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[deliverable/binutils-gdb.git] / bfd / elfarm-nabi.c
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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 */
eb043451
PB		 639
640 HOWTO (R_ARM_TARGET2, /* type */
641 0, /* rightshift */
642 2, /* size (0 = byte, 1 = short, 2 = long) */
643 32, /* bitsize */
644 FALSE, /* pc_relative */
645 0, /* bitpos */
646 complain_overflow_signed,/* complain_on_overflow */
647 bfd_elf_generic_reloc, /* special_function */
648 "R_ARM_TARGET2", /* name */
649 FALSE, /* partial_inplace */
650 0xffffffff, /* src_mask */
651 0xffffffff, /* dst_mask */
652 TRUE), /* pcrel_offset */
653
654 HOWTO (R_ARM_PREL31, /* type */
655 0, /* rightshift */
656 2, /* size (0 = byte, 1 = short, 2 = long) */
657 31, /* bitsize */
658 TRUE, /* pc_relative */
659 0, /* bitpos */
660 complain_overflow_signed,/* complain_on_overflow */
661 bfd_elf_generic_reloc, /* special_function */
662 "R_ARM_PREL31", /* name */
663 FALSE, /* partial_inplace */
664 0x7fffffff, /* src_mask */
665 0x7fffffff, /* dst_mask */
666 TRUE), /* pcrel_offset */
252b5132
RH		 667};
668
669 /* GNU extension to record C++ vtable hierarchy */
670static reloc_howto_type elf32_arm_vtinherit_howto =
671 HOWTO (R_ARM_GNU_VTINHERIT, /* type */
672 0, /* rightshift */
673 2, /* size (0 = byte, 1 = short, 2 = long) */
674 0, /* bitsize */
b34976b6 675 FALSE, /* pc_relative */
252b5132
RH		 676 0, /* bitpos */
677 complain_overflow_dont, /* complain_on_overflow */
678 NULL, /* special_function */
679 "R_ARM_GNU_VTINHERIT", /* name */
b34976b6 680 FALSE, /* partial_inplace */
252b5132
RH		 681 0, /* src_mask */
682 0, /* dst_mask */
b34976b6 683 FALSE); /* pcrel_offset */
252b5132
RH		 684
685 /* GNU extension to record C++ vtable member usage */
686static reloc_howto_type elf32_arm_vtentry_howto =
687 HOWTO (R_ARM_GNU_VTENTRY, /* type */
688 0, /* rightshift */
689 2, /* size (0 = byte, 1 = short, 2 = long) */
690 0, /* bitsize */
b34976b6 691 FALSE, /* pc_relative */
252b5132
RH		 692 0, /* bitpos */
693 complain_overflow_dont, /* complain_on_overflow */
694 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
695 "R_ARM_GNU_VTENTRY", /* name */
b34976b6 696 FALSE, /* partial_inplace */
252b5132
RH		 697 0, /* src_mask */
698 0, /* dst_mask */
b34976b6 699 FALSE); /* pcrel_offset */
252b5132
RH		 700
701 /* 12 bit pc relative */
702static reloc_howto_type elf32_arm_thm_pc11_howto =
703 HOWTO (R_ARM_THM_PC11, /* type */
704 1, /* rightshift */
705 1, /* size (0 = byte, 1 = short, 2 = long) */
706 11, /* bitsize */
b34976b6 707 TRUE, /* pc_relative */
252b5132
RH		 708 0, /* bitpos */
709 complain_overflow_signed, /* complain_on_overflow */
710 bfd_elf_generic_reloc, /* special_function */
711 "R_ARM_THM_PC11", /* name */
b34976b6 712 FALSE, /* partial_inplace */
252b5132
RH		 713 0x000007ff, /* src_mask */
714 0x000007ff, /* dst_mask */
b34976b6 715 TRUE); /* pcrel_offset */
252b5132
RH		 716
717 /* 12 bit pc relative */
718static reloc_howto_type elf32_arm_thm_pc9_howto =
719 HOWTO (R_ARM_THM_PC9, /* type */
720 1, /* rightshift */
721 1, /* size (0 = byte, 1 = short, 2 = long) */
722 8, /* bitsize */
b34976b6 723 TRUE, /* pc_relative */
252b5132
RH		 724 0, /* bitpos */
725 complain_overflow_signed, /* complain_on_overflow */
726 bfd_elf_generic_reloc, /* special_function */
