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Do not put small common symbols into .sbss if ld -r
[deliverable/binutils-gdb.git] / bfd / elf32-ppc.c
CommitLineData
bcbe2c71 1/* PowerPC-specific support for 32-bit ELF
71897943 2 Copyright 1994, 1995, 1996 Free Software Foundation, Inc.
bcbe2c71
MM		 3 Written by Ian Lance Taylor, Cygnus Support.
4
5This file is part of BFD, the Binary File Descriptor library.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
dd82c578 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
bcbe2c71
MM		 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"
ede4eed4 28#include "bfdlink.h"
bcbe2c71 29#include "libbfd.h"
08556813 30#include "elf-bfd.h"
ede4eed4 31#include "elf/ppc.h"
bcbe2c71 32
08556813
MM		 33#define USE_RELA /* we want RELA relocations, not REL */
34
35/* PowerPC relocations defined by the ABIs */
36enum 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
ede4eed4 102static reloc_howto_type *ppc_elf_reloc_type_lookup
bcbe2c71 103 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
ede4eed4 104static void ppc_elf_info_to_howto
bcbe2c71 105 PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
ede4eed4
KR		 106static void ppc_elf_howto_init PARAMS ((void));
107static boolean ppc_elf_set_private_flags PARAMS ((bfd *, flagword));
108static boolean ppc_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
109static boolean ppc_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
110
3f7ca26b
MM		 111static int ppc_elf_additional_program_headers PARAMS ((bfd *));
112static boolean ppc_elf_modify_segment_map PARAMS ((bfd *));
113
83f4323e
MM		 114static boolean ppc_elf_section_from_shdr PARAMS ((bfd *,
115 Elf32_Internal_Shdr *,
116 char *));
117
3b3753b8
MM		 118static elf_linker_section_t *ppc_elf_create_linker_section
119 PARAMS ((bfd *abfd,
120 struct bfd_link_info *info,
121 enum elf_linker_section_enum));
1c3a295b 122
08556813
MM		 123static boolean ppc_elf_check_relocs PARAMS ((bfd *,
124 struct bfd_link_info *,
125 asection *,
126 const Elf_Internal_Rela *));
127
128static boolean ppc_elf_adjust_dynamic_symbol PARAMS ((struct bfd_link_info *,
129 struct elf_link_hash_entry *));
130
131static boolean ppc_elf_adjust_dynindx PARAMS ((struct elf_link_hash_entry *, PTR));
132
133static boolean ppc_elf_size_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *));
134
ede4eed4
KR		 135static boolean ppc_elf_relocate_section PARAMS ((bfd *,
136 struct bfd_link_info *info,
137 bfd *,
138 asection *,
139 bfd_byte *,
140 Elf_Internal_Rela *relocs,
141 Elf_Internal_Sym *local_syms,
142 asection **));
bcbe2c71 143
9d621c7d
MM		 144static boolean ppc_elf_add_symbol_hook PARAMS ((bfd *,
145 struct bfd_link_info *,
146 const Elf_Internal_Sym *,
147 const char **,
148 flagword *,
149 asection **,
150 bfd_vma *));
151
08556813
MM		 152static boolean ppc_elf_finish_dynamic_symbol PARAMS ((bfd *,
153 struct bfd_link_info *,
154 struct elf_link_hash_entry *,
155 Elf_Internal_Sym *));
bcbe2c71 156
08556813 157static boolean ppc_elf_finish_dynamic_sections PARAMS ((bfd *, struct bfd_link_info *));
bcbe2c71 158
d8fd85ad
MM		 159#define BRANCH_PREDICT_BIT 0x200000 /* branch prediction bit for branch taken relocs */
160#define RA_REGISTER_MASK 0x001f0000 /* mask to set RA in memory instructions */
161#define RA_REGISTER_SHIFT 16 /* value to shift register by to insert RA */
08556813
MM		 162
163/* The name of the dynamic interpreter. This is put in the .interp
164 section. */
165
166#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
bcbe2c71 167
3f7ca26b
MM		 168/* The size in bytes of an entry in the procedure linkage table, and of the initial size
169 of the plt reserved for the dynamic linker. */
170
171#define PLT_ENTRY_SIZE 12
172#define PLT_INITIAL_ENTRY_SIZE 72
173
ede4eed4
KR		 174\f
175static reloc_howto_type *ppc_elf_howto_table[ (int)R_PPC_max ];
176
177static reloc_howto_type ppc_elf_howto_raw[] =
bcbe2c71
MM		 178{
179 /* This reloc does nothing. */
08556813
MM		 180 HOWTO (R_PPC_NONE, /* type */
181 0, /* rightshift */
182 2, /* size (0 = byte, 1 = short, 2 = long) */
183 32, /* bitsize */
184 false, /* pc_relative */
185 0, /* bitpos */
bcbe2c71 186 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 187 bfd_elf_generic_reloc, /* special_function */
08556813
MM		 188 "R_PPC_NONE", /* name */
189 false, /* partial_inplace */
190 0, /* src_mask */
191 0, /* dst_mask */
192 false), /* pcrel_offset */
bcbe2c71
MM		 193
194 /* A standard 32 bit relocation. */
08556813
MM		 195 HOWTO (R_PPC_ADDR32, /* type */
196 0, /* rightshift */
197 2, /* size (0 = byte, 1 = short, 2 = long) */
198 32, /* bitsize */
199 false, /* pc_relative */
200 0, /* bitpos */
bcbe2c71 201 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 202 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 203 "R_PPC_ADDR32", /* name */
08556813
MM		 204 false, /* partial_inplace */
205 0, /* src_mask */
206 0xffffffff, /* dst_mask */
207 false), /* pcrel_offset */
bcbe2c71
MM		 208
209 /* An absolute 26 bit branch; the lower two bits must be zero.
210 FIXME: we don't check that, we just clear them. */
08556813
MM		 211 HOWTO (R_PPC_ADDR24, /* type */
212 0, /* rightshift */
213 2, /* size (0 = byte, 1 = short, 2 = long) */
214 26, /* bitsize */
215 false, /* pc_relative */
216 0, /* bitpos */
bcbe2c71 217 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 218 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 219 "R_PPC_ADDR24", /* name */
08556813
MM		 220 false, /* partial_inplace */
221 0, /* src_mask */
222 0x3fffffc, /* dst_mask */
223 false), /* pcrel_offset */
bcbe2c71
MM		 224
225 /* A standard 16 bit relocation. */
08556813
MM		 226 HOWTO (R_PPC_ADDR16, /* type */
227 0, /* rightshift */
228 1, /* size (0 = byte, 1 = short, 2 = long) */
229 16, /* bitsize */
230 false, /* pc_relative */
231 0, /* bitpos */
bcbe2c71 232 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 233 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 234 "R_PPC_ADDR16", /* name */
08556813
MM		 235 false, /* partial_inplace */
236 0, /* src_mask */
237 0xffff, /* dst_mask */
238 false), /* pcrel_offset */
bcbe2c71
MM		 239
240 /* A 16 bit relocation without overflow. */
08556813
MM		 241 HOWTO (R_PPC_ADDR16_LO, /* type */
242 0, /* rightshift */
243 1, /* size (0 = byte, 1 = short, 2 = long) */
244 16, /* bitsize */
245 false, /* pc_relative */
246 0, /* bitpos */
bcbe2c71 247 complain_overflow_dont,/* complain_on_overflow */
bd2d10c0 248 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 249 "R_PPC_ADDR16_LO", /* name */
08556813
MM		 250 false, /* partial_inplace */
251 0, /* src_mask */
252 0xffff, /* dst_mask */
253 false), /* pcrel_offset */
bcbe2c71
MM		 254
255 /* The high order 16 bits of an address. */
08556813
MM		 256 HOWTO (R_PPC_ADDR16_HI, /* type */
257 16, /* rightshift */
258 1, /* size (0 = byte, 1 = short, 2 = long) */
259 16, /* bitsize */
260 false, /* pc_relative */
261 0, /* bitpos */
bcbe2c71 262 complain_overflow_dont, /* complain_on_overflow */
bd2d10c0 263 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 264 "R_PPC_ADDR16_HI", /* name */
08556813
MM		 265 false, /* partial_inplace */
266 0, /* src_mask */
267 0xffff, /* dst_mask */
268 false), /* pcrel_offset */
bcbe2c71
MM		 269
270 /* The high order 16 bits of an address, plus 1 if the contents of
08556813
MM		 271 the low 16 bits, treated as a signed number, is negative. */
272 HOWTO (R_PPC_ADDR16_HA, /* type */
273 16, /* rightshift */
274 1, /* size (0 = byte, 1 = short, 2 = long) */
275 16, /* bitsize */
276 false, /* pc_relative */
277 0, /* bitpos */
bcbe2c71 278 complain_overflow_dont, /* complain_on_overflow */
07a159db 279 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 280 "R_PPC_ADDR16_HA", /* name */
08556813
MM		 281 false, /* partial_inplace */
282 0, /* src_mask */
283 0xffff, /* dst_mask */
284 false), /* pcrel_offset */
bcbe2c71
MM		 285
286 /* An absolute 16 bit branch; the lower two bits must be zero.
287 FIXME: we don't check that, we just clear them. */
08556813
MM		 288 HOWTO (R_PPC_ADDR14, /* type */
289 0, /* rightshift */
290 2, /* size (0 = byte, 1 = short, 2 = long) */
291 16, /* bitsize */
292 false, /* pc_relative */
293 0, /* bitpos */
bcbe2c71 294 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 295 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 296 "R_PPC_ADDR14", /* name */
08556813
MM		 297 false, /* partial_inplace */
298 0, /* src_mask */
299 0xfffc, /* dst_mask */
300 false), /* pcrel_offset */
bcbe2c71
MM		 301
302 /* An absolute 16 bit branch, for which bit 10 should be set to
08556813
MM		 303 indicate that the branch is expected to be taken. The lower two
304 bits must be zero. */
305 HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */
306 0, /* rightshift */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
308 16, /* bitsize */
309 false, /* pc_relative */
310 0, /* bitpos */
bcbe2c71 311 complain_overflow_bitfield, /* complain_on_overflow */
07a159db 312 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 313 "R_PPC_ADDR14_BRTAKEN",/* name */
08556813
MM		 314 false, /* partial_inplace */
315 0, /* src_mask */
316 0xfffc, /* dst_mask */
317 false), /* pcrel_offset */
bcbe2c71
MM		 318
319 /* An absolute 16 bit branch, for which bit 10 should be set to
320 indicate that the branch is not expected to be taken. The lower
321 two bits must be zero. */
322 HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
08556813
MM		 323 0, /* rightshift */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
325 16, /* bitsize */
326 false, /* pc_relative */
327 0, /* bitpos */
bcbe2c71 328 complain_overflow_bitfield, /* complain_on_overflow */
07a159db 329 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 330 "R_PPC_ADDR14_BRNTAKEN",/* name */
08556813
MM		 331 false, /* partial_inplace */
332 0, /* src_mask */
333 0xfffc, /* dst_mask */
334 false), /* pcrel_offset */
335
336 /* A relative 26 bit branch; the lower two bits must be zero. */
337 HOWTO (R_PPC_REL24, /* type */
338 0, /* rightshift */
339 2, /* size (0 = byte, 1 = short, 2 = long) */
340 26, /* bitsize */
341 true, /* pc_relative */
342 0, /* bitpos */
bcbe2c71 343 complain_overflow_signed, /* complain_on_overflow */
bd2d10c0 344 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 345 "R_PPC_REL24", /* name */
08556813
MM		 346 false, /* partial_inplace */
347 0, /* src_mask */
348 0x3fffffc, /* dst_mask */
349 true), /* pcrel_offset */
350
351 /* A relative 16 bit branch; the lower two bits must be zero. */
352 HOWTO (R_PPC_REL14, /* type */
353 0, /* rightshift */
354 2, /* size (0 = byte, 1 = short, 2 = long) */
355 16, /* bitsize */
356 true, /* pc_relative */
357 0, /* bitpos */
bcbe2c71 358 complain_overflow_signed, /* complain_on_overflow */
bd2d10c0 359 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 360 "R_PPC_REL14", /* name */
08556813
MM		 361 false, /* partial_inplace */
362 0, /* src_mask */
363 0xfffc, /* dst_mask */
364 true), /* pcrel_offset */
bcbe2c71 365
08556813 366 /* A relative 16 bit branch. Bit 10 should be set to indicate that
bcbe2c71
MM		 367 the branch is expected to be taken. The lower two bits must be
368 zero. */
08556813
MM		 369 HOWTO (R_PPC_REL14_BRTAKEN, /* type */
370 0, /* rightshift */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
372 16, /* bitsize */
373 true, /* pc_relative */
374 0, /* bitpos */
bcbe2c71 375 complain_overflow_signed, /* complain_on_overflow */
07a159db 376 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 377 "R_PPC_REL14_BRTAKEN", /* name */
08556813
MM		 378 false, /* partial_inplace */
379 0, /* src_mask */
380 0xfffc, /* dst_mask */
381 true), /* pcrel_offset */
bcbe2c71 382
08556813 383 /* A relative 16 bit branch. Bit 10 should be set to indicate that
bcbe2c71
MM		 384 the branch is not expected to be taken. The lower two bits must
385 be zero. */
08556813
MM		 386 HOWTO (R_PPC_REL14_BRNTAKEN, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 16, /* bitsize */
390 true, /* pc_relative */
391 0, /* bitpos */
bcbe2c71 392 complain_overflow_signed, /* complain_on_overflow */
07a159db 393 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 394 "R_PPC_REL14_BRNTAKEN",/* name */
08556813
MM		 395 false, /* partial_inplace */
396 0, /* src_mask */
397 0xfffc, /* dst_mask */
398 true), /* pcrel_offset */
bcbe2c71
MM		 399
400 /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
401 symbol. */
08556813
MM		 402 HOWTO (R_PPC_GOT16, /* type */
403 0, /* rightshift */
404 1, /* size (0 = byte, 1 = short, 2 = long) */
405 16, /* bitsize */
406 false, /* pc_relative */
407 0, /* bitpos */
ede4eed4 408 complain_overflow_signed, /* complain_on_overflow */
07a159db 409 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 410 "R_PPC_GOT16", /* name */
08556813
MM		 411 false, /* partial_inplace */
412 0, /* src_mask */
413 0xffff, /* dst_mask */
