Commit | Line | Data |
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92df71f0 | 1 | /* Disassemble support for GDB. |
1bac305b | 2 | |
b811d2c2 | 3 | Copyright (C) 2000-2020 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" |
e43b10e1 | 34 | #include "cli/cli-style.h" |
92df71f0 FN |
35 | |
36 | /* Disassemble functions. | |
37 | FIXME: We should get rid of all the duplicate code in gdb that does | |
0963b4bd | 38 | the same thing: disassemble_command() and the gdbtk variation. */ |
92df71f0 | 39 | |
65b48a81 PB |
40 | /* This variable is used to hold the prospective disassembler_options value |
41 | which is set by the "set disassembler_options" command. */ | |
42 | static char *prospective_options = NULL; | |
43 | ||
6ff0ba5f DE |
44 | /* This structure is used to store line number information for the |
45 | deprecated /m option. | |
92df71f0 FN |
46 | We need a different sort of line table from the normal one cuz we can't |
47 | depend upon implicit line-end pc's for lines to do the | |
48 | reordering in this function. */ | |
49 | ||
6ff0ba5f | 50 | struct deprecated_dis_line_entry |
92df71f0 FN |
51 | { |
52 | int line; | |
53 | CORE_ADDR start_pc; | |
54 | CORE_ADDR end_pc; | |
55 | }; | |
56 | ||
6ff0ba5f DE |
57 | /* This Structure is used to store line number information. |
58 | We need a different sort of line table from the normal one cuz we can't | |
59 | depend upon implicit line-end pc's for lines to do the | |
60 | reordering in this function. */ | |
61 | ||
62 | struct dis_line_entry | |
63 | { | |
64 | struct symtab *symtab; | |
65 | int line; | |
66 | }; | |
67 | ||
68 | /* Hash function for dis_line_entry. */ | |
69 | ||
70 | static hashval_t | |
71 | hash_dis_line_entry (const void *item) | |
72 | { | |
9a3c8263 | 73 | const struct dis_line_entry *dle = (const struct dis_line_entry *) item; |
6ff0ba5f DE |
74 | |
75 | return htab_hash_pointer (dle->symtab) + dle->line; | |
76 | } | |
77 | ||
78 | /* Equal function for dis_line_entry. */ | |
79 | ||
80 | static int | |
81 | eq_dis_line_entry (const void *item_lhs, const void *item_rhs) | |
82 | { | |
9a3c8263 SM |
83 | const struct dis_line_entry *lhs = (const struct dis_line_entry *) item_lhs; |
84 | const struct dis_line_entry *rhs = (const struct dis_line_entry *) item_rhs; | |
6ff0ba5f DE |
85 | |
86 | return (lhs->symtab == rhs->symtab | |
87 | && lhs->line == rhs->line); | |
88 | } | |
89 | ||
90 | /* Create the table to manage lines for mixed source/disassembly. */ | |
91 | ||
92 | static htab_t | |
93 | allocate_dis_line_table (void) | |
94 | { | |
95 | return htab_create_alloc (41, | |
96 | hash_dis_line_entry, eq_dis_line_entry, | |
97 | xfree, xcalloc, xfree); | |
98 | } | |
99 | ||
4a099de2 | 100 | /* Add a new dis_line_entry containing SYMTAB and LINE to TABLE. */ |
6ff0ba5f DE |
101 | |
102 | static void | |
4a099de2 | 103 | add_dis_line_entry (htab_t table, struct symtab *symtab, int line) |
6ff0ba5f DE |
104 | { |
105 | void **slot; | |
106 | struct dis_line_entry dle, *dlep; | |
107 | ||
108 | dle.symtab = symtab; | |
109 | dle.line = line; | |
110 | slot = htab_find_slot (table, &dle, INSERT); | |
111 | if (*slot == NULL) | |
112 | { | |
113 | dlep = XNEW (struct dis_line_entry); | |
114 | dlep->symtab = symtab; | |
115 | dlep->line = line; | |
116 | *slot = dlep; | |
117 | } | |
118 | } | |
119 | ||
120 | /* Return non-zero if SYMTAB, LINE are in TABLE. */ | |
121 | ||
122 | static int | |
123 | line_has_code_p (htab_t table, struct symtab *symtab, int line) | |
124 | { | |
125 | struct dis_line_entry dle; | |
126 | ||
127 | dle.symtab = symtab; | |
128 | dle.line = line; | |
129 | return htab_find (table, &dle) != NULL; | |
130 | } | |
131 | ||
e47ad6c0 YQ |
132 | /* Wrapper of target_read_code. */ |
133 | ||
134 | int | |
135 | gdb_disassembler::dis_asm_read_memory (bfd_vma memaddr, gdb_byte *myaddr, | |
136 | unsigned int len, | |
137 | struct disassemble_info *info) | |
810ecf9f | 138 | { |
283f7163 | 139 | return target_read_code (memaddr, myaddr, len); |
810ecf9f AC |
140 | } |
141 | ||
e47ad6c0 YQ |
142 | /* Wrapper of memory_error. */ |
143 | ||
144 | void | |
145 | gdb_disassembler::dis_asm_memory_error (int err, bfd_vma memaddr, | |
146 | struct disassemble_info *info) | |
810ecf9f | 147 | { |
d8b49cf0 YQ |
148 | gdb_disassembler *self |
149 | = static_cast<gdb_disassembler *>(info->application_data); | |
150 | ||
151 | self->m_err_memaddr = memaddr; | |
810ecf9f AC |
152 | } |
153 | ||
e47ad6c0 YQ |
154 | /* Wrapper of print_address. */ |
155 | ||
156 | void | |
157 | gdb_disassembler::dis_asm_print_address (bfd_vma addr, | |
158 | struct disassemble_info *info) | |
