Commit | Line | Data |
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c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
0fb0cc75 JB |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
5 | 2009 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 21 | |
c906108c | 22 | #include "defs.h" |
c906108c SS |
23 | #include "value.h" |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "language.h" | |
28 | #include "frame.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "gdbcore.h" | |
31 | #include "target.h" | |
0378c332 | 32 | #include "source.h" |
c906108c SS |
33 | #include "breakpoint.h" |
34 | #include "demangle.h" | |
35 | #include "inferior.h" | |
36 | #include "annotate.h" | |
8b93c638 | 37 | #include "ui-out.h" |
fe898f56 | 38 | #include "block.h" |
b9362cc7 | 39 | #include "stack.h" |
de4f826b | 40 | #include "dictionary.h" |
60250e8b | 41 | #include "exceptions.h" |
898c62f5 | 42 | #include "reggroups.h" |
fc70c2a0 | 43 | #include "regcache.h" |
a77053c2 | 44 | #include "solib.h" |
033a42c2 | 45 | #include "valprint.h" |
8ea051c5 | 46 | #include "gdbthread.h" |
3567439c | 47 | #include "cp-support.h" |
30c33a9f | 48 | #include "disasm.h" |
c906108c | 49 | |
033a42c2 MK |
50 | #include "gdb_assert.h" |
51 | #include <ctype.h> | |
52 | #include "gdb_string.h" | |
c906108c | 53 | |
9a4105ab | 54 | void (*deprecated_selected_frame_level_changed_hook) (int); |
c906108c | 55 | |
88408340 JB |
56 | /* The possible choices of "set print frame-arguments, and the value |
57 | of this setting. */ | |
58 | ||
59 | static const char *print_frame_arguments_choices[] = | |
60 | {"all", "scalars", "none", NULL}; | |
476f7b68 | 61 | static const char *print_frame_arguments = "scalars"; |
88408340 | 62 | |
a58dd373 | 63 | /* Prototypes for local functions. */ |
c906108c | 64 | |
d9fcf2fb JM |
65 | static void print_frame_local_vars (struct frame_info *, int, |
66 | struct ui_file *); | |
c906108c | 67 | |
033a42c2 MK |
68 | static void print_frame (struct frame_info *frame, int print_level, |
69 | enum print_what print_what, int print_args, | |
c5394b80 JM |
70 | struct symtab_and_line sal); |
71 | ||
c906108c SS |
72 | /* Zero means do things normally; we are interacting directly with the |
73 | user. One means print the full filename and linenumber when a | |
74 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
75 | parse. Two means print similar annotations, but in many more | |
76 | cases and in a slightly different syntax. */ | |
77 | ||
78 | int annotation_level = 0; | |
c906108c | 79 | \f |
c5aa993b JM |
80 | |
81 | struct print_stack_frame_args | |
033a42c2 MK |
82 | { |
83 | struct frame_info *frame; | |
84 | int print_level; | |
85 | enum print_what print_what; | |
86 | int print_args; | |
87 | }; | |
88 | ||
89 | /* Show or print the frame arguments; stub for catch_errors. */ | |
90 | ||
c906108c | 91 | static int |
fba45db2 | 92 | print_stack_frame_stub (void *args) |
c906108c | 93 | { |
c789492a | 94 | struct print_stack_frame_args *p = args; |
033a42c2 | 95 | int center = (p->print_what == SRC_LINE || p->print_what == SRC_AND_LOC); |
c906108c | 96 | |
033a42c2 MK |
97 | print_frame_info (p->frame, p->print_level, p->print_what, p->print_args); |
98 | set_current_sal_from_frame (p->frame, center); | |
c906108c SS |
99 | return 0; |
100 | } | |
101 | ||
033a42c2 | 102 | /* Show or print a stack frame FRAME briefly. The output is format |
d762c46a AC |
103 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
104 | relative level, function name, argument list, and file name and | |
105 | line number. If the frame's PC is not at the beginning of the | |
106 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
107 | |
108 | void | |
033a42c2 | 109 | print_stack_frame (struct frame_info *frame, int print_level, |
0faf0076 | 110 | enum print_what print_what) |
c906108c SS |
111 | { |
112 | struct print_stack_frame_args args; | |
113 | ||
033a42c2 | 114 | args.frame = frame; |
0faf0076 AC |
115 | args.print_level = print_level; |
116 | args.print_what = print_what; | |
aaf9e9fd DP |
117 | /* For mi, alway print location and address. */ |
118 | args.print_what = ui_out_is_mi_like_p (uiout) ? LOC_AND_ADDRESS : print_what; | |
0faf0076 | 119 | args.print_args = 1; |
c906108c | 120 | |
5c3ce3f7 | 121 | catch_errors (print_stack_frame_stub, &args, "", RETURN_MASK_ERROR); |
7789c6f5 | 122 | } |
c906108c | 123 | |
c5aa993b JM |
124 | struct print_args_args |
125 | { | |
c906108c | 126 | struct symbol *func; |
033a42c2 | 127 | struct frame_info *frame; |
d9fcf2fb | 128 | struct ui_file *stream; |
c906108c SS |
129 | }; |
130 | ||
033a42c2 | 131 | static int print_args_stub (void *args); |
c906108c | 132 | |
033a42c2 MK |
133 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
134 | the offset of the first nameless argument, and NUM is the number of | |
135 | nameless arguments to print. FIRST is nonzero if this is the first | |
136 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
137 | |
138 | static void | |
033a42c2 | 139 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
140 | int first, struct ui_file *stream) |
141 | { | |
142 | int i; | |
143 | CORE_ADDR argsaddr; | |
144 | long arg_value; | |
145 | ||
146 | for (i = 0; i < num; i++) | |
147 | { | |
148 | QUIT; | |
033a42c2 | 149 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
150 | if (!argsaddr) |
151 | return; | |
152 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
153 | if (!first) | |
154 | fprintf_filtered (stream, ", "); | |
155 | fprintf_filtered (stream, "%ld", arg_value); | |
156 | first = 0; | |
157 | start += sizeof (int); | |
158 | } | |
159 | } | |
160 | ||
033a42c2 MK |
161 | /* Print the arguments of frame FRAME on STREAM, given the function |
162 | FUNC running in that frame (as a symbol), where NUM is the number | |
163 | of arguments according to the stack frame (or -1 if the number of | |
164 | arguments is unknown). */ | |
8d3b0994 | 165 | |
e3168615 | 166 | /* Note that currently the "number of arguments according to the |
033a42c2 | 167 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 168 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
169 | |
170 | static void | |
033a42c2 MK |
171 | print_frame_args (struct symbol *func, struct frame_info *frame, |
172 | int num, struct ui_file *stream) | |
8d3b0994 | 173 | { |
8d3b0994 | 174 | int first = 1; |
8d3b0994 | 175 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
176 | at the highest offset, or -1 if we haven't come to a stack |
177 | argument yet. */ | |
8d3b0994 | 178 | long highest_offset = -1; |
8d3b0994 AC |
179 | /* Number of ints of arguments that we have printed so far. */ |
180 | int args_printed = 0; | |
181 | struct cleanup *old_chain, *list_chain; | |
182 | struct ui_stream *stb; | |
a6bac58e TT |
183 | /* True if we should print arguments, false otherwise. */ |
184 | int print_args = strcmp (print_frame_arguments, "none"); | |
185 | /* True in "summary" mode, false otherwise. */ | |
186 | int summary = !strcmp (print_frame_arguments, "scalars"); | |
8d3b0994 AC |
187 | |
188 | stb = ui_out_stream_new (uiout); | |
189 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
190 | ||
191 | if (func) | |
192 | { | |
033a42c2 MK |
193 | struct block *b = SYMBOL_BLOCK_VALUE (func); |
194 | struct dict_iterator iter; | |
195 | struct symbol *sym; | |
196 | struct value *val; | |
8d3b0994 | 197 | |
de4f826b | 198 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 AC |
199 | { |
200 | QUIT; | |
201 | ||
202 | /* Keep track of the highest stack argument offset seen, and | |
203 | skip over any kinds of symbols we don't care about. */ | |
204 | ||
2a2d4dc3 AS |
205 | if (!SYMBOL_IS_ARGUMENT (sym)) |
206 | continue; | |
207 | ||
8d3b0994 AC |
208 | switch (SYMBOL_CLASS (sym)) |
209 | { | |
210 | case LOC_ARG: | |
211 | case LOC_REF_ARG: | |
212 | { | |
213 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 214 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
215 | |
216 | /* Compute address of next argument by adding the size of | |
217 | this argument and rounding to an int boundary. */ | |
218 | current_offset = | |
219 | ((current_offset + arg_size + sizeof (int) - 1) | |
220 | & ~(sizeof (int) - 1)); | |
221 | ||
033a42c2 MK |
222 | /* If this is the highest offset seen yet, set |
223 | highest_offset. */ | |
8d3b0994 AC |
224 | if (highest_offset == -1 |
225 | || (current_offset > highest_offset)) | |
226 | highest_offset = current_offset; | |
227 | ||
033a42c2 MK |
228 | /* Add the number of ints we're about to print to |
229 | args_printed. */ | |
8d3b0994 AC |
230 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
231 | } | |
232 | ||
033a42c2 MK |
233 | /* We care about types of symbols, but don't need to |
234 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 235 | case LOC_REGISTER: |
8d3b0994 | 236 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
237 | case LOC_COMPUTED: |
238 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 239 | default: |
2a2d4dc3 | 240 | break; |
8d3b0994 AC |
241 | } |
242 | ||
243 | /* We have to look up the symbol because arguments can have | |
244 | two entries (one a parameter, one a local) and the one we | |
245 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 246 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
247 | small structure and gcc2 when the argument type is float |
248 | and it is passed as a double and converted to float by | |
249 | the prologue (in the latter case the type of the LOC_ARG | |
250 | symbol is double and the type of the LOC_LOCAL symbol is | |
251 | float). */ | |
033a42c2 MK |
252 | /* But if the parameter name is null, don't try it. Null |
253 | parameter names occur on the RS/6000, for traceback | |
254 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 255 | |
3567439c | 256 | if (*SYMBOL_LINKAGE_NAME (sym)) |
8d3b0994 AC |
257 | { |
258 | struct symbol *nsym; | |
3567439c | 259 | nsym = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), |
2570f2b7 | 260 | b, VAR_DOMAIN, NULL); |
55765a25 | 261 | gdb_assert (nsym != NULL); |
2a2d4dc3 AS |
262 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER |
263 | && !SYMBOL_IS_ARGUMENT (nsym)) | |
8d3b0994 | 264 | { |
033a42c2 MK |
265 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
266 | that it was passed on the stack and loaded into a | |
267 | register, or passed in a register and stored in a | |
268 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
269 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
270 | |
271 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
272 | |
273 | (1) Because find_saved_registers may be slow for | |
