projects / deliverable / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
* coff-tic80.c (tic80_howto_table): Add R_ABS entry.
[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
1 /* PowerPC-specific support for 32-bit ELF
2 Copyright 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor, Cygnus Support.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21 /* This file is based on a preliminary PowerPC ELF ABI. The
22 information may not match the final PowerPC ELF ABI. It includes
23 suggestions from the in-progress Embedded PowerPC ABI, and that
24 information may also not match. */
25
26 #include "bfd.h"
27 #include "sysdep.h"
28 #include "bfdlink.h"
29 #include "libbfd.h"
30 #include "elf-bfd.h"
31 #include "elf/ppc.h"
32
33 #define USE_RELA /* we want RELA relocations, not REL */
34
35 /* PowerPC relocations defined by the ABIs */
36 enum ppc_reloc_type
37 {
38 R_PPC_NONE = 0,
39 R_PPC_ADDR32 = 1,
40 R_PPC_ADDR24 = 2,
41 R_PPC_ADDR16 = 3,
42 R_PPC_ADDR16_LO = 4,
43 R_PPC_ADDR16_HI = 5,
44 R_PPC_ADDR16_HA = 6,
45 R_PPC_ADDR14 = 7,
46 R_PPC_ADDR14_BRTAKEN = 8,
47 R_PPC_ADDR14_BRNTAKEN = 9,
48 R_PPC_REL24 = 10,
49 R_PPC_REL14 = 11,
50 R_PPC_REL14_BRTAKEN = 12,
51 R_PPC_REL14_BRNTAKEN = 13,
52 R_PPC_GOT16 = 14,
53 R_PPC_GOT16_LO = 15,
54 R_PPC_GOT16_HI = 16,
55 R_PPC_GOT16_HA = 17,
56 R_PPC_PLTREL24 = 18,
57 R_PPC_COPY = 19,
58 R_PPC_GLOB_DAT = 20,
59 R_PPC_JMP_SLOT = 21,
60 R_PPC_RELATIVE = 22,
61 R_PPC_LOCAL24PC = 23,
62 R_PPC_UADDR32 = 24,
63 R_PPC_UADDR16 = 25,
64 R_PPC_REL32 = 26,
65 R_PPC_PLT32 = 27,
66 R_PPC_PLTREL32 = 28,
67 R_PPC_PLT16_LO = 29,
68 R_PPC_PLT16_HI = 30,
69 R_PPC_PLT16_HA = 31,
70 R_PPC_SDAREL16 = 32,
71 R_PPC_SECTOFF = 33,
72 R_PPC_SECTOFF_LO = 34,
73 R_PPC_SECTOFF_HI = 35,
74 R_PPC_SECTOFF_HA = 36,
75
76 /* The remaining relocs are from the Embedded ELF ABI, and are not
77 in the SVR4 ELF ABI. */
78 R_PPC_EMB_NADDR32 = 101,
79 R_PPC_EMB_NADDR16 = 102,
80 R_PPC_EMB_NADDR16_LO = 103,
81 R_PPC_EMB_NADDR16_HI = 104,
82 R_PPC_EMB_NADDR16_HA = 105,
83 R_PPC_EMB_SDAI16 = 106,
84 R_PPC_EMB_SDA2I16 = 107,
85 R_PPC_EMB_SDA2REL = 108,
86 R_PPC_EMB_SDA21 = 109,
87 R_PPC_EMB_MRKREF = 110,
88 R_PPC_EMB_RELSEC16 = 111,
89 R_PPC_EMB_RELST_LO = 112,
90 R_PPC_EMB_RELST_HI = 113,
91 R_PPC_EMB_RELST_HA = 114,
92 R_PPC_EMB_BIT_FLD = 115,
93 R_PPC_EMB_RELSDA = 116,
94
95 /* This is a phony reloc to handle any old fashioned TOC16 references
96 that may still be in object files. */
97 R_PPC_TOC16 = 255,
98
99 R_PPC_max
100 };
101
102 static reloc_howto_type *ppc_elf_reloc_type_lookup
103 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
104 static void ppc_elf_info_to_howto
105 PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
106 static void ppc_elf_howto_init PARAMS ((void));
107 static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
108 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
109 static boolean ppc_elf_set_private_flags PARAMS ((bfd *, flagword));
110 static boolean ppc_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
111 static boolean ppc_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
112
113 static int ppc_elf_additional_program_headers PARAMS ((bfd *));
114 static boolean ppc_elf_modify_segment_map PARAMS ((bfd *));
115
116 static boolean ppc_elf_section_from_shdr PARAMS ((bfd *,
117 Elf32_Internal_Shdr *,
118 char *));
119
120 static elf_linker_section_t *ppc_elf_create_linker_section
121 PARAMS ((bfd *abfd,
122 struct bfd_link_info *info,
123 enum elf_linker_section_enum));
124
125 static boolean ppc_elf_check_relocs PARAMS ((bfd *,
126 struct bfd_link_info *,
127 asection *,
128 const Elf_Internal_Rela *));
129
130 static boolean ppc_elf_adjust_dynamic_symbol PARAMS ((struct bfd_link_info *,
131 struct elf_link_hash_entry *));
132
133 static boolean ppc_elf_adjust_dynindx PARAMS ((struct elf_link_hash_entry *, PTR));
134
135 static boolean ppc_elf_size_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *));
136
137 static boolean ppc_elf_relocate_section PARAMS ((bfd *,
138 struct bfd_link_info *info,
139 bfd *,
140 asection *,
141 bfd_byte *,
142 Elf_Internal_Rela *relocs,
143 Elf_Internal_Sym *local_syms,
144 asection **));
145
146 static boolean ppc_elf_add_symbol_hook PARAMS ((bfd *,
147 struct bfd_link_info *,
148 const Elf_Internal_Sym *,
149 const char **,
150 flagword *,
151 asection **,
152 bfd_vma *));
153
154 static boolean ppc_elf_finish_dynamic_symbol PARAMS ((bfd *,
155 struct bfd_link_info *,
156 struct elf_link_hash_entry *,
157 Elf_Internal_Sym *));
158
159 static boolean ppc_elf_finish_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *));
160
161 #define BRANCH_PREDICT_BIT 0x200000 /* branch prediction bit for branch taken relocs */
162 #define RA_REGISTER_MASK 0x001f0000 /* mask to set RA in memory instructions */
163 #define RA_REGISTER_SHIFT 16 /* value to shift register by to insert RA */
164
165 /* The name of the dynamic interpreter. This is put in the .interp
166 section. */
167
168 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
169
170 /* The size in bytes of an entry in the procedure linkage table, and of the initial size
171 of the plt reserved for the dynamic linker. */
172
173 #define PLT_ENTRY_SIZE 12
174 #define PLT_INITIAL_ENTRY_SIZE 72
175
176 \f
177 static reloc_howto_type *ppc_elf_howto_table[ (int)R_PPC_max ];
178
179 static reloc_howto_type ppc_elf_howto_raw[] =
180 {
181 /* This reloc does nothing. */
182 HOWTO (R_PPC_NONE, /* type */
183 0, /* rightshift */
184 2, /* size (0 = byte, 1 = short, 2 = long) */
185 32, /* bitsize */
186 false, /* pc_relative */
187 0, /* bitpos */
188 complain_overflow_bitfield, /* complain_on_overflow */
189 bfd_elf_generic_reloc, /* special_function */
190 "R_PPC_NONE", /* name */
191 false, /* partial_inplace */
192 0, /* src_mask */
193 0, /* dst_mask */
194 false), /* pcrel_offset */
195
196 /* A standard 32 bit relocation. */
197 HOWTO (R_PPC_ADDR32, /* type */
198 0, /* rightshift */
199 2, /* size (0 = byte, 1 = short, 2 = long) */
200 32, /* bitsize */
201 false, /* pc_relative */
202 0, /* bitpos */
203 complain_overflow_bitfield, /* complain_on_overflow */
204 bfd_elf_generic_reloc, /* special_function */
205 "R_PPC_ADDR32", /* name */
206 false, /* partial_inplace */
207 0, /* src_mask */
208 0xffffffff, /* dst_mask */
209 false), /* pcrel_offset */
210
211 /* An absolute 26 bit branch; the lower two bits must be zero.
212 FIXME: we don't check that, we just clear them. */
213 HOWTO (R_PPC_ADDR24, /* type */
214 0, /* rightshift */
215 2, /* size (0 = byte, 1 = short, 2 = long) */
216 26, /* bitsize */
217 false, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_bitfield, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_PPC_ADDR24", /* name */
222 false, /* partial_inplace */
223 0, /* src_mask */
224 0x3fffffc, /* dst_mask */
225 false), /* pcrel_offset */
226
227 /* A standard 16 bit relocation. */
228 HOWTO (R_PPC_ADDR16, /* type */
229 0, /* rightshift */
230 1, /* size (0 = byte, 1 = short, 2 = long) */
231 16, /* bitsize */
232 false, /* pc_relative */
233 0, /* bitpos */
234 complain_overflow_bitfield, /* complain_on_overflow */
235 bfd_elf_generic_reloc, /* special_function */
236 "R_PPC_ADDR16", /* name */
237 false, /* partial_inplace */
238 0, /* src_mask */
239 0xffff, /* dst_mask */
240 false), /* pcrel_offset */
241
242 /* A 16 bit relocation without overflow. */
243 HOWTO (R_PPC_ADDR16_LO, /* type */
244 0, /* rightshift */
245 1, /* size (0 = byte, 1 = short, 2 = long) */
246 16, /* bitsize */
247 false, /* pc_relative */
248 0, /* bitpos */
249 complain_overflow_dont,/* complain_on_overflow */
250 bfd_elf_generic_reloc, /* special_function */
251 "R_PPC_ADDR16_LO", /* name */
252 false, /* partial_inplace */
253 0, /* src_mask */
254 0xffff, /* dst_mask */
255 false), /* pcrel_offset */
256
257 /* The high order 16 bits of an address. */
258 HOWTO (R_PPC_ADDR16_HI, /* type */
259 16, /* rightshift */
260 1, /* size (0 = byte, 1 = short, 2 = long) */
261 16, /* bitsize */
262 false, /* pc_relative */
263 0, /* bitpos */
264 complain_overflow_dont, /* complain_on_overflow */
265 bfd_elf_generic_reloc, /* special_function */
266 "R_PPC_ADDR16_HI", /* name */
267 false, /* partial_inplace */
268 0, /* src_mask */
269 0xffff, /* dst_mask */
270 false), /* pcrel_offset */
271
272 /* The high order 16 bits of an address, plus 1 if the contents of
273 the low 16 bits, treated as a signed number, is negative. */
274 HOWTO (R_PPC_ADDR16_HA, /* type */
275 16, /* rightshift */
276 1, /* size (0 = byte, 1 = short, 2 = long) */
277 16, /* bitsize */
278 false, /* pc_relative */
279 0, /* bitpos */
280 complain_overflow_dont, /* complain_on_overflow */
281 ppc_elf_addr16_ha_reloc, /* special_function */
282 "R_PPC_ADDR16_HA", /* name */
283 false, /* partial_inplace */
284 0, /* src_mask */
285 0xffff, /* dst_mask */
286 false), /* pcrel_offset */
287
288 /* An absolute 16 bit branch; the lower two bits must be zero.
