Commit | Line | Data |
---|---|---|
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 | ||
7f266840 DJ |
37 | /* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g. |
38 | R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO | |
39 | in that slot. */ | |
40 | ||
c19d1205 | 41 | static reloc_howto_type elf32_arm_howto_table_1[] = |
7f266840 DJ |
42 | { |
43 | /* No relocation */ | |
44 | HOWTO (R_ARM_NONE, /* type */ | |
45 | 0, /* rightshift */ | |
46 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
47 | 0, /* bitsize */ | |
48 | FALSE, /* pc_relative */ | |
49 | 0, /* bitpos */ | |
50 | complain_overflow_dont,/* complain_on_overflow */ | |
51 | bfd_elf_generic_reloc, /* special_function */ | |
52 | "R_ARM_NONE", /* name */ | |
53 | FALSE, /* partial_inplace */ | |
54 | 0, /* src_mask */ | |
55 | 0, /* dst_mask */ | |
56 | FALSE), /* pcrel_offset */ | |
57 | ||
58 | HOWTO (R_ARM_PC24, /* type */ | |
59 | 2, /* rightshift */ | |
60 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
61 | 24, /* bitsize */ | |
62 | TRUE, /* pc_relative */ | |
63 | 0, /* bitpos */ | |
64 | complain_overflow_signed,/* complain_on_overflow */ | |
65 | bfd_elf_generic_reloc, /* special_function */ | |
66 | "R_ARM_PC24", /* name */ | |
67 | FALSE, /* partial_inplace */ | |
68 | 0x00ffffff, /* src_mask */ | |
69 | 0x00ffffff, /* dst_mask */ | |
70 | TRUE), /* pcrel_offset */ | |
71 | ||
72 | /* 32 bit absolute */ | |
73 | HOWTO (R_ARM_ABS32, /* type */ | |
74 | 0, /* rightshift */ | |
75 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
76 | 32, /* bitsize */ | |
77 | FALSE, /* pc_relative */ | |
78 | 0, /* bitpos */ | |
79 | complain_overflow_bitfield,/* complain_on_overflow */ | |
80 | bfd_elf_generic_reloc, /* special_function */ | |
81 | "R_ARM_ABS32", /* name */ | |
82 | FALSE, /* partial_inplace */ | |
83 | 0xffffffff, /* src_mask */ | |
84 | 0xffffffff, /* dst_mask */ | |
85 | FALSE), /* pcrel_offset */ | |
86 | ||
87 | /* standard 32bit pc-relative reloc */ | |
88 | HOWTO (R_ARM_REL32, /* type */ | |
89 | 0, /* rightshift */ | |
90 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
91 | 32, /* bitsize */ | |
92 | TRUE, /* pc_relative */ | |
93 | 0, /* bitpos */ | |
94 | complain_overflow_bitfield,/* complain_on_overflow */ | |
95 | bfd_elf_generic_reloc, /* special_function */ | |
96 | "R_ARM_REL32", /* name */ | |
97 | FALSE, /* partial_inplace */ | |
98 | 0xffffffff, /* src_mask */ | |
99 | 0xffffffff, /* dst_mask */ | |
100 | TRUE), /* pcrel_offset */ | |
101 | ||
c19d1205 | 102 | /* 8 bit absolute - R_ARM_LDR_PC_G0 in AAELF */ |
7f266840 DJ |
103 | HOWTO (R_ARM_PC13, /* type */ |
104 | 0, /* rightshift */ | |
105 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
106 | 8, /* bitsize */ | |
107 | FALSE, /* pc_relative */ | |
108 | 0, /* bitpos */ | |
109 | complain_overflow_bitfield,/* complain_on_overflow */ | |
110 | bfd_elf_generic_reloc, /* special_function */ | |
111 | "R_ARM_PC13", /* name */ | |
112 | FALSE, /* partial_inplace */ | |
113 | 0x000000ff, /* src_mask */ | |
114 | 0x000000ff, /* dst_mask */ | |
115 | FALSE), /* pcrel_offset */ | |
116 | ||
117 | /* 16 bit absolute */ | |
118 | HOWTO (R_ARM_ABS16, /* type */ | |
119 | 0, /* rightshift */ | |
120 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
121 | 16, /* bitsize */ | |
122 | FALSE, /* pc_relative */ | |
123 | 0, /* bitpos */ | |
124 | complain_overflow_bitfield,/* complain_on_overflow */ | |
125 | bfd_elf_generic_reloc, /* special_function */ | |
126 | "R_ARM_ABS16", /* name */ | |
127 | FALSE, /* partial_inplace */ | |
128 | 0x0000ffff, /* src_mask */ | |
129 | 0x0000ffff, /* dst_mask */ | |
130 | FALSE), /* pcrel_offset */ | |
131 | ||
132 | /* 12 bit absolute */ | |
133 | HOWTO (R_ARM_ABS12, /* type */ | |
134 | 0, /* rightshift */ | |
135 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
136 | 12, /* bitsize */ | |
137 | FALSE, /* pc_relative */ | |
138 | 0, /* bitpos */ | |
139 | complain_overflow_bitfield,/* complain_on_overflow */ | |
140 | bfd_elf_generic_reloc, /* special_function */ | |
141 | "R_ARM_ABS12", /* name */ | |
142 | FALSE, /* partial_inplace */ | |
143 | 0x000008ff, /* src_mask */ | |
144 | 0x000008ff, /* dst_mask */ | |
145 | FALSE), /* pcrel_offset */ | |
146 | ||
147 | HOWTO (R_ARM_THM_ABS5, /* type */ | |
148 | 6, /* rightshift */ | |
149 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
150 | 5, /* bitsize */ | |
151 | FALSE, /* pc_relative */ | |
152 | 0, /* bitpos */ | |
153 | complain_overflow_bitfield,/* complain_on_overflow */ | |
154 | bfd_elf_generic_reloc, /* special_function */ | |
155 | "R_ARM_THM_ABS5", /* name */ | |
156 | FALSE, /* partial_inplace */ | |
157 | 0x000007e0, /* src_mask */ | |
158 | 0x000007e0, /* dst_mask */ | |
159 | FALSE), /* pcrel_offset */ | |
160 | ||
161 | /* 8 bit absolute */ | |
162 | HOWTO (R_ARM_ABS8, /* type */ | |
163 | 0, /* rightshift */ | |
164 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
165 | 8, /* bitsize */ | |
166 | FALSE, /* pc_relative */ | |
167 | 0, /* bitpos */ | |
168 | complain_overflow_bitfield,/* complain_on_overflow */ | |
169 | bfd_elf_generic_reloc, /* special_function */ | |
170 | "R_ARM_ABS8", /* name */ | |
171 | FALSE, /* partial_inplace */ | |
172 | 0x000000ff, /* src_mask */ | |
173 | 0x000000ff, /* dst_mask */ | |
174 | FALSE), /* pcrel_offset */ | |
175 | ||
176 | HOWTO (R_ARM_SBREL32, /* type */ | |
177 | 0, /* rightshift */ | |
178 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
179 | 32, /* bitsize */ | |
180 | FALSE, /* pc_relative */ | |
181 | 0, /* bitpos */ | |
182 | complain_overflow_dont,/* complain_on_overflow */ | |
183 | bfd_elf_generic_reloc, /* special_function */ | |
184 | "R_ARM_SBREL32", /* name */ | |
185 | FALSE, /* partial_inplace */ | |
186 | 0xffffffff, /* src_mask */ | |
187 | 0xffffffff, /* dst_mask */ | |
188 | FALSE), /* pcrel_offset */ | |
189 | ||
c19d1205 ZW |
190 | /* FIXME: Has two more bits of offset in Thumb32. */ |
191 | HOWTO (R_ARM_THM_CALL, /* type */ | |
7f266840 DJ |
192 | 1, /* rightshift */ |
193 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
194 | 23, /* bitsize */ | |
195 | TRUE, /* pc_relative */ | |
196 | 0, /* bitpos */ | |
197 | complain_overflow_signed,/* complain_on_overflow */ | |
198 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 199 | "R_ARM_THM_CALL", /* name */ |
7f266840 DJ |
200 | FALSE, /* partial_inplace */ |
201 | 0x07ff07ff, /* src_mask */ | |
202 | 0x07ff07ff, /* dst_mask */ | |
203 | TRUE), /* pcrel_offset */ | |
204 | ||
205 | HOWTO (R_ARM_THM_PC8, /* type */ | |
206 | 1, /* rightshift */ | |
207 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
208 | 8, /* bitsize */ | |
209 | TRUE, /* pc_relative */ | |
210 | 0, /* bitpos */ | |
211 | complain_overflow_signed,/* complain_on_overflow */ | |
212 | bfd_elf_generic_reloc, /* special_function */ | |
213 | "R_ARM_THM_PC8", /* name */ | |
214 | FALSE, /* partial_inplace */ | |
215 | 0x000000ff, /* src_mask */ | |
216 | 0x000000ff, /* dst_mask */ | |
217 | TRUE), /* pcrel_offset */ | |
218 | ||
c19d1205 | 219 | HOWTO (R_ARM_BREL_ADJ, /* type */ |
7f266840 DJ |
220 | 1, /* rightshift */ |
221 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
c19d1205 ZW |
222 | 32, /* bitsize */ |
223 | FALSE, /* pc_relative */ | |
7f266840 DJ |
224 | 0, /* bitpos */ |
225 | complain_overflow_signed,/* complain_on_overflow */ | |
226 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 227 | "R_ARM_BREL_ADJ", /* name */ |
7f266840 | 228 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
229 | 0xffffffff, /* src_mask */ |
230 | 0xffffffff, /* dst_mask */ | |
231 | FALSE), /* pcrel_offset */ | |
7f266840 DJ |
232 | |
233 | HOWTO (R_ARM_SWI24, /* type */ | |
234 | 0, /* rightshift */ | |
235 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
236 | 0, /* bitsize */ | |
237 | FALSE, /* pc_relative */ | |
238 | 0, /* bitpos */ | |
239 | complain_overflow_signed,/* complain_on_overflow */ | |
240 | bfd_elf_generic_reloc, /* special_function */ | |
241 | "R_ARM_SWI24", /* name */ | |
242 | FALSE, /* partial_inplace */ | |
243 | 0x00000000, /* src_mask */ | |
244 | 0x00000000, /* dst_mask */ | |
245 | FALSE), /* pcrel_offset */ | |
246 | ||
247 | HOWTO (R_ARM_THM_SWI8, /* type */ | |
248 | 0, /* rightshift */ | |
249 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
250 | 0, /* bitsize */ | |
251 | FALSE, /* pc_relative */ | |
252 | 0, /* bitpos */ | |
253 | complain_overflow_signed,/* complain_on_overflow */ | |
254 | bfd_elf_generic_reloc, /* special_function */ | |
255 | "R_ARM_SWI8", /* name */ | |
256 | FALSE, /* partial_inplace */ | |
257 | 0x00000000, /* src_mask */ | |
258 | 0x00000000, /* dst_mask */ | |
259 | FALSE), /* pcrel_offset */ | |
260 | ||
261 | /* BLX instruction for the ARM. */ | |
262 | HOWTO (R_ARM_XPC25, /* type */ | |
263 | 2, /* rightshift */ | |
264 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
265 | 25, /* bitsize */ | |
266 | TRUE, /* pc_relative */ | |
267 | 0, /* bitpos */ | |
268 | complain_overflow_signed,/* complain_on_overflow */ | |
269 | bfd_elf_generic_reloc, /* special_function */ | |
270 | "R_ARM_XPC25", /* name */ | |
271 | FALSE, /* partial_inplace */ | |
272 | 0x00ffffff, /* src_mask */ | |
273 | 0x00ffffff, /* dst_mask */ | |
274 | TRUE), /* pcrel_offset */ | |
275 | ||
276 | /* BLX instruction for the Thumb. */ | |
277 | HOWTO (R_ARM_THM_XPC22, /* type */ | |
278 | 2, /* rightshift */ | |
279 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
280 | 22, /* bitsize */ | |
281 | TRUE, /* pc_relative */ | |
282 | 0, /* bitpos */ | |
283 | complain_overflow_signed,/* complain_on_overflow */ | |
284 | bfd_elf_generic_reloc, /* special_function */ | |
285 | "R_ARM_THM_XPC22", /* name */ | |
286 | FALSE, /* partial_inplace */ | |
287 | 0x07ff07ff, /* src_mask */ | |
288 | 0x07ff07ff, /* dst_mask */ | |
289 | TRUE), /* pcrel_offset */ | |
290 | ||
ba93b8ac | 291 | /* Dynamic TLS relocations. */ |
7f266840 | 292 | |
ba93b8ac DJ |
293 | HOWTO (R_ARM_TLS_DTPMOD32, /* type */ |
294 | 0, /* rightshift */ | |
295 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
296 | 32, /* bitsize */ | |
297 | FALSE, /* pc_relative */ | |
298 | 0, /* bitpos */ | |
299 | complain_overflow_bitfield,/* complain_on_overflow */ | |
300 | bfd_elf_generic_reloc, /* special_function */ | |
301 | "R_ARM_TLS_DTPMOD32", /* name */ | |
302 | TRUE, /* partial_inplace */ | |
303 | 0xffffffff, /* src_mask */ | |
304 | 0xffffffff, /* dst_mask */ | |
305 | FALSE), /* pcrel_offset */ | |
7f266840 | 306 | |
ba93b8ac DJ |
307 | HOWTO (R_ARM_TLS_DTPOFF32, /* type */ |
308 | 0, /* rightshift */ | |
309 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
310 | 32, /* bitsize */ | |
311 | FALSE, /* pc_relative */ | |
312 | 0, /* bitpos */ | |
313 | complain_overflow_bitfield,/* complain_on_overflow */ | |
314 | bfd_elf_generic_reloc, /* special_function */ | |
315 | "R_ARM_TLS_DTPOFF32", /* name */ | |
316 | TRUE, /* partial_inplace */ | |
317 | 0xffffffff, /* src_mask */ | |
318 | 0xffffffff, /* dst_mask */ | |
319 | FALSE), /* pcrel_offset */ | |
7f266840 | 320 | |
ba93b8ac DJ |
321 | HOWTO (R_ARM_TLS_TPOFF32, /* type */ |
322 | 0, /* rightshift */ | |
323 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
324 | 32, /* bitsize */ | |
325 | FALSE, /* pc_relative */ | |
326 | 0, /* bitpos */ | |
327 | complain_overflow_bitfield,/* complain_on_overflow */ | |
328 | bfd_elf_generic_reloc, /* special_function */ | |
329 | "R_ARM_TLS_TPOFF32", /* name */ | |
330 | TRUE, /* partial_inplace */ | |
331 | 0xffffffff, /* src_mask */ | |
332 | 0xffffffff, /* dst_mask */ | |
333 | FALSE), /* pcrel_offset */ | |
7f266840 DJ |
334 | |
335 | /* Relocs used in ARM Linux */ | |
336 | ||
337 | HOWTO (R_ARM_COPY, /* type */ | |
338 | 0, /* rightshift */ | |
339 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
340 | 32, /* bitsize */ | |
341 | FALSE, /* pc_relative */ | |
342 | 0, /* bitpos */ | |
343 | complain_overflow_bitfield,/* complain_on_overflow */ | |
344 | bfd_elf_generic_reloc, /* special_function */ | |
345 | "R_ARM_COPY", /* name */ | |
346 | TRUE, /* partial_inplace */ | |
347 | 0xffffffff, /* src_mask */ | |
348 | 0xffffffff, /* dst_mask */ | |
349 | FALSE), /* pcrel_offset */ | |
350 | ||
351 | HOWTO (R_ARM_GLOB_DAT, /* type */ | |
352 | 0, /* rightshift */ | |
353 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
354 | 32, /* bitsize */ | |
355 | FALSE, /* pc_relative */ | |
356 | 0, /* bitpos */ | |
357 | complain_overflow_bitfield,/* complain_on_overflow */ | |
358 | bfd_elf_generic_reloc, /* special_function */ | |
359 | "R_ARM_GLOB_DAT", /* name */ | |
360 | TRUE, /* partial_inplace */ | |
361 | 0xffffffff, /* src_mask */ | |
362 | 0xffffffff, /* dst_mask */ | |
363 | FALSE), /* pcrel_offset */ | |
364 | ||
365 | HOWTO (R_ARM_JUMP_SLOT, /* type */ | |
366 | 0, /* rightshift */ | |
367 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
368 | 32, /* bitsize */ | |
369 | FALSE, /* pc_relative */ | |
370 | 0, /* bitpos */ | |
371 | complain_overflow_bitfield,/* complain_on_overflow */ | |
372 | bfd_elf_generic_reloc, /* special_function */ | |
373 | "R_ARM_JUMP_SLOT", /* name */ | |
374 | TRUE, /* partial_inplace */ | |
375 | 0xffffffff, /* src_mask */ | |
376 | 0xffffffff, /* dst_mask */ | |
377 | FALSE), /* pcrel_offset */ | |
378 | ||
379 | HOWTO (R_ARM_RELATIVE, /* type */ | |
380 | 0, /* rightshift */ | |
381 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
382 | 32, /* bitsize */ | |
383 | FALSE, /* pc_relative */ | |
384 | 0, /* bitpos */ | |
385 | complain_overflow_bitfield,/* complain_on_overflow */ | |
386 | bfd_elf_generic_reloc, /* special_function */ | |
387 | "R_ARM_RELATIVE", /* name */ | |
388 | TRUE, /* partial_inplace */ | |
389 | 0xffffffff, /* src_mask */ | |
390 | 0xffffffff, /* dst_mask */ | |
391 | FALSE), /* pcrel_offset */ | |
392 | ||
c19d1205 | 393 | HOWTO (R_ARM_GOTOFF32, /* type */ |
7f266840 DJ |
394 | 0, /* rightshift */ |
395 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
396 | 32, /* bitsize */ | |
397 | FALSE, /* pc_relative */ | |
398 | 0, /* bitpos */ | |
399 | complain_overflow_bitfield,/* complain_on_overflow */ | |
400 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 401 | "R_ARM_GOTOFF32", /* name */ |
7f266840 DJ |
402 | TRUE, /* partial_inplace */ |
403 | 0xffffffff, /* src_mask */ | |
404 | 0xffffffff, /* dst_mask */ | |
405 | FALSE), /* pcrel_offset */ | |
406 | ||
407 | HOWTO (R_ARM_GOTPC, /* type */ | |
408 | 0, /* rightshift */ | |
409 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
410 | 32, /* bitsize */ | |
411 | TRUE, /* pc_relative */ | |
412 | 0, /* bitpos */ | |
413 | complain_overflow_bitfield,/* complain_on_overflow */ | |
414 | bfd_elf_generic_reloc, /* special_function */ | |
415 | "R_ARM_GOTPC", /* name */ | |
416 | TRUE, /* partial_inplace */ | |
417 | 0xffffffff, /* src_mask */ | |
418 | 0xffffffff, /* dst_mask */ | |
419 | TRUE), /* pcrel_offset */ | |
420 | ||
421 | HOWTO (R_ARM_GOT32, /* type */ | |
422 | 0, /* rightshift */ | |
423 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
424 | 32, /* bitsize */ | |
425 | FALSE, /* pc_relative */ | |
426 | 0, /* bitpos */ | |
427 | complain_overflow_bitfield,/* complain_on_overflow */ | |
428 | bfd_elf_generic_reloc, /* special_function */ | |
429 | "R_ARM_GOT32", /* name */ | |
430 | TRUE, /* partial_inplace */ | |
431 | 0xffffffff, /* src_mask */ | |
432 | 0xffffffff, /* dst_mask */ | |
433 | FALSE), /* pcrel_offset */ | |
434 | ||
435 | HOWTO (R_ARM_PLT32, /* type */ | |
436 | 2, /* rightshift */ | |
437 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
ce490eda | 438 | 24, /* bitsize */ |
7f266840 DJ |
439 | TRUE, /* pc_relative */ |
440 | 0, /* bitpos */ | |
441 | complain_overflow_bitfield,/* complain_on_overflow */ | |
442 | bfd_elf_generic_reloc, /* special_function */ | |
443 | "R_ARM_PLT32", /* name */ | |
ce490eda | 444 | FALSE, /* partial_inplace */ |
7f266840 DJ |
445 | 0x00ffffff, /* src_mask */ |
446 | 0x00ffffff, /* dst_mask */ | |
447 | TRUE), /* pcrel_offset */ | |
448 | ||
449 | HOWTO (R_ARM_CALL, /* type */ | |
450 | 2, /* rightshift */ | |
451 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
452 | 24, /* bitsize */ | |
453 | TRUE, /* pc_relative */ | |
454 | 0, /* bitpos */ | |
455 | complain_overflow_signed,/* complain_on_overflow */ | |
456 | bfd_elf_generic_reloc, /* special_function */ | |
457 | "R_ARM_CALL", /* name */ | |
458 | FALSE, /* partial_inplace */ | |
459 | 0x00ffffff, /* src_mask */ | |
460 | 0x00ffffff, /* dst_mask */ | |
461 | TRUE), /* pcrel_offset */ | |
462 | ||
463 | HOWTO (R_ARM_JUMP24, /* type */ | |
464 | 2, /* rightshift */ | |
465 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
466 | 24, /* bitsize */ | |
467 | TRUE, /* pc_relative */ | |
468 | 0, /* bitpos */ | |
469 | complain_overflow_signed,/* complain_on_overflow */ | |
470 | bfd_elf_generic_reloc, /* special_function */ | |
471 | "R_ARM_JUMP24", /* name */ | |
472 | FALSE, /* partial_inplace */ | |
473 | 0x00ffffff, /* src_mask */ | |
474 | 0x00ffffff, /* dst_mask */ | |
475 | TRUE), /* pcrel_offset */ | |
476 | ||
c19d1205 ZW |
477 | HOWTO (R_ARM_THM_JUMP24, /* type */ |
478 | 1, /* rightshift */ | |
479 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
480 | 24, /* bitsize */ | |
481 | TRUE, /* pc_relative */ | |
7f266840 | 482 | 0, /* bitpos */ |
c19d1205 | 483 | complain_overflow_signed,/* complain_on_overflow */ |
7f266840 | 484 | bfd_elf_generic_reloc, /* special_function */ |
c19d1205 | 485 | "R_ARM_THM_JUMP24", /* name */ |
7f266840 | 486 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
487 | 0x07ff2fff, /* src_mask */ |
488 | 0x07ff2fff, /* dst_mask */ | |
489 | TRUE), /* pcrel_offset */ | |
7f266840 | 490 | |
c19d1205 | 491 | HOWTO (R_ARM_BASE_ABS, /* type */ |
7f266840 | 492 | 0, /* rightshift */ |
c19d1205 ZW |
493 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
494 | 32, /* bitsize */ | |
7f266840 DJ |
495 | FALSE, /* pc_relative */ |
496 | 0, /* bitpos */ | |
497 | complain_overflow_dont,/* complain_on_overflow */ | |
498 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 499 | "R_ARM_BASE_ABS", /* name */ |
7f266840 | 500 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
501 | 0xffffffff, /* src_mask */ |
502 | 0xffffffff, /* dst_mask */ | |
7f266840 DJ |
503 | FALSE), /* pcrel_offset */ |
504 | ||
505 | HOWTO (R_ARM_ALU_PCREL7_0, /* type */ | |
506 | 0, /* rightshift */ | |
507 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
508 | 12, /* bitsize */ | |
509 | TRUE, /* pc_relative */ | |
510 | 0, /* bitpos */ | |
511 | complain_overflow_dont,/* complain_on_overflow */ | |
512 | bfd_elf_generic_reloc, /* special_function */ | |
513 | "R_ARM_ALU_PCREL_7_0", /* name */ | |
514 | FALSE, /* partial_inplace */ | |
515 | 0x00000fff, /* src_mask */ | |
516 | 0x00000fff, /* dst_mask */ | |
517 | TRUE), /* pcrel_offset */ | |
518 | ||
519 | HOWTO (R_ARM_ALU_PCREL15_8, /* type */ | |
520 | 0, /* rightshift */ | |
521 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
522 | 12, /* bitsize */ | |
523 | TRUE, /* pc_relative */ | |
524 | 8, /* bitpos */ | |
525 | complain_overflow_dont,/* complain_on_overflow */ | |
526 | bfd_elf_generic_reloc, /* special_function */ | |
527 | "R_ARM_ALU_PCREL_15_8",/* name */ | |
528 | FALSE, /* partial_inplace */ | |
529 | 0x00000fff, /* src_mask */ | |
530 | 0x00000fff, /* dst_mask */ | |
531 | TRUE), /* pcrel_offset */ | |
532 | ||
533 | HOWTO (R_ARM_ALU_PCREL23_15, /* type */ | |
534 | 0, /* rightshift */ | |
535 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
536 | 12, /* bitsize */ | |
537 | TRUE, /* pc_relative */ | |
538 | 16, /* bitpos */ | |
539 | complain_overflow_dont,/* complain_on_overflow */ | |
540 | bfd_elf_generic_reloc, /* special_function */ | |
541 | "R_ARM_ALU_PCREL_23_15",/* name */ | |
542 | FALSE, /* partial_inplace */ | |
543 | 0x00000fff, /* src_mask */ | |
544 | 0x00000fff, /* dst_mask */ | |
545 | TRUE), /* pcrel_offset */ | |
546 | ||
547 | HOWTO (R_ARM_LDR_SBREL_11_0, /* type */ | |
548 | 0, /* rightshift */ | |
549 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
550 | 12, /* bitsize */ | |
551 | FALSE, /* pc_relative */ | |
552 | 0, /* bitpos */ | |
553 | complain_overflow_dont,/* complain_on_overflow */ | |
554 | bfd_elf_generic_reloc, /* special_function */ | |
555 | "R_ARM_LDR_SBREL_11_0",/* name */ | |
556 | FALSE, /* partial_inplace */ | |
557 | 0x00000fff, /* src_mask */ | |
558 | 0x00000fff, /* dst_mask */ | |
559 | FALSE), /* pcrel_offset */ | |
560 | ||
561 | HOWTO (R_ARM_ALU_SBREL_19_12, /* type */ | |
562 | 0, /* rightshift */ | |
563 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
564 | 8, /* bitsize */ | |
565 | FALSE, /* pc_relative */ | |
566 | 12, /* bitpos */ | |
567 | complain_overflow_dont,/* complain_on_overflow */ | |
568 | bfd_elf_generic_reloc, /* special_function */ | |
569 | "R_ARM_ALU_SBREL_19_12",/* name */ | |
570 | FALSE, /* partial_inplace */ | |
571 | 0x000ff000, /* src_mask */ | |
572 | 0x000ff000, /* dst_mask */ | |
573 | FALSE), /* pcrel_offset */ | |
574 | ||
575 | HOWTO (R_ARM_ALU_SBREL_27_20, /* type */ | |
576 | 0, /* rightshift */ | |
577 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
578 | 8, /* bitsize */ | |
579 | FALSE, /* pc_relative */ | |
580 | 20, /* bitpos */ | |
581 | complain_overflow_dont,/* complain_on_overflow */ | |
582 | bfd_elf_generic_reloc, /* special_function */ | |
583 | "R_ARM_ALU_SBREL_27_20",/* name */ | |
584 | FALSE, /* partial_inplace */ | |
585 | 0x0ff00000, /* src_mask */ | |
586 | 0x0ff00000, /* dst_mask */ | |
587 | FALSE), /* pcrel_offset */ | |
588 | ||
589 | HOWTO (R_ARM_TARGET1, /* type */ | |
590 | 0, /* rightshift */ | |
591 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
592 | 32, /* bitsize */ | |
593 | FALSE, /* pc_relative */ | |
594 | 0, /* bitpos */ | |
595 | complain_overflow_dont,/* complain_on_overflow */ | |
596 | bfd_elf_generic_reloc, /* special_function */ | |
597 | "R_ARM_TARGET1", /* name */ | |
598 | FALSE, /* partial_inplace */ | |
599 | 0xffffffff, /* src_mask */ | |
600 | 0xffffffff, /* dst_mask */ | |
601 | FALSE), /* pcrel_offset */ | |
602 | ||
603 | HOWTO (R_ARM_ROSEGREL32, /* type */ | |
604 | 0, /* rightshift */ | |
605 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
606 | 32, /* bitsize */ | |
607 | FALSE, /* pc_relative */ | |
608 | 0, /* bitpos */ | |
609 | complain_overflow_dont,/* complain_on_overflow */ | |
610 | bfd_elf_generic_reloc, /* special_function */ | |
611 | "R_ARM_ROSEGREL32", /* name */ | |
612 | FALSE, /* partial_inplace */ | |
613 | 0xffffffff, /* src_mask */ | |
614 | 0xffffffff, /* dst_mask */ | |
615 | FALSE), /* pcrel_offset */ | |
616 | ||
617 | HOWTO (R_ARM_V4BX, /* type */ | |
618 | 0, /* rightshift */ | |
619 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
620 | 32, /* bitsize */ | |
621 | FALSE, /* pc_relative */ | |
622 | 0, /* bitpos */ | |
623 | complain_overflow_dont,/* complain_on_overflow */ | |
624 | bfd_elf_generic_reloc, /* special_function */ | |
625 | "R_ARM_V4BX", /* name */ | |
626 | FALSE, /* partial_inplace */ | |
627 | 0xffffffff, /* src_mask */ | |
628 | 0xffffffff, /* dst_mask */ | |
629 | FALSE), /* pcrel_offset */ | |
630 | ||
631 | HOWTO (R_ARM_TARGET2, /* type */ | |
632 | 0, /* rightshift */ | |
633 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
634 | 32, /* bitsize */ | |
635 | FALSE, /* pc_relative */ | |
636 | 0, /* bitpos */ | |
637 | complain_overflow_signed,/* complain_on_overflow */ | |
638 | bfd_elf_generic_reloc, /* special_function */ | |
639 | "R_ARM_TARGET2", /* name */ | |
640 | FALSE, /* partial_inplace */ | |
641 | 0xffffffff, /* src_mask */ | |
642 | 0xffffffff, /* dst_mask */ | |
643 | TRUE), /* pcrel_offset */ | |
644 | ||
645 | HOWTO (R_ARM_PREL31, /* type */ | |
646 | 0, /* rightshift */ | |
647 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
648 | 31, /* bitsize */ | |
649 | TRUE, /* pc_relative */ | |
650 | 0, /* bitpos */ | |
651 | complain_overflow_signed,/* complain_on_overflow */ | |
652 | bfd_elf_generic_reloc, /* special_function */ | |
653 | "R_ARM_PREL31", /* name */ | |
654 | FALSE, /* partial_inplace */ | |
655 | 0x7fffffff, /* src_mask */ | |
656 | 0x7fffffff, /* dst_mask */ | |
657 | TRUE), /* pcrel_offset */ | |
c19d1205 ZW |
658 | |
659 | HOWTO (R_ARM_MOVW_ABS_NC, /* type */ | |
660 | 0, /* rightshift */ | |
661 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
662 | 16, /* bitsize */ | |
663 | FALSE, /* pc_relative */ | |
664 | 0, /* bitpos */ | |
665 | complain_overflow_dont,/* complain_on_overflow */ | |
666 | bfd_elf_generic_reloc, /* special_function */ | |
667 | "R_ARM_MOVW_ABS_NC", /* name */ | |
668 | FALSE, /* partial_inplace */ | |
669 | 0x0000ffff, /* src_mask */ | |
670 | 0x0000ffff, /* dst_mask */ | |
671 | FALSE), /* pcrel_offset */ | |
672 | ||
673 | HOWTO (R_ARM_MOVT_ABS, /* type */ | |
674 | 0, /* rightshift */ | |
675 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
676 | 16, /* bitsize */ | |
677 | FALSE, /* pc_relative */ | |
678 | 0, /* bitpos */ | |
679 | complain_overflow_bitfield,/* complain_on_overflow */ | |
680 | bfd_elf_generic_reloc, /* special_function */ | |
681 | "R_ARM_MOVT_ABS", /* name */ | |
682 | FALSE, /* partial_inplace */ | |
683 | 0x0000ffff, /* src_mask */ | |
684 | 0x0000ffff, /* dst_mask */ | |
685 | FALSE), /* pcrel_offset */ | |
686 | ||
687 | HOWTO (R_ARM_MOVW_PREL_NC, /* type */ | |
688 | 0, /* rightshift */ | |
689 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
690 | 16, /* bitsize */ | |
691 | TRUE, /* pc_relative */ | |
692 | 0, /* bitpos */ | |
693 | complain_overflow_dont,/* complain_on_overflow */ | |
694 | bfd_elf_generic_reloc, /* special_function */ | |
695 | "R_ARM_MOVW_PREL_NC", /* name */ | |
696 | FALSE, /* partial_inplace */ | |
697 | 0x0000ffff, /* src_mask */ | |
698 | 0x0000ffff, /* dst_mask */ | |
699 | TRUE), /* pcrel_offset */ | |
700 | ||
701 | HOWTO (R_ARM_MOVT_PREL, /* type */ | |
702 | 0, /* rightshift */ | |
703 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
704 | 16, /* bitsize */ | |
705 | TRUE, /* pc_relative */ | |
706 | 0, /* bitpos */ | |
707 | complain_overflow_bitfield,/* complain_on_overflow */ | |
708 | bfd_elf_generic_reloc, /* special_function */ | |
709 | "R_ARM_MOVT_PREL", /* name */ | |
710 | FALSE, /* partial_inplace */ | |
711 | 0x0000ffff, /* src_mask */ | |
712 | 0x0000ffff, /* dst_mask */ | |
713 | TRUE), /* pcrel_offset */ | |
714 | ||
715 | HOWTO (R_ARM_THM_MOVW_ABS_NC, /* type */ | |
716 | 0, /* rightshift */ | |
717 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
718 | 16, /* bitsize */ | |
719 | FALSE, /* pc_relative */ | |
720 | 0, /* bitpos */ | |
721 | complain_overflow_dont,/* complain_on_overflow */ | |
722 | bfd_elf_generic_reloc, /* special_function */ | |
723 | "R_ARM_THM_MOVW_ABS_NC",/* name */ | |
724 | FALSE, /* partial_inplace */ | |
725 | 0x040f70ff, /* src_mask */ | |
726 | 0x040f70ff, /* dst_mask */ | |
727 | FALSE), /* pcrel_offset */ | |
728 | ||
729 | HOWTO (R_ARM_THM_MOVT_ABS, /* type */ | |
730 | 0, /* rightshift */ | |
731 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
732 | 16, /* bitsize */ | |
733 | FALSE, /* pc_relative */ | |
734 | 0, /* bitpos */ | |
735 | complain_overflow_bitfield,/* complain_on_overflow */ | |
736 | bfd_elf_generic_reloc, /* special_function */ | |
737 | "R_ARM_THM_MOVT_ABS", /* name */ | |
738 | FALSE, /* partial_inplace */ | |
739 | 0x040f70ff, /* src_mask */ | |
740 | 0x040f70ff, /* dst_mask */ | |
741 | FALSE), /* pcrel_offset */ | |
742 | ||
743 | HOWTO (R_ARM_THM_MOVW_PREL_NC,/* type */ | |
744 | 0, /* rightshift */ | |
745 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
746 | 16, /* bitsize */ | |
747 | TRUE, /* pc_relative */ | |
748 | 0, /* bitpos */ | |
749 | complain_overflow_dont,/* complain_on_overflow */ | |
750 | bfd_elf_generic_reloc, /* special_function */ | |
751 | "R_ARM_THM_MOVW_PREL_NC",/* name */ | |
752 | FALSE, /* partial_inplace */ | |
753 | 0x040f70ff, /* src_mask */ | |
754 | 0x040f70ff, /* dst_mask */ | |
755 | TRUE), /* pcrel_offset */ | |
756 | ||
757 | HOWTO (R_ARM_THM_MOVT_PREL, /* type */ | |
758 | 0, /* rightshift */ | |
759 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
760 | 16, /* bitsize */ | |
761 | TRUE, /* pc_relative */ | |
762 | 0, /* bitpos */ | |
763 | complain_overflow_bitfield,/* complain_on_overflow */ | |
764 | bfd_elf_generic_reloc, /* special_function */ | |
765 | "R_ARM_THM_MOVT_PREL", /* name */ | |
766 | FALSE, /* partial_inplace */ | |
767 | 0x040f70ff, /* src_mask */ | |
768 | 0x040f70ff, /* dst_mask */ | |
769 | TRUE), /* pcrel_offset */ | |
770 | ||
771 | HOWTO (R_ARM_THM_JUMP19, /* type */ | |
772 | 1, /* rightshift */ | |
773 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
774 | 19, /* bitsize */ | |
775 | TRUE, /* pc_relative */ | |
776 | 0, /* bitpos */ | |
777 | complain_overflow_signed,/* complain_on_overflow */ | |
778 | bfd_elf_generic_reloc, /* special_function */ | |
779 | "R_ARM_THM_JUMP19", /* name */ | |
780 | FALSE, /* partial_inplace */ | |
781 | 0x043f2fff, /* src_mask */ | |
782 | 0x043f2fff, /* dst_mask */ | |
783 | TRUE), /* pcrel_offset */ | |
784 | ||
785 | HOWTO (R_ARM_THM_JUMP6, /* type */ | |
786 | 1, /* rightshift */ | |
787 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
788 | 6, /* bitsize */ | |
789 | TRUE, /* pc_relative */ | |
790 | 0, /* bitpos */ | |
791 | complain_overflow_unsigned,/* complain_on_overflow */ | |
792 | bfd_elf_generic_reloc, /* special_function */ | |
793 | "R_ARM_THM_JUMP6", /* name */ | |
794 | FALSE, /* partial_inplace */ | |
795 | 0x02f8, /* src_mask */ | |
796 | 0x02f8, /* dst_mask */ | |
797 | TRUE), /* pcrel_offset */ | |
798 | ||
799 | /* These are declared as 13-bit signed relocations because we can | |
800 | address -4095 .. 4095(base) by altering ADDW to SUBW or vice | |
801 | versa. */ | |
802 | HOWTO (R_ARM_THM_ALU_PREL_11_0,/* type */ | |
803 | 0, /* rightshift */ | |
804 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
805 | 13, /* bitsize */ | |
806 | TRUE, /* pc_relative */ | |
807 | 0, /* bitpos */ | |
808 | complain_overflow_signed,/* complain_on_overflow */ | |
809 | bfd_elf_generic_reloc, /* special_function */ | |
810 | "R_ARM_THM_ALU_PREL_11_0",/* name */ | |
811 | FALSE, /* partial_inplace */ | |
812 | 0x040070ff, /* src_mask */ | |
813 | 0x040070ff, /* dst_mask */ | |
814 | TRUE), /* pcrel_offset */ | |
815 | ||
816 | HOWTO (R_ARM_THM_PC12, /* type */ | |
817 | 0, /* rightshift */ | |
818 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
819 | 13, /* bitsize */ | |
820 | TRUE, /* pc_relative */ | |
821 | 0, /* bitpos */ | |
822 | complain_overflow_signed,/* complain_on_overflow */ | |
823 | bfd_elf_generic_reloc, /* special_function */ | |
824 | "R_ARM_THM_PC12", /* name */ | |
825 | FALSE, /* partial_inplace */ | |
826 | 0x040070ff, /* src_mask */ | |
827 | 0x040070ff, /* dst_mask */ | |
828 | TRUE), /* pcrel_offset */ | |
829 | ||
830 | HOWTO (R_ARM_ABS32_NOI, /* type */ | |
831 | 0, /* rightshift */ | |
832 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
833 | 32, /* bitsize */ | |
834 | FALSE, /* pc_relative */ | |
835 | 0, /* bitpos */ | |
836 | complain_overflow_dont,/* complain_on_overflow */ | |
837 | bfd_elf_generic_reloc, /* special_function */ | |
838 | "R_ARM_ABS32_NOI", /* name */ | |
839 | FALSE, /* partial_inplace */ | |
840 | 0xffffffff, /* src_mask */ | |
841 | 0xffffffff, /* dst_mask */ | |
842 | FALSE), /* pcrel_offset */ | |
843 | ||
844 | HOWTO (R_ARM_REL32_NOI, /* type */ | |
845 | 0, /* rightshift */ | |
846 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
847 | 32, /* bitsize */ | |
848 | TRUE, /* pc_relative */ | |
849 | 0, /* bitpos */ | |
850 | complain_overflow_dont,/* complain_on_overflow */ | |
851 | bfd_elf_generic_reloc, /* special_function */ | |
852 | "R_ARM_REL32_NOI", /* name */ | |
853 | FALSE, /* partial_inplace */ | |
854 | 0xffffffff, /* src_mask */ | |
855 | 0xffffffff, /* dst_mask */ | |
856 | FALSE), /* pcrel_offset */ | |
7f266840 DJ |
857 | }; |
858 | ||
c19d1205 ZW |
859 | /* Relocations 57 .. 83 are the "group relocations" which we do not |
860 | support. */ | |
861 | ||
862 | static reloc_howto_type elf32_arm_howto_table_2[] = | |
863 | { | |
864 | HOWTO (R_ARM_MOVW_BREL_NC, /* type */ | |
865 | 0, /* rightshift */ | |
866 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
867 | 16, /* bitsize */ | |
868 | FALSE, /* pc_relative */ | |
869 | 0, /* bitpos */ | |
870 | complain_overflow_dont,/* complain_on_overflow */ | |
871 | bfd_elf_generic_reloc, /* special_function */ | |
872 | "R_ARM_MOVW_BREL_NC", /* name */ | |
873 | FALSE, /* partial_inplace */ | |
874 | 0x0000ffff, /* src_mask */ | |
875 | 0x0000ffff, /* dst_mask */ | |
876 | FALSE), /* pcrel_offset */ | |
877 | ||
878 | HOWTO (R_ARM_MOVT_BREL, /* type */ | |
879 | 0, /* rightshift */ | |
880 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
881 | 16, /* bitsize */ | |
882 | FALSE, /* pc_relative */ | |
883 | 0, /* bitpos */ | |
884 | complain_overflow_bitfield,/* complain_on_overflow */ | |
885 | bfd_elf_generic_reloc, /* special_function */ | |
886 | "R_ARM_MOVT_BREL", /* name */ | |
887 | FALSE, /* partial_inplace */ | |
888 | 0x0000ffff, /* src_mask */ | |
889 | 0x0000ffff, /* dst_mask */ | |
890 | FALSE), /* pcrel_offset */ | |
891 | ||
892 | HOWTO (R_ARM_MOVW_BREL, /* type */ | |
893 | 0, /* rightshift */ | |
894 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
895 | 16, /* bitsize */ | |
896 | FALSE, /* pc_relative */ | |
897 | 0, /* bitpos */ | |
898 | complain_overflow_dont,/* complain_on_overflow */ | |
899 | bfd_elf_generic_reloc, /* special_function */ | |
900 | "R_ARM_MOVW_BREL", /* name */ | |
901 | FALSE, /* partial_inplace */ | |
902 | 0x0000ffff, /* src_mask */ | |
903 | 0x0000ffff, /* dst_mask */ | |
904 | FALSE), /* pcrel_offset */ | |
905 | ||
906 | HOWTO (R_ARM_THM_MOVW_BREL_NC,/* type */ | |
907 | 0, /* rightshift */ | |
908 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
909 | 16, /* bitsize */ | |
910 | FALSE, /* pc_relative */ | |
911 | 0, /* bitpos */ | |
912 | complain_overflow_dont,/* complain_on_overflow */ | |
913 | bfd_elf_generic_reloc, /* special_function */ | |
914 | "R_ARM_THM_MOVW_BREL_NC",/* name */ | |
915 | FALSE, /* partial_inplace */ | |
916 | 0x040f70ff, /* src_mask */ | |
917 | 0x040f70ff, /* dst_mask */ | |
918 | FALSE), /* pcrel_offset */ | |
919 | ||
920 | HOWTO (R_ARM_THM_MOVT_BREL, /* type */ | |
921 | 0, /* rightshift */ | |
922 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
923 | 16, /* bitsize */ | |
924 | FALSE, /* pc_relative */ | |
925 | 0, /* bitpos */ | |
926 | complain_overflow_bitfield,/* complain_on_overflow */ | |
927 | bfd_elf_generic_reloc, /* special_function */ | |
928 | "R_ARM_THM_MOVT_BREL", /* name */ | |
929 | FALSE, /* partial_inplace */ | |
930 | 0x040f70ff, /* src_mask */ | |
931 | 0x040f70ff, /* dst_mask */ | |
932 | FALSE), /* pcrel_offset */ | |
933 | ||
934 | HOWTO (R_ARM_THM_MOVW_BREL, /* type */ | |
935 | 0, /* rightshift */ | |
936 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
937 | 16, /* bitsize */ | |
