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e23eba97 | 1 | /* RISC-V disassembler |
a2c58332 | 2 | Copyright (C) 2011-2022 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 | ||
2b8fd839 TO |
35 | /* Current XLEN for the disassembler. */ |
36 | unsigned xlen = 0; | |
37 | ||
38 | /* Default ISA specification version (constant as of now). */ | |
f786c359 | 39 | static enum riscv_spec_class default_isa_spec = ISA_SPEC_CLASS_DRAFT - 1; |
8f595e9b | 40 | |
2b8fd839 TO |
41 | /* Default privileged specification |
42 | (as specified by the ELF attributes or the `priv-spec' option). */ | |
43 | static enum riscv_spec_class default_priv_spec = PRIV_SPEC_CLASS_NONE; | |
f786c359 NC |
44 | |
45 | static riscv_subset_list_t riscv_subsets; | |
46 | static riscv_parse_subset_t riscv_rps_dis = | |
47 | { | |
48 | &riscv_subsets, /* subset_list. */ | |
49 | opcodes_error_handler,/* error_handler. */ | |
50 | &xlen, /* xlen. */ | |
51 | &default_isa_spec, /* isa_spec. */ | |
52 | false, /* check_unknown_prefixed_ext. */ | |
53 | }; | |
54 | ||
e23eba97 NC |
55 | struct riscv_private_data |
56 | { | |
57 | bfd_vma gp; | |
58 | bfd_vma print_addr; | |
59 | bfd_vma hi_addr[OP_MASK_RD + 1]; | |
8fe1be5f TO |
60 | bool to_print_addr; |
61 | bool has_gp; | |
e23eba97 NC |
62 | }; |
63 | ||
9b9b1092 NC |
64 | /* Used for mapping symbols. */ |
65 | static int last_map_symbol = -1; | |
66 | static bfd_vma last_stop_offset = 0; | |
67 | enum riscv_seg_mstate last_map_state; | |
68 | ||
2b8fd839 | 69 | /* Register names as used by the disassembler. */ |
e23eba97 NC |
70 | static const char * const *riscv_gpr_names; |
71 | static const char * const *riscv_fpr_names; | |
72 | ||
dcd709e0 NC |
73 | /* If set, disassemble as most general instruction. */ |
74 | static int no_aliases; | |
e23eba97 | 75 | |
2b8fd839 TO |
76 | |
77 | /* Set default RISC-V disassembler options. */ | |
78 | ||
e23eba97 NC |
79 | static void |
80 | set_default_riscv_dis_options (void) | |
81 | { | |
82 | riscv_gpr_names = riscv_gpr_names_abi; | |
83 | riscv_fpr_names = riscv_fpr_names_abi; | |
84 | no_aliases = 0; | |
85 | } | |
86 | ||
2b8fd839 TO |
87 | /* Parse RISC-V disassembler option (without arguments). */ |
88 | ||
78933a4a | 89 | static bool |
8f595e9b | 90 | parse_riscv_dis_option_without_args (const char *option) |
e23eba97 NC |
91 | { |
92 | if (strcmp (option, "no-aliases") == 0) | |
93 | no_aliases = 1; | |
94 | else if (strcmp (option, "numeric") == 0) | |
95 | { | |
96 | riscv_gpr_names = riscv_gpr_names_numeric; | |
97 | riscv_fpr_names = riscv_fpr_names_numeric; | |
98 | } | |
8f595e9b | 99 | else |
78933a4a AM |
100 | return false; |
101 | return true; | |
8f595e9b NC |
102 | } |
103 | ||
2b8fd839 TO |
104 | /* Parse RISC-V disassembler option (possibly with arguments). */ |
105 | ||
8f595e9b NC |
106 | static void |
107 | parse_riscv_dis_option (const char *option) | |
108 | { | |
109 | char *equal, *value; | |
110 | ||
111 | if (parse_riscv_dis_option_without_args (option)) | |
112 | return; | |
113 | ||
114 | equal = strchr (option, '='); | |
115 | if (equal == NULL) | |
116 | { | |
117 | /* The option without '=' should be defined above. */ | |
118 | opcodes_error_handler (_("unrecognized disassembler option: %s"), option); | |
119 | return; | |
120 | } | |
121 | if (equal == option | |
122 | || *(equal + 1) == '\0') | |
123 | { | |
124 | /* Invalid options with '=', no option name before '=', | |
125 | and no value after '='. */ | |
126 | opcodes_error_handler (_("unrecognized disassembler option with '=': %s"), | |
127 | option); | |
128 | return; | |
129 | } | |
130 | ||
131 | *equal = '\0'; | |
132 | value = equal + 1; | |
133 | if (strcmp (option, "priv-spec") == 0) | |
134 | { | |
3d73d29e NC |
135 | enum riscv_spec_class priv_spec = PRIV_SPEC_CLASS_NONE; |
136 | const char *name = NULL; | |
137 | ||
138 | RISCV_GET_PRIV_SPEC_CLASS (value, priv_spec); | |
139 | if (priv_spec == PRIV_SPEC_CLASS_NONE) | |
b800637e | 140 | opcodes_error_handler (_("unknown privileged spec set by %s=%s"), |
8152e040 NC |
141 | option, value); |
142 | else if (default_priv_spec == PRIV_SPEC_CLASS_NONE) | |
143 | default_priv_spec = priv_spec; | |
144 | else if (default_priv_spec != priv_spec) | |
3d73d29e NC |
145 | { |
146 | RISCV_GET_PRIV_SPEC_NAME (name, default_priv_spec); | |
147 | opcodes_error_handler (_("mis-matched privilege spec set by %s=%s, " | |
148 | "the elf privilege attribute is %s"), | |
149 | option, value, name); | |
150 | } | |
8f595e9b | 151 | } |
e23eba97 NC |
152 | else |
153 | { | |
a6743a54 AM |
154 | /* xgettext:c-format */ |
155 | opcodes_error_handler (_("unrecognized disassembler option: %s"), option); | |
e23eba97 NC |
156 | } |
157 | } | |
158 | ||
2b8fd839 TO |
159 | /* Parse RISC-V disassembler options. */ |
160 | ||
e23eba97 NC |
161 | static void |
162 | parse_riscv_dis_options (const char *opts_in) | |
163 | { | |
164 | char *opts = xstrdup (opts_in), *opt = opts, *opt_end = opts; | |
165 | ||
166 | set_default_riscv_dis_options (); | |
167 | ||
168 | for ( ; opt_end != NULL; opt = opt_end + 1) | |
169 | { | |
170 | if ((opt_end = strchr (opt, ',')) != NULL) | |
171 | *opt_end = 0; | |
172 | parse_riscv_dis_option (opt); | |
173 | } | |
174 | ||
175 | free (opts); | |
176 | } | |
177 | ||
178 | /* Print one argument from an array. */ | |
179 | ||
180 | static void | |
181 | arg_print (struct disassemble_info *info, unsigned long val, | |
182 | const char* const* array, size_t size) | |
183 | { | |
184 | const char *s = val >= size || array[val] == NULL ? "unknown" : array[val]; | |
49d31dc9 | 185 | (*info->fprintf_styled_func) (info->stream, dis_style_text, "%s", s); |
e23eba97 NC |
186 | } |
187 | ||
2b8fd839 TO |
188 | /* If we need to print an address, set its value and state. */ |
189 | ||
e23eba97 | 190 | static void |
c7dee848 JW |
191 | maybe_print_address (struct riscv_private_data *pd, int base_reg, int offset, |
192 | int wide) | |
e23eba97 NC |
193 | { |
