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* Makefile.in: Regenerate.
[deliverable/binutils-gdb.git] / bfd / elfarm-nabi.c
CommitLineData
252b5132 1/* 32-bit ELF support for ARM new abi option.
acf8aed4 2 Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
252b5132
RH		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20#include "elf/arm.h"
21#include "bfd.h"
22#include "sysdep.h"
23#include "libbfd.h"
24#include "elf-bfd.h"
25
26#ifndef NUM_ELEM
27#define NUM_ELEM(a) (sizeof (a) / (sizeof (a)[0]))
28#endif
29
acf8aed4 30#define USE_REL 1
252b5132 31
252b5132 32#define elf_info_to_howto 0
ba96a88f 33#define elf_info_to_howto_rel elf32_arm_info_to_howto
252b5132 34
ba96a88f
NC		 35#define ARM_ELF_ABI_VERSION 0
36#define ARM_ELF_OS_ABI_VERSION ELFOSABI_ARM
252b5132
RH		 37
38static reloc_howto_type * elf32_arm_reloc_type_lookup
39 PARAMS ((bfd * abfd, bfd_reloc_code_real_type code));
b34976b6 40static bfd_boolean elf32_arm_nabi_grok_prstatus
2e67030c 41 PARAMS ((bfd *abfd, Elf_Internal_Note *note));
b34976b6 42static bfd_boolean elf32_arm_nabi_grok_psinfo
2e67030c 43 PARAMS ((bfd *abfd, Elf_Internal_Note *note));
252b5132 44
dfc5f959 45/* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g.
3e932841
KH		 46 R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO
47 in that slot. */
dfc5f959 48
252b5132
RH		 49static reloc_howto_type elf32_arm_howto_table[] =
50{
51 /* No relocation */
52 HOWTO (R_ARM_NONE, /* type */
53 0, /* rightshift */
54 0, /* size (0 = byte, 1 = short, 2 = long) */
55 0, /* bitsize */
b34976b6 56 FALSE, /* pc_relative */
252b5132
RH		 57 0, /* bitpos */
58 complain_overflow_dont,/* complain_on_overflow */
59 bfd_elf_generic_reloc, /* special_function */
60 "R_ARM_NONE", /* name */
b34976b6 61 FALSE, /* partial_inplace */
252b5132
RH		 62 0, /* src_mask */
63 0, /* dst_mask */
b34976b6 64 FALSE), /* pcrel_offset */
252b5132
RH		 65
66 HOWTO (R_ARM_PC24, /* type */
67 2, /* rightshift */
68 2, /* size (0 = byte, 1 = short, 2 = long) */
69 24, /* bitsize */
b34976b6 70 TRUE, /* pc_relative */
252b5132
RH		 71 0, /* bitpos */
72 complain_overflow_signed,/* complain_on_overflow */
73 bfd_elf_generic_reloc, /* special_function */
74 "R_ARM_PC24", /* name */
b34976b6 75 FALSE, /* partial_inplace */
252b5132
RH		 76 0x00ffffff, /* src_mask */
77 0x00ffffff, /* dst_mask */
b34976b6 78 TRUE), /* pcrel_offset */
252b5132
RH		 79
80 /* 32 bit absolute */
81 HOWTO (R_ARM_ABS32, /* type */
82 0, /* rightshift */
83 2, /* size (0 = byte, 1 = short, 2 = long) */
84 32, /* bitsize */
b34976b6 85 FALSE, /* pc_relative */
252b5132
RH		 86 0, /* bitpos */
87 complain_overflow_bitfield,/* complain_on_overflow */
88 bfd_elf_generic_reloc, /* special_function */
89 "R_ARM_ABS32", /* name */
b34976b6 90 FALSE, /* partial_inplace */
252b5132
RH		 91 0xffffffff, /* src_mask */
92 0xffffffff, /* dst_mask */
b34976b6 93 FALSE), /* pcrel_offset */
252b5132
RH		 94
95 /* standard 32bit pc-relative reloc */
96 HOWTO (R_ARM_REL32, /* type */
97 0, /* rightshift */
98 2, /* size (0 = byte, 1 = short, 2 = long) */
99 32, /* bitsize */
b34976b6 100 TRUE, /* pc_relative */
252b5132
RH		 101 0, /* bitpos */
102 complain_overflow_bitfield,/* complain_on_overflow */
103 bfd_elf_generic_reloc, /* special_function */
104 "R_ARM_REL32", /* name */
b34976b6 105 FALSE, /* partial_inplace */
252b5132
RH		 106 0xffffffff, /* src_mask */
107 0xffffffff, /* dst_mask */
b34976b6 108 TRUE), /* pcrel_offset */
252b5132
RH		 109
110 /* 8 bit absolute */
111 HOWTO (R_ARM_PC13, /* type */
112 0, /* rightshift */
113 0, /* size (0 = byte, 1 = short, 2 = long) */
114 8, /* bitsize */
b34976b6 115 FALSE, /* pc_relative */
252b5132
RH		 116 0, /* bitpos */
117 complain_overflow_bitfield,/* complain_on_overflow */
118 bfd_elf_generic_reloc, /* special_function */
119 "R_ARM_PC13", /* name */
b34976b6 120 FALSE, /* partial_inplace */
252b5132
RH		 121 0x000000ff, /* src_mask */
122 0x000000ff, /* dst_mask */
b34976b6 123 FALSE), /* pcrel_offset */
252b5132
RH		 124
125 /* 16 bit absolute */
126 HOWTO (R_ARM_ABS16, /* type */
127 0, /* rightshift */
128 1, /* size (0 = byte, 1 = short, 2 = long) */
129 16, /* bitsize */
b34976b6 130 FALSE, /* pc_relative */
252b5132
RH		 131 0, /* bitpos */