289 FIXME: we don't check that, we just clear them. */
290 HOWTO (R_PPC_ADDR14, /* type */
291 0, /* rightshift */
292 2, /* size (0 = byte, 1 = short, 2 = long) */
293 16, /* bitsize */
294 false, /* pc_relative */
295 0, /* bitpos */
296 complain_overflow_bitfield, /* complain_on_overflow */
297 bfd_elf_generic_reloc, /* special_function */
298 "R_PPC_ADDR14", /* name */
299 false, /* partial_inplace */
300 0, /* src_mask */
301 0xfffc, /* dst_mask */
302 false), /* pcrel_offset */
303
304 /* An absolute 16 bit branch, for which bit 10 should be set to
305 indicate that the branch is expected to be taken. The lower two
306 bits must be zero. */
307 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
308 0, /* rightshift */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
310 16, /* bitsize */
311 false, /* pc_relative */
312 0, /* bitpos */
313 complain_overflow_bitfield, /* complain_on_overflow */
314 bfd_elf_generic_reloc, /* special_function */
315 "R_PPC_ADDR14_BRTAKEN",/* name */
316 false, /* partial_inplace */
317 0, /* src_mask */
318 0xfffc, /* dst_mask */
319 false), /* pcrel_offset */
320
321 /* An absolute 16 bit branch, for which bit 10 should be set to
322 indicate that the branch is not expected to be taken. The lower
323 two bits must be zero. */
324 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
325 0, /* rightshift */
326 2, /* size (0 = byte, 1 = short, 2 = long) */
327 16, /* bitsize */
328 false, /* pc_relative */
329 0, /* bitpos */
330 complain_overflow_bitfield, /* complain_on_overflow */
331 bfd_elf_generic_reloc, /* special_function */
332 "R_PPC_ADDR14_BRNTAKEN",/* name */
333 false, /* partial_inplace */
334 0, /* src_mask */
335 0xfffc, /* dst_mask */
336 false), /* pcrel_offset */
337
338 /* A relative 26 bit branch; the lower two bits must be zero. */
339 HOWTO (R_PPC_REL24, /* type */
340 0, /* rightshift */
341 2, /* size (0 = byte, 1 = short, 2 = long) */
342 26, /* bitsize */
343 true, /* pc_relative */
344 0, /* bitpos */
345 complain_overflow_signed, /* complain_on_overflow */
346 bfd_elf_generic_reloc, /* special_function */
347 "R_PPC_REL24", /* name */
348 false, /* partial_inplace */
349 0, /* src_mask */
350 0x3fffffc, /* dst_mask */
351 true), /* pcrel_offset */
352
353 /* A relative 16 bit branch; the lower two bits must be zero. */
354 HOWTO (R_PPC_REL14, /* type */
355 0, /* rightshift */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
357 16, /* bitsize */
358 true, /* pc_relative */
359 0, /* bitpos */
360 complain_overflow_signed, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_PPC_REL14", /* name */
363 false, /* partial_inplace */
364 0, /* src_mask */
365 0xfffc, /* dst_mask */
366 true), /* pcrel_offset */
367
368 /* A relative 16 bit branch. Bit 10 should be set to indicate that
369 the branch is expected to be taken. The lower two bits must be
370 zero. */
371 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
372 0, /* rightshift */
373 2, /* size (0 = byte, 1 = short, 2 = long) */
374 16, /* bitsize */
375 true, /* pc_relative */
376 0, /* bitpos */
377 complain_overflow_signed, /* complain_on_overflow */
378 bfd_elf_generic_reloc, /* special_function */
379 "R_PPC_REL14_BRTAKEN", /* name */
380 false, /* partial_inplace */
381 0, /* src_mask */
382 0xfffc, /* dst_mask */
383 true), /* pcrel_offset */
384
385 /* A relative 16 bit branch. Bit 10 should be set to indicate that
386 the branch is not expected to be taken. The lower two bits must
387 be zero. */
388 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
389 0, /* rightshift */
390 2, /* size (0 = byte, 1 = short, 2 = long) */
391 16, /* bitsize */
392 true, /* pc_relative */
393 0, /* bitpos */
394 complain_overflow_signed, /* complain_on_overflow */
395 bfd_elf_generic_reloc, /* special_function */
396 "R_PPC_REL14_BRNTAKEN",/* name */
397 false, /* partial_inplace */
398 0, /* src_mask */
399 0xfffc, /* dst_mask */
400 true), /* pcrel_offset */
401
402 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
403 symbol. */
404 HOWTO (R_PPC_GOT16, /* type */
405 0, /* rightshift */
406 1, /* size (0 = byte, 1 = short, 2 = long) */
407 16, /* bitsize */
408 false, /* pc_relative */
409 0, /* bitpos */
410 complain_overflow_signed, /* complain_on_overflow */
411 bfd_elf_generic_reloc, /* special_function */
412 "R_PPC_GOT16", /* name */
413 false, /* partial_inplace */
414 0, /* src_mask */
415 0xffff, /* dst_mask */
416 false), /* pcrel_offset */
417
418 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
419 the symbol. */
420 HOWTO (R_PPC_GOT16_LO, /* type */
421 0, /* rightshift */
422 1, /* size (0 = byte, 1 = short, 2 = long) */
423 16, /* bitsize */
424 false, /* pc_relative */
425 0, /* bitpos */
426 complain_overflow_bitfield, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_PPC_GOT16_LO", /* name */
429 false, /* partial_inplace */
430 0, /* src_mask */
431 0xffff, /* dst_mask */
432 false), /* pcrel_offset */
433
434 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
435 the symbol. */
436 HOWTO (R_PPC_GOT16_HI, /* type */
437 16, /* rightshift */
438 1, /* size (0 = byte, 1 = short, 2 = long) */
439 16, /* bitsize */
440 false, /* pc_relative */
441 0, /* bitpos */
442 complain_overflow_bitfield, /* complain_on_overflow */
443 bfd_elf_generic_reloc, /* special_function */
444 "R_PPC_GOT16_HI", /* name */
445 false, /* partial_inplace */
446 0, /* src_mask */
447 0xffff, /* dst_mask */
448 false), /* pcrel_offset */
449
450 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
451 the symbol. */
452 HOWTO (R_PPC_GOT16_HA, /* type */
453 0, /* rightshift */
454 1, /* size (0 = byte, 1 = short, 2 = long) */
455 16, /* bitsize */
456 false, /* pc_relative */
457 0, /* bitpos */
458 complain_overflow_bitfield, /* complain_on_overflow */
459 bfd_elf_generic_reloc, /* special_function */
460 "R_PPC_GOT16_HA", /* name */
461 false, /* partial_inplace */
462 0, /* src_mask */
463 0xffff, /* dst_mask */
464 false), /* pcrel_offset */
465
466 /* Like R_PPC_REL24, but referring to the procedure linkage table
467 entry for the symbol. FIXME: Not supported. */
468 HOWTO (R_PPC_PLTREL24, /* type */
469 0, /* rightshift */
470 2, /* size (0 = byte, 1 = short, 2 = long) */
471 26, /* bitsize */
472 true, /* pc_relative */
473 0, /* bitpos */
474 complain_overflow_signed, /* complain_on_overflow */
475 bfd_elf_generic_reloc, /* special_function */
476 "R_PPC_PLTREL24", /* name */
477 false, /* partial_inplace */
478 0, /* src_mask */
479 0x3fffffc, /* dst_mask */
480 true), /* pcrel_offset */
481
482 /* This is used only by the dynamic linker. The symbol should exist
483 both in the object being run and in some shared library. The
484 dynamic linker copies the data addressed by the symbol from the
485 shared library into the object. I have no idea what the purpose
486 of this is. */
487 HOWTO (R_PPC_COPY, /* type */
488 0, /* rightshift */
489 2, /* size (0 = byte, 1 = short, 2 = long) */
490 32, /* bitsize */
491 false, /* pc_relative */
492 0, /* bitpos */
493 complain_overflow_bitfield, /* complain_on_overflow */
494 bfd_elf_generic_reloc, /* special_function */
495 "R_PPC_COPY", /* name */
496 false, /* partial_inplace */
497 0, /* src_mask */
498 0, /* dst_mask */
499 false), /* pcrel_offset */
500
501 /* Like R_PPC_ADDR32, but used when setting global offset table
502 entries. */
503 HOWTO (R_PPC_GLOB_DAT, /* type */
504 0, /* rightshift */
505 2, /* size (0 = byte, 1 = short, 2 = long) */
506 32, /* bitsize */
507 false, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_bitfield, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_PPC_GLOB_DAT", /* name */
512 false, /* partial_inplace */
513 0, /* src_mask */
514 0xffffffff, /* dst_mask */
515 false), /* pcrel_offset */
516
517 /* Marks a procedure linkage table entry for a symbol. */
518 HOWTO (R_PPC_JMP_SLOT, /* type */
519 0, /* rightshift */
520 2, /* size (0 = byte, 1 = short, 2 = long) */
521 32, /* bitsize */
522 false, /* pc_relative */
523 0, /* bitpos */
524 complain_overflow_bitfield, /* complain_on_overflow */
525 bfd_elf_generic_reloc, /* special_function */
526 "R_PPC_JMP_SLOT", /* name */
527 false, /* partial_inplace */
528 0, /* src_mask */
529 0, /* dst_mask */
530 false), /* pcrel_offset */
531
532 /* Used only by the dynamic linker. When the object is run, this
533 longword is set to the load address of the object, plus the
534 addend. */
535 HOWTO (R_PPC_RELATIVE, /* type */
536 0, /* rightshift */
537 2, /* size (0 = byte, 1 = short, 2 = long) */
538 32, /* bitsize */
539 false, /* pc_relative */
540 0, /* bitpos */
541 complain_overflow_bitfield, /* complain_on_overflow */
542 bfd_elf_generic_reloc, /* special_function */
543 "R_PPC_RELATIVE", /* name */
544 false, /* partial_inplace */
545 0, /* src_mask */
546 0xffffffff, /* dst_mask */
547 false), /* pcrel_offset */
548
549 /* Like R_PPC_REL24, but uses the value of the symbol within the
550 object rather than the final value. Normally used for
551 _GLOBAL_OFFSET_TABLE_. FIXME: Not supported. */
552 HOWTO (R_PPC_LOCAL24PC, /* type */
553 0, /* rightshift */
554 2, /* size (0 = byte, 1 = short, 2 = long) */
555 26, /* bitsize */
556 true, /* pc_relative */
557 0, /* bitpos */
558 complain_overflow_signed, /* complain_on_overflow */
559 bfd_elf_generic_reloc, /* special_function */
560 "R_PPC_LOCAL24PC", /* name */
561 false, /* partial_inplace */
562 0, /* src_mask */
563 0x3fffffc, /* dst_mask */
564 true), /* pcrel_offset */
565
566 /* Like R_PPC_ADDR32, but may be unaligned. */
567 HOWTO (R_PPC_UADDR32, /* type */
568 0, /* rightshift */
569 2, /* size (0 = byte, 1 = short, 2 = long) */
570 32, /* bitsize */
571 false, /* pc_relative */
572 0, /* bitpos */
573 complain_overflow_bitfield, /* complain_on_overflow */
574 bfd_elf_generic_reloc, /* special_function */
575 "R_PPC_UADDR32", /* name */
576 false, /* partial_inplace */
577 0, /* src_mask */
578 0xffffffff, /* dst_mask */
579 false), /* pcrel_offset */
580
581 /* Like R_PPC_ADDR16, but may be unaligned. */
582 HOWTO (R_PPC_UADDR16, /* type */
583 0, /* rightshift */
584 1, /* size (0 = byte, 1 = short, 2 = long) */
585 16, /* bitsize */
586 false, /* pc_relative */
587 0, /* bitpos */
588 complain_overflow_bitfield, /* complain_on_overflow */
589 bfd_elf_generic_reloc, /* special_function */
590 "R_PPC_UADDR16", /* name */
591 false, /* partial_inplace */
592 0, /* src_mask */
593 0xffff, /* dst_mask */
594 false), /* pcrel_offset */
595
596 /* 32-bit PC relative */
597 HOWTO (R_PPC_REL32, /* type */
598 0, /* rightshift */
599 2, /* size (0 = byte, 1 = short, 2 = long) */
600 32, /* bitsize */
601 true, /* pc_relative */
602 0, /* bitpos */
603 complain_overflow_bitfield, /* complain_on_overflow */
604 bfd_elf_generic_reloc, /* special_function */
605 "R_PPC_REL32", /* name */
606 false, /* partial_inplace */
607 0, /* src_mask */
608 0xffffffff, /* dst_mask */
609 true), /* pcrel_offset */
610
611 /* 32-bit relocation to the symbol's procedure linkage table.
