Commit | Line | Data |
---|---|---|
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 RH |
31 | |
32 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec | |
33 | #define TARGET_LITTLE_NAME "elf32-littlearm" | |
34 | #define TARGET_BIG_SYM bfd_elf32_bigarm_vec | |
35 | #define TARGET_BIG_NAME "elf32-bigarm" | |
36 | ||
37 | #define elf_info_to_howto 0 | |
ba96a88f | 38 | #define elf_info_to_howto_rel elf32_arm_info_to_howto |
252b5132 | 39 | |
ba96a88f NC |
40 | #define ARM_ELF_ABI_VERSION 0 |
41 | #define ARM_ELF_OS_ABI_VERSION ELFOSABI_ARM | |
252b5132 RH |
42 | |
43 | static reloc_howto_type * elf32_arm_reloc_type_lookup | |
44 | PARAMS ((bfd * abfd, bfd_reloc_code_real_type code)); | |
b34976b6 | 45 | static bfd_boolean elf32_arm_nabi_grok_prstatus |
2e67030c | 46 | PARAMS ((bfd *abfd, Elf_Internal_Note *note)); |
b34976b6 | 47 | static bfd_boolean elf32_arm_nabi_grok_psinfo |
2e67030c | 48 | PARAMS ((bfd *abfd, Elf_Internal_Note *note)); |
252b5132 | 49 | |
dfc5f959 | 50 | /* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g. |
3e932841 KH |
51 | R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO |
52 | in that slot. */ | |
dfc5f959 | 53 | |
252b5132 RH |
54 | static reloc_howto_type elf32_arm_howto_table[] = |
55 | { | |
56 | /* No relocation */ | |
57 | HOWTO (R_ARM_NONE, /* type */ | |
58 | 0, /* rightshift */ | |
59 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
60 | 0, /* bitsize */ | |
b34976b6 | 61 | FALSE, /* pc_relative */ |
252b5132 RH |
62 | 0, /* bitpos */ |
63 | complain_overflow_dont,/* complain_on_overflow */ | |
64 | bfd_elf_generic_reloc, /* special_function */ | |
65 | "R_ARM_NONE", /* name */ | |
b34976b6 | 66 | FALSE, /* partial_inplace */ |
252b5132 RH |
67 | 0, /* src_mask */ |
68 | 0, /* dst_mask */ | |
b34976b6 | 69 | FALSE), /* pcrel_offset */ |
252b5132 RH |
70 | |
71 | HOWTO (R_ARM_PC24, /* type */ | |
72 | 2, /* rightshift */ | |
73 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
74 | 24, /* bitsize */ | |
b34976b6 | 75 | TRUE, /* pc_relative */ |
252b5132 RH |
76 | 0, /* bitpos */ |
77 | complain_overflow_signed,/* complain_on_overflow */ | |
78 | bfd_elf_generic_reloc, /* special_function */ | |
79 | "R_ARM_PC24", /* name */ | |
b34976b6 | 80 | FALSE, /* partial_inplace */ |
252b5132 RH |
81 | 0x00ffffff, /* src_mask */ |
82 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 83 | TRUE), /* pcrel_offset */ |
252b5132 RH |
84 | |
85 | /* 32 bit absolute */ | |
86 | HOWTO (R_ARM_ABS32, /* type */ | |
87 | 0, /* rightshift */ | |
88 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
89 | 32, /* bitsize */ | |
b34976b6 | 90 | FALSE, /* pc_relative */ |
252b5132 RH |
91 | 0, /* bitpos */ |
92 | complain_overflow_bitfield,/* complain_on_overflow */ | |
93 | bfd_elf_generic_reloc, /* special_function */ | |
94 | "R_ARM_ABS32", /* name */ | |
b34976b6 | 95 | FALSE, /* partial_inplace */ |
252b5132 RH |
96 | 0xffffffff, /* src_mask */ |
97 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 98 | FALSE), /* pcrel_offset */ |
252b5132 RH |
99 | |
100 | /* standard 32bit pc-relative reloc */ | |
101 | HOWTO (R_ARM_REL32, /* type */ | |
102 | 0, /* rightshift */ | |
103 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
104 | 32, /* bitsize */ | |
b34976b6 | 105 | TRUE, /* pc_relative */ |
252b5132 RH |
106 | 0, /* bitpos */ |
107 | complain_overflow_bitfield,/* complain_on_overflow */ | |
108 | bfd_elf_generic_reloc, /* special_function */ | |
109 | "R_ARM_REL32", /* name */ | |
b34976b6 | 110 | FALSE, /* partial_inplace */ |
252b5132 RH |
111 | 0xffffffff, /* src_mask */ |
112 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 113 | TRUE), /* pcrel_offset */ |
252b5132 RH |
114 | |
115 | /* 8 bit absolute */ | |
116 | HOWTO (R_ARM_PC13, /* type */ | |
117 | 0, /* rightshift */ | |
118 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
119 | 8, /* bitsize */ | |
b34976b6 | 120 | FALSE, /* pc_relative */ |
