Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c AC |
2 | |
3 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, | |
0fd88904 AC |
4 | 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
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 JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c | 23 | |
c906108c | 24 | #include "defs.h" |
c906108c SS |
25 | #include "value.h" |
26 | #include "symtab.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "language.h" | |
30 | #include "frame.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "gdbcore.h" | |
33 | #include "target.h" | |
0378c332 | 34 | #include "source.h" |
c906108c SS |
35 | #include "breakpoint.h" |
36 | #include "demangle.h" | |
37 | #include "inferior.h" | |
38 | #include "annotate.h" | |
8b93c638 | 39 | #include "ui-out.h" |
fe898f56 | 40 | #include "block.h" |
b9362cc7 | 41 | #include "stack.h" |
de4f826b | 42 | #include "dictionary.h" |
60250e8b | 43 | #include "exceptions.h" |
898c62f5 | 44 | #include "reggroups.h" |
fc70c2a0 | 45 | #include "regcache.h" |
a77053c2 | 46 | #include "solib.h" |
033a42c2 | 47 | #include "valprint.h" |
c906108c | 48 | |
033a42c2 MK |
49 | #include "gdb_assert.h" |
50 | #include <ctype.h> | |
51 | #include "gdb_string.h" | |
c906108c | 52 | |
9a4105ab | 53 | void (*deprecated_selected_frame_level_changed_hook) (int); |
c906108c | 54 | |
a58dd373 | 55 | /* Prototypes for local functions. */ |
c906108c | 56 | |
d9fcf2fb JM |
57 | static void print_frame_local_vars (struct frame_info *, int, |
58 | struct ui_file *); | |
c906108c | 59 | |
033a42c2 MK |
60 | static void print_frame (struct frame_info *frame, int print_level, |
61 | enum print_what print_what, int print_args, | |
c5394b80 JM |
62 | struct symtab_and_line sal); |
63 | ||
c789492a FL |
64 | static void set_current_sal_from_frame (struct frame_info *, int); |
65 | ||
c906108c SS |
66 | /* Zero means do things normally; we are interacting directly with the |
67 | user. One means print the full filename and linenumber when a | |
68 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
69 | parse. Two means print similar annotations, but in many more | |
70 | cases and in a slightly different syntax. */ | |
71 | ||
72 | int annotation_level = 0; | |
c906108c | 73 | \f |
c5aa993b JM |
74 | |
75 | struct print_stack_frame_args | |
033a42c2 MK |
76 | { |
77 | struct frame_info *frame; | |
78 | int print_level; | |
79 | enum print_what print_what; | |
80 | int print_args; | |
81 | }; | |
82 | ||
83 | /* Show or print the frame arguments; stub for catch_errors. */ | |
84 | ||
c906108c | 85 | static int |
fba45db2 | 86 | print_stack_frame_stub (void *args) |
c906108c | 87 | { |
c789492a | 88 | struct print_stack_frame_args *p = args; |
033a42c2 | 89 | int center = (p->print_what == SRC_LINE || p->print_what == SRC_AND_LOC); |
c906108c | 90 | |
033a42c2 MK |
91 | print_frame_info (p->frame, p->print_level, p->print_what, p->print_args); |
92 | set_current_sal_from_frame (p->frame, center); | |
c906108c SS |
93 | return 0; |
94 | } | |
95 | ||
033a42c2 | 96 | /* Show or print a stack frame FRAME briefly. The output is format |
d762c46a AC |
97 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
98 | relative level, function name, argument list, and file name and | |
99 | line number. If the frame's PC is not at the beginning of the | |
100 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
101 | |
102 | void | |
033a42c2 | 103 | print_stack_frame (struct frame_info *frame, int print_level, |
0faf0076 | 104 | enum print_what print_what) |
c906108c SS |
105 | { |
106 | struct print_stack_frame_args args; | |
107 | ||
033a42c2 | 108 | args.frame = frame; |
0faf0076 AC |
109 | args.print_level = print_level; |
110 | args.print_what = print_what; | |
111 | args.print_args = 1; | |
c906108c | 112 | |
033a42c2 | 113 | catch_errors (print_stack_frame_stub, &args, "", RETURN_MASK_ALL); |
7789c6f5 | 114 | } |
c906108c | 115 | |
c5aa993b JM |
116 | struct print_args_args |
117 | { | |
c906108c | 118 | struct symbol *func; |
033a42c2 | 119 | struct frame_info *frame; |
d9fcf2fb | 120 | struct ui_file *stream; |
c906108c SS |
121 | }; |
122 | ||
033a42c2 | 123 | static int print_args_stub (void *args); |
c906108c | 124 | |
033a42c2 MK |
125 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
126 | the offset of the first nameless argument, and NUM is the number of | |
127 | nameless arguments to print. FIRST is nonzero if this is the first | |
128 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
129 | |
130 | static void | |
033a42c2 | 131 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
132 | int first, struct ui_file *stream) |
133 | { | |
134 | int i; | |
135 | CORE_ADDR argsaddr; | |
136 | long arg_value; | |
137 | ||
138 | for (i = 0; i < num; i++) | |
139 | { | |
140 | QUIT; | |
033a42c2 | 141 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
142 | if (!argsaddr) |
143 | return; | |
144 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
145 | if (!first) | |
146 | fprintf_filtered (stream, ", "); | |
147 | fprintf_filtered (stream, "%ld", arg_value); | |
148 | first = 0; | |
149 | start += sizeof (int); | |
150 | } | |
151 | } | |
152 | ||
033a42c2 MK |
153 | /* Print the arguments of frame FRAME on STREAM, given the function |
154 | FUNC running in that frame (as a symbol), where NUM is the number | |
155 | of arguments according to the stack frame (or -1 if the number of | |
156 | arguments is unknown). */ | |
8d3b0994 | 157 | |
033a42c2 MK |
158 | /* Note that currently the "number of argumentss according to the |
159 | stack frame" is only known on VAX where i refers to the "number of | |
160 | ints of argumentss according to the stack frame". */ | |
8d3b0994 AC |
161 | |
162 | static void | |
033a42c2 MK |
163 | print_frame_args (struct symbol *func, struct frame_info *frame, |
164 | int num, struct ui_file *stream) | |
8d3b0994 | 165 | { |
8d3b0994 | 166 | int first = 1; |
8d3b0994 | 167 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
168 | at the highest offset, or -1 if we haven't come to a stack |
169 | argument yet. */ | |
8d3b0994 | 170 | long highest_offset = -1; |
8d3b0994 AC |
171 | /* Number of ints of arguments that we have printed so far. */ |
172 | int args_printed = 0; | |
173 | struct cleanup *old_chain, *list_chain; | |
174 | struct ui_stream *stb; | |
175 | ||
176 | stb = ui_out_stream_new (uiout); | |
177 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
178 | ||
179 | if (func) | |
180 | { | |
033a42c2 MK |
181 | struct block *b = SYMBOL_BLOCK_VALUE (func); |
182 | struct dict_iterator iter; | |
183 | struct symbol *sym; | |
184 | struct value *val; | |
8d3b0994 | 185 | |
de4f826b | 186 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 AC |
187 | { |
188 | QUIT; | |
189 | ||
190 | /* Keep track of the highest stack argument offset seen, and | |
191 | skip over any kinds of symbols we don't care about. */ | |
192 | ||
193 | switch (SYMBOL_CLASS (sym)) | |
194 | { | |
195 | case LOC_ARG: | |
196 | case LOC_REF_ARG: | |
197 | { | |
198 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 199 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
200 | |
201 | /* Compute address of next argument by adding the size of | |