612 FIXEME: not supported. */
613 HOWTO (R_PPC_PLT32, /* type */
614 0, /* rightshift */
615 2, /* size (0 = byte, 1 = short, 2 = long) */
616 32, /* bitsize */
617 false, /* pc_relative */
618 0, /* bitpos */
619 complain_overflow_bitfield, /* complain_on_overflow */
620 bfd_elf_generic_reloc, /* special_function */
621 "R_PPC_PLT32", /* name */
622 false, /* partial_inplace */
623 0, /* src_mask */
624 0, /* dst_mask */
625 false), /* pcrel_offset */
626
627 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
628 FIXEME: not supported. */
629 HOWTO (R_PPC_PLTREL32, /* type */
630 0, /* rightshift */
631 2, /* size (0 = byte, 1 = short, 2 = long) */
632 32, /* bitsize */
633 true, /* pc_relative */
634 0, /* bitpos */
635 complain_overflow_bitfield, /* complain_on_overflow */
636 bfd_elf_generic_reloc, /* special_function */
637 "R_PPC_PLTREL32", /* name */
638 false, /* partial_inplace */
639 0, /* src_mask */
640 0, /* dst_mask */
641 true), /* pcrel_offset */
642
643 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
644 the symbol. */
645 HOWTO (R_PPC_PLT16_LO, /* type */
646 0, /* rightshift */
647 1, /* size (0 = byte, 1 = short, 2 = long) */
648 16, /* bitsize */
649 false, /* pc_relative */
650 0, /* bitpos */
651 complain_overflow_bitfield, /* complain_on_overflow */
652 bfd_elf_generic_reloc, /* special_function */
653 "R_PPC_PLT16_LO", /* name */
654 false, /* partial_inplace */
655 0, /* src_mask */
656 0xffff, /* dst_mask */
657 false), /* pcrel_offset */
658
659 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
660 the symbol. */
661 HOWTO (R_PPC_PLT16_HI, /* type */
662 16, /* rightshift */
663 1, /* size (0 = byte, 1 = short, 2 = long) */
664 16, /* bitsize */
665 false, /* pc_relative */
666 0, /* bitpos */
667 complain_overflow_bitfield, /* complain_on_overflow */
668 bfd_elf_generic_reloc, /* special_function */
669 "R_PPC_PLT16_HI", /* name */
670 false, /* partial_inplace */
671 0, /* src_mask */
672 0xffff, /* dst_mask */
673 false), /* pcrel_offset */
674
675 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
676 the symbol. FIXME: Not supported. */
677 HOWTO (R_PPC_PLT16_HA, /* type */
678 0, /* rightshift */
679 1, /* size (0 = byte, 1 = short, 2 = long) */
680 16, /* bitsize */
681 false, /* pc_relative */
682 0, /* bitpos */
683 complain_overflow_bitfield, /* complain_on_overflow */
684 bfd_elf_generic_reloc, /* special_function */
685 "R_PPC_PLT16_HA", /* name */
686 false, /* partial_inplace */
687 0, /* src_mask */
688 0xffff, /* dst_mask */
689 false), /* pcrel_offset */
690
691 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
692 small data items. */
693 HOWTO (R_PPC_SDAREL16, /* type */
694 0, /* rightshift */
695 1, /* size (0 = byte, 1 = short, 2 = long) */
696 16, /* bitsize */
697 false, /* pc_relative */
698 0, /* bitpos */
699 complain_overflow_signed, /* complain_on_overflow */
700 bfd_elf_generic_reloc, /* special_function */
701 "R_PPC_SDAREL16", /* name */
702 false, /* partial_inplace */
703 0, /* src_mask */
704 0xffff, /* dst_mask */
705 false), /* pcrel_offset */
706
707 /* 32-bit section relative relocation. */
708 HOWTO (R_PPC_SECTOFF, /* type */
709 0, /* rightshift */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
711 32, /* bitsize */
712 true, /* pc_relative */
713 0, /* bitpos */
714 complain_overflow_bitfield, /* complain_on_overflow */
715 bfd_elf_generic_reloc, /* special_function */
716 "R_PPC_SECTOFF", /* name */
717 false, /* partial_inplace */
718 0, /* src_mask */
719 0, /* dst_mask */
720 true), /* pcrel_offset */
721
722 /* 16-bit lower half section relative relocation. */
723 HOWTO (R_PPC_SECTOFF_LO, /* type */
724 0, /* rightshift */
725 1, /* size (0 = byte, 1 = short, 2 = long) */
726 16, /* bitsize */
727 false, /* pc_relative */
728 0, /* bitpos */
729 complain_overflow_bitfield, /* complain_on_overflow */
730 bfd_elf_generic_reloc, /* special_function */
731 "R_PPC_SECTOFF_LO", /* name */
732 false, /* partial_inplace */
733 0, /* src_mask */
734 0xffff, /* dst_mask */
735 false), /* pcrel_offset */
736
737 /* 16-bit upper half section relative relocation. */
738 HOWTO (R_PPC_SECTOFF_HI, /* type */
739 16, /* rightshift */
740 1, /* size (0 = byte, 1 = short, 2 = long) */
741 16, /* bitsize */
742 false, /* pc_relative */
743 0, /* bitpos */
744 complain_overflow_bitfield, /* complain_on_overflow */
745 bfd_elf_generic_reloc, /* special_function */
746 "R_PPC_SECTOFF_HI", /* name */
747 false, /* partial_inplace */
748 0, /* src_mask */
749 0xffff, /* dst_mask */
750 false), /* pcrel_offset */
751
752 /* 16-bit upper half adjusted section relative relocation. */
753 HOWTO (R_PPC_SECTOFF_HA, /* type */
754 0, /* rightshift */
755 1, /* size (0 = byte, 1 = short, 2 = long) */
756 16, /* bitsize */
757 false, /* pc_relative */
758 0, /* bitpos */
759 complain_overflow_bitfield, /* complain_on_overflow */
760 bfd_elf_generic_reloc, /* special_function */
761 "R_PPC_SECTOFF_HA", /* name */
762 false, /* partial_inplace */
763 0, /* src_mask */
764 0xffff, /* dst_mask */
765 false), /* pcrel_offset */
766
767 /* The remaining relocs are from the Embedded ELF ABI, and are not
768 in the SVR4 ELF ABI. */
769
770 /* 32 bit value resulting from the addend minus the symbol */
771 HOWTO (R_PPC_EMB_NADDR32, /* type */
772 0, /* rightshift */
773 2, /* size (0 = byte, 1 = short, 2 = long) */
774 32, /* bitsize */
775 false, /* pc_relative */
776 0, /* bitpos */
777 complain_overflow_bitfield, /* complain_on_overflow */
778 bfd_elf_generic_reloc, /* special_function */
779 "R_PPC_EMB_NADDR32", /* name */
780 false, /* partial_inplace */
781 0, /* src_mask */
782 0xffffffff, /* dst_mask */
783 false), /* pcrel_offset */
784
785 /* 16 bit value resulting from the addend minus the symbol */
786 HOWTO (R_PPC_EMB_NADDR16, /* type */
787 0, /* rightshift */
788 1, /* size (0 = byte, 1 = short, 2 = long) */
789 16, /* bitsize */
790 false, /* pc_relative */
791 0, /* bitpos */
792 complain_overflow_bitfield, /* complain_on_overflow */
793 bfd_elf_generic_reloc, /* special_function */
794 "R_PPC_EMB_NADDR16", /* name */
795 false, /* partial_inplace */
796 0, /* src_mask */
797 0xffff, /* dst_mask */
798 false), /* pcrel_offset */
799
800 /* 16 bit value resulting from the addend minus the symbol */
801 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
802 0, /* rightshift */
803 1, /* size (0 = byte, 1 = short, 2 = long) */
804 16, /* bitsize */
805 false, /* pc_relative */
806 0, /* bitpos */
807 complain_overflow_dont,/* complain_on_overflow */
808 bfd_elf_generic_reloc, /* special_function */
809 "R_PPC_EMB_ADDR16_LO", /* name */
810 false, /* partial_inplace */
811 0, /* src_mask */
812 0xffff, /* dst_mask */
813 false), /* pcrel_offset */
814
815 /* The high order 16 bits of the addend minus the symbol */
816 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
817 16, /* rightshift */
818 1, /* size (0 = byte, 1 = short, 2 = long) */
819 16, /* bitsize */
820 false, /* pc_relative */
821 0, /* bitpos */
822 complain_overflow_dont, /* complain_on_overflow */
823 bfd_elf_generic_reloc, /* special_function */
824 "R_PPC_EMB_NADDR16_HI", /* name */
825 false, /* partial_inplace */
826 0, /* src_mask */
827 0xffff, /* dst_mask */
828 false), /* pcrel_offset */
829
830 /* The high order 16 bits of the result of the addend minus the address,
831 plus 1 if the contents of the low 16 bits, treated as a signed number,
832 is negative. */
833 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
834 16, /* rightshift */
835 1, /* size (0 = byte, 1 = short, 2 = long) */
836 16, /* bitsize */
837 false, /* pc_relative */
838 0, /* bitpos */
839 complain_overflow_dont, /* complain_on_overflow */
840 bfd_elf_generic_reloc, /* special_function */
841 "R_PPC_EMB_NADDR16_HA", /* name */
842 false, /* partial_inplace */
843 0, /* src_mask */
844 0xffff, /* dst_mask */
845 false), /* pcrel_offset */
846
847 /* 16 bit value resulting from allocating a 4 byte word to hold an
848 address in the .sdata section, and returning the offset from
849 _SDA_BASE_ for that relocation */
850 HOWTO (R_PPC_EMB_SDAI16, /* type */
851 0, /* rightshift */
852 1, /* size (0 = byte, 1 = short, 2 = long) */
853 16, /* bitsize */
854 false, /* pc_relative */
855 0, /* bitpos */
856 complain_overflow_bitfield, /* complain_on_overflow */
857 bfd_elf_generic_reloc, /* special_function */
858 "R_PPC_EMB_SDAI16", /* name */
859 false, /* partial_inplace */
860 0, /* src_mask */
861 0xffff, /* dst_mask */
862 false), /* pcrel_offset */
863
864 /* 16 bit value resulting from allocating a 4 byte word to hold an
865 address in the .sdata2 section, and returning the offset from
866 _SDA2_BASE_ for that relocation */
867 HOWTO (R_PPC_EMB_SDA2I16, /* type */
868 0, /* rightshift */
869 1, /* size (0 = byte, 1 = short, 2 = long) */
870 16, /* bitsize */
871 false, /* pc_relative */
872 0, /* bitpos */
873 complain_overflow_bitfield, /* complain_on_overflow */
874 bfd_elf_generic_reloc, /* special_function */
875 "R_PPC_EMB_SDA2I16", /* name */
876 false, /* partial_inplace */
877 0, /* src_mask */
878 0xffff, /* dst_mask */
879 false), /* pcrel_offset */
880
881 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
882 small data items. */
883 HOWTO (R_PPC_EMB_SDA2REL, /* type */
884 0, /* rightshift */
885 1, /* size (0 = byte, 1 = short, 2 = long) */
886 16, /* bitsize */
887 false, /* pc_relative */
888 0, /* bitpos */
889 complain_overflow_signed, /* complain_on_overflow */
890 bfd_elf_generic_reloc, /* special_function */
891 "R_PPC_EMB_SDA2REL", /* name */
892 false, /* partial_inplace */
893 0, /* src_mask */
894 0xffff, /* dst_mask */
895 false), /* pcrel_offset */
896
897 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
898 signed offset from the appropriate base, and filling in the register
899 field with the appropriate register (0, 2, or 13). */
900 HOWTO (R_PPC_EMB_SDA21, /* type */
901 0, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 16, /* bitsize */
904 false, /* pc_relative */
905 0, /* bitpos */
906 complain_overflow_signed, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_PPC_EMB_SDA21", /* name */
909 false, /* partial_inplace */
910 0, /* src_mask */
911 0xffff, /* dst_mask */
912 false), /* pcrel_offset */
913
914 /* Relocation not handled: R_PPC_EMB_MRKREF */
915 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
916 /* Relocation not handled: R_PPC_EMB_RELST_LO */
917 /* Relocation not handled: R_PPC_EMB_RELST_HI */
918 /* Relocation not handled: R_PPC_EMB_RELST_HA */
919 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
920
921 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
922 in the 16 bit signed offset from the appropriate base, and filling in the
923 register field with the appropriate register (0, 2, or 13). */
924 HOWTO (R_PPC_EMB_RELSDA, /* type */
925 0, /* rightshift */
926 1, /* size (0 = byte, 1 = short, 2 = long) */
927 16, /* bitsize */
928 true, /* pc_relative */
929 0, /* bitpos */
930 complain_overflow_signed, /* complain_on_overflow */
931 bfd_elf_generic_reloc, /* special_function */
932 "R_PPC_EMB_RELSDA", /* name */
933 false, /* partial_inplace */
934 0, /* src_mask */
935 0xffff, /* dst_mask */
936 false), /* pcrel_offset */
937
938 /* Phony reloc to handle AIX style TOC entries */
939 HOWTO (R_PPC_TOC16, /* type */
940 0, /* rightshift */
941 1, /* size (0 = byte, 1 = short, 2 = long) */
942 16, /* bitsize */
943 false, /* pc_relative */
944 0, /* bitpos */
945 complain_overflow_signed, /* complain_on_overflow */
946 bfd_elf_generic_reloc, /* special_function */
947 "R_PPC_TOC16", /* name */
948 false, /* partial_inplace */
949 0, /* src_mask */
950 0xffff, /* dst_mask */
951 false), /* pcrel_offset */
952 };
953
954 \f
955 /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
956
957 static void
958 ppc_elf_howto_init ()
959 {
960 unsigned int i, type;
961
962 for (i = 0; i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); i++)
963 {
964 type = ppc_elf_howto_raw[i].type;
965 BFD_ASSERT (type < sizeof(ppc_elf_howto_table) / sizeof(ppc_elf_howto_table[0]));
966 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
967 }
968 }
969
970 \f
971 static reloc_howto_type *
972 ppc_elf_reloc_type_lookup (abfd, code)
973 bfd *abfd;
974 bfd_reloc_code_real_type code;
975 {
976 enum ppc_reloc_type ppc_reloc = R_PPC_NONE;
977
978 if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
979 ppc_elf_howto_init ();
980
981 switch ((int)code)
982 {
983 default:
984 return (reloc_howto_type *)NULL;
985
986 case BFD_RELOC_NONE: ppc_reloc = R_PPC_NONE; break;
987 case BFD_RELOC_32: ppc_reloc = R_PPC_ADDR32; break;
988 case BFD_RELOC_PPC_BA26: ppc_reloc = R_PPC_ADDR24; break;
989 case BFD_RELOC_16: ppc_reloc = R_PPC_ADDR16; break;
990 case BFD_RELOC_LO16: ppc_reloc = R_PPC_ADDR16_LO; break;
991 case BFD_RELOC_HI16: ppc_reloc = R_PPC_ADDR16_HI; break;
992 case BFD_RELOC_HI16_S: ppc_reloc = R_PPC_ADDR16_HA; break;
993 case BFD_RELOC_PPC_BA16: ppc_reloc = R_PPC_ADDR14; break;
994 case BFD_RELOC_PPC_BA16_BRTAKEN: ppc_reloc = R_PPC_ADDR14_BRTAKEN; break;
995 case BFD_RELOC_PPC_BA16_BRNTAKEN: ppc_reloc = R_PPC_ADDR14_BRNTAKEN; break;
996 case BFD_RELOC_PPC_B26: ppc_reloc = R_PPC_REL24; break;
997 case BFD_RELOC_PPC_B16: ppc_reloc = R_PPC_REL14; break;
998 case BFD_RELOC_PPC_B16_BRTAKEN: ppc_reloc = R_PPC_REL14_BRTAKEN; break;
999 case BFD_RELOC_PPC_B16_BRNTAKEN: ppc_reloc = R_PPC_REL14_BRNTAKEN; break;
1000 case BFD_RELOC_16_GOTOFF: ppc_reloc = R_PPC_GOT16; break;
1001 case BFD_RELOC_LO16_GOTOFF: ppc_reloc = R_PPC_GOT16_LO; break;
1002 case BFD_RELOC_HI16_GOTOFF: ppc_reloc = R_PPC_GOT16_HI; break;
1003 case BFD_RELOC_HI16_S_GOTOFF: ppc_reloc = R_PPC_GOT16_HA; break;
1004 case BFD_RELOC_24_PLT_PCREL: ppc_reloc = R_PPC_PLTREL24; break;
1005 case BFD_RELOC_PPC_COPY: ppc_reloc = R_PPC_COPY; break;
1006 case BFD_RELOC_PPC_GLOB_DAT: ppc_reloc = R_PPC_GLOB_DAT; break;
1007 case BFD_RELOC_PPC_LOCAL24PC: ppc_reloc = R_PPC_LOCAL24PC; break;
1008 case BFD_RELOC_32_PCREL: ppc_reloc = R_PPC_REL32; break;
1009 case BFD_RELOC_32_PLTOFF: ppc_reloc = R_PPC_PLT32; break;
1010 case BFD_RELOC_32_PLT_PCREL: ppc_reloc = R_PPC_PLTREL32; break;
1011 case BFD_RELOC_LO16_PLTOFF: ppc_reloc = R_PPC_PLT16_LO; break;
1012 case BFD_RELOC_HI16_PLTOFF: ppc_reloc = R_PPC_PLT16_HI; break;
1013 case BFD_RELOC_HI16_S_PLTOFF: ppc_reloc = R_PPC_PLT16_HA; break;
1014 case BFD_RELOC_GPREL16: ppc_reloc = R_PPC_SDAREL16; break;
1015 case BFD_RELOC_32_BASEREL: ppc_reloc = R_PPC_SECTOFF; break;
1016 case BFD_RELOC_LO16_BASEREL: ppc_reloc = R_PPC_SECTOFF_LO; break;
1017 case BFD_RELOC_HI16_BASEREL: ppc_reloc = R_PPC_SECTOFF_HI; break;
1018 case BFD_RELOC_HI16_S_BASEREL: ppc_reloc = R_PPC_SECTOFF_HA; break;
1019 case BFD_RELOC_CTOR: ppc_reloc = R_PPC_ADDR32; break;
1020 case BFD_RELOC_PPC_TOC16: ppc_reloc = R_PPC_TOC16; break;
1021 case BFD_RELOC_PPC_EMB_NADDR32: ppc_reloc = R_PPC_EMB_NADDR32; break;
1022 case BFD_RELOC_PPC_EMB_NADDR16: ppc_reloc = R_PPC_EMB_NADDR16; break;
1023 case BFD_RELOC_PPC_EMB_NADDR16_LO: ppc_reloc = R_PPC_EMB_NADDR16_LO; break;
1024 case BFD_RELOC_PPC_EMB_NADDR16_HI: ppc_reloc = R_PPC_EMB_NADDR16_HI; break;
1025 case BFD_RELOC_PPC_EMB_NADDR16_HA: ppc_reloc = R_PPC_EMB_NADDR16_HA; break;