938 | FALSE, /* pc_relative */ | |
939 | 0, /* bitpos */ | |
940 | complain_overflow_dont,/* complain_on_overflow */ | |
941 | bfd_elf_generic_reloc, /* special_function */ | |
942 | "R_ARM_THM_MOVW_BREL", /* name */ | |
943 | FALSE, /* partial_inplace */ | |
944 | 0x040f70ff, /* src_mask */ | |
945 | 0x040f70ff, /* dst_mask */ | |
946 | FALSE), /* pcrel_offset */ | |
947 | ||
948 | EMPTY_HOWTO (90), /* unallocated */ | |
949 | EMPTY_HOWTO (91), | |
950 | EMPTY_HOWTO (92), | |
951 | EMPTY_HOWTO (93), | |
952 | ||
953 | HOWTO (R_ARM_PLT32_ABS, /* type */ | |
954 | 0, /* rightshift */ | |
955 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
956 | 32, /* bitsize */ | |
957 | FALSE, /* pc_relative */ | |
958 | 0, /* bitpos */ | |
959 | complain_overflow_dont,/* complain_on_overflow */ | |
960 | bfd_elf_generic_reloc, /* special_function */ | |
961 | "R_ARM_PLT32_ABS", /* name */ | |
962 | FALSE, /* partial_inplace */ | |
963 | 0xffffffff, /* src_mask */ | |
964 | 0xffffffff, /* dst_mask */ | |
965 | FALSE), /* pcrel_offset */ | |
966 | ||
967 | HOWTO (R_ARM_GOT_ABS, /* type */ | |
968 | 0, /* rightshift */ | |
969 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
970 | 32, /* bitsize */ | |
971 | FALSE, /* pc_relative */ | |
972 | 0, /* bitpos */ | |
973 | complain_overflow_dont,/* complain_on_overflow */ | |
974 | bfd_elf_generic_reloc, /* special_function */ | |
975 | "R_ARM_GOT_ABS", /* name */ | |
976 | FALSE, /* partial_inplace */ | |
977 | 0xffffffff, /* src_mask */ | |
978 | 0xffffffff, /* dst_mask */ | |
979 | FALSE), /* pcrel_offset */ | |
980 | ||
981 | HOWTO (R_ARM_GOT_PREL, /* type */ | |
982 | 0, /* rightshift */ | |
983 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
984 | 32, /* bitsize */ | |
985 | TRUE, /* pc_relative */ | |
986 | 0, /* bitpos */ | |
987 | complain_overflow_dont, /* complain_on_overflow */ | |
988 | bfd_elf_generic_reloc, /* special_function */ | |
989 | "R_ARM_GOT_PREL", /* name */ | |
990 | FALSE, /* partial_inplace */ | |
991 | 0xffffffff, /* src_mask */ | |
992 | 0xffffffff, /* dst_mask */ | |
993 | TRUE), /* pcrel_offset */ | |
994 | ||
995 | HOWTO (R_ARM_GOT_BREL12, /* type */ | |
996 | 0, /* rightshift */ | |
997 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
998 | 12, /* bitsize */ | |
999 | FALSE, /* pc_relative */ | |
1000 | 0, /* bitpos */ | |
1001 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1002 | bfd_elf_generic_reloc, /* special_function */ | |
1003 | "R_ARM_GOT_BREL12", /* name */ | |
1004 | FALSE, /* partial_inplace */ | |
1005 | 0x00000fff, /* src_mask */ | |
1006 | 0x00000fff, /* dst_mask */ | |
1007 | FALSE), /* pcrel_offset */ | |
1008 | ||
1009 | HOWTO (R_ARM_GOTOFF12, /* type */ | |
1010 | 0, /* rightshift */ | |
1011 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1012 | 12, /* bitsize */ | |
1013 | FALSE, /* pc_relative */ | |
1014 | 0, /* bitpos */ | |
1015 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1016 | bfd_elf_generic_reloc, /* special_function */ | |
1017 | "R_ARM_GOTOFF12", /* name */ | |
1018 | FALSE, /* partial_inplace */ | |
1019 | 0x00000fff, /* src_mask */ | |
1020 | 0x00000fff, /* dst_mask */ | |
1021 | FALSE), /* pcrel_offset */ | |
1022 | ||
1023 | EMPTY_HOWTO (R_ARM_GOTRELAX), /* reserved for future GOT-load optimizations */ | |
1024 | ||
1025 | /* GNU extension to record C++ vtable member usage */ | |
1026 | HOWTO (R_ARM_GNU_VTENTRY, /* type */ | |
ba93b8ac DJ |
1027 | 0, /* rightshift */ |
1028 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c19d1205 | 1029 | 0, /* bitsize */ |
ba93b8ac DJ |
1030 | FALSE, /* pc_relative */ |
1031 | 0, /* bitpos */ | |
c19d1205 ZW |
1032 | complain_overflow_dont, /* complain_on_overflow */ |
1033 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
1034 | "R_ARM_GNU_VTENTRY", /* name */ | |
1035 | FALSE, /* partial_inplace */ | |
1036 | 0, /* src_mask */ | |
1037 | 0, /* dst_mask */ | |
1038 | FALSE), /* pcrel_offset */ | |
1039 | ||
1040 | /* GNU extension to record C++ vtable hierarchy */ | |
1041 | HOWTO (R_ARM_GNU_VTINHERIT, /* type */ | |
1042 | 0, /* rightshift */ | |
1043 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1044 | 0, /* bitsize */ | |
1045 | FALSE, /* pc_relative */ | |
1046 | 0, /* bitpos */ | |
1047 | complain_overflow_dont, /* complain_on_overflow */ | |
1048 | NULL, /* special_function */ | |
1049 | "R_ARM_GNU_VTINHERIT", /* name */ | |
1050 | FALSE, /* partial_inplace */ | |
1051 | 0, /* src_mask */ | |
1052 | 0, /* dst_mask */ | |
1053 | FALSE), /* pcrel_offset */ | |
1054 | ||
1055 | HOWTO (R_ARM_THM_JUMP11, /* type */ | |
1056 | 1, /* rightshift */ | |
1057 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1058 | 11, /* bitsize */ | |
1059 | TRUE, /* pc_relative */ | |
1060 | 0, /* bitpos */ | |
1061 | complain_overflow_signed, /* complain_on_overflow */ | |
1062 | bfd_elf_generic_reloc, /* special_function */ | |
1063 | "R_ARM_THM_JUMP11", /* name */ | |
1064 | FALSE, /* partial_inplace */ | |
1065 | 0x000007ff, /* src_mask */ | |
1066 | 0x000007ff, /* dst_mask */ | |
1067 | TRUE), /* pcrel_offset */ | |
1068 | ||
1069 | HOWTO (R_ARM_THM_JUMP8, /* type */ | |
1070 | 1, /* rightshift */ | |
1071 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1072 | 8, /* bitsize */ | |
1073 | TRUE, /* pc_relative */ | |
1074 | 0, /* bitpos */ | |
1075 | complain_overflow_signed, /* complain_on_overflow */ | |
1076 | bfd_elf_generic_reloc, /* special_function */ | |
1077 | "R_ARM_THM_JUMP8", /* name */ | |
1078 | FALSE, /* partial_inplace */ | |
1079 | 0x000000ff, /* src_mask */ | |
1080 | 0x000000ff, /* dst_mask */ | |
1081 | TRUE), /* pcrel_offset */ | |
ba93b8ac | 1082 | |
c19d1205 ZW |
1083 | /* TLS relocations */ |
1084 | HOWTO (R_ARM_TLS_GD32, /* type */ | |
ba93b8ac DJ |
1085 | 0, /* rightshift */ |
1086 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1087 | 32, /* bitsize */ | |
1088 | FALSE, /* pc_relative */ | |
1089 | 0, /* bitpos */ | |
1090 | complain_overflow_bitfield,/* complain_on_overflow */ | |
c19d1205 ZW |
1091 | NULL, /* special_function */ |
1092 | "R_ARM_TLS_GD32", /* name */ | |
ba93b8ac DJ |
1093 | TRUE, /* partial_inplace */ |
1094 | 0xffffffff, /* src_mask */ | |
1095 | 0xffffffff, /* dst_mask */ | |
c19d1205 | 1096 | FALSE), /* pcrel_offset */ |
ba93b8ac | 1097 | |
ba93b8ac DJ |
1098 | HOWTO (R_ARM_TLS_LDM32, /* type */ |
1099 | 0, /* rightshift */ | |
1100 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1101 | 32, /* bitsize */ | |
1102 | FALSE, /* pc_relative */ | |
1103 | 0, /* bitpos */ | |
1104 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1105 | bfd_elf_generic_reloc, /* special_function */ | |
1106 | "R_ARM_TLS_LDM32", /* name */ | |
1107 | TRUE, /* partial_inplace */ | |
1108 | 0xffffffff, /* src_mask */ | |
1109 | 0xffffffff, /* dst_mask */ | |
c19d1205 | 1110 | FALSE), /* pcrel_offset */ |
ba93b8ac | 1111 | |
c19d1205 | 1112 | HOWTO (R_ARM_TLS_LDO32, /* type */ |
ba93b8ac DJ |
1113 | 0, /* rightshift */ |
1114 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1115 | 32, /* bitsize */ | |
1116 | FALSE, /* pc_relative */ | |
1117 | 0, /* bitpos */ | |
1118 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1119 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 1120 | "R_ARM_TLS_LDO32", /* name */ |
ba93b8ac DJ |
1121 | TRUE, /* partial_inplace */ |
1122 | 0xffffffff, /* src_mask */ | |
1123 | 0xffffffff, /* dst_mask */ | |
c19d1205 | 1124 | FALSE), /* pcrel_offset */ |
ba93b8ac | 1125 | |
ba93b8ac DJ |
1126 | HOWTO (R_ARM_TLS_IE32, /* type */ |
1127 | 0, /* rightshift */ | |
1128 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1129 | 32, /* bitsize */ | |
1130 | FALSE, /* pc_relative */ | |
1131 | 0, /* bitpos */ | |
1132 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1133 | NULL, /* special_function */ | |
1134 | "R_ARM_TLS_IE32", /* name */ | |
1135 | TRUE, /* partial_inplace */ | |
1136 | 0xffffffff, /* src_mask */ | |
1137 | 0xffffffff, /* dst_mask */ | |
c19d1205 | 1138 | FALSE), /* pcrel_offset */ |
7f266840 | 1139 | |
c19d1205 | 1140 | HOWTO (R_ARM_TLS_LE32, /* type */ |
7f266840 DJ |
1141 | 0, /* rightshift */ |
1142 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c19d1205 | 1143 | 32, /* bitsize */ |
7f266840 DJ |
1144 | FALSE, /* pc_relative */ |
1145 | 0, /* bitpos */ | |
c19d1205 ZW |
1146 | complain_overflow_bitfield,/* complain_on_overflow */ |
1147 | bfd_elf_generic_reloc, /* special_function */ | |
1148 | "R_ARM_TLS_LE32", /* name */ | |
1149 | TRUE, /* partial_inplace */ | |
1150 | 0xffffffff, /* src_mask */ | |
1151 | 0xffffffff, /* dst_mask */ | |
1152 | FALSE), /* pcrel_offset */ | |
7f266840 | 1153 | |
c19d1205 ZW |
1154 | HOWTO (R_ARM_TLS_LDO12, /* type */ |
1155 | 0, /* rightshift */ | |
1156 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1157 | 12, /* bitsize */ | |
1158 | FALSE, /* pc_relative */ | |
7f266840 | 1159 | 0, /* bitpos */ |
c19d1205 | 1160 | complain_overflow_bitfield,/* complain_on_overflow */ |
7f266840 | 1161 | bfd_elf_generic_reloc, /* special_function */ |
c19d1205 | 1162 | "R_ARM_TLS_LDO12", /* name */ |
7f266840 | 1163 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
1164 | 0x00000fff, /* src_mask */ |
1165 | 0x00000fff, /* dst_mask */ | |
1166 | FALSE), /* pcrel_offset */ | |
7f266840 | 1167 | |
c19d1205 ZW |
1168 | HOWTO (R_ARM_TLS_LE12, /* type */ |
1169 | 0, /* rightshift */ | |
1170 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1171 | 12, /* bitsize */ | |
1172 | FALSE, /* pc_relative */ | |
7f266840 | 1173 | 0, /* bitpos */ |
c19d1205 | 1174 | complain_overflow_bitfield,/* complain_on_overflow */ |
7f266840 | 1175 | bfd_elf_generic_reloc, /* special_function */ |
c19d1205 | 1176 | "R_ARM_TLS_LE12", /* name */ |
7f266840 | 1177 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
1178 | 0x00000fff, /* src_mask */ |
1179 | 0x00000fff, /* dst_mask */ | |
1180 | FALSE), /* pcrel_offset */ | |
7f266840 | 1181 | |
c19d1205 | 1182 | HOWTO (R_ARM_TLS_IE12GP, /* type */ |
7f266840 DJ |
1183 | 0, /* rightshift */ |
1184 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c19d1205 ZW |
1185 | 12, /* bitsize */ |
1186 | FALSE, /* pc_relative */ | |
7f266840 | 1187 | 0, /* bitpos */ |
c19d1205 | 1188 | complain_overflow_bitfield,/* complain_on_overflow */ |
7f266840 | 1189 | bfd_elf_generic_reloc, /* special_function */ |
c19d1205 | 1190 | "R_ARM_TLS_IE12GP", /* name */ |
7f266840 | 1191 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
1192 | 0x00000fff, /* src_mask */ |
1193 | 0x00000fff, /* dst_mask */ | |
1194 | FALSE), /* pcrel_offset */ | |
1195 | }; | |
1196 | ||
1197 | /* 112-127 private relocations | |
1198 | 128 R_ARM_ME_TOO, obsolete | |
1199 | 129-255 unallocated in AAELF. | |
7f266840 | 1200 | |
c19d1205 ZW |
1201 | 249-255 extended, currently unused, relocations: */ |
1202 | ||
1203 | static reloc_howto_type elf32_arm_howto_table_3[4] = | |
7f266840 DJ |
1204 | { |
1205 | HOWTO (R_ARM_RREL32, /* type */ | |
1206 | 0, /* rightshift */ | |
1207 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1208 | 0, /* bitsize */ | |
1209 | FALSE, /* pc_relative */ | |
1210 | 0, /* bitpos */ | |
1211 | complain_overflow_dont,/* complain_on_overflow */ | |
1212 | bfd_elf_generic_reloc, /* special_function */ | |
1213 | "R_ARM_RREL32", /* name */ | |
1214 | FALSE, /* partial_inplace */ | |
1215 | 0, /* src_mask */ | |
1216 | 0, /* dst_mask */ | |
1217 | FALSE), /* pcrel_offset */ | |
1218 | ||
1219 | HOWTO (R_ARM_RABS32, /* type */ | |
1220 | 0, /* rightshift */ | |
1221 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1222 | 0, /* bitsize */ | |
1223 | FALSE, /* pc_relative */ | |
1224 | 0, /* bitpos */ | |
1225 | complain_overflow_dont,/* complain_on_overflow */ | |
1226 | bfd_elf_generic_reloc, /* special_function */ | |
1227 | "R_ARM_RABS32", /* name */ | |
1228 | FALSE, /* partial_inplace */ | |
1229 | 0, /* src_mask */ | |
1230 | 0, /* dst_mask */ | |
1231 | FALSE), /* pcrel_offset */ | |
1232 | ||
1233 | HOWTO (R_ARM_RPC24, /* type */ | |
1234 | 0, /* rightshift */ | |
1235 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1236 | 0, /* bitsize */ | |
1237 | FALSE, /* pc_relative */ | |
1238 | 0, /* bitpos */ | |
1239 | complain_overflow_dont,/* complain_on_overflow */ | |
1240 | bfd_elf_generic_reloc, /* special_function */ | |
1241 | "R_ARM_RPC24", /* name */ | |
1242 | FALSE, /* partial_inplace */ | |
1243 | 0, /* src_mask */ | |
1244 | 0, /* dst_mask */ | |
1245 | FALSE), /* pcrel_offset */ | |
1246 | ||
1247 | HOWTO (R_ARM_RBASE, /* type */ | |
1248 | 0, /* rightshift */ | |
1249 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1250 | 0, /* bitsize */ | |
1251 | FALSE, /* pc_relative */ | |
1252 | 0, /* bitpos */ | |
1253 | complain_overflow_dont,/* complain_on_overflow */ | |
1254 | bfd_elf_generic_reloc, /* special_function */ | |
1255 | "R_ARM_RBASE", /* name */ | |
1256 | FALSE, /* partial_inplace */ | |
1257 | 0, /* src_mask */ | |
1258 | 0, /* dst_mask */ | |
1259 | FALSE) /* pcrel_offset */ | |
1260 | }; | |
1261 | ||
1262 | static reloc_howto_type * | |
1263 | elf32_arm_howto_from_type (unsigned int r_type) | |
1264 | { | |
c19d1205 ZW |
1265 | if (r_type < NUM_ELEM (elf32_arm_howto_table_1)) |
1266 | return &elf32_arm_howto_table_1[r_type]; | |
ba93b8ac | 1267 | |
c19d1205 ZW |
1268 | if (r_type >= R_ARM_MOVW_BREL_NC |
1269 | && r_type < R_ARM_MOVW_BREL_NC + NUM_ELEM (elf32_arm_howto_table_2)) | |
1270 | return &elf32_arm_howto_table_2[r_type - R_ARM_MOVW_BREL_NC]; | |
7f266840 | 1271 | |
c19d1205 ZW |
1272 | if (r_type >= R_ARM_RREL32 |
1273 | && r_type < R_ARM_RREL32 + NUM_ELEM (elf32_arm_howto_table_2)) | |
1274 | return &elf32_arm_howto_table_3[r_type - R_ARM_RREL32]; | |
7f266840 | 1275 | |
c19d1205 | 1276 | return NULL; |
7f266840 DJ |
1277 | } |
1278 | ||
1279 | static void | |
1280 | elf32_arm_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED, arelent * bfd_reloc, | |
1281 | Elf_Internal_Rela * elf_reloc) | |
1282 | { | |
1283 | unsigned int r_type; | |
1284 | ||
1285 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
1286 | bfd_reloc->howto = elf32_arm_howto_from_type (r_type); | |
1287 | } | |
1288 | ||
1289 | struct elf32_arm_reloc_map | |
1290 | { | |
1291 | bfd_reloc_code_real_type bfd_reloc_val; | |
1292 | unsigned char elf_reloc_val; | |
1293 | }; | |
1294 | ||
1295 | /* All entries in this list must also be present in elf32_arm_howto_table. */ | |
1296 | static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] = | |
1297 | { | |
1298 | {BFD_RELOC_NONE, R_ARM_NONE}, | |
1299 | {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24}, | |
1300 | {BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25}, | |
1301 | {BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22}, | |
1302 | {BFD_RELOC_32, R_ARM_ABS32}, | |
1303 | {BFD_RELOC_32_PCREL, R_ARM_REL32}, | |
1304 | {BFD_RELOC_8, R_ARM_ABS8}, | |
1305 | {BFD_RELOC_16, R_ARM_ABS16}, | |
1306 | {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12}, | |
1307 | {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5}, | |
c19d1205 ZW |
1308 | {BFD_RELOC_THUMB_PCREL_BRANCH25, R_ARM_THM_JUMP24}, |
1309 | {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_CALL}, | |
1310 | {BFD_RELOC_THUMB_PCREL_BRANCH12, R_ARM_THM_JUMP11}, | |
1311 | {BFD_RELOC_THUMB_PCREL_BRANCH20, R_ARM_THM_JUMP19}, | |
1312 | {BFD_RELOC_THUMB_PCREL_BRANCH9, R_ARM_THM_JUMP8}, | |
1313 | {BFD_RELOC_THUMB_PCREL_BRANCH7, R_ARM_THM_JUMP6}, | |
7f266840 DJ |
1314 | {BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT}, |
1315 | {BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT}, | |
1316 | {BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE}, | |
c19d1205 | 1317 | {BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF32}, |
7f266840 DJ |
1318 | {BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC}, |
1319 | {BFD_RELOC_ARM_GOT32, R_ARM_GOT32}, | |
1320 | {BFD_RELOC_ARM_PLT32, R_ARM_PLT32}, | |
1321 | {BFD_RELOC_ARM_TARGET1, R_ARM_TARGET1}, | |
1322 | {BFD_RELOC_ARM_ROSEGREL32, R_ARM_ROSEGREL32}, | |
1323 | {BFD_RELOC_ARM_SBREL32, R_ARM_SBREL32}, | |
1324 | {BFD_RELOC_ARM_PREL31, R_ARM_PREL31}, | |
ba93b8ac DJ |
1325 | {BFD_RELOC_ARM_TARGET2, R_ARM_TARGET2}, |
1326 | {BFD_RELOC_ARM_PLT32, R_ARM_PLT32}, | |
1327 | {BFD_RELOC_ARM_TLS_GD32, R_ARM_TLS_GD32}, | |
1328 | {BFD_RELOC_ARM_TLS_LDO32, R_ARM_TLS_LDO32}, | |
1329 | {BFD_RELOC_ARM_TLS_LDM32, R_ARM_TLS_LDM32}, | |
1330 | {BFD_RELOC_ARM_TLS_DTPMOD32, R_ARM_TLS_DTPMOD32}, | |
1331 | {BFD_RELOC_ARM_TLS_DTPOFF32, R_ARM_TLS_DTPOFF32}, | |
1332 | {BFD_RELOC_ARM_TLS_TPOFF32, R_ARM_TLS_TPOFF32}, | |
1333 | {BFD_RELOC_ARM_TLS_IE32, R_ARM_TLS_IE32}, | |
1334 | {BFD_RELOC_ARM_TLS_LE32, R_ARM_TLS_LE32}, | |
c19d1205 ZW |
1335 | {BFD_RELOC_VTABLE_INHERIT, R_ARM_GNU_VTINHERIT}, |
1336 | {BFD_RELOC_VTABLE_ENTRY, R_ARM_GNU_VTENTRY}, | |
7f266840 DJ |
1337 | }; |
1338 | ||
1339 | static reloc_howto_type * | |
f1c71a59 ZW |
1340 | elf32_arm_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1341 | bfd_reloc_code_real_type code) | |
7f266840 DJ |
1342 | { |
1343 | unsigned int i; | |
c19d1205 ZW |
1344 | for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++) |
1345 | if (elf32_arm_reloc_map[i].bfd_reloc_val == code) | |
1346 | return elf32_arm_howto_from_type (elf32_arm_reloc_map[i].elf_reloc_val); | |
7f266840 | 1347 | |
c19d1205 | 1348 | return NULL; |
7f266840 DJ |
1349 | } |
1350 | ||
1351 | /* Support for core dump NOTE sections */ | |
1352 | static bfd_boolean | |
f1c71a59 | 1353 | elf32_arm_nabi_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
7f266840 DJ |
1354 | { |
1355 | int offset; | |
1356 | size_t size; | |
1357 | ||
1358 | switch (note->descsz) | |
1359 | { | |
1360 | default: | |
1361 | return FALSE; | |
1362 | ||
1363 | case 148: /* Linux/ARM 32-bit*/ | |
1364 | /* pr_cursig */ | |
1365 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
1366 | ||
1367 | /* pr_pid */ | |
1368 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
1369 | ||
1370 | /* pr_reg */ | |
1371 | offset = 72; | |
1372 | size = 72; | |
1373 | ||
1374 | break; | |
1375 | } | |
1376 | ||
1377 | /* Make a ".reg/999" section. */ | |
1378 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
1379 | size, note->descpos + offset); | |
1380 | } | |
1381 | ||
1382 | static bfd_boolean | |
f1c71a59 | 1383 | elf32_arm_nabi_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
7f266840 DJ |
1384 | { |
1385 | switch (note->descsz) | |
1386 | { | |
1387 | default: | |
1388 | return FALSE; | |
1389 | ||
1390 | case 124: /* Linux/ARM elf_prpsinfo */ | |
1391 | elf_tdata (abfd)->core_program | |
1392 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
1393 | elf_tdata (abfd)->core_command | |
1394 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
1395 | } | |
1396 | ||
1397 | /* Note that for some reason, a spurious space is tacked | |
1398 | onto the end of the args in some (at least one anyway) | |
1399 | implementations, so strip it off if it exists. */ | |
1400 | ||
1401 | { | |
1402 | char *command = elf_tdata (abfd)->core_command; | |
1403 | int n = strlen (command); | |
1404 | ||
1405 | if (0 < n && command[n - 1] == ' ') | |
1406 | command[n - 1] = '\0'; | |
1407 | } | |
1408 | ||
1409 | return TRUE; | |
1410 | } | |
1411 | ||
1412 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec | |
1413 | #define TARGET_LITTLE_NAME "elf32-littlearm" | |
1414 | #define TARGET_BIG_SYM bfd_elf32_bigarm_vec | |
1415 | #define TARGET_BIG_NAME "elf32-bigarm" | |
1416 | ||
1417 | #define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus | |
1418 | #define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo | |
1419 | ||
252b5132 RH |
1420 | typedef unsigned long int insn32; |
1421 | typedef unsigned short int insn16; | |
1422 | ||
8cb51566 | 1423 | /* In lieu of proper flags, assume all EABIv4 objects are interworkable. */ |
57e8b36a | 1424 | #define INTERWORK_FLAG(abfd) \ |
8cb51566 | 1425 | (EF_ARM_EABI_VERSION (elf_elfheader (abfd)->e_flags) == EF_ARM_EABI_VER4 \ |
85a84e7a | 1426 | || (elf_elfheader (abfd)->e_flags & EF_ARM_INTERWORK)) |
9b485d32 | 1427 | |
252b5132 RH |
1428 | /* The linker script knows the section names for placement. |
1429 | The entry_names are used to do simple name mangling on the stubs. | |
1430 | Given a function name, and its type, the stub can be found. The | |
9b485d32 | 1431 | name can be changed. The only requirement is the %s be present. */ |
252b5132 RH |
1432 | #define THUMB2ARM_GLUE_SECTION_NAME ".glue_7t" |
1433 | #define THUMB2ARM_GLUE_ENTRY_NAME "__%s_from_thumb" | |
1434 | ||
1435 | #define ARM2THUMB_GLUE_SECTION_NAME ".glue_7" | |
1436 | #define ARM2THUMB_GLUE_ENTRY_NAME "__%s_from_arm" | |
1437 | ||
1438 | /* The name of the dynamic interpreter. This is put in the .interp | |
1439 | section. */ | |
1440 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
1441 | ||
5e681ec4 PB |
1442 | #ifdef FOUR_WORD_PLT |
1443 | ||
252b5132 RH |
1444 | /* The first entry in a procedure linkage table looks like |
1445 | this. It is set up so that any shared library function that is | |
59f2c4e7 | 1446 | called before the relocation has been set up calls the dynamic |
9b485d32 | 1447 | linker first. */ |
e5a52504 | 1448 | static const bfd_vma elf32_arm_plt0_entry [] = |
5e681ec4 PB |
1449 | { |
1450 | 0xe52de004, /* str lr, [sp, #-4]! */ | |
1451 | 0xe59fe010, /* ldr lr, [pc, #16] */ | |
1452 | 0xe08fe00e, /* add lr, pc, lr */ | |
1453 | 0xe5bef008, /* ldr pc, [lr, #8]! */ | |
1454 | }; | |
1455 | ||
1456 | /* Subsequent entries in a procedure linkage table look like | |
1457 | this. */ | |
e5a52504 | 1458 | static const bfd_vma elf32_arm_plt_entry [] = |
5e681ec4 PB |
1459 | { |
1460 | 0xe28fc600, /* add ip, pc, #NN */ | |
1461 | 0xe28cca00, /* add ip, ip, #NN */ | |
1462 | 0xe5bcf000, /* ldr pc, [ip, #NN]! */ | |
1463 | 0x00000000, /* unused */ | |
1464 | }; | |
1465 | ||
1466 | #else | |
1467 | ||
5e681ec4 PB |
1468 | /* The first entry in a procedure linkage table looks like |
1469 | this. It is set up so that any shared library function that is | |
1470 | called before the relocation has been set up calls the dynamic | |
1471 | linker first. */ | |
e5a52504 | 1472 | static const bfd_vma elf32_arm_plt0_entry [] = |
917583ad | 1473 | { |
5e681ec4 PB |
1474 | 0xe52de004, /* str lr, [sp, #-4]! */ |
1475 | 0xe59fe004, /* ldr lr, [pc, #4] */ | |
1476 | 0xe08fe00e, /* add lr, pc, lr */ | |
1477 | 0xe5bef008, /* ldr pc, [lr, #8]! */ | |
1478 | 0x00000000, /* &GOT[0] - . */ | |
917583ad | 1479 | }; |
252b5132 RH |
1480 | |
1481 | /* Subsequent entries in a procedure linkage table look like | |
1482 | this. */ | |
e5a52504 | 1483 | static const bfd_vma elf32_arm_plt_entry [] = |
5e681ec4 PB |
1484 | { |
1485 | 0xe28fc600, /* add ip, pc, #0xNN00000 */ | |
1486 | 0xe28cca00, /* add ip, ip, #0xNN000 */ | |
1487 | 0xe5bcf000, /* ldr pc, [ip, #0xNNN]! */ | |
1488 | }; | |
1489 | ||
1490 | #endif | |
252b5132 | 1491 | |
b7693d02 DJ |
1492 | /* An initial stub used if the PLT entry is referenced from Thumb code. */ |
1493 | #define PLT_THUMB_STUB_SIZE 4 | |
1494 | static const bfd_vma elf32_arm_plt_thumb_stub [] = | |
1495 | { | |
1496 | 0x4778, /* bx pc */ | |
1497 | 0x46c0 /* nop */ | |
1498 | }; | |
1499 | ||
e5a52504 MM |
1500 | /* The entries in a PLT when using a DLL-based target with multiple |
1501 | address spaces. */ | |
1502 | static const bfd_vma elf32_arm_symbian_plt_entry [] = | |
1503 | { | |
83a358aa | 1504 | 0xe51ff004, /* ldr pc, [pc, #-4] */ |
e5a52504 MM |
1505 | 0x00000000, /* dcd R_ARM_GLOB_DAT(X) */ |
1506 | }; | |
1507 | ||
e489d0ae PB |
1508 | /* Used to build a map of a section. This is required for mixed-endian |
1509 | code/data. */ | |
1510 | ||
1511 | typedef struct elf32_elf_section_map | |
1512 | { | |
1513 | bfd_vma vma; | |
1514 | char type; | |
1515 | } | |
1516 | elf32_arm_section_map; | |
1517 | ||
8e3de13a | 1518 | typedef struct _arm_elf_section_data |
e489d0ae PB |
1519 | { |
1520 | struct bfd_elf_section_data elf; | |
8e3de13a | 1521 | unsigned int mapcount; |
e489d0ae | 1522 | elf32_arm_section_map *map; |
8e3de13a NC |
1523 | } |
1524 | _arm_elf_section_data; | |
e489d0ae PB |
1525 | |
1526 | #define elf32_arm_section_data(sec) \ | |
8e3de13a | 1527 | ((_arm_elf_section_data *) elf_section_data (sec)) |
e489d0ae | 1528 | |
ba93b8ac DJ |
1529 | /* The size of the thread control block. */ |
1530 | #define TCB_SIZE 8 | |
1531 | ||
1532 | struct elf32_arm_obj_tdata | |
1533 | { | |
1534 | struct elf_obj_tdata root; | |
1535 | ||
1536 | /* tls_type for each local got entry. */ | |
1537 | char *local_got_tls_type; | |
1538 | }; | |
1539 | ||
1540 | #define elf32_arm_tdata(abfd) \ | |
1541 | ((struct elf32_arm_obj_tdata *) (abfd)->tdata.any) | |
1542 | ||
1543 | #define elf32_arm_local_got_tls_type(abfd) \ | |
1544 | (elf32_arm_tdata (abfd)->local_got_tls_type) | |
1545 | ||
1546 | static bfd_boolean | |
1547 | elf32_arm_mkobject (bfd *abfd) | |
1548 | { | |
1549 | bfd_size_type amt = sizeof (struct elf32_arm_obj_tdata); | |
1550 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
1551 | if (abfd->tdata.any == NULL) | |
1552 | return FALSE; | |
1553 | return TRUE; | |
1554 | } | |
1555 | ||
252b5132 RH |
1556 | /* The ARM linker needs to keep track of the number of relocs that it |
1557 | decides to copy in check_relocs for each symbol. This is so that | |
1558 | it can discard PC relative relocs if it doesn't need them when | |
1559 | linking with -Bsymbolic. We store the information in a field | |
1560 | extending the regular ELF linker hash table. */ | |
1561 | ||
ba93b8ac DJ |
1562 | /* This structure keeps track of the number of relocs we have copied |
1563 | for a given symbol. */ | |
5e681ec4 | 1564 | struct elf32_arm_relocs_copied |
917583ad NC |
1565 | { |
1566 | /* Next section. */ | |
5e681ec4 | 1567 | struct elf32_arm_relocs_copied * next; |
917583ad NC |
1568 | /* A section in dynobj. */ |
1569 | asection * section; | |
1570 | /* Number of relocs copied in this section. */ | |
1571 | bfd_size_type count; | |
ba93b8ac DJ |
1572 | /* Number of PC-relative relocs copied in this section. */ |
1573 | bfd_size_type pc_count; | |
917583ad | 1574 | }; |
252b5132 | 1575 | |
ba93b8ac DJ |
1576 | #define elf32_arm_hash_entry(ent) ((struct elf32_arm_link_hash_entry *)(ent)) |
1577 | ||
ba96a88f | 1578 | /* Arm ELF linker hash entry. */ |
252b5132 | 1579 | struct elf32_arm_link_hash_entry |
917583ad NC |
1580 | { |
1581 | struct elf_link_hash_entry root; | |
252b5132 | 1582 | |
917583ad | 1583 | /* Number of PC relative relocs copied for this symbol. */ |
5e681ec4 | 1584 | struct elf32_arm_relocs_copied * relocs_copied; |
b7693d02 DJ |
1585 | |
1586 | /* We reference count Thumb references to a PLT entry separately, | |
1587 | so that we can emit the Thumb trampoline only if needed. */ | |
1588 | bfd_signed_vma plt_thumb_refcount; | |
1589 | ||
1590 | /* Since PLT entries have variable size if the Thumb prologue is | |
1591 | used, we need to record the index into .got.plt instead of | |
1592 | recomputing it from the PLT offset. */ | |
1593 | bfd_signed_vma plt_got_offset; | |
ba93b8ac DJ |
1594 | |
1595 | #define GOT_UNKNOWN 0 | |
1596 | #define GOT_NORMAL 1 | |
1597 | #define GOT_TLS_GD 2 | |
1598 | #define GOT_TLS_IE 4 | |
1599 | unsigned char tls_type; | |
917583ad | 1600 | }; |
252b5132 | 1601 | |
252b5132 | 1602 | /* Traverse an arm ELF linker hash table. */ |
252b5132 RH |
1603 | #define elf32_arm_link_hash_traverse(table, func, info) \ |
1604 | (elf_link_hash_traverse \ | |
1605 | (&(table)->root, \ | |
b7693d02 | 1606 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
1607 | (info))) |
1608 | ||
1609 | /* Get the ARM elf linker hash table from a link_info structure. */ | |
1610 | #define elf32_arm_hash_table(info) \ | |
1611 | ((struct elf32_arm_link_hash_table *) ((info)->hash)) | |
1612 | ||
9b485d32 | 1613 | /* ARM ELF linker hash table. */ |
252b5132 | 1614 | struct elf32_arm_link_hash_table |
917583ad NC |
1615 | { |
1616 | /* The main hash table. */ | |
1617 | struct elf_link_hash_table root; | |
252b5132 | 1618 | |
4cc11e76 | 1619 | /* The size in bytes of the section containing the Thumb-to-ARM glue. */ |
dc810e39 | 1620 | bfd_size_type thumb_glue_size; |
252b5132 | 1621 | |
4cc11e76 | 1622 | /* The size in bytes of the section containing the ARM-to-Thumb glue. */ |
dc810e39 | 1623 | bfd_size_type arm_glue_size; |
252b5132 | 1624 | |
4cc11e76 | 1625 | /* An arbitrary input BFD chosen to hold the glue sections. */ |
917583ad | 1626 | bfd * bfd_of_glue_owner; |
ba96a88f | 1627 | |
e489d0ae PB |
1628 | /* Nonzero to output a BE8 image. */ |
1629 | int byteswap_code; | |
1630 | ||
9c504268 PB |
1631 | /* Zero if R_ARM_TARGET1 means R_ARM_ABS32. |
1632 | Nonzero if R_ARM_TARGET1 means R_ARM_ABS32. */ | |
1633 | int target1_is_rel; | |
1634 | ||
eb043451 PB |
1635 | /* The relocation to use for R_ARM_TARGET2 relocations. */ |
1636 | int target2_reloc; | |
1637 | ||
319850b4 JB |
1638 | /* Nonzero to fix BX instructions for ARMv4 targets. */ |
1639 | int fix_v4bx; | |
1640 | ||
33bfe774 JB |
1641 | /* Nonzero if the ARM/Thumb BLX instructions are available for use. */ |
1642 | int use_blx; | |
1643 | ||
e5a52504 MM |
1644 | /* The number of bytes in the initial entry in the PLT. */ |
1645 | bfd_size_type plt_header_size; | |
1646 | ||
1647 | /* The number of bytes in the subsequent PLT etries. */ | |
1648 | bfd_size_type plt_entry_size; | |
1649 | ||
1650 | /* True if the target system is Symbian OS. */ | |
1651 | int symbian_p; | |
1652 | ||
4e7fd91e PB |
1653 | /* True if the target uses REL relocations. */ |
1654 | int use_rel; | |
1655 | ||
5e681ec4 PB |
1656 | /* Short-cuts to get to dynamic linker sections. */ |
1657 | asection *sgot; | |
1658 | asection *sgotplt; | |
1659 | asection *srelgot; | |
1660 | asection *splt; | |
1661 | asection *srelplt; | |
1662 | asection *sdynbss; | |
1663 | asection *srelbss; | |
1664 | ||
ba93b8ac DJ |
1665 | /* Data for R_ARM_TLS_LDM32 relocations. */ |
1666 | union { | |
1667 | bfd_signed_vma refcount; | |
1668 | bfd_vma offset; | |
1669 | } tls_ldm_got; | |
1670 | ||
5e681ec4 PB |
1671 | /* Small local sym to section mapping cache. */ |
1672 | struct sym_sec_cache sym_sec; | |
b7693d02 DJ |
1673 | |
1674 | /* For convenience in allocate_dynrelocs. */ | |
1675 | bfd * obfd; | |
917583ad | 1676 | }; |
252b5132 | 1677 | |
780a67af NC |
1678 | /* Create an entry in an ARM ELF linker hash table. */ |
1679 | ||
1680 | static struct bfd_hash_entry * | |
57e8b36a NC |
1681 | elf32_arm_link_hash_newfunc (struct bfd_hash_entry * entry, |
1682 | struct bfd_hash_table * table, | |
1683 | const char * string) | |
780a67af NC |
1684 | { |
1685 | struct elf32_arm_link_hash_entry * ret = | |
1686 | (struct elf32_arm_link_hash_entry *) entry; | |
1687 | ||
1688 | /* Allocate the structure if it has not already been allocated by a | |
1689 | subclass. */ | |
1690 | if (ret == (struct elf32_arm_link_hash_entry *) NULL) | |
57e8b36a NC |
1691 | ret = bfd_hash_allocate (table, sizeof (struct elf32_arm_link_hash_entry)); |
1692 | if (ret == NULL) | |
780a67af NC |
1693 | return (struct bfd_hash_entry *) ret; |
1694 | ||
1695 | /* Call the allocation method of the superclass. */ | |
1696 | ret = ((struct elf32_arm_link_hash_entry *) | |
1697 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
1698 | table, string)); | |
57e8b36a | 1699 | if (ret != NULL) |
b7693d02 DJ |
1700 | { |
1701 | ret->relocs_copied = NULL; | |
ba93b8ac | 1702 | ret->tls_type = GOT_UNKNOWN; |
b7693d02 DJ |
1703 | ret->plt_thumb_refcount = 0; |
1704 | ret->plt_got_offset = -1; | |
1705 | } | |
780a67af NC |
1706 | |
1707 | return (struct bfd_hash_entry *) ret; | |
1708 | } | |
1709 | ||
5e681ec4 PB |
1710 | /* Create .got, .gotplt, and .rel.got sections in DYNOBJ, and set up |
1711 | shortcuts to them in our hash table. */ | |
1712 | ||
1713 | static bfd_boolean | |
57e8b36a | 1714 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
5e681ec4 PB |
1715 | { |
1716 | struct elf32_arm_link_hash_table *htab; | |
1717 | ||
e5a52504 MM |
1718 | htab = elf32_arm_hash_table (info); |
1719 | /* BPABI objects never have a GOT, or associated sections. */ | |
1720 | if (htab->symbian_p) | |
1721 | return TRUE; | |
1722 | ||
5e681ec4 PB |
1723 | if (! _bfd_elf_create_got_section (dynobj, info)) |
1724 | return FALSE; | |
1725 | ||
5e681ec4 PB |
1726 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); |
1727 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1728 | if (!htab->sgot || !htab->sgotplt) | |
1729 | abort (); | |
1730 | ||
3496cb2a L |
1731 | htab->srelgot = bfd_make_section_with_flags (dynobj, ".rel.got", |
1732 | (SEC_ALLOC | SEC_LOAD | |
1733 | | SEC_HAS_CONTENTS | |
1734 | | SEC_IN_MEMORY | |
1735 | | SEC_LINKER_CREATED | |
1736 | | SEC_READONLY)); | |
5e681ec4 | 1737 | if (htab->srelgot == NULL |
5e681ec4 PB |
1738 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) |
1739 | return FALSE; | |
1740 | return TRUE; | |
1741 | } | |
1742 | ||
1743 | /* Create .plt, .rel.plt, .got, .got.plt, .rel.got, .dynbss, and | |
1744 | .rel.bss sections in DYNOBJ, and set up shortcuts to them in our | |
1745 | hash table. */ | |
1746 | ||
1747 | static bfd_boolean | |
57e8b36a | 1748 | elf32_arm_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
5e681ec4 PB |
1749 | { |
1750 | struct elf32_arm_link_hash_table *htab; | |
1751 | ||
1752 | htab = elf32_arm_hash_table (info); | |
1753 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
1754 | return FALSE; | |
1755 | ||
1756 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
1757 | return FALSE; | |
1758 | ||
1759 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1760 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rel.plt"); | |
1761 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
1762 | if (!info->shared) | |
1763 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rel.bss"); | |
1764 | ||
e5a52504 MM |
1765 | if (!htab->splt |
1766 | || !htab->srelplt | |
1767 | || !htab->sdynbss | |
5e681ec4 PB |
1768 | || (!info->shared && !htab->srelbss)) |
1769 | abort (); | |
1770 | ||
1771 | return TRUE; | |
1772 | } | |
1773 | ||
1774 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
1775 | ||
1776 | static void | |
1777 | elf32_arm_copy_indirect_symbol (const struct elf_backend_data *bed, | |
1778 | struct elf_link_hash_entry *dir, | |
1779 | struct elf_link_hash_entry *ind) | |
1780 | { | |
1781 | struct elf32_arm_link_hash_entry *edir, *eind; | |
1782 | ||
1783 | edir = (struct elf32_arm_link_hash_entry *) dir; | |
1784 | eind = (struct elf32_arm_link_hash_entry *) ind; | |
1785 | ||
1786 | if (eind->relocs_copied != NULL) | |
1787 | { | |
1788 | if (edir->relocs_copied != NULL) | |
1789 | { | |
1790 | struct elf32_arm_relocs_copied **pp; | |
1791 | struct elf32_arm_relocs_copied *p; | |
1792 | ||
1793 | if (ind->root.type == bfd_link_hash_indirect) | |
1794 | abort (); | |
1795 | ||
1796 | /* Add reloc counts against the weak sym to the strong sym | |
1797 | list. Merge any entries against the same section. */ | |
1798 | for (pp = &eind->relocs_copied; (p = *pp) != NULL; ) | |
1799 | { | |
1800 | struct elf32_arm_relocs_copied *q; | |