810ecf9f | 159 | { |
e47ad6c0 YQ |
160 | gdb_disassembler *self |
161 | = static_cast<gdb_disassembler *>(info->application_data); | |
9a619af0 | 162 | |
e47ad6c0 | 163 | print_address (self->arch (), addr, self->stream ()); |
810ecf9f AC |
164 | } |
165 | ||
39ef2f62 CB |
166 | static bool |
167 | line_is_less_than (const deprecated_dis_line_entry &mle1, | |
168 | const deprecated_dis_line_entry &mle2) | |
92df71f0 | 169 | { |
39ef2f62 | 170 | bool val; |
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. */ | |
39ef2f62 | 174 | if (mle1.line == 0 || mle2.line == 0) |
9011945e | 175 | { |
39ef2f62 CB |
176 | if (mle1.start_pc != mle2.start_pc) |
177 | val = mle1.start_pc < mle2.start_pc; | |
178 | else | |
179 | val = mle1.line < mle2.line; | |
9011945e AB |
180 | } |
181 | else | |
182 | { | |
39ef2f62 CB |
183 | if (mle1.line != mle2.line) |
184 | val = mle1.line < mle2.line; | |
185 | else | |
186 | val = mle1.start_pc < mle2.start_pc; | |
9011945e AB |
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 | 247 | m_uiout->field_string ("func-name", name.c_str (), |
e43b10e1 | 248 | function_name_style.style ()); |
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 | 378 | |
8c95582d AB |
379 | /* Ignore non-statement line table entries. This means we print the |
380 | source line at the place where GDB would insert a breakpoint for | |
381 | that line, which seems more intuitive. */ | |
382 | if (le[i].is_stmt == 0) | |
383 | continue; | |
384 | ||
92df71f0 FN |
385 | /* Skip any end-of-function markers. */ |
386 | if (le[i].line == 0) | |
387 | continue; | |
388 | ||
389 | mle[newlines].line = le[i].line; | |
390 | if (le[i].line > le[i + 1].line) | |
391 | out_of_order = 1; | |
392 | mle[newlines].start_pc = le[i].pc; | |
393 | mle[newlines].end_pc = le[i + 1].pc; | |
394 | newlines++; | |
395 | } | |
396 | ||
397 | /* If we're on the last line, and it's part of the function, | |
398 | then we need to get the end pc in a special way. */ | |
399 | ||
400 | if (i == nlines - 1 && le[i].pc < high) | |
401 | { | |
402 | mle[newlines].line = le[i].line; | |
403 | mle[newlines].start_pc = le[i].pc; | |
404 | sal = find_pc_line (le[i].pc, 0); | |
405 | mle[newlines].end_pc = sal.end; | |
406 | newlines++; | |
407 | } | |
408 | ||
6ff0ba5f | 409 | /* Now, sort mle by line #s (and, then by addresses within lines). */ |
92df71f0 FN |
410 | |
411 | if (out_of_order) | |
39ef2f62 | 412 | std::sort (mle, mle + newlines, line_is_less_than); |
92df71f0 FN |
413 | |
414 | /* Now, for each line entry, emit the specified lines (unless | |
415 | they have been emitted before), followed by the assembly code | |
416 | for that line. */ | |
417 | ||
30f0b101 TT |
418 | ui_out_emit_list asm_insns_list (uiout, "asm_insns"); |
419 | ||
420 | gdb::optional<ui_out_emit_tuple> outer_tuple_emitter; | |
421 | gdb::optional<ui_out_emit_list> inner_list_emitter; | |
92df71f0 FN |
422 | |
423 | for (i = 0; i < newlines; i++) | |
424 | { | |
92df71f0 FN |
425 | /* Print out everything from next_line to the current line. */ |
426 | if (mle[i].line >= next_line) | |
427 | { | |
428 | if (next_line != 0) | |
429 | { | |
0963b4bd | 430 | /* Just one line to print. */ |
92df71f0 FN |
431 | if (next_line == mle[i].line) |
432 | { | |
30f0b101 | 433 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 434 | print_source_lines (symtab, next_line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
435 | } |
436 | else | |
437 | { | |
0963b4bd | 438 | /* Several source lines w/o asm instructions associated. */ |
92df71f0 FN |
439 | for (; next_line < mle[i].line; next_line++) |
440 | { | |
2e783024 TT |
441 | ui_out_emit_tuple tuple_emitter (uiout, |
442 | "src_and_asm_line"); | |
92df71f0 | 443 | print_source_lines (symtab, next_line, next_line + 1, |
4cd29721 | 444 | psl_flags); |
b926417a TT |
445 | ui_out_emit_list temp_list_emitter (uiout, |
446 | "line_asm_insn"); | |
92df71f0 FN |
447 | } |
448 | /* Print the last line and leave list open for | |
0963b4bd | 449 | asm instructions to be added. */ |
30f0b101 | 450 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 451 | print_source_lines (symtab, next_line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
452 | } |
453 | } | |
454 | else | |
455 | { | |
30f0b101 | 456 | outer_tuple_emitter.emplace (uiout, "src_and_asm_line"); |
4cd29721 | 457 | print_source_lines (symtab, mle[i].line, mle[i].line + 1, psl_flags); |
92df71f0 FN |
458 | } |
459 | ||
460 | next_line = mle[i].line + 1; | |
30f0b101 | 461 | inner_list_emitter.emplace (uiout, "line_asm_insn"); |
92df71f0 FN |
462 | } |
463 | ||