132 complain_overflow_bitfield,/* complain_on_overflow */
133 bfd_elf_generic_reloc, /* special_function */
134 "R_ARM_ABS16", /* name */
b34976b6 135 FALSE, /* partial_inplace */
8d0da3c2
DD		 136 0x0000ffff, /* src_mask */
137 0x0000ffff, /* dst_mask */
b34976b6 138 FALSE), /* pcrel_offset */
252b5132
RH		 139
140 /* 12 bit absolute */
141 HOWTO (R_ARM_ABS12, /* type */
142 0, /* rightshift */
143 2, /* size (0 = byte, 1 = short, 2 = long) */
144 12, /* bitsize */
b34976b6 145 FALSE, /* pc_relative */
252b5132
RH		 146 0, /* bitpos */
147 complain_overflow_bitfield,/* complain_on_overflow */
148 bfd_elf_generic_reloc, /* special_function */
149 "R_ARM_ABS12", /* name */
b34976b6 150 FALSE, /* partial_inplace */
252b5132
RH		 151 0x000008ff, /* src_mask */
152 0x000008ff, /* dst_mask */
b34976b6 153 FALSE), /* pcrel_offset */
252b5132
RH		 154
155 HOWTO (R_ARM_THM_ABS5, /* type */
156 6, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 5, /* bitsize */
b34976b6 159 FALSE, /* pc_relative */
252b5132
RH		 160 0, /* bitpos */
161 complain_overflow_bitfield,/* complain_on_overflow */
162 bfd_elf_generic_reloc, /* special_function */
163 "R_ARM_THM_ABS5", /* name */
b34976b6 164 FALSE, /* partial_inplace */
252b5132
RH		 165 0x000007e0, /* src_mask */
166 0x000007e0, /* dst_mask */
b34976b6 167 FALSE), /* pcrel_offset */
252b5132
RH		 168
169 /* 8 bit absolute */
170 HOWTO (R_ARM_ABS8, /* type */
171 0, /* rightshift */
172 0, /* size (0 = byte, 1 = short, 2 = long) */
173 8, /* bitsize */
b34976b6 174 FALSE, /* pc_relative */
252b5132
RH		 175 0, /* bitpos */
176 complain_overflow_bitfield,/* complain_on_overflow */
177 bfd_elf_generic_reloc, /* special_function */
178 "R_ARM_ABS8", /* name */
b34976b6 179 FALSE, /* partial_inplace */
252b5132
RH		 180 0x000000ff, /* src_mask */
181 0x000000ff, /* dst_mask */
b34976b6 182 FALSE), /* pcrel_offset */
252b5132
RH		 183
184 HOWTO (R_ARM_SBREL32, /* type */
185 0, /* rightshift */
db6579d4
PB		 186 2, /* size (0 = byte, 1 = short, 2 = long) */
187 32, /* bitsize */
b34976b6 188 FALSE, /* pc_relative */
252b5132
RH		 189 0, /* bitpos */
190 complain_overflow_dont,/* complain_on_overflow */
191 bfd_elf_generic_reloc, /* special_function */
192 "R_ARM_SBREL32", /* name */
b34976b6 193 FALSE, /* partial_inplace */
db6579d4
PB		 194 0xffffffff, /* src_mask */
195 0xffffffff, /* dst_mask */
b34976b6 196 FALSE), /* pcrel_offset */
252b5132
RH		 197
198 HOWTO (R_ARM_THM_PC22, /* type */
199 1, /* rightshift */
200 2, /* size (0 = byte, 1 = short, 2 = long) */
201 23, /* bitsize */
b34976b6 202 TRUE, /* pc_relative */
252b5132
RH		 203 0, /* bitpos */
204 complain_overflow_signed,/* complain_on_overflow */
205 bfd_elf_generic_reloc, /* special_function */
206 "R_ARM_THM_PC22", /* name */
b34976b6 207 FALSE, /* partial_inplace */
252b5132
RH		 208 0x07ff07ff, /* src_mask */
209 0x07ff07ff, /* dst_mask */
b34976b6 210 TRUE), /* pcrel_offset */
252b5132
RH		 211
212 HOWTO (R_ARM_THM_PC8, /* type */
213 1, /* rightshift */
214 1, /* size (0 = byte, 1 = short, 2 = long) */
215 8, /* bitsize */
b34976b6 216 TRUE, /* pc_relative */
252b5132
RH		 217 0, /* bitpos */
218 complain_overflow_signed,/* complain_on_overflow */
219 bfd_elf_generic_reloc, /* special_function */
220 "R_ARM_THM_PC8", /* name */
b34976b6 221 FALSE, /* partial_inplace */
252b5132
RH		 222 0x000000ff, /* src_mask */
223 0x000000ff, /* dst_mask */
b34976b6 224 TRUE), /* pcrel_offset */
252b5132
RH		 225
226 HOWTO (R_ARM_AMP_VCALL9, /* type */
227 1, /* rightshift */
228 1, /* size (0 = byte, 1 = short, 2 = long) */
229 8, /* bitsize */
b34976b6 230 TRUE, /* pc_relative */
252b5132
RH		 231 0, /* bitpos */
232 complain_overflow_signed,/* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_ARM_AMP_VCALL9", /* name */
b34976b6 235 FALSE, /* partial_inplace */
252b5132
RH		 236 0x000000ff, /* src_mask */
237 0x000000ff, /* dst_mask */
b34976b6 238 TRUE), /* pcrel_offset */
252b5132
RH		 239
240 HOWTO (R_ARM_SWI24, /* type */
241 0, /* rightshift */
242 0, /* size (0 = byte, 1 = short, 2 = long) */
243 0, /* bitsize */
b34976b6 244 FALSE, /* pc_relative */
252b5132
RH		 245 0, /* bitpos */
246 complain_overflow_signed,/* complain_on_overflow */
247 bfd_elf_generic_reloc, /* special_function */
