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" |
c906108c | 46 | |
033a42c2 MK |
47 | #include "gdb_assert.h" |
48 | #include <ctype.h> | |
49 | #include "gdb_string.h" | |
c906108c | 50 | |
9a4105ab | 51 | void (*deprecated_selected_frame_level_changed_hook) (int); |
c906108c | 52 | |
88408340 JB |
53 | /* The possible choices of "set print frame-arguments, and the value |
54 | of this setting. */ | |
55 | ||
56 | static const char *print_frame_arguments_choices[] = | |
57 | {"all", "scalars", "none", NULL}; | |
58 | static const char *print_frame_arguments = "all"; | |
59 | ||
a58dd373 | 60 | /* Prototypes for local functions. */ |
c906108c | 61 | |
d9fcf2fb JM |
62 | static void print_frame_local_vars (struct frame_info *, int, |
63 | struct ui_file *); | |
c906108c | 64 | |
033a42c2 MK |
65 | static void print_frame (struct frame_info *frame, int print_level, |
66 | enum print_what print_what, int print_args, | |
c5394b80 JM |
67 | struct symtab_and_line sal); |
68 | ||
c906108c SS |
69 | /* Zero means do things normally; we are interacting directly with the |
70 | user. One means print the full filename and linenumber when a | |
71 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
72 | parse. Two means print similar annotations, but in many more | |
73 | cases and in a slightly different syntax. */ | |
74 | ||
75 | int annotation_level = 0; | |
c906108c | 76 | \f |
c5aa993b JM |
77 | |
78 | struct print_stack_frame_args | |
033a42c2 MK |
79 | { |
80 | struct frame_info *frame; | |
81 | int print_level; | |
82 | enum print_what print_what; | |
83 | int print_args; | |
84 | }; | |
85 | ||
86 | /* Show or print the frame arguments; stub for catch_errors. */ | |
87 | ||
c906108c | 88 | static int |
fba45db2 | 89 | print_stack_frame_stub (void *args) |
c906108c | 90 | { |
c789492a | 91 | struct print_stack_frame_args *p = args; |
033a42c2 | 92 | int center = (p->print_what == SRC_LINE || p->print_what == SRC_AND_LOC); |
c906108c | 93 | |
033a42c2 MK |
94 | print_frame_info (p->frame, p->print_level, p->print_what, p->print_args); |
95 | set_current_sal_from_frame (p->frame, center); | |
c906108c SS |
96 | return 0; |
97 | } | |
98 | ||
033a42c2 | 99 | /* Show or print a stack frame FRAME briefly. The output is format |
d762c46a AC |
100 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
101 | relative level, function name, argument list, and file name and | |
102 | line number. If the frame's PC is not at the beginning of the | |
103 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
104 | |
105 | void | |
033a42c2 | 106 | print_stack_frame (struct frame_info *frame, int print_level, |
0faf0076 | 107 | enum print_what print_what) |
c906108c SS |
108 | { |
109 | struct print_stack_frame_args args; | |
110 | ||
033a42c2 | 111 | args.frame = frame; |
0faf0076 AC |
112 | args.print_level = print_level; |
113 | args.print_what = print_what; | |
aaf9e9fd DP |
114 | /* For mi, alway print location and address. */ |
115 | args.print_what = ui_out_is_mi_like_p (uiout) ? LOC_AND_ADDRESS : print_what; | |
0faf0076 | 116 | args.print_args = 1; |
c906108c | 117 | |
5c3ce3f7 | 118 | catch_errors (print_stack_frame_stub, &args, "", RETURN_MASK_ERROR); |
7789c6f5 | 119 | } |
c906108c | 120 | |
c5aa993b JM |
121 | struct print_args_args |
122 | { | |
c906108c | 123 | struct symbol *func; |
033a42c2 | 124 | struct frame_info *frame; |
d9fcf2fb | 125 | struct ui_file *stream; |
c906108c SS |
126 | }; |
127 | ||
033a42c2 | 128 | static int print_args_stub (void *args); |
c906108c | 129 | |
033a42c2 MK |
130 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
131 | the offset of the first nameless argument, and NUM is the number of | |
132 | nameless arguments to print. FIRST is nonzero if this is the first | |
133 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
134 | |
135 | static void | |
033a42c2 | 136 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
137 | int first, struct ui_file *stream) |
138 | { | |
139 | int i; | |
140 | CORE_ADDR argsaddr; | |
141 | long arg_value; | |
142 | ||
143 | for (i = 0; i < num; i++) | |
144 | { | |
145 | QUIT; | |
033a42c2 | 146 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
147 | if (!argsaddr) |
148 | return; | |
149 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
150 | if (!first) | |
151 | fprintf_filtered (stream, ", "); | |
152 | fprintf_filtered (stream, "%ld", arg_value); | |
153 | first = 0; | |
154 | start += sizeof (int); | |
155 | } | |
156 | } | |
157 | ||
88408340 JB |
158 | /* Return non-zero if the debugger should print the value of the provided |
159 | symbol parameter (SYM). */ | |
160 | ||
161 | static int | |
162 | print_this_frame_argument_p (struct symbol *sym) | |
163 | { | |
164 | struct type *type; | |
165 | ||
166 | /* If the user asked to print no argument at all, then obviously | |
167 | do not print this argument. */ | |
168 | ||
169 | if (strcmp (print_frame_arguments, "none") == 0) | |
170 | return 0; | |
171 | ||
172 | /* If the user asked to print all arguments, then we should print | |
173 | that one. */ | |
174 | ||
175 | if (strcmp (print_frame_arguments, "all") == 0) | |
176 | return 1; | |
177 | ||
178 | /* The user asked to print only the scalar arguments, so do not | |
179 | print the non-scalar ones. */ | |
180 | ||
181 | type = CHECK_TYPEDEF (SYMBOL_TYPE (sym)); | |
0366cf3f JB |
182 | while (TYPE_CODE (type) == TYPE_CODE_REF) |
183 | type = CHECK_TYPEDEF (TYPE_TARGET_TYPE (type)); | |
88408340 JB |
184 | switch (TYPE_CODE (type)) |
185 | { | |
186 | case TYPE_CODE_ARRAY: | |
187 | case TYPE_CODE_STRUCT: | |
188 | case TYPE_CODE_UNION: | |
189 | case TYPE_CODE_SET: | |
190 | case TYPE_CODE_STRING: | |
191 | case TYPE_CODE_BITSTRING: | |
192 | return 0; | |
193 | default: | |
194 | return 1; | |
195 | } | |
196 | } | |
197 | ||
033a42c2 MK |
198 | /* Print the arguments of frame FRAME on STREAM, given the function |
199 | FUNC running in that frame (as a symbol), where NUM is the number | |
200 | of arguments according to the stack frame (or -1 if the number of | |
201 | arguments is unknown). */ | |
8d3b0994 | 202 | |
033a42c2 MK |
203 | /* Note that currently the "number of argumentss according to the |
204 | stack frame" is only known on VAX where i refers to the "number of | |
205 | ints of argumentss according to the stack frame". */ | |
8d3b0994 AC |
206 | |
207 | static void | |
033a42c2 MK |
208 | print_frame_args (struct symbol *func, struct frame_info *frame, |
209 | int num, struct ui_file *stream) | |
8d3b0994 | 210 | { |
8d3b0994 | 211 | int first = 1; |
8d3b0994 | 212 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
213 | at the highest offset, or -1 if we haven't come to a stack |
214 | argument yet. */ | |
8d3b0994 | 215 | long highest_offset = -1; |
8d3b0994 AC |
216 | /* Number of ints of arguments that we have printed so far. */ |
217 | int args_printed = 0; | |
218 | struct cleanup *old_chain, *list_chain; | |
219 | struct ui_stream *stb; | |
220 | ||
221 | stb = ui_out_stream_new (uiout); | |
222 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
223 | ||
224 | if (func) | |
225 | { | |
033a42c2 MK |
226 | struct block *b = SYMBOL_BLOCK_VALUE (func); |
227 | struct dict_iterator iter; | |
228 | struct symbol *sym; | |
229 | struct value *val; | |
8d3b0994 | 230 | |
de4f826b | 231 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 AC |
232 | { |
233 | QUIT; | |
234 | ||
235 | /* Keep track of the highest stack argument offset seen, and | |
236 | skip over any kinds of symbols we don't care about. */ | |
237 | ||
2a2d4dc3 AS |
238 | if (!SYMBOL_IS_ARGUMENT (sym)) |
239 | continue; | |
240 | ||
8d3b0994 AC |
241 | switch (SYMBOL_CLASS (sym)) |
242 | { | |
243 | case LOC_ARG: | |
244 | case LOC_REF_ARG: | |
245 | { | |
246 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 247 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
248 | |
249 | /* Compute address of next argument by adding the size of | |
250 | this argument and rounding to an int boundary. */ | |
251 | current_offset = | |
252 | ((current_offset + arg_size + sizeof (int) - 1) | |
253 | & ~(sizeof (int) - 1)); | |
254 | ||
033a42c2 MK |
255 | /* If this is the highest offset seen yet, set |
256 | highest_offset. */ | |
8d3b0994 AC |
257 | if (highest_offset == -1 |
258 | || (current_offset > highest_offset)) | |
259 | highest_offset = current_offset; | |
260 | ||
033a42c2 MK |
261 | /* Add the number of ints we're about to print to |
262 | args_printed. */ | |
8d3b0994 AC |
263 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
264 | } | |
265 | ||
033a42c2 MK |
266 | /* We care about types of symbols, but don't need to |
267 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 268 | case LOC_REGISTER: |
8d3b0994 | 269 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
270 | case LOC_COMPUTED: |
271 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 272 | default: |
2a2d4dc3 | 273 | break; |
8d3b0994 AC |
274 | } |
275 | ||
276 | /* We have to look up the symbol because arguments can have | |
277 | two entries (one a parameter, one a local) and the one we | |
278 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 279 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
280 | small structure and gcc2 when the argument type is float |
281 | and it is passed as a double and converted to float by | |
282 | the prologue (in the latter case the type of the LOC_ARG | |
283 | symbol is double and the type of the LOC_LOCAL symbol is | |
284 | float). */ | |
033a42c2 MK |
285 | /* But if the parameter name is null, don't try it. Null |
286 | parameter names occur on the RS/6000, for traceback | |
287 | tables. FIXME, should we even print them? */ | |
8d3b0994 AC |
288 | |
289 | if (*DEPRECATED_SYMBOL_NAME (sym)) | |
290 | { | |
291 | struct symbol *nsym; | |
033a42c2 | 292 | nsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
2570f2b7 | 293 | b, VAR_DOMAIN, NULL); |
55765a25 | 294 | gdb_assert (nsym != NULL); |
2a2d4dc3 AS |
295 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER |
296 | && !SYMBOL_IS_ARGUMENT (nsym)) | |
8d3b0994 | 297 | { |
033a42c2 MK |
298 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
299 | that it was passed on the stack and loaded into a | |
300 | register, or passed in a register and stored in a | |
301 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
302 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
303 | |
304 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
305 | |
306 | (1) Because find_saved_registers may be slow for | |
307 | remote debugging. | |
308 | ||
309 | (2) Because registers are often re-used and stack | |
310 | slots rarely (never?) are. Therefore using | |
311 | the stack slot is much less likely to print | |
312 | garbage. | |
8d3b0994 AC |
313 | |
314 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
315 | |
316 | (1) So that the backtrace prints the same value | |
317 | as "print foo". I see no compelling reason | |
318 | why this needs to be the case; having the | |
319 | backtrace print the value which was passed | |
320 | in, and "print foo" print the value as | |
321 | modified within the called function, makes | |
322 | perfect sense to me. | |
323 | ||
324 | Additional note: It might be nice if "info args" | |
325 | displayed both values. | |
326 | ||
327 | One more note: There is a case with SPARC | |
328 | structure passing where we need to use the | |
329 | LOC_REGISTER, but this is dealt with by creating | |
330 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
331 | |
332 | /* Leave sym (the LOC_ARG) alone. */ | |
333 | ; | |
334 | } | |
335 | else | |
336 | sym = nsym; | |
337 | } | |
338 | ||
339 | /* Print the current arg. */ | |
340 | if (!first) | |
341 | ui_out_text (uiout, ", "); | |
342 | ui_out_wrap_hint (uiout, " "); | |
343 | ||
344 | annotate_arg_begin (); | |
345 | ||
346 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
347 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym), | |
033a42c2 MK |
348 | SYMBOL_LANGUAGE (sym), |
349 | DMGL_PARAMS | DMGL_ANSI); | |
8d3b0994 AC |
350 | ui_out_field_stream (uiout, "name", stb); |
351 | annotate_arg_name_end (); | |
352 | ui_out_text (uiout, "="); | |
353 | ||
88408340 JB |
354 | if (print_this_frame_argument_p (sym)) |
355 | { | |
356 | /* Avoid value_print because it will deref ref parameters. | |
357 | We just want to print their addresses. Print ??? for | |
358 | args whose address we do not know. We pass 2 as | |
359 | "recurse" to val_print because our standard indentation | |
360 | here is 4 spaces, and val_print indents 2 for each | |
361 | recurse. */ | |
362 | val = read_var_value (sym, frame); | |
363 | ||
364 | annotate_arg_value (val == NULL ? NULL : value_type (val)); | |
365 | ||
366 | if (val) | |
367 | { | |
d8ca156b JB |
368 | const struct language_defn *language; |
369 | ||
370 | /* Use the appropriate language to display our symbol, | |
371 | unless the user forced the language to a specific | |
372 | language. */ | |
373 | if (language_mode == language_mode_auto) | |
374 | language = language_def (SYMBOL_LANGUAGE (sym)); | |
375 | else | |
376 | language = current_language; | |
377 | ||
88408340 | 378 | common_val_print (val, stb->stream, 0, 0, 2, |
d8ca156b | 379 | Val_no_prettyprint, language); |
88408340 JB |
380 | ui_out_field_stream (uiout, "value", stb); |
381 | } | |
382 | else | |
383 | ui_out_text (uiout, "???"); | |
384 | } | |
385 | else | |
386 | ui_out_text (uiout, "..."); | |
8d3b0994 | 387 | |
8d3b0994 AC |
388 | |
389 | /* Invoke ui_out_tuple_end. */ | |
390 | do_cleanups (list_chain); | |
391 | ||
392 | annotate_arg_end (); | |
393 | ||
394 | first = 0; | |
395 | } | |
396 | } | |
397 | ||
398 | /* Don't print nameless args in situations where we don't know | |
399 | enough about the stack to find them. */ | |
400 | if (num != -1) | |
401 | { | |
402 | long start; | |
403 | ||
404 | if (highest_offset == -1) | |
7500260a | 405 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
406 | else |
407 | start = highest_offset; | |
408 | ||
033a42c2 | 409 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
410 | first, stream); |
411 | } | |
033a42c2 | 412 | |
8d3b0994 AC |
413 | do_cleanups (old_chain); |
414 | } | |
415 | ||
033a42c2 | 416 | /* Stub for catch_errors. */ |
c906108c SS |
417 | |
418 | static int | |
4efb68b1 | 419 | print_args_stub (void *args) |
c906108c | 420 | { |
033a42c2 | 421 | struct print_args_args *p = args; |
12368003 | 422 | struct gdbarch *gdbarch = get_frame_arch (p->frame); |
c906108c | 423 | int numargs; |
c906108c | 424 | |
12368003 | 425 | if (gdbarch_frame_num_args_p (gdbarch)) |
983a287a | 426 | { |
12368003 | 427 | numargs = gdbarch_frame_num_args (gdbarch, p->frame); |
983a287a AC |
428 | gdb_assert (numargs >= 0); |
429 | } | |
430 | else | |
431 | numargs = -1; | |
033a42c2 | 432 | print_frame_args (p->func, p->frame, numargs, p->stream); |
c906108c SS |
433 | return 0; |
434 | } | |
435 | ||
033a42c2 MK |
436 | /* Set the current source and line to the location given by frame |
437 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
438 | line is in the center of the next 'list'. */ | |
c789492a | 439 | |
7abfe014 | 440 | void |
033a42c2 | 441 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
442 | { |
443 | struct symtab_and_line sal; | |
444 | ||
033a42c2 | 445 | find_frame_sal (frame, &sal); |
c789492a FL |
446 | if (sal.symtab) |
447 | { | |
448 | if (center) | |
449 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
450 | set_current_source_symtab_and_line (&sal); | |
451 | } | |
452 | } | |
453 | ||
033a42c2 MK |
454 | /* Print information about frame FRAME. The output is format according |
455 | to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of | |
456 | PRINT_WHAT is: | |
457 | ||
458 | SRC_LINE: Print only source line. | |
459 | LOCATION: Print only location. | |
460 | LOC_AND_SRC: Print location and source line. | |
461 | ||
462 | Used in "where" output, and to emit breakpoint or step | |
463 | messages. */ | |
c906108c | 464 | |
7789c6f5 | 465 | void |
033a42c2 | 466 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 467 | enum print_what print_what, int print_args) |
c906108c SS |
468 | { |
469 | struct symtab_and_line sal; | |
c5394b80 JM |
470 | int source_print; |
471 | int location_print; | |
c906108c | 472 | |
033a42c2 MK |
473 | if (get_frame_type (frame) == DUMMY_FRAME |
474 | || get_frame_type (frame) == SIGTRAMP_FRAME) | |
c906108c | 475 | { |
075559bc AC |
476 | struct cleanup *uiout_cleanup |
477 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 478 | |
033a42c2 MK |
479 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
480 | get_frame_pc (frame)); | |
6a3fe0a4 | 481 | |
c906108c | 482 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 483 | to list for this frame. */ |
0faf0076 | 484 | if (print_level) |
52c6a6ac JJ |
485 | { |
486 | ui_out_text (uiout, "#"); | |
0faf0076 | 487 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 488 | frame_relative_level (frame)); |
52c6a6ac | 489 | } |
075559bc | 490 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 491 | { |
075559bc | 492 | annotate_frame_address (); |
033a42c2 | 493 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
075559bc | 494 | annotate_frame_address_end (); |
52c6a6ac | 495 | } |
6a3fe0a4 | 496 | |
033a42c2 | 497 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
498 | { |
499 | annotate_function_call (); | |
500 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
501 | } | |
033a42c2 | 502 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
503 | { |
504 | annotate_signal_handler_caller (); | |
505 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
506 | } | |
507 | ui_out_text (uiout, "\n"); | |
c906108c | 508 | annotate_frame_end (); |
075559bc AC |
509 | |
510 | do_cleanups (uiout_cleanup); | |
c906108c SS |
511 | return; |
512 | } | |
513 | ||
033a42c2 MK |
514 | /* If FRAME is not the innermost frame, that normally means that |
515 | FRAME->pc points to *after* the call instruction, and we want to | |
516 | get the line containing the call, never the next line. But if | |
517 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
518 | next frame was not entered as the result of a call, and we want | |
519 | to get the line containing FRAME->pc. */ | |
520 | find_frame_sal (frame, &sal); | |
c906108c | 521 | |
0faf0076 AC |
522 | location_print = (print_what == LOCATION |
523 | || print_what == LOC_AND_ADDRESS | |
524 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
525 | |
526 | if (location_print || !sal.symtab) | |
033a42c2 | 527 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 528 | |
0faf0076 | 529 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 530 | |
c5394b80 JM |
531 | if (source_print && sal.symtab) |
532 | { | |
533 | int done = 0; | |
0faf0076 | 534 | int mid_statement = ((print_what == SRC_LINE) |
033a42c2 | 535 | && (get_frame_pc (frame) != sal.pc)); |
c5394b80 JM |
536 | |
537 | if (annotation_level) | |
538 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 539 | get_frame_pc (frame)); |
c5394b80 JM |
540 | if (!done) |
541 | { | |
9a4105ab | 542 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
543 | deprecated_print_frame_info_listing_hook (sal.symtab, |
544 | sal.line, | |
545 | sal.line + 1, 0); | |
ba4bbdcb | 546 | else |
c5394b80 | 547 | { |
ba4bbdcb KS |
548 | /* We used to do this earlier, but that is clearly |
549 | wrong. This function is used by many different | |
550 | parts of gdb, including normal_stop in infrun.c, | |
551 | which uses this to print out the current PC | |
552 | when we stepi/nexti into the middle of a source | |
553 | line. Only the command line really wants this | |
554 | behavior. Other UIs probably would like the | |
cbd3c883 | 555 | ability to decide for themselves if it is desired. */ |
ba4bbdcb KS |
556 | if (addressprint && mid_statement) |
557 | { | |
033a42c2 | 558 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
ba4bbdcb | 559 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
560 | } |
561 | ||
562 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 563 | } |
