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e214f8db | 1 | /* LoongArch-specific support for ELF. |
a2c58332 | 2 | Copyright (C) 2021-2022 Free Software Foundation, Inc. |
e214f8db | 3 | Contributed by Loongson Ltd. |
4 | ||
5 | Based on RISC-V target. | |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; see the file COPYING3. If not, | |
21 | see <http://www.gnu.org/licenses/>. */ | |
22 | ||
23 | #include "sysdep.h" | |
24 | #include "bfd.h" | |
25 | #include "libbfd.h" | |
26 | #include "elf-bfd.h" | |
27 | #include "elf/loongarch.h" | |
28 | #include "elfxx-loongarch.h" | |
29 | ||
30 | #define ALL_ONES (~ (bfd_vma) 0) | |
31 | ||
32 | /* This does not include any relocation information, but should be | |
33 | good enough for GDB or objdump to read the file. */ | |
34 | ||
35 | static reloc_howto_type howto_table[] = | |
36 | { | |
37 | #define LOONGARCH_HOWTO(r_name) \ | |
38 | HOWTO (R_LARCH_##r_name, 0, 2, 32, false, 0, complain_overflow_signed, \ | |
39 | bfd_elf_generic_reloc, "R_LARCH_" #r_name, false, 0, 0xffffffff, false) | |
40 | ||
41 | /* No relocation. */ | |
42 | HOWTO (R_LARCH_NONE, /* type (0). */ | |
43 | 0, /* rightshift */ | |
44 | 3, /* size */ | |
45 | 0, /* bitsize */ | |
46 | false, /* pc_relative */ | |
47 | 0, /* bitpos */ | |
48 | complain_overflow_dont, /* complain_on_overflow */ | |
49 | bfd_elf_generic_reloc, /* special_function */ | |
50 | "R_LARCH_NONE", /* name */ | |
51 | false, /* partial_inplace */ | |
52 | 0, /* src_mask */ | |
53 | 0, /* dst_mask */ | |
54 | false), /* pcrel_offset */ | |
55 | ||
56 | /* 32 bit relocation. */ | |
57 | HOWTO (R_LARCH_32, /* type (1). */ | |
58 | 0, /* rightshift */ | |
59 | 2, /* size */ | |
60 | 32, /* bitsize */ | |
61 | false, /* pc_relative */ | |
62 | 0, /* bitpos */ | |
63 | complain_overflow_dont, /* complain_on_overflow */ | |
64 | bfd_elf_generic_reloc, /* special_function */ | |
65 | "R_LARCH_32", /* name */ | |
66 | false, /* partial_inplace */ | |
67 | 0, /* src_mask */ | |
68 | 0xffffffff, /* dst_mask */ | |
69 | false), /* pcrel_offset */ | |
70 | ||
71 | /* 64 bit relocation. */ | |
72 | HOWTO (R_LARCH_64, /* type (2). */ | |
73 | 0, /* rightshift */ | |
74 | 4, /* size */ | |
75 | 64, /* bitsize */ | |
76 | false, /* pc_relative */ | |
77 | 0, /* bitpos */ | |
78 | complain_overflow_dont, /* complain_on_overflow */ | |
79 | bfd_elf_generic_reloc, /* special_function */ | |
80 | "R_LARCH_64", /* name */ | |
81 | false, /* partial_inplace */ | |
82 | 0, /* src_mask */ | |
83 | ALL_ONES, /* dst_mask */ | |
84 | false), /* pcrel_offset */ | |
85 | ||
86 | HOWTO (R_LARCH_RELATIVE, /* type (3). */ | |
87 | 0, /* rightshift */ | |
88 | 2, /* size */ | |
89 | 32, /* bitsize */ | |
90 | false, /* pc_relative */ | |
91 | 0, /* bitpos */ | |
92 | complain_overflow_dont, /* complain_on_overflow */ | |
93 | bfd_elf_generic_reloc, /* special_function */ | |
94 | "R_LARCH_RELATIVE", /* name */ | |
95 | false, /* partial_inplace */ | |
