Commit | Line | Data |
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92df71f0 | 1 | /* Disassemble support for GDB. |
1bac305b | 2 | |
61baf725 | 3 | Copyright (C) 2000-2017 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" |
92df71f0 FN |
22 | #include "target.h" |
23 | #include "value.h" | |
24 | #include "ui-out.h" | |
92df71f0 | 25 | #include "disasm.h" |
810ecf9f | 26 | #include "gdbcore.h" |
65b48a81 | 27 | #include "gdbcmd.h" |
a89aa300 | 28 | #include "dis-asm.h" |
6ff0ba5f | 29 | #include "source.h" |
65b48a81 | 30 | #include "safe-ctype.h" |
325fac50 | 31 | #include <algorithm> |
92df71f0 FN |
32 | |
33 | /* Disassemble functions. | |
34 | FIXME: We should get rid of all the duplicate code in gdb that does | |
0963b4bd | 35 | the same thing: disassemble_command() and the gdbtk variation. */ |
92df71f0 | 36 | |
65b48a81 PB |
37 | /* This variable is used to hold the prospective disassembler_options value |
38 | which is set by the "set disassembler_options" command. */ | |
39 | static char *prospective_options = NULL; | |
40 | ||
6ff0ba5f DE |
41 | /* This structure is used to store line number information for the |
42 | deprecated /m option. | |
92df71f0 FN |
43 | We need a different sort of line table from the normal one cuz we can't |
44 | depend upon implicit line-end pc's for lines to do the | |
45 | reordering in this function. */ | |
46 | ||
6ff0ba5f | 47 | struct deprecated_dis_line_entry |
92df71f0 FN |
48 | { |
49 | int line; | |
50 | CORE_ADDR start_pc; | |
51 | CORE_ADDR end_pc; | |
52 | }; | |
53 | ||
6ff0ba5f DE |
54 | /* This Structure is used to store line number information. |
55 | We need a different sort of line table from the normal one cuz we can't | |
56 | depend upon implicit line-end pc's for lines to do the | |
57 | reordering in this function. */ | |
58 | ||
59 | struct dis_line_entry | |
60 | { | |
61 | struct symtab *symtab; | |
62 | int line; | |
63 | }; | |
64 | ||
65 | /* Hash function for dis_line_entry. */ | |
66 | ||
67 | static hashval_t | |
68 | hash_dis_line_entry (const void *item) | |
69 | { | |
9a3c8263 | 70 | const struct dis_line_entry *dle = (const struct dis_line_entry *) item; |
6ff0ba5f DE |
71 | |
72 | return htab_hash_pointer (dle->symtab) + dle->line; | |
73 | } | |
74 | ||
75 | /* Equal function for dis_line_entry. */ | |
76 | ||
77 | static int | |
78 | eq_dis_line_entry (const void *item_lhs, const void *item_rhs) | |
79 | { | |
9a3c8263 SM |
80 | const struct dis_line_entry *lhs = (const struct dis_line_entry *) item_lhs; |
81 | const struct dis_line_entry *rhs = (const struct dis_line_entry *) item_rhs; | |
6ff0ba5f DE |
82 | |
83 | return (lhs->symtab == rhs->symtab | |
84 | && lhs->line == rhs->line); | |
85 | } | |
86 | ||
87 | /* Create the table to manage lines for mixed source/disassembly. */ | |
88 | ||
89 | static htab_t | |
90 | allocate_dis_line_table (void) | |
91 | { | |
92 | return htab_create_alloc (41, | |
93 | hash_dis_line_entry, eq_dis_line_entry, | |
94 | xfree, xcalloc, xfree); | |
95 | } | |
96 | ||
4a099de2 | 97 | /* Add a new dis_line_entry containing SYMTAB and LINE to TABLE. */ |
6ff0ba5f DE |
98 | |
99 | static void | |
4a099de2 | 100 | add_dis_line_entry (htab_t table, struct symtab *symtab, int line) |
6ff0ba5f DE |
101 | { |
102 | void **slot; | |
103 | struct dis_line_entry dle, *dlep; | |
104 | ||
105 | dle.symtab = symtab; | |
106 | dle.line = line; | |
107 | slot = htab_find_slot (table, &dle, INSERT); | |
108 | if (*slot == NULL) | |
109 | { | |
110 | dlep = XNEW (struct dis_line_entry); | |
111 | dlep->symtab = symtab; | |
112 | dlep->line = line; | |
113 | *slot = dlep; | |
114 | } | |
115 | } | |
116 | ||
117 | /* Return non-zero if SYMTAB, LINE are in TABLE. */ | |
118 | ||
119 | static int | |
120 | line_has_code_p (htab_t table, struct symtab *symtab, int line) | |
121 | { | |
122 | struct dis_line_entry dle; | |
123 | ||
124 | dle.symtab = symtab; | |
125 | dle.line = line; | |
126 | return htab_find (table, &dle) != NULL; | |
127 | } | |
128 | ||
e47ad6c0 YQ |
129 | /* Wrapper of target_read_code. */ |
130 | ||
131 | int | |
132 | gdb_disassembler::dis_asm_read_memory (bfd_vma memaddr, gdb_byte *myaddr, | |
133 | unsigned int len, | |
134 | struct disassemble_info *info) | |
810ecf9f | 135 | { |
283f7163 | 136 | return target_read_code (memaddr, myaddr, len); |
810ecf9f AC |
137 | } |
138 | ||
e47ad6c0 YQ |
139 | /* Wrapper of memory_error. */ |
140 | ||
141 | void | |
142 | gdb_disassembler::dis_asm_memory_error (int err, bfd_vma memaddr, | |
143 | struct disassemble_info *info) | |
810ecf9f | 144 | { |
d8b49cf0 YQ |
145 | gdb_disassembler *self |
146 | = static_cast<gdb_disassembler *>(info->application_data); | |
147 | ||
148 | self->m_err_memaddr = memaddr; | |
