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" | |
65b48a81 | 21 | #include "arch-utils.h" |
4de283e4 TT |
22 | #include "target.h" |
23 | #include "value.h" | |
24 | #include "ui-out.h" | |
92df71f0 | 25 | #include "disasm.h" |
d55e5aa6 | 26 | #include "gdbcore.h" |
4de283e4 TT |
27 | #include "gdbcmd.h" |
28 | #include "dis-asm.h" | |
d55e5aa6 | 29 | #include "source.h" |
4de283e4 TT |
30 | #include "safe-ctype.h" |
31 | #include <algorithm> | |
268a13a5 | 32 | #include "gdbsupport/gdb_optional.h" |
c7110220 | 33 | #include "valprint.h" |
92df71f0 FN |
34 | |
35 | /* Disassemble functions. | |
36 | FIXME: We should get rid of all the duplicate code in gdb that does | |
0963b4bd | 37 | the same thing: disassemble_command() and the gdbtk variation. */ |
92df71f0 | 38 | |
65b48a81 PB |
39 | /* This variable is used to hold the prospective disassembler_options value |
40 | which is set by the "set disassembler_options" command. */ | |
41 | static char *prospective_options = NULL; | |
42 | ||
6ff0ba5f DE |
43 | /* This structure is used to store line number information for the |
44 | deprecated /m option. | |
92df71f0 FN |
45 | We need a different sort of line table from the normal one cuz we can't |
46 | depend upon implicit line-end pc's for lines to do the | |
47 | reordering in this function. */ | |
48 | ||
6ff0ba5f | 49 | struct deprecated_dis_line_entry |
92df71f0 FN |
50 | { |
51 | int line; | |
52 | CORE_ADDR start_pc; | |
53 | CORE_ADDR end_pc; | |
54 | }; | |
55 | ||
6ff0ba5f DE |
56 | /* This Structure is used to store line number information. |
57 | We need a different sort of line table from the normal one cuz we can't | |
58 | depend upon implicit line-end pc's for lines to do the | |
59 | reordering in this function. */ | |
60 | ||
61 | struct dis_line_entry | |
62 | { | |
63 | struct symtab *symtab; | |
64 | int line; | |
65 | }; | |
66 | ||
67 | /* Hash function for dis_line_entry. */ | |
68 | ||
69 | static hashval_t | |
70 | hash_dis_line_entry (const void *item) | |
71 | { | |
9a3c8263 | 72 | const struct dis_line_entry *dle = (const struct dis_line_entry *) item; |
6ff0ba5f DE |
73 | |
74 | return htab_hash_pointer (dle->symtab) + dle->line; | |
75 | } | |
76 | ||
77 | /* Equal function for dis_line_entry. */ | |
78 | ||
79 | static int | |
80 | eq_dis_line_entry (const void *item_lhs, const void *item_rhs) | |
81 | { | |
9a3c8263 SM |
82 | const struct dis_line_entry *lhs = (const struct dis_line_entry *) item_lhs; |
83 | const struct dis_line_entry *rhs = (const struct dis_line_entry *) item_rhs; | |
6ff0ba5f DE |
84 | |
85 | return (lhs->symtab == rhs->symtab | |
86 | && lhs->line == rhs->line); | |
87 | } | |
88 | ||
89 | /* Create the table to manage lines for mixed source/disassembly. */ | |
90 | ||
91 | static htab_t | |
92 | allocate_dis_line_table (void) | |
93 | { | |
94 | return htab_create_alloc (41, | |
95 | hash_dis_line_entry, eq_dis_line_entry, | |
96 | xfree, xcalloc, xfree); | |
97 | } | |
98 | ||
4a099de2 | 99 | /* Add a new dis_line_entry containing SYMTAB and LINE to TABLE. */ |
6ff0ba5f DE |
100 | |
101 | static void | |
4a099de2 | 102 | add_dis_line_entry (htab_t table, struct symtab *symtab, int line) |
6ff0ba5f DE |
103 | { |
104 | void **slot; | |
105 | struct dis_line_entry dle, *dlep; | |
106 | ||
107 | dle.symtab = symtab; | |
108 | dle.line = line; | |
109 | slot = htab_find_slot (table, &dle, INSERT); | |
110 | if (*slot == NULL) | |
111 | { | |
112 | dlep = XNEW (struct dis_line_entry); | |
113 | dlep->symtab = symtab; | |
114 | dlep->line = line; | |
115 | *slot = dlep; | |
116 | } | |
117 | } | |
118 | ||
119 | /* Return non-zero if SYMTAB, LINE are in TABLE. */ | |
120 | ||
121 | static int | |
122 | line_has_code_p (htab_t table, struct symtab *symtab, int line) | |
123 | { | |
124 | struct dis_line_entry dle; | |
125 | ||
126 | dle.symtab = symtab; | |
127 | dle.line = line; | |
128 | return htab_find (table, &dle) != NULL; | |
129 | } | |
130 | ||
e47ad6c0 YQ |
131 | /* Wrapper of target_read_code. */ |
132 | ||
133 | int | |
134 | gdb_disassembler::dis_asm_read_memory (bfd_vma memaddr, gdb_byte *myaddr, | |
135 | unsigned int len, | |
136 | struct disassemble_info *info) | |
810ecf9f | 137 | { |
283f7163 | 138 | return target_read_code (memaddr, myaddr, len); |
810ecf9f AC |
139 | } |
140 | ||
e47ad6c0 YQ |
141 | /* Wrapper of memory_error. */ |
142 | ||
143 | void | |
144 | gdb_disassembler::dis_asm_memory_error (int err, bfd_vma memaddr, | |
145 | struct disassemble_info *info) | |
810ecf9f | 146 | { |
d8b49cf0 YQ |
147 | gdb_disassembler *self |
148 | = static_cast<gdb_disassembler *>(info->application_data); | |
149 | ||
150 | self->m_err_memaddr = memaddr; | |
810ecf9f AC |
151 | } |
152 | ||
e47ad6c0 YQ |
153 | /* Wrapper of print_address. */ |
154 | ||
155 | void | |
156 | gdb_disassembler::dis_asm_print_address (bfd_vma addr, | |
157 | struct disassemble_info *info) | |
810ecf9f | 158 | { |
e47ad6c0 YQ |
159 | gdb_disassembler *self |
160 | = static_cast<gdb_disassembler *>(info->application_data); | |
9a619af0 | 161 | |
e47ad6c0 | 162 | print_address (self->arch (), addr, self->stream ()); |
810ecf9f AC |
163 | } |
164 | ||
92df71f0 | 165 | static int |
bde58177 | 166 | compare_lines (const void *mle1p, const void *mle2p) |
92df71f0 | 167 | { |
6ff0ba5f | 168 | struct deprecated_dis_line_entry *mle1, *mle2; |
92df71f0 FN |
169 | int val; |
170 | ||
6ff0ba5f DE |
171 | mle1 = (struct deprecated_dis_line_entry *) mle1p; |
