Commit | Line | Data |
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252b5132 | 1 | /* 32-bit ELF support for ARM |
4e7fd91e | 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
d1f161ea | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
3e110533 | 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
252b5132 | 20 | |
7f266840 DJ |
21 | #include "elf/arm.h" |
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "libbfd.h" | |
25 | #include "elf-bfd.h" | |
26 | ||
27 | #ifndef NUM_ELEM | |
28 | #define NUM_ELEM(a) (sizeof (a) / (sizeof (a)[0])) | |
29 | #endif | |
30 | ||
7f266840 DJ |
31 | #define elf_info_to_howto 0 |
32 | #define elf_info_to_howto_rel elf32_arm_info_to_howto | |
33 | ||
34 | #define ARM_ELF_ABI_VERSION 0 | |
35 | #define ARM_ELF_OS_ABI_VERSION ELFOSABI_ARM | |
36 | ||
37 | static reloc_howto_type * elf32_arm_reloc_type_lookup | |
38 | PARAMS ((bfd * abfd, bfd_reloc_code_real_type code)); | |
39 | static bfd_boolean elf32_arm_nabi_grok_prstatus | |
40 | PARAMS ((bfd *abfd, Elf_Internal_Note *note)); | |
41 | static bfd_boolean elf32_arm_nabi_grok_psinfo | |
42 | PARAMS ((bfd *abfd, Elf_Internal_Note *note)); | |
43 | ||
44 | /* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g. | |
45 | R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO | |
46 | in that slot. */ | |
47 | ||
48 | static reloc_howto_type elf32_arm_howto_table[] = | |
49 | { | |
50 | /* No relocation */ | |
51 | HOWTO (R_ARM_NONE, /* type */ | |
52 | 0, /* rightshift */ | |
53 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
54 | 0, /* bitsize */ | |
55 | FALSE, /* pc_relative */ | |
56 | 0, /* bitpos */ | |
57 | complain_overflow_dont,/* complain_on_overflow */ | |
58 | bfd_elf_generic_reloc, /* special_function */ | |
59 | "R_ARM_NONE", /* name */ | |
60 | FALSE, /* partial_inplace */ | |
61 | 0, /* src_mask */ | |
62 | 0, /* dst_mask */ | |
63 | FALSE), /* pcrel_offset */ | |
64 | ||
65 | HOWTO (R_ARM_PC24, /* type */ | |
66 | 2, /* rightshift */ | |
67 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
68 | 24, /* bitsize */ | |
69 | TRUE, /* pc_relative */ | |
70 | 0, /* bitpos */ | |
71 | complain_overflow_signed,/* complain_on_overflow */ | |
72 | bfd_elf_generic_reloc, /* special_function */ | |
73 | "R_ARM_PC24", /* name */ | |
74 | FALSE, /* partial_inplace */ | |
75 | 0x00ffffff, /* src_mask */ | |
76 | 0x00ffffff, /* dst_mask */ | |
77 | TRUE), /* pcrel_offset */ | |
78 | ||
79 | /* 32 bit absolute */ | |
80 | HOWTO (R_ARM_ABS32, /* type */ | |
81 | 0, /* rightshift */ | |
82 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
83 | 32, /* bitsize */ | |
84 | FALSE, /* pc_relative */ | |
85 | 0, /* bitpos */ | |
86 | complain_overflow_bitfield,/* complain_on_overflow */ | |
87 | bfd_elf_generic_reloc, /* special_function */ | |
88 | "R_ARM_ABS32", /* name */ | |
89 | FALSE, /* partial_inplace */ | |
90 | 0xffffffff, /* src_mask */ | |
91 | 0xffffffff, /* dst_mask */ | |
92 | FALSE), /* pcrel_offset */ | |
93 | ||
94 | /* standard 32bit pc-relative reloc */ | |
95 | HOWTO (R_ARM_REL32, /* type */ | |
96 | 0, /* rightshift */ | |
97 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
98 | 32, /* bitsize */ | |
99 | TRUE, /* pc_relative */ | |
100 | 0, /* bitpos */ | |
101 | complain_overflow_bitfield,/* complain_on_overflow */ | |
102 | bfd_elf_generic_reloc, /* special_function */ | |
103 | "R_ARM_REL32", /* name */ | |
104 | FALSE, /* partial_inplace */ | |
105 | 0xffffffff, /* src_mask */ | |
106 | 0xffffffff, /* dst_mask */ | |
107 | TRUE), /* pcrel_offset */ | |
108 | ||
109 | /* 8 bit absolute */ | |
110 | HOWTO (R_ARM_PC13, /* type */ | |
111 | 0, /* rightshift */ | |
112 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
113 | 8, /* bitsize */ | |
114 | FALSE, /* pc_relative */ | |
115 | 0, /* bitpos */ | |
116 | complain_overflow_bitfield,/* complain_on_overflow */ | |
117 | bfd_elf_generic_reloc, /* special_function */ | |
118 | "R_ARM_PC13", /* name */ | |
119 | FALSE, /* partial_inplace */ | |
120 | 0x000000ff, /* src_mask */ | |
121 | 0x000000ff, /* dst_mask */ | |
122 | FALSE), /* pcrel_offset */ | |
123 | ||
124 | /* 16 bit absolute */ | |
125 | HOWTO (R_ARM_ABS16, /* type */ | |
126 | 0, /* rightshift */ | |
127 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
128 | 16, /* bitsize */ | |
129 | FALSE, /* pc_relative */ | |
130 | 0, /* bitpos */ | |
131 | complain_overflow_bitfield,/* complain_on_overflow */ | |
132 | bfd_elf_generic_reloc, /* special_function */ | |
133 | "R_ARM_ABS16", /* name */ | |
134 | FALSE, /* partial_inplace */ | |
135 | 0x0000ffff, /* src_mask */ | |
136 | 0x0000ffff, /* dst_mask */ | |
137 | FALSE), /* pcrel_offset */ | |
138 | ||
139 | /* 12 bit absolute */ | |
140 | HOWTO (R_ARM_ABS12, /* type */ | |
141 | 0, /* rightshift */ | |
142 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
143 | 12, /* bitsize */ | |
144 | FALSE, /* pc_relative */ | |
145 | 0, /* bitpos */ | |
146 | complain_overflow_bitfield,/* complain_on_overflow */ | |
147 | bfd_elf_generic_reloc, /* special_function */ | |
148 | "R_ARM_ABS12", /* name */ | |
149 | FALSE, /* partial_inplace */ | |
150 | 0x000008ff, /* src_mask */ | |
151 | 0x000008ff, /* dst_mask */ | |
152 | FALSE), /* pcrel_offset */ | |
153 | ||
154 | HOWTO (R_ARM_THM_ABS5, /* type */ | |
155 | 6, /* rightshift */ | |
156 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
157 | 5, /* bitsize */ | |
158 | FALSE, /* pc_relative */ | |
159 | 0, /* bitpos */ | |
160 | complain_overflow_bitfield,/* complain_on_overflow */ | |
161 | bfd_elf_generic_reloc, /* special_function */ | |
162 | "R_ARM_THM_ABS5", /* name */ | |
163 | FALSE, /* partial_inplace */ | |
164 | 0x000007e0, /* src_mask */ | |
165 | 0x000007e0, /* dst_mask */ | |
166 | FALSE), /* pcrel_offset */ | |
167 | ||
168 | /* 8 bit absolute */ | |
169 | HOWTO (R_ARM_ABS8, /* type */ | |
170 | 0, /* rightshift */ | |
171 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
172 | 8, /* bitsize */ | |
173 | FALSE, /* pc_relative */ | |
174 | 0, /* bitpos */ | |
175 | complain_overflow_bitfield,/* complain_on_overflow */ | |
176 | bfd_elf_generic_reloc, /* special_function */ | |
177 | "R_ARM_ABS8", /* name */ | |
178 | FALSE, /* partial_inplace */ | |
179 | 0x000000ff, /* src_mask */ | |
180 | 0x000000ff, /* dst_mask */ | |
181 | FALSE), /* pcrel_offset */ | |
182 | ||
183 | HOWTO (R_ARM_SBREL32, /* type */ | |
184 | 0, /* rightshift */ | |
185 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
186 | 32, /* bitsize */ | |
187 | FALSE, /* pc_relative */ | |
188 | 0, /* bitpos */ | |
189 | complain_overflow_dont,/* complain_on_overflow */ | |
190 | bfd_elf_generic_reloc, /* special_function */ | |
191 | "R_ARM_SBREL32", /* name */ | |
192 | FALSE, /* partial_inplace */ | |
193 | 0xffffffff, /* src_mask */ | |
194 | 0xffffffff, /* dst_mask */ | |
195 | FALSE), /* pcrel_offset */ | |
196 | ||
197 | HOWTO (R_ARM_THM_PC22, /* type */ | |
198 | 1, /* rightshift */ | |
199 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
200 | 23, /* bitsize */ | |
201 | TRUE, /* pc_relative */ | |
202 | 0, /* bitpos */ | |
203 | complain_overflow_signed,/* complain_on_overflow */ | |
204 | bfd_elf_generic_reloc, /* special_function */ | |
205 | "R_ARM_THM_PC22", /* name */ | |
206 | FALSE, /* partial_inplace */ | |
207 | 0x07ff07ff, /* src_mask */ | |
208 | 0x07ff07ff, /* dst_mask */ | |
209 | TRUE), /* pcrel_offset */ | |
210 | ||
211 | HOWTO (R_ARM_THM_PC8, /* type */ | |
212 | 1, /* rightshift */ | |
213 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
214 | 8, /* bitsize */ | |
215 | TRUE, /* pc_relative */ | |
216 | 0, /* bitpos */ | |
217 | complain_overflow_signed,/* complain_on_overflow */ | |
218 | bfd_elf_generic_reloc, /* special_function */ | |
219 | "R_ARM_THM_PC8", /* name */ | |
220 | FALSE, /* partial_inplace */ | |
221 | 0x000000ff, /* src_mask */ | |
222 | 0x000000ff, /* dst_mask */ | |
223 | TRUE), /* pcrel_offset */ | |
224 | ||
225 | HOWTO (R_ARM_AMP_VCALL9, /* type */ | |
226 | 1, /* rightshift */ | |
227 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
228 | 8, /* bitsize */ | |
229 | TRUE, /* pc_relative */ | |
230 | 0, /* bitpos */ | |
231 | complain_overflow_signed,/* complain_on_overflow */ | |
232 | bfd_elf_generic_reloc, /* special_function */ | |
233 | "R_ARM_AMP_VCALL9", /* name */ | |
234 | FALSE, /* partial_inplace */ | |
235 | 0x000000ff, /* src_mask */ | |
236 | 0x000000ff, /* dst_mask */ | |
237 | TRUE), /* pcrel_offset */ | |
238 | ||
239 | HOWTO (R_ARM_SWI24, /* type */ | |
240 | 0, /* rightshift */ | |
241 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
242 | 0, /* bitsize */ | |
243 | FALSE, /* pc_relative */ | |
244 | 0, /* bitpos */ | |
245 | complain_overflow_signed,/* complain_on_overflow */ | |
246 | bfd_elf_generic_reloc, /* special_function */ | |
247 | "R_ARM_SWI24", /* name */ | |
248 | FALSE, /* partial_inplace */ | |
249 | 0x00000000, /* src_mask */ | |
250 | 0x00000000, /* dst_mask */ | |
251 | FALSE), /* pcrel_offset */ | |
252 | ||
253 | HOWTO (R_ARM_THM_SWI8, /* type */ | |
254 | 0, /* rightshift */ | |
255 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
256 | 0, /* bitsize */ | |
257 | FALSE, /* pc_relative */ | |
258 | 0, /* bitpos */ | |
259 | complain_overflow_signed,/* complain_on_overflow */ | |
260 | bfd_elf_generic_reloc, /* special_function */ | |
261 | "R_ARM_SWI8", /* name */ | |
262 | FALSE, /* partial_inplace */ | |
263 | 0x00000000, /* src_mask */ | |
264 | 0x00000000, /* dst_mask */ | |
265 | FALSE), /* pcrel_offset */ | |
266 | ||
267 | /* BLX instruction for the ARM. */ | |
268 | HOWTO (R_ARM_XPC25, /* type */ | |
269 | 2, /* rightshift */ | |
270 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
271 | 25, /* bitsize */ | |
272 | TRUE, /* pc_relative */ | |
273 | 0, /* bitpos */ | |
274 | complain_overflow_signed,/* complain_on_overflow */ | |
275 | bfd_elf_generic_reloc, /* special_function */ | |
276 | "R_ARM_XPC25", /* name */ | |
277 | FALSE, /* partial_inplace */ | |
278 | 0x00ffffff, /* src_mask */ | |
279 | 0x00ffffff, /* dst_mask */ | |
280 | TRUE), /* pcrel_offset */ | |
281 | ||
282 | /* BLX instruction for the Thumb. */ | |
283 | HOWTO (R_ARM_THM_XPC22, /* type */ | |
284 | 2, /* rightshift */ | |
285 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
286 | 22, /* bitsize */ | |
287 | TRUE, /* pc_relative */ | |
288 | 0, /* bitpos */ | |
289 | complain_overflow_signed,/* complain_on_overflow */ | |
290 | bfd_elf_generic_reloc, /* special_function */ | |
291 | "R_ARM_THM_XPC22", /* name */ | |
292 | FALSE, /* partial_inplace */ | |
293 | 0x07ff07ff, /* src_mask */ | |
294 | 0x07ff07ff, /* dst_mask */ | |
295 | TRUE), /* pcrel_offset */ | |
296 | ||
ba93b8ac | 297 | /* Dynamic TLS relocations. */ |
7f266840 | 298 | |
ba93b8ac DJ |
299 | HOWTO (R_ARM_TLS_DTPMOD32, /* type */ |
300 | 0, /* rightshift */ | |
301 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
302 | 32, /* bitsize */ | |
303 | FALSE, /* pc_relative */ | |
304 | 0, /* bitpos */ | |
305 | complain_overflow_bitfield,/* complain_on_overflow */ | |
306 | bfd_elf_generic_reloc, /* special_function */ | |
307 | "R_ARM_TLS_DTPMOD32", /* name */ | |
308 | TRUE, /* partial_inplace */ | |
309 | 0xffffffff, /* src_mask */ | |
310 | 0xffffffff, /* dst_mask */ | |
311 | FALSE), /* pcrel_offset */ | |
7f266840 | 312 | |
ba93b8ac DJ |
313 | HOWTO (R_ARM_TLS_DTPOFF32, /* type */ |
314 | 0, /* rightshift */ | |
315 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
316 | 32, /* bitsize */ | |
317 | FALSE, /* pc_relative */ | |
318 | 0, /* bitpos */ | |
319 | complain_overflow_bitfield,/* complain_on_overflow */ | |
320 | bfd_elf_generic_reloc, /* special_function */ | |
321 | "R_ARM_TLS_DTPOFF32", /* name */ | |
322 | TRUE, /* partial_inplace */ | |
323 | 0xffffffff, /* src_mask */ | |
324 | 0xffffffff, /* dst_mask */ | |
325 | FALSE), /* pcrel_offset */ | |
7f266840 | 326 | |
ba93b8ac DJ |
327 | HOWTO (R_ARM_TLS_TPOFF32, /* type */ |
328 | 0, /* rightshift */ | |
329 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
330 | 32, /* bitsize */ | |
331 | FALSE, /* pc_relative */ | |
332 | 0, /* bitpos */ | |
333 | complain_overflow_bitfield,/* complain_on_overflow */ | |
334 | bfd_elf_generic_reloc, /* special_function */ | |
335 | "R_ARM_TLS_TPOFF32", /* name */ | |
336 | TRUE, /* partial_inplace */ | |
337 | 0xffffffff, /* src_mask */ | |
338 | 0xffffffff, /* dst_mask */ | |
339 | FALSE), /* pcrel_offset */ | |
7f266840 DJ |
340 | |
341 | /* Relocs used in ARM Linux */ | |
342 | ||
343 | HOWTO (R_ARM_COPY, /* type */ | |
344 | 0, /* rightshift */ | |
345 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
346 | 32, /* bitsize */ | |
347 | FALSE, /* pc_relative */ | |
348 | 0, /* bitpos */ | |
349 | complain_overflow_bitfield,/* complain_on_overflow */ | |
350 | bfd_elf_generic_reloc, /* special_function */ | |
351 | "R_ARM_COPY", /* name */ | |
352 | TRUE, /* partial_inplace */ | |
353 | 0xffffffff, /* src_mask */ | |
354 | 0xffffffff, /* dst_mask */ | |
355 | FALSE), /* pcrel_offset */ | |
356 | ||
357 | HOWTO (R_ARM_GLOB_DAT, /* type */ | |
358 | 0, /* rightshift */ | |
359 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
360 | 32, /* bitsize */ | |
361 | FALSE, /* pc_relative */ | |
362 | 0, /* bitpos */ | |
363 | complain_overflow_bitfield,/* complain_on_overflow */ | |
364 | bfd_elf_generic_reloc, /* special_function */ | |
365 | "R_ARM_GLOB_DAT", /* name */ | |
366 | TRUE, /* partial_inplace */ | |
367 | 0xffffffff, /* src_mask */ | |
368 | 0xffffffff, /* dst_mask */ | |
369 | FALSE), /* pcrel_offset */ | |
370 | ||
371 | HOWTO (R_ARM_JUMP_SLOT, /* type */ | |
372 | 0, /* rightshift */ | |
373 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
374 | 32, /* bitsize */ | |
375 | FALSE, /* pc_relative */ | |
376 | 0, /* bitpos */ | |
377 | complain_overflow_bitfield,/* complain_on_overflow */ | |
378 | bfd_elf_generic_reloc, /* special_function */ | |
379 | "R_ARM_JUMP_SLOT", /* name */ | |
380 | TRUE, /* partial_inplace */ | |
381 | 0xffffffff, /* src_mask */ | |
382 | 0xffffffff, /* dst_mask */ | |
383 | FALSE), /* pcrel_offset */ | |
384 | ||
385 | HOWTO (R_ARM_RELATIVE, /* type */ | |
386 | 0, /* rightshift */ | |
387 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
388 | 32, /* bitsize */ | |
389 | FALSE, /* pc_relative */ | |
390 | 0, /* bitpos */ | |
391 | complain_overflow_bitfield,/* complain_on_overflow */ | |
392 | bfd_elf_generic_reloc, /* special_function */ | |
393 | "R_ARM_RELATIVE", /* name */ | |
394 | TRUE, /* partial_inplace */ | |
395 | 0xffffffff, /* src_mask */ | |
396 | 0xffffffff, /* dst_mask */ | |
397 | FALSE), /* pcrel_offset */ | |
398 | ||
399 | HOWTO (R_ARM_GOTOFF, /* type */ | |
400 | 0, /* rightshift */ | |
401 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
402 | 32, /* bitsize */ | |
403 | FALSE, /* pc_relative */ | |
404 | 0, /* bitpos */ | |
405 | complain_overflow_bitfield,/* complain_on_overflow */ | |
406 | bfd_elf_generic_reloc, /* special_function */ | |
407 | "R_ARM_GOTOFF", /* name */ | |
408 | TRUE, /* partial_inplace */ | |
409 | 0xffffffff, /* src_mask */ | |
410 | 0xffffffff, /* dst_mask */ | |
411 | FALSE), /* pcrel_offset */ | |
412 | ||
413 | HOWTO (R_ARM_GOTPC, /* type */ | |
414 | 0, /* rightshift */ | |
415 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
416 | 32, /* bitsize */ | |
417 | TRUE, /* pc_relative */ | |
418 | 0, /* bitpos */ | |
419 | complain_overflow_bitfield,/* complain_on_overflow */ | |
420 | bfd_elf_generic_reloc, /* special_function */ | |
421 | "R_ARM_GOTPC", /* name */ | |
422 | TRUE, /* partial_inplace */ | |
423 | 0xffffffff, /* src_mask */ | |
424 | 0xffffffff, /* dst_mask */ | |
425 | TRUE), /* pcrel_offset */ | |
426 | ||
427 | HOWTO (R_ARM_GOT32, /* type */ | |
428 | 0, /* rightshift */ | |
429 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
430 | 32, /* bitsize */ | |
431 | FALSE, /* pc_relative */ | |
432 | 0, /* bitpos */ | |
433 | complain_overflow_bitfield,/* complain_on_overflow */ | |
434 | bfd_elf_generic_reloc, /* special_function */ | |
435 | "R_ARM_GOT32", /* name */ | |
436 | TRUE, /* partial_inplace */ | |
437 | 0xffffffff, /* src_mask */ | |
438 | 0xffffffff, /* dst_mask */ | |
439 | FALSE), /* pcrel_offset */ | |
440 | ||
441 | HOWTO (R_ARM_PLT32, /* type */ | |
442 | 2, /* rightshift */ | |
443 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
444 | 26, /* bitsize */ | |
445 | TRUE, /* pc_relative */ | |
446 | 0, /* bitpos */ | |
447 | complain_overflow_bitfield,/* complain_on_overflow */ | |
448 | bfd_elf_generic_reloc, /* special_function */ | |
449 | "R_ARM_PLT32", /* name */ | |
450 | TRUE, /* partial_inplace */ | |
451 | 0x00ffffff, /* src_mask */ | |
452 | 0x00ffffff, /* dst_mask */ | |
453 | TRUE), /* pcrel_offset */ | |
454 | ||
455 | HOWTO (R_ARM_CALL, /* type */ | |
456 | 2, /* rightshift */ | |
457 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
458 | 24, /* bitsize */ | |
459 | TRUE, /* pc_relative */ | |
460 | 0, /* bitpos */ | |
461 | complain_overflow_signed,/* complain_on_overflow */ | |
462 | bfd_elf_generic_reloc, /* special_function */ | |
463 | "R_ARM_CALL", /* name */ | |
464 | FALSE, /* partial_inplace */ | |
465 | 0x00ffffff, /* src_mask */ | |
466 | 0x00ffffff, /* dst_mask */ | |
467 | TRUE), /* pcrel_offset */ | |
468 | ||
469 | HOWTO (R_ARM_JUMP24, /* type */ | |
470 | 2, /* rightshift */ | |
471 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
472 | 24, /* bitsize */ | |
473 | TRUE, /* pc_relative */ | |
474 | 0, /* bitpos */ | |
475 | complain_overflow_signed,/* complain_on_overflow */ | |
476 | bfd_elf_generic_reloc, /* special_function */ | |
477 | "R_ARM_JUMP24", /* name */ | |
478 | FALSE, /* partial_inplace */ | |
479 | 0x00ffffff, /* src_mask */ | |
480 | 0x00ffffff, /* dst_mask */ | |
481 | TRUE), /* pcrel_offset */ | |
482 | ||
483 | HOWTO (R_ARM_NONE, /* type */ | |
484 | 0, /* rightshift */ | |
485 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
486 | 0, /* bitsize */ | |
487 | FALSE, /* pc_relative */ | |
488 | 0, /* bitpos */ | |
489 | complain_overflow_dont,/* complain_on_overflow */ | |
490 | bfd_elf_generic_reloc, /* special_function */ | |
491 | "R_ARM_unknown_30", /* name */ | |
492 | FALSE, /* partial_inplace */ | |
493 | 0, /* src_mask */ | |
494 | 0, /* dst_mask */ | |
495 | FALSE), /* pcrel_offset */ | |
496 | ||
497 | HOWTO (R_ARM_NONE, /* type */ | |
498 | 0, /* rightshift */ | |
499 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
500 | 0, /* bitsize */ | |
501 | FALSE, /* pc_relative */ | |
502 | 0, /* bitpos */ | |
503 | complain_overflow_dont,/* complain_on_overflow */ | |
504 | bfd_elf_generic_reloc, /* special_function */ | |
505 | "R_ARM_unknown_31", /* name */ | |
506 | FALSE, /* partial_inplace */ | |
507 | 0, /* src_mask */ | |
508 | 0, /* dst_mask */ | |
509 | FALSE), /* pcrel_offset */ | |
510 | ||
511 | HOWTO (R_ARM_ALU_PCREL7_0, /* type */ | |
512 | 0, /* rightshift */ | |
513 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
514 | 12, /* bitsize */ | |
515 | TRUE, /* pc_relative */ | |
516 | 0, /* bitpos */ | |
517 | complain_overflow_dont,/* complain_on_overflow */ | |
518 | bfd_elf_generic_reloc, /* special_function */ | |
519 | "R_ARM_ALU_PCREL_7_0", /* name */ | |
520 | FALSE, /* partial_inplace */ | |
521 | 0x00000fff, /* src_mask */ | |
522 | 0x00000fff, /* dst_mask */ | |
523 | TRUE), /* pcrel_offset */ | |
524 | ||
525 | HOWTO (R_ARM_ALU_PCREL15_8, /* type */ | |
526 | 0, /* rightshift */ | |
527 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
528 | 12, /* bitsize */ | |
529 | TRUE, /* pc_relative */ | |
530 | 8, /* bitpos */ | |
531 | complain_overflow_dont,/* complain_on_overflow */ | |
532 | bfd_elf_generic_reloc, /* special_function */ | |
533 | "R_ARM_ALU_PCREL_15_8",/* name */ | |
534 | FALSE, /* partial_inplace */ | |
535 | 0x00000fff, /* src_mask */ | |
536 | 0x00000fff, /* dst_mask */ | |
537 | TRUE), /* pcrel_offset */ | |
538 | ||
539 | HOWTO (R_ARM_ALU_PCREL23_15, /* type */ | |
540 | 0, /* rightshift */ | |
541 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
542 | 12, /* bitsize */ | |
543 | TRUE, /* pc_relative */ | |
544 | 16, /* bitpos */ | |
545 | complain_overflow_dont,/* complain_on_overflow */ | |
546 | bfd_elf_generic_reloc, /* special_function */ | |
547 | "R_ARM_ALU_PCREL_23_15",/* name */ | |
548 | FALSE, /* partial_inplace */ | |
549 | 0x00000fff, /* src_mask */ | |
550 | 0x00000fff, /* dst_mask */ | |
551 | TRUE), /* pcrel_offset */ | |
552 | ||
553 | HOWTO (R_ARM_LDR_SBREL_11_0, /* type */ | |
554 | 0, /* rightshift */ | |
555 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
556 | 12, /* bitsize */ | |
557 | FALSE, /* pc_relative */ | |
558 | 0, /* bitpos */ | |
559 | complain_overflow_dont,/* complain_on_overflow */ | |
560 | bfd_elf_generic_reloc, /* special_function */ | |
561 | "R_ARM_LDR_SBREL_11_0",/* name */ | |
562 | FALSE, /* partial_inplace */ | |
563 | 0x00000fff, /* src_mask */ | |
564 | 0x00000fff, /* dst_mask */ | |
565 | FALSE), /* pcrel_offset */ | |
566 | ||
567 | HOWTO (R_ARM_ALU_SBREL_19_12, /* type */ | |
568 | 0, /* rightshift */ | |
569 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
570 | 8, /* bitsize */ | |
571 | FALSE, /* pc_relative */ | |
572 | 12, /* bitpos */ | |
573 | complain_overflow_dont,/* complain_on_overflow */ | |
574 | bfd_elf_generic_reloc, /* special_function */ | |
575 | "R_ARM_ALU_SBREL_19_12",/* name */ | |
576 | FALSE, /* partial_inplace */ | |
577 | 0x000ff000, /* src_mask */ | |
578 | 0x000ff000, /* dst_mask */ | |
579 | FALSE), /* pcrel_offset */ | |
580 | ||
581 | HOWTO (R_ARM_ALU_SBREL_27_20, /* type */ | |
582 | 0, /* rightshift */ | |
583 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
584 | 8, /* bitsize */ | |
585 | FALSE, /* pc_relative */ | |
586 | 20, /* bitpos */ | |
587 | complain_overflow_dont,/* complain_on_overflow */ | |
588 | bfd_elf_generic_reloc, /* special_function */ | |
589 | "R_ARM_ALU_SBREL_27_20",/* name */ | |
590 | FALSE, /* partial_inplace */ | |
591 | 0x0ff00000, /* src_mask */ | |
592 | 0x0ff00000, /* dst_mask */ | |
593 | FALSE), /* pcrel_offset */ | |
594 | ||
595 | HOWTO (R_ARM_TARGET1, /* type */ | |
596 | 0, /* rightshift */ | |
597 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
598 | 32, /* bitsize */ | |
599 | FALSE, /* pc_relative */ | |
600 | 0, /* bitpos */ | |
601 | complain_overflow_dont,/* complain_on_overflow */ | |
602 | bfd_elf_generic_reloc, /* special_function */ | |
603 | "R_ARM_TARGET1", /* name */ | |
604 | FALSE, /* partial_inplace */ | |
605 | 0xffffffff, /* src_mask */ | |
606 | 0xffffffff, /* dst_mask */ | |
607 | FALSE), /* pcrel_offset */ | |
608 | ||
609 | HOWTO (R_ARM_ROSEGREL32, /* type */ | |
610 | 0, /* rightshift */ | |
611 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
612 | 32, /* bitsize */ | |
613 | FALSE, /* pc_relative */ | |
614 | 0, /* bitpos */ | |
615 | complain_overflow_dont,/* complain_on_overflow */ | |
616 | bfd_elf_generic_reloc, /* special_function */ | |
617 | "R_ARM_ROSEGREL32", /* name */ | |
618 | FALSE, /* partial_inplace */ | |
619 | 0xffffffff, /* src_mask */ | |
620 | 0xffffffff, /* dst_mask */ | |
621 | FALSE), /* pcrel_offset */ | |
622 | ||
623 | HOWTO (R_ARM_V4BX, /* type */ | |
624 | 0, /* rightshift */ | |
625 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
626 | 32, /* bitsize */ | |
627 | FALSE, /* pc_relative */ | |
628 | 0, /* bitpos */ | |
629 | complain_overflow_dont,/* complain_on_overflow */ | |
630 | bfd_elf_generic_reloc, /* special_function */ | |
631 | "R_ARM_V4BX", /* name */ | |
632 | FALSE, /* partial_inplace */ | |
633 | 0xffffffff, /* src_mask */ | |
634 | 0xffffffff, /* dst_mask */ | |
635 | FALSE), /* pcrel_offset */ | |
636 | ||
637 | HOWTO (R_ARM_TARGET2, /* type */ | |
638 | 0, /* rightshift */ | |
639 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
640 | 32, /* bitsize */ | |
641 | FALSE, /* pc_relative */ | |
642 | 0, /* bitpos */ | |
643 | complain_overflow_signed,/* complain_on_overflow */ | |
644 | bfd_elf_generic_reloc, /* special_function */ | |
645 | "R_ARM_TARGET2", /* name */ | |
646 | FALSE, /* partial_inplace */ | |
647 | 0xffffffff, /* src_mask */ | |
648 | 0xffffffff, /* dst_mask */ | |
649 | TRUE), /* pcrel_offset */ | |
650 | ||
651 | HOWTO (R_ARM_PREL31, /* type */ | |
652 | 0, /* rightshift */ | |
653 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
654 | 31, /* bitsize */ | |
655 | TRUE, /* pc_relative */ | |
656 | 0, /* bitpos */ | |
657 | complain_overflow_signed,/* complain_on_overflow */ | |
658 | bfd_elf_generic_reloc, /* special_function */ | |
659 | "R_ARM_PREL31", /* name */ | |
660 | FALSE, /* partial_inplace */ | |
661 | 0x7fffffff, /* src_mask */ | |
662 | 0x7fffffff, /* dst_mask */ | |
663 | TRUE), /* pcrel_offset */ | |
664 | }; | |
665 | ||
ba93b8ac DJ |
666 | static reloc_howto_type elf32_arm_tls_gd32_howto = |
667 | HOWTO (R_ARM_TLS_GD32, /* type */ | |
668 | 0, /* rightshift */ | |
669 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
670 | 32, /* bitsize */ | |
671 | FALSE, /* pc_relative */ | |
672 | 0, /* bitpos */ | |
673 | complain_overflow_bitfield,/* complain_on_overflow */ | |
674 | NULL, /* special_function */ | |
675 | "R_ARM_TLS_GD32", /* name */ | |
676 | TRUE, /* partial_inplace */ | |
677 | 0xffffffff, /* src_mask */ | |
678 | 0xffffffff, /* dst_mask */ | |
679 | FALSE); /* pcrel_offset */ | |
680 | ||
681 | static reloc_howto_type elf32_arm_tls_ldo32_howto = | |
682 | HOWTO (R_ARM_TLS_LDO32, /* type */ | |
683 | 0, /* rightshift */ | |
684 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
685 | 32, /* bitsize */ | |
686 | FALSE, /* pc_relative */ | |
687 | 0, /* bitpos */ | |
688 | complain_overflow_bitfield,/* complain_on_overflow */ | |
689 | bfd_elf_generic_reloc, /* special_function */ | |
690 | "R_ARM_TLS_LDO32", /* name */ | |
691 | TRUE, /* partial_inplace */ | |
692 | 0xffffffff, /* src_mask */ | |
693 | 0xffffffff, /* dst_mask */ | |
694 | FALSE); /* pcrel_offset */ | |
695 | ||
696 | static reloc_howto_type elf32_arm_tls_ldm32_howto = | |
697 | HOWTO (R_ARM_TLS_LDM32, /* type */ | |
698 | 0, /* rightshift */ | |
699 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
700 | 32, /* bitsize */ | |
701 | FALSE, /* pc_relative */ | |
702 | 0, /* bitpos */ | |
703 | complain_overflow_bitfield,/* complain_on_overflow */ | |
704 | bfd_elf_generic_reloc, /* special_function */ | |
705 | "R_ARM_TLS_LDM32", /* name */ | |
706 | TRUE, /* partial_inplace */ | |
707 | 0xffffffff, /* src_mask */ | |
708 | 0xffffffff, /* dst_mask */ | |
709 | FALSE); /* pcrel_offset */ | |
710 | ||
711 | static reloc_howto_type elf32_arm_tls_le32_howto = | |
712 | HOWTO (R_ARM_TLS_LE32, /* type */ | |
713 | 0, /* rightshift */ | |
714 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
715 | 32, /* bitsize */ | |
716 | FALSE, /* pc_relative */ | |
717 | 0, /* bitpos */ | |
718 | complain_overflow_bitfield,/* complain_on_overflow */ | |
719 | bfd_elf_generic_reloc, /* special_function */ | |
720 | "R_ARM_TLS_LE32", /* name */ | |
721 | TRUE, /* partial_inplace */ | |
722 | 0xffffffff, /* src_mask */ | |
723 | 0xffffffff, /* dst_mask */ | |
724 | FALSE); /* pcrel_offset */ | |
725 | ||
726 | static reloc_howto_type elf32_arm_tls_ie32_howto = | |
727 | HOWTO (R_ARM_TLS_IE32, /* type */ | |
728 | 0, /* rightshift */ | |
729 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
730 | 32, /* bitsize */ | |
731 | FALSE, /* pc_relative */ | |
732 | 0, /* bitpos */ | |
733 | complain_overflow_bitfield,/* complain_on_overflow */ | |
734 | NULL, /* special_function */ | |
735 | "R_ARM_TLS_IE32", /* name */ | |
736 | TRUE, /* partial_inplace */ | |
737 | 0xffffffff, /* src_mask */ | |
738 | 0xffffffff, /* dst_mask */ | |
739 | FALSE); /* pcrel_offset */ | |
740 | ||
7f266840 DJ |
741 | /* GNU extension to record C++ vtable hierarchy */ |
742 | static reloc_howto_type elf32_arm_vtinherit_howto = | |
743 | HOWTO (R_ARM_GNU_VTINHERIT, /* type */ | |
744 | 0, /* rightshift */ | |
745 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
746 | 0, /* bitsize */ | |
747 | FALSE, /* pc_relative */ | |
748 | 0, /* bitpos */ | |
749 | complain_overflow_dont, /* complain_on_overflow */ | |
750 | NULL, /* special_function */ | |
751 | "R_ARM_GNU_VTINHERIT", /* name */ | |
752 | FALSE, /* partial_inplace */ | |
753 | 0, /* src_mask */ | |
754 | 0, /* dst_mask */ | |
755 | FALSE); /* pcrel_offset */ | |
756 | ||
757 | /* GNU extension to record C++ vtable member usage */ | |
758 | static reloc_howto_type elf32_arm_vtentry_howto = | |
759 | HOWTO (R_ARM_GNU_VTENTRY, /* type */ | |
760 | 0, /* rightshift */ | |
761 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
762 | 0, /* bitsize */ | |
763 | FALSE, /* pc_relative */ | |
764 | 0, /* bitpos */ | |
765 | complain_overflow_dont, /* complain_on_overflow */ | |
766 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
767 | "R_ARM_GNU_VTENTRY", /* name */ | |
768 | FALSE, /* partial_inplace */ | |
769 | 0, /* src_mask */ | |
770 | 0, /* dst_mask */ | |
771 | FALSE); /* pcrel_offset */ | |
772 | ||
773 | /* 12 bit pc relative */ | |
774 | static reloc_howto_type elf32_arm_thm_pc11_howto = | |
775 | HOWTO (R_ARM_THM_PC11, /* type */ | |
776 | 1, /* rightshift */ | |
777 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
778 | 11, /* bitsize */ | |
779 | TRUE, /* pc_relative */ | |
780 | 0, /* bitpos */ | |
781 | complain_overflow_signed, /* complain_on_overflow */ | |
782 | bfd_elf_generic_reloc, /* special_function */ | |
783 | "R_ARM_THM_PC11", /* name */ | |
784 | FALSE, /* partial_inplace */ | |
785 | 0x000007ff, /* src_mask */ | |
786 | 0x000007ff, /* dst_mask */ | |
787 | TRUE); /* pcrel_offset */ | |
788 | ||
789 | /* 12 bit pc relative */ | |
790 | static reloc_howto_type elf32_arm_thm_pc9_howto = | |
791 | HOWTO (R_ARM_THM_PC9, /* type */ | |
792 | 1, /* rightshift */ | |
793 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
794 | 8, /* bitsize */ | |
795 | TRUE, /* pc_relative */ | |
796 | 0, /* bitpos */ | |
797 | complain_overflow_signed, /* complain_on_overflow */ | |
798 | bfd_elf_generic_reloc, /* special_function */ | |
799 | "R_ARM_THM_PC9", /* name */ | |
800 | FALSE, /* partial_inplace */ | |
801 | 0x000000ff, /* src_mask */ | |
802 | 0x000000ff, /* dst_mask */ | |
803 | TRUE); /* pcrel_offset */ | |
804 | ||
805 | /* Place relative GOT-indirect. */ | |
806 | static reloc_howto_type elf32_arm_got_prel = | |
807 | HOWTO (R_ARM_GOT_PREL, /* type */ | |
808 | 0, /* rightshift */ | |
809 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
810 | 32, /* bitsize */ | |
811 | TRUE, /* pc_relative */ | |
812 | 0, /* bitpos */ | |
813 | complain_overflow_dont, /* complain_on_overflow */ | |
814 | bfd_elf_generic_reloc, /* special_function */ | |
815 | "R_ARM_GOT_PREL", /* name */ | |
816 | FALSE, /* partial_inplace */ | |
817 | 0xffffffff, /* src_mask */ | |
818 | 0xffffffff, /* dst_mask */ | |
819 | TRUE); /* pcrel_offset */ | |
820 | ||
821 | /* Currently unused relocations. */ | |
822 | static reloc_howto_type elf32_arm_r_howto[4] = | |
823 | { | |
824 | HOWTO (R_ARM_RREL32, /* type */ | |
825 | 0, /* rightshift */ | |
826 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
827 | 0, /* bitsize */ | |
828 | FALSE, /* pc_relative */ | |
829 | 0, /* bitpos */ | |
830 | complain_overflow_dont,/* complain_on_overflow */ | |
831 | bfd_elf_generic_reloc, /* special_function */ | |
832 | "R_ARM_RREL32", /* name */ | |
833 | FALSE, /* partial_inplace */ | |
834 | 0, /* src_mask */ | |
835 | 0, /* dst_mask */ | |
836 | FALSE), /* pcrel_offset */ | |
837 | ||
838 | HOWTO (R_ARM_RABS32, /* type */ | |
839 | 0, /* rightshift */ | |
840 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
841 | 0, /* bitsize */ | |
842 | FALSE, /* pc_relative */ | |
843 | 0, /* bitpos */ | |
844 | complain_overflow_dont,/* complain_on_overflow */ | |
845 | bfd_elf_generic_reloc, /* special_function */ | |
846 | "R_ARM_RABS32", /* name */ | |
847 | FALSE, /* partial_inplace */ | |
848 | 0, /* src_mask */ | |
849 | 0, /* dst_mask */ | |
850 | FALSE), /* pcrel_offset */ | |
851 | ||
852 | HOWTO (R_ARM_RPC24, /* type */ | |
853 | 0, /* rightshift */ | |
854 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
855 | 0, /* bitsize */ | |
856 | FALSE, /* pc_relative */ | |
857 | 0, /* bitpos */ | |
858 | complain_overflow_dont,/* complain_on_overflow */ | |
859 | bfd_elf_generic_reloc, /* special_function */ | |
860 | "R_ARM_RPC24", /* name */ | |
861 | FALSE, /* partial_inplace */ | |
862 | 0, /* src_mask */ | |
863 | 0, /* dst_mask */ | |
864 | FALSE), /* pcrel_offset */ | |
865 | ||