248 "R_ARM_SWI24", /* name */
b34976b6 249 FALSE, /* partial_inplace */
252b5132
RH		 250 0x00000000, /* src_mask */
251 0x00000000, /* dst_mask */
b34976b6 252 FALSE), /* pcrel_offset */
252b5132
RH		 253
254 HOWTO (R_ARM_THM_SWI8, /* type */
255 0, /* rightshift */
256 0, /* size (0 = byte, 1 = short, 2 = long) */
257 0, /* bitsize */
b34976b6 258 FALSE, /* pc_relative */
252b5132
RH		 259 0, /* bitpos */
260 complain_overflow_signed,/* complain_on_overflow */
261 bfd_elf_generic_reloc, /* special_function */
262 "R_ARM_SWI8", /* name */
b34976b6 263 FALSE, /* partial_inplace */
252b5132
RH		 264 0x00000000, /* src_mask */
265 0x00000000, /* dst_mask */
b34976b6 266 FALSE), /* pcrel_offset */
252b5132 267
dfc5f959 268 /* BLX instruction for the ARM. */
252b5132 269 HOWTO (R_ARM_XPC25, /* type */
dfc5f959
NC		 270 2, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 25, /* bitsize */
b34976b6 273 TRUE, /* pc_relative */
252b5132
RH		 274 0, /* bitpos */
275 complain_overflow_signed,/* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_ARM_XPC25", /* name */
b34976b6 278 FALSE, /* partial_inplace */
dfc5f959
NC		 279 0x00ffffff, /* src_mask */
280 0x00ffffff, /* dst_mask */
b34976b6 281 TRUE), /* pcrel_offset */
3e932841 282
dfc5f959 283 /* BLX instruction for the Thumb. */
252b5132 284 HOWTO (R_ARM_THM_XPC22, /* type */
dfc5f959
NC		 285 2, /* rightshift */
286 2, /* size (0 = byte, 1 = short, 2 = long) */
287 22, /* bitsize */
b34976b6 288 TRUE, /* pc_relative */
252b5132
RH		 289 0, /* bitpos */
290 complain_overflow_signed,/* complain_on_overflow */
291 bfd_elf_generic_reloc, /* special_function */
292 "R_ARM_THM_XPC22", /* name */
b34976b6 293 FALSE, /* partial_inplace */
dfc5f959
NC		 294 0x07ff07ff, /* src_mask */
295 0x07ff07ff, /* dst_mask */
b34976b6 296 TRUE), /* pcrel_offset */
3e932841 297
252b5132
RH		 298 /* These next three relocs are not defined, but we need to fill the space. */
299
300 HOWTO (R_ARM_NONE, /* type */
301 0, /* rightshift */
302 0, /* size (0 = byte, 1 = short, 2 = long) */
303 0, /* bitsize */
b34976b6 304 FALSE, /* pc_relative */
252b5132
RH		 305 0, /* bitpos */
306 complain_overflow_dont,/* complain_on_overflow */
307 bfd_elf_generic_reloc, /* special_function */
308 "R_ARM_unknown_17", /* name */
b34976b6 309 FALSE, /* partial_inplace */
252b5132
RH		 310 0, /* src_mask */
311 0, /* dst_mask */
b34976b6 312 FALSE), /* pcrel_offset */
252b5132
RH		 313
314 HOWTO (R_ARM_NONE, /* type */
315 0, /* rightshift */
316 0, /* size (0 = byte, 1 = short, 2 = long) */
317 0, /* bitsize */
b34976b6 318 FALSE, /* pc_relative */
252b5132
RH		 319 0, /* bitpos */
320 complain_overflow_dont,/* complain_on_overflow */
321 bfd_elf_generic_reloc, /* special_function */
322 "R_ARM_unknown_18", /* name */
b34976b6 323 FALSE, /* partial_inplace */
252b5132
RH		 324 0, /* src_mask */
325 0, /* dst_mask */
b34976b6 326 FALSE), /* pcrel_offset */
252b5132
RH		 327
328 HOWTO (R_ARM_NONE, /* type */
329 0, /* rightshift */
330 0, /* size (0 = byte, 1 = short, 2 = long) */
331 0, /* bitsize */
b34976b6 332 FALSE, /* pc_relative */
252b5132
RH		 333 0, /* bitpos */
334 complain_overflow_dont,/* complain_on_overflow */
335 bfd_elf_generic_reloc, /* special_function */
336 "R_ARM_unknown_19", /* name */
b34976b6 337 FALSE, /* partial_inplace */
252b5132
RH		 338 0, /* src_mask */
339 0, /* dst_mask */
b34976b6 340 FALSE), /* pcrel_offset */
252b5132
RH		 341
342 /* Relocs used in ARM Linux */
3e932841 343
252b5132
RH		 344 HOWTO (R_ARM_COPY, /* type */
345 0, /* rightshift */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
347 32, /* bitsize */
b34976b6 348 FALSE, /* pc_relative */
252b5132
RH		 349 0, /* bitpos */
350 complain_overflow_bitfield,/* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_ARM_COPY", /* name */
b34976b6 353 TRUE, /* partial_inplace */
252b5132
RH		 354 0xffffffff, /* src_mask */
355 0xffffffff, /* dst_mask */
b34976b6 356 FALSE), /* pcrel_offset */
252b5132
RH		 357
358 HOWTO (R_ARM_GLOB_DAT, /* type */
359 0, /* rightshift */
360 2, /* size (0 = byte, 1 = short, 2 = long) */
361 32, /* bitsize */
b34976b6 362 FALSE, /* pc_relative */
252b5132
RH		 363 0, /* bitpos */
364 complain_overflow_bitfield,/* complain_on_overflow */
