
1352 FALSE, /* partial_inplace */
1353 0, /* src_mask */
1354 0xfffc, /* dst_mask */
1355 FALSE), /* pcrel_offset */
1356
1357 /* Computes a tp-relative displacement, the difference between the value of
1358 sym+add and the value of the thread pointer (r13). */
1359 HOWTO (R_PPC64_TPREL64,
1360 0, /* rightshift */
1361 4, /* size (0 = byte, 1 = short, 2 = long) */
1362 64, /* bitsize */
1363 FALSE, /* pc_relative */
1364 0, /* bitpos */
1365 complain_overflow_dont, /* complain_on_overflow */
1366 ppc64_elf_unhandled_reloc, /* special_function */
1367 "R_PPC64_TPREL64", /* name */
1368 FALSE, /* partial_inplace */
1369 0, /* src_mask */
1370 ONES (64), /* dst_mask */
1371 FALSE), /* pcrel_offset */
1372
1373 /* A 16 bit tprel reloc. */
1374 HOWTO (R_PPC64_TPREL16,
1375 0, /* rightshift */
1376 1, /* size (0 = byte, 1 = short, 2 = long) */
1377 16, /* bitsize */
1378 FALSE, /* pc_relative */
1379 0, /* bitpos */
1380 complain_overflow_signed, /* complain_on_overflow */
1381 ppc64_elf_unhandled_reloc, /* special_function */
1382 "R_PPC64_TPREL16", /* name */
1383 FALSE, /* partial_inplace */
1384 0, /* src_mask */
1385 0xffff, /* dst_mask */
1386 FALSE), /* pcrel_offset */
1387
1388 /* Like TPREL16, but no overflow. */
1389 HOWTO (R_PPC64_TPREL16_LO,
1390 0, /* rightshift */
1391 1, /* size (0 = byte, 1 = short, 2 = long) */
1392 16, /* bitsize */
1393 FALSE, /* pc_relative */
1394 0, /* bitpos */
1395 complain_overflow_dont, /* complain_on_overflow */
1396 ppc64_elf_unhandled_reloc, /* special_function */
1397 "R_PPC64_TPREL16_LO", /* name */
1398 FALSE, /* partial_inplace */
1399 0, /* src_mask */
1400 0xffff, /* dst_mask */
1401 FALSE), /* pcrel_offset */
1402
1403 /* Like TPREL16_LO, but next higher group of 16 bits. */
1404 HOWTO (R_PPC64_TPREL16_HI,
1405 16, /* rightshift */
1406 1, /* size (0 = byte, 1 = short, 2 = long) */
1407 16, /* bitsize */
1408 FALSE, /* pc_relative */
1409 0, /* bitpos */
1410 complain_overflow_dont, /* complain_on_overflow */
1411 ppc64_elf_unhandled_reloc, /* special_function */
1412 "R_PPC64_TPREL16_HI", /* name */
1413 FALSE, /* partial_inplace */
1414 0, /* src_mask */
1415 0xffff, /* dst_mask */
1416 FALSE), /* pcrel_offset */
1417
1418 /* Like TPREL16_HI, but adjust for low 16 bits. */
1419 HOWTO (R_PPC64_TPREL16_HA,
1420 16, /* rightshift */
1421 1, /* size (0 = byte, 1 = short, 2 = long) */
1422 16, /* bitsize */
1423 FALSE, /* pc_relative */
1424 0, /* bitpos */
1425 complain_overflow_dont, /* complain_on_overflow */
1426 ppc64_elf_unhandled_reloc, /* special_function */
1427 "R_PPC64_TPREL16_HA", /* name */
1428 FALSE, /* partial_inplace */
1429 0, /* src_mask */
1430 0xffff, /* dst_mask */
1431 FALSE), /* pcrel_offset */
1432
1433 /* Like TPREL16_HI, but next higher group of 16 bits. */
1434 HOWTO (R_PPC64_TPREL16_HIGHER,
1435 32, /* rightshift */
1436 1, /* size (0 = byte, 1 = short, 2 = long) */
1437 16, /* bitsize */
1438 FALSE, /* pc_relative */
1439 0, /* bitpos */
1440 complain_overflow_dont, /* complain_on_overflow */
1441 ppc64_elf_unhandled_reloc, /* special_function */
1442 "R_PPC64_TPREL16_HIGHER", /* name */
1443 FALSE, /* partial_inplace */
1444 0, /* src_mask */
1445 0xffff, /* dst_mask */
1446 FALSE), /* pcrel_offset */
1447
1448 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1449 HOWTO (R_PPC64_TPREL16_HIGHERA,
1450 32, /* rightshift */
1451 1, /* size (0 = byte, 1 = short, 2 = long) */
1452 16, /* bitsize */
1453 FALSE, /* pc_relative */
1454 0, /* bitpos */
1455 complain_overflow_dont, /* complain_on_overflow */
1456 ppc64_elf_unhandled_reloc, /* special_function */
1457 "R_PPC64_TPREL16_HIGHERA", /* name */
1458 FALSE, /* partial_inplace */
1459 0, /* src_mask */
1460 0xffff, /* dst_mask */
1461 FALSE), /* pcrel_offset */
1462
1463 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1464 HOWTO (R_PPC64_TPREL16_HIGHEST,
1465 48, /* rightshift */
1466 1, /* size (0 = byte, 1 = short, 2 = long) */
1467 16, /* bitsize */
1468 FALSE, /* pc_relative */
1469 0, /* bitpos */
1470 complain_overflow_dont, /* complain_on_overflow */
1471 ppc64_elf_unhandled_reloc, /* special_function */
1472 "R_PPC64_TPREL16_HIGHEST", /* name */
1473 FALSE, /* partial_inplace */
1474 0, /* src_mask */
1475 0xffff, /* dst_mask */
1476 FALSE), /* pcrel_offset */
1477
1478 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1479 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1480 48, /* rightshift */
1481 1, /* size (0 = byte, 1 = short, 2 = long) */
1482 16, /* bitsize */
1483 FALSE, /* pc_relative */
1484 0, /* bitpos */
1485 complain_overflow_dont, /* complain_on_overflow */
1486 ppc64_elf_unhandled_reloc, /* special_function */
1487 "R_PPC64_TPREL16_HIGHESTA", /* name */
1488 FALSE, /* partial_inplace */
1489 0, /* src_mask */
1490 0xffff, /* dst_mask */
1491 FALSE), /* pcrel_offset */
1492
1493 /* Like TPREL16, but for insns with a DS field. */
1494 HOWTO (R_PPC64_TPREL16_DS,
1495 0, /* rightshift */
1496 1, /* size (0 = byte, 1 = short, 2 = long) */
1497 16, /* bitsize */
1498 FALSE, /* pc_relative */
1499 0, /* bitpos */
1500 complain_overflow_signed, /* complain_on_overflow */
1501 ppc64_elf_unhandled_reloc, /* special_function */
1502 "R_PPC64_TPREL16_DS", /* name */
1503 FALSE, /* partial_inplace */
1504 0, /* src_mask */
1505 0xfffc, /* dst_mask */
1506 FALSE), /* pcrel_offset */
1507
1508 /* Like TPREL16_DS, but no overflow. */
1509 HOWTO (R_PPC64_TPREL16_LO_DS,
1510 0, /* rightshift */
1511 1, /* size (0 = byte, 1 = short, 2 = long) */
1512 16, /* bitsize */
1513 FALSE, /* pc_relative */
1514 0, /* bitpos */
1515 complain_overflow_dont, /* complain_on_overflow */
1516 ppc64_elf_unhandled_reloc, /* special_function */
1517 "R_PPC64_TPREL16_LO_DS", /* name */
1518 FALSE, /* partial_inplace */
1519 0, /* src_mask */
1520 0xfffc, /* dst_mask */
1521 FALSE), /* pcrel_offset */
1522
1523 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1524 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1525 to the first entry relative to the TOC base (r2). */
1526 HOWTO (R_PPC64_GOT_TLSGD16,
1527 0, /* rightshift */
1528 1, /* size (0 = byte, 1 = short, 2 = long) */
1529 16, /* bitsize */
1530 FALSE, /* pc_relative */
1531 0, /* bitpos */
1532 complain_overflow_signed, /* complain_on_overflow */
1533 ppc64_elf_unhandled_reloc, /* special_function */
1534 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1535 FALSE, /* partial_inplace */
5bd4f169
AM
1536 0, /* src_mask */
1537 0xffff, /* dst_mask */
b34976b6 1538 FALSE), /* pcrel_offset */
5bd4f169 1539
411e1bfb
AM
1540 /* Like GOT_TLSGD16, but no overflow. */
1541 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM
1542 0, /* rightshift */
1543 1, /* size (0 = byte, 1 = short, 2 = long) */
1544 16, /* bitsize */
b34976b6 1545 FALSE, /* pc_relative */
5bd4f169
AM
1546 0, /* bitpos */
1547 complain_overflow_dont, /* complain_on_overflow */
805fc799 1548 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1549 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1550 FALSE, /* partial_inplace */
5bd4f169
AM
1551 0, /* src_mask */
1552 0xffff, /* dst_mask */
b34976b6 1553 FALSE), /* pcrel_offset */
5bd4f169 1554
411e1bfb
AM
1555 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1556 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM
1557 16, /* rightshift */
1558 1, /* size (0 = byte, 1 = short, 2 = long) */
1559 16, /* bitsize */
b34976b6 1560 FALSE, /* pc_relative */
5bd4f169
AM
1561 0, /* bitpos */
1562 complain_overflow_dont, /* complain_on_overflow */
805fc799 1563 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1564 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1565 FALSE, /* partial_inplace */
5bd4f169
AM
1566 0, /* src_mask */
1567 0xffff, /* dst_mask */
b34976b6 1568 FALSE), /* pcrel_offset */
5bd4f169 1569
411e1bfb
AM
1570 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1571 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM
1572 16, /* rightshift */
1573 1, /* size (0 = byte, 1 = short, 2 = long) */
1574 16, /* bitsize */
b34976b6 1575 FALSE, /* pc_relative */
5bd4f169 1576 0, /* bitpos */
411e1bfb 1577 complain_overflow_dont, /* complain_on_overflow */
805fc799 1578 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1579 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1580 FALSE, /* partial_inplace */
5bd4f169
AM
1581 0, /* src_mask */
1582 0xffff, /* dst_mask */
b34976b6 1583 FALSE), /* pcrel_offset */
5bd4f169 1584
411e1bfb
AM
1585 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1586 with values (sym+add)@dtpmod and zero, and computes the offset to the
1587 first entry relative to the TOC base (r2). */
1588 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM
1589 0, /* rightshift */
1590 1, /* size (0 = byte, 1 = short, 2 = long) */
1591 16, /* bitsize */
b34976b6 1592 FALSE, /* pc_relative */
5bd4f169 1593 0, /* bitpos */
411e1bfb
AM
1594 complain_overflow_signed, /* complain_on_overflow */
1595 ppc64_elf_unhandled_reloc, /* special_function */
1596 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1597 FALSE, /* partial_inplace */
d006db6c 1598 0, /* src_mask */
411e1bfb 1599 0xffff, /* dst_mask */
b34976b6 1600 FALSE), /* pcrel_offset */
5bd4f169 1601
411e1bfb
AM
1602 /* Like GOT_TLSLD16, but no overflow. */
1603 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM
1604 0, /* rightshift */
1605 1, /* size (0 = byte, 1 = short, 2 = long) */
1606 16, /* bitsize */
b34976b6 1607 FALSE, /* pc_relative */
5bd4f169 1608 0, /* bitpos */
411e1bfb
AM
1609 complain_overflow_dont, /* complain_on_overflow */
1610 ppc64_elf_unhandled_reloc, /* special_function */
1611 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1612 FALSE, /* partial_inplace */
d006db6c 1613 0, /* src_mask */
411e1bfb 1614 0xffff, /* dst_mask */
b34976b6 1615 FALSE), /* pcrel_offset */
5bd4f169 1616
411e1bfb
AM
1617 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1618 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1619 16, /* rightshift */
5bd4f169
AM
1620 1, /* size (0 = byte, 1 = short, 2 = long) */
1621 16, /* bitsize */
b34976b6 1622 FALSE, /* pc_relative */
5bd4f169 1623 0, /* bitpos */
411e1bfb 1624 complain_overflow_dont, /* complain_on_overflow */
805fc799 1625 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1626 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1627 FALSE, /* partial_inplace */
d006db6c 1628 0, /* src_mask */
411e1bfb 1629 0xffff, /* dst_mask */
b34976b6 1630 FALSE), /* pcrel_offset */
5bd4f169 1631
411e1bfb
AM
1632 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1633 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1634 16, /* rightshift */
5bd4f169
AM
1635 1, /* size (0 = byte, 1 = short, 2 = long) */
1636 16, /* bitsize */
b34976b6 1637 FALSE, /* pc_relative */
5bd4f169
AM
1638 0, /* bitpos */
1639 complain_overflow_dont, /* complain_on_overflow */
805fc799 1640 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1641 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1642 FALSE, /* partial_inplace */
d006db6c 1643 0, /* src_mask */
411e1bfb 1644 0xffff, /* dst_mask */
b34976b6 1645 FALSE), /* pcrel_offset */
5bd4f169 1646
411e1bfb
AM
1647 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1648 the offset to the entry relative to the TOC base (r2). */
1649 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM
1650 0, /* rightshift */
1651 1, /* size (0 = byte, 1 = short, 2 = long) */
1652 16, /* bitsize */
b34976b6 1653 FALSE, /* pc_relative */
5bd4f169 1654 0, /* bitpos */
411e1bfb 1655 complain_overflow_signed, /* complain_on_overflow */
805fc799 1656 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1657 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1658 FALSE, /* partial_inplace */
d006db6c 1659 0, /* src_mask */
5bd4f169 1660 0xfffc, /* dst_mask */
b34976b6 1661 FALSE), /* pcrel_offset */
5bd4f169 1662
411e1bfb
AM
1663 /* Like GOT_DTPREL16_DS, but no overflow. */
1664 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1665 0, /* rightshift */
c061c2d8
AM
1666 1, /* size (0 = byte, 1 = short, 2 = long) */
1667 16, /* bitsize */
b34976b6 1668 FALSE, /* pc_relative */
5bd4f169 1669 0, /* bitpos */
411e1bfb
AM
1670 complain_overflow_dont, /* complain_on_overflow */
1671 ppc64_elf_unhandled_reloc, /* special_function */
1672 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1673 FALSE, /* partial_inplace */
d006db6c 1674 0, /* src_mask */
c061c2d8 1675 0xfffc, /* dst_mask */
b34976b6 1676 FALSE), /* pcrel_offset */
5bd4f169 1677
411e1bfb
AM
1678 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1679 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1680 16, /* rightshift */
5bd4f169
AM
1681 1, /* size (0 = byte, 1 = short, 2 = long) */
1682 16, /* bitsize */
b34976b6 1683 FALSE, /* pc_relative */
5bd4f169
AM
1684 0, /* bitpos */
1685 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM
1686 ppc64_elf_unhandled_reloc, /* special_function */
1687 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1688 FALSE, /* partial_inplace */
d006db6c 1689 0, /* src_mask */
411e1bfb 1690 0xffff, /* dst_mask */
b34976b6 1691 FALSE), /* pcrel_offset */
5bd4f169 1692
411e1bfb
AM
1693 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1694 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1695 16, /* rightshift */
1696 1, /* size (0 = byte, 1 = short, 2 = long) */
1697 16, /* bitsize */
1698 FALSE, /* pc_relative */
1699 0, /* bitpos */
1700 complain_overflow_dont, /* complain_on_overflow */
1701 ppc64_elf_unhandled_reloc, /* special_function */
1702 "R_PPC64_GOT_DTPREL16_HA", /* name */
1703 FALSE, /* partial_inplace */
1704 0, /* src_mask */
1705 0xffff, /* dst_mask */
1706 FALSE), /* pcrel_offset */
1707
1708 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1709 offset to the entry relative to the TOC base (r2). */
1710 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM
1711 0, /* rightshift */
1712 1, /* size (0 = byte, 1 = short, 2 = long) */
1713 16, /* bitsize */
b34976b6 1714 FALSE, /* pc_relative */
5bd4f169
AM
1715 0, /* bitpos */
1716 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM
1717 ppc64_elf_unhandled_reloc, /* special_function */
1718 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1719 FALSE, /* partial_inplace */
d006db6c 1720 0, /* src_mask */
411e1bfb 1721 0xffff, /* dst_mask */
b34976b6 1722 FALSE), /* pcrel_offset */
5bd4f169 1723
411e1bfb
AM
1724 /* Like GOT_TPREL16_DS, but no overflow. */
1725 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM
1726 0, /* rightshift */
1727 1, /* size (0 = byte, 1 = short, 2 = long) */
1728 16, /* bitsize */
b34976b6 1729 FALSE, /* pc_relative */
5bd4f169
AM
1730 0, /* bitpos */
1731 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM
1732 ppc64_elf_unhandled_reloc, /* special_function */
1733 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1734 FALSE, /* partial_inplace */
d006db6c 1735 0, /* src_mask */
411e1bfb 1736 0xffff, /* dst_mask */
b34976b6 1737 FALSE), /* pcrel_offset */
5bd4f169 1738
411e1bfb
AM
1739 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1740 HOWTO (R_PPC64_GOT_TPREL16_HI,
1741 16, /* rightshift */
5bd4f169
AM
1742 1, /* size (0 = byte, 1 = short, 2 = long) */
1743 16, /* bitsize */
b34976b6 1744 FALSE, /* pc_relative */
5bd4f169 1745 0, /* bitpos */
411e1bfb 1746 complain_overflow_dont, /* complain_on_overflow */
805fc799 1747 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1748 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1749 FALSE, /* partial_inplace */
d006db6c 1750 0, /* src_mask */
411e1bfb 1751 0xffff, /* dst_mask */
b34976b6 1752 FALSE), /* pcrel_offset */
5bd4f169 1753
411e1bfb
AM
1754 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1755 HOWTO (R_PPC64_GOT_TPREL16_HA,
1756 16, /* rightshift */
5bd4f169
AM
1757 1, /* size (0 = byte, 1 = short, 2 = long) */
1758 16, /* bitsize */
b34976b6 1759 FALSE, /* pc_relative */
5bd4f169
AM
1760 0, /* bitpos */
1761 complain_overflow_dont, /* complain_on_overflow */
805fc799 1762 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1763 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1764 FALSE, /* partial_inplace */
d006db6c 1765 0, /* src_mask */
411e1bfb 1766 0xffff, /* dst_mask */
b34976b6 1767 FALSE), /* pcrel_offset */
5bd4f169
AM
1768
1769 /* GNU extension to record C++ vtable hierarchy. */
1770 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1771 0, /* rightshift */
1772 0, /* size (0 = byte, 1 = short, 2 = long) */
1773 0, /* bitsize */
b34976b6 1774 FALSE, /* pc_relative */
5bd4f169
AM
1775 0, /* bitpos */
1776 complain_overflow_dont, /* complain_on_overflow */
1777 NULL, /* special_function */
1778 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1779 FALSE, /* partial_inplace */
5bd4f169
AM
1780 0, /* src_mask */
1781 0, /* dst_mask */
b34976b6 1782 FALSE), /* pcrel_offset */
5bd4f169
AM
1783
1784 /* GNU extension to record C++ vtable member usage. */
1785 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1786 0, /* rightshift */
1787 0, /* size (0 = byte, 1 = short, 2 = long) */
1788 0, /* bitsize */
b34976b6 1789 FALSE, /* pc_relative */
5bd4f169
AM
1790 0, /* bitpos */
1791 complain_overflow_dont, /* complain_on_overflow */
1792 NULL, /* special_function */
1793 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1794 FALSE, /* partial_inplace */
5bd4f169
AM
1795 0, /* src_mask */
1796 0, /* dst_mask */
b34976b6 1797 FALSE), /* pcrel_offset */
5bd4f169
AM
1798};
1799
1800\f
1801/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1802 be done. */
1803
1804static void
1805ppc_howto_init ()
1806{
1807 unsigned int i, type;
1808
1809 for (i = 0;
1810 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1811 i++)
1812 {
1813 type = ppc64_elf_howto_raw[i].type;
1814 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1815 / sizeof (ppc64_elf_howto_table[0])));
1816 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1817 }
1818}
1819
1820static reloc_howto_type *
1821ppc64_elf_reloc_type_lookup (abfd, code)
1822 bfd *abfd ATTRIBUTE_UNUSED;
1823 bfd_reloc_code_real_type code;
1824{
411e1bfb 1825 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM
1826
1827 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1828 /* Initialize howto table if needed. */
1829 ppc_howto_init ();
1830
1831 switch ((int) code)
1832 {
1833 default:
1834 return (reloc_howto_type *) NULL;
1835
411e1bfb
AM
1836 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1837 break;
1838 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1839 break;
1840 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1841 break;
1842 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1843 break;
1844 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1845 break;
1846 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1847 break;
1848 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1849 break;
411e1bfb 1850 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1851 break;
411e1bfb 1852 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1853 break;
411e1bfb 1854 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1855 break;
411e1bfb 1856 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1857 break;
411e1bfb 1858 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1859 break;
411e1bfb 1860 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1861 break;
411e1bfb 1862 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1863 break;
411e1bfb 1864 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1865 break;
411e1bfb 1866 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1867 break;
411e1bfb 1868 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1869 break;
411e1bfb 1870 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1871 break;
411e1bfb 1872 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1873 break;
411e1bfb 1874 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1875 break;
411e1bfb 1876 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1877 break;
411e1bfb 1878 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1879 break;
411e1bfb 1880 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1881 break;
411e1bfb 1882 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1883 break;
411e1bfb 1884 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1885 break;
411e1bfb 1886 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1887 break;
411e1bfb 1888 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1889 break;
411e1bfb 1890 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1891 break;
411e1bfb 1892 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1893 break;
411e1bfb 1894 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1895 break;
411e1bfb 1896 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1897 break;
411e1bfb 1898 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1899 break;
411e1bfb 1900 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1901 break;
411e1bfb 1902 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1903 break;
411e1bfb 1904 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1905 break;
411e1bfb 1906 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1907 break;
411e1bfb 1908 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1909 break;
411e1bfb 1910 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1911 break;
411e1bfb 1912 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1913 break;
411e1bfb 1914 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1915 break;
411e1bfb 1916 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1917 break;
411e1bfb 1918 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1919 break;
411e1bfb 1920 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1921 break;
411e1bfb 1922 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1923 break;
411e1bfb 1924 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1925 break;
411e1bfb 1926 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1927 break;
411e1bfb 1928 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1929 break;
411e1bfb 1930 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1931 break;
411e1bfb 1932 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1933 break;
411e1bfb 1934 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 1935 break;
411e1bfb 1936 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 1937 break;
411e1bfb 1938 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 1939 break;
411e1bfb 1940 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 1941 break;
411e1bfb 1942 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 1943 break;
411e1bfb 1944 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 1945 break;
411e1bfb 1946 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 1947 break;
411e1bfb 1948 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 1949 break;
411e1bfb 1950 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 1951 break;
411e1bfb 1952 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 1953 break;
411e1bfb 1954 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 1955 break;
411e1bfb 1956 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 1957 break;
411e1bfb 1958 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 1959 break;
411e1bfb 1960 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 1961 break;
411e1bfb 1962 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 1963 break;
411e1bfb 1964 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 1965 break;
411e1bfb 1966 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 1967 break;
411e1bfb
AM
1968 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
1969 break;
1970 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
1971 break;
1972 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
1973 break;
1974 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
1975 break;
1976 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
1977 break;
1978 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
1979 break;
1980 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
1981 break;
1982 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
1983 break;
1984 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
1985 break;
1986 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
1987 break;
1988 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
1989 break;
1990 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
1991 break;
1992 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
1993 break;
1994 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
1995 break;
1996 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
1997 break;
1998 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
1999 break;
2000 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2001 break;
2002 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2003 break;
2004 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2005 break;
2006 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2007 break;
2008 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2009 break;
2010 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2011 break;
2012 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2013 break;
2014 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2015 break;
2016 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2017 break;
2018 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2019 break;
2020 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2021 break;
2022 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2023 break;
2024 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2025 break;
2026 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2027 break;
2028 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2029 break;
2030 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2031 break;
2032 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2033 break;
2034 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2035 break;
2036 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM
2037 break;
2038 }
2039
411e1bfb 2040 return ppc64_elf_howto_table[(int) r];
5bd4f169
AM
2041};
2042
2043/* Set the howto pointer for a PowerPC ELF reloc. */
2044
2045static void
2046ppc64_elf_info_to_howto (abfd, cache_ptr, dst)
2047 bfd *abfd ATTRIBUTE_UNUSED;
2048 arelent *cache_ptr;
947216bf 2049 Elf_Internal_Rela *dst;
5bd4f169 2050{
65f38f15
AM
2051 unsigned int type;
2052
ef60b7ff 2053 /* Initialize howto table if needed. */
5bd4f169 2054 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM
2055 ppc_howto_init ();
2056
65f38f15
AM
2057 type = ELF64_R_TYPE (dst->r_info);
2058 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2059 / sizeof (ppc64_elf_howto_table[0])));
2060 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM
2061}
2062
04c9666a 2063/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM
2064
2065static bfd_reloc_status_type
805fc799
AM
2066ppc64_elf_ha_reloc (abfd, reloc_entry, symbol, data,
2067 input_section, output_bfd, error_message)
2068 bfd *abfd;
5bd4f169
AM
2069 arelent *reloc_entry;
2070 asymbol *symbol;
805fc799 2071 PTR data;
5bd4f169
AM
2072 asection *input_section;
2073 bfd *output_bfd;
805fc799 2074 char **error_message;
5bd4f169 2075{
805fc799
AM
2076 /* If this is a relocatable link (output_bfd test tells us), just
2077 call the generic function. Any adjustment will be done at final
2078 link time. */
2079 if (output_bfd != NULL)
cedb70c5 2080 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2081 input_section, output_bfd, error_message);
2082
2083 /* Adjust the addend for sign extension of the low 16 bits.
2084 We won't actually be using the low 16 bits, so trashing them
2085 doesn't matter. */
2086 reloc_entry->addend += 0x8000;
2087 return bfd_reloc_continue;
2088}
5bd4f169 2089
805fc799
AM
2090static bfd_reloc_status_type
2091ppc64_elf_brtaken_reloc (abfd, reloc_entry, symbol, data,
2092 input_section, output_bfd, error_message)
2093 bfd *abfd;
2094 arelent *reloc_entry;
2095 asymbol *symbol;
2096 PTR data;
2097 asection *input_section;
2098 bfd *output_bfd;
2099 char **error_message;
2100{
2101 long insn;
04c9666a 2102 enum elf_ppc64_reloc_type r_type;
805fc799
AM
2103 bfd_size_type octets;
2104 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2105 bfd_boolean is_power4 = FALSE;
805fc799
AM
2106
2107 /* If this is a relocatable link (output_bfd test tells us), just
2108 call the generic function. Any adjustment will be done at final
2109 link time. */
5bd4f169 2110 if (output_bfd != NULL)
cedb70c5 2111 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2112 input_section, output_bfd, error_message);
2113
2114 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2115 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2116 insn &= ~(0x01 << 21);
04c9666a 2117 r_type = (enum elf_ppc64_reloc_type) reloc_entry->howto->type;
805fc799
AM
2118 if (r_type == R_PPC64_ADDR14_BRTAKEN
2119 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2120 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM
2121
2122 if (is_power4)
5bd4f169 2123 {
805fc799
AM
2124 /* Set 'a' bit. This is 0b00010 in BO field for branch
2125 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2126 for branch on CTR insns (BO == 1a00t or 1a01t). */
2127 if ((insn & (0x14 << 21)) == (0x04 << 21))
2128 insn |= 0x02 << 21;
2129 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2130 insn |= 0x08 << 21;
2131 else
2132 return bfd_reloc_continue;
5bd4f169 2133 }
805fc799
AM
2134 else
2135 {
2136 bfd_vma target = 0;
2137 bfd_vma from;
5bd4f169 2138
805fc799
AM
2139 if (!bfd_is_com_section (symbol->section))
2140 target = symbol->value;
2141 target += symbol->section->output_section->vma;
2142 target += symbol->section->output_offset;
2143 target += reloc_entry->addend;
5bd4f169 2144
805fc799
AM
2145 from = (reloc_entry->address
2146 + input_section->output_offset
2147 + input_section->output_section->vma);
5bd4f169 2148
805fc799
AM
2149 /* Invert 'y' bit if not the default. */
2150 if ((bfd_signed_vma) (target - from) < 0)
2151 insn ^= 0x01 << 21;
2152 }
2153 bfd_put_32 (abfd, (bfd_vma) insn, (bfd_byte *) data + octets);
2154 return bfd_reloc_continue;
2155}
5bd4f169 2156
805fc799
AM
2157static bfd_reloc_status_type
2158ppc64_elf_sectoff_reloc (abfd, reloc_entry, symbol, data,
2159 input_section, output_bfd, error_message)
2160 bfd *abfd;
2161 arelent *reloc_entry;
2162 asymbol *symbol;
2163 PTR data;
2164 asection *input_section;
2165 bfd *output_bfd;
2166 char **error_message;
2167{
2168 /* If this is a relocatable link (output_bfd test tells us), just
2169 call the generic function. Any adjustment will be done at final
2170 link time. */
2171 if (output_bfd != NULL)
cedb70c5 2172 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2173 input_section, output_bfd, error_message);
5bd4f169 2174
805fc799
AM
2175 /* Subtract the symbol section base address. */
2176 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM
2177 return bfd_reloc_continue;
2178}
2179
805fc799
AM
2180static bfd_reloc_status_type
2181ppc64_elf_sectoff_ha_reloc (abfd, reloc_entry, symbol, data,
2182 input_section, output_bfd, error_message)
2183 bfd *abfd;
2184 arelent *reloc_entry;
2185 asymbol *symbol;
2186 PTR data;
2187 asection *input_section;
2188 bfd *output_bfd;
2189 char **error_message;
2190{
2191 /* If this is a relocatable link (output_bfd test tells us), just
2192 call the generic function. Any adjustment will be done at final
2193 link time. */
2194 if (output_bfd != NULL)
cedb70c5 2195 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2196 input_section, output_bfd, error_message);
2197
2198 /* Subtract the symbol section base address. */
2199 reloc_entry->addend -= symbol->section->output_section->vma;
2200
2201 /* Adjust the addend for sign extension of the low 16 bits. */
2202 reloc_entry->addend += 0x8000;
2203 return bfd_reloc_continue;
2204}
2205
2206static bfd_reloc_status_type
2207ppc64_elf_toc_reloc (abfd, reloc_entry, symbol, data,
2208 input_section, output_bfd, error_message)
2209 bfd *abfd;
2210 arelent *reloc_entry;
2211 asymbol *symbol;
2212 PTR data;
2213 asection *input_section;
2214 bfd *output_bfd;
2215 char **error_message;
2216{
2217 bfd_vma TOCstart;
2218
2219 /* If this is a relocatable link (output_bfd test tells us), just
2220 call the generic function. Any adjustment will be done at final
2221 link time. */
2222 if (output_bfd != NULL)
cedb70c5 2223 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2224 input_section, output_bfd, error_message);
2225
2226 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2227 if (TOCstart == 0)
2228 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2229
2230 /* Subtract the TOC base address. */
2231 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2232 return bfd_reloc_continue;
2233}
2234
2235static bfd_reloc_status_type
2236ppc64_elf_toc_ha_reloc (abfd, reloc_entry, symbol, data,
2237 input_section, output_bfd, error_message)
2238 bfd *abfd;
2239 arelent *reloc_entry;
2240 asymbol *symbol;
2241 PTR data;
2242 asection *input_section;
2243 bfd *output_bfd;
2244 char **error_message;
2245{
2246 bfd_vma TOCstart;
2247
2248 /* If this is a relocatable link (output_bfd test tells us), just
2249 call the generic function. Any adjustment will be done at final
2250 link time. */
2251 if (output_bfd != NULL)
cedb70c5 2252 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2253 input_section, output_bfd, error_message);
2254
2255 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2256 if (TOCstart == 0)
2257 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2258
2259 /* Subtract the TOC base address. */
2260 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2261
2262 /* Adjust the addend for sign extension of the low 16 bits. */
2263 reloc_entry->addend += 0x8000;
2264 return bfd_reloc_continue;
2265}
2266
2267static bfd_reloc_status_type
2268ppc64_elf_toc64_reloc (abfd, reloc_entry, symbol, data,
2269 input_section, output_bfd, error_message)
2270 bfd *abfd;
2271 arelent *reloc_entry;
2272 asymbol *symbol;
2273 PTR data;
2274 asection *input_section;
2275 bfd *output_bfd;
2276 char **error_message;
2277{
2278 bfd_vma TOCstart;
2279 bfd_size_type octets;
2280
2281 /* If this is a relocatable link (output_bfd test tells us), just
2282 call the generic function. Any adjustment will be done at final
2283 link time. */
2284 if (output_bfd != NULL)
cedb70c5 2285 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2286 input_section, output_bfd, error_message);
2287
2288 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2289 if (TOCstart == 0)
2290 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2291
2292 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2293 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2294 return bfd_reloc_ok;
2295}
2296
2297static bfd_reloc_status_type
2298ppc64_elf_unhandled_reloc (abfd, reloc_entry, symbol, data,
2299 input_section, output_bfd, error_message)
2300 bfd *abfd;
2301 arelent *reloc_entry;
2302 asymbol *symbol;
2303 PTR data;
2304 asection *input_section;
2305 bfd *output_bfd;
2306 char **error_message;
2307{
2308 /* If this is a relocatable link (output_bfd test tells us), just
2309 call the generic function. Any adjustment will be done at final
2310 link time. */
2311 if (output_bfd != NULL)
cedb70c5 2312 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2313 input_section, output_bfd, error_message);
2314
2315 if (error_message != NULL)
2316 {
2317 static char buf[60];
2318 sprintf (buf, "generic linker can't handle %s",
2319 reloc_entry->howto->name);
2320 *error_message = buf;
2321 }
2322 return bfd_reloc_dangerous;
2323}
2324
feee612b
AM
2325/* Fix bad default arch selected for a 64 bit input bfd when the
2326 default is 32 bit. */
2327
b34976b6 2328static bfd_boolean
feee612b
AM
2329ppc64_elf_object_p (abfd)
2330 bfd *abfd;
2331{
2332 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2333 {
2334 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2335
2336 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2337 {
2338 /* Relies on arch after 32 bit default being 64 bit default. */
2339 abfd->arch_info = abfd->arch_info->next;
2340 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2341 }
2342 }
b34976b6 2343 return TRUE;
feee612b
AM
2344}
2345
5bd4f169
AM
2346/* Merge backend specific data from an object file to the output
2347 object file when linking. */
2f6d9989 2348
b34976b6 2349static bfd_boolean
5bd4f169
AM
2350ppc64_elf_merge_private_bfd_data (ibfd, obfd)
2351 bfd *ibfd;
2352 bfd *obfd;
2353{
5bd4f169
AM
2354 /* Check if we have the same endianess. */
2355 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2356 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM
2357 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2358 {
2359 const char *msg;
2360
2361 if (bfd_big_endian (ibfd))
2362 msg = _("%s: compiled for a big endian system and target is little endian");
2363 else
2364 msg = _("%s: compiled for a little endian system and target is big endian");
2365
8f615d07 2366 (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
5bd4f169
AM
2367
2368 bfd_set_error (bfd_error_wrong_format);
b34976b6 2369 return FALSE;
5bd4f169
AM
2370 }
2371
b34976b6 2372 return TRUE;
5bd4f169 2373}
f0abc2a1
AM
2374
2375struct _ppc64_elf_section_data
2376{
2377 struct bfd_elf_section_data elf;
411e1bfb
AM
2378
2379 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM
2380 union
2381 {
411e1bfb 2382 /* Points to the function code section for local opd entries. */
f0abc2a1 2383 asection **func_sec;
411e1bfb 2384 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM
2385 long *adjust;
2386 } opd;
411e1bfb
AM
2387
2388 /* An array for toc sections, indexed by offset/8.
