Commit | Line | Data |
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92df71f0 | 1 | /* Disassemble support for GDB. |
1bac305b | 2 | |
7b6bb8da JB |
3 | Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, |
4 | 2011 Free Software Foundation, Inc. | |
92df71f0 FN |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
92df71f0 FN |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
92df71f0 FN |
20 | |
21 | #include "defs.h" | |
22 | #include "target.h" | |
23 | #include "value.h" | |
24 | #include "ui-out.h" | |
25 | #include "gdb_string.h" | |
92df71f0 | 26 | #include "disasm.h" |
810ecf9f | 27 | #include "gdbcore.h" |
a89aa300 | 28 | #include "dis-asm.h" |
92df71f0 FN |
29 | |
30 | /* Disassemble functions. | |
31 | FIXME: We should get rid of all the duplicate code in gdb that does | |
0963b4bd | 32 | the same thing: disassemble_command() and the gdbtk variation. */ |
92df71f0 FN |
33 | |
34 | /* This Structure is used to store line number information. | |
35 | We need a different sort of line table from the normal one cuz we can't | |
36 | depend upon implicit line-end pc's for lines to do the | |
37 | reordering in this function. */ | |
38 | ||
39 | struct dis_line_entry | |
40 | { | |
41 | int line; | |
42 | CORE_ADDR start_pc; | |
43 | CORE_ADDR end_pc; | |
44 | }; | |
45 | ||
810ecf9f AC |
46 | /* Like target_read_memory, but slightly different parameters. */ |
47 | static int | |
1b0ba102 | 48 | dis_asm_read_memory (bfd_vma memaddr, gdb_byte *myaddr, unsigned int len, |
a89aa300 | 49 | struct disassemble_info *info) |
810ecf9f | 50 | { |
1b0ba102 | 51 | return target_read_memory (memaddr, myaddr, len); |
810ecf9f AC |
52 | } |
53 | ||
54 | /* Like memory_error with slightly different parameters. */ | |
55 | static void | |
a89aa300 AC |
56 | dis_asm_memory_error (int status, bfd_vma memaddr, |
57 | struct disassemble_info *info) | |
810ecf9f AC |
58 | { |
59 | memory_error (status, memaddr); | |
60 | } | |
61 | ||
62 | /* Like print_address with slightly different parameters. */ | |
63 | static void | |
64 | dis_asm_print_address (bfd_vma addr, struct disassemble_info *info) | |
65 | { | |
5af949e3 | 66 | struct gdbarch *gdbarch = info->application_data; |
9a619af0 | 67 | |
5af949e3 | 68 | print_address (gdbarch, addr, info->stream); |
810ecf9f AC |
69 | } |
70 | ||
92df71f0 | 71 | static int |
bde58177 | 72 | compare_lines (const void *mle1p, const void *mle2p) |
92df71f0 FN |
73 | { |
74 | struct dis_line_entry *mle1, *mle2; | |
75 | int val; | |
76 | ||
77 | mle1 = (struct dis_line_entry *) mle1p; | |
78 | mle2 = (struct dis_line_entry *) mle2p; | |
79 | ||
80 | val = mle1->line - mle2->line; | |
81 | ||
82 | if (val != 0) | |
83 | return val; | |
84 | ||
85 | return mle1->start_pc - mle2->start_pc; | |
86 | } | |
87 | ||
88 | static int | |
13274fc3 UW |
89 | dump_insns (struct gdbarch *gdbarch, struct ui_out *uiout, |
90 | struct disassemble_info * di, | |
92df71f0 | 91 | CORE_ADDR low, CORE_ADDR high, |
e6158f16 | 92 | int how_many, int flags, struct ui_stream *stb) |
92df71f0 FN |
93 | { |
94 | int num_displayed = 0; | |
95 | CORE_ADDR pc; | |
96 | ||
97 | /* parts of the symbolic representation of the address */ | |
98 | int unmapped; | |
92df71f0 FN |
99 | int offset; |
100 | int line; | |
3b31d625 | 101 | struct cleanup *ui_out_chain; |
92df71f0 FN |
102 | |
103 | for (pc = low; pc < high;) | |