810ecf9f AC |
149 | } |
150 | ||
e47ad6c0 YQ |
151 | /* Wrapper of print_address. */ |
152 | ||
153 | void | |
154 | gdb_disassembler::dis_asm_print_address (bfd_vma addr, | |
155 | struct disassemble_info *info) | |
810ecf9f | 156 | { |
e47ad6c0 YQ |
157 | gdb_disassembler *self |
158 | = static_cast<gdb_disassembler *>(info->application_data); | |
9a619af0 | 159 | |
e47ad6c0 | 160 | print_address (self->arch (), addr, self->stream ()); |
810ecf9f AC |
161 | } |
162 | ||
92df71f0 | 163 | static int |
bde58177 | 164 | compare_lines (const void *mle1p, const void *mle2p) |
92df71f0 | 165 | { |
6ff0ba5f | 166 | struct deprecated_dis_line_entry *mle1, *mle2; |
92df71f0 FN |
167 | int val; |
168 | ||
6ff0ba5f DE |
169 | mle1 = (struct deprecated_dis_line_entry *) mle1p; |
170 | mle2 = (struct deprecated_dis_line_entry *) mle2p; | |
92df71f0 | 171 | |
9011945e AB |
172 | /* End of sequence markers have a line number of 0 but don't want to |
173 | be sorted to the head of the list, instead sort by PC. */ | |
174 | if (mle1->line == 0 || mle2->line == 0) | |
175 | { | |
176 | val = mle1->start_pc - mle2->start_pc; | |
177 | if (val == 0) | |
178 | val = mle1->line - mle2->line; | |
179 | } | |
180 | else | |
181 | { | |
182 | val = mle1->line - mle2->line; | |
183 | if (val == 0) | |
184 | val = mle1->start_pc - mle2->start_pc; | |
185 | } | |
186 | return val; | |
92df71f0 FN |
187 | } |
188 | ||
a50a4026 | 189 | /* See disasm.h. */ |
af70908d | 190 | |
a50a4026 | 191 | int |
8b172ce7 PA |
192 | gdb_pretty_print_disassembler::pretty_print_insn (struct ui_out *uiout, |
193 | const struct disasm_insn *insn, | |
194 | int flags) | |
92df71f0 | 195 | { |
92df71f0 FN |
196 | /* parts of the symbolic representation of the address */ |
197 | int unmapped; | |
92df71f0 FN |
198 | int offset; |
199 | int line; | |
af70908d | 200 | int size; |
3b31d625 | 201 | struct cleanup *ui_out_chain; |
af70908d MM |
202 | char *filename = NULL; |
203 | char *name = NULL; | |
a50a4026 | 204 | CORE_ADDR pc; |
8b172ce7 | 205 | struct gdbarch *gdbarch = arch (); |
af70908d MM |
206 | |
207 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
a50a4026 MM |
208 | pc = insn->addr; |
209 | ||
210 | if (insn->number != 0) | |
211 | { | |
112e8700 SM |
212 | uiout->field_fmt ("insn-number", "%u", insn->number); |
213 | uiout->text ("\t"); | |
a50a4026 | 214 | } |
92df71f0 | 215 | |
a50a4026 MM |
216 | if ((flags & DISASSEMBLY_SPECULATIVE) != 0) |
217 | { | |
218 | if (insn->is_speculative) | |
219 | { | |
112e8700 | 220 | uiout->field_string ("is-speculative", "?"); |
a50a4026 MM |
221 | |
222 | /* The speculative execution indication overwrites the first | |
223 | character of the PC prefix. | |
224 | We assume a PC prefix length of 3 characters. */ | |
225 | if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
112e8700 | 226 | uiout->text (pc_prefix (pc) + 1); |
a50a4026 | 227 | else |
112e8700 | 228 | uiout->text (" "); |
a50a4026 MM |
229 | } |
230 | else if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
112e8700 | 231 | uiout->text (pc_prefix (pc)); |
a50a4026 | 232 | else |
112e8700 | 233 | uiout->text (" "); |
a50a4026 MM |
234 | } |
235 | else if ((flags & DISASSEMBLY_OMIT_PC) == 0) | |
112e8700 SM |
236 | uiout->text (pc_prefix (pc)); |
237 | uiout->field_core_addr ("address", gdbarch, pc); | |
af70908d MM |
238 | |
239 | if (!build_address_symbolic (gdbarch, pc, 0, &name, &offset, &filename, | |
240 | &line, &unmapped)) | |
92df71f0 | 241 | { |
af70908d MM |
242 | /* We don't care now about line, filename and unmapped. But we might in |
243 | the future. */ | |
112e8700 | 244 | uiout->text (" <"); |
af70908d | 245 | if ((flags & DISASSEMBLY_OMIT_FNAME) == 0) |
112e8700 SM |
246 | uiout->field_string ("func-name", name); |
247 | uiout->text ("+"); | |
248 | uiout->field_int ("offset", offset); | |
249 | uiout->text (">:\t"); | |
af70908d MM |
250 | } |
251 | else | |
112e8700 | 252 | uiout->text (":\t"); |
1211bce3 | 253 | |
af70908d MM |
254 | if (filename != NULL) |
255 | xfree (filename); | |
256 | if (name != NULL) | |
257 | xfree (name); | |
258 | ||
8b172ce7 | 259 | m_insn_stb.clear (); |
187808b0 | 260 | |
af70908d MM |
261 | if (flags & DISASSEMBLY_RAW_INSN) |
262 | { | |
263 | CORE_ADDR end_pc; | |
264 | bfd_byte data; | |
265 | int err; | |
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. */ | |
8b172ce7 | 270 | m_opcode_stb.clear (); |
946287b7 | 271 | |
8b172ce7 | 272 | size = m_di.print_insn (pc); |
af70908d | 273 | end_pc = pc + size; |
92df71f0 | 274 | |
af70908d | 275 | for (;pc < end_pc; ++pc) |
92df71f0 | 276 | { |
187808b0 | 277 | read_code (pc, &data, 1); |
8b172ce7 | 278 | m_opcode_stb.printf ("%s%02x", spacer, (unsigned) data); |
af70908d | 279 | spacer = " "; |
