Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* 32-bit ELF support for ARM |
ab96bf03 | 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
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 "bfd.h" |
22 | #include "sysdep.h" | |
00a97672 | 23 | #include "libiberty.h" |
7f266840 DJ |
24 | #include "libbfd.h" |
25 | #include "elf-bfd.h" | |
00a97672 | 26 | #include "elf-vxworks.h" |
ee065d83 | 27 | #include "elf/arm.h" |
7f266840 DJ |
28 | |
29 | #ifndef NUM_ELEM | |
30 | #define NUM_ELEM(a) (sizeof (a) / (sizeof (a)[0])) | |
31 | #endif | |
32 | ||
00a97672 RS |
33 | /* Return the relocation section associated with NAME. HTAB is the |
34 | bfd's elf32_arm_link_hash_entry. */ | |
35 | #define RELOC_SECTION(HTAB, NAME) \ | |
36 | ((HTAB)->use_rel ? ".rel" NAME : ".rela" NAME) | |
37 | ||
38 | /* Return size of a relocation entry. HTAB is the bfd's | |
39 | elf32_arm_link_hash_entry. */ | |
40 | #define RELOC_SIZE(HTAB) \ | |
41 | ((HTAB)->use_rel \ | |
42 | ? sizeof (Elf32_External_Rel) \ | |
43 | : sizeof (Elf32_External_Rela)) | |
44 | ||
45 | /* Return function to swap relocations in. HTAB is the bfd's | |
46 | elf32_arm_link_hash_entry. */ | |
47 | #define SWAP_RELOC_IN(HTAB) \ | |
48 | ((HTAB)->use_rel \ | |
49 | ? bfd_elf32_swap_reloc_in \ | |
50 | : bfd_elf32_swap_reloca_in) | |
51 | ||
52 | /* Return function to swap relocations out. HTAB is the bfd's | |
53 | elf32_arm_link_hash_entry. */ | |
54 | #define SWAP_RELOC_OUT(HTAB) \ | |
55 | ((HTAB)->use_rel \ | |
56 | ? bfd_elf32_swap_reloc_out \ | |
57 | : bfd_elf32_swap_reloca_out) | |
58 | ||
7f266840 DJ |
59 | #define elf_info_to_howto 0 |
60 | #define elf_info_to_howto_rel elf32_arm_info_to_howto | |
61 | ||
62 | #define ARM_ELF_ABI_VERSION 0 | |
63 | #define ARM_ELF_OS_ABI_VERSION ELFOSABI_ARM | |
64 | ||
24718e3b | 65 | static struct elf_backend_data elf32_arm_vxworks_bed; |
00a97672 | 66 | |
7f266840 DJ |
67 | /* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g. |
68 | R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO | |
69 | in that slot. */ | |
70 | ||
c19d1205 | 71 | static reloc_howto_type elf32_arm_howto_table_1[] = |
7f266840 DJ |
72 | { |
73 | /* No relocation */ | |
74 | HOWTO (R_ARM_NONE, /* type */ | |
75 | 0, /* rightshift */ | |
76 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
77 | 0, /* bitsize */ | |
78 | FALSE, /* pc_relative */ | |
79 | 0, /* bitpos */ | |
80 | complain_overflow_dont,/* complain_on_overflow */ | |
81 | bfd_elf_generic_reloc, /* special_function */ | |
82 | "R_ARM_NONE", /* name */ | |
83 | FALSE, /* partial_inplace */ | |
84 | 0, /* src_mask */ | |
85 | 0, /* dst_mask */ | |
86 | FALSE), /* pcrel_offset */ | |
87 | ||
88 | HOWTO (R_ARM_PC24, /* type */ | |
89 | 2, /* rightshift */ | |
90 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
91 | 24, /* bitsize */ | |
92 | TRUE, /* pc_relative */ | |
93 | 0, /* bitpos */ | |
94 | complain_overflow_signed,/* complain_on_overflow */ | |
95 | bfd_elf_generic_reloc, /* special_function */ | |
96 | "R_ARM_PC24", /* name */ | |
97 | FALSE, /* partial_inplace */ | |
98 | 0x00ffffff, /* src_mask */ | |
99 | 0x00ffffff, /* dst_mask */ | |
100 | TRUE), /* pcrel_offset */ | |
101 | ||
102 | /* 32 bit absolute */ | |
103 | HOWTO (R_ARM_ABS32, /* type */ | |
104 | 0, /* rightshift */ | |
105 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
106 | 32, /* 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_ABS32", /* name */ | |
112 | FALSE, /* partial_inplace */ | |
113 | 0xffffffff, /* src_mask */ | |
114 | 0xffffffff, /* dst_mask */ | |
115 | FALSE), /* pcrel_offset */ | |
116 | ||
117 | /* standard 32bit pc-relative reloc */ | |
118 | HOWTO (R_ARM_REL32, /* type */ | |
119 | 0, /* rightshift */ | |
120 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
121 | 32, /* bitsize */ | |
122 | TRUE, /* pc_relative */ | |
123 | 0, /* bitpos */ | |
124 | complain_overflow_bitfield,/* complain_on_overflow */ | |
125 | bfd_elf_generic_reloc, /* special_function */ | |
126 | "R_ARM_REL32", /* name */ | |
127 | FALSE, /* partial_inplace */ | |
128 | 0xffffffff, /* src_mask */ | |
129 | 0xffffffff, /* dst_mask */ | |
130 | TRUE), /* pcrel_offset */ | |
131 | ||
c19d1205 | 132 | /* 8 bit absolute - R_ARM_LDR_PC_G0 in AAELF */ |
4962c51a | 133 | HOWTO (R_ARM_LDR_PC_G0, /* type */ |
7f266840 DJ |
134 | 0, /* rightshift */ |
135 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
4962c51a MS |
136 | 32, /* bitsize */ |
137 | TRUE, /* pc_relative */ | |
7f266840 | 138 | 0, /* bitpos */ |
4962c51a | 139 | complain_overflow_dont,/* complain_on_overflow */ |
7f266840 | 140 | bfd_elf_generic_reloc, /* special_function */ |
4962c51a | 141 | "R_ARM_LDR_PC_G0", /* name */ |
7f266840 | 142 | FALSE, /* partial_inplace */ |
4962c51a MS |
143 | 0xffffffff, /* src_mask */ |
144 | 0xffffffff, /* dst_mask */ | |
145 | TRUE), /* pcrel_offset */ | |
7f266840 DJ |
146 | |
147 | /* 16 bit absolute */ | |
148 | HOWTO (R_ARM_ABS16, /* type */ | |
149 | 0, /* rightshift */ | |
150 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
151 | 16, /* bitsize */ | |
152 | FALSE, /* pc_relative */ | |
153 | 0, /* bitpos */ | |
154 | complain_overflow_bitfield,/* complain_on_overflow */ | |
155 | bfd_elf_generic_reloc, /* special_function */ | |
156 | "R_ARM_ABS16", /* name */ | |
157 | FALSE, /* partial_inplace */ | |
158 | 0x0000ffff, /* src_mask */ | |
159 | 0x0000ffff, /* dst_mask */ | |
160 | FALSE), /* pcrel_offset */ | |
161 | ||
162 | /* 12 bit absolute */ | |
163 | HOWTO (R_ARM_ABS12, /* type */ | |
164 | 0, /* rightshift */ | |
165 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
166 | 12, /* bitsize */ | |
167 | FALSE, /* pc_relative */ | |
168 | 0, /* bitpos */ | |
169 | complain_overflow_bitfield,/* complain_on_overflow */ | |
170 | bfd_elf_generic_reloc, /* special_function */ | |
171 | "R_ARM_ABS12", /* name */ | |
172 | FALSE, /* partial_inplace */ | |
00a97672 RS |
173 | 0x00000fff, /* src_mask */ |
174 | 0x00000fff, /* dst_mask */ | |
7f266840 DJ |
175 | FALSE), /* pcrel_offset */ |
176 | ||
177 | HOWTO (R_ARM_THM_ABS5, /* type */ | |
178 | 6, /* rightshift */ | |
179 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
180 | 5, /* bitsize */ | |
181 | FALSE, /* pc_relative */ | |
182 | 0, /* bitpos */ | |
183 | complain_overflow_bitfield,/* complain_on_overflow */ | |
184 | bfd_elf_generic_reloc, /* special_function */ | |
185 | "R_ARM_THM_ABS5", /* name */ | |
186 | FALSE, /* partial_inplace */ | |
187 | 0x000007e0, /* src_mask */ | |
188 | 0x000007e0, /* dst_mask */ | |
189 | FALSE), /* pcrel_offset */ | |
190 | ||
191 | /* 8 bit absolute */ | |
192 | HOWTO (R_ARM_ABS8, /* type */ | |
193 | 0, /* rightshift */ | |
194 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
195 | 8, /* bitsize */ | |
196 | FALSE, /* pc_relative */ | |
197 | 0, /* bitpos */ | |
198 | complain_overflow_bitfield,/* complain_on_overflow */ | |
199 | bfd_elf_generic_reloc, /* special_function */ | |
200 | "R_ARM_ABS8", /* name */ | |
201 | FALSE, /* partial_inplace */ | |
202 | 0x000000ff, /* src_mask */ | |
203 | 0x000000ff, /* dst_mask */ | |
204 | FALSE), /* pcrel_offset */ | |
205 | ||
206 | HOWTO (R_ARM_SBREL32, /* type */ | |
207 | 0, /* rightshift */ | |
208 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
209 | 32, /* bitsize */ | |
210 | FALSE, /* pc_relative */ | |
211 | 0, /* bitpos */ | |
212 | complain_overflow_dont,/* complain_on_overflow */ | |
213 | bfd_elf_generic_reloc, /* special_function */ | |
214 | "R_ARM_SBREL32", /* name */ | |
215 | FALSE, /* partial_inplace */ | |
216 | 0xffffffff, /* src_mask */ | |
217 | 0xffffffff, /* dst_mask */ | |
218 | FALSE), /* pcrel_offset */ | |
219 | ||
c19d1205 | 220 | HOWTO (R_ARM_THM_CALL, /* type */ |
7f266840 DJ |
221 | 1, /* rightshift */ |
222 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
e95de063 | 223 | 25, /* bitsize */ |
7f266840 DJ |
224 | TRUE, /* pc_relative */ |
225 | 0, /* bitpos */ | |
226 | complain_overflow_signed,/* complain_on_overflow */ | |
227 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 228 | "R_ARM_THM_CALL", /* name */ |
7f266840 DJ |
229 | FALSE, /* partial_inplace */ |
230 | 0x07ff07ff, /* src_mask */ | |
231 | 0x07ff07ff, /* dst_mask */ | |
232 | TRUE), /* pcrel_offset */ | |
233 | ||
234 | HOWTO (R_ARM_THM_PC8, /* type */ | |
235 | 1, /* rightshift */ | |
236 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
237 | 8, /* bitsize */ | |
238 | TRUE, /* pc_relative */ | |
239 | 0, /* bitpos */ | |
240 | complain_overflow_signed,/* complain_on_overflow */ | |
241 | bfd_elf_generic_reloc, /* special_function */ | |
242 | "R_ARM_THM_PC8", /* name */ | |
243 | FALSE, /* partial_inplace */ | |
244 | 0x000000ff, /* src_mask */ | |
245 | 0x000000ff, /* dst_mask */ | |
246 | TRUE), /* pcrel_offset */ | |
247 | ||
c19d1205 | 248 | HOWTO (R_ARM_BREL_ADJ, /* type */ |
7f266840 DJ |
249 | 1, /* rightshift */ |
250 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
c19d1205 ZW |
251 | 32, /* bitsize */ |
252 | FALSE, /* pc_relative */ | |
7f266840 DJ |
253 | 0, /* bitpos */ |
254 | complain_overflow_signed,/* complain_on_overflow */ | |
255 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 256 | "R_ARM_BREL_ADJ", /* name */ |
7f266840 | 257 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
258 | 0xffffffff, /* src_mask */ |
259 | 0xffffffff, /* dst_mask */ | |
260 | FALSE), /* pcrel_offset */ | |
7f266840 DJ |
261 | |
262 | HOWTO (R_ARM_SWI24, /* type */ | |
263 | 0, /* rightshift */ | |
264 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
265 | 0, /* bitsize */ | |
266 | FALSE, /* pc_relative */ | |
267 | 0, /* bitpos */ | |
268 | complain_overflow_signed,/* complain_on_overflow */ | |
269 | bfd_elf_generic_reloc, /* special_function */ | |
270 | "R_ARM_SWI24", /* name */ | |
271 | FALSE, /* partial_inplace */ | |
272 | 0x00000000, /* src_mask */ | |
273 | 0x00000000, /* dst_mask */ | |
274 | FALSE), /* pcrel_offset */ | |
275 | ||
276 | HOWTO (R_ARM_THM_SWI8, /* type */ | |
277 | 0, /* rightshift */ | |
278 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
279 | 0, /* bitsize */ | |
280 | FALSE, /* pc_relative */ | |
281 | 0, /* bitpos */ | |
282 | complain_overflow_signed,/* complain_on_overflow */ | |
283 | bfd_elf_generic_reloc, /* special_function */ | |
284 | "R_ARM_SWI8", /* name */ | |
285 | FALSE, /* partial_inplace */ | |
286 | 0x00000000, /* src_mask */ | |
287 | 0x00000000, /* dst_mask */ | |
288 | FALSE), /* pcrel_offset */ | |
289 | ||
290 | /* BLX instruction for the ARM. */ | |
291 | HOWTO (R_ARM_XPC25, /* type */ | |
292 | 2, /* rightshift */ | |
293 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
294 | 25, /* bitsize */ | |
295 | TRUE, /* pc_relative */ | |
296 | 0, /* bitpos */ | |
297 | complain_overflow_signed,/* complain_on_overflow */ | |
298 | bfd_elf_generic_reloc, /* special_function */ | |
299 | "R_ARM_XPC25", /* name */ | |
300 | FALSE, /* partial_inplace */ | |
301 | 0x00ffffff, /* src_mask */ | |
302 | 0x00ffffff, /* dst_mask */ | |
303 | TRUE), /* pcrel_offset */ | |
304 | ||
305 | /* BLX instruction for the Thumb. */ | |
306 | HOWTO (R_ARM_THM_XPC22, /* type */ | |
307 | 2, /* rightshift */ | |
308 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
309 | 22, /* bitsize */ | |
310 | TRUE, /* pc_relative */ | |
311 | 0, /* bitpos */ | |
312 | complain_overflow_signed,/* complain_on_overflow */ | |
313 | bfd_elf_generic_reloc, /* special_function */ | |
314 | "R_ARM_THM_XPC22", /* name */ | |
315 | FALSE, /* partial_inplace */ | |
316 | 0x07ff07ff, /* src_mask */ | |
317 | 0x07ff07ff, /* dst_mask */ | |
318 | TRUE), /* pcrel_offset */ | |
319 | ||
ba93b8ac | 320 | /* Dynamic TLS relocations. */ |
7f266840 | 321 | |
ba93b8ac DJ |
322 | HOWTO (R_ARM_TLS_DTPMOD32, /* type */ |
323 | 0, /* rightshift */ | |
324 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
325 | 32, /* bitsize */ | |
326 | FALSE, /* pc_relative */ | |
327 | 0, /* bitpos */ | |
328 | complain_overflow_bitfield,/* complain_on_overflow */ | |
329 | bfd_elf_generic_reloc, /* special_function */ | |
330 | "R_ARM_TLS_DTPMOD32", /* name */ | |
331 | TRUE, /* partial_inplace */ | |
332 | 0xffffffff, /* src_mask */ | |
333 | 0xffffffff, /* dst_mask */ | |
334 | FALSE), /* pcrel_offset */ | |
7f266840 | 335 | |
ba93b8ac DJ |
336 | HOWTO (R_ARM_TLS_DTPOFF32, /* type */ |
337 | 0, /* rightshift */ | |
338 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
339 | 32, /* bitsize */ | |
340 | FALSE, /* pc_relative */ | |
341 | 0, /* bitpos */ | |
342 | complain_overflow_bitfield,/* complain_on_overflow */ | |
343 | bfd_elf_generic_reloc, /* special_function */ | |
344 | "R_ARM_TLS_DTPOFF32", /* name */ | |
345 | TRUE, /* partial_inplace */ | |
346 | 0xffffffff, /* src_mask */ | |
347 | 0xffffffff, /* dst_mask */ | |
348 | FALSE), /* pcrel_offset */ | |
7f266840 | 349 | |
ba93b8ac DJ |
350 | HOWTO (R_ARM_TLS_TPOFF32, /* type */ |
351 | 0, /* rightshift */ | |
352 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
353 | 32, /* bitsize */ | |
354 | FALSE, /* pc_relative */ | |
355 | 0, /* bitpos */ | |
356 | complain_overflow_bitfield,/* complain_on_overflow */ | |
357 | bfd_elf_generic_reloc, /* special_function */ | |
358 | "R_ARM_TLS_TPOFF32", /* name */ | |
359 | TRUE, /* partial_inplace */ | |
360 | 0xffffffff, /* src_mask */ | |
361 | 0xffffffff, /* dst_mask */ | |
362 | FALSE), /* pcrel_offset */ | |
7f266840 DJ |
363 | |
364 | /* Relocs used in ARM Linux */ | |
365 | ||
366 | HOWTO (R_ARM_COPY, /* type */ | |
367 | 0, /* rightshift */ | |
368 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
369 | 32, /* bitsize */ | |
370 | FALSE, /* pc_relative */ | |
371 | 0, /* bitpos */ | |
372 | complain_overflow_bitfield,/* complain_on_overflow */ | |
373 | bfd_elf_generic_reloc, /* special_function */ | |
374 | "R_ARM_COPY", /* name */ | |
375 | TRUE, /* partial_inplace */ | |
376 | 0xffffffff, /* src_mask */ | |
377 | 0xffffffff, /* dst_mask */ | |
378 | FALSE), /* pcrel_offset */ | |
379 | ||
380 | HOWTO (R_ARM_GLOB_DAT, /* type */ | |
381 | 0, /* rightshift */ | |
382 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
383 | 32, /* bitsize */ | |
384 | FALSE, /* pc_relative */ | |
385 | 0, /* bitpos */ | |
386 | complain_overflow_bitfield,/* complain_on_overflow */ | |
387 | bfd_elf_generic_reloc, /* special_function */ | |
388 | "R_ARM_GLOB_DAT", /* name */ | |
389 | TRUE, /* partial_inplace */ | |
390 | 0xffffffff, /* src_mask */ | |
391 | 0xffffffff, /* dst_mask */ | |
392 | FALSE), /* pcrel_offset */ | |
393 | ||
394 | HOWTO (R_ARM_JUMP_SLOT, /* type */ | |
395 | 0, /* rightshift */ | |
396 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
397 | 32, /* bitsize */ | |
398 | FALSE, /* pc_relative */ | |
399 | 0, /* bitpos */ | |
400 | complain_overflow_bitfield,/* complain_on_overflow */ | |
401 | bfd_elf_generic_reloc, /* special_function */ | |
402 | "R_ARM_JUMP_SLOT", /* name */ | |
403 | TRUE, /* partial_inplace */ | |
404 | 0xffffffff, /* src_mask */ | |
405 | 0xffffffff, /* dst_mask */ | |
406 | FALSE), /* pcrel_offset */ | |
407 | ||
408 | HOWTO (R_ARM_RELATIVE, /* type */ | |
409 | 0, /* rightshift */ | |
410 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
411 | 32, /* bitsize */ | |
412 | FALSE, /* pc_relative */ | |
413 | 0, /* bitpos */ | |
414 | complain_overflow_bitfield,/* complain_on_overflow */ | |
415 | bfd_elf_generic_reloc, /* special_function */ | |
416 | "R_ARM_RELATIVE", /* name */ | |
417 | TRUE, /* partial_inplace */ | |
418 | 0xffffffff, /* src_mask */ | |
419 | 0xffffffff, /* dst_mask */ | |
420 | FALSE), /* pcrel_offset */ | |
421 | ||
c19d1205 | 422 | HOWTO (R_ARM_GOTOFF32, /* type */ |
7f266840 DJ |
423 | 0, /* rightshift */ |
424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
425 | 32, /* bitsize */ | |
426 | FALSE, /* pc_relative */ | |
427 | 0, /* bitpos */ | |
428 | complain_overflow_bitfield,/* complain_on_overflow */ | |
429 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 430 | "R_ARM_GOTOFF32", /* name */ |
7f266840 DJ |
431 | TRUE, /* partial_inplace */ |
432 | 0xffffffff, /* src_mask */ | |
433 | 0xffffffff, /* dst_mask */ | |
434 | FALSE), /* pcrel_offset */ | |
435 | ||
436 | HOWTO (R_ARM_GOTPC, /* type */ | |
437 | 0, /* rightshift */ | |
438 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
439 | 32, /* bitsize */ | |
440 | TRUE, /* pc_relative */ | |
441 | 0, /* bitpos */ | |
442 | complain_overflow_bitfield,/* complain_on_overflow */ | |
443 | bfd_elf_generic_reloc, /* special_function */ | |
444 | "R_ARM_GOTPC", /* name */ | |
445 | TRUE, /* partial_inplace */ | |
446 | 0xffffffff, /* src_mask */ | |
447 | 0xffffffff, /* dst_mask */ | |
448 | TRUE), /* pcrel_offset */ | |
449 | ||
450 | HOWTO (R_ARM_GOT32, /* type */ | |
451 | 0, /* rightshift */ | |
452 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
453 | 32, /* bitsize */ | |
454 | FALSE, /* pc_relative */ | |
455 | 0, /* bitpos */ | |
456 | complain_overflow_bitfield,/* complain_on_overflow */ | |
457 | bfd_elf_generic_reloc, /* special_function */ | |
458 | "R_ARM_GOT32", /* name */ | |
459 | TRUE, /* partial_inplace */ | |
460 | 0xffffffff, /* src_mask */ | |
461 | 0xffffffff, /* dst_mask */ | |
462 | FALSE), /* pcrel_offset */ | |
463 | ||
464 | HOWTO (R_ARM_PLT32, /* type */ | |
465 | 2, /* rightshift */ | |
466 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
ce490eda | 467 | 24, /* bitsize */ |
7f266840 DJ |
468 | TRUE, /* pc_relative */ |
469 | 0, /* bitpos */ | |
470 | complain_overflow_bitfield,/* complain_on_overflow */ | |
471 | bfd_elf_generic_reloc, /* special_function */ | |
472 | "R_ARM_PLT32", /* name */ | |
ce490eda | 473 | FALSE, /* partial_inplace */ |
7f266840 DJ |
474 | 0x00ffffff, /* src_mask */ |
475 | 0x00ffffff, /* dst_mask */ | |
476 | TRUE), /* pcrel_offset */ | |
477 | ||
478 | HOWTO (R_ARM_CALL, /* type */ | |
479 | 2, /* rightshift */ | |
480 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
481 | 24, /* bitsize */ | |
482 | TRUE, /* pc_relative */ | |
483 | 0, /* bitpos */ | |
484 | complain_overflow_signed,/* complain_on_overflow */ | |
485 | bfd_elf_generic_reloc, /* special_function */ | |
486 | "R_ARM_CALL", /* name */ | |
487 | FALSE, /* partial_inplace */ | |
488 | 0x00ffffff, /* src_mask */ | |
489 | 0x00ffffff, /* dst_mask */ | |
490 | TRUE), /* pcrel_offset */ | |
491 | ||
492 | HOWTO (R_ARM_JUMP24, /* type */ | |
493 | 2, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 24, /* bitsize */ | |
496 | TRUE, /* pc_relative */ | |
497 | 0, /* bitpos */ | |
498 | complain_overflow_signed,/* complain_on_overflow */ | |
499 | bfd_elf_generic_reloc, /* special_function */ | |
500 | "R_ARM_JUMP24", /* name */ | |
501 | FALSE, /* partial_inplace */ | |
502 | 0x00ffffff, /* src_mask */ | |
503 | 0x00ffffff, /* dst_mask */ | |
504 | TRUE), /* pcrel_offset */ | |
505 | ||
c19d1205 ZW |
506 | HOWTO (R_ARM_THM_JUMP24, /* type */ |
507 | 1, /* rightshift */ | |
508 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
509 | 24, /* bitsize */ | |
510 | TRUE, /* pc_relative */ | |
7f266840 | 511 | 0, /* bitpos */ |
c19d1205 | 512 | complain_overflow_signed,/* complain_on_overflow */ |
7f266840 | 513 | bfd_elf_generic_reloc, /* special_function */ |
c19d1205 | 514 | "R_ARM_THM_JUMP24", /* name */ |
7f266840 | 515 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
516 | 0x07ff2fff, /* src_mask */ |
517 | 0x07ff2fff, /* dst_mask */ | |
518 | TRUE), /* pcrel_offset */ | |
7f266840 | 519 | |
c19d1205 | 520 | HOWTO (R_ARM_BASE_ABS, /* type */ |
7f266840 | 521 | 0, /* rightshift */ |
c19d1205 ZW |
522 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
523 | 32, /* bitsize */ | |
7f266840 DJ |
524 | FALSE, /* pc_relative */ |
525 | 0, /* bitpos */ | |
526 | complain_overflow_dont,/* complain_on_overflow */ | |
527 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 528 | "R_ARM_BASE_ABS", /* name */ |
7f266840 | 529 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
530 | 0xffffffff, /* src_mask */ |
531 | 0xffffffff, /* dst_mask */ | |
7f266840 DJ |
532 | FALSE), /* pcrel_offset */ |
533 | ||
534 | HOWTO (R_ARM_ALU_PCREL7_0, /* type */ | |
535 | 0, /* rightshift */ | |
536 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
537 | 12, /* bitsize */ | |
538 | TRUE, /* pc_relative */ | |
539 | 0, /* bitpos */ | |
540 | complain_overflow_dont,/* complain_on_overflow */ | |
541 | bfd_elf_generic_reloc, /* special_function */ | |
542 | "R_ARM_ALU_PCREL_7_0", /* name */ | |
543 | FALSE, /* partial_inplace */ | |
544 | 0x00000fff, /* src_mask */ | |
545 | 0x00000fff, /* dst_mask */ | |
546 | TRUE), /* pcrel_offset */ | |
547 | ||
548 | HOWTO (R_ARM_ALU_PCREL15_8, /* type */ | |
549 | 0, /* rightshift */ | |
550 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
551 | 12, /* bitsize */ | |
552 | TRUE, /* pc_relative */ | |
553 | 8, /* bitpos */ | |
554 | complain_overflow_dont,/* complain_on_overflow */ | |
555 | bfd_elf_generic_reloc, /* special_function */ | |
556 | "R_ARM_ALU_PCREL_15_8",/* name */ | |
557 | FALSE, /* partial_inplace */ | |
558 | 0x00000fff, /* src_mask */ | |
559 | 0x00000fff, /* dst_mask */ | |
560 | TRUE), /* pcrel_offset */ | |
561 | ||
562 | HOWTO (R_ARM_ALU_PCREL23_15, /* type */ | |
563 | 0, /* rightshift */ | |
564 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
565 | 12, /* bitsize */ | |
566 | TRUE, /* pc_relative */ | |
567 | 16, /* bitpos */ | |
568 | complain_overflow_dont,/* complain_on_overflow */ | |
569 | bfd_elf_generic_reloc, /* special_function */ | |
570 | "R_ARM_ALU_PCREL_23_15",/* name */ | |
571 | FALSE, /* partial_inplace */ | |
572 | 0x00000fff, /* src_mask */ | |
573 | 0x00000fff, /* dst_mask */ | |
574 | TRUE), /* pcrel_offset */ | |
575 | ||
576 | HOWTO (R_ARM_LDR_SBREL_11_0, /* type */ | |
577 | 0, /* rightshift */ | |
578 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
579 | 12, /* bitsize */ | |
580 | FALSE, /* pc_relative */ | |
581 | 0, /* bitpos */ | |
582 | complain_overflow_dont,/* complain_on_overflow */ | |
583 | bfd_elf_generic_reloc, /* special_function */ | |
584 | "R_ARM_LDR_SBREL_11_0",/* name */ | |
585 | FALSE, /* partial_inplace */ | |
586 | 0x00000fff, /* src_mask */ | |
587 | 0x00000fff, /* dst_mask */ | |
588 | FALSE), /* pcrel_offset */ | |
589 | ||
590 | HOWTO (R_ARM_ALU_SBREL_19_12, /* type */ | |
591 | 0, /* rightshift */ | |
592 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
593 | 8, /* bitsize */ | |
594 | FALSE, /* pc_relative */ | |
595 | 12, /* bitpos */ | |
596 | complain_overflow_dont,/* complain_on_overflow */ | |
597 | bfd_elf_generic_reloc, /* special_function */ | |
598 | "R_ARM_ALU_SBREL_19_12",/* name */ | |
599 | FALSE, /* partial_inplace */ | |
600 | 0x000ff000, /* src_mask */ | |
601 | 0x000ff000, /* dst_mask */ | |
602 | FALSE), /* pcrel_offset */ | |
603 | ||
604 | HOWTO (R_ARM_ALU_SBREL_27_20, /* type */ | |
605 | 0, /* rightshift */ | |
606 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
607 | 8, /* bitsize */ | |
608 | FALSE, /* pc_relative */ | |
609 | 20, /* bitpos */ | |
610 | complain_overflow_dont,/* complain_on_overflow */ | |
611 | bfd_elf_generic_reloc, /* special_function */ | |
612 | "R_ARM_ALU_SBREL_27_20",/* name */ | |
613 | FALSE, /* partial_inplace */ | |
614 | 0x0ff00000, /* src_mask */ | |
615 | 0x0ff00000, /* dst_mask */ | |
616 | FALSE), /* pcrel_offset */ | |
617 | ||
618 | HOWTO (R_ARM_TARGET1, /* type */ | |
619 | 0, /* rightshift */ | |
620 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
621 | 32, /* bitsize */ | |
622 | FALSE, /* pc_relative */ | |
623 | 0, /* bitpos */ | |
624 | complain_overflow_dont,/* complain_on_overflow */ | |
625 | bfd_elf_generic_reloc, /* special_function */ | |
626 | "R_ARM_TARGET1", /* name */ | |
627 | FALSE, /* partial_inplace */ | |
628 | 0xffffffff, /* src_mask */ | |
629 | 0xffffffff, /* dst_mask */ | |
630 | FALSE), /* pcrel_offset */ | |
631 | ||
632 | HOWTO (R_ARM_ROSEGREL32, /* type */ | |
633 | 0, /* rightshift */ | |
634 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
635 | 32, /* bitsize */ | |
636 | FALSE, /* pc_relative */ | |
637 | 0, /* bitpos */ | |
638 | complain_overflow_dont,/* complain_on_overflow */ | |
639 | bfd_elf_generic_reloc, /* special_function */ | |
640 | "R_ARM_ROSEGREL32", /* name */ | |
641 | FALSE, /* partial_inplace */ | |
642 | 0xffffffff, /* src_mask */ | |
643 | 0xffffffff, /* dst_mask */ | |
644 | FALSE), /* pcrel_offset */ | |
645 | ||
646 | HOWTO (R_ARM_V4BX, /* type */ | |
647 | 0, /* rightshift */ | |
648 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
649 | 32, /* bitsize */ | |
650 | FALSE, /* pc_relative */ | |
651 | 0, /* bitpos */ | |
652 | complain_overflow_dont,/* complain_on_overflow */ | |
653 | bfd_elf_generic_reloc, /* special_function */ | |
654 | "R_ARM_V4BX", /* name */ | |
655 | FALSE, /* partial_inplace */ | |
656 | 0xffffffff, /* src_mask */ | |
657 | 0xffffffff, /* dst_mask */ | |
658 | FALSE), /* pcrel_offset */ | |
659 | ||
660 | HOWTO (R_ARM_TARGET2, /* type */ | |
661 | 0, /* rightshift */ | |
662 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
663 | 32, /* bitsize */ | |
664 | FALSE, /* pc_relative */ | |
665 | 0, /* bitpos */ | |
666 | complain_overflow_signed,/* complain_on_overflow */ | |
667 | bfd_elf_generic_reloc, /* special_function */ | |
668 | "R_ARM_TARGET2", /* name */ | |
669 | FALSE, /* partial_inplace */ | |
670 | 0xffffffff, /* src_mask */ | |
671 | 0xffffffff, /* dst_mask */ | |
672 | TRUE), /* pcrel_offset */ | |
673 | ||
674 | HOWTO (R_ARM_PREL31, /* type */ | |
675 | 0, /* rightshift */ | |
676 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
677 | 31, /* bitsize */ | |
678 | TRUE, /* pc_relative */ | |
679 | 0, /* bitpos */ | |
680 | complain_overflow_signed,/* complain_on_overflow */ | |
681 | bfd_elf_generic_reloc, /* special_function */ | |
682 | "R_ARM_PREL31", /* name */ | |
683 | FALSE, /* partial_inplace */ | |
684 | 0x7fffffff, /* src_mask */ | |
685 | 0x7fffffff, /* dst_mask */ | |
686 | TRUE), /* pcrel_offset */ | |
c19d1205 ZW |
687 | |
688 | HOWTO (R_ARM_MOVW_ABS_NC, /* type */ | |
689 | 0, /* rightshift */ | |
690 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
691 | 16, /* bitsize */ | |
692 | FALSE, /* pc_relative */ | |
693 | 0, /* bitpos */ | |
694 | complain_overflow_dont,/* complain_on_overflow */ | |
695 | bfd_elf_generic_reloc, /* special_function */ | |
696 | "R_ARM_MOVW_ABS_NC", /* name */ | |
697 | FALSE, /* partial_inplace */ | |
698 | 0x0000ffff, /* src_mask */ | |
699 | 0x0000ffff, /* dst_mask */ | |
700 | FALSE), /* pcrel_offset */ | |
701 | ||
702 | HOWTO (R_ARM_MOVT_ABS, /* type */ | |
703 | 0, /* rightshift */ | |
704 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
705 | 16, /* bitsize */ | |
706 | FALSE, /* pc_relative */ | |
707 | 0, /* bitpos */ | |
708 | complain_overflow_bitfield,/* complain_on_overflow */ | |
709 | bfd_elf_generic_reloc, /* special_function */ | |
710 | "R_ARM_MOVT_ABS", /* name */ | |
711 | FALSE, /* partial_inplace */ | |
712 | 0x0000ffff, /* src_mask */ | |
713 | 0x0000ffff, /* dst_mask */ | |
714 | FALSE), /* pcrel_offset */ | |
715 | ||
716 | HOWTO (R_ARM_MOVW_PREL_NC, /* type */ | |
717 | 0, /* rightshift */ | |
718 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
719 | 16, /* bitsize */ | |
720 | TRUE, /* pc_relative */ | |
721 | 0, /* bitpos */ | |
722 | complain_overflow_dont,/* complain_on_overflow */ | |
723 | bfd_elf_generic_reloc, /* special_function */ | |
724 | "R_ARM_MOVW_PREL_NC", /* name */ | |
725 | FALSE, /* partial_inplace */ | |
726 | 0x0000ffff, /* src_mask */ | |
727 | 0x0000ffff, /* dst_mask */ | |
728 | TRUE), /* pcrel_offset */ | |
729 | ||
730 | HOWTO (R_ARM_MOVT_PREL, /* type */ | |
731 | 0, /* rightshift */ | |
732 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
733 | 16, /* bitsize */ | |
734 | TRUE, /* pc_relative */ | |
735 | 0, /* bitpos */ | |
736 | complain_overflow_bitfield,/* complain_on_overflow */ | |
737 | bfd_elf_generic_reloc, /* special_function */ | |
738 | "R_ARM_MOVT_PREL", /* name */ | |
739 | FALSE, /* partial_inplace */ | |
740 | 0x0000ffff, /* src_mask */ | |
741 | 0x0000ffff, /* dst_mask */ | |
742 | TRUE), /* pcrel_offset */ | |
743 | ||
744 | HOWTO (R_ARM_THM_MOVW_ABS_NC, /* type */ | |
745 | 0, /* rightshift */ | |
746 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
747 | 16, /* bitsize */ | |
748 | FALSE, /* pc_relative */ | |
749 | 0, /* bitpos */ | |
750 | complain_overflow_dont,/* complain_on_overflow */ | |
751 | bfd_elf_generic_reloc, /* special_function */ | |
752 | "R_ARM_THM_MOVW_ABS_NC",/* name */ | |
753 | FALSE, /* partial_inplace */ | |
754 | 0x040f70ff, /* src_mask */ | |
755 | 0x040f70ff, /* dst_mask */ | |
756 | FALSE), /* pcrel_offset */ | |
757 | ||
758 | HOWTO (R_ARM_THM_MOVT_ABS, /* type */ | |
759 | 0, /* rightshift */ | |
760 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
761 | 16, /* bitsize */ | |
762 | FALSE, /* pc_relative */ | |
763 | 0, /* bitpos */ | |
764 | complain_overflow_bitfield,/* complain_on_overflow */ | |
765 | bfd_elf_generic_reloc, /* special_function */ | |
766 | "R_ARM_THM_MOVT_ABS", /* name */ | |
767 | FALSE, /* partial_inplace */ | |
768 | 0x040f70ff, /* src_mask */ | |
769 | 0x040f70ff, /* dst_mask */ | |
770 | FALSE), /* pcrel_offset */ | |
771 | ||
772 | HOWTO (R_ARM_THM_MOVW_PREL_NC,/* type */ | |
773 | 0, /* rightshift */ | |
774 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
775 | 16, /* bitsize */ | |
776 | TRUE, /* pc_relative */ | |
777 | 0, /* bitpos */ | |
778 | complain_overflow_dont,/* complain_on_overflow */ | |
779 | bfd_elf_generic_reloc, /* special_function */ | |
780 | "R_ARM_THM_MOVW_PREL_NC",/* name */ | |
781 | FALSE, /* partial_inplace */ | |
782 | 0x040f70ff, /* src_mask */ | |
783 | 0x040f70ff, /* dst_mask */ | |
784 | TRUE), /* pcrel_offset */ | |
785 | ||
786 | HOWTO (R_ARM_THM_MOVT_PREL, /* type */ | |
787 | 0, /* rightshift */ | |
788 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
789 | 16, /* bitsize */ | |
790 | TRUE, /* pc_relative */ | |
791 | 0, /* bitpos */ | |
792 | complain_overflow_bitfield,/* complain_on_overflow */ | |
793 | bfd_elf_generic_reloc, /* special_function */ | |
794 | "R_ARM_THM_MOVT_PREL", /* name */ | |
795 | FALSE, /* partial_inplace */ | |
796 | 0x040f70ff, /* src_mask */ | |
797 | 0x040f70ff, /* dst_mask */ | |
798 | TRUE), /* pcrel_offset */ | |
799 | ||
800 | HOWTO (R_ARM_THM_JUMP19, /* type */ | |
801 | 1, /* rightshift */ | |
802 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
803 | 19, /* bitsize */ | |
804 | TRUE, /* pc_relative */ | |
805 | 0, /* bitpos */ | |
806 | complain_overflow_signed,/* complain_on_overflow */ | |
807 | bfd_elf_generic_reloc, /* special_function */ | |
808 | "R_ARM_THM_JUMP19", /* name */ | |
809 | FALSE, /* partial_inplace */ | |
810 | 0x043f2fff, /* src_mask */ | |
811 | 0x043f2fff, /* dst_mask */ | |
812 | TRUE), /* pcrel_offset */ | |
813 | ||
814 | HOWTO (R_ARM_THM_JUMP6, /* type */ | |
815 | 1, /* rightshift */ | |
816 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
817 | 6, /* bitsize */ | |
818 | TRUE, /* pc_relative */ | |
819 | 0, /* bitpos */ | |
820 | complain_overflow_unsigned,/* complain_on_overflow */ | |
821 | bfd_elf_generic_reloc, /* special_function */ | |
822 | "R_ARM_THM_JUMP6", /* name */ | |
823 | FALSE, /* partial_inplace */ | |
824 | 0x02f8, /* src_mask */ | |
825 | 0x02f8, /* dst_mask */ | |
826 | TRUE), /* pcrel_offset */ | |
827 | ||
828 | /* These are declared as 13-bit signed relocations because we can | |
829 | address -4095 .. 4095(base) by altering ADDW to SUBW or vice | |
830 | versa. */ | |
831 | HOWTO (R_ARM_THM_ALU_PREL_11_0,/* type */ | |
832 | 0, /* rightshift */ | |
833 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
834 | 13, /* bitsize */ | |
835 | TRUE, /* pc_relative */ | |
836 | 0, /* bitpos */ | |
2cab6cc3 | 837 | complain_overflow_dont,/* complain_on_overflow */ |
c19d1205 ZW |
838 | bfd_elf_generic_reloc, /* special_function */ |
839 | "R_ARM_THM_ALU_PREL_11_0",/* name */ | |
840 | FALSE, /* partial_inplace */ | |
2cab6cc3 MS |
841 | 0xffffffff, /* src_mask */ |
842 | 0xffffffff, /* dst_mask */ | |
c19d1205 ZW |
843 | TRUE), /* pcrel_offset */ |
844 | ||
845 | HOWTO (R_ARM_THM_PC12, /* type */ | |
846 | 0, /* rightshift */ | |
847 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
848 | 13, /* bitsize */ | |
849 | TRUE, /* pc_relative */ | |
850 | 0, /* bitpos */ | |
2cab6cc3 | 851 | complain_overflow_dont,/* complain_on_overflow */ |
c19d1205 ZW |
852 | bfd_elf_generic_reloc, /* special_function */ |
853 | "R_ARM_THM_PC12", /* name */ | |
854 | FALSE, /* partial_inplace */ | |
2cab6cc3 MS |
855 | 0xffffffff, /* src_mask */ |
856 | 0xffffffff, /* dst_mask */ | |
c19d1205 ZW |
857 | TRUE), /* pcrel_offset */ |
858 | ||
859 | HOWTO (R_ARM_ABS32_NOI, /* type */ | |
860 | 0, /* rightshift */ | |
861 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
862 | 32, /* bitsize */ | |
863 | FALSE, /* pc_relative */ | |
864 | 0, /* bitpos */ | |
865 | complain_overflow_dont,/* complain_on_overflow */ | |
866 | bfd_elf_generic_reloc, /* special_function */ | |
867 | "R_ARM_ABS32_NOI", /* name */ | |
868 | FALSE, /* partial_inplace */ | |
869 | 0xffffffff, /* src_mask */ | |
870 | 0xffffffff, /* dst_mask */ | |
871 | FALSE), /* pcrel_offset */ | |
872 | ||
873 | HOWTO (R_ARM_REL32_NOI, /* type */ | |
874 | 0, /* rightshift */ | |
875 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
876 | 32, /* bitsize */ | |
877 | TRUE, /* pc_relative */ | |
878 | 0, /* bitpos */ | |
879 | complain_overflow_dont,/* complain_on_overflow */ | |
880 | bfd_elf_generic_reloc, /* special_function */ | |
881 | "R_ARM_REL32_NOI", /* name */ | |
882 | FALSE, /* partial_inplace */ | |
883 | 0xffffffff, /* src_mask */ | |
884 | 0xffffffff, /* dst_mask */ | |
885 | FALSE), /* pcrel_offset */ | |
7f266840 | 886 | |
4962c51a MS |
887 | /* Group relocations. */ |
888 | ||
889 | HOWTO (R_ARM_ALU_PC_G0_NC, /* type */ | |
890 | 0, /* rightshift */ | |
891 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
892 | 32, /* bitsize */ | |
893 | TRUE, /* pc_relative */ | |
894 | 0, /* bitpos */ | |
895 | complain_overflow_dont,/* complain_on_overflow */ | |
896 | bfd_elf_generic_reloc, /* special_function */ | |
897 | "R_ARM_ALU_PC_G0_NC", /* name */ | |
898 | FALSE, /* partial_inplace */ | |
899 | 0xffffffff, /* src_mask */ | |
900 | 0xffffffff, /* dst_mask */ | |
901 | TRUE), /* pcrel_offset */ | |
902 | ||
903 | HOWTO (R_ARM_ALU_PC_G0, /* type */ | |
904 | 0, /* rightshift */ | |
905 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
906 | 32, /* bitsize */ | |
907 | TRUE, /* pc_relative */ | |
908 | 0, /* bitpos */ | |
909 | complain_overflow_dont,/* complain_on_overflow */ | |
910 | bfd_elf_generic_reloc, /* special_function */ | |
911 | "R_ARM_ALU_PC_G0", /* name */ | |
912 | FALSE, /* partial_inplace */ | |
913 | 0xffffffff, /* src_mask */ | |
914 | 0xffffffff, /* dst_mask */ | |
915 | TRUE), /* pcrel_offset */ | |
916 | ||
917 | HOWTO (R_ARM_ALU_PC_G1_NC, /* type */ | |
918 | 0, /* rightshift */ | |
919 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
920 | 32, /* bitsize */ | |
921 | TRUE, /* pc_relative */ | |
922 | 0, /* bitpos */ | |
923 | complain_overflow_dont,/* complain_on_overflow */ | |
924 | bfd_elf_generic_reloc, /* special_function */ | |
925 | "R_ARM_ALU_PC_G1_NC", /* name */ | |
926 | FALSE, /* partial_inplace */ | |
927 | 0xffffffff, /* src_mask */ | |
928 | 0xffffffff, /* dst_mask */ | |
929 | TRUE), /* pcrel_offset */ | |
930 | ||
931 | HOWTO (R_ARM_ALU_PC_G1, /* type */ | |
932 | 0, /* rightshift */ | |
933 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
934 | 32, /* bitsize */ | |
935 | TRUE, /* pc_relative */ | |
936 | 0, /* bitpos */ | |
937 | complain_overflow_dont,/* complain_on_overflow */ | |
938 | bfd_elf_generic_reloc, /* special_function */ | |
939 | "R_ARM_ALU_PC_G1", /* name */ | |
940 | FALSE, /* partial_inplace */ | |
941 | 0xffffffff, /* src_mask */ | |
942 | 0xffffffff, /* dst_mask */ | |
943 | TRUE), /* pcrel_offset */ | |
944 | ||
945 | HOWTO (R_ARM_ALU_PC_G2, /* type */ | |
946 | 0, /* rightshift */ | |
947 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
948 | 32, /* bitsize */ | |
949 | TRUE, /* pc_relative */ | |
950 | 0, /* bitpos */ | |
951 | complain_overflow_dont,/* complain_on_overflow */ | |
952 | bfd_elf_generic_reloc, /* special_function */ | |
953 | "R_ARM_ALU_PC_G2", /* name */ | |
954 | FALSE, /* partial_inplace */ | |
955 | 0xffffffff, /* src_mask */ | |
956 | 0xffffffff, /* dst_mask */ | |
957 | TRUE), /* pcrel_offset */ | |
958 | ||
959 | HOWTO (R_ARM_LDR_PC_G1, /* type */ | |
960 | 0, /* rightshift */ | |
961 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
962 | 32, /* bitsize */ | |
963 | TRUE, /* pc_relative */ | |
964 | 0, /* bitpos */ | |
965 | complain_overflow_dont,/* complain_on_overflow */ | |
966 | bfd_elf_generic_reloc, /* special_function */ | |
967 | "R_ARM_LDR_PC_G1", /* name */ | |
968 | FALSE, /* partial_inplace */ | |
969 | 0xffffffff, /* src_mask */ | |
970 | 0xffffffff, /* dst_mask */ | |
971 | TRUE), /* pcrel_offset */ | |
972 | ||
973 | HOWTO (R_ARM_LDR_PC_G2, /* type */ | |
974 | 0, /* rightshift */ | |
975 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
976 | 32, /* bitsize */ | |
977 | TRUE, /* pc_relative */ | |
978 | 0, /* bitpos */ | |
979 | complain_overflow_dont,/* complain_on_overflow */ | |
980 | bfd_elf_generic_reloc, /* special_function */ | |
981 | "R_ARM_LDR_PC_G2", /* name */ | |
982 | FALSE, /* partial_inplace */ | |
983 | 0xffffffff, /* src_mask */ | |
984 | 0xffffffff, /* dst_mask */ | |
985 | TRUE), /* pcrel_offset */ | |
986 | ||
987 | HOWTO (R_ARM_LDRS_PC_G0, /* type */ | |
988 | 0, /* rightshift */ | |
989 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
990 | 32, /* bitsize */ | |
991 | TRUE, /* pc_relative */ | |
992 | 0, /* bitpos */ | |
993 | complain_overflow_dont,/* complain_on_overflow */ | |
994 | bfd_elf_generic_reloc, /* special_function */ | |
995 | "R_ARM_LDRS_PC_G0", /* name */ | |
996 | FALSE, /* partial_inplace */ | |
997 | 0xffffffff, /* src_mask */ | |
998 | 0xffffffff, /* dst_mask */ | |
999 | TRUE), /* pcrel_offset */ | |
1000 | ||
1001 | HOWTO (R_ARM_LDRS_PC_G1, /* type */ | |
1002 | 0, /* rightshift */ | |
1003 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1004 | 32, /* bitsize */ | |
1005 | TRUE, /* pc_relative */ | |
1006 | 0, /* bitpos */ | |
1007 | complain_overflow_dont,/* complain_on_overflow */ | |
1008 | bfd_elf_generic_reloc, /* special_function */ | |
1009 | "R_ARM_LDRS_PC_G1", /* name */ | |
1010 | FALSE, /* partial_inplace */ | |
1011 | 0xffffffff, /* src_mask */ | |
1012 | 0xffffffff, /* dst_mask */ | |
1013 | TRUE), /* pcrel_offset */ | |
1014 | ||
1015 | HOWTO (R_ARM_LDRS_PC_G2, /* type */ | |
1016 | 0, /* rightshift */ | |
1017 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1018 | 32, /* bitsize */ | |
1019 | TRUE, /* pc_relative */ | |
1020 | 0, /* bitpos */ | |
1021 | complain_overflow_dont,/* complain_on_overflow */ | |
1022 | bfd_elf_generic_reloc, /* special_function */ | |
1023 | "R_ARM_LDRS_PC_G2", /* name */ | |
1024 | FALSE, /* partial_inplace */ | |
1025 | 0xffffffff, /* src_mask */ | |
1026 | 0xffffffff, /* dst_mask */ | |
1027 | TRUE), /* pcrel_offset */ | |
1028 | ||
1029 | HOWTO (R_ARM_LDC_PC_G0, /* type */ | |
1030 | 0, /* rightshift */ | |
1031 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1032 | 32, /* bitsize */ | |
1033 | TRUE, /* pc_relative */ | |
1034 | 0, /* bitpos */ | |
1035 | complain_overflow_dont,/* complain_on_overflow */ | |
1036 | bfd_elf_generic_reloc, /* special_function */ | |
1037 | "R_ARM_LDC_PC_G0", /* name */ | |
1038 | FALSE, /* partial_inplace */ | |
1039 | 0xffffffff, /* src_mask */ | |
1040 | 0xffffffff, /* dst_mask */ | |
1041 | TRUE), /* pcrel_offset */ | |
1042 | ||
1043 | HOWTO (R_ARM_LDC_PC_G1, /* type */ | |
1044 | 0, /* rightshift */ | |
1045 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1046 | 32, /* bitsize */ | |
1047 | TRUE, /* pc_relative */ | |
1048 | 0, /* bitpos */ | |
1049 | complain_overflow_dont,/* complain_on_overflow */ | |
1050 | bfd_elf_generic_reloc, /* special_function */ | |
1051 | "R_ARM_LDC_PC_G1", /* name */ | |
1052 | FALSE, /* partial_inplace */ | |
1053 | 0xffffffff, /* src_mask */ | |
1054 | 0xffffffff, /* dst_mask */ | |
1055 | TRUE), /* pcrel_offset */ | |
1056 | ||
1057 | HOWTO (R_ARM_LDC_PC_G2, /* type */ | |
1058 | 0, /* rightshift */ | |
1059 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1060 | 32, /* bitsize */ | |
1061 | TRUE, /* pc_relative */ | |
1062 | 0, /* bitpos */ | |
1063 | complain_overflow_dont,/* complain_on_overflow */ | |
1064 | bfd_elf_generic_reloc, /* special_function */ | |
1065 | "R_ARM_LDC_PC_G2", /* name */ | |
1066 | FALSE, /* partial_inplace */ | |
1067 | 0xffffffff, /* src_mask */ | |
1068 | 0xffffffff, /* dst_mask */ | |
1069 | TRUE), /* pcrel_offset */ | |
1070 | ||
1071 | HOWTO (R_ARM_ALU_SB_G0_NC, /* type */ | |
1072 | 0, /* rightshift */ | |
1073 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1074 | 32, /* bitsize */ | |
1075 | TRUE, /* pc_relative */ | |
1076 | 0, /* bitpos */ | |
1077 | complain_overflow_dont,/* complain_on_overflow */ | |
1078 | bfd_elf_generic_reloc, /* special_function */ | |
1079 | "R_ARM_ALU_SB_G0_NC", /* name */ | |
1080 | FALSE, /* partial_inplace */ | |
1081 | 0xffffffff, /* src_mask */ | |
1082 | 0xffffffff, /* dst_mask */ | |
1083 | TRUE), /* pcrel_offset */ | |
1084 | ||
1085 | HOWTO (R_ARM_ALU_SB_G0, /* type */ | |
1086 | 0, /* rightshift */ | |
1087 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1088 | 32, /* bitsize */ | |
1089 | TRUE, /* pc_relative */ | |
1090 | 0, /* bitpos */ | |
1091 | complain_overflow_dont,/* complain_on_overflow */ | |
1092 | bfd_elf_generic_reloc, /* special_function */ | |
1093 | "R_ARM_ALU_SB_G0", /* name */ | |
1094 | FALSE, /* partial_inplace */ | |
1095 | 0xffffffff, /* src_mask */ | |
1096 | 0xffffffff, /* dst_mask */ | |
1097 | TRUE), /* pcrel_offset */ | |
1098 | ||
1099 | HOWTO (R_ARM_ALU_SB_G1_NC, /* type */ | |
1100 | 0, /* rightshift */ | |
1101 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1102 | 32, /* bitsize */ | |
1103 | TRUE, /* pc_relative */ | |
1104 | 0, /* bitpos */ | |
1105 | complain_overflow_dont,/* complain_on_overflow */ | |
1106 | bfd_elf_generic_reloc, /* special_function */ | |
1107 | "R_ARM_ALU_SB_G1_NC", /* name */ | |
1108 | FALSE, /* partial_inplace */ | |
1109 | 0xffffffff, /* src_mask */ | |
1110 | 0xffffffff, /* dst_mask */ | |
1111 | TRUE), /* pcrel_offset */ | |
1112 | ||
1113 | HOWTO (R_ARM_ALU_SB_G1, /* type */ | |
1114 | 0, /* rightshift */ | |
1115 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1116 | 32, /* bitsize */ | |
1117 | TRUE, /* pc_relative */ | |
1118 | 0, /* bitpos */ | |
1119 | complain_overflow_dont,/* complain_on_overflow */ | |
1120 | bfd_elf_generic_reloc, /* special_function */ | |
1121 | "R_ARM_ALU_SB_G1", /* name */ | |
1122 | FALSE, /* partial_inplace */ | |
1123 | 0xffffffff, /* src_mask */ | |
1124 | 0xffffffff, /* dst_mask */ | |
1125 | TRUE), /* pcrel_offset */ | |
1126 | ||
1127 | HOWTO (R_ARM_ALU_SB_G2, /* type */ | |
1128 | 0, /* rightshift */ | |
1129 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1130 | 32, /* bitsize */ | |
1131 | TRUE, /* pc_relative */ | |
1132 | 0, /* bitpos */ | |
1133 | complain_overflow_dont,/* complain_on_overflow */ | |
1134 | bfd_elf_generic_reloc, /* special_function */ | |
1135 | "R_ARM_ALU_SB_G2", /* name */ | |
1136 | FALSE, /* partial_inplace */ | |
1137 | 0xffffffff, /* src_mask */ | |
1138 | 0xffffffff, /* dst_mask */ | |
1139 | TRUE), /* pcrel_offset */ | |
1140 | ||
1141 | HOWTO (R_ARM_LDR_SB_G0, /* type */ | |
1142 | 0, /* rightshift */ | |
1143 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1144 | 32, /* bitsize */ | |
1145 | TRUE, /* pc_relative */ | |
1146 | 0, /* bitpos */ | |
1147 | complain_overflow_dont,/* complain_on_overflow */ | |
1148 | bfd_elf_generic_reloc, /* special_function */ | |
1149 | "R_ARM_LDR_SB_G0", /* name */ | |
1150 | FALSE, /* partial_inplace */ | |
1151 | 0xffffffff, /* src_mask */ | |
1152 | 0xffffffff, /* dst_mask */ | |
1153 | TRUE), /* pcrel_offset */ | |
1154 | ||
1155 | HOWTO (R_ARM_LDR_SB_G1, /* type */ | |
1156 | 0, /* rightshift */ | |
1157 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1158 | 32, /* bitsize */ | |
1159 | TRUE, /* pc_relative */ | |
1160 | 0, /* bitpos */ | |
1161 | complain_overflow_dont,/* complain_on_overflow */ | |
1162 | bfd_elf_generic_reloc, /* special_function */ | |
1163 | "R_ARM_LDR_SB_G1", /* name */ | |
1164 | FALSE, /* partial_inplace */ | |
1165 | 0xffffffff, /* src_mask */ | |
1166 | 0xffffffff, /* dst_mask */ | |
1167 | TRUE), /* pcrel_offset */ | |
1168 | ||
1169 | HOWTO (R_ARM_LDR_SB_G2, /* type */ | |
1170 | 0, /* rightshift */ | |
1171 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1172 | 32, /* bitsize */ | |
1173 | TRUE, /* pc_relative */ | |
1174 | 0, /* bitpos */ | |
1175 | complain_overflow_dont,/* complain_on_overflow */ | |
1176 | bfd_elf_generic_reloc, /* special_function */ | |
1177 | "R_ARM_LDR_SB_G2", /* name */ | |
1178 | FALSE, /* partial_inplace */ | |
1179 | 0xffffffff, /* src_mask */ | |
1180 | 0xffffffff, /* dst_mask */ | |
1181 | TRUE), /* pcrel_offset */ | |
1182 | ||
1183 | HOWTO (R_ARM_LDRS_SB_G0, /* type */ | |
1184 | 0, /* rightshift */ | |
1185 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1186 | 32, /* bitsize */ | |
1187 | TRUE, /* pc_relative */ | |
1188 | 0, /* bitpos */ | |
1189 | complain_overflow_dont,/* complain_on_overflow */ | |
1190 | bfd_elf_generic_reloc, /* special_function */ | |
1191 | "R_ARM_LDRS_SB_G0", /* name */ | |
1192 | FALSE, /* partial_inplace */ | |
1193 | 0xffffffff, /* src_mask */ | |
1194 | 0xffffffff, /* dst_mask */ | |
1195 | TRUE), /* pcrel_offset */ | |
1196 | ||
1197 | HOWTO (R_ARM_LDRS_SB_G1, /* type */ | |
1198 | 0, /* rightshift */ | |
1199 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1200 | 32, /* bitsize */ | |
1201 | TRUE, /* pc_relative */ | |
1202 | 0, /* bitpos */ | |
1203 | complain_overflow_dont,/* complain_on_overflow */ | |
1204 | bfd_elf_generic_reloc, /* special_function */ | |
1205 | "R_ARM_LDRS_SB_G1", /* name */ | |
1206 | FALSE, /* partial_inplace */ | |
1207 | 0xffffffff, /* src_mask */ | |
1208 | 0xffffffff, /* dst_mask */ | |
1209 | TRUE), /* pcrel_offset */ | |
1210 | ||
1211 | HOWTO (R_ARM_LDRS_SB_G2, /* type */ | |
1212 | 0, /* rightshift */ | |
1213 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1214 | 32, /* bitsize */ | |
1215 | TRUE, /* pc_relative */ | |
1216 | 0, /* bitpos */ | |
1217 | complain_overflow_dont,/* complain_on_overflow */ | |
1218 | bfd_elf_generic_reloc, /* special_function */ | |
1219 | "R_ARM_LDRS_SB_G2", /* name */ | |
1220 | FALSE, /* partial_inplace */ | |
1221 | 0xffffffff, /* src_mask */ | |
1222 | 0xffffffff, /* dst_mask */ | |
1223 | TRUE), /* pcrel_offset */ | |
1224 | ||
1225 | HOWTO (R_ARM_LDC_SB_G0, /* type */ | |
1226 | 0, /* rightshift */ | |
1227 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1228 | 32, /* bitsize */ | |
1229 | TRUE, /* pc_relative */ | |
1230 | 0, /* bitpos */ | |
1231 | complain_overflow_dont,/* complain_on_overflow */ | |
1232 | bfd_elf_generic_reloc, /* special_function */ | |
1233 | "R_ARM_LDC_SB_G0", /* name */ | |
1234 | FALSE, /* partial_inplace */ | |
1235 | 0xffffffff, /* src_mask */ | |
1236 | 0xffffffff, /* dst_mask */ | |
1237 | TRUE), /* pcrel_offset */ | |
1238 | ||
1239 | HOWTO (R_ARM_LDC_SB_G1, /* type */ | |
1240 | 0, /* rightshift */ | |
1241 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1242 | 32, /* bitsize */ | |
1243 | TRUE, /* pc_relative */ | |
1244 | 0, /* bitpos */ | |
1245 | complain_overflow_dont,/* complain_on_overflow */ | |
1246 | bfd_elf_generic_reloc, /* special_function */ | |
1247 | "R_ARM_LDC_SB_G1", /* name */ | |
1248 | FALSE, /* partial_inplace */ | |
1249 | 0xffffffff, /* src_mask */ | |
1250 | 0xffffffff, /* dst_mask */ | |
1251 | TRUE), /* pcrel_offset */ | |
1252 | ||
1253 | HOWTO (R_ARM_LDC_SB_G2, /* type */ | |
1254 | 0, /* rightshift */ | |
1255 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1256 | 32, /* bitsize */ | |
1257 | TRUE, /* pc_relative */ | |
1258 | 0, /* bitpos */ | |
1259 | complain_overflow_dont,/* complain_on_overflow */ | |
1260 | bfd_elf_generic_reloc, /* special_function */ | |
1261 | "R_ARM_LDC_SB_G2", /* name */ | |
1262 | FALSE, /* partial_inplace */ | |
1263 | 0xffffffff, /* src_mask */ | |
1264 | 0xffffffff, /* dst_mask */ | |
1265 | TRUE), /* pcrel_offset */ | |
1266 | ||
1267 | /* End of group relocations. */ | |
c19d1205 | 1268 | |
c19d1205 ZW |
1269 | HOWTO (R_ARM_MOVW_BREL_NC, /* type */ |
1270 | 0, /* rightshift */ | |
1271 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1272 | 16, /* bitsize */ | |
1273 | FALSE, /* pc_relative */ | |
1274 | 0, /* bitpos */ | |
1275 | complain_overflow_dont,/* complain_on_overflow */ | |
1276 | bfd_elf_generic_reloc, /* special_function */ | |
1277 | "R_ARM_MOVW_BREL_NC", /* name */ | |
1278 | FALSE, /* partial_inplace */ | |
1279 | 0x0000ffff, /* src_mask */ | |
1280 | 0x0000ffff, /* dst_mask */ | |
1281 | FALSE), /* pcrel_offset */ | |
1282 | ||
1283 | HOWTO (R_ARM_MOVT_BREL, /* type */ | |
1284 | 0, /* rightshift */ | |
1285 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1286 | 16, /* bitsize */ | |
1287 | FALSE, /* pc_relative */ | |
1288 | 0, /* bitpos */ | |
1289 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1290 | bfd_elf_generic_reloc, /* special_function */ | |
1291 | "R_ARM_MOVT_BREL", /* name */ | |
1292 | FALSE, /* partial_inplace */ | |
1293 | 0x0000ffff, /* src_mask */ | |
1294 | 0x0000ffff, /* dst_mask */ | |
1295 | FALSE), /* pcrel_offset */ | |
1296 | ||
1297 | HOWTO (R_ARM_MOVW_BREL, /* type */ | |
1298 | 0, /* rightshift */ | |
1299 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1300 | 16, /* bitsize */ | |
1301 | FALSE, /* pc_relative */ | |
1302 | 0, /* bitpos */ | |
1303 | complain_overflow_dont,/* complain_on_overflow */ | |
1304 | bfd_elf_generic_reloc, /* special_function */ | |
1305 | "R_ARM_MOVW_BREL", /* name */ | |
1306 | FALSE, /* partial_inplace */ | |
1307 | 0x0000ffff, /* src_mask */ | |
1308 | 0x0000ffff, /* dst_mask */ | |
1309 | FALSE), /* pcrel_offset */ | |
1310 | ||
1311 | HOWTO (R_ARM_THM_MOVW_BREL_NC,/* type */ | |
1312 | 0, /* rightshift */ | |
1313 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1314 | 16, /* bitsize */ | |
1315 | FALSE, /* pc_relative */ | |
1316 | 0, /* bitpos */ | |
1317 | complain_overflow_dont,/* complain_on_overflow */ | |
1318 | bfd_elf_generic_reloc, /* special_function */ | |
1319 | "R_ARM_THM_MOVW_BREL_NC",/* name */ | |
1320 | FALSE, /* partial_inplace */ | |
1321 | 0x040f70ff, /* src_mask */ | |
1322 | 0x040f70ff, /* dst_mask */ | |
1323 | FALSE), /* pcrel_offset */ | |
1324 | ||
1325 | HOWTO (R_ARM_THM_MOVT_BREL, /* type */ | |
1326 | 0, /* rightshift */ | |
1327 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1328 | 16, /* bitsize */ | |
1329 | FALSE, /* pc_relative */ | |
1330 | 0, /* bitpos */ | |
1331 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1332 | bfd_elf_generic_reloc, /* special_function */ | |
1333 | "R_ARM_THM_MOVT_BREL", /* name */ | |
1334 | FALSE, /* partial_inplace */ | |
1335 | 0x040f70ff, /* src_mask */ | |
1336 | 0x040f70ff, /* dst_mask */ | |
1337 | FALSE), /* pcrel_offset */ | |
1338 | ||
1339 | HOWTO (R_ARM_THM_MOVW_BREL, /* type */ | |
1340 | 0, /* rightshift */ | |
1341 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1342 | 16, /* bitsize */ | |
1343 | FALSE, /* pc_relative */ | |
1344 | 0, /* bitpos */ | |
1345 | complain_overflow_dont,/* complain_on_overflow */ | |
1346 | bfd_elf_generic_reloc, /* special_function */ | |
1347 | "R_ARM_THM_MOVW_BREL", /* name */ | |
1348 | FALSE, /* partial_inplace */ | |
1349 | 0x040f70ff, /* src_mask */ | |
1350 | 0x040f70ff, /* dst_mask */ | |
1351 | FALSE), /* pcrel_offset */ | |
1352 | ||
1353 | EMPTY_HOWTO (90), /* unallocated */ | |
1354 | EMPTY_HOWTO (91), | |
1355 | EMPTY_HOWTO (92), | |
1356 | EMPTY_HOWTO (93), | |
1357 | ||
1358 | HOWTO (R_ARM_PLT32_ABS, /* type */ | |
