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2003-02-27 Andrew Cagney <cagney@redhat.com>
[binutils.git] / bfd / elf64-ppc.c
blob23d95d512e40eac18047bfd3fd54cdaa5f5879ce
1 /* PowerPC64-specific support for 64-bit ELF.
2 Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
3 Written by Linus Nordberg, Swox AB <info@swox.com>,
4 based on elf32-ppc.c by Ian Lance Taylor.
5
6 This file is part of BFD, the Binary File Descriptor library.
7
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.
12
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.
17
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. */
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"
30 #include "elf/ppc64.h"
31 #include "elf64-ppc.h"
32
33 static void ppc_howto_init
34 PARAMS ((void));
35 static reloc_howto_type *ppc64_elf_reloc_type_lookup
36 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
37 static void ppc64_elf_info_to_howto
38 PARAMS ((bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst));
39 static bfd_reloc_status_type ppc64_elf_ha_reloc
40 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
41 static bfd_reloc_status_type ppc64_elf_brtaken_reloc
42 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
43 static bfd_reloc_status_type ppc64_elf_sectoff_reloc
44 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
45 static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
46 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
47 static bfd_reloc_status_type ppc64_elf_toc_reloc
48 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
49 static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
50 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
51 static bfd_reloc_status_type ppc64_elf_toc64_reloc
52 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
53 static bfd_reloc_status_type ppc64_elf_unhandled_reloc
54 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
55 static bfd_boolean ppc64_elf_object_p
56 PARAMS ((bfd *));
57 static bfd_boolean ppc64_elf_merge_private_bfd_data
58 PARAMS ((bfd *, bfd *));
59 static bfd_boolean ppc64_elf_new_section_hook
60 PARAMS ((bfd *, asection *));
61
62
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. */
71 #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
72
73 /* TOC base pointers offset from start of TOC. */
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
79
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 */
95
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
106 /* Some other nops. */
107 #define CROR_151515 0x4def7b82
108 #define CROR_313131 0x4ffffb82
109
110 /* .glink entries for the first 32k functions are two instructions. */
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 */
117 #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
118
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
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
127 relocate .opd without reloc entries. */
128 #ifndef NO_OPD_RELOCS
129 #define NO_OPD_RELOCS 0
130 #endif
131 \f
132 #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
133
134 /* Relocation HOWTO's. */
135 static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
136
137 static reloc_howto_type ppc64_elf_howto_raw[] = {
138 /* This reloc does nothing. */
139 HOWTO (R_PPC64_NONE, /* type */
140 0, /* rightshift */
141 2, /* size (0 = byte, 1 = short, 2 = long) */
142 32, /* bitsize */
143 FALSE, /* pc_relative */
144 0, /* bitpos */
145 complain_overflow_dont, /* complain_on_overflow */
146 bfd_elf_generic_reloc, /* special_function */
147 "R_PPC64_NONE", /* name */
148 FALSE, /* partial_inplace */
149 0, /* src_mask */
150 0, /* dst_mask */
151 FALSE), /* pcrel_offset */
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 */
158 FALSE, /* pc_relative */
159 0, /* bitpos */
160 complain_overflow_bitfield, /* complain_on_overflow */
161 bfd_elf_generic_reloc, /* special_function */
162 "R_PPC64_ADDR32", /* name */
163 FALSE, /* partial_inplace */
164 0, /* src_mask */
165 0xffffffff, /* dst_mask */
166 FALSE), /* pcrel_offset */
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 */
174 FALSE, /* pc_relative */
175 0, /* bitpos */
176 complain_overflow_bitfield, /* complain_on_overflow */
177 bfd_elf_generic_reloc, /* special_function */
178 "R_PPC64_ADDR24", /* name */
179 FALSE, /* partial_inplace */
180 0, /* src_mask */
181 0x03fffffc, /* dst_mask */
182 FALSE), /* pcrel_offset */
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 */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_bitfield, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_PPC64_ADDR16", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0xffff, /* dst_mask */
197 FALSE), /* pcrel_offset */
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 */
204 FALSE, /* pc_relative */
205 0, /* bitpos */
206 complain_overflow_dont,/* complain_on_overflow */
207 bfd_elf_generic_reloc, /* special_function */
208 "R_PPC64_ADDR16_LO", /* name */
209 FALSE, /* partial_inplace */
210 0, /* src_mask */
211 0xffff, /* dst_mask */
212 FALSE), /* pcrel_offset */
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 */
219 FALSE, /* pc_relative */
220 0, /* bitpos */
221 complain_overflow_dont, /* complain_on_overflow */
222 bfd_elf_generic_reloc, /* special_function */
223 "R_PPC64_ADDR16_HI", /* name */
224 FALSE, /* partial_inplace */
225 0, /* src_mask */
226 0xffff, /* dst_mask */
227 FALSE), /* pcrel_offset */
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 */
235 FALSE, /* pc_relative */
236 0, /* bitpos */
237 complain_overflow_dont, /* complain_on_overflow */
238 ppc64_elf_ha_reloc, /* special_function */
239 "R_PPC64_ADDR16_HA", /* name */
240 FALSE, /* partial_inplace */
241 0, /* src_mask */
242 0xffff, /* dst_mask */
243 FALSE), /* pcrel_offset */
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 */
251 FALSE, /* pc_relative */
252 0, /* bitpos */
253 complain_overflow_bitfield, /* complain_on_overflow */
254 bfd_elf_generic_reloc, /* special_function */
255 "R_PPC64_ADDR14", /* name */
256 FALSE, /* partial_inplace */
257 0, /* src_mask */
258 0x0000fffc, /* dst_mask */
259 FALSE), /* pcrel_offset */
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 */
268 FALSE, /* pc_relative */
269 0, /* bitpos */
270 complain_overflow_bitfield, /* complain_on_overflow */
271 ppc64_elf_brtaken_reloc, /* special_function */
272 "R_PPC64_ADDR14_BRTAKEN",/* name */
273 FALSE, /* partial_inplace */
274 0, /* src_mask */
275 0x0000fffc, /* dst_mask */
276 FALSE), /* pcrel_offset */
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 */
285 FALSE, /* pc_relative */
286 0, /* bitpos */
287 complain_overflow_bitfield, /* complain_on_overflow */
288 ppc64_elf_brtaken_reloc, /* special_function */
289 "R_PPC64_ADDR14_BRNTAKEN",/* name */
290 FALSE, /* partial_inplace */
291 0, /* src_mask */
292 0x0000fffc, /* dst_mask */
293 FALSE), /* pcrel_offset */
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 */
300 TRUE, /* pc_relative */
301 0, /* bitpos */
302 complain_overflow_signed, /* complain_on_overflow */
303 bfd_elf_generic_reloc, /* special_function */
304 "R_PPC64_REL24", /* name */
305 FALSE, /* partial_inplace */
306 0, /* src_mask */
307 0x03fffffc, /* dst_mask */
308 TRUE), /* pcrel_offset */
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 */
315 TRUE, /* pc_relative */
316 0, /* bitpos */
317 complain_overflow_signed, /* complain_on_overflow */
318 bfd_elf_generic_reloc, /* special_function */
319 "R_PPC64_REL14", /* name */
320 FALSE, /* partial_inplace */
321 0, /* src_mask */
322 0x0000fffc, /* dst_mask */
323 TRUE), /* pcrel_offset */
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 */
332 TRUE, /* pc_relative */
333 0, /* bitpos */
334 complain_overflow_signed, /* complain_on_overflow */
335 ppc64_elf_brtaken_reloc, /* special_function */
336 "R_PPC64_REL14_BRTAKEN", /* name */
337 FALSE, /* partial_inplace */
338 0, /* src_mask */
339 0x0000fffc, /* dst_mask */
340 TRUE), /* pcrel_offset */
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 */
349 TRUE, /* pc_relative */
350 0, /* bitpos */
351 complain_overflow_signed, /* complain_on_overflow */
352 ppc64_elf_brtaken_reloc, /* special_function */
353 "R_PPC64_REL14_BRNTAKEN",/* name */
354 FALSE, /* partial_inplace */
355 0, /* src_mask */
356 0x0000fffc, /* dst_mask */
357 TRUE), /* pcrel_offset */
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 */
365 FALSE, /* pc_relative */
366 0, /* bitpos */
367 complain_overflow_signed, /* complain_on_overflow */
368 ppc64_elf_unhandled_reloc, /* special_function */
369 "R_PPC64_GOT16", /* name */
370 FALSE, /* partial_inplace */
371 0, /* src_mask */
372 0xffff, /* dst_mask */
373 FALSE), /* pcrel_offset */
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 */
381 FALSE, /* pc_relative */
382 0, /* bitpos */
383 complain_overflow_dont, /* complain_on_overflow */
384 ppc64_elf_unhandled_reloc, /* special_function */
385 "R_PPC64_GOT16_LO", /* name */
386 FALSE, /* partial_inplace */
387 0, /* src_mask */
388 0xffff, /* dst_mask */
389 FALSE), /* pcrel_offset */
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 */
397 FALSE, /* pc_relative */
398 0, /* bitpos */
399 complain_overflow_dont,/* complain_on_overflow */
400 ppc64_elf_unhandled_reloc, /* special_function */
401 "R_PPC64_GOT16_HI", /* name */
402 FALSE, /* partial_inplace */
403 0, /* src_mask */
404 0xffff, /* dst_mask */
405 FALSE), /* pcrel_offset */
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 */
413 FALSE, /* pc_relative */
414 0, /* bitpos */
415 complain_overflow_dont,/* complain_on_overflow */
416 ppc64_elf_unhandled_reloc, /* special_function */
417 "R_PPC64_GOT16_HA", /* name */
418 FALSE, /* partial_inplace */
419 0, /* src_mask */
420 0xffff, /* dst_mask */
421 FALSE), /* pcrel_offset */
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 */
430 0, /* this one is variable size */
431 0, /* bitsize */
432 FALSE, /* pc_relative */
433 0, /* bitpos */
434 complain_overflow_dont, /* complain_on_overflow */
435 ppc64_elf_unhandled_reloc, /* special_function */
436 "R_PPC64_COPY", /* name */
437 FALSE, /* partial_inplace */
438 0, /* src_mask */
439 0, /* dst_mask */
440 FALSE), /* pcrel_offset */
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 */
448 FALSE, /* pc_relative */
449 0, /* bitpos */
450 complain_overflow_dont, /* complain_on_overflow */
451 ppc64_elf_unhandled_reloc, /* special_function */
452 "R_PPC64_GLOB_DAT", /* name */
453 FALSE, /* partial_inplace */
454 0, /* src_mask */
455 ONES (64), /* dst_mask */
456 FALSE), /* pcrel_offset */
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 */
464 FALSE, /* pc_relative */
465 0, /* bitpos */
466 complain_overflow_dont, /* complain_on_overflow */
467 ppc64_elf_unhandled_reloc, /* special_function */
468 "R_PPC64_JMP_SLOT", /* name */
469 FALSE, /* partial_inplace */
470 0, /* src_mask */
471 0, /* dst_mask */
472 FALSE), /* pcrel_offset */
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 */
481 FALSE, /* pc_relative */
482 0, /* bitpos */
483 complain_overflow_dont, /* complain_on_overflow */
484 bfd_elf_generic_reloc, /* special_function */
485 "R_PPC64_RELATIVE", /* name */
486 FALSE, /* partial_inplace */
487 0, /* src_mask */
488 ONES (64), /* dst_mask */
489 FALSE), /* pcrel_offset */
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 */
496 FALSE, /* pc_relative */
497 0, /* bitpos */
498 complain_overflow_bitfield, /* complain_on_overflow */
499 bfd_elf_generic_reloc, /* special_function */
500 "R_PPC64_UADDR32", /* name */
501 FALSE, /* partial_inplace */
502 0, /* src_mask */
503 0xffffffff, /* dst_mask */
504 FALSE), /* pcrel_offset */
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 */
511 FALSE, /* pc_relative */
512 0, /* bitpos */
513 complain_overflow_bitfield, /* complain_on_overflow */
514 bfd_elf_generic_reloc, /* special_function */
515 "R_PPC64_UADDR16", /* name */
516 FALSE, /* partial_inplace */
517 0, /* src_mask */
518 0xffff, /* dst_mask */
519 FALSE), /* pcrel_offset */
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 */
526 TRUE, /* pc_relative */
527 0, /* bitpos */
528 /* FIXME: Verify. Was complain_overflow_bitfield. */
529 complain_overflow_signed, /* complain_on_overflow */
530 bfd_elf_generic_reloc, /* special_function */
531 "R_PPC64_REL32", /* name */
532 FALSE, /* partial_inplace */
533 0, /* src_mask */
534 0xffffffff, /* dst_mask */
535 TRUE), /* pcrel_offset */
536
537 /* 32-bit relocation to the symbol's procedure linkage table. */
538 HOWTO (R_PPC64_PLT32, /* type */
539 0, /* rightshift */
540 2, /* size (0 = byte, 1 = short, 2 = long) */
541 32, /* bitsize */
542 FALSE, /* pc_relative */
543 0, /* bitpos */
544 complain_overflow_bitfield, /* complain_on_overflow */
545 ppc64_elf_unhandled_reloc, /* special_function */
546 "R_PPC64_PLT32", /* name */
547 FALSE, /* partial_inplace */
548 0, /* src_mask */
549 0xffffffff, /* dst_mask */
550 FALSE), /* pcrel_offset */
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 */
558 TRUE, /* pc_relative */
559 0, /* bitpos */
560 complain_overflow_signed, /* complain_on_overflow */
561 bfd_elf_generic_reloc, /* special_function */
562 "R_PPC64_PLTREL32", /* name */
563 FALSE, /* partial_inplace */
564 0, /* src_mask */
565 0xffffffff, /* dst_mask */
566 TRUE), /* pcrel_offset */
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 */
574 FALSE, /* pc_relative */
575 0, /* bitpos */
576 complain_overflow_dont, /* complain_on_overflow */
577 ppc64_elf_unhandled_reloc, /* special_function */
578 "R_PPC64_PLT16_LO", /* name */
579 FALSE, /* partial_inplace */
580 0, /* src_mask */
581 0xffff, /* dst_mask */
582 FALSE), /* pcrel_offset */
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 */
590 FALSE, /* pc_relative */
591 0, /* bitpos */
592 complain_overflow_dont, /* complain_on_overflow */
593 ppc64_elf_unhandled_reloc, /* special_function */
594 "R_PPC64_PLT16_HI", /* name */
595 FALSE, /* partial_inplace */
596 0, /* src_mask */
597 0xffff, /* dst_mask */
598 FALSE), /* pcrel_offset */
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 */
606 FALSE, /* pc_relative */
607 0, /* bitpos */
608 complain_overflow_dont, /* complain_on_overflow */
609 ppc64_elf_unhandled_reloc, /* special_function */
610 "R_PPC64_PLT16_HA", /* name */
611 FALSE, /* partial_inplace */
612 0, /* src_mask */
613 0xffff, /* dst_mask */
614 FALSE), /* pcrel_offset */
615
616 /* 16-bit section relative relocation. */
617 HOWTO (R_PPC64_SECTOFF, /* type */
618 0, /* rightshift */
619 1, /* size (0 = byte, 1 = short, 2 = long) */
620 16, /* bitsize */
621 FALSE, /* pc_relative */
622 0, /* bitpos */
623 complain_overflow_bitfield, /* complain_on_overflow */
624 ppc64_elf_sectoff_reloc, /* special_function */
625 "R_PPC64_SECTOFF", /* name */
626 FALSE, /* partial_inplace */
627 0, /* src_mask */
628 0xffff, /* dst_mask */
629 FALSE), /* pcrel_offset */
630
631 /* Like R_PPC64_SECTOFF, but no overflow warning. */
632 HOWTO (R_PPC64_SECTOFF_LO, /* type */
633 0, /* rightshift */
634 1, /* size (0 = byte, 1 = short, 2 = long) */
635 16, /* bitsize */
636 FALSE, /* pc_relative */
637 0, /* bitpos */
638 complain_overflow_dont, /* complain_on_overflow */
639 ppc64_elf_sectoff_reloc, /* special_function */
640 "R_PPC64_SECTOFF_LO", /* name */
641 FALSE, /* partial_inplace */
642 0, /* src_mask */
643 0xffff, /* dst_mask */
644 FALSE), /* pcrel_offset */
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 */
651 FALSE, /* pc_relative */
652 0, /* bitpos */
653 complain_overflow_dont, /* complain_on_overflow */
654 ppc64_elf_sectoff_reloc, /* special_function */
655 "R_PPC64_SECTOFF_HI", /* name */
656 FALSE, /* partial_inplace */
657 0, /* src_mask */
658 0xffff, /* dst_mask */
659 FALSE), /* pcrel_offset */
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 */
666 FALSE, /* pc_relative */
667 0, /* bitpos */
668 complain_overflow_dont, /* complain_on_overflow */
669 ppc64_elf_sectoff_ha_reloc, /* special_function */
670 "R_PPC64_SECTOFF_HA", /* name */
671 FALSE, /* partial_inplace */
672 0, /* src_mask */
673 0xffff, /* dst_mask */
674 FALSE), /* pcrel_offset */
675
676 /* Like R_PPC64_REL24 without touching the two least significant bits. */
677 HOWTO (R_PPC64_REL30, /* type */
678 2, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 30, /* bitsize */
681 TRUE, /* pc_relative */
682 0, /* bitpos */
683 complain_overflow_dont, /* complain_on_overflow */
684 bfd_elf_generic_reloc, /* special_function */
685 "R_PPC64_REL30", /* name */
686 FALSE, /* partial_inplace */
687 0, /* src_mask */
688 0xfffffffc, /* dst_mask */
689 TRUE), /* pcrel_offset */
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 */
698 FALSE, /* pc_relative */
699 0, /* bitpos */
700 complain_overflow_dont, /* complain_on_overflow */
701 bfd_elf_generic_reloc, /* special_function */
702 "R_PPC64_ADDR64", /* name */
703 FALSE, /* partial_inplace */
704 0, /* src_mask */
705 ONES (64), /* dst_mask */
706 FALSE), /* pcrel_offset */
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 */
713 FALSE, /* pc_relative */
714 0, /* bitpos */
715 complain_overflow_dont, /* complain_on_overflow */
716 bfd_elf_generic_reloc, /* special_function */
717 "R_PPC64_ADDR16_HIGHER", /* name */
718 FALSE, /* partial_inplace */
719 0, /* src_mask */
720 0xffff, /* dst_mask */
721 FALSE), /* pcrel_offset */
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 */
729 FALSE, /* pc_relative */
730 0, /* bitpos */
731 complain_overflow_dont, /* complain_on_overflow */
732 ppc64_elf_ha_reloc, /* special_function */
733 "R_PPC64_ADDR16_HIGHERA", /* name */
734 FALSE, /* partial_inplace */
735 0, /* src_mask */
736 0xffff, /* dst_mask */
737 FALSE), /* pcrel_offset */
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 */
744 FALSE, /* pc_relative */
745 0, /* bitpos */
746 complain_overflow_dont, /* complain_on_overflow */
747 bfd_elf_generic_reloc, /* special_function */
748 "R_PPC64_ADDR16_HIGHEST", /* name */
749 FALSE, /* partial_inplace */
750 0, /* src_mask */
751 0xffff, /* dst_mask */
752 FALSE), /* pcrel_offset */
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 */
760 FALSE, /* pc_relative */
761 0, /* bitpos */
762 complain_overflow_dont, /* complain_on_overflow */
763 ppc64_elf_ha_reloc, /* special_function */
764 "R_PPC64_ADDR16_HIGHESTA", /* name */
765 FALSE, /* partial_inplace */
766 0, /* src_mask */
767 0xffff, /* dst_mask */
768 FALSE), /* pcrel_offset */
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 */
775 FALSE, /* pc_relative */
776 0, /* bitpos */
777 complain_overflow_dont, /* complain_on_overflow */
778 bfd_elf_generic_reloc, /* special_function */
779 "R_PPC64_UADDR64", /* name */
780 FALSE, /* partial_inplace */
781 0, /* src_mask */
782 ONES (64), /* dst_mask */
783 FALSE), /* pcrel_offset */
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 */
790 TRUE, /* pc_relative */
791 0, /* bitpos */
792 complain_overflow_dont, /* complain_on_overflow */
793 bfd_elf_generic_reloc, /* special_function */
794 "R_PPC64_REL64", /* name */
795 FALSE, /* partial_inplace */
796 0, /* src_mask */
797 ONES (64), /* dst_mask */
798 TRUE), /* pcrel_offset */
799
800 /* 64-bit relocation to the symbol's procedure linkage table. */
801 HOWTO (R_PPC64_PLT64, /* type */
802 0, /* rightshift */
803 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
804 64, /* bitsize */
805 FALSE, /* pc_relative */
806 0, /* bitpos */
807 complain_overflow_dont, /* complain_on_overflow */
808 ppc64_elf_unhandled_reloc, /* special_function */
809 "R_PPC64_PLT64", /* name */
810 FALSE, /* partial_inplace */
811 0, /* src_mask */
812 ONES (64), /* dst_mask */
813 FALSE), /* pcrel_offset */
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 */
822 TRUE, /* pc_relative */
823 0, /* bitpos */
824 complain_overflow_dont, /* complain_on_overflow */
825 ppc64_elf_unhandled_reloc, /* special_function */
826 "R_PPC64_PLTREL64", /* name */
827 FALSE, /* partial_inplace */
828 0, /* src_mask */
829 ONES (64), /* dst_mask */
830 TRUE), /* pcrel_offset */
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 */
839 FALSE, /* pc_relative */
840 0, /* bitpos */
841 complain_overflow_signed, /* complain_on_overflow */
842 ppc64_elf_toc_reloc, /* special_function */
843 "R_PPC64_TOC16", /* name */
844 FALSE, /* partial_inplace */
845 0, /* src_mask */
846 0xffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
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 */
856 FALSE, /* pc_relative */
857 0, /* bitpos */
858 complain_overflow_dont, /* complain_on_overflow */
859 ppc64_elf_toc_reloc, /* special_function */
860 "R_PPC64_TOC16_LO", /* name */
861 FALSE, /* partial_inplace */
862 0, /* src_mask */
863 0xffff, /* dst_mask */
864 FALSE), /* pcrel_offset */
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 */
873 FALSE, /* pc_relative */
874 0, /* bitpos */
875 complain_overflow_dont, /* complain_on_overflow */
876 ppc64_elf_toc_reloc, /* special_function */
877 "R_PPC64_TOC16_HI", /* name */
878 FALSE, /* partial_inplace */
879 0, /* src_mask */
880 0xffff, /* dst_mask */
881 FALSE), /* pcrel_offset */
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 */
892 FALSE, /* pc_relative */
893 0, /* bitpos */
894 complain_overflow_dont, /* complain_on_overflow */
895 ppc64_elf_toc_ha_reloc, /* special_function */
896 "R_PPC64_TOC16_HA", /* name */
897 FALSE, /* partial_inplace */
898 0, /* src_mask */
899 0xffff, /* dst_mask */
900 FALSE), /* pcrel_offset */
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 */
909 FALSE, /* pc_relative */
910 0, /* bitpos */
911 complain_overflow_bitfield, /* complain_on_overflow */
912 ppc64_elf_toc64_reloc, /* special_function */
913 "R_PPC64_TOC", /* name */
914 FALSE, /* partial_inplace */
915 0, /* src_mask */
916 ONES (64), /* dst_mask */
917 FALSE), /* pcrel_offset */
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 */
932 FALSE, /* pc_relative */
933 0, /* bitpos */
934 complain_overflow_signed, /* complain_on_overflow */
935 ppc64_elf_unhandled_reloc, /* special_function */
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 */
1535 FALSE, /* partial_inplace */
1536 0, /* src_mask */
1537 0xffff, /* dst_mask */
1538 FALSE), /* pcrel_offset */
1539
1540 /* Like GOT_TLSGD16, but no overflow. */
1541 HOWTO (R_PPC64_GOT_TLSGD16_LO,
1542 0, /* rightshift */
1543 1, /* size (0 = byte, 1 = short, 2 = long) */
1544 16, /* bitsize */
1545 FALSE, /* pc_relative */
1546 0, /* bitpos */
1547 complain_overflow_dont, /* complain_on_overflow */
1548 ppc64_elf_unhandled_reloc, /* special_function */
1549 "R_PPC64_GOT_TLSGD16_LO", /* name */
1550 FALSE, /* partial_inplace */
1551 0, /* src_mask */
1552 0xffff, /* dst_mask */
1553 FALSE), /* pcrel_offset */
1554
1555 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1556 HOWTO (R_PPC64_GOT_TLSGD16_HI,
1557 16, /* rightshift */
1558 1, /* size (0 = byte, 1 = short, 2 = long) */
1559 16, /* bitsize */
1560 FALSE, /* pc_relative */
1561 0, /* bitpos */
1562 complain_overflow_dont, /* complain_on_overflow */
1563 ppc64_elf_unhandled_reloc, /* special_function */
1564 "R_PPC64_GOT_TLSGD16_HI", /* name */
1565 FALSE, /* partial_inplace */
1566 0, /* src_mask */
1567 0xffff, /* dst_mask */
1568 FALSE), /* pcrel_offset */
1569
1570 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1571 HOWTO (R_PPC64_GOT_TLSGD16_HA,
1572 16, /* rightshift */
1573 1, /* size (0 = byte, 1 = short, 2 = long) */
1574 16, /* bitsize */
1575 FALSE, /* pc_relative */
1576 0, /* bitpos */
1577 complain_overflow_dont, /* complain_on_overflow */
1578 ppc64_elf_unhandled_reloc, /* special_function */
1579 "R_PPC64_GOT_TLSGD16_HA", /* name */
1580 FALSE, /* partial_inplace */
1581 0, /* src_mask */
1582 0xffff, /* dst_mask */
1583 FALSE), /* pcrel_offset */
1584
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,
1589 0, /* rightshift */
1590 1, /* size (0 = byte, 1 = short, 2 = long) */
1591 16, /* bitsize */
1592 FALSE, /* pc_relative */
1593 0, /* bitpos */
1594 complain_overflow_signed, /* complain_on_overflow */
1595 ppc64_elf_unhandled_reloc, /* special_function */
1596 "R_PPC64_GOT_TLSLD16", /* name */
1597 FALSE, /* partial_inplace */
1598 0, /* src_mask */
1599 0xffff, /* dst_mask */
1600 FALSE), /* pcrel_offset */
1601
1602 /* Like GOT_TLSLD16, but no overflow. */
1603 HOWTO (R_PPC64_GOT_TLSLD16_LO,
1604 0, /* rightshift */
1605 1, /* size (0 = byte, 1 = short, 2 = long) */
1606 16, /* bitsize */
1607 FALSE, /* pc_relative */
1608 0, /* bitpos */
1609 complain_overflow_dont, /* complain_on_overflow */
1610 ppc64_elf_unhandled_reloc, /* special_function */
1611 "R_PPC64_GOT_TLSLD16_LO", /* name */
1612 FALSE, /* partial_inplace */
1613 0, /* src_mask */
1614 0xffff, /* dst_mask */
1615 FALSE), /* pcrel_offset */
1616
1617 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1618 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1619 16, /* rightshift */
1620 1, /* size (0 = byte, 1 = short, 2 = long) */
1621 16, /* bitsize */
1622 FALSE, /* pc_relative */
1623 0, /* bitpos */
1624 complain_overflow_dont, /* complain_on_overflow */
1625 ppc64_elf_unhandled_reloc, /* special_function */
1626 "R_PPC64_GOT_TLSLD16_HI", /* name */
1627 FALSE, /* partial_inplace */
1628 0, /* src_mask */
1629 0xffff, /* dst_mask */
1630 FALSE), /* pcrel_offset */
1631
1632 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1633 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1634 16, /* rightshift */
1635 1, /* size (0 = byte, 1 = short, 2 = long) */
1636 16, /* bitsize */
1637 FALSE, /* pc_relative */
1638 0, /* bitpos */
1639 complain_overflow_dont, /* complain_on_overflow */
1640 ppc64_elf_unhandled_reloc, /* special_function */
1641 "R_PPC64_GOT_TLSLD16_HA", /* name */
1642 FALSE, /* partial_inplace */
1643 0, /* src_mask */
1644 0xffff, /* dst_mask */
1645 FALSE), /* pcrel_offset */
1646
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,
1650 0, /* rightshift */
1651 1, /* size (0 = byte, 1 = short, 2 = long) */
1652 16, /* bitsize */
1653 FALSE, /* pc_relative */
1654 0, /* bitpos */
1655 complain_overflow_signed, /* complain_on_overflow */
1656 ppc64_elf_unhandled_reloc, /* special_function */
1657 "R_PPC64_GOT_DTPREL16_DS", /* name */
1658 FALSE, /* partial_inplace */
1659 0, /* src_mask */
1660 0xfffc, /* dst_mask */
1661 FALSE), /* pcrel_offset */
1662
1663 /* Like GOT_DTPREL16_DS, but no overflow. */
1664 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
1665 0, /* rightshift */
1666 1, /* size (0 = byte, 1 = short, 2 = long) */
1667 16, /* bitsize */
1668 FALSE, /* pc_relative */
1669 0, /* bitpos */
1670 complain_overflow_dont, /* complain_on_overflow */
1671 ppc64_elf_unhandled_reloc, /* special_function */
1672 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
1673 FALSE, /* partial_inplace */
1674 0, /* src_mask */
1675 0xfffc, /* dst_mask */
1676 FALSE), /* pcrel_offset */
1677
1678 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1679 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1680 16, /* rightshift */
1681 1, /* size (0 = byte, 1 = short, 2 = long) */
1682 16, /* bitsize */
1683 FALSE, /* pc_relative */
1684 0, /* bitpos */
1685 complain_overflow_dont, /* complain_on_overflow */
1686 ppc64_elf_unhandled_reloc, /* special_function */
1687 "R_PPC64_GOT_DTPREL16_HI", /* name */
1688 FALSE, /* partial_inplace */
1689 0, /* src_mask */
1690 0xffff, /* dst_mask */
1691 FALSE), /* pcrel_offset */
1692
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,
1711 0, /* rightshift */
1712 1, /* size (0 = byte, 1 = short, 2 = long) */
1713 16, /* bitsize */
1714 FALSE, /* pc_relative */
1715 0, /* bitpos */
1716 complain_overflow_signed, /* complain_on_overflow */
1717 ppc64_elf_unhandled_reloc, /* special_function */
1718 "R_PPC64_GOT_TPREL16_DS", /* name */
1719 FALSE, /* partial_inplace */
1720 0, /* src_mask */
1721 0xffff, /* dst_mask */
1722 FALSE), /* pcrel_offset */
1723
1724 /* Like GOT_TPREL16_DS, but no overflow. */
1725 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
1726 0, /* rightshift */
1727 1, /* size (0 = byte, 1 = short, 2 = long) */
1728 16, /* bitsize */
1729 FALSE, /* pc_relative */
1730 0, /* bitpos */
1731 complain_overflow_dont, /* complain_on_overflow */
1732 ppc64_elf_unhandled_reloc, /* special_function */
1733 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
1734 FALSE, /* partial_inplace */
1735 0, /* src_mask */
1736 0xffff, /* dst_mask */
1737 FALSE), /* pcrel_offset */
1738
1739 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1740 HOWTO (R_PPC64_GOT_TPREL16_HI,
1741 16, /* rightshift */
1742 1, /* size (0 = byte, 1 = short, 2 = long) */
1743 16, /* bitsize */
1744 FALSE, /* pc_relative */
1745 0, /* bitpos */
1746 complain_overflow_dont, /* complain_on_overflow */
1747 ppc64_elf_unhandled_reloc, /* special_function */
1748 "R_PPC64_GOT_TPREL16_HI", /* name */
1749 FALSE, /* partial_inplace */
1750 0, /* src_mask */
1751 0xffff, /* dst_mask */
1752 FALSE), /* pcrel_offset */
1753
1754 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1755 HOWTO (R_PPC64_GOT_TPREL16_HA,
1756 16, /* rightshift */
1757 1, /* size (0 = byte, 1 = short, 2 = long) */
1758 16, /* bitsize */
1759 FALSE, /* pc_relative */
1760 0, /* bitpos */
1761 complain_overflow_dont, /* complain_on_overflow */
1762 ppc64_elf_unhandled_reloc, /* special_function */
1763 "R_PPC64_GOT_TPREL16_HA", /* name */
1764 FALSE, /* partial_inplace */
1765 0, /* src_mask */
