]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - bfd/elfxx-riscv.c
projects / thirdparty / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Fix the BFD library's find_nearest_line feature to produce consistent results.
[thirdparty/binutils-gdb.git] / bfd / elfxx-riscv.c
1 /* RISC-V-specific support for ELF.
2 Copyright (C) 2011-2023 Free Software Foundation, Inc.
3
4 Contributed by Andrew Waterman (andrew@sifive.com).
5 Based on TILE-Gx and MIPS targets.
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/riscv.h"
28 #include "opcode/riscv.h"
29 #include "libiberty.h"
30 #include "elfxx-riscv.h"
31 #include "safe-ctype.h"
32
33 #define MINUS_ONE ((bfd_vma)0 - 1)
34
35 /* Special handler for ADD/SUB relocations that allows them to be filled out
36 both in the pre-linked and post-linked file. This is necessary to make
37 pre-linked debug info work, as due to linker relaxations we need to emit
38 relocations for the debug info. */
39 static bfd_reloc_status_type riscv_elf_add_sub_reloc
40 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
41
42 /* The relocation table used for SHT_RELA sections. */
43
44 static reloc_howto_type howto_table[] =
45 {
46 /* No relocation. */
47 HOWTO (R_RISCV_NONE, /* type */
48 0, /* rightshift */
49 0, /* size */
50 0, /* bitsize */
51 false, /* pc_relative */
52 0, /* bitpos */
53 complain_overflow_dont, /* complain_on_overflow */
54 bfd_elf_generic_reloc, /* special_function */
55 "R_RISCV_NONE", /* name */
56 false, /* partial_inplace */
57 0, /* src_mask */
58 0, /* dst_mask */
59 false), /* pcrel_offset */
60
61 /* 32 bit relocation. */
62 HOWTO (R_RISCV_32, /* type */
63 0, /* rightshift */
64 4, /* size */
65 32, /* bitsize */
66 false, /* pc_relative */
67 0, /* bitpos */
68 complain_overflow_dont, /* complain_on_overflow */
69 bfd_elf_generic_reloc, /* special_function */
70 "R_RISCV_32", /* name */
71 false, /* partial_inplace */
72 0, /* src_mask */
73 0xffffffff, /* dst_mask */
74 false), /* pcrel_offset */
75
76 /* 64 bit relocation. */
77 HOWTO (R_RISCV_64, /* type */
78 0, /* rightshift */
79 8, /* size */
80 64, /* bitsize */
81 false, /* pc_relative */
82 0, /* bitpos */
83 complain_overflow_dont, /* complain_on_overflow */
84 bfd_elf_generic_reloc, /* special_function */
85 "R_RISCV_64", /* name */
86 false, /* partial_inplace */
87 0, /* src_mask */
88 MINUS_ONE, /* dst_mask */
89 false), /* pcrel_offset */
90
91 /* Relocation against a local symbol in a shared object. */
92 HOWTO (R_RISCV_RELATIVE, /* type */
93 0, /* rightshift */
94 4, /* size */
95 32, /* bitsize */
96 false, /* pc_relative */
97 0, /* bitpos */
98 complain_overflow_dont, /* complain_on_overflow */
99 bfd_elf_generic_reloc, /* special_function */
100 "R_RISCV_RELATIVE", /* name */
101 false, /* partial_inplace */
102 0, /* src_mask */
103 0xffffffff, /* dst_mask */
104 false), /* pcrel_offset */
105
106 HOWTO (R_RISCV_COPY, /* type */
107 0, /* rightshift */
108 0, /* this one is variable size */
109 0, /* bitsize */
110 false, /* pc_relative */
111 0, /* bitpos */
112 complain_overflow_bitfield, /* complain_on_overflow */
113 bfd_elf_generic_reloc, /* special_function */
114 "R_RISCV_COPY", /* name */
115 false, /* partial_inplace */
116 0, /* src_mask */
117 0, /* dst_mask */
118 false), /* pcrel_offset */
119
120 HOWTO (R_RISCV_JUMP_SLOT, /* type */
121 0, /* rightshift */
122 8, /* size */
123 64, /* bitsize */
124 false, /* pc_relative */
125 0, /* bitpos */
126 complain_overflow_bitfield, /* complain_on_overflow */
127 bfd_elf_generic_reloc, /* special_function */
128 "R_RISCV_JUMP_SLOT", /* name */
129 false, /* partial_inplace */
130 0, /* src_mask */
131 0, /* dst_mask */
132 false), /* pcrel_offset */
133
134 /* Dynamic TLS relocations. */
135 HOWTO (R_RISCV_TLS_DTPMOD32, /* type */
136 0, /* rightshift */
137 4, /* size */
138 32, /* bitsize */
139 false, /* pc_relative */
140 0, /* bitpos */
141 complain_overflow_dont, /* complain_on_overflow */
142 bfd_elf_generic_reloc, /* special_function */
143 "R_RISCV_TLS_DTPMOD32", /* name */
144 false, /* partial_inplace */
145 0, /* src_mask */
146 0xffffffff, /* dst_mask */
147 false), /* pcrel_offset */
148
149 HOWTO (R_RISCV_TLS_DTPMOD64, /* type */
150 0, /* rightshift */
151 8, /* size */
152 64, /* bitsize */
153 false, /* pc_relative */
154 0, /* bitpos */
155 complain_overflow_dont, /* complain_on_overflow */
156 bfd_elf_generic_reloc, /* special_function */
157 "R_RISCV_TLS_DTPMOD64", /* name */
158 false, /* partial_inplace */
159 0, /* src_mask */
160 MINUS_ONE, /* dst_mask */
161 false), /* pcrel_offset */
162
163 HOWTO (R_RISCV_TLS_DTPREL32, /* type */
164 0, /* rightshift */
165 4, /* size */
166 32, /* bitsize */
167 false, /* pc_relative */
168 0, /* bitpos */
169 complain_overflow_dont, /* complain_on_overflow */
170 bfd_elf_generic_reloc, /* special_function */
171 "R_RISCV_TLS_DTPREL32", /* name */
172 true, /* partial_inplace */
173 0, /* src_mask */
174 0xffffffff, /* dst_mask */
175 false), /* pcrel_offset */
176
177 HOWTO (R_RISCV_TLS_DTPREL64, /* type */
178 0, /* rightshift */
179 8, /* size */
180 64, /* bitsize */
181 false, /* pc_relative */
182 0, /* bitpos */
183 complain_overflow_dont, /* complain_on_overflow */
184 bfd_elf_generic_reloc, /* special_function */
185 "R_RISCV_TLS_DTPREL64", /* name */
186 true, /* partial_inplace */
187 0, /* src_mask */
188 MINUS_ONE, /* dst_mask */
189 false), /* pcrel_offset */
190
191 HOWTO (R_RISCV_TLS_TPREL32, /* type */
192 0, /* rightshift */
193 4, /* size */
194 32, /* bitsize */
195 false, /* pc_relative */
196 0, /* bitpos */
197 complain_overflow_dont, /* complain_on_overflow */
198 bfd_elf_generic_reloc, /* special_function */
199 "R_RISCV_TLS_TPREL32", /* name */
200 false, /* partial_inplace */
201 0, /* src_mask */
202 0xffffffff, /* dst_mask */
203 false), /* pcrel_offset */
204
205 HOWTO (R_RISCV_TLS_TPREL64, /* type */
206 0, /* rightshift */
207 8, /* size */
208 64, /* bitsize */
209 false, /* pc_relative */
210 0, /* bitpos */
211 complain_overflow_dont, /* complain_on_overflow */
212 bfd_elf_generic_reloc, /* special_function */
213 "R_RISCV_TLS_TPREL64", /* name */
214 false, /* partial_inplace */
215 0, /* src_mask */
216 MINUS_ONE, /* dst_mask */
217 false), /* pcrel_offset */
218
219 /* Reserved for future relocs that the dynamic linker must understand. */
220 EMPTY_HOWTO (12),
221 EMPTY_HOWTO (13),
222 EMPTY_HOWTO (14),
223 EMPTY_HOWTO (15),
224
225 /* 12-bit PC-relative branch offset. */
226 HOWTO (R_RISCV_BRANCH, /* type */
227 0, /* rightshift */
228 4, /* size */
229 32, /* bitsize */
230 true, /* pc_relative */
231 0, /* bitpos */
232 complain_overflow_signed, /* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_RISCV_BRANCH", /* name */
235 false, /* partial_inplace */
236 0, /* src_mask */
237 ENCODE_BTYPE_IMM (-1U), /* dst_mask */
238 true), /* pcrel_offset */
239
240 /* 20-bit PC-relative jump offset. */
241 HOWTO (R_RISCV_JAL, /* type */
242 0, /* rightshift */
243 4, /* size */
244 32, /* bitsize */
245 true, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_dont, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_RISCV_JAL", /* name */
250 false, /* partial_inplace */
251 0, /* src_mask */
252 ENCODE_JTYPE_IMM (-1U), /* dst_mask */
253 true), /* pcrel_offset */
254
255 /* 32-bit PC-relative function call (AUIPC/JALR). */
256 HOWTO (R_RISCV_CALL, /* type */
257 0, /* rightshift */
258 8, /* size */
259 64, /* bitsize */
260 true, /* pc_relative */
261 0, /* bitpos */
262 complain_overflow_dont, /* complain_on_overflow */
263 bfd_elf_generic_reloc, /* special_function */
264 "R_RISCV_CALL", /* name */
265 false, /* partial_inplace */
266 0, /* src_mask */
267 ENCODE_UTYPE_IMM (-1U) | ((bfd_vma) ENCODE_ITYPE_IMM (-1U) << 32),
268 /* dst_mask */
269 true), /* pcrel_offset */
270
271 /* Like R_RISCV_CALL, but not locally binding. */
272 HOWTO (R_RISCV_CALL_PLT, /* type */
273 0, /* rightshift */
274 8, /* size */
275 64, /* bitsize */
276 true, /* pc_relative */
277 0, /* bitpos */
278 complain_overflow_dont, /* complain_on_overflow */
279 bfd_elf_generic_reloc, /* special_function */
280 "R_RISCV_CALL_PLT", /* name */
281 false, /* partial_inplace */
282 0, /* src_mask */
283 ENCODE_UTYPE_IMM (-1U) | ((bfd_vma) ENCODE_ITYPE_IMM (-1U) << 32),
284 /* dst_mask */
285 true), /* pcrel_offset */
286
287 /* High 20 bits of 32-bit PC-relative GOT access. */
288 HOWTO (R_RISCV_GOT_HI20, /* type */
289 0, /* rightshift */
290 4, /* size */
291 32, /* bitsize */
292 true, /* pc_relative */
293 0, /* bitpos */
294 complain_overflow_dont, /* complain_on_overflow */
295 bfd_elf_generic_reloc, /* special_function */
296 "R_RISCV_GOT_HI20", /* name */
297 false, /* partial_inplace */
298 0, /* src_mask */
299 ENCODE_UTYPE_IMM (-1U), /* dst_mask */
300 false), /* pcrel_offset */
301
302 /* High 20 bits of 32-bit PC-relative TLS IE GOT access. */
303 HOWTO (R_RISCV_TLS_GOT_HI20, /* type */
304 0, /* rightshift */
305 4, /* size */
306 32, /* bitsize */
307 true, /* pc_relative */
308 0, /* bitpos */
309 complain_overflow_dont, /* complain_on_overflow */
310 bfd_elf_generic_reloc, /* special_function */
311 "R_RISCV_TLS_GOT_HI20", /* name */
312 false, /* partial_inplace */
313 0, /* src_mask */
314 ENCODE_UTYPE_IMM (-1U), /* dst_mask */
315 false), /* pcrel_offset */
316
317 /* High 20 bits of 32-bit PC-relative TLS GD GOT reference. */
318 HOWTO (R_RISCV_TLS_GD_HI20, /* type */
319 0, /* rightshift */
320 4, /* size */
321 32, /* bitsize */
322 true, /* pc_relative */
323 0, /* bitpos */
324 complain_overflow_dont, /* complain_on_overflow */
325 bfd_elf_generic_reloc, /* special_function */
326 "R_RISCV_TLS_GD_HI20", /* name */
327 false, /* partial_inplace */
328 0, /* src_mask */
329 ENCODE_UTYPE_IMM (-1U), /* dst_mask */
330 false), /* pcrel_offset */
331
332 /* High 20 bits of 32-bit PC-relative reference. */
333 HOWTO (R_RISCV_PCREL_HI20, /* type */
334 0, /* rightshift */
335 4, /* size */
336 32, /* bitsize */
337 true, /* pc_relative */
338 0, /* bitpos */
339 complain_overflow_dont, /* complain_on_overflow */
340 bfd_elf_generic_reloc, /* special_function */
341 "R_RISCV_PCREL_HI20", /* name */
342 false, /* partial_inplace */
343 0, /* src_mask */
344 ENCODE_UTYPE_IMM (-1U), /* dst_mask */
345 true), /* pcrel_offset */
346