1359 | 0, /* rightshift */ | |
1360 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1361 | 32, /* bitsize */ | |
1362 | FALSE, /* pc_relative */ | |
1363 | 0, /* bitpos */ | |
1364 | complain_overflow_dont,/* complain_on_overflow */ | |
1365 | bfd_elf_generic_reloc, /* special_function */ | |
1366 | "R_ARM_PLT32_ABS", /* name */ | |
1367 | FALSE, /* partial_inplace */ | |
1368 | 0xffffffff, /* src_mask */ | |
1369 | 0xffffffff, /* dst_mask */ | |
1370 | FALSE), /* pcrel_offset */ | |
1371 | ||
1372 | HOWTO (R_ARM_GOT_ABS, /* type */ | |
1373 | 0, /* rightshift */ | |
1374 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1375 | 32, /* bitsize */ | |
1376 | FALSE, /* pc_relative */ | |
1377 | 0, /* bitpos */ | |
1378 | complain_overflow_dont,/* complain_on_overflow */ | |
1379 | bfd_elf_generic_reloc, /* special_function */ | |
1380 | "R_ARM_GOT_ABS", /* name */ | |
1381 | FALSE, /* partial_inplace */ | |
1382 | 0xffffffff, /* src_mask */ | |
1383 | 0xffffffff, /* dst_mask */ | |
1384 | FALSE), /* pcrel_offset */ | |
1385 | ||
1386 | HOWTO (R_ARM_GOT_PREL, /* type */ | |
1387 | 0, /* rightshift */ | |
1388 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1389 | 32, /* bitsize */ | |
1390 | TRUE, /* pc_relative */ | |
1391 | 0, /* bitpos */ | |
1392 | complain_overflow_dont, /* complain_on_overflow */ | |
1393 | bfd_elf_generic_reloc, /* special_function */ | |
1394 | "R_ARM_GOT_PREL", /* name */ | |
1395 | FALSE, /* partial_inplace */ | |
1396 | 0xffffffff, /* src_mask */ | |
1397 | 0xffffffff, /* dst_mask */ | |
1398 | TRUE), /* pcrel_offset */ | |
1399 | ||
1400 | HOWTO (R_ARM_GOT_BREL12, /* type */ | |
1401 | 0, /* rightshift */ | |
1402 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1403 | 12, /* bitsize */ | |
1404 | FALSE, /* pc_relative */ | |
1405 | 0, /* bitpos */ | |
1406 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1407 | bfd_elf_generic_reloc, /* special_function */ | |
1408 | "R_ARM_GOT_BREL12", /* name */ | |
1409 | FALSE, /* partial_inplace */ | |
1410 | 0x00000fff, /* src_mask */ | |
1411 | 0x00000fff, /* dst_mask */ | |
1412 | FALSE), /* pcrel_offset */ | |
1413 | ||
1414 | HOWTO (R_ARM_GOTOFF12, /* type */ | |
1415 | 0, /* rightshift */ | |
1416 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1417 | 12, /* bitsize */ | |
1418 | FALSE, /* pc_relative */ | |
1419 | 0, /* bitpos */ | |
1420 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1421 | bfd_elf_generic_reloc, /* special_function */ | |
1422 | "R_ARM_GOTOFF12", /* name */ | |
1423 | FALSE, /* partial_inplace */ | |
1424 | 0x00000fff, /* src_mask */ | |
1425 | 0x00000fff, /* dst_mask */ | |
1426 | FALSE), /* pcrel_offset */ | |
1427 | ||
1428 | EMPTY_HOWTO (R_ARM_GOTRELAX), /* reserved for future GOT-load optimizations */ | |
1429 | ||
1430 | /* GNU extension to record C++ vtable member usage */ | |
1431 | HOWTO (R_ARM_GNU_VTENTRY, /* type */ | |
ba93b8ac DJ |
1432 | 0, /* rightshift */ |
1433 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c19d1205 | 1434 | 0, /* bitsize */ |
ba93b8ac DJ |
1435 | FALSE, /* pc_relative */ |
1436 | 0, /* bitpos */ | |
c19d1205 ZW |
1437 | complain_overflow_dont, /* complain_on_overflow */ |
1438 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
1439 | "R_ARM_GNU_VTENTRY", /* name */ | |
1440 | FALSE, /* partial_inplace */ | |
1441 | 0, /* src_mask */ | |
1442 | 0, /* dst_mask */ | |
1443 | FALSE), /* pcrel_offset */ | |
1444 | ||
1445 | /* GNU extension to record C++ vtable hierarchy */ | |
1446 | HOWTO (R_ARM_GNU_VTINHERIT, /* type */ | |
1447 | 0, /* rightshift */ | |
1448 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1449 | 0, /* bitsize */ | |
1450 | FALSE, /* pc_relative */ | |
1451 | 0, /* bitpos */ | |
1452 | complain_overflow_dont, /* complain_on_overflow */ | |
1453 | NULL, /* special_function */ | |
1454 | "R_ARM_GNU_VTINHERIT", /* name */ | |
1455 | FALSE, /* partial_inplace */ | |
1456 | 0, /* src_mask */ | |
1457 | 0, /* dst_mask */ | |
1458 | FALSE), /* pcrel_offset */ | |
1459 | ||
1460 | HOWTO (R_ARM_THM_JUMP11, /* type */ | |
1461 | 1, /* rightshift */ | |
1462 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1463 | 11, /* bitsize */ | |
1464 | TRUE, /* pc_relative */ | |
1465 | 0, /* bitpos */ | |
1466 | complain_overflow_signed, /* complain_on_overflow */ | |
1467 | bfd_elf_generic_reloc, /* special_function */ | |
1468 | "R_ARM_THM_JUMP11", /* name */ | |
1469 | FALSE, /* partial_inplace */ | |
1470 | 0x000007ff, /* src_mask */ | |
1471 | 0x000007ff, /* dst_mask */ | |
1472 | TRUE), /* pcrel_offset */ | |
1473 | ||
1474 | HOWTO (R_ARM_THM_JUMP8, /* type */ | |
1475 | 1, /* rightshift */ | |
1476 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1477 | 8, /* bitsize */ | |
1478 | TRUE, /* pc_relative */ | |
1479 | 0, /* bitpos */ | |
1480 | complain_overflow_signed, /* complain_on_overflow */ | |
1481 | bfd_elf_generic_reloc, /* special_function */ | |
1482 | "R_ARM_THM_JUMP8", /* name */ | |
1483 | FALSE, /* partial_inplace */ | |
1484 | 0x000000ff, /* src_mask */ | |
1485 | 0x000000ff, /* dst_mask */ | |
1486 | TRUE), /* pcrel_offset */ | |
ba93b8ac | 1487 | |
c19d1205 ZW |
1488 | /* TLS relocations */ |
1489 | HOWTO (R_ARM_TLS_GD32, /* type */ | |
ba93b8ac DJ |
1490 | 0, /* rightshift */ |
1491 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1492 | 32, /* bitsize */ | |
1493 | FALSE, /* pc_relative */ | |
1494 | 0, /* bitpos */ | |
1495 | complain_overflow_bitfield,/* complain_on_overflow */ | |
c19d1205 ZW |
1496 | NULL, /* special_function */ |
1497 | "R_ARM_TLS_GD32", /* name */ | |
ba93b8ac DJ |
1498 | TRUE, /* partial_inplace */ |
1499 | 0xffffffff, /* src_mask */ | |
1500 | 0xffffffff, /* dst_mask */ | |
c19d1205 | 1501 | FALSE), /* pcrel_offset */ |
ba93b8ac | 1502 | |
ba93b8ac DJ |
1503 | HOWTO (R_ARM_TLS_LDM32, /* type */ |
1504 | 0, /* rightshift */ | |
1505 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1506 | 32, /* bitsize */ | |
1507 | FALSE, /* pc_relative */ | |
1508 | 0, /* bitpos */ | |
1509 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1510 | bfd_elf_generic_reloc, /* special_function */ | |
1511 | "R_ARM_TLS_LDM32", /* name */ | |
1512 | TRUE, /* partial_inplace */ | |
1513 | 0xffffffff, /* src_mask */ | |
1514 | 0xffffffff, /* dst_mask */ | |
c19d1205 | 1515 | FALSE), /* pcrel_offset */ |
ba93b8ac | 1516 | |
c19d1205 | 1517 | HOWTO (R_ARM_TLS_LDO32, /* type */ |
ba93b8ac DJ |
1518 | 0, /* rightshift */ |
1519 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1520 | 32, /* bitsize */ | |
1521 | FALSE, /* pc_relative */ | |
1522 | 0, /* bitpos */ | |
1523 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1524 | bfd_elf_generic_reloc, /* special_function */ | |
c19d1205 | 1525 | "R_ARM_TLS_LDO32", /* name */ |
ba93b8ac DJ |
1526 | TRUE, /* partial_inplace */ |
1527 | 0xffffffff, /* src_mask */ | |
1528 | 0xffffffff, /* dst_mask */ | |
c19d1205 | 1529 | FALSE), /* pcrel_offset */ |
ba93b8ac | 1530 | |
ba93b8ac DJ |
1531 | HOWTO (R_ARM_TLS_IE32, /* type */ |
1532 | 0, /* rightshift */ | |
1533 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1534 | 32, /* bitsize */ | |
1535 | FALSE, /* pc_relative */ | |
1536 | 0, /* bitpos */ | |
1537 | complain_overflow_bitfield,/* complain_on_overflow */ | |
1538 | NULL, /* special_function */ | |
1539 | "R_ARM_TLS_IE32", /* name */ | |
1540 | TRUE, /* partial_inplace */ | |
1541 | 0xffffffff, /* src_mask */ | |
1542 | 0xffffffff, /* dst_mask */ | |
c19d1205 | 1543 | FALSE), /* pcrel_offset */ |
7f266840 | 1544 | |
c19d1205 | 1545 | HOWTO (R_ARM_TLS_LE32, /* type */ |
7f266840 DJ |
1546 | 0, /* rightshift */ |
1547 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c19d1205 | 1548 | 32, /* bitsize */ |
7f266840 DJ |
1549 | FALSE, /* pc_relative */ |
1550 | 0, /* bitpos */ | |
c19d1205 ZW |
1551 | complain_overflow_bitfield,/* complain_on_overflow */ |
1552 | bfd_elf_generic_reloc, /* special_function */ | |
1553 | "R_ARM_TLS_LE32", /* name */ | |
1554 | TRUE, /* partial_inplace */ | |
1555 | 0xffffffff, /* src_mask */ | |
1556 | 0xffffffff, /* dst_mask */ | |
1557 | FALSE), /* pcrel_offset */ | |
7f266840 | 1558 | |
c19d1205 ZW |
1559 | HOWTO (R_ARM_TLS_LDO12, /* type */ |
1560 | 0, /* rightshift */ | |
1561 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1562 | 12, /* bitsize */ | |
1563 | FALSE, /* pc_relative */ | |
7f266840 | 1564 | 0, /* bitpos */ |
c19d1205 | 1565 | complain_overflow_bitfield,/* complain_on_overflow */ |
7f266840 | 1566 | bfd_elf_generic_reloc, /* special_function */ |
c19d1205 | 1567 | "R_ARM_TLS_LDO12", /* name */ |
7f266840 | 1568 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
1569 | 0x00000fff, /* src_mask */ |
1570 | 0x00000fff, /* dst_mask */ | |
1571 | FALSE), /* pcrel_offset */ | |
7f266840 | 1572 | |
c19d1205 ZW |
1573 | HOWTO (R_ARM_TLS_LE12, /* type */ |
1574 | 0, /* rightshift */ | |
1575 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1576 | 12, /* bitsize */ | |
1577 | FALSE, /* pc_relative */ | |
7f266840 | 1578 | 0, /* bitpos */ |
c19d1205 | 1579 | complain_overflow_bitfield,/* complain_on_overflow */ |
7f266840 | 1580 | bfd_elf_generic_reloc, /* special_function */ |
c19d1205 | 1581 | "R_ARM_TLS_LE12", /* name */ |
7f266840 | 1582 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
1583 | 0x00000fff, /* src_mask */ |
1584 | 0x00000fff, /* dst_mask */ | |
1585 | FALSE), /* pcrel_offset */ | |
7f266840 | 1586 | |
c19d1205 | 1587 | HOWTO (R_ARM_TLS_IE12GP, /* type */ |
7f266840 DJ |
1588 | 0, /* rightshift */ |
1589 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c19d1205 ZW |
1590 | 12, /* bitsize */ |
1591 | FALSE, /* pc_relative */ | |
7f266840 | 1592 | 0, /* bitpos */ |
c19d1205 | 1593 | complain_overflow_bitfield,/* complain_on_overflow */ |
7f266840 | 1594 | bfd_elf_generic_reloc, /* special_function */ |
c19d1205 | 1595 | "R_ARM_TLS_IE12GP", /* name */ |
7f266840 | 1596 | FALSE, /* partial_inplace */ |
c19d1205 ZW |
1597 | 0x00000fff, /* src_mask */ |
1598 | 0x00000fff, /* dst_mask */ | |
1599 | FALSE), /* pcrel_offset */ | |
1600 | }; | |
1601 | ||
1602 | /* 112-127 private relocations | |
1603 | 128 R_ARM_ME_TOO, obsolete | |
1604 | 129-255 unallocated in AAELF. | |
7f266840 | 1605 | |
c19d1205 ZW |
1606 | 249-255 extended, currently unused, relocations: */ |
1607 | ||
4962c51a | 1608 | static reloc_howto_type elf32_arm_howto_table_2[4] = |
7f266840 DJ |
1609 | { |
1610 | HOWTO (R_ARM_RREL32, /* type */ | |
1611 | 0, /* rightshift */ | |
1612 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1613 | 0, /* bitsize */ | |
1614 | FALSE, /* pc_relative */ | |
1615 | 0, /* bitpos */ | |
1616 | complain_overflow_dont,/* complain_on_overflow */ | |
1617 | bfd_elf_generic_reloc, /* special_function */ | |
1618 | "R_ARM_RREL32", /* name */ | |
1619 | FALSE, /* partial_inplace */ | |
1620 | 0, /* src_mask */ | |
1621 | 0, /* dst_mask */ | |
1622 | FALSE), /* pcrel_offset */ | |
1623 | ||
1624 | HOWTO (R_ARM_RABS32, /* type */ | |
1625 | 0, /* rightshift */ | |
1626 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1627 | 0, /* bitsize */ | |
1628 | FALSE, /* pc_relative */ | |
1629 | 0, /* bitpos */ | |
1630 | complain_overflow_dont,/* complain_on_overflow */ | |
1631 | bfd_elf_generic_reloc, /* special_function */ | |
1632 | "R_ARM_RABS32", /* name */ | |
1633 | FALSE, /* partial_inplace */ | |
1634 | 0, /* src_mask */ | |
1635 | 0, /* dst_mask */ | |
1636 | FALSE), /* pcrel_offset */ | |
1637 | ||
1638 | HOWTO (R_ARM_RPC24, /* type */ | |
1639 | 0, /* rightshift */ | |
1640 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1641 | 0, /* bitsize */ | |
1642 | FALSE, /* pc_relative */ | |
1643 | 0, /* bitpos */ | |
1644 | complain_overflow_dont,/* complain_on_overflow */ | |
1645 | bfd_elf_generic_reloc, /* special_function */ | |
1646 | "R_ARM_RPC24", /* name */ | |
1647 | FALSE, /* partial_inplace */ | |
1648 | 0, /* src_mask */ | |
1649 | 0, /* dst_mask */ | |
1650 | FALSE), /* pcrel_offset */ | |
1651 | ||
1652 | HOWTO (R_ARM_RBASE, /* type */ | |
1653 | 0, /* rightshift */ | |
1654 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1655 | 0, /* bitsize */ | |
1656 | FALSE, /* pc_relative */ | |
1657 | 0, /* bitpos */ | |
1658 | complain_overflow_dont,/* complain_on_overflow */ | |
1659 | bfd_elf_generic_reloc, /* special_function */ | |
1660 | "R_ARM_RBASE", /* name */ | |
1661 | FALSE, /* partial_inplace */ | |
1662 | 0, /* src_mask */ | |
1663 | 0, /* dst_mask */ | |
1664 | FALSE) /* pcrel_offset */ | |
1665 | }; | |
1666 | ||
1667 | static reloc_howto_type * | |
1668 | elf32_arm_howto_from_type (unsigned int r_type) | |
1669 | { | |
c19d1205 ZW |
1670 | if (r_type < NUM_ELEM (elf32_arm_howto_table_1)) |
1671 | return &elf32_arm_howto_table_1[r_type]; | |
ba93b8ac | 1672 | |
c19d1205 ZW |
1673 | if (r_type >= R_ARM_RREL32 |
1674 | && r_type < R_ARM_RREL32 + NUM_ELEM (elf32_arm_howto_table_2)) | |
4962c51a | 1675 | return &elf32_arm_howto_table_2[r_type - R_ARM_RREL32]; |
7f266840 | 1676 | |
c19d1205 | 1677 | return NULL; |
7f266840 DJ |
1678 | } |
1679 | ||
1680 | static void | |
1681 | elf32_arm_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED, arelent * bfd_reloc, | |
1682 | Elf_Internal_Rela * elf_reloc) | |
1683 | { | |
1684 | unsigned int r_type; | |
1685 | ||
1686 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
1687 | bfd_reloc->howto = elf32_arm_howto_from_type (r_type); | |
1688 | } | |
1689 | ||
1690 | struct elf32_arm_reloc_map | |
1691 | { | |
1692 | bfd_reloc_code_real_type bfd_reloc_val; | |
1693 | unsigned char elf_reloc_val; | |
1694 | }; | |
1695 | ||
1696 | /* All entries in this list must also be present in elf32_arm_howto_table. */ | |
1697 | static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] = | |
1698 | { | |
1699 | {BFD_RELOC_NONE, R_ARM_NONE}, | |
1700 | {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24}, | |
39b41c9c PB |
1701 | {BFD_RELOC_ARM_PCREL_CALL, R_ARM_CALL}, |
1702 | {BFD_RELOC_ARM_PCREL_JUMP, R_ARM_JUMP24}, | |
7f266840 DJ |
1703 | {BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25}, |
1704 | {BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22}, | |
1705 | {BFD_RELOC_32, R_ARM_ABS32}, | |
1706 | {BFD_RELOC_32_PCREL, R_ARM_REL32}, | |
1707 | {BFD_RELOC_8, R_ARM_ABS8}, | |
1708 | {BFD_RELOC_16, R_ARM_ABS16}, | |
1709 | {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12}, | |
1710 | {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5}, | |
c19d1205 ZW |
1711 | {BFD_RELOC_THUMB_PCREL_BRANCH25, R_ARM_THM_JUMP24}, |
1712 | {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_CALL}, | |
1713 | {BFD_RELOC_THUMB_PCREL_BRANCH12, R_ARM_THM_JUMP11}, | |
1714 | {BFD_RELOC_THUMB_PCREL_BRANCH20, R_ARM_THM_JUMP19}, | |
1715 | {BFD_RELOC_THUMB_PCREL_BRANCH9, R_ARM_THM_JUMP8}, | |
1716 | {BFD_RELOC_THUMB_PCREL_BRANCH7, R_ARM_THM_JUMP6}, | |
7f266840 DJ |
1717 | {BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT}, |
1718 | {BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT}, | |
1719 | {BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE}, | |
c19d1205 | 1720 | {BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF32}, |
7f266840 DJ |
1721 | {BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC}, |
1722 | {BFD_RELOC_ARM_GOT32, R_ARM_GOT32}, | |
1723 | {BFD_RELOC_ARM_PLT32, R_ARM_PLT32}, | |
1724 | {BFD_RELOC_ARM_TARGET1, R_ARM_TARGET1}, | |
1725 | {BFD_RELOC_ARM_ROSEGREL32, R_ARM_ROSEGREL32}, | |
1726 | {BFD_RELOC_ARM_SBREL32, R_ARM_SBREL32}, | |
1727 | {BFD_RELOC_ARM_PREL31, R_ARM_PREL31}, | |
ba93b8ac DJ |
1728 | {BFD_RELOC_ARM_TARGET2, R_ARM_TARGET2}, |
1729 | {BFD_RELOC_ARM_PLT32, R_ARM_PLT32}, | |
1730 | {BFD_RELOC_ARM_TLS_GD32, R_ARM_TLS_GD32}, | |
1731 | {BFD_RELOC_ARM_TLS_LDO32, R_ARM_TLS_LDO32}, | |
1732 | {BFD_RELOC_ARM_TLS_LDM32, R_ARM_TLS_LDM32}, | |
1733 | {BFD_RELOC_ARM_TLS_DTPMOD32, R_ARM_TLS_DTPMOD32}, | |
1734 | {BFD_RELOC_ARM_TLS_DTPOFF32, R_ARM_TLS_DTPOFF32}, | |
1735 | {BFD_RELOC_ARM_TLS_TPOFF32, R_ARM_TLS_TPOFF32}, | |
1736 | {BFD_RELOC_ARM_TLS_IE32, R_ARM_TLS_IE32}, | |
1737 | {BFD_RELOC_ARM_TLS_LE32, R_ARM_TLS_LE32}, | |
c19d1205 ZW |
1738 | {BFD_RELOC_VTABLE_INHERIT, R_ARM_GNU_VTINHERIT}, |
1739 | {BFD_RELOC_VTABLE_ENTRY, R_ARM_GNU_VTENTRY}, | |
b6895b4f PB |
1740 | {BFD_RELOC_ARM_MOVW, R_ARM_MOVW_ABS_NC}, |
1741 | {BFD_RELOC_ARM_MOVT, R_ARM_MOVT_ABS}, | |
1742 | {BFD_RELOC_ARM_MOVW_PCREL, R_ARM_MOVW_PREL_NC}, | |
1743 | {BFD_RELOC_ARM_MOVT_PCREL, R_ARM_MOVT_PREL}, | |
1744 | {BFD_RELOC_ARM_THUMB_MOVW, R_ARM_THM_MOVW_ABS_NC}, | |
1745 | {BFD_RELOC_ARM_THUMB_MOVT, R_ARM_THM_MOVT_ABS}, | |
1746 | {BFD_RELOC_ARM_THUMB_MOVW_PCREL, R_ARM_THM_MOVW_PREL_NC}, | |
1747 | {BFD_RELOC_ARM_THUMB_MOVT_PCREL, R_ARM_THM_MOVT_PREL}, | |
4962c51a MS |
1748 | {BFD_RELOC_ARM_ALU_PC_G0_NC, R_ARM_ALU_PC_G0_NC}, |
1749 | {BFD_RELOC_ARM_ALU_PC_G0, R_ARM_ALU_PC_G0}, | |
1750 | {BFD_RELOC_ARM_ALU_PC_G1_NC, R_ARM_ALU_PC_G1_NC}, | |
1751 | {BFD_RELOC_ARM_ALU_PC_G1, R_ARM_ALU_PC_G1}, | |
1752 | {BFD_RELOC_ARM_ALU_PC_G2, R_ARM_ALU_PC_G2}, | |
1753 | {BFD_RELOC_ARM_LDR_PC_G0, R_ARM_LDR_PC_G0}, | |
1754 | {BFD_RELOC_ARM_LDR_PC_G1, R_ARM_LDR_PC_G1}, | |
1755 | {BFD_RELOC_ARM_LDR_PC_G2, R_ARM_LDR_PC_G2}, | |
1756 | {BFD_RELOC_ARM_LDRS_PC_G0, R_ARM_LDRS_PC_G0}, | |
1757 | {BFD_RELOC_ARM_LDRS_PC_G1, R_ARM_LDRS_PC_G1}, | |
1758 | {BFD_RELOC_ARM_LDRS_PC_G2, R_ARM_LDRS_PC_G2}, | |
1759 | {BFD_RELOC_ARM_LDC_PC_G0, R_ARM_LDC_PC_G0}, | |
1760 | {BFD_RELOC_ARM_LDC_PC_G1, R_ARM_LDC_PC_G1}, | |
1761 | {BFD_RELOC_ARM_LDC_PC_G2, R_ARM_LDC_PC_G2}, | |
1762 | {BFD_RELOC_ARM_ALU_SB_G0_NC, R_ARM_ALU_SB_G0_NC}, | |
1763 | {BFD_RELOC_ARM_ALU_SB_G0, R_ARM_ALU_SB_G0}, | |
1764 | {BFD_RELOC_ARM_ALU_SB_G1_NC, R_ARM_ALU_SB_G1_NC}, | |
1765 | {BFD_RELOC_ARM_ALU_SB_G1, R_ARM_ALU_SB_G1}, | |
1766 | {BFD_RELOC_ARM_ALU_SB_G2, R_ARM_ALU_SB_G2}, | |
1767 | {BFD_RELOC_ARM_LDR_SB_G0, R_ARM_LDR_SB_G0}, | |
1768 | {BFD_RELOC_ARM_LDR_SB_G1, R_ARM_LDR_SB_G1}, | |
1769 | {BFD_RELOC_ARM_LDR_SB_G2, R_ARM_LDR_SB_G2}, | |
1770 | {BFD_RELOC_ARM_LDRS_SB_G0, R_ARM_LDRS_SB_G0}, | |
1771 | {BFD_RELOC_ARM_LDRS_SB_G1, R_ARM_LDRS_SB_G1}, | |
1772 | {BFD_RELOC_ARM_LDRS_SB_G2, R_ARM_LDRS_SB_G2}, | |
1773 | {BFD_RELOC_ARM_LDC_SB_G0, R_ARM_LDC_SB_G0}, | |
1774 | {BFD_RELOC_ARM_LDC_SB_G1, R_ARM_LDC_SB_G1}, | |
1775 | {BFD_RELOC_ARM_LDC_SB_G2, R_ARM_LDC_SB_G2} | |
7f266840 DJ |
1776 | }; |
1777 | ||
1778 | static reloc_howto_type * | |
f1c71a59 ZW |
1779 | elf32_arm_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1780 | bfd_reloc_code_real_type code) | |
7f266840 DJ |
1781 | { |
1782 | unsigned int i; | |
c19d1205 ZW |
1783 | for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++) |
1784 | if (elf32_arm_reloc_map[i].bfd_reloc_val == code) | |
1785 | return elf32_arm_howto_from_type (elf32_arm_reloc_map[i].elf_reloc_val); | |
7f266840 | 1786 | |
c19d1205 | 1787 | return NULL; |
7f266840 DJ |
1788 | } |
1789 | ||
1790 | /* Support for core dump NOTE sections */ | |
1791 | static bfd_boolean | |
f1c71a59 | 1792 | elf32_arm_nabi_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
7f266840 DJ |
1793 | { |
1794 | int offset; | |
1795 | size_t size; | |
1796 | ||
1797 | switch (note->descsz) | |
1798 | { | |
1799 | default: | |
1800 | return FALSE; | |
1801 | ||
1802 | case 148: /* Linux/ARM 32-bit*/ | |
1803 | /* pr_cursig */ | |
1804 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
1805 | ||
1806 | /* pr_pid */ | |
1807 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
1808 | ||
1809 | /* pr_reg */ | |
1810 | offset = 72; | |
1811 | size = 72; | |
1812 | ||
1813 | break; | |
1814 | } | |
1815 | ||
1816 | /* Make a ".reg/999" section. */ | |
1817 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
1818 | size, note->descpos + offset); | |
1819 | } | |
1820 | ||
1821 | static bfd_boolean | |
f1c71a59 | 1822 | elf32_arm_nabi_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
7f266840 DJ |
1823 | { |
1824 | switch (note->descsz) | |
1825 | { | |
1826 | default: | |
1827 | return FALSE; | |
1828 | ||
1829 | case 124: /* Linux/ARM elf_prpsinfo */ | |
1830 | elf_tdata (abfd)->core_program | |
1831 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
1832 | elf_tdata (abfd)->core_command | |
1833 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
1834 | } | |
1835 | ||
1836 | /* Note that for some reason, a spurious space is tacked | |
1837 | onto the end of the args in some (at least one anyway) | |
1838 | implementations, so strip it off if it exists. */ | |
1839 | ||
1840 | { | |
1841 | char *command = elf_tdata (abfd)->core_command; | |
1842 | int n = strlen (command); | |
1843 | ||
1844 | if (0 < n && command[n - 1] == ' ') | |
1845 | command[n - 1] = '\0'; | |
1846 | } | |
1847 | ||
1848 | return TRUE; | |
1849 | } | |
1850 | ||
1851 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec | |
1852 | #define TARGET_LITTLE_NAME "elf32-littlearm" | |
1853 | #define TARGET_BIG_SYM bfd_elf32_bigarm_vec | |
1854 | #define TARGET_BIG_NAME "elf32-bigarm" | |
1855 | ||
1856 | #define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus | |
1857 | #define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo | |
1858 | ||
252b5132 RH |
1859 | typedef unsigned long int insn32; |
1860 | typedef unsigned short int insn16; | |
1861 | ||
3a4a14e9 PB |
1862 | /* In lieu of proper flags, assume all EABIv4 or later objects are |
1863 | interworkable. */ | |
57e8b36a | 1864 | #define INTERWORK_FLAG(abfd) \ |
3a4a14e9 | 1865 | (EF_ARM_EABI_VERSION (elf_elfheader (abfd)->e_flags) >= EF_ARM_EABI_VER4 \ |
85a84e7a | 1866 | || (elf_elfheader (abfd)->e_flags & EF_ARM_INTERWORK)) |
9b485d32 | 1867 | |
252b5132 RH |
1868 | /* The linker script knows the section names for placement. |
1869 | The entry_names are used to do simple name mangling on the stubs. | |
1870 | Given a function name, and its type, the stub can be found. The | |
9b485d32 | 1871 | name can be changed. The only requirement is the %s be present. */ |
252b5132 RH |
1872 | #define THUMB2ARM_GLUE_SECTION_NAME ".glue_7t" |
1873 | #define THUMB2ARM_GLUE_ENTRY_NAME "__%s_from_thumb" | |
1874 | ||
1875 | #define ARM2THUMB_GLUE_SECTION_NAME ".glue_7" | |
1876 | #define ARM2THUMB_GLUE_ENTRY_NAME "__%s_from_arm" | |
1877 | ||
c7b8f16e JB |
1878 | #define VFP11_ERRATUM_VENEER_SECTION_NAME ".vfp11_veneer" |
1879 | #define VFP11_ERRATUM_VENEER_ENTRY_NAME "__vfp11_veneer_%x" | |
1880 | ||
252b5132 RH |
1881 | /* The name of the dynamic interpreter. This is put in the .interp |
1882 | section. */ | |
1883 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
1884 | ||
5e681ec4 PB |
1885 | #ifdef FOUR_WORD_PLT |
1886 | ||
252b5132 RH |
1887 | /* The first entry in a procedure linkage table looks like |
1888 | this. It is set up so that any shared library function that is | |
59f2c4e7 | 1889 | called before the relocation has been set up calls the dynamic |
9b485d32 | 1890 | linker first. */ |
e5a52504 | 1891 | static const bfd_vma elf32_arm_plt0_entry [] = |
5e681ec4 PB |
1892 | { |
1893 | 0xe52de004, /* str lr, [sp, #-4]! */ | |
1894 | 0xe59fe010, /* ldr lr, [pc, #16] */ | |
1895 | 0xe08fe00e, /* add lr, pc, lr */ | |
1896 | 0xe5bef008, /* ldr pc, [lr, #8]! */ | |
1897 | }; | |
1898 | ||
1899 | /* Subsequent entries in a procedure linkage table look like | |
1900 | this. */ | |
e5a52504 | 1901 | static const bfd_vma elf32_arm_plt_entry [] = |
5e681ec4 PB |
1902 | { |
1903 | 0xe28fc600, /* add ip, pc, #NN */ | |
1904 | 0xe28cca00, /* add ip, ip, #NN */ | |
1905 | 0xe5bcf000, /* ldr pc, [ip, #NN]! */ | |
1906 | 0x00000000, /* unused */ | |
1907 | }; | |
1908 | ||
1909 | #else | |
1910 | ||
5e681ec4 PB |
1911 | /* The first entry in a procedure linkage table looks like |
1912 | this. It is set up so that any shared library function that is | |
1913 | called before the relocation has been set up calls the dynamic | |
1914 | linker first. */ | |
e5a52504 | 1915 | static const bfd_vma elf32_arm_plt0_entry [] = |
917583ad | 1916 | { |
5e681ec4 PB |
1917 | 0xe52de004, /* str lr, [sp, #-4]! */ |
1918 | 0xe59fe004, /* ldr lr, [pc, #4] */ | |
1919 | 0xe08fe00e, /* add lr, pc, lr */ | |
1920 | 0xe5bef008, /* ldr pc, [lr, #8]! */ | |
1921 | 0x00000000, /* &GOT[0] - . */ | |
917583ad | 1922 | }; |
252b5132 RH |
1923 | |
1924 | /* Subsequent entries in a procedure linkage table look like | |
1925 | this. */ | |
e5a52504 | 1926 | static const bfd_vma elf32_arm_plt_entry [] = |
5e681ec4 PB |
1927 | { |
1928 | 0xe28fc600, /* add ip, pc, #0xNN00000 */ | |
1929 | 0xe28cca00, /* add ip, ip, #0xNN000 */ | |
1930 | 0xe5bcf000, /* ldr pc, [ip, #0xNNN]! */ | |
1931 | }; | |
1932 | ||
1933 | #endif | |
252b5132 | 1934 | |
00a97672 RS |
1935 | /* The format of the first entry in the procedure linkage table |
1936 | for a VxWorks executable. */ | |
1937 | static const bfd_vma elf32_arm_vxworks_exec_plt0_entry[] = | |
1938 | { | |
1939 | 0xe52dc008, /* str ip,[sp,#-8]! */ | |
1940 | 0xe59fc000, /* ldr ip,[pc] */ | |
1941 | 0xe59cf008, /* ldr pc,[ip,#8] */ | |
1942 | 0x00000000, /* .long _GLOBAL_OFFSET_TABLE_ */ | |
1943 | }; | |
1944 | ||
1945 | /* The format of subsequent entries in a VxWorks executable. */ | |
1946 | static const bfd_vma elf32_arm_vxworks_exec_plt_entry[] = | |
1947 | { | |
1948 | 0xe59fc000, /* ldr ip,[pc] */ | |
1949 | 0xe59cf000, /* ldr pc,[ip] */ | |
1950 | 0x00000000, /* .long @got */ | |
1951 | 0xe59fc000, /* ldr ip,[pc] */ | |
1952 | 0xea000000, /* b _PLT */ | |
1953 | 0x00000000, /* .long @pltindex*sizeof(Elf32_Rela) */ | |
1954 | }; | |
1955 | ||
1956 | /* The format of entries in a VxWorks shared library. */ | |
1957 | static const bfd_vma elf32_arm_vxworks_shared_plt_entry[] = | |
1958 | { | |
1959 | 0xe59fc000, /* ldr ip,[pc] */ | |
1960 | 0xe79cf009, /* ldr pc,[ip,r9] */ | |
1961 | 0x00000000, /* .long @got */ | |
1962 | 0xe59fc000, /* ldr ip,[pc] */ | |
1963 | 0xe599f008, /* ldr pc,[r9,#8] */ | |
1964 | 0x00000000, /* .long @pltindex*sizeof(Elf32_Rela) */ | |
1965 | }; | |
1966 | ||
b7693d02 DJ |
1967 | /* An initial stub used if the PLT entry is referenced from Thumb code. */ |
1968 | #define PLT_THUMB_STUB_SIZE 4 | |
1969 | static const bfd_vma elf32_arm_plt_thumb_stub [] = | |
1970 | { | |
1971 | 0x4778, /* bx pc */ | |
1972 | 0x46c0 /* nop */ | |
1973 | }; | |
1974 | ||
e5a52504 MM |
1975 | /* The entries in a PLT when using a DLL-based target with multiple |
1976 | address spaces. */ | |
1977 | static const bfd_vma elf32_arm_symbian_plt_entry [] = | |
1978 | { | |
83a358aa | 1979 | 0xe51ff004, /* ldr pc, [pc, #-4] */ |
e5a52504 MM |
1980 | 0x00000000, /* dcd R_ARM_GLOB_DAT(X) */ |
1981 | }; | |
1982 | ||
e489d0ae PB |
1983 | /* Used to build a map of a section. This is required for mixed-endian |
1984 | code/data. */ | |
1985 | ||
1986 | typedef struct elf32_elf_section_map | |
1987 | { | |
1988 | bfd_vma vma; | |
1989 | char type; | |
1990 | } | |
1991 | elf32_arm_section_map; | |
1992 | ||
c7b8f16e JB |
1993 | /* Information about a VFP11 erratum veneer, or a branch to such a veneer. */ |
1994 | ||
1995 | typedef enum | |
1996 | { | |
1997 | VFP11_ERRATUM_BRANCH_TO_ARM_VENEER, | |
1998 | VFP11_ERRATUM_BRANCH_TO_THUMB_VENEER, | |
1999 | VFP11_ERRATUM_ARM_VENEER, | |
2000 | VFP11_ERRATUM_THUMB_VENEER | |
2001 | } | |
2002 | elf32_vfp11_erratum_type; | |
2003 | ||
2004 | typedef struct elf32_vfp11_erratum_list | |
2005 | { | |
2006 | struct elf32_vfp11_erratum_list *next; | |
2007 | bfd_vma vma; | |
2008 | union | |
2009 | { | |
2010 | struct | |
2011 | { | |
2012 | struct elf32_vfp11_erratum_list *veneer; | |
2013 | unsigned int vfp_insn; | |
2014 | } b; | |
2015 | struct | |
2016 | { | |
2017 | struct elf32_vfp11_erratum_list *branch; | |
2018 | unsigned int id; | |
2019 | } v; | |
2020 | } u; | |
2021 | elf32_vfp11_erratum_type type; | |
2022 | } | |
2023 | elf32_vfp11_erratum_list; | |
2024 | ||
8e3de13a | 2025 | typedef struct _arm_elf_section_data |
e489d0ae PB |
2026 | { |
2027 | struct bfd_elf_section_data elf; | |
8e3de13a | 2028 | unsigned int mapcount; |
c7b8f16e | 2029 | unsigned int mapsize; |
e489d0ae | 2030 | elf32_arm_section_map *map; |
c7b8f16e JB |
2031 | unsigned int erratumcount; |
2032 | elf32_vfp11_erratum_list *erratumlist; | |
8e3de13a NC |
2033 | } |
2034 | _arm_elf_section_data; | |
e489d0ae PB |
2035 | |
2036 | #define elf32_arm_section_data(sec) \ | |
8e3de13a | 2037 | ((_arm_elf_section_data *) elf_section_data (sec)) |
e489d0ae | 2038 | |
ba93b8ac DJ |
2039 | /* The size of the thread control block. */ |
2040 | #define TCB_SIZE 8 | |
2041 | ||
ee065d83 PB |
2042 | #define NUM_KNOWN_ATTRIBUTES 32 |
2043 | ||
2044 | typedef struct aeabi_attribute | |
2045 | { | |
2046 | int type; | |
2047 | unsigned int i; | |
2048 | char *s; | |
2049 | } aeabi_attribute; | |
2050 | ||
2051 | typedef struct aeabi_attribute_list | |
2052 | { | |
2053 | struct aeabi_attribute_list *next; | |
2054 | int tag; | |
2055 | aeabi_attribute attr; | |
2056 | } aeabi_attribute_list; | |
2057 | ||
ba93b8ac DJ |
2058 | struct elf32_arm_obj_tdata |
2059 | { | |
2060 | struct elf_obj_tdata root; | |
2061 | ||
2062 | /* tls_type for each local got entry. */ | |
2063 | char *local_got_tls_type; | |
ee065d83 PB |
2064 | |
2065 | aeabi_attribute known_eabi_attributes[NUM_KNOWN_ATTRIBUTES]; | |
2066 | aeabi_attribute_list *other_eabi_attributes; | |
ba93b8ac DJ |
2067 | }; |
2068 | ||
2069 | #define elf32_arm_tdata(abfd) \ | |
2070 | ((struct elf32_arm_obj_tdata *) (abfd)->tdata.any) | |
2071 | ||
2072 | #define elf32_arm_local_got_tls_type(abfd) \ | |
2073 | (elf32_arm_tdata (abfd)->local_got_tls_type) | |
2074 | ||
2075 | static bfd_boolean | |
2076 | elf32_arm_mkobject (bfd *abfd) | |
2077 | { | |
ba93b8ac | 2078 | if (abfd->tdata.any == NULL) |
62d7a5f6 AM |
2079 | { |
2080 | bfd_size_type amt = sizeof (struct elf32_arm_obj_tdata); | |
2081 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
2082 | if (abfd->tdata.any == NULL) | |
2083 | return FALSE; | |
2084 | } | |
2085 | return bfd_elf_mkobject (abfd); | |
ba93b8ac DJ |
2086 | } |
2087 | ||
252b5132 RH |
2088 | /* The ARM linker needs to keep track of the number of relocs that it |
2089 | decides to copy in check_relocs for each symbol. This is so that | |
2090 | it can discard PC relative relocs if it doesn't need them when | |
2091 | linking with -Bsymbolic. We store the information in a field | |
2092 | extending the regular ELF linker hash table. */ | |
2093 | ||
ba93b8ac DJ |
2094 | /* This structure keeps track of the number of relocs we have copied |
2095 | for a given symbol. */ | |
5e681ec4 | 2096 | struct elf32_arm_relocs_copied |
917583ad NC |
2097 | { |
2098 | /* Next section. */ | |
5e681ec4 | 2099 | struct elf32_arm_relocs_copied * next; |
917583ad NC |
2100 | /* A section in dynobj. */ |
2101 | asection * section; | |
2102 | /* Number of relocs copied in this section. */ | |
2103 | bfd_size_type count; | |
ba93b8ac DJ |
2104 | /* Number of PC-relative relocs copied in this section. */ |
2105 | bfd_size_type pc_count; | |
917583ad | 2106 | }; |
252b5132 | 2107 | |
ba93b8ac DJ |
2108 | #define elf32_arm_hash_entry(ent) ((struct elf32_arm_link_hash_entry *)(ent)) |
2109 | ||
ba96a88f | 2110 | /* Arm ELF linker hash entry. */ |
252b5132 | 2111 | struct elf32_arm_link_hash_entry |
917583ad NC |
2112 | { |
2113 | struct elf_link_hash_entry root; | |
252b5132 | 2114 | |
917583ad | 2115 | /* Number of PC relative relocs copied for this symbol. */ |
5e681ec4 | 2116 | struct elf32_arm_relocs_copied * relocs_copied; |
b7693d02 DJ |
2117 | |
2118 | /* We reference count Thumb references to a PLT entry separately, | |
2119 | so that we can emit the Thumb trampoline only if needed. */ | |
2120 | bfd_signed_vma plt_thumb_refcount; | |
2121 | ||
2122 | /* Since PLT entries have variable size if the Thumb prologue is | |
2123 | used, we need to record the index into .got.plt instead of | |
2124 | recomputing it from the PLT offset. */ | |
2125 | bfd_signed_vma plt_got_offset; | |
ba93b8ac DJ |
2126 | |
2127 | #define GOT_UNKNOWN 0 | |
2128 | #define GOT_NORMAL 1 | |
2129 | #define GOT_TLS_GD 2 | |
2130 | #define GOT_TLS_IE 4 | |
2131 | unsigned char tls_type; | |
a4fd1a8e PB |
2132 | |
2133 | /* The symbol marking the real symbol location for exported thumb | |
2134 | symbols with Arm stubs. */ | |
2135 | struct elf_link_hash_entry *export_glue; | |
917583ad | 2136 | }; |
252b5132 | 2137 | |
252b5132 | 2138 | /* Traverse an arm ELF linker hash table. */ |
252b5132 RH |
2139 | #define elf32_arm_link_hash_traverse(table, func, info) \ |
2140 | (elf_link_hash_traverse \ | |
2141 | (&(table)->root, \ | |
b7693d02 | 2142 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
2143 | (info))) |
2144 | ||
2145 | /* Get the ARM elf linker hash table from a link_info structure. */ | |
2146 | #define elf32_arm_hash_table(info) \ | |
2147 | ((struct elf32_arm_link_hash_table *) ((info)->hash)) | |
2148 | ||
9b485d32 | 2149 | /* ARM ELF linker hash table. */ |
252b5132 | 2150 | struct elf32_arm_link_hash_table |
917583ad NC |
2151 | { |
2152 | /* The main hash table. */ | |
2153 | struct elf_link_hash_table root; | |
252b5132 | 2154 | |
4cc11e76 | 2155 | /* The size in bytes of the section containing the Thumb-to-ARM glue. */ |
dc810e39 | 2156 | bfd_size_type thumb_glue_size; |
252b5132 | 2157 | |
4cc11e76 | 2158 | /* The size in bytes of the section containing the ARM-to-Thumb glue. */ |
dc810e39 | 2159 | bfd_size_type arm_glue_size; |
252b5132 | 2160 | |
c7b8f16e JB |
2161 | /* The size in bytes of the section containing glue for VFP11 erratum |
2162 | veneers. */ | |
2163 | bfd_size_type vfp11_erratum_glue_size; | |
2164 | ||
4cc11e76 | 2165 | /* An arbitrary input BFD chosen to hold the glue sections. */ |
917583ad | 2166 | bfd * bfd_of_glue_owner; |
ba96a88f | 2167 | |
e489d0ae PB |
2168 | /* Nonzero to output a BE8 image. */ |
2169 | int byteswap_code; | |
2170 | ||
9c504268 | 2171 | /* Zero if R_ARM_TARGET1 means R_ARM_ABS32. |
87bc043a | 2172 | Nonzero if R_ARM_TARGET1 means R_ARM_REL32. */ |
9c504268 PB |
2173 | int target1_is_rel; |
2174 | ||
eb043451 PB |
2175 | /* The relocation to use for R_ARM_TARGET2 relocations. */ |
2176 | int target2_reloc; | |
2177 | ||
319850b4 JB |
2178 | /* Nonzero to fix BX instructions for ARMv4 targets. */ |
2179 | int fix_v4bx; | |
2180 | ||
33bfe774 JB |
2181 | /* Nonzero if the ARM/Thumb BLX instructions are available for use. */ |
2182 | int use_blx; | |
2183 | ||
c7b8f16e JB |
2184 | /* What sort of code sequences we should look for which may trigger the |
2185 | VFP11 denorm erratum. */ | |
2186 | bfd_arm_vfp11_fix vfp11_fix; | |
2187 | ||
2188 | /* Global counter for the number of fixes we have emitted. */ | |
2189 | int num_vfp11_fixes; | |
2190 | ||
e5a52504 MM |
2191 | /* The number of bytes in the initial entry in the PLT. */ |
2192 | bfd_size_type plt_header_size; | |
2193 | ||
2194 | /* The number of bytes in the subsequent PLT etries. */ | |
2195 | bfd_size_type plt_entry_size; | |
2196 | ||
00a97672 RS |
2197 | /* True if the target system is VxWorks. */ |
2198 | int vxworks_p; | |
2199 | ||
e5a52504 MM |
2200 | /* True if the target system is Symbian OS. */ |
2201 | int symbian_p; | |
2202 | ||
4e7fd91e PB |
2203 | /* True if the target uses REL relocations. */ |
2204 | int use_rel; | |
2205 | ||
5e681ec4 PB |
2206 | /* Short-cuts to get to dynamic linker sections. */ |
2207 | asection *sgot; | |
2208 | asection *sgotplt; | |
2209 | asection *srelgot; | |
2210 | asection *splt; | |
2211 | asection *srelplt; | |
2212 | asection *sdynbss; | |
2213 | asection *srelbss; | |
2214 | ||
00a97672 RS |
2215 | /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */ |
2216 | asection *srelplt2; | |
2217 | ||
ba93b8ac DJ |
2218 | /* Data for R_ARM_TLS_LDM32 relocations. */ |
2219 | union { | |
2220 | bfd_signed_vma refcount; | |
2221 | bfd_vma offset; | |
2222 | } tls_ldm_got; | |
2223 | ||
5e681ec4 PB |
2224 | /* Small local sym to section mapping cache. */ |
2225 | struct sym_sec_cache sym_sec; | |
b7693d02 DJ |
2226 | |
2227 | /* For convenience in allocate_dynrelocs. */ | |
2228 | bfd * obfd; | |
917583ad | 2229 | }; |
252b5132 | 2230 | |
780a67af NC |
2231 | /* Create an entry in an ARM ELF linker hash table. */ |
2232 | ||
2233 | static struct bfd_hash_entry * | |
57e8b36a NC |
2234 | elf32_arm_link_hash_newfunc (struct bfd_hash_entry * entry, |
2235 | struct bfd_hash_table * table, | |
2236 | const char * string) | |
780a67af NC |
2237 | { |
2238 | struct elf32_arm_link_hash_entry * ret = | |
2239 | (struct elf32_arm_link_hash_entry *) entry; | |
2240 | ||
2241 | /* Allocate the structure if it has not already been allocated by a | |
2242 | subclass. */ | |
2243 | if (ret == (struct elf32_arm_link_hash_entry *) NULL) | |
57e8b36a NC |
2244 | ret = bfd_hash_allocate (table, sizeof (struct elf32_arm_link_hash_entry)); |
2245 | if (ret == NULL) | |
780a67af NC |
2246 | return (struct bfd_hash_entry *) ret; |
2247 | ||
2248 | /* Call the allocation method of the superclass. */ | |
2249 | ret = ((struct elf32_arm_link_hash_entry *) | |
2250 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
2251 | table, string)); | |
57e8b36a | 2252 | if (ret != NULL) |
b7693d02 DJ |
2253 | { |
2254 | ret->relocs_copied = NULL; | |
ba93b8ac | 2255 | ret->tls_type = GOT_UNKNOWN; |
b7693d02 DJ |
2256 | ret->plt_thumb_refcount = 0; |
2257 | ret->plt_got_offset = -1; | |
a4fd1a8e | 2258 | ret->export_glue = NULL; |
b7693d02 | 2259 | } |
780a67af NC |
2260 | |
2261 | return (struct bfd_hash_entry *) ret; | |
2262 | } | |
2263 | ||
00a97672 RS |
2264 | /* Return true if NAME is the name of the relocation section associated |
2265 | with S. */ | |
2266 | ||
2267 | static bfd_boolean | |
2268 | reloc_section_p (struct elf32_arm_link_hash_table *htab, | |
2269 | const char *name, asection *s) | |
2270 | { | |
2271 | if (htab->use_rel) | |
0112cd26 | 2272 | return CONST_STRNEQ (name, ".rel") && strcmp (s->name, name + 4) == 0; |
00a97672 | 2273 | else |
0112cd26 | 2274 | return CONST_STRNEQ (name, ".rela") && strcmp (s->name, name + 5) == 0; |
00a97672 RS |
2275 | } |
2276 | ||
2277 | /* Create .got, .gotplt, and .rel(a).got sections in DYNOBJ, and set up | |
5e681ec4 PB |
2278 | shortcuts to them in our hash table. */ |
2279 | ||
2280 | static bfd_boolean | |
57e8b36a | 2281 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
5e681ec4 PB |
2282 | { |
2283 | struct elf32_arm_link_hash_table *htab; | |
2284 | ||
e5a52504 MM |
2285 | htab = elf32_arm_hash_table (info); |
2286 | /* BPABI objects never have a GOT, or associated sections. */ | |
2287 | if (htab->symbian_p) | |
2288 | return TRUE; | |
2289 | ||
5e681ec4 PB |
2290 | if (! _bfd_elf_create_got_section (dynobj, info)) |
2291 | return FALSE; | |
2292 | ||
5e681ec4 PB |
2293 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); |
2294 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
2295 | if (!htab->sgot || !htab->sgotplt) | |
2296 | abort (); | |
2297 | ||
00a97672 RS |
2298 | htab->srelgot = bfd_make_section_with_flags (dynobj, |
2299 | RELOC_SECTION (htab, ".got"), | |
3496cb2a L |
2300 | (SEC_ALLOC | SEC_LOAD |
2301 | | SEC_HAS_CONTENTS | |
2302 | | SEC_IN_MEMORY | |
2303 | | SEC_LINKER_CREATED | |
2304 | | SEC_READONLY)); | |
5e681ec4 | 2305 | if (htab->srelgot == NULL |
5e681ec4 PB |
2306 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) |
2307 | return FALSE; | |
2308 | return TRUE; | |
2309 | } | |
2310 | ||
00a97672 RS |
2311 | /* Create .plt, .rel(a).plt, .got, .got.plt, .rel(a).got, .dynbss, and |
2312 | .rel(a).bss sections in DYNOBJ, and set up shortcuts to them in our | |
5e681ec4 PB |
2313 | hash table. */ |
2314 | ||
2315 | static bfd_boolean | |
57e8b36a | 2316 | elf32_arm_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
5e681ec4 PB |
2317 | { |
2318 | struct elf32_arm_link_hash_table *htab; | |
2319 | ||
2320 | htab = elf32_arm_hash_table (info); | |
2321 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
2322 | return FALSE; | |
2323 | ||
2324 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
2325 | return FALSE; | |
2326 | ||
2327 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
00a97672 RS |
2328 | htab->srelplt = bfd_get_section_by_name (dynobj, |
2329 | RELOC_SECTION (htab, ".plt")); | |
5e681ec4 PB |
2330 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); |
2331 | if (!info->shared) | |
00a97672 RS |
2332 | htab->srelbss = bfd_get_section_by_name (dynobj, |
2333 | RELOC_SECTION (htab, ".bss")); | |
2334 | ||
2335 | if (htab->vxworks_p) | |
2336 | { | |
2337 | if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2)) | |
2338 | return FALSE; | |
2339 | ||
2340 | if (info->shared) | |
2341 | { | |
2342 | htab->plt_header_size = 0; | |
2343 | htab->plt_entry_size | |
2344 | = 4 * ARRAY_SIZE (elf32_arm_vxworks_shared_plt_entry); | |
2345 | } | |
2346 | else | |
2347 | { | |
2348 | htab->plt_header_size | |
2349 | = 4 * ARRAY_SIZE (elf32_arm_vxworks_exec_plt0_entry); | |
2350 | htab->plt_entry_size | |
2351 | = 4 * ARRAY_SIZE (elf32_arm_vxworks_exec_plt_entry); | |
2352 | } | |
2353 | } | |
5e681ec4 | 2354 | |
e5a52504 MM |
2355 | if (!htab->splt |
2356 | || !htab->srelplt | |
2357 | || !htab->sdynbss | |
5e681ec4 PB |
2358 | || (!info->shared && !htab->srelbss)) |
2359 | abort (); | |
2360 | ||
2361 | return TRUE; | |
2362 | } | |
2363 | ||
2364 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
2365 | ||
2366 | static void | |
fcfa13d2 | 2367 | elf32_arm_copy_indirect_symbol (struct bfd_link_info *info, |
5e681ec4 PB |
2368 | struct elf_link_hash_entry *dir, |
2369 | struct elf_link_hash_entry *ind) | |
2370 | { | |
2371 | struct elf32_arm_link_hash_entry *edir, *eind; | |
2372 | ||
2373 | edir = (struct elf32_arm_link_hash_entry *) dir; | |
2374 | eind = (struct elf32_arm_link_hash_entry *) ind; | |
2375 | ||
2376 | if (eind->relocs_copied != NULL) | |
2377 | { | |
2378 | if (edir->relocs_copied != NULL) | |
2379 | { | |
2380 | struct elf32_arm_relocs_copied **pp; | |
2381 | struct elf32_arm_relocs_copied *p; | |
2382 | ||
fcfa13d2 | 2383 | /* Add reloc counts against the indirect sym to the direct sym |
5e681ec4 PB |
2384 | list. Merge any entries against the same section. */ |
2385 | for (pp = &eind->relocs_copied; (p = *pp) != NULL; ) | |
2386 | { | |
2387 | struct elf32_arm_relocs_copied *q; | |
2388 | ||
2389 | for (q = edir->relocs_copied; q != NULL; q = q->next) | |
2390 | if (q->section == p->section) | |
2391 | { | |
ba93b8ac | 2392 | q->pc_count += p->pc_count; |
5e681ec4 PB |
2393 | q->count += p->count; |
2394 | *pp = p->next; | |
2395 | break; | |
2396 | } | |
2397 | if (q == NULL) | |
2398 | pp = &p->next; | |
2399 | } | |
2400 | *pp = edir->relocs_copied; | |
2401 | } | |
2402 | ||
2403 | edir->relocs_copied = eind->relocs_copied; | |
2404 | eind->relocs_copied = NULL; | |
2405 | } | |
2406 | ||
b34b2d70 | 2407 | if (ind->root.type == bfd_link_hash_indirect) |
ba93b8ac | 2408 | { |
b34b2d70 DJ |
2409 | /* Copy over PLT info. */ |
2410 | edir->plt_thumb_refcount += eind->plt_thumb_refcount; | |
2411 | eind->plt_thumb_refcount = 0; | |
2412 | ||
2413 | if (dir->got.refcount <= 0) | |
2414 | { | |
2415 | edir->tls_type = eind->tls_type; | |
2416 | eind->tls_type = GOT_UNKNOWN; | |
2417 | } | |
ba93b8ac DJ |
2418 | } |
2419 | ||
fcfa13d2 | 2420 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
5e681ec4 PB |
2421 | } |
2422 | ||
9b485d32 | 2423 | /* Create an ARM elf linker hash table. */ |
252b5132 RH |
2424 | |
2425 | static struct bfd_link_hash_table * | |
57e8b36a | 2426 | elf32_arm_link_hash_table_create (bfd *abfd) |
252b5132 RH |
2427 | { |
2428 | struct elf32_arm_link_hash_table *ret; | |
dc810e39 | 2429 | bfd_size_type amt = sizeof (struct elf32_arm_link_hash_table); |
252b5132 | 2430 | |
57e8b36a NC |
2431 | ret = bfd_malloc (amt); |
2432 | if (ret == NULL) | |
252b5132 RH |
2433 | return NULL; |
2434 | ||
57e8b36a | 2435 | if (!_bfd_elf_link_hash_table_init (& ret->root, abfd, |
66eb6687 AM |
2436 | elf32_arm_link_hash_newfunc, |
2437 | sizeof (struct elf32_arm_link_hash_entry))) | |
252b5132 | 2438 | { |
e2d34d7d | 2439 | free (ret); |
252b5132 RH |
2440 | return NULL; |
2441 | } | |
2442 | ||
5e681ec4 PB |
2443 | ret->sgot = NULL; |
2444 | ret->sgotplt = NULL; | |
2445 | ret->srelgot = NULL; | |
2446 | ret->splt = NULL; | |
2447 | ret->srelplt = NULL; | |
2448 | ret->sdynbss = NULL; | |
2449 | ret->srelbss = NULL; | |
00a97672 | 2450 | ret->srelplt2 = NULL; |
252b5132 RH |
2451 | ret->thumb_glue_size = 0; |
2452 | ret->arm_glue_size = 0; | |
c7b8f16e JB |
2453 | ret->vfp11_fix = BFD_ARM_VFP11_FIX_NONE; |
2454 | ret->vfp11_erratum_glue_size = 0; | |
2455 | ret->num_vfp11_fixes = 0; | |
252b5132 | 2456 | ret->bfd_of_glue_owner = NULL; |
e489d0ae | 2457 | ret->byteswap_code = 0; |
9c504268 | 2458 | ret->target1_is_rel = 0; |
eb043451 | 2459 | ret->target2_reloc = R_ARM_NONE; |
e5a52504 MM |
2460 | #ifdef FOUR_WORD_PLT |
2461 | ret->plt_header_size = 16; | |
2462 | ret->plt_entry_size = 16; | |
2463 | #else | |
2464 | ret->plt_header_size = 20; | |
2465 | ret->plt_entry_size = 12; | |
2466 | #endif | |
33bfe774 JB |
2467 | ret->fix_v4bx = 0; |
2468 | ret->use_blx = 0; | |
00a97672 | 2469 | ret->vxworks_p = 0; |
e5a52504 | 2470 | ret->symbian_p = 0; |
4e7fd91e | 2471 | ret->use_rel = 1; |
5e681ec4 | 2472 | ret->sym_sec.abfd = NULL; |
b7693d02 | 2473 | ret->obfd = abfd; |
ba93b8ac | 2474 | ret->tls_ldm_got.refcount = 0; |
252b5132 RH |
2475 | |
2476 | return &ret->root.root; | |
2477 | } | |
2478 | ||
9b485d32 NC |
2479 | /* Locate the Thumb encoded calling stub for NAME. */ |
2480 | ||
252b5132 | 2481 | static struct elf_link_hash_entry * |
57e8b36a NC |
2482 | find_thumb_glue (struct bfd_link_info *link_info, |
2483 | const char *name, | |
f2a9dd69 | 2484 | char **error_message) |
252b5132 RH |
2485 | { |
2486 | char *tmp_name; | |
2487 | struct elf_link_hash_entry *hash; | |
2488 | struct elf32_arm_link_hash_table *hash_table; | |
2489 | ||
2490 | /* We need a pointer to the armelf specific hash table. */ | |
2491 | hash_table = elf32_arm_hash_table (link_info); | |
2492 | ||
57e8b36a NC |
2493 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
2494 | + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
2495 | |
2496 | BFD_ASSERT (tmp_name); | |
2497 | ||
2498 | sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name); | |
2499 | ||
2500 | hash = elf_link_hash_lookup | |
b34976b6 | 2501 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
2502 | |
2503 | if (hash == NULL) | |
f2a9dd69 DJ |
2504 | asprintf (error_message, _("unable to find THUMB glue '%s' for '%s'"), |
2505 | tmp_name, name); | |
252b5132 RH |
2506 | |
2507 | free (tmp_name); | |
2508 | ||
2509 | return hash; | |
2510 | } | |
2511 | ||
9b485d32 NC |
2512 | /* Locate the ARM encoded calling stub for NAME. */ |
2513 | ||
252b5132 | 2514 | static struct elf_link_hash_entry * |
57e8b36a NC |
2515 | find_arm_glue (struct bfd_link_info *link_info, |
2516 | const char *name, | |
f2a9dd69 | 2517 | char **error_message) |
252b5132 RH |
2518 | { |
2519 | char *tmp_name; | |
2520 | struct elf_link_hash_entry *myh; | |
2521 | struct elf32_arm_link_hash_table *hash_table; | |
2522 | ||
2523 | /* We need a pointer to the elfarm specific hash table. */ | |
2524 | hash_table = elf32_arm_hash_table (link_info); | |
2525 | ||
57e8b36a NC |
2526 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
2527 | + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
2528 | |
2529 | BFD_ASSERT (tmp_name); | |
2530 | ||
2531 | sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name); | |
2532 | ||
2533 | myh = elf_link_hash_lookup | |
b34976b6 | 2534 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
2535 | |
2536 | if (myh == NULL) | |
f2a9dd69 DJ |
2537 | asprintf (error_message, _("unable to find ARM glue '%s' for '%s'"), |
2538 | tmp_name, name); | |
252b5132 RH |
2539 | |
2540 | free (tmp_name); | |
2541 | ||
2542 | return myh; | |
2543 | } | |
2544 | ||
8f6277f5 | 2545 | /* ARM->Thumb glue (static images): |
252b5132 RH |
2546 | |
2547 | .arm | |
2548 | __func_from_arm: | |
2549 | ldr r12, __func_addr | |
2550 | bx r12 | |
2551 | __func_addr: | |
8f6277f5 | 2552 | .word func @ behave as if you saw a ARM_32 reloc. |
252b5132 | 2553 | |
8f6277f5 PB |
2554 | (relocatable images) |
2555 | .arm | |
2556 | __func_from_arm: | |
2557 | ldr r12, __func_offset | |
2558 | add r12, r12, pc | |
2559 | bx r12 | |
2560 | __func_offset: | |
2561 | .word func - . | |
2562 | */ | |
2563 | ||
2564 | #define ARM2THUMB_STATIC_GLUE_SIZE 12 | |
252b5132 RH |
2565 | static const insn32 a2t1_ldr_insn = 0xe59fc000; |
2566 | static const insn32 a2t2_bx_r12_insn = 0xe12fff1c; | |
2567 | static const insn32 a2t3_func_addr_insn = 0x00000001; | |
2568 | ||
8f6277f5 PB |
2569 | #define ARM2THUMB_PIC_GLUE_SIZE 16 |
2570 | static const insn32 a2t1p_ldr_insn = 0xe59fc004; | |
2571 | static const insn32 a2t2p_add_pc_insn = 0xe08cc00f; | |
2572 | static const insn32 a2t3p_bx_r12_insn = 0xe12fff1c; | |
2573 | ||
9b485d32 | 2574 | /* Thumb->ARM: Thumb->(non-interworking aware) ARM |
252b5132 RH |
2575 | |
2576 | .thumb .thumb | |
2577 | .align 2 .align 2 | |
2578 | __func_from_thumb: __func_from_thumb: | |
2579 | bx pc push {r6, lr} | |
2580 | nop ldr r6, __func_addr | |
2581 | .arm mov lr, pc | |
2582 | __func_change_to_arm: bx r6 | |
2583 | b func .arm | |
2584 | __func_back_to_thumb: | |
2585 | ldmia r13! {r6, lr} | |
2586 | bx lr | |
2587 | __func_addr: | |
9b485d32 | 2588 | .word func */ |
252b5132 RH |
2589 | |
2590 | #define THUMB2ARM_GLUE_SIZE 8 | |
2591 | static const insn16 t2a1_bx_pc_insn = 0x4778; | |
2592 | static const insn16 t2a2_noop_insn = 0x46c0; | |
2593 | static const insn32 t2a3_b_insn = 0xea000000; | |
2594 | ||
c7b8f16e JB |
2595 | #define VFP11_ERRATUM_VENEER_SIZE 8 |
2596 | ||
7e392df6 | 2597 | #ifndef ELFARM_NABI_C_INCLUDED |
b34976b6 | 2598 | bfd_boolean |
57e8b36a | 2599 | bfd_elf32_arm_allocate_interworking_sections (struct bfd_link_info * info) |
252b5132 RH |
2600 | { |
2601 | asection * s; | |
2602 | bfd_byte * foo; | |
2603 | struct elf32_arm_link_hash_table * globals; | |
2604 | ||
2605 | globals = elf32_arm_hash_table (info); | |
2606 | ||
2607 | BFD_ASSERT (globals != NULL); | |
2608 | ||
2609 | if (globals->arm_glue_size != 0) | |
2610 | { | |
2611 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2612 | ||
dc810e39 AM |
2613 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, |
2614 | ARM2THUMB_GLUE_SECTION_NAME); | |
252b5132 RH |
2615 | |
2616 | BFD_ASSERT (s != NULL); | |
2617 | ||
57e8b36a | 2618 | foo = bfd_alloc (globals->bfd_of_glue_owner, globals->arm_glue_size); |
252b5132 | 2619 | |
2f475487 | 2620 | BFD_ASSERT (s->size == globals->arm_glue_size); |
252b5132 RH |
2621 | s->contents = foo; |
2622 | } | |
2623 | ||
2624 | if (globals->thumb_glue_size != 0) | |
2625 | { | |
2626 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2627 | ||
2628 | s = bfd_get_section_by_name | |
2629 | (globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME); | |
2630 | ||
2631 | BFD_ASSERT (s != NULL); | |
2632 | ||
57e8b36a | 2633 | foo = bfd_alloc (globals->bfd_of_glue_owner, globals->thumb_glue_size); |
252b5132 | 2634 | |
2f475487 | 2635 | BFD_ASSERT (s->size == globals->thumb_glue_size); |
252b5132 RH |
2636 | s->contents = foo; |
2637 | } | |
c7b8f16e JB |
2638 | |
2639 | if (globals->vfp11_erratum_glue_size != 0) | |
2640 | { | |
2641 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2642 | ||
2643 | s = bfd_get_section_by_name | |
2644 | (globals->bfd_of_glue_owner, VFP11_ERRATUM_VENEER_SECTION_NAME); | |
2645 | ||
2646 | BFD_ASSERT (s != NULL); | |
2647 | ||
2648 | foo = bfd_alloc (globals->bfd_of_glue_owner, | |
2649 | globals->vfp11_erratum_glue_size); | |
2650 | ||
2651 | BFD_ASSERT (s->size == globals->vfp11_erratum_glue_size); | |
2652 | s->contents = foo; | |
2653 | } | |
252b5132 | 2654 | |
b34976b6 | 2655 | return TRUE; |
252b5132 RH |
2656 | } |
2657 | ||
a4fd1a8e PB |
2658 | /* Allocate space and symbols for calling a Thumb function from Arm mode. |
2659 | returns the symbol identifying teh stub. */ | |
2660 | static struct elf_link_hash_entry * | |
57e8b36a NC |
2661 | record_arm_to_thumb_glue (struct bfd_link_info * link_info, |
2662 | struct elf_link_hash_entry * h) | |
252b5132 RH |
2663 | { |