365 bfd_elf_generic_reloc, /* special_function */
366 "R_ARM_GLOB_DAT", /* name */
b34976b6 367 TRUE, /* partial_inplace */
252b5132
RH		 368 0xffffffff, /* src_mask */
369 0xffffffff, /* dst_mask */
b34976b6 370 FALSE), /* pcrel_offset */
3e932841 371
252b5132
RH		 372 HOWTO (R_ARM_JUMP_SLOT, /* type */
373 0, /* rightshift */
374 2, /* size (0 = byte, 1 = short, 2 = long) */
375 32, /* bitsize */
b34976b6 376 FALSE, /* pc_relative */
252b5132
RH		 377 0, /* bitpos */
378 complain_overflow_bitfield,/* complain_on_overflow */
379 bfd_elf_generic_reloc, /* special_function */
380 "R_ARM_JUMP_SLOT", /* name */
b34976b6 381 TRUE, /* partial_inplace */
252b5132
RH		 382 0xffffffff, /* src_mask */
383 0xffffffff, /* dst_mask */
b34976b6 384 FALSE), /* pcrel_offset */
3e932841 385
252b5132
RH		 386 HOWTO (R_ARM_RELATIVE, /* type */
387 0, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 32, /* bitsize */
b34976b6 390 FALSE, /* pc_relative */
252b5132
RH		 391 0, /* bitpos */
392 complain_overflow_bitfield,/* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_ARM_RELATIVE", /* name */
b34976b6 395 TRUE, /* partial_inplace */
252b5132
RH		 396 0xffffffff, /* src_mask */
397 0xffffffff, /* dst_mask */
b34976b6 398 FALSE), /* pcrel_offset */
3e932841 399
252b5132
RH		 400 HOWTO (R_ARM_GOTOFF, /* type */
401 0, /* rightshift */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
403 32, /* bitsize */
b34976b6 404 FALSE, /* pc_relative */
252b5132
RH		 405 0, /* bitpos */
406 complain_overflow_bitfield,/* complain_on_overflow */
407 bfd_elf_generic_reloc, /* special_function */
408 "R_ARM_GOTOFF", /* name */
b34976b6 409 TRUE, /* partial_inplace */
252b5132
RH		 410 0xffffffff, /* src_mask */
411 0xffffffff, /* dst_mask */
b34976b6 412 FALSE), /* pcrel_offset */
3e932841 413
252b5132
RH		 414 HOWTO (R_ARM_GOTPC, /* type */
415 0, /* rightshift */
416 2, /* size (0 = byte, 1 = short, 2 = long) */
417 32, /* bitsize */
b34976b6 418 TRUE, /* pc_relative */
252b5132
RH		 419 0, /* bitpos */
420 complain_overflow_bitfield,/* complain_on_overflow */
421 bfd_elf_generic_reloc, /* special_function */
422 "R_ARM_GOTPC", /* name */
b34976b6 423 TRUE, /* partial_inplace */
252b5132
RH		 424 0xffffffff, /* src_mask */
425 0xffffffff, /* dst_mask */
b34976b6 426 TRUE), /* pcrel_offset */
3e932841 427
252b5132
RH		 428 HOWTO (R_ARM_GOT32, /* type */
429 0, /* rightshift */
430 2, /* size (0 = byte, 1 = short, 2 = long) */
431 32, /* bitsize */
b34976b6 432 FALSE, /* pc_relative */
252b5132
RH		 433 0, /* bitpos */
434 complain_overflow_bitfield,/* complain_on_overflow */
435 bfd_elf_generic_reloc, /* special_function */
436 "R_ARM_GOT32", /* name */
b34976b6 437 TRUE, /* partial_inplace */
252b5132
RH		 438 0xffffffff, /* src_mask */
439 0xffffffff, /* dst_mask */
b34976b6 440 FALSE), /* pcrel_offset */
3e932841 441
252b5132
RH		 442 HOWTO (R_ARM_PLT32, /* type */
443 2, /* rightshift */
444 2, /* size (0 = byte, 1 = short, 2 = long) */
445 26, /* bitsize */
b34976b6 446 TRUE, /* pc_relative */
252b5132
RH		 447 0, /* bitpos */
448 complain_overflow_bitfield,/* complain_on_overflow */
449 bfd_elf_generic_reloc, /* special_function */
450 "R_ARM_PLT32", /* name */
b34976b6 451 TRUE, /* partial_inplace */
252b5132
RH		 452 0x00ffffff, /* src_mask */
453 0x00ffffff, /* dst_mask */
b34976b6 454 TRUE), /* pcrel_offset */
3e932841
KH		 455
456 /* End of relocs used in ARM Linux */
252b5132
RH		 457
458 HOWTO (R_ARM_RREL32, /* type */
459 0, /* rightshift */
460 0, /* size (0 = byte, 1 = short, 2 = long) */
461 0, /* bitsize */
b34976b6 462 FALSE, /* pc_relative */
252b5132
RH		 463 0, /* bitpos */
464 complain_overflow_dont,/* complain_on_overflow */
465 bfd_elf_generic_reloc, /* special_function */
466 "R_ARM_RREL32", /* name */
b34976b6 467 FALSE, /* partial_inplace */
252b5132
RH		 468 0, /* src_mask */
469 0, /* dst_mask */
b34976b6 470 FALSE), /* pcrel_offset */
252b5132
RH		 471
472 HOWTO (R_ARM_RABS32, /* type */
473 0, /* rightshift */
474 0, /* size (0 = byte, 1 = short, 2 = long) */
475 0, /* bitsize */
b34976b6 476 FALSE, /* pc_relative */
252b5132
RH		 477 0, /* bitpos */
478 complain_overflow_dont,/* complain_on_overflow */
479 bfd_elf_generic_reloc, /* special_function */