202 | this argument and rounding to an int boundary. */ | |
203 | current_offset = | |
204 | ((current_offset + arg_size + sizeof (int) - 1) | |
205 | & ~(sizeof (int) - 1)); | |
206 | ||
033a42c2 MK |
207 | /* If this is the highest offset seen yet, set |
208 | highest_offset. */ | |
8d3b0994 AC |
209 | if (highest_offset == -1 |
210 | || (current_offset > highest_offset)) | |
211 | highest_offset = current_offset; | |
212 | ||
033a42c2 MK |
213 | /* Add the number of ints we're about to print to |
214 | args_printed. */ | |
8d3b0994 AC |
215 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
216 | } | |
217 | ||
033a42c2 MK |
218 | /* We care about types of symbols, but don't need to |
219 | keep track of stack offsets in them. */ | |
8d3b0994 AC |
220 | case LOC_REGPARM: |
221 | case LOC_REGPARM_ADDR: | |
222 | case LOC_LOCAL_ARG: | |
223 | case LOC_BASEREG_ARG: | |
224 | case LOC_COMPUTED_ARG: | |
225 | break; | |
226 | ||
227 | /* Other types of symbols we just skip over. */ | |
228 | default: | |
229 | continue; | |
230 | } | |
231 | ||
232 | /* We have to look up the symbol because arguments can have | |
233 | two entries (one a parameter, one a local) and the one we | |
234 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 235 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
236 | small structure and gcc2 when the argument type is float |
237 | and it is passed as a double and converted to float by | |
238 | the prologue (in the latter case the type of the LOC_ARG | |
239 | symbol is double and the type of the LOC_LOCAL symbol is | |
240 | float). */ | |
033a42c2 MK |
241 | /* But if the parameter name is null, don't try it. Null |
242 | parameter names occur on the RS/6000, for traceback | |
243 | tables. FIXME, should we even print them? */ | |
8d3b0994 AC |
244 | |
245 | if (*DEPRECATED_SYMBOL_NAME (sym)) | |
246 | { | |
247 | struct symbol *nsym; | |
033a42c2 MK |
248 | nsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
249 | b, VAR_DOMAIN, NULL, NULL); | |
8d3b0994 AC |
250 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER) |
251 | { | |
033a42c2 MK |
252 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
253 | that it was passed on the stack and loaded into a | |
254 | register, or passed in a register and stored in a | |
255 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
256 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
257 | |
258 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
259 | |
260 | (1) Because find_saved_registers may be slow for | |
261 | remote debugging. | |
262 | ||
263 | (2) Because registers are often re-used and stack | |
264 | slots rarely (never?) are. Therefore using | |
265 | the stack slot is much less likely to print | |
266 | garbage. | |
8d3b0994 AC |
267 | |
268 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
269 | |
270 | (1) So that the backtrace prints the same value | |
271 | as "print foo". I see no compelling reason | |
272 | why this needs to be the case; having the | |
273 | backtrace print the value which was passed | |
274 | in, and "print foo" print the value as | |
275 | modified within the called function, makes | |
276 | perfect sense to me. | |
277 | ||
278 | Additional note: It might be nice if "info args" | |
279 | displayed both values. | |
280 | ||
281 | One more note: There is a case with SPARC | |
282 | structure passing where we need to use the | |
283 | LOC_REGISTER, but this is dealt with by creating | |
284 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
285 | |
286 | /* Leave sym (the LOC_ARG) alone. */ | |
287 | ; | |
288 | } | |
289 | else | |
290 | sym = nsym; | |
291 | } | |
292 | ||
293 | /* Print the current arg. */ | |
294 | if (!first) | |
295 | ui_out_text (uiout, ", "); | |
296 | ui_out_wrap_hint (uiout, " "); | |
297 | ||
298 | annotate_arg_begin (); | |
299 | ||
300 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
301 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym), | |
033a42c2 MK |
302 | SYMBOL_LANGUAGE (sym), |
303 | DMGL_PARAMS | DMGL_ANSI); | |
8d3b0994 AC |
304 | ui_out_field_stream (uiout, "name", stb); |
305 | annotate_arg_name_end (); | |
306 | ui_out_text (uiout, "="); | |
307 | ||
033a42c2 MK |
308 | /* Avoid value_print because it will deref ref parameters. |
309 | We just want to print their addresses. Print ??? for | |
310 | args whose address we do not know. We pass 2 as | |
311 | "recurse" to val_print because our standard indentation | |
312 | here is 4 spaces, and val_print indents 2 for each | |
313 | recurse. */ | |
314 | val = read_var_value (sym, frame); | |
8d3b0994 | 315 | |
df407dfe | 316 | annotate_arg_value (val == NULL ? NULL : value_type (val)); |
8d3b0994 AC |
317 | |
318 | if (val) | |
319 | { | |
806048c6 | 320 | common_val_print (val, stb->stream, 0, 0, 2, Val_no_prettyprint); |
8d3b0994 AC |
321 | ui_out_field_stream (uiout, "value", stb); |
322 | } | |
323 | else | |
324 | ui_out_text (uiout, "???"); | |
325 | ||
326 | /* Invoke ui_out_tuple_end. */ | |
327 | do_cleanups (list_chain); | |
328 | ||
329 | annotate_arg_end (); | |
330 | ||
331 | first = 0; | |
332 | } | |
333 | } | |
334 | ||
335 | /* Don't print nameless args in situations where we don't know | |
336 | enough about the stack to find them. */ | |
337 | if (num != -1) | |
338 | { | |
339 | long start; | |
340 | ||
341 | if (highest_offset == -1) | |
342 | start = FRAME_ARGS_SKIP; | |
343 | else | |
344 | start = highest_offset; | |
345 | ||
033a42c2 | 346 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
347 | first, stream); |
348 | } | |
033a42c2 | 349 | |
8d3b0994 AC |
350 | do_cleanups (old_chain); |
351 | } | |
352 | ||
033a42c2 | 353 | /* Stub for catch_errors. */ |
c906108c SS |
354 | |
355 | static int | |
4efb68b1 | 356 | print_args_stub (void *args) |
c906108c | 357 | { |
033a42c2 | 358 | struct print_args_args *p = args; |
c906108c | 359 | int numargs; |
c906108c | 360 | |
983a287a AC |
361 | if (FRAME_NUM_ARGS_P ()) |
362 | { | |
033a42c2 | 363 | numargs = FRAME_NUM_ARGS (p->frame); |
983a287a AC |
364 | gdb_assert (numargs >= 0); |
365 | } | |
366 | else | |
367 | numargs = -1; | |
033a42c2 | 368 | print_frame_args (p->func, p->frame, numargs, p->stream); |
c906108c SS |
369 | return 0; |
370 | } | |
371 | ||
033a42c2 MK |
372 | /* Set the current source and line to the location given by frame |
373 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
374 | line is in the center of the next 'list'. */ | |
c789492a FL |
375 | |
376 | static void | |
033a42c2 | 377 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
378 | { |
379 | struct symtab_and_line sal; | |
380 | ||
033a42c2 | 381 | find_frame_sal (frame, &sal); |
c789492a FL |
382 | if (sal.symtab) |
383 | { | |
384 | if (center) | |
385 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
386 | set_current_source_symtab_and_line (&sal); | |
387 | } | |
388 | } | |
389 | ||
033a42c2 MK |
390 | /* Print information about frame FRAME. The output is format according |
391 | to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of | |
392 | PRINT_WHAT is: | |
393 | ||
394 | SRC_LINE: Print only source line. | |
395 | LOCATION: Print only location. | |
396 | LOC_AND_SRC: Print location and source line. | |
397 | ||
