Commit | Line | Data |
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e23eba97 | 1 | /* RISC-V-specific support for ELF. |
250d07de | 2 | Copyright (C) 2011-2021 Free Software Foundation, Inc. |
e23eba97 NC |
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" | |
3d73d29e | 28 | #include "opcode/riscv.h" |
e23eba97 NC |
29 | #include "libiberty.h" |
30 | #include "elfxx-riscv.h" | |
1080bf78 | 31 | #include "safe-ctype.h" |
3d73d29e | 32 | #include "cpu-riscv.h" |
e23eba97 NC |
33 | |
34 | #define MINUS_ONE ((bfd_vma)0 - 1) | |
35 | ||
57593436 KLC |
36 | /* Special handler for ADD/SUB relocations that allows them to be filled out |
37 | both in the pre-linked and post-linked file. This is necessary to make | |
38 | pre-linked debug info work, as due to linker relaxations we need to emit | |
39 | relocations for the debug info. */ | |
40 | static bfd_reloc_status_type riscv_elf_add_sub_reloc | |
41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
42 | ||
e23eba97 NC |
43 | /* The relocation table used for SHT_RELA sections. */ |
44 | ||
45 | static reloc_howto_type howto_table[] = | |
46 | { | |
47 | /* No relocation. */ | |
48 | HOWTO (R_RISCV_NONE, /* type */ | |
49 | 0, /* rightshift */ | |
50 | 3, /* size */ | |
51 | 0, /* bitsize */ | |
52 | FALSE, /* pc_relative */ | |
53 | 0, /* bitpos */ | |
54 | complain_overflow_dont, /* complain_on_overflow */ | |
55 | bfd_elf_generic_reloc, /* special_function */ | |
56 | "R_RISCV_NONE", /* name */ | |
57 | FALSE, /* partial_inplace */ | |
58 | 0, /* src_mask */ | |
59 | 0, /* dst_mask */ | |
60 | FALSE), /* pcrel_offset */ | |
61 | ||
62 | /* 32 bit relocation. */ | |
63 | HOWTO (R_RISCV_32, /* type */ | |
64 | 0, /* rightshift */ | |
65 | 2, /* size */ | |
66 | 32, /* bitsize */ | |
67 | FALSE, /* pc_relative */ | |
68 | 0, /* bitpos */ | |
69 | complain_overflow_dont, /* complain_on_overflow */ | |
70 | bfd_elf_generic_reloc, /* special_function */ | |
71 | "R_RISCV_32", /* name */ | |
72 | FALSE, /* partial_inplace */ | |
73 | 0, /* src_mask */ | |
b1b11e92 | 74 | 0xffffffff, /* dst_mask */ |
e23eba97 NC |
75 | FALSE), /* pcrel_offset */ |
76 | ||
77 | /* 64 bit relocation. */ | |
78 | HOWTO (R_RISCV_64, /* type */ | |
79 | 0, /* rightshift */ | |
80 | 4, /* size */ | |
81 | 64, /* bitsize */ | |
82 | FALSE, /* pc_relative */ | |
83 | 0, /* bitpos */ | |
84 | complain_overflow_dont, /* complain_on_overflow */ | |
85 | bfd_elf_generic_reloc, /* special_function */ | |
86 | "R_RISCV_64", /* name */ | |
87 | FALSE, /* partial_inplace */ | |
88 | 0, /* src_mask */ | |
89 | MINUS_ONE, /* dst_mask */ | |
90 | FALSE), /* pcrel_offset */ | |
91 | ||
92 | /* Relocation against a local symbol in a shared object. */ | |
93 | HOWTO (R_RISCV_RELATIVE, /* type */ | |
94 | 0, /* rightshift */ | |
95 | 2, /* size */ | |
96 | 32, /* bitsize */ | |
97 | FALSE, /* pc_relative */ | |
98 | 0, /* bitpos */ | |
99 | complain_overflow_dont, /* complain_on_overflow */ | |
100 | bfd_elf_generic_reloc, /* special_function */ | |
101 | "R_RISCV_RELATIVE", /* name */ | |
102 | FALSE, /* partial_inplace */ | |
103 | 0, /* src_mask */ | |
b1b11e92 | 104 | 0xffffffff, /* dst_mask */ |
e23eba97 NC |
105 | FALSE), /* pcrel_offset */ |
106 | ||
107 | HOWTO (R_RISCV_COPY, /* type */ | |
108 | 0, /* rightshift */ | |
109 | 0, /* this one is variable size */ | |
110 | 0, /* bitsize */ | |
111 | FALSE, /* pc_relative */ | |
112 | 0, /* bitpos */ | |
113 | complain_overflow_bitfield, /* complain_on_overflow */ | |
114 | bfd_elf_generic_reloc, /* special_function */ | |
115 | "R_RISCV_COPY", /* name */ | |
116 | FALSE, /* partial_inplace */ | |
07d6d2b8 AM |
117 | 0, /* src_mask */ |
118 | 0, /* dst_mask */ | |
e23eba97 NC |
119 | FALSE), /* pcrel_offset */ |
120 | ||
121 | HOWTO (R_RISCV_JUMP_SLOT, /* type */ | |
122 | 0, /* rightshift */ | |
123 | 4, /* size */ | |
124 | 64, /* bitsize */ | |
125 | FALSE, /* pc_relative */ | |
126 | 0, /* bitpos */ | |
127 | complain_overflow_bitfield, /* complain_on_overflow */ | |
128 | bfd_elf_generic_reloc, /* special_function */ | |
129 | "R_RISCV_JUMP_SLOT", /* name */ | |
130 | FALSE, /* partial_inplace */ | |
07d6d2b8 AM |
131 | 0, /* src_mask */ |
132 | 0, /* dst_mask */ | |
e23eba97 NC |
133 | FALSE), /* pcrel_offset */ |
134 | ||
135 | /* Dynamic TLS relocations. */ | |
136 | HOWTO (R_RISCV_TLS_DTPMOD32, /* type */ | |
137 | 0, /* rightshift */ | |
b1b11e92 | 138 | 2, /* size */ |
e23eba97 NC |
139 | 32, /* bitsize */ |
140 | FALSE, /* pc_relative */ | |
141 | 0, /* bitpos */ | |
142 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 143 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 NC |
144 | "R_RISCV_TLS_DTPMOD32", /* name */ |
145 | FALSE, /* partial_inplace */ | |
1d65abb5 | 146 | 0, /* src_mask */ |
b1b11e92 | 147 | 0xffffffff, /* dst_mask */ |
e23eba97 NC |
148 | FALSE), /* pcrel_offset */ |
149 | ||
150 | HOWTO (R_RISCV_TLS_DTPMOD64, /* type */ | |
151 | 0, /* rightshift */ | |
152 | 4, /* size */ | |
153 | 64, /* bitsize */ | |
154 | FALSE, /* pc_relative */ | |
155 | 0, /* bitpos */ | |
156 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 157 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 NC |
158 | "R_RISCV_TLS_DTPMOD64", /* name */ |
159 | FALSE, /* partial_inplace */ | |
1d65abb5 | 160 | 0, /* src_mask */ |
e23eba97 NC |
161 | MINUS_ONE, /* dst_mask */ |
162 | FALSE), /* pcrel_offset */ | |
163 | ||
164 | HOWTO (R_RISCV_TLS_DTPREL32, /* type */ | |
165 | 0, /* rightshift */ | |
b1b11e92 | 166 | 2, /* size */ |
e23eba97 NC |
167 | 32, /* bitsize */ |
168 | FALSE, /* pc_relative */ | |
169 | 0, /* bitpos */ | |
170 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 171 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 NC |
172 | "R_RISCV_TLS_DTPREL32", /* name */ |
173 | TRUE, /* partial_inplace */ | |
1d65abb5 | 174 | 0, /* src_mask */ |
b1b11e92 | 175 | 0xffffffff, /* dst_mask */ |
e23eba97 NC |
176 | FALSE), /* pcrel_offset */ |
177 | ||
178 | HOWTO (R_RISCV_TLS_DTPREL64, /* type */ | |
179 | 0, /* rightshift */ | |
180 | 4, /* size */ | |
181 | 64, /* bitsize */ | |
182 | FALSE, /* pc_relative */ | |
183 | 0, /* bitpos */ | |
184 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 185 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 NC |
186 | "R_RISCV_TLS_DTPREL64", /* name */ |
187 | TRUE, /* partial_inplace */ | |
1d65abb5 | 188 | 0, /* src_mask */ |
e23eba97 NC |
189 | MINUS_ONE, /* dst_mask */ |
190 | FALSE), /* pcrel_offset */ | |
191 | ||
192 | HOWTO (R_RISCV_TLS_TPREL32, /* type */ | |
193 | 0, /* rightshift */ | |
194 | 2, /* size */ | |
195 | 32, /* bitsize */ | |
196 | FALSE, /* pc_relative */ | |
197 | 0, /* bitpos */ | |
198 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 199 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 NC |
200 | "R_RISCV_TLS_TPREL32", /* name */ |
201 | FALSE, /* partial_inplace */ | |
1d65abb5 | 202 | 0, /* src_mask */ |
b1b11e92 | 203 | 0xffffffff, /* dst_mask */ |
e23eba97 NC |
204 | FALSE), /* pcrel_offset */ |
205 | ||
206 | HOWTO (R_RISCV_TLS_TPREL64, /* type */ | |
207 | 0, /* rightshift */ | |
208 | 4, /* size */ | |
209 | 64, /* bitsize */ | |
210 | FALSE, /* pc_relative */ | |
211 | 0, /* bitpos */ | |
212 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 213 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 NC |
214 | "R_RISCV_TLS_TPREL64", /* name */ |
215 | FALSE, /* partial_inplace */ | |
1d65abb5 | 216 | 0, /* src_mask */ |
e23eba97 NC |
217 | MINUS_ONE, /* dst_mask */ |
218 | FALSE), /* pcrel_offset */ | |
219 | ||
220 | /* Reserved for future relocs that the dynamic linker must understand. */ | |
221 | EMPTY_HOWTO (12), | |
222 | EMPTY_HOWTO (13), | |
223 | EMPTY_HOWTO (14), | |
224 | EMPTY_HOWTO (15), | |
225 | ||
226 | /* 12-bit PC-relative branch offset. */ | |
227 | HOWTO (R_RISCV_BRANCH, /* type */ | |
228 | 0, /* rightshift */ | |
229 | 2, /* size */ | |
230 | 32, /* bitsize */ | |
231 | TRUE, /* pc_relative */ | |
232 | 0, /* bitpos */ | |
233 | complain_overflow_signed, /* complain_on_overflow */ | |
234 | bfd_elf_generic_reloc, /* special_function */ | |
235 | "R_RISCV_BRANCH", /* name */ | |
236 | FALSE, /* partial_inplace */ | |
237 | 0, /* src_mask */ | |
5a9f5403 | 238 | ENCODE_BTYPE_IMM (-1U), /* dst_mask */ |
e23eba97 NC |
239 | TRUE), /* pcrel_offset */ |
240 | ||
241 | /* 20-bit PC-relative jump offset. */ | |
242 | HOWTO (R_RISCV_JAL, /* type */ | |
243 | 0, /* rightshift */ | |
244 | 2, /* size */ | |
245 | 32, /* bitsize */ | |
246 | TRUE, /* pc_relative */ | |
247 | 0, /* bitpos */ | |
248 | complain_overflow_dont, /* complain_on_overflow */ | |
e23eba97 NC |
249 | bfd_elf_generic_reloc, /* special_function */ |
250 | "R_RISCV_JAL", /* name */ | |
251 | FALSE, /* partial_inplace */ | |
252 | 0, /* src_mask */ | |
5a9f5403 | 253 | ENCODE_JTYPE_IMM (-1U), /* dst_mask */ |
e23eba97 NC |
254 | TRUE), /* pcrel_offset */ |
255 | ||
256 | /* 32-bit PC-relative function call (AUIPC/JALR). */ | |
257 | HOWTO (R_RISCV_CALL, /* type */ | |
258 | 0, /* rightshift */ | |
b1b11e92 | 259 | 4, /* size */ |
e23eba97 NC |
260 | 64, /* bitsize */ |
261 | TRUE, /* pc_relative */ | |
262 | 0, /* bitpos */ | |
