]>
Commit | Line | Data |
---|---|---|
e23eba97 | 1 | /* RISC-V disassembler |
250d07de | 2 | Copyright (C) 2011-2021 Free Software Foundation, Inc. |
e23eba97 NC |
3 | |
4 | Contributed by Andrew Waterman (andrew@sifive.com). | |
5 | Based on MIPS target. | |
6 | ||
7 | This file is part of the GNU opcodes library. | |
8 | ||
9 | This library 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, or (at your option) | |
12 | any later version. | |
13 | ||
14 | It is distributed in the hope that it will be useful, but WITHOUT | |
15 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
16 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
17 | 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" | |
88c1242d | 24 | #include "disassemble.h" |
e23eba97 NC |
25 | #include "libiberty.h" |
26 | #include "opcode/riscv.h" | |
27 | #include "opintl.h" | |
28 | #include "elf-bfd.h" | |
29 | #include "elf/riscv.h" | |
f786c359 | 30 | #include "elfxx-riscv.h" |
e23eba97 | 31 | |
3dfb1b6d | 32 | #include <stdint.h> |
e23eba97 NC |
33 | #include <ctype.h> |
34 | ||
f786c359 | 35 | static enum riscv_spec_class default_isa_spec = ISA_SPEC_CLASS_DRAFT - 1; |
3d73d29e | 36 | static enum riscv_spec_class default_priv_spec = PRIV_SPEC_CLASS_NONE; |
8f595e9b | 37 | |
f786c359 NC |
38 | unsigned xlen = 0; |
39 | ||
40 | static riscv_subset_list_t riscv_subsets; | |
41 | static riscv_parse_subset_t riscv_rps_dis = | |
42 | { | |
43 | &riscv_subsets, /* subset_list. */ | |
44 | opcodes_error_handler,/* error_handler. */ | |
45 | &xlen, /* xlen. */ | |
46 | &default_isa_spec, /* isa_spec. */ | |
47 | false, /* check_unknown_prefixed_ext. */ | |
48 | }; | |
49 | ||
e23eba97 NC |
50 | struct riscv_private_data |
51 | { | |
52 | bfd_vma gp; | |
53 | bfd_vma print_addr; | |
54 | bfd_vma hi_addr[OP_MASK_RD + 1]; | |
55 | }; | |
56 | ||
9b9b1092 NC |
57 | /* Used for mapping symbols. */ |
58 | static int last_map_symbol = -1; | |
59 | static bfd_vma last_stop_offset = 0; | |
60 | enum riscv_seg_mstate last_map_state; | |
61 | ||
e23eba97 NC |
62 | static const char * const *riscv_gpr_names; |
63 | static const char * const *riscv_fpr_names; | |
64 | ||
dcd709e0 NC |
65 | /* If set, disassemble as most general instruction. */ |
66 | static int no_aliases; | |
e23eba97 NC |
67 | |
68 | static void | |
69 | set_default_riscv_dis_options (void) | |
70 | { | |
71 | riscv_gpr_names = riscv_gpr_names_abi; | |
72 | riscv_fpr_names = riscv_fpr_names_abi; | |
73 | no_aliases = 0; | |
74 | } | |
75 | ||
78933a4a | 76 | static bool |
8f595e9b | 77 | parse_riscv_dis_option_without_args (const char *option) |
e23eba97 NC |
78 | { |
79 | if (strcmp (option, "no-aliases") == 0) | |
80 | no_aliases = 1; | |
81 | else if (strcmp (option, "numeric") == 0) | |
82 | { | |
83 | riscv_gpr_names = riscv_gpr_names_numeric; | |
84 | riscv_fpr_names = riscv_fpr_names_numeric; | |
85 | } | |
8f595e9b | 86 | else |
78933a4a AM |
87 | return false; |
88 | return true; | |
8f595e9b NC |
89 | } |
90 | ||
91 | static void | |
92 | parse_riscv_dis_option (const char *option) | |
93 | { | |
94 | char *equal, *value; | |
95 | ||
96 | if (parse_riscv_dis_option_without_args (option)) | |
97 | return; | |
98 | ||
99 | equal = strchr (option, '='); | |
100 | if (equal == NULL) | |
101 | { | |
102 | /* The option without '=' should be defined above. */ | |
103 | opcodes_error_handler (_("unrecognized disassembler option: %s"), option); | |
104 | return; | |
105 | } | |
106 | if (equal == option | |
107 | || *(equal + 1) == '\0') | |
108 | { | |
109 | /* Invalid options with '=', no option name before '=', | |
110 | and no value after '='. */ | |
111 | opcodes_error_handler (_("unrecognized disassembler option with '=': %s"), | |
112 | option); | |
113 | return; | |
114 | } | |
115 | ||
116 | *equal = '\0'; | |
117 | value = equal + 1; | |
118 | if (strcmp (option, "priv-spec") == 0) | |
119 | { | |
3d73d29e NC |
120 | enum riscv_spec_class priv_spec = PRIV_SPEC_CLASS_NONE; |
121 | const char *name = NULL; | |
122 | ||
123 | RISCV_GET_PRIV_SPEC_CLASS (value, priv_spec); | |
124 | if (priv_spec == PRIV_SPEC_CLASS_NONE) | |
b800637e | 125 | opcodes_error_handler (_("unknown privileged spec set by %s=%s"), |
8152e040 NC |
126 | option, value); |
127 | else if (default_priv_spec == PRIV_SPEC_CLASS_NONE) | |
128 | default_priv_spec = priv_spec; | |
129 | else if (default_priv_spec != priv_spec) | |
3d73d29e NC |
130 | { |
131 | RISCV_GET_PRIV_SPEC_NAME (name, default_priv_spec); | |
132 | opcodes_error_handler (_("mis-matched privilege spec set by %s=%s, " | |
133 | "the elf privilege attribute is %s"), | |
134 | option, value, name); | |
135 | } | |
8f595e9b | 136 | } |
e23eba97 NC |
137 | else |
138 | { | |
a6743a54 AM |
139 | /* xgettext:c-format */ |
140 | opcodes_error_handler (_("unrecognized disassembler option: %s"), option); | |
e23eba97 NC |
141 | } |
142 | } | |
143 | ||
144 | static void | |
145 | parse_riscv_dis_options (const char *opts_in) | |
146 | { | |
147 | char *opts = xstrdup (opts_in), *opt = opts, *opt_end = opts; | |
148 | ||
149 | set_default_riscv_dis_options (); | |
150 | ||
151 | for ( ; opt_end != NULL; opt = opt_end + 1) | |
152 | { | |