187808b0 | 464 | num_displayed += dump_insns (gdbarch, uiout, |
13274fc3 | 465 | mle[i].start_pc, mle[i].end_pc, |
e47ad6c0 | 466 | how_many, flags, NULL); |
0127c0d3 JJ |
467 | |
468 | /* When we've reached the end of the mle array, or we've seen the last | |
469 | assembly range for this source line, close out the list/tuple. */ | |
470 | if (i == (newlines - 1) || mle[i + 1].line > mle[i].line) | |
92df71f0 | 471 | { |
30f0b101 TT |
472 | inner_list_emitter.reset (); |
473 | outer_tuple_emitter.reset (); | |
112e8700 | 474 | uiout->text ("\n"); |
92df71f0 | 475 | } |
0127c0d3 JJ |
476 | if (how_many >= 0 && num_displayed >= how_many) |
477 | break; | |
92df71f0 | 478 | } |
92df71f0 FN |
479 | } |
480 | ||
6ff0ba5f DE |
481 | /* The idea here is to present a source-O-centric view of a |
482 | function to the user. This means that things are presented | |
483 | in source order, with (possibly) out of order assembly | |
484 | immediately following. */ | |
485 | ||
486 | static void | |
e47ad6c0 YQ |
487 | do_mixed_source_and_assembly (struct gdbarch *gdbarch, |
488 | struct ui_out *uiout, | |
6ff0ba5f DE |
489 | struct symtab *main_symtab, |
490 | CORE_ADDR low, CORE_ADDR high, | |
9a24775b | 491 | int how_many, gdb_disassembly_flags flags) |
6ff0ba5f | 492 | { |
6ff0ba5f | 493 | const struct linetable_entry *le, *first_le; |
6ff0ba5f | 494 | int i, nlines; |
6ff0ba5f | 495 | int num_displayed = 0; |
8d297bbf | 496 | print_source_lines_flags psl_flags = 0; |
6ff0ba5f DE |
497 | CORE_ADDR pc; |
498 | struct symtab *last_symtab; | |
499 | int last_line; | |
6ff0ba5f DE |
500 | |
501 | gdb_assert (main_symtab != NULL && SYMTAB_LINETABLE (main_symtab) != NULL); | |
502 | ||
503 | /* First pass: collect the list of all source files and lines. | |
504 | We do this so that we can only print lines containing code once. | |
505 | We try to print the source text leading up to the next instruction, | |
506 | but if that text is for code that will be disassembled later, then | |
507 | we'll want to defer printing it until later with its associated code. */ | |
508 | ||
fc4007c9 | 509 | htab_up dis_line_table (allocate_dis_line_table ()); |
6ff0ba5f DE |
510 | |
511 | pc = low; | |
512 | ||
513 | /* The prologue may be empty, but there may still be a line number entry | |
514 | for the opening brace which is distinct from the first line of code. | |
515 | If the prologue has been eliminated find_pc_line may return the source | |
516 | line after the opening brace. We still want to print this opening brace. | |
517 | first_le is used to implement this. */ | |
518 | ||
519 | nlines = SYMTAB_LINETABLE (main_symtab)->nitems; | |
520 | le = SYMTAB_LINETABLE (main_symtab)->item; | |
521 | first_le = NULL; | |
522 | ||
523 | /* Skip all the preceding functions. */ | |
524 | for (i = 0; i < nlines && le[i].pc < low; i++) | |
525 | continue; | |
526 | ||
527 | if (i < nlines && le[i].pc < high) | |
528 | first_le = &le[i]; | |
529 | ||
530 | /* Add lines for every pc value. */ | |
531 | while (pc < high) | |
532 | { | |
533 | struct symtab_and_line sal; | |
534 | int length; | |
535 | ||
536 | sal = find_pc_line (pc, 0); | |
537 | length = gdb_insn_length (gdbarch, pc); | |
538 | pc += length; | |
539 | ||
540 | if (sal.symtab != NULL) | |
fc4007c9 | 541 | add_dis_line_entry (dis_line_table.get (), sal.symtab, sal.line); |
6ff0ba5f DE |
542 | } |
543 | ||
544 | /* Second pass: print the disassembly. | |
545 | ||
546 | Output format, from an MI perspective: | |
547 | The result is a ui_out list, field name "asm_insns", where elements have | |
548 | name "src_and_asm_line". | |
549 | Each element is a tuple of source line specs (field names line, file, | |
550 | fullname), and field "line_asm_insn" which contains the disassembly. | |
551 | Field "line_asm_insn" is a list of tuples: address, func-name, offset, | |
552 | opcodes, inst. | |
553 | ||
554 | CLI output works on top of this because MI ignores ui_out_text output, | |
555 | which is where we put file name and source line contents output. | |
556 | ||
30f0b101 TT |
557 | Emitter usage: |
558 | asm_insns_emitter | |
6ff0ba5f | 559 | Handles the outer "asm_insns" list. |
30f0b101 | 560 | tuple_emitter |
6ff0ba5f | 561 | The tuples for each group of consecutive disassemblies. |
30f0b101 | 562 | list_emitter |
6ff0ba5f DE |
563 | List of consecutive source lines or disassembled insns. */ |
564 | ||
565 | if (flags & DISASSEMBLY_FILENAME) | |
566 | psl_flags |= PRINT_SOURCE_LINES_FILENAME; | |
567 | ||
30f0b101 | 568 | ui_out_emit_list asm_insns_emitter (uiout, "asm_insns"); |
6ff0ba5f | 569 | |
30f0b101 TT |
570 | gdb::optional<ui_out_emit_tuple> tuple_emitter; |
