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 | ||
238 | switch (SYMBOL_CLASS (sym)) | |
239 | { | |
240 | case LOC_ARG: | |
241 | case LOC_REF_ARG: | |
242 | { | |
243 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 244 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
245 | |
246 | /* Compute address of next argument by adding the size of | |
247 | this argument and rounding to an int boundary. */ | |
248 | current_offset = | |
249 | ((current_offset + arg_size + sizeof (int) - 1) | |
250 | & ~(sizeof (int) - 1)); | |
251 | ||
033a42c2 MK |
252 | /* If this is the highest offset seen yet, set |
253 | highest_offset. */ | |
8d3b0994 AC |
254 | if (highest_offset == -1 |
255 | || (current_offset > highest_offset)) | |
256 | highest_offset = current_offset; | |
257 | ||
033a42c2 MK |
258 | /* Add the number of ints we're about to print to |
259 | args_printed. */ | |
8d3b0994 AC |
260 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
261 | } | |
262 | ||
033a42c2 MK |
263 | /* We care about types of symbols, but don't need to |
264 | keep track of stack offsets in them. */ | |
8d3b0994 AC |
265 | case LOC_REGPARM: |
266 | case LOC_REGPARM_ADDR: | |
8d3b0994 AC |
267 | case LOC_COMPUTED_ARG: |
268 | break; | |
269 | ||
270 | /* Other types of symbols we just skip over. */ | |
271 | default: | |
272 | continue; | |
273 | } | |
274 | ||
275 | /* We have to look up the symbol because arguments can have | |
276 | two entries (one a parameter, one a local) and the one we | |
277 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 278 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
279 | small structure and gcc2 when the argument type is float |
280 | and it is passed as a double and converted to float by | |
281 | the prologue (in the latter case the type of the LOC_ARG | |
282 | symbol is double and the type of the LOC_LOCAL symbol is | |
283 | float). */ | |
033a42c2 MK |
284 | /* But if the parameter name is null, don't try it. Null |
285 | parameter names occur on the RS/6000, for traceback | |
286 | tables. FIXME, should we even print them? */ | |
8d3b0994 AC |
287 | |
288 | if (*DEPRECATED_SYMBOL_NAME (sym)) | |
289 | { | |
290 | struct symbol *nsym; | |
033a42c2 | 291 | nsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
2570f2b7 | 292 | b, VAR_DOMAIN, NULL); |
55765a25 | 293 | gdb_assert (nsym != NULL); |
8d3b0994 AC |
294 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER) |
295 | { | |
033a42c2 MK |
296 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
297 | that it was passed on the stack and loaded into a | |
298 | register, or passed in a register and stored in a | |
299 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
300 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
301 | |
302 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
303 | |
304 | (1) Because find_saved_registers may be slow for | |
305 | remote debugging. | |
306 | ||
307 | (2) Because registers are often re-used and stack | |
308 | slots rarely (never?) are. Therefore using | |
309 | the stack slot is much less likely to print | |
310 | garbage. | |
8d3b0994 AC |
311 | |
312 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
313 | |
314 | (1) So that the backtrace prints the same value | |
315 | as "print foo". I see no compelling reason | |
316 | why this needs to be the case; having the | |
317 | backtrace print the value which was passed | |
318 | in, and "print foo" print the value as | |
319 | modified within the called function, makes | |
320 | perfect sense to me. | |
321 | ||
322 | Additional note: It might be nice if "info args" | |
323 | displayed both values. | |
324 | ||
325 | One more note: There is a case with SPARC | |
326 | structure passing where we need to use the | |
327 | LOC_REGISTER, but this is dealt with by creating | |
328 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
329 | |
330 | /* Leave sym (the LOC_ARG) alone. */ | |
331 | ; | |
332 | } | |
333 | else | |
334 | sym = nsym; | |
335 | } | |
336 | ||
337 | /* Print the current arg. */ | |
338 | if (!first) | |
339 | ui_out_text (uiout, ", "); | |
340 | ui_out_wrap_hint (uiout, " "); | |
341 | ||
342 | annotate_arg_begin (); | |
343 | ||
344 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
345 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym), | |
033a42c2 MK |
346 | SYMBOL_LANGUAGE (sym), |
347 | DMGL_PARAMS | DMGL_ANSI); | |
8d3b0994 AC |
348 | ui_out_field_stream (uiout, "name", stb); |
349 | annotate_arg_name_end (); | |
350 | ui_out_text (uiout, "="); | |
351 | ||
88408340 JB |
352 | if (print_this_frame_argument_p (sym)) |
353 | { | |
354 | /* Avoid value_print because it will deref ref parameters. | |
355 | We just want to print their addresses. Print ??? for | |
356 | args whose address we do not know. We pass 2 as | |
357 | "recurse" to val_print because our standard indentation | |
358 | here is 4 spaces, and val_print indents 2 for each | |
359 | recurse. */ | |
360 | val = read_var_value (sym, frame); | |
361 | ||
362 | annotate_arg_value (val == NULL ? NULL : value_type (val)); | |
363 | ||
364 | if (val) | |
365 | { | |
d8ca156b JB |
366 | const struct language_defn *language; |
367 | ||
368 | /* Use the appropriate language to display our symbol, | |
369 | unless the user forced the language to a specific | |
370 | language. */ | |
371 | if (language_mode == language_mode_auto) | |
372 | language = language_def (SYMBOL_LANGUAGE (sym)); | |
373 | else | |
374 | language = current_language; | |
375 | ||
88408340 | 376 | common_val_print (val, stb->stream, 0, 0, 2, |
d8ca156b | 377 | Val_no_prettyprint, language); |
88408340 JB |
378 | ui_out_field_stream (uiout, "value", stb); |
379 | } | |
380 | else | |
381 | ui_out_text (uiout, "???"); | |
382 | } | |
383 | else | |
384 | ui_out_text (uiout, "..."); | |
8d3b0994 | 385 | |
8d3b0994 AC |
386 | |
387 | /* Invoke ui_out_tuple_end. */ | |
388 | do_cleanups (list_chain); | |
389 | ||
390 | annotate_arg_end (); | |
391 | ||
392 | first = 0; | |
393 | } | |
394 | } | |
395 | ||
396 | /* Don't print nameless args in situations where we don't know | |
397 | enough about the stack to find them. */ | |
398 | if (num != -1) | |
399 | { | |
400 | long start; | |
401 | ||
402 | if (highest_offset == -1) | |
7500260a | 403 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
404 | else |
405 | start = highest_offset; | |
406 | ||
033a42c2 | 407 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
408 | first, stream); |
409 | } | |
033a42c2 | 410 | |
8d3b0994 AC |
411 | do_cleanups (old_chain); |
412 | } | |
413 | ||
033a42c2 | 414 | /* Stub for catch_errors. */ |
c906108c SS |
415 | |
416 | static int | |
4efb68b1 | 417 | print_args_stub (void *args) |
c906108c | 418 | { |
033a42c2 | 419 | struct print_args_args *p = args; |
12368003 | 420 | struct gdbarch *gdbarch = get_frame_arch (p->frame); |
c906108c | 421 | int numargs; |
c906108c | 422 | |
12368003 | 423 | if (gdbarch_frame_num_args_p (gdbarch)) |
983a287a | 424 | { |
12368003 | 425 | numargs = gdbarch_frame_num_args (gdbarch, p->frame); |
983a287a AC |
426 | gdb_assert (numargs >= 0); |
427 | } | |
428 | else | |
429 | numargs = -1; | |
033a42c2 | 430 | print_frame_args (p->func, p->frame, numargs, p->stream); |
c906108c SS |
431 | return 0; |
432 | } | |
433 | ||
033a42c2 MK |
434 | /* Set the current source and line to the location given by frame |
435 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
436 | line is in the center of the next 'list'. */ | |
c789492a | 437 | |
7abfe014 | 438 | void |
033a42c2 | 439 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
440 | { |
441 | struct symtab_and_line sal; | |
442 | ||
033a42c2 | 443 | find_frame_sal (frame, &sal); |
c789492a FL |
444 | if (sal.symtab) |
445 | { | |
446 | if (center) | |
447 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
448 | set_current_source_symtab_and_line (&sal); | |
449 | } | |
450 | } | |
451 | ||
033a42c2 MK |
452 | /* Print information about frame FRAME. The output is format according |
453 | to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of | |
454 | PRINT_WHAT is: | |
455 | ||
456 | SRC_LINE: Print only source line. | |
457 | LOCATION: Print only location. | |
458 | LOC_AND_SRC: Print location and source line. | |
459 | ||
460 | Used in "where" output, and to emit breakpoint or step | |