398 | Used in "where" output, and to emit breakpoint or step | |
399 | messages. */ | |
c906108c | 400 | |
7789c6f5 | 401 | void |
033a42c2 | 402 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 403 | enum print_what print_what, int print_args) |
c906108c SS |
404 | { |
405 | struct symtab_and_line sal; | |
c5394b80 JM |
406 | int source_print; |
407 | int location_print; | |
c906108c | 408 | |
033a42c2 MK |
409 | if (get_frame_type (frame) == DUMMY_FRAME |
410 | || get_frame_type (frame) == SIGTRAMP_FRAME) | |
c906108c | 411 | { |
075559bc AC |
412 | struct cleanup *uiout_cleanup |
413 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 414 | |
033a42c2 MK |
415 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
416 | get_frame_pc (frame)); | |
6a3fe0a4 | 417 | |
c906108c | 418 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 419 | to list for this frame. */ |
0faf0076 | 420 | if (print_level) |
52c6a6ac JJ |
421 | { |
422 | ui_out_text (uiout, "#"); | |
0faf0076 | 423 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 424 | frame_relative_level (frame)); |
52c6a6ac | 425 | } |
075559bc | 426 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 427 | { |
075559bc | 428 | annotate_frame_address (); |
033a42c2 | 429 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
075559bc | 430 | annotate_frame_address_end (); |
52c6a6ac | 431 | } |
6a3fe0a4 | 432 | |
033a42c2 | 433 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
434 | { |
435 | annotate_function_call (); | |
436 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
437 | } | |
033a42c2 | 438 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
439 | { |
440 | annotate_signal_handler_caller (); | |
441 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
442 | } | |
443 | ui_out_text (uiout, "\n"); | |
c906108c | 444 | annotate_frame_end (); |
075559bc AC |
445 | |
446 | do_cleanups (uiout_cleanup); | |
c906108c SS |
447 | return; |
448 | } | |
449 | ||
033a42c2 MK |
450 | /* If FRAME is not the innermost frame, that normally means that |
451 | FRAME->pc points to *after* the call instruction, and we want to | |
452 | get the line containing the call, never the next line. But if | |
453 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
454 | next frame was not entered as the result of a call, and we want | |
455 | to get the line containing FRAME->pc. */ | |
456 | find_frame_sal (frame, &sal); | |
c906108c | 457 | |
0faf0076 AC |
458 | location_print = (print_what == LOCATION |
459 | || print_what == LOC_AND_ADDRESS | |
460 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
461 | |
462 | if (location_print || !sal.symtab) | |
033a42c2 | 463 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 464 | |
0faf0076 | 465 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 466 | |
c5394b80 JM |
467 | if (source_print && sal.symtab) |
468 | { | |
469 | int done = 0; | |
0faf0076 | 470 | int mid_statement = ((print_what == SRC_LINE) |
033a42c2 | 471 | && (get_frame_pc (frame) != sal.pc)); |
c5394b80 JM |
472 | |
473 | if (annotation_level) | |
474 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 475 | get_frame_pc (frame)); |
c5394b80 JM |
476 | if (!done) |
477 | { | |
9a4105ab | 478 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
479 | deprecated_print_frame_info_listing_hook (sal.symtab, |
480 | sal.line, | |
481 | sal.line + 1, 0); | |
ba4bbdcb | 482 | else |
c5394b80 | 483 | { |
ba4bbdcb KS |
484 | /* We used to do this earlier, but that is clearly |
485 | wrong. This function is used by many different | |
486 | parts of gdb, including normal_stop in infrun.c, | |
487 | which uses this to print out the current PC | |
488 | when we stepi/nexti into the middle of a source | |
489 | line. Only the command line really wants this | |
490 | behavior. Other UIs probably would like the | |
cbd3c883 | 491 | ability to decide for themselves if it is desired. */ |
ba4bbdcb KS |
492 | if (addressprint && mid_statement) |
493 | { | |
033a42c2 | 494 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
ba4bbdcb | 495 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
496 | } |
497 | ||
498 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 499 | } |
c5394b80 | 500 | } |
c5394b80 JM |
501 | } |
502 | ||
0faf0076 | 503 | if (print_what != LOCATION) |
033a42c2 | 504 | set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line); |
c5394b80 JM |
505 | |
506 | annotate_frame_end (); | |
507 | ||
508 | gdb_flush (gdb_stdout); | |
509 | } | |
510 | ||
511 | static void | |
033a42c2 MK |
512 | print_frame (struct frame_info *frame, int print_level, |
513 | enum print_what print_what, int print_args, | |
c5394b80 JM |
514 | struct symtab_and_line sal) |
515 | { | |
516 | struct symbol *func; | |
033a42c2 | 517 | char *funname = NULL; |
c5394b80 | 518 | enum language funlang = language_unknown; |
8b93c638 | 519 | struct ui_stream *stb; |
033a42c2 | 520 | struct cleanup *old_chain, *list_chain; |
8b93c638 JM |
521 | |
522 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 523 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
c5394b80 | 524 | |
033a42c2 | 525 | func = find_pc_function (get_frame_address_in_block (frame)); |
c906108c SS |
526 | if (func) |
527 | { | |
528 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
529 | function (when we are in the first function in a file which |
530 | is compiled without debugging symbols, the previous function | |
531 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
532 | that is supposed to tell us where the file with debugging |
533 | symbols ends has been truncated by ar because it is longer | |
534 | than 15 characters). This also occurs if the user uses asm() | |
535 | to create a function but not stabs for it (in a file compiled | |
536 | with -g). | |
c5aa993b JM |
537 | |
538 | So look in the minimal symbol tables as well, and if it comes | |
539 | up with a larger address for the function use that instead. | |
033a42c2 MK |
540 | I don't think this can ever cause any problems; there |
541 | shouldn't be any minimal symbols in the middle of a function; | |
542 | if this is ever changed many parts of GDB will need to be | |
543 | changed (and we'll create a find_pc_minimal_function or some | |
544 | such). */ | |
545 | ||
546 | struct minimal_symbol *msymbol = | |
547 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 548 | |
c906108c | 549 | if (msymbol != NULL |
c5aa993b | 550 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
551 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
552 | { | |
c906108c SS |
553 | /* We also don't know anything about the function besides |
554 | its address and name. */ | |
555 | func = 0; | |
22abf04a | 556 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
557 | funlang = SYMBOL_LANGUAGE (msymbol); |
558 | } | |
559 | else | |
560 | { | |
22abf04a | 561 | funname = DEPRECATED_SYMBOL_NAME (func); |
c906108c | 562 | funlang = SYMBOL_LANGUAGE (func); |
c5aa993b JM |
563 | if (funlang == language_cplus) |
564 | { | |
033a42c2 MK |
565 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
566 | to display the demangled name that we already have | |
567 | stored in the symbol table, but we stored a version | |
568 | with DMGL_PARAMS turned on, and here we don't want to | |