274 | remote debugging. | |
275 | ||
276 | (2) Because registers are often re-used and stack | |
277 | slots rarely (never?) are. Therefore using | |
278 | the stack slot is much less likely to print | |
279 | garbage. | |
8d3b0994 AC |
280 | |
281 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
282 | |
283 | (1) So that the backtrace prints the same value | |
284 | as "print foo". I see no compelling reason | |
285 | why this needs to be the case; having the | |
286 | backtrace print the value which was passed | |
287 | in, and "print foo" print the value as | |
288 | modified within the called function, makes | |
289 | perfect sense to me. | |
290 | ||
291 | Additional note: It might be nice if "info args" | |
292 | displayed both values. | |
293 | ||
294 | One more note: There is a case with SPARC | |
295 | structure passing where we need to use the | |
296 | LOC_REGISTER, but this is dealt with by creating | |
297 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
298 | |
299 | /* Leave sym (the LOC_ARG) alone. */ | |
300 | ; | |
301 | } | |
302 | else | |
303 | sym = nsym; | |
304 | } | |
305 | ||
306 | /* Print the current arg. */ | |
307 | if (!first) | |
308 | ui_out_text (uiout, ", "); | |
309 | ui_out_wrap_hint (uiout, " "); | |
310 | ||
311 | annotate_arg_begin (); | |
312 | ||
313 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
314 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym), | |
033a42c2 MK |
315 | SYMBOL_LANGUAGE (sym), |
316 | DMGL_PARAMS | DMGL_ANSI); | |
8d3b0994 AC |
317 | ui_out_field_stream (uiout, "name", stb); |
318 | annotate_arg_name_end (); | |
319 | ui_out_text (uiout, "="); | |
320 | ||
a6bac58e | 321 | if (print_args) |
88408340 JB |
322 | { |
323 | /* Avoid value_print because it will deref ref parameters. | |
324 | We just want to print their addresses. Print ??? for | |
325 | args whose address we do not know. We pass 2 as | |
326 | "recurse" to val_print because our standard indentation | |
327 | here is 4 spaces, and val_print indents 2 for each | |
328 | recurse. */ | |
329 | val = read_var_value (sym, frame); | |
330 | ||
331 | annotate_arg_value (val == NULL ? NULL : value_type (val)); | |
332 | ||
333 | if (val) | |
334 | { | |
d8ca156b | 335 | const struct language_defn *language; |
79a45b7d | 336 | struct value_print_options opts; |
d8ca156b JB |
337 | |
338 | /* Use the appropriate language to display our symbol, | |
339 | unless the user forced the language to a specific | |
340 | language. */ | |
341 | if (language_mode == language_mode_auto) | |
342 | language = language_def (SYMBOL_LANGUAGE (sym)); | |
343 | else | |
344 | language = current_language; | |
345 | ||
79a45b7d TT |
346 | get_raw_print_options (&opts); |
347 | opts.deref_ref = 0; | |
a6bac58e TT |
348 | opts.summary = summary; |
349 | common_val_print (val, stb->stream, 2, &opts, language); | |
88408340 JB |
350 | ui_out_field_stream (uiout, "value", stb); |
351 | } | |
352 | else | |
353 | ui_out_text (uiout, "???"); | |
354 | } | |
355 | else | |
356 | ui_out_text (uiout, "..."); | |
8d3b0994 | 357 | |
8d3b0994 AC |
358 | |
359 | /* Invoke ui_out_tuple_end. */ | |
360 | do_cleanups (list_chain); | |
361 | ||
362 | annotate_arg_end (); | |
363 | ||
364 | first = 0; | |
365 | } | |
366 | } | |
367 | ||
368 | /* Don't print nameless args in situations where we don't know | |
369 | enough about the stack to find them. */ | |
370 | if (num != -1) | |
371 | { | |
372 | long start; | |
373 | ||
374 | if (highest_offset == -1) | |
7500260a | 375 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
376 | else |
377 | start = highest_offset; | |
378 | ||
033a42c2 | 379 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
380 | first, stream); |
381 | } | |
033a42c2 | 382 | |
8d3b0994 AC |
383 | do_cleanups (old_chain); |
384 | } | |
385 | ||
033a42c2 | 386 | /* Stub for catch_errors. */ |
c906108c SS |
387 | |
388 | static int | |
4efb68b1 | 389 | print_args_stub (void *args) |
c906108c | 390 | { |
033a42c2 | 391 | struct print_args_args *p = args; |
12368003 | 392 | struct gdbarch *gdbarch = get_frame_arch (p->frame); |
c906108c | 393 | int numargs; |
c906108c | 394 | |
12368003 | 395 | if (gdbarch_frame_num_args_p (gdbarch)) |
983a287a | 396 | { |
12368003 | 397 | numargs = gdbarch_frame_num_args (gdbarch, p->frame); |
983a287a AC |
398 | gdb_assert (numargs >= 0); |
399 | } | |
400 | else | |
401 | numargs = -1; | |
033a42c2 | 402 | print_frame_args (p->func, p->frame, numargs, p->stream); |
c906108c SS |
403 | return 0; |
404 | } | |
405 | ||
033a42c2 MK |
406 | /* Set the current source and line to the location given by frame |
407 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
408 | line is in the center of the next 'list'. */ | |
c789492a | 409 | |
7abfe014 | 410 | void |
033a42c2 | 411 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
412 | { |
413 | struct symtab_and_line sal; | |
414 | ||
033a42c2 | 415 | find_frame_sal (frame, &sal); |
c789492a FL |
416 | if (sal.symtab) |
417 | { | |
418 | if (center) | |
419 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
420 | set_current_source_symtab_and_line (&sal); | |
421 | } | |
422 | } | |
423 | ||
30c33a9f HZ |
424 | /* If ON, GDB will display disassembly of the next source line when |
425 | execution of the program being debugged stops. | |
481df73e HZ |
426 | If AUTO (which is the default), or there's no line info to determine |
427 | the source line of the next instruction, display disassembly of next | |
428 | instruction instead. */ | |
30c33a9f HZ |
429 | |
430 | static enum auto_boolean disassemble_next_line; | |
431 | ||
432 | static void | |
433 | show_disassemble_next_line (struct ui_file *file, int from_tty, | |
434 | struct cmd_list_element *c, | |
435 | const char *value) | |
436 | { | |
437 | fprintf_filtered (file, _("\ | |
438 | Debugger's willingness to use disassemble-next-line is %s.\n"), | |
439 | value); | |
440 | } | |
441 | ||
442 | /* Show assembly codes; stub for catch_errors. */ | |
443 | ||
444 | struct gdb_disassembly_stub_args | |
445 | { | |
446 | int how_many; | |
447 | CORE_ADDR low; | |
448 | CORE_ADDR high; | |
449 | }; | |
450 | ||
451 | static void | |
452 | gdb_disassembly_stub (void *args) | |
453 | { | |
454 | struct gdb_disassembly_stub_args *p = args; | |
455 | gdb_disassembly (uiout, 0, 0, p->how_many, p->low, p->high); | |
456 | } | |
457 | ||
458 | /* Use TRY_CATCH to catch the exception from the gdb_disassembly | |
459 | because it will be broken by filter sometime. */ | |
460 | ||
461 | static void | |
462 | do_gdb_disassembly (int how_many, CORE_ADDR low, CORE_ADDR high) | |
463 | { | |
464 | volatile struct gdb_exception exception; | |
465 | struct gdb_disassembly_stub_args args; | |
466 | ||
467 | args.how_many = how_many; | |
468 | args.low = low; | |
469 | args.high = high; | |
470 | TRY_CATCH (exception, RETURN_MASK_ALL) | |
471 | { | |
472 | gdb_disassembly_stub (&args); | |
473 | } | |
465f42bb JB |
474 | /* If an exception was thrown while doing the disassembly, print |
475 | the error message, to give the user a clue of what happened. */ | |
476 | if (exception.reason == RETURN_ERROR) | |
477 | exception_print (gdb_stderr, exception); | |
30c33a9f HZ |
478 | } |
479 | ||
033a42c2 MK |
480 | /* Print information about frame FRAME. The output is format according |
481 | to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of | |
482 | PRINT_WHAT is: | |
483 | ||
484 | SRC_LINE: Print only source line. | |
485 | LOCATION: Print only location. | |
486 | LOC_AND_SRC: Print location and source line. | |
487 | ||
488 | Used in "where" output, and to emit breakpoint or step | |
489 | messages. */ | |
c906108c | 490 | |
7789c6f5 | 491 | void |
033a42c2 | 492 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 493 | enum print_what print_what, int print_args) |
c906108c SS |
494 | { |
495 | struct symtab_and_line sal; | |
c5394b80 JM |
496 | int source_print; |
497 | int location_print; | |
c906108c | 498 | |
033a42c2 MK |
499 | if (get_frame_type (frame) == DUMMY_FRAME |
500 | || get_frame_type (frame) == SIGTRAMP_FRAME) | |
c906108c | 501 | { |
075559bc AC |
502 | struct cleanup *uiout_cleanup |
503 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 504 | |
033a42c2 MK |
505 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
506 | get_frame_pc (frame)); | |
6a3fe0a4 | 507 | |
c906108c | 508 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 509 | to list for this frame. */ |
0faf0076 | 510 | if (print_level) |
52c6a6ac JJ |
511 | { |
512 | ui_out_text (uiout, "#"); | |
0faf0076 | 513 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 514 | frame_relative_level (frame)); |
52c6a6ac | 515 | } |
075559bc | 516 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 517 | { |
075559bc | 518 | annotate_frame_address (); |
033a42c2 | 519 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
075559bc | 520 | annotate_frame_address_end (); |
52c6a6ac | 521 | } |
6a3fe0a4 | 522 | |
033a42c2 | 523 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
524 | { |
525 | annotate_function_call (); | |
526 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
527 | } | |
033a42c2 | 528 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
529 | { |
530 | annotate_signal_handler_caller (); | |
531 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
532 | } | |
533 | ui_out_text (uiout, "\n"); | |
c906108c | 534 | annotate_frame_end (); |
075559bc AC |
535 | |
536 | do_cleanups (uiout_cleanup); | |
c906108c SS |
537 | return; |
538 | } | |
539 | ||
033a42c2 MK |
540 | /* If FRAME is not the innermost frame, that normally means that |
541 | FRAME->pc points to *after* the call instruction, and we want to | |
542 | get the line containing the call, never the next line. But if | |
543 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
544 | next frame was not entered as the result of a call, and we want | |
545 | to get the line containing FRAME->pc. */ | |
546 | find_frame_sal (frame, &sal); | |
c906108c | 547 | |
0faf0076 AC |
548 | location_print = (print_what == LOCATION |
549 | || print_what == LOC_AND_ADDRESS | |
550 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
551 | |
552 | if (location_print || !sal.symtab) | |
033a42c2 | 553 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 554 | |
0faf0076 | 555 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 556 | |
30c33a9f HZ |
557 | /* If disassemble-next-line is set to auto or on and doesn't have |
558 | the line debug messages for $pc, output the next instruction. */ | |
559 | if ((disassemble_next_line == AUTO_BOOLEAN_AUTO | |