1766 0xffff, /* dst_mask */
1767 FALSE), /* pcrel_offset */
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 */
1774 FALSE, /* pc_relative */
1775 0, /* bitpos */
1776 complain_overflow_dont, /* complain_on_overflow */
1777 NULL, /* special_function */
1778 "R_PPC64_GNU_VTINHERIT", /* name */
1779 FALSE, /* partial_inplace */
1780 0, /* src_mask */
1781 0, /* dst_mask */
1782 FALSE), /* pcrel_offset */
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 */
1789 FALSE, /* pc_relative */
1790 0, /* bitpos */
1791 complain_overflow_dont, /* complain_on_overflow */
1792 NULL, /* special_function */
1793 "R_PPC64_GNU_VTENTRY", /* name */
1794 FALSE, /* partial_inplace */
1795 0, /* src_mask */
1796 0, /* dst_mask */
1797 FALSE), /* pcrel_offset */
1798 };
1799
1800 \f
1801 /* Initialize the ppc64_elf_howto_table, so that linear accesses can
1802 be done. */
1803
1804 static void
1805 ppc_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
1820 static reloc_howto_type *
1821 ppc64_elf_reloc_type_lookup (abfd, code)
1822 bfd *abfd ATTRIBUTE_UNUSED;
1823 bfd_reloc_code_real_type code;
1824 {
1825 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
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
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;
1849 break;
1850 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
1851 break;
1852 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
1853 break;
1854 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
1855 break;
1856 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
1857 break;
1858 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
1859 break;
1860 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
1861 break;
1862 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
1863 break;
1864 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
1865 break;
1866 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
1867 break;
1868 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
1869 break;
1870 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
1871 break;
1872 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
1873 break;
1874 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
1875 break;
1876 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
1877 break;
1878 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
1879 break;
1880 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
1881 break;
1882 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
1883 break;
1884 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
1885 break;
1886 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
1887 break;
1888 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
1889 break;
1890 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
1891 break;
1892 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
1893 break;
1894 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
1895 break;
1896 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
1897 break;
1898 case BFD_RELOC_64: r = R_PPC64_ADDR64;
1899 break;
1900 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
1901 break;
1902 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
1903 break;
1904 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
1905 break;
1906 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
1907 break;
1908 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
1909 break;
1910 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
1911 break;
1912 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
1913 break;
1914 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
1915 break;
1916 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
1917 break;
1918 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
1919 break;
1920 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
1921 break;
1922 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
1923 break;
1924 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
1925 break;
1926 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
1927 break;
1928 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
1929 break;
1930 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
1931 break;
1932 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
1933 break;
1934 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
1935 break;
1936 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
1937 break;
1938 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
1939 break;
1940 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
1941 break;
1942 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
1943 break;
1944 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
1945 break;
1946 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
1947 break;
1948 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
1949 break;
1950 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
1951 break;
1952 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
1953 break;
1954 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
1955 break;
1956 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
1957 break;
1958 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
1959 break;
1960 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
1961 break;
1962 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
1963 break;
1964 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
1965 break;
1966 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
1967 break;
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;
2037 break;
2038 }
2039
2040 return ppc64_elf_howto_table[(int) r];
2041 };
2042
2043 /* Set the howto pointer for a PowerPC ELF reloc. */
2044
2045 static void
2046 ppc64_elf_info_to_howto (abfd, cache_ptr, dst)
2047 bfd *abfd ATTRIBUTE_UNUSED;
2048 arelent *cache_ptr;
2049 Elf_Internal_Rela *dst;
2050 {
2051 unsigned int type;
2052
2053 /* Initialize howto table if needed. */
2054 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
2055 ppc_howto_init ();
2056
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];
2061 }
2062
2063 /* Handle the R_PPC64_ADDR16_HA and similar relocs. */
2064
2065 static bfd_reloc_status_type
2066 ppc64_elf_ha_reloc (abfd, reloc_entry, symbol, data,
2067 input_section, output_bfd, error_message)
2068 bfd *abfd;
2069 arelent *reloc_entry;
2070 asymbol *symbol;
2071 PTR data;
2072 asection *input_section;
2073 bfd *output_bfd;
2074 char **error_message;
2075 {
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)
2080 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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 }
2089
2090 static bfd_reloc_status_type
2091 ppc64_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;
2102 enum elf_ppc64_reloc_type r_type;
2103 bfd_size_type octets;
2104 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
2105 bfd_boolean is_power4 = FALSE;
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. */
2110 if (output_bfd != NULL)
2111 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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);
2117 r_type = (enum elf_ppc64_reloc_type) reloc_entry->howto->type;
2118 if (r_type == R_PPC64_ADDR14_BRTAKEN
2119 || r_type == R_PPC64_REL14_BRTAKEN)
2120 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
2121
2122 if (is_power4)
2123 {
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;
2133 }
2134 else
2135 {
2136 bfd_vma target = 0;
2137 bfd_vma from;
2138
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;
2144
2145 from = (reloc_entry->address
2146 + input_section->output_offset
2147 + input_section->output_section->vma);
2148
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 }
2156
2157 static bfd_reloc_status_type
2158 ppc64_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)
2172 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2173 input_section, output_bfd, error_message);
2174
2175 /* Subtract the symbol section base address. */
2176 reloc_entry->addend -= symbol->section->output_section->vma;
2177 return bfd_reloc_continue;
2178 }
2179
2180 static bfd_reloc_status_type
2181 ppc64_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)
2195 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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
2206 static bfd_reloc_status_type
2207 ppc64_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)
2223 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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
2235 static bfd_reloc_status_type
2236 ppc64_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)
2252 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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
2267 static bfd_reloc_status_type
2268 ppc64_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)
2285 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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
2297 static bfd_reloc_status_type
2298 ppc64_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)
2312 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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
2325 /* Fix bad default arch selected for a 64 bit input bfd when the
2326 default is 32 bit. */
2327
2328 static bfd_boolean
2329 ppc64_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 }
2343 return TRUE;
2344 }
2345
2346 /* Merge backend specific data from an object file to the output
2347 object file when linking. */
2348
2349 static bfd_boolean
2350 ppc64_elf_merge_private_bfd_data (ibfd, obfd)
2351 bfd *ibfd;
2352 bfd *obfd;
2353 {
2354 /* Check if we have the same endianess. */
2355 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
2356 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
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
2366 (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
2367
2368 bfd_set_error (bfd_error_wrong_format);
2369 return FALSE;
2370 }
2371
2372 return TRUE;
2373 }
2374
2375 struct _ppc64_elf_section_data
2376 {
2377 struct bfd_elf_section_data elf;
2378
2379 /* An array with one entry for each opd function descriptor. */
2380 union
2381 {
2382 /* Points to the function code section for local opd entries. */
2383 asection **func_sec;
2384 /* After editing .opd, adjust references to opd local syms. */
2385 long *adjust;
2386 } opd;
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;
2391 };
2392
2393 #define ppc64_elf_section_data(sec) \
2394 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
2395
2396 static bfd_boolean
2397 ppc64_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 }
2411 \f
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
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
2452 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
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
2478 definition from some other object, eg. a static library. */
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
2486 struct 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
2500 /* Track GOT entries needed for a given symbol. We might need more
2501 than one got entry per symbol. */
2502 struct got_entry
2503 {
2504 struct got_entry *next;
2505
2506 /* The symbol addend that we'll be placing in the GOT. */
2507 bfd_vma addend;
2508
2509 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
2510 union
2511 {
2512 bfd_signed_vma refcount;
2513 bfd_vma offset;
2514 } got;
2515
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. */
2518 char tls_type;
2519 };
2520
2521 /* The same for PLT. */
2522 struct 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
2535 /* Of those relocs that might be copied as dynamic relocs, this macro
2536 selects those that must be copied when linking a shared library,
2537 even when the symbol is local. */
2538
2539 #define MUST_BE_DYN_RELOC(RTYPE) \
2540 ((RTYPE) != R_PPC64_REL32 \
2541 && (RTYPE) != R_PPC64_REL64 \
2542 && (RTYPE) != R_PPC64_REL30)
2543
2544 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2545 copying dynamic variables from a shared lib into an app's dynbss
2546 section, and instead use a dynamic relocation to point into the
2547 shared lib. */
2548 #define ELIMINATE_COPY_RELOCS 1
2549
2550 /* Section name for stubs is the associated section name plus this
2551 string. */
2552 #define STUB_SUFFIX ".stub"
2553
2554 /* Linker stubs.
2555 ppc_stub_long_branch:
2556 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2557 destination, but a 24 bit branch in a stub section will reach.
2558 . b dest
2559
2560 ppc_stub_plt_branch:
2561 Similar to the above, but a 24 bit branch in the stub section won't
2562 reach its destination.
2563 . addis %r12,%r2,xxx@toc@ha
2564 . ld %r11,xxx@toc@l(%r12)
2565 . mtctr %r11
2566 . bctr
2567
2568 ppc_stub_plt_call:
2569 Used to call a function in a shared library.
2570 . addis %r12,%r2,xxx@toc@ha
2571 . std %r2,40(%r1)
2572 . ld %r11,xxx+0@toc@l(%r12)
2573 . ld %r2,xxx+8@toc@l(%r12)
2574 . mtctr %r11
2575 . ld %r11,xxx+16@toc@l(%r12)
2576 . bctr
2577 */
2578
2579 enum ppc_stub_type {
2580 ppc_stub_none,
2581 ppc_stub_long_branch,
2582 ppc_stub_plt_branch,
2583 ppc_stub_plt_call
2584 };
2585
2586 struct ppc_stub_hash_entry {
2587
2588 /* Base hash table entry structure. */
2589 struct bfd_hash_entry root;
2590
2591 /* The stub section. */
2592 asection *stub_sec;
2593
2594 /* Offset within stub_sec of the beginning of this stub. */
2595 bfd_vma stub_offset;
2596
2597 /* Given the symbol's value and its section we can determine its final
2598 value when building the stubs (so the stub knows where to jump. */
2599 bfd_vma target_value;
2600 asection *target_section;
2601
2602 enum ppc_stub_type stub_type;
2603
2604 /* The symbol table entry, if any, that this was derived from. */
2605 struct ppc_link_hash_entry *h;
2606
2607 /* And the reloc addend that this was derived from. */
2608 bfd_vma addend;
2609
2610 /* Where this stub is being called from, or, in the case of combined
2611 stub sections, the first input section in the group. */
2612 asection *id_sec;
2613 };
2614
2615 struct ppc_branch_hash_entry {
2616
2617 /* Base hash table entry structure. */
2618 struct bfd_hash_entry root;
2619
2620 /* Offset within .branch_lt. */
2621 unsigned int offset;
2622
2623 /* Generation marker. */
2624 unsigned int iter;
2625 };
2626
2627 struct ppc_link_hash_entry
2628 {
2629 struct elf_link_hash_entry elf;
2630
2631 /* A pointer to the most recently used stub hash entry against this
2632 symbol. */
2633 struct ppc_stub_hash_entry *stub_cache;
2634
2635 /* Track dynamic relocs copied for this symbol. */
2636 struct ppc_dyn_relocs *dyn_relocs;
2637
2638 /* Link between function code and descriptor symbols. */
2639 struct elf_link_hash_entry *oh;
2640
2641 /* Flag function code and descriptor symbols. */
2642 unsigned int is_func:1;
2643 unsigned int is_func_descriptor:1;
2644 unsigned int is_entry:1;
2645
2646 /* Contexts in which symbol is used in the GOT (or TOC).
2647 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2648 corresponding relocs are encountered during check_relocs.
2649 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2650 indicate the corresponding GOT entry type is not needed.
2651 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2652 a TPREL one. We use a separate flag rather than setting TPREL
2653 just for convenience in distinguishing the two cases. */
2654 #define TLS_GD 1 /* GD reloc. */
2655 #define TLS_LD 2 /* LD reloc. */
2656 #define TLS_TPREL 4 /* TPREL reloc, => IE. */
2657 #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2658 #define TLS_TLS 16 /* Any TLS reloc. */
2659 #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2660 #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2661 char tls_mask;
2662 };
2663
2664 /* ppc64 ELF linker hash table. */
2665
2666 struct ppc_link_hash_table
2667 {
2668 struct elf_link_hash_table elf;
2669
2670 /* The stub hash table. */
2671 struct bfd_hash_table stub_hash_table;
2672
2673 /* Another hash table for plt_branch stubs. */
2674 struct bfd_hash_table branch_hash_table;
2675
2676 /* Linker stub bfd. */
2677 bfd *stub_bfd;
2678
2679 /* Linker call-backs. */
2680 asection * (*add_stub_section) PARAMS ((const char *, asection *));
2681 void (*layout_sections_again) PARAMS ((void));
2682
2683 /* Array to keep track of which stub sections have been created, and
2684 information on stub grouping. */
2685 struct map_stub {
2686 /* This is the section to which stubs in the group will be attached. */
2687 asection *link_sec;
2688 /* The stub section. */
2689 asection *stub_sec;
2690 } *stub_group;
2691
2692 /* Assorted information used by ppc64_elf_size_stubs. */
2693 int top_index;
2694 asection **input_list;
2695
2696 /* Short-cuts to get to dynamic linker sections. */
2697 asection *sgot;
2698 asection *srelgot;
2699 asection *splt;
2700 asection *srelplt;
2701 asection *sdynbss;
2702 asection *srelbss;
2703 asection *sglink;
2704 asection *sfpr;
2705 asection *sbrlt;
2706 asection *srelbrlt;
2707
2708 /* Short-cut to first output tls section. */
2709 asection *tls_sec;
2710
2711 /* Shortcut to .__tls_get_addr. */
2712 struct elf_link_hash_entry *tls_get_addr;
2713
2714 /* TLS local dynamic got entry handling. */
2715 union {
2716 bfd_signed_vma refcount;
2717 bfd_vma offset;
2718 } tlsld_got;
2719
2720 /* Set on error. */
2721 unsigned int stub_error;
2722
2723 /* Flag set when small branches are detected. Used to
2724 select suitable defaults for the stub group size. */
2725 unsigned int has_14bit_branch;
2726
2727 /* Set if we detect a reference undefined weak symbol. */
2728 unsigned int have_undefweak;
2729
2730 /* Incremented every time we size stubs. */
2731 unsigned int stub_iteration;
2732
2733 /* Small local sym to section mapping cache. */
2734 struct sym_sec_cache sym_sec;
2735 };
2736
2737 static struct bfd_hash_entry *stub_hash_newfunc
2738 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
2739 static struct bfd_hash_entry *branch_hash_newfunc
2740 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
2741 static struct bfd_hash_entry *link_hash_newfunc
2742 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
2743 static struct bfd_link_hash_table *ppc64_elf_link_hash_table_create
2744 PARAMS ((bfd *));
2745 static void ppc64_elf_link_hash_table_free
2746 PARAMS ((struct bfd_link_hash_table *));
2747 static char *ppc_stub_name
2748 PARAMS ((const asection *, const asection *,
2749 const struct ppc_link_hash_entry *, const Elf_Internal_Rela *));
2750 static struct ppc_stub_hash_entry *ppc_get_stub_entry
2751 PARAMS ((const asection *, const asection *, struct elf_link_hash_entry *,
2752 const Elf_Internal_Rela *, struct ppc_link_hash_table *));
2753 static struct ppc_stub_hash_entry *ppc_add_stub
2754 PARAMS ((const char *, asection *, struct ppc_link_hash_table *));
2755 static bfd_boolean create_linkage_sections
2756 PARAMS ((bfd *, struct bfd_link_info *));
2757 static bfd_boolean create_got_section
2758 PARAMS ((bfd *, struct bfd_link_info *));
2759 static bfd_boolean ppc64_elf_create_dynamic_sections
2760 PARAMS ((bfd *, struct bfd_link_info *));
2761 static void ppc64_elf_copy_indirect_symbol
2762 PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *,
2763 struct elf_link_hash_entry *));
2764 static bfd_boolean update_local_sym_info
2765 PARAMS ((bfd *, Elf_Internal_Shdr *, unsigned long, bfd_vma, int));
2766 static bfd_boolean update_plt_info
2767 PARAMS ((bfd *, struct ppc_link_hash_entry *, bfd_vma));
2768 static bfd_boolean ppc64_elf_check_relocs
2769 PARAMS ((bfd *, struct bfd_link_info *, asection *,
2770 const Elf_Internal_Rela *));
2771 static asection * ppc64_elf_gc_mark_hook
2772 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
2773 struct elf_link_hash_entry *, Elf_Internal_Sym *));
2774 static bfd_boolean ppc64_elf_gc_sweep_hook
2775 PARAMS ((bfd *, struct bfd_link_info *, asection *,
2776 const Elf_Internal_Rela *));
2777 static bfd_boolean func_desc_adjust
2778 PARAMS ((struct elf_link_hash_entry *, PTR));
2779 static bfd_boolean ppc64_elf_func_desc_adjust
2780 PARAMS ((bfd *, struct bfd_link_info *));
2781 static bfd_boolean ppc64_elf_adjust_dynamic_symbol
2782 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
2783 static void ppc64_elf_hide_symbol
2784 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
2785 static bfd_boolean get_sym_h
2786 PARAMS ((struct elf_link_hash_entry **, Elf_Internal_Sym **, asection **,
2787 char **, Elf_Internal_Sym **, unsigned long, bfd *));
2788 static int get_tls_mask
2789 PARAMS ((char **, Elf_Internal_Sym **, const Elf_Internal_Rela *, bfd *));
2790 static bfd_boolean allocate_dynrelocs
2791 PARAMS ((struct elf_link_hash_entry *, PTR));
2792 static bfd_boolean readonly_dynrelocs
2793 PARAMS ((struct elf_link_hash_entry *, PTR));
2794 static enum elf_reloc_type_class ppc64_elf_reloc_type_class
2795 PARAMS ((const Elf_Internal_Rela *));
2796 static bfd_boolean ppc64_elf_size_dynamic_sections
2797 PARAMS ((bfd *, struct bfd_link_info *));
2798 static enum ppc_stub_type ppc_type_of_stub
2799 PARAMS ((asection *, const Elf_Internal_Rela *,
2800 struct ppc_link_hash_entry **, bfd_vma));
2801 static bfd_byte *build_plt_stub
2802 PARAMS ((bfd *, bfd_byte *, int, int));
2803 static bfd_boolean ppc_build_one_stub
2804 PARAMS ((struct bfd_hash_entry *, PTR));
2805 static bfd_boolean ppc_size_one_stub
2806 PARAMS ((struct bfd_hash_entry *, PTR));
2807 static void group_sections
2808 PARAMS ((struct ppc_link_hash_table *, bfd_size_type, bfd_boolean));
2809 static bfd_boolean ppc64_elf_relocate_section
2810 PARAMS ((bfd *, struct bfd_link_info *info, bfd *, asection *, bfd_byte *,
2811 Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms,
2812 asection **));
2813 static bfd_boolean ppc64_elf_finish_dynamic_symbol
2814 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
2815 Elf_Internal_Sym *));
2816 static bfd_boolean ppc64_elf_finish_dynamic_sections
2817 PARAMS ((bfd *, struct bfd_link_info *));
2818
2819 /* Get the ppc64 ELF linker hash table from a link_info structure. */
2820
2821 #define ppc_hash_table(p) \
2822 ((struct ppc_link_hash_table *) ((p)->hash))
2823
2824 #define ppc_stub_hash_lookup(table, string, create, copy) \
2825 ((struct ppc_stub_hash_entry *) \
2826 bfd_hash_lookup ((table), (string), (create), (copy)))
2827
2828 #define ppc_branch_hash_lookup(table, string, create, copy) \
2829 ((struct ppc_branch_hash_entry *) \
2830 bfd_hash_lookup ((table), (string), (create), (copy)))
2831
2832 /* Create an entry in the stub hash table. */
2833
2834 static struct bfd_hash_entry *
2835 stub_hash_newfunc (entry, table, string)
2836 struct bfd_hash_entry *entry;
2837 struct bfd_hash_table *table;
2838 const char *string;
2839 {
2840 /* Allocate the structure if it has not already been allocated by a
2841 subclass. */
2842 if (entry == NULL)
2843 {
2844 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
2845 if (entry == NULL)
2846 return entry;
2847 }
2848
2849 /* Call the allocation method of the superclass. */
2850 entry = bfd_hash_newfunc (entry, table, string);
2851 if (entry != NULL)
2852 {
2853 struct ppc_stub_hash_entry *eh;
2854
2855 /* Initialize the local fields. */
2856 eh = (struct ppc_stub_hash_entry *) entry;
2857 eh->stub_sec = NULL;
2858 eh->stub_offset = 0;
2859 eh->target_value = 0;
2860 eh->target_section = NULL;
2861 eh->stub_type = ppc_stub_none;
2862 eh->h = NULL;
2863 eh->id_sec = NULL;
2864 }
2865
2866 return entry;
2867 }
2868
2869 /* Create an entry in the branch hash table. */
2870
2871 static struct bfd_hash_entry *
2872 branch_hash_newfunc (entry, table, string)
2873 struct bfd_hash_entry *entry;
2874 struct bfd_hash_table *table;
2875 const char *string;
2876 {
2877 /* Allocate the structure if it has not already been allocated by a
2878 subclass. */
2879 if (entry == NULL)
2880 {
2881 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
2882 if (entry == NULL)
2883 return entry;
2884 }
2885
2886 /* Call the allocation method of the superclass. */
2887 entry = bfd_hash_newfunc (entry, table, string);
2888 if (entry != NULL)
2889 {
2890 struct ppc_branch_hash_entry *eh;
2891
2892 /* Initialize the local fields. */
2893 eh = (struct ppc_branch_hash_entry *) entry;
2894 eh->offset = 0;
2895 eh->iter = 0;
2896 }
2897
2898 return entry;
2899 }
2900
2901 /* Create an entry in a ppc64 ELF linker hash table. */
2902
2903 static struct bfd_hash_entry *
2904 link_hash_newfunc (entry, table, string)
2905 struct bfd_hash_entry *entry;
2906 struct bfd_hash_table *table;
2907 const char *string;
2908 {
2909 /* Allocate the structure if it has not already been allocated by a
2910 subclass. */
2911 if (entry == NULL)
2912 {
2913 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
2914 if (entry == NULL)
2915 return entry;
2916 }
2917
2918 /* Call the allocation method of the superclass. */
2919 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2920 if (entry != NULL)
2921 {
2922 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
2923
2924 eh->stub_cache = NULL;
2925 eh->dyn_relocs = NULL;
2926 eh->oh = NULL;
2927 eh->is_func = 0;
2928 eh->is_func_descriptor = 0;
2929 eh->is_entry = 0;
2930 eh->tls_mask = 0;
2931 }
2932
2933 return entry;
2934 }
2935
2936 /* Create a ppc64 ELF linker hash table. */
2937
2938 static struct bfd_link_hash_table *
2939 ppc64_elf_link_hash_table_create (abfd)
2940 bfd *abfd;
2941 {
2942 struct ppc_link_hash_table *htab;
2943 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
2944
2945 htab = (struct ppc_link_hash_table *) bfd_malloc (amt);
2946 if (htab == NULL)
2947 return NULL;
2948
2949 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
2950 {
2951 free (htab);
2952 return NULL;
2953 }
2954
2955 /* Init the stub hash table too. */
2956 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
2957 return NULL;
2958
2959 /* And the branch hash table. */
2960 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
2961 return NULL;
2962
2963 htab->stub_bfd = NULL;
2964 htab->add_stub_section = NULL;
2965 htab->layout_sections_again = NULL;
2966 htab->stub_group = NULL;
2967 htab->sgot = NULL;
2968 htab->srelgot = NULL;
2969 htab->splt = NULL;
2970 htab->srelplt = NULL;
2971 htab->sdynbss = NULL;
2972 htab->srelbss = NULL;
2973 htab->sglink = NULL;
2974 htab->sfpr = NULL;
2975 htab->sbrlt = NULL;
2976 htab->srelbrlt = NULL;
2977 htab->tls_sec = NULL;
2978 htab->tls_get_addr = NULL;
2979 htab->tlsld_got.refcount = 0;
2980 htab->stub_error = 0;
2981 htab->has_14bit_branch = 0;
2982 htab->have_undefweak = 0;
2983 htab->stub_iteration = 0;
2984 htab->sym_sec.abfd = NULL;
2985 /* Initializing two fields of the union is just cosmetic. We really
2986 only care about glist, but when compiled on a 32-bit host the
2987 bfd_vma fields are larger. Setting the bfd_vma to zero makes
2988 debugger inspection of these fields look nicer. */
2989 htab->elf.init_refcount.refcount = 0;
2990 htab->elf.init_refcount.glist = NULL;
2991 htab->elf.init_offset.offset = 0;
2992 htab->elf.init_offset.glist = NULL;
2993
2994 return &htab->elf.root;
2995 }
2996
2997 /* Free the derived linker hash table. */
2998
2999 static void
3000 ppc64_elf_link_hash_table_free (hash)
3001 struct bfd_link_hash_table *hash;
3002 {
3003 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3004
3005 bfd_hash_table_free (&ret->stub_hash_table);
3006 bfd_hash_table_free (&ret->branch_hash_table);
3007 _bfd_generic_link_hash_table_free (hash);
3008 }
3009
3010 /* Build a name for an entry in the stub hash table. */
3011
3012 static char *
3013 ppc_stub_name (input_section, sym_sec, h, rel)
3014 const asection *input_section;
3015 const asection *sym_sec;
3016 const struct ppc_link_hash_entry *h;
3017 const Elf_Internal_Rela *rel;
3018 {
3019 char *stub_name;
3020 bfd_size_type len;
3021
3022 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3023 offsets from a sym as a branch target? In fact, we could
3024 probably assume the addend is always zero. */
3025 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3026
3027 if (h)
3028 {
3029 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3030 stub_name = bfd_malloc (len);
3031 if (stub_name != NULL)
3032 {
3033 sprintf (stub_name, "%08x_%s+%x",
3034 input_section->id & 0xffffffff,
3035 h->elf.root.root.string,
3036 (int) rel->r_addend & 0xffffffff);
3037 }
3038 }
3039 else
3040 {
3041 len = 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1;
3042 stub_name = bfd_malloc (len);
3043 if (stub_name != NULL)
3044 {
3045 sprintf (stub_name, "%08x_%x:%x+%x",
3046 input_section->id & 0xffffffff,
3047 sym_sec->id & 0xffffffff,
3048 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3049 (int) rel->r_addend & 0xffffffff);
3050 }
3051 }
3052 return stub_name;
3053 }
3054
3055 /* Look up an entry in the stub hash. Stub entries are cached because
3056 creating the stub name takes a bit of time. */
3057
3058 static struct ppc_stub_hash_entry *
3059 ppc_get_stub_entry (input_section, sym_sec, hash, rel, htab)
3060 const asection *input_section;
3061 const asection *sym_sec;
3062 struct elf_link_hash_entry *hash;
3063 const Elf_Internal_Rela *rel;
3064 struct ppc_link_hash_table *htab;
3065 {
3066 struct ppc_stub_hash_entry *stub_entry;
3067 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3068 const asection *id_sec;
3069
3070 /* If this input section is part of a group of sections sharing one
3071 stub section, then use the id of the first section in the group.