569 | display parameters. So call the demangler again, with | |
570 | DMGL_ANSI only. | |
571 | ||
572 | Yes, printf_symbol_filtered() will again try to | |
573 | demangle the name on the fly, but the issue is that | |
574 | if cplus_demangle() fails here, it will fail there | |
575 | too. So we want to catch the failure (where DEMANGLED | |
576 | is NULL below) here, while we still have our hands on | |
577 | the function symbol.) */ | |
578 | char *demangled = cplus_demangle (funname, DMGL_ANSI); | |
c5aa993b | 579 | if (demangled == NULL) |
c5394b80 | 580 | /* If the demangler fails, try the demangled name from |
033a42c2 MK |
581 | the symbol table. That'll have parameters, but |
582 | that's preferable to displaying a mangled name. */ | |
de5ad195 | 583 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b | 584 | } |
c906108c SS |
585 | } |
586 | } | |
587 | else | |
588 | { | |
033a42c2 MK |
589 | struct minimal_symbol *msymbol = |
590 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
591 | ||
c906108c SS |
592 | if (msymbol != NULL) |
593 | { | |
22abf04a | 594 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
595 | funlang = SYMBOL_LANGUAGE (msymbol); |
596 | } | |
597 | } | |
598 | ||
033a42c2 MK |
599 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
600 | get_frame_pc (frame)); | |
c5394b80 | 601 | |
666547aa | 602 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
c5394b80 | 603 | |
0faf0076 | 604 | if (print_level) |
8b93c638 | 605 | { |
8b93c638 | 606 | ui_out_text (uiout, "#"); |
0faf0076 | 607 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 608 | frame_relative_level (frame)); |
8b93c638 | 609 | } |
c5394b80 | 610 | if (addressprint) |
033a42c2 | 611 | if (get_frame_pc (frame) != sal.pc || !sal.symtab |
0faf0076 | 612 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
613 | { |
614 | annotate_frame_address (); | |
033a42c2 | 615 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
8b93c638 JM |
616 | annotate_frame_address_end (); |
617 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
618 | } |
619 | annotate_frame_function_name (); | |
033a42c2 MK |
620 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
621 | funlang, DMGL_ANSI); | |
8b93c638 JM |
622 | ui_out_field_stream (uiout, "func", stb); |
623 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
624 | annotate_frame_args (); |
625 | ||
8b93c638 | 626 | ui_out_text (uiout, " ("); |
0faf0076 | 627 | if (print_args) |
c906108c | 628 | { |
c5394b80 | 629 | struct print_args_args args; |
d493eb33 | 630 | struct cleanup *args_list_chain; |
033a42c2 | 631 | args.frame = frame; |
c5394b80 JM |
632 | args.func = func; |
633 | args.stream = gdb_stdout; | |
68c81b54 | 634 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
c5394b80 | 635 | catch_errors (print_args_stub, &args, "", RETURN_MASK_ALL); |
033a42c2 MK |
636 | /* FIXME: ARGS must be a list. If one argument is a string it |
637 | will have " that will not be properly escaped. */ | |
666547aa | 638 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 639 | do_cleanups (args_list_chain); |
c5394b80 JM |
640 | QUIT; |
641 | } | |
8b93c638 | 642 | ui_out_text (uiout, ")"); |
c5394b80 JM |
643 | if (sal.symtab && sal.symtab->filename) |
644 | { | |
645 | annotate_frame_source_begin (); | |
8b93c638 JM |
646 | ui_out_wrap_hint (uiout, " "); |
647 | ui_out_text (uiout, " at "); | |
648 | annotate_frame_source_file (); | |
649 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
650 | if (ui_out_is_mi_like_p (uiout)) |
651 | { | |
652 | const char *fullname = symtab_to_fullname (sal.symtab); | |
653 | if (fullname != NULL) | |
654 | ui_out_field_string (uiout, "fullname", fullname); | |
655 | } | |
8b93c638 JM |
656 | annotate_frame_source_file_end (); |
657 | ui_out_text (uiout, ":"); | |
658 | annotate_frame_source_line (); | |
659 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
660 | annotate_frame_source_end (); |
661 | } | |
c906108c | 662 | |
c5394b80 | 663 | if (!funname || (!sal.symtab || !sal.symtab->filename)) |
c906108c | 664 | { |
a77053c2 | 665 | #ifdef PC_SOLIB |
033a42c2 | 666 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 667 | #else |
033a42c2 | 668 | char *lib = solib_address (get_frame_pc (frame)); |
a77053c2 | 669 | #endif |
c5394b80 | 670 | if (lib) |
c906108c | 671 | { |
c5394b80 | 672 | annotate_frame_where (); |
8b93c638 JM |
673 | ui_out_wrap_hint (uiout, " "); |
674 | ui_out_text (uiout, " from "); | |
675 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 676 | } |
c906108c | 677 | } |
e514a9d6 | 678 | |
666547aa | 679 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 680 | do_cleanups (list_chain); |
8b93c638 JM |
681 | ui_out_text (uiout, "\n"); |
682 | do_cleanups (old_chain); | |
c906108c SS |
683 | } |
684 | \f | |
033a42c2 MK |
685 | /* Show the frame info. If this is the tui, it will be shown in the |
686 | source display otherwise, nothing is done. */ | |
687 | ||
c906108c | 688 | void |
033a42c2 | 689 | show_stack_frame (struct frame_info *frame) |
c906108c | 690 | { |
c906108c | 691 | } |
c906108c | 692 | \f |
c5aa993b | 693 | |
033a42c2 MK |
694 | /* Read a frame specification in whatever the appropriate format is |
695 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
696 | specification is in any way invalid (so this function never returns | |
697 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
698 | the default selected frame was used. */ | |
c906108c | 699 | |
1c8831c5 AC |
700 | static struct frame_info * |
701 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
702 | int *selected_frame_p) | |
c906108c | 703 | { |
1c8831c5 AC |
704 | int numargs; |
705 | struct value *args[4]; | |
706 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 707 | |
1c8831c5 AC |
708 | if (frame_exp == NULL) |
709 | numargs = 0; | |
710 | else | |
c906108c | 711 | { |
1c8831c5 | 712 | char *addr_string; |
c906108c SS |
713 | struct cleanup *tmp_cleanup; |
714 | ||
1c8831c5 AC |
715 | numargs = 0; |
716 | while (1) | |
c906108c | 717 | { |
1c8831c5 AC |
718 | char *addr_string; |
719 | struct cleanup *cleanup; | |
720 | const char *p; | |
721 | ||
722 | /* Skip leading white space, bail of EOL. */ | |
723 | while (isspace (*frame_exp)) | |
724 | frame_exp++; | |
725 | if (!*frame_exp) | |
726 | break; | |
c906108c | 727 | |
1c8831c5 AC |
728 | /* Parse the argument, extract it, save it. */ |
729 | for (p = frame_exp; | |
730 | *p && !isspace (*p); | |
731 | p++); | |
732 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 733 | frame_exp = p; |
1c8831c5 AC |
734 | cleanup = make_cleanup (xfree, addr_string); |
735 | ||
736 | /* NOTE: Parse and evaluate expression, but do not use | |
737 | functions such as parse_and_eval_long or | |
738 | parse_and_eval_address to also extract the value. | |
739 | Instead value_as_long and value_as_address are used. | |
740 | This avoids problems with expressions that contain | |
741 | side-effects. */ | |
742 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 743 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
744 | args[numargs++] = parse_and_eval (addr_string); |
745 | ||
746 | do_cleanups (cleanup); | |
c906108c SS |
747 | } |
748 | } | |
749 | ||
1c8831c5 AC |