172 | mle2 = (struct deprecated_dis_line_entry *) mle2p; | |
92df71f0 | 173 | |
9011945e AB |
174 | /* End of sequence markers have a line number of 0 but don't want to |
175 | be sorted to the head of the list, instead sort by PC. */ | |
176 | if (mle1->line == 0 || mle2->line == 0) | |
177 | { | |
178 | val = mle1->start_pc - mle2->start_pc; | |
179 | if (val == 0) | |
180 | val = mle1->line - mle2->line; | |
181 | } | |
182 | else | |
183 | { | |
184 | val = mle1->line - mle2->line; | |
185 | if (val == 0) | |
186 | val = mle1->start_pc - mle2->start_pc; | |
187 | } | |
188 | return val; | |
92df71f0 FN |
189 | } |
190 | ||
a50a4026 | 191 | /* See disasm.h. */ |
af70908d | 192 | |
a50a4026 | 193 | int |
046bebe1 | 194 | gdb_pretty_print_disassembler::pretty_print_insn (const struct disasm_insn *insn, |
9a24775b | 195 | gdb_disassembly_flags flags) |
92df71f0 | 196 | { |
92df71f0 FN |
197 | /* parts of the symbolic representation of the address */ |
198 | int unmapped; | |
92df71f0 FN |
199 | int offset; |
200 | int line; | |
af70908d | 201 | int size; |
a50a4026 | 202 | CORE_ADDR pc; |
8b172ce7 | 203 | struct gdbarch *gdbarch = arch (); |
af70908d | 204 | |
393702cd | 205 | { |
046bebe1 | 206 | ui_out_emit_tuple tuple_emitter (m_uiout, NULL); |
393702cd TT |
207 | pc = insn->addr; |
208 | ||
209 | if (insn->number != 0) | |
210 | { | |
046bebe1 TT |
211 | m_uiout->field_unsigned ("insn-number", insn->number); |
212 | m_uiout->text ("\t"); | |
393702cd TT |
213 | } |
214 | ||
215 | if ((flags & DISASSEMBLY_SPECULATIVE) != 0) | |
216 | { | |
217 | if (insn->is_speculative) | |
218 | { | |
046bebe1 | 219 | m_uiout->field_string ("is-speculative", "?"); |
393702cd TT |
220 | |
221 | /* The speculative execution indication overwrites the first | |
222 | character of the PC prefix. | |
223 | We assume a PC prefix length of 3 characters. */ | |
224 | if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
046bebe1 | 225 | m_uiout->text (pc_prefix (pc) + 1); |
393702cd | 226 | else |
046bebe1 | 227 | m_uiout->text (" "); |
393702cd TT |
228 | } |
229 | else if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
046bebe1 | 230 | m_uiout->text (pc_prefix (pc)); |
393702cd | 231 | else |
046bebe1 | 232 | m_uiout->text (" "); |
393702cd TT |
233 | } |
234 | else if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
046bebe1 TT |
235 | m_uiout->text (pc_prefix (pc)); |
236 | m_uiout->field_core_addr ("address", gdbarch, pc); | |
393702cd | 237 | |
c7110220 | 238 | std::string name, filename; |
2dc80cf8 KB |
239 | bool omit_fname = ((flags & DISASSEMBLY_OMIT_FNAME) != 0); |
240 | if (!build_address_symbolic (gdbarch, pc, false, omit_fname, &name, | |
241 | &offset, &filename, &line, &unmapped)) | |
393702cd TT |
242 | { |
243 | /* We don't care now about line, filename and unmapped. But we might in | |
244 | the future. */ | |
046bebe1 | 245 | m_uiout->text (" <"); |
2dc80cf8 | 246 | if (!omit_fname) |
046bebe1 TT |
247 | m_uiout->field_string ("func-name", name.c_str (), |
248 | ui_out_style_kind::FUNCTION); | |
2dc80cf8 KB |
249 | /* For negative offsets, avoid displaying them as +-N; the sign of |
250 | the offset takes the place of the "+" here. */ | |
251 | if (offset >= 0) | |
046bebe1 TT |
252 | m_uiout->text ("+"); |
253 | m_uiout->field_signed ("offset", offset); | |
254 | m_uiout->text (">:\t"); | |
393702cd TT |
255 | } |
256 | else | |
046bebe1 | 257 | m_uiout->text (":\t"); |
393702cd | 258 | |
393702cd TT |
259 | m_insn_stb.clear (); |
260 | ||
261 | if (flags & DISASSEMBLY_RAW_INSN) | |
262 | { | |
263 | CORE_ADDR end_pc; | |
264 | bfd_byte data; | |
393702cd TT |
265 | const char *spacer = ""; |
266 | ||
267 | /* Build the opcodes using a temporary stream so we can | |
268 | write them out in a single go for the MI. */ | |
269 | m_opcode_stb.clear (); | |
270 | ||
271 | size = m_di.print_insn (pc); | |
272 | end_pc = pc + size; | |
273 | ||
274 | for (;pc < end_pc; ++pc) | |
275 | { | |
276 | read_code (pc, &data, 1); | |
277 | m_opcode_stb.printf ("%s%02x", spacer, (unsigned) data); | |
278 | spacer = " "; | |
279 | } | |
280 | ||
046bebe1 TT |
281 | m_uiout->field_stream ("opcodes", m_opcode_stb); |
282 | m_uiout->text ("\t"); | |
393702cd TT |
283 | } |
284 | else | |
8b172ce7 | 285 | size = m_di.print_insn (pc); |
af70908d | 286 | |
046bebe1 | 287 | m_uiout->field_stream ("inst", m_insn_stb); |
393702cd | 288 | } |
046bebe1 | 289 | m_uiout->text ("\n"); |
af70908d MM |
290 | |
291 | return size; | |
292 | } | |
293 | ||
294 | static int | |
187808b0 PA |
295 | dump_insns (struct gdbarch *gdbarch, |
296 | struct ui_out *uiout, CORE_ADDR low, CORE_ADDR high, | |
9a24775b | 297 | int how_many, gdb_disassembly_flags flags, CORE_ADDR *end_pc) |
af70908d | 298 | { |
a50a4026 | 299 | struct disasm_insn insn; |
af70908d MM |
300 | int num_displayed = 0; |
301 | ||
a50a4026 MM |
302 | memset (&insn, 0, sizeof (insn)); |
303 | insn.addr = low; | |
304 | ||
046bebe1 | 305 | gdb_pretty_print_disassembler disasm (gdbarch, uiout); |
8b172ce7 | 306 | |
a50a4026 | 307 | while (insn.addr < high && (how_many < 0 || num_displayed < how_many)) |
af70908d MM |
308 | { |
309 | int size; | |
310 | ||
046bebe1 | 311 | size = disasm.pretty_print_insn (&insn, flags); |
af70908d MM |
312 | if (size <= 0) |
313 | break; | |
314 | ||
315 | ++num_displayed; | |
a50a4026 | 316 | insn.addr += size; |
af70908d MM |
317 | |
318 | /* Allow user to bail out with ^C. */ | |
319 | QUIT; | |
92df71f0 | 320 | } |
6ff0ba5f DE |