1801 | ||
1802 | for (q = edir->relocs_copied; q != NULL; q = q->next) | |
1803 | if (q->section == p->section) | |
1804 | { | |
ba93b8ac | 1805 | q->pc_count += p->pc_count; |
5e681ec4 PB |
1806 | q->count += p->count; |
1807 | *pp = p->next; | |
1808 | break; | |
1809 | } | |
1810 | if (q == NULL) | |
1811 | pp = &p->next; | |
1812 | } | |
1813 | *pp = edir->relocs_copied; | |
1814 | } | |
1815 | ||
1816 | edir->relocs_copied = eind->relocs_copied; | |
1817 | eind->relocs_copied = NULL; | |
1818 | } | |
1819 | ||
b7693d02 DJ |
1820 | /* If the direct symbol already has an associated PLT entry, the |
1821 | indirect symbol should not. If it doesn't, swap refcount information | |
1822 | from the indirect symbol. */ | |
1823 | if (edir->plt_thumb_refcount == 0) | |
1824 | { | |
1825 | edir->plt_thumb_refcount = eind->plt_thumb_refcount; | |
1826 | eind->plt_thumb_refcount = 0; | |
1827 | } | |
1828 | else | |
1829 | BFD_ASSERT (eind->plt_thumb_refcount == 0); | |
1830 | ||
ba93b8ac DJ |
1831 | if (ind->root.type == bfd_link_hash_indirect |
1832 | && dir->got.refcount <= 0) | |
1833 | { | |
1834 | edir->tls_type = eind->tls_type; | |
1835 | eind->tls_type = GOT_UNKNOWN; | |
1836 | } | |
1837 | ||
5e681ec4 PB |
1838 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); |
1839 | } | |
1840 | ||
9b485d32 | 1841 | /* Create an ARM elf linker hash table. */ |
252b5132 RH |
1842 | |
1843 | static struct bfd_link_hash_table * | |
57e8b36a | 1844 | elf32_arm_link_hash_table_create (bfd *abfd) |
252b5132 RH |
1845 | { |
1846 | struct elf32_arm_link_hash_table *ret; | |
dc810e39 | 1847 | bfd_size_type amt = sizeof (struct elf32_arm_link_hash_table); |
252b5132 | 1848 | |
57e8b36a NC |
1849 | ret = bfd_malloc (amt); |
1850 | if (ret == NULL) | |
252b5132 RH |
1851 | return NULL; |
1852 | ||
57e8b36a | 1853 | if (!_bfd_elf_link_hash_table_init (& ret->root, abfd, |
780a67af | 1854 | elf32_arm_link_hash_newfunc)) |
252b5132 | 1855 | { |
e2d34d7d | 1856 | free (ret); |
252b5132 RH |
1857 | return NULL; |
1858 | } | |
1859 | ||
5e681ec4 PB |
1860 | ret->sgot = NULL; |
1861 | ret->sgotplt = NULL; | |
1862 | ret->srelgot = NULL; | |
1863 | ret->splt = NULL; | |
1864 | ret->srelplt = NULL; | |
1865 | ret->sdynbss = NULL; | |
1866 | ret->srelbss = NULL; | |
252b5132 RH |
1867 | ret->thumb_glue_size = 0; |
1868 | ret->arm_glue_size = 0; | |
1869 | ret->bfd_of_glue_owner = NULL; | |
e489d0ae | 1870 | ret->byteswap_code = 0; |
9c504268 | 1871 | ret->target1_is_rel = 0; |
eb043451 | 1872 | ret->target2_reloc = R_ARM_NONE; |
e5a52504 MM |
1873 | #ifdef FOUR_WORD_PLT |
1874 | ret->plt_header_size = 16; | |
1875 | ret->plt_entry_size = 16; | |
1876 | #else | |
1877 | ret->plt_header_size = 20; | |
1878 | ret->plt_entry_size = 12; | |
1879 | #endif | |
33bfe774 JB |
1880 | ret->fix_v4bx = 0; |
1881 | ret->use_blx = 0; | |
e5a52504 | 1882 | ret->symbian_p = 0; |
4e7fd91e | 1883 | ret->use_rel = 1; |
5e681ec4 | 1884 | ret->sym_sec.abfd = NULL; |
b7693d02 | 1885 | ret->obfd = abfd; |
ba93b8ac | 1886 | ret->tls_ldm_got.refcount = 0; |
252b5132 RH |
1887 | |
1888 | return &ret->root.root; | |
1889 | } | |
1890 | ||
9b485d32 NC |
1891 | /* Locate the Thumb encoded calling stub for NAME. */ |
1892 | ||
252b5132 | 1893 | static struct elf_link_hash_entry * |
57e8b36a NC |
1894 | find_thumb_glue (struct bfd_link_info *link_info, |
1895 | const char *name, | |
1896 | bfd *input_bfd) | |
252b5132 RH |
1897 | { |
1898 | char *tmp_name; | |
1899 | struct elf_link_hash_entry *hash; | |
1900 | struct elf32_arm_link_hash_table *hash_table; | |
1901 | ||
1902 | /* We need a pointer to the armelf specific hash table. */ | |
1903 | hash_table = elf32_arm_hash_table (link_info); | |
1904 | ||
57e8b36a NC |
1905 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
1906 | + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
1907 | |
1908 | BFD_ASSERT (tmp_name); | |
1909 | ||
1910 | sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name); | |
1911 | ||
1912 | hash = elf_link_hash_lookup | |
b34976b6 | 1913 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
1914 | |
1915 | if (hash == NULL) | |
1916 | /* xgettext:c-format */ | |
d003868e AM |
1917 | (*_bfd_error_handler) (_("%B: unable to find THUMB glue '%s' for `%s'"), |
1918 | input_bfd, tmp_name, name); | |
252b5132 RH |
1919 | |
1920 | free (tmp_name); | |
1921 | ||
1922 | return hash; | |
1923 | } | |
1924 | ||
9b485d32 NC |
1925 | /* Locate the ARM encoded calling stub for NAME. */ |
1926 | ||
252b5132 | 1927 | static struct elf_link_hash_entry * |
57e8b36a NC |
1928 | find_arm_glue (struct bfd_link_info *link_info, |
1929 | const char *name, | |
1930 | bfd *input_bfd) | |
252b5132 RH |
1931 | { |
1932 | char *tmp_name; | |
1933 | struct elf_link_hash_entry *myh; | |
1934 | struct elf32_arm_link_hash_table *hash_table; | |
1935 | ||
1936 | /* We need a pointer to the elfarm specific hash table. */ | |
1937 | hash_table = elf32_arm_hash_table (link_info); | |
1938 | ||
57e8b36a NC |
1939 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
1940 | + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
1941 | |
1942 | BFD_ASSERT (tmp_name); | |
1943 | ||
1944 | sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name); | |
1945 | ||
1946 | myh = elf_link_hash_lookup | |
b34976b6 | 1947 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
1948 | |
1949 | if (myh == NULL) | |
1950 | /* xgettext:c-format */ | |
d003868e AM |
1951 | (*_bfd_error_handler) (_("%B: unable to find ARM glue '%s' for `%s'"), |
1952 | input_bfd, tmp_name, name); | |
252b5132 RH |
1953 | |
1954 | free (tmp_name); | |
1955 | ||
1956 | return myh; | |
1957 | } | |
1958 | ||
8f6277f5 | 1959 | /* ARM->Thumb glue (static images): |
252b5132 RH |
1960 | |
1961 | .arm | |
1962 | __func_from_arm: | |
1963 | ldr r12, __func_addr | |
1964 | bx r12 | |
1965 | __func_addr: | |
8f6277f5 | 1966 | .word func @ behave as if you saw a ARM_32 reloc. |
252b5132 | 1967 | |
8f6277f5 PB |
1968 | (relocatable images) |
1969 | .arm | |
1970 | __func_from_arm: | |
1971 | ldr r12, __func_offset | |
1972 | add r12, r12, pc | |
1973 | bx r12 | |
1974 | __func_offset: | |
1975 | .word func - . | |
1976 | */ | |
1977 | ||
1978 | #define ARM2THUMB_STATIC_GLUE_SIZE 12 | |
252b5132 RH |
1979 | static const insn32 a2t1_ldr_insn = 0xe59fc000; |
1980 | static const insn32 a2t2_bx_r12_insn = 0xe12fff1c; | |
1981 | static const insn32 a2t3_func_addr_insn = 0x00000001; | |
1982 | ||
8f6277f5 PB |
1983 | #define ARM2THUMB_PIC_GLUE_SIZE 16 |
1984 | static const insn32 a2t1p_ldr_insn = 0xe59fc004; | |
1985 | static const insn32 a2t2p_add_pc_insn = 0xe08cc00f; | |
1986 | static const insn32 a2t3p_bx_r12_insn = 0xe12fff1c; | |
1987 | ||
9b485d32 | 1988 | /* Thumb->ARM: Thumb->(non-interworking aware) ARM |
252b5132 RH |
1989 | |
1990 | .thumb .thumb | |
1991 | .align 2 .align 2 | |
1992 | __func_from_thumb: __func_from_thumb: | |
1993 | bx pc push {r6, lr} | |
1994 | nop ldr r6, __func_addr | |
1995 | .arm mov lr, pc | |
1996 | __func_change_to_arm: bx r6 | |
1997 | b func .arm | |
1998 | __func_back_to_thumb: | |
1999 | ldmia r13! {r6, lr} | |
2000 | bx lr | |
2001 | __func_addr: | |
9b485d32 | 2002 | .word func */ |
252b5132 RH |
2003 | |
2004 | #define THUMB2ARM_GLUE_SIZE 8 | |
2005 | static const insn16 t2a1_bx_pc_insn = 0x4778; | |
2006 | static const insn16 t2a2_noop_insn = 0x46c0; | |
2007 | static const insn32 t2a3_b_insn = 0xea000000; | |
2008 | ||
7e392df6 | 2009 | #ifndef ELFARM_NABI_C_INCLUDED |
b34976b6 | 2010 | bfd_boolean |
57e8b36a | 2011 | bfd_elf32_arm_allocate_interworking_sections (struct bfd_link_info * info) |
252b5132 RH |
2012 | { |
2013 | asection * s; | |
2014 | bfd_byte * foo; | |
2015 | struct elf32_arm_link_hash_table * globals; | |
2016 | ||
2017 | globals = elf32_arm_hash_table (info); | |
2018 | ||
2019 | BFD_ASSERT (globals != NULL); | |
2020 | ||
2021 | if (globals->arm_glue_size != 0) | |
2022 | { | |
2023 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2024 | ||
dc810e39 AM |
2025 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, |
2026 | ARM2THUMB_GLUE_SECTION_NAME); | |
252b5132 RH |
2027 | |
2028 | BFD_ASSERT (s != NULL); | |
2029 | ||
57e8b36a | 2030 | foo = bfd_alloc (globals->bfd_of_glue_owner, globals->arm_glue_size); |
252b5132 | 2031 | |
eea6121a | 2032 | s->size = globals->arm_glue_size; |
252b5132 RH |
2033 | s->contents = foo; |
2034 | } | |
2035 | ||
2036 | if (globals->thumb_glue_size != 0) | |
2037 | { | |
2038 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2039 | ||
2040 | s = bfd_get_section_by_name | |
2041 | (globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME); | |
2042 | ||
2043 | BFD_ASSERT (s != NULL); | |
2044 | ||
57e8b36a | 2045 | foo = bfd_alloc (globals->bfd_of_glue_owner, globals->thumb_glue_size); |
252b5132 | 2046 | |
eea6121a | 2047 | s->size = globals->thumb_glue_size; |
252b5132 RH |
2048 | s->contents = foo; |
2049 | } | |
2050 | ||
b34976b6 | 2051 | return TRUE; |
252b5132 RH |
2052 | } |
2053 | ||
2054 | static void | |
57e8b36a NC |
2055 | record_arm_to_thumb_glue (struct bfd_link_info * link_info, |
2056 | struct elf_link_hash_entry * h) | |
252b5132 RH |
2057 | { |
2058 | const char * name = h->root.root.string; | |
63b0f745 | 2059 | asection * s; |
252b5132 RH |
2060 | char * tmp_name; |
2061 | struct elf_link_hash_entry * myh; | |
14a793b2 | 2062 | struct bfd_link_hash_entry * bh; |
252b5132 | 2063 | struct elf32_arm_link_hash_table * globals; |
dc810e39 | 2064 | bfd_vma val; |
252b5132 RH |
2065 | |
2066 | globals = elf32_arm_hash_table (link_info); | |
2067 | ||
2068 | BFD_ASSERT (globals != NULL); | |
2069 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2070 | ||
2071 | s = bfd_get_section_by_name | |
2072 | (globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME); | |
2073 | ||
252b5132 RH |
2074 | BFD_ASSERT (s != NULL); |
2075 | ||
57e8b36a | 2076 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1); |
252b5132 RH |
2077 | |
2078 | BFD_ASSERT (tmp_name); | |
2079 | ||
2080 | sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name); | |
2081 | ||
2082 | myh = elf_link_hash_lookup | |
b34976b6 | 2083 | (&(globals)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
2084 | |
2085 | if (myh != NULL) | |
2086 | { | |
9b485d32 | 2087 | /* We've already seen this guy. */ |
252b5132 | 2088 | free (tmp_name); |
9b485d32 | 2089 | return; |
252b5132 RH |
2090 | } |
2091 | ||
57e8b36a NC |
2092 | /* The only trick here is using hash_table->arm_glue_size as the value. |
2093 | Even though the section isn't allocated yet, this is where we will be | |
2094 | putting it. */ | |
14a793b2 | 2095 | bh = NULL; |
dc810e39 AM |
2096 | val = globals->arm_glue_size + 1; |
2097 | _bfd_generic_link_add_one_symbol (link_info, globals->bfd_of_glue_owner, | |
2098 | tmp_name, BSF_GLOBAL, s, val, | |
b34976b6 | 2099 | NULL, TRUE, FALSE, &bh); |
252b5132 | 2100 | |
b7693d02 DJ |
2101 | myh = (struct elf_link_hash_entry *) bh; |
2102 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_FUNC); | |
2103 | myh->forced_local = 1; | |
2104 | ||
252b5132 RH |
2105 | free (tmp_name); |
2106 | ||
8f6277f5 PB |
2107 | if ((link_info->shared || globals->root.is_relocatable_executable)) |
2108 | globals->arm_glue_size += ARM2THUMB_PIC_GLUE_SIZE; | |
2109 | else | |
2110 | globals->arm_glue_size += ARM2THUMB_STATIC_GLUE_SIZE; | |
252b5132 RH |
2111 | |
2112 | return; | |
2113 | } | |
2114 | ||
2115 | static void | |
57e8b36a NC |
2116 | record_thumb_to_arm_glue (struct bfd_link_info *link_info, |
2117 | struct elf_link_hash_entry *h) | |
252b5132 RH |
2118 | { |
2119 | const char *name = h->root.root.string; | |
63b0f745 | 2120 | asection *s; |
252b5132 RH |
2121 | char *tmp_name; |
2122 | struct elf_link_hash_entry *myh; | |
14a793b2 | 2123 | struct bfd_link_hash_entry *bh; |
252b5132 | 2124 | struct elf32_arm_link_hash_table *hash_table; |
dc810e39 | 2125 | bfd_vma val; |
252b5132 RH |
2126 | |
2127 | hash_table = elf32_arm_hash_table (link_info); | |
2128 | ||
2129 | BFD_ASSERT (hash_table != NULL); | |
2130 | BFD_ASSERT (hash_table->bfd_of_glue_owner != NULL); | |
2131 | ||
2132 | s = bfd_get_section_by_name | |
2133 | (hash_table->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME); | |
2134 | ||
2135 | BFD_ASSERT (s != NULL); | |
2136 | ||
57e8b36a NC |
2137 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
2138 | + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
2139 | |
2140 | BFD_ASSERT (tmp_name); | |
2141 | ||
2142 | sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name); | |
2143 | ||
2144 | myh = elf_link_hash_lookup | |
b34976b6 | 2145 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
2146 | |
2147 | if (myh != NULL) | |
2148 | { | |
9b485d32 | 2149 | /* We've already seen this guy. */ |
252b5132 | 2150 | free (tmp_name); |
9b485d32 | 2151 | return; |
252b5132 RH |
2152 | } |
2153 | ||
14a793b2 | 2154 | bh = NULL; |
dc810e39 AM |
2155 | val = hash_table->thumb_glue_size + 1; |
2156 | _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner, | |
2157 | tmp_name, BSF_GLOBAL, s, val, | |
b34976b6 | 2158 | NULL, TRUE, FALSE, &bh); |
252b5132 | 2159 | |
9b485d32 | 2160 | /* If we mark it 'Thumb', the disassembler will do a better job. */ |
14a793b2 | 2161 | myh = (struct elf_link_hash_entry *) bh; |
b7693d02 DJ |
2162 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_ARM_TFUNC); |
2163 | myh->forced_local = 1; | |
252b5132 RH |
2164 | |
2165 | free (tmp_name); | |
2166 | ||
252b5132 RH |
2167 | #define CHANGE_TO_ARM "__%s_change_to_arm" |
2168 | #define BACK_FROM_ARM "__%s_back_from_arm" | |
2169 | ||
9b485d32 | 2170 | /* Allocate another symbol to mark where we switch to Arm mode. */ |
57e8b36a NC |
2171 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
2172 | + strlen (CHANGE_TO_ARM) + 1); | |
252b5132 RH |
2173 | |
2174 | BFD_ASSERT (tmp_name); | |
2175 | ||
2176 | sprintf (tmp_name, CHANGE_TO_ARM, name); | |
2177 | ||
14a793b2 | 2178 | bh = NULL; |
dc810e39 AM |
2179 | val = hash_table->thumb_glue_size + 4, |
2180 | _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner, | |
2181 | tmp_name, BSF_LOCAL, s, val, | |
b34976b6 | 2182 | NULL, TRUE, FALSE, &bh); |
252b5132 RH |
2183 | |
2184 | free (tmp_name); | |
2185 | ||
2186 | hash_table->thumb_glue_size += THUMB2ARM_GLUE_SIZE; | |
2187 | ||
2188 | return; | |
2189 | } | |
2190 | ||
8afb0e02 NC |
2191 | /* Add the glue sections to ABFD. This function is called from the |
2192 | linker scripts in ld/emultempl/{armelf}.em. */ | |
9b485d32 | 2193 | |
b34976b6 | 2194 | bfd_boolean |
57e8b36a NC |
2195 | bfd_elf32_arm_add_glue_sections_to_bfd (bfd *abfd, |
2196 | struct bfd_link_info *info) | |
252b5132 | 2197 | { |
252b5132 RH |
2198 | flagword flags; |
2199 | asection *sec; | |
2200 | ||
8afb0e02 NC |
2201 | /* If we are only performing a partial |
2202 | link do not bother adding the glue. */ | |
1049f94e | 2203 | if (info->relocatable) |
b34976b6 | 2204 | return TRUE; |
252b5132 | 2205 | |
252b5132 RH |
2206 | sec = bfd_get_section_by_name (abfd, ARM2THUMB_GLUE_SECTION_NAME); |
2207 | ||
2208 | if (sec == NULL) | |
2209 | { | |
57db232e NC |
2210 | /* Note: we do not include the flag SEC_LINKER_CREATED, as this |
2211 | will prevent elf_link_input_bfd() from processing the contents | |
2212 | of this section. */ | |
811b4bf6 | 2213 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_CODE | SEC_READONLY; |
252b5132 | 2214 | |
3496cb2a L |
2215 | sec = bfd_make_section_with_flags (abfd, |
2216 | ARM2THUMB_GLUE_SECTION_NAME, | |
2217 | flags); | |
252b5132 RH |
2218 | |
2219 | if (sec == NULL | |
252b5132 | 2220 | || !bfd_set_section_alignment (abfd, sec, 2)) |
b34976b6 | 2221 | return FALSE; |
9a5aca8c | 2222 | |
57db232e NC |
2223 | /* Set the gc mark to prevent the section from being removed by garbage |
2224 | collection, despite the fact that no relocs refer to this section. */ | |
2225 | sec->gc_mark = 1; | |
252b5132 RH |
2226 | } |
2227 | ||
2228 | sec = bfd_get_section_by_name (abfd, THUMB2ARM_GLUE_SECTION_NAME); | |
2229 | ||
2230 | if (sec == NULL) | |
2231 | { | |
57e8b36a NC |
2232 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
2233 | | SEC_CODE | SEC_READONLY; | |
252b5132 | 2234 | |
3496cb2a L |
2235 | sec = bfd_make_section_with_flags (abfd, |
2236 | THUMB2ARM_GLUE_SECTION_NAME, | |
2237 | flags); | |
252b5132 RH |
2238 | |
2239 | if (sec == NULL | |
252b5132 | 2240 | || !bfd_set_section_alignment (abfd, sec, 2)) |
b34976b6 | 2241 | return FALSE; |
9a5aca8c | 2242 | |
57db232e | 2243 | sec->gc_mark = 1; |
252b5132 RH |
2244 | } |
2245 | ||
b34976b6 | 2246 | return TRUE; |
8afb0e02 NC |
2247 | } |
2248 | ||
2249 | /* Select a BFD to be used to hold the sections used by the glue code. | |
2250 | This function is called from the linker scripts in ld/emultempl/ | |
2251 | {armelf/pe}.em */ | |
2252 | ||
b34976b6 | 2253 | bfd_boolean |
57e8b36a | 2254 | bfd_elf32_arm_get_bfd_for_interworking (bfd *abfd, struct bfd_link_info *info) |
8afb0e02 NC |
2255 | { |
2256 | struct elf32_arm_link_hash_table *globals; | |
2257 | ||
2258 | /* If we are only performing a partial link | |
2259 | do not bother getting a bfd to hold the glue. */ | |
1049f94e | 2260 | if (info->relocatable) |
b34976b6 | 2261 | return TRUE; |
8afb0e02 | 2262 | |
b7693d02 DJ |
2263 | /* Make sure we don't attach the glue sections to a dynamic object. */ |
2264 | BFD_ASSERT (!(abfd->flags & DYNAMIC)); | |
2265 | ||
8afb0e02 NC |
2266 | globals = elf32_arm_hash_table (info); |
2267 | ||
2268 | BFD_ASSERT (globals != NULL); | |
2269 | ||
2270 | if (globals->bfd_of_glue_owner != NULL) | |
b34976b6 | 2271 | return TRUE; |
8afb0e02 | 2272 | |
252b5132 RH |
2273 | /* Save the bfd for later use. */ |
2274 | globals->bfd_of_glue_owner = abfd; | |
cedb70c5 | 2275 | |
b34976b6 | 2276 | return TRUE; |
252b5132 RH |
2277 | } |
2278 | ||
b34976b6 | 2279 | bfd_boolean |
57e8b36a NC |
2280 | bfd_elf32_arm_process_before_allocation (bfd *abfd, |
2281 | struct bfd_link_info *link_info, | |
eb043451 | 2282 | int byteswap_code) |
252b5132 RH |
2283 | { |
2284 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 2285 | Elf_Internal_Rela *internal_relocs = NULL; |
252b5132 RH |
2286 | Elf_Internal_Rela *irel, *irelend; |
2287 | bfd_byte *contents = NULL; | |
252b5132 RH |
2288 | |
2289 | asection *sec; | |
2290 | struct elf32_arm_link_hash_table *globals; | |
2291 | ||
2292 | /* If we are only performing a partial link do not bother | |
2293 | to construct any glue. */ | |
1049f94e | 2294 | if (link_info->relocatable) |
b34976b6 | 2295 | return TRUE; |
252b5132 RH |
2296 | |
2297 | /* Here we have a bfd that is to be included on the link. We have a hook | |
2298 | to do reloc rummaging, before section sizes are nailed down. */ | |
252b5132 RH |
2299 | globals = elf32_arm_hash_table (link_info); |
2300 | ||
2301 | BFD_ASSERT (globals != NULL); | |
2302 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2303 | ||
e489d0ae PB |
2304 | if (byteswap_code && !bfd_big_endian (abfd)) |
2305 | { | |
d003868e AM |
2306 | _bfd_error_handler (_("%B: BE8 images only valid in big-endian mode."), |
2307 | abfd); | |
e489d0ae PB |
2308 | return FALSE; |
2309 | } | |
2310 | globals->byteswap_code = byteswap_code; | |
f21f3fe0 | 2311 | |
252b5132 RH |
2312 | /* Rummage around all the relocs and map the glue vectors. */ |
2313 | sec = abfd->sections; | |
2314 | ||
2315 | if (sec == NULL) | |
b34976b6 | 2316 | return TRUE; |
252b5132 RH |
2317 | |
2318 | for (; sec != NULL; sec = sec->next) | |
2319 | { | |
2320 | if (sec->reloc_count == 0) | |
2321 | continue; | |
2322 | ||
2323 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
252b5132 | 2324 | |
9b485d32 | 2325 | /* Load the relocs. */ |
6cdc0ccc | 2326 | internal_relocs |
57e8b36a | 2327 | = _bfd_elf_link_read_relocs (abfd, sec, (void *) NULL, |
45d6a902 | 2328 | (Elf_Internal_Rela *) NULL, FALSE); |
252b5132 | 2329 | |
6cdc0ccc AM |
2330 | if (internal_relocs == NULL) |
2331 | goto error_return; | |
252b5132 | 2332 | |
6cdc0ccc AM |
2333 | irelend = internal_relocs + sec->reloc_count; |
2334 | for (irel = internal_relocs; irel < irelend; irel++) | |
252b5132 RH |
2335 | { |
2336 | long r_type; | |
2337 | unsigned long r_index; | |
252b5132 RH |
2338 | |
2339 | struct elf_link_hash_entry *h; | |
2340 | ||
2341 | r_type = ELF32_R_TYPE (irel->r_info); | |
2342 | r_index = ELF32_R_SYM (irel->r_info); | |
2343 | ||
9b485d32 | 2344 | /* These are the only relocation types we care about. */ |
ba96a88f | 2345 | if ( r_type != R_ARM_PC24 |
b7693d02 | 2346 | && r_type != R_ARM_PLT32 |
5b5bb741 PB |
2347 | && r_type != R_ARM_CALL |
2348 | && r_type != R_ARM_JUMP24 | |
c19d1205 | 2349 | && r_type != R_ARM_THM_CALL) |
252b5132 RH |
2350 | continue; |
2351 | ||
2352 | /* Get the section contents if we haven't done so already. */ | |
2353 | if (contents == NULL) | |
2354 | { | |
2355 | /* Get cached copy if it exists. */ | |
2356 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
2357 | contents = elf_section_data (sec)->this_hdr.contents; | |
2358 | else | |
2359 | { | |
2360 | /* Go get them off disk. */ | |
57e8b36a | 2361 | if (! bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
2362 | goto error_return; |
2363 | } | |
2364 | } | |
2365 | ||
a7c10850 | 2366 | /* If the relocation is not against a symbol it cannot concern us. */ |
252b5132 RH |
2367 | h = NULL; |
2368 | ||
9b485d32 | 2369 | /* We don't care about local symbols. */ |
252b5132 RH |
2370 | if (r_index < symtab_hdr->sh_info) |
2371 | continue; | |
2372 | ||
9b485d32 | 2373 | /* This is an external symbol. */ |
252b5132 RH |
2374 | r_index -= symtab_hdr->sh_info; |
2375 | h = (struct elf_link_hash_entry *) | |
2376 | elf_sym_hashes (abfd)[r_index]; | |
2377 | ||
2378 | /* If the relocation is against a static symbol it must be within | |
2379 | the current section and so cannot be a cross ARM/Thumb relocation. */ | |
2380 | if (h == NULL) | |
2381 | continue; | |
2382 | ||
b7693d02 DJ |
2383 | /* If the call will go through a PLT entry then we do not need |
2384 | glue. */ | |
2385 | if (globals->splt != NULL && h->plt.offset != (bfd_vma) -1) | |
2386 | continue; | |
2387 | ||
252b5132 RH |
2388 | switch (r_type) |
2389 | { | |
2390 | case R_ARM_PC24: | |
c6596c5e | 2391 | case R_ARM_PLT32: |
5b5bb741 PB |
2392 | case R_ARM_CALL: |
2393 | case R_ARM_JUMP24: | |
252b5132 | 2394 | /* This one is a call from arm code. We need to look up |
2f0ca46a | 2395 | the target of the call. If it is a thumb target, we |
252b5132 | 2396 | insert glue. */ |
252b5132 RH |
2397 | if (ELF_ST_TYPE(h->type) == STT_ARM_TFUNC) |
2398 | record_arm_to_thumb_glue (link_info, h); | |
2399 | break; | |
2400 | ||
c19d1205 | 2401 | case R_ARM_THM_CALL: |
f21f3fe0 | 2402 | /* This one is a call from thumb code. We look |
2f0ca46a | 2403 | up the target of the call. If it is not a thumb |
bcbdc74c | 2404 | target, we insert glue. */ |
252b5132 RH |
2405 | if (ELF_ST_TYPE (h->type) != STT_ARM_TFUNC) |
2406 | record_thumb_to_arm_glue (link_info, h); | |
2407 | break; | |
2408 | ||
2409 | default: | |
c6596c5e | 2410 | abort (); |
252b5132 RH |
2411 | } |
2412 | } | |
6cdc0ccc AM |
2413 | |
2414 | if (contents != NULL | |
2415 | && elf_section_data (sec)->this_hdr.contents != contents) | |
2416 | free (contents); | |
2417 | contents = NULL; | |
2418 | ||
2419 | if (internal_relocs != NULL | |
2420 | && elf_section_data (sec)->relocs != internal_relocs) | |
2421 | free (internal_relocs); | |
2422 | internal_relocs = NULL; | |
252b5132 RH |
2423 | } |
2424 | ||
b34976b6 | 2425 | return TRUE; |
9a5aca8c | 2426 | |
252b5132 | 2427 | error_return: |
6cdc0ccc AM |
2428 | if (contents != NULL |
2429 | && elf_section_data (sec)->this_hdr.contents != contents) | |
2430 | free (contents); | |
2431 | if (internal_relocs != NULL | |
2432 | && elf_section_data (sec)->relocs != internal_relocs) | |
2433 | free (internal_relocs); | |
9a5aca8c | 2434 | |
b34976b6 | 2435 | return FALSE; |
252b5132 | 2436 | } |
7e392df6 | 2437 | #endif |
252b5132 | 2438 | |
eb043451 | 2439 | |
eb043451 PB |
2440 | /* Set target relocation values needed during linking. */ |
2441 | ||
2442 | void | |
2443 | bfd_elf32_arm_set_target_relocs (struct bfd_link_info *link_info, | |
2444 | int target1_is_rel, | |
319850b4 | 2445 | char * target2_type, |
33bfe774 JB |
2446 | int fix_v4bx, |
2447 | int use_blx) | |
eb043451 PB |
2448 | { |
2449 | struct elf32_arm_link_hash_table *globals; | |
2450 | ||
2451 | globals = elf32_arm_hash_table (link_info); | |
2452 | ||
2453 | globals->target1_is_rel = target1_is_rel; | |
2454 | if (strcmp (target2_type, "rel") == 0) | |
2455 | globals->target2_reloc = R_ARM_REL32; | |
eeac373a PB |
2456 | else if (strcmp (target2_type, "abs") == 0) |
2457 | globals->target2_reloc = R_ARM_ABS32; | |
eb043451 PB |
2458 | else if (strcmp (target2_type, "got-rel") == 0) |
2459 | globals->target2_reloc = R_ARM_GOT_PREL; | |
2460 | else | |
2461 | { | |
2462 | _bfd_error_handler (_("Invalid TARGET2 relocation type '%s'."), | |
2463 | target2_type); | |
2464 | } | |
319850b4 | 2465 | globals->fix_v4bx = fix_v4bx; |
33bfe774 | 2466 | globals->use_blx |= use_blx; |
eb043451 | 2467 | } |
eb043451 | 2468 | |
252b5132 RH |
2469 | /* The thumb form of a long branch is a bit finicky, because the offset |
2470 | encoding is split over two fields, each in it's own instruction. They | |
f21f3fe0 | 2471 | can occur in any order. So given a thumb form of long branch, and an |
252b5132 | 2472 | offset, insert the offset into the thumb branch and return finished |
f21f3fe0 | 2473 | instruction. |
252b5132 | 2474 | |
f21f3fe0 | 2475 | It takes two thumb instructions to encode the target address. Each has |
4cc11e76 | 2476 | 11 bits to invest. The upper 11 bits are stored in one (identified by |
f21f3fe0 UD |
2477 | H-0.. see below), the lower 11 bits are stored in the other (identified |
2478 | by H-1). | |
252b5132 | 2479 | |
f21f3fe0 | 2480 | Combine together and shifted left by 1 (it's a half word address) and |
252b5132 RH |
2481 | there you have it. |
2482 | ||
2483 | Op: 1111 = F, | |
2484 | H-0, upper address-0 = 000 | |
2485 | Op: 1111 = F, | |
2486 | H-1, lower address-0 = 800 | |
2487 | ||
f21f3fe0 | 2488 | They can be ordered either way, but the arm tools I've seen always put |
252b5132 RH |
2489 | the lower one first. It probably doesn't matter. krk@cygnus.com |
2490 | ||
2491 | XXX: Actually the order does matter. The second instruction (H-1) | |
2492 | moves the computed address into the PC, so it must be the second one | |
2493 | in the sequence. The problem, however is that whilst little endian code | |
2494 | stores the instructions in HI then LOW order, big endian code does the | |
dfc5f959 | 2495 | reverse. nickc@cygnus.com. */ |
252b5132 | 2496 | |
dfc5f959 NC |
2497 | #define LOW_HI_ORDER 0xF800F000 |
2498 | #define HI_LOW_ORDER 0xF000F800 | |
252b5132 RH |
2499 | |
2500 | static insn32 | |
57e8b36a | 2501 | insert_thumb_branch (insn32 br_insn, int rel_off) |
252b5132 RH |
2502 | { |
2503 | unsigned int low_bits; | |
2504 | unsigned int high_bits; | |
2505 | ||
252b5132 RH |
2506 | BFD_ASSERT ((rel_off & 1) != 1); |
2507 | ||
dfc5f959 NC |
2508 | rel_off >>= 1; /* Half word aligned address. */ |
2509 | low_bits = rel_off & 0x000007FF; /* The bottom 11 bits. */ | |
2510 | high_bits = (rel_off >> 11) & 0x000007FF; /* The top 11 bits. */ | |
252b5132 RH |
2511 | |
2512 | if ((br_insn & LOW_HI_ORDER) == LOW_HI_ORDER) | |
2513 | br_insn = LOW_HI_ORDER | (low_bits << 16) | high_bits; | |
2514 | else if ((br_insn & HI_LOW_ORDER) == HI_LOW_ORDER) | |
2515 | br_insn = HI_LOW_ORDER | (high_bits << 16) | low_bits; | |
2516 | else | |
9b485d32 | 2517 | /* FIXME: abort is probably not the right call. krk@cygnus.com */ |
57e8b36a | 2518 | abort (); /* Error - not a valid branch instruction form. */ |
252b5132 | 2519 | |
252b5132 RH |
2520 | return br_insn; |
2521 | } | |
2522 | ||
9b485d32 NC |
2523 | /* Thumb code calling an ARM function. */ |
2524 | ||
252b5132 | 2525 | static int |
57e8b36a NC |
2526 | elf32_thumb_to_arm_stub (struct bfd_link_info * info, |
2527 | const char * name, | |
2528 | bfd * input_bfd, | |
2529 | bfd * output_bfd, | |
2530 | asection * input_section, | |
2531 | bfd_byte * hit_data, | |
2532 | asection * sym_sec, | |
2533 | bfd_vma offset, | |
2534 | bfd_signed_vma addend, | |
2535 | bfd_vma val) | |
252b5132 | 2536 | { |
bcbdc74c | 2537 | asection * s = 0; |
dc810e39 | 2538 | bfd_vma my_offset; |
252b5132 RH |
2539 | unsigned long int tmp; |
2540 | long int ret_offset; | |
bcbdc74c NC |
2541 | struct elf_link_hash_entry * myh; |
2542 | struct elf32_arm_link_hash_table * globals; | |
252b5132 RH |
2543 | |
2544 | myh = find_thumb_glue (info, name, input_bfd); | |
2545 | if (myh == NULL) | |
b34976b6 | 2546 | return FALSE; |
252b5132 RH |
2547 | |
2548 | globals = elf32_arm_hash_table (info); | |
2549 | ||
2550 | BFD_ASSERT (globals != NULL); | |
2551 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2552 | ||
2553 | my_offset = myh->root.u.def.value; | |
2554 | ||
2555 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, | |
2556 | THUMB2ARM_GLUE_SECTION_NAME); | |
2557 | ||
2558 | BFD_ASSERT (s != NULL); | |
2559 | BFD_ASSERT (s->contents != NULL); | |
2560 | BFD_ASSERT (s->output_section != NULL); | |
2561 | ||
2562 | if ((my_offset & 0x01) == 0x01) | |
2563 | { | |
2564 | if (sym_sec != NULL | |
2565 | && sym_sec->owner != NULL | |
2566 | && !INTERWORK_FLAG (sym_sec->owner)) | |
2567 | { | |
8f615d07 | 2568 | (*_bfd_error_handler) |
d003868e AM |
2569 | (_("%B(%s): warning: interworking not enabled.\n" |
2570 | " first occurrence: %B: thumb call to arm"), | |
2571 | sym_sec->owner, input_bfd, name); | |
252b5132 | 2572 | |
b34976b6 | 2573 | return FALSE; |
252b5132 RH |
2574 | } |
2575 | ||
2576 | --my_offset; | |
2577 | myh->root.u.def.value = my_offset; | |
2578 | ||
dc810e39 | 2579 | bfd_put_16 (output_bfd, (bfd_vma) t2a1_bx_pc_insn, |
252b5132 RH |
2580 | s->contents + my_offset); |
2581 | ||
dc810e39 | 2582 | bfd_put_16 (output_bfd, (bfd_vma) t2a2_noop_insn, |
252b5132 RH |
2583 | s->contents + my_offset + 2); |
2584 | ||
2585 | ret_offset = | |
9b485d32 NC |
2586 | /* Address of destination of the stub. */ |
2587 | ((bfd_signed_vma) val) | |
252b5132 | 2588 | - ((bfd_signed_vma) |
57e8b36a NC |
2589 | /* Offset from the start of the current section |
2590 | to the start of the stubs. */ | |
9b485d32 NC |
2591 | (s->output_offset |
2592 | /* Offset of the start of this stub from the start of the stubs. */ | |
2593 | + my_offset | |
2594 | /* Address of the start of the current section. */ | |
2595 | + s->output_section->vma) | |
2596 | /* The branch instruction is 4 bytes into the stub. */ | |
2597 | + 4 | |
2598 | /* ARM branches work from the pc of the instruction + 8. */ | |
2599 | + 8); | |
252b5132 RH |
2600 | |
2601 | bfd_put_32 (output_bfd, | |
dc810e39 | 2602 | (bfd_vma) t2a3_b_insn | ((ret_offset >> 2) & 0x00FFFFFF), |
252b5132 RH |
2603 | s->contents + my_offset + 4); |
2604 | } | |
2605 | ||
2606 | BFD_ASSERT (my_offset <= globals->thumb_glue_size); | |
2607 | ||
427bfd90 NC |
2608 | /* Now go back and fix up the original BL insn to point to here. */ |
2609 | ret_offset = | |
2610 | /* Address of where the stub is located. */ | |
2611 | (s->output_section->vma + s->output_offset + my_offset) | |
2612 | /* Address of where the BL is located. */ | |
57e8b36a NC |
2613 | - (input_section->output_section->vma + input_section->output_offset |
2614 | + offset) | |
427bfd90 NC |
2615 | /* Addend in the relocation. */ |
2616 | - addend | |
2617 | /* Biassing for PC-relative addressing. */ | |
2618 | - 8; | |
252b5132 RH |
2619 | |
2620 | tmp = bfd_get_32 (input_bfd, hit_data | |
2621 | - input_section->vma); | |
2622 | ||
2623 | bfd_put_32 (output_bfd, | |
dc810e39 | 2624 | (bfd_vma) insert_thumb_branch (tmp, ret_offset), |
252b5132 RH |
2625 | hit_data - input_section->vma); |
2626 | ||
b34976b6 | 2627 | return TRUE; |
252b5132 RH |
2628 | } |
2629 | ||
9b485d32 NC |
2630 | /* Arm code calling a Thumb function. */ |
2631 | ||
252b5132 | 2632 | static int |
57e8b36a NC |
2633 | elf32_arm_to_thumb_stub (struct bfd_link_info * info, |
2634 | const char * name, | |
2635 | bfd * input_bfd, | |
2636 | bfd * output_bfd, | |
2637 | asection * input_section, | |
2638 | bfd_byte * hit_data, | |
2639 | asection * sym_sec, | |
2640 | bfd_vma offset, | |
2641 | bfd_signed_vma addend, | |
2642 | bfd_vma val) | |
252b5132 RH |
2643 | { |
2644 | unsigned long int tmp; | |
dc810e39 | 2645 | bfd_vma my_offset; |
bcbdc74c | 2646 | asection * s; |
252b5132 | 2647 | long int ret_offset; |
bcbdc74c NC |
2648 | struct elf_link_hash_entry * myh; |
2649 | struct elf32_arm_link_hash_table * globals; | |
252b5132 RH |
2650 | |
2651 | myh = find_arm_glue (info, name, input_bfd); | |
2652 | if (myh == NULL) | |
b34976b6 | 2653 | return FALSE; |
252b5132 RH |
2654 | |
2655 | globals = elf32_arm_hash_table (info); | |
2656 | ||
2657 | BFD_ASSERT (globals != NULL); | |
2658 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2659 | ||
2660 | my_offset = myh->root.u.def.value; | |
2661 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, | |
2662 | ARM2THUMB_GLUE_SECTION_NAME); | |
2663 | BFD_ASSERT (s != NULL); | |
2664 | BFD_ASSERT (s->contents != NULL); | |
2665 | BFD_ASSERT (s->output_section != NULL); | |
2666 | ||
2667 | if ((my_offset & 0x01) == 0x01) | |
2668 | { | |
2669 | if (sym_sec != NULL | |
2670 | && sym_sec->owner != NULL | |
2671 | && !INTERWORK_FLAG (sym_sec->owner)) | |
2672 | { | |
8f615d07 | 2673 | (*_bfd_error_handler) |
d003868e AM |
2674 | (_("%B(%s): warning: interworking not enabled.\n" |
2675 | " first occurrence: %B: arm call to thumb"), | |
2676 | sym_sec->owner, input_bfd, name); | |
252b5132 | 2677 | } |
9b485d32 | 2678 | |
252b5132 RH |
2679 | --my_offset; |
2680 | myh->root.u.def.value = my_offset; | |
2681 | ||
8f6277f5 PB |
2682 | if ((info->shared || globals->root.is_relocatable_executable)) |
2683 | { | |
2684 | /* For relocatable objects we can't use absolute addresses, | |
2685 | so construct the address from a relative offset. */ | |
2686 | /* TODO: If the offset is small it's probably worth | |
2687 | constructing the address with adds. */ | |
2688 | bfd_put_32 (output_bfd, (bfd_vma) a2t1p_ldr_insn, | |
2689 | s->contents + my_offset); | |
2690 | bfd_put_32 (output_bfd, (bfd_vma) a2t2p_add_pc_insn, | |
2691 | s->contents + my_offset + 4); | |
2692 | bfd_put_32 (output_bfd, (bfd_vma) a2t3p_bx_r12_insn, | |
2693 | s->contents + my_offset + 8); | |
2694 | /* Adjust the offset by 4 for the position of the add, | |
2695 | and 8 for the pipeline offset. */ | |
2696 | ret_offset = (val - (s->output_offset | |
2697 | + s->output_section->vma | |
2698 | + my_offset + 12)) | |
2699 | | 1; | |
2700 | bfd_put_32 (output_bfd, ret_offset, | |
2701 | s->contents + my_offset + 12); | |
2702 | } | |
2703 | else | |
2704 | { | |
2705 | bfd_put_32 (output_bfd, (bfd_vma) a2t1_ldr_insn, | |
2706 | s->contents + my_offset); | |
252b5132 | 2707 | |
8f6277f5 PB |
2708 | bfd_put_32 (output_bfd, (bfd_vma) a2t2_bx_r12_insn, |
2709 | s->contents + my_offset + 4); | |