194 | if (pd->hi_addr[base_reg] != (bfd_vma)-1) | |
195 | { | |
35fd2b2b | 196 | pd->print_addr = (base_reg != 0 ? pd->hi_addr[base_reg] : 0) + offset; |
e23eba97 NC |
197 | pd->hi_addr[base_reg] = -1; |
198 | } | |
8fe1be5f | 199 | else if (base_reg == X_GP && pd->has_gp) |
e23eba97 NC |
200 | pd->print_addr = pd->gp + offset; |
201 | else if (base_reg == X_TP || base_reg == 0) | |
202 | pd->print_addr = offset; | |
48525554 TO |
203 | else |
204 | return; /* Don't print the address. */ | |
8fe1be5f | 205 | pd->to_print_addr = true; |
c7dee848 JW |
206 | |
207 | /* Sign-extend a 32-bit value to a 64-bit value. */ | |
208 | if (wide) | |
209 | pd->print_addr = (bfd_vma)(int32_t) pd->print_addr; | |
48525554 TO |
210 | |
211 | /* Fit into a 32-bit value on RV32. */ | |
212 | if (xlen == 32) | |
213 | pd->print_addr = (bfd_vma)(uint32_t)pd->print_addr; | |
e23eba97 NC |
214 | } |
215 | ||
216 | /* Print insn arguments for 32/64-bit code. */ | |
217 | ||
218 | static void | |
437e2ff1 | 219 | print_insn_args (const char *oparg, insn_t l, bfd_vma pc, disassemble_info *info) |
e23eba97 NC |
220 | { |
221 | struct riscv_private_data *pd = info->private_data; | |
222 | int rs1 = (l >> OP_SH_RS1) & OP_MASK_RS1; | |
223 | int rd = (l >> OP_SH_RD) & OP_MASK_RD; | |
49d31dc9 | 224 | fprintf_styled_ftype print = info->fprintf_styled_func; |
437e2ff1 | 225 | const char *opargStart; |
e23eba97 | 226 | |
437e2ff1 | 227 | if (*oparg != '\0') |
49d31dc9 | 228 | print (info->stream, dis_style_text, "\t"); |
e23eba97 | 229 | |
437e2ff1 | 230 | for (; *oparg != '\0'; oparg++) |
e23eba97 | 231 | { |
437e2ff1 NC |
232 | opargStart = oparg; |
233 | switch (*oparg) | |
e23eba97 NC |
234 | { |
235 | case 'C': /* RVC */ | |
437e2ff1 | 236 | switch (*++oparg) |
e23eba97 | 237 | { |
dcd709e0 NC |
238 | case 's': /* RS1 x8-x15. */ |
239 | case 'w': /* RS1 x8-x15. */ | |
49d31dc9 | 240 | print (info->stream, dis_style_register, "%s", |
e23eba97 NC |
241 | riscv_gpr_names[EXTRACT_OPERAND (CRS1S, l) + 8]); |
242 | break; | |
dcd709e0 NC |
243 | case 't': /* RS2 x8-x15. */ |
244 | case 'x': /* RS2 x8-x15. */ | |
49d31dc9 | 245 | print (info->stream, dis_style_register, "%s", |
e23eba97 NC |
246 | riscv_gpr_names[EXTRACT_OPERAND (CRS2S, l) + 8]); |
247 | break; | |
dcd709e0 | 248 | case 'U': /* RS1, constrained to equal RD. */ |
49d31dc9 AB |
249 | print (info->stream, dis_style_register, |
250 | "%s", riscv_gpr_names[rd]); | |
e23eba97 | 251 | break; |
dcd709e0 | 252 | case 'c': /* RS1, constrained to equal sp. */ |
49d31dc9 AB |
253 | print (info->stream, dis_style_register, "%s", |
254 | riscv_gpr_names[X_SP]); | |
e23eba97 NC |
255 | break; |
256 | case 'V': /* RS2 */ | |
49d31dc9 | 257 | print (info->stream, dis_style_register, "%s", |
e23eba97 NC |
258 | riscv_gpr_names[EXTRACT_OPERAND (CRS2, l)]); |
259 | break; | |
f91d48de | 260 | case 'o': |
e23eba97 | 261 | case 'j': |
c7dee848 JW |
262 | if (((l & MASK_C_ADDI) == MATCH_C_ADDI) && rd != 0) |
263 | maybe_print_address (pd, rd, EXTRACT_CITYPE_IMM (l), 0); | |
264 | if (info->mach == bfd_mach_riscv64 | |
265 | && ((l & MASK_C_ADDIW) == MATCH_C_ADDIW) && rd != 0) | |
266 | maybe_print_address (pd, rd, EXTRACT_CITYPE_IMM (l), 1); | |
49d31dc9 AB |
267 | print (info->stream, dis_style_immediate, "%d", |
268 | (int)EXTRACT_CITYPE_IMM (l)); | |
e23eba97 NC |
269 | break; |
270 | case 'k': | |
49d31dc9 AB |
271 | print (info->stream, dis_style_address_offset, "%d", |
272 | (int)EXTRACT_CLTYPE_LW_IMM (l)); | |
e23eba97 NC |
273 | break; |
274 | case 'l': | |
49d31dc9 AB |
275 | print (info->stream, dis_style_address_offset, "%d", |
276 | (int)EXTRACT_CLTYPE_LD_IMM (l)); | |
e23eba97 NC |
277 | break; |
278 | case 'm': | |
49d31dc9 AB |
279 | print (info->stream, dis_style_address_offset, "%d", |
280 | (int)EXTRACT_CITYPE_LWSP_IMM (l)); | |
e23eba97 NC |
281 | break; |
282 | case 'n': | |
49d31dc9 AB |
283 | print (info->stream, dis_style_address_offset, "%d", |
284 | (int)EXTRACT_CITYPE_LDSP_IMM (l)); | |
e23eba97 NC |
285 | break; |
286 | case 'K': | |
49d31dc9 AB |
287 | print (info->stream, dis_style_immediate, "%d", |
288 | (int)EXTRACT_CIWTYPE_ADDI4SPN_IMM (l)); | |
e23eba97 NC |
289 | break; |
290 | case 'L': | |
49d31dc9 AB |
291 | print (info->stream, dis_style_immediate, "%d", |
292 | (int)EXTRACT_CITYPE_ADDI16SP_IMM (l)); | |
e23eba97 NC |
293 | break; |
294 | case 'M': | |
49d31dc9 AB |
295 | print (info->stream, dis_style_address_offset, "%d", |
296 | (int)EXTRACT_CSSTYPE_SWSP_IMM (l)); | |
e23eba97 NC |
297 | break; |
298 | case 'N': | |
49d31dc9 AB |
299 | print (info->stream, dis_style_address_offset, "%d", |
300 | (int)EXTRACT_CSSTYPE_SDSP_IMM (l)); | |
e23eba97 NC |
301 | break; |
302 | case 'p': | |
5a9f5403 | 303 | info->target = EXTRACT_CBTYPE_IMM (l) + pc; |
e23eba97 NC |
304 | (*info->print_address_func) (info->target, info); |
305 | break; | |
306 | case 'a': | |
5a9f5403 | 307 | info->target = EXTRACT_CJTYPE_IMM (l) + pc; |
e23eba97 NC |
308 | (*info->print_address_func) (info->target, info); |
309 | break; | |
310 | case 'u': | |
49d31dc9 | 311 | print (info->stream, dis_style_immediate, "0x%x", |
2cfc7c87 | 312 | (unsigned)(EXTRACT_CITYPE_IMM (l) & (RISCV_BIGIMM_REACH-1))); |
e23eba97 NC |
313 | break; |
314 | case '>': | |
49d31dc9 | 315 | print (info->stream, dis_style_immediate, "0x%x", |
2cfc7c87 | 316 | (unsigned)EXTRACT_CITYPE_IMM (l) & 0x3f); |
e23eba97 NC |
317 | break; |
318 | case '<': | |
49d31dc9 | 319 | print (info->stream, dis_style_immediate, "0x%x", |
2cfc7c87 | 320 | (unsigned)EXTRACT_CITYPE_IMM (l) & 0x1f); |
e23eba97 | 321 | break; |
dcd709e0 | 322 | case 'T': /* Floating-point RS2. */ |
49d31dc9 | 323 | print (info->stream, dis_style_register, "%s", |
e23eba97 NC |
324 | riscv_fpr_names[EXTRACT_OPERAND (CRS2, l)]); |
325 | break; | |
dcd709e0 | 326 | case 'D': /* Floating-point RS2 x8-x15. */ |
49d31dc9 | 327 | print (info->stream, dis_style_register, "%s", |
e23eba97 NC |
328 | riscv_fpr_names[EXTRACT_OPERAND (CRS2S, l) + 8]); |
329 | break; | |
