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, |
9b254dd1 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008 |
0fd88904 | 5 | 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" |
c906108c | 48 | |
033a42c2 MK |
49 | #include "gdb_assert.h" |
50 | #include <ctype.h> | |
51 | #include "gdb_string.h" | |
c906108c | 52 | |
9a4105ab | 53 | void (*deprecated_selected_frame_level_changed_hook) (int); |
c906108c | 54 | |
88408340 JB |
55 | /* The possible choices of "set print frame-arguments, and the value |
56 | of this setting. */ | |
57 | ||
58 | static const char *print_frame_arguments_choices[] = | |
59 | {"all", "scalars", "none", NULL}; | |
60 | static const char *print_frame_arguments = "all"; | |
61 | ||
a58dd373 | 62 | /* Prototypes for local functions. */ |
c906108c | 63 | |
d9fcf2fb JM |
64 | static void print_frame_local_vars (struct frame_info *, int, |
65 | struct ui_file *); | |
c906108c | 66 | |
033a42c2 MK |
67 | static void print_frame (struct frame_info *frame, int print_level, |
68 | enum print_what print_what, int print_args, | |
c5394b80 JM |
69 | struct symtab_and_line sal); |
70 | ||
c906108c SS |
71 | /* Zero means do things normally; we are interacting directly with the |
72 | user. One means print the full filename and linenumber when a | |
73 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
74 | parse. Two means print similar annotations, but in many more | |
75 | cases and in a slightly different syntax. */ | |
76 | ||
77 | int annotation_level = 0; | |
c906108c | 78 | \f |
c5aa993b JM |
79 | |
80 | struct print_stack_frame_args | |
033a42c2 MK |
81 | { |
82 | struct frame_info *frame; | |
83 | int print_level; | |
84 | enum print_what print_what; | |
85 | int print_args; | |
86 | }; | |
87 | ||
88 | /* Show or print the frame arguments; stub for catch_errors. */ | |
89 | ||
c906108c | 90 | static int |
fba45db2 | 91 | print_stack_frame_stub (void *args) |
c906108c | 92 | { |
c789492a | 93 | struct print_stack_frame_args *p = args; |
033a42c2 | 94 | int center = (p->print_what == SRC_LINE || p->print_what == SRC_AND_LOC); |
c906108c | 95 | |
033a42c2 MK |
96 | print_frame_info (p->frame, p->print_level, p->print_what, p->print_args); |
97 | set_current_sal_from_frame (p->frame, center); | |
c906108c SS |
98 | return 0; |
99 | } | |
100 | ||
033a42c2 | 101 | /* Show or print a stack frame FRAME briefly. The output is format |
d762c46a AC |
102 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
103 | relative level, function name, argument list, and file name and | |
104 | line number. If the frame's PC is not at the beginning of the | |
105 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
106 | |
107 | void | |
033a42c2 | 108 | print_stack_frame (struct frame_info *frame, int print_level, |
0faf0076 | 109 | enum print_what print_what) |
c906108c SS |
110 | { |
111 | struct print_stack_frame_args args; | |
112 | ||
033a42c2 | 113 | args.frame = frame; |
0faf0076 AC |
114 | args.print_level = print_level; |
115 | args.print_what = print_what; | |
aaf9e9fd DP |
116 | /* For mi, alway print location and address. */ |
117 | args.print_what = ui_out_is_mi_like_p (uiout) ? LOC_AND_ADDRESS : print_what; | |
0faf0076 | 118 | args.print_args = 1; |
c906108c | 119 | |
5c3ce3f7 | 120 | catch_errors (print_stack_frame_stub, &args, "", RETURN_MASK_ERROR); |
7789c6f5 | 121 | } |
c906108c | 122 | |
c5aa993b JM |
123 | struct print_args_args |
124 | { | |
c906108c | 125 | struct symbol *func; |
033a42c2 | 126 | struct frame_info *frame; |
d9fcf2fb | 127 | struct ui_file *stream; |
c906108c SS |
128 | }; |
129 | ||
033a42c2 | 130 | static int print_args_stub (void *args); |
c906108c | 131 | |
033a42c2 MK |
132 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
133 | the offset of the first nameless argument, and NUM is the number of | |
134 | nameless arguments to print. FIRST is nonzero if this is the first | |
135 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
136 | |
137 | static void | |
033a42c2 | 138 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
139 | int first, struct ui_file *stream) |
140 | { | |
141 | int i; | |
142 | CORE_ADDR argsaddr; | |
143 | long arg_value; | |
144 | ||
145 | for (i = 0; i < num; i++) | |
146 | { | |
147 | QUIT; | |
033a42c2 | 148 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
149 | if (!argsaddr) |
150 | return; | |
151 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
152 | if (!first) | |
153 | fprintf_filtered (stream, ", "); | |
154 | fprintf_filtered (stream, "%ld", arg_value); | |
155 | first = 0; | |
156 | start += sizeof (int); | |
157 | } | |
158 | } | |
159 | ||
88408340 JB |
160 | /* Return non-zero if the debugger should print the value of the provided |
161 | symbol parameter (SYM). */ | |
162 | ||
163 | static int | |
164 | print_this_frame_argument_p (struct symbol *sym) | |
165 | { | |
166 | struct type *type; | |
167 | ||
168 | /* If the user asked to print no argument at all, then obviously | |
169 | do not print this argument. */ | |
170 | ||
171 | if (strcmp (print_frame_arguments, "none") == 0) | |
172 | return 0; | |
173 | ||
174 | /* If the user asked to print all arguments, then we should print | |
175 | that one. */ | |
176 | ||
177 | if (strcmp (print_frame_arguments, "all") == 0) | |
178 | return 1; | |
179 | ||
180 | /* The user asked to print only the scalar arguments, so do not | |
181 | print the non-scalar ones. */ | |
182 | ||
183 | type = CHECK_TYPEDEF (SYMBOL_TYPE (sym)); | |
0366cf3f JB |
184 | while (TYPE_CODE (type) == TYPE_CODE_REF) |
185 | type = CHECK_TYPEDEF (TYPE_TARGET_TYPE (type)); | |
88408340 JB |
186 | switch (TYPE_CODE (type)) |
187 | { | |
188 | case TYPE_CODE_ARRAY: | |
189 | case TYPE_CODE_STRUCT: | |
190 | case TYPE_CODE_UNION: | |
191 | case TYPE_CODE_SET: | |
192 | case TYPE_CODE_STRING: | |
193 | case TYPE_CODE_BITSTRING: | |
194 | return 0; | |
195 | default: | |
196 | return 1; | |
197 | } | |
198 | } | |
199 | ||
033a42c2 MK |
200 | /* Print the arguments of frame FRAME on STREAM, given the function |
201 | FUNC running in that frame (as a symbol), where NUM is the number | |
202 | of arguments according to the stack frame (or -1 if the number of | |
203 | arguments is unknown). */ | |
8d3b0994 | 204 | |
e3168615 | 205 | /* Note that currently the "number of arguments according to the |
033a42c2 | 206 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 207 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
208 | |
209 | static void | |
033a42c2 MK |
210 | print_frame_args (struct symbol *func, struct frame_info *frame, |
211 | int num, struct ui_file *stream) | |
8d3b0994 | 212 | { |
8d3b0994 | 213 | int first = 1; |
8d3b0994 | 214 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
215 | at the highest offset, or -1 if we haven't come to a stack |
216 | argument yet. */ | |
8d3b0994 | 217 | long highest_offset = -1; |
8d3b0994 AC |
218 | /* Number of ints of arguments that we have printed so far. */ |
219 | int args_printed = 0; | |
220 | struct cleanup *old_chain, *list_chain; | |
221 | struct ui_stream *stb; | |
222 | ||
223 | stb = ui_out_stream_new (uiout); | |
224 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
225 | ||
226 | if (func) | |
227 | { | |
033a42c2 MK |
228 | struct block *b = SYMBOL_BLOCK_VALUE (func); |
229 | struct dict_iterator iter; | |
230 | struct symbol *sym; | |
231 | struct value *val; | |
8d3b0994 | 232 | |
de4f826b | 233 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 AC |
234 | { |
235 | QUIT; | |
236 | ||
237 | /* Keep track of the highest stack argument offset seen, and | |
238 | skip over any kinds of symbols we don't care about. */ | |
239 | ||
2a2d4dc3 AS |
240 | if (!SYMBOL_IS_ARGUMENT (sym)) |
241 | continue; | |
242 | ||
8d3b0994 AC |
243 | switch (SYMBOL_CLASS (sym)) |
244 | { | |
245 | case LOC_ARG: | |
246 | case LOC_REF_ARG: | |
247 | { | |
248 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 249 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
250 | |
251 | /* Compute address of next argument by adding the size of | |
252 | this argument and rounding to an int boundary. */ | |
253 | current_offset = | |
254 | ((current_offset + arg_size + sizeof (int) - 1) | |
255 | & ~(sizeof (int) - 1)); | |
256 | ||
033a42c2 MK |
257 | /* If this is the highest offset seen yet, set |
258 | highest_offset. */ | |
8d3b0994 AC |
259 | if (highest_offset == -1 |
260 | || (current_offset > highest_offset)) | |
261 | highest_offset = current_offset; | |
262 | ||
033a42c2 MK |
263 | /* Add the number of ints we're about to print to |
264 | args_printed. */ | |
8d3b0994 AC |
265 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
266 | } | |
267 | ||
033a42c2 MK |
268 | /* We care about types of symbols, but don't need to |
269 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 270 | case LOC_REGISTER: |
8d3b0994 | 271 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
272 | case LOC_COMPUTED: |
273 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 274 | default: |
2a2d4dc3 | 275 | break; |
8d3b0994 AC |
276 | } |
277 | ||
278 | /* We have to look up the symbol because arguments can have | |
279 | two entries (one a parameter, one a local) and the one we | |
280 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 281 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
282 | small structure and gcc2 when the argument type is float |
283 | and it is passed as a double and converted to float by | |
284 | the prologue (in the latter case the type of the LOC_ARG | |
285 | symbol is double and the type of the LOC_LOCAL symbol is | |
286 | float). */ | |
033a42c2 MK |
287 | /* But if the parameter name is null, don't try it. Null |
288 | parameter names occur on the RS/6000, for traceback | |
289 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 290 | |
3567439c | 291 | if (*SYMBOL_LINKAGE_NAME (sym)) |
8d3b0994 AC |
292 | { |
293 | struct symbol *nsym; | |
3567439c | 294 | nsym = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), |
2570f2b7 | 295 | b, VAR_DOMAIN, NULL); |