866 | HOWTO (R_ARM_RBASE, /* type */ | |
867 | 0, /* rightshift */ | |
868 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
869 | 0, /* bitsize */ | |
870 | FALSE, /* pc_relative */ | |
871 | 0, /* bitpos */ | |
872 | complain_overflow_dont,/* complain_on_overflow */ | |
873 | bfd_elf_generic_reloc, /* special_function */ | |
874 | "R_ARM_RBASE", /* name */ | |
875 | FALSE, /* partial_inplace */ | |
876 | 0, /* src_mask */ | |
877 | 0, /* dst_mask */ | |
878 | FALSE) /* pcrel_offset */ | |
879 | }; | |
880 | ||
881 | static reloc_howto_type * | |
882 | elf32_arm_howto_from_type (unsigned int r_type) | |
883 | { | |
884 | if (r_type < NUM_ELEM (elf32_arm_howto_table)) | |
885 | return &elf32_arm_howto_table[r_type]; | |
886 | ||
887 | switch (r_type) | |
888 | { | |
889 | case R_ARM_GOT_PREL: | |
890 | return &elf32_arm_got_prel; | |
891 | ||
892 | case R_ARM_GNU_VTINHERIT: | |
893 | return &elf32_arm_vtinherit_howto; | |
894 | ||
895 | case R_ARM_GNU_VTENTRY: | |
896 | return &elf32_arm_vtentry_howto; | |
897 | ||
898 | case R_ARM_THM_PC11: | |
899 | return &elf32_arm_thm_pc11_howto; | |
900 | ||
901 | case R_ARM_THM_PC9: | |
902 | return &elf32_arm_thm_pc9_howto; | |
ba93b8ac DJ |
903 | |
904 | case R_ARM_TLS_GD32: | |
905 | return &elf32_arm_tls_gd32_howto; | |
906 | break; | |
907 | ||
908 | case R_ARM_TLS_LDO32: | |
909 | return &elf32_arm_tls_ldo32_howto; | |
910 | break; | |
911 | ||
912 | case R_ARM_TLS_LDM32: | |
913 | return &elf32_arm_tls_ldm32_howto; | |
914 | break; | |
915 | ||
916 | case R_ARM_TLS_IE32: | |
917 | return &elf32_arm_tls_ie32_howto; | |
918 | break; | |
919 | ||
920 | case R_ARM_TLS_LE32: | |
921 | return &elf32_arm_tls_le32_howto; | |
922 | break; | |
7f266840 DJ |
923 | |
924 | case R_ARM_RREL32: | |
925 | case R_ARM_RABS32: | |
926 | case R_ARM_RPC24: | |
927 | case R_ARM_RBASE: | |
928 | return &elf32_arm_r_howto[r_type - R_ARM_RREL32]; | |
929 | ||
930 | default: | |
931 | return NULL; | |
932 | } | |
933 | } | |
934 | ||
935 | static void | |
936 | elf32_arm_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED, arelent * bfd_reloc, | |
937 | Elf_Internal_Rela * elf_reloc) | |
938 | { | |
939 | unsigned int r_type; | |
940 | ||
941 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
942 | bfd_reloc->howto = elf32_arm_howto_from_type (r_type); | |
943 | } | |
944 | ||
945 | struct elf32_arm_reloc_map | |
946 | { | |
947 | bfd_reloc_code_real_type bfd_reloc_val; | |
948 | unsigned char elf_reloc_val; | |
949 | }; | |
950 | ||
951 | /* All entries in this list must also be present in elf32_arm_howto_table. */ | |
952 | static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] = | |
953 | { | |
954 | {BFD_RELOC_NONE, R_ARM_NONE}, | |
955 | {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24}, | |
956 | {BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25}, | |
957 | {BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22}, | |
958 | {BFD_RELOC_32, R_ARM_ABS32}, | |
959 | {BFD_RELOC_32_PCREL, R_ARM_REL32}, | |
960 | {BFD_RELOC_8, R_ARM_ABS8}, | |
961 | {BFD_RELOC_16, R_ARM_ABS16}, | |
962 | {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12}, | |
963 | {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5}, | |
964 | {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22}, | |
965 | {BFD_RELOC_ARM_COPY, R_ARM_COPY}, | |
966 | {BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT}, | |
967 | {BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT}, | |
968 | {BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE}, | |
969 | {BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF}, | |
970 | {BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC}, | |
971 | {BFD_RELOC_ARM_GOT32, R_ARM_GOT32}, | |
972 | {BFD_RELOC_ARM_PLT32, R_ARM_PLT32}, | |
973 | {BFD_RELOC_ARM_TARGET1, R_ARM_TARGET1}, | |
974 | {BFD_RELOC_ARM_ROSEGREL32, R_ARM_ROSEGREL32}, | |
975 | {BFD_RELOC_ARM_SBREL32, R_ARM_SBREL32}, | |
976 | {BFD_RELOC_ARM_PREL31, R_ARM_PREL31}, | |
ba93b8ac DJ |
977 | {BFD_RELOC_ARM_TARGET2, R_ARM_TARGET2}, |
978 | {BFD_RELOC_ARM_PLT32, R_ARM_PLT32}, | |
979 | {BFD_RELOC_ARM_TLS_GD32, R_ARM_TLS_GD32}, | |
980 | {BFD_RELOC_ARM_TLS_LDO32, R_ARM_TLS_LDO32}, | |
981 | {BFD_RELOC_ARM_TLS_LDM32, R_ARM_TLS_LDM32}, | |
982 | {BFD_RELOC_ARM_TLS_DTPMOD32, R_ARM_TLS_DTPMOD32}, | |
983 | {BFD_RELOC_ARM_TLS_DTPOFF32, R_ARM_TLS_DTPOFF32}, | |
984 | {BFD_RELOC_ARM_TLS_TPOFF32, R_ARM_TLS_TPOFF32}, | |
985 | {BFD_RELOC_ARM_TLS_IE32, R_ARM_TLS_IE32}, | |
986 | {BFD_RELOC_ARM_TLS_LE32, R_ARM_TLS_LE32}, | |
7f266840 DJ |
987 | }; |
988 | ||
989 | static reloc_howto_type * | |
990 | elf32_arm_reloc_type_lookup (abfd, code) | |
991 | bfd *abfd ATTRIBUTE_UNUSED; | |
992 | bfd_reloc_code_real_type code; | |
993 | { | |
994 | unsigned int i; | |
995 | ||
996 | switch (code) | |
997 | { | |
998 | case BFD_RELOC_VTABLE_INHERIT: | |
999 | return & elf32_arm_vtinherit_howto; | |
1000 | ||
1001 | case BFD_RELOC_VTABLE_ENTRY: | |
1002 | return & elf32_arm_vtentry_howto; | |
1003 | ||
1004 | case BFD_RELOC_THUMB_PCREL_BRANCH12: | |
1005 | return & elf32_arm_thm_pc11_howto; | |
1006 | ||
1007 | case BFD_RELOC_THUMB_PCREL_BRANCH9: | |
1008 | return & elf32_arm_thm_pc9_howto; | |
1009 | ||
ba93b8ac DJ |
1010 | case BFD_RELOC_ARM_TLS_GD32: |
1011 | return & elf32_arm_tls_gd32_howto; | |
1012 | ||
1013 | case BFD_RELOC_ARM_TLS_LDO32: | |
1014 | return & elf32_arm_tls_ldo32_howto; | |
1015 | ||
1016 | case BFD_RELOC_ARM_TLS_LDM32: | |
1017 | return & elf32_arm_tls_ldm32_howto; | |
1018 | ||
1019 | case BFD_RELOC_ARM_TLS_IE32: | |
1020 | return & elf32_arm_tls_ie32_howto; | |
1021 | ||
1022 | case BFD_RELOC_ARM_TLS_LE32: | |
1023 | return & elf32_arm_tls_le32_howto; | |
1024 | ||
7f266840 DJ |
1025 | default: |
1026 | for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++) | |
1027 | if (elf32_arm_reloc_map[i].bfd_reloc_val == code) | |
1028 | return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val]; | |
1029 | ||
1030 | return NULL; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | /* Support for core dump NOTE sections */ | |
1035 | static bfd_boolean | |
1036 | elf32_arm_nabi_grok_prstatus (abfd, note) | |
1037 | bfd *abfd; | |
1038 | Elf_Internal_Note *note; | |
1039 | { | |
1040 | int offset; | |
1041 | size_t size; | |
1042 | ||
1043 | switch (note->descsz) | |
1044 | { | |
1045 | default: | |
1046 | return FALSE; | |
1047 | ||
1048 | case 148: /* Linux/ARM 32-bit*/ | |
1049 | /* pr_cursig */ | |
1050 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
1051 | ||
1052 | /* pr_pid */ | |
1053 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
1054 | ||
1055 | /* pr_reg */ | |
1056 | offset = 72; | |
1057 | size = 72; | |
1058 | ||
1059 | break; | |
1060 | } | |
1061 | ||
1062 | /* Make a ".reg/999" section. */ | |
1063 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
1064 | size, note->descpos + offset); | |
1065 | } | |
1066 | ||
1067 | static bfd_boolean | |
1068 | elf32_arm_nabi_grok_psinfo (abfd, note) | |
1069 | bfd *abfd; | |
1070 | Elf_Internal_Note *note; | |
1071 | { | |
1072 | switch (note->descsz) | |
1073 | { | |
1074 | default: | |
1075 | return FALSE; | |
1076 | ||
1077 | case 124: /* Linux/ARM elf_prpsinfo */ | |
1078 | elf_tdata (abfd)->core_program | |
1079 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
1080 | elf_tdata (abfd)->core_command | |
1081 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
1082 | } | |
1083 | ||
1084 | /* Note that for some reason, a spurious space is tacked | |
1085 | onto the end of the args in some (at least one anyway) | |
1086 | implementations, so strip it off if it exists. */ | |
1087 | ||
1088 | { | |
1089 | char *command = elf_tdata (abfd)->core_command; | |
1090 | int n = strlen (command); | |
1091 | ||
1092 | if (0 < n && command[n - 1] == ' ') | |
1093 | command[n - 1] = '\0'; | |
1094 | } | |
1095 | ||
1096 | return TRUE; | |
1097 | } | |
1098 | ||
1099 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec | |
1100 | #define TARGET_LITTLE_NAME "elf32-littlearm" | |
1101 | #define TARGET_BIG_SYM bfd_elf32_bigarm_vec | |
1102 | #define TARGET_BIG_NAME "elf32-bigarm" | |
1103 | ||
1104 | #define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus | |
1105 | #define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo | |
1106 | ||
252b5132 RH |
1107 | typedef unsigned long int insn32; |
1108 | typedef unsigned short int insn16; | |
1109 | ||
8cb51566 | 1110 | /* In lieu of proper flags, assume all EABIv4 objects are interworkable. */ |
57e8b36a | 1111 | #define INTERWORK_FLAG(abfd) \ |
8cb51566 | 1112 | (EF_ARM_EABI_VERSION (elf_elfheader (abfd)->e_flags) == EF_ARM_EABI_VER4 \ |
85a84e7a | 1113 | || (elf_elfheader (abfd)->e_flags & EF_ARM_INTERWORK)) |
9b485d32 | 1114 | |
252b5132 RH |
1115 | /* The linker script knows the section names for placement. |
1116 | The entry_names are used to do simple name mangling on the stubs. | |
1117 | Given a function name, and its type, the stub can be found. The | |
9b485d32 | 1118 | name can be changed. The only requirement is the %s be present. */ |
252b5132 RH |
1119 | #define THUMB2ARM_GLUE_SECTION_NAME ".glue_7t" |
1120 | #define THUMB2ARM_GLUE_ENTRY_NAME "__%s_from_thumb" | |
1121 | ||
1122 | #define ARM2THUMB_GLUE_SECTION_NAME ".glue_7" | |
1123 | #define ARM2THUMB_GLUE_ENTRY_NAME "__%s_from_arm" | |
1124 | ||
1125 | /* The name of the dynamic interpreter. This is put in the .interp | |
1126 | section. */ | |
1127 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
1128 | ||
5e681ec4 PB |
1129 | #ifdef FOUR_WORD_PLT |
1130 | ||
252b5132 RH |
1131 | /* The first entry in a procedure linkage table looks like |
1132 | this. It is set up so that any shared library function that is | |
59f2c4e7 | 1133 | called before the relocation has been set up calls the dynamic |
9b485d32 | 1134 | linker first. */ |
e5a52504 | 1135 | static const bfd_vma elf32_arm_plt0_entry [] = |
5e681ec4 PB |
1136 | { |
1137 | 0xe52de004, /* str lr, [sp, #-4]! */ | |
1138 | 0xe59fe010, /* ldr lr, [pc, #16] */ | |
1139 | 0xe08fe00e, /* add lr, pc, lr */ | |
1140 | 0xe5bef008, /* ldr pc, [lr, #8]! */ | |
1141 | }; | |
1142 | ||
1143 | /* Subsequent entries in a procedure linkage table look like | |
1144 | this. */ | |
e5a52504 | 1145 | static const bfd_vma elf32_arm_plt_entry [] = |
5e681ec4 PB |
1146 | { |
1147 | 0xe28fc600, /* add ip, pc, #NN */ | |
1148 | 0xe28cca00, /* add ip, ip, #NN */ | |
1149 | 0xe5bcf000, /* ldr pc, [ip, #NN]! */ | |
1150 | 0x00000000, /* unused */ | |
1151 | }; | |
1152 | ||
1153 | #else | |
1154 | ||
5e681ec4 PB |
1155 | /* The first entry in a procedure linkage table looks like |
1156 | this. It is set up so that any shared library function that is | |
1157 | called before the relocation has been set up calls the dynamic | |
1158 | linker first. */ | |
e5a52504 | 1159 | static const bfd_vma elf32_arm_plt0_entry [] = |
917583ad | 1160 | { |
5e681ec4 PB |
1161 | 0xe52de004, /* str lr, [sp, #-4]! */ |
1162 | 0xe59fe004, /* ldr lr, [pc, #4] */ | |
1163 | 0xe08fe00e, /* add lr, pc, lr */ | |
1164 | 0xe5bef008, /* ldr pc, [lr, #8]! */ | |
1165 | 0x00000000, /* &GOT[0] - . */ | |
917583ad | 1166 | }; |
252b5132 RH |
1167 | |
1168 | /* Subsequent entries in a procedure linkage table look like | |
1169 | this. */ | |
e5a52504 | 1170 | static const bfd_vma elf32_arm_plt_entry [] = |
5e681ec4 PB |
1171 | { |
1172 | 0xe28fc600, /* add ip, pc, #0xNN00000 */ | |
1173 | 0xe28cca00, /* add ip, ip, #0xNN000 */ | |
1174 | 0xe5bcf000, /* ldr pc, [ip, #0xNNN]! */ | |
1175 | }; | |
1176 | ||
1177 | #endif | |
252b5132 | 1178 | |
b7693d02 DJ |
1179 | /* An initial stub used if the PLT entry is referenced from Thumb code. */ |
1180 | #define PLT_THUMB_STUB_SIZE 4 | |
1181 | static const bfd_vma elf32_arm_plt_thumb_stub [] = | |
1182 | { | |
1183 | 0x4778, /* bx pc */ | |
1184 | 0x46c0 /* nop */ | |
1185 | }; | |
1186 | ||
e5a52504 MM |
1187 | /* The entries in a PLT when using a DLL-based target with multiple |
1188 | address spaces. */ | |
1189 | static const bfd_vma elf32_arm_symbian_plt_entry [] = | |
1190 | { | |
83a358aa | 1191 | 0xe51ff004, /* ldr pc, [pc, #-4] */ |
e5a52504 MM |
1192 | 0x00000000, /* dcd R_ARM_GLOB_DAT(X) */ |
1193 | }; | |
1194 | ||
e489d0ae PB |
1195 | /* Used to build a map of a section. This is required for mixed-endian |
1196 | code/data. */ | |
1197 | ||
1198 | typedef struct elf32_elf_section_map | |
1199 | { | |
1200 | bfd_vma vma; | |
1201 | char type; | |
1202 | } | |
1203 | elf32_arm_section_map; | |
1204 | ||
1205 | struct _arm_elf_section_data | |
1206 | { | |
1207 | struct bfd_elf_section_data elf; | |
1208 | int mapcount; | |
1209 | elf32_arm_section_map *map; | |
1210 | }; | |
1211 | ||
1212 | #define elf32_arm_section_data(sec) \ | |
1213 | ((struct _arm_elf_section_data *) elf_section_data (sec)) | |
1214 | ||
ba93b8ac DJ |
1215 | /* The size of the thread control block. */ |
1216 | #define TCB_SIZE 8 | |
1217 | ||
1218 | struct elf32_arm_obj_tdata | |
1219 | { | |
1220 | struct elf_obj_tdata root; | |
1221 | ||
1222 | /* tls_type for each local got entry. */ | |
1223 | char *local_got_tls_type; | |
1224 | }; | |
1225 | ||
1226 | #define elf32_arm_tdata(abfd) \ | |
1227 | ((struct elf32_arm_obj_tdata *) (abfd)->tdata.any) | |
1228 | ||
1229 | #define elf32_arm_local_got_tls_type(abfd) \ | |
1230 | (elf32_arm_tdata (abfd)->local_got_tls_type) | |
1231 | ||
1232 | static bfd_boolean | |
1233 | elf32_arm_mkobject (bfd *abfd) | |
1234 | { | |
1235 | bfd_size_type amt = sizeof (struct elf32_arm_obj_tdata); | |
1236 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
1237 | if (abfd->tdata.any == NULL) | |
1238 | return FALSE; | |
1239 | return TRUE; | |
1240 | } | |
1241 | ||
252b5132 RH |
1242 | /* The ARM linker needs to keep track of the number of relocs that it |
1243 | decides to copy in check_relocs for each symbol. This is so that | |
1244 | it can discard PC relative relocs if it doesn't need them when | |
1245 | linking with -Bsymbolic. We store the information in a field | |
1246 | extending the regular ELF linker hash table. */ | |
1247 | ||
ba93b8ac DJ |
1248 | /* This structure keeps track of the number of relocs we have copied |
1249 | for a given symbol. */ | |
5e681ec4 | 1250 | struct elf32_arm_relocs_copied |
917583ad NC |
1251 | { |
1252 | /* Next section. */ | |
5e681ec4 | 1253 | struct elf32_arm_relocs_copied * next; |
917583ad NC |
1254 | /* A section in dynobj. */ |
1255 | asection * section; | |
1256 | /* Number of relocs copied in this section. */ | |
1257 | bfd_size_type count; | |
ba93b8ac DJ |
1258 | /* Number of PC-relative relocs copied in this section. */ |
1259 | bfd_size_type pc_count; | |
917583ad | 1260 | }; |
252b5132 | 1261 | |
ba93b8ac DJ |
1262 | #define elf32_arm_hash_entry(ent) ((struct elf32_arm_link_hash_entry *)(ent)) |
1263 | ||
ba96a88f | 1264 | /* Arm ELF linker hash entry. */ |
252b5132 | 1265 | struct elf32_arm_link_hash_entry |
917583ad NC |
1266 | { |
1267 | struct elf_link_hash_entry root; | |
252b5132 | 1268 | |
917583ad | 1269 | /* Number of PC relative relocs copied for this symbol. */ |
5e681ec4 | 1270 | struct elf32_arm_relocs_copied * relocs_copied; |
b7693d02 DJ |
1271 | |
1272 | /* We reference count Thumb references to a PLT entry separately, | |
1273 | so that we can emit the Thumb trampoline only if needed. */ | |
1274 | bfd_signed_vma plt_thumb_refcount; | |
1275 | ||
1276 | /* Since PLT entries have variable size if the Thumb prologue is | |
1277 | used, we need to record the index into .got.plt instead of | |
1278 | recomputing it from the PLT offset. */ | |
1279 | bfd_signed_vma plt_got_offset; | |
ba93b8ac DJ |
1280 | |
1281 | #define GOT_UNKNOWN 0 | |
1282 | #define GOT_NORMAL 1 | |
1283 | #define GOT_TLS_GD 2 | |
1284 | #define GOT_TLS_IE 4 | |
1285 | unsigned char tls_type; | |
917583ad | 1286 | }; |
252b5132 | 1287 | |
252b5132 | 1288 | /* Traverse an arm ELF linker hash table. */ |
252b5132 RH |
1289 | #define elf32_arm_link_hash_traverse(table, func, info) \ |
1290 | (elf_link_hash_traverse \ | |
1291 | (&(table)->root, \ | |
b7693d02 | 1292 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
1293 | (info))) |
1294 | ||
1295 | /* Get the ARM elf linker hash table from a link_info structure. */ | |
1296 | #define elf32_arm_hash_table(info) \ | |
1297 | ((struct elf32_arm_link_hash_table *) ((info)->hash)) | |
1298 | ||
9b485d32 | 1299 | /* ARM ELF linker hash table. */ |
252b5132 | 1300 | struct elf32_arm_link_hash_table |
917583ad NC |
1301 | { |
1302 | /* The main hash table. */ | |
1303 | struct elf_link_hash_table root; | |
252b5132 | 1304 | |
4cc11e76 | 1305 | /* The size in bytes of the section containing the Thumb-to-ARM glue. */ |
dc810e39 | 1306 | bfd_size_type thumb_glue_size; |
252b5132 | 1307 | |
4cc11e76 | 1308 | /* The size in bytes of the section containing the ARM-to-Thumb glue. */ |
dc810e39 | 1309 | bfd_size_type arm_glue_size; |
252b5132 | 1310 | |
4cc11e76 | 1311 | /* An arbitrary input BFD chosen to hold the glue sections. */ |
917583ad | 1312 | bfd * bfd_of_glue_owner; |
ba96a88f | 1313 | |
e489d0ae PB |
1314 | /* Nonzero to output a BE8 image. */ |
1315 | int byteswap_code; | |
1316 | ||
9c504268 PB |
1317 | /* Zero if R_ARM_TARGET1 means R_ARM_ABS32. |
1318 | Nonzero if R_ARM_TARGET1 means R_ARM_ABS32. */ | |
1319 | int target1_is_rel; | |
1320 | ||
eb043451 PB |
1321 | /* The relocation to use for R_ARM_TARGET2 relocations. */ |
1322 | int target2_reloc; | |
1323 | ||
319850b4 JB |
1324 | /* Nonzero to fix BX instructions for ARMv4 targets. */ |
1325 | int fix_v4bx; | |
1326 | ||
33bfe774 JB |
1327 | /* Nonzero if the ARM/Thumb BLX instructions are available for use. */ |
1328 | int use_blx; | |
1329 | ||
e5a52504 MM |
1330 | /* The number of bytes in the initial entry in the PLT. */ |
1331 | bfd_size_type plt_header_size; | |
1332 | ||
1333 | /* The number of bytes in the subsequent PLT etries. */ | |
1334 | bfd_size_type plt_entry_size; | |
1335 | ||
1336 | /* True if the target system is Symbian OS. */ | |
1337 | int symbian_p; | |
1338 | ||
4e7fd91e PB |
1339 | /* True if the target uses REL relocations. */ |
1340 | int use_rel; | |
1341 | ||
5e681ec4 PB |
1342 | /* Short-cuts to get to dynamic linker sections. */ |
1343 | asection *sgot; | |
1344 | asection *sgotplt; | |
1345 | asection *srelgot; | |
1346 | asection *splt; | |
1347 | asection *srelplt; | |
1348 | asection *sdynbss; | |
1349 | asection *srelbss; | |
1350 | ||
ba93b8ac DJ |
1351 | /* Data for R_ARM_TLS_LDM32 relocations. */ |
1352 | union { | |
1353 | bfd_signed_vma refcount; | |
1354 | bfd_vma offset; | |
1355 | } tls_ldm_got; | |
1356 | ||
5e681ec4 PB |
1357 | /* Small local sym to section mapping cache. */ |
1358 | struct sym_sec_cache sym_sec; | |
b7693d02 DJ |
1359 | |
1360 | /* For convenience in allocate_dynrelocs. */ | |
1361 | bfd * obfd; | |
917583ad | 1362 | }; |
252b5132 | 1363 | |
780a67af NC |
1364 | /* Create an entry in an ARM ELF linker hash table. */ |
1365 | ||
1366 | static struct bfd_hash_entry * | |
57e8b36a NC |
1367 | elf32_arm_link_hash_newfunc (struct bfd_hash_entry * entry, |
1368 | struct bfd_hash_table * table, | |
1369 | const char * string) | |
780a67af NC |
1370 | { |
1371 | struct elf32_arm_link_hash_entry * ret = | |
1372 | (struct elf32_arm_link_hash_entry *) entry; | |
1373 | ||
1374 | /* Allocate the structure if it has not already been allocated by a | |
1375 | subclass. */ | |
1376 | if (ret == (struct elf32_arm_link_hash_entry *) NULL) | |
57e8b36a NC |
1377 | ret = bfd_hash_allocate (table, sizeof (struct elf32_arm_link_hash_entry)); |
1378 | if (ret == NULL) | |
780a67af NC |
1379 | return (struct bfd_hash_entry *) ret; |
1380 | ||
1381 | /* Call the allocation method of the superclass. */ | |
1382 | ret = ((struct elf32_arm_link_hash_entry *) | |
1383 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
1384 | table, string)); | |
57e8b36a | 1385 | if (ret != NULL) |
b7693d02 DJ |
1386 | { |
1387 | ret->relocs_copied = NULL; | |
ba93b8ac | 1388 | ret->tls_type = GOT_UNKNOWN; |
b7693d02 DJ |
1389 | ret->plt_thumb_refcount = 0; |
1390 | ret->plt_got_offset = -1; | |
1391 | } | |
780a67af NC |
1392 | |
1393 | return (struct bfd_hash_entry *) ret; | |
1394 | } | |
1395 | ||
5e681ec4 PB |
1396 | /* Create .got, .gotplt, and .rel.got sections in DYNOBJ, and set up |
1397 | shortcuts to them in our hash table. */ | |
1398 | ||
1399 | static bfd_boolean | |
57e8b36a | 1400 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
5e681ec4 PB |
1401 | { |
1402 | struct elf32_arm_link_hash_table *htab; | |
1403 | ||
e5a52504 MM |
1404 | htab = elf32_arm_hash_table (info); |
1405 | /* BPABI objects never have a GOT, or associated sections. */ | |
1406 | if (htab->symbian_p) | |
1407 | return TRUE; | |
1408 | ||
5e681ec4 PB |
1409 | if (! _bfd_elf_create_got_section (dynobj, info)) |
1410 | return FALSE; | |
1411 | ||
5e681ec4 PB |
1412 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); |
1413 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1414 | if (!htab->sgot || !htab->sgotplt) | |
1415 | abort (); | |
1416 | ||
3496cb2a L |
1417 | htab->srelgot = bfd_make_section_with_flags (dynobj, ".rel.got", |
1418 | (SEC_ALLOC | SEC_LOAD | |
1419 | | SEC_HAS_CONTENTS | |
1420 | | SEC_IN_MEMORY | |
1421 | | SEC_LINKER_CREATED | |
1422 | | SEC_READONLY)); | |
5e681ec4 | 1423 | if (htab->srelgot == NULL |
5e681ec4 PB |
1424 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) |
1425 | return FALSE; | |
1426 | return TRUE; | |
1427 | } | |
1428 | ||
1429 | /* Create .plt, .rel.plt, .got, .got.plt, .rel.got, .dynbss, and | |
1430 | .rel.bss sections in DYNOBJ, and set up shortcuts to them in our | |
1431 | hash table. */ | |
1432 | ||
1433 | static bfd_boolean | |
57e8b36a | 1434 | elf32_arm_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
5e681ec4 PB |
1435 | { |
1436 | struct elf32_arm_link_hash_table *htab; | |
1437 | ||
1438 | htab = elf32_arm_hash_table (info); | |
1439 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
1440 | return FALSE; | |
1441 | ||
1442 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
1443 | return FALSE; | |
1444 | ||
1445 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1446 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rel.plt"); | |
1447 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
1448 | if (!info->shared) | |
1449 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rel.bss"); | |
1450 | ||
e5a52504 MM |
1451 | if (!htab->splt |
1452 | || !htab->srelplt | |
1453 | || !htab->sdynbss | |
5e681ec4 PB |
1454 | || (!info->shared && !htab->srelbss)) |
1455 | abort (); | |
1456 | ||
1457 | return TRUE; | |
1458 | } | |
1459 | ||
1460 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
1461 | ||
1462 | static void | |
1463 | elf32_arm_copy_indirect_symbol (const struct elf_backend_data *bed, | |
1464 | struct elf_link_hash_entry *dir, | |
1465 | struct elf_link_hash_entry *ind) | |
1466 | { | |
1467 | struct elf32_arm_link_hash_entry *edir, *eind; | |
1468 | ||
1469 | edir = (struct elf32_arm_link_hash_entry *) dir; | |
1470 | eind = (struct elf32_arm_link_hash_entry *) ind; | |
1471 | ||
1472 | if (eind->relocs_copied != NULL) | |
1473 | { | |
1474 | if (edir->relocs_copied != NULL) | |
1475 | { | |
1476 | struct elf32_arm_relocs_copied **pp; | |
1477 | struct elf32_arm_relocs_copied *p; | |
1478 | ||
1479 | if (ind->root.type == bfd_link_hash_indirect) | |
1480 | abort (); | |
1481 | ||
1482 | /* Add reloc counts against the weak sym to the strong sym | |
1483 | list. Merge any entries against the same section. */ | |
1484 | for (pp = &eind->relocs_copied; (p = *pp) != NULL; ) | |
1485 | { | |
1486 | struct elf32_arm_relocs_copied *q; | |
1487 | ||
1488 | for (q = edir->relocs_copied; q != NULL; q = q->next) | |
1489 | if (q->section == p->section) | |
1490 | { | |
ba93b8ac | 1491 | q->pc_count += p->pc_count; |
5e681ec4 PB |
1492 | q->count += p->count; |
1493 | *pp = p->next; | |
1494 | break; | |
1495 | } | |
1496 | if (q == NULL) | |
1497 | pp = &p->next; | |
1498 | } | |
1499 | *pp = edir->relocs_copied; | |
1500 | } | |
1501 | ||
1502 | edir->relocs_copied = eind->relocs_copied; | |
1503 | eind->relocs_copied = NULL; | |
1504 | } | |
1505 | ||
b7693d02 DJ |
1506 | /* If the direct symbol already has an associated PLT entry, the |
1507 | indirect symbol should not. If it doesn't, swap refcount information | |
1508 | from the indirect symbol. */ | |
1509 | if (edir->plt_thumb_refcount == 0) | |
1510 | { | |
1511 | edir->plt_thumb_refcount = eind->plt_thumb_refcount; | |
1512 | eind->plt_thumb_refcount = 0; | |
1513 | } | |
1514 | else | |
1515 | BFD_ASSERT (eind->plt_thumb_refcount == 0); | |
1516 | ||
ba93b8ac DJ |
1517 | if (ind->root.type == bfd_link_hash_indirect |
1518 | && dir->got.refcount <= 0) | |
1519 | { | |
1520 | edir->tls_type = eind->tls_type; | |
1521 | eind->tls_type = GOT_UNKNOWN; | |
1522 | } | |
1523 | ||
5e681ec4 PB |
1524 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); |
1525 | } | |
1526 | ||
9b485d32 | 1527 | /* Create an ARM elf linker hash table. */ |
252b5132 RH |
1528 | |
1529 | static struct bfd_link_hash_table * | |
57e8b36a | 1530 | elf32_arm_link_hash_table_create (bfd *abfd) |
252b5132 RH |
1531 | { |
1532 | struct elf32_arm_link_hash_table *ret; | |
dc810e39 | 1533 | bfd_size_type amt = sizeof (struct elf32_arm_link_hash_table); |
252b5132 | 1534 | |
57e8b36a NC |
1535 | ret = bfd_malloc (amt); |
1536 | if (ret == NULL) | |
252b5132 RH |
1537 | return NULL; |
1538 | ||
57e8b36a | 1539 | if (!_bfd_elf_link_hash_table_init (& ret->root, abfd, |
780a67af | 1540 | elf32_arm_link_hash_newfunc)) |
252b5132 | 1541 | { |
e2d34d7d | 1542 | free (ret); |
252b5132 RH |
1543 | return NULL; |
1544 | } | |
1545 | ||
5e681ec4 PB |
1546 | ret->sgot = NULL; |
1547 | ret->sgotplt = NULL; | |
1548 | ret->srelgot = NULL; | |
1549 | ret->splt = NULL; | |
1550 | ret->srelplt = NULL; | |
1551 | ret->sdynbss = NULL; | |
1552 | ret->srelbss = NULL; | |
252b5132 RH |
1553 | ret->thumb_glue_size = 0; |
1554 | ret->arm_glue_size = 0; | |
1555 | ret->bfd_of_glue_owner = NULL; | |
e489d0ae | 1556 | ret->byteswap_code = 0; |
9c504268 | 1557 | ret->target1_is_rel = 0; |
eb043451 | 1558 | ret->target2_reloc = R_ARM_NONE; |
e5a52504 MM |
1559 | #ifdef FOUR_WORD_PLT |
1560 | ret->plt_header_size = 16; | |
1561 | ret->plt_entry_size = 16; | |
1562 | #else | |
1563 | ret->plt_header_size = 20; | |
1564 | ret->plt_entry_size = 12; | |
1565 | #endif | |
33bfe774 JB |
1566 | ret->fix_v4bx = 0; |
1567 | ret->use_blx = 0; | |
e5a52504 | 1568 | ret->symbian_p = 0; |
4e7fd91e | 1569 | ret->use_rel = 1; |
5e681ec4 | 1570 | ret->sym_sec.abfd = NULL; |
b7693d02 | 1571 | ret->obfd = abfd; |
ba93b8ac | 1572 | ret->tls_ldm_got.refcount = 0; |
252b5132 RH |
1573 | |
1574 | return &ret->root.root; | |
1575 | } | |
1576 | ||
9b485d32 NC |
1577 | /* Locate the Thumb encoded calling stub for NAME. */ |
1578 | ||
252b5132 | 1579 | static struct elf_link_hash_entry * |
57e8b36a NC |
1580 | find_thumb_glue (struct bfd_link_info *link_info, |
1581 | const char *name, | |
1582 | bfd *input_bfd) | |
252b5132 RH |
1583 | { |
1584 | char *tmp_name; | |
1585 | struct elf_link_hash_entry *hash; | |
1586 | struct elf32_arm_link_hash_table *hash_table; | |
1587 | ||
1588 | /* We need a pointer to the armelf specific hash table. */ | |
1589 | hash_table = elf32_arm_hash_table (link_info); | |
1590 | ||
57e8b36a NC |
1591 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
1592 | + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
1593 | |
1594 | BFD_ASSERT (tmp_name); | |
1595 | ||
1596 | sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name); | |
1597 | ||
1598 | hash = elf_link_hash_lookup | |
b34976b6 | 1599 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
1600 | |
1601 | if (hash == NULL) | |
1602 | /* xgettext:c-format */ | |
d003868e AM |
1603 | (*_bfd_error_handler) (_("%B: unable to find THUMB glue '%s' for `%s'"), |
1604 | input_bfd, tmp_name, name); | |
252b5132 RH |
1605 | |
1606 | free (tmp_name); | |
1607 | ||
1608 | return hash; | |
1609 | } | |
1610 | ||
9b485d32 NC |
1611 | /* Locate the ARM encoded calling stub for NAME. */ |
1612 | ||
252b5132 | 1613 | static struct elf_link_hash_entry * |
57e8b36a NC |
1614 | find_arm_glue (struct bfd_link_info *link_info, |
1615 | const char *name, | |
1616 | bfd *input_bfd) | |
252b5132 RH |
1617 | { |
1618 | char *tmp_name; | |
1619 | struct elf_link_hash_entry *myh; | |
1620 | struct elf32_arm_link_hash_table *hash_table; | |
1621 | ||
1622 | /* We need a pointer to the elfarm specific hash table. */ | |
1623 | hash_table = elf32_arm_hash_table (link_info); | |
1624 | ||
57e8b36a NC |
1625 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
1626 | + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
1627 | |
1628 | BFD_ASSERT (tmp_name); | |
1629 | ||
1630 | sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name); | |
1631 | ||
1632 | myh = elf_link_hash_lookup | |
b34976b6 | 1633 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
1634 | |
1635 | if (myh == NULL) | |
1636 | /* xgettext:c-format */ | |
d003868e AM |
1637 | (*_bfd_error_handler) (_("%B: unable to find ARM glue '%s' for `%s'"), |
1638 | input_bfd, tmp_name, name); | |
252b5132 RH |
1639 | |
1640 | free (tmp_name); | |
1641 | ||
1642 | return myh; | |
1643 | } | |
1644 | ||
8f6277f5 | 1645 | /* ARM->Thumb glue (static images): |
252b5132 RH |
1646 | |
1647 | .arm | |
1648 | __func_from_arm: | |
1649 | ldr r12, __func_addr | |
1650 | bx r12 | |
1651 | __func_addr: | |
8f6277f5 | 1652 | .word func @ behave as if you saw a ARM_32 reloc. |
252b5132 | 1653 | |
8f6277f5 PB |
1654 | (relocatable images) |
1655 | .arm | |
1656 | __func_from_arm: | |
1657 | ldr r12, __func_offset | |
1658 | add r12, r12, pc | |
1659 | bx r12 | |
1660 | __func_offset: | |
1661 | .word func - . | |
1662 | */ | |
1663 | ||
1664 | #define ARM2THUMB_STATIC_GLUE_SIZE 12 | |
252b5132 RH |
1665 | static const insn32 a2t1_ldr_insn = 0xe59fc000; |
1666 | static const insn32 a2t2_bx_r12_insn = 0xe12fff1c; | |
1667 | static const insn32 a2t3_func_addr_insn = 0x00000001; | |
1668 | ||
8f6277f5 PB |
1669 | #define ARM2THUMB_PIC_GLUE_SIZE 16 |
1670 | static const insn32 a2t1p_ldr_insn = 0xe59fc004; | |
1671 | static const insn32 a2t2p_add_pc_insn = 0xe08cc00f; | |
1672 | static const insn32 a2t3p_bx_r12_insn = 0xe12fff1c; | |
1673 | ||
9b485d32 | 1674 | /* Thumb->ARM: Thumb->(non-interworking aware) ARM |
252b5132 RH |
1675 | |
1676 | .thumb .thumb | |
1677 | .align 2 .align 2 | |
1678 | __func_from_thumb: __func_from_thumb: | |
1679 | bx pc push {r6, lr} | |
1680 | nop ldr r6, __func_addr | |
1681 | .arm mov lr, pc | |
1682 | __func_change_to_arm: bx r6 | |
1683 | b func .arm | |
1684 | __func_back_to_thumb: | |
1685 | ldmia r13! {r6, lr} | |
1686 | bx lr | |
1687 | __func_addr: | |
9b485d32 | 1688 | .word func */ |
252b5132 RH |
1689 | |
1690 | #define THUMB2ARM_GLUE_SIZE 8 | |
1691 | static const insn16 t2a1_bx_pc_insn = 0x4778; | |
1692 | static const insn16 t2a2_noop_insn = 0x46c0; | |
1693 | static const insn32 t2a3_b_insn = 0xea000000; | |
1694 | ||
7e392df6 | 1695 | #ifndef ELFARM_NABI_C_INCLUDED |
b34976b6 | 1696 | bfd_boolean |
57e8b36a | 1697 | bfd_elf32_arm_allocate_interworking_sections (struct bfd_link_info * info) |
252b5132 RH |
1698 | { |
1699 | asection * s; | |
1700 | bfd_byte * foo; | |
1701 | struct elf32_arm_link_hash_table * globals; | |
1702 | ||
1703 | globals = elf32_arm_hash_table (info); | |
1704 | ||
1705 | BFD_ASSERT (globals != NULL); | |
1706 | ||
1707 | if (globals->arm_glue_size != 0) | |
1708 | { | |
1709 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
1710 | ||
dc810e39 AM |
1711 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, |
1712 | ARM2THUMB_GLUE_SECTION_NAME); | |
252b5132 RH |
1713 | |
1714 | BFD_ASSERT (s != NULL); | |
1715 | ||
57e8b36a | 1716 | foo = bfd_alloc (globals->bfd_of_glue_owner, globals->arm_glue_size); |
252b5132 | 1717 | |
eea6121a | 1718 | s->size = globals->arm_glue_size; |
252b5132 RH |
1719 | s->contents = foo; |
1720 | } | |
1721 | ||
1722 | if (globals->thumb_glue_size != 0) | |
1723 | { | |
1724 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
1725 | ||
1726 | s = bfd_get_section_by_name | |
1727 | (globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME); | |
1728 | ||
1729 | BFD_ASSERT (s != NULL); | |
1730 | ||
57e8b36a | 1731 | foo = bfd_alloc (globals->bfd_of_glue_owner, globals->thumb_glue_size); |
252b5132 | 1732 | |
eea6121a | 1733 | s->size = globals->thumb_glue_size; |
252b5132 RH |
1734 | s->contents = foo; |
1735 | } | |