330 | } | |
331 | break; | |
332 | ||
65e4a99a NC |
333 | case 'V': /* RVV */ |
334 | switch (*++oparg) | |
335 | { | |
336 | case 'd': | |
337 | case 'f': | |
49d31dc9 | 338 | print (info->stream, dis_style_register, "%s", |
65e4a99a NC |
339 | riscv_vecr_names_numeric[EXTRACT_OPERAND (VD, l)]); |
340 | break; | |
341 | case 'e': | |
342 | if (!EXTRACT_OPERAND (VWD, l)) | |
49d31dc9 AB |
343 | print (info->stream, dis_style_register, "%s", |
344 | riscv_gpr_names[0]); | |
65e4a99a | 345 | else |
49d31dc9 | 346 | print (info->stream, dis_style_register, "%s", |
65e4a99a NC |
347 | riscv_vecr_names_numeric[EXTRACT_OPERAND (VD, l)]); |
348 | break; | |
349 | case 's': | |
49d31dc9 | 350 | print (info->stream, dis_style_register, "%s", |
65e4a99a NC |
351 | riscv_vecr_names_numeric[EXTRACT_OPERAND (VS1, l)]); |
352 | break; | |
353 | case 't': | |
354 | case 'u': /* VS1 == VS2 already verified at this point. */ | |
355 | case 'v': /* VD == VS1 == VS2 already verified at this point. */ | |
49d31dc9 | 356 | print (info->stream, dis_style_register, "%s", |
65e4a99a NC |
357 | riscv_vecr_names_numeric[EXTRACT_OPERAND (VS2, l)]); |
358 | break; | |
359 | case '0': | |
49d31dc9 AB |
360 | print (info->stream, dis_style_register, "%s", |
361 | riscv_vecr_names_numeric[0]); | |
65e4a99a NC |
362 | break; |
363 | case 'b': | |
364 | case 'c': | |
365 | { | |
366 | int imm = (*oparg == 'b') ? EXTRACT_RVV_VB_IMM (l) | |
367 | : EXTRACT_RVV_VC_IMM (l); | |
368 | unsigned int imm_vlmul = EXTRACT_OPERAND (VLMUL, imm); | |
369 | unsigned int imm_vsew = EXTRACT_OPERAND (VSEW, imm); | |
370 | unsigned int imm_vta = EXTRACT_OPERAND (VTA, imm); | |
371 | unsigned int imm_vma = EXTRACT_OPERAND (VMA, imm); | |
abfdb09f | 372 | unsigned int imm_vtype_res = (imm >> 8); |
65e4a99a NC |
373 | |
374 | if (imm_vsew < ARRAY_SIZE (riscv_vsew) | |
375 | && imm_vlmul < ARRAY_SIZE (riscv_vlmul) | |
376 | && imm_vta < ARRAY_SIZE (riscv_vta) | |
377 | && imm_vma < ARRAY_SIZE (riscv_vma) | |
ee083a9e NC |
378 | && !imm_vtype_res |
379 | && riscv_vsew[imm_vsew] != NULL | |
380 | && riscv_vlmul[imm_vlmul] != NULL) | |
49d31dc9 AB |
381 | print (info->stream, dis_style_text, "%s,%s,%s,%s", |
382 | riscv_vsew[imm_vsew], | |
65e4a99a NC |
383 | riscv_vlmul[imm_vlmul], riscv_vta[imm_vta], |
384 | riscv_vma[imm_vma]); | |
385 | else | |
49d31dc9 | 386 | print (info->stream, dis_style_immediate, "%d", imm); |
65e4a99a NC |
387 | } |
388 | break; | |
389 | case 'i': | |
49d31dc9 AB |
390 | print (info->stream, dis_style_immediate, "%d", |
391 | (int)EXTRACT_RVV_VI_IMM (l)); | |
65e4a99a NC |
392 | break; |
393 | case 'j': | |
49d31dc9 AB |
394 | print (info->stream, dis_style_immediate, "%d", |
395 | (int)EXTRACT_RVV_VI_UIMM (l)); | |
65e4a99a NC |
396 | break; |
397 | case 'k': | |
49d31dc9 AB |
398 | print (info->stream, dis_style_immediate, "%d", |
399 | (int)EXTRACT_RVV_OFFSET (l)); | |
65e4a99a NC |
400 | break; |
401 | case 'm': | |
f3a80235 TO |
402 | if (!EXTRACT_OPERAND (VMASK, l)) |
403 | { | |
404 | print (info->stream, dis_style_text, ","); | |
405 | print (info->stream, dis_style_register, "%s", | |
406 | riscv_vecm_names_numeric[0]); | |
407 | } | |
65e4a99a NC |
408 | break; |
409 | } | |
410 | break; | |
411 | ||
e23eba97 NC |
412 | case ',': |
413 | case '(': | |
414 | case ')': | |
415 | case '[': | |
416 | case ']': | |
49d31dc9 | 417 | print (info->stream, dis_style_text, "%c", *oparg); |
e23eba97 NC |
418 | break; |
419 | ||
420 | case '0': | |
dcd709e0 | 421 | /* Only print constant 0 if it is the last argument. */ |
437e2ff1 | 422 | if (!oparg[1]) |
49d31dc9 | 423 | print (info->stream, dis_style_immediate, "0"); |
e23eba97 NC |
424 | break; |
425 | ||
e23eba97 | 426 | case 's': |
35eeb78f | 427 | if ((l & MASK_JALR) == MATCH_JALR) |
48525554 | 428 | maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 0); |
49d31dc9 | 429 | print (info->stream, dis_style_register, "%s", riscv_gpr_names[rs1]); |
e23eba97 NC |
430 | break; |
431 | ||
432 | case 't': | |
49d31dc9 | 433 | print (info->stream, dis_style_register, "%s", |
e23eba97 NC |
434 | riscv_gpr_names[EXTRACT_OPERAND (RS2, l)]); |
435 | break; | |
436 | ||
437 | case 'u': | |
49d31dc9 | 438 | print (info->stream, dis_style_immediate, "0x%x", |
e23eba97 NC |
439 | (unsigned)EXTRACT_UTYPE_IMM (l) >> RISCV_IMM_BITS); |
440 | break; | |
441 | ||
442 | case 'm': | |
443 | arg_print (info, EXTRACT_OPERAND (RM, l), | |
444 | riscv_rm, ARRAY_SIZE (riscv_rm)); | |
445 | break; | |
446 | ||
447 | case 'P': | |
448 | arg_print (info, EXTRACT_OPERAND (PRED, l), | |
449 | riscv_pred_succ, ARRAY_SIZE (riscv_pred_succ)); | |
450 | break; | |
451 | ||
452 | case 'Q': | |
453 | arg_print (info, EXTRACT_OPERAND (SUCC, l), | |
454 | riscv_pred_succ, ARRAY_SIZE (riscv_pred_succ)); | |
455 | break; | |
456 | ||
457 | case 'o': | |
c7dee848 | 458 | maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 0); |
b52d3cfc | 459 | /* Fall through. */ |
e23eba97 NC |
460 | case 'j': |
461 | if (((l & MASK_ADDI) == MATCH_ADDI && rs1 != 0) | |
462 | || (l & MASK_JALR) == MATCH_JALR) | |
c7dee848 JW |
463 | maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 0); |
464 | if (info->mach == bfd_mach_riscv64 | |
465 | && ((l & MASK_ADDIW) == MATCH_ADDIW) && rs1 != 0) | |
466 | maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 1); | |
49d31dc9 AB |
467 | print (info->stream, dis_style_immediate, "%d", |
468 | (int)EXTRACT_ITYPE_IMM (l)); | |
e23eba97 NC |
469 | break; |
470 | ||
471 | case 'q': | |
c7dee848 | 472 | maybe_print_address (pd, rs1, EXTRACT_STYPE_IMM (l), 0); |
49d31dc9 AB |
473 | print (info->stream, dis_style_address_offset, "%d", |
474 | (int)EXTRACT_STYPE_IMM (l)); | |
e23eba97 NC |
475 | break; |
476 | ||
3b374308 | 477 | case 'f': |
49d31dc9 AB |
478 | print (info->stream, dis_style_address_offset, "%d", |
479 | (int)EXTRACT_STYPE_IMM (l)); | |
3b374308 TO |
480 | break; |
481 | ||
e23eba97 | 482 | case 'a': |
5a9f5403 | 483 | info->target = EXTRACT_JTYPE_IMM (l) + pc; |
