Commit | Line | Data |
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c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007 | |
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 | |
a58dd373 | 53 | /* Prototypes for local functions. */ |
c906108c | 54 | |
d9fcf2fb JM |
55 | static void print_frame_local_vars (struct frame_info *, int, |
56 | struct ui_file *); | |
c906108c | 57 | |
033a42c2 MK |
58 | static void print_frame (struct frame_info *frame, int print_level, |
59 | enum print_what print_what, int print_args, | |
c5394b80 JM |
60 | struct symtab_and_line sal); |
61 | ||
c906108c SS |
62 | /* Zero means do things normally; we are interacting directly with the |
63 | user. One means print the full filename and linenumber when a | |
64 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
65 | parse. Two means print similar annotations, but in many more | |
66 | cases and in a slightly different syntax. */ | |
67 | ||
68 | int annotation_level = 0; | |
c906108c | 69 | \f |
c5aa993b JM |
70 | |
71 | struct print_stack_frame_args | |
033a42c2 MK |
72 | { |
73 | struct frame_info *frame; | |
74 | int print_level; | |
75 | enum print_what print_what; | |
76 | int print_args; | |
77 | }; | |
78 | ||
79 | /* Show or print the frame arguments; stub for catch_errors. */ | |
80 | ||
c906108c | 81 | static int |
fba45db2 | 82 | print_stack_frame_stub (void *args) |
c906108c | 83 | { |
c789492a | 84 | struct print_stack_frame_args *p = args; |
033a42c2 | 85 | int center = (p->print_what == SRC_LINE || p->print_what == SRC_AND_LOC); |
c906108c | 86 | |
033a42c2 MK |
87 | print_frame_info (p->frame, p->print_level, p->print_what, p->print_args); |
88 | set_current_sal_from_frame (p->frame, center); | |
c906108c SS |
89 | return 0; |
90 | } | |
91 | ||
033a42c2 | 92 | /* Show or print a stack frame FRAME briefly. The output is format |
d762c46a AC |
93 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
94 | relative level, function name, argument list, and file name and | |
95 | line number. If the frame's PC is not at the beginning of the | |
96 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
97 | |
98 | void | |
033a42c2 | 99 | print_stack_frame (struct frame_info *frame, int print_level, |
0faf0076 | 100 | enum print_what print_what) |
c906108c SS |
101 | { |
102 | struct print_stack_frame_args args; | |
103 | ||
033a42c2 | 104 | args.frame = frame; |
0faf0076 AC |
105 | args.print_level = print_level; |
106 | args.print_what = print_what; | |
aaf9e9fd DP |
107 | /* For mi, alway print location and address. */ |
108 | args.print_what = ui_out_is_mi_like_p (uiout) ? LOC_AND_ADDRESS : print_what; | |
0faf0076 | 109 | args.print_args = 1; |
c906108c | 110 | |
033a42c2 | 111 | catch_errors (print_stack_frame_stub, &args, "", RETURN_MASK_ALL); |
7789c6f5 | 112 | } |
c906108c | 113 | |
c5aa993b JM |
114 | struct print_args_args |
115 | { | |
c906108c | 116 | struct symbol *func; |
033a42c2 | 117 | struct frame_info *frame; |
d9fcf2fb | 118 | struct ui_file *stream; |
c906108c SS |
119 | }; |
120 | ||
033a42c2 | 121 | static int print_args_stub (void *args); |
c906108c | 122 | |
033a42c2 MK |
123 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
124 | the offset of the first nameless argument, and NUM is the number of | |
125 | nameless arguments to print. FIRST is nonzero if this is the first | |
126 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
127 | |
128 | static void | |
033a42c2 | 129 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
130 | int first, struct ui_file *stream) |
131 | { | |
132 | int i; | |
133 | CORE_ADDR argsaddr; | |
134 | long arg_value; | |
135 | ||
136 | for (i = 0; i < num; i++) | |
137 | { | |
138 | QUIT; | |
033a42c2 | 139 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
140 | if (!argsaddr) |
141 | return; | |
142 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
143 | if (!first) | |
144 | fprintf_filtered (stream, ", "); | |
145 | fprintf_filtered (stream, "%ld", arg_value); | |
146 | first = 0; | |
147 | start += sizeof (int); | |
148 | } | |
149 | } | |
150 | ||
033a42c2 MK |
151 | /* Print the arguments of frame FRAME on STREAM, given the function |
152 | FUNC running in that frame (as a symbol), where NUM is the number | |
153 | of arguments according to the stack frame (or -1 if the number of | |
154 | arguments is unknown). */ | |
8d3b0994 | 155 | |
033a42c2 MK |
156 | /* Note that currently the "number of argumentss according to the |
157 | stack frame" is only known on VAX where i refers to the "number of | |
158 | ints of argumentss according to the stack frame". */ | |
8d3b0994 AC |
159 | |
160 | static void | |
033a42c2 MK |
161 | print_frame_args (struct symbol *func, struct frame_info *frame, |
162 | int num, struct ui_file *stream) | |
8d3b0994 | 163 | { |
8d3b0994 | 164 | int first = 1; |
8d3b0994 | 165 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
166 | at the highest offset, or -1 if we haven't come to a stack |
167 | argument yet. */ | |
8d3b0994 | 168 | long highest_offset = -1; |
8d3b0994 AC |
169 | /* Number of ints of arguments that we have printed so far. */ |
170 | int args_printed = 0; | |
171 | struct cleanup *old_chain, *list_chain; | |
172 | struct ui_stream *stb; | |
173 | ||
174 | stb = ui_out_stream_new (uiout); | |
175 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
176 | ||
177 | if (func) | |
178 | { | |
033a42c2 MK |
179 | struct block *b = SYMBOL_BLOCK_VALUE (func); |
180 | struct dict_iterator iter; | |
181 | struct symbol *sym; | |
182 | struct value *val; | |
8d3b0994 | 183 | |
de4f826b | 184 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 AC |
185 | { |
186 | QUIT; | |
187 | ||
188 | /* Keep track of the highest stack argument offset seen, and | |
189 | skip over any kinds of symbols we don't care about. */ | |
190 | ||
191 | switch (SYMBOL_CLASS (sym)) | |
192 | { | |
193 | case LOC_ARG: | |
194 | case LOC_REF_ARG: | |
195 | { | |
196 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 197 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
198 | |
199 | /* Compute address of next argument by adding the size of | |
200 | this argument and rounding to an int boundary. */ | |
201 | current_offset = | |
202 | ((current_offset + arg_size + sizeof (int) - 1) | |
203 | & ~(sizeof (int) - 1)); | |
204 | ||
033a42c2 MK |
205 | /* If this is the highest offset seen yet, set |
206 | highest_offset. */ | |
8d3b0994 AC |
207 | if (highest_offset == -1 |
208 | || (current_offset > highest_offset)) | |
209 | highest_offset = current_offset; | |
210 | ||
033a42c2 MK |
211 | /* Add the number of ints we're about to print to |
212 | args_printed. */ | |
8d3b0994 AC |
213 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
214 | } | |
215 | ||
033a42c2 MK |
216 | /* We care about types of symbols, but don't need to |
217 | keep track of stack offsets in them. */ | |
8d3b0994 AC |
218 | case LOC_REGPARM: |
219 | case LOC_REGPARM_ADDR: | |
220 | case LOC_LOCAL_ARG: | |
221 | case LOC_BASEREG_ARG: | |
222 | case LOC_COMPUTED_ARG: | |
223 | break; | |
224 | ||
225 | /* Other types of symbols we just skip over. */ | |
226 | default: | |
227 | continue; | |
228 | } | |
229 | ||
230 | /* We have to look up the symbol because arguments can have | |
231 | two entries (one a parameter, one a local) and the one we | |
232 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 233 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
234 | small structure and gcc2 when the argument type is float |
235 | and it is passed as a double and converted to float by | |
236 | the prologue (in the latter case the type of the LOC_ARG | |
237 | symbol is double and the type of the LOC_LOCAL symbol is | |
238 | float). */ | |
033a42c2 MK |
239 | /* But if the parameter name is null, don't try it. Null |
240 | parameter names occur on the RS/6000, for traceback | |
241 | tables. FIXME, should we even print them? */ | |
8d3b0994 AC |
242 | |
243 | if (*DEPRECATED_SYMBOL_NAME (sym)) | |
244 | { | |
245 | struct symbol *nsym; | |
033a42c2 MK |
246 | nsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
247 | b, VAR_DOMAIN, NULL, NULL); | |
55765a25 | 248 | gdb_assert (nsym != NULL); |
8d3b0994 AC |
249 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER) |
250 | { | |
033a42c2 MK |
251 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
252 | that it was passed on the stack and loaded into a | |
253 | register, or passed in a register and stored in a | |
254 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
255 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
256 | |
257 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
258 | |
259 | (1) Because find_saved_registers may be slow for | |
260 | remote debugging. | |
261 | ||
262 | (2) Because registers are often re-used and stack | |
263 | slots rarely (never?) are. Therefore using | |
264 | the stack slot is much less likely to print | |
265 | garbage. | |
8d3b0994 AC |
266 | |
267 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
268 | |
269 | (1) So that the backtrace prints the same value | |
270 | as "print foo". I see no compelling reason | |
271 | why this needs to be the case; having the | |
272 | backtrace print the value which was passed | |
273 | in, and "print foo" print the value as | |
274 | modified within the called function, makes | |
275 | perfect sense to me. | |
276 | ||
277 | Additional note: It might be nice if "info args" | |
278 | displayed both values. | |
279 | ||
280 | One more note: There is a case with SPARC | |
281 | structure passing where we need to use the | |
282 | LOC_REGISTER, but this is dealt with by creating | |
283 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
284 | |
285 | /* Leave sym (the LOC_ARG) alone. */ | |
286 | ; | |
287 | } | |
288 | else | |
289 | sym = nsym; | |
290 | } | |
291 | ||
292 | /* Print the current arg. */ | |
293 | if (!first) | |
294 | ui_out_text (uiout, ", "); | |
295 | ui_out_wrap_hint (uiout, " "); | |