560 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
561 | && source_print && !sal.symtab) | |
562 | do_gdb_disassembly (1, get_frame_pc (frame), get_frame_pc (frame) + 1); | |
563 | ||
c5394b80 JM |
564 | if (source_print && sal.symtab) |
565 | { | |
566 | int done = 0; | |
0faf0076 | 567 | int mid_statement = ((print_what == SRC_LINE) |
033a42c2 | 568 | && (get_frame_pc (frame) != sal.pc)); |
c5394b80 JM |
569 | |
570 | if (annotation_level) | |
571 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 572 | get_frame_pc (frame)); |
c5394b80 JM |
573 | if (!done) |
574 | { | |
9a4105ab | 575 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
576 | deprecated_print_frame_info_listing_hook (sal.symtab, |
577 | sal.line, | |
578 | sal.line + 1, 0); | |
ba4bbdcb | 579 | else |
c5394b80 | 580 | { |
79a45b7d TT |
581 | struct value_print_options opts; |
582 | get_user_print_options (&opts); | |
ba4bbdcb KS |
583 | /* We used to do this earlier, but that is clearly |
584 | wrong. This function is used by many different | |
585 | parts of gdb, including normal_stop in infrun.c, | |
586 | which uses this to print out the current PC | |
587 | when we stepi/nexti into the middle of a source | |
588 | line. Only the command line really wants this | |
589 | behavior. Other UIs probably would like the | |
cbd3c883 | 590 | ability to decide for themselves if it is desired. */ |
79a45b7d | 591 | if (opts.addressprint && mid_statement) |
ba4bbdcb | 592 | { |
033a42c2 | 593 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
ba4bbdcb | 594 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
595 | } |
596 | ||
597 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 598 | } |
c5394b80 | 599 | } |
30c33a9f HZ |
600 | |
601 | /* If disassemble-next-line is set to on and there is line debug | |
602 | messages, output assembly codes for next line. */ | |
603 | if (disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
604 | do_gdb_disassembly (-1, get_frame_pc (frame), sal.end); | |
c5394b80 JM |
605 | } |
606 | ||
0faf0076 | 607 | if (print_what != LOCATION) |
033a42c2 | 608 | set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line); |
c5394b80 JM |
609 | |
610 | annotate_frame_end (); | |
611 | ||
612 | gdb_flush (gdb_stdout); | |
613 | } | |
614 | ||
f8f6f20b TJB |
615 | /* Attempt to obtain the FUNNAME and FUNLANG of the function corresponding |
616 | to FRAME. */ | |
617 | void | |
618 | find_frame_funname (struct frame_info *frame, char **funname, | |
619 | enum language *funlang) | |
c5394b80 JM |
620 | { |
621 | struct symbol *func; | |
8b93c638 | 622 | |
f8f6f20b TJB |
623 | *funname = NULL; |
624 | *funlang = language_unknown; | |
c5394b80 | 625 | |
033a42c2 | 626 | func = find_pc_function (get_frame_address_in_block (frame)); |
c906108c SS |
627 | if (func) |
628 | { | |
629 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
630 | function (when we are in the first function in a file which |
631 | is compiled without debugging symbols, the previous function | |
632 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
633 | that is supposed to tell us where the file with debugging |
634 | symbols ends has been truncated by ar because it is longer | |
635 | than 15 characters). This also occurs if the user uses asm() | |
636 | to create a function but not stabs for it (in a file compiled | |
637 | with -g). | |
c5aa993b JM |
638 | |
639 | So look in the minimal symbol tables as well, and if it comes | |
640 | up with a larger address for the function use that instead. | |
033a42c2 MK |
641 | I don't think this can ever cause any problems; there |
642 | shouldn't be any minimal symbols in the middle of a function; | |
643 | if this is ever changed many parts of GDB will need to be | |
644 | changed (and we'll create a find_pc_minimal_function or some | |
645 | such). */ | |
646 | ||
647 | struct minimal_symbol *msymbol = | |
648 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 649 | |
c906108c | 650 | if (msymbol != NULL |
c5aa993b | 651 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
652 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
653 | { | |
c906108c SS |
654 | /* We also don't know anything about the function besides |
655 | its address and name. */ | |
656 | func = 0; | |
f8f6f20b TJB |
657 | *funname = SYMBOL_PRINT_NAME (msymbol); |
658 | *funlang = SYMBOL_LANGUAGE (msymbol); | |
c906108c SS |
659 | } |
660 | else | |
661 | { | |
f8f6f20b TJB |
662 | *funname = SYMBOL_PRINT_NAME (func); |
663 | *funlang = SYMBOL_LANGUAGE (func); | |
664 | if (*funlang == language_cplus) | |
c5aa993b | 665 | { |
033a42c2 MK |
666 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
667 | to display the demangled name that we already have | |
668 | stored in the symbol table, but we stored a version | |
669 | with DMGL_PARAMS turned on, and here we don't want to | |
3567439c | 670 | display parameters. So remove the parameters. */ |
f8f6f20b | 671 | char *func_only = cp_remove_params (*funname); |
3567439c DJ |
672 | if (func_only) |
673 | { | |
f8f6f20b | 674 | *funname = func_only; |
3567439c DJ |
675 | make_cleanup (xfree, func_only); |
676 | } | |
c5aa993b | 677 | } |
c906108c SS |
678 | } |
679 | } | |
680 | else | |
681 | { | |
033a42c2 MK |
682 | struct minimal_symbol *msymbol = |
683 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
684 | ||
c906108c SS |
685 | if (msymbol != NULL) |
686 | { | |
f8f6f20b TJB |
687 | *funname = SYMBOL_PRINT_NAME (msymbol); |
688 | *funlang = SYMBOL_LANGUAGE (msymbol); | |
c906108c SS |
689 | } |
690 | } | |
f8f6f20b TJB |
691 | } |
692 | ||
693 | static void | |
694 | print_frame (struct frame_info *frame, int print_level, | |
695 | enum print_what print_what, int print_args, | |
696 | struct symtab_and_line sal) | |
697 | { | |
698 | char *funname = NULL; | |
699 | enum language funlang = language_unknown; | |
700 | struct ui_stream *stb; | |
701 | struct cleanup *old_chain, *list_chain; | |
702 | struct value_print_options opts; | |
703 | ||
704 | stb = ui_out_stream_new (uiout); | |
705 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
706 | ||
707 | find_frame_funname (frame, &funname, &funlang); | |
c906108c | 708 | |
033a42c2 MK |
709 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
710 | get_frame_pc (frame)); | |
c5394b80 | 711 | |
666547aa | 712 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
c5394b80 | 713 | |
0faf0076 | 714 | if (print_level) |
8b93c638 | 715 | { |
8b93c638 | 716 | ui_out_text (uiout, "#"); |
0faf0076 | 717 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 718 | frame_relative_level (frame)); |
8b93c638 | 719 | } |
79a45b7d TT |
720 | get_user_print_options (&opts); |
721 | if (opts.addressprint) | |
033a42c2 | 722 | if (get_frame_pc (frame) != sal.pc || !sal.symtab |
0faf0076 | 723 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
724 | { |
725 | annotate_frame_address (); | |
033a42c2 | 726 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
8b93c638 JM |
727 | annotate_frame_address_end (); |
728 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
729 | } |
730 | annotate_frame_function_name (); | |
033a42c2 MK |
731 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
732 | funlang, DMGL_ANSI); | |
8b93c638 JM |
733 | ui_out_field_stream (uiout, "func", stb); |
734 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
735 | annotate_frame_args (); |
736 | ||
8b93c638 | 737 | ui_out_text (uiout, " ("); |
0faf0076 | 738 | if (print_args) |
c906108c | 739 | { |
c5394b80 | 740 | struct print_args_args args; |
d493eb33 | 741 | struct cleanup *args_list_chain; |
033a42c2 | 742 | args.frame = frame; |
f8f6f20b | 743 | args.func = find_pc_function (get_frame_address_in_block (frame)); |
c5394b80 | 744 | args.stream = gdb_stdout; |
68c81b54 | 745 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
5c3ce3f7 | 746 | catch_errors (print_args_stub, &args, "", RETURN_MASK_ERROR); |
033a42c2 MK |
747 | /* FIXME: ARGS must be a list. If one argument is a string it |
748 | will have " that will not be properly escaped. */ | |
666547aa | 749 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 750 | do_cleanups (args_list_chain); |
c5394b80 JM |
751 | QUIT; |
752 | } | |
8b93c638 | 753 | ui_out_text (uiout, ")"); |
c5394b80 JM |
754 | if (sal.symtab && sal.symtab->filename) |
755 | { | |
756 | annotate_frame_source_begin (); | |
8b93c638 JM |
757 | ui_out_wrap_hint (uiout, " "); |
758 | ui_out_text (uiout, " at "); | |
759 | annotate_frame_source_file (); | |
760 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
761 | if (ui_out_is_mi_like_p (uiout)) |
762 | { | |
763 | const char *fullname = symtab_to_fullname (sal.symtab); | |
764 | if (fullname != NULL) | |
765 | ui_out_field_string (uiout, "fullname", fullname); | |
766 | } | |
8b93c638 JM |
767 | annotate_frame_source_file_end (); |
768 | ui_out_text (uiout, ":"); | |
769 | annotate_frame_source_line (); | |
770 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
771 | annotate_frame_source_end (); |
772 | } | |
c906108c | 773 | |
c5394b80 | 774 | if (!funname || (!sal.symtab || !sal.symtab->filename)) |
c906108c | 775 | { |
a77053c2 | 776 | #ifdef PC_SOLIB |
033a42c2 | 777 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 778 | #else |
f5c9a895 | 779 | char *lib = solib_name_from_address (get_frame_pc (frame)); |
a77053c2 | 780 | #endif |
c5394b80 | 781 | if (lib) |
c906108c | 782 | { |
c5394b80 | 783 | annotate_frame_where (); |
8b93c638 JM |
784 | ui_out_wrap_hint (uiout, " "); |
785 | ui_out_text (uiout, " from "); | |
786 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 787 | } |
c906108c | 788 | } |
e514a9d6 | 789 | |
666547aa | 790 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 791 | do_cleanups (list_chain); |
8b93c638 JM |
792 | ui_out_text (uiout, "\n"); |
793 | do_cleanups (old_chain); | |
c906108c SS |
794 | } |
795 | \f | |
c5aa993b | 796 | |
033a42c2 MK |
797 | /* Read a frame specification in whatever the appropriate format is |
798 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
799 | specification is in any way invalid (so this function never returns | |
800 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
801 | the default selected frame was used. */ | |
c906108c | 802 | |
1c8831c5 AC |
803 | static struct frame_info * |
804 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
805 | int *selected_frame_p) | |
c906108c | 806 | { |
1c8831c5 AC |
807 | int numargs; |
808 | struct value *args[4]; | |
809 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 810 | |
1c8831c5 AC |
811 | if (frame_exp == NULL) |
812 | numargs = 0; | |