153 | if ((opt_end = strchr (opt, ',')) != NULL) | |
154 | *opt_end = 0; | |
155 | parse_riscv_dis_option (opt); | |
156 | } | |
157 | ||
158 | free (opts); | |
159 | } | |
160 | ||
161 | /* Print one argument from an array. */ | |
162 | ||
163 | static void | |
164 | arg_print (struct disassemble_info *info, unsigned long val, | |
165 | const char* const* array, size_t size) | |
166 | { | |
167 | const char *s = val >= size || array[val] == NULL ? "unknown" : array[val]; | |
168 | (*info->fprintf_func) (info->stream, "%s", s); | |
169 | } | |
170 | ||
171 | static void | |
c7dee848 JW |
172 | maybe_print_address (struct riscv_private_data *pd, int base_reg, int offset, |
173 | int wide) | |
e23eba97 NC |
174 | { |
175 | if (pd->hi_addr[base_reg] != (bfd_vma)-1) | |
176 | { | |
35fd2b2b | 177 | pd->print_addr = (base_reg != 0 ? pd->hi_addr[base_reg] : 0) + offset; |
e23eba97 NC |
178 | pd->hi_addr[base_reg] = -1; |
179 | } | |
180 | else if (base_reg == X_GP && pd->gp != (bfd_vma)-1) | |
181 | pd->print_addr = pd->gp + offset; | |
182 | else if (base_reg == X_TP || base_reg == 0) | |
183 | pd->print_addr = offset; | |
c7dee848 JW |
184 | |
185 | /* Sign-extend a 32-bit value to a 64-bit value. */ | |
186 | if (wide) | |
187 | pd->print_addr = (bfd_vma)(int32_t) pd->print_addr; | |
e23eba97 NC |
188 | } |
189 | ||
190 | /* Print insn arguments for 32/64-bit code. */ | |
191 | ||
192 | static void | |
437e2ff1 | 193 | print_insn_args (const char *oparg, insn_t l, bfd_vma pc, disassemble_info *info) |
e23eba97 NC |
194 | { |
195 | struct riscv_private_data *pd = info->private_data; | |
196 | int rs1 = (l >> OP_SH_RS1) & OP_MASK_RS1; | |
197 | int rd = (l >> OP_SH_RD) & OP_MASK_RD; | |
198 | fprintf_ftype print = info->fprintf_func; | |
437e2ff1 | 199 | const char *opargStart; |
e23eba97 | 200 | |
437e2ff1 | 201 | if (*oparg != '\0') |
e23eba97 NC |
202 | print (info->stream, "\t"); |
203 | ||
437e2ff1 | 204 | for (; *oparg != '\0'; oparg++) |
e23eba97 | 205 | { |
437e2ff1 NC |
206 | opargStart = oparg; |
207 | switch (*oparg) | |
e23eba97 NC |
208 | { |
209 | case 'C': /* RVC */ | |
437e2ff1 | 210 | switch (*++oparg) |
e23eba97 | 211 | { |
dcd709e0 NC |
212 | case 's': /* RS1 x8-x15. */ |
213 | case 'w': /* RS1 x8-x15. */ | |
e23eba97 NC |
214 | print (info->stream, "%s", |
215 | riscv_gpr_names[EXTRACT_OPERAND (CRS1S, l) + 8]); | |
216 | break; | |
dcd709e0 NC |
217 | case 't': /* RS2 x8-x15. */ |
218 | case 'x': /* RS2 x8-x15. */ | |
e23eba97 NC |
219 | print (info->stream, "%s", |
220 | riscv_gpr_names[EXTRACT_OPERAND (CRS2S, l) + 8]); | |
221 | break; | |
dcd709e0 | 222 | case 'U': /* RS1, constrained to equal RD. */ |
e23eba97 NC |
223 | print (info->stream, "%s", riscv_gpr_names[rd]); |
224 | break; | |
dcd709e0 | 225 | case 'c': /* RS1, constrained to equal sp. */ |
e23eba97 NC |
226 | print (info->stream, "%s", riscv_gpr_names[X_SP]); |
227 | break; | |
228 | case 'V': /* RS2 */ | |
229 | print (info->stream, "%s", | |
230 | riscv_gpr_names[EXTRACT_OPERAND (CRS2, l)]); | |
231 | break; | |
f91d48de | 232 | case 'o': |
e23eba97 | 233 | case 'j': |
c7dee848 JW |
234 | if (((l & MASK_C_ADDI) == MATCH_C_ADDI) && rd != 0) |
235 | maybe_print_address (pd, rd, EXTRACT_CITYPE_IMM (l), 0); | |
236 | if (info->mach == bfd_mach_riscv64 | |
237 | && ((l & MASK_C_ADDIW) == MATCH_C_ADDIW) && rd != 0) | |
238 | maybe_print_address (pd, rd, EXTRACT_CITYPE_IMM (l), 1); | |
5a9f5403 | 239 | print (info->stream, "%d", (int)EXTRACT_CITYPE_IMM (l)); |
e23eba97 NC |
240 | break; |
241 | case 'k': | |
5a9f5403 | 242 | print (info->stream, "%d", (int)EXTRACT_CLTYPE_LW_IMM (l)); |
e23eba97 NC |
243 | break; |
244 | case 'l': | |
5a9f5403 | 245 | print (info->stream, "%d", (int)EXTRACT_CLTYPE_LD_IMM (l)); |
e23eba97 NC |
246 | break; |
247 | case 'm': | |
5a9f5403 | 248 | print (info->stream, "%d", (int)EXTRACT_CITYPE_LWSP_IMM (l)); |
e23eba97 NC |
249 | break; |
250 | case 'n': | |
5a9f5403 | 251 | print (info->stream, "%d", (int)EXTRACT_CITYPE_LDSP_IMM (l)); |
e23eba97 NC |
252 | break; |
253 | case 'K': | |
5a9f5403 | 254 | print (info->stream, "%d", (int)EXTRACT_CIWTYPE_ADDI4SPN_IMM (l)); |
e23eba97 NC |
255 | break; |
256 | case 'L': | |
5a9f5403 | 257 | print (info->stream, "%d", (int)EXTRACT_CITYPE_ADDI16SP_IMM (l)); |
e23eba97 NC |
258 | break; |
259 | case 'M': | |
5a9f5403 | 260 | print (info->stream, "%d", (int)EXTRACT_CSSTYPE_SWSP_IMM (l)); |
e23eba97 NC |
261 | break; |
262 | case 'N': | |
5a9f5403 | 263 | print (info->stream, "%d", (int)EXTRACT_CSSTYPE_SDSP_IMM (l)); |
e23eba97 NC |
264 | break; |
265 | case 'p': | |
5a9f5403 | 266 | info->target = EXTRACT_CBTYPE_IMM (l) + pc; |
e23eba97 NC |
267 | (*info->print_address_func) (info->target, info); |
268 | break; | |
269 | case 'a': | |
5a9f5403 | 270 | info->target = EXTRACT_CJTYPE_IMM (l) + pc; |
e23eba97 NC |
271 | (*info->print_address_func) (info->target, info); |
272 | break; | |
273 | case 'u': | |
274 | print (info->stream, "0x%x", | |
5a9f5403 | 275 | (int)(EXTRACT_CITYPE_IMM (l) & (RISCV_BIGIMM_REACH-1))); |
e23eba97 NC |
276 | break; |
277 | case '>': | |
5a9f5403 | 278 | print (info->stream, "0x%x", (int)EXTRACT_CITYPE_IMM (l) & 0x3f); |
e23eba97 NC |