571 | gdb::optional<ui_out_emit_list> list_emitter; | |
6ff0ba5f DE |
572 | |
573 | last_symtab = NULL; | |
574 | last_line = 0; | |
575 | pc = low; | |
576 | ||
577 | while (pc < high) | |
578 | { | |
6ff0ba5f DE |
579 | struct symtab_and_line sal; |
580 | CORE_ADDR end_pc; | |
581 | int start_preceding_line_to_display = 0; | |
582 | int end_preceding_line_to_display = 0; | |
583 | int new_source_line = 0; | |
584 | ||
585 | sal = find_pc_line (pc, 0); | |
586 | ||
587 | if (sal.symtab != last_symtab) | |
588 | { | |
589 | /* New source file. */ | |
590 | new_source_line = 1; | |
591 | ||
592 | /* If this is the first line of output, check for any preceding | |
593 | lines. */ | |
594 | if (last_line == 0 | |
595 | && first_le != NULL | |
596 | && first_le->line < sal.line) | |
597 | { | |
598 | start_preceding_line_to_display = first_le->line; | |
599 | end_preceding_line_to_display = sal.line; | |
600 | } | |
601 | } | |
602 | else | |
603 | { | |
604 | /* Same source file as last time. */ | |
605 | if (sal.symtab != NULL) | |
606 | { | |
607 | if (sal.line > last_line + 1 && last_line != 0) | |
608 | { | |
609 | int l; | |
610 | ||
611 | /* Several preceding source lines. Print the trailing ones | |
612 | not associated with code that we'll print later. */ | |
613 | for (l = sal.line - 1; l > last_line; --l) | |
614 | { | |
fc4007c9 TT |
615 | if (line_has_code_p (dis_line_table.get (), |
616 | sal.symtab, l)) | |
6ff0ba5f DE |
617 | break; |
618 | } | |
619 | if (l < sal.line - 1) | |
620 | { | |
621 | start_preceding_line_to_display = l + 1; | |
622 | end_preceding_line_to_display = sal.line; | |
623 | } | |
624 | } | |
625 | if (sal.line != last_line) | |
626 | new_source_line = 1; | |
627 | else | |
628 | { | |
629 | /* Same source line as last time. This can happen, depending | |
630 | on the debug info. */ | |
631 | } | |
632 | } | |
633 | } | |
634 | ||
635 | if (new_source_line) | |
636 | { | |
637 | /* Skip the newline if this is the first instruction. */ | |
638 | if (pc > low) | |
112e8700 | 639 | uiout->text ("\n"); |
30f0b101 | 640 | if (tuple_emitter.has_value ()) |
6ff0ba5f | 641 | { |
30f0b101 TT |
642 | gdb_assert (list_emitter.has_value ()); |
643 | list_emitter.reset (); | |
644 | tuple_emitter.reset (); | |
6ff0ba5f DE |
645 | } |
646 | if (sal.symtab != last_symtab | |
647 | && !(flags & DISASSEMBLY_FILENAME)) | |
648 | { | |
649 | /* Remember MI ignores ui_out_text. | |
650 | We don't have to do anything here for MI because MI | |
651 | output includes the source specs for each line. */ | |
652 | if (sal.symtab != NULL) | |
653 | { | |
112e8700 | 654 | uiout->text (symtab_to_filename_for_display (sal.symtab)); |
6ff0ba5f DE |
655 | } |
656 | else | |
112e8700 SM |
657 | uiout->text ("unknown"); |
658 | uiout->text (":\n"); | |
6ff0ba5f DE |
659 | } |
660 | if (start_preceding_line_to_display > 0) | |
661 | { | |
662 | /* Several source lines w/o asm instructions associated. | |
663 | We need to preserve the structure of the output, so output | |
664 | a bunch of line tuples with no asm entries. */ | |
665 | int l; | |
6ff0ba5f DE |
666 | |
667 | gdb_assert (sal.symtab != NULL); | |
668 | for (l = start_preceding_line_to_display; | |
669 | l < end_preceding_line_to_display; | |
670 | ++l) | |
671 | { | |
b926417a TT |
672 | ui_out_emit_tuple line_tuple_emitter (uiout, |
673 | "src_and_asm_line"); | |
6ff0ba5f | 674 | print_source_lines (sal.symtab, l, l + 1, psl_flags); |
30f0b101 | 675 | ui_out_emit_list chain_line_emitter (uiout, "line_asm_insn"); |
6ff0ba5f DE |
676 | } |
677 | } | |
30f0b101 | 678 | tuple_emitter.emplace (uiout, "src_and_asm_line"); |
6ff0ba5f DE |
679 | if (sal.symtab != NULL) |
680 | print_source_lines (sal.symtab, sal.line, sal.line + 1, psl_flags); | |
681 | else | |
112e8700 | 682 | uiout->text (_("--- no source info for this pc ---\n")); |
30f0b101 | 683 | list_emitter.emplace (uiout, "line_asm_insn"); |
6ff0ba5f DE |
684 | } |
685 | else | |
686 | { | |
687 | /* Here we're appending instructions to an existing line. | |
688 | By construction the very first insn will have a symtab | |
689 | and follow the new_source_line path above. */ | |
30f0b101 TT |
690 | gdb_assert (tuple_emitter.has_value ()); |
691 | gdb_assert (list_emitter.has_value ()); | |
6ff0ba5f DE |
692 | } |
693 | ||
694 | if (sal.end != 0) | |
325fac50 | 695 | end_pc = std::min (sal.end, high); |
6ff0ba5f DE |
696 | else |
697 | end_pc = pc + 1; | |
187808b0 | 698 | num_displayed += dump_insns (gdbarch, uiout, pc, end_pc, |
e47ad6c0 | 699 | how_many, flags, &end_pc); |
6ff0ba5f DE |
700 | pc = end_pc; |
701 | ||
702 | if (how_many >= 0 && num_displayed >= how_many) | |