263 | complain_overflow_dont, /* complain_on_overflow */ | |
264 | bfd_elf_generic_reloc, /* special_function */ | |
265 | "R_RISCV_CALL", /* name */ | |
266 | FALSE, /* partial_inplace */ | |
267 | 0, /* src_mask */ | |
268 | ENCODE_UTYPE_IMM (-1U) | ((bfd_vma) ENCODE_ITYPE_IMM (-1U) << 32), | |
269 | /* dst_mask */ | |
270 | TRUE), /* pcrel_offset */ | |
271 | ||
1d65abb5 | 272 | /* Like R_RISCV_CALL, but not locally binding. */ |
e23eba97 NC |
273 | HOWTO (R_RISCV_CALL_PLT, /* type */ |
274 | 0, /* rightshift */ | |
b1b11e92 | 275 | 4, /* size */ |
e23eba97 NC |
276 | 64, /* bitsize */ |
277 | TRUE, /* pc_relative */ | |
278 | 0, /* bitpos */ | |
279 | complain_overflow_dont, /* complain_on_overflow */ | |
280 | bfd_elf_generic_reloc, /* special_function */ | |
281 | "R_RISCV_CALL_PLT", /* name */ | |
282 | FALSE, /* partial_inplace */ | |
283 | 0, /* src_mask */ | |
284 | ENCODE_UTYPE_IMM (-1U) | ((bfd_vma) ENCODE_ITYPE_IMM (-1U) << 32), | |
285 | /* dst_mask */ | |
286 | TRUE), /* pcrel_offset */ | |
287 | ||
288 | /* High 20 bits of 32-bit PC-relative GOT access. */ | |
289 | HOWTO (R_RISCV_GOT_HI20, /* type */ | |
290 | 0, /* rightshift */ | |
291 | 2, /* size */ | |
292 | 32, /* bitsize */ | |
293 | TRUE, /* pc_relative */ | |
294 | 0, /* bitpos */ | |
295 | complain_overflow_dont, /* complain_on_overflow */ | |
296 | bfd_elf_generic_reloc, /* special_function */ | |
297 | "R_RISCV_GOT_HI20", /* name */ | |
298 | FALSE, /* partial_inplace */ | |
299 | 0, /* src_mask */ | |
300 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
301 | FALSE), /* pcrel_offset */ | |
302 | ||
303 | /* High 20 bits of 32-bit PC-relative TLS IE GOT access. */ | |
304 | HOWTO (R_RISCV_TLS_GOT_HI20, /* type */ | |
305 | 0, /* rightshift */ | |
306 | 2, /* size */ | |
307 | 32, /* bitsize */ | |
308 | TRUE, /* pc_relative */ | |
309 | 0, /* bitpos */ | |
310 | complain_overflow_dont, /* complain_on_overflow */ | |
311 | bfd_elf_generic_reloc, /* special_function */ | |
312 | "R_RISCV_TLS_GOT_HI20", /* name */ | |
313 | FALSE, /* partial_inplace */ | |
314 | 0, /* src_mask */ | |
315 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
316 | FALSE), /* pcrel_offset */ | |
317 | ||
318 | /* High 20 bits of 32-bit PC-relative TLS GD GOT reference. */ | |
319 | HOWTO (R_RISCV_TLS_GD_HI20, /* type */ | |
320 | 0, /* rightshift */ | |
321 | 2, /* size */ | |
322 | 32, /* bitsize */ | |
323 | TRUE, /* pc_relative */ | |
324 | 0, /* bitpos */ | |
325 | complain_overflow_dont, /* complain_on_overflow */ | |
326 | bfd_elf_generic_reloc, /* special_function */ | |
327 | "R_RISCV_TLS_GD_HI20", /* name */ | |
328 | FALSE, /* partial_inplace */ | |
329 | 0, /* src_mask */ | |
330 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
331 | FALSE), /* pcrel_offset */ | |
332 | ||
333 | /* High 20 bits of 32-bit PC-relative reference. */ | |
334 | HOWTO (R_RISCV_PCREL_HI20, /* type */ | |
335 | 0, /* rightshift */ | |
336 | 2, /* size */ | |
337 | 32, /* bitsize */ | |
338 | TRUE, /* pc_relative */ | |
339 | 0, /* bitpos */ | |
340 | complain_overflow_dont, /* complain_on_overflow */ | |
341 | bfd_elf_generic_reloc, /* special_function */ | |
342 | "R_RISCV_PCREL_HI20", /* name */ | |
343 | FALSE, /* partial_inplace */ | |
344 | 0, /* src_mask */ | |
345 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
346 | TRUE), /* pcrel_offset */ | |
347 | ||
348 | /* Low 12 bits of a 32-bit PC-relative load or add. */ | |
349 | HOWTO (R_RISCV_PCREL_LO12_I, /* type */ | |
350 | 0, /* rightshift */ | |
351 | 2, /* size */ | |
352 | 32, /* bitsize */ | |
353 | FALSE, /* pc_relative */ | |
354 | 0, /* bitpos */ | |
355 | complain_overflow_dont, /* complain_on_overflow */ | |
356 | bfd_elf_generic_reloc, /* special_function */ | |
357 | "R_RISCV_PCREL_LO12_I", /* name */ | |
358 | FALSE, /* partial_inplace */ | |
359 | 0, /* src_mask */ | |
360 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
361 | FALSE), /* pcrel_offset */ | |
362 | ||
363 | /* Low 12 bits of a 32-bit PC-relative store. */ | |
364 | HOWTO (R_RISCV_PCREL_LO12_S, /* type */ | |
365 | 0, /* rightshift */ | |
366 | 2, /* size */ | |
367 | 32, /* bitsize */ | |
368 | FALSE, /* pc_relative */ | |
369 | 0, /* bitpos */ | |
370 | complain_overflow_dont, /* complain_on_overflow */ | |
371 | bfd_elf_generic_reloc, /* special_function */ | |
372 | "R_RISCV_PCREL_LO12_S", /* name */ | |
373 | FALSE, /* partial_inplace */ | |
374 | 0, /* src_mask */ | |
375 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
376 | FALSE), /* pcrel_offset */ | |
377 | ||
378 | /* High 20 bits of 32-bit absolute address. */ | |
379 | HOWTO (R_RISCV_HI20, /* type */ | |
380 | 0, /* rightshift */ | |
381 | 2, /* size */ | |
382 | 32, /* bitsize */ | |
383 | FALSE, /* pc_relative */ | |
384 | 0, /* bitpos */ | |
385 | complain_overflow_dont, /* complain_on_overflow */ | |
386 | bfd_elf_generic_reloc, /* special_function */ | |
387 | "R_RISCV_HI20", /* name */ | |
388 | FALSE, /* partial_inplace */ | |
389 | 0, /* src_mask */ | |
390 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
391 | FALSE), /* pcrel_offset */ | |
392 | ||
393 | /* High 12 bits of 32-bit load or add. */ | |
394 | HOWTO (R_RISCV_LO12_I, /* type */ | |
395 | 0, /* rightshift */ | |
396 | 2, /* size */ | |
397 | 32, /* bitsize */ | |
398 | FALSE, /* pc_relative */ | |
399 | 0, /* bitpos */ | |
400 | complain_overflow_dont, /* complain_on_overflow */ | |
401 | bfd_elf_generic_reloc, /* special_function */ | |
402 | "R_RISCV_LO12_I", /* name */ | |
403 | FALSE, /* partial_inplace */ | |
404 | 0, /* src_mask */ | |
405 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
406 | FALSE), /* pcrel_offset */ | |
407 | ||
408 | /* High 12 bits of 32-bit store. */ | |
409 | HOWTO (R_RISCV_LO12_S, /* type */ | |
410 | 0, /* rightshift */ | |
411 | 2, /* size */ | |
412 | 32, /* bitsize */ | |
413 | FALSE, /* pc_relative */ | |
414 | 0, /* bitpos */ | |
415 | complain_overflow_dont, /* complain_on_overflow */ | |
416 | bfd_elf_generic_reloc, /* special_function */ | |
417 | "R_RISCV_LO12_S", /* name */ | |
418 | FALSE, /* partial_inplace */ | |
419 | 0, /* src_mask */ | |
420 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
421 | FALSE), /* pcrel_offset */ | |
422 | ||
423 | /* High 20 bits of TLS LE thread pointer offset. */ | |
424 | HOWTO (R_RISCV_TPREL_HI20, /* type */ | |
425 | 0, /* rightshift */ | |
426 | 2, /* size */ | |
427 | 32, /* bitsize */ | |
428 | FALSE, /* pc_relative */ | |
429 | 0, /* bitpos */ | |
430 | complain_overflow_signed, /* complain_on_overflow */ | |
431 | bfd_elf_generic_reloc, /* special_function */ | |
432 | "R_RISCV_TPREL_HI20", /* name */ | |
433 | TRUE, /* partial_inplace */ | |
434 | 0, /* src_mask */ | |
435 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
436 | FALSE), /* pcrel_offset */ | |
437 | ||
438 | /* Low 12 bits of TLS LE thread pointer offset for loads and adds. */ | |
439 | HOWTO (R_RISCV_TPREL_LO12_I, /* type */ | |
440 | 0, /* rightshift */ | |
441 | 2, /* size */ | |
442 | 32, /* bitsize */ | |
443 | FALSE, /* pc_relative */ | |
444 | 0, /* bitpos */ | |
445 | complain_overflow_signed, /* complain_on_overflow */ | |
446 | bfd_elf_generic_reloc, /* special_function */ | |
447 | "R_RISCV_TPREL_LO12_I", /* name */ | |
448 | FALSE, /* partial_inplace */ | |
449 | 0, /* src_mask */ | |
450 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
451 | FALSE), /* pcrel_offset */ | |
452 | ||
453 | /* Low 12 bits of TLS LE thread pointer offset for stores. */ | |
454 | HOWTO (R_RISCV_TPREL_LO12_S, /* type */ | |
455 | 0, /* rightshift */ | |
456 | 2, /* size */ | |
457 | 32, /* bitsize */ | |
458 | FALSE, /* pc_relative */ | |
459 | 0, /* bitpos */ | |
460 | complain_overflow_signed, /* complain_on_overflow */ | |
461 | bfd_elf_generic_reloc, /* special_function */ | |
462 | "R_RISCV_TPREL_LO12_S", /* name */ | |
463 | FALSE, /* partial_inplace */ | |
464 | 0, /* src_mask */ | |
465 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
466 | FALSE), /* pcrel_offset */ | |
467 | ||
1d65abb5 | 468 | /* TLS LE thread pointer usage. May be relaxed. */ |
e23eba97 NC |
469 | HOWTO (R_RISCV_TPREL_ADD, /* type */ |
470 | 0, /* rightshift */ | |
b1b11e92 AM |
471 | 3, /* size */ |
472 | 0, /* bitsize */ | |
e23eba97 NC |
473 | FALSE, /* pc_relative */ |
474 | 0, /* bitpos */ | |
475 | complain_overflow_dont, /* complain_on_overflow */ | |
476 | bfd_elf_generic_reloc, /* special_function */ | |
477 | "R_RISCV_TPREL_ADD", /* name */ | |
b1b11e92 | 478 | FALSE, /* partial_inplace */ |
e23eba97 NC |
479 | 0, /* src_mask */ |
480 | 0, /* dst_mask */ | |
481 | FALSE), /* pcrel_offset */ | |
482 | ||
483 | /* 8-bit in-place addition, for local label subtraction. */ | |
484 | HOWTO (R_RISCV_ADD8, /* type */ | |
485 | 0, /* rightshift */ | |
486 | 0, /* size */ | |
0b14696a | 487 | 8, /* bitsize */ |
e23eba97 NC |
488 | FALSE, /* pc_relative */ |
489 | 0, /* bitpos */ | |
490 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 491 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 NC |
492 | "R_RISCV_ADD8", /* name */ |
493 | FALSE, /* partial_inplace */ | |
494 | 0, /* src_mask */ | |
