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e23eba97 | 1 | /* RISC-V-specific support for ELF. |
a2c58332 | 2 | Copyright (C) 2011-2022 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" |
e23eba97 NC |
32 | |
33 | #define MINUS_ONE ((bfd_vma)0 - 1) | |
34 | ||
57593436 KLC |
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 | ||
e23eba97 NC |
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 | 3, /* size */ | |
50 | 0, /* bitsize */ | |
0a1b45a2 | 51 | false, /* pc_relative */ |
e23eba97 NC |
52 | 0, /* bitpos */ |
53 | complain_overflow_dont, /* complain_on_overflow */ | |
54 | bfd_elf_generic_reloc, /* special_function */ | |
55 | "R_RISCV_NONE", /* name */ | |
0a1b45a2 | 56 | false, /* partial_inplace */ |
e23eba97 NC |
57 | 0, /* src_mask */ |
58 | 0, /* dst_mask */ | |
0a1b45a2 | 59 | false), /* pcrel_offset */ |
e23eba97 NC |
60 | |
61 | /* 32 bit relocation. */ | |
62 | HOWTO (R_RISCV_32, /* type */ | |
63 | 0, /* rightshift */ | |
64 | 2, /* size */ | |
65 | 32, /* bitsize */ | |
0a1b45a2 | 66 | false, /* pc_relative */ |
e23eba97 NC |
67 | 0, /* bitpos */ |
68 | complain_overflow_dont, /* complain_on_overflow */ | |
69 | bfd_elf_generic_reloc, /* special_function */ | |
70 | "R_RISCV_32", /* name */ | |
0a1b45a2 | 71 | false, /* partial_inplace */ |
e23eba97 | 72 | 0, /* src_mask */ |
b1b11e92 | 73 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 74 | false), /* pcrel_offset */ |
e23eba97 NC |
75 | |
76 | /* 64 bit relocation. */ | |
77 | HOWTO (R_RISCV_64, /* type */ | |
78 | 0, /* rightshift */ | |
79 | 4, /* size */ | |
80 | 64, /* bitsize */ | |
0a1b45a2 | 81 | false, /* pc_relative */ |
e23eba97 NC |
82 | 0, /* bitpos */ |
83 | complain_overflow_dont, /* complain_on_overflow */ | |
84 | bfd_elf_generic_reloc, /* special_function */ | |
85 | "R_RISCV_64", /* name */ | |
0a1b45a2 | 86 | false, /* partial_inplace */ |
e23eba97 NC |
87 | 0, /* src_mask */ |
88 | MINUS_ONE, /* dst_mask */ | |
0a1b45a2 | 89 | false), /* pcrel_offset */ |
e23eba97 NC |
90 | |
91 | /* Relocation against a local symbol in a shared object. */ | |
92 | HOWTO (R_RISCV_RELATIVE, /* type */ | |
93 | 0, /* rightshift */ | |
94 | 2, /* size */ | |
95 | 32, /* bitsize */ | |
0a1b45a2 | 96 | false, /* pc_relative */ |
e23eba97 NC |
97 | 0, /* bitpos */ |
98 | complain_overflow_dont, /* complain_on_overflow */ | |
99 | bfd_elf_generic_reloc, /* special_function */ | |
100 | "R_RISCV_RELATIVE", /* name */ | |
0a1b45a2 | 101 | false, /* partial_inplace */ |
e23eba97 | 102 | 0, /* src_mask */ |
b1b11e92 | 103 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 104 | false), /* pcrel_offset */ |
e23eba97 NC |
105 | |
106 | HOWTO (R_RISCV_COPY, /* type */ | |
107 | 0, /* rightshift */ | |
108 | 0, /* this one is variable size */ | |
109 | 0, /* bitsize */ | |
0a1b45a2 | 110 | false, /* pc_relative */ |
e23eba97 NC |
111 | 0, /* bitpos */ |
112 | complain_overflow_bitfield, /* complain_on_overflow */ | |
113 | bfd_elf_generic_reloc, /* special_function */ | |
114 | "R_RISCV_COPY", /* name */ | |
0a1b45a2 | 115 | false, /* partial_inplace */ |
07d6d2b8 AM |
116 | 0, /* src_mask */ |
117 | 0, /* dst_mask */ | |
0a1b45a2 | 118 | false), /* pcrel_offset */ |
e23eba97 NC |
119 | |
120 | HOWTO (R_RISCV_JUMP_SLOT, /* type */ | |
121 | 0, /* rightshift */ | |
122 | 4, /* size */ | |
123 | 64, /* bitsize */ | |
0a1b45a2 | 124 | false, /* pc_relative */ |
e23eba97 NC |
125 | 0, /* bitpos */ |
126 | complain_overflow_bitfield, /* complain_on_overflow */ | |
127 | bfd_elf_generic_reloc, /* special_function */ | |
128 | "R_RISCV_JUMP_SLOT", /* name */ | |
0a1b45a2 | 129 | false, /* partial_inplace */ |
07d6d2b8 AM |
130 | 0, /* src_mask */ |
131 | 0, /* dst_mask */ | |
0a1b45a2 | 132 | false), /* pcrel_offset */ |
e23eba97 NC |
133 | |
134 | /* Dynamic TLS relocations. */ | |
135 | HOWTO (R_RISCV_TLS_DTPMOD32, /* type */ | |
136 | 0, /* rightshift */ | |
b1b11e92 | 137 | 2, /* size */ |
e23eba97 | 138 | 32, /* bitsize */ |
0a1b45a2 | 139 | false, /* pc_relative */ |
e23eba97 NC |
140 | 0, /* bitpos */ |
141 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 142 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 143 | "R_RISCV_TLS_DTPMOD32", /* name */ |
0a1b45a2 | 144 | false, /* partial_inplace */ |
1d65abb5 | 145 | 0, /* src_mask */ |
b1b11e92 | 146 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 147 | false), /* pcrel_offset */ |
e23eba97 NC |
148 | |
149 | HOWTO (R_RISCV_TLS_DTPMOD64, /* type */ | |
150 | 0, /* rightshift */ | |
151 | 4, /* size */ | |
152 | 64, /* bitsize */ | |
0a1b45a2 | 153 | false, /* pc_relative */ |
e23eba97 NC |
154 | 0, /* bitpos */ |
155 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 156 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 157 | "R_RISCV_TLS_DTPMOD64", /* name */ |
0a1b45a2 | 158 | false, /* partial_inplace */ |
1d65abb5 | 159 | 0, /* src_mask */ |
e23eba97 | 160 | MINUS_ONE, /* dst_mask */ |
0a1b45a2 | 161 | false), /* pcrel_offset */ |
e23eba97 NC |
162 | |
163 | HOWTO (R_RISCV_TLS_DTPREL32, /* type */ | |
164 | 0, /* rightshift */ | |
b1b11e92 | 165 | 2, /* size */ |
e23eba97 | 166 | 32, /* bitsize */ |
0a1b45a2 | 167 | false, /* pc_relative */ |
e23eba97 NC |
168 | 0, /* bitpos */ |
169 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 170 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 171 | "R_RISCV_TLS_DTPREL32", /* name */ |
0a1b45a2 | 172 | true, /* partial_inplace */ |
1d65abb5 | 173 | 0, /* src_mask */ |
b1b11e92 | 174 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 175 | false), /* pcrel_offset */ |
e23eba97 NC |
176 | |
177 | HOWTO (R_RISCV_TLS_DTPREL64, /* type */ | |
178 | 0, /* rightshift */ | |
179 | 4, /* size */ | |
180 | 64, /* bitsize */ | |
0a1b45a2 | 181 | false, /* pc_relative */ |
e23eba97 NC |
182 | 0, /* bitpos */ |
183 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 184 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 185 | "R_RISCV_TLS_DTPREL64", /* name */ |
0a1b45a2 | 186 | true, /* partial_inplace */ |
1d65abb5 | 187 | 0, /* src_mask */ |
e23eba97 | 188 | MINUS_ONE, /* dst_mask */ |
0a1b45a2 | 189 | false), /* pcrel_offset */ |
e23eba97 NC |
190 | |
191 | HOWTO (R_RISCV_TLS_TPREL32, /* type */ | |
192 | 0, /* rightshift */ | |
193 | 2, /* size */ | |
194 | 32, /* bitsize */ | |
0a1b45a2 | 195 | false, /* pc_relative */ |
e23eba97 NC |
196 | 0, /* bitpos */ |
197 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 198 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 199 | "R_RISCV_TLS_TPREL32", /* name */ |
0a1b45a2 | 200 | false, /* partial_inplace */ |
1d65abb5 | 201 | 0, /* src_mask */ |
b1b11e92 | 202 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 203 | false), /* pcrel_offset */ |
e23eba97 NC |
204 | |
205 | HOWTO (R_RISCV_TLS_TPREL64, /* type */ | |
206 | 0, /* rightshift */ | |
207 | 4, /* size */ | |
208 | 64, /* bitsize */ | |
0a1b45a2 | 209 | false, /* pc_relative */ |
e23eba97 NC |
210 | 0, /* bitpos */ |
211 | complain_overflow_dont, /* complain_on_overflow */ | |
07d6d2b8 | 212 | bfd_elf_generic_reloc, /* special_function */ |
e23eba97 | 213 | "R_RISCV_TLS_TPREL64", /* name */ |
0a1b45a2 | 214 | false, /* partial_inplace */ |
1d65abb5 | 215 | 0, /* src_mask */ |
e23eba97 | 216 | MINUS_ONE, /* dst_mask */ |
0a1b45a2 | 217 | false), /* pcrel_offset */ |
e23eba97 NC |
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 | 2, /* size */ | |
229 | 32, /* bitsize */ | |
0a1b45a2 | 230 | true, /* pc_relative */ |
e23eba97 NC |
231 | 0, /* bitpos */ |
232 | complain_overflow_signed, /* complain_on_overflow */ | |
233 | bfd_elf_generic_reloc, /* special_function */ | |
234 | "R_RISCV_BRANCH", /* name */ | |
0a1b45a2 | 235 | false, /* partial_inplace */ |
e23eba97 | 236 | 0, /* src_mask */ |
5a9f5403 | 237 | ENCODE_BTYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 238 | true), /* pcrel_offset */ |
e23eba97 NC |
239 | |
240 | /* 20-bit PC-relative jump offset. */ | |
241 | HOWTO (R_RISCV_JAL, /* type */ | |
242 | 0, /* rightshift */ | |
243 | 2, /* size */ | |
244 | 32, /* bitsize */ | |
0a1b45a2 | 245 | true, /* pc_relative */ |
e23eba97 NC |
246 | 0, /* bitpos */ |
247 | complain_overflow_dont, /* complain_on_overflow */ | |
e23eba97 NC |
248 | bfd_elf_generic_reloc, /* special_function */ |
249 | "R_RISCV_JAL", /* name */ | |
0a1b45a2 | 250 | false, /* partial_inplace */ |
e23eba97 | 251 | 0, /* src_mask */ |
5a9f5403 | 252 | ENCODE_JTYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 253 | true), /* pcrel_offset */ |
e23eba97 NC |
254 | |
255 | /* 32-bit PC-relative function call (AUIPC/JALR). */ | |
256 | HOWTO (R_RISCV_CALL, /* type */ | |
257 | 0, /* rightshift */ | |
b1b11e92 | 258 | 4, /* size */ |
e23eba97 | 259 | 64, /* bitsize */ |
0a1b45a2 | 260 | true, /* pc_relative */ |
e23eba97 NC |
261 | 0, /* bitpos */ |
262 | complain_overflow_dont, /* complain_on_overflow */ | |
263 | bfd_elf_generic_reloc, /* special_function */ | |
264 | "R_RISCV_CALL", /* name */ | |
0a1b45a2 | 265 | false, /* partial_inplace */ |
e23eba97 NC |
266 | 0, /* src_mask */ |
267 | ENCODE_UTYPE_IMM (-1U) | ((bfd_vma) ENCODE_ITYPE_IMM (-1U) << 32), | |
268 | /* dst_mask */ | |
0a1b45a2 | 269 | true), /* pcrel_offset */ |
e23eba97 | 270 | |
1d65abb5 | 271 | /* Like R_RISCV_CALL, but not locally binding. */ |
e23eba97 NC |
272 | HOWTO (R_RISCV_CALL_PLT, /* type */ |
273 | 0, /* rightshift */ | |
b1b11e92 | 274 | 4, /* size */ |
e23eba97 | 275 | 64, /* bitsize */ |
0a1b45a2 | 276 | true, /* pc_relative */ |
e23eba97 NC |
277 | 0, /* bitpos */ |
278 | complain_overflow_dont, /* complain_on_overflow */ | |
279 | bfd_elf_generic_reloc, /* special_function */ | |
280 | "R_RISCV_CALL_PLT", /* name */ | |
0a1b45a2 | 281 | false, /* partial_inplace */ |
e23eba97 NC |
282 | 0, /* src_mask */ |
283 | ENCODE_UTYPE_IMM (-1U) | ((bfd_vma) ENCODE_ITYPE_IMM (-1U) << 32), | |
284 | /* dst_mask */ | |
0a1b45a2 | 285 | true), /* pcrel_offset */ |
e23eba97 NC |
286 | |
287 | /* High 20 bits of 32-bit PC-relative GOT access. */ | |
288 | HOWTO (R_RISCV_GOT_HI20, /* type */ | |
289 | 0, /* rightshift */ | |
290 | 2, /* size */ | |
291 | 32, /* bitsize */ | |
0a1b45a2 | 292 | true, /* pc_relative */ |
e23eba97 NC |
293 | 0, /* bitpos */ |
294 | complain_overflow_dont, /* complain_on_overflow */ | |
295 | bfd_elf_generic_reloc, /* special_function */ | |
296 | "R_RISCV_GOT_HI20", /* name */ | |
0a1b45a2 | 297 | false, /* partial_inplace */ |
e23eba97 NC |
298 | 0, /* src_mask */ |
299 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 300 | false), /* pcrel_offset */ |
e23eba97 NC |
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 | 2, /* size */ | |
306 | 32, /* bitsize */ | |
0a1b45a2 | 307 | true, /* pc_relative */ |
e23eba97 NC |
308 | 0, /* bitpos */ |
309 | complain_overflow_dont, /* complain_on_overflow */ | |
310 | bfd_elf_generic_reloc, /* special_function */ | |
311 | "R_RISCV_TLS_GOT_HI20", /* name */ | |
0a1b45a2 | 312 | false, /* partial_inplace */ |
e23eba97 NC |
313 | 0, /* src_mask */ |
314 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 315 | false), /* pcrel_offset */ |
e23eba97 NC |
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 | 2, /* size */ | |
321 | 32, /* bitsize */ | |
0a1b45a2 | 322 | true, /* pc_relative */ |
e23eba97 NC |
323 | 0, /* bitpos */ |
324 | complain_overflow_dont, /* complain_on_overflow */ | |
325 | bfd_elf_generic_reloc, /* special_function */ | |
326 | "R_RISCV_TLS_GD_HI20", /* name */ | |
0a1b45a2 | 327 | false, /* partial_inplace */ |
e23eba97 NC |
328 | 0, /* src_mask */ |
329 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 330 | false), /* pcrel_offset */ |
e23eba97 NC |
331 | |
332 | /* High 20 bits of 32-bit PC-relative reference. */ | |
333 | HOWTO (R_RISCV_PCREL_HI20, /* type */ | |
334 | 0, /* rightshift */ | |
335 | 2, /* size */ | |
336 | 32, /* bitsize */ | |
0a1b45a2 | 337 | true, /* pc_relative */ |
e23eba97 NC |
338 | 0, /* bitpos */ |
339 | complain_overflow_dont, /* complain_on_overflow */ | |
340 | bfd_elf_generic_reloc, /* special_function */ | |
341 | "R_RISCV_PCREL_HI20", /* name */ | |
0a1b45a2 | 342 | false, /* partial_inplace */ |
e23eba97 NC |
343 | 0, /* src_mask */ |