92df71f0 | 280 | } |
af70908d | 281 | |
8b172ce7 | 282 | uiout->field_stream ("opcodes", m_opcode_stb); |
112e8700 | 283 | uiout->text ("\t"); |
af70908d MM |
284 | } |
285 | else | |
8b172ce7 | 286 | size = m_di.print_insn (pc); |
af70908d | 287 | |
8b172ce7 | 288 | uiout->field_stream ("inst", m_insn_stb); |
af70908d | 289 | do_cleanups (ui_out_chain); |
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, | |
298 | int how_many, int 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, |
e47ad6c0 | 341 | int how_many, int 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; |
3b31d625 | 353 | struct cleanup *ui_out_chain; |
0127c0d3 JJ |
354 | struct cleanup *ui_out_tuple_chain = make_cleanup (null_cleanup, 0); |
355 | struct cleanup *ui_out_list_chain = make_cleanup (null_cleanup, 0); | |
92df71f0 | 356 | |
6ff0ba5f DE |
357 | gdb_assert (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL); |
358 | ||
359 | nlines = SYMTAB_LINETABLE (symtab)->nitems; | |
360 | le = SYMTAB_LINETABLE (symtab)->item; | |
361 | ||
4cd29721 MM |
362 | if (flags & DISASSEMBLY_FILENAME) |
363 | psl_flags |= PRINT_SOURCE_LINES_FILENAME; | |
364 | ||
6ff0ba5f DE |
365 | mle = (struct deprecated_dis_line_entry *) |
366 | alloca (nlines * sizeof (struct deprecated_dis_line_entry)); | |
92df71f0 FN |
367 | |
368 | /* Copy linetable entries for this function into our data | |
369 | structure, creating end_pc's and setting out_of_order as | |
370 | appropriate. */ | |
371 | ||
372 | /* First, skip all the preceding functions. */ | |
373 | ||
374 | for (i = 0; i < nlines - 1 && le[i].pc < low; i++); | |
375 | ||
376 | /* Now, copy all entries before the end of this function. */ | |
377 | ||
378 | for (; i < nlines - 1 && le[i].pc < high; i++) | |
379 | { | |
380 | if (le[i].line == le[i + 1].line && le[i].pc == le[i + 1].pc) | |
0963b4bd | 381 | continue; /* Ignore duplicates. */ |
92df71f0 FN |
382 | |
383 | /* Skip any end-of-function markers. */ | |
384 | if (le[i].line == 0) | |
385 | continue; | |
386 | ||
387 | mle[newlines].line = le[i].line; | |
388 | if (le[i].line > le[i + 1].line) | |
389 | out_of_order = 1; | |
390 | mle[newlines].start_pc = le[i].pc; | |
391 | mle[newlines].end_pc = le[i + 1].pc; | |
392 | newlines++; | |
393 | } | |
394 | ||
395 | /* If we're on the last line, and it's part of the function, | |
396 | then we need to get the end pc in a special way. */ | |
397 | ||
398 | if (i == nlines - 1 && le[i].pc < high) | |
399 | { | |
400 | mle[newlines].line = le[i].line; | |
401 | mle[newlines].start_pc = le[i].pc; | |
402 | sal = find_pc_line (le[i].pc, 0); | |
403 | mle[newlines].end_pc = sal.end; | |
404 | newlines++; | |
405 | } | |
406 | ||
6ff0ba5f | 407 | /* Now, sort mle by line #s (and, then by addresses within lines). */ |
92df71f0 FN |
408 | |
409 | if (out_of_order) | |
6ff0ba5f DE |
410 | qsort (mle, newlines, sizeof (struct deprecated_dis_line_entry), |
411 | compare_lines); | |
92df71f0 FN |
412 | |
413 | /* Now, for each line entry, emit the specified lines (unless | |
414 | they have been emitted before), followed by the assembly code | |
415 | for that line. */ | |
416 | ||
3b31d625 | 417 | ui_out_chain = make_cleanup_ui_out_list_begin_end (uiout, "asm_insns"); |
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 | { | |
3b31d625 EZ |
429 | ui_out_tuple_chain |
430 | = make_cleanup_ui_out_tuple_begin_end (uiout, | |
431 | "src_and_asm_line"); | |
4cd29721 | 432 | print_source_lines (symtab, next_line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
433 | } |
434 | else | |
435 | { | |
0963b4bd | 436 | /* Several source lines w/o asm instructions associated. */ |
92df71f0 FN |
437 | for (; next_line < mle[i].line; next_line++) |
438 | { | |
3b31d625 EZ |
439 | struct cleanup *ui_out_list_chain_line; |
440 | struct cleanup *ui_out_tuple_chain_line; | |
441 | ||
442 | ui_out_tuple_chain_line | |
443 | = make_cleanup_ui_out_tuple_begin_end (uiout, | |
444 | "src_and_asm_line"); | |
92df71f0 | 445 | print_source_lines (symtab, next_line, next_line + 1, |
4cd29721 | 446 | psl_flags); |
3b31d625 EZ |
447 | ui_out_list_chain_line |
448 | = make_cleanup_ui_out_list_begin_end (uiout, | |
449 | "line_asm_insn"); | |
450 | do_cleanups (ui_out_list_chain_line); | |
451 | do_cleanups (ui_out_tuple_chain_line); | |
92df71f0 FN |
452 | } |
453 | /* Print the last line and leave list open for | |
0963b4bd | 454 | asm instructions to be added. */ |
3b31d625 EZ |
455 | ui_out_tuple_chain |
456 | = make_cleanup_ui_out_tuple_begin_end (uiout, | |
457 | "src_and_asm_line"); | |
4cd29721 | 458 | print_source_lines (symtab, next_line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
459 | } |
460 | } | |
461 | else | |
462 | { | |
3b31d625 | 463 | ui_out_tuple_chain |
