Commit | Line | Data |
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92df71f0 | 1 | /* Disassemble support for GDB. |
1bac305b | 2 | |
42a4f53d | 3 | Copyright (C) 2000-2019 Free Software Foundation, Inc. |
92df71f0 FN |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
92df71f0 FN |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
92df71f0 FN |
19 | |
20 | #include "defs.h" | |
d55e5aa6 TT |
21 | |
22 | /* Standard C++ includes. */ | |
23 | #include <algorithm> | |
24 | ||
25 | /* Local non-gdb includes. */ | |
65b48a81 | 26 | #include "arch-utils.h" |
d55e5aa6 TT |
27 | #include "common/gdb_optional.h" |
28 | #include "dis-asm.h" | |
92df71f0 | 29 | #include "disasm.h" |
65b48a81 | 30 | #include "gdbcmd.h" |
d55e5aa6 | 31 | #include "gdbcore.h" |
65b48a81 | 32 | #include "safe-ctype.h" |
d55e5aa6 TT |
33 | #include "source.h" |
34 | #include "target.h" | |
35 | #include "ui-out.h" | |
c7110220 | 36 | #include "valprint.h" |
d55e5aa6 | 37 | #include "value.h" |
92df71f0 FN |
38 | |
39 | /* Disassemble functions. | |
40 | FIXME: We should get rid of all the duplicate code in gdb that does | |
0963b4bd | 41 | the same thing: disassemble_command() and the gdbtk variation. */ |
92df71f0 | 42 | |
65b48a81 PB |
43 | /* This variable is used to hold the prospective disassembler_options value |
44 | which is set by the "set disassembler_options" command. */ | |
45 | static char *prospective_options = NULL; | |
46 | ||
6ff0ba5f DE |
47 | /* This structure is used to store line number information for the |
48 | deprecated /m option. | |
92df71f0 FN |
49 | We need a different sort of line table from the normal one cuz we can't |
50 | depend upon implicit line-end pc's for lines to do the | |
51 | reordering in this function. */ | |
52 | ||
6ff0ba5f | 53 | struct deprecated_dis_line_entry |
92df71f0 FN |
54 | { |
55 | int line; | |
56 | CORE_ADDR start_pc; | |
57 | CORE_ADDR end_pc; | |
58 | }; | |
59 | ||
6ff0ba5f DE |
60 | /* This Structure is used to store line number information. |
61 | We need a different sort of line table from the normal one cuz we can't | |
62 | depend upon implicit line-end pc's for lines to do the | |
63 | reordering in this function. */ | |
64 | ||
65 | struct dis_line_entry | |
66 | { | |
67 | struct symtab *symtab; | |
68 | int line; | |
69 | }; | |
70 | ||
71 | /* Hash function for dis_line_entry. */ | |
72 | ||
73 | static hashval_t | |
74 | hash_dis_line_entry (const void *item) | |
75 | { | |
9a3c8263 | 76 | const struct dis_line_entry *dle = (const struct dis_line_entry *) item; |
6ff0ba5f DE |
77 | |
78 | return htab_hash_pointer (dle->symtab) + dle->line; | |
79 | } | |
80 | ||
81 | /* Equal function for dis_line_entry. */ | |
82 | ||
83 | static int | |
84 | eq_dis_line_entry (const void *item_lhs, const void *item_rhs) | |
85 | { | |
9a3c8263 SM |
86 | const struct dis_line_entry *lhs = (const struct dis_line_entry *) item_lhs; |
87 | const struct dis_line_entry *rhs = (const struct dis_line_entry *) item_rhs; | |
6ff0ba5f DE |
88 | |
89 | return (lhs->symtab == rhs->symtab | |
90 | && lhs->line == rhs->line); | |
91 | } | |
92 | ||
93 | /* Create the table to manage lines for mixed source/disassembly. */ | |
94 | ||
95 | static htab_t | |
96 | allocate_dis_line_table (void) | |
97 | { | |
98 | return htab_create_alloc (41, | |
99 | hash_dis_line_entry, eq_dis_line_entry, | |
100 | xfree, xcalloc, xfree); | |
101 | } | |
102 | ||
4a099de2 | 103 | /* Add a new dis_line_entry containing SYMTAB and LINE to TABLE. */ |
6ff0ba5f DE |
104 | |
105 | static void | |
4a099de2 | 106 | add_dis_line_entry (htab_t table, struct symtab *symtab, int line) |
6ff0ba5f DE |
107 | { |
108 | void **slot; | |
109 | struct dis_line_entry dle, *dlep; | |
110 | ||
111 | dle.symtab = symtab; | |
112 | dle.line = line; | |
113 | slot = htab_find_slot (table, &dle, INSERT); | |
114 | if (*slot == NULL) | |
115 | { | |
116 | dlep = XNEW (struct dis_line_entry); | |
117 | dlep->symtab = symtab; | |
118 | dlep->line = line; | |
119 | *slot = dlep; | |
120 | } | |
121 | } | |
122 | ||
123 | /* Return non-zero if SYMTAB, LINE are in TABLE. */ | |
124 | ||
125 | static int | |
126 | line_has_code_p (htab_t table, struct symtab *symtab, int line) | |
127 | { | |
128 | struct dis_line_entry dle; | |
129 | ||
130 | dle.symtab = symtab; | |
131 | dle.line = line; | |
132 | return htab_find (table, &dle) != NULL; | |
133 | } | |
134 | ||
e47ad6c0 YQ |
135 | /* Wrapper of target_read_code. */ |
136 | ||
137 | int | |
138 | gdb_disassembler::dis_asm_read_memory (bfd_vma memaddr, gdb_byte *myaddr, | |
139 | unsigned int len, | |
140 | struct disassemble_info *info) | |
810ecf9f | 141 | { |
283f7163 | 142 | return target_read_code (memaddr, myaddr, len); |
810ecf9f AC |
143 | } |
144 | ||
e47ad6c0 YQ |
145 | /* Wrapper of memory_error. */ |
146 | ||
147 | void | |
148 | gdb_disassembler::dis_asm_memory_error (int err, bfd_vma memaddr, | |
149 | struct disassemble_info *info) | |
810ecf9f | 150 | { |
d8b49cf0 YQ |
151 | gdb_disassembler *self |
152 | = static_cast<gdb_disassembler *>(info->application_data); | |
153 | ||
154 | self->m_err_memaddr = memaddr; | |
810ecf9f AC |
155 | } |
156 | ||
e47ad6c0 YQ |
157 | /* Wrapper of print_address. */ |
158 | ||
159 | void | |
160 | gdb_disassembler::dis_asm_print_address (bfd_vma addr, | |
161 | struct disassemble_info *info) | |
810ecf9f | 162 | { |
e47ad6c0 YQ |
163 | gdb_disassembler *self |
164 | = static_cast<gdb_disassembler *>(info->application_data); | |