279 | break; |
280 | case '<': | |
5a9f5403 | 281 | print (info->stream, "0x%x", (int)EXTRACT_CITYPE_IMM (l) & 0x1f); |
e23eba97 | 282 | break; |
dcd709e0 | 283 | case 'T': /* Floating-point RS2. */ |
e23eba97 NC |
284 | print (info->stream, "%s", |
285 | riscv_fpr_names[EXTRACT_OPERAND (CRS2, l)]); | |
286 | break; | |
dcd709e0 | 287 | case 'D': /* Floating-point RS2 x8-x15. */ |
e23eba97 NC |
288 | print (info->stream, "%s", |
289 | riscv_fpr_names[EXTRACT_OPERAND (CRS2S, l) + 8]); | |
290 | break; | |
291 | } | |
292 | break; | |
293 | ||
65e4a99a NC |
294 | case 'V': /* RVV */ |
295 | switch (*++oparg) | |
296 | { | |
297 | case 'd': | |
298 | case 'f': | |
299 | print (info->stream, "%s", | |
300 | riscv_vecr_names_numeric[EXTRACT_OPERAND (VD, l)]); | |
301 | break; | |
302 | case 'e': | |
303 | if (!EXTRACT_OPERAND (VWD, l)) | |
304 | print (info->stream, "%s", riscv_gpr_names[0]); | |
305 | else | |
306 | print (info->stream, "%s", | |
307 | riscv_vecr_names_numeric[EXTRACT_OPERAND (VD, l)]); | |
308 | break; | |
309 | case 's': | |
310 | print (info->stream, "%s", | |
311 | riscv_vecr_names_numeric[EXTRACT_OPERAND (VS1, l)]); | |
312 | break; | |
313 | case 't': | |
314 | case 'u': /* VS1 == VS2 already verified at this point. */ | |
315 | case 'v': /* VD == VS1 == VS2 already verified at this point. */ | |
316 | print (info->stream, "%s", | |
317 | riscv_vecr_names_numeric[EXTRACT_OPERAND (VS2, l)]); | |
318 | break; | |
319 | case '0': | |
320 | print (info->stream, "%s", riscv_vecr_names_numeric[0]); | |
321 | break; | |
322 | case 'b': | |
323 | case 'c': | |
324 | { | |
325 | int imm = (*oparg == 'b') ? EXTRACT_RVV_VB_IMM (l) | |
326 | : EXTRACT_RVV_VC_IMM (l); | |
327 | unsigned int imm_vlmul = EXTRACT_OPERAND (VLMUL, imm); | |
328 | unsigned int imm_vsew = EXTRACT_OPERAND (VSEW, imm); | |
329 | unsigned int imm_vta = EXTRACT_OPERAND (VTA, imm); | |
330 | unsigned int imm_vma = EXTRACT_OPERAND (VMA, imm); | |
331 | unsigned int imm_vtype_res = EXTRACT_OPERAND (VTYPE_RES, imm); | |
332 | ||
333 | if (imm_vsew < ARRAY_SIZE (riscv_vsew) | |
334 | && imm_vlmul < ARRAY_SIZE (riscv_vlmul) | |
335 | && imm_vta < ARRAY_SIZE (riscv_vta) | |
336 | && imm_vma < ARRAY_SIZE (riscv_vma) | |
ee083a9e NC |
337 | && !imm_vtype_res |
338 | && riscv_vsew[imm_vsew] != NULL | |
339 | && riscv_vlmul[imm_vlmul] != NULL) | |
65e4a99a NC |
340 | print (info->stream, "%s,%s,%s,%s", riscv_vsew[imm_vsew], |
341 | riscv_vlmul[imm_vlmul], riscv_vta[imm_vta], | |
342 | riscv_vma[imm_vma]); | |
343 | else | |
344 | print (info->stream, "%d", imm); | |
345 | } | |
346 | break; | |
347 | case 'i': | |
348 | print (info->stream, "%d", (int)EXTRACT_RVV_VI_IMM (l)); | |
349 | break; | |
350 | case 'j': | |
351 | print (info->stream, "%d", (int)EXTRACT_RVV_VI_UIMM (l)); | |
352 | break; | |
353 | case 'k': | |
354 | print (info->stream, "%d", (int)EXTRACT_RVV_OFFSET (l)); | |
355 | break; | |
356 | case 'm': | |
357 | if (! EXTRACT_OPERAND (VMASK, l)) | |
358 | print (info->stream, ",%s", riscv_vecm_names_numeric[0]); | |
359 | break; | |
360 | } | |
361 | break; | |
362 | ||
e23eba97 NC |
363 | case ',': |
364 | case '(': | |
365 | case ')': | |
366 | case '[': | |
367 | case ']': | |
437e2ff1 | 368 | print (info->stream, "%c", *oparg); |
e23eba97 NC |
369 | break; |
370 | ||
371 | case '0': | |
dcd709e0 | 372 | /* Only print constant 0 if it is the last argument. */ |
437e2ff1 | 373 | if (!oparg[1]) |
e23eba97 NC |
374 | print (info->stream, "0"); |
375 | break; | |
376 | ||
377 | case 'b': | |
378 | case 's': | |
35eeb78f | 379 | if ((l & MASK_JALR) == MATCH_JALR) |
c7dee848 | 380 | maybe_print_address (pd, rs1, 0, 0); |
e23eba97 NC |
381 | print (info->stream, "%s", riscv_gpr_names[rs1]); |
382 | break; | |
383 | ||
384 | case 't': | |
385 | print (info->stream, "%s", | |
386 | riscv_gpr_names[EXTRACT_OPERAND (RS2, l)]); | |
387 | break; | |
388 | ||
389 | case 'u': | |
390 | print (info->stream, "0x%x", | |
391 | (unsigned)EXTRACT_UTYPE_IMM (l) >> RISCV_IMM_BITS); | |
392 | break; | |
393 | ||
394 | case 'm': | |
395 | arg_print (info, EXTRACT_OPERAND (RM, l), | |
396 | riscv_rm, ARRAY_SIZE (riscv_rm)); | |
397 | break; | |
398 | ||
399 | case 'P': | |
400 | arg_print (info, EXTRACT_OPERAND (PRED, l), | |
401 | riscv_pred_succ, ARRAY_SIZE (riscv_pred_succ)); | |
402 | break; | |
403 | ||
404 | case 'Q': | |
405 | arg_print (info, EXTRACT_OPERAND (SUCC, l), | |
406 | riscv_pred_succ, ARRAY_SIZE (riscv_pred_succ)); | |
407 | break; | |
408 | ||
409 | case 'o': | |
c7dee848 | 410 | maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 0); |
b52d3cfc | 411 | /* Fall through. */ |
e23eba97 NC |
412 | case 'j': |
413 | if (((l & MASK_ADDI) == MATCH_ADDI && rs1 != 0) | |
414 | || (l & MASK_JALR) == MATCH_JALR) | |
c7dee848 JW |
415 | maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 0); |
416 | if (info->mach == bfd_mach_riscv64 | |
417 | && ((l & MASK_ADDIW) == MATCH_ADDIW) && rs1 != 0) | |
418 | maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 1); | |
e23eba97 NC |
419 | print (info->stream, "%d", (int)EXTRACT_ITYPE_IMM (l)); |
420 | break; | |
421 | ||
422 | case 'q': | |
c7dee848 | 423 | maybe_print_address (pd, rs1, EXTRACT_STYPE_IMM (l), 0); |