3e43a32a MS |
464 | = make_cleanup_ui_out_tuple_begin_end (uiout, |
465 | "src_and_asm_line"); | |
4cd29721 | 466 | print_source_lines (symtab, mle[i].line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
467 | } |
468 | ||
469 | next_line = mle[i].line + 1; | |
3b31d625 EZ |
470 | ui_out_list_chain |
471 | = make_cleanup_ui_out_list_begin_end (uiout, "line_asm_insn"); | |
92df71f0 FN |
472 | } |
473 | ||
187808b0 | 474 | num_displayed += dump_insns (gdbarch, uiout, |
13274fc3 | 475 | mle[i].start_pc, mle[i].end_pc, |
e47ad6c0 | 476 | how_many, flags, NULL); |
0127c0d3 JJ |
477 | |
478 | /* When we've reached the end of the mle array, or we've seen the last | |
479 | assembly range for this source line, close out the list/tuple. */ | |
480 | if (i == (newlines - 1) || mle[i + 1].line > mle[i].line) | |
92df71f0 | 481 | { |
3b31d625 EZ |
482 | do_cleanups (ui_out_list_chain); |
483 | do_cleanups (ui_out_tuple_chain); | |
0127c0d3 JJ |
484 | ui_out_tuple_chain = make_cleanup (null_cleanup, 0); |
485 | ui_out_list_chain = make_cleanup (null_cleanup, 0); | |
112e8700 | 486 | uiout->text ("\n"); |
92df71f0 | 487 | } |
0127c0d3 JJ |
488 | if (how_many >= 0 && num_displayed >= how_many) |
489 | break; | |
92df71f0 | 490 | } |
3b31d625 | 491 | do_cleanups (ui_out_chain); |
92df71f0 FN |
492 | } |
493 | ||
6ff0ba5f DE |
494 | /* The idea here is to present a source-O-centric view of a |
495 | function to the user. This means that things are presented | |
496 | in source order, with (possibly) out of order assembly | |
497 | immediately following. */ | |
498 | ||
499 | static void | |
e47ad6c0 YQ |
500 | do_mixed_source_and_assembly (struct gdbarch *gdbarch, |
501 | struct ui_out *uiout, | |
6ff0ba5f DE |
502 | struct symtab *main_symtab, |
503 | CORE_ADDR low, CORE_ADDR high, | |
e47ad6c0 | 504 | int how_many, int flags) |
6ff0ba5f | 505 | { |
6ff0ba5f | 506 | const struct linetable_entry *le, *first_le; |
6ff0ba5f | 507 | int i, nlines; |
6ff0ba5f | 508 | int num_displayed = 0; |
8d297bbf | 509 | print_source_lines_flags psl_flags = 0; |
6ff0ba5f DE |
510 | struct cleanup *ui_out_chain; |
511 | struct cleanup *ui_out_tuple_chain; | |
512 | struct cleanup *ui_out_list_chain; | |
513 | CORE_ADDR pc; | |
514 | struct symtab *last_symtab; | |
515 | int last_line; | |
6ff0ba5f DE |
516 | |
517 | gdb_assert (main_symtab != NULL && SYMTAB_LINETABLE (main_symtab) != NULL); | |
518 | ||
519 | /* First pass: collect the list of all source files and lines. | |
520 | We do this so that we can only print lines containing code once. | |
521 | We try to print the source text leading up to the next instruction, | |
522 | but if that text is for code that will be disassembled later, then | |
523 | we'll want to defer printing it until later with its associated code. */ | |
524 | ||
fc4007c9 | 525 | htab_up dis_line_table (allocate_dis_line_table ()); |
6ff0ba5f DE |
526 | |
527 | pc = low; | |
528 | ||
529 | /* The prologue may be empty, but there may still be a line number entry | |
530 | for the opening brace which is distinct from the first line of code. | |
531 | If the prologue has been eliminated find_pc_line may return the source | |
532 | line after the opening brace. We still want to print this opening brace. | |
533 | first_le is used to implement this. */ | |
534 | ||
535 | nlines = SYMTAB_LINETABLE (main_symtab)->nitems; | |
536 | le = SYMTAB_LINETABLE (main_symtab)->item; | |
537 | first_le = NULL; | |
538 | ||
539 | /* Skip all the preceding functions. */ | |
540 | for (i = 0; i < nlines && le[i].pc < low; i++) | |
541 | continue; | |
542 | ||
543 | if (i < nlines && le[i].pc < high) | |
544 | first_le = &le[i]; | |
545 | ||
546 | /* Add lines for every pc value. */ | |
547 | while (pc < high) | |
548 | { | |
549 | struct symtab_and_line sal; | |
550 | int length; | |
551 | ||
552 | sal = find_pc_line (pc, 0); | |
553 | length = gdb_insn_length (gdbarch, pc); | |
554 | pc += length; | |
555 | ||
556 | if (sal.symtab != NULL) | |
fc4007c9 | 557 | add_dis_line_entry (dis_line_table.get (), sal.symtab, sal.line); |
6ff0ba5f DE |
558 | } |
559 | ||
560 | /* Second pass: print the disassembly. | |
561 | ||
562 | Output format, from an MI perspective: | |
563 | The result is a ui_out list, field name "asm_insns", where elements have | |
564 | name "src_and_asm_line". | |
565 | Each element is a tuple of source line specs (field names line, file, | |
566 | fullname), and field "line_asm_insn" which contains the disassembly. | |
567 | Field "line_asm_insn" is a list of tuples: address, func-name, offset, | |
568 | opcodes, inst. | |
569 | ||
570 | CLI output works on top of this because MI ignores ui_out_text output, | |
571 | which is where we put file name and source line contents output. | |