344 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 345 | true), /* pcrel_offset */ |
e23eba97 NC |
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 | 2, /* size */ | |
351 | 32, /* bitsize */ | |
0a1b45a2 | 352 | false, /* pc_relative */ |
e23eba97 NC |
353 | 0, /* bitpos */ |
354 | complain_overflow_dont, /* complain_on_overflow */ | |
355 | bfd_elf_generic_reloc, /* special_function */ | |
356 | "R_RISCV_PCREL_LO12_I", /* name */ | |
0a1b45a2 | 357 | false, /* partial_inplace */ |
e23eba97 NC |
358 | 0, /* src_mask */ |
359 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 360 | false), /* pcrel_offset */ |
e23eba97 NC |
361 | |
362 | /* Low 12 bits of a 32-bit PC-relative store. */ | |
363 | HOWTO (R_RISCV_PCREL_LO12_S, /* type */ | |
364 | 0, /* rightshift */ | |
365 | 2, /* size */ | |
366 | 32, /* bitsize */ | |
0a1b45a2 | 367 | false, /* pc_relative */ |
e23eba97 NC |
368 | 0, /* bitpos */ |
369 | complain_overflow_dont, /* complain_on_overflow */ | |
370 | bfd_elf_generic_reloc, /* special_function */ | |
371 | "R_RISCV_PCREL_LO12_S", /* name */ | |
0a1b45a2 | 372 | false, /* partial_inplace */ |
e23eba97 NC |
373 | 0, /* src_mask */ |
374 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 375 | false), /* pcrel_offset */ |
e23eba97 NC |
376 | |
377 | /* High 20 bits of 32-bit absolute address. */ | |
378 | HOWTO (R_RISCV_HI20, /* type */ | |
379 | 0, /* rightshift */ | |
380 | 2, /* size */ | |
381 | 32, /* bitsize */ | |
0a1b45a2 | 382 | false, /* pc_relative */ |
e23eba97 NC |
383 | 0, /* bitpos */ |
384 | complain_overflow_dont, /* complain_on_overflow */ | |
385 | bfd_elf_generic_reloc, /* special_function */ | |
386 | "R_RISCV_HI20", /* name */ | |
0a1b45a2 | 387 | false, /* partial_inplace */ |
e23eba97 NC |
388 | 0, /* src_mask */ |
389 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 390 | false), /* pcrel_offset */ |
e23eba97 NC |
391 | |
392 | /* High 12 bits of 32-bit load or add. */ | |
393 | HOWTO (R_RISCV_LO12_I, /* type */ | |
394 | 0, /* rightshift */ | |
395 | 2, /* size */ | |
396 | 32, /* bitsize */ | |
0a1b45a2 | 397 | false, /* pc_relative */ |
e23eba97 NC |
398 | 0, /* bitpos */ |
399 | complain_overflow_dont, /* complain_on_overflow */ | |
400 | bfd_elf_generic_reloc, /* special_function */ | |
401 | "R_RISCV_LO12_I", /* name */ | |
0a1b45a2 | 402 | false, /* partial_inplace */ |
e23eba97 NC |
403 | 0, /* src_mask */ |
404 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 405 | false), /* pcrel_offset */ |
e23eba97 NC |
406 | |
407 | /* High 12 bits of 32-bit store. */ | |
408 | HOWTO (R_RISCV_LO12_S, /* type */ | |
409 | 0, /* rightshift */ | |
410 | 2, /* size */ | |
411 | 32, /* bitsize */ | |
0a1b45a2 | 412 | false, /* pc_relative */ |
e23eba97 NC |
413 | 0, /* bitpos */ |
414 | complain_overflow_dont, /* complain_on_overflow */ | |
415 | bfd_elf_generic_reloc, /* special_function */ | |
416 | "R_RISCV_LO12_S", /* name */ | |
0a1b45a2 | 417 | false, /* partial_inplace */ |
e23eba97 NC |
418 | 0, /* src_mask */ |
419 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 420 | false), /* pcrel_offset */ |
e23eba97 NC |
421 | |
422 | /* High 20 bits of TLS LE thread pointer offset. */ | |
423 | HOWTO (R_RISCV_TPREL_HI20, /* type */ | |
424 | 0, /* rightshift */ | |
425 | 2, /* size */ | |
426 | 32, /* bitsize */ | |
0a1b45a2 | 427 | false, /* pc_relative */ |
e23eba97 NC |
428 | 0, /* bitpos */ |
429 | complain_overflow_signed, /* complain_on_overflow */ | |
430 | bfd_elf_generic_reloc, /* special_function */ | |
431 | "R_RISCV_TPREL_HI20", /* name */ | |
0a1b45a2 | 432 | true, /* partial_inplace */ |
e23eba97 NC |
433 | 0, /* src_mask */ |
434 | ENCODE_UTYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 435 | false), /* pcrel_offset */ |
e23eba97 NC |
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 | 2, /* size */ | |
441 | 32, /* bitsize */ | |
0a1b45a2 | 442 | false, /* pc_relative */ |
e23eba97 NC |
443 | 0, /* bitpos */ |
444 | complain_overflow_signed, /* complain_on_overflow */ | |
445 | bfd_elf_generic_reloc, /* special_function */ | |
446 | "R_RISCV_TPREL_LO12_I", /* name */ | |
0a1b45a2 | 447 | false, /* partial_inplace */ |
e23eba97 NC |
448 | 0, /* src_mask */ |
449 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 450 | false), /* pcrel_offset */ |
e23eba97 NC |
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 | 2, /* size */ | |
456 | 32, /* bitsize */ | |
0a1b45a2 | 457 | false, /* pc_relative */ |
e23eba97 NC |
458 | 0, /* bitpos */ |
459 | complain_overflow_signed, /* complain_on_overflow */ | |
460 | bfd_elf_generic_reloc, /* special_function */ | |
461 | "R_RISCV_TPREL_LO12_S", /* name */ | |
0a1b45a2 | 462 | false, /* partial_inplace */ |
e23eba97 NC |
463 | 0, /* src_mask */ |
464 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 465 | false), /* pcrel_offset */ |
e23eba97 | 466 | |
1d65abb5 | 467 | /* TLS LE thread pointer usage. May be relaxed. */ |
e23eba97 NC |
468 | HOWTO (R_RISCV_TPREL_ADD, /* type */ |
469 | 0, /* rightshift */ | |
b1b11e92 AM |
470 | 3, /* size */ |
471 | 0, /* bitsize */ | |
0a1b45a2 | 472 | false, /* pc_relative */ |
e23eba97 NC |
473 | 0, /* bitpos */ |
474 | complain_overflow_dont, /* complain_on_overflow */ | |
475 | bfd_elf_generic_reloc, /* special_function */ | |
476 | "R_RISCV_TPREL_ADD", /* name */ | |
0a1b45a2 | 477 | false, /* partial_inplace */ |
e23eba97 NC |
478 | 0, /* src_mask */ |
479 | 0, /* dst_mask */ | |
0a1b45a2 | 480 | false), /* pcrel_offset */ |
e23eba97 NC |
481 | |
482 | /* 8-bit in-place addition, for local label subtraction. */ | |
483 | HOWTO (R_RISCV_ADD8, /* type */ | |
484 | 0, /* rightshift */ | |
485 | 0, /* size */ | |
0b14696a | 486 | 8, /* bitsize */ |
0a1b45a2 | 487 | false, /* pc_relative */ |
e23eba97 NC |
488 | 0, /* bitpos */ |
489 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 490 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 491 | "R_RISCV_ADD8", /* name */ |
0a1b45a2 | 492 | false, /* partial_inplace */ |
e23eba97 | 493 | 0, /* src_mask */ |
b1b11e92 | 494 | 0xff, /* dst_mask */ |
0a1b45a2 | 495 | false), /* pcrel_offset */ |
e23eba97 NC |
496 | |
497 | /* 16-bit in-place addition, for local label subtraction. */ | |
498 | HOWTO (R_RISCV_ADD16, /* type */ | |
499 | 0, /* rightshift */ | |
500 | 1, /* size */ | |
501 | 16, /* bitsize */ | |
0a1b45a2 | 502 | false, /* pc_relative */ |
e23eba97 NC |
503 | 0, /* bitpos */ |
504 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 505 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 506 | "R_RISCV_ADD16", /* name */ |
0a1b45a2 | 507 | false, /* partial_inplace */ |
e23eba97 | 508 | 0, /* src_mask */ |
b1b11e92 | 509 | 0xffff, /* dst_mask */ |
0a1b45a2 | 510 | false), /* pcrel_offset */ |
e23eba97 NC |
511 | |
512 | /* 32-bit in-place addition, for local label subtraction. */ | |
513 | HOWTO (R_RISCV_ADD32, /* type */ | |
514 | 0, /* rightshift */ | |
515 | 2, /* size */ | |
516 | 32, /* bitsize */ | |
0a1b45a2 | 517 | false, /* pc_relative */ |
e23eba97 NC |
518 | 0, /* bitpos */ |
519 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 520 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 521 | "R_RISCV_ADD32", /* name */ |
0a1b45a2 | 522 | false, /* partial_inplace */ |
e23eba97 | 523 | 0, /* src_mask */ |
b1b11e92 | 524 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 525 | false), /* pcrel_offset */ |
e23eba97 NC |
526 | |
527 | /* 64-bit in-place addition, for local label subtraction. */ | |
528 | HOWTO (R_RISCV_ADD64, /* type */ | |
529 | 0, /* rightshift */ | |
530 | 4, /* size */ | |
531 | 64, /* bitsize */ | |
0a1b45a2 | 532 | false, /* pc_relative */ |
e23eba97 NC |
533 | 0, /* bitpos */ |
534 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 535 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 536 | "R_RISCV_ADD64", /* name */ |
0a1b45a2 | 537 | false, /* partial_inplace */ |
e23eba97 NC |
538 | 0, /* src_mask */ |
539 | MINUS_ONE, /* dst_mask */ | |
0a1b45a2 | 540 | false), /* pcrel_offset */ |
e23eba97 NC |
541 | |
542 | /* 8-bit in-place addition, for local label subtraction. */ | |
543 | HOWTO (R_RISCV_SUB8, /* type */ | |
544 | 0, /* rightshift */ | |
545 | 0, /* size */ | |
546 | 8, /* bitsize */ | |
0a1b45a2 | 547 | false, /* pc_relative */ |
e23eba97 NC |
548 | 0, /* bitpos */ |
549 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 550 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 551 | "R_RISCV_SUB8", /* name */ |
0a1b45a2 | 552 | false, /* partial_inplace */ |
e23eba97 | 553 | 0, /* src_mask */ |
b1b11e92 | 554 | 0xff, /* dst_mask */ |
0a1b45a2 | 555 | false), /* pcrel_offset */ |
e23eba97 NC |
556 | |
557 | /* 16-bit in-place addition, for local label subtraction. */ | |
558 | HOWTO (R_RISCV_SUB16, /* type */ | |
559 | 0, /* rightshift */ | |
560 | 1, /* size */ | |
561 | 16, /* bitsize */ | |
0a1b45a2 | 562 | false, /* pc_relative */ |
e23eba97 NC |
563 | 0, /* bitpos */ |
564 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 565 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 566 | "R_RISCV_SUB16", /* name */ |
0a1b45a2 | 567 | false, /* partial_inplace */ |
e23eba97 | 568 | 0, /* src_mask */ |
b1b11e92 | 569 | 0xffff, /* dst_mask */ |
0a1b45a2 | 570 | false), /* pcrel_offset */ |
e23eba97 NC |
571 | |
572 | /* 32-bit in-place addition, for local label subtraction. */ | |
573 | HOWTO (R_RISCV_SUB32, /* type */ | |
574 | 0, /* rightshift */ | |
575 | 2, /* size */ | |
576 | 32, /* bitsize */ | |
0a1b45a2 | 577 | false, /* pc_relative */ |
e23eba97 NC |
578 | 0, /* bitpos */ |
579 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 580 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 581 | "R_RISCV_SUB32", /* name */ |
0a1b45a2 | 582 | false, /* partial_inplace */ |
e23eba97 | 583 | 0, /* src_mask */ |
b1b11e92 | 584 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 585 | false), /* pcrel_offset */ |
e23eba97 NC |
586 | |
587 | /* 64-bit in-place addition, for local label subtraction. */ | |
588 | HOWTO (R_RISCV_SUB64, /* type */ | |
589 | 0, /* rightshift */ | |
590 | 4, /* size */ | |
591 | 64, /* bitsize */ | |
0a1b45a2 | 592 | false, /* pc_relative */ |
e23eba97 NC |
593 | 0, /* bitpos */ |
594 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 595 | riscv_elf_add_sub_reloc, /* special_function */ |
e23eba97 | 596 | "R_RISCV_SUB64", /* name */ |
0a1b45a2 | 597 | false, /* partial_inplace */ |
e23eba97 NC |
598 | 0, /* src_mask */ |
599 | MINUS_ONE, /* dst_mask */ | |
0a1b45a2 | 600 | false), /* pcrel_offset */ |
e23eba97 NC |
601 | |
602 | /* GNU extension to record C++ vtable hierarchy */ | |
603 | HOWTO (R_RISCV_GNU_VTINHERIT, /* type */ | |
604 | 0, /* rightshift */ | |
605 | 4, /* size */ | |
606 | 0, /* bitsize */ | |
0a1b45a2 | 607 | false, /* pc_relative */ |
e23eba97 NC |
608 | 0, /* bitpos */ |
609 | complain_overflow_dont, /* complain_on_overflow */ | |
610 | NULL, /* special_function */ | |
611 | "R_RISCV_GNU_VTINHERIT", /* name */ | |
0a1b45a2 | 612 | false, /* partial_inplace */ |
e23eba97 NC |
613 | 0, /* src_mask */ |
614 | 0, /* dst_mask */ | |
0a1b45a2 | 615 | false), /* pcrel_offset */ |
e23eba97 NC |
616 | |
617 | /* GNU extension to record C++ vtable member usage */ | |
618 | HOWTO (R_RISCV_GNU_VTENTRY, /* type */ | |
619 | 0, /* rightshift */ | |
620 | 4, /* size */ | |
621 | 0, /* bitsize */ | |
0a1b45a2 | 622 | false, /* pc_relative */ |
e23eba97 NC |
623 | 0, /* bitpos */ |
624 | complain_overflow_dont, /* complain_on_overflow */ | |
625 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
626 | "R_RISCV_GNU_VTENTRY", /* name */ | |
0a1b45a2 | 627 | false, /* partial_inplace */ |
e23eba97 NC |
628 | 0, /* src_mask */ |
629 | 0, /* dst_mask */ | |
0a1b45a2 | 630 | false), /* pcrel_offset */ |
e23eba97 NC |
631 | |
632 | /* Indicates an alignment statement. The addend field encodes how many | |
633 | bytes of NOPs follow the statement. The desired alignment is the | |
634 | addend rounded up to the next power of two. */ | |
635 | HOWTO (R_RISCV_ALIGN, /* type */ | |
636 | 0, /* rightshift */ | |
b1b11e92 | 637 | 3, /* size */ |
e23eba97 | 638 | 0, /* bitsize */ |
0a1b45a2 | 639 | false, /* pc_relative */ |
e23eba97 NC |
640 | 0, /* bitpos */ |
641 | complain_overflow_dont, /* complain_on_overflow */ | |