2664 | const char * name = h->root.root.string; | |
63b0f745 | 2665 | asection * s; |
252b5132 RH |
2666 | char * tmp_name; |
2667 | struct elf_link_hash_entry * myh; | |
14a793b2 | 2668 | struct bfd_link_hash_entry * bh; |
252b5132 | 2669 | struct elf32_arm_link_hash_table * globals; |
dc810e39 | 2670 | bfd_vma val; |
2f475487 | 2671 | bfd_size_type size; |
252b5132 RH |
2672 | |
2673 | globals = elf32_arm_hash_table (link_info); | |
2674 | ||
2675 | BFD_ASSERT (globals != NULL); | |
2676 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
2677 | ||
2678 | s = bfd_get_section_by_name | |
2679 | (globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME); | |
2680 | ||
252b5132 RH |
2681 | BFD_ASSERT (s != NULL); |
2682 | ||
57e8b36a | 2683 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1); |
252b5132 RH |
2684 | |
2685 | BFD_ASSERT (tmp_name); | |
2686 | ||
2687 | sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name); | |
2688 | ||
2689 | myh = elf_link_hash_lookup | |
b34976b6 | 2690 | (&(globals)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
2691 | |
2692 | if (myh != NULL) | |
2693 | { | |
9b485d32 | 2694 | /* We've already seen this guy. */ |
252b5132 | 2695 | free (tmp_name); |
a4fd1a8e | 2696 | return myh; |
252b5132 RH |
2697 | } |
2698 | ||
57e8b36a NC |
2699 | /* The only trick here is using hash_table->arm_glue_size as the value. |
2700 | Even though the section isn't allocated yet, this is where we will be | |
2701 | putting it. */ | |
14a793b2 | 2702 | bh = NULL; |
dc810e39 AM |
2703 | val = globals->arm_glue_size + 1; |
2704 | _bfd_generic_link_add_one_symbol (link_info, globals->bfd_of_glue_owner, | |
2705 | tmp_name, BSF_GLOBAL, s, val, | |
b34976b6 | 2706 | NULL, TRUE, FALSE, &bh); |
252b5132 | 2707 | |
b7693d02 DJ |
2708 | myh = (struct elf_link_hash_entry *) bh; |
2709 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_FUNC); | |
2710 | myh->forced_local = 1; | |
2711 | ||
252b5132 RH |
2712 | free (tmp_name); |
2713 | ||
8f6277f5 | 2714 | if ((link_info->shared || globals->root.is_relocatable_executable)) |
2f475487 | 2715 | size = ARM2THUMB_PIC_GLUE_SIZE; |
8f6277f5 | 2716 | else |
2f475487 AM |
2717 | size = ARM2THUMB_STATIC_GLUE_SIZE; |
2718 | ||
2719 | s->size += size; | |
2720 | globals->arm_glue_size += size; | |
252b5132 | 2721 | |
a4fd1a8e | 2722 | return myh; |
252b5132 RH |
2723 | } |
2724 | ||
2725 | static void | |
57e8b36a NC |
2726 | record_thumb_to_arm_glue (struct bfd_link_info *link_info, |
2727 | struct elf_link_hash_entry *h) | |
252b5132 RH |
2728 | { |
2729 | const char *name = h->root.root.string; | |
63b0f745 | 2730 | asection *s; |
252b5132 RH |
2731 | char *tmp_name; |
2732 | struct elf_link_hash_entry *myh; | |
14a793b2 | 2733 | struct bfd_link_hash_entry *bh; |
252b5132 | 2734 | struct elf32_arm_link_hash_table *hash_table; |
dc810e39 | 2735 | bfd_vma val; |
252b5132 RH |
2736 | |
2737 | hash_table = elf32_arm_hash_table (link_info); | |
2738 | ||
2739 | BFD_ASSERT (hash_table != NULL); | |
2740 | BFD_ASSERT (hash_table->bfd_of_glue_owner != NULL); | |
2741 | ||
2742 | s = bfd_get_section_by_name | |
2743 | (hash_table->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME); | |
2744 | ||
2745 | BFD_ASSERT (s != NULL); | |
2746 | ||
57e8b36a NC |
2747 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
2748 | + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1); | |
252b5132 RH |
2749 | |
2750 | BFD_ASSERT (tmp_name); | |
2751 | ||
2752 | sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name); | |
2753 | ||
2754 | myh = elf_link_hash_lookup | |
b34976b6 | 2755 | (&(hash_table)->root, tmp_name, FALSE, FALSE, TRUE); |
252b5132 RH |
2756 | |
2757 | if (myh != NULL) | |
2758 | { | |
9b485d32 | 2759 | /* We've already seen this guy. */ |
252b5132 | 2760 | free (tmp_name); |
9b485d32 | 2761 | return; |
252b5132 RH |
2762 | } |
2763 | ||
14a793b2 | 2764 | bh = NULL; |
dc810e39 AM |
2765 | val = hash_table->thumb_glue_size + 1; |
2766 | _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner, | |
2767 | tmp_name, BSF_GLOBAL, s, val, | |
b34976b6 | 2768 | NULL, TRUE, FALSE, &bh); |
252b5132 | 2769 | |
9b485d32 | 2770 | /* If we mark it 'Thumb', the disassembler will do a better job. */ |
14a793b2 | 2771 | myh = (struct elf_link_hash_entry *) bh; |
b7693d02 DJ |
2772 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_ARM_TFUNC); |
2773 | myh->forced_local = 1; | |
252b5132 RH |
2774 | |
2775 | free (tmp_name); | |
2776 | ||
252b5132 RH |
2777 | #define CHANGE_TO_ARM "__%s_change_to_arm" |
2778 | #define BACK_FROM_ARM "__%s_back_from_arm" | |
2779 | ||
9b485d32 | 2780 | /* Allocate another symbol to mark where we switch to Arm mode. */ |
57e8b36a NC |
2781 | tmp_name = bfd_malloc ((bfd_size_type) strlen (name) |
2782 | + strlen (CHANGE_TO_ARM) + 1); | |
252b5132 RH |
2783 | |
2784 | BFD_ASSERT (tmp_name); | |
2785 | ||
2786 | sprintf (tmp_name, CHANGE_TO_ARM, name); | |
2787 | ||
14a793b2 | 2788 | bh = NULL; |
dc810e39 AM |
2789 | val = hash_table->thumb_glue_size + 4, |
2790 | _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner, | |
2791 | tmp_name, BSF_LOCAL, s, val, | |
b34976b6 | 2792 | NULL, TRUE, FALSE, &bh); |
252b5132 RH |
2793 | |
2794 | free (tmp_name); | |
2795 | ||
2f475487 | 2796 | s->size += THUMB2ARM_GLUE_SIZE; |
252b5132 RH |
2797 | hash_table->thumb_glue_size += THUMB2ARM_GLUE_SIZE; |
2798 | ||
2799 | return; | |
2800 | } | |
2801 | ||
c7b8f16e JB |
2802 | |
2803 | /* Add an entry to the code/data map for section SEC. */ | |
2804 | ||
2805 | static void | |
2806 | elf32_arm_section_map_add (asection *sec, char type, bfd_vma vma) | |
2807 | { | |
2808 | struct _arm_elf_section_data *sec_data = elf32_arm_section_data (sec); | |
2809 | unsigned int newidx; | |
2810 | ||
2811 | if (sec_data->map == NULL) | |
2812 | { | |
2813 | sec_data->map = bfd_malloc (sizeof (elf32_arm_section_map)); | |
2814 | sec_data->mapcount = 0; | |
2815 | sec_data->mapsize = 1; | |
2816 | } | |
2817 | ||
2818 | newidx = sec_data->mapcount++; | |
2819 | ||
2820 | if (sec_data->mapcount > sec_data->mapsize) | |
2821 | { | |
2822 | sec_data->mapsize *= 2; | |
2823 | sec_data->map = bfd_realloc (sec_data->map, sec_data->mapsize | |
2824 | * sizeof (elf32_arm_section_map)); | |
2825 | } | |
2826 | ||
2827 | sec_data->map[newidx].vma = vma; | |
2828 | sec_data->map[newidx].type = type; | |
2829 | } | |
2830 | ||
2831 | ||
2832 | /* Record information about a VFP11 denorm-erratum veneer. Only ARM-mode | |
2833 | veneers are handled for now. */ | |
2834 | ||
2835 | static bfd_vma | |
2836 | record_vfp11_erratum_veneer (struct bfd_link_info *link_info, | |
2837 | elf32_vfp11_erratum_list *branch, | |
2838 | bfd *branch_bfd, | |
2839 | asection *branch_sec, | |
2840 | unsigned int offset) | |
2841 | { | |
2842 | asection *s; | |
2843 | struct elf32_arm_link_hash_table *hash_table; | |
2844 | char *tmp_name; | |
2845 | struct elf_link_hash_entry *myh; | |
2846 | struct bfd_link_hash_entry *bh; | |
2847 | bfd_vma val; | |
2848 | struct _arm_elf_section_data *sec_data; | |
2849 | int errcount; | |
2850 | elf32_vfp11_erratum_list *newerr; | |
2851 | ||
2852 | hash_table = elf32_arm_hash_table (link_info); | |
2853 | ||
2854 | BFD_ASSERT (hash_table != NULL); | |
2855 | BFD_ASSERT (hash_table->bfd_of_glue_owner != NULL); | |
2856 | ||
2857 | s = bfd_get_section_by_name | |
2858 | (hash_table->bfd_of_glue_owner, VFP11_ERRATUM_VENEER_SECTION_NAME); | |
2859 | ||
2860 | sec_data = elf32_arm_section_data (s); | |
2861 | ||
2862 | BFD_ASSERT (s != NULL); | |
2863 | ||
2864 | tmp_name = bfd_malloc ((bfd_size_type) strlen | |
2865 | (VFP11_ERRATUM_VENEER_ENTRY_NAME) + 10); | |
2866 | ||
2867 | BFD_ASSERT (tmp_name); | |
2868 | ||
2869 | sprintf (tmp_name, VFP11_ERRATUM_VENEER_ENTRY_NAME, | |
2870 | hash_table->num_vfp11_fixes); | |
2871 | ||
2872 | myh = elf_link_hash_lookup | |
2873 | (&(hash_table)->root, tmp_name, FALSE, FALSE, FALSE); | |
2874 | ||
2875 | BFD_ASSERT (myh == NULL); | |
2876 | ||
2877 | bh = NULL; | |
2878 | val = hash_table->vfp11_erratum_glue_size; | |
2879 | _bfd_generic_link_add_one_symbol (link_info, hash_table->bfd_of_glue_owner, | |
2880 | tmp_name, BSF_FUNCTION | BSF_LOCAL, s, val, | |
2881 | NULL, TRUE, FALSE, &bh); | |
2882 | ||
2883 | myh = (struct elf_link_hash_entry *) bh; | |
2884 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_FUNC); | |
2885 | myh->forced_local = 1; | |
2886 | ||
2887 | /* Link veneer back to calling location. */ | |
2888 | errcount = ++(sec_data->erratumcount); | |
2889 | newerr = bfd_zmalloc (sizeof (elf32_vfp11_erratum_list)); | |
2890 | ||
2891 | newerr->type = VFP11_ERRATUM_ARM_VENEER; | |
2892 | newerr->vma = -1; | |
2893 | newerr->u.v.branch = branch; | |
2894 | newerr->u.v.id = hash_table->num_vfp11_fixes; | |
2895 | branch->u.b.veneer = newerr; | |
2896 | ||
2897 | newerr->next = sec_data->erratumlist; | |
2898 | sec_data->erratumlist = newerr; | |
2899 | ||
2900 | /* A symbol for the return from the veneer. */ | |
2901 | sprintf (tmp_name, VFP11_ERRATUM_VENEER_ENTRY_NAME "_r", | |
2902 | hash_table->num_vfp11_fixes); | |
2903 | ||
2904 | myh = elf_link_hash_lookup | |
2905 | (&(hash_table)->root, tmp_name, FALSE, FALSE, FALSE); | |
2906 | ||
2907 | if (myh != NULL) | |
2908 | abort (); | |
2909 | ||
2910 | bh = NULL; | |
2911 | val = offset + 4; | |
2912 | _bfd_generic_link_add_one_symbol (link_info, branch_bfd, tmp_name, BSF_LOCAL, | |
2913 | branch_sec, val, NULL, TRUE, FALSE, &bh); | |
2914 | ||
2915 | myh = (struct elf_link_hash_entry *) bh; | |
2916 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_FUNC); | |
2917 | myh->forced_local = 1; | |
2918 | ||
2919 | free (tmp_name); | |
2920 | ||
2921 | /* Generate a mapping symbol for the veneer section, and explicitly add an | |
2922 | entry for that symbol to the code/data map for the section. */ | |
2923 | if (hash_table->vfp11_erratum_glue_size == 0) | |
2924 | { | |
2925 | bh = NULL; | |
2926 | /* FIXME: Creates an ARM symbol. Thumb mode will need attention if it | |
2927 | ever requires this erratum fix. */ | |
2928 | _bfd_generic_link_add_one_symbol (link_info, | |
2929 | hash_table->bfd_of_glue_owner, "$a", | |
2930 | BSF_LOCAL, s, 0, NULL, | |
2931 | TRUE, FALSE, &bh); | |
2932 | ||
2933 | myh = (struct elf_link_hash_entry *) bh; | |
2934 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE); | |
2935 | myh->forced_local = 1; | |
2936 | ||
2937 | /* The elf32_arm_init_maps function only cares about symbols from input | |
2938 | BFDs. We must make a note of this generated mapping symbol | |
2939 | ourselves so that code byteswapping works properly in | |
2940 | elf32_arm_write_section. */ | |
2941 | elf32_arm_section_map_add (s, 'a', 0); | |
2942 | } | |
2943 | ||
2944 | s->size += VFP11_ERRATUM_VENEER_SIZE; | |
2945 | hash_table->vfp11_erratum_glue_size += VFP11_ERRATUM_VENEER_SIZE; | |
2946 | hash_table->num_vfp11_fixes++; | |
2947 | ||
2948 | /* The offset of the veneer. */ | |
2949 | return val; | |
2950 | } | |
2951 | ||
8afb0e02 NC |
2952 | /* Add the glue sections to ABFD. This function is called from the |
2953 | linker scripts in ld/emultempl/{armelf}.em. */ | |
9b485d32 | 2954 | |
b34976b6 | 2955 | bfd_boolean |
57e8b36a NC |
2956 | bfd_elf32_arm_add_glue_sections_to_bfd (bfd *abfd, |
2957 | struct bfd_link_info *info) | |
252b5132 | 2958 | { |
252b5132 RH |
2959 | flagword flags; |
2960 | asection *sec; | |
2961 | ||
8afb0e02 NC |
2962 | /* If we are only performing a partial |
2963 | link do not bother adding the glue. */ | |
1049f94e | 2964 | if (info->relocatable) |
b34976b6 | 2965 | return TRUE; |
252b5132 | 2966 | |
252b5132 RH |
2967 | sec = bfd_get_section_by_name (abfd, ARM2THUMB_GLUE_SECTION_NAME); |
2968 | ||
2969 | if (sec == NULL) | |
2970 | { | |
57db232e NC |
2971 | /* Note: we do not include the flag SEC_LINKER_CREATED, as this |
2972 | will prevent elf_link_input_bfd() from processing the contents | |
2973 | of this section. */ | |
2f475487 AM |
2974 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
2975 | | SEC_CODE | SEC_READONLY); | |
252b5132 | 2976 | |
3496cb2a L |
2977 | sec = bfd_make_section_with_flags (abfd, |
2978 | ARM2THUMB_GLUE_SECTION_NAME, | |
2979 | flags); | |
252b5132 RH |
2980 | |
2981 | if (sec == NULL | |
252b5132 | 2982 | || !bfd_set_section_alignment (abfd, sec, 2)) |
b34976b6 | 2983 | return FALSE; |
9a5aca8c | 2984 | |
57db232e NC |
2985 | /* Set the gc mark to prevent the section from being removed by garbage |
2986 | collection, despite the fact that no relocs refer to this section. */ | |
2987 | sec->gc_mark = 1; | |
252b5132 RH |
2988 | } |
2989 | ||
2990 | sec = bfd_get_section_by_name (abfd, THUMB2ARM_GLUE_SECTION_NAME); | |
2991 | ||
2992 | if (sec == NULL) | |
2993 | { | |
2f475487 AM |
2994 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
2995 | | SEC_CODE | SEC_READONLY); | |
252b5132 | 2996 | |
3496cb2a L |
2997 | sec = bfd_make_section_with_flags (abfd, |
2998 | THUMB2ARM_GLUE_SECTION_NAME, | |
2999 | flags); | |
252b5132 RH |
3000 | |
3001 | if (sec == NULL | |
252b5132 | 3002 | || !bfd_set_section_alignment (abfd, sec, 2)) |
b34976b6 | 3003 | return FALSE; |
9a5aca8c | 3004 | |
57db232e | 3005 | sec->gc_mark = 1; |
252b5132 RH |
3006 | } |
3007 | ||
c7b8f16e JB |
3008 | sec = bfd_get_section_by_name (abfd, VFP11_ERRATUM_VENEER_SECTION_NAME); |
3009 | ||
3010 | if (sec == NULL) | |
3011 | { | |
3012 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3013 | | SEC_CODE | SEC_READONLY); | |
3014 | ||
3015 | sec = bfd_make_section_with_flags (abfd, | |
3016 | VFP11_ERRATUM_VENEER_SECTION_NAME, | |
3017 | flags); | |
3018 | ||
3019 | if (sec == NULL | |
3020 | || !bfd_set_section_alignment (abfd, sec, 2)) | |
3021 | return FALSE; | |
3022 | ||
3023 | sec->gc_mark = 1; | |
3024 | } | |
3025 | ||
b34976b6 | 3026 | return TRUE; |
8afb0e02 NC |
3027 | } |
3028 | ||
3029 | /* Select a BFD to be used to hold the sections used by the glue code. | |
3030 | This function is called from the linker scripts in ld/emultempl/ | |
3031 | {armelf/pe}.em */ | |
3032 | ||
b34976b6 | 3033 | bfd_boolean |
57e8b36a | 3034 | bfd_elf32_arm_get_bfd_for_interworking (bfd *abfd, struct bfd_link_info *info) |
8afb0e02 NC |
3035 | { |
3036 | struct elf32_arm_link_hash_table *globals; | |
3037 | ||
3038 | /* If we are only performing a partial link | |
3039 | do not bother getting a bfd to hold the glue. */ | |
1049f94e | 3040 | if (info->relocatable) |
b34976b6 | 3041 | return TRUE; |
8afb0e02 | 3042 | |
b7693d02 DJ |
3043 | /* Make sure we don't attach the glue sections to a dynamic object. */ |
3044 | BFD_ASSERT (!(abfd->flags & DYNAMIC)); | |
3045 | ||
8afb0e02 NC |
3046 | globals = elf32_arm_hash_table (info); |
3047 | ||
3048 | BFD_ASSERT (globals != NULL); | |
3049 | ||
3050 | if (globals->bfd_of_glue_owner != NULL) | |
b34976b6 | 3051 | return TRUE; |
8afb0e02 | 3052 | |
252b5132 RH |
3053 | /* Save the bfd for later use. */ |
3054 | globals->bfd_of_glue_owner = abfd; | |
cedb70c5 | 3055 | |
b34976b6 | 3056 | return TRUE; |
252b5132 RH |
3057 | } |
3058 | ||
39b41c9c PB |
3059 | static void check_use_blx(struct elf32_arm_link_hash_table *globals) |
3060 | { | |
3061 | if (elf32_arm_get_eabi_attr_int (globals->obfd, Tag_CPU_arch) > 2) | |
3062 | globals->use_blx = 1; | |
3063 | } | |
3064 | ||
b34976b6 | 3065 | bfd_boolean |
57e8b36a | 3066 | bfd_elf32_arm_process_before_allocation (bfd *abfd, |
d504ffc8 | 3067 | struct bfd_link_info *link_info) |
252b5132 RH |
3068 | { |
3069 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 3070 | Elf_Internal_Rela *internal_relocs = NULL; |
252b5132 RH |
3071 | Elf_Internal_Rela *irel, *irelend; |
3072 | bfd_byte *contents = NULL; | |
252b5132 RH |
3073 | |
3074 | asection *sec; | |
3075 | struct elf32_arm_link_hash_table *globals; | |
3076 | ||
3077 | /* If we are only performing a partial link do not bother | |
3078 | to construct any glue. */ | |
1049f94e | 3079 | if (link_info->relocatable) |
b34976b6 | 3080 | return TRUE; |
252b5132 RH |
3081 | |
3082 | /* Here we have a bfd that is to be included on the link. We have a hook | |
3083 | to do reloc rummaging, before section sizes are nailed down. */ | |
252b5132 | 3084 | globals = elf32_arm_hash_table (link_info); |
39b41c9c | 3085 | check_use_blx (globals); |
252b5132 RH |
3086 | |
3087 | BFD_ASSERT (globals != NULL); | |
3088 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
3089 | ||
d504ffc8 | 3090 | if (globals->byteswap_code && !bfd_big_endian (abfd)) |
e489d0ae | 3091 | { |
d003868e AM |
3092 | _bfd_error_handler (_("%B: BE8 images only valid in big-endian mode."), |
3093 | abfd); | |
e489d0ae PB |
3094 | return FALSE; |
3095 | } | |
f21f3fe0 | 3096 | |
252b5132 RH |
3097 | /* Rummage around all the relocs and map the glue vectors. */ |
3098 | sec = abfd->sections; | |
3099 | ||
3100 | if (sec == NULL) | |
b34976b6 | 3101 | return TRUE; |
252b5132 RH |
3102 | |
3103 | for (; sec != NULL; sec = sec->next) | |
3104 | { | |
3105 | if (sec->reloc_count == 0) | |
3106 | continue; | |
3107 | ||
2f475487 AM |
3108 | if ((sec->flags & SEC_EXCLUDE) != 0) |
3109 | continue; | |
3110 | ||
252b5132 | 3111 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
252b5132 | 3112 | |
9b485d32 | 3113 | /* Load the relocs. */ |
6cdc0ccc | 3114 | internal_relocs |
57e8b36a | 3115 | = _bfd_elf_link_read_relocs (abfd, sec, (void *) NULL, |
45d6a902 | 3116 | (Elf_Internal_Rela *) NULL, FALSE); |
252b5132 | 3117 | |
6cdc0ccc AM |
3118 | if (internal_relocs == NULL) |
3119 | goto error_return; | |
252b5132 | 3120 | |
6cdc0ccc AM |
3121 | irelend = internal_relocs + sec->reloc_count; |
3122 | for (irel = internal_relocs; irel < irelend; irel++) | |
252b5132 RH |
3123 | { |
3124 | long r_type; | |
3125 | unsigned long r_index; | |
252b5132 RH |
3126 | |
3127 | struct elf_link_hash_entry *h; | |
3128 | ||
3129 | r_type = ELF32_R_TYPE (irel->r_info); | |
3130 | r_index = ELF32_R_SYM (irel->r_info); | |
3131 | ||
9b485d32 | 3132 | /* These are the only relocation types we care about. */ |
ba96a88f | 3133 | if ( r_type != R_ARM_PC24 |
b7693d02 | 3134 | && r_type != R_ARM_PLT32 |
5b5bb741 PB |
3135 | && r_type != R_ARM_CALL |
3136 | && r_type != R_ARM_JUMP24 | |
c19d1205 | 3137 | && r_type != R_ARM_THM_CALL) |
252b5132 RH |
3138 | continue; |
3139 | ||
3140 | /* Get the section contents if we haven't done so already. */ | |
3141 | if (contents == NULL) | |
3142 | { | |
3143 | /* Get cached copy if it exists. */ | |
3144 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
3145 | contents = elf_section_data (sec)->this_hdr.contents; | |
3146 | else | |
3147 | { | |
3148 | /* Go get them off disk. */ | |
57e8b36a | 3149 | if (! bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
3150 | goto error_return; |
3151 | } | |
3152 | } | |
3153 | ||
a7c10850 | 3154 | /* If the relocation is not against a symbol it cannot concern us. */ |
252b5132 RH |
3155 | h = NULL; |
3156 | ||
9b485d32 | 3157 | /* We don't care about local symbols. */ |
252b5132 RH |
3158 | if (r_index < symtab_hdr->sh_info) |
3159 | continue; | |
3160 | ||
9b485d32 | 3161 | /* This is an external symbol. */ |
252b5132 RH |
3162 | r_index -= symtab_hdr->sh_info; |
3163 | h = (struct elf_link_hash_entry *) | |
3164 | elf_sym_hashes (abfd)[r_index]; | |
3165 | ||
3166 | /* If the relocation is against a static symbol it must be within | |
3167 | the current section and so cannot be a cross ARM/Thumb relocation. */ | |
3168 | if (h == NULL) | |
3169 | continue; | |
3170 | ||
d504ffc8 DJ |
3171 | /* If the call will go through a PLT entry then we do not need |
3172 | glue. */ | |
3173 | if (globals->splt != NULL && h->plt.offset != (bfd_vma) -1) | |
b7693d02 DJ |
3174 | continue; |
3175 | ||
252b5132 RH |
3176 | switch (r_type) |
3177 | { | |
3178 | case R_ARM_PC24: | |
c6596c5e | 3179 | case R_ARM_PLT32: |
5b5bb741 PB |
3180 | case R_ARM_CALL: |
3181 | case R_ARM_JUMP24: | |
252b5132 | 3182 | /* This one is a call from arm code. We need to look up |
2f0ca46a | 3183 | the target of the call. If it is a thumb target, we |
252b5132 | 3184 | insert glue. */ |
39b41c9c PB |
3185 | if (ELF_ST_TYPE(h->type) == STT_ARM_TFUNC |
3186 | && !(r_type == R_ARM_CALL && globals->use_blx)) | |
252b5132 RH |
3187 | record_arm_to_thumb_glue (link_info, h); |
3188 | break; | |
3189 | ||
c19d1205 | 3190 | case R_ARM_THM_CALL: |
f21f3fe0 | 3191 | /* This one is a call from thumb code. We look |
2f0ca46a | 3192 | up the target of the call. If it is not a thumb |
bcbdc74c | 3193 | target, we insert glue. */ |
39b41c9c | 3194 | if (ELF_ST_TYPE (h->type) != STT_ARM_TFUNC && !globals->use_blx) |
252b5132 RH |
3195 | record_thumb_to_arm_glue (link_info, h); |
3196 | break; | |
3197 | ||
3198 | default: | |
c6596c5e | 3199 | abort (); |
252b5132 RH |
3200 | } |
3201 | } | |
6cdc0ccc AM |
3202 | |
3203 | if (contents != NULL | |
3204 | && elf_section_data (sec)->this_hdr.contents != contents) | |
3205 | free (contents); | |
3206 | contents = NULL; | |
3207 | ||
3208 | if (internal_relocs != NULL | |
3209 | && elf_section_data (sec)->relocs != internal_relocs) | |
3210 | free (internal_relocs); | |
3211 | internal_relocs = NULL; | |
252b5132 RH |
3212 | } |
3213 | ||
b34976b6 | 3214 | return TRUE; |
9a5aca8c | 3215 | |
252b5132 | 3216 | error_return: |
6cdc0ccc AM |
3217 | if (contents != NULL |
3218 | && elf_section_data (sec)->this_hdr.contents != contents) | |
3219 | free (contents); | |
3220 | if (internal_relocs != NULL | |
3221 | && elf_section_data (sec)->relocs != internal_relocs) | |
3222 | free (internal_relocs); | |
9a5aca8c | 3223 | |
b34976b6 | 3224 | return FALSE; |
252b5132 | 3225 | } |
7e392df6 | 3226 | #endif |
252b5132 | 3227 | |
eb043451 | 3228 | |
c7b8f16e JB |
3229 | /* Initialise maps of ARM/Thumb/data for input BFDs. */ |
3230 | ||
3231 | void | |
3232 | bfd_elf32_arm_init_maps (bfd *abfd) | |
3233 | { | |
3234 | Elf_Internal_Sym *isymbuf; | |
3235 | Elf_Internal_Shdr *hdr; | |
3236 | unsigned int i, localsyms; | |
3237 | ||
3238 | if ((abfd->flags & DYNAMIC) != 0) | |
3239 | return; | |
3240 | ||
3241 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
3242 | localsyms = hdr->sh_info; | |
3243 | ||
3244 | /* Obtain a buffer full of symbols for this BFD. The hdr->sh_info field | |
3245 | should contain the number of local symbols, which should come before any | |
3246 | global symbols. Mapping symbols are always local. */ | |
3247 | isymbuf = bfd_elf_get_elf_syms (abfd, hdr, localsyms, 0, NULL, NULL, | |
3248 | NULL); | |
3249 | ||
3250 | /* No internal symbols read? Skip this BFD. */ | |
3251 | if (isymbuf == NULL) | |
3252 | return; | |
3253 | ||
3254 | for (i = 0; i < localsyms; i++) | |
3255 | { | |
3256 | Elf_Internal_Sym *isym = &isymbuf[i]; | |
3257 | asection *sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
3258 | const char *name; | |
3259 | ||
3260 | if (sec != NULL | |
3261 | && ELF_ST_BIND (isym->st_info) == STB_LOCAL) | |
3262 | { | |
3263 | name = bfd_elf_string_from_elf_section (abfd, | |
3264 | hdr->sh_link, isym->st_name); | |
3265 | ||
3266 | if (bfd_is_arm_special_symbol_name (name, | |
3267 | BFD_ARM_SPECIAL_SYM_TYPE_MAP)) | |
3268 | elf32_arm_section_map_add (sec, name[1], isym->st_value); | |
3269 | } | |
3270 | } | |
3271 | } | |
3272 | ||
3273 | ||
3274 | void | |
3275 | bfd_elf32_arm_set_vfp11_fix (bfd *obfd, struct bfd_link_info *link_info) | |
3276 | { | |
3277 | struct elf32_arm_link_hash_table *globals = elf32_arm_hash_table (link_info); | |
3278 | aeabi_attribute *out_attr = elf32_arm_tdata (obfd)->known_eabi_attributes; | |
3279 | ||
3280 | /* We assume that ARMv7+ does not need the VFP11 denorm erratum fix. */ | |
3281 | if (out_attr[Tag_CPU_arch].i >= TAG_CPU_ARCH_V7) | |
3282 | { | |
3283 | switch (globals->vfp11_fix) | |
3284 | { | |
3285 | case BFD_ARM_VFP11_FIX_DEFAULT: | |
3286 | case BFD_ARM_VFP11_FIX_NONE: | |
3287 | globals->vfp11_fix = BFD_ARM_VFP11_FIX_NONE; | |
3288 | break; | |
3289 | ||
3290 | default: | |
3291 | /* Give a warning, but do as the user requests anyway. */ | |
3292 | (*_bfd_error_handler) (_("%B: warning: selected VFP11 erratum " | |
3293 | "workaround is not necessary for target architecture"), obfd); | |
3294 | } | |
3295 | } | |
3296 | else if (globals->vfp11_fix == BFD_ARM_VFP11_FIX_DEFAULT) | |
3297 | /* For earlier architectures, we might need the workaround, but do not | |
3298 | enable it by default. If users is running with broken hardware, they | |
3299 | must enable the erratum fix explicitly. */ | |
3300 | globals->vfp11_fix = BFD_ARM_VFP11_FIX_NONE; | |
3301 | } | |
3302 | ||
3303 | ||
3304 | enum bfd_arm_vfp11_pipe { | |
3305 | VFP11_FMAC, | |
3306 | VFP11_LS, | |
3307 | VFP11_DS, | |
3308 | VFP11_BAD | |
3309 | }; | |
3310 | ||
3311 | /* Return a VFP register number. This is encoded as RX:X for single-precision | |
3312 | registers, or X:RX for double-precision registers, where RX is the group of | |
3313 | four bits in the instruction encoding and X is the single extension bit. | |
3314 | RX and X fields are specified using their lowest (starting) bit. The return | |
3315 | value is: | |
3316 | ||
3317 | 0...31: single-precision registers s0...s31 | |
3318 | 32...63: double-precision registers d0...d31. | |
3319 | ||
3320 | Although X should be zero for VFP11 (encoding d0...d15 only), we might | |
3321 | encounter VFP3 instructions, so we allow the full range for DP registers. */ | |
3322 | ||
3323 | static unsigned int | |
3324 | bfd_arm_vfp11_regno (unsigned int insn, bfd_boolean is_double, unsigned int rx, | |
3325 | unsigned int x) | |
3326 | { | |
3327 | if (is_double) | |
3328 | return (((insn >> rx) & 0xf) | (((insn >> x) & 1) << 4)) + 32; | |
3329 | else | |
3330 | return (((insn >> rx) & 0xf) << 1) | ((insn >> x) & 1); | |
3331 | } | |
3332 | ||
3333 | /* Set bits in *WMASK according to a register number REG as encoded by | |
3334 | bfd_arm_vfp11_regno(). Ignore d16-d31. */ | |
3335 | ||
3336 | static void | |
3337 | bfd_arm_vfp11_write_mask (unsigned int *wmask, unsigned int reg) | |
3338 | { | |
3339 | if (reg < 32) | |
3340 | *wmask |= 1 << reg; | |
3341 | else if (reg < 48) | |
3342 | *wmask |= 3 << ((reg - 32) * 2); | |
3343 | } | |
3344 | ||
3345 | /* Return TRUE if WMASK overwrites anything in REGS. */ | |
3346 | ||
3347 | static bfd_boolean | |
3348 | bfd_arm_vfp11_antidependency (unsigned int wmask, int *regs, int numregs) | |
3349 | { | |
3350 | int i; | |
3351 | ||
3352 | for (i = 0; i < numregs; i++) | |
3353 | { | |
3354 | unsigned int reg = regs[i]; | |
3355 | ||
3356 | if (reg < 32 && (wmask & (1 << reg)) != 0) | |
3357 | return TRUE; | |
3358 | ||
3359 | reg -= 32; | |
3360 | ||
3361 | if (reg >= 16) | |
3362 | continue; | |
3363 | ||
3364 | if ((wmask & (3 << (reg * 2))) != 0) | |
3365 | return TRUE; | |
3366 | } | |
3367 | ||
3368 | return FALSE; | |
3369 | } | |
3370 | ||
3371 | /* In this function, we're interested in two things: finding input registers | |
3372 | for VFP data-processing instructions, and finding the set of registers which | |
3373 | arbitrary VFP instructions may write to. We use a 32-bit unsigned int to | |
3374 | hold the written set, so FLDM etc. are easy to deal with (we're only | |
3375 | interested in 32 SP registers or 16 dp registers, due to the VFP version | |
3376 | implemented by the chip in question). DP registers are marked by setting | |
3377 | both SP registers in the write mask). */ | |
3378 | ||
3379 | static enum bfd_arm_vfp11_pipe | |
3380 | bfd_arm_vfp11_insn_decode (unsigned int insn, unsigned int *destmask, int *regs, | |
3381 | int *numregs) | |
3382 | { | |
3383 | enum bfd_arm_vfp11_pipe pipe = VFP11_BAD; | |
3384 | bfd_boolean is_double = ((insn & 0xf00) == 0xb00) ? 1 : 0; | |
3385 | ||
3386 | if ((insn & 0x0f000e10) == 0x0e000a00) /* A data-processing insn. */ | |
3387 | { | |
3388 | unsigned int pqrs; | |
3389 | unsigned int fd = bfd_arm_vfp11_regno (insn, is_double, 12, 22); | |
3390 | unsigned int fm = bfd_arm_vfp11_regno (insn, is_double, 0, 5); | |
3391 | ||
3392 | pqrs = ((insn & 0x00800000) >> 20) | |
3393 | | ((insn & 0x00300000) >> 19) | |
3394 | | ((insn & 0x00000040) >> 6); | |
3395 | ||
3396 | switch (pqrs) | |
3397 | { | |
3398 | case 0: /* fmac[sd]. */ | |
3399 | case 1: /* fnmac[sd]. */ | |
3400 | case 2: /* fmsc[sd]. */ | |
3401 | case 3: /* fnmsc[sd]. */ | |
3402 | pipe = VFP11_FMAC; | |
3403 | bfd_arm_vfp11_write_mask (destmask, fd); | |
3404 | regs[0] = fd; | |
3405 | regs[1] = bfd_arm_vfp11_regno (insn, is_double, 16, 7); /* Fn. */ | |
3406 | regs[2] = fm; | |
3407 | *numregs = 3; | |
3408 | break; | |
3409 | ||
3410 | case 4: /* fmul[sd]. */ | |
3411 | case 5: /* fnmul[sd]. */ | |
3412 | case 6: /* fadd[sd]. */ | |
3413 | case 7: /* fsub[sd]. */ | |
3414 | pipe = VFP11_FMAC; | |
3415 | goto vfp_binop; | |
3416 | ||
3417 | case 8: /* fdiv[sd]. */ | |
3418 | pipe = VFP11_DS; | |
3419 | vfp_binop: | |
3420 | bfd_arm_vfp11_write_mask (destmask, fd); | |
3421 | regs[0] = bfd_arm_vfp11_regno (insn, is_double, 16, 7); /* Fn. */ | |
3422 | regs[1] = fm; | |
3423 | *numregs = 2; | |
3424 | break; | |
3425 | ||
3426 | case 15: /* extended opcode. */ | |
3427 | { | |
3428 | unsigned int extn = ((insn >> 15) & 0x1e) | |
3429 | | ((insn >> 7) & 1); | |
3430 | ||
3431 | switch (extn) | |
3432 | { | |
3433 | case 0: /* fcpy[sd]. */ | |
3434 | case 1: /* fabs[sd]. */ | |
3435 | case 2: /* fneg[sd]. */ | |
3436 | case 8: /* fcmp[sd]. */ | |
3437 | case 9: /* fcmpe[sd]. */ | |
3438 | case 10: /* fcmpz[sd]. */ | |
3439 | case 11: /* fcmpez[sd]. */ | |
3440 | case 16: /* fuito[sd]. */ | |
3441 | case 17: /* fsito[sd]. */ | |
3442 | case 24: /* ftoui[sd]. */ | |
3443 | case 25: /* ftouiz[sd]. */ | |
3444 | case 26: /* ftosi[sd]. */ | |
3445 | case 27: /* ftosiz[sd]. */ | |
3446 | /* These instructions will not bounce due to underflow. */ | |
3447 | *numregs = 0; | |
3448 | pipe = VFP11_FMAC; | |
3449 | break; | |
3450 | ||
3451 | case 3: /* fsqrt[sd]. */ | |
3452 | /* fsqrt cannot underflow, but it can (perhaps) overwrite | |
3453 | registers to cause the erratum in previous instructions. */ | |
3454 | bfd_arm_vfp11_write_mask (destmask, fd); | |
3455 | pipe = VFP11_DS; | |
3456 | break; | |
3457 | ||
3458 | case 15: /* fcvt{ds,sd}. */ | |
3459 | { | |
3460 | int rnum = 0; | |
3461 | ||
3462 | bfd_arm_vfp11_write_mask (destmask, fd); | |
3463 | ||
3464 | /* Only FCVTSD can underflow. */ | |
3465 | if ((insn & 0x100) != 0) | |
3466 | regs[rnum++] = fm; | |
3467 | ||
3468 | *numregs = rnum; | |
3469 | ||
3470 | pipe = VFP11_FMAC; | |
3471 | } | |
3472 | break; | |
3473 | ||
3474 | default: | |
3475 | return VFP11_BAD; | |
3476 | } | |
3477 | } | |
3478 | break; | |
3479 | ||
3480 | default: | |
3481 | return VFP11_BAD; | |
3482 | } | |
3483 | } | |
3484 | /* Two-register transfer. */ | |
3485 | else if ((insn & 0x0fe00ed0) == 0x0c400a10) | |
3486 | { | |
3487 | unsigned int fm = bfd_arm_vfp11_regno (insn, is_double, 0, 5); | |
3488 | ||
3489 | if ((insn & 0x100000) == 0) | |
3490 | { | |
3491 | if (is_double) | |
3492 | bfd_arm_vfp11_write_mask (destmask, fm); | |
3493 | else | |
3494 | { | |
3495 | bfd_arm_vfp11_write_mask (destmask, fm); | |
3496 | bfd_arm_vfp11_write_mask (destmask, fm + 1); | |
3497 | } | |
3498 | } | |
3499 | ||
3500 | pipe = VFP11_LS; | |
3501 | } | |
3502 | else if ((insn & 0x0e100e00) == 0x0c100a00) /* A load insn. */ | |
3503 | { | |
3504 | int fd = bfd_arm_vfp11_regno (insn, is_double, 12, 22); | |
3505 | unsigned int puw = ((insn >> 21) & 0x1) | (((insn >> 23) & 3) << 1); | |
3506 | ||
3507 | switch (puw) | |
3508 | { | |
3509 | case 0: /* Two-reg transfer. We should catch these above. */ | |
3510 | abort (); | |
3511 | ||
3512 | case 2: /* fldm[sdx]. */ | |
3513 | case 3: | |
3514 | case 5: | |
3515 | { | |
3516 | unsigned int i, offset = insn & 0xff; | |
3517 | ||
3518 | if (is_double) | |
3519 | offset >>= 1; | |
3520 | ||
3521 | for (i = fd; i < fd + offset; i++) | |
3522 | bfd_arm_vfp11_write_mask (destmask, i); | |
3523 | } | |
3524 | break; | |
3525 | ||
3526 | case 4: /* fld[sd]. */ | |
3527 | case 6: | |
3528 | bfd_arm_vfp11_write_mask (destmask, fd); | |
3529 | break; | |
3530 | ||
3531 | default: | |
3532 | return VFP11_BAD; | |
3533 | } | |
3534 | ||
3535 | pipe = VFP11_LS; | |
3536 | } | |
3537 | /* Single-register transfer. Note L==0. */ | |
3538 | else if ((insn & 0x0f100e10) == 0x0e000a10) | |
3539 | { | |
3540 | unsigned int opcode = (insn >> 21) & 7; | |
3541 | unsigned int fn = bfd_arm_vfp11_regno (insn, is_double, 16, 7); | |
3542 | ||
3543 | switch (opcode) | |
3544 | { | |
3545 | case 0: /* fmsr/fmdlr. */ | |
3546 | case 1: /* fmdhr. */ | |
3547 | /* Mark fmdhr and fmdlr as writing to the whole of the DP | |
3548 | destination register. I don't know if this is exactly right, | |
3549 | but it is the conservative choice. */ | |
3550 | bfd_arm_vfp11_write_mask (destmask, fn); | |
3551 | break; | |
3552 | ||
3553 | case 7: /* fmxr. */ | |
3554 | break; | |
3555 | } | |
3556 | ||
3557 | pipe = VFP11_LS; | |
3558 | } | |
3559 | ||
3560 | return pipe; | |
3561 | } | |
3562 | ||
3563 | ||
3564 | static int elf32_arm_compare_mapping (const void * a, const void * b); | |
3565 | ||
3566 | ||
3567 | /* Look for potentially-troublesome code sequences which might trigger the | |
3568 | VFP11 denormal/antidependency erratum. See, e.g., the ARM1136 errata sheet | |
3569 | (available from ARM) for details of the erratum. A short version is | |
3570 | described in ld.texinfo. */ | |
3571 | ||
3572 | bfd_boolean | |
3573 | bfd_elf32_arm_vfp11_erratum_scan (bfd *abfd, struct bfd_link_info *link_info) | |
3574 | { | |
3575 | asection *sec; | |
3576 | bfd_byte *contents = NULL; | |
3577 | int state = 0; | |
3578 | int regs[3], numregs = 0; | |
3579 | struct elf32_arm_link_hash_table *globals = elf32_arm_hash_table (link_info); | |
3580 | int use_vector = (globals->vfp11_fix == BFD_ARM_VFP11_FIX_VECTOR); | |
3581 | ||
3582 | /* We use a simple FSM to match troublesome VFP11 instruction sequences. | |
3583 | The states transition as follows: | |
3584 | ||
3585 | 0 -> 1 (vector) or 0 -> 2 (scalar) | |
3586 | A VFP FMAC-pipeline instruction has been seen. Fill | |
3587 | regs[0]..regs[numregs-1] with its input operands. Remember this | |
3588 | instruction in 'first_fmac'. | |
3589 | ||
3590 | 1 -> 2 | |
3591 | Any instruction, except for a VFP instruction which overwrites | |
3592 | regs[*]. | |
3593 | ||
3594 | 1 -> 3 [ -> 0 ] or | |
3595 | 2 -> 3 [ -> 0 ] | |
3596 | A VFP instruction has been seen which overwrites any of regs[*]. | |
3597 | We must make a veneer! Reset state to 0 before examining next | |
3598 | instruction. | |
3599 | ||
3600 | 2 -> 0 | |
3601 | If we fail to match anything in state 2, reset to state 0 and reset | |
3602 | the instruction pointer to the instruction after 'first_fmac'. | |
3603 | ||
3604 | If the VFP11 vector mode is in use, there must be at least two unrelated | |
3605 | instructions between anti-dependent VFP11 instructions to properly avoid | |
3606 | triggering the erratum, hence the use of the extra state 1. | |
3607 | */ | |
3608 | ||
3609 | /* If we are only performing a partial link do not bother | |
3610 | to construct any glue. */ | |
3611 | if (link_info->relocatable) | |
3612 | return TRUE; | |
3613 | ||
3614 | /* We should have chosen a fix type by the time we get here. */ | |
3615 | BFD_ASSERT (globals->vfp11_fix != BFD_ARM_VFP11_FIX_DEFAULT); | |
3616 | ||
3617 | if (globals->vfp11_fix == BFD_ARM_VFP11_FIX_NONE) | |
3618 | return TRUE; | |
3619 | ||
3620 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
3621 | { | |
3622 | unsigned int i, span, first_fmac = 0, veneer_of_insn = 0; | |
3623 | struct _arm_elf_section_data *sec_data; | |
3624 | ||
3625 | /* If we don't have executable progbits, we're not interested in this | |
3626 | section. Also skip if section is to be excluded. */ | |
3627 | if (elf_section_type (sec) != SHT_PROGBITS | |
3628 | || (elf_section_flags (sec) & SHF_EXECINSTR) == 0 | |
3629 | || (sec->flags & SEC_EXCLUDE) != 0 | |
3630 | || strcmp (sec->name, VFP11_ERRATUM_VENEER_SECTION_NAME) == 0) | |
3631 | continue; | |
3632 | ||
3633 | sec_data = elf32_arm_section_data (sec); | |
3634 | ||
3635 | if (sec_data->mapcount == 0) | |
3636 | continue; | |
3637 | ||
3638 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
3639 | contents = elf_section_data (sec)->this_hdr.contents; | |
3640 | else if (! bfd_malloc_and_get_section (abfd, sec, &contents)) | |
3641 | goto error_return; | |
3642 | ||
3643 | qsort (sec_data->map, sec_data->mapcount, sizeof (elf32_arm_section_map), | |
3644 | elf32_arm_compare_mapping); | |
3645 | ||
3646 | for (span = 0; span < sec_data->mapcount; span++) | |
3647 | { | |
3648 | unsigned int span_start = sec_data->map[span].vma; | |
3649 | unsigned int span_end = (span == sec_data->mapcount - 1) | |
3650 | ? sec->size : sec_data->map[span + 1].vma; | |
3651 | char span_type = sec_data->map[span].type; | |
3652 | ||
3653 | /* FIXME: Only ARM mode is supported at present. We may need to | |
3654 | support Thumb-2 mode also at some point. */ | |
3655 | if (span_type != 'a') | |
3656 | continue; | |
3657 | ||
3658 | for (i = span_start; i < span_end;) | |
3659 | { | |
3660 | unsigned int next_i = i + 4; | |
3661 | unsigned int insn = bfd_big_endian (abfd) | |
3662 | ? (contents[i] << 24) | |
3663 | | (contents[i + 1] << 16) | |
3664 | | (contents[i + 2] << 8) | |
3665 | | contents[i + 3] | |
3666 | : (contents[i + 3] << 24) | |
3667 | | (contents[i + 2] << 16) | |
3668 | | (contents[i + 1] << 8) | |
3669 | | contents[i]; | |
3670 | unsigned int writemask = 0; | |
3671 | enum bfd_arm_vfp11_pipe pipe; | |
3672 | ||
3673 | switch (state) | |
3674 | { | |
3675 | case 0: | |
3676 | pipe = bfd_arm_vfp11_insn_decode (insn, &writemask, regs, | |
3677 | &numregs); | |
3678 | /* I'm assuming the VFP11 erratum can trigger with denorm | |
3679 | operands on either the FMAC or the DS pipeline. This might | |
3680 | lead to slightly overenthusiastic veneer insertion. */ | |
3681 | if (pipe == VFP11_FMAC || pipe == VFP11_DS) | |
3682 | { | |
3683 | state = use_vector ? 1 : 2; | |
3684 | first_fmac = i; | |
3685 | veneer_of_insn = insn; | |
3686 | } | |
3687 | break; | |
3688 | ||
3689 | case 1: | |
3690 | { | |
3691 | int other_regs[3], other_numregs; | |
3692 | pipe = bfd_arm_vfp11_insn_decode (insn, &writemask, | |
3693 | other_regs, | |
3694 | &other_numregs); | |
3695 | if (pipe != VFP11_BAD | |
3696 | && bfd_arm_vfp11_antidependency (writemask, regs, | |
3697 | numregs)) | |
3698 | state = 3; | |
3699 | else | |
3700 | state = 2; | |
3701 | } | |
3702 | break; | |
3703 | ||
3704 | case 2: | |
3705 | { | |
3706 | int other_regs[3], other_numregs; | |
3707 | pipe = bfd_arm_vfp11_insn_decode (insn, &writemask, | |
3708 | other_regs, | |
3709 | &other_numregs); | |
3710 | if (pipe != VFP11_BAD | |
3711 | && bfd_arm_vfp11_antidependency (writemask, regs, | |
3712 | numregs)) | |
3713 | state = 3; | |
3714 | else | |
3715 | { | |
3716 | state = 0; | |
3717 | next_i = first_fmac + 4; | |
3718 | } | |
3719 | } | |
3720 | break; | |
3721 | ||
3722 | case 3: | |
3723 | abort (); /* Should be unreachable. */ | |
3724 | } | |
3725 | ||
3726 | if (state == 3) | |
3727 | { | |
3728 | elf32_vfp11_erratum_list *newerr | |
3729 | = bfd_zmalloc (sizeof (elf32_vfp11_erratum_list)); | |
3730 | int errcount; | |
3731 | ||
3732 | errcount = ++(elf32_arm_section_data (sec)->erratumcount); | |
3733 | ||
3734 | newerr->u.b.vfp_insn = veneer_of_insn; | |
3735 | ||
3736 | switch (span_type) | |
3737 | { | |
3738 | case 'a': | |
3739 | newerr->type = VFP11_ERRATUM_BRANCH_TO_ARM_VENEER; | |
3740 | break; | |
3741 | ||
3742 | default: | |
3743 | abort (); | |
3744 | } | |
3745 | ||
3746 | record_vfp11_erratum_veneer (link_info, newerr, abfd, sec, | |
3747 | first_fmac); | |
3748 | ||
3749 | newerr->vma = -1; | |
3750 | ||
3751 | newerr->next = sec_data->erratumlist; | |
3752 | sec_data->erratumlist = newerr; | |
3753 | ||
3754 | state = 0; | |
3755 | } | |
3756 | ||
3757 | i = next_i; | |
3758 | } | |
3759 | } | |
3760 | ||
3761 | if (contents != NULL | |
3762 | && elf_section_data (sec)->this_hdr.contents != contents) | |
3763 | free (contents); | |
3764 | contents = NULL; | |
3765 | } | |
3766 | ||
3767 | return TRUE; | |
3768 | ||
3769 | error_return: | |
3770 | if (contents != NULL | |
3771 | && elf_section_data (sec)->this_hdr.contents != contents) | |
3772 | free (contents); | |
3773 | ||
3774 | return FALSE; | |
3775 | } | |
3776 | ||
3777 | /* Find virtual-memory addresses for VFP11 erratum veneers and return locations | |
3778 | after sections have been laid out, using specially-named symbols. */ | |
3779 | ||
3780 | void | |
3781 | bfd_elf32_arm_vfp11_fix_veneer_locations (bfd *abfd, | |
3782 | struct bfd_link_info *link_info) | |
3783 | { | |
3784 | asection *sec; | |
3785 | struct elf32_arm_link_hash_table *globals; | |
3786 | char *tmp_name; | |
3787 | ||
3788 | if (link_info->relocatable) | |
3789 | return; | |
3790 | ||
3791 | globals = elf32_arm_hash_table (link_info); | |
3792 | ||
3793 | tmp_name = bfd_malloc ((bfd_size_type) strlen | |
3794 | (VFP11_ERRATUM_VENEER_ENTRY_NAME) + 10); | |
3795 | ||
3796 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
3797 | { | |
3798 | struct _arm_elf_section_data *sec_data = elf32_arm_section_data (sec); | |
3799 | elf32_vfp11_erratum_list *errnode = sec_data->erratumlist; | |
3800 | ||
3801 | for (; errnode != NULL; errnode = errnode->next) | |
3802 | { | |
3803 | struct elf_link_hash_entry *myh; | |
3804 | bfd_vma vma; | |
3805 | ||
3806 | switch (errnode->type) | |
3807 | { | |
3808 | case VFP11_ERRATUM_BRANCH_TO_ARM_VENEER: | |
3809 | case VFP11_ERRATUM_BRANCH_TO_THUMB_VENEER: | |
3810 | /* Find veneer symbol. */ | |
3811 | sprintf (tmp_name, VFP11_ERRATUM_VENEER_ENTRY_NAME, | |
3812 | errnode->u.b.veneer->u.v.id); | |
3813 | ||
3814 | myh = elf_link_hash_lookup | |
3815 | (&(globals)->root, tmp_name, FALSE, FALSE, TRUE); | |
3816 | ||
3817 | if (myh == NULL) | |
3818 | (*_bfd_error_handler) (_("%B: unable to find VFP11 veneer " | |
3819 | "`%s'"), abfd, tmp_name); | |
3820 | ||
3821 | vma = myh->root.u.def.section->output_section->vma | |
3822 | + myh->root.u.def.section->output_offset | |
3823 | + myh->root.u.def.value; | |
3824 | ||
3825 | errnode->u.b.veneer->vma = vma; | |
3826 | break; | |
3827 | ||
3828 | case VFP11_ERRATUM_ARM_VENEER: | |
3829 | case VFP11_ERRATUM_THUMB_VENEER: | |
3830 | /* Find return location. */ | |
3831 | sprintf (tmp_name, VFP11_ERRATUM_VENEER_ENTRY_NAME "_r", | |
3832 | errnode->u.v.id); | |
3833 | ||
3834 | myh = elf_link_hash_lookup | |
3835 | (&(globals)->root, tmp_name, FALSE, FALSE, TRUE); | |
3836 | ||
3837 | if (myh == NULL) | |
3838 | (*_bfd_error_handler) (_("%B: unable to find VFP11 veneer " | |
3839 | "`%s'"), abfd, tmp_name); | |
3840 | ||
3841 | vma = myh->root.u.def.section->output_section->vma | |
3842 | + myh->root.u.def.section->output_offset | |
3843 | + myh->root.u.def.value; | |
3844 | ||
3845 | errnode->u.v.branch->vma = vma; | |
3846 | break; | |
3847 | ||
3848 | default: | |
3849 | abort (); | |
3850 | } | |
3851 | } | |
3852 | } | |
3853 | ||
3854 | free (tmp_name); | |
3855 | } | |
3856 | ||
3857 | ||
eb043451 PB |
3858 | /* Set target relocation values needed during linking. */ |
3859 | ||
3860 | void | |
3861 | bfd_elf32_arm_set_target_relocs (struct bfd_link_info *link_info, | |
3862 | int target1_is_rel, | |
319850b4 | 3863 | char * target2_type, |
33bfe774 | 3864 | int fix_v4bx, |
c7b8f16e JB |
3865 | int use_blx, |
3866 | bfd_arm_vfp11_fix vfp11_fix) | |
eb043451 PB |
3867 | { |
3868 | struct elf32_arm_link_hash_table *globals; | |
3869 | ||
3870 | globals = elf32_arm_hash_table (link_info); | |
3871 | ||
3872 | globals->target1_is_rel = target1_is_rel; | |
3873 | if (strcmp (target2_type, "rel") == 0) | |
3874 | globals->target2_reloc = R_ARM_REL32; | |
eeac373a PB |
3875 | else if (strcmp (target2_type, "abs") == 0) |
3876 | globals->target2_reloc = R_ARM_ABS32; | |
eb043451 PB |
3877 | else if (strcmp (target2_type, "got-rel") == 0) |
3878 | globals->target2_reloc = R_ARM_GOT_PREL; | |
3879 | else | |
3880 | { | |
3881 | _bfd_error_handler (_("Invalid TARGET2 relocation type '%s'."), | |
3882 | target2_type); | |
3883 | } | |
319850b4 | 3884 | globals->fix_v4bx = fix_v4bx; |
33bfe774 | 3885 | globals->use_blx |= use_blx; |
c7b8f16e | 3886 | globals->vfp11_fix = vfp11_fix; |
eb043451 | 3887 | } |
eb043451 | 3888 | |
252b5132 RH |
3889 | /* The thumb form of a long branch is a bit finicky, because the offset |
3890 | encoding is split over two fields, each in it's own instruction. They | |
f21f3fe0 | 3891 | can occur in any order. So given a thumb form of long branch, and an |
252b5132 | 3892 | offset, insert the offset into the thumb branch and return finished |
f21f3fe0 | 3893 | instruction. |
252b5132 | 3894 | |
f21f3fe0 | 3895 | It takes two thumb instructions to encode the target address. Each has |
4cc11e76 | 3896 | 11 bits to invest. The upper 11 bits are stored in one (identified by |
f21f3fe0 UD |
3897 | H-0.. see below), the lower 11 bits are stored in the other (identified |
3898 | by H-1). | |
252b5132 | 3899 | |
f21f3fe0 | 3900 | Combine together and shifted left by 1 (it's a half word address) and |
252b5132 RH |
3901 | there you have it. |
3902 | ||
3903 | Op: 1111 = F, | |
3904 | H-0, upper address-0 = 000 | |
3905 | Op: 1111 = F, | |
3906 | H-1, lower address-0 = 800 | |
3907 | ||
f21f3fe0 | 3908 | They can be ordered either way, but the arm tools I've seen always put |
252b5132 RH |
3909 | the lower one first. It probably doesn't matter. krk@cygnus.com |
3910 | ||
3911 | XXX: Actually the order does matter. The second instruction (H-1) | |
3912 | moves the computed address into the PC, so it must be the second one | |
3913 | in the sequence. The problem, however is that whilst little endian code | |
3914 | stores the instructions in HI then LOW order, big endian code does the | |
dfc5f959 | 3915 | reverse. nickc@cygnus.com. */ |
252b5132 | 3916 | |
dfc5f959 NC |
3917 | #define LOW_HI_ORDER 0xF800F000 |
3918 | #define HI_LOW_ORDER 0xF000F800 | |
252b5132 RH |
3919 | |
3920 | static insn32 | |
57e8b36a | 3921 | insert_thumb_branch (insn32 br_insn, int rel_off) |
252b5132 RH |
3922 | { |
3923 | unsigned int low_bits; | |
3924 | unsigned int high_bits; | |
3925 | ||
252b5132 RH |
3926 | BFD_ASSERT ((rel_off & 1) != 1); |
3927 | ||
dfc5f959 NC |
3928 | rel_off >>= 1; /* Half word aligned address. */ |
3929 | low_bits = rel_off & 0x000007FF; /* The bottom 11 bits. */ | |
3930 | high_bits = (rel_off >> 11) & 0x000007FF; /* The top 11 bits. */ | |
252b5132 RH |
3931 | |
3932 | if ((br_insn & LOW_HI_ORDER) == LOW_HI_ORDER) | |
3933 | br_insn = LOW_HI_ORDER | (low_bits << 16) | high_bits; | |
3934 | else if ((br_insn & HI_LOW_ORDER) == HI_LOW_ORDER) | |
3935 | br_insn = HI_LOW_ORDER | (high_bits << 16) | low_bits; | |
3936 | else | |
9b485d32 | 3937 | /* FIXME: abort is probably not the right call. krk@cygnus.com */ |
57e8b36a | 3938 | abort (); /* Error - not a valid branch instruction form. */ |
252b5132 | 3939 | |
252b5132 RH |
3940 | return br_insn; |
3941 | } | |
3942 | ||
52ab56c2 PB |
3943 | |
3944 | /* Store an Arm insn into an output section not processed by | |
3945 | elf32_arm_write_section. */ | |
3946 | ||
3947 | static void | |
3948 | put_arm_insn (struct elf32_arm_link_hash_table *htab, | |
3949 | bfd * output_bfd, bfd_vma val, void * ptr) | |
3950 | { | |
3951 | if (htab->byteswap_code != bfd_little_endian (output_bfd)) | |
3952 | bfd_putl32 (val, ptr); | |
3953 | else | |
3954 | bfd_putb32 (val, ptr); | |
3955 | } | |
3956 | ||
3957 | ||
3958 | /* Store a 16-bit Thumb insn into an output section not processed by | |
3959 | elf32_arm_write_section. */ | |
3960 | ||
3961 | static void | |
3962 | put_thumb_insn (struct elf32_arm_link_hash_table *htab, | |
3963 | bfd * output_bfd, bfd_vma val, void * ptr) | |
3964 | { | |
3965 | if (htab->byteswap_code != bfd_little_endian (output_bfd)) | |
3966 | bfd_putl16 (val, ptr); | |
3967 | else | |
3968 | bfd_putb16 (val, ptr); | |
3969 | } | |
3970 | ||
3971 | ||
9b485d32 NC |
3972 | /* Thumb code calling an ARM function. */ |
3973 | ||
252b5132 | 3974 | static int |
57e8b36a NC |
3975 | elf32_thumb_to_arm_stub (struct bfd_link_info * info, |
3976 | const char * name, | |
3977 | bfd * input_bfd, | |
3978 | bfd * output_bfd, | |
3979 | asection * input_section, | |
3980 | bfd_byte * hit_data, | |
3981 | asection * sym_sec, | |
3982 | bfd_vma offset, | |
3983 | bfd_signed_vma addend, | |
f2a9dd69 DJ |
3984 | bfd_vma val, |
3985 | char **error_message) | |
252b5132 | 3986 | { |
bcbdc74c | 3987 | asection * s = 0; |
dc810e39 | 3988 | bfd_vma my_offset; |
252b5132 RH |
3989 | unsigned long int tmp; |
3990 | long int ret_offset; | |
bcbdc74c NC |
3991 | struct elf_link_hash_entry * myh; |
3992 | struct elf32_arm_link_hash_table * globals; | |
252b5132 | 3993 | |
f2a9dd69 | 3994 | myh = find_thumb_glue (info, name, error_message); |
252b5132 | 3995 | if (myh == NULL) |
b34976b6 | 3996 | return FALSE; |
252b5132 RH |
3997 | |
3998 | globals = elf32_arm_hash_table (info); | |
3999 | ||
4000 | BFD_ASSERT (globals != NULL); | |
4001 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
4002 | ||
4003 | my_offset = myh->root.u.def.value; | |
4004 | ||
4005 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, | |
4006 | THUMB2ARM_GLUE_SECTION_NAME); | |
4007 | ||
4008 | BFD_ASSERT (s != NULL); | |
4009 | BFD_ASSERT (s->contents != NULL); | |
4010 | BFD_ASSERT (s->output_section != NULL); | |
4011 | ||
4012 | if ((my_offset & 0x01) == 0x01) | |
4013 | { | |
4014 | if (sym_sec != NULL | |
4015 | && sym_sec->owner != NULL | |
4016 | && !INTERWORK_FLAG (sym_sec->owner)) | |
4017 | { | |
8f615d07 | 4018 | (*_bfd_error_handler) |
d003868e AM |
4019 | (_("%B(%s): warning: interworking not enabled.\n" |
4020 | " first occurrence: %B: thumb call to arm"), | |
4021 | sym_sec->owner, input_bfd, name); | |
252b5132 | 4022 | |
b34976b6 | 4023 | return FALSE; |
252b5132 RH |
4024 | } |
4025 | ||
4026 | --my_offset; | |
4027 | myh->root.u.def.value = my_offset; | |
4028 | ||
52ab56c2 PB |
4029 | put_thumb_insn (globals, output_bfd, (bfd_vma) t2a1_bx_pc_insn, |
4030 | s->contents + my_offset); | |
252b5132 | 4031 | |
52ab56c2 PB |
4032 | put_thumb_insn (globals, output_bfd, (bfd_vma) t2a2_noop_insn, |
4033 | s->contents + my_offset + 2); | |
252b5132 RH |
4034 | |
4035 | ret_offset = | |
9b485d32 NC |
4036 | /* Address of destination of the stub. */ |
4037 | ((bfd_signed_vma) val) | |
252b5132 | 4038 | - ((bfd_signed_vma) |
57e8b36a NC |
4039 | /* Offset from the start of the current section |
4040 | to the start of the stubs. */ | |
9b485d32 NC |
4041 | (s->output_offset |
4042 | /* Offset of the start of this stub from the start of the stubs. */ | |
4043 | + my_offset | |
4044 | /* Address of the start of the current section. */ | |
4045 | + s->output_section->vma) | |
4046 | /* The branch instruction is 4 bytes into the stub. */ | |
4047 | + 4 | |
4048 | /* ARM branches work from the pc of the instruction + 8. */ | |
4049 | + 8); | |
252b5132 | 4050 | |
52ab56c2 PB |
4051 | put_arm_insn (globals, output_bfd, |
4052 | (bfd_vma) t2a3_b_insn | ((ret_offset >> 2) & 0x00FFFFFF), | |
4053 | s->contents + my_offset + 4); | |
252b5132 RH |
4054 | } |
4055 | ||
4056 | BFD_ASSERT (my_offset <= globals->thumb_glue_size); | |
4057 | ||
427bfd90 NC |
4058 | /* Now go back and fix up the original BL insn to point to here. */ |
4059 | ret_offset = | |
4060 | /* Address of where the stub is located. */ | |
4061 | (s->output_section->vma + s->output_offset + my_offset) | |
4062 | /* Address of where the BL is located. */ | |
57e8b36a NC |
4063 | - (input_section->output_section->vma + input_section->output_offset |
4064 | + offset) | |
427bfd90 NC |
4065 | /* Addend in the relocation. */ |
4066 | - addend | |
4067 | /* Biassing for PC-relative addressing. */ | |
4068 | - 8; | |
252b5132 RH |
4069 | |
4070 | tmp = bfd_get_32 (input_bfd, hit_data | |
4071 | - input_section->vma); | |
4072 | ||
4073 | bfd_put_32 (output_bfd, | |
dc810e39 | 4074 | (bfd_vma) insert_thumb_branch (tmp, ret_offset), |