480 "R_ARM_RABS32", /* name */
b34976b6 481 FALSE, /* partial_inplace */
252b5132
RH		 482 0, /* src_mask */
483 0, /* dst_mask */
b34976b6 484 FALSE), /* pcrel_offset */
252b5132
RH		 485
486 HOWTO (R_ARM_RPC24, /* type */
487 0, /* rightshift */
488 0, /* size (0 = byte, 1 = short, 2 = long) */
489 0, /* bitsize */
b34976b6 490 FALSE, /* pc_relative */
252b5132
RH		 491 0, /* bitpos */
492 complain_overflow_dont,/* complain_on_overflow */
493 bfd_elf_generic_reloc, /* special_function */
494 "R_ARM_RPC24", /* name */
b34976b6 495 FALSE, /* partial_inplace */
252b5132
RH		 496 0, /* src_mask */
497 0, /* dst_mask */
b34976b6 498 FALSE), /* pcrel_offset */
252b5132
RH		 499
500 HOWTO (R_ARM_RBASE, /* type */
501 0, /* rightshift */
502 0, /* size (0 = byte, 1 = short, 2 = long) */
503 0, /* bitsize */
b34976b6 504 FALSE, /* pc_relative */
252b5132
RH		 505 0, /* bitpos */
506 complain_overflow_dont,/* complain_on_overflow */
507 bfd_elf_generic_reloc, /* special_function */
508 "R_ARM_RBASE", /* name */
b34976b6 509 FALSE, /* partial_inplace */
252b5132
RH		 510 0, /* src_mask */
511 0, /* dst_mask */
b34976b6 512 FALSE), /* pcrel_offset */
252b5132 513
8375c36b
PB		 514 HOWTO (R_ARM_ALU_PCREL7_0, /* type */
515 0, /* rightshift */
516 2, /* size (0 = byte, 1 = short, 2 = long) */
517 12, /* bitsize */
518 TRUE, /* pc_relative */
519 0, /* bitpos */
520 complain_overflow_dont,/* complain_on_overflow */
521 bfd_elf_generic_reloc, /* special_function */
522 "R_ARM_ALU_PCREL_7_0", /* name */
523 FALSE, /* partial_inplace */
524 0x00000fff, /* src_mask */
525 0x00000fff, /* dst_mask */
526 TRUE), /* pcrel_offset */
527
528 HOWTO (R_ARM_ALU_PCREL15_8, /* type */
529 0, /* rightshift */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
531 12, /* bitsize */
532 TRUE, /* pc_relative */
533 8, /* bitpos */
534 complain_overflow_dont,/* complain_on_overflow */
535 bfd_elf_generic_reloc, /* special_function */
536 "R_ARM_ALU_PCREL_15_8",/* name */
537 FALSE, /* partial_inplace */
538 0x00000fff, /* src_mask */
539 0x00000fff, /* dst_mask */
540 TRUE), /* pcrel_offset */
541
542 HOWTO (R_ARM_ALU_PCREL23_15, /* type */
543 0, /* rightshift */
544 2, /* size (0 = byte, 1 = short, 2 = long) */
545 12, /* bitsize */
546 TRUE, /* pc_relative */
547 16, /* bitpos */
548 complain_overflow_dont,/* complain_on_overflow */
549 bfd_elf_generic_reloc, /* special_function */
550 "R_ARM_ALU_PCREL_23_15",/* name */
551 FALSE, /* partial_inplace */
552 0x00000fff, /* src_mask */
553 0x00000fff, /* dst_mask */
554 TRUE), /* pcrel_offset */
db6579d4
PB		 555
556 HOWTO (R_ARM_LDR_SBREL_11_0, /* type */
557 0, /* rightshift */
558 2, /* size (0 = byte, 1 = short, 2 = long) */
559 12, /* bitsize */
560 FALSE, /* pc_relative */
561 0, /* bitpos */
562 complain_overflow_dont,/* complain_on_overflow */
563 bfd_elf_generic_reloc, /* special_function */
564 "R_ARM_LDR_SBREL_11_0",/* name */
565 FALSE, /* partial_inplace */
566 0x00000fff, /* src_mask */
567 0x00000fff, /* dst_mask */
568 FALSE), /* pcrel_offset */
569
570 HOWTO (R_ARM_ALU_SBREL_19_12, /* type */
571 0, /* rightshift */
572 2, /* size (0 = byte, 1 = short, 2 = long) */
573 8, /* bitsize */
574 FALSE, /* pc_relative */
575 12, /* bitpos */
576 complain_overflow_dont,/* complain_on_overflow */
577 bfd_elf_generic_reloc, /* special_function */
578 "R_ARM_ALU_SBREL_19_12",/* name */
579 FALSE, /* partial_inplace */
580 0x000ff000, /* src_mask */
581 0x000ff000, /* dst_mask */
582 FALSE), /* pcrel_offset */
583
584 HOWTO (R_ARM_ALU_SBREL_27_20, /* type */
585 0, /* rightshift */
586 2, /* size (0 = byte, 1 = short, 2 = long) */
587 8, /* bitsize */
588 FALSE, /* pc_relative */
589 20, /* bitpos */
590 complain_overflow_dont,/* complain_on_overflow */
591 bfd_elf_generic_reloc, /* special_function */
592 "R_ARM_ALU_SBREL_27_20",/* name */
593 FALSE, /* partial_inplace */
594 0x0ff00000, /* src_mask */
595 0x0ff00000, /* dst_mask */
596 FALSE), /* pcrel_offset */
597
9c504268 598 HOWTO (R_ARM_TARGET1, /* type */
db6579d4
PB		 599 0, /* rightshift */
600 2, /* size (0 = byte, 1 = short, 2 = long) */
601 32, /* bitsize */
602 FALSE, /* pc_relative */
603 0, /* bitpos */
604 complain_overflow_dont,/* complain_on_overflow */
605 bfd_elf_generic_reloc, /* special_function */