252b5132 RH |
121 | 0, /* bitpos */ |
122 | complain_overflow_bitfield,/* complain_on_overflow */ | |
123 | bfd_elf_generic_reloc, /* special_function */ | |
124 | "R_ARM_PC13", /* name */ | |
b34976b6 | 125 | FALSE, /* partial_inplace */ |
252b5132 RH |
126 | 0x000000ff, /* src_mask */ |
127 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 128 | FALSE), /* pcrel_offset */ |
252b5132 RH |
129 | |
130 | /* 16 bit absolute */ | |
131 | HOWTO (R_ARM_ABS16, /* type */ | |
132 | 0, /* rightshift */ | |
133 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
134 | 16, /* bitsize */ | |
b34976b6 | 135 | FALSE, /* pc_relative */ |
252b5132 RH |
136 | 0, /* bitpos */ |
137 | complain_overflow_bitfield,/* complain_on_overflow */ | |
138 | bfd_elf_generic_reloc, /* special_function */ | |
139 | "R_ARM_ABS16", /* name */ | |
b34976b6 | 140 | FALSE, /* partial_inplace */ |
8d0da3c2 DD |
141 | 0x0000ffff, /* src_mask */ |
142 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 143 | FALSE), /* pcrel_offset */ |
252b5132 RH |
144 | |
145 | /* 12 bit absolute */ | |
146 | HOWTO (R_ARM_ABS12, /* type */ | |
147 | 0, /* rightshift */ | |
148 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
149 | 12, /* bitsize */ | |
b34976b6 | 150 | FALSE, /* pc_relative */ |
252b5132 RH |
151 | 0, /* bitpos */ |
152 | complain_overflow_bitfield,/* complain_on_overflow */ | |
153 | bfd_elf_generic_reloc, /* special_function */ | |
154 | "R_ARM_ABS12", /* name */ | |
b34976b6 | 155 | FALSE, /* partial_inplace */ |
252b5132 RH |
156 | 0x000008ff, /* src_mask */ |
157 | 0x000008ff, /* dst_mask */ | |
b34976b6 | 158 | FALSE), /* pcrel_offset */ |
252b5132 RH |
159 | |
160 | HOWTO (R_ARM_THM_ABS5, /* type */ | |
161 | 6, /* rightshift */ | |
162 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
163 | 5, /* bitsize */ | |
b34976b6 | 164 | FALSE, /* pc_relative */ |
252b5132 RH |
165 | 0, /* bitpos */ |
166 | complain_overflow_bitfield,/* complain_on_overflow */ | |
167 | bfd_elf_generic_reloc, /* special_function */ | |
168 | "R_ARM_THM_ABS5", /* name */ | |
b34976b6 | 169 | FALSE, /* partial_inplace */ |
252b5132 RH |
170 | 0x000007e0, /* src_mask */ |
171 | 0x000007e0, /* dst_mask */ | |
b34976b6 | 172 | FALSE), /* pcrel_offset */ |
252b5132 RH |
173 | |
174 | /* 8 bit absolute */ | |
175 | HOWTO (R_ARM_ABS8, /* type */ | |
176 | 0, /* rightshift */ | |
177 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
178 | 8, /* bitsize */ | |
b34976b6 | 179 | FALSE, /* pc_relative */ |
252b5132 RH |
180 | 0, /* bitpos */ |
181 | complain_overflow_bitfield,/* complain_on_overflow */ | |
182 | bfd_elf_generic_reloc, /* special_function */ | |
183 | "R_ARM_ABS8", /* name */ | |
b34976b6 | 184 | FALSE, /* partial_inplace */ |
252b5132 RH |
185 | 0x000000ff, /* src_mask */ |
186 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 187 | FALSE), /* pcrel_offset */ |
252b5132 RH |
188 | |
189 | HOWTO (R_ARM_SBREL32, /* type */ | |
190 | 0, /* rightshift */ | |
191 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
192 | 0, /* bitsize */ | |
b34976b6 | 193 | FALSE, /* pc_relative */ |
252b5132 RH |
194 | 0, /* bitpos */ |
195 | complain_overflow_dont,/* complain_on_overflow */ | |
196 | bfd_elf_generic_reloc, /* special_function */ | |
197 | "R_ARM_SBREL32", /* name */ | |
b34976b6 | 198 | FALSE, /* partial_inplace */ |
252b5132 RH |
199 | 0, /* src_mask */ |
200 | 0, /* dst_mask */ | |
b34976b6 | 201 | FALSE), /* pcrel_offset */ |
252b5132 RH |
202 | |
203 | HOWTO (R_ARM_THM_PC22, /* type */ | |
204 | 1, /* rightshift */ | |
205 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
206 | 23, /* bitsize */ | |
b34976b6 | 207 | TRUE, /* pc_relative */ |
252b5132 RH |
208 | 0, /* bitpos */ |
209 | complain_overflow_signed,/* complain_on_overflow */ | |
210 | bfd_elf_generic_reloc, /* special_function */ | |
211 | "R_ARM_THM_PC22", /* name */ | |