252b5132 RH |
4075 | hit_data - input_section->vma); |
4076 | ||
b34976b6 | 4077 | return TRUE; |
252b5132 RH |
4078 | } |
4079 | ||
a4fd1a8e | 4080 | /* Populate an Arm to Thumb stub. Returns the stub symbol. */ |
9b485d32 | 4081 | |
a4fd1a8e PB |
4082 | static struct elf_link_hash_entry * |
4083 | elf32_arm_create_thumb_stub (struct bfd_link_info * info, | |
4084 | const char * name, | |
4085 | bfd * input_bfd, | |
4086 | bfd * output_bfd, | |
4087 | asection * sym_sec, | |
4088 | bfd_vma val, | |
f2a9dd69 DJ |
4089 | asection *s, |
4090 | char **error_message) | |
252b5132 | 4091 | { |
dc810e39 | 4092 | bfd_vma my_offset; |
252b5132 | 4093 | long int ret_offset; |
bcbdc74c NC |
4094 | struct elf_link_hash_entry * myh; |
4095 | struct elf32_arm_link_hash_table * globals; | |
252b5132 | 4096 | |
f2a9dd69 | 4097 | myh = find_arm_glue (info, name, error_message); |
252b5132 | 4098 | if (myh == NULL) |
a4fd1a8e | 4099 | return NULL; |
252b5132 RH |
4100 | |
4101 | globals = elf32_arm_hash_table (info); | |
4102 | ||
4103 | BFD_ASSERT (globals != NULL); | |
4104 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
4105 | ||
4106 | my_offset = myh->root.u.def.value; | |
252b5132 RH |
4107 | |
4108 | if ((my_offset & 0x01) == 0x01) | |
4109 | { | |
4110 | if (sym_sec != NULL | |
4111 | && sym_sec->owner != NULL | |
4112 | && !INTERWORK_FLAG (sym_sec->owner)) | |
4113 | { | |
8f615d07 | 4114 | (*_bfd_error_handler) |
d003868e AM |
4115 | (_("%B(%s): warning: interworking not enabled.\n" |
4116 | " first occurrence: %B: arm call to thumb"), | |
4117 | sym_sec->owner, input_bfd, name); | |
252b5132 | 4118 | } |
9b485d32 | 4119 | |
252b5132 RH |
4120 | --my_offset; |
4121 | myh->root.u.def.value = my_offset; | |
4122 | ||
8f6277f5 PB |
4123 | if ((info->shared || globals->root.is_relocatable_executable)) |
4124 | { | |
4125 | /* For relocatable objects we can't use absolute addresses, | |
4126 | so construct the address from a relative offset. */ | |
4127 | /* TODO: If the offset is small it's probably worth | |
4128 | constructing the address with adds. */ | |
52ab56c2 PB |
4129 | put_arm_insn (globals, output_bfd, (bfd_vma) a2t1p_ldr_insn, |
4130 | s->contents + my_offset); | |
4131 | put_arm_insn (globals, output_bfd, (bfd_vma) a2t2p_add_pc_insn, | |
4132 | s->contents + my_offset + 4); | |
4133 | put_arm_insn (globals, output_bfd, (bfd_vma) a2t3p_bx_r12_insn, | |
4134 | s->contents + my_offset + 8); | |
8f6277f5 PB |
4135 | /* Adjust the offset by 4 for the position of the add, |
4136 | and 8 for the pipeline offset. */ | |
4137 | ret_offset = (val - (s->output_offset | |
4138 | + s->output_section->vma | |
4139 | + my_offset + 12)) | |
4140 | | 1; | |
4141 | bfd_put_32 (output_bfd, ret_offset, | |
4142 | s->contents + my_offset + 12); | |
4143 | } | |
4144 | else | |
4145 | { | |
52ab56c2 PB |
4146 | put_arm_insn (globals, output_bfd, (bfd_vma) a2t1_ldr_insn, |
4147 | s->contents + my_offset); | |
252b5132 | 4148 | |
52ab56c2 PB |
4149 | put_arm_insn (globals, output_bfd, (bfd_vma) a2t2_bx_r12_insn, |
4150 | s->contents + my_offset + 4); | |
252b5132 | 4151 | |
8f6277f5 PB |
4152 | /* It's a thumb address. Add the low order bit. */ |
4153 | bfd_put_32 (output_bfd, val | a2t3_func_addr_insn, | |
4154 | s->contents + my_offset + 8); | |
4155 | } | |
252b5132 RH |
4156 | } |
4157 | ||
4158 | BFD_ASSERT (my_offset <= globals->arm_glue_size); | |
4159 | ||
a4fd1a8e PB |
4160 | return myh; |
4161 | } | |
4162 | ||
4163 | /* Arm code calling a Thumb function. */ | |
4164 | ||
4165 | static int | |
4166 | elf32_arm_to_thumb_stub (struct bfd_link_info * info, | |
4167 | const char * name, | |
4168 | bfd * input_bfd, | |
4169 | bfd * output_bfd, | |
4170 | asection * input_section, | |
4171 | bfd_byte * hit_data, | |
4172 | asection * sym_sec, | |
4173 | bfd_vma offset, | |
4174 | bfd_signed_vma addend, | |
f2a9dd69 DJ |
4175 | bfd_vma val, |
4176 | char **error_message) | |
a4fd1a8e PB |
4177 | { |
4178 | unsigned long int tmp; | |
4179 | bfd_vma my_offset; | |
4180 | asection * s; | |
4181 | long int ret_offset; | |
4182 | struct elf_link_hash_entry * myh; | |
4183 | struct elf32_arm_link_hash_table * globals; | |
4184 | ||
4185 | globals = elf32_arm_hash_table (info); | |
4186 | ||
4187 | BFD_ASSERT (globals != NULL); | |
4188 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
4189 | ||
4190 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, | |
4191 | ARM2THUMB_GLUE_SECTION_NAME); | |
4192 | BFD_ASSERT (s != NULL); | |
4193 | BFD_ASSERT (s->contents != NULL); | |
4194 | BFD_ASSERT (s->output_section != NULL); | |
4195 | ||
4196 | myh = elf32_arm_create_thumb_stub (info, name, input_bfd, output_bfd, | |
f2a9dd69 | 4197 | sym_sec, val, s, error_message); |
a4fd1a8e PB |
4198 | if (!myh) |
4199 | return FALSE; | |
4200 | ||
4201 | my_offset = myh->root.u.def.value; | |
252b5132 RH |
4202 | tmp = bfd_get_32 (input_bfd, hit_data); |
4203 | tmp = tmp & 0xFF000000; | |
4204 | ||
9b485d32 | 4205 | /* Somehow these are both 4 too far, so subtract 8. */ |
dc810e39 AM |
4206 | ret_offset = (s->output_offset |
4207 | + my_offset | |
4208 | + s->output_section->vma | |
4209 | - (input_section->output_offset | |
4210 | + input_section->output_section->vma | |
4211 | + offset + addend) | |
4212 | - 8); | |
9a5aca8c | 4213 | |
252b5132 RH |
4214 | tmp = tmp | ((ret_offset >> 2) & 0x00FFFFFF); |
4215 | ||
dc810e39 | 4216 | bfd_put_32 (output_bfd, (bfd_vma) tmp, hit_data - input_section->vma); |
252b5132 | 4217 | |
b34976b6 | 4218 | return TRUE; |
252b5132 RH |
4219 | } |
4220 | ||
a4fd1a8e PB |
4221 | /* Populate Arm stub for an exported Thumb function. */ |
4222 | ||
4223 | static bfd_boolean | |
4224 | elf32_arm_to_thumb_export_stub (struct elf_link_hash_entry *h, void * inf) | |
4225 | { | |
4226 | struct bfd_link_info * info = (struct bfd_link_info *) inf; | |
4227 | asection * s; | |
4228 | struct elf_link_hash_entry * myh; | |
4229 | struct elf32_arm_link_hash_entry *eh; | |
4230 | struct elf32_arm_link_hash_table * globals; | |
4231 | asection *sec; | |
4232 | bfd_vma val; | |
f2a9dd69 | 4233 | char *error_message; |
a4fd1a8e PB |
4234 | |
4235 | eh = elf32_arm_hash_entry(h); | |
4236 | /* Allocate stubs for exported Thumb functions on v4t. */ | |
4237 | if (eh->export_glue == NULL) | |
4238 | return TRUE; | |
4239 | ||
4240 | globals = elf32_arm_hash_table (info); | |
4241 | ||
4242 | BFD_ASSERT (globals != NULL); | |
4243 | BFD_ASSERT (globals->bfd_of_glue_owner != NULL); | |
4244 | ||
4245 | s = bfd_get_section_by_name (globals->bfd_of_glue_owner, | |
4246 | ARM2THUMB_GLUE_SECTION_NAME); | |
4247 | BFD_ASSERT (s != NULL); | |
4248 | BFD_ASSERT (s->contents != NULL); | |
4249 | BFD_ASSERT (s->output_section != NULL); | |
4250 | ||
4251 | sec = eh->export_glue->root.u.def.section; | |
0eaedd0e PB |
4252 | |
4253 | BFD_ASSERT (sec->output_section != NULL); | |
4254 | ||
a4fd1a8e PB |
4255 | val = eh->export_glue->root.u.def.value + sec->output_offset |
4256 | + sec->output_section->vma; | |
4257 | myh = elf32_arm_create_thumb_stub (info, h->root.root.string, | |
4258 | h->root.u.def.section->owner, | |
f2a9dd69 DJ |
4259 | globals->obfd, sec, val, s, |
4260 | &error_message); | |
a4fd1a8e PB |
4261 | BFD_ASSERT (myh); |
4262 | return TRUE; | |
4263 | } | |
4264 | ||
4265 | /* Generate Arm stubs for exported Thumb symbols. */ | |
4266 | static void | |
4267 | elf32_arm_begin_write_processing (bfd *abfd ATTRIBUTE_UNUSED, | |
4268 | struct bfd_link_info *link_info) | |
4269 | { | |
4270 | struct elf32_arm_link_hash_table * globals; | |
4271 | ||
4272 | if (!link_info) | |
4273 | return; | |
4274 | ||
4275 | globals = elf32_arm_hash_table (link_info); | |
84c08195 PB |
4276 | /* If blx is available then exported Thumb symbols are OK and there is |
4277 | nothing to do. */ | |
a4fd1a8e PB |
4278 | if (globals->use_blx) |
4279 | return; | |
4280 | ||
4281 | elf_link_hash_traverse (&globals->root, elf32_arm_to_thumb_export_stub, | |
4282 | link_info); | |
4283 | } | |
4284 | ||
eb043451 PB |
4285 | /* Some relocations map to different relocations depending on the |
4286 | target. Return the real relocation. */ | |
4287 | static int | |
4288 | arm_real_reloc_type (struct elf32_arm_link_hash_table * globals, | |
4289 | int r_type) | |
4290 | { | |
4291 | switch (r_type) | |
4292 | { | |
4293 | case R_ARM_TARGET1: | |
4294 | if (globals->target1_is_rel) | |
4295 | return R_ARM_REL32; | |
4296 | else | |
4297 | return R_ARM_ABS32; | |
4298 | ||
4299 | case R_ARM_TARGET2: | |
4300 | return globals->target2_reloc; | |
4301 | ||
4302 | default: | |
4303 | return r_type; | |
4304 | } | |
4305 | } | |
eb043451 | 4306 | |
ba93b8ac DJ |
4307 | /* Return the base VMA address which should be subtracted from real addresses |
4308 | when resolving @dtpoff relocation. | |
4309 | This is PT_TLS segment p_vaddr. */ | |
4310 | ||
4311 | static bfd_vma | |
4312 | dtpoff_base (struct bfd_link_info *info) | |
4313 | { | |
4314 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
4315 | if (elf_hash_table (info)->tls_sec == NULL) | |
4316 | return 0; | |
4317 | return elf_hash_table (info)->tls_sec->vma; | |
4318 | } | |
4319 | ||
4320 | /* Return the relocation value for @tpoff relocation | |
4321 | if STT_TLS virtual address is ADDRESS. */ | |
4322 | ||
4323 | static bfd_vma | |
4324 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
4325 | { | |
4326 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
4327 | bfd_vma base; | |
4328 | ||
4329 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
4330 | if (htab->tls_sec == NULL) | |
4331 | return 0; | |
4332 | base = align_power ((bfd_vma) TCB_SIZE, htab->tls_sec->alignment_power); | |
4333 | return address - htab->tls_sec->vma + base; | |
4334 | } | |
4335 | ||
00a97672 RS |
4336 | /* Perform an R_ARM_ABS12 relocation on the field pointed to by DATA. |
4337 | VALUE is the relocation value. */ | |
4338 | ||
4339 | static bfd_reloc_status_type | |
4340 | elf32_arm_abs12_reloc (bfd *abfd, void *data, bfd_vma value) | |
4341 | { | |
4342 | if (value > 0xfff) | |
4343 | return bfd_reloc_overflow; | |
4344 | ||
4345 | value |= bfd_get_32 (abfd, data) & 0xfffff000; | |
4346 | bfd_put_32 (abfd, value, data); | |
4347 | return bfd_reloc_ok; | |
4348 | } | |
4349 | ||
4962c51a MS |
4350 | /* For a given value of n, calculate the value of G_n as required to |
4351 | deal with group relocations. We return it in the form of an | |
4352 | encoded constant-and-rotation, together with the final residual. If n is | |
4353 | specified as less than zero, then final_residual is filled with the | |
4354 | input value and no further action is performed. */ | |
4355 | ||
4356 | static bfd_vma | |
4357 | calculate_group_reloc_mask (bfd_vma value, int n, bfd_vma *final_residual) | |
4358 | { | |
4359 | int current_n; | |
4360 | bfd_vma g_n; | |
4361 | bfd_vma encoded_g_n = 0; | |
4362 | bfd_vma residual = value; /* Also known as Y_n. */ | |
4363 | ||
4364 | for (current_n = 0; current_n <= n; current_n++) | |
4365 | { | |
4366 | int shift; | |
4367 | ||
4368 | /* Calculate which part of the value to mask. */ | |
4369 | if (residual == 0) | |
4370 | shift = 0; | |
4371 | else | |
4372 | { | |
4373 | int msb; | |
4374 | ||
4375 | /* Determine the most significant bit in the residual and | |
4376 | align the resulting value to a 2-bit boundary. */ | |
4377 | for (msb = 30; msb >= 0; msb -= 2) | |
4378 | if (residual & (3 << msb)) | |
4379 | break; | |
4380 | ||
4381 | /* The desired shift is now (msb - 6), or zero, whichever | |
4382 | is the greater. */ | |
4383 | shift = msb - 6; | |
4384 | if (shift < 0) | |
4385 | shift = 0; | |
4386 | } | |
4387 | ||
4388 | /* Calculate g_n in 32-bit as well as encoded constant+rotation form. */ | |
4389 | g_n = residual & (0xff << shift); | |
4390 | encoded_g_n = (g_n >> shift) | |
4391 | | ((g_n <= 0xff ? 0 : (32 - shift) / 2) << 8); | |
4392 | ||
4393 | /* Calculate the residual for the next time around. */ | |
4394 | residual &= ~g_n; | |
4395 | } | |
4396 | ||
4397 | *final_residual = residual; | |
4398 | ||
4399 | return encoded_g_n; | |
4400 | } | |
4401 | ||
4402 | /* Given an ARM instruction, determine whether it is an ADD or a SUB. | |
4403 | Returns 1 if it is an ADD, -1 if it is a SUB, and 0 otherwise. */ | |
4404 | static int | |
4405 | identify_add_or_sub(bfd_vma insn) | |
4406 | { | |
4407 | int opcode = insn & 0x1e00000; | |
4408 | ||
4409 | if (opcode == 1 << 23) /* ADD */ | |
4410 | return 1; | |
4411 | ||
4412 | if (opcode == 1 << 22) /* SUB */ | |
4413 | return -1; | |
4414 | ||
4415 | return 0; | |
4416 | } | |
4417 | ||
e95de063 MS |
4418 | /* Determine if we're dealing with a Thumb-2 object. */ |
4419 | ||
4420 | static int using_thumb2 (struct elf32_arm_link_hash_table *globals) | |
4421 | { | |
4422 | int arch = elf32_arm_get_eabi_attr_int (globals->obfd, Tag_CPU_arch); | |
4423 | return arch == TAG_CPU_ARCH_V6T2 || arch >= TAG_CPU_ARCH_V7; | |
4424 | } | |
4425 | ||
252b5132 | 4426 | /* Perform a relocation as part of a final link. */ |
9b485d32 | 4427 | |
252b5132 | 4428 | static bfd_reloc_status_type |
57e8b36a NC |
4429 | elf32_arm_final_link_relocate (reloc_howto_type * howto, |
4430 | bfd * input_bfd, | |
4431 | bfd * output_bfd, | |
4432 | asection * input_section, | |
4433 | bfd_byte * contents, | |
4434 | Elf_Internal_Rela * rel, | |
4435 | bfd_vma value, | |
4436 | struct bfd_link_info * info, | |
4437 | asection * sym_sec, | |
4438 | const char * sym_name, | |
4439 | int sym_flags, | |
0945cdfd | 4440 | struct elf_link_hash_entry * h, |
f2a9dd69 DJ |
4441 | bfd_boolean * unresolved_reloc_p, |
4442 | char **error_message) | |
252b5132 RH |
4443 | { |
4444 | unsigned long r_type = howto->type; | |
4445 | unsigned long r_symndx; | |
4446 | bfd_byte * hit_data = contents + rel->r_offset; | |
4447 | bfd * dynobj = NULL; | |
4448 | Elf_Internal_Shdr * symtab_hdr; | |
4449 | struct elf_link_hash_entry ** sym_hashes; | |
4450 | bfd_vma * local_got_offsets; | |
4451 | asection * sgot = NULL; | |
4452 | asection * splt = NULL; | |
4453 | asection * sreloc = NULL; | |
252b5132 | 4454 | bfd_vma addend; |
ba96a88f NC |
4455 | bfd_signed_vma signed_addend; |
4456 | struct elf32_arm_link_hash_table * globals; | |
f21f3fe0 | 4457 | |
9c504268 PB |
4458 | globals = elf32_arm_hash_table (info); |
4459 | ||
9c504268 PB |
4460 | /* Some relocation type map to different relocations depending on the |
4461 | target. We pick the right one here. */ | |
eb043451 PB |
4462 | r_type = arm_real_reloc_type (globals, r_type); |
4463 | if (r_type != howto->type) | |
4464 | howto = elf32_arm_howto_from_type (r_type); | |
9c504268 | 4465 | |
cac15327 NC |
4466 | /* If the start address has been set, then set the EF_ARM_HASENTRY |
4467 | flag. Setting this more than once is redundant, but the cost is | |
4468 | not too high, and it keeps the code simple. | |
99e4ae17 | 4469 | |
cac15327 NC |
4470 | The test is done here, rather than somewhere else, because the |
4471 | start address is only set just before the final link commences. | |
4472 | ||
4473 | Note - if the user deliberately sets a start address of 0, the | |
4474 | flag will not be set. */ | |
4475 | if (bfd_get_start_address (output_bfd) != 0) | |
4476 | elf_elfheader (output_bfd)->e_flags |= EF_ARM_HASENTRY; | |
99e4ae17 | 4477 | |
252b5132 RH |
4478 | dynobj = elf_hash_table (info)->dynobj; |
4479 | if (dynobj) | |
4480 | { | |
4481 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
4482 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
4483 | } | |
4484 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; | |
4485 | sym_hashes = elf_sym_hashes (input_bfd); | |
4486 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
4487 | r_symndx = ELF32_R_SYM (rel->r_info); | |
4488 | ||
4e7fd91e | 4489 | if (globals->use_rel) |
ba96a88f | 4490 | { |
4e7fd91e PB |
4491 | addend = bfd_get_32 (input_bfd, hit_data) & howto->src_mask; |
4492 | ||
4493 | if (addend & ((howto->src_mask + 1) >> 1)) | |
4494 | { | |
4495 | signed_addend = -1; | |
4496 | signed_addend &= ~ howto->src_mask; | |
4497 | signed_addend |= addend; | |
4498 | } | |
4499 | else | |
4500 | signed_addend = addend; | |
ba96a88f NC |
4501 | } |
4502 | else | |
4e7fd91e | 4503 | addend = signed_addend = rel->r_addend; |
f21f3fe0 | 4504 | |
252b5132 RH |
4505 | switch (r_type) |
4506 | { | |
4507 | case R_ARM_NONE: | |
28a094c2 DJ |
4508 | /* We don't need to find a value for this symbol. It's just a |
4509 | marker. */ | |
4510 | *unresolved_reloc_p = FALSE; | |
252b5132 RH |
4511 | return bfd_reloc_ok; |
4512 | ||
00a97672 RS |
4513 | case R_ARM_ABS12: |
4514 | if (!globals->vxworks_p) | |
4515 | return elf32_arm_abs12_reloc (input_bfd, hit_data, value + addend); | |
4516 | ||
252b5132 RH |
4517 | case R_ARM_PC24: |
4518 | case R_ARM_ABS32: | |
bb224fc3 | 4519 | case R_ARM_ABS32_NOI: |
252b5132 | 4520 | case R_ARM_REL32: |
bb224fc3 | 4521 | case R_ARM_REL32_NOI: |
5b5bb741 PB |
4522 | case R_ARM_CALL: |
4523 | case R_ARM_JUMP24: | |
dfc5f959 | 4524 | case R_ARM_XPC25: |
eb043451 | 4525 | case R_ARM_PREL31: |
7359ea65 | 4526 | case R_ARM_PLT32: |
7359ea65 DJ |
4527 | /* Handle relocations which should use the PLT entry. ABS32/REL32 |
4528 | will use the symbol's value, which may point to a PLT entry, but we | |
4529 | don't need to handle that here. If we created a PLT entry, all | |
4530 | branches in this object should go to it. */ | |
bb224fc3 MS |
4531 | if ((r_type != R_ARM_ABS32 && r_type != R_ARM_REL32 |
4532 | && r_type != R_ARM_ABS32_NOI && r_type != R_ARM_REL32_NOI) | |
7359ea65 | 4533 | && h != NULL |
c84cd8ee | 4534 | && splt != NULL |
7359ea65 DJ |
4535 | && h->plt.offset != (bfd_vma) -1) |
4536 | { | |
c84cd8ee DJ |
4537 | /* If we've created a .plt section, and assigned a PLT entry to |
4538 | this function, it should not be known to bind locally. If | |
4539 | it were, we would have cleared the PLT entry. */ | |
7359ea65 DJ |
4540 | BFD_ASSERT (!SYMBOL_CALLS_LOCAL (info, h)); |
4541 | ||
4542 | value = (splt->output_section->vma | |
4543 | + splt->output_offset | |
4544 | + h->plt.offset); | |
0945cdfd | 4545 | *unresolved_reloc_p = FALSE; |
7359ea65 DJ |
4546 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
4547 | contents, rel->r_offset, value, | |
00a97672 | 4548 | rel->r_addend); |
7359ea65 DJ |
4549 | } |
4550 | ||
67687978 PB |
4551 | /* When generating a shared object or relocatable executable, these |
4552 | relocations are copied into the output file to be resolved at | |
4553 | run time. */ | |
4554 | if ((info->shared || globals->root.is_relocatable_executable) | |
7359ea65 | 4555 | && (input_section->flags & SEC_ALLOC) |
bb224fc3 | 4556 | && ((r_type != R_ARM_REL32 && r_type != R_ARM_REL32_NOI) |
ee06dc07 | 4557 | || !SYMBOL_CALLS_LOCAL (info, h)) |
7359ea65 DJ |
4558 | && (h == NULL |
4559 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
4560 | || h->root.type != bfd_link_hash_undefweak) | |
4561 | && r_type != R_ARM_PC24 | |
5b5bb741 PB |
4562 | && r_type != R_ARM_CALL |
4563 | && r_type != R_ARM_JUMP24 | |
ee06dc07 | 4564 | && r_type != R_ARM_PREL31 |
7359ea65 | 4565 | && r_type != R_ARM_PLT32) |
252b5132 | 4566 | { |
947216bf AM |
4567 | Elf_Internal_Rela outrel; |
4568 | bfd_byte *loc; | |
b34976b6 | 4569 | bfd_boolean skip, relocate; |
f21f3fe0 | 4570 | |
0945cdfd DJ |
4571 | *unresolved_reloc_p = FALSE; |
4572 | ||
252b5132 RH |
4573 | if (sreloc == NULL) |
4574 | { | |
4575 | const char * name; | |
f21f3fe0 | 4576 | |
252b5132 RH |
4577 | name = (bfd_elf_string_from_elf_section |
4578 | (input_bfd, | |
4579 | elf_elfheader (input_bfd)->e_shstrndx, | |
4580 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
4581 | if (name == NULL) | |
4582 | return bfd_reloc_notsupported; | |
f21f3fe0 | 4583 | |
00a97672 | 4584 | BFD_ASSERT (reloc_section_p (globals, name, input_section)); |
f21f3fe0 | 4585 | |
252b5132 RH |
4586 | sreloc = bfd_get_section_by_name (dynobj, name); |
4587 | BFD_ASSERT (sreloc != NULL); | |
4588 | } | |
f21f3fe0 | 4589 | |
b34976b6 AM |
4590 | skip = FALSE; |
4591 | relocate = FALSE; | |
f21f3fe0 | 4592 | |
00a97672 | 4593 | outrel.r_addend = addend; |
c629eae0 JJ |
4594 | outrel.r_offset = |
4595 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
4596 | rel->r_offset); | |
4597 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 4598 | skip = TRUE; |
0bb2d96a | 4599 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 4600 | skip = TRUE, relocate = TRUE; |
252b5132 RH |
4601 | outrel.r_offset += (input_section->output_section->vma |
4602 | + input_section->output_offset); | |
f21f3fe0 | 4603 | |
252b5132 | 4604 | if (skip) |
0bb2d96a | 4605 | memset (&outrel, 0, sizeof outrel); |
5e681ec4 PB |
4606 | else if (h != NULL |
4607 | && h->dynindx != -1 | |
7359ea65 | 4608 | && (!info->shared |
5e681ec4 | 4609 | || !info->symbolic |
f5385ebf | 4610 | || !h->def_regular)) |
5e681ec4 | 4611 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
252b5132 RH |
4612 | else |
4613 | { | |
a16385dc MM |
4614 | int symbol; |
4615 | ||
5e681ec4 | 4616 | /* This symbol is local, or marked to become local. */ |
b7693d02 DJ |
4617 | if (sym_flags == STT_ARM_TFUNC) |
4618 | value |= 1; | |
a16385dc | 4619 | if (globals->symbian_p) |
6366ff1e | 4620 | { |
74541ad4 AM |
4621 | asection *osec; |
4622 | ||
6366ff1e MM |
4623 | /* On Symbian OS, the data segment and text segement |
4624 | can be relocated independently. Therefore, we | |
4625 | must indicate the segment to which this | |
4626 | relocation is relative. The BPABI allows us to | |
4627 | use any symbol in the right segment; we just use | |
4628 | the section symbol as it is convenient. (We | |
4629 | cannot use the symbol given by "h" directly as it | |
74541ad4 AM |
4630 | will not appear in the dynamic symbol table.) |
4631 | ||
4632 | Note that the dynamic linker ignores the section | |
4633 | symbol value, so we don't subtract osec->vma | |
4634 | from the emitted reloc addend. */ | |
10dbd1f3 | 4635 | if (sym_sec) |
74541ad4 | 4636 | osec = sym_sec->output_section; |
10dbd1f3 | 4637 | else |
74541ad4 AM |
4638 | osec = input_section->output_section; |
4639 | symbol = elf_section_data (osec)->dynindx; | |
4640 | if (symbol == 0) | |
4641 | { | |
4642 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
4643 | ||
4644 | if ((osec->flags & SEC_READONLY) == 0 | |
4645 | && htab->data_index_section != NULL) | |
4646 | osec = htab->data_index_section; | |
4647 | else | |
4648 | osec = htab->text_index_section; | |
4649 | symbol = elf_section_data (osec)->dynindx; | |
4650 | } | |
6366ff1e MM |
4651 | BFD_ASSERT (symbol != 0); |
4652 | } | |
a16385dc MM |
4653 | else |
4654 | /* On SVR4-ish systems, the dynamic loader cannot | |
4655 | relocate the text and data segments independently, | |
4656 | so the symbol does not matter. */ | |
4657 | symbol = 0; | |
4658 | outrel.r_info = ELF32_R_INFO (symbol, R_ARM_RELATIVE); | |
00a97672 RS |
4659 | if (globals->use_rel) |
4660 | relocate = TRUE; | |
4661 | else | |
4662 | outrel.r_addend += value; | |
252b5132 | 4663 | } |
f21f3fe0 | 4664 | |
947216bf | 4665 | loc = sreloc->contents; |
00a97672 RS |
4666 | loc += sreloc->reloc_count++ * RELOC_SIZE (globals); |
4667 | SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc); | |
9a5aca8c | 4668 | |
f21f3fe0 | 4669 | /* If this reloc is against an external symbol, we do not want to |
252b5132 | 4670 | fiddle with the addend. Otherwise, we need to include the symbol |
9b485d32 | 4671 | value so that it becomes an addend for the dynamic reloc. */ |
252b5132 RH |
4672 | if (! relocate) |
4673 | return bfd_reloc_ok; | |
9a5aca8c | 4674 | |
f21f3fe0 | 4675 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
252b5132 RH |
4676 | contents, rel->r_offset, value, |
4677 | (bfd_vma) 0); | |
4678 | } | |
4679 | else switch (r_type) | |
4680 | { | |
00a97672 RS |
4681 | case R_ARM_ABS12: |
4682 | return elf32_arm_abs12_reloc (input_bfd, hit_data, value + addend); | |
4683 | ||
dfc5f959 | 4684 | case R_ARM_XPC25: /* Arm BLX instruction. */ |
5b5bb741 PB |
4685 | case R_ARM_CALL: |
4686 | case R_ARM_JUMP24: | |
dfc5f959 | 4687 | case R_ARM_PC24: /* Arm B/BL instruction */ |
7359ea65 | 4688 | case R_ARM_PLT32: |
dfc5f959 | 4689 | if (r_type == R_ARM_XPC25) |
252b5132 | 4690 | { |
dfc5f959 NC |
4691 | /* Check for Arm calling Arm function. */ |
4692 | /* FIXME: Should we translate the instruction into a BL | |
4693 | instruction instead ? */ | |
4694 | if (sym_flags != STT_ARM_TFUNC) | |
d003868e AM |
4695 | (*_bfd_error_handler) |
4696 | (_("\%B: Warning: Arm BLX instruction targets Arm function '%s'."), | |
4697 | input_bfd, | |
4698 | h ? h->root.root.string : "(local)"); | |
dfc5f959 | 4699 | } |
39b41c9c | 4700 | else if (r_type != R_ARM_CALL || !globals->use_blx) |
dfc5f959 NC |
4701 | { |
4702 | /* Check for Arm calling Thumb function. */ | |
4703 | if (sym_flags == STT_ARM_TFUNC) | |
4704 | { | |
f2a9dd69 DJ |
4705 | if (elf32_arm_to_thumb_stub (info, sym_name, input_bfd, |
4706 | output_bfd, input_section, | |
4707 | hit_data, sym_sec, rel->r_offset, | |
4708 | signed_addend, value, | |
4709 | error_message)) | |
4710 | return bfd_reloc_ok; | |
4711 | else | |
4712 | return bfd_reloc_dangerous; | |
dfc5f959 | 4713 | } |
252b5132 | 4714 | } |
ba96a88f | 4715 | |
dea514f5 PB |
4716 | /* The ARM ELF ABI says that this reloc is computed as: S - P + A |
4717 | where: | |
4718 | S is the address of the symbol in the relocation. | |
4719 | P is address of the instruction being relocated. | |
4720 | A is the addend (extracted from the instruction) in bytes. | |
4721 | ||
4722 | S is held in 'value'. | |
4723 | P is the base address of the section containing the | |
4724 | instruction plus the offset of the reloc into that | |
4725 | section, ie: | |
4726 | (input_section->output_section->vma + | |
4727 | input_section->output_offset + | |
4728 | rel->r_offset). | |
4729 | A is the addend, converted into bytes, ie: | |
4730 | (signed_addend * 4) | |
4731 | ||
4732 | Note: None of these operations have knowledge of the pipeline | |
4733 | size of the processor, thus it is up to the assembler to | |
4734 | encode this information into the addend. */ | |
4735 | value -= (input_section->output_section->vma | |
4736 | + input_section->output_offset); | |
4737 | value -= rel->r_offset; | |
4e7fd91e PB |
4738 | if (globals->use_rel) |
4739 | value += (signed_addend << howto->size); | |
4740 | else | |
4741 | /* RELA addends do not have to be adjusted by howto->size. */ | |
4742 | value += signed_addend; | |
23080146 | 4743 | |
dcb5e6e6 NC |
4744 | signed_addend = value; |
4745 | signed_addend >>= howto->rightshift; | |
9a5aca8c | 4746 | |
59f2c4e7 NC |
4747 | /* It is not an error for an undefined weak reference to be |
4748 | out of range. Any program that branches to such a symbol | |
9a5aca8c AM |
4749 | is going to crash anyway, so there is no point worrying |
4750 | about getting the destination exactly right. */ | |
59f2c4e7 NC |
4751 | if (! h || h->root.type != bfd_link_hash_undefweak) |
4752 | { | |
9b485d32 | 4753 | /* Perform a signed range check. */ |
dcb5e6e6 | 4754 | if ( signed_addend > ((bfd_signed_vma) (howto->dst_mask >> 1)) |
59f2c4e7 NC |
4755 | || signed_addend < - ((bfd_signed_vma) ((howto->dst_mask + 1) >> 1))) |
4756 | return bfd_reloc_overflow; | |
4757 | } | |
9a5aca8c | 4758 | |
39b41c9c PB |
4759 | addend = (value & 2); |
4760 | ||
4761 | value = (signed_addend & howto->dst_mask) | |
4762 | | (bfd_get_32 (input_bfd, hit_data) & (~ howto->dst_mask)); | |
4763 | ||
4764 | /* Set the H bit in the BLX instruction. */ | |
4765 | if (sym_flags == STT_ARM_TFUNC) | |
4766 | { | |
4767 | if (addend) | |
4768 | value |= (1 << 24); | |
4769 | else | |
4770 | value &= ~(bfd_vma)(1 << 24); | |
4771 | } | |
4772 | if (r_type == R_ARM_CALL) | |
4773 | { | |
4774 | /* Select the correct instruction (BL or BLX). */ | |
4775 | if (sym_flags == STT_ARM_TFUNC) | |
4776 | value |= (1 << 28); | |
4777 | else | |
4778 | { | |
4779 | value &= ~(bfd_vma)(1 << 28); | |
4780 | value |= (1 << 24); | |
4781 | } | |
4782 | } | |
252b5132 | 4783 | break; |
f21f3fe0 | 4784 | |
252b5132 RH |
4785 | case R_ARM_ABS32: |
4786 | value += addend; | |
4787 | if (sym_flags == STT_ARM_TFUNC) | |
4788 | value |= 1; | |
4789 | break; | |
f21f3fe0 | 4790 | |
bb224fc3 MS |
4791 | case R_ARM_ABS32_NOI: |
4792 | value += addend; | |
4793 | break; | |
4794 | ||
252b5132 | 4795 | case R_ARM_REL32: |
a8bc6c78 PB |
4796 | value += addend; |
4797 | if (sym_flags == STT_ARM_TFUNC) | |
4798 | value |= 1; | |
252b5132 | 4799 | value -= (input_section->output_section->vma |
62efb346 | 4800 | + input_section->output_offset + rel->r_offset); |
252b5132 | 4801 | break; |
eb043451 | 4802 | |
bb224fc3 MS |
4803 | case R_ARM_REL32_NOI: |
4804 | value += addend; | |
4805 | value -= (input_section->output_section->vma | |
4806 | + input_section->output_offset + rel->r_offset); | |
4807 | break; | |
4808 | ||
eb043451 PB |
4809 | case R_ARM_PREL31: |
4810 | value -= (input_section->output_section->vma | |
4811 | + input_section->output_offset + rel->r_offset); | |
4812 | value += signed_addend; | |
4813 | if (! h || h->root.type != bfd_link_hash_undefweak) | |
4814 | { | |
4815 | /* Check for overflow */ | |
4816 | if ((value ^ (value >> 1)) & (1 << 30)) | |
4817 | return bfd_reloc_overflow; | |
4818 | } | |
4819 | value &= 0x7fffffff; | |
4820 | value |= (bfd_get_32 (input_bfd, hit_data) & 0x80000000); | |
4821 | if (sym_flags == STT_ARM_TFUNC) | |
4822 | value |= 1; | |
4823 | break; | |
252b5132 | 4824 | } |
f21f3fe0 | 4825 | |
252b5132 RH |
4826 | bfd_put_32 (input_bfd, value, hit_data); |
4827 | return bfd_reloc_ok; | |
4828 | ||
4829 | case R_ARM_ABS8: | |
4830 | value += addend; | |
4831 | if ((long) value > 0x7f || (long) value < -0x80) | |
4832 | return bfd_reloc_overflow; | |
4833 | ||
4834 | bfd_put_8 (input_bfd, value, hit_data); | |
4835 | return bfd_reloc_ok; | |
4836 | ||
4837 | case R_ARM_ABS16: | |
4838 | value += addend; | |
4839 | ||
4840 | if ((long) value > 0x7fff || (long) value < -0x8000) | |
4841 | return bfd_reloc_overflow; | |
4842 | ||
4843 | bfd_put_16 (input_bfd, value, hit_data); | |
4844 | return bfd_reloc_ok; | |
4845 | ||
252b5132 | 4846 | case R_ARM_THM_ABS5: |
9b485d32 | 4847 | /* Support ldr and str instructions for the thumb. */ |
4e7fd91e PB |
4848 | if (globals->use_rel) |
4849 | { | |
4850 | /* Need to refetch addend. */ | |
4851 | addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask; | |
4852 | /* ??? Need to determine shift amount from operand size. */ | |
4853 | addend >>= howto->rightshift; | |
4854 | } | |
252b5132 RH |
4855 | value += addend; |
4856 | ||
4857 | /* ??? Isn't value unsigned? */ | |
4858 | if ((long) value > 0x1f || (long) value < -0x10) | |
4859 | return bfd_reloc_overflow; | |
4860 | ||
4861 | /* ??? Value needs to be properly shifted into place first. */ | |
4862 | value |= bfd_get_16 (input_bfd, hit_data) & 0xf83f; | |
4863 | bfd_put_16 (input_bfd, value, hit_data); | |
4864 | return bfd_reloc_ok; | |
4865 | ||
2cab6cc3 MS |
4866 | case R_ARM_THM_ALU_PREL_11_0: |
4867 | /* Corresponds to: addw.w reg, pc, #offset (and similarly for subw). */ | |
4868 | { | |
4869 | bfd_vma insn; | |
4870 | bfd_signed_vma relocation; | |
4871 | ||
4872 | insn = (bfd_get_16 (input_bfd, hit_data) << 16) | |
4873 | | bfd_get_16 (input_bfd, hit_data + 2); | |
4874 | ||
4875 | if (globals->use_rel) | |
4876 | { | |
4877 | signed_addend = (insn & 0xff) | ((insn & 0x7000) >> 4) | |
4878 | | ((insn & (1 << 26)) >> 15); | |
4879 | if (insn & 0xf00000) | |
4880 | signed_addend = -signed_addend; | |
4881 | } | |
4882 | ||
4883 | relocation = value + signed_addend; | |
4884 | relocation -= (input_section->output_section->vma | |
4885 | + input_section->output_offset | |
4886 | + rel->r_offset); | |
4887 | ||
4888 | value = abs (relocation); | |
4889 | ||
4890 | if (value >= 0x1000) | |
4891 | return bfd_reloc_overflow; | |
4892 | ||
4893 | insn = (insn & 0xfb0f8f00) | (value & 0xff) | |
4894 | | ((value & 0x700) << 4) | |
4895 | | ((value & 0x800) << 15); | |
4896 | if (relocation < 0) | |
4897 | insn |= 0xa00000; | |
4898 | ||
4899 | bfd_put_16 (input_bfd, insn >> 16, hit_data); | |
4900 | bfd_put_16 (input_bfd, insn & 0xffff, hit_data + 2); | |
4901 | ||
4902 | return bfd_reloc_ok; | |
4903 | } | |
4904 | ||
4905 | case R_ARM_THM_PC12: | |
4906 | /* Corresponds to: ldr.w reg, [pc, #offset]. */ | |
4907 | { | |
4908 | bfd_vma insn; | |
4909 | bfd_signed_vma relocation; | |
4910 | ||
4911 | insn = (bfd_get_16 (input_bfd, hit_data) << 16) | |
4912 | | bfd_get_16 (input_bfd, hit_data + 2); | |
4913 | ||
4914 | if (globals->use_rel) | |
4915 | { | |
4916 | signed_addend = insn & 0xfff; | |
4917 | if (!(insn & (1 << 23))) | |
4918 | signed_addend = -signed_addend; | |
4919 | } | |
4920 | ||
4921 | relocation = value + signed_addend; | |
4922 | relocation -= (input_section->output_section->vma | |
4923 | + input_section->output_offset | |
4924 | + rel->r_offset); | |
4925 | ||
4926 | value = abs (relocation); | |
4927 | ||
4928 | if (value >= 0x1000) | |
4929 | return bfd_reloc_overflow; | |
4930 | ||
4931 | insn = (insn & 0xff7ff000) | value; | |
4932 | if (relocation >= 0) | |
4933 | insn |= (1 << 23); | |
4934 | ||
4935 | bfd_put_16 (input_bfd, insn >> 16, hit_data); | |
4936 | bfd_put_16 (input_bfd, insn & 0xffff, hit_data + 2); | |
4937 | ||
4938 | return bfd_reloc_ok; | |
4939 | } | |
4940 | ||
dfc5f959 | 4941 | case R_ARM_THM_XPC22: |
c19d1205 | 4942 | case R_ARM_THM_CALL: |
dfc5f959 | 4943 | /* Thumb BL (branch long instruction). */ |
252b5132 | 4944 | { |
b34976b6 | 4945 | bfd_vma relocation; |
e95de063 | 4946 | bfd_vma reloc_sign; |
b34976b6 AM |
4947 | bfd_boolean overflow = FALSE; |
4948 | bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data); | |
4949 | bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2); | |
e95de063 MS |
4950 | bfd_signed_vma reloc_signed_max; |
4951 | bfd_signed_vma reloc_signed_min; | |
b34976b6 | 4952 | bfd_vma check; |
252b5132 | 4953 | bfd_signed_vma signed_check; |
e95de063 MS |
4954 | int bitsize; |
4955 | int thumb2 = using_thumb2 (globals); | |
252b5132 | 4956 | |
e95de063 MS |
4957 | /* Fetch the addend. We use the Thumb-2 encoding (backwards compatible |
4958 | with Thumb-1) involving the J1 and J2 bits. */ | |
4e7fd91e PB |
4959 | if (globals->use_rel) |
4960 | { | |
e95de063 MS |
4961 | bfd_vma s = (upper_insn & (1 << 10)) >> 10; |
4962 | bfd_vma upper = upper_insn & 0x3ff; | |
4963 | bfd_vma lower = lower_insn & 0x7ff; | |
4964 | bfd_vma j1 = (lower_insn & (1 << 13)) >> 13; | |
4965 | bfd_vma j2 = (lower_insn & (1 << 11)) >> 11; | |
4966 | bfd_vma i1 = j1 ^ s ? 0 : 1; | |
4967 | bfd_vma i2 = j2 ^ s ? 0 : 1; | |
4968 | ||
4969 | addend = (i1 << 23) | (i2 << 22) | (upper << 12) | (lower << 1); | |
4970 | /* Sign extend. */ | |
4971 | addend = (addend | ((s ? 0 : 1) << 24)) - (1 << 24); | |
4972 | ||
4e7fd91e PB |
4973 | signed_addend = addend; |
4974 | } | |
cb1afa5c | 4975 | |
dfc5f959 NC |
4976 | if (r_type == R_ARM_THM_XPC22) |
4977 | { | |
4978 | /* Check for Thumb to Thumb call. */ | |
4979 | /* FIXME: Should we translate the instruction into a BL | |
4980 | instruction instead ? */ | |
4981 | if (sym_flags == STT_ARM_TFUNC) | |
d003868e AM |
4982 | (*_bfd_error_handler) |
4983 | (_("%B: Warning: Thumb BLX instruction targets thumb function '%s'."), | |
4984 | input_bfd, | |
4985 | h ? h->root.root.string : "(local)"); | |
dfc5f959 NC |
4986 | } |
4987 | else | |
252b5132 | 4988 | { |
dfc5f959 NC |
4989 | /* If it is not a call to Thumb, assume call to Arm. |
4990 | If it is a call relative to a section name, then it is not a | |
b7693d02 DJ |
4991 | function call at all, but rather a long jump. Calls through |
4992 | the PLT do not require stubs. */ | |
4993 | if (sym_flags != STT_ARM_TFUNC && sym_flags != STT_SECTION | |
4994 | && (h == NULL || splt == NULL | |
4995 | || h->plt.offset == (bfd_vma) -1)) | |
dfc5f959 | 4996 | { |
39b41c9c PB |
4997 | if (globals->use_blx) |
4998 | { | |
4999 | /* Convert BL to BLX. */ | |
5000 | lower_insn = (lower_insn & ~0x1000) | 0x0800; | |
5001 | } | |
5002 | else if (elf32_thumb_to_arm_stub | |
dfc5f959 | 5003 | (info, sym_name, input_bfd, output_bfd, input_section, |
f2a9dd69 DJ |
5004 | hit_data, sym_sec, rel->r_offset, signed_addend, value, |
5005 | error_message)) | |
dfc5f959 NC |
5006 | return bfd_reloc_ok; |
5007 | else | |
5008 | return bfd_reloc_dangerous; | |
5009 | } | |
39b41c9c PB |
5010 | else if (sym_flags == STT_ARM_TFUNC && globals->use_blx) |
5011 | { | |
5012 | /* Make sure this is a BL. */ | |
5013 | lower_insn |= 0x1800; | |
5014 | } | |
252b5132 | 5015 | } |
f21f3fe0 | 5016 | |
b7693d02 DJ |
5017 | /* Handle calls via the PLT. */ |
5018 | if (h != NULL && splt != NULL && h->plt.offset != (bfd_vma) -1) | |
5019 | { | |
5020 | value = (splt->output_section->vma | |
5021 | + splt->output_offset | |
5022 | + h->plt.offset); | |
33bfe774 JB |
5023 | if (globals->use_blx) |
5024 | { | |
5025 | /* If the Thumb BLX instruction is available, convert the | |
5026 | BL to a BLX instruction to call the ARM-mode PLT entry. */ | |
39b41c9c | 5027 | lower_insn = (lower_insn & ~0x1000) | 0x0800; |
33bfe774 JB |
5028 | } |
5029 | else | |
5030 | /* Target the Thumb stub before the ARM PLT entry. */ | |
5031 | value -= PLT_THUMB_STUB_SIZE; | |
0945cdfd | 5032 | *unresolved_reloc_p = FALSE; |
b7693d02 DJ |
5033 | } |
5034 | ||
ba96a88f | 5035 | relocation = value + signed_addend; |
f21f3fe0 | 5036 | |
252b5132 | 5037 | relocation -= (input_section->output_section->vma |
ba96a88f NC |
5038 | + input_section->output_offset |
5039 | + rel->r_offset); | |
9a5aca8c | 5040 | |
252b5132 RH |
5041 | check = relocation >> howto->rightshift; |
5042 | ||
5043 | /* If this is a signed value, the rightshift just dropped | |
5044 | leading 1 bits (assuming twos complement). */ | |
5045 | if ((bfd_signed_vma) relocation >= 0) | |
5046 | signed_check = check; | |
5047 | else | |
5048 | signed_check = check | ~((bfd_vma) -1 >> howto->rightshift); | |
5049 | ||
e95de063 MS |
5050 | /* Calculate the permissable maximum and minimum values for |
5051 | this relocation according to whether we're relocating for | |
5052 | Thumb-2 or not. */ | |
5053 | bitsize = howto->bitsize; | |
5054 | if (!thumb2) | |
5055 | bitsize -= 2; | |
5056 | reloc_signed_max = ((1 << (bitsize - 1)) - 1) >> howto->rightshift; | |
5057 | reloc_signed_min = ~reloc_signed_max; | |
5058 | ||
252b5132 | 5059 | /* Assumes two's complement. */ |
ba96a88f | 5060 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) |
b34976b6 | 5061 | overflow = TRUE; |
252b5132 | 5062 | |
39b41c9c | 5063 | if ((lower_insn & 0x1800) == 0x0800) |
c62e1cc3 NC |
5064 | /* For a BLX instruction, make sure that the relocation is rounded up |
5065 | to a word boundary. This follows the semantics of the instruction | |
5066 | which specifies that bit 1 of the target address will come from bit | |
5067 | 1 of the base address. */ | |
5068 | relocation = (relocation + 2) & ~ 3; | |
cb1afa5c | 5069 | |
e95de063 MS |
5070 | /* Put RELOCATION back into the insn. Assumes two's complement. |
5071 | We use the Thumb-2 encoding, which is safe even if dealing with | |
5072 | a Thumb-1 instruction by virtue of our overflow check above. */ | |
5073 | reloc_sign = (signed_check < 0) ? 1 : 0; | |
5074 | upper_insn = (upper_insn & ~(bfd_vma) 0x7ff) | |
5075 | | ((relocation >> 12) & 0x3ff) | |
5076 | | (reloc_sign << 10); | |
5077 | lower_insn = (lower_insn & ~(bfd_vma) 0x2fff) | |
5078 | | (((!((relocation >> 23) & 1)) ^ reloc_sign) << 13) | |
5079 | | (((!((relocation >> 22) & 1)) ^ reloc_sign) << 11) | |
5080 | | ((relocation >> 1) & 0x7ff); | |
c62e1cc3 | 5081 | |
252b5132 RH |
5082 | /* Put the relocated value back in the object file: */ |
5083 | bfd_put_16 (input_bfd, upper_insn, hit_data); | |
5084 | bfd_put_16 (input_bfd, lower_insn, hit_data + 2); | |
5085 | ||
5086 | return (overflow ? bfd_reloc_overflow : bfd_reloc_ok); | |
5087 | } | |
5088 | break; | |
5089 | ||
c19d1205 ZW |
5090 | case R_ARM_THM_JUMP24: |
5091 | /* Thumb32 unconditional branch instruction. */ | |
5092 | { | |
5093 | bfd_vma relocation; | |
5094 | bfd_boolean overflow = FALSE; | |
5095 | bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data); | |
5096 | bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2); | |
5097 | bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift; | |
5098 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; | |
5099 | bfd_vma check; | |
5100 | bfd_signed_vma signed_check; | |
5101 | ||
5102 | /* Need to refetch the addend, reconstruct the top three bits, and glue the | |
5103 | two pieces together. */ | |
5104 | if (globals->use_rel) | |
5105 | { | |
5106 | bfd_vma S = (upper_insn & 0x0400) >> 10; | |
5107 | bfd_vma hi = (upper_insn & 0x03ff); | |
5108 | bfd_vma I1 = (lower_insn & 0x2000) >> 13; | |
5109 | bfd_vma I2 = (lower_insn & 0x0800) >> 11; | |
5110 | bfd_vma lo = (lower_insn & 0x07ff); | |
5111 | ||
5112 | I1 = !(I1 ^ S); | |
5113 | I2 = !(I2 ^ S); | |
5114 | S = !S; | |
5115 | ||
5116 | signed_addend = (S << 24) | (I1 << 23) | (I2 << 22) | (hi << 12) | (lo << 1); | |
5117 | signed_addend -= (1 << 24); /* Sign extend. */ | |
5118 | } | |
5119 | ||
5120 | /* ??? Should handle interworking? GCC might someday try to | |
5121 | use this for tail calls. */ | |
5122 | ||
5123 | relocation = value + signed_addend; | |
5124 | relocation -= (input_section->output_section->vma | |
5125 | + input_section->output_offset | |
5126 | + rel->r_offset); | |
5127 | ||
5128 | check = relocation >> howto->rightshift; | |
5129 | ||
5130 | /* If this is a signed value, the rightshift just dropped | |
5131 | leading 1 bits (assuming twos complement). */ | |
5132 | if ((bfd_signed_vma) relocation >= 0) | |
5133 | signed_check = check; | |
5134 | else | |
5135 | signed_check = check | ~((bfd_vma) -1 >> howto->rightshift); | |
5136 | ||
5137 | /* Assumes two's complement. */ | |
5138 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) | |
5139 | overflow = TRUE; | |
5140 | ||
5141 | /* Put RELOCATION back into the insn. */ | |
5142 | { | |
5143 | bfd_vma S = (relocation & 0x01000000) >> 24; | |
5144 | bfd_vma I1 = (relocation & 0x00800000) >> 23; | |
5145 | bfd_vma I2 = (relocation & 0x00400000) >> 22; | |
5146 | bfd_vma hi = (relocation & 0x003ff000) >> 12; | |
5147 | bfd_vma lo = (relocation & 0x00000ffe) >> 1; | |
5148 | ||
5149 | I1 = !(I1 ^ S); | |
5150 | I2 = !(I2 ^ S); | |
5151 | ||
5152 | upper_insn = (upper_insn & (bfd_vma) 0xf800) | (S << 10) | hi; | |
5153 | lower_insn = (lower_insn & (bfd_vma) 0xd000) | (I1 << 13) | (I2 << 11) | lo; | |
5154 | } | |
5155 | ||
5156 | /* Put the relocated value back in the object file: */ | |
5157 | bfd_put_16 (input_bfd, upper_insn, hit_data); | |
5158 | bfd_put_16 (input_bfd, lower_insn, hit_data + 2); | |
5159 | ||
5160 | return (overflow ? bfd_reloc_overflow : bfd_reloc_ok); | |
5161 | } | |
5162 | ||
5163 | case R_ARM_THM_JUMP19: | |
5164 | /* Thumb32 conditional branch instruction. */ | |
5165 | { | |
5166 | bfd_vma relocation; | |
5167 | bfd_boolean overflow = FALSE; | |
5168 | bfd_vma upper_insn = bfd_get_16 (input_bfd, hit_data); | |
5169 | bfd_vma lower_insn = bfd_get_16 (input_bfd, hit_data + 2); | |
5170 | bfd_signed_vma reloc_signed_max = ((1 << (howto->bitsize - 1)) - 1) >> howto->rightshift; | |
5171 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; | |
5172 | bfd_vma check; | |
5173 | bfd_signed_vma signed_check; | |
5174 | ||
5175 | /* Need to refetch the addend, reconstruct the top three bits, | |
5176 | and squish the two 11 bit pieces together. */ | |
5177 | if (globals->use_rel) | |
5178 | { | |
5179 | bfd_vma S = (upper_insn & 0x0400) >> 10; | |
5180 | bfd_vma upper = (upper_insn & 0x001f); | |
5181 | bfd_vma J1 = (lower_insn & 0x2000) >> 13; | |
5182 | bfd_vma J2 = (lower_insn & 0x0800) >> 11; | |
5183 | bfd_vma lower = (lower_insn & 0x07ff); | |
5184 | ||
5185 | upper |= J2 << 6; | |
5186 | upper |= J1 << 7; | |
5187 | upper |= ~S << 8; | |
5188 | upper -= 0x0100; /* Sign extend. */ | |
5189 | ||
5190 | addend = (upper << 12) | (lower << 1); | |
5191 | signed_addend = addend; | |
5192 | } | |
5193 | ||
5194 | /* ??? Should handle interworking? GCC might someday try to | |
5195 | use this for tail calls. */ | |
5196 | ||
5197 | relocation = value + signed_addend; | |
5198 | relocation -= (input_section->output_section->vma | |
5199 | + input_section->output_offset | |
5200 | + rel->r_offset); | |
5201 | ||
5202 | check = relocation >> howto->rightshift; | |
5203 | ||
5204 | /* If this is a signed value, the rightshift just dropped | |
5205 | leading 1 bits (assuming twos complement). */ | |
5206 | if ((bfd_signed_vma) relocation >= 0) | |
5207 | signed_check = check; | |
5208 | else | |
5209 | signed_check = check | ~((bfd_vma) -1 >> howto->rightshift); | |
5210 | ||
5211 | /* Assumes two's complement. */ | |
5212 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) | |
5213 | overflow = TRUE; | |
5214 | ||
5215 | /* Put RELOCATION back into the insn. */ | |
5216 | { | |
5217 | bfd_vma S = (relocation & 0x00100000) >> 20; | |
5218 | bfd_vma J2 = (relocation & 0x00080000) >> 19; | |
5219 | bfd_vma J1 = (relocation & 0x00040000) >> 18; | |
5220 | bfd_vma hi = (relocation & 0x0003f000) >> 12; | |
5221 | bfd_vma lo = (relocation & 0x00000ffe) >> 1; | |
5222 | ||
5223 | upper_insn = (upper_insn & 0xfb30) | (S << 10) | hi; | |
5224 | lower_insn = (lower_insn & 0xd000) | (J1 << 13) | (J2 << 11) | lo; | |
5225 | } | |
5226 | ||
5227 | /* Put the relocated value back in the object file: */ | |
5228 | bfd_put_16 (input_bfd, upper_insn, hit_data); | |
5229 | bfd_put_16 (input_bfd, lower_insn, hit_data + 2); | |
5230 | ||
5231 | return (overflow ? bfd_reloc_overflow : bfd_reloc_ok); | |
5232 | } | |
5233 | ||
5234 | case R_ARM_THM_JUMP11: | |
5235 | case R_ARM_THM_JUMP8: | |
5236 | case R_ARM_THM_JUMP6: | |
51c5503b NC |
5237 | /* Thumb B (branch) instruction). */ |
5238 | { | |
6cf9e9fe | 5239 | bfd_signed_vma relocation; |
51c5503b NC |
5240 | bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1; |
5241 | bfd_signed_vma reloc_signed_min = ~ reloc_signed_max; | |
51c5503b NC |
5242 | bfd_signed_vma signed_check; |
5243 | ||
c19d1205 ZW |
5244 | /* CZB cannot jump backward. */ |
5245 | if (r_type == R_ARM_THM_JUMP6) | |
5246 | reloc_signed_min = 0; | |
5247 | ||
4e7fd91e | 5248 | if (globals->use_rel) |
6cf9e9fe | 5249 | { |
4e7fd91e PB |
5250 | /* Need to refetch addend. */ |
5251 | addend = bfd_get_16 (input_bfd, hit_data) & howto->src_mask; | |
5252 | if (addend & ((howto->src_mask + 1) >> 1)) | |
5253 | { | |
5254 | signed_addend = -1; | |
5255 | signed_addend &= ~ howto->src_mask; | |
5256 | signed_addend |= addend; | |
5257 | } | |
5258 | else | |
5259 | signed_addend = addend; | |
5260 | /* The value in the insn has been right shifted. We need to | |
5261 | undo this, so that we can perform the address calculation | |
5262 | in terms of bytes. */ | |
5263 | signed_addend <<= howto->rightshift; | |
6cf9e9fe | 5264 | } |
6cf9e9fe | 5265 | relocation = value + signed_addend; |
51c5503b NC |
5266 | |
5267 | relocation -= (input_section->output_section->vma | |
5268 | + input_section->output_offset | |
5269 | + rel->r_offset); | |
5270 | ||
6cf9e9fe NC |
5271 | relocation >>= howto->rightshift; |
5272 | signed_check = relocation; | |
c19d1205 ZW |
5273 | |
5274 | if (r_type == R_ARM_THM_JUMP6) | |
5275 | relocation = ((relocation & 0x0020) << 4) | ((relocation & 0x001f) << 3); | |
5276 | else | |
5277 | relocation &= howto->dst_mask; | |
51c5503b | 5278 | relocation |= (bfd_get_16 (input_bfd, hit_data) & (~ howto->dst_mask)); |
cedb70c5 | 5279 | |
51c5503b NC |
5280 | bfd_put_16 (input_bfd, relocation, hit_data); |
5281 | ||
5282 | /* Assumes two's complement. */ | |
5283 | if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) | |
5284 | return bfd_reloc_overflow; | |
5285 | ||
5286 | return bfd_reloc_ok; | |
5287 | } | |
cedb70c5 | 5288 | |
8375c36b PB |
5289 | case R_ARM_ALU_PCREL7_0: |
5290 | case R_ARM_ALU_PCREL15_8: | |
5291 | case R_ARM_ALU_PCREL23_15: | |
5292 | { | |
5293 | bfd_vma insn; | |
5294 | bfd_vma relocation; | |
5295 | ||
5296 | insn = bfd_get_32 (input_bfd, hit_data); | |
4e7fd91e PB |
5297 | if (globals->use_rel) |
5298 | { | |
5299 | /* Extract the addend. */ | |
5300 | addend = (insn & 0xff) << ((insn & 0xf00) >> 7); | |
5301 | signed_addend = addend; | |
5302 | } | |
8375c36b PB |
5303 | relocation = value + signed_addend; |
5304 | ||
5305 | relocation -= (input_section->output_section->vma | |
5306 | + input_section->output_offset | |
5307 | + rel->r_offset); | |
5308 | insn = (insn & ~0xfff) | |
5309 | | ((howto->bitpos << 7) & 0xf00) | |
5310 | | ((relocation >> howto->bitpos) & 0xff); | |
5311 | bfd_put_32 (input_bfd, value, hit_data); | |
5312 | } | |
5313 | return bfd_reloc_ok; | |
5314 | ||
252b5132 RH |
5315 | case R_ARM_GNU_VTINHERIT: |
5316 | case R_ARM_GNU_VTENTRY: | |
5317 | return bfd_reloc_ok; | |
5318 | ||
c19d1205 | 5319 | case R_ARM_GOTOFF32: |
252b5132 RH |
5320 | /* Relocation is relative to the start of the |
5321 | global offset table. */ | |
5322 | ||
5323 | BFD_ASSERT (sgot != NULL); | |
5324 | if (sgot == NULL) | |
5325 | return bfd_reloc_notsupported; | |
9a5aca8c | 5326 | |
cedb70c5 | 5327 | /* If we are addressing a Thumb function, we need to adjust the |
ee29b9fb RE |
5328 | address by one, so that attempts to call the function pointer will |
5329 | correctly interpret it as Thumb code. */ | |
5330 | if (sym_flags == STT_ARM_TFUNC) | |
5331 | value += 1; | |
5332 | ||
252b5132 RH |
5333 | /* Note that sgot->output_offset is not involved in this |
5334 | calculation. We always want the start of .got. If we | |
5335 | define _GLOBAL_OFFSET_TABLE in a different way, as is | |
5336 | permitted by the ABI, we might have to change this | |
9b485d32 | 5337 | calculation. */ |
252b5132 | 5338 | value -= sgot->output_section->vma; |
f21f3fe0 | 5339 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 | 5340 | contents, rel->r_offset, value, |
00a97672 | 5341 | rel->r_addend); |
252b5132 RH |
5342 | |
5343 | case R_ARM_GOTPC: | |
a7c10850 | 5344 | /* Use global offset table as symbol value. */ |
252b5132 | 5345 | BFD_ASSERT (sgot != NULL); |
f21f3fe0 | 5346 | |
252b5132 RH |
5347 | if (sgot == NULL) |
5348 | return bfd_reloc_notsupported; | |
5349 | ||
0945cdfd | 5350 | *unresolved_reloc_p = FALSE; |
252b5132 | 5351 | value = sgot->output_section->vma; |
f21f3fe0 | 5352 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 | 5353 | contents, rel->r_offset, value, |
00a97672 | 5354 | rel->r_addend); |
f21f3fe0 | 5355 | |
252b5132 | 5356 | case R_ARM_GOT32: |
eb043451 | 5357 | case R_ARM_GOT_PREL: |
252b5132 | 5358 | /* Relocation is to the entry for this symbol in the |
9b485d32 | 5359 | global offset table. */ |
252b5132 RH |
5360 | if (sgot == NULL) |
5361 | return bfd_reloc_notsupported; | |
f21f3fe0 | 5362 | |
252b5132 RH |
5363 | if (h != NULL) |
5364 | { | |
5365 | bfd_vma off; | |
5e681ec4 | 5366 | bfd_boolean dyn; |
f21f3fe0 | 5367 | |
252b5132 RH |
5368 | off = h->got.offset; |
5369 | BFD_ASSERT (off != (bfd_vma) -1); | |
5e681ec4 | 5370 | dyn = globals->root.dynamic_sections_created; |
f21f3fe0 | 5371 | |
5e681ec4 | 5372 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
50d6c878 | 5373 | || (info->shared |
5e681ec4 PB |
5374 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
5375 | || (ELF_ST_VISIBILITY (h->other) | |
5376 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
5377 | { |
5378 | /* This is actually a static link, or it is a -Bsymbolic link | |
5379 | and the symbol is defined locally. We must initialize this | |
5380 | entry in the global offset table. Since the offset must | |
5381 | always be a multiple of 4, we use the least significant bit | |
5382 | to record whether we have initialized it already. | |
f21f3fe0 | 5383 | |
00a97672 | 5384 | When doing a dynamic link, we create a .rel(a).got relocation |
f21f3fe0 | 5385 | entry to initialize the value. This is done in the |
9b485d32 | 5386 | finish_dynamic_symbol routine. */ |