b1b11e92 | 495 | 0xff, /* dst_mask */ |
e23eba97 NC |
496 | FALSE), /* pcrel_offset */ |
497 | ||
498 | /* 16-bit in-place addition, for local label subtraction. */ | |
499 | HOWTO (R_RISCV_ADD16, /* type */ | |
500 | 0, /* rightshift */ | |
501 | 1, /* size */ | |
502 | 16, /* bitsize */ | |
503 | FALSE, /* pc_relative */ | |
504 | 0, /* bitpos */ | |
505 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 506 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 NC |
507 | "R_RISCV_ADD16", /* name */ |
508 | FALSE, /* partial_inplace */ | |
509 | 0, /* src_mask */ | |
b1b11e92 | 510 | 0xffff, /* dst_mask */ |
e23eba97 NC |
511 | FALSE), /* pcrel_offset */ |
512 | ||
513 | /* 32-bit in-place addition, for local label subtraction. */ | |
514 | HOWTO (R_RISCV_ADD32, /* type */ | |
515 | 0, /* rightshift */ | |
516 | 2, /* size */ | |
517 | 32, /* bitsize */ | |
518 | FALSE, /* pc_relative */ | |
519 | 0, /* bitpos */ | |
520 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 521 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 NC |
522 | "R_RISCV_ADD32", /* name */ |
523 | FALSE, /* partial_inplace */ | |
524 | 0, /* src_mask */ | |
b1b11e92 | 525 | 0xffffffff, /* dst_mask */ |
e23eba97 NC |
526 | FALSE), /* pcrel_offset */ |
527 | ||
528 | /* 64-bit in-place addition, for local label subtraction. */ | |
529 | HOWTO (R_RISCV_ADD64, /* type */ | |
530 | 0, /* rightshift */ | |
531 | 4, /* size */ | |
532 | 64, /* bitsize */ | |
533 | FALSE, /* pc_relative */ | |
534 | 0, /* bitpos */ | |
535 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 536 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 NC |
537 | "R_RISCV_ADD64", /* name */ |
538 | FALSE, /* partial_inplace */ | |
539 | 0, /* src_mask */ | |
540 | MINUS_ONE, /* dst_mask */ | |
541 | FALSE), /* pcrel_offset */ | |
542 | ||
543 | /* 8-bit in-place addition, for local label subtraction. */ | |
544 | HOWTO (R_RISCV_SUB8, /* type */ | |
545 | 0, /* rightshift */ | |
546 | 0, /* size */ | |
547 | 8, /* bitsize */ | |
548 | FALSE, /* pc_relative */ | |
549 | 0, /* bitpos */ | |
550 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 551 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 NC |
552 | "R_RISCV_SUB8", /* name */ |
553 | FALSE, /* partial_inplace */ | |
554 | 0, /* src_mask */ | |
b1b11e92 | 555 | 0xff, /* dst_mask */ |
e23eba97 NC |
556 | FALSE), /* pcrel_offset */ |
557 | ||
558 | /* 16-bit in-place addition, for local label subtraction. */ | |
559 | HOWTO (R_RISCV_SUB16, /* type */ | |
560 | 0, /* rightshift */ | |
561 | 1, /* size */ | |
562 | 16, /* bitsize */ | |
563 | FALSE, /* pc_relative */ | |
564 | 0, /* bitpos */ | |
565 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 566 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 NC |
567 | "R_RISCV_SUB16", /* name */ |
568 | FALSE, /* partial_inplace */ | |
569 | 0, /* src_mask */ | |
b1b11e92 | 570 | 0xffff, /* dst_mask */ |
e23eba97 NC |
571 | FALSE), /* pcrel_offset */ |
572 | ||
573 | /* 32-bit in-place addition, for local label subtraction. */ | |
574 | HOWTO (R_RISCV_SUB32, /* type */ | |
575 | 0, /* rightshift */ | |
576 | 2, /* size */ | |
577 | 32, /* bitsize */ | |
578 | FALSE, /* pc_relative */ | |
579 | 0, /* bitpos */ | |
580 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 581 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 NC |
582 | "R_RISCV_SUB32", /* name */ |
583 | FALSE, /* partial_inplace */ | |
584 | 0, /* src_mask */ | |
b1b11e92 | 585 | 0xffffffff, /* dst_mask */ |
e23eba97 NC |
586 | FALSE), /* pcrel_offset */ |
587 | ||
588 | /* 64-bit in-place addition, for local label subtraction. */ | |
589 | HOWTO (R_RISCV_SUB64, /* type */ | |
590 | 0, /* rightshift */ | |
591 | 4, /* size */ | |
592 | 64, /* bitsize */ | |
593 | FALSE, /* pc_relative */ | |
594 | 0, /* bitpos */ | |
595 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 596 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 NC |
597 | "R_RISCV_SUB64", /* name */ |
598 | FALSE, /* partial_inplace */ | |
599 | 0, /* src_mask */ | |
600 | MINUS_ONE, /* dst_mask */ | |
601 | FALSE), /* pcrel_offset */ | |
602 | ||
603 | /* GNU extension to record C++ vtable hierarchy */ | |
604 | HOWTO (R_RISCV_GNU_VTINHERIT, /* type */ | |
605 | 0, /* rightshift */ | |
606 | 4, /* size */ | |
607 | 0, /* bitsize */ | |
608 | FALSE, /* pc_relative */ | |
609 | 0, /* bitpos */ | |
610 | complain_overflow_dont, /* complain_on_overflow */ | |
611 | NULL, /* special_function */ | |
612 | "R_RISCV_GNU_VTINHERIT", /* name */ | |
613 | FALSE, /* partial_inplace */ | |
614 | 0, /* src_mask */ | |
615 | 0, /* dst_mask */ | |
616 | FALSE), /* pcrel_offset */ | |
617 | ||
618 | /* GNU extension to record C++ vtable member usage */ | |
619 | HOWTO (R_RISCV_GNU_VTENTRY, /* type */ | |
620 | 0, /* rightshift */ | |
621 | 4, /* size */ | |
622 | 0, /* bitsize */ | |
623 | FALSE, /* pc_relative */ | |
624 | 0, /* bitpos */ | |
625 | complain_overflow_dont, /* complain_on_overflow */ | |
626 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
627 | "R_RISCV_GNU_VTENTRY", /* name */ | |
628 | FALSE, /* partial_inplace */ | |
629 | 0, /* src_mask */ | |
630 | 0, /* dst_mask */ | |
631 | FALSE), /* pcrel_offset */ | |
632 | ||
633 | /* Indicates an alignment statement. The addend field encodes how many | |
634 | bytes of NOPs follow the statement. The desired alignment is the | |
635 | addend rounded up to the next power of two. */ | |
636 | HOWTO (R_RISCV_ALIGN, /* type */ | |
637 | 0, /* rightshift */ | |
b1b11e92 | 638 | 3, /* size */ |
e23eba97 NC |
639 | 0, /* bitsize */ |
640 | FALSE, /* pc_relative */ | |
641 | 0, /* bitpos */ | |
642 | complain_overflow_dont, /* complain_on_overflow */ | |
643 | bfd_elf_generic_reloc, /* special_function */ | |
644 | "R_RISCV_ALIGN", /* name */ | |
645 | FALSE, /* partial_inplace */ | |
646 | 0, /* src_mask */ | |
647 | 0, /* dst_mask */ | |
b1b11e92 | 648 | FALSE), /* pcrel_offset */ |
e23eba97 NC |
649 | |
650 | /* 8-bit PC-relative branch offset. */ | |
651 | HOWTO (R_RISCV_RVC_BRANCH, /* type */ | |
652 | 0, /* rightshift */ | |
b1b11e92 AM |
653 | 1, /* size */ |
654 | 16, /* bitsize */ | |
e23eba97 NC |
655 | TRUE, /* pc_relative */ |
656 | 0, /* bitpos */ | |
657 | complain_overflow_signed, /* complain_on_overflow */ | |
658 | bfd_elf_generic_reloc, /* special_function */ | |
659 | "R_RISCV_RVC_BRANCH", /* name */ | |
660 | FALSE, /* partial_inplace */ | |
661 | 0, /* src_mask */ | |
5a9f5403 | 662 | ENCODE_CBTYPE_IMM (-1U), /* dst_mask */ |
e23eba97 NC |
663 | TRUE), /* pcrel_offset */ |
664 | ||
665 | /* 11-bit PC-relative jump offset. */ | |
666 | HOWTO (R_RISCV_RVC_JUMP, /* type */ | |
667 | 0, /* rightshift */ | |
b1b11e92 AM |
668 | 1, /* size */ |
669 | 16, /* bitsize */ | |
e23eba97 NC |
670 | TRUE, /* pc_relative */ |
671 | 0, /* bitpos */ | |
672 | complain_overflow_dont, /* complain_on_overflow */ | |
e23eba97 NC |
673 | bfd_elf_generic_reloc, /* special_function */ |
674 | "R_RISCV_RVC_JUMP", /* name */ | |
675 | FALSE, /* partial_inplace */ | |
676 | 0, /* src_mask */ | |
5a9f5403 | 677 | ENCODE_CJTYPE_IMM (-1U), /* dst_mask */ |
e23eba97 NC |
678 | TRUE), /* pcrel_offset */ |
679 | ||
680 | /* High 6 bits of 18-bit absolute address. */ | |
681 | HOWTO (R_RISCV_RVC_LUI, /* type */ | |
682 | 0, /* rightshift */ | |
b1b11e92 AM |
683 | 1, /* size */ |
684 | 16, /* bitsize */ | |
e23eba97 NC |
685 | FALSE, /* pc_relative */ |
686 | 0, /* bitpos */ | |
687 | complain_overflow_dont, /* complain_on_overflow */ | |
688 | bfd_elf_generic_reloc, /* special_function */ | |
689 | "R_RISCV_RVC_LUI", /* name */ | |
690 | FALSE, /* partial_inplace */ | |
691 | 0, /* src_mask */ | |
5a9f5403 | 692 | ENCODE_CITYPE_IMM (-1U), /* dst_mask */ |
e23eba97 NC |
693 | FALSE), /* pcrel_offset */ |
694 | ||
1d65abb5 | 695 | /* GP-relative load. */ |
e23eba97 NC |
696 | HOWTO (R_RISCV_GPREL_I, /* type */ |
697 | 0, /* rightshift */ | |
698 | 2, /* size */ | |
699 | 32, /* bitsize */ | |
700 | FALSE, /* pc_relative */ | |
701 | 0, /* bitpos */ | |
702 | complain_overflow_dont, /* complain_on_overflow */ | |
703 | bfd_elf_generic_reloc, /* special_function */ | |
704 | "R_RISCV_GPREL_I", /* name */ | |
705 | FALSE, /* partial_inplace */ | |
706 | 0, /* src_mask */ | |
707 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
708 | FALSE), /* pcrel_offset */ | |
709 | ||
1d65abb5 | 710 | /* GP-relative store. */ |
e23eba97 NC |
711 | HOWTO (R_RISCV_GPREL_S, /* type */ |
712 | 0, /* rightshift */ | |
713 | 2, /* size */ | |
714 | 32, /* bitsize */ | |
715 | FALSE, /* pc_relative */ | |
716 | 0, /* bitpos */ | |
717 | complain_overflow_dont, /* complain_on_overflow */ | |
718 | bfd_elf_generic_reloc, /* special_function */ | |
719 | "R_RISCV_GPREL_S", /* name */ | |
720 | FALSE, /* partial_inplace */ | |
721 | 0, /* src_mask */ | |
722 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
723 | FALSE), /* pcrel_offset */ | |
45f76423 AW |
724 | |
725 | /* TP-relative TLS LE load. */ | |
726 | HOWTO (R_RISCV_TPREL_I, /* type */ | |
727 | 0, /* rightshift */ | |
728 | 2, /* size */ | |
729 | 32, /* bitsize */ | |
730 | FALSE, /* pc_relative */ | |
731 | 0, /* bitpos */ | |