296 | ||
297 | annotate_arg_begin (); | |
298 | ||
299 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
300 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym), | |
033a42c2 MK |
301 | SYMBOL_LANGUAGE (sym), |
302 | DMGL_PARAMS | DMGL_ANSI); | |
8d3b0994 AC |
303 | ui_out_field_stream (uiout, "name", stb); |
304 | annotate_arg_name_end (); | |
305 | ui_out_text (uiout, "="); | |
306 | ||
033a42c2 MK |
307 | /* Avoid value_print because it will deref ref parameters. |
308 | We just want to print their addresses. Print ??? for | |
309 | args whose address we do not know. We pass 2 as | |
310 | "recurse" to val_print because our standard indentation | |
311 | here is 4 spaces, and val_print indents 2 for each | |
312 | recurse. */ | |
313 | val = read_var_value (sym, frame); | |
8d3b0994 | 314 | |
df407dfe | 315 | annotate_arg_value (val == NULL ? NULL : value_type (val)); |
8d3b0994 AC |
316 | |
317 | if (val) | |
318 | { | |
806048c6 | 319 | common_val_print (val, stb->stream, 0, 0, 2, Val_no_prettyprint); |
8d3b0994 AC |
320 | ui_out_field_stream (uiout, "value", stb); |
321 | } | |
322 | else | |
323 | ui_out_text (uiout, "???"); | |
324 | ||
325 | /* Invoke ui_out_tuple_end. */ | |
326 | do_cleanups (list_chain); | |
327 | ||
328 | annotate_arg_end (); | |
329 | ||
330 | first = 0; | |
331 | } | |
332 | } | |
333 | ||
334 | /* Don't print nameless args in situations where we don't know | |
335 | enough about the stack to find them. */ | |
336 | if (num != -1) | |
337 | { | |
338 | long start; | |
339 | ||
340 | if (highest_offset == -1) | |
7500260a | 341 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
342 | else |
343 | start = highest_offset; | |
344 | ||
033a42c2 | 345 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
346 | first, stream); |
347 | } | |
033a42c2 | 348 | |
8d3b0994 AC |
349 | do_cleanups (old_chain); |
350 | } | |
351 | ||
033a42c2 | 352 | /* Stub for catch_errors. */ |
c906108c SS |
353 | |
354 | static int | |
4efb68b1 | 355 | print_args_stub (void *args) |
c906108c | 356 | { |
033a42c2 | 357 | struct print_args_args *p = args; |
c906108c | 358 | int numargs; |
c906108c | 359 | |
bbcf301a | 360 | if (gdbarch_frame_num_args_p (current_gdbarch)) |
983a287a | 361 | { |
bbcf301a | 362 | numargs = gdbarch_frame_num_args (current_gdbarch, p->frame); |
983a287a AC |
363 | gdb_assert (numargs >= 0); |
364 | } | |
365 | else | |
366 | numargs = -1; | |
033a42c2 | 367 | print_frame_args (p->func, p->frame, numargs, p->stream); |
c906108c SS |
368 | return 0; |
369 | } | |
370 | ||
033a42c2 MK |
371 | /* Set the current source and line to the location given by frame |
372 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
373 | line is in the center of the next 'list'. */ | |
c789492a | 374 | |
7abfe014 | 375 | void |
033a42c2 | 376 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
377 | { |
378 | struct symtab_and_line sal; | |
379 | ||
033a42c2 | 380 | find_frame_sal (frame, &sal); |
c789492a FL |
381 | if (sal.symtab) |
382 | { | |
383 | if (center) | |
384 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
385 | set_current_source_symtab_and_line (&sal); | |
386 | } | |
387 | } | |
388 | ||
033a42c2 MK |
389 | /* Print information about frame FRAME. The output is format according |
390 | to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of | |
391 | PRINT_WHAT is: | |
392 | ||
393 | SRC_LINE: Print only source line. | |
394 | LOCATION: Print only location. | |
395 | LOC_AND_SRC: Print location and source line. | |
396 | ||
397 | Used in "where" output, and to emit breakpoint or step | |
398 | messages. */ | |
c906108c | 399 | |
7789c6f5 | 400 | void |
033a42c2 | 401 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 402 | enum print_what print_what, int print_args) |
c906108c SS |
403 | { |
404 | struct symtab_and_line sal; | |
c5394b80 JM |
405 | int source_print; |
406 | int location_print; | |
c906108c | 407 | |
033a42c2 MK |
408 | if (get_frame_type (frame) == DUMMY_FRAME |
409 | || get_frame_type (frame) == SIGTRAMP_FRAME) | |
c906108c | 410 | { |
075559bc AC |
411 | struct cleanup *uiout_cleanup |
412 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 413 | |
033a42c2 MK |
414 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
415 | get_frame_pc (frame)); | |
6a3fe0a4 | 416 | |
c906108c | 417 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 418 | to list for this frame. */ |
0faf0076 | 419 | if (print_level) |
52c6a6ac JJ |
420 | { |
421 | ui_out_text (uiout, "#"); | |
0faf0076 | 422 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 423 | frame_relative_level (frame)); |
52c6a6ac | 424 | } |
075559bc | 425 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 426 | { |
075559bc | 427 | annotate_frame_address (); |
033a42c2 | 428 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
075559bc | 429 | annotate_frame_address_end (); |
52c6a6ac | 430 | } |
6a3fe0a4 | 431 | |
033a42c2 | 432 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
433 | { |
434 | annotate_function_call (); | |
435 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
436 | } | |
033a42c2 | 437 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
438 | { |
439 | annotate_signal_handler_caller (); | |
440 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
441 | } | |
442 | ui_out_text (uiout, "\n"); | |
c906108c | 443 | annotate_frame_end (); |
075559bc AC |
444 | |
445 | do_cleanups (uiout_cleanup); | |
c906108c SS |
446 | return; |
447 | } | |
448 | ||
033a42c2 MK |
449 | /* If FRAME is not the innermost frame, that normally means that |
450 | FRAME->pc points to *after* the call instruction, and we want to | |
451 | get the line containing the call, never the next line. But if | |
452 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
453 | next frame was not entered as the result of a call, and we want | |
454 | to get the line containing FRAME->pc. */ | |
455 | find_frame_sal (frame, &sal); | |
c906108c | 456 | |
0faf0076 AC |
457 | location_print = (print_what == LOCATION |
458 | || print_what == LOC_AND_ADDRESS | |
459 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
460 | |
461 | if (location_print || !sal.symtab) | |
033a42c2 | 462 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 463 | |
0faf0076 | 464 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 465 | |
c5394b80 JM |
466 | if (source_print && sal.symtab) |
467 | { | |
468 | int done = 0; | |
0faf0076 | 469 | int mid_statement = ((print_what == SRC_LINE) |
033a42c2 | 470 | && (get_frame_pc (frame) != sal.pc)); |
c5394b80 JM |
471 | |
472 | if (annotation_level) | |
473 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 474 | get_frame_pc (frame)); |
c5394b80 JM |
475 | if (!done) |
476 | { | |
9a4105ab | 477 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
478 | deprecated_print_frame_info_listing_hook (sal.symtab, |
479 | sal.line, | |
480 | sal.line + 1, 0); | |
ba4bbdcb | 481 | else |
c5394b80 | 482 | { |
ba4bbdcb KS |
483 | /* We used to do this earlier, but that is clearly |
484 | wrong. This function is used by many different | |
485 | parts of gdb, including normal_stop in infrun.c, | |
486 | which uses this to print out the current PC | |
487 | when we stepi/nexti into the middle of a source | |
488 | line. Only the command line really wants this | |
489 | behavior. Other UIs probably would like the | |
cbd3c883 | 490 | ability to decide for themselves if it is desired. */ |
ba4bbdcb KS |
491 | if (addressprint && mid_statement) |
492 | { | |
033a42c2 | 493 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
ba4bbdcb | 494 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
495 | } |
496 | ||
497 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 498 | } |
c5394b80 | 499 | } |
c5394b80 JM |
500 | } |
501 | ||
0faf0076 | 502 | if (print_what != LOCATION) |
033a42c2 | 503 | set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line); |
c5394b80 JM |
504 | |
505 | annotate_frame_end (); | |
506 | ||
507 | gdb_flush (gdb_stdout); | |
508 | } | |
509 | ||
510 | static void | |
033a42c2 MK |
511 | print_frame (struct frame_info *frame, int print_level, |
512 | enum print_what print_what, int print_args, | |
c5394b80 JM |
513 | struct symtab_and_line sal) |
514 | { | |
515 | struct symbol *func; | |
033a42c2 | 516 | char *funname = NULL; |
c5394b80 | 517 | enum language funlang = language_unknown; |
8b93c638 | 518 | struct ui_stream *stb; |
033a42c2 | 519 | struct cleanup *old_chain, *list_chain; |
8b93c638 JM |
520 | |
521 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 522 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
c5394b80 | 523 | |
033a42c2 | 524 | func = find_pc_function (get_frame_address_in_block (frame)); |
c906108c SS |
525 | if (func) |
526 | { | |
527 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
528 | function (when we are in the first function in a file which |
529 | is compiled without debugging symbols, the previous function | |
530 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
531 | that is supposed to tell us where the file with debugging |
532 | symbols ends has been truncated by ar because it is longer | |
533 | than 15 characters). This also occurs if the user uses asm() | |
534 | to create a function but not stabs for it (in a file compiled | |
535 | with -g). | |
c5aa993b JM |
536 | |
537 | So look in the minimal symbol tables as well, and if it comes | |
538 | up with a larger address for the function use that instead. | |
033a42c2 MK |
539 | I don't think this can ever cause any problems; there |
540 | shouldn't be any minimal symbols in the middle of a function; | |
541 | if this is ever changed many parts of GDB will need to be | |
542 | changed (and we'll create a find_pc_minimal_function or some | |
543 | such). */ | |
544 | ||
545 | struct minimal_symbol *msymbol = | |
546 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 547 | |
c906108c | 548 | if (msymbol != NULL |