2389 Specifies the relocation symbol index used at a given toc offset. */
2390 unsigned *t_symndx;
f0abc2a1
AM
2391};
2392
2393#define ppc64_elf_section_data(sec) \
411e1bfb 2394 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM
2395
2396static bfd_boolean
2397ppc64_elf_new_section_hook (abfd, sec)
2398 bfd *abfd;
2399 asection *sec;
2400{
2401 struct _ppc64_elf_section_data *sdata;
2402 bfd_size_type amt = sizeof (*sdata);
2403
2404 sdata = (struct _ppc64_elf_section_data *) bfd_zalloc (abfd, amt);
2405 if (sdata == NULL)
2406 return FALSE;
2407 sec->used_by_bfd = (PTR) sdata;
2408
2409 return _bfd_elf_new_section_hook (abfd, sec);
2410}
5bd4f169 2411\f
65f38f15
AM
2412/* The following functions are specific to the ELF linker, while
2413 functions above are used generally. Those named ppc64_elf_* are
2414 called by the main ELF linker code. They appear in this file more
2415 or less in the order in which they are called. eg.
2416 ppc64_elf_check_relocs is called early in the link process,
2417 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM
2418 called.
2419
2420 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2421 functions have both a function code symbol and a function descriptor
2422 symbol. A call to foo in a relocatable object file looks like:
2423
2424 . .text
2425 . x:
2426 . bl .foo
2427 . nop
2428
2429 The function definition in another object file might be:
2430
2431 . .section .opd
2432 . foo: .quad .foo
2433 . .quad .TOC.@tocbase
2434 . .quad 0
2435 .
2436 . .text
2437 . .foo: blr
2438
2439 When the linker resolves the call during a static link, the branch
2440 unsurprisingly just goes to .foo and the .opd information is unused.
2441 If the function definition is in a shared library, things are a little
2442 different: The call goes via a plt call stub, the opd information gets
2443 copied to the plt, and the linker patches the nop.
2444
2445 . x:
2446 . bl .foo_stub
2447 . ld 2,40(1)
2448 .
2449 .
2450 . .foo_stub:
2451 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2452 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM
2453 . std 2,40(1) # this is the general idea
2454 . ld 11,0(12)
2455 . ld 2,8(12)
2456 . mtctr 11
2457 . ld 11,16(12)
2458 . bctr
2459 .
2460 . .section .plt
2461 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2462
2463 The "reloc ()" notation is supposed to indicate that the linker emits
2464 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2465 copying.
2466
2467 What are the difficulties here? Well, firstly, the relocations
2468 examined by the linker in check_relocs are against the function code
2469 sym .foo, while the dynamic relocation in the plt is emitted against
2470 the function descriptor symbol, foo. Somewhere along the line, we need
2471 to carefully copy dynamic link information from one symbol to the other.
2472 Secondly, the generic part of the elf linker will make .foo a dynamic
2473 symbol as is normal for most other backends. We need foo dynamic
2474 instead, at least for an application final link. However, when
2475 creating a shared library containing foo, we need to have both symbols
2476 dynamic so that references to .foo are satisfied during the early
2477 stages of linking. Otherwise the linker might decide to pull in a
41bd81ab 2478 definition from some other object, eg. a static library. */
65f38f15
AM
2479
2480/* The linker needs to keep track of the number of relocs that it
2481 decides to copy as dynamic relocs in check_relocs for each symbol.
2482 This is so that it can later discard them if they are found to be
2483 unnecessary. We store the information in a field extending the
2484 regular ELF linker hash table. */
2485
2486struct ppc_dyn_relocs
2487{
2488 struct ppc_dyn_relocs *next;
2489
2490 /* The input section of the reloc. */
2491 asection *sec;
2492
2493 /* Total number of relocs copied for the input section. */
2494 bfd_size_type count;
2495
2496 /* Number of pc-relative relocs copied for the input section. */
2497 bfd_size_type pc_count;
2498};
2499
411e1bfb
AM
2500/* Track GOT entries needed for a given symbol. We might need more
2501 than one got entry per symbol. */
2502struct got_entry
2503{
2504 struct got_entry *next;
2505
e7b938ca 2506 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM
2507 bfd_vma addend;
2508
e7b938ca 2509 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM
2510 union
2511 {
2512 bfd_signed_vma refcount;
2513 bfd_vma offset;
2514 } got;
2515
e7b938ca
AM
2516 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2517 TLS_TPREL or TLS_DTPREL for tls entries. */
411e1bfb
AM
2518 char tls_type;
2519};
2520
2521/* The same for PLT. */
2522struct plt_entry
2523{
2524 struct plt_entry *next;
2525
2526 bfd_vma addend;
2527
2528 union
2529 {
2530 bfd_signed_vma refcount;
2531 bfd_vma offset;
2532 } plt;
2533};
2534
65f38f15 2535/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM
2536 selects those that must be copied when linking a shared library,
2537 even when the symbol is local. */
65f38f15 2538
411e1bfb 2539#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM
2540 ((RTYPE) != R_PPC64_REL32 \
2541 && (RTYPE) != R_PPC64_REL64 \
04c9666a 2542 && (RTYPE) != R_PPC64_REL30)
65f38f15 2543
721956f4
AM
2544/* Section name for stubs is the associated section name plus this
2545 string. */
2546#define STUB_SUFFIX ".stub"
2547
2548/* Linker stubs.
2549 ppc_stub_long_branch:
2550 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2551 destination, but a 24 bit branch in a stub section will reach.
2552 . b dest
2553
2554 ppc_stub_plt_branch:
2555 Similar to the above, but a 24 bit branch in the stub section won't
2556 reach its destination.
87e226ce
AM
2557 . addis %r12,%r2,xxx@toc@ha
2558 . ld %r11,xxx@toc@l(%r12)
721956f4
AM
2559 . mtctr %r11
2560 . bctr
2561
2562 ppc_stub_plt_call:
2563 Used to call a function in a shared library.
87e226ce 2564 . addis %r12,%r2,xxx@toc@ha
721956f4 2565 . std %r2,40(%r1)
87e226ce
AM
2566 . ld %r11,xxx+0@toc@l(%r12)
2567 . ld %r2,xxx+8@toc@l(%r12)
721956f4 2568 . mtctr %r11
87e226ce 2569 . ld %r11,xxx+16@toc@l(%r12)
721956f4
AM
2570 . bctr
2571*/
2572
2573enum ppc_stub_type {
2574 ppc_stub_none,
2575 ppc_stub_long_branch,
2576 ppc_stub_plt_branch,
2577 ppc_stub_plt_call
2578};
2579
2580struct ppc_stub_hash_entry {
2581
2582 /* Base hash table entry structure. */
2583 struct bfd_hash_entry root;
2584
2585 /* The stub section. */
2586 asection *stub_sec;
2587
2588 /* Offset within stub_sec of the beginning of this stub. */
2589 bfd_vma stub_offset;
2590
2591 /* Given the symbol's value and its section we can determine its final
2592 value when building the stubs (so the stub knows where to jump. */
2593 bfd_vma target_value;
2594 asection *target_section;
2595
2596 enum ppc_stub_type stub_type;
2597
2598 /* The symbol table entry, if any, that this was derived from. */
2599 struct ppc_link_hash_entry *h;
2600
411e1bfb
AM
2601 /* And the reloc addend that this was derived from. */
2602 bfd_vma addend;
2603
721956f4
AM
2604 /* Where this stub is being called from, or, in the case of combined
2605 stub sections, the first input section in the group. */
2606 asection *id_sec;
2607};
2608
2609struct ppc_branch_hash_entry {
2610
2611 /* Base hash table entry structure. */
2612 struct bfd_hash_entry root;
2613
2614 /* Offset within .branch_lt. */
2615 unsigned int offset;
2616
2617 /* Generation marker. */
2618 unsigned int iter;
2619};
65f38f15
AM
2620
2621struct ppc_link_hash_entry
2622{
2623 struct elf_link_hash_entry elf;
2624
721956f4
AM
2625 /* A pointer to the most recently used stub hash entry against this
2626 symbol. */
2627 struct ppc_stub_hash_entry *stub_cache;
2628
65f38f15
AM
2629 /* Track dynamic relocs copied for this symbol. */
2630 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 2631
721956f4
AM
2632 /* Link between function code and descriptor symbols. */
2633 struct elf_link_hash_entry *oh;
2634
e86ce104
AM
2635 /* Flag function code and descriptor symbols. */
2636 unsigned int is_func:1;
2637 unsigned int is_func_descriptor:1;
1e2f5b6e 2638 unsigned int is_entry:1;
411e1bfb
AM
2639
2640 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM
2641 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2642 corresponding relocs are encountered during check_relocs.
2643 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2644 indicate the corresponding GOT entry type is not needed.
2645 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2646 a TPREL one. We use a separate flag rather than setting TPREL
2647 just for convenience in distinguishing the two cases. */
2648#define TLS_GD 1 /* GD reloc. */
2649#define TLS_LD 2 /* LD reloc. */
2650#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2651#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2652#define TLS_TLS 16 /* Any TLS reloc. */
2653#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2654#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2655 char tls_mask;
65f38f15
AM
2656};
2657
2658/* ppc64 ELF linker hash table. */
2659
2660struct ppc_link_hash_table
2661{
2662 struct elf_link_hash_table elf;
2663
721956f4
AM
2664 /* The stub hash table. */
2665 struct bfd_hash_table stub_hash_table;
2666
2667 /* Another hash table for plt_branch stubs. */
2668 struct bfd_hash_table branch_hash_table;
2669
2670 /* Linker stub bfd. */
2671 bfd *stub_bfd;
2672
2673 /* Linker call-backs. */
2674 asection * (*add_stub_section) PARAMS ((const char *, asection *));
2675 void (*layout_sections_again) PARAMS ((void));
2676
2677 /* Array to keep track of which stub sections have been created, and
2678 information on stub grouping. */
2679 struct map_stub {
2680 /* This is the section to which stubs in the group will be attached. */
2681 asection *link_sec;
2682 /* The stub section. */
2683 asection *stub_sec;
2684 } *stub_group;
2685
2686 /* Assorted information used by ppc64_elf_size_stubs. */
721956f4
AM
2687 int top_index;
2688 asection **input_list;
721956f4 2689
65f38f15
AM
2690 /* Short-cuts to get to dynamic linker sections. */
2691 asection *sgot;
2692 asection *srelgot;
2693 asection *splt;
2694 asection *srelplt;
2695 asection *sdynbss;
2696 asection *srelbss;
2697 asection *sglink;
82bd7b59 2698 asection *sfpr;
721956f4
AM
2699 asection *sbrlt;
2700 asection *srelbrlt;
ec338859 2701
411e1bfb
AM
2702 /* Short-cut to first output tls section. */
2703 asection *tls_sec;
2704
2705 /* Shortcut to .__tls_get_addr. */
2706 struct elf_link_hash_entry *tls_get_addr;
2707
2708 /* TLS local dynamic got entry handling. */
2709 union {
2710 bfd_signed_vma refcount;
2711 bfd_vma offset;
2712 } tlsld_got;
2713
5d1634d7 2714 /* Set on error. */
721956f4
AM
2715 unsigned int stub_error;
2716
2717 /* Flag set when small branches are detected. Used to
2718 select suitable defaults for the stub group size. */
2719 unsigned int has_14bit_branch;
2720
805fc799
AM
2721 /* Set if we detect a reference undefined weak symbol. */
2722 unsigned int have_undefweak;
2723
721956f4
AM
2724 /* Incremented every time we size stubs. */
2725 unsigned int stub_iteration;
5d1634d7 2726
ec338859
AM
2727 /* Small local sym to section mapping cache. */
2728 struct sym_sec_cache sym_sec;
65f38f15
AM
2729};
2730
721956f4
AM
2731static struct bfd_hash_entry *stub_hash_newfunc
2732 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
2733static struct bfd_hash_entry *branch_hash_newfunc
2734 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
2735static struct bfd_hash_entry *link_hash_newfunc
2736 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
2737static struct bfd_link_hash_table *ppc64_elf_link_hash_table_create
2738 PARAMS ((bfd *));
2739static void ppc64_elf_link_hash_table_free
2740 PARAMS ((struct bfd_link_hash_table *));
2741static char *ppc_stub_name
2742 PARAMS ((const asection *, const asection *,
2743 const struct ppc_link_hash_entry *, const Elf_Internal_Rela *));
2744static struct ppc_stub_hash_entry *ppc_get_stub_entry
2745 PARAMS ((const asection *, const asection *, struct elf_link_hash_entry *,
2746 const Elf_Internal_Rela *, struct ppc_link_hash_table *));
2747static struct ppc_stub_hash_entry *ppc_add_stub
2748 PARAMS ((const char *, asection *, struct ppc_link_hash_table *));
b34976b6 2749static bfd_boolean create_linkage_sections
721956f4 2750 PARAMS ((bfd *, struct bfd_link_info *));
b34976b6 2751static bfd_boolean create_got_section
721956f4 2752 PARAMS ((bfd *, struct bfd_link_info *));
b34976b6 2753static bfd_boolean ppc64_elf_create_dynamic_sections
721956f4
AM
2754 PARAMS ((bfd *, struct bfd_link_info *));
2755static void ppc64_elf_copy_indirect_symbol
b48fa14c
AM
2756 PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *,
2757 struct elf_link_hash_entry *));
411e1bfb
AM
2758static bfd_boolean update_local_sym_info
2759 PARAMS ((bfd *, Elf_Internal_Shdr *, unsigned long, bfd_vma, int));
2760static bfd_boolean update_plt_info
2761 PARAMS ((bfd *, struct ppc_link_hash_entry *, bfd_vma));
b34976b6 2762static bfd_boolean ppc64_elf_check_relocs
721956f4
AM
2763 PARAMS ((bfd *, struct bfd_link_info *, asection *,
2764 const Elf_Internal_Rela *));
2765static asection * ppc64_elf_gc_mark_hook
1e2f5b6e
AM
2766 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
2767 struct elf_link_hash_entry *, Elf_Internal_Sym *));
b34976b6 2768static bfd_boolean ppc64_elf_gc_sweep_hook
1e2f5b6e
AM
2769 PARAMS ((bfd *, struct bfd_link_info *, asection *,
2770 const Elf_Internal_Rela *));
b34976b6 2771static bfd_boolean func_desc_adjust
721956f4 2772 PARAMS ((struct elf_link_hash_entry *, PTR));
b34976b6 2773static bfd_boolean ppc64_elf_func_desc_adjust
721956f4 2774 PARAMS ((bfd *, struct bfd_link_info *));
b34976b6 2775static bfd_boolean ppc64_elf_adjust_dynamic_symbol
721956f4
AM
2776 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
2777static void ppc64_elf_hide_symbol
b34976b6 2778 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
411e1bfb
AM
2779static bfd_boolean get_sym_h
2780 PARAMS ((struct elf_link_hash_entry **, Elf_Internal_Sym **, asection **,
2781 char **, Elf_Internal_Sym **, unsigned long, bfd *));
e7b938ca 2782static int get_tls_mask
411e1bfb 2783 PARAMS ((char **, Elf_Internal_Sym **, const Elf_Internal_Rela *, bfd *));
b34976b6 2784static bfd_boolean allocate_dynrelocs
721956f4 2785 PARAMS ((struct elf_link_hash_entry *, PTR));
b34976b6 2786static bfd_boolean readonly_dynrelocs
721956f4
AM
2787 PARAMS ((struct elf_link_hash_entry *, PTR));
2788static enum elf_reloc_type_class ppc64_elf_reloc_type_class
2789 PARAMS ((const Elf_Internal_Rela *));
b34976b6 2790static bfd_boolean ppc64_elf_size_dynamic_sections
721956f4 2791 PARAMS ((bfd *, struct bfd_link_info *));
411e1bfb 2792static enum ppc_stub_type ppc_type_of_stub
721956f4
AM
2793 PARAMS ((asection *, const Elf_Internal_Rela *,
2794 struct ppc_link_hash_entry **, bfd_vma));
2795static bfd_byte *build_plt_stub
2796 PARAMS ((bfd *, bfd_byte *, int, int));
b34976b6 2797static bfd_boolean ppc_build_one_stub
721956f4 2798 PARAMS ((struct bfd_hash_entry *, PTR));
b34976b6 2799static bfd_boolean ppc_size_one_stub
721956f4
AM
2800 PARAMS ((struct bfd_hash_entry *, PTR));
2801static void group_sections
b34976b6
AM
2802 PARAMS ((struct ppc_link_hash_table *, bfd_size_type, bfd_boolean));
2803static bfd_boolean ppc64_elf_relocate_section
721956f4
AM
2804 PARAMS ((bfd *, struct bfd_link_info *info, bfd *, asection *, bfd_byte *,
2805 Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms,
2806 asection **));
b34976b6 2807static bfd_boolean ppc64_elf_finish_dynamic_symbol
721956f4
AM
2808 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
2809 Elf_Internal_Sym *));
b34976b6 2810static bfd_boolean ppc64_elf_finish_dynamic_sections
721956f4
AM
2811 PARAMS ((bfd *, struct bfd_link_info *));
2812
65f38f15
AM
2813/* Get the ppc64 ELF linker hash table from a link_info structure. */
2814
2815#define ppc_hash_table(p) \
2816 ((struct ppc_link_hash_table *) ((p)->hash))
2817
721956f4
AM
2818#define ppc_stub_hash_lookup(table, string, create, copy) \
2819 ((struct ppc_stub_hash_entry *) \
2820 bfd_hash_lookup ((table), (string), (create), (copy)))
2821
2822#define ppc_branch_hash_lookup(table, string, create, copy) \
2823 ((struct ppc_branch_hash_entry *) \
2824 bfd_hash_lookup ((table), (string), (create), (copy)))
2825
2826/* Create an entry in the stub hash table. */
2827
2828static struct bfd_hash_entry *
2829stub_hash_newfunc (entry, table, string)
2830 struct bfd_hash_entry *entry;
2831 struct bfd_hash_table *table;
2832 const char *string;
2833{
2834 /* Allocate the structure if it has not already been allocated by a
2835 subclass. */
2836 if (entry == NULL)
2837 {
2838 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
2839 if (entry == NULL)
2840 return entry;
2841 }
2842
2843 /* Call the allocation method of the superclass. */
2844 entry = bfd_hash_newfunc (entry, table, string);
2845 if (entry != NULL)
2846 {
2847 struct ppc_stub_hash_entry *eh;
2848
2849 /* Initialize the local fields. */
2850 eh = (struct ppc_stub_hash_entry *) entry;
2851 eh->stub_sec = NULL;
2852 eh->stub_offset = 0;
2853 eh->target_value = 0;
2854 eh->target_section = NULL;
2855 eh->stub_type = ppc_stub_none;
2856 eh->h = NULL;
2857 eh->id_sec = NULL;
2858 }
2859
2860 return entry;
2861}
2862
2863/* Create an entry in the branch hash table. */
2864
2865static struct bfd_hash_entry *
2866branch_hash_newfunc (entry, table, string)
2867 struct bfd_hash_entry *entry;
2868 struct bfd_hash_table *table;
2869 const char *string;
2870{
2871 /* Allocate the structure if it has not already been allocated by a
2872 subclass. */
2873 if (entry == NULL)
2874 {
2875 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
2876 if (entry == NULL)
2877 return entry;
2878 }
2879
2880 /* Call the allocation method of the superclass. */
2881 entry = bfd_hash_newfunc (entry, table, string);
2882 if (entry != NULL)
2883 {
2884 struct ppc_branch_hash_entry *eh;
2885
2886 /* Initialize the local fields. */
2887 eh = (struct ppc_branch_hash_entry *) entry;
2888 eh->offset = 0;
2889 eh->iter = 0;
2890 }
2891
2892 return entry;
2893}
2894
65f38f15
AM
2895/* Create an entry in a ppc64 ELF linker hash table. */
2896
2897static struct bfd_hash_entry *
2898link_hash_newfunc (entry, table, string)
2899 struct bfd_hash_entry *entry;
2900 struct bfd_hash_table *table;
2901 const char *string;
2902{
2903 /* Allocate the structure if it has not already been allocated by a
2904 subclass. */
2905 if (entry == NULL)
2906 {
2907 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
2908 if (entry == NULL)
2909 return entry;
2910 }
2911
2912 /* Call the allocation method of the superclass. */
2913 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2914 if (entry != NULL)
2915 {
2916 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
2917
721956f4 2918 eh->stub_cache = NULL;
65f38f15 2919 eh->dyn_relocs = NULL;
721956f4 2920 eh->oh = NULL;
e86ce104
AM
2921 eh->is_func = 0;
2922 eh->is_func_descriptor = 0;
1e2f5b6e 2923 eh->is_entry = 0;
e7b938ca 2924 eh->tls_mask = 0;
65f38f15
AM
2925 }
2926
2927 return entry;
2928}
2929
2930/* Create a ppc64 ELF linker hash table. */
2931
2932static struct bfd_link_hash_table *
2933ppc64_elf_link_hash_table_create (abfd)
2934 bfd *abfd;
2935{
2936 struct ppc_link_hash_table *htab;
2937 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
2938
e2d34d7d 2939 htab = (struct ppc_link_hash_table *) bfd_malloc (amt);
65f38f15
AM
2940 if (htab == NULL)
2941 return NULL;
2942
2943 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
2944 {
e2d34d7d 2945 free (htab);
65f38f15
AM
2946 return NULL;
2947 }
2948
721956f4
AM
2949 /* Init the stub hash table too. */
2950 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
2951 return NULL;
2952
2953 /* And the branch hash table. */
2954 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
2955 return NULL;
2956
2957 htab->stub_bfd = NULL;
2958 htab->add_stub_section = NULL;
2959 htab->layout_sections_again = NULL;
2960 htab->stub_group = NULL;
65f38f15
AM
2961 htab->sgot = NULL;
2962 htab->srelgot = NULL;
2963 htab->splt = NULL;
2964 htab->srelplt = NULL;
2965 htab->sdynbss = NULL;
2966 htab->srelbss = NULL;
2967 htab->sglink = NULL;
82bd7b59 2968 htab->sfpr = NULL;
721956f4
AM
2969 htab->sbrlt = NULL;
2970 htab->srelbrlt = NULL;
411e1bfb 2971 htab->tls_sec = NULL;
58ac9f71 2972 htab->tls_get_addr = NULL;
411e1bfb 2973 htab->tlsld_got.refcount = 0;
721956f4
AM
2974 htab->stub_error = 0;
2975 htab->has_14bit_branch = 0;
805fc799 2976 htab->have_undefweak = 0;
721956f4 2977 htab->stub_iteration = 0;
ec338859 2978 htab->sym_sec.abfd = NULL;
951fd09b
AM
2979 /* Initializing two fields of the union is just cosmetic. We really
2980 only care about glist, but when compiled on a 32-bit host the
2981 bfd_vma fields are larger. Setting the bfd_vma to zero makes
2982 debugger inspection of these fields look nicer. */
2983 htab->elf.init_refcount.refcount = 0;
411e1bfb 2984 htab->elf.init_refcount.glist = NULL;
951fd09b 2985 htab->elf.init_offset.offset = 0;
411e1bfb 2986 htab->elf.init_offset.glist = NULL;
65f38f15
AM
2987
2988 return &htab->elf.root;
2989}
2990
721956f4
AM
2991/* Free the derived linker hash table. */
2992
2993static void
2994ppc64_elf_link_hash_table_free (hash)
2995 struct bfd_link_hash_table *hash;
2996{
2997 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
2998
2999 bfd_hash_table_free (&ret->stub_hash_table);
3000 bfd_hash_table_free (&ret->branch_hash_table);
3001 _bfd_generic_link_hash_table_free (hash);
3002}
3003
3004/* Build a name for an entry in the stub hash table. */
3005
3006static char *
3007ppc_stub_name (input_section, sym_sec, h, rel)
3008 const asection *input_section;
3009 const asection *sym_sec;
3010 const struct ppc_link_hash_entry *h;
3011 const Elf_Internal_Rela *rel;
3012{
3013 char *stub_name;
3014 bfd_size_type len;
3015
3016 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3017 offsets from a sym as a branch target? In fact, we could
3018 probably assume the addend is always zero. */
3019 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3020
3021 if (h)
3022 {
3023 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3024 stub_name = bfd_malloc (len);
3025 if (stub_name != NULL)
3026 {
3027 sprintf (stub_name, "%08x_%s+%x",
3028 input_section->id & 0xffffffff,
3029 h->elf.root.root.string,
3030 (int) rel->r_addend & 0xffffffff);
3031 }
3032 }
3033 else
3034 {
3035 len = 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1;
3036 stub_name = bfd_malloc (len);
3037 if (stub_name != NULL)
3038 {
3039 sprintf (stub_name, "%08x_%x:%x+%x",
3040 input_section->id & 0xffffffff,
3041 sym_sec->id & 0xffffffff,
3042 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3043 (int) rel->r_addend & 0xffffffff);
3044 }
3045 }
3046 return stub_name;
3047}
3048
3049/* Look up an entry in the stub hash. Stub entries are cached because
3050 creating the stub name takes a bit of time. */
3051
3052static struct ppc_stub_hash_entry *
3053ppc_get_stub_entry (input_section, sym_sec, hash, rel, htab)
3054 const asection *input_section;
3055 const asection *sym_sec;
3056 struct elf_link_hash_entry *hash;
3057 const Elf_Internal_Rela *rel;
3058 struct ppc_link_hash_table *htab;
3059{
3060 struct ppc_stub_hash_entry *stub_entry;
3061 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3062 const asection *id_sec;
3063
3064 /* If this input section is part of a group of sections sharing one
3065 stub section, then use the id of the first section in the group.