3072 Stub names need to include a section id, as there may well be
3073 more than one stub used to reach say, printf, and we need to
3074 distinguish between them. */
3075 id_sec = htab->stub_group[input_section->id].link_sec;
3076
3077 if (h != NULL && h->stub_cache != NULL
3078 && h->stub_cache->h == h
3079 && h->stub_cache->id_sec == id_sec)
3080 {
3081 stub_entry = h->stub_cache;
3082 }
3083 else
3084 {
3085 char *stub_name;
3086
3087 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3088 if (stub_name == NULL)
3089 return NULL;
3090
3091 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
3092 stub_name, FALSE, FALSE);
3093 if (h != NULL)
3094 h->stub_cache = stub_entry;
3095
3096 free (stub_name);
3097 }
3098
3099 return stub_entry;
3100 }
3101
3102 /* Add a new stub entry to the stub hash. Not all fields of the new
3103 stub entry are initialised. */
3104
3105 static struct ppc_stub_hash_entry *
3106 ppc_add_stub (stub_name, section, htab)
3107 const char *stub_name;
3108 asection *section;
3109 struct ppc_link_hash_table *htab;
3110 {
3111 asection *link_sec;
3112 asection *stub_sec;
3113 struct ppc_stub_hash_entry *stub_entry;
3114
3115 link_sec = htab->stub_group[section->id].link_sec;
3116 stub_sec = htab->stub_group[section->id].stub_sec;
3117 if (stub_sec == NULL)
3118 {
3119 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3120 if (stub_sec == NULL)
3121 {
3122 size_t namelen;
3123 bfd_size_type len;
3124 char *s_name;
3125
3126 namelen = strlen (link_sec->name);
3127 len = namelen + sizeof (STUB_SUFFIX);
3128 s_name = bfd_alloc (htab->stub_bfd, len);
3129 if (s_name == NULL)
3130 return NULL;
3131
3132 memcpy (s_name, link_sec->name, namelen);
3133 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
3134 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3135 if (stub_sec == NULL)
3136 return NULL;
3137 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3138 }
3139 htab->stub_group[section->id].stub_sec = stub_sec;
3140 }
3141
3142 /* Enter this entry into the linker stub hash table. */
3143 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
3144 TRUE, FALSE);
3145 if (stub_entry == NULL)
3146 {
3147 (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
3148 bfd_archive_filename (section->owner),
3149 stub_name);
3150 return NULL;
3151 }
3152
3153 stub_entry->stub_sec = stub_sec;
3154 stub_entry->stub_offset = 0;
3155 stub_entry->id_sec = link_sec;
3156 return stub_entry;
3157 }
3158
3159 /* Create sections for linker generated code. */
3160
3161 static bfd_boolean
3162 create_linkage_sections (dynobj, info)
3163 bfd *dynobj;
3164 struct bfd_link_info *info;
3165 {
3166 struct ppc_link_hash_table *htab;
3167 flagword flags;
3168
3169 htab = ppc_hash_table (info);
3170
3171 /* Create .sfpr for code to save and restore fp regs. */
3172 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3173 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3174 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
3175 if (htab->sfpr == NULL
3176 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3177 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
3178 return FALSE;
3179
3180 /* Create .glink for lazy dynamic linking support. */
3181 htab->sglink = bfd_make_section_anyway (dynobj, ".glink");
3182 if (htab->sglink == NULL
3183 || ! bfd_set_section_flags (dynobj, htab->sglink, flags)
3184 || ! bfd_set_section_alignment (dynobj, htab->sglink, 2))
3185 return FALSE;
3186
3187 /* Create .branch_lt for plt_branch stubs. */
3188 flags = (SEC_ALLOC | SEC_LOAD
3189 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3190 htab->sbrlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3191 if (htab->sbrlt == NULL
3192 || ! bfd_set_section_flags (dynobj, htab->sbrlt, flags)
3193 || ! bfd_set_section_alignment (dynobj, htab->sbrlt, 3))
3194 return FALSE;
3195
3196 if (info->shared)
3197 {
3198 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3199 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3200 htab->srelbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
3201 if (!htab->srelbrlt
3202 || ! bfd_set_section_flags (dynobj, htab->srelbrlt, flags)
3203 || ! bfd_set_section_alignment (dynobj, htab->srelbrlt, 3))
3204 return FALSE;
3205 }
3206 return TRUE;
3207 }
3208
3209 /* Create .got and .rela.got sections in DYNOBJ, and set up
3210 shortcuts to them in our hash table. */
3211
3212 static bfd_boolean
3213 create_got_section (dynobj, info)
3214 bfd *dynobj;
3215 struct bfd_link_info *info;
3216 {
3217 struct ppc_link_hash_table *htab;
3218
3219 if (! _bfd_elf_create_got_section (dynobj, info))
3220 return FALSE;
3221
3222 htab = ppc_hash_table (info);
3223 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
3224 if (!htab->sgot)
3225 abort ();
3226
3227 htab->srelgot = bfd_make_section (dynobj, ".rela.got");
3228 if (!htab->srelgot
3229 || ! bfd_set_section_flags (dynobj, htab->srelgot,
3230 (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
3231 | SEC_IN_MEMORY | SEC_LINKER_CREATED
3232 | SEC_READONLY))
3233 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 3))
3234 return FALSE;
3235 return TRUE;
3236 }
3237
3238 /* Create the dynamic sections, and set up shortcuts. */
3239
3240 static bfd_boolean
3241 ppc64_elf_create_dynamic_sections (dynobj, info)
3242 bfd *dynobj;
3243 struct bfd_link_info *info;
3244 {
3245 struct ppc_link_hash_table *htab;
3246
3247 htab = ppc_hash_table (info);
3248 if (!htab->sgot && !create_got_section (dynobj, info))
3249 return FALSE;
3250
3251 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
3252 return FALSE;
3253
3254 htab->splt = bfd_get_section_by_name (dynobj, ".plt");
3255 htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3256 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
3257 if (!info->shared)
3258 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
3259
3260 if (!htab->splt || !htab->srelplt || !htab->sdynbss
3261 || (!info->shared && !htab->srelbss))
3262 abort ();
3263
3264 return TRUE;
3265 }
3266
3267 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3268
3269 static void
3270 ppc64_elf_copy_indirect_symbol (bed, dir, ind)
3271 struct elf_backend_data *bed ATTRIBUTE_UNUSED;
3272 struct elf_link_hash_entry *dir, *ind;
3273 {
3274 struct ppc_link_hash_entry *edir, *eind;
3275
3276 edir = (struct ppc_link_hash_entry *) dir;
3277 eind = (struct ppc_link_hash_entry *) ind;
3278
3279 /* Copy over any dynamic relocs we may have on the indirect sym. */
3280 if (eind->dyn_relocs != NULL)
3281 {
3282 if (edir->dyn_relocs != NULL)
3283 {
3284 struct ppc_dyn_relocs **pp;
3285 struct ppc_dyn_relocs *p;
3286
3287 if (eind->elf.root.type == bfd_link_hash_indirect)
3288 abort ();
3289
3290 /* Add reloc counts against the weak sym to the strong sym
3291 list. Merge any entries against the same section. */
3292 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3293 {
3294 struct ppc_dyn_relocs *q;
3295
3296 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3297 if (q->sec == p->sec)
3298 {
3299 q->pc_count += p->pc_count;
3300 q->count += p->count;
3301 *pp = p->next;
3302 break;
3303 }
3304 if (q == NULL)
3305 pp = &p->next;
3306 }
3307 *pp = edir->dyn_relocs;
3308 }
3309
3310 edir->dyn_relocs = eind->dyn_relocs;
3311 eind->dyn_relocs = NULL;
3312 }
3313
3314 edir->is_func |= eind->is_func;
3315 edir->is_func_descriptor |= eind->is_func_descriptor;
3316 edir->is_entry |= eind->is_entry;
3317 edir->tls_mask |= eind->tls_mask;
3318
3319 /* Copy down any references that we may have already seen to the
3320 symbol which just became indirect. */
3321 edir->elf.elf_link_hash_flags |=
3322 (eind->elf.elf_link_hash_flags
3323 & (ELF_LINK_HASH_REF_DYNAMIC
3324 | ELF_LINK_HASH_REF_REGULAR
3325 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
3326 | ELF_LINK_NON_GOT_REF));
3327
3328 /* If we were called to copy over info for a weak sym, that's all. */
3329 if (eind->elf.root.type != bfd_link_hash_indirect)
3330 return;
3331
3332 /* Copy over got entries. */
3333 if (eind->elf.got.glist != NULL)
3334 {
3335 if (edir->elf.got.glist != NULL)
3336 {
3337 struct got_entry **entp;
3338 struct got_entry *ent;
3339
3340 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3341 {
3342 struct got_entry *dent;
3343
3344 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3345 if (dent->addend == ent->addend
3346 && dent->tls_type == ent->tls_type)
3347 {
3348 dent->got.refcount += ent->got.refcount;
3349 *entp = ent->next;
3350 break;
3351 }
3352 if (dent == NULL)
3353 entp = &ent->next;
3354 }
3355 *entp = edir->elf.got.glist;
3356 }
3357
3358 edir->elf.got.glist = eind->elf.got.glist;
3359 eind->elf.got.glist = NULL;
3360 }
3361
3362 /* And plt entries. */
3363 if (eind->elf.plt.plist != NULL)
3364 {
3365 if (edir->elf.plt.plist != NULL)
3366 {
3367 struct plt_entry **entp;
3368 struct plt_entry *ent;
3369
3370 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3371 {
3372 struct plt_entry *dent;
3373
3374 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3375 if (dent->addend == ent->addend)
3376 {
3377 dent->plt.refcount += ent->plt.refcount;
3378 *entp = ent->next;
3379 break;
3380 }
3381 if (dent == NULL)
3382 entp = &ent->next;
3383 }
3384 *entp = edir->elf.plt.plist;
3385 }
3386
3387 edir->elf.plt.plist = eind->elf.plt.plist;
3388 eind->elf.plt.plist = NULL;
3389 }
3390
3391 if (edir->elf.dynindx == -1)
3392 {
3393 edir->elf.dynindx = eind->elf.dynindx;
3394 edir->elf.dynstr_index = eind->elf.dynstr_index;
3395 eind->elf.dynindx = -1;
3396 eind->elf.dynstr_index = 0;
3397 }
3398 else
3399 BFD_ASSERT (eind->elf.dynindx == -1);
3400 }
3401
3402 /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3403 symbols undefined on the command-line. */
3404
3405 bfd_boolean
3406 ppc64_elf_mark_entry_syms (info)
3407 struct bfd_link_info *info;
3408 {
3409 struct ppc_link_hash_table *htab;
3410 struct bfd_sym_chain *sym;
3411
3412 htab = ppc_hash_table (info);
3413 for (sym = info->gc_sym_list; sym; sym = sym->next)
3414 {
3415 struct elf_link_hash_entry *h;
3416
3417 h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
3418 if (h != NULL)
3419 ((struct ppc_link_hash_entry *) h)->is_entry = 1;
3420 }
3421 return TRUE;
3422 }
3423
3424 static bfd_boolean
3425 update_local_sym_info (abfd, symtab_hdr, r_symndx, r_addend, tls_type)
3426 bfd *abfd;
3427 Elf_Internal_Shdr *symtab_hdr;
3428 unsigned long r_symndx;
3429 bfd_vma r_addend;
3430 int tls_type;
3431 {
3432 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
3433 char *local_got_tls_masks;
3434
3435 if (local_got_ents == NULL)
3436 {
3437 bfd_size_type size = symtab_hdr->sh_info;
3438
3439 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
3440 local_got_ents = (struct got_entry **) bfd_zalloc (abfd, size);
3441 if (local_got_ents == NULL)
3442 return FALSE;
3443 elf_local_got_ents (abfd) = local_got_ents;
3444 }
3445
3446 if ((tls_type & TLS_EXPLICIT) == 0)
3447 {
3448 struct got_entry *ent;
3449
3450 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
3451 if (ent->addend == r_addend && ent->tls_type == tls_type)
3452 break;
3453 if (ent == NULL)
3454 {
3455 bfd_size_type amt = sizeof (*ent);
3456 ent = (struct got_entry *) bfd_alloc (abfd, amt);
3457 if (ent == NULL)
3458 return FALSE;
3459 ent->next = local_got_ents[r_symndx];
3460 ent->addend = r_addend;
3461 ent->tls_type = tls_type;
3462 ent->got.refcount = 0;
3463 local_got_ents[r_symndx] = ent;
3464 }
3465 ent->got.refcount += 1;
3466 }
3467
3468 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
3469 local_got_tls_masks[r_symndx] |= tls_type;
3470 return TRUE;
3471 }
3472
3473 static bfd_boolean
3474 update_plt_info (abfd, eh, addend)
3475 bfd *abfd;
3476 struct ppc_link_hash_entry *eh;
3477 bfd_vma addend;
3478 {
3479 struct plt_entry *ent;
3480
3481 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
3482 if (ent->addend == addend)
3483 break;
3484 if (ent == NULL)
3485 {
3486 bfd_size_type amt = sizeof (*ent);
3487 ent = (struct plt_entry *) bfd_alloc (abfd, amt);
3488 if (ent == NULL)
3489 return FALSE;
3490 ent->next = eh->elf.plt.plist;
3491 ent->addend = addend;
3492 ent->plt.refcount = 0;
3493 eh->elf.plt.plist = ent;
3494 }
3495 ent->plt.refcount += 1;
3496 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3497 eh->is_func = 1;
3498 return TRUE;
3499 }
3500
3501 /* Look through the relocs for a section during the first phase, and
3502 calculate needed space in the global offset table, procedure
3503 linkage table, and dynamic reloc sections. */
3504
3505 static bfd_boolean
3506 ppc64_elf_check_relocs (abfd, info, sec, relocs)
3507 bfd *abfd;
3508 struct bfd_link_info *info;
3509 asection *sec;
3510 const Elf_Internal_Rela *relocs;
3511 {
3512 struct ppc_link_hash_table *htab;
3513 Elf_Internal_Shdr *symtab_hdr;
3514 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3515 const Elf_Internal_Rela *rel;
3516 const Elf_Internal_Rela *rel_end;
3517 asection *sreloc;
3518 asection **opd_sym_map;
3519
3520 if (info->relocateable)
3521 return TRUE;
3522
3523 htab = ppc_hash_table (info);
3524 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3525
3526 sym_hashes = elf_sym_hashes (abfd);
3527 sym_hashes_end = (sym_hashes
3528 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
3529 - symtab_hdr->sh_info);
3530
3531 sreloc = NULL;
3532 opd_sym_map = NULL;
3533 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
3534 {
3535 /* Garbage collection needs some extra help with .opd sections.
3536 We don't want to necessarily keep everything referenced by
3537 relocs in .opd, as that would keep all functions. Instead,
3538 if we reference an .opd symbol (a function descriptor), we
3539 want to keep the function code symbol's section. This is
3540 easy for global symbols, but for local syms we need to keep
3541 information about the associated function section. Later, if
3542 edit_opd deletes entries, we'll use this array to adjust
3543 local syms in .opd. */
3544 union opd_info {
3545 asection *func_section;
3546 long entry_adjust;
3547 };
3548 bfd_size_type amt;
3549
3550 amt = sec->_raw_size * sizeof (union opd_info) / 24;
3551 opd_sym_map = (asection **) bfd_zalloc (abfd, amt);
3552 if (opd_sym_map == NULL)
3553 return FALSE;
3554 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
3555 }
3556
3557 if (htab->elf.dynobj == NULL)
3558 htab->elf.dynobj = abfd;
3559 if (htab->sfpr == NULL
3560 && !create_linkage_sections (htab->elf.dynobj, info))
3561 return FALSE;
3562
3563 rel_end = relocs + sec->reloc_count;
3564 for (rel = relocs; rel < rel_end; rel++)
3565 {
3566 unsigned long r_symndx;
3567 struct elf_link_hash_entry *h;
3568 enum elf_ppc64_reloc_type r_type;
3569 int tls_type = 0;
3570
3571 r_symndx = ELF64_R_SYM (rel->r_info);
3572 if (r_symndx < symtab_hdr->sh_info)
3573 h = NULL;
3574 else
3575 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3576
3577 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
3578 switch (r_type)
3579 {
3580 case R_PPC64_GOT_TLSLD16:
3581 case R_PPC64_GOT_TLSLD16_LO:
3582 case R_PPC64_GOT_TLSLD16_HI:
3583 case R_PPC64_GOT_TLSLD16_HA:
3584 htab->tlsld_got.refcount += 1;
3585 tls_type = TLS_TLS | TLS_LD;
3586 goto dogottls;
3587
3588 case R_PPC64_GOT_TLSGD16:
3589 case R_PPC64_GOT_TLSGD16_LO:
3590 case R_PPC64_GOT_TLSGD16_HI:
3591 case R_PPC64_GOT_TLSGD16_HA:
3592 tls_type = TLS_TLS | TLS_GD;
3593 goto dogottls;
3594
3595 case R_PPC64_GOT_TPREL16_DS:
3596 case R_PPC64_GOT_TPREL16_LO_DS:
3597 case R_PPC64_GOT_TPREL16_HI:
3598 case R_PPC64_GOT_TPREL16_HA:
3599 if (info->shared)
3600 info->flags |= DF_STATIC_TLS;
3601 tls_type = TLS_TLS | TLS_TPREL;
3602 goto dogottls;
3603
3604 case R_PPC64_GOT_DTPREL16_DS:
3605 case R_PPC64_GOT_DTPREL16_LO_DS:
3606 case R_PPC64_GOT_DTPREL16_HI:
3607 case R_PPC64_GOT_DTPREL16_HA:
3608 tls_type = TLS_TLS | TLS_DTPREL;
3609 dogottls:
3610 sec->has_tls_reloc = 1;
3611 /* Fall thru */
3612
3613 case R_PPC64_GOT16:
3614 case R_PPC64_GOT16_DS:
3615 case R_PPC64_GOT16_HA:
3616 case R_PPC64_GOT16_HI:
3617 case R_PPC64_GOT16_LO:
3618 case R_PPC64_GOT16_LO_DS:
3619 /* This symbol requires a global offset table entry. */
3620 if (htab->sgot == NULL
3621 && !create_got_section (htab->elf.dynobj, info))
3622 return FALSE;
3623
3624 if (h != NULL)
3625 {
3626 struct ppc_link_hash_entry *eh;
3627 struct got_entry *ent;
3628
3629 eh = (struct ppc_link_hash_entry *) h;
3630 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
3631 if (ent->addend == rel->r_addend
3632 && ent->tls_type == tls_type)
3633 break;
3634 if (ent == NULL)
3635 {
3636 bfd_size_type amt = sizeof (*ent);
3637 ent = (struct got_entry *) bfd_alloc (abfd, amt);
3638 if (ent == NULL)
3639 return FALSE;
3640 ent->next = eh->elf.got.glist;
3641 ent->addend = rel->r_addend;
3642 ent->tls_type = tls_type;
3643 ent->got.refcount = 0;
3644 eh->elf.got.glist = ent;
3645 }
3646 ent->got.refcount += 1;
3647 eh->tls_mask |= tls_type;
3648 }
3649 else
3650 /* This is a global offset table entry for a local symbol. */
3651 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3652 rel->r_addend, tls_type))
3653 return FALSE;
3654 break;
3655
3656 case R_PPC64_PLT16_HA:
3657 case R_PPC64_PLT16_HI:
3658 case R_PPC64_PLT16_LO:
3659 case R_PPC64_PLT32:
3660 case R_PPC64_PLT64:
3661 /* This symbol requires a procedure linkage table entry. We
3662 actually build the entry in adjust_dynamic_symbol,
3663 because this might be a case of linking PIC code without
3664 linking in any dynamic objects, in which case we don't
3665 need to generate a procedure linkage table after all. */
3666 if (h == NULL)
3667 {
3668 /* It does not make sense to have a procedure linkage
3669 table entry for a local symbol. */
3670 bfd_set_error (bfd_error_bad_value);
3671 return FALSE;
3672 }
3673 else
3674 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3675 rel->r_addend))
3676 return FALSE;
3677 break;
3678
3679 /* The following relocations don't need to propagate the
3680 relocation if linking a shared object since they are
3681 section relative. */
3682 case R_PPC64_SECTOFF:
3683 case R_PPC64_SECTOFF_LO:
3684 case R_PPC64_SECTOFF_HI:
3685 case R_PPC64_SECTOFF_HA:
3686 case R_PPC64_SECTOFF_DS:
3687 case R_PPC64_SECTOFF_LO_DS:
3688 case R_PPC64_TOC16:
3689 case R_PPC64_TOC16_LO:
3690 case R_PPC64_TOC16_HI:
3691 case R_PPC64_TOC16_HA:
3692 case R_PPC64_TOC16_DS:
3693 case R_PPC64_TOC16_LO_DS:
3694 case R_PPC64_DTPREL16:
3695 case R_PPC64_DTPREL16_LO:
3696 case R_PPC64_DTPREL16_HI:
3697 case R_PPC64_DTPREL16_HA:
3698 case R_PPC64_DTPREL16_DS:
3699 case R_PPC64_DTPREL16_LO_DS:
3700 case R_PPC64_DTPREL16_HIGHER:
3701 case R_PPC64_DTPREL16_HIGHERA:
3702 case R_PPC64_DTPREL16_HIGHEST:
3703 case R_PPC64_DTPREL16_HIGHESTA:
3704 break;
3705
3706 /* This relocation describes the C++ object vtable hierarchy.
3707 Reconstruct it for later use during GC. */
3708 case R_PPC64_GNU_VTINHERIT:
3709 if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3710 return FALSE;
3711 break;
3712
3713 /* This relocation describes which C++ vtable entries are actually
3714 used. Record for later use during GC. */
3715 case R_PPC64_GNU_VTENTRY:
3716 if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3717 return FALSE;
3718 break;
3719
3720 case R_PPC64_REL14:
3721 case R_PPC64_REL14_BRTAKEN:
3722 case R_PPC64_REL14_BRNTAKEN:
3723 htab->has_14bit_branch = 1;
3724 /* Fall through. */
3725
3726 case R_PPC64_REL24:
3727 if (h != NULL
3728 && h->root.root.string[0] == '.'
3729 && h->root.root.string[1] != 0)
3730 {
3731 /* We may need a .plt entry if the function this reloc
3732 refers to is in a shared lib. */
3733 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3734 rel->r_addend))
3735 return FALSE;
3736 if (h == htab->tls_get_addr)
3737 sec->has_tls_reloc = 1;
3738 else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15)
3739 == 0)
3740 && (h->root.root.string[15] == 0
3741 || h->root.root.string[15] == '@'))
3742 {
3743 htab->tls_get_addr = h;
3744 sec->has_tls_reloc = 1;
3745 }
3746 }
3747 break;
3748
3749 case R_PPC64_TPREL64:
3750 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
3751 if (info->shared)
3752 info->flags |= DF_STATIC_TLS;
3753 goto dotlstoc;
3754
3755 case R_PPC64_DTPMOD64:
3756 if (rel + 1 < rel_end
3757 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
3758 && rel[1].r_offset == rel->r_offset + 8)
3759 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
3760 else
3761 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
3762 goto dotlstoc;
3763
3764 case R_PPC64_DTPREL64:
3765 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
3766 if (rel != relocs
3767 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
3768 && rel[-1].r_offset == rel->r_offset - 8)
3769 /* This is the second reloc of a dtpmod, dtprel pair.
3770 Don't mark with TLS_DTPREL. */
3771 goto dodyn;
3772
3773 dotlstoc:
3774 sec->has_tls_reloc = 1;
3775 if (h != NULL)
3776 {
3777 struct ppc_link_hash_entry *eh;
3778 eh = (struct ppc_link_hash_entry *) h;
3779 eh->tls_mask |= tls_type;
3780 }
3781 else
3782 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3783 rel->r_addend, tls_type))
3784 return FALSE;
3785
3786 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3787 {
3788 /* One extra to simplify get_tls_mask. */
3789 bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1;
3790 ppc64_elf_section_data (sec)->t_symndx
3791 = (unsigned *) bfd_zalloc (abfd, amt);
3792 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3793 return FALSE;
3794 }
3795 BFD_ASSERT (rel->r_offset % 8 == 0);
3796 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
3797
3798 /* Mark the second slot of a GD or LD entry.
3799 -1 to indicate GD and -2 to indicate LD. */
3800 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3801 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
3802 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3803 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
3804 goto dodyn;
3805
3806 case R_PPC64_TPREL16:
3807 case R_PPC64_TPREL16_LO:
3808 case R_PPC64_TPREL16_HI:
3809 case R_PPC64_TPREL16_HA:
3810 case R_PPC64_TPREL16_DS:
3811 case R_PPC64_TPREL16_LO_DS:
3812 case R_PPC64_TPREL16_HIGHER:
3813 case R_PPC64_TPREL16_HIGHERA:
3814 case R_PPC64_TPREL16_HIGHEST:
3815 case R_PPC64_TPREL16_HIGHESTA:
3816 if (info->shared)
3817 {
3818 info->flags |= DF_STATIC_TLS;
3819 goto dodyn;
3820 }
3821 break;
3822
3823 case R_PPC64_ADDR64:
3824 if (opd_sym_map != NULL
3825 && h != NULL
3826 && h->root.root.string[0] == '.'
3827 && h->root.root.string[1] != 0)
3828 {
3829 struct elf_link_hash_entry *fdh;
3830
3831 fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1,
3832 FALSE, FALSE, FALSE);
3833 if (fdh != NULL)
3834 {
3835 ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1;
3836 ((struct ppc_link_hash_entry *) fdh)->oh = h;
3837 ((struct ppc_link_hash_entry *) h)->is_func = 1;
3838 ((struct ppc_link_hash_entry *) h)->oh = fdh;
3839 }
3840 }
3841 if (opd_sym_map != NULL
3842 && h == NULL
3843 && rel + 1 < rel_end
3844 && ((enum elf_ppc64_reloc_type) ELF64_R_TYPE ((rel + 1)->r_info)
3845 == R_PPC64_TOC))
3846 {
3847 asection *s;
3848
3849 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3850 r_symndx);
3851 if (s == NULL)
3852 return FALSE;
3853 else if (s != sec)
3854 opd_sym_map[rel->r_offset / 24] = s;
3855 }
3856 /* Fall through. */
3857
3858 case R_PPC64_REL30:
3859 case R_PPC64_REL32:
3860 case R_PPC64_REL64:
3861 case R_PPC64_ADDR14:
3862 case R_PPC64_ADDR14_BRNTAKEN:
3863 case R_PPC64_ADDR14_BRTAKEN:
3864 case R_PPC64_ADDR16:
3865 case R_PPC64_ADDR16_DS:
3866 case R_PPC64_ADDR16_HA:
3867 case R_PPC64_ADDR16_HI:
3868 case R_PPC64_ADDR16_HIGHER:
3869 case R_PPC64_ADDR16_HIGHERA:
3870 case R_PPC64_ADDR16_HIGHEST:
3871 case R_PPC64_ADDR16_HIGHESTA:
3872 case R_PPC64_ADDR16_LO:
3873 case R_PPC64_ADDR16_LO_DS:
3874 case R_PPC64_ADDR24:
3875 case R_PPC64_ADDR32:
3876 case R_PPC64_UADDR16:
3877 case R_PPC64_UADDR32:
3878 case R_PPC64_UADDR64:
3879 case R_PPC64_TOC:
3880 /* Don't propagate .opd relocs. */
3881 if (NO_OPD_RELOCS && opd_sym_map != NULL)
3882 break;
3883
3884 /* Don't propagate relocs that the dynamic linker won't relocate. */
3885 if ((sec->flags & SEC_ALLOC) == 0)
3886 break;
3887
3888 /* If we are creating a shared library, and this is a reloc
3889 against a global symbol, or a non PC relative reloc
3890 against a local symbol, then we need to copy the reloc
3891 into the shared library. However, if we are linking with
3892 -Bsymbolic, we do not need to copy a reloc against a
3893 global symbol which is defined in an object we are
3894 including in the link (i.e., DEF_REGULAR is set). At
3895 this point we have not seen all the input files, so it is
3896 possible that DEF_REGULAR is not set now but will be set
3897 later (it is never cleared). In case of a weak definition,
3898 DEF_REGULAR may be cleared later by a strong definition in
3899 a shared library. We account for that possibility below by
3900 storing information in the dyn_relocs field of the hash
3901 table entry. A similar situation occurs when creating
3902 shared libraries and symbol visibility changes render the
3903 symbol local.
3904
3905 If on the other hand, we are creating an executable, we
3906 may need to keep relocations for symbols satisfied by a
3907 dynamic library if we manage to avoid copy relocs for the
3908 symbol. */
3909 dodyn:
3910 if ((info->shared
3911 && (MUST_BE_DYN_RELOC (r_type)
3912 || (h != NULL
3913 && (! info->symbolic
3914 || h->root.type == bfd_link_hash_defweak
3915 || (h->elf_link_hash_flags
3916 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
3917 || (ELIMINATE_COPY_RELOCS
3918 && !info->shared
3919 && h != NULL
3920 && (h->root.type == bfd_link_hash_defweak
3921 || (h->elf_link_hash_flags
3922 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
3923 {
3924 struct ppc_dyn_relocs *p;
3925 struct ppc_dyn_relocs **head;
3926
3927 /* We must copy these reloc types into the output file.