252b5132 | 2710 | |
8f6277f5 PB |
2711 | /* It's a thumb address. Add the low order bit. */ |
2712 | bfd_put_32 (output_bfd, val | a2t3_func_addr_insn, | |
2713 | s->contents + my_offset + 8); | |
2714 | } | |
252b5132 RH |
2715 | } |
2716 | ||
2717 | BFD_ASSERT (my_offset <= globals->arm_glue_size); | |
2718 | ||
2719 | tmp = bfd_get_32 (input_bfd, hit_data); | |
2720 | tmp = tmp & 0xFF000000; | |
2721 | ||
9b485d32 | 2722 | /* Somehow these are both 4 too far, so subtract 8. */ |
dc810e39 AM |
2723 | ret_offset = (s->output_offset |
2724 | + my_offset | |
2725 | + s->output_section->vma | |
2726 | - (input_section->output_offset | |
2727 | + input_section->output_section->vma | |
2728 | + offset + addend) | |
2729 | - 8); | |
9a5aca8c | 2730 | |
252b5132 RH |
2731 | tmp = tmp | ((ret_offset >> 2) & 0x00FFFFFF); |
2732 | ||
dc810e39 | 2733 | bfd_put_32 (output_bfd, (bfd_vma) tmp, hit_data - input_section->vma); |
252b5132 | 2734 | |
b34976b6 | 2735 | return TRUE; |
252b5132 RH |
2736 | } |
2737 | ||
eb043451 PB |
2738 | /* Some relocations map to different relocations depending on the |
2739 | target. Return the real relocation. */ | |
2740 | static int | |
2741 | arm_real_reloc_type (struct elf32_arm_link_hash_table * globals, | |
2742 | int r_type) | |
2743 | { | |
2744 | switch (r_type) | |
2745 | { | |
2746 | case R_ARM_TARGET1: | |
2747 | if (globals->target1_is_rel) | |
2748 | return R_ARM_REL32; | |
2749 | else | |
2750 | return R_ARM_ABS32; | |
2751 | ||
2752 | case R_ARM_TARGET2: | |
2753 | return globals->target2_reloc; | |
2754 | ||
2755 | default: | |
2756 | return r_type; | |
2757 | } | |
2758 | } | |
eb043451 | 2759 | |
ba93b8ac DJ |
2760 | /* Return the base VMA address which should be subtracted from real addresses |
2761 | when resolving @dtpoff relocation. | |
2762 | This is PT_TLS segment p_vaddr. */ | |
2763 | ||
2764 | static bfd_vma | |
2765 | dtpoff_base (struct bfd_link_info *info) | |
2766 | { | |
2767 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2768 | if (elf_hash_table (info)->tls_sec == NULL) | |
2769 | return 0; | |
2770 | return elf_hash_table (info)->tls_sec->vma; | |
2771 | } | |
2772 | ||
2773 | /* Return the relocation value for @tpoff relocation | |
2774 | if STT_TLS virtual address is ADDRESS. */ | |
2775 | ||
2776 | static bfd_vma | |
2777 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
2778 | { | |
2779 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
2780 | bfd_vma base; | |
2781 | ||
2782 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2783 | if (htab->tls_sec == NULL) | |
2784 | return 0; | |
2785 | base = align_power ((bfd_vma) TCB_SIZE, htab->tls_sec->alignment_power); | |
2786 | return address - htab->tls_sec->vma + base; | |
2787 | } | |
2788 | ||
252b5132 | 2789 | /* Perform a relocation as part of a final link. */ |
9b485d32 | 2790 | |
252b5132 | 2791 | static bfd_reloc_status_type |
57e8b36a NC |
2792 | elf32_arm_final_link_relocate (reloc_howto_type * howto, |
2793 | bfd * input_bfd, | |
2794 | bfd * output_bfd, | |
2795 | asection * input_section, | |
2796 | bfd_byte * contents, | |
2797 | Elf_Internal_Rela * rel, | |
2798 | bfd_vma value, | |
2799 | struct bfd_link_info * info, | |
2800 | asection * sym_sec, | |
2801 | const char * sym_name, | |
2802 | int sym_flags, | |
0945cdfd DJ |
2803 | struct elf_link_hash_entry * h, |
2804 | bfd_boolean * unresolved_reloc_p) | |
252b5132 RH |
2805 | { |
2806 | unsigned long r_type = howto->type; | |
2807 | unsigned long r_symndx; | |
2808 | bfd_byte * hit_data = contents + rel->r_offset; | |
2809 | bfd * dynobj = NULL; | |
2810 | Elf_Internal_Shdr * symtab_hdr; | |
2811 | struct elf_link_hash_entry ** sym_hashes; | |
2812 | bfd_vma * local_got_offsets; | |
2813 | asection * sgot = NULL; | |
2814 | asection * splt = NULL; | |
2815 | asection * sreloc = NULL; | |
252b5132 | 2816 | bfd_vma addend; |
ba96a88f NC |
2817 | bfd_signed_vma signed_addend; |
2818 | struct elf32_arm_link_hash_table * globals; | |
f21f3fe0 | 2819 | |
9c504268 PB |
2820 | globals = elf32_arm_hash_table (info); |
2821 | ||
9c504268 PB |
2822 | /* Some relocation type map to different relocations depending on the |
2823 | target. We pick the right one here. */ | |
eb043451 PB |
2824 | r_type = arm_real_reloc_type (globals, r_type); |
2825 | if (r_type != howto->type) | |
2826 | howto = elf32_arm_howto_from_type (r_type); | |
9c504268 | 2827 | |
cac15327 NC |
2828 | /* If the start address has been set, then set the EF_ARM_HASENTRY |
2829 | flag. Setting this more than once is redundant, but the cost is | |
2830 | not too high, and it keeps the code simple. | |
99e4ae17 | 2831 | |
cac15327 NC |
2832 | The test is done here, rather than somewhere else, because the |
2833 | start address is only set just before the final link commences. | |
2834 | ||
2835 | Note - if the user deliberately sets a start address of 0, the | |
2836 | flag will not be set. */ | |
2837 | if (bfd_get_start_address (output_bfd) != 0) | |
2838 | elf_elfheader (output_bfd)->e_flags |= EF_ARM_HASENTRY; | |
99e4ae17 | 2839 | |
252b5132 RH |
2840 | dynobj = elf_hash_table (info)->dynobj; |
2841 | if (dynobj) | |
2842 | { | |
2843 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2844 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2845 | } | |
2846 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; | |
2847 | sym_hashes = elf_sym_hashes (input_bfd); | |
2848 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2849 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2850 | ||
4e7fd91e | 2851 | if (globals->use_rel) |
ba96a88f | 2852 | { |
4e7fd91e PB |
2853 | addend = bfd_get_32 (input_bfd, hit_data) & howto->src_mask; |
2854 | ||
2855 | if (addend & ((howto->src_mask + 1) >> 1)) | |
2856 | { | |
2857 | signed_addend = -1; | |
2858 | signed_addend &= ~ howto->src_mask; | |
2859 | signed_addend |= addend; | |
2860 | } | |
2861 | else | |
2862 | signed_addend = addend; | |
ba96a88f NC |
2863 | } |
2864 | else | |
4e7fd91e | 2865 | addend = signed_addend = rel->r_addend; |
f21f3fe0 | 2866 | |
252b5132 RH |
2867 | switch (r_type) |
2868 | { | |
2869 | case R_ARM_NONE: | |
28a094c2 DJ |
2870 | /* We don't need to find a value for this symbol. It's just a |
2871 | marker. */ | |
2872 | *unresolved_reloc_p = FALSE; | |
252b5132 RH |
2873 | return bfd_reloc_ok; |
2874 | ||
2875 | case R_ARM_PC24: | |
2876 | case R_ARM_ABS32: | |
2877 | case R_ARM_REL32: | |
5b5bb741 PB |
2878 | case R_ARM_CALL: |
2879 | case R_ARM_JUMP24: | |
dfc5f959 | 2880 | case R_ARM_XPC25: |
eb043451 | 2881 | case R_ARM_PREL31: |
7359ea65 | 2882 | case R_ARM_PLT32: |
5e681ec4 PB |
2883 | /* r_symndx will be zero only for relocs against symbols |
2884 | from removed linkonce sections, or sections discarded by | |
2885 | a linker script. */ | |
2886 | if (r_symndx == 0) | |
2887 | return bfd_reloc_ok; | |
2888 | ||
7359ea65 DJ |
2889 | /* Handle relocations which should use the PLT entry. ABS32/REL32 |
2890 | will use the symbol's value, which may point to a PLT entry, but we | |
2891 | don't need to handle that here. If we created a PLT entry, all | |
2892 | branches in this object should go to it. */ | |
ee06dc07 | 2893 | if ((r_type != R_ARM_ABS32 && r_type != R_ARM_REL32) |
7359ea65 | 2894 | && h != NULL |
c84cd8ee | 2895 | && splt != NULL |
7359ea65 DJ |
2896 | && h->plt.offset != (bfd_vma) -1) |
2897 | { | |
c84cd8ee DJ |
2898 | /* If we've created a .plt section, and assigned a PLT entry to |
2899 | this function, it should not be known to bind locally. If | |
2900 | it were, we would have cleared the PLT entry. */ | |
7359ea65 DJ |
2901 | BFD_ASSERT (!SYMBOL_CALLS_LOCAL (info, h)); |
2902 | ||
2903 | value = (splt->output_section->vma | |
2904 | + splt->output_offset | |
2905 | + h->plt.offset); | |
0945cdfd | 2906 | *unresolved_reloc_p = FALSE; |
7359ea65 DJ |
2907 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
2908 | contents, rel->r_offset, value, | |
2909 | (bfd_vma) 0); | |
2910 | } | |
2911 | ||
67687978 PB |
2912 | /* When generating a shared object or relocatable executable, these |
2913 | relocations are copied into the output file to be resolved at | |
2914 | run time. */ | |
2915 | if ((info->shared || globals->root.is_relocatable_executable) | |
7359ea65 | 2916 | && (input_section->flags & SEC_ALLOC) |
ee06dc07 PB |
2917 | && (r_type != R_ARM_REL32 |
2918 | || !SYMBOL_CALLS_LOCAL (info, h)) | |
7359ea65 DJ |
2919 | && (h == NULL |
2920 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2921 | || h->root.type != bfd_link_hash_undefweak) | |
2922 | && r_type != R_ARM_PC24 | |
5b5bb741 PB |
2923 | && r_type != R_ARM_CALL |
2924 | && r_type != R_ARM_JUMP24 | |
ee06dc07 | 2925 | && r_type != R_ARM_PREL31 |
7359ea65 | 2926 | && r_type != R_ARM_PLT32) |
252b5132 | 2927 | { |
947216bf AM |
2928 | Elf_Internal_Rela outrel; |
2929 | bfd_byte *loc; | |
b34976b6 | 2930 | bfd_boolean skip, relocate; |
f21f3fe0 | 2931 | |
0945cdfd DJ |
2932 | *unresolved_reloc_p = FALSE; |
2933 | ||
252b5132 RH |
2934 | if (sreloc == NULL) |
2935 | { | |
2936 | const char * name; | |
f21f3fe0 | 2937 | |
252b5132 RH |
2938 | name = (bfd_elf_string_from_elf_section |
2939 | (input_bfd, | |
2940 | elf_elfheader (input_bfd)->e_shstrndx, | |
2941 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
2942 | if (name == NULL) | |
2943 | return bfd_reloc_notsupported; | |
f21f3fe0 | 2944 | |
252b5132 RH |
2945 | BFD_ASSERT (strncmp (name, ".rel", 4) == 0 |
2946 | && strcmp (bfd_get_section_name (input_bfd, | |
2947 | input_section), | |
2948 | name + 4) == 0); | |
f21f3fe0 | 2949 | |
252b5132 RH |
2950 | sreloc = bfd_get_section_by_name (dynobj, name); |
2951 | BFD_ASSERT (sreloc != NULL); | |
2952 | } | |
f21f3fe0 | 2953 | |
b34976b6 AM |
2954 | skip = FALSE; |
2955 | relocate = FALSE; | |
f21f3fe0 | 2956 | |
c629eae0 JJ |
2957 | outrel.r_offset = |
2958 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2959 | rel->r_offset); | |
2960 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2961 | skip = TRUE; |
0bb2d96a | 2962 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2963 | skip = TRUE, relocate = TRUE; |
252b5132 RH |
2964 | outrel.r_offset += (input_section->output_section->vma |
2965 | + input_section->output_offset); | |
f21f3fe0 | 2966 | |
252b5132 | 2967 | if (skip) |
0bb2d96a | 2968 | memset (&outrel, 0, sizeof outrel); |
5e681ec4 PB |
2969 | else if (h != NULL |
2970 | && h->dynindx != -1 | |
7359ea65 | 2971 | && (!info->shared |
5e681ec4 | 2972 | || !info->symbolic |
f5385ebf | 2973 | || !h->def_regular)) |
5e681ec4 | 2974 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
252b5132 RH |
2975 | else |
2976 | { | |
a16385dc MM |
2977 | int symbol; |
2978 | ||
5e681ec4 PB |
2979 | /* This symbol is local, or marked to become local. */ |
2980 | relocate = TRUE; | |
b7693d02 DJ |
2981 | if (sym_flags == STT_ARM_TFUNC) |
2982 | value |= 1; | |
a16385dc | 2983 | if (globals->symbian_p) |
6366ff1e MM |
2984 | { |
2985 | /* On Symbian OS, the data segment and text segement | |
2986 | can be relocated independently. Therefore, we | |
2987 | must indicate the segment to which this | |
2988 | relocation is relative. The BPABI allows us to | |
2989 | use any symbol in the right segment; we just use | |
2990 | the section symbol as it is convenient. (We | |
2991 | cannot use the symbol given by "h" directly as it | |
2992 | will not appear in the dynamic symbol table.) */ | |
10dbd1f3 NC |
2993 | if (sym_sec) |
2994 | symbol = elf_section_data (sym_sec->output_section)->dynindx; | |
2995 | else | |
2996 | symbol = elf_section_data (input_section->output_section)->dynindx; | |
6366ff1e MM |
2997 | BFD_ASSERT (symbol != 0); |
2998 | } | |
a16385dc MM |
2999 | else |
3000 | /* On SVR4-ish systems, the dynamic loader cannot | |
3001 | relocate the text and data segments independently, | |
3002 | so the symbol does not matter. */ | |
3003 | symbol = 0; | |
3004 | outrel.r_info = ELF32_R_INFO (symbol, R_ARM_RELATIVE); | |
252b5132 | 3005 | } |
f21f3fe0 | 3006 | |
947216bf AM |
3007 | loc = sreloc->contents; |
3008 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel); | |
3009 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
9a5aca8c | 3010 | |
f21f3fe0 | 3011 | /* If this reloc is against an external symbol, we do not want to |
252b5132 | 3012 | fiddle with the addend. Otherwise, we need to include the symbol |
9b485d32 | 3013 | value so that it becomes an addend for the dynamic reloc. */ |
252b5132 RH |
3014 | if (! relocate) |
3015 | return bfd_reloc_ok; | |
9a5aca8c | 3016 | |
f21f3fe0 | 3017 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
252b5132 RH |
3018 | contents, rel->r_offset, value, |
3019 | (bfd_vma) 0); | |
3020 | } | |
3021 | else switch (r_type) | |
3022 | { | |
dfc5f959 | 3023 | case R_ARM_XPC25: /* Arm BLX instruction. */ |
5b5bb741 PB |
3024 | case R_ARM_CALL: |
3025 | case R_ARM_JUMP24: | |
dfc5f959 | 3026 | case R_ARM_PC24: /* Arm B/BL instruction */ |
7359ea65 | 3027 | case R_ARM_PLT32: |
dfc5f959 | 3028 | if (r_type == R_ARM_XPC25) |
252b5132 | 3029 | { |
dfc5f959 NC |
3030 | /* Check for Arm calling Arm function. */ |
3031 | /* FIXME: Should we translate the instruction into a BL | |
3032 | instruction instead ? */ | |
3033 | if (sym_flags != STT_ARM_TFUNC) | |
d003868e AM |
3034 | (*_bfd_error_handler) |
3035 | (_("\%B: Warning: Arm BLX instruction targets Arm function '%s'."), | |
3036 | input_bfd, | |
3037 | h ? h->root.root.string : "(local)"); | |
dfc5f959 NC |
3038 | } |
3039 | else | |
dfc5f959 NC |
3040 | { |
3041 | /* Check for Arm calling Thumb function. */ | |
3042 | if (sym_flags == STT_ARM_TFUNC) | |
3043 | { | |
57e8b36a NC |
3044 | elf32_arm_to_thumb_stub (info, sym_name, input_bfd, |
3045 | output_bfd, input_section, | |
3046 | hit_data, sym_sec, rel->r_offset, | |
dfc5f959 NC |
3047 | signed_addend, value); |
3048 | return bfd_reloc_ok; | |
3049 | } | |
252b5132 | 3050 | } |
ba96a88f | 3051 | |
dea514f5 PB |
3052 | /* The ARM ELF ABI says that this reloc is computed as: S - P + A |
3053 | where: | |
3054 | S is the address of the symbol in the relocation. | |
3055 | P is address of the instruction being relocated. | |
3056 | A is the addend (extracted from the instruction) in bytes. | |
3057 | ||
3058 | S is held in 'value'. | |
3059 | P is the base address of the section containing the | |
3060 | instruction plus the offset of the reloc into that | |
3061 | section, ie: | |
3062 | (input_section->output_section->vma + | |
3063 | input_section->output_offset + | |
3064 | rel->r_offset). | |
3065 | A is the addend, converted into bytes, ie: | |
3066 | (signed_addend * 4) | |
3067 | ||
3068 | Note: None of these operations have knowledge of the pipeline | |
3069 | size of the processor, thus it is up to the assembler to | |
3070 | encode this information into the addend. */ | |
3071 | value -= (input_section->output_section->vma | |
3072 | + input_section->output_offset); | |
3073 | value -= rel->r_offset; | |
4e7fd91e PB |
3074 | if (globals->use_rel) |
3075 | value += (signed_addend << howto->size); | |
3076 | else | |
3077 | /* RELA addends do not have to be adjusted by howto->size. */ | |
3078 | value += signed_addend; | |
23080146 | 3079 | |
dcb5e6e6 NC |
3080 | signed_addend = value; |
3081 | signed_addend >>= howto->rightshift; | |
9a5aca8c | 3082 | |
59f2c4e7 NC |
3083 | /* It is not an error for an undefined weak reference to be |
3084 | out of range. Any program that branches to such a symbol | |
9a5aca8c AM |
3085 | is going to crash anyway, so there is no point worrying |
3086 | about getting the destination exactly right. */ | |
59f2c4e7 NC |
3087 | if (! h || h->root.type != bfd_link_hash_undefweak) |
3088 | { | |
9b485d32 | 3089 | /* Perform a signed range check. */ |
dcb5e6e6 | 3090 | if ( signed_addend > ((bfd_signed_vma) (howto->dst_mask >> 1)) |
59f2c4e7 NC |
3091 | || signed_addend < - ((bfd_signed_vma) ((howto->dst_mask + 1) >> 1))) |
3092 | return bfd_reloc_overflow; | |
3093 | } | |
9a5aca8c | 3094 | |
dcb5e6e6 NC |
3095 | /* If necessary set the H bit in the BLX instruction. */ |
3096 | if (r_type == R_ARM_XPC25 && ((value & 2) == 2)) | |
3097 | value = (signed_addend & howto->dst_mask) | |
3098 | | (bfd_get_32 (input_bfd, hit_data) & (~ howto->dst_mask)) | |
3099 | | (1 << 24); | |
3100 | else | |
dcb5e6e6 NC |
3101 | value = (signed_addend & howto->dst_mask) |
3102 | | (bfd_get_32 (input_bfd, hit_data) & (~ howto->dst_mask)); | |
252b5132 | 3103 | break; |
f21f3fe0 | 3104 | |
252b5132 RH |
3105 | case R_ARM_ABS32: |
3106 | value += addend; | |
3107 | if (sym_flags == STT_ARM_TFUNC) | |
3108 | value |= 1; | |
3109 | break; | |
f21f3fe0 | 3110 | |
252b5132 RH |
3111 | case R_ARM_REL32: |
3112 | value -= (input_section->output_section->vma | |
62efb346 | 3113 | + input_section->output_offset + rel->r_offset); |
252b5132 RH |
3114 | value += addend; |
3115 | break; | |
eb043451 | 3116 | |
eb043451 PB |
3117 | case R_ARM_PREL31: |
3118 | value -= (input_section->output_section->vma | |
3119 | + input_section->output_offset + rel->r_offset); | |
3120 | value += signed_addend; | |
3121 | if (! h || h->root.type != bfd_link_hash_undefweak) | |
3122 | { | |
3123 | /* Check for overflow */ | |
3124 | if ((value ^ (value >> 1)) & (1 << 30)) | |
3125 | return bfd_reloc_overflow; | |
3126 | } | |
3127 | value &= 0x7fffffff; | |
3128 | value |= (bfd_get_32 (input_bfd, hit_data) & 0x80000000); | |
3129 | if (sym_flags == STT_ARM_TFUNC) | |
3130 | value |= 1; | |
3131 | break; | |
252b5132 | 3132 | } |
f21f3fe0 | 3133 | |
252b5132 RH |
3134 | bfd_put_32 (input_bfd, value, hit_data); |
3135 | return bfd_reloc_ok; | |
3136 | ||
3137 | case R_ARM_ABS8: | |
3138 | value += addend; | |
3139 | if ((long) value > 0x7f || (long) value < -0x80) | |
3140 | return bfd_reloc_overflow; | |
3141 | ||
3142 | bfd_put_8 (input_bfd, value, hit_data); | |
3143 | return bfd_reloc_ok; | |
3144 | ||
3145 | case R_ARM_ABS16: | |
3146 | value += addend; | |
3147 | ||
3148 | if ((long) value > 0x7fff || (long) value < -0x8000) | |
3149 | return bfd_reloc_overflow; | |
3150 | ||
3151 | bfd_put_16 (input_bfd, value, hit_data); | |
3152 | return bfd_reloc_ok; | |
3153 | ||
3154 | case R_ARM_ABS12: | |
3155 | /* Support ldr and str instruction for the arm */ | |
3156 | /* Also thumb b (unconditional branch). ??? Really? */ | |
3157 | value += addend; | |
3158 | ||
3159 | if ((long) value > 0x7ff || (long) value < -0x800) | |
3160 | return bfd_reloc_overflow; | |
3161 | ||
3162 | value |= (bfd_get_32 (input_bfd, hit_data) & 0xfffff000); | |
3163 | bfd_put_32 (input_bfd, value, hit_data); | |
3164 | return bfd_reloc_ok; | |
3165 | ||
3166 | case R_ARM_THM_ABS5: | |
9b485d32 | 3167 | /* Support ldr and str instructions for the thumb. */ |
4e7fd91e PB |
3168 | if (globals->use_rel) |
3169 | { | |
3170 | /* Need to refetch addend. */ | |
3171 | addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask; | |
3172 | /* ??? Need to determine shift amount from operand size. */ | |
3173 | addend >>= howto->rightshift; | |
3174 | } | |
252b5132 RH |
3175 | value += addend; |
3176 | ||
3177 | /* ??? Isn't value unsigned? */ | |
3178 | if ((long) value > 0x1f || (long) value < -0x10) | |
3179 | return bfd_reloc_overflow; | |
3180 | ||
3181 | /* ??? Value needs to be properly shifted into place first. */ | |
3182 | value |= bfd_get_16 (input_bfd, hit_data) & 0xf83f; | |
3183 | bfd_put_16 (input_bfd, value, hit_data); | |
3184 | return bfd_reloc_ok; | |
3185 | ||
dfc5f959 | 3186 | case R_ARM_THM_XPC22: |
c19d1205 | 3187 | case R_ARM_THM_CALL: |
dfc5f959 | 3188 | /* Thumb BL (branch long instruction). */ |
252b5132 | 3189 | { |
b34976b6 AM |
3190 | bfd_vma relocation; |
3191 | bfd_boolean overflow = FALSE; | |
3192 | bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data); | |
3193 | bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2); | |
df212a7e | 3194 | bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift; |
ba96a88f | 3195 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; |
b34976b6 | 3196 | bfd_vma check; |
252b5132 | 3197 | bfd_signed_vma signed_check; |
33bfe774 | 3198 | bfd_boolean thumb_plt_call = FALSE; |
252b5132 | 3199 | |
252b5132 RH |
3200 | /* Need to refetch the addend and squish the two 11 bit pieces |
3201 | together. */ | |
4e7fd91e PB |
3202 | if (globals->use_rel) |
3203 | { | |
3204 | bfd_vma upper = upper_insn & 0x7ff; | |
3205 | bfd_vma lower = lower_insn & 0x7ff; | |
3206 | upper = (upper ^ 0x400) - 0x400; /* Sign extend. */ | |
3207 | addend = (upper << 12) | (lower << 1); | |
3208 | signed_addend = addend; | |
3209 | } | |
cb1afa5c | 3210 | |
dfc5f959 NC |
3211 | if (r_type == R_ARM_THM_XPC22) |
3212 | { | |
3213 | /* Check for Thumb to Thumb call. */ | |
3214 | /* FIXME: Should we translate the instruction into a BL | |
3215 | instruction instead ? */ | |
3216 | if (sym_flags == STT_ARM_TFUNC) | |
d003868e AM |
3217 | (*_bfd_error_handler) |
3218 | (_("%B: Warning: Thumb BLX instruction targets thumb function '%s'."), | |
3219 | input_bfd, | |
3220 | h ? h->root.root.string : "(local)"); | |
dfc5f959 NC |
3221 | } |
3222 | else | |
252b5132 | 3223 | { |
dfc5f959 NC |
3224 | /* If it is not a call to Thumb, assume call to Arm. |
3225 | If it is a call relative to a section name, then it is not a | |
b7693d02 DJ |
3226 | function call at all, but rather a long jump. Calls through |
3227 | the PLT do not require stubs. */ | |
3228 | if (sym_flags != STT_ARM_TFUNC && sym_flags != STT_SECTION | |
3229 | && (h == NULL || splt == NULL | |
3230 | || h->plt.offset == (bfd_vma) -1)) | |
dfc5f959 NC |
3231 | { |
3232 | if (elf32_thumb_to_arm_stub | |
3233 | (info, sym_name, input_bfd, output_bfd, input_section, | |
3234 | hit_data, sym_sec, rel->r_offset, signed_addend, value)) | |
3235 | return bfd_reloc_ok; | |
3236 | else | |
3237 | return bfd_reloc_dangerous; | |
3238 | } | |
252b5132 | 3239 | } |
f21f3fe0 | 3240 | |
b7693d02 DJ |
3241 | /* Handle calls via the PLT. */ |
3242 | if (h != NULL && splt != NULL && h->plt.offset != (bfd_vma) -1) | |
3243 | { | |
3244 | value = (splt->output_section->vma | |
3245 | + splt->output_offset | |
3246 | + h->plt.offset); | |
33bfe774 JB |
3247 | if (globals->use_blx) |
3248 | { | |
3249 | /* If the Thumb BLX instruction is available, convert the | |
3250 | BL to a BLX instruction to call the ARM-mode PLT entry. */ | |
3251 | if ((lower_insn & (0x3 << 11)) == 0x3 << 11) | |
3252 | { | |
3253 | lower_insn = (lower_insn & ~(0x3 << 11)) | 0x1 << 11; | |
3254 | thumb_plt_call = TRUE; | |
3255 | } | |
3256 | } | |
3257 | else | |
3258 | /* Target the Thumb stub before the ARM PLT entry. */ | |
3259 | value -= PLT_THUMB_STUB_SIZE; | |
0945cdfd | 3260 | *unresolved_reloc_p = FALSE; |
b7693d02 DJ |
3261 | } |
3262 | ||
ba96a88f | 3263 | relocation = value + signed_addend; |
f21f3fe0 | 3264 | |
252b5132 | 3265 | relocation -= (input_section->output_section->vma |
ba96a88f NC |
3266 | + input_section->output_offset |
3267 | + rel->r_offset); | |
9a5aca8c | 3268 | |
252b5132 RH |
3269 | check = relocation >> howto->rightshift; |
3270 | ||
3271 | /* If this is a signed value, the rightshift just dropped | |
3272 | leading 1 bits (assuming twos complement). */ | |
3273 | if ((bfd_signed_vma) relocation >= 0) | |
3274 | signed_check = check; | |
3275 | else | |
3276 | signed_check = check | ~((bfd_vma) -1 >> howto->rightshift); | |
3277 | ||
252b5132 | 3278 | /* Assumes two's complement. */ |
ba96a88f | 3279 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) |
b34976b6 | 3280 | overflow = TRUE; |
252b5132 | 3281 | |
33bfe774 JB |
3282 | if ((r_type == R_ARM_THM_XPC22 |
3283 | && ((lower_insn & 0x1800) == 0x0800)) | |
3284 | || thumb_plt_call) | |
c62e1cc3 NC |
3285 | /* For a BLX instruction, make sure that the relocation is rounded up |
3286 | to a word boundary. This follows the semantics of the instruction | |
3287 | which specifies that bit 1 of the target address will come from bit | |
3288 | 1 of the base address. */ | |
3289 | relocation = (relocation + 2) & ~ 3; | |
cb1afa5c | 3290 | |
c62e1cc3 NC |
3291 | /* Put RELOCATION back into the insn. */ |
3292 | upper_insn = (upper_insn & ~(bfd_vma) 0x7ff) | ((relocation >> 12) & 0x7ff); | |
3293 | lower_insn = (lower_insn & ~(bfd_vma) 0x7ff) | ((relocation >> 1) & 0x7ff); | |
3294 | ||
252b5132 RH |
3295 | /* Put the relocated value back in the object file: */ |
3296 | bfd_put_16 (input_bfd, upper_insn, hit_data); | |
3297 | bfd_put_16 (input_bfd, lower_insn, hit_data + 2); | |
3298 | ||
3299 | return (overflow ? bfd_reloc_overflow : bfd_reloc_ok); | |
3300 | } | |
3301 | break; | |
3302 | ||
c19d1205 ZW |
3303 | case R_ARM_THM_JUMP24: |
3304 | /* Thumb32 unconditional branch instruction. */ | |
3305 | { | |
3306 | bfd_vma relocation; | |
3307 | bfd_boolean overflow = FALSE; | |
3308 | bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data); | |
3309 | bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2); | |
3310 | bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift; | |
3311 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; | |
3312 | bfd_vma check; | |
3313 | bfd_signed_vma signed_check; | |
3314 | ||
3315 | /* Need to refetch the addend, reconstruct the top three bits, and glue the | |
3316 | two pieces together. */ | |
3317 | if (globals->use_rel) | |
3318 | { | |
3319 | bfd_vma S = (upper_insn & 0x0400) >> 10; | |
3320 | bfd_vma hi = (upper_insn & 0x03ff); | |
3321 | bfd_vma I1 = (lower_insn & 0x2000) >> 13; | |
3322 | bfd_vma I2 = (lower_insn & 0x0800) >> 11; | |
3323 | bfd_vma lo = (lower_insn & 0x07ff); | |
3324 | ||
3325 | I1 = !(I1 ^ S); | |
3326 | I2 = !(I2 ^ S); | |
3327 | S = !S; | |
3328 | ||
3329 | signed_addend = (S << 24) | (I1 << 23) | (I2 << 22) | (hi << 12) | (lo << 1); | |
3330 | signed_addend -= (1 << 24); /* Sign extend. */ | |
3331 | } | |
3332 | ||
3333 | /* ??? Should handle interworking? GCC might someday try to | |
3334 | use this for tail calls. */ | |
3335 | ||
3336 | relocation = value + signed_addend; | |
3337 | relocation -= (input_section->output_section->vma | |
3338 | + input_section->output_offset | |
3339 | + rel->r_offset); | |
3340 | ||
3341 | check = relocation >> howto->rightshift; | |
3342 | ||
3343 | /* If this is a signed value, the rightshift just dropped | |
3344 | leading 1 bits (assuming twos complement). */ | |
3345 | if ((bfd_signed_vma) relocation >= 0) | |
3346 | signed_check = check; | |
3347 | else | |
3348 | signed_check = check | ~((bfd_vma) -1 >> howto->rightshift); | |
3349 | ||
3350 | /* Assumes two's complement. */ | |
3351 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) | |
3352 | overflow = TRUE; | |
3353 | ||
3354 | /* Put RELOCATION back into the insn. */ | |
3355 | { | |
3356 | bfd_vma S = (relocation & 0x01000000) >> 24; | |
3357 | bfd_vma I1 = (relocation & 0x00800000) >> 23; | |
3358 | bfd_vma I2 = (relocation & 0x00400000) >> 22; | |
3359 | bfd_vma hi = (relocation & 0x003ff000) >> 12; | |
3360 | bfd_vma lo = (relocation & 0x00000ffe) >> 1; | |
3361 | ||
3362 | I1 = !(I1 ^ S); | |
3363 | I2 = !(I2 ^ S); | |
3364 | ||
3365 | upper_insn = (upper_insn & (bfd_vma) 0xf800) | (S << 10) | hi; | |
3366 | lower_insn = (lower_insn & (bfd_vma) 0xd000) | (I1 << 13) | (I2 << 11) | lo; | |
3367 | } | |
3368 | ||
3369 | /* Put the relocated value back in the object file: */ | |
3370 | bfd_put_16 (input_bfd, upper_insn, hit_data); | |
3371 | bfd_put_16 (input_bfd, lower_insn, hit_data + 2); | |
3372 | ||
3373 | return (overflow ? bfd_reloc_overflow : bfd_reloc_ok); | |
3374 | } | |
3375 | ||
3376 | case R_ARM_THM_JUMP19: | |
3377 | /* Thumb32 conditional branch instruction. */ | |
3378 | { | |
3379 | bfd_vma relocation; | |
3380 | bfd_boolean overflow = FALSE; | |
3381 | bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data); | |
3382 | bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2); | |
3383 | bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift; | |
3384 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; | |
3385 | bfd_vma check; | |
3386 | bfd_signed_vma signed_check; | |
3387 | ||
3388 | /* Need to refetch the addend, reconstruct the top three bits, | |
3389 | and squish the two 11 bit pieces together. */ | |
3390 | if (globals->use_rel) | |
3391 | { | |
3392 | bfd_vma S = (upper_insn & 0x0400) >> 10; | |
3393 | bfd_vma upper = (upper_insn & 0x001f); | |
3394 | bfd_vma J1 = (lower_insn & 0x2000) >> 13; | |
3395 | bfd_vma J2 = (lower_insn & 0x0800) >> 11; | |
3396 | bfd_vma lower = (lower_insn & 0x07ff); | |
3397 | ||
3398 | upper |= J2 << 6; | |
3399 | upper |= J1 << 7; | |
3400 | upper |= ~S << 8; | |
3401 | upper -= 0x0100; /* Sign extend. */ | |
3402 | ||
3403 | addend = (upper << 12) | (lower << 1); | |
3404 | signed_addend = addend; | |
3405 | } | |
3406 | ||
3407 | /* ??? Should handle interworking? GCC might someday try to | |
3408 | use this for tail calls. */ | |
3409 | ||
3410 | relocation = value + signed_addend; | |
3411 | relocation -= (input_section->output_section->vma | |
3412 | + input_section->output_offset | |
3413 | + rel->r_offset); | |
3414 | ||
3415 | check = relocation >> howto->rightshift; | |
3416 | ||
3417 | /* If this is a signed value, the rightshift just dropped | |
3418 | leading 1 bits (assuming twos complement). */ | |
3419 | if ((bfd_signed_vma) relocation >= 0) | |
3420 | signed_check = check; | |
3421 | else | |
3422 | signed_check = check | ~((bfd_vma) -1 >> howto->rightshift); | |
3423 | ||
3424 | /* Assumes two's complement. */ | |
3425 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) | |
3426 | overflow = TRUE; | |
3427 | ||
3428 | /* Put RELOCATION back into the insn. */ | |
3429 | { | |
3430 | bfd_vma S = (relocation & 0x00100000) >> 20; | |
3431 | bfd_vma J2 = (relocation & 0x00080000) >> 19; | |
3432 | bfd_vma J1 = (relocation & 0x00040000) >> 18; | |
3433 | bfd_vma hi = (relocation & 0x0003f000) >> 12; | |
3434 | bfd_vma lo = (relocation & 0x00000ffe) >> 1; | |
3435 | ||
3436 | upper_insn = (upper_insn & 0xfb30) | (S << 10) | hi; | |
3437 | lower_insn = (lower_insn & 0xd000) | (J1 << 13) | (J2 << 11) | lo; | |
3438 | } | |
3439 | ||
3440 | /* Put the relocated value back in the object file: */ | |
3441 | bfd_put_16 (input_bfd, upper_insn, hit_data); | |
3442 | bfd_put_16 (input_bfd, lower_insn, hit_data + 2); | |
3443 | ||
3444 | return (overflow ? bfd_reloc_overflow : bfd_reloc_ok); | |
3445 | } | |
3446 | ||
3447 | case R_ARM_THM_JUMP11: | |
3448 | case R_ARM_THM_JUMP8: | |
3449 | case R_ARM_THM_JUMP6: | |
51c5503b NC |
3450 | /* Thumb B (branch) instruction). */ |
3451 | { | |
6cf9e9fe | 3452 | bfd_signed_vma relocation; |
51c5503b NC |
3453 | bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1; |
3454 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; | |
51c5503b NC |
3455 | bfd_signed_vma signed_check; |
3456 | ||
c19d1205 ZW |
3457 | /* CZB cannot jump backward. */ |
3458 | if (r_type == R_ARM_THM_JUMP6) | |
3459 | reloc_signed_min = 0; | |
3460 | ||
4e7fd91e | 3461 | if (globals->use_rel) |
6cf9e9fe | 3462 | { |
4e7fd91e PB |
3463 | /* Need to refetch addend. */ |
3464 | addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask; | |
3465 | if (addend & ((howto->src_mask + 1) >> 1)) | |
3466 | { | |
3467 | signed_addend = -1; | |
3468 | signed_addend &= ~ howto->src_mask; | |
3469 | signed_addend |= addend; | |
3470 | } | |
3471 | else | |
3472 | signed_addend = addend; | |
3473 | /* The value in the insn has been right shifted. We need to | |
3474 | undo this, so that we can perform the address calculation | |
3475 | in terms of bytes. */ | |
3476 | signed_addend <<= howto->rightshift; | |
6cf9e9fe | 3477 | } |
6cf9e9fe | 3478 | relocation = value + signed_addend; |
51c5503b NC |
3479 | |
3480 | relocation -= (input_section->output_section->vma | |
3481 | + input_section->output_offset | |
3482 | + rel->r_offset); | |
3483 | ||
6cf9e9fe NC |
3484 | relocation >>= howto->rightshift; |
3485 | signed_check = relocation; | |
c19d1205 ZW |
3486 | |
3487 | if (r_type == R_ARM_THM_JUMP6) | |
3488 | relocation = ((relocation & 0x0020) << 4) | ((relocation & 0x001f) << 3); | |
3489 | else | |
3490 | relocation &= howto->dst_mask; | |
51c5503b | 3491 | relocation |= (bfd_get_16 (input_bfd, hit_data) & (~ howto->dst_mask)); |
cedb70c5 | 3492 | |
51c5503b NC |
3493 | bfd_put_16 (input_bfd, relocation, hit_data); |
3494 | ||
3495 | /* Assumes two's complement. */ | |
3496 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) | |
3497 | return bfd_reloc_overflow; | |
3498 | ||
3499 | return bfd_reloc_ok; | |
3500 | } | |
cedb70c5 | 3501 | |
8375c36b PB |
3502 | case R_ARM_ALU_PCREL7_0: |
3503 | case R_ARM_ALU_PCREL15_8: | |
3504 | case R_ARM_ALU_PCREL23_15: | |
3505 | { | |
3506 | bfd_vma insn; | |
3507 | bfd_vma relocation; | |
3508 | ||
3509 | insn = bfd_get_32 (input_bfd, hit_data); | |
4e7fd91e PB |
3510 | if (globals->use_rel) |
3511 | { | |
3512 | /* Extract the addend. */ | |
3513 | addend = (insn & 0xff) << ((insn & 0xf00) >> 7); | |
3514 | signed_addend = addend; | |
3515 | } | |
8375c36b PB |
3516 | relocation = value + signed_addend; |
3517 | ||
3518 | relocation -= (input_section->output_section->vma | |
3519 | + input_section->output_offset | |
3520 | + rel->r_offset); | |
3521 | insn = (insn & ~0xfff) | |
3522 | | ((howto->bitpos << 7) & 0xf00) | |
3523 | | ((relocation >> howto->bitpos) & 0xff); | |
3524 | bfd_put_32 (input_bfd, value, hit_data); | |
3525 | } | |
3526 | return bfd_reloc_ok; | |
3527 | ||
252b5132 RH |
3528 | case R_ARM_GNU_VTINHERIT: |
3529 | case R_ARM_GNU_VTENTRY: | |
3530 | return bfd_reloc_ok; | |
3531 | ||
c19d1205 | 3532 | case R_ARM_GOTOFF32: |
252b5132 RH |
3533 | /* Relocation is relative to the start of the |
3534 | global offset table. */ | |
3535 | ||
3536 | BFD_ASSERT (sgot != NULL); | |
3537 | if (sgot == NULL) | |
3538 | return bfd_reloc_notsupported; | |
9a5aca8c | 3539 | |
cedb70c5 | 3540 | /* If we are addressing a Thumb function, we need to adjust the |
ee29b9fb RE |
3541 | address by one, so that attempts to call the function pointer will |
3542 | correctly interpret it as Thumb code. */ | |
3543 | if (sym_flags == STT_ARM_TFUNC) | |
3544 | value += 1; | |
3545 | ||
252b5132 RH |
3546 | /* Note that sgot->output_offset is not involved in this |
3547 | calculation. We always want the start of .got. If we | |
3548 | define _GLOBAL_OFFSET_TABLE in a different way, as is | |
3549 | permitted by the ABI, we might have to change this | |
9b485d32 | 3550 | calculation. */ |
252b5132 | 3551 | value -= sgot->output_section->vma; |
f21f3fe0 | 3552 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 AJ |
3553 | contents, rel->r_offset, value, |
3554 | (bfd_vma) 0); | |
252b5132 RH |
3555 | |
3556 | case R_ARM_GOTPC: | |
a7c10850 | 3557 | /* Use global offset table as symbol value. */ |
252b5132 | 3558 | BFD_ASSERT (sgot != NULL); |
f21f3fe0 | 3559 | |
252b5132 RH |
3560 | if (sgot == NULL) |
3561 | return bfd_reloc_notsupported; | |
3562 | ||
0945cdfd | 3563 | *unresolved_reloc_p = FALSE; |
252b5132 | 3564 | value = sgot->output_section->vma; |
f21f3fe0 | 3565 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 AJ |