c5aa993b | 549 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
550 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
551 | { | |
c906108c SS |
552 | /* We also don't know anything about the function besides |
553 | its address and name. */ | |
554 | func = 0; | |
22abf04a | 555 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
556 | funlang = SYMBOL_LANGUAGE (msymbol); |
557 | } | |
558 | else | |
559 | { | |
22abf04a | 560 | funname = DEPRECATED_SYMBOL_NAME (func); |
c906108c | 561 | funlang = SYMBOL_LANGUAGE (func); |
c5aa993b JM |
562 | if (funlang == language_cplus) |
563 | { | |
033a42c2 MK |
564 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
565 | to display the demangled name that we already have | |
566 | stored in the symbol table, but we stored a version | |
567 | with DMGL_PARAMS turned on, and here we don't want to | |
568 | display parameters. So call the demangler again, with | |
569 | DMGL_ANSI only. | |
570 | ||
571 | Yes, printf_symbol_filtered() will again try to | |
572 | demangle the name on the fly, but the issue is that | |
573 | if cplus_demangle() fails here, it will fail there | |
574 | too. So we want to catch the failure (where DEMANGLED | |
575 | is NULL below) here, while we still have our hands on | |
576 | the function symbol.) */ | |
577 | char *demangled = cplus_demangle (funname, DMGL_ANSI); | |
c5aa993b | 578 | if (demangled == NULL) |
c5394b80 | 579 | /* If the demangler fails, try the demangled name from |
033a42c2 MK |
580 | the symbol table. That'll have parameters, but |
581 | that's preferable to displaying a mangled name. */ | |
de5ad195 | 582 | funname = SYMBOL_PRINT_NAME (func); |
f91162e1 MS |
583 | else |
584 | xfree (demangled); | |
c5aa993b | 585 | } |
c906108c SS |
586 | } |
587 | } | |
588 | else | |
589 | { | |
033a42c2 MK |
590 | struct minimal_symbol *msymbol = |
591 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
592 | ||
c906108c SS |
593 | if (msymbol != NULL) |
594 | { | |
22abf04a | 595 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
596 | funlang = SYMBOL_LANGUAGE (msymbol); |
597 | } | |
598 | } | |
599 | ||
033a42c2 MK |
600 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
601 | get_frame_pc (frame)); | |
c5394b80 | 602 | |
666547aa | 603 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
c5394b80 | 604 | |
0faf0076 | 605 | if (print_level) |
8b93c638 | 606 | { |
8b93c638 | 607 | ui_out_text (uiout, "#"); |
0faf0076 | 608 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 609 | frame_relative_level (frame)); |
8b93c638 | 610 | } |
c5394b80 | 611 | if (addressprint) |
033a42c2 | 612 | if (get_frame_pc (frame) != sal.pc || !sal.symtab |
0faf0076 | 613 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
614 | { |
615 | annotate_frame_address (); | |
033a42c2 | 616 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
8b93c638 JM |
617 | annotate_frame_address_end (); |
618 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
619 | } |
620 | annotate_frame_function_name (); | |
033a42c2 MK |
621 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
622 | funlang, DMGL_ANSI); | |
8b93c638 JM |
623 | ui_out_field_stream (uiout, "func", stb); |
624 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
625 | annotate_frame_args (); |
626 | ||
8b93c638 | 627 | ui_out_text (uiout, " ("); |
0faf0076 | 628 | if (print_args) |
c906108c | 629 | { |
c5394b80 | 630 | struct print_args_args args; |
d493eb33 | 631 | struct cleanup *args_list_chain; |
033a42c2 | 632 | args.frame = frame; |
c5394b80 JM |
633 | args.func = func; |
634 | args.stream = gdb_stdout; | |
68c81b54 | 635 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
c5394b80 | 636 | catch_errors (print_args_stub, &args, "", RETURN_MASK_ALL); |
033a42c2 MK |
637 | /* FIXME: ARGS must be a list. If one argument is a string it |
638 | will have " that will not be properly escaped. */ | |
666547aa | 639 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 640 | do_cleanups (args_list_chain); |
c5394b80 JM |
641 | QUIT; |
642 | } | |
8b93c638 | 643 | ui_out_text (uiout, ")"); |
c5394b80 JM |
644 | if (sal.symtab && sal.symtab->filename) |
645 | { | |
646 | annotate_frame_source_begin (); | |
8b93c638 JM |
647 | ui_out_wrap_hint (uiout, " "); |
648 | ui_out_text (uiout, " at "); | |
649 | annotate_frame_source_file (); | |
650 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
651 | if (ui_out_is_mi_like_p (uiout)) |
652 | { | |
653 | const char *fullname = symtab_to_fullname (sal.symtab); | |
654 | if (fullname != NULL) | |
655 | ui_out_field_string (uiout, "fullname", fullname); | |
656 | } | |
8b93c638 JM |
657 | annotate_frame_source_file_end (); |
658 | ui_out_text (uiout, ":"); | |
659 | annotate_frame_source_line (); | |
660 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
661 | annotate_frame_source_end (); |
662 | } | |
c906108c | 663 | |
c5394b80 | 664 | if (!funname || (!sal.symtab || !sal.symtab->filename)) |
c906108c | 665 | { |
a77053c2 | 666 | #ifdef PC_SOLIB |
033a42c2 | 667 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 668 | #else |
033a42c2 | 669 | char *lib = solib_address (get_frame_pc (frame)); |
a77053c2 | 670 | #endif |
c5394b80 | 671 | if (lib) |
c906108c | 672 | { |
c5394b80 | 673 | annotate_frame_where (); |
8b93c638 JM |
674 | ui_out_wrap_hint (uiout, " "); |
675 | ui_out_text (uiout, " from "); | |
676 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 677 | } |
c906108c | 678 | } |
e514a9d6 | 679 | |
666547aa | 680 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 681 | do_cleanups (list_chain); |
8b93c638 JM |
682 | ui_out_text (uiout, "\n"); |
683 | do_cleanups (old_chain); | |
c906108c SS |
684 | } |
685 | \f | |
033a42c2 MK |
686 | /* Show the frame info. If this is the tui, it will be shown in the |
687 | source display otherwise, nothing is done. */ | |
688 | ||
c906108c | 689 | void |
033a42c2 | 690 | show_stack_frame (struct frame_info *frame) |
c906108c | 691 | { |
c906108c | 692 | } |
c906108c | 693 | \f |
c5aa993b | 694 | |
033a42c2 MK |
695 | /* Read a frame specification in whatever the appropriate format is |
696 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
697 | specification is in any way invalid (so this function never returns | |
698 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
699 | the default selected frame was used. */ | |
c906108c | 700 | |
1c8831c5 AC |
701 | static struct frame_info * |
702 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
703 | int *selected_frame_p) | |
c906108c | 704 | { |
1c8831c5 AC |
705 | int numargs; |
706 | struct value *args[4]; | |
707 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 708 | |
1c8831c5 AC |
709 | if (frame_exp == NULL) |
710 | numargs = 0; | |
711 | else | |
c906108c | 712 | { |
1c8831c5 | 713 | char *addr_string; |
c906108c SS |
714 | struct cleanup *tmp_cleanup; |
715 | ||
1c8831c5 AC |
716 | numargs = 0; |
717 | while (1) | |
c906108c | 718 | { |
1c8831c5 AC |
719 | char *addr_string; |
720 | struct cleanup *cleanup; | |
721 | const char *p; | |
722 | ||
723 | /* Skip leading white space, bail of EOL. */ | |
724 | while (isspace (*frame_exp)) | |
725 | frame_exp++; | |
726 | if (!*frame_exp) | |
727 | break; | |
c906108c | 728 | |
1c8831c5 AC |
729 | /* Parse the argument, extract it, save it. */ |
730 | for (p = frame_exp; | |
731 | *p && !isspace (*p); | |
732 | p++); | |
733 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 734 | frame_exp = p; |
1c8831c5 AC |
735 | cleanup = make_cleanup (xfree, addr_string); |
736 | ||
737 | /* NOTE: Parse and evaluate expression, but do not use | |
738 | functions such as parse_and_eval_long or | |
739 | parse_and_eval_address to also extract the value. | |
740 | Instead value_as_long and value_as_address are used. | |
741 | This avoids problems with expressions that contain | |
742 | side-effects. */ | |
743 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 744 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
745 | args[numargs++] = parse_and_eval (addr_string); |
746 | ||
747 | do_cleanups (cleanup); | |
c906108c SS |
748 | } |
749 | } | |
750 | ||
1c8831c5 AC |
751 | /* If no args, default to the selected frame. */ |
752 | if (numargs == 0) | |
c906108c | 753 | { |
1c8831c5 AC |
754 | if (selected_frame_p != NULL) |
755 | (*selected_frame_p) = 1; | |
756 | return get_selected_frame (message); | |
757 | } | |
c906108c | 758 | |
1c8831c5 AC |
759 | /* None of the remaining use the selected frame. */ |
760 | if (selected_frame_p != NULL) | |
98f276a0 | 761 | (*selected_frame_p) = 0; |
c906108c | 762 | |
1c8831c5 AC |
763 | /* Assume the single arg[0] is an integer, and try using that to |
764 | select a frame relative to current. */ | |
765 | if (numargs == 1) | |
766 | { | |
767 | struct frame_info *fid; | |
768 | int level = value_as_long (args[0]); | |
769 | fid = find_relative_frame (get_current_frame (), &level); | |
770 | if (level == 0) | |
771 | /* find_relative_frame was successful */ | |
772 | return fid; | |
773 | } | |
c906108c | 774 | |
1c8831c5 AC |
775 | /* Convert each value into a corresponding address. */ |
776 | { | |
777 | int i; | |
778 | for (i = 0; i < numargs; i++) | |
779 | addrs[i] = value_as_address (args[0]); | |
780 | } | |
c5aa993b | 781 | |
1c8831c5 AC |
782 | /* Assume that the single arg[0] is an address, use that to identify |
783 | a frame with a matching ID. Should this also accept stack/pc or | |
784 | stack/pc/special. */ | |
785 | if (numargs == 1) | |
786 | { | |
787 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
788 | struct frame_info *fid; | |
789 | ||
1c8831c5 AC |
790 | /* If (s)he specifies the frame with an address, he deserves |
791 | what (s)he gets. Still, give the highest one that matches. | |
792 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
793 | know). */ | |
794 | for (fid = get_current_frame (); | |
795 | fid != NULL; | |
796 | fid = get_prev_frame (fid)) | |
797 | { | |
798 | if (frame_id_eq (id, get_frame_id (fid))) | |