813 | else | |
c906108c | 814 | { |
1c8831c5 | 815 | char *addr_string; |
c906108c SS |
816 | struct cleanup *tmp_cleanup; |
817 | ||
1c8831c5 AC |
818 | numargs = 0; |
819 | while (1) | |
c906108c | 820 | { |
1c8831c5 AC |
821 | char *addr_string; |
822 | struct cleanup *cleanup; | |
823 | const char *p; | |
824 | ||
825 | /* Skip leading white space, bail of EOL. */ | |
826 | while (isspace (*frame_exp)) | |
827 | frame_exp++; | |
828 | if (!*frame_exp) | |
829 | break; | |
c906108c | 830 | |
1c8831c5 AC |
831 | /* Parse the argument, extract it, save it. */ |
832 | for (p = frame_exp; | |
833 | *p && !isspace (*p); | |
834 | p++); | |
835 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 836 | frame_exp = p; |
1c8831c5 AC |
837 | cleanup = make_cleanup (xfree, addr_string); |
838 | ||
839 | /* NOTE: Parse and evaluate expression, but do not use | |
840 | functions such as parse_and_eval_long or | |
841 | parse_and_eval_address to also extract the value. | |
842 | Instead value_as_long and value_as_address are used. | |
843 | This avoids problems with expressions that contain | |
844 | side-effects. */ | |
845 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 846 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
847 | args[numargs++] = parse_and_eval (addr_string); |
848 | ||
849 | do_cleanups (cleanup); | |
c906108c SS |
850 | } |
851 | } | |
852 | ||
1c8831c5 AC |
853 | /* If no args, default to the selected frame. */ |
854 | if (numargs == 0) | |
c906108c | 855 | { |
1c8831c5 AC |
856 | if (selected_frame_p != NULL) |
857 | (*selected_frame_p) = 1; | |
858 | return get_selected_frame (message); | |
859 | } | |
c906108c | 860 | |
1c8831c5 AC |
861 | /* None of the remaining use the selected frame. */ |
862 | if (selected_frame_p != NULL) | |
98f276a0 | 863 | (*selected_frame_p) = 0; |
c906108c | 864 | |
1c8831c5 AC |
865 | /* Assume the single arg[0] is an integer, and try using that to |
866 | select a frame relative to current. */ | |
867 | if (numargs == 1) | |
868 | { | |
869 | struct frame_info *fid; | |
870 | int level = value_as_long (args[0]); | |
871 | fid = find_relative_frame (get_current_frame (), &level); | |
872 | if (level == 0) | |
873 | /* find_relative_frame was successful */ | |
874 | return fid; | |
875 | } | |
c906108c | 876 | |
1c8831c5 AC |
877 | /* Convert each value into a corresponding address. */ |
878 | { | |
879 | int i; | |
880 | for (i = 0; i < numargs; i++) | |
1e275f79 | 881 | addrs[i] = value_as_address (args[i]); |
1c8831c5 | 882 | } |
c5aa993b | 883 | |
1c8831c5 AC |
884 | /* Assume that the single arg[0] is an address, use that to identify |
885 | a frame with a matching ID. Should this also accept stack/pc or | |
886 | stack/pc/special. */ | |
887 | if (numargs == 1) | |
888 | { | |
889 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
890 | struct frame_info *fid; | |
891 | ||
1c8831c5 AC |
892 | /* If (s)he specifies the frame with an address, he deserves |
893 | what (s)he gets. Still, give the highest one that matches. | |
894 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
895 | know). */ | |
896 | for (fid = get_current_frame (); | |
897 | fid != NULL; | |
898 | fid = get_prev_frame (fid)) | |
899 | { | |
900 | if (frame_id_eq (id, get_frame_id (fid))) | |
901 | { | |
eb2f4a08 DJ |
902 | while (frame_id_eq (id, frame_unwind_id (fid))) |
903 | fid = get_prev_frame (fid); | |
1c8831c5 AC |
904 | return fid; |
905 | } | |
906 | } | |
c906108c SS |
907 | } |
908 | ||
1c8831c5 AC |
909 | /* We couldn't identify the frame as an existing frame, but |
910 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
911 | if (numargs == 1) |
912 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
913 | else if (numargs == 2) |
914 | return create_new_frame (addrs[0], addrs[1]); | |
915 | else | |
8a3fe4f8 | 916 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
917 | } |
918 | ||
9c833c82 | 919 | static struct frame_info * |
1c8831c5 AC |
920 | parse_frame_specification (char *frame_exp) |
921 | { | |
922 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
923 | } |
924 | ||
033a42c2 MK |
925 | /* Print verbosely the selected frame or the frame at address |
926 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
927 | |
928 | static void | |
fba45db2 | 929 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
930 | { |
931 | struct frame_info *fi; | |
932 | struct symtab_and_line sal; | |
933 | struct symbol *func; | |
934 | struct symtab *s; | |
935 | struct frame_info *calling_frame_info; | |
936 | int i, count, numregs; | |
937 | char *funname = 0; | |
938 | enum language funlang = language_unknown; | |
82de1e5b | 939 | const char *pc_regname; |
1c8831c5 | 940 | int selected_frame_p; |
7500260a | 941 | struct gdbarch *gdbarch; |
3567439c | 942 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 943 | |
1c8831c5 | 944 | fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p); |
12368003 | 945 | gdbarch = get_frame_arch (fi); |
c906108c | 946 | |
82de1e5b AC |
947 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
948 | is not a good name. */ | |
12368003 | 949 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 950 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
951 | easily not match that of the internal value returned by |
952 | get_frame_pc(). */ | |
12368003 | 953 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 954 | else |
3e8c568d | 955 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
956 | architectures will often have a hardware register called "pc", |
957 | and that register's value, again, can easily not match | |
958 | get_frame_pc(). */ | |
959 | pc_regname = "pc"; | |
960 | ||
1058bca7 | 961 | find_frame_sal (fi, &sal); |
c906108c | 962 | func = get_frame_function (fi); |
1058bca7 | 963 | /* FIXME: cagney/2002-11-28: Why bother? Won't sal.symtab contain |
033a42c2 | 964 | the same value? */ |
bdd78e62 | 965 | s = find_pc_symtab (get_frame_pc (fi)); |
c906108c SS |
966 | if (func) |
967 | { | |
3567439c | 968 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b JM |
969 | funlang = SYMBOL_LANGUAGE (func); |
970 | if (funlang == language_cplus) | |
971 | { | |
3567439c DJ |
972 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
973 | to display the demangled name that we already have | |
974 | stored in the symbol table, but we stored a version | |
975 | with DMGL_PARAMS turned on, and here we don't want to | |
976 | display parameters. So remove the parameters. */ | |
977 | char *func_only = cp_remove_params (funname); | |
978 | if (func_only) | |
979 | { | |
980 | funname = func_only; | |
981 | make_cleanup (xfree, func_only); | |
982 | } | |
c5aa993b | 983 | } |
c906108c SS |
984 | } |
985 | else | |
986 | { | |
033a42c2 MK |
987 | struct minimal_symbol *msymbol; |
988 | ||
989 | msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c906108c SS |
990 | if (msymbol != NULL) |
991 | { | |
3567439c | 992 | funname = SYMBOL_PRINT_NAME (msymbol); |
c906108c SS |
993 | funlang = SYMBOL_LANGUAGE (msymbol); |
994 | } | |
995 | } | |
996 | calling_frame_info = get_prev_frame (fi); | |
997 | ||
1c8831c5 | 998 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 999 | { |
a3f17187 | 1000 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 1001 | frame_relative_level (fi)); |
c906108c SS |
1002 | } |
1003 | else | |
1004 | { | |
a3f17187 | 1005 | printf_filtered (_("Stack frame at ")); |
c906108c | 1006 | } |
ed49a04f | 1007 | fputs_filtered (paddress (get_frame_base (fi)), gdb_stdout); |
9c833c82 | 1008 | printf_filtered (":\n"); |
82de1e5b | 1009 | printf_filtered (" %s = ", pc_regname); |
ed49a04f | 1010 | fputs_filtered (paddress (get_frame_pc (fi)), gdb_stdout); |
c906108c SS |
1011 | |
1012 | wrap_here (" "); | |
1013 | if (funname) | |
1014 | { | |
1015 | printf_filtered (" in "); | |
1016 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
1017 | DMGL_ANSI | DMGL_PARAMS); | |
1018 | } | |
1019 | wrap_here (" "); | |
1020 | if (sal.symtab) | |
1021 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
1022 | puts_filtered ("; "); | |
1023 | wrap_here (" "); | |
82de1e5b | 1024 | printf_filtered ("saved %s ", pc_regname); |
eb2f4a08 | 1025 | fputs_filtered (paddress (frame_pc_unwind (fi)), gdb_stdout); |
c906108c SS |
1026 | printf_filtered ("\n"); |
1027 | ||
55feb689 DJ |
1028 | if (calling_frame_info == NULL) |
1029 | { | |
1030 | enum unwind_stop_reason reason; | |
1031 | ||
1032 | reason = get_frame_unwind_stop_reason (fi); | |
1033 | if (reason != UNWIND_NO_REASON) | |
1034 | printf_filtered (_(" Outermost frame: %s\n"), | |
1035 | frame_stop_reason_string (reason)); | |
1036 | } | |
1037 | ||
c906108c SS |
1038 | if (calling_frame_info) |
1039 | { | |
1040 | printf_filtered (" called by frame at "); | |
ed49a04f MD |
1041 | fputs_filtered (paddress (get_frame_base (calling_frame_info)), |
1042 | gdb_stdout); | |
c906108c | 1043 | } |
75e3c1f9 | 1044 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
1045 | puts_filtered (","); |
1046 | wrap_here (" "); | |
75e3c1f9 | 1047 | if (get_next_frame (fi)) |
c906108c SS |
1048 | { |
1049 | printf_filtered (" caller of frame at "); | |
ed49a04f MD |
1050 | fputs_filtered (paddress (get_frame_base (get_next_frame (fi))), |
1051 | gdb_stdout); | |
c906108c | 1052 | } |
75e3c1f9 | 1053 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1054 | puts_filtered ("\n"); |
55feb689 | 1055 | |
c906108c | 1056 | if (s) |
1058bca7 AC |
1057 | printf_filtered (" source language %s.\n", |
1058 | language_str (s->language)); | |
c906108c | 1059 | |
c906108c SS |
1060 | { |
1061 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1062 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1063 | /* Number of args for this frame, or -1 if unknown. */ |
1064 | int numargs; | |
1065 | ||
1066 | if (arg_list == 0) | |
1067 | printf_filtered (" Arglist at unknown address.\n"); | |
1068 | else | |
1069 | { | |
1070 | printf_filtered (" Arglist at "); | |
ed49a04f | 1071 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1072 | printf_filtered (","); |
1073 | ||
7500260a | 1074 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1075 | { |
1076 | numargs = -1; | |
1077 | puts_filtered (" args: "); | |
1078 | } | |
c906108c | 1079 | else |
983a287a | 1080 | { |
7500260a | 1081 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1082 | gdb_assert (numargs >= 0); |
1083 | if (numargs == 0) | |
1084 | puts_filtered (" no args."); | |
1085 | else if (numargs == 1) | |
1086 | puts_filtered (" 1 arg: "); | |
1087 | else | |
1088 | printf_filtered (" %d args: ", numargs); | |
1089 | } | |
c906108c SS |