727 "R_ARM_THM_PC9", /* name */
b34976b6 728 FALSE, /* partial_inplace */
252b5132
RH		 729 0x000000ff, /* src_mask */
730 0x000000ff, /* dst_mask */
b34976b6 731 TRUE); /* pcrel_offset */
252b5132 732
eb043451
PB		 733/* Place relative GOT-indirect. */
734static reloc_howto_type elf32_arm_got_prel =
735 HOWTO (R_ARM_GOT_PREL, /* type */
736 0, /* rightshift */
737 2, /* size (0 = byte, 1 = short, 2 = long) */
738 32, /* bitsize */
739 TRUE, /* pc_relative */
740 0, /* bitpos */
741 complain_overflow_dont, /* complain_on_overflow */
742 bfd_elf_generic_reloc, /* special_function */
743 "R_ARM_GOT_PREL", /* name */
744 FALSE, /* partial_inplace */
745 0xffffffff, /* src_mask */
746 0xffffffff, /* dst_mask */
747 TRUE); /* pcrel_offset */
917583ad 748
eb043451
PB		 749static reloc_howto_type *
750elf32_arm_howto_from_type (unsigned int r_type)
252b5132 751{
eb043451
PB		 752 if (r_type < NUM_ELEM (elf32_arm_howto_table))
753 return &elf32_arm_howto_table[r_type];
754
252b5132
RH		 755 switch (r_type)
756 {
eb043451
PB		 757 case R_ARM_GOT_PREL:
758 return &elf32_arm_got_prel;
759
252b5132 760 case R_ARM_GNU_VTINHERIT:
eb043451 761 return &elf32_arm_vtinherit_howto;
3e932841 762
252b5132 763 case R_ARM_GNU_VTENTRY:
eb043451 764 return &elf32_arm_vtentry_howto;
3e932841 765
252b5132 766 case R_ARM_THM_PC11:
eb043451 767 return &elf32_arm_thm_pc11_howto;
3e932841 768
252b5132 769 case R_ARM_THM_PC9:
eb043451 770 return &elf32_arm_thm_pc9_howto;
3e932841 771
252b5132 772 default:
eb043451 773 return NULL;
252b5132
RH		 774 }
775}
3e932841 776
eb043451
PB		 777static void
778elf32_arm_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED, arelent * bfd_reloc,
779 Elf_Internal_Rela * elf_reloc)
780{
781 unsigned int r_type;
782
783 r_type = ELF32_R_TYPE (elf_reloc->r_info);
784 bfd_reloc->howto = elf32_arm_howto_from_type (r_type);
785}
786
252b5132
RH		 787struct elf32_arm_reloc_map
788 {
789 bfd_reloc_code_real_type bfd_reloc_val;
790 unsigned char elf_reloc_val;
791 };
792
eb043451 793/* All entries in this list must also be present in elf32_arm_howto_table. */
252b5132 794static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] =
917583ad
NC		 795 {
796 {BFD_RELOC_NONE, R_ARM_NONE},
797 {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24},
798 {BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25},
799 {BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22},
800 {BFD_RELOC_32, R_ARM_ABS32},
801 {BFD_RELOC_32_PCREL, R_ARM_REL32},
802 {BFD_RELOC_8, R_ARM_ABS8},
803 {BFD_RELOC_16, R_ARM_ABS16},
804 {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12},
805 {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5},
806 {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22},
807 {BFD_RELOC_ARM_COPY, R_ARM_COPY},
808 {BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT},
809 {BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT},
810 {BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE},
811 {BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF},
812 {BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC},
813 {BFD_RELOC_ARM_GOT32, R_ARM_GOT32},
db6579d4 814 {BFD_RELOC_ARM_PLT32, R_ARM_PLT32},
9c504268 815 {BFD_RELOC_ARM_TARGET1, R_ARM_TARGET1},
db6579d4 816 {BFD_RELOC_ARM_ROSEGREL32, R_ARM_ROSEGREL32},
eb043451
PB		 817 {BFD_RELOC_ARM_SBREL32, R_ARM_SBREL32},
818 {BFD_RELOC_ARM_PREL31, R_ARM_PREL31},