461 | messages. */ | |
c906108c | 462 | |
7789c6f5 | 463 | void |
033a42c2 | 464 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 465 | enum print_what print_what, int print_args) |
c906108c SS |
466 | { |
467 | struct symtab_and_line sal; | |
c5394b80 JM |
468 | int source_print; |
469 | int location_print; | |
c906108c | 470 | |
033a42c2 MK |
471 | if (get_frame_type (frame) == DUMMY_FRAME |
472 | || get_frame_type (frame) == SIGTRAMP_FRAME) | |
c906108c | 473 | { |
075559bc AC |
474 | struct cleanup *uiout_cleanup |
475 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 476 | |
033a42c2 MK |
477 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
478 | get_frame_pc (frame)); | |
6a3fe0a4 | 479 | |
c906108c | 480 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 481 | to list for this frame. */ |
0faf0076 | 482 | if (print_level) |
52c6a6ac JJ |
483 | { |
484 | ui_out_text (uiout, "#"); | |
0faf0076 | 485 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 486 | frame_relative_level (frame)); |
52c6a6ac | 487 | } |
075559bc | 488 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 489 | { |
075559bc | 490 | annotate_frame_address (); |
033a42c2 | 491 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
075559bc | 492 | annotate_frame_address_end (); |
52c6a6ac | 493 | } |
6a3fe0a4 | 494 | |
033a42c2 | 495 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
496 | { |
497 | annotate_function_call (); | |
498 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
499 | } | |
033a42c2 | 500 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
501 | { |
502 | annotate_signal_handler_caller (); | |
503 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
504 | } | |
505 | ui_out_text (uiout, "\n"); | |
c906108c | 506 | annotate_frame_end (); |
075559bc AC |
507 | |
508 | do_cleanups (uiout_cleanup); | |
c906108c SS |
509 | return; |
510 | } | |
511 | ||
033a42c2 MK |
512 | /* If FRAME is not the innermost frame, that normally means that |
513 | FRAME->pc points to *after* the call instruction, and we want to | |
514 | get the line containing the call, never the next line. But if | |
515 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
516 | next frame was not entered as the result of a call, and we want | |
517 | to get the line containing FRAME->pc. */ | |
518 | find_frame_sal (frame, &sal); | |
c906108c | 519 | |
0faf0076 AC |
520 | location_print = (print_what == LOCATION |
521 | || print_what == LOC_AND_ADDRESS | |
522 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
523 | |
524 | if (location_print || !sal.symtab) | |
033a42c2 | 525 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 526 | |
0faf0076 | 527 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 528 | |
c5394b80 JM |
529 | if (source_print && sal.symtab) |
530 | { | |
531 | int done = 0; | |
0faf0076 | 532 | int mid_statement = ((print_what == SRC_LINE) |
033a42c2 | 533 | && (get_frame_pc (frame) != sal.pc)); |
c5394b80 JM |
534 | |
535 | if (annotation_level) | |
536 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 537 | get_frame_pc (frame)); |
c5394b80 JM |
538 | if (!done) |
539 | { | |
9a4105ab | 540 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
541 | deprecated_print_frame_info_listing_hook (sal.symtab, |
542 | sal.line, | |
543 | sal.line + 1, 0); | |
ba4bbdcb | 544 | else |
c5394b80 | 545 | { |
ba4bbdcb KS |
546 | /* We used to do this earlier, but that is clearly |
547 | wrong. This function is used by many different | |
548 | parts of gdb, including normal_stop in infrun.c, | |
549 | which uses this to print out the current PC | |
550 | when we stepi/nexti into the middle of a source | |
551 | line. Only the command line really wants this | |
552 | behavior. Other UIs probably would like the | |
cbd3c883 | 553 | ability to decide for themselves if it is desired. */ |
ba4bbdcb KS |
554 | if (addressprint && mid_statement) |
555 | { | |
033a42c2 | 556 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
ba4bbdcb | 557 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
558 | } |
559 | ||
560 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 561 | } |
c5394b80 | 562 | } |
c5394b80 JM |
563 | } |
564 | ||
0faf0076 | 565 | if (print_what != LOCATION) |
033a42c2 | 566 | set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line); |
c5394b80 JM |
567 | |
568 | annotate_frame_end (); | |
569 | ||
570 | gdb_flush (gdb_stdout); | |
571 | } | |
572 | ||
573 | static void | |
033a42c2 MK |
574 | print_frame (struct frame_info *frame, int print_level, |
575 | enum print_what print_what, int print_args, | |
c5394b80 JM |
576 | struct symtab_and_line sal) |
577 | { | |
578 | struct symbol *func; | |
033a42c2 | 579 | char *funname = NULL; |
c5394b80 | 580 | enum language funlang = language_unknown; |
8b93c638 | 581 | struct ui_stream *stb; |
033a42c2 | 582 | struct cleanup *old_chain, *list_chain; |
8b93c638 JM |
583 | |
584 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 585 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
c5394b80 | 586 | |
033a42c2 | 587 | func = find_pc_function (get_frame_address_in_block (frame)); |
c906108c SS |
588 | if (func) |
589 | { | |
590 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
591 | function (when we are in the first function in a file which |
592 | is compiled without debugging symbols, the previous function | |
593 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
594 | that is supposed to tell us where the file with debugging |
595 | symbols ends has been truncated by ar because it is longer | |
596 | than 15 characters). This also occurs if the user uses asm() | |
597 | to create a function but not stabs for it (in a file compiled | |
598 | with -g). | |
c5aa993b JM |
599 | |
600 | So look in the minimal symbol tables as well, and if it comes | |
601 | up with a larger address for the function use that instead. | |
033a42c2 MK |
602 | I don't think this can ever cause any problems; there |
603 | shouldn't be any minimal symbols in the middle of a function; | |
604 | if this is ever changed many parts of GDB will need to be | |
605 | changed (and we'll create a find_pc_minimal_function or some | |
606 | such). */ | |
607 | ||
608 | struct minimal_symbol *msymbol = | |
609 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 610 | |
c906108c | 611 | if (msymbol != NULL |
c5aa993b | 612 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
613 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
614 | { | |
c906108c SS |
615 | /* We also don't know anything about the function besides |
616 | its address and name. */ | |
617 | func = 0; | |
22abf04a | 618 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
619 | funlang = SYMBOL_LANGUAGE (msymbol); |
620 | } | |
621 | else | |
622 | { | |
22abf04a | 623 | funname = DEPRECATED_SYMBOL_NAME (func); |
c906108c | 624 | funlang = SYMBOL_LANGUAGE (func); |
c5aa993b JM |
625 | if (funlang == language_cplus) |
626 | { | |
033a42c2 MK |
627 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
628 | to display the demangled name that we already have | |
629 | stored in the symbol table, but we stored a version | |
630 | with DMGL_PARAMS turned on, and here we don't want to | |
631 | display parameters. So call the demangler again, with | |
632 | DMGL_ANSI only. | |
633 | ||
634 | Yes, printf_symbol_filtered() will again try to | |
635 | demangle the name on the fly, but the issue is that | |
636 | if cplus_demangle() fails here, it will fail there | |
637 | too. So we want to catch the failure (where DEMANGLED | |
638 | is NULL below) here, while we still have our hands on | |
639 | the function symbol.) */ | |
640 | char *demangled = cplus_demangle (funname, DMGL_ANSI); | |
c5aa993b | 641 | if (demangled == NULL) |
c5394b80 | 642 | /* If the demangler fails, try the demangled name from |
033a42c2 MK |
643 | the symbol table. That'll have parameters, but |
644 | that's preferable to displaying a mangled name. */ | |
de5ad195 | 645 | funname = SYMBOL_PRINT_NAME (func); |
f91162e1 MS |
646 | else |
647 | xfree (demangled); | |
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 | { | |
22abf04a | 658 | funname = DEPRECATED_SYMBOL_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 | } |
c5394b80 | 674 | if (addressprint) |
033a42c2 | 675 | if (get_frame_pc (frame) != sal.pc || !sal.symtab |