1090 | print_frame_args (func, fi, numargs, gdb_stdout); |
1091 | puts_filtered ("\n"); | |
1092 | } | |
1093 | } | |
1094 | { | |
1095 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1096 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1097 | |
1098 | if (arg_list == 0) | |
1099 | printf_filtered (" Locals at unknown address,"); | |
1100 | else | |
1101 | { | |
1102 | printf_filtered (" Locals at "); | |
ed49a04f | 1103 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1104 | printf_filtered (","); |
1105 | } | |
1106 | } | |
1107 | ||
4f460812 AC |
1108 | /* Print as much information as possible on the location of all the |
1109 | registers. */ | |
1110 | { | |
1111 | enum lval_type lval; | |
1112 | int optimized; | |
1113 | CORE_ADDR addr; | |
1114 | int realnum; | |
1115 | int count; | |
1116 | int i; | |
1117 | int need_nl = 1; | |
1118 | ||
1119 | /* The sp is special; what's displayed isn't the save address, but | |
1120 | the value of the previous frame's sp. This is a legacy thing, | |
1121 | at one stage the frame cached the previous frame's SP instead | |
1122 | of its address, hence it was easiest to just display the cached | |
1123 | value. */ | |
7500260a | 1124 | if (gdbarch_sp_regnum (gdbarch) >= 0) |
4f460812 AC |
1125 | { |
1126 | /* Find out the location of the saved stack pointer with out | |
1127 | actually evaluating it. */ | |
7500260a | 1128 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1129 | &optimized, &lval, &addr, |
4f460812 AC |
1130 | &realnum, NULL); |
1131 | if (!optimized && lval == not_lval) | |
c906108c | 1132 | { |
10c42a71 | 1133 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 | 1134 | CORE_ADDR sp; |
7500260a | 1135 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1136 | &optimized, &lval, &addr, |
4f460812 | 1137 | &realnum, value); |
af1342ab AC |
1138 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1139 | stack pointer was packed as an unsigned integer. That | |
1140 | may or may not be valid. */ | |
3e8c568d | 1141 | sp = extract_unsigned_integer (value, |
7500260a UW |
1142 | register_size (gdbarch, |
1143 | gdbarch_sp_regnum (gdbarch))); | |
4f460812 | 1144 | printf_filtered (" Previous frame's sp is "); |
ed49a04f | 1145 | fputs_filtered (paddress (sp), gdb_stdout); |
4f460812 AC |
1146 | printf_filtered ("\n"); |
1147 | need_nl = 0; | |
c906108c | 1148 | } |
4f460812 AC |
1149 | else if (!optimized && lval == lval_memory) |
1150 | { | |
1151 | printf_filtered (" Previous frame's sp at "); | |
ed49a04f | 1152 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1153 | printf_filtered ("\n"); |
1154 | need_nl = 0; | |
1155 | } | |
1156 | else if (!optimized && lval == lval_register) | |
1157 | { | |
1158 | printf_filtered (" Previous frame's sp in %s\n", | |
7500260a | 1159 | gdbarch_register_name (gdbarch, realnum)); |
4f460812 AC |
1160 | need_nl = 0; |
1161 | } | |
1162 | /* else keep quiet. */ | |
1163 | } | |
1164 | ||
1165 | count = 0; | |
7500260a UW |
1166 | numregs = gdbarch_num_regs (gdbarch) |
1167 | + gdbarch_num_pseudo_regs (gdbarch); | |
4f460812 | 1168 | for (i = 0; i < numregs; i++) |
7500260a UW |
1169 | if (i != gdbarch_sp_regnum (gdbarch) |
1170 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) | |
4f460812 AC |
1171 | { |
1172 | /* Find out the location of the saved register without | |
1173 | fetching the corresponding value. */ | |
1174 | frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum, | |
1175 | NULL); | |
1176 | /* For moment, only display registers that were saved on the | |
1177 | stack. */ | |
1178 | if (!optimized && lval == lval_memory) | |
1179 | { | |
1180 | if (count == 0) | |
1181 | puts_filtered (" Saved registers:\n "); | |
1182 | else | |
1183 | puts_filtered (","); | |
1184 | wrap_here (" "); | |
c9f4d572 | 1185 | printf_filtered (" %s at ", |
7500260a | 1186 | gdbarch_register_name (gdbarch, i)); |
ed49a04f | 1187 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1188 | count++; |
1189 | } | |
1190 | } | |
1191 | if (count || need_nl) | |
c906108c | 1192 | puts_filtered ("\n"); |
4f460812 | 1193 | } |
3567439c DJ |
1194 | |
1195 | do_cleanups (back_to); | |
c906108c SS |
1196 | } |
1197 | ||
033a42c2 MK |
1198 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1199 | frames. */ | |
c906108c SS |
1200 | |
1201 | static void | |
fba45db2 | 1202 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1203 | { |
1204 | struct frame_info *fi; | |
52f0bd74 AC |
1205 | int count; |
1206 | int i; | |
1207 | struct frame_info *trailing; | |
1208 | int trailing_level; | |
c906108c SS |
1209 | |
1210 | if (!target_has_stack) | |
8a3fe4f8 | 1211 | error (_("No stack.")); |
c906108c | 1212 | |
033a42c2 MK |
1213 | /* The following code must do two things. First, it must set the |
1214 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1215 | printing. Second, it must set the variable count to the number |
1216 | of frames which we should print, or -1 if all of them. */ | |
1217 | trailing = get_current_frame (); | |
d082b2bb AC |
1218 | |
1219 | /* The target can be in a state where there is no valid frames | |
1220 | (e.g., just connected). */ | |
1221 | if (trailing == NULL) | |
8a3fe4f8 | 1222 | error (_("No stack.")); |
d082b2bb | 1223 | |
c906108c SS |
1224 | trailing_level = 0; |
1225 | if (count_exp) | |
1226 | { | |
bb518678 | 1227 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1228 | if (count < 0) |
1229 | { | |
1230 | struct frame_info *current; | |
1231 | ||
1232 | count = -count; | |
1233 | ||
1234 | current = trailing; | |
1235 | while (current && count--) | |
1236 | { | |
1237 | QUIT; | |
1238 | current = get_prev_frame (current); | |
1239 | } | |
c5aa993b | 1240 | |
033a42c2 MK |
1241 | /* Will stop when CURRENT reaches the top of the stack. |
1242 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1243 | while (current) |
1244 | { | |
1245 | QUIT; | |
1246 | trailing = get_prev_frame (trailing); | |
1247 | current = get_prev_frame (current); | |
1248 | trailing_level++; | |
1249 | } | |
c5aa993b | 1250 | |
c906108c SS |
1251 | count = -1; |
1252 | } | |
1253 | } | |
1254 | else | |
1255 | count = -1; | |
1256 | ||
1257 | if (info_verbose) | |
1258 | { | |
1259 | struct partial_symtab *ps; | |
c5aa993b | 1260 | |
033a42c2 MK |
1261 | /* Read in symbols for all of the frames. Need to do this in a |
1262 | separate pass so that "Reading in symbols for xxx" messages | |
1263 | don't screw up the appearance of the backtrace. Also if | |
1264 | people have strong opinions against reading symbols for | |
c5aa993b | 1265 | backtrace this may have to be an option. */ |
c906108c | 1266 | i = count; |
033a42c2 | 1267 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c SS |
1268 | { |
1269 | QUIT; | |
c4a09524 | 1270 | ps = find_pc_psymtab (get_frame_address_in_block (fi)); |
c906108c | 1271 | if (ps) |
033a42c2 | 1272 | PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */ |
c906108c SS |
1273 | } |
1274 | } | |
1275 | ||
033a42c2 | 1276 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1277 | { |
1278 | QUIT; | |
1279 | ||
1280 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1281 | means further attempts to backtrace would fail (on the other |
1282 | hand, perhaps the code does or could be fixed to make sure | |
1283 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1284 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1285 | if (show_locals) |
c5aa993b | 1286 | print_frame_local_vars (fi, 1, gdb_stdout); |
55feb689 DJ |
1287 | |
1288 | /* Save the last frame to check for error conditions. */ | |
1289 | trailing = fi; | |
c906108c SS |
1290 | } |
1291 | ||
1292 | /* If we've stopped before the end, mention that. */ | |
1293 | if (fi && from_tty) | |
a3f17187 | 1294 | printf_filtered (_("(More stack frames follow...)\n")); |
55feb689 DJ |
1295 | |
1296 | /* If we've run out of frames, and the reason appears to be an error | |
1297 | condition, print it. */ | |
1298 | if (fi == NULL && trailing != NULL) | |
1299 | { | |
1300 | enum unwind_stop_reason reason; | |
1301 | ||
1302 | reason = get_frame_unwind_stop_reason (trailing); | |
1303 | if (reason > UNWIND_FIRST_ERROR) | |
1304 | printf_filtered (_("Backtrace stopped: %s\n"), | |
1305 | frame_stop_reason_string (reason)); | |
1306 | } | |
c906108c SS |
1307 | } |
1308 | ||
d75e3c94 | 1309 | struct backtrace_command_args |
033a42c2 MK |
1310 | { |
1311 | char *count_exp; | |
1312 | int show_locals; | |
1313 | int from_tty; | |
1314 | }; | |
1315 | ||
1316 | /* Stub for catch_errors. */ | |
d75e3c94 | 1317 | |
d75e3c94 JJ |
1318 | static int |
1319 | backtrace_command_stub (void *data) | |
1320 | { | |
033a42c2 | 1321 | struct backtrace_command_args *args = data; |
d75e3c94 JJ |
1322 | backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty); |
1323 | return 0; | |
1324 | } | |
1325 | ||
c906108c | 1326 | static void |
fba45db2 | 1327 | backtrace_command (char *arg, int from_tty) |
c906108c | 1328 | { |
033a42c2 MK |
1329 | struct cleanup *old_chain = NULL; |
1330 | int fulltrace_arg = -1, arglen = 0, argc = 0; | |
d75e3c94 | 1331 | struct backtrace_command_args btargs; |
c906108c | 1332 | |
033a42c2 | 1333 | if (arg) |
c906108c | 1334 | { |
033a42c2 | 1335 | char **argv; |
c906108c SS |
1336 | int i; |
1337 | ||
d1a41061 | 1338 | argv = gdb_buildargv (arg); |
7a292a7a | 1339 | old_chain = make_cleanup_freeargv (argv); |
c906108c | 1340 | argc = 0; |
033a42c2 | 1341 | for (i = 0; argv[i]; i++) |
c5aa993b | 1342 | { |
745b8ca0 | 1343 | unsigned int j; |
c5aa993b | 1344 | |
033a42c2 | 1345 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1346 | argv[i][j] = tolower (argv[i][j]); |
1347 | ||
033a42c2 MK |
1348 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1349 | fulltrace_arg = argc; | |
c5aa993b JM |
1350 | else |
1351 | { | |
033a42c2 | 1352 | arglen += strlen (argv[i]); |
c5aa993b | 1353 | argc++; |
c5aa993b JM |
1354 | } |
1355 | } | |
033a42c2 MK |
1356 | arglen += argc; |
1357 | if (fulltrace_arg >= 0) | |
c5aa993b | 1358 | { |
033a42c2 | 1359 | if (arglen > 0) |
c5aa993b | 1360 | { |
033a42c2 MK |
1361 | arg = xmalloc (arglen + 1); |
1362 | memset (arg, 0, arglen + 1); | |
1363 | for (i = 0; i < (argc + 1); i++) | |
c5aa993b | 1364 | { |
033a42c2 | 1365 | if (i != fulltrace_arg) |
c5aa993b | 1366 | { |
033a42c2 MK |
1367 | strcat (arg, argv[i]); |
1368 | strcat (arg, " "); | |
c5aa993b JM |
1369 | } |
1370 | } | |
1371 | } | |
1372 | else | |
033a42c2 | 1373 | arg = NULL; |
c5aa993b | 1374 | } |
c906108c SS |
1375 | } |
1376 | ||
033a42c2 MK |
1377 | btargs.count_exp = arg; |
1378 | btargs.show_locals = (fulltrace_arg >= 0); | |