1736 | ||
b34976b6 | 1737 | return TRUE; |
252b5132 RH |
1738 | } |
1739 | ||
1740 | static void | |
57e8b36a NC |
1741 | record_arm_to_thumb_glue (struct bfd_link_info * link_info, |
1742 | struct elf_link_hash_entry * h) | |
252b5132 RH |
1743 | { |
1744 | const char * name = h->root.root.string; | |
63b0f745 | 1745 | asection * s; |
252b5132 RH |
1746 | char * tmp_name; |
1747 | struct elf_link_hash_entry * myh; | |
14a793b2 | 1748 | struct bfd_link_hash_entry * bh; |
252b5132 | 1749 | struct elf32_arm_link_hash_table * globals; |
dc810e39 | 1750 | bfd_vma val; |
252b5132 RH |
1751 | |
1752 | globals = elf32_arm_hash_table (link_info); | |
1753 | ||
1754 | BFD_ASSERT (globals != NULL); | |
1755 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
1756 | ||
1757 | s = bfd_get_section_by_name | |
1758 | (globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME); | |
1759 | ||
252b5132 RH |
1760 | BFD_ASSERT (s != NULL); |
1761 | ||
57e8b36a | 1762 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1); |
252b5132 RH |
1763 | |
1764 | BFD_ASSERT (tmp_name); | |
1765 | ||
1766 | sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name); | |
1767 | ||
1768 | myh = elf_link_hash_lookup | |
b34976b6 | 1769 | (&(globals)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
1770 | |
1771 | if (myh != NULL) | |
1772 | { | |
9b485d32 | 1773 | /* We've already seen this guy. */ |
252b5132 | 1774 | free (tmp_name); |
9b485d32 | 1775 | return; |
252b5132 RH |
1776 | } |
1777 | ||
57e8b36a NC |
1778 | /* The only trick here is using hash_table->arm_glue_size as the value. |
1779 | Even though the section isn't allocated yet, this is where we will be | |
1780 | putting it. */ | |
14a793b2 | 1781 | bh = NULL; |
dc810e39 AM |
1782 | val = globals->arm_glue_size + 1; |
1783 | _bfd_generic_link_add_one_symbol (link_info, globals->bfd_of_glue_owner, | |
1784 | tmp_name, BSF_GLOBAL, s, val, | |
b34976b6 | 1785 | NULL, TRUE, FALSE, &bh); |
252b5132 | 1786 | |
b7693d02 DJ |
1787 | myh = (struct elf_link_hash_entry *) bh; |
1788 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_FUNC); | |
1789 | myh->forced_local = 1; | |
1790 | ||
252b5132 RH |
1791 | free (tmp_name); |
1792 | ||
8f6277f5 PB |
1793 | if ((link_info->shared || globals->root.is_relocatable_executable)) |
1794 | globals->arm_glue_size += ARM2THUMB_PIC_GLUE_SIZE; | |
1795 | else | |
1796 | globals->arm_glue_size += ARM2THUMB_STATIC_GLUE_SIZE; | |
252b5132 RH |
1797 | |
1798 | return; | |
1799 | } | |
1800 | ||
1801 | static void | |
57e8b36a NC |
1802 | record_thumb_to_arm_glue (struct bfd_link_info *link_info, |
1803 | struct elf_link_hash_entry *h) | |
252b5132 RH |
1804 | { |
1805 | const char *name = h->root.root.string; | |
63b0f745 | 1806 | asection *s; |
252b5132 RH |
1807 | char *tmp_name; |
1808 | struct elf_link_hash_entry *myh; | |
14a793b2 | 1809 | struct bfd_link_hash_entry *bh; |
252b5132 | 1810 | struct elf32_arm_link_hash_table *hash_table; |
dc810e39 | 1811 | bfd_vma val; |
252b5132 RH |
1812 | |
1813 | hash_table = elf32_arm_hash_table (link_info); | |
1814 | ||
1815 | BFD_ASSERT (hash_table != NULL); | |
1816 | BFD_ASSERT (hash_table->bfd_of_glue_owner != NULL); | |
1817 | ||
1818 | s = bfd_get_section_by_name | |
1819 | (hash_table->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME); | |
1820 | ||
1821 | BFD_ASSERT (s != NULL); | |
1822 | ||
57e8b36a NC |
1823 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
1824 | + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
1825 | |
1826 | BFD_ASSERT (tmp_name); | |
1827 | ||
1828 | sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name); | |
1829 | ||
1830 | myh = elf_link_hash_lookup | |
b34976b6 | 1831 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
1832 | |
1833 | if (myh != NULL) | |
1834 | { | |
9b485d32 | 1835 | /* We've already seen this guy. */ |
252b5132 | 1836 | free (tmp_name); |
9b485d32 | 1837 | return; |
252b5132 RH |
1838 | } |
1839 | ||
14a793b2 | 1840 | bh = NULL; |
dc810e39 AM |
1841 | val = hash_table->thumb_glue_size + 1; |
1842 | _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner, | |
1843 | tmp_name, BSF_GLOBAL, s, val, | |
b34976b6 | 1844 | NULL, TRUE, FALSE, &bh); |
252b5132 | 1845 | |
9b485d32 | 1846 | /* If we mark it 'Thumb', the disassembler will do a better job. */ |
14a793b2 | 1847 | myh = (struct elf_link_hash_entry *) bh; |
b7693d02 DJ |
1848 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_ARM_TFUNC); |
1849 | myh->forced_local = 1; | |
252b5132 RH |
1850 | |
1851 | free (tmp_name); | |
1852 | ||
252b5132 RH |
1853 | #define CHANGE_TO_ARM "__%s_change_to_arm" |
1854 | #define BACK_FROM_ARM "__%s_back_from_arm" | |
1855 | ||
9b485d32 | 1856 | /* Allocate another symbol to mark where we switch to Arm mode. */ |
57e8b36a NC |
1857 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
1858 | + strlen (CHANGE_TO_ARM) + 1); | |
252b5132 RH |
1859 | |
1860 | BFD_ASSERT (tmp_name); | |
1861 | ||
1862 | sprintf (tmp_name, CHANGE_TO_ARM, name); | |
1863 | ||
14a793b2 | 1864 | bh = NULL; |
dc810e39 AM |
1865 | val = hash_table->thumb_glue_size + 4, |
1866 | _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner, | |
1867 | tmp_name, BSF_LOCAL, s, val, | |
b34976b6 | 1868 | NULL, TRUE, FALSE, &bh); |
252b5132 RH |
1869 | |
1870 | free (tmp_name); | |
1871 | ||
1872 | hash_table->thumb_glue_size += THUMB2ARM_GLUE_SIZE; | |
1873 | ||
1874 | return; | |
1875 | } | |
1876 | ||
8afb0e02 NC |
1877 | /* Add the glue sections to ABFD. This function is called from the |
1878 | linker scripts in ld/emultempl/{armelf}.em. */ | |
9b485d32 | 1879 | |
b34976b6 | 1880 | bfd_boolean |
57e8b36a NC |
1881 | bfd_elf32_arm_add_glue_sections_to_bfd (bfd *abfd, |
1882 | struct bfd_link_info *info) | |
252b5132 | 1883 | { |
252b5132 RH |
1884 | flagword flags; |
1885 | asection *sec; | |
1886 | ||
8afb0e02 NC |
1887 | /* If we are only performing a partial |
1888 | link do not bother adding the glue. */ | |
1049f94e | 1889 | if (info->relocatable) |
b34976b6 | 1890 | return TRUE; |
252b5132 | 1891 | |
252b5132 RH |
1892 | sec = bfd_get_section_by_name (abfd, ARM2THUMB_GLUE_SECTION_NAME); |
1893 | ||
1894 | if (sec == NULL) | |
1895 | { | |
57db232e NC |
1896 | /* Note: we do not include the flag SEC_LINKER_CREATED, as this |
1897 | will prevent elf_link_input_bfd() from processing the contents | |
1898 | of this section. */ | |
811b4bf6 | 1899 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_CODE | SEC_READONLY; |
252b5132 | 1900 | |
3496cb2a L |
1901 | sec = bfd_make_section_with_flags (abfd, |
1902 | ARM2THUMB_GLUE_SECTION_NAME, | |
1903 | flags); | |
252b5132 RH |
1904 | |
1905 | if (sec == NULL | |
252b5132 | 1906 | || !bfd_set_section_alignment (abfd, sec, 2)) |
b34976b6 | 1907 | return FALSE; |
9a5aca8c | 1908 | |
57db232e NC |
1909 | /* Set the gc mark to prevent the section from being removed by garbage |
1910 | collection, despite the fact that no relocs refer to this section. */ | |
1911 | sec->gc_mark = 1; | |
252b5132 RH |
1912 | } |
1913 | ||
1914 | sec = bfd_get_section_by_name (abfd, THUMB2ARM_GLUE_SECTION_NAME); | |
1915 | ||
1916 | if (sec == NULL) | |
1917 | { | |
57e8b36a NC |
1918 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
1919 | | SEC_CODE | SEC_READONLY; | |
252b5132 | 1920 | |
3496cb2a L |
1921 | sec = bfd_make_section_with_flags (abfd, |
1922 | THUMB2ARM_GLUE_SECTION_NAME, | |
1923 | flags); | |
252b5132 RH |
1924 | |
1925 | if (sec == NULL | |
252b5132 | 1926 | || !bfd_set_section_alignment (abfd, sec, 2)) |
b34976b6 | 1927 | return FALSE; |
9a5aca8c | 1928 | |
57db232e | 1929 | sec->gc_mark = 1; |
252b5132 RH |
1930 | } |
1931 | ||
b34976b6 | 1932 | return TRUE; |
8afb0e02 NC |
1933 | } |
1934 | ||
1935 | /* Select a BFD to be used to hold the sections used by the glue code. | |
1936 | This function is called from the linker scripts in ld/emultempl/ | |
1937 | {armelf/pe}.em */ | |
1938 | ||
b34976b6 | 1939 | bfd_boolean |
57e8b36a | 1940 | bfd_elf32_arm_get_bfd_for_interworking (bfd *abfd, struct bfd_link_info *info) |
8afb0e02 NC |
1941 | { |
1942 | struct elf32_arm_link_hash_table *globals; | |
1943 | ||
1944 | /* If we are only performing a partial link | |
1945 | do not bother getting a bfd to hold the glue. */ | |
1049f94e | 1946 | if (info->relocatable) |
b34976b6 | 1947 | return TRUE; |
8afb0e02 | 1948 | |
b7693d02 DJ |
1949 | /* Make sure we don't attach the glue sections to a dynamic object. */ |
1950 | BFD_ASSERT (!(abfd->flags & DYNAMIC)); | |
1951 | ||
8afb0e02 NC |
1952 | globals = elf32_arm_hash_table (info); |
1953 | ||
1954 | BFD_ASSERT (globals != NULL); | |
1955 | ||
1956 | if (globals->bfd_of_glue_owner != NULL) | |
b34976b6 | 1957 | return TRUE; |
8afb0e02 | 1958 | |
252b5132 RH |
1959 | /* Save the bfd for later use. */ |
1960 | globals->bfd_of_glue_owner = abfd; | |
cedb70c5 | 1961 | |
b34976b6 | 1962 | return TRUE; |
252b5132 RH |
1963 | } |
1964 | ||
b34976b6 | 1965 | bfd_boolean |
57e8b36a NC |
1966 | bfd_elf32_arm_process_before_allocation (bfd *abfd, |
1967 | struct bfd_link_info *link_info, | |
eb043451 | 1968 | int byteswap_code) |
252b5132 RH |
1969 | { |
1970 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 1971 | Elf_Internal_Rela *internal_relocs = NULL; |
252b5132 RH |
1972 | Elf_Internal_Rela *irel, *irelend; |
1973 | bfd_byte *contents = NULL; | |
252b5132 RH |
1974 | |
1975 | asection *sec; | |
1976 | struct elf32_arm_link_hash_table *globals; | |
1977 | ||
1978 | /* If we are only performing a partial link do not bother | |
1979 | to construct any glue. */ | |
1049f94e | 1980 | if (link_info->relocatable) |
b34976b6 | 1981 | return TRUE; |
252b5132 RH |
1982 | |
1983 | /* Here we have a bfd that is to be included on the link. We have a hook | |
1984 | to do reloc rummaging, before section sizes are nailed down. */ | |
252b5132 RH |
1985 | globals = elf32_arm_hash_table (link_info); |
1986 | ||
1987 | BFD_ASSERT (globals != NULL); | |
1988 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
1989 | ||
e489d0ae PB |
1990 | if (byteswap_code && !bfd_big_endian (abfd)) |
1991 | { | |
d003868e AM |
1992 | _bfd_error_handler (_("%B: BE8 images only valid in big-endian mode."), |
1993 | abfd); | |
e489d0ae PB |
1994 | return FALSE; |
1995 | } | |
1996 | globals->byteswap_code = byteswap_code; | |
f21f3fe0 | 1997 | |
252b5132 RH |
1998 | /* Rummage around all the relocs and map the glue vectors. */ |
1999 | sec = abfd->sections; | |
2000 | ||
2001 | if (sec == NULL) | |
b34976b6 | 2002 | return TRUE; |
252b5132 RH |
2003 | |
2004 | for (; sec != NULL; sec = sec->next) | |
2005 | { | |
2006 | if (sec->reloc_count == 0) | |
2007 | continue; | |
2008 | ||
2009 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
252b5132 | 2010 | |
9b485d32 | 2011 | /* Load the relocs. */ |
6cdc0ccc | 2012 | internal_relocs |
57e8b36a | 2013 | = _bfd_elf_link_read_relocs (abfd, sec, (void *) NULL, |
45d6a902 | 2014 | (Elf_Internal_Rela *) NULL, FALSE); |
252b5132 | 2015 | |
6cdc0ccc AM |
2016 | if (internal_relocs == NULL) |
2017 | goto error_return; | |
252b5132 | 2018 | |
6cdc0ccc AM |
2019 | irelend = internal_relocs + sec->reloc_count; |
2020 | for (irel = internal_relocs; irel < irelend; irel++) | |
252b5132 RH |
2021 | { |
2022 | long r_type; | |
2023 | unsigned long r_index; | |
252b5132 RH |
2024 | |
2025 | struct elf_link_hash_entry *h; | |
2026 | ||
2027 | r_type = ELF32_R_TYPE (irel->r_info); | |
2028 | r_index = ELF32_R_SYM (irel->r_info); | |
2029 | ||
9b485d32 | 2030 | /* These are the only relocation types we care about. */ |
ba96a88f | 2031 | if ( r_type != R_ARM_PC24 |
b7693d02 | 2032 | && r_type != R_ARM_PLT32 |
5b5bb741 PB |
2033 | #ifndef OLD_ARM_ABI |
2034 | && r_type != R_ARM_CALL | |
2035 | && r_type != R_ARM_JUMP24 | |
2036 | #endif | |
252b5132 RH |
2037 | && r_type != R_ARM_THM_PC22) |
2038 | continue; | |
2039 | ||
2040 | /* Get the section contents if we haven't done so already. */ | |
2041 | if (contents == NULL) | |
2042 | { | |
2043 | /* Get cached copy if it exists. */ | |
2044 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
2045 | contents = elf_section_data (sec)->this_hdr.contents; | |
2046 | else | |
2047 | { | |
2048 | /* Go get them off disk. */ | |
57e8b36a | 2049 | if (! bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
2050 | goto error_return; |
2051 | } | |
2052 | } | |
2053 | ||
a7c10850 | 2054 | /* If the relocation is not against a symbol it cannot concern us. */ |
252b5132 RH |
2055 | h = NULL; |
2056 | ||
9b485d32 | 2057 | /* We don't care about local symbols. */ |
252b5132 RH |
2058 | if (r_index < symtab_hdr->sh_info) |
2059 | continue; | |
2060 | ||
9b485d32 | 2061 | /* This is an external symbol. */ |
252b5132 RH |
2062 | r_index -= symtab_hdr->sh_info; |
2063 | h = (struct elf_link_hash_entry *) | |
2064 | elf_sym_hashes (abfd)[r_index]; | |
2065 | ||
2066 | /* If the relocation is against a static symbol it must be within | |
2067 | the current section and so cannot be a cross ARM/Thumb relocation. */ | |
2068 | if (h == NULL) | |
2069 | continue; | |
2070 | ||
b7693d02 DJ |
2071 | /* If the call will go through a PLT entry then we do not need |
2072 | glue. */ | |
2073 | if (globals->splt != NULL && h->plt.offset != (bfd_vma) -1) | |
2074 | continue; | |
2075 | ||
252b5132 RH |
2076 | switch (r_type) |
2077 | { | |
2078 | case R_ARM_PC24: | |
c6596c5e | 2079 | case R_ARM_PLT32: |
5b5bb741 PB |
2080 | #ifndef OLD_ARM_ABI |
2081 | case R_ARM_CALL: | |
2082 | case R_ARM_JUMP24: | |
2083 | #endif | |
252b5132 | 2084 | /* This one is a call from arm code. We need to look up |
2f0ca46a | 2085 | the target of the call. If it is a thumb target, we |
252b5132 | 2086 | insert glue. */ |
252b5132 RH |
2087 | if (ELF_ST_TYPE(h->type) == STT_ARM_TFUNC) |
2088 | record_arm_to_thumb_glue (link_info, h); | |
2089 | break; | |
2090 | ||
2091 | case R_ARM_THM_PC22: | |
f21f3fe0 | 2092 | /* This one is a call from thumb code. We look |
2f0ca46a | 2093 | up the target of the call. If it is not a thumb |
bcbdc74c | 2094 | target, we insert glue. */ |
252b5132 RH |
2095 | if (ELF_ST_TYPE (h->type) != STT_ARM_TFUNC) |
2096 | record_thumb_to_arm_glue (link_info, h); | |
2097 | break; | |
2098 | ||
2099 | default: | |
c6596c5e | 2100 | abort (); |
252b5132 RH |
2101 | } |
2102 | } | |
6cdc0ccc AM |
2103 | |
2104 | if (contents != NULL | |
2105 | && elf_section_data (sec)->this_hdr.contents != contents) | |
2106 | free (contents); | |
2107 | contents = NULL; | |
2108 | ||
2109 | if (internal_relocs != NULL | |
2110 | && elf_section_data (sec)->relocs != internal_relocs) | |
2111 | free (internal_relocs); | |
2112 | internal_relocs = NULL; | |
252b5132 RH |
2113 | } |
2114 | ||
b34976b6 | 2115 | return TRUE; |
9a5aca8c | 2116 | |
252b5132 | 2117 | error_return: |
6cdc0ccc AM |
2118 | if (contents != NULL |
2119 | && elf_section_data (sec)->this_hdr.contents != contents) | |
2120 | free (contents); | |
2121 | if (internal_relocs != NULL | |
2122 | && elf_section_data (sec)->relocs != internal_relocs) | |
2123 | free (internal_relocs); | |
9a5aca8c | 2124 | |
b34976b6 | 2125 | return FALSE; |
252b5132 | 2126 | } |
7e392df6 | 2127 | #endif |
252b5132 | 2128 | |
eb043451 PB |
2129 | |
2130 | #ifndef OLD_ARM_ABI | |
2131 | /* Set target relocation values needed during linking. */ | |
2132 | ||
2133 | void | |
2134 | bfd_elf32_arm_set_target_relocs (struct bfd_link_info *link_info, | |
2135 | int target1_is_rel, | |
319850b4 | 2136 | char * target2_type, |
33bfe774 JB |
2137 | int fix_v4bx, |
2138 | int use_blx) | |
eb043451 PB |
2139 | { |
2140 | struct elf32_arm_link_hash_table *globals; | |
2141 | ||
2142 | globals = elf32_arm_hash_table (link_info); | |
2143 | ||
2144 | globals->target1_is_rel = target1_is_rel; | |
2145 | if (strcmp (target2_type, "rel") == 0) | |
2146 | globals->target2_reloc = R_ARM_REL32; | |
eeac373a PB |
2147 | else if (strcmp (target2_type, "abs") == 0) |
2148 | globals->target2_reloc = R_ARM_ABS32; | |
eb043451 PB |
2149 | else if (strcmp (target2_type, "got-rel") == 0) |
2150 | globals->target2_reloc = R_ARM_GOT_PREL; | |
2151 | else | |
2152 | { | |
2153 | _bfd_error_handler (_("Invalid TARGET2 relocation type '%s'."), | |
2154 | target2_type); | |
2155 | } | |
319850b4 | 2156 | globals->fix_v4bx = fix_v4bx; |
33bfe774 | 2157 | globals->use_blx |= use_blx; |
eb043451 PB |
2158 | } |
2159 | #endif | |
2160 | ||
252b5132 RH |
2161 | /* The thumb form of a long branch is a bit finicky, because the offset |
2162 | encoding is split over two fields, each in it's own instruction. They | |
f21f3fe0 | 2163 | can occur in any order. So given a thumb form of long branch, and an |
252b5132 | 2164 | offset, insert the offset into the thumb branch and return finished |
f21f3fe0 | 2165 | instruction. |
252b5132 | 2166 | |
f21f3fe0 | 2167 | It takes two thumb instructions to encode the target address. Each has |
4cc11e76 | 2168 | 11 bits to invest. The upper 11 bits are stored in one (identified by |
f21f3fe0 UD |
2169 | H-0.. see below), the lower 11 bits are stored in the other (identified |
2170 | by H-1). | |
252b5132 | 2171 | |
f21f3fe0 | 2172 | Combine together and shifted left by 1 (it's a half word address) and |
252b5132 RH |
2173 | there you have it. |
2174 | ||
2175 | Op: 1111 = F, | |
2176 | H-0, upper address-0 = 000 | |
2177 | Op: 1111 = F, | |
2178 | H-1, lower address-0 = 800 | |
2179 | ||
f21f3fe0 | 2180 | They can be ordered either way, but the arm tools I've seen always put |
252b5132 RH |
2181 | the lower one first. It probably doesn't matter. krk@cygnus.com |
2182 | ||
2183 | XXX: Actually the order does matter. The second instruction (H-1) | |
2184 | moves the computed address into the PC, so it must be the second one | |
2185 | in the sequence. The problem, however is that whilst little endian code | |
2186 | stores the instructions in HI then LOW order, big endian code does the | |
dfc5f959 | 2187 | reverse. nickc@cygnus.com. */ |
252b5132 | 2188 | |
dfc5f959 NC |
2189 | #define LOW_HI_ORDER 0xF800F000 |
2190 | #define HI_LOW_ORDER 0xF000F800 | |
252b5132 RH |
2191 | |
2192 | static insn32 | |
57e8b36a | 2193 | insert_thumb_branch (insn32 br_insn, int rel_off) |
252b5132 RH |
2194 | { |
2195 | unsigned int low_bits; | |
2196 | unsigned int high_bits; | |
2197 | ||
252b5132 RH |
2198 | BFD_ASSERT ((rel_off & 1) != 1); |
2199 | ||
dfc5f959 NC |
2200 | rel_off >>= 1; /* Half word aligned address. */ |
2201 | low_bits = rel_off & 0x000007FF; /* The bottom 11 bits. */ | |
2202 | high_bits = (rel_off >> 11) & 0x000007FF; /* The top 11 bits. */ | |
252b5132 RH |
2203 | |
2204 | if ((br_insn & LOW_HI_ORDER) == LOW_HI_ORDER) | |
2205 | br_insn = LOW_HI_ORDER | (low_bits << 16) | high_bits; | |
2206 | else if ((br_insn & HI_LOW_ORDER) == HI_LOW_ORDER) | |
2207 | br_insn = HI_LOW_ORDER | (high_bits << 16) | low_bits; | |
2208 | else | |
9b485d32 | 2209 | /* FIXME: abort is probably not the right call. krk@cygnus.com */ |
57e8b36a | 2210 | abort (); /* Error - not a valid branch instruction form. */ |
252b5132 | 2211 | |
252b5132 RH |
2212 | return br_insn; |
2213 | } | |
2214 | ||
9b485d32 NC |
2215 | /* Thumb code calling an ARM function. */ |
2216 | ||
252b5132 | 2217 | static int |
57e8b36a NC |
2218 | elf32_thumb_to_arm_stub (struct bfd_link_info * info, |
2219 | const char * name, | |
2220 | bfd * input_bfd, | |
2221 | bfd * output_bfd, | |
2222 | asection * input_section, | |
2223 | bfd_byte * hit_data, | |
2224 | asection * sym_sec, | |
2225 | bfd_vma offset, | |
2226 | bfd_signed_vma addend, | |
2227 | bfd_vma val) | |
252b5132 | 2228 | { |
bcbdc74c | 2229 | asection * s = 0; |
dc810e39 | 2230 | bfd_vma my_offset; |
252b5132 RH |
2231 | unsigned long int tmp; |
2232 | long int ret_offset; | |
bcbdc74c NC |
2233 | struct elf_link_hash_entry * myh; |
2234 | struct elf32_arm_link_hash_table * globals; | |
252b5132 RH |
2235 | |
2236 | myh = find_thumb_glue (info, name, input_bfd); | |
2237 | if (myh == NULL) | |
b34976b6 | 2238 | return FALSE; |
252b5132 RH |
2239 | |
2240 | globals = elf32_arm_hash_table (info); | |
2241 | ||
2242 | BFD_ASSERT (globals != NULL); | |
2243 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2244 | ||
2245 | my_offset = myh->root.u.def.value; | |
2246 | ||
2247 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, | |
2248 | THUMB2ARM_GLUE_SECTION_NAME); | |
2249 | ||
2250 | BFD_ASSERT (s != NULL); | |
2251 | BFD_ASSERT (s->contents != NULL); | |
2252 | BFD_ASSERT (s->output_section != NULL); | |
2253 | ||
2254 | if ((my_offset & 0x01) == 0x01) | |
2255 | { | |
2256 | if (sym_sec != NULL | |
2257 | && sym_sec->owner != NULL | |
2258 | && !INTERWORK_FLAG (sym_sec->owner)) | |
2259 | { | |
8f615d07 | 2260 | (*_bfd_error_handler) |
d003868e AM |
2261 | (_("%B(%s): warning: interworking not enabled.\n" |
2262 | " first occurrence: %B: thumb call to arm"), | |
2263 | sym_sec->owner, input_bfd, name); | |
252b5132 | 2264 | |
b34976b6 | 2265 | return FALSE; |
252b5132 RH |
2266 | } |
2267 | ||
2268 | --my_offset; | |
2269 | myh->root.u.def.value = my_offset; | |
2270 | ||
dc810e39 | 2271 | bfd_put_16 (output_bfd, (bfd_vma) t2a1_bx_pc_insn, |
252b5132 RH |
2272 | s->contents + my_offset); |
2273 | ||
dc810e39 | 2274 | bfd_put_16 (output_bfd, (bfd_vma) t2a2_noop_insn, |
252b5132 RH |
2275 | s->contents + my_offset + 2); |
2276 | ||
2277 | ret_offset = | |
9b485d32 NC |
2278 | /* Address of destination of the stub. */ |
2279 | ((bfd_signed_vma) val) | |
252b5132 | 2280 | - ((bfd_signed_vma) |
57e8b36a NC |
2281 | /* Offset from the start of the current section |
2282 | to the start of the stubs. */ | |
9b485d32 NC |
2283 | (s->output_offset |
2284 | /* Offset of the start of this stub from the start of the stubs. */ | |
2285 | + my_offset | |
2286 | /* Address of the start of the current section. */ | |
2287 | + s->output_section->vma) | |
2288 | /* The branch instruction is 4 bytes into the stub. */ | |
2289 | + 4 | |
2290 | /* ARM branches work from the pc of the instruction + 8. */ | |
2291 | + 8); | |
252b5132 RH |
2292 | |
2293 | bfd_put_32 (output_bfd, | |
dc810e39 | 2294 | (bfd_vma) t2a3_b_insn | ((ret_offset >> 2) & 0x00FFFFFF), |
252b5132 RH |
2295 | s->contents + my_offset + 4); |
2296 | } | |
2297 | ||
2298 | BFD_ASSERT (my_offset <= globals->thumb_glue_size); | |
2299 | ||
427bfd90 NC |
2300 | /* Now go back and fix up the original BL insn to point to here. */ |
2301 | ret_offset = | |
2302 | /* Address of where the stub is located. */ | |
2303 | (s->output_section->vma + s->output_offset + my_offset) | |
2304 | /* Address of where the BL is located. */ | |
57e8b36a NC |
2305 | - (input_section->output_section->vma + input_section->output_offset |
2306 | + offset) | |
427bfd90 NC |
2307 | /* Addend in the relocation. */ |
2308 | - addend | |
2309 | /* Biassing for PC-relative addressing. */ | |
2310 | - 8; | |
252b5132 RH |
2311 | |
2312 | tmp = bfd_get_32 (input_bfd, hit_data | |
2313 | - input_section->vma); | |
2314 | ||
2315 | bfd_put_32 (output_bfd, | |
dc810e39 | 2316 | (bfd_vma) insert_thumb_branch (tmp, ret_offset), |
252b5132 RH |
2317 | hit_data - input_section->vma); |
2318 | ||
b34976b6 | 2319 | return TRUE; |
252b5132 RH |
2320 | } |
2321 | ||
9b485d32 NC |
2322 | /* Arm code calling a Thumb function. */ |
2323 | ||
252b5132 | 2324 | static int |
57e8b36a NC |
2325 | elf32_arm_to_thumb_stub (struct bfd_link_info * info, |
2326 | const char * name, | |
2327 | bfd * input_bfd, | |
2328 | bfd * output_bfd, | |
2329 | asection * input_section, | |
2330 | bfd_byte * hit_data, | |
2331 | asection * sym_sec, | |
2332 | bfd_vma offset, | |
2333 | bfd_signed_vma addend, | |
2334 | bfd_vma val) | |
252b5132 RH |
2335 | { |
2336 | unsigned long int tmp; | |
dc810e39 | 2337 | bfd_vma my_offset; |
bcbdc74c | 2338 | asection * s; |
252b5132 | 2339 | long int ret_offset; |
bcbdc74c NC |
2340 | struct elf_link_hash_entry * myh; |
2341 | struct elf32_arm_link_hash_table * globals; | |
252b5132 RH |
2342 | |
2343 | myh = find_arm_glue (info, name, input_bfd); | |
2344 | if (myh == NULL) | |
b34976b6 | 2345 | return FALSE; |
252b5132 RH |
2346 | |
2347 | globals = elf32_arm_hash_table (info); | |
2348 | ||
2349 | BFD_ASSERT (globals != NULL); | |
2350 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2351 | ||
2352 | my_offset = myh->root.u.def.value; | |
2353 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, | |
2354 | ARM2THUMB_GLUE_SECTION_NAME); | |
2355 | BFD_ASSERT (s != NULL); | |
2356 | BFD_ASSERT (s->contents != NULL); | |
2357 | BFD_ASSERT (s->output_section != NULL); | |
2358 | ||
2359 | if ((my_offset & 0x01) == 0x01) | |
2360 | { | |
2361 | if (sym_sec != NULL | |
2362 | && sym_sec->owner != NULL | |
2363 | && !INTERWORK_FLAG (sym_sec->owner)) | |
2364 | { | |
8f615d07 | 2365 | (*_bfd_error_handler) |
d003868e AM |
2366 | (_("%B(%s): warning: interworking not enabled.\n" |
2367 | " first occurrence: %B: arm call to thumb"), | |
2368 | sym_sec->owner, input_bfd, name); | |
252b5132 | 2369 | } |
9b485d32 | 2370 | |
252b5132 RH |
2371 | --my_offset; |
2372 | myh->root.u.def.value = my_offset; | |
2373 | ||
8f6277f5 PB |
2374 | if ((info->shared || globals->root.is_relocatable_executable)) |
2375 | { | |
2376 | /* For relocatable objects we can't use absolute addresses, | |
2377 | so construct the address from a relative offset. */ | |
2378 | /* TODO: If the offset is small it's probably worth | |
2379 | constructing the address with adds. */ | |
2380 | bfd_put_32 (output_bfd, (bfd_vma) a2t1p_ldr_insn, | |
2381 | s->contents + my_offset); | |
2382 | bfd_put_32 (output_bfd, (bfd_vma) a2t2p_add_pc_insn, | |
2383 | s->contents + my_offset + 4); | |
2384 | bfd_put_32 (output_bfd, (bfd_vma) a2t3p_bx_r12_insn, | |
2385 | s->contents + my_offset + 8); | |
2386 | /* Adjust the offset by 4 for the position of the add, | |
2387 | and 8 for the pipeline offset. */ | |
2388 | ret_offset = (val - (s->output_offset | |
2389 | + s->output_section->vma | |
2390 | + my_offset + 12)) | |
2391 | | 1; | |
2392 | bfd_put_32 (output_bfd, ret_offset, | |
2393 | s->contents + my_offset + 12); | |
2394 | } | |
2395 | else | |
2396 | { | |
2397 | bfd_put_32 (output_bfd, (bfd_vma) a2t1_ldr_insn, | |
2398 | s->contents + my_offset); | |
252b5132 | 2399 | |
8f6277f5 PB |
2400 | bfd_put_32 (output_bfd, (bfd_vma) a2t2_bx_r12_insn, |
2401 | s->contents + my_offset + 4); | |
252b5132 | 2402 | |
8f6277f5 PB |
2403 | /* It's a thumb address. Add the low order bit. */ |
2404 | bfd_put_32 (output_bfd, val | a2t3_func_addr_insn, | |
2405 | s->contents + my_offset + 8); | |
2406 | } | |
252b5132 RH |
2407 | } |
2408 | ||
2409 | BFD_ASSERT (my_offset <= globals->arm_glue_size); | |
2410 | ||
2411 | tmp = bfd_get_32 (input_bfd, hit_data); | |
2412 | tmp = tmp & 0xFF000000; | |
2413 | ||
9b485d32 | 2414 | /* Somehow these are both 4 too far, so subtract 8. */ |
dc810e39 AM |
2415 | ret_offset = (s->output_offset |
2416 | + my_offset | |
2417 | + s->output_section->vma | |
2418 | - (input_section->output_offset | |
2419 | + input_section->output_section->vma | |
2420 | + offset + addend) | |
2421 | - 8); | |
9a5aca8c | 2422 | |
252b5132 RH |
2423 | tmp = tmp | ((ret_offset >> 2) & 0x00FFFFFF); |
2424 | ||
dc810e39 | 2425 | bfd_put_32 (output_bfd, (bfd_vma) tmp, hit_data - input_section->vma); |
252b5132 | 2426 | |
b34976b6 | 2427 | return TRUE; |
252b5132 RH |
2428 | } |
2429 | ||
eb043451 PB |
2430 | |
2431 | #ifndef OLD_ARM_ABI | |
2432 | /* Some relocations map to different relocations depending on the | |
2433 | target. Return the real relocation. */ | |
2434 | static int | |
2435 | arm_real_reloc_type (struct elf32_arm_link_hash_table * globals, | |
2436 | int r_type) | |
2437 | { | |
2438 | switch (r_type) | |
2439 | { | |
2440 | case R_ARM_TARGET1: | |
2441 | if (globals->target1_is_rel) | |
2442 | return R_ARM_REL32; | |
2443 | else | |
2444 | return R_ARM_ABS32; | |
2445 | ||
2446 | case R_ARM_TARGET2: | |
2447 | return globals->target2_reloc; | |
2448 | ||
2449 | default: | |
2450 | return r_type; | |
2451 | } | |
2452 | } | |
2453 | #endif /* OLD_ARM_ABI */ | |
2454 | ||
2455 | ||
ba93b8ac DJ |
2456 | /* Return the base VMA address which should be subtracted from real addresses |
2457 | when resolving @dtpoff relocation. | |
2458 | This is PT_TLS segment p_vaddr. */ | |
2459 | ||
2460 | static bfd_vma | |
2461 | dtpoff_base (struct bfd_link_info *info) | |
2462 | { | |
2463 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2464 | if (elf_hash_table (info)->tls_sec == NULL) | |
2465 | return 0; | |
2466 | return elf_hash_table (info)->tls_sec->vma; | |
2467 | } | |
2468 | ||
2469 | /* Return the relocation value for @tpoff relocation | |
2470 | if STT_TLS virtual address is ADDRESS. */ | |
2471 | ||
2472 | static bfd_vma | |
2473 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
2474 | { | |
2475 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
2476 | bfd_vma base; | |
2477 | ||
2478 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2479 | if (htab->tls_sec == NULL) | |
2480 | return 0; | |
2481 | base = align_power ((bfd_vma) TCB_SIZE, htab->tls_sec->alignment_power); | |
2482 | return address - htab->tls_sec->vma + base; | |
2483 | } | |
2484 | ||
252b5132 | 2485 | /* Perform a relocation as part of a final link. */ |
9b485d32 | 2486 | |
252b5132 | 2487 | static bfd_reloc_status_type |
57e8b36a NC |
2488 | elf32_arm_final_link_relocate (reloc_howto_type * howto, |
2489 | bfd * input_bfd, | |
2490 | bfd * output_bfd, | |
2491 | asection * input_section, | |
2492 | bfd_byte * contents, | |
2493 | Elf_Internal_Rela * rel, | |
2494 | bfd_vma value, | |
2495 | struct bfd_link_info * info, | |
2496 | asection * sym_sec, | |
2497 | const char * sym_name, | |
2498 | int sym_flags, | |
0945cdfd DJ |
2499 | struct elf_link_hash_entry * h, |
2500 | bfd_boolean * unresolved_reloc_p) | |
252b5132 RH |
2501 | { |
2502 | unsigned long r_type = howto->type; | |
2503 | unsigned long r_symndx; | |
2504 | bfd_byte * hit_data = contents + rel->r_offset; | |
2505 | bfd * dynobj = NULL; | |
2506 | Elf_Internal_Shdr * symtab_hdr; | |
2507 | struct elf_link_hash_entry ** sym_hashes; | |
2508 | bfd_vma * local_got_offsets; | |
2509 | asection * sgot = NULL; | |
2510 | asection * splt = NULL; | |
2511 | asection * sreloc = NULL; | |
252b5132 | 2512 | bfd_vma addend; |
ba96a88f NC |
2513 | bfd_signed_vma signed_addend; |
2514 | struct elf32_arm_link_hash_table * globals; | |
f21f3fe0 | 2515 | |
9c504268 PB |
2516 | globals = elf32_arm_hash_table (info); |
2517 | ||
2518 | #ifndef OLD_ARM_ABI | |
2519 | /* Some relocation type map to different relocations depending on the | |
2520 | target. We pick the right one here. */ | |
eb043451 PB |
2521 | r_type = arm_real_reloc_type (globals, r_type); |
2522 | if (r_type != howto->type) | |
2523 | howto = elf32_arm_howto_from_type (r_type); | |
9c504268 PB |
2524 | #endif /* OLD_ARM_ABI */ |
2525 | ||
cac15327 NC |
2526 | /* If the start address has been set, then set the EF_ARM_HASENTRY |
2527 | flag. Setting this more than once is redundant, but the cost is | |
2528 | not too high, and it keeps the code simple. | |
99e4ae17 | 2529 | |
cac15327 NC |
2530 | The test is done here, rather than somewhere else, because the |
2531 | start address is only set just before the final link commences. | |
2532 | ||
2533 | Note - if the user deliberately sets a start address of 0, the | |
2534 | flag will not be set. */ | |
2535 | if (bfd_get_start_address (output_bfd) != 0) | |
2536 | elf_elfheader (output_bfd)->e_flags |= EF_ARM_HASENTRY; | |
99e4ae17 | 2537 | |
252b5132 RH |
2538 | dynobj = elf_hash_table (info)->dynobj; |
2539 | if (dynobj) | |
2540 | { | |
2541 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2542 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2543 | } | |
2544 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; | |
2545 | sym_hashes = elf_sym_hashes (input_bfd); | |
2546 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2547 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2548 | ||
4e7fd91e | 2549 | if (globals->use_rel) |
ba96a88f | 2550 | { |
4e7fd91e PB |
2551 | addend = bfd_get_32 (input_bfd, hit_data) & howto->src_mask; |
2552 | ||
2553 | if (addend & ((howto->src_mask + 1) >> 1)) | |
2554 | { | |
2555 | signed_addend = -1; | |
2556 | signed_addend &= ~ howto->src_mask; | |
2557 | signed_addend |= addend; | |
2558 | } | |
2559 | else | |
2560 | signed_addend = addend; | |
ba96a88f NC |
2561 | } |
2562 | else | |
4e7fd91e | 2563 | addend = signed_addend = rel->r_addend; |
f21f3fe0 | 2564 | |
252b5132 RH |
2565 | switch (r_type) |
2566 | { | |
2567 | case R_ARM_NONE: | |