414 false), /* pcrel_offset */
bcbe2c71
MM		 415
416 /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
417 the symbol. */
08556813
MM		 418 HOWTO (R_PPC_GOT16_LO, /* type */
419 0, /* rightshift */
420 1, /* size (0 = byte, 1 = short, 2 = long) */
421 16, /* bitsize */
422 false, /* pc_relative */
423 0, /* bitpos */
bcbe2c71 424 complain_overflow_bitfield, /* complain_on_overflow */
07a159db 425 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 426 "R_PPC_GOT16_LO", /* name */
08556813
MM		 427 false, /* partial_inplace */
428 0, /* src_mask */
429 0xffff, /* dst_mask */
430 false), /* pcrel_offset */
bcbe2c71
MM		 431
432 /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
433 the symbol. */
08556813
MM		 434 HOWTO (R_PPC_GOT16_HI, /* type */
435 16, /* rightshift */
436 1, /* size (0 = byte, 1 = short, 2 = long) */
437 16, /* bitsize */
438 false, /* pc_relative */
439 0, /* bitpos */
bcbe2c71 440 complain_overflow_bitfield, /* complain_on_overflow */
07a159db 441 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 442 "R_PPC_GOT16_HI", /* name */
08556813
MM		 443 false, /* partial_inplace */
444 0, /* src_mask */
445 0xffff, /* dst_mask */
446 false), /* pcrel_offset */
bcbe2c71
MM		 447
448 /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
cf5138e3 449 the symbol. */
08556813
MM		 450 HOWTO (R_PPC_GOT16_HA, /* type */
451 0, /* rightshift */
452 1, /* size (0 = byte, 1 = short, 2 = long) */
453 16, /* bitsize */
454 false, /* pc_relative */
455 0, /* bitpos */
bcbe2c71 456 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 457 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 458 "R_PPC_GOT16_HA", /* name */
08556813
MM		 459 false, /* partial_inplace */
460 0, /* src_mask */
461 0xffff, /* dst_mask */
462 false), /* pcrel_offset */
bcbe2c71
MM		 463
464 /* Like R_PPC_REL24, but referring to the procedure linkage table
465 entry for the symbol. FIXME: Not supported. */
02f85cda 466 HOWTO (R_PPC_PLTREL24, /* type */
08556813
MM		 467 0, /* rightshift */
468 2, /* size (0 = byte, 1 = short, 2 = long) */
469 26, /* bitsize */
470 true, /* pc_relative */
471 0, /* bitpos */
472 complain_overflow_signed, /* complain_on_overflow */
bd2d10c0 473 bfd_elf_generic_reloc, /* special_function */
02f85cda 474 "R_PPC_PLTREL24", /* name */
08556813
MM		 475 false, /* partial_inplace */
476 0, /* src_mask */
477 0x3fffffc, /* dst_mask */
478 true), /* pcrel_offset */
bcbe2c71
MM		 479
480 /* This is used only by the dynamic linker. The symbol should exist
481 both in the object being run and in some shared library. The
482 dynamic linker copies the data addressed by the symbol from the
483 shared library into the object. I have no idea what the purpose
484 of this is. */
08556813
MM		 485 HOWTO (R_PPC_COPY, /* type */
486 0, /* rightshift */
487 2, /* size (0 = byte, 1 = short, 2 = long) */
488 32, /* bitsize */
489 false, /* pc_relative */
490 0, /* bitpos */
bcbe2c71 491 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 492 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 493 "R_PPC_COPY", /* name */
08556813
MM		 494 false, /* partial_inplace */
495 0, /* src_mask */
496 0, /* dst_mask */
497 false), /* pcrel_offset */
bcbe2c71
MM		 498
499 /* Like R_PPC_ADDR32, but used when setting global offset table
500 entries. */
08556813
MM		 501 HOWTO (R_PPC_GLOB_DAT, /* type */
502 0, /* rightshift */
503 2, /* size (0 = byte, 1 = short, 2 = long) */
504 32, /* bitsize */
505 false, /* pc_relative */
506 0, /* bitpos */
bcbe2c71 507 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 508 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 509 "R_PPC_GLOB_DAT", /* name */
08556813
MM		 510 false, /* partial_inplace */
511 0, /* src_mask */
512 0xffffffff, /* dst_mask */
513 false), /* pcrel_offset */
bcbe2c71
MM		 514
515 /* Marks a procedure linkage table entry for a symbol. */
08556813
MM		 516 HOWTO (R_PPC_JMP_SLOT, /* type */
517 0, /* rightshift */
518 2, /* size (0 = byte, 1 = short, 2 = long) */
519 32, /* bitsize */
520 false, /* pc_relative */
521 0, /* bitpos */
bcbe2c71 522 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 523 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 524 "R_PPC_JMP_SLOT", /* name */
08556813
MM		 525 false, /* partial_inplace */
526 0, /* src_mask */
527 0, /* dst_mask */
528 false), /* pcrel_offset */
bcbe2c71
MM		 529
530 /* Used only by the dynamic linker. When the object is run, this
531 longword is set to the load address of the object, plus the
532 addend. */
08556813
MM		 533 HOWTO (R_PPC_RELATIVE, /* type */
534 0, /* rightshift */
535 2, /* size (0 = byte, 1 = short, 2 = long) */
536 32, /* bitsize */
537 false, /* pc_relative */
538 0, /* bitpos */
bcbe2c71 539 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 540 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 541 "R_PPC_RELATIVE", /* name */
08556813
MM		 542 false, /* partial_inplace */
543 0, /* src_mask */
544 0xffffffff, /* dst_mask */
545 false), /* pcrel_offset */
bcbe2c71
MM		 546
547 /* Like R_PPC_REL24, but uses the value of the symbol within the
548 object rather than the final value. Normally used for
549 _GLOBAL_OFFSET_TABLE_. FIXME: Not supported. */
08556813
MM		 550 HOWTO (R_PPC_LOCAL24PC, /* type */
551 0, /* rightshift */
552 2, /* size (0 = byte, 1 = short, 2 = long) */
553 26, /* bitsize */
554 true, /* pc_relative */
555 0, /* bitpos */
bcbe2c71 556 complain_overflow_signed, /* complain_on_overflow */
bd2d10c0 557 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 558 "R_PPC_LOCAL24PC", /* name */
08556813
MM		 559 false, /* partial_inplace */
560 0, /* src_mask */
561 0x3fffffc, /* dst_mask */
562 true), /* pcrel_offset */
bcbe2c71
MM		 563
564 /* Like R_PPC_ADDR32, but may be unaligned. */
08556813
MM		 565 HOWTO (R_PPC_UADDR32, /* type */
566 0, /* rightshift */
567 2, /* size (0 = byte, 1 = short, 2 = long) */
568 32, /* bitsize */
569 false, /* pc_relative */
570 0, /* bitpos */
bcbe2c71 571 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 572 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 573 "R_PPC_UADDR32", /* name */
08556813
MM		 574 false, /* partial_inplace */
575 0, /* src_mask */
576 0xffffffff, /* dst_mask */
577 false), /* pcrel_offset */
bcbe2c71
MM		 578
579 /* Like R_PPC_ADDR16, but may be unaligned. */
08556813
MM		 580 HOWTO (R_PPC_UADDR16, /* type */
581 0, /* rightshift */
582 1, /* size (0 = byte, 1 = short, 2 = long) */
583 16, /* bitsize */
584 false, /* pc_relative */
585 0, /* bitpos */
bcbe2c71 586 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 587 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 588 "R_PPC_UADDR16", /* name */
08556813
MM		 589 false, /* partial_inplace */
590 0, /* src_mask */
591 0xffff, /* dst_mask */
592 false), /* pcrel_offset */
bcbe2c71
MM		 593
594 /* 32-bit PC relative */
595 HOWTO (R_PPC_REL32, /* type */
08556813
MM		 596 0, /* rightshift */
597 2, /* size (0 = byte, 1 = short, 2 = long) */
598 32, /* bitsize */
599 true, /* pc_relative */
600 0, /* bitpos */
bcbe2c71 601 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 602 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 603 "R_PPC_REL32", /* name */
08556813
MM		 604 false, /* partial_inplace */
605 0, /* src_mask */
606 0xffffffff, /* dst_mask */
bcbe2c71
MM		 607 true), /* pcrel_offset */
608
609 /* 32-bit relocation to the symbol's procedure linkage table.
610 FIXEME: not supported. */
611 HOWTO (R_PPC_PLT32, /* type */
08556813
MM		 612 0, /* rightshift */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
614 32, /* bitsize */
615 false, /* pc_relative */
616 0, /* bitpos */
bcbe2c71 617 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 618 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 619 "R_PPC_PLT32", /* name */
08556813
MM		 620 false, /* partial_inplace */
621 0, /* src_mask */
622 0, /* dst_mask */
623 false), /* pcrel_offset */
bcbe2c71
MM		 624
625 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
626 FIXEME: not supported. */
627 HOWTO (R_PPC_PLTREL32, /* type */
08556813
MM		 628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 32, /* bitsize */
631 true, /* pc_relative */
632 0, /* bitpos */
bcbe2c71 633 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 634 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 635 "R_PPC_PLTREL32", /* name */
08556813
MM		 636 false, /* partial_inplace */
637 0, /* src_mask */
638 0, /* dst_mask */
bcbe2c71
MM		 639 true), /* pcrel_offset */
640
641 /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
642 the symbol. */
08556813
MM		 643 HOWTO (R_PPC_PLT16_LO, /* type */
644 0, /* rightshift */
645 1, /* size (0 = byte, 1 = short, 2 = long) */
646 16, /* bitsize */
647 false, /* pc_relative */
648 0, /* bitpos */
bcbe2c71 649 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 650 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 651 "R_PPC_PLT16_LO", /* name */
08556813
MM		 652 false, /* partial_inplace */
653 0, /* src_mask */
654 0xffff, /* dst_mask */
655 false), /* pcrel_offset */
bcbe2c71
MM		 656
657 /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
658 the symbol. */
08556813
MM		 659 HOWTO (R_PPC_PLT16_HI, /* type */
660 16, /* rightshift */
661 1, /* size (0 = byte, 1 = short, 2 = long) */
662 16, /* bitsize */
663 false, /* pc_relative */
664 0, /* bitpos */
bcbe2c71 665 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 666 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 667 "R_PPC_PLT16_HI", /* name */
08556813
MM		 668 false, /* partial_inplace */
669 0, /* src_mask */
670 0xffff, /* dst_mask */
671 false), /* pcrel_offset */
bcbe2c71
MM		 672
673 /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
08556813
MM		 674 the symbol. FIXME: Not supported. */
675 HOWTO (R_PPC_PLT16_HA, /* type */
676 0, /* rightshift */
677 1, /* size (0 = byte, 1 = short, 2 = long) */
678 16, /* bitsize */
679 false, /* pc_relative */
680 0, /* bitpos */
bcbe2c71 681 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 682 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 683 "R_PPC_PLT16_HA", /* name */
08556813
MM		 684 false, /* partial_inplace */
685 0, /* src_mask */
686 0xffff, /* dst_mask */
687 false), /* pcrel_offset */
bcbe2c71 688
4500a112 689 /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
cf5138e3 690 small data items. */
02f85cda 691 HOWTO (R_PPC_SDAREL16, /* type */
08556813
MM		 692 0, /* rightshift */
693 1, /* size (0 = byte, 1 = short, 2 = long) */
694 16, /* bitsize */
695 false, /* pc_relative */
696 0, /* bitpos */
dd82c578 697 complain_overflow_signed, /* complain_on_overflow */
07a159db 698 bfd_elf_generic_reloc, /* special_function */
02f85cda 699 "R_PPC_SDAREL16", /* name */
08556813
MM		 700 false, /* partial_inplace */
701 0, /* src_mask */
702 0xffff, /* dst_mask */
703 false), /* pcrel_offset */
bcbe2c71 704
cf5138e3 705 /* 32-bit section relative relocation. */
bcbe2c71 706 HOWTO (R_PPC_SECTOFF, /* type */
08556813
MM		 707 0, /* rightshift */
708 2, /* size (0 = byte, 1 = short, 2 = long) */
709 32, /* bitsize */
710 true, /* pc_relative */
711 0, /* bitpos */
bcbe2c71 712 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 713 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 714 "R_PPC_SECTOFF", /* name */
08556813
MM		 715 false, /* partial_inplace */
716 0, /* src_mask */
717 0, /* dst_mask */
bcbe2c71
MM		 718 true), /* pcrel_offset */
719
cf5138e3 720 /* 16-bit lower half section relative relocation. */
08556813
MM		 721 HOWTO (R_PPC_SECTOFF_LO, /* type */
722 0, /* rightshift */
723 1, /* size (0 = byte, 1 = short, 2 = long) */
724 16, /* bitsize */
725 false, /* pc_relative */
726 0, /* bitpos */
bcbe2c71 727 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 728 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 729 "R_PPC_SECTOFF_LO", /* name */
08556813
MM		 730 false, /* partial_inplace */
731 0, /* src_mask */
732 0xffff, /* dst_mask */
733 false), /* pcrel_offset */
bcbe2c71 734
cf5138e3 735 /* 16-bit upper half section relative relocation. */
bcbe2c71 736 HOWTO (R_PPC_SECTOFF_HI, /* type */
08556813
MM		 737 16, /* rightshift */
738 1, /* size (0 = byte, 1 = short, 2 = long) */
739 16, /* bitsize */
740 false, /* pc_relative */
741 0, /* bitpos */
bcbe2c71 742 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 743 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 744 "R_PPC_SECTOFF_HI", /* name */
08556813
MM		 745 false, /* partial_inplace */
746 0, /* src_mask */
747 0xffff, /* dst_mask */
748 false), /* pcrel_offset */
bcbe2c71 749
cf5138e3 750 /* 16-bit upper half adjusted section relative relocation. */
bcbe2c71 751 HOWTO (R_PPC_SECTOFF_HA, /* type */
08556813
MM		 752 0, /* rightshift */
753 1, /* size (0 = byte, 1 = short, 2 = long) */
754 16, /* bitsize */
755 false, /* pc_relative */
756 0, /* bitpos */