96 | 0, /* src_mask */ | |
97 | 0xffffffff, /* dst_mask */ | |
98 | false), /* pcrel_offset */ | |
99 | ||
100 | HOWTO (R_LARCH_COPY, /* type (4). */ | |
101 | 0, /* rightshift */ | |
102 | 0, /* this one is variable size */ | |
103 | 0, /* bitsize */ | |
104 | false, /* pc_relative */ | |
105 | 0, /* bitpos */ | |
106 | complain_overflow_bitfield, /* complain_on_overflow */ | |
107 | bfd_elf_generic_reloc, /* special_function */ | |
108 | "R_LARCH_COPY", /* name */ | |
109 | false, /* partial_inplace */ | |
110 | 0, /* src_mask */ | |
111 | 0, /* dst_mask */ | |
112 | false), /* pcrel_offset */ | |
113 | ||
114 | HOWTO (R_LARCH_JUMP_SLOT, /* type (5). */ | |
115 | 0, /* rightshift */ | |
116 | 4, /* size */ | |
117 | 64, /* bitsize */ | |
118 | false, /* pc_relative */ | |
119 | 0, /* bitpos */ | |
120 | complain_overflow_bitfield, /* complain_on_overflow */ | |
121 | bfd_elf_generic_reloc, /* special_function */ | |
122 | "R_LARCH_JUMP_SLOT", /* name */ | |
123 | false, /* partial_inplace */ | |
124 | 0, /* src_mask */ | |
125 | 0, /* dst_mask */ | |
126 | false), /* pcrel_offset */ | |
127 | ||
128 | /* Dynamic TLS relocations. */ | |
129 | HOWTO (R_LARCH_TLS_DTPMOD32, /* type (6). */ | |
130 | 0, /* rightshift */ | |
131 | 2, /* size */ | |
132 | 32, /* bitsize */ | |
133 | false, /* pc_relative */ | |
134 | 0, /* bitpos */ | |
135 | complain_overflow_dont, /* complain_on_overflow */ | |
136 | bfd_elf_generic_reloc, /* special_function */ | |
137 | "R_LARCH_TLS_DTPMOD32", /* name */ | |
138 | false, /* partial_inplace */ | |
139 | 0, /* src_mask */ | |
140 | 0xffffffff, /* dst_mask */ | |
141 | false), /* pcrel_offset */ | |
142 | ||
143 | HOWTO (R_LARCH_TLS_DTPMOD64, /* type (7). */ | |
144 | 0, /* rightshift */ | |
145 | 4, /* size */ | |
146 | 64, /* bitsize */ | |
147 | false, /* pc_relative */ | |
148 | 0, /* bitpos */ | |
149 | complain_overflow_dont, /* complain_on_overflow */ | |
150 | bfd_elf_generic_reloc, /* special_function */ | |
151 | "R_LARCH_TLS_DTPMOD64", /* name */ | |
152 | false, /* partial_inplace */ | |
153 | 0, /* src_mask */ | |
154 | ALL_ONES, /* dst_mask */ | |
155 | false), /* pcrel_offset */ | |
156 | ||
157 | HOWTO (R_LARCH_TLS_DTPREL32, /* type (8). */ | |
158 | 0, /* rightshift */ | |
159 | 2, /* size */ | |
160 | 32, /* bitsize */ | |
161 | false, /* pc_relative */ | |
162 | 0, /* bitpos */ | |
163 | complain_overflow_dont, /* complain_on_overflow */ | |
164 | bfd_elf_generic_reloc, /* special_function */ | |
165 | "R_LARCH_TLS_DTPREL32", /* name */ | |
166 | true, /* partial_inplace */ | |
167 | 0, /* src_mask */ | |
168 | 0xffffffff, /* dst_mask */ | |
169 | false), /* pcrel_offset */ | |
170 | ||
171 | HOWTO (R_LARCH_TLS_DTPREL64, /* type (9). */ | |
172 | 0, /* rightshift */ | |
173 | 4, /* size */ | |
174 | 64, /* bitsize */ | |
175 | false, /* pc_relative */ | |
176 | 0, /* bitpos */ | |
177 | complain_overflow_dont, /* complain_on_overflow */ | |
178 | bfd_elf_generic_reloc, /* special_function */ | |