104 | { | |
1211bce3 EZ |
105 | char *filename = NULL; |
106 | char *name = NULL; | |
107 | ||
92df71f0 FN |
108 | QUIT; |
109 | if (how_many >= 0) | |
110 | { | |
111 | if (num_displayed >= how_many) | |
112 | break; | |
113 | else | |
114 | num_displayed++; | |
115 | } | |
3b31d625 | 116 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
2b28d209 | 117 | ui_out_text (uiout, pc_prefix (pc)); |
5af949e3 | 118 | ui_out_field_core_addr (uiout, "address", gdbarch, pc); |
92df71f0 | 119 | |
22e722e1 | 120 | if (!build_address_symbolic (gdbarch, pc, 0, &name, &offset, &filename, |
92df71f0 FN |
121 | &line, &unmapped)) |
122 | { | |
123 | /* We don't care now about line, filename and | |
0963b4bd | 124 | unmapped. But we might in the future. */ |
92df71f0 | 125 | ui_out_text (uiout, " <"); |
9c419145 PP |
126 | if ((flags & DISASSEMBLY_OMIT_FNAME) == 0) |
127 | ui_out_field_string (uiout, "func-name", name); | |
92df71f0 FN |
128 | ui_out_text (uiout, "+"); |
129 | ui_out_field_int (uiout, "offset", offset); | |
130 | ui_out_text (uiout, ">:\t"); | |
131 | } | |
13adf674 DJ |
132 | else |
133 | ui_out_text (uiout, ":\t"); | |
134 | ||
92df71f0 FN |
135 | if (filename != NULL) |
136 | xfree (filename); | |
137 | if (name != NULL) | |
138 | xfree (name); | |
139 | ||
140 | ui_file_rewind (stb->stream); | |
e6158f16 HZ |
141 | if (flags & DISASSEMBLY_RAW_INSN) |
142 | { | |
143 | CORE_ADDR old_pc = pc; | |
144 | bfd_byte data; | |
145 | int status; | |
b716877b AB |
146 | const char *spacer = ""; |
147 | ||
148 | /* Build the opcodes using a temporary stream so we can | |
149 | write them out in a single go for the MI. */ | |
150 | struct ui_stream *opcode_stream = ui_out_stream_new (uiout); | |
151 | struct cleanup *cleanups = | |
152 | make_cleanup_ui_out_stream_delete (opcode_stream); | |
9a619af0 | 153 | |
e6158f16 HZ |
154 | pc += gdbarch_print_insn (gdbarch, pc, di); |
155 | for (;old_pc < pc; old_pc++) | |
156 | { | |
157 | status = (*di->read_memory_func) (old_pc, &data, 1, di); | |
158 | if (status != 0) | |
159 | (*di->memory_error_func) (status, old_pc, di); | |
b716877b AB |
160 | fprintf_filtered (opcode_stream->stream, "%s%02x", |
161 | spacer, (unsigned) data); | |
162 | spacer = " "; | |
e6158f16 | 163 | } |
b716877b | 164 | ui_out_field_stream (uiout, "opcodes", opcode_stream); |
e6158f16 | 165 | ui_out_text (uiout, "\t"); |
b716877b AB |
166 | |
167 | do_cleanups (cleanups); | |
e6158f16 HZ |
168 | } |
169 | else | |
170 | pc += gdbarch_print_insn (gdbarch, pc, di); | |
92df71f0 FN |
171 | ui_out_field_stream (uiout, "inst", stb); |
172 | ui_file_rewind (stb->stream); | |
3b31d625 | 173 | do_cleanups (ui_out_chain); |
92df71f0 FN |
174 | ui_out_text (uiout, "\n"); |
175 | } | |
176 | return num_displayed; | |
177 | } | |
178 | ||
179 | /* The idea here is to present a source-O-centric view of a | |
180 | function to the user. This means that things are presented | |
181 | in source order, with (possibly) out of order assembly | |
182 | immediately following. */ | |
0963b4bd | 183 | |
92df71f0 | 184 | static void |
13274fc3 | 185 | do_mixed_source_and_assembly (struct gdbarch *gdbarch, struct ui_out *uiout, |
92df71f0 FN |
186 | struct disassemble_info *di, int nlines, |
187 | struct linetable_entry *le, | |
188 | CORE_ADDR low, CORE_ADDR high, | |
189 | struct symtab *symtab, | |