347 /* Low 12 bits of a 32-bit PC-relative load or add. */
348 HOWTO (R_RISCV_PCREL_LO12_I, /* type */
349 0, /* rightshift */
350 4, /* size */
351 32, /* bitsize */
352 false, /* pc_relative */
353 0, /* bitpos */
354 complain_overflow_dont, /* complain_on_overflow */
355 bfd_elf_generic_reloc, /* special_function */
356 "R_RISCV_PCREL_LO12_I", /* name */
357 false, /* partial_inplace */
358 0, /* src_mask */
359 ENCODE_ITYPE_IMM (-1U), /* dst_mask */
360 false), /* pcrel_offset */
361
362 /* Low 12 bits of a 32-bit PC-relative store. */
363 HOWTO (R_RISCV_PCREL_LO12_S, /* type */
364 0, /* rightshift */
365 4, /* size */
366 32, /* bitsize */
367 false, /* pc_relative */
368 0, /* bitpos */
369 complain_overflow_dont, /* complain_on_overflow */
370 bfd_elf_generic_reloc, /* special_function */
371 "R_RISCV_PCREL_LO12_S", /* name */
372 false, /* partial_inplace */
373 0, /* src_mask */
374 ENCODE_STYPE_IMM (-1U), /* dst_mask */
375 false), /* pcrel_offset */
376
377 /* High 20 bits of 32-bit absolute address. */
378 HOWTO (R_RISCV_HI20, /* type */
379 0, /* rightshift */
380 4, /* size */
381 32, /* bitsize */
382 false, /* pc_relative */
383 0, /* bitpos */
384 complain_overflow_dont, /* complain_on_overflow */
385 bfd_elf_generic_reloc, /* special_function */
386 "R_RISCV_HI20", /* name */
387 false, /* partial_inplace */
388 0, /* src_mask */
389 ENCODE_UTYPE_IMM (-1U), /* dst_mask */
390 false), /* pcrel_offset */
391
392 /* High 12 bits of 32-bit load or add. */
393 HOWTO (R_RISCV_LO12_I, /* type */
394 0, /* rightshift */
395 4, /* size */
396 32, /* bitsize */
397 false, /* pc_relative */
398 0, /* bitpos */
399 complain_overflow_dont, /* complain_on_overflow */
400 bfd_elf_generic_reloc, /* special_function */
401 "R_RISCV_LO12_I", /* name */
402 false, /* partial_inplace */
403 0, /* src_mask */
404 ENCODE_ITYPE_IMM (-1U), /* dst_mask */
405 false), /* pcrel_offset */
406
407 /* High 12 bits of 32-bit store. */
408 HOWTO (R_RISCV_LO12_S, /* type */
409 0, /* rightshift */
410 4, /* size */
411 32, /* bitsize */
412 false, /* pc_relative */
413 0, /* bitpos */
414 complain_overflow_dont, /* complain_on_overflow */
415 bfd_elf_generic_reloc, /* special_function */
416 "R_RISCV_LO12_S", /* name */
417 false, /* partial_inplace */
418 0, /* src_mask */
419 ENCODE_STYPE_IMM (-1U), /* dst_mask */
420 false), /* pcrel_offset */
421
422 /* High 20 bits of TLS LE thread pointer offset. */
423 HOWTO (R_RISCV_TPREL_HI20, /* type */
424 0, /* rightshift */
425 4, /* size */
426 32, /* bitsize */
427 false, /* pc_relative */
428 0, /* bitpos */
429 complain_overflow_signed, /* complain_on_overflow */
430 bfd_elf_generic_reloc, /* special_function */
431 "R_RISCV_TPREL_HI20", /* name */
432 true, /* partial_inplace */
433 0, /* src_mask */
434 ENCODE_UTYPE_IMM (-1U), /* dst_mask */
435 false), /* pcrel_offset */
436
437 /* Low 12 bits of TLS LE thread pointer offset for loads and adds. */
438 HOWTO (R_RISCV_TPREL_LO12_I, /* type */
439 0, /* rightshift */
440 4, /* size */
441 32, /* bitsize */
442 false, /* pc_relative */
443 0, /* bitpos */
444 complain_overflow_signed, /* complain_on_overflow */
445 bfd_elf_generic_reloc, /* special_function */
446 "R_RISCV_TPREL_LO12_I", /* name */
447 false, /* partial_inplace */
448 0, /* src_mask */
449 ENCODE_ITYPE_IMM (-1U), /* dst_mask */
450 false), /* pcrel_offset */
451
452 /* Low 12 bits of TLS LE thread pointer offset for stores. */
453 HOWTO (R_RISCV_TPREL_LO12_S, /* type */
454 0, /* rightshift */
455 4, /* size */
456 32, /* bitsize */
457 false, /* pc_relative */
458 0, /* bitpos */
459 complain_overflow_signed, /* complain_on_overflow */
460 bfd_elf_generic_reloc, /* special_function */
461 "R_RISCV_TPREL_LO12_S", /* name */
462 false, /* partial_inplace */
463 0, /* src_mask */
464 ENCODE_STYPE_IMM (-1U), /* dst_mask */
465 false), /* pcrel_offset */
466
467 /* TLS LE thread pointer usage. May be relaxed. */
468 HOWTO (R_RISCV_TPREL_ADD, /* type */
469 0, /* rightshift */
470 0, /* size */
471 0, /* bitsize */
472 false, /* pc_relative */
473 0, /* bitpos */
474 complain_overflow_dont, /* complain_on_overflow */
475 bfd_elf_generic_reloc, /* special_function */
476 "R_RISCV_TPREL_ADD", /* name */
477 false, /* partial_inplace */
478 0, /* src_mask */
479 0, /* dst_mask */
480 false), /* pcrel_offset */
481
482 /* 8-bit in-place addition, for local label subtraction. */
483 HOWTO (R_RISCV_ADD8, /* type */
484 0, /* rightshift */
485 1, /* size */
486 8, /* bitsize */
487 false, /* pc_relative */
488 0, /* bitpos */
489 complain_overflow_dont, /* complain_on_overflow */
490 riscv_elf_add_sub_reloc, /* special_function */
491 "R_RISCV_ADD8", /* name */
492 false, /* partial_inplace */
493 0, /* src_mask */
494 0xff, /* dst_mask */
495 false), /* pcrel_offset */
496
497 /* 16-bit in-place addition, for local label subtraction. */
498 HOWTO (R_RISCV_ADD16, /* type */
499 0, /* rightshift */
500 2, /* size */
501 16, /* bitsize */
502 false, /* pc_relative */
503 0, /* bitpos */
504 complain_overflow_dont, /* complain_on_overflow */
505 riscv_elf_add_sub_reloc, /* special_function */
506 "R_RISCV_ADD16", /* name */
507 false, /* partial_inplace */
508 0, /* src_mask */
509 0xffff, /* dst_mask */
510 false), /* pcrel_offset */
511
512 /* 32-bit in-place addition, for local label subtraction. */
513 HOWTO (R_RISCV_ADD32, /* type */
514 0, /* rightshift */
515 4, /* size */
516 32, /* bitsize */
517 false, /* pc_relative */
518 0, /* bitpos */
519 complain_overflow_dont, /* complain_on_overflow */
520 riscv_elf_add_sub_reloc, /* special_function */
521 "R_RISCV_ADD32", /* name */
522 false, /* partial_inplace */
523 0, /* src_mask */
524 0xffffffff, /* dst_mask */
525 false), /* pcrel_offset */
526
527 /* 64-bit in-place addition, for local label subtraction. */
528 HOWTO (R_RISCV_ADD64, /* type */
529 0, /* rightshift */
530 8, /* size */
531 64, /* bitsize */
532 false, /* pc_relative */
533 0, /* bitpos */
534 complain_overflow_dont, /* complain_on_overflow */
535 riscv_elf_add_sub_reloc, /* special_function */
536 "R_RISCV_ADD64", /* name */
537 false, /* partial_inplace */
538 0, /* src_mask */
539 MINUS_ONE, /* dst_mask */
540 false), /* pcrel_offset */
541
542 /* 8-bit in-place addition, for local label subtraction. */
543 HOWTO (R_RISCV_SUB8, /* type */
544 0, /* rightshift */
545 1, /* size */
546 8, /* bitsize */
547 false, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 riscv_elf_add_sub_reloc, /* special_function */
551 "R_RISCV_SUB8", /* name */
552 false, /* partial_inplace */
553 0, /* src_mask */
554 0xff, /* dst_mask */
555 false), /* pcrel_offset */
556
557 /* 16-bit in-place addition, for local label subtraction. */
558 HOWTO (R_RISCV_SUB16, /* type */
559 0, /* rightshift */
560 2, /* size */
561 16, /* bitsize */
562 false, /* pc_relative */
563 0, /* bitpos */
564 complain_overflow_dont, /* complain_on_overflow */
565 riscv_elf_add_sub_reloc, /* special_function */
566 "R_RISCV_SUB16", /* name */
567 false, /* partial_inplace */
568 0, /* src_mask */
569 0xffff, /* dst_mask */
570 false), /* pcrel_offset */
571
572 /* 32-bit in-place addition, for local label subtraction. */
573 HOWTO (R_RISCV_SUB32, /* type */
574 0, /* rightshift */
575 4, /* size */
576 32, /* bitsize */
577 false, /* pc_relative */
578 0, /* bitpos */
579 complain_overflow_dont, /* complain_on_overflow */
580 riscv_elf_add_sub_reloc, /* special_function */
581 "R_RISCV_SUB32", /* name */
582 false, /* partial_inplace */
583 0, /* src_mask */
584 0xffffffff, /* dst_mask */
585 false), /* pcrel_offset */
586
587 /* 64-bit in-place addition, for local label subtraction. */
588 HOWTO (R_RISCV_SUB64, /* type */
589 0, /* rightshift */
590 8, /* size */
591 64, /* bitsize */
592 false, /* pc_relative */
593 0, /* bitpos */
594 complain_overflow_dont, /* complain_on_overflow */
595 riscv_elf_add_sub_reloc, /* special_function */
596 "R_RISCV_SUB64", /* name */
597 false, /* partial_inplace */
598 0, /* src_mask */
599 MINUS_ONE, /* dst_mask */
600 false), /* pcrel_offset */
601
602 /* 41 and 42 are reserved. */
603 EMPTY_HOWTO (0),
604 EMPTY_HOWTO (0),
605
606 /* Indicates an alignment statement. The addend field encodes how many
607 bytes of NOPs follow the statement. The desired alignment is the
608 addend rounded up to the next power of two. */
609 HOWTO (R_RISCV_ALIGN, /* type */
610 0, /* rightshift */
611 0, /* size */
612 0, /* bitsize */
613 false, /* pc_relative */
614 0, /* bitpos */
615 complain_overflow_dont, /* complain_on_overflow */
616 bfd_elf_generic_reloc, /* special_function */
617 "R_RISCV_ALIGN", /* name */
618 false, /* partial_inplace */
619 0, /* src_mask */
620 0, /* dst_mask */
621 false), /* pcrel_offset */
622
623 /* 8-bit PC-relative branch offset. */
624 HOWTO (R_RISCV_RVC_BRANCH, /* type */
625 0, /* rightshift */
626 2, /* size */
627 16, /* bitsize */
628 true, /* pc_relative */
629 0, /* bitpos */
630 complain_overflow_signed, /* complain_on_overflow */
631 bfd_elf_generic_reloc, /* special_function */
632 "R_RISCV_RVC_BRANCH", /* name */
633 false, /* partial_inplace */
634 0, /* src_mask */
635 ENCODE_CBTYPE_IMM (-1U), /* dst_mask */
636 true), /* pcrel_offset */
637
638 /* 11-bit PC-relative jump offset. */
639 HOWTO (R_RISCV_RVC_JUMP, /* type */
640 0, /* rightshift */
641 2, /* size */
642 16, /* bitsize */
643 true, /* pc_relative */
644 0, /* bitpos */
645 complain_overflow_dont, /* complain_on_overflow */
646 bfd_elf_generic_reloc, /* special_function */
647 "R_RISCV_RVC_JUMP", /* name */
648 false, /* partial_inplace */
649 0, /* src_mask */
650 ENCODE_CJTYPE_IMM (-1U), /* dst_mask */
651 true), /* pcrel_offset */
652
653 /* High 6 bits of 18-bit absolute address. */
654 HOWTO (R_RISCV_RVC_LUI, /* type */
655 0, /* rightshift */
656 2, /* size */
657 16, /* bitsize */
658 false, /* pc_relative */
659 0, /* bitpos */
660 complain_overflow_dont, /* complain_on_overflow */
661 bfd_elf_generic_reloc, /* special_function */
662 "R_RISCV_RVC_LUI", /* name */
663 false, /* partial_inplace */
664 0, /* src_mask */
665 ENCODE_CITYPE_IMM (-1U), /* dst_mask */
666 false), /* pcrel_offset */
667
668 /* GP-relative load. */
669 HOWTO (R_RISCV_GPREL_I, /* type */
670 0, /* rightshift */
671 4, /* size */
672 32, /* bitsize */
673 false, /* pc_relative */
674 0, /* bitpos */