b34976b6 | 212 | FALSE, /* partial_inplace */ |
252b5132 RH |
213 | 0x07ff07ff, /* src_mask */ |
214 | 0x07ff07ff, /* dst_mask */ | |
b34976b6 | 215 | TRUE), /* pcrel_offset */ |
252b5132 RH |
216 | |
217 | HOWTO (R_ARM_THM_PC8, /* type */ | |
218 | 1, /* rightshift */ | |
219 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
220 | 8, /* bitsize */ | |
b34976b6 | 221 | TRUE, /* pc_relative */ |
252b5132 RH |
222 | 0, /* bitpos */ |
223 | complain_overflow_signed,/* complain_on_overflow */ | |
224 | bfd_elf_generic_reloc, /* special_function */ | |
225 | "R_ARM_THM_PC8", /* name */ | |
b34976b6 | 226 | FALSE, /* partial_inplace */ |
252b5132 RH |
227 | 0x000000ff, /* src_mask */ |
228 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 229 | TRUE), /* pcrel_offset */ |
252b5132 RH |
230 | |
231 | HOWTO (R_ARM_AMP_VCALL9, /* type */ | |
232 | 1, /* rightshift */ | |
233 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
234 | 8, /* bitsize */ | |
b34976b6 | 235 | TRUE, /* pc_relative */ |
252b5132 RH |
236 | 0, /* bitpos */ |
237 | complain_overflow_signed,/* complain_on_overflow */ | |
238 | bfd_elf_generic_reloc, /* special_function */ | |
239 | "R_ARM_AMP_VCALL9", /* name */ | |
b34976b6 | 240 | FALSE, /* partial_inplace */ |
252b5132 RH |
241 | 0x000000ff, /* src_mask */ |
242 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 243 | TRUE), /* pcrel_offset */ |
252b5132 RH |
244 | |
245 | HOWTO (R_ARM_SWI24, /* type */ | |
246 | 0, /* rightshift */ | |
247 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
248 | 0, /* bitsize */ | |
b34976b6 | 249 | FALSE, /* pc_relative */ |
252b5132 RH |
250 | 0, /* bitpos */ |
251 | complain_overflow_signed,/* complain_on_overflow */ | |
252 | bfd_elf_generic_reloc, /* special_function */ | |
253 | "R_ARM_SWI24", /* name */ | |
b34976b6 | 254 | FALSE, /* partial_inplace */ |
252b5132 RH |
255 | 0x00000000, /* src_mask */ |
256 | 0x00000000, /* dst_mask */ | |
b34976b6 | 257 | FALSE), /* pcrel_offset */ |
252b5132 RH |
258 | |
259 | HOWTO (R_ARM_THM_SWI8, /* type */ | |
260 | 0, /* rightshift */ | |
261 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
262 | 0, /* bitsize */ | |
b34976b6 | 263 | FALSE, /* pc_relative */ |
252b5132 RH |
264 | 0, /* bitpos */ |
265 | complain_overflow_signed,/* complain_on_overflow */ | |
266 | bfd_elf_generic_reloc, /* special_function */ | |
267 | "R_ARM_SWI8", /* name */ | |
b34976b6 | 268 | FALSE, /* partial_inplace */ |
252b5132 RH |
269 | 0x00000000, /* src_mask */ |
270 | 0x00000000, /* dst_mask */ | |
b34976b6 | 271 | FALSE), /* pcrel_offset */ |
252b5132 | 272 | |
dfc5f959 | 273 | /* BLX instruction for the ARM. */ |
252b5132 | 274 | HOWTO (R_ARM_XPC25, /* type */ |
dfc5f959 NC |
275 | 2, /* rightshift */ |
276 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
277 | 25, /* bitsize */ | |
b34976b6 | 278 | TRUE, /* pc_relative */ |
252b5132 RH |
279 | 0, /* bitpos */ |
280 | complain_overflow_signed,/* complain_on_overflow */ | |
281 | bfd_elf_generic_reloc, /* special_function */ | |
282 | "R_ARM_XPC25", /* name */ | |
b34976b6 | 283 | FALSE, /* partial_inplace */ |
dfc5f959 NC |
284 | 0x00ffffff, /* src_mask */ |
285 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 286 | TRUE), /* pcrel_offset */ |
3e932841 | 287 | |
dfc5f959 | 288 | /* BLX instruction for the Thumb. */ |
252b5132 | 289 | HOWTO (R_ARM_THM_XPC22, /* type */ |
dfc5f959 NC |
290 | 2, /* rightshift */ |
291 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
292 | 22, /* bitsize */ | |
b34976b6 | 293 | TRUE, /* pc_relative */ |
252b5132 RH |
294 | 0, /* bitpos */ |
295 | complain_overflow_signed,/* complain_on_overflow */ | |
296 | bfd_elf_generic_reloc, /* special_function */ | |
297 | "R_ARM_THM_XPC22", /* name */ | |
b34976b6 | 298 | FALSE, /* partial_inplace */ |
dfc5f959 NC |
299 | 0x07ff07ff, /* src_mask */ |
300 | 0x07ff07ff, /* dst_mask */ | |
b34976b6 | 301 | TRUE), /* pcrel_offset */ |