55765a25 | 296 | gdb_assert (nsym != NULL); |
2a2d4dc3 AS |
297 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER |
298 | && !SYMBOL_IS_ARGUMENT (nsym)) | |
8d3b0994 | 299 | { |
033a42c2 MK |
300 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
301 | that it was passed on the stack and loaded into a | |
302 | register, or passed in a register and stored in a | |
303 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
304 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
305 | |
306 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
307 | |
308 | (1) Because find_saved_registers may be slow for | |
309 | remote debugging. | |
310 | ||
311 | (2) Because registers are often re-used and stack | |
312 | slots rarely (never?) are. Therefore using | |
313 | the stack slot is much less likely to print | |
314 | garbage. | |
8d3b0994 AC |
315 | |
316 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
317 | |
318 | (1) So that the backtrace prints the same value | |
319 | as "print foo". I see no compelling reason | |
320 | why this needs to be the case; having the | |
321 | backtrace print the value which was passed | |
322 | in, and "print foo" print the value as | |
323 | modified within the called function, makes | |
324 | perfect sense to me. | |
325 | ||
326 | Additional note: It might be nice if "info args" | |
327 | displayed both values. | |
328 | ||
329 | One more note: There is a case with SPARC | |
330 | structure passing where we need to use the | |
331 | LOC_REGISTER, but this is dealt with by creating | |
332 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
333 | |
334 | /* Leave sym (the LOC_ARG) alone. */ | |
335 | ; | |
336 | } | |
337 | else | |
338 | sym = nsym; | |
339 | } | |
340 | ||
341 | /* Print the current arg. */ | |
342 | if (!first) | |
343 | ui_out_text (uiout, ", "); | |
344 | ui_out_wrap_hint (uiout, " "); | |
345 | ||
346 | annotate_arg_begin (); | |
347 | ||
348 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
349 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym), | |
033a42c2 MK |
350 | SYMBOL_LANGUAGE (sym), |
351 | DMGL_PARAMS | DMGL_ANSI); | |
8d3b0994 AC |
352 | ui_out_field_stream (uiout, "name", stb); |
353 | annotate_arg_name_end (); | |
354 | ui_out_text (uiout, "="); | |
355 | ||
88408340 JB |
356 | if (print_this_frame_argument_p (sym)) |
357 | { | |
358 | /* Avoid value_print because it will deref ref parameters. | |
359 | We just want to print their addresses. Print ??? for | |
360 | args whose address we do not know. We pass 2 as | |
361 | "recurse" to val_print because our standard indentation | |
362 | here is 4 spaces, and val_print indents 2 for each | |
363 | recurse. */ | |
364 | val = read_var_value (sym, frame); | |
365 | ||
366 | annotate_arg_value (val == NULL ? NULL : value_type (val)); | |
367 | ||
368 | if (val) | |
369 | { | |
d8ca156b | 370 | const struct language_defn *language; |
79a45b7d | 371 | struct value_print_options opts; |
d8ca156b JB |
372 | |
373 | /* Use the appropriate language to display our symbol, | |
374 | unless the user forced the language to a specific | |
375 | language. */ | |
376 | if (language_mode == language_mode_auto) | |
377 | language = language_def (SYMBOL_LANGUAGE (sym)); | |
378 | else | |
379 | language = current_language; | |
380 | ||
79a45b7d TT |
381 | get_raw_print_options (&opts); |
382 | opts.deref_ref = 0; | |
383 | common_val_print (val, stb->stream, 2, | |
384 | &opts, language); | |
88408340 JB |
385 | ui_out_field_stream (uiout, "value", stb); |
386 | } | |
387 | else | |
388 | ui_out_text (uiout, "???"); | |
389 | } | |
390 | else | |
391 | ui_out_text (uiout, "..."); | |
8d3b0994 | 392 | |
8d3b0994 AC |
393 | |
394 | /* Invoke ui_out_tuple_end. */ | |
395 | do_cleanups (list_chain); | |
396 | ||
397 | annotate_arg_end (); | |
398 | ||
399 | first = 0; | |
400 | } | |
401 | } | |
402 | ||
403 | /* Don't print nameless args in situations where we don't know | |
404 | enough about the stack to find them. */ | |
405 | if (num != -1) | |
406 | { | |
407 | long start; | |
408 | ||
409 | if (highest_offset == -1) | |
7500260a | 410 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
411 | else |
412 | start = highest_offset; | |
413 | ||
033a42c2 | 414 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
415 | first, stream); |
416 | } | |
033a42c2 | 417 | |
8d3b0994 AC |
418 | do_cleanups (old_chain); |
419 | } | |
420 | ||
033a42c2 | 421 | /* Stub for catch_errors. */ |
c906108c SS |
422 | |
423 | static int | |
4efb68b1 | 424 | print_args_stub (void *args) |
c906108c | 425 | { |
033a42c2 | 426 | struct print_args_args *p = args; |
12368003 | 427 | struct gdbarch *gdbarch = get_frame_arch (p->frame); |
c906108c | 428 | int numargs; |
c906108c | 429 | |
12368003 | 430 | if (gdbarch_frame_num_args_p (gdbarch)) |
983a287a | 431 | { |
12368003 | 432 | numargs = gdbarch_frame_num_args (gdbarch, p->frame); |
983a287a AC |
433 | gdb_assert (numargs >= 0); |
434 | } | |
435 | else | |
436 | numargs = -1; | |
033a42c2 | 437 | print_frame_args (p->func, p->frame, numargs, p->stream); |
c906108c SS |
438 | return 0; |
439 | } | |
440 | ||
033a42c2 MK |
441 | /* Set the current source and line to the location given by frame |
442 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
443 | line is in the center of the next 'list'. */ | |
c789492a | 444 | |
7abfe014 | 445 | void |
033a42c2 | 446 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
447 | { |
448 | struct symtab_and_line sal; | |
449 | ||
033a42c2 | 450 | find_frame_sal (frame, &sal); |
c789492a FL |
451 | if (sal.symtab) |
452 | { | |
453 | if (center) | |
454 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
455 | set_current_source_symtab_and_line (&sal); | |
456 | } | |
457 | } | |
458 | ||
033a42c2 MK |
459 | /* Print information about frame FRAME. The output is format according |
460 | to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of | |
461 | PRINT_WHAT is: | |
462 | ||
463 | SRC_LINE: Print only source line. | |
464 | LOCATION: Print only location. | |
465 | LOC_AND_SRC: Print location and source line. | |
466 | ||
467 | Used in "where" output, and to emit breakpoint or step | |
468 | messages. */ | |
c906108c | 469 | |
7789c6f5 | 470 | void |
033a42c2 | 471 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 472 | enum print_what print_what, int print_args) |
c906108c SS |
473 | { |
474 | struct symtab_and_line sal; | |
c5394b80 JM |
475 | int source_print; |
476 | int location_print; | |
c906108c | 477 | |
033a42c2 MK |
478 | if (get_frame_type (frame) == DUMMY_FRAME |
479 | || get_frame_type (frame) == SIGTRAMP_FRAME) | |
c906108c | 480 | { |
075559bc AC |
481 | struct cleanup *uiout_cleanup |
482 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 483 | |
033a42c2 MK |
484 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
485 | get_frame_pc (frame)); | |
6a3fe0a4 | 486 | |
c906108c | 487 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 488 | to list for this frame. */ |
0faf0076 | 489 | if (print_level) |
52c6a6ac JJ |
490 | { |
491 | ui_out_text (uiout, "#"); | |
0faf0076 | 492 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 493 | frame_relative_level (frame)); |
52c6a6ac | 494 | } |
075559bc | 495 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 496 | { |
075559bc | 497 | annotate_frame_address (); |
033a42c2 | 498 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
075559bc | 499 | annotate_frame_address_end (); |
52c6a6ac | 500 | } |
6a3fe0a4 | 501 | |
033a42c2 | 502 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
503 | { |
504 | annotate_function_call (); | |
505 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
506 | } | |
033a42c2 | 507 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
508 | { |
509 | annotate_signal_handler_caller (); | |
510 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
511 | } | |
512 | ui_out_text (uiout, "\n"); | |
c906108c | 513 | annotate_frame_end (); |
075559bc AC |
514 | |
515 | do_cleanups (uiout_cleanup); | |
c906108c SS |
516 | return; |
517 | } | |
518 | ||
033a42c2 MK |
519 | /* If FRAME is not the innermost frame, that normally means that |
520 | FRAME->pc points to *after* the call instruction, and we want to | |
521 | get the line containing the call, never the next line. But if | |
522 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
523 | next frame was not entered as the result of a call, and we want | |
524 | to get the line containing FRAME->pc. */ | |
525 | find_frame_sal (frame, &sal); | |
c906108c | 526 | |
0faf0076 AC |
527 | location_print = (print_what == LOCATION |
528 | || print_what == LOC_AND_ADDRESS | |
529 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
530 | |
531 | if (location_print || !sal.symtab) | |
033a42c2 | 532 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 533 | |
0faf0076 | 534 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 535 | |
c5394b80 JM |
536 | if (source_print && sal.symtab) |
537 | { | |
538 | int done = 0; | |
0faf0076 | 539 | int mid_statement = ((print_what == SRC_LINE) |
033a42c2 | 540 | && (get_frame_pc (frame) != sal.pc)); |
c5394b80 JM |
541 | |
542 | if (annotation_level) | |
543 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 544 | get_frame_pc (frame)); |
c5394b80 JM |
545 | if (!done) |
546 | { | |
9a4105ab | 547 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
548 | deprecated_print_frame_info_listing_hook (sal.symtab, |
549 | sal.line, | |
550 | sal.line + 1, 0); | |
ba4bbdcb | 551 | else |
c5394b80 | 552 | { |
79a45b7d TT |
553 | struct value_print_options opts; |
554 | get_user_print_options (&opts); | |
ba4bbdcb KS |
555 | /* We used to do this earlier, but that is clearly |
556 | wrong. This function is used by many different | |
557 | parts of gdb, including normal_stop in infrun.c, | |
558 | which uses this to print out the current PC | |
559 | when we stepi/nexti into the middle of a source | |
560 | line. Only the command line really wants this | |
561 | behavior. Other UIs probably would like the | |