799 | { | |
800 | while (frame_id_eq (id, frame_unwind_id (fid))) | |
801 | fid = get_prev_frame (fid); | |
802 | return fid; | |
803 | } | |
804 | } | |
c906108c SS |
805 | } |
806 | ||
1c8831c5 AC |
807 | /* We couldn't identify the frame as an existing frame, but |
808 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
809 | if (numargs == 1) |
810 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
811 | else if (numargs == 2) |
812 | return create_new_frame (addrs[0], addrs[1]); | |
813 | else | |
8a3fe4f8 | 814 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
815 | } |
816 | ||
9c833c82 | 817 | static struct frame_info * |
1c8831c5 AC |
818 | parse_frame_specification (char *frame_exp) |
819 | { | |
820 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
821 | } |
822 | ||
033a42c2 MK |
823 | /* Print verbosely the selected frame or the frame at address |
824 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
825 | |
826 | static void | |
fba45db2 | 827 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
828 | { |
829 | struct frame_info *fi; | |
830 | struct symtab_and_line sal; | |
831 | struct symbol *func; | |
832 | struct symtab *s; | |
833 | struct frame_info *calling_frame_info; | |
834 | int i, count, numregs; | |
835 | char *funname = 0; | |
836 | enum language funlang = language_unknown; | |
82de1e5b | 837 | const char *pc_regname; |
1c8831c5 | 838 | int selected_frame_p; |
7500260a | 839 | struct gdbarch *gdbarch; |
c906108c | 840 | |
1c8831c5 | 841 | fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p); |
c906108c | 842 | |
82de1e5b AC |
843 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
844 | is not a good name. */ | |
3e8c568d UW |
845 | if (gdbarch_pc_regnum (current_gdbarch) >= 0) |
846 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can | |
82de1e5b AC |
847 | easily not match that of the internal value returned by |
848 | get_frame_pc(). */ | |
3e8c568d UW |
849 | pc_regname = gdbarch_register_name (current_gdbarch, |
850 | gdbarch_pc_regnum (current_gdbarch)); | |
82de1e5b | 851 | else |
3e8c568d | 852 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
853 | architectures will often have a hardware register called "pc", |
854 | and that register's value, again, can easily not match | |
855 | get_frame_pc(). */ | |
856 | pc_regname = "pc"; | |
857 | ||
1058bca7 | 858 | find_frame_sal (fi, &sal); |
7500260a | 859 | gdbarch = get_frame_arch (fi); |
c906108c | 860 | func = get_frame_function (fi); |
1058bca7 | 861 | /* FIXME: cagney/2002-11-28: Why bother? Won't sal.symtab contain |
033a42c2 | 862 | the same value? */ |
bdd78e62 | 863 | s = find_pc_symtab (get_frame_pc (fi)); |
c906108c SS |
864 | if (func) |
865 | { | |
033a42c2 MK |
866 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, to |
867 | display the demangled name that we already have stored in the | |
868 | symbol table, but we stored a version with DMGL_PARAMS turned | |
869 | on, and here we don't want to display parameters. So call the | |
870 | demangler again, with DMGL_ANSI only. | |
871 | ||
872 | Yes, printf_symbol_filtered() will again try to demangle the | |
873 | name on the fly, but the issue is that if cplus_demangle() | |
874 | fails here, it will fail there too. So we want to catch the | |
875 | failure (where DEMANGLED is NULL below) here, while we still | |
876 | have our hands on the function symbol.) */ | |
22abf04a | 877 | funname = DEPRECATED_SYMBOL_NAME (func); |
c5aa993b JM |
878 | funlang = SYMBOL_LANGUAGE (func); |
879 | if (funlang == language_cplus) | |
880 | { | |
033a42c2 MK |
881 | char *demangled = cplus_demangle (funname, DMGL_ANSI); |
882 | /* If the demangler fails, try the demangled name from the | |
883 | symbol table. That'll have parameters, but that's | |
884 | preferable to displaying a mangled name. */ | |
c5aa993b | 885 | if (demangled == NULL) |
de5ad195 | 886 | funname = SYMBOL_PRINT_NAME (func); |
f91162e1 MS |
887 | else |
888 | xfree (demangled); | |
c5aa993b | 889 | } |
c906108c SS |
890 | } |
891 | else | |
892 | { | |
033a42c2 MK |
893 | struct minimal_symbol *msymbol; |
894 | ||
895 | msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c906108c SS |
896 | if (msymbol != NULL) |
897 | { | |
22abf04a | 898 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
899 | funlang = SYMBOL_LANGUAGE (msymbol); |
900 | } | |
901 | } | |
902 | calling_frame_info = get_prev_frame (fi); | |
903 | ||
1c8831c5 | 904 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 905 | { |
a3f17187 | 906 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 907 | frame_relative_level (fi)); |
c906108c SS |
908 | } |
909 | else | |
910 | { | |
a3f17187 | 911 | printf_filtered (_("Stack frame at ")); |
c906108c | 912 | } |
9c833c82 FF |
913 | deprecated_print_address_numeric (get_frame_base (fi), 1, gdb_stdout); |
914 | printf_filtered (":\n"); | |
82de1e5b | 915 | printf_filtered (" %s = ", pc_regname); |
66bf4b3a | 916 | deprecated_print_address_numeric (get_frame_pc (fi), 1, gdb_stdout); |
c906108c SS |
917 | |
918 | wrap_here (" "); | |
919 | if (funname) | |
920 | { | |
921 | printf_filtered (" in "); | |
922 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
923 | DMGL_ANSI | DMGL_PARAMS); | |
924 | } | |
925 | wrap_here (" "); | |
926 | if (sal.symtab) | |
927 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
928 | puts_filtered ("; "); | |
929 | wrap_here (" "); | |
82de1e5b | 930 | printf_filtered ("saved %s ", pc_regname); |
66bf4b3a | 931 | deprecated_print_address_numeric (frame_pc_unwind (fi), 1, gdb_stdout); |
c906108c SS |
932 | printf_filtered ("\n"); |
933 | ||
55feb689 DJ |
934 | if (calling_frame_info == NULL) |
935 | { | |
936 | enum unwind_stop_reason reason; | |
937 | ||
938 | reason = get_frame_unwind_stop_reason (fi); | |
939 | if (reason != UNWIND_NO_REASON) | |
940 | printf_filtered (_(" Outermost frame: %s\n"), | |
941 | frame_stop_reason_string (reason)); | |
942 | } | |
943 | ||
c906108c SS |
944 | if (calling_frame_info) |
945 | { | |
946 | printf_filtered (" called by frame at "); | |
66bf4b3a | 947 | deprecated_print_address_numeric (get_frame_base (calling_frame_info), |
8b36eed8 | 948 | 1, gdb_stdout); |
c906108c | 949 | } |
75e3c1f9 | 950 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
951 | puts_filtered (","); |
952 | wrap_here (" "); | |
75e3c1f9 | 953 | if (get_next_frame (fi)) |
c906108c SS |
954 | { |
955 | printf_filtered (" caller of frame at "); | |
66bf4b3a | 956 | deprecated_print_address_numeric (get_frame_base (get_next_frame (fi)), 1, |
8b36eed8 | 957 | gdb_stdout); |
c906108c | 958 | } |
75e3c1f9 | 959 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 960 | puts_filtered ("\n"); |
55feb689 | 961 | |
c906108c | 962 | if (s) |
1058bca7 AC |
963 | printf_filtered (" source language %s.\n", |
964 | language_str (s->language)); | |
c906108c | 965 | |
c906108c SS |
966 | { |
967 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 968 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
969 | /* Number of args for this frame, or -1 if unknown. */ |
970 | int numargs; | |
971 | ||
972 | if (arg_list == 0) | |
973 | printf_filtered (" Arglist at unknown address.\n"); | |
974 | else | |
975 | { | |
976 | printf_filtered (" Arglist at "); | |
66bf4b3a | 977 | deprecated_print_address_numeric (arg_list, 1, gdb_stdout); |
c906108c SS |
978 | printf_filtered (","); |
979 | ||
7500260a | 980 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
981 | { |
982 | numargs = -1; | |
983 | puts_filtered (" args: "); | |
984 | } | |
c906108c | 985 | else |
983a287a | 986 | { |
7500260a | 987 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
988 | gdb_assert (numargs >= 0); |
989 | if (numargs == 0) | |
990 | puts_filtered (" no args."); | |
991 | else if (numargs == 1) | |
992 | puts_filtered (" 1 arg: "); | |
993 | else | |
994 | printf_filtered (" %d args: ", numargs); | |
995 | } | |
c906108c SS |
996 | print_frame_args (func, fi, numargs, gdb_stdout); |
997 | puts_filtered ("\n"); | |
998 | } | |
999 | } | |
1000 | { | |
1001 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1002 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1003 | |
1004 | if (arg_list == 0) | |
1005 | printf_filtered (" Locals at unknown address,"); | |
1006 | else | |
1007 | { | |
1008 | printf_filtered (" Locals at "); | |
66bf4b3a | 1009 | deprecated_print_address_numeric (arg_list, 1, gdb_stdout); |
c906108c SS |
1010 | printf_filtered (","); |
1011 | } | |
1012 | } | |
1013 | ||
4f460812 AC |
1014 | /* Print as much information as possible on the location of all the |
1015 | registers. */ | |
1016 | { | |
1017 | enum lval_type lval; | |
1018 | int optimized; | |
1019 | CORE_ADDR addr; | |
1020 | int realnum; | |
1021 | int count; | |
1022 | int i; | |
1023 | int need_nl = 1; | |
1024 | ||
1025 | /* The sp is special; what's displayed isn't the save address, but | |
1026 | the value of the previous frame's sp. This is a legacy thing, | |
1027 | at one stage the frame cached the previous frame's SP instead | |
1028 | of its address, hence it was easiest to just display the cached | |
1029 | value. */ | |
7500260a | 1030 | if (gdbarch_sp_regnum (gdbarch) >= 0) |
4f460812 AC |
1031 | { |
1032 | /* Find out the location of the saved stack pointer with out | |
1033 | actually evaluating it. */ | |
7500260a | 1034 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1035 | &optimized, &lval, &addr, |
4f460812 AC |
1036 | &realnum, NULL); |
1037 | if (!optimized && lval == not_lval) | |
c906108c | 1038 | { |
10c42a71 | 1039 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 | 1040 | CORE_ADDR sp; |
7500260a | 1041 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1042 | &optimized, &lval, &addr, |
4f460812 | 1043 | &realnum, value); |
af1342ab AC |
1044 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1045 | stack pointer was packed as an unsigned integer. That | |
1046 | may or may not be valid. */ | |
3e8c568d | 1047 | sp = extract_unsigned_integer (value, |