9a619af0 | 165 | |
e47ad6c0 | 166 | print_address (self->arch (), addr, self->stream ()); |
810ecf9f AC |
167 | } |
168 | ||
92df71f0 | 169 | static int |
bde58177 | 170 | compare_lines (const void *mle1p, const void *mle2p) |
92df71f0 | 171 | { |
6ff0ba5f | 172 | struct deprecated_dis_line_entry *mle1, *mle2; |
92df71f0 FN |
173 | int val; |
174 | ||
6ff0ba5f DE |
175 | mle1 = (struct deprecated_dis_line_entry *) mle1p; |
176 | mle2 = (struct deprecated_dis_line_entry *) mle2p; | |
92df71f0 | 177 | |
9011945e AB |
178 | /* End of sequence markers have a line number of 0 but don't want to |
179 | be sorted to the head of the list, instead sort by PC. */ | |
180 | if (mle1->line == 0 || mle2->line == 0) | |
181 | { | |
182 | val = mle1->start_pc - mle2->start_pc; | |
183 | if (val == 0) | |
184 | val = mle1->line - mle2->line; | |
185 | } | |
186 | else | |
187 | { | |
188 | val = mle1->line - mle2->line; | |
189 | if (val == 0) | |
190 | val = mle1->start_pc - mle2->start_pc; | |
191 | } | |
192 | return val; | |
92df71f0 FN |
193 | } |
194 | ||
a50a4026 | 195 | /* See disasm.h. */ |
af70908d | 196 | |
a50a4026 | 197 | int |
8b172ce7 PA |
198 | gdb_pretty_print_disassembler::pretty_print_insn (struct ui_out *uiout, |
199 | const struct disasm_insn *insn, | |
9a24775b | 200 | gdb_disassembly_flags flags) |
92df71f0 | 201 | { |
92df71f0 FN |
202 | /* parts of the symbolic representation of the address */ |
203 | int unmapped; | |
92df71f0 FN |
204 | int offset; |
205 | int line; | |
af70908d | 206 | int size; |
a50a4026 | 207 | CORE_ADDR pc; |
8b172ce7 | 208 | struct gdbarch *gdbarch = arch (); |
af70908d | 209 | |
393702cd TT |
210 | { |
211 | ui_out_emit_tuple tuple_emitter (uiout, NULL); | |
212 | pc = insn->addr; | |
213 | ||
214 | if (insn->number != 0) | |
215 | { | |
216 | uiout->field_fmt ("insn-number", "%u", insn->number); | |
217 | uiout->text ("\t"); | |
218 | } | |
219 | ||
220 | if ((flags & DISASSEMBLY_SPECULATIVE) != 0) | |
221 | { | |
222 | if (insn->is_speculative) | |
223 | { | |
224 | uiout->field_string ("is-speculative", "?"); | |
225 | ||
226 | /* The speculative execution indication overwrites the first | |
227 | character of the PC prefix. | |
228 | We assume a PC prefix length of 3 characters. */ | |
229 | if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
230 | uiout->text (pc_prefix (pc) + 1); | |
231 | else | |
232 | uiout->text (" "); | |
233 | } | |
234 | else if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
235 | uiout->text (pc_prefix (pc)); | |
236 | else | |
237 | uiout->text (" "); | |
238 | } | |
239 | else if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
240 | uiout->text (pc_prefix (pc)); | |
241 | uiout->field_core_addr ("address", gdbarch, pc); | |
242 | ||
c7110220 | 243 | std::string name, filename; |
393702cd TT |
244 | if (!build_address_symbolic (gdbarch, pc, 0, &name, &offset, &filename, |
245 | &line, &unmapped)) | |
246 | { | |
247 | /* We don't care now about line, filename and unmapped. But we might in | |
248 | the future. */ | |
249 | uiout->text (" <"); | |
250 | if ((flags & DISASSEMBLY_OMIT_FNAME) == 0) | |
cbe56571 TT |
251 | uiout->field_string ("func-name", name.c_str (), |
252 | ui_out_style_kind::FUNCTION); | |
393702cd TT |
253 | uiout->text ("+"); |
254 | uiout->field_int ("offset", offset); | |
255 | uiout->text (">:\t"); | |
256 | } | |
257 | else | |
258 | uiout->text (":\t"); | |
259 | ||
393702cd TT |
260 | m_insn_stb.clear (); |
261 | ||
262 | if (flags & DISASSEMBLY_RAW_INSN) | |
263 | { | |
264 | CORE_ADDR end_pc; | |
265 | bfd_byte data; | |
393702cd TT |
266 | const char *spacer = ""; |
267 | ||
268 | /* Build the opcodes using a temporary stream so we can | |
269 | write them out in a single go for the MI. */ | |
270 | m_opcode_stb.clear (); | |
271 | ||
272 | size = m_di.print_insn (pc); | |
273 | end_pc = pc + size; | |
274 | ||
275 | for (;pc < end_pc; ++pc) | |
276 | { | |
277 | read_code (pc, &data, 1); | |
278 | m_opcode_stb.printf ("%s%02x", spacer, (unsigned) data); | |
279 | spacer = " "; | |
280 | } | |
281 | ||
282 | uiout->field_stream ("opcodes", m_opcode_stb); | |
283 | uiout->text ("\t"); | |
284 | } | |
285 | else | |
8b172ce7 | 286 | size = m_di.print_insn (pc); |
af70908d | 287 | |
393702cd TT |
288 | uiout->field_stream ("inst", m_insn_stb); |
289 | } | |
112e8700 | 290 | uiout->text ("\n"); |
af70908d MM |
291 | |
292 | return size; | |
293 | } | |
294 | ||
295 | static int | |
187808b0 PA |
296 | dump_insns (struct gdbarch *gdbarch, |
297 | struct ui_out *uiout, CORE_ADDR low, CORE_ADDR high, | |
9a24775b | 298 | int how_many, gdb_disassembly_flags flags, CORE_ADDR *end_pc) |
af70908d | 299 | { |
a50a4026 | 300 | struct disasm_insn insn; |
af70908d MM |
301 | int num_displayed = 0; |
302 | ||
a50a4026 MM |
303 | memset (&insn, 0, sizeof (insn)); |
304 | insn.addr = low; | |
305 | ||
8b172ce7 PA |
306 | gdb_pretty_print_disassembler disasm (gdbarch); |
307 | ||
a50a4026 | 308 | while (insn.addr < high && (how_many < 0 || num_displayed < how_many)) |
af70908d MM |
309 | { |
310 | int size; | |
311 | ||
8b172ce7 | 312 | size = disasm.pretty_print_insn (uiout, &insn, flags); |
af70908d MM |
313 | if (size <= 0) |
314 | break; | |
315 | ||
316 | ++num_displayed; | |
a50a4026 | 317 | insn.addr += size; |
af70908d MM |
318 | |
319 | /* Allow user to bail out with ^C. */ | |
320 | QUIT; | |
92df71f0 | 321 | } |
6ff0ba5f DE |
322 | |
323 | if (end_pc != NULL) | |