9c504268 606 "R_ARM_TARGET1", /* name */
db6579d4
PB		 607 FALSE, /* partial_inplace */
608 0xffffffff, /* src_mask */
609 0xffffffff, /* dst_mask */
610 FALSE), /* pcrel_offset */
611
612 HOWTO (R_ARM_ROSEGREL32, /* type */
613 0, /* rightshift */
614 2, /* size (0 = byte, 1 = short, 2 = long) */
615 32, /* bitsize */
616 FALSE, /* pc_relative */
617 0, /* bitpos */
618 complain_overflow_dont,/* complain_on_overflow */
619 bfd_elf_generic_reloc, /* special_function */
620 "R_ARM_ROSEGREL32", /* name */
621 FALSE, /* partial_inplace */
622 0xffffffff, /* src_mask */
623 0xffffffff, /* dst_mask */
624 FALSE), /* pcrel_offset */
625
626 HOWTO (R_ARM_V4BX, /* type */
627 0, /* rightshift */
628 2, /* size (0 = byte, 1 = short, 2 = long) */
629 32, /* bitsize */
630 FALSE, /* pc_relative */
631 0, /* bitpos */
632 complain_overflow_dont,/* complain_on_overflow */
633 bfd_elf_generic_reloc, /* special_function */
634 "R_ARM_V4BX", /* name */
635 FALSE, /* partial_inplace */
636 0xffffffff, /* src_mask */
637 0xffffffff, /* dst_mask */
638 FALSE), /* pcrel_offset */
252b5132
RH		 639};
640
641 /* GNU extension to record C++ vtable hierarchy */
642static reloc_howto_type elf32_arm_vtinherit_howto =
643 HOWTO (R_ARM_GNU_VTINHERIT, /* type */
644 0, /* rightshift */
645 2, /* size (0 = byte, 1 = short, 2 = long) */
646 0, /* bitsize */
b34976b6 647 FALSE, /* pc_relative */
252b5132
RH		 648 0, /* bitpos */
649 complain_overflow_dont, /* complain_on_overflow */
650 NULL, /* special_function */
651 "R_ARM_GNU_VTINHERIT", /* name */
b34976b6 652 FALSE, /* partial_inplace */
252b5132
RH		 653 0, /* src_mask */
654 0, /* dst_mask */
b34976b6 655 FALSE); /* pcrel_offset */
252b5132
RH		 656
657 /* GNU extension to record C++ vtable member usage */
658static reloc_howto_type elf32_arm_vtentry_howto =
659 HOWTO (R_ARM_GNU_VTENTRY, /* type */
660 0, /* rightshift */
661 2, /* size (0 = byte, 1 = short, 2 = long) */
662 0, /* bitsize */
b34976b6 663 FALSE, /* pc_relative */
252b5132
RH		 664 0, /* bitpos */
665 complain_overflow_dont, /* complain_on_overflow */
666 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
667 "R_ARM_GNU_VTENTRY", /* name */
b34976b6 668 FALSE, /* partial_inplace */
252b5132
RH		 669 0, /* src_mask */
670 0, /* dst_mask */
b34976b6 671 FALSE); /* pcrel_offset */
252b5132
RH		 672
673 /* 12 bit pc relative */
674static reloc_howto_type elf32_arm_thm_pc11_howto =
675 HOWTO (R_ARM_THM_PC11, /* type */
676 1, /* rightshift */
677 1, /* size (0 = byte, 1 = short, 2 = long) */
678 11, /* bitsize */
b34976b6 679 TRUE, /* pc_relative */
252b5132
RH		 680 0, /* bitpos */
681 complain_overflow_signed, /* complain_on_overflow */
682 bfd_elf_generic_reloc, /* special_function */
683 "R_ARM_THM_PC11", /* name */
b34976b6 684 FALSE, /* partial_inplace */
252b5132
RH		 685 0x000007ff, /* src_mask */
686 0x000007ff, /* dst_mask */
b34976b6 687 TRUE); /* pcrel_offset */
252b5132
RH		 688
689 /* 12 bit pc relative */
690static reloc_howto_type elf32_arm_thm_pc9_howto =
691 HOWTO (R_ARM_THM_PC9, /* type */
692 1, /* rightshift */
693 1, /* size (0 = byte, 1 = short, 2 = long) */
694 8, /* bitsize */
b34976b6 695 TRUE, /* pc_relative */
252b5132
RH		 696 0, /* bitpos */
697 complain_overflow_signed, /* complain_on_overflow */
698 bfd_elf_generic_reloc, /* special_function */
699 "R_ARM_THM_PC9", /* name */
b34976b6 700 FALSE, /* partial_inplace */
252b5132
RH		 701 0x000000ff, /* src_mask */
702 0x000000ff, /* dst_mask */
b34976b6 703 TRUE); /* pcrel_offset */
252b5132 704
917583ad 705static void elf32_arm_info_to_howto
947216bf 706 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
917583ad 707
252b5132 708static void
ba96a88f 709elf32_arm_info_to_howto (abfd, bfd_reloc, elf_reloc)
5f771d47 710 bfd * abfd ATTRIBUTE_UNUSED;
252b5132 711 arelent * bfd_reloc;
947216bf 712 Elf_Internal_Rela * elf_reloc;
252b5132
RH		 713{
714 unsigned int r_type;
3e932841 715
252b5132
RH		 716 r_type = ELF32_R_TYPE (elf_reloc->r_info);
717
718 switch (r_type)
719 {
720 case R_ARM_GNU_VTINHERIT:
721 bfd_reloc->howto = & elf32_arm_vtinherit_howto;
722 break;
3e932841 723
252b5132
RH		 724 case R_ARM_GNU_VTENTRY:
725 bfd_reloc->howto = & elf32_arm_vtentry_howto;
726 break;
3e932841 727