321 | |
322 | if (end_pc != NULL) | |
a50a4026 | 323 | *end_pc = insn.addr; |
af70908d | 324 | |
92df71f0 FN |
325 | return num_displayed; |
326 | } | |
327 | ||
328 | /* The idea here is to present a source-O-centric view of a | |
329 | function to the user. This means that things are presented | |
330 | in source order, with (possibly) out of order assembly | |
6ff0ba5f DE |
331 | immediately following. |
332 | ||
333 | N.B. This view is deprecated. */ | |
0963b4bd | 334 | |
92df71f0 | 335 | static void |
6ff0ba5f | 336 | do_mixed_source_and_assembly_deprecated |
187808b0 PA |
337 | (struct gdbarch *gdbarch, struct ui_out *uiout, |
338 | struct symtab *symtab, | |
6ff0ba5f | 339 | CORE_ADDR low, CORE_ADDR high, |
9a24775b | 340 | int how_many, gdb_disassembly_flags flags) |
92df71f0 FN |
341 | { |
342 | int newlines = 0; | |
6ff0ba5f DE |
343 | int nlines; |
344 | struct linetable_entry *le; | |
345 | struct deprecated_dis_line_entry *mle; | |
92df71f0 FN |
346 | struct symtab_and_line sal; |
347 | int i; | |
348 | int out_of_order = 0; | |
349 | int next_line = 0; | |
92df71f0 | 350 | int num_displayed = 0; |
8d297bbf | 351 | print_source_lines_flags psl_flags = 0; |
92df71f0 | 352 | |
6ff0ba5f DE |
353 | gdb_assert (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL); |
354 | ||
355 | nlines = SYMTAB_LINETABLE (symtab)->nitems; | |
356 | le = SYMTAB_LINETABLE (symtab)->item; | |
357 | ||
4cd29721 MM |
358 | if (flags & DISASSEMBLY_FILENAME) |
359 | psl_flags |= PRINT_SOURCE_LINES_FILENAME; | |
360 | ||
6ff0ba5f DE |
361 | mle = (struct deprecated_dis_line_entry *) |
362 | alloca (nlines * sizeof (struct deprecated_dis_line_entry)); | |
92df71f0 FN |
363 | |
364 | /* Copy linetable entries for this function into our data | |
365 | structure, creating end_pc's and setting out_of_order as | |
366 | appropriate. */ | |
367 | ||
368 | /* First, skip all the preceding functions. */ | |
369 | ||
370 | for (i = 0; i < nlines - 1 && le[i].pc < low; i++); | |
371 | ||
372 | /* Now, copy all entries before the end of this function. */ | |
373 | ||
374 | for (; i < nlines - 1 && le[i].pc < high; i++) | |
375 | { | |
376 | if (le[i].line == le[i + 1].line && le[i].pc == le[i + 1].pc) | |
0963b4bd | 377 | continue; /* Ignore duplicates. */ |
92df71f0 FN |
378 | |
379 | /* Skip any end-of-function markers. */ | |
380 | if (le[i].line == 0) | |
381 | continue; | |
382 | ||
383 | mle[newlines].line = le[i].line; | |
384 | if (le[i].line > le[i + 1].line) | |
385 | out_of_order = 1; | |
386 | mle[newlines].start_pc = le[i].pc; | |
387 | mle[newlines].end_pc = le[i + 1].pc; | |
388 | newlines++; | |
389 | } | |
390 | ||
391 | /* If we're on the last line, and it's part of the function, | |
392 | then we need to get the end pc in a special way. */ | |
393 | ||
394 | if (i == nlines - 1 && le[i].pc < high) | |
395 | { | |
396 | mle[newlines].line = le[i].line; | |
397 | mle[newlines].start_pc = le[i].pc; | |
398 | sal = find_pc_line (le[i].pc, 0); | |
399 | mle[newlines].end_pc = sal.end; | |
400 | newlines++; | |
401 | } | |
402 | ||
6ff0ba5f | 403 | /* Now, sort mle by line #s (and, then by addresses within lines). */ |
92df71f0 FN |
404 | |
405 | if (out_of_order) | |
6ff0ba5f DE |
406 | qsort (mle, newlines, sizeof (struct deprecated_dis_line_entry), |
407 | compare_lines); | |
92df71f0 FN |
408 | |
409 | /* Now, for each line entry, emit the specified lines (unless | |
410 | they have been emitted before), followed by the assembly code | |
411 | for that line. */ | |
412 | ||
30f0b101 TT |
413 | ui_out_emit_list asm_insns_list (uiout, "asm_insns"); |
414 | ||
415 | gdb::optional<ui_out_emit_tuple> outer_tuple_emitter; | |
416 | gdb::optional<ui_out_emit_list> inner_list_emitter; | |
92df71f0 FN |
417 | |
418 | for (i = 0; i < newlines; i++) | |
419 | { | |
92df71f0 FN |
420 | /* Print out everything from next_line to the current line. */ |
421 | if (mle[i].line >= next_line) | |
422 | { | |
423 | if (next_line != 0) | |
424 | { | |
0963b4bd | 425 | /* Just one line to print. */ |
92df71f0 FN |
426 | if (next_line == mle[i].line) |
427 | { | |
30f0b101 | 428 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 429 | print_source_lines (symtab, next_line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
430 | } |
431 | else | |
432 | { | |
0963b4bd | 433 | /* Several source lines w/o asm instructions associated. */ |
92df71f0 FN |
434 | for (; next_line < mle[i].line; next_line++) |
435 | { | |
2e783024 TT |
436 | ui_out_emit_tuple tuple_emitter (uiout, |
437 | "src_and_asm_line"); | |
92df71f0 | 438 | print_source_lines (symtab, next_line, next_line + 1, |
4cd29721 | 439 | psl_flags); |
b926417a TT |
440 | ui_out_emit_list temp_list_emitter (uiout, |
441 | "line_asm_insn"); | |
92df71f0 FN |
442 | } |
443 | /* Print the last line and leave list open for | |
0963b4bd | 444 | asm instructions to be added. */ |
30f0b101 | 445 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 446 | print_source_lines (symtab, next_line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
447 | } |
448 | } | |
449 | else | |
450 | { | |
30f0b101 | 451 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 452 | print_source_lines (symtab, mle[i].line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
453 | } |
454 | ||
455 | next_line = mle[i].line + 1; | |
30f0b101 | 456 | inner_list_emitter.emplace (uiout, "line_asm_insn"); |
92df71f0 FN |
457 | } |
458 | ||
187808b0 | 459 | num_displayed += dump_insns (gdbarch, uiout, |