28a094c2 DJ |
2568 | /* We don't need to find a value for this symbol. It's just a |
2569 | marker. */ | |
2570 | *unresolved_reloc_p = FALSE; | |
252b5132 RH |
2571 | return bfd_reloc_ok; |
2572 | ||
2573 | case R_ARM_PC24: | |
2574 | case R_ARM_ABS32: | |
2575 | case R_ARM_REL32: | |
dfc5f959 | 2576 | #ifndef OLD_ARM_ABI |
5b5bb741 PB |
2577 | case R_ARM_CALL: |
2578 | case R_ARM_JUMP24: | |
dfc5f959 | 2579 | case R_ARM_XPC25: |
eb043451 | 2580 | case R_ARM_PREL31: |
dfc5f959 | 2581 | #endif |
7359ea65 | 2582 | case R_ARM_PLT32: |
5e681ec4 PB |
2583 | /* r_symndx will be zero only for relocs against symbols |
2584 | from removed linkonce sections, or sections discarded by | |
2585 | a linker script. */ | |
2586 | if (r_symndx == 0) | |
2587 | return bfd_reloc_ok; | |
2588 | ||
7359ea65 DJ |
2589 | /* Handle relocations which should use the PLT entry. ABS32/REL32 |
2590 | will use the symbol's value, which may point to a PLT entry, but we | |
2591 | don't need to handle that here. If we created a PLT entry, all | |
2592 | branches in this object should go to it. */ | |
ee06dc07 | 2593 | if ((r_type != R_ARM_ABS32 && r_type != R_ARM_REL32) |
7359ea65 | 2594 | && h != NULL |
c84cd8ee | 2595 | && splt != NULL |
7359ea65 DJ |
2596 | && h->plt.offset != (bfd_vma) -1) |
2597 | { | |
c84cd8ee DJ |
2598 | /* If we've created a .plt section, and assigned a PLT entry to |
2599 | this function, it should not be known to bind locally. If | |
2600 | it were, we would have cleared the PLT entry. */ | |
7359ea65 DJ |
2601 | BFD_ASSERT (!SYMBOL_CALLS_LOCAL (info, h)); |
2602 | ||
2603 | value = (splt->output_section->vma | |
2604 | + splt->output_offset | |
2605 | + h->plt.offset); | |
0945cdfd | 2606 | *unresolved_reloc_p = FALSE; |
7359ea65 DJ |
2607 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
2608 | contents, rel->r_offset, value, | |
2609 | (bfd_vma) 0); | |
2610 | } | |
2611 | ||
67687978 PB |
2612 | /* When generating a shared object or relocatable executable, these |
2613 | relocations are copied into the output file to be resolved at | |
2614 | run time. */ | |
2615 | if ((info->shared || globals->root.is_relocatable_executable) | |
7359ea65 | 2616 | && (input_section->flags & SEC_ALLOC) |
ee06dc07 PB |
2617 | && (r_type != R_ARM_REL32 |
2618 | || !SYMBOL_CALLS_LOCAL (info, h)) | |
7359ea65 DJ |
2619 | && (h == NULL |
2620 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2621 | || h->root.type != bfd_link_hash_undefweak) | |
2622 | && r_type != R_ARM_PC24 | |
5b5bb741 PB |
2623 | #ifndef OLD_ARM_ABI |
2624 | && r_type != R_ARM_CALL | |
2625 | && r_type != R_ARM_JUMP24 | |
ee06dc07 | 2626 | && r_type != R_ARM_PREL31 |
5b5bb741 | 2627 | #endif |
7359ea65 | 2628 | && r_type != R_ARM_PLT32) |
252b5132 | 2629 | { |
947216bf AM |
2630 | Elf_Internal_Rela outrel; |
2631 | bfd_byte *loc; | |
b34976b6 | 2632 | bfd_boolean skip, relocate; |
f21f3fe0 | 2633 | |
0945cdfd DJ |
2634 | *unresolved_reloc_p = FALSE; |
2635 | ||
252b5132 RH |
2636 | if (sreloc == NULL) |
2637 | { | |
2638 | const char * name; | |
f21f3fe0 | 2639 | |
252b5132 RH |
2640 | name = (bfd_elf_string_from_elf_section |
2641 | (input_bfd, | |
2642 | elf_elfheader (input_bfd)->e_shstrndx, | |
2643 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
2644 | if (name == NULL) | |
2645 | return bfd_reloc_notsupported; | |
f21f3fe0 | 2646 | |
252b5132 RH |
2647 | BFD_ASSERT (strncmp (name, ".rel", 4) == 0 |
2648 | && strcmp (bfd_get_section_name (input_bfd, | |
2649 | input_section), | |
2650 | name + 4) == 0); | |
f21f3fe0 | 2651 | |
252b5132 RH |
2652 | sreloc = bfd_get_section_by_name (dynobj, name); |
2653 | BFD_ASSERT (sreloc != NULL); | |
2654 | } | |
f21f3fe0 | 2655 | |
b34976b6 AM |
2656 | skip = FALSE; |
2657 | relocate = FALSE; | |
f21f3fe0 | 2658 | |
c629eae0 JJ |
2659 | outrel.r_offset = |
2660 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2661 | rel->r_offset); | |
2662 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2663 | skip = TRUE; |
0bb2d96a | 2664 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2665 | skip = TRUE, relocate = TRUE; |
252b5132 RH |
2666 | outrel.r_offset += (input_section->output_section->vma |
2667 | + input_section->output_offset); | |
f21f3fe0 | 2668 | |
252b5132 | 2669 | if (skip) |
0bb2d96a | 2670 | memset (&outrel, 0, sizeof outrel); |
5e681ec4 PB |
2671 | else if (h != NULL |
2672 | && h->dynindx != -1 | |
7359ea65 | 2673 | && (!info->shared |
5e681ec4 | 2674 | || !info->symbolic |
f5385ebf | 2675 | || !h->def_regular)) |
5e681ec4 | 2676 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
252b5132 RH |
2677 | else |
2678 | { | |
a16385dc MM |
2679 | int symbol; |
2680 | ||
5e681ec4 PB |
2681 | /* This symbol is local, or marked to become local. */ |
2682 | relocate = TRUE; | |
b7693d02 DJ |
2683 | if (sym_flags == STT_ARM_TFUNC) |
2684 | value |= 1; | |
a16385dc | 2685 | if (globals->symbian_p) |
6366ff1e MM |
2686 | { |
2687 | /* On Symbian OS, the data segment and text segement | |
2688 | can be relocated independently. Therefore, we | |
2689 | must indicate the segment to which this | |
2690 | relocation is relative. The BPABI allows us to | |
2691 | use any symbol in the right segment; we just use | |
2692 | the section symbol as it is convenient. (We | |
2693 | cannot use the symbol given by "h" directly as it | |
2694 | will not appear in the dynamic symbol table.) */ | |
10dbd1f3 NC |
2695 | if (sym_sec) |
2696 | symbol = elf_section_data (sym_sec->output_section)->dynindx; | |
2697 | else | |
2698 | symbol = elf_section_data (input_section->output_section)->dynindx; | |
6366ff1e MM |
2699 | BFD_ASSERT (symbol != 0); |
2700 | } | |
a16385dc MM |
2701 | else |
2702 | /* On SVR4-ish systems, the dynamic loader cannot | |
2703 | relocate the text and data segments independently, | |
2704 | so the symbol does not matter. */ | |
2705 | symbol = 0; | |
2706 | outrel.r_info = ELF32_R_INFO (symbol, R_ARM_RELATIVE); | |
252b5132 | 2707 | } |
f21f3fe0 | 2708 | |
947216bf AM |
2709 | loc = sreloc->contents; |
2710 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel); | |
2711 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
9a5aca8c | 2712 | |
f21f3fe0 | 2713 | /* If this reloc is against an external symbol, we do not want to |
252b5132 | 2714 | fiddle with the addend. Otherwise, we need to include the symbol |
9b485d32 | 2715 | value so that it becomes an addend for the dynamic reloc. */ |
252b5132 RH |
2716 | if (! relocate) |
2717 | return bfd_reloc_ok; | |
9a5aca8c | 2718 | |
f21f3fe0 | 2719 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
252b5132 RH |
2720 | contents, rel->r_offset, value, |
2721 | (bfd_vma) 0); | |
2722 | } | |
2723 | else switch (r_type) | |
2724 | { | |
dfc5f959 NC |
2725 | #ifndef OLD_ARM_ABI |
2726 | case R_ARM_XPC25: /* Arm BLX instruction. */ | |
5b5bb741 PB |
2727 | case R_ARM_CALL: |
2728 | case R_ARM_JUMP24: | |
dfc5f959 NC |
2729 | #endif |
2730 | case R_ARM_PC24: /* Arm B/BL instruction */ | |
7359ea65 | 2731 | case R_ARM_PLT32: |
dfc5f959 NC |
2732 | #ifndef OLD_ARM_ABI |
2733 | if (r_type == R_ARM_XPC25) | |
252b5132 | 2734 | { |
dfc5f959 NC |
2735 | /* Check for Arm calling Arm function. */ |
2736 | /* FIXME: Should we translate the instruction into a BL | |
2737 | instruction instead ? */ | |
2738 | if (sym_flags != STT_ARM_TFUNC) | |
d003868e AM |
2739 | (*_bfd_error_handler) |
2740 | (_("\%B: Warning: Arm BLX instruction targets Arm function '%s'."), | |
2741 | input_bfd, | |
2742 | h ? h->root.root.string : "(local)"); | |
dfc5f959 NC |
2743 | } |
2744 | else | |
2745 | #endif | |
2746 | { | |
2747 | /* Check for Arm calling Thumb function. */ | |
2748 | if (sym_flags == STT_ARM_TFUNC) | |
2749 | { | |
57e8b36a NC |
2750 | elf32_arm_to_thumb_stub (info, sym_name, input_bfd, |
2751 | output_bfd, input_section, | |
2752 | hit_data, sym_sec, rel->r_offset, | |
dfc5f959 NC |
2753 | signed_addend, value); |
2754 | return bfd_reloc_ok; | |
2755 | } | |
252b5132 | 2756 | } |
ba96a88f | 2757 | |
dea514f5 PB |
2758 | /* The ARM ELF ABI says that this reloc is computed as: S - P + A |
2759 | where: | |
2760 | S is the address of the symbol in the relocation. | |
2761 | P is address of the instruction being relocated. | |
2762 | A is the addend (extracted from the instruction) in bytes. | |
2763 | ||
2764 | S is held in 'value'. | |
2765 | P is the base address of the section containing the | |
2766 | instruction plus the offset of the reloc into that | |
2767 | section, ie: | |
2768 | (input_section->output_section->vma + | |
2769 | input_section->output_offset + | |
2770 | rel->r_offset). | |
2771 | A is the addend, converted into bytes, ie: | |
2772 | (signed_addend * 4) | |
2773 | ||
2774 | Note: None of these operations have knowledge of the pipeline | |
2775 | size of the processor, thus it is up to the assembler to | |
2776 | encode this information into the addend. */ | |
2777 | value -= (input_section->output_section->vma | |
2778 | + input_section->output_offset); | |
2779 | value -= rel->r_offset; | |
4e7fd91e PB |
2780 | if (globals->use_rel) |
2781 | value += (signed_addend << howto->size); | |
2782 | else | |
2783 | /* RELA addends do not have to be adjusted by howto->size. */ | |
2784 | value += signed_addend; | |
23080146 | 2785 | |
dcb5e6e6 NC |
2786 | signed_addend = value; |
2787 | signed_addend >>= howto->rightshift; | |
9a5aca8c | 2788 | |
59f2c4e7 NC |
2789 | /* It is not an error for an undefined weak reference to be |
2790 | out of range. Any program that branches to such a symbol | |
9a5aca8c AM |
2791 | is going to crash anyway, so there is no point worrying |
2792 | about getting the destination exactly right. */ | |
59f2c4e7 NC |
2793 | if (! h || h->root.type != bfd_link_hash_undefweak) |
2794 | { | |
9b485d32 | 2795 | /* Perform a signed range check. */ |
dcb5e6e6 | 2796 | if ( signed_addend > ((bfd_signed_vma) (howto->dst_mask >> 1)) |
59f2c4e7 NC |
2797 | || signed_addend < - ((bfd_signed_vma) ((howto->dst_mask + 1) >> 1))) |
2798 | return bfd_reloc_overflow; | |
2799 | } | |
9a5aca8c | 2800 | |
dcb5e6e6 NC |
2801 | #ifndef OLD_ARM_ABI |
2802 | /* If necessary set the H bit in the BLX instruction. */ | |
2803 | if (r_type == R_ARM_XPC25 && ((value & 2) == 2)) | |
2804 | value = (signed_addend & howto->dst_mask) | |
2805 | | (bfd_get_32 (input_bfd, hit_data) & (~ howto->dst_mask)) | |
2806 | | (1 << 24); | |
2807 | else | |
2808 | #endif | |
2809 | value = (signed_addend & howto->dst_mask) | |
2810 | | (bfd_get_32 (input_bfd, hit_data) & (~ howto->dst_mask)); | |
252b5132 | 2811 | break; |
f21f3fe0 | 2812 | |
252b5132 RH |
2813 | case R_ARM_ABS32: |
2814 | value += addend; | |
2815 | if (sym_flags == STT_ARM_TFUNC) | |
2816 | value |= 1; | |
2817 | break; | |
f21f3fe0 | 2818 | |
252b5132 RH |
2819 | case R_ARM_REL32: |
2820 | value -= (input_section->output_section->vma | |
62efb346 | 2821 | + input_section->output_offset + rel->r_offset); |
252b5132 RH |
2822 | value += addend; |
2823 | break; | |
eb043451 PB |
2824 | |
2825 | #ifndef OLD_ARM_ABI | |
2826 | case R_ARM_PREL31: | |
2827 | value -= (input_section->output_section->vma | |
2828 | + input_section->output_offset + rel->r_offset); | |
2829 | value += signed_addend; | |
2830 | if (! h || h->root.type != bfd_link_hash_undefweak) | |
2831 | { | |
2832 | /* Check for overflow */ | |
2833 | if ((value ^ (value >> 1)) & (1 << 30)) | |
2834 | return bfd_reloc_overflow; | |
2835 | } | |
2836 | value &= 0x7fffffff; | |
2837 | value |= (bfd_get_32 (input_bfd, hit_data) & 0x80000000); | |
2838 | if (sym_flags == STT_ARM_TFUNC) | |
2839 | value |= 1; | |
2840 | break; | |
2841 | #endif | |
252b5132 | 2842 | } |
f21f3fe0 | 2843 | |
252b5132 RH |
2844 | bfd_put_32 (input_bfd, value, hit_data); |
2845 | return bfd_reloc_ok; | |
2846 | ||
2847 | case R_ARM_ABS8: | |
2848 | value += addend; | |
2849 | if ((long) value > 0x7f || (long) value < -0x80) | |
2850 | return bfd_reloc_overflow; | |
2851 | ||
2852 | bfd_put_8 (input_bfd, value, hit_data); | |
2853 | return bfd_reloc_ok; | |
2854 | ||
2855 | case R_ARM_ABS16: | |
2856 | value += addend; | |
2857 | ||
2858 | if ((long) value > 0x7fff || (long) value < -0x8000) | |
2859 | return bfd_reloc_overflow; | |
2860 | ||
2861 | bfd_put_16 (input_bfd, value, hit_data); | |
2862 | return bfd_reloc_ok; | |
2863 | ||
2864 | case R_ARM_ABS12: | |
2865 | /* Support ldr and str instruction for the arm */ | |
2866 | /* Also thumb b (unconditional branch). ??? Really? */ | |
2867 | value += addend; | |
2868 | ||
2869 | if ((long) value > 0x7ff || (long) value < -0x800) | |
2870 | return bfd_reloc_overflow; | |
2871 | ||
2872 | value |= (bfd_get_32 (input_bfd, hit_data) & 0xfffff000); | |
2873 | bfd_put_32 (input_bfd, value, hit_data); | |
2874 | return bfd_reloc_ok; | |
2875 | ||
2876 | case R_ARM_THM_ABS5: | |
9b485d32 | 2877 | /* Support ldr and str instructions for the thumb. */ |
4e7fd91e PB |
2878 | if (globals->use_rel) |
2879 | { | |
2880 | /* Need to refetch addend. */ | |
2881 | addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask; | |
2882 | /* ??? Need to determine shift amount from operand size. */ | |
2883 | addend >>= howto->rightshift; | |
2884 | } | |
252b5132 RH |
2885 | value += addend; |
2886 | ||
2887 | /* ??? Isn't value unsigned? */ | |
2888 | if ((long) value > 0x1f || (long) value < -0x10) | |
2889 | return bfd_reloc_overflow; | |
2890 | ||
2891 | /* ??? Value needs to be properly shifted into place first. */ | |
2892 | value |= bfd_get_16 (input_bfd, hit_data) & 0xf83f; | |
2893 | bfd_put_16 (input_bfd, value, hit_data); | |
2894 | return bfd_reloc_ok; | |
2895 | ||
dfc5f959 NC |
2896 | #ifndef OLD_ARM_ABI |
2897 | case R_ARM_THM_XPC22: | |
2898 | #endif | |
252b5132 | 2899 | case R_ARM_THM_PC22: |
dfc5f959 | 2900 | /* Thumb BL (branch long instruction). */ |
252b5132 | 2901 | { |
b34976b6 AM |
2902 | bfd_vma relocation; |
2903 | bfd_boolean overflow = FALSE; | |
2904 | bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data); | |
2905 | bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2); | |
df212a7e | 2906 | bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift; |
ba96a88f | 2907 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; |
b34976b6 | 2908 | bfd_vma check; |
252b5132 | 2909 | bfd_signed_vma signed_check; |
33bfe774 | 2910 | bfd_boolean thumb_plt_call = FALSE; |
252b5132 | 2911 | |
252b5132 RH |
2912 | /* Need to refetch the addend and squish the two 11 bit pieces |
2913 | together. */ | |
4e7fd91e PB |
2914 | if (globals->use_rel) |
2915 | { | |
2916 | bfd_vma upper = upper_insn & 0x7ff; | |
2917 | bfd_vma lower = lower_insn & 0x7ff; | |
2918 | upper = (upper ^ 0x400) - 0x400; /* Sign extend. */ | |
2919 | addend = (upper << 12) | (lower << 1); | |
2920 | signed_addend = addend; | |
2921 | } | |
dfc5f959 NC |
2922 | #ifndef OLD_ARM_ABI |
2923 | if (r_type == R_ARM_THM_XPC22) | |
2924 | { | |
2925 | /* Check for Thumb to Thumb call. */ | |
2926 | /* FIXME: Should we translate the instruction into a BL | |
2927 | instruction instead ? */ | |
2928 | if (sym_flags == STT_ARM_TFUNC) | |
d003868e AM |
2929 | (*_bfd_error_handler) |
2930 | (_("%B: Warning: Thumb BLX instruction targets thumb function '%s'."), | |
2931 | input_bfd, | |
2932 | h ? h->root.root.string : "(local)"); | |
dfc5f959 NC |
2933 | } |
2934 | else | |
2935 | #endif | |
252b5132 | 2936 | { |
dfc5f959 NC |
2937 | /* If it is not a call to Thumb, assume call to Arm. |
2938 | If it is a call relative to a section name, then it is not a | |
b7693d02 DJ |
2939 | function call at all, but rather a long jump. Calls through |
2940 | the PLT do not require stubs. */ | |
2941 | if (sym_flags != STT_ARM_TFUNC && sym_flags != STT_SECTION | |
2942 | && (h == NULL || splt == NULL | |
2943 | || h->plt.offset == (bfd_vma) -1)) | |
dfc5f959 NC |
2944 | { |
2945 | if (elf32_thumb_to_arm_stub | |
2946 | (info, sym_name, input_bfd, output_bfd, input_section, | |
2947 | hit_data, sym_sec, rel->r_offset, signed_addend, value)) | |
2948 | return bfd_reloc_ok; | |
2949 | else | |
2950 | return bfd_reloc_dangerous; | |
2951 | } | |
252b5132 | 2952 | } |
f21f3fe0 | 2953 | |
b7693d02 DJ |
2954 | /* Handle calls via the PLT. */ |
2955 | if (h != NULL && splt != NULL && h->plt.offset != (bfd_vma) -1) | |
2956 | { | |
2957 | value = (splt->output_section->vma | |
2958 | + splt->output_offset | |
2959 | + h->plt.offset); | |
33bfe774 JB |
2960 | if (globals->use_blx) |
2961 | { | |
2962 | /* If the Thumb BLX instruction is available, convert the | |
2963 | BL to a BLX instruction to call the ARM-mode PLT entry. */ | |
2964 | if ((lower_insn & (0x3 << 11)) == 0x3 << 11) | |
2965 | { | |
2966 | lower_insn = (lower_insn & ~(0x3 << 11)) | 0x1 << 11; | |
2967 | thumb_plt_call = TRUE; | |
2968 | } | |
2969 | } | |
2970 | else | |
2971 | /* Target the Thumb stub before the ARM PLT entry. */ | |
2972 | value -= PLT_THUMB_STUB_SIZE; | |
0945cdfd | 2973 | *unresolved_reloc_p = FALSE; |
b7693d02 DJ |
2974 | } |
2975 | ||
ba96a88f | 2976 | relocation = value + signed_addend; |
f21f3fe0 | 2977 | |
252b5132 | 2978 | relocation -= (input_section->output_section->vma |
ba96a88f NC |
2979 | + input_section->output_offset |
2980 | + rel->r_offset); | |
9a5aca8c | 2981 | |
252b5132 RH |
2982 | check = relocation >> howto->rightshift; |
2983 | ||
2984 | /* If this is a signed value, the rightshift just dropped | |
2985 | leading 1 bits (assuming twos complement). */ | |
2986 | if ((bfd_signed_vma) relocation >= 0) | |
2987 | signed_check = check; | |
2988 | else | |
2989 | signed_check = check | ~((bfd_vma) -1 >> howto->rightshift); | |
2990 | ||
252b5132 | 2991 | /* Assumes two's complement. */ |
ba96a88f | 2992 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) |
b34976b6 | 2993 | overflow = TRUE; |
252b5132 | 2994 | |
df425bc0 | 2995 | #ifndef OLD_ARM_ABI |
33bfe774 JB |
2996 | if ((r_type == R_ARM_THM_XPC22 |
2997 | && ((lower_insn & 0x1800) == 0x0800)) | |
2998 | || thumb_plt_call) | |
c62e1cc3 NC |
2999 | /* For a BLX instruction, make sure that the relocation is rounded up |
3000 | to a word boundary. This follows the semantics of the instruction | |
3001 | which specifies that bit 1 of the target address will come from bit | |
3002 | 1 of the base address. */ | |
3003 | relocation = (relocation + 2) & ~ 3; | |
99e4ae17 | 3004 | #endif |
c62e1cc3 NC |
3005 | /* Put RELOCATION back into the insn. */ |
3006 | upper_insn = (upper_insn & ~(bfd_vma) 0x7ff) | ((relocation >> 12) & 0x7ff); | |
3007 | lower_insn = (lower_insn & ~(bfd_vma) 0x7ff) | ((relocation >> 1) & 0x7ff); | |
3008 | ||
252b5132 RH |
3009 | /* Put the relocated value back in the object file: */ |
3010 | bfd_put_16 (input_bfd, upper_insn, hit_data); | |
3011 | bfd_put_16 (input_bfd, lower_insn, hit_data + 2); | |
3012 | ||
3013 | return (overflow ? bfd_reloc_overflow : bfd_reloc_ok); | |
3014 | } | |
3015 | break; | |
3016 | ||
51c5503b | 3017 | case R_ARM_THM_PC11: |
e37c699c | 3018 | case R_ARM_THM_PC9: |
51c5503b NC |
3019 | /* Thumb B (branch) instruction). */ |
3020 | { | |
6cf9e9fe | 3021 | bfd_signed_vma relocation; |
51c5503b NC |
3022 | bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1; |
3023 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; | |
51c5503b NC |
3024 | bfd_signed_vma signed_check; |
3025 | ||
4e7fd91e | 3026 | if (globals->use_rel) |
6cf9e9fe | 3027 | { |
4e7fd91e PB |
3028 | /* Need to refetch addend. */ |
3029 | addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask; | |
3030 | if (addend & ((howto->src_mask + 1) >> 1)) | |
3031 | { | |
3032 | signed_addend = -1; | |
3033 | signed_addend &= ~ howto->src_mask; | |
3034 | signed_addend |= addend; | |
3035 | } | |
3036 | else | |
3037 | signed_addend = addend; | |
3038 | /* The value in the insn has been right shifted. We need to | |
3039 | undo this, so that we can perform the address calculation | |
3040 | in terms of bytes. */ | |
3041 | signed_addend <<= howto->rightshift; | |
6cf9e9fe | 3042 | } |
6cf9e9fe | 3043 | relocation = value + signed_addend; |
51c5503b NC |
3044 | |
3045 | relocation -= (input_section->output_section->vma | |
3046 | + input_section->output_offset | |
3047 | + rel->r_offset); | |
3048 | ||
6cf9e9fe NC |
3049 | relocation >>= howto->rightshift; |
3050 | signed_check = relocation; | |
3051 | relocation &= howto->dst_mask; | |
51c5503b | 3052 | relocation |= (bfd_get_16 (input_bfd, hit_data) & (~ howto->dst_mask)); |
cedb70c5 | 3053 | |
51c5503b NC |
3054 | bfd_put_16 (input_bfd, relocation, hit_data); |
3055 | ||
3056 | /* Assumes two's complement. */ | |
3057 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) | |
3058 | return bfd_reloc_overflow; | |
3059 | ||
3060 | return bfd_reloc_ok; | |
3061 | } | |
cedb70c5 | 3062 | |
1f433d93 | 3063 | #ifndef OLD_ARM_ABI |
8375c36b PB |
3064 | case R_ARM_ALU_PCREL7_0: |
3065 | case R_ARM_ALU_PCREL15_8: | |
3066 | case R_ARM_ALU_PCREL23_15: | |
3067 | { | |
3068 | bfd_vma insn; | |
3069 | bfd_vma relocation; | |
3070 | ||
3071 | insn = bfd_get_32 (input_bfd, hit_data); | |
4e7fd91e PB |
3072 | if (globals->use_rel) |
3073 | { | |
3074 | /* Extract the addend. */ | |
3075 | addend = (insn & 0xff) << ((insn & 0xf00) >> 7); | |
3076 | signed_addend = addend; | |
3077 | } | |
8375c36b PB |
3078 | relocation = value + signed_addend; |
3079 | ||
3080 | relocation -= (input_section->output_section->vma | |
3081 | + input_section->output_offset | |
3082 | + rel->r_offset); | |
3083 | insn = (insn & ~0xfff) | |
3084 | | ((howto->bitpos << 7) & 0xf00) | |
3085 | | ((relocation >> howto->bitpos) & 0xff); | |
3086 | bfd_put_32 (input_bfd, value, hit_data); | |
3087 | } | |
3088 | return bfd_reloc_ok; | |
1f433d93 | 3089 | #endif |
8375c36b | 3090 | |
252b5132 RH |
3091 | case R_ARM_GNU_VTINHERIT: |
3092 | case R_ARM_GNU_VTENTRY: | |
3093 | return bfd_reloc_ok; | |
3094 | ||
3095 | case R_ARM_COPY: | |
3096 | return bfd_reloc_notsupported; | |
3097 | ||
3098 | case R_ARM_GLOB_DAT: | |
3099 | return bfd_reloc_notsupported; | |
3100 | ||
3101 | case R_ARM_JUMP_SLOT: | |
3102 | return bfd_reloc_notsupported; | |
3103 | ||
3104 | case R_ARM_RELATIVE: | |
3105 | return bfd_reloc_notsupported; | |
3106 | ||
3107 | case R_ARM_GOTOFF: | |
3108 | /* Relocation is relative to the start of the | |
3109 | global offset table. */ | |
3110 | ||
3111 | BFD_ASSERT (sgot != NULL); | |
3112 | if (sgot == NULL) | |
3113 | return bfd_reloc_notsupported; | |
9a5aca8c | 3114 | |
cedb70c5 | 3115 | /* If we are addressing a Thumb function, we need to adjust the |
ee29b9fb RE |
3116 | address by one, so that attempts to call the function pointer will |
3117 | correctly interpret it as Thumb code. */ | |
3118 | if (sym_flags == STT_ARM_TFUNC) | |
3119 | value += 1; | |
3120 | ||
252b5132 RH |
3121 | /* Note that sgot->output_offset is not involved in this |
3122 | calculation. We always want the start of .got. If we | |
3123 | define _GLOBAL_OFFSET_TABLE in a different way, as is | |
3124 | permitted by the ABI, we might have to change this | |
9b485d32 | 3125 | calculation. */ |
252b5132 | 3126 | value -= sgot->output_section->vma; |
f21f3fe0 | 3127 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 AJ |
3128 | contents, rel->r_offset, value, |
3129 | (bfd_vma) 0); | |
252b5132 RH |
3130 | |
3131 | case R_ARM_GOTPC: | |
a7c10850 | 3132 | /* Use global offset table as symbol value. */ |
252b5132 | 3133 | BFD_ASSERT (sgot != NULL); |
f21f3fe0 | 3134 | |
252b5132 RH |
3135 | if (sgot == NULL) |
3136 | return bfd_reloc_notsupported; | |
3137 | ||
0945cdfd | 3138 | *unresolved_reloc_p = FALSE; |
252b5132 | 3139 | value = sgot->output_section->vma; |
f21f3fe0 | 3140 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 AJ |
3141 | contents, rel->r_offset, value, |
3142 | (bfd_vma) 0); | |
f21f3fe0 | 3143 | |
252b5132 | 3144 | case R_ARM_GOT32: |
eb043451 PB |
3145 | #ifndef OLD_ARM_ABI |
3146 | case R_ARM_GOT_PREL: | |
3147 | #endif | |
252b5132 | 3148 | /* Relocation is to the entry for this symbol in the |
9b485d32 | 3149 | global offset table. */ |
252b5132 RH |
3150 | if (sgot == NULL) |
3151 | return bfd_reloc_notsupported; | |
f21f3fe0 | 3152 | |
252b5132 RH |
3153 | if (h != NULL) |
3154 | { | |
3155 | bfd_vma off; | |
5e681ec4 | 3156 | bfd_boolean dyn; |
f21f3fe0 | 3157 | |
252b5132 RH |
3158 | off = h->got.offset; |
3159 | BFD_ASSERT (off != (bfd_vma) -1); | |
5e681ec4 | 3160 | dyn = globals->root.dynamic_sections_created; |
f21f3fe0 | 3161 | |
5e681ec4 | 3162 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
50d6c878 | 3163 | || (info->shared |
5e681ec4 PB |
3164 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
3165 | || (ELF_ST_VISIBILITY (h->other) | |
3166 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
3167 | { |
3168 | /* This is actually a static link, or it is a -Bsymbolic link | |
3169 | and the symbol is defined locally. We must initialize this | |
3170 | entry in the global offset table. Since the offset must | |
3171 | always be a multiple of 4, we use the least significant bit | |
3172 | to record whether we have initialized it already. | |
f21f3fe0 | 3173 | |
252b5132 | 3174 | When doing a dynamic link, we create a .rel.got relocation |
f21f3fe0 | 3175 | entry to initialize the value. This is done in the |
9b485d32 | 3176 | finish_dynamic_symbol routine. */ |
252b5132 RH |
3177 | if ((off & 1) != 0) |
3178 | off &= ~1; | |
3179 | else | |
3180 | { | |
ee29b9fb RE |
3181 | /* If we are addressing a Thumb function, we need to |
3182 | adjust the address by one, so that attempts to | |
3183 | call the function pointer will correctly | |
3184 | interpret it as Thumb code. */ | |
3185 | if (sym_flags == STT_ARM_TFUNC) | |
3186 | value |= 1; | |
3187 | ||
252b5132 RH |
3188 | bfd_put_32 (output_bfd, value, sgot->contents + off); |
3189 | h->got.offset |= 1; | |
3190 | } | |
3191 | } | |
0945cdfd DJ |
3192 | else |
3193 | *unresolved_reloc_p = FALSE; | |
f21f3fe0 | 3194 | |
252b5132 RH |
3195 | value = sgot->output_offset + off; |
3196 | } | |
3197 | else | |
3198 | { | |
3199 | bfd_vma off; | |
f21f3fe0 | 3200 | |
252b5132 RH |
3201 | BFD_ASSERT (local_got_offsets != NULL && |
3202 | local_got_offsets[r_symndx] != (bfd_vma) -1); | |
f21f3fe0 | 3203 | |
252b5132 | 3204 | off = local_got_offsets[r_symndx]; |
f21f3fe0 | 3205 | |
252b5132 RH |
3206 | /* The offset must always be a multiple of 4. We use the |
3207 | least significant bit to record whether we have already | |
9b485d32 | 3208 | generated the necessary reloc. */ |
252b5132 RH |
3209 | if ((off & 1) != 0) |
3210 | off &= ~1; | |
3211 | else | |
3212 | { | |
b7693d02 DJ |
3213 | /* If we are addressing a Thumb function, we need to |
3214 | adjust the address by one, so that attempts to | |
3215 | call the function pointer will correctly | |
3216 | interpret it as Thumb code. */ | |
3217 | if (sym_flags == STT_ARM_TFUNC) | |
3218 | value |= 1; | |
3219 | ||
252b5132 | 3220 | bfd_put_32 (output_bfd, value, sgot->contents + off); |
f21f3fe0 | 3221 | |
252b5132 RH |
3222 | if (info->shared) |
3223 | { | |
3224 | asection * srelgot; | |
947216bf AM |
3225 | Elf_Internal_Rela outrel; |
3226 | bfd_byte *loc; | |
f21f3fe0 | 3227 | |
252b5132 RH |
3228 | srelgot = bfd_get_section_by_name (dynobj, ".rel.got"); |
3229 | BFD_ASSERT (srelgot != NULL); | |
f21f3fe0 | 3230 | |
252b5132 | 3231 | outrel.r_offset = (sgot->output_section->vma |
f21f3fe0 | 3232 | + sgot->output_offset |
252b5132 RH |
3233 | + off); |
3234 | outrel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE); | |
947216bf AM |
3235 | loc = srelgot->contents; |
3236 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rel); | |
3237 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
252b5132 | 3238 | } |
f21f3fe0 | 3239 | |
252b5132 RH |
3240 | local_got_offsets[r_symndx] |= 1; |
3241 | } | |
f21f3fe0 | 3242 | |
252b5132 RH |
3243 | value = sgot->output_offset + off; |
3244 | } | |
eb043451 PB |
3245 | if (r_type != R_ARM_GOT32) |
3246 | value += sgot->output_section->vma; | |
9a5aca8c | 3247 | |
f21f3fe0 | 3248 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 AJ |
3249 | contents, rel->r_offset, value, |
3250 | (bfd_vma) 0); | |
f21f3fe0 | 3251 | |
ba93b8ac DJ |
3252 | case R_ARM_TLS_LDO32: |
3253 | value = value - dtpoff_base (info); | |
3254 | ||
3255 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3256 | contents, rel->r_offset, value, (bfd_vma) 0); | |
3257 | ||
3258 | case R_ARM_TLS_LDM32: | |
3259 | { | |
3260 | bfd_vma off; | |
3261 | ||
3262 | if (globals->sgot == NULL) | |
3263 | abort (); | |
3264 | ||
3265 | off = globals->tls_ldm_got.offset; | |
3266 | ||
3267 | if ((off & 1) != 0) | |
3268 | off &= ~1; | |
3269 | else | |
3270 | { | |
3271 | /* If we don't know the module number, create a relocation | |
3272 | for it. */ | |
3273 | if (info->shared) | |
3274 | { | |
3275 | Elf_Internal_Rela outrel; | |
3276 | bfd_byte *loc; | |
3277 | ||
3278 | if (globals->srelgot == NULL) | |
3279 | abort (); | |
3280 | ||
3281 | outrel.r_offset = (globals->sgot->output_section->vma | |
3282 | + globals->sgot->output_offset + off); | |
3283 | outrel.r_info = ELF32_R_INFO (0, R_ARM_TLS_DTPMOD32); | |
3284 | ||
3285 | bfd_put_32 (output_bfd, 0, globals->sgot->contents + off); | |
3286 | ||
3287 | loc = globals->srelgot->contents; | |
3288 | loc += globals->srelgot->reloc_count++ * sizeof (Elf32_External_Rel); | |
3289 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
3290 | } | |
3291 | else | |
3292 | bfd_put_32 (output_bfd, 1, globals->sgot->contents + off); | |
3293 | ||
3294 | globals->tls_ldm_got.offset |= 1; | |
3295 | } | |
3296 | ||
3297 | value = globals->sgot->output_section->vma + globals->sgot->output_offset + off | |
3298 | - (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
3299 | ||
3300 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3301 | contents, rel->r_offset, value, | |
3302 | (bfd_vma) 0); | |
3303 | } | |
3304 | ||
3305 | case R_ARM_TLS_GD32: | |
3306 | case R_ARM_TLS_IE32: | |
3307 | { | |
3308 | bfd_vma off; | |
3309 | int indx; | |
3310 | char tls_type; | |
3311 | ||
3312 | if (globals->sgot == NULL) | |
3313 | abort (); | |
3314 | ||
3315 | indx = 0; | |
3316 | if (h != NULL) | |
3317 | { | |
3318 | bfd_boolean dyn; | |
3319 | dyn = globals->root.dynamic_sections_created; | |
3320 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
3321 | && (!info->shared | |
3322 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
3323 | { | |
3324 | *unresolved_reloc_p = FALSE; | |
3325 | indx = h->dynindx; | |
3326 | } | |
3327 | off = h->got.offset; | |
3328 | tls_type = ((struct elf32_arm_link_hash_entry *) h)->tls_type; | |
3329 | } | |
3330 | else | |
3331 | { | |
3332 | if (local_got_offsets == NULL) | |
3333 | abort (); | |
3334 | off = local_got_offsets[r_symndx]; | |
3335 | tls_type = elf32_arm_local_got_tls_type (input_bfd)[r_symndx]; | |
3336 | } | |
3337 | ||
3338 | if (tls_type == GOT_UNKNOWN) | |
3339 | abort (); | |
3340 | ||
3341 | if ((off & 1) != 0) | |
3342 | off &= ~1; | |
3343 | else | |
3344 | { | |
3345 | bfd_boolean need_relocs = FALSE; | |
3346 | Elf_Internal_Rela outrel; | |
3347 | bfd_byte *loc = NULL; | |
3348 | int cur_off = off; | |
3349 | ||
3350 | /* The GOT entries have not been initialized yet. Do it | |
3351 | now, and emit any relocations. If both an IE GOT and a | |
3352 | GD GOT are necessary, we emit the GD first. */ | |
3353 | ||
3354 | if ((info->shared || indx != 0) | |
3355 | && (h == NULL | |
3356 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
3357 | || h->root.type != bfd_link_hash_undefweak)) | |
3358 | { | |
3359 | need_relocs = TRUE; | |
3360 | if (globals->srelgot == NULL) | |
3361 | abort (); | |
3362 | loc = globals->srelgot->contents; | |
3363 | loc += globals->srelgot->reloc_count * sizeof (Elf32_External_Rel); | |
3364 | } | |
3365 | ||
3366 | if (tls_type & GOT_TLS_GD) | |
3367 | { | |
3368 | if (need_relocs) | |
3369 | { | |
3370 | outrel.r_offset = (globals->sgot->output_section->vma | |
3371 | + globals->sgot->output_offset + cur_off); | |
3372 | outrel.r_info = ELF32_R_INFO (indx, R_ARM_TLS_DTPMOD32); | |
3373 | bfd_put_32 (output_bfd, 0, globals->sgot->contents + cur_off); | |
3374 | ||
3375 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
3376 | globals->srelgot->reloc_count++; | |
3377 | loc += sizeof (Elf32_External_Rel); | |
3378 | ||
3379 | if (indx == 0) | |
3380 | bfd_put_32 (output_bfd, value - dtpoff_base (info), | |
3381 | globals->sgot->contents + cur_off + 4); | |
3382 | else | |
3383 | { | |
3384 | bfd_put_32 (output_bfd, 0, | |
3385 | globals->sgot->contents + cur_off + 4); | |
3386 | ||
3387 | outrel.r_info = ELF32_R_INFO (indx, | |