3566 | contents, rel->r_offset, value, |
3567 | (bfd_vma) 0); | |
f21f3fe0 | 3568 | |
252b5132 | 3569 | case R_ARM_GOT32: |
eb043451 | 3570 | case R_ARM_GOT_PREL: |
252b5132 | 3571 | /* Relocation is to the entry for this symbol in the |
9b485d32 | 3572 | global offset table. */ |
252b5132 RH |
3573 | if (sgot == NULL) |
3574 | return bfd_reloc_notsupported; | |
f21f3fe0 | 3575 | |
252b5132 RH |
3576 | if (h != NULL) |
3577 | { | |
3578 | bfd_vma off; | |
5e681ec4 | 3579 | bfd_boolean dyn; |
f21f3fe0 | 3580 | |
252b5132 RH |
3581 | off = h->got.offset; |
3582 | BFD_ASSERT (off != (bfd_vma) -1); | |
5e681ec4 | 3583 | dyn = globals->root.dynamic_sections_created; |
f21f3fe0 | 3584 | |
5e681ec4 | 3585 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
50d6c878 | 3586 | || (info->shared |
5e681ec4 PB |
3587 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
3588 | || (ELF_ST_VISIBILITY (h->other) | |
3589 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
3590 | { |
3591 | /* This is actually a static link, or it is a -Bsymbolic link | |
3592 | and the symbol is defined locally. We must initialize this | |
3593 | entry in the global offset table. Since the offset must | |
3594 | always be a multiple of 4, we use the least significant bit | |
3595 | to record whether we have initialized it already. | |
f21f3fe0 | 3596 | |
252b5132 | 3597 | When doing a dynamic link, we create a .rel.got relocation |
f21f3fe0 | 3598 | entry to initialize the value. This is done in the |
9b485d32 | 3599 | finish_dynamic_symbol routine. */ |
252b5132 RH |
3600 | if ((off & 1) != 0) |
3601 | off &= ~1; | |
3602 | else | |
3603 | { | |
ee29b9fb RE |
3604 | /* If we are addressing a Thumb function, we need to |
3605 | adjust the address by one, so that attempts to | |
3606 | call the function pointer will correctly | |
3607 | interpret it as Thumb code. */ | |
3608 | if (sym_flags == STT_ARM_TFUNC) | |
3609 | value |= 1; | |
3610 | ||
252b5132 RH |
3611 | bfd_put_32 (output_bfd, value, sgot->contents + off); |
3612 | h->got.offset |= 1; | |
3613 | } | |
3614 | } | |
0945cdfd DJ |
3615 | else |
3616 | *unresolved_reloc_p = FALSE; | |
f21f3fe0 | 3617 | |
252b5132 RH |
3618 | value = sgot->output_offset + off; |
3619 | } | |
3620 | else | |
3621 | { | |
3622 | bfd_vma off; | |
f21f3fe0 | 3623 | |
252b5132 RH |
3624 | BFD_ASSERT (local_got_offsets != NULL && |
3625 | local_got_offsets[r_symndx] != (bfd_vma) -1); | |
f21f3fe0 | 3626 | |
252b5132 | 3627 | off = local_got_offsets[r_symndx]; |
f21f3fe0 | 3628 | |
252b5132 RH |
3629 | /* The offset must always be a multiple of 4. We use the |
3630 | least significant bit to record whether we have already | |
9b485d32 | 3631 | generated the necessary reloc. */ |
252b5132 RH |
3632 | if ((off & 1) != 0) |
3633 | off &= ~1; | |
3634 | else | |
3635 | { | |
b7693d02 DJ |
3636 | /* If we are addressing a Thumb function, we need to |
3637 | adjust the address by one, so that attempts to | |
3638 | call the function pointer will correctly | |
3639 | interpret it as Thumb code. */ | |
3640 | if (sym_flags == STT_ARM_TFUNC) | |
3641 | value |= 1; | |
3642 | ||
252b5132 | 3643 | bfd_put_32 (output_bfd, value, sgot->contents + off); |
f21f3fe0 | 3644 | |
252b5132 RH |
3645 | if (info->shared) |
3646 | { | |
3647 | asection * srelgot; | |
947216bf AM |
3648 | Elf_Internal_Rela outrel; |
3649 | bfd_byte *loc; | |
f21f3fe0 | 3650 | |
252b5132 RH |
3651 | srelgot = bfd_get_section_by_name (dynobj, ".rel.got"); |
3652 | BFD_ASSERT (srelgot != NULL); | |
f21f3fe0 | 3653 | |
252b5132 | 3654 | outrel.r_offset = (sgot->output_section->vma |
f21f3fe0 | 3655 | + sgot->output_offset |
252b5132 RH |
3656 | + off); |
3657 | outrel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE); | |
947216bf AM |
3658 | loc = srelgot->contents; |
3659 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rel); | |
3660 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
252b5132 | 3661 | } |
f21f3fe0 | 3662 | |
252b5132 RH |
3663 | local_got_offsets[r_symndx] |= 1; |
3664 | } | |
f21f3fe0 | 3665 | |
252b5132 RH |
3666 | value = sgot->output_offset + off; |
3667 | } | |
eb043451 PB |
3668 | if (r_type != R_ARM_GOT32) |
3669 | value += sgot->output_section->vma; | |
9a5aca8c | 3670 | |
f21f3fe0 | 3671 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 AJ |
3672 | contents, rel->r_offset, value, |
3673 | (bfd_vma) 0); | |
f21f3fe0 | 3674 | |
ba93b8ac DJ |
3675 | case R_ARM_TLS_LDO32: |
3676 | value = value - dtpoff_base (info); | |
3677 | ||
3678 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3679 | contents, rel->r_offset, value, (bfd_vma) 0); | |
3680 | ||
3681 | case R_ARM_TLS_LDM32: | |
3682 | { | |
3683 | bfd_vma off; | |
3684 | ||
3685 | if (globals->sgot == NULL) | |
3686 | abort (); | |
3687 | ||
3688 | off = globals->tls_ldm_got.offset; | |
3689 | ||
3690 | if ((off & 1) != 0) | |
3691 | off &= ~1; | |
3692 | else | |
3693 | { | |
3694 | /* If we don't know the module number, create a relocation | |
3695 | for it. */ | |
3696 | if (info->shared) | |
3697 | { | |
3698 | Elf_Internal_Rela outrel; | |
3699 | bfd_byte *loc; | |
3700 | ||
3701 | if (globals->srelgot == NULL) | |
3702 | abort (); | |
3703 | ||
3704 | outrel.r_offset = (globals->sgot->output_section->vma | |
3705 | + globals->sgot->output_offset + off); | |
3706 | outrel.r_info = ELF32_R_INFO (0, R_ARM_TLS_DTPMOD32); | |
3707 | ||
3708 | bfd_put_32 (output_bfd, 0, globals->sgot->contents + off); | |
3709 | ||
3710 | loc = globals->srelgot->contents; | |
3711 | loc += globals->srelgot->reloc_count++ * sizeof (Elf32_External_Rel); | |
3712 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
3713 | } | |
3714 | else | |
3715 | bfd_put_32 (output_bfd, 1, globals->sgot->contents + off); | |
3716 | ||
3717 | globals->tls_ldm_got.offset |= 1; | |
3718 | } | |
3719 | ||
3720 | value = globals->sgot->output_section->vma + globals->sgot->output_offset + off | |
3721 | - (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
3722 | ||
3723 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3724 | contents, rel->r_offset, value, | |
3725 | (bfd_vma) 0); | |
3726 | } | |
3727 | ||
3728 | case R_ARM_TLS_GD32: | |
3729 | case R_ARM_TLS_IE32: | |
3730 | { | |
3731 | bfd_vma off; | |
3732 | int indx; | |
3733 | char tls_type; | |
3734 | ||
3735 | if (globals->sgot == NULL) | |
3736 | abort (); | |
3737 | ||
3738 | indx = 0; | |
3739 | if (h != NULL) | |
3740 | { | |
3741 | bfd_boolean dyn; | |
3742 | dyn = globals->root.dynamic_sections_created; | |
3743 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
3744 | && (!info->shared | |
3745 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
3746 | { | |
3747 | *unresolved_reloc_p = FALSE; | |
3748 | indx = h->dynindx; | |
3749 | } | |
3750 | off = h->got.offset; | |
3751 | tls_type = ((struct elf32_arm_link_hash_entry *) h)->tls_type; | |
3752 | } | |
3753 | else | |
3754 | { | |
3755 | if (local_got_offsets == NULL) | |
3756 | abort (); | |
3757 | off = local_got_offsets[r_symndx]; | |
3758 | tls_type = elf32_arm_local_got_tls_type (input_bfd)[r_symndx]; | |
3759 | } | |
3760 | ||
3761 | if (tls_type == GOT_UNKNOWN) | |
3762 | abort (); | |
3763 | ||
3764 | if ((off & 1) != 0) | |
3765 | off &= ~1; | |
3766 | else | |
3767 | { | |
3768 | bfd_boolean need_relocs = FALSE; | |
3769 | Elf_Internal_Rela outrel; | |
3770 | bfd_byte *loc = NULL; | |
3771 | int cur_off = off; | |
3772 | ||
3773 | /* The GOT entries have not been initialized yet. Do it | |
3774 | now, and emit any relocations. If both an IE GOT and a | |
3775 | GD GOT are necessary, we emit the GD first. */ | |
3776 | ||
3777 | if ((info->shared || indx != 0) | |
3778 | && (h == NULL | |
3779 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
3780 | || h->root.type != bfd_link_hash_undefweak)) | |
3781 | { | |
3782 | need_relocs = TRUE; | |
3783 | if (globals->srelgot == NULL) | |
3784 | abort (); | |
3785 | loc = globals->srelgot->contents; | |
3786 | loc += globals->srelgot->reloc_count * sizeof (Elf32_External_Rel); | |
3787 | } | |
3788 | ||
3789 | if (tls_type & GOT_TLS_GD) | |
3790 | { | |
3791 | if (need_relocs) | |
3792 | { | |
3793 | outrel.r_offset = (globals->sgot->output_section->vma | |
3794 | + globals->sgot->output_offset + cur_off); | |
3795 | outrel.r_info = ELF32_R_INFO (indx, R_ARM_TLS_DTPMOD32); | |
3796 | bfd_put_32 (output_bfd, 0, globals->sgot->contents + cur_off); | |
3797 | ||
3798 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
3799 | globals->srelgot->reloc_count++; | |
3800 | loc += sizeof (Elf32_External_Rel); | |
3801 | ||
3802 | if (indx == 0) | |
3803 | bfd_put_32 (output_bfd, value - dtpoff_base (info), | |
3804 | globals->sgot->contents + cur_off + 4); | |
3805 | else | |
3806 | { | |
3807 | bfd_put_32 (output_bfd, 0, | |
3808 | globals->sgot->contents + cur_off + 4); | |
3809 | ||
3810 | outrel.r_info = ELF32_R_INFO (indx, | |
3811 | R_ARM_TLS_DTPOFF32); | |
3812 | outrel.r_offset += 4; | |
3813 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
3814 | globals->srelgot->reloc_count++; | |
3815 | loc += sizeof (Elf32_External_Rel); | |
3816 | } | |
3817 | } | |
3818 | else | |
3819 | { | |
3820 | /* If we are not emitting relocations for a | |
3821 | general dynamic reference, then we must be in a | |
3822 | static link or an executable link with the | |
3823 | symbol binding locally. Mark it as belonging | |
3824 | to module 1, the executable. */ | |
3825 | bfd_put_32 (output_bfd, 1, | |
3826 | globals->sgot->contents + cur_off); | |
3827 | bfd_put_32 (output_bfd, value - dtpoff_base (info), | |
3828 | globals->sgot->contents + cur_off + 4); | |
3829 | } | |
3830 | ||
3831 | cur_off += 8; | |
3832 | } | |
3833 | ||
3834 | if (tls_type & GOT_TLS_IE) | |
3835 | { | |
3836 | if (need_relocs) | |
3837 | { | |
3838 | outrel.r_offset = (globals->sgot->output_section->vma | |
3839 | + globals->sgot->output_offset | |
3840 | + cur_off); | |
3841 | outrel.r_info = ELF32_R_INFO (indx, R_ARM_TLS_TPOFF32); | |
3842 | ||
3843 | if (indx == 0) | |
3844 | bfd_put_32 (output_bfd, value - dtpoff_base (info), | |
3845 | globals->sgot->contents + cur_off); | |
3846 | else | |
3847 | bfd_put_32 (output_bfd, 0, | |
3848 | globals->sgot->contents + cur_off); | |
3849 | ||
3850 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
3851 | globals->srelgot->reloc_count++; | |
3852 | loc += sizeof (Elf32_External_Rel); | |
3853 | } | |
3854 | else | |
3855 | bfd_put_32 (output_bfd, tpoff (info, value), | |
3856 | globals->sgot->contents + cur_off); | |
3857 | cur_off += 4; | |
3858 | } | |
3859 | ||
3860 | if (h != NULL) | |
3861 | h->got.offset |= 1; | |
3862 | else | |
3863 | local_got_offsets[r_symndx] |= 1; | |
3864 | } | |
3865 | ||
3866 | if ((tls_type & GOT_TLS_GD) && r_type != R_ARM_TLS_GD32) | |
3867 | off += 8; | |
3868 | value = globals->sgot->output_section->vma + globals->sgot->output_offset + off | |
3869 | - (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
3870 | ||
3871 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3872 | contents, rel->r_offset, value, | |
3873 | (bfd_vma) 0); | |
3874 | } | |
3875 | ||
3876 | case R_ARM_TLS_LE32: | |
3877 | if (info->shared) | |
3878 | { | |
3879 | (*_bfd_error_handler) | |
3880 | (_("%B(%A+0x%lx): R_ARM_TLS_LE32 relocation not permitted in shared object"), | |
3881 | input_bfd, input_section, | |
3882 | (long) rel->r_offset, howto->name); | |
3883 | return FALSE; | |
3884 | } | |
3885 | else | |
3886 | value = tpoff (info, value); | |
3887 | ||
3888 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
3889 | contents, rel->r_offset, value, (bfd_vma) 0); | |
3890 | ||
319850b4 JB |
3891 | case R_ARM_V4BX: |
3892 | if (globals->fix_v4bx) | |
3893 | { | |
3894 | bfd_vma insn = bfd_get_32 (input_bfd, hit_data); | |
3895 | ||
3896 | /* Ensure that we have a BX instruction. */ | |
3897 | BFD_ASSERT ((insn & 0x0ffffff0) == 0x012fff10); | |
3898 | ||
3899 | /* Preserve Rm (lowest four bits) and the condition code | |
3900 | (highest four bits). Other bits encode MOV PC,Rm. */ | |
3901 | insn = (insn & 0xf000000f) | 0x01a0f000; | |
3902 | ||
3903 | bfd_put_32 (input_bfd, insn, hit_data); | |
3904 | } | |
3905 | return bfd_reloc_ok; | |
3906 | ||
252b5132 RH |
3907 | default: |
3908 | return bfd_reloc_notsupported; | |
3909 | } | |
3910 | } | |
3911 | ||
98c1d4aa NC |
3912 | /* Add INCREMENT to the reloc (of type HOWTO) at ADDRESS. */ |
3913 | static void | |
57e8b36a NC |
3914 | arm_add_to_rel (bfd * abfd, |
3915 | bfd_byte * address, | |
3916 | reloc_howto_type * howto, | |
3917 | bfd_signed_vma increment) | |
98c1d4aa | 3918 | { |
98c1d4aa NC |
3919 | bfd_signed_vma addend; |
3920 | ||
c19d1205 | 3921 | if (howto->type == R_ARM_THM_CALL) |
98c1d4aa | 3922 | { |
9a5aca8c AM |
3923 | int upper_insn, lower_insn; |
3924 | int upper, lower; | |
98c1d4aa | 3925 | |
9a5aca8c AM |
3926 | upper_insn = bfd_get_16 (abfd, address); |
3927 | lower_insn = bfd_get_16 (abfd, address + 2); | |
3928 | upper = upper_insn & 0x7ff; | |
3929 | lower = lower_insn & 0x7ff; | |
3930 | ||
3931 | addend = (upper << 12) | (lower << 1); | |
ddda4409 | 3932 | addend += increment; |
9a5aca8c | 3933 | addend >>= 1; |
98c1d4aa | 3934 | |
9a5aca8c AM |
3935 | upper_insn = (upper_insn & 0xf800) | ((addend >> 11) & 0x7ff); |
3936 | lower_insn = (lower_insn & 0xf800) | (addend & 0x7ff); | |
3937 | ||
dc810e39 AM |
3938 | bfd_put_16 (abfd, (bfd_vma) upper_insn, address); |
3939 | bfd_put_16 (abfd, (bfd_vma) lower_insn, address + 2); | |
9a5aca8c AM |
3940 | } |
3941 | else | |
3942 | { | |
3943 | bfd_vma contents; | |
3944 | ||
3945 | contents = bfd_get_32 (abfd, address); | |
3946 | ||
3947 | /* Get the (signed) value from the instruction. */ | |
3948 | addend = contents & howto->src_mask; | |
3949 | if (addend & ((howto->src_mask + 1) >> 1)) | |
3950 | { | |
3951 | bfd_signed_vma mask; | |
3952 | ||
3953 | mask = -1; | |
3954 | mask &= ~ howto->src_mask; | |
3955 | addend |= mask; | |
3956 | } | |
3957 | ||
3958 | /* Add in the increment, (which is a byte value). */ | |
3959 | switch (howto->type) | |
3960 | { | |
3961 | default: | |
3962 | addend += increment; | |
3963 | break; | |
3964 | ||
3965 | case R_ARM_PC24: | |
c6596c5e | 3966 | case R_ARM_PLT32: |
5b5bb741 PB |
3967 | case R_ARM_CALL: |
3968 | case R_ARM_JUMP24: | |
9a5aca8c | 3969 | addend <<= howto->size; |
dc810e39 | 3970 | addend += increment; |
9a5aca8c AM |
3971 | |
3972 | /* Should we check for overflow here ? */ | |
3973 | ||
3974 | /* Drop any undesired bits. */ | |
3975 | addend >>= howto->rightshift; | |
3976 | break; | |
3977 | } | |
3978 | ||
3979 | contents = (contents & ~ howto->dst_mask) | (addend & howto->dst_mask); | |
3980 | ||
3981 | bfd_put_32 (abfd, contents, address); | |
ddda4409 | 3982 | } |
98c1d4aa | 3983 | } |
252b5132 | 3984 | |
ba93b8ac DJ |
3985 | #define IS_ARM_TLS_RELOC(R_TYPE) \ |
3986 | ((R_TYPE) == R_ARM_TLS_GD32 \ | |
3987 | || (R_TYPE) == R_ARM_TLS_LDO32 \ | |
3988 | || (R_TYPE) == R_ARM_TLS_LDM32 \ | |
3989 | || (R_TYPE) == R_ARM_TLS_DTPOFF32 \ | |
3990 | || (R_TYPE) == R_ARM_TLS_DTPMOD32 \ | |
3991 | || (R_TYPE) == R_ARM_TLS_TPOFF32 \ | |
3992 | || (R_TYPE) == R_ARM_TLS_LE32 \ | |
3993 | || (R_TYPE) == R_ARM_TLS_IE32) | |
3994 | ||
252b5132 | 3995 | /* Relocate an ARM ELF section. */ |
b34976b6 | 3996 | static bfd_boolean |
57e8b36a NC |
3997 | elf32_arm_relocate_section (bfd * output_bfd, |
3998 | struct bfd_link_info * info, | |
3999 | bfd * input_bfd, | |
4000 | asection * input_section, | |
4001 | bfd_byte * contents, | |
4002 | Elf_Internal_Rela * relocs, | |
4003 | Elf_Internal_Sym * local_syms, | |
4004 | asection ** local_sections) | |
252b5132 | 4005 | { |
b34976b6 AM |
4006 | Elf_Internal_Shdr *symtab_hdr; |
4007 | struct elf_link_hash_entry **sym_hashes; | |
4008 | Elf_Internal_Rela *rel; | |
4009 | Elf_Internal_Rela *relend; | |
4010 | const char *name; | |
b32d3aa2 | 4011 | struct elf32_arm_link_hash_table * globals; |
252b5132 | 4012 | |
4e7fd91e PB |
4013 | globals = elf32_arm_hash_table (info); |
4014 | if (info->relocatable && !globals->use_rel) | |
b34976b6 | 4015 | return TRUE; |
b491616a | 4016 | |
252b5132 RH |
4017 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
4018 | sym_hashes = elf_sym_hashes (input_bfd); | |
4019 | ||
4020 | rel = relocs; | |
4021 | relend = relocs + input_section->reloc_count; | |
4022 | for (; rel < relend; rel++) | |
4023 | { | |
ba96a88f NC |
4024 | int r_type; |
4025 | reloc_howto_type * howto; | |
4026 | unsigned long r_symndx; | |
4027 | Elf_Internal_Sym * sym; | |
4028 | asection * sec; | |
252b5132 | 4029 | struct elf_link_hash_entry * h; |
ba96a88f NC |
4030 | bfd_vma relocation; |
4031 | bfd_reloc_status_type r; | |
4032 | arelent bfd_reloc; | |
ba93b8ac | 4033 | char sym_type; |
0945cdfd | 4034 | bfd_boolean unresolved_reloc = FALSE; |
f21f3fe0 | 4035 | |
252b5132 | 4036 | r_symndx = ELF32_R_SYM (rel->r_info); |
ba96a88f | 4037 | r_type = ELF32_R_TYPE (rel->r_info); |
b32d3aa2 | 4038 | r_type = arm_real_reloc_type (globals, r_type); |
252b5132 | 4039 | |
ba96a88f NC |
4040 | if ( r_type == R_ARM_GNU_VTENTRY |
4041 | || r_type == R_ARM_GNU_VTINHERIT) | |
252b5132 RH |
4042 | continue; |
4043 | ||
b32d3aa2 | 4044 | bfd_reloc.howto = elf32_arm_howto_from_type (r_type); |
ba96a88f | 4045 | howto = bfd_reloc.howto; |
252b5132 | 4046 | |
4e7fd91e | 4047 | if (info->relocatable && globals->use_rel) |
252b5132 | 4048 | { |
1049f94e | 4049 | /* This is a relocatable link. We don't have to change |
252b5132 RH |
4050 | anything, unless the reloc is against a section symbol, |
4051 | in which case we have to adjust according to where the | |
4052 | section symbol winds up in the output section. */ | |
4053 | if (r_symndx < symtab_hdr->sh_info) | |
4054 | { | |
4055 | sym = local_syms + r_symndx; | |
4056 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
4057 | { | |
4058 | sec = local_sections[r_symndx]; | |
98c1d4aa | 4059 | arm_add_to_rel (input_bfd, contents + rel->r_offset, |
dc810e39 AM |
4060 | howto, |
4061 | (bfd_signed_vma) (sec->output_offset | |
4062 | + sym->st_value)); | |
252b5132 RH |
4063 | } |
4064 | } | |
4065 | ||
4066 | continue; | |
4067 | } | |
4068 | ||
4069 | /* This is a final link. */ | |
4070 | h = NULL; | |
4071 | sym = NULL; | |
4072 | sec = NULL; | |
9b485d32 | 4073 | |
252b5132 RH |
4074 | if (r_symndx < symtab_hdr->sh_info) |
4075 | { | |
4076 | sym = local_syms + r_symndx; | |
ba93b8ac | 4077 | sym_type = ELF32_ST_TYPE (sym->st_info); |
252b5132 | 4078 | sec = local_sections[r_symndx]; |
4e7fd91e | 4079 | if (globals->use_rel) |
f8df10f4 | 4080 | { |
4e7fd91e PB |
4081 | relocation = (sec->output_section->vma |
4082 | + sec->output_offset | |
4083 | + sym->st_value); | |
4084 | if ((sec->flags & SEC_MERGE) | |
4085 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
f8df10f4 | 4086 | { |
4e7fd91e PB |
4087 | asection *msec; |
4088 | bfd_vma addend, value; | |
4089 | ||
4090 | if (howto->rightshift) | |
4091 | { | |
4092 | (*_bfd_error_handler) | |
4093 | (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"), | |
4094 | input_bfd, input_section, | |
4095 | (long) rel->r_offset, howto->name); | |
4096 | return FALSE; | |
4097 | } | |
f8df10f4 | 4098 | |
4e7fd91e | 4099 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); |
f8df10f4 | 4100 | |
4e7fd91e PB |
4101 | /* Get the (signed) value from the instruction. */ |
4102 | addend = value & howto->src_mask; | |
4103 | if (addend & ((howto->src_mask + 1) >> 1)) | |
4104 | { | |
4105 | bfd_signed_vma mask; | |
f8df10f4 | 4106 | |
4e7fd91e PB |
4107 | mask = -1; |
4108 | mask &= ~ howto->src_mask; | |
4109 | addend |= mask; | |
4110 | } | |
4111 | msec = sec; | |
4112 | addend = | |
4113 | _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) | |
4114 | - relocation; | |
4115 | addend += msec->output_section->vma + msec->output_offset; | |
4116 | value = (value & ~ howto->dst_mask) | (addend & howto->dst_mask); | |
4117 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
f8df10f4 | 4118 | } |
f8df10f4 | 4119 | } |
4e7fd91e PB |
4120 | else |
4121 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
252b5132 RH |
4122 | } |
4123 | else | |
4124 | { | |
560e09e9 | 4125 | bfd_boolean warned; |
560e09e9 | 4126 | |
b2a8e766 AM |
4127 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
4128 | r_symndx, symtab_hdr, sym_hashes, | |
4129 | h, sec, relocation, | |
4130 | unresolved_reloc, warned); | |
ba93b8ac DJ |
4131 | |
4132 | sym_type = h->type; | |
252b5132 RH |
4133 | } |
4134 | ||
4135 | if (h != NULL) | |
4136 | name = h->root.root.string; | |
4137 | else | |
4138 | { | |
4139 | name = (bfd_elf_string_from_elf_section | |
4140 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
4141 | if (name == NULL || *name == '\0') | |
4142 | name = bfd_section_name (input_bfd, sec); | |
4143 | } | |
f21f3fe0 | 4144 | |
ba93b8ac DJ |
4145 | if (r_symndx != 0 |
4146 | && r_type != R_ARM_NONE | |
4147 | && (h == NULL | |
4148 | || h->root.type == bfd_link_hash_defined | |
4149 | || h->root.type == bfd_link_hash_defweak) | |
4150 | && IS_ARM_TLS_RELOC (r_type) != (sym_type == STT_TLS)) | |
4151 | { | |
4152 | (*_bfd_error_handler) | |
4153 | ((sym_type == STT_TLS | |
4154 | ? _("%B(%A+0x%lx): %s used with TLS symbol %s") | |
4155 | : _("%B(%A+0x%lx): %s used with non-TLS symbol %s")), | |
4156 | input_bfd, | |
4157 | input_section, | |
4158 | (long) rel->r_offset, | |
4159 | howto->name, | |
4160 | name); | |
4161 | } | |
4162 | ||
252b5132 RH |
4163 | r = elf32_arm_final_link_relocate (howto, input_bfd, output_bfd, |
4164 | input_section, contents, rel, | |
4165 | relocation, info, sec, name, | |
4166 | (h ? ELF_ST_TYPE (h->type) : | |
0945cdfd DJ |
4167 | ELF_ST_TYPE (sym->st_info)), h, |
4168 | &unresolved_reloc); | |
4169 | ||
4170 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections | |
4171 | because such sections are not SEC_ALLOC and thus ld.so will | |
4172 | not process them. */ | |
4173 | if (unresolved_reloc | |
4174 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
4175 | && h->def_dynamic)) | |
4176 | { | |
4177 | (*_bfd_error_handler) | |
4178 | (_("%B(%A+0x%lx): warning: unresolvable relocation %d against symbol `%s'"), | |
4179 | input_bfd, input_section, (long) rel->r_offset, | |
4180 | r_type, h->root.root.string); | |
4181 | return FALSE; | |
4182 | } | |
252b5132 RH |
4183 | |
4184 | if (r != bfd_reloc_ok) | |
4185 | { | |
4186 | const char * msg = (const char *) 0; | |
4187 | ||
4188 | switch (r) | |
4189 | { | |
4190 | case bfd_reloc_overflow: | |
cf919dfd PB |
4191 | /* If the overflowing reloc was to an undefined symbol, |
4192 | we have already printed one error message and there | |
4193 | is no point complaining again. */ | |
4194 | if ((! h || | |
4195 | h->root.type != bfd_link_hash_undefined) | |
4196 | && (!((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
4197 | (info, (h ? &h->root : NULL), name, howto->name, |
4198 | (bfd_vma) 0, input_bfd, input_section, | |
4199 | rel->r_offset)))) | |
b34976b6 | 4200 | return FALSE; |
252b5132 RH |
4201 | break; |
4202 | ||
4203 | case bfd_reloc_undefined: | |
4204 | if (!((*info->callbacks->undefined_symbol) | |
4205 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
4206 | rel->r_offset, TRUE))) |
4207 | return FALSE; | |
252b5132 RH |
4208 | break; |
4209 | ||
4210 | case bfd_reloc_outofrange: | |
9b485d32 | 4211 | msg = _("internal error: out of range error"); |
252b5132 RH |
4212 | goto common_error; |
4213 | ||
4214 | case bfd_reloc_notsupported: | |
9b485d32 | 4215 | msg = _("internal error: unsupported relocation error"); |
252b5132 RH |
4216 | goto common_error; |
4217 | ||
4218 | case bfd_reloc_dangerous: | |
9b485d32 | 4219 | msg = _("internal error: dangerous error"); |
252b5132 RH |
4220 | goto common_error; |
4221 | ||
4222 | default: | |
9b485d32 | 4223 | msg = _("internal error: unknown error"); |
252b5132 RH |
4224 | /* fall through */ |
4225 | ||
4226 | common_error: | |
4227 | if (!((*info->callbacks->warning) | |
4228 | (info, msg, name, input_bfd, input_section, | |
4229 | rel->r_offset))) | |
b34976b6 | 4230 | return FALSE; |
252b5132 RH |
4231 | break; |
4232 | } | |
4233 | } | |
4234 | } | |
4235 | ||
b34976b6 | 4236 | return TRUE; |
252b5132 RH |
4237 | } |
4238 | ||
c178919b NC |
4239 | /* Set the right machine number. */ |
4240 | ||
4241 | static bfd_boolean | |
57e8b36a | 4242 | elf32_arm_object_p (bfd *abfd) |
c178919b | 4243 | { |
5a6c6817 | 4244 | unsigned int mach; |
57e8b36a | 4245 | |
5a6c6817 | 4246 | mach = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION); |
c178919b | 4247 | |
5a6c6817 NC |
4248 | if (mach != bfd_mach_arm_unknown) |
4249 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach); | |
4250 | ||
4251 | else if (elf_elfheader (abfd)->e_flags & EF_ARM_MAVERICK_FLOAT) | |
4252 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_ep9312); | |
e16bb312 | 4253 | |
e16bb312 | 4254 | else |
5a6c6817 | 4255 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach); |
c178919b NC |
4256 | |
4257 | return TRUE; | |
4258 | } | |
4259 | ||
fc830a83 | 4260 | /* Function to keep ARM specific flags in the ELF header. */ |
3c9458e9 | 4261 | |
b34976b6 | 4262 | static bfd_boolean |
57e8b36a | 4263 | elf32_arm_set_private_flags (bfd *abfd, flagword flags) |
252b5132 RH |
4264 | { |
4265 | if (elf_flags_init (abfd) | |
4266 | && elf_elfheader (abfd)->e_flags != flags) | |
4267 | { | |
fc830a83 NC |
4268 | if (EF_ARM_EABI_VERSION (flags) == EF_ARM_EABI_UNKNOWN) |
4269 | { | |
fd2ec330 | 4270 | if (flags & EF_ARM_INTERWORK) |
d003868e AM |
4271 | (*_bfd_error_handler) |
4272 | (_("Warning: Not setting interworking flag of %B since it has already been specified as non-interworking"), | |
4273 | abfd); | |
fc830a83 | 4274 | else |
d003868e AM |
4275 | _bfd_error_handler |
4276 | (_("Warning: Clearing the interworking flag of %B due to outside request"), | |
4277 | abfd); | |
fc830a83 | 4278 | } |
252b5132 RH |
4279 | } |
4280 | else | |
4281 | { | |
4282 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 | 4283 | elf_flags_init (abfd) = TRUE; |
252b5132 RH |
4284 | } |
4285 | ||
b34976b6 | 4286 | return TRUE; |
252b5132 RH |
4287 | } |
4288 | ||
fc830a83 | 4289 | /* Copy backend specific data from one object module to another. */ |
9b485d32 | 4290 | |
b34976b6 | 4291 | static bfd_boolean |
57e8b36a | 4292 | elf32_arm_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 RH |
4293 | { |
4294 | flagword in_flags; | |
4295 | flagword out_flags; | |
4296 | ||
fc830a83 | 4297 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
252b5132 | 4298 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 4299 | return TRUE; |
252b5132 | 4300 | |
fc830a83 | 4301 | in_flags = elf_elfheader (ibfd)->e_flags; |
252b5132 RH |
4302 | out_flags = elf_elfheader (obfd)->e_flags; |
4303 | ||
fc830a83 NC |
4304 | if (elf_flags_init (obfd) |
4305 | && EF_ARM_EABI_VERSION (out_flags) == EF_ARM_EABI_UNKNOWN | |
4306 | && in_flags != out_flags) | |
252b5132 | 4307 | { |
252b5132 | 4308 | /* Cannot mix APCS26 and APCS32 code. */ |
fd2ec330 | 4309 | if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26)) |
b34976b6 | 4310 | return FALSE; |
252b5132 RH |
4311 | |
4312 | /* Cannot mix float APCS and non-float APCS code. */ | |
fd2ec330 | 4313 | if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT)) |
b34976b6 | 4314 | return FALSE; |
252b5132 RH |
4315 | |
4316 | /* If the src and dest have different interworking flags | |
4317 | then turn off the interworking bit. */ | |
fd2ec330 | 4318 | if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK)) |
252b5132 | 4319 | { |
fd2ec330 | 4320 | if (out_flags & EF_ARM_INTERWORK) |
d003868e AM |
4321 | _bfd_error_handler |
4322 | (_("Warning: Clearing the interworking flag of %B because non-interworking code in %B has been linked with it"), | |
4323 | obfd, ibfd); | |
252b5132 | 4324 | |
fd2ec330 | 4325 | in_flags &= ~EF_ARM_INTERWORK; |
252b5132 | 4326 | } |
1006ba19 PB |
4327 | |
4328 | /* Likewise for PIC, though don't warn for this case. */ | |
fd2ec330 PB |
4329 | if ((in_flags & EF_ARM_PIC) != (out_flags & EF_ARM_PIC)) |
4330 | in_flags &= ~EF_ARM_PIC; | |
252b5132 RH |
4331 | } |
4332 | ||
4333 | elf_elfheader (obfd)->e_flags = in_flags; | |
b34976b6 | 4334 | elf_flags_init (obfd) = TRUE; |
252b5132 | 4335 | |
94a3258f PB |
4336 | /* Also copy the EI_OSABI field. */ |
4337 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
4338 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
4339 | ||
b34976b6 | 4340 | return TRUE; |
252b5132 RH |
4341 | } |
4342 | ||
4343 | /* Merge backend specific data from an object file to the output | |
4344 | object file when linking. */ | |
9b485d32 | 4345 | |
b34976b6 | 4346 | static bfd_boolean |
57e8b36a | 4347 | elf32_arm_merge_private_bfd_data (bfd * ibfd, bfd * obfd) |
252b5132 RH |
4348 | { |
4349 | flagword out_flags; | |
4350 | flagword in_flags; | |
b34976b6 | 4351 | bfd_boolean flags_compatible = TRUE; |
cf919dfd | 4352 | asection *sec; |
252b5132 | 4353 | |
9b485d32 | 4354 | /* Check if we have the same endianess. */ |
82e51918 | 4355 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
b34976b6 | 4356 | return FALSE; |
1fe494a5 | 4357 | |
252b5132 RH |
4358 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
4359 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 4360 | return TRUE; |
252b5132 | 4361 | |
252b5132 RH |
4362 | /* The input BFD must have had its flags initialised. */ |
4363 | /* The following seems bogus to me -- The flags are initialized in | |
4364 | the assembler but I don't think an elf_flags_init field is | |
9b485d32 | 4365 | written into the object. */ |
252b5132 RH |
4366 | /* BFD_ASSERT (elf_flags_init (ibfd)); */ |
4367 | ||
4368 | in_flags = elf_elfheader (ibfd)->e_flags; | |
4369 | out_flags = elf_elfheader (obfd)->e_flags; | |
4370 | ||
4371 | if (!elf_flags_init (obfd)) | |
4372 | { | |
fe077fa6 NC |
4373 | /* If the input is the default architecture and had the default |
4374 | flags then do not bother setting the flags for the output | |
4375 | architecture, instead allow future merges to do this. If no | |
4376 | future merges ever set these flags then they will retain their | |
4377 | uninitialised values, which surprise surprise, correspond | |
252b5132 | 4378 | to the default values. */ |
fe077fa6 NC |
4379 | if (bfd_get_arch_info (ibfd)->the_default |
4380 | && elf_elfheader (ibfd)->e_flags == 0) | |
b34976b6 | 4381 | return TRUE; |
252b5132 | 4382 | |
b34976b6 | 4383 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
4384 | elf_elfheader (obfd)->e_flags = in_flags; |
4385 | ||
4386 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
4387 | && bfd_get_arch_info (obfd)->the_default) | |
4388 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); | |
4389 | ||
b34976b6 | 4390 | return TRUE; |
252b5132 RH |
4391 | } |
4392 | ||
5a6c6817 NC |
4393 | /* Determine what should happen if the input ARM architecture |
4394 | does not match the output ARM architecture. */ | |
4395 | if (! bfd_arm_merge_machines (ibfd, obfd)) | |
4396 | return FALSE; | |
e16bb312 | 4397 | |
1006ba19 | 4398 | /* Identical flags must be compatible. */ |
252b5132 | 4399 | if (in_flags == out_flags) |
b34976b6 | 4400 | return TRUE; |
252b5132 | 4401 | |
35a0f415 DJ |
4402 | /* Check to see if the input BFD actually contains any sections. If |
4403 | not, its flags may not have been initialised either, but it | |
8e3de13a | 4404 | cannot actually cause any incompatiblity. Do not short-circuit |
35a0f415 | 4405 | dynamic objects; their section list may be emptied by |
d1f161ea | 4406 | elf_link_add_object_symbols. |
35a0f415 | 4407 | |
d1f161ea NC |
4408 | Also check to see if there are no code sections in the input. |
4409 | In this case there is no need to check for code specific flags. | |
4410 | XXX - do we need to worry about floating-point format compatability | |
4411 | in data sections ? */ | |
35a0f415 | 4412 | if (!(ibfd->flags & DYNAMIC)) |
cf919dfd | 4413 | { |
35a0f415 | 4414 | bfd_boolean null_input_bfd = TRUE; |
d1f161ea | 4415 | bfd_boolean only_data_sections = TRUE; |
35a0f415 DJ |
4416 | |
4417 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
cf919dfd | 4418 | { |
35a0f415 DJ |
4419 | /* Ignore synthetic glue sections. */ |
4420 | if (strcmp (sec->name, ".glue_7") | |
4421 | && strcmp (sec->name, ".glue_7t")) | |
4422 | { | |
d1f161ea NC |
4423 | if ((bfd_get_section_flags (ibfd, sec) |
4424 | & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
4425 | == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
4426 | only_data_sections = FALSE; | |
4427 | ||
35a0f415 DJ |
4428 | null_input_bfd = FALSE; |
4429 | break; | |
4430 | } | |
cf919dfd | 4431 | } |
d1f161ea NC |
4432 | |
4433 | if (null_input_bfd || only_data_sections) | |
35a0f415 | 4434 | return TRUE; |
cf919dfd | 4435 | } |
cf919dfd | 4436 | |
252b5132 | 4437 | /* Complain about various flag mismatches. */ |
fc830a83 NC |
4438 | if (EF_ARM_EABI_VERSION (in_flags) != EF_ARM_EABI_VERSION (out_flags)) |
4439 | { | |
d003868e | 4440 | _bfd_error_handler |
3656d5e3 | 4441 | (_("ERROR: Source object %B has EABI version %d, but target %B has EABI version %d"), |
d003868e AM |
4442 | ibfd, obfd, |
4443 | (in_flags & EF_ARM_EABIMASK) >> 24, | |
4444 | (out_flags & EF_ARM_EABIMASK) >> 24); | |
b34976b6 | 4445 | return FALSE; |
fc830a83 | 4446 | } |
252b5132 | 4447 | |
1006ba19 PB |
4448 | /* Not sure what needs to be checked for EABI versions >= 1. */ |
4449 | if (EF_ARM_EABI_VERSION (in_flags) == EF_ARM_EABI_UNKNOWN) | |
4450 | { | |
fd2ec330 | 4451 | if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26)) |
1006ba19 | 4452 | { |
d003868e AM |
4453 | _bfd_error_handler |
4454 | (_("ERROR: %B is compiled for APCS-%d, whereas target %B uses APCS-%d"), | |
4455 | ibfd, obfd, | |
4456 | in_flags & EF_ARM_APCS_26 ? 26 : 32, | |
4457 | out_flags & EF_ARM_APCS_26 ? 26 : 32); | |
b34976b6 | 4458 | flags_compatible = FALSE; |
1006ba19 | 4459 | } |
252b5132 | 4460 | |
fd2ec330 | 4461 | if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT)) |
1006ba19 | 4462 | { |
5eefb65f | 4463 | if (in_flags & EF_ARM_APCS_FLOAT) |
d003868e AM |
4464 | _bfd_error_handler |
4465 | (_("ERROR: %B passes floats in float registers, whereas %B passes them in integer registers"), | |
4466 | ibfd, obfd); | |
5eefb65f | 4467 | else |
d003868e AM |
4468 | _bfd_error_handler |
4469 | (_("ERROR: %B passes floats in integer registers, whereas %B passes them in float registers"), | |
4470 | ibfd, obfd); | |
63b0f745 | 4471 | |
b34976b6 | 4472 | flags_compatible = FALSE; |
1006ba19 | 4473 | } |
252b5132 | 4474 | |
96a846ea | 4475 | if ((in_flags & EF_ARM_VFP_FLOAT) != (out_flags & EF_ARM_VFP_FLOAT)) |
1006ba19 | 4476 | { |
96a846ea | 4477 | if (in_flags & EF_ARM_VFP_FLOAT) |
d003868e AM |
4478 | _bfd_error_handler |
4479 | (_("ERROR: %B uses VFP instructions, whereas %B does not"), | |
4480 | ibfd, obfd); | |
5eefb65f | 4481 | else |
d003868e AM |
4482 | _bfd_error_handler |
4483 | (_("ERROR: %B uses FPA instructions, whereas %B does not"), | |
4484 | ibfd, obfd); | |
fde78edd NC |
4485 | |