a50a4026 | 324 | *end_pc = insn.addr; |
af70908d | 325 | |
92df71f0 FN |
326 | return num_displayed; |
327 | } | |
328 | ||
329 | /* The idea here is to present a source-O-centric view of a | |
330 | function to the user. This means that things are presented | |
331 | in source order, with (possibly) out of order assembly | |
6ff0ba5f DE |
332 | immediately following. |
333 | ||
334 | N.B. This view is deprecated. */ | |
0963b4bd | 335 | |
92df71f0 | 336 | static void |
6ff0ba5f | 337 | do_mixed_source_and_assembly_deprecated |
187808b0 PA |
338 | (struct gdbarch *gdbarch, struct ui_out *uiout, |
339 | struct symtab *symtab, | |
6ff0ba5f | 340 | CORE_ADDR low, CORE_ADDR high, |
9a24775b | 341 | int how_many, gdb_disassembly_flags flags) |
92df71f0 FN |
342 | { |
343 | int newlines = 0; | |
6ff0ba5f DE |
344 | int nlines; |
345 | struct linetable_entry *le; | |
346 | struct deprecated_dis_line_entry *mle; | |
92df71f0 FN |
347 | struct symtab_and_line sal; |
348 | int i; | |
349 | int out_of_order = 0; | |
350 | int next_line = 0; | |
92df71f0 | 351 | int num_displayed = 0; |
8d297bbf | 352 | print_source_lines_flags psl_flags = 0; |
92df71f0 | 353 | |
6ff0ba5f DE |
354 | gdb_assert (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL); |
355 | ||
356 | nlines = SYMTAB_LINETABLE (symtab)->nitems; | |
357 | le = SYMTAB_LINETABLE (symtab)->item; | |
358 | ||
4cd29721 MM |
359 | if (flags & DISASSEMBLY_FILENAME) |
360 | psl_flags |= PRINT_SOURCE_LINES_FILENAME; | |
361 | ||
6ff0ba5f DE |
362 | mle = (struct deprecated_dis_line_entry *) |
363 | alloca (nlines * sizeof (struct deprecated_dis_line_entry)); | |
92df71f0 FN |
364 | |
365 | /* Copy linetable entries for this function into our data | |
366 | structure, creating end_pc's and setting out_of_order as | |
367 | appropriate. */ | |
368 | ||
369 | /* First, skip all the preceding functions. */ | |
370 | ||
371 | for (i = 0; i < nlines - 1 && le[i].pc < low; i++); | |
372 | ||
373 | /* Now, copy all entries before the end of this function. */ | |
374 | ||
375 | for (; i < nlines - 1 && le[i].pc < high; i++) | |
376 | { | |
377 | if (le[i].line == le[i + 1].line && le[i].pc == le[i + 1].pc) | |
0963b4bd | 378 | continue; /* Ignore duplicates. */ |
92df71f0 FN |
379 | |
380 | /* Skip any end-of-function markers. */ | |
381 | if (le[i].line == 0) | |
382 | continue; | |
383 | ||
384 | mle[newlines].line = le[i].line; | |
385 | if (le[i].line > le[i + 1].line) | |
386 | out_of_order = 1; | |
387 | mle[newlines].start_pc = le[i].pc; | |
388 | mle[newlines].end_pc = le[i + 1].pc; | |
389 | newlines++; | |
390 | } | |
391 | ||
392 | /* If we're on the last line, and it's part of the function, | |
393 | then we need to get the end pc in a special way. */ | |
394 | ||
395 | if (i == nlines - 1 && le[i].pc < high) | |
396 | { | |
397 | mle[newlines].line = le[i].line; | |
398 | mle[newlines].start_pc = le[i].pc; | |
399 | sal = find_pc_line (le[i].pc, 0); | |
400 | mle[newlines].end_pc = sal.end; | |
401 | newlines++; | |
402 | } | |
403 | ||
6ff0ba5f | 404 | /* Now, sort mle by line #s (and, then by addresses within lines). */ |
92df71f0 FN |
405 | |
406 | if (out_of_order) | |
6ff0ba5f DE |
407 | qsort (mle, newlines, sizeof (struct deprecated_dis_line_entry), |
408 | compare_lines); | |
92df71f0 FN |
409 | |
410 | /* Now, for each line entry, emit the specified lines (unless | |
411 | they have been emitted before), followed by the assembly code | |
412 | for that line. */ | |
413 | ||
30f0b101 TT |
414 | ui_out_emit_list asm_insns_list (uiout, "asm_insns"); |
415 | ||
416 | gdb::optional<ui_out_emit_tuple> outer_tuple_emitter; | |
417 | gdb::optional<ui_out_emit_list> inner_list_emitter; | |
92df71f0 FN |
418 | |
419 | for (i = 0; i < newlines; i++) | |
420 | { | |
92df71f0 FN |
421 | /* Print out everything from next_line to the current line. */ |
422 | if (mle[i].line >= next_line) | |
423 | { | |
424 | if (next_line != 0) | |
425 | { | |
0963b4bd | 426 | /* Just one line to print. */ |
92df71f0 FN |
427 | if (next_line == mle[i].line) |
428 | { | |
30f0b101 | 429 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 430 | print_source_lines (symtab, next_line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
431 | } |
432 | else | |
433 | { | |
0963b4bd | 434 | /* Several source lines w/o asm instructions associated. */ |
92df71f0 FN |
435 | for (; next_line < mle[i].line; next_line++) |
436 | { | |
2e783024 TT |
437 | ui_out_emit_tuple tuple_emitter (uiout, |
438 | "src_and_asm_line"); | |
92df71f0 | 439 | print_source_lines (symtab, next_line, next_line + 1, |
4cd29721 | 440 | psl_flags); |
b926417a TT |
441 | ui_out_emit_list temp_list_emitter (uiout, |
442 | "line_asm_insn"); | |
92df71f0 FN |
443 | } |
444 | /* Print the last line and leave list open for | |
0963b4bd | 445 | asm instructions to be added. */ |
30f0b101 | 446 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 447 | print_source_lines (symtab, next_line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
448 | } |
449 | } | |
450 | else | |
451 | { | |
30f0b101 | 452 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 453 | print_source_lines (symtab, mle[i].line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
454 | } |
455 | ||
456 | next_line = mle[i].line + 1; | |
30f0b101 | 457 | inner_list_emitter.emplace (uiout, "line_asm_insn"); |
92df71f0 FN |
458 | } |
459 | ||
187808b0 | 460 | num_displayed += dump_insns (gdbarch, uiout, |