bcbe2c71 757 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 758 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 759 "R_PPC_SECTOFF_HA", /* name */
08556813
MM		 760 false, /* partial_inplace */
761 0, /* src_mask */
762 0xffff, /* dst_mask */
763 false), /* pcrel_offset */
bcbe2c71
MM		 764
765 /* The remaining relocs are from the Embedded ELF ABI, and are not
766 in the SVR4 ELF ABI. */
767
768 /* 32 bit value resulting from the addend minus the symbol */
769 HOWTO (R_PPC_EMB_NADDR32, /* type */
08556813
MM		 770 0, /* rightshift */
771 2, /* size (0 = byte, 1 = short, 2 = long) */
772 32, /* bitsize */
773 false, /* pc_relative */
774 0, /* bitpos */
bcbe2c71 775 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 776 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 777 "R_PPC_EMB_NADDR32", /* name */
08556813
MM		 778 false, /* partial_inplace */
779 0, /* src_mask */
780 0xffffffff, /* dst_mask */
781 false), /* pcrel_offset */
bcbe2c71 782
4500a112 783 /* 16 bit value resulting from the addend minus the symbol */
bcbe2c71 784 HOWTO (R_PPC_EMB_NADDR16, /* type */
08556813
MM		 785 0, /* rightshift */
786 1, /* size (0 = byte, 1 = short, 2 = long) */
787 16, /* bitsize */
788 false, /* pc_relative */
789 0, /* bitpos */
bcbe2c71 790 complain_overflow_bitfield, /* complain_on_overflow */
bd2d10c0 791 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 792 "R_PPC_EMB_NADDR16", /* name */
08556813
MM		 793 false, /* partial_inplace */
794 0, /* src_mask */
795 0xffff, /* dst_mask */
796 false), /* pcrel_offset */
bcbe2c71
MM		 797
798 /* 16 bit value resulting from the addend minus the symbol */
799 HOWTO (R_PPC_EMB_NADDR16_LO, /* type */
08556813
MM		 800 0, /* rightshift */
801 1, /* size (0 = byte, 1 = short, 2 = long) */
802 16, /* bitsize */
803 false, /* pc_relative */
804 0, /* bitpos */
bcbe2c71 805 complain_overflow_dont,/* complain_on_overflow */
bd2d10c0 806 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 807 "R_PPC_EMB_ADDR16_LO", /* name */
08556813
MM		 808 false, /* partial_inplace */
809 0, /* src_mask */
810 0xffff, /* dst_mask */
811 false), /* pcrel_offset */
bcbe2c71
MM		 812
813 /* The high order 16 bits of the addend minus the symbol */
814 HOWTO (R_PPC_EMB_NADDR16_HI, /* type */
08556813
MM		 815 16, /* rightshift */
816 1, /* size (0 = byte, 1 = short, 2 = long) */
817 16, /* bitsize */
818 false, /* pc_relative */
819 0, /* bitpos */
bcbe2c71 820 complain_overflow_dont, /* complain_on_overflow */
bd2d10c0 821 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 822 "R_PPC_EMB_NADDR16_HI", /* name */
08556813
MM		 823 false, /* partial_inplace */
824 0, /* src_mask */
825 0xffff, /* dst_mask */
826 false), /* pcrel_offset */
bcbe2c71
MM		 827
828 /* The high order 16 bits of the result of the addend minus the address,
829 plus 1 if the contents of the low 16 bits, treated as a signed number,
830 is negative. */
831 HOWTO (R_PPC_EMB_NADDR16_HA, /* type */
08556813
MM		 832 16, /* rightshift */
833 1, /* size (0 = byte, 1 = short, 2 = long) */
834 16, /* bitsize */
835 false, /* pc_relative */
836 0, /* bitpos */
bcbe2c71 837 complain_overflow_dont, /* complain_on_overflow */
bd2d10c0 838 bfd_elf_generic_reloc, /* special_function */
bcbe2c71 839 "R_PPC_EMB_NADDR16_HA", /* name */
08556813
MM		 840 false, /* partial_inplace */
841 0, /* src_mask */
842 0xffff, /* dst_mask */
843 false), /* pcrel_offset */
844
4500a112
MM		 845 /* 16 bit value resulting from allocating a 4 byte word to hold an
846 address in the .sdata section, and returning the offset from
847 _SDA_BASE_ for that relocation */
848 HOWTO (R_PPC_EMB_SDAI16, /* type */
849 0, /* rightshift */
850 1, /* size (0 = byte, 1 = short, 2 = long) */
851 16, /* bitsize */
852 false, /* pc_relative */
853 0, /* bitpos */
854 complain_overflow_bitfield, /* complain_on_overflow */
855 bfd_elf_generic_reloc, /* special_function */
856 "R_PPC_EMB_SDAI16", /* name */
857 false, /* partial_inplace */
858 0, /* src_mask */
859 0xffff, /* dst_mask */
860 false), /* pcrel_offset */
861
862 /* 16 bit value resulting from allocating a 4 byte word to hold an
863 address in the .sdata2 section, and returning the offset from
864 _SDA2_BASE_ for that relocation */
865 HOWTO (R_PPC_EMB_SDA2I16, /* type */
866 0, /* rightshift */
867 1, /* size (0 = byte, 1 = short, 2 = long) */
868 16, /* bitsize */
869 false, /* pc_relative */
870 0, /* bitpos */
871 complain_overflow_bitfield, /* complain_on_overflow */
872 bfd_elf_generic_reloc, /* special_function */
873 "R_PPC_EMB_SDA2I16", /* name */
874 false, /* partial_inplace */
875 0, /* src_mask */
876 0xffff, /* dst_mask */
877 false), /* pcrel_offset */
878
879 /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
cf5138e3 880 small data items. */
4500a112
MM		 881 HOWTO (R_PPC_EMB_SDA2REL, /* type */
882 0, /* rightshift */
883 1, /* size (0 = byte, 1 = short, 2 = long) */
884 16, /* bitsize */
885 false, /* pc_relative */
886 0, /* bitpos */
887 complain_overflow_signed, /* complain_on_overflow */
888 bfd_elf_generic_reloc, /* special_function */
889 "R_PPC_EMB_SDA2REL", /* name */
890 false, /* partial_inplace */
891 0, /* src_mask */
892 0xffff, /* dst_mask */
893 false), /* pcrel_offset */
894
895 /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
896 signed offset from the appropriate base, and filling in the register
897 field with the appropriate register (0, 2, or 13). */
898 HOWTO (R_PPC_EMB_SDA21, /* type */
899 0, /* rightshift */
cf5138e3 900 2, /* size (0 = byte, 1 = short, 2 = long) */
4500a112
MM		 901 16, /* bitsize */
902 false, /* pc_relative */
903 0, /* bitpos */
904 complain_overflow_signed, /* complain_on_overflow */
905 bfd_elf_generic_reloc, /* special_function */
906 "R_PPC_EMB_SDA21", /* name */
907 false, /* partial_inplace */
908 0, /* src_mask */
909 0xffff, /* dst_mask */
910 false), /* pcrel_offset */
911
912 /* Relocation not handled: R_PPC_EMB_MRKREF */
913 /* Relocation not handled: R_PPC_EMB_RELSEC16 */
914 /* Relocation not handled: R_PPC_EMB_RELST_LO */
915 /* Relocation not handled: R_PPC_EMB_RELST_HI */
916 /* Relocation not handled: R_PPC_EMB_RELST_HA */
917 /* Relocation not handled: R_PPC_EMB_BIT_FLD */
918
919 /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
920 in the 16 bit signed offset from the appropriate base, and filling in the
921 register field with the appropriate register (0, 2, or 13). */
922 HOWTO (R_PPC_EMB_RELSDA, /* type */
923 0, /* rightshift */
924 1, /* size (0 = byte, 1 = short, 2 = long) */
925 16, /* bitsize */
926 true, /* pc_relative */
927 0, /* bitpos */
928 complain_overflow_signed, /* complain_on_overflow */
929 bfd_elf_generic_reloc, /* special_function */
930 "R_PPC_EMB_RELSDA", /* name */
931 false, /* partial_inplace */
932 0, /* src_mask */
933 0xffff, /* dst_mask */
934 false), /* pcrel_offset */
935
08556813
MM		 936 /* Phony reloc to handle AIX style TOC entries */
937 HOWTO (R_PPC_TOC16, /* type */
938 0, /* rightshift */
939 1, /* size (0 = byte, 1 = short, 2 = long) */
940 16, /* bitsize */
941 false, /* pc_relative */
942 0, /* bitpos */
943 complain_overflow_signed, /* complain_on_overflow */
07a159db 944 bfd_elf_generic_reloc, /* special_function */
08556813
MM		 945 "R_PPC_TOC16", /* name */
946 false, /* partial_inplace */
947 0, /* src_mask */
948 0xffff, /* dst_mask */
949 false), /* pcrel_offset */
bcbe2c71
MM		 950};
951
ede4eed4
KR		 952\f
953/* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */
954
955static void
956ppc_elf_howto_init ()
957{
958 unsigned int i, type;
959
960 for (i = 0; i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); i++)
961 {
962 type = ppc_elf_howto_raw[i].type;
963 BFD_ASSERT (type < sizeof(ppc_elf_howto_table) / sizeof(ppc_elf_howto_table[0]));
964 ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
965 }
966}
967
968\f
969static reloc_howto_type *
970ppc_elf_reloc_type_lookup (abfd, code)
971 bfd *abfd;
972 bfd_reloc_code_real_type code;
973{
08556813 974 enum ppc_reloc_type ppc_reloc = R_PPC_NONE;
02f85cda 975
ede4eed4
KR		 976 if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
977 ppc_elf_howto_init ();
978
979 switch ((int)code)
980 {
02f85cda
MM		 981 default:
982 return (reloc_howto_type *)NULL;
983
984 case BFD_RELOC_NONE: ppc_reloc = R_PPC_NONE; break;
985 case BFD_RELOC_32: ppc_reloc = R_PPC_ADDR32; break;
986 case BFD_RELOC_PPC_BA26: ppc_reloc = R_PPC_ADDR24; break;
987 case BFD_RELOC_16: ppc_reloc = R_PPC_ADDR16; break;
988 case BFD_RELOC_LO16: ppc_reloc = R_PPC_ADDR16_LO; break;
989 case BFD_RELOC_HI16: ppc_reloc = R_PPC_ADDR16_HI; break;
990 case BFD_RELOC_HI16_S: ppc_reloc = R_PPC_ADDR16_HA; break;
991 case BFD_RELOC_PPC_BA16: ppc_reloc = R_PPC_ADDR14; break;
992 case BFD_RELOC_PPC_BA16_BRTAKEN: ppc_reloc = R_PPC_ADDR14_BRTAKEN; break;
993 case BFD_RELOC_PPC_BA16_BRNTAKEN: ppc_reloc = R_PPC_ADDR14_BRNTAKEN; break;
994 case BFD_RELOC_PPC_B26: ppc_reloc = R_PPC_REL24; break;
995 case BFD_RELOC_PPC_B16: ppc_reloc = R_PPC_REL14; break;
996 case BFD_RELOC_PPC_B16_BRTAKEN: ppc_reloc = R_PPC_REL14_BRTAKEN; break;
997 case BFD_RELOC_PPC_B16_BRNTAKEN: ppc_reloc = R_PPC_REL14_BRNTAKEN; break;
08556813 998 case BFD_RELOC_16_GOTOFF: ppc_reloc = R_PPC_GOT16; break;
02f85cda
MM		 999 case BFD_RELOC_LO16_GOTOFF: ppc_reloc = R_PPC_GOT16_LO; break;
1000 case BFD_RELOC_HI16_GOTOFF: ppc_reloc = R_PPC_GOT16_HI; break;
1001 case BFD_RELOC_HI16_S_GOTOFF: ppc_reloc = R_PPC_GOT16_HA; break;
1002 case BFD_RELOC_24_PLT_PCREL: ppc_reloc = R_PPC_PLTREL24; break;
1003 case BFD_RELOC_PPC_COPY: ppc_reloc = R_PPC_COPY; break;
1004 case BFD_RELOC_PPC_GLOB_DAT: ppc_reloc = R_PPC_GLOB_DAT; break;
1005 case BFD_RELOC_PPC_LOCAL24PC: ppc_reloc = R_PPC_LOCAL24PC; break;
1006 case BFD_RELOC_32_PCREL: ppc_reloc = R_PPC_REL32; break;
1007 case BFD_RELOC_32_PLTOFF: ppc_reloc = R_PPC_PLT32; break;
1008 case BFD_RELOC_32_PLT_PCREL: ppc_reloc = R_PPC_PLTREL32; break;
1009 case BFD_RELOC_LO16_PLTOFF: ppc_reloc = R_PPC_PLT16_LO; break;
1010 case BFD_RELOC_HI16_PLTOFF: ppc_reloc = R_PPC_PLT16_HI; break;
1011 case BFD_RELOC_HI16_S_PLTOFF: ppc_reloc = R_PPC_PLT16_HA; break;
1012 case BFD_RELOC_GPREL16: ppc_reloc = R_PPC_SDAREL16; break;
1013 case BFD_RELOC_32_BASEREL: ppc_reloc = R_PPC_SECTOFF; break;
1014 case BFD_RELOC_LO16_BASEREL: ppc_reloc = R_PPC_SECTOFF_LO; break;
1015 case BFD_RELOC_HI16_BASEREL: ppc_reloc = R_PPC_SECTOFF_HI; break;
1016 case BFD_RELOC_HI16_S_BASEREL: ppc_reloc = R_PPC_SECTOFF_HA; break;
1017 case BFD_RELOC_CTOR: ppc_reloc = R_PPC_ADDR32; break;
08556813 1018 case BFD_RELOC_PPC_TOC16: ppc_reloc = R_PPC_TOC16; break;
4500a112
MM		 1019 case BFD_RELOC_PPC_EMB_NADDR32: ppc_reloc = R_PPC_EMB_NADDR32; break;
1020 case BFD_RELOC_PPC_EMB_NADDR16: ppc_reloc = R_PPC_EMB_NADDR16; break;
1021 case BFD_RELOC_PPC_EMB_NADDR16_LO: ppc_reloc = R_PPC_EMB_NADDR16_LO; break;
1022 case BFD_RELOC_PPC_EMB_NADDR16_HI: ppc_reloc = R_PPC_EMB_NADDR16_HI; break;
1023 case BFD_RELOC_PPC_EMB_NADDR16_HA: ppc_reloc = R_PPC_EMB_NADDR16_HA; break;
1024 case BFD_RELOC_PPC_EMB_SDAI16: ppc_reloc = R_PPC_EMB_SDAI16; break;
1025 case BFD_RELOC_PPC_EMB_SDA2I16: ppc_reloc = R_PPC_EMB_SDA2I16; break;
1026 case BFD_RELOC_PPC_EMB_SDA2REL: ppc_reloc = R_PPC_EMB_SDA2REL; break;
1027 case BFD_RELOC_PPC_EMB_SDA21: ppc_reloc = R_PPC_EMB_SDA21; break;
1028 case BFD_RELOC_PPC_EMB_MRKREF: ppc_reloc = R_PPC_EMB_MRKREF; break;
1029 case BFD_RELOC_PPC_EMB_RELSEC16: ppc_reloc = R_PPC_EMB_RELSEC16; break;
1030 case BFD_RELOC_PPC_EMB_RELST_LO: ppc_reloc = R_PPC_EMB_RELST_LO; break;
1031 case BFD_RELOC_PPC_EMB_RELST_HI: ppc_reloc = R_PPC_EMB_RELST_HI; break;
1032 case BFD_RELOC_PPC_EMB_RELST_HA: ppc_reloc = R_PPC_EMB_RELST_HA; break;
1033 case BFD_RELOC_PPC_EMB_BIT_FLD: ppc_reloc = R_PPC_EMB_BIT_FLD; break;
1034 case BFD_RELOC_PPC_EMB_RELSDA: ppc_reloc = R_PPC_EMB_RELSDA; break;
ede4eed4
KR		 1035 }
1036
02f85cda 1037 return ppc_elf_howto_table[ (int)ppc_reloc ];
ede4eed4
KR		 1038};
1039
1040/* Set the howto pointer for a PowerPC ELF reloc. */
1041
1042static void
1043ppc_elf_info_to_howto (abfd, cache_ptr, dst)
1044 bfd *abfd;
1045 arelent *cache_ptr;
1046 Elf32_Internal_Rela *dst;
1047{
1048 if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
1049 ppc_elf_howto_init ();
1050
1051 BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
1052 cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
1053}
1054
1055/* Function to set whether a module needs the -mrelocatable bit set. */
1056
1057static boolean
1058ppc_elf_set_private_flags (abfd, flags)
1059 bfd *abfd;
1060 flagword flags;
1061{
761f377f 1062 BFD_ASSERT (!elf_flags_init (abfd)
ede4eed4
KR		 1063 || elf_elfheader (abfd)->e_flags == flags);
1064
1065 elf_elfheader (abfd)->e_flags = flags;
761f377f 1066 elf_flags_init (abfd) = true;
ede4eed4
KR		 1067 return true;
1068}
1069
1070/* Copy backend specific data from one object module to another */
1071static boolean
1072ppc_elf_copy_private_bfd_data (ibfd, obfd)