3928 Create a reloc section in dynobj and make room for
3929 this reloc. */
3930 if (sreloc == NULL)
3931 {
3932 const char *name;
3933 bfd *dynobj;
3934
3935 name = (bfd_elf_string_from_elf_section
3936 (abfd,
3937 elf_elfheader (abfd)->e_shstrndx,
3938 elf_section_data (sec)->rel_hdr.sh_name));
3939 if (name == NULL)
3940 return FALSE;
3941
3942 if (strncmp (name, ".rela", 5) != 0
3943 || strcmp (bfd_get_section_name (abfd, sec),
3944 name + 5) != 0)
3945 {
3946 (*_bfd_error_handler)
3947 (_("%s: bad relocation section name `%s\'"),
3948 bfd_archive_filename (abfd), name);
3949 bfd_set_error (bfd_error_bad_value);
3950 }
3951
3952 dynobj = htab->elf.dynobj;
3953 sreloc = bfd_get_section_by_name (dynobj, name);
3954 if (sreloc == NULL)
3955 {
3956 flagword flags;
3957
3958 sreloc = bfd_make_section (dynobj, name);
3959 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3960 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3961 if ((sec->flags & SEC_ALLOC) != 0)
3962 flags |= SEC_ALLOC | SEC_LOAD;
3963 if (sreloc == NULL
3964 || ! bfd_set_section_flags (dynobj, sreloc, flags)
3965 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
3966 return FALSE;
3967 }
3968 elf_section_data (sec)->sreloc = sreloc;
3969 }
3970
3971 /* If this is a global symbol, we count the number of
3972 relocations we need for this symbol. */
3973 if (h != NULL)
3974 {
3975 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
3976 }
3977 else
3978 {
3979 /* Track dynamic relocs needed for local syms too.
3980 We really need local syms available to do this
3981 easily. Oh well. */
3982
3983 asection *s;
3984 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3985 sec, r_symndx);
3986 if (s == NULL)
3987 return FALSE;
3988
3989 head = ((struct ppc_dyn_relocs **)
3990 &elf_section_data (s)->local_dynrel);
3991 }
3992
3993 p = *head;
3994 if (p == NULL || p->sec != sec)
3995 {
3996 p = ((struct ppc_dyn_relocs *)
3997 bfd_alloc (htab->elf.dynobj,
3998 (bfd_size_type) sizeof *p));
3999 if (p == NULL)
4000 return FALSE;
4001 p->next = *head;
4002 *head = p;
4003 p->sec = sec;
4004 p->count = 0;
4005 p->pc_count = 0;
4006 }
4007
4008 p->count += 1;
4009 if (!MUST_BE_DYN_RELOC (r_type))
4010 p->pc_count += 1;
4011 }
4012 break;
4013
4014 default:
4015 break;
4016 }
4017 }
4018
4019 return TRUE;
4020 }
4021
4022 /* Return the section that should be marked against GC for a given
4023 relocation. */
4024
4025 static asection *
4026 ppc64_elf_gc_mark_hook (sec, info, rel, h, sym)
4027 asection *sec;
4028 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4029 Elf_Internal_Rela *rel;
4030 struct elf_link_hash_entry *h;
4031 Elf_Internal_Sym *sym;
4032 {
4033 asection *rsec = NULL;
4034
4035 if (h != NULL)
4036 {
4037 enum elf_ppc64_reloc_type r_type;
4038 struct ppc_link_hash_entry *fdh;
4039
4040 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
4041 switch (r_type)
4042 {
4043 case R_PPC64_GNU_VTINHERIT:
4044 case R_PPC64_GNU_VTENTRY:
4045 break;
4046
4047 default:
4048 switch (h->root.type)
4049 {
4050 case bfd_link_hash_defined:
4051 case bfd_link_hash_defweak:
4052 fdh = (struct ppc_link_hash_entry *) h;
4053
4054 /* Function descriptor syms cause the associated
4055 function code sym section to be marked. */
4056 if (fdh->is_func_descriptor)
4057 rsec = fdh->oh->root.u.def.section;
4058
4059 /* Function entry syms return NULL if they are in .opd
4060 and are not ._start (or others undefined on the ld
4061 command line). Thus we avoid marking all function
4062 sections, as all functions are referenced in .opd. */
4063 else if ((fdh->oh != NULL
4064 && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry)
4065 || ppc64_elf_section_data (sec)->opd.func_sec == NULL)
4066 rsec = h->root.u.def.section;
4067 break;
4068
4069 case bfd_link_hash_common:
4070 rsec = h->root.u.c.p->section;
4071 break;
4072
4073 default:
4074 break;
4075 }
4076 }
4077 }
4078 else
4079 {
4080 asection **opd_sym_section;
4081
4082 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
4083 opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec;
4084 if (opd_sym_section != NULL)
4085 rsec = opd_sym_section[sym->st_value / 24];
4086 else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL)
4087 rsec = NULL;
4088 }
4089
4090 return rsec;
4091 }
4092
4093 /* Update the .got, .plt. and dynamic reloc reference counts for the
4094 section being removed. */
4095
4096 static bfd_boolean
4097 ppc64_elf_gc_sweep_hook (abfd, info, sec, relocs)
4098 bfd *abfd;
4099 struct bfd_link_info *info;
4100 asection *sec;
4101 const Elf_Internal_Rela *relocs;
4102 {
4103 struct ppc_link_hash_table *htab;
4104 Elf_Internal_Shdr *symtab_hdr;
4105 struct elf_link_hash_entry **sym_hashes;
4106 struct got_entry **local_got_ents;
4107 const Elf_Internal_Rela *rel, *relend;
4108
4109 elf_section_data (sec)->local_dynrel = NULL;
4110
4111 htab = ppc_hash_table (info);
4112 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4113 sym_hashes = elf_sym_hashes (abfd);
4114 local_got_ents = elf_local_got_ents (abfd);
4115
4116 relend = relocs + sec->reloc_count;
4117 for (rel = relocs; rel < relend; rel++)
4118 {
4119 unsigned long r_symndx;
4120 enum elf_ppc64_reloc_type r_type;
4121 struct elf_link_hash_entry *h = NULL;
4122 char tls_type = 0;
4123
4124 r_symndx = ELF64_R_SYM (rel->r_info);
4125 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
4126 if (r_symndx >= symtab_hdr->sh_info)
4127 {
4128 struct ppc_link_hash_entry *eh;
4129 struct ppc_dyn_relocs **pp;
4130 struct ppc_dyn_relocs *p;
4131
4132 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4133 eh = (struct ppc_link_hash_entry *) h;
4134
4135 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4136 if (p->sec == sec)
4137 {
4138 /* Everything must go for SEC. */
4139 *pp = p->next;
4140 break;
4141 }
4142 }
4143
4144 switch (r_type)
4145 {
4146 case R_PPC64_GOT_TLSLD16:
4147 case R_PPC64_GOT_TLSLD16_LO:
4148 case R_PPC64_GOT_TLSLD16_HI:
4149 case R_PPC64_GOT_TLSLD16_HA:
4150 htab->tlsld_got.refcount -= 1;
4151 tls_type = TLS_TLS | TLS_LD;
4152 goto dogot;
4153
4154 case R_PPC64_GOT_TLSGD16:
4155 case R_PPC64_GOT_TLSGD16_LO:
4156 case R_PPC64_GOT_TLSGD16_HI:
4157 case R_PPC64_GOT_TLSGD16_HA:
4158 tls_type = TLS_TLS | TLS_GD;
4159 goto dogot;
4160
4161 case R_PPC64_GOT_TPREL16_DS:
4162 case R_PPC64_GOT_TPREL16_LO_DS:
4163 case R_PPC64_GOT_TPREL16_HI:
4164 case R_PPC64_GOT_TPREL16_HA:
4165 tls_type = TLS_TLS | TLS_TPREL;
4166 goto dogot;
4167
4168 case R_PPC64_GOT_DTPREL16_DS:
4169 case R_PPC64_GOT_DTPREL16_LO_DS:
4170 case R_PPC64_GOT_DTPREL16_HI:
4171 case R_PPC64_GOT_DTPREL16_HA:
4172 tls_type = TLS_TLS | TLS_DTPREL;
4173 goto dogot;
4174
4175 case R_PPC64_GOT16:
4176 case R_PPC64_GOT16_DS:
4177 case R_PPC64_GOT16_HA:
4178 case R_PPC64_GOT16_HI:
4179 case R_PPC64_GOT16_LO:
4180 case R_PPC64_GOT16_LO_DS:
4181 dogot:
4182 {
4183 struct got_entry *ent;
4184
4185 if (h != NULL)
4186 ent = h->got.glist;
4187 else
4188 ent = local_got_ents[r_symndx];
4189
4190 for (; ent != NULL; ent = ent->next)
4191 if (ent->addend == rel->r_addend
4192 && ent->tls_type == tls_type)
4193 break;
4194 if (ent == NULL)
4195 abort ();
4196 if (ent->got.refcount > 0)
4197 ent->got.refcount -= 1;
4198 }
4199 break;
4200
4201 case R_PPC64_PLT16_HA:
4202 case R_PPC64_PLT16_HI:
4203 case R_PPC64_PLT16_LO:
4204 case R_PPC64_PLT32:
4205 case R_PPC64_PLT64:
4206 case R_PPC64_REL14:
4207 case R_PPC64_REL14_BRNTAKEN:
4208 case R_PPC64_REL14_BRTAKEN:
4209 case R_PPC64_REL24:
4210 if (h != NULL)
4211 {
4212 struct plt_entry *ent;
4213
4214 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4215 if (ent->addend == rel->r_addend)
4216 break;
4217 if (ent == NULL)
4218 abort ();
4219 if (ent->plt.refcount > 0)
4220 ent->plt.refcount -= 1;
4221 }
4222 break;
4223
4224 default:
4225 break;
4226 }
4227 }
4228 return TRUE;
4229 }
4230
4231 /* Called via elf_link_hash_traverse to transfer dynamic linking
4232 information on function code symbol entries to their corresponding
4233 function descriptor symbol entries. */
4234 static bfd_boolean
4235 func_desc_adjust (h, inf)
4236 struct elf_link_hash_entry *h;
4237 PTR inf;
4238 {
4239 struct bfd_link_info *info;
4240 struct ppc_link_hash_table *htab;
4241 struct plt_entry *ent;
4242
4243 if (h->root.type == bfd_link_hash_indirect)
4244 return TRUE;
4245
4246 if (h->root.type == bfd_link_hash_warning)
4247 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4248
4249 info = (struct bfd_link_info *) inf;
4250 htab = ppc_hash_table (info);
4251
4252 /* If this is a function code symbol, transfer dynamic linking
4253 information to the function descriptor symbol. */
4254 if (!((struct ppc_link_hash_entry *) h)->is_func)
4255 return TRUE;
4256
4257 if (h->root.type == bfd_link_hash_undefweak
4258 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR))
4259 htab->have_undefweak = TRUE;
4260
4261 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4262 if (ent->plt.refcount > 0)
4263 break;
4264 if (ent != NULL
4265 && h->root.root.string[0] == '.'
4266 && h->root.root.string[1] != '\0')
4267 {
4268 struct elf_link_hash_entry *fdh = ((struct ppc_link_hash_entry *) h)->oh;
4269 bfd_boolean force_local;
4270
4271 /* Find the corresponding function descriptor symbol. Create it
4272 as undefined if necessary. */
4273
4274 if (fdh == NULL)
4275 fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1,
4276 FALSE, FALSE, TRUE);
4277
4278 if (fdh == NULL
4279 && info->shared
4280 && (h->root.type == bfd_link_hash_undefined
4281 || h->root.type == bfd_link_hash_undefweak))
4282 {
4283 bfd *abfd;
4284 asymbol *newsym;
4285 struct bfd_link_hash_entry *bh;
4286
4287 abfd = h->root.u.undef.abfd;
4288 newsym = bfd_make_empty_symbol (abfd);
4289 newsym->name = h->root.root.string + 1;
4290 newsym->section = bfd_und_section_ptr;
4291 newsym->value = 0;
4292 newsym->flags = BSF_OBJECT;
4293 if (h->root.type == bfd_link_hash_undefweak)
4294 newsym->flags |= BSF_WEAK;
4295
4296 bh = &fdh->root;
4297 if ( !(_bfd_generic_link_add_one_symbol
4298 (info, abfd, newsym->name, newsym->flags,
4299 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
4300 {
4301 return FALSE;
4302 }
4303 fdh = (struct elf_link_hash_entry *) bh;
4304 fdh->elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
4305 }
4306
4307 if (fdh != NULL
4308 && (fdh->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
4309 && (info->shared
4310 || (fdh->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4311 || (fdh->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0))
4312 {
4313 if (fdh->dynindx == -1)
4314 if (! bfd_elf64_link_record_dynamic_symbol (info, fdh))
4315 return FALSE;
4316 fdh->elf_link_hash_flags |= (h->elf_link_hash_flags
4317 & (ELF_LINK_HASH_REF_REGULAR
4318 | ELF_LINK_HASH_REF_DYNAMIC
4319 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4320 | ELF_LINK_NON_GOT_REF));
4321 if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
4322 {
4323 fdh->plt.plist = h->plt.plist;
4324 fdh->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
4325 }
4326 ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1;
4327 ((struct ppc_link_hash_entry *) fdh)->oh = h;
4328 ((struct ppc_link_hash_entry *) h)->oh = fdh;
4329 }
4330
4331 /* Now that the info is on the function descriptor, clear the
4332 function code sym info. Any function code syms for which we
4333 don't have a definition in a regular file, we force local.
4334 This prevents a shared library from exporting syms that have
4335 been imported from another library. Function code syms that
4336 are really in the library we must leave global to prevent the
4337 linker dragging in a definition from a static library. */
4338 force_local = (info->shared
4339 && ((h->elf_link_hash_flags
4340 & ELF_LINK_HASH_DEF_REGULAR) == 0
4341 || fdh == NULL
4342 || (fdh->elf_link_hash_flags
4343 & ELF_LINK_HASH_DEF_REGULAR) == 0
4344 || (fdh->elf_link_hash_flags
4345 & ELF_LINK_FORCED_LOCAL) != 0));
4346 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4347 }
4348
4349 return TRUE;
4350 }
4351
4352 #define MIN_SAVE_FPR 14
4353 #define MAX_SAVE_FPR 31
4354
4355 /* Called near the start of bfd_elf_size_dynamic_sections. We use
4356 this hook to a) provide some gcc support functions, and b) transfer
4357 dynamic linking information gathered so far on function code symbol
4358 entries, to their corresponding function descriptor symbol entries. */
4359 static bfd_boolean
4360 ppc64_elf_func_desc_adjust (obfd, info)
4361 bfd *obfd ATTRIBUTE_UNUSED;
4362 struct bfd_link_info *info;
4363 {
4364 struct ppc_link_hash_table *htab;
4365 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
4366 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
4367 unsigned int i;
4368 struct elf_link_hash_entry *h;
4369 bfd_byte *p;
4370 char sym[10];
4371
4372 htab = ppc_hash_table (info);
4373
4374 if (htab->sfpr == NULL)
4375 /* We don't have any relocs. */
4376 return TRUE;
4377
4378 /* First provide any missing ._savef* and ._restf* functions. */
4379 memcpy (sym, "._savef14", 10);
4380 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4381 {
4382 sym[7] = i / 10 + '0';
4383 sym[8] = i % 10 + '0';
4384 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
4385 if (h != NULL
4386 && h->root.type == bfd_link_hash_undefined)
4387 {
4388 if (lowest_savef > i)
4389 lowest_savef = i;
4390 h->root.type = bfd_link_hash_defined;
4391 h->root.u.def.section = htab->sfpr;
4392 h->root.u.def.value = (i - lowest_savef) * 4;
4393 h->type = STT_FUNC;
4394 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4395 _bfd_elf_link_hash_hide_symbol (info, h, info->shared);
4396 }
4397 }
4398
4399 memcpy (sym, "._restf14", 10);
4400 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4401 {
4402 sym[7] = i / 10 + '0';
4403 sym[8] = i % 10 + '0';
4404 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
4405 if (h != NULL
4406 && h->root.type == bfd_link_hash_undefined)
4407 {
4408 if (lowest_restf > i)
4409 lowest_restf = i;
4410 h->root.type = bfd_link_hash_defined;
4411 h->root.u.def.section = htab->sfpr;
4412 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4413 + (i - lowest_restf) * 4);
4414 h->type = STT_FUNC;
4415 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
4416 _bfd_elf_link_hash_hide_symbol (info, h, info->shared);
4417 }
4418 }
4419
4420 elf_link_hash_traverse (&htab->elf, func_desc_adjust, (PTR) info);
4421
4422 htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4423 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
4424
4425 if (htab->sfpr->_raw_size == 0)
4426 {
4427 if (!htab->have_undefweak)
4428 {
4429 _bfd_strip_section_from_output (info, htab->sfpr);
4430 return TRUE;
4431 }
4432
4433 htab->sfpr->_raw_size = 4;
4434 }
4435
4436 p = (bfd_byte *) bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size);
4437 if (p == NULL)
4438 return FALSE;
4439 htab->sfpr->contents = p;
4440
4441 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
4442 {
4443 unsigned int fpr = i << 21;
4444 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4445 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
4446 p += 4;
4447 }
4448 if (lowest_savef <= MAX_SAVE_FPR)
4449 {
4450 bfd_put_32 (htab->elf.dynobj, BLR, p);
4451 p += 4;
4452 }
4453
4454 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
4455 {
4456 unsigned int fpr = i << 21;
4457 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4458 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
4459 p += 4;
4460 }
4461 if (lowest_restf <= MAX_SAVE_FPR
4462 || htab->sfpr->_raw_size == 4)
4463 {
4464 bfd_put_32 (htab->elf.dynobj, BLR, p);
4465 }
4466
4467 return TRUE;
4468 }
4469
4470 /* Adjust a symbol defined by a dynamic object and referenced by a
4471 regular object. The current definition is in some section of the
4472 dynamic object, but we're not including those sections. We have to
4473 change the definition to something the rest of the link can
4474 understand. */
4475
4476 static bfd_boolean
4477 ppc64_elf_adjust_dynamic_symbol (info, h)
4478 struct bfd_link_info *info;
4479 struct elf_link_hash_entry *h;
4480 {
4481 struct ppc_link_hash_table *htab;
4482 asection *s;
4483 unsigned int power_of_two;
4484
4485 htab = ppc_hash_table (info);
4486
4487 /* Deal with function syms. */
4488 if (h->type == STT_FUNC
4489 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4490 {
4491 /* Clear procedure linkage table information for any symbol that
4492 won't need a .plt entry. */
4493 struct plt_entry *ent;
4494 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4495 if (ent->plt.refcount > 0)
4496 break;
4497 if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor
4498 || ent == NULL
4499 || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
4500 || (! info->shared
4501 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
4502 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0))
4503 {
4504 h->plt.plist = NULL;
4505 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
4506 }
4507 return TRUE;
4508 }
4509 else
4510 h->plt.plist = NULL;
4511
4512 /* If this is a weak symbol, and there is a real definition, the
4513 processor independent code will have arranged for us to see the
4514 real definition first, and we can just use the same value. */
4515 if (h->weakdef != NULL)
4516 {
4517 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
4518 || h->weakdef->root.type == bfd_link_hash_defweak);
4519 h->root.u.def.section = h->weakdef->root.u.def.section;
4520 h->root.u.def.value = h->weakdef->root.u.def.value;
4521 return TRUE;
4522 }
4523
4524 /* This is a reference to a symbol defined by a dynamic object which
4525 is not a function. */
4526
4527 /* If we are creating a shared library, we must presume that the
4528 only references to the symbol are via the global offset table.
4529 For such cases we need not do anything here; the relocations will
4530 be handled correctly by relocate_section. */
4531 if (info->shared)
4532 return TRUE;
4533
4534 /* If there are no references to this symbol that do not use the
4535 GOT, we don't need to generate a copy reloc. */
4536 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
4537 return TRUE;
4538
4539 if (ELIMINATE_COPY_RELOCS)
4540 {
4541 struct ppc_link_hash_entry * eh;
4542 struct ppc_dyn_relocs *p;
4543
4544 eh = (struct ppc_link_hash_entry *) h;
4545 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4546 {
4547 s = p->sec->output_section;
4548 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4549 break;
4550 }
4551
4552 /* If we didn't find any dynamic relocs in read-only sections, then
4553 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4554 if (p == NULL)
4555 {
4556 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
4557 return TRUE;
4558 }
4559 }
4560
4561 /* We must allocate the symbol in our .dynbss section, which will
4562 become part of the .bss section of the executable. There will be
4563 an entry for this symbol in the .dynsym section. The dynamic
4564 object will contain position independent code, so all references
4565 from the dynamic object to this symbol will go through the global
4566 offset table. The dynamic linker will use the .dynsym entry to
4567 determine the address it must put in the global offset table, so
4568 both the dynamic object and the regular object will refer to the
4569 same memory location for the variable. */
4570
4571 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4572 to copy the initial value out of the dynamic object and into the
4573 runtime process image. We need to remember the offset into the
4574 .rela.bss section we are going to use. */
4575 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4576 {
4577 htab->srelbss->_raw_size += sizeof (Elf64_External_Rela);
4578 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
4579 }
4580
4581 /* We need to figure out the alignment required for this symbol. I
4582 have no idea how ELF linkers handle this. */
4583 power_of_two = bfd_log2 (h->size);
4584 if (power_of_two > 4)
4585 power_of_two = 4;
4586
4587 /* Apply the required alignment. */
4588 s = htab->sdynbss;
4589 s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two));
4590 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
4591 {
4592 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
4593 return FALSE;
4594 }
4595
4596 /* Define the symbol as being at this point in the section. */
4597 h->root.u.def.section = s;
4598 h->root.u.def.value = s->_raw_size;
4599
4600 /* Increment the section size to make room for the symbol. */
4601 s->_raw_size += h->size;
4602
4603 return TRUE;
4604 }
4605
4606 /* If given a function descriptor symbol, hide both the function code
4607 sym and the descriptor. */
4608 static void
4609 ppc64_elf_hide_symbol (info, h, force_local)
4610 struct bfd_link_info *info;
4611 struct elf_link_hash_entry *h;
4612 bfd_boolean force_local;
4613 {
4614 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4615
4616 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
4617 {
4618 struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh;
4619
4620 if (fh == NULL)
4621 {
4622 const char *p, *q;
4623 struct ppc_link_hash_table *htab;
4624 char save;
4625
4626 /* We aren't supposed to use alloca in BFD because on
4627 systems which do not have alloca the version in libiberty
4628 calls xmalloc, which might cause the program to crash
4629 when it runs out of memory. This function doesn't have a
4630 return status, so there's no way to gracefully return an
4631 error. So cheat. We know that string[-1] can be safely
4632 dereferenced; It's either a string in an ELF string
4633 table, or allocated in an objalloc structure. */
4634
4635 p = h->root.root.string - 1;
4636 save = *p;
4637 *(char *) p = '.';
4638 htab = ppc_hash_table (info);
4639 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
4640 *(char *) p = save;
4641
4642 /* Unfortunately, if it so happens that the string we were
4643 looking for was allocated immediately before this string,
4644 then we overwrote the string terminator. That's the only
4645 reason the lookup should fail. */
4646 if (fh == NULL)
4647 {
4648 q = h->root.root.string + strlen (h->root.root.string);
4649 while (q >= h->root.root.string && *q == *p)
4650 --q, --p;
4651 if (q < h->root.root.string && *p == '.')
4652 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
4653 }
4654 if (fh != NULL)
4655 {
4656 ((struct ppc_link_hash_entry *) h)->oh = fh;
4657 ((struct ppc_link_hash_entry *) fh)->oh = h;
4658 }
4659 }
4660 if (fh != NULL)
4661 _bfd_elf_link_hash_hide_symbol (info, fh, force_local);
4662 }
4663 }
4664
4665 static bfd_boolean
4666 get_sym_h (hp, symp, symsecp, tls_maskp, locsymsp, r_symndx, ibfd)
4667 struct elf_link_hash_entry **hp;
4668 Elf_Internal_Sym **symp;
4669 asection **symsecp;
4670 char **tls_maskp;
4671 Elf_Internal_Sym **locsymsp;
4672 unsigned long r_symndx;
4673 bfd *ibfd;
4674 {
4675 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4676
4677 if (r_symndx >= symtab_hdr->sh_info)
4678 {
4679 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4680 struct elf_link_hash_entry *h;
4681
4682 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4683 while (h->root.type == bfd_link_hash_indirect
4684 || h->root.type == bfd_link_hash_warning)
4685 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4686
4687 if (hp != NULL)
4688 *hp = h;
4689
4690 if (symp != NULL)
4691 *symp = NULL;
4692
4693 if (symsecp != NULL)
4694 {
4695 asection *symsec = NULL;
4696 if (h->root.type == bfd_link_hash_defined
4697 || h->root.type == bfd_link_hash_defweak)
4698 symsec = h->root.u.def.section;
4699 *symsecp = symsec;
4700 }
4701
4702 if (tls_maskp != NULL)
4703 {
4704 struct ppc_link_hash_entry *eh;
4705
4706 eh = (struct ppc_link_hash_entry *) h;
4707 *tls_maskp = &eh->tls_mask;
4708 }
4709 }
4710 else
4711 {
4712 Elf_Internal_Sym *sym;
4713 Elf_Internal_Sym *locsyms = *locsymsp;
4714
4715 if (locsyms == NULL)
4716 {
4717 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4718 if (locsyms == NULL)
4719 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4720 symtab_hdr->sh_info,
4721 0, NULL, NULL, NULL);
4722 if (locsyms == NULL)
4723 return FALSE;
4724 *locsymsp = locsyms;
4725 }
4726 sym = locsyms + r_symndx;
4727
4728 if (hp != NULL)
4729 *hp = NULL;
4730
4731 if (symp != NULL)
4732 *symp = sym;
4733
4734 if (symsecp != NULL)
4735 {
4736 asection *symsec = NULL;
4737 if ((sym->st_shndx != SHN_UNDEF
4738 && sym->st_shndx < SHN_LORESERVE)
4739 || sym->st_shndx > SHN_HIRESERVE)
4740 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
4741 *symsecp = symsec;
4742 }
4743
4744 if (tls_maskp != NULL)
4745 {
4746 struct got_entry **lgot_ents;
4747 char *tls_mask;
4748
4749 tls_mask = NULL;
4750 lgot_ents = elf_local_got_ents (ibfd);
4751 if (lgot_ents != NULL)
4752 {
4753 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
4754 tls_mask = &lgot_masks[r_symndx];
4755 }
4756 *tls_maskp = tls_mask;
4757 }
4758 }
4759 return TRUE;
4760 }
4761
4762 /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
4763 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
4764 type suitable for optimization, and 1 otherwise. */
4765
4766 static int
4767 get_tls_mask (tls_maskp, locsymsp, rel, ibfd)
4768 char **tls_maskp;
4769 Elf_Internal_Sym **locsymsp;
4770 const Elf_Internal_Rela *rel;
4771 bfd *ibfd;
4772 {
4773 unsigned long r_symndx;
4774 unsigned int next_r;
4775 struct elf_link_hash_entry *h;
4776 Elf_Internal_Sym *sym;
4777 asection *sec;
4778 bfd_vma off;
4779
4780 r_symndx = ELF64_R_SYM (rel->r_info);
4781 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
4782 return 0;
4783
4784 if ((*tls_maskp != NULL && **tls_maskp != 0)
4785 || sec == NULL
4786 || ppc64_elf_section_data (sec)->t_symndx == NULL)
4787 return 1;
4788
4789 /* Look inside a TOC section too. */
4790 if (h != NULL)
4791 {
4792 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4793 off = h->root.u.def.value;
4794 }
4795 else
4796 off = sym->st_value;
4797 off += rel->r_addend;
4798 BFD_ASSERT (off % 8 == 0);
4799 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
4800 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
4801 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
4802 return 0;
4803 if (h == NULL
4804 || h->root.type == bfd_link_hash_defined
4805 || h->root.type == bfd_link_hash_defweak)
4806 {
4807 if (next_r == (unsigned) -1)
4808 return 2;
4809 if (next_r == (unsigned) -2
4810 && (h == NULL
4811 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
4812 return 3;
4813 }
4814 return 1;
4815 }
4816
4817 bfd_boolean
4818 ppc64_elf_edit_opd (obfd, info)
4819 bfd *obfd;
4820 struct bfd_link_info *info;
4821 {
4822 bfd *ibfd;
4823
4824 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
4825 {
4826 asection *sec;
4827 Elf_Internal_Rela *relstart, *rel, *relend;
4828 Elf_Internal_Shdr *symtab_hdr;
4829 Elf_Internal_Sym *local_syms;
4830 struct elf_link_hash_entry **sym_hashes;
4831 bfd_vma offset;
4832 bfd_size_type amt;
4833 long *adjust;
4834 bfd_boolean need_edit;
4835
4836 sec = bfd_get_section_by_name (ibfd, ".opd");
4837 if (sec == NULL)
4838 continue;
4839
4840 amt = sec->_raw_size * sizeof (long) / 24;
4841 adjust = ppc64_elf_section_data (sec)->opd.adjust;
4842 if (adjust == NULL)
4843 {
4844 /* Must be a ld -r link. ie. check_relocs hasn't been
4845 called. */
4846 adjust = (long *) bfd_zalloc (obfd, amt);
4847 ppc64_elf_section_data (sec)->opd.adjust = adjust;
4848 }
4849 memset (adjust, 0, (size_t) amt);
4850
4851 if (sec->output_section == bfd_abs_section_ptr)
4852 continue;
4853
4854 /* Look through the section relocs. */
4855 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
4856 continue;
4857
4858 local_syms = NULL;
4859 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4860 sym_hashes = elf_sym_hashes (ibfd);
4861
4862 /* Read the relocations. */
4863 relstart = _bfd_elf64_link_read_relocs (ibfd, sec, (PTR) NULL,
4864 (Elf_Internal_Rela *) NULL,
4865 info->keep_memory);
4866 if (relstart == NULL)
4867 return FALSE;
4868
4869 /* First run through the relocs to check they are sane, and to
4870 determine whether we need to edit this opd section. */
4871 need_edit = FALSE;
4872 offset = 0;
4873 relend = relstart + sec->reloc_count;
4874 for (rel = relstart; rel < relend; rel++)
4875 {
4876 enum elf_ppc64_reloc_type r_type;
4877 unsigned long r_symndx;
4878 asection *sym_sec;
4879 struct elf_link_hash_entry *h;
4880 Elf_Internal_Sym *sym;
4881
4882 /* .opd contains a regular array of 24 byte entries. We're
4883 only interested in the reloc pointing to a function entry
4884 point. */
4885 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
4886 if (r_type == R_PPC64_TOC)
4887 continue;
4888
4889 if (r_type != R_PPC64_ADDR64)
4890 {
4891 (*_bfd_error_handler)
4892 (_("%s: unexpected reloc type %u in .opd section"),
4893 bfd_archive_filename (ibfd), r_type);
4894 need_edit = FALSE;
4895 break;
4896 }
4897
4898 if (rel + 1 >= relend)
4899 continue;
4900 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE ((rel + 1)->r_info);
4901 if (r_type != R_PPC64_TOC)
4902 continue;
4903
4904 if (rel->r_offset != offset)
4905 {
4906 /* If someone messes with .opd alignment then after a
4907 "ld -r" we might have padding in the middle of .opd.