7500260a UW |
1048 | register_size (gdbarch, |
1049 | gdbarch_sp_regnum (gdbarch))); | |
4f460812 | 1050 | printf_filtered (" Previous frame's sp is "); |
66bf4b3a | 1051 | deprecated_print_address_numeric (sp, 1, gdb_stdout); |
4f460812 AC |
1052 | printf_filtered ("\n"); |
1053 | need_nl = 0; | |
c906108c | 1054 | } |
4f460812 AC |
1055 | else if (!optimized && lval == lval_memory) |
1056 | { | |
1057 | printf_filtered (" Previous frame's sp at "); | |
66bf4b3a | 1058 | deprecated_print_address_numeric (addr, 1, gdb_stdout); |
4f460812 AC |
1059 | printf_filtered ("\n"); |
1060 | need_nl = 0; | |
1061 | } | |
1062 | else if (!optimized && lval == lval_register) | |
1063 | { | |
1064 | printf_filtered (" Previous frame's sp in %s\n", | |
7500260a | 1065 | gdbarch_register_name (gdbarch, realnum)); |
4f460812 AC |
1066 | need_nl = 0; |
1067 | } | |
1068 | /* else keep quiet. */ | |
1069 | } | |
1070 | ||
1071 | count = 0; | |
7500260a UW |
1072 | numregs = gdbarch_num_regs (gdbarch) |
1073 | + gdbarch_num_pseudo_regs (gdbarch); | |
4f460812 | 1074 | for (i = 0; i < numregs; i++) |
7500260a UW |
1075 | if (i != gdbarch_sp_regnum (gdbarch) |
1076 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) | |
4f460812 AC |
1077 | { |
1078 | /* Find out the location of the saved register without | |
1079 | fetching the corresponding value. */ | |
1080 | frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum, | |
1081 | NULL); | |
1082 | /* For moment, only display registers that were saved on the | |
1083 | stack. */ | |
1084 | if (!optimized && lval == lval_memory) | |
1085 | { | |
1086 | if (count == 0) | |
1087 | puts_filtered (" Saved registers:\n "); | |
1088 | else | |
1089 | puts_filtered (","); | |
1090 | wrap_here (" "); | |
c9f4d572 | 1091 | printf_filtered (" %s at ", |
7500260a | 1092 | gdbarch_register_name (gdbarch, i)); |
66bf4b3a | 1093 | deprecated_print_address_numeric (addr, 1, gdb_stdout); |
4f460812 AC |
1094 | count++; |
1095 | } | |
1096 | } | |
1097 | if (count || need_nl) | |
c906108c | 1098 | puts_filtered ("\n"); |
4f460812 | 1099 | } |
c906108c SS |
1100 | } |
1101 | ||
033a42c2 MK |
1102 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1103 | frames. */ | |
c906108c SS |
1104 | |
1105 | static void | |
fba45db2 | 1106 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1107 | { |
1108 | struct frame_info *fi; | |
52f0bd74 AC |
1109 | int count; |
1110 | int i; | |
1111 | struct frame_info *trailing; | |
1112 | int trailing_level; | |
c906108c SS |
1113 | |
1114 | if (!target_has_stack) | |
8a3fe4f8 | 1115 | error (_("No stack.")); |
c906108c | 1116 | |
033a42c2 MK |
1117 | /* The following code must do two things. First, it must set the |
1118 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1119 | printing. Second, it must set the variable count to the number |
1120 | of frames which we should print, or -1 if all of them. */ | |
1121 | trailing = get_current_frame (); | |
d082b2bb AC |
1122 | |
1123 | /* The target can be in a state where there is no valid frames | |
1124 | (e.g., just connected). */ | |
1125 | if (trailing == NULL) | |
8a3fe4f8 | 1126 | error (_("No stack.")); |
d082b2bb | 1127 | |
c906108c SS |
1128 | trailing_level = 0; |
1129 | if (count_exp) | |
1130 | { | |
bb518678 | 1131 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1132 | if (count < 0) |
1133 | { | |
1134 | struct frame_info *current; | |
1135 | ||
1136 | count = -count; | |
1137 | ||
1138 | current = trailing; | |
1139 | while (current && count--) | |
1140 | { | |
1141 | QUIT; | |
1142 | current = get_prev_frame (current); | |
1143 | } | |
c5aa993b | 1144 | |
033a42c2 MK |
1145 | /* Will stop when CURRENT reaches the top of the stack. |
1146 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1147 | while (current) |
1148 | { | |
1149 | QUIT; | |
1150 | trailing = get_prev_frame (trailing); | |
1151 | current = get_prev_frame (current); | |
1152 | trailing_level++; | |
1153 | } | |
c5aa993b | 1154 | |
c906108c SS |
1155 | count = -1; |
1156 | } | |
1157 | } | |
1158 | else | |
1159 | count = -1; | |
1160 | ||
1161 | if (info_verbose) | |
1162 | { | |
1163 | struct partial_symtab *ps; | |
c5aa993b | 1164 | |
033a42c2 MK |
1165 | /* Read in symbols for all of the frames. Need to do this in a |
1166 | separate pass so that "Reading in symbols for xxx" messages | |
1167 | don't screw up the appearance of the backtrace. Also if | |
1168 | people have strong opinions against reading symbols for | |
c5aa993b | 1169 | backtrace this may have to be an option. */ |
c906108c | 1170 | i = count; |
033a42c2 | 1171 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c SS |
1172 | { |
1173 | QUIT; | |
c4a09524 | 1174 | ps = find_pc_psymtab (get_frame_address_in_block (fi)); |
c906108c | 1175 | if (ps) |
033a42c2 | 1176 | PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */ |
c906108c SS |
1177 | } |
1178 | } | |
1179 | ||
033a42c2 | 1180 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1181 | { |
1182 | QUIT; | |
1183 | ||
1184 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1185 | means further attempts to backtrace would fail (on the other |
1186 | hand, perhaps the code does or could be fixed to make sure | |
1187 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1188 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1189 | if (show_locals) |
c5aa993b | 1190 | print_frame_local_vars (fi, 1, gdb_stdout); |
55feb689 DJ |
1191 | |
1192 | /* Save the last frame to check for error conditions. */ | |
1193 | trailing = fi; | |
c906108c SS |
1194 | } |
1195 | ||
1196 | /* If we've stopped before the end, mention that. */ | |
1197 | if (fi && from_tty) | |
a3f17187 | 1198 | printf_filtered (_("(More stack frames follow...)\n")); |
55feb689 DJ |
1199 | |
1200 | /* If we've run out of frames, and the reason appears to be an error | |
1201 | condition, print it. */ | |
1202 | if (fi == NULL && trailing != NULL) | |
1203 | { | |
1204 | enum unwind_stop_reason reason; | |
1205 | ||
1206 | reason = get_frame_unwind_stop_reason (trailing); | |
1207 | if (reason > UNWIND_FIRST_ERROR) | |
1208 | printf_filtered (_("Backtrace stopped: %s\n"), | |
1209 | frame_stop_reason_string (reason)); | |
1210 | } | |
c906108c SS |
1211 | } |
1212 | ||
d75e3c94 | 1213 | struct backtrace_command_args |
033a42c2 MK |
1214 | { |
1215 | char *count_exp; | |
1216 | int show_locals; | |
1217 | int from_tty; | |
1218 | }; | |
1219 | ||
1220 | /* Stub for catch_errors. */ | |
d75e3c94 | 1221 | |
d75e3c94 JJ |
1222 | static int |
1223 | backtrace_command_stub (void *data) | |
1224 | { | |
033a42c2 | 1225 | struct backtrace_command_args *args = data; |
d75e3c94 JJ |
1226 | backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty); |
1227 | return 0; | |
1228 | } | |
1229 | ||
c906108c | 1230 | static void |
fba45db2 | 1231 | backtrace_command (char *arg, int from_tty) |
c906108c | 1232 | { |
033a42c2 MK |
1233 | struct cleanup *old_chain = NULL; |
1234 | int fulltrace_arg = -1, arglen = 0, argc = 0; | |
d75e3c94 | 1235 | struct backtrace_command_args btargs; |
c906108c | 1236 | |
033a42c2 | 1237 | if (arg) |
c906108c | 1238 | { |
033a42c2 | 1239 | char **argv; |
c906108c SS |
1240 | int i; |
1241 | ||
c5aa993b | 1242 | argv = buildargv (arg); |
7a292a7a | 1243 | old_chain = make_cleanup_freeargv (argv); |
c906108c | 1244 | argc = 0; |
033a42c2 | 1245 | for (i = 0; argv[i]; i++) |
c5aa993b | 1246 | { |
745b8ca0 | 1247 | unsigned int j; |
c5aa993b | 1248 | |
033a42c2 | 1249 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1250 | argv[i][j] = tolower (argv[i][j]); |
1251 | ||
033a42c2 MK |
1252 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1253 | fulltrace_arg = argc; | |
c5aa993b JM |
1254 | else |
1255 | { | |
033a42c2 | 1256 | arglen += strlen (argv[i]); |
c5aa993b | 1257 | argc++; |
c5aa993b JM |
1258 | } |
1259 | } | |
033a42c2 MK |
1260 | arglen += argc; |
1261 | if (fulltrace_arg >= 0) | |
c5aa993b | 1262 | { |
033a42c2 | 1263 | if (arglen > 0) |
c5aa993b | 1264 | { |
033a42c2 MK |
1265 | arg = xmalloc (arglen + 1); |
1266 | memset (arg, 0, arglen + 1); | |
1267 | for (i = 0; i < (argc + 1); i++) | |
c5aa993b | 1268 | { |
033a42c2 | 1269 | if (i != fulltrace_arg) |
c5aa993b | 1270 | { |
033a42c2 MK |
1271 | strcat (arg, argv[i]); |
1272 | strcat (arg, " "); | |
c5aa993b JM |
1273 | } |
1274 | } | |
1275 | } | |
1276 | else | |
033a42c2 | 1277 | arg = NULL; |
c5aa993b | 1278 | } |
c906108c SS |
1279 | } |
1280 | ||
033a42c2 MK |
1281 | btargs.count_exp = arg; |
1282 | btargs.show_locals = (fulltrace_arg >= 0); | |
d75e3c94 | 1283 | btargs.from_tty = from_tty; |
033a42c2 | 1284 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1285 | |
033a42c2 MK |
1286 | if (fulltrace_arg >= 0 && arglen > 0) |
1287 | xfree (arg); | |
c906108c SS |
1288 | |
1289 | if (old_chain) | |
c5aa993b | 1290 | do_cleanups (old_chain); |
c906108c SS |
1291 | } |
1292 | ||
1293 | static void | |
fba45db2 | 1294 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1295 | { |
d75e3c94 JJ |
1296 | struct backtrace_command_args btargs; |
1297 | btargs.count_exp = arg; | |
1298 | btargs.show_locals = 1; | |
1299 | btargs.from_tty = from_tty; | |
033a42c2 | 1300 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1301 | } |
c906108c | 1302 | \f |
c5aa993b | 1303 | |
033a42c2 | 1304 | /* Print the local variables of a block B active in FRAME on STREAM. |
c906108c SS |
1305 | Return 1 if any variables were printed; 0 otherwise. */ |
1306 | ||
1307 | static int | |
033a42c2 | 1308 | print_block_frame_locals (struct block *b, struct frame_info *frame, |
de4f826b | 1309 | int num_tabs, struct ui_file *stream) |
c906108c | 1310 | { |
de4f826b | 1311 | struct dict_iterator iter; |
de4f826b DC |
1312 | struct symbol *sym; |
1313 | int values_printed = 0; | |
033a42c2 | 1314 | int j; |
c906108c | 1315 | |
de4f826b | 1316 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1317 | { |
c906108c SS |
1318 | switch (SYMBOL_CLASS (sym)) |