e23eba97 NC |
484 | (*info->print_address_func) (info->target, info); |
485 | break; | |
486 | ||
487 | case 'p': | |
5a9f5403 | 488 | info->target = EXTRACT_BTYPE_IMM (l) + pc; |
e23eba97 NC |
489 | (*info->print_address_func) (info->target, info); |
490 | break; | |
491 | ||
492 | case 'd': | |
493 | if ((l & MASK_AUIPC) == MATCH_AUIPC) | |
494 | pd->hi_addr[rd] = pc + EXTRACT_UTYPE_IMM (l); | |
495 | else if ((l & MASK_LUI) == MATCH_LUI) | |
496 | pd->hi_addr[rd] = EXTRACT_UTYPE_IMM (l); | |
497 | else if ((l & MASK_C_LUI) == MATCH_C_LUI) | |
5a9f5403 | 498 | pd->hi_addr[rd] = EXTRACT_CITYPE_LUI_IMM (l); |
49d31dc9 | 499 | print (info->stream, dis_style_register, "%s", riscv_gpr_names[rd]); |
e23eba97 NC |
500 | break; |
501 | ||
3d1cafa0 | 502 | case 'y': |
9a76ca16 | 503 | print (info->stream, dis_style_immediate, "0x%x", |
2cfc7c87 | 504 | (unsigned)EXTRACT_OPERAND (BS, l)); |
3d1cafa0 | 505 | break; |
506 | ||
e23eba97 | 507 | case 'z': |
49d31dc9 | 508 | print (info->stream, dis_style_register, "%s", riscv_gpr_names[0]); |
e23eba97 NC |
509 | break; |
510 | ||
511 | case '>': | |
49d31dc9 | 512 | print (info->stream, dis_style_immediate, "0x%x", |
2cfc7c87 | 513 | (unsigned)EXTRACT_OPERAND (SHAMT, l)); |
e23eba97 NC |
514 | break; |
515 | ||
516 | case '<': | |
49d31dc9 | 517 | print (info->stream, dis_style_immediate, "0x%x", |
2cfc7c87 | 518 | (unsigned)EXTRACT_OPERAND (SHAMTW, l)); |
e23eba97 NC |
519 | break; |
520 | ||
521 | case 'S': | |
522 | case 'U': | |
49d31dc9 | 523 | print (info->stream, dis_style_register, "%s", riscv_fpr_names[rs1]); |
e23eba97 NC |
524 | break; |
525 | ||
526 | case 'T': | |
49d31dc9 AB |
527 | print (info->stream, dis_style_register, "%s", |
528 | riscv_fpr_names[EXTRACT_OPERAND (RS2, l)]); | |
e23eba97 NC |
529 | break; |
530 | ||
531 | case 'D': | |
49d31dc9 | 532 | print (info->stream, dis_style_register, "%s", riscv_fpr_names[rd]); |
e23eba97 NC |
533 | break; |
534 | ||
535 | case 'R': | |
49d31dc9 AB |
536 | print (info->stream, dis_style_register, "%s", |
537 | riscv_fpr_names[EXTRACT_OPERAND (RS3, l)]); | |
e23eba97 NC |
538 | break; |
539 | ||
540 | case 'E': | |
541 | { | |
dcd709e0 | 542 | static const char *riscv_csr_hash[4096]; /* Total 2^12 CSRs. */ |
78933a4a | 543 | static bool init_csr = false; |
e23eba97 | 544 | unsigned int csr = EXTRACT_OPERAND (CSR, l); |
8f595e9b NC |
545 | |
546 | if (!init_csr) | |
e23eba97 | 547 | { |
8f595e9b NC |
548 | unsigned int i; |
549 | for (i = 0; i < 4096; i++) | |
550 | riscv_csr_hash[i] = NULL; | |
551 | ||
dcd709e0 | 552 | /* Set to the newest privileged version. */ |
8f595e9b NC |
553 | if (default_priv_spec == PRIV_SPEC_CLASS_NONE) |
554 | default_priv_spec = PRIV_SPEC_CLASS_DRAFT - 1; | |
555 | ||
08ccfccf NC |
556 | #define DECLARE_CSR(name, num, class, define_version, abort_version) \ |
557 | if (riscv_csr_hash[num] == NULL \ | |
558 | && ((define_version == PRIV_SPEC_CLASS_NONE \ | |
559 | && abort_version == PRIV_SPEC_CLASS_NONE) \ | |
560 | || (default_priv_spec >= define_version \ | |
561 | && default_priv_spec < abort_version))) \ | |
8f595e9b NC |
562 | riscv_csr_hash[num] = #name; |
563 | #define DECLARE_CSR_ALIAS(name, num, class, define_version, abort_version) \ | |
564 | DECLARE_CSR (name, num, class, define_version, abort_version) | |
e23eba97 NC |
565 | #include "opcode/riscv-opc.h" |
566 | #undef DECLARE_CSR | |
567 | } | |
8f595e9b NC |
568 | |
569 | if (riscv_csr_hash[csr] != NULL) | |
e840e61c AB |
570 | print (info->stream, dis_style_register, "%s", |
571 | riscv_csr_hash[csr]); | |
e23eba97 | 572 | else |
9a76ca16 | 573 | print (info->stream, dis_style_immediate, "0x%x", csr); |
e23eba97 NC |
574 | break; |
575 | } | |
576 | ||
3d1cafa0 | 577 | case 'Y': |
9a76ca16 | 578 | print (info->stream, dis_style_immediate, "0x%x", |
2cfc7c87 | 579 | (unsigned) EXTRACT_OPERAND (RNUM, l)); |
3d1cafa0 | 580 | break; |
581 | ||
e23eba97 | 582 | case 'Z': |
9a76ca16 | 583 | print (info->stream, dis_style_immediate, "%d", rs1); |
e23eba97 NC |
584 | break; |
585 | ||
8b7419c4 CM |
586 | case 'X': /* Integer immediate. */ |
587 | { | |
588 | size_t n; | |
589 | size_t s; | |
590 | bool sign; | |
591 | ||
592 | switch (*++oparg) | |
593 | { | |
25236d63 CM |
594 | case 'l': /* Literal. */ |
595 | oparg++; | |
596 | while (*oparg && *oparg != ',') | |
597 | { | |
a13886e2 | 598 | print (info->stream, dis_style_immediate, "%c", *oparg); |
25236d63 CM |
599 | oparg++; |
600 | } | |
601 | oparg--; | |
602 | break; | |
8b7419c4 CM |
603 | case 's': /* 'XsN@S' ... N-bit signed immediate at bit S. */ |
604 | sign = true; | |
605 | goto print_imm; | |
606 | case 'u': /* 'XuN@S' ... N-bit unsigned immediate at bit S. */ | |
607 | sign = false; | |
608 | goto print_imm; | |
609 | print_imm: | |
b0423163 | 610 | n = strtol (oparg + 1, (char **)&oparg, 10); |
8b7419c4 CM |
611 | if (*oparg != '@') |
612 | goto undefined_modifier; | |
b0423163 | 613 | s = strtol (oparg + 1, (char **)&oparg, 10); |
8b7419c4 CM |
614 | oparg--; |
615 | ||
616 | if (!sign) | |
15543290 TO |
617 | print (info->stream, dis_style_immediate, "%lu", |
618 | (unsigned long)EXTRACT_U_IMM (n, s, l)); | |
8b7419c4 | 619 | else |
15543290 TO |
620 | print (info->stream, dis_style_immediate, "%li", |
621 | (signed long)EXTRACT_S_IMM (n, s, l)); | |
8b7419c4 CM |
622 | break; |
623 | default: | |
624 | goto undefined_modifier; | |
625 | } | |
626 | } | |
627 | break; | |
e23eba97 | 628 | default: |
8b7419c4 | 629 | undefined_modifier: |
e23eba97 | 630 | /* xgettext:c-format */ |
49d31dc9 AB |
631 | print (info->stream, dis_style_text, |
632 | _("# internal error, undefined modifier (%c)"), | |
437e2ff1 | 633 | *opargStart); |
e23eba97 NC |
634 | return; |
635 | } | |
636 | } | |
637 | } | |
638 | ||
639 | /* Print the RISC-V instruction at address MEMADDR in debugged memory, | |
640 | on using INFO. Returns length of the instruction, in bytes. | |
641 | BIGENDIAN must be 1 if this is big-endian code, 0 if | |
642 | this is little-endian code. */ | |