3388 | R_ARM_TLS_DTPOFF32); | |
3389 | outrel.r_offset += 4; | |
3390 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
3391 | globals->srelgot->reloc_count++; | |
3392 | loc += sizeof (Elf32_External_Rel); | |
3393 | } | |
3394 | } | |
3395 | else | |
3396 | { | |
3397 | /* If we are not emitting relocations for a | |
3398 | general dynamic reference, then we must be in a | |
3399 | static link or an executable link with the | |
3400 | symbol binding locally. Mark it as belonging | |
3401 | to module 1, the executable. */ | |
3402 | bfd_put_32 (output_bfd, 1, | |
3403 | globals->sgot->contents + cur_off); | |
3404 | bfd_put_32 (output_bfd, value - dtpoff_base (info), | |
3405 | globals->sgot->contents + cur_off + 4); | |
3406 | } | |
3407 | ||
3408 | cur_off += 8; | |
3409 | } | |
3410 | ||
3411 | if (tls_type & GOT_TLS_IE) | |
3412 | { | |
3413 | if (need_relocs) | |
3414 | { | |
3415 | outrel.r_offset = (globals->sgot->output_section->vma | |
3416 | + globals->sgot->output_offset | |
3417 | + cur_off); | |
3418 | outrel.r_info = ELF32_R_INFO (indx, R_ARM_TLS_TPOFF32); | |
3419 | ||
3420 | if (indx == 0) | |
3421 | bfd_put_32 (output_bfd, value - dtpoff_base (info), | |
3422 | globals->sgot->contents + cur_off); | |
3423 | else | |
3424 | bfd_put_32 (output_bfd, 0, | |
3425 | globals->sgot->contents + cur_off); | |
3426 | ||
3427 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
3428 | globals->srelgot->reloc_count++; | |
3429 | loc += sizeof (Elf32_External_Rel); | |
3430 | } | |
3431 | else | |
3432 | bfd_put_32 (output_bfd, tpoff (info, value), | |
3433 | globals->sgot->contents + cur_off); | |
3434 | cur_off += 4; | |
3435 | } | |
3436 | ||
3437 | if (h != NULL) | |
3438 | h->got.offset |= 1; | |
3439 | else | |
3440 | local_got_offsets[r_symndx] |= 1; | |
3441 | } | |
3442 | ||
3443 | if ((tls_type & GOT_TLS_GD) && r_type != R_ARM_TLS_GD32) | |
3444 | off += 8; | |
3445 | value = globals->sgot->output_section->vma + globals->sgot->output_offset + off | |
3446 | - (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
3447 | ||
3448 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3449 | contents, rel->r_offset, value, | |
3450 | (bfd_vma) 0); | |
3451 | } | |
3452 | ||
3453 | case R_ARM_TLS_LE32: | |
3454 | if (info->shared) | |
3455 | { | |
3456 | (*_bfd_error_handler) | |
3457 | (_("%B(%A+0x%lx): R_ARM_TLS_LE32 relocation not permitted in shared object"), | |
3458 | input_bfd, input_section, | |
3459 | (long) rel->r_offset, howto->name); | |
3460 | return FALSE; | |
3461 | } | |
3462 | else | |
3463 | value = tpoff (info, value); | |
3464 | ||
3465 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3466 | contents, rel->r_offset, value, (bfd_vma) 0); | |
3467 | ||
252b5132 RH |
3468 | case R_ARM_SBREL32: |
3469 | return bfd_reloc_notsupported; | |
3470 | ||
3471 | case R_ARM_AMP_VCALL9: | |
3472 | return bfd_reloc_notsupported; | |
3473 | ||
3474 | case R_ARM_RSBREL32: | |
3475 | return bfd_reloc_notsupported; | |
3476 | ||
3477 | case R_ARM_THM_RPC22: | |
3478 | return bfd_reloc_notsupported; | |
3479 | ||
3480 | case R_ARM_RREL32: | |
3481 | return bfd_reloc_notsupported; | |
3482 | ||
3483 | case R_ARM_RABS32: | |
3484 | return bfd_reloc_notsupported; | |
3485 | ||
3486 | case R_ARM_RPC24: | |
3487 | return bfd_reloc_notsupported; | |
3488 | ||
3489 | case R_ARM_RBASE: | |
3490 | return bfd_reloc_notsupported; | |
3491 | ||
319850b4 JB |
3492 | case R_ARM_V4BX: |
3493 | if (globals->fix_v4bx) | |
3494 | { | |
3495 | bfd_vma insn = bfd_get_32 (input_bfd, hit_data); | |
3496 | ||
3497 | /* Ensure that we have a BX instruction. */ | |
3498 | BFD_ASSERT ((insn & 0x0ffffff0) == 0x012fff10); | |
3499 | ||
3500 | /* Preserve Rm (lowest four bits) and the condition code | |
3501 | (highest four bits). Other bits encode MOV PC,Rm. */ | |
3502 | insn = (insn & 0xf000000f) | 0x01a0f000; | |
3503 | ||
3504 | bfd_put_32 (input_bfd, insn, hit_data); | |
3505 | } | |
3506 | return bfd_reloc_ok; | |
3507 | ||
252b5132 RH |
3508 | default: |
3509 | return bfd_reloc_notsupported; | |
3510 | } | |
3511 | } | |
3512 | ||
98c1d4aa NC |
3513 | /* Add INCREMENT to the reloc (of type HOWTO) at ADDRESS. */ |
3514 | static void | |
57e8b36a NC |
3515 | arm_add_to_rel (bfd * abfd, |
3516 | bfd_byte * address, | |
3517 | reloc_howto_type * howto, | |
3518 | bfd_signed_vma increment) | |
98c1d4aa | 3519 | { |
98c1d4aa NC |
3520 | bfd_signed_vma addend; |
3521 | ||
9a5aca8c | 3522 | if (howto->type == R_ARM_THM_PC22) |
98c1d4aa | 3523 | { |
9a5aca8c AM |
3524 | int upper_insn, lower_insn; |
3525 | int upper, lower; | |
98c1d4aa | 3526 | |
9a5aca8c AM |
3527 | upper_insn = bfd_get_16 (abfd, address); |
3528 | lower_insn = bfd_get_16 (abfd, address + 2); | |
3529 | upper = upper_insn & 0x7ff; | |
3530 | lower = lower_insn & 0x7ff; | |
3531 | ||
3532 | addend = (upper << 12) | (lower << 1); | |
ddda4409 | 3533 | addend += increment; |
9a5aca8c | 3534 | addend >>= 1; |
98c1d4aa | 3535 | |
9a5aca8c AM |
3536 | upper_insn = (upper_insn & 0xf800) | ((addend >> 11) & 0x7ff); |
3537 | lower_insn = (lower_insn & 0xf800) | (addend & 0x7ff); | |
3538 | ||
dc810e39 AM |
3539 | bfd_put_16 (abfd, (bfd_vma) upper_insn, address); |
3540 | bfd_put_16 (abfd, (bfd_vma) lower_insn, address + 2); | |
9a5aca8c AM |
3541 | } |
3542 | else | |
3543 | { | |
3544 | bfd_vma contents; | |
3545 | ||
3546 | contents = bfd_get_32 (abfd, address); | |
3547 | ||
3548 | /* Get the (signed) value from the instruction. */ | |
3549 | addend = contents & howto->src_mask; | |
3550 | if (addend & ((howto->src_mask + 1) >> 1)) | |
3551 | { | |
3552 | bfd_signed_vma mask; | |
3553 | ||
3554 | mask = -1; | |
3555 | mask &= ~ howto->src_mask; | |
3556 | addend |= mask; | |
3557 | } | |
3558 | ||
3559 | /* Add in the increment, (which is a byte value). */ | |
3560 | switch (howto->type) | |
3561 | { | |
3562 | default: | |
3563 | addend += increment; | |
3564 | break; | |
3565 | ||
3566 | case R_ARM_PC24: | |
c6596c5e | 3567 | case R_ARM_PLT32: |
5b5bb741 PB |
3568 | #ifndef OLD_ARM_ABI |
3569 | case R_ARM_CALL: | |
3570 | case R_ARM_JUMP24: | |
3571 | #endif | |
9a5aca8c | 3572 | addend <<= howto->size; |
dc810e39 | 3573 | addend += increment; |
9a5aca8c AM |
3574 | |
3575 | /* Should we check for overflow here ? */ | |
3576 | ||
3577 | /* Drop any undesired bits. */ | |
3578 | addend >>= howto->rightshift; | |
3579 | break; | |
3580 | } | |
3581 | ||
3582 | contents = (contents & ~ howto->dst_mask) | (addend & howto->dst_mask); | |
3583 | ||
3584 | bfd_put_32 (abfd, contents, address); | |
ddda4409 | 3585 | } |
98c1d4aa | 3586 | } |
252b5132 | 3587 | |
ba93b8ac DJ |
3588 | #define IS_ARM_TLS_RELOC(R_TYPE) \ |
3589 | ((R_TYPE) == R_ARM_TLS_GD32 \ | |
3590 | || (R_TYPE) == R_ARM_TLS_LDO32 \ | |
3591 | || (R_TYPE) == R_ARM_TLS_LDM32 \ | |
3592 | || (R_TYPE) == R_ARM_TLS_DTPOFF32 \ | |
3593 | || (R_TYPE) == R_ARM_TLS_DTPMOD32 \ | |
3594 | || (R_TYPE) == R_ARM_TLS_TPOFF32 \ | |
3595 | || (R_TYPE) == R_ARM_TLS_LE32 \ | |
3596 | || (R_TYPE) == R_ARM_TLS_IE32) | |
3597 | ||
252b5132 | 3598 | /* Relocate an ARM ELF section. */ |
b34976b6 | 3599 | static bfd_boolean |
57e8b36a NC |
3600 | elf32_arm_relocate_section (bfd * output_bfd, |
3601 | struct bfd_link_info * info, | |
3602 | bfd * input_bfd, | |
3603 | asection * input_section, | |
3604 | bfd_byte * contents, | |
3605 | Elf_Internal_Rela * relocs, | |
3606 | Elf_Internal_Sym * local_syms, | |
3607 | asection ** local_sections) | |
252b5132 | 3608 | { |
b34976b6 AM |
3609 | Elf_Internal_Shdr *symtab_hdr; |
3610 | struct elf_link_hash_entry **sym_hashes; | |
3611 | Elf_Internal_Rela *rel; | |
3612 | Elf_Internal_Rela *relend; | |
3613 | const char *name; | |
b32d3aa2 | 3614 | struct elf32_arm_link_hash_table * globals; |
252b5132 | 3615 | |
4e7fd91e PB |
3616 | globals = elf32_arm_hash_table (info); |
3617 | if (info->relocatable && !globals->use_rel) | |
b34976b6 | 3618 | return TRUE; |
b491616a | 3619 | |
252b5132 RH |
3620 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
3621 | sym_hashes = elf_sym_hashes (input_bfd); | |
3622 | ||
3623 | rel = relocs; | |
3624 | relend = relocs + input_section->reloc_count; | |
3625 | for (; rel < relend; rel++) | |
3626 | { | |
ba96a88f NC |
3627 | int r_type; |
3628 | reloc_howto_type * howto; | |
3629 | unsigned long r_symndx; | |
3630 | Elf_Internal_Sym * sym; | |
3631 | asection * sec; | |
252b5132 | 3632 | struct elf_link_hash_entry * h; |
ba96a88f NC |
3633 | bfd_vma relocation; |
3634 | bfd_reloc_status_type r; | |
3635 | arelent bfd_reloc; | |
ba93b8ac | 3636 | char sym_type; |
0945cdfd | 3637 | bfd_boolean unresolved_reloc = FALSE; |
f21f3fe0 | 3638 | |
252b5132 | 3639 | r_symndx = ELF32_R_SYM (rel->r_info); |
ba96a88f | 3640 | r_type = ELF32_R_TYPE (rel->r_info); |
b32d3aa2 | 3641 | r_type = arm_real_reloc_type (globals, r_type); |
252b5132 | 3642 | |
ba96a88f NC |
3643 | if ( r_type == R_ARM_GNU_VTENTRY |
3644 | || r_type == R_ARM_GNU_VTINHERIT) | |
252b5132 RH |
3645 | continue; |
3646 | ||
b32d3aa2 | 3647 | bfd_reloc.howto = elf32_arm_howto_from_type (r_type); |
ba96a88f | 3648 | howto = bfd_reloc.howto; |
252b5132 | 3649 | |
4e7fd91e | 3650 | if (info->relocatable && globals->use_rel) |
252b5132 | 3651 | { |
1049f94e | 3652 | /* This is a relocatable link. We don't have to change |
252b5132 RH |
3653 | anything, unless the reloc is against a section symbol, |
3654 | in which case we have to adjust according to where the | |
3655 | section symbol winds up in the output section. */ | |
3656 | if (r_symndx < symtab_hdr->sh_info) | |
3657 | { | |
3658 | sym = local_syms + r_symndx; | |
3659 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3660 | { | |
3661 | sec = local_sections[r_symndx]; | |
98c1d4aa | 3662 | arm_add_to_rel (input_bfd, contents + rel->r_offset, |
dc810e39 AM |
3663 | howto, |
3664 | (bfd_signed_vma) (sec->output_offset | |
3665 | + sym->st_value)); | |
252b5132 RH |
3666 | } |
3667 | } | |
3668 | ||
3669 | continue; | |
3670 | } | |
3671 | ||
3672 | /* This is a final link. */ | |
3673 | h = NULL; | |
3674 | sym = NULL; | |
3675 | sec = NULL; | |
9b485d32 | 3676 | |
252b5132 RH |
3677 | if (r_symndx < symtab_hdr->sh_info) |
3678 | { | |
3679 | sym = local_syms + r_symndx; | |
ba93b8ac | 3680 | sym_type = ELF32_ST_TYPE (sym->st_info); |
252b5132 | 3681 | sec = local_sections[r_symndx]; |
4e7fd91e | 3682 | if (globals->use_rel) |
f8df10f4 | 3683 | { |
4e7fd91e PB |
3684 | relocation = (sec->output_section->vma |
3685 | + sec->output_offset | |
3686 | + sym->st_value); | |
3687 | if ((sec->flags & SEC_MERGE) | |
3688 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
f8df10f4 | 3689 | { |
4e7fd91e PB |
3690 | asection *msec; |
3691 | bfd_vma addend, value; | |
3692 | ||
3693 | if (howto->rightshift) | |
3694 | { | |
3695 | (*_bfd_error_handler) | |
3696 | (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"), | |
3697 | input_bfd, input_section, | |
3698 | (long) rel->r_offset, howto->name); | |
3699 | return FALSE; | |
3700 | } | |
f8df10f4 | 3701 | |
4e7fd91e | 3702 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); |
f8df10f4 | 3703 | |
4e7fd91e PB |
3704 | /* Get the (signed) value from the instruction. */ |
3705 | addend = value & howto->src_mask; | |
3706 | if (addend & ((howto->src_mask + 1) >> 1)) | |
3707 | { | |
3708 | bfd_signed_vma mask; | |
f8df10f4 | 3709 | |
4e7fd91e PB |
3710 | mask = -1; |
3711 | mask &= ~ howto->src_mask; | |
3712 | addend |= mask; | |
3713 | } | |
3714 | msec = sec; | |
3715 | addend = | |
3716 | _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) | |
3717 | - relocation; | |
3718 | addend += msec->output_section->vma + msec->output_offset; | |
3719 | value = (value & ~ howto->dst_mask) | (addend & howto->dst_mask); | |
3720 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
f8df10f4 | 3721 | } |
f8df10f4 | 3722 | } |
4e7fd91e PB |
3723 | else |
3724 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
252b5132 RH |
3725 | } |
3726 | else | |
3727 | { | |
560e09e9 | 3728 | bfd_boolean warned; |
560e09e9 | 3729 | |
b2a8e766 AM |
3730 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
3731 | r_symndx, symtab_hdr, sym_hashes, | |
3732 | h, sec, relocation, | |
3733 | unresolved_reloc, warned); | |
ba93b8ac DJ |
3734 | |
3735 | sym_type = h->type; | |
252b5132 RH |
3736 | } |
3737 | ||
3738 | if (h != NULL) | |
3739 | name = h->root.root.string; | |
3740 | else | |
3741 | { | |
3742 | name = (bfd_elf_string_from_elf_section | |
3743 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
3744 | if (name == NULL || *name == '\0') | |
3745 | name = bfd_section_name (input_bfd, sec); | |
3746 | } | |
f21f3fe0 | 3747 | |
ba93b8ac DJ |
3748 | if (r_symndx != 0 |
3749 | && r_type != R_ARM_NONE | |
3750 | && (h == NULL | |
3751 | || h->root.type == bfd_link_hash_defined | |
3752 | || h->root.type == bfd_link_hash_defweak) | |
3753 | && IS_ARM_TLS_RELOC (r_type) != (sym_type == STT_TLS)) | |
3754 | { | |
3755 | (*_bfd_error_handler) | |
3756 | ((sym_type == STT_TLS | |
3757 | ? _("%B(%A+0x%lx): %s used with TLS symbol %s") | |
3758 | : _("%B(%A+0x%lx): %s used with non-TLS symbol %s")), | |
3759 | input_bfd, | |
3760 | input_section, | |
3761 | (long) rel->r_offset, | |
3762 | howto->name, | |
3763 | name); | |
3764 | } | |
3765 | ||
252b5132 RH |
3766 | r = elf32_arm_final_link_relocate (howto, input_bfd, output_bfd, |
3767 | input_section, contents, rel, | |
3768 | relocation, info, sec, name, | |
3769 | (h ? ELF_ST_TYPE (h->type) : | |
0945cdfd DJ |
3770 | ELF_ST_TYPE (sym->st_info)), h, |
3771 | &unresolved_reloc); | |
3772 | ||
3773 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections | |
3774 | because such sections are not SEC_ALLOC and thus ld.so will | |
3775 | not process them. */ | |
3776 | if (unresolved_reloc | |
3777 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
3778 | && h->def_dynamic)) | |
3779 | { | |
3780 | (*_bfd_error_handler) | |
3781 | (_("%B(%A+0x%lx): warning: unresolvable relocation %d against symbol `%s'"), | |
3782 | input_bfd, input_section, (long) rel->r_offset, | |
3783 | r_type, h->root.root.string); | |
3784 | return FALSE; | |
3785 | } | |
252b5132 RH |
3786 | |
3787 | if (r != bfd_reloc_ok) | |
3788 | { | |
3789 | const char * msg = (const char *) 0; | |
3790 | ||
3791 | switch (r) | |
3792 | { | |
3793 | case bfd_reloc_overflow: | |
cf919dfd PB |
3794 | /* If the overflowing reloc was to an undefined symbol, |
3795 | we have already printed one error message and there | |
3796 | is no point complaining again. */ | |
3797 | if ((! h || | |
3798 | h->root.type != bfd_link_hash_undefined) | |
3799 | && (!((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
3800 | (info, (h ? &h->root : NULL), name, howto->name, |
3801 | (bfd_vma) 0, input_bfd, input_section, | |
3802 | rel->r_offset)))) | |
b34976b6 | 3803 | return FALSE; |
252b5132 RH |
3804 | break; |
3805 | ||
3806 | case bfd_reloc_undefined: | |
3807 | if (!((*info->callbacks->undefined_symbol) | |
3808 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
3809 | rel->r_offset, TRUE))) |
3810 | return FALSE; | |
252b5132 RH |
3811 | break; |
3812 | ||
3813 | case bfd_reloc_outofrange: | |
9b485d32 | 3814 | msg = _("internal error: out of range error"); |
252b5132 RH |
3815 | goto common_error; |
3816 | ||
3817 | case bfd_reloc_notsupported: | |
9b485d32 | 3818 | msg = _("internal error: unsupported relocation error"); |
252b5132 RH |
3819 | goto common_error; |
3820 | ||
3821 | case bfd_reloc_dangerous: | |
9b485d32 | 3822 | msg = _("internal error: dangerous error"); |
252b5132 RH |
3823 | goto common_error; |
3824 | ||
3825 | default: | |
9b485d32 | 3826 | msg = _("internal error: unknown error"); |
252b5132 RH |
3827 | /* fall through */ |
3828 | ||
3829 | common_error: | |
3830 | if (!((*info->callbacks->warning) | |
3831 | (info, msg, name, input_bfd, input_section, | |
3832 | rel->r_offset))) | |
b34976b6 | 3833 | return FALSE; |
252b5132 RH |
3834 | break; |
3835 | } | |
3836 | } | |
3837 | } | |
3838 | ||
b34976b6 | 3839 | return TRUE; |
252b5132 RH |
3840 | } |
3841 | ||
c178919b NC |
3842 | /* Set the right machine number. */ |
3843 | ||
3844 | static bfd_boolean | |
57e8b36a | 3845 | elf32_arm_object_p (bfd *abfd) |
c178919b | 3846 | { |
5a6c6817 | 3847 | unsigned int mach; |
57e8b36a | 3848 | |
5a6c6817 | 3849 | mach = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION); |
c178919b | 3850 | |
5a6c6817 NC |
3851 | if (mach != bfd_mach_arm_unknown) |
3852 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach); | |
3853 | ||
3854 | else if (elf_elfheader (abfd)->e_flags & EF_ARM_MAVERICK_FLOAT) | |
3855 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_ep9312); | |
e16bb312 | 3856 | |
e16bb312 | 3857 | else |
5a6c6817 | 3858 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach); |
c178919b NC |
3859 | |
3860 | return TRUE; | |
3861 | } | |
3862 | ||
fc830a83 | 3863 | /* Function to keep ARM specific flags in the ELF header. */ |
3c9458e9 | 3864 | |
b34976b6 | 3865 | static bfd_boolean |
57e8b36a | 3866 | elf32_arm_set_private_flags (bfd *abfd, flagword flags) |
252b5132 RH |
3867 | { |
3868 | if (elf_flags_init (abfd) | |
3869 | && elf_elfheader (abfd)->e_flags != flags) | |
3870 | { | |
fc830a83 NC |
3871 | if (EF_ARM_EABI_VERSION (flags) == EF_ARM_EABI_UNKNOWN) |
3872 | { | |
fd2ec330 | 3873 | if (flags & EF_ARM_INTERWORK) |
d003868e AM |
3874 | (*_bfd_error_handler) |
3875 | (_("Warning: Not setting interworking flag of %B since it has already been specified as non-interworking"), | |
3876 | abfd); | |
fc830a83 | 3877 | else |
d003868e AM |
3878 | _bfd_error_handler |
3879 | (_("Warning: Clearing the interworking flag of %B due to outside request"), | |
3880 | abfd); | |
fc830a83 | 3881 | } |
252b5132 RH |
3882 | } |
3883 | else | |
3884 | { | |
3885 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 | 3886 | elf_flags_init (abfd) = TRUE; |
252b5132 RH |
3887 | } |
3888 | ||
b34976b6 | 3889 | return TRUE; |
252b5132 RH |
3890 | } |
3891 | ||
fc830a83 | 3892 | /* Copy backend specific data from one object module to another. */ |
9b485d32 | 3893 | |
b34976b6 | 3894 | static bfd_boolean |
57e8b36a | 3895 | elf32_arm_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 RH |
3896 | { |
3897 | flagword in_flags; | |
3898 | flagword out_flags; | |
3899 | ||
fc830a83 | 3900 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
252b5132 | 3901 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 3902 | return TRUE; |
252b5132 | 3903 | |
fc830a83 | 3904 | in_flags = elf_elfheader (ibfd)->e_flags; |
252b5132 RH |
3905 | out_flags = elf_elfheader (obfd)->e_flags; |
3906 | ||
fc830a83 NC |
3907 | if (elf_flags_init (obfd) |
3908 | && EF_ARM_EABI_VERSION (out_flags) == EF_ARM_EABI_UNKNOWN | |
3909 | && in_flags != out_flags) | |
252b5132 | 3910 | { |
252b5132 | 3911 | /* Cannot mix APCS26 and APCS32 code. */ |
fd2ec330 | 3912 | if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26)) |
b34976b6 | 3913 | return FALSE; |
252b5132 RH |
3914 | |
3915 | /* Cannot mix float APCS and non-float APCS code. */ | |
fd2ec330 | 3916 | if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT)) |
b34976b6 | 3917 | return FALSE; |
252b5132 RH |
3918 | |
3919 | /* If the src and dest have different interworking flags | |
3920 | then turn off the interworking bit. */ | |
fd2ec330 | 3921 | if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK)) |
252b5132 | 3922 | { |
fd2ec330 | 3923 | if (out_flags & EF_ARM_INTERWORK) |
d003868e AM |
3924 | _bfd_error_handler |
3925 | (_("Warning: Clearing the interworking flag of %B because non-interworking code in %B has been linked with it"), | |
3926 | obfd, ibfd); | |
252b5132 | 3927 | |
fd2ec330 | 3928 | in_flags &= ~EF_ARM_INTERWORK; |
252b5132 | 3929 | } |
1006ba19 PB |
3930 | |
3931 | /* Likewise for PIC, though don't warn for this case. */ | |
fd2ec330 PB |
3932 | if ((in_flags & EF_ARM_PIC) != (out_flags & EF_ARM_PIC)) |
3933 | in_flags &= ~EF_ARM_PIC; | |
252b5132 RH |
3934 | } |
3935 | ||
3936 | elf_elfheader (obfd)->e_flags = in_flags; | |
b34976b6 | 3937 | elf_flags_init (obfd) = TRUE; |
252b5132 | 3938 | |
94a3258f PB |
3939 | /* Also copy the EI_OSABI field. */ |
3940 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
3941 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
3942 | ||
b34976b6 | 3943 | return TRUE; |
252b5132 RH |
3944 | } |
3945 | ||
3946 | /* Merge backend specific data from an object file to the output | |
3947 | object file when linking. */ | |
9b485d32 | 3948 | |
b34976b6 | 3949 | static bfd_boolean |
57e8b36a | 3950 | elf32_arm_merge_private_bfd_data (bfd * ibfd, bfd * obfd) |
252b5132 RH |
3951 | { |
3952 | flagword out_flags; | |
3953 | flagword in_flags; | |
b34976b6 | 3954 | bfd_boolean flags_compatible = TRUE; |
cf919dfd | 3955 | asection *sec; |
252b5132 | 3956 | |
9b485d32 | 3957 | /* Check if we have the same endianess. */ |
82e51918 | 3958 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
b34976b6 | 3959 | return FALSE; |
1fe494a5 | 3960 | |
252b5132 RH |
3961 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
3962 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 3963 | return TRUE; |
252b5132 | 3964 | |
252b5132 RH |
3965 | /* The input BFD must have had its flags initialised. */ |
3966 | /* The following seems bogus to me -- The flags are initialized in | |
3967 | the assembler but I don't think an elf_flags_init field is | |
9b485d32 | 3968 | written into the object. */ |
252b5132 RH |
3969 | /* BFD_ASSERT (elf_flags_init (ibfd)); */ |
3970 | ||
3971 | in_flags = elf_elfheader (ibfd)->e_flags; | |
3972 | out_flags = elf_elfheader (obfd)->e_flags; | |
3973 | ||
3974 | if (!elf_flags_init (obfd)) | |
3975 | { | |
fe077fa6 NC |
3976 | /* If the input is the default architecture and had the default |
3977 | flags then do not bother setting the flags for the output | |
3978 | architecture, instead allow future merges to do this. If no | |
3979 | future merges ever set these flags then they will retain their | |
3980 | uninitialised values, which surprise surprise, correspond | |
252b5132 | 3981 | to the default values. */ |
fe077fa6 NC |
3982 | if (bfd_get_arch_info (ibfd)->the_default |
3983 | && elf_elfheader (ibfd)->e_flags == 0) | |
b34976b6 | 3984 | return TRUE; |
252b5132 | 3985 | |
b34976b6 | 3986 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
3987 | elf_elfheader (obfd)->e_flags = in_flags; |
3988 | ||
3989 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
3990 | && bfd_get_arch_info (obfd)->the_default) | |
3991 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); | |
3992 | ||
b34976b6 | 3993 | return TRUE; |
252b5132 RH |
3994 | } |
3995 | ||
5a6c6817 NC |
3996 | /* Determine what should happen if the input ARM architecture |
3997 | does not match the output ARM architecture. */ | |
3998 | if (! bfd_arm_merge_machines (ibfd, obfd)) | |
3999 | return FALSE; | |
e16bb312 | 4000 | |
1006ba19 | 4001 | /* Identical flags must be compatible. */ |
252b5132 | 4002 | if (in_flags == out_flags) |
b34976b6 | 4003 | return TRUE; |
252b5132 | 4004 | |
35a0f415 DJ |
4005 | /* Check to see if the input BFD actually contains any sections. If |
4006 | not, its flags may not have been initialised either, but it | |
4007 | cannot actually cause any incompatibility. Do not short-circuit | |
4008 | dynamic objects; their section list may be emptied by | |
d1f161ea | 4009 | elf_link_add_object_symbols. |
35a0f415 | 4010 | |
d1f161ea NC |
4011 | Also check to see if there are no code sections in the input. |
4012 | In this case there is no need to check for code specific flags. | |
4013 | XXX - do we need to worry about floating-point format compatability | |
4014 | in data sections ? */ | |
35a0f415 | 4015 | if (!(ibfd->flags & DYNAMIC)) |
cf919dfd | 4016 | { |
35a0f415 | 4017 | bfd_boolean null_input_bfd = TRUE; |
d1f161ea | 4018 | bfd_boolean only_data_sections = TRUE; |
35a0f415 DJ |
4019 | |
4020 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
cf919dfd | 4021 | { |
35a0f415 DJ |
4022 | /* Ignore synthetic glue sections. */ |
4023 | if (strcmp (sec->name, ".glue_7") | |
4024 | && strcmp (sec->name, ".glue_7t")) | |
4025 | { | |
d1f161ea NC |
4026 | if ((bfd_get_section_flags (ibfd, sec) |
4027 | & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
4028 | == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
4029 | only_data_sections = FALSE; | |
4030 | ||
35a0f415 DJ |
4031 | null_input_bfd = FALSE; |
4032 | break; | |
4033 | } | |
cf919dfd | 4034 | } |
d1f161ea NC |
4035 | |
4036 | if (null_input_bfd || only_data_sections) | |
35a0f415 | 4037 | return TRUE; |
cf919dfd | 4038 | } |
cf919dfd | 4039 | |
252b5132 | 4040 | /* Complain about various flag mismatches. */ |
fc830a83 NC |
4041 | if (EF_ARM_EABI_VERSION (in_flags) != EF_ARM_EABI_VERSION (out_flags)) |
4042 | { | |
d003868e | 4043 | _bfd_error_handler |
3656d5e3 | 4044 | (_("ERROR: Source object %B has EABI version %d, but target %B has EABI version %d"), |
d003868e AM |
4045 | ibfd, obfd, |
4046 | (in_flags & EF_ARM_EABIMASK) >> 24, | |
4047 | (out_flags & EF_ARM_EABIMASK) >> 24); | |
b34976b6 | 4048 | return FALSE; |
fc830a83 | 4049 | } |
252b5132 | 4050 | |
1006ba19 PB |
4051 | /* Not sure what needs to be checked for EABI versions >= 1. */ |
4052 | if (EF_ARM_EABI_VERSION (in_flags) == EF_ARM_EABI_UNKNOWN) | |
4053 | { | |
fd2ec330 | 4054 | if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26)) |
1006ba19 | 4055 | { |
d003868e AM |
4056 | _bfd_error_handler |
4057 | (_("ERROR: %B is compiled for APCS-%d, whereas target %B uses APCS-%d"), | |
4058 | ibfd, obfd, | |
4059 | in_flags & EF_ARM_APCS_26 ? 26 : 32, | |
4060 | out_flags & EF_ARM_APCS_26 ? 26 : 32); | |
b34976b6 | 4061 | flags_compatible = FALSE; |
1006ba19 | 4062 | } |
252b5132 | 4063 | |
fd2ec330 | 4064 | if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT)) |
1006ba19 | 4065 | { |
5eefb65f | 4066 | if (in_flags & EF_ARM_APCS_FLOAT) |
d003868e AM |
4067 | _bfd_error_handler |
4068 | (_("ERROR: %B passes floats in float registers, whereas %B passes them in integer registers"), | |
4069 | ibfd, obfd); | |
5eefb65f | 4070 | else |
d003868e AM |
4071 | _bfd_error_handler |
4072 | (_("ERROR: %B passes floats in integer registers, whereas %B passes them in float registers"), | |
4073 | ibfd, obfd); | |
63b0f745 | 4074 | |
b34976b6 | 4075 | flags_compatible = FALSE; |
1006ba19 | 4076 | } |
252b5132 | 4077 | |
96a846ea | 4078 | if ((in_flags & EF_ARM_VFP_FLOAT) != (out_flags & EF_ARM_VFP_FLOAT)) |
1006ba19 | 4079 | { |
96a846ea | 4080 | if (in_flags & EF_ARM_VFP_FLOAT) |
d003868e AM |
4081 | _bfd_error_handler |
4082 | (_("ERROR: %B uses VFP instructions, whereas %B does not"), | |
4083 | ibfd, obfd); | |
5eefb65f | 4084 | else |
d003868e AM |
4085 | _bfd_error_handler |
4086 | (_("ERROR: %B uses FPA instructions, whereas %B does not"), | |
4087 | ibfd, obfd); | |
fde78edd NC |
4088 | |
4089 | flags_compatible = FALSE; | |
4090 | } | |
4091 | ||
4092 | if ((in_flags & EF_ARM_MAVERICK_FLOAT) != (out_flags & EF_ARM_MAVERICK_FLOAT)) | |
4093 | { | |
4094 | if (in_flags & EF_ARM_MAVERICK_FLOAT) | |
d003868e AM |
4095 | _bfd_error_handler |
4096 | (_("ERROR: %B uses Maverick instructions, whereas %B does not"), | |
4097 | ibfd, obfd); | |
fde78edd | 4098 | else |
d003868e AM |
4099 | _bfd_error_handler |
4100 | (_("ERROR: %B does not use Maverick instructions, whereas %B does"), | |
4101 | ibfd, obfd); | |
63b0f745 | 4102 | |
b34976b6 | 4103 | flags_compatible = FALSE; |
1006ba19 | 4104 | } |
96a846ea RE |
4105 | |
4106 | #ifdef EF_ARM_SOFT_FLOAT | |
4107 | if ((in_flags & EF_ARM_SOFT_FLOAT) != (out_flags & EF_ARM_SOFT_FLOAT)) | |
4108 | { | |
4109 | /* We can allow interworking between code that is VFP format | |
4110 | layout, and uses either soft float or integer regs for | |
4111 | passing floating point arguments and results. We already | |
4112 | know that the APCS_FLOAT flags match; similarly for VFP | |
4113 | flags. */ | |
4114 | if ((in_flags & EF_ARM_APCS_FLOAT) != 0 | |
4115 | || (in_flags & EF_ARM_VFP_FLOAT) == 0) | |
4116 | { | |
4117 | if (in_flags & EF_ARM_SOFT_FLOAT) | |
d003868e AM |
4118 | _bfd_error_handler |
4119 | (_("ERROR: %B uses software FP, whereas %B uses hardware FP"), | |
4120 | ibfd, obfd); | |
96a846ea | 4121 | else |
d003868e AM |
4122 | _bfd_error_handler |
4123 | (_("ERROR: %B uses hardware FP, whereas %B uses software FP"), | |
4124 | ibfd, obfd); | |
96a846ea | 4125 | |
b34976b6 | 4126 | flags_compatible = FALSE; |
96a846ea RE |
4127 | } |
4128 | } | |
ee43f35e | 4129 | #endif |
252b5132 | 4130 | |
1006ba19 | 4131 | /* Interworking mismatch is only a warning. */ |
fd2ec330 | 4132 | if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK)) |
8f615d07 | 4133 | { |
e3c8793a NC |
4134 | if (in_flags & EF_ARM_INTERWORK) |
4135 | { | |
d003868e AM |
4136 | _bfd_error_handler |
4137 | (_("Warning: %B supports interworking, whereas %B does not"), | |
4138 | ibfd, obfd); | |
e3c8793a NC |
4139 | } |
4140 | else | |
4141 | { | |
d003868e AM |
4142 | _bfd_error_handler |
4143 | (_("Warning: %B does not support interworking, whereas %B does"), | |
4144 | ibfd, obfd); | |
e3c8793a | 4145 | } |
8f615d07 | 4146 | } |
252b5132 | 4147 | } |
63b0f745 | 4148 | |
1006ba19 | 4149 | return flags_compatible; |
252b5132 RH |
4150 | } |
4151 | ||
9b485d32 NC |
4152 | /* Display the flags field. */ |
4153 | ||
b34976b6 | 4154 | static bfd_boolean |
57e8b36a | 4155 | elf32_arm_print_private_bfd_data (bfd *abfd, void * ptr) |
252b5132 | 4156 | { |
fc830a83 NC |
4157 | FILE * file = (FILE *) ptr; |
4158 | unsigned long flags; | |
252b5132 RH |
4159 | |
4160 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
4161 | ||
4162 | /* Print normal ELF private data. */ | |
4163 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
4164 | ||
fc830a83 | 4165 | flags = elf_elfheader (abfd)->e_flags; |
9b485d32 NC |
4166 | /* Ignore init flag - it may not be set, despite the flags field |
4167 | containing valid data. */ | |
252b5132 RH |
4168 | |
4169 | /* xgettext:c-format */ | |
9b485d32 | 4170 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); |
252b5132 | 4171 | |
fc830a83 NC |
4172 | switch (EF_ARM_EABI_VERSION (flags)) |
4173 | { | |
4174 | case EF_ARM_EABI_UNKNOWN: | |
4cc11e76 | 4175 | /* The following flag bits are GNU extensions and not part of the |
fc830a83 NC |
4176 | official ARM ELF extended ABI. Hence they are only decoded if |
4177 | the EABI version is not set. */ | |
fd2ec330 | 4178 | if (flags & EF_ARM_INTERWORK) |
9b485d32 | 4179 | fprintf (file, _(" [interworking enabled]")); |
9a5aca8c | 4180 | |
fd2ec330 | 4181 | if (flags & EF_ARM_APCS_26) |
6c571f00 | 4182 | fprintf (file, " [APCS-26]"); |
fc830a83 | 4183 | else |
6c571f00 | 4184 | fprintf (file, " [APCS-32]"); |
9a5aca8c | 4185 | |
96a846ea RE |
4186 | if (flags & EF_ARM_VFP_FLOAT) |
4187 | fprintf (file, _(" [VFP float format]")); | |
fde78edd NC |
4188 | else if (flags & EF_ARM_MAVERICK_FLOAT) |
4189 | fprintf (file, _(" [Maverick float format]")); | |
96a846ea RE |
4190 | else |
4191 | fprintf (file, _(" [FPA float format]")); | |
4192 | ||
fd2ec330 | 4193 | if (flags & EF_ARM_APCS_FLOAT) |
9b485d32 | 4194 | fprintf (file, _(" [floats passed in float registers]")); |
9a5aca8c | 4195 | |
fd2ec330 | 4196 | if (flags & EF_ARM_PIC) |
9b485d32 | 4197 | fprintf (file, _(" [position independent]")); |
fc830a83 | 4198 | |
fd2ec330 | 4199 | if (flags & EF_ARM_NEW_ABI) |
9b485d32 | 4200 | fprintf (file, _(" [new ABI]")); |
9a5aca8c | 4201 | |
fd2ec330 | 4202 | if (flags & EF_ARM_OLD_ABI) |
9b485d32 | 4203 | fprintf (file, _(" [old ABI]")); |
9a5aca8c | 4204 | |
fd2ec330 | 4205 | if (flags & EF_ARM_SOFT_FLOAT) |
9b485d32 | 4206 | fprintf (file, _(" [software FP]")); |
9a5aca8c | 4207 | |
96a846ea RE |
4208 | flags &= ~(EF_ARM_INTERWORK | EF_ARM_APCS_26 | EF_ARM_APCS_FLOAT |
4209 | | EF_ARM_PIC | EF_ARM_NEW_ABI | EF_ARM_OLD_ABI | |
fde78edd NC |
4210 | | EF_ARM_SOFT_FLOAT | EF_ARM_VFP_FLOAT |
4211 | | EF_ARM_MAVERICK_FLOAT); | |
fc830a83 | 4212 | break; |
9a5aca8c | 4213 | |
fc830a83 | 4214 | case EF_ARM_EABI_VER1: |
9b485d32 | 4215 | fprintf (file, _(" [Version1 EABI]")); |
9a5aca8c | 4216 | |
fc830a83 | 4217 | if (flags & EF_ARM_SYMSARESORTED) |
9b485d32 | 4218 | fprintf (file, _(" [sorted symbol table]")); |
fc830a83 | 4219 | else |
9b485d32 | 4220 | fprintf (file, _(" [unsorted symbol table]")); |
9a5aca8c | 4221 | |
fc830a83 NC |
4222 | flags &= ~ EF_ARM_SYMSARESORTED; |
4223 | break; | |
9a5aca8c | 4224 | |
fd2ec330 PB |
4225 | case EF_ARM_EABI_VER2: |
4226 | fprintf (file, _(" [Version2 EABI]")); | |