cbd3c883 | 562 | ability to decide for themselves if it is desired. */ |
79a45b7d | 563 | if (opts.addressprint && mid_statement) |
ba4bbdcb | 564 | { |
033a42c2 | 565 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
ba4bbdcb | 566 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
567 | } |
568 | ||
569 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 570 | } |
c5394b80 | 571 | } |
c5394b80 JM |
572 | } |
573 | ||
0faf0076 | 574 | if (print_what != LOCATION) |
033a42c2 | 575 | set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line); |
c5394b80 JM |
576 | |
577 | annotate_frame_end (); | |
578 | ||
579 | gdb_flush (gdb_stdout); | |
580 | } | |
581 | ||
582 | static void | |
033a42c2 MK |
583 | print_frame (struct frame_info *frame, int print_level, |
584 | enum print_what print_what, int print_args, | |
c5394b80 JM |
585 | struct symtab_and_line sal) |
586 | { | |
587 | struct symbol *func; | |
033a42c2 | 588 | char *funname = NULL; |
c5394b80 | 589 | enum language funlang = language_unknown; |
8b93c638 | 590 | struct ui_stream *stb; |
033a42c2 | 591 | struct cleanup *old_chain, *list_chain; |
79a45b7d | 592 | struct value_print_options opts; |
8b93c638 JM |
593 | |
594 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 595 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
c5394b80 | 596 | |
033a42c2 | 597 | func = find_pc_function (get_frame_address_in_block (frame)); |
c906108c SS |
598 | if (func) |
599 | { | |
600 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
601 | function (when we are in the first function in a file which |
602 | is compiled without debugging symbols, the previous function | |
603 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
604 | that is supposed to tell us where the file with debugging |
605 | symbols ends has been truncated by ar because it is longer | |
606 | than 15 characters). This also occurs if the user uses asm() | |
607 | to create a function but not stabs for it (in a file compiled | |
608 | with -g). | |
c5aa993b JM |
609 | |
610 | So look in the minimal symbol tables as well, and if it comes | |
611 | up with a larger address for the function use that instead. | |
033a42c2 MK |
612 | I don't think this can ever cause any problems; there |
613 | shouldn't be any minimal symbols in the middle of a function; | |
614 | if this is ever changed many parts of GDB will need to be | |
615 | changed (and we'll create a find_pc_minimal_function or some | |
616 | such). */ | |
617 | ||
618 | struct minimal_symbol *msymbol = | |
619 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 620 | |
c906108c | 621 | if (msymbol != NULL |
c5aa993b | 622 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
623 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
624 | { | |
c906108c SS |
625 | /* We also don't know anything about the function besides |
626 | its address and name. */ | |
627 | func = 0; | |
3567439c | 628 | funname = SYMBOL_PRINT_NAME (msymbol); |
c906108c SS |
629 | funlang = SYMBOL_LANGUAGE (msymbol); |
630 | } | |
631 | else | |
632 | { | |
3567439c | 633 | funname = SYMBOL_PRINT_NAME (func); |
c906108c | 634 | funlang = SYMBOL_LANGUAGE (func); |
c5aa993b JM |
635 | if (funlang == language_cplus) |
636 | { | |
033a42c2 MK |
637 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
638 | to display the demangled name that we already have | |
639 | stored in the symbol table, but we stored a version | |
640 | with DMGL_PARAMS turned on, and here we don't want to | |
3567439c DJ |
641 | display parameters. So remove the parameters. */ |
642 | char *func_only = cp_remove_params (funname); | |
643 | if (func_only) | |
644 | { | |
645 | funname = func_only; | |
646 | make_cleanup (xfree, func_only); | |
647 | } | |
c5aa993b | 648 | } |
c906108c SS |
649 | } |
650 | } | |
651 | else | |
652 | { | |
033a42c2 MK |
653 | struct minimal_symbol *msymbol = |
654 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
655 | ||
c906108c SS |
656 | if (msymbol != NULL) |
657 | { | |
3567439c | 658 | funname = SYMBOL_PRINT_NAME (msymbol); |
c906108c SS |
659 | funlang = SYMBOL_LANGUAGE (msymbol); |
660 | } | |
661 | } | |
662 | ||
033a42c2 MK |
663 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
664 | get_frame_pc (frame)); | |
c5394b80 | 665 | |
666547aa | 666 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
c5394b80 | 667 | |
0faf0076 | 668 | if (print_level) |
8b93c638 | 669 | { |
8b93c638 | 670 | ui_out_text (uiout, "#"); |
0faf0076 | 671 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 672 | frame_relative_level (frame)); |
8b93c638 | 673 | } |
79a45b7d TT |
674 | get_user_print_options (&opts); |
675 | if (opts.addressprint) | |
033a42c2 | 676 | if (get_frame_pc (frame) != sal.pc || !sal.symtab |
0faf0076 | 677 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
678 | { |
679 | annotate_frame_address (); | |
033a42c2 | 680 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
8b93c638 JM |
681 | annotate_frame_address_end (); |
682 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
683 | } |
684 | annotate_frame_function_name (); | |
033a42c2 MK |
685 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
686 | funlang, DMGL_ANSI); | |
8b93c638 JM |
687 | ui_out_field_stream (uiout, "func", stb); |
688 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
689 | annotate_frame_args (); |
690 | ||
8b93c638 | 691 | ui_out_text (uiout, " ("); |
0faf0076 | 692 | if (print_args) |
c906108c | 693 | { |
c5394b80 | 694 | struct print_args_args args; |
d493eb33 | 695 | struct cleanup *args_list_chain; |
033a42c2 | 696 | args.frame = frame; |
c5394b80 JM |
697 | args.func = func; |
698 | args.stream = gdb_stdout; | |
68c81b54 | 699 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
5c3ce3f7 | 700 | catch_errors (print_args_stub, &args, "", RETURN_MASK_ERROR); |
033a42c2 MK |
701 | /* FIXME: ARGS must be a list. If one argument is a string it |
702 | will have " that will not be properly escaped. */ | |
666547aa | 703 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 704 | do_cleanups (args_list_chain); |
c5394b80 JM |
705 | QUIT; |
706 | } | |
8b93c638 | 707 | ui_out_text (uiout, ")"); |
c5394b80 JM |
708 | if (sal.symtab && sal.symtab->filename) |
709 | { | |
710 | annotate_frame_source_begin (); | |
8b93c638 JM |
711 | ui_out_wrap_hint (uiout, " "); |
712 | ui_out_text (uiout, " at "); | |
713 | annotate_frame_source_file (); | |
714 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
715 | if (ui_out_is_mi_like_p (uiout)) |
716 | { | |
717 | const char *fullname = symtab_to_fullname (sal.symtab); | |
718 | if (fullname != NULL) | |
719 | ui_out_field_string (uiout, "fullname", fullname); | |
720 | } | |
8b93c638 JM |
721 | annotate_frame_source_file_end (); |
722 | ui_out_text (uiout, ":"); | |
723 | annotate_frame_source_line (); | |
724 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
725 | annotate_frame_source_end (); |
726 | } | |
c906108c | 727 | |
c5394b80 | 728 | if (!funname || (!sal.symtab || !sal.symtab->filename)) |
c906108c | 729 | { |
a77053c2 | 730 | #ifdef PC_SOLIB |
033a42c2 | 731 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 732 | #else |
033a42c2 | 733 | char *lib = solib_address (get_frame_pc (frame)); |
a77053c2 | 734 | #endif |
c5394b80 | 735 | if (lib) |
c906108c | 736 | { |
c5394b80 | 737 | annotate_frame_where (); |
8b93c638 JM |
738 | ui_out_wrap_hint (uiout, " "); |
739 | ui_out_text (uiout, " from "); | |
740 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 741 | } |
c906108c | 742 | } |
e514a9d6 | 743 | |
666547aa | 744 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 745 | do_cleanups (list_chain); |
8b93c638 JM |
746 | ui_out_text (uiout, "\n"); |
747 | do_cleanups (old_chain); | |
c906108c SS |
748 | } |
749 | \f | |
c5aa993b | 750 | |
033a42c2 MK |
751 | /* Read a frame specification in whatever the appropriate format is |
752 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
753 | specification is in any way invalid (so this function never returns | |
754 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
755 | the default selected frame was used. */ | |
c906108c | 756 | |
1c8831c5 AC |
757 | static struct frame_info * |
758 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
759 | int *selected_frame_p) | |
c906108c | 760 | { |
1c8831c5 AC |
761 | int numargs; |
762 | struct value *args[4]; | |
763 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 764 | |
1c8831c5 AC |
765 | if (frame_exp == NULL) |
766 | numargs = 0; | |
767 | else | |
c906108c | 768 | { |
1c8831c5 | 769 | char *addr_string; |
c906108c SS |
770 | struct cleanup *tmp_cleanup; |
771 | ||
1c8831c5 AC |
772 | numargs = 0; |
773 | while (1) | |
c906108c | 774 | { |
1c8831c5 AC |
775 | char *addr_string; |
776 | struct cleanup *cleanup; | |
777 | const char *p; | |
778 | ||
779 | /* Skip leading white space, bail of EOL. */ | |
780 | while (isspace (*frame_exp)) | |
781 | frame_exp++; | |
782 | if (!*frame_exp) | |
783 | break; | |
c906108c | 784 | |
1c8831c5 AC |
785 | /* Parse the argument, extract it, save it. */ |
786 | for (p = frame_exp; | |
787 | *p && !isspace (*p); | |
788 | p++); | |
789 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 790 | frame_exp = p; |
1c8831c5 AC |
791 | cleanup = make_cleanup (xfree, addr_string); |
792 | ||
793 | /* NOTE: Parse and evaluate expression, but do not use | |
794 | functions such as parse_and_eval_long or | |
795 | parse_and_eval_address to also extract the value. | |
796 | Instead value_as_long and value_as_address are used. | |
797 | This avoids problems with expressions that contain | |
798 | side-effects. */ | |
799 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 800 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
801 | args[numargs++] = parse_and_eval (addr_string); |
802 | ||
803 | do_cleanups (cleanup); | |
c906108c SS |
804 | } |
805 | } | |
806 | ||
1c8831c5 AC |
807 | /* If no args, default to the selected frame. */ |
808 | if (numargs == 0) | |
c906108c | 809 | { |
1c8831c5 AC |