252b5132 RH |
5387 | if ((off & 1) != 0) |
5388 | off &= ~1; | |
5389 | else | |
5390 | { | |
ee29b9fb RE |
5391 | /* If we are addressing a Thumb function, we need to |
5392 | adjust the address by one, so that attempts to | |
5393 | call the function pointer will correctly | |
5394 | interpret it as Thumb code. */ | |
5395 | if (sym_flags == STT_ARM_TFUNC) | |
5396 | value |= 1; | |
5397 | ||
252b5132 RH |
5398 | bfd_put_32 (output_bfd, value, sgot->contents + off); |
5399 | h->got.offset |= 1; | |
5400 | } | |
5401 | } | |
0945cdfd DJ |
5402 | else |
5403 | *unresolved_reloc_p = FALSE; | |
f21f3fe0 | 5404 | |
252b5132 RH |
5405 | value = sgot->output_offset + off; |
5406 | } | |
5407 | else | |
5408 | { | |
5409 | bfd_vma off; | |
f21f3fe0 | 5410 | |
252b5132 RH |
5411 | BFD_ASSERT (local_got_offsets != NULL && |
5412 | local_got_offsets[r_symndx] != (bfd_vma) -1); | |
f21f3fe0 | 5413 | |
252b5132 | 5414 | off = local_got_offsets[r_symndx]; |
f21f3fe0 | 5415 | |
252b5132 RH |
5416 | /* The offset must always be a multiple of 4. We use the |
5417 | least significant bit to record whether we have already | |
9b485d32 | 5418 | generated the necessary reloc. */ |
252b5132 RH |
5419 | if ((off & 1) != 0) |
5420 | off &= ~1; | |
5421 | else | |
5422 | { | |
b7693d02 DJ |
5423 | /* If we are addressing a Thumb function, we need to |
5424 | adjust the address by one, so that attempts to | |
5425 | call the function pointer will correctly | |
5426 | interpret it as Thumb code. */ | |
5427 | if (sym_flags == STT_ARM_TFUNC) | |
5428 | value |= 1; | |
5429 | ||
00a97672 RS |
5430 | if (globals->use_rel) |
5431 | bfd_put_32 (output_bfd, value, sgot->contents + off); | |
f21f3fe0 | 5432 | |
252b5132 RH |
5433 | if (info->shared) |
5434 | { | |
5435 | asection * srelgot; | |
947216bf AM |
5436 | Elf_Internal_Rela outrel; |
5437 | bfd_byte *loc; | |
f21f3fe0 | 5438 | |
00a97672 RS |
5439 | srelgot = (bfd_get_section_by_name |
5440 | (dynobj, RELOC_SECTION (globals, ".got"))); | |
252b5132 | 5441 | BFD_ASSERT (srelgot != NULL); |
f21f3fe0 | 5442 | |
00a97672 | 5443 | outrel.r_addend = addend + value; |
252b5132 | 5444 | outrel.r_offset = (sgot->output_section->vma |
f21f3fe0 | 5445 | + sgot->output_offset |
252b5132 RH |
5446 | + off); |
5447 | outrel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE); | |
947216bf | 5448 | loc = srelgot->contents; |
00a97672 RS |
5449 | loc += srelgot->reloc_count++ * RELOC_SIZE (globals); |
5450 | SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc); | |
252b5132 | 5451 | } |
f21f3fe0 | 5452 | |
252b5132 RH |
5453 | local_got_offsets[r_symndx] |= 1; |
5454 | } | |
f21f3fe0 | 5455 | |
252b5132 RH |
5456 | value = sgot->output_offset + off; |
5457 | } | |
eb043451 PB |
5458 | if (r_type != R_ARM_GOT32) |
5459 | value += sgot->output_section->vma; | |
9a5aca8c | 5460 | |
f21f3fe0 | 5461 | return _bfd_final_link_relocate (howto, input_bfd, input_section, |
99e4ae17 | 5462 | contents, rel->r_offset, value, |
00a97672 | 5463 | rel->r_addend); |
f21f3fe0 | 5464 | |
ba93b8ac DJ |
5465 | case R_ARM_TLS_LDO32: |
5466 | value = value - dtpoff_base (info); | |
5467 | ||
5468 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
00a97672 RS |
5469 | contents, rel->r_offset, value, |
5470 | rel->r_addend); | |
ba93b8ac DJ |
5471 | |
5472 | case R_ARM_TLS_LDM32: | |
5473 | { | |
5474 | bfd_vma off; | |
5475 | ||
5476 | if (globals->sgot == NULL) | |
5477 | abort (); | |
5478 | ||
5479 | off = globals->tls_ldm_got.offset; | |
5480 | ||
5481 | if ((off & 1) != 0) | |
5482 | off &= ~1; | |
5483 | else | |
5484 | { | |
5485 | /* If we don't know the module number, create a relocation | |
5486 | for it. */ | |
5487 | if (info->shared) | |
5488 | { | |
5489 | Elf_Internal_Rela outrel; | |
5490 | bfd_byte *loc; | |
5491 | ||
5492 | if (globals->srelgot == NULL) | |
5493 | abort (); | |
5494 | ||
00a97672 | 5495 | outrel.r_addend = 0; |
ba93b8ac DJ |
5496 | outrel.r_offset = (globals->sgot->output_section->vma |
5497 | + globals->sgot->output_offset + off); | |
5498 | outrel.r_info = ELF32_R_INFO (0, R_ARM_TLS_DTPMOD32); | |
5499 | ||
00a97672 RS |
5500 | if (globals->use_rel) |
5501 | bfd_put_32 (output_bfd, outrel.r_addend, | |
5502 | globals->sgot->contents + off); | |
ba93b8ac DJ |
5503 | |
5504 | loc = globals->srelgot->contents; | |
00a97672 RS |
5505 | loc += globals->srelgot->reloc_count++ * RELOC_SIZE (globals); |
5506 | SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc); | |
ba93b8ac DJ |
5507 | } |
5508 | else | |
5509 | bfd_put_32 (output_bfd, 1, globals->sgot->contents + off); | |
5510 | ||
5511 | globals->tls_ldm_got.offset |= 1; | |
5512 | } | |
5513 | ||
5514 | value = globals->sgot->output_section->vma + globals->sgot->output_offset + off | |
5515 | - (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
5516 | ||
5517 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5518 | contents, rel->r_offset, value, | |
00a97672 | 5519 | rel->r_addend); |
ba93b8ac DJ |
5520 | } |
5521 | ||
5522 | case R_ARM_TLS_GD32: | |
5523 | case R_ARM_TLS_IE32: | |
5524 | { | |
5525 | bfd_vma off; | |
5526 | int indx; | |
5527 | char tls_type; | |
5528 | ||
5529 | if (globals->sgot == NULL) | |
5530 | abort (); | |
5531 | ||
5532 | indx = 0; | |
5533 | if (h != NULL) | |
5534 | { | |
5535 | bfd_boolean dyn; | |
5536 | dyn = globals->root.dynamic_sections_created; | |
5537 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
5538 | && (!info->shared | |
5539 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
5540 | { | |
5541 | *unresolved_reloc_p = FALSE; | |
5542 | indx = h->dynindx; | |
5543 | } | |
5544 | off = h->got.offset; | |
5545 | tls_type = ((struct elf32_arm_link_hash_entry *) h)->tls_type; | |
5546 | } | |
5547 | else | |
5548 | { | |
5549 | if (local_got_offsets == NULL) | |
5550 | abort (); | |
5551 | off = local_got_offsets[r_symndx]; | |
5552 | tls_type = elf32_arm_local_got_tls_type (input_bfd)[r_symndx]; | |
5553 | } | |
5554 | ||
5555 | if (tls_type == GOT_UNKNOWN) | |
5556 | abort (); | |
5557 | ||
5558 | if ((off & 1) != 0) | |
5559 | off &= ~1; | |
5560 | else | |
5561 | { | |
5562 | bfd_boolean need_relocs = FALSE; | |
5563 | Elf_Internal_Rela outrel; | |
5564 | bfd_byte *loc = NULL; | |
5565 | int cur_off = off; | |
5566 | ||
5567 | /* The GOT entries have not been initialized yet. Do it | |
5568 | now, and emit any relocations. If both an IE GOT and a | |
5569 | GD GOT are necessary, we emit the GD first. */ | |
5570 | ||
5571 | if ((info->shared || indx != 0) | |
5572 | && (h == NULL | |
5573 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5574 | || h->root.type != bfd_link_hash_undefweak)) | |
5575 | { | |
5576 | need_relocs = TRUE; | |
5577 | if (globals->srelgot == NULL) | |
5578 | abort (); | |
5579 | loc = globals->srelgot->contents; | |
00a97672 | 5580 | loc += globals->srelgot->reloc_count * RELOC_SIZE (globals); |
ba93b8ac DJ |
5581 | } |
5582 | ||
5583 | if (tls_type & GOT_TLS_GD) | |
5584 | { | |
5585 | if (need_relocs) | |
5586 | { | |
00a97672 | 5587 | outrel.r_addend = 0; |
ba93b8ac | 5588 | outrel.r_offset = (globals->sgot->output_section->vma |
00a97672 RS |
5589 | + globals->sgot->output_offset |
5590 | + cur_off); | |
ba93b8ac | 5591 | outrel.r_info = ELF32_R_INFO (indx, R_ARM_TLS_DTPMOD32); |
ba93b8ac | 5592 | |
00a97672 RS |
5593 | if (globals->use_rel) |
5594 | bfd_put_32 (output_bfd, outrel.r_addend, | |
5595 | globals->sgot->contents + cur_off); | |
5596 | ||
5597 | SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc); | |
ba93b8ac | 5598 | globals->srelgot->reloc_count++; |
00a97672 | 5599 | loc += RELOC_SIZE (globals); |
ba93b8ac DJ |
5600 | |
5601 | if (indx == 0) | |
5602 | bfd_put_32 (output_bfd, value - dtpoff_base (info), | |
5603 | globals->sgot->contents + cur_off + 4); | |
5604 | else | |
5605 | { | |
00a97672 | 5606 | outrel.r_addend = 0; |
ba93b8ac DJ |
5607 | outrel.r_info = ELF32_R_INFO (indx, |
5608 | R_ARM_TLS_DTPOFF32); | |
5609 | outrel.r_offset += 4; | |
00a97672 RS |
5610 | |
5611 | if (globals->use_rel) | |
5612 | bfd_put_32 (output_bfd, outrel.r_addend, | |
5613 | globals->sgot->contents + cur_off + 4); | |
5614 | ||
5615 | ||
5616 | SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc); | |
ba93b8ac | 5617 | globals->srelgot->reloc_count++; |
00a97672 | 5618 | loc += RELOC_SIZE (globals); |
ba93b8ac DJ |
5619 | } |
5620 | } | |
5621 | else | |
5622 | { | |
5623 | /* If we are not emitting relocations for a | |
5624 | general dynamic reference, then we must be in a | |
5625 | static link or an executable link with the | |
5626 | symbol binding locally. Mark it as belonging | |
5627 | to module 1, the executable. */ | |
5628 | bfd_put_32 (output_bfd, 1, | |
5629 | globals->sgot->contents + cur_off); | |
5630 | bfd_put_32 (output_bfd, value - dtpoff_base (info), | |
5631 | globals->sgot->contents + cur_off + 4); | |
5632 | } | |
5633 | ||
5634 | cur_off += 8; | |
5635 | } | |
5636 | ||
5637 | if (tls_type & GOT_TLS_IE) | |
5638 | { | |
5639 | if (need_relocs) | |
5640 | { | |
00a97672 RS |
5641 | if (indx == 0) |
5642 | outrel.r_addend = value - dtpoff_base (info); | |
5643 | else | |
5644 | outrel.r_addend = 0; | |
ba93b8ac DJ |
5645 | outrel.r_offset = (globals->sgot->output_section->vma |
5646 | + globals->sgot->output_offset | |
5647 | + cur_off); | |
5648 | outrel.r_info = ELF32_R_INFO (indx, R_ARM_TLS_TPOFF32); | |
5649 | ||
00a97672 RS |
5650 | if (globals->use_rel) |
5651 | bfd_put_32 (output_bfd, outrel.r_addend, | |
ba93b8ac DJ |
5652 | globals->sgot->contents + cur_off); |
5653 | ||
00a97672 | 5654 | SWAP_RELOC_OUT (globals) (output_bfd, &outrel, loc); |
ba93b8ac | 5655 | globals->srelgot->reloc_count++; |
00a97672 | 5656 | loc += RELOC_SIZE (globals); |
ba93b8ac DJ |
5657 | } |
5658 | else | |
5659 | bfd_put_32 (output_bfd, tpoff (info, value), | |
5660 | globals->sgot->contents + cur_off); | |
5661 | cur_off += 4; | |
5662 | } | |
5663 | ||
5664 | if (h != NULL) | |
5665 | h->got.offset |= 1; | |
5666 | else | |
5667 | local_got_offsets[r_symndx] |= 1; | |
5668 | } | |
5669 | ||
5670 | if ((tls_type & GOT_TLS_GD) && r_type != R_ARM_TLS_GD32) | |
5671 | off += 8; | |
5672 | value = globals->sgot->output_section->vma + globals->sgot->output_offset + off | |
5673 | - (input_section->output_section->vma + input_section->output_offset + rel->r_offset); | |
5674 | ||
5675 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
5676 | contents, rel->r_offset, value, | |
00a97672 | 5677 | rel->r_addend); |
ba93b8ac DJ |
5678 | } |
5679 | ||
5680 | case R_ARM_TLS_LE32: | |
5681 | if (info->shared) | |
5682 | { | |
5683 | (*_bfd_error_handler) | |
5684 | (_("%B(%A+0x%lx): R_ARM_TLS_LE32 relocation not permitted in shared object"), | |
5685 | input_bfd, input_section, | |
5686 | (long) rel->r_offset, howto->name); | |
5687 | return FALSE; | |
5688 | } | |
5689 | else | |
5690 | value = tpoff (info, value); | |
5691 | ||
5692 | return _bfd_final_link_relocate (howto, input_bfd, input_section, | |
00a97672 RS |
5693 | contents, rel->r_offset, value, |
5694 | rel->r_addend); | |
ba93b8ac | 5695 | |
319850b4 JB |
5696 | case R_ARM_V4BX: |
5697 | if (globals->fix_v4bx) | |
5698 | { | |
5699 | bfd_vma insn = bfd_get_32 (input_bfd, hit_data); | |
5700 | ||
5701 | /* Ensure that we have a BX instruction. */ | |
5702 | BFD_ASSERT ((insn & 0x0ffffff0) == 0x012fff10); | |
5703 | ||
5704 | /* Preserve Rm (lowest four bits) and the condition code | |
5705 | (highest four bits). Other bits encode MOV PC,Rm. */ | |
5706 | insn = (insn & 0xf000000f) | 0x01a0f000; | |
5707 | ||
5708 | bfd_put_32 (input_bfd, insn, hit_data); | |
5709 | } | |
5710 | return bfd_reloc_ok; | |
5711 | ||
b6895b4f PB |
5712 | case R_ARM_MOVW_ABS_NC: |
5713 | case R_ARM_MOVT_ABS: | |
5714 | case R_ARM_MOVW_PREL_NC: | |
5715 | case R_ARM_MOVT_PREL: | |
92f5d02b MS |
5716 | /* Until we properly support segment-base-relative addressing then |
5717 | we assume the segment base to be zero, as for the group relocations. | |
5718 | Thus R_ARM_MOVW_BREL_NC has the same semantics as R_ARM_MOVW_ABS_NC | |
5719 | and R_ARM_MOVT_BREL has the same semantics as R_ARM_MOVT_ABS. */ | |
5720 | case R_ARM_MOVW_BREL_NC: | |
5721 | case R_ARM_MOVW_BREL: | |
5722 | case R_ARM_MOVT_BREL: | |
b6895b4f PB |
5723 | { |
5724 | bfd_vma insn = bfd_get_32 (input_bfd, hit_data); | |
5725 | ||
5726 | if (globals->use_rel) | |
5727 | { | |
5728 | addend = ((insn >> 4) & 0xf000) | (insn & 0xfff); | |
5729 | signed_addend = (addend ^ 0x10000) - 0x10000; | |
5730 | } | |
92f5d02b | 5731 | |
b6895b4f | 5732 | value += signed_addend; |
b6895b4f PB |
5733 | |
5734 | if (r_type == R_ARM_MOVW_PREL_NC || r_type == R_ARM_MOVT_PREL) | |
5735 | value -= (input_section->output_section->vma | |
5736 | + input_section->output_offset + rel->r_offset); | |
5737 | ||
92f5d02b MS |
5738 | if (r_type == R_ARM_MOVW_BREL && value >= 0x10000) |
5739 | return bfd_reloc_overflow; | |
5740 | ||
5741 | if (sym_flags == STT_ARM_TFUNC) | |
5742 | value |= 1; | |
5743 | ||
5744 | if (r_type == R_ARM_MOVT_ABS || r_type == R_ARM_MOVT_PREL | |
5745 | || r_type == R_ARM_MOVT_BREL) | |
b6895b4f PB |
5746 | value >>= 16; |
5747 | ||
5748 | insn &= 0xfff0f000; | |
5749 | insn |= value & 0xfff; | |
5750 | insn |= (value & 0xf000) << 4; | |
5751 | bfd_put_32 (input_bfd, insn, hit_data); | |
5752 | } | |
5753 | return bfd_reloc_ok; | |
5754 | ||
5755 | case R_ARM_THM_MOVW_ABS_NC: | |
5756 | case R_ARM_THM_MOVT_ABS: | |
5757 | case R_ARM_THM_MOVW_PREL_NC: | |
5758 | case R_ARM_THM_MOVT_PREL: | |
92f5d02b MS |
5759 | /* Until we properly support segment-base-relative addressing then |
5760 | we assume the segment base to be zero, as for the above relocations. | |
5761 | Thus R_ARM_THM_MOVW_BREL_NC has the same semantics as | |
5762 | R_ARM_THM_MOVW_ABS_NC and R_ARM_THM_MOVT_BREL has the same semantics | |
5763 | as R_ARM_THM_MOVT_ABS. */ | |
5764 | case R_ARM_THM_MOVW_BREL_NC: | |
5765 | case R_ARM_THM_MOVW_BREL: | |
5766 | case R_ARM_THM_MOVT_BREL: | |
b6895b4f PB |
5767 | { |
5768 | bfd_vma insn; | |
5769 | ||
5770 | insn = bfd_get_16 (input_bfd, hit_data) << 16; | |
5771 | insn |= bfd_get_16 (input_bfd, hit_data + 2); | |
5772 | ||
5773 | if (globals->use_rel) | |
5774 | { | |
5775 | addend = ((insn >> 4) & 0xf000) | |
5776 | | ((insn >> 15) & 0x0800) | |
5777 | | ((insn >> 4) & 0x0700) | |
5778 | | (insn & 0x00ff); | |
5779 | signed_addend = (addend ^ 0x10000) - 0x10000; | |
5780 | } | |
92f5d02b | 5781 | |
b6895b4f | 5782 | value += signed_addend; |
b6895b4f PB |
5783 | |
5784 | if (r_type == R_ARM_THM_MOVW_PREL_NC || r_type == R_ARM_THM_MOVT_PREL) | |
5785 | value -= (input_section->output_section->vma | |
5786 | + input_section->output_offset + rel->r_offset); | |
5787 | ||
92f5d02b MS |
5788 | if (r_type == R_ARM_THM_MOVW_BREL && value >= 0x10000) |
5789 | return bfd_reloc_overflow; | |
5790 | ||
5791 | if (sym_flags == STT_ARM_TFUNC) | |
5792 | value |= 1; | |
5793 | ||
5794 | if (r_type == R_ARM_THM_MOVT_ABS || r_type == R_ARM_THM_MOVT_PREL | |
5795 | || r_type == R_ARM_THM_MOVT_BREL) | |
b6895b4f PB |
5796 | value >>= 16; |
5797 | ||
5798 | insn &= 0xfbf08f00; | |
5799 | insn |= (value & 0xf000) << 4; | |
5800 | insn |= (value & 0x0800) << 15; | |
5801 | insn |= (value & 0x0700) << 4; | |
5802 | insn |= (value & 0x00ff); | |
5803 | ||
5804 | bfd_put_16 (input_bfd, insn >> 16, hit_data); | |
5805 | bfd_put_16 (input_bfd, insn & 0xffff, hit_data + 2); | |
5806 | } | |
5807 | return bfd_reloc_ok; | |
5808 | ||
4962c51a MS |
5809 | case R_ARM_ALU_PC_G0_NC: |
5810 | case R_ARM_ALU_PC_G1_NC: | |
5811 | case R_ARM_ALU_PC_G0: | |
5812 | case R_ARM_ALU_PC_G1: | |
5813 | case R_ARM_ALU_PC_G2: | |
5814 | case R_ARM_ALU_SB_G0_NC: | |
5815 | case R_ARM_ALU_SB_G1_NC: | |
5816 | case R_ARM_ALU_SB_G0: | |
5817 | case R_ARM_ALU_SB_G1: | |
5818 | case R_ARM_ALU_SB_G2: | |
5819 | { | |
5820 | bfd_vma insn = bfd_get_32 (input_bfd, hit_data); | |
5821 | bfd_vma pc = input_section->output_section->vma | |
5822 | + input_section->output_offset + rel->r_offset; | |
5823 | /* sb should be the origin of the *segment* containing the symbol. | |
5824 | It is not clear how to obtain this OS-dependent value, so we | |
5825 | make an arbitrary choice of zero. */ | |
5826 | bfd_vma sb = 0; | |
5827 | bfd_vma residual; | |
5828 | bfd_vma g_n; | |
5829 | bfd_signed_vma signed_value; | |
5830 | int group = 0; | |
5831 | ||
5832 | /* Determine which group of bits to select. */ | |
5833 | switch (r_type) | |
5834 | { | |
5835 | case R_ARM_ALU_PC_G0_NC: | |
5836 | case R_ARM_ALU_PC_G0: | |
5837 | case R_ARM_ALU_SB_G0_NC: | |
5838 | case R_ARM_ALU_SB_G0: | |
5839 | group = 0; | |
5840 | break; | |
5841 | ||
5842 | case R_ARM_ALU_PC_G1_NC: | |
5843 | case R_ARM_ALU_PC_G1: | |
5844 | case R_ARM_ALU_SB_G1_NC: | |
5845 | case R_ARM_ALU_SB_G1: | |
5846 | group = 1; | |
5847 | break; | |
5848 | ||
5849 | case R_ARM_ALU_PC_G2: | |
5850 | case R_ARM_ALU_SB_G2: | |
5851 | group = 2; | |
5852 | break; | |
5853 | ||
5854 | default: | |
5855 | abort(); | |
5856 | } | |
5857 | ||
5858 | /* If REL, extract the addend from the insn. If RELA, it will | |
5859 | have already been fetched for us. */ | |
5860 | if (globals->use_rel) | |
5861 | { | |
5862 | int negative; | |
5863 | bfd_vma constant = insn & 0xff; | |
5864 | bfd_vma rotation = (insn & 0xf00) >> 8; | |
5865 | ||
5866 | if (rotation == 0) | |
5867 | signed_addend = constant; | |
5868 | else | |
5869 | { | |
5870 | /* Compensate for the fact that in the instruction, the | |
5871 | rotation is stored in multiples of 2 bits. */ | |
5872 | rotation *= 2; | |
5873 | ||
5874 | /* Rotate "constant" right by "rotation" bits. */ | |
5875 | signed_addend = (constant >> rotation) | | |
5876 | (constant << (8 * sizeof (bfd_vma) - rotation)); | |
5877 | } | |
5878 | ||
5879 | /* Determine if the instruction is an ADD or a SUB. | |
5880 | (For REL, this determines the sign of the addend.) */ | |
5881 | negative = identify_add_or_sub (insn); | |
5882 | if (negative == 0) | |
5883 | { | |
5884 | (*_bfd_error_handler) | |
5885 | (_("%B(%A+0x%lx): Only ADD or SUB instructions are allowed for ALU group relocations"), | |
5886 | input_bfd, input_section, | |
5887 | (long) rel->r_offset, howto->name); | |
5888 | return bfd_reloc_overflow; | |
5889 | } | |
5890 | ||
5891 | signed_addend *= negative; | |
5892 | } | |
5893 | ||
5894 | /* Compute the value (X) to go in the place. */ | |
5895 | if (r_type == R_ARM_ALU_PC_G0_NC | |
5896 | || r_type == R_ARM_ALU_PC_G1_NC | |
5897 | || r_type == R_ARM_ALU_PC_G0 | |
5898 | || r_type == R_ARM_ALU_PC_G1 | |
5899 | || r_type == R_ARM_ALU_PC_G2) | |
5900 | /* PC relative. */ | |
5901 | signed_value = value - pc + signed_addend; | |
5902 | else | |
5903 | /* Section base relative. */ | |
5904 | signed_value = value - sb + signed_addend; | |
5905 | ||
5906 | /* If the target symbol is a Thumb function, then set the | |
5907 | Thumb bit in the address. */ | |
5908 | if (sym_flags == STT_ARM_TFUNC) | |
5909 | signed_value |= 1; | |
5910 | ||
5911 | /* Calculate the value of the relevant G_n, in encoded | |
5912 | constant-with-rotation format. */ | |
5913 | g_n = calculate_group_reloc_mask (abs (signed_value), group, | |
5914 | &residual); | |
5915 | ||
5916 | /* Check for overflow if required. */ | |
5917 | if ((r_type == R_ARM_ALU_PC_G0 | |
5918 | || r_type == R_ARM_ALU_PC_G1 | |
5919 | || r_type == R_ARM_ALU_PC_G2 | |
5920 | || r_type == R_ARM_ALU_SB_G0 | |
5921 | || r_type == R_ARM_ALU_SB_G1 | |
5922 | || r_type == R_ARM_ALU_SB_G2) && residual != 0) | |
5923 | { | |
5924 | (*_bfd_error_handler) | |
5925 | (_("%B(%A+0x%lx): Overflow whilst splitting 0x%lx for group relocation %s"), | |
5926 | input_bfd, input_section, | |
5927 | (long) rel->r_offset, abs (signed_value), howto->name); | |
5928 | return bfd_reloc_overflow; | |
5929 | } | |
5930 | ||
5931 | /* Mask out the value and the ADD/SUB part of the opcode; take care | |
5932 | not to destroy the S bit. */ | |
5933 | insn &= 0xff1ff000; | |
5934 | ||
5935 | /* Set the opcode according to whether the value to go in the | |
5936 | place is negative. */ | |
5937 | if (signed_value < 0) | |
5938 | insn |= 1 << 22; | |
5939 | else | |
5940 | insn |= 1 << 23; | |
5941 | ||
5942 | /* Encode the offset. */ | |
5943 | insn |= g_n; | |
5944 | ||
5945 | bfd_put_32 (input_bfd, insn, hit_data); | |
5946 | } | |
5947 | return bfd_reloc_ok; | |
5948 | ||
5949 | case R_ARM_LDR_PC_G0: | |
5950 | case R_ARM_LDR_PC_G1: | |
5951 | case R_ARM_LDR_PC_G2: | |
5952 | case R_ARM_LDR_SB_G0: | |
5953 | case R_ARM_LDR_SB_G1: | |
5954 | case R_ARM_LDR_SB_G2: | |
5955 | { | |
5956 | bfd_vma insn = bfd_get_32 (input_bfd, hit_data); | |
5957 | bfd_vma pc = input_section->output_section->vma | |
5958 | + input_section->output_offset + rel->r_offset; | |
5959 | bfd_vma sb = 0; /* See note above. */ | |
5960 | bfd_vma residual; | |
5961 | bfd_signed_vma signed_value; | |
5962 | int group = 0; | |
5963 | ||
5964 | /* Determine which groups of bits to calculate. */ | |
5965 | switch (r_type) | |
5966 | { | |
5967 | case R_ARM_LDR_PC_G0: | |
5968 | case R_ARM_LDR_SB_G0: | |
5969 | group = 0; | |
5970 | break; | |
5971 | ||
5972 | case R_ARM_LDR_PC_G1: | |
5973 | case R_ARM_LDR_SB_G1: | |
5974 | group = 1; | |
5975 | break; | |
5976 | ||
5977 | case R_ARM_LDR_PC_G2: | |
5978 | case R_ARM_LDR_SB_G2: | |
5979 | group = 2; | |
5980 | break; | |
5981 | ||
5982 | default: | |
5983 | abort(); | |
5984 | } | |
5985 | ||
5986 | /* If REL, extract the addend from the insn. If RELA, it will | |
5987 | have already been fetched for us. */ | |
5988 | if (globals->use_rel) | |
5989 | { | |
5990 | int negative = (insn & (1 << 23)) ? 1 : -1; | |
5991 | signed_addend = negative * (insn & 0xfff); | |
5992 | } | |
5993 | ||
5994 | /* Compute the value (X) to go in the place. */ | |
5995 | if (r_type == R_ARM_LDR_PC_G0 | |
5996 | || r_type == R_ARM_LDR_PC_G1 | |
5997 | || r_type == R_ARM_LDR_PC_G2) | |
5998 | /* PC relative. */ | |
5999 | signed_value = value - pc + signed_addend; | |
6000 | else | |
6001 | /* Section base relative. */ | |
6002 | signed_value = value - sb + signed_addend; | |
6003 | ||
6004 | /* Calculate the value of the relevant G_{n-1} to obtain | |
6005 | the residual at that stage. */ | |
6006 | calculate_group_reloc_mask (abs (signed_value), group - 1, &residual); | |
6007 | ||
6008 | /* Check for overflow. */ | |
6009 | if (residual >= 0x1000) | |
6010 | { | |
6011 | (*_bfd_error_handler) | |
6012 | (_("%B(%A+0x%lx): Overflow whilst splitting 0x%lx for group relocation %s"), | |
6013 | input_bfd, input_section, | |
6014 | (long) rel->r_offset, abs (signed_value), howto->name); | |
6015 | return bfd_reloc_overflow; | |
6016 | } | |
6017 | ||
6018 | /* Mask out the value and U bit. */ | |
6019 | insn &= 0xff7ff000; | |
6020 | ||
6021 | /* Set the U bit if the value to go in the place is non-negative. */ | |
6022 | if (signed_value >= 0) | |
6023 | insn |= 1 << 23; | |
6024 | ||
6025 | /* Encode the offset. */ | |
6026 | insn |= residual; | |
6027 | ||
6028 | bfd_put_32 (input_bfd, insn, hit_data); | |
6029 | } | |
6030 | return bfd_reloc_ok; | |
6031 | ||
6032 | case R_ARM_LDRS_PC_G0: | |
6033 | case R_ARM_LDRS_PC_G1: | |
6034 | case R_ARM_LDRS_PC_G2: | |
6035 | case R_ARM_LDRS_SB_G0: | |
6036 | case R_ARM_LDRS_SB_G1: | |
6037 | case R_ARM_LDRS_SB_G2: | |
6038 | { | |
6039 | bfd_vma insn = bfd_get_32 (input_bfd, hit_data); | |
6040 | bfd_vma pc = input_section->output_section->vma | |
6041 | + input_section->output_offset + rel->r_offset; | |
6042 | bfd_vma sb = 0; /* See note above. */ | |
6043 | bfd_vma residual; | |
6044 | bfd_signed_vma signed_value; | |
6045 | int group = 0; | |
6046 | ||
6047 | /* Determine which groups of bits to calculate. */ | |
6048 | switch (r_type) | |
6049 | { | |
6050 | case R_ARM_LDRS_PC_G0: | |
6051 | case R_ARM_LDRS_SB_G0: | |
6052 | group = 0; | |
6053 | break; | |
6054 | ||
6055 | case R_ARM_LDRS_PC_G1: | |
6056 | case R_ARM_LDRS_SB_G1: | |
6057 | group = 1; | |
6058 | break; | |
6059 | ||
6060 | case R_ARM_LDRS_PC_G2: | |
6061 | case R_ARM_LDRS_SB_G2: | |
6062 | group = 2; | |
6063 | break; | |
6064 | ||
6065 | default: | |
6066 | abort(); | |
6067 | } | |
6068 | ||
6069 | /* If REL, extract the addend from the insn. If RELA, it will | |
6070 | have already been fetched for us. */ | |
6071 | if (globals->use_rel) | |
6072 | { | |
6073 | int negative = (insn & (1 << 23)) ? 1 : -1; | |
6074 | signed_addend = negative * (((insn & 0xf00) >> 4) + (insn & 0xf)); | |
6075 | } | |
6076 | ||
6077 | /* Compute the value (X) to go in the place. */ | |
6078 | if (r_type == R_ARM_LDRS_PC_G0 | |
6079 | || r_type == R_ARM_LDRS_PC_G1 | |
6080 | || r_type == R_ARM_LDRS_PC_G2) | |
6081 | /* PC relative. */ | |
6082 | signed_value = value - pc + signed_addend; | |
6083 | else | |
6084 | /* Section base relative. */ | |
6085 | signed_value = value - sb + signed_addend; | |
6086 | ||
6087 | /* Calculate the value of the relevant G_{n-1} to obtain | |
6088 | the residual at that stage. */ | |
6089 | calculate_group_reloc_mask (abs (signed_value), group - 1, &residual); | |
6090 | ||
6091 | /* Check for overflow. */ | |
6092 | if (residual >= 0x100) | |
6093 | { | |
6094 | (*_bfd_error_handler) | |
6095 | (_("%B(%A+0x%lx): Overflow whilst splitting 0x%lx for group relocation %s"), | |
6096 | input_bfd, input_section, | |
6097 | (long) rel->r_offset, abs (signed_value), howto->name); | |
6098 | return bfd_reloc_overflow; | |
6099 | } | |
6100 | ||
6101 | /* Mask out the value and U bit. */ | |
6102 | insn &= 0xff7ff0f0; | |
6103 | ||
6104 | /* Set the U bit if the value to go in the place is non-negative. */ | |
6105 | if (signed_value >= 0) | |
6106 | insn |= 1 << 23; | |
6107 | ||
6108 | /* Encode the offset. */ | |
6109 | insn |= ((residual & 0xf0) << 4) | (residual & 0xf); | |
6110 | ||
6111 | bfd_put_32 (input_bfd, insn, hit_data); | |
6112 | } | |
6113 | return bfd_reloc_ok; | |
6114 | ||
6115 | case R_ARM_LDC_PC_G0: | |
6116 | case R_ARM_LDC_PC_G1: | |
6117 | case R_ARM_LDC_PC_G2: | |
6118 | case R_ARM_LDC_SB_G0: | |
6119 | case R_ARM_LDC_SB_G1: | |
6120 | case R_ARM_LDC_SB_G2: | |
6121 | { | |
6122 | bfd_vma insn = bfd_get_32 (input_bfd, hit_data); | |
6123 | bfd_vma pc = input_section->output_section->vma | |
6124 | + input_section->output_offset + rel->r_offset; | |
6125 | bfd_vma sb = 0; /* See note above. */ | |
6126 | bfd_vma residual; | |
6127 | bfd_signed_vma signed_value; | |
6128 | int group = 0; | |
6129 | ||
6130 | /* Determine which groups of bits to calculate. */ | |
6131 | switch (r_type) | |
6132 | { | |
6133 | case R_ARM_LDC_PC_G0: | |
6134 | case R_ARM_LDC_SB_G0: | |
6135 | group = 0; | |
6136 | break; | |
6137 | ||
6138 | case R_ARM_LDC_PC_G1: | |
6139 | case R_ARM_LDC_SB_G1: | |
6140 | group = 1; | |
6141 | break; | |
6142 | ||
6143 | case R_ARM_LDC_PC_G2: | |
6144 | case R_ARM_LDC_SB_G2: | |
6145 | group = 2; | |
6146 | break; | |
6147 | ||
6148 | default: | |
6149 | abort(); | |
6150 | } | |
6151 | ||
6152 | /* If REL, extract the addend from the insn. If RELA, it will | |
6153 | have already been fetched for us. */ | |
6154 | if (globals->use_rel) | |
6155 | { | |
6156 | int negative = (insn & (1 << 23)) ? 1 : -1; | |
6157 | signed_addend = negative * ((insn & 0xff) << 2); | |
6158 | } | |
6159 | ||
6160 | /* Compute the value (X) to go in the place. */ | |
6161 | if (r_type == R_ARM_LDC_PC_G0 | |
6162 | || r_type == R_ARM_LDC_PC_G1 | |
6163 | || r_type == R_ARM_LDC_PC_G2) | |
6164 | /* PC relative. */ | |
6165 | signed_value = value - pc + signed_addend; | |
6166 | else | |
6167 | /* Section base relative. */ | |
6168 | signed_value = value - sb + signed_addend; | |
6169 | ||
6170 | /* Calculate the value of the relevant G_{n-1} to obtain | |
6171 | the residual at that stage. */ | |
6172 | calculate_group_reloc_mask (abs (signed_value), group - 1, &residual); | |
6173 | ||
6174 | /* Check for overflow. (The absolute value to go in the place must be | |
6175 | divisible by four and, after having been divided by four, must | |
6176 | fit in eight bits.) */ | |
6177 | if ((residual & 0x3) != 0 || residual >= 0x400) | |
6178 | { | |
6179 | (*_bfd_error_handler) | |
6180 | (_("%B(%A+0x%lx): Overflow whilst splitting 0x%lx for group relocation %s"), | |
6181 | input_bfd, input_section, | |
6182 | (long) rel->r_offset, abs (signed_value), howto->name); | |
6183 | return bfd_reloc_overflow; | |
6184 | } | |
6185 | ||
6186 | /* Mask out the value and U bit. */ | |
6187 | insn &= 0xff7fff00; | |
6188 | ||
6189 | /* Set the U bit if the value to go in the place is non-negative. */ | |
6190 | if (signed_value >= 0) | |
6191 | insn |= 1 << 23; | |
6192 | ||
6193 | /* Encode the offset. */ | |
6194 | insn |= residual >> 2; | |
6195 | ||
6196 | bfd_put_32 (input_bfd, insn, hit_data); | |
6197 | } | |
6198 | return bfd_reloc_ok; | |
6199 | ||
252b5132 RH |
6200 | default: |
6201 | return bfd_reloc_notsupported; | |
6202 | } | |
6203 | } | |
6204 | ||
ee065d83 PB |
6205 | |
6206 | static int | |
6207 | uleb128_size (unsigned int i) | |
6208 | { | |
6209 | int size; | |
6210 | size = 1; | |
6211 | while (i >= 0x80) | |
6212 | { | |
6213 | i >>= 7; | |
6214 | size++; | |
6215 | } | |
6216 | return size; | |
6217 | } | |
6218 | ||
6219 | /* Return TRUE if the attribute has the default value (0/""). */ | |
6220 | static bfd_boolean | |
6221 | is_default_attr (aeabi_attribute *attr) | |
6222 | { | |
6223 | if ((attr->type & 1) && attr->i != 0) | |
6224 | return FALSE; | |
6225 | if ((attr->type & 2) && attr->s && *attr->s) | |
6226 | return FALSE; | |
6227 | ||
6228 | return TRUE; | |
6229 | } | |
6230 | ||
6231 | /* Return the size of a single attribute. */ | |
6232 | static bfd_vma | |
6233 | eabi_attr_size(int tag, aeabi_attribute *attr) | |
6234 | { | |
6235 | bfd_vma size; | |
6236 | ||
6237 | if (is_default_attr (attr)) | |
6238 | return 0; | |
6239 | ||
6240 | size = uleb128_size (tag); | |
6241 | if (attr->type & 1) | |
6242 | size += uleb128_size (attr->i); | |
6243 | if (attr->type & 2) | |
6244 | size += strlen ((char *)attr->s) + 1; | |
6245 | return size; | |
6246 | } | |
6247 | ||
6248 | /* Returns the size of the eabi object attributess section. */ | |
6249 | bfd_vma | |
6250 | elf32_arm_eabi_attr_size (bfd *abfd) | |
6251 | { | |
6252 | bfd_vma size; | |
6253 | aeabi_attribute *attr; | |
6254 | aeabi_attribute_list *list; | |
6255 | int i; | |
6256 | ||
6257 | attr = elf32_arm_tdata (abfd)->known_eabi_attributes; | |
6258 | size = 16; /* 'A' <size> "aeabi" 0x1 <size>. */ | |
6259 | for (i = 4; i < NUM_KNOWN_ATTRIBUTES; i++) | |
6260 | size += eabi_attr_size (i, &attr[i]); | |
6261 | ||
6262 | for (list = elf32_arm_tdata (abfd)->other_eabi_attributes; | |
6263 | list; | |
6264 | list = list->next) | |
6265 | size += eabi_attr_size (list->tag, &list->attr); | |
6266 | ||
6267 | return size; | |
6268 | } | |
6269 | ||
6270 | static bfd_byte * | |
6271 | write_uleb128 (bfd_byte *p, unsigned int val) | |
6272 | { | |
6273 | bfd_byte c; | |
6274 | do | |
6275 | { | |
6276 | c = val & 0x7f; | |
6277 | val >>= 7; | |
6278 | if (val) | |
6279 | c |= 0x80; | |
6280 | *(p++) = c; | |
6281 | } | |
6282 | while (val); | |
6283 | return p; | |
6284 | } | |
6285 | ||
6286 | /* Write attribute ATTR to butter P, and return a pointer to the following | |
6287 | byte. */ | |
6288 | static bfd_byte * | |
6289 | write_eabi_attribute (bfd_byte *p, int tag, aeabi_attribute *attr) | |
6290 | { | |
6291 | /* Suppress default entries. */ | |
6292 | if (is_default_attr(attr)) | |
6293 | return p; | |
6294 | ||
6295 | p = write_uleb128 (p, tag); | |
6296 | if (attr->type & 1) | |
6297 | p = write_uleb128 (p, attr->i); | |
6298 | if (attr->type & 2) | |
6299 | { | |
6300 | int len; | |
6301 | ||
6302 | len = strlen (attr->s) + 1; | |
6303 | memcpy (p, attr->s, len); | |
6304 | p += len; | |
6305 | } | |
6306 | ||
6307 | return p; | |
6308 | } | |
6309 | ||
6310 | /* Write the contents of the eabi attributes section to p. */ | |
6311 | void | |
6312 | elf32_arm_set_eabi_attr_contents (bfd *abfd, bfd_byte *contents, bfd_vma size) | |
6313 | { | |
6314 | bfd_byte *p; | |
6315 | aeabi_attribute *attr; | |
6316 | aeabi_attribute_list *list; | |
6317 | int i; | |
6318 | ||
6319 | p = contents; | |
6320 | *(p++) = 'A'; | |
6321 | bfd_put_32 (abfd, size - 1, p); | |
6322 | p += 4; | |
6323 | memcpy (p, "aeabi", 6); | |
6324 | p += 6; | |
6325 | *(p++) = Tag_File; | |
6326 | bfd_put_32 (abfd, size - 11, p); | |
6327 | p += 4; | |
6328 | ||
6329 | attr = elf32_arm_tdata (abfd)->known_eabi_attributes; | |
6330 | for (i = 4; i < NUM_KNOWN_ATTRIBUTES; i++) | |
6331 | p = write_eabi_attribute (p, i, &attr[i]); | |
6332 | ||
6333 | for (list = elf32_arm_tdata (abfd)->other_eabi_attributes; | |
6334 | list; | |
6335 | list = list->next) | |
6336 | p = write_eabi_attribute (p, list->tag, &list->attr); | |
6337 | } | |
6338 | ||
6339 | /* Override final_link to handle EABI object attribute sections. */ | |
6340 | ||
6341 | static bfd_boolean | |
6342 | elf32_arm_bfd_final_link (bfd *abfd, struct bfd_link_info *info) | |
6343 | { | |
6344 | asection *o; | |
6345 | struct bfd_link_order *p; | |
6346 | asection *attr_section = NULL; | |
6347 | bfd_byte *contents; | |
6348 | bfd_vma size = 0; | |
6349 | ||
6350 | /* elf32_arm_merge_private_bfd_data will already have merged the | |
6351 | object attributes. Remove the input sections from the link, and set | |
6352 | the contents of the output secton. */ | |
6353 | for (o = abfd->sections; o != NULL; o = o->next) | |
6354 | { | |
6355 | if (strcmp (o->name, ".ARM.attributes") == 0) | |
6356 | { | |
6357 | for (p = o->map_head.link_order; p != NULL; p = p->next) | |
6358 | { | |
6359 | asection *input_section; | |
6360 | ||
6361 | if (p->type != bfd_indirect_link_order) | |
6362 | continue; | |
6363 | input_section = p->u.indirect.section; | |
6364 | /* Hack: reset the SEC_HAS_CONTENTS flag so that | |
6365 | elf_link_input_bfd ignores this section. */ | |
6366 | input_section->flags &= ~SEC_HAS_CONTENTS; | |
6367 | } | |
6368 | ||
6369 | size = elf32_arm_eabi_attr_size (abfd); | |
6370 | bfd_set_section_size (abfd, o, size); | |
6371 | attr_section = o; | |
6372 | /* Skip this section later on. */ | |
6373 | o->map_head.link_order = NULL; | |
6374 | } | |
6375 | } | |
6376 | /* Invoke the ELF linker to do all the work. */ | |
6377 | if (!bfd_elf_final_link (abfd, info)) | |
6378 | return FALSE; | |
6379 | ||
6380 | if (attr_section) | |
6381 | { | |
6382 | contents = bfd_malloc(size); | |
6383 | if (contents == NULL) | |
6384 | return FALSE; | |
6385 | elf32_arm_set_eabi_attr_contents (abfd, contents, size); | |
6386 | bfd_set_section_contents (abfd, attr_section, contents, 0, size); | |
6387 | free (contents); | |
6388 | } | |
6389 | return TRUE; | |
6390 | } | |
6391 | ||
6392 | ||
98c1d4aa NC |
6393 | /* Add INCREMENT to the reloc (of type HOWTO) at ADDRESS. */ |
6394 | static void | |
57e8b36a NC |
6395 | arm_add_to_rel (bfd * abfd, |
6396 | bfd_byte * address, | |
6397 | reloc_howto_type * howto, | |
6398 | bfd_signed_vma increment) | |
98c1d4aa | 6399 | { |
98c1d4aa NC |
6400 | bfd_signed_vma addend; |
6401 | ||
c19d1205 | 6402 | if (howto->type == R_ARM_THM_CALL) |
98c1d4aa | 6403 | { |
9a5aca8c AM |
6404 | int upper_insn, lower_insn; |
6405 | int upper, lower; | |
98c1d4aa | 6406 | |
9a5aca8c AM |
6407 | upper_insn = bfd_get_16 (abfd, address); |
6408 | lower_insn = bfd_get_16 (abfd, address + 2); | |
6409 | upper = upper_insn & 0x7ff; | |
6410 | lower = lower_insn & 0x7ff; | |
6411 | ||
6412 | addend = (upper << 12) | (lower << 1); | |
ddda4409 | 6413 | addend += increment; |
9a5aca8c | 6414 | addend >>= 1; |
98c1d4aa | 6415 | |
9a5aca8c AM |
6416 | upper_insn = (upper_insn & 0xf800) | ((addend >> 11) & 0x7ff); |
6417 | lower_insn = (lower_insn & 0xf800) | (addend & 0x7ff); | |
6418 | ||
dc810e39 AM |
6419 | bfd_put_16 (abfd, (bfd_vma) upper_insn, address); |
6420 | bfd_put_16 (abfd, (bfd_vma) lower_insn, address + 2); | |
9a5aca8c AM |
6421 | } |
6422 | else | |
6423 | { | |
6424 | bfd_vma contents; | |
6425 | ||
6426 | contents = bfd_get_32 (abfd, address); | |
6427 | ||
6428 | /* Get the (signed) value from the instruction. */ | |
6429 | addend = contents & howto->src_mask; | |
6430 | if (addend & ((howto->src_mask + 1) >> 1)) | |
6431 | { | |
6432 | bfd_signed_vma mask; | |
6433 | ||
6434 | mask = -1; | |
6435 | mask &= ~ howto->src_mask; | |
6436 | addend |= mask; | |
6437 | } | |
6438 | ||
6439 | /* Add in the increment, (which is a byte value). */ | |
6440 | switch (howto->type) | |
6441 | { | |
6442 | default: | |
6443 | addend += increment; | |
6444 | break; | |
6445 | ||
6446 | case R_ARM_PC24: | |
c6596c5e | 6447 | case R_ARM_PLT32: |
5b5bb741 PB |
6448 | case R_ARM_CALL: |
6449 | case R_ARM_JUMP24: | |
9a5aca8c | 6450 | addend <<= howto->size; |
dc810e39 | 6451 | addend += increment; |
9a5aca8c AM |
6452 | |
6453 | /* Should we check for overflow here ? */ | |
6454 | ||
6455 | /* Drop any undesired bits. */ | |
6456 | addend >>= howto->rightshift; | |
6457 | break; | |
6458 | } | |
6459 | ||
6460 | contents = (contents & ~ howto->dst_mask) | (addend & howto->dst_mask); | |
6461 | ||
6462 | bfd_put_32 (abfd, contents, address); | |
ddda4409 | 6463 | } |
98c1d4aa | 6464 | } |
252b5132 | 6465 | |
ba93b8ac DJ |
6466 | #define IS_ARM_TLS_RELOC(R_TYPE) \ |
6467 | ((R_TYPE) == R_ARM_TLS_GD32 \ | |
6468 | || (R_TYPE) == R_ARM_TLS_LDO32 \ | |
6469 | || (R_TYPE) == R_ARM_TLS_LDM32 \ | |
6470 | || (R_TYPE) == R_ARM_TLS_DTPOFF32 \ | |
6471 | || (R_TYPE) == R_ARM_TLS_DTPMOD32 \ | |
6472 | || (R_TYPE) == R_ARM_TLS_TPOFF32 \ | |
6473 | || (R_TYPE) == R_ARM_TLS_LE32 \ | |
6474 | || (R_TYPE) == R_ARM_TLS_IE32) | |
6475 | ||
252b5132 | 6476 | /* Relocate an ARM ELF section. */ |
b34976b6 | 6477 | static bfd_boolean |
57e8b36a NC |
6478 | elf32_arm_relocate_section (bfd * output_bfd, |
6479 | struct bfd_link_info * info, | |
6480 | bfd * input_bfd, | |
6481 | asection * input_section, | |
6482 | bfd_byte * contents, | |
6483 | Elf_Internal_Rela * relocs, | |
6484 | Elf_Internal_Sym * local_syms, | |
6485 | asection ** local_sections) | |
252b5132 | 6486 | { |
b34976b6 AM |
6487 | Elf_Internal_Shdr *symtab_hdr; |
6488 | struct elf_link_hash_entry **sym_hashes; | |
6489 | Elf_Internal_Rela *rel; | |
6490 | Elf_Internal_Rela *relend; | |
6491 | const char *name; | |
b32d3aa2 | 6492 | struct elf32_arm_link_hash_table * globals; |
252b5132 | 6493 | |
4e7fd91e | 6494 | globals = elf32_arm_hash_table (info); |
b491616a | 6495 | |
252b5132 RH |
6496 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
6497 | sym_hashes = elf_sym_hashes (input_bfd); | |
6498 | ||
6499 | rel = relocs; | |
6500 | relend = relocs + input_section->reloc_count; | |
6501 | for (; rel < relend; rel++) | |
6502 | { | |
ba96a88f NC |
6503 | int r_type; |
6504 | reloc_howto_type * howto; | |
6505 | unsigned long r_symndx; | |
6506 | Elf_Internal_Sym * sym; | |
6507 | asection * sec; | |
252b5132 | 6508 | struct elf_link_hash_entry * h; |
ba96a88f NC |
6509 | bfd_vma relocation; |
6510 | bfd_reloc_status_type r; | |
6511 | arelent bfd_reloc; | |
ba93b8ac | 6512 | char sym_type; |
0945cdfd | 6513 | bfd_boolean unresolved_reloc = FALSE; |
f2a9dd69 | 6514 | char *error_message = NULL; |
f21f3fe0 | 6515 | |
252b5132 | 6516 | r_symndx = ELF32_R_SYM (rel->r_info); |
ba96a88f | 6517 | r_type = ELF32_R_TYPE (rel->r_info); |
b32d3aa2 | 6518 | r_type = arm_real_reloc_type (globals, r_type); |
252b5132 | 6519 | |
ba96a88f NC |
6520 | if ( r_type == R_ARM_GNU_VTENTRY |
6521 | || r_type == R_ARM_GNU_VTINHERIT) | |
252b5132 RH |
6522 | continue; |
6523 | ||
b32d3aa2 | 6524 | bfd_reloc.howto = elf32_arm_howto_from_type (r_type); |
ba96a88f | 6525 | howto = bfd_reloc.howto; |
252b5132 | 6526 | |
252b5132 RH |
6527 | h = NULL; |
6528 | sym = NULL; | |
6529 | sec = NULL; | |
9b485d32 | 6530 | |
252b5132 RH |
6531 | if (r_symndx < symtab_hdr->sh_info) |
6532 | { | |
6533 | sym = local_syms + r_symndx; | |
ba93b8ac | 6534 | sym_type = ELF32_ST_TYPE (sym->st_info); |
252b5132 | 6535 | sec = local_sections[r_symndx]; |
4e7fd91e | 6536 | if (globals->use_rel) |
f8df10f4 | 6537 | { |
4e7fd91e PB |
6538 | relocation = (sec->output_section->vma |
6539 | + sec->output_offset | |
6540 | + sym->st_value); | |
ab96bf03 AM |
6541 | if (!info->relocatable |
6542 | && (sec->flags & SEC_MERGE) | |
6543 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
f8df10f4 | 6544 | { |
4e7fd91e PB |
6545 | asection *msec; |
6546 | bfd_vma addend, value; | |
6547 | ||
6548 | if (howto->rightshift) | |
6549 | { | |
6550 | (*_bfd_error_handler) | |
6551 | (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"), | |
6552 | input_bfd, input_section, | |
6553 | (long) rel->r_offset, howto->name); | |
6554 | return FALSE; | |
6555 | } | |
f8df10f4 | 6556 | |
4e7fd91e | 6557 | value = bfd_get_32 (input_bfd, contents + rel->r_offset); |
f8df10f4 | 6558 | |
4e7fd91e PB |
6559 | /* Get the (signed) value from the instruction. */ |
6560 | addend = value & howto->src_mask; | |
6561 | if (addend & ((howto->src_mask + 1) >> 1)) | |
6562 | { | |
6563 | bfd_signed_vma mask; | |
f8df10f4 | 6564 | |
4e7fd91e PB |
6565 | mask = -1; |
6566 | mask &= ~ howto->src_mask; | |
6567 | addend |= mask; | |
6568 | } | |
6569 | msec = sec; | |
6570 | addend = | |
6571 | _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) | |
6572 | - relocation; | |
6573 | addend += msec->output_section->vma + msec->output_offset; | |
6574 | value = (value & ~ howto->dst_mask) | (addend & howto->dst_mask); | |
6575 | bfd_put_32 (input_bfd, value, contents + rel->r_offset); | |
f8df10f4 | 6576 | } |
f8df10f4 | 6577 | } |
4e7fd91e PB |
6578 | else |
6579 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
252b5132 RH |
6580 | } |
6581 | else | |
6582 | { | |
560e09e9 | 6583 | bfd_boolean warned; |
560e09e9 | 6584 | |
b2a8e766 AM |
6585 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
6586 | r_symndx, symtab_hdr, sym_hashes, | |
6587 | h, sec, relocation, | |
6588 | unresolved_reloc, warned); | |
ba93b8ac DJ |
6589 | |
6590 | sym_type = h->type; | |
252b5132 RH |
6591 | } |
6592 | ||
ab96bf03 AM |
6593 | if (sec != NULL && elf_discarded_section (sec)) |
6594 | { | |
6595 | /* For relocs against symbols from removed linkonce sections, | |
6596 | or sections discarded by a linker script, we just want the | |
6597 | section contents zeroed. Avoid any special processing. */ | |
6598 | _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); | |
6599 | rel->r_info = 0; | |
6600 | rel->r_addend = 0; | |
6601 | continue; | |
6602 | } | |
6603 | ||
6604 | if (info->relocatable) | |
6605 | { | |
6606 | /* This is a relocatable link. We don't have to change | |
6607 | anything, unless the reloc is against a section symbol, | |
6608 | in which case we have to adjust according to where the | |
6609 | section symbol winds up in the output section. */ | |
6610 | if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
6611 | { | |
6612 | if (globals->use_rel) | |
6613 | arm_add_to_rel (input_bfd, contents + rel->r_offset, | |
6614 | howto, (bfd_signed_vma) sec->output_offset); | |
6615 | else | |
6616 | rel->r_addend += sec->output_offset; | |
6617 | } | |
6618 | continue; | |
6619 | } | |
6620 | ||
252b5132 RH |
6621 | if (h != NULL) |
6622 | name = h->root.root.string; | |
6623 | else | |
6624 | { | |
6625 | name = (bfd_elf_string_from_elf_section | |
6626 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
6627 | if (name == NULL || *name == '\0') | |
6628 | name = bfd_section_name (input_bfd, sec); | |
6629 | } | |
f21f3fe0 | 6630 | |
ba93b8ac DJ |
6631 | if (r_symndx != 0 |
6632 | && r_type != R_ARM_NONE | |
6633 | && (h == NULL | |
6634 | || h->root.type == bfd_link_hash_defined | |
6635 | || h->root.type == bfd_link_hash_defweak) | |
6636 | && IS_ARM_TLS_RELOC (r_type) != (sym_type == STT_TLS)) | |
6637 | { | |
6638 | (*_bfd_error_handler) | |
6639 | ((sym_type == STT_TLS | |
6640 | ? _("%B(%A+0x%lx): %s used with TLS symbol %s") | |
6641 | : _("%B(%A+0x%lx): %s used with non-TLS symbol %s")), | |
6642 | input_bfd, | |
6643 | input_section, | |
6644 | (long) rel->r_offset, | |
6645 | howto->name, | |
6646 | name); | |
6647 | } | |
6648 | ||
252b5132 RH |
6649 | r = elf32_arm_final_link_relocate (howto, input_bfd, output_bfd, |
6650 | input_section, contents, rel, | |
6651 | relocation, info, sec, name, | |
6652 | (h ? ELF_ST_TYPE (h->type) : | |
0945cdfd | 6653 | ELF_ST_TYPE (sym->st_info)), h, |
f2a9dd69 | 6654 | &unresolved_reloc, &error_message); |
0945cdfd DJ |
6655 | |
6656 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections | |
6657 | because such sections are not SEC_ALLOC and thus ld.so will | |
6658 | not process them. */ | |
6659 | if (unresolved_reloc | |
6660 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
6661 | && h->def_dynamic)) | |
6662 | { | |
6663 | (*_bfd_error_handler) | |
843fe662 L |
6664 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
6665 | input_bfd, | |
6666 | input_section, | |
6667 | (long) rel->r_offset, | |
6668 | howto->name, | |
6669 | h->root.root.string); | |
0945cdfd DJ |
6670 | return FALSE; |
6671 | } | |
252b5132 RH |
6672 | |
6673 | if (r != bfd_reloc_ok) | |
6674 | { | |
252b5132 RH |
6675 | switch (r) |
6676 | { | |
6677 | case bfd_reloc_overflow: | |
cf919dfd PB |
6678 | /* If the overflowing reloc was to an undefined symbol, |
6679 | we have already printed one error message and there | |
6680 | is no point complaining again. */ | |
6681 | if ((! h || | |
6682 | h->root.type != bfd_link_hash_undefined) | |
6683 | && (!((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
6684 | (info, (h ? &h->root : NULL), name, howto->name, |
6685 | (bfd_vma) 0, input_bfd, input_section, | |
6686 | rel->r_offset)))) | |
b34976b6 | 6687 | return FALSE; |
252b5132 RH |
6688 | break; |
6689 | ||
6690 | case bfd_reloc_undefined: | |
6691 | if (!((*info->callbacks->undefined_symbol) | |
6692 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
6693 | rel->r_offset, TRUE))) |
6694 | return FALSE; | |
252b5132 RH |
6695 | break; |
6696 | ||
6697 | case bfd_reloc_outofrange: | |
f2a9dd69 | 6698 | error_message = _("out of range"); |
252b5132 RH |
6699 | goto common_error; |
6700 | ||
6701 | case bfd_reloc_notsupported: | |
f2a9dd69 | 6702 | error_message = _("unsupported relocation"); |
252b5132 RH |
6703 | goto common_error; |
6704 | ||
6705 | case bfd_reloc_dangerous: | |
f2a9dd69 | 6706 | /* error_message should already be set. */ |
252b5132 RH |
6707 | goto common_error; |
6708 | ||
6709 | default: | |
f2a9dd69 | 6710 | error_message = _("unknown error"); |
252b5132 RH |
6711 | /* fall through */ |
6712 | ||
6713 | common_error: | |
f2a9dd69 DJ |
6714 | BFD_ASSERT (error_message != NULL); |
6715 | if (!((*info->callbacks->reloc_dangerous) | |
6716 | (info, error_message, input_bfd, input_section, | |
252b5132 | 6717 | rel->r_offset))) |
b34976b6 | 6718 | return FALSE; |
252b5132 RH |
6719 | break; |
6720 | } | |
6721 | } | |
6722 | } | |
6723 | ||
b34976b6 | 6724 | return TRUE; |
252b5132 RH |
6725 | } |
6726 | ||
ee065d83 PB |
6727 | /* Allocate/find an object attribute. */ |
6728 | static aeabi_attribute * | |
6729 | elf32_arm_new_eabi_attr (bfd *abfd, int tag) | |
6730 | { | |
6731 | aeabi_attribute *attr; | |
6732 | aeabi_attribute_list *list; | |
6733 | aeabi_attribute_list *p; | |
6734 | aeabi_attribute_list **lastp; | |
6735 | ||
6736 | ||
6737 | if (tag < NUM_KNOWN_ATTRIBUTES) | |
6738 | { | |
6739 | /* Knwon tags are preallocated. */ | |
6740 | attr = &elf32_arm_tdata (abfd)->known_eabi_attributes[tag]; | |
6741 | } | |
6742 | else | |
6743 | { | |
6744 | /* Create a new tag. */ | |
6745 | list = (aeabi_attribute_list *) | |
6746 | bfd_alloc (abfd, sizeof (aeabi_attribute_list)); | |
6747 | memset (list, 0, sizeof (aeabi_attribute_list)); | |
6748 | list->tag = tag; | |
6749 | /* Keep the tag list in order. */ | |
6750 | lastp = &elf32_arm_tdata (abfd)->other_eabi_attributes; | |
6751 | for (p = *lastp; p; p = p->next) | |
6752 | { | |
6753 | if (tag < p->tag) | |
6754 | break; | |
6755 | lastp = &p->next; | |
6756 | } | |
6757 | list->next = *lastp; | |
6758 | *lastp = list; | |
6759 | attr = &list->attr; | |
6760 | } | |
6761 | ||
6762 | return attr; | |
6763 | } | |
6764 | ||
39b41c9c PB |
6765 | int |
6766 | elf32_arm_get_eabi_attr_int (bfd *abfd, int tag) | |
6767 | { | |
6768 | aeabi_attribute_list *p; | |
6769 | ||
6770 | if (tag < NUM_KNOWN_ATTRIBUTES) | |
6771 | { | |
6772 | /* Knwon tags are preallocated. */ | |
6773 | return elf32_arm_tdata (abfd)->known_eabi_attributes[tag].i; | |
6774 | } | |
6775 | else | |
6776 | { | |
6777 | for (p = elf32_arm_tdata (abfd)->other_eabi_attributes; | |
6778 | p; | |
6779 | p = p->next) | |
6780 | { | |
6781 | if (tag == p->tag) | |
6782 | return p->attr.i; | |
6783 | if (tag < p->tag) | |
6784 | break; | |
6785 | } | |
6786 | return 0; | |
6787 | } | |
6788 | } | |
6789 | ||
ee065d83 PB |
6790 | void |
6791 | elf32_arm_add_eabi_attr_int (bfd *abfd, int tag, unsigned int i) | |
6792 | { | |
6793 | aeabi_attribute *attr; | |
6794 | ||
6795 | attr = elf32_arm_new_eabi_attr (abfd, tag); | |
6796 | attr->type = 1; | |
6797 | attr->i = i; | |
6798 | } | |
6799 | ||
6800 | static char * | |
6801 | attr_strdup (bfd *abfd, const char * s) | |
6802 | { | |
6803 | char * p; | |
6804 | int len; | |
6805 | ||
6806 | len = strlen (s) + 1; | |
6807 | p = (char *)bfd_alloc(abfd, len); | |
6808 | return memcpy (p, s, len); | |
6809 | } | |
6810 | ||
6811 | void | |
6812 | elf32_arm_add_eabi_attr_string (bfd *abfd, int tag, const char *s) | |
6813 | { | |
6814 | aeabi_attribute *attr; | |
6815 | ||
6816 | attr = elf32_arm_new_eabi_attr (abfd, tag); | |
6817 | attr->type = 2; | |
6818 | attr->s = attr_strdup (abfd, s); | |
6819 | } | |
6820 | ||
6821 | void | |
6822 | elf32_arm_add_eabi_attr_compat (bfd *abfd, unsigned int i, const char *s) | |
6823 | { | |
6824 | aeabi_attribute_list *list; | |
6825 | aeabi_attribute_list *p; | |
6826 | aeabi_attribute_list **lastp; | |
6827 | ||
6828 | list = (aeabi_attribute_list *) | |
6829 | bfd_alloc (abfd, sizeof (aeabi_attribute_list)); | |
6830 | memset (list, 0, sizeof (aeabi_attribute_list)); | |
6831 | list->tag = Tag_compatibility; | |
6832 | list->attr.type = 3; | |
6833 | list->attr.i = i; | |
6834 | list->attr.s = attr_strdup (abfd, s); | |
6835 | ||
6836 | lastp = &elf32_arm_tdata (abfd)->other_eabi_attributes; | |
6837 | for (p = *lastp; p; p = p->next) | |
6838 | { | |
6839 | int cmp; | |
6840 | if (p->tag != Tag_compatibility) | |
6841 | break; | |
6842 | cmp = strcmp(s, p->attr.s); | |
6843 | if (cmp < 0 || (cmp == 0 && i < p->attr.i)) | |
6844 | break; | |
6845 | lastp = &p->next; | |
6846 | } | |
6847 | list->next = *lastp; | |
6848 | *lastp = list; | |
6849 | } | |
6850 | ||
c178919b NC |
6851 | /* Set the right machine number. */ |
6852 | ||
6853 | static bfd_boolean | |
57e8b36a | 6854 | elf32_arm_object_p (bfd *abfd) |
c178919b | 6855 | { |
5a6c6817 | 6856 | unsigned int mach; |
57e8b36a | 6857 | |
5a6c6817 | 6858 | mach = bfd_arm_get_mach_from_notes (abfd, ARM_NOTE_SECTION); |
c178919b | 6859 | |
5a6c6817 NC |
6860 | if (mach != bfd_mach_arm_unknown) |
6861 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach); | |
6862 | ||
6863 | else if (elf_elfheader (abfd)->e_flags & EF_ARM_MAVERICK_FLOAT) | |
6864 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_ep9312); | |
e16bb312 | 6865 | |
e16bb312 | 6866 | else |
5a6c6817 | 6867 | bfd_default_set_arch_mach (abfd, bfd_arch_arm, mach); |
c178919b NC |
6868 | |
6869 | return TRUE; | |
6870 | } | |
6871 | ||
fc830a83 | 6872 | /* Function to keep ARM specific flags in the ELF header. */ |
3c9458e9 | 6873 | |
b34976b6 | 6874 | static bfd_boolean |
57e8b36a | 6875 | elf32_arm_set_private_flags (bfd *abfd, flagword flags) |
252b5132 RH |
6876 | { |
6877 | if (elf_flags_init (abfd) | |
6878 | && elf_elfheader (abfd)->e_flags != flags) | |
6879 | { | |
fc830a83 NC |
6880 | if (EF_ARM_EABI_VERSION (flags) == EF_ARM_EABI_UNKNOWN) |
6881 | { | |
fd2ec330 | 6882 | if (flags & EF_ARM_INTERWORK) |
d003868e AM |
6883 | (*_bfd_error_handler) |