c5394b80 | 564 | } |
c5394b80 JM |
565 | } |
566 | ||
0faf0076 | 567 | if (print_what != LOCATION) |
033a42c2 | 568 | set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line); |
c5394b80 JM |
569 | |
570 | annotate_frame_end (); | |
571 | ||
572 | gdb_flush (gdb_stdout); | |
573 | } | |
574 | ||
575 | static void | |
033a42c2 MK |
576 | print_frame (struct frame_info *frame, int print_level, |
577 | enum print_what print_what, int print_args, | |
c5394b80 JM |
578 | struct symtab_and_line sal) |
579 | { | |
580 | struct symbol *func; | |
033a42c2 | 581 | char *funname = NULL; |
c5394b80 | 582 | enum language funlang = language_unknown; |
8b93c638 | 583 | struct ui_stream *stb; |
033a42c2 | 584 | struct cleanup *old_chain, *list_chain; |
8b93c638 JM |
585 | |
586 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 587 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
c5394b80 | 588 | |
033a42c2 | 589 | func = find_pc_function (get_frame_address_in_block (frame)); |
c906108c SS |
590 | if (func) |
591 | { | |
592 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
593 | function (when we are in the first function in a file which |
594 | is compiled without debugging symbols, the previous function | |
595 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
596 | that is supposed to tell us where the file with debugging |
597 | symbols ends has been truncated by ar because it is longer | |
598 | than 15 characters). This also occurs if the user uses asm() | |
599 | to create a function but not stabs for it (in a file compiled | |
600 | with -g). | |
c5aa993b JM |
601 | |
602 | So look in the minimal symbol tables as well, and if it comes | |
603 | up with a larger address for the function use that instead. | |
033a42c2 MK |
604 | I don't think this can ever cause any problems; there |
605 | shouldn't be any minimal symbols in the middle of a function; | |
606 | if this is ever changed many parts of GDB will need to be | |
607 | changed (and we'll create a find_pc_minimal_function or some | |
608 | such). */ | |
609 | ||
610 | struct minimal_symbol *msymbol = | |
611 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 612 | |
c906108c | 613 | if (msymbol != NULL |
c5aa993b | 614 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
615 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
616 | { | |
c906108c SS |
617 | /* We also don't know anything about the function besides |
618 | its address and name. */ | |
619 | func = 0; | |
22abf04a | 620 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
621 | funlang = SYMBOL_LANGUAGE (msymbol); |
622 | } | |
623 | else | |
624 | { | |
22abf04a | 625 | funname = DEPRECATED_SYMBOL_NAME (func); |
c906108c | 626 | funlang = SYMBOL_LANGUAGE (func); |
c5aa993b JM |
627 | if (funlang == language_cplus) |
628 | { | |
033a42c2 MK |
629 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
630 | to display the demangled name that we already have | |
631 | stored in the symbol table, but we stored a version | |
632 | with DMGL_PARAMS turned on, and here we don't want to | |
633 | display parameters. So call the demangler again, with | |
634 | DMGL_ANSI only. | |
635 | ||
636 | Yes, printf_symbol_filtered() will again try to | |
637 | demangle the name on the fly, but the issue is that | |
638 | if cplus_demangle() fails here, it will fail there | |
639 | too. So we want to catch the failure (where DEMANGLED | |
640 | is NULL below) here, while we still have our hands on | |
641 | the function symbol.) */ | |
642 | char *demangled = cplus_demangle (funname, DMGL_ANSI); | |
c5aa993b | 643 | if (demangled == NULL) |
c5394b80 | 644 | /* If the demangler fails, try the demangled name from |
033a42c2 MK |
645 | the symbol table. That'll have parameters, but |
646 | that's preferable to displaying a mangled name. */ | |
de5ad195 | 647 | funname = SYMBOL_PRINT_NAME (func); |
f91162e1 MS |
648 | else |
649 | xfree (demangled); | |
c5aa993b | 650 | } |
c906108c SS |
651 | } |
652 | } | |
653 | else | |
654 | { | |
033a42c2 MK |
655 | struct minimal_symbol *msymbol = |
656 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
657 | ||
c906108c SS |
658 | if (msymbol != NULL) |
659 | { | |
22abf04a | 660 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
661 | funlang = SYMBOL_LANGUAGE (msymbol); |
662 | } | |
663 | } | |
664 | ||
033a42c2 MK |
665 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
666 | get_frame_pc (frame)); | |
c5394b80 | 667 | |
666547aa | 668 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
c5394b80 | 669 | |
0faf0076 | 670 | if (print_level) |
8b93c638 | 671 | { |
8b93c638 | 672 | ui_out_text (uiout, "#"); |
0faf0076 | 673 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 674 | frame_relative_level (frame)); |
8b93c638 | 675 | } |
c5394b80 | 676 | if (addressprint) |
033a42c2 | 677 | if (get_frame_pc (frame) != sal.pc || !sal.symtab |
0faf0076 | 678 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
679 | { |
680 | annotate_frame_address (); | |
033a42c2 | 681 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
8b93c638 JM |
682 | annotate_frame_address_end (); |
683 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
684 | } |
685 | annotate_frame_function_name (); | |
033a42c2 MK |
686 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
687 | funlang, DMGL_ANSI); | |
8b93c638 JM |
688 | ui_out_field_stream (uiout, "func", stb); |
689 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
690 | annotate_frame_args (); |
691 | ||
8b93c638 | 692 | ui_out_text (uiout, " ("); |
0faf0076 | 693 | if (print_args) |
c906108c | 694 | { |
c5394b80 | 695 | struct print_args_args args; |
d493eb33 | 696 | struct cleanup *args_list_chain; |
033a42c2 | 697 | args.frame = frame; |
c5394b80 JM |
698 | args.func = func; |
699 | args.stream = gdb_stdout; | |
68c81b54 | 700 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
5c3ce3f7 | 701 | catch_errors (print_args_stub, &args, "", RETURN_MASK_ERROR); |
033a42c2 MK |
702 | /* FIXME: ARGS must be a list. If one argument is a string it |
703 | will have " that will not be properly escaped. */ | |
666547aa | 704 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 705 | do_cleanups (args_list_chain); |
c5394b80 JM |
706 | QUIT; |
707 | } | |
8b93c638 | 708 | ui_out_text (uiout, ")"); |
c5394b80 JM |
709 | if (sal.symtab && sal.symtab->filename) |
710 | { | |
711 | annotate_frame_source_begin (); | |
8b93c638 JM |
712 | ui_out_wrap_hint (uiout, " "); |
713 | ui_out_text (uiout, " at "); | |
714 | annotate_frame_source_file (); | |
715 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
716 | if (ui_out_is_mi_like_p (uiout)) |
717 | { | |
718 | const char *fullname = symtab_to_fullname (sal.symtab); | |
719 | if (fullname != NULL) | |
720 | ui_out_field_string (uiout, "fullname", fullname); | |
721 | } | |
8b93c638 JM |
722 | annotate_frame_source_file_end (); |
723 | ui_out_text (uiout, ":"); | |
724 | annotate_frame_source_line (); | |
725 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
726 | annotate_frame_source_end (); |
727 | } | |
c906108c | 728 | |
c5394b80 | 729 | if (!funname || (!sal.symtab || !sal.symtab->filename)) |
c906108c | 730 | { |
a77053c2 | 731 | #ifdef PC_SOLIB |
033a42c2 | 732 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 733 | #else |
033a42c2 | 734 | char *lib = solib_address (get_frame_pc (frame)); |
a77053c2 | 735 | #endif |
c5394b80 | 736 | if (lib) |
c906108c | 737 | { |
c5394b80 | 738 | annotate_frame_where (); |
8b93c638 JM |
739 | ui_out_wrap_hint (uiout, " "); |
740 | ui_out_text (uiout, " from "); | |
741 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 742 | } |
c906108c | 743 | } |
e514a9d6 | 744 | |
666547aa | 745 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 746 | do_cleanups (list_chain); |
8b93c638 JM |
747 | ui_out_text (uiout, "\n"); |
748 | do_cleanups (old_chain); | |
c906108c SS |
749 | } |
750 | \f | |
c5aa993b | 751 | |
033a42c2 MK |
752 | /* Read a frame specification in whatever the appropriate format is |
753 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
754 | specification is in any way invalid (so this function never returns | |
755 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
756 | the default selected frame was used. */ | |
c906108c | 757 | |
1c8831c5 AC |
758 | static struct frame_info * |
759 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
760 | int *selected_frame_p) | |
c906108c | 761 | { |
1c8831c5 AC |
762 | int numargs; |
763 | struct value *args[4]; | |
764 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 765 | |
1c8831c5 AC |
766 | if (frame_exp == NULL) |
767 | numargs = 0; | |
768 | else | |
c906108c | 769 | { |
1c8831c5 | 770 | char *addr_string; |
c906108c SS |
771 | struct cleanup *tmp_cleanup; |
772 | ||
1c8831c5 AC |
773 | numargs = 0; |
774 | while (1) | |
c906108c | 775 | { |
1c8831c5 AC |
776 | char *addr_string; |
777 | struct cleanup *cleanup; | |
778 | const char *p; | |
779 | ||
780 | /* Skip leading white space, bail of EOL. */ | |
781 | while (isspace (*frame_exp)) | |
782 | frame_exp++; | |
783 | if (!*frame_exp) | |
784 | break; | |
c906108c | 785 | |
1c8831c5 AC |
786 | /* Parse the argument, extract it, save it. */ |
787 | for (p = frame_exp; | |
788 | *p && !isspace (*p); | |
789 | p++); | |
790 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 791 | frame_exp = p; |
1c8831c5 AC |
792 | cleanup = make_cleanup (xfree, addr_string); |
793 | ||
794 | /* NOTE: Parse and evaluate expression, but do not use | |
795 | functions such as parse_and_eval_long or | |
796 | parse_and_eval_address to also extract the value. | |
797 | Instead value_as_long and value_as_address are used. | |
798 | This avoids problems with expressions that contain | |
799 | side-effects. */ | |
800 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 801 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
802 | args[numargs++] = parse_and_eval (addr_string); |
803 | ||
804 | do_cleanups (cleanup); | |
c906108c SS |
805 | } |
806 | } | |
807 | ||
1c8831c5 AC |