703 | break; | |
704 | ||
705 | last_symtab = sal.symtab; | |
706 | last_line = sal.line; | |
707 | } | |
6ff0ba5f | 708 | } |
92df71f0 FN |
709 | |
710 | static void | |
187808b0 | 711 | do_assembly_only (struct gdbarch *gdbarch, struct ui_out *uiout, |
92df71f0 | 712 | CORE_ADDR low, CORE_ADDR high, |
9a24775b | 713 | int how_many, gdb_disassembly_flags flags) |
92df71f0 | 714 | { |
10f489e5 | 715 | ui_out_emit_list list_emitter (uiout, "asm_insns"); |
92df71f0 | 716 | |
187808b0 | 717 | dump_insns (gdbarch, uiout, low, high, how_many, flags, NULL); |
92df71f0 FN |
718 | } |
719 | ||
92bf2b80 AC |
720 | /* Initialize the disassemble info struct ready for the specified |
721 | stream. */ | |
722 | ||
a0b31db1 | 723 | static int ATTRIBUTE_PRINTF (2, 3) |
242e8be5 AC |
724 | fprintf_disasm (void *stream, const char *format, ...) |
725 | { | |
726 | va_list args; | |
9a619af0 | 727 | |
242e8be5 | 728 | va_start (args, format); |
9a3c8263 | 729 | vfprintf_filtered ((struct ui_file *) stream, format, args); |
242e8be5 AC |
730 | va_end (args); |
731 | /* Something non -ve. */ | |
732 | return 0; | |
733 | } | |
734 | ||
471b9d15 MR |
735 | /* Combine implicit and user disassembler options and return them |
736 | in a newly-created string. */ | |
737 | ||
738 | static std::string | |
739 | get_all_disassembler_options (struct gdbarch *gdbarch) | |
740 | { | |
741 | const char *implicit = gdbarch_disassembler_options_implicit (gdbarch); | |
742 | const char *options = get_disassembler_options (gdbarch); | |
743 | const char *comma = ","; | |
744 | ||
745 | if (implicit == nullptr) | |
746 | { | |
747 | implicit = ""; | |
748 | comma = ""; | |
749 | } | |
750 | ||
751 | if (options == nullptr) | |
752 | { | |
753 | options = ""; | |
754 | comma = ""; | |
755 | } | |
756 | ||
757 | return string_printf ("%s%s%s", implicit, comma, options); | |
758 | } | |
759 | ||
e47ad6c0 YQ |
760 | gdb_disassembler::gdb_disassembler (struct gdbarch *gdbarch, |
761 | struct ui_file *file, | |
762 | di_read_memory_ftype read_memory_func) | |
d8b49cf0 YQ |
763 | : m_gdbarch (gdbarch), |
764 | m_err_memaddr (0) | |
92df71f0 | 765 | { |
e47ad6c0 YQ |
766 | init_disassemble_info (&m_di, file, fprintf_disasm); |
767 | m_di.flavour = bfd_target_unknown_flavour; | |
768 | m_di.memory_error_func = dis_asm_memory_error; | |
769 | m_di.print_address_func = dis_asm_print_address; | |
2b6fd0d8 | 770 | /* NOTE: cagney/2003-04-28: The original code, from the old Insight |
85102364 | 771 | disassembler had a local optimization here. By default it would |
2b6fd0d8 | 772 | access the executable file, instead of the target memory (there |
ce2826aa | 773 | was a growing list of exceptions though). Unfortunately, the |
2b6fd0d8 AC |
774 | heuristic was flawed. Commands like "disassemble &variable" |
775 | didn't work as they relied on the access going to the target. | |
85102364 | 776 | Further, it has been superseeded by trust-read-only-sections |
2b6fd0d8 | 777 | (although that should be superseeded by target_trust..._p()). */ |
e47ad6c0 YQ |
778 | m_di.read_memory_func = read_memory_func; |
779 | m_di.arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
780 | m_di.mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
781 | m_di.endian = gdbarch_byte_order (gdbarch); | |
782 | m_di.endian_code = gdbarch_byte_order_for_code (gdbarch); | |
783 | m_di.application_data = this; | |
471b9d15 MR |
784 | m_disassembler_options_holder = get_all_disassembler_options (gdbarch); |
785 | if (!m_disassembler_options_holder.empty ()) | |
786 | m_di.disassembler_options = m_disassembler_options_holder.c_str (); | |
e47ad6c0 YQ |
787 | disassemble_init_for_target (&m_di); |
788 | } | |
789 | ||
4d89c1c7 TT |
790 | gdb_disassembler::~gdb_disassembler () |
791 | { | |
792 | disassemble_free_target (&m_di); | |
793 | } | |
794 | ||
e47ad6c0 YQ |
795 | int |
796 | gdb_disassembler::print_insn (CORE_ADDR memaddr, | |
797 | int *branch_delay_insns) | |
798 | { | |
d8b49cf0 YQ |
799 | m_err_memaddr = 0; |
800 | ||
e47ad6c0 YQ |
801 | int length = gdbarch_print_insn (arch (), memaddr, &m_di); |
802 | ||
d8b49cf0 YQ |
803 | if (length < 0) |
804 | memory_error (TARGET_XFER_E_IO, m_err_memaddr); | |
805 | ||
e47ad6c0 YQ |
806 | if (branch_delay_insns != NULL) |
807 | { | |
808 | if (m_di.insn_info_valid) | |
809 | *branch_delay_insns = m_di.branch_delay_insns; | |
810 | else | |
811 | *branch_delay_insns = 0; | |
812 | } | |
813 | return length; | |
92bf2b80 AC |
814 | } |
815 | ||
816 | void | |
13274fc3 | 817 | gdb_disassembly (struct gdbarch *gdbarch, struct ui_out *uiout, |