0faf0076 | 676 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
677 | { |
678 | annotate_frame_address (); | |
033a42c2 | 679 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
8b93c638 JM |
680 | annotate_frame_address_end (); |
681 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
682 | } |
683 | annotate_frame_function_name (); | |
033a42c2 MK |
684 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
685 | funlang, DMGL_ANSI); | |
8b93c638 JM |
686 | ui_out_field_stream (uiout, "func", stb); |
687 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
688 | annotate_frame_args (); |
689 | ||
8b93c638 | 690 | ui_out_text (uiout, " ("); |
0faf0076 | 691 | if (print_args) |
c906108c | 692 | { |
c5394b80 | 693 | struct print_args_args args; |
d493eb33 | 694 | struct cleanup *args_list_chain; |
033a42c2 | 695 | args.frame = frame; |
c5394b80 JM |
696 | args.func = func; |
697 | args.stream = gdb_stdout; | |
68c81b54 | 698 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
5c3ce3f7 | 699 | catch_errors (print_args_stub, &args, "", RETURN_MASK_ERROR); |
033a42c2 MK |
700 | /* FIXME: ARGS must be a list. If one argument is a string it |
701 | will have " that will not be properly escaped. */ | |
666547aa | 702 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 703 | do_cleanups (args_list_chain); |
c5394b80 JM |
704 | QUIT; |
705 | } | |
8b93c638 | 706 | ui_out_text (uiout, ")"); |
c5394b80 JM |
707 | if (sal.symtab && sal.symtab->filename) |
708 | { | |
709 | annotate_frame_source_begin (); | |
8b93c638 JM |
710 | ui_out_wrap_hint (uiout, " "); |
711 | ui_out_text (uiout, " at "); | |
712 | annotate_frame_source_file (); | |
713 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
714 | if (ui_out_is_mi_like_p (uiout)) |
715 | { | |
716 | const char *fullname = symtab_to_fullname (sal.symtab); | |
717 | if (fullname != NULL) | |
718 | ui_out_field_string (uiout, "fullname", fullname); | |
719 | } | |
8b93c638 JM |
720 | annotate_frame_source_file_end (); |
721 | ui_out_text (uiout, ":"); | |
722 | annotate_frame_source_line (); | |
723 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
724 | annotate_frame_source_end (); |
725 | } | |
c906108c | 726 | |
c5394b80 | 727 | if (!funname || (!sal.symtab || !sal.symtab->filename)) |
c906108c | 728 | { |
a77053c2 | 729 | #ifdef PC_SOLIB |
033a42c2 | 730 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 731 | #else |
033a42c2 | 732 | char *lib = solib_address (get_frame_pc (frame)); |
a77053c2 | 733 | #endif |
c5394b80 | 734 | if (lib) |
c906108c | 735 | { |
c5394b80 | 736 | annotate_frame_where (); |
8b93c638 JM |
737 | ui_out_wrap_hint (uiout, " "); |
738 | ui_out_text (uiout, " from "); | |
739 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 740 | } |
c906108c | 741 | } |
e514a9d6 | 742 | |
666547aa | 743 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 744 | do_cleanups (list_chain); |
8b93c638 JM |
745 | ui_out_text (uiout, "\n"); |
746 | do_cleanups (old_chain); | |
c906108c SS |
747 | } |
748 | \f | |
c5aa993b | 749 | |
033a42c2 MK |
750 | /* Read a frame specification in whatever the appropriate format is |
751 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
752 | specification is in any way invalid (so this function never returns | |
753 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
754 | the default selected frame was used. */ | |
c906108c | 755 | |
1c8831c5 AC |
756 | static struct frame_info * |
757 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
758 | int *selected_frame_p) | |
c906108c | 759 | { |
1c8831c5 AC |
760 | int numargs; |
761 | struct value *args[4]; | |
762 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 763 | |
1c8831c5 AC |
764 | if (frame_exp == NULL) |
765 | numargs = 0; | |
766 | else | |
c906108c | 767 | { |
1c8831c5 | 768 | char *addr_string; |
c906108c SS |
769 | struct cleanup *tmp_cleanup; |
770 | ||
1c8831c5 AC |
771 | numargs = 0; |
772 | while (1) | |
c906108c | 773 | { |
1c8831c5 AC |
774 | char *addr_string; |
775 | struct cleanup *cleanup; | |
776 | const char *p; | |
777 | ||
778 | /* Skip leading white space, bail of EOL. */ | |
779 | while (isspace (*frame_exp)) | |
780 | frame_exp++; | |
781 | if (!*frame_exp) | |
782 | break; | |
c906108c | 783 | |
1c8831c5 AC |
784 | /* Parse the argument, extract it, save it. */ |
785 | for (p = frame_exp; | |
786 | *p && !isspace (*p); | |
787 | p++); | |
788 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 789 | frame_exp = p; |
1c8831c5 AC |
790 | cleanup = make_cleanup (xfree, addr_string); |
791 | ||
792 | /* NOTE: Parse and evaluate expression, but do not use | |
793 | functions such as parse_and_eval_long or | |
794 | parse_and_eval_address to also extract the value. | |
795 | Instead value_as_long and value_as_address are used. | |
796 | This avoids problems with expressions that contain | |
797 | side-effects. */ | |
798 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 799 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
800 | args[numargs++] = parse_and_eval (addr_string); |
801 | ||
802 | do_cleanups (cleanup); | |
c906108c SS |
803 | } |
804 | } | |
805 | ||
1c8831c5 AC |
806 | /* If no args, default to the selected frame. */ |
807 | if (numargs == 0) | |
c906108c | 808 | { |
1c8831c5 AC |
809 | if (selected_frame_p != NULL) |
810 | (*selected_frame_p) = 1; | |
811 | return get_selected_frame (message); | |
812 | } | |
c906108c | 813 | |
1c8831c5 AC |
814 | /* None of the remaining use the selected frame. */ |
815 | if (selected_frame_p != NULL) | |
98f276a0 | 816 | (*selected_frame_p) = 0; |
c906108c | 817 | |
1c8831c5 AC |
818 | /* Assume the single arg[0] is an integer, and try using that to |
819 | select a frame relative to current. */ | |
820 | if (numargs == 1) | |
821 | { | |
822 | struct frame_info *fid; | |
823 | int level = value_as_long (args[0]); | |
824 | fid = find_relative_frame (get_current_frame (), &level); | |
825 | if (level == 0) | |
826 | /* find_relative_frame was successful */ | |
827 | return fid; | |
828 | } | |
c906108c | 829 | |
1c8831c5 AC |
830 | /* Convert each value into a corresponding address. */ |
831 | { | |
832 | int i; | |
833 | for (i = 0; i < numargs; i++) | |
834 | addrs[i] = value_as_address (args[0]); | |
835 | } | |
c5aa993b | 836 | |
1c8831c5 AC |
837 | /* Assume that the single arg[0] is an address, use that to identify |
838 | a frame with a matching ID. Should this also accept stack/pc or | |
839 | stack/pc/special. */ | |
840 | if (numargs == 1) | |
841 | { | |
842 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
843 | struct frame_info *fid; | |
844 | ||
1c8831c5 AC |
845 | /* If (s)he specifies the frame with an address, he deserves |
846 | what (s)he gets. Still, give the highest one that matches. | |
847 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
848 | know). */ | |
849 | for (fid = get_current_frame (); | |
850 | fid != NULL; | |
851 | fid = get_prev_frame (fid)) | |
852 | { | |
853 | if (frame_id_eq (id, get_frame_id (fid))) | |
854 | { | |
855 | while (frame_id_eq (id, frame_unwind_id (fid))) | |
856 | fid = get_prev_frame (fid); | |
857 | return fid; | |
858 | } | |
859 | } | |
c906108c SS |
860 | } |
861 | ||
1c8831c5 AC |
862 | /* We couldn't identify the frame as an existing frame, but |
863 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
864 | if (numargs == 1) |
865 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
866 | else if (numargs == 2) |
867 | return create_new_frame (addrs[0], addrs[1]); | |
868 | else | |
8a3fe4f8 | 869 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
870 | } |
871 | ||
9c833c82 | 872 | static struct frame_info * |
1c8831c5 AC |
873 | parse_frame_specification (char *frame_exp) |
874 | { | |
875 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
876 | } |
877 | ||
033a42c2 MK |
878 | /* Print verbosely the selected frame or the frame at address |
879 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
880 | |
881 | static void | |
fba45db2 | 882 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
883 | { |
884 | struct frame_info *fi; | |
885 | struct symtab_and_line sal; | |
886 | struct symbol *func; | |
887 | struct symtab *s; | |
888 | struct frame_info *calling_frame_info; | |
889 | int i, count, numregs; | |
890 | char *funname = 0; | |
891 | enum language funlang = language_unknown; | |