179 | "R_LARCH_TLS_DTPREL64", /* name */ | |
180 | true, /* partial_inplace */ | |
181 | 0, /* src_mask */ | |
182 | ALL_ONES, /* dst_mask */ | |
183 | false), /* pcrel_offset */ | |
184 | ||
185 | HOWTO (R_LARCH_TLS_TPREL32, /* type (10). */ | |
186 | 0, /* rightshift */ | |
187 | 2, /* size */ | |
188 | 32, /* bitsize */ | |
189 | false, /* pc_relative */ | |
190 | 0, /* bitpos */ | |
191 | complain_overflow_dont, /* complain_on_overflow */ | |
192 | bfd_elf_generic_reloc, /* special_function */ | |
193 | "R_LARCH_TLS_TPREL32", /* name */ | |
194 | false, /* partial_inplace */ | |
195 | 0, /* src_mask */ | |
196 | 0xffffffff, /* dst_mask */ | |
197 | false), /* pcrel_offset */ | |
198 | ||
199 | HOWTO (R_LARCH_TLS_TPREL64, /* type (11). */ | |
200 | 0, /* rightshift */ | |
201 | 4, /* size */ | |
202 | 64, /* bitsize */ | |
203 | false, /* pc_relative */ | |
204 | 0, /* bitpos */ | |
205 | complain_overflow_dont, /* complain_on_overflow */ | |
206 | bfd_elf_generic_reloc, /* special_function */ | |
207 | "R_LARCH_TLS_TPREL64", /* name */ | |
208 | false, /* partial_inplace */ | |
209 | 0, /* src_mask */ | |
210 | ALL_ONES, /* dst_mask */ | |
211 | false), /* pcrel_offset */ | |
212 | ||
213 | HOWTO (R_LARCH_IRELATIVE, /* type (12). */ | |
214 | 0, /* rightshift */ | |
215 | 2, /* size */ | |
216 | 32, /* bitsize */ | |
217 | false, /* pc_relative */ | |
218 | 0, /* bitpos */ | |
219 | complain_overflow_dont, /* complain_on_overflow */ | |
220 | bfd_elf_generic_reloc, /* special_function */ | |
221 | "R_LARCH_IRELATIVE", /* name */ | |
222 | false, /* partial_inplace */ | |
223 | 0, /* src_mask */ | |
224 | 0xffffffff, /* dst_mask */ | |
225 | false), /* pcrel_offset */ | |
226 | ||
227 | EMPTY_HOWTO(13), | |
228 | EMPTY_HOWTO(14), | |
229 | EMPTY_HOWTO(15), | |
230 | EMPTY_HOWTO(16), | |
231 | EMPTY_HOWTO(17), | |
232 | EMPTY_HOWTO(18), | |
233 | EMPTY_HOWTO(19), | |
234 | ||
235 | HOWTO (R_LARCH_MARK_LA, /* type (20). */ | |
236 | 0, /* rightshift. */ | |
237 | 3, /* size. */ | |
238 | 0, /* bitsize. */ | |
239 | false, /* pc_relative. */ | |
240 | 0, /* bitpos. */ | |
241 | complain_overflow_signed, /* complain_on_overflow. */ | |
242 | bfd_elf_generic_reloc, /* special_function. */ | |
243 | "R_LARCH_MARK_LA", /* name. */ | |
244 | false, /* partial_inplace. */ | |
245 | 0, /* src_mask. */ | |
246 | 0, /* dst_mask. */ | |
247 | false), /* pcrel_offset. */ | |
248 | ||
249 | HOWTO (R_LARCH_MARK_PCREL, /* type (21). */ | |
250 | 0, /* rightshift. */ | |
251 | 3, /* size. */ | |
252 | 0, /* bitsize. */ | |
253 | false, /* pc_relative. */ | |
254 | 0, /* bitpos. */ | |
255 | complain_overflow_signed, /* complain_on_overflow. */ | |
256 | bfd_elf_generic_reloc, /* special_function. */ | |
257 | "R_LARCH_MARK_PCREL", /* name. */ | |
258 | false, /* partial_inplace. */ | |
259 | 0, /* src_mask. */ | |
260 | 0, /* dst_mask. */ | |
261 | false), /* pcrel_offset. */ | |
262 | ||
263 | HOWTO (R_LARCH_SOP_PUSH_PCREL, /* type (22). */ | |