810 | if (selected_frame_p != NULL) |
811 | (*selected_frame_p) = 1; | |
812 | return get_selected_frame (message); | |
813 | } | |
c906108c | 814 | |
1c8831c5 AC |
815 | /* None of the remaining use the selected frame. */ |
816 | if (selected_frame_p != NULL) | |
98f276a0 | 817 | (*selected_frame_p) = 0; |
c906108c | 818 | |
1c8831c5 AC |
819 | /* Assume the single arg[0] is an integer, and try using that to |
820 | select a frame relative to current. */ | |
821 | if (numargs == 1) | |
822 | { | |
823 | struct frame_info *fid; | |
824 | int level = value_as_long (args[0]); | |
825 | fid = find_relative_frame (get_current_frame (), &level); | |
826 | if (level == 0) | |
827 | /* find_relative_frame was successful */ | |
828 | return fid; | |
829 | } | |
c906108c | 830 | |
1c8831c5 AC |
831 | /* Convert each value into a corresponding address. */ |
832 | { | |
833 | int i; | |
834 | for (i = 0; i < numargs; i++) | |
835 | addrs[i] = value_as_address (args[0]); | |
836 | } | |
c5aa993b | 837 | |
1c8831c5 AC |
838 | /* Assume that the single arg[0] is an address, use that to identify |
839 | a frame with a matching ID. Should this also accept stack/pc or | |
840 | stack/pc/special. */ | |
841 | if (numargs == 1) | |
842 | { | |
843 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
844 | struct frame_info *fid; | |
845 | ||
1c8831c5 AC |
846 | /* If (s)he specifies the frame with an address, he deserves |
847 | what (s)he gets. Still, give the highest one that matches. | |
848 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
849 | know). */ | |
850 | for (fid = get_current_frame (); | |
851 | fid != NULL; | |
852 | fid = get_prev_frame (fid)) | |
853 | { | |
854 | if (frame_id_eq (id, get_frame_id (fid))) | |
855 | { | |
eb2f4a08 DJ |
856 | while (frame_id_eq (id, frame_unwind_id (fid))) |
857 | fid = get_prev_frame (fid); | |
1c8831c5 AC |
858 | return fid; |
859 | } | |
860 | } | |
c906108c SS |
861 | } |
862 | ||
1c8831c5 AC |
863 | /* We couldn't identify the frame as an existing frame, but |
864 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
865 | if (numargs == 1) |
866 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
867 | else if (numargs == 2) |
868 | return create_new_frame (addrs[0], addrs[1]); | |
869 | else | |
8a3fe4f8 | 870 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
871 | } |
872 | ||
9c833c82 | 873 | static struct frame_info * |
1c8831c5 AC |
874 | parse_frame_specification (char *frame_exp) |
875 | { | |
876 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
877 | } |
878 | ||
033a42c2 MK |
879 | /* Print verbosely the selected frame or the frame at address |
880 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
881 | |
882 | static void | |
fba45db2 | 883 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
884 | { |
885 | struct frame_info *fi; | |
886 | struct symtab_and_line sal; | |
887 | struct symbol *func; | |
888 | struct symtab *s; | |
889 | struct frame_info *calling_frame_info; | |
890 | int i, count, numregs; | |
891 | char *funname = 0; | |
892 | enum language funlang = language_unknown; | |
82de1e5b | 893 | const char *pc_regname; |
1c8831c5 | 894 | int selected_frame_p; |
7500260a | 895 | struct gdbarch *gdbarch; |
3567439c | 896 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 897 | |
1c8831c5 | 898 | fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p); |
12368003 | 899 | gdbarch = get_frame_arch (fi); |
c906108c | 900 | |
82de1e5b AC |
901 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
902 | is not a good name. */ | |
12368003 | 903 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 904 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
905 | easily not match that of the internal value returned by |
906 | get_frame_pc(). */ | |
12368003 | 907 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 908 | else |
3e8c568d | 909 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
910 | architectures will often have a hardware register called "pc", |
911 | and that register's value, again, can easily not match | |
912 | get_frame_pc(). */ | |
913 | pc_regname = "pc"; | |
914 | ||
1058bca7 | 915 | find_frame_sal (fi, &sal); |
c906108c | 916 | func = get_frame_function (fi); |
1058bca7 | 917 | /* FIXME: cagney/2002-11-28: Why bother? Won't sal.symtab contain |
033a42c2 | 918 | the same value? */ |
bdd78e62 | 919 | s = find_pc_symtab (get_frame_pc (fi)); |
c906108c SS |
920 | if (func) |
921 | { | |
3567439c | 922 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b JM |
923 | funlang = SYMBOL_LANGUAGE (func); |
924 | if (funlang == language_cplus) | |
925 | { | |
3567439c DJ |
926 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
927 | to display the demangled name that we already have | |
928 | stored in the symbol table, but we stored a version | |
929 | with DMGL_PARAMS turned on, and here we don't want to | |
930 | display parameters. So remove the parameters. */ | |
931 | char *func_only = cp_remove_params (funname); | |
932 | if (func_only) | |
933 | { | |
934 | funname = func_only; | |
935 | make_cleanup (xfree, func_only); | |
936 | } | |
c5aa993b | 937 | } |
c906108c SS |
938 | } |
939 | else | |
940 | { | |
033a42c2 MK |
941 | struct minimal_symbol *msymbol; |
942 | ||
943 | msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c906108c SS |
944 | if (msymbol != NULL) |
945 | { | |
3567439c | 946 | funname = SYMBOL_PRINT_NAME (msymbol); |
c906108c SS |
947 | funlang = SYMBOL_LANGUAGE (msymbol); |
948 | } | |
949 | } | |
950 | calling_frame_info = get_prev_frame (fi); | |
951 | ||
1c8831c5 | 952 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 953 | { |
a3f17187 | 954 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 955 | frame_relative_level (fi)); |
c906108c SS |
956 | } |
957 | else | |
958 | { | |
a3f17187 | 959 | printf_filtered (_("Stack frame at ")); |
c906108c | 960 | } |
ed49a04f | 961 | fputs_filtered (paddress (get_frame_base (fi)), gdb_stdout); |
9c833c82 | 962 | printf_filtered (":\n"); |
82de1e5b | 963 | printf_filtered (" %s = ", pc_regname); |
ed49a04f | 964 | fputs_filtered (paddress (get_frame_pc (fi)), gdb_stdout); |
c906108c SS |
965 | |
966 | wrap_here (" "); | |
967 | if (funname) | |
968 | { | |
969 | printf_filtered (" in "); | |
970 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
971 | DMGL_ANSI | DMGL_PARAMS); | |
972 | } | |
973 | wrap_here (" "); | |
974 | if (sal.symtab) | |
975 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
976 | puts_filtered ("; "); | |
977 | wrap_here (" "); | |
82de1e5b | 978 | printf_filtered ("saved %s ", pc_regname); |
eb2f4a08 | 979 | fputs_filtered (paddress (frame_pc_unwind (fi)), gdb_stdout); |
c906108c SS |
980 | printf_filtered ("\n"); |
981 | ||
55feb689 DJ |
982 | if (calling_frame_info == NULL) |
983 | { | |
984 | enum unwind_stop_reason reason; | |
985 | ||
986 | reason = get_frame_unwind_stop_reason (fi); | |
987 | if (reason != UNWIND_NO_REASON) | |
988 | printf_filtered (_(" Outermost frame: %s\n"), | |
989 | frame_stop_reason_string (reason)); | |
990 | } | |
991 | ||
c906108c SS |
992 | if (calling_frame_info) |
993 | { | |
994 | printf_filtered (" called by frame at "); | |
ed49a04f MD |
995 | fputs_filtered (paddress (get_frame_base (calling_frame_info)), |
996 | gdb_stdout); | |
c906108c | 997 | } |
75e3c1f9 | 998 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
999 | puts_filtered (","); |
1000 | wrap_here (" "); | |
75e3c1f9 | 1001 | if (get_next_frame (fi)) |
c906108c SS |
1002 | { |
1003 | printf_filtered (" caller of frame at "); | |
ed49a04f MD |
1004 | fputs_filtered (paddress (get_frame_base (get_next_frame (fi))), |
1005 | gdb_stdout); | |
c906108c | 1006 | } |
75e3c1f9 | 1007 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1008 | puts_filtered ("\n"); |
55feb689 | 1009 | |
c906108c | 1010 | if (s) |
1058bca7 AC |
1011 | printf_filtered (" source language %s.\n", |
1012 | language_str (s->language)); | |
c906108c | 1013 | |
c906108c SS |
1014 | { |
1015 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1016 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1017 | /* Number of args for this frame, or -1 if unknown. */ |
1018 | int numargs; | |
1019 | ||
1020 | if (arg_list == 0) | |
1021 | printf_filtered (" Arglist at unknown address.\n"); | |
1022 | else | |
1023 | { | |
1024 | printf_filtered (" Arglist at "); | |
ed49a04f | 1025 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1026 | printf_filtered (","); |
1027 | ||
7500260a | 1028 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1029 | { |
1030 | numargs = -1; | |
1031 | puts_filtered (" args: "); | |
1032 | } | |
c906108c | 1033 | else |
983a287a | 1034 | { |
7500260a | 1035 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1036 | gdb_assert (numargs >= 0); |
1037 | if (numargs == 0) | |
1038 | puts_filtered (" no args."); | |
1039 | else if (numargs == 1) | |
1040 | puts_filtered (" 1 arg: "); | |
1041 | else | |
1042 | printf_filtered (" %d args: ", numargs); | |
1043 | } | |
c906108c SS |
1044 | print_frame_args (func, fi, numargs, gdb_stdout); |
1045 | puts_filtered ("\n"); | |
1046 | } | |
1047 | } | |
1048 | { | |
1049 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1050 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1051 | |
1052 | if (arg_list == 0) | |
1053 | printf_filtered (" Locals at unknown address,"); | |
1054 | else | |
1055 | { | |
1056 | printf_filtered (" Locals at "); | |
ed49a04f | 1057 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1058 | printf_filtered (","); |
1059 | } | |
1060 | } | |
1061 | ||
4f460812 AC |
1062 | /* Print as much information as possible on the location of all the |
1063 | registers. */ | |
1064 | { | |
1065 | enum lval_type lval; | |
1066 | int optimized; | |
1067 | CORE_ADDR addr; | |
1068 | int realnum; | |
1069 | int count; | |
1070 | int i; | |
1071 | int need_nl = 1; | |
1072 | ||
1073 | /* The sp is special; what's displayed isn't the save address, but | |
1074 | the value of the previous frame's sp. This is a legacy thing, | |