e6158f16 | 190 | int how_many, int flags, struct ui_stream *stb) |
92df71f0 FN |
191 | { |
192 | int newlines = 0; | |
193 | struct dis_line_entry *mle; | |
194 | struct symtab_and_line sal; | |
195 | int i; | |
196 | int out_of_order = 0; | |
197 | int next_line = 0; | |
92df71f0 | 198 | int num_displayed = 0; |
3b31d625 | 199 | struct cleanup *ui_out_chain; |
0127c0d3 JJ |
200 | struct cleanup *ui_out_tuple_chain = make_cleanup (null_cleanup, 0); |
201 | struct cleanup *ui_out_list_chain = make_cleanup (null_cleanup, 0); | |
92df71f0 FN |
202 | |
203 | mle = (struct dis_line_entry *) alloca (nlines | |
204 | * sizeof (struct dis_line_entry)); | |
205 | ||
206 | /* Copy linetable entries for this function into our data | |
207 | structure, creating end_pc's and setting out_of_order as | |
208 | appropriate. */ | |
209 | ||
210 | /* First, skip all the preceding functions. */ | |
211 | ||
212 | for (i = 0; i < nlines - 1 && le[i].pc < low; i++); | |
213 | ||
214 | /* Now, copy all entries before the end of this function. */ | |
215 | ||
216 | for (; i < nlines - 1 && le[i].pc < high; i++) | |
217 | { | |
218 | if (le[i].line == le[i + 1].line && le[i].pc == le[i + 1].pc) | |
0963b4bd | 219 | continue; /* Ignore duplicates. */ |
92df71f0 FN |
220 | |
221 | /* Skip any end-of-function markers. */ | |
222 | if (le[i].line == 0) | |
223 | continue; | |
224 | ||
225 | mle[newlines].line = le[i].line; | |
226 | if (le[i].line > le[i + 1].line) | |
227 | out_of_order = 1; | |
228 | mle[newlines].start_pc = le[i].pc; | |
229 | mle[newlines].end_pc = le[i + 1].pc; | |
230 | newlines++; | |
231 | } | |
232 | ||
233 | /* If we're on the last line, and it's part of the function, | |
234 | then we need to get the end pc in a special way. */ | |
235 | ||
236 | if (i == nlines - 1 && le[i].pc < high) | |
237 | { | |
238 | mle[newlines].line = le[i].line; | |
239 | mle[newlines].start_pc = le[i].pc; | |
240 | sal = find_pc_line (le[i].pc, 0); | |
241 | mle[newlines].end_pc = sal.end; | |
242 | newlines++; | |
243 | } | |
244 | ||
245 | /* Now, sort mle by line #s (and, then by addresses within | |
0963b4bd | 246 | lines). */ |
92df71f0 FN |
247 | |
248 | if (out_of_order) | |
249 | qsort (mle, newlines, sizeof (struct dis_line_entry), compare_lines); | |
250 | ||
251 | /* Now, for each line entry, emit the specified lines (unless | |
252 | they have been emitted before), followed by the assembly code | |
253 | for that line. */ | |
254 | ||
3b31d625 | 255 | ui_out_chain = make_cleanup_ui_out_list_begin_end (uiout, "asm_insns"); |
92df71f0 FN |
256 | |
257 | for (i = 0; i < newlines; i++) | |
258 | { | |
92df71f0 FN |
259 | /* Print out everything from next_line to the current line. */ |
260 | if (mle[i].line >= next_line) | |
261 | { | |
262 | if (next_line != 0) | |
263 | { | |
0963b4bd | 264 | /* Just one line to print. */ |
92df71f0 FN |
265 | if (next_line == mle[i].line) |
266 | { | |
3b31d625 EZ |
267 | ui_out_tuple_chain |
268 | = make_cleanup_ui_out_tuple_begin_end (uiout, | |
269 | "src_and_asm_line"); | |
92df71f0 FN |
270 | print_source_lines (symtab, next_line, mle[i].line + 1, 0); |
271 | } | |
272 | else | |
273 | { | |
0963b4bd | 274 | /* Several source lines w/o asm instructions associated. */ |
92df71f0 FN |
275 | for (; next_line < mle[i].line; next_line++) |
276 | { | |
3b31d625 EZ |
277 | struct cleanup *ui_out_list_chain_line; |