1026 case BFD_RELOC_PPC_EMB_SDAI16: ppc_reloc = R_PPC_EMB_SDAI16; break;
1027 case BFD_RELOC_PPC_EMB_SDA2I16: ppc_reloc = R_PPC_EMB_SDA2I16; break;
1028 case BFD_RELOC_PPC_EMB_SDA2REL: ppc_reloc = R_PPC_EMB_SDA2REL; break;
1029 case BFD_RELOC_PPC_EMB_SDA21: ppc_reloc = R_PPC_EMB_SDA21; break;
1030 case BFD_RELOC_PPC_EMB_MRKREF: ppc_reloc = R_PPC_EMB_MRKREF; break;
1031 case BFD_RELOC_PPC_EMB_RELSEC16: ppc_reloc = R_PPC_EMB_RELSEC16; break;
1032 case BFD_RELOC_PPC_EMB_RELST_LO: ppc_reloc = R_PPC_EMB_RELST_LO; break;
1033 case BFD_RELOC_PPC_EMB_RELST_HI: ppc_reloc = R_PPC_EMB_RELST_HI; break;
1034 case BFD_RELOC_PPC_EMB_RELST_HA: ppc_reloc = R_PPC_EMB_RELST_HA; break;
1035 case BFD_RELOC_PPC_EMB_BIT_FLD: ppc_reloc = R_PPC_EMB_BIT_FLD; break;
1036 case BFD_RELOC_PPC_EMB_RELSDA: ppc_reloc = R_PPC_EMB_RELSDA; break;
1037 }
1038
1039 return ppc_elf_howto_table[ (int)ppc_reloc ];
1040 };
1041
1042 /* Set the howto pointer for a PowerPC ELF reloc. */
1043
1044 static void
1045 ppc_elf_info_to_howto (abfd, cache_ptr, dst)
1046 bfd *abfd;
1047 arelent *cache_ptr;
1048 Elf32_Internal_Rela *dst;
1049 {
1050 if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
1051 ppc_elf_howto_init ();
1052
1053 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
1054 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
1055 }
1056
1057 /* Handle the R_PPC_ADDR16_HA reloc. */
1058
1059 static bfd_reloc_status_type
1060 ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section,
1061 output_bfd, error_message)
1062 bfd *abfd;
1063 arelent *reloc_entry;
1064 asymbol *symbol;
1065 PTR data;
1066 asection *input_section;
1067 bfd *output_bfd;
1068 char **error_message;
1069 {
1070 bfd_vma relocation;
1071
1072 if (output_bfd != NULL)
1073 {
1074 reloc_entry->address += input_section->output_offset;
1075 return bfd_reloc_ok;
1076 }
1077
1078 if (reloc_entry->address > input_section->_cooked_size)
1079 return bfd_reloc_outofrange;
1080
1081 if (bfd_is_com_section (symbol->section))
1082 relocation = 0;
1083 else
1084 relocation = symbol->value;
1085
1086 relocation += symbol->section->output_section->vma;
1087 relocation += symbol->section->output_offset;
1088 relocation += reloc_entry->addend;
1089
1090 reloc_entry->addend += (relocation & 0x8000) << 1;
1091
1092 return bfd_reloc_continue;
1093 }
1094
1095 /* Function to set whether a module needs the -mrelocatable bit set. */
1096
1097 static boolean
1098 ppc_elf_set_private_flags (abfd, flags)
1099 bfd *abfd;
1100 flagword flags;
1101 {
1102 BFD_ASSERT (!elf_flags_init (abfd)
1103 || elf_elfheader (abfd)->e_flags == flags);
1104
1105 elf_elfheader (abfd)->e_flags = flags;
1106 elf_flags_init (abfd) = true;
1107 return true;
1108 }
1109
1110 /* Copy backend specific data from one object module to another */
1111 static boolean
1112 ppc_elf_copy_private_bfd_data (ibfd, obfd)
1113 bfd *ibfd;
1114 bfd *obfd;
1115 {
1116 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1117 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1118 return true;
1119
1120 BFD_ASSERT (!elf_flags_init (obfd)
1121 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
1122
1123 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
1124 elf_flags_init (obfd) = true;
1125 return true;
1126 }
1127
1128 /* Merge backend specific data from an object file to the output
1129 object file when linking */
1130 static boolean
1131 ppc_elf_merge_private_bfd_data (ibfd, obfd)
1132 bfd *ibfd;
1133 bfd *obfd;
1134 {
1135 flagword old_flags;
1136 flagword new_flags;
1137 boolean error;
1138
1139 /* Check if we have the same endianess */
1140 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1141 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
1142 {
1143 (*_bfd_error_handler)
1144 ("%s: compiled for a %s endian system and target is %s endian",
1145 bfd_get_filename (ibfd),
1146 bfd_big_endian (ibfd) ? "big" : "little",
1147 bfd_big_endian (obfd) ? "big" : "little");
1148
1149 bfd_set_error (bfd_error_wrong_format);
1150 return false;
1151 }
1152
1153 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1154 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1155 return true;
1156
1157 new_flags = elf_elfheader (ibfd)->e_flags;
1158 old_flags = elf_elfheader (obfd)->e_flags;
1159 if (!elf_flags_init (obfd)) /* First call, no flags set */
1160 {
1161 elf_flags_init (obfd) = true;
1162 elf_elfheader (obfd)->e_flags = new_flags;
1163 }
1164
1165 else if (new_flags == old_flags) /* Compatible flags are ok */
1166 ;
1167
1168 else /* Incompatible flags */
1169 {
1170 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib to be linked
1171 with either. */
1172 error = false;
1173 if ((new_flags & EF_PPC_RELOCATABLE) != 0
1174 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
1175 {
1176 error = true;
1177 (*_bfd_error_handler)
1178 ("%s: compiled with -mrelocatable and linked with modules compiled normally",
1179 bfd_get_filename (ibfd));
1180 }
1181 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
1182 && (old_flags & EF_PPC_RELOCATABLE) != 0)
1183 {
1184 error = true;
1185 (*_bfd_error_handler)
1186 ("%s: compiled normally and linked with modules compiled with -mrelocatable",
1187 bfd_get_filename (ibfd));
1188 }
1189 /* If -mrelocatable-lib is linked with an object without -mrelocatable-lib, turn off
1190 the -mrelocatable-lib, since at least one module isn't relocatable. */
1191 else if ((old_flags & EF_PPC_RELOCATABLE_LIB) != 0
1192 && (new_flags & EF_PPC_RELOCATABLE_LIB) == 0)
1193 elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
1194
1195
1196 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if any module uses it */
1197 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
1198
1199 new_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
1200 old_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
1201
1202 /* Warn about any other mismatches */
1203 if (new_flags != old_flags)
1204 {
1205 error = true;
1206 (*_bfd_error_handler)
1207 ("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)",
1208 bfd_get_filename (ibfd), (long)new_flags, (long)old_flags);
1209 }
1210
1211 if (error)
1212 {
1213 bfd_set_error (bfd_error_bad_value);
1214 return false;
1215 }
1216 }
1217
1218 return true;
1219 }
1220
1221 \f
1222 /* Handle a PowerPC specific section when reading an object file. This
1223 is called when elfcode.h finds a section with an unknown type. */
1224
1225 static boolean
1226 ppc_elf_section_from_shdr (abfd, hdr, name)
1227 bfd *abfd;
1228 Elf32_Internal_Shdr *hdr;
1229 char *name;
1230 {
1231 asection *newsect;
1232 flagword flags;
1233
1234 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
1235 return false;
1236
1237 newsect = hdr->bfd_section;
1238 flags = bfd_get_section_flags (abfd, newsect);
1239 if (hdr->sh_flags & SHF_EXCLUDE)
1240 flags |= SEC_EXCLUDE;
1241
1242 if (hdr->sh_type == SHT_ORDERED)
1243 flags |= SEC_SORT_ENTRIES;
1244
1245 bfd_set_section_flags (abfd, newsect, flags);
1246 return true;
1247 }
1248
1249 \f
1250 /* Set up any other section flags and such that may be necessary. */
1251
1252 boolean
1253 ppc_elf_fake_sections (abfd, shdr, asect)
1254 bfd *abfd;
1255 Elf32_Internal_Shdr *shdr;
1256 asection *asect;
1257 {
1258 if ((asect->flags & SEC_EXCLUDE) != 0)
1259 shdr->sh_flags |= SHF_EXCLUDE;
1260
1261 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
1262 shdr->sh_type = SHT_ORDERED;
1263
1264 return true;
1265 }
1266
1267 \f
1268 /* Create a special linker section */
1269 static elf_linker_section_t *
1270 ppc_elf_create_linker_section (abfd, info, which)
1271 bfd *abfd;
1272 struct bfd_link_info *info;
1273 enum elf_linker_section_enum which;
1274 {
1275 bfd *dynobj = elf_hash_table (info)->dynobj;
1276 elf_linker_section_t *lsect;
1277
1278 /* Record the first bfd section that needs the special section */
1279 if (!dynobj)
1280 dynobj = elf_hash_table (info)->dynobj = abfd;
1281
1282 /* If this is the first time, create the section */
1283 lsect = elf_linker_section (dynobj, which);
1284 if (!lsect)
1285 {
1286 elf_linker_section_t defaults;
1287 static elf_linker_section_t zero_section;
1288
1289 defaults = zero_section;
1290 defaults.which = which;
1291 defaults.hole_written_p = false;
1292 defaults.alignment = 2;
1293 defaults.flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1294 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1295
1296 switch (which)
1297 {
1298 default:
1299 (*_bfd_error_handler) ("%s: Unknown special linker type %d",
1300 bfd_get_filename (abfd),
1301 (int)which);
1302
1303 bfd_set_error (bfd_error_bad_value);
1304 return (elf_linker_section_t *)0;
1305
1306 case LINKER_SECTION_GOT: /* .got section */
1307 defaults.name = ".got";
1308 defaults.rel_name = ".rela.got";
1309 defaults.sym_name = "_GLOBAL_OFFSET_TABLE_";
1310 defaults.max_hole_offset = 32764;
1311 defaults.hole_size = 16;
1312 defaults.sym_offset = 4;
1313 break;
1314
1315 case LINKER_SECTION_PLT: /* .plt section */
1316 defaults.name = ".plt";
1317 defaults.rel_name = ".rela.plt";
1318 defaults.sym_name = (char *)0;
1319 defaults.max_hole_offset = 0;
1320 defaults.hole_size = 0;
1321 defaults.sym_offset = 0;
1322 defaults.flags &= ~SEC_LOAD;
1323 break;
1324
1325 case LINKER_SECTION_SDATA: /* .sdata/.sbss section */
1326 defaults.name = ".sdata";
1327 defaults.rel_name = ".rela.sdata";
1328 defaults.bss_name = ".sbss";
1329 defaults.sym_name = "_SDA_BASE_";
1330 defaults.sym_offset = 32768;
1331 break;
1332
1333 case LINKER_SECTION_SDATA2: /* .sdata2/.sbss2 section */
1334 defaults.name = ".sdata2";
1335 defaults.rel_name = ".rela.sdata2";
1336 defaults.bss_name = ".sbss2";
1337 defaults.sym_name = "_SDA2_BASE_";
1338 defaults.sym_offset = 32768;
1339 defaults.flags |= SEC_READONLY;
1340 break;
1341 }
1342
1343 lsect = _bfd_elf_create_linker_section (abfd, info, which, &defaults);
1344 }
1345
1346 return lsect;
1347 }
1348
1349 \f
1350 /* If we have a non-zero sized .sbss2 or .PPC.EMB.sbss0 sections, we need to bump up
1351 the number of section headers. */
1352
1353 static int
1354 ppc_elf_additional_program_headers (abfd)
1355 bfd *abfd;
1356 {
1357 asection *s;
1358 int ret;
1359
1360 ret = 0;
1361
1362 s = bfd_get_section_by_name (abfd, ".interp");
1363 if (s != NULL)
1364 ++ret;
1365
1366 s = bfd_get_section_by_name (abfd, ".sbss2");
1367 if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0)
1368 ++ret;
1369
1370 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
1371 if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0)
1372 ++ret;
1373
1374 return ret;
1375 }
1376
1377 /* Modify the segment map if needed */
1378
1379 static boolean
1380 ppc_elf_modify_segment_map (abfd)
1381 bfd *abfd;
1382 {
1383 return true;
1384 }
1385 \f
1386 /* Adjust a symbol defined by a dynamic object and referenced by a
1387 regular object. The current definition is in some section of the
1388 dynamic object, but we're not including those sections. We have to
1389 change the definition to something the rest of the link can
1390 understand. */
1391
1392 static boolean
1393 ppc_elf_adjust_dynamic_symbol (info, h)
1394 struct bfd_link_info *info;
1395 struct elf_link_hash_entry *h;
1396 {
1397 bfd *dynobj = elf_hash_table (info)->dynobj;
1398 asection *s;
1399 unsigned int power_of_two;
1400 bfd_vma plt_offset;
1401
1402 #ifdef DEBUG
1403 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", h->root.root.string);
1404 #endif
1405
1406 /* Make sure we know what is going on here. */
1407 BFD_ASSERT (dynobj != NULL
1408 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
1409 || h->weakdef != NULL
1410 || ((h->elf_link_hash_flags
1411 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
1412 && (h->elf_link_hash_flags
1413 & ELF_LINK_HASH_REF_REGULAR) != 0
1414 && (h->elf_link_hash_flags
1415 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
1416
1417
1418 /* If this is a function, put it in the procedure linkage table. We
1419 will fill in the contents of the procedure linkage table later,
1420 when we know the address of the .got section. */
1421 if (h->type == STT_FUNC
1422 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
1423 {
1424 if (! info->shared
1425 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
1426 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
1427 {
1428 /* This case can occur if we saw a PLT32 reloc in an input
1429 file, but the symbol was never referred to by a dynamic
1430 object. In such a case, we don't actually need to build
1431 a procedure linkage table, and we can just do a PC32
1432 reloc instead. */
1433 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
1434 return true;
1435 }
1436
1437 /* Make sure this symbol is output as a dynamic symbol. */
1438 if (h->dynindx == -1)
1439 {
1440 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
1441 return false;
1442 }
1443
1444 s = bfd_get_section_by_name (dynobj, ".plt");
1445 BFD_ASSERT (s != NULL);
1446
1447 /* If this is the first .plt entry, make room for the special
1448 first entry. */
1449 if (s->_raw_size == 0)
1450 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
1451
1452 /* The PowerPC PLT is actually composed of two parts, the first part
1453 is 2 words (for a load and a jump), and then there is a remaining
1454 word available at the end. */
1455 plt_offset = (PLT_INITIAL_ENTRY_SIZE
1456 + 8 * ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE));
1457
1458 /* If this symbol is not defined in a regular file, and we are
1459 not generating a shared library, then set the symbol to this
1460 location in the .plt. This is required to make function
1461 pointers compare as equal between the normal executable and
1462 the shared library. */
1463 if (! info->shared
1464 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1465 {
1466 h->root.u.def.section = s;
1467 h->root.u.def.value = plt_offset;
1468 }
1469
1470 h->plt_offset = plt_offset;
1471
1472 /* Make room for this entry. */
1473 s->_raw_size += PLT_ENTRY_SIZE;
1474
1475 #if 0
1476 /* We also need to make an entry in the .got.plt section, which
1477 will be placed in the .got section by the linker script. */
1478
1479 s = bfd_get_section_by_name (dynobj, ".got.plt");
1480 BFD_ASSERT (s != NULL);
1481 s->_raw_size += 4;
1482 #endif
1483
1484 /* We also need to make an entry in the .rela.plt section. */
1485
1486 s = bfd_get_section_by_name (dynobj, ".rela.plt");
1487 BFD_ASSERT (s != NULL);
1488 s->_raw_size += sizeof (Elf32_External_Rela);
1489
1490 return true;
1491 }
1492
1493 /* If this is a weak symbol, and there is a real definition, the
1494 processor independent code will have arranged for us to see the
1495 real definition first, and we can just use the same value. */
1496 if (h->weakdef != NULL)
1497 {
1498 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
1499 || h->weakdef->root.type == bfd_link_hash_defweak);
1500 h->root.u.def.section = h->weakdef->root.u.def.section;
1501 h->root.u.def.value = h->weakdef->root.u.def.value;
1502 return true;
1503 }
1504
1505 /* This is a reference to a symbol defined by a dynamic object which
1506 is not a function. */
1507
1508 /* If we are creating a shared library, we must presume that the
1509 only references to the symbol are via the global offset table.