3e932841 | 302 | |
252b5132 RH |
303 | /* These next three relocs are not defined, but we need to fill the space. */ |
304 | ||
305 | HOWTO (R_ARM_NONE, /* type */ | |
306 | 0, /* rightshift */ | |
307 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
308 | 0, /* bitsize */ | |
b34976b6 | 309 | FALSE, /* pc_relative */ |
252b5132 RH |
310 | 0, /* bitpos */ |
311 | complain_overflow_dont,/* complain_on_overflow */ | |
312 | bfd_elf_generic_reloc, /* special_function */ | |
313 | "R_ARM_unknown_17", /* name */ | |
b34976b6 | 314 | FALSE, /* partial_inplace */ |
252b5132 RH |
315 | 0, /* src_mask */ |
316 | 0, /* dst_mask */ | |
b34976b6 | 317 | FALSE), /* pcrel_offset */ |
252b5132 RH |
318 | |
319 | HOWTO (R_ARM_NONE, /* type */ | |
320 | 0, /* rightshift */ | |
321 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
322 | 0, /* bitsize */ | |
b34976b6 | 323 | FALSE, /* pc_relative */ |
252b5132 RH |
324 | 0, /* bitpos */ |
325 | complain_overflow_dont,/* complain_on_overflow */ | |
326 | bfd_elf_generic_reloc, /* special_function */ | |
327 | "R_ARM_unknown_18", /* name */ | |
b34976b6 | 328 | FALSE, /* partial_inplace */ |
252b5132 RH |
329 | 0, /* src_mask */ |
330 | 0, /* dst_mask */ | |
b34976b6 | 331 | FALSE), /* pcrel_offset */ |
252b5132 RH |
332 | |
333 | HOWTO (R_ARM_NONE, /* type */ | |
334 | 0, /* rightshift */ | |
335 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
336 | 0, /* bitsize */ | |
b34976b6 | 337 | FALSE, /* pc_relative */ |
252b5132 RH |
338 | 0, /* bitpos */ |
339 | complain_overflow_dont,/* complain_on_overflow */ | |
340 | bfd_elf_generic_reloc, /* special_function */ | |
341 | "R_ARM_unknown_19", /* name */ | |
b34976b6 | 342 | FALSE, /* partial_inplace */ |
252b5132 RH |
343 | 0, /* src_mask */ |
344 | 0, /* dst_mask */ | |
b34976b6 | 345 | FALSE), /* pcrel_offset */ |
252b5132 RH |
346 | |
347 | /* Relocs used in ARM Linux */ | |
3e932841 | 348 | |
252b5132 RH |
349 | HOWTO (R_ARM_COPY, /* type */ |
350 | 0, /* rightshift */ | |
351 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
352 | 32, /* bitsize */ | |
b34976b6 | 353 | FALSE, /* pc_relative */ |
252b5132 RH |
354 | 0, /* bitpos */ |
355 | complain_overflow_bitfield,/* complain_on_overflow */ | |
356 | bfd_elf_generic_reloc, /* special_function */ | |
357 | "R_ARM_COPY", /* name */ | |
b34976b6 | 358 | TRUE, /* partial_inplace */ |
252b5132 RH |
359 | 0xffffffff, /* src_mask */ |
360 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 361 | FALSE), /* pcrel_offset */ |
252b5132 RH |
362 | |
363 | HOWTO (R_ARM_GLOB_DAT, /* type */ | |
364 | 0, /* rightshift */ | |
365 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
366 | 32, /* bitsize */ | |
b34976b6 | 367 | FALSE, /* pc_relative */ |
252b5132 RH |
368 | 0, /* bitpos */ |
369 | complain_overflow_bitfield,/* complain_on_overflow */ | |
370 | bfd_elf_generic_reloc, /* special_function */ | |
371 | "R_ARM_GLOB_DAT", /* name */ | |
b34976b6 | 372 | TRUE, /* partial_inplace */ |
252b5132 RH |
373 | 0xffffffff, /* src_mask */ |
374 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 375 | FALSE), /* pcrel_offset */ |
3e932841 | 376 | |
252b5132 RH |
377 | HOWTO (R_ARM_JUMP_SLOT, /* type */ |
378 | 0, /* rightshift */ | |
379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
380 | 32, /* bitsize */ | |
b34976b6 | 381 | FALSE, /* pc_relative */ |
252b5132 RH |
382 | 0, /* bitpos */ |
383 | complain_overflow_bitfield,/* complain_on_overflow */ | |
384 | bfd_elf_generic_reloc, /* special_function */ | |
385 | "R_ARM_JUMP_SLOT", /* name */ | |
b34976b6 | 386 | TRUE, /* partial_inplace */ |
252b5132 RH |
387 | 0xffffffff, /* src_mask */ |
388 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 389 | FALSE), /* pcrel_offset */ |
3e932841 | 390 | |
252b5132 RH |
391 | HOWTO (R_ARM_RELATIVE, /* type */ |
392 | 0, /* rightshift */ | |
393 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
394 | 32, /* bitsize */ | |