13274fc3 | 461 | mle[i].start_pc, mle[i].end_pc, |
e47ad6c0 | 462 | how_many, flags, NULL); |
0127c0d3 JJ |
463 | |
464 | /* When we've reached the end of the mle array, or we've seen the last | |
465 | assembly range for this source line, close out the list/tuple. */ | |
466 | if (i == (newlines - 1) || mle[i + 1].line > mle[i].line) | |
92df71f0 | 467 | { |
30f0b101 TT |
468 | inner_list_emitter.reset (); |
469 | outer_tuple_emitter.reset (); | |
112e8700 | 470 | uiout->text ("\n"); |
92df71f0 | 471 | } |
0127c0d3 JJ |
472 | if (how_many >= 0 && num_displayed >= how_many) |
473 | break; | |
92df71f0 | 474 | } |
92df71f0 FN |
475 | } |
476 | ||
6ff0ba5f DE |
477 | /* The idea here is to present a source-O-centric view of a |
478 | function to the user. This means that things are presented | |
479 | in source order, with (possibly) out of order assembly | |
480 | immediately following. */ | |
481 | ||
482 | static void | |
e47ad6c0 YQ |
483 | do_mixed_source_and_assembly (struct gdbarch *gdbarch, |
484 | struct ui_out *uiout, | |
6ff0ba5f DE |
485 | struct symtab *main_symtab, |
486 | CORE_ADDR low, CORE_ADDR high, | |
9a24775b | 487 | int how_many, gdb_disassembly_flags flags) |
6ff0ba5f | 488 | { |
6ff0ba5f | 489 | const struct linetable_entry *le, *first_le; |
6ff0ba5f | 490 | int i, nlines; |
6ff0ba5f | 491 | int num_displayed = 0; |
8d297bbf | 492 | print_source_lines_flags psl_flags = 0; |
6ff0ba5f DE |
493 | CORE_ADDR pc; |
494 | struct symtab *last_symtab; | |
495 | int last_line; | |
6ff0ba5f DE |
496 | |
497 | gdb_assert (main_symtab != NULL && SYMTAB_LINETABLE (main_symtab) != NULL); | |
498 | ||
499 | /* First pass: collect the list of all source files and lines. | |
500 | We do this so that we can only print lines containing code once. | |
501 | We try to print the source text leading up to the next instruction, | |
502 | but if that text is for code that will be disassembled later, then | |
503 | we'll want to defer printing it until later with its associated code. */ | |
504 | ||
fc4007c9 | 505 | htab_up dis_line_table (allocate_dis_line_table ()); |
6ff0ba5f DE |
506 | |
507 | pc = low; | |
508 | ||
509 | /* The prologue may be empty, but there may still be a line number entry | |
510 | for the opening brace which is distinct from the first line of code. | |
511 | If the prologue has been eliminated find_pc_line may return the source | |
512 | line after the opening brace. We still want to print this opening brace. | |
513 | first_le is used to implement this. */ | |
514 | ||
515 | nlines = SYMTAB_LINETABLE (main_symtab)->nitems; | |
516 | le = SYMTAB_LINETABLE (main_symtab)->item; | |
517 | first_le = NULL; | |
518 | ||
519 | /* Skip all the preceding functions. */ | |
520 | for (i = 0; i < nlines && le[i].pc < low; i++) | |
521 | continue; | |
522 | ||
523 | if (i < nlines && le[i].pc < high) | |
524 | first_le = &le[i]; | |
525 | ||
526 | /* Add lines for every pc value. */ | |
527 | while (pc < high) | |
528 | { | |
529 | struct symtab_and_line sal; | |
530 | int length; | |
531 | ||
532 | sal = find_pc_line (pc, 0); | |
533 | length = gdb_insn_length (gdbarch, pc); | |
534 | pc += length; | |
535 | ||
536 | if (sal.symtab != NULL) | |
fc4007c9 | 537 | add_dis_line_entry (dis_line_table.get (), sal.symtab, sal.line); |
6ff0ba5f DE |
538 | } |
539 | ||
540 | /* Second pass: print the disassembly. | |
541 | ||
542 | Output format, from an MI perspective: | |
543 | The result is a ui_out list, field name "asm_insns", where elements have | |
544 | name "src_and_asm_line". | |
545 | Each element is a tuple of source line specs (field names line, file, | |
546 | fullname), and field "line_asm_insn" which contains the disassembly. | |
547 | Field "line_asm_insn" is a list of tuples: address, func-name, offset, | |
548 | opcodes, inst. | |
549 | ||
550 | CLI output works on top of this because MI ignores ui_out_text output, | |
551 | which is where we put file name and source line contents output. | |
552 | ||
30f0b101 TT |
553 | Emitter usage: |
554 | asm_insns_emitter | |
6ff0ba5f | 555 | Handles the outer "asm_insns" list. |
30f0b101 | 556 | tuple_emitter |
6ff0ba5f | 557 | The tuples for each group of consecutive disassemblies. |
30f0b101 | 558 | list_emitter |
6ff0ba5f DE |
559 | List of consecutive source lines or disassembled insns. */ |
560 | ||
561 | if (flags & DISASSEMBLY_FILENAME) | |
562 | psl_flags |= PRINT_SOURCE_LINES_FILENAME; | |
563 | ||
30f0b101 | 564 | ui_out_emit_list asm_insns_emitter (uiout, "asm_insns"); |
6ff0ba5f | 565 | |
30f0b101 TT |
566 | gdb::optional<ui_out_emit_tuple> tuple_emitter; |
567 | gdb::optional<ui_out_emit_list> list_emitter; | |
6ff0ba5f DE |
568 | |
569 | last_symtab = NULL; | |
570 | last_line = 0; | |
571 | pc = low; | |
572 | ||
573 | while (pc < high) | |
574 | { | |
6ff0ba5f DE |
575 | struct symtab_and_line sal; |
576 | CORE_ADDR end_pc; | |
577 | int start_preceding_line_to_display = 0; | |
578 | int end_preceding_line_to_display = 0; | |
579 | int new_source_line = 0; | |
580 | ||
581 | sal = find_pc_line (pc, 0); | |
582 | ||
583 | if (sal.symtab != last_symtab) | |
584 | { | |
585 | /* New source file. */ | |
586 | new_source_line = 1; | |
587 | ||
588 | /* If this is the first line of output, check for any preceding | |
589 | lines. */ | |
590 | if (last_line == 0 | |
591 | && first_le != NULL | |
592 | && first_le->line < sal.line) | |
593 | { | |
594 | start_preceding_line_to_display = first_le->line; | |
595 | end_preceding_line_to_display = sal.line; | |