278 | struct cleanup *ui_out_tuple_chain_line; | |
279 | ||
280 | ui_out_tuple_chain_line | |
281 | = make_cleanup_ui_out_tuple_begin_end (uiout, | |
282 | "src_and_asm_line"); | |
92df71f0 FN |
283 | print_source_lines (symtab, next_line, next_line + 1, |
284 | 0); | |
3b31d625 EZ |
285 | ui_out_list_chain_line |
286 | = make_cleanup_ui_out_list_begin_end (uiout, | |
287 | "line_asm_insn"); | |
288 | do_cleanups (ui_out_list_chain_line); | |
289 | do_cleanups (ui_out_tuple_chain_line); | |
92df71f0 FN |
290 | } |
291 | /* Print the last line and leave list open for | |
0963b4bd | 292 | asm instructions to be added. */ |
3b31d625 EZ |
293 | ui_out_tuple_chain |
294 | = make_cleanup_ui_out_tuple_begin_end (uiout, | |
295 | "src_and_asm_line"); | |
92df71f0 FN |
296 | print_source_lines (symtab, next_line, mle[i].line + 1, 0); |
297 | } | |
298 | } | |
299 | else | |
300 | { | |
3b31d625 | 301 | ui_out_tuple_chain |
3e43a32a MS |
302 | = make_cleanup_ui_out_tuple_begin_end (uiout, |
303 | "src_and_asm_line"); | |
92df71f0 FN |
304 | print_source_lines (symtab, mle[i].line, mle[i].line + 1, 0); |
305 | } | |
306 | ||
307 | next_line = mle[i].line + 1; | |
3b31d625 EZ |
308 | ui_out_list_chain |
309 | = make_cleanup_ui_out_list_begin_end (uiout, "line_asm_insn"); | |
92df71f0 FN |
310 | } |
311 | ||
13274fc3 UW |
312 | num_displayed += dump_insns (gdbarch, uiout, di, |
313 | mle[i].start_pc, mle[i].end_pc, | |
e6158f16 | 314 | how_many, flags, stb); |
0127c0d3 JJ |
315 | |
316 | /* When we've reached the end of the mle array, or we've seen the last | |
317 | assembly range for this source line, close out the list/tuple. */ | |
318 | if (i == (newlines - 1) || mle[i + 1].line > mle[i].line) | |
92df71f0 | 319 | { |
3b31d625 EZ |
320 | do_cleanups (ui_out_list_chain); |
321 | do_cleanups (ui_out_tuple_chain); | |
0127c0d3 JJ |
322 | ui_out_tuple_chain = make_cleanup (null_cleanup, 0); |
323 | ui_out_list_chain = make_cleanup (null_cleanup, 0); | |
92df71f0 | 324 | ui_out_text (uiout, "\n"); |
92df71f0 | 325 | } |
0127c0d3 JJ |
326 | if (how_many >= 0 && num_displayed >= how_many) |
327 | break; | |
92df71f0 | 328 | } |
3b31d625 | 329 | do_cleanups (ui_out_chain); |
92df71f0 FN |
330 | } |
331 | ||
332 | ||
333 | static void | |
13274fc3 UW |
334 | do_assembly_only (struct gdbarch *gdbarch, struct ui_out *uiout, |
335 | struct disassemble_info * di, | |
92df71f0 | 336 | CORE_ADDR low, CORE_ADDR high, |
e6158f16 | 337 | int how_many, int flags, struct ui_stream *stb) |
92df71f0 FN |
338 | { |
339 | int num_displayed = 0; | |
3b31d625 | 340 | struct cleanup *ui_out_chain; |
92df71f0 | 341 | |
3b31d625 | 342 | ui_out_chain = make_cleanup_ui_out_list_begin_end (uiout, "asm_insns"); |
92df71f0 | 343 | |
e6158f16 HZ |
344 | num_displayed = dump_insns (gdbarch, uiout, di, low, high, how_many, |
345 | flags, stb); | |
92df71f0 | 346 | |
3b31d625 | 347 | do_cleanups (ui_out_chain); |
92df71f0 FN |
348 | } |
349 | ||
92bf2b80 AC |
350 | /* Initialize the disassemble info struct ready for the specified |
351 | stream. */ | |
352 | ||
a0b31db1 | 353 | static int ATTRIBUTE_PRINTF (2, 3) |
242e8be5 AC |
354 | fprintf_disasm (void *stream, const char *format, ...) |
355 | { | |
356 | va_list args; | |
9a619af0 | 357 | |
242e8be5 AC |
358 | va_start (args, format); |
359 | vfprintf_filtered (stream, format, args); | |
360 | va_end (args); | |
361 | /* Something non -ve. */ | |