b34976b6 | 395 | FALSE, /* pc_relative */ |
252b5132 RH |
396 | 0, /* bitpos */ |
397 | complain_overflow_bitfield,/* complain_on_overflow */ | |
398 | bfd_elf_generic_reloc, /* special_function */ | |
399 | "R_ARM_RELATIVE", /* name */ | |
b34976b6 | 400 | TRUE, /* partial_inplace */ |
252b5132 RH |
401 | 0xffffffff, /* src_mask */ |
402 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 403 | FALSE), /* pcrel_offset */ |
3e932841 | 404 | |
252b5132 RH |
405 | HOWTO (R_ARM_GOTOFF, /* type */ |
406 | 0, /* rightshift */ | |
407 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
408 | 32, /* bitsize */ | |
b34976b6 | 409 | FALSE, /* pc_relative */ |
252b5132 RH |
410 | 0, /* bitpos */ |
411 | complain_overflow_bitfield,/* complain_on_overflow */ | |
412 | bfd_elf_generic_reloc, /* special_function */ | |
413 | "R_ARM_GOTOFF", /* name */ | |
b34976b6 | 414 | TRUE, /* partial_inplace */ |
252b5132 RH |
415 | 0xffffffff, /* src_mask */ |
416 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 417 | FALSE), /* pcrel_offset */ |
3e932841 | 418 | |
252b5132 RH |
419 | HOWTO (R_ARM_GOTPC, /* type */ |
420 | 0, /* rightshift */ | |
421 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
422 | 32, /* bitsize */ | |
b34976b6 | 423 | TRUE, /* pc_relative */ |
252b5132 RH |
424 | 0, /* bitpos */ |
425 | complain_overflow_bitfield,/* complain_on_overflow */ | |
426 | bfd_elf_generic_reloc, /* special_function */ | |
427 | "R_ARM_GOTPC", /* name */ | |
b34976b6 | 428 | TRUE, /* partial_inplace */ |
252b5132 RH |
429 | 0xffffffff, /* src_mask */ |
430 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 431 | TRUE), /* pcrel_offset */ |
3e932841 | 432 | |
252b5132 RH |
433 | HOWTO (R_ARM_GOT32, /* type */ |
434 | 0, /* rightshift */ | |
435 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
436 | 32, /* bitsize */ | |
b34976b6 | 437 | FALSE, /* pc_relative */ |
252b5132 RH |
438 | 0, /* bitpos */ |
439 | complain_overflow_bitfield,/* complain_on_overflow */ | |
440 | bfd_elf_generic_reloc, /* special_function */ | |
441 | "R_ARM_GOT32", /* name */ | |
b34976b6 | 442 | TRUE, /* partial_inplace */ |
252b5132 RH |
443 | 0xffffffff, /* src_mask */ |
444 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 445 | FALSE), /* pcrel_offset */ |
3e932841 | 446 | |
252b5132 RH |
447 | HOWTO (R_ARM_PLT32, /* type */ |
448 | 2, /* rightshift */ | |
449 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
450 | 26, /* bitsize */ | |
b34976b6 | 451 | TRUE, /* pc_relative */ |
252b5132 RH |
452 | 0, /* bitpos */ |
453 | complain_overflow_bitfield,/* complain_on_overflow */ | |
454 | bfd_elf_generic_reloc, /* special_function */ | |
455 | "R_ARM_PLT32", /* name */ | |
b34976b6 | 456 | TRUE, /* partial_inplace */ |
252b5132 RH |
457 | 0x00ffffff, /* src_mask */ |
458 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 459 | TRUE), /* pcrel_offset */ |
3e932841 KH |
460 | |
461 | /* End of relocs used in ARM Linux */ | |
252b5132 RH |
462 | |
463 | HOWTO (R_ARM_RREL32, /* type */ | |
464 | 0, /* rightshift */ | |
465 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
466 | 0, /* bitsize */ | |
b34976b6 | 467 | FALSE, /* pc_relative */ |
252b5132 RH |
468 | 0, /* bitpos */ |
469 | complain_overflow_dont,/* complain_on_overflow */ | |
470 | bfd_elf_generic_reloc, /* special_function */ | |
471 | "R_ARM_RREL32", /* name */ | |
b34976b6 | 472 | FALSE, /* partial_inplace */ |
252b5132 RH |
473 | 0, /* src_mask */ |
474 | 0, /* dst_mask */ | |
b34976b6 | 475 | FALSE), /* pcrel_offset */ |
252b5132 RH |
476 | |
477 | HOWTO (R_ARM_RABS32, /* type */ | |
478 | 0, /* rightshift */ | |
479 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
480 | 0, /* bitsize */ | |
b34976b6 | 481 | FALSE, /* pc_relative */ |
252b5132 RH |
482 | 0, /* bitpos */ |
483 | complain_overflow_dont,/* complain_on_overflow */ | |
484 | bfd_elf_generic_reloc, /* special_function */ | |