808 | /* If no args, default to the selected frame. */ |
809 | if (numargs == 0) | |
c906108c | 810 | { |
1c8831c5 AC |
811 | if (selected_frame_p != NULL) |
812 | (*selected_frame_p) = 1; | |
813 | return get_selected_frame (message); | |
814 | } | |
c906108c | 815 | |
1c8831c5 AC |
816 | /* None of the remaining use the selected frame. */ |
817 | if (selected_frame_p != NULL) | |
98f276a0 | 818 | (*selected_frame_p) = 0; |
c906108c | 819 | |
1c8831c5 AC |
820 | /* Assume the single arg[0] is an integer, and try using that to |
821 | select a frame relative to current. */ | |
822 | if (numargs == 1) | |
823 | { | |
824 | struct frame_info *fid; | |
825 | int level = value_as_long (args[0]); | |
826 | fid = find_relative_frame (get_current_frame (), &level); | |
827 | if (level == 0) | |
828 | /* find_relative_frame was successful */ | |
829 | return fid; | |
830 | } | |
c906108c | 831 | |
1c8831c5 AC |
832 | /* Convert each value into a corresponding address. */ |
833 | { | |
834 | int i; | |
835 | for (i = 0; i < numargs; i++) | |
836 | addrs[i] = value_as_address (args[0]); | |
837 | } | |
c5aa993b | 838 | |
1c8831c5 AC |
839 | /* Assume that the single arg[0] is an address, use that to identify |
840 | a frame with a matching ID. Should this also accept stack/pc or | |
841 | stack/pc/special. */ | |
842 | if (numargs == 1) | |
843 | { | |
844 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
845 | struct frame_info *fid; | |
846 | ||
1c8831c5 AC |
847 | /* If (s)he specifies the frame with an address, he deserves |
848 | what (s)he gets. Still, give the highest one that matches. | |
849 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
850 | know). */ | |
851 | for (fid = get_current_frame (); | |
852 | fid != NULL; | |
853 | fid = get_prev_frame (fid)) | |
854 | { | |
855 | if (frame_id_eq (id, get_frame_id (fid))) | |
856 | { | |
857 | while (frame_id_eq (id, frame_unwind_id (fid))) | |
858 | fid = get_prev_frame (fid); | |
859 | return fid; | |
860 | } | |
861 | } | |
c906108c SS |
862 | } |
863 | ||
1c8831c5 AC |
864 | /* We couldn't identify the frame as an existing frame, but |
865 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
866 | if (numargs == 1) |
867 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
868 | else if (numargs == 2) |
869 | return create_new_frame (addrs[0], addrs[1]); | |
870 | else | |
8a3fe4f8 | 871 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
872 | } |
873 | ||
9c833c82 | 874 | static struct frame_info * |
1c8831c5 AC |
875 | parse_frame_specification (char *frame_exp) |
876 | { | |
877 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
878 | } |
879 | ||
033a42c2 MK |
880 | /* Print verbosely the selected frame or the frame at address |
881 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
882 | |
883 | static void | |
fba45db2 | 884 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
885 | { |
886 | struct frame_info *fi; | |
887 | struct symtab_and_line sal; | |
888 | struct symbol *func; | |
889 | struct symtab *s; | |
890 | struct frame_info *calling_frame_info; | |
891 | int i, count, numregs; | |
892 | char *funname = 0; | |
893 | enum language funlang = language_unknown; | |
82de1e5b | 894 | const char *pc_regname; |
1c8831c5 | 895 | int selected_frame_p; |
7500260a | 896 | struct gdbarch *gdbarch; |
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 | { | |
033a42c2 MK |
922 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, to |
923 | display the demangled name that we already have stored in the | |
924 | symbol table, but we stored a version with DMGL_PARAMS turned | |
925 | on, and here we don't want to display parameters. So call the | |
926 | demangler again, with DMGL_ANSI only. | |
927 | ||
928 | Yes, printf_symbol_filtered() will again try to demangle the | |
929 | name on the fly, but the issue is that if cplus_demangle() | |
930 | fails here, it will fail there too. So we want to catch the | |
931 | failure (where DEMANGLED is NULL below) here, while we still | |
932 | have our hands on the function symbol.) */ | |
22abf04a | 933 | funname = DEPRECATED_SYMBOL_NAME (func); |
c5aa993b JM |
934 | funlang = SYMBOL_LANGUAGE (func); |
935 | if (funlang == language_cplus) | |
936 | { | |
033a42c2 MK |
937 | char *demangled = cplus_demangle (funname, DMGL_ANSI); |
938 | /* If the demangler fails, try the demangled name from the | |
939 | symbol table. That'll have parameters, but that's | |
940 | preferable to displaying a mangled name. */ | |
c5aa993b | 941 | if (demangled == NULL) |
de5ad195 | 942 | funname = SYMBOL_PRINT_NAME (func); |
f91162e1 MS |
943 | else |
944 | xfree (demangled); | |
c5aa993b | 945 | } |
c906108c SS |
946 | } |
947 | else | |
948 | { | |
033a42c2 MK |
949 | struct minimal_symbol *msymbol; |
950 | ||
951 | msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c906108c SS |
952 | if (msymbol != NULL) |
953 | { | |
22abf04a | 954 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
955 | funlang = SYMBOL_LANGUAGE (msymbol); |
956 | } | |
957 | } | |
958 | calling_frame_info = get_prev_frame (fi); | |
959 | ||
1c8831c5 | 960 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 961 | { |
a3f17187 | 962 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 963 | frame_relative_level (fi)); |
c906108c SS |
964 | } |
965 | else | |
966 | { | |
a3f17187 | 967 | printf_filtered (_("Stack frame at ")); |
c906108c | 968 | } |
ed49a04f | 969 | fputs_filtered (paddress (get_frame_base (fi)), gdb_stdout); |
9c833c82 | 970 | printf_filtered (":\n"); |
82de1e5b | 971 | printf_filtered (" %s = ", pc_regname); |
ed49a04f | 972 | fputs_filtered (paddress (get_frame_pc (fi)), gdb_stdout); |
c906108c SS |
973 | |
974 | wrap_here (" "); | |
975 | if (funname) | |
976 | { | |
977 | printf_filtered (" in "); | |
978 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
979 | DMGL_ANSI | DMGL_PARAMS); | |
980 | } | |
981 | wrap_here (" "); | |
982 | if (sal.symtab) | |
983 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
984 | puts_filtered ("; "); | |
985 | wrap_here (" "); | |
82de1e5b | 986 | printf_filtered ("saved %s ", pc_regname); |
ed49a04f | 987 | fputs_filtered (paddress (frame_pc_unwind (fi)), gdb_stdout); |
c906108c SS |
988 | printf_filtered ("\n"); |
989 | ||
55feb689 DJ |
990 | if (calling_frame_info == NULL) |
991 | { | |
992 | enum unwind_stop_reason reason; | |
993 | ||
994 | reason = get_frame_unwind_stop_reason (fi); | |
995 | if (reason != UNWIND_NO_REASON) | |
996 | printf_filtered (_(" Outermost frame: %s\n"), | |
997 | frame_stop_reason_string (reason)); | |
998 | } | |
999 | ||
c906108c SS |
1000 | if (calling_frame_info) |
1001 | { | |
1002 | printf_filtered (" called by frame at "); | |
ed49a04f MD |
1003 | fputs_filtered (paddress (get_frame_base (calling_frame_info)), |
1004 | gdb_stdout); | |
c906108c | 1005 | } |
75e3c1f9 | 1006 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
1007 | puts_filtered (","); |
1008 | wrap_here (" "); | |
75e3c1f9 | 1009 | if (get_next_frame (fi)) |
c906108c SS |
1010 | { |
1011 | printf_filtered (" caller of frame at "); | |
ed49a04f MD |
1012 | fputs_filtered (paddress (get_frame_base (get_next_frame (fi))), |
1013 | gdb_stdout); | |
c906108c | 1014 | } |
75e3c1f9 | 1015 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1016 | puts_filtered ("\n"); |
55feb689 | 1017 | |
c906108c | 1018 | if (s) |
1058bca7 AC |
1019 | printf_filtered (" source language %s.\n", |
1020 | language_str (s->language)); | |
c906108c | 1021 | |
c906108c SS |
1022 | { |
1023 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1024 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1025 | /* Number of args for this frame, or -1 if unknown. */ |
1026 | int numargs; | |
1027 | ||
1028 | if (arg_list == 0) | |
1029 | printf_filtered (" Arglist at unknown address.\n"); | |
1030 | else | |
1031 | { | |
1032 | printf_filtered (" Arglist at "); | |
ed49a04f | 1033 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1034 | printf_filtered (","); |
1035 | ||
7500260a | 1036 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1037 | { |
1038 | numargs = -1; | |
1039 | puts_filtered (" args: "); | |
1040 | } | |
c906108c | 1041 | else |
983a287a | 1042 | { |
7500260a | 1043 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1044 | gdb_assert (numargs >= 0); |
1045 | if (numargs == 0) | |
1046 | puts_filtered (" no args."); | |
1047 | else if (numargs == 1) | |
1048 | puts_filtered (" 1 arg: "); | |
1049 | else | |
1050 | printf_filtered (" %d args: ", numargs); | |
1051 | } | |
c906108c SS |
1052 | print_frame_args (func, fi, numargs, gdb_stdout); |
1053 | puts_filtered ("\n"); | |
1054 | } | |
1055 | } | |
1056 | { | |
1057 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1058 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1059 | |
1060 | if (arg_list == 0) | |
1061 | printf_filtered (" Locals at unknown address,"); | |
1062 | else | |
1063 | { | |
1064 | printf_filtered (" Locals at "); | |
ed49a04f | 1065 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1066 | printf_filtered (","); |
1067 | } | |
1068 | } | |
1069 | ||
4f460812 AC |
1070 | /* Print as much information as possible on the location of all the |
1071 | registers. */ | |
1072 | { | |
1073 | enum lval_type lval; | |
1074 | int optimized; | |
1075 | CORE_ADDR addr; | |
1076 | int realnum; | |
1077 | int count; | |
1078 | int i; | |
1079 | int need_nl = 1; | |
1080 | ||
1081 | /* The sp is special; what's displayed isn't the save address, but | |
1082 | the value of the previous frame's sp. This is a legacy thing, | |
1083 | at one stage the frame cached the previous frame's SP instead | |
1084 | of its address, hence it was easiest to just display the cached | |
1085 | value. */ | |
7500260a | 1086 | if (gdbarch_sp_regnum (gdbarch) >= 0) |
4f460812 AC |
1087 | { |
1088 | /* Find out the location of the saved stack pointer with out | |
1089 | actually evaluating it. */ | |
7500260a | 1090 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1091 | &optimized, &lval, &addr, |
4f460812 AC |
1092 | &realnum, NULL); |