9a24775b | 818 | gdb_disassembly_flags flags, int how_many, |
9c419145 | 819 | CORE_ADDR low, CORE_ADDR high) |
92bf2b80 | 820 | { |
34248c3a | 821 | struct symtab *symtab; |
92bf2b80 | 822 | int nlines = -1; |
92df71f0 | 823 | |
0963b4bd | 824 | /* Assume symtab is valid for whole PC range. */ |
34248c3a | 825 | symtab = find_pc_line_symtab (low); |
92df71f0 | 826 | |
8435453b | 827 | if (symtab != NULL && SYMTAB_LINETABLE (symtab) != NULL) |
6ff0ba5f | 828 | nlines = SYMTAB_LINETABLE (symtab)->nitems; |
92df71f0 | 829 | |
6ff0ba5f DE |
830 | if (!(flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
831 | || nlines <= 0) | |
187808b0 | 832 | do_assembly_only (gdbarch, uiout, low, high, how_many, flags); |
92df71f0 | 833 | |
e6158f16 | 834 | else if (flags & DISASSEMBLY_SOURCE) |
187808b0 | 835 | do_mixed_source_and_assembly (gdbarch, uiout, symtab, low, high, |
e47ad6c0 | 836 | how_many, flags); |
6ff0ba5f DE |
837 | |
838 | else if (flags & DISASSEMBLY_SOURCE_DEPRECATED) | |
187808b0 | 839 | do_mixed_source_and_assembly_deprecated (gdbarch, uiout, symtab, |
e47ad6c0 | 840 | low, high, how_many, flags); |
92df71f0 FN |
841 | |
842 | gdb_flush (gdb_stdout); | |
843 | } | |
810ecf9f | 844 | |
92bf2b80 | 845 | /* Print the instruction at address MEMADDR in debugged memory, |
a4642986 MR |
846 | on STREAM. Returns the length of the instruction, in bytes, |
847 | and, if requested, the number of branch delay slot instructions. */ | |
92bf2b80 AC |
848 | |
849 | int | |
13274fc3 UW |
850 | gdb_print_insn (struct gdbarch *gdbarch, CORE_ADDR memaddr, |
851 | struct ui_file *stream, int *branch_delay_insns) | |
92bf2b80 | 852 | { |
a4642986 | 853 | |
e47ad6c0 YQ |
854 | gdb_disassembler di (gdbarch, stream); |
855 | ||
856 | return di.print_insn (memaddr, branch_delay_insns); | |
92bf2b80 | 857 | } |
eda5a4d7 | 858 | |
eda5a4d7 PA |
859 | /* Return the length in bytes of the instruction at address MEMADDR in |
860 | debugged memory. */ | |
861 | ||
862 | int | |
863 | gdb_insn_length (struct gdbarch *gdbarch, CORE_ADDR addr) | |
864 | { | |
d7e74731 | 865 | return gdb_print_insn (gdbarch, addr, &null_stream, NULL); |
eda5a4d7 PA |
866 | } |
867 | ||
868 | /* fprintf-function for gdb_buffered_insn_length. This function is a | |
869 | nop, we don't want to print anything, we just want to compute the | |
870 | length of the insn. */ | |
871 | ||
872 | static int ATTRIBUTE_PRINTF (2, 3) | |
873 | gdb_buffered_insn_length_fprintf (void *stream, const char *format, ...) | |
874 | { | |
875 | return 0; | |
876 | } | |
877 | ||
471b9d15 MR |
878 | /* Initialize a struct disassemble_info for gdb_buffered_insn_length. |
879 | Upon return, *DISASSEMBLER_OPTIONS_HOLDER owns the string pointed | |
880 | to by DI.DISASSEMBLER_OPTIONS. */ | |
eda5a4d7 PA |
881 | |
882 | static void | |
883 | gdb_buffered_insn_length_init_dis (struct gdbarch *gdbarch, | |
884 | struct disassemble_info *di, | |
885 | const gdb_byte *insn, int max_len, | |
471b9d15 MR |
886 | CORE_ADDR addr, |
887 | std::string *disassembler_options_holder) | |
eda5a4d7 PA |
888 | { |
889 | init_disassemble_info (di, NULL, gdb_buffered_insn_length_fprintf); | |
890 | ||
891 | /* init_disassemble_info installs buffer_read_memory, etc. | |
892 | so we don't need to do that here. | |
893 | The cast is necessary until disassemble_info is const-ified. */ | |
894 | di->buffer = (gdb_byte *) insn; | |
895 | di->buffer_length = max_len; | |
896 | di->buffer_vma = addr; | |
897 | ||
898 | di->arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
899 | di->mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
900 | di->endian = gdbarch_byte_order (gdbarch); | |
901 | di->endian_code = gdbarch_byte_order_for_code (gdbarch); | |
902 | ||
471b9d15 MR |
903 | *disassembler_options_holder = get_all_disassembler_options (gdbarch); |
904 | if (!disassembler_options_holder->empty ()) | |
905 | di->disassembler_options = disassembler_options_holder->c_str (); | |
eda5a4d7 PA |
906 | disassemble_init_for_target (di); |
907 | } | |
908 | ||
909 | /* Return the length in bytes of INSN. MAX_LEN is the size of the | |
910 | buffer containing INSN. */ | |
911 | ||
912 | int | |
913 | gdb_buffered_insn_length (struct gdbarch *gdbarch, | |
914 | const gdb_byte *insn, int max_len, CORE_ADDR addr) | |
915 | { | |
916 | struct disassemble_info di; | |
471b9d15 | 917 | std::string disassembler_options_holder; |
eda5a4d7 | 918 | |
471b9d15 MR |
919 | gdb_buffered_insn_length_init_dis (gdbarch, &di, insn, max_len, addr, |
920 | &disassembler_options_holder); | |
eda5a4d7 | 921 | |
4d89c1c7 TT |
922 | int result = gdbarch_print_insn (gdbarch, addr, &di); |