642 | bfd_elf_generic_reloc, /* special_function */ | |
643 | "R_RISCV_ALIGN", /* name */ | |
0a1b45a2 | 644 | false, /* partial_inplace */ |
e23eba97 NC |
645 | 0, /* src_mask */ |
646 | 0, /* dst_mask */ | |
0a1b45a2 | 647 | false), /* pcrel_offset */ |
e23eba97 NC |
648 | |
649 | /* 8-bit PC-relative branch offset. */ | |
650 | HOWTO (R_RISCV_RVC_BRANCH, /* type */ | |
651 | 0, /* rightshift */ | |
b1b11e92 AM |
652 | 1, /* size */ |
653 | 16, /* bitsize */ | |
0a1b45a2 | 654 | true, /* pc_relative */ |
e23eba97 NC |
655 | 0, /* bitpos */ |
656 | complain_overflow_signed, /* complain_on_overflow */ | |
657 | bfd_elf_generic_reloc, /* special_function */ | |
658 | "R_RISCV_RVC_BRANCH", /* name */ | |
0a1b45a2 | 659 | false, /* partial_inplace */ |
e23eba97 | 660 | 0, /* src_mask */ |
5a9f5403 | 661 | ENCODE_CBTYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 662 | true), /* pcrel_offset */ |
e23eba97 NC |
663 | |
664 | /* 11-bit PC-relative jump offset. */ | |
665 | HOWTO (R_RISCV_RVC_JUMP, /* type */ | |
666 | 0, /* rightshift */ | |
b1b11e92 AM |
667 | 1, /* size */ |
668 | 16, /* bitsize */ | |
0a1b45a2 | 669 | true, /* pc_relative */ |
e23eba97 NC |
670 | 0, /* bitpos */ |
671 | complain_overflow_dont, /* complain_on_overflow */ | |
e23eba97 NC |
672 | bfd_elf_generic_reloc, /* special_function */ |
673 | "R_RISCV_RVC_JUMP", /* name */ | |
0a1b45a2 | 674 | false, /* partial_inplace */ |
e23eba97 | 675 | 0, /* src_mask */ |
5a9f5403 | 676 | ENCODE_CJTYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 677 | true), /* pcrel_offset */ |
e23eba97 NC |
678 | |
679 | /* High 6 bits of 18-bit absolute address. */ | |
680 | HOWTO (R_RISCV_RVC_LUI, /* type */ | |
681 | 0, /* rightshift */ | |
b1b11e92 AM |
682 | 1, /* size */ |
683 | 16, /* bitsize */ | |
0a1b45a2 | 684 | false, /* pc_relative */ |
e23eba97 NC |
685 | 0, /* bitpos */ |
686 | complain_overflow_dont, /* complain_on_overflow */ | |
687 | bfd_elf_generic_reloc, /* special_function */ | |
688 | "R_RISCV_RVC_LUI", /* name */ | |
0a1b45a2 | 689 | false, /* partial_inplace */ |
e23eba97 | 690 | 0, /* src_mask */ |
5a9f5403 | 691 | ENCODE_CITYPE_IMM (-1U), /* dst_mask */ |
0a1b45a2 | 692 | false), /* pcrel_offset */ |
e23eba97 | 693 | |
1d65abb5 | 694 | /* GP-relative load. */ |
e23eba97 NC |
695 | HOWTO (R_RISCV_GPREL_I, /* type */ |
696 | 0, /* rightshift */ | |
697 | 2, /* size */ | |
698 | 32, /* bitsize */ | |
0a1b45a2 | 699 | false, /* pc_relative */ |
e23eba97 NC |
700 | 0, /* bitpos */ |
701 | complain_overflow_dont, /* complain_on_overflow */ | |
702 | bfd_elf_generic_reloc, /* special_function */ | |
703 | "R_RISCV_GPREL_I", /* name */ | |
0a1b45a2 | 704 | false, /* partial_inplace */ |
e23eba97 NC |
705 | 0, /* src_mask */ |
706 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 707 | false), /* pcrel_offset */ |
e23eba97 | 708 | |
1d65abb5 | 709 | /* GP-relative store. */ |
e23eba97 NC |
710 | HOWTO (R_RISCV_GPREL_S, /* type */ |
711 | 0, /* rightshift */ | |
712 | 2, /* size */ | |
713 | 32, /* bitsize */ | |
0a1b45a2 | 714 | false, /* pc_relative */ |
e23eba97 NC |
715 | 0, /* bitpos */ |
716 | complain_overflow_dont, /* complain_on_overflow */ | |
717 | bfd_elf_generic_reloc, /* special_function */ | |
718 | "R_RISCV_GPREL_S", /* name */ | |
0a1b45a2 | 719 | false, /* partial_inplace */ |
e23eba97 NC |
720 | 0, /* src_mask */ |
721 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 722 | false), /* pcrel_offset */ |
45f76423 AW |
723 | |
724 | /* TP-relative TLS LE load. */ | |
725 | HOWTO (R_RISCV_TPREL_I, /* type */ | |
726 | 0, /* rightshift */ | |
727 | 2, /* size */ | |
728 | 32, /* bitsize */ | |
0a1b45a2 | 729 | false, /* pc_relative */ |
45f76423 AW |
730 | 0, /* bitpos */ |
731 | complain_overflow_signed, /* complain_on_overflow */ | |
732 | bfd_elf_generic_reloc, /* special_function */ | |
733 | "R_RISCV_TPREL_I", /* name */ | |
0a1b45a2 | 734 | false, /* partial_inplace */ |
45f76423 AW |
735 | 0, /* src_mask */ |
736 | ENCODE_ITYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 737 | false), /* pcrel_offset */ |
45f76423 AW |
738 | |
739 | /* TP-relative TLS LE store. */ | |
740 | HOWTO (R_RISCV_TPREL_S, /* type */ | |
741 | 0, /* rightshift */ | |
742 | 2, /* size */ | |
743 | 32, /* bitsize */ | |
0a1b45a2 | 744 | false, /* pc_relative */ |
45f76423 AW |
745 | 0, /* bitpos */ |
746 | complain_overflow_signed, /* complain_on_overflow */ | |
747 | bfd_elf_generic_reloc, /* special_function */ | |
748 | "R_RISCV_TPREL_S", /* name */ | |
0a1b45a2 | 749 | false, /* partial_inplace */ |
45f76423 AW |
750 | 0, /* src_mask */ |
751 | ENCODE_STYPE_IMM (-1U), /* dst_mask */ | |
0a1b45a2 | 752 | false), /* pcrel_offset */ |
45f76423 AW |
753 | |
754 | /* The paired relocation may be relaxed. */ | |
755 | HOWTO (R_RISCV_RELAX, /* type */ | |
756 | 0, /* rightshift */ | |
757 | 3, /* size */ | |
758 | 0, /* bitsize */ | |
0a1b45a2 | 759 | false, /* pc_relative */ |
45f76423 AW |
760 | 0, /* bitpos */ |
761 | complain_overflow_dont, /* complain_on_overflow */ | |
762 | bfd_elf_generic_reloc, /* special_function */ | |
763 | "R_RISCV_RELAX", /* name */ | |
0a1b45a2 | 764 | false, /* partial_inplace */ |
45f76423 AW |
765 | 0, /* src_mask */ |
766 | 0, /* dst_mask */ | |
0a1b45a2 | 767 | false), /* pcrel_offset */ |
45f76423 AW |
768 | |
769 | /* 6-bit in-place addition, for local label subtraction. */ | |
770 | HOWTO (R_RISCV_SUB6, /* type */ | |
771 | 0, /* rightshift */ | |
772 | 0, /* size */ | |
773 | 8, /* bitsize */ | |
0a1b45a2 | 774 | false, /* pc_relative */ |
45f76423 AW |
775 | 0, /* bitpos */ |
776 | complain_overflow_dont, /* complain_on_overflow */ | |
57593436 | 777 | riscv_elf_add_sub_reloc, /* special_function */ |
45f76423 | 778 | "R_RISCV_SUB6", /* name */ |
0a1b45a2 | 779 | false, /* partial_inplace */ |
45f76423 AW |
780 | 0, /* src_mask */ |
781 | 0x3f, /* dst_mask */ | |
0a1b45a2 | 782 | false), /* pcrel_offset */ |
45f76423 AW |
783 | |
784 | /* 6-bit in-place setting, for local label subtraction. */ | |
785 | HOWTO (R_RISCV_SET6, /* type */ | |
786 | 0, /* rightshift */ | |
787 | 0, /* size */ | |
788 | 8, /* bitsize */ | |
0a1b45a2 | 789 | false, /* pc_relative */ |
45f76423 AW |
790 | 0, /* bitpos */ |
791 | complain_overflow_dont, /* complain_on_overflow */ | |
792 | bfd_elf_generic_reloc, /* special_function */ | |
793 | "R_RISCV_SET6", /* name */ | |
0a1b45a2 | 794 | false, /* partial_inplace */ |
45f76423 AW |
795 | 0, /* src_mask */ |
796 | 0x3f, /* dst_mask */ | |
0a1b45a2 | 797 | false), /* pcrel_offset */ |
45f76423 AW |
798 | |
799 | /* 8-bit in-place setting, for local label subtraction. */ | |
800 | HOWTO (R_RISCV_SET8, /* type */ | |
801 | 0, /* rightshift */ | |
802 | 0, /* size */ | |
803 | 8, /* bitsize */ | |
0a1b45a2 | 804 | false, /* pc_relative */ |
45f76423 AW |
805 | 0, /* bitpos */ |
806 | complain_overflow_dont, /* complain_on_overflow */ | |
807 | bfd_elf_generic_reloc, /* special_function */ | |
808 | "R_RISCV_SET8", /* name */ | |
0a1b45a2 | 809 | false, /* partial_inplace */ |
45f76423 | 810 | 0, /* src_mask */ |
b1b11e92 | 811 | 0xff, /* dst_mask */ |
0a1b45a2 | 812 | false), /* pcrel_offset */ |
45f76423 AW |
813 | |
814 | /* 16-bit in-place setting, for local label subtraction. */ | |
815 | HOWTO (R_RISCV_SET16, /* type */ | |
816 | 0, /* rightshift */ | |
817 | 1, /* size */ | |
818 | 16, /* bitsize */ | |
0a1b45a2 | 819 | false, /* pc_relative */ |
45f76423 AW |
820 | 0, /* bitpos */ |
821 | complain_overflow_dont, /* complain_on_overflow */ | |
822 | bfd_elf_generic_reloc, /* special_function */ | |
823 | "R_RISCV_SET16", /* name */ | |
0a1b45a2 | 824 | false, /* partial_inplace */ |
45f76423 | 825 | 0, /* src_mask */ |
b1b11e92 | 826 | 0xffff, /* dst_mask */ |
0a1b45a2 | 827 | false), /* pcrel_offset */ |
45f76423 AW |
828 | |
829 | /* 32-bit in-place setting, for local label subtraction. */ | |
830 | HOWTO (R_RISCV_SET32, /* type */ | |
831 | 0, /* rightshift */ | |
832 | 2, /* size */ | |
833 | 32, /* bitsize */ | |
0a1b45a2 | 834 | false, /* pc_relative */ |
45f76423 AW |
835 | 0, /* bitpos */ |
836 | complain_overflow_dont, /* complain_on_overflow */ | |
837 | bfd_elf_generic_reloc, /* special_function */ | |
838 | "R_RISCV_SET32", /* name */ | |
0a1b45a2 | 839 | false, /* partial_inplace */ |
45f76423 | 840 | 0, /* src_mask */ |
b1b11e92 | 841 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 842 | false), /* pcrel_offset */ |
a6cbf936 KLC |
843 | |
844 | /* 32-bit PC relative. */ | |
845 | HOWTO (R_RISCV_32_PCREL, /* type */ | |
846 | 0, /* rightshift */ | |
847 | 2, /* size */ | |
848 | 32, /* bitsize */ | |
0a1b45a2 | 849 | true, /* pc_relative */ |
a6cbf936 KLC |
850 | 0, /* bitpos */ |
851 | complain_overflow_dont, /* complain_on_overflow */ | |
852 | bfd_elf_generic_reloc, /* special_function */ | |
853 | "R_RISCV_32_PCREL", /* name */ | |
0a1b45a2 | 854 | false, /* partial_inplace */ |
02dd9d25 NC |
855 | 0, /* src_mask */ |
856 | 0xffffffff, /* dst_mask */ | |
0a1b45a2 | 857 | false), /* pcrel_offset */ |
02dd9d25 NC |
858 | |
859 | /* Relocation against a local ifunc symbol in a shared object. */ | |
860 | HOWTO (R_RISCV_IRELATIVE, /* type */ | |
861 | 0, /* rightshift */ | |
862 | 2, /* size */ | |
863 | 32, /* bitsize */ | |
0a1b45a2 | 864 | false, /* pc_relative */ |
02dd9d25 NC |
865 | 0, /* bitpos */ |
866 | complain_overflow_dont, /* complain_on_overflow */ | |
867 | bfd_elf_generic_reloc, /* special_function */ | |
868 | "R_RISCV_IRELATIVE", /* name */ | |
0a1b45a2 | 869 | false, /* partial_inplace */ |
a6cbf936 | 870 | 0, /* src_mask */ |
b1b11e92 | 871 | 0xffffffff, /* dst_mask */ |
0a1b45a2 | 872 | false), /* pcrel_offset */ |
e23eba97 NC |
873 | }; |
874 | ||
875 | /* A mapping from BFD reloc types to RISC-V ELF reloc types. */ | |
e23eba97 NC |
876 | struct elf_reloc_map |
877 | { | |
878 | bfd_reloc_code_real_type bfd_val; | |
879 | enum elf_riscv_reloc_type elf_val; | |
880 | }; | |
881 | ||
882 | static const struct elf_reloc_map riscv_reloc_map[] = | |
883 | { | |
884 | { BFD_RELOC_NONE, R_RISCV_NONE }, | |
885 | { BFD_RELOC_32, R_RISCV_32 }, | |
886 | { BFD_RELOC_64, R_RISCV_64 }, | |
887 | { BFD_RELOC_RISCV_ADD8, R_RISCV_ADD8 }, | |
888 | { BFD_RELOC_RISCV_ADD16, R_RISCV_ADD16 }, | |
889 | { BFD_RELOC_RISCV_ADD32, R_RISCV_ADD32 }, | |
890 | { BFD_RELOC_RISCV_ADD64, R_RISCV_ADD64 }, | |
891 | { BFD_RELOC_RISCV_SUB8, R_RISCV_SUB8 }, | |
892 | { BFD_RELOC_RISCV_SUB16, R_RISCV_SUB16 }, | |
893 | { BFD_RELOC_RISCV_SUB32, R_RISCV_SUB32 }, | |
894 | { BFD_RELOC_RISCV_SUB64, R_RISCV_SUB64 }, | |
895 | { BFD_RELOC_CTOR, R_RISCV_64 }, | |
896 | { BFD_RELOC_12_PCREL, R_RISCV_BRANCH }, | |
897 | { BFD_RELOC_RISCV_HI20, R_RISCV_HI20 }, | |
898 | { BFD_RELOC_RISCV_LO12_I, R_RISCV_LO12_I }, | |
899 | { BFD_RELOC_RISCV_LO12_S, R_RISCV_LO12_S }, | |
900 | { BFD_RELOC_RISCV_PCREL_LO12_I, R_RISCV_PCREL_LO12_I }, | |
901 | { BFD_RELOC_RISCV_PCREL_LO12_S, R_RISCV_PCREL_LO12_S }, | |
902 | { BFD_RELOC_RISCV_CALL, R_RISCV_CALL }, | |
903 | { BFD_RELOC_RISCV_CALL_PLT, R_RISCV_CALL_PLT }, | |
904 | { BFD_RELOC_RISCV_PCREL_HI20, R_RISCV_PCREL_HI20 }, | |
905 | { BFD_RELOC_RISCV_JMP, R_RISCV_JAL }, | |
906 | { BFD_RELOC_RISCV_GOT_HI20, R_RISCV_GOT_HI20 }, | |
907 | { BFD_RELOC_RISCV_TLS_DTPMOD32, R_RISCV_TLS_DTPMOD32 }, | |
908 | { BFD_RELOC_RISCV_TLS_DTPREL32, R_RISCV_TLS_DTPREL32 }, | |
909 | { BFD_RELOC_RISCV_TLS_DTPMOD64, R_RISCV_TLS_DTPMOD64 }, | |
910 | { BFD_RELOC_RISCV_TLS_DTPREL64, R_RISCV_TLS_DTPREL64 }, | |
911 | { BFD_RELOC_RISCV_TLS_TPREL32, R_RISCV_TLS_TPREL32 }, | |
912 | { BFD_RELOC_RISCV_TLS_TPREL64, R_RISCV_TLS_TPREL64 }, | |
913 | { BFD_RELOC_RISCV_TPREL_HI20, R_RISCV_TPREL_HI20 }, | |
914 | { BFD_RELOC_RISCV_TPREL_ADD, R_RISCV_TPREL_ADD }, | |
915 | { BFD_RELOC_RISCV_TPREL_LO12_S, R_RISCV_TPREL_LO12_S }, | |
916 | { BFD_RELOC_RISCV_TPREL_LO12_I, R_RISCV_TPREL_LO12_I }, | |
917 | { BFD_RELOC_RISCV_TLS_GOT_HI20, R_RISCV_TLS_GOT_HI20 }, | |
918 | { BFD_RELOC_RISCV_TLS_GD_HI20, R_RISCV_TLS_GD_HI20 }, | |
919 | { BFD_RELOC_RISCV_ALIGN, R_RISCV_ALIGN }, | |
920 | { BFD_RELOC_RISCV_RVC_BRANCH, R_RISCV_RVC_BRANCH }, | |
921 | { BFD_RELOC_RISCV_RVC_JUMP, R_RISCV_RVC_JUMP }, | |
922 | { BFD_RELOC_RISCV_RVC_LUI, R_RISCV_RVC_LUI }, | |