4227 | ||
4228 | if (flags & EF_ARM_SYMSARESORTED) | |
4229 | fprintf (file, _(" [sorted symbol table]")); | |
4230 | else | |
4231 | fprintf (file, _(" [unsorted symbol table]")); | |
4232 | ||
4233 | if (flags & EF_ARM_DYNSYMSUSESEGIDX) | |
4234 | fprintf (file, _(" [dynamic symbols use segment index]")); | |
4235 | ||
4236 | if (flags & EF_ARM_MAPSYMSFIRST) | |
4237 | fprintf (file, _(" [mapping symbols precede others]")); | |
4238 | ||
99e4ae17 | 4239 | flags &= ~(EF_ARM_SYMSARESORTED | EF_ARM_DYNSYMSUSESEGIDX |
fd2ec330 PB |
4240 | | EF_ARM_MAPSYMSFIRST); |
4241 | break; | |
4242 | ||
d507cf36 PB |
4243 | case EF_ARM_EABI_VER3: |
4244 | fprintf (file, _(" [Version3 EABI]")); | |
8cb51566 PB |
4245 | break; |
4246 | ||
4247 | case EF_ARM_EABI_VER4: | |
4248 | fprintf (file, _(" [Version4 EABI]")); | |
d507cf36 PB |
4249 | |
4250 | if (flags & EF_ARM_BE8) | |
4251 | fprintf (file, _(" [BE8]")); | |
4252 | ||
4253 | if (flags & EF_ARM_LE8) | |
4254 | fprintf (file, _(" [LE8]")); | |
4255 | ||
4256 | flags &= ~(EF_ARM_LE8 | EF_ARM_BE8); | |
4257 | break; | |
4258 | ||
fc830a83 | 4259 | default: |
9b485d32 | 4260 | fprintf (file, _(" <EABI version unrecognised>")); |
fc830a83 NC |
4261 | break; |
4262 | } | |
252b5132 | 4263 | |
fc830a83 | 4264 | flags &= ~ EF_ARM_EABIMASK; |
252b5132 | 4265 | |
fc830a83 | 4266 | if (flags & EF_ARM_RELEXEC) |
9b485d32 | 4267 | fprintf (file, _(" [relocatable executable]")); |
252b5132 | 4268 | |
fc830a83 | 4269 | if (flags & EF_ARM_HASENTRY) |
9b485d32 | 4270 | fprintf (file, _(" [has entry point]")); |
252b5132 | 4271 | |
fc830a83 NC |
4272 | flags &= ~ (EF_ARM_RELEXEC | EF_ARM_HASENTRY); |
4273 | ||
4274 | if (flags) | |
9b485d32 | 4275 | fprintf (file, _("<Unrecognised flag bits set>")); |
9a5aca8c | 4276 | |
252b5132 RH |
4277 | fputc ('\n', file); |
4278 | ||
b34976b6 | 4279 | return TRUE; |
252b5132 RH |
4280 | } |
4281 | ||
4282 | static int | |
57e8b36a | 4283 | elf32_arm_get_symbol_type (Elf_Internal_Sym * elf_sym, int type) |
252b5132 | 4284 | { |
2f0ca46a NC |
4285 | switch (ELF_ST_TYPE (elf_sym->st_info)) |
4286 | { | |
4287 | case STT_ARM_TFUNC: | |
4288 | return ELF_ST_TYPE (elf_sym->st_info); | |
ce855c42 | 4289 | |
2f0ca46a NC |
4290 | case STT_ARM_16BIT: |
4291 | /* If the symbol is not an object, return the STT_ARM_16BIT flag. | |
4292 | This allows us to distinguish between data used by Thumb instructions | |
4293 | and non-data (which is probably code) inside Thumb regions of an | |
4294 | executable. */ | |
4295 | if (type != STT_OBJECT) | |
4296 | return ELF_ST_TYPE (elf_sym->st_info); | |
4297 | break; | |
9a5aca8c | 4298 | |
ce855c42 NC |
4299 | default: |
4300 | break; | |
2f0ca46a NC |
4301 | } |
4302 | ||
4303 | return type; | |
252b5132 | 4304 | } |
f21f3fe0 | 4305 | |
252b5132 | 4306 | static asection * |
57e8b36a NC |
4307 | elf32_arm_gc_mark_hook (asection * sec, |
4308 | struct bfd_link_info * info ATTRIBUTE_UNUSED, | |
4309 | Elf_Internal_Rela * rel, | |
4310 | struct elf_link_hash_entry * h, | |
4311 | Elf_Internal_Sym * sym) | |
252b5132 RH |
4312 | { |
4313 | if (h != NULL) | |
4314 | { | |
4315 | switch (ELF32_R_TYPE (rel->r_info)) | |
4316 | { | |
4317 | case R_ARM_GNU_VTINHERIT: | |
4318 | case R_ARM_GNU_VTENTRY: | |
4319 | break; | |
4320 | ||
4321 | default: | |
4322 | switch (h->root.type) | |
4323 | { | |
4324 | case bfd_link_hash_defined: | |
4325 | case bfd_link_hash_defweak: | |
4326 | return h->root.u.def.section; | |
4327 | ||
4328 | case bfd_link_hash_common: | |
4329 | return h->root.u.c.p->section; | |
e049a0de ILT |
4330 | |
4331 | default: | |
4332 | break; | |
252b5132 RH |
4333 | } |
4334 | } | |
4335 | } | |
4336 | else | |
1e2f5b6e | 4337 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
9ad5cbcf | 4338 | |
252b5132 RH |
4339 | return NULL; |
4340 | } | |
4341 | ||
780a67af NC |
4342 | /* Update the got entry reference counts for the section being removed. */ |
4343 | ||
b34976b6 | 4344 | static bfd_boolean |
ba93b8ac DJ |
4345 | elf32_arm_gc_sweep_hook (bfd * abfd, |
4346 | struct bfd_link_info * info, | |
4347 | asection * sec, | |
4348 | const Elf_Internal_Rela * relocs) | |
252b5132 | 4349 | { |
5e681ec4 PB |
4350 | Elf_Internal_Shdr *symtab_hdr; |
4351 | struct elf_link_hash_entry **sym_hashes; | |
4352 | bfd_signed_vma *local_got_refcounts; | |
4353 | const Elf_Internal_Rela *rel, *relend; | |
eb043451 PB |
4354 | struct elf32_arm_link_hash_table * globals; |
4355 | ||
4356 | globals = elf32_arm_hash_table (info); | |
5e681ec4 PB |
4357 | |
4358 | elf_section_data (sec)->local_dynrel = NULL; | |
4359 | ||
4360 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
4361 | sym_hashes = elf_sym_hashes (abfd); | |
4362 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
4363 | ||
4364 | relend = relocs + sec->reloc_count; | |
4365 | for (rel = relocs; rel < relend; rel++) | |
eb043451 | 4366 | { |
3eb128b2 AM |
4367 | unsigned long r_symndx; |
4368 | struct elf_link_hash_entry *h = NULL; | |
eb043451 | 4369 | int r_type; |
5e681ec4 | 4370 | |
3eb128b2 AM |
4371 | r_symndx = ELF32_R_SYM (rel->r_info); |
4372 | if (r_symndx >= symtab_hdr->sh_info) | |
4373 | { | |
4374 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4375 | while (h->root.type == bfd_link_hash_indirect | |
4376 | || h->root.type == bfd_link_hash_warning) | |
4377 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4378 | } | |
4379 | ||
eb043451 | 4380 | r_type = ELF32_R_TYPE (rel->r_info); |
b6ee372a | 4381 | #ifndef OLD_ARM_ABI |
eb043451 | 4382 | r_type = arm_real_reloc_type (globals, r_type); |
b6ee372a | 4383 | #endif |
eb043451 PB |
4384 | switch (r_type) |
4385 | { | |
4386 | case R_ARM_GOT32: | |
4387 | #ifndef OLD_ARM_ABI | |
4388 | case R_ARM_GOT_PREL: | |
4389 | #endif | |
ba93b8ac DJ |
4390 | case R_ARM_TLS_GD32: |
4391 | case R_ARM_TLS_IE32: | |
3eb128b2 | 4392 | if (h != NULL) |
eb043451 | 4393 | { |
eb043451 PB |
4394 | if (h->got.refcount > 0) |
4395 | h->got.refcount -= 1; | |
4396 | } | |
4397 | else if (local_got_refcounts != NULL) | |
4398 | { | |
4399 | if (local_got_refcounts[r_symndx] > 0) | |
4400 | local_got_refcounts[r_symndx] -= 1; | |
4401 | } | |
4402 | break; | |
4403 | ||
ba93b8ac DJ |
4404 | case R_ARM_TLS_LDM32: |
4405 | elf32_arm_hash_table (info)->tls_ldm_got.refcount -= 1; | |
4406 | break; | |
4407 | ||
eb043451 PB |
4408 | case R_ARM_ABS32: |
4409 | case R_ARM_REL32: | |
4410 | case R_ARM_PC24: | |
4411 | case R_ARM_PLT32: | |
4412 | #ifndef OLD_ARM_ABI | |
5b5bb741 PB |
4413 | case R_ARM_CALL: |
4414 | case R_ARM_JUMP24: | |
eb043451 PB |
4415 | case R_ARM_PREL31: |
4416 | #endif | |
b7693d02 DJ |
4417 | case R_ARM_THM_PC22: |
4418 | /* Should the interworking branches be here also? */ | |
4419 | ||
3eb128b2 | 4420 | if (h != NULL) |
eb043451 PB |
4421 | { |
4422 | struct elf32_arm_link_hash_entry *eh; | |
4423 | struct elf32_arm_relocs_copied **pp; | |
4424 | struct elf32_arm_relocs_copied *p; | |
5e681ec4 | 4425 | |
b7693d02 | 4426 | eh = (struct elf32_arm_link_hash_entry *) h; |
5e681ec4 | 4427 | |
eb043451 | 4428 | if (h->plt.refcount > 0) |
b7693d02 DJ |
4429 | { |
4430 | h->plt.refcount -= 1; | |
4431 | if (ELF32_R_TYPE (rel->r_info) == R_ARM_THM_PC22) | |
4432 | eh->plt_thumb_refcount--; | |
4433 | } | |
5e681ec4 | 4434 | |
eb043451 | 4435 | if (r_type == R_ARM_ABS32 |
eb043451 PB |
4436 | || r_type == R_ARM_REL32) |
4437 | { | |
eb043451 PB |
4438 | for (pp = &eh->relocs_copied; (p = *pp) != NULL; |
4439 | pp = &p->next) | |
4440 | if (p->section == sec) | |
4441 | { | |
4442 | p->count -= 1; | |
ba93b8ac DJ |
4443 | if (ELF32_R_TYPE (rel->r_info) == R_ARM_REL32) |
4444 | p->pc_count -= 1; | |
eb043451 PB |
4445 | if (p->count == 0) |
4446 | *pp = p->next; | |
4447 | break; | |
4448 | } | |
4449 | } | |
4450 | } | |
4451 | break; | |
5e681ec4 | 4452 | |
eb043451 PB |
4453 | default: |
4454 | break; | |
4455 | } | |
4456 | } | |
5e681ec4 | 4457 | |
b34976b6 | 4458 | return TRUE; |
252b5132 RH |
4459 | } |
4460 | ||
780a67af NC |
4461 | /* Look through the relocs for a section during the first phase. */ |
4462 | ||
b34976b6 | 4463 | static bfd_boolean |
57e8b36a NC |
4464 | elf32_arm_check_relocs (bfd *abfd, struct bfd_link_info *info, |
4465 | asection *sec, const Elf_Internal_Rela *relocs) | |
252b5132 | 4466 | { |
b34976b6 AM |
4467 | Elf_Internal_Shdr *symtab_hdr; |
4468 | struct elf_link_hash_entry **sym_hashes; | |
4469 | struct elf_link_hash_entry **sym_hashes_end; | |
4470 | const Elf_Internal_Rela *rel; | |
4471 | const Elf_Internal_Rela *rel_end; | |
4472 | bfd *dynobj; | |
5e681ec4 | 4473 | asection *sreloc; |
b34976b6 | 4474 | bfd_vma *local_got_offsets; |
5e681ec4 | 4475 | struct elf32_arm_link_hash_table *htab; |
9a5aca8c | 4476 | |
1049f94e | 4477 | if (info->relocatable) |
b34976b6 | 4478 | return TRUE; |
9a5aca8c | 4479 | |
5e681ec4 PB |
4480 | htab = elf32_arm_hash_table (info); |
4481 | sreloc = NULL; | |
9a5aca8c | 4482 | |
67687978 PB |
4483 | /* Create dynamic sections for relocatable executables so that we can |
4484 | copy relocations. */ | |
4485 | if (htab->root.is_relocatable_executable | |
4486 | && ! htab->root.dynamic_sections_created) | |
4487 | { | |
4488 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) | |
4489 | return FALSE; | |
4490 | } | |
4491 | ||
252b5132 RH |
4492 | dynobj = elf_hash_table (info)->dynobj; |
4493 | local_got_offsets = elf_local_got_offsets (abfd); | |
f21f3fe0 | 4494 | |
252b5132 RH |
4495 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4496 | sym_hashes = elf_sym_hashes (abfd); | |
9b485d32 NC |
4497 | sym_hashes_end = sym_hashes |
4498 | + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
4499 | ||
252b5132 RH |
4500 | if (!elf_bad_symtab (abfd)) |
4501 | sym_hashes_end -= symtab_hdr->sh_info; | |
9b485d32 | 4502 | |
252b5132 RH |
4503 | rel_end = relocs + sec->reloc_count; |
4504 | for (rel = relocs; rel < rel_end; rel++) | |
4505 | { | |
4506 | struct elf_link_hash_entry *h; | |
b7693d02 | 4507 | struct elf32_arm_link_hash_entry *eh; |
252b5132 | 4508 | unsigned long r_symndx; |
eb043451 | 4509 | int r_type; |
9a5aca8c | 4510 | |
252b5132 | 4511 | r_symndx = ELF32_R_SYM (rel->r_info); |
eb043451 PB |
4512 | r_type = ELF32_R_TYPE (rel->r_info); |
4513 | #ifndef OLD_ARM_ABI | |
4514 | r_type = arm_real_reloc_type (htab, r_type); | |
4515 | #endif | |
ba93b8ac DJ |
4516 | |
4517 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
4518 | { | |
4519 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), abfd, | |
4520 | r_symndx); | |
4521 | return FALSE; | |
4522 | } | |
4523 | ||
252b5132 RH |
4524 | if (r_symndx < symtab_hdr->sh_info) |
4525 | h = NULL; | |
4526 | else | |
4527 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
9a5aca8c | 4528 | |
b7693d02 DJ |
4529 | eh = (struct elf32_arm_link_hash_entry *) h; |
4530 | ||
eb043451 | 4531 | switch (r_type) |
252b5132 | 4532 | { |
5e681ec4 | 4533 | case R_ARM_GOT32: |
eb043451 PB |
4534 | #ifndef OLD_ARM_ABI |
4535 | case R_ARM_GOT_PREL: | |
4536 | #endif | |
ba93b8ac DJ |
4537 | case R_ARM_TLS_GD32: |
4538 | case R_ARM_TLS_IE32: | |
5e681ec4 | 4539 | /* This symbol requires a global offset table entry. */ |
ba93b8ac DJ |
4540 | { |
4541 | int tls_type, old_tls_type; | |
5e681ec4 | 4542 | |
ba93b8ac DJ |
4543 | switch (r_type) |
4544 | { | |
4545 | case R_ARM_TLS_GD32: tls_type = GOT_TLS_GD; break; | |
4546 | case R_ARM_TLS_IE32: tls_type = GOT_TLS_IE; break; | |
4547 | default: tls_type = GOT_NORMAL; break; | |
4548 | } | |
252b5132 | 4549 | |
ba93b8ac DJ |
4550 | if (h != NULL) |
4551 | { | |
4552 | h->got.refcount++; | |
4553 | old_tls_type = elf32_arm_hash_entry (h)->tls_type; | |
4554 | } | |
4555 | else | |
4556 | { | |
4557 | bfd_signed_vma *local_got_refcounts; | |
4558 | ||
4559 | /* This is a global offset table entry for a local symbol. */ | |
4560 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
4561 | if (local_got_refcounts == NULL) | |
4562 | { | |
4563 | bfd_size_type size; | |
4564 | ||
4565 | size = symtab_hdr->sh_info; | |
4566 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
4567 | local_got_refcounts = bfd_zalloc (abfd, size); | |
4568 | if (local_got_refcounts == NULL) | |
4569 | return FALSE; | |
4570 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
4571 | elf32_arm_local_got_tls_type (abfd) | |
4572 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
4573 | } | |
4574 | local_got_refcounts[r_symndx] += 1; | |
4575 | old_tls_type = elf32_arm_local_got_tls_type (abfd) [r_symndx]; | |
4576 | } | |
4577 | ||
4578 | /* We will already have issued an error message if there is a | |
4579 | TLS / non-TLS mismatch, based on the symbol type. We don't | |
4580 | support any linker relaxations. So just combine any TLS | |
4581 | types needed. */ | |
4582 | if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL | |
4583 | && tls_type != GOT_NORMAL) | |
4584 | tls_type |= old_tls_type; | |
4585 | ||
4586 | if (old_tls_type != tls_type) | |
4587 | { | |
4588 | if (h != NULL) | |
4589 | elf32_arm_hash_entry (h)->tls_type = tls_type; | |
4590 | else | |
4591 | elf32_arm_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
4592 | } | |
4593 | } | |
4594 | /* Fall through */ | |
4595 | ||
4596 | case R_ARM_TLS_LDM32: | |
4597 | if (r_type == R_ARM_TLS_LDM32) | |
4598 | htab->tls_ldm_got.refcount++; | |
4599 | /* Fall through */ | |
252b5132 | 4600 | |
5e681ec4 PB |
4601 | case R_ARM_GOTOFF: |
4602 | case R_ARM_GOTPC: | |
4603 | if (htab->sgot == NULL) | |
4604 | { | |
4605 | if (htab->root.dynobj == NULL) | |
4606 | htab->root.dynobj = abfd; | |
4607 | if (!create_got_section (htab->root.dynobj, info)) | |
4608 | return FALSE; | |
4609 | } | |
252b5132 RH |
4610 | break; |
4611 | ||
4612 | case R_ARM_ABS32: | |
4613 | case R_ARM_REL32: | |
4614 | case R_ARM_PC24: | |
7359ea65 | 4615 | case R_ARM_PLT32: |
eb043451 | 4616 | #ifndef OLD_ARM_ABI |
5b5bb741 PB |
4617 | case R_ARM_CALL: |
4618 | case R_ARM_JUMP24: | |
eb043451 PB |
4619 | case R_ARM_PREL31: |
4620 | #endif | |
b7693d02 DJ |
4621 | case R_ARM_THM_PC22: |
4622 | /* Should the interworking branches be listed here? */ | |
7359ea65 | 4623 | if (h != NULL) |
5e681ec4 PB |
4624 | { |
4625 | /* If this reloc is in a read-only section, we might | |
4626 | need a copy reloc. We can't check reliably at this | |
4627 | stage whether the section is read-only, as input | |
4628 | sections have not yet been mapped to output sections. | |
4629 | Tentatively set the flag for now, and correct in | |
4630 | adjust_dynamic_symbol. */ | |
7359ea65 | 4631 | if (!info->shared) |
f5385ebf | 4632 | h->non_got_ref = 1; |
7359ea65 | 4633 | |
5e681ec4 | 4634 | /* We may need a .plt entry if the function this reloc |
c84cd8ee DJ |
4635 | refers to is in a different object. We can't tell for |
4636 | sure yet, because something later might force the | |
4637 | symbol local. */ | |
eb043451 | 4638 | if (r_type == R_ARM_PC24 |
5b5bb741 PB |
4639 | #ifndef OLD_ARM_ABI |
4640 | || r_type == R_ARM_CALL | |
4641 | || r_type == R_ARM_JUMP24 | |
ee06dc07 | 4642 | || r_type == R_ARM_PREL31 |
5b5bb741 | 4643 | #endif |
b7693d02 DJ |
4644 | || r_type == R_ARM_PLT32 |
4645 | || r_type == R_ARM_THM_PC22) | |
f5385ebf | 4646 | h->needs_plt = 1; |
4f199be3 DJ |
4647 | |
4648 | /* If we create a PLT entry, this relocation will reference | |
4649 | it, even if it's an ABS32 relocation. */ | |
4650 | h->plt.refcount += 1; | |
b7693d02 DJ |
4651 | |
4652 | if (r_type == R_ARM_THM_PC22) | |
4653 | eh->plt_thumb_refcount += 1; | |
5e681ec4 PB |
4654 | } |
4655 | ||
67687978 PB |
4656 | /* If we are creating a shared library or relocatable executable, |
4657 | and this is a reloc against a global symbol, or a non PC | |
4658 | relative reloc against a local symbol, then we need to copy | |
4659 | the reloc into the shared library. However, if we are linking | |
4660 | with -Bsymbolic, we do not need to copy a reloc against a | |
252b5132 RH |
4661 | global symbol which is defined in an object we are |
4662 | including in the link (i.e., DEF_REGULAR is set). At | |
4663 | this point we have not seen all the input files, so it is | |
4664 | possible that DEF_REGULAR is not set now but will be set | |
4665 | later (it is never cleared). We account for that | |
4666 | possibility below by storing information in the | |
5e681ec4 | 4667 | relocs_copied field of the hash table entry. */ |
67687978 | 4668 | if ((info->shared || htab->root.is_relocatable_executable) |
5e681ec4 | 4669 | && (sec->flags & SEC_ALLOC) != 0 |
71a976dd DJ |
4670 | && (r_type == R_ARM_ABS32 |
4671 | || (h != NULL && ! h->needs_plt | |
4672 | && (! info->symbolic || ! h->def_regular)))) | |
252b5132 | 4673 | { |
5e681ec4 PB |
4674 | struct elf32_arm_relocs_copied *p, **head; |
4675 | ||
252b5132 RH |
4676 | /* When creating a shared object, we must copy these |
4677 | reloc types into the output file. We create a reloc | |
4678 | section in dynobj and make room for this reloc. */ | |
4679 | if (sreloc == NULL) | |
4680 | { | |
4681 | const char * name; | |
4682 | ||
4683 | name = (bfd_elf_string_from_elf_section | |
4684 | (abfd, | |
4685 | elf_elfheader (abfd)->e_shstrndx, | |
4686 | elf_section_data (sec)->rel_hdr.sh_name)); | |
4687 | if (name == NULL) | |
b34976b6 | 4688 | return FALSE; |
252b5132 RH |
4689 | |
4690 | BFD_ASSERT (strncmp (name, ".rel", 4) == 0 | |
99e4ae17 | 4691 | && strcmp (bfd_get_section_name (abfd, sec), |
252b5132 RH |
4692 | name + 4) == 0); |
4693 | ||
4694 | sreloc = bfd_get_section_by_name (dynobj, name); | |
4695 | if (sreloc == NULL) | |
4696 | { | |
4697 | flagword flags; | |
4698 | ||
252b5132 RH |
4699 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
4700 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
e5a52504 MM |
4701 | if ((sec->flags & SEC_ALLOC) != 0 |
4702 | /* BPABI objects never have dynamic | |
4703 | relocations mapped. */ | |
4704 | && !htab->symbian_p) | |
252b5132 | 4705 | flags |= SEC_ALLOC | SEC_LOAD; |
3496cb2a L |
4706 | sreloc = bfd_make_section_with_flags (dynobj, |
4707 | name, | |
4708 | flags); | |
252b5132 | 4709 | if (sreloc == NULL |
252b5132 | 4710 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
b34976b6 | 4711 | return FALSE; |
252b5132 | 4712 | } |
5e681ec4 PB |
4713 | |
4714 | elf_section_data (sec)->sreloc = sreloc; | |
252b5132 RH |
4715 | } |
4716 | ||
5e681ec4 PB |
4717 | /* If this is a global symbol, we count the number of |
4718 | relocations we need for this symbol. */ | |
4719 | if (h != NULL) | |
252b5132 | 4720 | { |
5e681ec4 PB |
4721 | head = &((struct elf32_arm_link_hash_entry *) h)->relocs_copied; |
4722 | } | |
4723 | else | |
4724 | { | |
4725 | /* Track dynamic relocs needed for local syms too. | |
4726 | We really need local syms available to do this | |
4727 | easily. Oh well. */ | |
57e8b36a | 4728 | |
5e681ec4 PB |
4729 | asection *s; |
4730 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
4731 | sec, r_symndx); | |
4732 | if (s == NULL) | |
4733 | return FALSE; | |
57e8b36a | 4734 | |
5e681ec4 PB |
4735 | head = ((struct elf32_arm_relocs_copied **) |
4736 | &elf_section_data (s)->local_dynrel); | |
4737 | } | |
57e8b36a | 4738 | |
5e681ec4 PB |
4739 | p = *head; |
4740 | if (p == NULL || p->section != sec) | |
4741 | { | |
4742 | bfd_size_type amt = sizeof *p; | |
57e8b36a | 4743 | |
5e681ec4 | 4744 | p = bfd_alloc (htab->root.dynobj, amt); |
252b5132 | 4745 | if (p == NULL) |
5e681ec4 PB |
4746 | return FALSE; |
4747 | p->next = *head; | |
4748 | *head = p; | |
4749 | p->section = sec; | |
4750 | p->count = 0; | |
ba93b8ac | 4751 | p->pc_count = 0; |
252b5132 | 4752 | } |
57e8b36a | 4753 | |
ba93b8ac DJ |
4754 | if (r_type == R_ARM_REL32) |
4755 | p->pc_count += 1; | |
71a976dd | 4756 | p->count += 1; |
252b5132 RH |
4757 | } |
4758 | break; | |
4759 | ||
4760 | /* This relocation describes the C++ object vtable hierarchy. | |
4761 | Reconstruct it for later use during GC. */ | |
4762 | case R_ARM_GNU_VTINHERIT: | |
c152c796 | 4763 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 4764 | return FALSE; |
252b5132 | 4765 | break; |
9a5aca8c | 4766 | |
252b5132 RH |
4767 | /* This relocation describes which C++ vtable entries are actually |
4768 | used. Record for later use during GC. */ | |
4769 | case R_ARM_GNU_VTENTRY: | |
c152c796 | 4770 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) |
b34976b6 | 4771 | return FALSE; |
252b5132 RH |
4772 | break; |
4773 | } | |
4774 | } | |
f21f3fe0 | 4775 | |
b34976b6 | 4776 | return TRUE; |
252b5132 RH |
4777 | } |
4778 | ||
3c9458e9 NC |
4779 | /* Treat mapping symbols as special target symbols. */ |
4780 | ||
4781 | static bfd_boolean | |
4782 | elf32_arm_is_target_special_symbol (bfd * abfd ATTRIBUTE_UNUSED, asymbol * sym) | |
4783 | { | |
05ea83ed | 4784 | return bfd_is_arm_mapping_symbol_name (sym->name); |
3c9458e9 NC |
4785 | } |
4786 | ||
0367ecfb NC |
4787 | /* This is a copy of elf_find_function() from elf.c except that |
4788 | ARM mapping symbols are ignored when looking for function names | |
4789 | and STT_ARM_TFUNC is considered to a function type. */ | |
252b5132 | 4790 | |
0367ecfb NC |
4791 | static bfd_boolean |
4792 | arm_elf_find_function (bfd * abfd ATTRIBUTE_UNUSED, | |
4793 | asection * section, | |
4794 | asymbol ** symbols, | |
4795 | bfd_vma offset, | |
4796 | const char ** filename_ptr, | |
4797 | const char ** functionname_ptr) | |
4798 | { | |
4799 | const char * filename = NULL; | |
4800 | asymbol * func = NULL; | |
4801 | bfd_vma low_func = 0; | |
4802 | asymbol ** p; | |
252b5132 RH |
4803 | |
4804 | for (p = symbols; *p != NULL; p++) | |
4805 | { | |
4806 | elf_symbol_type *q; | |
4807 | ||
4808 | q = (elf_symbol_type *) *p; | |
4809 | ||
252b5132 RH |
4810 | switch (ELF_ST_TYPE (q->internal_elf_sym.st_info)) |
4811 | { | |
4812 | default: | |
4813 | break; | |
4814 | case STT_FILE: | |
4815 | filename = bfd_asymbol_name (&q->symbol); | |
4816 | break; | |
252b5132 RH |
4817 | case STT_FUNC: |
4818 | case STT_ARM_TFUNC: | |
9d2da7ca | 4819 | case STT_NOTYPE: |
0367ecfb NC |
4820 | /* Skip $a and $t symbols. */ |
4821 | if ((q->symbol.flags & BSF_LOCAL) | |
05ea83ed | 4822 | && bfd_is_arm_mapping_symbol_name (q->symbol.name)) |
0367ecfb NC |
4823 | continue; |
4824 | /* Fall through. */ | |
6b40fcba | 4825 | if (bfd_get_section (&q->symbol) == section |
252b5132 RH |
4826 | && q->symbol.value >= low_func |
4827 | && q->symbol.value <= offset) | |
4828 | { | |
4829 | func = (asymbol *) q; | |
4830 | low_func = q->symbol.value; | |
4831 | } | |
4832 | break; | |
4833 | } | |
4834 | } | |
4835 | ||
4836 | if (func == NULL) | |
b34976b6 | 4837 | return FALSE; |
252b5132 | 4838 | |
0367ecfb NC |
4839 | if (filename_ptr) |
4840 | *filename_ptr = filename; | |
4841 | if (functionname_ptr) | |
4842 | *functionname_ptr = bfd_asymbol_name (func); | |
4843 | ||
4844 | return TRUE; | |
4845 | } | |
4846 | ||
4847 | ||
4848 | /* Find the nearest line to a particular section and offset, for error | |
4849 | reporting. This code is a duplicate of the code in elf.c, except | |
4850 | that it uses arm_elf_find_function. */ | |
4851 | ||
4852 | static bfd_boolean | |
4853 | elf32_arm_find_nearest_line (bfd * abfd, | |
4854 | asection * section, | |
4855 | asymbol ** symbols, | |
4856 | bfd_vma offset, | |
4857 | const char ** filename_ptr, | |
4858 | const char ** functionname_ptr, | |
4859 | unsigned int * line_ptr) | |
4860 | { | |
4861 | bfd_boolean found = FALSE; | |
4862 | ||
4863 | /* We skip _bfd_dwarf1_find_nearest_line since no known ARM toolchain uses it. */ | |
4864 | ||
4865 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |
4866 | filename_ptr, functionname_ptr, | |
4867 | line_ptr, 0, | |
4868 | & elf_tdata (abfd)->dwarf2_find_line_info)) | |
4869 | { | |
4870 | if (!*functionname_ptr) | |
4871 | arm_elf_find_function (abfd, section, symbols, offset, | |
4872 | *filename_ptr ? NULL : filename_ptr, | |
4873 | functionname_ptr); | |
f21f3fe0 | 4874 | |
0367ecfb NC |
4875 | return TRUE; |
4876 | } | |
4877 | ||
4878 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
4879 | & found, filename_ptr, | |
4880 | functionname_ptr, line_ptr, | |
4881 | & elf_tdata (abfd)->line_info)) | |
4882 | return FALSE; | |
4883 | ||
4884 | if (found && (*functionname_ptr || *line_ptr)) | |
4885 | return TRUE; | |
4886 | ||
4887 | if (symbols == NULL) | |
4888 | return FALSE; | |
4889 | ||
4890 | if (! arm_elf_find_function (abfd, section, symbols, offset, | |
4891 | filename_ptr, functionname_ptr)) | |
4892 | return FALSE; | |
4893 | ||
4894 | *line_ptr = 0; | |
b34976b6 | 4895 | return TRUE; |
252b5132 RH |
4896 | } |
4897 | ||
4898 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
4899 | regular object. The current definition is in some section of the | |
4900 | dynamic object, but we're not including those sections. We have to | |
4901 | change the definition to something the rest of the link can | |
4902 | understand. */ | |
4903 | ||
b34976b6 | 4904 | static bfd_boolean |
57e8b36a NC |
4905 | elf32_arm_adjust_dynamic_symbol (struct bfd_link_info * info, |
4906 | struct elf_link_hash_entry * h) | |
252b5132 RH |
4907 | { |
4908 | bfd * dynobj; | |
4909 | asection * s; | |
4910 | unsigned int power_of_two; | |
b7693d02 | 4911 | struct elf32_arm_link_hash_entry * eh; |
67687978 | 4912 | struct elf32_arm_link_hash_table *globals; |
252b5132 | 4913 | |
67687978 | 4914 | globals = elf32_arm_hash_table (info); |
252b5132 RH |
4915 | dynobj = elf_hash_table (info)->dynobj; |
4916 | ||
4917 | /* Make sure we know what is going on here. */ | |
4918 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 4919 | && (h->needs_plt |
f6e332e6 | 4920 | || h->u.weakdef != NULL |
f5385ebf AM |
4921 | || (h->def_dynamic |
4922 | && h->ref_regular | |
4923 | && !h->def_regular))); | |
252b5132 | 4924 | |
b7693d02 DJ |
4925 | eh = (struct elf32_arm_link_hash_entry *) h; |
4926 | ||
252b5132 RH |
4927 | /* If this is a function, put it in the procedure linkage table. We |
4928 | will fill in the contents of the procedure linkage table later, | |
4929 | when we know the address of the .got section. */ | |
b7693d02 | 4930 | if (h->type == STT_FUNC || h->type == STT_ARM_TFUNC |
f5385ebf | 4931 | || h->needs_plt) |
252b5132 | 4932 | { |
5e681ec4 PB |
4933 | if (h->plt.refcount <= 0 |
4934 | || SYMBOL_CALLS_LOCAL (info, h) | |
4935 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4936 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
4937 | { |
4938 | /* This case can occur if we saw a PLT32 reloc in an input | |
5e681ec4 PB |
4939 | file, but the symbol was never referred to by a dynamic |
4940 | object, or if all references were garbage collected. In | |
4941 | such a case, we don't actually need to build a procedure | |
4942 | linkage table, and we can just do a PC24 reloc instead. */ | |
4943 | h->plt.offset = (bfd_vma) -1; | |
b7693d02 | 4944 | eh->plt_thumb_refcount = 0; |
f5385ebf | 4945 | h->needs_plt = 0; |
252b5132 RH |
4946 | } |
4947 | ||
b34976b6 | 4948 | return TRUE; |
252b5132 | 4949 | } |
5e681ec4 | 4950 | else |
b7693d02 DJ |
4951 | { |
4952 | /* It's possible that we incorrectly decided a .plt reloc was | |
4953 | needed for an R_ARM_PC24 or similar reloc to a non-function sym | |
4954 | in check_relocs. We can't decide accurately between function | |
4955 | and non-function syms in check-relocs; Objects loaded later in | |
4956 | the link may change h->type. So fix it now. */ | |
4957 | h->plt.offset = (bfd_vma) -1; | |
4958 | eh->plt_thumb_refcount = 0; | |
4959 | } | |
252b5132 RH |
4960 | |
4961 | /* If this is a weak symbol, and there is a real definition, the | |
4962 | processor independent code will have arranged for us to see the | |
4963 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 4964 | if (h->u.weakdef != NULL) |
252b5132 | 4965 | { |
f6e332e6 AM |
4966 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
4967 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
4968 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
4969 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
b34976b6 | 4970 | return TRUE; |
252b5132 RH |
4971 | } |
4972 | ||
ba93b8ac DJ |
4973 | /* If there are no non-GOT references, we do not need a copy |
4974 | relocation. */ | |
4975 | if (!h->non_got_ref) | |
4976 | return TRUE; | |
4977 | ||
252b5132 RH |
4978 | /* This is a reference to a symbol defined by a dynamic object which |
4979 | is not a function. */ | |
4980 | ||
4981 | /* If we are creating a shared library, we must presume that the | |
4982 | only references to the symbol are via the global offset table. | |
4983 | For such cases we need not do anything here; the relocations will | |
67687978 PB |
4984 | be handled correctly by relocate_section. Relocatable executables |
4985 | can reference data in shared objects directly, so we don't need to | |
4986 | do anything here. */ | |
4987 | if (info->shared || globals->root.is_relocatable_executable) | |
b34976b6 | 4988 | return TRUE; |
252b5132 RH |
4989 | |
4990 | /* We must allocate the symbol in our .dynbss section, which will | |
4991 | become part of the .bss section of the executable. There will be | |
4992 | an entry for this symbol in the .dynsym section. The dynamic | |
4993 | object will contain position independent code, so all references | |
4994 | from the dynamic object to this symbol will go through the global | |
4995 | offset table. The dynamic linker will use the .dynsym entry to | |
4996 | determine the address it must put in the global offset table, so | |
4997 | both the dynamic object and the regular object will refer to the | |
4998 | same memory location for the variable. */ | |
252b5132 RH |
4999 | s = bfd_get_section_by_name (dynobj, ".dynbss"); |
5000 | BFD_ASSERT (s != NULL); | |
5001 | ||
5002 | /* We must generate a R_ARM_COPY reloc to tell the dynamic linker to | |
5003 | copy the initial value out of the dynamic object and into the | |
5004 | runtime process image. We need to remember the offset into the | |
5005 | .rel.bss section we are going to use. */ | |
5006 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
5007 | { | |
5008 | asection *srel; | |
5009 | ||
5010 | srel = bfd_get_section_by_name (dynobj, ".rel.bss"); | |
5011 | BFD_ASSERT (srel != NULL); | |
eea6121a | 5012 | srel->size += sizeof (Elf32_External_Rel); |
f5385ebf | 5013 | h->needs_copy = 1; |
252b5132 RH |
5014 | } |
5015 | ||
5016 | /* We need to figure out the alignment required for this symbol. I | |
5017 | have no idea how ELF linkers handle this. */ | |
5018 | power_of_two = bfd_log2 (h->size); | |
5019 | if (power_of_two > 3) | |
5020 | power_of_two = 3; | |
5021 | ||
5022 | /* Apply the required alignment. */ | |
eea6121a | 5023 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
252b5132 RH |
5024 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
5025 | { | |
5026 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
b34976b6 | 5027 | return FALSE; |
252b5132 RH |
5028 | } |
5029 | ||
5030 | /* Define the symbol as being at this point in the section. */ | |
5031 | h->root.u.def.section = s; | |
eea6121a | 5032 | h->root.u.def.value = s->size; |
252b5132 RH |
5033 | |
5034 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 5035 | s->size += h->size; |
252b5132 | 5036 | |
b34976b6 | 5037 | return TRUE; |
252b5132 RH |
5038 | } |
5039 | ||
5e681ec4 PB |
5040 | /* Allocate space in .plt, .got and associated reloc sections for |
5041 | dynamic relocs. */ | |
5042 | ||
5043 | static bfd_boolean | |
57e8b36a | 5044 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
5e681ec4 PB |
5045 | { |
5046 | struct bfd_link_info *info; | |
5047 | struct elf32_arm_link_hash_table *htab; | |
5048 | struct elf32_arm_link_hash_entry *eh; | |
5049 | struct elf32_arm_relocs_copied *p; | |
5050 | ||
b7693d02 DJ |
5051 | eh = (struct elf32_arm_link_hash_entry *) h; |
5052 | ||
5e681ec4 PB |
5053 | if (h->root.type == bfd_link_hash_indirect) |
5054 | return TRUE; | |
5055 | ||
5056 | if (h->root.type == bfd_link_hash_warning) | |
5057 | /* When warning symbols are created, they **replace** the "real" | |
5058 | entry in the hash table, thus we never get to see the real | |
5059 | symbol in a hash traversal. So look at it now. */ | |
5060 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5061 | ||
5062 | info = (struct bfd_link_info *) inf; | |
5063 | htab = elf32_arm_hash_table (info); | |
5064 | ||
5065 | if (htab->root.dynamic_sections_created | |
5066 | && h->plt.refcount > 0) | |
5067 | { | |
5068 | /* Make sure this symbol is output as a dynamic symbol. | |
5069 | Undefined weak syms won't yet be marked as dynamic. */ | |