750 | /* If no args, default to the selected frame. */ |
751 | if (numargs == 0) | |
c906108c | 752 | { |
1c8831c5 AC |
753 | if (selected_frame_p != NULL) |
754 | (*selected_frame_p) = 1; | |
755 | return get_selected_frame (message); | |
756 | } | |
c906108c | 757 | |
1c8831c5 AC |
758 | /* None of the remaining use the selected frame. */ |
759 | if (selected_frame_p != NULL) | |
98f276a0 | 760 | (*selected_frame_p) = 0; |
c906108c | 761 | |
1c8831c5 AC |
762 | /* Assume the single arg[0] is an integer, and try using that to |
763 | select a frame relative to current. */ | |
764 | if (numargs == 1) | |
765 | { | |
766 | struct frame_info *fid; | |
767 | int level = value_as_long (args[0]); | |
768 | fid = find_relative_frame (get_current_frame (), &level); | |
769 | if (level == 0) | |
770 | /* find_relative_frame was successful */ | |
771 | return fid; | |
772 | } | |
c906108c | 773 | |
1c8831c5 AC |
774 | /* Convert each value into a corresponding address. */ |
775 | { | |
776 | int i; | |
777 | for (i = 0; i < numargs; i++) | |
778 | addrs[i] = value_as_address (args[0]); | |
779 | } | |
c5aa993b | 780 | |
1c8831c5 AC |
781 | /* Assume that the single arg[0] is an address, use that to identify |
782 | a frame with a matching ID. Should this also accept stack/pc or | |
783 | stack/pc/special. */ | |
784 | if (numargs == 1) | |
785 | { | |
786 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
787 | struct frame_info *fid; | |
788 | ||
1c8831c5 AC |
789 | /* If (s)he specifies the frame with an address, he deserves |
790 | what (s)he gets. Still, give the highest one that matches. | |
791 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
792 | know). */ | |
793 | for (fid = get_current_frame (); | |
794 | fid != NULL; | |
795 | fid = get_prev_frame (fid)) | |
796 | { | |
797 | if (frame_id_eq (id, get_frame_id (fid))) | |
798 | { | |
799 | while (frame_id_eq (id, frame_unwind_id (fid))) | |
800 | fid = get_prev_frame (fid); | |
801 | return fid; | |
802 | } | |
803 | } | |
c906108c SS |
804 | } |
805 | ||
1c8831c5 AC |
806 | /* We couldn't identify the frame as an existing frame, but |
807 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
808 | if (numargs == 1) |
809 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
810 | else if (numargs == 2) |
811 | return create_new_frame (addrs[0], addrs[1]); | |
812 | else | |
8a3fe4f8 | 813 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
814 | } |
815 | ||
9c833c82 | 816 | static struct frame_info * |
1c8831c5 AC |
817 | parse_frame_specification (char *frame_exp) |
818 | { | |
819 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
820 | } |
821 | ||
033a42c2 MK |
822 | /* Print verbosely the selected frame or the frame at address |
823 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
824 | |
825 | static void | |
fba45db2 | 826 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
827 | { |
828 | struct frame_info *fi; | |
829 | struct symtab_and_line sal; | |
830 | struct symbol *func; | |
831 | struct symtab *s; | |
832 | struct frame_info *calling_frame_info; | |
833 | int i, count, numregs; | |
834 | char *funname = 0; | |
835 | enum language funlang = language_unknown; | |
82de1e5b | 836 | const char *pc_regname; |
1c8831c5 | 837 | int selected_frame_p; |
c906108c | 838 | |
1c8831c5 | 839 | fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p); |
c906108c | 840 | |
82de1e5b AC |
841 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
842 | is not a good name. */ | |
843 | if (PC_REGNUM >= 0) | |
844 | /* OK, this is weird. The PC_REGNUM hardware register's value can | |
845 | easily not match that of the internal value returned by | |
846 | get_frame_pc(). */ | |
847 | pc_regname = REGISTER_NAME (PC_REGNUM); | |
848 | else | |
849 | /* But then, this is weird to. Even without PC_REGNUM, an | |
850 | architectures will often have a hardware register called "pc", | |
851 | and that register's value, again, can easily not match | |
852 | get_frame_pc(). */ | |
853 | pc_regname = "pc"; | |
854 | ||
1058bca7 | 855 | find_frame_sal (fi, &sal); |
c906108c | 856 | func = get_frame_function (fi); |
1058bca7 | 857 | /* FIXME: cagney/2002-11-28: Why bother? Won't sal.symtab contain |
033a42c2 | 858 | the same value? */ |
bdd78e62 | 859 | s = find_pc_symtab (get_frame_pc (fi)); |
c906108c SS |
860 | if (func) |
861 | { | |
033a42c2 MK |
862 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, to |
863 | display the demangled name that we already have stored in the | |
864 | symbol table, but we stored a version with DMGL_PARAMS turned | |
865 | on, and here we don't want to display parameters. So call the | |
866 | demangler again, with DMGL_ANSI only. | |
867 | ||
868 | Yes, printf_symbol_filtered() will again try to demangle the | |
869 | name on the fly, but the issue is that if cplus_demangle() | |
870 | fails here, it will fail there too. So we want to catch the | |
871 | failure (where DEMANGLED is NULL below) here, while we still | |
872 | have our hands on the function symbol.) */ | |
22abf04a | 873 | funname = DEPRECATED_SYMBOL_NAME (func); |
c5aa993b JM |
874 | funlang = SYMBOL_LANGUAGE (func); |
875 | if (funlang == language_cplus) | |
876 | { | |
033a42c2 MK |
877 | char *demangled = cplus_demangle (funname, DMGL_ANSI); |
878 | /* If the demangler fails, try the demangled name from the | |
879 | symbol table. That'll have parameters, but that's | |
880 | preferable to displaying a mangled name. */ | |
c5aa993b | 881 | if (demangled == NULL) |
de5ad195 | 882 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b | 883 | } |
c906108c SS |
884 | } |
885 | else | |
886 | { | |
033a42c2 MK |
887 | struct minimal_symbol *msymbol; |
888 | ||
889 | msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c906108c SS |
890 | if (msymbol != NULL) |
891 | { | |
22abf04a | 892 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
893 | funlang = SYMBOL_LANGUAGE (msymbol); |
894 | } | |
895 | } | |
896 | calling_frame_info = get_prev_frame (fi); | |
897 | ||
1c8831c5 | 898 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 899 | { |
a3f17187 | 900 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 901 | frame_relative_level (fi)); |
c906108c SS |
902 | } |
903 | else | |
904 | { | |
a3f17187 | 905 | printf_filtered (_("Stack frame at ")); |
c906108c | 906 | } |
9c833c82 FF |
907 | deprecated_print_address_numeric (get_frame_base (fi), 1, gdb_stdout); |
908 | printf_filtered (":\n"); | |
82de1e5b | 909 | printf_filtered (" %s = ", pc_regname); |
66bf4b3a | 910 | deprecated_print_address_numeric (get_frame_pc (fi), 1, gdb_stdout); |
c906108c SS |
911 | |
912 | wrap_here (" "); | |
913 | if (funname) | |
914 | { | |
915 | printf_filtered (" in "); | |
916 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
917 | DMGL_ANSI | DMGL_PARAMS); | |
918 | } | |
919 | wrap_here (" "); | |
920 | if (sal.symtab) | |
921 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
922 | puts_filtered ("; "); | |
923 | wrap_here (" "); | |
82de1e5b | 924 | printf_filtered ("saved %s ", pc_regname); |
66bf4b3a | 925 | deprecated_print_address_numeric (frame_pc_unwind (fi), 1, gdb_stdout); |
c906108c SS |
926 | printf_filtered ("\n"); |
927 | ||
c906108c SS |
928 | if (calling_frame_info) |