1510 For such cases we need not do anything here; the relocations will
1511 be handled correctly by relocate_section. */
1512 if (info->shared)
1513 return true;
1514
1515 /* We must allocate the symbol in our .dynbss section, which will
1516 become part of the .bss section of the executable. There will be
1517 an entry for this symbol in the .dynsym section. The dynamic
1518 object will contain position independent code, so all references
1519 from the dynamic object to this symbol will go through the global
1520 offset table. The dynamic linker will use the .dynsym entry to
1521 determine the address it must put in the global offset table, so
1522 both the dynamic object and the regular object will refer to the
1523 same memory location for the variable. */
1524
1525 s = bfd_get_section_by_name (dynobj, ".dynbss");
1526 BFD_ASSERT (s != NULL);
1527
1528 /* If the symbol is currently defined in the .bss section of the
1529 dynamic object, then it is OK to simply initialize it to zero.
1530 If the symbol is in some other section, we must generate a
1531 R_PPC_COPY reloc to tell the dynamic linker to copy the initial
1532 value out of the dynamic object and into the runtime process
1533 image. We need to remember the offset into the .rela.bss section
1534 we are going to use. */
1535 if ((h->root.u.def.section->flags & SEC_LOAD) != 0)
1536 {
1537 asection *srel;
1538
1539 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
1540 BFD_ASSERT (srel != NULL);
1541 srel->_raw_size += sizeof (Elf32_External_Rel);
1542 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
1543 }
1544
1545 /* We need to figure out the alignment required for this symbol. I
1546 have no idea how ELF linkers handle this. */
1547 power_of_two = bfd_log2 (h->size);
1548 if (power_of_two > 3)
1549 power_of_two = 3;
1550
1551 /* Apply the required alignment. */
1552 s->_raw_size = BFD_ALIGN (s->_raw_size,
1553 (bfd_size_type) (1 << power_of_two));
1554 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1555 {
1556 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
1557 return false;
1558 }
1559
1560 /* Define the symbol as being at this point in the section. */
1561 h->root.u.def.section = s;
1562 h->root.u.def.value = s->_raw_size;
1563
1564 /* Increment the section size to make room for the symbol. */
1565 s->_raw_size += h->size;
1566
1567 return true;
1568 }
1569
1570 \f
1571 /* Increment the index of a dynamic symbol by a given amount. Called
1572 via elf_link_hash_traverse. */
1573
1574 static boolean
1575 ppc_elf_adjust_dynindx (h, cparg)
1576 struct elf_link_hash_entry *h;
1577 PTR cparg;
1578 {
1579 int *cp = (int *) cparg;
1580
1581 #ifdef DEBUG
1582 fprintf (stderr, "ppc_elf_adjust_dynindx called, h->dynindx = %d, *cp = %d\n", h->dynindx, *cp);
1583 #endif
1584
1585 if (h->dynindx != -1)
1586 h->dynindx += *cp;
1587
1588 return true;
1589 }
1590
1591 \f
1592 /* Set the sizes of the dynamic sections. */
1593
1594 static boolean
1595 ppc_elf_size_dynamic_sections (output_bfd, info)
1596 bfd *output_bfd;
1597 struct bfd_link_info *info;
1598 {
1599 bfd *dynobj;
1600 asection *s;
1601 boolean plt;
1602 boolean relocs;
1603 boolean reltext;
1604
1605 #ifdef DEBUG
1606 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
1607 #endif
1608
1609 dynobj = elf_hash_table (info)->dynobj;
1610 BFD_ASSERT (dynobj != NULL);
1611
1612 if (elf_hash_table (info)->dynamic_sections_created)
1613 {
1614 /* Set the contents of the .interp section to the interpreter. */
1615 if (! info->shared)
1616 {
1617 s = bfd_get_section_by_name (dynobj, ".interp");
1618 BFD_ASSERT (s != NULL);
1619 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
1620 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1621 }
1622 }
1623 else
1624 {
1625 /* We may have created entries in the .rela.got, .rela.sdata, and
1626 .rela.sdata2 sections. However, if we are not creating the
1627 dynamic sections, we will not actually use these entries. Reset
1628 the size of .rela.got, et al, which will cause it to get
1629 stripped from the output file below. */
1630 static char *rela_sections[] = { ".rela.got", ".rela.sdata", ".rela.sdata", (char *)0 };
1631 char **p;
1632
1633 for (p = rela_sections; *p != (char *)0; p++)
1634 {
1635 s = bfd_get_section_by_name (dynobj, *p);
1636 if (s != NULL)
1637 s->_raw_size = 0;
1638 }
1639 }
1640
1641 /* The check_relocs and adjust_dynamic_symbol entry points have
1642 determined the sizes of the various dynamic sections. Allocate
1643 memory for them. */
1644 plt = false;
1645 relocs = false;
1646 reltext = false;
1647 for (s = dynobj->sections; s != NULL; s = s->next)
1648 {
1649 const char *name;
1650 boolean strip;
1651
1652 if ((s->flags & SEC_LINKER_CREATED) == 0)
1653 continue;
1654
1655 /* It's OK to base decisions on the section name, because none
1656 of the dynobj section names depend upon the input files. */
1657 name = bfd_get_section_name (dynobj, s);
1658
1659 strip = false;
1660
1661 if (strcmp (name, ".plt") == 0)
1662 {
1663 if (s->_raw_size == 0)
1664 {
1665 /* Strip this section if we don't need it; see the
1666 comment below. */
1667 strip = true;
1668 }
1669 else
1670 {
1671 /* Remember whether there is a PLT. */
1672 plt = true;
1673 }
1674 }
1675 else if (strncmp (name, ".rela", 5) == 0)
1676 {
1677 if (s->_raw_size == 0)
1678 {
1679 /* If we don't need this section, strip it from the
1680 output file. This is mostly to handle .rela.bss and
1681 .rela.plt. We must create both sections in
1682 create_dynamic_sections, because they must be created
1683 before the linker maps input sections to output
1684 sections. The linker does that before
1685 adjust_dynamic_symbol is called, and it is that
1686 function which decides whether anything needs to go
1687 into these sections. */
1688 strip = true;
1689 }
1690 else
1691 {
1692 asection *target;
1693
1694 /* Remember whether there are any reloc sections other
1695 than .rel.plt. */
1696 if (strcmp (name, ".rela.plt") != 0)
1697 {
1698 const char *outname;
1699
1700 relocs = true;
1701
1702 /* If this relocation section applies to a read only
1703 section, then we probably need a DT_TEXTREL
1704 entry. The entries in the .rel.plt section
1705 really apply to the .got section, which we
1706 created ourselves and so know is not readonly. */
1707 outname = bfd_get_section_name (output_bfd,
1708 s->output_section);
1709 target = bfd_get_section_by_name (output_bfd, outname + 4);
1710 if (target != NULL
1711 && (target->flags & SEC_READONLY) != 0)
1712 reltext = true;
1713 }
1714
1715 /* We use the reloc_count field as a counter if we need
1716 to copy relocs into the output file. */
1717 s->reloc_count = 0;
1718 }
1719 }
1720 else if (strcmp (name, ".got") != 0
1721 && strcmp (name, ".sdata") != 0
1722 && strcmp (name, ".sdata2") != 0)
1723 {
1724 /* It's not one of our sections, so don't allocate space. */
1725 continue;
1726 }
1727
1728 if (strip)
1729 {
1730 asection **spp;
1731
1732 for (spp = &s->output_section->owner->sections;
1733 *spp != s->output_section;
1734 spp = &(*spp)->next)
1735 ;
1736 *spp = s->output_section->next;
1737 --s->output_section->owner->section_count;
1738
1739 continue;
1740 }
1741
1742 /* Allocate memory for the section contents. */
1743 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
1744 if (s->contents == NULL && s->_raw_size != 0)
1745 return false;
1746 }
1747
1748 if (elf_hash_table (info)->dynamic_sections_created)
1749 {
1750 /* Add some entries to the .dynamic section. We fill in the
1751 values later, in ppc_elf_finish_dynamic_sections, but we
1752 must add the entries now so that we get the correct size for
1753 the .dynamic section. The DT_DEBUG entry is filled in by the
1754 dynamic linker and used by the debugger. */
1755 if (! info->shared)
1756 {
1757 if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
1758 return false;
1759 }
1760
1761 if (plt)
1762 {
1763 if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)
1764 || ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
1765 || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_REL)
1766 || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
1767 return false;
1768 }
1769
1770 if (relocs)
1771 {
1772 if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
1773 || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, DT_RELA)
1774 || ! bfd_elf32_add_dynamic_entry (info, DT_RELENT,
1775 sizeof (Elf32_External_Rela)))
1776 return false;
1777 }
1778
1779 if (reltext)
1780 {
1781 if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
1782 return false;
1783 }
1784 }
1785
1786 /* If we are generating a shared library, we generate a section
1787 symbol for each output section. These are local symbols, which
1788 means that they must come first in the dynamic symbol table.