572 | ||
573 | Cleanup usage: | |
6ff0ba5f DE |
574 | ui_out_chain |
575 | Handles the outer "asm_insns" list. | |
576 | ui_out_tuple_chain | |
577 | The tuples for each group of consecutive disassemblies. | |
578 | ui_out_list_chain | |
579 | List of consecutive source lines or disassembled insns. */ | |
580 | ||
581 | if (flags & DISASSEMBLY_FILENAME) | |
582 | psl_flags |= PRINT_SOURCE_LINES_FILENAME; | |
583 | ||
584 | ui_out_chain = make_cleanup_ui_out_list_begin_end (uiout, "asm_insns"); | |
585 | ||
586 | ui_out_tuple_chain = NULL; | |
587 | ui_out_list_chain = NULL; | |
588 | ||
589 | last_symtab = NULL; | |
590 | last_line = 0; | |
591 | pc = low; | |
592 | ||
593 | while (pc < high) | |
594 | { | |
6ff0ba5f DE |
595 | struct symtab_and_line sal; |
596 | CORE_ADDR end_pc; | |
597 | int start_preceding_line_to_display = 0; | |
598 | int end_preceding_line_to_display = 0; | |
599 | int new_source_line = 0; | |
600 | ||
601 | sal = find_pc_line (pc, 0); | |
602 | ||
603 | if (sal.symtab != last_symtab) | |
604 | { | |
605 | /* New source file. */ | |
606 | new_source_line = 1; | |
607 | ||
608 | /* If this is the first line of output, check for any preceding | |
609 | lines. */ | |
610 | if (last_line == 0 | |
611 | && first_le != NULL | |
612 | && first_le->line < sal.line) | |
613 | { | |
614 | start_preceding_line_to_display = first_le->line; | |
615 | end_preceding_line_to_display = sal.line; | |
616 | } | |
617 | } | |
618 | else | |
619 | { | |
620 | /* Same source file as last time. */ | |
621 | if (sal.symtab != NULL) | |
622 | { | |
623 | if (sal.line > last_line + 1 && last_line != 0) | |
624 | { | |
625 | int l; | |
626 | ||
627 | /* Several preceding source lines. Print the trailing ones | |
628 | not associated with code that we'll print later. */ | |
629 | for (l = sal.line - 1; l > last_line; --l) | |
630 | { | |
fc4007c9 TT |
631 | if (line_has_code_p (dis_line_table.get (), |
632 | sal.symtab, l)) | |
6ff0ba5f DE |
633 | break; |
634 | } | |
635 | if (l < sal.line - 1) | |
636 | { | |
637 | start_preceding_line_to_display = l + 1; | |
638 | end_preceding_line_to_display = sal.line; | |
639 | } | |
640 | } | |
641 | if (sal.line != last_line) | |
642 | new_source_line = 1; | |
643 | else | |
644 | { | |
645 | /* Same source line as last time. This can happen, depending | |
646 | on the debug info. */ | |
647 | } | |
648 | } | |
649 | } | |
650 | ||
651 | if (new_source_line) | |
652 | { | |
653 | /* Skip the newline if this is the first instruction. */ | |
654 | if (pc > low) | |
112e8700 | 655 | uiout->text ("\n"); |
6ff0ba5f DE |
656 | if (ui_out_tuple_chain != NULL) |
657 | { | |
658 | gdb_assert (ui_out_list_chain != NULL); | |
659 | do_cleanups (ui_out_list_chain); | |
660 | do_cleanups (ui_out_tuple_chain); | |
661 | } | |
662 | if (sal.symtab != last_symtab | |
663 | && !(flags & DISASSEMBLY_FILENAME)) | |
664 | { | |
665 | /* Remember MI ignores ui_out_text. | |
666 | We don't have to do anything here for MI because MI | |
667 | output includes the source specs for each line. */ | |
668 | if (sal.symtab != NULL) | |
669 | { | |
112e8700 | 670 | uiout->text (symtab_to_filename_for_display (sal.symtab)); |
6ff0ba5f DE |
671 | } |
672 | else | |
112e8700 SM |
673 | uiout->text ("unknown"); |
674 | uiout->text (":\n"); | |
6ff0ba5f DE |
675 | } |
676 | if (start_preceding_line_to_display > 0) | |
677 | { | |
678 | /* Several source lines w/o asm instructions associated. | |
679 | We need to preserve the structure of the output, so output | |
680 | a bunch of line tuples with no asm entries. */ | |
681 | int l; | |
682 | struct cleanup *ui_out_list_chain_line; | |
683 | struct cleanup *ui_out_tuple_chain_line; | |
684 | ||
685 | gdb_assert (sal.symtab != NULL); | |
686 | for (l = start_preceding_line_to_display; | |
687 | l < end_preceding_line_to_display; | |
688 | ++l) | |
689 | { | |
690 | ui_out_tuple_chain_line | |
691 | = make_cleanup_ui_out_tuple_begin_end (uiout, | |
692 | "src_and_asm_line"); | |
693 | print_source_lines (sal.symtab, l, l + 1, psl_flags); | |
694 | ui_out_list_chain_line | |
695 | = make_cleanup_ui_out_list_begin_end (uiout, | |
696 | "line_asm_insn"); | |
697 | do_cleanups (ui_out_list_chain_line); | |
698 | do_cleanups (ui_out_tuple_chain_line); | |
699 | } | |
700 | } | |
701 | ui_out_tuple_chain | |
702 | = make_cleanup_ui_out_tuple_begin_end (uiout, "src_and_asm_line"); | |
703 | if (sal.symtab != NULL) | |
704 | print_source_lines (sal.symtab, sal.line, sal.line + 1, psl_flags); | |
705 | else | |
112e8700 | 706 | uiout->text (_("--- no source info for this pc ---\n")); |
6ff0ba5f DE |
707 | ui_out_list_chain |
708 | = make_cleanup_ui_out_list_begin_end (uiout, "line_asm_insn"); | |
709 | } | |
710 | else | |