1093 | if (!optimized && lval == not_lval) | |
c906108c | 1094 | { |
10c42a71 | 1095 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 | 1096 | CORE_ADDR sp; |
7500260a | 1097 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1098 | &optimized, &lval, &addr, |
4f460812 | 1099 | &realnum, value); |
af1342ab AC |
1100 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1101 | stack pointer was packed as an unsigned integer. That | |
1102 | may or may not be valid. */ | |
3e8c568d | 1103 | sp = extract_unsigned_integer (value, |
7500260a UW |
1104 | register_size (gdbarch, |
1105 | gdbarch_sp_regnum (gdbarch))); | |
4f460812 | 1106 | printf_filtered (" Previous frame's sp is "); |
ed49a04f | 1107 | fputs_filtered (paddress (sp), gdb_stdout); |
4f460812 AC |
1108 | printf_filtered ("\n"); |
1109 | need_nl = 0; | |
c906108c | 1110 | } |
4f460812 AC |
1111 | else if (!optimized && lval == lval_memory) |
1112 | { | |
1113 | printf_filtered (" Previous frame's sp at "); | |
ed49a04f | 1114 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1115 | printf_filtered ("\n"); |
1116 | need_nl = 0; | |
1117 | } | |
1118 | else if (!optimized && lval == lval_register) | |
1119 | { | |
1120 | printf_filtered (" Previous frame's sp in %s\n", | |
7500260a | 1121 | gdbarch_register_name (gdbarch, realnum)); |
4f460812 AC |
1122 | need_nl = 0; |
1123 | } | |
1124 | /* else keep quiet. */ | |
1125 | } | |
1126 | ||
1127 | count = 0; | |
7500260a UW |
1128 | numregs = gdbarch_num_regs (gdbarch) |
1129 | + gdbarch_num_pseudo_regs (gdbarch); | |
4f460812 | 1130 | for (i = 0; i < numregs; i++) |
7500260a UW |
1131 | if (i != gdbarch_sp_regnum (gdbarch) |
1132 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) | |
4f460812 AC |
1133 | { |
1134 | /* Find out the location of the saved register without | |
1135 | fetching the corresponding value. */ | |
1136 | frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum, | |
1137 | NULL); | |
1138 | /* For moment, only display registers that were saved on the | |
1139 | stack. */ | |
1140 | if (!optimized && lval == lval_memory) | |
1141 | { | |
1142 | if (count == 0) | |
1143 | puts_filtered (" Saved registers:\n "); | |
1144 | else | |
1145 | puts_filtered (","); | |
1146 | wrap_here (" "); | |
c9f4d572 | 1147 | printf_filtered (" %s at ", |
7500260a | 1148 | gdbarch_register_name (gdbarch, i)); |
ed49a04f | 1149 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1150 | count++; |
1151 | } | |
1152 | } | |
1153 | if (count || need_nl) | |
c906108c | 1154 | puts_filtered ("\n"); |
4f460812 | 1155 | } |
c906108c SS |
1156 | } |
1157 | ||
033a42c2 MK |
1158 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1159 | frames. */ | |
c906108c SS |
1160 | |
1161 | static void | |
fba45db2 | 1162 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1163 | { |
1164 | struct frame_info *fi; | |
52f0bd74 AC |
1165 | int count; |
1166 | int i; | |
1167 | struct frame_info *trailing; | |
1168 | int trailing_level; | |
c906108c SS |
1169 | |
1170 | if (!target_has_stack) | |
8a3fe4f8 | 1171 | error (_("No stack.")); |
c906108c | 1172 | |
033a42c2 MK |
1173 | /* The following code must do two things. First, it must set the |
1174 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1175 | printing. Second, it must set the variable count to the number |
1176 | of frames which we should print, or -1 if all of them. */ | |
1177 | trailing = get_current_frame (); | |
d082b2bb AC |
1178 | |
1179 | /* The target can be in a state where there is no valid frames | |
1180 | (e.g., just connected). */ | |
1181 | if (trailing == NULL) | |
8a3fe4f8 | 1182 | error (_("No stack.")); |
d082b2bb | 1183 | |
c906108c SS |
1184 | trailing_level = 0; |
1185 | if (count_exp) | |
1186 | { | |
bb518678 | 1187 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1188 | if (count < 0) |
1189 | { | |
1190 | struct frame_info *current; | |
1191 | ||
1192 | count = -count; | |
1193 | ||
1194 | current = trailing; | |
1195 | while (current && count--) | |
1196 | { | |
1197 | QUIT; | |
1198 | current = get_prev_frame (current); | |
1199 | } | |
c5aa993b | 1200 | |
033a42c2 MK |
1201 | /* Will stop when CURRENT reaches the top of the stack. |
1202 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1203 | while (current) |
1204 | { | |
1205 | QUIT; | |
1206 | trailing = get_prev_frame (trailing); | |
1207 | current = get_prev_frame (current); | |
1208 | trailing_level++; | |
1209 | } | |
c5aa993b | 1210 | |
c906108c SS |
1211 | count = -1; |
1212 | } | |
1213 | } | |
1214 | else | |
1215 | count = -1; | |
1216 | ||
1217 | if (info_verbose) | |
1218 | { | |
1219 | struct partial_symtab *ps; | |
c5aa993b | 1220 | |
033a42c2 MK |
1221 | /* Read in symbols for all of the frames. Need to do this in a |
1222 | separate pass so that "Reading in symbols for xxx" messages | |
1223 | don't screw up the appearance of the backtrace. Also if | |
1224 | people have strong opinions against reading symbols for | |
c5aa993b | 1225 | backtrace this may have to be an option. */ |
c906108c | 1226 | i = count; |
033a42c2 | 1227 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c SS |
1228 | { |
1229 | QUIT; | |
c4a09524 | 1230 | ps = find_pc_psymtab (get_frame_address_in_block (fi)); |
c906108c | 1231 | if (ps) |
033a42c2 | 1232 | PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */ |
c906108c SS |
1233 | } |
1234 | } | |
1235 | ||
033a42c2 | 1236 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1237 | { |
1238 | QUIT; | |
1239 | ||
1240 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1241 | means further attempts to backtrace would fail (on the other |
1242 | hand, perhaps the code does or could be fixed to make sure | |
1243 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1244 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1245 | if (show_locals) |
c5aa993b | 1246 | print_frame_local_vars (fi, 1, gdb_stdout); |
55feb689 DJ |
1247 | |
1248 | /* Save the last frame to check for error conditions. */ | |
1249 | trailing = fi; | |
c906108c SS |
1250 | } |
1251 | ||
1252 | /* If we've stopped before the end, mention that. */ | |
1253 | if (fi && from_tty) | |
a3f17187 | 1254 | printf_filtered (_("(More stack frames follow...)\n")); |
55feb689 DJ |
1255 | |
1256 | /* If we've run out of frames, and the reason appears to be an error | |
1257 | condition, print it. */ | |
1258 | if (fi == NULL && trailing != NULL) | |
1259 | { | |
1260 | enum unwind_stop_reason reason; | |
1261 | ||
1262 | reason = get_frame_unwind_stop_reason (trailing); | |
1263 | if (reason > UNWIND_FIRST_ERROR) | |
1264 | printf_filtered (_("Backtrace stopped: %s\n"), | |
1265 | frame_stop_reason_string (reason)); | |
1266 | } | |
c906108c SS |
1267 | } |
1268 | ||
d75e3c94 | 1269 | struct backtrace_command_args |
033a42c2 MK |
1270 | { |
1271 | char *count_exp; | |
1272 | int show_locals; | |
1273 | int from_tty; | |
1274 | }; | |
1275 | ||
1276 | /* Stub for catch_errors. */ | |
d75e3c94 | 1277 | |
d75e3c94 JJ |
1278 | static int |
1279 | backtrace_command_stub (void *data) | |
1280 | { | |
033a42c2 | 1281 | struct backtrace_command_args *args = data; |
d75e3c94 JJ |
1282 | backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty); |
1283 | return 0; | |
1284 | } | |
1285 | ||
c906108c | 1286 | static void |
fba45db2 | 1287 | backtrace_command (char *arg, int from_tty) |
c906108c | 1288 | { |
033a42c2 MK |
1289 | struct cleanup *old_chain = NULL; |
1290 | int fulltrace_arg = -1, arglen = 0, argc = 0; | |
d75e3c94 | 1291 | struct backtrace_command_args btargs; |
c906108c | 1292 | |
033a42c2 | 1293 | if (arg) |
c906108c | 1294 | { |
033a42c2 | 1295 | char **argv; |
c906108c SS |
1296 | int i; |
1297 | ||
c5aa993b | 1298 | argv = buildargv (arg); |
7a292a7a | 1299 | old_chain = make_cleanup_freeargv (argv); |
c906108c | 1300 | argc = 0; |
033a42c2 | 1301 | for (i = 0; argv[i]; i++) |
c5aa993b | 1302 | { |
745b8ca0 | 1303 | unsigned int j; |
c5aa993b | 1304 | |
033a42c2 | 1305 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1306 | argv[i][j] = tolower (argv[i][j]); |
1307 | ||
033a42c2 MK |
1308 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1309 | fulltrace_arg = argc; | |
c5aa993b JM |
1310 | else |
1311 | { | |
033a42c2 | 1312 | arglen += strlen (argv[i]); |
c5aa993b | 1313 | argc++; |
c5aa993b JM |
1314 | } |
1315 | } | |
033a42c2 MK |
1316 | arglen += argc; |
1317 | if (fulltrace_arg >= 0) | |
c5aa993b | 1318 | { |
033a42c2 | 1319 | if (arglen > 0) |
c5aa993b | 1320 | { |
033a42c2 MK |
1321 | arg = xmalloc (arglen + 1); |
1322 | memset (arg, 0, arglen + 1); | |
1323 | for (i = 0; i < (argc + 1); i++) | |
c5aa993b | 1324 | { |
033a42c2 | 1325 | if (i != fulltrace_arg) |
c5aa993b | 1326 | { |
033a42c2 MK |
1327 | strcat (arg, argv[i]); |
1328 | strcat (arg, " "); | |
c5aa993b JM |
1329 | } |
1330 | } | |
1331 | } | |
1332 | else | |
033a42c2 | 1333 | arg = NULL; |
c5aa993b | 1334 | } |
c906108c SS |
1335 | } |
1336 | ||
033a42c2 MK |
1337 | btargs.count_exp = arg; |
1338 | btargs.show_locals = (fulltrace_arg >= 0); | |
d75e3c94 | 1339 | btargs.from_tty = from_tty; |
033a42c2 | 1340 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1341 | |
033a42c2 MK |
1342 | if (fulltrace_arg >= 0 && arglen > 0) |
1343 | xfree (arg); | |
c906108c SS |
1344 | |
1345 | if (old_chain) | |
c5aa993b | 1346 | do_cleanups (old_chain); |
c906108c SS |
1347 | } |
1348 | ||
1349 | static void | |
fba45db2 | 1350 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1351 | { |
d75e3c94 JJ |
1352 | struct backtrace_command_args btargs; |
1353 | btargs.count_exp = arg; | |
1354 | btargs.show_locals = 1; | |
1355 | btargs.from_tty = from_tty; | |
033a42c2 | 1356 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1357 | } |
c906108c | 1358 | \f |
c5aa993b | 1359 | |
033a42c2 | 1360 | /* Print the local variables of a block B active in FRAME on STREAM. |
c906108c SS |
1361 | Return 1 if any variables were printed; 0 otherwise. */ |
1362 | ||
1363 | static int | |
033a42c2 | 1364 | print_block_frame_locals (struct block *b, struct frame_info *frame, |