1789 That means we must increment the dynamic symbol index of every
1790 other dynamic symbol. */
1791 if (info->shared)
1792 {
1793 int c, i;
1794
1795 c = bfd_count_sections (output_bfd);
1796 elf_link_hash_traverse (elf_hash_table (info),
1797 ppc_elf_adjust_dynindx,
1798 (PTR) &c);
1799 elf_hash_table (info)->dynsymcount += c;
1800
1801 for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++)
1802 {
1803 elf_section_data (s)->dynindx = i;
1804 /* These symbols will have no names, so we don't need to
1805 fiddle with dynstr_index. */
1806 }
1807 }
1808
1809 return true;
1810 }
1811
1812 \f
1813 /* Look through the relocs for a section during the first phase, and
1814 allocate space in the global offset table or procedure linkage
1815 table. */
1816
1817 static boolean
1818 ppc_elf_check_relocs (abfd, info, sec, relocs)
1819 bfd *abfd;
1820 struct bfd_link_info *info;
1821 asection *sec;
1822 const Elf_Internal_Rela *relocs;
1823 {
1824 boolean ret = true;
1825 bfd *dynobj;
1826 Elf_Internal_Shdr *symtab_hdr;
1827 struct elf_link_hash_entry **sym_hashes;
1828 const Elf_Internal_Rela *rel;
1829 const Elf_Internal_Rela *rel_end;
1830 bfd_vma *local_got_offsets;
1831 elf_linker_section_t *got;
1832 elf_linker_section_t *plt;
1833 elf_linker_section_t *sdata;
1834 elf_linker_section_t *sdata2;
1835 asection *sreloc;
1836
1837 if (info->relocateable)
1838 return true;
1839
1840 #ifdef DEBUG
1841 fprintf (stderr, "ppc_elf_check_relocs called for section %s in %s\n",
1842 bfd_get_section_name (abfd, sec),
1843 bfd_get_filename (abfd));
1844 #endif
1845
1846 /* Create the linker generated sections all the time so that the special
1847 symbols are created. */
1848 if ((got = elf_linker_section (abfd, LINKER_SECTION_GOT)) == NULL)
1849 {
1850 got = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_GOT);
1851 if (!got)
1852 ret = false;
1853 }
1854
1855 #if 0
1856 if ((plt = elf_linker_section (abfd, LINKER_SECTION_PLT)) == NULL)
1857 {
1858 plt = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_PLT);
1859 if (!plt)
1860 ret = false;
1861 }
1862 #endif
1863
1864 if ((sdata = elf_linker_section (abfd, LINKER_SECTION_SDATA)) == NULL)
1865 {
1866 sdata = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA);
1867 if (!sdata)
1868 ret = false;
1869 }
1870
1871
1872 if ((sdata2 = elf_linker_section (abfd, LINKER_SECTION_SDATA2)) == NULL)
1873 {
1874 sdata2 = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA2);
1875 if (!sdata2)
1876 ret = false;
1877 }
1878
1879 dynobj = elf_hash_table (info)->dynobj;
1880 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1881 sym_hashes = elf_sym_hashes (abfd);
1882 local_got_offsets = elf_local_got_offsets (abfd);
1883
1884 sreloc = NULL;
1885
1886 rel_end = relocs + sec->reloc_count;
1887 for (rel = relocs; rel < rel_end; rel++)
1888 {
1889 unsigned long r_symndx;
1890 struct elf_link_hash_entry *h;
1891
1892 r_symndx = ELF32_R_SYM (rel->r_info);
1893 if (r_symndx < symtab_hdr->sh_info)
1894 h = NULL;
1895 else
1896 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1897
1898 switch (ELF32_R_TYPE (rel->r_info))
1899 {
1900 /* GOT16 relocations */
1901 case R_PPC_GOT16:
1902 case R_PPC_GOT16_LO:
1903 case R_PPC_GOT16_HI:
1904 case R_PPC_GOT16_HA:
1905 if (got->rel_section == NULL
1906 && (h != NULL || info->shared)
1907 && !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
1908 {
1909 ret = false;
1910 break;
1911 }
1912
1913 if (!bfd_elf32_create_pointer_linker_section (abfd, info, got, h, rel))
1914 ret = false;
1915
1916 break;
1917
1918 /* Indirect .sdata relocation */
1919 case R_PPC_EMB_SDAI16:
1920 if (info->shared)
1921 {
1922 (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
1923 bfd_get_filename (abfd),
1924 "R_PPC_EMB_SDAI16");
1925 ret = false;
1926 break;
1927 }
1928
1929 if (got->rel_section == NULL
1930 && (h != NULL || info->shared)
1931 && !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
1932 {
1933 ret = false;
1934 break;
1935 }
1936
1937 if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata, h, rel))
1938 ret = false;
1939
1940 break;
1941
1942 /* Indirect .sdata2 relocation */
1943 case R_PPC_EMB_SDA2I16:
1944 if (info->shared)
1945 {
1946 (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
1947 bfd_get_filename (abfd),
1948 "R_PPC_EMB_SDA2I16");
1949 ret = false;
1950 break;
1951 }
1952
1953 if (got->rel_section == NULL
1954 && (h != NULL || info->shared)
1955 && !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
1956 return false;
1957
1958 if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata2, h, rel))
1959 return false;
1960
1961 break;
1962
1963 case R_PPC_SDAREL16:
1964 case R_PPC_EMB_SDA2REL:
1965 case R_PPC_EMB_SDA21:
1966 if (info->shared)
1967 {
1968 (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
1969 bfd_get_filename (abfd),
1970 ppc_elf_howto_table[(int)ELF32_R_TYPE (rel->r_info)]->name);
1971 ret = false;
1972 }
1973 break;
1974
1975 case R_PPC_PLT32:
1976 case R_PPC_PLTREL24:
1977 case R_PPC_PLT16_LO:
1978 case R_PPC_PLT16_HI:
1979 case R_PPC_PLT16_HA:
1980 #ifdef DEBUG
1981 fprintf (stderr, "Reloc requires a PLT entry\n");
1982 #endif
1983 /* This symbol requires a procedure linkage table entry. We
1984 actually build the entry in adjust_dynamic_symbol,
1985 because this might be a case of linking PIC code without
1986 linking in any dynamic objects, in which case we don't
1987 need to generate a procedure linkage table after all. */
1988
1989 if (h == NULL)
1990 {
1991 /* It does not make sense to have a procedure linkage
1992 table entry for a local symbol. */
1993 bfd_set_error (bfd_error_bad_value);
1994 ret = false;
1995 break;
1996 }
1997
1998 /* Make sure this symbol is output as a dynamic symbol. */
1999 if (h->dynindx == -1)
2000 {
2001 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
2002 {
2003 ret = false;
2004 break;
2005 }
2006 }
2007
2008 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2009 break;
2010
2011 /* the following relocations don't need to propigate the relocation if
2012 linking a shared object since they are section relative. */
2013 case R_PPC_SECTOFF:
2014 case R_PPC_SECTOFF_LO:
2015 case R_PPC_SECTOFF_HI:
2016 case R_PPC_SECTOFF_HA:
2017 break;
2018
2019 /* This refers only to functions defined in the shared library */
2020 case R_PPC_LOCAL24PC:
2021 break;
2022
2023 /* When creating a shared object, we must copy these
2024 relocs into the output file. We create a reloc
2025 section in dynobj and make room for the reloc. */
2026 case R_PPC_REL24:
2027 if (h != NULL
2028 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2029 break;
2030 /* fall through */
2031
2032 case R_PPC_REL14:
2033 case R_PPC_REL14_BRTAKEN:
2034 case R_PPC_REL14_BRNTAKEN:
2035 if (h == NULL)
2036 break;
2037 /* fall through */
2038
2039 default:
2040 if (info->shared
2041 && (sec->flags & SEC_ALLOC) != 0)
2042 {
2043 #ifdef DEBUG
2044 fprintf (stderr, "ppc_elf_check_relocs need to create relocation for %s\n",
2045 (h && h->root.root.string) ? h->root.root.string : "<unknown>");
2046 #endif
2047 if (sreloc == NULL)
2048 {
2049 const char *name;
2050
2051 name = (bfd_elf_string_from_elf_section
2052 (abfd,
2053 elf_elfheader (abfd)->e_shstrndx,
2054 elf_section_data (sec)->rel_hdr.sh_name));
2055 if (name == NULL)
2056 {
2057 ret = false;
2058 break;
2059 }
2060
2061 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2062 && strcmp (bfd_get_section_name (abfd, sec),
2063 name + 5) == 0);
2064
2065 sreloc = bfd_get_section_by_name (dynobj, name);
2066 if (sreloc == NULL)
2067 {
2068 sreloc = bfd_make_section (dynobj, name);
2069 if (sreloc == NULL
2070 || ! bfd_set_section_flags (dynobj, sreloc,
2071 (SEC_ALLOC
2072 | SEC_LOAD
2073 | SEC_HAS_CONTENTS
2074 | SEC_IN_MEMORY
2075 | SEC_LINKER_CREATED
2076 | SEC_READONLY))
2077 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
2078 {
2079 ret = false;
2080 break;
2081 }
2082 }
2083 }
2084
2085 sreloc->_raw_size += sizeof (Elf32_External_Rela);
2086 }
2087
2088 break;
2089 }
2090 }
2091
2092 return ret;
2093 }
2094
2095 \f
2096 /* Hook called by the linker routine which adds symbols from an object
2097 file. We use it to put .comm items in .sbss, and not .bss. */
2098
2099 /*ARGSUSED*/
2100 static boolean
2101 ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
2102 bfd *abfd;
2103 struct bfd_link_info *info;
2104 const Elf_Internal_Sym *sym;
2105 const char **namep;
2106 flagword *flagsp;
2107 asection **secp;
2108 bfd_vma *valp;
2109 {
2110 if (sym->st_shndx == SHN_COMMON && !info->relocateable && sym->st_size <= bfd_get_gp_size (abfd))
2111 {
2112 /* Common symbols less than or equal to -G nn bytes are automatically
2113 put into .sdata. */
2114 elf_linker_section_t *sdata = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA);
2115 if (!sdata->bss_section)
2116 {
2117 /* We don't go through bfd_make_section, because we don't
2118 want to attach this common section to DYNOBJ. The linker
2119 will move the symbols to the appropriate output section
2120 when it defines common symbols. */
2121 sdata->bss_section = ((asection *)
2122 bfd_zalloc (abfd, sizeof (asection)));
2123 if (sdata->bss_section == NULL)
2124 return false;
2125 sdata->bss_section->name = sdata->bss_name;
2126 sdata->bss_section->flags = SEC_IS_COMMON;
2127 sdata->bss_section->output_section = sdata->bss_section;
2128 sdata->bss_section->symbol =
2129 (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
2130 sdata->bss_section->symbol_ptr_ptr =
2131 (asymbol **) bfd_zalloc (abfd, sizeof (asymbol *));
2132 if (sdata->bss_section->symbol == NULL
2133 || sdata->bss_section->symbol_ptr_ptr == NULL)
2134 return false;
2135 sdata->bss_section->symbol->name = sdata->bss_name;
2136 sdata->bss_section->symbol->flags = BSF_SECTION_SYM;
2137 sdata->bss_section->symbol->section = sdata->bss_section;
2138 *sdata->bss_section->symbol_ptr_ptr = sdata->bss_section->symbol;
2139 }
2140
2141 *secp = sdata->bss_section;
2142 *valp = sym->st_size;
2143 }
2144
2145 return true;
2146 }
2147
2148 \f
2149 /* Finish up dynamic symbol handling. We set the contents of various
2150 dynamic sections here. */
2151
2152 static boolean
2153 ppc_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
2154 bfd *output_bfd;
2155 struct bfd_link_info *info;
2156 struct elf_link_hash_entry *h;
2157 Elf_Internal_Sym *sym;
2158 {
2159 bfd *dynobj;
2160
2161 #ifdef DEBUG
2162 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", h->root.root.string);
2163 #endif
2164
2165 dynobj = elf_hash_table (info)->dynobj;
2166 BFD_ASSERT (dynobj != NULL);
2167
2168 if (h->plt_offset != (bfd_vma) -1)
2169 {
2170 asection *splt;
2171 asection *srela;
2172 Elf_Internal_Rela rela;
2173
2174 #ifdef DEBUG
2175 fprintf (stderr, ", plt_offset = %d", h->plt_offset);
2176 #endif
2177
2178 /* This symbol has an entry in the procedure linkage table. Set
2179 it up. */
2180
2181 BFD_ASSERT (h->dynindx != -1);
2182
2183 splt = bfd_get_section_by_name (dynobj, ".plt");
2184 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
2185 BFD_ASSERT (splt != NULL && srela != NULL);
2186
2187 /* We don't need to fill in the .plt. The solaris dynamic linker will
2188 fill it in. */
2189
2190 /* Fill in the entry in the .rela.plt section. */
2191 rela.r_offset = (splt->output_section->vma
2192 + splt->output_offset
2193 + h->plt_offset);
2194 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
2195 rela.r_addend = 0;
2196 bfd_elf32_swap_reloca_out (output_bfd, &rela,
2197 ((Elf32_External_Rela *) srela->contents
2198 + ((h->plt_offset - PLT_INITIAL_ENTRY_SIZE) / 8)));
2199
2200 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
2201 {
2202 /* Mark the symbol as undefined, rather than as defined in
2203 the .plt section. Leave the value alone. */
2204 sym->st_shndx = SHN_UNDEF;
2205 }
2206 }
2207
2208 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
2209 {
2210 asection *s;
2211 Elf_Internal_Rela rela;
2212
2213 /* This symbols needs a copy reloc. Set it up. */
2214
2215 #ifdef DEBUG
2216 fprintf (stderr, ", copy");
2217 #endif
2218
2219 BFD_ASSERT (h->dynindx != -1);
2220
2221 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2222 ".rela.bss");
2223 BFD_ASSERT (s != NULL);
2224
2225 rela.r_offset = (h->root.u.def.value
2226 + h->root.u.def.section->output_section->vma
2227 + h->root.u.def.section->output_offset);
2228 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
2229 rela.r_addend = 0;
2230 bfd_elf32_swap_reloca_out (output_bfd, &rela,
2231 ((Elf32_External_Rela *) s->contents
2232 + s->reloc_count));
2233 ++s->reloc_count;
2234 }
2235
2236 #ifdef DEBUG
2237 fprintf (stderr, "\n");
2238 #endif
2239
2240 /* Mark some specially defined symbols as absolute. */
2241 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2242 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
2243 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
2244 sym->st_shndx = SHN_ABS;
2245
2246 return true;
2247 }
2248
2249 \f
2250 /* Finish up the dynamic sections. */
2251
2252 static boolean
2253 ppc_elf_finish_dynamic_sections (output_bfd, info)
2254 bfd *output_bfd;
2255 struct bfd_link_info *info;
2256 {
2257 asection *sdyn;
2258 bfd *dynobj = elf_hash_table (info)->dynobj;
2259 elf_linker_section_t *got = elf_linker_section (dynobj, LINKER_SECTION_GOT);
2260
2261 #ifdef DEBUG
2262 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
2263 #endif
2264
2265 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2266
2267 if (elf_hash_table (info)->dynamic_sections_created)
2268 {
2269 asection *splt;
2270 Elf32_External_Dyn *dyncon, *dynconend;
2271
2272 splt = bfd_get_section_by_name (dynobj, ".plt");
2273 BFD_ASSERT (splt != NULL && sdyn != NULL);
2274
2275 dyncon = (Elf32_External_Dyn *) sdyn->contents;
2276 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
2277 for (; dyncon < dynconend; dyncon++)
2278 {
2279 Elf_Internal_Dyn dyn;
2280 const char *name;
2281 boolean size;
2282
2283 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2284
2285 switch (dyn.d_tag)
2286 {
2287 case DT_PLTGOT: name = ".plt"; size = false; break;
2288 case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
2289 case DT_JMPREL: name = ".rela.plt"; size = false; break;
2290 default: name = NULL; size = false; break;
2291 }
2292
2293 if (name != NULL)
2294 {
2295 asection *s;
2296
2297 s = bfd_get_section_by_name (output_bfd, name);
2298 if (s == NULL)
2299 dyn.d_un.d_val = 0;
2300 else
2301 {
2302 if (! size)
2303 dyn.d_un.d_ptr = s->vma;
2304 else
2305 {
2306 if (s->_cooked_size != 0)
2307 dyn.d_un.d_val = s->_cooked_size;
2308 else
2309 dyn.d_un.d_val = s->_raw_size;
2310 }
2311 }
2312 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2313 }
2314 }
2315 }
2316
2317 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
2318 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
2319 if (got)
2320 {
2321 unsigned char *contents = got->section->contents + got->hole_offset;
2322 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, contents);
2323
2324 if (sdyn == NULL)
2325 bfd_put_32 (output_bfd, (bfd_vma) 0, contents+4);
2326 else
2327 bfd_put_32 (output_bfd,
2328 sdyn->output_section->vma + sdyn->output_offset,
2329 contents+4);
2330
2331 elf_section_data (got->section->output_section)->this_hdr.sh_entsize = 4;
2332 }
2333
2334 if (info->shared)
2335 {
2336 asection *sdynsym;
2337 asection *s;
2338 Elf_Internal_Sym sym;
2339
2340 /* Set up the section symbols for the output sections. */
2341
2342 sdynsym = bfd_get_section_by_name (dynobj, ".dynsym");
2343 BFD_ASSERT (sdynsym != NULL);
2344
2345 sym.st_size = 0;
2346 sym.st_name = 0;
2347 sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
2348 sym.st_other = 0;
2349
2350 for (s = output_bfd->sections; s != NULL; s = s->next)
2351 {
2352 int indx;
2353
2354 sym.st_value = s->vma;
2355
2356 indx = elf_section_data (s)->this_idx;
2357 BFD_ASSERT (indx > 0);
2358 sym.st_shndx = indx;
2359
2360 bfd_elf32_swap_symbol_out (output_bfd, &sym,
2361 (PTR) (((Elf32_External_Sym *)
2362 sdynsym->contents)
2363 + elf_section_data (s)->dynindx));
2364 }
2365
2366 /* Set the sh_info field of the output .dynsym section to the
2367 index of the first global symbol. */
2368 elf_section_data (sdynsym->output_section)->this_hdr.sh_info =
2369 bfd_count_sections (output_bfd) + 1;
2370 }
2371
2372 return true;
2373 }
2374
2375 \f
2376 /* The RELOCATE_SECTION function is called by the ELF backend linker
2377 to handle the relocations for a section.