1073 bfd *ibfd;
1074 bfd *obfd;
1075{
1076 /* This function is selected based on the input vector. We only
1077 want to copy information over if the output BFD also uses Elf
1078 format. */
1079 if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1080 return true;
1081
761f377f 1082 BFD_ASSERT (!elf_flags_init (obfd)
ede4eed4
KR		 1083 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
1084
1085 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
761f377f 1086 elf_flags_init (obfd) = true;
ede4eed4
KR		 1087 return true;
1088}
1089
1090/* Merge backend specific data from an object file to the output
1091 object file when linking */
1092static boolean
1093ppc_elf_merge_private_bfd_data (ibfd, obfd)
1094 bfd *ibfd;
1095 bfd *obfd;
1096{
1097 flagword old_flags;
1098 flagword new_flags;
08556813 1099 boolean error;
ede4eed4
KR		 1100
1101 /* Check if we have the same endianess */
07a159db
MM		 1102 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
1103 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
ede4eed4 1104 {
7a7fbffb 1105 (*_bfd_error_handler)
07a159db 1106 ("%s: compiled for a %s endian system and target is %s endian",
7a7fbffb 1107 bfd_get_filename (ibfd),
08556813
MM		 1108 bfd_big_endian (ibfd) ? "big" : "little",
1109 bfd_big_endian (obfd) ? "big" : "little");
ede4eed4
KR		 1110
1111 bfd_set_error (bfd_error_wrong_format);
1112 return false;
1113 }
1114
1115 /* This function is selected based on the input vector. We only
1116 want to copy information over if the output BFD also uses Elf
1117 format. */
1118 if (bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1119 return true;
1120
1121 new_flags = elf_elfheader (ibfd)->e_flags;
1122 old_flags = elf_elfheader (obfd)->e_flags;
761f377f 1123 if (!elf_flags_init (obfd)) /* First call, no flags set */
ede4eed4 1124 {
761f377f 1125 elf_flags_init (obfd) = true;
ede4eed4
KR		 1126 elf_elfheader (obfd)->e_flags = new_flags;
1127 }
1128
1129 else if (new_flags == old_flags) /* Compatible flags are ok */
1130 ;
1131
1132 else /* Incompatible flags */
1133 {
dd82c578
MM		 1134 /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib to be linked
1135 with either. */
08556813 1136 error = false;
dd82c578
MM		 1137 if ((new_flags & EF_PPC_RELOCATABLE) != 0
1138 && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
ede4eed4 1139 {
08556813 1140 error = true;
7a7fbffb 1141 (*_bfd_error_handler)
07a159db 1142 ("%s: compiled with -mrelocatable and linked with modules compiled normally",
7a7fbffb 1143 bfd_get_filename (ibfd));
ede4eed4 1144 }
08eb30b6 1145 else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
dd82c578 1146 && (old_flags & EF_PPC_RELOCATABLE) != 0)
ede4eed4 1147 {
08556813 1148 error = true;
7a7fbffb 1149 (*_bfd_error_handler)
07a159db 1150 ("%s: compiled normally and linked with modules compiled with -mrelocatable",
7a7fbffb 1151 bfd_get_filename (ibfd));
ede4eed4 1152 }
dd82c578
MM		 1153 else if ((new_flags & EF_PPC_RELOCATABLE_LIB) != 0)
1154 elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE_LIB;
1155
ede4eed4 1156
3cbe19d2
MM		 1157 /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if any module uses it */
1158 elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
1159
1160 new_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
1161 old_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
ede4eed4
KR		 1162
1163 /* Warn about any other mismatches */
1164 if (new_flags != old_flags)
08556813
MM		 1165 {
1166 error = true;
1167 (*_bfd_error_handler)
07a159db 1168 ("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)",
08556813
MM		 1169 bfd_get_filename (ibfd), (long)new_flags, (long)old_flags);
1170 }
ede4eed4 1171
08556813
MM		 1172 if (error)
1173 {
1174 bfd_set_error (bfd_error_bad_value);
1175 return false;
1176 }
ede4eed4
KR		 1177 }
1178
1179 return true;
1180}
1181
83f4323e
MM		 1182\f
1183/* Handle a PowerPC specific section when reading an object file. This
1184 is called when elfcode.h finds a section with an unknown type. */
1185
1186static boolean
1187ppc_elf_section_from_shdr (abfd, hdr, name)
1188 bfd *abfd;
1189 Elf32_Internal_Shdr *hdr;
1190 char *name;
1191{
1192 asection *newsect;
1193 flagword flags;
1194
1195 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
1196 return false;
1197
1198 newsect = hdr->bfd_section;
1199 flags = bfd_get_section_flags (abfd, newsect);
1200 if (hdr->sh_flags & SHF_EXCLUDE)
1201 flags |= SEC_EXCLUDE;
1202
1203 if (hdr->sh_type == SHT_ORDERED)
1204 flags |= SEC_SORT_ENTRIES;
1205
1206 bfd_set_section_flags (abfd, newsect, flags);
1207 return true;
1208}
1209
57081126
MM		 1210\f
1211/* Set up any other section flags and such that may be necessary. */
1212
1213boolean
1214ppc_elf_fake_sections (abfd, shdr, asect)
1215 bfd *abfd;
1216 Elf32_Internal_Shdr *shdr;
1217 asection *asect;
1218{
1219 if ((asect->flags & SEC_EXCLUDE) != 0)
1220 shdr->sh_flags |= SHF_EXCLUDE;
1221
1222 if ((asect->flags & SEC_SORT_ENTRIES) != 0)
1223 shdr->sh_type = SHT_ORDERED;
3f7ca26b
MM		 1224
1225 return true;
57081126
MM		 1226}
1227
1c3a295b 1228\f
3b3753b8
MM		 1229/* Create a special linker section */
1230static elf_linker_section_t *
1231ppc_elf_create_linker_section (abfd, info, which)
1c3a295b
MM		 1232 bfd *abfd;
1233 struct bfd_link_info *info;
3b3753b8 1234 enum elf_linker_section_enum which;
1c3a295b 1235{
3b3753b8
MM		 1236 bfd *dynobj = elf_hash_table (info)->dynobj;
1237 elf_linker_section_t *lsect;
1c3a295b 1238
3b3753b8
MM		 1239 /* Record the first bfd section that needs the special section */
1240 if (!dynobj)
1241 dynobj = elf_hash_table (info)->dynobj = abfd;
1c3a295b 1242
3b3753b8
MM		 1243 /* If this is the first time, create the section */
1244 lsect = elf_linker_section (dynobj, which);
1245 if (!lsect)
1c3a295b 1246 {
3b3753b8
MM		 1247 elf_linker_section_t defaults;
1248 static elf_linker_section_t zero_section;
1249
1250 defaults = zero_section;
1251 defaults.which = which;
1252 defaults.hole_written_p = false;
1253 defaults.alignment = 2;
1254 defaults.flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
1255
1256 switch (which)
1257 {
1258 default:
1259 (*_bfd_error_handler) ("%s: Unknown special linker type %d",
1260 bfd_get_filename (abfd),
1261 (int)which);
1262
1263 bfd_set_error (bfd_error_bad_value);
1264 return (elf_linker_section_t *)0;
1265
1266 case LINKER_SECTION_GOT: /* .got section */
1267 defaults.name = ".got";
1268 defaults.rel_name = ".rela.got";
1269 defaults.sym_name = "_GLOBAL_OFFSET_TABLE_";
1270 defaults.max_hole_offset = 32764;
1271 defaults.hole_size = 16;
1272 defaults.sym_offset = 4;
1273 break;
1274
3f7ca26b
MM		 1275 case LINKER_SECTION_PLT: /* .plt section */
1276 defaults.name = ".plt";
1277 defaults.rel_name = ".rela.plt";
1278 defaults.sym_name = (char *)0;
1279 defaults.max_hole_offset = 0;
1280 defaults.hole_size = 0;
1281 defaults.sym_offset = 0;
1282 defaults.flags &= ~SEC_LOAD;
1283 break;
1284
3b3753b8
MM		 1285 case LINKER_SECTION_SDATA: /* .sdata/.sbss section */
1286 defaults.name = ".sdata";
1287 defaults.rel_name = ".rela.sdata";
1288 defaults.bss_name = ".sbss";
1289 defaults.sym_name = "_SDA_BASE_";
05f927dd 1290 defaults.sym_offset = 32768;
3b3753b8
MM		 1291 break;
1292
1293 case LINKER_SECTION_SDATA2: /* .sdata2/.sbss2 section */
1294 defaults.name = ".sdata2";
1295 defaults.rel_name = ".rela.sdata2";
1296 defaults.bss_name = ".sbss2";
1297 defaults.sym_name = "_SDA2_BASE_";
05f927dd 1298 defaults.sym_offset = 32768;
3f7ca26b 1299 defaults.flags |= SEC_READONLY;
3b3753b8
MM		 1300 break;
1301 }
1302
1303 lsect = _bfd_elf_create_linker_section (abfd, info, which, &defaults);
1c3a295b
MM		 1304 }
1305
3b3753b8 1306 return lsect;
1c3a295b
MM		 1307}
1308
3f7ca26b
MM		 1309\f
1310/* If we have a non-zero sized .sbss2 or .PPC.EMB.sbss0 sections, we need to bump up
1311 the number of section headers. */
1312
1313static int
1314ppc_elf_additional_program_headers (abfd)
1315 bfd *abfd;
1316{
1317 asection *s;
1318 int ret;
1319
1320 ret = 0;
1321
1322 s = bfd_get_section_by_name (abfd, ".interp");
1323 if (s != NULL)
1324 ++ret;
1325
1326 s = bfd_get_section_by_name (abfd, ".sbss2");
1327 if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0)
1328 ++ret;
1329
1330 s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
1331 if (s != NULL && (s->flags & SEC_LOAD) != 0 && s->_raw_size > 0)
1332 ++ret;
1333
1334 return ret;
1335}
1336
1337/* Modify the segment map if needed */
1338
1339static boolean
1340ppc_elf_modify_segment_map (abfd)
1341 bfd *abfd;
1342{
1343 return true;
1344}
08556813
MM		 1345\f
1346/* Adjust a symbol defined by a dynamic object and referenced by a
1347 regular object. The current definition is in some section of the
1348 dynamic object, but we're not including those sections. We have to
1349 change the definition to something the rest of the link can
1350 understand. */
1351
1352static boolean
1353ppc_elf_adjust_dynamic_symbol (info, h)
1354 struct bfd_link_info *info;
1355 struct elf_link_hash_entry *h;
1356{
3f7ca26b
MM		 1357 bfd *dynobj = elf_hash_table (info)->dynobj;
1358 asection *s;
1359 unsigned int power_of_two;
1360 bfd_vma plt_offset;
1361
08556813 1362#ifdef DEBUG
3f7ca26b 1363 fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", h->root.root.string);
08556813 1364#endif
3f7ca26b
MM		 1365
1366 /* Make sure we know what is going on here. */
1367 BFD_ASSERT (dynobj != NULL
1368 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
1369 || h->weakdef != NULL
1370 || ((h->elf_link_hash_flags
1371 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
1372 && (h->elf_link_hash_flags
1373 & ELF_LINK_HASH_REF_REGULAR) != 0
1374 && (h->elf_link_hash_flags
1375 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
1376
1377
1378 /* If this is a function, put it in the procedure linkage table. We
1379 will fill in the contents of the procedure linkage table later,
1380 when we know the address of the .got section. */
1381 if (h->type == STT_FUNC
1382 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
1383 {
1384 if (! info->shared
1385 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
1386 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)
1387 {
1388 /* This case can occur if we saw a PLT32 reloc in an input
1389 file, but the symbol was never referred to by a dynamic
1390 object. In such a case, we don't actually need to build
1391 a procedure linkage table, and we can just do a PC32
1392 reloc instead. */
1393 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
1394 return true;
1395 }
1396
1397 /* Make sure this symbol is output as a dynamic symbol. */
1398 if (h->dynindx == -1)
1399 {
1400 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
1401 return false;
1402 }
1403
1404 s = bfd_get_section_by_name (dynobj, ".plt");
1405 BFD_ASSERT (s != NULL);
1406
1407 /* If this is the first .plt entry, make room for the special
1408 first entry. */
1409 if (s->_raw_size == 0)
1410 s->_raw_size += PLT_INITIAL_ENTRY_SIZE;
1411
1412 /* The PowerPC PLT is actually composed of two parts, the first part
1413 is 2 words (for a load and a jump), and then there is a remaining
1414 word available at the end. */
1415 plt_offset = (PLT_INITIAL_ENTRY_SIZE
1416 + 8 * ((s->_raw_size - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE));
1417
1418 /* If this symbol is not defined in a regular file, and we are
1419 not generating a shared library, then set the symbol to this
1420 location in the .plt. This is required to make function
1421 pointers compare as equal between the normal executable and
1422 the shared library. */
1423 if (! info->shared
1424 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1425 {
1426 h->root.u.def.section = s;
1427 h->root.u.def.value = plt_offset;
1428 }
1429
1430 h->plt_offset = plt_offset;
1431
1432 /* Make room for this entry. */
1433 s->_raw_size += PLT_ENTRY_SIZE;
1434
1435 /* We also need to make an entry in the .rela.plt section. */
1436
1437 s = bfd_get_section_by_name (dynobj, ".rela.plt");
1438 BFD_ASSERT (s != NULL);
1439 s->_raw_size += sizeof (Elf32_External_Rela);
1440
1441 return true;
1442 }
1443
1444 /* If this is a weak symbol, and there is a real definition, the
1445 processor independent code will have arranged for us to see the
1446 real definition first, and we can just use the same value. */
1447 if (h->weakdef != NULL)
1448 {
1449 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
1450 || h->weakdef->root.type == bfd_link_hash_defweak);
1451 h->root.u.def.section = h->weakdef->root.u.def.section;
1452 h->root.u.def.value = h->weakdef->root.u.def.value;
1453 return true;
1454 }
1455
1456 /* This is a reference to a symbol defined by a dynamic object which
1457 is not a function. */
1458
1459 /* If we are creating a shared library, we must presume that the
1460 only references to the symbol are via the global offset table.