1319 | { | |
1320 | case LOC_LOCAL: | |
1321 | case LOC_REGISTER: | |
1322 | case LOC_STATIC: | |
1323 | case LOC_BASEREG: | |
4c2df51b | 1324 | case LOC_COMPUTED: |
c906108c SS |
1325 | values_printed = 1; |
1326 | for (j = 0; j < num_tabs; j++) | |
c5aa993b | 1327 | fputs_filtered ("\t", stream); |
de5ad195 | 1328 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c | 1329 | fputs_filtered (" = ", stream); |
033a42c2 | 1330 | print_variable_value (sym, frame, stream); |
c906108c SS |
1331 | fprintf_filtered (stream, "\n"); |
1332 | break; | |
1333 | ||
1334 | default: | |
1335 | /* Ignore symbols which are not locals. */ | |
1336 | break; | |
1337 | } | |
1338 | } | |
033a42c2 | 1339 | |
c906108c SS |
1340 | return values_printed; |
1341 | } | |
1342 | ||
1343 | /* Same, but print labels. */ | |
1344 | ||
1345 | static int | |
fba45db2 | 1346 | print_block_frame_labels (struct block *b, int *have_default, |
aa1ee363 | 1347 | struct ui_file *stream) |
c906108c | 1348 | { |
de4f826b | 1349 | struct dict_iterator iter; |
52f0bd74 AC |
1350 | struct symbol *sym; |
1351 | int values_printed = 0; | |
c906108c | 1352 | |
de4f826b | 1353 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1354 | { |
acd8056e | 1355 | if (strcmp (DEPRECATED_SYMBOL_NAME (sym), "default") == 0) |
c906108c SS |
1356 | { |
1357 | if (*have_default) | |
1358 | continue; | |
1359 | *have_default = 1; | |
1360 | } | |
1361 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1362 | { | |
1363 | struct symtab_and_line sal; | |
1364 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); | |
1365 | values_printed = 1; | |
de5ad195 | 1366 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1367 | if (addressprint) |
1368 | { | |
1369 | fprintf_filtered (stream, " "); | |
66bf4b3a | 1370 | deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, stream); |
c906108c SS |
1371 | } |
1372 | fprintf_filtered (stream, " in file %s, line %d\n", | |
1373 | sal.symtab->filename, sal.line); | |
1374 | } | |
1375 | } | |
033a42c2 | 1376 | |
c906108c SS |
1377 | return values_printed; |
1378 | } | |
1379 | ||
033a42c2 MK |
1380 | /* Print on STREAM all the local variables in frame FRAME, including |
1381 | all the blocks active in that frame at its current PC. | |
c906108c | 1382 | |
033a42c2 MK |
1383 | Returns 1 if the job was done, or 0 if nothing was printed because |
1384 | we have no info on the function running in FRAME. */ | |
c906108c SS |
1385 | |
1386 | static void | |
033a42c2 | 1387 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 1388 | struct ui_file *stream) |
c906108c | 1389 | { |
033a42c2 | 1390 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1391 | int values_printed = 0; |
c906108c SS |
1392 | |
1393 | if (block == 0) | |
1394 | { | |
1395 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1396 | return; | |
1397 | } | |
c5aa993b | 1398 | |
033a42c2 | 1399 | while (block) |
c906108c | 1400 | { |
033a42c2 | 1401 | if (print_block_frame_locals (block, frame, num_tabs, stream)) |
c906108c | 1402 | values_printed = 1; |
033a42c2 MK |
1403 | /* After handling the function's top-level block, stop. Don't |
1404 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1405 | if (BLOCK_FUNCTION (block)) |
1406 | break; | |
1407 | block = BLOCK_SUPERBLOCK (block); | |
1408 | } | |
1409 | ||
1410 | if (!values_printed) | |
033a42c2 | 1411 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
1412 | } |
1413 | ||
1414 | /* Same, but print labels. */ | |
1415 | ||
1416 | static void | |
033a42c2 | 1417 | print_frame_label_vars (struct frame_info *frame, int this_level_only, |
aa1ee363 | 1418 | struct ui_file *stream) |
c906108c | 1419 | { |
52f0bd74 | 1420 | struct blockvector *bl; |
033a42c2 | 1421 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1422 | int values_printed = 0; |
c906108c SS |
1423 | int index, have_default = 0; |
1424 | char *blocks_printed; | |
033a42c2 | 1425 | CORE_ADDR pc = get_frame_pc (frame); |
c906108c SS |
1426 | |
1427 | if (block == 0) | |
1428 | { | |
1429 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1430 | return; | |
1431 | } | |
1432 | ||
1433 | bl = blockvector_for_pc (BLOCK_END (block) - 4, &index); | |
033a42c2 | 1434 | blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
c906108c SS |
1435 | memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
1436 | ||
1437 | while (block != 0) | |
1438 | { | |
1439 | CORE_ADDR end = BLOCK_END (block) - 4; | |
1440 | int last_index; | |
1441 | ||
1442 | if (bl != blockvector_for_pc (end, &index)) | |
8a3fe4f8 | 1443 | error (_("blockvector blotch")); |
c906108c | 1444 | if (BLOCKVECTOR_BLOCK (bl, index) != block) |
8a3fe4f8 | 1445 | error (_("blockvector botch")); |
c906108c SS |
1446 | last_index = BLOCKVECTOR_NBLOCKS (bl); |
1447 | index += 1; | |
1448 | ||
1449 | /* Don't print out blocks that have gone by. */ | |
1450 | while (index < last_index | |
1451 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc) | |
1452 | index++; | |
1453 | ||
1454 | while (index < last_index | |
1455 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end) | |
1456 | { | |
1457 | if (blocks_printed[index] == 0) | |
1458 | { | |
033a42c2 MK |
1459 | if (print_block_frame_labels (BLOCKVECTOR_BLOCK (bl, index), |
1460 | &have_default, stream)) | |
c906108c SS |
1461 | values_printed = 1; |
1462 | blocks_printed[index] = 1; | |
1463 | } | |
1464 | index++; | |
1465 | } | |
1466 | if (have_default) | |
1467 | return; | |
1468 | if (values_printed && this_level_only) | |
1469 | return; | |
1470 | ||
033a42c2 MK |
1471 | /* After handling the function's top-level block, stop. Don't |
1472 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1473 | if (BLOCK_FUNCTION (block)) |
1474 | break; | |
1475 | block = BLOCK_SUPERBLOCK (block); | |
1476 | } | |
1477 | ||
1478 | if (!values_printed && !this_level_only) | |
033a42c2 | 1479 | fprintf_filtered (stream, _("No catches.\n")); |
c906108c SS |
1480 | } |
1481 | ||
c906108c | 1482 | void |
fba45db2 | 1483 | locals_info (char *args, int from_tty) |
c906108c | 1484 | { |
033a42c2 | 1485 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1486 | 0, gdb_stdout); |
c906108c SS |
1487 | } |
1488 | ||
1489 | static void | |
fba45db2 | 1490 | catch_info (char *ignore, int from_tty) |
c906108c | 1491 | { |
c5aa993b | 1492 | struct symtab_and_line *sal; |
c906108c | 1493 | |
c5aa993b | 1494 | /* Check for target support for exception handling */ |
c906108c SS |
1495 | sal = target_enable_exception_callback (EX_EVENT_CATCH, 1); |
1496 | if (sal) | |
1497 | { | |
033a42c2 MK |
1498 | /* Currently not handling this. Ideally, here we should |
1499 | interact with the C++ runtime system to find the list of | |
1500 | active handlers, etc. */ | |
1501 | fprintf_filtered (gdb_stdout, _("\ | |
1502 | Info catch not supported with this target/compiler combination.\n")); | |
c906108c SS |
1503 | } |
1504 | else | |
1505 | { | |
033a42c2 MK |
1506 | /* Assume g++ compiled code; old GDB 4.16 behaviour. */ |
1507 | print_frame_label_vars (get_selected_frame (_("No frame selected.")), | |
b04f3ab4 | 1508 | 0, gdb_stdout); |
c906108c SS |
1509 | } |
1510 | } | |
1511 | ||
1512 | static void | |
033a42c2 | 1513 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) |
c906108c | 1514 | { |
033a42c2 | 1515 | struct symbol *func = get_frame_function (frame); |
52f0bd74 | 1516 | struct block *b; |
de4f826b | 1517 | struct dict_iterator iter; |
52f0bd74 AC |
1518 | struct symbol *sym, *sym2; |
1519 | int values_printed = 0; | |
c906108c SS |
1520 | |
1521 | if (func == 0) | |
1522 | { | |
033a42c2 | 1523 | fprintf_filtered (stream, _("No symbol table info available.\n")); |
c906108c SS |
1524 | return; |
1525 | } | |
1526 | ||
1527 | b = SYMBOL_BLOCK_VALUE (func); | |
de4f826b | 1528 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1529 | { |
c906108c SS |
1530 | switch (SYMBOL_CLASS (sym)) |
1531 | { | |
1532 | case LOC_ARG: | |
1533 | case LOC_LOCAL_ARG: | |
1534 | case LOC_REF_ARG: | |
1535 | case LOC_REGPARM: | |
1536 | case LOC_REGPARM_ADDR: | |
1537 | case LOC_BASEREG_ARG: | |
4c2df51b | 1538 | case LOC_COMPUTED_ARG: |
c906108c | 1539 | values_printed = 1; |
de5ad195 | 1540 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1541 | fputs_filtered (" = ", stream); |
1542 | ||
1543 | /* We have to look up the symbol because arguments can have | |
1544 | two entries (one a parameter, one a local) and the one we | |
1545 | want is the local, which lookup_symbol will find for us. | |
1546 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1547 | small structure and gcc2 when the argument type is float | |
1548 | and it is passed as a double and converted to float by | |
1549 | the prologue (in the latter case the type of the LOC_ARG | |
1550 | symbol is double and the type of the LOC_LOCAL symbol is | |
1551 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
1552 | are not combined in symbol-reading. */ | |
1553 | ||
22abf04a | 1554 | sym2 = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
033a42c2 MK |
1555 | b, VAR_DOMAIN, NULL, NULL); |
1556 | print_variable_value (sym2, frame, stream); | |
c906108c SS |
1557 | fprintf_filtered (stream, "\n"); |
1558 | break; | |
1559 | ||
1560 | default: | |
1561 | /* Don't worry about things which aren't arguments. */ | |
1562 | break; | |
1563 | } | |
1564 | } | |
033a42c2 | 1565 | |
c906108c | 1566 | if (!values_printed) |
033a42c2 | 1567 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
1568 | } |
1569 | ||
1570 | void | |
fba45db2 | 1571 | args_info (char *ignore, int from_tty) |
c906108c | 1572 | { |
033a42c2 | 1573 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1574 | gdb_stdout); |
c906108c SS |
1575 | } |
1576 | ||
1577 | ||
1578 | static void | |
fba45db2 | 1579 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 1580 | { |
c5aa993b JM |
1581 | args_info (ignore, from_tty); |
1582 | locals_info (ignore, from_tty); | |
c906108c | 1583 | } |
c906108c | 1584 | \f |
c5aa993b | 1585 | |