1075 | at one stage the frame cached the previous frame's SP instead | |
1076 | of its address, hence it was easiest to just display the cached | |
1077 | value. */ | |
7500260a | 1078 | if (gdbarch_sp_regnum (gdbarch) >= 0) |
4f460812 AC |
1079 | { |
1080 | /* Find out the location of the saved stack pointer with out | |
1081 | actually evaluating it. */ | |
7500260a | 1082 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1083 | &optimized, &lval, &addr, |
4f460812 AC |
1084 | &realnum, NULL); |
1085 | if (!optimized && lval == not_lval) | |
c906108c | 1086 | { |
10c42a71 | 1087 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 | 1088 | CORE_ADDR sp; |
7500260a | 1089 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1090 | &optimized, &lval, &addr, |
4f460812 | 1091 | &realnum, value); |
af1342ab AC |
1092 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1093 | stack pointer was packed as an unsigned integer. That | |
1094 | may or may not be valid. */ | |
3e8c568d | 1095 | sp = extract_unsigned_integer (value, |
7500260a UW |
1096 | register_size (gdbarch, |
1097 | gdbarch_sp_regnum (gdbarch))); | |
4f460812 | 1098 | printf_filtered (" Previous frame's sp is "); |
ed49a04f | 1099 | fputs_filtered (paddress (sp), gdb_stdout); |
4f460812 AC |
1100 | printf_filtered ("\n"); |
1101 | need_nl = 0; | |
c906108c | 1102 | } |
4f460812 AC |
1103 | else if (!optimized && lval == lval_memory) |
1104 | { | |
1105 | printf_filtered (" Previous frame's sp at "); | |
ed49a04f | 1106 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1107 | printf_filtered ("\n"); |
1108 | need_nl = 0; | |
1109 | } | |
1110 | else if (!optimized && lval == lval_register) | |
1111 | { | |
1112 | printf_filtered (" Previous frame's sp in %s\n", | |
7500260a | 1113 | gdbarch_register_name (gdbarch, realnum)); |
4f460812 AC |
1114 | need_nl = 0; |
1115 | } | |
1116 | /* else keep quiet. */ | |
1117 | } | |
1118 | ||
1119 | count = 0; | |
7500260a UW |
1120 | numregs = gdbarch_num_regs (gdbarch) |
1121 | + gdbarch_num_pseudo_regs (gdbarch); | |
4f460812 | 1122 | for (i = 0; i < numregs; i++) |
7500260a UW |
1123 | if (i != gdbarch_sp_regnum (gdbarch) |
1124 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) | |
4f460812 AC |
1125 | { |
1126 | /* Find out the location of the saved register without | |
1127 | fetching the corresponding value. */ | |
1128 | frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum, | |
1129 | NULL); | |
1130 | /* For moment, only display registers that were saved on the | |
1131 | stack. */ | |
1132 | if (!optimized && lval == lval_memory) | |
1133 | { | |
1134 | if (count == 0) | |
1135 | puts_filtered (" Saved registers:\n "); | |
1136 | else | |
1137 | puts_filtered (","); | |
1138 | wrap_here (" "); | |
c9f4d572 | 1139 | printf_filtered (" %s at ", |
7500260a | 1140 | gdbarch_register_name (gdbarch, i)); |
ed49a04f | 1141 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1142 | count++; |
1143 | } | |
1144 | } | |
1145 | if (count || need_nl) | |
c906108c | 1146 | puts_filtered ("\n"); |
4f460812 | 1147 | } |
3567439c DJ |
1148 | |
1149 | do_cleanups (back_to); | |
c906108c SS |
1150 | } |
1151 | ||
033a42c2 MK |
1152 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1153 | frames. */ | |
c906108c SS |
1154 | |
1155 | static void | |
fba45db2 | 1156 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1157 | { |
1158 | struct frame_info *fi; | |
52f0bd74 AC |
1159 | int count; |
1160 | int i; | |
1161 | struct frame_info *trailing; | |
1162 | int trailing_level; | |
c906108c SS |
1163 | |
1164 | if (!target_has_stack) | |
8a3fe4f8 | 1165 | error (_("No stack.")); |
c906108c | 1166 | |
033a42c2 MK |
1167 | /* The following code must do two things. First, it must set the |
1168 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1169 | printing. Second, it must set the variable count to the number |
1170 | of frames which we should print, or -1 if all of them. */ | |
1171 | trailing = get_current_frame (); | |
d082b2bb AC |
1172 | |
1173 | /* The target can be in a state where there is no valid frames | |
1174 | (e.g., just connected). */ | |
1175 | if (trailing == NULL) | |
8a3fe4f8 | 1176 | error (_("No stack.")); |
d082b2bb | 1177 | |
c906108c SS |
1178 | trailing_level = 0; |
1179 | if (count_exp) | |
1180 | { | |
bb518678 | 1181 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1182 | if (count < 0) |
1183 | { | |
1184 | struct frame_info *current; | |
1185 | ||
1186 | count = -count; | |
1187 | ||
1188 | current = trailing; | |
1189 | while (current && count--) | |
1190 | { | |
1191 | QUIT; | |
1192 | current = get_prev_frame (current); | |
1193 | } | |
c5aa993b | 1194 | |
033a42c2 MK |
1195 | /* Will stop when CURRENT reaches the top of the stack. |
1196 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1197 | while (current) |
1198 | { | |
1199 | QUIT; | |
1200 | trailing = get_prev_frame (trailing); | |
1201 | current = get_prev_frame (current); | |
1202 | trailing_level++; | |
1203 | } | |
c5aa993b | 1204 | |
c906108c SS |
1205 | count = -1; |
1206 | } | |
1207 | } | |
1208 | else | |
1209 | count = -1; | |
1210 | ||
1211 | if (info_verbose) | |
1212 | { | |
1213 | struct partial_symtab *ps; | |
c5aa993b | 1214 | |
033a42c2 MK |
1215 | /* Read in symbols for all of the frames. Need to do this in a |
1216 | separate pass so that "Reading in symbols for xxx" messages | |
1217 | don't screw up the appearance of the backtrace. Also if | |
1218 | people have strong opinions against reading symbols for | |
c5aa993b | 1219 | backtrace this may have to be an option. */ |
c906108c | 1220 | i = count; |
033a42c2 | 1221 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c SS |
1222 | { |
1223 | QUIT; | |
c4a09524 | 1224 | ps = find_pc_psymtab (get_frame_address_in_block (fi)); |
c906108c | 1225 | if (ps) |
033a42c2 | 1226 | PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */ |
c906108c SS |
1227 | } |
1228 | } | |
1229 | ||
033a42c2 | 1230 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1231 | { |
1232 | QUIT; | |
1233 | ||
1234 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1235 | means further attempts to backtrace would fail (on the other |
1236 | hand, perhaps the code does or could be fixed to make sure | |
1237 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1238 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1239 | if (show_locals) |
c5aa993b | 1240 | print_frame_local_vars (fi, 1, gdb_stdout); |
55feb689 DJ |
1241 | |
1242 | /* Save the last frame to check for error conditions. */ | |
1243 | trailing = fi; | |
c906108c SS |
1244 | } |
1245 | ||
1246 | /* If we've stopped before the end, mention that. */ | |
1247 | if (fi && from_tty) | |
a3f17187 | 1248 | printf_filtered (_("(More stack frames follow...)\n")); |
55feb689 DJ |
1249 | |
1250 | /* If we've run out of frames, and the reason appears to be an error | |
1251 | condition, print it. */ | |
1252 | if (fi == NULL && trailing != NULL) | |
1253 | { | |
1254 | enum unwind_stop_reason reason; | |
1255 | ||
1256 | reason = get_frame_unwind_stop_reason (trailing); | |
1257 | if (reason > UNWIND_FIRST_ERROR) | |
1258 | printf_filtered (_("Backtrace stopped: %s\n"), | |
1259 | frame_stop_reason_string (reason)); | |
1260 | } | |
c906108c SS |
1261 | } |
1262 | ||
d75e3c94 | 1263 | struct backtrace_command_args |
033a42c2 MK |
1264 | { |
1265 | char *count_exp; | |
1266 | int show_locals; | |
1267 | int from_tty; | |
1268 | }; | |
1269 | ||
1270 | /* Stub for catch_errors. */ | |
d75e3c94 | 1271 | |
d75e3c94 JJ |
1272 | static int |
1273 | backtrace_command_stub (void *data) | |
1274 | { | |
033a42c2 | 1275 | struct backtrace_command_args *args = data; |
d75e3c94 JJ |
1276 | backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty); |
1277 | return 0; | |
1278 | } | |
1279 | ||
c906108c | 1280 | static void |
fba45db2 | 1281 | backtrace_command (char *arg, int from_tty) |
c906108c | 1282 | { |
033a42c2 MK |
1283 | struct cleanup *old_chain = NULL; |
1284 | int fulltrace_arg = -1, arglen = 0, argc = 0; | |
d75e3c94 | 1285 | struct backtrace_command_args btargs; |
c906108c | 1286 | |
033a42c2 | 1287 | if (arg) |
c906108c | 1288 | { |
033a42c2 | 1289 | char **argv; |
c906108c SS |
1290 | int i; |
1291 | ||
d1a41061 | 1292 | argv = gdb_buildargv (arg); |
7a292a7a | 1293 | old_chain = make_cleanup_freeargv (argv); |
c906108c | 1294 | argc = 0; |
033a42c2 | 1295 | for (i = 0; argv[i]; i++) |
c5aa993b | 1296 | { |
745b8ca0 | 1297 | unsigned int j; |
c5aa993b | 1298 | |
033a42c2 | 1299 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1300 | argv[i][j] = tolower (argv[i][j]); |
1301 | ||
033a42c2 MK |
1302 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1303 | fulltrace_arg = argc; | |
c5aa993b JM |
1304 | else |
1305 | { | |
033a42c2 | 1306 | arglen += strlen (argv[i]); |
c5aa993b | 1307 | argc++; |
c5aa993b JM |
1308 | } |
1309 | } | |
033a42c2 MK |
1310 | arglen += argc; |
1311 | if (fulltrace_arg >= 0) | |
c5aa993b | 1312 | { |
033a42c2 | 1313 | if (arglen > 0) |
c5aa993b | 1314 | { |
033a42c2 MK |
1315 | arg = xmalloc (arglen + 1); |
1316 | memset (arg, 0, arglen + 1); | |
1317 | for (i = 0; i < (argc + 1); i++) | |
c5aa993b | 1318 | { |
033a42c2 | 1319 | if (i != fulltrace_arg) |
c5aa993b | 1320 | { |
033a42c2 MK |
1321 | strcat (arg, argv[i]); |
1322 | strcat (arg, " "); | |
c5aa993b JM |
1323 | } |
1324 | } | |
1325 | } | |
1326 | else | |
033a42c2 | 1327 | arg = NULL; |
c5aa993b | 1328 | } |
c906108c SS |
1329 | } |
1330 | ||
033a42c2 MK |
1331 | btargs.count_exp = arg; |
1332 | btargs.show_locals = (fulltrace_arg >= 0); | |
d75e3c94 | 1333 | btargs.from_tty = from_tty; |
033a42c2 | 1334 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1335 | |
033a42c2 MK |
1336 | if (fulltrace_arg >= 0 && arglen > 0) |
1337 | xfree (arg); | |
c906108c SS |
1338 | |
1339 | if (old_chain) | |
c5aa993b | 1340 | do_cleanups (old_chain); |
c906108c SS |
1341 | } |
1342 | ||
1343 | static void | |
fba45db2 | 1344 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1345 | { |
d75e3c94 JJ |