4486 | flags_compatible = FALSE; | |
4487 | } | |
4488 | ||
4489 | if ((in_flags & EF_ARM_MAVERICK_FLOAT) != (out_flags & EF_ARM_MAVERICK_FLOAT)) | |
4490 | { | |
4491 | if (in_flags & EF_ARM_MAVERICK_FLOAT) | |
d003868e AM |
4492 | _bfd_error_handler |
4493 | (_("ERROR: %B uses Maverick instructions, whereas %B does not"), | |
4494 | ibfd, obfd); | |
fde78edd | 4495 | else |
d003868e AM |
4496 | _bfd_error_handler |
4497 | (_("ERROR: %B does not use Maverick instructions, whereas %B does"), | |
4498 | ibfd, obfd); | |
63b0f745 | 4499 | |
b34976b6 | 4500 | flags_compatible = FALSE; |
1006ba19 | 4501 | } |
96a846ea RE |
4502 | |
4503 | #ifdef EF_ARM_SOFT_FLOAT | |
4504 | if ((in_flags & EF_ARM_SOFT_FLOAT) != (out_flags & EF_ARM_SOFT_FLOAT)) | |
4505 | { | |
4506 | /* We can allow interworking between code that is VFP format | |
4507 | layout, and uses either soft float or integer regs for | |
4508 | passing floating point arguments and results. We already | |
4509 | know that the APCS_FLOAT flags match; similarly for VFP | |
4510 | flags. */ | |
4511 | if ((in_flags & EF_ARM_APCS_FLOAT) != 0 | |
4512 | || (in_flags & EF_ARM_VFP_FLOAT) == 0) | |
4513 | { | |
4514 | if (in_flags & EF_ARM_SOFT_FLOAT) | |
d003868e AM |
4515 | _bfd_error_handler |
4516 | (_("ERROR: %B uses software FP, whereas %B uses hardware FP"), | |
4517 | ibfd, obfd); | |
96a846ea | 4518 | else |
d003868e AM |
4519 | _bfd_error_handler |
4520 | (_("ERROR: %B uses hardware FP, whereas %B uses software FP"), | |
4521 | ibfd, obfd); | |
96a846ea | 4522 | |
b34976b6 | 4523 | flags_compatible = FALSE; |
96a846ea RE |
4524 | } |
4525 | } | |
ee43f35e | 4526 | #endif |
252b5132 | 4527 | |
1006ba19 | 4528 | /* Interworking mismatch is only a warning. */ |
fd2ec330 | 4529 | if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK)) |
8f615d07 | 4530 | { |
e3c8793a NC |
4531 | if (in_flags & EF_ARM_INTERWORK) |
4532 | { | |
d003868e AM |
4533 | _bfd_error_handler |
4534 | (_("Warning: %B supports interworking, whereas %B does not"), | |
4535 | ibfd, obfd); | |
e3c8793a NC |
4536 | } |
4537 | else | |
4538 | { | |
d003868e AM |
4539 | _bfd_error_handler |
4540 | (_("Warning: %B does not support interworking, whereas %B does"), | |
4541 | ibfd, obfd); | |
e3c8793a | 4542 | } |
8f615d07 | 4543 | } |
252b5132 | 4544 | } |
63b0f745 | 4545 | |
1006ba19 | 4546 | return flags_compatible; |
252b5132 RH |
4547 | } |
4548 | ||
9b485d32 NC |
4549 | /* Display the flags field. */ |
4550 | ||
b34976b6 | 4551 | static bfd_boolean |
57e8b36a | 4552 | elf32_arm_print_private_bfd_data (bfd *abfd, void * ptr) |
252b5132 | 4553 | { |
fc830a83 NC |
4554 | FILE * file = (FILE *) ptr; |
4555 | unsigned long flags; | |
252b5132 RH |
4556 | |
4557 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
4558 | ||
4559 | /* Print normal ELF private data. */ | |
4560 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
4561 | ||
fc830a83 | 4562 | flags = elf_elfheader (abfd)->e_flags; |
9b485d32 NC |
4563 | /* Ignore init flag - it may not be set, despite the flags field |
4564 | containing valid data. */ | |
252b5132 RH |
4565 | |
4566 | /* xgettext:c-format */ | |
9b485d32 | 4567 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); |
252b5132 | 4568 | |
fc830a83 NC |
4569 | switch (EF_ARM_EABI_VERSION (flags)) |
4570 | { | |
4571 | case EF_ARM_EABI_UNKNOWN: | |
4cc11e76 | 4572 | /* The following flag bits are GNU extensions and not part of the |
fc830a83 NC |
4573 | official ARM ELF extended ABI. Hence they are only decoded if |
4574 | the EABI version is not set. */ | |
fd2ec330 | 4575 | if (flags & EF_ARM_INTERWORK) |
9b485d32 | 4576 | fprintf (file, _(" [interworking enabled]")); |
9a5aca8c | 4577 | |
fd2ec330 | 4578 | if (flags & EF_ARM_APCS_26) |
6c571f00 | 4579 | fprintf (file, " [APCS-26]"); |
fc830a83 | 4580 | else |
6c571f00 | 4581 | fprintf (file, " [APCS-32]"); |
9a5aca8c | 4582 | |
96a846ea RE |
4583 | if (flags & EF_ARM_VFP_FLOAT) |
4584 | fprintf (file, _(" [VFP float format]")); | |
fde78edd NC |
4585 | else if (flags & EF_ARM_MAVERICK_FLOAT) |
4586 | fprintf (file, _(" [Maverick float format]")); | |
96a846ea RE |
4587 | else |
4588 | fprintf (file, _(" [FPA float format]")); | |
4589 | ||
fd2ec330 | 4590 | if (flags & EF_ARM_APCS_FLOAT) |
9b485d32 | 4591 | fprintf (file, _(" [floats passed in float registers]")); |
9a5aca8c | 4592 | |
fd2ec330 | 4593 | if (flags & EF_ARM_PIC) |
9b485d32 | 4594 | fprintf (file, _(" [position independent]")); |
fc830a83 | 4595 | |
fd2ec330 | 4596 | if (flags & EF_ARM_NEW_ABI) |
9b485d32 | 4597 | fprintf (file, _(" [new ABI]")); |
9a5aca8c | 4598 | |
fd2ec330 | 4599 | if (flags & EF_ARM_OLD_ABI) |
9b485d32 | 4600 | fprintf (file, _(" [old ABI]")); |
9a5aca8c | 4601 | |
fd2ec330 | 4602 | if (flags & EF_ARM_SOFT_FLOAT) |
9b485d32 | 4603 | fprintf (file, _(" [software FP]")); |
9a5aca8c | 4604 | |
96a846ea RE |
4605 | flags &= ~(EF_ARM_INTERWORK | EF_ARM_APCS_26 | EF_ARM_APCS_FLOAT |
4606 | | EF_ARM_PIC | EF_ARM_NEW_ABI | EF_ARM_OLD_ABI | |
fde78edd NC |
4607 | | EF_ARM_SOFT_FLOAT | EF_ARM_VFP_FLOAT |
4608 | | EF_ARM_MAVERICK_FLOAT); | |
fc830a83 | 4609 | break; |
9a5aca8c | 4610 | |
fc830a83 | 4611 | case EF_ARM_EABI_VER1: |
9b485d32 | 4612 | fprintf (file, _(" [Version1 EABI]")); |
9a5aca8c | 4613 | |
fc830a83 | 4614 | if (flags & EF_ARM_SYMSARESORTED) |
9b485d32 | 4615 | fprintf (file, _(" [sorted symbol table]")); |
fc830a83 | 4616 | else |
9b485d32 | 4617 | fprintf (file, _(" [unsorted symbol table]")); |
9a5aca8c | 4618 | |
fc830a83 NC |
4619 | flags &= ~ EF_ARM_SYMSARESORTED; |
4620 | break; | |
9a5aca8c | 4621 | |
fd2ec330 PB |
4622 | case EF_ARM_EABI_VER2: |
4623 | fprintf (file, _(" [Version2 EABI]")); | |
4624 | ||
4625 | if (flags & EF_ARM_SYMSARESORTED) | |
4626 | fprintf (file, _(" [sorted symbol table]")); | |
4627 | else | |
4628 | fprintf (file, _(" [unsorted symbol table]")); | |
4629 | ||
4630 | if (flags & EF_ARM_DYNSYMSUSESEGIDX) | |
4631 | fprintf (file, _(" [dynamic symbols use segment index]")); | |
4632 | ||
4633 | if (flags & EF_ARM_MAPSYMSFIRST) | |
4634 | fprintf (file, _(" [mapping symbols precede others]")); | |
4635 | ||
99e4ae17 | 4636 | flags &= ~(EF_ARM_SYMSARESORTED | EF_ARM_DYNSYMSUSESEGIDX |
fd2ec330 PB |
4637 | | EF_ARM_MAPSYMSFIRST); |
4638 | break; | |
4639 | ||
d507cf36 PB |
4640 | case EF_ARM_EABI_VER3: |
4641 | fprintf (file, _(" [Version3 EABI]")); | |
8cb51566 PB |
4642 | break; |
4643 | ||
4644 | case EF_ARM_EABI_VER4: | |
4645 | fprintf (file, _(" [Version4 EABI]")); | |
d507cf36 PB |
4646 | |
4647 | if (flags & EF_ARM_BE8) | |
4648 | fprintf (file, _(" [BE8]")); | |
4649 | ||
4650 | if (flags & EF_ARM_LE8) | |
4651 | fprintf (file, _(" [LE8]")); | |
4652 | ||
4653 | flags &= ~(EF_ARM_LE8 | EF_ARM_BE8); | |
4654 | break; | |
4655 | ||
fc830a83 | 4656 | default: |
9b485d32 | 4657 | fprintf (file, _(" <EABI version unrecognised>")); |
fc830a83 NC |
4658 | break; |
4659 | } | |
252b5132 | 4660 | |
fc830a83 | 4661 | flags &= ~ EF_ARM_EABIMASK; |
252b5132 | 4662 | |
fc830a83 | 4663 | if (flags & EF_ARM_RELEXEC) |
9b485d32 | 4664 | fprintf (file, _(" [relocatable executable]")); |
252b5132 | 4665 | |
fc830a83 | 4666 | if (flags & EF_ARM_HASENTRY) |
9b485d32 | 4667 | fprintf (file, _(" [has entry point]")); |
252b5132 | 4668 | |
fc830a83 NC |
4669 | flags &= ~ (EF_ARM_RELEXEC | EF_ARM_HASENTRY); |
4670 | ||
4671 | if (flags) | |
9b485d32 | 4672 | fprintf (file, _("<Unrecognised flag bits set>")); |
9a5aca8c | 4673 | |
252b5132 RH |
4674 | fputc ('\n', file); |
4675 | ||
b34976b6 | 4676 | return TRUE; |
252b5132 RH |
4677 | } |
4678 | ||
4679 | static int | |
57e8b36a | 4680 | elf32_arm_get_symbol_type (Elf_Internal_Sym * elf_sym, int type) |
252b5132 | 4681 | { |
2f0ca46a NC |
4682 | switch (ELF_ST_TYPE (elf_sym->st_info)) |
4683 | { | |
4684 | case STT_ARM_TFUNC: | |
4685 | return ELF_ST_TYPE (elf_sym->st_info); | |
ce855c42 | 4686 | |
2f0ca46a NC |
4687 | case STT_ARM_16BIT: |
4688 | /* If the symbol is not an object, return the STT_ARM_16BIT flag. | |
4689 | This allows us to distinguish between data used by Thumb instructions | |
4690 | and non-data (which is probably code) inside Thumb regions of an | |
4691 | executable. */ | |
4692 | if (type != STT_OBJECT) | |
4693 | return ELF_ST_TYPE (elf_sym->st_info); | |
4694 | break; | |
9a5aca8c | 4695 | |
ce855c42 NC |
4696 | default: |
4697 | break; | |
2f0ca46a NC |
4698 | } |
4699 | ||
4700 | return type; | |
252b5132 | 4701 | } |
f21f3fe0 | 4702 | |
252b5132 | 4703 | static asection * |
57e8b36a NC |
4704 | elf32_arm_gc_mark_hook (asection * sec, |
4705 | struct bfd_link_info * info ATTRIBUTE_UNUSED, | |
4706 | Elf_Internal_Rela * rel, | |
4707 | struct elf_link_hash_entry * h, | |
4708 | Elf_Internal_Sym * sym) | |
252b5132 RH |
4709 | { |
4710 | if (h != NULL) | |
4711 | { | |
4712 | switch (ELF32_R_TYPE (rel->r_info)) | |
4713 | { | |
4714 | case R_ARM_GNU_VTINHERIT: | |
4715 | case R_ARM_GNU_VTENTRY: | |
4716 | break; | |
4717 | ||
4718 | default: | |
4719 | switch (h->root.type) | |
4720 | { | |
4721 | case bfd_link_hash_defined: | |
4722 | case bfd_link_hash_defweak: | |
4723 | return h->root.u.def.section; | |
4724 | ||
4725 | case bfd_link_hash_common: | |
4726 | return h->root.u.c.p->section; | |
e049a0de ILT |
4727 | |
4728 | default: | |
4729 | break; | |
252b5132 RH |
4730 | } |
4731 | } | |
4732 | } | |
4733 | else | |
1e2f5b6e | 4734 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
9ad5cbcf | 4735 | |
252b5132 RH |
4736 | return NULL; |
4737 | } | |
4738 | ||
780a67af NC |
4739 | /* Update the got entry reference counts for the section being removed. */ |
4740 | ||
b34976b6 | 4741 | static bfd_boolean |
ba93b8ac DJ |
4742 | elf32_arm_gc_sweep_hook (bfd * abfd, |
4743 | struct bfd_link_info * info, | |
4744 | asection * sec, | |
4745 | const Elf_Internal_Rela * relocs) | |
252b5132 | 4746 | { |
5e681ec4 PB |
4747 | Elf_Internal_Shdr *symtab_hdr; |
4748 | struct elf_link_hash_entry **sym_hashes; | |
4749 | bfd_signed_vma *local_got_refcounts; | |
4750 | const Elf_Internal_Rela *rel, *relend; | |
eb043451 PB |
4751 | struct elf32_arm_link_hash_table * globals; |
4752 | ||
4753 | globals = elf32_arm_hash_table (info); | |
5e681ec4 PB |
4754 | |
4755 | elf_section_data (sec)->local_dynrel = NULL; | |
4756 | ||
4757 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
4758 | sym_hashes = elf_sym_hashes (abfd); | |
4759 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
4760 | ||
4761 | relend = relocs + sec->reloc_count; | |
4762 | for (rel = relocs; rel < relend; rel++) | |
eb043451 | 4763 | { |
3eb128b2 AM |
4764 | unsigned long r_symndx; |
4765 | struct elf_link_hash_entry *h = NULL; | |
eb043451 | 4766 | int r_type; |
5e681ec4 | 4767 | |
3eb128b2 AM |
4768 | r_symndx = ELF32_R_SYM (rel->r_info); |
4769 | if (r_symndx >= symtab_hdr->sh_info) | |
4770 | { | |
4771 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4772 | while (h->root.type == bfd_link_hash_indirect | |
4773 | || h->root.type == bfd_link_hash_warning) | |
4774 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4775 | } | |
4776 | ||
eb043451 | 4777 | r_type = ELF32_R_TYPE (rel->r_info); |
eb043451 | 4778 | r_type = arm_real_reloc_type (globals, r_type); |
eb043451 PB |
4779 | switch (r_type) |
4780 | { | |
4781 | case R_ARM_GOT32: | |
eb043451 | 4782 | case R_ARM_GOT_PREL: |
ba93b8ac DJ |
4783 | case R_ARM_TLS_GD32: |
4784 | case R_ARM_TLS_IE32: | |
3eb128b2 | 4785 | if (h != NULL) |
eb043451 | 4786 | { |
eb043451 PB |
4787 | if (h->got.refcount > 0) |
4788 | h->got.refcount -= 1; | |
4789 | } | |
4790 | else if (local_got_refcounts != NULL) | |
4791 | { | |
4792 | if (local_got_refcounts[r_symndx] > 0) | |
4793 | local_got_refcounts[r_symndx] -= 1; | |
4794 | } | |
4795 | break; | |
4796 | ||
ba93b8ac DJ |
4797 | case R_ARM_TLS_LDM32: |
4798 | elf32_arm_hash_table (info)->tls_ldm_got.refcount -= 1; | |
4799 | break; | |
4800 | ||
eb043451 PB |
4801 | case R_ARM_ABS32: |
4802 | case R_ARM_REL32: | |
4803 | case R_ARM_PC24: | |
4804 | case R_ARM_PLT32: | |
5b5bb741 PB |
4805 | case R_ARM_CALL: |
4806 | case R_ARM_JUMP24: | |
eb043451 | 4807 | case R_ARM_PREL31: |
c19d1205 | 4808 | case R_ARM_THM_CALL: |
b7693d02 DJ |
4809 | /* Should the interworking branches be here also? */ |
4810 | ||
3eb128b2 | 4811 | if (h != NULL) |
eb043451 PB |
4812 | { |
4813 | struct elf32_arm_link_hash_entry *eh; | |
4814 | struct elf32_arm_relocs_copied **pp; | |
4815 | struct elf32_arm_relocs_copied *p; | |
5e681ec4 | 4816 | |
b7693d02 | 4817 | eh = (struct elf32_arm_link_hash_entry *) h; |
5e681ec4 | 4818 | |
eb043451 | 4819 | if (h->plt.refcount > 0) |
b7693d02 DJ |
4820 | { |
4821 | h->plt.refcount -= 1; | |
c19d1205 | 4822 | if (ELF32_R_TYPE (rel->r_info) == R_ARM_THM_CALL) |
b7693d02 DJ |
4823 | eh->plt_thumb_refcount--; |
4824 | } | |
5e681ec4 | 4825 | |
eb043451 | 4826 | if (r_type == R_ARM_ABS32 |
eb043451 PB |
4827 | || r_type == R_ARM_REL32) |
4828 | { | |
eb043451 PB |
4829 | for (pp = &eh->relocs_copied; (p = *pp) != NULL; |
4830 | pp = &p->next) | |
4831 | if (p->section == sec) | |
4832 | { | |
4833 | p->count -= 1; | |
ba93b8ac DJ |
4834 | if (ELF32_R_TYPE (rel->r_info) == R_ARM_REL32) |
4835 | p->pc_count -= 1; | |
eb043451 PB |
4836 | if (p->count == 0) |
4837 | *pp = p->next; | |
4838 | break; | |
4839 | } | |
4840 | } | |
4841 | } | |
4842 | break; | |
5e681ec4 | 4843 | |
eb043451 PB |
4844 | default: |
4845 | break; | |
4846 | } | |
4847 | } | |
5e681ec4 | 4848 | |
b34976b6 | 4849 | return TRUE; |
252b5132 RH |
4850 | } |
4851 | ||
780a67af NC |
4852 | /* Look through the relocs for a section during the first phase. */ |
4853 | ||
b34976b6 | 4854 | static bfd_boolean |
57e8b36a NC |
4855 | elf32_arm_check_relocs (bfd *abfd, struct bfd_link_info *info, |
4856 | asection *sec, const Elf_Internal_Rela *relocs) | |
252b5132 | 4857 | { |
b34976b6 AM |
4858 | Elf_Internal_Shdr *symtab_hdr; |
4859 | struct elf_link_hash_entry **sym_hashes; | |
4860 | struct elf_link_hash_entry **sym_hashes_end; | |
4861 | const Elf_Internal_Rela *rel; | |
4862 | const Elf_Internal_Rela *rel_end; | |
4863 | bfd *dynobj; | |
5e681ec4 | 4864 | asection *sreloc; |
b34976b6 | 4865 | bfd_vma *local_got_offsets; |
5e681ec4 | 4866 | struct elf32_arm_link_hash_table *htab; |
9a5aca8c | 4867 | |
1049f94e | 4868 | if (info->relocatable) |
b34976b6 | 4869 | return TRUE; |
9a5aca8c | 4870 | |
5e681ec4 PB |
4871 | htab = elf32_arm_hash_table (info); |
4872 | sreloc = NULL; | |
9a5aca8c | 4873 | |
67687978 PB |
4874 | /* Create dynamic sections for relocatable executables so that we can |
4875 | copy relocations. */ | |
4876 | if (htab->root.is_relocatable_executable | |
4877 | && ! htab->root.dynamic_sections_created) | |
4878 | { | |
4879 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) | |
4880 | return FALSE; | |
4881 | } | |
4882 | ||
252b5132 RH |
4883 | dynobj = elf_hash_table (info)->dynobj; |
4884 | local_got_offsets = elf_local_got_offsets (abfd); | |
f21f3fe0 | 4885 | |
252b5132 RH |
4886 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4887 | sym_hashes = elf_sym_hashes (abfd); | |
9b485d32 NC |
4888 | sym_hashes_end = sym_hashes |
4889 | + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
4890 | ||
252b5132 RH |
4891 | if (!elf_bad_symtab (abfd)) |
4892 | sym_hashes_end -= symtab_hdr->sh_info; | |
9b485d32 | 4893 | |
252b5132 RH |
4894 | rel_end = relocs + sec->reloc_count; |
4895 | for (rel = relocs; rel < rel_end; rel++) | |
4896 | { | |
4897 | struct elf_link_hash_entry *h; | |
b7693d02 | 4898 | struct elf32_arm_link_hash_entry *eh; |
252b5132 | 4899 | unsigned long r_symndx; |
eb043451 | 4900 | int r_type; |
9a5aca8c | 4901 | |
252b5132 | 4902 | r_symndx = ELF32_R_SYM (rel->r_info); |
eb043451 | 4903 | r_type = ELF32_R_TYPE (rel->r_info); |
eb043451 | 4904 | r_type = arm_real_reloc_type (htab, r_type); |
ba93b8ac DJ |
4905 | |
4906 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
4907 | { | |
4908 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), abfd, | |
4909 | r_symndx); | |
4910 | return FALSE; | |
4911 | } | |
4912 | ||
252b5132 RH |
4913 | if (r_symndx < symtab_hdr->sh_info) |
4914 | h = NULL; | |
4915 | else | |
973a3492 L |
4916 | { |
4917 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4918 | while (h->root.type == bfd_link_hash_indirect | |
4919 | || h->root.type == bfd_link_hash_warning) | |
4920 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4921 | } | |
9a5aca8c | 4922 | |
b7693d02 DJ |
4923 | eh = (struct elf32_arm_link_hash_entry *) h; |
4924 | ||
eb043451 | 4925 | switch (r_type) |
252b5132 | 4926 | { |
5e681ec4 | 4927 | case R_ARM_GOT32: |
eb043451 | 4928 | case R_ARM_GOT_PREL: |
ba93b8ac DJ |
4929 | case R_ARM_TLS_GD32: |
4930 | case R_ARM_TLS_IE32: | |
5e681ec4 | 4931 | /* This symbol requires a global offset table entry. */ |
ba93b8ac DJ |
4932 | { |
4933 | int tls_type, old_tls_type; | |
5e681ec4 | 4934 | |
ba93b8ac DJ |
4935 | switch (r_type) |
4936 | { | |
4937 | case R_ARM_TLS_GD32: tls_type = GOT_TLS_GD; break; | |
4938 | case R_ARM_TLS_IE32: tls_type = GOT_TLS_IE; break; | |
4939 | default: tls_type = GOT_NORMAL; break; | |
4940 | } | |
252b5132 | 4941 | |
ba93b8ac DJ |
4942 | if (h != NULL) |
4943 | { | |
4944 | h->got.refcount++; | |
4945 | old_tls_type = elf32_arm_hash_entry (h)->tls_type; | |
4946 | } | |
4947 | else | |
4948 | { | |
4949 | bfd_signed_vma *local_got_refcounts; | |
4950 | ||
4951 | /* This is a global offset table entry for a local symbol. */ | |
4952 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
4953 | if (local_got_refcounts == NULL) | |
4954 | { | |
4955 | bfd_size_type size; | |
4956 | ||
4957 | size = symtab_hdr->sh_info; | |
4958 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
4959 | local_got_refcounts = bfd_zalloc (abfd, size); | |
4960 | if (local_got_refcounts == NULL) | |
4961 | return FALSE; | |
4962 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
4963 | elf32_arm_local_got_tls_type (abfd) | |
4964 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
4965 | } | |
4966 | local_got_refcounts[r_symndx] += 1; | |
4967 | old_tls_type = elf32_arm_local_got_tls_type (abfd) [r_symndx]; | |
4968 | } | |
4969 | ||
4970 | /* We will already have issued an error message if there is a | |
4971 | TLS / non-TLS mismatch, based on the symbol type. We don't | |
4972 | support any linker relaxations. So just combine any TLS | |
4973 | types needed. */ | |
4974 | if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL | |
4975 | && tls_type != GOT_NORMAL) | |
4976 | tls_type |= old_tls_type; | |
4977 | ||
4978 | if (old_tls_type != tls_type) | |
4979 | { | |
4980 | if (h != NULL) | |
4981 | elf32_arm_hash_entry (h)->tls_type = tls_type; | |
4982 | else | |
4983 | elf32_arm_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
4984 | } | |
4985 | } | |
4986 | /* Fall through */ | |
4987 | ||
4988 | case R_ARM_TLS_LDM32: | |
4989 | if (r_type == R_ARM_TLS_LDM32) | |
4990 | htab->tls_ldm_got.refcount++; | |
4991 | /* Fall through */ | |
252b5132 | 4992 | |
c19d1205 | 4993 | case R_ARM_GOTOFF32: |
5e681ec4 PB |
4994 | case R_ARM_GOTPC: |
4995 | if (htab->sgot == NULL) | |
4996 | { | |
4997 | if (htab->root.dynobj == NULL) | |
4998 | htab->root.dynobj = abfd; | |
4999 | if (!create_got_section (htab->root.dynobj, info)) | |
5000 | return FALSE; | |
5001 | } | |
252b5132 RH |
5002 | break; |
5003 | ||
5004 | case R_ARM_ABS32: | |
5005 | case R_ARM_REL32: | |
5006 | case R_ARM_PC24: | |
7359ea65 | 5007 | case R_ARM_PLT32: |
5b5bb741 PB |
5008 | case R_ARM_CALL: |
5009 | case R_ARM_JUMP24: | |
eb043451 | 5010 | case R_ARM_PREL31: |
c19d1205 | 5011 | case R_ARM_THM_CALL: |
b7693d02 | 5012 | /* Should the interworking branches be listed here? */ |
7359ea65 | 5013 | if (h != NULL) |
5e681ec4 PB |
5014 | { |
5015 | /* If this reloc is in a read-only section, we might | |
5016 | need a copy reloc. We can't check reliably at this | |
5017 | stage whether the section is read-only, as input | |
5018 | sections have not yet been mapped to output sections. | |
5019 | Tentatively set the flag for now, and correct in | |
5020 | adjust_dynamic_symbol. */ | |
7359ea65 | 5021 | if (!info->shared) |
f5385ebf | 5022 | h->non_got_ref = 1; |
7359ea65 | 5023 | |
5e681ec4 | 5024 | /* We may need a .plt entry if the function this reloc |
c84cd8ee DJ |
5025 | refers to is in a different object. We can't tell for |
5026 | sure yet, because something later might force the | |
5027 | symbol local. */ | |
eb043451 | 5028 | if (r_type == R_ARM_PC24 |
5b5bb741 PB |
5029 | || r_type == R_ARM_CALL |
5030 | || r_type == R_ARM_JUMP24 | |
ee06dc07 | 5031 | || r_type == R_ARM_PREL31 |
b7693d02 | 5032 | || r_type == R_ARM_PLT32 |
c19d1205 | 5033 | || r_type == R_ARM_THM_CALL) |
f5385ebf | 5034 | h->needs_plt = 1; |
4f199be3 DJ |
5035 | |
5036 | /* If we create a PLT entry, this relocation will reference | |
5037 | it, even if it's an ABS32 relocation. */ | |
5038 | h->plt.refcount += 1; | |
b7693d02 | 5039 | |
c19d1205 | 5040 | if (r_type == R_ARM_THM_CALL) |
b7693d02 | 5041 | eh->plt_thumb_refcount += 1; |
5e681ec4 PB |
5042 | } |
5043 | ||
67687978 PB |
5044 | /* If we are creating a shared library or relocatable executable, |
5045 | and this is a reloc against a global symbol, or a non PC | |
5046 | relative reloc against a local symbol, then we need to copy | |
5047 | the reloc into the shared library. However, if we are linking | |
5048 | with -Bsymbolic, we do not need to copy a reloc against a | |
252b5132 RH |
5049 | global symbol which is defined in an object we are |
5050 | including in the link (i.e., DEF_REGULAR is set). At | |
5051 | this point we have not seen all the input files, so it is | |
5052 | possible that DEF_REGULAR is not set now but will be set | |
5053 | later (it is never cleared). We account for that | |
5054 | possibility below by storing information in the | |
5e681ec4 | 5055 | relocs_copied field of the hash table entry. */ |
67687978 | 5056 | if ((info->shared || htab->root.is_relocatable_executable) |
5e681ec4 | 5057 | && (sec->flags & SEC_ALLOC) != 0 |
71a976dd DJ |
5058 | && (r_type == R_ARM_ABS32 |
5059 | || (h != NULL && ! h->needs_plt | |
5060 | && (! info->symbolic || ! h->def_regular)))) | |
252b5132 | 5061 | { |
5e681ec4 PB |
5062 | struct elf32_arm_relocs_copied *p, **head; |
5063 | ||
252b5132 RH |
5064 | /* When creating a shared object, we must copy these |
5065 | reloc types into the output file. We create a reloc | |
5066 | section in dynobj and make room for this reloc. */ | |
5067 | if (sreloc == NULL) | |
5068 | { | |
5069 | const char * name; | |
5070 | ||
5071 | name = (bfd_elf_string_from_elf_section | |
5072 | (abfd, | |
5073 | elf_elfheader (abfd)->e_shstrndx, | |
5074 | elf_section_data (sec)->rel_hdr.sh_name)); | |
5075 | if (name == NULL) | |
b34976b6 | 5076 | return FALSE; |
252b5132 RH |
5077 | |
5078 | BFD_ASSERT (strncmp (name, ".rel", 4) == 0 | |
99e4ae17 | 5079 | && strcmp (bfd_get_section_name (abfd, sec), |
252b5132 RH |
5080 | name + 4) == 0); |
5081 | ||
5082 | sreloc = bfd_get_section_by_name (dynobj, name); | |
5083 | if (sreloc == NULL) | |
5084 | { | |
5085 | flagword flags; | |
5086 | ||
252b5132 RH |
5087 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
5088 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
e5a52504 MM |
5089 | if ((sec->flags & SEC_ALLOC) != 0 |
5090 | /* BPABI objects never have dynamic | |
5091 | relocations mapped. */ | |
5092 | && !htab->symbian_p) | |
252b5132 | 5093 | flags |= SEC_ALLOC | SEC_LOAD; |
3496cb2a L |
5094 | sreloc = bfd_make_section_with_flags (dynobj, |
5095 | name, | |
5096 | flags); | |
252b5132 | 5097 | if (sreloc == NULL |
252b5132 | 5098 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
b34976b6 | 5099 | return FALSE; |
252b5132 | 5100 | } |
5e681ec4 PB |
5101 | |
5102 | elf_section_data (sec)->sreloc = sreloc; | |
252b5132 RH |
5103 | } |
5104 | ||
5e681ec4 PB |
5105 | /* If this is a global symbol, we count the number of |
5106 | relocations we need for this symbol. */ | |
5107 | if (h != NULL) | |
252b5132 | 5108 | { |
5e681ec4 PB |
5109 | head = &((struct elf32_arm_link_hash_entry *) h)->relocs_copied; |
5110 | } | |
5111 | else | |
5112 | { | |
5113 | /* Track dynamic relocs needed for local syms too. | |
5114 | We really need local syms available to do this | |
5115 | easily. Oh well. */ | |
57e8b36a | 5116 | |
5e681ec4 PB |
5117 | asection *s; |
5118 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
5119 | sec, r_symndx); | |
5120 | if (s == NULL) | |
5121 | return FALSE; | |
57e8b36a | 5122 | |
5e681ec4 PB |
5123 | head = ((struct elf32_arm_relocs_copied **) |
5124 | &elf_section_data (s)->local_dynrel); | |
5125 | } | |
57e8b36a | 5126 | |
5e681ec4 PB |
5127 | p = *head; |
5128 | if (p == NULL || p->section != sec) | |
5129 | { | |
5130 | bfd_size_type amt = sizeof *p; | |
57e8b36a | 5131 | |
5e681ec4 | 5132 | p = bfd_alloc (htab->root.dynobj, amt); |
252b5132 | 5133 | if (p == NULL) |
5e681ec4 PB |
5134 | return FALSE; |
5135 | p->next = *head; | |
5136 | *head = p; | |
5137 | p->section = sec; | |
5138 | p->count = 0; | |
ba93b8ac | 5139 | p->pc_count = 0; |
252b5132 | 5140 | } |
57e8b36a | 5141 | |
ba93b8ac DJ |
5142 | if (r_type == R_ARM_REL32) |
5143 | p->pc_count += 1; | |
71a976dd | 5144 | p->count += 1; |
252b5132 RH |
5145 | } |
5146 | break; | |
5147 | ||
5148 | /* This relocation describes the C++ object vtable hierarchy. | |
5149 | Reconstruct it for later use during GC. */ | |
5150 | case R_ARM_GNU_VTINHERIT: | |
c152c796 | 5151 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 5152 | return FALSE; |
252b5132 | 5153 | break; |
9a5aca8c | 5154 | |
252b5132 RH |
5155 | /* This relocation describes which C++ vtable entries are actually |
5156 | used. Record for later use during GC. */ | |
5157 | case R_ARM_GNU_VTENTRY: | |
c152c796 | 5158 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) |
b34976b6 | 5159 | return FALSE; |
252b5132 RH |
5160 | break; |
5161 | } | |
5162 | } | |
f21f3fe0 | 5163 | |
b34976b6 | 5164 | return TRUE; |
252b5132 RH |
5165 | } |
5166 | ||
3c9458e9 NC |
5167 | /* Treat mapping symbols as special target symbols. */ |
5168 | ||
5169 | static bfd_boolean | |
5170 | elf32_arm_is_target_special_symbol (bfd * abfd ATTRIBUTE_UNUSED, asymbol * sym) | |
5171 | { | |
05ea83ed | 5172 | return bfd_is_arm_mapping_symbol_name (sym->name); |
3c9458e9 NC |
5173 | } |
5174 | ||
0367ecfb NC |
5175 | /* This is a copy of elf_find_function() from elf.c except that |
5176 | ARM mapping symbols are ignored when looking for function names | |
5177 | and STT_ARM_TFUNC is considered to a function type. */ | |
252b5132 | 5178 | |
0367ecfb NC |
5179 | static bfd_boolean |
5180 | arm_elf_find_function (bfd * abfd ATTRIBUTE_UNUSED, | |
5181 | asection * section, | |
5182 | asymbol ** symbols, | |
5183 | bfd_vma offset, | |
5184 | const char ** filename_ptr, | |
5185 | const char ** functionname_ptr) | |
5186 | { | |
5187 | const char * filename = NULL; | |
5188 | asymbol * func = NULL; | |
5189 | bfd_vma low_func = 0; | |
5190 | asymbol ** p; | |
252b5132 RH |
5191 | |
5192 | for (p = symbols; *p != NULL; p++) | |
5193 | { | |
5194 | elf_symbol_type *q; | |
5195 | ||
5196 | q = (elf_symbol_type *) *p; | |
5197 | ||
252b5132 RH |
5198 | switch (ELF_ST_TYPE (q->internal_elf_sym.st_info)) |
5199 | { | |
5200 | default: | |
5201 | break; | |
5202 | case STT_FILE: | |
5203 | filename = bfd_asymbol_name (&q->symbol); | |
5204 | break; | |
252b5132 RH |
5205 | case STT_FUNC: |
5206 | case STT_ARM_TFUNC: | |
9d2da7ca | 5207 | case STT_NOTYPE: |
0367ecfb NC |
5208 | /* Skip $a and $t symbols. */ |
5209 | if ((q->symbol.flags & BSF_LOCAL) | |
05ea83ed | 5210 | && bfd_is_arm_mapping_symbol_name (q->symbol.name)) |
0367ecfb NC |
5211 | continue; |
5212 | /* Fall through. */ | |
6b40fcba | 5213 | if (bfd_get_section (&q->symbol) == section |
252b5132 RH |
5214 | && q->symbol.value >= low_func |
5215 | && q->symbol.value <= offset) | |
5216 | { | |
5217 | func = (asymbol *) q; | |
5218 | low_func = q->symbol.value; | |
5219 | } | |
5220 | break; | |
5221 | } | |
5222 | } | |
5223 | ||
5224 | if (func == NULL) | |
b34976b6 | 5225 | return FALSE; |
252b5132 | 5226 | |
0367ecfb NC |
5227 | if (filename_ptr) |
5228 | *filename_ptr = filename; | |
5229 | if (functionname_ptr) | |
5230 | *functionname_ptr = bfd_asymbol_name (func); | |
5231 | ||
5232 | return TRUE; | |
5233 | } | |
5234 | ||
5235 | ||
5236 | /* Find the nearest line to a particular section and offset, for error | |
5237 | reporting. This code is a duplicate of the code in elf.c, except | |
5238 | that it uses arm_elf_find_function. */ | |
5239 | ||
5240 | static bfd_boolean | |
5241 | elf32_arm_find_nearest_line (bfd * abfd, | |
5242 | asection * section, | |
5243 | asymbol ** symbols, | |
5244 | bfd_vma offset, | |
5245 | const char ** filename_ptr, | |
5246 | const char ** functionname_ptr, | |
5247 | unsigned int * line_ptr) | |
5248 | { | |
5249 | bfd_boolean found = FALSE; | |
5250 | ||
5251 | /* We skip _bfd_dwarf1_find_nearest_line since no known ARM toolchain uses it. */ | |
5252 | ||
5253 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |
5254 | filename_ptr, functionname_ptr, | |
5255 | line_ptr, 0, | |
5256 | & elf_tdata (abfd)->dwarf2_find_line_info)) | |
5257 | { | |
5258 | if (!*functionname_ptr) | |
5259 | arm_elf_find_function (abfd, section, symbols, offset, | |
5260 | *filename_ptr ? NULL : filename_ptr, | |
5261 | functionname_ptr); | |
f21f3fe0 | 5262 | |
0367ecfb NC |
5263 | return TRUE; |
5264 | } | |
5265 | ||
5266 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
5267 | & found, filename_ptr, | |
5268 | functionname_ptr, line_ptr, | |
5269 | & elf_tdata (abfd)->line_info)) | |
5270 | return FALSE; | |
5271 | ||
5272 | if (found && (*functionname_ptr || *line_ptr)) | |
5273 | return TRUE; | |
5274 | ||
5275 | if (symbols == NULL) | |
5276 | return FALSE; | |
5277 | ||
5278 | if (! arm_elf_find_function (abfd, section, symbols, offset, | |
5279 | filename_ptr, functionname_ptr)) | |
5280 | return FALSE; | |
5281 | ||
5282 | *line_ptr = 0; | |
b34976b6 | 5283 | return TRUE; |
252b5132 RH |
5284 | } |
5285 | ||
4ab527b0 FF |
5286 | static bfd_boolean |
5287 | elf32_arm_find_inliner_info (bfd * abfd, | |
5288 | const char ** filename_ptr, | |
5289 | const char ** functionname_ptr, | |
5290 | unsigned int * line_ptr) | |
5291 | { | |
5292 | bfd_boolean found; | |
5293 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
5294 | functionname_ptr, line_ptr, | |
5295 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
5296 | return found; | |
5297 | } | |
5298 | ||
252b5132 RH |
5299 | /* Adjust a symbol defined by a dynamic object and referenced by a |
5300 | regular object. The current definition is in some section of the | |
5301 | dynamic object, but we're not including those sections. We have to | |
5302 | change the definition to something the rest of the link can | |
5303 | understand. */ | |
5304 | ||
b34976b6 | 5305 | static bfd_boolean |
57e8b36a NC |
5306 | elf32_arm_adjust_dynamic_symbol (struct bfd_link_info * info, |
5307 | struct elf_link_hash_entry * h) | |
252b5132 RH |
5308 | { |
5309 | bfd * dynobj; | |
5310 | asection * s; | |
5311 | unsigned int power_of_two; | |
b7693d02 | 5312 | struct elf32_arm_link_hash_entry * eh; |
67687978 | 5313 | struct elf32_arm_link_hash_table *globals; |
252b5132 | 5314 | |
67687978 | 5315 | globals = elf32_arm_hash_table (info); |
252b5132 RH |
5316 | dynobj = elf_hash_table (info)->dynobj; |
5317 | ||
5318 | /* Make sure we know what is going on here. */ | |
5319 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 5320 | && (h->needs_plt |
f6e332e6 | 5321 | || h->u.weakdef != NULL |
f5385ebf AM |
5322 | || (h->def_dynamic |
5323 | && h->ref_regular | |
5324 | && !h->def_regular))); | |
252b5132 | 5325 | |
b7693d02 DJ |
5326 | eh = (struct elf32_arm_link_hash_entry *) h; |
5327 | ||
252b5132 RH |
5328 | /* If this is a function, put it in the procedure linkage table. We |
5329 | will fill in the contents of the procedure linkage table later, | |
5330 | when we know the address of the .got section. */ | |
b7693d02 | 5331 | if (h->type == STT_FUNC || h->type == STT_ARM_TFUNC |
f5385ebf | 5332 | || h->needs_plt) |
252b5132 | 5333 | { |
5e681ec4 PB |
5334 | if (h->plt.refcount <= 0 |
5335 | || SYMBOL_CALLS_LOCAL (info, h) | |
5336 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5337 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
5338 | { |
5339 | /* This case can occur if we saw a PLT32 reloc in an input | |
5e681ec4 PB |
5340 | file, but the symbol was never referred to by a dynamic |
5341 | object, or if all references were garbage collected. In | |
5342 | such a case, we don't actually need to build a procedure | |
5343 | linkage table, and we can just do a PC24 reloc instead. */ | |
5344 | h->plt.offset = (bfd_vma) -1; | |
b7693d02 | 5345 | eh->plt_thumb_refcount = 0; |
f5385ebf | 5346 | h->needs_plt = 0; |
252b5132 RH |
5347 | } |
5348 | ||
b34976b6 | 5349 | return TRUE; |
252b5132 | 5350 | } |
5e681ec4 | 5351 | else |
b7693d02 DJ |
5352 | { |
5353 | /* It's possible that we incorrectly decided a .plt reloc was | |
5354 | needed for an R_ARM_PC24 or similar reloc to a non-function sym | |
5355 | in check_relocs. We can't decide accurately between function | |
5356 | and non-function syms in check-relocs; Objects loaded later in | |
5357 | the link may change h->type. So fix it now. */ | |
5358 | h->plt.offset = (bfd_vma) -1; | |
5359 | eh->plt_thumb_refcount = 0; | |
5360 | } | |
252b5132 RH |
5361 | |
5362 | /* If this is a weak symbol, and there is a real definition, the | |
5363 | processor independent code will have arranged for us to see the | |
5364 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 5365 | if (h->u.weakdef != NULL) |
252b5132 | 5366 | { |
f6e332e6 AM |
5367 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
5368 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
5369 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
5370 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
b34976b6 | 5371 | return TRUE; |
252b5132 RH |
5372 | } |
5373 | ||
ba93b8ac DJ |
5374 | /* If there are no non-GOT references, we do not need a copy |
5375 | relocation. */ | |
5376 | if (!h->non_got_ref) | |
5377 | return TRUE; | |
5378 | ||
252b5132 RH |
5379 | /* This is a reference to a symbol defined by a dynamic object which |
5380 | is not a function. */ | |
5381 | ||
5382 | /* If we are creating a shared library, we must presume that the | |
5383 | only references to the symbol are via the global offset table. | |
5384 | For such cases we need not do anything here; the relocations will | |
67687978 PB |
5385 | be handled correctly by relocate_section. Relocatable executables |
5386 | can reference data in shared objects directly, so we don't need to | |
5387 | do anything here. */ | |
5388 | if (info->shared || globals->root.is_relocatable_executable) | |
b34976b6 | 5389 | return TRUE; |
252b5132 | 5390 | |
909272ee AM |
5391 | if (h->size == 0) |
5392 | { | |
5393 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