d75e3c94 | 1379 | btargs.from_tty = from_tty; |
033a42c2 | 1380 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1381 | |
033a42c2 MK |
1382 | if (fulltrace_arg >= 0 && arglen > 0) |
1383 | xfree (arg); | |
c906108c SS |
1384 | |
1385 | if (old_chain) | |
c5aa993b | 1386 | do_cleanups (old_chain); |
c906108c SS |
1387 | } |
1388 | ||
1389 | static void | |
fba45db2 | 1390 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1391 | { |
d75e3c94 JJ |
1392 | struct backtrace_command_args btargs; |
1393 | btargs.count_exp = arg; | |
1394 | btargs.show_locals = 1; | |
1395 | btargs.from_tty = from_tty; | |
033a42c2 | 1396 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1397 | } |
c906108c | 1398 | \f |
c5aa993b | 1399 | |
033a42c2 | 1400 | /* Print the local variables of a block B active in FRAME on STREAM. |
c906108c SS |
1401 | Return 1 if any variables were printed; 0 otherwise. */ |
1402 | ||
1403 | static int | |
033a42c2 | 1404 | print_block_frame_locals (struct block *b, struct frame_info *frame, |
de4f826b | 1405 | int num_tabs, struct ui_file *stream) |
c906108c | 1406 | { |
de4f826b | 1407 | struct dict_iterator iter; |
de4f826b DC |
1408 | struct symbol *sym; |
1409 | int values_printed = 0; | |
033a42c2 | 1410 | int j; |
c906108c | 1411 | |
de4f826b | 1412 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1413 | { |
c906108c SS |
1414 | switch (SYMBOL_CLASS (sym)) |
1415 | { | |
1416 | case LOC_LOCAL: | |
1417 | case LOC_REGISTER: | |
1418 | case LOC_STATIC: | |
4c2df51b | 1419 | case LOC_COMPUTED: |
2a2d4dc3 AS |
1420 | if (SYMBOL_IS_ARGUMENT (sym)) |
1421 | break; | |
c906108c | 1422 | values_printed = 1; |
aad95b57 | 1423 | print_variable_and_value (NULL, sym, frame, stream, 4 * num_tabs); |
c906108c SS |
1424 | break; |
1425 | ||
1426 | default: | |
1427 | /* Ignore symbols which are not locals. */ | |
1428 | break; | |
1429 | } | |
1430 | } | |
033a42c2 | 1431 | |
c906108c SS |
1432 | return values_printed; |
1433 | } | |
1434 | ||
1435 | /* Same, but print labels. */ | |
1436 | ||
1437 | static int | |
fba45db2 | 1438 | print_block_frame_labels (struct block *b, int *have_default, |
aa1ee363 | 1439 | struct ui_file *stream) |
c906108c | 1440 | { |
de4f826b | 1441 | struct dict_iterator iter; |
52f0bd74 AC |
1442 | struct symbol *sym; |
1443 | int values_printed = 0; | |
c906108c | 1444 | |
de4f826b | 1445 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1446 | { |
3567439c | 1447 | if (strcmp (SYMBOL_LINKAGE_NAME (sym), "default") == 0) |
c906108c SS |
1448 | { |
1449 | if (*have_default) | |
1450 | continue; | |
1451 | *have_default = 1; | |
1452 | } | |
1453 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1454 | { | |
1455 | struct symtab_and_line sal; | |
79a45b7d | 1456 | struct value_print_options opts; |
c906108c SS |
1457 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); |
1458 | values_printed = 1; | |
de5ad195 | 1459 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
79a45b7d TT |
1460 | get_user_print_options (&opts); |
1461 | if (opts.addressprint) | |
c906108c SS |
1462 | { |
1463 | fprintf_filtered (stream, " "); | |
ed49a04f | 1464 | fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (sym)), stream); |
c906108c SS |
1465 | } |
1466 | fprintf_filtered (stream, " in file %s, line %d\n", | |
1467 | sal.symtab->filename, sal.line); | |
1468 | } | |
1469 | } | |
033a42c2 | 1470 | |
c906108c SS |
1471 | return values_printed; |
1472 | } | |
1473 | ||
033a42c2 MK |
1474 | /* Print on STREAM all the local variables in frame FRAME, including |
1475 | all the blocks active in that frame at its current PC. | |
c906108c | 1476 | |
033a42c2 MK |
1477 | Returns 1 if the job was done, or 0 if nothing was printed because |
1478 | we have no info on the function running in FRAME. */ | |
c906108c SS |
1479 | |
1480 | static void | |
033a42c2 | 1481 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 1482 | struct ui_file *stream) |
c906108c | 1483 | { |
033a42c2 | 1484 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1485 | int values_printed = 0; |
c906108c SS |
1486 | |
1487 | if (block == 0) | |
1488 | { | |
1489 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1490 | return; | |
1491 | } | |
c5aa993b | 1492 | |
033a42c2 | 1493 | while (block) |
c906108c | 1494 | { |
033a42c2 | 1495 | if (print_block_frame_locals (block, frame, num_tabs, stream)) |
c906108c | 1496 | values_printed = 1; |
033a42c2 MK |
1497 | /* After handling the function's top-level block, stop. Don't |
1498 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1499 | if (BLOCK_FUNCTION (block)) |
1500 | break; | |
1501 | block = BLOCK_SUPERBLOCK (block); | |
1502 | } | |
1503 | ||
1504 | if (!values_printed) | |
033a42c2 | 1505 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
1506 | } |
1507 | ||
1508 | /* Same, but print labels. */ | |
1509 | ||
1510 | static void | |
033a42c2 | 1511 | print_frame_label_vars (struct frame_info *frame, int this_level_only, |
aa1ee363 | 1512 | struct ui_file *stream) |
c906108c | 1513 | { |
801e3a5b JB |
1514 | #if 1 |
1515 | fprintf_filtered (stream, "print_frame_label_vars disabled.\n"); | |
1516 | #else | |
52f0bd74 | 1517 | struct blockvector *bl; |
033a42c2 | 1518 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1519 | int values_printed = 0; |
c906108c SS |
1520 | int index, have_default = 0; |
1521 | char *blocks_printed; | |
033a42c2 | 1522 | CORE_ADDR pc = get_frame_pc (frame); |
c906108c SS |
1523 | |
1524 | if (block == 0) | |
1525 | { | |
1526 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1527 | return; | |
1528 | } | |
1529 | ||
1530 | bl = blockvector_for_pc (BLOCK_END (block) - 4, &index); | |
033a42c2 | 1531 | blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
c906108c SS |
1532 | memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
1533 | ||
1534 | while (block != 0) | |
1535 | { | |
1536 | CORE_ADDR end = BLOCK_END (block) - 4; | |
1537 | int last_index; | |
1538 | ||
1539 | if (bl != blockvector_for_pc (end, &index)) | |
8a3fe4f8 | 1540 | error (_("blockvector blotch")); |
c906108c | 1541 | if (BLOCKVECTOR_BLOCK (bl, index) != block) |
8a3fe4f8 | 1542 | error (_("blockvector botch")); |
c906108c SS |
1543 | last_index = BLOCKVECTOR_NBLOCKS (bl); |
1544 | index += 1; | |
1545 | ||
1546 | /* Don't print out blocks that have gone by. */ | |
1547 | while (index < last_index | |
1548 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc) | |
1549 | index++; | |
1550 | ||
1551 | while (index < last_index | |
1552 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end) | |
1553 | { | |
1554 | if (blocks_printed[index] == 0) | |
1555 | { | |
033a42c2 MK |
1556 | if (print_block_frame_labels (BLOCKVECTOR_BLOCK (bl, index), |
1557 | &have_default, stream)) | |
c906108c SS |
1558 | values_printed = 1; |
1559 | blocks_printed[index] = 1; | |
1560 | } | |
1561 | index++; | |
1562 | } | |
1563 | if (have_default) | |
1564 | return; | |
1565 | if (values_printed && this_level_only) | |
1566 | return; | |
1567 | ||
033a42c2 MK |
1568 | /* After handling the function's top-level block, stop. Don't |
1569 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1570 | if (BLOCK_FUNCTION (block)) |
1571 | break; | |
1572 | block = BLOCK_SUPERBLOCK (block); | |
1573 | } | |
1574 | ||
1575 | if (!values_printed && !this_level_only) | |
033a42c2 | 1576 | fprintf_filtered (stream, _("No catches.\n")); |
801e3a5b | 1577 | #endif |
c906108c SS |
1578 | } |
1579 | ||
c906108c | 1580 | void |
fba45db2 | 1581 | locals_info (char *args, int from_tty) |
c906108c | 1582 | { |
033a42c2 | 1583 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1584 | 0, gdb_stdout); |
c906108c SS |
1585 | } |
1586 | ||
1587 | static void | |
fba45db2 | 1588 | catch_info (char *ignore, int from_tty) |
c906108c | 1589 | { |
c5aa993b | 1590 | struct symtab_and_line *sal; |
c906108c | 1591 | |
dfdfb3ca JB |
1592 | /* Assume g++ compiled code; old GDB 4.16 behaviour. */ |
1593 | print_frame_label_vars (get_selected_frame (_("No frame selected.")), | |
1594 | 0, gdb_stdout); | |
c906108c SS |
1595 | } |
1596 | ||
1597 | static void | |
033a42c2 | 1598 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) |
c906108c | 1599 | { |
033a42c2 | 1600 | struct symbol *func = get_frame_function (frame); |
52f0bd74 | 1601 | struct block *b; |
de4f826b | 1602 | struct dict_iterator iter; |
52f0bd74 AC |
1603 | struct symbol *sym, *sym2; |
1604 | int values_printed = 0; | |
c906108c SS |
1605 | |
1606 | if (func == 0) | |
1607 | { | |
033a42c2 | 1608 | fprintf_filtered (stream, _("No symbol table info available.\n")); |
c906108c SS |
1609 | return; |
1610 | } | |
1611 | ||
1612 | b = SYMBOL_BLOCK_VALUE (func); | |
de4f826b | 1613 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1614 | { |
2a2d4dc3 AS |
1615 | /* Don't worry about things which aren't arguments. */ |
1616 | if (SYMBOL_IS_ARGUMENT (sym)) | |
c906108c | 1617 | { |
c906108c | 1618 | values_printed = 1; |
c906108c SS |
1619 | |
1620 | /* We have to look up the symbol because arguments can have | |
1621 | two entries (one a parameter, one a local) and the one we | |
1622 | want is the local, which lookup_symbol will find for us. | |
1623 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1624 | small structure and gcc2 when the argument type is float | |
1625 | and it is passed as a double and converted to float by | |
1626 | the prologue (in the latter case the type of the LOC_ARG | |
1627 | symbol is double and the type of the LOC_LOCAL symbol is | |
1628 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
1629 | are not combined in symbol-reading. */ | |
1630 | ||
3567439c | 1631 | sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), |
2570f2b7 | 1632 | b, VAR_DOMAIN, NULL); |
aad95b57 TT |
1633 | print_variable_and_value (SYMBOL_PRINT_NAME (sym), sym2, |
1634 | frame, stream, 0); | |
c906108c SS |
1635 | } |
1636 | } | |
033a42c2 | 1637 | |
c906108c | 1638 | if (!values_printed) |
033a42c2 | 1639 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
1640 | } |
1641 | ||
1642 | void | |
fba45db2 | 1643 | args_info (char *ignore, int from_tty) |
c906108c | 1644 | { |
033a42c2 | 1645 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1646 | gdb_stdout); |
c906108c SS |
1647 | } |
1648 | ||
1649 | ||
1650 | static void | |
fba45db2 | 1651 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 1652 | { |
c5aa993b JM |
1653 | args_info (ignore, from_tty); |
1654 | locals_info (ignore, from_tty); | |
c906108c | 1655 | } |
c906108c | 1656 | \f |
c5aa993b | 1657 | |
033a42c2 MK |
1658 | /* Select frame FRAME. Also print the stack frame and show the source |