264 | 2, /* rightshift. */ | |
265 | 2, /* size. */ | |
266 | 32, /* bitsize. */ | |
267 | true /* FIXME: somewhat use this. */, /* pc_relative. */ | |
268 | 0, /* bitpos. */ | |
269 | complain_overflow_signed, /* complain_on_overflow. */ | |
270 | bfd_elf_generic_reloc, /* special_function. */ | |
271 | "R_LARCH_SOP_PUSH_PCREL", /* name. */ | |
272 | false, /* partial_inplace. */ | |
273 | 0x03ffffff, /* src_mask. */ | |
274 | 0x03ffffff, /* dst_mask. */ | |
275 | false), /* pcrel_offset. */ | |
276 | ||
277 | /* type 23-37. */ | |
278 | LOONGARCH_HOWTO (SOP_PUSH_ABSOLUTE), | |
279 | LOONGARCH_HOWTO (SOP_PUSH_DUP), | |
280 | LOONGARCH_HOWTO (SOP_PUSH_GPREL), | |
281 | LOONGARCH_HOWTO (SOP_PUSH_TLS_TPREL), | |
282 | LOONGARCH_HOWTO (SOP_PUSH_TLS_GOT), | |
283 | LOONGARCH_HOWTO (SOP_PUSH_TLS_GD), | |
284 | LOONGARCH_HOWTO (SOP_PUSH_PLT_PCREL), | |
285 | LOONGARCH_HOWTO (SOP_ASSERT), | |
286 | LOONGARCH_HOWTO (SOP_NOT), | |
287 | LOONGARCH_HOWTO (SOP_SUB), | |
288 | LOONGARCH_HOWTO (SOP_SL), | |
289 | LOONGARCH_HOWTO (SOP_SR), | |
290 | LOONGARCH_HOWTO (SOP_ADD), | |
291 | LOONGARCH_HOWTO (SOP_AND), | |
292 | LOONGARCH_HOWTO (SOP_IF_ELSE), | |
293 | ||
294 | HOWTO (R_LARCH_SOP_POP_32_S_10_5, /* type (38). */ | |
295 | 0, /* rightshift. */ | |
296 | 2, /* size. */ | |
297 | 5, /* bitsize. */ | |
298 | false, /* pc_relative. */ | |
299 | 10, /* bitpos. */ | |
300 | complain_overflow_signed, /* complain_on_overflow. */ | |
301 | bfd_elf_generic_reloc, /* special_function. */ | |
302 | "R_LARCH_SOP_POP_32_S_10_5", /* name. */ | |
303 | false, /* partial_inplace. */ | |
304 | 0, /* src_mask */ | |
305 | 0x7c00, /* dst_mask */ | |
306 | false), /* pcrel_offset. */ | |
307 | ||
308 | HOWTO (R_LARCH_SOP_POP_32_U_10_12, /* type (39). */ | |
309 | 0, /* rightshift. */ | |
310 | 2, /* size. */ | |
311 | 12, /* bitsize. */ | |
312 | false, /* pc_relative. */ | |
313 | 10, /* bitpos. */ | |
314 | complain_overflow_signed, /* complain_on_overflow. */ | |
315 | bfd_elf_generic_reloc, /* special_function. */ | |
316 | "R_LARCH_SOP_POP_32_U_10_12", /* name. */ | |
317 | false, /* partial_inplace. */ | |
318 | 0, /* src_mask */ | |
319 | 0x3ffc00, /* dst_mask */ | |
320 | false), /* pcrel_offset. */ | |
321 | ||
322 | HOWTO (R_LARCH_SOP_POP_32_S_10_12, /* type (40). */ | |
323 | 0, /* rightshift. */ | |
324 | 2, /* size. */ | |
325 | 12, /* bitsize. */ | |
326 | false, /* pc_relative. */ | |
327 | 10, /* bitpos. */ | |
328 | complain_overflow_signed, /* complain_on_overflow. */ | |
329 | bfd_elf_generic_reloc, /* special_function. */ | |
330 | "R_LARCH_SOP_POP_32_S_10_12", /* name. */ | |
331 | false, /* partial_inplace. */ | |
332 | 0, /* src_mask */ | |
333 | 0x3ffc00, /* dst_mask */ | |
334 | false), /* pcrel_offset. */ | |
335 | ||
336 | HOWTO (R_LARCH_SOP_POP_32_S_10_16, /* type (41). */ | |
337 | 0, /* rightshift. */ | |
338 | 2, /* size. */ | |
339 | 16, /* bitsize. */ | |
340 | false, /* pc_relative. */ | |