362 | return 0; | |
363 | } | |
364 | ||
a89aa300 | 365 | static struct disassemble_info |
92bf2b80 | 366 | gdb_disassemble_info (struct gdbarch *gdbarch, struct ui_file *file) |
92df71f0 | 367 | { |
a89aa300 | 368 | struct disassemble_info di; |
9a619af0 | 369 | |
242e8be5 | 370 | init_disassemble_info (&di, file, fprintf_disasm); |
2b6fd0d8 AC |
371 | di.flavour = bfd_target_unknown_flavour; |
372 | di.memory_error_func = dis_asm_memory_error; | |
373 | di.print_address_func = dis_asm_print_address; | |
374 | /* NOTE: cagney/2003-04-28: The original code, from the old Insight | |
375 | disassembler had a local optomization here. By default it would | |
376 | access the executable file, instead of the target memory (there | |
ce2826aa | 377 | was a growing list of exceptions though). Unfortunately, the |
2b6fd0d8 AC |
378 | heuristic was flawed. Commands like "disassemble &variable" |
379 | didn't work as they relied on the access going to the target. | |
380 | Further, it has been supperseeded by trust-read-only-sections | |
381 | (although that should be superseeded by target_trust..._p()). */ | |
382 | di.read_memory_func = dis_asm_read_memory; | |
22b0d388 | 383 | di.arch = gdbarch_bfd_arch_info (gdbarch)->arch; |
92bf2b80 AC |
384 | di.mach = gdbarch_bfd_arch_info (gdbarch)->mach; |
385 | di.endian = gdbarch_byte_order (gdbarch); | |
9d4fde75 | 386 | di.endian_code = gdbarch_byte_order_for_code (gdbarch); |
5af949e3 | 387 | di.application_data = gdbarch; |
2877b4cc | 388 | disassemble_init_for_target (&di); |
92bf2b80 AC |
389 | return di; |
390 | } | |
391 | ||
392 | void | |
13274fc3 | 393 | gdb_disassembly (struct gdbarch *gdbarch, struct ui_out *uiout, |
9c419145 PP |
394 | char *file_string, int flags, int how_many, |
395 | CORE_ADDR low, CORE_ADDR high) | |
92bf2b80 AC |
396 | { |
397 | struct ui_stream *stb = ui_out_stream_new (uiout); | |
398 | struct cleanup *cleanups = make_cleanup_ui_out_stream_delete (stb); | |
13274fc3 | 399 | struct disassemble_info di = gdb_disassemble_info (gdbarch, stb->stream); |
0963b4bd | 400 | /* To collect the instruction outputted from opcodes. */ |
92bf2b80 AC |
401 | struct symtab *symtab = NULL; |
402 | struct linetable_entry *le = NULL; | |
403 | int nlines = -1; | |
92df71f0 | 404 | |
0963b4bd | 405 | /* Assume symtab is valid for whole PC range. */ |
92df71f0 FN |
406 | symtab = find_pc_symtab (low); |
407 | ||
408 | if (symtab != NULL && symtab->linetable != NULL) | |
409 | { | |
410 | /* Convert the linetable to a bunch of my_line_entry's. */ | |
411 | le = symtab->linetable->item; | |
412 | nlines = symtab->linetable->nitems; | |
413 | } | |
414 | ||
e6158f16 | 415 | if (!(flags & DISASSEMBLY_SOURCE) || nlines <= 0 |
92df71f0 | 416 | || symtab == NULL || symtab->linetable == NULL) |
e6158f16 | 417 | do_assembly_only (gdbarch, uiout, &di, low, high, how_many, flags, stb); |
92df71f0 | 418 | |
e6158f16 | 419 | else if (flags & DISASSEMBLY_SOURCE) |
13274fc3 | 420 | do_mixed_source_and_assembly (gdbarch, uiout, &di, nlines, le, low, |
e6158f16 | 421 | high, symtab, how_many, flags, stb); |
92df71f0 | 422 | |
2b6fd0d8 | 423 | do_cleanups (cleanups); |
92df71f0 FN |
424 | gdb_flush (gdb_stdout); |
425 | } | |
810ecf9f | 426 | |
92bf2b80 | 427 | /* Print the instruction at address MEMADDR in debugged memory, |
a4642986 MR |