711 | { | |
712 | /* Here we're appending instructions to an existing line. | |
713 | By construction the very first insn will have a symtab | |
714 | and follow the new_source_line path above. */ | |
715 | gdb_assert (ui_out_tuple_chain != NULL); | |
716 | gdb_assert (ui_out_list_chain != NULL); | |
717 | } | |
718 | ||
719 | if (sal.end != 0) | |
325fac50 | 720 | end_pc = std::min (sal.end, high); |
6ff0ba5f DE |
721 | else |
722 | end_pc = pc + 1; | |
187808b0 | 723 | num_displayed += dump_insns (gdbarch, uiout, pc, end_pc, |
e47ad6c0 | 724 | how_many, flags, &end_pc); |
6ff0ba5f DE |
725 | pc = end_pc; |
726 | ||
727 | if (how_many >= 0 && num_displayed >= how_many) | |
728 | break; | |
729 | ||
730 | last_symtab = sal.symtab; | |
731 | last_line = sal.line; | |
732 | } | |
733 | ||
734 | do_cleanups (ui_out_chain); | |
6ff0ba5f | 735 | } |
92df71f0 FN |
736 | |
737 | static void | |
187808b0 | 738 | do_assembly_only (struct gdbarch *gdbarch, struct ui_out *uiout, |
92df71f0 | 739 | CORE_ADDR low, CORE_ADDR high, |
e47ad6c0 | 740 | int how_many, int flags) |
92df71f0 | 741 | { |
3b31d625 | 742 | struct cleanup *ui_out_chain; |
92df71f0 | 743 | |
3b31d625 | 744 | ui_out_chain = make_cleanup_ui_out_list_begin_end (uiout, "asm_insns"); |
92df71f0 | 745 | |
187808b0 | 746 | dump_insns (gdbarch, uiout, low, high, how_many, flags, NULL); |
92df71f0 | 747 | |
3b31d625 | 748 | do_cleanups (ui_out_chain); |
92df71f0 FN |
749 | } |
750 | ||
92bf2b80 AC |
751 | /* Initialize the disassemble info struct ready for the specified |
752 | stream. */ | |
753 | ||
a0b31db1 | 754 | static int ATTRIBUTE_PRINTF (2, 3) |
242e8be5 AC |
755 | fprintf_disasm (void *stream, const char *format, ...) |
756 | { | |
757 | va_list args; | |
9a619af0 | 758 | |
242e8be5 | 759 | va_start (args, format); |
9a3c8263 | 760 | vfprintf_filtered ((struct ui_file *) stream, format, args); |
242e8be5 AC |
761 | va_end (args); |
762 | /* Something non -ve. */ | |
763 | return 0; | |
764 | } | |
765 | ||
e47ad6c0 YQ |
766 | gdb_disassembler::gdb_disassembler (struct gdbarch *gdbarch, |
767 | struct ui_file *file, | |
768 | di_read_memory_ftype read_memory_func) | |
d8b49cf0 YQ |
769 | : m_gdbarch (gdbarch), |
770 | m_err_memaddr (0) | |
92df71f0 | 771 | { |
e47ad6c0 YQ |
772 | init_disassemble_info (&m_di, file, fprintf_disasm); |
773 | m_di.flavour = bfd_target_unknown_flavour; | |
774 | m_di.memory_error_func = dis_asm_memory_error; | |
775 | m_di.print_address_func = dis_asm_print_address; | |
2b6fd0d8 AC |
776 | /* NOTE: cagney/2003-04-28: The original code, from the old Insight |
777 | disassembler had a local optomization here. By default it would | |
778 | access the executable file, instead of the target memory (there | |
ce2826aa | 779 | was a growing list of exceptions though). Unfortunately, the |
2b6fd0d8 AC |
780 | heuristic was flawed. Commands like "disassemble &variable" |
781 | didn't work as they relied on the access going to the target. | |
782 | Further, it has been supperseeded by trust-read-only-sections | |
783 | (although that should be superseeded by target_trust..._p()). */ | |
e47ad6c0 YQ |
784 | m_di.read_memory_func = read_memory_func; |
785 | m_di.arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
786 | m_di.mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
787 | m_di.endian = gdbarch_byte_order (gdbarch); | |
788 | m_di.endian_code = gdbarch_byte_order_for_code (gdbarch); | |
789 | m_di.application_data = this; | |
65b48a81 | 790 | m_di.disassembler_options = get_disassembler_options (gdbarch); |
e47ad6c0 YQ |
791 | disassemble_init_for_target (&m_di); |
792 | } | |
793 | ||
794 | int | |
795 | gdb_disassembler::print_insn (CORE_ADDR memaddr, | |
796 | int *branch_delay_insns) | |
797 | { | |
d8b49cf0 YQ |
798 | m_err_memaddr = 0; |
799 | ||
e47ad6c0 YQ |
800 | int length = gdbarch_print_insn (arch (), memaddr, &m_di); |
801 | ||
d8b49cf0 YQ |
802 | if (length < 0) |
803 | memory_error (TARGET_XFER_E_IO, m_err_memaddr); | |
804 | ||
e47ad6c0 YQ |
805 | if (branch_delay_insns != NULL) |
806 | { | |
807 | if (m_di.insn_info_valid) | |
808 | *branch_delay_insns = m_di.branch_delay_insns; | |
809 | else | |
810 | *branch_delay_insns = 0; | |
811 | } | |
812 | return length; | |
92bf2b80 AC |
813 | } |
814 | ||
815 | void | |
13274fc3 | 816 | gdb_disassembly (struct gdbarch *gdbarch, struct ui_out *uiout, |
7a8eb317 | 817 | int flags, int how_many, |
9c419145 | 818 | CORE_ADDR low, CORE_ADDR high) |
92bf2b80 | 819 | { |
34248c3a | 820 | struct symtab *symtab; |
92bf2b80 | 821 | int nlines = -1; |
92df71f0 | 822 | |
0963b4bd | 823 | /* Assume symtab is valid for whole PC range. */ |
34248c3a | 824 | symtab = find_pc_line_symtab (low); |
92df71f0 | 825 | |