341 | 10, /* bitpos. */ | |
342 | complain_overflow_signed, /* complain_on_overflow. */ | |
343 | bfd_elf_generic_reloc, /* special_function. */ | |
344 | "R_LARCH_SOP_POP_32_S_10_16", /* name. */ | |
345 | false, /* partial_inplace. */ | |
346 | 0, /* src_mask */ | |
347 | 0x3fffc00, /* dst_mask */ | |
348 | false), /* pcrel_offset. */ | |
349 | ||
350 | HOWTO (R_LARCH_SOP_POP_32_S_10_16_S2, /* type (42). */ | |
351 | 2, /* rightshift. */ | |
352 | 2, /* size. */ | |
353 | 16, /* bitsize. */ | |
354 | false, /* pc_relative. */ | |
355 | 10, /* bitpos. */ | |
356 | complain_overflow_signed, /* complain_on_overflow. */ | |
357 | bfd_elf_generic_reloc, /* special_function. */ | |
358 | "R_LARCH_SOP_POP_32_S_10_16_S2", /* name. */ | |
359 | false, /* partial_inplace. */ | |
360 | 0, /* src_mask */ | |
361 | 0x3fffc00, /* dst_mask */ | |
362 | false), /* pcrel_offset. */ | |
363 | ||
364 | HOWTO (R_LARCH_SOP_POP_32_S_5_20, /* type (43). */ | |
365 | 0, /* rightshift. */ | |
366 | 2, /* size. */ | |
367 | 20, /* bitsize. */ | |
368 | false, /* pc_relative. */ | |
369 | 5, /* bitpos. */ | |
370 | complain_overflow_signed, /* complain_on_overflow. */ | |
371 | bfd_elf_generic_reloc, /* special_function. */ | |
372 | "R_LARCH_SOP_POP_32_S_5_20", /* name. */ | |
373 | false, /* partial_inplace. */ | |
374 | 0, /* src_mask */ | |
375 | 0x1fffe0, /* dst_mask */ | |
376 | false), /* pcrel_offset. */ | |
377 | ||
378 | HOWTO (R_LARCH_SOP_POP_32_S_0_5_10_16_S2, /* type (44). */ | |
379 | 2, /* rightshift. */ | |
380 | 2, /* size. */ | |
381 | 21, /* bitsize. */ | |
382 | false, /* pc_relative. */ | |
383 | 0, /* bitpos. */ | |
384 | complain_overflow_signed, /* complain_on_overflow. */ | |
385 | bfd_elf_generic_reloc, /* special_function. */ | |
386 | "R_LARCH_SOP_POP_32_S_0_5_10_16_S2", /* name. */ | |
387 | false, /* partial_inplace. */ | |
388 | 0xfc0003e0, /* src_mask */ | |
389 | 0xfc0003e0, /* dst_mask */ | |
390 | false), /* pcrel_offset. */ | |
391 | ||
392 | HOWTO (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, /* type (45). */ | |
393 | 2, /* rightshift. */ | |
394 | 2, /* size. */ | |
395 | 26, /* bitsize. */ | |
396 | false, /* pc_relative. */ | |
397 | 0, /* bitpos. */ | |
398 | complain_overflow_signed, /* complain_on_overflow. */ | |
399 | bfd_elf_generic_reloc, /* special_function. */ | |
400 | "R_LARCH_SOP_POP_32_S_0_10_10_16_S2", /* name. */ | |
401 | false, /* partial_inplace. */ | |
402 | 0xfc000000, /* src_mask */ | |
403 | 0xfc000000, /* dst_mask */ | |
404 | false), /* pcrel_offset. */ | |
405 | ||
406 | HOWTO (R_LARCH_SOP_POP_32_U, /* type (46). */ | |
407 | 0, /* rightshift. */ | |
408 | 2, /* size. */ | |
409 | 32, /* bitsize. */ | |
410 | false, /* pc_relative. */ | |
411 | 0, /* bitpos. */ | |
412 | complain_overflow_signed, /* complain_on_overflow. */ | |
413 | bfd_elf_generic_reloc, /* special_function. */ | |
414 | "R_LARCH_SOP_POP_32_S_U", /* name. */ | |
415 | false, /* partial_inplace. */ | |