13274fc3 | 460 | mle[i].start_pc, mle[i].end_pc, |
e47ad6c0 | 461 | how_many, flags, NULL); |
0127c0d3 JJ |
462 | |
463 | /* When we've reached the end of the mle array, or we've seen the last | |
464 | assembly range for this source line, close out the list/tuple. */ | |
465 | if (i == (newlines - 1) || mle[i + 1].line > mle[i].line) | |
92df71f0 | 466 | { |
30f0b101 TT |
467 | inner_list_emitter.reset (); |
468 | outer_tuple_emitter.reset (); | |
112e8700 | 469 | uiout->text ("\n"); |
92df71f0 | 470 | } |
0127c0d3 JJ |
471 | if (how_many >= 0 && num_displayed >= how_many) |
472 | break; | |
92df71f0 | 473 | } |
92df71f0 FN |
474 | } |
475 | ||
6ff0ba5f DE |
476 | /* The idea here is to present a source-O-centric view of a |
477 | function to the user. This means that things are presented | |
478 | in source order, with (possibly) out of order assembly | |
479 | immediately following. */ | |
480 | ||
481 | static void | |
e47ad6c0 YQ |
482 | do_mixed_source_and_assembly (struct gdbarch *gdbarch, |
483 | struct ui_out *uiout, | |
6ff0ba5f DE |
484 | struct symtab *main_symtab, |
485 | CORE_ADDR low, CORE_ADDR high, | |
9a24775b | 486 | int how_many, gdb_disassembly_flags flags) |
6ff0ba5f | 487 | { |
6ff0ba5f | 488 | const struct linetable_entry *le, *first_le; |
6ff0ba5f | 489 | int i, nlines; |
6ff0ba5f | 490 | int num_displayed = 0; |
8d297bbf | 491 | print_source_lines_flags psl_flags = 0; |
6ff0ba5f DE |
492 | CORE_ADDR pc; |
493 | struct symtab *last_symtab; | |
494 | int last_line; | |
6ff0ba5f DE |
495 | |
496 | gdb_assert (main_symtab != NULL && SYMTAB_LINETABLE (main_symtab) != NULL); | |
497 | ||
498 | /* First pass: collect the list of all source files and lines. | |
499 | We do this so that we can only print lines containing code once. | |
500 | We try to print the source text leading up to the next instruction, | |
501 | but if that text is for code that will be disassembled later, then | |
502 | we'll want to defer printing it until later with its associated code. */ | |
503 | ||
fc4007c9 | 504 | htab_up dis_line_table (allocate_dis_line_table ()); |
6ff0ba5f DE |
505 | |
506 | pc = low; | |
507 | ||
508 | /* The prologue may be empty, but there may still be a line number entry | |
509 | for the opening brace which is distinct from the first line of code. | |
510 | If the prologue has been eliminated find_pc_line may return the source | |
511 | line after the opening brace. We still want to print this opening brace. | |
512 | first_le is used to implement this. */ | |
513 | ||
514 | nlines = SYMTAB_LINETABLE (main_symtab)->nitems; | |
515 | le = SYMTAB_LINETABLE (main_symtab)->item; | |
516 | first_le = NULL; | |
517 | ||
518 | /* Skip all the preceding functions. */ | |
519 | for (i = 0; i < nlines && le[i].pc < low; i++) | |
520 | continue; | |
521 | ||
522 | if (i < nlines && le[i].pc < high) | |
523 | first_le = &le[i]; | |
524 | ||
525 | /* Add lines for every pc value. */ | |
526 | while (pc < high) | |
527 | { | |
528 | struct symtab_and_line sal; | |
529 | int length; | |
530 | ||
531 | sal = find_pc_line (pc, 0); | |
532 | length = gdb_insn_length (gdbarch, pc); | |
533 | pc += length; | |
534 | ||
535 | if (sal.symtab != NULL) | |
fc4007c9 | 536 | add_dis_line_entry (dis_line_table.get (), sal.symtab, sal.line); |
6ff0ba5f DE |
537 | } |
538 | ||
539 | /* Second pass: print the disassembly. | |
540 | ||
541 | Output format, from an MI perspective: | |
542 | The result is a ui_out list, field name "asm_insns", where elements have | |
543 | name "src_and_asm_line". | |
544 | Each element is a tuple of source line specs (field names line, file, | |
545 | fullname), and field "line_asm_insn" which contains the disassembly. | |
546 | Field "line_asm_insn" is a list of tuples: address, func-name, offset, | |
547 | opcodes, inst. | |
548 | ||
549 | CLI output works on top of this because MI ignores ui_out_text output, | |
550 | which is where we put file name and source line contents output. | |
551 | ||
30f0b101 TT |
552 | Emitter usage: |
553 | asm_insns_emitter | |
6ff0ba5f | 554 | Handles the outer "asm_insns" list. |
30f0b101 | 555 | tuple_emitter |
6ff0ba5f | 556 | The tuples for each group of consecutive disassemblies. |
30f0b101 | 557 | list_emitter |
6ff0ba5f DE |
558 | List of consecutive source lines or disassembled insns. */ |
559 | ||
560 | if (flags & DISASSEMBLY_FILENAME) | |
561 | psl_flags |= PRINT_SOURCE_LINES_FILENAME; | |
562 | ||
30f0b101 | 563 | ui_out_emit_list asm_insns_emitter (uiout, "asm_insns"); |
6ff0ba5f | 564 | |
30f0b101 TT |
565 | gdb::optional<ui_out_emit_tuple> tuple_emitter; |
566 | gdb::optional<ui_out_emit_list> list_emitter; | |
6ff0ba5f DE |
567 | |
568 | last_symtab = NULL; | |
569 | last_line = 0; | |
570 | pc = low; | |
571 | ||
572 | while (pc < high) | |
573 | { | |
6ff0ba5f DE |
574 | struct symtab_and_line sal; |
575 | CORE_ADDR end_pc; | |
576 | int start_preceding_line_to_display = 0; | |
577 | int end_preceding_line_to_display = 0; | |
578 | int new_source_line = 0; | |
579 | ||
580 | sal = find_pc_line (pc, 0); | |
581 | ||
582 | if (sal.symtab != last_symtab) | |
583 | { | |
584 | /* New source file. */ | |
585 | new_source_line = 1; | |
586 | ||
587 | /* If this is the first line of output, check for any preceding | |
588 | lines. */ | |
589 | if (last_line == 0 | |
590 | && first_le != NULL | |
591 | && first_le->line < sal.line) | |
592 | { | |
593 | start_preceding_line_to_display = first_le->line; | |