929 | { | |
930 | printf_filtered (" called by frame at "); | |
66bf4b3a | 931 | deprecated_print_address_numeric (get_frame_base (calling_frame_info), |
8b36eed8 | 932 | 1, gdb_stdout); |
c906108c | 933 | } |
75e3c1f9 | 934 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
935 | puts_filtered (","); |
936 | wrap_here (" "); | |
75e3c1f9 | 937 | if (get_next_frame (fi)) |
c906108c SS |
938 | { |
939 | printf_filtered (" caller of frame at "); | |
66bf4b3a | 940 | deprecated_print_address_numeric (get_frame_base (get_next_frame (fi)), 1, |
8b36eed8 | 941 | gdb_stdout); |
c906108c | 942 | } |
75e3c1f9 | 943 | if (get_next_frame (fi) || calling_frame_info) |
c906108c SS |
944 | puts_filtered ("\n"); |
945 | if (s) | |
1058bca7 AC |
946 | printf_filtered (" source language %s.\n", |
947 | language_str (s->language)); | |
c906108c | 948 | |
c906108c SS |
949 | { |
950 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 951 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
952 | /* Number of args for this frame, or -1 if unknown. */ |
953 | int numargs; | |
954 | ||
955 | if (arg_list == 0) | |
956 | printf_filtered (" Arglist at unknown address.\n"); | |
957 | else | |
958 | { | |
959 | printf_filtered (" Arglist at "); | |
66bf4b3a | 960 | deprecated_print_address_numeric (arg_list, 1, gdb_stdout); |
c906108c SS |
961 | printf_filtered (","); |
962 | ||
983a287a AC |
963 | if (!FRAME_NUM_ARGS_P ()) |
964 | { | |
965 | numargs = -1; | |
966 | puts_filtered (" args: "); | |
967 | } | |
c906108c | 968 | else |
983a287a AC |
969 | { |
970 | numargs = FRAME_NUM_ARGS (fi); | |
971 | gdb_assert (numargs >= 0); | |
972 | if (numargs == 0) | |
973 | puts_filtered (" no args."); | |
974 | else if (numargs == 1) | |
975 | puts_filtered (" 1 arg: "); | |
976 | else | |
977 | printf_filtered (" %d args: ", numargs); | |
978 | } | |
c906108c SS |
979 | print_frame_args (func, fi, numargs, gdb_stdout); |
980 | puts_filtered ("\n"); | |
981 | } | |
982 | } | |
983 | { | |
984 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 985 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
986 | |
987 | if (arg_list == 0) | |
988 | printf_filtered (" Locals at unknown address,"); | |
989 | else | |
990 | { | |
991 | printf_filtered (" Locals at "); | |
66bf4b3a | 992 | deprecated_print_address_numeric (arg_list, 1, gdb_stdout); |
c906108c SS |
993 | printf_filtered (","); |
994 | } | |
995 | } | |
996 | ||
4f460812 AC |
997 | /* Print as much information as possible on the location of all the |
998 | registers. */ | |
999 | { | |
1000 | enum lval_type lval; | |
1001 | int optimized; | |
1002 | CORE_ADDR addr; | |
1003 | int realnum; | |
1004 | int count; | |
1005 | int i; | |
1006 | int need_nl = 1; | |
1007 | ||
1008 | /* The sp is special; what's displayed isn't the save address, but | |
1009 | the value of the previous frame's sp. This is a legacy thing, | |
1010 | at one stage the frame cached the previous frame's SP instead | |
1011 | of its address, hence it was easiest to just display the cached | |
1012 | value. */ | |
1013 | if (SP_REGNUM >= 0) | |
1014 | { | |
1015 | /* Find out the location of the saved stack pointer with out | |
1016 | actually evaluating it. */ | |
1017 | frame_register_unwind (fi, SP_REGNUM, &optimized, &lval, &addr, | |
1018 | &realnum, NULL); | |
1019 | if (!optimized && lval == not_lval) | |
c906108c | 1020 | { |
10c42a71 | 1021 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 AC |
1022 | CORE_ADDR sp; |
1023 | frame_register_unwind (fi, SP_REGNUM, &optimized, &lval, &addr, | |
1024 | &realnum, value); | |
af1342ab AC |
1025 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1026 | stack pointer was packed as an unsigned integer. That | |
1027 | may or may not be valid. */ | |
3acba339 | 1028 | sp = extract_unsigned_integer (value, register_size (current_gdbarch, SP_REGNUM)); |
4f460812 | 1029 | printf_filtered (" Previous frame's sp is "); |
66bf4b3a | 1030 | deprecated_print_address_numeric (sp, 1, gdb_stdout); |
4f460812 AC |
1031 | printf_filtered ("\n"); |
1032 | need_nl = 0; | |
c906108c | 1033 | } |
4f460812 AC |
1034 | else if (!optimized && lval == lval_memory) |
1035 | { | |
1036 | printf_filtered (" Previous frame's sp at "); | |
66bf4b3a | 1037 | deprecated_print_address_numeric (addr, 1, gdb_stdout); |
4f460812 AC |
1038 | printf_filtered ("\n"); |
1039 | need_nl = 0; | |
1040 | } | |
1041 | else if (!optimized && lval == lval_register) | |
1042 | { | |
1043 | printf_filtered (" Previous frame's sp in %s\n", | |
1044 | REGISTER_NAME (realnum)); | |
1045 | need_nl = 0; | |
1046 | } | |
1047 | /* else keep quiet. */ | |
1048 | } | |
1049 | ||
1050 | count = 0; | |
1051 | numregs = NUM_REGS + NUM_PSEUDO_REGS; | |
1052 | for (i = 0; i < numregs; i++) | |
898c62f5 DJ |
1053 | if (i != SP_REGNUM |
1054 | && gdbarch_register_reggroup_p (current_gdbarch, i, all_reggroup)) | |
4f460812 AC |
1055 | { |
1056 | /* Find out the location of the saved register without | |
1057 | fetching the corresponding value. */ | |
1058 | frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum, | |
1059 | NULL); | |
1060 | /* For moment, only display registers that were saved on the | |
1061 | stack. */ | |
1062 | if (!optimized && lval == lval_memory) | |
1063 | { | |
1064 | if (count == 0) | |
1065 | puts_filtered (" Saved registers:\n "); | |
1066 | else | |
1067 | puts_filtered (","); | |
1068 | wrap_here (" "); | |
1069 | printf_filtered (" %s at ", REGISTER_NAME (i)); | |
66bf4b3a | 1070 | deprecated_print_address_numeric (addr, 1, gdb_stdout); |
4f460812 AC |
1071 | count++; |
1072 | } | |
1073 | } | |
1074 | if (count || need_nl) | |
c906108c | 1075 | puts_filtered ("\n"); |
4f460812 | 1076 | } |
c906108c SS |
1077 | } |
1078 | ||
033a42c2 MK |
1079 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1080 | frames. */ | |
c906108c SS |
1081 | |
1082 | static void | |
fba45db2 | 1083 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1084 | { |
1085 | struct frame_info *fi; | |
52f0bd74 AC |
1086 | int count; |
1087 | int i; | |
1088 | struct frame_info *trailing; | |
1089 | int trailing_level; | |
c906108c SS |
1090 | |
1091 | if (!target_has_stack) | |
8a3fe4f8 | 1092 | error (_("No stack.")); |
c906108c | 1093 | |
033a42c2 MK |
1094 | /* The following code must do two things. First, it must set the |
1095 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1096 | printing. Second, it must set the variable count to the number |
1097 | of frames which we should print, or -1 if all of them. */ | |
1098 | trailing = get_current_frame (); | |
d082b2bb AC |
1099 | |
1100 | /* The target can be in a state where there is no valid frames | |
1101 | (e.g., just connected). */ | |
1102 | if (trailing == NULL) | |
8a3fe4f8 | 1103 | error (_("No stack.")); |
d082b2bb | 1104 | |
c906108c SS |
1105 | trailing_level = 0; |
1106 | if (count_exp) | |
1107 | { | |
bb518678 | 1108 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1109 | if (count < 0) |
1110 | { | |
1111 | struct frame_info *current; | |
1112 | ||
1113 | count = -count; | |
1114 | ||
1115 | current = trailing; | |
1116 | while (current && count--) | |
1117 | { | |
1118 | QUIT; | |
1119 | current = get_prev_frame (current); | |
1120 | } | |