485 | "R_ARM_RABS32", /* name */ | |
b34976b6 | 486 | FALSE, /* partial_inplace */ |
252b5132 RH |
487 | 0, /* src_mask */ |
488 | 0, /* dst_mask */ | |
b34976b6 | 489 | FALSE), /* pcrel_offset */ |
252b5132 RH |
490 | |
491 | HOWTO (R_ARM_RPC24, /* type */ | |
492 | 0, /* rightshift */ | |
493 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
494 | 0, /* bitsize */ | |
b34976b6 | 495 | FALSE, /* pc_relative */ |
252b5132 RH |
496 | 0, /* bitpos */ |
497 | complain_overflow_dont,/* complain_on_overflow */ | |
498 | bfd_elf_generic_reloc, /* special_function */ | |
499 | "R_ARM_RPC24", /* name */ | |
b34976b6 | 500 | FALSE, /* partial_inplace */ |
252b5132 RH |
501 | 0, /* src_mask */ |
502 | 0, /* dst_mask */ | |
b34976b6 | 503 | FALSE), /* pcrel_offset */ |
252b5132 RH |
504 | |
505 | HOWTO (R_ARM_RBASE, /* type */ | |
506 | 0, /* rightshift */ | |
507 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
508 | 0, /* bitsize */ | |
b34976b6 | 509 | FALSE, /* pc_relative */ |
252b5132 RH |
510 | 0, /* bitpos */ |
511 | complain_overflow_dont,/* complain_on_overflow */ | |
512 | bfd_elf_generic_reloc, /* special_function */ | |
513 | "R_ARM_RBASE", /* name */ | |
b34976b6 | 514 | FALSE, /* partial_inplace */ |
252b5132 RH |
515 | 0, /* src_mask */ |
516 | 0, /* dst_mask */ | |
b34976b6 | 517 | FALSE), /* pcrel_offset */ |
252b5132 | 518 | |
8375c36b PB |
519 | HOWTO (R_ARM_ALU_PCREL7_0, /* type */ |
520 | 0, /* rightshift */ | |
521 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
522 | 12, /* bitsize */ | |
523 | TRUE, /* pc_relative */ | |
524 | 0, /* bitpos */ | |
525 | complain_overflow_dont,/* complain_on_overflow */ | |
526 | bfd_elf_generic_reloc, /* special_function */ | |
527 | "R_ARM_ALU_PCREL_7_0", /* name */ | |
528 | FALSE, /* partial_inplace */ | |
529 | 0x00000fff, /* src_mask */ | |
530 | 0x00000fff, /* dst_mask */ | |
531 | TRUE), /* pcrel_offset */ | |
532 | ||
533 | HOWTO (R_ARM_ALU_PCREL15_8, /* type */ | |
534 | 0, /* rightshift */ | |
535 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
536 | 12, /* bitsize */ | |
537 | TRUE, /* pc_relative */ | |
538 | 8, /* bitpos */ | |
539 | complain_overflow_dont,/* complain_on_overflow */ | |
540 | bfd_elf_generic_reloc, /* special_function */ | |
541 | "R_ARM_ALU_PCREL_15_8",/* name */ | |
542 | FALSE, /* partial_inplace */ | |
543 | 0x00000fff, /* src_mask */ | |
544 | 0x00000fff, /* dst_mask */ | |
545 | TRUE), /* pcrel_offset */ | |
546 | ||
547 | HOWTO (R_ARM_ALU_PCREL23_15, /* type */ | |
548 | 0, /* rightshift */ | |
549 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
550 | 12, /* bitsize */ | |
551 | TRUE, /* pc_relative */ | |
552 | 16, /* bitpos */ | |
553 | complain_overflow_dont,/* complain_on_overflow */ | |
554 | bfd_elf_generic_reloc, /* special_function */ | |
555 | "R_ARM_ALU_PCREL_23_15",/* name */ | |
556 | FALSE, /* partial_inplace */ | |
557 | 0x00000fff, /* src_mask */ | |
558 | 0x00000fff, /* dst_mask */ | |
559 | TRUE), /* pcrel_offset */ | |
252b5132 RH |
560 | }; |
561 | ||
562 | /* GNU extension to record C++ vtable hierarchy */ | |
563 | static reloc_howto_type elf32_arm_vtinherit_howto = | |
564 | HOWTO (R_ARM_GNU_VTINHERIT, /* type */ | |
565 | 0, /* rightshift */ | |
566 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
567 | 0, /* bitsize */ | |
b34976b6 | 568 | FALSE, /* pc_relative */ |
252b5132 RH |
569 | 0, /* bitpos */ |
570 | complain_overflow_dont, /* complain_on_overflow */ | |
571 | NULL, /* special_function */ | |
572 | "R_ARM_GNU_VTINHERIT", /* name */ | |
b34976b6 | 573 | FALSE, /* partial_inplace */ |
252b5132 RH |
574 | 0, /* src_mask */ |
575 | 0, /* dst_mask */ | |
b34976b6 | 576 | FALSE); /* pcrel_offset */ |
252b5132 RH |
577 | |
578 | /* GNU extension to record C++ vtable member usage */ | |
579 | static reloc_howto_type elf32_arm_vtentry_howto = | |
580 | HOWTO (R_ARM_GNU_VTENTRY, /* type */ | |
581 | 0, /* rightshift */ | |