e23eba97 NC |
424 | print (info->stream, "%d", (int)EXTRACT_STYPE_IMM (l)); |
425 | break; | |
426 | ||
427 | case 'a': | |
5a9f5403 | 428 | info->target = EXTRACT_JTYPE_IMM (l) + pc; |
e23eba97 NC |
429 | (*info->print_address_func) (info->target, info); |
430 | break; | |
431 | ||
432 | case 'p': | |
5a9f5403 | 433 | info->target = EXTRACT_BTYPE_IMM (l) + pc; |
e23eba97 NC |
434 | (*info->print_address_func) (info->target, info); |
435 | break; | |
436 | ||
437 | case 'd': | |
438 | if ((l & MASK_AUIPC) == MATCH_AUIPC) | |
439 | pd->hi_addr[rd] = pc + EXTRACT_UTYPE_IMM (l); | |
440 | else if ((l & MASK_LUI) == MATCH_LUI) | |
441 | pd->hi_addr[rd] = EXTRACT_UTYPE_IMM (l); | |
442 | else if ((l & MASK_C_LUI) == MATCH_C_LUI) | |
5a9f5403 | 443 | pd->hi_addr[rd] = EXTRACT_CITYPE_LUI_IMM (l); |
e23eba97 NC |
444 | print (info->stream, "%s", riscv_gpr_names[rd]); |
445 | break; | |
446 | ||
3d1cafa0 | 447 | case 'y': |
448 | print (info->stream, "0x%x", (int)EXTRACT_OPERAND (BS, l)); | |
449 | break; | |
450 | ||
e23eba97 NC |
451 | case 'z': |
452 | print (info->stream, "%s", riscv_gpr_names[0]); | |
453 | break; | |
454 | ||
455 | case '>': | |
456 | print (info->stream, "0x%x", (int)EXTRACT_OPERAND (SHAMT, l)); | |
457 | break; | |
458 | ||
459 | case '<': | |
460 | print (info->stream, "0x%x", (int)EXTRACT_OPERAND (SHAMTW, l)); | |
461 | break; | |
462 | ||
463 | case 'S': | |
464 | case 'U': | |
465 | print (info->stream, "%s", riscv_fpr_names[rs1]); | |
466 | break; | |
467 | ||
468 | case 'T': | |
469 | print (info->stream, "%s", riscv_fpr_names[EXTRACT_OPERAND (RS2, l)]); | |
470 | break; | |
471 | ||
472 | case 'D': | |
473 | print (info->stream, "%s", riscv_fpr_names[rd]); | |
474 | break; | |
475 | ||
476 | case 'R': | |
477 | print (info->stream, "%s", riscv_fpr_names[EXTRACT_OPERAND (RS3, l)]); | |
478 | break; | |
479 | ||
480 | case 'E': | |
481 | { | |
dcd709e0 | 482 | static const char *riscv_csr_hash[4096]; /* Total 2^12 CSRs. */ |
78933a4a | 483 | static bool init_csr = false; |
e23eba97 | 484 | unsigned int csr = EXTRACT_OPERAND (CSR, l); |
8f595e9b NC |
485 | |
486 | if (!init_csr) | |
e23eba97 | 487 | { |
8f595e9b NC |
488 | unsigned int i; |
489 | for (i = 0; i < 4096; i++) | |
490 | riscv_csr_hash[i] = NULL; | |
491 | ||
dcd709e0 | 492 | /* Set to the newest privileged version. */ |
8f595e9b NC |
493 | if (default_priv_spec == PRIV_SPEC_CLASS_NONE) |
494 | default_priv_spec = PRIV_SPEC_CLASS_DRAFT - 1; | |
495 | ||
08ccfccf NC |
496 | #define DECLARE_CSR(name, num, class, define_version, abort_version) \ |
497 | if (riscv_csr_hash[num] == NULL \ | |
498 | && ((define_version == PRIV_SPEC_CLASS_NONE \ | |
499 | && abort_version == PRIV_SPEC_CLASS_NONE) \ | |
500 | || (default_priv_spec >= define_version \ | |
501 | && default_priv_spec < abort_version))) \ | |
8f595e9b NC |
502 | riscv_csr_hash[num] = #name; |
503 | #define DECLARE_CSR_ALIAS(name, num, class, define_version, abort_version) \ | |
504 | DECLARE_CSR (name, num, class, define_version, abort_version) | |
e23eba97 NC |
505 | #include "opcode/riscv-opc.h" |
506 | #undef DECLARE_CSR | |
507 | } | |
8f595e9b NC |
508 | |
509 | if (riscv_csr_hash[csr] != NULL) | |
510 | print (info->stream, "%s", riscv_csr_hash[csr]); | |
e23eba97 NC |
511 | else |
512 | print (info->stream, "0x%x", csr); | |
513 | break; | |
514 | } | |
515 | ||
3d1cafa0 | 516 | case 'Y': |
517 | print (info->stream, "0x%x", (int)EXTRACT_OPERAND (RNUM, l)); | |
518 | break; | |
519 | ||
e23eba97 NC |
520 | case 'Z': |
521 | print (info->stream, "%d", rs1); | |
522 | break; | |
523 | ||
524 | default: | |
525 | /* xgettext:c-format */ | |
526 | print (info->stream, _("# internal error, undefined modifier (%c)"), | |
437e2ff1 | 527 | *opargStart); |
e23eba97 NC |
528 | return; |
529 | } | |
530 | } | |
531 | } | |
532 | ||
533 | /* Print the RISC-V instruction at address MEMADDR in debugged memory, | |
534 | on using INFO. Returns length of the instruction, in bytes. | |
535 | BIGENDIAN must be 1 if this is big-endian code, 0 if | |
536 | this is little-endian code. */ | |
537 | ||
538 | static int | |
539 | riscv_disassemble_insn (bfd_vma memaddr, insn_t word, disassemble_info *info) | |
540 | { | |
541 | const struct riscv_opcode *op; | |
78933a4a | 542 | static bool init = 0; |
e23eba97 NC |
543 | static const struct riscv_opcode *riscv_hash[OP_MASK_OP + 1]; |
544 | struct riscv_private_data *pd; | |
545 | int insnlen; | |
546 | ||
547 | #define OP_HASH_IDX(i) ((i) & (riscv_insn_length (i) == 2 ? 0x3 : OP_MASK_OP)) | |
548 | ||
549 | /* Build a hash table to shorten the search time. */ | |
550 | if (! init) | |
551 | { | |
552 | for (op = riscv_opcodes; op->name; op++) | |
553 | if (!riscv_hash[OP_HASH_IDX (op->match)]) | |
554 | riscv_hash[OP_HASH_IDX (op->match)] = op; | |
555 | ||
556 | init = 1; | |
557 | } | |
558 | ||
559 | if (info->private_data == NULL) | |
560 | { | |
561 | int i; | |
562 | ||
563 | pd = info->private_data = xcalloc (1, sizeof (struct riscv_private_data)); | |
564 | pd->gp = -1; | |
565 | pd->print_addr = -1; | |
566 | for (i = 0; i < (int)ARRAY_SIZE (pd->hi_addr); i++) | |
567 | pd->hi_addr[i] = -1; | |