1346 | struct backtrace_command_args btargs; |
1347 | btargs.count_exp = arg; | |
1348 | btargs.show_locals = 1; | |
1349 | btargs.from_tty = from_tty; | |
033a42c2 | 1350 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1351 | } |
c906108c | 1352 | \f |
c5aa993b | 1353 | |
033a42c2 | 1354 | /* Print the local variables of a block B active in FRAME on STREAM. |
c906108c SS |
1355 | Return 1 if any variables were printed; 0 otherwise. */ |
1356 | ||
1357 | static int | |
033a42c2 | 1358 | print_block_frame_locals (struct block *b, struct frame_info *frame, |
de4f826b | 1359 | int num_tabs, struct ui_file *stream) |
c906108c | 1360 | { |
de4f826b | 1361 | struct dict_iterator iter; |
de4f826b DC |
1362 | struct symbol *sym; |
1363 | int values_printed = 0; | |
033a42c2 | 1364 | int j; |
c906108c | 1365 | |
de4f826b | 1366 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1367 | { |
c906108c SS |
1368 | switch (SYMBOL_CLASS (sym)) |
1369 | { | |
1370 | case LOC_LOCAL: | |
1371 | case LOC_REGISTER: | |
1372 | case LOC_STATIC: | |
4c2df51b | 1373 | case LOC_COMPUTED: |
2a2d4dc3 AS |
1374 | if (SYMBOL_IS_ARGUMENT (sym)) |
1375 | break; | |
c906108c SS |
1376 | values_printed = 1; |
1377 | for (j = 0; j < num_tabs; j++) | |
c5aa993b | 1378 | fputs_filtered ("\t", stream); |
de5ad195 | 1379 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c | 1380 | fputs_filtered (" = ", stream); |
033a42c2 | 1381 | print_variable_value (sym, frame, stream); |
c906108c SS |
1382 | fprintf_filtered (stream, "\n"); |
1383 | break; | |
1384 | ||
1385 | default: | |
1386 | /* Ignore symbols which are not locals. */ | |
1387 | break; | |
1388 | } | |
1389 | } | |
033a42c2 | 1390 | |
c906108c SS |
1391 | return values_printed; |
1392 | } | |
1393 | ||
1394 | /* Same, but print labels. */ | |
1395 | ||
1396 | static int | |
fba45db2 | 1397 | print_block_frame_labels (struct block *b, int *have_default, |
aa1ee363 | 1398 | struct ui_file *stream) |
c906108c | 1399 | { |
de4f826b | 1400 | struct dict_iterator iter; |
52f0bd74 AC |
1401 | struct symbol *sym; |
1402 | int values_printed = 0; | |
c906108c | 1403 | |
de4f826b | 1404 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1405 | { |
3567439c | 1406 | if (strcmp (SYMBOL_LINKAGE_NAME (sym), "default") == 0) |
c906108c SS |
1407 | { |
1408 | if (*have_default) | |
1409 | continue; | |
1410 | *have_default = 1; | |
1411 | } | |
1412 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1413 | { | |
1414 | struct symtab_and_line sal; | |
79a45b7d | 1415 | struct value_print_options opts; |
c906108c SS |
1416 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); |
1417 | values_printed = 1; | |
de5ad195 | 1418 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
79a45b7d TT |
1419 | get_user_print_options (&opts); |
1420 | if (opts.addressprint) | |
c906108c SS |
1421 | { |
1422 | fprintf_filtered (stream, " "); | |
ed49a04f | 1423 | fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (sym)), stream); |
c906108c SS |
1424 | } |
1425 | fprintf_filtered (stream, " in file %s, line %d\n", | |
1426 | sal.symtab->filename, sal.line); | |
1427 | } | |
1428 | } | |
033a42c2 | 1429 | |
c906108c SS |
1430 | return values_printed; |
1431 | } | |
1432 | ||
033a42c2 MK |
1433 | /* Print on STREAM all the local variables in frame FRAME, including |
1434 | all the blocks active in that frame at its current PC. | |
c906108c | 1435 | |
033a42c2 MK |
1436 | Returns 1 if the job was done, or 0 if nothing was printed because |
1437 | we have no info on the function running in FRAME. */ | |
c906108c SS |
1438 | |
1439 | static void | |
033a42c2 | 1440 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 1441 | struct ui_file *stream) |
c906108c | 1442 | { |
033a42c2 | 1443 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1444 | int values_printed = 0; |
c906108c SS |
1445 | |
1446 | if (block == 0) | |
1447 | { | |
1448 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1449 | return; | |
1450 | } | |
c5aa993b | 1451 | |
033a42c2 | 1452 | while (block) |
c906108c | 1453 | { |
033a42c2 | 1454 | if (print_block_frame_locals (block, frame, num_tabs, stream)) |
c906108c | 1455 | values_printed = 1; |
033a42c2 MK |
1456 | /* After handling the function's top-level block, stop. Don't |
1457 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1458 | if (BLOCK_FUNCTION (block)) |
1459 | break; | |
1460 | block = BLOCK_SUPERBLOCK (block); | |
1461 | } | |
1462 | ||
1463 | if (!values_printed) | |
033a42c2 | 1464 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
1465 | } |
1466 | ||
1467 | /* Same, but print labels. */ | |
1468 | ||
1469 | static void | |
033a42c2 | 1470 | print_frame_label_vars (struct frame_info *frame, int this_level_only, |
aa1ee363 | 1471 | struct ui_file *stream) |
c906108c | 1472 | { |
801e3a5b JB |
1473 | #if 1 |
1474 | fprintf_filtered (stream, "print_frame_label_vars disabled.\n"); | |
1475 | #else | |
52f0bd74 | 1476 | struct blockvector *bl; |
033a42c2 | 1477 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1478 | int values_printed = 0; |
c906108c SS |
1479 | int index, have_default = 0; |
1480 | char *blocks_printed; | |
033a42c2 | 1481 | CORE_ADDR pc = get_frame_pc (frame); |
c906108c SS |
1482 | |
1483 | if (block == 0) | |
1484 | { | |
1485 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1486 | return; | |
1487 | } | |
1488 | ||
1489 | bl = blockvector_for_pc (BLOCK_END (block) - 4, &index); | |
033a42c2 | 1490 | blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
c906108c SS |
1491 | memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
1492 | ||
1493 | while (block != 0) | |
1494 | { | |
1495 | CORE_ADDR end = BLOCK_END (block) - 4; | |
1496 | int last_index; | |
1497 | ||
1498 | if (bl != blockvector_for_pc (end, &index)) | |
8a3fe4f8 | 1499 | error (_("blockvector blotch")); |
c906108c | 1500 | if (BLOCKVECTOR_BLOCK (bl, index) != block) |
8a3fe4f8 | 1501 | error (_("blockvector botch")); |
c906108c SS |
1502 | last_index = BLOCKVECTOR_NBLOCKS (bl); |
1503 | index += 1; | |
1504 | ||
1505 | /* Don't print out blocks that have gone by. */ | |
1506 | while (index < last_index | |
1507 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc) | |
1508 | index++; | |
1509 | ||
1510 | while (index < last_index | |
1511 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end) | |
1512 | { | |
1513 | if (blocks_printed[index] == 0) | |
1514 | { | |
033a42c2 MK |
1515 | if (print_block_frame_labels (BLOCKVECTOR_BLOCK (bl, index), |
1516 | &have_default, stream)) | |
c906108c SS |
1517 | values_printed = 1; |
1518 | blocks_printed[index] = 1; | |
1519 | } | |
1520 | index++; | |
1521 | } | |
1522 | if (have_default) | |
1523 | return; | |
1524 | if (values_printed && this_level_only) | |
1525 | return; | |
1526 | ||
033a42c2 MK |
1527 | /* After handling the function's top-level block, stop. Don't |
1528 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1529 | if (BLOCK_FUNCTION (block)) |
1530 | break; | |
1531 | block = BLOCK_SUPERBLOCK (block); | |
1532 | } | |
1533 | ||
1534 | if (!values_printed && !this_level_only) | |
033a42c2 | 1535 | fprintf_filtered (stream, _("No catches.\n")); |
801e3a5b | 1536 | #endif |
c906108c SS |
1537 | } |
1538 | ||
c906108c | 1539 | void |
fba45db2 | 1540 | locals_info (char *args, int from_tty) |
c906108c | 1541 | { |
033a42c2 | 1542 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1543 | 0, gdb_stdout); |
c906108c SS |
1544 | } |
1545 | ||
1546 | static void | |
fba45db2 | 1547 | catch_info (char *ignore, int from_tty) |
c906108c | 1548 | { |
c5aa993b | 1549 | struct symtab_and_line *sal; |
c906108c | 1550 | |
dfdfb3ca JB |
1551 | /* Assume g++ compiled code; old GDB 4.16 behaviour. */ |
1552 | print_frame_label_vars (get_selected_frame (_("No frame selected.")), | |
1553 | 0, gdb_stdout); | |
c906108c SS |
1554 | } |
1555 | ||
1556 | static void | |
033a42c2 | 1557 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) |
c906108c | 1558 | { |
033a42c2 | 1559 | struct symbol *func = get_frame_function (frame); |
52f0bd74 | 1560 | struct block *b; |
de4f826b | 1561 | struct dict_iterator iter; |
52f0bd74 AC |
1562 | struct symbol *sym, *sym2; |
1563 | int values_printed = 0; | |
c906108c SS |
1564 | |
1565 | if (func == 0) | |
1566 | { | |
033a42c2 | 1567 | fprintf_filtered (stream, _("No symbol table info available.\n")); |
c906108c SS |
1568 | return; |
1569 | } | |
1570 | ||
1571 | b = SYMBOL_BLOCK_VALUE (func); | |
de4f826b | 1572 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1573 | { |
2a2d4dc3 AS |
1574 | /* Don't worry about things which aren't arguments. */ |
1575 | if (SYMBOL_IS_ARGUMENT (sym)) | |
c906108c | 1576 | { |
c906108c | 1577 | values_printed = 1; |
de5ad195 | 1578 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1579 | fputs_filtered (" = ", stream); |
1580 | ||
1581 | /* We have to look up the symbol because arguments can have | |
1582 | two entries (one a parameter, one a local) and the one we | |
1583 | want is the local, which lookup_symbol will find for us. | |
1584 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1585 | small structure and gcc2 when the argument type is float | |
1586 | and it is passed as a double and converted to float by | |
1587 | the prologue (in the latter case the type of the LOC_ARG | |
1588 | symbol is double and the type of the LOC_LOCAL symbol is | |
1589 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
1590 | are not combined in symbol-reading. */ | |
1591 | ||
3567439c | 1592 | sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), |
2570f2b7 | 1593 | b, VAR_DOMAIN, NULL); |
033a42c2 | 1594 | print_variable_value (sym2, frame, stream); |
c906108c | 1595 | fprintf_filtered (stream, "\n"); |
c906108c SS |
1596 | } |
1597 | } | |
033a42c2 | 1598 | |
c906108c | 1599 | if (!values_printed) |
033a42c2 | 1600 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
1601 | } |
1602 | ||
1603 | void | |
fba45db2 | 1604 | args_info (char *ignore, int from_tty) |
c906108c | 1605 | { |