819 {BFD_RELOC_ARM_TARGET2, R_ARM_TARGET2}
917583ad 820 };
252b5132
RH		 821
822static reloc_howto_type *
823elf32_arm_reloc_type_lookup (abfd, code)
5f771d47 824 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 825 bfd_reloc_code_real_type code;
826{
827 unsigned int i;
828
829 switch (code)
830 {
831 case BFD_RELOC_VTABLE_INHERIT:
832 return & elf32_arm_vtinherit_howto;
833
834 case BFD_RELOC_VTABLE_ENTRY:
835 return & elf32_arm_vtentry_howto;
836
837 case BFD_RELOC_THUMB_PCREL_BRANCH12:
838 return & elf32_arm_thm_pc11_howto;
839
840 case BFD_RELOC_THUMB_PCREL_BRANCH9:
841 return & elf32_arm_thm_pc9_howto;
842
843 default:
844 for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++)
845 if (elf32_arm_reloc_map[i].bfd_reloc_val == code)
846 return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val];
3e932841 847
252b5132
RH		 848 return NULL;
849 }
850}
851
c5fccbec 852/* Support for core dump NOTE sections */
b34976b6 853static bfd_boolean
c5fccbec
DJ		 854elf32_arm_nabi_grok_prstatus (abfd, note)
855 bfd *abfd;
856 Elf_Internal_Note *note;
857{
858 int offset;
eea6121a 859 size_t size;
c5fccbec
DJ		 860
861 switch (note->descsz)
862 {
863 default:
b34976b6 864 return FALSE;
c5fccbec
DJ		 865
866 case 148: /* Linux/ARM 32-bit*/
867 /* pr_cursig */
868 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
869
870 /* pr_pid */
871 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
872
873 /* pr_reg */
874 offset = 72;
eea6121a 875 size = 72;
c5fccbec
DJ		 876
877 break;
878 }
879
880 /* Make a ".reg/999" section. */
881 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 882 size, note->descpos + offset);
c5fccbec
DJ		 883}
884
b34976b6 885static bfd_boolean
c5fccbec
DJ		 886elf32_arm_nabi_grok_psinfo (abfd, note)
887 bfd *abfd;
888 Elf_Internal_Note *note;
889{
890 switch (note->descsz)
891 {
892 default:
b34976b6 893 return FALSE;
c5fccbec
DJ		 894
895 case 124: /* Linux/ARM elf_prpsinfo */
896 elf_tdata (abfd)->core_program
897 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
898 elf_tdata (abfd)->core_command
899 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
900 }
901
902 /* Note that for some reason, a spurious space is tacked
903 onto the end of the args in some (at least one anyway)
904 implementations, so strip it off if it exists. */
905
906 {
907 char *command = elf_tdata (abfd)->core_command;
908 int n = strlen (command);
909
910 if (0 < n && command[n - 1] == ' ')
911 command[n - 1] = '\0';
912 }
913
b34976b6 914 return TRUE;
c5fccbec
DJ		 915}
916
e5a52504
MM		 917#define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec
918#define TARGET_LITTLE_NAME "elf32-littlearm"
919#define TARGET_BIG_SYM bfd_elf32_bigarm_vec
920#define TARGET_BIG_NAME "elf32-bigarm"
921
c5fccbec
DJ		 922#define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus
923#define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo
924
252b5132 925#include "elf32-arm.h"
e5a52504
MM		 926
927/* Symbian OS Targets */
928
929#undef TARGET_LITTLE_SYM
930#define TARGET_LITTLE_SYM bfd_elf32_littlearm_symbian_vec
931#undef TARGET_LITTLE_NAME
932#define TARGET_LITTLE_NAME "elf32-littlearm-symbian"
933#undef TARGET_BIG_SYM
934#define TARGET_BIG_SYM bfd_elf32_bigarm_symbian_vec
935#undef TARGET_BIG_NAME
936#define TARGET_BIG_NAME "elf32-bigarm-symbian"
937
938/* Like elf32_arm_link_hash_table_create -- but overrides