596 | } | |
597 | } | |
598 | else | |
599 | { | |
600 | /* Same source file as last time. */ | |
601 | if (sal.symtab != NULL) | |
602 | { | |
603 | if (sal.line > last_line + 1 && last_line != 0) | |
604 | { | |
605 | int l; | |
606 | ||
607 | /* Several preceding source lines. Print the trailing ones | |
608 | not associated with code that we'll print later. */ | |
609 | for (l = sal.line - 1; l > last_line; --l) | |
610 | { | |
fc4007c9 TT |
611 | if (line_has_code_p (dis_line_table.get (), |
612 | sal.symtab, l)) | |
6ff0ba5f DE |
613 | break; |
614 | } | |
615 | if (l < sal.line - 1) | |
616 | { | |
617 | start_preceding_line_to_display = l + 1; | |
618 | end_preceding_line_to_display = sal.line; | |
619 | } | |
620 | } | |
621 | if (sal.line != last_line) | |
622 | new_source_line = 1; | |
623 | else | |
624 | { | |
625 | /* Same source line as last time. This can happen, depending | |
626 | on the debug info. */ | |
627 | } | |
628 | } | |
629 | } | |
630 | ||
631 | if (new_source_line) | |
632 | { | |
633 | /* Skip the newline if this is the first instruction. */ | |
634 | if (pc > low) | |
112e8700 | 635 | uiout->text ("\n"); |
30f0b101 | 636 | if (tuple_emitter.has_value ()) |
6ff0ba5f | 637 | { |
30f0b101 TT |
638 | gdb_assert (list_emitter.has_value ()); |
639 | list_emitter.reset (); | |
640 | tuple_emitter.reset (); | |
6ff0ba5f DE |
641 | } |
642 | if (sal.symtab != last_symtab | |
643 | && !(flags & DISASSEMBLY_FILENAME)) | |
644 | { | |
645 | /* Remember MI ignores ui_out_text. | |
646 | We don't have to do anything here for MI because MI | |
647 | output includes the source specs for each line. */ | |
648 | if (sal.symtab != NULL) | |
649 | { | |
112e8700 | 650 | uiout->text (symtab_to_filename_for_display (sal.symtab)); |
6ff0ba5f DE |
651 | } |
652 | else | |
112e8700 SM |
653 | uiout->text ("unknown"); |
654 | uiout->text (":\n"); | |
6ff0ba5f DE |
655 | } |
656 | if (start_preceding_line_to_display > 0) | |
657 | { | |
658 | /* Several source lines w/o asm instructions associated. | |
659 | We need to preserve the structure of the output, so output | |
660 | a bunch of line tuples with no asm entries. */ | |
661 | int l; | |
6ff0ba5f DE |
662 | |
663 | gdb_assert (sal.symtab != NULL); | |
664 | for (l = start_preceding_line_to_display; | |
665 | l < end_preceding_line_to_display; | |
666 | ++l) | |
667 | { | |
b926417a TT |
668 | ui_out_emit_tuple line_tuple_emitter (uiout, |
669 | "src_and_asm_line"); | |
6ff0ba5f | 670 | print_source_lines (sal.symtab, l, l + 1, psl_flags); |
30f0b101 | 671 | ui_out_emit_list chain_line_emitter (uiout, "line_asm_insn"); |
6ff0ba5f DE |
672 | } |
673 | } | |
30f0b101 | 674 | tuple_emitter.emplace (uiout, "src_and_asm_line"); |
6ff0ba5f DE |
675 | if (sal.symtab != NULL) |
676 | print_source_lines (sal.symtab, sal.line, sal.line + 1, psl_flags); | |
677 | else | |
112e8700 | 678 | uiout->text (_("--- no source info for this pc ---\n")); |
30f0b101 | 679 | list_emitter.emplace (uiout, "line_asm_insn"); |
6ff0ba5f DE |
680 | } |
681 | else | |
682 | { | |
683 | /* Here we're appending instructions to an existing line. | |
684 | By construction the very first insn will have a symtab | |
685 | and follow the new_source_line path above. */ | |
30f0b101 TT |
686 | gdb_assert (tuple_emitter.has_value ()); |
687 | gdb_assert (list_emitter.has_value ()); | |
6ff0ba5f DE |
688 | } |
689 | ||
690 | if (sal.end != 0) | |
325fac50 | 691 | end_pc = std::min (sal.end, high); |
6ff0ba5f DE |
692 | else |
693 | end_pc = pc + 1; | |
187808b0 | 694 | num_displayed += dump_insns (gdbarch, uiout, pc, end_pc, |
e47ad6c0 | 695 | how_many, flags, &end_pc); |
6ff0ba5f DE |
696 | pc = end_pc; |
697 | ||
698 | if (how_many >= 0 && num_displayed >= how_many) | |
699 | break; | |
700 | ||
701 | last_symtab = sal.symtab; | |
702 | last_line = sal.line; | |
703 | } | |
6ff0ba5f | 704 | } |
92df71f0 FN |
705 | |
706 | static void | |
187808b0 | 707 | do_assembly_only (struct gdbarch *gdbarch, struct ui_out *uiout, |
92df71f0 | 708 | CORE_ADDR low, CORE_ADDR high, |
9a24775b | 709 | int how_many, gdb_disassembly_flags flags) |
92df71f0 | 710 | { |
10f489e5 | 711 | ui_out_emit_list list_emitter (uiout, "asm_insns"); |
92df71f0 | 712 | |
187808b0 | 713 | dump_insns (gdbarch, uiout, low, high, how_many, flags, NULL); |
92df71f0 FN |
714 | } |
715 | ||
92bf2b80 AC |
716 | /* Initialize the disassemble info struct ready for the specified |
717 | stream. */ | |
718 | ||
a0b31db1 | 719 | static int ATTRIBUTE_PRINTF (2, 3) |
242e8be5 AC |
720 | fprintf_disasm (void *stream, const char *format, ...) |
721 | { | |
722 | va_list args; | |
9a619af0 | 723 | |
242e8be5 | 724 | va_start (args, format); |
9a3c8263 | 725 | vfprintf_filtered ((struct ui_file *) stream, format, args); |
242e8be5 AC |
726 | va_end (args); |
727 | /* Something non -ve. */ | |
728 | return 0; | |
729 | } | |
730 | ||
471b9d15 MR |
731 | /* Combine implicit and user disassembler options and return them |
732 | in a newly-created string. */ | |
733 | ||
734 | static std::string | |
735 | get_all_disassembler_options (struct gdbarch *gdbarch) | |
736 | { | |
737 | const char *implicit = gdbarch_disassembler_options_implicit (gdbarch); | |
738 | const char *options = get_disassembler_options (gdbarch); | |
739 | const char *comma = ","; | |
740 | ||
741 | if (implicit == nullptr) | |
742 | { | |
743 | implicit = ""; | |
744 | comma = ""; | |
745 | } | |
746 | ||
747 | if (options == nullptr) | |