1659 | if this is the tui version. */ | |
bedfa57b | 1660 | static void |
033a42c2 | 1661 | select_and_print_frame (struct frame_info *frame) |
c906108c | 1662 | { |
033a42c2 MK |
1663 | select_frame (frame); |
1664 | if (frame) | |
1665 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 1666 | } |
c906108c | 1667 | \f |
c906108c | 1668 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
1669 | Can return zero under various legitimate circumstances. |
1670 | ||
1671 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
1672 | code address within the block returned. We use this to decide | |
1673 | which macros are in scope. */ | |
c906108c SS |
1674 | |
1675 | struct block * | |
ae767bfb | 1676 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c | 1677 | { |
d729566a | 1678 | if (!has_stack_frames ()) |
8ea051c5 PA |
1679 | return 0; |
1680 | ||
206415a3 | 1681 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
1682 | } |
1683 | ||
1684 | /* Find a frame a certain number of levels away from FRAME. | |
1685 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
1686 | Positive means go to earlier frames (up); negative, the reverse. | |
1687 | The int that contains the number of levels is counted toward | |
1688 | zero as the frames for those levels are found. | |
1689 | If the top or bottom frame is reached, that frame is returned, | |
1690 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
1691 | how much farther the original request asked to go. */ | |
1692 | ||
1693 | struct frame_info * | |
033a42c2 | 1694 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 1695 | { |
033a42c2 MK |
1696 | /* Going up is simple: just call get_prev_frame enough times or |
1697 | until the initial frame is reached. */ | |
c906108c SS |
1698 | while (*level_offset_ptr > 0) |
1699 | { | |
033a42c2 MK |
1700 | struct frame_info *prev = get_prev_frame (frame); |
1701 | if (!prev) | |
c906108c SS |
1702 | break; |
1703 | (*level_offset_ptr)--; | |
1704 | frame = prev; | |
1705 | } | |
033a42c2 | 1706 | |
c906108c | 1707 | /* Going down is just as simple. */ |
033a42c2 | 1708 | while (*level_offset_ptr < 0) |
c906108c | 1709 | { |
033a42c2 MK |
1710 | struct frame_info *next = get_next_frame (frame); |
1711 | if (!next) | |
1712 | break; | |
1713 | (*level_offset_ptr)++; | |
1714 | frame = next; | |
c906108c | 1715 | } |
033a42c2 | 1716 | |
c906108c SS |
1717 | return frame; |
1718 | } | |
1719 | ||
033a42c2 MK |
1720 | /* The "select_frame" command. With no argument this is a NOP. |
1721 | Select the frame at level LEVEL_EXP if it is a valid level. | |
1722 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
1723 | ||
1724 | See parse_frame_specification for more info on proper frame | |
1725 | expressions. */ | |
c906108c | 1726 | |
8b93c638 | 1727 | void |
fba45db2 | 1728 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 1729 | { |
1c8831c5 | 1730 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
1731 | } |
1732 | ||
033a42c2 MK |
1733 | /* The "frame" command. With no argument, print the selected frame |
1734 | briefly. With an argument, behave like select_frame and then print | |
1735 | the selected frame. */ | |
c906108c | 1736 | |
033a42c2 | 1737 | static void |
fba45db2 | 1738 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
1739 | { |
1740 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 1741 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1742 | } |
1743 | ||
033a42c2 | 1744 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 1745 | |
7a292a7a | 1746 | static void |
fba45db2 | 1747 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 1748 | { |
033a42c2 | 1749 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 1750 | } |
c906108c | 1751 | |
033a42c2 MK |
1752 | /* Select the frame up one or COUNT_EXP stack levels from the |
1753 | previously selected frame, and print it briefly. */ | |
c906108c | 1754 | |
c906108c | 1755 | static void |
fba45db2 | 1756 | up_silently_base (char *count_exp) |
c906108c | 1757 | { |
033a42c2 MK |
1758 | struct frame_info *frame; |
1759 | int count = 1; | |
1760 | ||
c906108c | 1761 | if (count_exp) |
bb518678 | 1762 | count = parse_and_eval_long (count_exp); |
c5aa993b | 1763 | |
033a42c2 MK |
1764 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1765 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 1766 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 1767 | select_frame (frame); |
c906108c SS |
1768 | } |
1769 | ||
1770 | static void | |
fba45db2 | 1771 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 1772 | { |
c5aa993b | 1773 | up_silently_base (count_exp); |
c906108c SS |
1774 | } |
1775 | ||
1776 | static void | |
fba45db2 | 1777 | up_command (char *count_exp, int from_tty) |
c906108c SS |
1778 | { |
1779 | up_silently_base (count_exp); | |
b04f3ab4 | 1780 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1781 | } |
1782 | ||
033a42c2 MK |
1783 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
1784 | selected frame, and print it briefly. */ | |
c906108c | 1785 | |
c906108c | 1786 | static void |
fba45db2 | 1787 | down_silently_base (char *count_exp) |
c906108c | 1788 | { |
52f0bd74 | 1789 | struct frame_info *frame; |
033a42c2 | 1790 | int count = -1; |
c906108c | 1791 | if (count_exp) |
bb518678 | 1792 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 1793 | |
033a42c2 MK |
1794 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1795 | if (count != 0 && count_exp == NULL) | |
c906108c | 1796 | { |
033a42c2 MK |
1797 | /* We only do this if COUNT_EXP is not specified. That way |
1798 | "down" means to really go down (and let me know if that is | |
1799 | impossible), but "down 9999" can be used to mean go all the | |
1800 | way down without getting an error. */ | |
c906108c | 1801 | |
033a42c2 | 1802 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
1803 | } |
1804 | ||
0f7d239c | 1805 | select_frame (frame); |
c906108c SS |
1806 | } |
1807 | ||
c906108c | 1808 | static void |
fba45db2 | 1809 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
1810 | { |
1811 | down_silently_base (count_exp); | |
c906108c SS |
1812 | } |
1813 | ||
1814 | static void | |
fba45db2 | 1815 | down_command (char *count_exp, int from_tty) |
c906108c SS |
1816 | { |
1817 | down_silently_base (count_exp); | |
b04f3ab4 | 1818 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1819 | } |
1820 | \f | |
033a42c2 | 1821 | |
8b93c638 | 1822 | void |
fba45db2 | 1823 | return_command (char *retval_exp, int from_tty) |
c906108c | 1824 | { |
5ed92fa8 | 1825 | struct frame_info *thisframe; |
d80b854b | 1826 | struct gdbarch *gdbarch; |
c906108c | 1827 | struct symbol *thisfun; |
3d6d86c6 | 1828 | struct value *return_value = NULL; |
fc70c2a0 | 1829 | const char *query_prefix = ""; |
c906108c | 1830 | |
5ed92fa8 UW |
1831 | thisframe = get_selected_frame ("No selected frame."); |
1832 | thisfun = get_frame_function (thisframe); | |
d80b854b | 1833 | gdbarch = get_frame_arch (thisframe); |
c906108c | 1834 | |
fc70c2a0 AC |
1835 | /* Compute the return value. If the computation triggers an error, |
1836 | let it bail. If the return type can't be handled, set | |
1837 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
1838 | message. */ | |
c906108c SS |
1839 | if (retval_exp) |
1840 | { | |
61ff14c6 JK |
1841 | struct expression *retval_expr = parse_expression (retval_exp); |
1842 | struct cleanup *old_chain = make_cleanup (xfree, retval_expr); | |
c906108c SS |
1843 | struct type *return_type = NULL; |
1844 | ||
fc70c2a0 AC |
1845 | /* Compute the return value. Should the computation fail, this |
1846 | call throws an error. */ | |
61ff14c6 | 1847 | return_value = evaluate_expression (retval_expr); |
c906108c | 1848 | |
fc70c2a0 AC |
1849 | /* Cast return value to the return type of the function. Should |
1850 | the cast fail, this call throws an error. */ | |
c906108c SS |
1851 | if (thisfun != NULL) |
1852 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
1853 | if (return_type == NULL) | |
61ff14c6 JK |
1854 | { |
1855 | if (retval_expr->elts[0].opcode != UNOP_CAST) | |
1856 | error (_("Return value type not available for selected " | |
1857 | "stack frame.\n" | |
1858 | "Please use an explicit cast of the value to return.")); | |
1859 | return_type = value_type (return_value); | |
1860 | } | |
1861 | do_cleanups (old_chain); | |
3e9a183c | 1862 | CHECK_TYPEDEF (return_type); |
c906108c SS |
1863 | return_value = value_cast (return_type, return_value); |
1864 | ||
fc70c2a0 AC |
1865 | /* Make sure the value is fully evaluated. It may live in the |
1866 | stack frame we're about to pop. */ | |
d69fe07e | 1867 | if (value_lazy (return_value)) |
c906108c | 1868 | value_fetch_lazy (return_value); |
c906108c | 1869 | |
667e784f AC |
1870 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
1871 | /* If the return-type is "void", don't try to find the | |
1872 | return-value's location. However, do still evaluate the | |
1873 | return expression so that, even when the expression result | |
1874 | is discarded, side effects such as "return i++" still | |
033a42c2 | 1875 | occur. */ |
667e784f | 1876 | return_value = NULL; |
42e2132c | 1877 | else if (thisfun != NULL |
d80b854b UW |
1878 | && using_struct_return (gdbarch, |
1879 | SYMBOL_TYPE (thisfun), return_type)) | |
fc70c2a0 | 1880 | { |
667e784f AC |
1881 | query_prefix = "\ |
1882 | The location at which to store the function's return value is unknown.\n\ | |
1883 | If you continue, the return value that you specified will be ignored.\n"; | |
1884 | return_value = NULL; | |
fc70c2a0 | 1885 | } |
c906108c SS |
1886 | } |
1887 | ||
fc70c2a0 AC |
1888 | /* Does an interactive user really want to do this? Include |
1889 | information, such as how well GDB can handle the return value, in | |
1890 | the query message. */ | |
1891 | if (from_tty) | |
1892 | { | |
1893 | int confirmed; | |
1894 | if (thisfun == NULL) | |
e2e0b3e5 | 1895 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
1896 | query_prefix); |
1897 | else | |
e2e0b3e5 | 1898 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
1899 | SYMBOL_PRINT_NAME (thisfun)); |
1900 | if (!confirmed) | |
8a3fe4f8 | 1901 | error (_("Not confirmed")); |
fc70c2a0 | 1902 | } |
c906108c | 1903 | |
a45ae3ed UW |
1904 | /* Discard the selected frame and all frames inner-to it. */ |
1905 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 1906 | |
a1f5b845 | 1907 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
1908 | if (return_value != NULL) |
1909 | { | |
df407dfe | 1910 | struct type *return_type = value_type (return_value); |
7500260a | 1911 | struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ()); |