643 | ||
644 | static int | |
645 | riscv_disassemble_insn (bfd_vma memaddr, insn_t word, disassemble_info *info) | |
646 | { | |
647 | const struct riscv_opcode *op; | |
78933a4a | 648 | static bool init = 0; |
e23eba97 NC |
649 | static const struct riscv_opcode *riscv_hash[OP_MASK_OP + 1]; |
650 | struct riscv_private_data *pd; | |
651 | int insnlen; | |
652 | ||
653 | #define OP_HASH_IDX(i) ((i) & (riscv_insn_length (i) == 2 ? 0x3 : OP_MASK_OP)) | |
654 | ||
655 | /* Build a hash table to shorten the search time. */ | |
656 | if (! init) | |
657 | { | |
658 | for (op = riscv_opcodes; op->name; op++) | |
659 | if (!riscv_hash[OP_HASH_IDX (op->match)]) | |
660 | riscv_hash[OP_HASH_IDX (op->match)] = op; | |
661 | ||
662 | init = 1; | |
663 | } | |
664 | ||
665 | if (info->private_data == NULL) | |
666 | { | |
667 | int i; | |
668 | ||
669 | pd = info->private_data = xcalloc (1, sizeof (struct riscv_private_data)); | |
8fe1be5f TO |
670 | pd->gp = 0; |
671 | pd->print_addr = 0; | |
e23eba97 NC |
672 | for (i = 0; i < (int)ARRAY_SIZE (pd->hi_addr); i++) |
673 | pd->hi_addr[i] = -1; | |
8fe1be5f TO |
674 | pd->to_print_addr = false; |
675 | pd->has_gp = false; | |
e23eba97 NC |
676 | |
677 | for (i = 0; i < info->symtab_size; i++) | |
b5292032 | 678 | if (strcmp (bfd_asymbol_name (info->symtab[i]), RISCV_GP_SYMBOL) == 0) |
8fe1be5f TO |
679 | { |
680 | pd->gp = bfd_asymbol_value (info->symtab[i]); | |
681 | pd->has_gp = true; | |
682 | } | |
e23eba97 NC |
683 | } |
684 | else | |
685 | pd = info->private_data; | |
686 | ||
687 | insnlen = riscv_insn_length (word); | |
688 | ||
d7560e2d JW |
689 | /* RISC-V instructions are always little-endian. */ |
690 | info->endian_code = BFD_ENDIAN_LITTLE; | |
691 | ||
e23eba97 NC |
692 | info->bytes_per_chunk = insnlen % 4 == 0 ? 4 : 2; |
693 | info->bytes_per_line = 8; | |
d7560e2d JW |
694 | /* We don't support constant pools, so this must be code. */ |
695 | info->display_endian = info->endian_code; | |
e23eba97 NC |
696 | info->insn_info_valid = 1; |
697 | info->branch_delay_insns = 0; | |
698 | info->data_size = 0; | |
699 | info->insn_type = dis_nonbranch; | |
700 | info->target = 0; | |
701 | info->target2 = 0; | |
702 | ||
703 | op = riscv_hash[OP_HASH_IDX (word)]; | |
704 | if (op != NULL) | |
705 | { | |
2922d21d AW |
706 | /* If XLEN is not known, get its value from the ELF class. */ |
707 | if (info->mach == bfd_mach_riscv64) | |
708 | xlen = 64; | |
709 | else if (info->mach == bfd_mach_riscv32) | |
710 | xlen = 32; | |
711 | else if (info->section != NULL) | |
e23eba97 NC |
712 | { |
713 | Elf_Internal_Ehdr *ehdr = elf_elfheader (info->section->owner); | |
714 | xlen = ehdr->e_ident[EI_CLASS] == ELFCLASS64 ? 64 : 32; | |
715 | } | |
716 | ||
2b8fd839 | 717 | /* If arch has the Zfinx extension, replace FPR with GPR. */ |
de83e514 | 718 | if(riscv_subset_supports (&riscv_rps_dis, "zfinx")) |
3d5d6bd5 | 719 | riscv_fpr_names = riscv_gpr_names; |
de83e514 | 720 | |
e23eba97 NC |
721 | for (; op->name; op++) |
722 | { | |
723 | /* Does the opcode match? */ | |
724 | if (! (op->match_func) (op, word)) | |
725 | continue; | |
726 | /* Is this a pseudo-instruction and may we print it as such? */ | |
727 | if (no_aliases && (op->pinfo & INSN_ALIAS)) | |
728 | continue; | |
729 | /* Is this instruction restricted to a certain value of XLEN? */ | |
43135d3b | 730 | if ((op->xlen_requirement != 0) && (op->xlen_requirement != xlen)) |
e23eba97 | 731 | continue; |
2b8fd839 | 732 | /* Is this instruction supported by the current architecture? */ |
f786c359 NC |
733 | if (!riscv_multi_subset_supports (&riscv_rps_dis, op->insn_class)) |
734 | continue; | |
735 | ||
e23eba97 | 736 | /* It's a match. */ |
49d31dc9 AB |
737 | (*info->fprintf_styled_func) (info->stream, dis_style_mnemonic, |
738 | "%s", op->name); | |
e23eba97 NC |
739 | print_insn_args (op->args, word, memaddr, info); |
740 | ||
741 | /* Try to disassemble multi-instruction addressing sequences. */ | |
8fe1be5f | 742 | if (pd->to_print_addr) |
e23eba97 NC |
743 | { |
744 | info->target = pd->print_addr; | |
49d31dc9 AB |
745 | (*info->fprintf_styled_func) |
746 | (info->stream, dis_style_comment_start, " # "); | |
e23eba97 | 747 | (*info->print_address_func) (info->target, info); |
8fe1be5f | 748 | pd->to_print_addr = false; |
e23eba97 NC |
749 | } |
750 | ||
eb41b248 JW |
751 | /* Finish filling out insn_info fields. */ |
752 | switch (op->pinfo & INSN_TYPE) | |
753 | { | |
754 | case INSN_BRANCH: | |
755 | info->insn_type = dis_branch; | |
756 | break; | |
757 | case INSN_CONDBRANCH: | |
758 | info->insn_type = dis_condbranch; | |
759 | break; | |
760 | case INSN_JSR: | |
761 | info->insn_type = dis_jsr; | |
762 | break; | |
763 | case INSN_DREF: | |
764 | info->insn_type = dis_dref; | |
765 | break; | |
766 | default: | |
767 | break; | |
768 | } | |
769 | ||
770 | if (op->pinfo & INSN_DATA_SIZE) | |
771 | { | |
772 | int size = ((op->pinfo & INSN_DATA_SIZE) | |
773 | >> INSN_DATA_SIZE_SHIFT); | |
774 | info->data_size = 1 << (size - 1); | |
775 | } | |
776 | ||
e23eba97 NC |
777 | return insnlen; |
778 | } | |
779 | } | |
780 | ||
781 | /* We did not find a match, so just print the instruction bits. */ | |
782 | info->insn_type = dis_noninsn; | |
6a7f5766 AB |
783 | switch (insnlen) |
784 | { | |
785 | case 2: | |
786 | case 4: | |
787 | case 8: | |
49d31dc9 | 788 | (*info->fprintf_styled_func) |
f3a80235 TO |
789 | (info->stream, dis_style_assembler_directive, ".%dbyte", insnlen); |
790 | (*info->fprintf_styled_func) (info->stream, dis_style_text, "\t"); | |
49d31dc9 AB |
791 | (*info->fprintf_styled_func) (info->stream, dis_style_immediate, |
792 | "0x%llx", (unsigned long long) word); | |
6a7f5766 AB |
793 | break; |
794 | default: | |
795 | { | |
796 | int i; | |
49d31dc9 | 797 | (*info->fprintf_styled_func) |
f3a80235 TO |
798 | (info->stream, dis_style_assembler_directive, ".byte"); |
799 | (*info->fprintf_styled_func) (info->stream, dis_style_text, "\t"); | |