748 | { | |
749 | options = ""; | |
750 | comma = ""; | |
751 | } | |
752 | ||
753 | return string_printf ("%s%s%s", implicit, comma, options); | |
754 | } | |
755 | ||
e47ad6c0 YQ |
756 | gdb_disassembler::gdb_disassembler (struct gdbarch *gdbarch, |
757 | struct ui_file *file, | |
758 | di_read_memory_ftype read_memory_func) | |
d8b49cf0 YQ |
759 | : m_gdbarch (gdbarch), |
760 | m_err_memaddr (0) | |
92df71f0 | 761 | { |
e47ad6c0 YQ |
762 | init_disassemble_info (&m_di, file, fprintf_disasm); |
763 | m_di.flavour = bfd_target_unknown_flavour; | |
764 | m_di.memory_error_func = dis_asm_memory_error; | |
765 | m_di.print_address_func = dis_asm_print_address; | |
2b6fd0d8 AC |
766 | /* NOTE: cagney/2003-04-28: The original code, from the old Insight |
767 | disassembler had a local optomization here. By default it would | |
768 | access the executable file, instead of the target memory (there | |
ce2826aa | 769 | was a growing list of exceptions though). Unfortunately, the |
2b6fd0d8 AC |
770 | heuristic was flawed. Commands like "disassemble &variable" |
771 | didn't work as they relied on the access going to the target. | |
772 | Further, it has been supperseeded by trust-read-only-sections | |
773 | (although that should be superseeded by target_trust..._p()). */ | |
e47ad6c0 YQ |
774 | m_di.read_memory_func = read_memory_func; |
775 | m_di.arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
776 | m_di.mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
777 | m_di.endian = gdbarch_byte_order (gdbarch); | |
778 | m_di.endian_code = gdbarch_byte_order_for_code (gdbarch); | |
779 | m_di.application_data = this; | |
471b9d15 MR |
780 | m_disassembler_options_holder = get_all_disassembler_options (gdbarch); |
781 | if (!m_disassembler_options_holder.empty ()) | |
782 | m_di.disassembler_options = m_disassembler_options_holder.c_str (); | |
e47ad6c0 YQ |
783 | disassemble_init_for_target (&m_di); |
784 | } | |
785 | ||
786 | int | |
787 | gdb_disassembler::print_insn (CORE_ADDR memaddr, | |
788 | int *branch_delay_insns) | |
789 | { | |
d8b49cf0 YQ |
790 | m_err_memaddr = 0; |
791 | ||
e47ad6c0 YQ |
792 | int length = gdbarch_print_insn (arch (), memaddr, &m_di); |
793 | ||
d8b49cf0 YQ |
794 | if (length < 0) |
795 | memory_error (TARGET_XFER_E_IO, m_err_memaddr); | |
796 | ||
e47ad6c0 YQ |
797 | if (branch_delay_insns != NULL) |
798 | { | |
799 | if (m_di.insn_info_valid) | |
800 | *branch_delay_insns = m_di.branch_delay_insns; | |
801 | else | |
802 | *branch_delay_insns = 0; | |
803 | } | |
804 | return length; | |
92bf2b80 AC |
805 | } |
806 | ||
807 | void | |
13274fc3 | 808 | gdb_disassembly (struct gdbarch *gdbarch, struct ui_out *uiout, |
9a24775b | 809 | gdb_disassembly_flags flags, int how_many, |
9c419145 | 810 | CORE_ADDR low, CORE_ADDR high) |
92bf2b80 | 811 | { |
34248c3a | 812 | struct symtab *symtab; |
92bf2b80 | 813 | int nlines = -1; |
92df71f0 | 814 | |
0963b4bd | 815 | /* Assume symtab is valid for whole PC range. */ |
34248c3a | 816 | symtab = find_pc_line_symtab (low); |
92df71f0 | 817 | |
8435453b | 818 | if (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL) |
6ff0ba5f | 819 | nlines = SYMTAB_LINETABLE (symtab)->nitems; |
92df71f0 | 820 | |
6ff0ba5f DE |
821 | if (!(flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
822 | || nlines <= 0) | |
187808b0 | 823 | do_assembly_only (gdbarch, uiout, low, high, how_many, flags); |
92df71f0 | 824 | |
e6158f16 | 825 | else if (flags & DISASSEMBLY_SOURCE) |
187808b0 | 826 | do_mixed_source_and_assembly (gdbarch, uiout, symtab, low, high, |
e47ad6c0 | 827 | how_many, flags); |
6ff0ba5f DE |
828 | |
829 | else if (flags & DISASSEMBLY_SOURCE_DEPRECATED) | |
187808b0 | 830 | do_mixed_source_and_assembly_deprecated (gdbarch, uiout, symtab, |
e47ad6c0 | 831 | low, high, how_many, flags); |
92df71f0 FN |
832 | |
833 | gdb_flush (gdb_stdout); | |
834 | } | |
810ecf9f | 835 | |
92bf2b80 | 836 | /* Print the instruction at address MEMADDR in debugged memory, |
a4642986 MR |
837 | on STREAM. Returns the length of the instruction, in bytes, |
838 | and, if requested, the number of branch delay slot instructions. */ | |
92bf2b80 AC |
839 | |
840 | int | |
13274fc3 UW |
841 | gdb_print_insn (struct gdbarch *gdbarch, CORE_ADDR memaddr, |
842 | struct ui_file *stream, int *branch_delay_insns) | |
92bf2b80 | 843 | { |
a4642986 | 844 | |
e47ad6c0 YQ |
845 | gdb_disassembler di (gdbarch, stream); |
846 | ||
847 | return di.print_insn (memaddr, branch_delay_insns); | |
92bf2b80 | 848 | } |
eda5a4d7 | 849 | |
eda5a4d7 PA |
850 | /* Return the length in bytes of the instruction at address MEMADDR in |
851 | debugged memory. */ | |
852 | ||
853 | int | |
854 | gdb_insn_length (struct gdbarch *gdbarch, CORE_ADDR addr) | |
855 | { | |
d7e74731 | 856 | return gdb_print_insn (gdbarch, addr, &null_stream, NULL); |
eda5a4d7 PA |
857 | } |
858 | ||
859 | /* fprintf-function for gdb_buffered_insn_length. This function is a | |
860 | nop, we don't want to print anything, we just want to compute the | |
861 | length of the insn. */ | |
862 | ||
863 | static int ATTRIBUTE_PRINTF (2, 3) | |
864 | gdb_buffered_insn_length_fprintf (void *stream, const char *format, ...) | |
865 | { | |
866 | return 0; | |
867 | } | |
868 | ||
471b9d15 MR |
869 | /* Initialize a struct disassemble_info for gdb_buffered_insn_length. |
870 | Upon return, *DISASSEMBLER_OPTIONS_HOLDER owns the string pointed | |
871 | to by DI.DISASSEMBLER_OPTIONS. */ | |