82de1e5b | 892 | const char *pc_regname; |
1c8831c5 | 893 | int selected_frame_p; |
7500260a | 894 | struct gdbarch *gdbarch; |
c906108c | 895 | |
1c8831c5 | 896 | fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p); |
12368003 | 897 | gdbarch = get_frame_arch (fi); |
c906108c | 898 | |
82de1e5b AC |
899 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
900 | is not a good name. */ | |
12368003 | 901 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 902 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
903 | easily not match that of the internal value returned by |
904 | get_frame_pc(). */ | |
12368003 | 905 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 906 | else |
3e8c568d | 907 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
908 | architectures will often have a hardware register called "pc", |
909 | and that register's value, again, can easily not match | |
910 | get_frame_pc(). */ | |
911 | pc_regname = "pc"; | |
912 | ||
1058bca7 | 913 | find_frame_sal (fi, &sal); |
c906108c | 914 | func = get_frame_function (fi); |
1058bca7 | 915 | /* FIXME: cagney/2002-11-28: Why bother? Won't sal.symtab contain |
033a42c2 | 916 | the same value? */ |
bdd78e62 | 917 | s = find_pc_symtab (get_frame_pc (fi)); |
c906108c SS |
918 | if (func) |
919 | { | |
033a42c2 MK |
920 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, to |
921 | display the demangled name that we already have stored in the | |
922 | symbol table, but we stored a version with DMGL_PARAMS turned | |
923 | on, and here we don't want to display parameters. So call the | |
924 | demangler again, with DMGL_ANSI only. | |
925 | ||
926 | Yes, printf_symbol_filtered() will again try to demangle the | |
927 | name on the fly, but the issue is that if cplus_demangle() | |
928 | fails here, it will fail there too. So we want to catch the | |
929 | failure (where DEMANGLED is NULL below) here, while we still | |
930 | have our hands on the function symbol.) */ | |
22abf04a | 931 | funname = DEPRECATED_SYMBOL_NAME (func); |
c5aa993b JM |
932 | funlang = SYMBOL_LANGUAGE (func); |
933 | if (funlang == language_cplus) | |
934 | { | |
033a42c2 MK |
935 | char *demangled = cplus_demangle (funname, DMGL_ANSI); |
936 | /* If the demangler fails, try the demangled name from the | |
937 | symbol table. That'll have parameters, but that's | |
938 | preferable to displaying a mangled name. */ | |
c5aa993b | 939 | if (demangled == NULL) |
de5ad195 | 940 | funname = SYMBOL_PRINT_NAME (func); |
f91162e1 MS |
941 | else |
942 | xfree (demangled); | |
c5aa993b | 943 | } |
c906108c SS |
944 | } |
945 | else | |
946 | { | |
033a42c2 MK |
947 | struct minimal_symbol *msymbol; |
948 | ||
949 | msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c906108c SS |
950 | if (msymbol != NULL) |
951 | { | |
22abf04a | 952 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
953 | funlang = SYMBOL_LANGUAGE (msymbol); |
954 | } | |
955 | } | |
956 | calling_frame_info = get_prev_frame (fi); | |
957 | ||
1c8831c5 | 958 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 959 | { |
a3f17187 | 960 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 961 | frame_relative_level (fi)); |
c906108c SS |
962 | } |
963 | else | |
964 | { | |
a3f17187 | 965 | printf_filtered (_("Stack frame at ")); |
c906108c | 966 | } |
ed49a04f | 967 | fputs_filtered (paddress (get_frame_base (fi)), gdb_stdout); |
9c833c82 | 968 | printf_filtered (":\n"); |
82de1e5b | 969 | printf_filtered (" %s = ", pc_regname); |
ed49a04f | 970 | fputs_filtered (paddress (get_frame_pc (fi)), gdb_stdout); |
c906108c SS |
971 | |
972 | wrap_here (" "); | |
973 | if (funname) | |
974 | { | |
975 | printf_filtered (" in "); | |
976 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
977 | DMGL_ANSI | DMGL_PARAMS); | |
978 | } | |
979 | wrap_here (" "); | |
980 | if (sal.symtab) | |
981 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
982 | puts_filtered ("; "); | |
983 | wrap_here (" "); | |
82de1e5b | 984 | printf_filtered ("saved %s ", pc_regname); |
ed49a04f | 985 | fputs_filtered (paddress (frame_pc_unwind (fi)), gdb_stdout); |
c906108c SS |
986 | printf_filtered ("\n"); |
987 | ||
55feb689 DJ |
988 | if (calling_frame_info == NULL) |
989 | { | |
990 | enum unwind_stop_reason reason; | |
991 | ||
992 | reason = get_frame_unwind_stop_reason (fi); | |
993 | if (reason != UNWIND_NO_REASON) | |
994 | printf_filtered (_(" Outermost frame: %s\n"), | |
995 | frame_stop_reason_string (reason)); | |
996 | } | |
997 | ||
c906108c SS |
998 | if (calling_frame_info) |
999 | { | |
1000 | printf_filtered (" called by frame at "); | |
ed49a04f MD |
1001 | fputs_filtered (paddress (get_frame_base (calling_frame_info)), |
1002 | gdb_stdout); | |
c906108c | 1003 | } |
75e3c1f9 | 1004 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
1005 | puts_filtered (","); |
1006 | wrap_here (" "); | |
75e3c1f9 | 1007 | if (get_next_frame (fi)) |
c906108c SS |
1008 | { |
1009 | printf_filtered (" caller of frame at "); | |
ed49a04f MD |
1010 | fputs_filtered (paddress (get_frame_base (get_next_frame (fi))), |
1011 | gdb_stdout); | |
c906108c | 1012 | } |
75e3c1f9 | 1013 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1014 | puts_filtered ("\n"); |
55feb689 | 1015 | |
c906108c | 1016 | if (s) |
1058bca7 AC |
1017 | printf_filtered (" source language %s.\n", |
1018 | language_str (s->language)); | |
c906108c | 1019 | |
c906108c SS |
1020 | { |
1021 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1022 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1023 | /* Number of args for this frame, or -1 if unknown. */ |
1024 | int numargs; | |
1025 | ||
1026 | if (arg_list == 0) | |
1027 | printf_filtered (" Arglist at unknown address.\n"); | |
1028 | else | |
1029 | { | |
1030 | printf_filtered (" Arglist at "); | |
ed49a04f | 1031 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1032 | printf_filtered (","); |
1033 | ||
7500260a | 1034 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1035 | { |
1036 | numargs = -1; | |
1037 | puts_filtered (" args: "); | |
1038 | } | |
c906108c | 1039 | else |
983a287a | 1040 | { |
7500260a | 1041 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1042 | gdb_assert (numargs >= 0); |
1043 | if (numargs == 0) | |
1044 | puts_filtered (" no args."); | |
1045 | else if (numargs == 1) | |
1046 | puts_filtered (" 1 arg: "); | |
1047 | else | |
1048 | printf_filtered (" %d args: ", numargs); | |
1049 | } | |
c906108c SS |
1050 | print_frame_args (func, fi, numargs, gdb_stdout); |
1051 | puts_filtered ("\n"); | |
1052 | } | |
1053 | } | |
1054 | { | |
1055 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1056 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1057 | |
1058 | if (arg_list == 0) | |
1059 | printf_filtered (" Locals at unknown address,"); | |
1060 | else | |
1061 | { | |
1062 | printf_filtered (" Locals at "); | |
ed49a04f | 1063 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1064 | printf_filtered (","); |
1065 | } | |
1066 | } | |
1067 | ||
4f460812 AC |
1068 | /* Print as much information as possible on the location of all the |
1069 | registers. */ | |
1070 | { | |
1071 | enum lval_type lval; | |
1072 | int optimized; | |
1073 | CORE_ADDR addr; | |
1074 | int realnum; | |
1075 | int count; | |
1076 | int i; | |
1077 | int need_nl = 1; | |
1078 | ||
1079 | /* The sp is special; what's displayed isn't the save address, but | |
1080 | the value of the previous frame's sp. This is a legacy thing, | |
1081 | at one stage the frame cached the previous frame's SP instead | |
1082 | of its address, hence it was easiest to just display the cached | |
1083 | value. */ | |
7500260a | 1084 | if (gdbarch_sp_regnum (gdbarch) >= 0) |
4f460812 AC |
1085 | { |
1086 | /* Find out the location of the saved stack pointer with out | |
1087 | actually evaluating it. */ | |
7500260a | 1088 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1089 | &optimized, &lval, &addr, |
4f460812 AC |
1090 | &realnum, NULL); |
1091 | if (!optimized && lval == not_lval) | |
c906108c | 1092 | { |
10c42a71 | 1093 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 | 1094 | CORE_ADDR sp; |
7500260a | 1095 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1096 | &optimized, &lval, &addr, |
4f460812 | 1097 | &realnum, value); |
af1342ab AC |
1098 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1099 | stack pointer was packed as an unsigned integer. That | |