4908 Also, there's nothing to prevent someone putting
4909 something silly in .opd with the assembler. No .opd
4910 optimization for them! */
4911 (*_bfd_error_handler)
4912 (_("%s: .opd is not a regular array of opd entries"),
4913 bfd_archive_filename (ibfd));
4914 need_edit = FALSE;
4915 break;
4916 }
4917
4918 r_symndx = ELF64_R_SYM (rel->r_info);
4919 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
4920 r_symndx, ibfd))
4921 goto error_free_rel;
4922
4923 if (sym_sec == NULL || sym_sec->owner == NULL)
4924 {
4925 const char *sym_name;
4926 if (h != NULL)
4927 sym_name = h->root.root.string;
4928 else
4929 sym_name = bfd_elf_local_sym_name (ibfd, sym);
4930
4931 (*_bfd_error_handler)
4932 (_("%s: undefined sym `%s' in .opd section"),
4933 bfd_archive_filename (ibfd),
4934 sym_name);
4935 need_edit = FALSE;
4936 break;
4937 }
4938
4939 /* opd entries are always for functions defined in the
4940 current input bfd. If the symbol isn't defined in the
4941 input bfd, then we won't be using the function in this
4942 bfd; It must be defined in a linkonce section in another
4943 bfd, or is weak. It's also possible that we are
4944 discarding the function due to a linker script /DISCARD/,
4945 which we test for via the output_section. */
4946 if (sym_sec->owner != ibfd
4947 || sym_sec->output_section == bfd_abs_section_ptr)
4948 need_edit = TRUE;
4949
4950 offset += 24;
4951 }
4952
4953 if (need_edit)
4954 {
4955 Elf_Internal_Rela *write_rel;
4956 bfd_byte *rptr, *wptr;
4957 bfd_boolean skip;
4958
4959 /* This seems a waste of time as input .opd sections are all
4960 zeros as generated by gcc, but I suppose there's no reason
4961 this will always be so. We might start putting something in
4962 the third word of .opd entries. */
4963 if ((sec->flags & SEC_IN_MEMORY) == 0)
4964 {
4965 bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size);
4966 if (loc == NULL
4967 || !bfd_get_section_contents (ibfd, sec, loc, (bfd_vma) 0,
4968 sec->_raw_size))
4969 {
4970 if (local_syms != NULL
4971 && symtab_hdr->contents != (unsigned char *) local_syms)
4972 free (local_syms);
4973 error_free_rel:
4974 if (elf_section_data (sec)->relocs != relstart)
4975 free (relstart);
4976 return FALSE;
4977 }
4978 sec->contents = loc;
4979 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
4980 }
4981
4982 elf_section_data (sec)->relocs = relstart;
4983
4984 wptr = sec->contents;
4985 rptr = sec->contents;
4986 write_rel = relstart;
4987 skip = FALSE;
4988 offset = 0;
4989 for (rel = relstart; rel < relend; rel++)
4990 {
4991 if (rel->r_offset == offset)
4992 {
4993 unsigned long r_symndx;
4994 asection *sym_sec;
4995 struct elf_link_hash_entry *h;
4996 Elf_Internal_Sym *sym;
4997
4998 r_symndx = ELF64_R_SYM (rel->r_info);
4999 get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
5000 r_symndx, ibfd);
5001
5002 skip = (sym_sec->owner != ibfd
5003 || sym_sec->output_section == bfd_abs_section_ptr);
5004 if (skip)
5005 {
5006 if (h != NULL && sym_sec->owner == ibfd)
5007 {
5008 /* Arrange for the function descriptor sym
5009 to be dropped. */
5010 struct ppc_link_hash_entry *fdh;
5011 struct ppc_link_hash_entry *fh;
5012
5013 fh = (struct ppc_link_hash_entry *) h;
5014 fdh = (struct ppc_link_hash_entry *) fh->oh;
5015 if (fdh == NULL)
5016 {
5017 const char *fd_name;
5018 struct ppc_link_hash_table *htab;
5019
5020 fd_name = h->root.root.string + 1;
5021 htab = ppc_hash_table (info);
5022 fdh = (struct ppc_link_hash_entry *)
5023 elf_link_hash_lookup (&htab->elf, fd_name,
5024 FALSE, FALSE, FALSE);
5025 fdh->is_func_descriptor = 1;
5026 fdh->oh = &fh->elf;
5027 fh->is_func = 1;
5028 fh->oh = &fdh->elf;
5029 }
5030
5031 fdh->elf.root.u.def.value = 0;
5032 fdh->elf.root.u.def.section = sym_sec;
5033 }
5034 }
5035 else
5036 {
5037 /* We'll be keeping this opd entry. */
5038
5039 if (h != NULL)
5040 {
5041 /* Redefine the function descriptor symbol
5042 to this location in the opd section.
5043 We've checked above that opd relocs are
5044 ordered. */
5045 struct ppc_link_hash_entry *fdh;
5046 struct ppc_link_hash_entry *fh;
5047
5048 fh = (struct ppc_link_hash_entry *) h;
5049 fdh = (struct ppc_link_hash_entry *) fh->oh;
5050 if (fdh == NULL)
5051 {
5052 const char *fd_name;
5053 struct ppc_link_hash_table *htab;
5054
5055 fd_name = h->root.root.string + 1;
5056 htab = ppc_hash_table (info);
5057 fdh = (struct ppc_link_hash_entry *)
5058 elf_link_hash_lookup (&htab->elf, fd_name,
5059 FALSE, FALSE, FALSE);
5060 fdh->is_func_descriptor = 1;
5061 fdh->oh = &fh->elf;
5062 fh->is_func = 1;
5063 fh->oh = &fdh->elf;
5064 }
5065
5066 fdh->elf.root.u.def.value = wptr - sec->contents;
5067 }
5068 else
5069 {
5070 /* Local syms are a bit tricky. We could
5071 tweak them as they can be cached, but
5072 we'd need to look through the local syms
5073 for the function descriptor sym which we
5074 don't have at the moment. So keep an
5075 array of adjustments. */
5076 adjust[rel->r_offset / 24] = wptr - rptr;
5077 }
5078
5079 if (wptr != rptr)
5080 memcpy (wptr, rptr, 24);
5081 wptr += 24;
5082 }
5083 rptr += 24;
5084 offset += 24;
5085 }
5086
5087 /* We need to adjust any reloc offsets to point to the
5088 new opd entries. While we're at it, we may as well
5089 remove redundant relocs. */
5090 if (!skip)
5091 {
5092 rel->r_offset += wptr - rptr;
5093 if (write_rel != rel)
5094 memcpy (write_rel, rel, sizeof (*rel));
5095 ++write_rel;
5096 }
5097 }
5098
5099 sec->_cooked_size = wptr - sec->contents;
5100 sec->reloc_count = write_rel - relstart;
5101 /* Fudge the size too, as this is used later in
5102 elf_bfd_final_link if we are emitting relocs. */
5103 elf_section_data (sec)->rel_hdr.sh_size
5104 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
5105 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
5106 }
5107 else if (elf_section_data (sec)->relocs != relstart)
5108 free (relstart);
5109
5110 if (local_syms != NULL
5111 && symtab_hdr->contents != (unsigned char *) local_syms)
5112 {
5113 if (!info->keep_memory)
5114 free (local_syms);
5115 else
5116 symtab_hdr->contents = (unsigned char *) local_syms;
5117 }
5118 }
5119
5120 return TRUE;
5121 }
5122
5123 /* Set htab->tls_sec. */
5124
5125 bfd_boolean
5126 ppc64_elf_tls_setup (obfd, info)
5127 bfd *obfd;
5128 struct bfd_link_info *info;
5129 {
5130 asection *tls;
5131 struct ppc_link_hash_table *htab;
5132
5133 for (tls = obfd->sections; tls != NULL; tls = tls->next)
5134 if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD))
5135 == (SEC_THREAD_LOCAL | SEC_LOAD))
5136 break;
5137
5138 htab = ppc_hash_table (info);
5139 htab->tls_sec = tls;
5140
5141 if (htab->tls_get_addr != NULL)
5142 {
5143 struct elf_link_hash_entry *h = htab->tls_get_addr;
5144
5145 while (h->root.type == bfd_link_hash_indirect
5146 || h->root.type == bfd_link_hash_warning)
5147 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5148
5149 htab->tls_get_addr = h;
5150 }
5151
5152 return tls != NULL;
5153 }
5154
5155 /* Run through all the TLS relocs looking for optimization
5156 opportunities. The linker has been hacked (see ppc64elf.em) to do
5157 a preliminary section layout so that we know the TLS segment
5158 offsets. We can't optimize earlier because some optimizations need
5159 to know the tp offset, and we need to optimize before allocating
5160 dynamic relocations. */
5161
5162 bfd_boolean
5163 ppc64_elf_tls_optimize (obfd, info)
5164 bfd *obfd ATTRIBUTE_UNUSED;
5165 struct bfd_link_info *info;
5166 {
5167 bfd *ibfd;
5168 asection *sec;
5169 struct ppc_link_hash_table *htab;
5170
5171 if (info->relocateable || info->shared)
5172 return TRUE;
5173
5174 htab = ppc_hash_table (info);
5175 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5176 {
5177 Elf_Internal_Sym *locsyms = NULL;
5178
5179 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5180 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5181 {
5182 Elf_Internal_Rela *relstart, *rel, *relend;
5183 int expecting_tls_get_addr;
5184
5185 /* Read the relocations. */
5186 relstart = _bfd_elf64_link_read_relocs (ibfd, sec, (PTR) NULL,
5187 (Elf_Internal_Rela *) NULL,
5188 info->keep_memory);
5189 if (relstart == NULL)
5190 return FALSE;
5191
5192 expecting_tls_get_addr = 0;
5193 relend = relstart + sec->reloc_count;
5194 for (rel = relstart; rel < relend; rel++)
5195 {
5196 enum elf_ppc64_reloc_type r_type;
5197 unsigned long r_symndx;
5198 struct elf_link_hash_entry *h;
5199 Elf_Internal_Sym *sym;
5200 asection *sym_sec;
5201 char *tls_mask;
5202 char tls_set, tls_clear, tls_type = 0;
5203 bfd_vma value;
5204 bfd_boolean ok_tprel, is_local;
5205
5206 r_symndx = ELF64_R_SYM (rel->r_info);
5207 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
5208 r_symndx, ibfd))
5209 {
5210 err_free_rel:
5211 if (elf_section_data (sec)->relocs != relstart)
5212 free (relstart);
5213 if (locsyms != NULL
5214 && (elf_tdata (ibfd)->symtab_hdr.contents
5215 != (unsigned char *) locsyms))
5216 free (locsyms);
5217 return FALSE;
5218 }
5219
5220 if (h != NULL)
5221 {
5222 if (h->root.type != bfd_link_hash_defined
5223 && h->root.type != bfd_link_hash_defweak)
5224 continue;
5225 value = h->root.u.def.value;
5226 }
5227 else
5228 value = sym->st_value;
5229
5230 ok_tprel = FALSE;
5231 is_local = FALSE;
5232 if (h == NULL
5233 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
5234 {
5235 is_local = TRUE;
5236 value += sym_sec->output_offset;
5237 value += sym_sec->output_section->vma;
5238 value -= htab->tls_sec->vma;
5239 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
5240 < (bfd_vma) 1 << 32);
5241 }
5242
5243 r_type
5244 = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
5245 switch (r_type)
5246 {
5247 case R_PPC64_GOT_TLSLD16:
5248 case R_PPC64_GOT_TLSLD16_LO:
5249 case R_PPC64_GOT_TLSLD16_HI:
5250 case R_PPC64_GOT_TLSLD16_HA:
5251 /* These relocs should never be against a symbol
5252 defined in a shared lib. Leave them alone if
5253 that turns out to be the case. */
5254 htab->tlsld_got.refcount -= 1;
5255 if (!is_local)
5256 continue;
5257
5258 /* LD -> LE */
5259 tls_set = 0;
5260 tls_clear = TLS_LD;
5261 tls_type = TLS_TLS | TLS_LD;
5262 expecting_tls_get_addr = 1;
5263 break;
5264
5265 case R_PPC64_GOT_TLSGD16:
5266 case R_PPC64_GOT_TLSGD16_LO:
5267 case R_PPC64_GOT_TLSGD16_HI:
5268 case R_PPC64_GOT_TLSGD16_HA:
5269 if (ok_tprel)
5270 /* GD -> LE */
5271 tls_set = 0;
5272 else
5273 /* GD -> IE */
5274 tls_set = TLS_TLS | TLS_TPRELGD;
5275 tls_clear = TLS_GD;
5276 tls_type = TLS_TLS | TLS_GD;
5277 expecting_tls_get_addr = 1;
5278 break;
5279
5280 case R_PPC64_GOT_TPREL16_DS:
5281 case R_PPC64_GOT_TPREL16_LO_DS:
5282 case R_PPC64_GOT_TPREL16_HI:
5283 case R_PPC64_GOT_TPREL16_HA:
5284 expecting_tls_get_addr = 0;
5285 if (ok_tprel)
5286 {
5287 /* IE -> LE */
5288 tls_set = 0;
5289 tls_clear = TLS_TPREL;
5290 tls_type = TLS_TLS | TLS_TPREL;
5291 break;
5292 }
5293 else
5294 continue;
5295
5296 case R_PPC64_REL14:
5297 case R_PPC64_REL14_BRTAKEN:
5298 case R_PPC64_REL14_BRNTAKEN:
5299 case R_PPC64_REL24:
5300 if (h != NULL
5301 && h == htab->tls_get_addr)
5302 {
5303 if (!expecting_tls_get_addr
5304 && rel != relstart
5305 && ((ELF64_R_TYPE (rel[-1].r_info)
5306 == R_PPC64_TOC16)
5307 || (ELF64_R_TYPE (rel[-1].r_info)
5308 == R_PPC64_TOC16_LO)))
5309 {
5310 /* Check for toc tls entries. */
5311 char *toc_tls;
5312 int retval;
5313
5314 retval = get_tls_mask (&toc_tls, &locsyms,
5315 rel - 1, ibfd);
5316 if (retval == 0)
5317 goto err_free_rel;
5318 if (toc_tls != NULL)
5319 expecting_tls_get_addr = retval > 1;
5320 }
5321
5322 if (expecting_tls_get_addr)
5323 {
5324 struct plt_entry *ent;
5325 for (ent = h->plt.plist; ent; ent = ent->next)
5326 if (ent->addend == 0)
5327 {
5328 if (ent->plt.refcount > 0)
5329 ent->plt.refcount -= 1;
5330 break;
5331 }
5332 }
5333 }
5334 expecting_tls_get_addr = 0;
5335 continue;
5336
5337 case R_PPC64_TPREL64:
5338 expecting_tls_get_addr = 0;
5339 if (ok_tprel)
5340 {
5341 /* IE -> LE */
5342 tls_set = TLS_EXPLICIT;
5343 tls_clear = TLS_TPREL;
5344 break;
5345 }
5346 else
5347 continue;
5348
5349 case R_PPC64_DTPMOD64:
5350 expecting_tls_get_addr = 0;
5351 if (rel + 1 < relend
5352 && (rel[1].r_info
5353 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
5354 && rel[1].r_offset == rel->r_offset + 8)
5355 {
5356 if (ok_tprel)
5357 /* GD -> LE */
5358 tls_set = TLS_EXPLICIT | TLS_GD;
5359 else
5360 /* GD -> IE */
5361 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
5362 tls_clear = TLS_GD;
5363 }
5364 else
5365 {
5366 if (!is_local)
5367 continue;
5368
5369 /* LD -> LE */
5370 tls_set = TLS_EXPLICIT;
5371 tls_clear = TLS_LD;
5372 }
5373 break;
5374
5375 default:
5376 expecting_tls_get_addr = 0;
5377 continue;
5378 }
5379
5380 if ((tls_set & TLS_EXPLICIT) == 0)
5381 {
5382 struct got_entry *ent;
5383
5384 /* Adjust got entry for this reloc. */
5385 if (h != NULL)
5386 ent = h->got.glist;
5387 else
5388 ent = elf_local_got_ents (ibfd)[r_symndx];
5389
5390 for (; ent != NULL; ent = ent->next)
5391 if (ent->addend == rel->r_addend
5392 && ent->tls_type == tls_type)
5393 break;
5394 if (ent == NULL)
5395 abort ();
5396
5397 if (tls_set == 0)
5398 {
5399 /* We managed to get rid of a got entry. */
5400 if (ent->got.refcount > 0)
5401 ent->got.refcount -= 1;
5402 }
5403 }
5404 else if (h != NULL)
5405 {
5406 struct ppc_link_hash_entry * eh;
5407 struct ppc_dyn_relocs **pp;
5408 struct ppc_dyn_relocs *p;
5409
5410 /* Adjust dynamic relocs. */
5411 eh = (struct ppc_link_hash_entry *) h;
5412 for (pp = &eh->dyn_relocs;
5413 (p = *pp) != NULL;
5414 pp = &p->next)
5415 if (p->sec == sec)
5416 {
5417 /* If we got rid of a DTPMOD/DTPREL reloc
5418 pair then we'll lose one or two dyn
5419 relocs. */
5420 if (tls_set == (TLS_EXPLICIT | TLS_GD))
5421 p->count -= 1;
5422 p->count -= 1;
5423 if (p->count == 0)
5424 *pp = p->next;
5425 break;
5426 }
5427 }
5428
5429 *tls_mask |= tls_set;
5430 *tls_mask &= ~tls_clear;
5431 }
5432
5433 if (elf_section_data (sec)->relocs != relstart)
5434 free (relstart);
5435 }
5436
5437 if (locsyms != NULL
5438 && (elf_tdata (ibfd)->symtab_hdr.contents
5439 != (unsigned char *) locsyms))
5440 {
5441 if (!info->keep_memory)
5442 free (locsyms);
5443 else
5444 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
5445 }
5446 }
5447 return TRUE;
5448 }
5449
5450 /* This is the condition under which ppc64_elf_finish_dynamic_symbol
5451 will be called from elflink.h. If elflink.h doesn't call our
5452 finish_dynamic_symbol routine, we'll need to do something about
5453 initializing any .plt and .got entries in ppc64_elf_relocate_section. */
5454 #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
5455 ((DYN) \
5456 && ((SHARED) \
5457 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
5458 && ((H)->dynindx != -1 \
5459 || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
5460
5461 /* Allocate space in .plt, .got and associated reloc sections for
5462 dynamic relocs. */
5463
5464 static bfd_boolean
5465 allocate_dynrelocs (h, inf)
5466 struct elf_link_hash_entry *h;
5467 PTR inf;
5468 {
5469 struct bfd_link_info *info;
5470 struct ppc_link_hash_table *htab;
5471 asection *s;
5472 struct ppc_link_hash_entry *eh;
5473 struct ppc_dyn_relocs *p;
5474 struct got_entry *gent;
5475
5476 if (h->root.type == bfd_link_hash_indirect)
5477 return TRUE;
5478
5479 if (h->root.type == bfd_link_hash_warning)
5480 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5481
5482 info = (struct bfd_link_info *) inf;
5483 htab = ppc_hash_table (info);
5484
5485 if (htab->elf.dynamic_sections_created
5486 && h->dynindx != -1
5487 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5488 {
5489 struct plt_entry *pent;
5490 bfd_boolean doneone = FALSE;
5491 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
5492 if (pent->plt.refcount > 0)
5493 {
5494 BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor);
5495
5496 /* If this is the first .plt entry, make room for the special
5497 first entry. */
5498 s = htab->splt;
5499 if (s->_raw_size == 0)
5500 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
5501
5502 pent->plt.offset = s->_raw_size;
5503
5504 /* Make room for this entry. */
5505 s->_raw_size += PLT_ENTRY_SIZE;
5506
5507 /* Make room for the .glink code. */
5508 s = htab->sglink;
5509 if (s->_raw_size == 0)
5510 s->_raw_size += GLINK_CALL_STUB_SIZE;
5511 /* We need bigger stubs past index 32767. */
5512 if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
5513 s->_raw_size += 4;
5514 s->_raw_size += 2*4;
5515
5516 /* We also need to make an entry in the .rela.plt section. */
5517 s = htab->srelplt;
5518 s->_raw_size += sizeof (Elf64_External_Rela);
5519 doneone = TRUE;
5520 }
5521 else
5522 pent->plt.offset = (bfd_vma) -1;
5523 if (!doneone)
5524 {
5525 h->plt.plist = NULL;
5526 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5527 }
5528 }
5529 else
5530 {
5531 h->plt.plist = NULL;
5532 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5533 }
5534
5535 eh = (struct ppc_link_hash_entry *) h;
5536 /* Run through the TLS GD got entries first if we're changing them
5537 to TPREL. */
5538 if ((eh->tls_mask & TLS_TPRELGD) != 0)
5539 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5540 if (gent->got.refcount > 0
5541 && (gent->tls_type & TLS_GD) != 0)
5542 {
5543 /* This was a GD entry that has been converted to TPREL. If
5544 there happens to be a TPREL entry we can use that one. */
5545 struct got_entry *ent;
5546 for (ent = h->got.glist; ent != NULL; ent = ent->next)
5547 if (ent->got.refcount > 0
5548 && (ent->tls_type & TLS_TPREL) != 0
5549 && ent->addend == gent->addend)
5550 {
5551 gent->got.refcount = 0;
5552 break;
5553 }
5554
5555 /* If not, then we'll be using our own TPREL entry. */
5556 if (gent->got.refcount != 0)
5557 gent->tls_type = TLS_TLS | TLS_TPREL;
5558 }
5559
5560 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5561 if (gent->got.refcount > 0)
5562 {
5563 bfd_boolean dyn;
5564
5565 /* Make sure this symbol is output as a dynamic symbol.
5566 Undefined weak syms won't yet be marked as dynamic,
5567 nor will all TLS symbols. */
5568 if (h->dynindx == -1
5569 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5570 {
5571 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5572 return FALSE;
5573 }
5574
5575 if ((gent->tls_type & TLS_LD) != 0
5576 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
5577 {
5578 gent->got.offset = htab->tlsld_got.offset;
5579 continue;
5580 }
5581
5582 s = htab->sgot;
5583 gent->got.offset = s->_raw_size;
5584 s->_raw_size
5585 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
5586 dyn = htab->elf.dynamic_sections_created;
5587 if (info->shared
5588 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5589 htab->srelgot->_raw_size
5590 += (gent->tls_type & eh->tls_mask & TLS_GD
5591 ? 2 * sizeof (Elf64_External_Rela)
5592 : sizeof (Elf64_External_Rela));
5593 }
5594 else
5595 gent->got.offset = (bfd_vma) -1;
5596
5597 if (eh->dyn_relocs == NULL)
5598 return TRUE;
5599
5600 /* In the shared -Bsymbolic case, discard space allocated for
5601 dynamic pc-relative relocs against symbols which turn out to be
5602 defined in regular objects. For the normal shared case, discard
5603 space for relocs that have become local due to symbol visibility
5604 changes. */
5605
5606 if (info->shared)
5607 {
5608 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
5609 && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
5610 || info->symbolic))
5611 {
5612 struct ppc_dyn_relocs **pp;
5613
5614 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5615 {
5616 p->count -= p->pc_count;
5617 p->pc_count = 0;
5618 if (p->count == 0)
5619 *pp = p->next;
5620 else
5621 pp = &p->next;
5622 }
5623 }
5624 }
5625 else if (ELIMINATE_COPY_RELOCS)
5626 {
5627 /* For the non-shared case, discard space for relocs against
5628 symbols which turn out to need copy relocs or are not
5629 dynamic. */
5630
5631 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
5632 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5633 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
5634 {
5635 /* Make sure this symbol is output as a dynamic symbol.
5636 Undefined weak syms won't yet be marked as dynamic. */
5637 if (h->dynindx == -1
5638 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5639 {
5640 if (! bfd_elf64_link_record_dynamic_symbol (info, h))
5641 return FALSE;
5642 }
5643
5644 /* If that succeeded, we know we'll be keeping all the
5645 relocs. */
5646 if (h->dynindx != -1)
5647 goto keep;
5648 }
5649
5650 eh->dyn_relocs = NULL;
5651
5652 keep: ;
5653 }
5654
5655 /* Finally, allocate space. */
5656 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5657 {
5658 asection *sreloc = elf_section_data (p->sec)->sreloc;
5659 sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela);
5660 }
5661
5662 return TRUE;
5663 }
5664
5665 /* Find any dynamic relocs that apply to read-only sections. */
5666
5667 static bfd_boolean
5668 readonly_dynrelocs (h, inf)
5669 struct elf_link_hash_entry *h;
5670 PTR inf;
5671 {
5672 struct ppc_link_hash_entry *eh;
5673 struct ppc_dyn_relocs *p;
5674
5675 if (h->root.type == bfd_link_hash_warning)
5676 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5677
5678 eh = (struct ppc_link_hash_entry *) h;
5679 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5680 {
5681 asection *s = p->sec->output_section;
5682
5683 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5684 {
5685 struct bfd_link_info *info = (struct bfd_link_info *) inf;
5686
5687 info->flags |= DF_TEXTREL;
5688
5689 /* Not an error, just cut short the traversal. */
5690 return FALSE;
5691 }
5692 }
5693 return TRUE;
5694 }
5695
5696 /* Set the sizes of the dynamic sections. */
5697
5698 static bfd_boolean
5699 ppc64_elf_size_dynamic_sections (output_bfd, info)
5700 bfd *output_bfd ATTRIBUTE_UNUSED;
5701 struct bfd_link_info *info;
5702 {
5703 struct ppc_link_hash_table *htab;
5704 bfd *dynobj;
5705 asection *s;
5706 bfd_boolean relocs;
5707 bfd *ibfd;
5708
5709 htab = ppc_hash_table (info);
5710 dynobj = htab->elf.dynobj;
5711 if (dynobj == NULL)
5712 abort ();
5713
5714 if (htab->elf.dynamic_sections_created)
5715 {
5716 /* Set the contents of the .interp section to the interpreter. */
5717 if (! info->shared)
5718 {
5719 s = bfd_get_section_by_name (dynobj, ".interp");
5720 if (s == NULL)
5721 abort ();
5722 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
5723 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5724 }
5725 }
5726
5727 if (htab->tlsld_got.refcount > 0)
5728 {
5729 htab->tlsld_got.offset = htab->sgot->_raw_size;
5730 htab->sgot->_raw_size += 16;
5731 if (info->shared)
5732 htab->srelgot->_raw_size += sizeof (Elf64_External_Rela);
5733 }
5734 else
5735 htab->tlsld_got.offset = (bfd_vma) -1;
5736
5737 /* Set up .got offsets for local syms, and space for local dynamic
5738 relocs. */
5739 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5740 {
5741 struct got_entry **lgot_ents;
5742 struct got_entry **end_lgot_ents;
5743 char *lgot_masks;
5744 bfd_size_type locsymcount;
5745 Elf_Internal_Shdr *symtab_hdr;
5746 asection *srel;
5747
5748 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
5749 continue;
5750
5751 for (s = ibfd->sections; s != NULL; s = s->next)
5752 {
5753 struct ppc_dyn_relocs *p;
5754
5755 for (p = *((struct ppc_dyn_relocs **)
5756 &elf_section_data (s)->local_dynrel);
5757 p != NULL;
5758 p = p->next)
5759 {
5760 if (!bfd_is_abs_section (p->sec)
5761 && bfd_is_abs_section (p->sec->output_section))
5762 {
5763 /* Input section has been discarded, either because
5764 it is a copy of a linkonce section or due to
5765 linker script /DISCARD/, so we'll be discarding
5766 the relocs too. */
5767 }
5768 else if (p->count != 0)
5769 {
5770 srel = elf_section_data (p->sec)->sreloc;
5771 srel->_raw_size += p->count * sizeof (Elf64_External_Rela);
5772 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
5773 info->flags |= DF_TEXTREL;
5774 }
5775 }
5776 }
5777
5778 lgot_ents = elf_local_got_ents (ibfd);
5779 if (!lgot_ents)
5780 continue;
5781
5782 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5783 locsymcount = symtab_hdr->sh_info;
5784 end_lgot_ents = lgot_ents + locsymcount;
5785 lgot_masks = (char *) end_lgot_ents;
5786 s = htab->sgot;
5787 srel = htab->srelgot;
5788 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
5789 {
5790 struct got_entry *ent;
5791
5792 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
5793 if (ent->got.refcount > 0)
5794 {
5795 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
5796 {
5797 if (htab->tlsld_got.offset == (bfd_vma) -1)
5798 {
5799 htab->tlsld_got.offset = s->_raw_size;
5800 s->_raw_size += 16;
5801 if (info->shared)
5802 srel->_raw_size += sizeof (Elf64_External_Rela);
5803 }
5804 ent->got.offset = htab->tlsld_got.offset;
5805 }
5806 else
5807 {
5808 ent->got.offset = s->_raw_size;
5809 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
5810 {
5811 s->_raw_size += 16;
5812 if (info->shared)
5813 srel->_raw_size += 2 * sizeof (Elf64_External_Rela);
5814 }
5815 else
5816 {
5817 s->_raw_size += 8;
5818 if (info->shared)
5819 srel->_raw_size += sizeof (Elf64_External_Rela);
5820 }
5821 }
5822 }
5823 else
5824 ent->got.offset = (bfd_vma) -1;
5825 }
5826 }
5827
5828 /* Allocate global sym .plt and .got entries, and space for global
5829 sym dynamic relocs. */
5830 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
5831
5832 /* We now have determined the sizes of the various dynamic sections.