3066 Stub names need to include a section id, as there may well be
3067 more than one stub used to reach say, printf, and we need to
3068 distinguish between them. */
3069 id_sec = htab->stub_group[input_section->id].link_sec;
3070
3071 if (h != NULL && h->stub_cache != NULL
3072 && h->stub_cache->h == h
3073 && h->stub_cache->id_sec == id_sec)
3074 {
3075 stub_entry = h->stub_cache;
3076 }
3077 else
3078 {
3079 char *stub_name;
3080
3081 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3082 if (stub_name == NULL)
3083 return NULL;
3084
3085 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3086 stub_name, FALSE, FALSE);
721956f4
AM
3087 if (h != NULL)
3088 h->stub_cache = stub_entry;
3089
3090 free (stub_name);
3091 }
3092
3093 return stub_entry;
3094}
3095
3096/* Add a new stub entry to the stub hash. Not all fields of the new
3097 stub entry are initialised. */
3098
3099static struct ppc_stub_hash_entry *
3100ppc_add_stub (stub_name, section, htab)
3101 const char *stub_name;
3102 asection *section;
3103 struct ppc_link_hash_table *htab;
3104{
3105 asection *link_sec;
3106 asection *stub_sec;
3107 struct ppc_stub_hash_entry *stub_entry;
3108
3109 link_sec = htab->stub_group[section->id].link_sec;
3110 stub_sec = htab->stub_group[section->id].stub_sec;
3111 if (stub_sec == NULL)
3112 {
3113 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3114 if (stub_sec == NULL)
3115 {
d4c88bbb 3116 size_t namelen;
721956f4
AM
3117 bfd_size_type len;
3118 char *s_name;
3119
d4c88bbb
AM
3120 namelen = strlen (link_sec->name);
3121 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM
3122 s_name = bfd_alloc (htab->stub_bfd, len);
3123 if (s_name == NULL)
3124 return NULL;
3125
d4c88bbb
AM
3126 memcpy (s_name, link_sec->name, namelen);
3127 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM
3128 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3129 if (stub_sec == NULL)
3130 return NULL;
3131 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3132 }
3133 htab->stub_group[section->id].stub_sec = stub_sec;
3134 }
3135
3136 /* Enter this entry into the linker stub hash table. */
3137 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3138 TRUE, FALSE);
721956f4
AM
3139 if (stub_entry == NULL)
3140 {
3141 (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
3142 bfd_archive_filename (section->owner),
3143 stub_name);
3144 return NULL;
3145 }
3146
3147 stub_entry->stub_sec = stub_sec;
3148 stub_entry->stub_offset = 0;
3149 stub_entry->id_sec = link_sec;
3150 return stub_entry;
3151}
3152
82bd7b59
AM
3153/* Create sections for linker generated code. */
3154
b34976b6 3155static bfd_boolean
82bd7b59
AM
3156create_linkage_sections (dynobj, info)
3157 bfd *dynobj;
3158 struct bfd_link_info *info;
3159{
3160 struct ppc_link_hash_table *htab;
3161 flagword flags;
3162
3163 htab = ppc_hash_table (info);
3164
3165 /* Create .sfpr for code to save and restore fp regs. */
3166 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3167 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
721956f4 3168 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
82bd7b59
AM
3169 if (htab->sfpr == NULL
3170 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3171 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3172 return FALSE;
82bd7b59 3173
721956f4
AM
3174 /* Create .glink for lazy dynamic linking support. */
3175 htab->sglink = bfd_make_section_anyway (dynobj, ".glink");
82bd7b59
AM
3176 if (htab->sglink == NULL
3177 || ! bfd_set_section_flags (dynobj, htab->sglink, flags)
3178 || ! bfd_set_section_alignment (dynobj, htab->sglink, 2))
b34976b6 3179 return FALSE;
82bd7b59 3180
721956f4
AM
3181 /* Create .branch_lt for plt_branch stubs. */
3182 flags = (SEC_ALLOC | SEC_LOAD
3183 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3184 htab->sbrlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3185 if (htab->sbrlt == NULL
3186 || ! bfd_set_section_flags (dynobj, htab->sbrlt, flags)
3187 || ! bfd_set_section_alignment (dynobj, htab->sbrlt, 3))
b34976b6 3188 return FALSE;
721956f4
AM
3189
3190 if (info->shared)
3191 {
3192 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3193 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1e2f5b6e 3194 htab->srelbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
721956f4
AM
3195 if (!htab->srelbrlt
3196 || ! bfd_set_section_flags (dynobj, htab->srelbrlt, flags)
3197 || ! bfd_set_section_alignment (dynobj, htab->srelbrlt, 3))
b34976b6 3198 return FALSE;
721956f4 3199 }
b34976b6 3200 return TRUE;
82bd7b59
AM
3201}
3202
65f38f15
AM
3203/* Create .got and .rela.got sections in DYNOBJ, and set up
3204 shortcuts to them in our hash table. */
3205
b34976b6 3206static bfd_boolean
65f38f15
AM
3207create_got_section (dynobj, info)
3208 bfd *dynobj;
3209 struct bfd_link_info *info;
3210{
3211 struct ppc_link_hash_table *htab;
3212
3213 if (! _bfd_elf_create_got_section (dynobj, info))
b34976b6 3214 return FALSE;
65f38f15
AM
3215
3216 htab = ppc_hash_table (info);
3217 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
3218 if (!htab->sgot)
3219 abort ();
3220
3221 htab->srelgot = bfd_make_section (dynobj, ".rela.got");
3222 if (!htab->srelgot
3223 || ! bfd_set_section_flags (dynobj, htab->srelgot,
3224 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
3225 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3226 | SEC_READONLY))
3227 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 3))
b34976b6
AM
3228 return FALSE;
3229 return TRUE;
65f38f15 3230}
5bd4f169 3231
82bd7b59 3232/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3233
b34976b6 3234static bfd_boolean
65f38f15
AM
3235ppc64_elf_create_dynamic_sections (dynobj, info)
3236 bfd *dynobj;
5bd4f169
AM
3237 struct bfd_link_info *info;
3238{
65f38f15 3239 struct ppc_link_hash_table *htab;
5bd4f169 3240
65f38f15
AM
3241 htab = ppc_hash_table (info);
3242 if (!htab->sgot && !create_got_section (dynobj, info))
b34976b6 3243 return FALSE;
5bd4f169 3244
65f38f15 3245 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3246 return FALSE;
65f38f15
AM
3247
3248 htab->splt = bfd_get_section_by_name (dynobj, ".plt");
3249 htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3250 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
3251 if (!info->shared)
3252 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
3253
3254 if (!htab->splt || !htab->srelplt || !htab->sdynbss
3255 || (!info->shared && !htab->srelbss))
3256 abort ();
3257
b34976b6 3258 return TRUE;
5bd4f169
AM
3259}
3260
65f38f15
AM
3261/* Copy the extra info we tack onto an elf_link_hash_entry. */
3262
3263static void
b48fa14c 3264ppc64_elf_copy_indirect_symbol (bed, dir, ind)
411e1bfb 3265 struct elf_backend_data *bed ATTRIBUTE_UNUSED;
65f38f15
AM
3266 struct elf_link_hash_entry *dir, *ind;
3267{
3268 struct ppc_link_hash_entry *edir, *eind;
3269
3270 edir = (struct ppc_link_hash_entry *) dir;
3271 eind = (struct ppc_link_hash_entry *) ind;
3272
411e1bfb 3273 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3274 if (eind->dyn_relocs != NULL)
65f38f15 3275 {
bbd7ec4a
AM
3276 if (edir->dyn_relocs != NULL)
3277 {
3278 struct ppc_dyn_relocs **pp;
3279 struct ppc_dyn_relocs *p;
3280
411e1bfb 3281 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM
3282 abort ();
3283
3284 /* Add reloc counts against the weak sym to the strong sym
3285 list. Merge any entries against the same section. */
3286 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3287 {
3288 struct ppc_dyn_relocs *q;
3289
3290 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3291 if (q->sec == p->sec)
3292 {
3293 q->pc_count += p->pc_count;
3294 q->count += p->count;
3295 *pp = p->next;
3296 break;
3297 }
3298 if (q == NULL)
3299 pp = &p->next;
3300 }
3301 *pp = edir->dyn_relocs;
3302 }
3303
65f38f15
AM
3304 edir->dyn_relocs = eind->dyn_relocs;
3305 eind->dyn_relocs = NULL;
3306 }
65f38f15 3307
6349e628
AM
3308 edir->is_func |= eind->is_func;
3309 edir->is_func_descriptor |= eind->is_func_descriptor;
3310 edir->is_entry |= eind->is_entry;
58ac9f71 3311 edir->tls_mask |= eind->tls_mask;
6349e628
AM
3312
3313 /* Copy down any references that we may have already seen to the
3314 symbol which just became indirect. */
3315 edir->elf.elf_link_hash_flags |=
3316 (eind->elf.elf_link_hash_flags
3317 & (ELF_LINK_HASH_REF_DYNAMIC
3318 | ELF_LINK_HASH_REF_REGULAR
3319 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
3320 | ELF_LINK_NON_GOT_REF));
3321
3322 /* If we were called to copy over info for a weak sym, that's all. */
3323 if (eind->elf.root.type != bfd_link_hash_indirect)
3324 return;
3325
3326 /* Copy over got entries. */
411e1bfb
AM
3327 if (eind->elf.got.glist != NULL)
3328 {
3329 if (edir->elf.got.glist != NULL)
3330 {
3331 struct got_entry **entp;
3332 struct got_entry *ent;
3333
3334 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3335 {
3336 struct got_entry *dent;
3337
3338 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3339 if (dent->addend == ent->addend
3340 && dent->tls_type == ent->tls_type)
3341 {
3342 dent->got.refcount += ent->got.refcount;
3343 *entp = ent->next;
3344 break;
3345 }
3346 if (dent == NULL)
3347 entp = &ent->next;
3348 }
3349 *entp = edir->elf.got.glist;
3350 }
3351
3352 edir->elf.got.glist = eind->elf.got.glist;
3353 eind->elf.got.glist = NULL;
3354 }
3355
3356 /* And plt entries. */
3357 if (eind->elf.plt.plist != NULL)
3358 {
3359 if (edir->elf.plt.plist != NULL)
3360 {
3361 struct plt_entry **entp;
3362 struct plt_entry *ent;
3363
3364 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3365 {
3366 struct plt_entry *dent;
3367
3368 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3369 if (dent->addend == ent->addend)
3370 {
3371 dent->plt.refcount += ent->plt.refcount;
3372 *entp = ent->next;
3373 break;
3374 }
3375 if (dent == NULL)
3376 entp = &ent->next;
3377 }
3378 *entp = edir->elf.plt.plist;
3379 }
3380
3381 edir->elf.plt.plist = eind->elf.plt.plist;
3382 eind->elf.plt.plist = NULL;
3383 }
3384
411e1bfb
AM
3385 if (edir->elf.dynindx == -1)
3386 {
3387 edir->elf.dynindx = eind->elf.dynindx;
3388 edir->elf.dynstr_index = eind->elf.dynstr_index;
3389 eind->elf.dynindx = -1;
3390 eind->elf.dynstr_index = 0;
3391 }
3392 else
3393 BFD_ASSERT (eind->elf.dynindx == -1);
3394}
3395
3396/* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3397 symbols undefined on the command-line. */
3398
3399bfd_boolean
3400ppc64_elf_mark_entry_syms (info)
3401 struct bfd_link_info *info;
3402{
3403 struct ppc_link_hash_table *htab;
3404 struct bfd_sym_chain *sym;
3405
3406 htab = ppc_hash_table (info);
3407 for (sym = info->gc_sym_list; sym; sym = sym->next)
3408 {
3409 struct elf_link_hash_entry *h;
3410
3411 h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
3412 if (h != NULL)
3413 ((struct ppc_link_hash_entry *) h)->is_entry = 1;
3414 }
3415 return TRUE;
3416}
3417
3418static bfd_boolean
3419update_local_sym_info (abfd, symtab_hdr, r_symndx, r_addend, tls_type)
3420 bfd *abfd;
3421 Elf_Internal_Shdr *symtab_hdr;
3422 unsigned long r_symndx;
3423 bfd_vma r_addend;
3424 int tls_type;
3425{
3426 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 3427 char *local_got_tls_masks;
411e1bfb
AM
3428
3429 if (local_got_ents == NULL)
3430 {
3431 bfd_size_type size = symtab_hdr->sh_info;
3432
e7b938ca 3433 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
411e1bfb
AM
3434 local_got_ents = (struct got_entry **) bfd_zalloc (abfd, size);
3435 if (local_got_ents == NULL)
3436 return FALSE;
3437 elf_local_got_ents (abfd) = local_got_ents;
3438 }
3439
3440 if ((tls_type & TLS_EXPLICIT) == 0)
3441 {
3442 struct got_entry *ent;
3443
3444 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
3445 if (ent->addend == r_addend && ent->tls_type == tls_type)
3446 break;
3447 if (ent == NULL)
3448 {
3449 bfd_size_type amt = sizeof (*ent);
3450 ent = (struct got_entry *) bfd_alloc (abfd, amt);
3451 if (ent == NULL)
3452 return FALSE;
3453 ent->next = local_got_ents[r_symndx];
3454 ent->addend = r_addend;
3455 ent->tls_type = tls_type;
3456 ent->got.refcount = 0;
3457 local_got_ents[r_symndx] = ent;
3458 }
3459 ent->got.refcount += 1;
3460 }
3461
e7b938ca
AM
3462 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
3463 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 3464 return TRUE;
65f38f15
AM
3465}
3466
411e1bfb
AM
3467static bfd_boolean
3468update_plt_info (abfd, eh, addend)
3469 bfd *abfd;
3470 struct ppc_link_hash_entry *eh;
3471 bfd_vma addend;
1e2f5b6e 3472{
411e1bfb 3473 struct plt_entry *ent;
1e2f5b6e 3474
411e1bfb
AM
3475 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
3476 if (ent->addend == addend)
3477 break;
3478 if (ent == NULL)
1e2f5b6e 3479 {
411e1bfb
AM
3480 bfd_size_type amt = sizeof (*ent);
3481 ent = (struct plt_entry *) bfd_alloc (abfd, amt);
3482 if (ent == NULL)
3483 return FALSE;
3484 ent->next = eh->elf.plt.plist;
3485 ent->addend = addend;
3486 ent->plt.refcount = 0;
3487 eh->elf.plt.plist = ent;
1e2f5b6e 3488 }
411e1bfb
AM
3489 ent->plt.refcount += 1;
3490 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3491 eh->is_func = 1;
b34976b6 3492 return TRUE;
1e2f5b6e
AM
3493}
3494
5bd4f169 3495/* Look through the relocs for a section during the first phase, and
65f38f15 3496 calculate needed space in the global offset table, procedure
5d1634d7 3497 linkage table, and dynamic reloc sections. */
5bd4f169 3498
b34976b6 3499static bfd_boolean
5bd4f169
AM
3500ppc64_elf_check_relocs (abfd, info, sec, relocs)
3501 bfd *abfd;
3502 struct bfd_link_info *info;
3503 asection *sec;
3504 const Elf_Internal_Rela *relocs;
3505{
65f38f15 3506 struct ppc_link_hash_table *htab;
5bd4f169
AM
3507 Elf_Internal_Shdr *symtab_hdr;
3508 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3509 const Elf_Internal_Rela *rel;
3510 const Elf_Internal_Rela *rel_end;
5bd4f169 3511 asection *sreloc;
1e2f5b6e 3512 asection **opd_sym_map;
5bd4f169
AM
3513
3514 if (info->relocateable)
b34976b6 3515 return TRUE;
5bd4f169 3516
65f38f15 3517 htab = ppc_hash_table (info);
5bd4f169 3518 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM
3519
3520 sym_hashes = elf_sym_hashes (abfd);
3521 sym_hashes_end = (sym_hashes
1e2f5b6e
AM
3522 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
3523 - symtab_hdr->sh_info);
5bd4f169
AM
3524
3525 sreloc = NULL;
1e2f5b6e
AM
3526 opd_sym_map = NULL;
3527 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
3528 {
3529 /* Garbage collection needs some extra help with .opd sections.
3530 We don't want to necessarily keep everything referenced by
3531 relocs in .opd, as that would keep all functions. Instead,
3532 if we reference an .opd symbol (a function descriptor), we
3533 want to keep the function code symbol's section. This is
3534 easy for global symbols, but for local syms we need to keep
3535 information about the associated function section. Later, if
3536 edit_opd deletes entries, we'll use this array to adjust
3537 local syms in .opd. */
3538 union opd_info {
3539 asection *func_section;
3540 long entry_adjust;
3541 };
3542 bfd_size_type amt;
3543
3544 amt = sec->_raw_size * sizeof (union opd_info) / 24;
3545 opd_sym_map = (asection **) bfd_zalloc (abfd, amt);
3546 if (opd_sym_map == NULL)
b34976b6 3547 return FALSE;
f0abc2a1 3548 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 3549 }
5bd4f169 3550
82bd7b59
AM
3551 if (htab->elf.dynobj == NULL)
3552 htab->elf.dynobj = abfd;
3553 if (htab->sfpr == NULL
3554 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 3555 return FALSE;
82bd7b59 3556
5bd4f169
AM
3557 rel_end = relocs + sec->reloc_count;
3558 for (rel = relocs; rel < rel_end; rel++)
3559 {
3560 unsigned long r_symndx;
3561 struct elf_link_hash_entry *h;
04c9666a 3562 enum elf_ppc64_reloc_type r_type;
411e1bfb 3563 int tls_type = 0;
5bd4f169
AM
3564
3565 r_symndx = ELF64_R_SYM (rel->r_info);
3566 if (r_symndx < symtab_hdr->sh_info)
3567 h = NULL;
3568 else
3569 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3570
04c9666a 3571 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
a33d1f77 3572 switch (r_type)
5bd4f169 3573 {
411e1bfb
AM
3574 case R_PPC64_GOT_TLSLD16:
3575 case R_PPC64_GOT_TLSLD16_LO:
3576 case R_PPC64_GOT_TLSLD16_HI:
3577 case R_PPC64_GOT_TLSLD16_HA:
3578 htab->tlsld_got.refcount += 1;
951fd09b 3579 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
3580 goto dogottls;
3581
3582 case R_PPC64_GOT_TLSGD16:
3583 case R_PPC64_GOT_TLSGD16_LO:
3584 case R_PPC64_GOT_TLSGD16_HI:
3585 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 3586 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
3587 goto dogottls;
3588
3589 case R_PPC64_GOT_TPREL16_DS:
3590 case R_PPC64_GOT_TPREL16_LO_DS:
3591 case R_PPC64_GOT_TPREL16_HI:
3592 case R_PPC64_GOT_TPREL16_HA:
3593 if (info->shared)
3594 info->flags |= DF_STATIC_TLS;
3595 tls_type = TLS_TLS | TLS_TPREL;
3596 goto dogottls;
3597
3598 case R_PPC64_GOT_DTPREL16_DS:
3599 case R_PPC64_GOT_DTPREL16_LO_DS:
3600 case R_PPC64_GOT_DTPREL16_HI:
3601 case R_PPC64_GOT_DTPREL16_HA:
3602 tls_type = TLS_TLS | TLS_DTPREL;
3603 dogottls:
3604 sec->has_tls_reloc = 1;
3605 /* Fall thru */
3606
5bd4f169 3607 case R_PPC64_GOT16:
5bd4f169 3608 case R_PPC64_GOT16_DS:
65f38f15
AM
3609 case R_PPC64_GOT16_HA:
3610 case R_PPC64_GOT16_HI:
3611 case R_PPC64_GOT16_LO:
5bd4f169 3612 case R_PPC64_GOT16_LO_DS:
65f38f15 3613 /* This symbol requires a global offset table entry. */
82bd7b59
AM
3614 if (htab->sgot == NULL
3615 && !create_got_section (htab->elf.dynobj, info))
b34976b6 3616 return FALSE;
5bd4f169
AM
3617
3618 if (h != NULL)
3619 {
411e1bfb
AM
3620 struct ppc_link_hash_entry *eh;
3621 struct got_entry *ent;
65f38f15 3622
411e1bfb
AM
3623 eh = (struct ppc_link_hash_entry *) h;
3624 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
3625 if (ent->addend == rel->r_addend
3626 && ent->tls_type == tls_type)
3627 break;
3628 if (ent == NULL)
5bd4f169 3629 {
411e1bfb
AM
3630 bfd_size_type amt = sizeof (*ent);
3631 ent = (struct got_entry *) bfd_alloc (abfd, amt);
3632 if (ent == NULL)
b34976b6 3633 return FALSE;
411e1bfb
AM
3634 ent->next = eh->elf.got.glist;
3635 ent->addend = rel->r_addend;
3636 ent->tls_type = tls_type;
3637 ent->got.refcount = 0;
3638 eh->elf.got.glist = ent;
5bd4f169 3639 }
411e1bfb 3640 ent->got.refcount += 1;
e7b938ca 3641 eh->tls_mask |= tls_type;
5bd4f169 3642 }
411e1bfb
AM
3643 else
3644 /* This is a global offset table entry for a local symbol. */
3645 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3646 rel->r_addend, tls_type))
3647 return FALSE;
5bd4f169
AM
3648 break;
3649
5bd4f169 3650 case R_PPC64_PLT16_HA:
65f38f15
AM
3651 case R_PPC64_PLT16_HI:
3652 case R_PPC64_PLT16_LO:
3653 case R_PPC64_PLT32:
3654 case R_PPC64_PLT64:
5bd4f169 3655 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM
3656 actually build the entry in adjust_dynamic_symbol,
3657 because this might be a case of linking PIC code without
3658 linking in any dynamic objects, in which case we don't
3659 need to generate a procedure linkage table after all. */
5bd4f169
AM
3660 if (h == NULL)
3661 {
3662 /* It does not make sense to have a procedure linkage
3fad3c7c 3663 table entry for a local symbol. */
5bd4f169 3664 bfd_set_error (bfd_error_bad_value);
b34976b6 3665 return FALSE;
5bd4f169 3666 }
411e1bfb
AM
3667 else
3668 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3669 rel->r_addend))
3670 return FALSE;
5bd4f169
AM
3671 break;
3672
3673 /* The following relocations don't need to propagate the
3674 relocation if linking a shared object since they are
3675 section relative. */
3676 case R_PPC64_SECTOFF:
3677 case R_PPC64_SECTOFF_LO:
3678 case R_PPC64_SECTOFF_HI:
3679 case R_PPC64_SECTOFF_HA:
3680 case R_PPC64_SECTOFF_DS:
3681 case R_PPC64_SECTOFF_LO_DS:
3682 case R_PPC64_TOC16:
3683 case R_PPC64_TOC16_LO:
3684 case R_PPC64_TOC16_HI:
3685 case R_PPC64_TOC16_HA:
3686 case R_PPC64_TOC16_DS:
3687 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM
3688 case R_PPC64_DTPREL16:
3689 case R_PPC64_DTPREL16_LO:
3690 case R_PPC64_DTPREL16_HI:
3691 case R_PPC64_DTPREL16_HA:
3692 case R_PPC64_DTPREL16_DS:
3693 case R_PPC64_DTPREL16_LO_DS:
3694 case R_PPC64_DTPREL16_HIGHER:
3695 case R_PPC64_DTPREL16_HIGHERA:
3696 case R_PPC64_DTPREL16_HIGHEST:
3697 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM
3698 break;
3699
3700 /* This relocation describes the C++ object vtable hierarchy.
3701 Reconstruct it for later use during GC. */
3702 case R_PPC64_GNU_VTINHERIT:
3703 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3704 return FALSE;
5bd4f169
AM
3705 break;
3706
3707 /* This relocation describes which C++ vtable entries are actually
3708 used. Record for later use during GC. */
3709 case R_PPC64_GNU_VTENTRY:
3710 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 3711 return FALSE;
5bd4f169
AM
3712 break;
3713
721956f4
AM
3714 case R_PPC64_REL14:
3715 case R_PPC64_REL14_BRTAKEN:
3716 case R_PPC64_REL14_BRNTAKEN:
3717 htab->has_14bit_branch = 1;
3718 /* Fall through. */
3719
5d1634d7 3720 case R_PPC64_REL24:
e86ce104
AM
3721 if (h != NULL
3722 && h->root.root.string[0] == '.'
3723 && h->root.root.string[1] != 0)
5d1634d7
AM
3724 {
3725 /* We may need a .plt entry if the function this reloc
3726 refers to is in a shared lib. */
411e1bfb
AM
3727 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3728 rel->r_addend))
3729 return FALSE;
3730 if (h == htab->tls_get_addr)
3731 sec->has_tls_reloc = 1;
a48ebf4d
AM
3732 else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15)
3733 == 0)
3734 && (h->root.root.string[15] == 0
3735 || h->root.root.string[15] == '@'))
411e1bfb
AM
3736 {
3737 htab->tls_get_addr = h;
3738 sec->has_tls_reloc = 1;
3739 }
3740 }
3741 break;
3742
3743 case R_PPC64_TPREL64:
3744 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
3745 if (info->shared)
3746 info->flags |= DF_STATIC_TLS;
3747 goto dotlstoc;
3748
3749 case R_PPC64_DTPMOD64:
3750 if (rel + 1 < rel_end
3751 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
3752 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 3753 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 3754 else
951fd09b 3755 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM
3756 goto dotlstoc;
3757
3758 case R_PPC64_DTPREL64:
3759 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
3760 if (rel != relocs
3761 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
3762 && rel[-1].r_offset == rel->r_offset - 8)
3763 /* This is the second reloc of a dtpmod, dtprel pair.
3764 Don't mark with TLS_DTPREL. */
3765 goto dodyn;
3766
3767 dotlstoc:
3768 sec->has_tls_reloc = 1;
3769 if (h != NULL)
3770 {
3771 struct ppc_link_hash_entry *eh;
3772 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 3773 eh->tls_mask |= tls_type;
411e1bfb
AM
3774 }
3775 else
3776 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3777 rel->r_addend, tls_type))
3778 return FALSE;
3779
3780 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3781 {
e7b938ca 3782 /* One extra to simplify get_tls_mask. */
951fd09b 3783 bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1;
411e1bfb
AM
3784 ppc64_elf_section_data (sec)->t_symndx
3785 = (unsigned *) bfd_zalloc (abfd, amt);
3786 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3787 return FALSE;
3788 }
3789 BFD_ASSERT (rel->r_offset % 8 == 0);
3790 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM
3791
3792 /* Mark the second slot of a GD or LD entry.
3793 -1 to indicate GD and -2 to indicate LD. */
3794 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3795 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
3796 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3797 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM
3798 goto dodyn;
3799
3800 case R_PPC64_TPREL16:
3801 case R_PPC64_TPREL16_LO:
3802 case R_PPC64_TPREL16_HI:
3803 case R_PPC64_TPREL16_HA:
3804 case R_PPC64_TPREL16_DS:
3805 case R_PPC64_TPREL16_LO_DS:
3806 case R_PPC64_TPREL16_HIGHER:
3807 case R_PPC64_TPREL16_HIGHERA:
3808 case R_PPC64_TPREL16_HIGHEST:
3809 case R_PPC64_TPREL16_HIGHESTA:
3810 if (info->shared)
3811 {
3812 info->flags |= DF_STATIC_TLS;
3813 goto dodyn;
5d1634d7
AM
3814 }
3815 break;
3816
e86ce104 3817 case R_PPC64_ADDR64:
1e2f5b6e 3818 if (opd_sym_map != NULL
e86ce104
AM
3819 && h != NULL
3820 && h->root.root.string[0] == '.'
3821 && h->root.root.string[1] != 0)
3822 {
3823 struct elf_link_hash_entry *fdh;
3824
3825 fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1,
b34976b6 3826 FALSE, FALSE, FALSE);
e86ce104
AM
3827 if (fdh != NULL)
3828 {
e86ce104 3829 ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1;
721956f4 3830 ((struct ppc_link_hash_entry *) fdh)->oh = h;
e86ce104 3831 ((struct ppc_link_hash_entry *) h)->is_func = 1;
721956f4 3832 ((struct ppc_link_hash_entry *) h)->oh = fdh;
e86ce104
AM
3833 }
3834 }
1e2f5b6e
AM
3835 if (opd_sym_map != NULL
3836 && h == NULL
3837 && rel + 1 < rel_end
04c9666a 3838 && ((enum elf_ppc64_reloc_type) ELF64_R_TYPE ((rel + 1)->r_info)
1e2f5b6e
AM
3839 == R_PPC64_TOC))
3840 {
3841 asection *s;
3842
3843 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3844 r_symndx);
3845 if (s == NULL)
b34976b6 3846 return FALSE;
1e2f5b6e
AM
3847 else if (s != sec)
3848 opd_sym_map[rel->r_offset / 24] = s;
3849 }
e86ce104
AM
3850 /* Fall through. */
3851
04c9666a 3852 case R_PPC64_REL30:
5bd4f169 3853 case R_PPC64_REL32:
04c9666a 3854 case R_PPC64_REL64:
65f38f15
AM
3855 case R_PPC64_ADDR14:
3856 case R_PPC64_ADDR14_BRNTAKEN:
3857 case R_PPC64_ADDR14_BRTAKEN:
3858 case R_PPC64_ADDR16:
3859 case R_PPC64_ADDR16_DS:
3860 case R_PPC64_ADDR16_HA:
3861 case R_PPC64_ADDR16_HI:
3862 case R_PPC64_ADDR16_HIGHER:
3863 case R_PPC64_ADDR16_HIGHERA:
3864 case R_PPC64_ADDR16_HIGHEST:
3865 case R_PPC64_ADDR16_HIGHESTA:
3866 case R_PPC64_ADDR16_LO:
3867 case R_PPC64_ADDR16_LO_DS:
3868 case R_PPC64_ADDR24:
65f38f15 3869 case R_PPC64_ADDR32:
65f38f15
AM
3870 case R_PPC64_UADDR16:
3871 case R_PPC64_UADDR32:
3872 case R_PPC64_UADDR64:
5bd4f169 3873 case R_PPC64_TOC:
41bd81ab 3874 /* Don't propagate .opd relocs. */
1e2f5b6e 3875 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 3876 break;
e86ce104 3877
65f38f15
AM
3878 /* If we are creating a shared library, and this is a reloc
3879 against a global symbol, or a non PC relative reloc
3880 against a local symbol, then we need to copy the reloc
3881 into the shared library. However, if we are linking with
3882 -Bsymbolic, we do not need to copy a reloc against a
3883 global symbol which is defined in an object we are
3884 including in the link (i.e., DEF_REGULAR is set). At
3885 this point we have not seen all the input files, so it is
3886 possible that DEF_REGULAR is not set now but will be set
3887 later (it is never cleared). In case of a weak definition,
3888 DEF_REGULAR may be cleared later by a strong definition in
3889 a shared library. We account for that possibility below by
3890 storing information in the relocs_copied field of the hash
3891 table entry. A similar situation occurs when creating
3892 shared libraries and symbol visibility changes render the
3893 symbol local.
3894
3895 If on the other hand, we are creating an executable, we
3896 may need to keep relocations for symbols satisfied by a
3897 dynamic library if we manage to avoid copy relocs for the
3898 symbol. */
411e1bfb 3899 dodyn:
65f38f15
AM
3900 if ((info->shared
3901 && (sec->flags & SEC_ALLOC) != 0
411e1bfb 3902 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM
3903 || (h != NULL
3904 && (! info->symbolic
3905 || h->root.type == bfd_link_hash_defweak
3906 || (h->elf_link_hash_flags
3907 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
3908 || (!info->shared
3909 && (sec->flags & SEC_ALLOC) != 0
3910 && h != NULL
3911 && (h->root.type == bfd_link_hash_defweak
3912 || (h->elf_link_hash_flags
3913 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
5bd4f169 3914 {
ec338859
AM
3915 struct ppc_dyn_relocs *p;
3916 struct ppc_dyn_relocs **head;
3917
65f38f15
AM
3918 /* We must copy these reloc types into the output file.
3919 Create a reloc section in dynobj and make room for
3920 this reloc. */
5bd4f169
AM
3921 if (sreloc == NULL)
3922 {
3923 const char *name;
65f38f15 3924 bfd *dynobj;
5bd4f169
AM
3925
3926 name = (bfd_elf_string_from_elf_section
3927 (abfd,
3928 elf_elfheader (abfd)->e_shstrndx,
3929 elf_section_data (sec)->rel_hdr.sh_name));
3930 if (name == NULL)
b34976b6 3931 return FALSE;
5bd4f169 3932
65f38f15
AM
3933 if (strncmp (name, ".rela", 5) != 0
3934 || strcmp (bfd_get_section_name (abfd, sec),
3935 name + 5) != 0)
3936 {
3937 (*_bfd_error_handler)
3938 (_("%s: bad relocation section name `%s\'"),
3939 bfd_archive_filename (abfd), name);
5d1634d7 3940 bfd_set_error (bfd_error_bad_value);
65f38f15
AM
3941 }
3942
65f38f15 3943 dynobj = htab->elf.dynobj;
5bd4f169
AM
3944 sreloc = bfd_get_section_by_name (dynobj, name);
3945 if (sreloc == NULL)
3946 {
3947 flagword flags;
3948
3949 sreloc = bfd_make_section (dynobj, name);
3950 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3951 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3952 if ((sec->flags & SEC_ALLOC) != 0)
3953 flags |= SEC_ALLOC | SEC_LOAD;
3954 if (sreloc == NULL
3955 || ! bfd_set_section_flags (dynobj, sreloc, flags)
65f38f15 3956 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 3957 return FALSE;
5bd4f169 3958 }
65f38f15 3959 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM
3960 }
3961
65f38f15
AM
3962 /* If this is a global symbol, we count the number of
3963 relocations we need for this symbol. */
3964 if (h != NULL)
3965 {
ec338859 3966 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM
3967 }
3968 else
3969 {
ec338859
AM
3970 /* Track dynamic relocs needed for local syms too.