675 complain_overflow_dont, /* complain_on_overflow */
676 bfd_elf_generic_reloc, /* special_function */
677 "R_RISCV_GPREL_I", /* name */
678 false, /* partial_inplace */
679 0, /* src_mask */
680 ENCODE_ITYPE_IMM (-1U), /* dst_mask */
681 false), /* pcrel_offset */
682
683 /* GP-relative store. */
684 HOWTO (R_RISCV_GPREL_S, /* type */
685 0, /* rightshift */
686 4, /* size */
687 32, /* bitsize */
688 false, /* pc_relative */
689 0, /* bitpos */
690 complain_overflow_dont, /* complain_on_overflow */
691 bfd_elf_generic_reloc, /* special_function */
692 "R_RISCV_GPREL_S", /* name */
693 false, /* partial_inplace */
694 0, /* src_mask */
695 ENCODE_STYPE_IMM (-1U), /* dst_mask */
696 false), /* pcrel_offset */
697
698 /* TP-relative TLS LE load. */
699 HOWTO (R_RISCV_TPREL_I, /* type */
700 0, /* rightshift */
701 4, /* size */
702 32, /* bitsize */
703 false, /* pc_relative */
704 0, /* bitpos */
705 complain_overflow_signed, /* complain_on_overflow */
706 bfd_elf_generic_reloc, /* special_function */
707 "R_RISCV_TPREL_I", /* name */
708 false, /* partial_inplace */
709 0, /* src_mask */
710 ENCODE_ITYPE_IMM (-1U), /* dst_mask */
711 false), /* pcrel_offset */
712
713 /* TP-relative TLS LE store. */
714 HOWTO (R_RISCV_TPREL_S, /* type */
715 0, /* rightshift */
716 4, /* size */
717 32, /* bitsize */
718 false, /* pc_relative */
719 0, /* bitpos */
720 complain_overflow_signed, /* complain_on_overflow */
721 bfd_elf_generic_reloc, /* special_function */
722 "R_RISCV_TPREL_S", /* name */
723 false, /* partial_inplace */
724 0, /* src_mask */
725 ENCODE_STYPE_IMM (-1U), /* dst_mask */
726 false), /* pcrel_offset */
727
728 /* The paired relocation may be relaxed. */
729 HOWTO (R_RISCV_RELAX, /* type */
730 0, /* rightshift */
731 0, /* size */
732 0, /* bitsize */
733 false, /* pc_relative */
734 0, /* bitpos */
735 complain_overflow_dont, /* complain_on_overflow */
736 bfd_elf_generic_reloc, /* special_function */
737 "R_RISCV_RELAX", /* name */
738 false, /* partial_inplace */
739 0, /* src_mask */
740 0, /* dst_mask */
741 false), /* pcrel_offset */
742
743 /* 6-bit in-place addition, for local label subtraction. */
744 HOWTO (R_RISCV_SUB6, /* type */
745 0, /* rightshift */
746 1, /* size */
747 8, /* bitsize */
748 false, /* pc_relative */
749 0, /* bitpos */
750 complain_overflow_dont, /* complain_on_overflow */
751 riscv_elf_add_sub_reloc, /* special_function */
752 "R_RISCV_SUB6", /* name */
753 false, /* partial_inplace */
754 0, /* src_mask */
755 0x3f, /* dst_mask */
756 false), /* pcrel_offset */
757
758 /* 6-bit in-place setting, for local label subtraction. */
759 HOWTO (R_RISCV_SET6, /* type */
760 0, /* rightshift */
761 1, /* size */
762 8, /* bitsize */
763 false, /* pc_relative */
764 0, /* bitpos */
765 complain_overflow_dont, /* complain_on_overflow */
766 bfd_elf_generic_reloc, /* special_function */
767 "R_RISCV_SET6", /* name */
768 false, /* partial_inplace */
769 0, /* src_mask */
770 0x3f, /* dst_mask */
771 false), /* pcrel_offset */
772
773 /* 8-bit in-place setting, for local label subtraction. */
774 HOWTO (R_RISCV_SET8, /* type */
775 0, /* rightshift */
776 1, /* size */
777 8, /* bitsize */
778 false, /* pc_relative */
779 0, /* bitpos */
780 complain_overflow_dont, /* complain_on_overflow */
781 bfd_elf_generic_reloc, /* special_function */
782 "R_RISCV_SET8", /* name */
783 false, /* partial_inplace */
784 0, /* src_mask */
785 0xff, /* dst_mask */
786 false), /* pcrel_offset */
787
788 /* 16-bit in-place setting, for local label subtraction. */
789 HOWTO (R_RISCV_SET16, /* type */
790 0, /* rightshift */
791 2, /* size */
792 16, /* bitsize */
793 false, /* pc_relative */
794 0, /* bitpos */
795 complain_overflow_dont, /* complain_on_overflow */
796 bfd_elf_generic_reloc, /* special_function */
797 "R_RISCV_SET16", /* name */
798 false, /* partial_inplace */
799 0, /* src_mask */
800 0xffff, /* dst_mask */
801 false), /* pcrel_offset */
802
803 /* 32-bit in-place setting, for local label subtraction. */
804 HOWTO (R_RISCV_SET32, /* type */
805 0, /* rightshift */
806 4, /* size */
807 32, /* bitsize */
808 false, /* pc_relative */
809 0, /* bitpos */
810 complain_overflow_dont, /* complain_on_overflow */
811 bfd_elf_generic_reloc, /* special_function */
812 "R_RISCV_SET32", /* name */
813 false, /* partial_inplace */
814 0, /* src_mask */
815 0xffffffff, /* dst_mask */
816 false), /* pcrel_offset */
817
818 /* 32-bit PC relative. */
819 HOWTO (R_RISCV_32_PCREL, /* type */
820 0, /* rightshift */
821 4, /* size */
822 32, /* bitsize */
823 true, /* pc_relative */
824 0, /* bitpos */
825 complain_overflow_dont, /* complain_on_overflow */
826 bfd_elf_generic_reloc, /* special_function */
827 "R_RISCV_32_PCREL", /* name */
828 false, /* partial_inplace */
829 0, /* src_mask */
830 0xffffffff, /* dst_mask */
831 false), /* pcrel_offset */
832
833 /* Relocation against a local ifunc symbol in a shared object. */
834 HOWTO (R_RISCV_IRELATIVE, /* type */
835 0, /* rightshift */
836 4, /* size */
837 32, /* bitsize */
838 false, /* pc_relative */
839 0, /* bitpos */
840 complain_overflow_dont, /* complain_on_overflow */
841 bfd_elf_generic_reloc, /* special_function */
842 "R_RISCV_IRELATIVE", /* name */
843 false, /* partial_inplace */
844 0, /* src_mask */
845 0xffffffff, /* dst_mask */
846 false), /* pcrel_offset */
847 };
848
849 /* A mapping from BFD reloc types to RISC-V ELF reloc types. */
850 struct elf_reloc_map
851 {
852 bfd_reloc_code_real_type bfd_val;
853 enum elf_riscv_reloc_type elf_val;
854 };
855
856 static const struct elf_reloc_map riscv_reloc_map[] =
857 {
858 { BFD_RELOC_NONE, R_RISCV_NONE },
859 { BFD_RELOC_32, R_RISCV_32 },
860 { BFD_RELOC_64, R_RISCV_64 },
861 { BFD_RELOC_RISCV_ADD8, R_RISCV_ADD8 },
862 { BFD_RELOC_RISCV_ADD16, R_RISCV_ADD16 },
863 { BFD_RELOC_RISCV_ADD32, R_RISCV_ADD32 },
864 { BFD_RELOC_RISCV_ADD64, R_RISCV_ADD64 },
865 { BFD_RELOC_RISCV_SUB8, R_RISCV_SUB8 },
866 { BFD_RELOC_RISCV_SUB16, R_RISCV_SUB16 },
867 { BFD_RELOC_RISCV_SUB32, R_RISCV_SUB32 },
868 { BFD_RELOC_RISCV_SUB64, R_RISCV_SUB64 },
869 { BFD_RELOC_CTOR, R_RISCV_64 },
870 { BFD_RELOC_12_PCREL, R_RISCV_BRANCH },
871 { BFD_RELOC_RISCV_HI20, R_RISCV_HI20 },
872 { BFD_RELOC_RISCV_LO12_I, R_RISCV_LO12_I },
873 { BFD_RELOC_RISCV_LO12_S, R_RISCV_LO12_S },
874 { BFD_RELOC_RISCV_PCREL_LO12_I, R_RISCV_PCREL_LO12_I },
875 { BFD_RELOC_RISCV_PCREL_LO12_S, R_RISCV_PCREL_LO12_S },
876 { BFD_RELOC_RISCV_CALL, R_RISCV_CALL },
877 { BFD_RELOC_RISCV_CALL_PLT, R_RISCV_CALL_PLT },
878 { BFD_RELOC_RISCV_PCREL_HI20, R_RISCV_PCREL_HI20 },
879 { BFD_RELOC_RISCV_JMP, R_RISCV_JAL },
880 { BFD_RELOC_RISCV_GOT_HI20, R_RISCV_GOT_HI20 },
881 { BFD_RELOC_RISCV_TLS_DTPMOD32, R_RISCV_TLS_DTPMOD32 },
882 { BFD_RELOC_RISCV_TLS_DTPREL32, R_RISCV_TLS_DTPREL32 },
883 { BFD_RELOC_RISCV_TLS_DTPMOD64, R_RISCV_TLS_DTPMOD64 },
884 { BFD_RELOC_RISCV_TLS_DTPREL64, R_RISCV_TLS_DTPREL64 },
885 { BFD_RELOC_RISCV_TLS_TPREL32, R_RISCV_TLS_TPREL32 },
886 { BFD_RELOC_RISCV_TLS_TPREL64, R_RISCV_TLS_TPREL64 },
887 { BFD_RELOC_RISCV_TPREL_HI20, R_RISCV_TPREL_HI20 },
888 { BFD_RELOC_RISCV_TPREL_ADD, R_RISCV_TPREL_ADD },
889 { BFD_RELOC_RISCV_TPREL_LO12_S, R_RISCV_TPREL_LO12_S },
890 { BFD_RELOC_RISCV_TPREL_LO12_I, R_RISCV_TPREL_LO12_I },
891 { BFD_RELOC_RISCV_TLS_GOT_HI20, R_RISCV_TLS_GOT_HI20 },
892 { BFD_RELOC_RISCV_TLS_GD_HI20, R_RISCV_TLS_GD_HI20 },
893 { BFD_RELOC_RISCV_ALIGN, R_RISCV_ALIGN },
894 { BFD_RELOC_RISCV_RVC_BRANCH, R_RISCV_RVC_BRANCH },
895 { BFD_RELOC_RISCV_RVC_JUMP, R_RISCV_RVC_JUMP },
896 { BFD_RELOC_RISCV_RVC_LUI, R_RISCV_RVC_LUI },
897 { BFD_RELOC_RISCV_GPREL_I, R_RISCV_GPREL_I },
898 { BFD_RELOC_RISCV_GPREL_S, R_RISCV_GPREL_S },
899 { BFD_RELOC_RISCV_TPREL_I, R_RISCV_TPREL_I },
900 { BFD_RELOC_RISCV_TPREL_S, R_RISCV_TPREL_S },
901 { BFD_RELOC_RISCV_RELAX, R_RISCV_RELAX },
902 { BFD_RELOC_RISCV_SUB6, R_RISCV_SUB6 },
903 { BFD_RELOC_RISCV_SET6, R_RISCV_SET6 },
904 { BFD_RELOC_RISCV_SET8, R_RISCV_SET8 },
905 { BFD_RELOC_RISCV_SET16, R_RISCV_SET16 },
906 { BFD_RELOC_RISCV_SET32, R_RISCV_SET32 },
907 { BFD_RELOC_RISCV_32_PCREL, R_RISCV_32_PCREL },
908 };
909
910 /* Given a BFD reloc type, return a howto structure. */
911
912 reloc_howto_type *
913 riscv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
914 bfd_reloc_code_real_type code)
915 {
916 unsigned int i;
917
918 for (i = 0; i < ARRAY_SIZE (riscv_reloc_map); i++)
919 if (riscv_reloc_map[i].bfd_val == code)
920 return &howto_table[(int) riscv_reloc_map[i].elf_val];
921
922 bfd_set_error (bfd_error_bad_value);
923 return NULL;
924 }
925
926 reloc_howto_type *
927 riscv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
928 {
929 unsigned int i;
930
931 for (i = 0; i < ARRAY_SIZE (howto_table); i++)
932 if (howto_table[i].name && strcasecmp (howto_table[i].name, r_name) == 0)
933 return &howto_table[i];
934
935 return NULL;
936 }
937
938 reloc_howto_type *
939 riscv_elf_rtype_to_howto (bfd *abfd, unsigned int r_type)
940 {
941 if (r_type >= ARRAY_SIZE (howto_table))
942 {
943 (*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"),
944 abfd, r_type);
945 bfd_set_error (bfd_error_bad_value);
946 return NULL;
947 }
948 return &howto_table[r_type];
949 }
950
951 /* Special_function of RISCV_ADD and RISCV_SUB relocations. */
952
953 static bfd_reloc_status_type
954 riscv_elf_add_sub_reloc (bfd *abfd,
955 arelent *reloc_entry,
956 asymbol *symbol,
957 void *data,
958 asection *input_section,
959 bfd *output_bfd,
960 char **error_message ATTRIBUTE_UNUSED)
961 {
962 reloc_howto_type *howto = reloc_entry->howto;
963 bfd_vma relocation;
964
965 if (output_bfd != NULL
966 && (symbol->flags & BSF_SECTION_SYM) == 0
967 && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
968 {
969 reloc_entry->address += input_section->output_offset;
970 return bfd_reloc_ok;
971 }
972
973 if (output_bfd != NULL)
974 return bfd_reloc_continue;
975
976 relocation = symbol->value + symbol->section->output_section->vma
977 + symbol->section->output_offset + reloc_entry->addend;
978
979 bfd_size_type octets = reloc_entry->address
980 * bfd_octets_per_byte (abfd, input_section);
981 if (!bfd_reloc_offset_in_range (reloc_entry->howto, abfd,
982 input_section, octets))
983 return bfd_reloc_outofrange;
984
985 bfd_vma old_value = bfd_get (howto->bitsize, abfd,
986 data + reloc_entry->address);
987