594 | end_preceding_line_to_display = sal.line; | |
595 | } | |
596 | } | |
597 | else | |
598 | { | |
599 | /* Same source file as last time. */ | |
600 | if (sal.symtab != NULL) | |
601 | { | |
602 | if (sal.line > last_line + 1 && last_line != 0) | |
603 | { | |
604 | int l; | |
605 | ||
606 | /* Several preceding source lines. Print the trailing ones | |
607 | not associated with code that we'll print later. */ | |
608 | for (l = sal.line - 1; l > last_line; --l) | |
609 | { | |
fc4007c9 TT |
610 | if (line_has_code_p (dis_line_table.get (), |
611 | sal.symtab, l)) | |
6ff0ba5f DE |
612 | break; |
613 | } | |
614 | if (l < sal.line - 1) | |
615 | { | |
616 | start_preceding_line_to_display = l + 1; | |
617 | end_preceding_line_to_display = sal.line; | |
618 | } | |
619 | } | |
620 | if (sal.line != last_line) | |
621 | new_source_line = 1; | |
622 | else | |
623 | { | |
624 | /* Same source line as last time. This can happen, depending | |
625 | on the debug info. */ | |
626 | } | |
627 | } | |
628 | } | |
629 | ||
630 | if (new_source_line) | |
631 | { | |
632 | /* Skip the newline if this is the first instruction. */ | |
633 | if (pc > low) | |
112e8700 | 634 | uiout->text ("\n"); |
30f0b101 | 635 | if (tuple_emitter.has_value ()) |
6ff0ba5f | 636 | { |
30f0b101 TT |
637 | gdb_assert (list_emitter.has_value ()); |
638 | list_emitter.reset (); | |
639 | tuple_emitter.reset (); | |
6ff0ba5f DE |
640 | } |
641 | if (sal.symtab != last_symtab | |
642 | && !(flags & DISASSEMBLY_FILENAME)) | |
643 | { | |
644 | /* Remember MI ignores ui_out_text. | |
645 | We don't have to do anything here for MI because MI | |
646 | output includes the source specs for each line. */ | |
647 | if (sal.symtab != NULL) | |
648 | { | |
112e8700 | 649 | uiout->text (symtab_to_filename_for_display (sal.symtab)); |
6ff0ba5f DE |
650 | } |
651 | else | |
112e8700 SM |
652 | uiout->text ("unknown"); |
653 | uiout->text (":\n"); | |
6ff0ba5f DE |
654 | } |
655 | if (start_preceding_line_to_display > 0) | |
656 | { | |
657 | /* Several source lines w/o asm instructions associated. | |
658 | We need to preserve the structure of the output, so output | |
659 | a bunch of line tuples with no asm entries. */ | |
660 | int l; | |
6ff0ba5f DE |
661 | |
662 | gdb_assert (sal.symtab != NULL); | |
663 | for (l = start_preceding_line_to_display; | |
664 | l < end_preceding_line_to_display; | |
665 | ++l) | |
666 | { | |
b926417a TT |
667 | ui_out_emit_tuple line_tuple_emitter (uiout, |
668 | "src_and_asm_line"); | |
6ff0ba5f | 669 | print_source_lines (sal.symtab, l, l + 1, psl_flags); |
30f0b101 | 670 | ui_out_emit_list chain_line_emitter (uiout, "line_asm_insn"); |
6ff0ba5f DE |
671 | } |
672 | } | |
30f0b101 | 673 | tuple_emitter.emplace (uiout, "src_and_asm_line"); |
6ff0ba5f DE |
674 | if (sal.symtab != NULL) |
675 | print_source_lines (sal.symtab, sal.line, sal.line + 1, psl_flags); | |
676 | else | |
112e8700 | 677 | uiout->text (_("--- no source info for this pc ---\n")); |
30f0b101 | 678 | list_emitter.emplace (uiout, "line_asm_insn"); |
6ff0ba5f DE |
679 | } |
680 | else | |
681 | { | |
682 | /* Here we're appending instructions to an existing line. | |
683 | By construction the very first insn will have a symtab | |
684 | and follow the new_source_line path above. */ | |
30f0b101 TT |
685 | gdb_assert (tuple_emitter.has_value ()); |
686 | gdb_assert (list_emitter.has_value ()); | |
6ff0ba5f DE |
687 | } |
688 | ||
689 | if (sal.end != 0) | |
325fac50 | 690 | end_pc = std::min (sal.end, high); |
6ff0ba5f DE |
691 | else |
692 | end_pc = pc + 1; | |
187808b0 | 693 | num_displayed += dump_insns (gdbarch, uiout, pc, end_pc, |
e47ad6c0 | 694 | how_many, flags, &end_pc); |
6ff0ba5f DE |
695 | pc = end_pc; |
696 | ||
697 | if (how_many >= 0 && num_displayed >= how_many) | |
698 | break; | |
699 | ||
700 | last_symtab = sal.symtab; | |
701 | last_line = sal.line; | |
702 | } | |
6ff0ba5f | 703 | } |
92df71f0 FN |
704 | |
705 | static void | |
187808b0 | 706 | do_assembly_only (struct gdbarch *gdbarch, struct ui_out *uiout, |
92df71f0 | 707 | CORE_ADDR low, CORE_ADDR high, |
9a24775b | 708 | int how_many, gdb_disassembly_flags flags) |
92df71f0 | 709 | { |
10f489e5 | 710 | ui_out_emit_list list_emitter (uiout, "asm_insns"); |
92df71f0 | 711 | |
187808b0 | 712 | dump_insns (gdbarch, uiout, low, high, how_many, flags, NULL); |
92df71f0 FN |
713 | } |
714 | ||
92bf2b80 AC |
715 | /* Initialize the disassemble info struct ready for the specified |
716 | stream. */ | |
717 | ||
a0b31db1 | 718 | static int ATTRIBUTE_PRINTF (2, 3) |
242e8be5 AC |
719 | fprintf_disasm (void *stream, const char *format, ...) |
720 | { | |
721 | va_list args; | |
9a619af0 | 722 | |
242e8be5 | 723 | va_start (args, format); |
9a3c8263 | 724 | vfprintf_filtered ((struct ui_file *) stream, format, args); |
242e8be5 AC |
725 | va_end (args); |
726 | /* Something non -ve. */ | |
727 | return 0; | |
728 | } | |
729 | ||
471b9d15 MR |
730 | /* Combine implicit and user disassembler options and return them |
731 | in a newly-created string. */ | |
732 | ||
733 | static std::string | |
734 | get_all_disassembler_options (struct gdbarch *gdbarch) | |
735 | { | |
736 | const char *implicit = gdbarch_disassembler_options_implicit (gdbarch); | |
737 | const char *options = get_disassembler_options (gdbarch); | |
738 | const char *comma = ","; | |
739 | ||
740 | if (implicit == nullptr) | |
741 | { | |
742 | implicit = ""; | |
743 | comma = ""; | |
744 | } | |
745 | ||
746 | if (options == nullptr) | |