6a7f5766 AB |
800 | for (i = 0; i < insnlen; ++i) |
801 | { | |
802 | if (i > 0) | |
49d31dc9 AB |
803 | (*info->fprintf_styled_func) (info->stream, dis_style_text, |
804 | ", "); | |
805 | (*info->fprintf_styled_func) (info->stream, dis_style_immediate, | |
806 | "0x%02x", | |
807 | (unsigned int) (word & 0xff)); | |
6a7f5766 AB |
808 | word >>= 8; |
809 | } | |
810 | } | |
811 | break; | |
812 | } | |
e23eba97 NC |
813 | return insnlen; |
814 | } | |
815 | ||
9b9b1092 NC |
816 | /* Return true if we find the suitable mapping symbol, |
817 | and also update the STATE. Otherwise, return false. */ | |
818 | ||
819 | static bool | |
820 | riscv_get_map_state (int n, | |
821 | enum riscv_seg_mstate *state, | |
822 | struct disassemble_info *info) | |
823 | { | |
824 | const char *name; | |
825 | ||
826 | /* If the symbol is in a different section, ignore it. */ | |
827 | if (info->section != NULL | |
828 | && info->section != info->symtab[n]->section) | |
829 | return false; | |
830 | ||
831 | name = bfd_asymbol_name(info->symtab[n]); | |
832 | if (strcmp (name, "$x") == 0) | |
833 | *state = MAP_INSN; | |
834 | else if (strcmp (name, "$d") == 0) | |
835 | *state = MAP_DATA; | |
836 | else | |
837 | return false; | |
838 | ||
839 | return true; | |
840 | } | |
841 | ||
842 | /* Check the sorted symbol table (sorted by the symbol value), find the | |
843 | suitable mapping symbols. */ | |
844 | ||
845 | static enum riscv_seg_mstate | |
846 | riscv_search_mapping_symbol (bfd_vma memaddr, | |
847 | struct disassemble_info *info) | |
848 | { | |
849 | enum riscv_seg_mstate mstate; | |
850 | bool from_last_map_symbol; | |
851 | bool found = false; | |
852 | int symbol = -1; | |
853 | int n; | |
854 | ||
855 | /* Decide whether to print the data or instruction by default, in case | |
856 | we can not find the corresponding mapping symbols. */ | |
857 | mstate = MAP_DATA; | |
858 | if ((info->section | |
859 | && info->section->flags & SEC_CODE) | |
860 | || !info->section) | |
861 | mstate = MAP_INSN; | |
862 | ||
863 | if (info->symtab_size == 0 | |
864 | || bfd_asymbol_flavour (*info->symtab) != bfd_target_elf_flavour) | |
865 | return mstate; | |
866 | ||
867 | /* Reset the last_map_symbol if we start to dump a new section. */ | |
868 | if (memaddr <= 0) | |
869 | last_map_symbol = -1; | |
870 | ||
871 | /* If the last stop offset is different from the current one, then | |
872 | don't use the last_map_symbol to search. We usually reset the | |
873 | info->stop_offset when handling a new section. */ | |
874 | from_last_map_symbol = (last_map_symbol >= 0 | |
875 | && info->stop_offset == last_stop_offset); | |
876 | ||
877 | /* Start scanning at the start of the function, or wherever | |
878 | we finished last time. */ | |
879 | n = info->symtab_pos + 1; | |
880 | if (from_last_map_symbol && n >= last_map_symbol) | |
881 | n = last_map_symbol; | |
882 | ||
883 | /* Find the suitable mapping symbol to dump. */ | |
884 | for (; n < info->symtab_size; n++) | |
885 | { | |
886 | bfd_vma addr = bfd_asymbol_value (info->symtab[n]); | |
887 | /* We have searched all possible symbols in the range. */ | |
888 | if (addr > memaddr) | |
889 | break; | |
890 | if (riscv_get_map_state (n, &mstate, info)) | |
891 | { | |
892 | symbol = n; | |
893 | found = true; | |
894 | /* Do not stop searching, in case there are some mapping | |
895 | symbols have the same value, but have different names. | |
896 | Use the last one. */ | |
897 | } | |
898 | } | |
899 | ||
900 | /* We can not find the suitable mapping symbol above. Therefore, we | |
901 | look forwards and try to find it again, but don't go pass the start | |
902 | of the section. Otherwise a data section without mapping symbols | |
903 | can pick up a text mapping symbol of a preceeding section. */ | |
904 | if (!found) | |
905 | { | |
906 | n = info->symtab_pos; | |
907 | if (from_last_map_symbol && n >= last_map_symbol) | |
908 | n = last_map_symbol; | |
909 | ||
910 | for (; n >= 0; n--) | |
911 | { | |
912 | bfd_vma addr = bfd_asymbol_value (info->symtab[n]); | |
913 | /* We have searched all possible symbols in the range. */ | |
914 | if (addr < (info->section ? info->section->vma : 0)) | |
915 | break; | |
916 | /* Stop searching once we find the closed mapping symbol. */ | |
917 | if (riscv_get_map_state (n, &mstate, info)) | |
918 | { | |
919 | symbol = n; | |
920 | found = true; | |
921 | break; | |
922 | } | |
923 | } | |
924 | } | |
925 | ||
926 | /* Save the information for next use. */ | |
927 | last_map_symbol = symbol; | |
928 | last_stop_offset = info->stop_offset; | |
929 | ||
930 | return mstate; | |
931 | } | |
932 | ||
933 | /* Decide which data size we should print. */ | |
934 | ||
935 | static bfd_vma | |
936 | riscv_data_length (bfd_vma memaddr, | |
937 | disassemble_info *info) | |
938 | { | |
939 | bfd_vma length; | |
940 | bool found = false; | |
941 | ||
942 | length = 4; | |
943 | if (info->symtab_size != 0 | |
944 | && bfd_asymbol_flavour (*info->symtab) == bfd_target_elf_flavour | |
945 | && last_map_symbol >= 0) | |
946 | { | |
947 | int n; | |
948 | enum riscv_seg_mstate m = MAP_NONE; | |
949 | for (n = last_map_symbol + 1; n < info->symtab_size; n++) | |
950 | { | |
951 | bfd_vma addr = bfd_asymbol_value (info->symtab[n]); | |
952 | if (addr > memaddr | |
953 | && riscv_get_map_state (n, &m, info)) | |
954 | { | |
955 | if (addr - memaddr < length) | |
956 | length = addr - memaddr; | |
957 | found = true; | |
958 | break; | |
959 | } | |
960 | } | |
961 | } | |
962 | if (!found) | |
963 | { | |
964 | /* Do not set the length which exceeds the section size. */ | |
965 | bfd_vma offset = info->section->vma + info->section->size; | |
966 | offset -= memaddr; | |
967 | length = (offset < length) ? offset : length; | |
968 | } | |
969 | length = length == 3 ? 2 : length; | |
970 | return length; | |
971 | } | |
972 | ||
973 | /* Dump the data contents. */ | |
974 | ||
975 | static int | |
976 | riscv_disassemble_data (bfd_vma memaddr ATTRIBUTE_UNUSED, | |