033a42c2 | 1606 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1607 | gdb_stdout); |
c906108c SS |
1608 | } |
1609 | ||
1610 | ||
1611 | static void | |
fba45db2 | 1612 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 1613 | { |
c5aa993b JM |
1614 | args_info (ignore, from_tty); |
1615 | locals_info (ignore, from_tty); | |
c906108c | 1616 | } |
c906108c | 1617 | \f |
c5aa993b | 1618 | |
033a42c2 MK |
1619 | /* Select frame FRAME. Also print the stack frame and show the source |
1620 | if this is the tui version. */ | |
bedfa57b | 1621 | static void |
033a42c2 | 1622 | select_and_print_frame (struct frame_info *frame) |
c906108c | 1623 | { |
033a42c2 MK |
1624 | select_frame (frame); |
1625 | if (frame) | |
1626 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 1627 | } |
c906108c | 1628 | \f |
c906108c | 1629 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
1630 | Can return zero under various legitimate circumstances. |
1631 | ||
1632 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
1633 | code address within the block returned. We use this to decide | |
1634 | which macros are in scope. */ | |
c906108c SS |
1635 | |
1636 | struct block * | |
ae767bfb | 1637 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c SS |
1638 | { |
1639 | if (!target_has_stack) | |
1640 | return 0; | |
1641 | ||
0d6431e2 PA |
1642 | if (is_exited (inferior_ptid)) |
1643 | return 0; | |
1644 | ||
8ea051c5 PA |
1645 | if (is_executing (inferior_ptid)) |
1646 | return 0; | |
1647 | ||
206415a3 | 1648 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
1649 | } |
1650 | ||
1651 | /* Find a frame a certain number of levels away from FRAME. | |
1652 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
1653 | Positive means go to earlier frames (up); negative, the reverse. | |
1654 | The int that contains the number of levels is counted toward | |
1655 | zero as the frames for those levels are found. | |
1656 | If the top or bottom frame is reached, that frame is returned, | |
1657 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
1658 | how much farther the original request asked to go. */ | |
1659 | ||
1660 | struct frame_info * | |
033a42c2 | 1661 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 1662 | { |
033a42c2 MK |
1663 | /* Going up is simple: just call get_prev_frame enough times or |
1664 | until the initial frame is reached. */ | |
c906108c SS |
1665 | while (*level_offset_ptr > 0) |
1666 | { | |
033a42c2 MK |
1667 | struct frame_info *prev = get_prev_frame (frame); |
1668 | if (!prev) | |
c906108c SS |
1669 | break; |
1670 | (*level_offset_ptr)--; | |
1671 | frame = prev; | |
1672 | } | |
033a42c2 | 1673 | |
c906108c | 1674 | /* Going down is just as simple. */ |
033a42c2 | 1675 | while (*level_offset_ptr < 0) |
c906108c | 1676 | { |
033a42c2 MK |
1677 | struct frame_info *next = get_next_frame (frame); |
1678 | if (!next) | |
1679 | break; | |
1680 | (*level_offset_ptr)++; | |
1681 | frame = next; | |
c906108c | 1682 | } |
033a42c2 | 1683 | |
c906108c SS |
1684 | return frame; |
1685 | } | |
1686 | ||
033a42c2 MK |
1687 | /* The "select_frame" command. With no argument this is a NOP. |
1688 | Select the frame at level LEVEL_EXP if it is a valid level. | |
1689 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
1690 | ||
1691 | See parse_frame_specification for more info on proper frame | |
1692 | expressions. */ | |
c906108c | 1693 | |
8b93c638 | 1694 | void |
fba45db2 | 1695 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 1696 | { |
1c8831c5 | 1697 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
1698 | } |
1699 | ||
033a42c2 MK |
1700 | /* The "frame" command. With no argument, print the selected frame |
1701 | briefly. With an argument, behave like select_frame and then print | |
1702 | the selected frame. */ | |
c906108c | 1703 | |
033a42c2 | 1704 | static void |
fba45db2 | 1705 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
1706 | { |
1707 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 1708 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1709 | } |
1710 | ||
033a42c2 | 1711 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 1712 | |
7a292a7a | 1713 | static void |
fba45db2 | 1714 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 1715 | { |
033a42c2 | 1716 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 1717 | } |
c906108c | 1718 | |
033a42c2 MK |
1719 | /* Select the frame up one or COUNT_EXP stack levels from the |
1720 | previously selected frame, and print it briefly. */ | |
c906108c | 1721 | |
c906108c | 1722 | static void |
fba45db2 | 1723 | up_silently_base (char *count_exp) |
c906108c | 1724 | { |
033a42c2 MK |
1725 | struct frame_info *frame; |
1726 | int count = 1; | |
1727 | ||
c906108c | 1728 | if (count_exp) |
bb518678 | 1729 | count = parse_and_eval_long (count_exp); |
c5aa993b | 1730 | |
033a42c2 MK |
1731 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1732 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 1733 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 1734 | select_frame (frame); |
c906108c SS |
1735 | } |
1736 | ||
1737 | static void | |
fba45db2 | 1738 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 1739 | { |
c5aa993b | 1740 | up_silently_base (count_exp); |
c906108c SS |
1741 | } |
1742 | ||
1743 | static void | |
fba45db2 | 1744 | up_command (char *count_exp, int from_tty) |
c906108c SS |
1745 | { |
1746 | up_silently_base (count_exp); | |
b04f3ab4 | 1747 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1748 | } |
1749 | ||
033a42c2 MK |
1750 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
1751 | selected frame, and print it briefly. */ | |
c906108c | 1752 | |
c906108c | 1753 | static void |
fba45db2 | 1754 | down_silently_base (char *count_exp) |
c906108c | 1755 | { |
52f0bd74 | 1756 | struct frame_info *frame; |
033a42c2 | 1757 | int count = -1; |
c906108c | 1758 | if (count_exp) |
bb518678 | 1759 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 1760 | |
033a42c2 MK |
1761 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1762 | if (count != 0 && count_exp == NULL) | |
c906108c | 1763 | { |
033a42c2 MK |
1764 | /* We only do this if COUNT_EXP is not specified. That way |
1765 | "down" means to really go down (and let me know if that is | |
1766 | impossible), but "down 9999" can be used to mean go all the | |
1767 | way down without getting an error. */ | |
c906108c | 1768 | |
033a42c2 | 1769 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
1770 | } |
1771 | ||
0f7d239c | 1772 | select_frame (frame); |
c906108c SS |
1773 | } |
1774 | ||
c906108c | 1775 | static void |
fba45db2 | 1776 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
1777 | { |
1778 | down_silently_base (count_exp); | |
c906108c SS |
1779 | } |
1780 | ||
1781 | static void | |
fba45db2 | 1782 | down_command (char *count_exp, int from_tty) |
c906108c SS |
1783 | { |
1784 | down_silently_base (count_exp); | |
b04f3ab4 | 1785 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1786 | } |
1787 | \f | |
033a42c2 | 1788 | |
8b93c638 | 1789 | void |
fba45db2 | 1790 | return_command (char *retval_exp, int from_tty) |
c906108c | 1791 | { |
5ed92fa8 | 1792 | struct frame_info *thisframe; |
c906108c | 1793 | struct symbol *thisfun; |
3d6d86c6 | 1794 | struct value *return_value = NULL; |
fc70c2a0 | 1795 | const char *query_prefix = ""; |
c906108c | 1796 | |
5ed92fa8 UW |
1797 | thisframe = get_selected_frame ("No selected frame."); |
1798 | thisfun = get_frame_function (thisframe); | |
c906108c | 1799 | |
fc70c2a0 AC |
1800 | /* Compute the return value. If the computation triggers an error, |
1801 | let it bail. If the return type can't be handled, set | |
1802 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
1803 | message. */ | |
c906108c SS |
1804 | if (retval_exp) |
1805 | { | |
1806 | struct type *return_type = NULL; | |
1807 | ||
fc70c2a0 AC |
1808 | /* Compute the return value. Should the computation fail, this |
1809 | call throws an error. */ | |
c906108c SS |
1810 | return_value = parse_and_eval (retval_exp); |
1811 | ||
fc70c2a0 AC |
1812 | /* Cast return value to the return type of the function. Should |
1813 | the cast fail, this call throws an error. */ | |
c906108c SS |
1814 | if (thisfun != NULL) |
1815 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
1816 | if (return_type == NULL) | |
5ed92fa8 | 1817 | return_type = builtin_type (get_frame_arch (thisframe))->builtin_int; |
3e9a183c | 1818 | CHECK_TYPEDEF (return_type); |
c906108c SS |
1819 | return_value = value_cast (return_type, return_value); |
1820 | ||
fc70c2a0 AC |
1821 | /* Make sure the value is fully evaluated. It may live in the |
1822 | stack frame we're about to pop. */ | |
d69fe07e | 1823 | if (value_lazy (return_value)) |
c906108c | 1824 | value_fetch_lazy (return_value); |
c906108c | 1825 | |
667e784f AC |
1826 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
1827 | /* If the return-type is "void", don't try to find the | |
1828 | return-value's location. However, do still evaluate the | |
1829 | return expression so that, even when the expression result | |
1830 | is discarded, side effects such as "return i++" still | |
033a42c2 | 1831 | occur. */ |
667e784f | 1832 | return_value = NULL; |
c055b101 | 1833 | else if (using_struct_return (SYMBOL_TYPE (thisfun), return_type)) |
fc70c2a0 | 1834 | { |
667e784f AC |
1835 | query_prefix = "\ |
1836 | The location at which to store the function's return value is unknown.\n\ | |
1837 | If you continue, the return value that you specified will be ignored.\n"; | |
1838 | return_value = NULL; | |
fc70c2a0 | 1839 | } |
c906108c SS |
1840 | } |
1841 | ||
fc70c2a0 AC |
1842 | /* Does an interactive user really want to do this? Include |
1843 | information, such as how well GDB can handle the return value, in | |
1844 | the query message. */ | |
1845 | if (from_tty) | |
1846 | { | |
1847 | int confirmed; | |
1848 | if (thisfun == NULL) | |
e2e0b3e5 | 1849 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
1850 | query_prefix); |
1851 | else | |