de4f826b | 1365 | int num_tabs, struct ui_file *stream) |
c906108c | 1366 | { |
de4f826b | 1367 | struct dict_iterator iter; |
de4f826b DC |
1368 | struct symbol *sym; |
1369 | int values_printed = 0; | |
033a42c2 | 1370 | int j; |
c906108c | 1371 | |
de4f826b | 1372 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1373 | { |
c906108c SS |
1374 | switch (SYMBOL_CLASS (sym)) |
1375 | { | |
1376 | case LOC_LOCAL: | |
1377 | case LOC_REGISTER: | |
1378 | case LOC_STATIC: | |
4c2df51b | 1379 | case LOC_COMPUTED: |
2a2d4dc3 AS |
1380 | if (SYMBOL_IS_ARGUMENT (sym)) |
1381 | break; | |
c906108c SS |
1382 | values_printed = 1; |
1383 | for (j = 0; j < num_tabs; j++) | |
c5aa993b | 1384 | fputs_filtered ("\t", stream); |
de5ad195 | 1385 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c | 1386 | fputs_filtered (" = ", stream); |
033a42c2 | 1387 | print_variable_value (sym, frame, stream); |
c906108c SS |
1388 | fprintf_filtered (stream, "\n"); |
1389 | break; | |
1390 | ||
1391 | default: | |
1392 | /* Ignore symbols which are not locals. */ | |
1393 | break; | |
1394 | } | |
1395 | } | |
033a42c2 | 1396 | |
c906108c SS |
1397 | return values_printed; |
1398 | } | |
1399 | ||
1400 | /* Same, but print labels. */ | |
1401 | ||
1402 | static int | |
fba45db2 | 1403 | print_block_frame_labels (struct block *b, int *have_default, |
aa1ee363 | 1404 | struct ui_file *stream) |
c906108c | 1405 | { |
de4f826b | 1406 | struct dict_iterator iter; |
52f0bd74 AC |
1407 | struct symbol *sym; |
1408 | int values_printed = 0; | |
c906108c | 1409 | |
de4f826b | 1410 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1411 | { |
acd8056e | 1412 | if (strcmp (DEPRECATED_SYMBOL_NAME (sym), "default") == 0) |
c906108c SS |
1413 | { |
1414 | if (*have_default) | |
1415 | continue; | |
1416 | *have_default = 1; | |
1417 | } | |
1418 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1419 | { | |
1420 | struct symtab_and_line sal; | |
1421 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); | |
1422 | values_printed = 1; | |
de5ad195 | 1423 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1424 | if (addressprint) |
1425 | { | |
1426 | fprintf_filtered (stream, " "); | |
ed49a04f | 1427 | fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (sym)), stream); |
c906108c SS |
1428 | } |
1429 | fprintf_filtered (stream, " in file %s, line %d\n", | |
1430 | sal.symtab->filename, sal.line); | |
1431 | } | |
1432 | } | |
033a42c2 | 1433 | |
c906108c SS |
1434 | return values_printed; |
1435 | } | |
1436 | ||
033a42c2 MK |
1437 | /* Print on STREAM all the local variables in frame FRAME, including |
1438 | all the blocks active in that frame at its current PC. | |
c906108c | 1439 | |
033a42c2 MK |
1440 | Returns 1 if the job was done, or 0 if nothing was printed because |
1441 | we have no info on the function running in FRAME. */ | |
c906108c SS |
1442 | |
1443 | static void | |
033a42c2 | 1444 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 1445 | struct ui_file *stream) |
c906108c | 1446 | { |
033a42c2 | 1447 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1448 | int values_printed = 0; |
c906108c SS |
1449 | |
1450 | if (block == 0) | |
1451 | { | |
1452 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1453 | return; | |
1454 | } | |
c5aa993b | 1455 | |
033a42c2 | 1456 | while (block) |
c906108c | 1457 | { |
033a42c2 | 1458 | if (print_block_frame_locals (block, frame, num_tabs, stream)) |
c906108c | 1459 | values_printed = 1; |
033a42c2 MK |
1460 | /* After handling the function's top-level block, stop. Don't |
1461 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1462 | if (BLOCK_FUNCTION (block)) |
1463 | break; | |
1464 | block = BLOCK_SUPERBLOCK (block); | |
1465 | } | |
1466 | ||
1467 | if (!values_printed) | |
033a42c2 | 1468 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
1469 | } |
1470 | ||
1471 | /* Same, but print labels. */ | |
1472 | ||
1473 | static void | |
033a42c2 | 1474 | print_frame_label_vars (struct frame_info *frame, int this_level_only, |
aa1ee363 | 1475 | struct ui_file *stream) |
c906108c | 1476 | { |
801e3a5b JB |
1477 | #if 1 |
1478 | fprintf_filtered (stream, "print_frame_label_vars disabled.\n"); | |
1479 | #else | |
52f0bd74 | 1480 | struct blockvector *bl; |
033a42c2 | 1481 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1482 | int values_printed = 0; |
c906108c SS |
1483 | int index, have_default = 0; |
1484 | char *blocks_printed; | |
033a42c2 | 1485 | CORE_ADDR pc = get_frame_pc (frame); |
c906108c SS |
1486 | |
1487 | if (block == 0) | |
1488 | { | |
1489 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1490 | return; | |
1491 | } | |
1492 | ||
1493 | bl = blockvector_for_pc (BLOCK_END (block) - 4, &index); | |
033a42c2 | 1494 | blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
c906108c SS |
1495 | memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
1496 | ||
1497 | while (block != 0) | |
1498 | { | |
1499 | CORE_ADDR end = BLOCK_END (block) - 4; | |
1500 | int last_index; | |
1501 | ||
1502 | if (bl != blockvector_for_pc (end, &index)) | |
8a3fe4f8 | 1503 | error (_("blockvector blotch")); |
c906108c | 1504 | if (BLOCKVECTOR_BLOCK (bl, index) != block) |
8a3fe4f8 | 1505 | error (_("blockvector botch")); |
c906108c SS |
1506 | last_index = BLOCKVECTOR_NBLOCKS (bl); |
1507 | index += 1; | |
1508 | ||
1509 | /* Don't print out blocks that have gone by. */ | |
1510 | while (index < last_index | |
1511 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc) | |
1512 | index++; | |
1513 | ||
1514 | while (index < last_index | |
1515 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end) | |
1516 | { | |
1517 | if (blocks_printed[index] == 0) | |
1518 | { | |
033a42c2 MK |
1519 | if (print_block_frame_labels (BLOCKVECTOR_BLOCK (bl, index), |
1520 | &have_default, stream)) | |
c906108c SS |
1521 | values_printed = 1; |
1522 | blocks_printed[index] = 1; | |
1523 | } | |
1524 | index++; | |
1525 | } | |
1526 | if (have_default) | |
1527 | return; | |
1528 | if (values_printed && this_level_only) | |
1529 | return; | |
1530 | ||
033a42c2 MK |
1531 | /* After handling the function's top-level block, stop. Don't |
1532 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1533 | if (BLOCK_FUNCTION (block)) |
1534 | break; | |
1535 | block = BLOCK_SUPERBLOCK (block); | |
1536 | } | |
1537 | ||
1538 | if (!values_printed && !this_level_only) | |
033a42c2 | 1539 | fprintf_filtered (stream, _("No catches.\n")); |
801e3a5b | 1540 | #endif |
c906108c SS |
1541 | } |
1542 | ||
c906108c | 1543 | void |
fba45db2 | 1544 | locals_info (char *args, int from_tty) |
c906108c | 1545 | { |
033a42c2 | 1546 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1547 | 0, gdb_stdout); |
c906108c SS |
1548 | } |
1549 | ||
1550 | static void | |
fba45db2 | 1551 | catch_info (char *ignore, int from_tty) |
c906108c | 1552 | { |
c5aa993b | 1553 | struct symtab_and_line *sal; |
c906108c | 1554 | |
dfdfb3ca JB |
1555 | /* Assume g++ compiled code; old GDB 4.16 behaviour. */ |
1556 | print_frame_label_vars (get_selected_frame (_("No frame selected.")), | |
1557 | 0, gdb_stdout); | |
c906108c SS |
1558 | } |
1559 | ||
1560 | static void | |
033a42c2 | 1561 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) |
c906108c | 1562 | { |
033a42c2 | 1563 | struct symbol *func = get_frame_function (frame); |
52f0bd74 | 1564 | struct block *b; |
de4f826b | 1565 | struct dict_iterator iter; |
52f0bd74 AC |
1566 | struct symbol *sym, *sym2; |
1567 | int values_printed = 0; | |
c906108c SS |
1568 | |
1569 | if (func == 0) | |
1570 | { | |
033a42c2 | 1571 | fprintf_filtered (stream, _("No symbol table info available.\n")); |
c906108c SS |
1572 | return; |
1573 | } | |
1574 | ||
1575 | b = SYMBOL_BLOCK_VALUE (func); | |
de4f826b | 1576 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1577 | { |
2a2d4dc3 AS |
1578 | /* Don't worry about things which aren't arguments. */ |
1579 | if (SYMBOL_IS_ARGUMENT (sym)) | |
c906108c | 1580 | { |
c906108c | 1581 | values_printed = 1; |
de5ad195 | 1582 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1583 | fputs_filtered (" = ", stream); |
1584 | ||
1585 | /* We have to look up the symbol because arguments can have | |
1586 | two entries (one a parameter, one a local) and the one we | |
1587 | want is the local, which lookup_symbol will find for us. | |
1588 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1589 | small structure and gcc2 when the argument type is float | |
1590 | and it is passed as a double and converted to float by | |
1591 | the prologue (in the latter case the type of the LOC_ARG | |
1592 | symbol is double and the type of the LOC_LOCAL symbol is | |
1593 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
1594 | are not combined in symbol-reading. */ | |
1595 | ||
22abf04a | 1596 | sym2 = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
2570f2b7 | 1597 | b, VAR_DOMAIN, NULL); |
033a42c2 | 1598 | print_variable_value (sym2, frame, stream); |
c906108c | 1599 | fprintf_filtered (stream, "\n"); |
c906108c SS |
1600 | } |
1601 | } | |
033a42c2 | 1602 | |
c906108c | 1603 | if (!values_printed) |
033a42c2 | 1604 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
1605 | } |
1606 | ||
1607 | void | |
fba45db2 | 1608 | args_info (char *ignore, int from_tty) |
c906108c | 1609 | { |
033a42c2 | 1610 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1611 | gdb_stdout); |
c906108c SS |
1612 | } |
1613 | ||
1614 | ||
1615 | static void | |
fba45db2 | 1616 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 1617 | { |
c5aa993b JM |
1618 | args_info (ignore, from_tty); |
1619 | locals_info (ignore, from_tty); | |
c906108c | 1620 | } |
c906108c | 1621 | \f |
c5aa993b | 1622 | |
033a42c2 MK |
1623 | /* Select frame FRAME. Also print the stack frame and show the source |
1624 | if this is the tui version. */ | |
bedfa57b | 1625 | static void |
033a42c2 | 1626 | select_and_print_frame (struct frame_info *frame) |
c906108c | 1627 | { |
033a42c2 MK |
1628 | select_frame (frame); |
1629 | if (frame) | |