2378
2379 The relocs are always passed as Rela structures; if the section
2380 actually uses Rel structures, the r_addend field will always be
2381 zero.
2382
2383 This function is responsible for adjust the section contents as
2384 necessary, and (if using Rela relocs and generating a
2385 relocateable output file) adjusting the reloc addend as
2386 necessary.
2387
2388 This function does not have to worry about setting the reloc
2389 address or the reloc symbol index.
2390
2391 LOCAL_SYMS is a pointer to the swapped in local symbols.
2392
2393 LOCAL_SECTIONS is an array giving the section in the input file
2394 corresponding to the st_shndx field of each local symbol.
2395
2396 The global hash table entry for the global symbols can be found
2397 via elf_sym_hashes (input_bfd).
2398
2399 When generating relocateable output, this function must handle
2400 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2401 going to be the section symbol corresponding to the output
2402 section, which means that the addend must be adjusted
2403 accordingly. */
2404
2405 static boolean
2406 ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
2407 contents, relocs, local_syms, local_sections)
2408 bfd *output_bfd;
2409 struct bfd_link_info *info;
2410 bfd *input_bfd;
2411 asection *input_section;
2412 bfd_byte *contents;
2413 Elf_Internal_Rela *relocs;
2414 Elf_Internal_Sym *local_syms;
2415 asection **local_sections;
2416 {
2417 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2418 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2419 bfd *dynobj = elf_hash_table (info)->dynobj;
2420 elf_linker_section_t *got = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_GOT) : NULL;
2421 elf_linker_section_t *sdata = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_SDATA) : NULL;
2422 elf_linker_section_t *sdata2 = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_SDATA2) : NULL;
2423 Elf_Internal_Rela *rel = relocs;
2424 Elf_Internal_Rela *relend = relocs + input_section->reloc_count;
2425 asection *sreloc = NULL;
2426 boolean ret = true;
2427 long insn;
2428
2429 #ifdef DEBUG
2430 fprintf (stderr, "ppc_elf_relocate_section called for %s section %s, %ld relocations%s\n",
2431 bfd_get_filename (input_bfd),
2432 bfd_section_name(input_bfd, input_section),
2433 (long)input_section->reloc_count,
2434 (info->relocateable) ? " (relocatable)" : "");
2435 #endif
2436
2437 if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
2438 ppc_elf_howto_init ();
2439
2440 for (; rel < relend; rel++)
2441 {
2442 enum ppc_reloc_type r_type = (enum ppc_reloc_type)ELF32_R_TYPE (rel->r_info);
2443 bfd_vma offset = rel->r_offset;
2444 bfd_vma addend = rel->r_addend;
2445 bfd_reloc_status_type r = bfd_reloc_other;
2446 Elf_Internal_Sym *sym = (Elf_Internal_Sym *)0;
2447 asection *sec = (asection *)0;
2448 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *)0;
2449 const char *sym_name = (const char *)0;
2450 reloc_howto_type *howto;
2451 unsigned long r_symndx;
2452 bfd_vma relocation;
2453
2454 /* Unknown relocation handling */
2455 if ((unsigned)r_type >= (unsigned)R_PPC_max || !ppc_elf_howto_table[(int)r_type])
2456 {
2457 (*_bfd_error_handler) ("%s: unknown relocation type %d",
2458 bfd_get_filename (input_bfd),
2459 (int)r_type);
2460
2461 bfd_set_error (bfd_error_bad_value);
2462 ret = false;
2463 continue;
2464 }
2465
2466 howto = ppc_elf_howto_table[(int)r_type];
2467 r_symndx = ELF32_R_SYM (rel->r_info);
2468
2469 if (info->relocateable)
2470 {
2471 /* This is a relocateable link. We don't have to change
2472 anything, unless the reloc is against a section symbol,
2473 in which case we have to adjust according to where the
2474 section symbol winds up in the output section. */
2475 if (r_symndx < symtab_hdr->sh_info)
2476 {
2477 sym = local_syms + r_symndx;
2478 if ((unsigned)ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2479 {
2480 sec = local_sections[r_symndx];
2481 addend = rel->r_addend += sec->output_offset + sym->st_value;
2482 }
2483 }
2484
2485 #ifdef DEBUG
2486 fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",
2487 howto->name,
2488 (int)r_type,
2489 r_symndx,
2490 (long)offset,
2491 (long)addend);
2492 #endif
2493 continue;
2494 }
2495
2496 /* This is a final link. */
2497 if (r_symndx < symtab_hdr->sh_info)
2498 {
2499 sym = local_syms + r_symndx;
2500 sec = local_sections[r_symndx];
2501 sym_name = "<local symbol>";
2502
2503 relocation = (sec->output_section->vma
2504 + sec->output_offset
2505 + sym->st_value);
2506 }
2507 else
2508 {
2509 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2510 while (h->root.type == bfd_link_hash_indirect
2511 || h->root.type == bfd_link_hash_warning)
2512 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2513 sym_name = h->root.root.string;
2514 if (h->root.type == bfd_link_hash_defined
2515 || h->root.type == bfd_link_hash_defweak)
2516 {
2517 sec = h->root.u.def.section;
2518 if ((r_type == R_PPC_PLT32
2519 && h->plt_offset != (bfd_vma) -1)
2520 || ((r_type == R_PPC_GOT16
2521 || r_type == R_PPC_GOT16_LO
2522 || r_type == R_PPC_GOT16_HI
2523 || r_type == R_PPC_GOT16_HA)
2524 && elf_hash_table (info)->dynamic_sections_created
2525 && (! info->shared
2526 || ! info->symbolic
2527 || (h->elf_link_hash_flags
2528 & ELF_LINK_HASH_DEF_REGULAR) == 0))
2529 || (info->shared
2530 && (! info->symbolic
2531 || (h->elf_link_hash_flags
2532 & ELF_LINK_HASH_DEF_REGULAR) == 0)
2533 && (input_section->flags & SEC_ALLOC) != 0
2534 && (r_type == R_PPC_ADDR32
2535 || r_type == R_PPC_ADDR24
2536 || r_type == R_PPC_ADDR16
2537 || r_type == R_PPC_ADDR16_LO
2538 || r_type == R_PPC_ADDR16_HI
2539 || r_type == R_PPC_ADDR16_HA
2540 || r_type == R_PPC_ADDR14
2541 || r_type == R_PPC_ADDR14_BRTAKEN
2542 || r_type == R_PPC_ADDR14_BRNTAKEN
2543 || r_type == R_PPC_PLTREL24
2544 || r_type == R_PPC_COPY
2545 || r_type == R_PPC_GLOB_DAT
2546 || r_type == R_PPC_JMP_SLOT
2547 || r_type == R_PPC_UADDR32
2548 || r_type == R_PPC_UADDR16
2549 || r_type == R_PPC_REL32
2550 || r_type == R_PPC_SDAREL16
2551 || r_type == R_PPC_EMB_NADDR32
2552 || r_type == R_PPC_EMB_NADDR16
2553 || r_type == R_PPC_EMB_NADDR16_LO
2554 || r_type == R_PPC_EMB_NADDR16_HI
2555 || r_type == R_PPC_EMB_NADDR16_HA
2556 || r_type == R_PPC_EMB_SDAI16
2557 || r_type == R_PPC_EMB_SDA2I16
2558 || r_type == R_PPC_EMB_SDA2REL
2559 || r_type == R_PPC_EMB_SDA21
2560 || r_type == R_PPC_EMB_MRKREF
2561 || r_type == R_PPC_EMB_BIT_FLD
2562 || r_type == R_PPC_EMB_RELSDA
2563 || ((r_type == R_PPC_REL24
2564 || r_type == R_PPC_REL14
2565 || r_type == R_PPC_REL14_BRTAKEN
2566 || r_type == R_PPC_REL14_BRNTAKEN
2567 || r_type == R_PPC_RELATIVE)
2568 && strcmp (h->root.root.string,
2569 "_GLOBAL_OFFSET_TABLE_") != 0))))
2570 {
2571 /* In these cases, we don't need the relocation
2572 value. We check specially because in some
2573 obscure cases sec->output_section will be NULL. */
2574 relocation = 0;
2575 }
2576 else
2577 relocation = (h->root.u.def.value
2578 + sec->output_section->vma
2579 + sec->output_offset);
2580 }
2581 else if (h->root.type == bfd_link_hash_undefweak)
2582 relocation = 0;
2583 else if (info->shared)
2584 relocation = 0;
2585 else
2586 {
2587 (*info->callbacks->undefined_symbol)(info,
2588 h->root.root.string,
2589 input_bfd,
2590 input_section,
2591 rel->r_offset);
2592 ret = false;
2593 continue;
2594 }
2595 }
2596
2597 switch ((int)r_type)
2598 {
2599 default:
2600 (*_bfd_error_handler) ("%s: unknown relocation type %d for symbol %s",
2601 bfd_get_filename (input_bfd),
2602 (int)r_type, sym_name);
2603
2604 bfd_set_error (bfd_error_bad_value);
2605 ret = false;
2606 continue;
2607
2608 /* relocations that need no special processing */
2609 case (int)R_PPC_LOCAL24PC:
2610 break;
2611
2612 case (int)R_PPC_REL24:
2613 case (int)R_PPC_REL14:
2614 if (h != NULL
2615 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2616 break;
2617 /* fall through */
2618
2619 /* Relocations that need to be propigated if this is a shared object */
2620 case (int)R_PPC_NONE:
2621 case (int)R_PPC_ADDR32:
2622 case (int)R_PPC_ADDR24:
2623 case (int)R_PPC_ADDR16:
2624 case (int)R_PPC_ADDR16_LO:
2625 case (int)R_PPC_ADDR16_HI:
2626 case (int)R_PPC_ADDR14:
2627 case (int)R_PPC_UADDR32:
2628 case (int)R_PPC_UADDR16:
2629 case (int)R_PPC_REL32:
2630 case (int)R_PPC_PLTREL24:
2631 if (info->shared
2632 && (input_section->flags & SEC_ALLOC) != 0)
2633 {
2634 Elf_Internal_Rela outrel;
2635
2636 #ifdef DEBUG
2637 fprintf (stderr, "ppc_elf_relocate_section need to create relocation for %s\n",
2638 (h && h->root.root.string) ? h->root.root.string : "<unknown>");
2639 #endif
2640
2641 /* When generating a shared object, these relocations
2642 are copied into the output file to be resolved at run
2643 time. */
2644
2645 if (sreloc == NULL)
2646 {
2647 const char *name;
2648
2649 name = (bfd_elf_string_from_elf_section
2650 (input_bfd,
2651 elf_elfheader (input_bfd)->e_shstrndx,
2652 elf_section_data (input_section)->rel_hdr.sh_name));
2653 if (name == NULL)
2654 return false;
2655
2656 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2657 && strcmp (bfd_get_section_name (input_bfd,
2658 input_section),
2659 name + 5) == 0);
2660
2661 sreloc = bfd_get_section_by_name (dynobj, name);
2662 BFD_ASSERT (sreloc != NULL);
2663 }
2664
2665 outrel.r_offset = (rel->r_offset
2666 + input_section->output_section->vma
2667 + input_section->output_offset);
2668 if (h != NULL
2669 && (! info->symbolic
2670 || (h->elf_link_hash_flags
2671 & ELF_LINK_HASH_DEF_REGULAR) == 0))
2672 {
2673 BFD_ASSERT (h->dynindx != -1);
2674 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2675 outrel.r_addend = rel->r_addend;
2676 }
2677 else
2678 {
2679 if (r_type == R_PPC_ADDR32)
2680 {
2681 outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
2682 outrel.r_addend = relocation + rel->r_addend;
2683 }
2684 else
2685 {
2686 long indx;
2687
2688 if (h == NULL)
2689 sec = local_sections[r_symndx];
2690 else
2691 {
2692 BFD_ASSERT (h->root.type == bfd_link_hash_defined
2693 || (h->root.type
2694 == bfd_link_hash_defweak));
2695 sec = h->root.u.def.section;
2696 }
2697 if (sec != NULL && bfd_is_abs_section (sec))
2698 indx = 0;
2699 else if (sec == NULL || sec->owner == NULL)
2700 {
2701 bfd_set_error (bfd_error_bad_value);
2702 return false;
2703 }
2704 else
2705 {
2706 asection *osec;
2707