5833 Allocate memory for them. */
5834 relocs = FALSE;
5835 for (s = dynobj->sections; s != NULL; s = s->next)
5836 {
5837 if ((s->flags & SEC_LINKER_CREATED) == 0)
5838 continue;
5839
5840 /* Reset _cooked_size since prelim layout will set it wrongly,
5841 and a non-zero _cooked_size sticks. */
5842 s->_cooked_size = 0;
5843
5844 if (s == htab->sbrlt || s == htab->srelbrlt)
5845 /* These haven't been allocated yet; don't strip. */
5846 continue;
5847 else if (s == htab->splt
5848 || s == htab->sgot
5849 || s == htab->sglink)
5850 {
5851 /* Strip this section if we don't need it; see the
5852 comment below. */
5853 }
5854 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5855 {
5856 if (s->_raw_size == 0)
5857 {
5858 /* If we don't need this section, strip it from the
5859 output file. This is mostly to handle .rela.bss and
5860 .rela.plt. We must create both sections in
5861 create_dynamic_sections, because they must be created
5862 before the linker maps input sections to output
5863 sections. The linker does that before
5864 adjust_dynamic_symbol is called, and it is that
5865 function which decides whether anything needs to go
5866 into these sections. */
5867 }
5868 else
5869 {
5870 if (s != htab->srelplt)
5871 relocs = TRUE;
5872
5873 /* We use the reloc_count field as a counter if we need
5874 to copy relocs into the output file. */
5875 s->reloc_count = 0;
5876 }
5877 }
5878 else
5879 {
5880 /* It's not one of our sections, so don't allocate space. */
5881 continue;
5882 }
5883
5884 if (s->_raw_size == 0)
5885 {
5886 _bfd_strip_section_from_output (info, s);
5887 continue;
5888 }
5889
5890 /* .plt is in the bss section. We don't initialise it. */
5891 if ((s->flags & SEC_LOAD) == 0)
5892 continue;
5893
5894 /* Allocate memory for the section contents. We use bfd_zalloc
5895 here in case unused entries are not reclaimed before the
5896 section's contents are written out. This should not happen,
5897 but this way if it does we get a R_PPC64_NONE reloc in .rela
5898 sections instead of garbage.
5899 We also rely on the section contents being zero when writing
5900 the GOT. */
5901 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
5902 if (s->contents == NULL)
5903 return FALSE;
5904 }
5905
5906 if (htab->elf.dynamic_sections_created)
5907 {
5908 /* Add some entries to the .dynamic section. We fill in the
5909 values later, in ppc64_elf_finish_dynamic_sections, but we
5910 must add the entries now so that we get the correct size for
5911 the .dynamic section. The DT_DEBUG entry is filled in by the
5912 dynamic linker and used by the debugger. */
5913 #define add_dynamic_entry(TAG, VAL) \
5914 bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
5915
5916 if (!info->shared)
5917 {
5918 if (!add_dynamic_entry (DT_DEBUG, 0))
5919 return FALSE;
5920 }
5921
5922 if (htab->splt != NULL && htab->splt->_raw_size != 0)
5923 {
5924 if (!add_dynamic_entry (DT_PLTGOT, 0)
5925 || !add_dynamic_entry (DT_PLTRELSZ, 0)
5926 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5927 || !add_dynamic_entry (DT_JMPREL, 0)
5928 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
5929 return FALSE;
5930 }
5931
5932 if (NO_OPD_RELOCS)
5933 {
5934 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
5935 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
5936 return FALSE;
5937 }
5938
5939 if (relocs)
5940 {
5941 if (!add_dynamic_entry (DT_RELA, 0)
5942 || !add_dynamic_entry (DT_RELASZ, 0)
5943 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
5944 return FALSE;
5945
5946 /* If any dynamic relocs apply to a read-only section,
5947 then we need a DT_TEXTREL entry. */
5948 if ((info->flags & DF_TEXTREL) == 0)
5949 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
5950 (PTR) info);
5951
5952 if ((info->flags & DF_TEXTREL) != 0)
5953 {
5954 if (!add_dynamic_entry (DT_TEXTREL, 0))
5955 return FALSE;
5956 }
5957 }
5958 }
5959 #undef add_dynamic_entry
5960
5961 return TRUE;
5962 }
5963
5964 /* Determine the type of stub needed, if any, for a call. */
5965
5966 static INLINE enum ppc_stub_type
5967 ppc_type_of_stub (input_sec, rel, hash, destination)
5968 asection *input_sec;
5969 const Elf_Internal_Rela *rel;
5970 struct ppc_link_hash_entry **hash;
5971 bfd_vma destination;
5972 {
5973 struct ppc_link_hash_entry *h = *hash;
5974 bfd_vma location;
5975 bfd_vma branch_offset;
5976 bfd_vma max_branch_offset;
5977 unsigned int r_type;
5978
5979 if (h != NULL)
5980 {
5981 if (h->oh != NULL
5982 && h->oh->dynindx != -1)
5983 {
5984 struct plt_entry *ent;
5985 for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next)
5986 if (ent->addend == rel->r_addend
5987 && ent->plt.offset != (bfd_vma) -1)
5988 {
5989 *hash = (struct ppc_link_hash_entry *) h->oh;
5990 return ppc_stub_plt_call;
5991 }
5992 }
5993
5994 if (h->elf.root.type == bfd_link_hash_undefweak
5995 || h->elf.root.type == bfd_link_hash_undefined)
5996 return ppc_stub_none;
5997 }
5998
5999 /* Determine where the call point is. */
6000 location = (input_sec->output_offset
6001 + input_sec->output_section->vma
6002 + rel->r_offset);
6003
6004 branch_offset = destination - location;
6005 r_type = ELF64_R_TYPE (rel->r_info);
6006
6007 /* Determine if a long branch stub is needed. */
6008 max_branch_offset = 1 << 25;
6009 if (r_type != (unsigned int) R_PPC64_REL24)
6010 max_branch_offset = 1 << 15;
6011
6012 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
6013 /* We need a stub. Figure out whether a long_branch or plt_branch
6014 is needed later. */
6015 return ppc_stub_long_branch;
6016
6017 return ppc_stub_none;
6018 }
6019
6020 /* Build a .plt call stub. */
6021
6022 static bfd_byte *
6023 build_plt_stub (obfd, p, offset, glink)
6024 bfd *obfd;
6025 bfd_byte *p;
6026 int offset;
6027 int glink;
6028 {
6029 #define PPC_LO(v) ((v) & 0xffff)
6030 #define PPC_HI(v) (((v) >> 16) & 0xffff)
6031 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
6032
6033 if (glink)
6034 bfd_put_32 (obfd, LD_R2_40R1, p), p += 4;
6035 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
6036 if (!glink)
6037 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
6038 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6039 if (PPC_HA (offset + 8) != PPC_HA (offset))
6040 bfd_put_32 (obfd, ADDIS_R12_R12_1, p), p += 4;
6041 offset += 8;
6042 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
6043 if (PPC_HA (offset + 8) != PPC_HA (offset))
6044 bfd_put_32 (obfd, ADDIS_R12_R12_1, p), p += 4;
6045 offset += 8;
6046 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
6047 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6048 bfd_put_32 (obfd, BCTR, p), p += 4;
6049 return p;
6050 }
6051
6052 static bfd_boolean
6053 ppc_build_one_stub (gen_entry, in_arg)
6054 struct bfd_hash_entry *gen_entry;
6055 PTR in_arg;
6056 {
6057 struct ppc_stub_hash_entry *stub_entry;
6058 struct ppc_branch_hash_entry *br_entry;
6059 struct bfd_link_info *info;
6060 struct ppc_link_hash_table *htab;
6061 asection *stub_sec;
6062 bfd *stub_bfd;
6063 bfd_byte *loc;
6064 bfd_byte *p;
6065 unsigned int indx;
6066 struct plt_entry *ent;
6067 bfd_vma off;
6068 int size;
6069
6070 /* Massage our args to the form they really have. */
6071 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
6072 info = (struct bfd_link_info *) in_arg;
6073
6074 htab = ppc_hash_table (info);
6075 stub_sec = stub_entry->stub_sec;
6076
6077 /* Make a note of the offset within the stubs for this entry. */
6078 stub_entry->stub_offset = stub_sec->_cooked_size;
6079 loc = stub_sec->contents + stub_entry->stub_offset;
6080
6081 stub_bfd = stub_sec->owner;
6082
6083 switch (stub_entry->stub_type)
6084 {
6085 case ppc_stub_long_branch:
6086 /* Branches are relative. This is where we are going to. */
6087 off = (stub_entry->target_value
6088 + stub_entry->target_section->output_offset
6089 + stub_entry->target_section->output_section->vma);
6090
6091 /* And this is where we are coming from. */
6092 off -= (stub_entry->stub_offset
6093 + stub_sec->output_offset
6094 + stub_sec->output_section->vma);
6095
6096 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
6097
6098 bfd_put_32 (stub_bfd, (bfd_vma) B_DOT | (off & 0x3fffffc), loc);
6099 size = 4;
6100 break;
6101
6102 case ppc_stub_plt_branch:
6103 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6104 stub_entry->root.string + 9,
6105 FALSE, FALSE);
6106 if (br_entry == NULL)
6107 {
6108 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
6109 stub_entry->root.string + 9);
6110 htab->stub_error = TRUE;
6111 return FALSE;
6112 }
6113
6114 off = (stub_entry->target_value
6115 + stub_entry->target_section->output_offset
6116 + stub_entry->target_section->output_section->vma);
6117
6118 bfd_put_64 (htab->sbrlt->owner, off,
6119 htab->sbrlt->contents + br_entry->offset);
6120
6121 if (info->shared)
6122 {
6123 /* Create a reloc for the branch lookup table entry. */
6124 Elf_Internal_Rela rela;
6125 bfd_byte *loc;
6126
6127 rela.r_offset = (br_entry->offset
6128 + htab->sbrlt->output_offset
6129 + htab->sbrlt->output_section->vma);
6130 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
6131 rela.r_addend = off;
6132
6133 loc = htab->srelbrlt->contents;
6134 loc += htab->srelbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
6135 bfd_elf64_swap_reloca_out (htab->srelbrlt->owner, &rela, loc);
6136 }
6137
6138 off = (br_entry->offset
6139 + htab->sbrlt->output_offset
6140 + htab->sbrlt->output_section->vma
6141 - elf_gp (htab->sbrlt->output_section->owner)
6142 - TOC_BASE_OFF);
6143
6144 if (off + 0x80000000 > 0xffffffff || (off & 7) != 0)
6145 {
6146 (*_bfd_error_handler)
6147 (_("linkage table error against `%s'"),
6148 stub_entry->root.string);
6149 bfd_set_error (bfd_error_bad_value);
6150 htab->stub_error = TRUE;
6151 return FALSE;
6152 }
6153
6154 indx = off;
6155 bfd_put_32 (stub_bfd, (bfd_vma) ADDIS_R12_R2 | PPC_HA (indx), loc);
6156 bfd_put_32 (stub_bfd, (bfd_vma) LD_R11_0R12 | PPC_LO (indx), loc + 4);
6157 bfd_put_32 (stub_bfd, (bfd_vma) MTCTR_R11, loc + 8);
6158 bfd_put_32 (stub_bfd, (bfd_vma) BCTR, loc + 12);
6159 size = 16;
6160 break;
6161
6162 case ppc_stub_plt_call:
6163 /* Do the best we can for shared libraries built without
6164 exporting ".foo" for each "foo". This can happen when symbol
6165 versioning scripts strip all bar a subset of symbols. */
6166 if (stub_entry->h->oh->root.type != bfd_link_hash_defined
6167 && stub_entry->h->oh->root.type != bfd_link_hash_defweak)
6168 {
6169 /* Point the symbol at the stub. There may be multiple stubs,
6170 we don't really care; The main thing is to make this sym
6171 defined somewhere. */
6172 stub_entry->h->oh->root.type = bfd_link_hash_defined;
6173 stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec;
6174 stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset;
6175 }
6176
6177 /* Now build the stub. */
6178 off = (bfd_vma) -1;
6179 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6180 if (ent->addend == stub_entry->addend)
6181 {
6182 off = ent->plt.offset;
6183 break;
6184 }
6185 if (off >= (bfd_vma) -2)
6186 abort ();
6187
6188 off &= ~ (bfd_vma) 1;
6189 off += (htab->splt->output_offset
6190 + htab->splt->output_section->vma
6191 - elf_gp (htab->splt->output_section->owner)
6192 - TOC_BASE_OFF);
6193
6194 if (off + 0x80000000 > 0xffffffff || (off & 7) != 0)
6195 {
6196 (*_bfd_error_handler)
6197 (_("linkage table error against `%s'"),
6198 stub_entry->h->elf.root.root.string);
6199 bfd_set_error (bfd_error_bad_value);
6200 htab->stub_error = TRUE;
6201 return FALSE;
6202 }
6203
6204 p = build_plt_stub (stub_bfd, loc, (int) off, 0);
6205 size = p - loc;
6206 break;
6207
6208 default:
6209 BFD_FAIL ();
6210 return FALSE;
6211 }
6212
6213 stub_sec->_cooked_size += size;
6214 return TRUE;
6215 }
6216
6217 /* As above, but don't actually build the stub. Just bump offset so
6218 we know stub section sizes, and select plt_branch stubs where
6219 long_branch stubs won't do. */
6220
6221 static bfd_boolean
6222 ppc_size_one_stub (gen_entry, in_arg)
6223 struct bfd_hash_entry *gen_entry;
6224 PTR in_arg;
6225 {
6226 struct ppc_stub_hash_entry *stub_entry;
6227 struct ppc_link_hash_table *htab;
6228 bfd_vma off;
6229 int size;
6230
6231 /* Massage our args to the form they really have. */
6232 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
6233 htab = (struct ppc_link_hash_table *) in_arg;
6234
6235 if (stub_entry->stub_type == ppc_stub_plt_call)
6236 {
6237 struct plt_entry *ent;
6238 off = (bfd_vma) -1;
6239 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6240 if (ent->addend == stub_entry->addend)
6241 {
6242 off = ent->plt.offset & ~(bfd_vma) 1;
6243 break;
6244 }
6245 if (off >= (bfd_vma) -2)
6246 abort ();
6247 off += (htab->splt->output_offset
6248 + htab->splt->output_section->vma
6249 - elf_gp (htab->splt->output_section->owner)
6250 - TOC_BASE_OFF);
6251
6252 size = 28;
6253 if (PPC_HA ((int) off + 16) != PPC_HA ((int) off))
6254 size += 4;
6255 }
6256 else
6257 {
6258 /* ppc_stub_long_branch or ppc_stub_plt_branch. */
6259 stub_entry->stub_type = ppc_stub_long_branch;
6260 size = 4;
6261
6262 off = (stub_entry->target_value
6263 + stub_entry->target_section->output_offset
6264 + stub_entry->target_section->output_section->vma);
6265 off -= (stub_entry->stub_sec->_raw_size
6266 + stub_entry->stub_sec->output_offset
6267 + stub_entry->stub_sec->output_section->vma);
6268
6269 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
6270 {
6271 struct ppc_branch_hash_entry *br_entry;
6272
6273 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6274 stub_entry->root.string + 9,
6275 TRUE, FALSE);
6276 if (br_entry == NULL)
6277 {
6278 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
6279 stub_entry->root.string + 9);
6280 htab->stub_error = TRUE;
6281 return FALSE;
6282 }
6283
6284 if (br_entry->iter != htab->stub_iteration)
6285 {
6286 br_entry->iter = htab->stub_iteration;
6287 br_entry->offset = htab->sbrlt->_raw_size;
6288 htab->sbrlt->_raw_size += 8;
6289 }
6290 stub_entry->stub_type = ppc_stub_plt_branch;
6291 size = 16;
6292 }
6293 }
6294
6295 stub_entry->stub_sec->_raw_size += size;
6296 return TRUE;
6297 }
6298
6299 /* Set up various things so that we can make a list of input sections
6300 for each output section included in the link. Returns -1 on error,
6301 0 when no stubs will be needed, and 1 on success. */
6302
6303 int
6304 ppc64_elf_setup_section_lists (output_bfd, info)
6305 bfd *output_bfd;
6306 struct bfd_link_info *info;
6307 {
6308 bfd *input_bfd;
6309 int top_id, top_index;
6310 asection *section;
6311 asection **input_list, **list;
6312 bfd_size_type amt;
6313 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6314
6315 if (htab->elf.root.creator->flavour != bfd_target_elf_flavour
6316 || htab->sbrlt == NULL)
6317 return 0;
6318
6319 /* Find the top input section id. */
6320 for (input_bfd = info->input_bfds, top_id = 0;
6321 input_bfd != NULL;
6322 input_bfd = input_bfd->link_next)
6323 {
6324 for (section = input_bfd->sections;
6325 section != NULL;
6326 section = section->next)
6327 {
6328 if (top_id < section->id)
6329 top_id = section->id;
6330 }
6331 }
6332
6333 amt = sizeof (struct map_stub) * (top_id + 1);
6334 htab->stub_group = (struct map_stub *) bfd_zmalloc (amt);
6335 if (htab->stub_group == NULL)
6336 return -1;
6337
6338 /* We can't use output_bfd->section_count here to find the top output
6339 section index as some sections may have been removed, and
6340 _bfd_strip_section_from_output doesn't renumber the indices. */
6341 for (section = output_bfd->sections, top_index = 0;
6342 section != NULL;
6343 section = section->next)
6344 {
6345 if (top_index < section->index)
6346 top_index = section->index;
6347 }
6348
6349 htab->top_index = top_index;
6350 amt = sizeof (asection *) * (top_index + 1);
6351 input_list = (asection **) bfd_malloc (amt);
6352 htab->input_list = input_list;
6353 if (input_list == NULL)
6354 return -1;
6355
6356 /* For sections we aren't interested in, mark their entries with a
6357 value we can check later. */
6358 list = input_list + top_index;
6359 do
6360 *list = bfd_abs_section_ptr;
6361 while (list-- != input_list);
6362
6363 for (section = output_bfd->sections;
6364 section != NULL;
6365 section = section->next)
6366 {
6367 if ((section->flags & SEC_CODE) != 0)
6368 input_list[section->index] = NULL;
6369 }
6370
6371 return 1;
6372 }
6373
6374 /* The linker repeatedly calls this function for each input section,
6375 in the order that input sections are linked into output sections.
6376 Build lists of input sections to determine groupings between which
6377 we may insert linker stubs. */
6378
6379 void
6380 ppc64_elf_next_input_section (info, isec)
6381 struct bfd_link_info *info;
6382 asection *isec;
6383 {
6384 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6385
6386 if (isec->output_section->index <= htab->top_index)
6387 {
6388 asection **list = htab->input_list + isec->output_section->index;
6389 if (*list != bfd_abs_section_ptr)
6390 {
6391 /* Steal the link_sec pointer for our list. */
6392 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
6393 /* This happens to make the list in reverse order,
6394 which is what we want. */
6395 PREV_SEC (isec) = *list;
6396 *list = isec;
6397 }
6398 }
6399 }
6400
6401 /* See whether we can group stub sections together. Grouping stub
6402 sections may result in fewer stubs. More importantly, we need to
6403 put all .init* and .fini* stubs at the beginning of the .init or
6404 .fini output sections respectively, because glibc splits the
6405 _init and _fini functions into multiple parts. Putting a stub in
6406 the middle of a function is not a good idea. */
6407
6408 static void
6409 group_sections (htab, stub_group_size, stubs_always_before_branch)
6410 struct ppc_link_hash_table *htab;
6411 bfd_size_type stub_group_size;
6412 bfd_boolean stubs_always_before_branch;
6413 {
6414 asection **list = htab->input_list + htab->top_index;
6415 do
6416 {
6417 asection *tail = *list;
6418 if (tail == bfd_abs_section_ptr)
6419 continue;
6420 while (tail != NULL)
6421 {
6422 asection *curr;
6423 asection *prev;
6424 bfd_size_type total;
6425 bfd_boolean big_sec;
6426
6427 curr = tail;
6428 if (tail->_cooked_size)
6429 total = tail->_cooked_size;
6430 else
6431 total = tail->_raw_size;
6432 big_sec = total >= stub_group_size;
6433
6434 while ((prev = PREV_SEC (curr)) != NULL
6435 && ((total += curr->output_offset - prev->output_offset)
6436 < stub_group_size))
6437 curr = prev;
6438
6439 /* OK, the size from the start of CURR to the end is less
6440 than stub_group_size and thus can be handled by one stub
6441 section. (or the tail section is itself larger than
6442 stub_group_size, in which case we may be toast.) We
6443 should really be keeping track of the total size of stubs
6444 added here, as stubs contribute to the final output
6445 section size. That's a little tricky, and this way will
6446 only break if stubs added make the total size more than
6447 2^25, ie. for the default stub_group_size, if stubs total
6448 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6449 do
6450 {
6451 prev = PREV_SEC (tail);
6452 /* Set up this stub group. */
6453 htab->stub_group[tail->id].link_sec = curr;
6454 }
6455 while (tail != curr && (tail = prev) != NULL);
6456
6457 /* But wait, there's more! Input sections up to stub_group_size
6458 bytes before the stub section can be handled by it too.
6459 Don't do this if we have a really large section after the
6460 stubs, as adding more stubs increases the chance that
6461 branches may not reach into the stub section. */
6462 if (!stubs_always_before_branch && !big_sec)
6463 {
6464 total = 0;
6465 while (prev != NULL
6466 && ((total += tail->output_offset - prev->output_offset)
6467 < stub_group_size))
6468 {
6469 tail = prev;
6470 prev = PREV_SEC (tail);
6471 htab->stub_group[tail->id].link_sec = curr;
6472 }
6473 }
6474 tail = prev;
6475 }
6476 }
6477 while (list-- != htab->input_list);
6478 free (htab->input_list);
6479 #undef PREV_SEC
6480 }
6481
6482 /* Determine and set the size of the stub section for a final link.
6483
6484 The basic idea here is to examine all the relocations looking for
6485 PC-relative calls to a target that is unreachable with a "bl"
6486 instruction. */
6487
6488 bfd_boolean
6489 ppc64_elf_size_stubs (output_bfd, stub_bfd, info, group_size,
6490 add_stub_section, layout_sections_again)
6491 bfd *output_bfd;
6492 bfd *stub_bfd;
6493 struct bfd_link_info *info;
6494 bfd_signed_vma group_size;
6495 asection * (*add_stub_section) PARAMS ((const char *, asection *));
6496 void (*layout_sections_again) PARAMS ((void));
6497 {
6498 bfd_size_type stub_group_size;
6499 bfd_boolean stubs_always_before_branch;
6500 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6501
6502 /* Stash our params away. */
6503 htab->stub_bfd = stub_bfd;
6504 htab->add_stub_section = add_stub_section;
6505 htab->layout_sections_again = layout_sections_again;
6506 stubs_always_before_branch = group_size < 0;
6507 if (group_size < 0)
6508 stub_group_size = -group_size;
6509 else
6510 stub_group_size = group_size;
6511 if (stub_group_size == 1)
6512 {
6513 /* Default values. */
6514 if (stubs_always_before_branch)
6515 {
6516 stub_group_size = 0x1e00000;
6517 if (htab->has_14bit_branch)
6518 stub_group_size = 0x7800;
6519 }
6520 else
6521 {
6522 stub_group_size = 0x1c00000;
6523 if (htab->has_14bit_branch)
6524 stub_group_size = 0x7000;
6525 }
6526 }
6527
6528 group_sections (htab, stub_group_size, stubs_always_before_branch);
6529
6530 while (1)
6531 {
6532 bfd *input_bfd;
6533 unsigned int bfd_indx;
6534 asection *stub_sec;
6535 bfd_boolean stub_changed;
6536
6537 htab->stub_iteration += 1;
6538 stub_changed = FALSE;
6539
6540 for (input_bfd = info->input_bfds, bfd_indx = 0;
6541 input_bfd != NULL;
6542 input_bfd = input_bfd->link_next, bfd_indx++)
6543 {
6544 Elf_Internal_Shdr *symtab_hdr;
6545 asection *section;
6546 Elf_Internal_Sym *local_syms = NULL;
6547
6548 /* We'll need the symbol table in a second. */
6549 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6550 if (symtab_hdr->sh_info == 0)
6551 continue;
6552
6553 /* Walk over each section attached to the input bfd. */
6554 for (section = input_bfd->sections;
6555 section != NULL;
6556 section = section->next)
6557 {
6558 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
6559
6560 /* If there aren't any relocs, then there's nothing more
6561 to do. */
6562 if ((section->flags & SEC_RELOC) == 0
6563 || section->reloc_count == 0)
6564 continue;
6565
6566 /* If this section is a link-once section that will be
6567 discarded, then don't create any stubs. */
6568 if (section->output_section == NULL
6569 || section->output_section->owner != output_bfd)
6570 continue;
6571
6572 /* Get the relocs. */
6573 internal_relocs
6574 = _bfd_elf64_link_read_relocs (input_bfd, section, NULL,
6575 (Elf_Internal_Rela *) NULL,
6576 info->keep_memory);
6577 if (internal_relocs == NULL)
6578 goto error_ret_free_local;
6579
6580 /* Now examine each relocation. */
6581 irela = internal_relocs;
6582 irelaend = irela + section->reloc_count;
6583 for (; irela < irelaend; irela++)
6584 {
6585 unsigned int r_type, r_indx;
6586 enum ppc_stub_type stub_type;
6587 struct ppc_stub_hash_entry *stub_entry;
6588 asection *sym_sec;
6589 bfd_vma sym_value;
6590 bfd_vma destination;
6591 struct ppc_link_hash_entry *hash;
6592 struct elf_link_hash_entry *h;
6593 Elf_Internal_Sym *sym;
6594 char *stub_name;
6595 const asection *id_sec;
6596
6597 r_type = ELF64_R_TYPE (irela->r_info);
6598 r_indx = ELF64_R_SYM (irela->r_info);
6599
6600 if (r_type >= (unsigned int) R_PPC64_max)
6601 {
6602 bfd_set_error (bfd_error_bad_value);
6603 goto error_ret_free_internal;
6604 }
6605
6606 /* Only look for stubs on branch instructions. */
6607 if (r_type != (unsigned int) R_PPC64_REL24
6608 && r_type != (unsigned int) R_PPC64_REL14
6609 && r_type != (unsigned int) R_PPC64_REL14_BRTAKEN
6610 && r_type != (unsigned int) R_PPC64_REL14_BRNTAKEN)
6611 continue;
6612
6613 /* Now determine the call target, its name, value,
6614 section. */
6615 destination = 0;
6616 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6617 r_indx, input_bfd))
6618 goto error_ret_free_internal;
6619 hash = (struct ppc_link_hash_entry *) h;
6620
6621 if (hash == NULL)
6622 {
6623 /* It's a local symbol. */
6624 sym_value = sym->st_value;
6625 destination = (sym_value + irela->r_addend
6626 + sym_sec->output_offset
6627 + sym_sec->output_section->vma);
6628 }
6629 else
6630 {
6631 /* It's an external symbol. */
6632 sym_value = 0;
6633 if (hash->elf.root.type == bfd_link_hash_defined
6634 || hash->elf.root.type == bfd_link_hash_defweak)
6635 {
6636 sym_value = hash->elf.root.u.def.value;
6637 if (sym_sec->output_section != NULL)
6638 destination = (sym_value + irela->r_addend
6639 + sym_sec->output_offset
6640 + sym_sec->output_section->vma);
6641 }
6642 else if (hash->elf.root.type == bfd_link_hash_undefweak)
6643 ;
6644 else if (hash->elf.root.type == bfd_link_hash_undefined)
6645 ;
6646 else
6647 {
6648 bfd_set_error (bfd_error_bad_value);
6649 goto error_ret_free_internal;
6650 }
6651 }
6652
6653 /* Determine what (if any) linker stub is needed. */
6654 stub_type = ppc_type_of_stub (section, irela, &hash,
6655 destination);
6656 if (stub_type == ppc_stub_none)
6657 continue;
6658
6659 /* __tls_get_addr calls might be eliminated. */
6660 if (stub_type != ppc_stub_plt_call
6661 && hash != NULL
6662 && &hash->elf == htab->tls_get_addr
6663 && section->has_tls_reloc
6664 && irela != internal_relocs)
6665 {
6666 /* Get tls info. */
6667 char *tls_mask;
6668
6669 if (!get_tls_mask (&tls_mask, &local_syms,
6670 irela - 1, input_bfd))
6671 goto error_ret_free_internal;
6672 if (*tls_mask != 0)
6673 continue;
6674 }
6675
6676 /* Support for grouping stub sections. */
6677 id_sec = htab->stub_group[section->id].link_sec;
6678
6679 /* Get the name of this stub. */
6680 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
6681 if (!stub_name)
6682 goto error_ret_free_internal;
6683
6684 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
6685 stub_name, FALSE, FALSE);
6686 if (stub_entry != NULL)
6687 {
6688 /* The proper stub has already been created. */
6689 free (stub_name);
6690 continue;
6691 }
6692
6693 stub_entry = ppc_add_stub (stub_name, section, htab);
6694 if (stub_entry == NULL)
6695 {
6696 free (stub_name);
6697 error_ret_free_internal:
6698 if (elf_section_data (section)->relocs == NULL)
6699 free (internal_relocs);
6700 error_ret_free_local:
6701 if (local_syms != NULL
6702 && (symtab_hdr->contents
6703 != (unsigned char *) local_syms))
6704 free (local_syms);
6705 return FALSE;
6706 }
6707
6708 stub_entry->target_value = sym_value;
6709 stub_entry->target_section = sym_sec;
6710 stub_entry->stub_type = stub_type;
6711 stub_entry->h = hash;
6712 stub_entry->addend = irela->r_addend;
6713 stub_changed = TRUE;
6714 }
6715
6716 /* We're done with the internal relocs, free them. */
6717 if (elf_section_data (section)->relocs != internal_relocs)
6718 free (internal_relocs);
6719 }
6720
6721 if (local_syms != NULL
6722 && symtab_hdr->contents != (unsigned char *) local_syms)
6723 {
6724 if (!info->keep_memory)
6725 free (local_syms);
6726 else
6727 symtab_hdr->contents = (unsigned char *) local_syms;
6728 }
6729 }
6730
6731 if (!stub_changed)
6732 break;
6733
6734 /* OK, we've added some stubs. Find out the new size of the
6735 stub sections. */
6736 for (stub_sec = htab->stub_bfd->sections;
6737 stub_sec != NULL;
6738 stub_sec = stub_sec->next)
6739 {
6740 stub_sec->_raw_size = 0;
6741 stub_sec->_cooked_size = 0;
6742 }
6743 htab->sbrlt->_raw_size = 0;
6744 htab->sbrlt->_cooked_size = 0;
6745
6746 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab);
6747
6748 /* Ask the linker to do its stuff. */
6749 (*htab->layout_sections_again) ();
6750 }
6751
6752 /* It would be nice to strip .branch_lt from the output if the
6753 section is empty, but it's too late. If we strip sections here,
6754 the dynamic symbol table is corrupted since the section symbol
6755 for the stripped section isn't written. */
6756
6757 return TRUE;
6758 }
6759
6760 /* Called after we have determined section placement. If sections
6761 move, we'll be called again. Provide a value for TOCstart. */
6762
6763 bfd_vma
6764 ppc64_elf_toc (obfd)
6765 bfd *obfd;
6766 {
6767 asection *s;
6768 bfd_vma TOCstart;
6769
6770 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
6771 order. The TOC starts where the first of these sections starts. */
6772 s = bfd_get_section_by_name (obfd, ".got");
6773 if (s == NULL)
6774 s = bfd_get_section_by_name (obfd, ".toc");
6775 if (s == NULL)
6776 s = bfd_get_section_by_name (obfd, ".tocbss");
6777 if (s == NULL)
6778 s = bfd_get_section_by_name (obfd, ".plt");
6779 if (s == NULL)
6780 {
6781 /* This may happen for
6782 o references to TOC base (SYM@toc / TOC[tc0]) without a
6783 .toc directive
6784 o bad linker script
6785 o --gc-sections and empty TOC sections
6786
6787 FIXME: Warn user? */
6788
6789 /* Look for a likely section. We probably won't even be
6790 using TOCstart. */
6791 for (s = obfd->sections; s != NULL; s = s->next)
6792 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
6793 == (SEC_ALLOC | SEC_SMALL_DATA))
6794 break;
6795 if (s == NULL)
6796 for (s = obfd->sections; s != NULL; s = s->next)
6797 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
6798 == (SEC_ALLOC | SEC_SMALL_DATA))
6799 break;
6800 if (s == NULL)
6801 for (s = obfd->sections; s != NULL; s = s->next)
6802 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
6803 break;
6804 if (s == NULL)
6805 for (s = obfd->sections; s != NULL; s = s->next)
6806 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
6807 break;
6808 }
6809
6810 TOCstart = 0;
6811 if (s != NULL)
6812 TOCstart = s->output_section->vma + s->output_offset;
6813
6814 return TOCstart;
6815 }
6816
6817 /* Build all the stubs associated with the current output file.