e2e0b3e5 | 1852 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
1853 | SYMBOL_PRINT_NAME (thisfun)); |
1854 | if (!confirmed) | |
8a3fe4f8 | 1855 | error (_("Not confirmed")); |
fc70c2a0 | 1856 | } |
c906108c | 1857 | |
a45ae3ed UW |
1858 | /* Discard the selected frame and all frames inner-to it. */ |
1859 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 1860 | |
a1f5b845 | 1861 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
1862 | if (return_value != NULL) |
1863 | { | |
df407dfe | 1864 | struct type *return_type = value_type (return_value); |
7500260a | 1865 | struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ()); |
c055b101 CV |
1866 | gdb_assert (gdbarch_return_value (gdbarch, SYMBOL_TYPE (thisfun), |
1867 | return_type, NULL, NULL, NULL) | |
750eb019 | 1868 | == RETURN_VALUE_REGISTER_CONVENTION); |
c055b101 | 1869 | gdbarch_return_value (gdbarch, SYMBOL_TYPE (thisfun), return_type, |
594f7785 | 1870 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 1871 | value_contents (return_value) /*write*/); |
fc70c2a0 | 1872 | } |
1a2aab69 | 1873 | |
fc70c2a0 AC |
1874 | /* If we are at the end of a call dummy now, pop the dummy frame |
1875 | too. */ | |
e8bcf01f AC |
1876 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
1877 | frame_pop (get_current_frame ()); | |
1a2aab69 | 1878 | |
c906108c | 1879 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
1880 | if (from_tty) |
1881 | frame_command ("0", 1); | |
1882 | else | |
1883 | select_frame_command ("0", 0); | |
1884 | } | |
1885 | ||
033a42c2 MK |
1886 | /* Sets the scope to input function name, provided that the function |
1887 | is within the current stack frame */ | |
c906108c SS |
1888 | |
1889 | struct function_bounds | |
1890 | { | |
1891 | CORE_ADDR low, high; | |
1892 | }; | |
1893 | ||
1894 | static void | |
fba45db2 | 1895 | func_command (char *arg, int from_tty) |
c906108c | 1896 | { |
033a42c2 | 1897 | struct frame_info *frame; |
c906108c SS |
1898 | int found = 0; |
1899 | struct symtabs_and_lines sals; | |
1900 | int i; | |
1901 | int level = 1; | |
033a42c2 | 1902 | struct function_bounds *func_bounds = NULL; |
c906108c | 1903 | |
033a42c2 | 1904 | if (arg != NULL) |
c906108c SS |
1905 | return; |
1906 | ||
033a42c2 | 1907 | frame = parse_frame_specification ("0"); |
c906108c SS |
1908 | sals = decode_line_spec (arg, 1); |
1909 | func_bounds = (struct function_bounds *) xmalloc ( | |
1910 | sizeof (struct function_bounds) * sals.nelts); | |
1911 | for (i = 0; (i < sals.nelts && !found); i++) | |
1912 | { | |
033a42c2 MK |
1913 | if (sals.sals[i].pc == 0 |
1914 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
1915 | &func_bounds[i].low, | |
1916 | &func_bounds[i].high) == 0) | |
c906108c | 1917 | { |
033a42c2 | 1918 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
1919 | } |
1920 | } | |
1921 | ||
1922 | do | |
1923 | { | |
1924 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
1925 | found = (get_frame_pc (frame) >= func_bounds[i].low |
1926 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
1927 | if (!found) |
1928 | { | |
1929 | level = 1; | |
033a42c2 | 1930 | frame = find_relative_frame (frame, &level); |
c906108c SS |
1931 | } |
1932 | } | |
1933 | while (!found && level == 0); | |
1934 | ||
1935 | if (func_bounds) | |
b8c9b27d | 1936 | xfree (func_bounds); |
c906108c SS |
1937 | |
1938 | if (!found) | |
a3f17187 | 1939 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
206415a3 | 1940 | else if (frame != get_selected_frame (NULL)) |
033a42c2 | 1941 | select_and_print_frame (frame); |
c906108c SS |
1942 | } |
1943 | ||
1944 | /* Gets the language of the current frame. */ | |
1945 | ||
1946 | enum language | |
fba45db2 | 1947 | get_frame_language (void) |
c906108c | 1948 | { |
206415a3 | 1949 | struct frame_info *frame = deprecated_safe_get_selected_frame (); |
c5aa993b | 1950 | |
033a42c2 | 1951 | if (frame) |
c906108c | 1952 | { |
7ae4c3a5 | 1953 | /* We determine the current frame language by looking up its |
033a42c2 MK |
1954 | associated symtab. To retrieve this symtab, we use the frame |
1955 | PC. However we cannot use the frame PC as is, because it | |
1956 | usually points to the instruction following the "call", which | |
1957 | is sometimes the first instruction of another function. So | |
1958 | we rely on get_frame_address_in_block(), it provides us with | |
1959 | a PC that is guaranteed to be inside the frame's code | |
1960 | block. */ | |
1961 | CORE_ADDR pc = get_frame_address_in_block (frame); | |
1962 | struct symtab *s = find_pc_symtab (pc); | |
1963 | ||
c906108c | 1964 | if (s) |
033a42c2 | 1965 | return s->language; |
c906108c | 1966 | } |
c906108c | 1967 | |
033a42c2 | 1968 | return language_unknown; |
c906108c SS |
1969 | } |
1970 | \f | |
033a42c2 MK |
1971 | |
1972 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
1973 | void _initialize_stack (void); | |
1974 | ||
c906108c | 1975 | void |
fba45db2 | 1976 | _initialize_stack (void) |
c906108c | 1977 | { |
c5aa993b | 1978 | #if 0 |
c906108c SS |
1979 | backtrace_limit = 30; |
1980 | #endif | |
1981 | ||
1bedd215 AC |
1982 | add_com ("return", class_stack, return_command, _("\ |
1983 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
1984 | Control remains in the debugger, but when you continue\n\ |
1985 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
1986 | If an argument is given, it is an expression for the value to return.")); |
1987 | ||
1988 | add_com ("up", class_stack, up_command, _("\ | |
1989 | Select and print stack frame that called this one.\n\ | |
1990 | An argument says how many frames up to go.")); | |
1991 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
1992 | Same as the `up' command, but does not print anything.\n\ | |
1993 | This is useful in command scripts.")); | |
1994 | ||
1995 | add_com ("down", class_stack, down_command, _("\ | |
1996 | Select and print stack frame called by this one.\n\ | |
1997 | An argument says how many frames down to go.")); | |
c906108c SS |
1998 | add_com_alias ("do", "down", class_stack, 1); |
1999 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
2000 | add_com ("down-silently", class_support, down_silently_command, _("\ |
2001 | Same as the `down' command, but does not print anything.\n\ | |
2002 | This is useful in command scripts.")); | |
c906108c | 2003 | |
1bedd215 AC |
2004 | add_com ("frame", class_stack, frame_command, _("\ |
2005 | Select and print a stack frame.\n\ | |
c906108c SS |
2006 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ |
2007 | An argument specifies the frame to select.\n\ | |
2008 | It can be a stack frame number or the address of the frame.\n\ | |
2009 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 2010 | a command file or a user-defined command.")); |
c906108c SS |
2011 | |
2012 | add_com_alias ("f", "frame", class_stack, 1); | |
2013 | ||
2014 | if (xdb_commands) | |
2015 | { | |
c5aa993b | 2016 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 2017 | _("Print the current stack frame.\n")); |
c906108c SS |
2018 | add_com_alias ("V", "frame", class_stack, 1); |
2019 | } | |
1bedd215 AC |
2020 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
2021 | Select a stack frame without printing anything.\n\ | |
c906108c | 2022 | An argument specifies the frame to select.\n\ |
1bedd215 | 2023 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 2024 | |
1bedd215 AC |
2025 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2026 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
c906108c | 2027 | With a negative argument, print outermost -COUNT frames.\n\ |
1bedd215 | 2028 | Use of the 'full' qualifier also prints the values of the local variables.\n")); |
c906108c SS |
2029 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2030 | if (xdb_commands) | |
2031 | { | |
2032 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 AC |
2033 | add_com ("T", class_stack, backtrace_full_command, _("\ |
2034 | Print backtrace of all stack frames, or innermost COUNT frames \n\ | |
c906108c SS |
2035 | and the values of the local variables.\n\ |
2036 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2037 | Usage: T <count>\n")); |
c906108c SS |
2038 | } |
2039 | ||
2040 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2041 | add_info ("stack", backtrace_command, | |
1bedd215 | 2042 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2043 | add_info_alias ("s", "stack", 1); |
2044 | add_info ("frame", frame_info, | |
1bedd215 | 2045 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2046 | add_info_alias ("f", "frame", 1); |
2047 | add_info ("locals", locals_info, | |
1bedd215 | 2048 | _("Local variables of current stack frame.")); |
c906108c | 2049 | add_info ("args", args_info, |
1bedd215 | 2050 | _("Argument variables of current stack frame.")); |
c906108c | 2051 | if (xdb_commands) |
c5aa993b | 2052 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2053 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2054 | |
2055 | if (dbx_commands) | |
1bedd215 AC |
2056 | add_com ("func", class_stack, func_command, _("\ |
2057 | Select the stack frame that contains <func>.\n\ | |
2058 | Usage: func <name>\n")); | |
c906108c SS |
2059 | |
2060 | add_info ("catch", catch_info, | |
1bedd215 | 2061 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c | 2062 | |
88408340 JB |
2063 | add_setshow_enum_cmd ("frame-arguments", class_stack, |
2064 | print_frame_arguments_choices, &print_frame_arguments, | |
2065 | _("Set printing of non-scalar frame arguments"), | |
2066 | _("Show printing of non-scalar frame arguments"), | |
2067 | NULL, NULL, NULL, &setprintlist, &showprintlist); | |
2068 | ||
c906108c | 2069 | #if 0 |
1a966eab AC |
2070 | add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\ |
2071 | "Specify maximum number of frames for \"backtrace\" to print by default."), | |
c906108c | 2072 | &setlist); |
1bedd215 AC |
2073 | add_info ("backtrace-limit", backtrace_limit_info, _("\ |
2074 | The maximum number of frames for \"backtrace\" to print by default.")); | |
c906108c SS |
2075 | #endif |
2076 | } |