939 appropriately for Symbian OS. */
940static struct bfd_link_hash_table *
941elf32_arm_symbian_link_hash_table_create (bfd *abfd)
942{
943 struct bfd_link_hash_table *ret;
944
945 ret = elf32_arm_link_hash_table_create (abfd);
946 if (ret)
947 {
948 struct elf32_arm_link_hash_table *htab
949 = (struct elf32_arm_link_hash_table *)ret;
950 /* There is no PLT header for Symbian OS. */
951 htab->plt_header_size = 0;
952 /* The PLT entries are each three instructions. */
953 htab->plt_entry_size = 4 * NUM_ELEM (elf32_arm_symbian_plt_entry);
954 htab->symbian_p = 1;
955 }
956 return ret;
957}
958
959/* In a BPABI executable, the dynamic linking sections do not go in
960 the loadable read-only segment. The post-linker may wish to refer
961 to these sections, but they are not part of the final program
962 image. */
963static struct bfd_elf_special_section const
964 elf32_arm_symbian_special_sections[]=
965{
966 { ".dynamic", 8, 0, SHT_DYNAMIC, 0 },
967 { ".dynstr", 7, 0, SHT_STRTAB, 0 },
968 { ".dynsym", 7, 0, SHT_DYNSYM, 0 },
969 { ".got", 4, 0, SHT_PROGBITS, 0 },
970 { ".hash", 5, 0, SHT_HASH, 0 },
971 { NULL, 0, 0, 0, 0 }
972};
973
974static bfd_boolean
975elf32_arm_symbian_modify_segment_map
976 PARAMS ((bfd *, struct bfd_link_info *));
977
978static bfd_boolean
979elf32_arm_symbian_modify_segment_map (abfd, info)
980 bfd *abfd;
981 struct bfd_link_info *info ATTRIBUTE_UNUSED;
982{
983 struct elf_segment_map *m;
229fcec5 984 asection *dynsec;
e5a52504
MM		 985
986 /* The first PT_LOAD segment will have the program headers and file
987 headers in it by default -- but BPABI object files should not
988 include these headers in any loadable segment. */
989 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
990 if (m->p_type == PT_LOAD)
991 {
992 m->includes_filehdr = 0;
993 m->includes_phdrs = 0;
994 }
229fcec5
MM		 995
996 /* BPABI shared libraries and executables should have a PT_DYNAMIC
997 segment. However, because the .dynamic section is not marked
998 with SEC_LOAD, the generic ELF code will not create such a
999 segment. */
1000 dynsec = bfd_get_section_by_name (abfd, ".dynamic");
1001 if (dynsec)
1002 {
1003 m = _bfd_elf_make_dynamic_segment (abfd, dynsec);
1004 m->next = elf_tdata (abfd)->segment_map;
1005 elf_tdata (abfd)->segment_map = m;
1006 }
1007
e5a52504
MM		 1008 return TRUE;
1009}
1010
1011#undef elf32_bed
1012#define elf32_bed elf32_arm_symbian_bed
1013
1014#undef ELF_DYNAMIC_SEC_FLAGS
1015#define ELF_DYNAMIC_SEC_FLAGS \
1016 (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED)
1017
1018#undef bfd_elf32_bfd_link_hash_table_create
1019#define bfd_elf32_bfd_link_hash_table_create \
1020 elf32_arm_symbian_link_hash_table_create
1021
1022#undef elf_backend_special_sections
1023#define elf_backend_special_sections elf32_arm_symbian_special_sections
1024
1025#undef elf_backend_modify_segment_map
1026#define elf_backend_modify_segment_map elf32_arm_symbian_modify_segment_map
1027
1028/* There is no .got section for BPABI objects, and hence no header. */
1029#undef elf_backend_got_header_size
1030#define elf_backend_got_header_size 0
1031
229fcec5
MM		 1032/* Similarly, there is no .got.plt section. */
1033#undef elf_backend_want_got_plt
1034#define elf_backend_want_got_plt 0
1035
e5a52504
MM		 1036#include "elf32-target.h"
1037
GDB Binutils - Deliverables
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