5394 | h->root.root.string); | |
5395 | return TRUE; | |
5396 | } | |
5397 | ||
252b5132 RH |
5398 | /* We must allocate the symbol in our .dynbss section, which will |
5399 | become part of the .bss section of the executable. There will be | |
5400 | an entry for this symbol in the .dynsym section. The dynamic | |
5401 | object will contain position independent code, so all references | |
5402 | from the dynamic object to this symbol will go through the global | |
5403 | offset table. The dynamic linker will use the .dynsym entry to | |
5404 | determine the address it must put in the global offset table, so | |
5405 | both the dynamic object and the regular object will refer to the | |
5406 | same memory location for the variable. */ | |
252b5132 RH |
5407 | s = bfd_get_section_by_name (dynobj, ".dynbss"); |
5408 | BFD_ASSERT (s != NULL); | |
5409 | ||
5410 | /* We must generate a R_ARM_COPY reloc to tell the dynamic linker to | |
5411 | copy the initial value out of the dynamic object and into the | |
5412 | runtime process image. We need to remember the offset into the | |
5413 | .rel.bss section we are going to use. */ | |
5414 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
5415 | { | |
5416 | asection *srel; | |
5417 | ||
5418 | srel = bfd_get_section_by_name (dynobj, ".rel.bss"); | |
5419 | BFD_ASSERT (srel != NULL); | |
eea6121a | 5420 | srel->size += sizeof (Elf32_External_Rel); |
f5385ebf | 5421 | h->needs_copy = 1; |
252b5132 RH |
5422 | } |
5423 | ||
5424 | /* We need to figure out the alignment required for this symbol. I | |
5425 | have no idea how ELF linkers handle this. */ | |
5426 | power_of_two = bfd_log2 (h->size); | |
5427 | if (power_of_two > 3) | |
5428 | power_of_two = 3; | |
5429 | ||
5430 | /* Apply the required alignment. */ | |
eea6121a | 5431 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
252b5132 RH |
5432 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
5433 | { | |
5434 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
b34976b6 | 5435 | return FALSE; |
252b5132 RH |
5436 | } |
5437 | ||
5438 | /* Define the symbol as being at this point in the section. */ | |
5439 | h->root.u.def.section = s; | |
eea6121a | 5440 | h->root.u.def.value = s->size; |
252b5132 RH |
5441 | |
5442 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 5443 | s->size += h->size; |
252b5132 | 5444 | |
b34976b6 | 5445 | return TRUE; |
252b5132 RH |
5446 | } |
5447 | ||
5e681ec4 PB |
5448 | /* Allocate space in .plt, .got and associated reloc sections for |
5449 | dynamic relocs. */ | |
5450 | ||
5451 | static bfd_boolean | |
57e8b36a | 5452 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
5e681ec4 PB |
5453 | { |
5454 | struct bfd_link_info *info; | |
5455 | struct elf32_arm_link_hash_table *htab; | |
5456 | struct elf32_arm_link_hash_entry *eh; | |
5457 | struct elf32_arm_relocs_copied *p; | |
5458 | ||
b7693d02 DJ |
5459 | eh = (struct elf32_arm_link_hash_entry *) h; |
5460 | ||
5e681ec4 PB |
5461 | if (h->root.type == bfd_link_hash_indirect) |
5462 | return TRUE; | |
5463 | ||
5464 | if (h->root.type == bfd_link_hash_warning) | |
5465 | /* When warning symbols are created, they **replace** the "real" | |
5466 | entry in the hash table, thus we never get to see the real | |
5467 | symbol in a hash traversal. So look at it now. */ | |
5468 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5469 | ||
5470 | info = (struct bfd_link_info *) inf; | |
5471 | htab = elf32_arm_hash_table (info); | |
5472 | ||
5473 | if (htab->root.dynamic_sections_created | |
5474 | && h->plt.refcount > 0) | |
5475 | { | |
5476 | /* Make sure this symbol is output as a dynamic symbol. | |
5477 | Undefined weak syms won't yet be marked as dynamic. */ | |
5478 | if (h->dynindx == -1 | |
f5385ebf | 5479 | && !h->forced_local) |
5e681ec4 | 5480 | { |
c152c796 | 5481 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
5482 | return FALSE; |
5483 | } | |
5484 | ||
5485 | if (info->shared | |
7359ea65 | 5486 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
5e681ec4 PB |
5487 | { |
5488 | asection *s = htab->splt; | |
5489 | ||
5490 | /* If this is the first .plt entry, make room for the special | |
5491 | first entry. */ | |
eea6121a | 5492 | if (s->size == 0) |
e5a52504 | 5493 | s->size += htab->plt_header_size; |
5e681ec4 | 5494 | |
eea6121a | 5495 | h->plt.offset = s->size; |
5e681ec4 | 5496 | |
b7693d02 DJ |
5497 | /* If we will insert a Thumb trampoline before this PLT, leave room |
5498 | for it. */ | |
33bfe774 | 5499 | if (!htab->use_blx && eh->plt_thumb_refcount > 0) |
b7693d02 DJ |
5500 | { |
5501 | h->plt.offset += PLT_THUMB_STUB_SIZE; | |
5502 | s->size += PLT_THUMB_STUB_SIZE; | |
5503 | } | |
5504 | ||
5e681ec4 PB |
5505 | /* If this symbol is not defined in a regular file, and we are |
5506 | not generating a shared library, then set the symbol to this | |
5507 | location in the .plt. This is required to make function | |
5508 | pointers compare as equal between the normal executable and | |
5509 | the shared library. */ | |
5510 | if (! info->shared | |
f5385ebf | 5511 | && !h->def_regular) |
5e681ec4 PB |
5512 | { |
5513 | h->root.u.def.section = s; | |
5514 | h->root.u.def.value = h->plt.offset; | |
b7693d02 DJ |
5515 | |
5516 | /* Make sure the function is not marked as Thumb, in case | |
5517 | it is the target of an ABS32 relocation, which will | |
5518 | point to the PLT entry. */ | |
5519 | if (ELF_ST_TYPE (h->type) == STT_ARM_TFUNC) | |
5520 | h->type = ELF_ST_INFO (ELF_ST_BIND (h->type), STT_FUNC); | |
5e681ec4 PB |
5521 | } |
5522 | ||
5523 | /* Make room for this entry. */ | |
e5a52504 | 5524 | s->size += htab->plt_entry_size; |
5e681ec4 | 5525 | |
e5a52504 | 5526 | if (!htab->symbian_p) |
b7693d02 DJ |
5527 | { |
5528 | /* We also need to make an entry in the .got.plt section, which | |
5529 | will be placed in the .got section by the linker script. */ | |
5530 | eh->plt_got_offset = htab->sgotplt->size; | |
5531 | htab->sgotplt->size += 4; | |
5532 | } | |
5e681ec4 PB |
5533 | |
5534 | /* We also need to make an entry in the .rel.plt section. */ | |
eea6121a | 5535 | htab->srelplt->size += sizeof (Elf32_External_Rel); |
5e681ec4 PB |
5536 | } |
5537 | else | |
5538 | { | |
5539 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 5540 | h->needs_plt = 0; |
5e681ec4 PB |
5541 | } |
5542 | } | |
5543 | else | |
5544 | { | |
5545 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 5546 | h->needs_plt = 0; |
5e681ec4 PB |
5547 | } |
5548 | ||
5549 | if (h->got.refcount > 0) | |
5550 | { | |
5551 | asection *s; | |
5552 | bfd_boolean dyn; | |
ba93b8ac DJ |
5553 | int tls_type = elf32_arm_hash_entry (h)->tls_type; |
5554 | int indx; | |
5e681ec4 PB |
5555 | |
5556 | /* Make sure this symbol is output as a dynamic symbol. | |
5557 | Undefined weak syms won't yet be marked as dynamic. */ | |
5558 | if (h->dynindx == -1 | |
f5385ebf | 5559 | && !h->forced_local) |
5e681ec4 | 5560 | { |
c152c796 | 5561 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
5562 | return FALSE; |
5563 | } | |
5564 | ||
e5a52504 MM |
5565 | if (!htab->symbian_p) |
5566 | { | |
5567 | s = htab->sgot; | |
5568 | h->got.offset = s->size; | |
ba93b8ac DJ |
5569 | |
5570 | if (tls_type == GOT_UNKNOWN) | |
5571 | abort (); | |
5572 | ||
5573 | if (tls_type == GOT_NORMAL) | |
5574 | /* Non-TLS symbols need one GOT slot. */ | |
5575 | s->size += 4; | |
5576 | else | |
5577 | { | |
5578 | if (tls_type & GOT_TLS_GD) | |
5579 | /* R_ARM_TLS_GD32 needs 2 consecutive GOT slots. */ | |
5580 | s->size += 8; | |
5581 | if (tls_type & GOT_TLS_IE) | |
5582 | /* R_ARM_TLS_IE32 needs one GOT slot. */ | |
5583 | s->size += 4; | |
5584 | } | |
5585 | ||
e5a52504 | 5586 | dyn = htab->root.dynamic_sections_created; |
ba93b8ac DJ |
5587 | |
5588 | indx = 0; | |
5589 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
5590 | && (!info->shared | |
5591 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
5592 | indx = h->dynindx; | |
5593 | ||
5594 | if (tls_type != GOT_NORMAL | |
5595 | && (info->shared || indx != 0) | |
5596 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5597 | || h->root.type != bfd_link_hash_undefweak)) | |
5598 | { | |
5599 | if (tls_type & GOT_TLS_IE) | |
5600 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
5601 | ||
5602 | if (tls_type & GOT_TLS_GD) | |
5603 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
5604 | ||
5605 | if ((tls_type & GOT_TLS_GD) && indx != 0) | |
5606 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
5607 | } | |
5608 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5609 | || h->root.type != bfd_link_hash_undefweak) | |
5610 | && (info->shared | |
5611 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
e5a52504 MM |
5612 | htab->srelgot->size += sizeof (Elf32_External_Rel); |
5613 | } | |
5e681ec4 PB |
5614 | } |
5615 | else | |
5616 | h->got.offset = (bfd_vma) -1; | |
5617 | ||
5e681ec4 PB |
5618 | if (eh->relocs_copied == NULL) |
5619 | return TRUE; | |
5620 | ||
5621 | /* In the shared -Bsymbolic case, discard space allocated for | |
5622 | dynamic pc-relative relocs against symbols which turn out to be | |
5623 | defined in regular objects. For the normal shared case, discard | |
5624 | space for pc-relative relocs that have become local due to symbol | |
5625 | visibility changes. */ | |
5626 | ||
67687978 | 5627 | if (info->shared || htab->root.is_relocatable_executable) |
5e681ec4 | 5628 | { |
ba93b8ac DJ |
5629 | /* The only reloc that uses pc_count is R_ARM_REL32, which will |
5630 | appear on something like ".long foo - .". We want calls to | |
5631 | protected symbols to resolve directly to the function rather | |
5632 | than going via the plt. If people want function pointer | |
5633 | comparisons to work as expected then they should avoid | |
5634 | writing assembly like ".long foo - .". */ | |
5635 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
5636 | { | |
5637 | struct elf32_arm_relocs_copied **pp; | |
5638 | ||
5639 | for (pp = &eh->relocs_copied; (p = *pp) != NULL; ) | |
5640 | { | |
5641 | p->count -= p->pc_count; | |
5642 | p->pc_count = 0; | |
5643 | if (p->count == 0) | |
5644 | *pp = p->next; | |
5645 | else | |
5646 | pp = &p->next; | |
5647 | } | |
5648 | } | |
5649 | ||
5650 | /* Also discard relocs on undefined weak syms with non-default | |
7359ea65 | 5651 | visibility. */ |
5e681ec4 PB |
5652 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
5653 | && h->root.type == bfd_link_hash_undefweak) | |
5654 | eh->relocs_copied = NULL; | |
67687978 PB |
5655 | else if (htab->root.is_relocatable_executable && h->dynindx == -1 |
5656 | && h->root.type == bfd_link_hash_new) | |
5657 | { | |
5658 | /* Output absolute symbols so that we can create relocations | |
5659 | against them. For normal symbols we output a relocation | |
5660 | against the section that contains them. */ | |
5661 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
5662 | return FALSE; | |
5663 | } | |
5664 | ||
5e681ec4 PB |
5665 | } |
5666 | else | |
5667 | { | |
5668 | /* For the non-shared case, discard space for relocs against | |
5669 | symbols which turn out to need copy relocs or are not | |
5670 | dynamic. */ | |
5671 | ||
f5385ebf AM |
5672 | if (!h->non_got_ref |
5673 | && ((h->def_dynamic | |
5674 | && !h->def_regular) | |
5e681ec4 PB |
5675 | || (htab->root.dynamic_sections_created |
5676 | && (h->root.type == bfd_link_hash_undefweak | |
5677 | || h->root.type == bfd_link_hash_undefined)))) | |
5678 | { | |
5679 | /* Make sure this symbol is output as a dynamic symbol. | |
5680 | Undefined weak syms won't yet be marked as dynamic. */ | |
5681 | if (h->dynindx == -1 | |
f5385ebf | 5682 | && !h->forced_local) |
5e681ec4 | 5683 | { |
c152c796 | 5684 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
5685 | return FALSE; |
5686 | } | |
5687 | ||
5688 | /* If that succeeded, we know we'll be keeping all the | |
5689 | relocs. */ | |
5690 | if (h->dynindx != -1) | |
5691 | goto keep; | |
5692 | } | |
5693 | ||
5694 | eh->relocs_copied = NULL; | |
5695 | ||
5696 | keep: ; | |
5697 | } | |
5698 | ||
5699 | /* Finally, allocate space. */ | |
5700 | for (p = eh->relocs_copied; p != NULL; p = p->next) | |
5701 | { | |
5702 | asection *sreloc = elf_section_data (p->section)->sreloc; | |
eea6121a | 5703 | sreloc->size += p->count * sizeof (Elf32_External_Rel); |
5e681ec4 PB |
5704 | } |
5705 | ||
5706 | return TRUE; | |
5707 | } | |
5708 | ||
08d1f311 DJ |
5709 | /* Find any dynamic relocs that apply to read-only sections. */ |
5710 | ||
5711 | static bfd_boolean | |
5712 | elf32_arm_readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf) | |
5713 | { | |
5714 | struct elf32_arm_link_hash_entry *eh; | |
5715 | struct elf32_arm_relocs_copied *p; | |
5716 | ||
5717 | if (h->root.type == bfd_link_hash_warning) | |
5718 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5719 | ||
5720 | eh = (struct elf32_arm_link_hash_entry *) h; | |
5721 | for (p = eh->relocs_copied; p != NULL; p = p->next) | |
5722 | { | |
5723 | asection *s = p->section; | |
5724 | ||
5725 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5726 | { | |
5727 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
5728 | ||
5729 | info->flags |= DF_TEXTREL; | |
5730 | ||
5731 | /* Not an error, just cut short the traversal. */ | |
5732 | return FALSE; | |
5733 | } | |
5734 | } | |
5735 | return TRUE; | |
5736 | } | |
5737 | ||
252b5132 RH |
5738 | /* Set the sizes of the dynamic sections. */ |
5739 | ||
b34976b6 | 5740 | static bfd_boolean |
57e8b36a NC |
5741 | elf32_arm_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED, |
5742 | struct bfd_link_info * info) | |
252b5132 RH |
5743 | { |
5744 | bfd * dynobj; | |
5745 | asection * s; | |
b34976b6 AM |
5746 | bfd_boolean plt; |
5747 | bfd_boolean relocs; | |
5e681ec4 PB |
5748 | bfd *ibfd; |
5749 | struct elf32_arm_link_hash_table *htab; | |
252b5132 | 5750 | |
5e681ec4 | 5751 | htab = elf32_arm_hash_table (info); |
252b5132 RH |
5752 | dynobj = elf_hash_table (info)->dynobj; |
5753 | BFD_ASSERT (dynobj != NULL); | |
5754 | ||
5755 | if (elf_hash_table (info)->dynamic_sections_created) | |
5756 | { | |
5757 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 5758 | if (info->executable) |
252b5132 RH |
5759 | { |
5760 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
5761 | BFD_ASSERT (s != NULL); | |
eea6121a | 5762 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
252b5132 RH |
5763 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
5764 | } | |
5765 | } | |
5e681ec4 PB |
5766 | |
5767 | /* Set up .got offsets for local syms, and space for local dynamic | |
5768 | relocs. */ | |
5769 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
252b5132 | 5770 | { |
5e681ec4 PB |
5771 | bfd_signed_vma *local_got; |
5772 | bfd_signed_vma *end_local_got; | |
5773 | char *local_tls_type; | |
5774 | bfd_size_type locsymcount; | |
5775 | Elf_Internal_Shdr *symtab_hdr; | |
5776 | asection *srel; | |
5777 | ||
5778 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
5779 | continue; | |
5780 | ||
5781 | for (s = ibfd->sections; s != NULL; s = s->next) | |
5782 | { | |
5783 | struct elf32_arm_relocs_copied *p; | |
5784 | ||
5785 | for (p = *((struct elf32_arm_relocs_copied **) | |
5786 | &elf_section_data (s)->local_dynrel); | |
5787 | p != NULL; | |
5788 | p = p->next) | |
5789 | { | |
5790 | if (!bfd_is_abs_section (p->section) | |
5791 | && bfd_is_abs_section (p->section->output_section)) | |
5792 | { | |
5793 | /* Input section has been discarded, either because | |
5794 | it is a copy of a linkonce section or due to | |
5795 | linker script /DISCARD/, so we'll be discarding | |
5796 | the relocs too. */ | |
5797 | } | |
5798 | else if (p->count != 0) | |
5799 | { | |
5800 | srel = elf_section_data (p->section)->sreloc; | |
eea6121a | 5801 | srel->size += p->count * sizeof (Elf32_External_Rel); |
5e681ec4 PB |
5802 | if ((p->section->output_section->flags & SEC_READONLY) != 0) |
5803 | info->flags |= DF_TEXTREL; | |
5804 | } | |
5805 | } | |
5806 | } | |
5807 | ||
5808 | local_got = elf_local_got_refcounts (ibfd); | |
5809 | if (!local_got) | |
5810 | continue; | |
5811 | ||
5812 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5813 | locsymcount = symtab_hdr->sh_info; | |
5814 | end_local_got = local_got + locsymcount; | |
ba93b8ac | 5815 | local_tls_type = elf32_arm_local_got_tls_type (ibfd); |
5e681ec4 PB |
5816 | s = htab->sgot; |
5817 | srel = htab->srelgot; | |
5818 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) | |
5819 | { | |
5820 | if (*local_got > 0) | |
5821 | { | |
eea6121a | 5822 | *local_got = s->size; |
ba93b8ac DJ |
5823 | if (*local_tls_type & GOT_TLS_GD) |
5824 | /* TLS_GD relocs need an 8-byte structure in the GOT. */ | |
5825 | s->size += 8; | |
5826 | if (*local_tls_type & GOT_TLS_IE) | |
5827 | s->size += 4; | |
5828 | if (*local_tls_type == GOT_NORMAL) | |
5829 | s->size += 4; | |
5830 | ||
5831 | if (info->shared || *local_tls_type == GOT_TLS_GD) | |
eea6121a | 5832 | srel->size += sizeof (Elf32_External_Rel); |
5e681ec4 PB |
5833 | } |
5834 | else | |
5835 | *local_got = (bfd_vma) -1; | |
5836 | } | |
252b5132 RH |
5837 | } |
5838 | ||
ba93b8ac DJ |
5839 | if (htab->tls_ldm_got.refcount > 0) |
5840 | { | |
5841 | /* Allocate two GOT entries and one dynamic relocation (if necessary) | |
5842 | for R_ARM_TLS_LDM32 relocations. */ | |
5843 | htab->tls_ldm_got.offset = htab->sgot->size; | |
5844 | htab->sgot->size += 8; | |
5845 | if (info->shared) | |
5846 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
5847 | } | |
5848 | else | |
5849 | htab->tls_ldm_got.offset = -1; | |
5850 | ||
5e681ec4 PB |
5851 | /* Allocate global sym .plt and .got entries, and space for global |
5852 | sym dynamic relocs. */ | |
57e8b36a | 5853 | elf_link_hash_traverse (& htab->root, allocate_dynrelocs, info); |
252b5132 RH |
5854 | |
5855 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
5856 | determined the sizes of the various dynamic sections. Allocate | |
5857 | memory for them. */ | |
b34976b6 AM |
5858 | plt = FALSE; |
5859 | relocs = FALSE; | |
252b5132 RH |
5860 | for (s = dynobj->sections; s != NULL; s = s->next) |
5861 | { | |
5862 | const char * name; | |
252b5132 RH |
5863 | |
5864 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
5865 | continue; | |
5866 | ||
5867 | /* It's OK to base decisions on the section name, because none | |
5868 | of the dynobj section names depend upon the input files. */ | |
5869 | name = bfd_get_section_name (dynobj, s); | |
5870 | ||
24a1ba0f | 5871 | if (strcmp (name, ".plt") == 0) |
252b5132 | 5872 | { |
c456f082 AM |
5873 | /* Remember whether there is a PLT. */ |
5874 | plt = s->size != 0; | |
252b5132 RH |
5875 | } |
5876 | else if (strncmp (name, ".rel", 4) == 0) | |
5877 | { | |
c456f082 | 5878 | if (s->size != 0) |
252b5132 | 5879 | { |
252b5132 RH |
5880 | /* Remember whether there are any reloc sections other |
5881 | than .rel.plt. */ | |
5882 | if (strcmp (name, ".rel.plt") != 0) | |
b34976b6 | 5883 | relocs = TRUE; |
252b5132 RH |
5884 | |
5885 | /* We use the reloc_count field as a counter if we need | |
5886 | to copy relocs into the output file. */ | |
5887 | s->reloc_count = 0; | |
5888 | } | |
5889 | } | |
c456f082 AM |
5890 | else if (strncmp (name, ".got", 4) != 0 |
5891 | && strcmp (name, ".dynbss") != 0) | |
252b5132 RH |
5892 | { |
5893 | /* It's not one of our sections, so don't allocate space. */ | |
5894 | continue; | |
5895 | } | |
5896 | ||
c456f082 | 5897 | if (s->size == 0) |
252b5132 | 5898 | { |
c456f082 AM |
5899 | /* If we don't need this section, strip it from the |
5900 | output file. This is mostly to handle .rel.bss and | |
5901 | .rel.plt. We must create both sections in | |
5902 | create_dynamic_sections, because they must be created | |
5903 | before the linker maps input sections to output | |
5904 | sections. The linker does that before | |
5905 | adjust_dynamic_symbol is called, and it is that | |
5906 | function which decides whether anything needs to go | |
5907 | into these sections. */ | |
8423293d | 5908 | s->flags |= SEC_EXCLUDE; |
252b5132 RH |
5909 | continue; |
5910 | } | |
5911 | ||
c456f082 AM |
5912 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
5913 | continue; | |
5914 | ||
252b5132 | 5915 | /* Allocate memory for the section contents. */ |
eea6121a | 5916 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
c456f082 | 5917 | if (s->contents == NULL) |
b34976b6 | 5918 | return FALSE; |
252b5132 RH |
5919 | } |
5920 | ||
5921 | if (elf_hash_table (info)->dynamic_sections_created) | |
5922 | { | |
5923 | /* Add some entries to the .dynamic section. We fill in the | |
5924 | values later, in elf32_arm_finish_dynamic_sections, but we | |
5925 | must add the entries now so that we get the correct size for | |
5926 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
5927 | dynamic linker and used by the debugger. */ | |
dc810e39 | 5928 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 5929 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 5930 | |
8532796c | 5931 | if (info->executable) |
252b5132 | 5932 | { |
dc810e39 | 5933 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 5934 | return FALSE; |
252b5132 RH |
5935 | } |
5936 | ||
5937 | if (plt) | |
5938 | { | |
dc810e39 AM |
5939 | if ( !add_dynamic_entry (DT_PLTGOT, 0) |
5940 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
5941 | || !add_dynamic_entry (DT_PLTREL, DT_REL) | |
5942 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 5943 | return FALSE; |
252b5132 RH |
5944 | } |
5945 | ||
5946 | if (relocs) | |
5947 | { | |
dc810e39 AM |
5948 | if ( !add_dynamic_entry (DT_REL, 0) |
5949 | || !add_dynamic_entry (DT_RELSZ, 0) | |
5950 | || !add_dynamic_entry (DT_RELENT, sizeof (Elf32_External_Rel))) | |
b34976b6 | 5951 | return FALSE; |
252b5132 RH |
5952 | } |
5953 | ||
08d1f311 DJ |
5954 | /* If any dynamic relocs apply to a read-only section, |
5955 | then we need a DT_TEXTREL entry. */ | |
5956 | if ((info->flags & DF_TEXTREL) == 0) | |
5957 | elf_link_hash_traverse (&htab->root, elf32_arm_readonly_dynrelocs, | |
5958 | (PTR) info); | |
5959 | ||
99e4ae17 | 5960 | if ((info->flags & DF_TEXTREL) != 0) |
252b5132 | 5961 | { |
dc810e39 | 5962 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 5963 | return FALSE; |
252b5132 RH |
5964 | } |
5965 | } | |
8532796c | 5966 | #undef add_dynamic_entry |
252b5132 | 5967 | |
b34976b6 | 5968 | return TRUE; |
252b5132 RH |
5969 | } |
5970 | ||
252b5132 RH |
5971 | /* Finish up dynamic symbol handling. We set the contents of various |
5972 | dynamic sections here. */ | |
5973 | ||
b34976b6 | 5974 | static bfd_boolean |
57e8b36a NC |
5975 | elf32_arm_finish_dynamic_symbol (bfd * output_bfd, struct bfd_link_info * info, |
5976 | struct elf_link_hash_entry * h, Elf_Internal_Sym * sym) | |
252b5132 RH |
5977 | { |
5978 | bfd * dynobj; | |
e5a52504 | 5979 | struct elf32_arm_link_hash_table *htab; |
b7693d02 | 5980 | struct elf32_arm_link_hash_entry *eh; |
252b5132 RH |
5981 | |
5982 | dynobj = elf_hash_table (info)->dynobj; | |
e5a52504 | 5983 | htab = elf32_arm_hash_table (info); |
b7693d02 | 5984 | eh = (struct elf32_arm_link_hash_entry *) h; |
252b5132 RH |
5985 | |
5986 | if (h->plt.offset != (bfd_vma) -1) | |
5987 | { | |
5988 | asection * splt; | |
252b5132 | 5989 | asection * srel; |
e5a52504 | 5990 | bfd_byte *loc; |
24a1ba0f | 5991 | bfd_vma plt_index; |
947216bf | 5992 | Elf_Internal_Rela rel; |
252b5132 RH |
5993 | |
5994 | /* This symbol has an entry in the procedure linkage table. Set | |
5995 | it up. */ | |
5996 | ||
5997 | BFD_ASSERT (h->dynindx != -1); | |
5998 | ||
5999 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
252b5132 | 6000 | srel = bfd_get_section_by_name (dynobj, ".rel.plt"); |
e5a52504 | 6001 | BFD_ASSERT (splt != NULL && srel != NULL); |
252b5132 | 6002 | |
e5a52504 MM |
6003 | /* Fill in the entry in the procedure linkage table. */ |
6004 | if (htab->symbian_p) | |
6005 | { | |
6006 | unsigned i; | |
6007 | for (i = 0; i < htab->plt_entry_size / 4; ++i) | |
6008 | bfd_put_32 (output_bfd, | |
6009 | elf32_arm_symbian_plt_entry[i], | |
6010 | splt->contents + h->plt.offset + 4 * i); | |
6011 | ||
6012 | /* Fill in the entry in the .rel.plt section. */ | |
2a1b9a48 MM |
6013 | rel.r_offset = (splt->output_section->vma |
6014 | + splt->output_offset | |
e5a52504 MM |
6015 | + h->plt.offset + 4 * (i - 1)); |
6016 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT); | |
b7693d02 DJ |
6017 | |
6018 | /* Get the index in the procedure linkage table which | |
6019 | corresponds to this symbol. This is the index of this symbol | |
6020 | in all the symbols for which we are making plt entries. The | |
6021 | first entry in the procedure linkage table is reserved. */ | |
6022 | plt_index = ((h->plt.offset - htab->plt_header_size) | |
6023 | / htab->plt_entry_size); | |
e5a52504 MM |
6024 | } |
6025 | else | |
6026 | { | |
6027 | bfd_vma got_offset; | |
6028 | bfd_vma got_displacement; | |
6029 | asection * sgot; | |
6030 | ||
6031 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
6032 | BFD_ASSERT (sgot != NULL); | |
6033 | ||
b7693d02 DJ |
6034 | /* Get the offset into the .got.plt table of the entry that |
6035 | corresponds to this function. */ | |
6036 | got_offset = eh->plt_got_offset; | |
6037 | ||
6038 | /* Get the index in the procedure linkage table which | |
6039 | corresponds to this symbol. This is the index of this symbol | |
6040 | in all the symbols for which we are making plt entries. The | |
6041 | first three entries in .got.plt are reserved; after that | |
6042 | symbols appear in the same order as in .plt. */ | |
6043 | plt_index = (got_offset - 12) / 4; | |
e5a52504 MM |
6044 | |
6045 | /* Calculate the displacement between the PLT slot and the | |
b7693d02 DJ |
6046 | entry in the GOT. The eight-byte offset accounts for the |
6047 | value produced by adding to pc in the first instruction | |
6048 | of the PLT stub. */ | |
e5a52504 MM |
6049 | got_displacement = (sgot->output_section->vma |
6050 | + sgot->output_offset | |
6051 | + got_offset | |
6052 | - splt->output_section->vma | |
6053 | - splt->output_offset | |
6054 | - h->plt.offset | |
6055 | - 8); | |
5e681ec4 | 6056 | |
e5a52504 | 6057 | BFD_ASSERT ((got_displacement & 0xf0000000) == 0); |
5e681ec4 | 6058 | |
33bfe774 | 6059 | if (!htab->use_blx && eh->plt_thumb_refcount > 0) |
b7693d02 DJ |
6060 | { |
6061 | bfd_put_16 (output_bfd, elf32_arm_plt_thumb_stub[0], | |
6062 | splt->contents + h->plt.offset - 4); | |
6063 | bfd_put_16 (output_bfd, elf32_arm_plt_thumb_stub[1], | |
6064 | splt->contents + h->plt.offset - 2); | |
6065 | } | |
6066 | ||
e5a52504 MM |
6067 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[0] | ((got_displacement & 0x0ff00000) >> 20), |
6068 | splt->contents + h->plt.offset + 0); | |
6069 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[1] | ((got_displacement & 0x000ff000) >> 12), | |
6070 | splt->contents + h->plt.offset + 4); | |
6071 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[2] | (got_displacement & 0x00000fff), | |
6072 | splt->contents + h->plt.offset + 8); | |
5e681ec4 | 6073 | #ifdef FOUR_WORD_PLT |
e5a52504 MM |
6074 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[3], |
6075 | splt->contents + h->plt.offset + 12); | |
5e681ec4 | 6076 | #endif |
252b5132 | 6077 | |
e5a52504 MM |
6078 | /* Fill in the entry in the global offset table. */ |
6079 | bfd_put_32 (output_bfd, | |
6080 | (splt->output_section->vma | |
6081 | + splt->output_offset), | |
6082 | sgot->contents + got_offset); | |
6083 | ||
6084 | /* Fill in the entry in the .rel.plt section. */ | |
6085 | rel.r_offset = (sgot->output_section->vma | |
6086 | + sgot->output_offset | |
6087 | + got_offset); | |
6088 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_JUMP_SLOT); | |
6089 | } | |
57e8b36a | 6090 | |
947216bf AM |
6091 | loc = srel->contents + plt_index * sizeof (Elf32_External_Rel); |
6092 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
252b5132 | 6093 | |
f5385ebf | 6094 | if (!h->def_regular) |
252b5132 RH |
6095 | { |
6096 | /* Mark the symbol as undefined, rather than as defined in | |
6097 | the .plt section. Leave the value alone. */ | |
6098 | sym->st_shndx = SHN_UNDEF; | |
d982ba73 PB |
6099 | /* If the symbol is weak, we do need to clear the value. |
6100 | Otherwise, the PLT entry would provide a definition for | |
6101 | the symbol even if the symbol wasn't defined anywhere, | |
6102 | and so the symbol would never be NULL. */ | |
f5385ebf | 6103 | if (!h->ref_regular_nonweak) |
d982ba73 | 6104 | sym->st_value = 0; |
252b5132 RH |
6105 | } |
6106 | } | |
6107 | ||
ba93b8ac DJ |
6108 | if (h->got.offset != (bfd_vma) -1 |
6109 | && (elf32_arm_hash_entry (h)->tls_type & GOT_TLS_GD) == 0 | |
6110 | && (elf32_arm_hash_entry (h)->tls_type & GOT_TLS_IE) == 0) | |
252b5132 RH |
6111 | { |
6112 | asection * sgot; | |
6113 | asection * srel; | |
947216bf AM |
6114 | Elf_Internal_Rela rel; |
6115 | bfd_byte *loc; | |
252b5132 RH |
6116 | |
6117 | /* This symbol has an entry in the global offset table. Set it | |
6118 | up. */ | |
252b5132 RH |
6119 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
6120 | srel = bfd_get_section_by_name (dynobj, ".rel.got"); | |
6121 | BFD_ASSERT (sgot != NULL && srel != NULL); | |
6122 | ||
6123 | rel.r_offset = (sgot->output_section->vma | |
6124 | + sgot->output_offset | |
dc810e39 | 6125 | + (h->got.offset &~ (bfd_vma) 1)); |
252b5132 | 6126 | |
5e681ec4 PB |
6127 | /* If this is a static link, or it is a -Bsymbolic link and the |
6128 | symbol is defined locally or was forced to be local because | |
6129 | of a version file, we just want to emit a RELATIVE reloc. | |
6130 | The entry in the global offset table will already have been | |
6131 | initialized in the relocate_section function. */ | |
252b5132 | 6132 | if (info->shared |
5e681ec4 PB |
6133 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
6134 | { | |
6135 | BFD_ASSERT((h->got.offset & 1) != 0); | |
6136 | rel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE); | |
6137 | } | |
252b5132 RH |
6138 | else |
6139 | { | |
5e681ec4 | 6140 | BFD_ASSERT((h->got.offset & 1) == 0); |
252b5132 RH |
6141 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
6142 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT); | |
6143 | } | |
6144 | ||
947216bf AM |
6145 | loc = srel->contents + srel->reloc_count++ * sizeof (Elf32_External_Rel); |
6146 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
252b5132 RH |
6147 | } |
6148 | ||
f5385ebf | 6149 | if (h->needs_copy) |
252b5132 RH |
6150 | { |
6151 | asection * s; | |
947216bf AM |
6152 | Elf_Internal_Rela rel; |
6153 | bfd_byte *loc; | |
252b5132 RH |
6154 | |
6155 | /* This symbol needs a copy reloc. Set it up. */ | |
252b5132 RH |
6156 | BFD_ASSERT (h->dynindx != -1 |
6157 | && (h->root.type == bfd_link_hash_defined | |
6158 | || h->root.type == bfd_link_hash_defweak)); | |
6159 | ||
6160 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
6161 | ".rel.bss"); | |
6162 | BFD_ASSERT (s != NULL); | |
6163 | ||
6164 | rel.r_offset = (h->root.u.def.value | |
6165 | + h->root.u.def.section->output_section->vma | |
6166 | + h->root.u.def.section->output_offset); | |
6167 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_COPY); | |
947216bf AM |
6168 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rel); |
6169 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
252b5132 RH |
6170 | } |
6171 | ||
6172 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
6173 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
6174 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
6175 | sym->st_shndx = SHN_ABS; | |
6176 | ||
b34976b6 | 6177 | return TRUE; |
252b5132 RH |
6178 | } |
6179 | ||
6180 | /* Finish up the dynamic sections. */ | |
6181 | ||
b34976b6 | 6182 | static bfd_boolean |
57e8b36a | 6183 | elf32_arm_finish_dynamic_sections (bfd * output_bfd, struct bfd_link_info * info) |
252b5132 RH |
6184 | { |
6185 | bfd * dynobj; | |
6186 | asection * sgot; | |
6187 | asection * sdyn; | |
6188 | ||
6189 | dynobj = elf_hash_table (info)->dynobj; | |
6190 | ||
6191 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
229fcec5 | 6192 | BFD_ASSERT (elf32_arm_hash_table (info)->symbian_p || sgot != NULL); |
252b5132 RH |
6193 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
6194 | ||
6195 | if (elf_hash_table (info)->dynamic_sections_created) | |
6196 | { | |
6197 | asection *splt; | |
6198 | Elf32_External_Dyn *dyncon, *dynconend; | |
229fcec5 | 6199 | struct elf32_arm_link_hash_table *htab; |
252b5132 | 6200 | |
229fcec5 | 6201 | htab = elf32_arm_hash_table (info); |
252b5132 | 6202 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
24a1ba0f | 6203 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
252b5132 RH |
6204 | |
6205 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 6206 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
9b485d32 | 6207 | |
252b5132 RH |
6208 | for (; dyncon < dynconend; dyncon++) |
6209 | { | |
6210 | Elf_Internal_Dyn dyn; | |
6211 | const char * name; | |
6212 | asection * s; | |
6213 | ||
6214 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
6215 | ||
6216 | switch (dyn.d_tag) | |
6217 | { | |
229fcec5 MM |
6218 | unsigned int type; |
6219 | ||
252b5132 RH |
6220 | default: |
6221 | break; | |
6222 | ||
229fcec5 MM |
6223 | case DT_HASH: |
6224 | name = ".hash"; | |
6225 | goto get_vma_if_bpabi; | |
6226 | case DT_STRTAB: | |
6227 | name = ".dynstr"; | |
6228 | goto get_vma_if_bpabi; | |
6229 | case DT_SYMTAB: | |
6230 | name = ".dynsym"; | |
6231 | goto get_vma_if_bpabi; | |
c0042f5d MM |
6232 | case DT_VERSYM: |
6233 | name = ".gnu.version"; | |
6234 | goto get_vma_if_bpabi; | |
6235 | case DT_VERDEF: | |
6236 | name = ".gnu.version_d"; | |
6237 | goto get_vma_if_bpabi; | |
6238 | case DT_VERNEED: | |
6239 | name = ".gnu.version_r"; | |
6240 | goto get_vma_if_bpabi; | |
6241 | ||
252b5132 RH |
6242 | case DT_PLTGOT: |
6243 | name = ".got"; | |
6244 | goto get_vma; | |
6245 | case DT_JMPREL: | |
6246 | name = ".rel.plt"; | |
6247 | get_vma: | |
6248 | s = bfd_get_section_by_name (output_bfd, name); | |
6249 | BFD_ASSERT (s != NULL); | |
229fcec5 MM |
6250 | if (!htab->symbian_p) |
6251 | dyn.d_un.d_ptr = s->vma; | |
6252 | else | |
6253 | /* In the BPABI, tags in the PT_DYNAMIC section point | |
6254 | at the file offset, not the memory address, for the | |
6255 | convenience of the post linker. */ | |
6256 | dyn.d_un.d_ptr = s->filepos; | |
252b5132 RH |
6257 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6258 | break; | |
6259 | ||
229fcec5 MM |
6260 | get_vma_if_bpabi: |
6261 | if (htab->symbian_p) | |
6262 | goto get_vma; | |
6263 | break; | |
6264 | ||
252b5132 RH |
6265 | case DT_PLTRELSZ: |
6266 | s = bfd_get_section_by_name (output_bfd, ".rel.plt"); | |
6267 | BFD_ASSERT (s != NULL); | |
eea6121a | 6268 | dyn.d_un.d_val = s->size; |
252b5132 RH |
6269 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6270 | break; | |
229fcec5 | 6271 | |
252b5132 | 6272 | case DT_RELSZ: |
229fcec5 MM |