988 switch (howto->type)
989 {
990 case R_RISCV_ADD8:
991 case R_RISCV_ADD16:
992 case R_RISCV_ADD32:
993 case R_RISCV_ADD64:
994 relocation = old_value + relocation;
995 break;
996 case R_RISCV_SUB6:
997 relocation = (old_value & ~howto->dst_mask)
998 | (((old_value & howto->dst_mask) - relocation)
999 & howto->dst_mask);
1000 break;
1001 case R_RISCV_SUB8:
1002 case R_RISCV_SUB16:
1003 case R_RISCV_SUB32:
1004 case R_RISCV_SUB64:
1005 relocation = old_value - relocation;
1006 break;
1007 }
1008 bfd_put (howto->bitsize, abfd, relocation, data + reloc_entry->address);
1009
1010 return bfd_reloc_ok;
1011 }
1012
1013 /* Always add the IMPLICIT for the SUBSET. */
1014
1015 static bool
1016 check_implicit_always (const char *implicit ATTRIBUTE_UNUSED,
1017 riscv_subset_t *subset ATTRIBUTE_UNUSED)
1018 {
1019 return true;
1020 }
1021
1022 /* Add the IMPLICIT only when the version of SUBSET less than 2.1. */
1023
1024 static bool
1025 check_implicit_for_i (const char *implicit ATTRIBUTE_UNUSED,
1026 riscv_subset_t *subset)
1027 {
1028 return (subset->major_version < 2
1029 || (subset->major_version == 2
1030 && subset->minor_version < 1));
1031 }
1032
1033 /* Record all implicit information for the subsets. */
1034 struct riscv_implicit_subset
1035 {
1036 const char *subset_name;
1037 const char *implicit_name;
1038 /* A function to determine if we need to add the implicit subset. */
1039 bool (*check_func) (const char *, riscv_subset_t *);
1040 };
1041 static struct riscv_implicit_subset riscv_implicit_subsets[] =
1042 {
1043 {"e", "i", check_implicit_always},
1044 {"i", "zicsr", check_implicit_for_i},
1045 {"i", "zifencei", check_implicit_for_i},
1046 {"g", "i", check_implicit_always},
1047 {"g", "m", check_implicit_always},
1048 {"g", "a", check_implicit_always},
1049 {"g", "f", check_implicit_always},
1050 {"g", "d", check_implicit_always},
1051 {"g", "zicsr", check_implicit_always},
1052 {"g", "zifencei", check_implicit_always},
1053 {"m", "zmmul", check_implicit_always},
1054 {"h", "zicsr", check_implicit_always},
1055 {"q", "d", check_implicit_always},
1056 {"v", "d", check_implicit_always},
1057 {"v", "zve64d", check_implicit_always},
1058 {"v", "zvl128b", check_implicit_always},
1059 {"zve64d", "d", check_implicit_always},
1060 {"zve64d", "zve64f", check_implicit_always},
1061 {"zve64f", "zve32f", check_implicit_always},
1062 {"zve64f", "zve64x", check_implicit_always},
1063 {"zve64f", "zvl64b", check_implicit_always},
1064 {"zve32f", "f", check_implicit_always},
1065 {"zve32f", "zvl32b", check_implicit_always},
1066 {"zve32f", "zve32x", check_implicit_always},
1067 {"zve64x", "zve32x", check_implicit_always},
1068 {"zve64x", "zvl64b", check_implicit_always},
1069 {"zve32x", "zvl32b", check_implicit_always},
1070 {"zvl65536b", "zvl32768b", check_implicit_always},
1071 {"zvl32768b", "zvl16384b", check_implicit_always},
1072 {"zvl16384b", "zvl8192b", check_implicit_always},
1073 {"zvl8192b", "zvl4096b", check_implicit_always},
1074 {"zvl4096b", "zvl2048b", check_implicit_always},
1075 {"zvl2048b", "zvl1024b", check_implicit_always},
1076 {"zvl1024b", "zvl512b", check_implicit_always},
1077 {"zvl512b", "zvl256b", check_implicit_always},
1078 {"zvl256b", "zvl128b", check_implicit_always},
1079 {"zvl128b", "zvl64b", check_implicit_always},
1080 {"zvl64b", "zvl32b", check_implicit_always},
1081 {"d", "f", check_implicit_always},
1082 {"zfh", "zfhmin", check_implicit_always},
1083 {"zfhmin", "f", check_implicit_always},
1084 {"f", "zicsr", check_implicit_always},
1085 {"zqinx", "zdinx", check_implicit_always},
1086 {"zdinx", "zfinx", check_implicit_always},
1087 {"zhinx", "zhinxmin", check_implicit_always},
1088 {"zhinxmin", "zfinx", check_implicit_always},
1089 {"zfinx", "zicsr", check_implicit_always},
1090 {"zk", "zkn", check_implicit_always},
1091 {"zk", "zkr", check_implicit_always},
1092 {"zk", "zkt", check_implicit_always},
1093 {"zkn", "zbkb", check_implicit_always},
1094 {"zkn", "zbkc", check_implicit_always},
1095 {"zkn", "zbkx", check_implicit_always},
1096 {"zkn", "zkne", check_implicit_always},
1097 {"zkn", "zknd", check_implicit_always},
1098 {"zkn", "zknh", check_implicit_always},
1099 {"zks", "zbkb", check_implicit_always},
1100 {"zks", "zbkc", check_implicit_always},
1101 {"zks", "zbkx", check_implicit_always},
1102 {"zks", "zksed", check_implicit_always},
1103 {"zks", "zksh", check_implicit_always},
1104 {"smaia", "ssaia", check_implicit_always},
1105 {"smstateen", "ssstateen", check_implicit_always},
1106 {"smepmp", "zicsr", check_implicit_always},
1107 {"ssaia", "zicsr", check_implicit_always},
1108 {"sscofpmf", "zicsr", check_implicit_always},
1109 {"ssstateen", "zicsr", check_implicit_always},
1110 {"sstc", "zicsr", check_implicit_always},
1111 {NULL, NULL, NULL}
1112 };
1113
1114 /* For default_enable field, decide if the extension should
1115 be enbaled by default. */
1116
1117 #define EXT_DEFAULT 0x1
1118
1119 /* List all extensions that binutils should know about. */
1120
1121 struct riscv_supported_ext
1122 {
1123 const char *name;
1124 enum riscv_spec_class isa_spec_class;
1125 int major_version;
1126 int minor_version;
1127 unsigned long default_enable;
1128 };
1129
1130 /* The standard extensions must be added in canonical order. */
1131
1132 static struct riscv_supported_ext riscv_supported_std_ext[] =
1133 {
1134 {"e", ISA_SPEC_CLASS_20191213, 1, 9, 0 },
1135 {"e", ISA_SPEC_CLASS_20190608, 1, 9, 0 },
1136 {"e", ISA_SPEC_CLASS_2P2, 1, 9, 0 },
1137 {"i", ISA_SPEC_CLASS_20191213, 2, 1, 0 },
1138 {"i", ISA_SPEC_CLASS_20190608, 2, 1, 0 },
1139 {"i", ISA_SPEC_CLASS_2P2, 2, 0, 0 },
1140 /* The g is a special case which we don't want to output it,
1141 but still need it when adding implicit extensions. */
1142 {"g", ISA_SPEC_CLASS_NONE, RISCV_UNKNOWN_VERSION, RISCV_UNKNOWN_VERSION, EXT_DEFAULT },
1143 {"m", ISA_SPEC_CLASS_20191213, 2, 0, 0 },
1144 {"m", ISA_SPEC_CLASS_20190608, 2, 0, 0 },
1145 {"m", ISA_SPEC_CLASS_2P2, 2, 0, 0 },
1146 {"a", ISA_SPEC_CLASS_20191213, 2, 1, 0 },
1147 {"a", ISA_SPEC_CLASS_20190608, 2, 0, 0 },
1148 {"a", ISA_SPEC_CLASS_2P2, 2, 0, 0 },
1149 {"f", ISA_SPEC_CLASS_20191213, 2, 2, 0 },
1150 {"f", ISA_SPEC_CLASS_20190608, 2, 2, 0 },
1151 {"f", ISA_SPEC_CLASS_2P2, 2, 0, 0 },
1152 {"d", ISA_SPEC_CLASS_20191213, 2, 2, 0 },
1153 {"d", ISA_SPEC_CLASS_20190608, 2, 2, 0 },
1154 {"d", ISA_SPEC_CLASS_2P2, 2, 0, 0 },
1155 {"q", ISA_SPEC_CLASS_20191213, 2, 2, 0 },
1156 {"q", ISA_SPEC_CLASS_20190608, 2, 2, 0 },
1157 {"q", ISA_SPEC_CLASS_2P2, 2, 0, 0 },
1158 {"c", ISA_SPEC_CLASS_20191213, 2, 0, 0 },
1159 {"c", ISA_SPEC_CLASS_20190608, 2, 0, 0 },
1160 {"c", ISA_SPEC_CLASS_2P2, 2, 0, 0 },
1161 {"v", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1162 {"h", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1163 {NULL, 0, 0, 0, 0}
1164 };
1165
1166 static struct riscv_supported_ext riscv_supported_std_z_ext[] =
1167 {
1168 {"zicbom", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1169 {"zicbop", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1170 {"zicboz", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1171 {"zicsr", ISA_SPEC_CLASS_20191213, 2, 0, 0 },
1172 {"zicsr", ISA_SPEC_CLASS_20190608, 2, 0, 0 },
1173 {"zifencei", ISA_SPEC_CLASS_20191213, 2, 0, 0 },
1174 {"zifencei", ISA_SPEC_CLASS_20190608, 2, 0, 0 },
1175 {"zihintpause", ISA_SPEC_CLASS_DRAFT, 2, 0, 0 },
1176 {"zmmul", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1177 {"zawrs", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1178 {"zfh", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1179 {"zfhmin", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1180 {"zfinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1181 {"zdinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1182 {"zqinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1183 {"zhinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1184 {"zhinxmin", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1185 {"zbb", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1186 {"zba", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1187 {"zbc", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1188 {"zbs", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1189 {"zbkb", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1190 {"zbkc", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1191 {"zbkx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1192 {"zk", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1193 {"zkn", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1194 {"zknd", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1195 {"zkne", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1196 {"zknh", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1197 {"zkr", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1198 {"zks", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1199 {"zksed", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1200 {"zksh", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1201 {"zkt", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1202 {"zve32x", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1203 {"zve32f", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1204 {"zve32d", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1205 {"zve64x", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1206 {"zve64f", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1207 {"zve64d", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1208 {"zvl32b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1209 {"zvl64b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1210 {"zvl128b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1211 {"zvl256b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1212 {"zvl512b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1213 {"zvl1024b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1214 {"zvl2048b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1215 {"zvl4096b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1216 {"zvl8192b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1217 {"zvl16384b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1218 {"zvl32768b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1219 {"zvl65536b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1220 {"ztso", ISA_SPEC_CLASS_DRAFT, 0, 1, 0 },