c5aa993b | 1121 | |
033a42c2 MK |
1122 | /* Will stop when CURRENT reaches the top of the stack. |
1123 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1124 | while (current) |
1125 | { | |
1126 | QUIT; | |
1127 | trailing = get_prev_frame (trailing); | |
1128 | current = get_prev_frame (current); | |
1129 | trailing_level++; | |
1130 | } | |
c5aa993b | 1131 | |
c906108c SS |
1132 | count = -1; |
1133 | } | |
1134 | } | |
1135 | else | |
1136 | count = -1; | |
1137 | ||
1138 | if (info_verbose) | |
1139 | { | |
1140 | struct partial_symtab *ps; | |
c5aa993b | 1141 | |
033a42c2 MK |
1142 | /* Read in symbols for all of the frames. Need to do this in a |
1143 | separate pass so that "Reading in symbols for xxx" messages | |
1144 | don't screw up the appearance of the backtrace. Also if | |
1145 | people have strong opinions against reading symbols for | |
c5aa993b | 1146 | backtrace this may have to be an option. */ |
c906108c | 1147 | i = count; |
033a42c2 | 1148 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c SS |
1149 | { |
1150 | QUIT; | |
c4a09524 | 1151 | ps = find_pc_psymtab (get_frame_address_in_block (fi)); |
c906108c | 1152 | if (ps) |
033a42c2 | 1153 | PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */ |
c906108c SS |
1154 | } |
1155 | } | |
1156 | ||
033a42c2 | 1157 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1158 | { |
1159 | QUIT; | |
1160 | ||
1161 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1162 | means further attempts to backtrace would fail (on the other |
1163 | hand, perhaps the code does or could be fixed to make sure | |
1164 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1165 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1166 | if (show_locals) |
c5aa993b | 1167 | print_frame_local_vars (fi, 1, gdb_stdout); |
c906108c SS |
1168 | } |
1169 | ||
1170 | /* If we've stopped before the end, mention that. */ | |
1171 | if (fi && from_tty) | |
a3f17187 | 1172 | printf_filtered (_("(More stack frames follow...)\n")); |
c906108c SS |
1173 | } |
1174 | ||
d75e3c94 | 1175 | struct backtrace_command_args |
033a42c2 MK |
1176 | { |
1177 | char *count_exp; | |
1178 | int show_locals; | |
1179 | int from_tty; | |
1180 | }; | |
1181 | ||
1182 | /* Stub for catch_errors. */ | |
d75e3c94 | 1183 | |
d75e3c94 JJ |
1184 | static int |
1185 | backtrace_command_stub (void *data) | |
1186 | { | |
033a42c2 | 1187 | struct backtrace_command_args *args = data; |
d75e3c94 JJ |
1188 | backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty); |
1189 | return 0; | |
1190 | } | |
1191 | ||
c906108c | 1192 | static void |
fba45db2 | 1193 | backtrace_command (char *arg, int from_tty) |
c906108c | 1194 | { |
033a42c2 MK |
1195 | struct cleanup *old_chain = NULL; |
1196 | int fulltrace_arg = -1, arglen = 0, argc = 0; | |
d75e3c94 | 1197 | struct backtrace_command_args btargs; |
c906108c | 1198 | |
033a42c2 | 1199 | if (arg) |
c906108c | 1200 | { |
033a42c2 | 1201 | char **argv; |
c906108c SS |
1202 | int i; |
1203 | ||
c5aa993b | 1204 | argv = buildargv (arg); |
7a292a7a | 1205 | old_chain = make_cleanup_freeargv (argv); |
c906108c | 1206 | argc = 0; |
033a42c2 | 1207 | for (i = 0; argv[i]; i++) |
c5aa993b | 1208 | { |
745b8ca0 | 1209 | unsigned int j; |
c5aa993b | 1210 | |
033a42c2 | 1211 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1212 | argv[i][j] = tolower (argv[i][j]); |
1213 | ||
033a42c2 MK |
1214 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1215 | fulltrace_arg = argc; | |
c5aa993b JM |
1216 | else |
1217 | { | |
033a42c2 | 1218 | arglen += strlen (argv[i]); |
c5aa993b | 1219 | argc++; |
c5aa993b JM |
1220 | } |
1221 | } | |
033a42c2 MK |
1222 | arglen += argc; |
1223 | if (fulltrace_arg >= 0) | |
c5aa993b | 1224 | { |
033a42c2 | 1225 | if (arglen > 0) |
c5aa993b | 1226 | { |
033a42c2 MK |
1227 | arg = xmalloc (arglen + 1); |
1228 | memset (arg, 0, arglen + 1); | |
1229 | for (i = 0; i < (argc + 1); i++) | |
c5aa993b | 1230 | { |
033a42c2 | 1231 | if (i != fulltrace_arg) |
c5aa993b | 1232 | { |
033a42c2 MK |
1233 | strcat (arg, argv[i]); |
1234 | strcat (arg, " "); | |
c5aa993b JM |
1235 | } |
1236 | } | |
1237 | } | |
1238 | else | |
033a42c2 | 1239 | arg = NULL; |
c5aa993b | 1240 | } |
c906108c SS |
1241 | } |
1242 | ||
033a42c2 MK |
1243 | btargs.count_exp = arg; |
1244 | btargs.show_locals = (fulltrace_arg >= 0); | |
d75e3c94 | 1245 | btargs.from_tty = from_tty; |
033a42c2 | 1246 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1247 | |
033a42c2 MK |
1248 | if (fulltrace_arg >= 0 && arglen > 0) |
1249 | xfree (arg); | |
c906108c SS |
1250 | |
1251 | if (old_chain) | |
c5aa993b | 1252 | do_cleanups (old_chain); |
c906108c SS |
1253 | } |
1254 | ||
1255 | static void | |
fba45db2 | 1256 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1257 | { |
d75e3c94 JJ |
1258 | struct backtrace_command_args btargs; |
1259 | btargs.count_exp = arg; | |
1260 | btargs.show_locals = 1; | |
1261 | btargs.from_tty = from_tty; | |
033a42c2 | 1262 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1263 | } |
c906108c | 1264 | \f |
c5aa993b | 1265 | |
033a42c2 | 1266 | /* Print the local variables of a block B active in FRAME on STREAM. |
c906108c SS |
1267 | Return 1 if any variables were printed; 0 otherwise. */ |
1268 | ||
1269 | static int | |
033a42c2 | 1270 | print_block_frame_locals (struct block *b, struct frame_info *frame, |
de4f826b | 1271 | int num_tabs, struct ui_file *stream) |
c906108c | 1272 | { |
de4f826b | 1273 | struct dict_iterator iter; |
de4f826b DC |
1274 | struct symbol *sym; |
1275 | int values_printed = 0; | |
033a42c2 | 1276 | int j; |
c906108c | 1277 | |
de4f826b | 1278 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1279 | { |
c906108c SS |
1280 | switch (SYMBOL_CLASS (sym)) |
1281 | { | |
1282 | case LOC_LOCAL: | |
1283 | case LOC_REGISTER: | |
1284 | case LOC_STATIC: | |
1285 | case LOC_BASEREG: | |
4c2df51b | 1286 | case LOC_COMPUTED: |
c906108c SS |
1287 | values_printed = 1; |
1288 | for (j = 0; j < num_tabs; j++) | |
c5aa993b | 1289 | fputs_filtered ("\t", stream); |
de5ad195 | 1290 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c | 1291 | fputs_filtered (" = ", stream); |
033a42c2 | 1292 | print_variable_value (sym, frame, stream); |
c906108c SS |
1293 | fprintf_filtered (stream, "\n"); |
1294 | break; | |
1295 | ||
1296 | default: | |
1297 | /* Ignore symbols which are not locals. */ | |
1298 | break; | |
1299 | } | |
1300 | } | |
033a42c2 | 1301 | |
c906108c SS |
1302 | return values_printed; |
1303 | } | |
1304 | ||
1305 | /* Same, but print labels. */ | |
1306 | ||
1307 | static int | |
fba45db2 | 1308 | print_block_frame_labels (struct block *b, int *have_default, |
aa1ee363 | 1309 | struct ui_file *stream) |
c906108c | 1310 | { |
de4f826b | 1311 | struct dict_iterator iter; |
52f0bd74 AC |
1312 | struct symbol *sym; |
1313 | int values_printed = 0; | |
c906108c | 1314 | |
de4f826b | 1315 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1316 | { |
acd8056e | 1317 | if (strcmp (DEPRECATED_SYMBOL_NAME (sym), "default") == 0) |
c906108c SS |
1318 | { |
1319 | if (*have_default) | |
1320 | continue; | |
1321 | *have_default = 1; | |
1322 | } | |
1323 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1324 | { | |