6818 The stubs are kept in a hash table attached to the main linker
6819 hash table. This function is called via gldelf64ppc_finish. */
6820
6821 bfd_boolean
6822 ppc64_elf_build_stubs (info)
6823 struct bfd_link_info *info;
6824 {
6825 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6826 asection *stub_sec;
6827 bfd_vma plt_r2;
6828 bfd_byte *p;
6829
6830 for (stub_sec = htab->stub_bfd->sections;
6831 stub_sec != NULL;
6832 stub_sec = stub_sec->next)
6833 {
6834 bfd_size_type size;
6835
6836 /* Allocate memory to hold the linker stubs. */
6837 size = stub_sec->_raw_size;
6838 if (size != 0)
6839 {
6840 stub_sec->contents = (bfd_byte *) bfd_zalloc (htab->stub_bfd, size);
6841 if (stub_sec->contents == NULL)
6842 return FALSE;
6843 }
6844 stub_sec->_cooked_size = 0;
6845 }
6846
6847 if (htab->splt != NULL)
6848 {
6849 unsigned int indx;
6850
6851 /* Build the .glink plt call stub. */
6852 plt_r2 = (htab->splt->output_offset
6853 + htab->splt->output_section->vma
6854 - elf_gp (htab->splt->output_section->owner)
6855 - TOC_BASE_OFF);
6856 p = htab->sglink->contents;
6857 p = build_plt_stub (htab->sglink->owner, p, (int) plt_r2, 1);
6858 while (p < htab->sglink->contents + GLINK_CALL_STUB_SIZE)
6859 {
6860 bfd_put_32 (htab->sglink->owner, NOP, p);
6861 p += 4;
6862 }
6863
6864 /* Build the .glink lazy link call stubs. */
6865 indx = 0;
6866 while (p < htab->sglink->contents + htab->sglink->_raw_size)
6867 {
6868 if (indx < 0x8000)
6869 {
6870 bfd_put_32 (htab->sglink->owner, LI_R0_0 | indx, p);
6871 p += 4;
6872 }
6873 else
6874 {
6875 bfd_put_32 (htab->sglink->owner, LIS_R0_0 | PPC_HI (indx), p);
6876 p += 4;
6877 bfd_put_32 (htab->sglink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
6878 p += 4;
6879 }
6880 bfd_put_32 (htab->sglink->owner,
6881 B_DOT | ((htab->sglink->contents - p) & 0x3fffffc), p);
6882 indx++;
6883 p += 4;
6884 }
6885 htab->sglink->_cooked_size = p - htab->sglink->contents;
6886 }
6887
6888 if (htab->sbrlt->_raw_size != 0)
6889 {
6890 htab->sbrlt->contents = (bfd_byte *) bfd_zalloc (htab->sbrlt->owner,
6891 htab->sbrlt->_raw_size);
6892 if (htab->sbrlt->contents == NULL)
6893 return FALSE;
6894 }
6895
6896 /* Build the stubs as directed by the stub hash table. */
6897 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
6898
6899 for (stub_sec = htab->stub_bfd->sections;
6900 stub_sec != NULL;
6901 stub_sec = stub_sec->next)
6902 {
6903 if (stub_sec->_raw_size != stub_sec->_cooked_size)
6904 break;
6905 }
6906
6907 if (stub_sec != NULL
6908 || htab->sglink->_raw_size != htab->sglink->_cooked_size)
6909 {
6910 htab->stub_error = TRUE;
6911 (*_bfd_error_handler) (_("stubs don't match calculated size"));
6912 }
6913
6914 return !htab->stub_error;
6915 }
6916
6917 /* The RELOCATE_SECTION function is called by the ELF backend linker
6918 to handle the relocations for a section.
6919
6920 The relocs are always passed as Rela structures; if the section
6921 actually uses Rel structures, the r_addend field will always be
6922 zero.
6923
6924 This function is responsible for adjust the section contents as
6925 necessary, and (if using Rela relocs and generating a
6926 relocateable output file) adjusting the reloc addend as
6927 necessary.
6928
6929 This function does not have to worry about setting the reloc
6930 address or the reloc symbol index.
6931
6932 LOCAL_SYMS is a pointer to the swapped in local symbols.
6933
6934 LOCAL_SECTIONS is an array giving the section in the input file
6935 corresponding to the st_shndx field of each local symbol.
6936
6937 The global hash table entry for the global symbols can be found
6938 via elf_sym_hashes (input_bfd).
6939
6940 When generating relocateable output, this function must handle
6941 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
6942 going to be the section symbol corresponding to the output
6943 section, which means that the addend must be adjusted
6944 accordingly. */
6945
6946 static bfd_boolean
6947 ppc64_elf_relocate_section (output_bfd, info, input_bfd, input_section,
6948 contents, relocs, local_syms, local_sections)
6949 bfd *output_bfd;
6950 struct bfd_link_info *info;
6951 bfd *input_bfd;
6952 asection *input_section;
6953 bfd_byte *contents;
6954 Elf_Internal_Rela *relocs;
6955 Elf_Internal_Sym *local_syms;
6956 asection **local_sections;
6957 {
6958 struct ppc_link_hash_table *htab;
6959 Elf_Internal_Shdr *symtab_hdr;
6960 struct elf_link_hash_entry **sym_hashes;
6961 Elf_Internal_Rela *rel;
6962 Elf_Internal_Rela *relend;
6963 Elf_Internal_Rela outrel;
6964 bfd_byte *loc;
6965 struct got_entry **local_got_ents;
6966 bfd_vma TOCstart;
6967 bfd_boolean ret = TRUE;
6968 bfd_boolean is_opd;
6969 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
6970 bfd_boolean is_power4 = FALSE;
6971
6972 if (info->relocateable)
6973 return TRUE;
6974
6975 /* Initialize howto table if needed. */
6976 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
6977 ppc_howto_init ();
6978
6979 htab = ppc_hash_table (info);
6980 local_got_ents = elf_local_got_ents (input_bfd);
6981 TOCstart = elf_gp (output_bfd);
6982 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6983 sym_hashes = elf_sym_hashes (input_bfd);
6984 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
6985
6986 rel = relocs;
6987 relend = relocs + input_section->reloc_count;
6988 for (; rel < relend; rel++)
6989 {
6990 enum elf_ppc64_reloc_type r_type;
6991 bfd_vma addend;
6992 bfd_reloc_status_type r;
6993 Elf_Internal_Sym *sym;
6994 asection *sec;
6995 struct elf_link_hash_entry *h;
6996 struct elf_link_hash_entry *fdh;
6997 const char *sym_name;
6998 unsigned long r_symndx;
6999 char tls_mask, tls_gd, tls_type;
7000 bfd_vma relocation;
7001 bfd_boolean unresolved_reloc;
7002 bfd_boolean warned;
7003 long insn;
7004 struct ppc_stub_hash_entry *stub_entry;
7005 bfd_vma max_br_offset;
7006 bfd_vma from;
7007
7008 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info);
7009 r_symndx = ELF64_R_SYM (rel->r_info);
7010 sym = (Elf_Internal_Sym *) 0;
7011 sec = (asection *) 0;
7012 h = (struct elf_link_hash_entry *) 0;
7013 sym_name = (const char *) 0;
7014 unresolved_reloc = FALSE;
7015 warned = FALSE;
7016
7017 if (r_type == R_PPC64_TOC)
7018 {
7019 /* Relocation value is TOC base. Symbol is ignored. */
7020 relocation = TOCstart + TOC_BASE_OFF;
7021 }
7022 else if (r_symndx < symtab_hdr->sh_info)
7023 {
7024 /* It's a local symbol. */
7025 sym = local_syms + r_symndx;
7026 sec = local_sections[r_symndx];
7027 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
7028 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
7029 if (elf_section_data (sec) != NULL)
7030 {
7031 long *opd_sym_adjust;
7032
7033 opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust;
7034 if (opd_sym_adjust != NULL && sym->st_value % 24 == 0)
7035 relocation += opd_sym_adjust[sym->st_value / 24];
7036 }
7037 }
7038 else
7039 {
7040 /* It's a global symbol. */
7041 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
7042 while (h->root.type == bfd_link_hash_indirect
7043 || h->root.type == bfd_link_hash_warning)
7044 h = (struct elf_link_hash_entry *) h->root.u.i.link;
7045 sym_name = h->root.root.string;
7046 relocation = 0;
7047 if (h->root.type == bfd_link_hash_defined
7048 || h->root.type == bfd_link_hash_defweak)
7049 {
7050 sec = h->root.u.def.section;
7051 if (sec->output_section == NULL)
7052 /* Set a flag that will be cleared later if we find a
7053 relocation value for this symbol. output_section
7054 is typically NULL for symbols satisfied by a shared
7055 library. */
7056 unresolved_reloc = TRUE;
7057 else
7058 relocation = (h->root.u.def.value
7059 + sec->output_section->vma
7060 + sec->output_offset);
7061 }
7062 else if (h->root.type == bfd_link_hash_undefweak)
7063 ;
7064 else if (info->shared
7065 && !info->no_undefined
7066 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
7067 ;
7068 else
7069 {
7070 if (! ((*info->callbacks->undefined_symbol)
7071 (info, h->root.root.string, input_bfd, input_section,
7072 rel->r_offset, (!info->shared
7073 || info->no_undefined
7074 || ELF_ST_VISIBILITY (h->other)))))
7075 return FALSE;
7076 warned = TRUE;
7077 }
7078 }
7079
7080 /* TLS optimizations. Replace instruction sequences and relocs
7081 based on information we collected in tls_optimize. We edit
7082 RELOCS so that --emit-relocs will output something sensible
7083 for the final instruction stream. */
7084 tls_mask = 0;
7085 tls_gd = 0;
7086 if (IS_PPC64_TLS_RELOC (r_type))
7087 {
7088 if (h != NULL)
7089 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
7090 else if (local_got_ents != NULL)
7091 {
7092 char *lgot_masks;
7093 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
7094 tls_mask = lgot_masks[r_symndx];
7095 }
7096 }
7097
7098 /* Ensure reloc mapping code below stays sane. */
7099 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
7100 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
7101 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
7102 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
7103 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
7104 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
7105 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
7106 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
7107 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
7108 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
7109 abort ();
7110 switch (r_type)
7111 {
7112 default:
7113 break;
7114
7115 case R_PPC64_TOC16:
7116 case R_PPC64_TOC16_LO:
7117 case R_PPC64_TOC16_DS:
7118 case R_PPC64_TOC16_LO_DS:
7119 {
7120 /* Check for toc tls entries. */
7121 char *toc_tls;
7122 int retval;
7123
7124 retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd);
7125 if (retval == 0)
7126 return FALSE;
7127
7128 if (toc_tls)
7129 {
7130 tls_mask = *toc_tls;
7131 if (r_type == R_PPC64_TOC16_DS
7132 || r_type == R_PPC64_TOC16_LO_DS)
7133 goto toctprel;
7134 else
7135 {
7136 /* If we found a GD reloc pair, then we might be
7137 doing a GD->IE transition. */
7138 if (retval == 2)
7139 {
7140 tls_gd = TLS_TPRELGD;
7141 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7142 goto tls_get_addr_check;
7143 }
7144 else if (retval == 3)
7145 {
7146 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7147 goto tls_get_addr_check;
7148 }
7149 }
7150 }
7151 }
7152 break;
7153
7154 case R_PPC64_GOT_TPREL16_DS:
7155 case R_PPC64_GOT_TPREL16_LO_DS:
7156 toctprel:
7157 if (tls_mask != 0
7158 && (tls_mask & TLS_TPREL) == 0)
7159 {
7160 bfd_vma insn;
7161 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
7162 insn &= 31 << 21;
7163 insn |= 0x3c0d0000; /* addis 0,13,0 */
7164 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
7165 r_type = R_PPC64_TPREL16_HA;
7166 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7167 }
7168 break;
7169
7170 case R_PPC64_TLS:
7171 if (tls_mask == 0)
7172 {
7173 /* Check for toc tls entries. */
7174 char *toc_tls;
7175
7176 if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd))
7177 return FALSE;
7178
7179 if (toc_tls)
7180 tls_mask = *toc_tls;
7181 }
7182 if (tls_mask != 0
7183 && (tls_mask & TLS_TPREL) == 0)
7184 {
7185 bfd_vma insn, rtra;
7186 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
7187 if ((insn & ((31 << 26) | (31 << 11)))
7188 == ((31 << 26) | (13 << 11)))
7189 rtra = insn & ((1 << 26) - (1 << 16));
7190 else if ((insn & ((31 << 26) | (31 << 16)))
7191 == ((31 << 26) | (13 << 16)))
7192 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
7193 else
7194 abort ();
7195 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
7196 /* add -> addi. */
7197 insn = 14 << 26;
7198 else if ((insn & (31 << 1)) == 23 << 1
7199 && ((insn & (31 << 6)) < 14 << 6
7200 || ((insn & (31 << 6)) >= 16 << 6
7201 && (insn & (31 << 6)) < 24 << 6)))
7202 /* load and store indexed -> dform. */
7203 insn = (32 | ((insn >> 6) & 31)) << 26;
7204 else if ((insn & (31 << 1)) == 21 << 1
7205 && (insn & (0x1a << 6)) == 0)
7206 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7207 insn = (((58 | ((insn >> 6) & 4)) << 26)
7208 | ((insn >> 6) & 1));
7209 else if ((insn & (31 << 1)) == 21 << 1
7210 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
7211 /* lwax -> lwa. */
7212 insn = (58 << 26) | 2;
7213 else
7214 abort ();
7215 insn |= rtra;
7216 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
7217 r_type = R_PPC64_TPREL16_LO;
7218 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7219 /* Was PPC64_TLS which sits on insn boundary, now
7220 PPC64_TPREL16_LO which is at insn+2. */
7221 rel->r_offset += 2;
7222 }
7223 break;
7224
7225 case R_PPC64_GOT_TLSGD16_HI:
7226 case R_PPC64_GOT_TLSGD16_HA:
7227 tls_gd = TLS_TPRELGD;
7228 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7229 goto tls_gdld_hi;
7230 break;
7231
7232 case R_PPC64_GOT_TLSLD16_HI:
7233 case R_PPC64_GOT_TLSLD16_HA:
7234 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7235 {
7236 tls_gdld_hi:
7237 if ((tls_mask & tls_gd) != 0)
7238 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7239 + R_PPC64_GOT_TPREL16_DS);
7240 else
7241 {
7242 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7243 rel->r_offset -= 2;
7244 r_type = R_PPC64_NONE;
7245 }
7246 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7247 }
7248 break;
7249
7250 case R_PPC64_GOT_TLSGD16:
7251 case R_PPC64_GOT_TLSGD16_LO:
7252 tls_gd = TLS_TPRELGD;
7253 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7254 goto tls_get_addr_check;
7255 break;
7256
7257 case R_PPC64_GOT_TLSLD16:
7258 case R_PPC64_GOT_TLSLD16_LO:
7259 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7260 {
7261 tls_get_addr_check:
7262 if (rel + 1 < relend)
7263 {
7264 enum elf_ppc64_reloc_type r_type2;
7265 unsigned long r_symndx2;
7266 struct elf_link_hash_entry *h2;
7267 bfd_vma insn1, insn2, insn3;
7268 bfd_vma offset;
7269
7270 /* The next instruction should be a call to
7271 __tls_get_addr. Peek at the reloc to be sure. */
7272 r_type2
7273 = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel[1].r_info);
7274 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7275 if (r_symndx2 < symtab_hdr->sh_info
7276 || (r_type2 != R_PPC64_REL14
7277 && r_type2 != R_PPC64_REL14_BRTAKEN
7278 && r_type2 != R_PPC64_REL14_BRNTAKEN
7279 && r_type2 != R_PPC64_REL24))
7280 break;
7281
7282 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7283 while (h2->root.type == bfd_link_hash_indirect
7284 || h2->root.type == bfd_link_hash_warning)
7285 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
7286 if (h2 == NULL || h2 != htab->tls_get_addr)
7287 break;
7288
7289 /* OK, it checks out. Replace the call. */
7290 offset = rel[1].r_offset;
7291 insn1 = bfd_get_32 (output_bfd,
7292 contents + rel->r_offset - 2);
7293 insn3 = bfd_get_32 (output_bfd,
7294 contents + offset + 4);
7295 if ((tls_mask & tls_gd) != 0)
7296 {
7297 /* IE */
7298 insn1 &= (1 << 26) - (1 << 2);
7299 insn1 |= 58 << 26; /* ld */
7300 insn2 = 0x7c636a14; /* add 3,3,13 */
7301 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
7302 if ((tls_mask & TLS_EXPLICIT) == 0)
7303 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7304 + R_PPC64_GOT_TPREL16_DS);
7305 else
7306 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
7307 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7308 }
7309 else
7310 {
7311 /* LE */
7312 insn1 = 0x3c6d0000; /* addis 3,13,0 */
7313 insn2 = 0x38630000; /* addi 3,3,0 */
7314 if (tls_gd == 0)
7315 {
7316 /* Was an LD reloc. */
7317 r_symndx = 0;
7318 rel->r_addend = htab->tls_sec->vma + DTP_OFFSET;
7319 rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET;
7320 }
7321 r_type = R_PPC64_TPREL16_HA;
7322 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7323 rel[1].r_info = ELF64_R_INFO (r_symndx,
7324 R_PPC64_TPREL16_LO);
7325 rel[1].r_offset += 2;
7326 }
7327 if (insn3 == NOP
7328 || insn3 == CROR_151515 || insn3 == CROR_313131)
7329 {
7330 insn3 = insn2;
7331 insn2 = NOP;
7332 rel[1].r_offset += 4;
7333 }
7334 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
7335 bfd_put_32 (output_bfd, insn2, contents + offset);
7336 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
7337 if (tls_gd == 0)
7338 {
7339 /* We changed the symbol on an LD reloc. Start over
7340 in order to get h, sym, sec etc. right. */
7341 rel--;
7342 continue;
7343 }
7344 }
7345 }
7346 break;
7347
7348 case R_PPC64_DTPMOD64:
7349 if (rel + 1 < relend
7350 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
7351 && rel[1].r_offset == rel->r_offset + 8)
7352 {
7353 if ((tls_mask & TLS_GD) == 0)
7354 {
7355 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
7356 if ((tls_mask & TLS_TPRELGD) != 0)
7357 r_type = R_PPC64_TPREL64;
7358 else
7359 {
7360 bfd_put_64 (output_bfd, (bfd_vma) 1,
7361 contents + rel->r_offset);
7362 r_type = R_PPC64_NONE;
7363 }
7364 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7365 }
7366 }
7367 else
7368 {
7369 if ((tls_mask & TLS_LD) == 0)
7370 {
7371 bfd_put_64 (output_bfd, (bfd_vma) 1,
7372 contents + rel->r_offset);
7373 r_type = R_PPC64_NONE;
7374 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7375 }
7376 }
7377 break;
7378
7379 case R_PPC64_TPREL64:
7380 if ((tls_mask & TLS_TPREL) == 0)
7381 {
7382 r_type = R_PPC64_NONE;
7383 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7384 }
7385 break;
7386 }
7387
7388 /* Handle other relocations that tweak non-addend part of insn. */
7389 insn = 0;
7390 switch (r_type)
7391 {
7392 default:
7393 break;
7394
7395 /* Branch taken prediction relocations. */
7396 case R_PPC64_ADDR14_BRTAKEN:
7397 case R_PPC64_REL14_BRTAKEN:
7398 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7399 /* Fall thru. */
7400
7401 /* Branch not taken prediction relocations. */
7402 case R_PPC64_ADDR14_BRNTAKEN:
7403 case R_PPC64_REL14_BRNTAKEN:
7404 insn |= bfd_get_32 (output_bfd,
7405 contents + rel->r_offset) & ~(0x01 << 21);
7406 if (is_power4)
7407 {
7408 /* Set 'a' bit. This is 0b00010 in BO field for branch
7409 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7410 for branch on CTR insns (BO == 1a00t or 1a01t). */
7411 if ((insn & (0x14 << 21)) == (0x04 << 21))
7412 insn |= 0x02 << 21;
7413 else if ((insn & (0x14 << 21)) == (0x10 << 21))
7414 insn |= 0x08 << 21;
7415 else
7416 break;
7417 }
7418 else
7419 {
7420 from = (rel->r_offset
7421 + input_section->output_offset
7422 + input_section->output_section->vma);
7423
7424 /* Invert 'y' bit if not the default. */
7425 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
7426 insn ^= 0x01 << 21;
7427 }
7428
7429 bfd_put_32 (output_bfd, (bfd_vma) insn, contents + rel->r_offset);
7430 break;
7431
7432 case R_PPC64_REL24:
7433 /* A REL24 branching to a linkage function is followed by a
7434 nop. We replace the nop with a ld in order to restore
7435 the TOC base pointer. Only calls to shared objects need
7436 to alter the TOC base. These are recognized by their
7437 need for a PLT entry. */
7438 if (h != NULL
7439 && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL
7440 && fdh->plt.plist != NULL
7441 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
7442 rel, htab)) != NULL)
7443 {
7444 bfd_boolean can_plt_call = 0;
7445
7446 if (rel->r_offset + 8 <= input_section->_cooked_size)
7447 {
7448 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
7449 if (insn == NOP
7450 || insn == CROR_151515 || insn == CROR_313131)
7451 {
7452 bfd_put_32 (input_bfd, (bfd_vma) LD_R2_40R1,
7453 contents + rel->r_offset + 4);
7454 can_plt_call = 1;
7455 }
7456 }
7457
7458 if (!can_plt_call)
7459 {
7460 /* If this is a plain branch rather than a branch
7461 and link, don't require a nop. */
7462 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
7463 if ((insn & 1) == 0)
7464 can_plt_call = 1;
7465 }
7466
7467 if (can_plt_call)
7468 {
7469 relocation = (stub_entry->stub_offset
7470 + stub_entry->stub_sec->output_offset
7471 + stub_entry->stub_sec->output_section->vma);
7472 unresolved_reloc = FALSE;
7473 }
7474 }
7475
7476 if (h != NULL
7477 && h->root.type == bfd_link_hash_undefweak
7478 && relocation == 0
7479 && rel->r_addend == 0)
7480 {
7481 /* Tweak calls to undefined weak functions to point at a
7482 blr. We can thus call a weak function without first
7483 checking whether the function is defined. We have a
7484 blr at the end of .sfpr. */
7485 BFD_ASSERT (htab->sfpr->_raw_size != 0);
7486 relocation = (htab->sfpr->_raw_size - 4
7487 + htab->sfpr->output_offset
7488 + htab->sfpr->output_section->vma);
7489 from = (rel->r_offset
7490 + input_section->output_offset
7491 + input_section->output_section->vma);
7492
7493 /* But let's not be silly about it. If the blr isn't in
7494 reach, just go to the next instruction. */
7495 if (relocation - from + (1 << 25) >= (1 << 26)
7496 || htab->sfpr->_raw_size == 0)
7497 relocation = from + 4;
7498 }
7499 break;
7500 }
7501
7502 /* Set `addend'. */
7503 tls_type = 0;
7504 addend = rel->r_addend;
7505 switch (r_type)
7506 {
7507 default:
7508 (*_bfd_error_handler)
7509 (_("%s: unknown relocation type %d for symbol %s"),
7510 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
7511
7512 bfd_set_error (bfd_error_bad_value);
7513 ret = FALSE;
7514 continue;
7515
7516 case R_PPC64_NONE:
7517 case R_PPC64_TLS:
7518 case R_PPC64_GNU_VTINHERIT:
7519 case R_PPC64_GNU_VTENTRY:
7520 continue;
7521
7522 /* GOT16 relocations. Like an ADDR16 using the symbol's
7523 address in the GOT as relocation value instead of the
7524 symbol's value itself. Also, create a GOT entry for the
7525 symbol and put the symbol value there. */
7526 case R_PPC64_GOT_TLSGD16:
7527 case R_PPC64_GOT_TLSGD16_LO:
7528 case R_PPC64_GOT_TLSGD16_HI:
7529 case R_PPC64_GOT_TLSGD16_HA:
7530 tls_type = TLS_TLS | TLS_GD;
7531 goto dogot;
7532
7533 case R_PPC64_GOT_TLSLD16:
7534 case R_PPC64_GOT_TLSLD16_LO:
7535 case R_PPC64_GOT_TLSLD16_HI:
7536 case R_PPC64_GOT_TLSLD16_HA:
7537 tls_type = TLS_TLS | TLS_LD;
7538 goto dogot;
7539
7540 case R_PPC64_GOT_TPREL16_DS:
7541 case R_PPC64_GOT_TPREL16_LO_DS:
7542 case R_PPC64_GOT_TPREL16_HI:
7543 case R_PPC64_GOT_TPREL16_HA:
7544 tls_type = TLS_TLS | TLS_TPREL;
7545 goto dogot;
7546
7547 case R_PPC64_GOT_DTPREL16_DS:
7548 case R_PPC64_GOT_DTPREL16_LO_DS:
7549 case R_PPC64_GOT_DTPREL16_HI:
7550 case R_PPC64_GOT_DTPREL16_HA:
7551 tls_type = TLS_TLS | TLS_DTPREL;
7552 goto dogot;
7553
7554 case R_PPC64_GOT16:
7555 case R_PPC64_GOT16_LO:
7556 case R_PPC64_GOT16_HI:
7557 case R_PPC64_GOT16_HA:
7558 case R_PPC64_GOT16_DS:
7559 case R_PPC64_GOT16_LO_DS:
7560 dogot:
7561 {
7562 /* Relocation is to the entry for this symbol in the global
7563 offset table. */
7564 bfd_vma *offp;
7565 bfd_vma off;
7566 unsigned long indx = 0;
7567
7568 if (htab->sgot == NULL)
7569 abort ();
7570
7571 if (tls_type == (TLS_TLS | TLS_LD)
7572 && (h == NULL
7573 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
7574 offp = &htab->tlsld_got.offset;
7575 else
7576 {
7577 struct got_entry *ent;
7578
7579 if (h != NULL)
7580 {
7581 bfd_boolean dyn = htab->elf.dynamic_sections_created;
7582 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
7583 || (info->shared
7584 && (info->symbolic
7585 || h->dynindx == -1
7586 || (h->elf_link_hash_flags
7587 & ELF_LINK_FORCED_LOCAL))
7588 && (h->elf_link_hash_flags
7589 & ELF_LINK_HASH_DEF_REGULAR)))
7590 /* This is actually a static link, or it is a
7591 -Bsymbolic link and the symbol is defined
7592 locally, or the symbol was forced to be local
7593 because of a version file. */
7594 ;
7595 else
7596 {
7597 indx = h->dynindx;
7598 unresolved_reloc = FALSE;
7599 }
7600 ent = h->got.glist;
7601 }
7602 else
7603 {
7604 if (local_got_ents == NULL)
7605 abort ();
7606 ent = local_got_ents[r_symndx];
7607 }
7608
7609 for (; ent != NULL; ent = ent->next)
7610 if (ent->addend == rel->r_addend
7611 && ent->tls_type == tls_type)
7612 break;
7613 if (ent == NULL)
7614 abort ();
7615 offp = &ent->got.offset;
7616 }
7617
7618 /* The offset must always be a multiple of 8. We use the
7619 least significant bit to record whether we have already
7620 processed this entry. */
7621 off = *offp;
7622 if ((off & 1) != 0)
7623 off &= ~1;
7624 else
7625 {
7626 /* Generate relocs for the dynamic linker, except in
7627 the case of TLSLD where we'll use one entry per
7628 module. */
7629 *offp = off | 1;
7630 if (info->shared || indx != 0)
7631 {
7632 outrel.r_offset = (htab->sgot->output_section->vma
7633 + htab->sgot->output_offset
7634 + off);
7635 if (tls_type & (TLS_LD | TLS_GD))
7636 {
7637 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
7638 outrel.r_addend = 0;
7639 if (tls_type == (TLS_TLS | TLS_GD))
7640 {
7641 loc = htab->srelgot->contents;
7642 loc += (htab->srelgot->reloc_count++
7643 * sizeof (Elf64_External_Rela));
7644 bfd_elf64_swap_reloca_out (output_bfd,
7645 &outrel, loc);
7646 outrel.r_info
7647 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
7648 outrel.r_offset += 8;
7649 }
7650 }
7651 else if (tls_type == (TLS_TLS | TLS_DTPREL))
7652 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
7653 else if (tls_type == (TLS_TLS | TLS_TPREL))
7654 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
7655 else if (indx == 0)
7656 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
7657 else
7658 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
7659 outrel.r_addend = rel->r_addend;
7660 if (indx == 0)
7661 outrel.r_addend += relocation;
7662 loc = htab->srelgot->contents;
7663 loc += (htab->srelgot->reloc_count++
7664 * sizeof (Elf64_External_Rela));
7665 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
7666 }
7667
7668 /* Init the .got section contents if we're not
7669 emitting a reloc. */
7670 else
7671 {
7672 relocation += rel->r_addend;
7673 if (tls_type != 0)
7674 {
7675 relocation -= htab->tls_sec->vma + DTP_OFFSET;
7676 if ((tls_type & TLS_TPREL) != 0)
7677 relocation += DTP_OFFSET - TP_OFFSET;
7678 }
7679
7680 if ((tls_type & TLS_GD) != 0)
7681 {
7682 bfd_put_64 (output_bfd, relocation,
7683 htab->sgot->contents + off + 8);
7684 relocation = 1;
7685 }
7686 else if (tls_type == (TLS_TLS | TLS_LD))
7687 relocation = 1;
7688 bfd_put_64 (output_bfd, relocation,
7689 htab->sgot->contents + off);
7690 }
7691 }
7692
7693 if (off >= (bfd_vma) -2)
7694 abort ();
7695
7696 relocation = htab->sgot->output_offset + off;
7697
7698 /* TOC base (r2) is TOC start plus 0x8000. */
7699 addend = - TOC_BASE_OFF;
7700 }
7701 break;
7702
7703 case R_PPC64_PLT16_HA:
7704 case R_PPC64_PLT16_HI:
7705 case R_PPC64_PLT16_LO:
7706 case R_PPC64_PLT32:
7707 case R_PPC64_PLT64:
7708 /* Relocation is to the entry for this symbol in the
7709 procedure linkage table. */
7710
7711 /* Resolve a PLT reloc against a local symbol directly,
7712 without using the procedure linkage table. */
7713 if (h == NULL)
7714 break;
7715
7716 /* It's possible that we didn't make a PLT entry for this
7717 symbol. This happens when statically linking PIC code,
7718 or when using -Bsymbolic. Go find a match if there is a
7719 PLT entry. */
7720 if (htab->splt != NULL)
7721 {
7722 struct plt_entry *ent;
7723 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
7724 if (ent->addend == rel->r_addend
7725 && ent->plt.offset != (bfd_vma) -1)
7726 {
7727 relocation = (htab->splt->output_section->vma
7728 + htab->splt->output_offset
7729 + ent->plt.offset);
7730 unresolved_reloc = FALSE;
7731 }
7732 }
7733 break;
7734
7735 /* TOC16 relocs. We want the offset relative to the TOC base,
7736 which is the address of the start of the TOC plus 0x8000.