2708 osec = sec->output_section;
2709 indx = elf_section_data (osec)->dynindx;
2710 if (indx == 0)
2711 abort ();
2712 }
2713
2714 outrel.r_info = ELF32_R_INFO (indx, r_type);
2715 outrel.r_addend = relocation + rel->r_addend;
2716 }
2717 }
2718
2719 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
2720 (((Elf32_External_Rela *)
2721 sreloc->contents)
2722 + sreloc->reloc_count));
2723 ++sreloc->reloc_count;
2724
2725 /* This reloc will be computed at runtime, so there's no
2726 need to do anything now. */
2727 continue;
2728 }
2729 break;
2730
2731 /* branch taken prediction relocations */
2732 case (int)R_PPC_ADDR14_BRTAKEN:
2733 case (int)R_PPC_REL14_BRTAKEN:
2734 insn = bfd_get_32 (output_bfd, contents + offset);
2735 if ((relocation - offset) & 0x8000)
2736 insn &= ~BRANCH_PREDICT_BIT;
2737 else
2738 insn |= BRANCH_PREDICT_BIT;
2739 bfd_put_32 (output_bfd, insn, contents + offset);
2740 break;
2741
2742 /* branch not taken predicition relocations */
2743 case (int)R_PPC_ADDR14_BRNTAKEN:
2744 case (int)R_PPC_REL14_BRNTAKEN:
2745 insn = bfd_get_32 (output_bfd, contents + offset);
2746 if ((relocation - offset) & 0x8000)
2747 insn |= BRANCH_PREDICT_BIT;
2748 else
2749 insn &= ~BRANCH_PREDICT_BIT;
2750 bfd_put_32 (output_bfd, insn, contents + offset);
2751 break;
2752
2753 /* GOT16 relocations */
2754 case (int)R_PPC_GOT16:
2755 case (int)R_PPC_GOT16_LO:
2756 case (int)R_PPC_GOT16_HI:
2757 case (int)R_PPC_GOT16_HA:
2758 relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
2759 got, h, relocation, rel,
2760 R_PPC_RELATIVE);
2761 break;
2762
2763 /* Indirect .sdata relocation */
2764 case (int)R_PPC_EMB_SDAI16:
2765 BFD_ASSERT (sdata != NULL);
2766 relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
2767 sdata, h, relocation, rel,
2768 R_PPC_RELATIVE);
2769 break;
2770
2771 /* Indirect .sdata2 relocation */
2772 case (int)R_PPC_EMB_SDA2I16:
2773 BFD_ASSERT (sdata2 != NULL);
2774 relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
2775 sdata2, h, relocation, rel,
2776 R_PPC_RELATIVE);
2777 break;
2778
2779 /* Handle the TOC16 reloc. We want to use the offset within the .got
2780 section, not the actual VMA. This is appropriate when generating
2781 an embedded ELF object, for which the .got section acts like the
2782 AIX .toc section. */
2783 case (int)R_PPC_TOC16: /* phony GOT16 relocations */
2784 BFD_ASSERT (sec != (asection *)0);
2785 BFD_ASSERT (bfd_is_und_section (sec)
2786 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
2787 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0)
2788
2789 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
2790 break;
2791
2792 /* arithmetic adjust relocations */
2793 case (int)R_PPC_ADDR16_HA:
2794 BFD_ASSERT (sec != (asection *)0);
2795 addend += ((relocation + addend) & 0x8000) << 1;
2796 break;
2797
2798 /* relocate against _SDA_BASE_ */
2799 case (int)R_PPC_SDAREL16:
2800 BFD_ASSERT (sec != (asection *)0);
2801 if (strcmp (bfd_get_section_name (abfd, sec), ".sdata") != 0
2802 && strcmp (bfd_get_section_name (abfd, sec), ".sbss") != 0)
2803 {
2804 (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
2805 bfd_get_filename (input_bfd),
2806 sym_name,
2807 ppc_elf_howto_table[ (int)r_type ]->name,
2808 bfd_get_section_name (abfd, sec));
2809
2810 bfd_set_error (bfd_error_bad_value);
2811 ret = false;
2812 continue;
2813 }
2814 addend -= (sdata->sym_hash->root.u.def.value
2815 + sdata->sym_hash->root.u.def.section->output_section->vma
2816 + sdata->sym_hash->root.u.def.section->output_offset);
2817 break;
2818
2819
2820 /* relocate against _SDA2_BASE_ */
2821 case (int)R_PPC_EMB_SDA2REL:
2822 BFD_ASSERT (sec != (asection *)0);
2823 if (strcmp (bfd_get_section_name (abfd, sec), ".sdata2") != 0
2824 && strcmp (bfd_get_section_name (abfd, sec), ".sbss2") != 0)
2825 {
2826 (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
2827 bfd_get_filename (input_bfd),
2828 sym_name,
2829 ppc_elf_howto_table[ (int)r_type ]->name,
2830 bfd_get_section_name (abfd, sec));
2831
2832 bfd_set_error (bfd_error_bad_value);
2833 ret = false;
2834 continue;
2835 }
2836 addend -= (sdata2->sym_hash->root.u.def.value
2837 + sdata2->sym_hash->root.u.def.section->output_section->vma
2838 + sdata2->sym_hash->root.u.def.section->output_offset);
2839 break;
2840
2841
2842 /* relocate against either _SDA_BASE_, _SDA2_BASE_, or 0 */
2843 case (int)R_PPC_EMB_SDA21:
2844 case (int)R_PPC_EMB_RELSDA:
2845 {
2846 const char *name = bfd_get_section_name (abfd, sec);
2847 int reg;
2848
2849 BFD_ASSERT (sec != (asection *)0);
2850 if (strcmp (name, ".sdata") == 0 || strcmp (name, ".sbss") == 0)
2851 {
2852 reg = 13;
2853 addend -= (sdata->sym_hash->root.u.def.value
2854 + sdata->sym_hash->root.u.def.section->output_section->vma
2855 + sdata->sym_hash->root.u.def.section->output_offset);
2856 }
2857
2858 else if (strcmp (name, ".sdata2") == 0 || strcmp (name, ".sbss2") == 0)
2859 {
2860 reg = 2;
2861 addend -= (sdata2->sym_hash->root.u.def.value
2862 + sdata2->sym_hash->root.u.def.section->output_section->vma
2863 + sdata2->sym_hash->root.u.def.section->output_offset);
2864 }
2865
2866 else if (strcmp (name, ".PPC.EMB.sdata0") == 0 || strcmp (name, ".PPC.EMB.sbss0") == 0)
2867 {
2868 reg = 0;
2869 }
2870
2871 else
2872 {
2873 (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
2874 bfd_get_filename (input_bfd),
2875 sym_name,
2876 ppc_elf_howto_table[ (int)r_type ]->name,
2877 bfd_get_section_name (abfd, sec));
2878
2879 bfd_set_error (bfd_error_bad_value);
2880 ret = false;
2881 continue;
2882 }
2883
2884 if (r_type == R_PPC_EMB_SDA21)
2885 { /* fill in register field */
2886 insn = bfd_get_32 (output_bfd, contents + offset);
2887 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
2888 bfd_put_32 (output_bfd, insn, contents + offset);
2889 }
2890 }
2891 break;
2892
2893 /* Relocate against the beginning of the section */
2894 case (int)R_PPC_SECTOFF:
2895 case (int)R_PPC_SECTOFF_LO:
2896 case (int)R_PPC_SECTOFF_HI:
2897 BFD_ASSERT (sec != (asection *)0);
2898 addend -= sec->output_section->vma;
2899 break;
2900
2901 case (int)R_PPC_SECTOFF_HA:
2902 BFD_ASSERT (sec != (asection *)0);
2903 addend -= sec->output_section->vma;
2904 addend += ((relocation + addend) & 0x8000) << 1;
2905 break;
2906
2907 /* Negative relocations */
2908 case (int)R_PPC_EMB_NADDR32:
2909 case (int)R_PPC_EMB_NADDR16:
2910 case (int)R_PPC_EMB_NADDR16_LO:
2911 case (int)R_PPC_EMB_NADDR16_HI:
2912 addend -= 2*relocation;
2913 break;
2914
2915 case (int)R_PPC_EMB_NADDR16_HA:
2916 addend -= 2*relocation;
2917 addend += ((relocation + addend) & 0x8000) << 1;
2918 break;
2919
2920 /* NOP relocation that prevents garbage collecting linkers from omitting a
2921 reference. */
2922 case (int)R_PPC_EMB_MRKREF:
2923 continue;
2924
2925 case (int)R_PPC_COPY:
2926 case (int)R_PPC_GLOB_DAT:
2927 case (int)R_PPC_JMP_SLOT:
2928 case (int)R_PPC_RELATIVE:
2929 case (int)R_PPC_PLT32:
2930 case (int)R_PPC_PLTREL32:
2931 case (int)R_PPC_PLT16_LO:
2932 case (int)R_PPC_PLT16_HI:
2933 case (int)R_PPC_PLT16_HA:
2934 case (int)R_PPC_EMB_RELSEC16:
2935 case (int)R_PPC_EMB_RELST_LO:
2936 case (int)R_PPC_EMB_RELST_HI:
2937 case (int)R_PPC_EMB_RELST_HA:
2938 case (int)R_PPC_EMB_BIT_FLD:
2939 (*_bfd_error_handler) ("%s: Relocation %s is not yet supported for symbol %s.",
2940 bfd_get_filename (input_bfd),
2941 ppc_elf_howto_table[ (int)r_type ]->name,
2942 sym_name);
2943
2944 bfd_set_error (bfd_error_invalid_operation);
2945 ret = false;
2946 continue;
2947 }
2948
2949
2950 #ifdef DEBUG
2951 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, offset = %ld, addend = %ld\n",
2952 howto->name,
2953 (int)r_type,
2954 sym_name,
2955 r_symndx,
2956 (long)offset,
2957 (long)addend);
2958 #endif
2959
2960 r = _bfd_final_link_relocate (howto,
2961 input_bfd,
2962 input_section,
2963 contents,
2964 offset,
2965 relocation,
2966 addend);
2967
2968 if (r != bfd_reloc_ok)
2969 {
2970 ret = false;
2971 switch (r)
2972 {
2973 default:
2974 break;
2975
2976 case bfd_reloc_overflow:
2977 {
2978 const char *name;
2979
2980 if (h != NULL)
2981 name = h->root.root.string;
2982 else
2983 {
2984 name = bfd_elf_string_from_elf_section (input_bfd,
2985 symtab_hdr->sh_link,
2986 sym->st_name);
2987 if (name == NULL)
2988 break;
2989
2990 if (*name == '\0')
2991 name = bfd_section_name (input_bfd, sec);
2992 }
2993
2994 (*info->callbacks->reloc_overflow)(info,
2995 name,
2996 howto->name,
2997 (bfd_vma) 0,
2998 input_bfd,
2999 input_section,
3000 offset);
3001 }
3002 break;
3003
3004 }
3005 }
3006 }
3007
3008
3009 #ifdef DEBUG
3010 fprintf (stderr, "\n");
3011 #endif
3012
3013 return ret;
3014 }
3015
3016 \f
3017 #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
3018 #define TARGET_LITTLE_NAME "elf32-powerpcle"
3019 #define TARGET_BIG_SYM bfd_elf32_powerpc_vec
3020 #define TARGET_BIG_NAME "elf32-powerpc"
3021 #define ELF_ARCH bfd_arch_powerpc
3022 #define ELF_MACHINE_CODE EM_PPC
3023 #define ELF_MAXPAGESIZE 0x10000
3024 #define elf_info_to_howto ppc_elf_info_to_howto
3025
3026 #ifdef EM_CYGNUS_POWERPC
3027 #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
3028 #endif
3029
3030 #ifdef EM_PPC_OLD
3031 #define ELF_MACHINE_ALT2 EM_PPC_OLD
3032 #endif
3033
3034 #define bfd_elf32_bfd_copy_private_bfd_data ppc_elf_copy_private_bfd_data
3035 #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
3036 #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
3037 #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
3038 #define elf_backend_section_from_shdr ppc_elf_section_from_shdr
3039 #define elf_backend_relocate_section ppc_elf_relocate_section
3040 #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
3041 #define elf_backend_check_relocs ppc_elf_check_relocs
3042 #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
3043 #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
3044 #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
3045 #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
3046 #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
3047 #define elf_backend_fake_sections ppc_elf_fake_sections
3048 #define elf_backend_additional_program_headers ppc_elf_additional_program_headers
3049 #define elf_backend_modify_segment_map ppc_elf_modify_segment_map
3050
3051 #include "elf32-target.h"
GDB Binutils - Deliverables
This page took 0.094501 seconds and 4 git commands to generate.