3971 We really need local syms available to do this
3972 easily. Oh well. */
3973
3974 asection *s;
3975 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3976 sec, r_symndx);
3977 if (s == NULL)
b34976b6 3978 return FALSE;
ec338859
AM
3979
3980 head = ((struct ppc_dyn_relocs **)
3981 &elf_section_data (s)->local_dynrel);
65f38f15 3982 }
ec338859
AM
3983
3984 p = *head;
3985 if (p == NULL || p->sec != sec)
3986 {
3987 p = ((struct ppc_dyn_relocs *)
3988 bfd_alloc (htab->elf.dynobj,
3989 (bfd_size_type) sizeof *p));
3990 if (p == NULL)
b34976b6 3991 return FALSE;
ec338859
AM
3992 p->next = *head;
3993 *head = p;
3994 p->sec = sec;
3995 p->count = 0;
3996 p->pc_count = 0;
3997 }
3998
3999 p->count += 1;
411e1bfb 4000 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4001 p->pc_count += 1;
65f38f15 4002 }
5bd4f169 4003 break;
65f38f15
AM
4004
4005 default:
96e0dda4 4006 break;
5bd4f169
AM
4007 }
4008 }
4009
b34976b6 4010 return TRUE;
5bd4f169
AM
4011}
4012
4013/* Return the section that should be marked against GC for a given
4014 relocation. */
4015
4016static asection *
1e2f5b6e
AM
4017ppc64_elf_gc_mark_hook (sec, info, rel, h, sym)
4018 asection *sec;
5bd4f169
AM
4019 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4020 Elf_Internal_Rela *rel;
4021 struct elf_link_hash_entry *h;
4022 Elf_Internal_Sym *sym;
4023{
1e2f5b6e
AM
4024 asection *rsec = NULL;
4025
5bd4f169
AM
4026 if (h != NULL)
4027 {
04c9666a 4028 enum elf_ppc64_reloc_type r_type;
1e2f5b6e 4029 struct ppc_link_hash_entry *fdh;
a33d1f77 4030
04c9666a 4031 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
a33d1f77 4032 switch (r_type)
5bd4f169
AM
4033 {
4034 case R_PPC64_GNU_VTINHERIT:
4035 case R_PPC64_GNU_VTENTRY:
4036 break;
4037
4038 default:
4039 switch (h->root.type)
4040 {
4041 case bfd_link_hash_defined:
4042 case bfd_link_hash_defweak:
1e2f5b6e
AM
4043 fdh = (struct ppc_link_hash_entry *) h;
4044
4045 /* Function descriptor syms cause the associated
4046 function code sym section to be marked. */
4047 if (fdh->is_func_descriptor)
4048 rsec = fdh->oh->root.u.def.section;
4049
4050 /* Function entry syms return NULL if they are in .opd
4051 and are not ._start (or others undefined on the ld
4052 command line). Thus we avoid marking all function
b34976b6 4053 sections, as all functions are referenced in .opd. */
1e2f5b6e
AM
4054 else if ((fdh->oh != NULL
4055 && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry)
f0abc2a1 4056 || ppc64_elf_section_data (sec)->opd.func_sec == NULL)
1e2f5b6e
AM
4057 rsec = h->root.u.def.section;
4058 break;
5bd4f169
AM
4059
4060 case bfd_link_hash_common:
1e2f5b6e
AM
4061 rsec = h->root.u.c.p->section;
4062 break;
5bd4f169
AM
4063
4064 default:
4065 break;
4066 }
4067 }
4068 }
4069 else
4070 {
1e2f5b6e
AM
4071 asection **opd_sym_section;
4072
4073 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
f0abc2a1 4074 opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec;
1e2f5b6e
AM
4075 if (opd_sym_section != NULL)
4076 rsec = opd_sym_section[sym->st_value / 24];
f0abc2a1 4077 else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL)
1e2f5b6e 4078 rsec = NULL;
5bd4f169
AM
4079 }
4080
1e2f5b6e 4081 return rsec;
5bd4f169
AM
4082}
4083
65f38f15
AM
4084/* Update the .got, .plt. and dynamic reloc reference counts for the
4085 section being removed. */
5bd4f169 4086
b34976b6 4087static bfd_boolean
5bd4f169
AM
4088ppc64_elf_gc_sweep_hook (abfd, info, sec, relocs)
4089 bfd *abfd;
411e1bfb 4090 struct bfd_link_info *info;
5bd4f169
AM
4091 asection *sec;
4092 const Elf_Internal_Rela *relocs;
4093{
411e1bfb 4094 struct ppc_link_hash_table *htab;
5bd4f169
AM
4095 Elf_Internal_Shdr *symtab_hdr;
4096 struct elf_link_hash_entry **sym_hashes;
411e1bfb 4097 struct got_entry **local_got_ents;
5bd4f169 4098 const Elf_Internal_Rela *rel, *relend;
5bd4f169 4099
ec338859
AM
4100 elf_section_data (sec)->local_dynrel = NULL;
4101
411e1bfb 4102 htab = ppc_hash_table (info);
5bd4f169
AM
4103 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4104 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 4105 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM
4106
4107 relend = relocs + sec->reloc_count;
4108 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM
4109 {
4110 unsigned long r_symndx;
04c9666a 4111 enum elf_ppc64_reloc_type r_type;
58ac9f71 4112 struct elf_link_hash_entry *h = NULL;
411e1bfb 4113 char tls_type = 0;
5bd4f169 4114
a33d1f77 4115 r_symndx = ELF64_R_SYM (rel->r_info);
04c9666a 4116 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
58ac9f71
AM
4117 if (r_symndx >= symtab_hdr->sh_info)
4118 {
4119 struct ppc_link_hash_entry *eh;
4120 struct ppc_dyn_relocs **pp;
4121 struct ppc_dyn_relocs *p;
4122
4123 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4124 eh = (struct ppc_link_hash_entry *) h;
4125
4126 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4127 if (p->sec == sec)
4128 {
4129 /* Everything must go for SEC. */
4130 *pp = p->next;
4131 break;
4132 }
4133 }
4134
a33d1f77
AM
4135 switch (r_type)
4136 {
411e1bfb
AM
4137 case R_PPC64_GOT_TLSLD16:
4138 case R_PPC64_GOT_TLSLD16_LO:
4139 case R_PPC64_GOT_TLSLD16_HI:
4140 case R_PPC64_GOT_TLSLD16_HA:
4141 htab->tlsld_got.refcount -= 1;
951fd09b 4142 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
4143 goto dogot;
4144
4145 case R_PPC64_GOT_TLSGD16:
4146 case R_PPC64_GOT_TLSGD16_LO:
4147 case R_PPC64_GOT_TLSGD16_HI:
4148 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4149 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
4150 goto dogot;
4151
4152 case R_PPC64_GOT_TPREL16_DS:
4153 case R_PPC64_GOT_TPREL16_LO_DS:
4154 case R_PPC64_GOT_TPREL16_HI:
4155 case R_PPC64_GOT_TPREL16_HA:
4156 tls_type = TLS_TLS | TLS_TPREL;
4157 goto dogot;
4158
4159 case R_PPC64_GOT_DTPREL16_DS:
4160 case R_PPC64_GOT_DTPREL16_LO_DS:
4161 case R_PPC64_GOT_DTPREL16_HI:
4162 case R_PPC64_GOT_DTPREL16_HA:
4163 tls_type = TLS_TLS | TLS_DTPREL;
4164 goto dogot;
4165
a33d1f77
AM
4166 case R_PPC64_GOT16:
4167 case R_PPC64_GOT16_DS:
4168 case R_PPC64_GOT16_HA:
4169 case R_PPC64_GOT16_HI:
4170 case R_PPC64_GOT16_LO:
4171 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM
4172 dogot:
4173 {
4174 struct got_entry *ent;
4175
58ac9f71
AM
4176 if (h != NULL)
4177 ent = h->got.glist;
411e1bfb
AM
4178 else
4179 ent = local_got_ents[r_symndx];
4180
4181 for (; ent != NULL; ent = ent->next)
4182 if (ent->addend == rel->r_addend
4183 && ent->tls_type == tls_type)
4184 break;
4185 if (ent == NULL)
4186 abort ();
4187 if (ent->got.refcount > 0)
4188 ent->got.refcount -= 1;
4189 }
a33d1f77 4190 break;
65f38f15 4191
a33d1f77
AM
4192 case R_PPC64_PLT16_HA:
4193 case R_PPC64_PLT16_HI:
4194 case R_PPC64_PLT16_LO:
4195 case R_PPC64_PLT32:
4196 case R_PPC64_PLT64:
721956f4
AM
4197 case R_PPC64_REL14:
4198 case R_PPC64_REL14_BRNTAKEN:
4199 case R_PPC64_REL14_BRTAKEN:
5d1634d7 4200 case R_PPC64_REL24:
58ac9f71 4201 if (h != NULL)
5d1634d7 4202 {
411e1bfb
AM
4203 struct plt_entry *ent;
4204
411e1bfb
AM
4205 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4206 if (ent->addend == rel->r_addend)
4207 break;
4208 if (ent == NULL)
4209 abort ();
4210 if (ent->plt.refcount > 0)
4211 ent->plt.refcount -= 1;
5d1634d7 4212 }
e86ce104 4213 break;
5d1634d7 4214
a33d1f77
AM
4215 default:
4216 break;
4217 }
4218 }
b34976b6 4219 return TRUE;
5bd4f169
AM
4220}
4221
e86ce104
AM
4222/* Called via elf_link_hash_traverse to transfer dynamic linking
4223 information on function code symbol entries to their corresponding
4224 function descriptor symbol entries. */
b34976b6 4225static bfd_boolean
e86ce104 4226func_desc_adjust (h, inf)
5bd4f169 4227 struct elf_link_hash_entry *h;
e86ce104 4228 PTR inf;
5bd4f169 4229{
e86ce104 4230 struct bfd_link_info *info;
65f38f15 4231 struct ppc_link_hash_table *htab;
411e1bfb 4232 struct plt_entry *ent;
5bd4f169 4233
e92d460e 4234 if (h->root.type == bfd_link_hash_indirect)
b34976b6 4235 return TRUE;
e86ce104 4236
e92d460e
AM
4237 if (h->root.type == bfd_link_hash_warning)
4238 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4239
e86ce104 4240 info = (struct bfd_link_info *) inf;
65f38f15 4241 htab = ppc_hash_table (info);
5bd4f169 4242
e86ce104
AM
4243 /* If this is a function code symbol, transfer dynamic linking
4244 information to the function descriptor symbol. */
4245 if (!((struct ppc_link_hash_entry *) h)->is_func)
b34976b6 4246 return TRUE;
e86ce104 4247
805fc799
AM
4248 if (h->root.type == bfd_link_hash_undefweak
4249 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR))
b34976b6 4250 htab->have_undefweak = TRUE;
805fc799 4251
411e1bfb
AM
4252 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4253 if (ent->plt.refcount > 0)
4254 break;
4255 if (ent != NULL
e86ce104
AM
4256 && h->root.root.string[0] == '.'
4257 && h->root.root.string[1] != '\0')
5bd4f169 4258 {
721956f4 4259 struct elf_link_hash_entry *fdh = ((struct ppc_link_hash_entry *) h)->oh;
b34976b6 4260 bfd_boolean force_local;
5bd4f169 4261
648cca2c
AM
4262 /* Find the corresponding function descriptor symbol. Create it
4263 as undefined if necessary. */
5bd4f169 4264
721956f4
AM
4265 if (fdh == NULL)
4266 fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1,
b34976b6 4267 FALSE, FALSE, TRUE);
5bd4f169 4268
d926e03d
AM
4269 if (fdh == NULL
4270 && info->shared
4271 && (h->root.type == bfd_link_hash_undefined
4272 || h->root.type == bfd_link_hash_undefweak))
648cca2c
AM
4273 {
4274 bfd *abfd;
4275 asymbol *newsym;
14a793b2 4276 struct bfd_link_hash_entry *bh;
648cca2c 4277
d926e03d 4278 abfd = h->root.u.undef.abfd;
648cca2c
AM
4279 newsym = bfd_make_empty_symbol (abfd);
4280 newsym->name = h->root.root.string + 1;
4281 newsym->section = bfd_und_section_ptr;
4282 newsym->value = 0;
4283 newsym->flags = BSF_OBJECT;
4284 if (h->root.type == bfd_link_hash_undefweak)
4285 newsym->flags |= BSF_WEAK;
4286
14a793b2 4287 bh = &fdh->root;
648cca2c
AM
4288 if ( !(_bfd_generic_link_add_one_symbol
4289 (info, abfd, newsym->name, newsym->flags,
b34976b6 4290 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
648cca2c 4291 {
b34976b6 4292 return FALSE;
648cca2c 4293 }
14a793b2 4294 fdh = (struct elf_link_hash_entry *) bh;
d926e03d 4295 fdh->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
648cca2c
AM
4296 }
4297
e86ce104
AM
4298 if (fdh != NULL
4299 && (fdh->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
4300 && (info->shared
4301 || (fdh->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4302 || (fdh->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0))
4303 {
4304 if (fdh->dynindx == -1)
4305 if (! bfd_elf64_link_record_dynamic_symbol (info, fdh))
b34976b6 4306 return FALSE;
e86ce104
AM
4307 fdh->elf_link_hash_flags |= (h->elf_link_hash_flags
4308 & (ELF_LINK_HASH_REF_REGULAR
4309 | ELF_LINK_HASH_REF_DYNAMIC
4310 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4311 | ELF_LINK_NON_GOT_REF));
e1fa50e7
AM
4312 if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
4313 {
411e1bfb 4314 fdh->plt.plist = h->plt.plist;
e1fa50e7
AM
4315 fdh->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
4316 }
e86ce104 4317 ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1;
721956f4 4318 ((struct ppc_link_hash_entry *) fdh)->oh = h;
721956f4 4319 ((struct ppc_link_hash_entry *) h)->oh = fdh;
e86ce104
AM
4320 }
4321
4322 /* Now that the info is on the function descriptor, clear the
4323 function code sym info. Any function code syms for which we
4324 don't have a definition in a regular file, we force local.
4325 This prevents a shared library from exporting syms that have
4326 been imported from another library. Function code syms that
4327 are really in the library we must leave global to prevent the
e1fa50e7 4328 linker dragging in a definition from a static library. */
ea1e4b0d
AM
4329 force_local = (info->shared
4330 && ((h->elf_link_hash_flags
4331 & ELF_LINK_HASH_DEF_REGULAR) == 0
4332 || fdh == NULL
4333 || (fdh->elf_link_hash_flags
4334 & ELF_LINK_HASH_DEF_REGULAR) == 0
4335 || (fdh->elf_link_hash_flags
4336 & ELF_LINK_FORCED_LOCAL) != 0));
e86ce104
AM
4337 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4338 }
4339
b34976b6 4340 return TRUE;
e86ce104 4341}
40b8271b 4342
82bd7b59
AM
4343#define MIN_SAVE_FPR 14
4344#define MAX_SAVE_FPR 31
4345
e86ce104 4346/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM
4347 this hook to a) provide some gcc support functions, and b) transfer
4348 dynamic linking information gathered so far on function code symbol
4349 entries, to their corresponding function descriptor symbol entries. */
b34976b6 4350static bfd_boolean
e86ce104
AM
4351ppc64_elf_func_desc_adjust (obfd, info)
4352 bfd *obfd ATTRIBUTE_UNUSED;
4353 struct bfd_link_info *info;
4354{
4355 struct ppc_link_hash_table *htab;
82bd7b59
AM
4356 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
4357 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
4358 unsigned int i;
4359 struct elf_link_hash_entry *h;
721956f4 4360 bfd_byte *p;
82bd7b59 4361 char sym[10];
e86ce104
AM
4362
4363 htab = ppc_hash_table (info);
82bd7b59
AM
4364
4365 if (htab->sfpr == NULL)
4366 /* We don't have any relocs. */
b34976b6 4367 return TRUE;
82bd7b59
AM
4368
4369 /* First provide any missing ._savef* and ._restf* functions. */
4370 memcpy (sym, "._savef14", 10);
4371 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4372 {
4373 sym[7] = i / 10 + '0';
4374 sym[8] = i % 10 + '0';
b34976b6 4375 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59
AM
4376 if (h != NULL
4377 && h->root.type == bfd_link_hash_undefined)
4378 {
4379 if (lowest_savef > i)
4380 lowest_savef = i;
4381 h->root.type = bfd_link_hash_defined;
4382 h->root.u.def.section = htab->sfpr;
4383 h->root.u.def.value = (i - lowest_savef) * 4;
4384 h->type = STT_FUNC;
4385 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4386 _bfd_elf_link_hash_hide_symbol (info, h, info->shared);
4387 }
4388 }
4389
4390 memcpy (sym, "._restf14", 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
AM
4396 if (h != NULL
4397 && h->root.type == bfd_link_hash_undefined)
4398 {
4399 if (lowest_restf > i)
4400 lowest_restf = i;
4401 h->root.type = bfd_link_hash_defined;
4402 h->root.u.def.section = htab->sfpr;
4403 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4404 + (i - lowest_restf) * 4);
4405 h->type = STT_FUNC;
4406 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4407 _bfd_elf_link_hash_hide_symbol (info, h, info->shared);
4408 }
4409 }
4410
805fc799
AM
4411 elf_link_hash_traverse (&htab->elf, func_desc_adjust, (PTR) info);
4412
82bd7b59
AM
4413 htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4414 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
4415
4416 if (htab->sfpr->_raw_size == 0)
805fc799
AM
4417 {
4418 if (!htab->have_undefweak)
4419 {
4420 _bfd_strip_section_from_output (info, htab->sfpr);
b34976b6 4421 return TRUE;
805fc799
AM
4422 }
4423
4424 htab->sfpr->_raw_size = 4;
4425 }
82bd7b59 4426
721956f4
AM
4427 p = (bfd_byte *) bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size);
4428 if (p == NULL)
b34976b6 4429 return FALSE;
721956f4
AM
4430 htab->sfpr->contents = p;
4431
4432 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
4433 {
4434 unsigned int fpr = i << 21;
4435 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4436 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
4437 p += 4;
4438 }
4439 if (lowest_savef <= MAX_SAVE_FPR)
4440 {
82bd7b59
AM
4441 bfd_put_32 (htab->elf.dynobj, BLR, p);
4442 p += 4;
721956f4 4443 }
82bd7b59 4444
721956f4
AM
4445 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
4446 {
4447 unsigned int fpr = i << 21;
4448 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4449 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
82bd7b59
AM
4450 p += 4;
4451 }
721956f4
AM
4452 if (lowest_restf <= MAX_SAVE_FPR
4453 || htab->sfpr->_raw_size == 4)
4454 {
4455 bfd_put_32 (htab->elf.dynobj, BLR, p);
4456 }
82bd7b59 4457
b34976b6 4458 return TRUE;
e86ce104
AM
4459}
4460
4461/* Adjust a symbol defined by a dynamic object and referenced by a
4462 regular object. The current definition is in some section of the
4463 dynamic object, but we're not including those sections. We have to
4464 change the definition to something the rest of the link can
4465 understand. */
4466
b34976b6 4467static bfd_boolean
e86ce104
AM
4468ppc64_elf_adjust_dynamic_symbol (info, h)
4469 struct bfd_link_info *info;
4470 struct elf_link_hash_entry *h;
4471{
4472 struct ppc_link_hash_table *htab;
4473 struct ppc_link_hash_entry * eh;
4474 struct ppc_dyn_relocs *p;
4475 asection *s;
4476 unsigned int power_of_two;
4477
4478 htab = ppc_hash_table (info);
4479
4480 /* Deal with function syms. */
4481 if (h->type == STT_FUNC
4482 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4483 {
4484 /* Clear procedure linkage table information for any symbol that
4485 won't need a .plt entry. */
411e1bfb
AM
4486 struct plt_entry *ent;
4487 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4488 if (ent->plt.refcount > 0)
4489 break;
e86ce104 4490 if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor
411e1bfb 4491 || ent == NULL
e86ce104
AM
4492 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
4493 || (! info->shared
4494 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
4495 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0))
40b8271b 4496 {
411e1bfb 4497 h->plt.plist = NULL;
40b8271b 4498 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
40b8271b 4499 }
b34976b6 4500 return TRUE;
5bd4f169 4501 }
bbd7ec4a 4502 else
411e1bfb 4503 h->plt.plist = NULL;
5bd4f169
AM
4504
4505 /* If this is a weak symbol, and there is a real definition, the
4506 processor independent code will have arranged for us to see the
4507 real definition first, and we can just use the same value. */
4508 if (h->weakdef != NULL)
4509 {
4510 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
4511 || h->weakdef->root.type == bfd_link_hash_defweak);
4512 h->root.u.def.section = h->weakdef->root.u.def.section;
4513 h->root.u.def.value = h->weakdef->root.u.def.value;
b34976b6 4514 return TRUE;
5bd4f169
AM
4515 }
4516
4517 /* This is a reference to a symbol defined by a dynamic object which
4518 is not a function. */
4519
4520 /* If we are creating a shared library, we must presume that the
4521 only references to the symbol are via the global offset table.
4522 For such cases we need not do anything here; the relocations will
4523 be handled correctly by relocate_section. */
4524 if (info->shared)
b34976b6 4525 return TRUE;
5bd4f169 4526
65f38f15
AM
4527 /* If there are no references to this symbol that do not use the
4528 GOT, we don't need to generate a copy reloc. */
4529 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
b34976b6 4530 return TRUE;
65f38f15
AM
4531
4532 eh = (struct ppc_link_hash_entry *) h;
4533 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4534 {
4535 s = p->sec->output_section;
4536 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4537 break;
4538 }
4539
4540 /* If we didn't find any dynamic relocs in read-only sections, then
5d1634d7 4541 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
65f38f15
AM
4542 if (p == NULL)
4543 {
4544 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
b34976b6 4545 return TRUE;
65f38f15
AM
4546 }
4547
5bd4f169
AM
4548 /* We must allocate the symbol in our .dynbss section, which will
4549 become part of the .bss section of the executable. There will be
4550 an entry for this symbol in the .dynsym section. The dynamic
4551 object will contain position independent code, so all references
4552 from the dynamic object to this symbol will go through the global
4553 offset table. The dynamic linker will use the .dynsym entry to
4554 determine the address it must put in the global offset table, so
4555 both the dynamic object and the regular object will refer to the
4556 same memory location for the variable. */
5bd4f169 4557
04c9666a
AM
4558 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4559 to copy the initial value out of the dynamic object and into the
5bd4f169
AM
4560 runtime process image. We need to remember the offset into the
4561 .rela.bss section we are going to use. */
4562 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4563 {
65f38f15 4564 htab->srelbss->_raw_size += sizeof (Elf64_External_Rela);
5bd4f169
AM
4565 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
4566 }
4567
4568 /* We need to figure out the alignment required for this symbol. I
4569 have no idea how ELF linkers handle this. */
4570 power_of_two = bfd_log2 (h->size);
4571 if (power_of_two > 4)
4572 power_of_two = 4;
4573
4574 /* Apply the required alignment. */
65f38f15
AM
4575 s = htab->sdynbss;
4576 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
4577 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 4578 {
65f38f15 4579 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 4580 return FALSE;
5bd4f169
AM
4581 }
4582
4583 /* Define the symbol as being at this point in the section. */
4584 h->root.u.def.section = s;
4585 h->root.u.def.value = s->_raw_size;
4586
4587 /* Increment the section size to make room for the symbol. */
4588 s->_raw_size += h->size;
4589
b34976b6 4590 return TRUE;
5bd4f169
AM
4591}
4592
e86ce104
AM
4593/* If given a function descriptor symbol, hide both the function code
4594 sym and the descriptor. */
4595static void
4596ppc64_elf_hide_symbol (info, h, force_local)
4597 struct bfd_link_info *info;
4598 struct elf_link_hash_entry *h;
b34976b6 4599 bfd_boolean force_local;
e86ce104
AM
4600{
4601 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4602
4603 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
4604 {
721956f4 4605 struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh;
e86ce104 4606
721956f4 4607 if (fh == NULL)
d1329ca3
AM
4608 {
4609 const char *p, *q;
4610 struct ppc_link_hash_table *htab;
4611 char save;
4612
4613 /* We aren't supposed to use alloca in BFD because on
4614 systems which do not have alloca the version in libiberty
4615 calls xmalloc, which might cause the program to crash
4616 when it runs out of memory. This function doesn't have a
4617 return status, so there's no way to gracefully return an
4618 error. So cheat. We know that string[-1] can be safely
4619 dereferenced; It's either a string in an ELF string
4620 table, or allocated in an objalloc structure. */
4621
4622 p = h->root.root.string - 1;
4623 save = *p;
4624 *(char *) p = '.';
4625 htab = ppc_hash_table (info);
b34976b6 4626 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM
4627 *(char *) p = save;
4628
4629 /* Unfortunately, if it so happens that the string we were
4630 looking for was allocated immediately before this string,
4631 then we overwrote the string terminator. That's the only
4632 reason the lookup should fail. */
4633 if (fh == NULL)
4634 {
4635 q = h->root.root.string + strlen (h->root.root.string);
4636 while (q >= h->root.root.string && *q == *p)
4637 --q, --p;
4638 if (q < h->root.root.string && *p == '.')
b34976b6 4639 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM
4640 }
4641 if (fh != NULL)
4642 {
4643 ((struct ppc_link_hash_entry *) h)->oh = fh;
4644 ((struct ppc_link_hash_entry *) fh)->oh = h;
4645 }
4646 }
e86ce104
AM
4647 if (fh != NULL)
4648 _bfd_elf_link_hash_hide_symbol (info, fh, force_local);
4649 }
4650}
4651
411e1bfb 4652static bfd_boolean
e7b938ca 4653get_sym_h (hp, symp, symsecp, tls_maskp, locsymsp, r_symndx, ibfd)
411e1bfb
AM
4654 struct elf_link_hash_entry **hp;
4655 Elf_Internal_Sym **symp;
4656 asection **symsecp;
e7b938ca 4657 char **tls_maskp;
411e1bfb
AM
4658 Elf_Internal_Sym **locsymsp;
4659 unsigned long r_symndx;
4660 bfd *ibfd;
4661{
4662 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4663
4664 if (r_symndx >= symtab_hdr->sh_info)
4665 {
4666 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4667 struct elf_link_hash_entry *h;
4668
4669 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4670 while (h->root.type == bfd_link_hash_indirect
4671 || h->root.type == bfd_link_hash_warning)
4672 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4673
4674 if (hp != NULL)
4675 *hp = h;
4676
4677 if (symp != NULL)
4678 *symp = NULL;
4679
4680 if (symsecp != NULL)
4681 {
4682 asection *symsec = NULL;
4683 if (h->root.type == bfd_link_hash_defined
4684 || h->root.type == bfd_link_hash_defweak)
4685 symsec = h->root.u.def.section;
4686 *symsecp = symsec;
4687 }
4688
e7b938ca 4689 if (tls_maskp != NULL)
411e1bfb
AM
4690 {
4691 struct ppc_link_hash_entry *eh;
4692
4693 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4694 *tls_maskp = &eh->tls_mask;
411e1bfb
AM
4695 }
4696 }
4697 else
4698 {
4699 Elf_Internal_Sym *sym;
4700 Elf_Internal_Sym *locsyms = *locsymsp;
4701
4702 if (locsyms == NULL)
4703 {
4704 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4705 if (locsyms == NULL)
4706 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4707 symtab_hdr->sh_info,
4708 0, NULL, NULL, NULL);
4709 if (locsyms == NULL)
4710 return FALSE;
4711 *locsymsp = locsyms;
4712 }
4713 sym = locsyms + r_symndx;
4714
4715 if (hp != NULL)
4716 *hp = NULL;
4717
4718 if (symp != NULL)
4719 *symp = sym;
4720
4721 if (symsecp != NULL)
4722 {
4723 asection *symsec = NULL;
4724 if ((sym->st_shndx != SHN_UNDEF
4725 && sym->st_shndx < SHN_LORESERVE)
4726 || sym->st_shndx > SHN_HIRESERVE)
4727 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
4728 *symsecp = symsec;
4729 }
4730
e7b938ca 4731 if (tls_maskp != NULL)
411e1bfb
AM
4732 {
4733 struct got_entry **lgot_ents;
e7b938ca 4734 char *tls_mask;
411e1bfb 4735
e7b938ca 4736 tls_mask = NULL;
411e1bfb
AM
4737 lgot_ents = elf_local_got_ents (ibfd);
4738 if (lgot_ents != NULL)
4739 {
e7b938ca
AM
4740 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
4741 tls_mask = &lgot_masks[r_symndx];
411e1bfb 4742 }
e7b938ca 4743 *tls_maskp = tls_mask;
411e1bfb
AM
4744 }
4745 }
4746 return TRUE;
4747}
4748
e7b938ca 4749/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b
AM
4750 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
4751 type suitable for optimization, and 1 otherwise. */
4752
4753static int
e7b938ca
AM
4754get_tls_mask (tls_maskp, locsymsp, rel, ibfd)
4755 char **tls_maskp;
411e1bfb
AM
4756 Elf_Internal_Sym **locsymsp;
4757 const Elf_Internal_Rela *rel;
4758 bfd *ibfd;
4759{
4760 unsigned long r_symndx;
951fd09b 4761 unsigned int next_r;
411e1bfb
AM
4762 struct elf_link_hash_entry *h;
4763 Elf_Internal_Sym *sym;
4764 asection *sec;
4765 bfd_vma off;
4766
4767 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 4768 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 4769 return 0;
411e1bfb 4770
e7b938ca 4771 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM
4772 || sec == NULL
4773 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 4774 return 1;
411e1bfb
AM
4775
4776 /* Look inside a TOC section too. */
4777 if (h != NULL)
4778 {
4779 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4780 off = h->root.u.def.value;
4781 }
4782 else
4783 off = sym->st_value;
4784 off += rel->r_addend;
4785 BFD_ASSERT (off % 8 == 0);
4786 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 4787 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 4788 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b
AM
4789 return 0;
4790 if (h == NULL
4791 || h->root.type == bfd_link_hash_defined
4792 || h->root.type == bfd_link_hash_defweak)
4793 {
4794 if (next_r == (unsigned) -1)
4795 return 2;
4796 if (next_r == (unsigned) -2
4797 && (h == NULL
4798 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
4799 return 3;
4800 }
4801 return 1;
411e1bfb
AM
4802}
4803
b34976b6 4804bfd_boolean
d6fe2dc1 4805ppc64_elf_edit_opd (obfd, info)
1e2f5b6e
AM
4806 bfd *obfd;
4807 struct bfd_link_info *info;
4808{
4809 bfd *ibfd;
1e2f5b6e 4810
411e1bfb 4811 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM
4812 {
4813 asection *sec;
4814 Elf_Internal_Rela *relstart, *rel, *relend;
4815 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 4816 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM
4817 struct elf_link_hash_entry **sym_hashes;
4818 bfd_vma offset;
d6fe2dc1 4819 bfd_size_type amt;
1e2f5b6e 4820 long *adjust;
b34976b6 4821 bfd_boolean need_edit;
1e2f5b6e
AM
4822
4823 sec = bfd_get_section_by_name (ibfd, ".opd");
4824 if (sec == NULL)
4825 continue;
4826
d6fe2dc1 4827 amt = sec->_raw_size * sizeof (long) / 24;
f0abc2a1 4828 adjust = ppc64_elf_section_data (sec)->opd.adjust;
d6fe2dc1
AM
4829 if (adjust == NULL)
4830 {
4831 /* Must be a ld -r link. ie. check_relocs hasn't been
4832 called. */
4833 adjust = (long *) bfd_zalloc (obfd, amt);
f0abc2a1 4834 ppc64_elf_section_data (sec)->opd.adjust = adjust;
d6fe2dc1
AM
4835 }
4836 memset (adjust, 0, (size_t) amt);
1e2f5b6e
AM
4837
4838 if (sec->output_section == bfd_abs_section_ptr)
4839 continue;
4840
4841 /* Look through the section relocs. */
4842 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
4843 continue;
4844
6cdc0ccc 4845 local_syms = NULL;
1e2f5b6e
AM
4846 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4847 sym_hashes = elf_sym_hashes (ibfd);
4848
4849 /* Read the relocations. */
73374ef1 4850 relstart = _bfd_elf64_link_read_relocs (ibfd, sec, (PTR) NULL,
1e2f5b6e
AM
4851 (Elf_Internal_Rela *) NULL,
4852 info->keep_memory);
4853 if (relstart == NULL)
b34976b6 4854 return FALSE;
1e2f5b6e
AM
4855
4856 /* First run through the relocs to check they are sane, and to
4857 determine whether we need to edit this opd section. */
b34976b6 4858 need_edit = FALSE;
1e2f5b6e
AM
4859 offset = 0;
4860 relend = relstart + sec->reloc_count;
4861 for (rel = relstart; rel < relend; rel++)
4862 {
04c9666a 4863 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM
4864 unsigned long r_symndx;
4865 asection *sym_sec;
4866 struct elf_link_hash_entry *h;
4867 Elf_Internal_Sym *sym;
4868
4869 /* .opd contains a regular array of 24 byte entries. We're
4870 only interested in the reloc pointing to a function entry
4871 point. */
04c9666a 4872 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
1e2f5b6e
AM
4873 if (r_type == R_PPC64_TOC)
4874 continue;
4875
4876 if (r_type != R_PPC64_ADDR64)
4877 {
4878 (*_bfd_error_handler)
4879 (_("%s: unexpected reloc type %u in .opd section"),
4880 bfd_archive_filename (ibfd), r_type);
b34976b6 4881 need_edit = FALSE;
1e2f5b6e
AM
4882 break;
4883 }
4884
4885 if (rel + 1 >= relend)
4886 continue;
04c9666a 4887 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE ((rel + 1)->r_info);
1e2f5b6e
AM
4888 if (r_type != R_PPC64_TOC)
4889 continue;
4890
4891 if (rel->r_offset != offset)
4892 {
4893 /* If someone messes with .opd alignment then after a
4894 "ld -r" we might have padding in the middle of .opd.