732 | complain_overflow_signed, /* complain_on_overflow */ | |
733 | bfd_elf_generic_reloc, /* special_function */ | |
734 | "R_RISCV_TPREL_I", /* name */ | |
735 | FALSE, /* partial_inplace */ | |
736 | 0, /* src_mask */ | |
737 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
738 | FALSE), /* pcrel_offset */ | |
739 | ||
740 | /* TP-relative TLS LE store. */ | |
741 | HOWTO (R_RISCV_TPREL_S, /* type */ | |
742 | 0, /* rightshift */ | |
743 | 2, /* size */ | |
744 | 32, /* bitsize */ | |
745 | FALSE, /* pc_relative */ | |
746 | 0, /* bitpos */ | |
747 | complain_overflow_signed, /* complain_on_overflow */ | |
748 | bfd_elf_generic_reloc, /* special_function */ | |
749 | "R_RISCV_TPREL_S", /* name */ | |
750 | FALSE, /* partial_inplace */ | |
751 | 0, /* src_mask */ | |
752 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
753 | FALSE), /* pcrel_offset */ | |
754 | ||
755 | /* The paired relocation may be relaxed. */ | |
756 | HOWTO (R_RISCV_RELAX, /* type */ | |
757 | 0, /* rightshift */ | |
758 | 3, /* size */ | |
759 | 0, /* bitsize */ | |
760 | FALSE, /* pc_relative */ | |
761 | 0, /* bitpos */ | |
762 | complain_overflow_dont, /* complain_on_overflow */ | |
763 | bfd_elf_generic_reloc, /* special_function */ | |
764 | "R_RISCV_RELAX", /* name */ | |
765 | FALSE, /* partial_inplace */ | |
766 | 0, /* src_mask */ | |
767 | 0, /* dst_mask */ | |
768 | FALSE), /* pcrel_offset */ | |
769 | ||
770 | /* 6-bit in-place addition, for local label subtraction. */ | |
771 | HOWTO (R_RISCV_SUB6, /* type */ | |
772 | 0, /* rightshift */ | |
773 | 0, /* size */ | |
774 | 8, /* bitsize */ | |
775 | FALSE, /* pc_relative */ | |
776 | 0, /* bitpos */ | |
777 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 778 | riscv_elf_add_sub_reloc, /* special_function */ |
45f76423 AW |
779 | "R_RISCV_SUB6", /* name */ |
780 | FALSE, /* partial_inplace */ | |
781 | 0, /* src_mask */ | |
782 | 0x3f, /* dst_mask */ | |
783 | FALSE), /* pcrel_offset */ | |
784 | ||
785 | /* 6-bit in-place setting, for local label subtraction. */ | |
786 | HOWTO (R_RISCV_SET6, /* type */ | |
787 | 0, /* rightshift */ | |
788 | 0, /* size */ | |
789 | 8, /* bitsize */ | |
790 | FALSE, /* pc_relative */ | |
791 | 0, /* bitpos */ | |
792 | complain_overflow_dont, /* complain_on_overflow */ | |
793 | bfd_elf_generic_reloc, /* special_function */ | |
794 | "R_RISCV_SET6", /* name */ | |
795 | FALSE, /* partial_inplace */ | |
796 | 0, /* src_mask */ | |
797 | 0x3f, /* dst_mask */ | |
798 | FALSE), /* pcrel_offset */ | |
799 | ||
800 | /* 8-bit in-place setting, for local label subtraction. */ | |
801 | HOWTO (R_RISCV_SET8, /* type */ | |
802 | 0, /* rightshift */ | |
803 | 0, /* size */ | |
804 | 8, /* bitsize */ | |
805 | FALSE, /* pc_relative */ | |
806 | 0, /* bitpos */ | |
807 | complain_overflow_dont, /* complain_on_overflow */ | |
808 | bfd_elf_generic_reloc, /* special_function */ | |
809 | "R_RISCV_SET8", /* name */ | |
810 | FALSE, /* partial_inplace */ | |
811 | 0, /* src_mask */ | |
b1b11e92 | 812 | 0xff, /* dst_mask */ |
45f76423 AW |
813 | FALSE), /* pcrel_offset */ |
814 | ||
815 | /* 16-bit in-place setting, for local label subtraction. */ | |
816 | HOWTO (R_RISCV_SET16, /* type */ | |
817 | 0, /* rightshift */ | |
818 | 1, /* size */ | |
819 | 16, /* bitsize */ | |
820 | FALSE, /* pc_relative */ | |
821 | 0, /* bitpos */ | |
822 | complain_overflow_dont, /* complain_on_overflow */ | |
823 | bfd_elf_generic_reloc, /* special_function */ | |
824 | "R_RISCV_SET16", /* name */ | |
825 | FALSE, /* partial_inplace */ | |
826 | 0, /* src_mask */ | |
b1b11e92 | 827 | 0xffff, /* dst_mask */ |
45f76423 AW |
828 | FALSE), /* pcrel_offset */ |
829 | ||
830 | /* 32-bit in-place setting, for local label subtraction. */ | |
831 | HOWTO (R_RISCV_SET32, /* type */ | |
832 | 0, /* rightshift */ | |
833 | 2, /* size */ | |
834 | 32, /* bitsize */ | |
835 | FALSE, /* pc_relative */ | |
836 | 0, /* bitpos */ | |
837 | complain_overflow_dont, /* complain_on_overflow */ | |
838 | bfd_elf_generic_reloc, /* special_function */ | |
839 | "R_RISCV_SET32", /* name */ | |
840 | FALSE, /* partial_inplace */ | |
841 | 0, /* src_mask */ | |
b1b11e92 | 842 | 0xffffffff, /* dst_mask */ |
45f76423 | 843 | FALSE), /* pcrel_offset */ |
a6cbf936 KLC |
844 | |
845 | /* 32-bit PC relative. */ | |
846 | HOWTO (R_RISCV_32_PCREL, /* type */ | |
847 | 0, /* rightshift */ | |
848 | 2, /* size */ | |
849 | 32, /* bitsize */ | |
850 | TRUE, /* pc_relative */ | |
851 | 0, /* bitpos */ | |
852 | complain_overflow_dont, /* complain_on_overflow */ | |
853 | bfd_elf_generic_reloc, /* special_function */ | |
854 | "R_RISCV_32_PCREL", /* name */ | |
855 | FALSE, /* partial_inplace */ | |
02dd9d25 NC |
856 | 0, /* src_mask */ |
857 | 0xffffffff, /* dst_mask */ | |
858 | FALSE), /* pcrel_offset */ | |
859 | ||
860 | /* Relocation against a local ifunc symbol in a shared object. */ | |
861 | HOWTO (R_RISCV_IRELATIVE, /* type */ | |
862 | 0, /* rightshift */ | |
863 | 2, /* size */ | |
864 | 32, /* bitsize */ | |
865 | FALSE, /* pc_relative */ | |
866 | 0, /* bitpos */ | |
867 | complain_overflow_dont, /* complain_on_overflow */ | |
868 | bfd_elf_generic_reloc, /* special_function */ | |
869 | "R_RISCV_IRELATIVE", /* name */ | |
870 | FALSE, /* partial_inplace */ | |
a6cbf936 | 871 | 0, /* src_mask */ |
b1b11e92 | 872 | 0xffffffff, /* dst_mask */ |
a6cbf936 | 873 | FALSE), /* pcrel_offset */ |
e23eba97 NC |
874 | }; |
875 | ||
876 | /* A mapping from BFD reloc types to RISC-V ELF reloc types. */ | |
e23eba97 NC |
877 | struct elf_reloc_map |
878 | { | |
879 | bfd_reloc_code_real_type bfd_val; | |
880 | enum elf_riscv_reloc_type elf_val; | |
881 | }; | |
882 | ||
883 | static const struct elf_reloc_map riscv_reloc_map[] = | |
884 | { | |
885 | { BFD_RELOC_NONE, R_RISCV_NONE }, | |
886 | { BFD_RELOC_32, R_RISCV_32 }, | |
887 | { BFD_RELOC_64, R_RISCV_64 }, | |
888 | { BFD_RELOC_RISCV_ADD8, R_RISCV_ADD8 }, | |
889 | { BFD_RELOC_RISCV_ADD16, R_RISCV_ADD16 }, | |
890 | { BFD_RELOC_RISCV_ADD32, R_RISCV_ADD32 }, | |
891 | { BFD_RELOC_RISCV_ADD64, R_RISCV_ADD64 }, | |
892 | { BFD_RELOC_RISCV_SUB8, R_RISCV_SUB8 }, | |
893 | { BFD_RELOC_RISCV_SUB16, R_RISCV_SUB16 }, | |
894 | { BFD_RELOC_RISCV_SUB32, R_RISCV_SUB32 }, | |
895 | { BFD_RELOC_RISCV_SUB64, R_RISCV_SUB64 }, | |
896 | { BFD_RELOC_CTOR, R_RISCV_64 }, | |
897 | { BFD_RELOC_12_PCREL, R_RISCV_BRANCH }, | |
898 | { BFD_RELOC_RISCV_HI20, R_RISCV_HI20 }, | |
899 | { BFD_RELOC_RISCV_LO12_I, R_RISCV_LO12_I }, | |
900 | { BFD_RELOC_RISCV_LO12_S, R_RISCV_LO12_S }, | |
901 | { BFD_RELOC_RISCV_PCREL_LO12_I, R_RISCV_PCREL_LO12_I }, | |
902 | { BFD_RELOC_RISCV_PCREL_LO12_S, R_RISCV_PCREL_LO12_S }, | |
903 | { BFD_RELOC_RISCV_CALL, R_RISCV_CALL }, | |
904 | { BFD_RELOC_RISCV_CALL_PLT, R_RISCV_CALL_PLT }, | |
905 | { BFD_RELOC_RISCV_PCREL_HI20, R_RISCV_PCREL_HI20 }, | |
906 | { BFD_RELOC_RISCV_JMP, R_RISCV_JAL }, | |
907 | { BFD_RELOC_RISCV_GOT_HI20, R_RISCV_GOT_HI20 }, | |
908 | { BFD_RELOC_RISCV_TLS_DTPMOD32, R_RISCV_TLS_DTPMOD32 }, | |
909 | { BFD_RELOC_RISCV_TLS_DTPREL32, R_RISCV_TLS_DTPREL32 }, | |
910 | { BFD_RELOC_RISCV_TLS_DTPMOD64, R_RISCV_TLS_DTPMOD64 }, | |
911 | { BFD_RELOC_RISCV_TLS_DTPREL64, R_RISCV_TLS_DTPREL64 }, | |
912 | { BFD_RELOC_RISCV_TLS_TPREL32, R_RISCV_TLS_TPREL32 }, | |
913 | { BFD_RELOC_RISCV_TLS_TPREL64, R_RISCV_TLS_TPREL64 }, | |
914 | { BFD_RELOC_RISCV_TPREL_HI20, R_RISCV_TPREL_HI20 }, | |
915 | { BFD_RELOC_RISCV_TPREL_ADD, R_RISCV_TPREL_ADD }, | |
916 | { BFD_RELOC_RISCV_TPREL_LO12_S, R_RISCV_TPREL_LO12_S }, | |
917 | { BFD_RELOC_RISCV_TPREL_LO12_I, R_RISCV_TPREL_LO12_I }, | |
918 | { BFD_RELOC_RISCV_TLS_GOT_HI20, R_RISCV_TLS_GOT_HI20 }, | |
919 | { BFD_RELOC_RISCV_TLS_GD_HI20, R_RISCV_TLS_GD_HI20 }, | |
920 | { BFD_RELOC_RISCV_ALIGN, R_RISCV_ALIGN }, | |
921 | { BFD_RELOC_RISCV_RVC_BRANCH, R_RISCV_RVC_BRANCH }, | |
922 | { BFD_RELOC_RISCV_RVC_JUMP, R_RISCV_RVC_JUMP }, | |
923 | { BFD_RELOC_RISCV_RVC_LUI, R_RISCV_RVC_LUI }, | |
924 | { BFD_RELOC_RISCV_GPREL_I, R_RISCV_GPREL_I }, | |
925 | { BFD_RELOC_RISCV_GPREL_S, R_RISCV_GPREL_S }, | |
45f76423 AW |
926 | { BFD_RELOC_RISCV_TPREL_I, R_RISCV_TPREL_I }, |
927 | { BFD_RELOC_RISCV_TPREL_S, R_RISCV_TPREL_S }, | |
928 | { BFD_RELOC_RISCV_RELAX, R_RISCV_RELAX }, | |
929 | { BFD_RELOC_RISCV_SUB6, R_RISCV_SUB6 }, | |
930 | { BFD_RELOC_RISCV_SET6, R_RISCV_SET6 }, | |
931 | { BFD_RELOC_RISCV_SET8, R_RISCV_SET8 }, | |
932 | { BFD_RELOC_RISCV_SET16, R_RISCV_SET16 }, | |
933 | { BFD_RELOC_RISCV_SET32, R_RISCV_SET32 }, | |
a6cbf936 | 934 | { BFD_RELOC_RISCV_32_PCREL, R_RISCV_32_PCREL }, |
e23eba97 NC |
935 | }; |
936 | ||
937 | /* Given a BFD reloc type, return a howto structure. */ | |
938 | ||
939 | reloc_howto_type * | |
940 | riscv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
941 | bfd_reloc_code_real_type code) | |
942 | { | |
943 | unsigned int i; | |
944 | ||
945 | for (i = 0; i < ARRAY_SIZE (riscv_reloc_map); i++) | |
946 | if (riscv_reloc_map[i].bfd_val == code) | |
947 | return &howto_table[(int) riscv_reloc_map[i].elf_val]; | |
948 | ||
949 | bfd_set_error (bfd_error_bad_value); | |
950 | return NULL; | |
951 | } | |
952 | ||
953 | reloc_howto_type * | |