923 | disassemble_free_target (&di); | |
924 | return result; | |
eda5a4d7 | 925 | } |
65b48a81 PB |
926 | |
927 | char * | |
928 | get_disassembler_options (struct gdbarch *gdbarch) | |
929 | { | |
930 | char **disassembler_options = gdbarch_disassembler_options (gdbarch); | |
931 | if (disassembler_options == NULL) | |
932 | return NULL; | |
933 | return *disassembler_options; | |
934 | } | |
935 | ||
936 | void | |
937 | set_disassembler_options (char *prospective_options) | |
938 | { | |
939 | struct gdbarch *gdbarch = get_current_arch (); | |
940 | char **disassembler_options = gdbarch_disassembler_options (gdbarch); | |
471b9d15 | 941 | const disasm_options_and_args_t *valid_options_and_args; |
65b48a81 PB |
942 | const disasm_options_t *valid_options; |
943 | char *options = remove_whitespace_and_extra_commas (prospective_options); | |
f995bbe8 | 944 | const char *opt; |
65b48a81 PB |
945 | |
946 | /* Allow all architectures, even ones that do not support 'set disassembler', | |
947 | to reset their disassembler options to NULL. */ | |
948 | if (options == NULL) | |
949 | { | |
950 | if (disassembler_options != NULL) | |
951 | { | |
952 | free (*disassembler_options); | |
953 | *disassembler_options = NULL; | |
954 | } | |
955 | return; | |
956 | } | |
957 | ||
471b9d15 MR |
958 | valid_options_and_args = gdbarch_valid_disassembler_options (gdbarch); |
959 | if (valid_options_and_args == NULL) | |
65b48a81 | 960 | { |
81f47ac2 | 961 | fprintf_filtered (gdb_stderr, _("\ |
65b48a81 PB |
962 | 'set disassembler-options ...' is not supported on this architecture.\n")); |
963 | return; | |
964 | } | |
965 | ||
471b9d15 MR |
966 | valid_options = &valid_options_and_args->options; |
967 | ||
65b48a81 PB |
968 | /* Verify we have valid disassembler options. */ |
969 | FOR_EACH_DISASSEMBLER_OPTION (opt, options) | |
970 | { | |
971 | size_t i; | |
972 | for (i = 0; valid_options->name[i] != NULL; i++) | |
471b9d15 MR |
973 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
974 | { | |
975 | size_t len = strlen (valid_options->name[i]); | |
976 | bool found = false; | |
977 | const char *arg; | |
978 | size_t j; | |
979 | ||
980 | if (memcmp (opt, valid_options->name[i], len) != 0) | |
981 | continue; | |
982 | arg = opt + len; | |
983 | for (j = 0; valid_options->arg[i]->values[j] != NULL; j++) | |
984 | if (disassembler_options_cmp | |
985 | (arg, valid_options->arg[i]->values[j]) == 0) | |
986 | { | |
987 | found = true; | |
988 | break; | |
989 | } | |
990 | if (found) | |
991 | break; | |
992 | } | |
993 | else if (disassembler_options_cmp (opt, valid_options->name[i]) == 0) | |
65b48a81 PB |
994 | break; |
995 | if (valid_options->name[i] == NULL) | |
996 | { | |
81f47ac2 | 997 | fprintf_filtered (gdb_stderr, |
65b48a81 PB |
998 | _("Invalid disassembler option value: '%s'.\n"), |
999 | opt); | |
1000 | return; | |
1001 | } | |
1002 | } | |
1003 | ||
1004 | free (*disassembler_options); | |
1005 | *disassembler_options = xstrdup (options); | |
1006 | } | |
1007 | ||
1008 | static void | |
eb4c3f4a | 1009 | set_disassembler_options_sfunc (const char *args, int from_tty, |
65b48a81 PB |
1010 | struct cmd_list_element *c) |
1011 | { | |
1012 | set_disassembler_options (prospective_options); | |
1013 | } | |
1014 | ||
1015 | static void | |
1016 | show_disassembler_options_sfunc (struct ui_file *file, int from_tty, | |
1017 | struct cmd_list_element *c, const char *value) | |
1018 | { | |
1019 | struct gdbarch *gdbarch = get_current_arch (); | |
471b9d15 MR |
1020 | const disasm_options_and_args_t *valid_options_and_args; |
1021 | const disasm_option_arg_t *valid_args; | |
65b48a81 PB |
1022 | const disasm_options_t *valid_options; |
1023 | ||
1024 | const char *options = get_disassembler_options (gdbarch); | |
1025 | if (options == NULL) | |
1026 | options = ""; | |
1027 | ||
f4bab6ff | 1028 | fprintf_filtered (file, _("The current disassembler options are '%s'\n\n"), |
65b48a81 PB |
1029 | options); |
1030 | ||
471b9d15 | 1031 | valid_options_and_args = gdbarch_valid_disassembler_options (gdbarch); |
65b48a81 | 1032 | |
471b9d15 | 1033 | if (valid_options_and_args == NULL) |
f4bab6ff TT |
1034 | { |
1035 | fputs_filtered (_("There are no disassembler options available " | |
1036 | "for this architecture.\n"), | |
1037 | file); | |
1038 | return; | |
1039 | } | |
65b48a81 | 1040 | |
471b9d15 MR |
1041 | valid_options = &valid_options_and_args->options; |
1042 | ||
f4bab6ff | 1043 | fprintf_filtered (file, _("\ |
65b48a81 | 1044 | The following disassembler options are supported for use with the\n\ |
f4bab6ff | 1045 | 'set disassembler-options OPTION [,OPTION]...' command:\n")); |