747 | { | |
748 | options = ""; | |
749 | comma = ""; | |
750 | } | |
751 | ||
752 | return string_printf ("%s%s%s", implicit, comma, options); | |
753 | } | |
754 | ||
e47ad6c0 YQ |
755 | gdb_disassembler::gdb_disassembler (struct gdbarch *gdbarch, |
756 | struct ui_file *file, | |
757 | di_read_memory_ftype read_memory_func) | |
d8b49cf0 YQ |
758 | : m_gdbarch (gdbarch), |
759 | m_err_memaddr (0) | |
92df71f0 | 760 | { |
e47ad6c0 YQ |
761 | init_disassemble_info (&m_di, file, fprintf_disasm); |
762 | m_di.flavour = bfd_target_unknown_flavour; | |
763 | m_di.memory_error_func = dis_asm_memory_error; | |
764 | m_di.print_address_func = dis_asm_print_address; | |
2b6fd0d8 AC |
765 | /* NOTE: cagney/2003-04-28: The original code, from the old Insight |
766 | disassembler had a local optomization here. By default it would | |
767 | access the executable file, instead of the target memory (there | |
ce2826aa | 768 | was a growing list of exceptions though). Unfortunately, the |
2b6fd0d8 AC |
769 | heuristic was flawed. Commands like "disassemble &variable" |
770 | didn't work as they relied on the access going to the target. | |
771 | Further, it has been supperseeded by trust-read-only-sections | |
772 | (although that should be superseeded by target_trust..._p()). */ | |
e47ad6c0 YQ |
773 | m_di.read_memory_func = read_memory_func; |
774 | m_di.arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
775 | m_di.mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
776 | m_di.endian = gdbarch_byte_order (gdbarch); | |
777 | m_di.endian_code = gdbarch_byte_order_for_code (gdbarch); | |
778 | m_di.application_data = this; | |
471b9d15 MR |
779 | m_disassembler_options_holder = get_all_disassembler_options (gdbarch); |
780 | if (!m_disassembler_options_holder.empty ()) | |
781 | m_di.disassembler_options = m_disassembler_options_holder.c_str (); | |
e47ad6c0 YQ |
782 | disassemble_init_for_target (&m_di); |
783 | } | |
784 | ||
785 | int | |
786 | gdb_disassembler::print_insn (CORE_ADDR memaddr, | |
787 | int *branch_delay_insns) | |
788 | { | |
d8b49cf0 YQ |
789 | m_err_memaddr = 0; |
790 | ||
e47ad6c0 YQ |
791 | int length = gdbarch_print_insn (arch (), memaddr, &m_di); |
792 | ||
d8b49cf0 YQ |
793 | if (length < 0) |
794 | memory_error (TARGET_XFER_E_IO, m_err_memaddr); | |
795 | ||
e47ad6c0 YQ |
796 | if (branch_delay_insns != NULL) |
797 | { | |
798 | if (m_di.insn_info_valid) | |
799 | *branch_delay_insns = m_di.branch_delay_insns; | |
800 | else | |
801 | *branch_delay_insns = 0; | |
802 | } | |
803 | return length; | |
92bf2b80 AC |
804 | } |
805 | ||
806 | void | |
13274fc3 | 807 | gdb_disassembly (struct gdbarch *gdbarch, struct ui_out *uiout, |
9a24775b | 808 | gdb_disassembly_flags flags, int how_many, |
9c419145 | 809 | CORE_ADDR low, CORE_ADDR high) |
92bf2b80 | 810 | { |
34248c3a | 811 | struct symtab *symtab; |
92bf2b80 | 812 | int nlines = -1; |
92df71f0 | 813 | |
0963b4bd | 814 | /* Assume symtab is valid for whole PC range. */ |
34248c3a | 815 | symtab = find_pc_line_symtab (low); |
92df71f0 | 816 | |
8435453b | 817 | if (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL) |
6ff0ba5f | 818 | nlines = SYMTAB_LINETABLE (symtab)->nitems; |
92df71f0 | 819 | |
6ff0ba5f DE |
820 | if (!(flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
821 | || nlines <= 0) | |
187808b0 | 822 | do_assembly_only (gdbarch, uiout, low, high, how_many, flags); |
92df71f0 | 823 | |
e6158f16 | 824 | else if (flags & DISASSEMBLY_SOURCE) |
187808b0 | 825 | do_mixed_source_and_assembly (gdbarch, uiout, symtab, low, high, |
e47ad6c0 | 826 | how_many, flags); |
6ff0ba5f DE |
827 | |
828 | else if (flags & DISASSEMBLY_SOURCE_DEPRECATED) | |
187808b0 | 829 | do_mixed_source_and_assembly_deprecated (gdbarch, uiout, symtab, |
e47ad6c0 | 830 | low, high, how_many, flags); |
92df71f0 FN |
831 | |
832 | gdb_flush (gdb_stdout); | |
833 | } | |
810ecf9f | 834 | |
92bf2b80 | 835 | /* Print the instruction at address MEMADDR in debugged memory, |
a4642986 MR |
836 | on STREAM. Returns the length of the instruction, in bytes, |
837 | and, if requested, the number of branch delay slot instructions. */ | |
92bf2b80 AC |
838 | |
839 | int | |
13274fc3 UW |
840 | gdb_print_insn (struct gdbarch *gdbarch, CORE_ADDR memaddr, |
841 | struct ui_file *stream, int *branch_delay_insns) | |
92bf2b80 | 842 | { |
a4642986 | 843 | |
e47ad6c0 YQ |
844 | gdb_disassembler di (gdbarch, stream); |
845 | ||
846 | return di.print_insn (memaddr, branch_delay_insns); | |
92bf2b80 | 847 | } |
eda5a4d7 | 848 | |
eda5a4d7 PA |
849 | /* Return the length in bytes of the instruction at address MEMADDR in |
850 | debugged memory. */ | |
851 | ||
852 | int | |
853 | gdb_insn_length (struct gdbarch *gdbarch, CORE_ADDR addr) | |
854 | { | |
d7e74731 | 855 | return gdb_print_insn (gdbarch, addr, &null_stream, NULL); |
eda5a4d7 PA |
856 | } |
857 | ||
858 | /* fprintf-function for gdb_buffered_insn_length. This function is a | |
859 | nop, we don't want to print anything, we just want to compute the | |
860 | length of the insn. */ | |
861 | ||
862 | static int ATTRIBUTE_PRINTF (2, 3) | |
863 | gdb_buffered_insn_length_fprintf (void *stream, const char *format, ...) | |
864 | { | |
865 | return 0; | |
866 | } | |
867 | ||
471b9d15 MR |
868 | /* Initialize a struct disassemble_info for gdb_buffered_insn_length. |
869 | Upon return, *DISASSEMBLER_OPTIONS_HOLDER owns the string pointed | |
870 | to by DI.DISASSEMBLER_OPTIONS. */ | |
eda5a4d7 PA |