954 | riscv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) | |
955 | { | |
956 | unsigned int i; | |
957 | ||
958 | for (i = 0; i < ARRAY_SIZE (howto_table); i++) | |
959 | if (howto_table[i].name && strcasecmp (howto_table[i].name, r_name) == 0) | |
960 | return &howto_table[i]; | |
961 | ||
962 | return NULL; | |
963 | } | |
964 | ||
965 | reloc_howto_type * | |
0aa13fee | 966 | riscv_elf_rtype_to_howto (bfd *abfd, unsigned int r_type) |
e23eba97 NC |
967 | { |
968 | if (r_type >= ARRAY_SIZE (howto_table)) | |
969 | { | |
0aa13fee AM |
970 | (*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"), |
971 | abfd, r_type); | |
e23eba97 NC |
972 | bfd_set_error (bfd_error_bad_value); |
973 | return NULL; | |
974 | } | |
975 | return &howto_table[r_type]; | |
976 | } | |
57593436 KLC |
977 | |
978 | /* Special_function of RISCV_ADD and RISCV_SUB relocations. */ | |
979 | ||
980 | static bfd_reloc_status_type | |
981 | riscv_elf_add_sub_reloc (bfd *abfd, | |
982 | arelent *reloc_entry, | |
983 | asymbol *symbol, | |
984 | void *data, | |
985 | asection *input_section, | |
986 | bfd *output_bfd, | |
987 | char **error_message ATTRIBUTE_UNUSED) | |
988 | { | |
989 | reloc_howto_type *howto = reloc_entry->howto; | |
990 | bfd_vma relocation; | |
991 | ||
992 | if (output_bfd != NULL | |
993 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
994 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
995 | { | |
996 | reloc_entry->address += input_section->output_offset; | |
997 | return bfd_reloc_ok; | |
998 | } | |
999 | ||
1000 | if (output_bfd != NULL) | |
1001 | return bfd_reloc_continue; | |
1002 | ||
1003 | relocation = symbol->value + symbol->section->output_section->vma | |
1004 | + symbol->section->output_offset + reloc_entry->addend; | |
1005 | bfd_vma old_value = bfd_get (howto->bitsize, abfd, | |
1006 | data + reloc_entry->address); | |
1007 | ||
1008 | switch (howto->type) | |
1009 | { | |
1010 | case R_RISCV_ADD8: | |
1011 | case R_RISCV_ADD16: | |
1012 | case R_RISCV_ADD32: | |
1013 | case R_RISCV_ADD64: | |
1014 | relocation = old_value + relocation; | |
1015 | break; | |
1016 | case R_RISCV_SUB6: | |
1017 | case R_RISCV_SUB8: | |
1018 | case R_RISCV_SUB16: | |
1019 | case R_RISCV_SUB32: | |
1020 | case R_RISCV_SUB64: | |
1021 | relocation = old_value - relocation; | |
1022 | break; | |
1023 | } | |
1024 | bfd_put (howto->bitsize, abfd, relocation, data + reloc_entry->address); | |
1025 | ||
1026 | return bfd_reloc_ok; | |
1027 | } | |
1080bf78 | 1028 | |
3d73d29e NC |
1029 | #define RISCV_UNKNOWN_VERSION -1 |
1030 | ||
dcd709e0 | 1031 | /* Array is used to compare the orders of all extensions quickly. |
7ef19aa6 | 1032 | |
dcd709e0 NC |
1033 | Zero value: Preserved keyword. |
1034 | Negative value: Prefixed keyword (s, h, x, z). | |
1035 | Positive value: Standard extension. */ | |
dfe92496 NC |
1036 | static int riscv_ext_order[26] = {0}; |
1037 | ||
1038 | /* Similar to the strcmp. It returns an integer less than, equal to, | |
1039 | or greater than zero if `subset2` is found, respectively, to be less | |
1040 | than, to match, or be greater than `subset1`. */ | |
1041 | ||
4c0e540e | 1042 | int |
dfe92496 | 1043 | riscv_compare_subsets (const char *subset1, const char *subset2) |
7ef19aa6 | 1044 | { |
dfe92496 NC |
1045 | int order1 = riscv_ext_order[(*subset1 - 'a')]; |
1046 | int order2 = riscv_ext_order[(*subset2 - 'a')]; | |
7ef19aa6 | 1047 | |
dfe92496 NC |
1048 | /* Compare the standard extension first. */ |
1049 | if (order1 > 0 && order2 > 0) | |
1050 | return order1 - order2; | |
7ef19aa6 | 1051 | |
dfe92496 NC |
1052 | if (order1 == order2 && order1 < 0) |
1053 | { | |
1054 | /* Compare the standard addition z extensions. */ | |
1055 | if (*subset1 == 'z') | |
1056 | { | |
1057 | order1 = riscv_ext_order[(*++subset1 - 'a')]; | |
1058 | order2 = riscv_ext_order[(*++subset2 - 'a')]; | |
1059 | if (order1 != order2) | |
1060 | return order1 - order2; | |
1061 | } | |
1062 | return strcasecmp (++subset1, ++subset2); | |
1063 | } | |
1064 | ||
1065 | return order2 - order1; | |
1066 | } | |
1067 | ||
1068 | /* Find subset in the list. Return TRUE and set `current` to the subset | |
1069 | if it is found. Otherwise, return FALSE and set `current` to the place | |
1070 | where we should insert the subset. However, return FALSE with the NULL | |
1071 | `current` means we should insert the subset at the head of subset list, | |
1072 | if needed. */ | |
1073 | ||
1074 | bfd_boolean | |
1075 | riscv_lookup_subset (const riscv_subset_list_t *subset_list, | |
1076 | const char *subset, | |
1077 | riscv_subset_t **current) | |
1078 | { | |
1079 | riscv_subset_t *s, *pre_s = NULL; | |
1080 | ||
1081 | for (s = subset_list->head; | |
1082 | s != NULL; | |
1083 | pre_s = s, s = s->next) | |
1084 | { | |
1085 | int cmp = riscv_compare_subsets (s->name, subset); | |
1086 | if (cmp == 0) | |
1087 | { | |
1088 | *current = s; | |
1089 | return TRUE; | |
1090 | } | |
1091 | else if (cmp > 0) | |
1092 | break; | |
1093 | } | |
1094 | *current = pre_s; | |
1095 | return FALSE; | |
7ef19aa6 NC |
1096 | } |
1097 | ||
dcd709e0 | 1098 | /* Add extension from ISA string to the last of the subset list. */ |
7ef19aa6 NC |
1099 | |
1100 | void | |
1101 | riscv_add_subset (riscv_subset_list_t *subset_list, | |
1102 | const char *subset, | |
1103 | int major, | |
1104 | int minor) | |
1105 | { | |
1106 | riscv_subset_t *s = xmalloc (sizeof *s); | |
1107 | ||
1108 | if (subset_list->head == NULL) | |
1109 | subset_list->head = s; | |
1110 | ||
1111 | s->name = xstrdup (subset); | |
1112 | s->major_version = major; | |
1113 | s->minor_version = minor; | |
1114 | s->next = NULL; | |
1115 | ||
1116 | if (subset_list->tail != NULL) | |
1117 | subset_list->tail->next = s; | |
1118 | subset_list->tail = s; | |
1119 | } | |
1120 | ||
dfe92496 NC |
1121 | /* Add the implicit extension to the subset list. Search the |
1122 | list first, and then find the right place to add. */ | |
1123 | ||
1124 | static void | |
1125 | riscv_add_implicit_subset (riscv_subset_list_t *subset_list, | |
1126 | const char *subset, | |
1127 | int major, | |
1128 | int minor) | |
1129 | { | |
1130 | riscv_subset_t *current, *new; | |
1131 | ||
1132 | if (riscv_lookup_subset (subset_list, subset, ¤t)) | |
1133 | return; | |
1134 | ||
1135 | new = xmalloc (sizeof *new); | |
1136 | new->name = xstrdup (subset); | |
1137 | new->major_version = major; | |
1138 | new->minor_version = minor; | |
1139 | new->next = NULL; | |
1140 | ||
1141 | if (current != NULL) | |
1142 | { | |
1143 | new->next = current->next; | |
1144 | current->next = new; | |
1145 | } | |
1146 | else | |
1147 | { | |
1148 | new->next = subset_list->head; | |
1149 | subset_list->head = new; | |
1150 | } | |
1151 | } | |
1152 | ||
729a5353 NC |
1153 | /* These extensions are added to the subset list for special purposes, |
1154 | with the explicit versions or the RISCV_UNKNOWN_VERSION versions. | |
dcd709e0 | 1155 | Therefore, we won't output them to the output ISA string in the |
729a5353 NC |
1156 | riscv_arch_str1, if the versions are unknown. */ |
1157 | ||
1158 | static bfd_boolean | |
1159 | riscv_ext_dont_care_version (const char *subset) | |
1160 | { | |
1161 | if (strcmp (subset, "g") == 0 | |
1162 | || strcmp (subset, "zicsr") == 0 | |
1163 | || strcmp (subset, "zifencei") == 0) | |
1164 | return TRUE; | |
1165 | return FALSE; | |
1166 | } | |
1167 | ||
dcd709e0 NC |
1168 | /* We have to add all extensions from ISA string first, and then start to |
1169 | add their implicit extensions. The extensions from ISA string must be | |
dfe92496 NC |
1170 | set in order, so we can add them to the last of the subset list |
1171 | directly, without searching. | |
1172 | ||
1173 | Find the default versions for the extension before adding them to | |
7ef19aa6 NC |
1174 | the subset list, if their versions are RISCV_UNKNOWN_VERSION. |
1175 | Afterwards, report errors if we can not find their default versions. */ | |
1176 | ||
1177 | static void | |
1178 | riscv_parse_add_subset (riscv_parse_subset_t *rps, | |
1179 | const char *subset, | |
1180 | int major, | |
dfe92496 NC |
1181 | int minor, |
1182 | bfd_boolean implicit) | |
7ef19aa6 NC |
1183 | { |
1184 | int major_version = major; | |
1185 | int minor_version = minor; | |
1186 | ||
1187 | if ((major_version == RISCV_UNKNOWN_VERSION | |
1188 | || minor_version == RISCV_UNKNOWN_VERSION) | |
1189 | && rps->get_default_version != NULL) | |
1190 | rps->get_default_version (subset, &major_version, &minor_version); | |
1191 | ||
729a5353 | 1192 | if (!riscv_ext_dont_care_version (subset) |
dfe92496 NC |
1193 | && (major_version == RISCV_UNKNOWN_VERSION |
1194 | || minor_version == RISCV_UNKNOWN_VERSION)) | |
7ef19aa6 | 1195 | { |
729a5353 NC |
1196 | /* We only add the implicit extension if it is supported in the |
1197 | chosen ISA spec. */ | |
1198 | if (implicit) | |
1199 | return; | |
1200 | ||
7ef19aa6 NC |
1201 | if (subset[0] == 'x') |
1202 | rps->error_handler | |
1203 | (_("x ISA extension `%s' must be set with the versions"), | |
1204 | subset); | |
1205 | else | |
1206 | rps->error_handler | |