eda5a4d7 PA |
872 | |
873 | static void | |
874 | gdb_buffered_insn_length_init_dis (struct gdbarch *gdbarch, | |
875 | struct disassemble_info *di, | |
876 | const gdb_byte *insn, int max_len, | |
471b9d15 MR |
877 | CORE_ADDR addr, |
878 | std::string *disassembler_options_holder) | |
eda5a4d7 PA |
879 | { |
880 | init_disassemble_info (di, NULL, gdb_buffered_insn_length_fprintf); | |
881 | ||
882 | /* init_disassemble_info installs buffer_read_memory, etc. | |
883 | so we don't need to do that here. | |
884 | The cast is necessary until disassemble_info is const-ified. */ | |
885 | di->buffer = (gdb_byte *) insn; | |
886 | di->buffer_length = max_len; | |
887 | di->buffer_vma = addr; | |
888 | ||
889 | di->arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
890 | di->mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
891 | di->endian = gdbarch_byte_order (gdbarch); | |
892 | di->endian_code = gdbarch_byte_order_for_code (gdbarch); | |
893 | ||
471b9d15 MR |
894 | *disassembler_options_holder = get_all_disassembler_options (gdbarch); |
895 | if (!disassembler_options_holder->empty ()) | |
896 | di->disassembler_options = disassembler_options_holder->c_str (); | |
eda5a4d7 PA |
897 | disassemble_init_for_target (di); |
898 | } | |
899 | ||
900 | /* Return the length in bytes of INSN. MAX_LEN is the size of the | |
901 | buffer containing INSN. */ | |
902 | ||
903 | int | |
904 | gdb_buffered_insn_length (struct gdbarch *gdbarch, | |
905 | const gdb_byte *insn, int max_len, CORE_ADDR addr) | |
906 | { | |
907 | struct disassemble_info di; | |
471b9d15 | 908 | std::string disassembler_options_holder; |
eda5a4d7 | 909 | |
471b9d15 MR |
910 | gdb_buffered_insn_length_init_dis (gdbarch, &di, insn, max_len, addr, |
911 | &disassembler_options_holder); | |
eda5a4d7 PA |
912 | |
913 | return gdbarch_print_insn (gdbarch, addr, &di); | |
914 | } | |
65b48a81 PB |
915 | |
916 | char * | |
917 | get_disassembler_options (struct gdbarch *gdbarch) | |
918 | { | |
919 | char **disassembler_options = gdbarch_disassembler_options (gdbarch); | |
920 | if (disassembler_options == NULL) | |
921 | return NULL; | |
922 | return *disassembler_options; | |
923 | } | |
924 | ||
925 | void | |
926 | set_disassembler_options (char *prospective_options) | |
927 | { | |
928 | struct gdbarch *gdbarch = get_current_arch (); | |
929 | char **disassembler_options = gdbarch_disassembler_options (gdbarch); | |
471b9d15 | 930 | const disasm_options_and_args_t *valid_options_and_args; |
65b48a81 PB |
931 | const disasm_options_t *valid_options; |
932 | char *options = remove_whitespace_and_extra_commas (prospective_options); | |
f995bbe8 | 933 | const char *opt; |
65b48a81 PB |
934 | |
935 | /* Allow all architectures, even ones that do not support 'set disassembler', | |
936 | to reset their disassembler options to NULL. */ | |
937 | if (options == NULL) | |
938 | { | |
939 | if (disassembler_options != NULL) | |
940 | { | |
941 | free (*disassembler_options); | |
942 | *disassembler_options = NULL; | |
943 | } | |
944 | return; | |
945 | } | |
946 | ||
471b9d15 MR |
947 | valid_options_and_args = gdbarch_valid_disassembler_options (gdbarch); |
948 | if (valid_options_and_args == NULL) | |
65b48a81 PB |
949 | { |
950 | fprintf_filtered (gdb_stdlog, _("\ | |
951 | 'set disassembler-options ...' is not supported on this architecture.\n")); | |
952 | return; | |
953 | } | |
954 | ||
471b9d15 MR |
955 | valid_options = &valid_options_and_args->options; |
956 | ||
65b48a81 PB |
957 | /* Verify we have valid disassembler options. */ |
958 | FOR_EACH_DISASSEMBLER_OPTION (opt, options) | |
959 | { | |
960 | size_t i; | |
961 | for (i = 0; valid_options->name[i] != NULL; i++) | |
471b9d15 MR |
962 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
963 | { | |
964 | size_t len = strlen (valid_options->name[i]); | |
965 | bool found = false; | |
966 | const char *arg; | |
967 | size_t j; | |
968 | ||
969 | if (memcmp (opt, valid_options->name[i], len) != 0) | |
970 | continue; | |
971 | arg = opt + len; | |
972 | for (j = 0; valid_options->arg[i]->values[j] != NULL; j++) | |
973 | if (disassembler_options_cmp | |
974 | (arg, valid_options->arg[i]->values[j]) == 0) | |
975 | { | |
976 | found = true; | |
977 | break; | |
978 | } | |
979 | if (found) | |
980 | break; | |
981 | } | |
982 | else if (disassembler_options_cmp (opt, valid_options->name[i]) == 0) | |
65b48a81 PB |
983 | break; |
984 | if (valid_options->name[i] == NULL) | |
985 | { | |
986 | fprintf_filtered (gdb_stdlog, | |
987 | _("Invalid disassembler option value: '%s'.\n"), | |
988 | opt); | |
989 | return; | |
990 | } | |
991 | } | |
992 | ||
993 | free (*disassembler_options); | |
994 | *disassembler_options = xstrdup (options); | |
995 | } | |
996 | ||
997 | static void | |
eb4c3f4a | 998 | set_disassembler_options_sfunc (const char *args, int from_tty, |
65b48a81 PB |
999 | struct cmd_list_element *c) |
1000 | { | |
1001 | set_disassembler_options (prospective_options); | |
1002 | } | |
1003 | ||
1004 | static void | |
1005 | show_disassembler_options_sfunc (struct ui_file *file, int from_tty, | |
1006 | struct cmd_list_element *c, const char *value) | |
1007 | { | |
1008 | struct gdbarch *gdbarch = get_current_arch (); | |
471b9d15 MR |
1009 | const disasm_options_and_args_t *valid_options_and_args; |
1010 | const disasm_option_arg_t *valid_args; | |
65b48a81 PB |
1011 | const disasm_options_t *valid_options; |
1012 | ||