568 | ||
569 | for (i = 0; i < info->symtab_size; i++) | |
b5292032 | 570 | if (strcmp (bfd_asymbol_name (info->symtab[i]), RISCV_GP_SYMBOL) == 0) |
e23eba97 NC |
571 | pd->gp = bfd_asymbol_value (info->symtab[i]); |
572 | } | |
573 | else | |
574 | pd = info->private_data; | |
575 | ||
576 | insnlen = riscv_insn_length (word); | |
577 | ||
d7560e2d JW |
578 | /* RISC-V instructions are always little-endian. */ |
579 | info->endian_code = BFD_ENDIAN_LITTLE; | |
580 | ||
e23eba97 NC |
581 | info->bytes_per_chunk = insnlen % 4 == 0 ? 4 : 2; |
582 | info->bytes_per_line = 8; | |
d7560e2d JW |
583 | /* We don't support constant pools, so this must be code. */ |
584 | info->display_endian = info->endian_code; | |
e23eba97 NC |
585 | info->insn_info_valid = 1; |
586 | info->branch_delay_insns = 0; | |
587 | info->data_size = 0; | |
588 | info->insn_type = dis_nonbranch; | |
589 | info->target = 0; | |
590 | info->target2 = 0; | |
591 | ||
592 | op = riscv_hash[OP_HASH_IDX (word)]; | |
593 | if (op != NULL) | |
594 | { | |
2922d21d AW |
595 | /* If XLEN is not known, get its value from the ELF class. */ |
596 | if (info->mach == bfd_mach_riscv64) | |
597 | xlen = 64; | |
598 | else if (info->mach == bfd_mach_riscv32) | |
599 | xlen = 32; | |
600 | else if (info->section != NULL) | |
e23eba97 NC |
601 | { |
602 | Elf_Internal_Ehdr *ehdr = elf_elfheader (info->section->owner); | |
603 | xlen = ehdr->e_ident[EI_CLASS] == ELFCLASS64 ? 64 : 32; | |
604 | } | |
605 | ||
de83e514 | 606 | /* If arch has ZFINX flags, use gpr for disassemble. */ |
607 | if(riscv_subset_supports (&riscv_rps_dis, "zfinx")) | |
608 | riscv_fpr_names = riscv_gpr_names_abi; | |
609 | ||
e23eba97 NC |
610 | for (; op->name; op++) |
611 | { | |
612 | /* Does the opcode match? */ | |
613 | if (! (op->match_func) (op, word)) | |
614 | continue; | |
615 | /* Is this a pseudo-instruction and may we print it as such? */ | |
616 | if (no_aliases && (op->pinfo & INSN_ALIAS)) | |
617 | continue; | |
618 | /* Is this instruction restricted to a certain value of XLEN? */ | |
43135d3b | 619 | if ((op->xlen_requirement != 0) && (op->xlen_requirement != xlen)) |
e23eba97 NC |
620 | continue; |
621 | ||
f786c359 NC |
622 | if (!riscv_multi_subset_supports (&riscv_rps_dis, op->insn_class)) |
623 | continue; | |
624 | ||
e23eba97 NC |
625 | /* It's a match. */ |
626 | (*info->fprintf_func) (info->stream, "%s", op->name); | |
627 | print_insn_args (op->args, word, memaddr, info); | |
628 | ||
629 | /* Try to disassemble multi-instruction addressing sequences. */ | |
630 | if (pd->print_addr != (bfd_vma)-1) | |
631 | { | |
632 | info->target = pd->print_addr; | |
633 | (*info->fprintf_func) (info->stream, " # "); | |
634 | (*info->print_address_func) (info->target, info); | |
635 | pd->print_addr = -1; | |
636 | } | |
637 | ||
eb41b248 JW |
638 | /* Finish filling out insn_info fields. */ |
639 | switch (op->pinfo & INSN_TYPE) | |
640 | { | |
641 | case INSN_BRANCH: | |
642 | info->insn_type = dis_branch; | |
643 | break; | |
644 | case INSN_CONDBRANCH: | |
645 | info->insn_type = dis_condbranch; | |
646 | break; | |
647 | case INSN_JSR: | |
648 | info->insn_type = dis_jsr; | |
649 | break; | |
650 | case INSN_DREF: | |
651 | info->insn_type = dis_dref; | |
652 | break; | |
653 | default: | |
654 | break; | |
655 | } | |
656 | ||
657 | if (op->pinfo & INSN_DATA_SIZE) | |
658 | { | |
659 | int size = ((op->pinfo & INSN_DATA_SIZE) | |
660 | >> INSN_DATA_SIZE_SHIFT); | |
661 | info->data_size = 1 << (size - 1); | |
662 | } | |
663 | ||
e23eba97 NC |
664 | return insnlen; |
665 | } | |
666 | } | |
667 | ||
668 | /* We did not find a match, so just print the instruction bits. */ | |
669 | info->insn_type = dis_noninsn; | |
6a7f5766 AB |
670 | switch (insnlen) |
671 | { | |
672 | case 2: | |
673 | case 4: | |
674 | case 8: | |
675 | (*info->fprintf_func) (info->stream, ".%dbyte\t0x%llx", | |
676 | insnlen, (unsigned long long) word); | |
677 | break; | |
678 | default: | |
679 | { | |
680 | int i; | |
681 | (*info->fprintf_func) (info->stream, ".byte\t"); | |
682 | for (i = 0; i < insnlen; ++i) | |
683 | { | |
684 | if (i > 0) | |
685 | (*info->fprintf_func) (info->stream, ", "); | |
686 | (*info->fprintf_func) (info->stream, "0x%02x", | |
687 | (unsigned int) (word & 0xff)); | |
688 | word >>= 8; | |
689 | } | |
690 | } | |
691 | break; | |
692 | } | |
e23eba97 NC |
693 | return insnlen; |
694 | } | |
695 | ||
9b9b1092 NC |
696 | /* Return true if we find the suitable mapping symbol, |
697 | and also update the STATE. Otherwise, return false. */ | |
698 | ||
699 | static bool | |
700 | riscv_get_map_state (int n, | |
701 | enum riscv_seg_mstate *state, | |
702 | struct disassemble_info *info) | |
703 | { | |
704 | const char *name; | |
705 | ||
706 | /* If the symbol is in a different section, ignore it. */ | |
707 | if (info->section != NULL | |
708 | && info->section != info->symtab[n]->section) | |
709 | return false; | |
710 | ||
711 | name = bfd_asymbol_name(info->symtab[n]); | |
712 | if (strcmp (name, "$x") == 0) | |
713 | *state = MAP_INSN; | |
714 | else if (strcmp (name, "$d") == 0) | |
715 | *state = MAP_DATA; | |
716 | else | |
717 | return false; | |
718 | ||