1207 | (_("cannot find default versions of the ISA extension `%s'"), | |
1208 | subset); | |
1209 | return; | |
1210 | } | |
1211 | ||
dfe92496 NC |
1212 | if (!implicit) |
1213 | riscv_add_subset (rps->subset_list, subset, | |
1214 | major_version, minor_version); | |
729a5353 | 1215 | else |
dfe92496 NC |
1216 | riscv_add_implicit_subset (rps->subset_list, subset, |
1217 | major_version, minor_version); | |
7ef19aa6 NC |
1218 | } |
1219 | ||
1220 | /* Release subset list. */ | |
1221 | ||
1222 | void | |
1223 | riscv_release_subset_list (riscv_subset_list_t *subset_list) | |
1224 | { | |
1225 | while (subset_list->head != NULL) | |
1226 | { | |
1227 | riscv_subset_t *next = subset_list->head->next; | |
1228 | free ((void *)subset_list->head->name); | |
1229 | free (subset_list->head); | |
1230 | subset_list->head = next; | |
1231 | } | |
1232 | ||
1233 | subset_list->tail = NULL; | |
1234 | } | |
1235 | ||
d541518b | 1236 | /* Parsing extension version. |
1080bf78 JW |
1237 | |
1238 | Return Value: | |
1239 | Points to the end of version | |
1240 | ||
1241 | Arguments: | |
d541518b | 1242 | `rps`: Hooks and status for parsing extensions. |
dcd709e0 | 1243 | `march`: Full ISA string. |
1080bf78 | 1244 | `p`: Curent parsing position. |
7ef19aa6 NC |
1245 | `major_version`: Parsed major version. |
1246 | `minor_version`: Parsed minor version. | |
1247 | `std_ext_p`: True if parsing standard extension. */ | |
1080bf78 JW |
1248 | |
1249 | static const char * | |
1250 | riscv_parsing_subset_version (riscv_parse_subset_t *rps, | |
1251 | const char *march, | |
1252 | const char *p, | |
7ef19aa6 NC |
1253 | int *major_version, |
1254 | int *minor_version, | |
1255 | bfd_boolean std_ext_p) | |
1080bf78 JW |
1256 | { |
1257 | bfd_boolean major_p = TRUE; | |
7ef19aa6 | 1258 | int version = 0; |
1080bf78 JW |
1259 | char np; |
1260 | ||
8f595e9b NC |
1261 | *major_version = 0; |
1262 | *minor_version = 0; | |
1263 | for (; *p; ++p) | |
1080bf78 JW |
1264 | { |
1265 | if (*p == 'p') | |
1266 | { | |
1267 | np = *(p + 1); | |
1268 | ||
1269 | if (!ISDIGIT (np)) | |
1270 | { | |
1271 | /* Might be beginning of `p` extension. */ | |
1272 | if (std_ext_p) | |
1273 | { | |
1274 | *major_version = version; | |
1275 | *minor_version = 0; | |
1276 | return p; | |
1277 | } | |
1278 | else | |
1279 | { | |
8f595e9b | 1280 | rps->error_handler |
d541518b | 1281 | (_("-march=%s: expect number after `%dp'"), |
8f595e9b | 1282 | march, version); |
1080bf78 JW |
1283 | return NULL; |
1284 | } | |
1285 | } | |
1286 | ||
8f595e9b | 1287 | *major_version = version; |
1080bf78 JW |
1288 | major_p = FALSE; |
1289 | version = 0; | |
1290 | } | |
1291 | else if (ISDIGIT (*p)) | |
1292 | version = (version * 10) + (*p - '0'); | |
1293 | else | |
1294 | break; | |
1295 | } | |
1296 | ||
1297 | if (major_p) | |
8f595e9b | 1298 | *major_version = version; |
1080bf78 | 1299 | else |
8f595e9b | 1300 | *minor_version = version; |
1080bf78 | 1301 | |
7ef19aa6 NC |
1302 | /* We can not find any version in string. */ |
1303 | if (*major_version == 0 && *minor_version == 0) | |
1304 | { | |
1305 | *major_version = RISCV_UNKNOWN_VERSION; | |
1306 | *minor_version = RISCV_UNKNOWN_VERSION; | |
1307 | } | |
1308 | ||
1080bf78 JW |
1309 | return p; |
1310 | } | |
1311 | ||
1312 | /* Return string which contain all supported standard extensions in | |
1313 | canonical order. */ | |
1314 | ||
1315 | const char * | |
1316 | riscv_supported_std_ext (void) | |
1317 | { | |
1318 | return "mafdqlcbjtpvn"; | |
1319 | } | |
1320 | ||
1321 | /* Parsing function for standard extensions. | |
1322 | ||
1323 | Return Value: | |
1324 | Points to the end of extensions. | |
1325 | ||
1326 | Arguments: | |
d541518b | 1327 | `rps`: Hooks and status for parsing extensions. |
dcd709e0 | 1328 | `march`: Full ISA string. |
1080bf78 JW |
1329 | `p`: Curent parsing position. */ |
1330 | ||
1331 | static const char * | |
1332 | riscv_parse_std_ext (riscv_parse_subset_t *rps, | |
8f595e9b NC |
1333 | const char *march, |
1334 | const char *p) | |
1080bf78 JW |
1335 | { |
1336 | const char *all_std_exts = riscv_supported_std_ext (); | |
1337 | const char *std_exts = all_std_exts; | |
7ef19aa6 NC |
1338 | int major_version; |
1339 | int minor_version; | |
d541518b | 1340 | char subset[2] = {0, 0}; |
1080bf78 JW |
1341 | |
1342 | /* First letter must start with i, e or g. */ | |
1343 | switch (*p) | |
1344 | { | |
1345 | case 'i': | |
d541518b | 1346 | p = riscv_parsing_subset_version (rps, march, ++p, |
8f595e9b | 1347 | &major_version, |
7ef19aa6 NC |
1348 | &minor_version, TRUE); |
1349 | riscv_parse_add_subset (rps, "i", | |
1350 | major_version, | |
dfe92496 | 1351 | minor_version, FALSE); |
1080bf78 JW |
1352 | break; |
1353 | ||
1354 | case 'e': | |
d541518b | 1355 | p = riscv_parsing_subset_version (rps, march, ++p, |
8f595e9b | 1356 | &major_version, |
7ef19aa6 NC |
1357 | &minor_version, TRUE); |
1358 | riscv_parse_add_subset (rps, "e", | |
1359 | major_version, | |
dfe92496 | 1360 | minor_version, FALSE); |
8f595e9b | 1361 | /* i-ext must be enabled. */ |
7ef19aa6 NC |
1362 | riscv_parse_add_subset (rps, "i", |
1363 | RISCV_UNKNOWN_VERSION, | |
dfe92496 | 1364 | RISCV_UNKNOWN_VERSION, FALSE); |
1080bf78 JW |
1365 | |
1366 | if (*rps->xlen > 32) | |
1367 | { | |
8f595e9b NC |
1368 | rps->error_handler |
1369 | (_("-march=%s: rv%de is not a valid base ISA"), | |
1370 | march, *rps->xlen); | |
1080bf78 JW |
1371 | return NULL; |
1372 | } | |
1080bf78 JW |
1373 | break; |
1374 | ||
1375 | case 'g': | |
d541518b | 1376 | p = riscv_parsing_subset_version (rps, march, ++p, |
8f595e9b | 1377 | &major_version, |
7ef19aa6 | 1378 | &minor_version, TRUE); |
8f595e9b | 1379 | /* i-ext must be enabled. */ |
7ef19aa6 NC |
1380 | riscv_parse_add_subset (rps, "i", |
1381 | RISCV_UNKNOWN_VERSION, | |
dfe92496 | 1382 | RISCV_UNKNOWN_VERSION, FALSE); |
00d4d1b0 | 1383 | /* g-ext is used to add the implicit extensions, but will |
dcd709e0 | 1384 | not be output to the ISA string. */ |
00d4d1b0 NC |
1385 | riscv_parse_add_subset (rps, "g", |
1386 | major_version, | |
1387 | minor_version, FALSE); | |
1080bf78 JW |
1388 | for ( ; *std_exts != 'q'; std_exts++) |
1389 | { | |
d541518b | 1390 | subset[0] = *std_exts; |
7ef19aa6 NC |
1391 | riscv_parse_add_subset (rps, subset, |
1392 | RISCV_UNKNOWN_VERSION, | |
dfe92496 | 1393 | RISCV_UNKNOWN_VERSION, FALSE); |
1080bf78 JW |
1394 | } |
1395 | break; | |
1396 | ||
1397 | default: | |
8f595e9b | 1398 | rps->error_handler |
d541518b NC |
1399 | (_("-march=%s: first ISA extension must be `e', `i' or `g'"), |
1400 | march); | |
1080bf78 JW |
1401 | return NULL; |
1402 | } | |
1403 | ||
8f595e9b | 1404 | while (p != NULL && *p != '\0') |
1080bf78 | 1405 | { |
5a1b31e1 | 1406 | if (*p == 'x' || *p == 's' || *p == 'h' || *p == 'z') |
1080bf78 JW |
1407 | break; |
1408 | ||
1409 | if (*p == '_') | |
1410 | { | |
1411 | p++; | |
1412 | continue; | |
1413 | } | |
1414 | ||
1080bf78 | 1415 | /* Checking canonical order. */ |
d541518b NC |
1416 | char std_ext = *p; |
1417 | while (*std_exts && std_ext != *std_exts) | |
1418 | std_exts++; | |
1080bf78 JW |
1419 | |
1420 | if (std_ext != *std_exts) | |
1421 | { | |
1422 | if (strchr (all_std_exts, std_ext) == NULL) | |
8f595e9b | 1423 | rps->error_handler |
d541518b NC |
1424 | (_("-march=%s: unknown standard ISA extension `%c'"), |
1425 | march, std_ext); | |
1080bf78 | 1426 | else |
8f595e9b | 1427 | rps->error_handler |
d541518b NC |
1428 | (_("-march=%s: standard ISA extension `%c' is not " |
1429 | "in canonical order"), march, std_ext); | |
1080bf78 JW |
1430 | return NULL; |
1431 | } | |
1432 | ||
1433 | std_exts++; | |
1080bf78 | 1434 | subset[0] = std_ext; |
d541518b | 1435 | p = riscv_parsing_subset_version (rps, march, ++p, |
8f595e9b | 1436 | &major_version, |
7ef19aa6 NC |
1437 | &minor_version, TRUE); |
1438 | riscv_parse_add_subset (rps, subset, | |
1439 | major_version, | |
dfe92496 | 1440 | minor_version, FALSE); |
1080bf78 | 1441 | } |
d541518b | 1442 | |
1080bf78 JW |
1443 | return p; |
1444 | } | |
1445 | ||
dcd709e0 | 1446 | /* Classify ARCH into one of riscv_isa_ext_class_t. */ |
1080bf78 | 1447 | |
403d1bd9 JW |
1448 | riscv_isa_ext_class_t |
1449 | riscv_get_prefix_class (const char *arch) | |
1450 | { | |
1451 | switch (*arch) | |
1452 | { | |
b5f998b2 | 1453 | case 's': return RV_ISA_CLASS_S; |
5a1b31e1 | 1454 | case 'h': return RV_ISA_CLASS_H; |
403d1bd9 JW |
1455 | case 'x': return RV_ISA_CLASS_X; |
1456 | case 'z': return RV_ISA_CLASS_Z; | |
1457 | default: return RV_ISA_CLASS_UNKNOWN; | |
1458 | } | |
1459 | } | |
1460 | ||
1461 | /* Structure describing parameters to use when parsing a particular | |
dcd709e0 | 1462 | riscv_isa_ext_class_t. One of these should be provided for each |
403d1bd9 | 1463 | possible class, except RV_ISA_CLASS_UNKNOWN. */ |
403d1bd9 JW |
1464 | typedef struct riscv_parse_config |
1465 | { | |
1466 | /* Class of the extension. */ | |
1467 | riscv_isa_ext_class_t class; | |
1468 | ||
d541518b | 1469 | /* Prefix string for error printing and internal parser usage. */ |
403d1bd9 JW |
1470 | const char *prefix; |
1471 | ||
d541518b NC |
1472 | /* Predicate which is used for checking whether this is a "known" |