42e2132c JK |
1912 | struct type *func_type = thisfun == NULL ? NULL : SYMBOL_TYPE (thisfun); |
1913 | ||
1914 | gdb_assert (gdbarch_return_value (gdbarch, func_type, return_type, NULL, | |
1915 | NULL, NULL) | |
750eb019 | 1916 | == RETURN_VALUE_REGISTER_CONVENTION); |
42e2132c | 1917 | gdbarch_return_value (gdbarch, func_type, return_type, |
594f7785 | 1918 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 1919 | value_contents (return_value) /*write*/); |
fc70c2a0 | 1920 | } |
1a2aab69 | 1921 | |
fc70c2a0 AC |
1922 | /* If we are at the end of a call dummy now, pop the dummy frame |
1923 | too. */ | |
e8bcf01f AC |
1924 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
1925 | frame_pop (get_current_frame ()); | |
1a2aab69 | 1926 | |
c906108c | 1927 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
1928 | if (from_tty) |
1929 | frame_command ("0", 1); | |
1930 | else | |
1931 | select_frame_command ("0", 0); | |
1932 | } | |
1933 | ||
033a42c2 MK |
1934 | /* Sets the scope to input function name, provided that the function |
1935 | is within the current stack frame */ | |
c906108c SS |
1936 | |
1937 | struct function_bounds | |
1938 | { | |
1939 | CORE_ADDR low, high; | |
1940 | }; | |
1941 | ||
1942 | static void | |
fba45db2 | 1943 | func_command (char *arg, int from_tty) |
c906108c | 1944 | { |
033a42c2 | 1945 | struct frame_info *frame; |
c906108c SS |
1946 | int found = 0; |
1947 | struct symtabs_and_lines sals; | |
1948 | int i; | |
1949 | int level = 1; | |
033a42c2 | 1950 | struct function_bounds *func_bounds = NULL; |
c906108c | 1951 | |
033a42c2 | 1952 | if (arg != NULL) |
c906108c SS |
1953 | return; |
1954 | ||
033a42c2 | 1955 | frame = parse_frame_specification ("0"); |
c906108c SS |
1956 | sals = decode_line_spec (arg, 1); |
1957 | func_bounds = (struct function_bounds *) xmalloc ( | |
1958 | sizeof (struct function_bounds) * sals.nelts); | |
1959 | for (i = 0; (i < sals.nelts && !found); i++) | |
1960 | { | |
033a42c2 MK |
1961 | if (sals.sals[i].pc == 0 |
1962 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
1963 | &func_bounds[i].low, | |
1964 | &func_bounds[i].high) == 0) | |
c906108c | 1965 | { |
033a42c2 | 1966 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
1967 | } |
1968 | } | |
1969 | ||
1970 | do | |
1971 | { | |
1972 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
1973 | found = (get_frame_pc (frame) >= func_bounds[i].low |
1974 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
1975 | if (!found) |
1976 | { | |
1977 | level = 1; | |
033a42c2 | 1978 | frame = find_relative_frame (frame, &level); |
c906108c SS |
1979 | } |
1980 | } | |
1981 | while (!found && level == 0); | |
1982 | ||
1983 | if (func_bounds) | |
b8c9b27d | 1984 | xfree (func_bounds); |
c906108c SS |
1985 | |
1986 | if (!found) | |
a3f17187 | 1987 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
206415a3 | 1988 | else if (frame != get_selected_frame (NULL)) |
033a42c2 | 1989 | select_and_print_frame (frame); |
c906108c SS |
1990 | } |
1991 | ||
1992 | /* Gets the language of the current frame. */ | |
1993 | ||
1994 | enum language | |
fba45db2 | 1995 | get_frame_language (void) |
c906108c | 1996 | { |
206415a3 | 1997 | struct frame_info *frame = deprecated_safe_get_selected_frame (); |
c5aa993b | 1998 | |
033a42c2 | 1999 | if (frame) |
c906108c | 2000 | { |
7ae4c3a5 | 2001 | /* We determine the current frame language by looking up its |
033a42c2 MK |
2002 | associated symtab. To retrieve this symtab, we use the frame |
2003 | PC. However we cannot use the frame PC as is, because it | |
2004 | usually points to the instruction following the "call", which | |
2005 | is sometimes the first instruction of another function. So | |
2006 | we rely on get_frame_address_in_block(), it provides us with | |
2007 | a PC that is guaranteed to be inside the frame's code | |
2008 | block. */ | |
2009 | CORE_ADDR pc = get_frame_address_in_block (frame); | |
2010 | struct symtab *s = find_pc_symtab (pc); | |
2011 | ||
c906108c | 2012 | if (s) |
033a42c2 | 2013 | return s->language; |
c906108c | 2014 | } |
c906108c | 2015 | |
033a42c2 | 2016 | return language_unknown; |
c906108c SS |
2017 | } |
2018 | \f | |
033a42c2 MK |
2019 | |
2020 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
2021 | void _initialize_stack (void); | |
2022 | ||
c906108c | 2023 | void |
fba45db2 | 2024 | _initialize_stack (void) |
c906108c | 2025 | { |
c5aa993b | 2026 | #if 0 |
c906108c SS |
2027 | backtrace_limit = 30; |
2028 | #endif | |
2029 | ||
1bedd215 AC |
2030 | add_com ("return", class_stack, return_command, _("\ |
2031 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
2032 | Control remains in the debugger, but when you continue\n\ |
2033 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
2034 | If an argument is given, it is an expression for the value to return.")); |
2035 | ||
2036 | add_com ("up", class_stack, up_command, _("\ | |
2037 | Select and print stack frame that called this one.\n\ | |
2038 | An argument says how many frames up to go.")); | |
2039 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
2040 | Same as the `up' command, but does not print anything.\n\ | |
2041 | This is useful in command scripts.")); | |
2042 | ||
2043 | add_com ("down", class_stack, down_command, _("\ | |
2044 | Select and print stack frame called by this one.\n\ | |
2045 | An argument says how many frames down to go.")); | |
c906108c SS |
2046 | add_com_alias ("do", "down", class_stack, 1); |
2047 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
2048 | add_com ("down-silently", class_support, down_silently_command, _("\ |
2049 | Same as the `down' command, but does not print anything.\n\ | |
2050 | This is useful in command scripts.")); | |
c906108c | 2051 | |
1bedd215 AC |
2052 | add_com ("frame", class_stack, frame_command, _("\ |
2053 | Select and print a stack frame.\n\ | |
c906108c SS |
2054 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ |
2055 | An argument specifies the frame to select.\n\ | |
2056 | It can be a stack frame number or the address of the frame.\n\ | |
2057 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 2058 | a command file or a user-defined command.")); |
c906108c SS |
2059 | |
2060 | add_com_alias ("f", "frame", class_stack, 1); | |
2061 | ||
2062 | if (xdb_commands) | |
2063 | { | |
c5aa993b | 2064 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 2065 | _("Print the current stack frame.\n")); |
c906108c SS |
2066 | add_com_alias ("V", "frame", class_stack, 1); |
2067 | } | |
1bedd215 AC |
2068 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
2069 | Select a stack frame without printing anything.\n\ | |
c906108c | 2070 | An argument specifies the frame to select.\n\ |
1bedd215 | 2071 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 2072 | |
1bedd215 AC |
2073 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2074 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
c906108c | 2075 | With a negative argument, print outermost -COUNT frames.\n\ |
1bedd215 | 2076 | Use of the 'full' qualifier also prints the values of the local variables.\n")); |
c906108c SS |
2077 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2078 | if (xdb_commands) | |
2079 | { | |
2080 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 AC |
2081 | add_com ("T", class_stack, backtrace_full_command, _("\ |
2082 | Print backtrace of all stack frames, or innermost COUNT frames \n\ | |
c906108c SS |
2083 | and the values of the local variables.\n\ |
2084 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2085 | Usage: T <count>\n")); |
c906108c SS |
2086 | } |
2087 | ||
2088 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2089 | add_info ("stack", backtrace_command, | |
1bedd215 | 2090 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2091 | add_info_alias ("s", "stack", 1); |
2092 | add_info ("frame", frame_info, | |
1bedd215 | 2093 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2094 | add_info_alias ("f", "frame", 1); |
2095 | add_info ("locals", locals_info, | |
1bedd215 | 2096 | _("Local variables of current stack frame.")); |
c906108c | 2097 | add_info ("args", args_info, |
1bedd215 | 2098 | _("Argument variables of current stack frame.")); |
c906108c | 2099 | if (xdb_commands) |
c5aa993b | 2100 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2101 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2102 | |
2103 | if (dbx_commands) | |
1bedd215 AC |
2104 | add_com ("func", class_stack, func_command, _("\ |
2105 | Select the stack frame that contains <func>.\n\ | |
2106 | Usage: func <name>\n")); | |
c906108c SS |
2107 | |
2108 | add_info ("catch", catch_info, | |
1bedd215 | 2109 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c | 2110 | |
88408340 JB |
2111 | add_setshow_enum_cmd ("frame-arguments", class_stack, |
2112 | print_frame_arguments_choices, &print_frame_arguments, | |
2113 | _("Set printing of non-scalar frame arguments"), | |
2114 | _("Show printing of non-scalar frame arguments"), | |
2115 | NULL, NULL, NULL, &setprintlist, &showprintlist); | |
2116 | ||
30c33a9f HZ |
2117 | add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack, |
2118 | &disassemble_next_line, _("\ | |
80a0ea0f EZ |
2119 | Set whether to disassemble next source line or insn when execution stops."), _("\ |
2120 | Show whether to disassemble next source line or insn when execution stops."), _("\ | |
2121 | If ON, GDB will display disassembly of the next source line, in addition\n\ | |
2122 | to displaying the source line itself. If the next source line cannot\n\ | |
2123 | be displayed (e.g., source is unavailable or there's no line info), GDB\n\ | |
2124 | will display disassembly of next instruction instead of showing the\n\ | |
2125 | source line.\n\ | |
2126 | If AUTO, display disassembly of next instruction only if the source line\n\ | |
2127 | cannot be displayed.\n\ | |
2128 | If OFF (which is the default), never display the disassembly of the next\n\ | |
2129 | source line."), | |
30c33a9f HZ |
2130 | NULL, |
2131 | show_disassemble_next_line, | |
2132 | &setlist, &showlist); | |
a362e3d3 | 2133 | disassemble_next_line = AUTO_BOOLEAN_FALSE; |
30c33a9f | 2134 | |
c906108c | 2135 | #if 0 |
1a966eab AC |
2136 | add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\ |
2137 | "Specify maximum number of frames for \"backtrace\" to print by default."), | |
c906108c | 2138 | &setlist); |
1bedd215 AC |
2139 | add_info ("backtrace-limit", backtrace_limit_info, _("\ |
2140 | The maximum number of frames for \"backtrace\" to print by default.")); | |
c906108c SS |
2141 | #endif |
2142 | } |