1100 | may or may not be valid. */ | |
3e8c568d | 1101 | sp = extract_unsigned_integer (value, |
7500260a UW |
1102 | register_size (gdbarch, |
1103 | gdbarch_sp_regnum (gdbarch))); | |
4f460812 | 1104 | printf_filtered (" Previous frame's sp is "); |
ed49a04f | 1105 | fputs_filtered (paddress (sp), gdb_stdout); |
4f460812 AC |
1106 | printf_filtered ("\n"); |
1107 | need_nl = 0; | |
c906108c | 1108 | } |
4f460812 AC |
1109 | else if (!optimized && lval == lval_memory) |
1110 | { | |
1111 | printf_filtered (" Previous frame's sp at "); | |
ed49a04f | 1112 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1113 | printf_filtered ("\n"); |
1114 | need_nl = 0; | |
1115 | } | |
1116 | else if (!optimized && lval == lval_register) | |
1117 | { | |
1118 | printf_filtered (" Previous frame's sp in %s\n", | |
7500260a | 1119 | gdbarch_register_name (gdbarch, realnum)); |
4f460812 AC |
1120 | need_nl = 0; |
1121 | } | |
1122 | /* else keep quiet. */ | |
1123 | } | |
1124 | ||
1125 | count = 0; | |
7500260a UW |
1126 | numregs = gdbarch_num_regs (gdbarch) |
1127 | + gdbarch_num_pseudo_regs (gdbarch); | |
4f460812 | 1128 | for (i = 0; i < numregs; i++) |
7500260a UW |
1129 | if (i != gdbarch_sp_regnum (gdbarch) |
1130 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) | |
4f460812 AC |
1131 | { |
1132 | /* Find out the location of the saved register without | |
1133 | fetching the corresponding value. */ | |
1134 | frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum, | |
1135 | NULL); | |
1136 | /* For moment, only display registers that were saved on the | |
1137 | stack. */ | |
1138 | if (!optimized && lval == lval_memory) | |
1139 | { | |
1140 | if (count == 0) | |
1141 | puts_filtered (" Saved registers:\n "); | |
1142 | else | |
1143 | puts_filtered (","); | |
1144 | wrap_here (" "); | |
c9f4d572 | 1145 | printf_filtered (" %s at ", |
7500260a | 1146 | gdbarch_register_name (gdbarch, i)); |
ed49a04f | 1147 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1148 | count++; |
1149 | } | |
1150 | } | |
1151 | if (count || need_nl) | |
c906108c | 1152 | puts_filtered ("\n"); |
4f460812 | 1153 | } |
c906108c SS |
1154 | } |
1155 | ||
033a42c2 MK |
1156 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1157 | frames. */ | |
c906108c SS |
1158 | |
1159 | static void | |
fba45db2 | 1160 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1161 | { |
1162 | struct frame_info *fi; | |
52f0bd74 AC |
1163 | int count; |
1164 | int i; | |
1165 | struct frame_info *trailing; | |
1166 | int trailing_level; | |
c906108c SS |
1167 | |
1168 | if (!target_has_stack) | |
8a3fe4f8 | 1169 | error (_("No stack.")); |
c906108c | 1170 | |
033a42c2 MK |
1171 | /* The following code must do two things. First, it must set the |
1172 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1173 | printing. Second, it must set the variable count to the number |
1174 | of frames which we should print, or -1 if all of them. */ | |
1175 | trailing = get_current_frame (); | |
d082b2bb AC |
1176 | |
1177 | /* The target can be in a state where there is no valid frames | |
1178 | (e.g., just connected). */ | |
1179 | if (trailing == NULL) | |
8a3fe4f8 | 1180 | error (_("No stack.")); |
d082b2bb | 1181 | |
c906108c SS |
1182 | trailing_level = 0; |
1183 | if (count_exp) | |
1184 | { | |
bb518678 | 1185 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1186 | if (count < 0) |
1187 | { | |
1188 | struct frame_info *current; | |
1189 | ||
1190 | count = -count; | |
1191 | ||
1192 | current = trailing; | |
1193 | while (current && count--) | |
1194 | { | |
1195 | QUIT; | |
1196 | current = get_prev_frame (current); | |
1197 | } | |
c5aa993b | 1198 | |
033a42c2 MK |
1199 | /* Will stop when CURRENT reaches the top of the stack. |
1200 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1201 | while (current) |
1202 | { | |
1203 | QUIT; | |
1204 | trailing = get_prev_frame (trailing); | |
1205 | current = get_prev_frame (current); | |
1206 | trailing_level++; | |
1207 | } | |
c5aa993b | 1208 | |
c906108c SS |
1209 | count = -1; |
1210 | } | |
1211 | } | |
1212 | else | |
1213 | count = -1; | |
1214 | ||
1215 | if (info_verbose) | |
1216 | { | |
1217 | struct partial_symtab *ps; | |
c5aa993b | 1218 | |
033a42c2 MK |
1219 | /* Read in symbols for all of the frames. Need to do this in a |
1220 | separate pass so that "Reading in symbols for xxx" messages | |
1221 | don't screw up the appearance of the backtrace. Also if | |
1222 | people have strong opinions against reading symbols for | |
c5aa993b | 1223 | backtrace this may have to be an option. */ |
c906108c | 1224 | i = count; |
033a42c2 | 1225 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c SS |
1226 | { |
1227 | QUIT; | |
c4a09524 | 1228 | ps = find_pc_psymtab (get_frame_address_in_block (fi)); |
c906108c | 1229 | if (ps) |
033a42c2 | 1230 | PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */ |
c906108c SS |
1231 | } |
1232 | } | |
1233 | ||
033a42c2 | 1234 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1235 | { |
1236 | QUIT; | |
1237 | ||
1238 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1239 | means further attempts to backtrace would fail (on the other |
1240 | hand, perhaps the code does or could be fixed to make sure | |
1241 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1242 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1243 | if (show_locals) |
c5aa993b | 1244 | print_frame_local_vars (fi, 1, gdb_stdout); |
55feb689 DJ |
1245 | |
1246 | /* Save the last frame to check for error conditions. */ | |
1247 | trailing = fi; | |
c906108c SS |
1248 | } |
1249 | ||
1250 | /* If we've stopped before the end, mention that. */ | |
1251 | if (fi && from_tty) | |
a3f17187 | 1252 | printf_filtered (_("(More stack frames follow...)\n")); |
55feb689 DJ |
1253 | |
1254 | /* If we've run out of frames, and the reason appears to be an error | |
1255 | condition, print it. */ | |
1256 | if (fi == NULL && trailing != NULL) | |
1257 | { | |
1258 | enum unwind_stop_reason reason; | |
1259 | ||
1260 | reason = get_frame_unwind_stop_reason (trailing); | |
1261 | if (reason > UNWIND_FIRST_ERROR) | |
1262 | printf_filtered (_("Backtrace stopped: %s\n"), | |
1263 | frame_stop_reason_string (reason)); | |
1264 | } | |
c906108c SS |
1265 | } |
1266 | ||
d75e3c94 | 1267 | struct backtrace_command_args |
033a42c2 MK |
1268 | { |
1269 | char *count_exp; | |
1270 | int show_locals; | |
1271 | int from_tty; | |
1272 | }; | |
1273 | ||
1274 | /* Stub for catch_errors. */ | |
d75e3c94 | 1275 | |
d75e3c94 JJ |
1276 | static int |
1277 | backtrace_command_stub (void *data) | |
1278 | { | |
033a42c2 | 1279 | struct backtrace_command_args *args = data; |
d75e3c94 JJ |
1280 | backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty); |
1281 | return 0; | |
1282 | } | |
1283 | ||
c906108c | 1284 | static void |
fba45db2 | 1285 | backtrace_command (char *arg, int from_tty) |
c906108c | 1286 | { |
033a42c2 MK |
1287 | struct cleanup *old_chain = NULL; |
1288 | int fulltrace_arg = -1, arglen = 0, argc = 0; | |
d75e3c94 | 1289 | struct backtrace_command_args btargs; |
c906108c | 1290 | |
033a42c2 | 1291 | if (arg) |
c906108c | 1292 | { |
033a42c2 | 1293 | char **argv; |
c906108c SS |
1294 | int i; |
1295 | ||
c5aa993b | 1296 | argv = buildargv (arg); |
7a292a7a | 1297 | old_chain = make_cleanup_freeargv (argv); |
c906108c | 1298 | argc = 0; |
033a42c2 | 1299 | for (i = 0; argv[i]; i++) |
c5aa993b | 1300 | { |
745b8ca0 | 1301 | unsigned int j; |
c5aa993b | 1302 | |
033a42c2 | 1303 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1304 | argv[i][j] = tolower (argv[i][j]); |
1305 | ||
033a42c2 MK |
1306 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1307 | fulltrace_arg = argc; | |
c5aa993b JM |
1308 | else |
1309 | { | |
033a42c2 | 1310 | arglen += strlen (argv[i]); |
c5aa993b | 1311 | argc++; |
c5aa993b JM |
1312 | } |
1313 | } | |
033a42c2 MK |
1314 | arglen += argc; |
1315 | if (fulltrace_arg >= 0) | |
c5aa993b | 1316 | { |
033a42c2 | 1317 | if (arglen > 0) |
c5aa993b | 1318 | { |
033a42c2 MK |
1319 | arg = xmalloc (arglen + 1); |
1320 | memset (arg, 0, arglen + 1); | |
1321 | for (i = 0; i < (argc + 1); i++) | |
c5aa993b | 1322 | { |
033a42c2 | 1323 | if (i != fulltrace_arg) |
c5aa993b | 1324 | { |
033a42c2 MK |
1325 | strcat (arg, argv[i]); |