416 | 0, /* src_mask */ | |
417 | 0, /* dst_mask */ | |
418 | false), /* pcrel_offset. */ | |
419 | ||
420 | HOWTO (R_LARCH_ADD8, /* type (47). */ | |
421 | 0, /* rightshift. */ | |
422 | 2, /* size. */ | |
423 | 8, /* bitsize. */ | |
424 | false, /* pc_relative. */ | |
425 | 0, /* bitpos. */ | |
426 | complain_overflow_signed, /* complain_on_overflow. */ | |
427 | bfd_elf_generic_reloc, /* special_function. */ | |
428 | "R_LARCH_ADD8", /* name. */ | |
429 | false, /* partial_inplace. */ | |
430 | 0, /* src_mask */ | |
431 | 0xffffffff, /* dst_mask */ | |
432 | false), /* pcrel_offset. */ | |
433 | ||
434 | HOWTO (R_LARCH_ADD16, /* type (48). */ | |
435 | 0, /* rightshift. */ | |
436 | 2, /* size. */ | |
437 | 16, /* bitsize. */ | |
438 | false, /* pc_relative. */ | |
439 | 0, /* bitpos. */ | |
440 | complain_overflow_signed, /* complain_on_overflow. */ | |
441 | bfd_elf_generic_reloc, /* special_function. */ | |
442 | "R_LARCH_ADD16", /* name. */ | |
443 | false, /* partial_inplace. */ | |
444 | 0, /* src_mask */ | |
445 | 0xffffffff, /* dst_mask */ | |
446 | false), /* pcrel_offset. */ | |
447 | ||
448 | HOWTO (R_LARCH_ADD24, /* type (49). */ | |
449 | 0, /* rightshift. */ | |
450 | 2, /* size. */ | |
451 | 24, /* bitsize. */ | |
452 | false, /* pc_relative. */ | |
453 | 0, /* bitpos. */ | |
454 | complain_overflow_signed, /* complain_on_overflow. */ | |
455 | bfd_elf_generic_reloc, /* special_function. */ | |
456 | "R_LARCH_ADD24", /* name. */ | |
457 | false, /* partial_inplace. */ | |
458 | 0, /* src_mask */ | |
459 | 0xffffffff, /* dst_mask */ | |
460 | false), /* pcrel_offset. */ | |
461 | ||
462 | HOWTO (R_LARCH_ADD32, /* type (50). */ | |
463 | 0, /* rightshift. */ | |
464 | 2, /* size. */ | |
465 | 32, /* bitsize. */ | |
466 | false, /* pc_relative. */ | |
467 | 0, /* bitpos. */ | |
468 | complain_overflow_signed, /* complain_on_overflow. */ | |
469 | bfd_elf_generic_reloc, /* special_function. */ | |
470 | "R_LARCH_ADD32", /* name. */ | |
471 | false, /* partial_inplace. */ | |
472 | 0, /* src_mask */ | |
473 | 0xffffffff, /* dst_mask */ | |
474 | false), /* pcrel_offset. */ | |
475 | ||
476 | HOWTO (R_LARCH_ADD64, /* type (51). */ | |
477 | 0, /* rightshift. */ | |
478 | 4, /* size. */ | |
479 | 64, /* bitsize. */ | |
480 | false, /* pc_relative. */ | |
481 | 0, /* bitpos. */ | |
482 | complain_overflow_signed, /* complain_on_overflow. */ | |
483 | bfd_elf_generic_reloc, /* special_function. */ | |
484 | "R_LARCH_ADD64", /* name. */ | |
485 | false, /* partial_inplace. */ | |
486 | 0, /* src_mask */ | |
487 | ALL_ONES, /* dst_mask */ | |
488 | false), /* pcrel_offset. */ | |
489 | ||
490 | HOWTO (R_LARCH_SUB8, /* type (52). */ | |
491 | 0, /* rightshift. */ | |
492 | 2, /* size. */ | |
493 | 8, /* bitsize. */ | |
494 | false, /* pc_relative. */ | |
495 | 0, /* bitpos. */ | |
496 | complain_overflow_signed, /* complain_on_overflow. */ | |
497 | bfd_elf_generic_reloc, /* special_function. */ | |
498 | "R_LARCH_SUB8", /* name. */ | |