582 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
583 | 0, /* bitsize */ | |
b34976b6 | 584 | FALSE, /* pc_relative */ |
252b5132 RH |
585 | 0, /* bitpos */ |
586 | complain_overflow_dont, /* complain_on_overflow */ | |
587 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
588 | "R_ARM_GNU_VTENTRY", /* name */ | |
b34976b6 | 589 | FALSE, /* partial_inplace */ |
252b5132 RH |
590 | 0, /* src_mask */ |
591 | 0, /* dst_mask */ | |
b34976b6 | 592 | FALSE); /* pcrel_offset */ |
252b5132 RH |
593 | |
594 | /* 12 bit pc relative */ | |
595 | static reloc_howto_type elf32_arm_thm_pc11_howto = | |
596 | HOWTO (R_ARM_THM_PC11, /* type */ | |
597 | 1, /* rightshift */ | |
598 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
599 | 11, /* bitsize */ | |
b34976b6 | 600 | TRUE, /* pc_relative */ |
252b5132 RH |
601 | 0, /* bitpos */ |
602 | complain_overflow_signed, /* complain_on_overflow */ | |
603 | bfd_elf_generic_reloc, /* special_function */ | |
604 | "R_ARM_THM_PC11", /* name */ | |
b34976b6 | 605 | FALSE, /* partial_inplace */ |
252b5132 RH |
606 | 0x000007ff, /* src_mask */ |
607 | 0x000007ff, /* dst_mask */ | |
b34976b6 | 608 | TRUE); /* pcrel_offset */ |
252b5132 RH |
609 | |
610 | /* 12 bit pc relative */ | |
611 | static reloc_howto_type elf32_arm_thm_pc9_howto = | |
612 | HOWTO (R_ARM_THM_PC9, /* type */ | |
613 | 1, /* rightshift */ | |
614 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
615 | 8, /* bitsize */ | |
b34976b6 | 616 | TRUE, /* pc_relative */ |
252b5132 RH |
617 | 0, /* bitpos */ |
618 | complain_overflow_signed, /* complain_on_overflow */ | |
619 | bfd_elf_generic_reloc, /* special_function */ | |
620 | "R_ARM_THM_PC9", /* name */ | |
b34976b6 | 621 | FALSE, /* partial_inplace */ |
252b5132 RH |
622 | 0x000000ff, /* src_mask */ |
623 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 624 | TRUE); /* pcrel_offset */ |
252b5132 | 625 | |
917583ad | 626 | static void elf32_arm_info_to_howto |
947216bf | 627 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
917583ad | 628 | |
252b5132 | 629 | static void |
ba96a88f | 630 | elf32_arm_info_to_howto (abfd, bfd_reloc, elf_reloc) |
5f771d47 | 631 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 | 632 | arelent * bfd_reloc; |
947216bf | 633 | Elf_Internal_Rela * elf_reloc; |
252b5132 RH |
634 | { |
635 | unsigned int r_type; | |
3e932841 | 636 | |
252b5132 RH |
637 | r_type = ELF32_R_TYPE (elf_reloc->r_info); |
638 | ||
639 | switch (r_type) | |
640 | { | |
641 | case R_ARM_GNU_VTINHERIT: | |
642 | bfd_reloc->howto = & elf32_arm_vtinherit_howto; | |
643 | break; | |
3e932841 | 644 | |
252b5132 RH |
645 | case R_ARM_GNU_VTENTRY: |
646 | bfd_reloc->howto = & elf32_arm_vtentry_howto; | |
647 | break; | |
3e932841 | 648 | |
252b5132 RH |
649 | case R_ARM_THM_PC11: |
650 | bfd_reloc->howto = & elf32_arm_thm_pc11_howto; | |
651 | break; | |
3e932841 | 652 | |
252b5132 RH |
653 | case R_ARM_THM_PC9: |
654 | bfd_reloc->howto = & elf32_arm_thm_pc9_howto; | |
655 | break; | |
3e932841 | 656 | |
252b5132 RH |
657 | default: |
658 | if (r_type >= NUM_ELEM (elf32_arm_howto_table)) | |
659 | bfd_reloc->howto = NULL; | |
660 | else | |
661 | bfd_reloc->howto = & elf32_arm_howto_table[r_type]; | |
662 | break; | |
663 | } | |
664 | } | |
3e932841 | 665 | |
252b5132 RH |
666 | struct elf32_arm_reloc_map |
667 | { | |
668 | bfd_reloc_code_real_type bfd_reloc_val; | |
669 | unsigned char elf_reloc_val; | |
670 | }; | |
671 | ||
672 | static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] = | |
917583ad NC |
673 | { |
674 | {BFD_RELOC_NONE, R_ARM_NONE}, | |
675 | {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24}, | |
676 | {BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25}, | |
677 | {BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22}, | |
678 | {BFD_RELOC_32, R_ARM_ABS32}, | |
679 | {BFD_RELOC_32_PCREL, R_ARM_REL32}, | |
680 | {BFD_RELOC_8, R_ARM_ABS8}, | |