871 | |
872 | static void | |
873 | gdb_buffered_insn_length_init_dis (struct gdbarch *gdbarch, | |
874 | struct disassemble_info *di, | |
875 | const gdb_byte *insn, int max_len, | |
471b9d15 MR |
876 | CORE_ADDR addr, |
877 | std::string *disassembler_options_holder) | |
eda5a4d7 PA |
878 | { |
879 | init_disassemble_info (di, NULL, gdb_buffered_insn_length_fprintf); | |
880 | ||
881 | /* init_disassemble_info installs buffer_read_memory, etc. | |
882 | so we don't need to do that here. | |
883 | The cast is necessary until disassemble_info is const-ified. */ | |
884 | di->buffer = (gdb_byte *) insn; | |
885 | di->buffer_length = max_len; | |
886 | di->buffer_vma = addr; | |
887 | ||
888 | di->arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
889 | di->mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
890 | di->endian = gdbarch_byte_order (gdbarch); | |
891 | di->endian_code = gdbarch_byte_order_for_code (gdbarch); | |
892 | ||
471b9d15 MR |
893 | *disassembler_options_holder = get_all_disassembler_options (gdbarch); |
894 | if (!disassembler_options_holder->empty ()) | |
895 | di->disassembler_options = disassembler_options_holder->c_str (); | |
eda5a4d7 PA |
896 | disassemble_init_for_target (di); |
897 | } | |
898 | ||
899 | /* Return the length in bytes of INSN. MAX_LEN is the size of the | |
900 | buffer containing INSN. */ | |
901 | ||
902 | int | |
903 | gdb_buffered_insn_length (struct gdbarch *gdbarch, | |
904 | const gdb_byte *insn, int max_len, CORE_ADDR addr) | |
905 | { | |
906 | struct disassemble_info di; | |
471b9d15 | 907 | std::string disassembler_options_holder; |
eda5a4d7 | 908 | |
471b9d15 MR |
909 | gdb_buffered_insn_length_init_dis (gdbarch, &di, insn, max_len, addr, |
910 | &disassembler_options_holder); | |
eda5a4d7 PA |
911 | |
912 | return gdbarch_print_insn (gdbarch, addr, &di); | |
913 | } | |
65b48a81 PB |
914 | |
915 | char * | |
916 | get_disassembler_options (struct gdbarch *gdbarch) | |
917 | { | |
918 | char **disassembler_options = gdbarch_disassembler_options (gdbarch); | |
919 | if (disassembler_options == NULL) | |
920 | return NULL; | |
921 | return *disassembler_options; | |
922 | } | |
923 | ||
924 | void | |
925 | set_disassembler_options (char *prospective_options) | |
926 | { | |
927 | struct gdbarch *gdbarch = get_current_arch (); | |
928 | char **disassembler_options = gdbarch_disassembler_options (gdbarch); | |
471b9d15 | 929 | const disasm_options_and_args_t *valid_options_and_args; |
65b48a81 PB |
930 | const disasm_options_t *valid_options; |
931 | char *options = remove_whitespace_and_extra_commas (prospective_options); | |
f995bbe8 | 932 | const char *opt; |
65b48a81 PB |
933 | |
934 | /* Allow all architectures, even ones that do not support 'set disassembler', | |
935 | to reset their disassembler options to NULL. */ | |
936 | if (options == NULL) | |
937 | { | |
938 | if (disassembler_options != NULL) | |
939 | { | |
940 | free (*disassembler_options); | |
941 | *disassembler_options = NULL; | |
942 | } | |
943 | return; | |
944 | } | |
945 | ||
471b9d15 MR |
946 | valid_options_and_args = gdbarch_valid_disassembler_options (gdbarch); |
947 | if (valid_options_and_args == NULL) | |
65b48a81 | 948 | { |
81f47ac2 | 949 | fprintf_filtered (gdb_stderr, _("\ |
65b48a81 PB |
950 | 'set disassembler-options ...' is not supported on this architecture.\n")); |
951 | return; | |
952 | } | |
953 | ||
471b9d15 MR |
954 | valid_options = &valid_options_and_args->options; |
955 | ||
65b48a81 PB |
956 | /* Verify we have valid disassembler options. */ |
957 | FOR_EACH_DISASSEMBLER_OPTION (opt, options) | |
958 | { | |
959 | size_t i; | |
960 | for (i = 0; valid_options->name[i] != NULL; i++) | |
471b9d15 MR |
961 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
962 | { | |
963 | size_t len = strlen (valid_options->name[i]); | |
964 | bool found = false; | |
965 | const char *arg; | |
966 | size_t j; | |
967 | ||
968 | if (memcmp (opt, valid_options->name[i], len) != 0) | |
969 | continue; | |
970 | arg = opt + len; | |
971 | for (j = 0; valid_options->arg[i]->values[j] != NULL; j++) | |
972 | if (disassembler_options_cmp | |
973 | (arg, valid_options->arg[i]->values[j]) == 0) | |
974 | { | |
975 | found = true; | |
976 | break; | |
977 | } | |
978 | if (found) | |
979 | break; | |
980 | } | |
981 | else if (disassembler_options_cmp (opt, valid_options->name[i]) == 0) | |
65b48a81 PB |
982 | break; |
983 | if (valid_options->name[i] == NULL) | |
984 | { | |
81f47ac2 | 985 | fprintf_filtered (gdb_stderr, |
65b48a81 PB |
986 | _("Invalid disassembler option value: '%s'.\n"), |
987 | opt); | |
988 | return; | |
989 | } | |
990 | } | |
991 | ||
992 | free (*disassembler_options); | |
993 | *disassembler_options = xstrdup (options); | |
994 | } | |
995 | ||
996 | static void | |
eb4c3f4a | 997 | set_disassembler_options_sfunc (const char *args, int from_tty, |
65b48a81 PB |
998 | struct cmd_list_element *c) |
999 | { | |
1000 | set_disassembler_options (prospective_options); | |
1001 | } | |
1002 | ||
1003 | static void | |
1004 | show_disassembler_options_sfunc (struct ui_file *file, int from_tty, | |
1005 | struct cmd_list_element *c, const char *value) | |
1006 | { | |
1007 | struct gdbarch *gdbarch = get_current_arch (); | |
471b9d15 MR |
1008 | const disasm_options_and_args_t *valid_options_and_args; |
1009 | const disasm_option_arg_t *valid_args; | |
65b48a81 PB |
1010 | const disasm_options_t *valid_options; |
1011 | ||