499 | false, /* partial_inplace. */ | |
500 | 0, /* src_mask */ | |
501 | 0xffffffff, /* dst_mask */ | |
502 | false), /* pcrel_offset. */ | |
503 | ||
504 | HOWTO (R_LARCH_SUB16, /* type (53). */ | |
505 | 0, /* rightshift. */ | |
506 | 2, /* size. */ | |
507 | 16, /* bitsize. */ | |
508 | false, /* pc_relative. */ | |
509 | 0, /* bitpos. */ | |
510 | complain_overflow_signed, /* complain_on_overflow. */ | |
511 | bfd_elf_generic_reloc, /* special_function. */ | |
512 | "R_LARCH_SUB16", /* name. */ | |
513 | false, /* partial_inplace. */ | |
514 | 0, /* src_mask */ | |
515 | 0xffffffff, /* dst_mask */ | |
516 | false), /* pcrel_offset. */ | |
517 | ||
518 | HOWTO (R_LARCH_SUB24, /* type (54). */ | |
519 | 0, /* rightshift. */ | |
520 | 2, /* size. */ | |
521 | 24, /* bitsize. */ | |
522 | false, /* pc_relative. */ | |
523 | 0, /* bitpos. */ | |
524 | complain_overflow_signed, /* complain_on_overflow. */ | |
525 | bfd_elf_generic_reloc, /* special_function. */ | |
526 | "R_LARCH_SUB24", /* name. */ | |
527 | false, /* partial_inplace. */ | |
528 | 0, /* src_mask */ | |
529 | 0xffffffff, /* dst_mask */ | |
530 | false), /* pcrel_offset. */ | |
531 | ||
532 | HOWTO (R_LARCH_SUB32, /* type (55). */ | |
533 | 0, /* rightshift. */ | |
534 | 2, /* size. */ | |
535 | 32, /* bitsize. */ | |
536 | false, /* pc_relative. */ | |
537 | 0, /* bitpos. */ | |
538 | complain_overflow_signed, /* complain_on_overflow. */ | |
539 | bfd_elf_generic_reloc, /* special_function. */ | |
540 | "R_LARCH_SUB32", /* name. */ | |
541 | false, /* partial_inplace. */ | |
542 | 0, /* src_mask */ | |
543 | 0xffffffff, /* dst_mask */ | |
544 | false), /* pcrel_offset. */ | |
545 | ||
546 | HOWTO (R_LARCH_SUB64, /* type (56). */ | |
547 | 0, /* rightshift. */ | |
548 | 4, /* size. */ | |
549 | 64, /* bitsize. */ | |
550 | false, /* pc_relative. */ | |
551 | 0, /* bitpos. */ | |
552 | complain_overflow_signed, /* complain_on_overflow. */ | |
553 | bfd_elf_generic_reloc, /* special_function. */ | |
554 | "R_LARCH_SUB64", /* name. */ | |
555 | false, /* partial_inplace. */ | |
556 | 0, /* src_mask */ | |
557 | ALL_ONES, /* dst_mask */ | |
558 | false), /* pcrel_offset. */ | |
559 | ||
560 | }; | |
561 | ||
562 | struct elf_reloc_map | |
563 | { | |
564 | bfd_reloc_code_real_type bfd_val; | |
565 | enum elf_loongarch_reloc_type elf_val; | |
566 | }; | |
567 | ||
568 | static const struct elf_reloc_map larch_reloc_map[] = | |
569 | { | |
570 | { BFD_RELOC_NONE, R_LARCH_NONE }, | |
571 | { BFD_RELOC_32, R_LARCH_32 }, | |
572 | { BFD_RELOC_64, R_LARCH_64 }, | |
573 | ||
574 | #define LOONGARCH_reloc_map(r_name) \ | |
575 | { \ | |
576 | BFD_RELOC_LARCH_##r_name, R_LARCH_##r_name \ | |
577 | } | |
578 | LOONGARCH_reloc_map (TLS_DTPMOD32), | |
579 | LOONGARCH_reloc_map (TLS_DTPMOD64), | |
580 | LOONGARCH_reloc_map (TLS_DTPREL32), | |
581 | LOONGARCH_reloc_map (TLS_DTPREL64), | |
582 | LOONGARCH_reloc_map (TLS_TPREL32), | |
583 | LOONGARCH_reloc_map (TLS_TPREL64), | |