1473 | extension. For 'x', it always returns true since they are by | |
403d1bd9 JW |
1474 | definition non-standard and cannot be known. */ |
1475 | bfd_boolean (*ext_valid_p) (const char *); | |
1476 | } riscv_parse_config_t; | |
1477 | ||
d541518b NC |
1478 | /* Parsing function for prefixed extensions. |
1479 | ||
1480 | Return Value: | |
1481 | Points to the end of extension. | |
1482 | ||
1483 | Arguments: | |
1484 | `rps`: Hooks and status for parsing extensions. | |
dcd709e0 | 1485 | `march`: Full ISA string. |
d541518b NC |
1486 | `p`: Curent parsing position. |
1487 | `config`: What class and predicate function to use for the | |
1488 | extension. */ | |
1080bf78 JW |
1489 | |
1490 | static const char * | |
403d1bd9 JW |
1491 | riscv_parse_prefixed_ext (riscv_parse_subset_t *rps, |
1492 | const char *march, | |
1493 | const char *p, | |
1494 | const riscv_parse_config_t *config) | |
1080bf78 | 1495 | { |
7ef19aa6 NC |
1496 | int major_version; |
1497 | int minor_version; | |
403d1bd9 JW |
1498 | const char *last_name; |
1499 | riscv_isa_ext_class_t class; | |
1080bf78 JW |
1500 | |
1501 | while (*p) | |
1502 | { | |
1503 | if (*p == '_') | |
1504 | { | |
1505 | p++; | |
1506 | continue; | |
1507 | } | |
1508 | ||
403d1bd9 JW |
1509 | /* Assert that the current extension specifier matches our parsing |
1510 | class. */ | |
1511 | class = riscv_get_prefix_class (p); | |
d541518b NC |
1512 | if (class != config->class |
1513 | || class == RV_ISA_CLASS_UNKNOWN) | |
1080bf78 JW |
1514 | break; |
1515 | ||
1516 | char *subset = xstrdup (p); | |
1517 | char *q = subset; | |
1518 | const char *end_of_version; | |
1519 | ||
1520 | while (*++q != '\0' && *q != '_' && !ISDIGIT (*q)) | |
1521 | ; | |
1522 | ||
1523 | end_of_version = | |
d541518b NC |
1524 | riscv_parsing_subset_version (rps, march, q, |
1525 | &major_version, | |
7ef19aa6 | 1526 | &minor_version, FALSE); |
1080bf78 JW |
1527 | *q = '\0'; |
1528 | ||
7ef19aa6 NC |
1529 | if (end_of_version == NULL) |
1530 | { | |
1531 | free (subset); | |
1532 | return NULL; | |
1533 | } | |
1534 | ||
d541518b | 1535 | /* Check that the prefix extension is known. |
403d1bd9 | 1536 | For 'x', anything goes but it cannot simply be 'x'. |
b5f998b2 | 1537 | For 's', it must be known from a list and cannot simply be 's'. |
5a1b31e1 | 1538 | For 'h', it must be known from a list and cannot simply be 'h'. |
b5f998b2 | 1539 | For 'z', it must be known from a list and cannot simply be 'z'. */ |
403d1bd9 JW |
1540 | |
1541 | /* Check that the extension name is well-formed. */ | |
1542 | if (!config->ext_valid_p (subset)) | |
1543 | { | |
1544 | rps->error_handler | |
d541518b | 1545 | (_("-march=%s: unknown %s ISA extension `%s'"), |
403d1bd9 JW |
1546 | march, config->prefix, subset); |
1547 | free (subset); | |
1548 | return NULL; | |
1549 | } | |
1550 | ||
d541518b | 1551 | /* Check that the extension isn't duplicate. */ |
403d1bd9 | 1552 | last_name = rps->subset_list->tail->name; |
403d1bd9 JW |
1553 | if (!strcasecmp (last_name, subset)) |
1554 | { | |
8f595e9b | 1555 | rps->error_handler |
d541518b | 1556 | (_("-march=%s: duplicate %s ISA extension `%s'"), |
8f595e9b | 1557 | march, config->prefix, subset); |
403d1bd9 JW |
1558 | free (subset); |
1559 | return NULL; | |
1560 | } | |
1561 | ||
d541518b | 1562 | /* Check that the extension is in alphabetical order. */ |
6729e2c2 | 1563 | if (riscv_compare_subsets (last_name, subset) > 0) |
403d1bd9 | 1564 | { |
8f595e9b | 1565 | rps->error_handler |
d541518b NC |
1566 | (_("-march=%s: %s ISA extension `%s' is not in alphabetical " |
1567 | "order. It must come before `%s'"), | |
8f595e9b | 1568 | march, config->prefix, subset, last_name); |
403d1bd9 JW |
1569 | free (subset); |
1570 | return NULL; | |
1571 | } | |
1572 | ||
7ef19aa6 NC |
1573 | riscv_parse_add_subset (rps, subset, |
1574 | major_version, | |
dfe92496 | 1575 | minor_version, FALSE); |
1080bf78 | 1576 | p += end_of_version - subset; |
e9cf3691 | 1577 | free (subset); |
1080bf78 JW |
1578 | |
1579 | if (*p != '\0' && *p != '_') | |
1580 | { | |
d541518b NC |
1581 | rps->error_handler |
1582 | (_("-march=%s: %s ISA extension must separate with _"), | |
1583 | march, config->prefix); | |
1080bf78 JW |
1584 | return NULL; |
1585 | } | |
1586 | } | |
1587 | ||
1588 | return p; | |
1589 | } | |
1590 | ||
d541518b NC |
1591 | /* Lists of prefixed class extensions that binutils should know about. |
1592 | Whether or not a particular entry is in these lists will dictate if | |
1593 | gas/ld will accept its presence in the architecture string. | |
403d1bd9 | 1594 | |
d541518b NC |
1595 | Please add the extensions to the lists in lower case. However, keep |
1596 | these subsets in alphabetical order in these tables is recommended, | |
1597 | although there is no impact on the current implementation. */ | |
403d1bd9 JW |
1598 | |
1599 | static const char * const riscv_std_z_ext_strtab[] = | |
d541518b | 1600 | { |
24075dcc | 1601 | "zicsr", "zifencei", "zihintpause", NULL |
d541518b | 1602 | }; |
403d1bd9 JW |
1603 | |
1604 | static const char * const riscv_std_s_ext_strtab[] = | |
d541518b NC |
1605 | { |
1606 | NULL | |
1607 | }; | |
403d1bd9 | 1608 | |
5a1b31e1 NC |
1609 | static const char * const riscv_std_h_ext_strtab[] = |
1610 | { | |
1611 | NULL | |
1612 | }; | |
1613 | ||
d541518b NC |
1614 | /* For the extension `ext`, search through the list of known extensions |
1615 | `known_exts` for a match, and return TRUE if found. */ | |
403d1bd9 JW |
1616 | |
1617 | static bfd_boolean | |
1618 | riscv_multi_letter_ext_valid_p (const char *ext, | |
1619 | const char *const *known_exts) | |
1620 | { | |
2d0e1217 AM |
1621 | size_t i; |
1622 | ||
1623 | for (i = 0; known_exts[i]; ++i) | |
1624 | if (!strcmp (ext, known_exts[i])) | |
1625 | return TRUE; | |
403d1bd9 JW |
1626 | |
1627 | return FALSE; | |
1628 | } | |
1629 | ||
1630 | /* Predicator function for x-prefixed extensions. | |
1631 | Anything goes, except the literal 'x'. */ | |
1632 | ||
1633 | static bfd_boolean | |
1634 | riscv_ext_x_valid_p (const char *arg) | |
1635 | { | |
1636 | if (!strcasecmp (arg, "x")) | |
1637 | return FALSE; | |
1638 | ||
1639 | return TRUE; | |
1640 | } | |
1641 | ||
1642 | /* Predicator functions for z-prefixed extensions. | |
1643 | Only known z-extensions are permitted. */ | |
1644 | ||
1645 | static bfd_boolean | |
1646 | riscv_ext_z_valid_p (const char *arg) | |
1647 | { | |
1648 | return riscv_multi_letter_ext_valid_p (arg, riscv_std_z_ext_strtab); | |
1649 | } | |
1650 | ||
1651 | /* Predicator function for 's' prefixed extensions. | |
d541518b | 1652 | Only known s-extensions are permitted. */ |
403d1bd9 JW |
1653 | |
1654 | static bfd_boolean | |
1655 | riscv_ext_s_valid_p (const char *arg) | |
1656 | { | |
1657 | return riscv_multi_letter_ext_valid_p (arg, riscv_std_s_ext_strtab); | |
1658 | } | |
1659 | ||
5a1b31e1 NC |
1660 | /* Predicator function for 'h' prefixed extensions. |
1661 | Only known h-extensions are permitted. */ | |
1662 | ||
1663 | static bfd_boolean | |
1664 | riscv_ext_h_valid_p (const char *arg) | |
1665 | { | |
1666 | return riscv_multi_letter_ext_valid_p (arg, riscv_std_h_ext_strtab); | |
1667 | } | |
1668 | ||
d541518b NC |
1669 | /* Parsing order of the prefixed extensions that is specified by |
1670 | the ISA spec. */ | |
403d1bd9 JW |
1671 | static const riscv_parse_config_t parse_config[] = |
1672 | { | |
d541518b | 1673 | {RV_ISA_CLASS_S, "s", riscv_ext_s_valid_p}, |
5a1b31e1 | 1674 | {RV_ISA_CLASS_H, "h", riscv_ext_h_valid_p}, |
d541518b NC |
1675 | {RV_ISA_CLASS_Z, "z", riscv_ext_z_valid_p}, |
1676 | {RV_ISA_CLASS_X, "x", riscv_ext_x_valid_p}, | |
1677 | {RV_ISA_CLASS_UNKNOWN, NULL, NULL} | |
403d1bd9 JW |
1678 | }; |
1679 | ||
dfe92496 NC |
1680 | /* Init the riscv_ext_order array. */ |
1681 | ||
1682 | static void | |
1683 | riscv_init_ext_order (void) | |
1684 | { | |
1685 | static bfd_boolean inited = FALSE; | |
1686 | const char *std_base_exts = "eig"; | |
1687 | const char *std_remain_exts = riscv_supported_std_ext (); | |
1688 | const char *ext; | |
1689 | unsigned int i; | |
1690 | int order; | |
1691 | ||
1692 | if (inited) | |
1693 | return; | |
1694 | ||
dcd709e0 | 1695 | /* The orders of all standard extensions are positive. */ |
dfe92496 NC |
1696 | order = 1; |
1697 | ||
1698 | /* Init the standard base extensions first. */ | |
1699 | for (ext = std_base_exts; *ext; ext++) | |
1700 | riscv_ext_order[(*ext - 'a')] = order++; | |
1701 | ||
1702 | /* Init the standard remaining extensions. */ | |
1703 | for (ext = std_remain_exts; *ext; ext++) | |
1704 | riscv_ext_order[(*ext - 'a')] = order++; | |
1705 | ||
dcd709e0 | 1706 | /* Init the order for prefixed keywords. The orders are negative. */ |
dfe92496 NC |
1707 | order = -1; |
1708 | for (i = 0; parse_config[i].class != RV_ISA_CLASS_UNKNOWN; i++) | |
1709 | { | |
1710 | ext = parse_config[i].prefix; | |
1711 | riscv_ext_order[(*ext - 'a')] = order--; | |
1712 | } | |
1713 | ||
1714 | inited = TRUE; | |
1715 | } | |
1716 | ||
dcd709e0 | 1717 | /* Add the implicit extensions. */ |
dfe92496 NC |
1718 | |
1719 | static void | |