4895 Also, there's nothing to prevent someone putting
4896 something silly in .opd with the assembler. No .opd
b34976b6 4897 optimization for them! */
1e2f5b6e
AM
4898 (*_bfd_error_handler)
4899 (_("%s: .opd is not a regular array of opd entries"),
4900 bfd_archive_filename (ibfd));
b34976b6 4901 need_edit = FALSE;
1e2f5b6e
AM
4902 break;
4903 }
4904
4905 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM
4906 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
4907 r_symndx, ibfd))
4908 goto error_free_rel;
1e2f5b6e
AM
4909
4910 if (sym_sec == NULL || sym_sec->owner == NULL)
4911 {
411e1bfb
AM
4912 const char *sym_name;
4913 if (h != NULL)
4914 sym_name = h->root.root.string;
4915 else
4916 sym_name = bfd_elf_local_sym_name (ibfd, sym);
4917
1e2f5b6e
AM
4918 (*_bfd_error_handler)
4919 (_("%s: undefined sym `%s' in .opd section"),
4920 bfd_archive_filename (ibfd),
411e1bfb 4921 sym_name);
b34976b6 4922 need_edit = FALSE;
1e2f5b6e
AM
4923 break;
4924 }
4925
51020317
AM
4926 /* opd entries are always for functions defined in the
4927 current input bfd. If the symbol isn't defined in the
4928 input bfd, then we won't be using the function in this
4929 bfd; It must be defined in a linkonce section in another
4930 bfd, or is weak. It's also possible that we are
4931 discarding the function due to a linker script /DISCARD/,
4932 which we test for via the output_section. */
4933 if (sym_sec->owner != ibfd
4934 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 4935 need_edit = TRUE;
1e2f5b6e
AM
4936
4937 offset += 24;
4938 }
4939
4940 if (need_edit)
4941 {
4942 Elf_Internal_Rela *write_rel;
4943 bfd_byte *rptr, *wptr;
b34976b6 4944 bfd_boolean skip;
1e2f5b6e
AM
4945
4946 /* This seems a waste of time as input .opd sections are all
4947 zeros as generated by gcc, but I suppose there's no reason
4948 this will always be so. We might start putting something in
4949 the third word of .opd entries. */
4950 if ((sec->flags & SEC_IN_MEMORY) == 0)
4951 {
4952 bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size);
6cdc0ccc
AM
4953 if (loc == NULL
4954 || !bfd_get_section_contents (ibfd, sec, loc, (bfd_vma) 0,
4955 sec->_raw_size))
4956 {
4957 if (local_syms != NULL
4958 && symtab_hdr->contents != (unsigned char *) local_syms)
4959 free (local_syms);
4960 error_free_rel:
4961 if (elf_section_data (sec)->relocs != relstart)
4962 free (relstart);
b34976b6 4963 return FALSE;
6cdc0ccc 4964 }
1e2f5b6e
AM
4965 sec->contents = loc;
4966 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
4967 }
4968
4969 elf_section_data (sec)->relocs = relstart;
4970
4971 wptr = sec->contents;
4972 rptr = sec->contents;
4973 write_rel = relstart;
b34976b6 4974 skip = FALSE;
1e2f5b6e
AM
4975 offset = 0;
4976 for (rel = relstart; rel < relend; rel++)
4977 {
4978 if (rel->r_offset == offset)
4979 {
4980 unsigned long r_symndx;
4981 asection *sym_sec;
4982 struct elf_link_hash_entry *h;
4983 Elf_Internal_Sym *sym;
4984
4985 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM
4986 get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
4987 r_symndx, ibfd);
1e2f5b6e 4988
51020317
AM
4989 skip = (sym_sec->owner != ibfd
4990 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM
4991 if (skip)
4992 {
0be617ce 4993 if (h != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM
4994 {
4995 /* Arrange for the function descriptor sym
4996 to be dropped. */
d6fe2dc1 4997 struct ppc_link_hash_entry *fdh;
a4aa0fb7
AM
4998 struct ppc_link_hash_entry *fh;
4999
5000 fh = (struct ppc_link_hash_entry *) h;
d6fe2dc1
AM
5001 fdh = (struct ppc_link_hash_entry *) fh->oh;
5002 if (fdh == NULL)
5003 {
5004 const char *fd_name;
5005 struct ppc_link_hash_table *htab;
5006
5007 fd_name = h->root.root.string + 1;
5008 htab = ppc_hash_table (info);
5009 fdh = (struct ppc_link_hash_entry *)
5010 elf_link_hash_lookup (&htab->elf, fd_name,
b34976b6 5011 FALSE, FALSE, FALSE);
d6fe2dc1
AM
5012 fdh->is_func_descriptor = 1;
5013 fdh->oh = &fh->elf;
5014 fh->is_func = 1;
5015 fh->oh = &fdh->elf;
5016 }
5017
5018 fdh->elf.root.u.def.value = 0;
5019 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7
AM
5020 }
5021 }
5022 else
1e2f5b6e
AM
5023 {
5024 /* We'll be keeping this opd entry. */
5025
5026 if (h != NULL)
5027 {
5028 /* Redefine the function descriptor symbol
5029 to this location in the opd section.
5030 We've checked above that opd relocs are
5031 ordered. */
d6fe2dc1 5032 struct ppc_link_hash_entry *fdh;
1e2f5b6e
AM
5033 struct ppc_link_hash_entry *fh;
5034
5035 fh = (struct ppc_link_hash_entry *) h;
d6fe2dc1
AM
5036 fdh = (struct ppc_link_hash_entry *) fh->oh;
5037 if (fdh == NULL)
5038 {
5039 const char *fd_name;
5040 struct ppc_link_hash_table *htab;
5041
5042 fd_name = h->root.root.string + 1;
5043 htab = ppc_hash_table (info);
5044 fdh = (struct ppc_link_hash_entry *)
5045 elf_link_hash_lookup (&htab->elf, fd_name,
b34976b6 5046 FALSE, FALSE, FALSE);
d6fe2dc1
AM
5047 fdh->is_func_descriptor = 1;
5048 fdh->oh = &fh->elf;
5049 fh->is_func = 1;
5050 fh->oh = &fdh->elf;
5051 }
5052
5053 fdh->elf.root.u.def.value = wptr - sec->contents;
1e2f5b6e
AM
5054 }
5055 else
5056 {
6cdc0ccc
AM
5057 /* Local syms are a bit tricky. We could
5058 tweak them as they can be cached, but
5059 we'd need to look through the local syms
5060 for the function descriptor sym which we
5061 don't have at the moment. So keep an
b34976b6 5062 array of adjustments. */
7f6a7663 5063 adjust[rel->r_offset / 24] = wptr - rptr;
1e2f5b6e
AM
5064 }
5065
5066 if (wptr != rptr)
5067 memcpy (wptr, rptr, 24);
5068 wptr += 24;
5069 }
5070 rptr += 24;
5071 offset += 24;
5072 }
5073
5074 /* We need to adjust any reloc offsets to point to the
5075 new opd entries. While we're at it, we may as well
5076 remove redundant relocs. */
5077 if (!skip)
5078 {
5079 rel->r_offset += wptr - rptr;
5080 if (write_rel != rel)
5081 memcpy (write_rel, rel, sizeof (*rel));
5082 ++write_rel;
5083 }
5084 }
5085
5086 sec->_cooked_size = wptr - sec->contents;
5087 sec->reloc_count = write_rel - relstart;
cdcf6e38
AM
5088 /* Fudge the size too, as this is used later in
5089 elf_bfd_final_link if we are emitting relocs. */
5090 elf_section_data (sec)->rel_hdr.sh_size
5091 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
5092 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
1e2f5b6e 5093 }
6cdc0ccc 5094 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 5095 free (relstart);
6cdc0ccc 5096
411e1bfb
AM
5097 if (local_syms != NULL
5098 && symtab_hdr->contents != (unsigned char *) local_syms)
5099 {
5100 if (!info->keep_memory)
5101 free (local_syms);
5102 else
5103 symtab_hdr->contents = (unsigned char *) local_syms;
5104 }
5105 }
5106
5107 return TRUE;
5108}
5109
951fd09b 5110/* Set htab->tls_sec. */
411e1bfb
AM
5111
5112bfd_boolean
951fd09b 5113ppc64_elf_tls_setup (obfd, info)
411e1bfb
AM
5114 bfd *obfd;
5115 struct bfd_link_info *info;
5116{
5117 asection *tls;
411e1bfb
AM
5118 struct ppc_link_hash_table *htab;
5119
411e1bfb
AM
5120 for (tls = obfd->sections; tls != NULL; tls = tls->next)
5121 if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD))
5122 == (SEC_THREAD_LOCAL | SEC_LOAD))
5123 break;
411e1bfb
AM
5124
5125 htab = ppc_hash_table (info);
5126 htab->tls_sec = tls;
a48ebf4d
AM
5127
5128 if (htab->tls_get_addr != NULL)
5129 {
5130 struct elf_link_hash_entry *h = htab->tls_get_addr;
5131
5132 while (h->root.type == bfd_link_hash_indirect
5133 || h->root.type == bfd_link_hash_warning)
5134 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5135
5136 htab->tls_get_addr = h;
5137 }
5138
951fd09b
AM
5139 return tls != NULL;
5140}
411e1bfb 5141
951fd09b
AM
5142/* Run through all the TLS relocs looking for optimization
5143 opportunities. The linker has been hacked (see ppc64elf.em) to do
5144 a preliminary section layout so that we know the TLS segment
5145 offsets. We can't optimize earlier because some optimizations need
5146 to know the tp offset, and we need to optimize before allocating
5147 dynamic relocations. */
5148
5149bfd_boolean
5150ppc64_elf_tls_optimize (obfd, info)
5151 bfd *obfd ATTRIBUTE_UNUSED;
5152 struct bfd_link_info *info;
5153{
5154 bfd *ibfd;
5155 asection *sec;
5156 struct ppc_link_hash_table *htab;
5157
5158 if (info->relocateable || info->shared)
411e1bfb
AM
5159 return TRUE;
5160
951fd09b 5161 htab = ppc_hash_table (info);
411e1bfb
AM
5162 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5163 {
5164 Elf_Internal_Sym *locsyms = NULL;
5165
5166 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5167 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5168 {
5169 Elf_Internal_Rela *relstart, *rel, *relend;
5170 int expecting_tls_get_addr;
5171
5172 /* Read the relocations. */
5173 relstart = _bfd_elf64_link_read_relocs (ibfd, sec, (PTR) NULL,
5174 (Elf_Internal_Rela *) NULL,
5175 info->keep_memory);
5176 if (relstart == NULL)
5177 return FALSE;
5178
5179 expecting_tls_get_addr = 0;
5180 relend = relstart + sec->reloc_count;
5181 for (rel = relstart; rel < relend; rel++)
5182 {
5183 enum elf_ppc64_reloc_type r_type;
5184 unsigned long r_symndx;
5185 struct elf_link_hash_entry *h;
5186 Elf_Internal_Sym *sym;
5187 asection *sym_sec;
e7b938ca
AM
5188 char *tls_mask;
5189 char tls_set, tls_clear, tls_type = 0;
411e1bfb 5190 bfd_vma value;
951fd09b 5191 bfd_boolean ok_tprel, is_local;
411e1bfb
AM
5192
5193 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5194 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM
5195 r_symndx, ibfd))
5196 {
5197 err_free_rel:
5198 if (elf_section_data (sec)->relocs != relstart)
5199 free (relstart);
5200 if (locsyms != NULL
5201 && (elf_tdata (ibfd)->symtab_hdr.contents
5202 != (unsigned char *) locsyms))
5203 free (locsyms);
5204 return FALSE;
5205 }
5206
5207 if (h != NULL)
5208 {
5209 if (h->root.type != bfd_link_hash_defined
5210 && h->root.type != bfd_link_hash_defweak)
5211 continue;
5212 value = h->root.u.def.value;
5213 }
5214 else
5215 value = sym->st_value;
951fd09b 5216
411e1bfb 5217 ok_tprel = FALSE;
951fd09b
AM
5218 is_local = FALSE;
5219 if (h == NULL
5220 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5221 {
951fd09b 5222 is_local = TRUE;
411e1bfb
AM
5223 value += sym_sec->output_offset;
5224 value += sym_sec->output_section->vma;
5225 value -= htab->tls_sec->vma;
5226 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
5227 < (bfd_vma) 1 << 32);
5228 }
5229
5230 r_type
5231 = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
5232 switch (r_type)
5233 {
5234 case R_PPC64_GOT_TLSLD16:
5235 case R_PPC64_GOT_TLSLD16_LO:
5236 case R_PPC64_GOT_TLSLD16_HI:
5237 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM
5238 /* These relocs should never be against a symbol
5239 defined in a shared lib. Leave them alone if
5240 that turns out to be the case. */
5241 if (!is_local)
5242 continue;
5243
411e1bfb 5244 htab->tlsld_got.refcount -= 1;
951fd09b
AM
5245 /* LD -> LE */
5246 tls_set = 0;
5247 tls_clear = TLS_LD;
e7b938ca 5248 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
5249 expecting_tls_get_addr = 1;
5250 break;
5251
5252 case R_PPC64_GOT_TLSGD16:
5253 case R_PPC64_GOT_TLSGD16_LO:
5254 case R_PPC64_GOT_TLSGD16_HI:
5255 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5256 if (ok_tprel)
411e1bfb
AM
5257 /* GD -> LE */
5258 tls_set = 0;
5259 else
5260 /* GD -> IE */
951fd09b
AM
5261 tls_set = TLS_TLS | TLS_TPRELGD;
5262 tls_clear = TLS_GD;
e7b938ca 5263 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
5264 expecting_tls_get_addr = 1;
5265 break;
5266
5267 case R_PPC64_GOT_TPREL16_DS:
5268 case R_PPC64_GOT_TPREL16_LO_DS:
5269 case R_PPC64_GOT_TPREL16_HI:
5270 case R_PPC64_GOT_TPREL16_HA:
5271 expecting_tls_get_addr = 0;
5272 if (ok_tprel)
5273 {
5274 /* IE -> LE */
5275 tls_set = 0;
5276 tls_clear = TLS_TPREL;
e7b938ca 5277 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM
5278 break;
5279 }
5280 else
5281 continue;
5282
5283 case R_PPC64_REL14:
5284 case R_PPC64_REL14_BRTAKEN:
5285 case R_PPC64_REL14_BRNTAKEN:
5286 case R_PPC64_REL24:
5287 if (h != NULL
5288 && h == htab->tls_get_addr)
5289 {
5290 if (!expecting_tls_get_addr
5291 && rel != relstart
5292 && ((ELF64_R_TYPE (rel[-1].r_info)
5293 == R_PPC64_TOC16)
5294 || (ELF64_R_TYPE (rel[-1].r_info)
5295 == R_PPC64_TOC16_LO)))
5296 {
5297 /* Check for toc tls entries. */
5298 char *toc_tls;
951fd09b 5299 int retval;
411e1bfb 5300
e7b938ca 5301 retval = get_tls_mask (&toc_tls, &locsyms,
951fd09b
AM
5302 rel - 1, ibfd);
5303 if (retval == 0)
411e1bfb
AM
5304 goto err_free_rel;
5305 if (toc_tls != NULL)
951fd09b 5306 expecting_tls_get_addr = retval > 1;
411e1bfb
AM
5307 }
5308
5309 if (expecting_tls_get_addr)
5310 {
5311 struct plt_entry *ent;
5312 for (ent = h->plt.plist; ent; ent = ent->next)
5313 if (ent->addend == 0)
5314 {
5315 if (ent->plt.refcount > 0)
5316 ent->plt.refcount -= 1;
5317 break;
5318 }
5319 }
5320 }
5321 expecting_tls_get_addr = 0;
5322 continue;
5323
5324 case R_PPC64_TPREL64:
5325 expecting_tls_get_addr = 0;
5326 if (ok_tprel)
5327 {
5328 /* IE -> LE */
5329 tls_set = TLS_EXPLICIT;
5330 tls_clear = TLS_TPREL;
5331 break;
5332 }
5333 else
5334 continue;
5335
5336 case R_PPC64_DTPMOD64:
5337 expecting_tls_get_addr = 0;
951fd09b
AM
5338 if (rel + 1 < relend
5339 && (rel[1].r_info
5340 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
5341 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 5342 {
951fd09b 5343 if (ok_tprel)
411e1bfb 5344 /* GD -> LE */
951fd09b 5345 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM
5346 else
5347 /* GD -> IE */
951fd09b
AM
5348 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
5349 tls_clear = TLS_GD;
411e1bfb
AM
5350 }
5351 else
5352 {
951fd09b
AM
5353 if (!is_local)
5354 continue;
5355
5356 /* LD -> LE */
5357 tls_set = TLS_EXPLICIT;
5358 tls_clear = TLS_LD;
411e1bfb
AM
5359 }
5360 break;
5361
5362 default:
5363 expecting_tls_get_addr = 0;
5364 continue;
5365 }
5366
5367 if ((tls_set & TLS_EXPLICIT) == 0)
5368 {
5369 struct got_entry *ent;
5370
5371 /* Adjust got entry for this reloc. */
5372 if (h != NULL)
5373 ent = h->got.glist;
5374 else
5375 ent = elf_local_got_ents (ibfd)[r_symndx];
5376
5377 for (; ent != NULL; ent = ent->next)
5378 if (ent->addend == rel->r_addend
e7b938ca 5379 && ent->tls_type == tls_type)
411e1bfb
AM
5380 break;
5381 if (ent == NULL)
5382 abort ();
5383
5384 if (tls_set == 0)
5385 {
5386 /* We managed to get rid of a got entry. */
5387 if (ent->got.refcount > 0)
5388 ent->got.refcount -= 1;
5389 }
411e1bfb
AM
5390 }
5391 else if (h != NULL)
5392 {
5393 struct ppc_link_hash_entry * eh;
5394 struct ppc_dyn_relocs **pp;
5395 struct ppc_dyn_relocs *p;
5396
5397 /* Adjust dynamic relocs. */
5398 eh = (struct ppc_link_hash_entry *) h;
5399 for (pp = &eh->dyn_relocs;
5400 (p = *pp) != NULL;
5401 pp = &p->next)
5402 if (p->sec == sec)
5403 {
5404 /* If we got rid of a DTPMOD/DTPREL reloc
5405 pair then we'll lose one or two dyn
5406 relocs. */
951fd09b 5407 if (tls_set == (TLS_EXPLICIT | TLS_GD))
411e1bfb 5408 p->count -= 1;
951fd09b 5409 p->count -= 1;
411e1bfb
AM
5410 if (p->count == 0)
5411 *pp = p->next;
5412 break;
5413 }
5414 }
5415
e7b938ca
AM
5416 *tls_mask |= tls_set;
5417 *tls_mask &= ~tls_clear;
411e1bfb
AM
5418 }
5419
5420 if (elf_section_data (sec)->relocs != relstart)
5421 free (relstart);
5422 }
5423
5424 if (locsyms != NULL
5425 && (elf_tdata (ibfd)->symtab_hdr.contents
5426 != (unsigned char *) locsyms))
6cdc0ccc
AM
5427 {
5428 if (!info->keep_memory)
411e1bfb 5429 free (locsyms);
6cdc0ccc 5430 else
411e1bfb 5431 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 5432 }
1e2f5b6e 5433 }
b34976b6 5434 return TRUE;
1e2f5b6e 5435}
b34976b6 5436
65f38f15
AM
5437/* This is the condition under which ppc64_elf_finish_dynamic_symbol
5438 will be called from elflink.h. If elflink.h doesn't call our
5439 finish_dynamic_symbol routine, we'll need to do something about
5440 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
5441#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
5442 ((DYN) \
5443 && ((INFO)->shared \
5444 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5445 && ((H)->dynindx != -1 \
5446 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5bd4f169 5447
65f38f15
AM
5448/* Allocate space in .plt, .got and associated reloc sections for
5449 dynamic relocs. */
5bd4f169 5450
b34976b6 5451static bfd_boolean
65f38f15
AM
5452allocate_dynrelocs (h, inf)
5453 struct elf_link_hash_entry *h;
5454 PTR inf;
5bd4f169 5455{
65f38f15
AM
5456 struct bfd_link_info *info;
5457 struct ppc_link_hash_table *htab;
5bd4f169 5458 asection *s;
65f38f15
AM
5459 struct ppc_link_hash_entry *eh;
5460 struct ppc_dyn_relocs *p;
411e1bfb 5461 struct got_entry *gent;
5bd4f169 5462
e92d460e 5463 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5464 return TRUE;
5bd4f169 5465
e92d460e
AM
5466 if (h->root.type == bfd_link_hash_warning)
5467 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5468
65f38f15
AM
5469 info = (struct bfd_link_info *) inf;
5470 htab = ppc_hash_table (info);
5bd4f169 5471
65f38f15 5472 if (htab->elf.dynamic_sections_created
411e1bfb
AM
5473 && h->dynindx != -1
5474 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
5bd4f169 5475 {
411e1bfb
AM
5476 struct plt_entry *pent;
5477 bfd_boolean doneone = FALSE;
5478 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
5479 if (pent->plt.refcount > 0)
5480 {
5481 BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor);
5482
5483 /* If this is the first .plt entry, make room for the special
5484 first entry. */
5485 s = htab->splt;
5486 if (s->_raw_size == 0)
5487 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
5488
5489 pent->plt.offset = s->_raw_size;
5490
5491 /* Make room for this entry. */
5492 s->_raw_size += PLT_ENTRY_SIZE;
5493
5494 /* Make room for the .glink code. */
5495 s = htab->sglink;
5496 if (s->_raw_size == 0)
5497 s->_raw_size += GLINK_CALL_STUB_SIZE;
5498 /* We need bigger stubs past index 32767. */
5499 if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
5500 s->_raw_size += 4;
5501 s->_raw_size += 2*4;
5502
5503 /* We also need to make an entry in the .rela.plt section. */
5504 s = htab->srelplt;
5505 s->_raw_size += sizeof (Elf64_External_Rela);
5506 doneone = TRUE;
5507 }
5508 else
5509 pent->plt.offset = (bfd_vma) -1;
5510 if (!doneone)
65f38f15 5511 {
411e1bfb 5512 h->plt.plist = NULL;
65f38f15
AM
5513 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5514 }
5515 }
5516 else
5517 {
411e1bfb 5518 h->plt.plist = NULL;
65f38f15
AM
5519 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5520 }
5521
951fd09b
AM
5522 eh = (struct ppc_link_hash_entry *) h;
5523 /* Run through the TLS GD got entries first if we're changing them
5524 to TPREL. */
e7b938ca 5525 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM
5526 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5527 if (gent->got.refcount > 0
5528 && (gent->tls_type & TLS_GD) != 0)
5529 {
5530 /* This was a GD entry that has been converted to TPREL. If
5531 there happens to be a TPREL entry we can use that one. */
5532 struct got_entry *ent;
5533 for (ent = h->got.glist; ent != NULL; ent = ent->next)
5534 if (ent->got.refcount > 0
5535 && (ent->tls_type & TLS_TPREL) != 0
5536 && ent->addend == gent->addend)
5537 {
5538 gent->got.refcount = 0;
5539 break;
5540 }
5541
5542 /* If not, then we'll be using our own TPREL entry. */
5543 if (gent->got.refcount != 0)
5544 gent->tls_type = TLS_TLS | TLS_TPREL;
5545 }
5546
411e1bfb
AM
5547 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5548 if (gent->got.refcount > 0)
5549 {
951fd09b
AM
5550 bfd_boolean dyn;
5551
411e1bfb 5552 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM
5553 Undefined weak syms won't yet be marked as dynamic,
5554 nor will all TLS symbols. */
411e1bfb
AM
5555 if (h->dynindx == -1
5556 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5557 {
5558 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5559 return FALSE;
5560 }
65f38f15 5561
411e1bfb 5562 if ((gent->tls_type & TLS_LD) != 0)
411e1bfb 5563 {
951fd09b
AM
5564 gent->got.offset = htab->tlsld_got.offset;
5565 continue;
411e1bfb 5566 }
951fd09b
AM
5567
5568 s = htab->sgot;
5569 gent->got.offset = s->_raw_size;
e7b938ca 5570 s->_raw_size += (gent->tls_type & eh->tls_mask & TLS_GD) ? 16 : 8;
951fd09b
AM
5571 dyn = htab->elf.dynamic_sections_created;
5572 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h))
5573 htab->srelgot->_raw_size
e7b938ca 5574 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM
5575 ? 2 * sizeof (Elf64_External_Rela)
5576 : sizeof (Elf64_External_Rela));
411e1bfb
AM
5577 }
5578 else
5579 gent->got.offset = (bfd_vma) -1;
65f38f15 5580
65f38f15 5581 if (eh->dyn_relocs == NULL)
b34976b6 5582 return TRUE;
65f38f15
AM
5583
5584 /* In the shared -Bsymbolic case, discard space allocated for
5585 dynamic pc-relative relocs against symbols which turn out to be
5586 defined in regular objects. For the normal shared case, discard
5587 space for relocs that have become local due to symbol visibility
5588 changes. */
5589
5590 if (info->shared)
5591 {
5592 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
5593 && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
5594 || info->symbolic))
5595 {
5596 struct ppc_dyn_relocs **pp;
5597
5598 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 5599 {
65f38f15
AM
5600 p->count -= p->pc_count;
5601 p->pc_count = 0;
5602 if (p->count == 0)
5603 *pp = p->next;
5604 else
5605 pp = &p->next;
5bd4f169 5606 }
65f38f15
AM
5607 }
5608 }
5609 else
5610 {
5611 /* For the non-shared case, discard space for relocs against
5612 symbols which turn out to need copy relocs or are not
5613 dynamic. */
5614
5615 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM
5616 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5617 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
65f38f15
AM
5618 {
5619 /* Make sure this symbol is output as a dynamic symbol.
5620 Undefined weak syms won't yet be marked as dynamic. */
5621 if (h->dynindx == -1
5622 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5623 {
ec338859 5624 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
b34976b6 5625 return FALSE;
65f38f15
AM
5626 }
5627
5628 /* If that succeeded, we know we'll be keeping all the
5629 relocs. */
5630 if (h->dynindx != -1)
5631 goto keep;
5632 }
5633
5634 eh->dyn_relocs = NULL;
5635
ec338859 5636 keep: ;
65f38f15
AM
5637 }
5638
5639 /* Finally, allocate space. */
5640 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5641 {
5642 asection *sreloc = elf_section_data (p->sec)->sreloc;
5643 sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
5644 }
5645
b34976b6 5646 return TRUE;
65f38f15
AM
5647}
5648
5649/* Find any dynamic relocs that apply to read-only sections. */
5650
b34976b6 5651static bfd_boolean
65f38f15
AM
5652readonly_dynrelocs (h, inf)
5653 struct elf_link_hash_entry *h;
5654 PTR inf;
5655{
5656 struct ppc_link_hash_entry *eh;
5657 struct ppc_dyn_relocs *p;
5658
e92d460e
AM
5659 if (h->root.type == bfd_link_hash_warning)
5660 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5661
65f38f15
AM
5662 eh = (struct ppc_link_hash_entry *) h;
5663 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5664 {
5665 asection *s = p->sec->output_section;
5666
5667 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5668 {
5669 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5670
5671 info->flags |= DF_TEXTREL;
5672
5673 /* Not an error, just cut short the traversal. */
b34976b6 5674 return FALSE;
65f38f15
AM
5675 }
5676 }
b34976b6 5677 return TRUE;
65f38f15
AM
5678}
5679
5680/* Set the sizes of the dynamic sections. */
5681
b34976b6 5682static bfd_boolean
65f38f15
AM
5683ppc64_elf_size_dynamic_sections (output_bfd, info)
5684 bfd *output_bfd ATTRIBUTE_UNUSED;
5685 struct bfd_link_info *info;
5686{
5687 struct ppc_link_hash_table *htab;
5688 bfd *dynobj;
5689 asection *s;
b34976b6 5690 bfd_boolean relocs;
65f38f15
AM
5691 bfd *ibfd;
5692
5693 htab = ppc_hash_table (info);
5694 dynobj = htab->elf.dynobj;
5695 if (dynobj == NULL)
5696 abort ();
5697
5698 if (htab->elf.dynamic_sections_created)
5699 {
5700 /* Set the contents of the .interp section to the interpreter. */
5701 if (! info->shared)
5702 {
5703 s = bfd_get_section_by_name (dynobj, ".interp");
5704 if (s == NULL)
5705 abort ();
5706 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
5707 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5708 }
5709 }
5710
411e1bfb
AM
5711 if (htab->tlsld_got.refcount > 0)
5712 {
5713 htab->tlsld_got.offset = htab->sgot->_raw_size;
5714 htab->sgot->_raw_size += 16;
5715 if (info->shared)
5716 htab->srelgot->_raw_size += sizeof (Elf64_External_Rela);
5717 }
5718 else
5719 htab->tlsld_got.offset = (bfd_vma) -1;
5720
65f38f15
AM
5721 /* Set up .got offsets for local syms, and space for local dynamic
5722 relocs. */
5723 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5724 {
411e1bfb
AM
5725 struct got_entry **lgot_ents;
5726 struct got_entry **end_lgot_ents;
e7b938ca 5727 char *lgot_masks;
65f38f15
AM
5728 bfd_size_type locsymcount;
5729 Elf_Internal_Shdr *symtab_hdr;
5730 asection *srel;
5731
5732 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
5733 continue;
5734
5735 for (s = ibfd->sections; s != NULL; s = s->next)
5736 {
ec338859 5737 struct ppc_dyn_relocs *p;
65f38f15 5738
ec338859
AM
5739 for (p = *((struct ppc_dyn_relocs **)
5740 &elf_section_data (s)->local_dynrel);
5741 p != NULL;
5742 p = p->next)
65f38f15 5743 {
ec338859
AM
5744 if (!bfd_is_abs_section (p->sec)
5745 && bfd_is_abs_section (p->sec->output_section))
5746 {
5747 /* Input section has been discarded, either because
5748 it is a copy of a linkonce section or due to
5749 linker script /DISCARD/, so we'll be discarding
5750 the relocs too. */
5751 }
248866a8 5752 else if (p->count != 0)
ec338859
AM
5753 {
5754 srel = elf_section_data (p->sec)->sreloc;
5755 srel->_raw_size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM
5756 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
5757 info->flags |= DF_TEXTREL;
ec338859 5758 }
65f38f15
AM
5759 }
5760 }
5761
411e1bfb
AM
5762 lgot_ents = elf_local_got_ents (ibfd);
5763 if (!lgot_ents)
65f38f15
AM
5764 continue;
5765
5766 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5767 locsymcount = symtab_hdr->sh_info;
411e1bfb 5768 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 5769 lgot_masks = (char *) end_lgot_ents;
65f38f15
AM
5770 s = htab->sgot;
5771 srel = htab->srelgot;
e7b938ca 5772 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 5773 {
411e1bfb
AM
5774 struct got_entry *ent;
5775
5776 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
5777 if (ent->got.refcount > 0)
5778 {
e7b938ca 5779 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb
AM
5780 {
5781 if (htab->tlsld_got.offset == (bfd_vma) -1)
5782 {
5783 htab->tlsld_got.offset = s->_raw_size;
5784 s->_raw_size += 16;
5785 if (info->shared)
5786 srel->_raw_size += sizeof (Elf64_External_Rela);
5787 }
5788 ent->got.offset = htab->tlsld_got.offset;
5789 }
5790 else
5791 {
5792 ent->got.offset = s->_raw_size;
e7b938ca 5793 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb
AM
5794 {
5795 s->_raw_size += 16;
5796 if (info->shared)
5797 srel->_raw_size += 2 * sizeof (Elf64_External_Rela);
5798 }
5799 else
5800 {
5801 s->_raw_size += 8;
5802 if (info->shared)
5803 srel->_raw_size += sizeof (Elf64_External_Rela);
5804 }
5805 }
5806 }
5807 else
5808 ent->got.offset = (bfd_vma) -1;
65f38f15
AM
5809 }
5810 }
5811
5812 /* Allocate global sym .plt and .got entries, and space for global
5813 sym dynamic relocs. */
5814 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
5815
5816 /* We now have determined the sizes of the various dynamic sections.
5817 Allocate memory for them. */
b34976b6 5818 relocs = FALSE;
65f38f15
AM
5819 for (s = dynobj->sections; s != NULL; s = s->next)
5820 {
5821 if ((s->flags & SEC_LINKER_CREATED) == 0)
5822 continue;
5823
411e1bfb
AM
5824 /* Reset _cooked_size since prelim layout will set it wrongly,
5825 and a non-zero _cooked_size sticks. */
5826 s->_cooked_size = 0;
5827
721956f4
AM
5828 if (s == htab->sbrlt || s == htab->srelbrlt)
5829 /* These haven't been allocated yet; don't strip. */
5830 continue;
5831 else if (s == htab->splt
5832 || s == htab->sgot
5833 || s == htab->sglink)
65f38f15
AM
5834 {
5835 /* Strip this section if we don't need it; see the
5836 comment below. */
5bd4f169 5837 }
65f38f15 5838 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169
AM
5839 {
5840 if (s->_raw_size == 0)
5841 {
5842 /* If we don't need this section, strip it from the
5843 output file. This is mostly to handle .rela.bss and
5844 .rela.plt. We must create both sections in
5845 create_dynamic_sections, because they must be created
5846 before the linker maps input sections to output
5847 sections. The linker does that before
5848 adjust_dynamic_symbol is called, and it is that
5849 function which decides whether anything needs to go
5850 into these sections. */
5bd4f169
AM
5851 }
5852 else
5853 {
65f38f15 5854 if (s != htab->srelplt)
b34976b6 5855 relocs = TRUE;
5bd4f169
AM
5856
5857 /* We use the reloc_count field as a counter if we need
5858 to copy relocs into the output file. */
5859 s->reloc_count = 0;
5860 }
5861 }
65f38f15 5862 else
5bd4f169
AM
5863 {
5864 /* It's not one of our sections, so don't allocate space. */
5865 continue;
5866 }
5867
65f38f15 5868 if (s->_raw_size == 0)
5bd4f169
AM
5869 {
5870 _bfd_strip_section_from_output (info, s);
5871 continue;
5872 }
5873
5f333394
AM
5874 /* .plt is in the bss section. We don't initialise it. */
5875 if ((s->flags & SEC_LOAD) == 0)
5876 continue;
5877
65f38f15
AM
5878 /* Allocate memory for the section contents. We use bfd_zalloc
5879 here in case unused entries are not reclaimed before the
5880 section's contents are written out. This should not happen,
411e1bfb
AM
5881 but this way if it does we get a R_PPC64_NONE reloc in .rela
5882 sections instead of garbage.