5070 | if (h->dynindx == -1 | |
f5385ebf | 5071 | && !h->forced_local) |
5e681ec4 | 5072 | { |
c152c796 | 5073 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
5074 | return FALSE; |
5075 | } | |
5076 | ||
5077 | if (info->shared | |
7359ea65 | 5078 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
5e681ec4 PB |
5079 | { |
5080 | asection *s = htab->splt; | |
5081 | ||
5082 | /* If this is the first .plt entry, make room for the special | |
5083 | first entry. */ | |
eea6121a | 5084 | if (s->size == 0) |
e5a52504 | 5085 | s->size += htab->plt_header_size; |
5e681ec4 | 5086 | |
eea6121a | 5087 | h->plt.offset = s->size; |
5e681ec4 | 5088 | |
b7693d02 DJ |
5089 | /* If we will insert a Thumb trampoline before this PLT, leave room |
5090 | for it. */ | |
33bfe774 | 5091 | if (!htab->use_blx && eh->plt_thumb_refcount > 0) |
b7693d02 DJ |
5092 | { |
5093 | h->plt.offset += PLT_THUMB_STUB_SIZE; | |
5094 | s->size += PLT_THUMB_STUB_SIZE; | |
5095 | } | |
5096 | ||
5e681ec4 PB |
5097 | /* If this symbol is not defined in a regular file, and we are |
5098 | not generating a shared library, then set the symbol to this | |
5099 | location in the .plt. This is required to make function | |
5100 | pointers compare as equal between the normal executable and | |
5101 | the shared library. */ | |
5102 | if (! info->shared | |
f5385ebf | 5103 | && !h->def_regular) |
5e681ec4 PB |
5104 | { |
5105 | h->root.u.def.section = s; | |
5106 | h->root.u.def.value = h->plt.offset; | |
b7693d02 DJ |
5107 | |
5108 | /* Make sure the function is not marked as Thumb, in case | |
5109 | it is the target of an ABS32 relocation, which will | |
5110 | point to the PLT entry. */ | |
5111 | if (ELF_ST_TYPE (h->type) == STT_ARM_TFUNC) | |
5112 | h->type = ELF_ST_INFO (ELF_ST_BIND (h->type), STT_FUNC); | |
5e681ec4 PB |
5113 | } |
5114 | ||
5115 | /* Make room for this entry. */ | |
e5a52504 | 5116 | s->size += htab->plt_entry_size; |
5e681ec4 | 5117 | |
e5a52504 | 5118 | if (!htab->symbian_p) |
b7693d02 DJ |
5119 | { |
5120 | /* We also need to make an entry in the .got.plt section, which | |
5121 | will be placed in the .got section by the linker script. */ | |
5122 | eh->plt_got_offset = htab->sgotplt->size; | |
5123 | htab->sgotplt->size += 4; | |
5124 | } | |
5e681ec4 PB |
5125 | |
5126 | /* We also need to make an entry in the .rel.plt section. */ | |
eea6121a | 5127 | htab->srelplt->size += sizeof (Elf32_External_Rel); |
5e681ec4 PB |
5128 | } |
5129 | else | |
5130 | { | |
5131 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 5132 | h->needs_plt = 0; |
5e681ec4 PB |
5133 | } |
5134 | } | |
5135 | else | |
5136 | { | |
5137 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 5138 | h->needs_plt = 0; |
5e681ec4 PB |
5139 | } |
5140 | ||
5141 | if (h->got.refcount > 0) | |
5142 | { | |
5143 | asection *s; | |
5144 | bfd_boolean dyn; | |
ba93b8ac DJ |
5145 | int tls_type = elf32_arm_hash_entry (h)->tls_type; |
5146 | int indx; | |
5e681ec4 PB |
5147 | |
5148 | /* Make sure this symbol is output as a dynamic symbol. | |
5149 | Undefined weak syms won't yet be marked as dynamic. */ | |
5150 | if (h->dynindx == -1 | |
f5385ebf | 5151 | && !h->forced_local) |
5e681ec4 | 5152 | { |
c152c796 | 5153 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
5154 | return FALSE; |
5155 | } | |
5156 | ||
e5a52504 MM |
5157 | if (!htab->symbian_p) |
5158 | { | |
5159 | s = htab->sgot; | |
5160 | h->got.offset = s->size; | |
ba93b8ac DJ |
5161 | |
5162 | if (tls_type == GOT_UNKNOWN) | |
5163 | abort (); | |
5164 | ||
5165 | if (tls_type == GOT_NORMAL) | |
5166 | /* Non-TLS symbols need one GOT slot. */ | |
5167 | s->size += 4; | |
5168 | else | |
5169 | { | |
5170 | if (tls_type & GOT_TLS_GD) | |
5171 | /* R_ARM_TLS_GD32 needs 2 consecutive GOT slots. */ | |
5172 | s->size += 8; | |
5173 | if (tls_type & GOT_TLS_IE) | |
5174 | /* R_ARM_TLS_IE32 needs one GOT slot. */ | |
5175 | s->size += 4; | |
5176 | } | |
5177 | ||
e5a52504 | 5178 | dyn = htab->root.dynamic_sections_created; |
ba93b8ac DJ |
5179 | |
5180 | indx = 0; | |
5181 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
5182 | && (!info->shared | |
5183 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
5184 | indx = h->dynindx; | |
5185 | ||
5186 | if (tls_type != GOT_NORMAL | |
5187 | && (info->shared || indx != 0) | |
5188 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5189 | || h->root.type != bfd_link_hash_undefweak)) | |
5190 | { | |
5191 | if (tls_type & GOT_TLS_IE) | |
5192 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
5193 | ||
5194 | if (tls_type & GOT_TLS_GD) | |
5195 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
5196 | ||
5197 | if ((tls_type & GOT_TLS_GD) && indx != 0) | |
5198 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
5199 | } | |
5200 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5201 | || h->root.type != bfd_link_hash_undefweak) | |
5202 | && (info->shared | |
5203 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
e5a52504 MM |
5204 | htab->srelgot->size += sizeof (Elf32_External_Rel); |
5205 | } | |
5e681ec4 PB |
5206 | } |
5207 | else | |
5208 | h->got.offset = (bfd_vma) -1; | |
5209 | ||
5e681ec4 PB |
5210 | if (eh->relocs_copied == NULL) |
5211 | return TRUE; | |
5212 | ||
5213 | /* In the shared -Bsymbolic case, discard space allocated for | |
5214 | dynamic pc-relative relocs against symbols which turn out to be | |
5215 | defined in regular objects. For the normal shared case, discard | |
5216 | space for pc-relative relocs that have become local due to symbol | |
5217 | visibility changes. */ | |
5218 | ||
67687978 | 5219 | if (info->shared || htab->root.is_relocatable_executable) |
5e681ec4 | 5220 | { |
ba93b8ac DJ |
5221 | /* The only reloc that uses pc_count is R_ARM_REL32, which will |
5222 | appear on something like ".long foo - .". We want calls to | |
5223 | protected symbols to resolve directly to the function rather | |
5224 | than going via the plt. If people want function pointer | |
5225 | comparisons to work as expected then they should avoid | |
5226 | writing assembly like ".long foo - .". */ | |
5227 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
5228 | { | |
5229 | struct elf32_arm_relocs_copied **pp; | |
5230 | ||
5231 | for (pp = &eh->relocs_copied; (p = *pp) != NULL; ) | |
5232 | { | |
5233 | p->count -= p->pc_count; | |
5234 | p->pc_count = 0; | |
5235 | if (p->count == 0) | |
5236 | *pp = p->next; | |
5237 | else | |
5238 | pp = &p->next; | |
5239 | } | |
5240 | } | |
5241 | ||
5242 | /* Also discard relocs on undefined weak syms with non-default | |
7359ea65 | 5243 | visibility. */ |
5e681ec4 PB |
5244 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
5245 | && h->root.type == bfd_link_hash_undefweak) | |
5246 | eh->relocs_copied = NULL; | |
67687978 PB |
5247 | else if (htab->root.is_relocatable_executable && h->dynindx == -1 |
5248 | && h->root.type == bfd_link_hash_new) | |
5249 | { | |
5250 | /* Output absolute symbols so that we can create relocations | |
5251 | against them. For normal symbols we output a relocation | |
5252 | against the section that contains them. */ | |
5253 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
5254 | return FALSE; | |
5255 | } | |
5256 | ||
5e681ec4 PB |
5257 | } |
5258 | else | |
5259 | { | |
5260 | /* For the non-shared case, discard space for relocs against | |
5261 | symbols which turn out to need copy relocs or are not | |
5262 | dynamic. */ | |
5263 | ||
f5385ebf AM |
5264 | if (!h->non_got_ref |
5265 | && ((h->def_dynamic | |
5266 | && !h->def_regular) | |
5e681ec4 PB |
5267 | || (htab->root.dynamic_sections_created |
5268 | && (h->root.type == bfd_link_hash_undefweak | |
5269 | || h->root.type == bfd_link_hash_undefined)))) | |
5270 | { | |
5271 | /* Make sure this symbol is output as a dynamic symbol. | |
5272 | Undefined weak syms won't yet be marked as dynamic. */ | |
5273 | if (h->dynindx == -1 | |
f5385ebf | 5274 | && !h->forced_local) |
5e681ec4 | 5275 | { |
c152c796 | 5276 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
5277 | return FALSE; |
5278 | } | |
5279 | ||
5280 | /* If that succeeded, we know we'll be keeping all the | |
5281 | relocs. */ | |
5282 | if (h->dynindx != -1) | |
5283 | goto keep; | |
5284 | } | |
5285 | ||
5286 | eh->relocs_copied = NULL; | |
5287 | ||
5288 | keep: ; | |
5289 | } | |
5290 | ||
5291 | /* Finally, allocate space. */ | |
5292 | for (p = eh->relocs_copied; p != NULL; p = p->next) | |
5293 | { | |
5294 | asection *sreloc = elf_section_data (p->section)->sreloc; | |
eea6121a | 5295 | sreloc->size += p->count * sizeof (Elf32_External_Rel); |
5e681ec4 PB |
5296 | } |
5297 | ||
5298 | return TRUE; | |
5299 | } | |
5300 | ||
08d1f311 DJ |
5301 | /* Find any dynamic relocs that apply to read-only sections. */ |
5302 | ||
5303 | static bfd_boolean | |
5304 | elf32_arm_readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf) | |
5305 | { | |
5306 | struct elf32_arm_link_hash_entry *eh; | |
5307 | struct elf32_arm_relocs_copied *p; | |
5308 | ||
5309 | if (h->root.type == bfd_link_hash_warning) | |
5310 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5311 | ||
5312 | eh = (struct elf32_arm_link_hash_entry *) h; | |
5313 | for (p = eh->relocs_copied; p != NULL; p = p->next) | |
5314 | { | |
5315 | asection *s = p->section; | |
5316 | ||
5317 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5318 | { | |
5319 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
5320 | ||
5321 | info->flags |= DF_TEXTREL; | |
5322 | ||
5323 | /* Not an error, just cut short the traversal. */ | |
5324 | return FALSE; | |
5325 | } | |
5326 | } | |
5327 | return TRUE; | |
5328 | } | |
5329 | ||
252b5132 RH |
5330 | /* Set the sizes of the dynamic sections. */ |
5331 | ||
b34976b6 | 5332 | static bfd_boolean |
57e8b36a NC |
5333 | elf32_arm_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED, |
5334 | struct bfd_link_info * info) | |
252b5132 RH |
5335 | { |
5336 | bfd * dynobj; | |
5337 | asection * s; | |
b34976b6 AM |
5338 | bfd_boolean plt; |
5339 | bfd_boolean relocs; | |
5e681ec4 PB |
5340 | bfd *ibfd; |
5341 | struct elf32_arm_link_hash_table *htab; | |
252b5132 | 5342 | |
5e681ec4 | 5343 | htab = elf32_arm_hash_table (info); |
252b5132 RH |
5344 | dynobj = elf_hash_table (info)->dynobj; |
5345 | BFD_ASSERT (dynobj != NULL); | |
5346 | ||
5347 | if (elf_hash_table (info)->dynamic_sections_created) | |
5348 | { | |
5349 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 5350 | if (info->executable) |
252b5132 RH |
5351 | { |
5352 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
5353 | BFD_ASSERT (s != NULL); | |
eea6121a | 5354 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
252b5132 RH |
5355 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
5356 | } | |
5357 | } | |
5e681ec4 PB |
5358 | |
5359 | /* Set up .got offsets for local syms, and space for local dynamic | |
5360 | relocs. */ | |
5361 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
252b5132 | 5362 | { |
5e681ec4 PB |
5363 | bfd_signed_vma *local_got; |
5364 | bfd_signed_vma *end_local_got; | |
5365 | char *local_tls_type; | |
5366 | bfd_size_type locsymcount; | |
5367 | Elf_Internal_Shdr *symtab_hdr; | |
5368 | asection *srel; | |
5369 | ||
5370 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
5371 | continue; | |
5372 | ||
5373 | for (s = ibfd->sections; s != NULL; s = s->next) | |
5374 | { | |
5375 | struct elf32_arm_relocs_copied *p; | |
5376 | ||
5377 | for (p = *((struct elf32_arm_relocs_copied **) | |
5378 | &elf_section_data (s)->local_dynrel); | |
5379 | p != NULL; | |
5380 | p = p->next) | |
5381 | { | |
5382 | if (!bfd_is_abs_section (p->section) | |
5383 | && bfd_is_abs_section (p->section->output_section)) | |
5384 | { | |
5385 | /* Input section has been discarded, either because | |
5386 | it is a copy of a linkonce section or due to | |
5387 | linker script /DISCARD/, so we'll be discarding | |
5388 | the relocs too. */ | |
5389 | } | |
5390 | else if (p->count != 0) | |
5391 | { | |
5392 | srel = elf_section_data (p->section)->sreloc; | |
eea6121a | 5393 | srel->size += p->count * sizeof (Elf32_External_Rel); |
5e681ec4 PB |
5394 | if ((p->section->output_section->flags & SEC_READONLY) != 0) |
5395 | info->flags |= DF_TEXTREL; | |
5396 | } | |
5397 | } | |
5398 | } | |
5399 | ||
5400 | local_got = elf_local_got_refcounts (ibfd); | |
5401 | if (!local_got) | |
5402 | continue; | |
5403 | ||
5404 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5405 | locsymcount = symtab_hdr->sh_info; | |
5406 | end_local_got = local_got + locsymcount; | |
ba93b8ac | 5407 | local_tls_type = elf32_arm_local_got_tls_type (ibfd); |
5e681ec4 PB |
5408 | s = htab->sgot; |
5409 | srel = htab->srelgot; | |
5410 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) | |
5411 | { | |
5412 | if (*local_got > 0) | |
5413 | { | |
eea6121a | 5414 | *local_got = s->size; |
ba93b8ac DJ |
5415 | if (*local_tls_type & GOT_TLS_GD) |
5416 | /* TLS_GD relocs need an 8-byte structure in the GOT. */ | |
5417 | s->size += 8; | |
5418 | if (*local_tls_type & GOT_TLS_IE) | |
5419 | s->size += 4; | |
5420 | if (*local_tls_type == GOT_NORMAL) | |
5421 | s->size += 4; | |
5422 | ||
5423 | if (info->shared || *local_tls_type == GOT_TLS_GD) | |
eea6121a | 5424 | srel->size += sizeof (Elf32_External_Rel); |
5e681ec4 PB |
5425 | } |
5426 | else | |
5427 | *local_got = (bfd_vma) -1; | |
5428 | } | |
252b5132 RH |
5429 | } |
5430 | ||
ba93b8ac DJ |
5431 | if (htab->tls_ldm_got.refcount > 0) |
5432 | { | |
5433 | /* Allocate two GOT entries and one dynamic relocation (if necessary) | |
5434 | for R_ARM_TLS_LDM32 relocations. */ | |
5435 | htab->tls_ldm_got.offset = htab->sgot->size; | |
5436 | htab->sgot->size += 8; | |
5437 | if (info->shared) | |
5438 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
5439 | } | |
5440 | else | |
5441 | htab->tls_ldm_got.offset = -1; | |
5442 | ||
5e681ec4 PB |
5443 | /* Allocate global sym .plt and .got entries, and space for global |
5444 | sym dynamic relocs. */ | |
57e8b36a | 5445 | elf_link_hash_traverse (& htab->root, allocate_dynrelocs, info); |
252b5132 RH |
5446 | |
5447 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
5448 | determined the sizes of the various dynamic sections. Allocate | |
5449 | memory for them. */ | |
b34976b6 AM |
5450 | plt = FALSE; |
5451 | relocs = FALSE; | |
252b5132 RH |
5452 | for (s = dynobj->sections; s != NULL; s = s->next) |
5453 | { | |
5454 | const char * name; | |
b34976b6 | 5455 | bfd_boolean strip; |
252b5132 RH |
5456 | |
5457 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
5458 | continue; | |
5459 | ||
5460 | /* It's OK to base decisions on the section name, because none | |
5461 | of the dynobj section names depend upon the input files. */ | |
5462 | name = bfd_get_section_name (dynobj, s); | |
5463 | ||
b34976b6 | 5464 | strip = FALSE; |
252b5132 | 5465 | |
24a1ba0f | 5466 | if (strcmp (name, ".plt") == 0) |
252b5132 | 5467 | { |
eea6121a | 5468 | if (s->size == 0) |
252b5132 RH |
5469 | { |
5470 | /* Strip this section if we don't need it; see the | |
5471 | comment below. */ | |
b34976b6 | 5472 | strip = TRUE; |
252b5132 RH |
5473 | } |
5474 | else | |
5475 | { | |
5476 | /* Remember whether there is a PLT. */ | |
b34976b6 | 5477 | plt = TRUE; |
252b5132 RH |
5478 | } |
5479 | } | |
5480 | else if (strncmp (name, ".rel", 4) == 0) | |
5481 | { | |
eea6121a | 5482 | if (s->size == 0) |
252b5132 RH |
5483 | { |
5484 | /* If we don't need this section, strip it from the | |
5485 | output file. This is mostly to handle .rel.bss and | |
5486 | .rel.plt. We must create both sections in | |
5487 | create_dynamic_sections, because they must be created | |
5488 | before the linker maps input sections to output | |
5489 | sections. The linker does that before | |
5490 | adjust_dynamic_symbol is called, and it is that | |
5491 | function which decides whether anything needs to go | |
5492 | into these sections. */ | |
b34976b6 | 5493 | strip = TRUE; |
252b5132 RH |
5494 | } |
5495 | else | |
5496 | { | |
252b5132 RH |
5497 | /* Remember whether there are any reloc sections other |
5498 | than .rel.plt. */ | |
5499 | if (strcmp (name, ".rel.plt") != 0) | |
b34976b6 | 5500 | relocs = TRUE; |
252b5132 RH |
5501 | |
5502 | /* We use the reloc_count field as a counter if we need | |
5503 | to copy relocs into the output file. */ | |
5504 | s->reloc_count = 0; | |
5505 | } | |
5506 | } | |
5507 | else if (strncmp (name, ".got", 4) != 0) | |
5508 | { | |
5509 | /* It's not one of our sections, so don't allocate space. */ | |
5510 | continue; | |
5511 | } | |
5512 | ||
5513 | if (strip) | |
5514 | { | |
8423293d | 5515 | s->flags |= SEC_EXCLUDE; |
252b5132 RH |
5516 | continue; |
5517 | } | |
5518 | ||
5519 | /* Allocate memory for the section contents. */ | |
eea6121a AM |
5520 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
5521 | if (s->contents == NULL && s->size != 0) | |
b34976b6 | 5522 | return FALSE; |
252b5132 RH |
5523 | } |
5524 | ||
5525 | if (elf_hash_table (info)->dynamic_sections_created) | |
5526 | { | |
5527 | /* Add some entries to the .dynamic section. We fill in the | |
5528 | values later, in elf32_arm_finish_dynamic_sections, but we | |
5529 | must add the entries now so that we get the correct size for | |
5530 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
5531 | dynamic linker and used by the debugger. */ | |
dc810e39 | 5532 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 5533 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 AM |
5534 | |
5535 | if (!info->shared) | |
252b5132 | 5536 | { |
dc810e39 | 5537 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 5538 | return FALSE; |
252b5132 RH |
5539 | } |
5540 | ||
5541 | if (plt) | |
5542 | { | |
dc810e39 AM |
5543 | if ( !add_dynamic_entry (DT_PLTGOT, 0) |
5544 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
5545 | || !add_dynamic_entry (DT_PLTREL, DT_REL) | |
5546 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 5547 | return FALSE; |
252b5132 RH |
5548 | } |
5549 | ||
5550 | if (relocs) | |
5551 | { | |
dc810e39 AM |
5552 | if ( !add_dynamic_entry (DT_REL, 0) |
5553 | || !add_dynamic_entry (DT_RELSZ, 0) | |
5554 | || !add_dynamic_entry (DT_RELENT, sizeof (Elf32_External_Rel))) | |
b34976b6 | 5555 | return FALSE; |
252b5132 RH |
5556 | } |
5557 | ||
08d1f311 DJ |
5558 | /* If any dynamic relocs apply to a read-only section, |
5559 | then we need a DT_TEXTREL entry. */ | |
5560 | if ((info->flags & DF_TEXTREL) == 0) | |
5561 | elf_link_hash_traverse (&htab->root, elf32_arm_readonly_dynrelocs, | |
5562 | (PTR) info); | |
5563 | ||
99e4ae17 | 5564 | if ((info->flags & DF_TEXTREL) != 0) |
252b5132 | 5565 | { |
dc810e39 | 5566 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 5567 | return FALSE; |
d6cf2879 | 5568 | info->flags |= DF_TEXTREL; |
252b5132 RH |
5569 | } |
5570 | } | |
dc810e39 | 5571 | #undef add_synamic_entry |
252b5132 | 5572 | |
b34976b6 | 5573 | return TRUE; |
252b5132 RH |
5574 | } |
5575 | ||
252b5132 RH |
5576 | /* Finish up dynamic symbol handling. We set the contents of various |
5577 | dynamic sections here. */ | |
5578 | ||
b34976b6 | 5579 | static bfd_boolean |
57e8b36a NC |
5580 | elf32_arm_finish_dynamic_symbol (bfd * output_bfd, struct bfd_link_info * info, |
5581 | struct elf_link_hash_entry * h, Elf_Internal_Sym * sym) | |
252b5132 RH |
5582 | { |
5583 | bfd * dynobj; | |
e5a52504 | 5584 | struct elf32_arm_link_hash_table *htab; |
b7693d02 | 5585 | struct elf32_arm_link_hash_entry *eh; |
252b5132 RH |
5586 | |
5587 | dynobj = elf_hash_table (info)->dynobj; | |
e5a52504 | 5588 | htab = elf32_arm_hash_table (info); |
b7693d02 | 5589 | eh = (struct elf32_arm_link_hash_entry *) h; |
252b5132 RH |
5590 | |
5591 | if (h->plt.offset != (bfd_vma) -1) | |
5592 | { | |
5593 | asection * splt; | |
252b5132 | 5594 | asection * srel; |
e5a52504 | 5595 | bfd_byte *loc; |
24a1ba0f | 5596 | bfd_vma plt_index; |
947216bf | 5597 | Elf_Internal_Rela rel; |
252b5132 RH |
5598 | |
5599 | /* This symbol has an entry in the procedure linkage table. Set | |
5600 | it up. */ | |
5601 | ||
5602 | BFD_ASSERT (h->dynindx != -1); | |
5603 | ||
5604 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
252b5132 | 5605 | srel = bfd_get_section_by_name (dynobj, ".rel.plt"); |
e5a52504 | 5606 | BFD_ASSERT (splt != NULL && srel != NULL); |
252b5132 | 5607 | |
e5a52504 MM |
5608 | /* Fill in the entry in the procedure linkage table. */ |
5609 | if (htab->symbian_p) | |
5610 | { | |
5611 | unsigned i; | |
5612 | for (i = 0; i < htab->plt_entry_size / 4; ++i) | |
5613 | bfd_put_32 (output_bfd, | |
5614 | elf32_arm_symbian_plt_entry[i], | |
5615 | splt->contents + h->plt.offset + 4 * i); | |
5616 | ||
5617 | /* Fill in the entry in the .rel.plt section. */ | |
2a1b9a48 MM |
5618 | rel.r_offset = (splt->output_section->vma |
5619 | + splt->output_offset | |
e5a52504 MM |
5620 | + h->plt.offset + 4 * (i - 1)); |
5621 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT); | |
b7693d02 DJ |
5622 | |
5623 | /* Get the index in the procedure linkage table which | |
5624 | corresponds to this symbol. This is the index of this symbol | |
5625 | in all the symbols for which we are making plt entries. The | |
5626 | first entry in the procedure linkage table is reserved. */ | |
5627 | plt_index = ((h->plt.offset - htab->plt_header_size) | |
5628 | / htab->plt_entry_size); | |
e5a52504 MM |
5629 | } |
5630 | else | |
5631 | { | |
5632 | bfd_vma got_offset; | |
5633 | bfd_vma got_displacement; | |
5634 | asection * sgot; | |
5635 | ||
5636 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
5637 | BFD_ASSERT (sgot != NULL); | |
5638 | ||
b7693d02 DJ |
5639 | /* Get the offset into the .got.plt table of the entry that |
5640 | corresponds to this function. */ | |
5641 | got_offset = eh->plt_got_offset; | |
5642 | ||
5643 | /* Get the index in the procedure linkage table which | |
5644 | corresponds to this symbol. This is the index of this symbol | |
5645 | in all the symbols for which we are making plt entries. The | |
5646 | first three entries in .got.plt are reserved; after that | |
5647 | symbols appear in the same order as in .plt. */ | |
5648 | plt_index = (got_offset - 12) / 4; | |
e5a52504 MM |
5649 | |
5650 | /* Calculate the displacement between the PLT slot and the | |
b7693d02 DJ |
5651 | entry in the GOT. The eight-byte offset accounts for the |
5652 | value produced by adding to pc in the first instruction | |
5653 | of the PLT stub. */ | |
e5a52504 MM |
5654 | got_displacement = (sgot->output_section->vma |
5655 | + sgot->output_offset | |
5656 | + got_offset | |
5657 | - splt->output_section->vma | |
5658 | - splt->output_offset | |
5659 | - h->plt.offset | |
5660 | - 8); | |
5e681ec4 | 5661 | |
e5a52504 | 5662 | BFD_ASSERT ((got_displacement & 0xf0000000) == 0); |
5e681ec4 | 5663 | |
33bfe774 | 5664 | if (!htab->use_blx && eh->plt_thumb_refcount > 0) |
b7693d02 DJ |
5665 | { |
5666 | bfd_put_16 (output_bfd, elf32_arm_plt_thumb_stub[0], | |
5667 | splt->contents + h->plt.offset - 4); | |
5668 | bfd_put_16 (output_bfd, elf32_arm_plt_thumb_stub[1], | |
5669 | splt->contents + h->plt.offset - 2); | |
5670 | } | |
5671 | ||
e5a52504 MM |
5672 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[0] | ((got_displacement & 0x0ff00000) >> 20), |
5673 | splt->contents + h->plt.offset + 0); | |
5674 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[1] | ((got_displacement & 0x000ff000) >> 12), | |
5675 | splt->contents + h->plt.offset + 4); | |
5676 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[2] | (got_displacement & 0x00000fff), | |
5677 | splt->contents + h->plt.offset + 8); | |
5e681ec4 | 5678 | #ifdef FOUR_WORD_PLT |
e5a52504 MM |
5679 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[3], |
5680 | splt->contents + h->plt.offset + 12); | |
5e681ec4 | 5681 | #endif |
252b5132 | 5682 | |
e5a52504 MM |
5683 | /* Fill in the entry in the global offset table. */ |
5684 | bfd_put_32 (output_bfd, | |
5685 | (splt->output_section->vma | |
5686 | + splt->output_offset), | |
5687 | sgot->contents + got_offset); | |
5688 | ||
5689 | /* Fill in the entry in the .rel.plt section. */ | |
5690 | rel.r_offset = (sgot->output_section->vma | |
5691 | + sgot->output_offset | |
5692 | + got_offset); | |
5693 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_JUMP_SLOT); | |
5694 | } | |
57e8b36a | 5695 | |
947216bf AM |
5696 | loc = srel->contents + plt_index * sizeof (Elf32_External_Rel); |
5697 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
252b5132 | 5698 | |
f5385ebf | 5699 | if (!h->def_regular) |
252b5132 RH |
5700 | { |
5701 | /* Mark the symbol as undefined, rather than as defined in | |
5702 | the .plt section. Leave the value alone. */ | |
5703 | sym->st_shndx = SHN_UNDEF; | |
d982ba73 PB |
5704 | /* If the symbol is weak, we do need to clear the value. |
5705 | Otherwise, the PLT entry would provide a definition for | |
5706 | the symbol even if the symbol wasn't defined anywhere, | |
5707 | and so the symbol would never be NULL. */ | |
f5385ebf | 5708 | if (!h->ref_regular_nonweak) |
d982ba73 | 5709 | sym->st_value = 0; |
252b5132 RH |
5710 | } |
5711 | } | |
5712 | ||
ba93b8ac DJ |
5713 | if (h->got.offset != (bfd_vma) -1 |
5714 | && (elf32_arm_hash_entry (h)->tls_type & GOT_TLS_GD) == 0 | |
5715 | && (elf32_arm_hash_entry (h)->tls_type & GOT_TLS_IE) == 0) | |
252b5132 RH |
5716 | { |
5717 | asection * sgot; | |
5718 | asection * srel; | |
947216bf AM |
5719 | Elf_Internal_Rela rel; |
5720 | bfd_byte *loc; | |
252b5132 RH |
5721 | |
5722 | /* This symbol has an entry in the global offset table. Set it | |
5723 | up. */ | |
252b5132 RH |
5724 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
5725 | srel = bfd_get_section_by_name (dynobj, ".rel.got"); | |
5726 | BFD_ASSERT (sgot != NULL && srel != NULL); | |
5727 | ||
5728 | rel.r_offset = (sgot->output_section->vma | |
5729 | + sgot->output_offset | |
dc810e39 | 5730 | + (h->got.offset &~ (bfd_vma) 1)); |
252b5132 | 5731 | |
5e681ec4 PB |
5732 | /* If this is a static link, or it is a -Bsymbolic link and the |
5733 | symbol is defined locally or was forced to be local because | |
5734 | of a version file, we just want to emit a RELATIVE reloc. | |
5735 | The entry in the global offset table will already have been | |
5736 | initialized in the relocate_section function. */ | |
252b5132 | 5737 | if (info->shared |
5e681ec4 PB |
5738 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
5739 | { | |
5740 | BFD_ASSERT((h->got.offset & 1) != 0); | |
5741 | rel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE); | |
5742 | } | |
252b5132 RH |
5743 | else |
5744 | { | |
5e681ec4 | 5745 | BFD_ASSERT((h->got.offset & 1) == 0); |
252b5132 RH |
5746 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
5747 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT); | |
5748 | } | |
5749 | ||
947216bf AM |
5750 | loc = srel->contents + srel->reloc_count++ * sizeof (Elf32_External_Rel); |
5751 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
252b5132 RH |
5752 | } |
5753 | ||
f5385ebf | 5754 | if (h->needs_copy) |
252b5132 RH |
5755 | { |
5756 | asection * s; | |
947216bf AM |
5757 | Elf_Internal_Rela rel; |
5758 | bfd_byte *loc; | |
252b5132 RH |
5759 | |
5760 | /* This symbol needs a copy reloc. Set it up. */ | |
252b5132 RH |
5761 | BFD_ASSERT (h->dynindx != -1 |
5762 | && (h->root.type == bfd_link_hash_defined | |
5763 | || h->root.type == bfd_link_hash_defweak)); | |
5764 | ||
5765 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
5766 | ".rel.bss"); | |
5767 | BFD_ASSERT (s != NULL); | |
5768 | ||
5769 | rel.r_offset = (h->root.u.def.value | |
5770 | + h->root.u.def.section->output_section->vma | |
5771 | + h->root.u.def.section->output_offset); | |
5772 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_COPY); | |
947216bf AM |
5773 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rel); |
5774 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
252b5132 RH |
5775 | } |
5776 | ||
5777 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
5778 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
5779 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
5780 | sym->st_shndx = SHN_ABS; | |
5781 | ||
b34976b6 | 5782 | return TRUE; |
252b5132 RH |
5783 | } |
5784 | ||
5785 | /* Finish up the dynamic sections. */ | |
5786 | ||
b34976b6 | 5787 | static bfd_boolean |
57e8b36a | 5788 | elf32_arm_finish_dynamic_sections (bfd * output_bfd, struct bfd_link_info * info) |
252b5132 RH |
5789 | { |
5790 | bfd * dynobj; | |
5791 | asection * sgot; | |
5792 | asection * sdyn; | |
5793 | ||
5794 | dynobj = elf_hash_table (info)->dynobj; | |
5795 | ||
5796 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
229fcec5 | 5797 | BFD_ASSERT (elf32_arm_hash_table (info)->symbian_p || sgot != NULL); |
252b5132 RH |
5798 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
5799 | ||
5800 | if (elf_hash_table (info)->dynamic_sections_created) | |
5801 | { | |
5802 | asection *splt; | |
5803 | Elf32_External_Dyn *dyncon, *dynconend; | |
229fcec5 | 5804 | struct elf32_arm_link_hash_table *htab; |
252b5132 | 5805 | |
229fcec5 | 5806 | htab = elf32_arm_hash_table (info); |
252b5132 | 5807 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
24a1ba0f | 5808 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
252b5132 RH |
5809 | |
5810 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 5811 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
9b485d32 | 5812 | |
252b5132 RH |
5813 | for (; dyncon < dynconend; dyncon++) |
5814 | { | |
5815 | Elf_Internal_Dyn dyn; | |
5816 | const char * name; | |
5817 | asection * s; | |
5818 | ||
5819 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
5820 | ||
5821 | switch (dyn.d_tag) | |
5822 | { | |
229fcec5 MM |
5823 | unsigned int type; |
5824 | ||
252b5132 RH |
5825 | default: |
5826 | break; | |
5827 | ||
229fcec5 MM |
5828 | case DT_HASH: |
5829 | name = ".hash"; | |
5830 | goto get_vma_if_bpabi; | |
5831 | case DT_STRTAB: | |
5832 | name = ".dynstr"; | |
5833 | goto get_vma_if_bpabi; | |
5834 | case DT_SYMTAB: | |
5835 | name = ".dynsym"; | |
5836 | goto get_vma_if_bpabi; | |
c0042f5d MM |
5837 | case DT_VERSYM: |
5838 | name = ".gnu.version"; | |
5839 | goto get_vma_if_bpabi; | |
5840 | case DT_VERDEF: | |
5841 | name = ".gnu.version_d"; | |
5842 | goto get_vma_if_bpabi; | |
5843 | case DT_VERNEED: | |
5844 | name = ".gnu.version_r"; | |
5845 | goto get_vma_if_bpabi; | |
5846 | ||
252b5132 RH |
5847 | case DT_PLTGOT: |
5848 | name = ".got"; | |
5849 | goto get_vma; | |
5850 | case DT_JMPREL: | |
5851 | name = ".rel.plt"; | |
5852 | get_vma: | |
5853 | s = bfd_get_section_by_name (output_bfd, name); | |
5854 | BFD_ASSERT (s != NULL); | |
229fcec5 MM |
5855 | if (!htab->symbian_p) |
5856 | dyn.d_un.d_ptr = s->vma; | |
5857 | else | |
5858 | /* In the BPABI, tags in the PT_DYNAMIC section point | |
5859 | at the file offset, not the memory address, for the | |
5860 | convenience of the post linker. */ | |
5861 | dyn.d_un.d_ptr = s->filepos; | |
252b5132 RH |
5862 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
5863 | break; | |
5864 | ||
229fcec5 MM |
5865 | get_vma_if_bpabi: |
5866 | if (htab->symbian_p) | |
5867 | goto get_vma; | |
5868 | break; | |
5869 | ||
252b5132 RH |
5870 | case DT_PLTRELSZ: |
5871 | s = bfd_get_section_by_name (output_bfd, ".rel.plt"); | |
5872 | BFD_ASSERT (s != NULL); | |
eea6121a | 5873 | dyn.d_un.d_val = s->size; |
252b5132 RH |
5874 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
5875 | break; | |
229fcec5 | 5876 | |
252b5132 | 5877 | case DT_RELSZ: |
229fcec5 MM |
5878 | if (!htab->symbian_p) |
5879 | { | |
5880 | /* My reading of the SVR4 ABI indicates that the | |
5881 | procedure linkage table relocs (DT_JMPREL) should be | |
5882 | included in the overall relocs (DT_REL). This is | |
5883 | what Solaris does. However, UnixWare can not handle | |
5884 | that case. Therefore, we override the DT_RELSZ entry | |
5885 | here to make it not include the JMPREL relocs. Since | |
5886 | the linker script arranges for .rel.plt to follow all | |
5887 | other relocation sections, we don't have to worry | |
5888 | about changing the DT_REL entry. */ | |
5889 | s = bfd_get_section_by_name (output_bfd, ".rel.plt"); | |
5890 | if (s != NULL) | |
5891 | dyn.d_un.d_val -= s->size; | |
5892 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
5893 | break; | |
5894 | } | |
5895 | /* Fall through */ | |
5896 | ||
5897 | case DT_REL: | |
5898 | case DT_RELA: | |
5899 | case DT_RELASZ: | |
5900 | /* In the BPABI, the DT_REL tag must point at the file | |