1720 | riscv_parse_add_implicit_subsets (riscv_parse_subset_t *rps) | |
1721 | { | |
1722 | riscv_subset_t *subset = NULL; | |
1723 | ||
1724 | /* Add the zicsr and zifencei only when the i's version less than 2.1. */ | |
1725 | if ((riscv_lookup_subset (rps->subset_list, "i", &subset)) | |
1726 | && (subset->major_version < 2 | |
1727 | || (subset->major_version == 2 | |
1728 | && subset->minor_version < 1))) | |
1729 | { | |
1730 | riscv_parse_add_subset (rps, "zicsr", | |
1731 | RISCV_UNKNOWN_VERSION, | |
1732 | RISCV_UNKNOWN_VERSION, TRUE); | |
1733 | riscv_parse_add_subset (rps, "zifencei", | |
1734 | RISCV_UNKNOWN_VERSION, | |
1735 | RISCV_UNKNOWN_VERSION, TRUE); | |
1736 | } | |
1737 | ||
1738 | if ((riscv_lookup_subset (rps->subset_list, "q", &subset))) | |
1739 | { | |
1740 | riscv_parse_add_subset (rps, "d", | |
1741 | RISCV_UNKNOWN_VERSION, | |
1742 | RISCV_UNKNOWN_VERSION, TRUE); | |
1743 | riscv_parse_add_subset (rps, "f", | |
1744 | RISCV_UNKNOWN_VERSION, | |
1745 | RISCV_UNKNOWN_VERSION, TRUE); | |
1746 | riscv_parse_add_subset (rps, "zicsr", | |
1747 | RISCV_UNKNOWN_VERSION, | |
1748 | RISCV_UNKNOWN_VERSION, TRUE); | |
1749 | } | |
1750 | else if ((riscv_lookup_subset (rps->subset_list, "d", &subset))) | |
1751 | { | |
1752 | riscv_parse_add_subset (rps, "f", | |
1753 | RISCV_UNKNOWN_VERSION, | |
1754 | RISCV_UNKNOWN_VERSION, TRUE); | |
1755 | riscv_parse_add_subset (rps, "zicsr", | |
1756 | RISCV_UNKNOWN_VERSION, | |
1757 | RISCV_UNKNOWN_VERSION, TRUE); | |
1758 | } | |
1759 | else if ((riscv_lookup_subset (rps->subset_list, "f", &subset))) | |
1760 | riscv_parse_add_subset (rps, "zicsr", | |
1761 | RISCV_UNKNOWN_VERSION, | |
1762 | RISCV_UNKNOWN_VERSION, TRUE); | |
00d4d1b0 NC |
1763 | |
1764 | if ((riscv_lookup_subset (rps->subset_list, "g", &subset))) | |
1765 | { | |
1766 | riscv_parse_add_subset (rps, "zicsr", | |
1767 | RISCV_UNKNOWN_VERSION, | |
1768 | RISCV_UNKNOWN_VERSION, TRUE); | |
1769 | riscv_parse_add_subset (rps, "zifencei", | |
1770 | RISCV_UNKNOWN_VERSION, | |
1771 | RISCV_UNKNOWN_VERSION, TRUE); | |
1772 | } | |
dfe92496 NC |
1773 | } |
1774 | ||
dcd709e0 | 1775 | /* Function for parsing ISA string. |
1080bf78 JW |
1776 | |
1777 | Return Value: | |
1778 | Return TRUE on success. | |
1779 | ||
1780 | Arguments: | |
d541518b | 1781 | `rps`: Hooks and status for parsing extensions. |
dcd709e0 | 1782 | `arch`: Full ISA string. */ |
1080bf78 JW |
1783 | |
1784 | bfd_boolean | |
1785 | riscv_parse_subset (riscv_parse_subset_t *rps, | |
1786 | const char *arch) | |
1787 | { | |
dfe92496 | 1788 | riscv_subset_t *subset = NULL; |
e8d4709e | 1789 | const char *p; |
effc14f5 | 1790 | size_t i; |
7ef19aa6 | 1791 | bfd_boolean no_conflict = TRUE; |
1080bf78 | 1792 | |
e8d4709e NC |
1793 | for (p = arch; *p != '\0'; p++) |
1794 | { | |
1795 | if (ISUPPER (*p)) | |
1796 | { | |
1797 | rps->error_handler | |
1798 | (_("-march=%s: ISA string cannot contain uppercase letters"), | |
1799 | arch); | |
1800 | return FALSE; | |
1801 | } | |
1802 | } | |
1803 | ||
1804 | p = arch; | |
1080bf78 JW |
1805 | if (strncmp (p, "rv32", 4) == 0) |
1806 | { | |
1807 | *rps->xlen = 32; | |
1808 | p += 4; | |
1809 | } | |
1810 | else if (strncmp (p, "rv64", 4) == 0) | |
1811 | { | |
1812 | *rps->xlen = 64; | |
1813 | p += 4; | |
1814 | } | |
1815 | else | |
1816 | { | |
dcd709e0 NC |
1817 | /* ISA string shouldn't be NULL or empty here. However, |
1818 | it might be empty only when we failed to merge the ISA | |
72bd6912 KC |
1819 | string in the riscv_merge_attributes. We have already |
1820 | issued the correct error message in another side, so do | |
dcd709e0 | 1821 | not issue this error when the ISA string is empty. */ |
72bd6912 KC |
1822 | if (strlen (arch)) |
1823 | rps->error_handler ( | |
1824 | _("-march=%s: ISA string must begin with rv32 or rv64"), | |
1825 | arch); | |
1080bf78 JW |
1826 | return FALSE; |
1827 | } | |
1828 | ||
dfe92496 NC |
1829 | /* Init the riscv_ext_order array to compare the order of extensions |
1830 | quickly. */ | |
1831 | riscv_init_ext_order (); | |
1832 | ||
1080bf78 JW |
1833 | /* Parsing standard extension. */ |
1834 | p = riscv_parse_std_ext (rps, arch, p); | |
1835 | ||
1836 | if (p == NULL) | |
1837 | return FALSE; | |
1838 | ||
403d1bd9 | 1839 | /* Parse the different classes of extensions in the specified order. */ |
d541518b NC |
1840 | for (i = 0; i < ARRAY_SIZE (parse_config); ++i) |
1841 | { | |
1842 | p = riscv_parse_prefixed_ext (rps, arch, p, &parse_config[i]); | |
1080bf78 | 1843 | |
d541518b NC |
1844 | if (p == NULL) |
1845 | return FALSE; | |
1846 | } | |
1080bf78 JW |
1847 | |
1848 | if (*p != '\0') | |
1849 | { | |
8f595e9b | 1850 | rps->error_handler (_("-march=%s: unexpected ISA string at end: %s"), |
1080bf78 JW |
1851 | arch, p); |
1852 | return FALSE; | |
1853 | } | |
1854 | ||
dfe92496 NC |
1855 | /* Finally add implicit extensions according to the current |
1856 | extensions. */ | |
1857 | riscv_parse_add_implicit_subsets (rps); | |
1858 | ||
d541518b | 1859 | /* Check the conflicts. */ |
dfe92496 NC |
1860 | if (riscv_lookup_subset (rps->subset_list, "e", &subset) |
1861 | && riscv_lookup_subset (rps->subset_list, "f", &subset)) | |
1080bf78 | 1862 | { |
8f595e9b NC |
1863 | rps->error_handler |
1864 | (_("-march=%s: rv32e does not support the `f' extension"), | |
1865 | arch); | |
7ef19aa6 | 1866 | no_conflict = FALSE; |
1080bf78 | 1867 | } |
dfe92496 NC |
1868 | if (riscv_lookup_subset (rps->subset_list, "q", &subset) |
1869 | && *rps->xlen < 64) | |
d541518b NC |
1870 | { |
1871 | rps->error_handler | |
1872 | (_("-march=%s: rv32 does not support the `q' extension"), | |
1873 | arch); | |
7ef19aa6 | 1874 | no_conflict = FALSE; |
d541518b | 1875 | } |
7ef19aa6 | 1876 | return no_conflict; |
1080bf78 | 1877 | } |
2dc8dd17 JW |
1878 | |
1879 | /* Return the number of digits for the input. */ | |
1880 | ||
8f595e9b | 1881 | size_t |
2dc8dd17 JW |
1882 | riscv_estimate_digit (unsigned num) |
1883 | { | |
1884 | size_t digit = 0; | |
1885 | if (num == 0) | |
1886 | return 1; | |
1887 | ||
1888 | for (digit = 0; num ; num /= 10) | |
1889 | digit++; | |
1890 | ||
1891 | return digit; | |
1892 | } | |
1893 | ||
1894 | /* Auxiliary function to estimate string length of subset list. */ | |
1895 | ||
1896 | static size_t | |
1897 | riscv_estimate_arch_strlen1 (const riscv_subset_t *subset) | |
1898 | { | |
1899 | if (subset == NULL) | |
1900 | return 6; /* For rv32/rv64/rv128 and string terminator. */ | |
1901 | ||
1902 | return riscv_estimate_arch_strlen1 (subset->next) | |
1903 | + strlen (subset->name) | |
1904 | + riscv_estimate_digit (subset->major_version) | |
dcd709e0 | 1905 | + 1 /* For version seperator 'p'. */ |
2dc8dd17 JW |
1906 | + riscv_estimate_digit (subset->minor_version) |
1907 | + 1 /* For underscore. */; | |
1908 | } | |
1909 | ||
1910 | /* Estimate the string length of this subset list. */ | |
1911 | ||
1912 | static size_t | |
1913 | riscv_estimate_arch_strlen (const riscv_subset_list_t *subset_list) | |
1914 | { | |
1915 | return riscv_estimate_arch_strlen1 (subset_list->head); | |
1916 | } | |
1917 | ||
1918 | /* Auxiliary function to convert subset info to string. */ | |
1919 | ||
1920 | static void | |
1921 | riscv_arch_str1 (riscv_subset_t *subset, | |
1922 | char *attr_str, char *buf, size_t bufsz) | |
1923 | { | |
1924 | const char *underline = "_"; | |
729a5353 | 1925 | riscv_subset_t *subset_t = subset; |
2dc8dd17 | 1926 | |
729a5353 | 1927 | if (subset_t == NULL) |
2dc8dd17 JW |
1928 | return; |
1929 | ||
dcd709e0 | 1930 | /* No underline between rvXX and i/e. */ |
729a5353 NC |
1931 | if ((strcasecmp (subset_t->name, "i") == 0) |
1932 | || (strcasecmp (subset_t->name, "e") == 0)) | |
2dc8dd17 JW |
1933 | underline = ""; |
1934 | ||
1935 | snprintf (buf, bufsz, "%s%s%dp%d", | |
1936 | underline, | |
729a5353 NC |
1937 | subset_t->name, |
1938 | subset_t->major_version, | |
1939 | subset_t->minor_version); | |
2dc8dd17 JW |
1940 | |
1941 | strncat (attr_str, buf, bufsz); | |
1942 | ||
729a5353 NC |
1943 | /* Skip 'i' extension after 'e', or skip extensions which |
1944 | versions are unknown. */ | |
1945 | while (subset_t->next | |
1946 | && ((strcmp (subset_t->name, "e") == 0 | |
1947 | && strcmp (subset_t->next->name, "i") == 0) | |
1948 | || subset_t->next->major_version == RISCV_UNKNOWN_VERSION | |
1949 | || subset_t->next->minor_version == RISCV_UNKNOWN_VERSION)) | |
1950 | subset_t = subset_t->next; | |
1951 | ||
1952 | riscv_arch_str1 (subset_t->next, attr_str, buf, bufsz); | |
2dc8dd17 JW |
1953 | } |
1954 | ||
dcd709e0 | 1955 | /* Convert subset information into string with explicit versions. */ |
2dc8dd17 JW |
1956 | |
1957 | char * | |
1958 | riscv_arch_str (unsigned xlen, const riscv_subset_list_t *subset) | |
1959 | { | |
1960 | size_t arch_str_len = riscv_estimate_arch_strlen (subset); | |
1961 | char *attr_str = xmalloc (arch_str_len); | |
1962 | char *buf = xmalloc (arch_str_len); | |
1963 | ||
1964 | snprintf (attr_str, arch_str_len, "rv%u", xlen); | |
1965 | ||
1966 | riscv_arch_str1 (subset->head, attr_str, buf, arch_str_len); | |
1967 | free (buf); | |
1968 | ||
1969 | return attr_str; | |
1970 | } |