1326 | strcat (arg, " "); | |
c5aa993b JM |
1327 | } |
1328 | } | |
1329 | } | |
1330 | else | |
033a42c2 | 1331 | arg = NULL; |
c5aa993b | 1332 | } |
c906108c SS |
1333 | } |
1334 | ||
033a42c2 MK |
1335 | btargs.count_exp = arg; |
1336 | btargs.show_locals = (fulltrace_arg >= 0); | |
d75e3c94 | 1337 | btargs.from_tty = from_tty; |
033a42c2 | 1338 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1339 | |
033a42c2 MK |
1340 | if (fulltrace_arg >= 0 && arglen > 0) |
1341 | xfree (arg); | |
c906108c SS |
1342 | |
1343 | if (old_chain) | |
c5aa993b | 1344 | do_cleanups (old_chain); |
c906108c SS |
1345 | } |
1346 | ||
1347 | static void | |
fba45db2 | 1348 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1349 | { |
d75e3c94 JJ |
1350 | struct backtrace_command_args btargs; |
1351 | btargs.count_exp = arg; | |
1352 | btargs.show_locals = 1; | |
1353 | btargs.from_tty = from_tty; | |
033a42c2 | 1354 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1355 | } |
c906108c | 1356 | \f |
c5aa993b | 1357 | |
033a42c2 | 1358 | /* Print the local variables of a block B active in FRAME on STREAM. |
c906108c SS |
1359 | Return 1 if any variables were printed; 0 otherwise. */ |
1360 | ||
1361 | static int | |
033a42c2 | 1362 | print_block_frame_locals (struct block *b, struct frame_info *frame, |
de4f826b | 1363 | int num_tabs, struct ui_file *stream) |
c906108c | 1364 | { |
de4f826b | 1365 | struct dict_iterator iter; |
de4f826b DC |
1366 | struct symbol *sym; |
1367 | int values_printed = 0; | |
033a42c2 | 1368 | int j; |
c906108c | 1369 | |
de4f826b | 1370 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1371 | { |
c906108c SS |
1372 | switch (SYMBOL_CLASS (sym)) |
1373 | { | |
1374 | case LOC_LOCAL: | |
1375 | case LOC_REGISTER: | |
1376 | case LOC_STATIC: | |
4c2df51b | 1377 | case LOC_COMPUTED: |
c906108c SS |
1378 | values_printed = 1; |
1379 | for (j = 0; j < num_tabs; j++) | |
c5aa993b | 1380 | fputs_filtered ("\t", stream); |
de5ad195 | 1381 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c | 1382 | fputs_filtered (" = ", stream); |
033a42c2 | 1383 | print_variable_value (sym, frame, stream); |
c906108c SS |
1384 | fprintf_filtered (stream, "\n"); |
1385 | break; | |
1386 | ||
1387 | default: | |
1388 | /* Ignore symbols which are not locals. */ | |
1389 | break; | |
1390 | } | |
1391 | } | |
033a42c2 | 1392 | |
c906108c SS |
1393 | return values_printed; |
1394 | } | |
1395 | ||
1396 | /* Same, but print labels. */ | |
1397 | ||
1398 | static int | |
fba45db2 | 1399 | print_block_frame_labels (struct block *b, int *have_default, |
aa1ee363 | 1400 | struct ui_file *stream) |
c906108c | 1401 | { |
de4f826b | 1402 | struct dict_iterator iter; |
52f0bd74 AC |
1403 | struct symbol *sym; |
1404 | int values_printed = 0; | |
c906108c | 1405 | |
de4f826b | 1406 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1407 | { |
acd8056e | 1408 | if (strcmp (DEPRECATED_SYMBOL_NAME (sym), "default") == 0) |
c906108c SS |
1409 | { |
1410 | if (*have_default) | |
1411 | continue; | |
1412 | *have_default = 1; | |
1413 | } | |
1414 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1415 | { | |
1416 | struct symtab_and_line sal; | |
1417 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); | |
1418 | values_printed = 1; | |
de5ad195 | 1419 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1420 | if (addressprint) |
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 | { |
c906108c SS |
1574 | switch (SYMBOL_CLASS (sym)) |
1575 | { | |
1576 | case LOC_ARG: | |
c906108c SS |
1577 | case LOC_REF_ARG: |
1578 | case LOC_REGPARM: | |
1579 | case LOC_REGPARM_ADDR: | |
4c2df51b | 1580 | case LOC_COMPUTED_ARG: |
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 SS |
1599 | fprintf_filtered (stream, "\n"); |
1600 | break; | |
1601 | ||
1602 | default: | |
1603 | /* Don't worry about things which aren't arguments. */ | |
1604 | break; | |
1605 | } | |
1606 | } | |
033a42c2 | 1607 | |
c906108c | 1608 | if (!values_printed) |
033a42c2 | 1609 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
1610 | } |
1611 | ||
1612 | void | |
fba45db2 | 1613 | args_info (char *ignore, int from_tty) |
c906108c | 1614 | { |
033a42c2 | 1615 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1616 | gdb_stdout); |
c906108c SS |
1617 | } |
1618 | ||
1619 | ||
1620 | static void | |
fba45db2 | 1621 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 1622 | { |
c5aa993b JM |
1623 | args_info (ignore, from_tty); |
1624 | locals_info (ignore, from_tty); | |
c906108c | 1625 | } |
c906108c | 1626 | \f |
c5aa993b | 1627 | |
033a42c2 MK |
1628 | /* Select frame FRAME. Also print the stack frame and show the source |
1629 | if this is the tui version. */ | |
bedfa57b | 1630 | static void |
033a42c2 | 1631 | select_and_print_frame (struct frame_info *frame) |
c906108c | 1632 | { |
033a42c2 MK |
1633 | select_frame (frame); |
1634 | if (frame) | |
1635 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 1636 | } |
c906108c | 1637 | \f |
c906108c | 1638 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
1639 | Can return zero under various legitimate circumstances. |
1640 | ||
1641 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
1642 | code address within the block returned. We use this to decide | |
1643 | which macros are in scope. */ | |
c906108c SS |
1644 | |
1645 | struct block * | |
ae767bfb | 1646 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c SS |
1647 | { |
1648 | if (!target_has_stack) | |
1649 | return 0; | |
1650 | ||
206415a3 | 1651 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
1652 | } |
1653 | ||
1654 | /* Find a frame a certain number of levels away from FRAME. | |
1655 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
1656 | Positive means go to earlier frames (up); negative, the reverse. | |
1657 | The int that contains the number of levels is counted toward | |
1658 | zero as the frames for those levels are found. | |
1659 | If the top or bottom frame is reached, that frame is returned, | |
1660 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
1661 | how much farther the original request asked to go. */ | |
1662 | ||
1663 | struct frame_info * | |
033a42c2 | 1664 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 1665 | { |
033a42c2 MK |
1666 | /* Going up is simple: just call get_prev_frame enough times or |
1667 | until the initial frame is reached. */ | |
c906108c SS |
1668 | while (*level_offset_ptr > 0) |
1669 | { | |
033a42c2 MK |
1670 | struct frame_info *prev = get_prev_frame (frame); |
1671 | if (!prev) | |
c906108c SS |
1672 | break; |
1673 | (*level_offset_ptr)--; | |
1674 | frame = prev; | |
1675 | } | |
033a42c2 | 1676 | |
c906108c | 1677 | /* Going down is just as simple. */ |
033a42c2 | 1678 | while (*level_offset_ptr < 0) |
c906108c | 1679 | { |
033a42c2 MK |
1680 | struct frame_info *next = get_next_frame (frame); |
1681 | if (!next) | |
1682 | break; | |
1683 | (*level_offset_ptr)++; | |
1684 | frame = next; | |
c906108c | 1685 | } |
033a42c2 | 1686 | |
c906108c SS |
1687 | return frame; |
1688 | } | |
1689 | ||
033a42c2 MK |
1690 | /* The "select_frame" command. With no argument this is a NOP. |
1691 | Select the frame at level LEVEL_EXP if it is a valid level. | |
1692 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
1693 | ||
1694 | See parse_frame_specification for more info on proper frame | |
1695 | expressions. */ | |
c906108c | 1696 | |
8b93c638 | 1697 | void |
fba45db2 | 1698 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 1699 | { |
1c8831c5 | 1700 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
1701 | } |
1702 | ||
033a42c2 MK |
1703 | /* The "frame" command. With no argument, print the selected frame |
1704 | briefly. With an argument, behave like select_frame and then print | |
1705 | the selected frame. */ | |
c906108c | 1706 | |
033a42c2 | 1707 | static void |
fba45db2 | 1708 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
1709 | { |
1710 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 1711 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1712 | } |
1713 | ||
033a42c2 | 1714 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 1715 | |
7a292a7a | 1716 | static void |
fba45db2 | 1717 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 1718 | { |
033a42c2 | 1719 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 1720 | } |