6273 | if (!htab->symbian_p) |
6274 | { | |
6275 | /* My reading of the SVR4 ABI indicates that the | |
6276 | procedure linkage table relocs (DT_JMPREL) should be | |
6277 | included in the overall relocs (DT_REL). This is | |
6278 | what Solaris does. However, UnixWare can not handle | |
6279 | that case. Therefore, we override the DT_RELSZ entry | |
6280 | here to make it not include the JMPREL relocs. Since | |
6281 | the linker script arranges for .rel.plt to follow all | |
6282 | other relocation sections, we don't have to worry | |
6283 | about changing the DT_REL entry. */ | |
6284 | s = bfd_get_section_by_name (output_bfd, ".rel.plt"); | |
6285 | if (s != NULL) | |
6286 | dyn.d_un.d_val -= s->size; | |
6287 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6288 | break; | |
6289 | } | |
6290 | /* Fall through */ | |
6291 | ||
6292 | case DT_REL: | |
6293 | case DT_RELA: | |
6294 | case DT_RELASZ: | |
6295 | /* In the BPABI, the DT_REL tag must point at the file | |
6296 | offset, not the VMA, of the first relocation | |
6297 | section. So, we use code similar to that in | |
6298 | elflink.c, but do not check for SHF_ALLOC on the | |
6299 | relcoation section, since relocations sections are | |
6300 | never allocated under the BPABI. The comments above | |
6301 | about Unixware notwithstanding, we include all of the | |
6302 | relocations here. */ | |
6303 | if (htab->symbian_p) | |
6304 | { | |
6305 | unsigned int i; | |
6306 | type = ((dyn.d_tag == DT_REL || dyn.d_tag == DT_RELSZ) | |
6307 | ? SHT_REL : SHT_RELA); | |
6308 | dyn.d_un.d_val = 0; | |
6309 | for (i = 1; i < elf_numsections (output_bfd); i++) | |
6310 | { | |
6311 | Elf_Internal_Shdr *hdr | |
6312 | = elf_elfsections (output_bfd)[i]; | |
6313 | if (hdr->sh_type == type) | |
6314 | { | |
6315 | if (dyn.d_tag == DT_RELSZ | |
6316 | || dyn.d_tag == DT_RELASZ) | |
6317 | dyn.d_un.d_val += hdr->sh_size; | |
de52dba4 AM |
6318 | else if ((ufile_ptr) hdr->sh_offset |
6319 | <= dyn.d_un.d_val - 1) | |
229fcec5 MM |
6320 | dyn.d_un.d_val = hdr->sh_offset; |
6321 | } | |
6322 | } | |
6323 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6324 | } | |
252b5132 | 6325 | break; |
88f7bcd5 NC |
6326 | |
6327 | /* Set the bottom bit of DT_INIT/FINI if the | |
6328 | corresponding function is Thumb. */ | |
6329 | case DT_INIT: | |
6330 | name = info->init_function; | |
6331 | goto get_sym; | |
6332 | case DT_FINI: | |
6333 | name = info->fini_function; | |
6334 | get_sym: | |
6335 | /* If it wasn't set by elf_bfd_final_link | |
4cc11e76 | 6336 | then there is nothing to adjust. */ |
88f7bcd5 NC |
6337 | if (dyn.d_un.d_val != 0) |
6338 | { | |
6339 | struct elf_link_hash_entry * eh; | |
6340 | ||
6341 | eh = elf_link_hash_lookup (elf_hash_table (info), name, | |
b34976b6 | 6342 | FALSE, FALSE, TRUE); |
88f7bcd5 NC |
6343 | if (eh != (struct elf_link_hash_entry *) NULL |
6344 | && ELF_ST_TYPE (eh->type) == STT_ARM_TFUNC) | |
6345 | { | |
6346 | dyn.d_un.d_val |= 1; | |
b34976b6 | 6347 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
88f7bcd5 NC |
6348 | } |
6349 | } | |
6350 | break; | |
252b5132 RH |
6351 | } |
6352 | } | |
6353 | ||
24a1ba0f | 6354 | /* Fill in the first entry in the procedure linkage table. */ |
e5a52504 | 6355 | if (splt->size > 0 && elf32_arm_hash_table (info)->plt_header_size) |
f7a74f8c | 6356 | { |
5e681ec4 PB |
6357 | bfd_vma got_displacement; |
6358 | ||
6359 | /* Calculate the displacement between the PLT slot and &GOT[0]. */ | |
6360 | got_displacement = (sgot->output_section->vma | |
6361 | + sgot->output_offset | |
6362 | - splt->output_section->vma | |
6363 | - splt->output_offset | |
6364 | - 16); | |
6365 | ||
f7a74f8c NC |
6366 | bfd_put_32 (output_bfd, elf32_arm_plt0_entry[0], splt->contents + 0); |
6367 | bfd_put_32 (output_bfd, elf32_arm_plt0_entry[1], splt->contents + 4); | |
6368 | bfd_put_32 (output_bfd, elf32_arm_plt0_entry[2], splt->contents + 8); | |
6369 | bfd_put_32 (output_bfd, elf32_arm_plt0_entry[3], splt->contents + 12); | |
5e681ec4 PB |
6370 | #ifdef FOUR_WORD_PLT |
6371 | /* The displacement value goes in the otherwise-unused last word of | |
6372 | the second entry. */ | |
6373 | bfd_put_32 (output_bfd, got_displacement, splt->contents + 28); | |
6374 | #else | |
6375 | bfd_put_32 (output_bfd, got_displacement, splt->contents + 16); | |
6376 | #endif | |
f7a74f8c | 6377 | } |
252b5132 RH |
6378 | |
6379 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
6380 | really seem like the right value. */ | |
6381 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
6382 | } | |
6383 | ||
6384 | /* Fill in the first three entries in the global offset table. */ | |
229fcec5 | 6385 | if (sgot) |
252b5132 | 6386 | { |
229fcec5 MM |
6387 | if (sgot->size > 0) |
6388 | { | |
6389 | if (sdyn == NULL) | |
6390 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
6391 | else | |
6392 | bfd_put_32 (output_bfd, | |
6393 | sdyn->output_section->vma + sdyn->output_offset, | |
6394 | sgot->contents); | |
6395 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
6396 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
6397 | } | |
252b5132 | 6398 | |
229fcec5 MM |
6399 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
6400 | } | |
252b5132 | 6401 | |
b34976b6 | 6402 | return TRUE; |
252b5132 RH |
6403 | } |
6404 | ||
ba96a88f | 6405 | static void |
57e8b36a | 6406 | elf32_arm_post_process_headers (bfd * abfd, struct bfd_link_info * link_info ATTRIBUTE_UNUSED) |
ba96a88f | 6407 | { |
9b485d32 | 6408 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ |
e489d0ae | 6409 | struct elf32_arm_link_hash_table *globals; |
ba96a88f NC |
6410 | |
6411 | i_ehdrp = elf_elfheader (abfd); | |
6412 | ||
94a3258f PB |
6413 | if (EF_ARM_EABI_VERSION (i_ehdrp->e_flags) == EF_ARM_EABI_UNKNOWN) |
6414 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_ARM; | |
6415 | else | |
6416 | i_ehdrp->e_ident[EI_OSABI] = 0; | |
ba96a88f | 6417 | i_ehdrp->e_ident[EI_ABIVERSION] = ARM_ELF_ABI_VERSION; |
e489d0ae | 6418 | |
93204d3a PB |
6419 | if (link_info) |
6420 | { | |
6421 | globals = elf32_arm_hash_table (link_info); | |
6422 | if (globals->byteswap_code) | |
6423 | i_ehdrp->e_flags |= EF_ARM_BE8; | |
6424 | } | |
ba96a88f NC |
6425 | } |
6426 | ||
99e4ae17 | 6427 | static enum elf_reloc_type_class |
57e8b36a | 6428 | elf32_arm_reloc_type_class (const Elf_Internal_Rela *rela) |
99e4ae17 | 6429 | { |
f51e552e | 6430 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
99e4ae17 AJ |
6431 | { |
6432 | case R_ARM_RELATIVE: | |
6433 | return reloc_class_relative; | |
6434 | case R_ARM_JUMP_SLOT: | |
6435 | return reloc_class_plt; | |
6436 | case R_ARM_COPY: | |
6437 | return reloc_class_copy; | |
6438 | default: | |
6439 | return reloc_class_normal; | |
6440 | } | |
6441 | } | |
6442 | ||
e16bb312 NC |
6443 | /* Set the right machine number for an Arm ELF file. */ |
6444 | ||
6445 | static bfd_boolean | |
57e8b36a | 6446 | elf32_arm_section_flags (flagword *flags, const Elf_Internal_Shdr *hdr) |
e16bb312 NC |
6447 | { |
6448 | if (hdr->sh_type == SHT_NOTE) | |
6449 | *flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_CONTENTS; | |
6450 | ||
6451 | return TRUE; | |
6452 | } | |
6453 | ||
e489d0ae | 6454 | static void |
57e8b36a | 6455 | elf32_arm_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) |
e16bb312 | 6456 | { |
5a6c6817 | 6457 | bfd_arm_update_notes (abfd, ARM_NOTE_SECTION); |
e16bb312 NC |
6458 | } |
6459 | ||
40a18ebd NC |
6460 | /* Return TRUE if this is an unwinding table entry. */ |
6461 | ||
6462 | static bfd_boolean | |
6463 | is_arm_elf_unwind_section_name (bfd * abfd ATTRIBUTE_UNUSED, const char * name) | |
6464 | { | |
6465 | size_t len1, len2; | |
6466 | ||
6467 | len1 = sizeof (ELF_STRING_ARM_unwind) - 1; | |
6468 | len2 = sizeof (ELF_STRING_ARM_unwind_once) - 1; | |
6469 | return (strncmp (name, ELF_STRING_ARM_unwind, len1) == 0 | |
6470 | || strncmp (name, ELF_STRING_ARM_unwind_once, len2) == 0); | |
6471 | } | |
6472 | ||
6473 | ||
6474 | /* Set the type and flags for an ARM section. We do this by | |
6475 | the section name, which is a hack, but ought to work. */ | |
6476 | ||
6477 | static bfd_boolean | |
6478 | elf32_arm_fake_sections (bfd * abfd, Elf_Internal_Shdr * hdr, asection * sec) | |
6479 | { | |
6480 | const char * name; | |
6481 | ||
6482 | name = bfd_get_section_name (abfd, sec); | |
6483 | ||
6484 | if (is_arm_elf_unwind_section_name (abfd, name)) | |
6485 | { | |
6486 | hdr->sh_type = SHT_ARM_EXIDX; | |
6487 | hdr->sh_flags |= SHF_LINK_ORDER; | |
6488 | } | |
6489 | return TRUE; | |
6490 | } | |
6491 | ||
6dc132d9 L |
6492 | /* Handle an ARM specific section when reading an object file. This is |
6493 | called when bfd_section_from_shdr finds a section with an unknown | |
6494 | type. */ | |
40a18ebd NC |
6495 | |
6496 | static bfd_boolean | |
6497 | elf32_arm_section_from_shdr (bfd *abfd, | |
6498 | Elf_Internal_Shdr * hdr, | |
6dc132d9 L |
6499 | const char *name, |
6500 | int shindex) | |
40a18ebd NC |
6501 | { |
6502 | /* There ought to be a place to keep ELF backend specific flags, but | |
6503 | at the moment there isn't one. We just keep track of the | |
6504 | sections by their name, instead. Fortunately, the ABI gives | |
6505 | names for all the ARM specific sections, so we will probably get | |
6506 | away with this. */ | |
6507 | switch (hdr->sh_type) | |
6508 | { | |
6509 | case SHT_ARM_EXIDX: | |
6510 | break; | |
6511 | ||
6512 | default: | |
6513 | return FALSE; | |
6514 | } | |
6515 | ||
6dc132d9 | 6516 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
40a18ebd NC |
6517 | return FALSE; |
6518 | ||
6519 | return TRUE; | |
6520 | } | |
e489d0ae | 6521 | |
8e3de13a NC |
6522 | /* A structure used to record a list of sections, independently |
6523 | of the next and prev fields in the asection structure. */ | |
6524 | typedef struct section_list | |
6525 | { | |
6526 | asection * sec; | |
6527 | struct section_list * next; | |
6528 | struct section_list * prev; | |
6529 | } | |
6530 | section_list; | |
6531 | ||
6532 | /* Unfortunately we need to keep a list of sections for which | |
6533 | an _arm_elf_section_data structure has been allocated. This | |
6534 | is because it is possible for functions like elf32_arm_write_section | |
6535 | to be called on a section which has had an elf_data_structure | |
6536 | allocated for it (and so the used_by_bfd field is valid) but | |
6537 | for which the ARM extended version of this structure - the | |
6538 | _arm_elf_section_data structure - has not been allocated. */ | |
6539 | static section_list * sections_with_arm_elf_section_data = NULL; | |
6540 | ||
6541 | static void | |
957c6e41 | 6542 | record_section_with_arm_elf_section_data (asection * sec) |
8e3de13a NC |
6543 | { |
6544 | struct section_list * entry; | |
6545 | ||
957c6e41 | 6546 | entry = bfd_malloc (sizeof (* entry)); |
8e3de13a NC |
6547 | if (entry == NULL) |
6548 | return; | |
6549 | entry->sec = sec; | |
6550 | entry->next = sections_with_arm_elf_section_data; | |
6551 | entry->prev = NULL; | |
6552 | if (entry->next != NULL) | |
6553 | entry->next->prev = entry; | |
6554 | sections_with_arm_elf_section_data = entry; | |
6555 | } | |
6556 | ||
6557 | static _arm_elf_section_data * | |
6558 | get_arm_elf_section_data (asection * sec) | |
6559 | { | |
6560 | struct section_list * entry; | |
6561 | ||
6562 | for (entry = sections_with_arm_elf_section_data; entry; entry = entry->next) | |
6563 | if (entry->sec == sec) | |
6564 | return elf32_arm_section_data (sec); | |
6565 | return NULL; | |
6566 | } | |
6567 | ||
6568 | static void | |
6569 | unrecord_section_with_arm_elf_section_data (asection * sec) | |
6570 | { | |
6571 | struct section_list * entry; | |
6572 | ||
6573 | for (entry = sections_with_arm_elf_section_data; entry; entry = entry->next) | |
6574 | if (entry->sec == sec) | |
6575 | { | |
6576 | if (entry->prev != NULL) | |
6577 | entry->prev->next = entry->next; | |
6578 | if (entry->next != NULL) | |
6579 | entry->next->prev = entry->prev; | |
6580 | if (entry == sections_with_arm_elf_section_data) | |
6581 | sections_with_arm_elf_section_data = entry->next; | |
6582 | free (entry); | |
6583 | break; | |
6584 | } | |
6585 | } | |
6586 | ||
e489d0ae PB |
6587 | /* Called for each symbol. Builds a section map based on mapping symbols. |
6588 | Does not alter any of the symbols. */ | |
6589 | ||
6590 | static bfd_boolean | |
6591 | elf32_arm_output_symbol_hook (struct bfd_link_info *info, | |
6592 | const char *name, | |
6593 | Elf_Internal_Sym *elfsym, | |
6594 | asection *input_sec, | |
6595 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED) | |
6596 | { | |
6597 | int mapcount; | |
6598 | elf32_arm_section_map *map; | |
8e3de13a NC |
6599 | elf32_arm_section_map *newmap; |
6600 | _arm_elf_section_data *arm_data; | |
e489d0ae PB |
6601 | struct elf32_arm_link_hash_table *globals; |
6602 | ||
6603 | /* Only do this on final link. */ | |
6604 | if (info->relocatable) | |
6605 | return TRUE; | |
6606 | ||
6607 | /* Only build a map if we need to byteswap code. */ | |
6608 | globals = elf32_arm_hash_table (info); | |
6609 | if (!globals->byteswap_code) | |
6610 | return TRUE; | |
6611 | ||
6612 | /* We only want mapping symbols. */ | |
05ea83ed | 6613 | if (! bfd_is_arm_mapping_symbol_name (name)) |
e489d0ae PB |
6614 | return TRUE; |
6615 | ||
8e3de13a NC |
6616 | /* If this section has not been allocated an _arm_elf_section_data |
6617 | structure then we cannot record anything. */ | |
6618 | arm_data = get_arm_elf_section_data (input_sec); | |
6619 | if (arm_data == NULL) | |
6620 | return TRUE; | |
6621 | ||
6622 | mapcount = arm_data->mapcount + 1; | |
6623 | map = arm_data->map; | |
e489d0ae PB |
6624 | /* TODO: This may be inefficient, but we probably don't usually have many |
6625 | mapping symbols per section. */ | |
8e3de13a NC |
6626 | newmap = bfd_realloc (map, mapcount * sizeof (* map)); |
6627 | if (newmap != NULL) | |
6628 | { | |
6629 | arm_data->map = newmap; | |
6630 | arm_data->mapcount = mapcount; | |
6631 | ||
6632 | map[mapcount - 1].vma = elfsym->st_value; | |
6633 | map[mapcount - 1].type = name[1]; | |
6634 | } | |
57e8b36a | 6635 | |
e489d0ae PB |
6636 | return TRUE; |
6637 | } | |
6638 | ||
e489d0ae PB |
6639 | /* Allocate target specific section data. */ |
6640 | ||
6641 | static bfd_boolean | |
6642 | elf32_arm_new_section_hook (bfd *abfd, asection *sec) | |
6643 | { | |
8e3de13a | 6644 | _arm_elf_section_data *sdata; |
e489d0ae PB |
6645 | bfd_size_type amt = sizeof (*sdata); |
6646 | ||
6647 | sdata = bfd_zalloc (abfd, amt); | |
6648 | if (sdata == NULL) | |
6649 | return FALSE; | |
6650 | sec->used_by_bfd = sdata; | |
6651 | ||
957c6e41 | 6652 | record_section_with_arm_elf_section_data (sec); |
8e3de13a | 6653 | |
e489d0ae PB |
6654 | return _bfd_elf_new_section_hook (abfd, sec); |
6655 | } | |
6656 | ||
6657 | ||
6658 | /* Used to order a list of mapping symbols by address. */ | |
6659 | ||
6660 | static int | |
6661 | elf32_arm_compare_mapping (const void * a, const void * b) | |
6662 | { | |
6663 | return ((const elf32_arm_section_map *) a)->vma | |
6664 | > ((const elf32_arm_section_map *) b)->vma; | |
6665 | } | |
6666 | ||
6667 | ||
6668 | /* Do code byteswapping. Return FALSE afterwards so that the section is | |
6669 | written out as normal. */ | |
6670 | ||
6671 | static bfd_boolean | |
6672 | elf32_arm_write_section (bfd *output_bfd ATTRIBUTE_UNUSED, asection *sec, | |
6673 | bfd_byte *contents) | |
6674 | { | |
6675 | int mapcount; | |
8e3de13a | 6676 | _arm_elf_section_data *arm_data; |
e489d0ae PB |
6677 | elf32_arm_section_map *map; |
6678 | bfd_vma ptr; | |
6679 | bfd_vma end; | |
6680 | bfd_vma offset; | |
6681 | bfd_byte tmp; | |
6682 | int i; | |
57e8b36a | 6683 | |
8e3de13a NC |
6684 | /* If this section has not been allocated an _arm_elf_section_data |
6685 | structure then we cannot record anything. */ | |
6686 | arm_data = get_arm_elf_section_data (sec); | |
6687 | if (arm_data == NULL) | |
6688 | return FALSE; | |
6689 | ||
6690 | mapcount = arm_data->mapcount; | |
6691 | map = arm_data->map; | |
e489d0ae PB |
6692 | |
6693 | if (mapcount == 0) | |
6694 | return FALSE; | |
6695 | ||
8e3de13a | 6696 | qsort (map, mapcount, sizeof (* map), elf32_arm_compare_mapping); |
e489d0ae PB |
6697 | |
6698 | offset = sec->output_section->vma + sec->output_offset; | |
6699 | ptr = map[0].vma - offset; | |
6700 | for (i = 0; i < mapcount; i++) | |
6701 | { | |
6702 | if (i == mapcount - 1) | |
eea6121a | 6703 | end = sec->size; |
e489d0ae PB |
6704 | else |
6705 | end = map[i + 1].vma - offset; | |
57e8b36a | 6706 | |
e489d0ae PB |
6707 | switch (map[i].type) |
6708 | { | |
6709 | case 'a': | |
6710 | /* Byte swap code words. */ | |
6711 | while (ptr + 3 < end) | |
6712 | { | |
6713 | tmp = contents[ptr]; | |
6714 | contents[ptr] = contents[ptr + 3]; | |
6715 | contents[ptr + 3] = tmp; | |
6716 | tmp = contents[ptr + 1]; | |
6717 | contents[ptr + 1] = contents[ptr + 2]; | |
6718 | contents[ptr + 2] = tmp; | |
6719 | ptr += 4; | |
6720 | } | |
6721 | break; | |
6722 | ||
6723 | case 't': | |
6724 | /* Byte swap code halfwords. */ | |
6725 | while (ptr + 1 < end) | |
6726 | { | |
6727 | tmp = contents[ptr]; | |
6728 | contents[ptr] = contents[ptr + 1]; | |
6729 | contents[ptr + 1] = tmp; | |
6730 | ptr += 2; | |
6731 | } | |
6732 | break; | |
6733 | ||
6734 | case 'd': | |
6735 | /* Leave data alone. */ | |
6736 | break; | |
6737 | } | |
6738 | ptr = end; | |
6739 | } | |
8e3de13a | 6740 | |
93204d3a | 6741 | free (map); |
8e3de13a NC |
6742 | arm_data->mapcount = 0; |
6743 | arm_data->map = NULL; | |
6744 | unrecord_section_with_arm_elf_section_data (sec); | |
6745 | ||
e489d0ae PB |
6746 | return FALSE; |
6747 | } | |
6748 | ||
957c6e41 NC |
6749 | static void |
6750 | unrecord_section_via_map_over_sections (bfd * abfd ATTRIBUTE_UNUSED, | |
6751 | asection * sec, | |
6752 | void * ignore ATTRIBUTE_UNUSED) | |
6753 | { | |
6754 | unrecord_section_with_arm_elf_section_data (sec); | |
6755 | } | |
6756 | ||
6757 | static bfd_boolean | |
6758 | elf32_arm_close_and_cleanup (bfd * abfd) | |
6759 | { | |
6760 | bfd_map_over_sections (abfd, unrecord_section_via_map_over_sections, NULL); | |
6761 | ||
6762 | return _bfd_elf_close_and_cleanup (abfd); | |
6763 | } | |
6764 | ||
b7693d02 DJ |
6765 | /* Display STT_ARM_TFUNC symbols as functions. */ |
6766 | ||
6767 | static void | |
6768 | elf32_arm_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, | |
6769 | asymbol *asym) | |
6770 | { | |
6771 | elf_symbol_type *elfsym = (elf_symbol_type *) asym; | |
6772 | ||
6773 | if (ELF_ST_TYPE (elfsym->internal_elf_sym.st_info) == STT_ARM_TFUNC) | |
6774 | elfsym->symbol.flags |= BSF_FUNCTION; | |
6775 | } | |
6776 | ||
0beaef2b PB |
6777 | |
6778 | /* Mangle thumb function symbols as we read them in. */ | |
6779 | ||
6780 | static void | |
6781 | elf32_arm_swap_symbol_in (bfd * abfd, | |
6782 | const void *psrc, | |
6783 | const void *pshn, | |
6784 | Elf_Internal_Sym *dst) | |
6785 | { | |
6786 | bfd_elf32_swap_symbol_in (abfd, psrc, pshn, dst); | |
6787 | ||
6788 | /* New EABI objects mark thumb function symbols by setting the low bit of | |
6789 | the address. Turn these into STT_ARM_TFUNC. */ | |
6790 | if (ELF_ST_TYPE (dst->st_info) == STT_FUNC | |
6791 | && (dst->st_value & 1)) | |
6792 | { | |
6793 | dst->st_info = ELF_ST_INFO (ELF_ST_BIND (dst->st_info), STT_ARM_TFUNC); | |
6794 | dst->st_value &= ~(bfd_vma) 1; | |
6795 | } | |
6796 | } | |
6797 | ||
6798 | ||
6799 | /* Mangle thumb function symbols as we write them out. */ | |
6800 | ||
6801 | static void | |
6802 | elf32_arm_swap_symbol_out (bfd *abfd, | |
6803 | const Elf_Internal_Sym *src, | |
6804 | void *cdst, | |
6805 | void *shndx) | |
6806 | { | |
6807 | Elf_Internal_Sym newsym; | |
6808 | ||
6809 | /* We convert STT_ARM_TFUNC symbols into STT_FUNC with the low bit | |
6810 | of the address set, as per the new EABI. We do this unconditionally | |
6811 | because objcopy does not set the elf header flags until after | |
6812 | it writes out the symbol table. */ | |
6813 | if (ELF_ST_TYPE (src->st_info) == STT_ARM_TFUNC) | |
6814 | { | |
6815 | newsym = *src; | |
6816 | newsym.st_info = ELF_ST_INFO (ELF_ST_BIND (src->st_info), STT_FUNC); | |
6817 | newsym.st_value |= 1; | |
6818 | ||
6819 | src = &newsym; | |
6820 | } | |
6821 | bfd_elf32_swap_symbol_out (abfd, src, cdst, shndx); | |
6822 | } | |
6823 | ||
b294bdf8 MM |
6824 | /* Add the PT_ARM_EXIDX program header. */ |
6825 | ||
6826 | static bfd_boolean | |
6827 | elf32_arm_modify_segment_map (bfd *abfd, | |
6828 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
6829 | { | |
6830 | struct elf_segment_map *m; | |
6831 | asection *sec; | |
6832 | ||
6833 | sec = bfd_get_section_by_name (abfd, ".ARM.exidx"); | |
6834 | if (sec != NULL && (sec->flags & SEC_LOAD) != 0) | |
6835 | { | |
6836 | /* If there is already a PT_ARM_EXIDX header, then we do not | |
6837 | want to add another one. This situation arises when running | |
6838 | "strip"; the input binary already has the header. */ | |
6839 | m = elf_tdata (abfd)->segment_map; | |
6840 | while (m && m->p_type != PT_ARM_EXIDX) | |
6841 | m = m->next; | |
6842 | if (!m) | |
6843 | { | |
6844 | m = bfd_zalloc (abfd, sizeof (struct elf_segment_map)); | |
6845 | if (m == NULL) | |
6846 | return FALSE; | |
6847 | m->p_type = PT_ARM_EXIDX; | |
6848 | m->count = 1; | |
6849 | m->sections[0] = sec; | |
6850 | ||
6851 | m->next = elf_tdata (abfd)->segment_map; | |
6852 | elf_tdata (abfd)->segment_map = m; | |
6853 | } | |
6854 | } | |
6855 | ||
6856 | return TRUE; | |
6857 | } | |
6858 | ||
6859 | /* We may add a PT_ARM_EXIDX program header. */ | |
6860 | ||
6861 | static int | |
6862 | elf32_arm_additional_program_headers (bfd *abfd) | |
6863 | { | |
6864 | asection *sec; | |
6865 | ||
6866 | sec = bfd_get_section_by_name (abfd, ".ARM.exidx"); | |
6867 | if (sec != NULL && (sec->flags & SEC_LOAD) != 0) | |
6868 | return 1; | |
6869 | else | |
6870 | return 0; | |
6871 | } | |
6872 | ||
0beaef2b PB |
6873 | /* We use this to override swap_symbol_in and swap_symbol_out. */ |
6874 | const struct elf_size_info elf32_arm_size_info = { | |
6875 | sizeof (Elf32_External_Ehdr), | |
6876 | sizeof (Elf32_External_Phdr), | |
6877 | sizeof (Elf32_External_Shdr), | |
6878 | sizeof (Elf32_External_Rel), | |
6879 | sizeof (Elf32_External_Rela), | |
6880 | sizeof (Elf32_External_Sym), | |
6881 | sizeof (Elf32_External_Dyn), | |
6882 | sizeof (Elf_External_Note), | |
6883 | 4, | |
6884 | 1, | |
6885 | 32, 2, | |
6886 | ELFCLASS32, EV_CURRENT, | |
6887 | bfd_elf32_write_out_phdrs, | |
6888 | bfd_elf32_write_shdrs_and_ehdr, | |
6889 | bfd_elf32_write_relocs, | |
6890 | elf32_arm_swap_symbol_in, | |
6891 | elf32_arm_swap_symbol_out, | |
6892 | bfd_elf32_slurp_reloc_table, | |
6893 | bfd_elf32_slurp_symbol_table, | |
6894 | bfd_elf32_swap_dyn_in, | |
6895 | bfd_elf32_swap_dyn_out, | |
6896 | bfd_elf32_swap_reloc_in, | |
6897 | bfd_elf32_swap_reloc_out, | |
6898 | bfd_elf32_swap_reloca_in, | |
6899 | bfd_elf32_swap_reloca_out | |
6900 | }; | |
6901 | ||
252b5132 RH |
6902 | #define ELF_ARCH bfd_arch_arm |
6903 | #define ELF_MACHINE_CODE EM_ARM | |
d0facd1b NC |
6904 | #ifdef __QNXTARGET__ |
6905 | #define ELF_MAXPAGESIZE 0x1000 | |
6906 | #else | |
f21f3fe0 | 6907 | #define ELF_MAXPAGESIZE 0x8000 |
d0facd1b | 6908 | #endif |
b1342370 | 6909 | #define ELF_MINPAGESIZE 0x1000 |
252b5132 | 6910 | |
ba93b8ac DJ |
6911 | #define bfd_elf32_mkobject elf32_arm_mkobject |
6912 | ||
99e4ae17 AJ |
6913 | #define bfd_elf32_bfd_copy_private_bfd_data elf32_arm_copy_private_bfd_data |
6914 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_arm_merge_private_bfd_data | |
252b5132 RH |
6915 | #define bfd_elf32_bfd_set_private_flags elf32_arm_set_private_flags |
6916 | #define bfd_elf32_bfd_print_private_bfd_data elf32_arm_print_private_bfd_data | |
6917 | #define bfd_elf32_bfd_link_hash_table_create elf32_arm_link_hash_table_create | |
dc810e39 | 6918 | #define bfd_elf32_bfd_reloc_type_lookup elf32_arm_reloc_type_lookup |
252b5132 | 6919 | #define bfd_elf32_find_nearest_line elf32_arm_find_nearest_line |
4ab527b0 | 6920 | #define bfd_elf32_find_inliner_info elf32_arm_find_inliner_info |
e489d0ae | 6921 | #define bfd_elf32_new_section_hook elf32_arm_new_section_hook |
3c9458e9 | 6922 | #define bfd_elf32_bfd_is_target_special_symbol elf32_arm_is_target_special_symbol |
957c6e41 | 6923 | #define bfd_elf32_close_and_cleanup elf32_arm_close_and_cleanup |
252b5132 RH |
6924 | |
6925 | #define elf_backend_get_symbol_type elf32_arm_get_symbol_type | |
6926 | #define elf_backend_gc_mark_hook elf32_arm_gc_mark_hook | |
6927 | #define elf_backend_gc_sweep_hook elf32_arm_gc_sweep_hook | |
6928 | #define elf_backend_check_relocs elf32_arm_check_relocs | |
dc810e39 | 6929 | #define elf_backend_relocate_section elf32_arm_relocate_section |
e489d0ae | 6930 | #define elf_backend_write_section elf32_arm_write_section |
252b5132 | 6931 | #define elf_backend_adjust_dynamic_symbol elf32_arm_adjust_dynamic_symbol |
5e681ec4 | 6932 | #define elf_backend_create_dynamic_sections elf32_arm_create_dynamic_sections |
252b5132 RH |
6933 | #define elf_backend_finish_dynamic_symbol elf32_arm_finish_dynamic_symbol |
6934 | #define elf_backend_finish_dynamic_sections elf32_arm_finish_dynamic_sections | |
e489d0ae | 6935 | #define elf_backend_link_output_symbol_hook elf32_arm_output_symbol_hook |
252b5132 | 6936 | #define elf_backend_size_dynamic_sections elf32_arm_size_dynamic_sections |
ba96a88f | 6937 | #define elf_backend_post_process_headers elf32_arm_post_process_headers |
99e4ae17 | 6938 | #define elf_backend_reloc_type_class elf32_arm_reloc_type_class |
c178919b | 6939 | #define elf_backend_object_p elf32_arm_object_p |
e16bb312 | 6940 | #define elf_backend_section_flags elf32_arm_section_flags |
40a18ebd NC |
6941 | #define elf_backend_fake_sections elf32_arm_fake_sections |
6942 | #define elf_backend_section_from_shdr elf32_arm_section_from_shdr | |
e16bb312 | 6943 | #define elf_backend_final_write_processing elf32_arm_final_write_processing |
5e681ec4 | 6944 | #define elf_backend_copy_indirect_symbol elf32_arm_copy_indirect_symbol |
b7693d02 | 6945 | #define elf_backend_symbol_processing elf32_arm_symbol_processing |
0beaef2b | 6946 | #define elf_backend_size_info elf32_arm_size_info |
b294bdf8 MM |
6947 | #define elf_backend_modify_segment_map elf32_arm_modify_segment_map |
6948 | #define elf_backend_additional_program_headers \ | |
6949 | elf32_arm_additional_program_headers | |
252b5132 | 6950 | |
5e681ec4 | 6951 | #define elf_backend_can_refcount 1 |
252b5132 RH |
6952 | #define elf_backend_can_gc_sections 1 |
6953 | #define elf_backend_plt_readonly 1 | |
6954 | #define elf_backend_want_got_plt 1 | |
6955 | #define elf_backend_want_plt_sym 0 | |
4e7fd91e PB |
6956 | #define elf_backend_may_use_rel_p 1 |
6957 | #define elf_backend_may_use_rela_p 0 | |
6958 | #define elf_backend_default_use_rela_p 0 | |
6959 | #define elf_backend_rela_normal 0 | |
252b5132 | 6960 | |
04f7c78d | 6961 | #define elf_backend_got_header_size 12 |
04f7c78d | 6962 | |
252b5132 | 6963 | #include "elf32-target.h" |
7f266840 | 6964 | |
4e7fd91e PB |
6965 | /* VxWorks Targets */ |
6966 | ||
6967 | #undef TARGET_LITTLE_SYM | |
6968 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_vxworks_vec | |
6969 | #undef TARGET_LITTLE_NAME | |
6970 | #define TARGET_LITTLE_NAME "elf32-littlearm-vxworks" | |
6971 | #undef TARGET_BIG_SYM | |
6972 | #define TARGET_BIG_SYM bfd_elf32_bigarm_vxworks_vec | |
6973 | #undef TARGET_BIG_NAME | |
6974 | #define TARGET_BIG_NAME "elf32-bigarm-vxworks" | |
6975 | ||
6976 | /* Like elf32_arm_link_hash_table_create -- but overrides | |
6977 | appropriately for VxWorks. */ | |
6978 | static struct bfd_link_hash_table * | |
6979 | elf32_arm_vxworks_link_hash_table_create (bfd *abfd) | |
6980 | { | |
6981 | struct bfd_link_hash_table *ret; | |
6982 | ||
6983 | ret = elf32_arm_link_hash_table_create (abfd); | |
6984 | if (ret) | |
6985 | { | |
6986 | struct elf32_arm_link_hash_table *htab | |
6987 | = (struct elf32_arm_link_hash_table *)ret; | |
6988 | htab->use_rel = 0; | |
6989 | } | |
6990 | return ret; | |
6991 | } | |
6992 | ||
6993 | #undef elf32_bed | |
6994 | #define elf32_bed elf32_arm_vxworks_bed | |
6995 | ||
6996 | #undef bfd_elf32_bfd_link_hash_table_create | |
6997 | #define bfd_elf32_bfd_link_hash_table_create \ | |
6998 | elf32_arm_vxworks_link_hash_table_create | |
6999 | ||
7000 | #undef elf_backend_may_use_rel_p | |
7001 | #define elf_backend_may_use_rel_p 0 | |
7002 | #undef elf_backend_may_use_rela_p | |
7003 | #define elf_backend_may_use_rela_p 1 | |
7004 | #undef elf_backend_default_use_rela_p | |
7005 | #define elf_backend_default_use_rela_p 1 | |
7006 | #undef elf_backend_rela_normal | |
7007 | #define elf_backend_rela_normal 1 | |
7008 | ||
7009 | #include "elf32-target.h" | |
7010 | ||
7011 | ||
7f266840 DJ |
7012 | /* Symbian OS Targets */ |
7013 | ||
7014 | #undef TARGET_LITTLE_SYM | |
7015 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_symbian_vec | |
7016 | #undef TARGET_LITTLE_NAME | |
7017 | #define TARGET_LITTLE_NAME "elf32-littlearm-symbian" | |
7018 | #undef TARGET_BIG_SYM | |
7019 | #define TARGET_BIG_SYM bfd_elf32_bigarm_symbian_vec | |
7020 | #undef TARGET_BIG_NAME | |
7021 | #define TARGET_BIG_NAME "elf32-bigarm-symbian" | |
7022 | ||
7023 | /* Like elf32_arm_link_hash_table_create -- but overrides | |
7024 | appropriately for Symbian OS. */ | |
7025 | static struct bfd_link_hash_table * | |
7026 | elf32_arm_symbian_link_hash_table_create (bfd *abfd) | |
7027 | { | |
7028 | struct bfd_link_hash_table *ret; | |
7029 | ||
7030 | ret = elf32_arm_link_hash_table_create (abfd); | |
7031 | if (ret) | |
7032 | { | |
7033 | struct elf32_arm_link_hash_table *htab | |
7034 | = (struct elf32_arm_link_hash_table *)ret; | |
7035 | /* There is no PLT header for Symbian OS. */ | |
7036 | htab->plt_header_size = 0; | |
7037 | /* The PLT entries are each three instructions. */ | |
7038 | htab->plt_entry_size = 4 * NUM_ELEM (elf32_arm_symbian_plt_entry); | |
7039 | htab->symbian_p = 1; | |
33bfe774 JB |
7040 | /* Symbian uses armv5t or above, so use_blx is always true. */ |
7041 | htab->use_blx = 1; | |
67687978 | 7042 | htab->root.is_relocatable_executable = 1; |
7f266840 DJ |
7043 | } |
7044 | return ret; | |
7045 | } | |
7046 | ||
b35d266b | 7047 | static const struct bfd_elf_special_section |
551b43fd | 7048 | elf32_arm_symbian_special_sections[] = |
7f266840 | 7049 | { |
5cd3778d MM |
7050 | /* In a BPABI executable, the dynamic linking sections do not go in |
7051 | the loadable read-only segment. The post-linker may wish to | |
7052 | refer to these sections, but they are not part of the final | |
7053 | program image. */ | |
7f266840 DJ |
7054 | { ".dynamic", 8, 0, SHT_DYNAMIC, 0 }, |
7055 | { ".dynstr", 7, 0, SHT_STRTAB, 0 }, | |
7056 | { ".dynsym", 7, 0, SHT_DYNSYM, 0 }, | |
7057 | { ".got", 4, 0, SHT_PROGBITS, 0 }, | |
7058 | { ".hash", 5, 0, SHT_HASH, 0 }, | |
5cd3778d MM |
7059 | /* These sections do not need to be writable as the SymbianOS |
7060 | postlinker will arrange things so that no dynamic relocation is | |
7061 | required. */ | |
7062 | { ".init_array", 11, 0, SHT_INIT_ARRAY, SHF_ALLOC }, | |
7063 | { ".fini_array", 11, 0, SHT_FINI_ARRAY, SHF_ALLOC }, | |
7064 | { ".preinit_array", 14, 0, SHT_PREINIT_ARRAY, SHF_ALLOC }, | |
7f266840 DJ |
7065 | { NULL, 0, 0, 0, 0 } |
7066 | }; | |
7067 | ||
c3c76620 | 7068 | static void |
b34af79c MM |
7069 | elf32_arm_symbian_begin_write_processing (bfd *abfd, |
7070 | struct bfd_link_info *link_info | |
7071 | ATTRIBUTE_UNUSED) | |
c3c76620 MM |
7072 | { |
7073 | /* BPABI objects are never loaded directly by an OS kernel; they are | |
7074 | processed by a postlinker first, into an OS-specific format. If | |
7075 | the D_PAGED bit is set on the file, BFD will align segments on | |
7076 | page boundaries, so that an OS can directly map the file. With | |
7077 | BPABI objects, that just results in wasted space. In addition, | |
7078 | because we clear the D_PAGED bit, map_sections_to_segments will | |
7079 | recognize that the program headers should not be mapped into any | |
7080 | loadable segment. */ | |
7081 | abfd->flags &= ~D_PAGED; | |
7082 | } | |
7f266840 DJ |
7083 | |
7084 | static bfd_boolean | |
b34af79c | 7085 | elf32_arm_symbian_modify_segment_map (bfd *abfd, |
b294bdf8 | 7086 | struct bfd_link_info *info) |
7f266840 DJ |
7087 | { |
7088 | struct elf_segment_map *m; | |
7089 | asection *dynsec; | |
7090 | ||
7f266840 DJ |
7091 | /* BPABI shared libraries and executables should have a PT_DYNAMIC |
7092 | segment. However, because the .dynamic section is not marked | |
7093 | with SEC_LOAD, the generic ELF code will not create such a | |
7094 | segment. */ | |
7095 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
7096 | if (dynsec) | |
7097 | { | |
7098 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
7099 | m->next = elf_tdata (abfd)->segment_map; | |
7100 | elf_tdata (abfd)->segment_map = m; | |
7101 | } | |
7102 | ||
b294bdf8 MM |
7103 | /* Also call the generic arm routine. */ |
7104 | return elf32_arm_modify_segment_map (abfd, info); | |
7f266840 DJ |
7105 | } |
7106 | ||
7107 | #undef elf32_bed | |
7108 | #define elf32_bed elf32_arm_symbian_bed | |
7109 | ||
7110 | /* The dynamic sections are not allocated on SymbianOS; the postlinker | |
7111 | will process them and then discard them. */ | |
7112 | #undef ELF_DYNAMIC_SEC_FLAGS | |
7113 | #define ELF_DYNAMIC_SEC_FLAGS \ | |
7114 | (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED) | |
7115 | ||
7116 | #undef bfd_elf32_bfd_link_hash_table_create | |
7117 | #define bfd_elf32_bfd_link_hash_table_create \ | |
7118 | elf32_arm_symbian_link_hash_table_create | |
7119 | ||
29ef7005 L |
7120 | #undef elf_backend_special_sections |
7121 | #define elf_backend_special_sections elf32_arm_symbian_special_sections | |
7f266840 | 7122 | |
c3c76620 MM |
7123 | #undef elf_backend_begin_write_processing |
7124 | #define elf_backend_begin_write_processing \ | |
7125 | elf32_arm_symbian_begin_write_processing | |
7126 | ||
7f266840 DJ |
7127 | #undef elf_backend_modify_segment_map |
7128 | #define elf_backend_modify_segment_map elf32_arm_symbian_modify_segment_map | |
7129 | ||
7130 | /* There is no .got section for BPABI objects, and hence no header. */ | |
7131 | #undef elf_backend_got_header_size | |
7132 | #define elf_backend_got_header_size 0 | |
7133 | ||
7134 | /* Similarly, there is no .got.plt section. */ | |
7135 | #undef elf_backend_want_got_plt | |
7136 | #define elf_backend_want_got_plt 0 | |
7137 | ||
4e7fd91e PB |
7138 | #undef elf_backend_may_use_rel_p |
7139 | #define elf_backend_may_use_rel_p 1 | |
7140 | #undef elf_backend_may_use_rela_p | |
7141 | #define elf_backend_may_use_rela_p 0 | |
7142 | #undef elf_backend_default_use_rela_p | |
dc4c9c19 | 7143 | #define elf_backend_default_use_rela_p 0 |
4e7fd91e PB |
7144 | #undef elf_backend_rela_normal |
7145 | #define elf_backend_rela_normal 0 | |
7146 | ||
7f266840 | 7147 | #include "elf32-target.h" |