1012 | const char *options = get_disassembler_options (gdbarch); | |
1013 | if (options == NULL) | |
1014 | options = ""; | |
1015 | ||
f4bab6ff | 1016 | fprintf_filtered (file, _("The current disassembler options are '%s'\n\n"), |
65b48a81 PB |
1017 | options); |
1018 | ||
471b9d15 | 1019 | valid_options_and_args = gdbarch_valid_disassembler_options (gdbarch); |
65b48a81 | 1020 | |
471b9d15 | 1021 | if (valid_options_and_args == NULL) |
f4bab6ff TT |
1022 | { |
1023 | fputs_filtered (_("There are no disassembler options available " | |
1024 | "for this architecture.\n"), | |
1025 | file); | |
1026 | return; | |
1027 | } | |
65b48a81 | 1028 | |
471b9d15 MR |
1029 | valid_options = &valid_options_and_args->options; |
1030 | ||
f4bab6ff | 1031 | fprintf_filtered (file, _("\ |
65b48a81 | 1032 | The following disassembler options are supported for use with the\n\ |
f4bab6ff | 1033 | 'set disassembler-options OPTION [,OPTION]...' command:\n")); |
65b48a81 PB |
1034 | |
1035 | if (valid_options->description != NULL) | |
1036 | { | |
1037 | size_t i, max_len = 0; | |
1038 | ||
471b9d15 MR |
1039 | fprintf_filtered (file, "\n"); |
1040 | ||
65b48a81 PB |
1041 | /* Compute the length of the longest option name. */ |
1042 | for (i = 0; valid_options->name[i] != NULL; i++) | |
1043 | { | |
1044 | size_t len = strlen (valid_options->name[i]); | |
471b9d15 MR |
1045 | |
1046 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) | |
1047 | len += strlen (valid_options->arg[i]->name); | |
65b48a81 PB |
1048 | if (max_len < len) |
1049 | max_len = len; | |
1050 | } | |
1051 | ||
1052 | for (i = 0, max_len++; valid_options->name[i] != NULL; i++) | |
1053 | { | |
1054 | fprintf_filtered (file, " %s", valid_options->name[i]); | |
471b9d15 MR |
1055 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
1056 | fprintf_filtered (file, "%s", valid_options->arg[i]->name); | |
65b48a81 | 1057 | if (valid_options->description[i] != NULL) |
471b9d15 MR |
1058 | { |
1059 | size_t len = strlen (valid_options->name[i]); | |
1060 | ||
1061 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) | |
1062 | len += strlen (valid_options->arg[i]->name); | |
1063 | fprintf_filtered (file, "%*c %s", (int) (max_len - len), ' ', | |
1064 | valid_options->description[i]); | |
1065 | } | |
65b48a81 PB |
1066 | fprintf_filtered (file, "\n"); |
1067 | } | |
1068 | } | |
1069 | else | |
1070 | { | |
1071 | size_t i; | |
1072 | fprintf_filtered (file, " "); | |
1073 | for (i = 0; valid_options->name[i] != NULL; i++) | |
1074 | { | |
1075 | fprintf_filtered (file, "%s", valid_options->name[i]); | |
471b9d15 MR |
1076 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
1077 | fprintf_filtered (file, "%s", valid_options->arg[i]->name); | |
65b48a81 PB |
1078 | if (valid_options->name[i + 1] != NULL) |
1079 | fprintf_filtered (file, ", "); | |
1080 | wrap_here (" "); | |
1081 | } | |
1082 | fprintf_filtered (file, "\n"); | |
1083 | } | |
471b9d15 MR |
1084 | |
1085 | valid_args = valid_options_and_args->args; | |
1086 | if (valid_args != NULL) | |
1087 | { | |
1088 | size_t i, j; | |
1089 | ||
1090 | for (i = 0; valid_args[i].name != NULL; i++) | |
1091 | { | |
1092 | fprintf_filtered (file, _("\n\ | |
1093 | For the options above, the following values are supported for \"%s\":\n "), | |
1094 | valid_args[i].name); | |
1095 | for (j = 0; valid_args[i].values[j] != NULL; j++) | |
1096 | { | |
1097 | fprintf_filtered (file, " %s", valid_args[i].values[j]); | |
1098 | wrap_here (" "); | |
1099 | } | |
1100 | fprintf_filtered (file, "\n"); | |
1101 | } | |
1102 | } | |
65b48a81 PB |
1103 | } |
1104 | ||
1105 | /* A completion function for "set disassembler". */ | |
1106 | ||
eb3ff9a5 | 1107 | static void |
65b48a81 | 1108 | disassembler_options_completer (struct cmd_list_element *ignore, |
eb3ff9a5 | 1109 | completion_tracker &tracker, |
65b48a81 PB |
1110 | const char *text, const char *word) |
1111 | { | |
1112 | struct gdbarch *gdbarch = get_current_arch (); | |
471b9d15 MR |
1113 | const disasm_options_and_args_t *opts_and_args |
1114 | = gdbarch_valid_disassembler_options (gdbarch); | |
65b48a81 | 1115 | |
471b9d15 | 1116 | if (opts_and_args != NULL) |
65b48a81 | 1117 | { |
471b9d15 MR |
1118 | const disasm_options_t *opts = &opts_and_args->options; |
1119 | ||
65b48a81 PB |
1120 | /* Only attempt to complete on the last option text. */ |
1121 | const char *separator = strrchr (text, ','); | |
1122 | if (separator != NULL) | |
1123 | text = separator + 1; | |
f1735a53 | 1124 | text = skip_spaces (text); |
eb3ff9a5 | 1125 | complete_on_enum (tracker, opts->name, text, word); |
65b48a81 | 1126 | } |
65b48a81 PB |
1127 | } |
1128 | ||
1129 | ||
1130 | /* Initialization code. */ | |
1131 | ||
65b48a81 PB |
1132 | void |
1133 | _initialize_disasm (void) | |
1134 | { | |
1135 | struct cmd_list_element *cmd; | |
1136 | ||
1137 | /* Add the command that controls the disassembler options. */ | |
1138 | cmd = add_setshow_string_noescape_cmd ("disassembler-options", no_class, | |
1139 | &prospective_options, _("\ | |
1140 | Set the disassembler options.\n\ | |
7c9ee61b | 1141 | Usage: set disassembler-options OPTION [,OPTION]...\n\n\ |
89549d7f | 1142 | See: 'show disassembler-options' for valid option values."), _("\ |
65b48a81 PB |
1143 | Show the disassembler options."), NULL, |
1144 | set_disassembler_options_sfunc, | |
1145 | show_disassembler_options_sfunc, | |
1146 | &setlist, &showlist); | |
1147 | set_cmd_completer (cmd, disassembler_options_completer); | |
1148 | } |