1461 For such cases we need not do anything here; the relocations will
1462 be handled correctly by relocate_section. */
1463 if (info->shared)
1464 return true;
1465
1466 /* We must allocate the symbol in our .dynbss section, which will
1467 become part of the .bss section of the executable. There will be
1468 an entry for this symbol in the .dynsym section. The dynamic
1469 object will contain position independent code, so all references
1470 from the dynamic object to this symbol will go through the global
1471 offset table. The dynamic linker will use the .dynsym entry to
1472 determine the address it must put in the global offset table, so
1473 both the dynamic object and the regular object will refer to the
1474 same memory location for the variable. */
1475
1476 s = bfd_get_section_by_name (dynobj, ".dynbss");
1477 BFD_ASSERT (s != NULL);
1478
1479 /* If the symbol is currently defined in the .bss section of the
1480 dynamic object, then it is OK to simply initialize it to zero.
1481 If the symbol is in some other section, we must generate a
1482 R_386_COPY reloc to tell the dynamic linker to copy the initial
1483 value out of the dynamic object and into the runtime process
1484 image. We need to remember the offset into the .rela.bss section
1485 we are going to use. */
1486 if ((h->root.u.def.section->flags & SEC_LOAD) != 0)
1487 {
1488 asection *srel;
1489
1490 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
1491 BFD_ASSERT (srel != NULL);
1492 srel->_raw_size += sizeof (Elf32_External_Rel);
1493 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
1494 }
1495
1496 /* We need to figure out the alignment required for this symbol. I
1497 have no idea how ELF linkers handle this. */
1498 power_of_two = bfd_log2 (h->size);
1499 if (power_of_two > 3)
1500 power_of_two = 3;
1501
1502 /* Apply the required alignment. */
1503 s->_raw_size = BFD_ALIGN (s->_raw_size,
1504 (bfd_size_type) (1 << power_of_two));
1505 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1506 {
1507 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
1508 return false;
1509 }
1510
1511 /* Define the symbol as being at this point in the section. */
1512 h->root.u.def.section = s;
1513 h->root.u.def.value = s->_raw_size;
1514
1515 /* Increment the section size to make room for the symbol. */
1516 s->_raw_size += h->size;
1517
08556813
MM		 1518 return true;
1519}
1520
1521\f
1522/* Increment the index of a dynamic symbol by a given amount. Called
1523 via elf_link_hash_traverse. */
1524
1525static boolean
1526ppc_elf_adjust_dynindx (h, cparg)
1527 struct elf_link_hash_entry *h;
1528 PTR cparg;
1529{
1530 int *cp = (int *) cparg;
1531
1532#ifdef DEBUG
1533 fprintf (stderr, "ppc_elf_adjust_dynindx called, h->dynindx = %d, *cp = %d\n", h->dynindx, *cp);
1534#endif
1535
1536 if (h->dynindx != -1)
1537 h->dynindx += *cp;
1538
1539 return true;
1540}
1541
1542\f
1543/* Set the sizes of the dynamic sections. */
1544
1545static boolean
1546ppc_elf_size_dynamic_sections (output_bfd, info)
1547 bfd *output_bfd;
1548 struct bfd_link_info *info;
1549{
1550 bfd *dynobj;
1551 asection *s;
3f7ca26b
MM		 1552 boolean plt;
1553 boolean relocs;
08556813 1554 boolean reltext;
08556813
MM		 1555
1556#ifdef DEBUG
1557 fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
1558#endif
1559
1560 dynobj = elf_hash_table (info)->dynobj;
1561 BFD_ASSERT (dynobj != NULL);
1562
1563 if (elf_hash_table (info)->dynamic_sections_created)
1564 {
1565 /* Set the contents of the .interp section to the interpreter. */
1566 if (! info->shared)
1567 {
1568 s = bfd_get_section_by_name (dynobj, ".interp");
1569 BFD_ASSERT (s != NULL);
1570 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
1571 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1572 }
1573
1574 /* Make space for the trailing nop in .plt. */
1575 s = bfd_get_section_by_name (dynobj, ".plt");
1576 BFD_ASSERT (s != NULL);
1577 if (s->_raw_size > 0)
1578 s->_raw_size += 4;
1579 }
1580 else
1581 {
3b3753b8
MM		 1582 /* We may have created entries in the .rela.got, .rela.sdata, and
1583 .rela.sdata2 section2. However, if we are not creating the
1584 dynamic sections, we will not actually use these entries. Reset
1585 the size of .rela.got, et al, which will cause it to get
1586 stripped from the output file below. */
1587 static char *rela_sections[] = { ".rela.got", ".rela.sdata", ".rela.sdata", (char *)0 };
1588 char **p;
1589
1590 for (p = rela_sections; *p != (char *)0; p++)
1591 {
1592 s = bfd_get_section_by_name (dynobj, *p);
1593 if (s != NULL)
1594 s->_raw_size = 0;
1595 }
08556813
MM		 1596 }
1597
1598 /* The check_relocs and adjust_dynamic_symbol entry points have
1599 determined the sizes of the various dynamic sections. Allocate
1600 memory for them. */
3f7ca26b
MM		 1601 plt = false;
1602 relocs = false;
08556813 1603 reltext = false;
08556813
MM		 1604 for (s = dynobj->sections; s != NULL; s = s->next)
1605 {
1606 const char *name;
1607 boolean strip;
1608
1609 if ((s->flags & SEC_IN_MEMORY) == 0)
1610 continue;
1611
1612 /* It's OK to base decisions on the section name, because none
1613 of the dynobj section names depend upon the input files. */
1614 name = bfd_get_section_name (dynobj, s);
1615
1616 strip = false;
1617
3f7ca26b
MM		 1618 if (strcmp (name, ".plt") == 0)
1619 {
1620 if (s->_raw_size == 0)
1621 {
1622 /* Strip this section if we don't need it; see the
1623 comment below. */
1624 strip = true;
1625 }
1626 else
1627 {
1628 /* Remember whether there is a PLT. */
1629 plt = true;
1630 }
1631 }
1632 else if (strncmp (name, ".rela", 5) == 0)
08556813
MM		 1633 {
1634 if (s->_raw_size == 0)
1635 {
1636 /* If we don't need this section, strip it from the
3f7ca26b
MM		 1637 output file. This is mostly to handle .rela.bss and
1638 .rela.plt. We must create both sections in
1639 create_dynamic_sections, because they must be created
08556813
MM		 1640 before the linker maps input sections to output
1641 sections. The linker does that before
1642 adjust_dynamic_symbol is called, and it is that
1643 function which decides whether anything needs to go
1644 into these sections. */
1645 strip = true;
1646 }
1647 else
1648 {
1649 asection *target;
1650
3f7ca26b
MM		 1651 /* Remember whether there are any reloc sections other
1652 than .rel.plt. */
1653 if (strcmp (name, ".rela.plt") != 0)
1654 {
1655 relocs = true;
1656
1657 /* If this relocation section applies to a read only
1658 section, then we probably need a DT_TEXTREL
1659 entry. The entries in the .rel.plt section
1660 really apply to the .got section, which we
1661 created ourselves and so know is not readonly. */
1662 target = bfd_get_section_by_name (output_bfd, name + 4);
1663 if (target != NULL
1664 && (target->flags & SEC_READONLY) != 0)
1665 reltext = true;
1666 }
08556813
MM		 1667
1668 /* We use the reloc_count field as a counter if we need
1669 to copy relocs into the output file. */
1670 s->reloc_count = 0;
1671 }
1672 }
3f7ca26b
MM		 1673 else if (strcmp (name, ".got") != 0
1674 && strcmp (name, ".sdata") != 0
1675 && strcmp (name, ".sdata2") != 0)
08556813
MM		 1676 {
1677 /* It's not one of our sections, so don't allocate space. */
1678 continue;
1679 }
1680
1681 if (strip)
1682 {
1683 asection **spp;
1684
1685 for (spp = &s->output_section->owner->sections;
1686 *spp != s->output_section;
1687 spp = &(*spp)->next)
1688 ;
1689 *spp = s->output_section->next;
1690 --s->output_section->owner->section_count;
1691
1692 continue;
1693 }
1694
1695 /* Allocate memory for the section contents. */
eb82bc60 1696 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
08556813
MM		 1697 if (s->contents == NULL && s->_raw_size != 0)
1698 return false;
1699 }
1700
1701 if (elf_hash_table (info)->dynamic_sections_created)
1702 {
1703 /* Add some entries to the .dynamic section. We fill in the
1704 values later, in ppc_elf_finish_dynamic_sections, but we
1705 must add the entries now so that we get the correct size for
1706 the .dynamic section. The DT_DEBUG entry is filled in by the
1707 dynamic linker and used by the debugger. */
1708 if (! info->shared)
1709 {
1710 if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
1711 return false;
1712 }
1713
3f7ca26b 1714 if (plt)
08556813 1715 {
3f7ca26b
MM		 1716 if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)
1717 || ! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
1718 || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_REL)
08556813
MM		 1719 || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
1720 return false;
1721 }
1722
3f7ca26b
MM		 1723 if (relocs)
1724 {
1725 if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
1726 || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, DT_RELA)
1727 || ! bfd_elf32_add_dynamic_entry (info, DT_RELENT,
1728 sizeof (Elf32_External_Rela)))
1729 return false;
1730 }
08556813
MM		 1731
1732 if (reltext)
1733 {
1734 if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
1735 return false;
1736 }
1737 }
1738
1739 /* If we are generating a shared library, we generate a section
1740 symbol for each output section. These are local symbols, which
1741 means that they must come first in the dynamic symbol table.