6884 | (_("Warning: Not setting interworking flag of %B since it has already been specified as non-interworking"), | |
6885 | abfd); | |
fc830a83 | 6886 | else |
d003868e AM |
6887 | _bfd_error_handler |
6888 | (_("Warning: Clearing the interworking flag of %B due to outside request"), | |
6889 | abfd); | |
fc830a83 | 6890 | } |
252b5132 RH |
6891 | } |
6892 | else | |
6893 | { | |
6894 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 | 6895 | elf_flags_init (abfd) = TRUE; |
252b5132 RH |
6896 | } |
6897 | ||
b34976b6 | 6898 | return TRUE; |
252b5132 RH |
6899 | } |
6900 | ||
ee065d83 PB |
6901 | /* Copy the eabi object attribute from IBFD to OBFD. */ |
6902 | static void | |
6903 | copy_eabi_attributes (bfd *ibfd, bfd *obfd) | |
6904 | { | |
6905 | aeabi_attribute *in_attr; | |
6906 | aeabi_attribute *out_attr; | |
6907 | aeabi_attribute_list *list; | |
6908 | int i; | |
6909 | ||
004ae526 PB |
6910 | in_attr = &elf32_arm_tdata (ibfd)->known_eabi_attributes[4]; |
6911 | out_attr = &elf32_arm_tdata (obfd)->known_eabi_attributes[4]; | |
ee065d83 PB |
6912 | for (i = 4; i < NUM_KNOWN_ATTRIBUTES; i++) |
6913 | { | |
6914 | out_attr->i = in_attr->i; | |
6915 | if (in_attr->s && *in_attr->s) | |
6916 | out_attr->s = attr_strdup (obfd, in_attr->s); | |
6917 | in_attr++; | |
6918 | out_attr++; | |
6919 | } | |
6920 | ||
6921 | for (list = elf32_arm_tdata (ibfd)->other_eabi_attributes; | |
6922 | list; | |
6923 | list = list->next) | |
6924 | { | |
6925 | in_attr = &list->attr; | |
6926 | switch (in_attr->type) | |
6927 | { | |
6928 | case 1: | |
6929 | elf32_arm_add_eabi_attr_int (obfd, list->tag, in_attr->i); | |
6930 | break; | |
6931 | case 2: | |
6932 | elf32_arm_add_eabi_attr_string (obfd, list->tag, in_attr->s); | |
6933 | break; | |
6934 | case 3: | |
6935 | elf32_arm_add_eabi_attr_compat (obfd, in_attr->i, in_attr->s); | |
6936 | break; | |
6937 | default: | |
6938 | abort(); | |
6939 | } | |
6940 | } | |
6941 | } | |
6942 | ||
6943 | ||
fc830a83 | 6944 | /* Copy backend specific data from one object module to another. */ |
9b485d32 | 6945 | |
b34976b6 | 6946 | static bfd_boolean |
57e8b36a | 6947 | elf32_arm_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
252b5132 RH |
6948 | { |
6949 | flagword in_flags; | |
6950 | flagword out_flags; | |
6951 | ||
fc830a83 | 6952 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
252b5132 | 6953 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
b34976b6 | 6954 | return TRUE; |
252b5132 | 6955 | |
fc830a83 | 6956 | in_flags = elf_elfheader (ibfd)->e_flags; |
252b5132 RH |
6957 | out_flags = elf_elfheader (obfd)->e_flags; |
6958 | ||
fc830a83 NC |
6959 | if (elf_flags_init (obfd) |
6960 | && EF_ARM_EABI_VERSION (out_flags) == EF_ARM_EABI_UNKNOWN | |
6961 | && in_flags != out_flags) | |
252b5132 | 6962 | { |
252b5132 | 6963 | /* Cannot mix APCS26 and APCS32 code. */ |
fd2ec330 | 6964 | if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26)) |
b34976b6 | 6965 | return FALSE; |
252b5132 RH |
6966 | |
6967 | /* Cannot mix float APCS and non-float APCS code. */ | |
fd2ec330 | 6968 | if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT)) |
b34976b6 | 6969 | return FALSE; |
252b5132 RH |
6970 | |
6971 | /* If the src and dest have different interworking flags | |
6972 | then turn off the interworking bit. */ | |
fd2ec330 | 6973 | if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK)) |
252b5132 | 6974 | { |
fd2ec330 | 6975 | if (out_flags & EF_ARM_INTERWORK) |
d003868e AM |
6976 | _bfd_error_handler |
6977 | (_("Warning: Clearing the interworking flag of %B because non-interworking code in %B has been linked with it"), | |
6978 | obfd, ibfd); | |
252b5132 | 6979 | |
fd2ec330 | 6980 | in_flags &= ~EF_ARM_INTERWORK; |
252b5132 | 6981 | } |
1006ba19 PB |
6982 | |
6983 | /* Likewise for PIC, though don't warn for this case. */ | |
fd2ec330 PB |
6984 | if ((in_flags & EF_ARM_PIC) != (out_flags & EF_ARM_PIC)) |
6985 | in_flags &= ~EF_ARM_PIC; | |
252b5132 RH |
6986 | } |
6987 | ||
6988 | elf_elfheader (obfd)->e_flags = in_flags; | |
b34976b6 | 6989 | elf_flags_init (obfd) = TRUE; |
252b5132 | 6990 | |
94a3258f PB |
6991 | /* Also copy the EI_OSABI field. */ |
6992 | elf_elfheader (obfd)->e_ident[EI_OSABI] = | |
6993 | elf_elfheader (ibfd)->e_ident[EI_OSABI]; | |
6994 | ||
ee065d83 PB |
6995 | /* Copy EABI object attributes. */ |
6996 | copy_eabi_attributes (ibfd, obfd); | |
6997 | ||
6998 | return TRUE; | |
6999 | } | |
7000 | ||
7001 | /* Values for Tag_ABI_PCS_R9_use. */ | |
7002 | enum | |
7003 | { | |
7004 | AEABI_R9_V6, | |
7005 | AEABI_R9_SB, | |
7006 | AEABI_R9_TLS, | |
7007 | AEABI_R9_unused | |
7008 | }; | |
7009 | ||
7010 | /* Values for Tag_ABI_PCS_RW_data. */ | |
7011 | enum | |
7012 | { | |
7013 | AEABI_PCS_RW_data_absolute, | |
7014 | AEABI_PCS_RW_data_PCrel, | |
7015 | AEABI_PCS_RW_data_SBrel, | |
7016 | AEABI_PCS_RW_data_unused | |
7017 | }; | |
7018 | ||
7019 | /* Values for Tag_ABI_enum_size. */ | |
7020 | enum | |
7021 | { | |
7022 | AEABI_enum_unused, | |
7023 | AEABI_enum_short, | |
7024 | AEABI_enum_wide, | |
7025 | AEABI_enum_forced_wide | |
7026 | }; | |
7027 | ||
7028 | /* Merge EABI object attributes from IBFD into OBFD. Raise an error if there | |
7029 | are conflicting attributes. */ | |
7030 | static bfd_boolean | |
7031 | elf32_arm_merge_eabi_attributes (bfd *ibfd, bfd *obfd) | |
7032 | { | |
7033 | aeabi_attribute *in_attr; | |
7034 | aeabi_attribute *out_attr; | |
7035 | aeabi_attribute_list *in_list; | |
7036 | aeabi_attribute_list *out_list; | |
7037 | /* Some tags have 0 = don't care, 1 = strong requirement, | |
7038 | 2 = weak requirement. */ | |
7039 | static const int order_312[3] = {3, 1, 2}; | |
7040 | int i; | |
7041 | ||
004ae526 | 7042 | if (!elf32_arm_tdata (obfd)->known_eabi_attributes[0].i) |
ee065d83 PB |
7043 | { |
7044 | /* This is the first object. Copy the attributes. */ | |
7045 | copy_eabi_attributes (ibfd, obfd); | |
004ae526 PB |
7046 | |
7047 | /* Use the Tag_null value to indicate the attributes have been | |
7048 | initialized. */ | |
7049 | elf32_arm_tdata (obfd)->known_eabi_attributes[0].i = 1; | |
7050 | ||
ee065d83 PB |
7051 | return TRUE; |
7052 | } | |
7053 | ||
ee065d83 PB |
7054 | in_attr = elf32_arm_tdata (ibfd)->known_eabi_attributes; |
7055 | out_attr = elf32_arm_tdata (obfd)->known_eabi_attributes; | |
7056 | /* This needs to happen before Tag_ABI_FP_number_model is merged. */ | |
7057 | if (in_attr[Tag_ABI_VFP_args].i != out_attr[Tag_ABI_VFP_args].i) | |
7058 | { | |
7059 | /* Ignore mismatches if teh object doesn't use floating point. */ | |
7060 | if (out_attr[Tag_ABI_FP_number_model].i == 0) | |
7061 | out_attr[Tag_ABI_VFP_args].i = in_attr[Tag_ABI_VFP_args].i; | |
7062 | else if (in_attr[Tag_ABI_FP_number_model].i != 0) | |
7063 | { | |
7064 | _bfd_error_handler | |
7065 | (_("ERROR: %B uses VFP register arguments, %B does not"), | |
7066 | ibfd, obfd); | |
7067 | return FALSE; | |
7068 | } | |
7069 | } | |
7070 | ||
7071 | for (i = 4; i < NUM_KNOWN_ATTRIBUTES; i++) | |
7072 | { | |
7073 | /* Merge this attribute with existing attributes. */ | |
7074 | switch (i) | |
7075 | { | |
7076 | case Tag_CPU_raw_name: | |
7077 | case Tag_CPU_name: | |
004ae526 PB |
7078 | /* Use whichever has the greatest architecture requirements. We |
7079 | won't necessarily have both the above tags, so make sure input | |
7080 | name is non-NULL. */ | |
7081 | if (in_attr[Tag_CPU_arch].i > out_attr[Tag_CPU_arch].i | |
7082 | && in_attr[i].s) | |
ee065d83 PB |
7083 | out_attr[i].s = attr_strdup(obfd, in_attr[i].s); |
7084 | break; | |
7085 | ||
7086 | case Tag_ABI_optimization_goals: | |
7087 | case Tag_ABI_FP_optimization_goals: | |
7088 | /* Use the first value seen. */ | |
7089 | break; | |
7090 | ||
7091 | case Tag_CPU_arch: | |
7092 | case Tag_ARM_ISA_use: | |
7093 | case Tag_THUMB_ISA_use: | |
7094 | case Tag_VFP_arch: | |
7095 | case Tag_WMMX_arch: | |
7096 | case Tag_NEON_arch: | |
7097 | /* ??? Do NEON and WMMX conflict? */ | |
7098 | case Tag_ABI_FP_rounding: | |
7099 | case Tag_ABI_FP_denormal: | |
7100 | case Tag_ABI_FP_exceptions: | |
7101 | case Tag_ABI_FP_user_exceptions: | |
7102 | case Tag_ABI_FP_number_model: | |
7103 | case Tag_ABI_align8_preserved: | |
7104 | case Tag_ABI_HardFP_use: | |
7105 | /* Use the largest value specified. */ | |
7106 | if (in_attr[i].i > out_attr[i].i) | |
7107 | out_attr[i].i = in_attr[i].i; | |
7108 | break; | |
7109 | ||
7110 | case Tag_CPU_arch_profile: | |
7111 | /* Warn if conflicting architecture profiles used. */ | |
7112 | if (out_attr[i].i && in_attr[i].i && in_attr[i].i != out_attr[i].i) | |
7113 | { | |
7114 | _bfd_error_handler | |
7115 | (_("ERROR: %B: Conflicting architecture profiles %c/%c"), | |
7116 | ibfd, in_attr[i].i, out_attr[i].i); | |
7117 | return FALSE; | |
7118 | } | |
7119 | if (in_attr[i].i) | |
7120 | out_attr[i].i = in_attr[i].i; | |
7121 | break; | |
7122 | case Tag_PCS_config: | |
7123 | if (out_attr[i].i == 0) | |
7124 | out_attr[i].i = in_attr[i].i; | |
7125 | else if (in_attr[i].i != 0 && out_attr[i].i != 0) | |
7126 | { | |
7127 | /* It's sometimes ok to mix different configs, so this is only | |
7128 | a warning. */ | |
7129 | _bfd_error_handler | |
7130 | (_("Warning: %B: Conflicting platform configuration"), ibfd); | |
7131 | } | |
7132 | break; | |
7133 | case Tag_ABI_PCS_R9_use: | |
004ae526 PB |
7134 | if (in_attr[i].i != out_attr[i].i |
7135 | && out_attr[i].i != AEABI_R9_unused | |
ee065d83 PB |
7136 | && in_attr[i].i != AEABI_R9_unused) |
7137 | { | |
7138 | _bfd_error_handler | |
7139 | (_("ERROR: %B: Conflicting use of R9"), ibfd); | |
7140 | return FALSE; | |
7141 | } | |
7142 | if (out_attr[i].i == AEABI_R9_unused) | |
7143 | out_attr[i].i = in_attr[i].i; | |
7144 | break; | |
7145 | case Tag_ABI_PCS_RW_data: | |
7146 | if (in_attr[i].i == AEABI_PCS_RW_data_SBrel | |
7147 | && out_attr[Tag_ABI_PCS_R9_use].i != AEABI_R9_SB | |
7148 | && out_attr[Tag_ABI_PCS_R9_use].i != AEABI_R9_unused) | |
7149 | { | |
7150 | _bfd_error_handler | |
7151 | (_("ERROR: %B: SB relative addressing conflicts with use of R9"), | |
7152 | ibfd); | |
7153 | return FALSE; | |
7154 | } | |
7155 | /* Use the smallest value specified. */ | |
7156 | if (in_attr[i].i < out_attr[i].i) | |
7157 | out_attr[i].i = in_attr[i].i; | |
7158 | break; | |
7159 | case Tag_ABI_PCS_RO_data: | |
7160 | /* Use the smallest value specified. */ | |
7161 | if (in_attr[i].i < out_attr[i].i) | |
7162 | out_attr[i].i = in_attr[i].i; | |
7163 | break; | |
7164 | case Tag_ABI_PCS_GOT_use: | |
7165 | if (in_attr[i].i > 2 || out_attr[i].i > 2 | |
7166 | || order_312[in_attr[i].i] < order_312[out_attr[i].i]) | |
7167 | out_attr[i].i = in_attr[i].i; | |
7168 | break; | |
7169 | case Tag_ABI_PCS_wchar_t: | |
7170 | if (out_attr[i].i && in_attr[i].i && out_attr[i].i != in_attr[i].i) | |
7171 | { | |
7172 | _bfd_error_handler | |
7173 | (_("ERROR: %B: Conflicting definitions of wchar_t"), ibfd); | |
7174 | return FALSE; | |
7175 | } | |
7176 | if (in_attr[i].i) | |
7177 | out_attr[i].i = in_attr[i].i; | |
7178 | break; | |
7179 | case Tag_ABI_align8_needed: | |
7180 | /* ??? Check against Tag_ABI_align8_preserved. */ | |
7181 | if (in_attr[i].i > 2 || out_attr[i].i > 2 | |
7182 | || order_312[in_attr[i].i] < order_312[out_attr[i].i]) | |
7183 | out_attr[i].i = in_attr[i].i; | |
7184 | break; | |
7185 | case Tag_ABI_enum_size: | |
7186 | if (in_attr[i].i != AEABI_enum_unused) | |
7187 | { | |
7188 | if (out_attr[i].i == AEABI_enum_unused | |
7189 | || out_attr[i].i == AEABI_enum_forced_wide) | |
7190 | { | |
7191 | /* The existing object is compatible with anything. | |
7192 | Use whatever requirements the new object has. */ | |
7193 | out_attr[i].i = in_attr[i].i; | |
7194 | } | |
7195 | else if (in_attr[i].i != AEABI_enum_forced_wide | |
7196 | && out_attr[i].i != in_attr[i].i) | |
7197 | { | |
7198 | _bfd_error_handler | |
7199 | (_("ERROR: %B: Conflicting enum sizes"), ibfd); | |
7200 | } | |
7201 | } | |
7202 | break; | |
7203 | case Tag_ABI_VFP_args: | |
7204 | /* Aready done. */ | |
7205 | break; | |
7206 | case Tag_ABI_WMMX_args: | |
7207 | if (in_attr[i].i != out_attr[i].i) | |
7208 | { | |
7209 | _bfd_error_handler | |
7210 | (_("ERROR: %B uses iWMMXt register arguments, %B does not"), | |
7211 | ibfd, obfd); | |
7212 | return FALSE; | |
7213 | } | |
7214 | break; | |
7215 | default: /* All known attributes should be explicitly covered. */ | |
7216 | abort (); | |
7217 | } | |
7218 | } | |
7219 | ||
7220 | in_list = elf32_arm_tdata (ibfd)->other_eabi_attributes; | |
7221 | out_list = elf32_arm_tdata (ibfd)->other_eabi_attributes; | |
7222 | while (in_list && in_list->tag == Tag_compatibility) | |
7223 | { | |
7224 | in_attr = &in_list->attr; | |
7225 | if (in_attr->i == 0) | |
7226 | continue; | |
7227 | if (in_attr->i == 1) | |
7228 | { | |
7229 | _bfd_error_handler | |
7230 | (_("ERROR: %B: Must be processed by '%s' toolchain"), | |
7231 | ibfd, in_attr->s); | |
7232 | return FALSE; | |
7233 | } | |
7234 | if (!out_list || out_list->tag != Tag_compatibility | |
7235 | || strcmp (in_attr->s, out_list->attr.s) != 0) | |
7236 | { | |
7237 | /* Add this compatibility tag to the output. */ | |
7238 | elf32_arm_add_eabi_attr_compat (obfd, in_attr->i, in_attr->s); | |
7239 | continue; | |
7240 | } | |
7241 | out_attr = &out_list->attr; | |
7242 | /* Check all the input tags with the same identifier. */ | |
7243 | for (;;) | |
7244 | { | |
7245 | if (out_list->tag != Tag_compatibility | |
7246 | || in_attr->i != out_attr->i | |
7247 | || strcmp (in_attr->s, out_attr->s) != 0) | |
7248 | { | |
7249 | _bfd_error_handler | |
7250 | (_("ERROR: %B: Incompatible object tag '%s':%d"), | |
7251 | ibfd, in_attr->s, in_attr->i); | |
7252 | return FALSE; | |
7253 | } | |
7254 | in_list = in_list->next; | |
7255 | if (in_list->tag != Tag_compatibility | |
7256 | || strcmp (in_attr->s, in_list->attr.s) != 0) | |
7257 | break; | |
7258 | in_attr = &in_list->attr; | |
7259 | out_list = out_list->next; | |
7260 | if (out_list) | |
7261 | out_attr = &out_list->attr; | |
7262 | } | |
7263 | ||
7264 | /* Check the output doesn't have extra tags with this identifier. */ | |
7265 | if (out_list && out_list->tag == Tag_compatibility | |
7266 | && strcmp (in_attr->s, out_list->attr.s) == 0) | |
7267 | { | |
7268 | _bfd_error_handler | |
7269 | (_("ERROR: %B: Incompatible object tag '%s':%d"), | |
7270 | ibfd, in_attr->s, out_list->attr.i); | |
7271 | return FALSE; | |
7272 | } | |
7273 | } | |
7274 | ||
7275 | for (; in_list; in_list = in_list->next) | |
7276 | { | |
7277 | if ((in_list->tag & 128) < 64) | |
eb111b1f BE |
7278 | { |
7279 | _bfd_error_handler | |
7280 | (_("Warning: %B: Unknown EABI object attribute %d"), | |
7281 | ibfd, in_list->tag); | |
7282 | break; | |
7283 | } | |
ee065d83 | 7284 | } |
b34976b6 | 7285 | return TRUE; |
252b5132 RH |
7286 | } |
7287 | ||
3a4a14e9 PB |
7288 | |
7289 | /* Return TRUE if the two EABI versions are incompatible. */ | |
7290 | ||
7291 | static bfd_boolean | |
7292 | elf32_arm_versions_compatible (unsigned iver, unsigned over) | |
7293 | { | |
7294 | /* v4 and v5 are the same spec before and after it was released, | |
7295 | so allow mixing them. */ | |
7296 | if ((iver == EF_ARM_EABI_VER4 && over == EF_ARM_EABI_VER5) | |
7297 | || (iver == EF_ARM_EABI_VER5 && over == EF_ARM_EABI_VER4)) | |
7298 | return TRUE; | |
7299 | ||
7300 | return (iver == over); | |
7301 | } | |
7302 | ||
252b5132 RH |
7303 | /* Merge backend specific data from an object file to the output |
7304 | object file when linking. */ | |
9b485d32 | 7305 | |
b34976b6 | 7306 | static bfd_boolean |
57e8b36a | 7307 | elf32_arm_merge_private_bfd_data (bfd * ibfd, bfd * obfd) |
252b5132 RH |
7308 | { |
7309 | flagword out_flags; | |
7310 | flagword in_flags; | |
b34976b6 | 7311 | bfd_boolean flags_compatible = TRUE; |
cf919dfd | 7312 | asection *sec; |
252b5132 | 7313 | |
9b485d32 | 7314 | /* Check if we have the same endianess. */ |
82e51918 | 7315 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
b34976b6 | 7316 | return FALSE; |
1fe494a5 | 7317 | |
252b5132 RH |
7318 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
7319 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 7320 | return TRUE; |
252b5132 | 7321 | |
ee065d83 PB |
7322 | if (!elf32_arm_merge_eabi_attributes (ibfd, obfd)) |
7323 | return FALSE; | |
7324 | ||
252b5132 RH |
7325 | /* The input BFD must have had its flags initialised. */ |
7326 | /* The following seems bogus to me -- The flags are initialized in | |
7327 | the assembler but I don't think an elf_flags_init field is | |
9b485d32 | 7328 | written into the object. */ |
252b5132 RH |
7329 | /* BFD_ASSERT (elf_flags_init (ibfd)); */ |
7330 | ||
7331 | in_flags = elf_elfheader (ibfd)->e_flags; | |
7332 | out_flags = elf_elfheader (obfd)->e_flags; | |
7333 | ||
7334 | if (!elf_flags_init (obfd)) | |
7335 | { | |
fe077fa6 NC |
7336 | /* If the input is the default architecture and had the default |
7337 | flags then do not bother setting the flags for the output | |
7338 | architecture, instead allow future merges to do this. If no | |
7339 | future merges ever set these flags then they will retain their | |
7340 | uninitialised values, which surprise surprise, correspond | |
252b5132 | 7341 | to the default values. */ |
fe077fa6 NC |
7342 | if (bfd_get_arch_info (ibfd)->the_default |
7343 | && elf_elfheader (ibfd)->e_flags == 0) | |
b34976b6 | 7344 | return TRUE; |
252b5132 | 7345 | |
b34976b6 | 7346 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
7347 | elf_elfheader (obfd)->e_flags = in_flags; |
7348 | ||
7349 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
7350 | && bfd_get_arch_info (obfd)->the_default) | |
7351 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); | |
7352 | ||
b34976b6 | 7353 | return TRUE; |
252b5132 RH |
7354 | } |
7355 | ||
5a6c6817 NC |
7356 | /* Determine what should happen if the input ARM architecture |
7357 | does not match the output ARM architecture. */ | |
7358 | if (! bfd_arm_merge_machines (ibfd, obfd)) | |
7359 | return FALSE; | |
e16bb312 | 7360 | |
1006ba19 | 7361 | /* Identical flags must be compatible. */ |
252b5132 | 7362 | if (in_flags == out_flags) |
b34976b6 | 7363 | return TRUE; |
252b5132 | 7364 | |
35a0f415 DJ |
7365 | /* Check to see if the input BFD actually contains any sections. If |
7366 | not, its flags may not have been initialised either, but it | |
8e3de13a | 7367 | cannot actually cause any incompatiblity. Do not short-circuit |
35a0f415 | 7368 | dynamic objects; their section list may be emptied by |
d1f161ea | 7369 | elf_link_add_object_symbols. |
35a0f415 | 7370 | |
d1f161ea NC |
7371 | Also check to see if there are no code sections in the input. |
7372 | In this case there is no need to check for code specific flags. | |
7373 | XXX - do we need to worry about floating-point format compatability | |
7374 | in data sections ? */ | |
35a0f415 | 7375 | if (!(ibfd->flags & DYNAMIC)) |
cf919dfd | 7376 | { |
35a0f415 | 7377 | bfd_boolean null_input_bfd = TRUE; |
d1f161ea | 7378 | bfd_boolean only_data_sections = TRUE; |
35a0f415 DJ |
7379 | |
7380 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
cf919dfd | 7381 | { |
35a0f415 DJ |
7382 | /* Ignore synthetic glue sections. */ |
7383 | if (strcmp (sec->name, ".glue_7") | |
7384 | && strcmp (sec->name, ".glue_7t")) | |
7385 | { | |
d1f161ea NC |
7386 | if ((bfd_get_section_flags (ibfd, sec) |
7387 | & (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
7388 | == (SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS)) | |
7389 | only_data_sections = FALSE; | |
7390 | ||
35a0f415 DJ |
7391 | null_input_bfd = FALSE; |
7392 | break; | |
7393 | } | |
cf919dfd | 7394 | } |
d1f161ea NC |
7395 | |
7396 | if (null_input_bfd || only_data_sections) | |
35a0f415 | 7397 | return TRUE; |
cf919dfd | 7398 | } |
cf919dfd | 7399 | |
252b5132 | 7400 | /* Complain about various flag mismatches. */ |
3a4a14e9 PB |
7401 | if (!elf32_arm_versions_compatible (EF_ARM_EABI_VERSION (in_flags), |
7402 | EF_ARM_EABI_VERSION (out_flags))) | |
fc830a83 | 7403 | { |
d003868e | 7404 | _bfd_error_handler |
3656d5e3 | 7405 | (_("ERROR: Source object %B has EABI version %d, but target %B has EABI version %d"), |
d003868e AM |
7406 | ibfd, obfd, |
7407 | (in_flags & EF_ARM_EABIMASK) >> 24, | |
7408 | (out_flags & EF_ARM_EABIMASK) >> 24); | |
b34976b6 | 7409 | return FALSE; |
fc830a83 | 7410 | } |
252b5132 | 7411 | |
1006ba19 | 7412 | /* Not sure what needs to be checked for EABI versions >= 1. */ |
00a97672 RS |
7413 | /* VxWorks libraries do not use these flags. */ |
7414 | if (get_elf_backend_data (obfd) != &elf32_arm_vxworks_bed | |
7415 | && get_elf_backend_data (ibfd) != &elf32_arm_vxworks_bed | |
7416 | && EF_ARM_EABI_VERSION (in_flags) == EF_ARM_EABI_UNKNOWN) | |
1006ba19 | 7417 | { |
fd2ec330 | 7418 | if ((in_flags & EF_ARM_APCS_26) != (out_flags & EF_ARM_APCS_26)) |
1006ba19 | 7419 | { |
d003868e AM |
7420 | _bfd_error_handler |
7421 | (_("ERROR: %B is compiled for APCS-%d, whereas target %B uses APCS-%d"), | |
7422 | ibfd, obfd, | |
7423 | in_flags & EF_ARM_APCS_26 ? 26 : 32, | |
7424 | out_flags & EF_ARM_APCS_26 ? 26 : 32); | |
b34976b6 | 7425 | flags_compatible = FALSE; |
1006ba19 | 7426 | } |
252b5132 | 7427 | |
fd2ec330 | 7428 | if ((in_flags & EF_ARM_APCS_FLOAT) != (out_flags & EF_ARM_APCS_FLOAT)) |
1006ba19 | 7429 | { |
5eefb65f | 7430 | if (in_flags & EF_ARM_APCS_FLOAT) |
d003868e AM |
7431 | _bfd_error_handler |
7432 | (_("ERROR: %B passes floats in float registers, whereas %B passes them in integer registers"), | |
7433 | ibfd, obfd); | |
5eefb65f | 7434 | else |
d003868e AM |
7435 | _bfd_error_handler |
7436 | (_("ERROR: %B passes floats in integer registers, whereas %B passes them in float registers"), | |
7437 | ibfd, obfd); | |
63b0f745 | 7438 | |
b34976b6 | 7439 | flags_compatible = FALSE; |
1006ba19 | 7440 | } |
252b5132 | 7441 | |
96a846ea | 7442 | if ((in_flags & EF_ARM_VFP_FLOAT) != (out_flags & EF_ARM_VFP_FLOAT)) |
1006ba19 | 7443 | { |
96a846ea | 7444 | if (in_flags & EF_ARM_VFP_FLOAT) |
d003868e AM |
7445 | _bfd_error_handler |
7446 | (_("ERROR: %B uses VFP instructions, whereas %B does not"), | |
7447 | ibfd, obfd); | |
5eefb65f | 7448 | else |
d003868e AM |
7449 | _bfd_error_handler |
7450 | (_("ERROR: %B uses FPA instructions, whereas %B does not"), | |
7451 | ibfd, obfd); | |
fde78edd NC |
7452 | |
7453 | flags_compatible = FALSE; | |
7454 | } | |
7455 | ||
7456 | if ((in_flags & EF_ARM_MAVERICK_FLOAT) != (out_flags & EF_ARM_MAVERICK_FLOAT)) | |
7457 | { | |
7458 | if (in_flags & EF_ARM_MAVERICK_FLOAT) | |
d003868e AM |
7459 | _bfd_error_handler |
7460 | (_("ERROR: %B uses Maverick instructions, whereas %B does not"), | |
7461 | ibfd, obfd); | |
fde78edd | 7462 | else |
d003868e AM |
7463 | _bfd_error_handler |
7464 | (_("ERROR: %B does not use Maverick instructions, whereas %B does"), | |
7465 | ibfd, obfd); | |
63b0f745 | 7466 | |
b34976b6 | 7467 | flags_compatible = FALSE; |
1006ba19 | 7468 | } |
96a846ea RE |
7469 | |
7470 | #ifdef EF_ARM_SOFT_FLOAT | |
7471 | if ((in_flags & EF_ARM_SOFT_FLOAT) != (out_flags & EF_ARM_SOFT_FLOAT)) | |
7472 | { | |
7473 | /* We can allow interworking between code that is VFP format | |
7474 | layout, and uses either soft float or integer regs for | |
7475 | passing floating point arguments and results. We already | |
7476 | know that the APCS_FLOAT flags match; similarly for VFP | |
7477 | flags. */ | |
7478 | if ((in_flags & EF_ARM_APCS_FLOAT) != 0 | |
7479 | || (in_flags & EF_ARM_VFP_FLOAT) == 0) | |
7480 | { | |
7481 | if (in_flags & EF_ARM_SOFT_FLOAT) | |
d003868e AM |
7482 | _bfd_error_handler |
7483 | (_("ERROR: %B uses software FP, whereas %B uses hardware FP"), | |
7484 | ibfd, obfd); | |
96a846ea | 7485 | else |
d003868e AM |
7486 | _bfd_error_handler |
7487 | (_("ERROR: %B uses hardware FP, whereas %B uses software FP"), | |
7488 | ibfd, obfd); | |
96a846ea | 7489 | |
b34976b6 | 7490 | flags_compatible = FALSE; |
96a846ea RE |
7491 | } |
7492 | } | |
ee43f35e | 7493 | #endif |
252b5132 | 7494 | |
1006ba19 | 7495 | /* Interworking mismatch is only a warning. */ |
fd2ec330 | 7496 | if ((in_flags & EF_ARM_INTERWORK) != (out_flags & EF_ARM_INTERWORK)) |
8f615d07 | 7497 | { |
e3c8793a NC |
7498 | if (in_flags & EF_ARM_INTERWORK) |
7499 | { | |
d003868e AM |
7500 | _bfd_error_handler |
7501 | (_("Warning: %B supports interworking, whereas %B does not"), | |
7502 | ibfd, obfd); | |
e3c8793a NC |
7503 | } |
7504 | else | |
7505 | { | |
d003868e AM |
7506 | _bfd_error_handler |
7507 | (_("Warning: %B does not support interworking, whereas %B does"), | |
7508 | ibfd, obfd); | |
e3c8793a | 7509 | } |
8f615d07 | 7510 | } |
252b5132 | 7511 | } |
63b0f745 | 7512 | |
1006ba19 | 7513 | return flags_compatible; |
252b5132 RH |
7514 | } |
7515 | ||
9b485d32 NC |
7516 | /* Display the flags field. */ |
7517 | ||
b34976b6 | 7518 | static bfd_boolean |
57e8b36a | 7519 | elf32_arm_print_private_bfd_data (bfd *abfd, void * ptr) |
252b5132 | 7520 | { |
fc830a83 NC |
7521 | FILE * file = (FILE *) ptr; |
7522 | unsigned long flags; | |
252b5132 RH |
7523 | |
7524 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
7525 | ||
7526 | /* Print normal ELF private data. */ | |
7527 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
7528 | ||
fc830a83 | 7529 | flags = elf_elfheader (abfd)->e_flags; |
9b485d32 NC |
7530 | /* Ignore init flag - it may not be set, despite the flags field |
7531 | containing valid data. */ | |
252b5132 RH |
7532 | |
7533 | /* xgettext:c-format */ | |
9b485d32 | 7534 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); |
252b5132 | 7535 | |
fc830a83 NC |
7536 | switch (EF_ARM_EABI_VERSION (flags)) |
7537 | { | |
7538 | case EF_ARM_EABI_UNKNOWN: | |
4cc11e76 | 7539 | /* The following flag bits are GNU extensions and not part of the |
fc830a83 NC |
7540 | official ARM ELF extended ABI. Hence they are only decoded if |
7541 | the EABI version is not set. */ | |
fd2ec330 | 7542 | if (flags & EF_ARM_INTERWORK) |
9b485d32 | 7543 | fprintf (file, _(" [interworking enabled]")); |
9a5aca8c | 7544 | |
fd2ec330 | 7545 | if (flags & EF_ARM_APCS_26) |
6c571f00 | 7546 | fprintf (file, " [APCS-26]"); |
fc830a83 | 7547 | else |
6c571f00 | 7548 | fprintf (file, " [APCS-32]"); |
9a5aca8c | 7549 | |
96a846ea RE |
7550 | if (flags & EF_ARM_VFP_FLOAT) |
7551 | fprintf (file, _(" [VFP float format]")); | |
fde78edd NC |
7552 | else if (flags & EF_ARM_MAVERICK_FLOAT) |
7553 | fprintf (file, _(" [Maverick float format]")); | |
96a846ea RE |
7554 | else |
7555 | fprintf (file, _(" [FPA float format]")); | |
7556 | ||
fd2ec330 | 7557 | if (flags & EF_ARM_APCS_FLOAT) |
9b485d32 | 7558 | fprintf (file, _(" [floats passed in float registers]")); |
9a5aca8c | 7559 | |
fd2ec330 | 7560 | if (flags & EF_ARM_PIC) |
9b485d32 | 7561 | fprintf (file, _(" [position independent]")); |
fc830a83 | 7562 | |
fd2ec330 | 7563 | if (flags & EF_ARM_NEW_ABI) |
9b485d32 | 7564 | fprintf (file, _(" [new ABI]")); |
9a5aca8c | 7565 | |
fd2ec330 | 7566 | if (flags & EF_ARM_OLD_ABI) |
9b485d32 | 7567 | fprintf (file, _(" [old ABI]")); |
9a5aca8c | 7568 | |
fd2ec330 | 7569 | if (flags & EF_ARM_SOFT_FLOAT) |
9b485d32 | 7570 | fprintf (file, _(" [software FP]")); |
9a5aca8c | 7571 | |
96a846ea RE |
7572 | flags &= ~(EF_ARM_INTERWORK | EF_ARM_APCS_26 | EF_ARM_APCS_FLOAT |
7573 | | EF_ARM_PIC | EF_ARM_NEW_ABI | EF_ARM_OLD_ABI | |
fde78edd NC |
7574 | | EF_ARM_SOFT_FLOAT | EF_ARM_VFP_FLOAT |
7575 | | EF_ARM_MAVERICK_FLOAT); | |
fc830a83 | 7576 | break; |
9a5aca8c | 7577 | |
fc830a83 | 7578 | case EF_ARM_EABI_VER1: |
9b485d32 | 7579 | fprintf (file, _(" [Version1 EABI]")); |
9a5aca8c | 7580 | |
fc830a83 | 7581 | if (flags & EF_ARM_SYMSARESORTED) |
9b485d32 | 7582 | fprintf (file, _(" [sorted symbol table]")); |
fc830a83 | 7583 | else |
9b485d32 | 7584 | fprintf (file, _(" [unsorted symbol table]")); |
9a5aca8c | 7585 | |
fc830a83 NC |
7586 | flags &= ~ EF_ARM_SYMSARESORTED; |
7587 | break; | |
9a5aca8c | 7588 | |
fd2ec330 PB |
7589 | case EF_ARM_EABI_VER2: |
7590 | fprintf (file, _(" [Version2 EABI]")); | |
7591 | ||
7592 | if (flags & EF_ARM_SYMSARESORTED) | |
7593 | fprintf (file, _(" [sorted symbol table]")); | |
7594 | else | |
7595 | fprintf (file, _(" [unsorted symbol table]")); | |
7596 | ||
7597 | if (flags & EF_ARM_DYNSYMSUSESEGIDX) | |
7598 | fprintf (file, _(" [dynamic symbols use segment index]")); | |
7599 | ||
7600 | if (flags & EF_ARM_MAPSYMSFIRST) | |
7601 | fprintf (file, _(" [mapping symbols precede others]")); | |
7602 | ||
99e4ae17 | 7603 | flags &= ~(EF_ARM_SYMSARESORTED | EF_ARM_DYNSYMSUSESEGIDX |
fd2ec330 PB |
7604 | | EF_ARM_MAPSYMSFIRST); |
7605 | break; | |
7606 | ||
d507cf36 PB |
7607 | case EF_ARM_EABI_VER3: |
7608 | fprintf (file, _(" [Version3 EABI]")); | |
8cb51566 PB |
7609 | break; |
7610 | ||
7611 | case EF_ARM_EABI_VER4: | |
7612 | fprintf (file, _(" [Version4 EABI]")); | |
3a4a14e9 | 7613 | goto eabi; |
d507cf36 | 7614 | |
3a4a14e9 PB |
7615 | case EF_ARM_EABI_VER5: |
7616 | fprintf (file, _(" [Version5 EABI]")); | |
7617 | eabi: | |
d507cf36 PB |
7618 | if (flags & EF_ARM_BE8) |
7619 | fprintf (file, _(" [BE8]")); | |
7620 | ||
7621 | if (flags & EF_ARM_LE8) | |
7622 | fprintf (file, _(" [LE8]")); | |
7623 | ||
7624 | flags &= ~(EF_ARM_LE8 | EF_ARM_BE8); | |
7625 | break; | |
7626 | ||
fc830a83 | 7627 | default: |
9b485d32 | 7628 | fprintf (file, _(" <EABI version unrecognised>")); |
fc830a83 NC |
7629 | break; |
7630 | } | |
252b5132 | 7631 | |
fc830a83 | 7632 | flags &= ~ EF_ARM_EABIMASK; |
252b5132 | 7633 | |
fc830a83 | 7634 | if (flags & EF_ARM_RELEXEC) |
9b485d32 | 7635 | fprintf (file, _(" [relocatable executable]")); |
252b5132 | 7636 | |
fc830a83 | 7637 | if (flags & EF_ARM_HASENTRY) |
9b485d32 | 7638 | fprintf (file, _(" [has entry point]")); |
252b5132 | 7639 | |
fc830a83 NC |
7640 | flags &= ~ (EF_ARM_RELEXEC | EF_ARM_HASENTRY); |
7641 | ||
7642 | if (flags) | |
9b485d32 | 7643 | fprintf (file, _("<Unrecognised flag bits set>")); |
9a5aca8c | 7644 | |
252b5132 RH |
7645 | fputc ('\n', file); |
7646 | ||
b34976b6 | 7647 | return TRUE; |
252b5132 RH |
7648 | } |
7649 | ||
7650 | static int | |
57e8b36a | 7651 | elf32_arm_get_symbol_type (Elf_Internal_Sym * elf_sym, int type) |
252b5132 | 7652 | { |
2f0ca46a NC |
7653 | switch (ELF_ST_TYPE (elf_sym->st_info)) |
7654 | { | |
7655 | case STT_ARM_TFUNC: | |
7656 | return ELF_ST_TYPE (elf_sym->st_info); | |
ce855c42 | 7657 | |
2f0ca46a NC |
7658 | case STT_ARM_16BIT: |
7659 | /* If the symbol is not an object, return the STT_ARM_16BIT flag. | |
7660 | This allows us to distinguish between data used by Thumb instructions | |
7661 | and non-data (which is probably code) inside Thumb regions of an | |
7662 | executable. */ | |
1a0eb693 | 7663 | if (type != STT_OBJECT && type != STT_TLS) |
2f0ca46a NC |
7664 | return ELF_ST_TYPE (elf_sym->st_info); |
7665 | break; | |
9a5aca8c | 7666 | |
ce855c42 NC |
7667 | default: |
7668 | break; | |
2f0ca46a NC |
7669 | } |
7670 | ||
7671 | return type; | |
252b5132 | 7672 | } |
f21f3fe0 | 7673 | |
252b5132 | 7674 | static asection * |
07adf181 AM |
7675 | elf32_arm_gc_mark_hook (asection *sec, |
7676 | struct bfd_link_info *info, | |
7677 | Elf_Internal_Rela *rel, | |
7678 | struct elf_link_hash_entry *h, | |
7679 | Elf_Internal_Sym *sym) | |
252b5132 RH |
7680 | { |
7681 | if (h != NULL) | |
07adf181 | 7682 | switch (ELF32_R_TYPE (rel->r_info)) |
252b5132 RH |
7683 | { |
7684 | case R_ARM_GNU_VTINHERIT: | |
7685 | case R_ARM_GNU_VTENTRY: | |
07adf181 AM |
7686 | return NULL; |
7687 | } | |
9ad5cbcf | 7688 | |
07adf181 | 7689 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
252b5132 RH |
7690 | } |
7691 | ||
780a67af NC |
7692 | /* Update the got entry reference counts for the section being removed. */ |
7693 | ||
b34976b6 | 7694 | static bfd_boolean |
ba93b8ac DJ |
7695 | elf32_arm_gc_sweep_hook (bfd * abfd, |
7696 | struct bfd_link_info * info, | |
7697 | asection * sec, | |
7698 | const Elf_Internal_Rela * relocs) | |
252b5132 | 7699 | { |
5e681ec4 PB |
7700 | Elf_Internal_Shdr *symtab_hdr; |
7701 | struct elf_link_hash_entry **sym_hashes; | |
7702 | bfd_signed_vma *local_got_refcounts; | |
7703 | const Elf_Internal_Rela *rel, *relend; | |
eb043451 PB |
7704 | struct elf32_arm_link_hash_table * globals; |
7705 | ||
7706 | globals = elf32_arm_hash_table (info); | |
5e681ec4 PB |
7707 | |
7708 | elf_section_data (sec)->local_dynrel = NULL; | |
7709 | ||
7710 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
7711 | sym_hashes = elf_sym_hashes (abfd); | |
7712 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
7713 | ||
7714 | relend = relocs + sec->reloc_count; | |
7715 | for (rel = relocs; rel < relend; rel++) | |
eb043451 | 7716 | { |
3eb128b2 AM |
7717 | unsigned long r_symndx; |
7718 | struct elf_link_hash_entry *h = NULL; | |
eb043451 | 7719 | int r_type; |
5e681ec4 | 7720 | |
3eb128b2 AM |
7721 | r_symndx = ELF32_R_SYM (rel->r_info); |
7722 | if (r_symndx >= symtab_hdr->sh_info) | |
7723 | { | |
7724 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
7725 | while (h->root.type == bfd_link_hash_indirect | |
7726 | || h->root.type == bfd_link_hash_warning) | |
7727 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7728 | } | |
7729 | ||
eb043451 | 7730 | r_type = ELF32_R_TYPE (rel->r_info); |
eb043451 | 7731 | r_type = arm_real_reloc_type (globals, r_type); |
eb043451 PB |
7732 | switch (r_type) |
7733 | { | |
7734 | case R_ARM_GOT32: | |
eb043451 | 7735 | case R_ARM_GOT_PREL: |
ba93b8ac DJ |
7736 | case R_ARM_TLS_GD32: |
7737 | case R_ARM_TLS_IE32: | |
3eb128b2 | 7738 | if (h != NULL) |
eb043451 | 7739 | { |
eb043451 PB |
7740 | if (h->got.refcount > 0) |
7741 | h->got.refcount -= 1; | |
7742 | } | |
7743 | else if (local_got_refcounts != NULL) | |
7744 | { | |
7745 | if (local_got_refcounts[r_symndx] > 0) | |
7746 | local_got_refcounts[r_symndx] -= 1; | |
7747 | } | |
7748 | break; | |
7749 | ||
ba93b8ac DJ |
7750 | case R_ARM_TLS_LDM32: |
7751 | elf32_arm_hash_table (info)->tls_ldm_got.refcount -= 1; | |
7752 | break; | |
7753 | ||
eb043451 | 7754 | case R_ARM_ABS32: |
bb224fc3 | 7755 | case R_ARM_ABS32_NOI: |
eb043451 | 7756 | case R_ARM_REL32: |
bb224fc3 | 7757 | case R_ARM_REL32_NOI: |
eb043451 PB |
7758 | case R_ARM_PC24: |
7759 | case R_ARM_PLT32: | |
5b5bb741 PB |
7760 | case R_ARM_CALL: |
7761 | case R_ARM_JUMP24: | |
eb043451 | 7762 | case R_ARM_PREL31: |
c19d1205 | 7763 | case R_ARM_THM_CALL: |
b6895b4f PB |
7764 | case R_ARM_MOVW_ABS_NC: |
7765 | case R_ARM_MOVT_ABS: | |
7766 | case R_ARM_MOVW_PREL_NC: | |
7767 | case R_ARM_MOVT_PREL: | |
7768 | case R_ARM_THM_MOVW_ABS_NC: | |
7769 | case R_ARM_THM_MOVT_ABS: | |
7770 | case R_ARM_THM_MOVW_PREL_NC: | |
7771 | case R_ARM_THM_MOVT_PREL: | |
b7693d02 DJ |
7772 | /* Should the interworking branches be here also? */ |
7773 | ||
3eb128b2 | 7774 | if (h != NULL) |
eb043451 PB |
7775 | { |
7776 | struct elf32_arm_link_hash_entry *eh; | |
7777 | struct elf32_arm_relocs_copied **pp; | |
7778 | struct elf32_arm_relocs_copied *p; | |
5e681ec4 | 7779 | |
b7693d02 | 7780 | eh = (struct elf32_arm_link_hash_entry *) h; |
5e681ec4 | 7781 | |
eb043451 | 7782 | if (h->plt.refcount > 0) |
b7693d02 DJ |
7783 | { |
7784 | h->plt.refcount -= 1; | |
c19d1205 | 7785 | if (ELF32_R_TYPE (rel->r_info) == R_ARM_THM_CALL) |
b7693d02 DJ |
7786 | eh->plt_thumb_refcount--; |
7787 | } | |
5e681ec4 | 7788 | |
eb043451 | 7789 | if (r_type == R_ARM_ABS32 |
bb224fc3 MS |
7790 | || r_type == R_ARM_REL32 |
7791 | || r_type == R_ARM_ABS32_NOI | |
7792 | || r_type == R_ARM_REL32_NOI) | |
eb043451 | 7793 | { |
eb043451 PB |
7794 | for (pp = &eh->relocs_copied; (p = *pp) != NULL; |
7795 | pp = &p->next) | |
7796 | if (p->section == sec) | |
7797 | { | |
7798 | p->count -= 1; | |
bb224fc3 MS |
7799 | if (ELF32_R_TYPE (rel->r_info) == R_ARM_REL32 |
7800 | || ELF32_R_TYPE (rel->r_info) == R_ARM_REL32_NOI) | |
ba93b8ac | 7801 | p->pc_count -= 1; |
eb043451 PB |
7802 | if (p->count == 0) |
7803 | *pp = p->next; | |
7804 | break; | |
7805 | } | |
7806 | } | |
7807 | } | |
7808 | break; | |
5e681ec4 | 7809 | |
eb043451 PB |
7810 | default: |
7811 | break; | |
7812 | } | |
7813 | } | |
5e681ec4 | 7814 | |
b34976b6 | 7815 | return TRUE; |
252b5132 RH |
7816 | } |
7817 | ||
780a67af NC |
7818 | /* Look through the relocs for a section during the first phase. */ |
7819 | ||
b34976b6 | 7820 | static bfd_boolean |
57e8b36a NC |
7821 | elf32_arm_check_relocs (bfd *abfd, struct bfd_link_info *info, |
7822 | asection *sec, const Elf_Internal_Rela *relocs) | |
252b5132 | 7823 | { |
b34976b6 AM |
7824 | Elf_Internal_Shdr *symtab_hdr; |
7825 | struct elf_link_hash_entry **sym_hashes; | |
7826 | struct elf_link_hash_entry **sym_hashes_end; | |
7827 | const Elf_Internal_Rela *rel; | |
7828 | const Elf_Internal_Rela *rel_end; | |
7829 | bfd *dynobj; | |
5e681ec4 | 7830 | asection *sreloc; |
b34976b6 | 7831 | bfd_vma *local_got_offsets; |
5e681ec4 | 7832 | struct elf32_arm_link_hash_table *htab; |
9a5aca8c | 7833 | |
1049f94e | 7834 | if (info->relocatable) |
b34976b6 | 7835 | return TRUE; |
9a5aca8c | 7836 | |
5e681ec4 PB |
7837 | htab = elf32_arm_hash_table (info); |
7838 | sreloc = NULL; | |
9a5aca8c | 7839 | |
67687978 PB |
7840 | /* Create dynamic sections for relocatable executables so that we can |
7841 | copy relocations. */ | |
7842 | if (htab->root.is_relocatable_executable | |
7843 | && ! htab->root.dynamic_sections_created) | |
7844 | { | |
7845 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) | |
7846 | return FALSE; | |
7847 | } | |
7848 | ||
252b5132 RH |
7849 | dynobj = elf_hash_table (info)->dynobj; |
7850 | local_got_offsets = elf_local_got_offsets (abfd); | |
f21f3fe0 | 7851 | |
252b5132 RH |
7852 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
7853 | sym_hashes = elf_sym_hashes (abfd); | |
9b485d32 NC |
7854 | sym_hashes_end = sym_hashes |
7855 | + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
7856 | ||
252b5132 RH |
7857 | if (!elf_bad_symtab (abfd)) |
7858 | sym_hashes_end -= symtab_hdr->sh_info; | |
9b485d32 | 7859 | |
252b5132 RH |
7860 | rel_end = relocs + sec->reloc_count; |
7861 | for (rel = relocs; rel < rel_end; rel++) | |
7862 | { | |
7863 | struct elf_link_hash_entry *h; | |
b7693d02 | 7864 | struct elf32_arm_link_hash_entry *eh; |
252b5132 | 7865 | unsigned long r_symndx; |
eb043451 | 7866 | int r_type; |
9a5aca8c | 7867 | |
252b5132 | 7868 | r_symndx = ELF32_R_SYM (rel->r_info); |
eb043451 | 7869 | r_type = ELF32_R_TYPE (rel->r_info); |
eb043451 | 7870 | r_type = arm_real_reloc_type (htab, r_type); |
ba93b8ac DJ |
7871 | |
7872 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
7873 | { | |
7874 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), abfd, | |
7875 | r_symndx); | |
7876 | return FALSE; | |
7877 | } | |
7878 | ||
252b5132 RH |
7879 | if (r_symndx < symtab_hdr->sh_info) |
7880 | h = NULL; | |
7881 | else | |
973a3492 L |
7882 | { |
7883 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
7884 | while (h->root.type == bfd_link_hash_indirect | |
7885 | || h->root.type == bfd_link_hash_warning) | |
7886 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7887 | } | |
9a5aca8c | 7888 | |
b7693d02 DJ |
7889 | eh = (struct elf32_arm_link_hash_entry *) h; |
7890 | ||
eb043451 | 7891 | switch (r_type) |
252b5132 | 7892 | { |
5e681ec4 | 7893 | case R_ARM_GOT32: |
eb043451 | 7894 | case R_ARM_GOT_PREL: |
ba93b8ac DJ |
7895 | case R_ARM_TLS_GD32: |
7896 | case R_ARM_TLS_IE32: | |
5e681ec4 | 7897 | /* This symbol requires a global offset table entry. */ |
ba93b8ac DJ |
7898 | { |
7899 | int tls_type, old_tls_type; | |
5e681ec4 | 7900 | |
ba93b8ac DJ |
7901 | switch (r_type) |
7902 | { | |
7903 | case R_ARM_TLS_GD32: tls_type = GOT_TLS_GD; break; | |
7904 | case R_ARM_TLS_IE32: tls_type = GOT_TLS_IE; break; | |
7905 | default: tls_type = GOT_NORMAL; break; | |
7906 | } | |
252b5132 | 7907 | |
ba93b8ac DJ |
7908 | if (h != NULL) |
7909 | { | |
7910 | h->got.refcount++; | |
7911 | old_tls_type = elf32_arm_hash_entry (h)->tls_type; | |
7912 | } | |
7913 | else | |
7914 | { | |
7915 | bfd_signed_vma *local_got_refcounts; | |
7916 | ||
7917 | /* This is a global offset table entry for a local symbol. */ | |
7918 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
7919 | if (local_got_refcounts == NULL) | |
7920 | { | |
7921 | bfd_size_type size; | |
7922 | ||
7923 | size = symtab_hdr->sh_info; | |
7924 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
7925 | local_got_refcounts = bfd_zalloc (abfd, size); | |
7926 | if (local_got_refcounts == NULL) | |
7927 | return FALSE; | |
7928 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
7929 | elf32_arm_local_got_tls_type (abfd) | |
7930 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
7931 | } | |
7932 | local_got_refcounts[r_symndx] += 1; | |
7933 | old_tls_type = elf32_arm_local_got_tls_type (abfd) [r_symndx]; | |
7934 | } | |
7935 | ||
7936 | /* We will already have issued an error message if there is a | |
7937 | TLS / non-TLS mismatch, based on the symbol type. We don't | |
7938 | support any linker relaxations. So just combine any TLS | |
7939 | types needed. */ | |
7940 | if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL | |
7941 | && tls_type != GOT_NORMAL) | |
7942 | tls_type |= old_tls_type; | |
7943 | ||
7944 | if (old_tls_type != tls_type) | |
7945 | { | |
7946 | if (h != NULL) | |
7947 | elf32_arm_hash_entry (h)->tls_type = tls_type; | |
7948 | else | |
7949 | elf32_arm_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
7950 | } | |
7951 | } | |
7952 | /* Fall through */ | |
7953 | ||
7954 | case R_ARM_TLS_LDM32: | |
7955 | if (r_type == R_ARM_TLS_LDM32) | |
7956 | htab->tls_ldm_got.refcount++; | |
7957 | /* Fall through */ | |
252b5132 | 7958 | |
c19d1205 | 7959 | case R_ARM_GOTOFF32: |
5e681ec4 PB |
7960 | case R_ARM_GOTPC: |
7961 | if (htab->sgot == NULL) | |
7962 | { | |
7963 | if (htab->root.dynobj == NULL) | |
7964 | htab->root.dynobj = abfd; | |
7965 | if (!create_got_section (htab->root.dynobj, info)) | |
7966 | return FALSE; | |
7967 | } | |
252b5132 RH |
7968 | break; |
7969 | ||
00a97672 RS |
7970 | case R_ARM_ABS12: |
7971 | /* VxWorks uses dynamic R_ARM_ABS12 relocations for | |
7972 | ldr __GOTT_INDEX__ offsets. */ | |
7973 | if (!htab->vxworks_p) | |
7974 | break; | |
7975 | /* Fall through */ | |
7976 | ||
252b5132 | 7977 | case R_ARM_ABS32: |
bb224fc3 | 7978 | case R_ARM_ABS32_NOI: |
252b5132 | 7979 | case R_ARM_REL32: |
bb224fc3 | 7980 | case R_ARM_REL32_NOI: |
252b5132 | 7981 | case R_ARM_PC24: |
7359ea65 | 7982 | case R_ARM_PLT32: |
5b5bb741 PB |
7983 | case R_ARM_CALL: |
7984 | case R_ARM_JUMP24: | |
eb043451 | 7985 | case R_ARM_PREL31: |
c19d1205 | 7986 | case R_ARM_THM_CALL: |
b6895b4f PB |
7987 | case R_ARM_MOVW_ABS_NC: |
7988 | case R_ARM_MOVT_ABS: | |
7989 | case R_ARM_MOVW_PREL_NC: | |
7990 | case R_ARM_MOVT_PREL: | |
7991 | case R_ARM_THM_MOVW_ABS_NC: | |
7992 | case R_ARM_THM_MOVT_ABS: | |
7993 | case R_ARM_THM_MOVW_PREL_NC: | |
7994 | case R_ARM_THM_MOVT_PREL: | |
b7693d02 | 7995 | /* Should the interworking branches be listed here? */ |
7359ea65 | 7996 | if (h != NULL) |
5e681ec4 PB |
7997 | { |
7998 | /* If this reloc is in a read-only section, we might | |
7999 | need a copy reloc. We can't check reliably at this | |
8000 | stage whether the section is read-only, as input | |
8001 | sections have not yet been mapped to output sections. | |
8002 | Tentatively set the flag for now, and correct in | |
8003 | adjust_dynamic_symbol. */ | |
7359ea65 | 8004 | if (!info->shared) |
f5385ebf | 8005 | h->non_got_ref = 1; |
7359ea65 | 8006 | |
5e681ec4 | 8007 | /* We may need a .plt entry if the function this reloc |
c84cd8ee DJ |
8008 | refers to is in a different object. We can't tell for |
8009 | sure yet, because something later might force the | |
8010 | symbol local. */ | |
bb224fc3 MS |
8011 | if (r_type != R_ARM_ABS32 |
8012 | && r_type != R_ARM_REL32 | |
8013 | && r_type != R_ARM_ABS32_NOI | |
8014 | && r_type != R_ARM_REL32_NOI) | |
f5385ebf | 8015 | h->needs_plt = 1; |
4f199be3 DJ |
8016 | |
8017 | /* If we create a PLT entry, this relocation will reference | |
8018 | it, even if it's an ABS32 relocation. */ | |
8019 | h->plt.refcount += 1; | |
b7693d02 | 8020 | |
c19d1205 | 8021 | if (r_type == R_ARM_THM_CALL) |
b7693d02 | 8022 | eh->plt_thumb_refcount += 1; |
5e681ec4 PB |
8023 | } |
8024 | ||
67687978 PB |
8025 | /* If we are creating a shared library or relocatable executable, |
8026 | and this is a reloc against a global symbol, or a non PC | |
8027 | relative reloc against a local symbol, then we need to copy | |
8028 | the reloc into the shared library. However, if we are linking | |
8029 | with -Bsymbolic, we do not need to copy a reloc against a | |
252b5132 RH |
8030 | global symbol which is defined in an object we are |
8031 | including in the link (i.e., DEF_REGULAR is set). At | |
8032 | this point we have not seen all the input files, so it is | |
8033 | possible that DEF_REGULAR is not set now but will be set | |
8034 | later (it is never cleared). We account for that | |
8035 | possibility below by storing information in the | |
5e681ec4 | 8036 | relocs_copied field of the hash table entry. */ |
67687978 | 8037 | if ((info->shared || htab->root.is_relocatable_executable) |
5e681ec4 | 8038 | && (sec->flags & SEC_ALLOC) != 0 |
bb224fc3 | 8039 | && ((r_type == R_ARM_ABS32 || r_type == R_ARM_ABS32_NOI) |
71a976dd DJ |
8040 | || (h != NULL && ! h->needs_plt |
8041 | && (! info->symbolic || ! h->def_regular)))) | |
252b5132 | 8042 | { |
5e681ec4 PB |
8043 | struct elf32_arm_relocs_copied *p, **head; |
8044 | ||
252b5132 RH |
8045 | /* When creating a shared object, we must copy these |
8046 | reloc types into the output file. We create a reloc | |
8047 | section in dynobj and make room for this reloc. */ | |
8048 | if (sreloc == NULL) | |
8049 | { | |
8050 | const char * name; | |
8051 | ||
8052 | name = (bfd_elf_string_from_elf_section | |
8053 | (abfd, | |
8054 | elf_elfheader (abfd)->e_shstrndx, | |
8055 | elf_section_data (sec)->rel_hdr.sh_name)); | |
8056 | if (name == NULL) | |
b34976b6 | 8057 | return FALSE; |
252b5132 | 8058 | |
00a97672 | 8059 | BFD_ASSERT (reloc_section_p (htab, name, sec)); |
252b5132 RH |
8060 | |
8061 | sreloc = bfd_get_section_by_name (dynobj, name); | |
8062 | if (sreloc == NULL) | |
8063 | { | |
8064 | flagword flags; | |
8065 | ||
252b5132 RH |
8066 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
8067 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
e5a52504 MM |
8068 | if ((sec->flags & SEC_ALLOC) != 0 |
8069 | /* BPABI objects never have dynamic | |
8070 | relocations mapped. */ | |
8071 | && !htab->symbian_p) | |
252b5132 | 8072 | flags |= SEC_ALLOC | SEC_LOAD; |
3496cb2a L |
8073 | sreloc = bfd_make_section_with_flags (dynobj, |
8074 | name, | |
8075 | flags); | |
252b5132 | 8076 | if (sreloc == NULL |
252b5132 | 8077 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
b34976b6 | 8078 | return FALSE; |
252b5132 | 8079 | } |
5e681ec4 PB |
8080 | |
8081 | elf_section_data (sec)->sreloc = sreloc; | |
252b5132 RH |
8082 | } |
8083 | ||
5e681ec4 PB |
8084 | /* If this is a global symbol, we count the number of |
8085 | relocations we need for this symbol. */ | |
8086 | if (h != NULL) | |
252b5132 | 8087 | { |
5e681ec4 PB |
8088 | head = &((struct elf32_arm_link_hash_entry *) h)->relocs_copied; |
8089 | } | |
8090 | else | |
8091 | { | |
8092 | /* Track dynamic relocs needed for local syms too. | |
8093 | We really need local syms available to do this | |
8094 | easily. Oh well. */ | |
57e8b36a | 8095 | |
5e681ec4 | 8096 | asection *s; |
6edfbbad DJ |
8097 | void *vpp; |
8098 | ||
5e681ec4 PB |
8099 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
8100 | sec, r_symndx); | |
8101 | if (s == NULL) | |
8102 | return FALSE; | |
57e8b36a | 8103 | |
6edfbbad DJ |
8104 | vpp = &elf_section_data (s)->local_dynrel; |
8105 | head = (struct elf32_arm_relocs_copied **) vpp; | |
5e681ec4 | 8106 | } |
57e8b36a | 8107 | |
5e681ec4 PB |
8108 | p = *head; |
8109 | if (p == NULL || p->section != sec) | |
8110 | { | |
8111 | bfd_size_type amt = sizeof *p; | |
57e8b36a | 8112 | |
5e681ec4 | 8113 | p = bfd_alloc (htab->root.dynobj, amt); |
252b5132 | 8114 | if (p == NULL) |
5e681ec4 PB |
8115 | return FALSE; |
8116 | p->next = *head; | |
8117 | *head = p; | |
8118 | p->section = sec; | |
8119 | p->count = 0; | |
ba93b8ac | 8120 | p->pc_count = 0; |
252b5132 | 8121 | } |
57e8b36a | 8122 | |
bb224fc3 | 8123 | if (r_type == R_ARM_REL32 || r_type == R_ARM_REL32_NOI) |
ba93b8ac | 8124 | p->pc_count += 1; |
71a976dd | 8125 | p->count += 1; |
252b5132 RH |
8126 | } |
8127 | break; | |
8128 | ||
8129 | /* This relocation describes the C++ object vtable hierarchy. | |
8130 | Reconstruct it for later use during GC. */ | |
8131 | case R_ARM_GNU_VTINHERIT: | |
c152c796 | 8132 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 8133 | return FALSE; |
252b5132 | 8134 | break; |
9a5aca8c | 8135 | |
252b5132 RH |
8136 | /* This relocation describes which C++ vtable entries are actually |
8137 | used. Record for later use during GC. */ | |
8138 | case R_ARM_GNU_VTENTRY: | |
c152c796 | 8139 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) |
b34976b6 | 8140 | return FALSE; |
252b5132 RH |
8141 | break; |
8142 | } | |
8143 | } | |
f21f3fe0 | 8144 | |
b34976b6 | 8145 | return TRUE; |
252b5132 RH |
8146 | } |
8147 | ||
6a5bb875 PB |
8148 | /* Unwinding tables are not referenced directly. This pass marks them as |
8149 | required if the corresponding code section is marked. */ | |
8150 | ||
8151 | static bfd_boolean | |
8152 | elf32_arm_gc_mark_extra_sections(struct bfd_link_info *info, | |
8153 | elf_gc_mark_hook_fn gc_mark_hook) | |
8154 | { | |
8155 | bfd *sub; | |
8156 | Elf_Internal_Shdr **elf_shdrp; | |
8157 | bfd_boolean again; | |
8158 | ||
8159 | /* Marking EH data may cause additional code sections to be marked, | |
8160 | requiring multiple passes. */ | |
8161 | again = TRUE; | |
8162 | while (again) | |
8163 | { | |
8164 | again = FALSE; | |
8165 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
8166 | { | |
8167 | asection *o; | |
8168 | ||
8169 | if (bfd_get_flavour (sub) != bfd_target_elf_flavour) | |
8170 | continue; | |
8171 | ||
8172 | elf_shdrp = elf_elfsections (sub); | |
8173 | for (o = sub->sections; o != NULL; o = o->next) | |
8174 | { | |
8175 | Elf_Internal_Shdr *hdr; | |
8176 | hdr = &elf_section_data (o)->this_hdr; | |
8177 | if (hdr->sh_type == SHT_ARM_EXIDX && hdr->sh_link | |
8178 | && !o->gc_mark | |
8179 | && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark) | |
8180 | { | |
8181 | again = TRUE; | |
8182 | if (!_bfd_elf_gc_mark (info, o, gc_mark_hook)) | |
8183 | return FALSE; | |
8184 | } | |
8185 | } | |
8186 | } | |
8187 | } | |
8188 | ||
8189 | return TRUE; | |
8190 | } | |
8191 | ||
3c9458e9 NC |
8192 | /* Treat mapping symbols as special target symbols. */ |
8193 | ||
8194 | static bfd_boolean | |
8195 | elf32_arm_is_target_special_symbol (bfd * abfd ATTRIBUTE_UNUSED, asymbol * sym) | |
8196 | { | |
b0796911 PB |
8197 | return bfd_is_arm_special_symbol_name (sym->name, |
8198 | BFD_ARM_SPECIAL_SYM_TYPE_ANY); | |
3c9458e9 NC |
8199 | } |
8200 | ||
0367ecfb NC |
8201 | /* This is a copy of elf_find_function() from elf.c except that |
8202 | ARM mapping symbols are ignored when looking for function names | |
8203 | and STT_ARM_TFUNC is considered to a function type. */ | |
252b5132 | 8204 | |
0367ecfb NC |
8205 | static bfd_boolean |
8206 | arm_elf_find_function (bfd * abfd ATTRIBUTE_UNUSED, | |
8207 | asection * section, | |
8208 | asymbol ** symbols, | |
8209 | bfd_vma offset, | |
8210 | const char ** filename_ptr, | |
8211 | const char ** functionname_ptr) | |
8212 | { | |
8213 | const char * filename = NULL; | |
8214 | asymbol * func = NULL; | |
8215 | bfd_vma low_func = 0; | |
8216 | asymbol ** p; | |
252b5132 RH |
8217 | |
8218 | for (p = symbols; *p != NULL; p++) | |
8219 | { | |
8220 | elf_symbol_type *q; | |
8221 | ||
8222 | q = (elf_symbol_type *) *p; | |
8223 | ||
252b5132 RH |
8224 | switch (ELF_ST_TYPE (q->internal_elf_sym.st_info)) |
8225 | { | |
8226 | default: | |
8227 | break; | |
8228 | case STT_FILE: | |