c906108c | 1721 | |
033a42c2 MK |
1722 | /* Select the frame up one or COUNT_EXP stack levels from the |
1723 | previously selected frame, and print it briefly. */ | |
c906108c | 1724 | |
c906108c | 1725 | static void |
fba45db2 | 1726 | up_silently_base (char *count_exp) |
c906108c | 1727 | { |
033a42c2 MK |
1728 | struct frame_info *frame; |
1729 | int count = 1; | |
1730 | ||
c906108c | 1731 | if (count_exp) |
bb518678 | 1732 | count = parse_and_eval_long (count_exp); |
c5aa993b | 1733 | |
033a42c2 MK |
1734 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1735 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 1736 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 1737 | select_frame (frame); |
c906108c SS |
1738 | } |
1739 | ||
1740 | static void | |
fba45db2 | 1741 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 1742 | { |
c5aa993b | 1743 | up_silently_base (count_exp); |
c906108c SS |
1744 | } |
1745 | ||
1746 | static void | |
fba45db2 | 1747 | up_command (char *count_exp, int from_tty) |
c906108c SS |
1748 | { |
1749 | up_silently_base (count_exp); | |
b04f3ab4 | 1750 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1751 | } |
1752 | ||
033a42c2 MK |
1753 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
1754 | selected frame, and print it briefly. */ | |
c906108c | 1755 | |
c906108c | 1756 | static void |
fba45db2 | 1757 | down_silently_base (char *count_exp) |
c906108c | 1758 | { |
52f0bd74 | 1759 | struct frame_info *frame; |
033a42c2 | 1760 | int count = -1; |
c906108c | 1761 | if (count_exp) |
bb518678 | 1762 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 1763 | |
033a42c2 MK |
1764 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1765 | if (count != 0 && count_exp == NULL) | |
c906108c | 1766 | { |
033a42c2 MK |
1767 | /* We only do this if COUNT_EXP is not specified. That way |
1768 | "down" means to really go down (and let me know if that is | |
1769 | impossible), but "down 9999" can be used to mean go all the | |
1770 | way down without getting an error. */ | |
c906108c | 1771 | |
033a42c2 | 1772 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
1773 | } |
1774 | ||
0f7d239c | 1775 | select_frame (frame); |
c906108c SS |
1776 | } |
1777 | ||
c906108c | 1778 | static void |
fba45db2 | 1779 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
1780 | { |
1781 | down_silently_base (count_exp); | |
c906108c SS |
1782 | } |
1783 | ||
1784 | static void | |
fba45db2 | 1785 | down_command (char *count_exp, int from_tty) |
c906108c SS |
1786 | { |
1787 | down_silently_base (count_exp); | |
b04f3ab4 | 1788 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1789 | } |
1790 | \f | |
033a42c2 | 1791 | |
8b93c638 | 1792 | void |
fba45db2 | 1793 | return_command (char *retval_exp, int from_tty) |
c906108c SS |
1794 | { |
1795 | struct symbol *thisfun; | |
3d6d86c6 | 1796 | struct value *return_value = NULL; |
fc70c2a0 | 1797 | const char *query_prefix = ""; |
c906108c | 1798 | |
b04f3ab4 | 1799 | thisfun = get_frame_function (get_selected_frame ("No selected frame.")); |
c906108c | 1800 | |
fc70c2a0 AC |
1801 | /* Compute the return value. If the computation triggers an error, |
1802 | let it bail. If the return type can't be handled, set | |
1803 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
1804 | message. */ | |
c906108c SS |
1805 | if (retval_exp) |
1806 | { | |
1807 | struct type *return_type = NULL; | |
1808 | ||
fc70c2a0 AC |
1809 | /* Compute the return value. Should the computation fail, this |
1810 | call throws an error. */ | |
c906108c SS |
1811 | return_value = parse_and_eval (retval_exp); |
1812 | ||
fc70c2a0 AC |
1813 | /* Cast return value to the return type of the function. Should |
1814 | the cast fail, this call throws an error. */ | |
c906108c SS |
1815 | if (thisfun != NULL) |
1816 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
1817 | if (return_type == NULL) | |
1818 | return_type = builtin_type_int; | |
3e9a183c | 1819 | CHECK_TYPEDEF (return_type); |
c906108c SS |
1820 | return_value = value_cast (return_type, return_value); |
1821 | ||
fc70c2a0 AC |
1822 | /* Make sure the value is fully evaluated. It may live in the |
1823 | stack frame we're about to pop. */ | |
d69fe07e | 1824 | if (value_lazy (return_value)) |
c906108c | 1825 | value_fetch_lazy (return_value); |
c906108c | 1826 | |
667e784f AC |
1827 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
1828 | /* If the return-type is "void", don't try to find the | |
1829 | return-value's location. However, do still evaluate the | |
1830 | return expression so that, even when the expression result | |
1831 | is discarded, side effects such as "return i++" still | |
033a42c2 | 1832 | occur. */ |
667e784f | 1833 | return_value = NULL; |
c055b101 | 1834 | else if (using_struct_return (SYMBOL_TYPE (thisfun), return_type)) |
fc70c2a0 | 1835 | { |
667e784f AC |
1836 | query_prefix = "\ |
1837 | The location at which to store the function's return value is unknown.\n\ | |
1838 | If you continue, the return value that you specified will be ignored.\n"; | |
1839 | return_value = NULL; | |
fc70c2a0 | 1840 | } |
c906108c SS |
1841 | } |
1842 | ||
fc70c2a0 AC |
1843 | /* Does an interactive user really want to do this? Include |
1844 | information, such as how well GDB can handle the return value, in | |
1845 | the query message. */ | |
1846 | if (from_tty) | |
1847 | { | |
1848 | int confirmed; | |
1849 | if (thisfun == NULL) | |
e2e0b3e5 | 1850 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
1851 | query_prefix); |
1852 | else | |
e2e0b3e5 | 1853 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
1854 | SYMBOL_PRINT_NAME (thisfun)); |
1855 | if (!confirmed) | |
8a3fe4f8 | 1856 | error (_("Not confirmed")); |
fc70c2a0 | 1857 | } |
c906108c | 1858 | |
fc70c2a0 AC |
1859 | /* NOTE: cagney/2003-01-18: Is this silly? Rather than pop each |
1860 | frame in turn, should this code just go straight to the relevant | |
1861 | frame and pop that? */ | |
c906108c | 1862 | |
fc70c2a0 AC |
1863 | /* First discard all frames inner-to the selected frame (making the |
1864 | selected frame current). */ | |
1865 | { | |
b04f3ab4 | 1866 | struct frame_id selected_id = get_frame_id (get_selected_frame (NULL)); |
fc70c2a0 AC |
1867 | while (!frame_id_eq (selected_id, get_frame_id (get_current_frame ()))) |
1868 | { | |
09a7aba8 UW |
1869 | struct frame_info *frame = get_current_frame (); |
1870 | if (frame_id_inner (get_frame_arch (frame), selected_id, | |
1871 | get_frame_id (frame))) | |
fc70c2a0 AC |
1872 | /* Caught in the safety net, oops! We've gone way past the |
1873 | selected frame. */ | |
8a3fe4f8 | 1874 | error (_("Problem while popping stack frames (corrupt stack?)")); |
fc70c2a0 AC |
1875 | frame_pop (get_current_frame ()); |
1876 | } | |
1877 | } | |
c906108c | 1878 | |
fc70c2a0 AC |
1879 | /* Second discard the selected frame (which is now also the current |
1880 | frame). */ | |
dbe9fe58 | 1881 | frame_pop (get_current_frame ()); |
c906108c | 1882 | |
a1f5b845 | 1883 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
1884 | if (return_value != NULL) |
1885 | { | |
df407dfe | 1886 | struct type *return_type = value_type (return_value); |
7500260a | 1887 | struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ()); |
c055b101 CV |
1888 | gdb_assert (gdbarch_return_value (gdbarch, SYMBOL_TYPE (thisfun), |
1889 | return_type, NULL, NULL, NULL) | |
750eb019 | 1890 | == RETURN_VALUE_REGISTER_CONVENTION); |
c055b101 | 1891 | gdbarch_return_value (gdbarch, SYMBOL_TYPE (thisfun), return_type, |
594f7785 | 1892 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 1893 | value_contents (return_value) /*write*/); |
fc70c2a0 | 1894 | } |
1a2aab69 | 1895 | |
fc70c2a0 AC |
1896 | /* If we are at the end of a call dummy now, pop the dummy frame |
1897 | too. */ | |
e8bcf01f AC |
1898 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
1899 | frame_pop (get_current_frame ()); | |
1a2aab69 | 1900 | |
c906108c | 1901 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
1902 | if (from_tty) |
1903 | frame_command ("0", 1); | |
1904 | else | |
1905 | select_frame_command ("0", 0); | |
1906 | } | |
1907 | ||
033a42c2 MK |
1908 | /* Sets the scope to input function name, provided that the function |
1909 | is within the current stack frame */ | |
c906108c SS |
1910 | |
1911 | struct function_bounds | |