1742 That means we must increment the dynamic symbol index of every
1743 other dynamic symbol. */
1744 if (info->shared)
1745 {
1746 int c, i;
1747
1748 c = bfd_count_sections (output_bfd);
1749 elf_link_hash_traverse (elf_hash_table (info),
1750 ppc_elf_adjust_dynindx,
1751 (PTR) &c);
1752 elf_hash_table (info)->dynsymcount += c;
1753
1754 for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++)
1755 {
1756 elf_section_data (s)->dynindx = i;
1757 /* These symbols will have no names, so we don't need to
1758 fiddle with dynstr_index. */
1759 }
1760 }
1761
1762 return true;
1763}
1764
1765\f
1766/* Look through the relocs for a section during the first phase, and
1767 allocate space in the global offset table or procedure linkage
1768 table. */
1769
1770static boolean
1771ppc_elf_check_relocs (abfd, info, sec, relocs)
1772 bfd *abfd;
1773 struct bfd_link_info *info;
1774 asection *sec;
1775 const Elf_Internal_Rela *relocs;
1776{
e25a7988 1777 boolean ret = true;
08556813
MM		 1778 bfd *dynobj;
1779 Elf_Internal_Shdr *symtab_hdr;
1780 struct elf_link_hash_entry **sym_hashes;
08556813
MM		 1781 const Elf_Internal_Rela *rel;
1782 const Elf_Internal_Rela *rel_end;
3b3753b8 1783 elf_linker_section_t *got;
3f7ca26b 1784 elf_linker_section_t *plt;
3b3753b8
MM		 1785 elf_linker_section_t *sdata;
1786 elf_linker_section_t *sdata2;
08556813
MM		 1787 asection *sreloc;
1788
1789 if (info->relocateable)
1790 return true;
1791
1792#ifdef DEBUG
3f7ca26b
MM		 1793 fprintf (stderr, "ppc_elf_check_relocs called for section %s in %s\n",
1794 bfd_get_section_name (abfd, sec),
1795 bfd_get_filename (abfd));
08556813
MM		 1796#endif
1797
3b3753b8
MM		 1798 /* Create the linker generated sections all the time so that the special
1799 symbols are created. */
1800 if ((got = elf_linker_section (abfd, LINKER_SECTION_GOT)) == NULL)
1801 {
1802 got = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_GOT);
1803 if (!got)
e25a7988 1804 ret = false;
3b3753b8
MM		 1805 }
1806
3f7ca26b
MM		 1807#if 0
1808 if ((plt = elf_linker_section (abfd, LINKER_SECTION_PLT)) == NULL)
1809 {
1810 plt = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_PLT);
1811 if (!plt)
e25a7988 1812 ret = false;
3f7ca26b
MM		 1813 }
1814#endif
1815
3b3753b8
MM		 1816 if ((sdata = elf_linker_section (abfd, LINKER_SECTION_SDATA)) == NULL)
1817 {
1818 sdata = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA);
1819 if (!sdata)
e25a7988 1820 ret = false;
3b3753b8
MM		 1821 }
1822
1823
1824 if ((sdata2 = elf_linker_section (abfd, LINKER_SECTION_SDATA2)) == NULL)
1825 {
1826 sdata2 = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA2);
1827 if (!sdata2)
e25a7988 1828 ret = false;
3b3753b8
MM		 1829 }
1830
08556813
MM		 1831 dynobj = elf_hash_table (info)->dynobj;
1832 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1833 sym_hashes = elf_sym_hashes (abfd);
08556813 1834
08556813
MM		 1835 sreloc = NULL;
1836
1837 rel_end = relocs + sec->reloc_count;
1838 for (rel = relocs; rel < rel_end; rel++)
1839 {
1840 unsigned long r_symndx;
1841 struct elf_link_hash_entry *h;
1842
1843 r_symndx = ELF32_R_SYM (rel->r_info);
1844 if (r_symndx < symtab_hdr->sh_info)
1845 h = NULL;
1846 else
1847 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1848
1849 switch (ELF32_R_TYPE (rel->r_info))
1850 {
3b3753b8 1851 /* GOT16 relocations */
08556813
MM		 1852 case R_PPC_GOT16:
1853 case R_PPC_GOT16_LO:
1854 case R_PPC_GOT16_HI:
1855 case R_PPC_GOT16_HA:
3b3753b8
MM		 1856 if (got->rel_section == NULL
1857 && (h != NULL || info->shared)
1858 && !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
e25a7988
MM		 1859 {
1860 ret = false;
1861 break;
1862 }
1c3a295b 1863
3b3753b8 1864 if (!bfd_elf32_create_pointer_linker_section (abfd, info, got, h, rel))
e25a7988 1865 ret = false;
08556813 1866
3b3753b8 1867 break;
08556813 1868
3b3753b8
MM		 1869 /* Indirect .sdata relocation */
1870 case R_PPC_EMB_SDAI16:
e25a7988
MM		 1871 if (info->shared)
1872 {
1873 (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
1874 bfd_get_filename (abfd),
1875 "R_PPC_EMB_SDAI16");
1876 ret = false;
1877 break;
1878 }
1879
3b3753b8
MM		 1880 if (got->rel_section == NULL
1881 && (h != NULL || info->shared)
1882 && !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
e25a7988
MM		 1883 {
1884 ret = false;
1885 break;
1886 }
08556813 1887
3b3753b8 1888 if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata, h, rel))
e25a7988 1889 ret = false;
08556813 1890
3b3753b8 1891 break;
08556813 1892
3b3753b8
MM		 1893 /* Indirect .sdata2 relocation */
1894 case R_PPC_EMB_SDA2I16:
e25a7988
MM		 1895 if (info->shared)
1896 {
1897 (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
1898 bfd_get_filename (abfd),
1899 "R_PPC_EMB_SDA2I16");
1900 ret = false;
1901 break;
1902 }
1903
3b3753b8
MM		 1904 if (got->rel_section == NULL
1905 && (h != NULL || info->shared)
1906 && !_bfd_elf_make_linker_section_rela (dynobj, got, 2))
1907 return false;
08556813 1908
3b3753b8
MM		 1909 if (!bfd_elf32_create_pointer_linker_section (abfd, info, sdata2, h, rel))
1910 return false;
08556813
MM		 1911
1912 break;
1913
e25a7988
MM		 1914 case R_PPC_SDAREL16:
1915 case R_PPC_EMB_SDA2REL:
1916 case R_PPC_EMB_SDA21:
1917 if (info->shared)
1918 {
1919 (*_bfd_error_handler) ("%s: relocation %s cannot be used when making a shared object",
1920 bfd_get_filename (abfd),
1921 ppc_elf_howto_table[(int)ELF32_R_TYPE (rel->r_info)]->name);
1922 ret = false;
1923 }
1924 break;
1925
08556813
MM		 1926 case R_PPC_PLT32:
1927 case R_PPC_PLTREL24:
1928 case R_PPC_PLT16_LO:
1929 case R_PPC_PLT16_HI:
1930 case R_PPC_PLT16_HA:
1931#ifdef DEBUG
1932 fprintf (stderr, "Reloc requires a PLT entry\n");
1933#endif
1934 /* This symbol requires a procedure linkage table entry. We
1935 actually build the entry in adjust_dynamic_symbol,
1936 because this might be a case of linking PIC code without
1937 linking in any dynamic objects, in which case we don't
1938 need to generate a procedure linkage table after all. */
1939
1940 if (h == NULL)
1941 {
1942 /* It does not make sense to have a procedure linkage
1943 table entry for a local symbol. */
1944 bfd_set_error (bfd_error_bad_value);
e25a7988
MM		 1945 ret = false;
1946 break;
08556813
MM		 1947 }
1948
1949 /* Make sure this symbol is output as a dynamic symbol. */
1950 if (h->dynindx == -1)
1951 {
1952 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
e25a7988
MM		 1953 {
1954 ret = false;
1955 break;
1956 }
08556813
MM		 1957 }
1958
1959 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
1960 break;
1961
e25a7988
MM		 1962 /* the following relocations don't need to propigate the relocation if
1963 linking a shared object since they are section relative. */
1964 case R_PPC_SECTOFF:
1965 case R_PPC_SECTOFF_LO:
1966 case R_PPC_SECTOFF_HI:
1967 case R_PPC_SECTOFF_HA:
1968 break;
1969
1970 /* When creating a shared object, we must copy these
1971 relocs into the output file. We create a reloc
1972 section in dynobj and make room for the reloc. */
1973 case R_PPC_REL24:
08556813
MM		 1974 if (h != NULL
1975 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1976 break;
0293d5b0 1977 /* fall through */
e25a7988
MM		 1978
1979 case R_PPC_REL14:
1980 case R_PPC_REL14_BRTAKEN:
1981 case R_PPC_REL14_BRNTAKEN:
08556813
MM		 1982 if (h == NULL)
1983 break;
0293d5b0 1984 /* fall through */
e25a7988
MM		 1985
1986 default:
08556813
MM		 1987 if (info->shared
1988 && (sec->flags & SEC_ALLOC) != 0)
1989 {
08556813
MM		 1990 if (sreloc == NULL)
1991 {
1992 const char *name;
1993
1994 name = (bfd_elf_string_from_elf_section
1995 (abfd,
1996 elf_elfheader (abfd)->e_shstrndx,
1997 elf_section_data (sec)->rel_hdr.sh_name));
1998 if (name == NULL)
e25a7988
MM		 1999 {
2000 ret = false;
2001 break;
2002 }
08556813
MM		 2003
2004 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2005 && strcmp (bfd_get_section_name (abfd, sec),
2006 name + 5) == 0);
2007
2008 sreloc = bfd_get_section_by_name (dynobj, name);
2009 if (sreloc == NULL)
2010 {
2011 sreloc = bfd_make_section (dynobj, name);
2012 if (sreloc == NULL
2013 || ! bfd_set_section_flags (dynobj, sreloc,
2014 (SEC_ALLOC
2015 | SEC_LOAD
2016 | SEC_HAS_CONTENTS
2017 | SEC_IN_MEMORY
2018 | SEC_READONLY))
2019 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
e25a7988
MM		 2020 {
2021 ret = false;
2022 break;
2023 }
08556813
MM		 2024 }
2025 }
2026
2027 sreloc->_raw_size += sizeof (Elf32_External_Rela);
2028 }
2029
2030 break;
08556813
MM		 2031 }
2032 }
2033
e25a7988 2034 return ret;
08556813
MM		 2035}
2036
9d621c7d
MM		 2037\f
2038/* Hook called by the linker routine which adds symbols from an object
2039 file. We use it to put .comm items in .sbss, and not .bss. */
2040
2041/*ARGSUSED*/
2042static boolean
2043ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
2044 bfd *abfd;
2045 struct bfd_link_info *info;
2046 const Elf_Internal_Sym *sym;
2047 const char **namep;
2048 flagword *flagsp;
2049 asection **secp;
2050 bfd_vma *valp;
2051{
0293d5b0 2052 if (sym->st_shndx == SHN_COMMON && !info->relocateable && sym->st_size <= bfd_get_gp_size (abfd))
9d621c7d 2053 {
eb82bc60 2054 /* Common symbols less than or equal to -G nn bytes are automatically
9d621c7d 2055 put into .sdata. */
3f7ca26b 2056 elf_linker_section_t *sdata = ppc_elf_create_linker_section (abfd, info, LINKER_SECTION_SDATA);
9d621c7d 2057 if (!sdata->bss_section)
3f7ca26b
MM		 2058 {
2059 sdata->bss_section = bfd_make_section (elf_hash_table (info)->dynobj, sdata->bss_name);
2060 sdata->bss_section->flags = (sdata->bss_section->flags & ~SEC_LOAD) | SEC_IS_COMMON;
2061 }
2062
9d621c7d 2063 *secp = sdata->bss_section;
9d621c7d
MM		 2064 *valp = sym->st_size;
2065 }
2066
2067 return true;
2068}
2069
08556813
MM		 2070\f
2071/* Finish up dynamic symbol handling. We set the contents of various
2072 dynamic sections here. */
2073
2074static boolean
2075ppc_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
2076 bfd *output_bfd;
2077 struct bfd_link_info *info;
2078 struct elf_link_hash_entry *h;
2079 Elf_Internal_Sym *sym;
2080{
2081 bfd *dynobj;
2082
2083#ifdef DEBUG
3f7ca26b 2084 fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", h->root.root.string);
08556813
MM		 2085#endif
2086
2087 dynobj = elf_hash_table (info)->dynobj;
3b3753b8 2088 BFD_ASSERT (dynobj != NULL);
08556813
MM		 2089
2090 if (h->plt_offset != (bfd_vma) -1)
2091 {
2092 asection *splt;
2093 asection *srela;
2094 Elf_Internal_Rela rela;
2095
3f7ca26b
MM		 2096#ifdef DEBUG
2097 fprintf (stderr, ", plt_offset = %d", h->plt_offset);
2098#endif
2099
08556813
MM		 2100 /* This symbol has an entry in the procedure linkage table. Set
2101 it up. */
2102
2103 BFD_ASSERT (h->dynindx != -1);
2104
2105 splt = bfd_get_section_by_name (dynobj, ".plt");
2106 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
2107 BFD_ASSERT (splt != NULL && srela != NULL);
2108
3f7ca26b
MM		 2109 /* We don't need to fill in the .plt. The solaris dynamic linker will
2110 fill it in. */
08556813
MM		 2111
2112 /* Fill in the entry in the .rela.plt section. */
2113 rela.r_offset = (splt->output_section->vma
2114 + splt->output_offset
2115 + h->plt_offset);
3f7ca26b 2116 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
08556813
MM		 2117 rela.r_addend = 0;
2118 bfd_elf32_swap_reloca_out (output_bfd, &rela,
2119 ((Elf32_External_Rela *) srela->contents
3f7ca26b 2120 + ((h->plt_offset - PLT_INITIAL_ENTRY_SIZE) / 8)));
08556813
MM		 2121
2122 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
2123 {