5883 We also rely on the section contents being zero when writing
5884 the GOT. */
721956f4 5885 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
65f38f15 5886 if (s->contents == NULL)
b34976b6 5887 return FALSE;
5bd4f169
AM
5888 }
5889
e86ce104 5890 if (htab->elf.dynamic_sections_created)
5bd4f169
AM
5891 {
5892 /* Add some entries to the .dynamic section. We fill in the
5893 values later, in ppc64_elf_finish_dynamic_sections, but we
5894 must add the entries now so that we get the correct size for
5895 the .dynamic section. The DT_DEBUG entry is filled in by the
5896 dynamic linker and used by the debugger. */
dc810e39
AM
5897#define add_dynamic_entry(TAG, VAL) \
5898 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
5899
5900 if (!info->shared)
5bd4f169 5901 {
dc810e39 5902 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 5903 return FALSE;
5bd4f169
AM
5904 }
5905
9c07fe7c 5906 if (htab->splt != NULL && htab->splt->_raw_size != 0)
5bd4f169 5907 {
dc810e39
AM
5908 if (!add_dynamic_entry (DT_PLTGOT, 0)
5909 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5910 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM
5911 || !add_dynamic_entry (DT_JMPREL, 0)
5912 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 5913 return FALSE;
5bd4f169
AM
5914 }
5915
19397422
AM
5916 if (NO_OPD_RELOCS)
5917 {
5918 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
5919 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 5920 return FALSE;
19397422
AM
5921 }
5922
5bd4f169
AM
5923 if (relocs)
5924 {
dc810e39
AM
5925 if (!add_dynamic_entry (DT_RELA, 0)
5926 || !add_dynamic_entry (DT_RELASZ, 0)
5927 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 5928 return FALSE;
5bd4f169 5929
65f38f15
AM
5930 /* If any dynamic relocs apply to a read-only section,
5931 then we need a DT_TEXTREL entry. */
248866a8
AM
5932 if ((info->flags & DF_TEXTREL) == 0)
5933 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
5934 (PTR) info);
5bd4f169 5935
65f38f15 5936 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 5937 {
65f38f15 5938 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 5939 return FALSE;
5bd4f169 5940 }
5bd4f169 5941 }
5bd4f169 5942 }
65f38f15 5943#undef add_dynamic_entry
5bd4f169 5944
b34976b6 5945 return TRUE;
5bd4f169
AM
5946}
5947
721956f4 5948/* Determine the type of stub needed, if any, for a call. */
5bd4f169 5949
721956f4
AM
5950static INLINE enum ppc_stub_type
5951ppc_type_of_stub (input_sec, rel, hash, destination)
5952 asection *input_sec;
5953 const Elf_Internal_Rela *rel;
5954 struct ppc_link_hash_entry **hash;
5955 bfd_vma destination;
5bd4f169 5956{
721956f4
AM
5957 struct ppc_link_hash_entry *h = *hash;
5958 bfd_vma location;
5959 bfd_vma branch_offset;
5960 bfd_vma max_branch_offset;
5961 unsigned int r_type;
5bd4f169 5962
721956f4
AM
5963 if (h != NULL)
5964 {
5965 if (h->oh != NULL
721956f4 5966 && h->oh->dynindx != -1)
5bd4f169 5967 {
411e1bfb
AM
5968 struct plt_entry *ent;
5969 for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next)
5970 if (ent->addend == rel->r_addend
5971 && ent->plt.offset != (bfd_vma) -1)
5972 {
5973 *hash = (struct ppc_link_hash_entry *) h->oh;
5974 return ppc_stub_plt_call;
5975 }
5bd4f169
AM
5976 }
5977
721956f4
AM
5978 if (h->elf.root.type == bfd_link_hash_undefweak
5979 || h->elf.root.type == bfd_link_hash_undefined)
5980 return ppc_stub_none;
5d1634d7 5981 }
5d1634d7 5982
721956f4
AM
5983 /* Determine where the call point is. */
5984 location = (input_sec->output_offset
5985 + input_sec->output_section->vma
5986 + rel->r_offset);
5d1634d7 5987
721956f4
AM
5988 branch_offset = destination - location;
5989 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 5990
721956f4
AM
5991 /* Determine if a long branch stub is needed. */
5992 max_branch_offset = 1 << 25;
5993 if (r_type != (unsigned int) R_PPC64_REL24)
5994 max_branch_offset = 1 << 15;
5d1634d7 5995
721956f4
AM
5996 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
5997 /* We need a stub. Figure out whether a long_branch or plt_branch
5998 is needed later. */
5999 return ppc_stub_long_branch;
5d1634d7 6000
721956f4 6001 return ppc_stub_none;
5d1634d7
AM
6002}
6003
6004/* Build a .plt call stub. */
6005
6006static bfd_byte *
6007build_plt_stub (obfd, p, offset, glink)
6008 bfd *obfd;
6009 bfd_byte *p;
6010 int offset;
6011 int glink;
6012{
6013#define PPC_LO(v) ((v) & 0xffff)
6014#define PPC_HI(v) (((v) >> 16) & 0xffff)
6015#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6016
6017 if (glink)
6018 bfd_put_32 (obfd, LD_R2_40R1, p), p += 4;
6019 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
6020 if (!glink)
6021 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
6022 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6023 if (PPC_HA (offset + 8) != PPC_HA (offset))
6024 bfd_put_32 (obfd, ADDIS_R12_R12_1, p), p += 4;
6025 offset += 8;
6026 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
6027 if (PPC_HA (offset + 8) != PPC_HA (offset))
6028 bfd_put_32 (obfd, ADDIS_R12_R12_1, p), p += 4;
6029 offset += 8;
6030 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
6031 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6032 bfd_put_32 (obfd, BCTR, p), p += 4;
6033 return p;
6034}
6035
b34976b6 6036static bfd_boolean
721956f4
AM
6037ppc_build_one_stub (gen_entry, in_arg)
6038 struct bfd_hash_entry *gen_entry;
6039 PTR in_arg;
5d1634d7 6040{
721956f4
AM
6041 struct ppc_stub_hash_entry *stub_entry;
6042 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM
6043 struct bfd_link_info *info;
6044 struct ppc_link_hash_table *htab;
721956f4
AM
6045 asection *stub_sec;
6046 bfd *stub_bfd;
6047 bfd_byte *loc;
6048 bfd_byte *p;
6049 unsigned int indx;
411e1bfb 6050 struct plt_entry *ent;
721956f4
AM
6051 bfd_vma off;
6052 int size;
5d1634d7 6053
721956f4
AM
6054 /* Massage our args to the form they really have. */
6055 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
6056 info = (struct bfd_link_info *) in_arg;
5d1634d7 6057
5d1634d7 6058 htab = ppc_hash_table (info);
721956f4 6059 stub_sec = stub_entry->stub_sec;
5d1634d7 6060
721956f4
AM
6061 /* Make a note of the offset within the stubs for this entry. */
6062 stub_entry->stub_offset = stub_sec->_cooked_size;
6063 loc = stub_sec->contents + stub_entry->stub_offset;
6064
6065 stub_bfd = stub_sec->owner;
6066
6067 switch (stub_entry->stub_type)
5d1634d7 6068 {
721956f4
AM
6069 case ppc_stub_long_branch:
6070 /* Branches are relative. This is where we are going to. */
6071 off = (stub_entry->target_value
6072 + stub_entry->target_section->output_offset
6073 + stub_entry->target_section->output_section->vma);
5d1634d7 6074
721956f4
AM
6075 /* And this is where we are coming from. */
6076 off -= (stub_entry->stub_offset
6077 + stub_sec->output_offset
6078 + stub_sec->output_section->vma);
e86ce104 6079
721956f4 6080 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
e86ce104 6081
721956f4
AM
6082 bfd_put_32 (stub_bfd, (bfd_vma) B_DOT | (off & 0x3fffffc), loc);
6083 size = 4;
6084 break;
e86ce104 6085
721956f4
AM
6086 case ppc_stub_plt_branch:
6087 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6088 stub_entry->root.string + 9,
b34976b6 6089 FALSE, FALSE);
721956f4
AM
6090 if (br_entry == NULL)
6091 {
6092 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
6093 stub_entry->root.string + 9);
b34976b6
AM
6094 htab->stub_error = TRUE;
6095 return FALSE;
721956f4
AM
6096 }
6097
6098 off = (stub_entry->target_value
6099 + stub_entry->target_section->output_offset
6100 + stub_entry->target_section->output_section->vma);
6101
6102 bfd_put_64 (htab->sbrlt->owner, off,
6103 htab->sbrlt->contents + br_entry->offset);
6104
6105 if (info->shared)
6106 {
6107 /* Create a reloc for the branch lookup table entry. */
6108 Elf_Internal_Rela rela;
947216bf 6109 bfd_byte *loc;
5d1634d7 6110
721956f4
AM
6111 rela.r_offset = (br_entry->offset
6112 + htab->sbrlt->output_offset
6113 + htab->sbrlt->output_section->vma);
6114 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
6115 rela.r_addend = off;
6116
947216bf
AM
6117 loc = htab->srelbrlt->contents;
6118 loc += htab->srelbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
6119 bfd_elf64_swap_reloca_out (htab->srelbrlt->owner, &rela, loc);
721956f4
AM
6120 }
6121
6122 off = (br_entry->offset
6123 + htab->sbrlt->output_offset
6124 + htab->sbrlt->output_section->vma
6125 - elf_gp (htab->sbrlt->output_section->owner)
6126 - TOC_BASE_OFF);
6127
6128 if (off + 0x80000000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM
6129 {
6130 (*_bfd_error_handler)
e86ce104 6131 (_("linkage table error against `%s'"),
721956f4 6132 stub_entry->root.string);
5d1634d7 6133 bfd_set_error (bfd_error_bad_value);
b34976b6
AM
6134 htab->stub_error = TRUE;
6135 return FALSE;
5d1634d7 6136 }
41bd81ab 6137
721956f4
AM
6138 indx = off;
6139 bfd_put_32 (stub_bfd, (bfd_vma) ADDIS_R12_R2 | PPC_HA (indx), loc);
6140 bfd_put_32 (stub_bfd, (bfd_vma) LD_R11_0R12 | PPC_LO (indx), loc + 4);
6141 bfd_put_32 (stub_bfd, (bfd_vma) MTCTR_R11, loc + 8);
6142 bfd_put_32 (stub_bfd, (bfd_vma) BCTR, loc + 12);
6143 size = 16;
6144 break;
5d1634d7 6145
721956f4 6146 case ppc_stub_plt_call:
c862ae31
AM
6147 /* Do the best we can for shared libraries built without
6148 exporting ".foo" for each "foo". This can happen when symbol
6149 versioning scripts strip all bar a subset of symbols. */
6150 if (stub_entry->h->oh->root.type != bfd_link_hash_defined
6151 && stub_entry->h->oh->root.type != bfd_link_hash_defweak)
6152 {
6153 /* Point the symbol at the stub. There may be multiple stubs,
6154 we don't really care; The main thing is to make this sym
6155 defined somewhere. */
6156 stub_entry->h->oh->root.type = bfd_link_hash_defined;
6157 stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec;
6158 stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset;
6159 }
6160
721956f4 6161 /* Now build the stub. */
411e1bfb
AM
6162 off = (bfd_vma) -1;
6163 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6164 if (ent->addend == stub_entry->addend)
6165 {
6166 off = ent->plt.offset;
6167 break;
6168 }
721956f4
AM
6169 if (off >= (bfd_vma) -2)
6170 abort ();
6171
6172 off &= ~ (bfd_vma) 1;
6173 off += (htab->splt->output_offset
6174 + htab->splt->output_section->vma
6175 - elf_gp (htab->splt->output_section->owner)
6176 - TOC_BASE_OFF);
6177
6178 if (off + 0x80000000 > 0xffffffff || (off & 7) != 0)
6179 {
6180 (*_bfd_error_handler)
6181 (_("linkage table error against `%s'"),
6182 stub_entry->h->elf.root.root.string);
6183 bfd_set_error (bfd_error_bad_value);
b34976b6
AM
6184 htab->stub_error = TRUE;
6185 return FALSE;
721956f4
AM
6186 }
6187
6188 p = build_plt_stub (stub_bfd, loc, (int) off, 0);
6189 size = p - loc;
6190 break;
6191
6192 default:
6193 BFD_FAIL ();
b34976b6 6194 return FALSE;
721956f4
AM
6195 }
6196
6197 stub_sec->_cooked_size += size;
b34976b6 6198 return TRUE;
721956f4
AM
6199}
6200
6201/* As above, but don't actually build the stub. Just bump offset so
6202 we know stub section sizes, and select plt_branch stubs where
6203 long_branch stubs won't do. */
6204
b34976b6 6205static bfd_boolean
721956f4
AM
6206ppc_size_one_stub (gen_entry, in_arg)
6207 struct bfd_hash_entry *gen_entry;
6208 PTR in_arg;
6209{
6210 struct ppc_stub_hash_entry *stub_entry;
6211 struct ppc_link_hash_table *htab;
6212 bfd_vma off;
6213 int size;
6214
6215 /* Massage our args to the form they really have. */
6216 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
6217 htab = (struct ppc_link_hash_table *) in_arg;
6218
6219 if (stub_entry->stub_type == ppc_stub_plt_call)
6220 {
411e1bfb 6221 struct plt_entry *ent;
58ac9f71 6222 off = (bfd_vma) -1;
411e1bfb
AM
6223 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6224 if (ent->addend == stub_entry->addend)
6225 {
6226 off = ent->plt.offset & ~(bfd_vma) 1;
6227 break;
6228 }
58ac9f71 6229 if (off >= (bfd_vma) -2)
411e1bfb 6230 abort ();
721956f4
AM
6231 off += (htab->splt->output_offset
6232 + htab->splt->output_section->vma
6233 - elf_gp (htab->splt->output_section->owner)
6234 - TOC_BASE_OFF);
6235
6236 size = 28;
6237 if (PPC_HA ((int) off + 16) != PPC_HA ((int) off))
6238 size += 4;
6239 }
6240 else
6241 {
6242 /* ppc_stub_long_branch or ppc_stub_plt_branch. */
6243 stub_entry->stub_type = ppc_stub_long_branch;
6244 size = 4;
6245
6246 off = (stub_entry->target_value
6247 + stub_entry->target_section->output_offset
6248 + stub_entry->target_section->output_section->vma);
6249 off -= (stub_entry->stub_sec->_raw_size
6250 + stub_entry->stub_sec->output_offset
6251 + stub_entry->stub_sec->output_section->vma);
6252
6253 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
6254 {
6255 struct ppc_branch_hash_entry *br_entry;
6256
6257 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6258 stub_entry->root.string + 9,
b34976b6 6259 TRUE, FALSE);
721956f4
AM
6260 if (br_entry == NULL)
6261 {
6262 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
6263 stub_entry->root.string + 9);
b34976b6
AM
6264 htab->stub_error = TRUE;
6265 return FALSE;
721956f4
AM
6266 }
6267
6268 if (br_entry->iter != htab->stub_iteration)
6269 {
6270 br_entry->iter = htab->stub_iteration;
6271 br_entry->offset = htab->sbrlt->_raw_size;
6272 htab->sbrlt->_raw_size += 8;
6273 }
6274 stub_entry->stub_type = ppc_stub_plt_branch;
6275 size = 16;
6276 }
6277 }
6278
6279 stub_entry->stub_sec->_raw_size += size;
b34976b6 6280 return TRUE;
721956f4
AM
6281}
6282
6283/* Set up various things so that we can make a list of input sections
6284 for each output section included in the link. Returns -1 on error,
cedb70c5 6285 0 when no stubs will be needed, and 1 on success. */
721956f4
AM
6286
6287int
6288ppc64_elf_setup_section_lists (output_bfd, info)
6289 bfd *output_bfd;
6290 struct bfd_link_info *info;
6291{
6292 bfd *input_bfd;
721956f4
AM
6293 int top_id, top_index;
6294 asection *section;
6295 asection **input_list, **list;
6296 bfd_size_type amt;
6297 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6298
805fc799
AM
6299 if (htab->elf.root.creator->flavour != bfd_target_elf_flavour
6300 || htab->sbrlt == NULL)
721956f4
AM
6301 return 0;
6302
1e2f5b6e
AM
6303 /* Find the top input section id. */
6304 for (input_bfd = info->input_bfds, top_id = 0;
721956f4
AM
6305 input_bfd != NULL;
6306 input_bfd = input_bfd->link_next)
6307 {
721956f4
AM
6308 for (section = input_bfd->sections;
6309 section != NULL;
6310 section = section->next)
6311 {
6312 if (top_id < section->id)
6313 top_id = section->id;
6314 }
6315 }
721956f4
AM
6316
6317 amt = sizeof (struct map_stub) * (top_id + 1);
6318 htab->stub_group = (struct map_stub *) bfd_zmalloc (amt);
6319 if (htab->stub_group == NULL)
6320 return -1;
6321
6322 /* We can't use output_bfd->section_count here to find the top output
6323 section index as some sections may have been removed, and
6324 _bfd_strip_section_from_output doesn't renumber the indices. */
6325 for (section = output_bfd->sections, top_index = 0;
6326 section != NULL;
6327 section = section->next)
6328 {
6329 if (top_index < section->index)
6330 top_index = section->index;
6331 }
6332
6333 htab->top_index = top_index;
6334 amt = sizeof (asection *) * (top_index + 1);
6335 input_list = (asection **) bfd_malloc (amt);
6336 htab->input_list = input_list;
6337 if (input_list == NULL)
6338 return -1;
6339
6340 /* For sections we aren't interested in, mark their entries with a
6341 value we can check later. */
6342 list = input_list + top_index;
6343 do
6344 *list = bfd_abs_section_ptr;
6345 while (list-- != input_list);
6346
6347 for (section = output_bfd->sections;
6348 section != NULL;
6349 section = section->next)
6350 {
6351 if ((section->flags & SEC_CODE) != 0)
6352 input_list[section->index] = NULL;
6353 }
6354
6355 return 1;
6356}
6357
6358/* The linker repeatedly calls this function for each input section,
6359 in the order that input sections are linked into output sections.
6360 Build lists of input sections to determine groupings between which
6361 we may insert linker stubs. */
6362
6363void
805fc799 6364ppc64_elf_next_input_section (info, isec)
721956f4
AM
6365 struct bfd_link_info *info;
6366 asection *isec;
6367{
6368 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6369
805fc799 6370 if (isec->output_section->index <= htab->top_index)
721956f4
AM
6371 {
6372 asection **list = htab->input_list + isec->output_section->index;
6373 if (*list != bfd_abs_section_ptr)
6374 {
6375 /* Steal the link_sec pointer for our list. */
6376#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
6377 /* This happens to make the list in reverse order,
6378 which is what we want. */
6379 PREV_SEC (isec) = *list;
6380 *list = isec;
6381 }
6382 }
6383}
6384
6385/* See whether we can group stub sections together. Grouping stub
6386 sections may result in fewer stubs. More importantly, we need to
6387 put all .init* and .fini* stubs at the beginning of the .init or
6388 .fini output sections respectively, because glibc splits the
6389 _init and _fini functions into multiple parts. Putting a stub in
6390 the middle of a function is not a good idea. */
6391
6392static void
6393group_sections (htab, stub_group_size, stubs_always_before_branch)
6394 struct ppc_link_hash_table *htab;
6395 bfd_size_type stub_group_size;
b34976b6 6396 bfd_boolean stubs_always_before_branch;
721956f4
AM
6397{
6398 asection **list = htab->input_list + htab->top_index;
6399 do
6400 {
6401 asection *tail = *list;
6402 if (tail == bfd_abs_section_ptr)
6403 continue;
6404 while (tail != NULL)
6405 {
6406 asection *curr;
6407 asection *prev;
6408 bfd_size_type total;
58ac9f71 6409 bfd_boolean big_sec;
721956f4
AM
6410
6411 curr = tail;
6412 if (tail->_cooked_size)
6413 total = tail->_cooked_size;
6414 else
6415 total = tail->_raw_size;
58ac9f71
AM
6416 big_sec = total >= stub_group_size;
6417
721956f4
AM
6418 while ((prev = PREV_SEC (curr)) != NULL
6419 && ((total += curr->output_offset - prev->output_offset)
6420 < stub_group_size))
6421 curr = prev;
6422
6423 /* OK, the size from the start of CURR to the end is less
6424 than stub_group_size and thus can be handled by one stub
6425 section. (or the tail section is itself larger than
6426 stub_group_size, in which case we may be toast.) We
6427 should really be keeping track of the total size of stubs
6428 added here, as stubs contribute to the final output
6429 section size. That's a little tricky, and this way will
6430 only break if stubs added make the total size more than
6431 2^25, ie. for the default stub_group_size, if stubs total
58ac9f71 6432 more than 2097152 bytes, or nearly 75000 plt call stubs. */
721956f4
AM
6433 do
6434 {
6435 prev = PREV_SEC (tail);
6436 /* Set up this stub group. */
6437 htab->stub_group[tail->id].link_sec = curr;
6438 }
6439 while (tail != curr && (tail = prev) != NULL);
6440
6441 /* But wait, there's more! Input sections up to stub_group_size
58ac9f71
AM
6442 bytes before the stub section can be handled by it too.
6443 Don't do this if we have a really large section after the
6444 stubs, as adding more stubs increases the chance that
6445 branches may not reach into the stub section. */
6446 if (!stubs_always_before_branch && !big_sec)
721956f4
AM
6447 {
6448 total = 0;
6449 while (prev != NULL
6450 && ((total += tail->output_offset - prev->output_offset)
6451 < stub_group_size))
6452 {
6453 tail = prev;
6454 prev = PREV_SEC (tail);
6455 htab->stub_group[tail->id].link_sec = curr;
6456 }
6457 }
6458 tail = prev;
6459 }
6460 }
6461 while (list-- != htab->input_list);
6462 free (htab->input_list);
6463#undef PREV_SEC
6464}
6465
721956f4
AM
6466/* Determine and set the size of the stub section for a final link.
6467
6468 The basic idea here is to examine all the relocations looking for
6469 PC-relative calls to a target that is unreachable with a "bl"
6470 instruction. */
6471
b34976b6 6472bfd_boolean
721956f4
AM
6473ppc64_elf_size_stubs (output_bfd, stub_bfd, info, group_size,
6474 add_stub_section, layout_sections_again)
6475 bfd *output_bfd;
6476 bfd *stub_bfd;
6477 struct bfd_link_info *info;
6478 bfd_signed_vma group_size;
6479 asection * (*add_stub_section) PARAMS ((const char *, asection *));
6480 void (*layout_sections_again) PARAMS ((void));
6481{
6482 bfd_size_type stub_group_size;
b34976b6 6483 bfd_boolean stubs_always_before_branch;
721956f4
AM
6484 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6485
6486 /* Stash our params away. */
6487 htab->stub_bfd = stub_bfd;
6488 htab->add_stub_section = add_stub_section;
6489 htab->layout_sections_again = layout_sections_again;
6490 stubs_always_before_branch = group_size < 0;
6491 if (group_size < 0)
6492 stub_group_size = -group_size;
6493 else
6494 stub_group_size = group_size;
6495 if (stub_group_size == 1)
6496 {
6497 /* Default values. */
58ac9f71
AM
6498 if (stubs_always_before_branch)
6499 {
6500 stub_group_size = 0x1e00000;
6501 if (htab->has_14bit_branch)
6502 stub_group_size = 0x7800;
6503 }
6504 else
6505 {
6506 stub_group_size = 0x1c00000;
6507 if (htab->has_14bit_branch)
6508 stub_group_size = 0x7000;
6509 }
721956f4
AM
6510 }
6511
6512 group_sections (htab, stub_group_size, stubs_always_before_branch);
6513
721956f4
AM
6514 while (1)
6515 {
6516 bfd *input_bfd;
6517 unsigned int bfd_indx;
6518 asection *stub_sec;
b34976b6 6519 bfd_boolean stub_changed;
721956f4
AM
6520
6521 htab->stub_iteration += 1;
b34976b6 6522 stub_changed = FALSE;
721956f4
AM
6523
6524 for (input_bfd = info->input_bfds, bfd_indx = 0;
6525 input_bfd != NULL;
6526 input_bfd = input_bfd->link_next, bfd_indx++)
6527 {
6528 Elf_Internal_Shdr *symtab_hdr;
6529 asection *section;
6cdc0ccc 6530 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM
6531
6532 /* We'll need the symbol table in a second. */
6533 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6534 if (symtab_hdr->sh_info == 0)
6535 continue;
6536
721956f4
AM
6537 /* Walk over each section attached to the input bfd. */
6538 for (section = input_bfd->sections;
6539 section != NULL;
6540 section = section->next)
6541 {
721956f4 6542 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM
6543
6544 /* If there aren't any relocs, then there's nothing more
6545 to do. */
6546 if ((section->flags & SEC_RELOC) == 0
6547 || section->reloc_count == 0)
6548 continue;
6549
6550 /* If this section is a link-once section that will be
6551 discarded, then don't create any stubs. */
6552 if (section->output_section == NULL
6553 || section->output_section->owner != output_bfd)
6554 continue;
6555
1e2f5b6e
AM
6556 /* Get the relocs. */
6557 internal_relocs
6558 = _bfd_elf64_link_read_relocs (input_bfd, section, NULL,
6559 (Elf_Internal_Rela *) NULL,
6560 info->keep_memory);
721956f4 6561 if (internal_relocs == NULL)
1e2f5b6e 6562 goto error_ret_free_local;
721956f4
AM
6563
6564 /* Now examine each relocation. */
6565 irela = internal_relocs;
6566 irelaend = irela + section->reloc_count;
6567 for (; irela < irelaend; irela++)
6568 {
6569 unsigned int r_type, r_indx;
6570 enum ppc_stub_type stub_type;
6571 struct ppc_stub_hash_entry *stub_entry;
6572 asection *sym_sec;
6573 bfd_vma sym_value;
6574 bfd_vma destination;
6575 struct ppc_link_hash_entry *hash;
411e1bfb
AM
6576 struct elf_link_hash_entry *h;
6577 Elf_Internal_Sym *sym;
721956f4
AM
6578 char *stub_name;
6579 const asection *id_sec;
6580
6581 r_type = ELF64_R_TYPE (irela->r_info);
6582 r_indx = ELF64_R_SYM (irela->r_info);
6583
04c9666a 6584 if (r_type >= (unsigned int) R_PPC64_max)
721956f4
AM
6585 {
6586 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 6587 goto error_ret_free_internal;
721956f4
AM
6588 }
6589
6590 /* Only look for stubs on branch instructions. */
6591 if (r_type != (unsigned int) R_PPC64_REL24
6592 && r_type != (unsigned int) R_PPC64_REL14
6593 && r_type != (unsigned int) R_PPC64_REL14_BRTAKEN
6594 && r_type != (unsigned int) R_PPC64_REL14_BRNTAKEN)
6595 continue;
6596
6597 /* Now determine the call target, its name, value,
6598 section. */
721956f4 6599 destination = 0;
411e1bfb
AM
6600 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6601 r_indx, input_bfd))
6602 goto error_ret_free_internal;
6603 hash = (struct ppc_link_hash_entry *) h;
6604
6605 if (hash == NULL)
721956f4
AM
6606 {
6607 /* It's a local symbol. */
411e1bfb 6608 sym_value = sym->st_value;
721956f4
AM
6609 destination = (sym_value + irela->r_addend
6610 + sym_sec->output_offset
6611 + sym_sec->output_section->vma);
6612 }
6613 else
6614 {
6615 /* It's an external symbol. */
411e1bfb 6616 sym_value = 0;
721956f4
AM
6617 if (hash->elf.root.type == bfd_link_hash_defined
6618 || hash->elf.root.type == bfd_link_hash_defweak)
6619 {
721956f4
AM
6620 sym_value = hash->elf.root.u.def.value;
6621 if (sym_sec->output_section != NULL)
6622 destination = (sym_value + irela->r_addend
6623 + sym_sec->output_offset
6624 + sym_sec->output_section->vma);
6625 }
6626 else if (hash->elf.root.type == bfd_link_hash_undefweak)
6627 ;
6628 else if (hash->elf.root.type == bfd_link_hash_undefined)
6629 ;
6630 else
6631 {
6632 bfd_set_error (bfd_error_bad_value);
6633 goto error_ret_free_internal;
6634 }
6635 }
6636
6637 /* Determine what (if any) linker stub is needed. */
6638 stub_type = ppc_type_of_stub (section, irela, &hash,
6639 destination);
6640 if (stub_type == ppc_stub_none)
6641 continue;
6642
411e1bfb
AM
6643 /* __tls_get_addr calls might be eliminated. */
6644 if (stub_type != ppc_stub_plt_call
6645 && hash != NULL
6646 && &hash->elf == htab->tls_get_addr
6647 && section->has_tls_reloc
6648 && irela != internal_relocs)
6649 {
6650 /* Get tls info. */
e7b938ca 6651 char *tls_mask;
411e1bfb 6652
e7b938ca 6653 if (!get_tls_mask (&tls_mask, &local_syms,
411e1bfb
AM
6654 irela - 1, input_bfd))
6655 goto error_ret_free_internal;
e7b938ca 6656 if (*tls_mask != 0)
411e1bfb
AM
6657 continue;
6658 }
6659
721956f4
AM
6660 /* Support for grouping stub sections. */
6661 id_sec = htab->stub_group[section->id].link_sec;
6662
6663 /* Get the name of this stub. */
6664 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
6665 if (!stub_name)
6666 goto error_ret_free_internal;
6667
6668 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 6669 stub_name, FALSE, FALSE);
721956f4
AM
6670 if (stub_entry != NULL)
6671 {
6672 /* The proper stub has already been created. */
6673 free (stub_name);
6674 continue;
6675 }
6676
6677 stub_entry = ppc_add_stub (stub_name, section, htab);
6678 if (stub_entry == NULL)
6679 {
6680 free (stub_name);
6cdc0ccc
AM
6681 error_ret_free_internal:
6682 if (elf_section_data (section)->relocs == NULL)
6683 free (internal_relocs);
6684 error_ret_free_local:
6685 if (local_syms != NULL
6686 && (symtab_hdr->contents
6687 != (unsigned char *) local_syms))
6688 free (local_syms);
b34976b6 6689 return FALSE;
721956f4
AM
6690 }
6691
6692 stub_entry->target_value = sym_value;
6693 stub_entry->target_section = sym_sec;
6694 stub_entry->stub_type = stub_type;
6695 stub_entry->h = hash;
411e1bfb 6696 stub_entry->addend = irela->r_addend;
b34976b6 6697 stub_changed = TRUE;
721956f4
AM
6698 }
6699
6700 /* We're done with the internal relocs, free them. */
6cdc0ccc 6701 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 6702 free (internal_relocs);
721956f4 6703 }
6cdc0ccc
AM
6704
6705 if (local_syms != NULL
6706 && symtab_hdr->contents != (unsigned char *) local_syms)
6707 {
6708 if (!info->keep_memory)
6709 free (local_syms);
6710 else
6711 symtab_hdr->contents = (unsigned char *) local_syms;
6712 }
721956f4
AM
6713 }
6714
6715 if (!stub_changed)
6716 break;
6717
6718 /* OK, we've added some stubs. Find out the new size of the
6719 stub sections. */
6720 for (stub_sec = htab->stub_bfd->sections;
6721 stub_sec != NULL;
6722 stub_sec = stub_sec->next)
6723 {
6724 stub_sec->_raw_size = 0;
6725 stub_sec->_cooked_size = 0;
6726 }
6727 htab->sbrlt->_raw_size = 0;
6728 htab->sbrlt->_cooked_size = 0;
6729
6730 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab);
6731
6732 /* Ask the linker to do its stuff. */
6733 (*htab->layout_sections_again) ();
6734 }
6735
afbe61cf
AM
6736 /* It would be nice to strip .branch_lt from the output if the
6737 section is empty, but it's too late. If we strip sections here,
6738 the dynamic symbol table is corrupted since the section symbol
6739 for the stripped section isn't written. */
721956f4 6740
b34976b6 6741 return TRUE;
721956f4
AM
6742}
6743
6744/* Called after we have determined section placement. If sections
805fc799 6745 move, we'll be called again. Provide a value for TOCstart. */
721956f4 6746
805fc799
AM
6747bfd_vma
6748ppc64_elf_toc (obfd)
5d1634d7 6749 bfd *obfd;
721956f4 6750{
805fc799
AM
6751 asection *s;
6752 bfd_vma TOCstart;
721956f4 6753
805fc799
AM
6754 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
6755 order. The TOC starts where the first of these sections starts. */
6756 s = bfd_get_section_by_name (obfd, ".got");
6757 if (s == NULL)
6758 s = bfd_get_section_by_name (obfd, ".toc");
6759 if (s == NULL)
6760 s = bfd_get_section_by_name (obfd, ".tocbss");
6761 if (s == NULL)
6762 s = bfd_get_section_by_name (obfd, ".plt");
6763 if (s == NULL)
6764 {
6765 /* This may happen for
6766 o references to TOC base (SYM@toc / TOC[tc0]) without a
6767 .toc directive
6768 o bad linker script
6769 o --gc-sections and empty TOC sections
6770
6771 FIXME: Warn user? */
6772
6773 /* Look for a likely section. We probably won't even be
6774 using TOCstart. */
6775 for (s = obfd->sections; s != NULL; s = s->next)
6776 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
6777 == (SEC_ALLOC | SEC_SMALL_DATA))
6778 break;
721956f4 6779 if (s == NULL)
805fc799
AM
6780 for (s = obfd->sections; s != NULL; s = s->next)
6781 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
6782 == (SEC_ALLOC | SEC_SMALL_DATA))
6783 break;
721956f4 6784 if (s == NULL)
805fc799
AM
6785 for (s = obfd->sections; s != NULL; s = s->next)
6786 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
6787 break;
721956f4 6788 if (s == NULL)
805fc799
AM
6789 for (s = obfd->sections; s != NULL; s = s->next)
6790 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
6791 break;
6792 }
721956f4 6793
805fc799
AM
6794 TOCstart = 0;
6795 if (s != NULL)
6796 TOCstart = s->output_section->vma + s->output_offset;
721956f4 6797
805fc799 6798 return TOCstart;
721956f4
AM
6799}
6800
6801/* Build all the stubs associated with the current output file.