252b5132
RH		 728 case R_ARM_THM_PC11:
729 bfd_reloc->howto = & elf32_arm_thm_pc11_howto;
730 break;
3e932841 731
252b5132
RH		 732 case R_ARM_THM_PC9:
733 bfd_reloc->howto = & elf32_arm_thm_pc9_howto;
734 break;
3e932841 735
252b5132
RH		 736 default:
737 if (r_type >= NUM_ELEM (elf32_arm_howto_table))
738 bfd_reloc->howto = NULL;
739 else
740 bfd_reloc->howto = & elf32_arm_howto_table[r_type];
741 break;
742 }
743}
3e932841 744
252b5132
RH		 745struct elf32_arm_reloc_map
746 {
747 bfd_reloc_code_real_type bfd_reloc_val;
748 unsigned char elf_reloc_val;
749 };
750
751static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] =
917583ad
NC		 752 {
753 {BFD_RELOC_NONE, R_ARM_NONE},
754 {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24},
755 {BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25},
756 {BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22},
757 {BFD_RELOC_32, R_ARM_ABS32},
758 {BFD_RELOC_32_PCREL, R_ARM_REL32},
759 {BFD_RELOC_8, R_ARM_ABS8},
760 {BFD_RELOC_16, R_ARM_ABS16},
761 {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12},
762 {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5},
763 {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22},
764 {BFD_RELOC_ARM_COPY, R_ARM_COPY},
765 {BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT},
766 {BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT},
767 {BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE},
768 {BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF},
769 {BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC},
770 {BFD_RELOC_ARM_GOT32, R_ARM_GOT32},
db6579d4 771 {BFD_RELOC_ARM_PLT32, R_ARM_PLT32},
9c504268 772 {BFD_RELOC_ARM_TARGET1, R_ARM_TARGET1},
db6579d4
PB		 773 {BFD_RELOC_ARM_ROSEGREL32, R_ARM_ROSEGREL32},
774 {BFD_RELOC_ARM_SBREL32, R_ARM_SBREL32}
917583ad 775 };
252b5132
RH		 776
777static reloc_howto_type *
778elf32_arm_reloc_type_lookup (abfd, code)
5f771d47 779 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 780 bfd_reloc_code_real_type code;
781{
782 unsigned int i;
783
784 switch (code)
785 {
786 case BFD_RELOC_VTABLE_INHERIT:
787 return & elf32_arm_vtinherit_howto;
788
789 case BFD_RELOC_VTABLE_ENTRY:
790 return & elf32_arm_vtentry_howto;
791
792 case BFD_RELOC_THUMB_PCREL_BRANCH12:
793 return & elf32_arm_thm_pc11_howto;
794
795 case BFD_RELOC_THUMB_PCREL_BRANCH9:
796 return & elf32_arm_thm_pc9_howto;
797
798 default:
799 for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++)
800 if (elf32_arm_reloc_map[i].bfd_reloc_val == code)
801 return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val];
3e932841 802
252b5132
RH		 803 return NULL;
804 }
805}
806
c5fccbec 807/* Support for core dump NOTE sections */
b34976b6 808static bfd_boolean
c5fccbec
DJ		 809elf32_arm_nabi_grok_prstatus (abfd, note)
810 bfd *abfd;
811 Elf_Internal_Note *note;
812{
813 int offset;
eea6121a 814 size_t size;
c5fccbec
DJ		 815
816 switch (note->descsz)
817 {
818 default:
b34976b6 819 return FALSE;
c5fccbec
DJ		 820
821 case 148: /* Linux/ARM 32-bit*/
822 /* pr_cursig */
823 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
824
825 /* pr_pid */
826 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
827
828 /* pr_reg */
829 offset = 72;
eea6121a 830 size = 72;
c5fccbec
DJ		 831
832 break;
833 }
834
835 /* Make a ".reg/999" section. */
836 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 837 size, note->descpos + offset);
c5fccbec
DJ		 838}
839
b34976b6 840static bfd_boolean
c5fccbec
DJ		 841elf32_arm_nabi_grok_psinfo (abfd, note)
842 bfd *abfd;
843 Elf_Internal_Note *note;
844{
845 switch (note->descsz)
846 {
847 default:
b34976b6 848 return FALSE;
c5fccbec
DJ		 849
850 case 124: /* Linux/ARM elf_prpsinfo */
851 elf_tdata (abfd)->core_program
852 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
853 elf_tdata (abfd)->core_command
854 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
855 }
856
857 /* Note that for some reason, a spurious space is tacked
858 onto the end of the args in some (at least one anyway)
859 implementations, so strip it off if it exists. */
860
861 {
862 char *command = elf_tdata (abfd)->core_command;
863 int n = strlen (command);
864
865 if (0 < n && command[n - 1] == ' ')
866 command[n - 1] = '\0';