2124 /* Mark the symbol as undefined, rather than as defined in
2125 the .plt section. Leave the value alone. */
2126 sym->st_shndx = SHN_UNDEF;
2127 }
2128 }
2129
08556813
MM		 2130 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
2131 {
2132 asection *s;
2133 Elf_Internal_Rela rela;
2134
2135 /* This symbols needs a copy reloc. Set it up. */
2136
3f7ca26b
MM		 2137#ifdef DEBUG
2138 fprintf (stderr, ", copy");
2139#endif
2140
08556813
MM		 2141 BFD_ASSERT (h->dynindx != -1);
2142
2143 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2144 ".rela.bss");
2145 BFD_ASSERT (s != NULL);
2146
2147 rela.r_offset = (h->root.u.def.value
2148 + h->root.u.def.section->output_section->vma
2149 + h->root.u.def.section->output_offset);
2150 rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
2151 rela.r_addend = 0;
2152 bfd_elf32_swap_reloca_out (output_bfd, &rela,
2153 ((Elf32_External_Rela *) s->contents
2154 + s->reloc_count));
2155 ++s->reloc_count;
2156 }
2157
3f7ca26b
MM		 2158#ifdef DEBUG
2159 fprintf (stderr, "\n");
2160#endif
2161
08556813
MM		 2162 /* Mark some specially defined symbols as absolute. */
2163 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2164 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
2165 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
2166 sym->st_shndx = SHN_ABS;
2167
2168 return true;
2169}
2170
2171\f
2172/* Finish up the dynamic sections. */
2173
2174static boolean
2175ppc_elf_finish_dynamic_sections (output_bfd, info)
2176 bfd *output_bfd;
2177 struct bfd_link_info *info;
2178{
08556813 2179 asection *sdyn;
3b3753b8
MM		 2180 bfd *dynobj = elf_hash_table (info)->dynobj;
2181 elf_linker_section_t *got = elf_linker_section (dynobj, LINKER_SECTION_GOT);
08556813
MM		 2182
2183#ifdef DEBUG
2184 fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
2185#endif
2186
08556813
MM		 2187 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2188
2189 if (elf_hash_table (info)->dynamic_sections_created)
2190 {
2191 asection *splt;
2192 Elf32_External_Dyn *dyncon, *dynconend;
2193
2194 splt = bfd_get_section_by_name (dynobj, ".plt");
2195 BFD_ASSERT (splt != NULL && sdyn != NULL);
2196
2197 dyncon = (Elf32_External_Dyn *) sdyn->contents;
2198 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
2199 for (; dyncon < dynconend; dyncon++)
2200 {
2201 Elf_Internal_Dyn dyn;
2202 const char *name;
2203 boolean size;
2204
2205 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2206
2207 switch (dyn.d_tag)
2208 {
3f7ca26b
MM		 2209 case DT_PLTGOT: name = ".plt"; size = false; break;
2210 case DT_PLTRELSZ: name = ".rela.plt"; size = true; break;
08556813 2211 case DT_JMPREL: name = ".rela.plt"; size = false; break;
3f7ca26b 2212 default: name = NULL; size = false; break;
08556813
MM		 2213 }
2214
2215 if (name != NULL)
2216 {
2217 asection *s;
2218
2219 s = bfd_get_section_by_name (output_bfd, name);
2220 if (s == NULL)
2221 dyn.d_un.d_val = 0;
2222 else
2223 {
2224 if (! size)
2225 dyn.d_un.d_ptr = s->vma;
2226 else
2227 {
2228 if (s->_cooked_size != 0)
2229 dyn.d_un.d_val = s->_cooked_size;
2230 else
2231 dyn.d_un.d_val = s->_raw_size;
2232 }
2233 }
2234 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2235 }
2236 }
08556813
MM		 2237 }
2238
3b3753b8
MM		 2239 /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 so that a function can
2240 easily find the address of the _GLOBAL_OFFSET_TABLE_. */
2241 if (got)
08556813 2242 {
3b3753b8
MM		 2243 unsigned char *contents = got->section->contents + got->hole_offset;
2244 bfd_put_32 (output_bfd, 0x4e800021 /* blrl */, contents);
2245
08556813 2246 if (sdyn == NULL)
3b3753b8 2247 bfd_put_32 (output_bfd, (bfd_vma) 0, contents+4);
08556813
MM		 2248 else
2249 bfd_put_32 (output_bfd,
2250 sdyn->output_section->vma + sdyn->output_offset,
3b3753b8 2251 contents+4);
08556813 2252
3b3753b8
MM		 2253 elf_section_data (got->section->output_section)->this_hdr.sh_entsize = 4;
2254 }
08556813
MM		 2255
2256 if (info->shared)
2257 {
2258 asection *sdynsym;
2259 asection *s;
2260 Elf_Internal_Sym sym;
2261
2262 /* Set up the section symbols for the output sections. */
2263
2264 sdynsym = bfd_get_section_by_name (dynobj, ".dynsym");
2265 BFD_ASSERT (sdynsym != NULL);
2266
2267 sym.st_size = 0;
2268 sym.st_name = 0;
2269 sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
2270 sym.st_other = 0;
2271
2272 for (s = output_bfd->sections; s != NULL; s = s->next)
2273 {
2274 int indx;
2275
2276 sym.st_value = s->vma;
2277
2278 indx = elf_section_data (s)->this_idx;
2279 BFD_ASSERT (indx > 0);
2280 sym.st_shndx = indx;
2281
2282 bfd_elf32_swap_symbol_out (output_bfd, &sym,
2283 (PTR) (((Elf32_External_Sym *)
2284 sdynsym->contents)
2285 + elf_section_data (s)->dynindx));
2286 }
2287
2288 /* Set the sh_info field of the output .dynsym section to the
2289 index of the first global symbol. */
2290 elf_section_data (sdynsym->output_section)->this_hdr.sh_info =
2291 bfd_count_sections (output_bfd) + 1;
2292 }
2293
2294 return true;
2295}
2296
ede4eed4
KR		 2297\f
2298/* The RELOCATE_SECTION function is called by the ELF backend linker
2299 to handle the relocations for a section.
bcbe2c71 2300
ede4eed4
KR		 2301 The relocs are always passed as Rela structures; if the section
2302 actually uses Rel structures, the r_addend field will always be
2303 zero.
bcbe2c71 2304
ede4eed4
KR		 2305 This function is responsible for adjust the section contents as
2306 necessary, and (if using Rela relocs and generating a
2307 relocateable output file) adjusting the reloc addend as
2308 necessary.
bcbe2c71 2309
ede4eed4
KR		 2310 This function does not have to worry about setting the reloc
2311 address or the reloc symbol index.
2312
2313 LOCAL_SYMS is a pointer to the swapped in local symbols.
2314
2315 LOCAL_SECTIONS is an array giving the section in the input file
2316 corresponding to the st_shndx field of each local symbol.
2317
2318 The global hash table entry for the global symbols can be found
2319 via elf_sym_hashes (input_bfd).
2320
2321 When generating relocateable output, this function must handle
2322 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2323 going to be the section symbol corresponding to the output
2324 section, which means that the addend must be adjusted
2325 accordingly. */
2326
2327static boolean
2328ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
2329 contents, relocs, local_syms, local_sections)
2330 bfd *output_bfd;
2331 struct bfd_link_info *info;
2332 bfd *input_bfd;
2333 asection *input_section;
2334 bfd_byte *contents;
2335 Elf_Internal_Rela *relocs;
2336 Elf_Internal_Sym *local_syms;
2337 asection **local_sections;
bcbe2c71 2338{
08556813 2339 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
ede4eed4 2340 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
08556813 2341 bfd *dynobj = elf_hash_table (info)->dynobj;
3f7ca26b
MM		 2342 elf_linker_section_t *got = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_GOT) : NULL;
2343 elf_linker_section_t *sdata = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_SDATA) : NULL;
2344 elf_linker_section_t *sdata2 = (dynobj) ? elf_linker_section (dynobj, LINKER_SECTION_SDATA2) : NULL;
07a159db
MM		 2345 Elf_Internal_Rela *rel = relocs;
2346 Elf_Internal_Rela *relend = relocs + input_section->reloc_count;
2347 boolean ret = true;
08556813 2348 long insn;
ede4eed4
KR		 2349
2350#ifdef DEBUG
2351 fprintf (stderr, "ppc_elf_relocate_section called for %s section %s, %ld relocations%s\n",
2352 bfd_get_filename (input_bfd),
2353 bfd_section_name(input_bfd, input_section),
2354 (long)input_section->reloc_count,
2355 (info->relocateable) ? " (relocatable)" : "");
2356#endif
2357
2358 if (!ppc_elf_howto_table[ R_PPC_ADDR32 ]) /* Initialize howto table if needed */
2359 ppc_elf_howto_init ();
bcbe2c71 2360
ede4eed4 2361 for (; rel < relend; rel++)
bcbe2c71 2362 {
07a159db
MM		 2363 enum ppc_reloc_type r_type = (enum ppc_reloc_type)ELF32_R_TYPE (rel->r_info);
2364 bfd_vma offset = rel->r_offset;
2365 bfd_vma addend = rel->r_addend;
2366 bfd_reloc_status_type r = bfd_reloc_other;
2367 Elf_Internal_Sym *sym = (Elf_Internal_Sym *)0;
2368 asection *sec = (asection *)0;
2369 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *)0;
c1e65e24 2370 const char *sym_name = (const char *)0;
ede4eed4
KR		 2371 reloc_howto_type *howto;
2372 unsigned long r_symndx;
2373 bfd_vma relocation;
2374
2375 /* Unknown relocation handling */
2376 if ((unsigned)r_type >= (unsigned)R_PPC_max || !ppc_elf_howto_table[(int)r_type])
2377 {
1c3a295b
MM		 2378 (*_bfd_error_handler) ("%s: unknown relocation type %d",
2379 bfd_get_filename (input_bfd),
2380 (int)r_type);
ede4eed4
KR		 2381
2382 bfd_set_error (bfd_error_bad_value);
2383 ret = false;
2384 continue;
2385 }
2386
2387 howto = ppc_elf_howto_table[(int)r_type];
2388 r_symndx = ELF32_R_SYM (rel->r_info);
2389
2390 if (info->relocateable)
2391 {
2392 /* This is a relocateable link. We don't have to change
2393 anything, unless the reloc is against a section symbol,
2394 in which case we have to adjust according to where the
2395 section symbol winds up in the output section. */
2396 if (r_symndx < symtab_hdr->sh_info)
2397 {
2398 sym = local_syms + r_symndx;
2399 if ((unsigned)ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2400 {
2401 sec = local_sections[r_symndx];
2402 addend = rel->r_addend += sec->output_offset + sym->st_value;
2403 }
2404 }
2405
2406#ifdef DEBUG
2407 fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",
2408 howto->name,
2409 (int)r_type,
2410 r_symndx,
2411 (long)offset,
2412 (long)addend);
2413#endif
2414 continue;
2415 }
2416
2417 /* This is a final link. */
ede4eed4
KR		 2418 if (r_symndx < symtab_hdr->sh_info)
2419 {
2420 sym = local_syms + r_symndx;
2421 sec = local_sections[r_symndx];
c1e65e24
MM		 2422 sym_name = "<local symbol>";
2423
ede4eed4
KR		 2424 relocation = (sec->output_section->vma
2425 + sec->output_offset
2426 + sym->st_value);
2427 }
2428 else
2429 {
2430 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
cf5138e3
ILT		 2431 while (h->root.type == bfd_link_hash_indirect
2432 || h->root.type == bfd_link_hash_warning)
2433 h = (struct elf_link_hash_entry *) h->root.u.i.link;
c1e65e24 2434 sym_name = h->root.root.string;
ede4eed4
KR		 2435 if (h->root.type == bfd_link_hash_defined
2436 || h->root.type == bfd_link_hash_defweak)
2437 {
2438 sec = h->root.u.def.section;
3f7ca26b
MM		 2439 if (!sec || !sec->output_section)
2440 {
2441 (*_bfd_error_handler) ("%s: Section in shared library for symbol %s\n",
2442 bfd_get_filename (input_bfd),
2443 sym_name);
2444 relocation = 0;
2445 }
2446 else
2447 relocation = (h->root.u.def.value
2448 + sec->output_section->vma
2449 + sec->output_offset);
ede4eed4
KR		 2450 }
2451 else if (h->root.type == bfd_link_hash_undefweak)
2452 relocation = 0;
2453 else if (info->shared)
2454 relocation = 0;
2455 else
2456 {
2457 (*info->callbacks->undefined_symbol)(info,
2458 h->root.root.string,
2459 input_bfd,
2460 input_section,
2461 rel->r_offset);
2462 ret = false;
2463 continue;
2464 }
2465 }
2466
2467 switch ((int)r_type)
2468 {
2469 default:
c1e65e24 2470 (*_bfd_error_handler) ("%s: unknown relocation type %d for symbol %s",
1c3a295b 2471 bfd_get_filename (input_bfd),
c1e65e24 2472 (int)r_type, sym_name);
1c3a295b
MM		 2473
2474 bfd_set_error (bfd_error_bad_value);
2475 ret = false;
2476 continue;
2477
3b3753b8
MM		 2478 /* relocations that need no special processing */
2479 case (int)R_PPC_NONE:
2480 case (int)R_PPC_ADDR32:
2481 case (int)R_PPC_ADDR24:
2482 case (int)R_PPC_ADDR16:
2483 case (int)R_PPC_ADDR16_LO:
2484 case (int)R_PPC_ADDR16_HI:
2485 case (int)R_PPC_ADDR14:
2486 case (int)R_PPC_REL24:
2487 case (int)R_PPC_REL14:
2488 case (int)R_PPC_UADDR32:
2489 case (int)R_PPC_UADDR16:
2490 case (int)R_PPC_REL32:
ede4eed4
KR		 2491 break;
2492
3b3753b8
MM		 2493 /* branch taken prediction relocations */
2494 case (int)R_PPC_ADDR14_BRTAKEN:
08556813 2495 case (int)R_PPC_REL14_BRTAKEN:
07a159db
MM		 2496 insn = bfd_get_32 (output_bfd, contents + offset);
2497 if ((relocation - offset) & 0x8000)
2498 insn &= ~BRANCH_PREDICT_BIT;
2499 else
2500 insn |= BRANCH_PREDICT_BIT;
2501 bfd_put_32 (output_bfd, insn, contents + offset);
2502 break;
2503
3b3753b8
MM		 2504 /* branch not taken predicition relocations */
2505 case (int)R_PPC_ADDR14_BRNTAKEN:
08556813 2506 case (int)R_PPC_REL14_BRNTAKEN:
08556813 2507 insn = bfd_get_32 (output_bfd, contents + offset);
07a159db
MM		 2508 if ((relocation - offset) & 0x8000)
2509 insn |= BRANCH_PREDICT_BIT;
2510 else
2511 insn &= ~BRANCH_PREDICT_BIT;
08556813
MM		 2512 bfd_put_32 (output_bfd, insn, contents + offset);
2513 break;
2514
3b3753b8
MM		 2515 /* GOT16 relocations */
2516 case (int)R_PPC_GOT16:
ede4eed4
KR		 2517 case (int)R_PPC_GOT16_LO:
2518 case (int)R_PPC_GOT16_HI:
1c3a295b 2519 case (int)R_PPC_GOT16_HA:
3b3753b8
MM		 2520 relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
2521 got, h, relocation, rel,
2522 R_PPC_RELATIVE);
2523 break;
07a159db 2524
3b3753b8
MM		 2525 /* Indirect .sdata relocation */
2526 case (int)R_PPC_EMB_SDAI16:
2527 BFD_ASSERT (sdata != NULL);
2528 relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
2529 sdata, h, relocation, rel,
2530 R_PPC_RELATIVE);
2531 break;
07a159db 2532
3b3753b8
MM		 2533 /* Indirect .sdata2 relocation */
2534 case (int)R_PPC_EMB_SDA2I16:
2535 BFD_ASSERT (sdata2 != NULL);
2536 relocation = bfd_elf32_finish_pointer_linker_section (output_bfd, input_bfd, info,
2537 sdata2, h, relocation, rel,
2538 R_PPC_RELATIVE);
ede4eed4
KR		 2539 break;
2540
07a159db
MM		 2541 /* Handle the TOC16 reloc. We want to use the offset within the .got
2542 section, not the actual VMA. This is appropriate when generating
2543 an embedded ELF object, for which the .got section acts like the
2544 AIX .toc section. */
08556813
MM		 2545 case (int)R_PPC_TOC16: /* phony GOT16 relocations */
2546 BFD_ASSERT (sec != (asection *)0);
07a159db
MM		 2547 BFD_ASSERT (bfd_is_und_section (sec)
2548 || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0
bd2d10c0 2549 || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0)
07a159db 2550
eb82bc60 2551 addend -= sec->output_section->vma + sec->output_offset + 0x8000;
08556813
MM		 2552 break;
2553
3b3753b8
MM		 2554 /* arithmetic adjust relocations */
2555 case (int)R_PPC_ADDR16_HA:
ede4eed4 2556 BFD_ASSERT (sec != (asection *)0);
07a159db 2557 addend += ((relocation + addend) & 0x8000) << 1;
ede4eed4 2558 break;
1c3a295b 2559
3b3753b8
MM		 2560 /* relocate against _SDA_BASE_ */
2561 case (int)R_PPC_SDAREL16:
bd2d10c0
MM		 2562 BFD_ASSERT (sec != (asection *)0);
2563 if (strcmp (bfd_get_section_name (abfd, sec), ".sdata") != 0
2564 && strcmp (bfd_get_section_name (abfd, sec), ".sbss") != 0)
2565 {
c1e65e24 2566 (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
bd2d10c0 2567 bfd_get_filename (input_bfd),
c1e65e24 2568 sym_name,
3b3753b8 2569 ppc_elf_howto_table[ (int)r_type ]->name,
bd2d10c0
MM		 2570 bfd_get_section_name (abfd, sec));
2571
2572 bfd_set_error (bfd_error_bad_value);
2573 ret = false;
2574 continue;
2575 }
9d621c7d 2576 addend -= (sdata->sym_hash->root.u.def.value
eb82bc60
MM		 2577 + sdata->sym_hash->root.u.def.section->output_section->vma
2578 + sdata->sym_hash->root.u.def.section->output_offset);
3b3753b8 2579 break;
bd2d10c0 2580
05f927dd 2581
3b3753b8
MM		 2582 /* relocate against _SDA2_BASE_ */
2583 case (int)R_PPC_EMB_SDA2REL:
bd2d10c0
MM		 2584 BFD_ASSERT (sec != (asection *)0);
2585 if (strcmp (bfd_get_section_name (abfd, sec), ".sdata2") != 0
2586 && strcmp (bfd_get_section_name (abfd, sec), ".sbss2") != 0)
2587 {
c1e65e24 2588 (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
bd2d10c0 2589 bfd_get_filename (input_bfd),
c1e65e24 2590 sym_name,
3b3753b8 2591 ppc_elf_howto_table[ (int)r_type ]->name,
bd2d10c0
MM		 2592 bfd_get_section_name (abfd, sec));
2593
2594 bfd_set_error (bfd_error_bad_value);
2595 ret = false;
2596 continue;
2597 }
9d621c7d 2598 addend -= (sdata2->sym_hash->root.u.def.value
eb82bc60
MM		 2599 + sdata2->sym_hash->root.u.def.section->output_section->vma
2600 + sdata2->sym_hash->root.u.def.section->output_offset);
3b3753b8 2601 break;
bd2d10c0
MM		 2602
2603
3b3753b8
MM		 2604 /* relocate against either _SDA_BASE_, _SDA2_BASE_, or 0 */
2605 case (int)R_PPC_EMB_SDA21:
2606 case (int)R_PPC_EMB_RELSDA:
2607 {
2608 const char *name = bfd_get_section_name (abfd, sec);
2609 int reg;
2610
2611 BFD_ASSERT (sec != (asection *)0);
2612 if (strcmp (name, ".sdata") == 0 || strcmp (name, ".sbss") == 0)
2613 {
2614 reg = 13;
9d621c7d 2615 addend -= (sdata->sym_hash->root.u.def.value
eb82bc60
MM		 2616 + sdata->sym_hash->root.u.def.section->output_section->vma
2617 + sdata->sym_hash->root.u.def.section->output_offset);
3b3753b8
MM		 2618 }
2619
2620 else if (strcmp (name, ".sdata2") == 0 || strcmp (name, ".sbss2") == 0)
2621 {
2622 reg = 2;
9d621c7d 2623 addend -= (sdata2->sym_hash->root.u.def.value
eb82bc60
MM		 2624 + sdata2->sym_hash->root.u.def.section->output_section->vma
2625 + sdata2->sym_hash->root.u.def.section->output_offset);
3b3753b8
MM		 2626 }
2627
2628 else if (strcmp (name, ".PPC.EMB.sdata0") == 0 || strcmp (name, ".PPC.EMB.sbss0") == 0)
2629 {
2630 reg = 0;
2631 }
2632
2633 else
2634 {
c1e65e24 2635 (*_bfd_error_handler) ("%s: The target (%s) of a %s relocation is in the wrong section (%s)",
3b3753b8 2636 bfd_get_filename (input_bfd),
c1e65e24 2637 sym_name,
3b3753b8
MM		 2638 ppc_elf_howto_table[ (int)r_type ]->name,
2639 bfd_get_section_name (abfd, sec));
2640
2641 bfd_set_error (bfd_error_bad_value);
2642 ret = false;
2643 continue;
2644 }
d8fd85ad
MM		 2645
2646 if (r_type == R_PPC_EMB_SDA21)
2647 { /* fill in register field */
cf5138e3 2648 insn = bfd_get_32 (output_bfd, contents + offset);
d8fd85ad 2649 insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
cf5138e3 2650 bfd_put_32 (output_bfd, insn, contents + offset);
d8fd85ad 2651 }
3b3753b8 2652 }
d8fd85ad 2653 break;
3b3753b8 2654
eb82bc60
MM		 2655 /* Relocate against the beginning of the section */
2656 case (int)R_PPC_SECTOFF:
2657 case (int)R_PPC_SECTOFF_LO:
2658 case (int)R_PPC_SECTOFF_HI:
2659 BFD_ASSERT (sec != (asection *)0);
2660 addend -= sec->output_section->vma;
2661 break;
2662
2663 case (int)R_PPC_SECTOFF_HA:
2664 BFD_ASSERT (sec != (asection *)0);
2665 addend -= sec->output_section->vma;
2666 addend += ((relocation + addend) & 0x8000) << 1;
2667 break;
2668
2669 /* Negative relocations */
2670 case (int)R_PPC_EMB_NADDR32:
2671 case (int)R_PPC_EMB_NADDR16:
2672 case (int)R_PPC_EMB_NADDR16_LO:
2673 case (int)R_PPC_EMB_NADDR16_HI:
2674 addend -= 2*relocation;
2675 break;
2676
2677 case (int)R_PPC_EMB_NADDR16_HA:
2678 addend -= 2*relocation;
2679 addend += ((relocation + addend) & 0x8000) << 1;
2680 break;
2681
2682 /* NOP relocation that prevents garbage collecting linkers from omitting a
2683 reference. */
2684 case (int)R_PPC_EMB_MRKREF:
2685 continue;
2686
3b3753b8
MM		 2687 case (int)R_PPC_PLTREL24:
2688 case (int)R_PPC_COPY:
2689 case (int)R_PPC_GLOB_DAT:
2690 case (int)R_PPC_JMP_SLOT:
2691 case (int)R_PPC_RELATIVE:
2692 case (int)R_PPC_LOCAL24PC:
2693 case (int)R_PPC_PLT32:
2694 case (int)R_PPC_PLTREL32:
2695 case (int)R_PPC_PLT16_LO:
2696 case (int)R_PPC_PLT16_HI:
2697 case (int)R_PPC_PLT16_HA:
3b3753b8
MM		 2698 case (int)R_PPC_EMB_RELSEC16:
2699 case (int)R_PPC_EMB_RELST_LO:
2700 case (int)R_PPC_EMB_RELST_HI:
2701 case (int)R_PPC_EMB_RELST_HA:
2702 case (int)R_PPC_EMB_BIT_FLD:
c1e65e24 2703 (*_bfd_error_handler) ("%s: Relocation %s is not yet supported for symbol %s.",
1c3a295b 2704 bfd_get_filename (input_bfd),
c1e65e24
MM		 2705 ppc_elf_howto_table[ (int)r_type ]->name,
2706 sym_name);
1c3a295b 2707
3b3753b8 2708 bfd_set_error (bfd_error_invalid_operation);
1c3a295b
MM		 2709 ret = false;
2710 continue;
ede4eed4
KR		 2711 }
2712
2713
2714#ifdef DEBUG
c1e65e24 2715 fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, offset = %ld, addend = %ld\n",
ede4eed4
KR		 2716 howto->name,
2717 (int)r_type,
c1e65e24 2718 sym_name,
ede4eed4
KR		 2719 r_symndx,
2720 (long)offset,
2721 (long)addend);
2722#endif
2723
2724 r = _bfd_final_link_relocate (howto,
2725 input_bfd,
2726 input_section,
2727 contents,
2728 offset,
2729 relocation,
2730 addend);
2731
2732 if (r != bfd_reloc_ok)
2733 {
2734 ret = false;
2735 switch (r)
2736 {
2737 default:
2738 break;
2739
2740 case bfd_reloc_overflow:
2741 {
2742 const char *name;
2743
2744 if (h != NULL)
2745 name = h->root.root.string;
2746 else
2747 {
2748 name = bfd_elf_string_from_elf_section (input_bfd,
2749 symtab_hdr->sh_link,
2750 sym->st_name);
2751 if (name == NULL)
2752 break;
2753
2754 if (*name == '\0')
2755 name = bfd_section_name (input_bfd, sec);
2756 }
2757
2758 (*info->callbacks->reloc_overflow)(info,
2759 name,
2760 howto->name,
2761 (bfd_vma) 0,
2762 input_bfd,
2763 input_section,
2764 offset);
2765 }
2766 break;
2767
2768 }
2769 }
bcbe2c71
MM		 2770 }
2771
bcbe2c71 2772
ede4eed4
KR		 2773#ifdef DEBUG
2774 fprintf (stderr, "\n");
2775#endif
bcbe2c71 2776
ede4eed4 2777 return ret;
bcbe2c71
MM		 2778}
2779
57081126 2780\f
ede4eed4
KR		 2781#define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec
2782#define TARGET_LITTLE_NAME "elf32-powerpcle"
bcbe2c71
MM		 2783#define TARGET_BIG_SYM bfd_elf32_powerpc_vec
2784#define TARGET_BIG_NAME "elf32-powerpc"
2785#define ELF_ARCH bfd_arch_powerpc
2786#define ELF_MACHINE_CODE EM_PPC
2787#define ELF_MAXPAGESIZE 0x10000
ede4eed4 2788#define elf_info_to_howto ppc_elf_info_to_howto
bcbe2c71
MM		 2789
2790#ifdef EM_CYGNUS_POWERPC
2791#define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC
2792#endif
2793
2794#ifdef EM_PPC_OLD
2795#define ELF_MACHINE_ALT2 EM_PPC_OLD
2796#endif
2797
ede4eed4
KR		 2798#define bfd_elf32_bfd_copy_private_bfd_data ppc_elf_copy_private_bfd_data
2799#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
2800#define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags
2801#define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup
83f4323e 2802#define elf_backend_section_from_shdr ppc_elf_section_from_shdr
ede4eed4 2803#define elf_backend_relocate_section ppc_elf_relocate_section
08556813
MM		 2804#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
2805#define elf_backend_check_relocs ppc_elf_check_relocs
2806#define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol
9d621c7d 2807#define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook
08556813
MM		 2808#define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections
2809#define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol
2810#define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections
57081126 2811#define elf_backend_fake_sections ppc_elf_fake_sections
3f7ca26b
MM		 2812#define elf_backend_additional_program_headers ppc_elf_additional_program_headers
2813#define elf_backend_modify_segment_map ppc_elf_modify_segment_map
ede4eed4 2814
bcbe2c71 2815#include "elf32-target.h"
GDB Binutils - Deliverables
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