5901 | offset, not the VMA, of the first relocation | |
5902 | section. So, we use code similar to that in | |
5903 | elflink.c, but do not check for SHF_ALLOC on the | |
5904 | relcoation section, since relocations sections are | |
5905 | never allocated under the BPABI. The comments above | |
5906 | about Unixware notwithstanding, we include all of the | |
5907 | relocations here. */ | |
5908 | if (htab->symbian_p) | |
5909 | { | |
5910 | unsigned int i; | |
5911 | type = ((dyn.d_tag == DT_REL || dyn.d_tag == DT_RELSZ) | |
5912 | ? SHT_REL : SHT_RELA); | |
5913 | dyn.d_un.d_val = 0; | |
5914 | for (i = 1; i < elf_numsections (output_bfd); i++) | |
5915 | { | |
5916 | Elf_Internal_Shdr *hdr | |
5917 | = elf_elfsections (output_bfd)[i]; | |
5918 | if (hdr->sh_type == type) | |
5919 | { | |
5920 | if (dyn.d_tag == DT_RELSZ | |
5921 | || dyn.d_tag == DT_RELASZ) | |
5922 | dyn.d_un.d_val += hdr->sh_size; | |
de52dba4 AM |
5923 | else if ((ufile_ptr) hdr->sh_offset |
5924 | <= dyn.d_un.d_val - 1) | |
229fcec5 MM |
5925 | dyn.d_un.d_val = hdr->sh_offset; |
5926 | } | |
5927 | } | |
5928 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
5929 | } | |
252b5132 | 5930 | break; |
88f7bcd5 NC |
5931 | |
5932 | /* Set the bottom bit of DT_INIT/FINI if the | |
5933 | corresponding function is Thumb. */ | |
5934 | case DT_INIT: | |
5935 | name = info->init_function; | |
5936 | goto get_sym; | |
5937 | case DT_FINI: | |
5938 | name = info->fini_function; | |
5939 | get_sym: | |
5940 | /* If it wasn't set by elf_bfd_final_link | |
4cc11e76 | 5941 | then there is nothing to adjust. */ |
88f7bcd5 NC |
5942 | if (dyn.d_un.d_val != 0) |
5943 | { | |
5944 | struct elf_link_hash_entry * eh; | |
5945 | ||
5946 | eh = elf_link_hash_lookup (elf_hash_table (info), name, | |
b34976b6 | 5947 | FALSE, FALSE, TRUE); |
88f7bcd5 NC |
5948 | if (eh != (struct elf_link_hash_entry *) NULL |
5949 | && ELF_ST_TYPE (eh->type) == STT_ARM_TFUNC) | |
5950 | { | |
5951 | dyn.d_un.d_val |= 1; | |
b34976b6 | 5952 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
88f7bcd5 NC |
5953 | } |
5954 | } | |
5955 | break; | |
252b5132 RH |
5956 | } |
5957 | } | |
5958 | ||
24a1ba0f | 5959 | /* Fill in the first entry in the procedure linkage table. */ |
e5a52504 | 5960 | if (splt->size > 0 && elf32_arm_hash_table (info)->plt_header_size) |
f7a74f8c | 5961 | { |
5e681ec4 PB |
5962 | bfd_vma got_displacement; |
5963 | ||
5964 | /* Calculate the displacement between the PLT slot and &GOT[0]. */ | |
5965 | got_displacement = (sgot->output_section->vma | |
5966 | + sgot->output_offset | |
5967 | - splt->output_section->vma | |
5968 | - splt->output_offset | |
5969 | - 16); | |
5970 | ||
f7a74f8c NC |
5971 | bfd_put_32 (output_bfd, elf32_arm_plt0_entry[0], splt->contents + 0); |
5972 | bfd_put_32 (output_bfd, elf32_arm_plt0_entry[1], splt->contents + 4); | |
5973 | bfd_put_32 (output_bfd, elf32_arm_plt0_entry[2], splt->contents + 8); | |
5974 | bfd_put_32 (output_bfd, elf32_arm_plt0_entry[3], splt->contents + 12); | |
5e681ec4 PB |
5975 | #ifdef FOUR_WORD_PLT |
5976 | /* The displacement value goes in the otherwise-unused last word of | |
5977 | the second entry. */ | |
5978 | bfd_put_32 (output_bfd, got_displacement, splt->contents + 28); | |
5979 | #else | |
5980 | bfd_put_32 (output_bfd, got_displacement, splt->contents + 16); | |
5981 | #endif | |
f7a74f8c | 5982 | } |
252b5132 RH |
5983 | |
5984 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
5985 | really seem like the right value. */ | |
5986 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
5987 | } | |
5988 | ||
5989 | /* Fill in the first three entries in the global offset table. */ | |
229fcec5 | 5990 | if (sgot) |
252b5132 | 5991 | { |
229fcec5 MM |
5992 | if (sgot->size > 0) |
5993 | { | |
5994 | if (sdyn == NULL) | |
5995 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
5996 | else | |
5997 | bfd_put_32 (output_bfd, | |
5998 | sdyn->output_section->vma + sdyn->output_offset, | |
5999 | sgot->contents); | |
6000 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
6001 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
6002 | } | |
252b5132 | 6003 | |
229fcec5 MM |
6004 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
6005 | } | |
252b5132 | 6006 | |
b34976b6 | 6007 | return TRUE; |
252b5132 RH |
6008 | } |
6009 | ||
ba96a88f | 6010 | static void |
57e8b36a | 6011 | elf32_arm_post_process_headers (bfd * abfd, struct bfd_link_info * link_info ATTRIBUTE_UNUSED) |
ba96a88f | 6012 | { |
9b485d32 | 6013 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ |
e489d0ae | 6014 | struct elf32_arm_link_hash_table *globals; |
ba96a88f NC |
6015 | |
6016 | i_ehdrp = elf_elfheader (abfd); | |
6017 | ||
94a3258f PB |
6018 | if (EF_ARM_EABI_VERSION (i_ehdrp->e_flags) == EF_ARM_EABI_UNKNOWN) |
6019 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_ARM; | |
6020 | else | |
6021 | i_ehdrp->e_ident[EI_OSABI] = 0; | |
ba96a88f | 6022 | i_ehdrp->e_ident[EI_ABIVERSION] = ARM_ELF_ABI_VERSION; |
e489d0ae | 6023 | |
93204d3a PB |
6024 | if (link_info) |
6025 | { | |
6026 | globals = elf32_arm_hash_table (link_info); | |
6027 | if (globals->byteswap_code) | |
6028 | i_ehdrp->e_flags |= EF_ARM_BE8; | |
6029 | } | |
ba96a88f NC |
6030 | } |
6031 | ||
99e4ae17 | 6032 | static enum elf_reloc_type_class |
57e8b36a | 6033 | elf32_arm_reloc_type_class (const Elf_Internal_Rela *rela) |
99e4ae17 | 6034 | { |
f51e552e | 6035 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
99e4ae17 AJ |
6036 | { |
6037 | case R_ARM_RELATIVE: | |
6038 | return reloc_class_relative; | |
6039 | case R_ARM_JUMP_SLOT: | |
6040 | return reloc_class_plt; | |
6041 | case R_ARM_COPY: | |
6042 | return reloc_class_copy; | |
6043 | default: | |
6044 | return reloc_class_normal; | |
6045 | } | |
6046 | } | |
6047 | ||
e16bb312 NC |
6048 | /* Set the right machine number for an Arm ELF file. */ |
6049 | ||
6050 | static bfd_boolean | |
57e8b36a | 6051 | elf32_arm_section_flags (flagword *flags, const Elf_Internal_Shdr *hdr) |
e16bb312 NC |
6052 | { |
6053 | if (hdr->sh_type == SHT_NOTE) | |
6054 | *flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_CONTENTS; | |
6055 | ||
6056 | return TRUE; | |
6057 | } | |
6058 | ||
e489d0ae | 6059 | static void |
57e8b36a | 6060 | elf32_arm_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) |
e16bb312 | 6061 | { |
5a6c6817 | 6062 | bfd_arm_update_notes (abfd, ARM_NOTE_SECTION); |
e16bb312 NC |
6063 | } |
6064 | ||
40a18ebd NC |
6065 | /* Return TRUE if this is an unwinding table entry. */ |
6066 | ||
6067 | static bfd_boolean | |
6068 | is_arm_elf_unwind_section_name (bfd * abfd ATTRIBUTE_UNUSED, const char * name) | |
6069 | { | |
6070 | size_t len1, len2; | |
6071 | ||
6072 | len1 = sizeof (ELF_STRING_ARM_unwind) - 1; | |
6073 | len2 = sizeof (ELF_STRING_ARM_unwind_once) - 1; | |
6074 | return (strncmp (name, ELF_STRING_ARM_unwind, len1) == 0 | |
6075 | || strncmp (name, ELF_STRING_ARM_unwind_once, len2) == 0); | |
6076 | } | |
6077 | ||
6078 | ||
6079 | /* Set the type and flags for an ARM section. We do this by | |
6080 | the section name, which is a hack, but ought to work. */ | |
6081 | ||
6082 | static bfd_boolean | |
6083 | elf32_arm_fake_sections (bfd * abfd, Elf_Internal_Shdr * hdr, asection * sec) | |
6084 | { | |
6085 | const char * name; | |
6086 | ||
6087 | name = bfd_get_section_name (abfd, sec); | |
6088 | ||
6089 | if (is_arm_elf_unwind_section_name (abfd, name)) | |
6090 | { | |
6091 | hdr->sh_type = SHT_ARM_EXIDX; | |
6092 | hdr->sh_flags |= SHF_LINK_ORDER; | |
6093 | } | |
6094 | return TRUE; | |
6095 | } | |
6096 | ||
6dc132d9 L |
6097 | /* Handle an ARM specific section when reading an object file. This is |
6098 | called when bfd_section_from_shdr finds a section with an unknown | |
6099 | type. */ | |
40a18ebd NC |
6100 | |
6101 | static bfd_boolean | |
6102 | elf32_arm_section_from_shdr (bfd *abfd, | |
6103 | Elf_Internal_Shdr * hdr, | |
6dc132d9 L |
6104 | const char *name, |
6105 | int shindex) | |
40a18ebd NC |
6106 | { |
6107 | /* There ought to be a place to keep ELF backend specific flags, but | |
6108 | at the moment there isn't one. We just keep track of the | |
6109 | sections by their name, instead. Fortunately, the ABI gives | |
6110 | names for all the ARM specific sections, so we will probably get | |
6111 | away with this. */ | |
6112 | switch (hdr->sh_type) | |
6113 | { | |
6114 | case SHT_ARM_EXIDX: | |
6115 | break; | |
6116 | ||
6117 | default: | |
6118 | return FALSE; | |
6119 | } | |
6120 | ||
6dc132d9 | 6121 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
40a18ebd NC |
6122 | return FALSE; |
6123 | ||
6124 | return TRUE; | |
6125 | } | |
e489d0ae PB |
6126 | |
6127 | /* Called for each symbol. Builds a section map based on mapping symbols. | |
6128 | Does not alter any of the symbols. */ | |
6129 | ||
6130 | static bfd_boolean | |
6131 | elf32_arm_output_symbol_hook (struct bfd_link_info *info, | |
6132 | const char *name, | |
6133 | Elf_Internal_Sym *elfsym, | |
6134 | asection *input_sec, | |
6135 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
6136 | { | |
6137 | int mapcount; | |
6138 | elf32_arm_section_map *map; | |
6139 | struct elf32_arm_link_hash_table *globals; | |
6140 | ||
6141 | /* Only do this on final link. */ | |
6142 | if (info->relocatable) | |
6143 | return TRUE; | |
6144 | ||
6145 | /* Only build a map if we need to byteswap code. */ | |
6146 | globals = elf32_arm_hash_table (info); | |
6147 | if (!globals->byteswap_code) | |
6148 | return TRUE; | |
6149 | ||
6150 | /* We only want mapping symbols. */ | |
05ea83ed | 6151 | if (! bfd_is_arm_mapping_symbol_name (name)) |
e489d0ae PB |
6152 | return TRUE; |
6153 | ||
6154 | mapcount = ++(elf32_arm_section_data (input_sec)->mapcount); | |
6155 | map = elf32_arm_section_data (input_sec)->map; | |
6156 | /* TODO: This may be inefficient, but we probably don't usually have many | |
6157 | mapping symbols per section. */ | |
6158 | map = bfd_realloc (map, mapcount * sizeof (elf32_arm_section_map)); | |
6159 | elf32_arm_section_data (input_sec)->map = map; | |
57e8b36a | 6160 | |
e489d0ae PB |
6161 | map[mapcount - 1].vma = elfsym->st_value; |
6162 | map[mapcount - 1].type = name[1]; | |
6163 | return TRUE; | |
6164 | } | |
6165 | ||
6166 | ||
6167 | /* Allocate target specific section data. */ | |
6168 | ||
6169 | static bfd_boolean | |
6170 | elf32_arm_new_section_hook (bfd *abfd, asection *sec) | |
6171 | { | |
6172 | struct _arm_elf_section_data *sdata; | |
6173 | bfd_size_type amt = sizeof (*sdata); | |
6174 | ||
6175 | sdata = bfd_zalloc (abfd, amt); | |
6176 | if (sdata == NULL) | |
6177 | return FALSE; | |
6178 | sec->used_by_bfd = sdata; | |
6179 | ||
6180 | return _bfd_elf_new_section_hook (abfd, sec); | |
6181 | } | |
6182 | ||
6183 | ||
6184 | /* Used to order a list of mapping symbols by address. */ | |
6185 | ||
6186 | static int | |
6187 | elf32_arm_compare_mapping (const void * a, const void * b) | |
6188 | { | |
6189 | return ((const elf32_arm_section_map *) a)->vma | |
6190 | > ((const elf32_arm_section_map *) b)->vma; | |
6191 | } | |
6192 | ||
6193 | ||
6194 | /* Do code byteswapping. Return FALSE afterwards so that the section is | |
6195 | written out as normal. */ | |
6196 | ||
6197 | static bfd_boolean | |
6198 | elf32_arm_write_section (bfd *output_bfd ATTRIBUTE_UNUSED, asection *sec, | |
6199 | bfd_byte *contents) | |
6200 | { | |
6201 | int mapcount; | |
6202 | elf32_arm_section_map *map; | |
6203 | bfd_vma ptr; | |
6204 | bfd_vma end; | |
6205 | bfd_vma offset; | |
6206 | bfd_byte tmp; | |
6207 | int i; | |
57e8b36a | 6208 | |
e489d0ae PB |
6209 | mapcount = elf32_arm_section_data (sec)->mapcount; |
6210 | map = elf32_arm_section_data (sec)->map; | |
6211 | ||
6212 | if (mapcount == 0) | |
6213 | return FALSE; | |
6214 | ||
6215 | qsort (map, mapcount, sizeof (elf32_arm_section_map), | |
6216 | elf32_arm_compare_mapping); | |
6217 | ||
6218 | offset = sec->output_section->vma + sec->output_offset; | |
6219 | ptr = map[0].vma - offset; | |
6220 | for (i = 0; i < mapcount; i++) | |
6221 | { | |
6222 | if (i == mapcount - 1) | |
eea6121a | 6223 | end = sec->size; |
e489d0ae PB |
6224 | else |
6225 | end = map[i + 1].vma - offset; | |
57e8b36a | 6226 | |
e489d0ae PB |
6227 | switch (map[i].type) |
6228 | { | |
6229 | case 'a': | |
6230 | /* Byte swap code words. */ | |
6231 | while (ptr + 3 < end) | |
6232 | { | |
6233 | tmp = contents[ptr]; | |
6234 | contents[ptr] = contents[ptr + 3]; | |
6235 | contents[ptr + 3] = tmp; | |
6236 | tmp = contents[ptr + 1]; | |
6237 | contents[ptr + 1] = contents[ptr + 2]; | |
6238 | contents[ptr + 2] = tmp; | |
6239 | ptr += 4; | |
6240 | } | |
6241 | break; | |
6242 | ||
6243 | case 't': | |
6244 | /* Byte swap code halfwords. */ | |
6245 | while (ptr + 1 < end) | |
6246 | { | |
6247 | tmp = contents[ptr]; | |
6248 | contents[ptr] = contents[ptr + 1]; | |
6249 | contents[ptr + 1] = tmp; | |
6250 | ptr += 2; | |
6251 | } | |
6252 | break; | |
6253 | ||
6254 | case 'd': | |
6255 | /* Leave data alone. */ | |
6256 | break; | |
6257 | } | |
6258 | ptr = end; | |
6259 | } | |
93204d3a | 6260 | free (map); |
e489d0ae PB |
6261 | return FALSE; |
6262 | } | |
6263 | ||
b7693d02 DJ |
6264 | /* Display STT_ARM_TFUNC symbols as functions. */ |
6265 | ||
6266 | static void | |
6267 | elf32_arm_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, | |
6268 | asymbol *asym) | |
6269 | { | |
6270 | elf_symbol_type *elfsym = (elf_symbol_type *) asym; | |
6271 | ||
6272 | if (ELF_ST_TYPE (elfsym->internal_elf_sym.st_info) == STT_ARM_TFUNC) | |
6273 | elfsym->symbol.flags |= BSF_FUNCTION; | |
6274 | } | |
6275 | ||
0beaef2b PB |
6276 | |
6277 | /* Mangle thumb function symbols as we read them in. */ | |
6278 | ||
6279 | static void | |
6280 | elf32_arm_swap_symbol_in (bfd * abfd, | |
6281 | const void *psrc, | |
6282 | const void *pshn, | |
6283 | Elf_Internal_Sym *dst) | |
6284 | { | |
6285 | bfd_elf32_swap_symbol_in (abfd, psrc, pshn, dst); | |
6286 | ||
6287 | /* New EABI objects mark thumb function symbols by setting the low bit of | |
6288 | the address. Turn these into STT_ARM_TFUNC. */ | |
6289 | if (ELF_ST_TYPE (dst->st_info) == STT_FUNC | |
6290 | && (dst->st_value & 1)) | |
6291 | { | |
6292 | dst->st_info = ELF_ST_INFO (ELF_ST_BIND (dst->st_info), STT_ARM_TFUNC); | |
6293 | dst->st_value &= ~(bfd_vma) 1; | |
6294 | } | |
6295 | } | |
6296 | ||
6297 | ||
6298 | /* Mangle thumb function symbols as we write them out. */ | |
6299 | ||
6300 | static void | |
6301 | elf32_arm_swap_symbol_out (bfd *abfd, | |
6302 | const Elf_Internal_Sym *src, | |
6303 | void *cdst, | |
6304 | void *shndx) | |
6305 | { | |
6306 | Elf_Internal_Sym newsym; | |
6307 | ||
6308 | /* We convert STT_ARM_TFUNC symbols into STT_FUNC with the low bit | |
6309 | of the address set, as per the new EABI. We do this unconditionally | |
6310 | because objcopy does not set the elf header flags until after | |
6311 | it writes out the symbol table. */ | |
6312 | if (ELF_ST_TYPE (src->st_info) == STT_ARM_TFUNC) | |
6313 | { | |
6314 | newsym = *src; | |
6315 | newsym.st_info = ELF_ST_INFO (ELF_ST_BIND (src->st_info), STT_FUNC); | |
6316 | newsym.st_value |= 1; | |
6317 | ||
6318 | src = &newsym; | |
6319 | } | |
6320 | bfd_elf32_swap_symbol_out (abfd, src, cdst, shndx); | |
6321 | } | |
6322 | ||
b294bdf8 MM |
6323 | /* Add the PT_ARM_EXIDX program header. */ |
6324 | ||
6325 | static bfd_boolean | |
6326 | elf32_arm_modify_segment_map (bfd *abfd, | |
6327 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
6328 | { | |
6329 | struct elf_segment_map *m; | |
6330 | asection *sec; | |
6331 | ||
6332 | sec = bfd_get_section_by_name (abfd, ".ARM.exidx"); | |
6333 | if (sec != NULL && (sec->flags & SEC_LOAD) != 0) | |
6334 | { | |
6335 | /* If there is already a PT_ARM_EXIDX header, then we do not | |
6336 | want to add another one. This situation arises when running | |
6337 | "strip"; the input binary already has the header. */ | |
6338 | m = elf_tdata (abfd)->segment_map; | |
6339 | while (m && m->p_type != PT_ARM_EXIDX) | |
6340 | m = m->next; | |
6341 | if (!m) | |
6342 | { | |
6343 | m = bfd_zalloc (abfd, sizeof (struct elf_segment_map)); | |
6344 | if (m == NULL) | |
6345 | return FALSE; | |
6346 | m->p_type = PT_ARM_EXIDX; | |
6347 | m->count = 1; | |
6348 | m->sections[0] = sec; | |
6349 | ||
6350 | m->next = elf_tdata (abfd)->segment_map; | |
6351 | elf_tdata (abfd)->segment_map = m; | |
6352 | } | |
6353 | } | |
6354 | ||
6355 | return TRUE; | |
6356 | } | |
6357 | ||
6358 | /* We may add a PT_ARM_EXIDX program header. */ | |
6359 | ||
6360 | static int | |
6361 | elf32_arm_additional_program_headers (bfd *abfd) | |
6362 | { | |
6363 | asection *sec; | |
6364 | ||
6365 | sec = bfd_get_section_by_name (abfd, ".ARM.exidx"); | |
6366 | if (sec != NULL && (sec->flags & SEC_LOAD) != 0) | |
6367 | return 1; | |
6368 | else | |
6369 | return 0; | |
6370 | } | |
6371 | ||
0beaef2b PB |
6372 | /* We use this to override swap_symbol_in and swap_symbol_out. */ |
6373 | const struct elf_size_info elf32_arm_size_info = { | |
6374 | sizeof (Elf32_External_Ehdr), | |
6375 | sizeof (Elf32_External_Phdr), | |
6376 | sizeof (Elf32_External_Shdr), | |
6377 | sizeof (Elf32_External_Rel), | |
6378 | sizeof (Elf32_External_Rela), | |
6379 | sizeof (Elf32_External_Sym), | |
6380 | sizeof (Elf32_External_Dyn), | |
6381 | sizeof (Elf_External_Note), | |
6382 | 4, | |
6383 | 1, | |
6384 | 32, 2, | |
6385 | ELFCLASS32, EV_CURRENT, | |
6386 | bfd_elf32_write_out_phdrs, | |
6387 | bfd_elf32_write_shdrs_and_ehdr, | |
6388 | bfd_elf32_write_relocs, | |
6389 | elf32_arm_swap_symbol_in, | |
6390 | elf32_arm_swap_symbol_out, | |
6391 | bfd_elf32_slurp_reloc_table, | |
6392 | bfd_elf32_slurp_symbol_table, | |
6393 | bfd_elf32_swap_dyn_in, | |
6394 | bfd_elf32_swap_dyn_out, | |
6395 | bfd_elf32_swap_reloc_in, | |
6396 | bfd_elf32_swap_reloc_out, | |
6397 | bfd_elf32_swap_reloca_in, | |
6398 | bfd_elf32_swap_reloca_out | |
6399 | }; | |
6400 | ||
252b5132 RH |
6401 | #define ELF_ARCH bfd_arch_arm |
6402 | #define ELF_MACHINE_CODE EM_ARM | |
d0facd1b NC |
6403 | #ifdef __QNXTARGET__ |
6404 | #define ELF_MAXPAGESIZE 0x1000 | |
6405 | #else | |
f21f3fe0 | 6406 | #define ELF_MAXPAGESIZE 0x8000 |
d0facd1b | 6407 | #endif |
b1342370 | 6408 | #define ELF_MINPAGESIZE 0x1000 |
252b5132 | 6409 | |
ba93b8ac DJ |
6410 | #define bfd_elf32_mkobject elf32_arm_mkobject |
6411 | ||
99e4ae17 AJ |
6412 | #define bfd_elf32_bfd_copy_private_bfd_data elf32_arm_copy_private_bfd_data |
6413 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_arm_merge_private_bfd_data | |
252b5132 RH |
6414 | #define bfd_elf32_bfd_set_private_flags elf32_arm_set_private_flags |
6415 | #define bfd_elf32_bfd_print_private_bfd_data elf32_arm_print_private_bfd_data | |
6416 | #define bfd_elf32_bfd_link_hash_table_create elf32_arm_link_hash_table_create | |
dc810e39 | 6417 | #define bfd_elf32_bfd_reloc_type_lookup elf32_arm_reloc_type_lookup |
252b5132 | 6418 | #define bfd_elf32_find_nearest_line elf32_arm_find_nearest_line |
e489d0ae | 6419 | #define bfd_elf32_new_section_hook elf32_arm_new_section_hook |
3c9458e9 | 6420 | #define bfd_elf32_bfd_is_target_special_symbol elf32_arm_is_target_special_symbol |
252b5132 RH |
6421 | |
6422 | #define elf_backend_get_symbol_type elf32_arm_get_symbol_type | |
6423 | #define elf_backend_gc_mark_hook elf32_arm_gc_mark_hook | |
6424 | #define elf_backend_gc_sweep_hook elf32_arm_gc_sweep_hook | |
6425 | #define elf_backend_check_relocs elf32_arm_check_relocs | |
dc810e39 | 6426 | #define elf_backend_relocate_section elf32_arm_relocate_section |
e489d0ae | 6427 | #define elf_backend_write_section elf32_arm_write_section |
252b5132 | 6428 | #define elf_backend_adjust_dynamic_symbol elf32_arm_adjust_dynamic_symbol |
5e681ec4 | 6429 | #define elf_backend_create_dynamic_sections elf32_arm_create_dynamic_sections |
252b5132 RH |
6430 | #define elf_backend_finish_dynamic_symbol elf32_arm_finish_dynamic_symbol |
6431 | #define elf_backend_finish_dynamic_sections elf32_arm_finish_dynamic_sections | |
e489d0ae | 6432 | #define elf_backend_link_output_symbol_hook elf32_arm_output_symbol_hook |
252b5132 | 6433 | #define elf_backend_size_dynamic_sections elf32_arm_size_dynamic_sections |
ba96a88f | 6434 | #define elf_backend_post_process_headers elf32_arm_post_process_headers |
99e4ae17 | 6435 | #define elf_backend_reloc_type_class elf32_arm_reloc_type_class |
c178919b | 6436 | #define elf_backend_object_p elf32_arm_object_p |
e16bb312 | 6437 | #define elf_backend_section_flags elf32_arm_section_flags |
40a18ebd NC |
6438 | #define elf_backend_fake_sections elf32_arm_fake_sections |
6439 | #define elf_backend_section_from_shdr elf32_arm_section_from_shdr | |
e16bb312 | 6440 | #define elf_backend_final_write_processing elf32_arm_final_write_processing |
5e681ec4 | 6441 | #define elf_backend_copy_indirect_symbol elf32_arm_copy_indirect_symbol |
b7693d02 | 6442 | #define elf_backend_symbol_processing elf32_arm_symbol_processing |
0beaef2b | 6443 | #define elf_backend_size_info elf32_arm_size_info |
b294bdf8 MM |
6444 | #define elf_backend_modify_segment_map elf32_arm_modify_segment_map |
6445 | #define elf_backend_additional_program_headers \ | |
6446 | elf32_arm_additional_program_headers | |
252b5132 | 6447 | |
5e681ec4 | 6448 | #define elf_backend_can_refcount 1 |
252b5132 RH |
6449 | #define elf_backend_can_gc_sections 1 |
6450 | #define elf_backend_plt_readonly 1 | |
6451 | #define elf_backend_want_got_plt 1 | |
6452 | #define elf_backend_want_plt_sym 0 | |
4e7fd91e PB |
6453 | #define elf_backend_may_use_rel_p 1 |
6454 | #define elf_backend_may_use_rela_p 0 | |
6455 | #define elf_backend_default_use_rela_p 0 | |
6456 | #define elf_backend_rela_normal 0 | |
252b5132 | 6457 | |
04f7c78d | 6458 | #define elf_backend_got_header_size 12 |
04f7c78d | 6459 | |
252b5132 | 6460 | #include "elf32-target.h" |
7f266840 | 6461 | |
4e7fd91e PB |
6462 | /* VxWorks Targets */ |
6463 | ||
6464 | #undef TARGET_LITTLE_SYM | |
6465 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_vxworks_vec | |
6466 | #undef TARGET_LITTLE_NAME | |
6467 | #define TARGET_LITTLE_NAME "elf32-littlearm-vxworks" | |
6468 | #undef TARGET_BIG_SYM | |
6469 | #define TARGET_BIG_SYM bfd_elf32_bigarm_vxworks_vec | |
6470 | #undef TARGET_BIG_NAME | |
6471 | #define TARGET_BIG_NAME "elf32-bigarm-vxworks" | |
6472 | ||
6473 | /* Like elf32_arm_link_hash_table_create -- but overrides | |
6474 | appropriately for VxWorks. */ | |
6475 | static struct bfd_link_hash_table * | |
6476 | elf32_arm_vxworks_link_hash_table_create (bfd *abfd) | |
6477 | { | |
6478 | struct bfd_link_hash_table *ret; | |
6479 | ||
6480 | ret = elf32_arm_link_hash_table_create (abfd); | |
6481 | if (ret) | |
6482 | { | |
6483 | struct elf32_arm_link_hash_table *htab | |
6484 | = (struct elf32_arm_link_hash_table *)ret; | |
6485 | htab->use_rel = 0; | |
6486 | } | |
6487 | return ret; | |
6488 | } | |
6489 | ||
6490 | #undef elf32_bed | |
6491 | #define elf32_bed elf32_arm_vxworks_bed | |
6492 | ||
6493 | #undef bfd_elf32_bfd_link_hash_table_create | |
6494 | #define bfd_elf32_bfd_link_hash_table_create \ | |
6495 | elf32_arm_vxworks_link_hash_table_create | |
6496 | ||
6497 | #undef elf_backend_may_use_rel_p | |
6498 | #define elf_backend_may_use_rel_p 0 | |
6499 | #undef elf_backend_may_use_rela_p | |
6500 | #define elf_backend_may_use_rela_p 1 | |
6501 | #undef elf_backend_default_use_rela_p | |
6502 | #define elf_backend_default_use_rela_p 1 | |
6503 | #undef elf_backend_rela_normal | |
6504 | #define elf_backend_rela_normal 1 | |
6505 | ||
6506 | #include "elf32-target.h" | |
6507 | ||
6508 | ||
7f266840 DJ |
6509 | /* Symbian OS Targets */ |
6510 | ||
6511 | #undef TARGET_LITTLE_SYM | |
6512 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_symbian_vec | |
6513 | #undef TARGET_LITTLE_NAME | |
6514 | #define TARGET_LITTLE_NAME "elf32-littlearm-symbian" | |
6515 | #undef TARGET_BIG_SYM | |
6516 | #define TARGET_BIG_SYM bfd_elf32_bigarm_symbian_vec | |
6517 | #undef TARGET_BIG_NAME | |
6518 | #define TARGET_BIG_NAME "elf32-bigarm-symbian" | |
6519 | ||
6520 | /* Like elf32_arm_link_hash_table_create -- but overrides | |
6521 | appropriately for Symbian OS. */ | |
6522 | static struct bfd_link_hash_table * | |
6523 | elf32_arm_symbian_link_hash_table_create (bfd *abfd) | |
6524 | { | |
6525 | struct bfd_link_hash_table *ret; | |
6526 | ||
6527 | ret = elf32_arm_link_hash_table_create (abfd); | |
6528 | if (ret) | |
6529 | { | |
6530 | struct elf32_arm_link_hash_table *htab | |
6531 | = (struct elf32_arm_link_hash_table *)ret; | |
6532 | /* There is no PLT header for Symbian OS. */ | |
6533 | htab->plt_header_size = 0; | |
6534 | /* The PLT entries are each three instructions. */ | |
6535 | htab->plt_entry_size = 4 * NUM_ELEM (elf32_arm_symbian_plt_entry); | |
6536 | htab->symbian_p = 1; | |
33bfe774 JB |
6537 | /* Symbian uses armv5t or above, so use_blx is always true. */ |
6538 | htab->use_blx = 1; | |
67687978 | 6539 | htab->root.is_relocatable_executable = 1; |
7f266840 DJ |
6540 | } |
6541 | return ret; | |
6542 | } | |
6543 | ||
7f4d3958 L |
6544 | static struct bfd_elf_special_section const |
6545 | symbian_special_sections_d[]= | |
7f266840 | 6546 | { |
5cd3778d MM |
6547 | /* In a BPABI executable, the dynamic linking sections do not go in |
6548 | the loadable read-only segment. The post-linker may wish to | |
6549 | refer to these sections, but they are not part of the final | |
6550 | program image. */ | |
7f266840 DJ |
6551 | { ".dynamic", 8, 0, SHT_DYNAMIC, 0 }, |
6552 | { ".dynstr", 7, 0, SHT_STRTAB, 0 }, | |
6553 | { ".dynsym", 7, 0, SHT_DYNSYM, 0 }, | |
7f4d3958 L |
6554 | { NULL, 0, 0, 0, 0 } |
6555 | }; | |
6556 | ||
6557 | static struct bfd_elf_special_section const | |
6558 | symbian_special_sections_g[]= | |
6559 | { | |
6560 | /* In a BPABI executable, the dynamic linking sections do not go in | |
6561 | the loadable read-only segment. The post-linker may wish to | |
6562 | refer to these sections, but they are not part of the final | |
6563 | program image. */ | |
7f266840 | 6564 | { ".got", 4, 0, SHT_PROGBITS, 0 }, |
7f4d3958 L |
6565 | { NULL, 0, 0, 0, 0 } |
6566 | }; | |
6567 | ||
6568 | static struct bfd_elf_special_section const | |
6569 | symbian_special_sections_h[]= | |
6570 | { | |
6571 | /* In a BPABI executable, the dynamic linking sections do not go in | |
6572 | the loadable read-only segment. The post-linker may wish to | |
6573 | refer to these sections, but they are not part of the final | |
6574 | program image. */ | |
7f266840 | 6575 | { ".hash", 5, 0, SHT_HASH, 0 }, |
7f4d3958 L |
6576 | { NULL, 0, 0, 0, 0 } |
6577 | }; | |
6578 | ||
6579 | static struct bfd_elf_special_section const | |
6580 | symbian_special_sections_i[]= | |
6581 | { | |
5cd3778d MM |
6582 | /* These sections do not need to be writable as the SymbianOS |
6583 | postlinker will arrange things so that no dynamic relocation is | |
6584 | required. */ | |
6585 | { ".init_array", 11, 0, SHT_INIT_ARRAY, SHF_ALLOC }, | |
7f4d3958 L |
6586 | { NULL, 0, 0, 0, 0 } |
6587 | }; | |
6588 | ||
6589 | static struct bfd_elf_special_section const | |
6590 | symbian_special_sections_f[]= | |
6591 | { | |
6592 | /* These sections do not need to be writable as the SymbianOS | |
6593 | postlinker will arrange things so that no dynamic relocation is | |
6594 | required. */ | |
5cd3778d | 6595 | { ".fini_array", 11, 0, SHT_FINI_ARRAY, SHF_ALLOC }, |
7f4d3958 L |
6596 | { NULL, 0, 0, 0, 0 } |
6597 | }; | |
6598 | ||
6599 | static struct bfd_elf_special_section const | |
6600 | symbian_special_sections_p[]= | |
6601 | { | |
6602 | /* These sections do not need to be writable as the SymbianOS | |
6603 | postlinker will arrange things so that no dynamic relocation is | |
6604 | required. */ | |
5cd3778d | 6605 | { ".preinit_array", 14, 0, SHT_PREINIT_ARRAY, SHF_ALLOC }, |
7f266840 DJ |
6606 | { NULL, 0, 0, 0, 0 } |
6607 | }; | |
6608 | ||
7f4d3958 L |
6609 | static struct bfd_elf_special_section const * |
6610 | elf32_arm_symbian_special_sections[27]= | |
6611 | { | |
6612 | NULL, /* 'a' */ | |
6613 | NULL, /* 'b' */ | |
6614 | NULL, /* 'c' */ | |
6615 | symbian_special_sections_d, /* 'd' */ | |
6616 | NULL, /* 'e' */ | |
6617 | symbian_special_sections_f, /* 'f' */ | |
6618 | symbian_special_sections_g, /* 'g' */ | |
6619 | symbian_special_sections_h, /* 'h' */ | |
6620 | symbian_special_sections_i, /* 'i' */ | |
6621 | NULL, /* 'j' */ | |
6622 | NULL, /* 'k' */ | |
6623 | NULL, /* 'l' */ | |
6624 | NULL, /* 'm' */ | |
6625 | NULL, /* 'n' */ | |
6626 | NULL, /* 'o' */ | |
6627 | symbian_special_sections_p, /* 'p' */ | |
6628 | NULL, /* 'q' */ | |
6629 | NULL, /* 'r' */ | |
6630 | NULL, /* 's' */ | |
6631 | NULL, /* 't' */ | |
6632 | NULL, /* 'u' */ | |
6633 | NULL, /* 'v' */ | |
6634 | NULL, /* 'w' */ | |
6635 | NULL, /* 'x' */ | |
6636 | NULL, /* 'y' */ | |
6637 | NULL, /* 'z' */ | |
6638 | NULL /* other */ | |
6639 | }; | |
6640 | ||
c3c76620 | 6641 | static void |
b34af79c MM |
6642 | elf32_arm_symbian_begin_write_processing (bfd *abfd, |
6643 | struct bfd_link_info *link_info | |
6644 | ATTRIBUTE_UNUSED) | |
c3c76620 MM |
6645 | { |
6646 | /* BPABI objects are never loaded directly by an OS kernel; they are | |
6647 | processed by a postlinker first, into an OS-specific format. If | |
6648 | the D_PAGED bit is set on the file, BFD will align segments on | |
6649 | page boundaries, so that an OS can directly map the file. With | |
6650 | BPABI objects, that just results in wasted space. In addition, | |
6651 | because we clear the D_PAGED bit, map_sections_to_segments will | |
6652 | recognize that the program headers should not be mapped into any | |
6653 | loadable segment. */ | |
6654 | abfd->flags &= ~D_PAGED; | |
6655 | } | |
7f266840 DJ |
6656 | |
6657 | static bfd_boolean | |
b34af79c | 6658 | elf32_arm_symbian_modify_segment_map (bfd *abfd, |
b294bdf8 | 6659 | struct bfd_link_info *info) |
7f266840 DJ |
6660 | { |
6661 | struct elf_segment_map *m; | |
6662 | asection *dynsec; | |
6663 | ||
7f266840 DJ |
6664 | /* BPABI shared libraries and executables should have a PT_DYNAMIC |
6665 | segment. However, because the .dynamic section is not marked | |
6666 | with SEC_LOAD, the generic ELF code will not create such a | |
6667 | segment. */ | |
6668 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
6669 | if (dynsec) | |
6670 | { | |
6671 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
6672 | m->next = elf_tdata (abfd)->segment_map; | |
6673 | elf_tdata (abfd)->segment_map = m; | |
6674 | } | |
6675 | ||
b294bdf8 MM |
6676 | /* Also call the generic arm routine. */ |
6677 | return elf32_arm_modify_segment_map (abfd, info); | |
7f266840 DJ |
6678 | } |
6679 | ||
6680 | #undef elf32_bed | |
6681 | #define elf32_bed elf32_arm_symbian_bed | |
6682 | ||
6683 | /* The dynamic sections are not allocated on SymbianOS; the postlinker | |
6684 | will process them and then discard them. */ | |
6685 | #undef ELF_DYNAMIC_SEC_FLAGS | |
6686 | #define ELF_DYNAMIC_SEC_FLAGS \ | |
6687 | (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED) | |
6688 | ||
6689 | #undef bfd_elf32_bfd_link_hash_table_create | |
6690 | #define bfd_elf32_bfd_link_hash_table_create \ | |
6691 | elf32_arm_symbian_link_hash_table_create | |
6692 | ||
6693 | #undef elf_backend_special_sections | |
6694 | #define elf_backend_special_sections elf32_arm_symbian_special_sections | |
6695 | ||
c3c76620 MM |
6696 | #undef elf_backend_begin_write_processing |
6697 | #define elf_backend_begin_write_processing \ | |
6698 | elf32_arm_symbian_begin_write_processing | |
6699 | ||
7f266840 DJ |
6700 | #undef elf_backend_modify_segment_map |
6701 | #define elf_backend_modify_segment_map elf32_arm_symbian_modify_segment_map | |
6702 | ||
6703 | /* There is no .got section for BPABI objects, and hence no header. */ | |
6704 | #undef elf_backend_got_header_size | |
6705 | #define elf_backend_got_header_size 0 | |
6706 | ||
6707 | /* Similarly, there is no .got.plt section. */ | |
6708 | #undef elf_backend_want_got_plt | |
6709 | #define elf_backend_want_got_plt 0 | |
6710 | ||
4e7fd91e PB |
6711 | #undef elf_backend_may_use_rel_p |
6712 | #define elf_backend_may_use_rel_p 1 | |
6713 | #undef elf_backend_may_use_rela_p | |
6714 | #define elf_backend_may_use_rela_p 0 | |
6715 | #undef elf_backend_default_use_rela_p | |
dc4c9c19 | 6716 | #define elf_backend_default_use_rela_p 0 |
4e7fd91e PB |
6717 | #undef elf_backend_rela_normal |
6718 | #define elf_backend_rela_normal 0 | |
6719 | ||
7f266840 | 6720 | #include "elf32-target.h" |