7737 The TOC consists of sections .got, .toc, .tocbss, and .plt,
7738 in this order. */
7739 case R_PPC64_TOC16:
7740 case R_PPC64_TOC16_LO:
7741 case R_PPC64_TOC16_HI:
7742 case R_PPC64_TOC16_DS:
7743 case R_PPC64_TOC16_LO_DS:
7744 case R_PPC64_TOC16_HA:
7745 addend -= TOCstart + TOC_BASE_OFF;
7746 break;
7747
7748 /* Relocate against the beginning of the section. */
7749 case R_PPC64_SECTOFF:
7750 case R_PPC64_SECTOFF_LO:
7751 case R_PPC64_SECTOFF_HI:
7752 case R_PPC64_SECTOFF_DS:
7753 case R_PPC64_SECTOFF_LO_DS:
7754 case R_PPC64_SECTOFF_HA:
7755 if (sec != (asection *) 0)
7756 addend -= sec->output_section->vma;
7757 break;
7758
7759 case R_PPC64_REL14:
7760 case R_PPC64_REL14_BRNTAKEN:
7761 case R_PPC64_REL14_BRTAKEN:
7762 case R_PPC64_REL24:
7763 break;
7764
7765 case R_PPC64_TPREL16:
7766 case R_PPC64_TPREL16_LO:
7767 case R_PPC64_TPREL16_HI:
7768 case R_PPC64_TPREL16_HA:
7769 case R_PPC64_TPREL16_DS:
7770 case R_PPC64_TPREL16_LO_DS:
7771 case R_PPC64_TPREL16_HIGHER:
7772 case R_PPC64_TPREL16_HIGHERA:
7773 case R_PPC64_TPREL16_HIGHEST:
7774 case R_PPC64_TPREL16_HIGHESTA:
7775 addend -= htab->tls_sec->vma + TP_OFFSET;
7776 if (info->shared)
7777 /* The TPREL16 relocs shouldn't really be used in shared
7778 libs as they will result in DT_TEXTREL being set, but
7779 support them anyway. */
7780 goto dodyn;
7781 break;
7782
7783 case R_PPC64_DTPREL16:
7784 case R_PPC64_DTPREL16_LO:
7785 case R_PPC64_DTPREL16_HI:
7786 case R_PPC64_DTPREL16_HA:
7787 case R_PPC64_DTPREL16_DS:
7788 case R_PPC64_DTPREL16_LO_DS:
7789 case R_PPC64_DTPREL16_HIGHER:
7790 case R_PPC64_DTPREL16_HIGHERA:
7791 case R_PPC64_DTPREL16_HIGHEST:
7792 case R_PPC64_DTPREL16_HIGHESTA:
7793 addend -= htab->tls_sec->vma + DTP_OFFSET;
7794 break;
7795
7796 case R_PPC64_TPREL64:
7797 addend -= htab->tls_sec->vma + TP_OFFSET;
7798 goto dodyn;
7799
7800 case R_PPC64_DTPREL64:
7801 addend -= htab->tls_sec->vma + DTP_OFFSET;
7802 /* Fall thru */
7803
7804 /* Relocations that may need to be propagated if this is a
7805 dynamic object. */
7806 case R_PPC64_DTPMOD64:
7807 case R_PPC64_REL30:
7808 case R_PPC64_REL32:
7809 case R_PPC64_REL64:
7810 case R_PPC64_ADDR14:
7811 case R_PPC64_ADDR14_BRNTAKEN:
7812 case R_PPC64_ADDR14_BRTAKEN:
7813 case R_PPC64_ADDR16:
7814 case R_PPC64_ADDR16_DS:
7815 case R_PPC64_ADDR16_HA:
7816 case R_PPC64_ADDR16_HI:
7817 case R_PPC64_ADDR16_HIGHER:
7818 case R_PPC64_ADDR16_HIGHERA:
7819 case R_PPC64_ADDR16_HIGHEST:
7820 case R_PPC64_ADDR16_HIGHESTA:
7821 case R_PPC64_ADDR16_LO:
7822 case R_PPC64_ADDR16_LO_DS:
7823 case R_PPC64_ADDR24:
7824 case R_PPC64_ADDR32:
7825 case R_PPC64_ADDR64:
7826 case R_PPC64_UADDR16:
7827 case R_PPC64_UADDR32:
7828 case R_PPC64_UADDR64:
7829 /* r_symndx will be zero only for relocs against symbols
7830 from removed linkonce sections, or sections discarded by
7831 a linker script. */
7832 dodyn:
7833 if (r_symndx == 0)
7834 break;
7835 /* Fall thru. */
7836
7837 case R_PPC64_TOC:
7838 if ((input_section->flags & SEC_ALLOC) == 0)
7839 break;
7840
7841 if (NO_OPD_RELOCS && is_opd)
7842 break;
7843
7844 if ((info->shared
7845 && (MUST_BE_DYN_RELOC (r_type)
7846 || (h != NULL
7847 && h->dynindx != -1
7848 && (! info->symbolic
7849 || (h->elf_link_hash_flags
7850 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
7851 || (ELIMINATE_COPY_RELOCS
7852 && !info->shared
7853 && h != NULL
7854 && h->dynindx != -1
7855 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
7856 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
7857 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
7858 {
7859 Elf_Internal_Rela outrel;
7860 bfd_boolean skip, relocate;
7861 asection *sreloc;
7862 bfd_byte *loc;
7863
7864 /* When generating a dynamic object, these relocations
7865 are copied into the output file to be resolved at run
7866 time. */
7867
7868 skip = FALSE;
7869 relocate = FALSE;
7870
7871 outrel.r_offset =
7872 _bfd_elf_section_offset (output_bfd, info, input_section,
7873 rel->r_offset);
7874 if (outrel.r_offset == (bfd_vma) -1)
7875 skip = TRUE;
7876 else if (outrel.r_offset == (bfd_vma) -2)
7877 skip = TRUE, relocate = TRUE;
7878 outrel.r_offset += (input_section->output_section->vma
7879 + input_section->output_offset);
7880 outrel.r_addend = rel->r_addend;
7881
7882 if (skip)
7883 memset (&outrel, 0, sizeof outrel);
7884 else if (h != NULL
7885 && h->dynindx != -1
7886 && !is_opd
7887 && (!MUST_BE_DYN_RELOC (r_type)
7888 || !info->shared
7889 || !info->symbolic
7890 || (h->elf_link_hash_flags
7891 & ELF_LINK_HASH_DEF_REGULAR) == 0))
7892 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
7893 else
7894 {
7895 /* This symbol is local, or marked to become local,
7896 or this is an opd section reloc which must point
7897 at a local function. */
7898 outrel.r_addend += relocation;
7899 /* ??? why? */
7900 relocate = TRUE;
7901 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
7902 {
7903 if (is_opd && h != NULL)
7904 {
7905 /* Lie about opd entries. This case occurs
7906 when building shared libraries and we
7907 reference a function in another shared
7908 lib. The same thing happens for a weak
7909 definition in an application that's
7910 overridden by a strong definition in a
7911 shared lib. (I believe this is a generic
7912 bug in binutils handling of weak syms.)
7913 In these cases we won't use the opd
7914 entry in this lib. */
7915 unresolved_reloc = FALSE;
7916 }
7917 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
7918 }
7919 else
7920 {
7921 long indx = 0;
7922
7923 if (bfd_is_abs_section (sec))
7924 ;
7925 else if (sec == NULL || sec->owner == NULL)
7926 {
7927 bfd_set_error (bfd_error_bad_value);
7928 return FALSE;
7929 }
7930 else
7931 {
7932 asection *osec;
7933
7934 osec = sec->output_section;
7935 indx = elf_section_data (osec)->dynindx;
7936
7937 /* We are turning this relocation into one
7938 against a section symbol, so subtract out
7939 the output section's address but not the
7940 offset of the input section in the output
7941 section. */
7942 outrel.r_addend -= osec->vma;
7943 }
7944
7945 outrel.r_info = ELF64_R_INFO (indx, r_type);
7946 }
7947 }
7948
7949 sreloc = elf_section_data (input_section)->sreloc;
7950 if (sreloc == NULL)
7951 abort ();
7952
7953 loc = sreloc->contents;
7954 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
7955 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
7956
7957 /* If this reloc is against an external symbol, it will
7958 be computed at runtime, so there's no need to do
7959 anything now. */
7960 if (! relocate)
7961 continue;
7962 }
7963 break;
7964
7965 case R_PPC64_COPY:
7966 case R_PPC64_GLOB_DAT:
7967 case R_PPC64_JMP_SLOT:
7968 case R_PPC64_RELATIVE:
7969 /* We shouldn't ever see these dynamic relocs in relocatable
7970 files. */
7971 /* Fall through. */
7972
7973 case R_PPC64_PLTGOT16:
7974 case R_PPC64_PLTGOT16_DS:
7975 case R_PPC64_PLTGOT16_HA:
7976 case R_PPC64_PLTGOT16_HI:
7977 case R_PPC64_PLTGOT16_LO:
7978 case R_PPC64_PLTGOT16_LO_DS:
7979 case R_PPC64_PLTREL32:
7980 case R_PPC64_PLTREL64:
7981 /* These ones haven't been implemented yet. */
7982
7983 (*_bfd_error_handler)
7984 (_("%s: Relocation %s is not supported for symbol %s."),
7985 bfd_archive_filename (input_bfd),
7986 ppc64_elf_howto_table[(int) r_type]->name, sym_name);
7987
7988 bfd_set_error (bfd_error_invalid_operation);
7989 ret = FALSE;
7990 continue;
7991 }
7992
7993 /* Do any further special processing. */
7994 switch (r_type)
7995 {
7996 default:
7997 break;
7998
7999 case R_PPC64_ADDR16_HA:
8000 case R_PPC64_ADDR16_HIGHERA:
8001 case R_PPC64_ADDR16_HIGHESTA:
8002 case R_PPC64_GOT16_HA:
8003 case R_PPC64_PLTGOT16_HA:
8004 case R_PPC64_PLT16_HA:
8005 case R_PPC64_TOC16_HA:
8006 case R_PPC64_SECTOFF_HA:
8007 case R_PPC64_TPREL16_HA:
8008 case R_PPC64_DTPREL16_HA:
8009 case R_PPC64_GOT_TLSGD16_HA:
8010 case R_PPC64_GOT_TLSLD16_HA:
8011 case R_PPC64_GOT_TPREL16_HA:
8012 case R_PPC64_GOT_DTPREL16_HA:
8013 case R_PPC64_TPREL16_HIGHER:
8014 case R_PPC64_TPREL16_HIGHERA:
8015 case R_PPC64_TPREL16_HIGHEST:
8016 case R_PPC64_TPREL16_HIGHESTA:
8017 case R_PPC64_DTPREL16_HIGHER:
8018 case R_PPC64_DTPREL16_HIGHERA:
8019 case R_PPC64_DTPREL16_HIGHEST:
8020 case R_PPC64_DTPREL16_HIGHESTA:
8021 /* It's just possible that this symbol is a weak symbol
8022 that's not actually defined anywhere. In that case,
8023 'sec' would be NULL, and we should leave the symbol
8024 alone (it will be set to zero elsewhere in the link). */
8025 if (sec != NULL)
8026 /* Add 0x10000 if sign bit in 0:15 is set. */
8027 addend += ((relocation + addend) & 0x8000) << 1;
8028 break;
8029
8030 case R_PPC64_ADDR16_DS:
8031 case R_PPC64_ADDR16_LO_DS:
8032 case R_PPC64_GOT16_DS:
8033 case R_PPC64_GOT16_LO_DS:
8034 case R_PPC64_PLT16_LO_DS:
8035 case R_PPC64_SECTOFF_DS:
8036 case R_PPC64_SECTOFF_LO_DS:
8037 case R_PPC64_TOC16_DS:
8038 case R_PPC64_TOC16_LO_DS:
8039 case R_PPC64_PLTGOT16_DS:
8040 case R_PPC64_PLTGOT16_LO_DS:
8041 case R_PPC64_GOT_TPREL16_DS:
8042 case R_PPC64_GOT_TPREL16_LO_DS:
8043 case R_PPC64_GOT_DTPREL16_DS:
8044 case R_PPC64_GOT_DTPREL16_LO_DS:
8045 case R_PPC64_TPREL16_DS:
8046 case R_PPC64_TPREL16_LO_DS:
8047 case R_PPC64_DTPREL16_DS:
8048 case R_PPC64_DTPREL16_LO_DS:
8049 if (((relocation + addend) & 3) != 0)
8050 {
8051 (*_bfd_error_handler)
8052 (_("%s: error: relocation %s not a multiple of 4"),
8053 bfd_archive_filename (input_bfd),
8054 ppc64_elf_howto_table[(int) r_type]->name);
8055 bfd_set_error (bfd_error_bad_value);
8056 ret = FALSE;
8057 continue;
8058 }
8059 break;
8060
8061 case R_PPC64_REL14:
8062 case R_PPC64_REL14_BRNTAKEN:
8063 case R_PPC64_REL14_BRTAKEN:
8064 max_br_offset = 1 << 15;
8065 goto branch_check;
8066
8067 case R_PPC64_REL24:
8068 max_br_offset = 1 << 25;
8069
8070 branch_check:
8071 /* If the branch is out of reach, then redirect the
8072 call to the local stub for this function. */
8073 from = (rel->r_offset
8074 + input_section->output_offset
8075 + input_section->output_section->vma);
8076 if (relocation + addend - from + max_br_offset >= 2 * max_br_offset
8077 && (stub_entry = ppc_get_stub_entry (input_section, sec, h,
8078 rel, htab)) != NULL)
8079 {
8080 /* Munge up the value and addend so that we call the stub
8081 rather than the procedure directly. */
8082 relocation = (stub_entry->stub_offset
8083 + stub_entry->stub_sec->output_offset
8084 + stub_entry->stub_sec->output_section->vma);
8085 addend = 0;
8086 }
8087 break;
8088 }
8089
8090 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8091 because such sections are not SEC_ALLOC and thus ld.so will
8092 not process them. */
8093 if (unresolved_reloc
8094 && !((input_section->flags & SEC_DEBUGGING) != 0
8095 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
8096 {
8097 (*_bfd_error_handler)
8098 (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
8099 bfd_archive_filename (input_bfd),
8100 bfd_get_section_name (input_bfd, input_section),
8101 (long) rel->r_offset,
8102 h->root.root.string);
8103 ret = FALSE;
8104 }
8105
8106 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
8107 input_bfd,
8108 input_section,
8109 contents,
8110 rel->r_offset,
8111 relocation,
8112 addend);
8113
8114 if (r != bfd_reloc_ok)
8115 {
8116 if (sym_name == NULL)
8117 sym_name = "(null)";
8118 if (r == bfd_reloc_overflow)
8119 {
8120 if (warned)
8121 continue;
8122 if (h != NULL
8123 && h->root.type == bfd_link_hash_undefweak
8124 && ppc64_elf_howto_table[(int) r_type]->pc_relative)
8125 {
8126 /* Assume this is a call protected by other code that
8127 detects the symbol is undefined. If this is the case,
8128 we can safely ignore the overflow. If not, the
8129 program is hosed anyway, and a little warning isn't
8130 going to help. */
8131
8132 continue;
8133 }
8134
8135 if (!((*info->callbacks->reloc_overflow)
8136 (info, sym_name, ppc64_elf_howto_table[(int) r_type]->name,
8137 rel->r_addend, input_bfd, input_section, rel->r_offset)))
8138 return FALSE;
8139 }
8140 else
8141 {
8142 (*_bfd_error_handler)
8143 (_("%s(%s+0x%lx): reloc against `%s': error %d"),
8144 bfd_archive_filename (input_bfd),
8145 bfd_get_section_name (input_bfd, input_section),
8146 (long) rel->r_offset, sym_name, (int) r);
8147 ret = FALSE;
8148 }
8149 }
8150 }
8151
8152 return ret;
8153 }
8154
8155 /* Finish up dynamic symbol handling. We set the contents of various
8156 dynamic sections here. */
8157
8158 static bfd_boolean
8159 ppc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
8160 bfd *output_bfd;
8161 struct bfd_link_info *info;
8162 struct elf_link_hash_entry *h;
8163 Elf_Internal_Sym *sym;
8164 {
8165 struct ppc_link_hash_table *htab;
8166 bfd *dynobj;
8167
8168 htab = ppc_hash_table (info);
8169 dynobj = htab->elf.dynobj;
8170
8171 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
8172 {
8173 struct plt_entry *ent;
8174 Elf_Internal_Rela rela;
8175 bfd_byte *loc;
8176
8177 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8178 if (ent->plt.offset != (bfd_vma) -1)
8179 {
8180 /* This symbol has an entry in the procedure linkage
8181 table. Set it up. */
8182
8183 if (htab->splt == NULL
8184 || htab->srelplt == NULL
8185 || htab->sglink == NULL)
8186 abort ();
8187
8188 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8189 fill in the PLT entry. */
8190 rela.r_offset = (htab->splt->output_section->vma
8191 + htab->splt->output_offset
8192 + ent->plt.offset);
8193 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
8194 rela.r_addend = ent->addend;
8195
8196 loc = htab->srelplt->contents;
8197 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
8198 * sizeof (Elf64_External_Rela));
8199 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8200 }
8201 }
8202
8203 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
8204 {
8205 Elf_Internal_Rela rela;
8206 bfd_byte *loc;
8207
8208 /* This symbol needs a copy reloc. Set it up. */
8209
8210 if (h->dynindx == -1
8211 || (h->root.type != bfd_link_hash_defined
8212 && h->root.type != bfd_link_hash_defweak)
8213 || htab->srelbss == NULL)
8214 abort ();
8215
8216 rela.r_offset = (h->root.u.def.value
8217 + h->root.u.def.section->output_section->vma
8218 + h->root.u.def.section->output_offset);
8219 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
8220 rela.r_addend = 0;
8221 loc = htab->srelbss->contents;
8222 loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela);
8223 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8224 }
8225
8226 /* Mark some specially defined symbols as absolute. */
8227 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
8228 sym->st_shndx = SHN_ABS;
8229
8230 return TRUE;
8231 }
8232
8233 /* Used to decide how to sort relocs in an optimal manner for the
8234 dynamic linker, before writing them out. */
8235
8236 static enum elf_reloc_type_class
8237 ppc64_elf_reloc_type_class (rela)
8238 const Elf_Internal_Rela *rela;
8239 {
8240 enum elf_ppc64_reloc_type r_type;
8241
8242 r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rela->r_info);
8243 switch (r_type)
8244 {
8245 case R_PPC64_RELATIVE:
8246 return reloc_class_relative;
8247 case R_PPC64_JMP_SLOT:
8248 return reloc_class_plt;
8249 case R_PPC64_COPY:
8250 return reloc_class_copy;
8251 default:
8252 return reloc_class_normal;
8253 }
8254 }
8255
8256 /* Finish up the dynamic sections. */
8257
8258 static bfd_boolean
8259 ppc64_elf_finish_dynamic_sections (output_bfd, info)
8260 bfd *output_bfd;
8261 struct bfd_link_info *info;
8262 {
8263 struct ppc_link_hash_table *htab;
8264 bfd *dynobj;
8265 asection *sdyn;
8266
8267 htab = ppc_hash_table (info);
8268 dynobj = htab->elf.dynobj;
8269 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8270
8271 if (htab->elf.dynamic_sections_created)
8272 {
8273 Elf64_External_Dyn *dyncon, *dynconend;
8274
8275 if (sdyn == NULL || htab->sgot == NULL)
8276 abort ();
8277
8278 dyncon = (Elf64_External_Dyn *) sdyn->contents;
8279 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
8280 for (; dyncon < dynconend; dyncon++)
8281 {
8282 Elf_Internal_Dyn dyn;
8283 asection *s;
8284
8285 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
8286
8287 switch (dyn.d_tag)
8288 {
8289 default:
8290 continue;
8291
8292 case DT_PPC64_GLINK:
8293 s = htab->sglink;
8294 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
8295 break;
8296
8297 case DT_PPC64_OPD:
8298 s = bfd_get_section_by_name (output_bfd, ".opd");
8299 if (s == NULL)
8300 continue;
8301 dyn.d_un.d_ptr = s->vma;
8302 break;
8303
8304 case DT_PPC64_OPDSZ:
8305 s = bfd_get_section_by_name (output_bfd, ".opd");
8306 if (s == NULL)
8307 continue;
8308 dyn.d_un.d_val = s->_raw_size;
8309 break;
8310
8311 case DT_PLTGOT:
8312 s = htab->splt;
8313 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
8314 break;
8315
8316 case DT_JMPREL:
8317 s = htab->srelplt;
8318 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
8319 break;
8320
8321 case DT_PLTRELSZ:
8322 dyn.d_un.d_val = htab->srelplt->_raw_size;
8323 break;
8324
8325 case DT_RELASZ:
8326 /* Don't count procedure linkage table relocs in the
8327 overall reloc count. */
8328 s = htab->srelplt;
8329 if (s == NULL)
8330 continue;
8331 dyn.d_un.d_val -= s->_raw_size;
8332 break;
8333
8334 case DT_RELA:
8335 /* We may not be using the standard ELF linker script.
8336 If .rela.plt is the first .rela section, we adjust
8337 DT_RELA to not include it. */
8338 s = htab->srelplt;
8339 if (s == NULL)
8340 continue;
8341 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
8342 continue;
8343 dyn.d_un.d_ptr += s->_raw_size;
8344 break;
8345 }
8346
8347 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
8348 }
8349 }
8350
8351 if (htab->sgot != NULL && htab->sgot->_raw_size != 0)
8352 {
8353 /* Fill in the first entry in the global offset table.
8354 We use it to hold the link-time TOCbase. */
8355 bfd_put_64 (output_bfd,
8356 elf_gp (output_bfd) + TOC_BASE_OFF,
8357 htab->sgot->contents);
8358
8359 /* Set .got entry size. */
8360 elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 8;
8361 }
8362
8363 if (htab->splt != NULL && htab->splt->_raw_size != 0)
8364 {
8365 /* Set .plt entry size. */
8366 elf_section_data (htab->splt->output_section)->this_hdr.sh_entsize
8367 = PLT_ENTRY_SIZE;
8368 }
8369
8370 return TRUE;
8371 }
8372
8373 #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
8374 #define TARGET_LITTLE_NAME "elf64-powerpcle"
8375 #define TARGET_BIG_SYM bfd_elf64_powerpc_vec
8376 #define TARGET_BIG_NAME "elf64-powerpc"
8377 #define ELF_ARCH bfd_arch_powerpc
8378 #define ELF_MACHINE_CODE EM_PPC64
8379 #define ELF_MAXPAGESIZE 0x10000
8380 #define elf_info_to_howto ppc64_elf_info_to_howto
8381
8382 #ifdef EM_CYGNUS_POWERPC
8383 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
8384 #endif
8385
8386 #ifdef EM_PPC_OLD
8387 #define ELF_MACHINE_ALT2 EM_PPC_OLD
8388 #endif
8389
8390 #define elf_backend_want_got_sym 0
8391 #define elf_backend_want_plt_sym 0
8392 #define elf_backend_plt_alignment 3
8393 #define elf_backend_plt_not_loaded 1
8394 #define elf_backend_got_symbol_offset 0
8395 #define elf_backend_got_header_size 8
8396 #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
8397 #define elf_backend_can_gc_sections 1
8398 #define elf_backend_can_refcount 1
8399 #define elf_backend_rela_normal 1
8400
8401 #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
8402 #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
8403 #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
8404 #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
8405 #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
8406
8407 #define elf_backend_object_p ppc64_elf_object_p
8408 #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
8409 #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
8410 #define elf_backend_check_relocs ppc64_elf_check_relocs
8411 #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
8412 #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
8413 #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
8414 #define elf_backend_hide_symbol ppc64_elf_hide_symbol
8415 #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
8416 #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
8417 #define elf_backend_relocate_section ppc64_elf_relocate_section
8418 #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
8419 #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
8420 #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
8421
8422 #include "elf64-target.h"
git-cvsimport of binutils cvsroot