1013 | const char *options = get_disassembler_options (gdbarch); | |
1014 | if (options == NULL) | |
1015 | options = ""; | |
1016 | ||
f4bab6ff | 1017 | fprintf_filtered (file, _("The current disassembler options are '%s'\n\n"), |
65b48a81 PB |
1018 | options); |
1019 | ||
471b9d15 | 1020 | valid_options_and_args = gdbarch_valid_disassembler_options (gdbarch); |
65b48a81 | 1021 | |
471b9d15 | 1022 | if (valid_options_and_args == NULL) |
f4bab6ff TT |
1023 | { |
1024 | fputs_filtered (_("There are no disassembler options available " | |
1025 | "for this architecture.\n"), | |
1026 | file); | |
1027 | return; | |
1028 | } | |
65b48a81 | 1029 | |
471b9d15 MR |
1030 | valid_options = &valid_options_and_args->options; |
1031 | ||
f4bab6ff | 1032 | fprintf_filtered (file, _("\ |
65b48a81 | 1033 | The following disassembler options are supported for use with the\n\ |
f4bab6ff | 1034 | 'set disassembler-options OPTION [,OPTION]...' command:\n")); |
65b48a81 PB |
1035 | |
1036 | if (valid_options->description != NULL) | |
1037 | { | |
1038 | size_t i, max_len = 0; | |
1039 | ||
471b9d15 MR |
1040 | fprintf_filtered (file, "\n"); |
1041 | ||
65b48a81 PB |
1042 | /* Compute the length of the longest option name. */ |
1043 | for (i = 0; valid_options->name[i] != NULL; i++) | |
1044 | { | |
1045 | size_t len = strlen (valid_options->name[i]); | |
471b9d15 MR |
1046 | |
1047 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) | |
1048 | len += strlen (valid_options->arg[i]->name); | |
65b48a81 PB |
1049 | if (max_len < len) |
1050 | max_len = len; | |
1051 | } | |
1052 | ||
1053 | for (i = 0, max_len++; valid_options->name[i] != NULL; i++) | |
1054 | { | |
1055 | fprintf_filtered (file, " %s", valid_options->name[i]); | |
471b9d15 MR |
1056 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
1057 | fprintf_filtered (file, "%s", valid_options->arg[i]->name); | |
65b48a81 | 1058 | if (valid_options->description[i] != NULL) |
471b9d15 MR |
1059 | { |
1060 | size_t len = strlen (valid_options->name[i]); | |
1061 | ||
1062 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) | |
1063 | len += strlen (valid_options->arg[i]->name); | |
1064 | fprintf_filtered (file, "%*c %s", (int) (max_len - len), ' ', | |
1065 | valid_options->description[i]); | |
1066 | } | |
65b48a81 PB |
1067 | fprintf_filtered (file, "\n"); |
1068 | } | |
1069 | } | |
1070 | else | |
1071 | { | |
1072 | size_t i; | |
1073 | fprintf_filtered (file, " "); | |
1074 | for (i = 0; valid_options->name[i] != NULL; i++) | |
1075 | { | |
1076 | fprintf_filtered (file, "%s", valid_options->name[i]); | |
471b9d15 MR |
1077 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
1078 | fprintf_filtered (file, "%s", valid_options->arg[i]->name); | |
65b48a81 PB |
1079 | if (valid_options->name[i + 1] != NULL) |
1080 | fprintf_filtered (file, ", "); | |
1081 | wrap_here (" "); | |
1082 | } | |
1083 | fprintf_filtered (file, "\n"); | |
1084 | } | |
471b9d15 MR |
1085 | |
1086 | valid_args = valid_options_and_args->args; | |
1087 | if (valid_args != NULL) | |
1088 | { | |
1089 | size_t i, j; | |
1090 | ||
1091 | for (i = 0; valid_args[i].name != NULL; i++) | |
1092 | { | |
1093 | fprintf_filtered (file, _("\n\ | |
1094 | For the options above, the following values are supported for \"%s\":\n "), | |
1095 | valid_args[i].name); | |
1096 | for (j = 0; valid_args[i].values[j] != NULL; j++) | |
1097 | { | |
1098 | fprintf_filtered (file, " %s", valid_args[i].values[j]); | |
1099 | wrap_here (" "); | |
1100 | } | |
1101 | fprintf_filtered (file, "\n"); | |
1102 | } | |
1103 | } | |
65b48a81 PB |
1104 | } |
1105 | ||
1106 | /* A completion function for "set disassembler". */ | |
1107 | ||
eb3ff9a5 | 1108 | static void |
65b48a81 | 1109 | disassembler_options_completer (struct cmd_list_element *ignore, |
eb3ff9a5 | 1110 | completion_tracker &tracker, |
65b48a81 PB |
1111 | const char *text, const char *word) |
1112 | { | |
1113 | struct gdbarch *gdbarch = get_current_arch (); | |
471b9d15 MR |
1114 | const disasm_options_and_args_t *opts_and_args |
1115 | = gdbarch_valid_disassembler_options (gdbarch); | |
65b48a81 | 1116 | |
471b9d15 | 1117 | if (opts_and_args != NULL) |
65b48a81 | 1118 | { |
471b9d15 MR |
1119 | const disasm_options_t *opts = &opts_and_args->options; |
1120 | ||
65b48a81 PB |
1121 | /* Only attempt to complete on the last option text. */ |
1122 | const char *separator = strrchr (text, ','); | |
1123 | if (separator != NULL) | |
1124 | text = separator + 1; | |
f1735a53 | 1125 | text = skip_spaces (text); |
eb3ff9a5 | 1126 | complete_on_enum (tracker, opts->name, text, word); |
65b48a81 | 1127 | } |
65b48a81 PB |
1128 | } |
1129 | ||
1130 | ||
1131 | /* Initialization code. */ | |
1132 | ||
65b48a81 PB |
1133 | void |
1134 | _initialize_disasm (void) | |
1135 | { | |
1136 | struct cmd_list_element *cmd; | |
1137 | ||
1138 | /* Add the command that controls the disassembler options. */ | |
1139 | cmd = add_setshow_string_noescape_cmd ("disassembler-options", no_class, | |
1140 | &prospective_options, _("\ | |
1141 | Set the disassembler options.\n\ | |
7c9ee61b | 1142 | Usage: set disassembler-options OPTION [,OPTION]...\n\n\ |
65b48a81 PB |
1143 | See: 'show disassembler-options' for valid option values.\n"), _("\ |
1144 | Show the disassembler options."), NULL, | |
1145 | set_disassembler_options_sfunc, | |
1146 | show_disassembler_options_sfunc, | |
1147 | &setlist, &showlist); | |
1148 | set_cmd_completer (cmd, disassembler_options_completer); | |
1149 | } |