719 | return true; | |
720 | } | |
721 | ||
722 | /* Check the sorted symbol table (sorted by the symbol value), find the | |
723 | suitable mapping symbols. */ | |
724 | ||
725 | static enum riscv_seg_mstate | |
726 | riscv_search_mapping_symbol (bfd_vma memaddr, | |
727 | struct disassemble_info *info) | |
728 | { | |
729 | enum riscv_seg_mstate mstate; | |
730 | bool from_last_map_symbol; | |
731 | bool found = false; | |
732 | int symbol = -1; | |
733 | int n; | |
734 | ||
735 | /* Decide whether to print the data or instruction by default, in case | |
736 | we can not find the corresponding mapping symbols. */ | |
737 | mstate = MAP_DATA; | |
738 | if ((info->section | |
739 | && info->section->flags & SEC_CODE) | |
740 | || !info->section) | |
741 | mstate = MAP_INSN; | |
742 | ||
743 | if (info->symtab_size == 0 | |
744 | || bfd_asymbol_flavour (*info->symtab) != bfd_target_elf_flavour) | |
745 | return mstate; | |
746 | ||
747 | /* Reset the last_map_symbol if we start to dump a new section. */ | |
748 | if (memaddr <= 0) | |
749 | last_map_symbol = -1; | |
750 | ||
751 | /* If the last stop offset is different from the current one, then | |
752 | don't use the last_map_symbol to search. We usually reset the | |
753 | info->stop_offset when handling a new section. */ | |
754 | from_last_map_symbol = (last_map_symbol >= 0 | |
755 | && info->stop_offset == last_stop_offset); | |
756 | ||
757 | /* Start scanning at the start of the function, or wherever | |
758 | we finished last time. */ | |
759 | n = info->symtab_pos + 1; | |
760 | if (from_last_map_symbol && n >= last_map_symbol) | |
761 | n = last_map_symbol; | |
762 | ||
763 | /* Find the suitable mapping symbol to dump. */ | |
764 | for (; n < info->symtab_size; n++) | |
765 | { | |
766 | bfd_vma addr = bfd_asymbol_value (info->symtab[n]); | |
767 | /* We have searched all possible symbols in the range. */ | |
768 | if (addr > memaddr) | |
769 | break; | |
770 | if (riscv_get_map_state (n, &mstate, info)) | |
771 | { | |
772 | symbol = n; | |
773 | found = true; | |
774 | /* Do not stop searching, in case there are some mapping | |
775 | symbols have the same value, but have different names. | |
776 | Use the last one. */ | |
777 | } | |
778 | } | |
779 | ||
780 | /* We can not find the suitable mapping symbol above. Therefore, we | |
781 | look forwards and try to find it again, but don't go pass the start | |
782 | of the section. Otherwise a data section without mapping symbols | |
783 | can pick up a text mapping symbol of a preceeding section. */ | |
784 | if (!found) | |
785 | { | |
786 | n = info->symtab_pos; | |
787 | if (from_last_map_symbol && n >= last_map_symbol) | |
788 | n = last_map_symbol; | |
789 | ||
790 | for (; n >= 0; n--) | |
791 | { | |
792 | bfd_vma addr = bfd_asymbol_value (info->symtab[n]); | |
793 | /* We have searched all possible symbols in the range. */ | |
794 | if (addr < (info->section ? info->section->vma : 0)) | |
795 | break; | |
796 | /* Stop searching once we find the closed mapping symbol. */ | |
797 | if (riscv_get_map_state (n, &mstate, info)) | |
798 | { | |
799 | symbol = n; | |
800 | found = true; | |
801 | break; | |
802 | } | |
803 | } | |
804 | } | |
805 | ||
806 | /* Save the information for next use. */ | |
807 | last_map_symbol = symbol; | |
808 | last_stop_offset = info->stop_offset; | |
809 | ||
810 | return mstate; | |
811 | } | |
812 | ||
813 | /* Decide which data size we should print. */ | |
814 | ||
815 | static bfd_vma | |
816 | riscv_data_length (bfd_vma memaddr, | |
817 | disassemble_info *info) | |
818 | { | |
819 | bfd_vma length; | |
820 | bool found = false; | |
821 | ||
822 | length = 4; | |
823 | if (info->symtab_size != 0 | |
824 | && bfd_asymbol_flavour (*info->symtab) == bfd_target_elf_flavour | |
825 | && last_map_symbol >= 0) | |
826 | { | |
827 | int n; | |
828 | enum riscv_seg_mstate m = MAP_NONE; | |
829 | for (n = last_map_symbol + 1; n < info->symtab_size; n++) | |
830 | { | |
831 | bfd_vma addr = bfd_asymbol_value (info->symtab[n]); | |
832 | if (addr > memaddr | |
833 | && riscv_get_map_state (n, &m, info)) | |
834 | { | |
835 | if (addr - memaddr < length) | |
836 | length = addr - memaddr; | |
837 | found = true; | |
838 | break; | |
839 | } | |
840 | } | |
841 | } | |
842 | if (!found) | |
843 | { | |
844 | /* Do not set the length which exceeds the section size. */ | |
845 | bfd_vma offset = info->section->vma + info->section->size; | |
846 | offset -= memaddr; | |
847 | length = (offset < length) ? offset : length; | |
848 | } | |
849 | length = length == 3 ? 2 : length; | |
850 | return length; | |
851 | } | |
852 | ||
853 | /* Dump the data contents. */ | |
854 | ||
855 | static int | |
856 | riscv_disassemble_data (bfd_vma memaddr ATTRIBUTE_UNUSED, | |
857 | insn_t data, | |
858 | disassemble_info *info) | |
859 | { | |
860 | info->display_endian = info->endian; | |
861 | ||
862 | switch (info->bytes_per_chunk) | |
863 | { | |
864 | case 1: | |
865 | info->bytes_per_line = 6; | |
866 | (*info->fprintf_func) (info->stream, ".byte\t0x%02llx", | |
867 | (unsigned long long) data); | |
868 | break; | |
869 | case 2: | |
870 | info->bytes_per_line = 8; | |