1630 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 1631 | } |
c906108c | 1632 | \f |
c906108c | 1633 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
1634 | Can return zero under various legitimate circumstances. |
1635 | ||
1636 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
1637 | code address within the block returned. We use this to decide | |
1638 | which macros are in scope. */ | |
c906108c SS |
1639 | |
1640 | struct block * | |
ae767bfb | 1641 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c SS |
1642 | { |
1643 | if (!target_has_stack) | |
1644 | return 0; | |
1645 | ||
206415a3 | 1646 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
1647 | } |
1648 | ||
1649 | /* Find a frame a certain number of levels away from FRAME. | |
1650 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
1651 | Positive means go to earlier frames (up); negative, the reverse. | |
1652 | The int that contains the number of levels is counted toward | |
1653 | zero as the frames for those levels are found. | |
1654 | If the top or bottom frame is reached, that frame is returned, | |
1655 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
1656 | how much farther the original request asked to go. */ | |
1657 | ||
1658 | struct frame_info * | |
033a42c2 | 1659 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 1660 | { |
033a42c2 MK |
1661 | /* Going up is simple: just call get_prev_frame enough times or |
1662 | until the initial frame is reached. */ | |
c906108c SS |
1663 | while (*level_offset_ptr > 0) |
1664 | { | |
033a42c2 MK |
1665 | struct frame_info *prev = get_prev_frame (frame); |
1666 | if (!prev) | |
c906108c SS |
1667 | break; |
1668 | (*level_offset_ptr)--; | |
1669 | frame = prev; | |
1670 | } | |
033a42c2 | 1671 | |
c906108c | 1672 | /* Going down is just as simple. */ |
033a42c2 | 1673 | while (*level_offset_ptr < 0) |
c906108c | 1674 | { |
033a42c2 MK |
1675 | struct frame_info *next = get_next_frame (frame); |
1676 | if (!next) | |
1677 | break; | |
1678 | (*level_offset_ptr)++; | |
1679 | frame = next; | |
c906108c | 1680 | } |
033a42c2 | 1681 | |
c906108c SS |
1682 | return frame; |
1683 | } | |
1684 | ||
033a42c2 MK |
1685 | /* The "select_frame" command. With no argument this is a NOP. |
1686 | Select the frame at level LEVEL_EXP if it is a valid level. | |
1687 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
1688 | ||
1689 | See parse_frame_specification for more info on proper frame | |
1690 | expressions. */ | |
c906108c | 1691 | |
8b93c638 | 1692 | void |
fba45db2 | 1693 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 1694 | { |
1c8831c5 | 1695 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
1696 | } |
1697 | ||
033a42c2 MK |
1698 | /* The "frame" command. With no argument, print the selected frame |
1699 | briefly. With an argument, behave like select_frame and then print | |
1700 | the selected frame. */ | |
c906108c | 1701 | |
033a42c2 | 1702 | static void |
fba45db2 | 1703 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
1704 | { |
1705 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 1706 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1707 | } |
1708 | ||
033a42c2 | 1709 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 1710 | |
7a292a7a | 1711 | static void |
fba45db2 | 1712 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 1713 | { |
033a42c2 | 1714 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 1715 | } |
c906108c | 1716 | |
033a42c2 MK |
1717 | /* Select the frame up one or COUNT_EXP stack levels from the |
1718 | previously selected frame, and print it briefly. */ | |
c906108c | 1719 | |
c906108c | 1720 | static void |
fba45db2 | 1721 | up_silently_base (char *count_exp) |
c906108c | 1722 | { |
033a42c2 MK |
1723 | struct frame_info *frame; |
1724 | int count = 1; | |
1725 | ||
c906108c | 1726 | if (count_exp) |
bb518678 | 1727 | count = parse_and_eval_long (count_exp); |
c5aa993b | 1728 | |
033a42c2 MK |
1729 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1730 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 1731 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 1732 | select_frame (frame); |
c906108c SS |
1733 | } |
1734 | ||
1735 | static void | |
fba45db2 | 1736 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 1737 | { |
c5aa993b | 1738 | up_silently_base (count_exp); |
c906108c SS |
1739 | } |
1740 | ||
1741 | static void | |
fba45db2 | 1742 | up_command (char *count_exp, int from_tty) |
c906108c SS |
1743 | { |
1744 | up_silently_base (count_exp); | |
b04f3ab4 | 1745 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1746 | } |
1747 | ||
033a42c2 MK |
1748 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
1749 | selected frame, and print it briefly. */ | |
c906108c | 1750 | |
c906108c | 1751 | static void |
fba45db2 | 1752 | down_silently_base (char *count_exp) |
c906108c | 1753 | { |
52f0bd74 | 1754 | struct frame_info *frame; |
033a42c2 | 1755 | int count = -1; |
c906108c | 1756 | if (count_exp) |
bb518678 | 1757 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 1758 | |
033a42c2 MK |
1759 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1760 | if (count != 0 && count_exp == NULL) | |
c906108c | 1761 | { |
033a42c2 MK |
1762 | /* We only do this if COUNT_EXP is not specified. That way |
1763 | "down" means to really go down (and let me know if that is | |
1764 | impossible), but "down 9999" can be used to mean go all the | |
1765 | way down without getting an error. */ | |
c906108c | 1766 | |
033a42c2 | 1767 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
1768 | } |
1769 | ||
0f7d239c | 1770 | select_frame (frame); |
c906108c SS |
1771 | } |
1772 | ||
c906108c | 1773 | static void |
fba45db2 | 1774 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
1775 | { |
1776 | down_silently_base (count_exp); | |
c906108c SS |
1777 | } |
1778 | ||
1779 | static void | |
fba45db2 | 1780 | down_command (char *count_exp, int from_tty) |
c906108c SS |
1781 | { |
1782 | down_silently_base (count_exp); | |
b04f3ab4 | 1783 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1784 | } |
1785 | \f | |
033a42c2 | 1786 | |
8b93c638 | 1787 | void |
fba45db2 | 1788 | return_command (char *retval_exp, int from_tty) |
c906108c SS |
1789 | { |
1790 | struct symbol *thisfun; | |
3d6d86c6 | 1791 | struct value *return_value = NULL; |
fc70c2a0 | 1792 | const char *query_prefix = ""; |
c906108c | 1793 | |
b04f3ab4 | 1794 | thisfun = get_frame_function (get_selected_frame ("No selected frame.")); |
c906108c | 1795 | |
fc70c2a0 AC |
1796 | /* Compute the return value. If the computation triggers an error, |
1797 | let it bail. If the return type can't be handled, set | |
1798 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
1799 | message. */ | |
c906108c SS |
1800 | if (retval_exp) |
1801 | { | |
1802 | struct type *return_type = NULL; | |
1803 | ||
fc70c2a0 AC |
1804 | /* Compute the return value. Should the computation fail, this |
1805 | call throws an error. */ | |
c906108c SS |
1806 | return_value = parse_and_eval (retval_exp); |
1807 | ||
fc70c2a0 AC |
1808 | /* Cast return value to the return type of the function. Should |
1809 | the cast fail, this call throws an error. */ | |
c906108c SS |
1810 | if (thisfun != NULL) |
1811 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
1812 | if (return_type == NULL) | |
1813 | return_type = builtin_type_int; | |
3e9a183c | 1814 | CHECK_TYPEDEF (return_type); |
c906108c SS |
1815 | return_value = value_cast (return_type, return_value); |
1816 | ||
fc70c2a0 AC |
1817 | /* Make sure the value is fully evaluated. It may live in the |
1818 | stack frame we're about to pop. */ | |
d69fe07e | 1819 | if (value_lazy (return_value)) |
c906108c | 1820 | value_fetch_lazy (return_value); |
c906108c | 1821 | |
667e784f AC |
1822 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
1823 | /* If the return-type is "void", don't try to find the | |
1824 | return-value's location. However, do still evaluate the | |
1825 | return expression so that, even when the expression result | |
1826 | is discarded, side effects such as "return i++" still | |
033a42c2 | 1827 | occur. */ |
667e784f | 1828 | return_value = NULL; |
c055b101 | 1829 | else if (using_struct_return (SYMBOL_TYPE (thisfun), return_type)) |
fc70c2a0 | 1830 | { |
667e784f AC |
1831 | query_prefix = "\ |
1832 | The location at which to store the function's return value is unknown.\n\ | |
1833 | If you continue, the return value that you specified will be ignored.\n"; | |
1834 | return_value = NULL; | |
fc70c2a0 | 1835 | } |
c906108c SS |
1836 | } |
1837 | ||
fc70c2a0 AC |
1838 | /* Does an interactive user really want to do this? Include |
1839 | information, such as how well GDB can handle the return value, in | |
1840 | the query message. */ | |
1841 | if (from_tty) | |
1842 | { | |
1843 | int confirmed; | |
1844 | if (thisfun == NULL) | |
e2e0b3e5 | 1845 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
1846 | query_prefix); |
1847 | else | |
e2e0b3e5 | 1848 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
1849 | SYMBOL_PRINT_NAME (thisfun)); |
1850 | if (!confirmed) | |
8a3fe4f8 | 1851 | error (_("Not confirmed")); |
fc70c2a0 | 1852 | } |
c906108c | 1853 | |
fc70c2a0 AC |
1854 | /* NOTE: cagney/2003-01-18: Is this silly? Rather than pop each |
1855 | frame in turn, should this code just go straight to the relevant | |
1856 | frame and pop that? */ | |
c906108c | 1857 | |
fc70c2a0 AC |
1858 | /* First discard all frames inner-to the selected frame (making the |
1859 | selected frame current). */ | |
1860 | { | |
b04f3ab4 | 1861 | struct frame_id selected_id = get_frame_id (get_selected_frame (NULL)); |
fc70c2a0 AC |
1862 | while (!frame_id_eq (selected_id, get_frame_id (get_current_frame ()))) |
1863 | { | |
09a7aba8 UW |
1864 | struct frame_info *frame = get_current_frame (); |
1865 | if (frame_id_inner (get_frame_arch (frame), selected_id, | |
1866 | get_frame_id (frame))) | |
fc70c2a0 AC |
1867 | /* Caught in the safety net, oops! We've gone way past the |
1868 | selected frame. */ | |