923 | { BFD_RELOC_RISCV_GPREL_I, R_RISCV_GPREL_I }, | |
924 | { BFD_RELOC_RISCV_GPREL_S, R_RISCV_GPREL_S }, | |
45f76423 AW |
925 | { BFD_RELOC_RISCV_TPREL_I, R_RISCV_TPREL_I }, |
926 | { BFD_RELOC_RISCV_TPREL_S, R_RISCV_TPREL_S }, | |
927 | { BFD_RELOC_RISCV_RELAX, R_RISCV_RELAX }, | |
928 | { BFD_RELOC_RISCV_SUB6, R_RISCV_SUB6 }, | |
929 | { BFD_RELOC_RISCV_SET6, R_RISCV_SET6 }, | |
930 | { BFD_RELOC_RISCV_SET8, R_RISCV_SET8 }, | |
931 | { BFD_RELOC_RISCV_SET16, R_RISCV_SET16 }, | |
932 | { BFD_RELOC_RISCV_SET32, R_RISCV_SET32 }, | |
a6cbf936 | 933 | { BFD_RELOC_RISCV_32_PCREL, R_RISCV_32_PCREL }, |
e23eba97 NC |
934 | }; |
935 | ||
936 | /* Given a BFD reloc type, return a howto structure. */ | |
937 | ||
938 | reloc_howto_type * | |
939 | riscv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
940 | bfd_reloc_code_real_type code) | |
941 | { | |
942 | unsigned int i; | |
943 | ||
944 | for (i = 0; i < ARRAY_SIZE (riscv_reloc_map); i++) | |
945 | if (riscv_reloc_map[i].bfd_val == code) | |
946 | return &howto_table[(int) riscv_reloc_map[i].elf_val]; | |
947 | ||
948 | bfd_set_error (bfd_error_bad_value); | |
949 | return NULL; | |
950 | } | |
951 | ||
952 | reloc_howto_type * | |
953 | riscv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) | |
954 | { | |
955 | unsigned int i; | |
956 | ||
957 | for (i = 0; i < ARRAY_SIZE (howto_table); i++) | |
958 | if (howto_table[i].name && strcasecmp (howto_table[i].name, r_name) == 0) | |
959 | return &howto_table[i]; | |
960 | ||
961 | return NULL; | |
962 | } | |
963 | ||
964 | reloc_howto_type * | |
0aa13fee | 965 | riscv_elf_rtype_to_howto (bfd *abfd, unsigned int r_type) |
e23eba97 NC |
966 | { |
967 | if (r_type >= ARRAY_SIZE (howto_table)) | |
968 | { | |
0aa13fee AM |
969 | (*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"), |
970 | abfd, r_type); | |
e23eba97 NC |
971 | bfd_set_error (bfd_error_bad_value); |
972 | return NULL; | |
973 | } | |
974 | return &howto_table[r_type]; | |
975 | } | |
57593436 KLC |
976 | |
977 | /* Special_function of RISCV_ADD and RISCV_SUB relocations. */ | |
978 | ||
979 | static bfd_reloc_status_type | |
980 | riscv_elf_add_sub_reloc (bfd *abfd, | |
981 | arelent *reloc_entry, | |
982 | asymbol *symbol, | |
983 | void *data, | |
984 | asection *input_section, | |
985 | bfd *output_bfd, | |
986 | char **error_message ATTRIBUTE_UNUSED) | |
987 | { | |
988 | reloc_howto_type *howto = reloc_entry->howto; | |
989 | bfd_vma relocation; | |
990 | ||
991 | if (output_bfd != NULL | |
992 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
993 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
994 | { | |
995 | reloc_entry->address += input_section->output_offset; | |
996 | return bfd_reloc_ok; | |
997 | } | |
998 | ||
999 | if (output_bfd != NULL) | |
1000 | return bfd_reloc_continue; | |
1001 | ||
1002 | relocation = symbol->value + symbol->section->output_section->vma | |
1003 | + symbol->section->output_offset + reloc_entry->addend; | |
3f1a2892 NC |
1004 | |
1005 | bfd_size_type octets = reloc_entry->address | |
1006 | * bfd_octets_per_byte (abfd, input_section); | |
1007 | if (!bfd_reloc_offset_in_range (reloc_entry->howto, abfd, | |
1008 | input_section, octets)) | |
1009 | return bfd_reloc_outofrange; | |
1010 | ||
57593436 KLC |
1011 | bfd_vma old_value = bfd_get (howto->bitsize, abfd, |
1012 | data + reloc_entry->address); | |
1013 | ||
1014 | switch (howto->type) | |
1015 | { | |
1016 | case R_RISCV_ADD8: | |
1017 | case R_RISCV_ADD16: | |
1018 | case R_RISCV_ADD32: | |
1019 | case R_RISCV_ADD64: | |
1020 | relocation = old_value + relocation; | |
1021 | break; | |
1022 | case R_RISCV_SUB6: | |
1023 | case R_RISCV_SUB8: | |
1024 | case R_RISCV_SUB16: | |
1025 | case R_RISCV_SUB32: | |
1026 | case R_RISCV_SUB64: | |
1027 | relocation = old_value - relocation; | |
1028 | break; | |
1029 | } | |
1030 | bfd_put (howto->bitsize, abfd, relocation, data + reloc_entry->address); | |
1031 | ||
1032 | return bfd_reloc_ok; | |
1033 | } | |
1080bf78 | 1034 | |
7671eff8 NC |
1035 | /* Always add the IMPLICIT for the SUBSET. */ |
1036 | ||
1037 | static bool | |
1038 | check_implicit_always (const char *implicit ATTRIBUTE_UNUSED, | |
1039 | riscv_subset_t *subset ATTRIBUTE_UNUSED) | |
1040 | { | |
1041 | return true; | |
1042 | } | |
1043 | ||
1044 | /* Add the IMPLICIT only when the version of SUBSET less than 2.1. */ | |
1045 | ||
1046 | static bool | |
1047 | check_implicit_for_i (const char *implicit ATTRIBUTE_UNUSED, | |
1048 | riscv_subset_t *subset) | |
1049 | { | |
1050 | return (subset->major_version < 2 | |
1051 | || (subset->major_version == 2 | |
1052 | && subset->minor_version < 1)); | |
1053 | } | |
1054 | ||
1055 | /* Record all implicit information for the subsets. */ | |
1056 | struct riscv_implicit_subset | |
1057 | { | |
1058 | const char *subset_name; | |
1059 | const char *implicit_name; | |
1060 | /* A function to determine if we need to add the implicit subset. */ | |
1061 | bool (*check_func) (const char *, riscv_subset_t *); | |
1062 | }; | |
1063 | static struct riscv_implicit_subset riscv_implicit_subsets[] = | |
1064 | { | |
1065 | {"e", "i", check_implicit_always}, | |
1066 | {"i", "zicsr", check_implicit_for_i}, | |
1067 | {"i", "zifencei", check_implicit_for_i}, | |
c9f27991 NC |
1068 | {"g", "i", check_implicit_always}, |
1069 | {"g", "m", check_implicit_always}, | |
1070 | {"g", "a", check_implicit_always}, | |
1071 | {"g", "f", check_implicit_always}, | |
1072 | {"g", "d", check_implicit_always}, | |
7671eff8 NC |
1073 | {"g", "zicsr", check_implicit_always}, |
1074 | {"g", "zifencei", check_implicit_always}, | |
1075 | {"q", "d", check_implicit_always}, | |
65e4a99a NC |
1076 | {"v", "d", check_implicit_always}, |
1077 | {"v", "zve64d", check_implicit_always}, | |
1078 | {"v", "zvl128b", check_implicit_always}, | |
1079 | {"zve64d", "d", check_implicit_always}, | |
1080 | {"zve64d", "zve64f", check_implicit_always}, | |
1081 | {"zve64f", "zve32f", check_implicit_always}, | |
1082 | {"zve64f", "zve64x", check_implicit_always}, | |
1083 | {"zve64f", "zvl64b", check_implicit_always}, | |
1084 | {"zve32f", "f", check_implicit_always}, | |
1085 | {"zve32f", "zvl32b", check_implicit_always}, | |
1086 | {"zve32f", "zve32x", check_implicit_always}, | |
1087 | {"zve64x", "zve32x", check_implicit_always}, | |
1088 | {"zve64x", "zvl64b", check_implicit_always}, | |
1089 | {"zve32x", "zvl32b", check_implicit_always}, | |
1090 | {"zvl65536b", "zvl32768b", check_implicit_always}, | |
1091 | {"zvl32768b", "zvl16384b", check_implicit_always}, | |
1092 | {"zvl16384b", "zvl8192b", check_implicit_always}, | |
1093 | {"zvl8192b", "zvl4096b", check_implicit_always}, | |
1094 | {"zvl4096b", "zvl2048b", check_implicit_always}, | |
1095 | {"zvl2048b", "zvl1024b", check_implicit_always}, | |
1096 | {"zvl1024b", "zvl512b", check_implicit_always}, | |
1097 | {"zvl512b", "zvl256b", check_implicit_always}, | |
1098 | {"zvl256b", "zvl128b", check_implicit_always}, | |
1099 | {"zvl128b", "zvl64b", check_implicit_always}, | |
1100 | {"zvl64b", "zvl32b", check_implicit_always}, | |
7671eff8 NC |
1101 | {"d", "f", check_implicit_always}, |
1102 | {"f", "zicsr", check_implicit_always}, | |
035784e3 NC |
1103 | {"zfh", "f", check_implicit_always}, |
1104 | {"zfh", "zicsr", check_implicit_always}, | |
da05b70e | 1105 | {"zqinx", "zdinx", check_implicit_always}, |
1106 | {"zdinx", "zfinx", check_implicit_always}, | |
dfdba097 | 1107 | {"zk", "zkn", check_implicit_always}, |
1108 | {"zk", "zkr", check_implicit_always}, | |
1109 | {"zk", "zkt", check_implicit_always}, | |
1110 | {"zkn", "zbkb", check_implicit_always}, | |
1111 | {"zkn", "zbkc", check_implicit_always}, | |
1112 | {"zkn", "zbkx", check_implicit_always}, | |
1113 | {"zkn", "zkne", check_implicit_always}, | |
1114 | {"zkn", "zknd", check_implicit_always}, | |
1115 | {"zkn", "zknh", check_implicit_always}, | |
1116 | {"zks", "zbkb", check_implicit_always}, | |
1117 | {"zks", "zbkc", check_implicit_always}, | |
1118 | {"zks", "zbkx", check_implicit_always}, | |
1119 | {"zks", "zksed", check_implicit_always}, | |
1120 | {"zks", "zksh", check_implicit_always}, | |
7671eff8 NC |
1121 | {NULL, NULL, NULL} |
1122 | }; | |
1123 | ||
c9f27991 NC |
1124 | /* For default_enable field, decide if the extension should |
1125 | be enbaled by default. */ | |
e601909a | 1126 | |
c9f27991 | 1127 | #define EXT_DEFAULT 0x1 |
e601909a | 1128 | |
c9f27991 NC |
1129 | /* List all extensions that binutils should know about. */ |
1130 | ||
1131 | struct riscv_supported_ext | |
e601909a | 1132 | { |
c9f27991 NC |
1133 | const char *name; |
1134 | enum riscv_spec_class isa_spec_class; | |
1135 | int major_version; | |
1136 | int minor_version; | |
1137 | unsigned long default_enable; | |
e601909a NC |
1138 | }; |
1139 | ||
c9f27991 NC |
1140 | /* The standard extensions must be added in canonical order. */ |
1141 | ||
1142 | static struct riscv_supported_ext riscv_supported_std_ext[] = | |
e601909a | 1143 | { |
c9f27991 NC |
1144 | {"e", ISA_SPEC_CLASS_20191213, 1, 9, 0 }, |
1145 | {"e", ISA_SPEC_CLASS_20190608, 1, 9, 0 }, | |
1146 | {"e", ISA_SPEC_CLASS_2P2, 1, 9, 0 }, | |
1147 | {"i", ISA_SPEC_CLASS_20191213, 2, 1, 0 }, | |
1148 | {"i", ISA_SPEC_CLASS_20190608, 2, 1, 0 }, | |
1149 | {"i", ISA_SPEC_CLASS_2P2, 2, 0, 0 }, | |
1150 | /* The g is a special case which we don't want to output it, | |
1151 | but still need it when adding implicit extensions. */ | |
1152 | {"g", ISA_SPEC_CLASS_NONE, RISCV_UNKNOWN_VERSION, RISCV_UNKNOWN_VERSION, EXT_DEFAULT }, | |
1153 | {"m", ISA_SPEC_CLASS_20191213, 2, 0, 0 }, | |
1154 | {"m", ISA_SPEC_CLASS_20190608, 2, 0, 0 }, | |
1155 | {"m", ISA_SPEC_CLASS_2P2, 2, 0, 0 }, | |
1156 | {"a", ISA_SPEC_CLASS_20191213, 2, 1, 0 }, | |
1157 | {"a", ISA_SPEC_CLASS_20190608, 2, 0, 0 }, | |
1158 | {"a", ISA_SPEC_CLASS_2P2, 2, 0, 0 }, | |
1159 | {"f", ISA_SPEC_CLASS_20191213, 2, 2, 0 }, | |
1160 | {"f", ISA_SPEC_CLASS_20190608, 2, 2, 0 }, | |
1161 | {"f", ISA_SPEC_CLASS_2P2, 2, 0, 0 }, | |
1162 | {"d", ISA_SPEC_CLASS_20191213, 2, 2, 0 }, | |
1163 | {"d", ISA_SPEC_CLASS_20190608, 2, 2, 0 }, | |
1164 | {"d", ISA_SPEC_CLASS_2P2, 2, 0, 0 }, | |
1165 | {"q", ISA_SPEC_CLASS_20191213, 2, 2, 0 }, | |
1166 | {"q", ISA_SPEC_CLASS_20190608, 2, 2, 0 }, | |
1167 | {"q", ISA_SPEC_CLASS_2P2, 2, 0, 0 }, | |
c9f27991 NC |
1168 | {"c", ISA_SPEC_CLASS_20191213, 2, 0, 0 }, |
1169 | {"c", ISA_SPEC_CLASS_20190608, 2, 0, 0 }, | |
1170 | {"c", ISA_SPEC_CLASS_2P2, 2, 0, 0 }, | |
65e4a99a | 1171 | {"v", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
c9f27991 | 1172 | {NULL, 0, 0, 0, 0} |
e601909a NC |
1173 | }; |
1174 | ||
c9f27991 | 1175 | static struct riscv_supported_ext riscv_supported_std_z_ext[] = |
e601909a | 1176 | { |
41d6ac5d | 1177 | {"zicbom", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
3b374308 | 1178 | {"zicbop", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
41d6ac5d | 1179 | {"zicboz", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
c9f27991 NC |
1180 | {"zicsr", ISA_SPEC_CLASS_20191213, 2, 0, 0 }, |
1181 | {"zicsr", ISA_SPEC_CLASS_20190608, 2, 0, 0 }, | |
1182 | {"zifencei", ISA_SPEC_CLASS_20191213, 2, 0, 0 }, | |
1183 | {"zifencei", ISA_SPEC_CLASS_20190608, 2, 0, 0 }, | |
1184 | {"zihintpause", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
035784e3 | 1185 | {"zfh", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
da05b70e | 1186 | {"zfinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
1187 | {"zdinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1188 | {"zqinx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
586dcfc8 PT |
1189 | {"zbb", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
1190 | {"zba", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1191 | {"zbc", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
dfdba097 | 1192 | {"zbs", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