871 | (*info->fprintf_func) (info->stream, ".short\t0x%04llx", | |
872 | (unsigned long long) data); | |
873 | break; | |
874 | case 4: | |
875 | info->bytes_per_line = 8; | |
876 | (*info->fprintf_func) (info->stream, ".word\t0x%08llx", | |
877 | (unsigned long long) data); | |
878 | break; | |
879 | case 8: | |
880 | info->bytes_per_line = 8; | |
881 | (*info->fprintf_func) (info->stream, ".dword\t0x%016llx", | |
882 | (unsigned long long) data); | |
883 | break; | |
884 | default: | |
885 | abort (); | |
886 | } | |
887 | return info->bytes_per_chunk; | |
888 | } | |
889 | ||
e23eba97 NC |
890 | int |
891 | print_insn_riscv (bfd_vma memaddr, struct disassemble_info *info) | |
892 | { | |
9b9b1092 | 893 | bfd_byte packet[8]; |
e23eba97 | 894 | insn_t insn = 0; |
9b9b1092 | 895 | bfd_vma dump_size; |
e23eba97 | 896 | int status; |
9b9b1092 NC |
897 | enum riscv_seg_mstate mstate; |
898 | int (*riscv_disassembler) (bfd_vma, insn_t, struct disassemble_info *); | |
e23eba97 NC |
899 | |
900 | if (info->disassembler_options != NULL) | |
901 | { | |
902 | parse_riscv_dis_options (info->disassembler_options); | |
903 | /* Avoid repeatedly parsing the options. */ | |
904 | info->disassembler_options = NULL; | |
905 | } | |
906 | else if (riscv_gpr_names == NULL) | |
907 | set_default_riscv_dis_options (); | |
908 | ||
9b9b1092 NC |
909 | mstate = riscv_search_mapping_symbol (memaddr, info); |
910 | /* Save the last mapping state. */ | |
911 | last_map_state = mstate; | |
912 | ||
913 | /* Set the size to dump. */ | |
914 | if (mstate == MAP_DATA | |
915 | && (info->flags & DISASSEMBLE_DATA) == 0) | |
916 | { | |
917 | dump_size = riscv_data_length (memaddr, info); | |
918 | info->bytes_per_chunk = dump_size; | |
919 | riscv_disassembler = riscv_disassemble_data; | |
920 | } | |
921 | else | |
e23eba97 | 922 | { |
9b9b1092 NC |
923 | /* Get the first 2-bytes to check the lenghth of instruction. */ |
924 | status = (*info->read_memory_func) (memaddr, packet, 2, info); | |
e23eba97 NC |
925 | if (status != 0) |
926 | { | |
e23eba97 | 927 | (*info->memory_error_func) (status, memaddr, info); |
685bb4e8 | 928 | return status; |
e23eba97 | 929 | } |
9b9b1092 NC |
930 | insn = (insn_t) bfd_getl16 (packet); |
931 | dump_size = riscv_insn_length (insn); | |
932 | riscv_disassembler = riscv_disassemble_insn; | |
933 | } | |
e23eba97 | 934 | |
9b9b1092 NC |
935 | /* Fetch the instruction to dump. */ |
936 | status = (*info->read_memory_func) (memaddr, packet, dump_size, info); | |
937 | if (status != 0) | |
938 | { | |
939 | (*info->memory_error_func) (status, memaddr, info); | |
685bb4e8 | 940 | return status; |
e23eba97 | 941 | } |
9b9b1092 | 942 | insn = (insn_t) bfd_get_bits (packet, dump_size * 8, false); |
e23eba97 | 943 | |
9b9b1092 | 944 | return (*riscv_disassembler) (memaddr, insn, info); |
e23eba97 NC |
945 | } |
946 | ||
8152e040 NC |
947 | disassembler_ftype |
948 | riscv_get_disassembler (bfd *abfd) | |
949 | { | |
f786c359 NC |
950 | const char *default_arch = "rv64gc"; |
951 | ||
8152e040 NC |
952 | if (abfd) |
953 | { | |
113bb761 JN |
954 | const struct elf_backend_data *ebd = get_elf_backend_data (abfd); |
955 | if (ebd) | |
f786c359 | 956 | { |
113bb761 JN |
957 | const char *sec_name = ebd->obj_attrs_section; |
958 | if (bfd_get_section_by_name (abfd, sec_name) != NULL) | |
959 | { | |
960 | obj_attribute *attr = elf_known_obj_attributes_proc (abfd); | |
961 | unsigned int Tag_a = Tag_RISCV_priv_spec; | |
962 | unsigned int Tag_b = Tag_RISCV_priv_spec_minor; | |
963 | unsigned int Tag_c = Tag_RISCV_priv_spec_revision; | |
964 | riscv_get_priv_spec_class_from_numbers (attr[Tag_a].i, | |
965 | attr[Tag_b].i, | |
966 | attr[Tag_c].i, | |
967 | &default_priv_spec); | |
f786c359 | 968 | default_arch = attr[Tag_RISCV_arch].s; |
113bb761 | 969 | } |
f786c359 | 970 | } |
8152e040 | 971 | } |
f786c359 NC |
972 | |
973 | riscv_release_subset_list (&riscv_subsets); | |
974 | riscv_parse_subset (&riscv_rps_dis, default_arch); | |
975 | return print_insn_riscv; | |
8152e040 NC |
976 | } |
977 | ||
884b49e3 AB |
978 | /* Prevent use of the fake labels that are generated as part of the DWARF |
979 | and for relaxable relocations in the assembler. */ | |
980 | ||
78933a4a | 981 | bool |
884b49e3 AB |
982 | riscv_symbol_is_valid (asymbol * sym, |
983 | struct disassemble_info * info ATTRIBUTE_UNUSED) | |
984 | { | |
985 | const char * name; | |
986 | ||
987 | if (sym == NULL) | |
78933a4a | 988 | return false; |
884b49e3 AB |
989 | |
990 | name = bfd_asymbol_name (sym); | |
991 | ||
9b9b1092 NC |
992 | return (strcmp (name, RISCV_FAKE_LABEL_NAME) != 0 |
993 | && !riscv_elf_is_mapping_symbols (name)); | |
884b49e3 | 994 | } |
3a337a86 AB |
995 | \f |
996 | ||
997 | /* Indices into option argument vector for options accepting an argument. | |
998 | Use RISCV_OPTION_ARG_NONE for options accepting no argument. */ | |
999 | ||
1000 | typedef enum | |
1001 | { | |
1002 | RISCV_OPTION_ARG_NONE = -1, | |
1003 | RISCV_OPTION_ARG_PRIV_SPEC, | |
1004 | ||
1005 | RISCV_OPTION_ARG_COUNT | |
1006 | } riscv_option_arg_t; | |
1007 | ||
1008 | /* Valid RISCV disassembler options. */ | |
1009 | ||
1010 | static struct | |
1011 | { | |