1221 {NULL, 0, 0, 0, 0}
1222 };
1223
1224 static struct riscv_supported_ext riscv_supported_std_s_ext[] =
1225 {
1226 {"smaia", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1227 {"smepmp", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1228 {"smstateen", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1229 {"ssaia", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1230 {"sscofpmf", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1231 {"ssstateen", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1232 {"sstc", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1233 {"svinval", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1234 {"svnapot", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1235 {"svpbmt", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1236 {NULL, 0, 0, 0, 0}
1237 };
1238
1239 static struct riscv_supported_ext riscv_supported_std_zxm_ext[] =
1240 {
1241 {NULL, 0, 0, 0, 0}
1242 };
1243
1244 static struct riscv_supported_ext riscv_supported_vendor_x_ext[] =
1245 {
1246 {"xtheadba", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1247 {"xtheadbb", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1248 {"xtheadbs", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1249 {"xtheadcmo", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1250 {"xtheadcondmov", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1251 {"xtheadfmemidx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1252 {"xtheadfmv", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1253 {"xtheadint", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1254 {"xtheadmac", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1255 {"xtheadmemidx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1256 {"xtheadmempair", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1257 {"xtheadsync", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },
1258 {NULL, 0, 0, 0, 0}
1259 };
1260
1261 const struct riscv_supported_ext *riscv_all_supported_ext[] =
1262 {
1263 riscv_supported_std_ext,
1264 riscv_supported_std_z_ext,
1265 riscv_supported_std_s_ext,
1266 riscv_supported_std_zxm_ext,
1267 riscv_supported_vendor_x_ext,
1268 NULL
1269 };
1270
1271 /* ISA extension prefixed name class. Must define them in parsing order. */
1272 enum riscv_prefix_ext_class
1273 {
1274 RV_ISA_CLASS_Z = 1,
1275 RV_ISA_CLASS_S,
1276 RV_ISA_CLASS_ZXM,
1277 RV_ISA_CLASS_X,
1278 RV_ISA_CLASS_SINGLE
1279 };
1280
1281 /* Record the strings of the prefixed extensions, and their corresponding
1282 classes. The more letters of the prefix string, the more forward it must
1283 be defined. Otherwise, the riscv_get_prefix_class will map it to the
1284 wrong classes. */
1285 struct riscv_parse_prefix_config
1286 {
1287 /* Class of the extension. */
1288 enum riscv_prefix_ext_class class;
1289
1290 /* Prefix string for error printing and internal parser usage. */
1291 const char *prefix;
1292 };
1293 static const struct riscv_parse_prefix_config parse_config[] =
1294 {
1295 {RV_ISA_CLASS_ZXM, "zxm"},
1296 {RV_ISA_CLASS_Z, "z"},
1297 {RV_ISA_CLASS_S, "s"},
1298 {RV_ISA_CLASS_X, "x"},
1299 {RV_ISA_CLASS_SINGLE, NULL}
1300 };
1301
1302 /* Get the prefixed name class for the extensions, the class also
1303 means the order of the prefixed extensions. */
1304
1305 static enum riscv_prefix_ext_class
1306 riscv_get_prefix_class (const char *arch)
1307 {
1308 int i = 0;
1309 while (parse_config[i].class != RV_ISA_CLASS_SINGLE)
1310 {
1311 if (strncmp (arch, parse_config[i].prefix,
1312 strlen (parse_config[i].prefix)) == 0)
1313 return parse_config[i].class;
1314 i++;
1315 }
1316 return RV_ISA_CLASS_SINGLE;
1317 }
1318
1319 /* Check KNOWN_EXTS to see if the EXT is supported. */
1320
1321 static bool
1322 riscv_known_prefixed_ext (const char *ext,
1323 struct riscv_supported_ext *known_exts)
1324 {
1325 size_t i;
1326 for (i = 0; known_exts[i].name != NULL; ++i)
1327 if (strcmp (ext, known_exts[i].name) == 0)
1328 return true;
1329 return false;
1330 }
1331
1332 /* Check whether the prefixed extension is recognized or not. Return
1333 true if recognized, otehrwise return false. */
1334
1335 static bool
1336 riscv_recognized_prefixed_ext (const char *ext)
1337 {
1338 enum riscv_prefix_ext_class class = riscv_get_prefix_class (ext);
1339 switch (class)
1340 {
1341 case RV_ISA_CLASS_Z:
1342 return riscv_known_prefixed_ext (ext, riscv_supported_std_z_ext);
1343 case RV_ISA_CLASS_ZXM:
1344 return riscv_known_prefixed_ext (ext, riscv_supported_std_zxm_ext);
1345 case RV_ISA_CLASS_S:
1346 return riscv_known_prefixed_ext (ext, riscv_supported_std_s_ext);
1347 case RV_ISA_CLASS_X:
1348 /* Only the single x is unrecognized. */
1349 if (strcmp (ext, "x") != 0)
1350 return true;
1351 default:
1352 break;
1353 }
1354 return false;
1355 }
1356
1357 /* Canonical order for single letter extensions. */
1358 static const char riscv_ext_canonical_order[] = "eigmafdqlcbkjtpvnh";
1359
1360 /* Array is used to compare the orders of standard extensions quickly. */
1361 static int riscv_ext_order[26] = {0};
1362
1363 /* Init the riscv_ext_order array. */
1364
1365 static void
1366 riscv_init_ext_order (void)
1367 {
1368 static bool inited = false;
1369 if (inited)
1370 return;
1371
1372 /* The orders of all standard extensions are positive. */
1373 int order = 1;
1374
1375 for (const char *ext = &riscv_ext_canonical_order[0]; *ext; ++ext)
1376 riscv_ext_order[(*ext - 'a')] = order++;
1377
1378 /* Some of the prefixed keyword are not single letter, so we set
1379 their prefixed orders in the riscv_compare_subsets directly,
1380 not through the riscv_ext_order. */
1381
1382 inited = true;
1383 }
1384
1385 /* Similar to the strcmp. It returns an integer less than, equal to,
1386 or greater than zero if `subset2` is found, respectively, to be less
1387 than, to match, or be greater than `subset1`.
1388
1389 The order values,
1390 Zero: Preserved keywords.
1391 Positive number: Standard extensions.
1392 Negative number: Prefixed keywords. */
1393
1394 int
1395 riscv_compare_subsets (const char *subset1, const char *subset2)
1396 {
1397 int order1 = riscv_ext_order[(*subset1 - 'a')];
1398 int order2 = riscv_ext_order[(*subset2 - 'a')];
1399
1400 /* Compare the standard extension first. */
1401 if (order1 > 0 && order2 > 0)
1402 return order1 - order2;
1403
1404 /* Set the prefixed orders to negative numbers. */
1405 enum riscv_prefix_ext_class class1 = riscv_get_prefix_class (subset1);
1406 enum riscv_prefix_ext_class class2 = riscv_get_prefix_class (subset2);
1407
1408 if (class1 != RV_ISA_CLASS_SINGLE)
1409 order1 = - (int) class1;
1410 if (class2 != RV_ISA_CLASS_SINGLE)
1411 order2 = - (int) class2;
1412
1413 if (order1 == order2)
1414 {
1415 /* Compare the standard addition z extensions. */
1416 if (class1 == RV_ISA_CLASS_Z)
1417 {
1418 order1 = riscv_ext_order[(*++subset1 - 'a')];
1419 order2 = riscv_ext_order[(*++subset2 - 'a')];
1420 if (order1 != order2)
1421 return order1 - order2;
1422 }
1423 return strcasecmp (++subset1, ++subset2);
1424 }
1425
1426 return order2 - order1;
1427 }
1428
1429 /* Find subset in the list. Return TRUE and set `current` to the subset
1430 if it is found. Otherwise, return FALSE and set `current` to the place
1431 where we should insert the subset. However, return FALSE with the NULL
1432 `current` means we should insert the subset at the head of subset list,
1433 if needed. */
1434
1435 bool
1436 riscv_lookup_subset (const riscv_subset_list_t *subset_list,
1437 const char *subset,
1438 riscv_subset_t **current)
1439 {
1440 riscv_subset_t *s, *pre_s = NULL;
1441
1442 /* If the subset is added in order, then just add it at the tail. */
1443 if (subset_list->tail != NULL
1444 && riscv_compare_subsets (subset_list->tail->name, subset) < 0)
1445 {
1446 *current = subset_list->tail;
1447 return false;
1448 }
1449
1450 for (s = subset_list->head;
1451 s != NULL;
1452 pre_s = s, s = s->next)
1453 {
1454 int cmp = riscv_compare_subsets (s->name, subset);
1455 if (cmp == 0)
1456 {
1457 *current = s;
1458 return true;
1459 }
1460 else if (cmp > 0)
1461 break;
1462 }
1463 *current = pre_s;
1464
1465 return false;
1466 }
1467
1468 /* Add the extension to the subset list. Search the
1469 list first, and then find the right place to add. */
1470
1471 void
1472 riscv_add_subset (riscv_subset_list_t *subset_list,
1473 const char *subset,
1474 int major,
1475 int minor)
1476 {
1477 riscv_subset_t *current, *new;
1478
1479 if (riscv_lookup_subset (subset_list, subset, &current))
1480 return;
1481
1482 new = xmalloc (sizeof *new);
1483 new->name = xstrdup (subset);
1484 new->major_version = major;
1485 new->minor_version = minor;
1486 new->next = NULL;
1487
1488 if (current != NULL)
1489 {
1490 new->next = current->next;
1491 current->next = new;
1492 }
1493 else
1494 {
1495 new->next = subset_list->head;
1496 subset_list->head = new;
1497 }
1498
1499 if (new->next == NULL)
1500 subset_list->tail = new;
1501 }
1502
1503 /* Get the default versions from the riscv_supported_*ext tables. */
1504
1505 static void
1506 riscv_get_default_ext_version (enum riscv_spec_class *default_isa_spec,
1507 const char *name,
1508 int *major_version,
1509 int *minor_version)
1510 {
1511 if (name == NULL
1512 || default_isa_spec == NULL
1513 || *default_isa_spec == ISA_SPEC_CLASS_NONE)
1514 return;
1515
1516 struct riscv_supported_ext *table = NULL;
1517 enum riscv_prefix_ext_class class = riscv_get_prefix_class (name);
1518 switch (class)
1519 {
1520 case RV_ISA_CLASS_ZXM: table = riscv_supported_std_zxm_ext; break;
1521 case RV_ISA_CLASS_Z: table = riscv_supported_std_z_ext; break;
1522 case RV_ISA_CLASS_S: table = riscv_supported_std_s_ext; break;
1523 case RV_ISA_CLASS_X: table = riscv_supported_vendor_x_ext; break;
1524 default:
1525 table = riscv_supported_std_ext;
1526 }
1527
1528 int i = 0;
1529 while (table != NULL && table[i].name != NULL)
1530 {
1531 if (strcmp (table[i].name, name) == 0
1532 && (table[i].isa_spec_class == ISA_SPEC_CLASS_DRAFT
1533 || table[i].isa_spec_class == *default_isa_spec))
1534 {
1535 *major_version = table[i].major_version;
1536 *minor_version = table[i].minor_version;
1537 return;
1538 }
1539 i++;
1540 }
1541 }
1542
1543 /* Find the default versions for the extension before adding them to
1544 the subset list, if their versions are RISCV_UNKNOWN_VERSION.