681 | {BFD_RELOC_16, R_ARM_ABS16}, | |
682 | {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12}, | |
683 | {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5}, | |
684 | {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22}, | |
685 | {BFD_RELOC_ARM_COPY, R_ARM_COPY}, | |
686 | {BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT}, | |
687 | {BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT}, | |
688 | {BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE}, | |
689 | {BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF}, | |
690 | {BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC}, | |
691 | {BFD_RELOC_ARM_GOT32, R_ARM_GOT32}, | |
692 | {BFD_RELOC_ARM_PLT32, R_ARM_PLT32} | |
693 | }; | |
252b5132 RH |
694 | |
695 | static reloc_howto_type * | |
696 | elf32_arm_reloc_type_lookup (abfd, code) | |
5f771d47 | 697 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
698 | bfd_reloc_code_real_type code; |
699 | { | |
700 | unsigned int i; | |
701 | ||
702 | switch (code) | |
703 | { | |
704 | case BFD_RELOC_VTABLE_INHERIT: | |
705 | return & elf32_arm_vtinherit_howto; | |
706 | ||
707 | case BFD_RELOC_VTABLE_ENTRY: | |
708 | return & elf32_arm_vtentry_howto; | |
709 | ||
710 | case BFD_RELOC_THUMB_PCREL_BRANCH12: | |
711 | return & elf32_arm_thm_pc11_howto; | |
712 | ||
713 | case BFD_RELOC_THUMB_PCREL_BRANCH9: | |
714 | return & elf32_arm_thm_pc9_howto; | |
715 | ||
716 | default: | |
717 | for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++) | |
718 | if (elf32_arm_reloc_map[i].bfd_reloc_val == code) | |
719 | return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val]; | |
3e932841 | 720 | |
252b5132 RH |
721 | return NULL; |
722 | } | |
723 | } | |
724 | ||
c5fccbec | 725 | /* Support for core dump NOTE sections */ |
b34976b6 | 726 | static bfd_boolean |
c5fccbec DJ |
727 | elf32_arm_nabi_grok_prstatus (abfd, note) |
728 | bfd *abfd; | |
729 | Elf_Internal_Note *note; | |
730 | { | |
731 | int offset; | |
eea6121a | 732 | size_t size; |
c5fccbec DJ |
733 | |
734 | switch (note->descsz) | |
735 | { | |
736 | default: | |
b34976b6 | 737 | return FALSE; |
c5fccbec DJ |
738 | |
739 | case 148: /* Linux/ARM 32-bit*/ | |
740 | /* pr_cursig */ | |
741 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
742 | ||
743 | /* pr_pid */ | |
744 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
745 | ||
746 | /* pr_reg */ | |
747 | offset = 72; | |
eea6121a | 748 | size = 72; |
c5fccbec DJ |
749 | |
750 | break; | |
751 | } | |
752 | ||
753 | /* Make a ".reg/999" section. */ | |
754 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 755 | size, note->descpos + offset); |
c5fccbec DJ |
756 | } |
757 | ||
b34976b6 | 758 | static bfd_boolean |
c5fccbec DJ |
759 | elf32_arm_nabi_grok_psinfo (abfd, note) |
760 | bfd *abfd; | |
761 | Elf_Internal_Note *note; | |
762 | { | |
763 | switch (note->descsz) | |
764 | { | |
765 | default: | |
b34976b6 | 766 | return FALSE; |
c5fccbec DJ |
767 | |
768 | case 124: /* Linux/ARM elf_prpsinfo */ | |
769 | elf_tdata (abfd)->core_program | |
770 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
771 | elf_tdata (abfd)->core_command | |
772 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
773 | } | |
774 | ||
775 | /* Note that for some reason, a spurious space is tacked | |
776 | onto the end of the args in some (at least one anyway) | |
777 | implementations, so strip it off if it exists. */ | |
778 | ||
779 | { | |
780 | char *command = elf_tdata (abfd)->core_command; | |
781 | int n = strlen (command); | |
782 | ||
783 | if (0 < n && command[n - 1] == ' ') | |
784 | command[n - 1] = '\0'; | |
785 | } | |
786 | ||
b34976b6 | 787 | return TRUE; |
c5fccbec DJ |
788 | } |
789 | ||
790 | #define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus | |
791 | #define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo | |
792 | ||
252b5132 | 793 | #include "elf32-arm.h" |