584 | ||
585 | LOONGARCH_reloc_map (MARK_LA), | |
586 | LOONGARCH_reloc_map (MARK_PCREL), | |
587 | LOONGARCH_reloc_map (SOP_PUSH_PCREL), | |
588 | LOONGARCH_reloc_map (SOP_PUSH_ABSOLUTE), | |
589 | LOONGARCH_reloc_map (SOP_PUSH_DUP), | |
590 | LOONGARCH_reloc_map (SOP_PUSH_GPREL), | |
591 | LOONGARCH_reloc_map (SOP_PUSH_TLS_TPREL), | |
592 | LOONGARCH_reloc_map (SOP_PUSH_TLS_GOT), | |
593 | LOONGARCH_reloc_map (SOP_PUSH_TLS_GD), | |
594 | LOONGARCH_reloc_map (SOP_PUSH_PLT_PCREL), | |
595 | LOONGARCH_reloc_map (SOP_ASSERT), | |
596 | LOONGARCH_reloc_map (SOP_NOT), | |
597 | LOONGARCH_reloc_map (SOP_SUB), | |
598 | LOONGARCH_reloc_map (SOP_SL), | |
599 | LOONGARCH_reloc_map (SOP_SR), | |
600 | LOONGARCH_reloc_map (SOP_ADD), | |
601 | LOONGARCH_reloc_map (SOP_AND), | |
602 | LOONGARCH_reloc_map (SOP_IF_ELSE), | |
603 | LOONGARCH_reloc_map (SOP_POP_32_S_10_5), | |
604 | LOONGARCH_reloc_map (SOP_POP_32_U_10_12), | |
605 | LOONGARCH_reloc_map (SOP_POP_32_S_10_12), | |
606 | LOONGARCH_reloc_map (SOP_POP_32_S_10_16), | |
607 | LOONGARCH_reloc_map (SOP_POP_32_S_10_16_S2), | |
608 | LOONGARCH_reloc_map (SOP_POP_32_S_5_20), | |
609 | LOONGARCH_reloc_map (SOP_POP_32_S_0_5_10_16_S2), | |
610 | LOONGARCH_reloc_map (SOP_POP_32_S_0_10_10_16_S2), | |
611 | LOONGARCH_reloc_map (SOP_POP_32_U), | |
612 | LOONGARCH_reloc_map (ADD8), | |
613 | LOONGARCH_reloc_map (ADD16), | |
614 | LOONGARCH_reloc_map (ADD24), | |
615 | LOONGARCH_reloc_map (ADD32), | |
616 | LOONGARCH_reloc_map (ADD64), | |
617 | LOONGARCH_reloc_map (SUB8), | |
618 | LOONGARCH_reloc_map (SUB16), | |
619 | LOONGARCH_reloc_map (SUB24), | |
620 | LOONGARCH_reloc_map (SUB32), | |
621 | LOONGARCH_reloc_map (SUB64), | |
622 | }; | |
623 | ||
624 | reloc_howto_type * | |
625 | loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type) | |
626 | { | |
627 | size_t i; | |
628 | for (i = 0; i < ARRAY_SIZE (howto_table); i++) | |
629 | if (howto_table[i].type == r_type) | |
630 | return &howto_table[i]; | |
631 | ||
632 | (*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"), | |
633 | abfd, r_type); | |
634 | bfd_set_error (bfd_error_bad_value); | |
635 | return NULL; | |
636 | } | |
637 | ||
638 | reloc_howto_type * | |
639 | loongarch_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
640 | bfd_reloc_code_real_type code) | |
641 | { | |
642 | unsigned int i; | |
643 | for (i = 0; i < ARRAY_SIZE (larch_reloc_map); i++) | |
644 | if (larch_reloc_map[i].bfd_val == code) | |
645 | return loongarch_elf_rtype_to_howto (abfd, | |
646 | (int) larch_reloc_map[i].elf_val); | |
647 | ||
648 | return NULL; | |
649 | } | |
650 | ||
651 | reloc_howto_type * | |
652 | loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) | |
653 | { | |
654 | unsigned int i; | |
655 | ||
656 | for (i = 0; i < ARRAY_SIZE (howto_table); i++) | |
657 | if (howto_table[i].name && strcasecmp (howto_table[i].name, r_name) == 0) | |
658 | return &howto_table[i]; | |
659 | ||
660 | return NULL; | |
661 | } |