977 | insn_t data, | |
978 | disassemble_info *info) | |
979 | { | |
980 | info->display_endian = info->endian; | |
981 | ||
982 | switch (info->bytes_per_chunk) | |
983 | { | |
984 | case 1: | |
985 | info->bytes_per_line = 6; | |
49d31dc9 | 986 | (*info->fprintf_styled_func) |
f3a80235 TO |
987 | (info->stream, dis_style_assembler_directive, ".byte"); |
988 | (*info->fprintf_styled_func) (info->stream, dis_style_text, "\t"); | |
989 | (*info->fprintf_styled_func) (info->stream, dis_style_immediate, | |
990 | "0x%02x", (unsigned)data); | |
9b9b1092 NC |
991 | break; |
992 | case 2: | |
993 | info->bytes_per_line = 8; | |
49d31dc9 | 994 | (*info->fprintf_styled_func) |
f3a80235 TO |
995 | (info->stream, dis_style_assembler_directive, ".short"); |
996 | (*info->fprintf_styled_func) (info->stream, dis_style_text, "\t"); | |
49d31dc9 | 997 | (*info->fprintf_styled_func) |
e0b004c5 | 998 | (info->stream, dis_style_immediate, "0x%04x", (unsigned) data); |
9b9b1092 NC |
999 | break; |
1000 | case 4: | |
1001 | info->bytes_per_line = 8; | |
49d31dc9 | 1002 | (*info->fprintf_styled_func) |
f3a80235 TO |
1003 | (info->stream, dis_style_assembler_directive, ".word"); |
1004 | (*info->fprintf_styled_func) (info->stream, dis_style_text, "\t"); | |
49d31dc9 | 1005 | (*info->fprintf_styled_func) |
e0b004c5 TO |
1006 | (info->stream, dis_style_immediate, "0x%08lx", |
1007 | (unsigned long) data); | |
9b9b1092 NC |
1008 | break; |
1009 | case 8: | |
1010 | info->bytes_per_line = 8; | |
49d31dc9 | 1011 | (*info->fprintf_styled_func) |
f3a80235 TO |
1012 | (info->stream, dis_style_assembler_directive, ".dword"); |
1013 | (*info->fprintf_styled_func) (info->stream, dis_style_text, "\t"); | |
49d31dc9 AB |
1014 | (*info->fprintf_styled_func) |
1015 | (info->stream, dis_style_immediate, "0x%016llx", | |
1016 | (unsigned long long) data); | |
9b9b1092 NC |
1017 | break; |
1018 | default: | |
1019 | abort (); | |
1020 | } | |
1021 | return info->bytes_per_chunk; | |
1022 | } | |
1023 | ||
e23eba97 NC |
1024 | int |
1025 | print_insn_riscv (bfd_vma memaddr, struct disassemble_info *info) | |
1026 | { | |
73e30e72 | 1027 | bfd_byte packet[RISCV_MAX_INSN_LEN]; |
e23eba97 | 1028 | insn_t insn = 0; |
9b9b1092 | 1029 | bfd_vma dump_size; |
e23eba97 | 1030 | int status; |
9b9b1092 NC |
1031 | enum riscv_seg_mstate mstate; |
1032 | int (*riscv_disassembler) (bfd_vma, insn_t, struct disassemble_info *); | |
e23eba97 NC |
1033 | |
1034 | if (info->disassembler_options != NULL) | |
1035 | { | |
1036 | parse_riscv_dis_options (info->disassembler_options); | |
1037 | /* Avoid repeatedly parsing the options. */ | |
1038 | info->disassembler_options = NULL; | |
1039 | } | |
1040 | else if (riscv_gpr_names == NULL) | |
1041 | set_default_riscv_dis_options (); | |
1042 | ||
9b9b1092 NC |
1043 | mstate = riscv_search_mapping_symbol (memaddr, info); |
1044 | /* Save the last mapping state. */ | |
1045 | last_map_state = mstate; | |
1046 | ||
1047 | /* Set the size to dump. */ | |
1048 | if (mstate == MAP_DATA | |
1049 | && (info->flags & DISASSEMBLE_DATA) == 0) | |
1050 | { | |
1051 | dump_size = riscv_data_length (memaddr, info); | |
1052 | info->bytes_per_chunk = dump_size; | |
1053 | riscv_disassembler = riscv_disassemble_data; | |
1054 | } | |
1055 | else | |
e23eba97 | 1056 | { |
9b9b1092 NC |
1057 | /* Get the first 2-bytes to check the lenghth of instruction. */ |
1058 | status = (*info->read_memory_func) (memaddr, packet, 2, info); | |
e23eba97 NC |
1059 | if (status != 0) |
1060 | { | |
e23eba97 | 1061 | (*info->memory_error_func) (status, memaddr, info); |
685bb4e8 | 1062 | return status; |
e23eba97 | 1063 | } |
9b9b1092 NC |
1064 | insn = (insn_t) bfd_getl16 (packet); |
1065 | dump_size = riscv_insn_length (insn); | |
1066 | riscv_disassembler = riscv_disassemble_insn; | |
1067 | } | |
e23eba97 | 1068 | |
9b9b1092 NC |
1069 | /* Fetch the instruction to dump. */ |
1070 | status = (*info->read_memory_func) (memaddr, packet, dump_size, info); | |
1071 | if (status != 0) | |
1072 | { | |
1073 | (*info->memory_error_func) (status, memaddr, info); | |
685bb4e8 | 1074 | return status; |
e23eba97 | 1075 | } |
9b9b1092 | 1076 | insn = (insn_t) bfd_get_bits (packet, dump_size * 8, false); |
e23eba97 | 1077 | |
9b9b1092 | 1078 | return (*riscv_disassembler) (memaddr, insn, info); |
e23eba97 NC |
1079 | } |
1080 | ||
8152e040 NC |
1081 | disassembler_ftype |
1082 | riscv_get_disassembler (bfd *abfd) | |
1083 | { | |
f786c359 NC |
1084 | const char *default_arch = "rv64gc"; |
1085 | ||
16089f32 | 1086 | if (abfd && bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
8152e040 | 1087 | { |
16089f32 TH |
1088 | const char *sec_name = get_elf_backend_data (abfd)->obj_attrs_section; |
1089 | if (bfd_get_section_by_name (abfd, sec_name) != NULL) | |
f786c359 | 1090 | { |
16089f32 TH |
1091 | obj_attribute *attr = elf_known_obj_attributes_proc (abfd); |
1092 | unsigned int Tag_a = Tag_RISCV_priv_spec; | |
1093 | unsigned int Tag_b = Tag_RISCV_priv_spec_minor; | |
1094 | unsigned int Tag_c = Tag_RISCV_priv_spec_revision; | |
1095 | riscv_get_priv_spec_class_from_numbers (attr[Tag_a].i, | |
1096 | attr[Tag_b].i, | |
1097 | attr[Tag_c].i, | |
1098 | &default_priv_spec); | |
1099 | default_arch = attr[Tag_RISCV_arch].s; | |
f786c359 | 1100 | } |
8152e040 | 1101 | } |
f786c359 NC |
1102 | |
1103 | riscv_release_subset_list (&riscv_subsets); | |
1104 | riscv_parse_subset (&riscv_rps_dis, default_arch); | |
1105 | return print_insn_riscv; | |
8152e040 NC |
1106 | } |
1107 | ||
884b49e3 AB |
1108 | /* Prevent use of the fake labels that are generated as part of the DWARF |
1109 | and for relaxable relocations in the assembler. */ | |
1110 | ||
78933a4a | 1111 | bool |
884b49e3 AB |
1112 | riscv_symbol_is_valid (asymbol * sym, |
1113 | struct disassemble_info * info ATTRIBUTE_UNUSED) | |
1114 | { | |
1115 | const char * name; | |
1116 | ||
1117 | if (sym == NULL) | |
78933a4a | 1118 | return false; |
884b49e3 AB |
1119 | |