65b48a81 PB |
1046 | |
1047 | if (valid_options->description != NULL) | |
1048 | { | |
1049 | size_t i, max_len = 0; | |
1050 | ||
471b9d15 MR |
1051 | fprintf_filtered (file, "\n"); |
1052 | ||
65b48a81 PB |
1053 | /* Compute the length of the longest option name. */ |
1054 | for (i = 0; valid_options->name[i] != NULL; i++) | |
1055 | { | |
1056 | size_t len = strlen (valid_options->name[i]); | |
471b9d15 MR |
1057 | |
1058 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) | |
1059 | len += strlen (valid_options->arg[i]->name); | |
65b48a81 PB |
1060 | if (max_len < len) |
1061 | max_len = len; | |
1062 | } | |
1063 | ||
1064 | for (i = 0, max_len++; valid_options->name[i] != NULL; i++) | |
1065 | { | |
1066 | fprintf_filtered (file, " %s", valid_options->name[i]); | |
471b9d15 MR |
1067 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
1068 | fprintf_filtered (file, "%s", valid_options->arg[i]->name); | |
65b48a81 | 1069 | if (valid_options->description[i] != NULL) |
471b9d15 MR |
1070 | { |
1071 | size_t len = strlen (valid_options->name[i]); | |
1072 | ||
1073 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) | |
1074 | len += strlen (valid_options->arg[i]->name); | |
1075 | fprintf_filtered (file, "%*c %s", (int) (max_len - len), ' ', | |
1076 | valid_options->description[i]); | |
1077 | } | |
65b48a81 PB |
1078 | fprintf_filtered (file, "\n"); |
1079 | } | |
1080 | } | |
1081 | else | |
1082 | { | |
1083 | size_t i; | |
1084 | fprintf_filtered (file, " "); | |
1085 | for (i = 0; valid_options->name[i] != NULL; i++) | |
1086 | { | |
1087 | fprintf_filtered (file, "%s", valid_options->name[i]); | |
471b9d15 MR |
1088 | if (valid_options->arg != NULL && valid_options->arg[i] != NULL) |
1089 | fprintf_filtered (file, "%s", valid_options->arg[i]->name); | |
65b48a81 PB |
1090 | if (valid_options->name[i + 1] != NULL) |
1091 | fprintf_filtered (file, ", "); | |
1092 | wrap_here (" "); | |
1093 | } | |
1094 | fprintf_filtered (file, "\n"); | |
1095 | } | |
471b9d15 MR |
1096 | |
1097 | valid_args = valid_options_and_args->args; | |
1098 | if (valid_args != NULL) | |
1099 | { | |
1100 | size_t i, j; | |
1101 | ||
1102 | for (i = 0; valid_args[i].name != NULL; i++) | |
1103 | { | |
1104 | fprintf_filtered (file, _("\n\ | |
1105 | For the options above, the following values are supported for \"%s\":\n "), | |
1106 | valid_args[i].name); | |
1107 | for (j = 0; valid_args[i].values[j] != NULL; j++) | |
1108 | { | |
1109 | fprintf_filtered (file, " %s", valid_args[i].values[j]); | |
1110 | wrap_here (" "); | |
1111 | } | |
1112 | fprintf_filtered (file, "\n"); | |
1113 | } | |
1114 | } | |
65b48a81 PB |
1115 | } |
1116 | ||
1117 | /* A completion function for "set disassembler". */ | |
1118 | ||
eb3ff9a5 | 1119 | static void |
65b48a81 | 1120 | disassembler_options_completer (struct cmd_list_element *ignore, |
eb3ff9a5 | 1121 | completion_tracker &tracker, |
65b48a81 PB |
1122 | const char *text, const char *word) |
1123 | { | |
1124 | struct gdbarch *gdbarch = get_current_arch (); | |
471b9d15 MR |
1125 | const disasm_options_and_args_t *opts_and_args |
1126 | = gdbarch_valid_disassembler_options (gdbarch); | |
65b48a81 | 1127 | |
471b9d15 | 1128 | if (opts_and_args != NULL) |
65b48a81 | 1129 | { |
471b9d15 MR |
1130 | const disasm_options_t *opts = &opts_and_args->options; |
1131 | ||
65b48a81 PB |
1132 | /* Only attempt to complete on the last option text. */ |
1133 | const char *separator = strrchr (text, ','); | |
1134 | if (separator != NULL) | |
1135 | text = separator + 1; | |
f1735a53 | 1136 | text = skip_spaces (text); |
eb3ff9a5 | 1137 | complete_on_enum (tracker, opts->name, text, word); |
65b48a81 | 1138 | } |
65b48a81 PB |
1139 | } |
1140 | ||
1141 | ||
1142 | /* Initialization code. */ | |
1143 | ||
6c265988 | 1144 | void _initialize_disasm (); |
65b48a81 | 1145 | void |
6c265988 | 1146 | _initialize_disasm () |
65b48a81 PB |
1147 | { |
1148 | struct cmd_list_element *cmd; | |
1149 | ||
1150 | /* Add the command that controls the disassembler options. */ | |
1151 | cmd = add_setshow_string_noescape_cmd ("disassembler-options", no_class, | |
1152 | &prospective_options, _("\ | |
1153 | Set the disassembler options.\n\ | |
7c9ee61b | 1154 | Usage: set disassembler-options OPTION [,OPTION]...\n\n\ |
89549d7f | 1155 | See: 'show disassembler-options' for valid option values."), _("\ |
65b48a81 PB |
1156 | Show the disassembler options."), NULL, |
1157 | set_disassembler_options_sfunc, | |
1158 | show_disassembler_options_sfunc, | |
1159 | &setlist, &showlist); | |
1160 | set_cmd_completer (cmd, disassembler_options_completer); | |
1161 | } |