1545 Afterwards, report errors if we can not find their default versions. */
1546
1547 static void
1548 riscv_parse_add_subset (riscv_parse_subset_t *rps,
1549 const char *subset,
1550 int major,
1551 int minor,
1552 bool implicit)
1553 {
1554 int major_version = major;
1555 int minor_version = minor;
1556
1557 if (major_version == RISCV_UNKNOWN_VERSION
1558 || minor_version == RISCV_UNKNOWN_VERSION)
1559 riscv_get_default_ext_version (rps->isa_spec, subset,
1560 &major_version, &minor_version);
1561
1562 /* We don't care the versions of the implicit extensions. */
1563 if (!implicit
1564 && (major_version == RISCV_UNKNOWN_VERSION
1565 || minor_version == RISCV_UNKNOWN_VERSION))
1566 {
1567 if (subset[0] == 'x')
1568 rps->error_handler
1569 (_("x ISA extension `%s' must be set with the versions"),
1570 subset);
1571 /* Allow old ISA spec can recognize zicsr and zifencei. */
1572 else if (strcmp (subset, "zicsr") != 0
1573 && strcmp (subset, "zifencei") != 0)
1574 rps->error_handler
1575 (_("cannot find default versions of the ISA extension `%s'"),
1576 subset);
1577 return;
1578 }
1579
1580 riscv_add_subset (rps->subset_list, subset,
1581 major_version, minor_version);
1582 }
1583
1584 /* Release subset list. */
1585
1586 void
1587 riscv_release_subset_list (riscv_subset_list_t *subset_list)
1588 {
1589 while (subset_list->head != NULL)
1590 {
1591 riscv_subset_t *next = subset_list->head->next;
1592 free ((void *)subset_list->head->name);
1593 free (subset_list->head);
1594 subset_list->head = next;
1595 }
1596
1597 subset_list->tail = NULL;
1598
1599 if (subset_list->arch_str != NULL)
1600 {
1601 free ((void*) subset_list->arch_str);
1602 subset_list->arch_str = NULL;
1603 }
1604 }
1605
1606 /* Parsing extension version.
1607
1608 Return Value:
1609 Points to the end of version
1610
1611 Arguments:
1612 `p`: Curent parsing position.
1613 `major_version`: Parsed major version.
1614 `minor_version`: Parsed minor version. */
1615
1616 static const char *
1617 riscv_parsing_subset_version (const char *p,
1618 int *major_version,
1619 int *minor_version)
1620 {
1621 bool major_p = true;
1622 int version = 0;
1623 char np;
1624
1625 *major_version = 0;
1626 *minor_version = 0;
1627 for (; *p; ++p)
1628 {
1629 if (*p == 'p')
1630 {
1631 np = *(p + 1);
1632
1633 /* Might be beginning of `p` extension. */
1634 if (!ISDIGIT (np))
1635 break;
1636
1637 *major_version = version;
1638 major_p = false;
1639 version = 0;
1640 }
1641 else if (ISDIGIT (*p))
1642 version = (version * 10) + (*p - '0');
1643 else
1644 break;
1645 }
1646
1647 if (major_p)
1648 *major_version = version;
1649 else
1650 *minor_version = version;
1651
1652 /* We can not find any version in string. */
1653 if (*major_version == 0 && *minor_version == 0)
1654 {
1655 *major_version = RISCV_UNKNOWN_VERSION;
1656 *minor_version = RISCV_UNKNOWN_VERSION;
1657 }
1658
1659 return p;
1660 }
1661
1662 /* Parsing function for both standard and prefixed extensions.
1663
1664 Return Value:
1665 Points to the end of extensions.
1666
1667 Arguments:
1668 `rps`: Hooks and status for parsing extensions.
1669 `arch`: Full ISA string.
1670 `p`: Curent parsing position. */
1671
1672 static const char *
1673 riscv_parse_extensions (riscv_parse_subset_t *rps,
1674 const char *arch,
1675 const char *p)
1676 {
1677 /* First letter must start with i, e or g. */
1678 if (*p != 'e' && *p != 'i' && *p != 'g')
1679 {
1680 rps->error_handler
1681 (_("%s: first ISA extension must be `e', `i' or `g'"),
1682 arch);
1683 return NULL;
1684 }
1685
1686 while (*p != '\0')
1687 {
1688 if (*p == '_')
1689 {
1690 p++;
1691 continue;
1692 }
1693
1694 char *subset = xstrdup (p);
1695 char *q = subset; /* Start of version. */
1696 const char *end_of_version;
1697 bool implicit = false;
1698
1699 enum riscv_prefix_ext_class class = riscv_get_prefix_class (p);
1700 if (class == RV_ISA_CLASS_SINGLE)
1701 {
1702 if (riscv_ext_order[(*subset - 'a')] == 0)
1703 {
1704 rps->error_handler
1705 (_("%s: unknown standard ISA extension or prefix class `%c'"),
1706 arch, *subset);
1707 free (subset);
1708 return NULL;
1709 }
1710 q++;
1711 }
1712 else
1713 {
1714 /* Extract the whole prefixed extension by '_'. */
1715 while (*++q != '\0' && *q != '_')
1716 ;
1717 /* Look forward to the first letter which is not <major>p<minor>. */
1718 bool find_any_version = false;
1719 bool find_minor_version = false;
1720 while (1)
1721 {
1722 q--;
1723 if (ISDIGIT (*q))
1724 find_any_version = true;
1725 else if (find_any_version
1726 && !find_minor_version
1727 && *q == 'p'
1728 && ISDIGIT (*(q - 1)))
1729 find_minor_version = true;
1730 else
1731 break;
1732 }
1733 q++;
1734
1735 /* Check if the end of extension is 'p' or not. If yes, then
1736 the second letter from the end cannot be number. */
1737 if (*(q - 1) == 'p' && ISDIGIT (*(q - 2)))
1738 {
1739 *q = '\0';
1740 rps->error_handler
1741 (_("%s: invalid prefixed ISA extension `%s' ends with <number>p"),
1742 arch, subset);
1743 free (subset);
1744 return NULL;
1745 }
1746 }
1747
1748 int major_version = RISCV_UNKNOWN_VERSION;
1749 int minor_version = RISCV_UNKNOWN_VERSION;
1750 end_of_version =
1751 riscv_parsing_subset_version (q, &major_version, &minor_version);
1752 *q = '\0';
1753 if (end_of_version == NULL)
1754 {
1755 free (subset);
1756 return NULL;
1757 }
1758
1759 /* Check if the prefixed extension name is well-formed. */
1760 if (class != RV_ISA_CLASS_SINGLE
1761 && rps->check_unknown_prefixed_ext
1762 && !riscv_recognized_prefixed_ext (subset))
1763 {
1764 rps->error_handler
1765 (_("%s: unknown prefixed ISA extension `%s'"),
1766 arch, subset);
1767 free (subset);
1768 return NULL;
1769 }
1770
1771 /* Added g as an implicit extension. */
1772 if (class == RV_ISA_CLASS_SINGLE
1773 && strcmp (subset, "g") == 0)
1774 {
1775 implicit = true;
1776 major_version = RISCV_UNKNOWN_VERSION;
1777 minor_version = RISCV_UNKNOWN_VERSION;
1778 }
1779 riscv_parse_add_subset (rps, subset,
1780 major_version,
1781 minor_version, implicit);
1782 p += end_of_version - subset;
1783 free (subset);
1784
1785 if (class != RV_ISA_CLASS_SINGLE
1786 && *p != '\0' && *p != '_')
1787 {
1788 rps->error_handler
1789 (_("%s: prefixed ISA extension must separate with _"),
1790 arch);
1791 return NULL;
1792 }
1793 }
1794
1795 return p;
1796 }
1797
1798 /* Add the implicit extensions. */
1799
1800 static void
1801 riscv_parse_add_implicit_subsets (riscv_parse_subset_t *rps)
1802 {
1803 struct riscv_implicit_subset *t = riscv_implicit_subsets;
1804 for (; t->subset_name; t++)
1805 {
1806 riscv_subset_t *subset = NULL;
1807 if (riscv_lookup_subset (rps->subset_list, t->subset_name, &subset)
1808 && t->check_func (t->implicit_name, subset))
1809 riscv_parse_add_subset (rps, t->implicit_name,
1810 RISCV_UNKNOWN_VERSION,
1811 RISCV_UNKNOWN_VERSION, true);
1812 }
1813 }
1814
1815 /* Check extensions conflicts. */
1816
1817 static bool
1818 riscv_parse_check_conflicts (riscv_parse_subset_t *rps)
1819 {
1820 riscv_subset_t *subset = NULL;
1821 int xlen = *rps->xlen;
1822 bool no_conflict = true;
1823
1824 if (riscv_lookup_subset (rps->subset_list, "e", &subset)
1825 && xlen > 32)
1826 {
1827 rps->error_handler
1828 (_("rv%d does not support the `e' extension"), xlen);
1829 no_conflict = false;
1830 }
1831 if (riscv_lookup_subset (rps->subset_list, "q", &subset)
1832 && (subset->major_version < 2 || (subset->major_version == 2
1833 && subset->minor_version < 2))
1834 && xlen < 64)
1835 {
1836 rps->error_handler (_("rv%d does not support the `q' extension"), xlen);
1837 no_conflict = false;
1838 }
1839 if (riscv_lookup_subset (rps->subset_list, "zfinx", &subset)
1840 && riscv_lookup_subset (rps->subset_list, "f", &subset))
1841 {
1842 rps->error_handler
1843 (_("`zfinx' is conflict with the `f/d/q/zfh/zfhmin' extension"));
1844 no_conflict = false;
1845 }
1846
1847 bool support_zve = false;
1848 bool support_zvl = false;
1849 riscv_subset_t *s = rps->subset_list->head;
1850 for (; s != NULL; s = s->next)
1851 {
1852 if (!support_zve
1853 && strncmp (s->name, "zve", 3) == 0)
1854 support_zve = true;
1855 if (!support_zvl
1856 && strncmp (s->name, "zvl", 3) == 0)
1857 support_zvl = true;
1858 if (support_zve && support_zvl)
1859 break;
1860 }
1861 if (support_zvl && !support_zve)
1862 {
1863 rps->error_handler
1864 (_("zvl*b extensions need to enable either `v' or `zve' extension"));
1865 no_conflict = false;
1866 }
1867
1868 return no_conflict;
1869 }
1870
1871 /* Set the default subset list according to the default_enable field
1872 of riscv_supported_*ext tables. */
1873
1874 static void
1875 riscv_set_default_arch (riscv_parse_subset_t *rps)
1876 {
1877 unsigned long enable = EXT_DEFAULT;
1878 int i, j;
1879 for (i = 0; riscv_all_supported_ext[i] != NULL; i++)
1880 {
1881 const struct riscv_supported_ext *table = riscv_all_supported_ext[i];
1882 for (j = 0; table[j].name != NULL; j++)
1883 {
1884 bool implicit = false;
1885 if (strcmp (table[j].name, "g") == 0)
1886 implicit = true;
1887 if (table[j].default_enable & enable)
1888 riscv_parse_add_subset (rps, table[j].name,
1889 RISCV_UNKNOWN_VERSION,
1890 RISCV_UNKNOWN_VERSION, implicit);
1891 }
1892 }
1893 }
1894
1895 /* Function for parsing ISA string.
1896
1897 Return Value:
1898 Return TRUE on success.
1899
1900 Arguments:
1901 `rps`: Hooks and status for parsing extensions.