8229 | filename = bfd_asymbol_name (&q->symbol); | |
8230 | break; | |
252b5132 RH |
8231 | case STT_FUNC: |
8232 | case STT_ARM_TFUNC: | |
9d2da7ca | 8233 | case STT_NOTYPE: |
b0796911 | 8234 | /* Skip mapping symbols. */ |
0367ecfb | 8235 | if ((q->symbol.flags & BSF_LOCAL) |
b0796911 PB |
8236 | && bfd_is_arm_special_symbol_name (q->symbol.name, |
8237 | BFD_ARM_SPECIAL_SYM_TYPE_ANY)) | |
0367ecfb NC |
8238 | continue; |
8239 | /* Fall through. */ | |
6b40fcba | 8240 | if (bfd_get_section (&q->symbol) == section |
252b5132 RH |
8241 | && q->symbol.value >= low_func |
8242 | && q->symbol.value <= offset) | |
8243 | { | |
8244 | func = (asymbol *) q; | |
8245 | low_func = q->symbol.value; | |
8246 | } | |
8247 | break; | |
8248 | } | |
8249 | } | |
8250 | ||
8251 | if (func == NULL) | |
b34976b6 | 8252 | return FALSE; |
252b5132 | 8253 | |
0367ecfb NC |
8254 | if (filename_ptr) |
8255 | *filename_ptr = filename; | |
8256 | if (functionname_ptr) | |
8257 | *functionname_ptr = bfd_asymbol_name (func); | |
8258 | ||
8259 | return TRUE; | |
8260 | } | |
8261 | ||
8262 | ||
8263 | /* Find the nearest line to a particular section and offset, for error | |
8264 | reporting. This code is a duplicate of the code in elf.c, except | |
8265 | that it uses arm_elf_find_function. */ | |
8266 | ||
8267 | static bfd_boolean | |
8268 | elf32_arm_find_nearest_line (bfd * abfd, | |
8269 | asection * section, | |
8270 | asymbol ** symbols, | |
8271 | bfd_vma offset, | |
8272 | const char ** filename_ptr, | |
8273 | const char ** functionname_ptr, | |
8274 | unsigned int * line_ptr) | |
8275 | { | |
8276 | bfd_boolean found = FALSE; | |
8277 | ||
8278 | /* We skip _bfd_dwarf1_find_nearest_line since no known ARM toolchain uses it. */ | |
8279 | ||
8280 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |
8281 | filename_ptr, functionname_ptr, | |
8282 | line_ptr, 0, | |
8283 | & elf_tdata (abfd)->dwarf2_find_line_info)) | |
8284 | { | |
8285 | if (!*functionname_ptr) | |
8286 | arm_elf_find_function (abfd, section, symbols, offset, | |
8287 | *filename_ptr ? NULL : filename_ptr, | |
8288 | functionname_ptr); | |
f21f3fe0 | 8289 | |
0367ecfb NC |
8290 | return TRUE; |
8291 | } | |
8292 | ||
8293 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
8294 | & found, filename_ptr, | |
8295 | functionname_ptr, line_ptr, | |
8296 | & elf_tdata (abfd)->line_info)) | |
8297 | return FALSE; | |
8298 | ||
8299 | if (found && (*functionname_ptr || *line_ptr)) | |
8300 | return TRUE; | |
8301 | ||
8302 | if (symbols == NULL) | |
8303 | return FALSE; | |
8304 | ||
8305 | if (! arm_elf_find_function (abfd, section, symbols, offset, | |
8306 | filename_ptr, functionname_ptr)) | |
8307 | return FALSE; | |
8308 | ||
8309 | *line_ptr = 0; | |
b34976b6 | 8310 | return TRUE; |
252b5132 RH |
8311 | } |
8312 | ||
4ab527b0 FF |
8313 | static bfd_boolean |
8314 | elf32_arm_find_inliner_info (bfd * abfd, | |
8315 | const char ** filename_ptr, | |
8316 | const char ** functionname_ptr, | |
8317 | unsigned int * line_ptr) | |
8318 | { | |
8319 | bfd_boolean found; | |
8320 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
8321 | functionname_ptr, line_ptr, | |
8322 | & elf_tdata (abfd)->dwarf2_find_line_info); | |
8323 | return found; | |
8324 | } | |
8325 | ||
252b5132 RH |
8326 | /* Adjust a symbol defined by a dynamic object and referenced by a |
8327 | regular object. The current definition is in some section of the | |
8328 | dynamic object, but we're not including those sections. We have to | |
8329 | change the definition to something the rest of the link can | |
8330 | understand. */ | |
8331 | ||
b34976b6 | 8332 | static bfd_boolean |
57e8b36a NC |
8333 | elf32_arm_adjust_dynamic_symbol (struct bfd_link_info * info, |
8334 | struct elf_link_hash_entry * h) | |
252b5132 RH |
8335 | { |
8336 | bfd * dynobj; | |
8337 | asection * s; | |
8338 | unsigned int power_of_two; | |
b7693d02 | 8339 | struct elf32_arm_link_hash_entry * eh; |
67687978 | 8340 | struct elf32_arm_link_hash_table *globals; |
252b5132 | 8341 | |
67687978 | 8342 | globals = elf32_arm_hash_table (info); |
252b5132 RH |
8343 | dynobj = elf_hash_table (info)->dynobj; |
8344 | ||
8345 | /* Make sure we know what is going on here. */ | |
8346 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 8347 | && (h->needs_plt |
f6e332e6 | 8348 | || h->u.weakdef != NULL |
f5385ebf AM |
8349 | || (h->def_dynamic |
8350 | && h->ref_regular | |
8351 | && !h->def_regular))); | |
252b5132 | 8352 | |
b7693d02 DJ |
8353 | eh = (struct elf32_arm_link_hash_entry *) h; |
8354 | ||
252b5132 RH |
8355 | /* If this is a function, put it in the procedure linkage table. We |
8356 | will fill in the contents of the procedure linkage table later, | |
8357 | when we know the address of the .got section. */ | |
b7693d02 | 8358 | if (h->type == STT_FUNC || h->type == STT_ARM_TFUNC |
f5385ebf | 8359 | || h->needs_plt) |
252b5132 | 8360 | { |
5e681ec4 PB |
8361 | if (h->plt.refcount <= 0 |
8362 | || SYMBOL_CALLS_LOCAL (info, h) | |
8363 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
8364 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
8365 | { |
8366 | /* This case can occur if we saw a PLT32 reloc in an input | |
5e681ec4 PB |
8367 | file, but the symbol was never referred to by a dynamic |
8368 | object, or if all references were garbage collected. In | |
8369 | such a case, we don't actually need to build a procedure | |
8370 | linkage table, and we can just do a PC24 reloc instead. */ | |
8371 | h->plt.offset = (bfd_vma) -1; | |
b7693d02 | 8372 | eh->plt_thumb_refcount = 0; |
f5385ebf | 8373 | h->needs_plt = 0; |
252b5132 RH |
8374 | } |
8375 | ||
b34976b6 | 8376 | return TRUE; |
252b5132 | 8377 | } |
5e681ec4 | 8378 | else |
b7693d02 DJ |
8379 | { |
8380 | /* It's possible that we incorrectly decided a .plt reloc was | |
8381 | needed for an R_ARM_PC24 or similar reloc to a non-function sym | |
8382 | in check_relocs. We can't decide accurately between function | |
8383 | and non-function syms in check-relocs; Objects loaded later in | |
8384 | the link may change h->type. So fix it now. */ | |
8385 | h->plt.offset = (bfd_vma) -1; | |
8386 | eh->plt_thumb_refcount = 0; | |
8387 | } | |
252b5132 RH |
8388 | |
8389 | /* If this is a weak symbol, and there is a real definition, the | |
8390 | processor independent code will have arranged for us to see the | |
8391 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 8392 | if (h->u.weakdef != NULL) |
252b5132 | 8393 | { |
f6e332e6 AM |
8394 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
8395 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
8396 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
8397 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
b34976b6 | 8398 | return TRUE; |
252b5132 RH |
8399 | } |
8400 | ||
ba93b8ac DJ |
8401 | /* If there are no non-GOT references, we do not need a copy |
8402 | relocation. */ | |
8403 | if (!h->non_got_ref) | |
8404 | return TRUE; | |
8405 | ||
252b5132 RH |
8406 | /* This is a reference to a symbol defined by a dynamic object which |
8407 | is not a function. */ | |
8408 | ||
8409 | /* If we are creating a shared library, we must presume that the | |
8410 | only references to the symbol are via the global offset table. | |
8411 | For such cases we need not do anything here; the relocations will | |
67687978 PB |
8412 | be handled correctly by relocate_section. Relocatable executables |
8413 | can reference data in shared objects directly, so we don't need to | |
8414 | do anything here. */ | |
8415 | if (info->shared || globals->root.is_relocatable_executable) | |
b34976b6 | 8416 | return TRUE; |
252b5132 | 8417 | |
909272ee AM |
8418 | if (h->size == 0) |
8419 | { | |
8420 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
8421 | h->root.root.string); | |
8422 | return TRUE; | |
8423 | } | |
8424 | ||
252b5132 RH |
8425 | /* We must allocate the symbol in our .dynbss section, which will |
8426 | become part of the .bss section of the executable. There will be | |
8427 | an entry for this symbol in the .dynsym section. The dynamic | |
8428 | object will contain position independent code, so all references | |
8429 | from the dynamic object to this symbol will go through the global | |
8430 | offset table. The dynamic linker will use the .dynsym entry to | |
8431 | determine the address it must put in the global offset table, so | |
8432 | both the dynamic object and the regular object will refer to the | |
8433 | same memory location for the variable. */ | |
252b5132 RH |
8434 | s = bfd_get_section_by_name (dynobj, ".dynbss"); |
8435 | BFD_ASSERT (s != NULL); | |
8436 | ||
8437 | /* We must generate a R_ARM_COPY reloc to tell the dynamic linker to | |
8438 | copy the initial value out of the dynamic object and into the | |
8439 | runtime process image. We need to remember the offset into the | |
00a97672 | 8440 | .rel(a).bss section we are going to use. */ |
252b5132 RH |
8441 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
8442 | { | |
8443 | asection *srel; | |
8444 | ||
00a97672 | 8445 | srel = bfd_get_section_by_name (dynobj, RELOC_SECTION (globals, ".bss")); |
252b5132 | 8446 | BFD_ASSERT (srel != NULL); |
00a97672 | 8447 | srel->size += RELOC_SIZE (globals); |
f5385ebf | 8448 | h->needs_copy = 1; |
252b5132 RH |
8449 | } |
8450 | ||
8451 | /* We need to figure out the alignment required for this symbol. I | |
8452 | have no idea how ELF linkers handle this. */ | |
8453 | power_of_two = bfd_log2 (h->size); | |
8454 | if (power_of_two > 3) | |
8455 | power_of_two = 3; | |
8456 | ||
8457 | /* Apply the required alignment. */ | |
eea6121a | 8458 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
252b5132 RH |
8459 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
8460 | { | |
8461 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
b34976b6 | 8462 | return FALSE; |
252b5132 RH |
8463 | } |
8464 | ||
8465 | /* Define the symbol as being at this point in the section. */ | |
8466 | h->root.u.def.section = s; | |
eea6121a | 8467 | h->root.u.def.value = s->size; |
252b5132 RH |
8468 | |
8469 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 8470 | s->size += h->size; |
252b5132 | 8471 | |
b34976b6 | 8472 | return TRUE; |
252b5132 RH |
8473 | } |
8474 | ||
5e681ec4 PB |
8475 | /* Allocate space in .plt, .got and associated reloc sections for |
8476 | dynamic relocs. */ | |
8477 | ||
8478 | static bfd_boolean | |
57e8b36a | 8479 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
5e681ec4 PB |
8480 | { |
8481 | struct bfd_link_info *info; | |
8482 | struct elf32_arm_link_hash_table *htab; | |
8483 | struct elf32_arm_link_hash_entry *eh; | |
8484 | struct elf32_arm_relocs_copied *p; | |
8485 | ||
b7693d02 DJ |
8486 | eh = (struct elf32_arm_link_hash_entry *) h; |
8487 | ||
5e681ec4 PB |
8488 | if (h->root.type == bfd_link_hash_indirect) |
8489 | return TRUE; | |
8490 | ||
8491 | if (h->root.type == bfd_link_hash_warning) | |
8492 | /* When warning symbols are created, they **replace** the "real" | |
8493 | entry in the hash table, thus we never get to see the real | |
8494 | symbol in a hash traversal. So look at it now. */ | |
8495 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
8496 | ||
8497 | info = (struct bfd_link_info *) inf; | |
8498 | htab = elf32_arm_hash_table (info); | |
8499 | ||
8500 | if (htab->root.dynamic_sections_created | |
8501 | && h->plt.refcount > 0) | |
8502 | { | |
8503 | /* Make sure this symbol is output as a dynamic symbol. | |
8504 | Undefined weak syms won't yet be marked as dynamic. */ | |
8505 | if (h->dynindx == -1 | |
f5385ebf | 8506 | && !h->forced_local) |
5e681ec4 | 8507 | { |
c152c796 | 8508 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
8509 | return FALSE; |
8510 | } | |
8511 | ||
8512 | if (info->shared | |
7359ea65 | 8513 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
5e681ec4 PB |
8514 | { |
8515 | asection *s = htab->splt; | |
8516 | ||
8517 | /* If this is the first .plt entry, make room for the special | |
8518 | first entry. */ | |
eea6121a | 8519 | if (s->size == 0) |
e5a52504 | 8520 | s->size += htab->plt_header_size; |
5e681ec4 | 8521 | |
eea6121a | 8522 | h->plt.offset = s->size; |
5e681ec4 | 8523 | |
b7693d02 DJ |
8524 | /* If we will insert a Thumb trampoline before this PLT, leave room |
8525 | for it. */ | |
33bfe774 | 8526 | if (!htab->use_blx && eh->plt_thumb_refcount > 0) |
b7693d02 DJ |
8527 | { |
8528 | h->plt.offset += PLT_THUMB_STUB_SIZE; | |
8529 | s->size += PLT_THUMB_STUB_SIZE; | |
8530 | } | |
8531 | ||
5e681ec4 PB |
8532 | /* If this symbol is not defined in a regular file, and we are |
8533 | not generating a shared library, then set the symbol to this | |
8534 | location in the .plt. This is required to make function | |
8535 | pointers compare as equal between the normal executable and | |
8536 | the shared library. */ | |
8537 | if (! info->shared | |
f5385ebf | 8538 | && !h->def_regular) |
5e681ec4 PB |
8539 | { |
8540 | h->root.u.def.section = s; | |
8541 | h->root.u.def.value = h->plt.offset; | |
b7693d02 DJ |
8542 | |
8543 | /* Make sure the function is not marked as Thumb, in case | |
8544 | it is the target of an ABS32 relocation, which will | |
8545 | point to the PLT entry. */ | |
8546 | if (ELF_ST_TYPE (h->type) == STT_ARM_TFUNC) | |
8547 | h->type = ELF_ST_INFO (ELF_ST_BIND (h->type), STT_FUNC); | |
5e681ec4 PB |
8548 | } |
8549 | ||
8550 | /* Make room for this entry. */ | |
e5a52504 | 8551 | s->size += htab->plt_entry_size; |
5e681ec4 | 8552 | |
e5a52504 | 8553 | if (!htab->symbian_p) |
b7693d02 DJ |
8554 | { |
8555 | /* We also need to make an entry in the .got.plt section, which | |
8556 | will be placed in the .got section by the linker script. */ | |
8557 | eh->plt_got_offset = htab->sgotplt->size; | |
8558 | htab->sgotplt->size += 4; | |
8559 | } | |
5e681ec4 | 8560 | |
00a97672 RS |
8561 | /* We also need to make an entry in the .rel(a).plt section. */ |
8562 | htab->srelplt->size += RELOC_SIZE (htab); | |
8563 | ||
8564 | /* VxWorks executables have a second set of relocations for | |
8565 | each PLT entry. They go in a separate relocation section, | |
8566 | which is processed by the kernel loader. */ | |
8567 | if (htab->vxworks_p && !info->shared) | |
8568 | { | |
8569 | /* There is a relocation for the initial PLT entry: | |
8570 | an R_ARM_32 relocation for _GLOBAL_OFFSET_TABLE_. */ | |
8571 | if (h->plt.offset == htab->plt_header_size) | |
8572 | htab->srelplt2->size += RELOC_SIZE (htab); | |
8573 | ||
8574 | /* There are two extra relocations for each subsequent | |
8575 | PLT entry: an R_ARM_32 relocation for the GOT entry, | |
8576 | and an R_ARM_32 relocation for the PLT entry. */ | |
8577 | htab->srelplt2->size += RELOC_SIZE (htab) * 2; | |
8578 | } | |
5e681ec4 PB |
8579 | } |
8580 | else | |
8581 | { | |
8582 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 8583 | h->needs_plt = 0; |
5e681ec4 PB |
8584 | } |
8585 | } | |
8586 | else | |
8587 | { | |
8588 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 8589 | h->needs_plt = 0; |
5e681ec4 PB |
8590 | } |
8591 | ||
8592 | if (h->got.refcount > 0) | |
8593 | { | |
8594 | asection *s; | |
8595 | bfd_boolean dyn; | |
ba93b8ac DJ |
8596 | int tls_type = elf32_arm_hash_entry (h)->tls_type; |
8597 | int indx; | |
5e681ec4 PB |
8598 | |
8599 | /* Make sure this symbol is output as a dynamic symbol. | |
8600 | Undefined weak syms won't yet be marked as dynamic. */ | |
8601 | if (h->dynindx == -1 | |
f5385ebf | 8602 | && !h->forced_local) |
5e681ec4 | 8603 | { |
c152c796 | 8604 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
8605 | return FALSE; |
8606 | } | |
8607 | ||
e5a52504 MM |
8608 | if (!htab->symbian_p) |
8609 | { | |
8610 | s = htab->sgot; | |
8611 | h->got.offset = s->size; | |
ba93b8ac DJ |
8612 | |
8613 | if (tls_type == GOT_UNKNOWN) | |
8614 | abort (); | |
8615 | ||
8616 | if (tls_type == GOT_NORMAL) | |
8617 | /* Non-TLS symbols need one GOT slot. */ | |
8618 | s->size += 4; | |
8619 | else | |
8620 | { | |
8621 | if (tls_type & GOT_TLS_GD) | |
8622 | /* R_ARM_TLS_GD32 needs 2 consecutive GOT slots. */ | |
8623 | s->size += 8; | |
8624 | if (tls_type & GOT_TLS_IE) | |
8625 | /* R_ARM_TLS_IE32 needs one GOT slot. */ | |
8626 | s->size += 4; | |
8627 | } | |
8628 | ||
e5a52504 | 8629 | dyn = htab->root.dynamic_sections_created; |
ba93b8ac DJ |
8630 | |
8631 | indx = 0; | |
8632 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
8633 | && (!info->shared | |
8634 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
8635 | indx = h->dynindx; | |
8636 | ||
8637 | if (tls_type != GOT_NORMAL | |
8638 | && (info->shared || indx != 0) | |
8639 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
8640 | || h->root.type != bfd_link_hash_undefweak)) | |
8641 | { | |
8642 | if (tls_type & GOT_TLS_IE) | |
00a97672 | 8643 | htab->srelgot->size += RELOC_SIZE (htab); |
ba93b8ac DJ |
8644 | |
8645 | if (tls_type & GOT_TLS_GD) | |
00a97672 | 8646 | htab->srelgot->size += RELOC_SIZE (htab); |
ba93b8ac DJ |
8647 | |
8648 | if ((tls_type & GOT_TLS_GD) && indx != 0) | |
00a97672 | 8649 | htab->srelgot->size += RELOC_SIZE (htab); |
ba93b8ac DJ |
8650 | } |
8651 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
8652 | || h->root.type != bfd_link_hash_undefweak) | |
8653 | && (info->shared | |
8654 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
00a97672 | 8655 | htab->srelgot->size += RELOC_SIZE (htab); |
e5a52504 | 8656 | } |
5e681ec4 PB |
8657 | } |
8658 | else | |
8659 | h->got.offset = (bfd_vma) -1; | |
8660 | ||
a4fd1a8e PB |
8661 | /* Allocate stubs for exported Thumb functions on v4t. */ |
8662 | if (!htab->use_blx && h->dynindx != -1 | |
0eaedd0e | 8663 | && h->def_regular |
a4fd1a8e PB |
8664 | && ELF_ST_TYPE (h->type) == STT_ARM_TFUNC |
8665 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
8666 | { | |
8667 | struct elf_link_hash_entry * th; | |
8668 | struct bfd_link_hash_entry * bh; | |
8669 | struct elf_link_hash_entry * myh; | |
8670 | char name[1024]; | |
8671 | asection *s; | |
8672 | bh = NULL; | |
8673 | /* Create a new symbol to regist the real location of the function. */ | |
8674 | s = h->root.u.def.section; | |
8675 | sprintf(name, "__real_%s", h->root.root.string); | |
8676 | _bfd_generic_link_add_one_symbol (info, s->owner, | |
8677 | name, BSF_GLOBAL, s, | |
8678 | h->root.u.def.value, | |
8679 | NULL, TRUE, FALSE, &bh); | |
8680 | ||
8681 | myh = (struct elf_link_hash_entry *) bh; | |
8682 | myh->type = ELF_ST_INFO (STB_LOCAL, STT_ARM_TFUNC); | |
8683 | myh->forced_local = 1; | |
8684 | eh->export_glue = myh; | |
8685 | th = record_arm_to_thumb_glue (info, h); | |
8686 | /* Point the symbol at the stub. */ | |
8687 | h->type = ELF_ST_INFO (ELF_ST_BIND (h->type), STT_FUNC); | |
8688 | h->root.u.def.section = th->root.u.def.section; | |
8689 | h->root.u.def.value = th->root.u.def.value & ~1; | |
8690 | } | |
8691 | ||
5e681ec4 PB |
8692 | if (eh->relocs_copied == NULL) |
8693 | return TRUE; | |
8694 | ||
8695 | /* In the shared -Bsymbolic case, discard space allocated for | |
8696 | dynamic pc-relative relocs against symbols which turn out to be | |
8697 | defined in regular objects. For the normal shared case, discard | |
8698 | space for pc-relative relocs that have become local due to symbol | |
8699 | visibility changes. */ | |
8700 | ||
67687978 | 8701 | if (info->shared || htab->root.is_relocatable_executable) |
5e681ec4 | 8702 | { |
bb224fc3 MS |
8703 | /* The only reloc thats uses pc_count are R_ARM_REL32 and |
8704 | R_ARM_REL32_NOI, which will appear on something like | |
8705 | ".long foo - .". We want calls to protected symbols to resolve | |
8706 | directly to the function rather than going via the plt. If people | |
8707 | want function pointer comparisons to work as expected then they | |
8708 | should avoid writing assembly like ".long foo - .". */ | |
ba93b8ac DJ |
8709 | if (SYMBOL_CALLS_LOCAL (info, h)) |
8710 | { | |
8711 | struct elf32_arm_relocs_copied **pp; | |
8712 | ||
8713 | for (pp = &eh->relocs_copied; (p = *pp) != NULL; ) | |
8714 | { | |
8715 | p->count -= p->pc_count; | |
8716 | p->pc_count = 0; | |
8717 | if (p->count == 0) | |
8718 | *pp = p->next; | |
8719 | else | |
8720 | pp = &p->next; | |
8721 | } | |
8722 | } | |
8723 | ||
8724 | /* Also discard relocs on undefined weak syms with non-default | |
7359ea65 | 8725 | visibility. */ |
22d606e9 | 8726 | if (eh->relocs_copied != NULL |
5e681ec4 | 8727 | && h->root.type == bfd_link_hash_undefweak) |
22d606e9 AM |
8728 | { |
8729 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
8730 | eh->relocs_copied = NULL; | |
8731 | ||
8732 | /* Make sure undefined weak symbols are output as a dynamic | |
8733 | symbol in PIEs. */ | |
8734 | else if (h->dynindx == -1 | |
8735 | && !h->forced_local) | |
8736 | { | |
8737 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
8738 | return FALSE; | |
8739 | } | |
8740 | } | |
8741 | ||
67687978 PB |
8742 | else if (htab->root.is_relocatable_executable && h->dynindx == -1 |
8743 | && h->root.type == bfd_link_hash_new) | |
8744 | { | |
8745 | /* Output absolute symbols so that we can create relocations | |
8746 | against them. For normal symbols we output a relocation | |
8747 | against the section that contains them. */ | |
8748 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
8749 | return FALSE; | |
8750 | } | |
8751 | ||
5e681ec4 PB |
8752 | } |
8753 | else | |
8754 | { | |
8755 | /* For the non-shared case, discard space for relocs against | |
8756 | symbols which turn out to need copy relocs or are not | |
8757 | dynamic. */ | |
8758 | ||
f5385ebf AM |
8759 | if (!h->non_got_ref |
8760 | && ((h->def_dynamic | |
8761 | && !h->def_regular) | |
5e681ec4 PB |
8762 | || (htab->root.dynamic_sections_created |
8763 | && (h->root.type == bfd_link_hash_undefweak | |
8764 | || h->root.type == bfd_link_hash_undefined)))) | |
8765 | { | |
8766 | /* Make sure this symbol is output as a dynamic symbol. | |
8767 | Undefined weak syms won't yet be marked as dynamic. */ | |
8768 | if (h->dynindx == -1 | |
f5385ebf | 8769 | && !h->forced_local) |
5e681ec4 | 8770 | { |
c152c796 | 8771 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
5e681ec4 PB |
8772 | return FALSE; |
8773 | } | |
8774 | ||
8775 | /* If that succeeded, we know we'll be keeping all the | |
8776 | relocs. */ | |
8777 | if (h->dynindx != -1) | |
8778 | goto keep; | |
8779 | } | |
8780 | ||
8781 | eh->relocs_copied = NULL; | |
8782 | ||
8783 | keep: ; | |
8784 | } | |
8785 | ||
8786 | /* Finally, allocate space. */ | |
8787 | for (p = eh->relocs_copied; p != NULL; p = p->next) | |
8788 | { | |
8789 | asection *sreloc = elf_section_data (p->section)->sreloc; | |
00a97672 | 8790 | sreloc->size += p->count * RELOC_SIZE (htab); |
5e681ec4 PB |
8791 | } |
8792 | ||
8793 | return TRUE; | |
8794 | } | |
8795 | ||
08d1f311 DJ |
8796 | /* Find any dynamic relocs that apply to read-only sections. */ |
8797 | ||
8798 | static bfd_boolean | |
8799 | elf32_arm_readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf) | |
8800 | { | |
8801 | struct elf32_arm_link_hash_entry *eh; | |
8802 | struct elf32_arm_relocs_copied *p; | |
8803 | ||
8804 | if (h->root.type == bfd_link_hash_warning) | |
8805 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
8806 | ||
8807 | eh = (struct elf32_arm_link_hash_entry *) h; | |
8808 | for (p = eh->relocs_copied; p != NULL; p = p->next) | |
8809 | { | |
8810 | asection *s = p->section; | |
8811 | ||
8812 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
8813 | { | |
8814 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
8815 | ||
8816 | info->flags |= DF_TEXTREL; | |
8817 | ||
8818 | /* Not an error, just cut short the traversal. */ | |
8819 | return FALSE; | |
8820 | } | |
8821 | } | |
8822 | return TRUE; | |
8823 | } | |
8824 | ||
d504ffc8 DJ |
8825 | void |
8826 | bfd_elf32_arm_set_byteswap_code (struct bfd_link_info *info, | |
8827 | int byteswap_code) | |
8828 | { | |
8829 | struct elf32_arm_link_hash_table *globals; | |
8830 | ||
8831 | globals = elf32_arm_hash_table (info); | |
8832 | globals->byteswap_code = byteswap_code; | |
8833 | } | |
8834 | ||
252b5132 RH |
8835 | /* Set the sizes of the dynamic sections. */ |
8836 | ||
b34976b6 | 8837 | static bfd_boolean |
57e8b36a NC |
8838 | elf32_arm_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED, |
8839 | struct bfd_link_info * info) | |
252b5132 RH |
8840 | { |
8841 | bfd * dynobj; | |
8842 | asection * s; | |
b34976b6 AM |
8843 | bfd_boolean plt; |
8844 | bfd_boolean relocs; | |
5e681ec4 PB |
8845 | bfd *ibfd; |
8846 | struct elf32_arm_link_hash_table *htab; | |
252b5132 | 8847 | |
5e681ec4 | 8848 | htab = elf32_arm_hash_table (info); |
252b5132 RH |
8849 | dynobj = elf_hash_table (info)->dynobj; |
8850 | BFD_ASSERT (dynobj != NULL); | |
39b41c9c | 8851 | check_use_blx (htab); |
252b5132 RH |
8852 | |
8853 | if (elf_hash_table (info)->dynamic_sections_created) | |
8854 | { | |
8855 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 8856 | if (info->executable) |
252b5132 RH |
8857 | { |
8858 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
8859 | BFD_ASSERT (s != NULL); | |
eea6121a | 8860 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
252b5132 RH |
8861 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
8862 | } | |
8863 | } | |
5e681ec4 PB |
8864 | |
8865 | /* Set up .got offsets for local syms, and space for local dynamic | |
8866 | relocs. */ | |
8867 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
252b5132 | 8868 | { |
5e681ec4 PB |
8869 | bfd_signed_vma *local_got; |
8870 | bfd_signed_vma *end_local_got; | |
8871 | char *local_tls_type; | |
8872 | bfd_size_type locsymcount; | |
8873 | Elf_Internal_Shdr *symtab_hdr; | |
8874 | asection *srel; | |
8875 | ||
8876 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
8877 | continue; | |
8878 | ||
8879 | for (s = ibfd->sections; s != NULL; s = s->next) | |
8880 | { | |
8881 | struct elf32_arm_relocs_copied *p; | |
8882 | ||
6edfbbad | 8883 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
5e681ec4 PB |
8884 | { |
8885 | if (!bfd_is_abs_section (p->section) | |
8886 | && bfd_is_abs_section (p->section->output_section)) | |
8887 | { | |
8888 | /* Input section has been discarded, either because | |
8889 | it is a copy of a linkonce section or due to | |
8890 | linker script /DISCARD/, so we'll be discarding | |
8891 | the relocs too. */ | |
8892 | } | |
8893 | else if (p->count != 0) | |
8894 | { | |
8895 | srel = elf_section_data (p->section)->sreloc; | |
00a97672 | 8896 | srel->size += p->count * RELOC_SIZE (htab); |
5e681ec4 PB |
8897 | if ((p->section->output_section->flags & SEC_READONLY) != 0) |
8898 | info->flags |= DF_TEXTREL; | |
8899 | } | |
8900 | } | |
8901 | } | |
8902 | ||
8903 | local_got = elf_local_got_refcounts (ibfd); | |
8904 | if (!local_got) | |
8905 | continue; | |
8906 | ||
8907 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
8908 | locsymcount = symtab_hdr->sh_info; | |
8909 | end_local_got = local_got + locsymcount; | |
ba93b8ac | 8910 | local_tls_type = elf32_arm_local_got_tls_type (ibfd); |
5e681ec4 PB |
8911 | s = htab->sgot; |
8912 | srel = htab->srelgot; | |
8913 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) | |
8914 | { | |
8915 | if (*local_got > 0) | |
8916 | { | |
eea6121a | 8917 | *local_got = s->size; |
ba93b8ac DJ |
8918 | if (*local_tls_type & GOT_TLS_GD) |
8919 | /* TLS_GD relocs need an 8-byte structure in the GOT. */ | |
8920 | s->size += 8; | |
8921 | if (*local_tls_type & GOT_TLS_IE) | |
8922 | s->size += 4; | |
8923 | if (*local_tls_type == GOT_NORMAL) | |
8924 | s->size += 4; | |
8925 | ||
8926 | if (info->shared || *local_tls_type == GOT_TLS_GD) | |
00a97672 | 8927 | srel->size += RELOC_SIZE (htab); |
5e681ec4 PB |
8928 | } |
8929 | else | |
8930 | *local_got = (bfd_vma) -1; | |
8931 | } | |
252b5132 RH |
8932 | } |
8933 | ||
ba93b8ac DJ |
8934 | if (htab->tls_ldm_got.refcount > 0) |
8935 | { | |
8936 | /* Allocate two GOT entries and one dynamic relocation (if necessary) | |
8937 | for R_ARM_TLS_LDM32 relocations. */ | |
8938 | htab->tls_ldm_got.offset = htab->sgot->size; | |
8939 | htab->sgot->size += 8; | |
8940 | if (info->shared) | |
00a97672 | 8941 | htab->srelgot->size += RELOC_SIZE (htab); |
ba93b8ac DJ |
8942 | } |
8943 | else | |
8944 | htab->tls_ldm_got.offset = -1; | |
8945 | ||
5e681ec4 PB |
8946 | /* Allocate global sym .plt and .got entries, and space for global |
8947 | sym dynamic relocs. */ | |
57e8b36a | 8948 | elf_link_hash_traverse (& htab->root, allocate_dynrelocs, info); |
252b5132 | 8949 | |
d504ffc8 DJ |
8950 | /* Here we rummage through the found bfds to collect glue information. */ |
8951 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
c7b8f16e JB |
8952 | { |
8953 | /* Initialise mapping tables for code/data. */ | |
8954 | bfd_elf32_arm_init_maps (ibfd); | |
8955 | ||
8956 | if (!bfd_elf32_arm_process_before_allocation (ibfd, info) | |
8957 | || !bfd_elf32_arm_vfp11_erratum_scan (ibfd, info)) | |
8958 | /* xgettext:c-format */ | |
8959 | _bfd_error_handler (_("Errors encountered processing file %s"), | |
8960 | ibfd->filename); | |
8961 | } | |
d504ffc8 | 8962 | |
252b5132 RH |
8963 | /* The check_relocs and adjust_dynamic_symbol entry points have |
8964 | determined the sizes of the various dynamic sections. Allocate | |
8965 | memory for them. */ | |
b34976b6 AM |
8966 | plt = FALSE; |
8967 | relocs = FALSE; | |
252b5132 RH |
8968 | for (s = dynobj->sections; s != NULL; s = s->next) |
8969 | { | |
8970 | const char * name; | |
252b5132 RH |
8971 | |
8972 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
8973 | continue; | |
8974 | ||
8975 | /* It's OK to base decisions on the section name, because none | |
8976 | of the dynobj section names depend upon the input files. */ | |
8977 | name = bfd_get_section_name (dynobj, s); | |
8978 | ||
24a1ba0f | 8979 | if (strcmp (name, ".plt") == 0) |
252b5132 | 8980 | { |
c456f082 AM |
8981 | /* Remember whether there is a PLT. */ |
8982 | plt = s->size != 0; | |
252b5132 | 8983 | } |
0112cd26 | 8984 | else if (CONST_STRNEQ (name, ".rel")) |
252b5132 | 8985 | { |
c456f082 | 8986 | if (s->size != 0) |
252b5132 | 8987 | { |
252b5132 | 8988 | /* Remember whether there are any reloc sections other |
00a97672 RS |
8989 | than .rel(a).plt and .rela.plt.unloaded. */ |
8990 | if (s != htab->srelplt && s != htab->srelplt2) | |
b34976b6 | 8991 | relocs = TRUE; |
252b5132 RH |
8992 | |
8993 | /* We use the reloc_count field as a counter if we need | |
8994 | to copy relocs into the output file. */ | |
8995 | s->reloc_count = 0; | |
8996 | } | |
8997 | } | |
0112cd26 | 8998 | else if (! CONST_STRNEQ (name, ".got") |
c456f082 | 8999 | && strcmp (name, ".dynbss") != 0) |
252b5132 RH |
9000 | { |
9001 | /* It's not one of our sections, so don't allocate space. */ | |
9002 | continue; | |
9003 | } | |
9004 | ||
c456f082 | 9005 | if (s->size == 0) |
252b5132 | 9006 | { |
c456f082 | 9007 | /* If we don't need this section, strip it from the |
00a97672 RS |
9008 | output file. This is mostly to handle .rel(a).bss and |
9009 | .rel(a).plt. We must create both sections in | |
c456f082 AM |
9010 | create_dynamic_sections, because they must be created |
9011 | before the linker maps input sections to output | |
9012 | sections. The linker does that before | |
9013 | adjust_dynamic_symbol is called, and it is that | |
9014 | function which decides whether anything needs to go | |
9015 | into these sections. */ | |
8423293d | 9016 | s->flags |= SEC_EXCLUDE; |
252b5132 RH |
9017 | continue; |
9018 | } | |
9019 | ||
c456f082 AM |
9020 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
9021 | continue; | |
9022 | ||
252b5132 | 9023 | /* Allocate memory for the section contents. */ |
eea6121a | 9024 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
c456f082 | 9025 | if (s->contents == NULL) |
b34976b6 | 9026 | return FALSE; |
252b5132 RH |
9027 | } |
9028 | ||
9029 | if (elf_hash_table (info)->dynamic_sections_created) | |
9030 | { | |
9031 | /* Add some entries to the .dynamic section. We fill in the | |
9032 | values later, in elf32_arm_finish_dynamic_sections, but we | |
9033 | must add the entries now so that we get the correct size for | |
9034 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
9035 | dynamic linker and used by the debugger. */ | |
dc810e39 | 9036 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 9037 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 9038 | |
8532796c | 9039 | if (info->executable) |
252b5132 | 9040 | { |
dc810e39 | 9041 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 9042 | return FALSE; |
252b5132 RH |
9043 | } |
9044 | ||
9045 | if (plt) | |
9046 | { | |
dc810e39 AM |
9047 | if ( !add_dynamic_entry (DT_PLTGOT, 0) |
9048 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
00a97672 RS |
9049 | || !add_dynamic_entry (DT_PLTREL, |
9050 | htab->use_rel ? DT_REL : DT_RELA) | |
dc810e39 | 9051 | || !add_dynamic_entry (DT_JMPREL, 0)) |
b34976b6 | 9052 | return FALSE; |
252b5132 RH |
9053 | } |
9054 | ||
9055 | if (relocs) | |
9056 | { | |
00a97672 RS |
9057 | if (htab->use_rel) |
9058 | { | |
9059 | if (!add_dynamic_entry (DT_REL, 0) | |
9060 | || !add_dynamic_entry (DT_RELSZ, 0) | |
9061 | || !add_dynamic_entry (DT_RELENT, RELOC_SIZE (htab))) | |
9062 | return FALSE; | |
9063 | } | |
9064 | else | |
9065 | { | |
9066 | if (!add_dynamic_entry (DT_RELA, 0) | |
9067 | || !add_dynamic_entry (DT_RELASZ, 0) | |
9068 | || !add_dynamic_entry (DT_RELAENT, RELOC_SIZE (htab))) | |
9069 | return FALSE; | |
9070 | } | |
252b5132 RH |
9071 | } |
9072 | ||
08d1f311 DJ |
9073 | /* If any dynamic relocs apply to a read-only section, |
9074 | then we need a DT_TEXTREL entry. */ | |
9075 | if ((info->flags & DF_TEXTREL) == 0) | |
9076 | elf_link_hash_traverse (&htab->root, elf32_arm_readonly_dynrelocs, | |
9077 | (PTR) info); | |
9078 | ||
99e4ae17 | 9079 | if ((info->flags & DF_TEXTREL) != 0) |
252b5132 | 9080 | { |
dc810e39 | 9081 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 9082 | return FALSE; |
252b5132 RH |
9083 | } |
9084 | } | |
8532796c | 9085 | #undef add_dynamic_entry |
252b5132 | 9086 | |
b34976b6 | 9087 | return TRUE; |
252b5132 RH |
9088 | } |
9089 | ||
252b5132 RH |
9090 | /* Finish up dynamic symbol handling. We set the contents of various |
9091 | dynamic sections here. */ | |
9092 | ||
b34976b6 | 9093 | static bfd_boolean |
57e8b36a NC |
9094 | elf32_arm_finish_dynamic_symbol (bfd * output_bfd, struct bfd_link_info * info, |
9095 | struct elf_link_hash_entry * h, Elf_Internal_Sym * sym) | |
252b5132 RH |
9096 | { |
9097 | bfd * dynobj; | |
e5a52504 | 9098 | struct elf32_arm_link_hash_table *htab; |
b7693d02 | 9099 | struct elf32_arm_link_hash_entry *eh; |
252b5132 RH |
9100 | |
9101 | dynobj = elf_hash_table (info)->dynobj; | |
e5a52504 | 9102 | htab = elf32_arm_hash_table (info); |
b7693d02 | 9103 | eh = (struct elf32_arm_link_hash_entry *) h; |
252b5132 RH |
9104 | |
9105 | if (h->plt.offset != (bfd_vma) -1) | |
9106 | { | |
9107 | asection * splt; | |
252b5132 | 9108 | asection * srel; |
e5a52504 | 9109 | bfd_byte *loc; |
24a1ba0f | 9110 | bfd_vma plt_index; |
947216bf | 9111 | Elf_Internal_Rela rel; |
252b5132 RH |
9112 | |
9113 | /* This symbol has an entry in the procedure linkage table. Set | |
9114 | it up. */ | |
9115 | ||
9116 | BFD_ASSERT (h->dynindx != -1); | |
9117 | ||
9118 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
00a97672 | 9119 | srel = bfd_get_section_by_name (dynobj, RELOC_SECTION (htab, ".plt")); |
e5a52504 | 9120 | BFD_ASSERT (splt != NULL && srel != NULL); |
252b5132 | 9121 | |
e5a52504 MM |
9122 | /* Fill in the entry in the procedure linkage table. */ |
9123 | if (htab->symbian_p) | |
9124 | { | |
52ab56c2 PB |
9125 | put_arm_insn (htab, output_bfd, |
9126 | elf32_arm_symbian_plt_entry[0], | |
9127 | splt->contents + h->plt.offset); | |
9128 | bfd_put_32 (output_bfd, | |
9129 | elf32_arm_symbian_plt_entry[1], | |
9130 | splt->contents + h->plt.offset + 4); | |
e5a52504 MM |
9131 | |
9132 | /* Fill in the entry in the .rel.plt section. */ | |
2a1b9a48 MM |
9133 | rel.r_offset = (splt->output_section->vma |
9134 | + splt->output_offset | |
52ab56c2 | 9135 | + h->plt.offset + 4); |
e5a52504 | 9136 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT); |
b7693d02 DJ |
9137 | |
9138 | /* Get the index in the procedure linkage table which | |
9139 | corresponds to this symbol. This is the index of this symbol | |
9140 | in all the symbols for which we are making plt entries. The | |
9141 | first entry in the procedure linkage table is reserved. */ | |
9142 | plt_index = ((h->plt.offset - htab->plt_header_size) | |
9143 | / htab->plt_entry_size); | |
e5a52504 MM |
9144 | } |
9145 | else | |
9146 | { | |
00a97672 | 9147 | bfd_vma got_offset, got_address, plt_address; |
e5a52504 MM |
9148 | bfd_vma got_displacement; |
9149 | asection * sgot; | |
52ab56c2 | 9150 | bfd_byte * ptr; |
e5a52504 MM |
9151 | |
9152 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
9153 | BFD_ASSERT (sgot != NULL); | |
9154 | ||
b7693d02 DJ |
9155 | /* Get the offset into the .got.plt table of the entry that |
9156 | corresponds to this function. */ | |
9157 | got_offset = eh->plt_got_offset; | |
9158 | ||
9159 | /* Get the index in the procedure linkage table which | |
9160 | corresponds to this symbol. This is the index of this symbol | |
9161 | in all the symbols for which we are making plt entries. The | |
9162 | first three entries in .got.plt are reserved; after that | |
9163 | symbols appear in the same order as in .plt. */ | |
9164 | plt_index = (got_offset - 12) / 4; | |
e5a52504 | 9165 | |
00a97672 RS |
9166 | /* Calculate the address of the GOT entry. */ |
9167 | got_address = (sgot->output_section->vma | |
9168 | + sgot->output_offset | |
9169 | + got_offset); | |
5e681ec4 | 9170 | |
00a97672 RS |
9171 | /* ...and the address of the PLT entry. */ |
9172 | plt_address = (splt->output_section->vma | |
9173 | + splt->output_offset | |
9174 | + h->plt.offset); | |
5e681ec4 | 9175 | |
52ab56c2 | 9176 | ptr = htab->splt->contents + h->plt.offset; |
00a97672 RS |
9177 | if (htab->vxworks_p && info->shared) |
9178 | { | |
9179 | unsigned int i; | |
9180 | bfd_vma val; | |
9181 | ||
52ab56c2 | 9182 | for (i = 0; i != htab->plt_entry_size / 4; i++, ptr += 4) |
00a97672 RS |
9183 | { |
9184 | val = elf32_arm_vxworks_shared_plt_entry[i]; | |
9185 | if (i == 2) | |
9186 | val |= got_address - sgot->output_section->vma; | |
9187 | if (i == 5) | |
9188 | val |= plt_index * RELOC_SIZE (htab); | |
52ab56c2 PB |
9189 | if (i == 2 || i == 5) |
9190 | bfd_put_32 (output_bfd, val, ptr); | |
9191 | else | |
9192 | put_arm_insn (htab, output_bfd, val, ptr); | |
00a97672 RS |
9193 | } |
9194 | } | |
9195 | else if (htab->vxworks_p) | |
b7693d02 | 9196 | { |
00a97672 RS |
9197 | unsigned int i; |
9198 | bfd_vma val; | |
9199 | ||
9200 | for (i = 0; i != htab->plt_entry_size / 4; i++) | |
9201 | { | |
9202 | val = elf32_arm_vxworks_exec_plt_entry[i]; | |
9203 | if (i == 2) | |
9204 | val |= got_address; | |
9205 | if (i == 4) | |
9206 | val |= 0xffffff & -((h->plt.offset + i * 4 + 8) >> 2); | |
9207 | if (i == 5) | |
9208 | val |= plt_index * RELOC_SIZE (htab); | |
52ab56c2 PB |
9209 | if (i == 2 || i == 5) |
9210 | bfd_put_32 (output_bfd, val, ptr); | |
9211 | else | |
9212 | put_arm_insn (htab, output_bfd, val, ptr); | |
00a97672 RS |
9213 | } |
9214 | ||
9215 | loc = (htab->srelplt2->contents | |
9216 | + (plt_index * 2 + 1) * RELOC_SIZE (htab)); | |
9217 | ||
9218 | /* Create the .rela.plt.unloaded R_ARM_ABS32 relocation | |
9219 | referencing the GOT for this PLT entry. */ | |
9220 | rel.r_offset = plt_address + 8; | |
9221 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_ARM_ABS32); | |
9222 | rel.r_addend = got_offset; | |
9223 | SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc); | |
9224 | loc += RELOC_SIZE (htab); | |
9225 | ||
9226 | /* Create the R_ARM_ABS32 relocation referencing the | |
9227 | beginning of the PLT for this GOT entry. */ | |
9228 | rel.r_offset = got_address; | |
9229 | rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_ARM_ABS32); | |
9230 | rel.r_addend = 0; | |
9231 | SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc); | |
b7693d02 | 9232 | } |
00a97672 RS |
9233 | else |
9234 | { | |
9235 | /* Calculate the displacement between the PLT slot and the | |
9236 | entry in the GOT. The eight-byte offset accounts for the | |
9237 | value produced by adding to pc in the first instruction | |
9238 | of the PLT stub. */ | |
9239 | got_displacement = got_address - (plt_address + 8); | |
b7693d02 | 9240 | |
00a97672 RS |
9241 | BFD_ASSERT ((got_displacement & 0xf0000000) == 0); |
9242 | ||
9243 | if (!htab->use_blx && eh->plt_thumb_refcount > 0) | |
9244 | { | |
52ab56c2 PB |
9245 | put_thumb_insn (htab, output_bfd, |
9246 | elf32_arm_plt_thumb_stub[0], ptr - 4); | |
9247 | put_thumb_insn (htab, output_bfd, | |
9248 | elf32_arm_plt_thumb_stub[1], ptr - 2); | |
00a97672 RS |
9249 | } |
9250 | ||
52ab56c2 PB |
9251 | put_arm_insn (htab, output_bfd, |
9252 | elf32_arm_plt_entry[0] | |
9253 | | ((got_displacement & 0x0ff00000) >> 20), | |
9254 | ptr + 0); | |
9255 | put_arm_insn (htab, output_bfd, | |
9256 | elf32_arm_plt_entry[1] | |
9257 | | ((got_displacement & 0x000ff000) >> 12), | |
9258 | ptr+ 4); | |
9259 | put_arm_insn (htab, output_bfd, | |
9260 | elf32_arm_plt_entry[2] | |
9261 | | (got_displacement & 0x00000fff), | |
9262 | ptr + 8); | |
5e681ec4 | 9263 | #ifdef FOUR_WORD_PLT |
52ab56c2 | 9264 | bfd_put_32 (output_bfd, elf32_arm_plt_entry[3], ptr + 12); |
5e681ec4 | 9265 | #endif |
00a97672 | 9266 | } |
252b5132 | 9267 | |
e5a52504 MM |
9268 | /* Fill in the entry in the global offset table. */ |
9269 | bfd_put_32 (output_bfd, | |
9270 | (splt->output_section->vma | |
9271 | + splt->output_offset), | |
9272 | sgot->contents + got_offset); | |
9273 | ||
00a97672 RS |
9274 | /* Fill in the entry in the .rel(a).plt section. */ |
9275 | rel.r_addend = 0; | |
9276 | rel.r_offset = got_address; | |
e5a52504 MM |
9277 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_JUMP_SLOT); |
9278 | } | |
57e8b36a | 9279 | |
00a97672 RS |
9280 | loc = srel->contents + plt_index * RELOC_SIZE (htab); |
9281 | SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc); | |
252b5132 | 9282 | |
f5385ebf | 9283 | if (!h->def_regular) |
252b5132 RH |
9284 | { |
9285 | /* Mark the symbol as undefined, rather than as defined in | |
9286 | the .plt section. Leave the value alone. */ | |
9287 | sym->st_shndx = SHN_UNDEF; | |
d982ba73 PB |
9288 | /* If the symbol is weak, we do need to clear the value. |
9289 | Otherwise, the PLT entry would provide a definition for | |
9290 | the symbol even if the symbol wasn't defined anywhere, | |
9291 | and so the symbol would never be NULL. */ | |
f5385ebf | 9292 | if (!h->ref_regular_nonweak) |
d982ba73 | 9293 | sym->st_value = 0; |
252b5132 RH |
9294 | } |
9295 | } | |
9296 | ||
ba93b8ac DJ |
9297 | if (h->got.offset != (bfd_vma) -1 |
9298 | && (elf32_arm_hash_entry (h)->tls_type & GOT_TLS_GD) == 0 | |
9299 | && (elf32_arm_hash_entry (h)->tls_type & GOT_TLS_IE) == 0) | |
252b5132 RH |
9300 | { |
9301 | asection * sgot; | |
9302 | asection * srel; | |
947216bf AM |
9303 | Elf_Internal_Rela rel; |
9304 | bfd_byte *loc; | |
00a97672 | 9305 | bfd_vma offset; |
252b5132 RH |
9306 | |
9307 | /* This symbol has an entry in the global offset table. Set it | |
9308 | up. */ | |
252b5132 | 9309 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
00a97672 | 9310 | srel = bfd_get_section_by_name (dynobj, RELOC_SECTION (htab, ".got")); |
252b5132 RH |
9311 | BFD_ASSERT (sgot != NULL && srel != NULL); |
9312 | ||
00a97672 RS |
9313 | offset = (h->got.offset & ~(bfd_vma) 1); |
9314 | rel.r_addend = 0; | |
252b5132 RH |
9315 | rel.r_offset = (sgot->output_section->vma |
9316 | + sgot->output_offset | |
00a97672 | 9317 | + offset); |
252b5132 | 9318 | |
5e681ec4 PB |
9319 | /* If this is a static link, or it is a -Bsymbolic link and the |
9320 | symbol is defined locally or was forced to be local because | |
9321 | of a version file, we just want to emit a RELATIVE reloc. | |
9322 | The entry in the global offset table will already have been | |
9323 | initialized in the relocate_section function. */ | |
252b5132 | 9324 | if (info->shared |
5e681ec4 PB |
9325 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
9326 | { | |
9327 | BFD_ASSERT((h->got.offset & 1) != 0); | |
9328 | rel.r_info = ELF32_R_INFO (0, R_ARM_RELATIVE); | |
00a97672 RS |
9329 | if (!htab->use_rel) |
9330 | { | |
9331 | rel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset); | |
9332 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + offset); | |
9333 | } | |
5e681ec4 | 9334 | } |
252b5132 RH |
9335 | else |
9336 | { | |
5e681ec4 | 9337 | BFD_ASSERT((h->got.offset & 1) == 0); |
00a97672 | 9338 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + offset); |
252b5132 RH |
9339 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_GLOB_DAT); |
9340 | } | |
9341 | ||
00a97672 RS |
9342 | loc = srel->contents + srel->reloc_count++ * RELOC_SIZE (htab); |
9343 | SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc); | |
252b5132 RH |
9344 | } |
9345 | ||
f5385ebf | 9346 | if (h->needs_copy) |
252b5132 RH |
9347 | { |
9348 | asection * s; | |
947216bf AM |
9349 | Elf_Internal_Rela rel; |
9350 | bfd_byte *loc; | |
252b5132 RH |
9351 | |
9352 | /* This symbol needs a copy reloc. Set it up. */ | |
252b5132 RH |
9353 | BFD_ASSERT (h->dynindx != -1 |
9354 | && (h->root.type == bfd_link_hash_defined | |
9355 | || h->root.type == bfd_link_hash_defweak)); | |
9356 | ||
9357 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
00a97672 | 9358 | RELOC_SECTION (htab, ".bss")); |
252b5132 RH |
9359 | BFD_ASSERT (s != NULL); |
9360 | ||
00a97672 | 9361 | rel.r_addend = 0; |
252b5132 RH |
9362 | rel.r_offset = (h->root.u.def.value |
9363 | + h->root.u.def.section->output_section->vma | |
9364 | + h->root.u.def.section->output_offset); | |
9365 | rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_COPY); | |
00a97672 RS |
9366 | loc = s->contents + s->reloc_count++ * RELOC_SIZE (htab); |
9367 | SWAP_RELOC_OUT (htab) (output_bfd, &rel, loc); | |
252b5132 RH |
9368 | } |
9369 | ||
00a97672 RS |
9370 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks, |
9371 | the _GLOBAL_OFFSET_TABLE_ symbol is not absolute: it is relative | |
9372 | to the ".got" section. */ | |
252b5132 | 9373 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
00a97672 | 9374 | || (!htab->vxworks_p && h == htab->root.hgot)) |
252b5132 RH |
9375 | sym->st_shndx = SHN_ABS; |
9376 | ||
b34976b6 | 9377 | return TRUE; |
252b5132 RH |
9378 | } |
9379 | ||
9380 | /* Finish up the dynamic sections. */ | |
9381 | ||
b34976b6 | 9382 | static bfd_boolean |
57e8b36a | 9383 | elf32_arm_finish_dynamic_sections (bfd * output_bfd, struct bfd_link_info * info) |
252b5132 RH |
9384 | { |
9385 | bfd * dynobj; | |
9386 | asection * sgot; | |
9387 | asection * sdyn; | |
9388 | ||
9389 | dynobj = elf_hash_table (info)->dynobj; | |
9390 | ||
9391 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
229fcec5 | 9392 | BFD_ASSERT (elf32_arm_hash_table (info)->symbian_p || sgot != NULL); |
252b5132 RH |
9393 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
9394 | ||
9395 | if (elf_hash_table (info)->dynamic_sections_created) | |
9396 | { | |
9397 | asection *splt; | |
9398 | Elf32_External_Dyn *dyncon, *dynconend; | |
229fcec5 | 9399 | struct elf32_arm_link_hash_table *htab; |
252b5132 | 9400 | |
229fcec5 | 9401 | htab = elf32_arm_hash_table (info); |
252b5132 | 9402 | splt = bfd_get_section_by_name (dynobj, ".plt"); |
24a1ba0f | 9403 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
252b5132 RH |
9404 | |
9405 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 9406 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
9b485d32 | 9407 | |
252b5132 RH |
9408 | for (; dyncon < dynconend; dyncon++) |
9409 | { | |
9410 | Elf_Internal_Dyn dyn; | |
9411 | const char * name; | |
9412 | asection * s; | |
9413 | ||
9414 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
9415 | ||
9416 | switch (dyn.d_tag) | |
9417 | { | |
229fcec5 MM |
9418 | unsigned int type; |
9419 | ||
252b5132 RH |
9420 | default: |
9421 | break; | |
9422 | ||
229fcec5 MM |
9423 | case DT_HASH: |
9424 | name = ".hash"; | |
9425 | goto get_vma_if_bpabi; | |
9426 | case DT_STRTAB: | |
9427 | name = ".dynstr"; | |
9428 | goto get_vma_if_bpabi; | |
9429 | case DT_SYMTAB: | |
9430 | name = ".dynsym"; | |
9431 | goto get_vma_if_bpabi; | |
c0042f5d MM |
9432 | case DT_VERSYM: |
9433 | name = ".gnu.version"; | |
9434 | goto get_vma_if_bpabi; | |
9435 | case DT_VERDEF: | |
9436 | name = ".gnu.version_d"; | |
9437 | goto get_vma_if_bpabi; | |
9438 | case DT_VERNEED: | |
9439 | name = ".gnu.version_r"; | |
9440 | goto get_vma_if_bpabi; | |
9441 | ||
252b5132 RH |
9442 | case DT_PLTGOT: |
9443 | name = ".got"; | |
9444 | goto get_vma; | |
9445 | case DT_JMPREL: | |
00a97672 | 9446 | name = RELOC_SECTION (htab, ".plt"); |
252b5132 RH |
9447 | get_vma: |
9448 | s = bfd_get_section_by_name (output_bfd, name); | |
9449 | BFD_ASSERT (s != NULL); | |
229fcec5 MM |
9450 | if (!htab->symbian_p) |
9451 | dyn.d_un.d_ptr = s->vma; | |
9452 | else | |
9453 | /* In the BPABI, tags in the PT_DYNAMIC section point | |
9454 | at the file offset, not the memory address, for the | |
9455 | convenience of the post linker. */ | |
9456 | dyn.d_un.d_ptr = s->filepos; | |
252b5132 RH |
9457 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
9458 | break; | |
9459 | ||
229fcec5 MM |
9460 | get_vma_if_bpabi: |
9461 | if (htab->symbian_p) | |
9462 | goto get_vma; | |
9463 | break; | |
9464 | ||
252b5132 | 9465 | case DT_PLTRELSZ: |
00a97672 RS |
9466 | s = bfd_get_section_by_name (output_bfd, |
9467 | RELOC_SECTION (htab, ".plt")); | |
252b5132 | 9468 | BFD_ASSERT (s != NULL); |
eea6121a | 9469 | dyn.d_un.d_val = s->size; |
252b5132 RH |
9470 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
9471 | break; | |
229fcec5 | 9472 | |
252b5132 | 9473 | case DT_RELSZ: |
00a97672 | 9474 | case DT_RELASZ: |
229fcec5 MM |
9475 | if (!htab->symbian_p) |
9476 | { | |
9477 | /* My reading of the SVR4 ABI indicates that the | |
9478 | procedure linkage table relocs (DT_JMPREL) should be | |
9479 | included in the overall relocs (DT_REL). This is | |
9480 | what Solaris does. However, UnixWare can not handle | |
9481 | that case. Therefore, we override the DT_RELSZ entry | |
9482 | here to make it not include the JMPREL relocs. Since | |
00a97672 | 9483 | the linker script arranges for .rel(a).plt to follow all |
229fcec5 MM |
9484 | other relocation sections, we don't have to worry |
9485 | about changing the DT_REL entry. */ | |
00a97672 RS |
9486 | s = bfd_get_section_by_name (output_bfd, |
9487 | RELOC_SECTION (htab, ".plt")); | |
229fcec5 MM |
9488 | if (s != NULL) |
9489 | dyn.d_un.d_val -= s->size; | |
9490 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
9491 | break; | |
9492 | } | |
9493 | /* Fall through */ | |
9494 | ||
9495 | case DT_REL: | |
9496 | case DT_RELA: | |
229fcec5 MM |
9497 | /* In the BPABI, the DT_REL tag must point at the file |
9498 | offset, not the VMA, of the first relocation | |
9499 | section. So, we use code similar to that in | |
9500 | elflink.c, but do not check for SHF_ALLOC on the | |
9501 | relcoation section, since relocations sections are | |
9502 | never allocated under the BPABI. The comments above | |
9503 | about Unixware notwithstanding, we include all of the | |
9504 | relocations here. */ | |
9505 | if (htab->symbian_p) | |
9506 | { | |
9507 | unsigned int i; | |
9508 | type = ((dyn.d_tag == DT_REL || dyn.d_tag == DT_RELSZ) | |
9509 | ? SHT_REL : SHT_RELA); | |
9510 | dyn.d_un.d_val = 0; | |
9511 | for (i = 1; i < elf_numsections (output_bfd); i++) | |
9512 | { | |
9513 | Elf_Internal_Shdr *hdr | |
9514 | = elf_elfsections (output_bfd)[i]; | |
9515 | if (hdr->sh_type == type) | |
9516 | { | |
9517 | if (dyn.d_tag == DT_RELSZ | |
9518 | || dyn.d_tag == DT_RELASZ) | |
9519 | dyn.d_un.d_val += hdr->sh_size; | |