6802 The stubs are kept in a hash table attached to the main linker
6803 hash table. This function is called via gldelf64ppc_finish. */
6804
b34976b6 6805bfd_boolean
721956f4
AM
6806ppc64_elf_build_stubs (info)
6807 struct bfd_link_info *info;
5d1634d7
AM
6808{
6809 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 6810 asection *stub_sec;
5d1634d7
AM
6811 bfd_vma plt_r2;
6812 bfd_byte *p;
6813
721956f4
AM
6814 for (stub_sec = htab->stub_bfd->sections;
6815 stub_sec != NULL;
6816 stub_sec = stub_sec->next)
6817 {
6818 bfd_size_type size;
6819
6820 /* Allocate memory to hold the linker stubs. */
6821 size = stub_sec->_raw_size;
6822 if (size != 0)
6823 {
6824 stub_sec->contents = (bfd_byte *) bfd_zalloc (htab->stub_bfd, size);
6825 if (stub_sec->contents == NULL)
b34976b6 6826 return FALSE;
721956f4
AM
6827 }
6828 stub_sec->_cooked_size = 0;
6829 }
5d1634d7 6830
721956f4 6831 if (htab->splt != NULL)
5d1634d7 6832 {
9f951329
AM
6833 unsigned int indx;
6834
721956f4
AM
6835 /* Build the .glink plt call stub. */
6836 plt_r2 = (htab->splt->output_offset
6837 + htab->splt->output_section->vma
6838 - elf_gp (htab->splt->output_section->owner)
6839 - TOC_BASE_OFF);
6840 p = htab->sglink->contents;
6841 p = build_plt_stub (htab->sglink->owner, p, (int) plt_r2, 1);
9f951329 6842 while (p < htab->sglink->contents + GLINK_CALL_STUB_SIZE)
721956f4
AM
6843 {
6844 bfd_put_32 (htab->sglink->owner, NOP, p);
6845 p += 4;
6846 }
721956f4 6847
9f951329
AM
6848 /* Build the .glink lazy link call stubs. */
6849 indx = 0;
6850 while (p < htab->sglink->contents + htab->sglink->_raw_size)
6851 {
6852 if (indx < 0x8000)
6853 {
6854 bfd_put_32 (htab->sglink->owner, LI_R0_0 | indx, p);
6855 p += 4;
6856 }
6857 else
6858 {
6859 bfd_put_32 (htab->sglink->owner, LIS_R0_0 | PPC_HI (indx), p);
6860 p += 4;
6861 bfd_put_32 (htab->sglink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
6862 p += 4;
6863 }
6864 bfd_put_32 (htab->sglink->owner,
6865 B_DOT | ((htab->sglink->contents - p) & 0x3fffffc), p);
a16d5acb 6866 indx++;
9f951329
AM
6867 p += 4;
6868 }
6869 htab->sglink->_cooked_size = p - htab->sglink->contents;
5d1634d7 6870 }
5d1634d7 6871
721956f4
AM
6872 if (htab->sbrlt->_raw_size != 0)
6873 {
6874 htab->sbrlt->contents = (bfd_byte *) bfd_zalloc (htab->sbrlt->owner,
6875 htab->sbrlt->_raw_size);
6876 if (htab->sbrlt->contents == NULL)
b34976b6 6877 return FALSE;
721956f4 6878 }
5d1634d7 6879
721956f4
AM
6880 /* Build the stubs as directed by the stub hash table. */
6881 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 6882
721956f4
AM
6883 for (stub_sec = htab->stub_bfd->sections;
6884 stub_sec != NULL;
6885 stub_sec = stub_sec->next)
6886 {
6887 if (stub_sec->_raw_size != stub_sec->_cooked_size)
6888 break;
6889 }
5d1634d7 6890
721956f4 6891 if (stub_sec != NULL
5d1634d7
AM
6892 || htab->sglink->_raw_size != htab->sglink->_cooked_size)
6893 {
b34976b6 6894 htab->stub_error = TRUE;
721956f4 6895 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 6896 }
721956f4
AM
6897
6898 return !htab->stub_error;
5bd4f169
AM
6899}
6900
5bd4f169
AM
6901/* The RELOCATE_SECTION function is called by the ELF backend linker
6902 to handle the relocations for a section.
6903
6904 The relocs are always passed as Rela structures; if the section
6905 actually uses Rel structures, the r_addend field will always be
6906 zero.
6907
6908 This function is responsible for adjust the section contents as
6909 necessary, and (if using Rela relocs and generating a
6910 relocateable output file) adjusting the reloc addend as
6911 necessary.
6912
6913 This function does not have to worry about setting the reloc
6914 address or the reloc symbol index.
6915
6916 LOCAL_SYMS is a pointer to the swapped in local symbols.
6917
6918 LOCAL_SECTIONS is an array giving the section in the input file
6919 corresponding to the st_shndx field of each local symbol.
6920
6921 The global hash table entry for the global symbols can be found
6922 via elf_sym_hashes (input_bfd).
6923
6924 When generating relocateable output, this function must handle
6925 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6926 going to be the section symbol corresponding to the output
6927 section, which means that the addend must be adjusted
6928 accordingly. */
6929
b34976b6 6930static bfd_boolean
5bd4f169
AM
6931ppc64_elf_relocate_section (output_bfd, info, input_bfd, input_section,
6932 contents, relocs, local_syms, local_sections)
6933 bfd *output_bfd;
6934 struct bfd_link_info *info;
6935 bfd *input_bfd;
6936 asection *input_section;
6937 bfd_byte *contents;
6938 Elf_Internal_Rela *relocs;
6939 Elf_Internal_Sym *local_syms;
6940 asection **local_sections;
6941{
65f38f15 6942 struct ppc_link_hash_table *htab;
5bd4f169
AM
6943 Elf_Internal_Shdr *symtab_hdr;
6944 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM
6945 Elf_Internal_Rela *rel;
6946 Elf_Internal_Rela *relend;
411e1bfb
AM
6947 Elf_Internal_Rela outrel;
6948 bfd_byte *loc;
411e1bfb 6949 struct got_entry **local_got_ents;
5bd4f169 6950 bfd_vma TOCstart;
b34976b6
AM
6951 bfd_boolean ret = TRUE;
6952 bfd_boolean is_opd;
96e0dda4 6953 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 6954 bfd_boolean is_power4 = FALSE;
5bd4f169 6955
b491616a 6956 if (info->relocateable)
b34976b6 6957 return TRUE;
b491616a 6958
65f38f15 6959 /* Initialize howto table if needed. */
5bd4f169 6960 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM
6961 ppc_howto_init ();
6962
65f38f15 6963 htab = ppc_hash_table (info);
58ac9f71 6964 if ((htab->tlsld_got.offset & 1) == 0)
411e1bfb 6965 {
58ac9f71
AM
6966 if (info->shared)
6967 {
6968 outrel.r_offset = (htab->sgot->output_section->vma
6969 + htab->sgot->output_offset
6970 + htab->tlsld_got.offset);
6971 outrel.r_info = ELF64_R_INFO (0, R_PPC64_DTPMOD64);
6972 outrel.r_addend = 0;
6973
6974 loc = htab->srelgot->contents;
6975 loc += htab->srelgot->reloc_count++ * sizeof (Elf64_External_Rela);
6976 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
6977 }
6978 else
6979 bfd_put_64 (output_bfd, (bfd_vma) 1,
6980 htab->sgot->contents + htab->tlsld_got.offset);
6981
411e1bfb
AM
6982 htab->tlsld_got.offset |= 1;
6983 }
411e1bfb 6984 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 6985 TOCstart = elf_gp (output_bfd);
5bd4f169
AM
6986 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6987 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 6988 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 6989
5bd4f169
AM
6990 rel = relocs;
6991 relend = relocs + input_section->reloc_count;
6992 for (; rel < relend; rel++)
6993 {
04c9666a 6994 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM
6995 bfd_vma addend;
6996 bfd_reloc_status_type r;
6997 Elf_Internal_Sym *sym;
6998 asection *sec;
6999 struct elf_link_hash_entry *h;
721956f4 7000 struct elf_link_hash_entry *fdh;
5bd4f169 7001 const char *sym_name;
5bd4f169 7002 unsigned long r_symndx;
951fd09b 7003 char tls_mask, tls_gd, tls_type;
5bd4f169 7004 bfd_vma relocation;
b34976b6
AM
7005 bfd_boolean unresolved_reloc;
7006 bfd_boolean warned;
dc810e39 7007 long insn;
721956f4
AM
7008 struct ppc_stub_hash_entry *stub_entry;
7009 bfd_vma max_br_offset;
7010 bfd_vma from;
5bd4f169 7011
04c9666a 7012 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
5bd4f169 7013 r_symndx = ELF64_R_SYM (rel->r_info);
65f38f15
AM
7014 sym = (Elf_Internal_Sym *) 0;
7015 sec = (asection *) 0;
7016 h = (struct elf_link_hash_entry *) 0;
7017 sym_name = (const char *) 0;
b34976b6
AM
7018 unresolved_reloc = FALSE;
7019 warned = FALSE;
65f38f15 7020
5bd4f169
AM
7021 if (r_type == R_PPC64_TOC)
7022 {
7023 /* Relocation value is TOC base. Symbol is ignored. */
7024 relocation = TOCstart + TOC_BASE_OFF;
7025 }
7026 else if (r_symndx < symtab_hdr->sh_info)
7027 {
7028 /* It's a local symbol. */
7029 sym = local_syms + r_symndx;
7030 sec = local_sections[r_symndx];
411e1bfb 7031 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
f8df10f4 7032 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
1e2f5b6e
AM
7033 if (elf_section_data (sec) != NULL)
7034 {
7035 long *opd_sym_adjust;
7036
f0abc2a1 7037 opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust;
1e2f5b6e
AM
7038 if (opd_sym_adjust != NULL && sym->st_value % 24 == 0)
7039 relocation += opd_sym_adjust[sym->st_value / 24];
7040 }
5bd4f169
AM
7041 }
7042 else
7043 {
7044 /* It's a global symbol. */
7045 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7046 while (h->root.type == bfd_link_hash_indirect
7047 || h->root.type == bfd_link_hash_warning)
7048 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7049 sym_name = h->root.root.string;
65f38f15 7050 relocation = 0;
5bd4f169
AM
7051 if (h->root.type == bfd_link_hash_defined
7052 || h->root.type == bfd_link_hash_defweak)
7053 {
7054 sec = h->root.u.def.section;
65f38f15
AM
7055 if (sec->output_section == NULL)
7056 /* Set a flag that will be cleared later if we find a
7057 relocation value for this symbol. output_section
7058 is typically NULL for symbols satisfied by a shared
7059 library. */
b34976b6 7060 unresolved_reloc = TRUE;
5bd4f169
AM
7061 else
7062 relocation = (h->root.u.def.value
7063 + sec->output_section->vma
7064 + sec->output_offset);
7065 }
7066 else if (h->root.type == bfd_link_hash_undefweak)
65f38f15 7067 ;
671bae9c 7068 else if (info->shared
65f38f15
AM
7069 && !info->no_undefined
7070 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
7071 ;
5bd4f169
AM
7072 else
7073 {
7074 if (! ((*info->callbacks->undefined_symbol)
7075 (info, h->root.root.string, input_bfd, input_section,
411e1bfb
AM
7076 rel->r_offset, (!info->shared
7077 || info->no_undefined
7078 || ELF_ST_VISIBILITY (h->other)))))
b34976b6
AM
7079 return FALSE;
7080 warned = TRUE;
5bd4f169
AM
7081 }
7082 }
7083
951fd09b
AM
7084 /* TLS optimizations. Replace instruction sequences and relocs
7085 based on information we collected in tls_optimize. We edit
7086 RELOCS so that --emit-relocs will output something sensible
7087 for the final instruction stream. */
7088 tls_mask = 0;
7089 tls_gd = 0;
411e1bfb
AM
7090 if (IS_TLS_RELOC (r_type))
7091 {
7092 if (h != NULL)
e7b938ca 7093 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
411e1bfb
AM
7094 else if (local_got_ents != NULL)
7095 {
e7b938ca
AM
7096 char *lgot_masks;
7097 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
7098 tls_mask = lgot_masks[r_symndx];
411e1bfb
AM
7099 }
7100 }
7101
7102 /* Ensure reloc mapping code below stays sane. */
7103 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
7104 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
7105 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
7106 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
7107 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
7108 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
7109 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
7110 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
7111 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
7112 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
7113 abort ();
7114 switch (r_type)
7115 {
7116 default:
411e1bfb
AM
7117 break;
7118
7119 case R_PPC64_TOC16:
7120 case R_PPC64_TOC16_LO:
7121 case R_PPC64_TOC16_DS:
7122 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM
7123 {
7124 /* Check for toc tls entries. */
7125 char *toc_tls;
951fd09b 7126 int retval;
411e1bfb 7127
e7b938ca 7128 retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd);
951fd09b 7129 if (retval == 0)
411e1bfb
AM
7130 return FALSE;
7131
7132 if (toc_tls)
7133 {
951fd09b 7134 tls_mask = *toc_tls;
411e1bfb
AM
7135 if (r_type == R_PPC64_TOC16_DS
7136 || r_type == R_PPC64_TOC16_LO_DS)
7137 goto toctprel;
7138 else
951fd09b
AM
7139 {
7140 /* If we found a GD reloc pair, then we might be
7141 doing a GD->IE transition. */
7142 if (retval == 2)
7143 {
7144 tls_gd = TLS_TPRELGD;
7145 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7146 goto tls_get_addr_check;
7147 }
7148 else if (retval == 3)
7149 {
7150 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7151 goto tls_get_addr_check;
7152 }
7153 }
411e1bfb
AM
7154 }
7155 }
7156 break;
7157
7158 case R_PPC64_GOT_TPREL16_DS:
7159 case R_PPC64_GOT_TPREL16_LO_DS:
411e1bfb 7160 toctprel:
951fd09b
AM
7161 if (tls_mask != 0
7162 && (tls_mask & TLS_TPREL) == 0)
411e1bfb
AM
7163 {
7164 bfd_vma insn;
7165 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
7166 insn &= 31 << 21;
7167 insn |= 0x3c0d0000; /* addis 0,13,0 */
7168 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
7169 r_type = R_PPC64_TPREL16_HA;
7170 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7171 }
7172 break;
7173
7174 case R_PPC64_TLS:
951fd09b 7175 if (tls_mask == 0)
411e1bfb
AM
7176 {
7177 /* Check for toc tls entries. */
7178 char *toc_tls;
7179
e7b938ca 7180 if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd))
411e1bfb
AM
7181 return FALSE;
7182
7183 if (toc_tls)
951fd09b 7184 tls_mask = *toc_tls;
411e1bfb 7185 }
951fd09b
AM
7186 if (tls_mask != 0
7187 && (tls_mask & TLS_TPREL) == 0)
411e1bfb
AM
7188 {
7189 bfd_vma insn, rtra;
7190 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7191 if ((insn & ((31 << 26) | (31 << 11)))
7192 == ((31 << 26) | (13 << 11)))
7193 rtra = insn & ((1 << 26) - (1 << 16));
7194 else if ((insn & ((31 << 26) | (31 << 16)))
7195 == ((31 << 26) | (13 << 16)))
7196 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
7197 else
7198 abort ();
7199 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
7200 /* add -> addi. */
7201 insn = 14 << 26;
7202 else if ((insn & (31 << 1)) == 23 << 1
7203 && ((insn & (31 << 6)) < 14 << 6
7204 || ((insn & (31 << 6)) >= 16 << 6
7205 && (insn & (31 << 6)) < 24 << 6)))
7206 /* load and store indexed -> dform. */
7207 insn = (32 | ((insn >> 6) & 31)) << 26;
7208 else if ((insn & (31 << 1)) == 21 << 1
7209 && (insn & (0x1a << 6)) == 0)
7210 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7211 insn = (((58 | ((insn >> 6) & 4)) << 26)
7212 | ((insn >> 6) & 1));
7213 else if ((insn & (31 << 1)) == 21 << 1
7214 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
7215 /* lwax -> lwa. */
7216 insn = (58 << 26) | 2;
7217 else
7218 abort ();
7219 insn |= rtra;
7220 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7221 r_type = R_PPC64_TPREL16_LO;
7222 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7223 /* Was PPC64_TLS which sits on insn boundary, now
7224 PPC64_TPREL16_LO which is at insn+2. */
7225 rel->r_offset += 2;
7226 }
7227 break;
7228
411e1bfb
AM
7229 case R_PPC64_GOT_TLSGD16_HI:
7230 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM
7231 tls_gd = TLS_TPRELGD;
7232 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7233 goto tls_gdld_hi;
7234 break;
7235
411e1bfb
AM
7236 case R_PPC64_GOT_TLSLD16_HI:
7237 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7238 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 7239 {
951fd09b
AM
7240 tls_gdld_hi:
7241 if ((tls_mask & tls_gd) != 0)
7242 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7243 + R_PPC64_GOT_TPREL16_DS);
7244 else
411e1bfb 7245 {
951fd09b
AM
7246 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7247 rel->r_offset -= 2;
7248 r_type = R_PPC64_NONE;
411e1bfb 7249 }
951fd09b 7250 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
7251 }
7252 break;
7253
951fd09b
AM
7254 case R_PPC64_GOT_TLSGD16:
7255 case R_PPC64_GOT_TLSGD16_LO:
7256 tls_gd = TLS_TPRELGD;
7257 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7258 goto tls_get_addr_check;
7259 break;
411e1bfb 7260
951fd09b
AM
7261 case R_PPC64_GOT_TLSLD16:
7262 case R_PPC64_GOT_TLSLD16_LO:
7263 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7264 {
7265 tls_get_addr_check:
7266 if (rel + 1 < relend)
411e1bfb 7267 {
951fd09b
AM
7268 enum elf_ppc64_reloc_type r_type2;
7269 unsigned long r_symndx2;
7270 struct elf_link_hash_entry *h2;
7271 bfd_vma insn1, insn2, insn3;
7272 bfd_vma offset;
7273
7274 /* The next instruction should be a call to
7275 __tls_get_addr. Peek at the reloc to be sure. */
7276 r_type2
7277 = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel[1].r_info);
7278 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7279 if (r_symndx2 < symtab_hdr->sh_info
7280 || (r_type2 != R_PPC64_REL14
7281 && r_type2 != R_PPC64_REL14_BRTAKEN
7282 && r_type2 != R_PPC64_REL14_BRNTAKEN
7283 && r_type2 != R_PPC64_REL24))
7284 break;
7285
7286 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7287 while (h2->root.type == bfd_link_hash_indirect
7288 || h2->root.type == bfd_link_hash_warning)
7289 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
7290 if (h2 == NULL || h2 != htab->tls_get_addr)
7291 break;
7292
7293 /* OK, it checks out. Replace the call. */
7294 offset = rel[1].r_offset;
7295 insn1 = bfd_get_32 (output_bfd,
7296 contents + rel->r_offset - 2);
7297 insn3 = bfd_get_32 (output_bfd,
7298 contents + offset + 4);
7299 if ((tls_mask & tls_gd) != 0)
411e1bfb 7300 {
951fd09b
AM
7301 /* IE */
7302 insn1 &= (1 << 26) - (1 << 2);
7303 insn1 |= 58 << 26; /* ld */
7304 insn2 = 0x7c636a14; /* add 3,3,13 */
7305 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
7306 if ((tls_mask & TLS_EXPLICIT) == 0)
7307 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7308 + R_PPC64_GOT_TPREL16_DS);
7309 else
7310 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
7311 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
7312 }
7313 else
951fd09b
AM
7314 {
7315 /* LE */
7316 insn1 = 0x3c6d0000; /* addis 3,13,0 */
7317 insn2 = 0x38630000; /* addi 3,3,0 */
7318 if (tls_gd == 0)
7319 {
7320 /* Was an LD reloc. */
7321 r_symndx = 0;
7322 rel->r_addend = htab->tls_sec->vma + DTP_OFFSET;
7323 rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET;
7324 }
7325 r_type = R_PPC64_TPREL16_HA;
7326 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7327 rel[1].r_info = ELF64_R_INFO (r_symndx,
7328 R_PPC64_TPREL16_LO);
7329 rel[1].r_offset += 2;
7330 }
7331 if (insn3 == NOP
7332 || insn3 == CROR_151515 || insn3 == CROR_313131)
7333 {
7334 insn3 = insn2;
7335 insn2 = NOP;
7336 rel[1].r_offset += 4;
7337 }
7338 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
7339 bfd_put_32 (output_bfd, insn2, contents + offset);
7340 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
7341 if (tls_gd == 0)
7342 {
7343 /* We changed the symbol on an LD reloc. Start over
7344 in order to get h, sym, sec etc. right. */
7345 rel--;
7346 continue;
7347 }
411e1bfb 7348 }
411e1bfb 7349 }
411e1bfb
AM
7350 break;
7351
7352 case R_PPC64_DTPMOD64:
951fd09b
AM
7353 if (rel + 1 < relend
7354 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
7355 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 7356 {
951fd09b
AM
7357 if ((tls_mask & TLS_GD) == 0)
7358 {
7359 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
7360 if ((tls_mask & TLS_TPRELGD) != 0)
7361 r_type = R_PPC64_TPREL64;
7362 else
7363 {
7364 bfd_put_64 (output_bfd, (bfd_vma) 1,
7365 contents + rel->r_offset);
7366 r_type = R_PPC64_NONE;
7367 }
7368 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7369 }
7370 }
7371 else
7372 {
7373 if ((tls_mask & TLS_LD) == 0)
411e1bfb
AM
7374 {
7375 bfd_put_64 (output_bfd, (bfd_vma) 1,
7376 contents + rel->r_offset);
7377 r_type = R_PPC64_NONE;
951fd09b 7378 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 7379 }
411e1bfb
AM
7380 }
7381 break;
7382
7383 case R_PPC64_TPREL64:
951fd09b 7384 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM
7385 {
7386 r_type = R_PPC64_NONE;
7387 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7388 }
7389 break;
7390 }
7391
7392 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 7393 insn = 0;
65f38f15 7394 switch (r_type)
5bd4f169
AM
7395 {
7396 default:
65f38f15 7397 break;
5bd4f169 7398
65f38f15
AM
7399 /* Branch taken prediction relocations. */
7400 case R_PPC64_ADDR14_BRTAKEN:
7401 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH
7402 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7403 /* Fall thru. */
65f38f15 7404
86c76c7b 7405 /* Branch not taken prediction relocations. */
65f38f15
AM
7406 case R_PPC64_ADDR14_BRNTAKEN:
7407 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM
7408 insn |= bfd_get_32 (output_bfd,
7409 contents + rel->r_offset) & ~(0x01 << 21);
96e0dda4
AM
7410 if (is_power4)
7411 {
7412 /* Set 'a' bit. This is 0b00010 in BO field for branch
7413 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7414 for branch on CTR insns (BO == 1a00t or 1a01t). */
7415 if ((insn & (0x14 << 21)) == (0x04 << 21))
7416 insn |= 0x02 << 21;
7417 else if ((insn & (0x14 << 21)) == (0x10 << 21))
7418 insn |= 0x08 << 21;
7419 else
7420 break;
7421 }
65f38f15 7422 else
96e0dda4 7423 {
411e1bfb 7424 from = (rel->r_offset
805fc799
AM
7425 + input_section->output_offset
7426 + input_section->output_section->vma);
7427
96e0dda4 7428 /* Invert 'y' bit if not the default. */
411e1bfb 7429 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
96e0dda4
AM
7430 insn ^= 0x01 << 21;
7431 }
86c76c7b 7432
411e1bfb 7433 bfd_put_32 (output_bfd, (bfd_vma) insn, contents + rel->r_offset);
65f38f15 7434 break;
5bd4f169 7435
65f38f15 7436 case R_PPC64_REL24:
721956f4
AM
7437 /* A REL24 branching to a linkage function is followed by a
7438 nop. We replace the nop with a ld in order to restore
7439 the TOC base pointer. Only calls to shared objects need
7440 to alter the TOC base. These are recognized by their
7441 need for a PLT entry. */
5bd4f169 7442 if (h != NULL
721956f4 7443 && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL
411e1bfb 7444 && fdh->plt.plist != NULL
721956f4
AM
7445 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
7446 rel, htab)) != NULL)
41bd81ab 7447 {
b34976b6 7448 bfd_boolean can_plt_call = 0;
721956f4 7449
411e1bfb 7450 if (rel->r_offset + 8 <= input_section->_cooked_size)
41bd81ab 7451 {
411e1bfb 7452 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
721956f4
AM
7453 if (insn == NOP
7454 || insn == CROR_151515 || insn == CROR_313131)
41bd81ab 7455 {
721956f4 7456 bfd_put_32 (input_bfd, (bfd_vma) LD_R2_40R1,
411e1bfb 7457 contents + rel->r_offset + 4);
721956f4 7458 can_plt_call = 1;
41bd81ab 7459 }
5bd4f169 7460 }
721956f4
AM
7461
7462 if (!can_plt_call)
7463 {
7464 /* If this is a plain branch rather than a branch
7465 and link, don't require a nop. */
411e1bfb 7466 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
721956f4
AM
7467 if ((insn & 1) == 0)
7468 can_plt_call = 1;
7469 }
7470
7471 if (can_plt_call)
7472 {
7473 relocation = (stub_entry->stub_offset
7474 + stub_entry->stub_sec->output_offset
7475 + stub_entry->stub_sec->output_section->vma);
b34976b6 7476 unresolved_reloc = FALSE;
721956f4 7477 }
5bd4f169 7478 }
e86ce104
AM
7479
7480 if (h != NULL
7481 && h->root.type == bfd_link_hash_undefweak
721956f4 7482 && relocation == 0
411e1bfb 7483 && rel->r_addend == 0)
e86ce104 7484 {
721956f4
AM
7485 /* Tweak calls to undefined weak functions to point at a
7486 blr. We can thus call a weak function without first
7487 checking whether the function is defined. We have a
7488 blr at the end of .sfpr. */
805fc799 7489 BFD_ASSERT (htab->sfpr->_raw_size != 0);
721956f4
AM
7490 relocation = (htab->sfpr->_raw_size - 4
7491 + htab->sfpr->output_offset
7492 + htab->sfpr->output_section->vma);
411e1bfb 7493 from = (rel->r_offset
721956f4
AM
7494 + input_section->output_offset
7495 + input_section->output_section->vma);
805fc799 7496
721956f4
AM
7497 /* But let's not be silly about it. If the blr isn't in
7498 reach, just go to the next instruction. */
805fc799
AM
7499 if (relocation - from + (1 << 25) >= (1 << 26)
7500 || htab->sfpr->_raw_size == 0)
721956f4 7501 relocation = from + 4;
e86ce104 7502 }
65f38f15
AM
7503 break;
7504 }
5bd4f169 7505
65f38f15 7506 /* Set `addend'. */
411e1bfb
AM
7507 tls_type = 0;
7508 addend = rel->r_addend;
65f38f15
AM
7509 switch (r_type)
7510 {
7511 default:
7512 (*_bfd_error_handler)
7513 (_("%s: unknown relocation type %d for symbol %s"),
7514 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
5bd4f169 7515
65f38f15 7516 bfd_set_error (bfd_error_bad_value);
b34976b6 7517 ret = FALSE;
65f38f15 7518 continue;
5bd4f169 7519
65f38f15 7520 case R_PPC64_NONE:
411e1bfb 7521 case R_PPC64_TLS:
04c9666a
AM
7522 case R_PPC64_GNU_VTINHERIT:
7523 case R_PPC64_GNU_VTENTRY:
65f38f15 7524 continue;
5bd4f169
AM
7525
7526 /* GOT16 relocations. Like an ADDR16 using the symbol's
7527 address in the GOT as relocation value instead of the
411e1bfb 7528 symbol's value itself. Also, create a GOT entry for the
5bd4f169 7529 symbol and put the symbol value there. */
411e1bfb
AM
7530 case R_PPC64_GOT_TLSGD16:
7531 case R_PPC64_GOT_TLSGD16_LO:
7532 case R_PPC64_GOT_TLSGD16_HI:
7533 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 7534 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
7535 goto dogot;
7536
7537 case R_PPC64_GOT_TLSLD16:
7538 case R_PPC64_GOT_TLSLD16_LO:
7539 case R_PPC64_GOT_TLSLD16_HI:
7540 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7541 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
7542 goto dogot;
7543
7544 case R_PPC64_GOT_TPREL16_DS:
7545 case R_PPC64_GOT_TPREL16_LO_DS:
7546 case R_PPC64_GOT_TPREL16_HI:
7547 case R_PPC64_GOT_TPREL16_HA:
7548 tls_type = TLS_TLS | TLS_TPREL;
7549 goto dogot;
7550
7551 case R_PPC64_GOT_DTPREL16_DS:
7552 case R_PPC64_GOT_DTPREL16_LO_DS:
7553 case R_PPC64_GOT_DTPREL16_HI:
7554 case R_PPC64_GOT_DTPREL16_HA:
7555 tls_type = TLS_TLS | TLS_DTPREL;
7556 goto dogot;
7557
65f38f15
AM
7558 case R_PPC64_GOT16:
7559 case R_PPC64_GOT16_LO:
7560 case R_PPC64_GOT16_HI:
7561 case R_PPC64_GOT16_HA:
7562 case R_PPC64_GOT16_DS:
7563 case R_PPC64_GOT16_LO_DS:
411e1bfb 7564 dogot:
5bd4f169
AM
7565 {
7566 /* Relocation is to the entry for this symbol in the global
7567 offset table. */
411e1bfb 7568 struct got_entry *ent;
5bd4f169 7569 bfd_vma off;
411e1bfb 7570 unsigned long indx;
65f38f15
AM
7571
7572 if (htab->sgot == NULL)
7573 abort ();
5bd4f169
AM
7574
7575 if (h != NULL)
411e1bfb
AM
7576 ent = h->got.glist;
7577 else
5bd4f169 7578 {
411e1bfb
AM
7579 if (local_got_ents == NULL)
7580 abort ();
7581 ent = local_got_ents[r_symndx];
7582 }
7583
7584 for (; ent != NULL; ent = ent->next)
7585 if (ent->addend == rel->r_addend
7586 && ent->tls_type == tls_type)
7587 break;
7588 if (ent == NULL)
7589 abort ();
5bd4f169 7590
411e1bfb
AM
7591 off = ent->got.offset;
7592 indx = 0;
7593 if (h != NULL)
7594 {
7595 bfd_boolean dyn = htab->elf.dynamic_sections_created;
65f38f15 7596 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)
5bd4f169 7597 || (info->shared
65f38f15
AM
7598 && (info->symbolic
7599 || h->dynindx == -1
7600 || (h->elf_link_hash_flags
7601 & ELF_LINK_FORCED_LOCAL))
5bd4f169
AM
7602 && (h->elf_link_hash_flags
7603 & ELF_LINK_HASH_DEF_REGULAR)))
411e1bfb
AM
7604 /* This is actually a static link, or it is a
7605 -Bsymbolic link and the symbol is defined
7606 locally, or the symbol was forced to be local
7607 because of a version file. */
7608 ;
7609 else
5bd4f169 7610 {
411e1bfb
AM
7611 indx = h->dynindx;
7612 unresolved_reloc = FALSE;
5bd4f169
AM
7613 }
7614 }
411e1bfb
AM
7615
7616 /* The offset must always be a multiple of 8. We use the
7617 least significant bit to record whether we have already
7618 processed this entry. */
7619 if ((off & 1) != 0)
7620 off &= ~1;
5bd4f169
AM
7621 else
7622 {
411e1bfb
AM
7623 /* Generate relocs for the dynamic linker, except in
7624 the case of TLSLD where we'll use one entry per
7625 module. */
7626 if ((info->shared || indx != 0)
951fd09b 7627 && tls_type != (TLS_TLS | TLS_LD))
5bd4f169 7628 {
411e1bfb
AM
7629 outrel.r_offset = (htab->sgot->output_section->vma
7630 + htab->sgot->output_offset
7631 + off);
951fd09b 7632 if (tls_type == (TLS_TLS | TLS_GD))
5bd4f169 7633 {
411e1bfb
AM
7634 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
7635 outrel.r_addend = 0;
947216bf
AM
7636 loc = htab->srelgot->contents;
7637 loc += (htab->srelgot->reloc_count++
7638 * sizeof (Elf64_External_Rela));
65f38f15 7639 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
411e1bfb
AM
7640 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
7641 outrel.r_offset += 8;
7642 }
951fd09b 7643 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 7644 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 7645 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM
7646 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
7647 else if (indx == 0)
7648 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
7649 else
7650 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
951fd09b 7651 outrel.r_addend = rel->r_addend;
411e1bfb
AM
7652 if (indx == 0)
7653 outrel.r_addend += relocation;
7654 loc = htab->srelgot->contents;
7655 loc += (htab->srelgot->reloc_count++
7656 * sizeof (Elf64_External_Rela));
7657 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
7658 }
7659
7660 /* Init the .got section contents if we're not
7661 emitting a reloc. */
58ac9f71
AM
7662 if (!(info->shared || indx != 0)
7663 && tls_type != (TLS_TLS | TLS_LD))
411e1bfb 7664 {
411e1bfb 7665 relocation += ent->addend;
e7b938ca 7666 if (tls_type != 0)
411e1bfb
AM
7667 {
7668 relocation -= htab->tls_sec->vma + DTP_OFFSET;
7669 if ((tls_type & TLS_TPREL) != 0)
7670 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169
AM
7671 }
7672
58ac9f71 7673 if ((tls_type & TLS_GD) != 0)
411e1bfb 7674 {
411e1bfb
AM
7675 bfd_put_64 (output_bfd, relocation,
7676 htab->sgot->contents + off + 8);
7677 relocation = 1;
7678 }
7679 bfd_put_64 (output_bfd, relocation,
7680 htab->sgot->contents + off);
5bd4f169 7681 }
411e1bfb 7682 ent->got.offset |= 1;
5bd4f169
AM
7683 }
7684
65f38f15
AM
7685 if (off >= (bfd_vma) -2)
7686 abort ();
7687
7688 relocation = htab->sgot->output_offset + off;
7689
5bd4f169 7690 /* TOC base (r2) is TOC start plus 0x8000. */
411e1bfb 7691 addend = - TOC_BASE_OFF;
5bd4f169 7692 }
65f38f15
AM
7693 break;
7694
7695 case R_PPC64_PLT16_HA:
7696 case R_PPC64_PLT16_HI:
7697 case R_PPC64_PLT16_LO:
7698 case R_PPC64_PLT32:
7699 case R_PPC64_PLT64:
7700 /* Relocation is to the entry for this symbol in the
7701 procedure linkage table. */
7702
7703 /* Resolve a PLT reloc against a local symbol directly,
7704 without using the procedure linkage table. */
7705 if (h == NULL)
7706 break;
7707
411e1bfb
AM
7708 /* It's possible that we didn't make a PLT entry for this
7709 symbol. This happens when statically linking PIC code,
7710 or when using -Bsymbolic. Go find a match if there is a
7711 PLT entry. */
7712 if (htab->splt != NULL)
65f38f15 7713 {
411e1bfb
AM
7714 struct plt_entry *ent;
7715 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
7716 if (ent->addend == rel->r_addend
7717 && ent->plt.offset != (bfd_vma) -1)
7718 {
7719 relocation = (htab->splt->output_section->vma
7720 + htab->splt->output_offset
7721 + ent->plt.offset);
7722 unresolved_reloc = FALSE;
7723 }
65f38f15 7724 }
65f38f15 7725 break;
5bd4f169
AM
7726
7727 /* TOC16 relocs. We want the offset relative to the TOC base,
7728 which is the address of the start of the TOC plus 0x8000.