867 }
868
b34976b6 869 return TRUE;
c5fccbec
DJ		 870}
871
e5a52504
MM		 872#define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec
873#define TARGET_LITTLE_NAME "elf32-littlearm"
874#define TARGET_BIG_SYM bfd_elf32_bigarm_vec
875#define TARGET_BIG_NAME "elf32-bigarm"
876
c5fccbec
DJ		 877#define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus
878#define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo
879
252b5132 880#include "elf32-arm.h"
e5a52504
MM		 881
882/* Symbian OS Targets */
883
884#undef TARGET_LITTLE_SYM
885#define TARGET_LITTLE_SYM bfd_elf32_littlearm_symbian_vec
886#undef TARGET_LITTLE_NAME
887#define TARGET_LITTLE_NAME "elf32-littlearm-symbian"
888#undef TARGET_BIG_SYM
889#define TARGET_BIG_SYM bfd_elf32_bigarm_symbian_vec
890#undef TARGET_BIG_NAME
891#define TARGET_BIG_NAME "elf32-bigarm-symbian"
892
893/* Like elf32_arm_link_hash_table_create -- but overrides
894 appropriately for Symbian OS. */
895static struct bfd_link_hash_table *
896elf32_arm_symbian_link_hash_table_create (bfd *abfd)
897{
898 struct bfd_link_hash_table *ret;
899
900 ret = elf32_arm_link_hash_table_create (abfd);
901 if (ret)
902 {
903 struct elf32_arm_link_hash_table *htab
904 = (struct elf32_arm_link_hash_table *)ret;
905 /* There is no PLT header for Symbian OS. */
906 htab->plt_header_size = 0;
907 /* The PLT entries are each three instructions. */
908 htab->plt_entry_size = 4 * NUM_ELEM (elf32_arm_symbian_plt_entry);
909 htab->symbian_p = 1;
910 }
911 return ret;
912}
913
914/* In a BPABI executable, the dynamic linking sections do not go in
915 the loadable read-only segment. The post-linker may wish to refer
916 to these sections, but they are not part of the final program
917 image. */
918static struct bfd_elf_special_section const
919 elf32_arm_symbian_special_sections[]=
920{
921 { ".dynamic", 8, 0, SHT_DYNAMIC, 0 },
922 { ".dynstr", 7, 0, SHT_STRTAB, 0 },
923 { ".dynsym", 7, 0, SHT_DYNSYM, 0 },
924 { ".got", 4, 0, SHT_PROGBITS, 0 },
925 { ".hash", 5, 0, SHT_HASH, 0 },
926 { NULL, 0, 0, 0, 0 }
927};
928
929static bfd_boolean
930elf32_arm_symbian_modify_segment_map
931 PARAMS ((bfd *, struct bfd_link_info *));
932
933static bfd_boolean
934elf32_arm_symbian_modify_segment_map (abfd, info)
935 bfd *abfd;
936 struct bfd_link_info *info ATTRIBUTE_UNUSED;
937{
938 struct elf_segment_map *m;
229fcec5 939 asection *dynsec;
e5a52504
MM		 940
941 /* The first PT_LOAD segment will have the program headers and file
942 headers in it by default -- but BPABI object files should not
943 include these headers in any loadable segment. */
944 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
945 if (m->p_type == PT_LOAD)
946 {
947 m->includes_filehdr = 0;
948 m->includes_phdrs = 0;
949 }
229fcec5
MM		 950
951 /* BPABI shared libraries and executables should have a PT_DYNAMIC
952 segment. However, because the .dynamic section is not marked
953 with SEC_LOAD, the generic ELF code will not create such a
954 segment. */
955 dynsec = bfd_get_section_by_name (abfd, ".dynamic");
956 if (dynsec)
957 {
958 m = _bfd_elf_make_dynamic_segment (abfd, dynsec);
959 m->next = elf_tdata (abfd)->segment_map;
960 elf_tdata (abfd)->segment_map = m;
961 }
962
e5a52504
MM		 963 return TRUE;
964}
965
966#undef elf32_bed
967#define elf32_bed elf32_arm_symbian_bed
968
969#undef ELF_DYNAMIC_SEC_FLAGS
970#define ELF_DYNAMIC_SEC_FLAGS \
971 (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED)
972
973#undef bfd_elf32_bfd_link_hash_table_create
974#define bfd_elf32_bfd_link_hash_table_create \
975 elf32_arm_symbian_link_hash_table_create
976
977#undef elf_backend_special_sections
978#define elf_backend_special_sections elf32_arm_symbian_special_sections
979
980#undef elf_backend_modify_segment_map
981#define elf_backend_modify_segment_map elf32_arm_symbian_modify_segment_map
982
983/* There is no .got section for BPABI objects, and hence no header. */
984#undef elf_backend_got_header_size
985#define elf_backend_got_header_size 0
986
229fcec5
MM		 987/* Similarly, there is no .got.plt section. */
988#undef elf_backend_want_got_plt
989#define elf_backend_want_got_plt 0
990
e5a52504
MM		 991#include "elf32-target.h"
992
GDB Binutils - Deliverables
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