033a42c2 MK |
1586 | /* Select frame FRAME. Also print the stack frame and show the source |
1587 | if this is the tui version. */ | |
bedfa57b | 1588 | static void |
033a42c2 | 1589 | select_and_print_frame (struct frame_info *frame) |
c906108c | 1590 | { |
033a42c2 MK |
1591 | select_frame (frame); |
1592 | if (frame) | |
1593 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 1594 | } |
c906108c | 1595 | \f |
c906108c | 1596 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
1597 | Can return zero under various legitimate circumstances. |
1598 | ||
1599 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
1600 | code address within the block returned. We use this to decide | |
1601 | which macros are in scope. */ | |
c906108c SS |
1602 | |
1603 | struct block * | |
ae767bfb | 1604 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c SS |
1605 | { |
1606 | if (!target_has_stack) | |
1607 | return 0; | |
1608 | ||
206415a3 | 1609 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
1610 | } |
1611 | ||
1612 | /* Find a frame a certain number of levels away from FRAME. | |
1613 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
1614 | Positive means go to earlier frames (up); negative, the reverse. | |
1615 | The int that contains the number of levels is counted toward | |
1616 | zero as the frames for those levels are found. | |
1617 | If the top or bottom frame is reached, that frame is returned, | |
1618 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
1619 | how much farther the original request asked to go. */ | |
1620 | ||
1621 | struct frame_info * | |
033a42c2 | 1622 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 1623 | { |
033a42c2 MK |
1624 | /* Going up is simple: just call get_prev_frame enough times or |
1625 | until the initial frame is reached. */ | |
c906108c SS |
1626 | while (*level_offset_ptr > 0) |
1627 | { | |
033a42c2 MK |
1628 | struct frame_info *prev = get_prev_frame (frame); |
1629 | if (!prev) | |
c906108c SS |
1630 | break; |
1631 | (*level_offset_ptr)--; | |
1632 | frame = prev; | |
1633 | } | |
033a42c2 | 1634 | |
c906108c | 1635 | /* Going down is just as simple. */ |
033a42c2 | 1636 | while (*level_offset_ptr < 0) |
c906108c | 1637 | { |
033a42c2 MK |
1638 | struct frame_info *next = get_next_frame (frame); |
1639 | if (!next) | |
1640 | break; | |
1641 | (*level_offset_ptr)++; | |
1642 | frame = next; | |
c906108c | 1643 | } |
033a42c2 | 1644 | |
c906108c SS |
1645 | return frame; |
1646 | } | |
1647 | ||
033a42c2 MK |
1648 | /* The "select_frame" command. With no argument this is a NOP. |
1649 | Select the frame at level LEVEL_EXP if it is a valid level. | |
1650 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
1651 | ||
1652 | See parse_frame_specification for more info on proper frame | |
1653 | expressions. */ | |
c906108c | 1654 | |
8b93c638 | 1655 | void |
fba45db2 | 1656 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 1657 | { |
1c8831c5 | 1658 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
1659 | } |
1660 | ||
033a42c2 MK |
1661 | /* The "frame" command. With no argument, print the selected frame |
1662 | briefly. With an argument, behave like select_frame and then print | |
1663 | the selected frame. */ | |
c906108c | 1664 | |
033a42c2 | 1665 | static void |
fba45db2 | 1666 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
1667 | { |
1668 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 1669 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1670 | } |
1671 | ||
033a42c2 | 1672 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 1673 | |
7a292a7a | 1674 | static void |
fba45db2 | 1675 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 1676 | { |
033a42c2 | 1677 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 1678 | } |
c906108c | 1679 | |
033a42c2 MK |
1680 | /* Select the frame up one or COUNT_EXP stack levels from the |
1681 | previously selected frame, and print it briefly. */ | |
c906108c | 1682 | |
c906108c | 1683 | static void |
fba45db2 | 1684 | up_silently_base (char *count_exp) |
c906108c | 1685 | { |
033a42c2 MK |
1686 | struct frame_info *frame; |
1687 | int count = 1; | |
1688 | ||
c906108c | 1689 | if (count_exp) |
bb518678 | 1690 | count = parse_and_eval_long (count_exp); |
c5aa993b | 1691 | |
033a42c2 MK |
1692 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1693 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 1694 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 1695 | select_frame (frame); |
c906108c SS |
1696 | } |
1697 | ||
1698 | static void | |
fba45db2 | 1699 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 1700 | { |
c5aa993b | 1701 | up_silently_base (count_exp); |
c906108c SS |
1702 | } |
1703 | ||
1704 | static void | |
fba45db2 | 1705 | up_command (char *count_exp, int from_tty) |
c906108c SS |
1706 | { |
1707 | up_silently_base (count_exp); | |
b04f3ab4 | 1708 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1709 | } |
1710 | ||
033a42c2 MK |
1711 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
1712 | selected frame, and print it briefly. */ | |
c906108c | 1713 | |
c906108c | 1714 | static void |
fba45db2 | 1715 | down_silently_base (char *count_exp) |
c906108c | 1716 | { |
52f0bd74 | 1717 | struct frame_info *frame; |
033a42c2 | 1718 | int count = -1; |
c906108c | 1719 | if (count_exp) |
bb518678 | 1720 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 1721 | |
033a42c2 MK |
1722 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1723 | if (count != 0 && count_exp == NULL) | |
c906108c | 1724 | { |
033a42c2 MK |
1725 | /* We only do this if COUNT_EXP is not specified. That way |
1726 | "down" means to really go down (and let me know if that is | |
1727 | impossible), but "down 9999" can be used to mean go all the | |
1728 | way down without getting an error. */ | |
c906108c | 1729 | |
033a42c2 | 1730 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
1731 | } |
1732 | ||
0f7d239c | 1733 | select_frame (frame); |
c906108c SS |
1734 | } |
1735 | ||
c906108c | 1736 | static void |
fba45db2 | 1737 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
1738 | { |
1739 | down_silently_base (count_exp); | |
c906108c SS |
1740 | } |
1741 | ||
1742 | static void | |
fba45db2 | 1743 | down_command (char *count_exp, int from_tty) |
c906108c SS |
1744 | { |
1745 | down_silently_base (count_exp); | |
b04f3ab4 | 1746 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1747 | } |
1748 | \f | |
033a42c2 | 1749 | |
8b93c638 | 1750 | void |
fba45db2 | 1751 | return_command (char *retval_exp, int from_tty) |
c906108c SS |
1752 | { |
1753 | struct symbol *thisfun; | |
3d6d86c6 | 1754 | struct value *return_value = NULL; |
fc70c2a0 | 1755 | const char *query_prefix = ""; |
c906108c | 1756 | |
b04f3ab4 | 1757 | thisfun = get_frame_function (get_selected_frame ("No selected frame.")); |
c906108c | 1758 | |
fc70c2a0 AC |
1759 | /* Compute the return value. If the computation triggers an error, |
1760 | let it bail. If the return type can't be handled, set | |
1761 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
1762 | message. */ | |
c906108c SS |
1763 | if (retval_exp) |
1764 | { | |
1765 | struct type *return_type = NULL; | |
1766 | ||
fc70c2a0 AC |
1767 | /* Compute the return value. Should the computation fail, this |
1768 | call throws an error. */ | |
c906108c SS |
1769 | return_value = parse_and_eval (retval_exp); |
1770 | ||
fc70c2a0 AC |
1771 | /* Cast return value to the return type of the function. Should |
1772 | the cast fail, this call throws an error. */ | |
c906108c SS |
1773 | if (thisfun != NULL) |
1774 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
1775 | if (return_type == NULL) | |
1776 | return_type = builtin_type_int; | |
3e9a183c | 1777 | CHECK_TYPEDEF (return_type); |
c906108c SS |
1778 | return_value = value_cast (return_type, return_value); |
1779 | ||
fc70c2a0 AC |
1780 | /* Make sure the value is fully evaluated. It may live in the |
1781 | stack frame we're about to pop. */ | |
d69fe07e | 1782 | if (value_lazy (return_value)) |
c906108c | 1783 | value_fetch_lazy (return_value); |
c906108c | 1784 | |
667e784f AC |
1785 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
1786 | /* If the return-type is "void", don't try to find the | |
1787 | return-value's location. However, do still evaluate the | |
1788 | return expression so that, even when the expression result | |
1789 | is discarded, side effects such as "return i++" still | |
033a42c2 | 1790 | occur. */ |
667e784f | 1791 | return_value = NULL; |
82585c72 | 1792 | else if (using_struct_return (return_type)) |
fc70c2a0 | 1793 | { |
667e784f AC |
1794 | query_prefix = "\ |
1795 | The location at which to store the function's return value is unknown.\n\ | |
1796 | If you continue, the return value that you specified will be ignored.\n"; | |
1797 | return_value = NULL; | |
fc70c2a0 | 1798 | } |
c906108c SS |
1799 | } |
1800 | ||
fc70c2a0 AC |
1801 | /* Does an interactive user really want to do this? Include |
1802 | information, such as how well GDB can handle the return value, in | |
1803 | the query message. */ | |
1804 | if (from_tty) | |
1805 | { | |
1806 | int confirmed; | |
1807 | if (thisfun == NULL) | |
e2e0b3e5 | 1808 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
1809 | query_prefix); |
1810 | else | |
e2e0b3e5 | 1811 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
1812 | SYMBOL_PRINT_NAME (thisfun)); |
1813 | if (!confirmed) | |
8a3fe4f8 | 1814 | error (_("Not confirmed")); |
fc70c2a0 | 1815 | } |
c906108c | 1816 | |
fc70c2a0 AC |
1817 | /* NOTE: cagney/2003-01-18: Is this silly? Rather than pop each |
1818 | frame in turn, should this code just go straight to the relevant | |
1819 | frame and pop that? */ | |
c906108c | 1820 | |
fc70c2a0 AC |
1821 | /* First discard all frames inner-to the selected frame (making the |
1822 | selected frame current). */ | |
1823 | { | |
b04f3ab4 | 1824 | struct frame_id selected_id = get_frame_id (get_selected_frame (NULL)); |