7729 The TOC consists of sections .got, .toc, .tocbss, and .plt,
7730 in this order. */
65f38f15
AM
7731 case R_PPC64_TOC16:
7732 case R_PPC64_TOC16_LO:
7733 case R_PPC64_TOC16_HI:
7734 case R_PPC64_TOC16_DS:
7735 case R_PPC64_TOC16_LO_DS:
7736 case R_PPC64_TOC16_HA:
5bd4f169 7737 addend -= TOCstart + TOC_BASE_OFF;
5bd4f169
AM
7738 break;
7739
7740 /* Relocate against the beginning of the section. */
65f38f15
AM
7741 case R_PPC64_SECTOFF:
7742 case R_PPC64_SECTOFF_LO:
7743 case R_PPC64_SECTOFF_HI:
7744 case R_PPC64_SECTOFF_DS:
7745 case R_PPC64_SECTOFF_LO_DS:
7746 case R_PPC64_SECTOFF_HA:
7747 if (sec != (asection *) 0)
7748 addend -= sec->output_section->vma;
5bd4f169
AM
7749 break;
7750
721956f4
AM
7751 case R_PPC64_REL14:
7752 case R_PPC64_REL14_BRNTAKEN:
7753 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM
7754 case R_PPC64_REL24:
7755 break;
7756
411e1bfb
AM
7757 case R_PPC64_TPREL16:
7758 case R_PPC64_TPREL16_LO:
7759 case R_PPC64_TPREL16_HI:
7760 case R_PPC64_TPREL16_HA:
7761 case R_PPC64_TPREL16_DS:
7762 case R_PPC64_TPREL16_LO_DS:
7763 case R_PPC64_TPREL16_HIGHER:
7764 case R_PPC64_TPREL16_HIGHERA:
7765 case R_PPC64_TPREL16_HIGHEST:
7766 case R_PPC64_TPREL16_HIGHESTA:
7767 addend -= htab->tls_sec->vma + TP_OFFSET;
7768 if (info->shared)
7769 /* The TPREL16 relocs shouldn't really be used in shared
7770 libs as they will result in DT_TEXTREL being set, but
7771 support them anyway. */
7772 goto dodyn;
7773 break;
7774
7775 case R_PPC64_DTPREL16:
7776 case R_PPC64_DTPREL16_LO:
7777 case R_PPC64_DTPREL16_HI:
7778 case R_PPC64_DTPREL16_HA:
7779 case R_PPC64_DTPREL16_DS:
7780 case R_PPC64_DTPREL16_LO_DS:
7781 case R_PPC64_DTPREL16_HIGHER:
7782 case R_PPC64_DTPREL16_HIGHERA:
7783 case R_PPC64_DTPREL16_HIGHEST:
7784 case R_PPC64_DTPREL16_HIGHESTA:
7785 addend -= htab->tls_sec->vma + DTP_OFFSET;
7786 break;
7787
7788 case R_PPC64_TPREL64:
7789 addend -= htab->tls_sec->vma + TP_OFFSET;
7790 goto dodyn;
7791
7792 case R_PPC64_DTPREL64:
7793 addend -= htab->tls_sec->vma + DTP_OFFSET;
7794 /* Fall thru */
7795
65f38f15
AM
7796 /* Relocations that may need to be propagated if this is a
7797 dynamic object. */
411e1bfb 7798 case R_PPC64_DTPMOD64:
04c9666a 7799 case R_PPC64_REL30:
65f38f15
AM
7800 case R_PPC64_REL32:
7801 case R_PPC64_REL64:
7802 case R_PPC64_ADDR14:
7803 case R_PPC64_ADDR14_BRNTAKEN:
7804 case R_PPC64_ADDR14_BRTAKEN:
7805 case R_PPC64_ADDR16:
7806 case R_PPC64_ADDR16_DS:
7807 case R_PPC64_ADDR16_HA:
7808 case R_PPC64_ADDR16_HI:
7809 case R_PPC64_ADDR16_HIGHER:
7810 case R_PPC64_ADDR16_HIGHERA:
7811 case R_PPC64_ADDR16_HIGHEST:
7812 case R_PPC64_ADDR16_HIGHESTA:
7813 case R_PPC64_ADDR16_LO:
7814 case R_PPC64_ADDR16_LO_DS:
7815 case R_PPC64_ADDR24:
65f38f15
AM
7816 case R_PPC64_ADDR32:
7817 case R_PPC64_ADDR64:
7818 case R_PPC64_UADDR16:
7819 case R_PPC64_UADDR32:
7820 case R_PPC64_UADDR64:
ec338859
AM
7821 /* r_symndx will be zero only for relocs against symbols
7822 from removed linkonce sections, or sections discarded by
7823 a linker script. */
411e1bfb 7824 dodyn:
5d1634d7
AM
7825 if (r_symndx == 0)
7826 break;
7827 /* Fall thru. */
7828
7829 case R_PPC64_TOC:
7830 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
7831 break;
7832
41bd81ab
AM
7833 if (NO_OPD_RELOCS && is_opd)
7834 break;
7835
65f38f15 7836 if ((info->shared
411e1bfb 7837 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM
7838 || (h != NULL
7839 && h->dynindx != -1
7840 && (! info->symbolic
7841 || (h->elf_link_hash_flags
7842 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
7843 || (!info->shared
65f38f15
AM
7844 && h != NULL
7845 && h->dynindx != -1
7846 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM
7847 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
7848 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
65f38f15
AM
7849 {
7850 Elf_Internal_Rela outrel;
b34976b6 7851 bfd_boolean skip, relocate;
65f38f15 7852 asection *sreloc;
947216bf 7853 bfd_byte *loc;
65f38f15
AM
7854
7855 /* When generating a dynamic object, these relocations
7856 are copied into the output file to be resolved at run
7857 time. */
7858
b34976b6
AM
7859 skip = FALSE;
7860 relocate = FALSE;
65f38f15 7861
c629eae0
JJ
7862 outrel.r_offset =
7863 _bfd_elf_section_offset (output_bfd, info, input_section,
7864 rel->r_offset);
7865 if (outrel.r_offset == (bfd_vma) -1)
b34976b6 7866 skip = TRUE;
0bb2d96a 7867 else if (outrel.r_offset == (bfd_vma) -2)
b34976b6 7868 skip = TRUE, relocate = TRUE;
65f38f15
AM
7869 outrel.r_offset += (input_section->output_section->vma
7870 + input_section->output_offset);
411e1bfb 7871 outrel.r_addend = rel->r_addend;
65f38f15
AM
7872
7873 if (skip)
0bb2d96a 7874 memset (&outrel, 0, sizeof outrel);
65f38f15
AM
7875 else if (h != NULL
7876 && h->dynindx != -1
41bd81ab 7877 && !is_opd
411e1bfb 7878 && (!MUST_BE_DYN_RELOC (r_type)
65f38f15
AM
7879 || !info->shared
7880 || !info->symbolic
7881 || (h->elf_link_hash_flags
7882 & ELF_LINK_HASH_DEF_REGULAR) == 0))
0bb2d96a 7883 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
65f38f15
AM
7884 else
7885 {
41bd81ab
AM
7886 /* This symbol is local, or marked to become local,
7887 or this is an opd section reloc which must point
7888 at a local function. */
65f38f15 7889 outrel.r_addend += relocation;
411e1bfb 7890 /* ??? why? */
b34976b6 7891 relocate = TRUE;
e86ce104 7892 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 7893 {
3fad3c7c 7894 if (is_opd && h != NULL)
afbe61cf
AM
7895 {
7896 /* Lie about opd entries. This case occurs
7897 when building shared libraries and we
7898 reference a function in another shared
3fad3c7c
AM
7899 lib. The same thing happens for a weak
7900 definition in an application that's
7901 overridden by a strong definition in a
7902 shared lib. (I believe this is a generic
7903 bug in binutils handling of weak syms.)
7904 In these cases we won't use the opd
1e2f5b6e 7905 entry in this lib. */
b34976b6 7906 unresolved_reloc = FALSE;
afbe61cf 7907 }
65f38f15
AM
7908 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
7909 }
7910 else
7911 {
7912 long indx = 0;
7913
41bd81ab 7914 if (bfd_is_abs_section (sec))
65f38f15
AM
7915 ;
7916 else if (sec == NULL || sec->owner == NULL)
7917 {
7918 bfd_set_error (bfd_error_bad_value);
b34976b6 7919 return FALSE;
65f38f15
AM
7920 }
7921 else
7922 {
7923 asection *osec;
7924
7925 osec = sec->output_section;
7926 indx = elf_section_data (osec)->dynindx;
7927
7928 /* We are turning this relocation into one
7929 against a section symbol, so subtract out
7930 the output section's address but not the
7931 offset of the input section in the output
7932 section. */
7933 outrel.r_addend -= osec->vma;
7934 }
7935
7936 outrel.r_info = ELF64_R_INFO (indx, r_type);
7937 }
7938 }
7939
7940 sreloc = elf_section_data (input_section)->sreloc;
7941 if (sreloc == NULL)
7942 abort ();
7943
947216bf
AM
7944 loc = sreloc->contents;
7945 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM
7946 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
7947
7948 /* If this reloc is against an external symbol, it will
7949 be computed at runtime, so there's no need to do
7950 anything now. */
7951 if (! relocate)
7952 continue;
7953 }
5bd4f169
AM
7954 break;
7955
65f38f15
AM
7956 case R_PPC64_COPY:
7957 case R_PPC64_GLOB_DAT:
7958 case R_PPC64_JMP_SLOT:
7959 case R_PPC64_RELATIVE:
7960 /* We shouldn't ever see these dynamic relocs in relocatable
7961 files. */
ae9a127f 7962 /* Fall through. */
65f38f15
AM
7963
7964 case R_PPC64_PLTGOT16:
7965 case R_PPC64_PLTGOT16_DS:
7966 case R_PPC64_PLTGOT16_HA:
7967 case R_PPC64_PLTGOT16_HI:
7968 case R_PPC64_PLTGOT16_LO:
7969 case R_PPC64_PLTGOT16_LO_DS:
7970 case R_PPC64_PLTREL32:
7971 case R_PPC64_PLTREL64:
7972 /* These ones haven't been implemented yet. */
7973
7974 (*_bfd_error_handler)
7975 (_("%s: Relocation %s is not supported for symbol %s."),
7976 bfd_archive_filename (input_bfd),
7977 ppc64_elf_howto_table[(int) r_type]->name, sym_name);
5bd4f169
AM
7978
7979 bfd_set_error (bfd_error_invalid_operation);
b34976b6 7980 ret = FALSE;
5bd4f169 7981 continue;
65f38f15 7982 }
5bd4f169 7983
65f38f15
AM
7984 /* Do any further special processing. */
7985 switch (r_type)
7986 {
7987 default:
7988 break;
7989
7990 case R_PPC64_ADDR16_HA:
7991 case R_PPC64_ADDR16_HIGHERA:
7992 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM
7993 case R_PPC64_GOT16_HA:
7994 case R_PPC64_PLTGOT16_HA:
65f38f15
AM
7995 case R_PPC64_PLT16_HA:
7996 case R_PPC64_TOC16_HA:
7997 case R_PPC64_SECTOFF_HA:
411e1bfb
AM
7998 case R_PPC64_TPREL16_HA:
7999 case R_PPC64_DTPREL16_HA:
8000 case R_PPC64_GOT_TLSGD16_HA:
8001 case R_PPC64_GOT_TLSLD16_HA:
8002 case R_PPC64_GOT_TPREL16_HA:
8003 case R_PPC64_GOT_DTPREL16_HA:
8004 case R_PPC64_TPREL16_HIGHER:
8005 case R_PPC64_TPREL16_HIGHERA:
8006 case R_PPC64_TPREL16_HIGHEST:
8007 case R_PPC64_TPREL16_HIGHESTA:
8008 case R_PPC64_DTPREL16_HIGHER:
8009 case R_PPC64_DTPREL16_HIGHERA:
8010 case R_PPC64_DTPREL16_HIGHEST:
8011 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM
8012 /* It's just possible that this symbol is a weak symbol
8013 that's not actually defined anywhere. In that case,
8014 'sec' would be NULL, and we should leave the symbol
8015 alone (it will be set to zero elsewhere in the link). */
8016 if (sec != NULL)
8017 /* Add 0x10000 if sign bit in 0:15 is set. */
8018 addend += ((relocation + addend) & 0x8000) << 1;
8019 break;
8020
8021 case R_PPC64_ADDR16_DS:
8022 case R_PPC64_ADDR16_LO_DS:
8023 case R_PPC64_GOT16_DS:
8024 case R_PPC64_GOT16_LO_DS:
8025 case R_PPC64_PLT16_LO_DS:
8026 case R_PPC64_SECTOFF_DS:
8027 case R_PPC64_SECTOFF_LO_DS:
8028 case R_PPC64_TOC16_DS:
8029 case R_PPC64_TOC16_LO_DS:
8030 case R_PPC64_PLTGOT16_DS:
8031 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM
8032 case R_PPC64_GOT_TPREL16_DS:
8033 case R_PPC64_GOT_TPREL16_LO_DS:
8034 case R_PPC64_GOT_DTPREL16_DS:
8035 case R_PPC64_GOT_DTPREL16_LO_DS:
8036 case R_PPC64_TPREL16_DS:
8037 case R_PPC64_TPREL16_LO_DS:
8038 case R_PPC64_DTPREL16_DS:
8039 case R_PPC64_DTPREL16_LO_DS:
65f38f15
AM
8040 if (((relocation + addend) & 3) != 0)
8041 {
8042 (*_bfd_error_handler)
8043 (_("%s: error: relocation %s not a multiple of 4"),
8044 bfd_archive_filename (input_bfd),
8045 ppc64_elf_howto_table[(int) r_type]->name);
8046 bfd_set_error (bfd_error_bad_value);
b34976b6 8047 ret = FALSE;
65f38f15
AM
8048 continue;
8049 }
8050 break;
721956f4
AM
8051
8052 case R_PPC64_REL14:
8053 case R_PPC64_REL14_BRNTAKEN:
8054 case R_PPC64_REL14_BRTAKEN:
8055 max_br_offset = 1 << 15;
8056 goto branch_check;
8057
8058 case R_PPC64_REL24:
8059 max_br_offset = 1 << 25;
8060
8061 branch_check:
8062 /* If the branch is out of reach, then redirect the
8063 call to the local stub for this function. */
411e1bfb 8064 from = (rel->r_offset
721956f4
AM
8065 + input_section->output_offset
8066 + input_section->output_section->vma);
8067 if (relocation + addend - from + max_br_offset >= 2 * max_br_offset
8068 && (stub_entry = ppc_get_stub_entry (input_section, sec, h,
8069 rel, htab)) != NULL)
8070 {
8071 /* Munge up the value and addend so that we call the stub
8072 rather than the procedure directly. */
8073 relocation = (stub_entry->stub_offset
8074 + stub_entry->stub_sec->output_offset
8075 + stub_entry->stub_sec->output_section->vma);
8076 addend = 0;
8077 }
8078 break;
5bd4f169
AM
8079 }
8080
239e1f3a
AM
8081 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8082 because such sections are not SEC_ALLOC and thus ld.so will
8083 not process them. */
65f38f15 8084 if (unresolved_reloc
239e1f3a 8085 && !((input_section->flags & SEC_DEBUGGING) != 0
65f38f15 8086 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
9c07fe7c
AM
8087 {
8088 (*_bfd_error_handler)
8089 (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
8090 bfd_archive_filename (input_bfd),
8091 bfd_get_section_name (input_bfd, input_section),
8092 (long) rel->r_offset,
8093 h->root.root.string);
b34976b6 8094 ret = FALSE;
9c07fe7c 8095 }
5bd4f169 8096
65f38f15 8097 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM
8098 input_bfd,
8099 input_section,
8100 contents,
411e1bfb 8101 rel->r_offset,
5bd4f169
AM
8102 relocation,
8103 addend);
8104
ef60b7ff 8105 if (r != bfd_reloc_ok)
5bd4f169 8106 {
cd27b276
AM
8107 if (sym_name == NULL)
8108 sym_name = "(null)";
8109 if (r == bfd_reloc_overflow)
5bd4f169 8110 {
cd27b276
AM
8111 if (warned)
8112 continue;
8113 if (h != NULL
8114 && h->root.type == bfd_link_hash_undefweak
65f38f15 8115 && ppc64_elf_howto_table[(int) r_type]->pc_relative)
5bd4f169
AM
8116 {
8117 /* Assume this is a call protected by other code that
8118 detects the symbol is undefined. If this is the case,
8119 we can safely ignore the overflow. If not, the
8120 program is hosed anyway, and a little warning isn't
8121 going to help. */
8122
8123 continue;
8124 }
8125
ef60b7ff 8126 if (!((*info->callbacks->reloc_overflow)
cd27b276 8127 (info, sym_name, ppc64_elf_howto_table[(int) r_type]->name,
411e1bfb 8128 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 8129 return FALSE;
ef60b7ff
AM
8130 }
8131 else
8132 {
8133 (*_bfd_error_handler)
8134 (_("%s(%s+0x%lx): reloc against `%s': error %d"),
8135 bfd_archive_filename (input_bfd),
8136 bfd_get_section_name (input_bfd, input_section),
cd27b276 8137 (long) rel->r_offset, sym_name, (int) r);
b34976b6 8138 ret = FALSE;
ef60b7ff 8139 }
5bd4f169 8140 }
5bd4f169
AM
8141 }
8142
5bd4f169
AM
8143 return ret;
8144}
8145
8146/* Finish up dynamic symbol handling. We set the contents of various
8147 dynamic sections here. */
8148
b34976b6 8149static bfd_boolean
5bd4f169
AM
8150ppc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
8151 bfd *output_bfd;
8152 struct bfd_link_info *info;
8153 struct elf_link_hash_entry *h;
8154 Elf_Internal_Sym *sym;
8155{
65f38f15 8156 struct ppc_link_hash_table *htab;
5bd4f169
AM
8157 bfd *dynobj;
8158
65f38f15
AM
8159 htab = ppc_hash_table (info);
8160 dynobj = htab->elf.dynobj;
5bd4f169 8161
411e1bfb 8162 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
5bd4f169 8163 {
411e1bfb 8164 struct plt_entry *ent;
65f38f15 8165 Elf_Internal_Rela rela;
947216bf 8166 bfd_byte *loc;
5bd4f169 8167
411e1bfb
AM
8168 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8169 if (ent->plt.offset != (bfd_vma) -1)
8170 {
8171 /* This symbol has an entry in the procedure linkage
8172 table. Set it up. */
5bd4f169 8173
411e1bfb
AM
8174 if (htab->splt == NULL
8175 || htab->srelplt == NULL
8176 || htab->sglink == NULL)
8177 abort ();
5bd4f169 8178
411e1bfb
AM
8179 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8180 fill in the PLT entry. */
411e1bfb
AM
8181 rela.r_offset = (htab->splt->output_section->vma
8182 + htab->splt->output_offset
8183 + ent->plt.offset);
8184 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
8185 rela.r_addend = ent->addend;
5bd4f169 8186
411e1bfb
AM
8187 loc = htab->srelplt->contents;
8188 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
8189 * sizeof (Elf64_External_Rela));
8190 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8191 }
5bd4f169
AM
8192 }
8193
8194 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
8195 {
5bd4f169 8196 Elf_Internal_Rela rela;
947216bf 8197 bfd_byte *loc;
5bd4f169 8198
65f38f15 8199 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 8200
65f38f15
AM
8201 if (h->dynindx == -1
8202 || (h->root.type != bfd_link_hash_defined
8203 && h->root.type != bfd_link_hash_defweak)
8204 || htab->srelbss == NULL)
8205 abort ();
5bd4f169
AM
8206
8207 rela.r_offset = (h->root.u.def.value
8208 + h->root.u.def.section->output_section->vma
8209 + h->root.u.def.section->output_offset);
8210 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
8211 rela.r_addend = 0;
947216bf
AM
8212 loc = htab->srelbss->contents;
8213 loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 8214 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM
8215 }
8216
5bd4f169
AM
8217 /* Mark some specially defined symbols as absolute. */
8218 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
8219 sym->st_shndx = SHN_ABS;
8220
b34976b6 8221 return TRUE;
5bd4f169
AM
8222}
8223
65f38f15
AM
8224/* Used to decide how to sort relocs in an optimal manner for the
8225 dynamic linker, before writing them out. */
8226
8227static enum elf_reloc_type_class
8228ppc64_elf_reloc_type_class (rela)
8229 const Elf_Internal_Rela *rela;
8230{
04c9666a 8231 enum elf_ppc64_reloc_type r_type;
a33d1f77 8232
04c9666a 8233 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rela->r_info);
a33d1f77 8234 switch (r_type)
65f38f15
AM
8235 {
8236 case R_PPC64_RELATIVE:
8237 return reloc_class_relative;
8238 case R_PPC64_JMP_SLOT:
8239 return reloc_class_plt;
8240 case R_PPC64_COPY:
8241 return reloc_class_copy;
8242 default:
8243 return reloc_class_normal;
8244 }
8245}
8246
5bd4f169
AM
8247/* Finish up the dynamic sections. */
8248
b34976b6 8249static bfd_boolean
5bd4f169
AM
8250ppc64_elf_finish_dynamic_sections (output_bfd, info)
8251 bfd *output_bfd;
8252 struct bfd_link_info *info;
8253{
65f38f15
AM
8254 struct ppc_link_hash_table *htab;
8255 bfd *dynobj;
5bd4f169 8256 asection *sdyn;
5bd4f169 8257
65f38f15
AM
8258 htab = ppc_hash_table (info);
8259 dynobj = htab->elf.dynobj;
5bd4f169
AM
8260 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8261
65f38f15 8262 if (htab->elf.dynamic_sections_created)
5bd4f169 8263 {
5bd4f169
AM
8264 Elf64_External_Dyn *dyncon, *dynconend;
8265
65f38f15
AM
8266 if (sdyn == NULL || htab->sgot == NULL)
8267 abort ();
5bd4f169
AM
8268
8269 dyncon = (Elf64_External_Dyn *) sdyn->contents;
8270 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
8271 for (; dyncon < dynconend; dyncon++)
8272 {
8273 Elf_Internal_Dyn dyn;
19397422 8274 asection *s;
5bd4f169
AM
8275
8276 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
8277
8278 switch (dyn.d_tag)
8279 {
65f38f15
AM
8280 default:
8281 continue;
5bd4f169 8282
5d1634d7 8283 case DT_PPC64_GLINK:
6348e046
AM
8284 s = htab->sglink;
8285 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
5d1634d7
AM
8286 break;
8287
19397422
AM
8288 case DT_PPC64_OPD:
8289 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM
8290 if (s == NULL)
8291 continue;
8292 dyn.d_un.d_ptr = s->vma;
19397422
AM
8293 break;
8294
8295 case DT_PPC64_OPDSZ:
8296 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM
8297 if (s == NULL)
8298 continue;
8299 dyn.d_un.d_val = s->_raw_size;
19397422
AM
8300 break;
8301
65f38f15 8302 case DT_PLTGOT:
6348e046
AM
8303 s = htab->splt;
8304 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM
8305 break;
8306
8307 case DT_JMPREL:
6348e046
AM
8308 s = htab->srelplt;
8309 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 8310 break;
5bd4f169 8311
65f38f15 8312 case DT_PLTRELSZ:
5d1634d7
AM
8313 dyn.d_un.d_val = htab->srelplt->_raw_size;
8314 break;
8315
8316 case DT_RELASZ:
8317 /* Don't count procedure linkage table relocs in the
8318 overall reloc count. */
6348e046
AM
8319 s = htab->srelplt;
8320 if (s == NULL)
8321 continue;
8322 dyn.d_un.d_val -= s->_raw_size;
8323 break;
8324
8325 case DT_RELA:
8326 /* We may not be using the standard ELF linker script.
8327 If .rela.plt is the first .rela section, we adjust
8328 DT_RELA to not include it. */
8329 s = htab->srelplt;
8330 if (s == NULL)
8331 continue;
8332 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
8333 continue;
8334 dyn.d_un.d_ptr += s->_raw_size;
65f38f15 8335 break;
5bd4f169 8336 }
5bd4f169 8337
65f38f15 8338 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 8339 }
5bd4f169
AM
8340 }
8341
5d1634d7
AM
8342 if (htab->sgot != NULL && htab->sgot->_raw_size != 0)
8343 {
8344 /* Fill in the first entry in the global offset table.
8345 We use it to hold the link-time TOCbase. */
8346 bfd_put_64 (output_bfd,
60ee0d4a 8347 elf_gp (output_bfd) + TOC_BASE_OFF,
5d1634d7
AM
8348 htab->sgot->contents);
8349
8350 /* Set .got entry size. */
8351 elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 8;
8352 }
8353
8354 if (htab->splt != NULL && htab->splt->_raw_size != 0)
8355 {
8356 /* Set .plt entry size. */
8357 elf_section_data (htab->splt->output_section)->this_hdr.sh_entsize
8358 = PLT_ENTRY_SIZE;
8359 }
8360
b34976b6 8361 return TRUE;
5bd4f169
AM
8362}
8363
8364#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
8365#define TARGET_LITTLE_NAME "elf64-powerpcle"
8366#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
8367#define TARGET_BIG_NAME "elf64-powerpc"
8368#define ELF_ARCH bfd_arch_powerpc
8369#define ELF_MACHINE_CODE EM_PPC64
8370#define ELF_MAXPAGESIZE 0x10000
8371#define elf_info_to_howto ppc64_elf_info_to_howto
8372
8373#ifdef EM_CYGNUS_POWERPC
8374#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8375#endif
8376
8377#ifdef EM_PPC_OLD
8378#define ELF_MACHINE_ALT2 EM_PPC_OLD
8379#endif
8380
8381#define elf_backend_want_got_sym 0
8382#define elf_backend_want_plt_sym 0
8383#define elf_backend_plt_alignment 3
8384#define elf_backend_plt_not_loaded 1
8385#define elf_backend_got_symbol_offset 0
5d1634d7
AM
8386#define elf_backend_got_header_size 8
8387#define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
5bd4f169 8388#define elf_backend_can_gc_sections 1
65f38f15 8389#define elf_backend_can_refcount 1
b491616a 8390#define elf_backend_rela_normal 1
5bd4f169 8391
65f38f15 8392#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
65f38f15 8393#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
f0abc2a1 8394#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
65f38f15 8395#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
721956f4 8396#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
65f38f15 8397
feee612b 8398#define elf_backend_object_p ppc64_elf_object_p
65f38f15
AM
8399#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
8400#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
8401#define elf_backend_check_relocs ppc64_elf_check_relocs
8402#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
8403#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
8404#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
e86ce104
AM
8405#define elf_backend_hide_symbol ppc64_elf_hide_symbol
8406#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
65f38f15 8407#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
65f38f15
AM
8408#define elf_backend_relocate_section ppc64_elf_relocate_section
8409#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
8410#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
8411#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
5bd4f169
AM
8412
8413#include "elf64-target.h"