8435453b | 826 | if (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL) |
6ff0ba5f | 827 | nlines = SYMTAB_LINETABLE (symtab)->nitems; |
92df71f0 | 828 | |
6ff0ba5f DE |
829 | if (!(flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
830 | || nlines <= 0) | |
187808b0 | 831 | do_assembly_only (gdbarch, uiout, low, high, how_many, flags); |
92df71f0 | 832 | |
e6158f16 | 833 | else if (flags & DISASSEMBLY_SOURCE) |
187808b0 | 834 | do_mixed_source_and_assembly (gdbarch, uiout, symtab, low, high, |
e47ad6c0 | 835 | how_many, flags); |
6ff0ba5f DE |
836 | |
837 | else if (flags & DISASSEMBLY_SOURCE_DEPRECATED) | |
187808b0 | 838 | do_mixed_source_and_assembly_deprecated (gdbarch, uiout, symtab, |
e47ad6c0 | 839 | low, high, how_many, flags); |
92df71f0 FN |
840 | |
841 | gdb_flush (gdb_stdout); | |
842 | } | |
810ecf9f | 843 | |
92bf2b80 | 844 | /* Print the instruction at address MEMADDR in debugged memory, |
a4642986 MR |
845 | on STREAM. Returns the length of the instruction, in bytes, |
846 | and, if requested, the number of branch delay slot instructions. */ | |
92bf2b80 AC |
847 | |
848 | int | |
13274fc3 UW |
849 | gdb_print_insn (struct gdbarch *gdbarch, CORE_ADDR memaddr, |
850 | struct ui_file *stream, int *branch_delay_insns) | |
92bf2b80 | 851 | { |
a4642986 | 852 | |
e47ad6c0 YQ |
853 | gdb_disassembler di (gdbarch, stream); |
854 | ||
855 | return di.print_insn (memaddr, branch_delay_insns); | |
92bf2b80 | 856 | } |
eda5a4d7 | 857 | |
eda5a4d7 PA |
858 | /* Return the length in bytes of the instruction at address MEMADDR in |
859 | debugged memory. */ | |
860 | ||
861 | int | |
862 | gdb_insn_length (struct gdbarch *gdbarch, CORE_ADDR addr) | |
863 | { | |
d7e74731 | 864 | return gdb_print_insn (gdbarch, addr, &null_stream, NULL); |
eda5a4d7 PA |
865 | } |
866 | ||
867 | /* fprintf-function for gdb_buffered_insn_length. This function is a | |
868 | nop, we don't want to print anything, we just want to compute the | |
869 | length of the insn. */ | |
870 | ||
871 | static int ATTRIBUTE_PRINTF (2, 3) | |
872 | gdb_buffered_insn_length_fprintf (void *stream, const char *format, ...) | |
873 | { | |
874 | return 0; | |
875 | } | |
876 | ||
877 | /* Initialize a struct disassemble_info for gdb_buffered_insn_length. */ | |
878 | ||
879 | static void | |
880 | gdb_buffered_insn_length_init_dis (struct gdbarch *gdbarch, | |
881 | struct disassemble_info *di, | |
882 | const gdb_byte *insn, int max_len, | |
883 | CORE_ADDR addr) | |
884 | { | |
885 | init_disassemble_info (di, NULL, gdb_buffered_insn_length_fprintf); | |
886 | ||
887 | /* init_disassemble_info installs buffer_read_memory, etc. | |
888 | so we don't need to do that here. | |
889 | The cast is necessary until disassemble_info is const-ified. */ | |
890 | di->buffer = (gdb_byte *) insn; | |
891 | di->buffer_length = max_len; | |
892 | di->buffer_vma = addr; | |
893 | ||
894 | di->arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
895 | di->mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
896 | di->endian = gdbarch_byte_order (gdbarch); | |
897 | di->endian_code = gdbarch_byte_order_for_code (gdbarch); | |
898 | ||
65b48a81 | 899 | di->disassembler_options = get_disassembler_options (gdbarch); |
eda5a4d7 PA |
900 | disassemble_init_for_target (di); |
901 | } | |
902 | ||
903 | /* Return the length in bytes of INSN. MAX_LEN is the size of the | |
904 | buffer containing INSN. */ | |
905 | ||
906 | int | |
907 | gdb_buffered_insn_length (struct gdbarch *gdbarch, | |
908 | const gdb_byte *insn, int max_len, CORE_ADDR addr) | |
909 | { | |
910 | struct disassemble_info di; | |
911 | ||
912 | gdb_buffered_insn_length_init_dis (gdbarch, &di, insn, max_len, addr); | |
913 | ||
914 | return gdbarch_print_insn (gdbarch, addr, &di); | |
915 | } | |
65b48a81 PB |
916 | |
917 | char * | |
918 | get_disassembler_options (struct gdbarch *gdbarch) | |
919 | { | |
920 | char **disassembler_options = gdbarch_disassembler_options (gdbarch); | |
921 | if (disassembler_options == NULL) | |
922 | return NULL; | |
923 | return *disassembler_options; | |
924 | } | |
925 | ||
926 | void | |
927 | set_disassembler_options (char *prospective_options) | |
928 | { | |
929 | struct gdbarch *gdbarch = get_current_arch (); | |
930 | char **disassembler_options = gdbarch_disassembler_options (gdbarch); | |
931 | const disasm_options_t *valid_options; | |
932 | char *options = remove_whitespace_and_extra_commas (prospective_options); | |
933 | char *opt; | |
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 | ||
947 | valid_options = gdbarch_valid_disassembler_options (gdbarch); | |
948 | if (valid_options == NULL) | |
949 | { | |
950 | fprintf_filtered (gdb_stdlog, _("\ | |
951 | 'set disassembler-options ...' is not supported on this architecture.\n")); | |