fc70c2a0 AC |
1825 | while (!frame_id_eq (selected_id, get_frame_id (get_current_frame ()))) |
1826 | { | |
1827 | if (frame_id_inner (selected_id, get_frame_id (get_current_frame ()))) | |
1828 | /* Caught in the safety net, oops! We've gone way past the | |
1829 | selected frame. */ | |
8a3fe4f8 | 1830 | error (_("Problem while popping stack frames (corrupt stack?)")); |
fc70c2a0 AC |
1831 | frame_pop (get_current_frame ()); |
1832 | } | |
1833 | } | |
c906108c | 1834 | |
fc70c2a0 AC |
1835 | /* Second discard the selected frame (which is now also the current |
1836 | frame). */ | |
dbe9fe58 | 1837 | frame_pop (get_current_frame ()); |
c906108c | 1838 | |
a1f5b845 | 1839 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
1840 | if (return_value != NULL) |
1841 | { | |
df407dfe | 1842 | struct type *return_type = value_type (return_value); |
7500260a UW |
1843 | struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ()); |
1844 | gdb_assert (gdbarch_return_value (gdbarch, return_type, NULL, NULL, NULL) | |
750eb019 | 1845 | == RETURN_VALUE_REGISTER_CONVENTION); |
7500260a | 1846 | gdbarch_return_value (gdbarch, return_type, |
594f7785 | 1847 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 1848 | value_contents (return_value) /*write*/); |
fc70c2a0 | 1849 | } |
1a2aab69 | 1850 | |
fc70c2a0 AC |
1851 | /* If we are at the end of a call dummy now, pop the dummy frame |
1852 | too. */ | |
e8bcf01f AC |
1853 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
1854 | frame_pop (get_current_frame ()); | |
1a2aab69 | 1855 | |
c906108c | 1856 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
1857 | if (from_tty) |
1858 | frame_command ("0", 1); | |
1859 | else | |
1860 | select_frame_command ("0", 0); | |
1861 | } | |
1862 | ||
033a42c2 MK |
1863 | /* Sets the scope to input function name, provided that the function |
1864 | is within the current stack frame */ | |
c906108c SS |
1865 | |
1866 | struct function_bounds | |
1867 | { | |
1868 | CORE_ADDR low, high; | |
1869 | }; | |
1870 | ||
1871 | static void | |
fba45db2 | 1872 | func_command (char *arg, int from_tty) |
c906108c | 1873 | { |
033a42c2 | 1874 | struct frame_info *frame; |
c906108c SS |
1875 | int found = 0; |
1876 | struct symtabs_and_lines sals; | |
1877 | int i; | |
1878 | int level = 1; | |
033a42c2 | 1879 | struct function_bounds *func_bounds = NULL; |
c906108c | 1880 | |
033a42c2 | 1881 | if (arg != NULL) |
c906108c SS |
1882 | return; |
1883 | ||
033a42c2 | 1884 | frame = parse_frame_specification ("0"); |
c906108c SS |
1885 | sals = decode_line_spec (arg, 1); |
1886 | func_bounds = (struct function_bounds *) xmalloc ( | |
1887 | sizeof (struct function_bounds) * sals.nelts); | |
1888 | for (i = 0; (i < sals.nelts && !found); i++) | |
1889 | { | |
033a42c2 MK |
1890 | if (sals.sals[i].pc == 0 |
1891 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
1892 | &func_bounds[i].low, | |
1893 | &func_bounds[i].high) == 0) | |
c906108c | 1894 | { |
033a42c2 | 1895 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
1896 | } |
1897 | } | |
1898 | ||
1899 | do | |
1900 | { | |
1901 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
1902 | found = (get_frame_pc (frame) >= func_bounds[i].low |
1903 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
1904 | if (!found) |
1905 | { | |
1906 | level = 1; | |
033a42c2 | 1907 | frame = find_relative_frame (frame, &level); |
c906108c SS |
1908 | } |
1909 | } | |
1910 | while (!found && level == 0); | |
1911 | ||
1912 | if (func_bounds) | |
b8c9b27d | 1913 | xfree (func_bounds); |
c906108c SS |
1914 | |
1915 | if (!found) | |
a3f17187 | 1916 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
206415a3 | 1917 | else if (frame != get_selected_frame (NULL)) |
033a42c2 | 1918 | select_and_print_frame (frame); |
c906108c SS |
1919 | } |
1920 | ||
1921 | /* Gets the language of the current frame. */ | |
1922 | ||
1923 | enum language | |
fba45db2 | 1924 | get_frame_language (void) |
c906108c | 1925 | { |
206415a3 | 1926 | struct frame_info *frame = deprecated_safe_get_selected_frame (); |
c5aa993b | 1927 | |
033a42c2 | 1928 | if (frame) |
c906108c | 1929 | { |
7ae4c3a5 | 1930 | /* We determine the current frame language by looking up its |
033a42c2 MK |
1931 | associated symtab. To retrieve this symtab, we use the frame |
1932 | PC. However we cannot use the frame PC as is, because it | |
1933 | usually points to the instruction following the "call", which | |
1934 | is sometimes the first instruction of another function. So | |
1935 | we rely on get_frame_address_in_block(), it provides us with | |
1936 | a PC that is guaranteed to be inside the frame's code | |
1937 | block. */ | |
1938 | CORE_ADDR pc = get_frame_address_in_block (frame); | |
1939 | struct symtab *s = find_pc_symtab (pc); | |
1940 | ||
c906108c | 1941 | if (s) |
033a42c2 | 1942 | return s->language; |
c906108c | 1943 | } |
c906108c | 1944 | |
033a42c2 | 1945 | return language_unknown; |
c906108c SS |
1946 | } |
1947 | \f | |
033a42c2 MK |
1948 | |
1949 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
1950 | void _initialize_stack (void); | |
1951 | ||
c906108c | 1952 | void |
fba45db2 | 1953 | _initialize_stack (void) |
c906108c | 1954 | { |
c5aa993b | 1955 | #if 0 |
c906108c SS |
1956 | backtrace_limit = 30; |
1957 | #endif | |
1958 | ||
1bedd215 AC |
1959 | add_com ("return", class_stack, return_command, _("\ |
1960 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
1961 | Control remains in the debugger, but when you continue\n\ |
1962 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
1963 | If an argument is given, it is an expression for the value to return.")); |
1964 | ||
1965 | add_com ("up", class_stack, up_command, _("\ | |
1966 | Select and print stack frame that called this one.\n\ | |
1967 | An argument says how many frames up to go.")); | |
1968 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
1969 | Same as the `up' command, but does not print anything.\n\ | |
1970 | This is useful in command scripts.")); | |
1971 | ||
1972 | add_com ("down", class_stack, down_command, _("\ | |
1973 | Select and print stack frame called by this one.\n\ | |
1974 | An argument says how many frames down to go.")); | |
c906108c SS |
1975 | add_com_alias ("do", "down", class_stack, 1); |
1976 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
1977 | add_com ("down-silently", class_support, down_silently_command, _("\ |
1978 | Same as the `down' command, but does not print anything.\n\ | |
1979 | This is useful in command scripts.")); | |
c906108c | 1980 | |
1bedd215 AC |
1981 | add_com ("frame", class_stack, frame_command, _("\ |
1982 | Select and print a stack frame.\n\ | |
c906108c SS |
1983 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ |
1984 | An argument specifies the frame to select.\n\ | |
1985 | It can be a stack frame number or the address of the frame.\n\ | |
1986 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 1987 | a command file or a user-defined command.")); |
c906108c SS |
1988 | |
1989 | add_com_alias ("f", "frame", class_stack, 1); | |
1990 | ||
1991 | if (xdb_commands) | |
1992 | { | |
c5aa993b | 1993 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 1994 | _("Print the current stack frame.\n")); |
c906108c SS |
1995 | add_com_alias ("V", "frame", class_stack, 1); |
1996 | } | |
1bedd215 AC |
1997 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
1998 | Select a stack frame without printing anything.\n\ | |
c906108c | 1999 | An argument specifies the frame to select.\n\ |
1bedd215 | 2000 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 2001 | |
1bedd215 AC |
2002 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2003 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
c906108c | 2004 | With a negative argument, print outermost -COUNT frames.\n\ |
1bedd215 | 2005 | Use of the 'full' qualifier also prints the values of the local variables.\n")); |
c906108c SS |
2006 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2007 | if (xdb_commands) | |
2008 | { | |
2009 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 AC |
2010 | add_com ("T", class_stack, backtrace_full_command, _("\ |
2011 | Print backtrace of all stack frames, or innermost COUNT frames \n\ | |
c906108c SS |
2012 | and the values of the local variables.\n\ |
2013 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2014 | Usage: T <count>\n")); |
c906108c SS |
2015 | } |
2016 | ||
2017 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2018 | add_info ("stack", backtrace_command, | |
1bedd215 | 2019 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2020 | add_info_alias ("s", "stack", 1); |
2021 | add_info ("frame", frame_info, | |
1bedd215 | 2022 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2023 | add_info_alias ("f", "frame", 1); |
2024 | add_info ("locals", locals_info, | |
1bedd215 | 2025 | _("Local variables of current stack frame.")); |
c906108c | 2026 | add_info ("args", args_info, |
1bedd215 | 2027 | _("Argument variables of current stack frame.")); |
c906108c | 2028 | if (xdb_commands) |
c5aa993b | 2029 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2030 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2031 | |
2032 | if (dbx_commands) | |
1bedd215 AC |
2033 | add_com ("func", class_stack, func_command, _("\ |
2034 | Select the stack frame that contains <func>.\n\ | |
2035 | Usage: func <name>\n")); | |
c906108c SS |
2036 | |
2037 | add_info ("catch", catch_info, | |
1bedd215 | 2038 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c SS |
2039 | |
2040 | #if 0 | |
1a966eab AC |
2041 | add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\ |
2042 | "Specify maximum number of frames for \"backtrace\" to print by default."), | |
c906108c | 2043 | &setlist); |
1bedd215 AC |
2044 | add_info ("backtrace-limit", backtrace_limit_info, _("\ |
2045 | The maximum number of frames for \"backtrace\" to print by default.")); | |
c906108c SS |
2046 | #endif |
2047 | } |