428 | on STREAM. Returns the length of the instruction, in bytes, |
429 | and, if requested, the number of branch delay slot instructions. */ | |
92bf2b80 AC |
430 | |
431 | int | |
13274fc3 UW |
432 | gdb_print_insn (struct gdbarch *gdbarch, CORE_ADDR memaddr, |
433 | struct ui_file *stream, int *branch_delay_insns) | |
92bf2b80 | 434 | { |
a4642986 MR |
435 | struct disassemble_info di; |
436 | int length; | |
437 | ||
13274fc3 UW |
438 | di = gdb_disassemble_info (gdbarch, stream); |
439 | length = gdbarch_print_insn (gdbarch, memaddr, &di); | |
a4642986 MR |
440 | if (branch_delay_insns) |
441 | { | |
442 | if (di.insn_info_valid) | |
443 | *branch_delay_insns = di.branch_delay_insns; | |
444 | else | |
445 | *branch_delay_insns = 0; | |
446 | } | |
447 | return length; | |
92bf2b80 | 448 | } |
eda5a4d7 PA |
449 | |
450 | static void | |
451 | do_ui_file_delete (void *arg) | |
452 | { | |
453 | ui_file_delete (arg); | |
454 | } | |
455 | ||
456 | /* Return the length in bytes of the instruction at address MEMADDR in | |
457 | debugged memory. */ | |
458 | ||
459 | int | |
460 | gdb_insn_length (struct gdbarch *gdbarch, CORE_ADDR addr) | |
461 | { | |
462 | static struct ui_file *null_stream = NULL; | |
463 | ||
464 | /* Dummy file descriptor for the disassembler. */ | |
465 | if (!null_stream) | |
466 | { | |
467 | null_stream = ui_file_new (); | |
468 | make_final_cleanup (do_ui_file_delete, null_stream); | |
469 | } | |
470 | ||
471 | return gdb_print_insn (gdbarch, addr, null_stream, NULL); | |
472 | } | |
473 | ||
474 | /* fprintf-function for gdb_buffered_insn_length. This function is a | |
475 | nop, we don't want to print anything, we just want to compute the | |
476 | length of the insn. */ | |
477 | ||
478 | static int ATTRIBUTE_PRINTF (2, 3) | |
479 | gdb_buffered_insn_length_fprintf (void *stream, const char *format, ...) | |
480 | { | |
481 | return 0; | |
482 | } | |
483 | ||
484 | /* Initialize a struct disassemble_info for gdb_buffered_insn_length. */ | |
485 | ||
486 | static void | |
487 | gdb_buffered_insn_length_init_dis (struct gdbarch *gdbarch, | |
488 | struct disassemble_info *di, | |
489 | const gdb_byte *insn, int max_len, | |
490 | CORE_ADDR addr) | |
491 | { | |
492 | init_disassemble_info (di, NULL, gdb_buffered_insn_length_fprintf); | |
493 | ||
494 | /* init_disassemble_info installs buffer_read_memory, etc. | |
495 | so we don't need to do that here. | |
496 | The cast is necessary until disassemble_info is const-ified. */ | |
497 | di->buffer = (gdb_byte *) insn; | |
498 | di->buffer_length = max_len; | |
499 | di->buffer_vma = addr; | |
500 | ||
501 | di->arch = gdbarch_bfd_arch_info (gdbarch)->arch; | |
502 | di->mach = gdbarch_bfd_arch_info (gdbarch)->mach; | |
503 | di->endian = gdbarch_byte_order (gdbarch); | |
504 | di->endian_code = gdbarch_byte_order_for_code (gdbarch); | |
505 | ||
506 | disassemble_init_for_target (di); | |
507 | } | |
508 | ||
509 | /* Return the length in bytes of INSN. MAX_LEN is the size of the | |
510 | buffer containing INSN. */ | |
511 | ||
512 | int | |
513 | gdb_buffered_insn_length (struct gdbarch *gdbarch, | |
514 | const gdb_byte *insn, int max_len, CORE_ADDR addr) | |
515 | { | |
516 | struct disassemble_info di; | |
517 | ||
518 | gdb_buffered_insn_length_init_dis (gdbarch, &di, insn, max_len, addr); | |
519 | ||
520 | return gdbarch_print_insn (gdbarch, addr, &di); | |
521 | } |