1120 | name = bfd_asymbol_name (sym); | |
1121 | ||
9b9b1092 NC |
1122 | return (strcmp (name, RISCV_FAKE_LABEL_NAME) != 0 |
1123 | && !riscv_elf_is_mapping_symbols (name)); | |
884b49e3 | 1124 | } |
3a337a86 AB |
1125 | \f |
1126 | ||
1127 | /* Indices into option argument vector for options accepting an argument. | |
1128 | Use RISCV_OPTION_ARG_NONE for options accepting no argument. */ | |
1129 | ||
1130 | typedef enum | |
1131 | { | |
1132 | RISCV_OPTION_ARG_NONE = -1, | |
1133 | RISCV_OPTION_ARG_PRIV_SPEC, | |
1134 | ||
1135 | RISCV_OPTION_ARG_COUNT | |
1136 | } riscv_option_arg_t; | |
1137 | ||
1138 | /* Valid RISCV disassembler options. */ | |
1139 | ||
1140 | static struct | |
1141 | { | |
1142 | const char *name; | |
1143 | const char *description; | |
1144 | riscv_option_arg_t arg; | |
1145 | } riscv_options[] = | |
1146 | { | |
1147 | { "numeric", | |
1148 | N_("Print numeric register names, rather than ABI names."), | |
1149 | RISCV_OPTION_ARG_NONE }, | |
1150 | { "no-aliases", | |
1151 | N_("Disassemble only into canonical instructions."), | |
1152 | RISCV_OPTION_ARG_NONE }, | |
1153 | { "priv-spec=", | |
1154 | N_("Print the CSR according to the chosen privilege spec."), | |
1155 | RISCV_OPTION_ARG_PRIV_SPEC } | |
1156 | }; | |
1157 | ||
1158 | /* Build the structure representing valid RISCV disassembler options. | |
1159 | This is done dynamically for maintenance ease purpose; a static | |
1160 | initializer would be unreadable. */ | |
1161 | ||
1162 | const disasm_options_and_args_t * | |
1163 | disassembler_options_riscv (void) | |
1164 | { | |
1165 | static disasm_options_and_args_t *opts_and_args; | |
1166 | ||
1167 | if (opts_and_args == NULL) | |
1168 | { | |
1169 | size_t num_options = ARRAY_SIZE (riscv_options); | |
1170 | size_t num_args = RISCV_OPTION_ARG_COUNT; | |
1171 | disasm_option_arg_t *args; | |
1172 | disasm_options_t *opts; | |
1173 | size_t i, priv_spec_count; | |
1174 | ||
1175 | args = XNEWVEC (disasm_option_arg_t, num_args + 1); | |
1176 | ||
1177 | args[RISCV_OPTION_ARG_PRIV_SPEC].name = "SPEC"; | |
1178 | priv_spec_count = PRIV_SPEC_CLASS_DRAFT - PRIV_SPEC_CLASS_NONE - 1; | |
1179 | args[RISCV_OPTION_ARG_PRIV_SPEC].values | |
1180 | = XNEWVEC (const char *, priv_spec_count + 1); | |
1181 | for (i = 0; i < priv_spec_count; i++) | |
1182 | args[RISCV_OPTION_ARG_PRIV_SPEC].values[i] | |
1183 | = riscv_priv_specs[i].name; | |
1184 | /* The array we return must be NULL terminated. */ | |
1185 | args[RISCV_OPTION_ARG_PRIV_SPEC].values[i] = NULL; | |
1186 | ||
1187 | /* The array we return must be NULL terminated. */ | |
1188 | args[num_args].name = NULL; | |
1189 | args[num_args].values = NULL; | |
1190 | ||
1191 | opts_and_args = XNEW (disasm_options_and_args_t); | |
1192 | opts_and_args->args = args; | |
1193 | ||
1194 | opts = &opts_and_args->options; | |
1195 | opts->name = XNEWVEC (const char *, num_options + 1); | |
1196 | opts->description = XNEWVEC (const char *, num_options + 1); | |
1197 | opts->arg = XNEWVEC (const disasm_option_arg_t *, num_options + 1); | |
1198 | for (i = 0; i < num_options; i++) | |
1199 | { | |
1200 | opts->name[i] = riscv_options[i].name; | |
1201 | opts->description[i] = _(riscv_options[i].description); | |
1202 | if (riscv_options[i].arg != RISCV_OPTION_ARG_NONE) | |
1203 | opts->arg[i] = &args[riscv_options[i].arg]; | |
1204 | else | |
1205 | opts->arg[i] = NULL; | |
1206 | } | |
1207 | /* The array we return must be NULL terminated. */ | |
1208 | opts->name[i] = NULL; | |
1209 | opts->description[i] = NULL; | |
1210 | opts->arg[i] = NULL; | |
1211 | } | |
1212 | ||
1213 | return opts_and_args; | |
1214 | } | |
884b49e3 | 1215 | |
e23eba97 NC |
1216 | void |
1217 | print_riscv_disassembler_options (FILE *stream) | |
1218 | { | |
3a337a86 AB |
1219 | const disasm_options_and_args_t *opts_and_args; |
1220 | const disasm_option_arg_t *args; | |
1221 | const disasm_options_t *opts; | |
1222 | size_t max_len = 0; | |
1223 | size_t i; | |
1224 | size_t j; | |
1225 | ||
1226 | opts_and_args = disassembler_options_riscv (); | |
1227 | opts = &opts_and_args->options; | |
1228 | args = opts_and_args->args; | |
1229 | ||
e23eba97 | 1230 | fprintf (stream, _("\n\ |
3a337a86 | 1231 | The following RISC-V specific disassembler options are supported for use\n\ |
e23eba97 | 1232 | with the -M switch (multiple options should be separated by commas):\n")); |
3a337a86 | 1233 | fprintf (stream, "\n"); |
e23eba97 | 1234 | |
3a337a86 AB |
1235 | /* Compute the length of the longest option name. */ |
1236 | for (i = 0; opts->name[i] != NULL; i++) | |
1237 | { | |
1238 | size_t len = strlen (opts->name[i]); | |
8f595e9b | 1239 | |
3a337a86 AB |
1240 | if (opts->arg[i] != NULL) |
1241 | len += strlen (opts->arg[i]->name); | |
1242 | if (max_len < len) | |
1243 | max_len = len; | |
1244 | } | |
e23eba97 | 1245 | |
3a337a86 AB |
1246 | for (i = 0, max_len++; opts->name[i] != NULL; i++) |
1247 | { | |
1248 | fprintf (stream, " %s", opts->name[i]); | |
1249 | if (opts->arg[i] != NULL) | |
1250 | fprintf (stream, "%s", opts->arg[i]->name); | |
1251 | if (opts->description[i] != NULL) | |
1252 | { | |
1253 | size_t len = strlen (opts->name[i]); | |
1254 | ||
1255 | if (opts->arg != NULL && opts->arg[i] != NULL) | |
1256 | len += strlen (opts->arg[i]->name); | |
1257 | fprintf (stream, "%*c %s", (int) (max_len - len), ' ', | |
1258 | opts->description[i]); | |
1259 | } | |
1260 | fprintf (stream, "\n"); | |
1261 | } | |
1262 | ||
1263 | for (i = 0; args[i].name != NULL; i++) | |
1264 | { | |
9869e2e5 TO |
1265 | if (args[i].values == NULL) |
1266 | continue; | |
3a337a86 AB |
1267 | fprintf (stream, _("\n\ |
1268 | For the options above, the following values are supported for \"%s\":\n "), | |
1269 | args[i].name); | |
1270 | for (j = 0; args[i].values[j] != NULL; j++) | |
1271 | fprintf (stream, " %s", args[i].values[j]); | |
1272 | fprintf (stream, _("\n")); | |
1273 | } | |
e23eba97 NC |
1274 | |
1275 | fprintf (stream, _("\n")); | |
1276 | } |