1902 `arch`: Full ISA string. */
1903
1904 bool
1905 riscv_parse_subset (riscv_parse_subset_t *rps,
1906 const char *arch)
1907 {
1908 const char *p;
1909
1910 /* Init the riscv_ext_order array to compare the order of extensions
1911 quickly. */
1912 riscv_init_ext_order ();
1913
1914 if (arch == NULL)
1915 {
1916 riscv_set_default_arch (rps);
1917 riscv_parse_add_implicit_subsets (rps);
1918 return riscv_parse_check_conflicts (rps);
1919 }
1920
1921 for (p = arch; *p != '\0'; p++)
1922 {
1923 if (ISUPPER (*p))
1924 {
1925 rps->error_handler
1926 (_("%s: ISA string cannot contain uppercase letters"),
1927 arch);
1928 return false;
1929 }
1930 }
1931
1932 p = arch;
1933 if (startswith (p, "rv32"))
1934 {
1935 *rps->xlen = 32;
1936 p += 4;
1937 }
1938 else if (startswith (p, "rv64"))
1939 {
1940 *rps->xlen = 64;
1941 p += 4;
1942 }
1943 else
1944 {
1945 /* ISA string shouldn't be NULL or empty here. For linker,
1946 it might be empty when we failed to merge the ISA string
1947 in the riscv_merge_attributes. For assembler, we might
1948 give an empty string by .attribute arch, "" or -march=.
1949 However, We have already issued the correct error message
1950 in another side, so do not issue this error when the ISA
1951 string is empty. */
1952 if (strlen (arch))
1953 rps->error_handler (
1954 _("%s: ISA string must begin with rv32 or rv64"),
1955 arch);
1956 return false;
1957 }
1958
1959 /* Parse single standard and prefixed extensions. */
1960 if (riscv_parse_extensions (rps, arch, p) == NULL)
1961 return false;
1962
1963 /* Finally add implicit extensions according to the current
1964 extensions. */
1965 riscv_parse_add_implicit_subsets (rps);
1966
1967 /* Check the conflicts. */
1968 return riscv_parse_check_conflicts (rps);
1969 }
1970
1971 /* Return the number of digits for the input. */
1972
1973 size_t
1974 riscv_estimate_digit (unsigned num)
1975 {
1976 size_t digit = 0;
1977 if (num == 0)
1978 return 1;
1979
1980 for (digit = 0; num ; num /= 10)
1981 digit++;
1982
1983 return digit;
1984 }
1985
1986 /* Auxiliary function to estimate string length of subset list. */
1987
1988 static size_t
1989 riscv_estimate_arch_strlen1 (const riscv_subset_t *subset)
1990 {
1991 if (subset == NULL)
1992 return 6; /* For rv32/rv64/rv128 and string terminator. */
1993
1994 return riscv_estimate_arch_strlen1 (subset->next)
1995 + strlen (subset->name)
1996 + riscv_estimate_digit (subset->major_version)
1997 + 1 /* For version seperator 'p'. */
1998 + riscv_estimate_digit (subset->minor_version)
1999 + 1 /* For underscore. */;
2000 }
2001
2002 /* Estimate the string length of this subset list. */
2003
2004 static size_t
2005 riscv_estimate_arch_strlen (const riscv_subset_list_t *subset_list)
2006 {
2007 return riscv_estimate_arch_strlen1 (subset_list->head);
2008 }
2009
2010 /* Auxiliary function to convert subset info to string. */
2011
2012 static void
2013 riscv_arch_str1 (riscv_subset_t *subset,
2014 char *attr_str, char *buf, size_t bufsz)
2015 {
2016 const char *underline = "_";
2017 riscv_subset_t *subset_t = subset;
2018
2019 if (subset_t == NULL)
2020 return;
2021
2022 /* No underline between rvXX and i/e. */
2023 if ((strcasecmp (subset_t->name, "i") == 0)
2024 || (strcasecmp (subset_t->name, "e") == 0))
2025 underline = "";
2026
2027 snprintf (buf, bufsz, "%s%s%dp%d",
2028 underline,
2029 subset_t->name,
2030 subset_t->major_version,
2031 subset_t->minor_version);
2032
2033 strncat (attr_str, buf, bufsz);
2034
2035 /* Skip 'i' extension after 'e', or skip extensions which
2036 versions are unknown. */
2037 while (subset_t->next
2038 && ((strcmp (subset_t->name, "e") == 0
2039 && strcmp (subset_t->next->name, "i") == 0)
2040 || subset_t->next->major_version == RISCV_UNKNOWN_VERSION
2041 || subset_t->next->minor_version == RISCV_UNKNOWN_VERSION))
2042 subset_t = subset_t->next;
2043
2044 riscv_arch_str1 (subset_t->next, attr_str, buf, bufsz);
2045 }
2046
2047 /* Convert subset information into string with explicit versions. */
2048
2049 char *
2050 riscv_arch_str (unsigned xlen, const riscv_subset_list_t *subset)
2051 {
2052 size_t arch_str_len = riscv_estimate_arch_strlen (subset);
2053 char *attr_str = xmalloc (arch_str_len);
2054 char *buf = xmalloc (arch_str_len);
2055
2056 snprintf (attr_str, arch_str_len, "rv%u", xlen);
2057
2058 riscv_arch_str1 (subset->head, attr_str, buf, arch_str_len);
2059 free (buf);
2060
2061 return attr_str;
2062 }
2063
2064 /* Copy the subset in the subset list. */
2065
2066 static struct riscv_subset_t *
2067 riscv_copy_subset (riscv_subset_list_t *subset_list,
2068 riscv_subset_t *subset)
2069 {
2070 if (subset == NULL)
2071 return NULL;
2072
2073 riscv_subset_t *new = xmalloc (sizeof *new);
2074 new->name = xstrdup (subset->name);
2075 new->major_version = subset->major_version;
2076 new->minor_version = subset->minor_version;
2077 new->next = riscv_copy_subset (subset_list, subset->next);
2078
2079 if (subset->next == NULL)
2080 subset_list->tail = new;
2081
2082 return new;
2083 }
2084
2085 /* Copy the subset list. */
2086
2087 riscv_subset_list_t *
2088 riscv_copy_subset_list (riscv_subset_list_t *subset_list)
2089 {
2090 riscv_subset_list_t *new = xmalloc (sizeof *new);
2091 new->head = riscv_copy_subset (new, subset_list->head);
2092 new->arch_str = strdup (subset_list->arch_str);
2093 return new;
2094 }
2095
2096 /* Remove the SUBSET from the subset list. */
2097
2098 static void
2099 riscv_remove_subset (riscv_subset_list_t *subset_list,
2100 const char *subset)
2101 {
2102 riscv_subset_t *current = subset_list->head;
2103 riscv_subset_t *pre = NULL;
2104 for (; current != NULL; pre = current, current = current->next)
2105 {
2106 if (strcmp (current->name, subset) == 0)
2107 {
2108 if (pre == NULL)
2109 subset_list->head = current->next;
2110 else
2111 pre->next = current->next;
2112 if (current->next == NULL)
2113 subset_list->tail = pre;
2114 free ((void *) current->name);
2115 free (current);
2116 break;
2117 }
2118 }
2119 }
2120
2121 /* Add/Remove an extension to/from the subset list. This is used for
2122 the .option rvc or norvc, and .option arch directives. */
2123
2124 bool
2125 riscv_update_subset (riscv_parse_subset_t *rps,
2126 const char *str)
2127 {
2128 const char *p = str;
2129
2130 do
2131 {
2132 int major_version = RISCV_UNKNOWN_VERSION;
2133 int minor_version = RISCV_UNKNOWN_VERSION;
2134
2135 bool removed = false;
2136 switch (*p)
2137 {
2138 case '+': removed = false; break;
2139 case '-': removed = true; break;
2140 default:
2141 riscv_release_subset_list (rps->subset_list);
2142 return riscv_parse_subset (rps, p);
2143 }
2144 ++p;
2145
2146 char *subset = xstrdup (p);
2147 char *q = subset;
2148 const char *end_of_version;
2149 /* Extract the whole prefixed extension by ','. */
2150 while (*q != '\0' && *q != ',')
2151 q++;
2152
2153 /* Look forward to the first letter which is not <major>p<minor>. */
2154 bool find_any_version = false;
2155 bool find_minor_version = false;
2156 size_t len = q - subset;
2157 size_t i;
2158 for (i = len; i > 0; i--)
2159 {
2160 q--;
2161 if (ISDIGIT (*q))
2162 find_any_version = true;
2163 else if (find_any_version
2164 && !find_minor_version
2165 && *q == 'p'
2166 && ISDIGIT (*(q - 1)))
2167 find_minor_version = true;
2168 else
2169 break;
2170 }
2171 if (len > 0)
2172 q++;
2173
2174 /* Check if the end of extension is 'p' or not. If yes, then
2175 the second letter from the end cannot be number. */
2176 if (len > 1 && *(q - 1) == 'p' && ISDIGIT (*(q - 2)))
2177 {
2178 *q = '\0';
2179 rps->error_handler
2180 (_("invalid ISA extension ends with <number>p "
2181 "in .option arch `%s'"), str);
2182 free (subset);
2183 return false;
2184 }
2185
2186 end_of_version =
2187 riscv_parsing_subset_version (q, &major_version, &minor_version);
2188 *q = '\0';
2189 if (end_of_version == NULL)
2190 {
2191 free (subset);
2192 return false;
2193 }
2194
2195 if (strlen (subset) == 0
2196 || (strlen (subset) == 1
2197 && riscv_ext_order[(*subset - 'a')] == 0)
2198 || (strlen (subset) > 1
2199 && rps->check_unknown_prefixed_ext
2200 && !riscv_recognized_prefixed_ext (subset)))
2201 {
2202 rps->error_handler
2203 (_("unknown ISA extension `%s' in .option arch `%s'"),
2204 subset, str);
2205 free (subset);
2206 return false;
2207 }
2208
2209 if (strcmp (subset, "i") == 0
2210 || strcmp (subset, "e") == 0
2211 || strcmp (subset, "g") == 0)
2212 {
2213 rps->error_handler
2214 (_("cannot + or - base extension `%s' in .option "
2215 "arch `%s'"), subset, str);
2216 free (subset);
2217 return false;
2218 }
2219
2220 if (removed)
2221 riscv_remove_subset (rps->subset_list, subset);
2222 else
2223 riscv_parse_add_subset (rps, subset, major_version, minor_version, true);
2224 p += end_of_version - subset;
2225 free (subset);
2226 }
2227 while (*p++ == ',');
2228
2229 riscv_parse_add_implicit_subsets (rps);
2230 return riscv_parse_check_conflicts (rps);
2231 }
2232
2233 /* Check if the FEATURE subset is supported or not in the subset list.
2234 Return true if it is supported; Otherwise, return false. */
2235
2236 bool
2237 riscv_subset_supports (riscv_parse_subset_t *rps,
2238 const char *feature)
2239 {
2240 struct riscv_subset_t *subset;
2241 return riscv_lookup_subset (rps->subset_list, feature, &subset);
2242 }
2243
2244 /* Each instuction is belonged to an instruction class INSN_CLASS_*.