952 | return; | |
953 | } | |
954 | ||
955 | /* Verify we have valid disassembler options. */ | |
956 | FOR_EACH_DISASSEMBLER_OPTION (opt, options) | |
957 | { | |
958 | size_t i; | |
959 | for (i = 0; valid_options->name[i] != NULL; i++) | |
960 | if (disassembler_options_cmp (opt, valid_options->name[i]) == 0) | |
961 | break; | |
962 | if (valid_options->name[i] == NULL) | |
963 | { | |
964 | fprintf_filtered (gdb_stdlog, | |
965 | _("Invalid disassembler option value: '%s'.\n"), | |
966 | opt); | |
967 | return; | |
968 | } | |
969 | } | |
970 | ||
971 | free (*disassembler_options); | |
972 | *disassembler_options = xstrdup (options); | |
973 | } | |
974 | ||
975 | static void | |
976 | set_disassembler_options_sfunc (char *args, int from_tty, | |
977 | struct cmd_list_element *c) | |
978 | { | |
979 | set_disassembler_options (prospective_options); | |
980 | } | |
981 | ||
982 | static void | |
983 | show_disassembler_options_sfunc (struct ui_file *file, int from_tty, | |
984 | struct cmd_list_element *c, const char *value) | |
985 | { | |
986 | struct gdbarch *gdbarch = get_current_arch (); | |
987 | const disasm_options_t *valid_options; | |
988 | ||
989 | const char *options = get_disassembler_options (gdbarch); | |
990 | if (options == NULL) | |
991 | options = ""; | |
992 | ||
993 | fprintf_filtered (file, _("The current disassembler options are '%s'\n"), | |
994 | options); | |
995 | ||
996 | valid_options = gdbarch_valid_disassembler_options (gdbarch); | |
997 | ||
998 | if (valid_options == NULL) | |
999 | return; | |
1000 | ||
1001 | fprintf_filtered (file, _("\n\ | |
1002 | The following disassembler options are supported for use with the\n\ | |
1003 | 'set disassembler-options <option>[,<option>...]' command:\n")); | |
1004 | ||
1005 | if (valid_options->description != NULL) | |
1006 | { | |
1007 | size_t i, max_len = 0; | |
1008 | ||
1009 | /* Compute the length of the longest option name. */ | |
1010 | for (i = 0; valid_options->name[i] != NULL; i++) | |
1011 | { | |
1012 | size_t len = strlen (valid_options->name[i]); | |
1013 | if (max_len < len) | |
1014 | max_len = len; | |
1015 | } | |
1016 | ||
1017 | for (i = 0, max_len++; valid_options->name[i] != NULL; i++) | |
1018 | { | |
1019 | fprintf_filtered (file, " %s", valid_options->name[i]); | |
1020 | if (valid_options->description[i] != NULL) | |
1021 | fprintf_filtered (file, "%*c %s", | |
1022 | (int)(max_len - strlen (valid_options->name[i])), ' ', | |
1023 | valid_options->description[i]); | |
1024 | fprintf_filtered (file, "\n"); | |
1025 | } | |
1026 | } | |
1027 | else | |
1028 | { | |
1029 | size_t i; | |
1030 | fprintf_filtered (file, " "); | |
1031 | for (i = 0; valid_options->name[i] != NULL; i++) | |
1032 | { | |
1033 | fprintf_filtered (file, "%s", valid_options->name[i]); | |
1034 | if (valid_options->name[i + 1] != NULL) | |
1035 | fprintf_filtered (file, ", "); | |
1036 | wrap_here (" "); | |
1037 | } | |
1038 | fprintf_filtered (file, "\n"); | |
1039 | } | |
1040 | } | |
1041 | ||
1042 | /* A completion function for "set disassembler". */ | |
1043 | ||
1044 | static VEC (char_ptr) * | |
1045 | disassembler_options_completer (struct cmd_list_element *ignore, | |
1046 | const char *text, const char *word) | |
1047 | { | |
1048 | struct gdbarch *gdbarch = get_current_arch (); | |
1049 | const disasm_options_t *opts = gdbarch_valid_disassembler_options (gdbarch); | |
1050 | ||
1051 | if (opts != NULL) | |
1052 | { | |
1053 | /* Only attempt to complete on the last option text. */ | |
1054 | const char *separator = strrchr (text, ','); | |
1055 | if (separator != NULL) | |
1056 | text = separator + 1; | |
1057 | text = skip_spaces_const (text); | |
1058 | return complete_on_enum (opts->name, text, word); | |
1059 | } | |
1060 | return NULL; | |
1061 | } | |
1062 | ||
1063 | ||
1064 | /* Initialization code. */ | |
1065 | ||
1066 | /* -Wmissing-prototypes */ | |
1067 | extern initialize_file_ftype _initialize_disasm; | |
1068 | ||
1069 | void | |
1070 | _initialize_disasm (void) | |
1071 | { | |
1072 | struct cmd_list_element *cmd; | |
1073 | ||
1074 | /* Add the command that controls the disassembler options. */ | |
1075 | cmd = add_setshow_string_noescape_cmd ("disassembler-options", no_class, | |
1076 | &prospective_options, _("\ | |
1077 | Set the disassembler options.\n\ | |
1078 | Usage: set disassembler-options <option>[,<option>...]\n\n\ | |
1079 | See: 'show disassembler-options' for valid option values.\n"), _("\ | |
1080 | Show the disassembler options."), NULL, | |
1081 | set_disassembler_options_sfunc, | |
1082 | show_disassembler_options_sfunc, | |
1083 | &setlist, &showlist); | |
1084 | set_cmd_completer (cmd, disassembler_options_completer); | |
1085 | } |