de52dba4 AM |
9520 | else if ((ufile_ptr) hdr->sh_offset |
9521 | <= dyn.d_un.d_val - 1) | |
229fcec5 MM |
9522 | dyn.d_un.d_val = hdr->sh_offset; |
9523 | } | |
9524 | } | |
9525 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
9526 | } | |
252b5132 | 9527 | break; |
88f7bcd5 NC |
9528 | |
9529 | /* Set the bottom bit of DT_INIT/FINI if the | |
9530 | corresponding function is Thumb. */ | |
9531 | case DT_INIT: | |
9532 | name = info->init_function; | |
9533 | goto get_sym; | |
9534 | case DT_FINI: | |
9535 | name = info->fini_function; | |
9536 | get_sym: | |
9537 | /* If it wasn't set by elf_bfd_final_link | |
4cc11e76 | 9538 | then there is nothing to adjust. */ |
88f7bcd5 NC |
9539 | if (dyn.d_un.d_val != 0) |
9540 | { | |
9541 | struct elf_link_hash_entry * eh; | |
9542 | ||
9543 | eh = elf_link_hash_lookup (elf_hash_table (info), name, | |
b34976b6 | 9544 | FALSE, FALSE, TRUE); |
88f7bcd5 NC |
9545 | if (eh != (struct elf_link_hash_entry *) NULL |
9546 | && ELF_ST_TYPE (eh->type) == STT_ARM_TFUNC) | |
9547 | { | |
9548 | dyn.d_un.d_val |= 1; | |
b34976b6 | 9549 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
88f7bcd5 NC |
9550 | } |
9551 | } | |
9552 | break; | |
252b5132 RH |
9553 | } |
9554 | } | |
9555 | ||
24a1ba0f | 9556 | /* Fill in the first entry in the procedure linkage table. */ |
e5a52504 | 9557 | if (splt->size > 0 && elf32_arm_hash_table (info)->plt_header_size) |
f7a74f8c | 9558 | { |
00a97672 RS |
9559 | const bfd_vma *plt0_entry; |
9560 | bfd_vma got_address, plt_address, got_displacement; | |
9561 | ||
9562 | /* Calculate the addresses of the GOT and PLT. */ | |
9563 | got_address = sgot->output_section->vma + sgot->output_offset; | |
9564 | plt_address = splt->output_section->vma + splt->output_offset; | |
9565 | ||
9566 | if (htab->vxworks_p) | |
9567 | { | |
9568 | /* The VxWorks GOT is relocated by the dynamic linker. | |
9569 | Therefore, we must emit relocations rather than simply | |
9570 | computing the values now. */ | |
9571 | Elf_Internal_Rela rel; | |
9572 | ||
9573 | plt0_entry = elf32_arm_vxworks_exec_plt0_entry; | |
52ab56c2 PB |
9574 | put_arm_insn (htab, output_bfd, plt0_entry[0], |
9575 | splt->contents + 0); | |
9576 | put_arm_insn (htab, output_bfd, plt0_entry[1], | |
9577 | splt->contents + 4); | |
9578 | put_arm_insn (htab, output_bfd, plt0_entry[2], | |
9579 | splt->contents + 8); | |
00a97672 RS |
9580 | bfd_put_32 (output_bfd, got_address, splt->contents + 12); |
9581 | ||
9582 | /* Generate a relocation for _GLOBAL_OFFSET_TABLE_. */ | |
9583 | rel.r_offset = plt_address + 12; | |
9584 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_ARM_ABS32); | |
9585 | rel.r_addend = 0; | |
9586 | SWAP_RELOC_OUT (htab) (output_bfd, &rel, | |
9587 | htab->srelplt2->contents); | |
9588 | } | |
9589 | else | |
9590 | { | |
9591 | got_displacement = got_address - (plt_address + 16); | |
9592 | ||
9593 | plt0_entry = elf32_arm_plt0_entry; | |
52ab56c2 PB |
9594 | put_arm_insn (htab, output_bfd, plt0_entry[0], |
9595 | splt->contents + 0); | |
9596 | put_arm_insn (htab, output_bfd, plt0_entry[1], | |
9597 | splt->contents + 4); | |
9598 | put_arm_insn (htab, output_bfd, plt0_entry[2], | |
9599 | splt->contents + 8); | |
9600 | put_arm_insn (htab, output_bfd, plt0_entry[3], | |
9601 | splt->contents + 12); | |
5e681ec4 | 9602 | |
5e681ec4 | 9603 | #ifdef FOUR_WORD_PLT |
00a97672 RS |
9604 | /* The displacement value goes in the otherwise-unused |
9605 | last word of the second entry. */ | |
9606 | bfd_put_32 (output_bfd, got_displacement, splt->contents + 28); | |
5e681ec4 | 9607 | #else |
00a97672 | 9608 | bfd_put_32 (output_bfd, got_displacement, splt->contents + 16); |
5e681ec4 | 9609 | #endif |
00a97672 | 9610 | } |
f7a74f8c | 9611 | } |
252b5132 RH |
9612 | |
9613 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
9614 | really seem like the right value. */ | |
74541ad4 AM |
9615 | if (splt->output_section->owner == output_bfd) |
9616 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
00a97672 RS |
9617 | |
9618 | if (htab->vxworks_p && !info->shared && htab->splt->size > 0) | |
9619 | { | |
9620 | /* Correct the .rel(a).plt.unloaded relocations. They will have | |
9621 | incorrect symbol indexes. */ | |
9622 | int num_plts; | |
eed62c48 | 9623 | unsigned char *p; |
00a97672 RS |
9624 | |
9625 | num_plts = ((htab->splt->size - htab->plt_header_size) | |
9626 | / htab->plt_entry_size); | |
9627 | p = htab->srelplt2->contents + RELOC_SIZE (htab); | |
9628 | ||
9629 | for (; num_plts; num_plts--) | |
9630 | { | |
9631 | Elf_Internal_Rela rel; | |
9632 | ||
9633 | SWAP_RELOC_IN (htab) (output_bfd, p, &rel); | |
9634 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_ARM_ABS32); | |
9635 | SWAP_RELOC_OUT (htab) (output_bfd, &rel, p); | |
9636 | p += RELOC_SIZE (htab); | |
9637 | ||
9638 | SWAP_RELOC_IN (htab) (output_bfd, p, &rel); | |
9639 | rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_ARM_ABS32); | |
9640 | SWAP_RELOC_OUT (htab) (output_bfd, &rel, p); | |
9641 | p += RELOC_SIZE (htab); | |
9642 | } | |
9643 | } | |
252b5132 RH |
9644 | } |
9645 | ||
9646 | /* Fill in the first three entries in the global offset table. */ | |
229fcec5 | 9647 | if (sgot) |
252b5132 | 9648 | { |
229fcec5 MM |
9649 | if (sgot->size > 0) |
9650 | { | |
9651 | if (sdyn == NULL) | |
9652 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
9653 | else | |
9654 | bfd_put_32 (output_bfd, | |
9655 | sdyn->output_section->vma + sdyn->output_offset, | |
9656 | sgot->contents); | |
9657 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
9658 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
9659 | } | |
252b5132 | 9660 | |
229fcec5 MM |
9661 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
9662 | } | |
252b5132 | 9663 | |
b34976b6 | 9664 | return TRUE; |
252b5132 RH |
9665 | } |
9666 | ||
ba96a88f | 9667 | static void |
57e8b36a | 9668 | elf32_arm_post_process_headers (bfd * abfd, struct bfd_link_info * link_info ATTRIBUTE_UNUSED) |
ba96a88f | 9669 | { |
9b485d32 | 9670 | Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */ |
e489d0ae | 9671 | struct elf32_arm_link_hash_table *globals; |
ba96a88f NC |
9672 | |
9673 | i_ehdrp = elf_elfheader (abfd); | |
9674 | ||
94a3258f PB |
9675 | if (EF_ARM_EABI_VERSION (i_ehdrp->e_flags) == EF_ARM_EABI_UNKNOWN) |
9676 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_ARM; | |
9677 | else | |
9678 | i_ehdrp->e_ident[EI_OSABI] = 0; | |
ba96a88f | 9679 | i_ehdrp->e_ident[EI_ABIVERSION] = ARM_ELF_ABI_VERSION; |
e489d0ae | 9680 | |
93204d3a PB |
9681 | if (link_info) |
9682 | { | |
9683 | globals = elf32_arm_hash_table (link_info); | |
9684 | if (globals->byteswap_code) | |
9685 | i_ehdrp->e_flags |= EF_ARM_BE8; | |
9686 | } | |
ba96a88f NC |
9687 | } |
9688 | ||
99e4ae17 | 9689 | static enum elf_reloc_type_class |
57e8b36a | 9690 | elf32_arm_reloc_type_class (const Elf_Internal_Rela *rela) |
99e4ae17 | 9691 | { |
f51e552e | 9692 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
99e4ae17 AJ |
9693 | { |
9694 | case R_ARM_RELATIVE: | |
9695 | return reloc_class_relative; | |
9696 | case R_ARM_JUMP_SLOT: | |
9697 | return reloc_class_plt; | |
9698 | case R_ARM_COPY: | |
9699 | return reloc_class_copy; | |
9700 | default: | |
9701 | return reloc_class_normal; | |
9702 | } | |
9703 | } | |
9704 | ||
e16bb312 NC |
9705 | /* Set the right machine number for an Arm ELF file. */ |
9706 | ||
9707 | static bfd_boolean | |
57e8b36a | 9708 | elf32_arm_section_flags (flagword *flags, const Elf_Internal_Shdr *hdr) |
e16bb312 NC |
9709 | { |
9710 | if (hdr->sh_type == SHT_NOTE) | |
9711 | *flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_CONTENTS; | |
9712 | ||
9713 | return TRUE; | |
9714 | } | |
9715 | ||
e489d0ae | 9716 | static void |
57e8b36a | 9717 | elf32_arm_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) |
e16bb312 | 9718 | { |
5a6c6817 | 9719 | bfd_arm_update_notes (abfd, ARM_NOTE_SECTION); |
e16bb312 NC |
9720 | } |
9721 | ||
40a18ebd NC |
9722 | /* Return TRUE if this is an unwinding table entry. */ |
9723 | ||
9724 | static bfd_boolean | |
9725 | is_arm_elf_unwind_section_name (bfd * abfd ATTRIBUTE_UNUSED, const char * name) | |
9726 | { | |
0112cd26 NC |
9727 | return (CONST_STRNEQ (name, ELF_STRING_ARM_unwind) |
9728 | || CONST_STRNEQ (name, ELF_STRING_ARM_unwind_once)); | |
40a18ebd NC |
9729 | } |
9730 | ||
9731 | ||
9732 | /* Set the type and flags for an ARM section. We do this by | |
9733 | the section name, which is a hack, but ought to work. */ | |
9734 | ||
9735 | static bfd_boolean | |
9736 | elf32_arm_fake_sections (bfd * abfd, Elf_Internal_Shdr * hdr, asection * sec) | |
9737 | { | |
9738 | const char * name; | |
9739 | ||
9740 | name = bfd_get_section_name (abfd, sec); | |
9741 | ||
9742 | if (is_arm_elf_unwind_section_name (abfd, name)) | |
9743 | { | |
9744 | hdr->sh_type = SHT_ARM_EXIDX; | |
9745 | hdr->sh_flags |= SHF_LINK_ORDER; | |
9746 | } | |
ee065d83 PB |
9747 | else if (strcmp(name, ".ARM.attributes") == 0) |
9748 | { | |
9749 | hdr->sh_type = SHT_ARM_ATTRIBUTES; | |
9750 | } | |
40a18ebd NC |
9751 | return TRUE; |
9752 | } | |
9753 | ||
ee065d83 PB |
9754 | /* Parse an Arm EABI attributes section. */ |
9755 | static void | |
9756 | elf32_arm_parse_attributes (bfd *abfd, Elf_Internal_Shdr * hdr) | |
9757 | { | |
9758 | bfd_byte *contents; | |
9759 | bfd_byte *p; | |
9760 | bfd_vma len; | |
9761 | ||
9762 | contents = bfd_malloc (hdr->sh_size); | |
9763 | if (!contents) | |
9764 | return; | |
9765 | if (!bfd_get_section_contents (abfd, hdr->bfd_section, contents, 0, | |
9766 | hdr->sh_size)) | |
9767 | { | |
9768 | free (contents); | |
9769 | return; | |
9770 | } | |
9771 | p = contents; | |
9772 | if (*(p++) == 'A') | |
9773 | { | |
9774 | len = hdr->sh_size - 1; | |
9775 | while (len > 0) | |
9776 | { | |
9777 | int namelen; | |
9778 | bfd_vma section_len; | |
9779 | ||
9780 | section_len = bfd_get_32 (abfd, p); | |
9781 | p += 4; | |
9782 | if (section_len > len) | |
9783 | section_len = len; | |
9784 | len -= section_len; | |
9785 | namelen = strlen ((char *)p) + 1; | |
9786 | section_len -= namelen + 4; | |
9787 | if (strcmp((char *)p, "aeabi") != 0) | |
9788 | { | |
9789 | /* Vendor section. Ignore it. */ | |
9790 | p += namelen + section_len; | |
9791 | } | |
9792 | else | |
9793 | { | |
9794 | p += namelen; | |
9795 | while (section_len > 0) | |
9796 | { | |
9797 | int tag; | |
9798 | unsigned int n; | |
9799 | unsigned int val; | |
9800 | bfd_vma subsection_len; | |
9801 | bfd_byte *end; | |
9802 | ||
9803 | tag = read_unsigned_leb128 (abfd, p, &n); | |
9804 | p += n; | |
9805 | subsection_len = bfd_get_32 (abfd, p); | |
9806 | p += 4; | |
9807 | if (subsection_len > section_len) | |
9808 | subsection_len = section_len; | |
9809 | section_len -= subsection_len; | |
9810 | subsection_len -= n + 4; | |
9811 | end = p + subsection_len; | |
9812 | switch (tag) | |
9813 | { | |
9814 | case Tag_File: | |
9815 | while (p < end) | |
9816 | { | |
9817 | bfd_boolean is_string; | |
9818 | ||
9819 | tag = read_unsigned_leb128 (abfd, p, &n); | |
9820 | p += n; | |
9821 | if (tag == 4 || tag == 5) | |
9822 | is_string = 1; | |
9823 | else if (tag < 32) | |
9824 | is_string = 0; | |
9825 | else | |
9826 | is_string = (tag & 1) != 0; | |
9827 | if (tag == Tag_compatibility) | |
9828 | { | |
9829 | val = read_unsigned_leb128 (abfd, p, &n); | |
9830 | p += n; | |
9831 | elf32_arm_add_eabi_attr_compat (abfd, val, | |
9832 | (char *)p); | |
9833 | p += strlen ((char *)p) + 1; | |
9834 | } | |
9835 | else if (is_string) | |
9836 | { | |
9837 | elf32_arm_add_eabi_attr_string (abfd, tag, | |
9838 | (char *)p); | |
9839 | p += strlen ((char *)p) + 1; | |
9840 | } | |
9841 | else | |
9842 | { | |
9843 | val = read_unsigned_leb128 (abfd, p, &n); | |
9844 | p += n; | |
9845 | elf32_arm_add_eabi_attr_int (abfd, tag, val); | |
9846 | } | |
9847 | } | |
9848 | break; | |
9849 | case Tag_Section: | |
9850 | case Tag_Symbol: | |
9851 | /* Don't have anywhere convenient to attach these. | |
9852 | Fall through for now. */ | |
9853 | default: | |
9854 | /* Ignore things we don't kow about. */ | |
9855 | p += subsection_len; | |
9856 | subsection_len = 0; | |
9857 | break; | |
9858 | } | |
9859 | } | |
9860 | } | |
9861 | } | |
9862 | } | |
9863 | free (contents); | |
9864 | } | |
9865 | ||
6dc132d9 L |
9866 | /* Handle an ARM specific section when reading an object file. This is |
9867 | called when bfd_section_from_shdr finds a section with an unknown | |
9868 | type. */ | |
40a18ebd NC |
9869 | |
9870 | static bfd_boolean | |
9871 | elf32_arm_section_from_shdr (bfd *abfd, | |
9872 | Elf_Internal_Shdr * hdr, | |
6dc132d9 L |
9873 | const char *name, |
9874 | int shindex) | |
40a18ebd NC |
9875 | { |
9876 | /* There ought to be a place to keep ELF backend specific flags, but | |
9877 | at the moment there isn't one. We just keep track of the | |
9878 | sections by their name, instead. Fortunately, the ABI gives | |
9879 | names for all the ARM specific sections, so we will probably get | |
9880 | away with this. */ | |
9881 | switch (hdr->sh_type) | |
9882 | { | |
9883 | case SHT_ARM_EXIDX: | |
0951f019 RE |
9884 | case SHT_ARM_PREEMPTMAP: |
9885 | case SHT_ARM_ATTRIBUTES: | |
40a18ebd NC |
9886 | break; |
9887 | ||
9888 | default: | |
9889 | return FALSE; | |
9890 | } | |
9891 | ||
6dc132d9 | 9892 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
40a18ebd NC |
9893 | return FALSE; |
9894 | ||
ee065d83 PB |
9895 | if (hdr->sh_type == SHT_ARM_ATTRIBUTES) |
9896 | elf32_arm_parse_attributes(abfd, hdr); | |
40a18ebd NC |
9897 | return TRUE; |
9898 | } | |
e489d0ae | 9899 | |
8e3de13a NC |
9900 | /* A structure used to record a list of sections, independently |
9901 | of the next and prev fields in the asection structure. */ | |
9902 | typedef struct section_list | |
9903 | { | |
9904 | asection * sec; | |
9905 | struct section_list * next; | |
9906 | struct section_list * prev; | |
9907 | } | |
9908 | section_list; | |
9909 | ||
9910 | /* Unfortunately we need to keep a list of sections for which | |
9911 | an _arm_elf_section_data structure has been allocated. This | |
9912 | is because it is possible for functions like elf32_arm_write_section | |
9913 | to be called on a section which has had an elf_data_structure | |
9914 | allocated for it (and so the used_by_bfd field is valid) but | |
9915 | for which the ARM extended version of this structure - the | |
9916 | _arm_elf_section_data structure - has not been allocated. */ | |
9917 | static section_list * sections_with_arm_elf_section_data = NULL; | |
9918 | ||
9919 | static void | |
957c6e41 | 9920 | record_section_with_arm_elf_section_data (asection * sec) |
8e3de13a NC |
9921 | { |
9922 | struct section_list * entry; | |
9923 | ||
957c6e41 | 9924 | entry = bfd_malloc (sizeof (* entry)); |
8e3de13a NC |
9925 | if (entry == NULL) |
9926 | return; | |
9927 | entry->sec = sec; | |
9928 | entry->next = sections_with_arm_elf_section_data; | |
9929 | entry->prev = NULL; | |
9930 | if (entry->next != NULL) | |
9931 | entry->next->prev = entry; | |
9932 | sections_with_arm_elf_section_data = entry; | |
9933 | } | |
9934 | ||
44444f50 NC |
9935 | static struct section_list * |
9936 | find_arm_elf_section_entry (asection * sec) | |
8e3de13a NC |
9937 | { |
9938 | struct section_list * entry; | |
bd4aae00 | 9939 | static struct section_list * last_entry = NULL; |
8e3de13a | 9940 | |
bd4aae00 NC |
9941 | /* This is a short cut for the typical case where the sections are added |
9942 | to the sections_with_arm_elf_section_data list in forward order and | |
9943 | then looked up here in backwards order. This makes a real difference | |
9944 | to the ld-srec/sec64k.exp linker test. */ | |
44444f50 | 9945 | entry = sections_with_arm_elf_section_data; |
bd4aae00 NC |
9946 | if (last_entry != NULL) |
9947 | { | |
9948 | if (last_entry->sec == sec) | |
44444f50 NC |
9949 | entry = last_entry; |
9950 | else if (last_entry->next != NULL | |
9951 | && last_entry->next->sec == sec) | |
9952 | entry = last_entry->next; | |
bd4aae00 | 9953 | } |
44444f50 NC |
9954 | |
9955 | for (; entry; entry = entry->next) | |
8e3de13a | 9956 | if (entry->sec == sec) |
44444f50 | 9957 | break; |
bd4aae00 | 9958 | |
44444f50 NC |
9959 | if (entry) |
9960 | /* Record the entry prior to this one - it is the entry we are most | |
9961 | likely to want to locate next time. Also this way if we have been | |
9962 | called from unrecord_section_with_arm_elf_section_data() we will not | |
9963 | be caching a pointer that is about to be freed. */ | |
9964 | last_entry = entry->prev; | |
9965 | ||
9966 | return entry; | |
9967 | } | |
9968 | ||
9969 | static _arm_elf_section_data * | |
9970 | get_arm_elf_section_data (asection * sec) | |
9971 | { | |
9972 | struct section_list * entry; | |
9973 | ||
9974 | entry = find_arm_elf_section_entry (sec); | |
9975 | ||
9976 | if (entry) | |
9977 | return elf32_arm_section_data (entry->sec); | |
9978 | else | |
9979 | return NULL; | |
8e3de13a NC |
9980 | } |
9981 | ||
9982 | static void | |
9983 | unrecord_section_with_arm_elf_section_data (asection * sec) | |
9984 | { | |
9985 | struct section_list * entry; | |
9986 | ||
44444f50 NC |
9987 | entry = find_arm_elf_section_entry (sec); |
9988 | ||
9989 | if (entry) | |
9990 | { | |
9991 | if (entry->prev != NULL) | |
9992 | entry->prev->next = entry->next; | |
9993 | if (entry->next != NULL) | |
9994 | entry->next->prev = entry->prev; | |
9995 | if (entry == sections_with_arm_elf_section_data) | |
9996 | sections_with_arm_elf_section_data = entry->next; | |
9997 | free (entry); | |
9998 | } | |
8e3de13a NC |
9999 | } |
10000 | ||
e489d0ae | 10001 | |
4e617b1e PB |
10002 | typedef struct |
10003 | { | |
10004 | void *finfo; | |
10005 | struct bfd_link_info *info; | |
10006 | int plt_shndx; | |
10007 | bfd_vma plt_offset; | |
10008 | bfd_boolean (*func) (void *, const char *, Elf_Internal_Sym *, | |
10009 | asection *, struct elf_link_hash_entry *); | |
10010 | } output_arch_syminfo; | |
10011 | ||
10012 | enum map_symbol_type | |
10013 | { | |
10014 | ARM_MAP_ARM, | |
10015 | ARM_MAP_THUMB, | |
10016 | ARM_MAP_DATA | |
10017 | }; | |
10018 | ||
10019 | ||
10020 | /* Output a single PLT mapping symbol. */ | |
10021 | ||
10022 | static bfd_boolean | |
10023 | elf32_arm_ouput_plt_map_sym (output_arch_syminfo *osi, | |
10024 | enum map_symbol_type type, | |
10025 | bfd_vma offset) | |
10026 | { | |
10027 | static const char *names[3] = {"$a", "$t", "$d"}; | |
10028 | struct elf32_arm_link_hash_table *htab; | |
10029 | Elf_Internal_Sym sym; | |
10030 | ||
10031 | htab = elf32_arm_hash_table (osi->info); | |
10032 | sym.st_value = osi->plt_offset + offset; | |
10033 | sym.st_size = 0; | |
10034 | sym.st_other = 0; | |
10035 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE); | |
10036 | sym.st_shndx = osi->plt_shndx; | |
10037 | if (!osi->func (osi->finfo, names[type], &sym, htab->splt, NULL)) | |
10038 | return FALSE; | |
10039 | return TRUE; | |
10040 | } | |
10041 | ||
10042 | ||
10043 | /* Output mapping symbols for PLT entries associated with H. */ | |
10044 | ||
10045 | static bfd_boolean | |
10046 | elf32_arm_output_plt_map (struct elf_link_hash_entry *h, void *inf) | |
10047 | { | |
10048 | output_arch_syminfo *osi = (output_arch_syminfo *) inf; | |
10049 | struct elf32_arm_link_hash_table *htab; | |
10050 | struct elf32_arm_link_hash_entry *eh; | |
10051 | bfd_vma addr; | |
10052 | ||
10053 | htab = elf32_arm_hash_table (osi->info); | |
10054 | ||
10055 | if (h->root.type == bfd_link_hash_indirect) | |
10056 | return TRUE; | |
10057 | ||
10058 | if (h->root.type == bfd_link_hash_warning) | |
10059 | /* When warning symbols are created, they **replace** the "real" | |
10060 | entry in the hash table, thus we never get to see the real | |
10061 | symbol in a hash traversal. So look at it now. */ | |
10062 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
10063 | ||
10064 | if (h->plt.offset == (bfd_vma) -1) | |
10065 | return TRUE; | |
10066 | ||
10067 | eh = (struct elf32_arm_link_hash_entry *) h; | |
10068 | addr = h->plt.offset; | |
10069 | if (htab->symbian_p) | |
10070 | { | |
10071 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr)) | |
10072 | return FALSE; | |
10073 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 4)) | |
10074 | return FALSE; | |
10075 | } | |
10076 | else if (htab->vxworks_p) | |
10077 | { | |
10078 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr)) | |
10079 | return FALSE; | |
10080 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 8)) | |
10081 | return FALSE; | |
10082 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr + 12)) | |
10083 | return FALSE; | |
10084 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 20)) | |
10085 | return FALSE; | |
10086 | } | |
10087 | else | |
10088 | { | |
10089 | bfd_boolean thumb_stub; | |
10090 | ||
10091 | thumb_stub = eh->plt_thumb_refcount > 0 && !htab->use_blx; | |
10092 | if (thumb_stub) | |
10093 | { | |
10094 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_THUMB, addr - 4)) | |
10095 | return FALSE; | |
10096 | } | |
10097 | #ifdef FOUR_WORD_PLT | |
10098 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr)) | |
10099 | return FALSE; | |
10100 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_DATA, addr + 12)) | |
10101 | return FALSE; | |
10102 | #else | |
10103 | /* A three-word PLT with no Thumb thunk contains only Arm code, | |
10104 | so only need to output a mapping symbol for the first PLT entry and | |
10105 | entries with thumb thunks. */ | |
10106 | if (thumb_stub || addr == 20) | |
10107 | { | |
10108 | if (!elf32_arm_ouput_plt_map_sym (osi, ARM_MAP_ARM, addr)) | |
10109 | return FALSE; | |
10110 | } | |
10111 | #endif | |
10112 | } | |
10113 | ||
10114 | return TRUE; | |
10115 | } | |
10116 | ||
10117 | ||
10118 | /* Output mapping symbols for the PLT. */ | |
10119 | ||
10120 | static bfd_boolean | |
10121 | elf32_arm_output_arch_local_syms (bfd *output_bfd, | |
10122 | struct bfd_link_info *info, | |
10123 | void *finfo, bfd_boolean (*func) (void *, const char *, | |
10124 | Elf_Internal_Sym *, | |
10125 | asection *, | |
10126 | struct elf_link_hash_entry *)) | |
10127 | { | |
10128 | output_arch_syminfo osi; | |
10129 | struct elf32_arm_link_hash_table *htab; | |
10130 | ||
10131 | htab = elf32_arm_hash_table (info); | |
10132 | if (!htab->splt || htab->splt->size == 0) | |
10133 | return TRUE; | |
10134 | ||
10135 | check_use_blx(htab); | |
10136 | osi.finfo = finfo; | |
10137 | osi.info = info; | |
10138 | osi.func = func; | |
10139 | osi.plt_shndx = _bfd_elf_section_from_bfd_section (output_bfd, | |
10140 | htab->splt->output_section); | |
10141 | osi.plt_offset = htab->splt->output_section->vma; | |
10142 | ||
10143 | /* Output mapping symbols for the plt header. SymbianOS does not have a | |
10144 | plt header. */ | |
10145 | if (htab->vxworks_p) | |
10146 | { | |
10147 | /* VxWorks shared libraries have no PLT header. */ | |
10148 | if (!info->shared) | |
10149 | { | |
10150 | if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_ARM, 0)) | |
10151 | return FALSE; | |
10152 | if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_DATA, 12)) | |
10153 | return FALSE; | |
10154 | } | |
10155 | } | |
10156 | else if (!htab->symbian_p) | |
10157 | { | |
10158 | if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_ARM, 0)) | |
10159 | return FALSE; | |
10160 | #ifndef FOUR_WORD_PLT | |
10161 | if (!elf32_arm_ouput_plt_map_sym (&osi, ARM_MAP_DATA, 16)) | |
10162 | return FALSE; | |
10163 | #endif | |
10164 | } | |
10165 | ||
10166 | elf_link_hash_traverse (&htab->root, elf32_arm_output_plt_map, (void *) &osi); | |
10167 | return TRUE; | |
10168 | } | |
10169 | ||
e489d0ae PB |
10170 | /* Allocate target specific section data. */ |
10171 | ||
10172 | static bfd_boolean | |
10173 | elf32_arm_new_section_hook (bfd *abfd, asection *sec) | |
10174 | { | |
f592407e AM |
10175 | if (!sec->used_by_bfd) |
10176 | { | |
10177 | _arm_elf_section_data *sdata; | |
10178 | bfd_size_type amt = sizeof (*sdata); | |
e489d0ae | 10179 | |
f592407e AM |
10180 | sdata = bfd_zalloc (abfd, amt); |
10181 | if (sdata == NULL) | |
10182 | return FALSE; | |
10183 | sec->used_by_bfd = sdata; | |
10184 | } | |
e489d0ae | 10185 | |
957c6e41 | 10186 | record_section_with_arm_elf_section_data (sec); |
8e3de13a | 10187 | |
e489d0ae PB |
10188 | return _bfd_elf_new_section_hook (abfd, sec); |
10189 | } | |
10190 | ||
10191 | ||
10192 | /* Used to order a list of mapping symbols by address. */ | |
10193 | ||
10194 | static int | |
10195 | elf32_arm_compare_mapping (const void * a, const void * b) | |
10196 | { | |
10197 | return ((const elf32_arm_section_map *) a)->vma | |
10198 | > ((const elf32_arm_section_map *) b)->vma; | |
10199 | } | |
10200 | ||
10201 | ||
10202 | /* Do code byteswapping. Return FALSE afterwards so that the section is | |
10203 | written out as normal. */ | |
10204 | ||
10205 | static bfd_boolean | |
c7b8f16e JB |
10206 | elf32_arm_write_section (bfd *output_bfd, |
10207 | struct bfd_link_info *link_info, asection *sec, | |
e489d0ae PB |
10208 | bfd_byte *contents) |
10209 | { | |
c7b8f16e | 10210 | int mapcount, errcount; |
8e3de13a | 10211 | _arm_elf_section_data *arm_data; |
c7b8f16e | 10212 | struct elf32_arm_link_hash_table *globals = elf32_arm_hash_table (link_info); |
e489d0ae | 10213 | elf32_arm_section_map *map; |
c7b8f16e | 10214 | elf32_vfp11_erratum_list *errnode; |
e489d0ae PB |
10215 | bfd_vma ptr; |
10216 | bfd_vma end; | |
c7b8f16e | 10217 | bfd_vma offset = sec->output_section->vma + sec->output_offset; |
e489d0ae PB |
10218 | bfd_byte tmp; |
10219 | int i; | |
57e8b36a | 10220 | |
8e3de13a NC |
10221 | /* If this section has not been allocated an _arm_elf_section_data |
10222 | structure then we cannot record anything. */ | |
10223 | arm_data = get_arm_elf_section_data (sec); | |
10224 | if (arm_data == NULL) | |
10225 | return FALSE; | |
10226 | ||
10227 | mapcount = arm_data->mapcount; | |
10228 | map = arm_data->map; | |
c7b8f16e JB |
10229 | errcount = arm_data->erratumcount; |
10230 | ||
10231 | if (errcount != 0) | |
10232 | { | |
10233 | unsigned int endianflip = bfd_big_endian (output_bfd) ? 3 : 0; | |
10234 | ||
10235 | for (errnode = arm_data->erratumlist; errnode != 0; | |
10236 | errnode = errnode->next) | |
10237 | { | |
10238 | bfd_vma index = errnode->vma - offset; | |
10239 | ||
10240 | switch (errnode->type) | |
10241 | { | |
10242 | case VFP11_ERRATUM_BRANCH_TO_ARM_VENEER: | |
10243 | { | |
10244 | bfd_vma branch_to_veneer; | |
10245 | /* Original condition code of instruction, plus bit mask for | |
10246 | ARM B instruction. */ | |
10247 | unsigned int insn = (errnode->u.b.vfp_insn & 0xf0000000) | |
10248 | | 0x0a000000; | |
10249 | ||
10250 | /* The instruction is before the label. */ | |
10251 | index -= 4; | |
10252 | ||
10253 | /* Above offset included in -4 below. */ | |
10254 | branch_to_veneer = errnode->u.b.veneer->vma | |
10255 | - errnode->vma - 4; | |
10256 | ||
10257 | if ((signed) branch_to_veneer < -(1 << 25) | |
10258 | || (signed) branch_to_veneer >= (1 << 25)) | |
10259 | (*_bfd_error_handler) (_("%B: error: VFP11 veneer out of " | |
10260 | "range"), output_bfd); | |
10261 | ||
10262 | insn |= (branch_to_veneer >> 2) & 0xffffff; | |
10263 | contents[endianflip ^ index] = insn & 0xff; | |
10264 | contents[endianflip ^ (index + 1)] = (insn >> 8) & 0xff; | |
10265 | contents[endianflip ^ (index + 2)] = (insn >> 16) & 0xff; | |
10266 | contents[endianflip ^ (index + 3)] = (insn >> 24) & 0xff; | |
10267 | } | |
10268 | break; | |
10269 | ||
10270 | case VFP11_ERRATUM_ARM_VENEER: | |
10271 | { | |
10272 | bfd_vma branch_from_veneer; | |
10273 | unsigned int insn; | |
10274 | ||
10275 | /* Take size of veneer into account. */ | |
10276 | branch_from_veneer = errnode->u.v.branch->vma | |
10277 | - errnode->vma - 12; | |
10278 | ||
10279 | if ((signed) branch_from_veneer < -(1 << 25) | |
10280 | || (signed) branch_from_veneer >= (1 << 25)) | |
10281 | (*_bfd_error_handler) (_("%B: error: VFP11 veneer out of " | |
10282 | "range"), output_bfd); | |
10283 | ||
10284 | /* Original instruction. */ | |
10285 | insn = errnode->u.v.branch->u.b.vfp_insn; | |
10286 | contents[endianflip ^ index] = insn & 0xff; | |
10287 | contents[endianflip ^ (index + 1)] = (insn >> 8) & 0xff; | |
10288 | contents[endianflip ^ (index + 2)] = (insn >> 16) & 0xff; | |
10289 | contents[endianflip ^ (index + 3)] = (insn >> 24) & 0xff; | |
10290 | ||
10291 | /* Branch back to insn after original insn. */ | |
10292 | insn = 0xea000000 | ((branch_from_veneer >> 2) & 0xffffff); | |
10293 | contents[endianflip ^ (index + 4)] = insn & 0xff; | |
10294 | contents[endianflip ^ (index + 5)] = (insn >> 8) & 0xff; | |
10295 | contents[endianflip ^ (index + 6)] = (insn >> 16) & 0xff; | |
10296 | contents[endianflip ^ (index + 7)] = (insn >> 24) & 0xff; | |
10297 | } | |
10298 | break; | |
10299 | ||
10300 | default: | |
10301 | abort (); | |
10302 | } | |
10303 | } | |
10304 | } | |
e489d0ae PB |
10305 | |
10306 | if (mapcount == 0) | |
10307 | return FALSE; | |
10308 | ||
c7b8f16e | 10309 | if (globals->byteswap_code) |
e489d0ae | 10310 | { |
c7b8f16e | 10311 | qsort (map, mapcount, sizeof (* map), elf32_arm_compare_mapping); |
57e8b36a | 10312 | |
c7b8f16e JB |
10313 | ptr = map[0].vma; |
10314 | for (i = 0; i < mapcount; i++) | |
10315 | { | |
10316 | if (i == mapcount - 1) | |
10317 | end = sec->size; | |
10318 | else | |
10319 | end = map[i + 1].vma; | |
e489d0ae | 10320 | |
c7b8f16e | 10321 | switch (map[i].type) |
e489d0ae | 10322 | { |
c7b8f16e JB |
10323 | case 'a': |
10324 | /* Byte swap code words. */ | |
10325 | while (ptr + 3 < end) | |
10326 | { | |
10327 | tmp = contents[ptr]; | |
10328 | contents[ptr] = contents[ptr + 3]; | |
10329 | contents[ptr + 3] = tmp; | |
10330 | tmp = contents[ptr + 1]; | |
10331 | contents[ptr + 1] = contents[ptr + 2]; | |
10332 | contents[ptr + 2] = tmp; | |
10333 | ptr += 4; | |
10334 | } | |
10335 | break; | |
e489d0ae | 10336 | |
c7b8f16e JB |
10337 | case 't': |
10338 | /* Byte swap code halfwords. */ | |
10339 | while (ptr + 1 < end) | |
10340 | { | |
10341 | tmp = contents[ptr]; | |
10342 | contents[ptr] = contents[ptr + 1]; | |
10343 | contents[ptr + 1] = tmp; | |
10344 | ptr += 2; | |
10345 | } | |
10346 | break; | |
10347 | ||
10348 | case 'd': | |
10349 | /* Leave data alone. */ | |
10350 | break; | |
10351 | } | |
10352 | ptr = end; | |
10353 | } | |
e489d0ae | 10354 | } |
8e3de13a | 10355 | |
93204d3a | 10356 | free (map); |
8e3de13a | 10357 | arm_data->mapcount = 0; |
c7b8f16e | 10358 | arm_data->mapsize = 0; |
8e3de13a NC |
10359 | arm_data->map = NULL; |
10360 | unrecord_section_with_arm_elf_section_data (sec); | |
10361 | ||
e489d0ae PB |
10362 | return FALSE; |
10363 | } | |
10364 | ||
957c6e41 NC |
10365 | static void |
10366 | unrecord_section_via_map_over_sections (bfd * abfd ATTRIBUTE_UNUSED, | |
10367 | asection * sec, | |
10368 | void * ignore ATTRIBUTE_UNUSED) | |
10369 | { | |
10370 | unrecord_section_with_arm_elf_section_data (sec); | |
10371 | } | |
10372 | ||
10373 | static bfd_boolean | |
10374 | elf32_arm_close_and_cleanup (bfd * abfd) | |
10375 | { | |
b25e3d87 L |
10376 | if (abfd->sections) |
10377 | bfd_map_over_sections (abfd, | |
10378 | unrecord_section_via_map_over_sections, | |
10379 | NULL); | |
957c6e41 NC |
10380 | |
10381 | return _bfd_elf_close_and_cleanup (abfd); | |
10382 | } | |
10383 | ||
b25e3d87 L |
10384 | static bfd_boolean |
10385 | elf32_arm_bfd_free_cached_info (bfd * abfd) | |
10386 | { | |
10387 | if (abfd->sections) | |
10388 | bfd_map_over_sections (abfd, | |
10389 | unrecord_section_via_map_over_sections, | |
10390 | NULL); | |
10391 | ||
10392 | return _bfd_free_cached_info (abfd); | |
10393 | } | |
10394 | ||
b7693d02 DJ |
10395 | /* Display STT_ARM_TFUNC symbols as functions. */ |
10396 | ||
10397 | static void | |
10398 | elf32_arm_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, | |
10399 | asymbol *asym) | |
10400 | { | |
10401 | elf_symbol_type *elfsym = (elf_symbol_type *) asym; | |
10402 | ||
10403 | if (ELF_ST_TYPE (elfsym->internal_elf_sym.st_info) == STT_ARM_TFUNC) | |
10404 | elfsym->symbol.flags |= BSF_FUNCTION; | |
10405 | } | |
10406 | ||
0beaef2b PB |
10407 | |
10408 | /* Mangle thumb function symbols as we read them in. */ | |
10409 | ||
8384fb8f | 10410 | static bfd_boolean |
0beaef2b PB |
10411 | elf32_arm_swap_symbol_in (bfd * abfd, |
10412 | const void *psrc, | |
10413 | const void *pshn, | |
10414 | Elf_Internal_Sym *dst) | |
10415 | { | |
8384fb8f AM |
10416 | if (!bfd_elf32_swap_symbol_in (abfd, psrc, pshn, dst)) |
10417 | return FALSE; | |
0beaef2b PB |
10418 | |
10419 | /* New EABI objects mark thumb function symbols by setting the low bit of | |
10420 | the address. Turn these into STT_ARM_TFUNC. */ | |
10421 | if (ELF_ST_TYPE (dst->st_info) == STT_FUNC | |
10422 | && (dst->st_value & 1)) | |
10423 | { | |
10424 | dst->st_info = ELF_ST_INFO (ELF_ST_BIND (dst->st_info), STT_ARM_TFUNC); | |
10425 | dst->st_value &= ~(bfd_vma) 1; | |
10426 | } | |
8384fb8f | 10427 | return TRUE; |
0beaef2b PB |
10428 | } |
10429 | ||
10430 | ||
10431 | /* Mangle thumb function symbols as we write them out. */ | |
10432 | ||
10433 | static void | |
10434 | elf32_arm_swap_symbol_out (bfd *abfd, | |
10435 | const Elf_Internal_Sym *src, | |
10436 | void *cdst, | |
10437 | void *shndx) | |
10438 | { | |
10439 | Elf_Internal_Sym newsym; | |
10440 | ||
10441 | /* We convert STT_ARM_TFUNC symbols into STT_FUNC with the low bit | |
10442 | of the address set, as per the new EABI. We do this unconditionally | |
10443 | because objcopy does not set the elf header flags until after | |
10444 | it writes out the symbol table. */ | |
10445 | if (ELF_ST_TYPE (src->st_info) == STT_ARM_TFUNC) | |
10446 | { | |
10447 | newsym = *src; | |
10448 | newsym.st_info = ELF_ST_INFO (ELF_ST_BIND (src->st_info), STT_FUNC); | |
0fa3dcad PB |
10449 | if (newsym.st_shndx != SHN_UNDEF) |
10450 | { | |
10451 | /* Do this only for defined symbols. At link type, the static | |
10452 | linker will simulate the work of dynamic linker of resolving | |
10453 | symbols and will carry over the thumbness of found symbols to | |
10454 | the output symbol table. It's not clear how it happens, but | |
b0fead2b | 10455 | the thumbness of undefined symbols can well be different at |
0fa3dcad PB |
10456 | runtime, and writing '1' for them will be confusing for users |
10457 | and possibly for dynamic linker itself. | |
10458 | */ | |
10459 | newsym.st_value |= 1; | |
10460 | } | |
0beaef2b PB |
10461 | |
10462 | src = &newsym; | |
10463 | } | |
10464 | bfd_elf32_swap_symbol_out (abfd, src, cdst, shndx); | |
10465 | } | |
10466 | ||
b294bdf8 MM |
10467 | /* Add the PT_ARM_EXIDX program header. */ |
10468 | ||
10469 | static bfd_boolean | |
10470 | elf32_arm_modify_segment_map (bfd *abfd, | |
10471 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
10472 | { | |
10473 | struct elf_segment_map *m; | |
10474 | asection *sec; | |
10475 | ||
10476 | sec = bfd_get_section_by_name (abfd, ".ARM.exidx"); | |
10477 | if (sec != NULL && (sec->flags & SEC_LOAD) != 0) | |
10478 | { | |
10479 | /* If there is already a PT_ARM_EXIDX header, then we do not | |
10480 | want to add another one. This situation arises when running | |
10481 | "strip"; the input binary already has the header. */ | |
10482 | m = elf_tdata (abfd)->segment_map; | |
10483 | while (m && m->p_type != PT_ARM_EXIDX) | |
10484 | m = m->next; | |
10485 | if (!m) | |
10486 | { | |
10487 | m = bfd_zalloc (abfd, sizeof (struct elf_segment_map)); | |
10488 | if (m == NULL) | |
10489 | return FALSE; | |
10490 | m->p_type = PT_ARM_EXIDX; | |
10491 | m->count = 1; | |
10492 | m->sections[0] = sec; | |
10493 | ||
10494 | m->next = elf_tdata (abfd)->segment_map; | |
10495 | elf_tdata (abfd)->segment_map = m; | |
10496 | } | |
10497 | } | |
10498 | ||
10499 | return TRUE; | |
10500 | } | |
10501 | ||
10502 | /* We may add a PT_ARM_EXIDX program header. */ | |
10503 | ||
10504 | static int | |
a6b96beb AM |
10505 | elf32_arm_additional_program_headers (bfd *abfd, |
10506 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
b294bdf8 MM |
10507 | { |
10508 | asection *sec; | |
10509 | ||
10510 | sec = bfd_get_section_by_name (abfd, ".ARM.exidx"); | |
10511 | if (sec != NULL && (sec->flags & SEC_LOAD) != 0) | |
10512 | return 1; | |
10513 | else | |
10514 | return 0; | |
10515 | } | |
10516 | ||
0beaef2b PB |
10517 | /* We use this to override swap_symbol_in and swap_symbol_out. */ |
10518 | const struct elf_size_info elf32_arm_size_info = { | |
10519 | sizeof (Elf32_External_Ehdr), | |
10520 | sizeof (Elf32_External_Phdr), | |
10521 | sizeof (Elf32_External_Shdr), | |
10522 | sizeof (Elf32_External_Rel), | |
10523 | sizeof (Elf32_External_Rela), | |
10524 | sizeof (Elf32_External_Sym), | |
10525 | sizeof (Elf32_External_Dyn), | |
10526 | sizeof (Elf_External_Note), | |
10527 | 4, | |
10528 | 1, | |
10529 | 32, 2, | |
10530 | ELFCLASS32, EV_CURRENT, | |
10531 | bfd_elf32_write_out_phdrs, | |
10532 | bfd_elf32_write_shdrs_and_ehdr, | |
10533 | bfd_elf32_write_relocs, | |
10534 | elf32_arm_swap_symbol_in, | |
10535 | elf32_arm_swap_symbol_out, | |
10536 | bfd_elf32_slurp_reloc_table, | |
10537 | bfd_elf32_slurp_symbol_table, | |
10538 | bfd_elf32_swap_dyn_in, | |
10539 | bfd_elf32_swap_dyn_out, | |
10540 | bfd_elf32_swap_reloc_in, | |
10541 | bfd_elf32_swap_reloc_out, | |
10542 | bfd_elf32_swap_reloca_in, | |
10543 | bfd_elf32_swap_reloca_out | |
10544 | }; | |
10545 | ||
252b5132 RH |
10546 | #define ELF_ARCH bfd_arch_arm |
10547 | #define ELF_MACHINE_CODE EM_ARM | |
d0facd1b NC |
10548 | #ifdef __QNXTARGET__ |
10549 | #define ELF_MAXPAGESIZE 0x1000 | |
10550 | #else | |
f21f3fe0 | 10551 | #define ELF_MAXPAGESIZE 0x8000 |
d0facd1b | 10552 | #endif |
b1342370 | 10553 | #define ELF_MINPAGESIZE 0x1000 |
24718e3b | 10554 | #define ELF_COMMONPAGESIZE 0x1000 |
252b5132 | 10555 | |
ba93b8ac DJ |
10556 | #define bfd_elf32_mkobject elf32_arm_mkobject |
10557 | ||
99e4ae17 AJ |
10558 | #define bfd_elf32_bfd_copy_private_bfd_data elf32_arm_copy_private_bfd_data |
10559 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_arm_merge_private_bfd_data | |
252b5132 RH |
10560 | #define bfd_elf32_bfd_set_private_flags elf32_arm_set_private_flags |
10561 | #define bfd_elf32_bfd_print_private_bfd_data elf32_arm_print_private_bfd_data | |
10562 | #define bfd_elf32_bfd_link_hash_table_create elf32_arm_link_hash_table_create | |
dc810e39 | 10563 | #define bfd_elf32_bfd_reloc_type_lookup elf32_arm_reloc_type_lookup |
252b5132 | 10564 | #define bfd_elf32_find_nearest_line elf32_arm_find_nearest_line |
4ab527b0 | 10565 | #define bfd_elf32_find_inliner_info elf32_arm_find_inliner_info |
e489d0ae | 10566 | #define bfd_elf32_new_section_hook elf32_arm_new_section_hook |
3c9458e9 | 10567 | #define bfd_elf32_bfd_is_target_special_symbol elf32_arm_is_target_special_symbol |
957c6e41 | 10568 | #define bfd_elf32_close_and_cleanup elf32_arm_close_and_cleanup |
b25e3d87 | 10569 | #define bfd_elf32_bfd_free_cached_info elf32_arm_bfd_free_cached_info |
ee065d83 | 10570 | #define bfd_elf32_bfd_final_link elf32_arm_bfd_final_link |
252b5132 RH |
10571 | |
10572 | #define elf_backend_get_symbol_type elf32_arm_get_symbol_type | |
10573 | #define elf_backend_gc_mark_hook elf32_arm_gc_mark_hook | |
6a5bb875 | 10574 | #define elf_backend_gc_mark_extra_sections elf32_arm_gc_mark_extra_sections |
252b5132 RH |
10575 | #define elf_backend_gc_sweep_hook elf32_arm_gc_sweep_hook |
10576 | #define elf_backend_check_relocs elf32_arm_check_relocs | |
dc810e39 | 10577 | #define elf_backend_relocate_section elf32_arm_relocate_section |
e489d0ae | 10578 | #define elf_backend_write_section elf32_arm_write_section |
252b5132 | 10579 | #define elf_backend_adjust_dynamic_symbol elf32_arm_adjust_dynamic_symbol |
5e681ec4 | 10580 | #define elf_backend_create_dynamic_sections elf32_arm_create_dynamic_sections |
252b5132 RH |
10581 | #define elf_backend_finish_dynamic_symbol elf32_arm_finish_dynamic_symbol |
10582 | #define elf_backend_finish_dynamic_sections elf32_arm_finish_dynamic_sections | |
10583 | #define elf_backend_size_dynamic_sections elf32_arm_size_dynamic_sections | |
74541ad4 | 10584 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
ba96a88f | 10585 | #define elf_backend_post_process_headers elf32_arm_post_process_headers |
99e4ae17 | 10586 | #define elf_backend_reloc_type_class elf32_arm_reloc_type_class |
c178919b | 10587 | #define elf_backend_object_p elf32_arm_object_p |
e16bb312 | 10588 | #define elf_backend_section_flags elf32_arm_section_flags |
40a18ebd NC |
10589 | #define elf_backend_fake_sections elf32_arm_fake_sections |
10590 | #define elf_backend_section_from_shdr elf32_arm_section_from_shdr | |
e16bb312 | 10591 | #define elf_backend_final_write_processing elf32_arm_final_write_processing |
5e681ec4 | 10592 | #define elf_backend_copy_indirect_symbol elf32_arm_copy_indirect_symbol |
b7693d02 | 10593 | #define elf_backend_symbol_processing elf32_arm_symbol_processing |
0beaef2b | 10594 | #define elf_backend_size_info elf32_arm_size_info |
b294bdf8 MM |
10595 | #define elf_backend_modify_segment_map elf32_arm_modify_segment_map |
10596 | #define elf_backend_additional_program_headers \ | |
10597 | elf32_arm_additional_program_headers | |
4e617b1e PB |
10598 | #define elf_backend_output_arch_local_syms \ |
10599 | elf32_arm_output_arch_local_syms | |
a4fd1a8e PB |
10600 | #define elf_backend_begin_write_processing \ |
10601 | elf32_arm_begin_write_processing | |
252b5132 | 10602 | |
5e681ec4 | 10603 | #define elf_backend_can_refcount 1 |
252b5132 RH |
10604 | #define elf_backend_can_gc_sections 1 |
10605 | #define elf_backend_plt_readonly 1 | |
10606 | #define elf_backend_want_got_plt 1 | |
10607 | #define elf_backend_want_plt_sym 0 | |
4e7fd91e PB |
10608 | #define elf_backend_may_use_rel_p 1 |
10609 | #define elf_backend_may_use_rela_p 0 | |
10610 | #define elf_backend_default_use_rela_p 0 | |
252b5132 | 10611 | |
04f7c78d | 10612 | #define elf_backend_got_header_size 12 |
04f7c78d | 10613 | |
252b5132 | 10614 | #include "elf32-target.h" |
7f266840 | 10615 | |
4e7fd91e PB |
10616 | /* VxWorks Targets */ |
10617 | ||
10618 | #undef TARGET_LITTLE_SYM | |
10619 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_vxworks_vec | |
10620 | #undef TARGET_LITTLE_NAME | |
10621 | #define TARGET_LITTLE_NAME "elf32-littlearm-vxworks" | |
10622 | #undef TARGET_BIG_SYM | |
10623 | #define TARGET_BIG_SYM bfd_elf32_bigarm_vxworks_vec | |
10624 | #undef TARGET_BIG_NAME | |
10625 | #define TARGET_BIG_NAME "elf32-bigarm-vxworks" | |
10626 | ||
10627 | /* Like elf32_arm_link_hash_table_create -- but overrides | |
10628 | appropriately for VxWorks. */ | |
10629 | static struct bfd_link_hash_table * | |
10630 | elf32_arm_vxworks_link_hash_table_create (bfd *abfd) | |
10631 | { | |
10632 | struct bfd_link_hash_table *ret; | |
10633 | ||
10634 | ret = elf32_arm_link_hash_table_create (abfd); | |
10635 | if (ret) | |
10636 | { | |
10637 | struct elf32_arm_link_hash_table *htab | |
00a97672 | 10638 | = (struct elf32_arm_link_hash_table *) ret; |
4e7fd91e | 10639 | htab->use_rel = 0; |
00a97672 | 10640 | htab->vxworks_p = 1; |
4e7fd91e PB |
10641 | } |
10642 | return ret; | |
10643 | } | |
10644 | ||
00a97672 RS |
10645 | static void |
10646 | elf32_arm_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) | |
10647 | { | |
10648 | elf32_arm_final_write_processing (abfd, linker); | |
10649 | elf_vxworks_final_write_processing (abfd, linker); | |
10650 | } | |
10651 | ||
4e7fd91e PB |
10652 | #undef elf32_bed |
10653 | #define elf32_bed elf32_arm_vxworks_bed | |
10654 | ||
10655 | #undef bfd_elf32_bfd_link_hash_table_create | |
10656 | #define bfd_elf32_bfd_link_hash_table_create \ | |
10657 | elf32_arm_vxworks_link_hash_table_create | |
00a97672 RS |
10658 | #undef elf_backend_add_symbol_hook |
10659 | #define elf_backend_add_symbol_hook \ | |
10660 | elf_vxworks_add_symbol_hook | |
10661 | #undef elf_backend_final_write_processing | |
10662 | #define elf_backend_final_write_processing \ | |
10663 | elf32_arm_vxworks_final_write_processing | |
10664 | #undef elf_backend_emit_relocs | |
10665 | #define elf_backend_emit_relocs \ | |
10666 | elf_vxworks_emit_relocs | |
4e7fd91e PB |
10667 | |
10668 | #undef elf_backend_may_use_rel_p | |
00a97672 | 10669 | #define elf_backend_may_use_rel_p 0 |
4e7fd91e | 10670 | #undef elf_backend_may_use_rela_p |
00a97672 | 10671 | #define elf_backend_may_use_rela_p 1 |
4e7fd91e | 10672 | #undef elf_backend_default_use_rela_p |
00a97672 | 10673 | #define elf_backend_default_use_rela_p 1 |
00a97672 RS |
10674 | #undef elf_backend_want_plt_sym |
10675 | #define elf_backend_want_plt_sym 1 | |
10676 | #undef ELF_MAXPAGESIZE | |
10677 | #define ELF_MAXPAGESIZE 0x1000 | |
4e7fd91e PB |
10678 | |
10679 | #include "elf32-target.h" | |
10680 | ||
10681 | ||
7f266840 DJ |
10682 | /* Symbian OS Targets */ |
10683 | ||
10684 | #undef TARGET_LITTLE_SYM | |
10685 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_symbian_vec | |
10686 | #undef TARGET_LITTLE_NAME | |
10687 | #define TARGET_LITTLE_NAME "elf32-littlearm-symbian" | |
10688 | #undef TARGET_BIG_SYM | |
10689 | #define TARGET_BIG_SYM bfd_elf32_bigarm_symbian_vec | |
10690 | #undef TARGET_BIG_NAME | |
10691 | #define TARGET_BIG_NAME "elf32-bigarm-symbian" | |
10692 | ||
10693 | /* Like elf32_arm_link_hash_table_create -- but overrides | |
10694 | appropriately for Symbian OS. */ | |
10695 | static struct bfd_link_hash_table * | |
10696 | elf32_arm_symbian_link_hash_table_create (bfd *abfd) | |
10697 | { | |
10698 | struct bfd_link_hash_table *ret; | |
10699 | ||
10700 | ret = elf32_arm_link_hash_table_create (abfd); | |
10701 | if (ret) | |
10702 | { | |
10703 | struct elf32_arm_link_hash_table *htab | |
10704 | = (struct elf32_arm_link_hash_table *)ret; | |
10705 | /* There is no PLT header for Symbian OS. */ | |
10706 | htab->plt_header_size = 0; | |
10707 | /* The PLT entries are each three instructions. */ | |
10708 | htab->plt_entry_size = 4 * NUM_ELEM (elf32_arm_symbian_plt_entry); | |
10709 | htab->symbian_p = 1; | |
33bfe774 JB |
10710 | /* Symbian uses armv5t or above, so use_blx is always true. */ |
10711 | htab->use_blx = 1; | |
67687978 | 10712 | htab->root.is_relocatable_executable = 1; |
7f266840 DJ |
10713 | } |
10714 | return ret; | |
10715 | } | |
10716 | ||
b35d266b | 10717 | static const struct bfd_elf_special_section |
551b43fd | 10718 | elf32_arm_symbian_special_sections[] = |
7f266840 | 10719 | { |
5cd3778d MM |
10720 | /* In a BPABI executable, the dynamic linking sections do not go in |
10721 | the loadable read-only segment. The post-linker may wish to | |
10722 | refer to these sections, but they are not part of the final | |
10723 | program image. */ | |
0112cd26 NC |
10724 | { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, 0 }, |
10725 | { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, 0 }, | |
10726 | { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, 0 }, | |
10727 | { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, 0 }, | |
10728 | { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, 0 }, | |
5cd3778d MM |
10729 | /* These sections do not need to be writable as the SymbianOS |
10730 | postlinker will arrange things so that no dynamic relocation is | |
10731 | required. */ | |
0112cd26 NC |
10732 | { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC }, |
10733 | { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC }, | |
10734 | { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC }, | |
10735 | { NULL, 0, 0, 0, 0 } | |
7f266840 DJ |
10736 | }; |
10737 | ||
c3c76620 | 10738 | static void |
b34af79c | 10739 | elf32_arm_symbian_begin_write_processing (bfd *abfd, |
a4fd1a8e | 10740 | struct bfd_link_info *link_info) |
c3c76620 MM |
10741 | { |
10742 | /* BPABI objects are never loaded directly by an OS kernel; they are | |
10743 | processed by a postlinker first, into an OS-specific format. If | |
10744 | the D_PAGED bit is set on the file, BFD will align segments on | |
10745 | page boundaries, so that an OS can directly map the file. With | |
10746 | BPABI objects, that just results in wasted space. In addition, | |
10747 | because we clear the D_PAGED bit, map_sections_to_segments will | |
10748 | recognize that the program headers should not be mapped into any | |
10749 | loadable segment. */ | |
10750 | abfd->flags &= ~D_PAGED; | |
a4fd1a8e | 10751 | elf32_arm_begin_write_processing(abfd, link_info); |
c3c76620 | 10752 | } |
7f266840 DJ |
10753 | |
10754 | static bfd_boolean | |
b34af79c | 10755 | elf32_arm_symbian_modify_segment_map (bfd *abfd, |
b294bdf8 | 10756 | struct bfd_link_info *info) |
7f266840 DJ |
10757 | { |
10758 | struct elf_segment_map *m; | |
10759 | asection *dynsec; | |
10760 | ||
7f266840 DJ |
10761 | /* BPABI shared libraries and executables should have a PT_DYNAMIC |
10762 | segment. However, because the .dynamic section is not marked | |
10763 | with SEC_LOAD, the generic ELF code will not create such a | |
10764 | segment. */ | |
10765 | dynsec = bfd_get_section_by_name (abfd, ".dynamic"); | |
10766 | if (dynsec) | |
10767 | { | |
8ded5a0f AM |
10768 | for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) |
10769 | if (m->p_type == PT_DYNAMIC) | |
10770 | break; | |
10771 | ||
10772 | if (m == NULL) | |
10773 | { | |
10774 | m = _bfd_elf_make_dynamic_segment (abfd, dynsec); | |
10775 | m->next = elf_tdata (abfd)->segment_map; | |
10776 | elf_tdata (abfd)->segment_map = m; | |
10777 | } | |
7f266840 DJ |
10778 | } |
10779 | ||
b294bdf8 MM |
10780 | /* Also call the generic arm routine. */ |
10781 | return elf32_arm_modify_segment_map (abfd, info); | |
7f266840 DJ |
10782 | } |
10783 | ||
10784 | #undef elf32_bed | |
10785 | #define elf32_bed elf32_arm_symbian_bed | |
10786 | ||
10787 | /* The dynamic sections are not allocated on SymbianOS; the postlinker | |
10788 | will process them and then discard them. */ | |
10789 | #undef ELF_DYNAMIC_SEC_FLAGS | |
10790 | #define ELF_DYNAMIC_SEC_FLAGS \ | |
10791 | (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED) | |
10792 | ||
10793 | #undef bfd_elf32_bfd_link_hash_table_create | |
10794 | #define bfd_elf32_bfd_link_hash_table_create \ | |
10795 | elf32_arm_symbian_link_hash_table_create | |
00a97672 | 10796 | #undef elf_backend_add_symbol_hook |
7f266840 | 10797 | |
29ef7005 L |
10798 | #undef elf_backend_special_sections |
10799 | #define elf_backend_special_sections elf32_arm_symbian_special_sections | |
7f266840 | 10800 | |
c3c76620 MM |
10801 | #undef elf_backend_begin_write_processing |
10802 | #define elf_backend_begin_write_processing \ | |
10803 | elf32_arm_symbian_begin_write_processing | |
00a97672 RS |
10804 | #undef elf_backend_final_write_processing |
10805 | #define elf_backend_final_write_processing \ | |
10806 | elf32_arm_final_write_processing | |
10807 | #undef elf_backend_emit_relocs | |
c3c76620 | 10808 | |
7f266840 DJ |
10809 | #undef elf_backend_modify_segment_map |
10810 | #define elf_backend_modify_segment_map elf32_arm_symbian_modify_segment_map | |
10811 | ||
10812 | /* There is no .got section for BPABI objects, and hence no header. */ | |
10813 | #undef elf_backend_got_header_size | |
10814 | #define elf_backend_got_header_size 0 | |
10815 | ||
10816 | /* Similarly, there is no .got.plt section. */ | |
10817 | #undef elf_backend_want_got_plt | |
10818 | #define elf_backend_want_got_plt 0 | |
10819 | ||
4e7fd91e | 10820 | #undef elf_backend_may_use_rel_p |
00a97672 | 10821 | #define elf_backend_may_use_rel_p 1 |
4e7fd91e | 10822 | #undef elf_backend_may_use_rela_p |
00a97672 | 10823 | #define elf_backend_may_use_rela_p 0 |
4e7fd91e | 10824 | #undef elf_backend_default_use_rela_p |
00a97672 | 10825 | #define elf_backend_default_use_rela_p 0 |
00a97672 RS |
10826 | #undef elf_backend_want_plt_sym |
10827 | #define elf_backend_want_plt_sym 0 | |
10828 | #undef ELF_MAXPAGESIZE | |
10829 | #define ELF_MAXPAGESIZE 0x8000 | |
4e7fd91e | 10830 | |
7f266840 | 10831 | #include "elf32-target.h" |