1193 | {"zbkb", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1194 | {"zbkc", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1195 | {"zbkx", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1196 | {"zk", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1197 | {"zkn", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1198 | {"zknd", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1199 | {"zkne", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1200 | {"zknh", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1201 | {"zkr", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1202 | {"zks", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1203 | {"zksed", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1204 | {"zksh", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1205 | {"zkt", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
65e4a99a NC |
1206 | {"zve32x", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
1207 | {"zve32f", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1208 | {"zve32d", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1209 | {"zve64x", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1210 | {"zve64f", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1211 | {"zve64d", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1212 | {"zvl32b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1213 | {"zvl64b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1214 | {"zvl128b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1215 | {"zvl256b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1216 | {"zvl512b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1217 | {"zvl1024b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1218 | {"zvl2048b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1219 | {"zvl4096b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1220 | {"zvl8192b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1221 | {"zvl16384b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1222 | {"zvl32768b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
1223 | {"zvl65536b", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, | |
c9f27991 NC |
1224 | {NULL, 0, 0, 0, 0} |
1225 | }; | |
1226 | ||
1227 | static struct riscv_supported_ext riscv_supported_std_s_ext[] = | |
1228 | { | |
23ff54c2 | 1229 | {"svinval", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, |
c9f27991 NC |
1230 | {NULL, 0, 0, 0, 0} |
1231 | }; | |
1232 | ||
1233 | static struct riscv_supported_ext riscv_supported_std_h_ext[] = | |
1234 | { | |
1235 | {NULL, 0, 0, 0, 0} | |
e601909a NC |
1236 | }; |
1237 | ||
c9f27991 | 1238 | static struct riscv_supported_ext riscv_supported_std_zxm_ext[] = |
e601909a | 1239 | { |
c9f27991 NC |
1240 | {NULL, 0, 0, 0, 0} |
1241 | }; | |
1242 | ||
1243 | const struct riscv_supported_ext *riscv_all_supported_ext[] = | |
1244 | { | |
1245 | riscv_supported_std_ext, | |
1246 | riscv_supported_std_z_ext, | |
1247 | riscv_supported_std_s_ext, | |
1248 | riscv_supported_std_h_ext, | |
1249 | riscv_supported_std_zxm_ext, | |
e601909a NC |
1250 | NULL |
1251 | }; | |
1252 | ||
1253 | /* ISA extension prefixed name class. Must define them in parsing order. */ | |
1254 | enum riscv_prefix_ext_class | |
1255 | { | |
1256 | RV_ISA_CLASS_Z = 1, | |
1257 | RV_ISA_CLASS_S, | |
1258 | RV_ISA_CLASS_H, | |
1259 | RV_ISA_CLASS_ZXM, | |
1260 | RV_ISA_CLASS_X, | |
1261 | RV_ISA_CLASS_UNKNOWN | |
1262 | }; | |
1263 | ||
1264 | /* Record the strings of the prefixed extensions, and their corresponding | |
1265 | classes. The more letters of the prefix string, the more forward it must | |
1266 | be defined. Otherwise, the riscv_get_prefix_class will map it to the | |
1267 | wrong classes. */ | |
1268 | struct riscv_parse_prefix_config | |
1269 | { | |
1270 | /* Class of the extension. */ | |
1271 | enum riscv_prefix_ext_class class; | |
1272 | ||
1273 | /* Prefix string for error printing and internal parser usage. */ | |
1274 | const char *prefix; | |
1275 | }; | |
1276 | static const struct riscv_parse_prefix_config parse_config[] = | |
1277 | { | |
1278 | {RV_ISA_CLASS_ZXM, "zxm"}, | |
1279 | {RV_ISA_CLASS_Z, "z"}, | |
1280 | {RV_ISA_CLASS_S, "s"}, | |
1281 | {RV_ISA_CLASS_H, "h"}, | |
1282 | {RV_ISA_CLASS_X, "x"}, | |
1283 | {RV_ISA_CLASS_UNKNOWN, NULL} | |
1284 | }; | |
1285 | ||
1286 | /* Get the prefixed name class for the extensions, the class also | |
1287 | means the order of the prefixed extensions. */ | |
1288 | ||
1289 | static enum riscv_prefix_ext_class | |
1290 | riscv_get_prefix_class (const char *arch) | |
1291 | { | |
1292 | int i = 0; | |
1293 | while (parse_config[i].class != RV_ISA_CLASS_UNKNOWN) | |
1294 | { | |
1295 | if (strncmp (arch, parse_config[i].prefix, | |
1296 | strlen (parse_config[i].prefix)) == 0) | |
1297 | return parse_config[i].class; | |
1298 | i++; | |
1299 | } | |
1300 | return RV_ISA_CLASS_UNKNOWN; | |
1301 | } | |
1302 | ||
1303 | /* Check KNOWN_EXTS to see if the EXT is supported. */ | |
1304 | ||
1305 | static bool | |
1306 | riscv_known_prefixed_ext (const char *ext, | |
c9f27991 | 1307 | struct riscv_supported_ext *known_exts) |
e601909a NC |
1308 | { |
1309 | size_t i; | |
c9f27991 NC |
1310 | for (i = 0; known_exts[i].name != NULL; ++i) |
1311 | if (strcmp (ext, known_exts[i].name) == 0) | |
e601909a NC |
1312 | return true; |
1313 | return false; | |
1314 | } | |
7ef19aa6 | 1315 | |
69a61890 NC |
1316 | /* Check whether the prefixed extension is recognized or not. Return |
1317 | true if recognized, otehrwise return false. */ | |
e601909a NC |
1318 | |
1319 | static bool | |
69a61890 | 1320 | riscv_recognized_prefixed_ext (const char *ext) |
e601909a NC |
1321 | { |
1322 | enum riscv_prefix_ext_class class = riscv_get_prefix_class (ext); | |
1323 | switch (class) | |
1324 | { | |
1325 | case RV_ISA_CLASS_Z: | |
c9f27991 | 1326 | return riscv_known_prefixed_ext (ext, riscv_supported_std_z_ext); |
e601909a | 1327 | case RV_ISA_CLASS_ZXM: |
c9f27991 | 1328 | return riscv_known_prefixed_ext (ext, riscv_supported_std_zxm_ext); |
e601909a | 1329 | case RV_ISA_CLASS_S: |
c9f27991 | 1330 | return riscv_known_prefixed_ext (ext, riscv_supported_std_s_ext); |
e601909a | 1331 | case RV_ISA_CLASS_H: |
c9f27991 | 1332 | return riscv_known_prefixed_ext (ext, riscv_supported_std_h_ext); |
e601909a | 1333 | case RV_ISA_CLASS_X: |
69a61890 | 1334 | /* Only the single x is unrecognized. */ |
e601909a NC |
1335 | if (strcmp (ext, "x") != 0) |
1336 | return true; | |
1337 | default: | |
1338 | break; | |
1339 | } | |
1340 | return false; | |
1341 | } | |
1342 | ||
3a3e333f | 1343 | /* Canonical order for single letter extensions. */ |
c4dd8eb5 | 1344 | static const char riscv_ext_canonical_order[] = "eigmafdqlcbkjtpvn"; |
3a3e333f | 1345 | |
e601909a | 1346 | /* Array is used to compare the orders of standard extensions quickly. */ |
dfe92496 NC |
1347 | static int riscv_ext_order[26] = {0}; |
1348 | ||
e601909a NC |
1349 | /* Init the riscv_ext_order array. */ |
1350 | ||
1351 | static void | |
1352 | riscv_init_ext_order (void) | |
1353 | { | |
1354 | static bool inited = false; | |
e601909a NC |
1355 | if (inited) |
1356 | return; | |
1357 | ||
1358 | /* The orders of all standard extensions are positive. */ | |
c9f27991 | 1359 | int order = 1; |
e601909a | 1360 | |
3a3e333f KC |
1361 | for (const char *ext = &riscv_ext_canonical_order[0]; *ext; ++ext) |
1362 | riscv_ext_order[(*ext - 'a')] = order++; | |
e601909a NC |
1363 | |
1364 | /* Some of the prefixed keyword are not single letter, so we set | |
1365 | their prefixed orders in the riscv_compare_subsets directly, | |
1366 | not through the riscv_ext_order. */ | |
1367 | ||
1368 | inited = true; | |
1369 | } | |
1370 | ||
dfe92496 NC |
1371 | /* Similar to the strcmp. It returns an integer less than, equal to, |
1372 | or greater than zero if `subset2` is found, respectively, to be less | |
e601909a NC |
1373 | than, to match, or be greater than `subset1`. |
1374 | ||
1375 | The order values, | |
1376 | Zero: Preserved keywords. | |
1377 | Positive number: Standard extensions. | |
1378 | Negative number: Prefixed keywords. */ | |
dfe92496 | 1379 | |
4c0e540e | 1380 | int |
dfe92496 | 1381 | riscv_compare_subsets (const char *subset1, const char *subset2) |
7ef19aa6 | 1382 | { |
dfe92496 NC |
1383 | int order1 = riscv_ext_order[(*subset1 - 'a')]; |
1384 | int order2 = riscv_ext_order[(*subset2 - 'a')]; | |
7ef19aa6 | 1385 | |
dfe92496 NC |
1386 | /* Compare the standard extension first. */ |
1387 | if (order1 > 0 && order2 > 0) | |
1388 | return order1 - order2; | |
7ef19aa6 | 1389 | |
e601909a NC |
1390 | /* Set the prefixed orders to negative numbers. */ |
1391 | enum riscv_prefix_ext_class class1 = riscv_get_prefix_class (subset1); | |
1392 | enum riscv_prefix_ext_class class2 = riscv_get_prefix_class (subset2); | |
1393 | ||
1394 | if (class1 != RV_ISA_CLASS_UNKNOWN) | |
1395 | order1 = - (int) class1; | |
1396 | if (class2 != RV_ISA_CLASS_UNKNOWN) | |
1397 | order2 = - (int) class2; | |
1398 | ||
1399 | if (order1 == order2) | |
dfe92496 NC |
1400 | { |
1401 | /* Compare the standard addition z extensions. */ | |
e601909a | 1402 | if (class1 == RV_ISA_CLASS_Z) |
dfe92496 NC |
1403 | { |
1404 | order1 = riscv_ext_order[(*++subset1 - 'a')]; | |
1405 | order2 = riscv_ext_order[(*++subset2 - 'a')]; | |
1406 | if (order1 != order2) | |
1407 | return order1 - order2; | |
1408 | } | |
1409 | return strcasecmp (++subset1, ++subset2); | |
1410 | } | |
1411 | ||
1412 | return order2 - order1; | |
1413 | } | |
1414 | ||
1415 | /* Find subset in the list. Return TRUE and set `current` to the subset | |
1416 | if it is found. Otherwise, return FALSE and set `current` to the place | |
1417 | where we should insert the subset. However, return FALSE with the NULL | |
1418 | `current` means we should insert the subset at the head of subset list, | |
1419 | if needed. */ | |
1420 | ||
0a1b45a2 | 1421 | bool |
dfe92496 NC |
1422 | riscv_lookup_subset (const riscv_subset_list_t *subset_list, |
1423 | const char *subset, | |
1424 | riscv_subset_t **current) | |
1425 | { | |
1426 | riscv_subset_t *s, *pre_s = NULL; | |
1427 | ||
cb959bd8 NC |
1428 | /* If the subset is added in order, then just add it at the tail. */ |
1429 | if (subset_list->tail != NULL | |
1430 | && riscv_compare_subsets (subset_list->tail->name, subset) < 0) | |
1431 | { | |
1432 | *current = subset_list->tail; | |
1433 | return false; | |
1434 | } | |
1435 | ||
dfe92496 NC |
1436 | for (s = subset_list->head; |
1437 | s != NULL; | |
1438 | pre_s = s, s = s->next) | |
1439 | { | |
1440 | int cmp = riscv_compare_subsets (s->name, subset); | |
1441 | if (cmp == 0) | |
1442 | { | |
1443 | *current = s; | |
0a1b45a2 | 1444 | return true; |
dfe92496 NC |
1445 | } |
1446 | else if (cmp > 0) | |
1447 | break; | |
1448 | } | |
1449 | *current = pre_s; | |
cb959bd8 | 1450 | |
0a1b45a2 | 1451 | return false; |
7ef19aa6 NC |
1452 | } |
1453 | ||
cb959bd8 NC |
1454 | /* Add the extension to the subset list. Search the |
1455 | list first, and then find the right place to add. */ | |
7ef19aa6 NC |
1456 | |
1457 | void | |
1458 | riscv_add_subset (riscv_subset_list_t *subset_list, | |
1459 | const char *subset, | |
1460 | int major, | |
1461 | int minor) | |
dfe92496 NC |
1462 | { |
1463 | riscv_subset_t *current, *new; | |
1464 | ||
1465 | if (riscv_lookup_subset (subset_list, subset, ¤t)) | |
de3a913d | 1466 | return; |
dfe92496 NC |
1467 | |
1468 | new = xmalloc (sizeof *new); | |
1469 | new->name = xstrdup (subset); | |
1470 | new->major_version = major; | |
1471 | new->minor_version = minor; | |
1472 | new->next = NULL; | |
1473 | ||
1474 | if (current != NULL) | |
1475 | { | |
1476 | new->next = current->next; | |
1477 | current->next = new; | |
1478 | } | |
1479 | else | |
1480 | { | |
1481 | new->next = subset_list->head; | |
1482 | subset_list->head = new; | |
1483 | } | |
dfe92496 | 1484 | |
cb959bd8 NC |
1485 | if (new->next == NULL) |
1486 | subset_list->tail = new; | |
1487 | } | |
dfe92496 | 1488 | |
c9f27991 NC |
1489 | /* Get the default versions from the riscv_supported_*ext tables. */ |
1490 | ||
1491 | static void | |
f786c359 | 1492 | riscv_get_default_ext_version (enum riscv_spec_class *default_isa_spec, |
c9f27991 NC |
1493 | const char *name, |
1494 | int *major_version, | |
1495 | int *minor_version) | |
1496 | { | |
f786c359 NC |
1497 | if (name == NULL |
1498 | || default_isa_spec == NULL | |
1499 | || *default_isa_spec == ISA_SPEC_CLASS_NONE) | |
c9f27991 NC |
1500 | return; |
1501 | ||