8a3fe4f8 | 1869 | error (_("Problem while popping stack frames (corrupt stack?)")); |
fc70c2a0 AC |
1870 | frame_pop (get_current_frame ()); |
1871 | } | |
1872 | } | |
c906108c | 1873 | |
fc70c2a0 AC |
1874 | /* Second discard the selected frame (which is now also the current |
1875 | frame). */ | |
dbe9fe58 | 1876 | frame_pop (get_current_frame ()); |
c906108c | 1877 | |
a1f5b845 | 1878 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
1879 | if (return_value != NULL) |
1880 | { | |
df407dfe | 1881 | struct type *return_type = value_type (return_value); |
7500260a | 1882 | struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ()); |
c055b101 CV |
1883 | gdb_assert (gdbarch_return_value (gdbarch, SYMBOL_TYPE (thisfun), |
1884 | return_type, NULL, NULL, NULL) | |
750eb019 | 1885 | == RETURN_VALUE_REGISTER_CONVENTION); |
c055b101 | 1886 | gdbarch_return_value (gdbarch, SYMBOL_TYPE (thisfun), return_type, |
594f7785 | 1887 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 1888 | value_contents (return_value) /*write*/); |
fc70c2a0 | 1889 | } |
1a2aab69 | 1890 | |
fc70c2a0 AC |
1891 | /* If we are at the end of a call dummy now, pop the dummy frame |
1892 | too. */ | |
e8bcf01f AC |
1893 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
1894 | frame_pop (get_current_frame ()); | |
1a2aab69 | 1895 | |
c906108c | 1896 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
1897 | if (from_tty) |
1898 | frame_command ("0", 1); | |
1899 | else | |
1900 | select_frame_command ("0", 0); | |
1901 | } | |
1902 | ||
033a42c2 MK |
1903 | /* Sets the scope to input function name, provided that the function |
1904 | is within the current stack frame */ | |
c906108c SS |
1905 | |
1906 | struct function_bounds | |
1907 | { | |
1908 | CORE_ADDR low, high; | |
1909 | }; | |
1910 | ||
1911 | static void | |
fba45db2 | 1912 | func_command (char *arg, int from_tty) |
c906108c | 1913 | { |
033a42c2 | 1914 | struct frame_info *frame; |
c906108c SS |
1915 | int found = 0; |
1916 | struct symtabs_and_lines sals; | |
1917 | int i; | |
1918 | int level = 1; | |
033a42c2 | 1919 | struct function_bounds *func_bounds = NULL; |
c906108c | 1920 | |
033a42c2 | 1921 | if (arg != NULL) |
c906108c SS |
1922 | return; |
1923 | ||
033a42c2 | 1924 | frame = parse_frame_specification ("0"); |
c906108c SS |
1925 | sals = decode_line_spec (arg, 1); |
1926 | func_bounds = (struct function_bounds *) xmalloc ( | |
1927 | sizeof (struct function_bounds) * sals.nelts); | |
1928 | for (i = 0; (i < sals.nelts && !found); i++) | |
1929 | { | |
033a42c2 MK |
1930 | if (sals.sals[i].pc == 0 |
1931 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
1932 | &func_bounds[i].low, | |
1933 | &func_bounds[i].high) == 0) | |
c906108c | 1934 | { |
033a42c2 | 1935 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
1936 | } |
1937 | } | |
1938 | ||
1939 | do | |
1940 | { | |
1941 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
1942 | found = (get_frame_pc (frame) >= func_bounds[i].low |
1943 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
1944 | if (!found) |
1945 | { | |
1946 | level = 1; | |
033a42c2 | 1947 | frame = find_relative_frame (frame, &level); |
c906108c SS |
1948 | } |
1949 | } | |
1950 | while (!found && level == 0); | |
1951 | ||
1952 | if (func_bounds) | |
b8c9b27d | 1953 | xfree (func_bounds); |
c906108c SS |
1954 | |
1955 | if (!found) | |
a3f17187 | 1956 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
206415a3 | 1957 | else if (frame != get_selected_frame (NULL)) |
033a42c2 | 1958 | select_and_print_frame (frame); |
c906108c SS |
1959 | } |
1960 | ||
1961 | /* Gets the language of the current frame. */ | |
1962 | ||
1963 | enum language | |
fba45db2 | 1964 | get_frame_language (void) |
c906108c | 1965 | { |
206415a3 | 1966 | struct frame_info *frame = deprecated_safe_get_selected_frame (); |
c5aa993b | 1967 | |
033a42c2 | 1968 | if (frame) |
c906108c | 1969 | { |
7ae4c3a5 | 1970 | /* We determine the current frame language by looking up its |
033a42c2 MK |
1971 | associated symtab. To retrieve this symtab, we use the frame |
1972 | PC. However we cannot use the frame PC as is, because it | |
1973 | usually points to the instruction following the "call", which | |
1974 | is sometimes the first instruction of another function. So | |
1975 | we rely on get_frame_address_in_block(), it provides us with | |
1976 | a PC that is guaranteed to be inside the frame's code | |
1977 | block. */ | |
1978 | CORE_ADDR pc = get_frame_address_in_block (frame); | |
1979 | struct symtab *s = find_pc_symtab (pc); | |
1980 | ||
c906108c | 1981 | if (s) |
033a42c2 | 1982 | return s->language; |
c906108c | 1983 | } |
c906108c | 1984 | |
033a42c2 | 1985 | return language_unknown; |
c906108c SS |
1986 | } |
1987 | \f | |
033a42c2 MK |
1988 | |
1989 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
1990 | void _initialize_stack (void); | |
1991 | ||
c906108c | 1992 | void |
fba45db2 | 1993 | _initialize_stack (void) |
c906108c | 1994 | { |
c5aa993b | 1995 | #if 0 |
c906108c SS |
1996 | backtrace_limit = 30; |
1997 | #endif | |
1998 | ||
1bedd215 AC |
1999 | add_com ("return", class_stack, return_command, _("\ |
2000 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
2001 | Control remains in the debugger, but when you continue\n\ |
2002 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
2003 | If an argument is given, it is an expression for the value to return.")); |
2004 | ||
2005 | add_com ("up", class_stack, up_command, _("\ | |
2006 | Select and print stack frame that called this one.\n\ | |
2007 | An argument says how many frames up to go.")); | |
2008 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
2009 | Same as the `up' command, but does not print anything.\n\ | |
2010 | This is useful in command scripts.")); | |
2011 | ||
2012 | add_com ("down", class_stack, down_command, _("\ | |
2013 | Select and print stack frame called by this one.\n\ | |
2014 | An argument says how many frames down to go.")); | |
c906108c SS |
2015 | add_com_alias ("do", "down", class_stack, 1); |
2016 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
2017 | add_com ("down-silently", class_support, down_silently_command, _("\ |
2018 | Same as the `down' command, but does not print anything.\n\ | |
2019 | This is useful in command scripts.")); | |
c906108c | 2020 | |
1bedd215 AC |
2021 | add_com ("frame", class_stack, frame_command, _("\ |
2022 | Select and print a stack frame.\n\ | |
c906108c SS |
2023 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ |
2024 | An argument specifies the frame to select.\n\ | |
2025 | It can be a stack frame number or the address of the frame.\n\ | |
2026 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 2027 | a command file or a user-defined command.")); |
c906108c SS |
2028 | |
2029 | add_com_alias ("f", "frame", class_stack, 1); | |
2030 | ||
2031 | if (xdb_commands) | |
2032 | { | |
c5aa993b | 2033 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 2034 | _("Print the current stack frame.\n")); |
c906108c SS |
2035 | add_com_alias ("V", "frame", class_stack, 1); |
2036 | } | |
1bedd215 AC |
2037 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
2038 | Select a stack frame without printing anything.\n\ | |
c906108c | 2039 | An argument specifies the frame to select.\n\ |
1bedd215 | 2040 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 2041 | |
1bedd215 AC |
2042 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2043 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
c906108c | 2044 | With a negative argument, print outermost -COUNT frames.\n\ |
1bedd215 | 2045 | Use of the 'full' qualifier also prints the values of the local variables.\n")); |
c906108c SS |
2046 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2047 | if (xdb_commands) | |
2048 | { | |
2049 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 AC |
2050 | add_com ("T", class_stack, backtrace_full_command, _("\ |
2051 | Print backtrace of all stack frames, or innermost COUNT frames \n\ | |
c906108c SS |
2052 | and the values of the local variables.\n\ |
2053 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2054 | Usage: T <count>\n")); |
c906108c SS |
2055 | } |
2056 | ||
2057 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2058 | add_info ("stack", backtrace_command, | |
1bedd215 | 2059 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2060 | add_info_alias ("s", "stack", 1); |
2061 | add_info ("frame", frame_info, | |
1bedd215 | 2062 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2063 | add_info_alias ("f", "frame", 1); |
2064 | add_info ("locals", locals_info, | |
1bedd215 | 2065 | _("Local variables of current stack frame.")); |
c906108c | 2066 | add_info ("args", args_info, |
1bedd215 | 2067 | _("Argument variables of current stack frame.")); |
c906108c | 2068 | if (xdb_commands) |
c5aa993b | 2069 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2070 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2071 | |
2072 | if (dbx_commands) | |
1bedd215 AC |
2073 | add_com ("func", class_stack, func_command, _("\ |
2074 | Select the stack frame that contains <func>.\n\ | |
2075 | Usage: func <name>\n")); | |
c906108c SS |
2076 | |
2077 | add_info ("catch", catch_info, | |
1bedd215 | 2078 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c | 2079 | |
88408340 JB |
2080 | add_setshow_enum_cmd ("frame-arguments", class_stack, |
2081 | print_frame_arguments_choices, &print_frame_arguments, | |
2082 | _("Set printing of non-scalar frame arguments"), | |
2083 | _("Show printing of non-scalar frame arguments"), | |
2084 | NULL, NULL, NULL, &setprintlist, &showprintlist); | |
2085 | ||
c906108c | 2086 | #if 0 |
1a966eab AC |
2087 | add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\ |
2088 | "Specify maximum number of frames for \"backtrace\" to print by default."), | |
c906108c | 2089 | &setlist); |
1bedd215 AC |
2090 | add_info ("backtrace-limit", backtrace_limit_info, _("\ |
2091 | The maximum number of frames for \"backtrace\" to print by default.")); | |
c906108c SS |
2092 | #endif |
2093 | } |