2245 Call riscv_subset_supports to make sure if the instuction is valid. */
2246
2247 bool
2248 riscv_multi_subset_supports (riscv_parse_subset_t *rps,
2249 enum riscv_insn_class insn_class)
2250 {
2251 switch (insn_class)
2252 {
2253 case INSN_CLASS_I:
2254 return riscv_subset_supports (rps, "i");
2255 case INSN_CLASS_ZICBOM:
2256 return riscv_subset_supports (rps, "zicbom");
2257 case INSN_CLASS_ZICBOP:
2258 return riscv_subset_supports (rps, "zicbop");
2259 case INSN_CLASS_ZICBOZ:
2260 return riscv_subset_supports (rps, "zicboz");
2261 case INSN_CLASS_ZICSR:
2262 return riscv_subset_supports (rps, "zicsr");
2263 case INSN_CLASS_ZIFENCEI:
2264 return riscv_subset_supports (rps, "zifencei");
2265 case INSN_CLASS_ZIHINTPAUSE:
2266 return riscv_subset_supports (rps, "zihintpause");
2267 case INSN_CLASS_M:
2268 return riscv_subset_supports (rps, "m");
2269 case INSN_CLASS_ZMMUL:
2270 return riscv_subset_supports (rps, "zmmul");
2271 case INSN_CLASS_A:
2272 return riscv_subset_supports (rps, "a");
2273 case INSN_CLASS_ZAWRS:
2274 return riscv_subset_supports (rps, "zawrs");
2275 case INSN_CLASS_F:
2276 return riscv_subset_supports (rps, "f");
2277 case INSN_CLASS_D:
2278 return riscv_subset_supports (rps, "d");
2279 case INSN_CLASS_Q:
2280 return riscv_subset_supports (rps, "q");
2281 case INSN_CLASS_C:
2282 return riscv_subset_supports (rps, "c");
2283 case INSN_CLASS_F_AND_C:
2284 return (riscv_subset_supports (rps, "f")
2285 && riscv_subset_supports (rps, "c"));
2286 case INSN_CLASS_D_AND_C:
2287 return (riscv_subset_supports (rps, "d")
2288 && riscv_subset_supports (rps, "c"));
2289 case INSN_CLASS_F_INX:
2290 return (riscv_subset_supports (rps, "f")
2291 || riscv_subset_supports (rps, "zfinx"));
2292 case INSN_CLASS_D_INX:
2293 return (riscv_subset_supports (rps, "d")
2294 || riscv_subset_supports (rps, "zdinx"));
2295 case INSN_CLASS_Q_INX:
2296 return (riscv_subset_supports (rps, "q")
2297 || riscv_subset_supports (rps, "zqinx"));
2298 case INSN_CLASS_ZFH_INX:
2299 return (riscv_subset_supports (rps, "zfh")
2300 || riscv_subset_supports (rps, "zhinx"));
2301 case INSN_CLASS_ZFHMIN:
2302 return riscv_subset_supports (rps, "zfhmin");
2303 case INSN_CLASS_ZFHMIN_INX:
2304 return (riscv_subset_supports (rps, "zfhmin")
2305 || riscv_subset_supports (rps, "zhinxmin"));
2306 case INSN_CLASS_ZFHMIN_AND_D_INX:
2307 return ((riscv_subset_supports (rps, "zfhmin")
2308 && riscv_subset_supports (rps, "d"))
2309 || (riscv_subset_supports (rps, "zhinxmin")
2310 && riscv_subset_supports (rps, "zdinx")));
2311 case INSN_CLASS_ZFHMIN_AND_Q_INX:
2312 return ((riscv_subset_supports (rps, "zfhmin")
2313 && riscv_subset_supports (rps, "q"))
2314 || (riscv_subset_supports (rps, "zhinxmin")
2315 && riscv_subset_supports (rps, "zqinx")));
2316 case INSN_CLASS_ZBA:
2317 return riscv_subset_supports (rps, "zba");
2318 case INSN_CLASS_ZBB:
2319 return riscv_subset_supports (rps, "zbb");
2320 case INSN_CLASS_ZBC:
2321 return riscv_subset_supports (rps, "zbc");
2322 case INSN_CLASS_ZBS:
2323 return riscv_subset_supports (rps, "zbs");
2324 case INSN_CLASS_ZBKB:
2325 return riscv_subset_supports (rps, "zbkb");
2326 case INSN_CLASS_ZBKC:
2327 return riscv_subset_supports (rps, "zbkc");
2328 case INSN_CLASS_ZBKX:
2329 return riscv_subset_supports (rps, "zbkx");
2330 case INSN_CLASS_ZBB_OR_ZBKB:
2331 return (riscv_subset_supports (rps, "zbb")
2332 || riscv_subset_supports (rps, "zbkb"));
2333 case INSN_CLASS_ZBC_OR_ZBKC:
2334 return (riscv_subset_supports (rps, "zbc")
2335 || riscv_subset_supports (rps, "zbkc"));
2336 case INSN_CLASS_ZKND:
2337 return riscv_subset_supports (rps, "zknd");
2338 case INSN_CLASS_ZKNE:
2339 return riscv_subset_supports (rps, "zkne");
2340 case INSN_CLASS_ZKNH:
2341 return riscv_subset_supports (rps, "zknh");
2342 case INSN_CLASS_ZKND_OR_ZKNE:
2343 return (riscv_subset_supports (rps, "zknd")
2344 || riscv_subset_supports (rps, "zkne"));
2345 case INSN_CLASS_ZKSED:
2346 return riscv_subset_supports (rps, "zksed");
2347 case INSN_CLASS_ZKSH:
2348 return riscv_subset_supports (rps, "zksh");
2349 case INSN_CLASS_V:
2350 return (riscv_subset_supports (rps, "v")
2351 || riscv_subset_supports (rps, "zve64x")
2352 || riscv_subset_supports (rps, "zve32x"));
2353 case INSN_CLASS_ZVEF:
2354 return (riscv_subset_supports (rps, "v")
2355 || riscv_subset_supports (rps, "zve64d")
2356 || riscv_subset_supports (rps, "zve64f")
2357 || riscv_subset_supports (rps, "zve32f"));
2358 case INSN_CLASS_SVINVAL:
2359 return riscv_subset_supports (rps, "svinval");
2360 case INSN_CLASS_H:
2361 return riscv_subset_supports (rps, "h");
2362 case INSN_CLASS_XTHEADBA:
2363 return riscv_subset_supports (rps, "xtheadba");
2364 case INSN_CLASS_XTHEADBB:
2365 return riscv_subset_supports (rps, "xtheadbb");
2366 case INSN_CLASS_XTHEADBS:
2367 return riscv_subset_supports (rps, "xtheadbs");
2368 case INSN_CLASS_XTHEADCMO:
2369 return riscv_subset_supports (rps, "xtheadcmo");
2370 case INSN_CLASS_XTHEADCONDMOV:
2371 return riscv_subset_supports (rps, "xtheadcondmov");
2372 case INSN_CLASS_XTHEADFMEMIDX:
2373 return riscv_subset_supports (rps, "xtheadfmemidx");
2374 case INSN_CLASS_XTHEADFMV:
2375 return riscv_subset_supports (rps, "xtheadfmv");
2376 case INSN_CLASS_XTHEADINT:
2377 return riscv_subset_supports (rps, "xtheadint");
2378 case INSN_CLASS_XTHEADMAC:
2379 return riscv_subset_supports (rps, "xtheadmac");
2380 case INSN_CLASS_XTHEADMEMIDX:
2381 return riscv_subset_supports (rps, "xtheadmemidx");
2382 case INSN_CLASS_XTHEADMEMPAIR:
2383 return riscv_subset_supports (rps, "xtheadmempair");
2384 case INSN_CLASS_XTHEADSYNC:
2385 return riscv_subset_supports (rps, "xtheadsync");
2386 default:
2387 rps->error_handler
2388 (_("internal: unreachable INSN_CLASS_*"));
2389 return false;
2390 }
2391 }
2392
2393 /* Each instuction is belonged to an instruction class INSN_CLASS_*.
2394 Call riscv_subset_supports_ext to determine the missing extension. */
2395
2396 const char *
2397 riscv_multi_subset_supports_ext (riscv_parse_subset_t *rps,
2398 enum riscv_insn_class insn_class)
2399 {
2400 switch (insn_class)
2401 {
2402 case INSN_CLASS_I:
2403 return "i";
2404 case INSN_CLASS_ZICBOM:
2405 return "zicbom";
2406 case INSN_CLASS_ZICBOP:
2407 return "zicbop";
2408 case INSN_CLASS_ZICBOZ:
2409 return "zicboz";
2410 case INSN_CLASS_ZICSR:
2411 return "zicsr";
2412 case INSN_CLASS_ZIFENCEI:
2413 return "zifencei";
2414 case INSN_CLASS_ZIHINTPAUSE:
2415 return "zihintpause";
2416 case INSN_CLASS_M:
2417 return "m";
2418 case INSN_CLASS_ZMMUL:
2419 return _ ("m' or `zmmul");
2420 case INSN_CLASS_A:
2421 return "a";
2422 case INSN_CLASS_ZAWRS:
2423 return "zawrs";
2424 case INSN_CLASS_F:
2425 return "f";
2426 case INSN_CLASS_D:
2427 return "d";
2428 case INSN_CLASS_Q:
2429 return "q";
2430 case INSN_CLASS_C:
2431 return "c";
2432 case INSN_CLASS_F_AND_C:
2433 if (!riscv_subset_supports (rps, "f")
2434 && !riscv_subset_supports (rps, "c"))
2435 return _("f' and `c");
2436 else if (!riscv_subset_supports (rps, "f"))
2437 return "f";
2438 else
2439 return "c";
2440 case INSN_CLASS_D_AND_C:
2441 if (!riscv_subset_supports (rps, "d")
2442 && !riscv_subset_supports (rps, "c"))
2443 return _("d' and `c");
2444 else if (!riscv_subset_supports (rps, "d"))
2445 return "d";
2446 else
2447 return "c";
2448 case INSN_CLASS_F_INX:
2449 return _("f' or `zfinx");
2450 case INSN_CLASS_D_INX:
2451 return _("d' or `zdinx");
2452 case INSN_CLASS_Q_INX:
2453 return _("q' or `zqinx");
2454 case INSN_CLASS_ZFH_INX:
2455 return _("zfh' or `zhinx");
2456 case INSN_CLASS_ZFHMIN:
2457 return "zfhmin";
2458 case INSN_CLASS_ZFHMIN_INX:
2459 return _("zfhmin' or `zhinxmin");
2460 case INSN_CLASS_ZFHMIN_AND_D_INX:
2461 if (riscv_subset_supports (rps, "zfhmin"))
2462 return "d";
2463 else if (riscv_subset_supports (rps, "d"))
2464 return "zfhmin";
2465 else if (riscv_subset_supports (rps, "zhinxmin"))
2466 return "zdinx";
2467 else if (riscv_subset_supports (rps, "zdinx"))
2468 return "zhinxmin";
2469 else
2470 return _("zfhmin' and `d', or `zhinxmin' and `zdinx");
2471 case INSN_CLASS_ZFHMIN_AND_Q_INX:
2472 if (riscv_subset_supports (rps, "zfhmin"))
2473 return "q";
2474 else if (riscv_subset_supports (rps, "q"))
2475 return "zfhmin";
2476 else if (riscv_subset_supports (rps, "zhinxmin"))
2477 return "zqinx";
2478 else if (riscv_subset_supports (rps, "zqinx"))
2479 return "zhinxmin";
2480 else
2481 return _("zfhmin' and `q', or `zhinxmin' and `zqinx");
2482 case INSN_CLASS_ZBA:
2483 return "zba";
2484 case INSN_CLASS_ZBB:
2485 return "zbb";
2486 case INSN_CLASS_ZBC:
2487 return "zbc";
2488 case INSN_CLASS_ZBS:
2489 return "zbs";
2490 case INSN_CLASS_ZBKB:
2491 return "zbkb";
2492 case INSN_CLASS_ZBKC:
2493 return "zbkc";
2494 case INSN_CLASS_ZBKX:
2495 return "zbkx";
2496 case INSN_CLASS_ZBB_OR_ZBKB:
2497 return _("zbb' or `zbkb");
2498 case INSN_CLASS_ZBC_OR_ZBKC:
2499 return _("zbc' or `zbkc");
2500 case INSN_CLASS_ZKND:
2501 return "zknd";
2502 case INSN_CLASS_ZKNE:
2503 return "zkne";
2504 case INSN_CLASS_ZKNH:
2505 return "zknh";
2506 case INSN_CLASS_ZKND_OR_ZKNE:
2507 return _("zknd' or `zkne");
2508 case INSN_CLASS_ZKSED:
2509 return "zksed";
2510 case INSN_CLASS_ZKSH:
2511 return "zksh";
2512 case INSN_CLASS_V:
2513 return _("v' or `zve64x' or `zve32x");
2514 case INSN_CLASS_ZVEF:
2515 return _("v' or `zve64d' or `zve64f' or `zve32f");
2516 case INSN_CLASS_SVINVAL:
2517 return "svinval";
2518 case INSN_CLASS_H:
2519 return _("h");
2520 case INSN_CLASS_XTHEADBA:
2521 return "xtheadba";
2522 case INSN_CLASS_XTHEADBB:
2523 return "xtheadbb";
2524 case INSN_CLASS_XTHEADBS:
2525 return "xtheadbs";
2526 case INSN_CLASS_XTHEADCMO:
2527 return "xtheadcmo";
2528 case INSN_CLASS_XTHEADCONDMOV:
2529 return "xtheadcondmov";
2530 case INSN_CLASS_XTHEADFMEMIDX:
2531 return "xtheadfmemidx";
2532 case INSN_CLASS_XTHEADFMV:
2533 return "xtheadfmv";
2534 case INSN_CLASS_XTHEADINT:
2535 return "xtheadint";
2536 case INSN_CLASS_XTHEADMAC:
2537 return "xtheadmac";
2538 case INSN_CLASS_XTHEADMEMIDX:
2539 return "xtheadmemidx";
2540 case INSN_CLASS_XTHEADMEMPAIR:
2541 return "xtheadmempair";
2542 case INSN_CLASS_XTHEADSYNC:
2543 return "xtheadsync";
2544 default:
2545 rps->error_handler
2546 (_("internal: unreachable INSN_CLASS_*"));
2547 return NULL;
2548 }
2549 }
A mirror of the official binutils-gdb repository