1502 | struct riscv_supported_ext *table = NULL; | |
1503 | enum riscv_prefix_ext_class class = riscv_get_prefix_class (name); | |
1504 | switch (class) | |
1505 | { | |
1506 | case RV_ISA_CLASS_ZXM: table = riscv_supported_std_zxm_ext; break; | |
1507 | case RV_ISA_CLASS_Z: table = riscv_supported_std_z_ext; break; | |
1508 | case RV_ISA_CLASS_S: table = riscv_supported_std_s_ext; break; | |
1509 | case RV_ISA_CLASS_H: table = riscv_supported_std_h_ext; break; | |
1510 | case RV_ISA_CLASS_X: | |
1511 | break; | |
1512 | default: | |
1513 | table = riscv_supported_std_ext; | |
1514 | } | |
1515 | ||
1516 | int i = 0; | |
1517 | while (table != NULL && table[i].name != NULL) | |
1518 | { | |
1519 | if (strcmp (table[i].name, name) == 0 | |
1520 | && (table[i].isa_spec_class == ISA_SPEC_CLASS_DRAFT | |
f786c359 | 1521 | || table[i].isa_spec_class == *default_isa_spec)) |
c9f27991 NC |
1522 | { |
1523 | *major_version = table[i].major_version; | |
1524 | *minor_version = table[i].minor_version; | |
1525 | return; | |
1526 | } | |
1527 | i++; | |
1528 | } | |
1529 | } | |
1530 | ||
cb959bd8 | 1531 | /* Find the default versions for the extension before adding them to |
7ef19aa6 NC |
1532 | the subset list, if their versions are RISCV_UNKNOWN_VERSION. |
1533 | Afterwards, report errors if we can not find their default versions. */ | |
1534 | ||
1535 | static void | |
1536 | riscv_parse_add_subset (riscv_parse_subset_t *rps, | |
1537 | const char *subset, | |
1538 | int major, | |
dfe92496 | 1539 | int minor, |
0a1b45a2 | 1540 | bool implicit) |
7ef19aa6 NC |
1541 | { |
1542 | int major_version = major; | |
1543 | int minor_version = minor; | |
1544 | ||
c9f27991 | 1545 | if (major_version == RISCV_UNKNOWN_VERSION |
7ef19aa6 | 1546 | || minor_version == RISCV_UNKNOWN_VERSION) |
c9f27991 NC |
1547 | riscv_get_default_ext_version (rps->isa_spec, subset, |
1548 | &major_version, &minor_version); | |
7ef19aa6 | 1549 | |
f0bae255 NC |
1550 | /* We don't care the versions of the implicit extensions. */ |
1551 | if (!implicit | |
dfe92496 NC |
1552 | && (major_version == RISCV_UNKNOWN_VERSION |
1553 | || minor_version == RISCV_UNKNOWN_VERSION)) | |
7ef19aa6 NC |
1554 | { |
1555 | if (subset[0] == 'x') | |
1556 | rps->error_handler | |
1557 | (_("x ISA extension `%s' must be set with the versions"), | |
1558 | subset); | |
aed44286 NC |
1559 | /* Allow old ISA spec can recognize zicsr and zifencei. */ |
1560 | else if (strcmp (subset, "zicsr") != 0 | |
1561 | && strcmp (subset, "zifencei") != 0) | |
7ef19aa6 NC |
1562 | rps->error_handler |
1563 | (_("cannot find default versions of the ISA extension `%s'"), | |
1564 | subset); | |
1565 | return; | |
1566 | } | |
1567 | ||
cb959bd8 NC |
1568 | riscv_add_subset (rps->subset_list, subset, |
1569 | major_version, minor_version); | |
7ef19aa6 NC |
1570 | } |
1571 | ||
1572 | /* Release subset list. */ | |
1573 | ||
1574 | void | |
1575 | riscv_release_subset_list (riscv_subset_list_t *subset_list) | |
1576 | { | |
1577 | while (subset_list->head != NULL) | |
1578 | { | |
1579 | riscv_subset_t *next = subset_list->head->next; | |
1580 | free ((void *)subset_list->head->name); | |
1581 | free (subset_list->head); | |
1582 | subset_list->head = next; | |
1583 | } | |
1584 | ||
1585 | subset_list->tail = NULL; | |
1586 | } | |
1587 | ||
d541518b | 1588 | /* Parsing extension version. |
1080bf78 JW |
1589 | |
1590 | Return Value: | |
1591 | Points to the end of version | |
1592 | ||
1593 | Arguments: | |
1080bf78 | 1594 | `p`: Curent parsing position. |
7ef19aa6 | 1595 | `major_version`: Parsed major version. |
69a61890 | 1596 | `minor_version`: Parsed minor version. */ |
1080bf78 JW |
1597 | |
1598 | static const char * | |
69a61890 | 1599 | riscv_parsing_subset_version (const char *p, |
7ef19aa6 | 1600 | int *major_version, |
69a61890 | 1601 | int *minor_version) |
1080bf78 | 1602 | { |
0a1b45a2 | 1603 | bool major_p = true; |
7ef19aa6 | 1604 | int version = 0; |
1080bf78 JW |
1605 | char np; |
1606 | ||
8f595e9b NC |
1607 | *major_version = 0; |
1608 | *minor_version = 0; | |
1609 | for (; *p; ++p) | |
1080bf78 JW |
1610 | { |
1611 | if (*p == 'p') | |
1612 | { | |
1613 | np = *(p + 1); | |
1614 | ||
3a6a0158 | 1615 | /* Might be beginning of `p` extension. */ |
1080bf78 | 1616 | if (!ISDIGIT (np)) |
3a6a0158 | 1617 | break; |
1080bf78 | 1618 | |
8f595e9b | 1619 | *major_version = version; |
0a1b45a2 | 1620 | major_p = false; |
1080bf78 JW |
1621 | version = 0; |
1622 | } | |
1623 | else if (ISDIGIT (*p)) | |
1624 | version = (version * 10) + (*p - '0'); | |
1625 | else | |
1626 | break; | |
1627 | } | |
1628 | ||
1629 | if (major_p) | |
8f595e9b | 1630 | *major_version = version; |
1080bf78 | 1631 | else |
8f595e9b | 1632 | *minor_version = version; |
1080bf78 | 1633 | |
7ef19aa6 NC |
1634 | /* We can not find any version in string. */ |
1635 | if (*major_version == 0 && *minor_version == 0) | |
1636 | { | |
1637 | *major_version = RISCV_UNKNOWN_VERSION; | |
1638 | *minor_version = RISCV_UNKNOWN_VERSION; | |
1639 | } | |
1640 | ||
1080bf78 JW |
1641 | return p; |
1642 | } | |
1643 | ||
1080bf78 JW |
1644 | /* Parsing function for standard extensions. |
1645 | ||
1646 | Return Value: | |
1647 | Points to the end of extensions. | |
1648 | ||
1649 | Arguments: | |
d541518b | 1650 | `rps`: Hooks and status for parsing extensions. |
cb959bd8 | 1651 | `arch`: Full ISA string. |
1080bf78 JW |
1652 | `p`: Curent parsing position. */ |
1653 | ||
1654 | static const char * | |
1655 | riscv_parse_std_ext (riscv_parse_subset_t *rps, | |
cb959bd8 | 1656 | const char *arch, |
8f595e9b | 1657 | const char *p) |
1080bf78 | 1658 | { |
1080bf78 | 1659 | /* First letter must start with i, e or g. */ |
c9f27991 | 1660 | if (*p != 'e' && *p != 'i' && *p != 'g') |
1080bf78 | 1661 | { |
c9f27991 NC |
1662 | rps->error_handler |
1663 | (_("%s: first ISA extension must be `e', `i' or `g'"), | |
1664 | arch); | |
1665 | return NULL; | |
1080bf78 JW |
1666 | } |
1667 | ||
8f595e9b | 1668 | while (p != NULL && *p != '\0') |
1080bf78 | 1669 | { |
e601909a NC |
1670 | /* Stop when we parsed the known prefix class. */ |
1671 | enum riscv_prefix_ext_class class = riscv_get_prefix_class (p); | |
1672 | if (class != RV_ISA_CLASS_UNKNOWN) | |
1080bf78 JW |
1673 | break; |
1674 | ||
1675 | if (*p == '_') | |
1676 | { | |
1677 | p++; | |
1678 | continue; | |
1679 | } | |
1680 | ||
c9f27991 NC |
1681 | bool implicit = false; |
1682 | int major = RISCV_UNKNOWN_VERSION; | |
1683 | int minor = RISCV_UNKNOWN_VERSION; | |
1684 | char subset[2] = {0, 0}; | |
1685 | ||
1686 | subset[0] = *p; | |
1080bf78 | 1687 | |
c9f27991 NC |
1688 | /* Check if the standard extension is supported. */ |
1689 | if (riscv_ext_order[(subset[0] - 'a')] == 0) | |
1080bf78 | 1690 | { |
c9f27991 NC |
1691 | rps->error_handler |
1692 | (_("%s: unknown standard ISA extension `%c'"), | |
1693 | arch, subset[0]); | |
1080bf78 JW |
1694 | return NULL; |
1695 | } | |
1696 | ||
c9f27991 NC |
1697 | /* Checking canonical order. */ |
1698 | if (rps->subset_list->tail != NULL | |
1699 | && riscv_compare_subsets (rps->subset_list->tail->name, subset) > 0) | |
1700 | { | |
1701 | rps->error_handler | |
1702 | (_("%s: standard ISA extension `%c' is not " | |
1703 | "in canonical order"), arch, subset[0]); | |
1704 | return NULL; | |
1705 | } | |
1706 | ||
69a61890 | 1707 | p = riscv_parsing_subset_version (++p, &major, &minor); |
c9f27991 NC |
1708 | /* Added g as an implicit extension. */ |
1709 | if (subset[0] == 'g') | |
1710 | { | |
1711 | implicit = true; | |
1712 | major = RISCV_UNKNOWN_VERSION; | |
1713 | minor = RISCV_UNKNOWN_VERSION; | |
1714 | } | |
1715 | riscv_parse_add_subset (rps, subset, major, minor, implicit); | |
1080bf78 | 1716 | } |
d541518b | 1717 | |
1080bf78 JW |
1718 | return p; |
1719 | } | |
1720 | ||
d541518b NC |
1721 | /* Parsing function for prefixed extensions. |
1722 | ||
1723 | Return Value: | |
1724 | Points to the end of extension. | |
1725 | ||
1726 | Arguments: | |
1727 | `rps`: Hooks and status for parsing extensions. | |
cb959bd8 | 1728 | `arch`: Full ISA string. |
e3839c10 | 1729 | `p`: Curent parsing position. */ |
1080bf78 JW |
1730 | |
1731 | static const char * | |
403d1bd9 | 1732 | riscv_parse_prefixed_ext (riscv_parse_subset_t *rps, |
cb959bd8 | 1733 | const char *arch, |
e601909a | 1734 | const char *p) |
1080bf78 | 1735 | { |
7ef19aa6 NC |
1736 | int major_version; |
1737 | int minor_version; | |
403d1bd9 | 1738 | const char *last_name; |
e601909a | 1739 | enum riscv_prefix_ext_class class; |
1080bf78 JW |
1740 | |
1741 | while (*p) | |
1742 | { | |
1743 | if (*p == '_') | |
1744 | { | |
1745 | p++; | |
1746 | continue; | |
1747 | } | |
1748 | ||
403d1bd9 | 1749 | class = riscv_get_prefix_class (p); |
e601909a NC |
1750 | if (class == RV_ISA_CLASS_UNKNOWN) |
1751 | { | |
1752 | rps->error_handler | |
cb959bd8 NC |
1753 | (_("%s: unknown prefix class for the ISA extension `%s'"), |
1754 | arch, p); | |
e601909a NC |
1755 | return NULL; |
1756 | } | |
1080bf78 JW |
1757 | |
1758 | char *subset = xstrdup (p); | |
1759 | char *q = subset; | |
1760 | const char *end_of_version; | |
1761 | ||
69a61890 NC |
1762 | /* Extract the whole prefixed extension by '_'. */ |
1763 | while (*++q != '\0' && *q != '_') | |
1080bf78 | 1764 | ; |
69a61890 NC |
1765 | /* Look forward to the first letter which is not <major>p<minor>. */ |
1766 | bool find_any_version = false; | |
1767 | bool find_minor_version = false; | |
1768 | while (1) | |
1769 | { | |
1770 | q--; | |
1771 | if (ISDIGIT (*q)) | |
1772 | find_any_version = true; | |
1773 | else if (find_any_version | |
1774 | && !find_minor_version | |
1775 | && *q == 'p' | |
1776 | && ISDIGIT (*(q - 1))) | |
1777 | find_minor_version = true; | |
1778 | else | |
1779 | break; | |
1780 | } | |
1781 | q++; | |
1782 | ||
1783 | /* Check if the end of extension is 'p' or not. If yes, then | |
1784 | the second letter from the end cannot be number. */ | |
1785 | if (*(q - 1) == 'p' && ISDIGIT (*(q - 2))) | |
1786 | { | |
1787 | *q = '\0'; | |
1788 | rps->error_handler | |
1789 | (_("%s: invalid prefixed ISA extension `%s' ends with <number>p"), | |
1790 | arch, subset); | |
1791 | free (subset); | |
1792 | return NULL; | |
1793 | } | |
1080bf78 JW |
1794 | |
1795 | end_of_version = | |
69a61890 | 1796 | riscv_parsing_subset_version (q, &major_version, &minor_version); |
1080bf78 | 1797 | *q = '\0'; |
7ef19aa6 NC |
1798 | if (end_of_version == NULL) |
1799 | { | |
1800 | free (subset); | |
1801 | return NULL; | |
1802 | } | |
1803 | ||
403d1bd9 | 1804 | /* Check that the extension name is well-formed. */ |
fe1f847d | 1805 | if (rps->check_unknown_prefixed_ext |
69a61890 | 1806 | && !riscv_recognized_prefixed_ext (subset)) |
403d1bd9 JW |
1807 | { |
1808 | rps->error_handler | |
cb959bd8 NC |
1809 | (_("%s: unknown prefixed ISA extension `%s'"), |
1810 | arch, subset); | |
403d1bd9 JW |
1811 | free (subset); |
1812 | return NULL; | |
1813 | } | |
1814 | ||
d541518b | 1815 | /* Check that the extension isn't duplicate. */ |
403d1bd9 | 1816 | last_name = rps->subset_list->tail->name; |
403d1bd9 JW |
1817 | if (!strcasecmp (last_name, subset)) |
1818 | { | |
8f595e9b | 1819 | rps->error_handler |
cb959bd8 NC |
1820 | (_("%s: duplicate prefixed ISA extension `%s'"), |
1821 | arch, subset); | |
403d1bd9 JW |
1822 | free (subset); |
1823 | return NULL; | |
1824 | } | |
1825 | ||
e601909a | 1826 | /* Check that the extension is in expected order. */ |
6729e2c2 | 1827 | if (riscv_compare_subsets (last_name, subset) > 0) |
403d1bd9 | 1828 | { |
8f595e9b | 1829 | rps->error_handler |
cb959bd8 | 1830 | (_("%s: prefixed ISA extension `%s' is not in expected " |
d541518b | 1831 | "order. It must come before `%s'"), |
cb959bd8 | 1832 | arch, subset, last_name); |
403d1bd9 JW |
1833 | free (subset); |
1834 | return NULL; | |
1835 | } | |
1836 | ||
7ef19aa6 NC |
1837 | riscv_parse_add_subset (rps, subset, |
1838 | major_version, | |
0a1b45a2 | 1839 | minor_version, false); |
1080bf78 | 1840 | p += end_of_version - subset; |
e9cf3691 | 1841 | free (subset); |
1080bf78 JW |
1842 | |
1843 | if (*p != '\0' && *p != '_') | |
1844 | { | |
d541518b | 1845 | rps->error_handler |
cb959bd8 NC |