1012 | const char *name; | |
1013 | const char *description; | |
1014 | riscv_option_arg_t arg; | |
1015 | } riscv_options[] = | |
1016 | { | |
1017 | { "numeric", | |
1018 | N_("Print numeric register names, rather than ABI names."), | |
1019 | RISCV_OPTION_ARG_NONE }, | |
1020 | { "no-aliases", | |
1021 | N_("Disassemble only into canonical instructions."), | |
1022 | RISCV_OPTION_ARG_NONE }, | |
1023 | { "priv-spec=", | |
1024 | N_("Print the CSR according to the chosen privilege spec."), | |
1025 | RISCV_OPTION_ARG_PRIV_SPEC } | |
1026 | }; | |
1027 | ||
1028 | /* Build the structure representing valid RISCV disassembler options. | |
1029 | This is done dynamically for maintenance ease purpose; a static | |
1030 | initializer would be unreadable. */ | |
1031 | ||
1032 | const disasm_options_and_args_t * | |
1033 | disassembler_options_riscv (void) | |
1034 | { | |
1035 | static disasm_options_and_args_t *opts_and_args; | |
1036 | ||
1037 | if (opts_and_args == NULL) | |
1038 | { | |
1039 | size_t num_options = ARRAY_SIZE (riscv_options); | |
1040 | size_t num_args = RISCV_OPTION_ARG_COUNT; | |
1041 | disasm_option_arg_t *args; | |
1042 | disasm_options_t *opts; | |
1043 | size_t i, priv_spec_count; | |
1044 | ||
1045 | args = XNEWVEC (disasm_option_arg_t, num_args + 1); | |
1046 | ||
1047 | args[RISCV_OPTION_ARG_PRIV_SPEC].name = "SPEC"; | |
1048 | priv_spec_count = PRIV_SPEC_CLASS_DRAFT - PRIV_SPEC_CLASS_NONE - 1; | |
1049 | args[RISCV_OPTION_ARG_PRIV_SPEC].values | |
1050 | = XNEWVEC (const char *, priv_spec_count + 1); | |
1051 | for (i = 0; i < priv_spec_count; i++) | |
1052 | args[RISCV_OPTION_ARG_PRIV_SPEC].values[i] | |
1053 | = riscv_priv_specs[i].name; | |
1054 | /* The array we return must be NULL terminated. */ | |
1055 | args[RISCV_OPTION_ARG_PRIV_SPEC].values[i] = NULL; | |
1056 | ||
1057 | /* The array we return must be NULL terminated. */ | |
1058 | args[num_args].name = NULL; | |
1059 | args[num_args].values = NULL; | |
1060 | ||
1061 | opts_and_args = XNEW (disasm_options_and_args_t); | |
1062 | opts_and_args->args = args; | |
1063 | ||
1064 | opts = &opts_and_args->options; | |
1065 | opts->name = XNEWVEC (const char *, num_options + 1); | |
1066 | opts->description = XNEWVEC (const char *, num_options + 1); | |
1067 | opts->arg = XNEWVEC (const disasm_option_arg_t *, num_options + 1); | |
1068 | for (i = 0; i < num_options; i++) | |
1069 | { | |
1070 | opts->name[i] = riscv_options[i].name; | |
1071 | opts->description[i] = _(riscv_options[i].description); | |
1072 | if (riscv_options[i].arg != RISCV_OPTION_ARG_NONE) | |
1073 | opts->arg[i] = &args[riscv_options[i].arg]; | |
1074 | else | |
1075 | opts->arg[i] = NULL; | |
1076 | } | |
1077 | /* The array we return must be NULL terminated. */ | |
1078 | opts->name[i] = NULL; | |
1079 | opts->description[i] = NULL; | |
1080 | opts->arg[i] = NULL; | |
1081 | } | |
1082 | ||
1083 | return opts_and_args; | |
1084 | } | |
884b49e3 | 1085 | |
e23eba97 NC |
1086 | void |
1087 | print_riscv_disassembler_options (FILE *stream) | |
1088 | { | |
3a337a86 AB |
1089 | const disasm_options_and_args_t *opts_and_args; |
1090 | const disasm_option_arg_t *args; | |
1091 | const disasm_options_t *opts; | |
1092 | size_t max_len = 0; | |
1093 | size_t i; | |
1094 | size_t j; | |
1095 | ||
1096 | opts_and_args = disassembler_options_riscv (); | |
1097 | opts = &opts_and_args->options; | |
1098 | args = opts_and_args->args; | |
1099 | ||
e23eba97 | 1100 | fprintf (stream, _("\n\ |
3a337a86 | 1101 | The following RISC-V specific disassembler options are supported for use\n\ |
e23eba97 | 1102 | with the -M switch (multiple options should be separated by commas):\n")); |
3a337a86 | 1103 | fprintf (stream, "\n"); |
e23eba97 | 1104 | |
3a337a86 AB |
1105 | /* Compute the length of the longest option name. */ |
1106 | for (i = 0; opts->name[i] != NULL; i++) | |
1107 | { | |
1108 | size_t len = strlen (opts->name[i]); | |
8f595e9b | 1109 | |
3a337a86 AB |
1110 | if (opts->arg[i] != NULL) |
1111 | len += strlen (opts->arg[i]->name); | |
1112 | if (max_len < len) | |
1113 | max_len = len; | |
1114 | } | |
e23eba97 | 1115 | |
3a337a86 AB |
1116 | for (i = 0, max_len++; opts->name[i] != NULL; i++) |
1117 | { | |
1118 | fprintf (stream, " %s", opts->name[i]); | |
1119 | if (opts->arg[i] != NULL) | |
1120 | fprintf (stream, "%s", opts->arg[i]->name); | |
1121 | if (opts->description[i] != NULL) | |
1122 | { | |
1123 | size_t len = strlen (opts->name[i]); | |
1124 | ||
1125 | if (opts->arg != NULL && opts->arg[i] != NULL) | |
1126 | len += strlen (opts->arg[i]->name); | |
1127 | fprintf (stream, "%*c %s", (int) (max_len - len), ' ', | |
1128 | opts->description[i]); | |
1129 | } | |
1130 | fprintf (stream, "\n"); | |
1131 | } | |
1132 | ||
1133 | for (i = 0; args[i].name != NULL; i++) | |
1134 | { | |
1135 | fprintf (stream, _("\n\ | |
1136 | For the options above, the following values are supported for \"%s\":\n "), | |
1137 | args[i].name); | |
1138 | for (j = 0; args[i].values[j] != NULL; j++) | |
1139 | fprintf (stream, " %s", args[i].values[j]); | |
1140 | fprintf (stream, _("\n")); | |
1141 | } | |
e23eba97 NC |
1142 | |
1143 | fprintf (stream, _("\n")); | |
1144 | } |