1912 | { | |
1913 | CORE_ADDR low, high; | |
1914 | }; | |
1915 | ||
1916 | static void | |
fba45db2 | 1917 | func_command (char *arg, int from_tty) |
c906108c | 1918 | { |
033a42c2 | 1919 | struct frame_info *frame; |
c906108c SS |
1920 | int found = 0; |
1921 | struct symtabs_and_lines sals; | |
1922 | int i; | |
1923 | int level = 1; | |
033a42c2 | 1924 | struct function_bounds *func_bounds = NULL; |
c906108c | 1925 | |
033a42c2 | 1926 | if (arg != NULL) |
c906108c SS |
1927 | return; |
1928 | ||
033a42c2 | 1929 | frame = parse_frame_specification ("0"); |
c906108c SS |
1930 | sals = decode_line_spec (arg, 1); |
1931 | func_bounds = (struct function_bounds *) xmalloc ( | |
1932 | sizeof (struct function_bounds) * sals.nelts); | |
1933 | for (i = 0; (i < sals.nelts && !found); i++) | |
1934 | { | |
033a42c2 MK |
1935 | if (sals.sals[i].pc == 0 |
1936 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
1937 | &func_bounds[i].low, | |
1938 | &func_bounds[i].high) == 0) | |
c906108c | 1939 | { |
033a42c2 | 1940 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
1941 | } |
1942 | } | |
1943 | ||
1944 | do | |
1945 | { | |
1946 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
1947 | found = (get_frame_pc (frame) >= func_bounds[i].low |
1948 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
1949 | if (!found) |
1950 | { | |
1951 | level = 1; | |
033a42c2 | 1952 | frame = find_relative_frame (frame, &level); |
c906108c SS |
1953 | } |
1954 | } | |
1955 | while (!found && level == 0); | |
1956 | ||
1957 | if (func_bounds) | |
b8c9b27d | 1958 | xfree (func_bounds); |
c906108c SS |
1959 | |
1960 | if (!found) | |
a3f17187 | 1961 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
206415a3 | 1962 | else if (frame != get_selected_frame (NULL)) |
033a42c2 | 1963 | select_and_print_frame (frame); |
c906108c SS |
1964 | } |
1965 | ||
1966 | /* Gets the language of the current frame. */ | |
1967 | ||
1968 | enum language | |
fba45db2 | 1969 | get_frame_language (void) |
c906108c | 1970 | { |
206415a3 | 1971 | struct frame_info *frame = deprecated_safe_get_selected_frame (); |
c5aa993b | 1972 | |
033a42c2 | 1973 | if (frame) |
c906108c | 1974 | { |
7ae4c3a5 | 1975 | /* We determine the current frame language by looking up its |
033a42c2 MK |
1976 | associated symtab. To retrieve this symtab, we use the frame |
1977 | PC. However we cannot use the frame PC as is, because it | |
1978 | usually points to the instruction following the "call", which | |
1979 | is sometimes the first instruction of another function. So | |
1980 | we rely on get_frame_address_in_block(), it provides us with | |
1981 | a PC that is guaranteed to be inside the frame's code | |
1982 | block. */ | |
1983 | CORE_ADDR pc = get_frame_address_in_block (frame); | |
1984 | struct symtab *s = find_pc_symtab (pc); | |
1985 | ||
c906108c | 1986 | if (s) |
033a42c2 | 1987 | return s->language; |
c906108c | 1988 | } |
c906108c | 1989 | |
033a42c2 | 1990 | return language_unknown; |
c906108c SS |
1991 | } |
1992 | \f | |
033a42c2 MK |
1993 | |
1994 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
1995 | void _initialize_stack (void); | |
1996 | ||
c906108c | 1997 | void |
fba45db2 | 1998 | _initialize_stack (void) |
c906108c | 1999 | { |
c5aa993b | 2000 | #if 0 |
c906108c SS |
2001 | backtrace_limit = 30; |
2002 | #endif | |
2003 | ||
1bedd215 AC |
2004 | add_com ("return", class_stack, return_command, _("\ |
2005 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
2006 | Control remains in the debugger, but when you continue\n\ |
2007 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
2008 | If an argument is given, it is an expression for the value to return.")); |
2009 | ||
2010 | add_com ("up", class_stack, up_command, _("\ | |
2011 | Select and print stack frame that called this one.\n\ | |
2012 | An argument says how many frames up to go.")); | |
2013 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
2014 | Same as the `up' command, but does not print anything.\n\ | |
2015 | This is useful in command scripts.")); | |
2016 | ||
2017 | add_com ("down", class_stack, down_command, _("\ | |
2018 | Select and print stack frame called by this one.\n\ | |
2019 | An argument says how many frames down to go.")); | |
c906108c SS |
2020 | add_com_alias ("do", "down", class_stack, 1); |
2021 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
2022 | add_com ("down-silently", class_support, down_silently_command, _("\ |
2023 | Same as the `down' command, but does not print anything.\n\ | |
2024 | This is useful in command scripts.")); | |
c906108c | 2025 | |
1bedd215 AC |
2026 | add_com ("frame", class_stack, frame_command, _("\ |
2027 | Select and print a stack frame.\n\ | |
c906108c SS |
2028 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ |
2029 | An argument specifies the frame to select.\n\ | |
2030 | It can be a stack frame number or the address of the frame.\n\ | |
2031 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 2032 | a command file or a user-defined command.")); |
c906108c SS |
2033 | |
2034 | add_com_alias ("f", "frame", class_stack, 1); | |
2035 | ||
2036 | if (xdb_commands) | |
2037 | { | |
c5aa993b | 2038 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 2039 | _("Print the current stack frame.\n")); |
c906108c SS |
2040 | add_com_alias ("V", "frame", class_stack, 1); |
2041 | } | |
1bedd215 AC |
2042 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
2043 | Select a stack frame without printing anything.\n\ | |
c906108c | 2044 | An argument specifies the frame to select.\n\ |
1bedd215 | 2045 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 2046 | |
1bedd215 AC |
2047 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2048 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
c906108c | 2049 | With a negative argument, print outermost -COUNT frames.\n\ |
1bedd215 | 2050 | Use of the 'full' qualifier also prints the values of the local variables.\n")); |
c906108c SS |
2051 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2052 | if (xdb_commands) | |
2053 | { | |
2054 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 AC |
2055 | add_com ("T", class_stack, backtrace_full_command, _("\ |
2056 | Print backtrace of all stack frames, or innermost COUNT frames \n\ | |
c906108c SS |
2057 | and the values of the local variables.\n\ |
2058 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2059 | Usage: T <count>\n")); |
c906108c SS |
2060 | } |
2061 | ||
2062 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2063 | add_info ("stack", backtrace_command, | |
1bedd215 | 2064 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2065 | add_info_alias ("s", "stack", 1); |
2066 | add_info ("frame", frame_info, | |
1bedd215 | 2067 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2068 | add_info_alias ("f", "frame", 1); |
2069 | add_info ("locals", locals_info, | |
1bedd215 | 2070 | _("Local variables of current stack frame.")); |
c906108c | 2071 | add_info ("args", args_info, |
1bedd215 | 2072 | _("Argument variables of current stack frame.")); |
c906108c | 2073 | if (xdb_commands) |
c5aa993b | 2074 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2075 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2076 | |
2077 | if (dbx_commands) | |
1bedd215 AC |
2078 | add_com ("func", class_stack, func_command, _("\ |
2079 | Select the stack frame that contains <func>.\n\ | |
2080 | Usage: func <name>\n")); | |
c906108c SS |
2081 | |
2082 | add_info ("catch", catch_info, | |
1bedd215 | 2083 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c | 2084 | |
88408340 JB |
2085 | add_setshow_enum_cmd ("frame-arguments", class_stack, |
2086 | print_frame_arguments_choices, &print_frame_arguments, | |
2087 | _("Set printing of non-scalar frame arguments"), | |
2088 | _("Show printing of non-scalar frame arguments"), | |
2089 | NULL, NULL, NULL, &setprintlist, &showprintlist); | |
2090 | ||
c906108c | 2091 | #if 0 |
1a966eab AC |
2092 | add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\ |
2093 | "Specify maximum number of frames for \"backtrace\" to print by default."), | |
c906108c | 2094 | &setlist); |
1bedd215 AC |
2095 | add_info ("backtrace-limit", backtrace_limit_info, _("\ |
2096 | The maximum number of frames for \"backtrace\" to print by default.")); | |
c906108c SS |
2097 | #endif |
2098 | } |