1846 | (_("%s: prefixed ISA extension must separate with _"), |
1847 | arch); | |
1080bf78 JW |
1848 | return NULL; |
1849 | } | |
1850 | } | |
1851 | ||
1852 | return p; | |
1853 | } | |
1854 | ||
dcd709e0 | 1855 | /* Add the implicit extensions. */ |
dfe92496 NC |
1856 | |
1857 | static void | |
1858 | riscv_parse_add_implicit_subsets (riscv_parse_subset_t *rps) | |
1859 | { | |
7671eff8 NC |
1860 | struct riscv_implicit_subset *t = riscv_implicit_subsets; |
1861 | for (; t->subset_name; t++) | |
dfe92496 | 1862 | { |
7671eff8 NC |
1863 | riscv_subset_t *subset = NULL; |
1864 | if (riscv_lookup_subset (rps->subset_list, t->subset_name, &subset) | |
1865 | && t->check_func (t->implicit_name, subset)) | |
1866 | riscv_parse_add_subset (rps, t->implicit_name, | |
1867 | RISCV_UNKNOWN_VERSION, | |
1868 | RISCV_UNKNOWN_VERSION, true); | |
00d4d1b0 | 1869 | } |
dfe92496 NC |
1870 | } |
1871 | ||
cb959bd8 NC |
1872 | /* Check extensions conflicts. */ |
1873 | ||
1874 | static bool | |
1875 | riscv_parse_check_conflicts (riscv_parse_subset_t *rps) | |
1876 | { | |
1877 | riscv_subset_t *subset = NULL; | |
1878 | int xlen = *rps->xlen; | |
1879 | bool no_conflict = true; | |
1880 | ||
1881 | if (riscv_lookup_subset (rps->subset_list, "e", &subset) | |
1882 | && xlen > 32) | |
1883 | { | |
1884 | rps->error_handler | |
1885 | (_("rv%d does not support the `e' extension"), xlen); | |
1886 | no_conflict = false; | |
1887 | } | |
1888 | if (riscv_lookup_subset (rps->subset_list, "q", &subset) | |
1889 | && xlen < 64) | |
1890 | { | |
1891 | rps->error_handler | |
1892 | (_("rv%d does not support the `q' extension"), xlen); | |
1893 | no_conflict = false; | |
1894 | } | |
1895 | if (riscv_lookup_subset (rps->subset_list, "e", &subset) | |
1896 | && riscv_lookup_subset (rps->subset_list, "f", &subset)) | |
1897 | { | |
1898 | rps->error_handler | |
1899 | (_("rv32e does not support the `f' extension")); | |
1900 | no_conflict = false; | |
1901 | } | |
da05b70e | 1902 | if (riscv_lookup_subset (rps->subset_list, "zfinx", &subset) |
1903 | && riscv_lookup_subset (rps->subset_list, "f", &subset)) | |
1904 | { | |
1905 | rps->error_handler | |
1906 | (_("`zfinx' is conflict with the `f/d/q' extension")); | |
1907 | no_conflict = false; | |
1908 | } | |
65e4a99a NC |
1909 | |
1910 | bool support_zve = false; | |
1911 | bool support_zvl = false; | |
1912 | riscv_subset_t *s = rps->subset_list->head; | |
1913 | for (; s != NULL; s = s->next) | |
1914 | { | |
1915 | if (!support_zve | |
1916 | && strncmp (s->name, "zve", 3) == 0) | |
1917 | support_zve = true; | |
1918 | if (!support_zvl | |
1919 | && strncmp (s->name, "zvl", 3) == 0) | |
1920 | support_zvl = true; | |
1921 | if (support_zve && support_zvl) | |
1922 | break; | |
1923 | } | |
1924 | if (support_zvl && !support_zve) | |
1925 | { | |
1926 | rps->error_handler | |
1927 | (_("zvl*b extensions need to enable either `v' or `zve' extension")); | |
1928 | no_conflict = false; | |
1929 | } | |
1930 | ||
cb959bd8 NC |
1931 | return no_conflict; |
1932 | } | |
1933 | ||
c9f27991 NC |
1934 | /* Set the default subset list according to the default_enable field |
1935 | of riscv_supported_*ext tables. */ | |
1936 | ||
1937 | static void | |
1938 | riscv_set_default_arch (riscv_parse_subset_t *rps) | |
1939 | { | |
1940 | unsigned long enable = EXT_DEFAULT; | |
1941 | int i, j; | |
1942 | for (i = 0; riscv_all_supported_ext[i] != NULL; i++) | |
1943 | { | |
1944 | const struct riscv_supported_ext *table = riscv_all_supported_ext[i]; | |
1945 | for (j = 0; table[j].name != NULL; j++) | |
1946 | { | |
1947 | bool implicit = false; | |
1948 | if (strcmp (table[j].name, "g") == 0) | |
1949 | implicit = true; | |
1950 | if (table[j].default_enable & enable) | |
1951 | riscv_parse_add_subset (rps, table[j].name, | |
1952 | RISCV_UNKNOWN_VERSION, | |
1953 | RISCV_UNKNOWN_VERSION, implicit); | |
1954 | } | |
1955 | } | |
1956 | } | |
1957 | ||
dcd709e0 | 1958 | /* Function for parsing ISA string. |
1080bf78 JW |
1959 | |
1960 | Return Value: | |
1961 | Return TRUE on success. | |
1962 | ||
1963 | Arguments: | |
d541518b | 1964 | `rps`: Hooks and status for parsing extensions. |
dcd709e0 | 1965 | `arch`: Full ISA string. */ |
1080bf78 | 1966 | |
0a1b45a2 | 1967 | bool |
1080bf78 JW |
1968 | riscv_parse_subset (riscv_parse_subset_t *rps, |
1969 | const char *arch) | |
1970 | { | |
e8d4709e | 1971 | const char *p; |
1080bf78 | 1972 | |
c9f27991 NC |
1973 | /* Init the riscv_ext_order array to compare the order of extensions |
1974 | quickly. */ | |
1975 | riscv_init_ext_order (); | |
1976 | ||
1977 | if (arch == NULL) | |
1978 | { | |
1979 | riscv_set_default_arch (rps); | |
1980 | riscv_parse_add_implicit_subsets (rps); | |
1981 | return riscv_parse_check_conflicts (rps); | |
1982 | } | |
1983 | ||
e8d4709e NC |
1984 | for (p = arch; *p != '\0'; p++) |
1985 | { | |
1986 | if (ISUPPER (*p)) | |
1987 | { | |
1988 | rps->error_handler | |
cb959bd8 | 1989 | (_("%s: ISA string cannot contain uppercase letters"), |
e8d4709e | 1990 | arch); |
0a1b45a2 | 1991 | return false; |
e8d4709e NC |
1992 | } |
1993 | } | |
1994 | ||
1995 | p = arch; | |
3f3328b8 | 1996 | if (startswith (p, "rv32")) |
1080bf78 JW |
1997 | { |
1998 | *rps->xlen = 32; | |
1999 | p += 4; | |
2000 | } | |
3f3328b8 | 2001 | else if (startswith (p, "rv64")) |
1080bf78 JW |
2002 | { |
2003 | *rps->xlen = 64; | |
2004 | p += 4; | |
2005 | } | |
2006 | else | |
2007 | { | |
c9f27991 NC |
2008 | /* ISA string shouldn't be NULL or empty here. For linker, |
2009 | it might be empty when we failed to merge the ISA string | |
2010 | in the riscv_merge_attributes. For assembler, we might | |
2011 | give an empty string by .attribute arch, "" or -march=. | |
2012 | However, We have already issued the correct error message | |
2013 | in another side, so do not issue this error when the ISA | |
2014 | string is empty. */ | |
72bd6912 KC |
2015 | if (strlen (arch)) |
2016 | rps->error_handler ( | |
cb959bd8 | 2017 | _("%s: ISA string must begin with rv32 or rv64"), |
72bd6912 | 2018 | arch); |
0a1b45a2 | 2019 | return false; |
1080bf78 JW |
2020 | } |
2021 | ||
2022 | /* Parsing standard extension. */ | |
2023 | p = riscv_parse_std_ext (rps, arch, p); | |
2024 | ||
2025 | if (p == NULL) | |
0a1b45a2 | 2026 | return false; |
1080bf78 | 2027 | |
0f94906f TO |
2028 | /* Parse prefixed extensions. */ |
2029 | p = riscv_parse_prefixed_ext (rps, arch, p); | |
1080bf78 | 2030 | |
0f94906f TO |
2031 | if (p == NULL) |
2032 | return false; | |
1080bf78 | 2033 | |
dfe92496 NC |
2034 | /* Finally add implicit extensions according to the current |
2035 | extensions. */ | |
2036 | riscv_parse_add_implicit_subsets (rps); | |
2037 | ||
d541518b | 2038 | /* Check the conflicts. */ |
cb959bd8 | 2039 | return riscv_parse_check_conflicts (rps); |
1080bf78 | 2040 | } |
2dc8dd17 JW |
2041 | |
2042 | /* Return the number of digits for the input. */ | |
2043 | ||
8f595e9b | 2044 | size_t |
2dc8dd17 JW |
2045 | riscv_estimate_digit (unsigned num) |
2046 | { | |
2047 | size_t digit = 0; | |
2048 | if (num == 0) | |
2049 | return 1; | |
2050 | ||
2051 | for (digit = 0; num ; num /= 10) | |
2052 | digit++; | |
2053 | ||
2054 | return digit; | |
2055 | } | |
2056 | ||
2057 | /* Auxiliary function to estimate string length of subset list. */ | |
2058 | ||
2059 | static size_t | |
2060 | riscv_estimate_arch_strlen1 (const riscv_subset_t *subset) | |
2061 | { | |
2062 | if (subset == NULL) | |
2063 | return 6; /* For rv32/rv64/rv128 and string terminator. */ | |
2064 | ||
2065 | return riscv_estimate_arch_strlen1 (subset->next) | |
2066 | + strlen (subset->name) | |
2067 | + riscv_estimate_digit (subset->major_version) | |
dcd709e0 | 2068 | + 1 /* For version seperator 'p'. */ |
2dc8dd17 JW |
2069 | + riscv_estimate_digit (subset->minor_version) |
2070 | + 1 /* For underscore. */; | |
2071 | } | |
2072 | ||
2073 | /* Estimate the string length of this subset list. */ | |
2074 | ||
2075 | static size_t | |
2076 | riscv_estimate_arch_strlen (const riscv_subset_list_t *subset_list) | |
2077 | { | |
2078 | return riscv_estimate_arch_strlen1 (subset_list->head); | |
2079 | } | |
2080 | ||
2081 | /* Auxiliary function to convert subset info to string. */ | |
2082 | ||
2083 | static void | |
2084 | riscv_arch_str1 (riscv_subset_t *subset, | |
2085 | char *attr_str, char *buf, size_t bufsz) | |
2086 | { | |
2087 | const char *underline = "_"; | |
729a5353 | 2088 | riscv_subset_t *subset_t = subset; |
2dc8dd17 | 2089 | |
729a5353 | 2090 | if (subset_t == NULL) |
2dc8dd17 JW |
2091 | return; |
2092 | ||
dcd709e0 | 2093 | /* No underline between rvXX and i/e. */ |
729a5353 NC |
2094 | if ((strcasecmp (subset_t->name, "i") == 0) |
2095 | || (strcasecmp (subset_t->name, "e") == 0)) | |
2dc8dd17 JW |
2096 | underline = ""; |
2097 | ||
2098 | snprintf (buf, bufsz, "%s%s%dp%d", | |
2099 | underline, | |
729a5353 NC |
2100 | subset_t->name, |
2101 | subset_t->major_version, | |
2102 | subset_t->minor_version); | |
2dc8dd17 JW |
2103 | |
2104 | strncat (attr_str, buf, bufsz); | |
2105 | ||
729a5353 NC |
2106 | /* Skip 'i' extension after 'e', or skip extensions which |
2107 | versions are unknown. */ | |
2108 | while (subset_t->next | |
2109 | && ((strcmp (subset_t->name, "e") == 0 | |
2110 | && strcmp (subset_t->next->name, "i") == 0) | |
2111 | || subset_t->next->major_version == RISCV_UNKNOWN_VERSION | |
2112 | || subset_t->next->minor_version == RISCV_UNKNOWN_VERSION)) | |
2113 | subset_t = subset_t->next; | |
2114 | ||
2115 | riscv_arch_str1 (subset_t->next, attr_str, buf, bufsz); | |
2dc8dd17 JW |
2116 | } |
2117 | ||
dcd709e0 | 2118 | /* Convert subset information into string with explicit versions. */ |
2dc8dd17 JW |
2119 | |
2120 | char * | |
2121 | riscv_arch_str (unsigned xlen, const riscv_subset_list_t *subset) | |
2122 | { | |
2123 | size_t arch_str_len = riscv_estimate_arch_strlen (subset); | |
2124 | char *attr_str = xmalloc (arch_str_len); | |
2125 | char *buf = xmalloc (arch_str_len); | |
2126 | ||
2127 | snprintf (attr_str, arch_str_len, "rv%u", xlen); | |
2128 | ||
2129 | riscv_arch_str1 (subset->head, attr_str, buf, arch_str_len); | |
2130 | free (buf); | |
2131 | ||
2132 | return attr_str; | |
2133 | } | |
edc77c59 | 2134 | |
d3ffd7f7 NC |
2135 | /* Copy the subset in the subset list. */ |
2136 | ||
2137 | static struct riscv_subset_t * | |
2138 | riscv_copy_subset (riscv_subset_list_t *subset_list, | |
2139 | riscv_subset_t *subset) | |
2140 | { | |
2141 | if (subset == NULL) | |
2142 | return NULL; | |
2143 | ||
2144 | riscv_subset_t *new = xmalloc (sizeof *new); | |
2145 | new->name = xstrdup (subset->name); | |
2146 | new->major_version = subset->major_version; | |
2147 | new->minor_version = subset->minor_version; | |
2148 | new->next = riscv_copy_subset (subset_list, subset->next); | |
2149 | ||
2150 | if (subset->next == NULL) | |
2151 | subset_list->tail = new; | |
2152 | ||
2153 | return new; | |
2154 | } | |
2155 | ||
2156 | /* Copy the subset list. */ | |
2157 | ||
2158 | riscv_subset_list_t * | |
2159 | riscv_copy_subset_list (riscv_subset_list_t *subset_list) | |
2160 | { | |
2161 | riscv_subset_list_t *new = xmalloc (sizeof *new); | |
2162 | new->head = riscv_copy_subset (new, subset_list->head); | |
2163 | return new; | |
2164 | } | |
2165 | ||
edc77c59 NC |
2166 | /* Remove the SUBSET from the subset list. */ |
2167 | ||
2168 | static void | |
2169 | riscv_remove_subset (riscv_subset_list_t *subset_list, | |
2170 | const char *subset) | |
2171 | { | |
2172 | riscv_subset_t *current = subset_list->head; | |
2173 | riscv_subset_t *pre = NULL; | |
2174 | for (; current != NULL; pre = current, current = current->next) | |
2175 | { | |
2176 | if (strcmp (current->name, subset) == 0) | |
2177 | { | |
2178 | if (pre == NULL) | |
2179 | subset_list->head = current->next; | |
2180 | else | |
2181 | pre->next = current->next; | |
2182 | if (current->next == NULL) | |
2183 | subset_list->tail = pre; | |
2184 | free ((void *) current->name); | |
2185 | free (current); | |
2186 | break; | |
2187 | } | |
2188 | } | |
2189 | } | |
2190 | ||
2191 | /* Add/Remove an extension to/from the subset list. This is used for | |
d3ffd7f7 | 2192 | the .option rvc or norvc, and .option arch directives. */ |
edc77c59 NC |
2193 | |
2194 | bool | |
2195 | riscv_update_subset (riscv_parse_subset_t *rps, | |
d3ffd7f7 | 2196 | const char *str) |
edc77c59 | 2197 | { |
d3ffd7f7 | 2198 | const char *p = str; |
edc77c59 | 2199 | |
d3ffd7f7 | 2200 | do |
edc77c59 | 2201 | { |
d3ffd7f7 NC |
2202 | int major_version = RISCV_UNKNOWN_VERSION; |
2203 | int minor_version = RISCV_UNKNOWN_VERSION; | |
2204 | ||
2205 | bool removed = false; | |
de3a913d | 2206 | switch (*p) |
d3ffd7f7 NC |
2207 | { |
2208 | case '+': removed = false; break; | |
2209 | case '-': removed = true; break; | |
de3a913d | 2210 | default: |
d3ffd7f7 NC |
2211 | riscv_release_subset_list (rps->subset_list); |
2212 | return riscv_parse_subset (rps, p); | |
d3ffd7f7 | 2213 | } |
de3a913d | 2214 | ++p; |
d3ffd7f7 NC |
2215 | |
2216 | char *subset = xstrdup (p); | |
2217 | char *q = subset; | |
2218 | const char *end_of_version; | |
2219 | /* Extract the whole prefixed extension by ','. */ | |
2220 | while (*q != '\0' && *q != ',') | |
2221 | q++; | |
577bf39f | 2222 | |
d3ffd7f7 NC |
2223 | /* Look forward to the first letter which is not <major>p<minor>. */ |
2224 | bool find_any_version = false; | |
2225 | bool find_minor_version = false; | |
577bf39f NC |
2226 | size_t len = q - subset; |
2227 | size_t i; | |
2228 | for (i = len; i > 0; i--) | |
d3ffd7f7 NC |
2229 | { |
2230 | q--; | |
2231 | if (ISDIGIT (*q)) | |
2232 | find_any_version = true; | |
2233 | else if (find_any_version | |
2234 | && !find_minor_version | |
2235 | && *q == 'p' | |
2236 | && ISDIGIT (*(q - 1))) | |
2237 | find_minor_version = true; | |
2238 | else | |
2239 | break; | |
2240 | } | |
577bf39f NC |
2241 | if (len > 0) |
2242 | q++; | |
2243 | ||
d3ffd7f7 NC |
2244 | /* Check if the end of extension is 'p' or not. If yes, then |
2245 | the second letter from the end cannot be number. */ | |
577bf39f | 2246 | if (len > 1 && *(q - 1) == 'p' && ISDIGIT (*(q - 2))) |
d3ffd7f7 NC |
2247 | { |
2248 | *q = '\0'; | |
2249 | rps->error_handler | |
2250 | (_("invalid ISA extension ends with <number>p " | |
2251 | "in .option arch `%s'"), str); | |
2252 | free (subset); | |
2253 | return false; | |
2254 | } | |
577bf39f | 2255 | |
d3ffd7f7 NC |
2256 | end_of_version = |
2257 | riscv_parsing_subset_version (q, &major_version, &minor_version); | |
2258 | *q = '\0'; | |
2259 | if (end_of_version == NULL) | |
2260 | { | |
2261 | free (subset); | |
2262 | return false; | |
2263 | } | |
2264 | ||
2265 | if (strlen (subset) == 0 | |
2266 | || (strlen (subset) == 1 | |
2267 | && riscv_ext_order[(*subset - 'a')] == 0) | |
2268 | || (strlen (subset) > 1 | |
2269 | && rps->check_unknown_prefixed_ext | |
2270 | && !riscv_recognized_prefixed_ext (subset))) | |
edc77c59 NC |
2271 | { |
2272 | rps->error_handler | |
d3ffd7f7 NC |
2273 | (_("unknown ISA extension `%s' in .option arch `%s'"), |
2274 | subset, str); | |
2275 | free (subset); | |
edc77c59 NC |
2276 | return false; |
2277 | } | |
d3ffd7f7 | 2278 | |
de3a913d NC |
2279 | if (strcmp (subset, "i") == 0 |
2280 | || strcmp (subset, "e") == 0 | |
2281 | || strcmp (subset, "g") == 0) | |
d3ffd7f7 | 2282 | { |
de3a913d NC |
2283 | rps->error_handler |
2284 | (_("cannot + or - base extension `%s' in .option " | |
2285 | "arch `%s'"), subset, str); | |
2286 | free (subset); | |
2287 | return false; | |
d3ffd7f7 | 2288 | } |
de3a913d NC |
2289 | |
2290 | if (removed) | |
2291 | riscv_remove_subset (rps->subset_list, subset); | |
d3ffd7f7 NC |
2292 | else |
2293 | riscv_parse_add_subset (rps, subset, major_version, minor_version, true); | |
2294 | p += end_of_version - subset; | |
2295 | free (subset); | |
edc77c59 | 2296 | } |
d3ffd7f7 NC |
2297 | while (*p++ == ','); |
2298 | ||
edc77c59 NC |
2299 | riscv_parse_add_implicit_subsets (rps); |
2300 | return riscv_parse_check_conflicts (rps); | |
2301 | } | |
f786c359 NC |
2302 | |
2303 | /* Check if the FEATURE subset is supported or not in the subset list. | |
2304 | Return true if it is supported; Otherwise, return false. */ | |
2305 | ||
2306 | bool | |
2307 | riscv_subset_supports (riscv_parse_subset_t *rps, | |
2308 | const char *feature) | |
2309 | { | |
2310 | struct riscv_subset_t *subset; | |
2311 | return riscv_lookup_subset (rps->subset_list, feature, &subset); | |
2312 | } | |
2313 | ||
2314 | /* Each instuction is belonged to an instruction class INSN_CLASS_*. | |
2315 | Call riscv_subset_supports to make sure if the instuction is valid. */ | |
2316 | ||
2317 | bool | |
2318 | riscv_multi_subset_supports (riscv_parse_subset_t *rps, | |
2319 | enum riscv_insn_class insn_class) | |
2320 | { | |
2321 | switch (insn_class) | |
2322 | { | |
2323 | case INSN_CLASS_I: | |
2324 | return riscv_subset_supports (rps, "i"); | |
41d6ac5d TO |
2325 | case INSN_CLASS_ZICBOM: |
2326 | return riscv_subset_supports (rps, "zicbom"); | |
3b374308 TO |
2327 | case INSN_CLASS_ZICBOP: |
2328 | return riscv_subset_supports (rps, "zicbop"); | |
41d6ac5d TO |
2329 | case INSN_CLASS_ZICBOZ: |
2330 | return riscv_subset_supports (rps, "zicboz"); | |
f786c359 NC |
2331 | case INSN_CLASS_ZICSR: |
2332 | return riscv_subset_supports (rps, "zicsr"); | |
2333 | case INSN_CLASS_ZIFENCEI: | |
2334 | return riscv_subset_supports (rps, "zifencei"); | |
2335 | case INSN_CLASS_ZIHINTPAUSE: | |
2336 | return riscv_subset_supports (rps, "zihintpause"); | |
2337 | case INSN_CLASS_M: | |
2338 | return riscv_subset_supports (rps, "m"); | |
2339 | case INSN_CLASS_A: | |
2340 | return riscv_subset_supports (rps, "a"); | |
2341 | case INSN_CLASS_F: | |
2342 | return riscv_subset_supports (rps, "f"); | |
2343 | case INSN_CLASS_D: | |
2344 | return riscv_subset_supports (rps, "d"); | |
2345 | case INSN_CLASS_Q: | |
2346 | return riscv_subset_supports (rps, "q"); | |
2347 | case INSN_CLASS_C: | |
2348 | return riscv_subset_supports (rps, "c"); | |
2349 | case INSN_CLASS_F_AND_C: | |
2350 | return (riscv_subset_supports (rps, "f") | |
2351 | && riscv_subset_supports (rps, "c")); | |
2352 | case INSN_CLASS_D_AND_C: | |
2353 | return (riscv_subset_supports (rps, "d") | |
2354 | && riscv_subset_supports (rps, "c")); | |
de83e514 | 2355 | case INSN_CLASS_F_OR_ZFINX: |
2356 | return (riscv_subset_supports (rps, "f") | |
2357 | || riscv_subset_supports (rps, "zfinx")); | |
2358 | case INSN_CLASS_D_OR_ZDINX: | |
2359 | return (riscv_subset_supports (rps, "d") | |
2360 | || riscv_subset_supports (rps, "zdinx")); | |
2361 | case INSN_CLASS_Q_OR_ZQINX: | |
2362 | return (riscv_subset_supports (rps, "q") | |
2363 | || riscv_subset_supports (rps, "zqinx")); | |
035784e3 NC |
2364 | case INSN_CLASS_ZFH: |
2365 | return riscv_subset_supports (rps, "zfh"); | |
2366 | case INSN_CLASS_D_AND_ZFH: | |
2367 | return (riscv_subset_supports (rps, "d") | |
2368 | && riscv_subset_supports (rps, "zfh") ); | |
2369 | case INSN_CLASS_Q_AND_ZFH: | |
2370 | return (riscv_subset_supports (rps, "q") | |
2371 | && riscv_subset_supports (rps, "zfh")); | |
f786c359 NC |
2372 | case INSN_CLASS_ZBA: |
2373 | return riscv_subset_supports (rps, "zba"); | |
2374 | case INSN_CLASS_ZBB: | |
2375 | return riscv_subset_supports (rps, "zbb"); | |
2376 | case INSN_CLASS_ZBC: | |
2377 | return riscv_subset_supports (rps, "zbc"); | |
2378 | case INSN_CLASS_ZBS: | |
2379 | return riscv_subset_supports (rps, "zbs"); | |
3d1cafa0 | 2380 | case INSN_CLASS_ZBKB: |
2381 | return riscv_subset_supports (rps, "zbkb"); | |
2382 | case INSN_CLASS_ZBKC: | |
2383 | return riscv_subset_supports (rps, "zbkc"); | |
2384 | case INSN_CLASS_ZBKX: | |
2385 | return riscv_subset_supports (rps, "zbkx"); | |
2386 | case INSN_CLASS_ZBB_OR_ZBKB: | |
2387 | return (riscv_subset_supports (rps, "zbb") | |
2388 | || riscv_subset_supports (rps, "zbkb")); | |
2389 | case INSN_CLASS_ZBC_OR_ZBKC: | |
2390 | return (riscv_subset_supports (rps, "zbc") | |
2391 | || riscv_subset_supports (rps, "zbkc")); | |
2392 | case INSN_CLASS_ZKND: | |
2393 | return riscv_subset_supports (rps, "zknd"); | |
2394 | case INSN_CLASS_ZKNE: | |
2395 | return riscv_subset_supports (rps, "zkne"); | |
2396 | case INSN_CLASS_ZKNH: | |
2397 | return riscv_subset_supports (rps, "zknh"); | |
2398 | case INSN_CLASS_ZKND_OR_ZKNE: | |
2399 | return (riscv_subset_supports (rps, "zknd") | |
2400 | || riscv_subset_supports (rps, "zkne")); | |
2401 | case INSN_CLASS_ZKSED: | |
2402 | return riscv_subset_supports (rps, "zksed"); | |
2403 | case INSN_CLASS_ZKSH: | |
2404 | return riscv_subset_supports (rps, "zksh"); | |
65e4a99a NC |
2405 | case INSN_CLASS_V: |
2406 | return (riscv_subset_supports (rps, "v") | |
2407 | || riscv_subset_supports (rps, "zve64x") | |
2408 | || riscv_subset_supports (rps, "zve32x")); | |
2409 | case INSN_CLASS_ZVEF: | |
2410 | return (riscv_subset_supports (rps, "v") | |
2411 | || riscv_subset_supports (rps, "zve64d") | |
2412 | || riscv_subset_supports (rps, "zve64f") | |
2413 | || riscv_subset_supports (rps, "zve32f")); | |
23ff54c2 NC |
2414 | case INSN_CLASS_SVINVAL: |
2415 | return riscv_subset_supports (rps, "svinval"); | |
f786c359 NC |
2416 | default: |
2417 | rps->error_handler | |
2418 | (_("internal: unreachable INSN_CLASS_*")); | |
2419 | return false; | |
2420 | } | |
2421 | } | |
e4028336 PN |
2422 | |
2423 | /* Each instuction is belonged to an instruction class INSN_CLASS_*. | |
2424 | Call riscv_subset_supports_ext to determine the missing extension. */ | |
2425 | ||
2426 | const char * | |
2427 | riscv_multi_subset_supports_ext (riscv_parse_subset_t *rps, | |
2428 | enum riscv_insn_class insn_class) | |
2429 | { | |
2430 | switch (insn_class) | |
2431 | { | |
2432 | case INSN_CLASS_I: | |
2433 | return "i"; | |
2434 | case INSN_CLASS_ZICSR: | |
2435 | return "zicsr"; | |
2436 | case INSN_CLASS_ZIFENCEI: | |
2437 | return "zifencei"; | |
2438 | case INSN_CLASS_ZIHINTPAUSE: | |
2439 | return "zihintpause"; | |
2440 | case INSN_CLASS_M: | |
2441 | return "m"; | |
2442 | case INSN_CLASS_A: | |
2443 | return "a"; | |
2444 | case INSN_CLASS_F: | |
2445 | return "f"; | |
2446 | case INSN_CLASS_D: | |
2447 | return "d"; | |
2448 | case INSN_CLASS_Q: | |
2449 | return "q"; | |
2450 | case INSN_CLASS_C: | |
2451 | return "c"; | |
2452 | case INSN_CLASS_F_AND_C: | |
2453 | if (!riscv_subset_supports (rps, "f") | |
2454 | && !riscv_subset_supports (rps, "c")) | |
2455 | return "f' and `c"; | |
2456 | else if (!riscv_subset_supports (rps, "f")) | |
2457 | return "f"; | |
2458 | else | |
2459 | return "c"; | |
2460 | case INSN_CLASS_D_AND_C: | |
2461 | if (!riscv_subset_supports (rps, "d") | |
2462 | && !riscv_subset_supports (rps, "c")) | |
2463 | return "d' and `c"; | |
2464 | else if (!riscv_subset_supports (rps, "d")) | |
2465 | return "d"; | |
2466 | else | |
2467 | return "c"; | |
2468 | case INSN_CLASS_F_OR_ZFINX: | |
2469 | return "f' or `zfinx"; | |
2470 | case INSN_CLASS_D_OR_ZDINX: | |
2471 | return "d' or `zdinx"; | |
2472 | case INSN_CLASS_Q_OR_ZQINX: | |
2473 | return "q' or `zqinx"; | |
2474 | case INSN_CLASS_ZBA: | |
2475 | return "zba"; | |
2476 | case INSN_CLASS_ZBB: | |
2477 | return "zbb"; | |
2478 | case INSN_CLASS_ZBC: | |
2479 | return "zbc"; | |
2480 | case INSN_CLASS_ZBS: | |
2481 | return "zbs"; | |
2482 | case INSN_CLASS_ZBKB: | |
2483 | return "zbkb"; | |
2484 | case INSN_CLASS_ZBKC: | |
2485 | return "zbkc"; | |
2486 | case INSN_CLASS_ZBKX: | |
2487 | return "zbkx"; | |
2488 | case INSN_CLASS_ZBB_OR_ZBKB: | |
2489 | return "zbb' or `zbkb"; | |
2490 | case INSN_CLASS_ZBC_OR_ZBKC: | |
2491 | return "zbc' or `zbkc"; | |
2492 | case INSN_CLASS_ZKND: | |
2493 | return "zknd"; | |
2494 | case INSN_CLASS_ZKNE: | |
2495 | return "zkne"; | |
2496 | case INSN_CLASS_ZKNH: | |
2497 | return "zknh"; | |
2498 | case INSN_CLASS_ZKND_OR_ZKNE: | |
2499 | return "zknd' or `zkne"; | |
2500 | case INSN_CLASS_ZKSED: | |
2501 | return "zksed"; | |
2502 | case INSN_CLASS_ZKSH: | |
2503 | return "zksh"; | |
2504 | case INSN_CLASS_V: | |
2505 | return "v' or `zve64x' or `zve32x"; | |
2506 | case INSN_CLASS_ZVEF: | |
2507 | return "v' or `zve64d' or `zve64f' or `zve32f"; | |
2508 | case INSN_CLASS_SVINVAL: | |
2509 | return "svinval"; | |
2510 | default: | |
2511 | rps->error_handler | |
2512 | (_("internal: unreachable INSN_CLASS_*")); | |
2513 | return NULL; | |
2514 | } | |
2515 | } |