1325 | struct symtab_and_line sal; | |
1326 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); | |
1327 | values_printed = 1; | |
de5ad195 | 1328 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1329 | if (addressprint) |
1330 | { | |
1331 | fprintf_filtered (stream, " "); | |
66bf4b3a | 1332 | deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, stream); |
c906108c SS |
1333 | } |
1334 | fprintf_filtered (stream, " in file %s, line %d\n", | |
1335 | sal.symtab->filename, sal.line); | |
1336 | } | |
1337 | } | |
033a42c2 | 1338 | |
c906108c SS |
1339 | return values_printed; |
1340 | } | |
1341 | ||
033a42c2 MK |
1342 | /* Print on STREAM all the local variables in frame FRAME, including |
1343 | all the blocks active in that frame at its current PC. | |
c906108c | 1344 | |
033a42c2 MK |
1345 | Returns 1 if the job was done, or 0 if nothing was printed because |
1346 | we have no info on the function running in FRAME. */ | |
c906108c SS |
1347 | |
1348 | static void | |
033a42c2 | 1349 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 1350 | struct ui_file *stream) |
c906108c | 1351 | { |
033a42c2 | 1352 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1353 | int values_printed = 0; |
c906108c SS |
1354 | |
1355 | if (block == 0) | |
1356 | { | |
1357 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1358 | return; | |
1359 | } | |
c5aa993b | 1360 | |
033a42c2 | 1361 | while (block) |
c906108c | 1362 | { |
033a42c2 | 1363 | if (print_block_frame_locals (block, frame, num_tabs, stream)) |
c906108c | 1364 | values_printed = 1; |
033a42c2 MK |
1365 | /* After handling the function's top-level block, stop. Don't |
1366 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1367 | if (BLOCK_FUNCTION (block)) |
1368 | break; | |
1369 | block = BLOCK_SUPERBLOCK (block); | |
1370 | } | |
1371 | ||
1372 | if (!values_printed) | |
033a42c2 | 1373 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
1374 | } |
1375 | ||
1376 | /* Same, but print labels. */ | |
1377 | ||
1378 | static void | |
033a42c2 | 1379 | print_frame_label_vars (struct frame_info *frame, int this_level_only, |
aa1ee363 | 1380 | struct ui_file *stream) |
c906108c | 1381 | { |
52f0bd74 | 1382 | struct blockvector *bl; |
033a42c2 | 1383 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1384 | int values_printed = 0; |
c906108c SS |
1385 | int index, have_default = 0; |
1386 | char *blocks_printed; | |
033a42c2 | 1387 | CORE_ADDR pc = get_frame_pc (frame); |
c906108c SS |
1388 | |
1389 | if (block == 0) | |
1390 | { | |
1391 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1392 | return; | |
1393 | } | |
1394 | ||
1395 | bl = blockvector_for_pc (BLOCK_END (block) - 4, &index); | |
033a42c2 | 1396 | blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
c906108c SS |
1397 | memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
1398 | ||
1399 | while (block != 0) | |
1400 | { | |
1401 | CORE_ADDR end = BLOCK_END (block) - 4; | |
1402 | int last_index; | |
1403 | ||
1404 | if (bl != blockvector_for_pc (end, &index)) | |
8a3fe4f8 | 1405 | error (_("blockvector blotch")); |
c906108c | 1406 | if (BLOCKVECTOR_BLOCK (bl, index) != block) |
8a3fe4f8 | 1407 | error (_("blockvector botch")); |
c906108c SS |
1408 | last_index = BLOCKVECTOR_NBLOCKS (bl); |
1409 | index += 1; | |
1410 | ||
1411 | /* Don't print out blocks that have gone by. */ | |
1412 | while (index < last_index | |
1413 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc) | |
1414 | index++; | |
1415 | ||
1416 | while (index < last_index | |
1417 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end) | |
1418 | { | |
1419 | if (blocks_printed[index] == 0) | |
1420 | { | |
033a42c2 MK |
1421 | if (print_block_frame_labels (BLOCKVECTOR_BLOCK (bl, index), |
1422 | &have_default, stream)) | |
c906108c SS |
1423 | values_printed = 1; |
1424 | blocks_printed[index] = 1; | |
1425 | } | |
1426 | index++; | |
1427 | } | |
1428 | if (have_default) | |
1429 | return; | |
1430 | if (values_printed && this_level_only) | |
1431 | return; | |
1432 | ||
033a42c2 MK |
1433 | /* After handling the function's top-level block, stop. Don't |
1434 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1435 | if (BLOCK_FUNCTION (block)) |
1436 | break; | |
1437 | block = BLOCK_SUPERBLOCK (block); | |
1438 | } | |
1439 | ||
1440 | if (!values_printed && !this_level_only) | |
033a42c2 | 1441 | fprintf_filtered (stream, _("No catches.\n")); |
c906108c SS |
1442 | } |
1443 | ||
c906108c | 1444 | void |
fba45db2 | 1445 | locals_info (char *args, int from_tty) |
c906108c | 1446 | { |
033a42c2 | 1447 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1448 | 0, gdb_stdout); |
c906108c SS |
1449 | } |
1450 | ||
1451 | static void | |
fba45db2 | 1452 | catch_info (char *ignore, int from_tty) |
c906108c | 1453 | { |
c5aa993b | 1454 | struct symtab_and_line *sal; |
c906108c | 1455 | |
c5aa993b | 1456 | /* Check for target support for exception handling */ |
c906108c SS |
1457 | sal = target_enable_exception_callback (EX_EVENT_CATCH, 1); |
1458 | if (sal) | |
1459 | { | |
033a42c2 MK |
1460 | /* Currently not handling this. Ideally, here we should |
1461 | interact with the C++ runtime system to find the list of | |
1462 | active handlers, etc. */ | |
1463 | fprintf_filtered (gdb_stdout, _("\ | |
1464 | Info catch not supported with this target/compiler combination.\n")); | |
c906108c SS |
1465 | } |
1466 | else | |
1467 | { | |
033a42c2 MK |
1468 | /* Assume g++ compiled code; old GDB 4.16 behaviour. */ |
1469 | print_frame_label_vars (get_selected_frame (_("No frame selected.")), | |
b04f3ab4 | 1470 | 0, gdb_stdout); |
c906108c SS |
1471 | } |
1472 | } | |
1473 | ||
1474 | static void | |
033a42c2 | 1475 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) |
c906108c | 1476 | { |
033a42c2 | 1477 | struct symbol *func = get_frame_function (frame); |
52f0bd74 | 1478 | struct block *b; |
de4f826b | 1479 | struct dict_iterator iter; |
52f0bd74 AC |
1480 | struct symbol *sym, *sym2; |
1481 | int values_printed = 0; | |
c906108c SS |
1482 | |
1483 | if (func == 0) | |
1484 | { | |
033a42c2 | 1485 | fprintf_filtered (stream, _("No symbol table info available.\n")); |
c906108c SS |
1486 | return; |
1487 | } | |
1488 | ||
1489 | b = SYMBOL_BLOCK_VALUE (func); | |
de4f826b | 1490 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1491 | { |
c906108c SS |
1492 | switch (SYMBOL_CLASS (sym)) |
1493 | { | |
1494 | case LOC_ARG: | |
1495 | case LOC_LOCAL_ARG: | |
1496 | case LOC_REF_ARG: | |
1497 | case LOC_REGPARM: | |
1498 | case LOC_REGPARM_ADDR: | |
1499 | case LOC_BASEREG_ARG: | |
4c2df51b | 1500 | case LOC_COMPUTED_ARG: |
c906108c | 1501 | values_printed = 1; |
de5ad195 | 1502 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1503 | fputs_filtered (" = ", stream); |
1504 | ||
1505 | /* We have to look up the symbol because arguments can have | |
1506 | two entries (one a parameter, one a local) and the one we | |
1507 | want is the local, which lookup_symbol will find for us. | |
1508 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1509 | small structure and gcc2 when the argument type is float | |
1510 | and it is passed as a double and converted to float by | |
1511 | the prologue (in the latter case the type of the LOC_ARG | |
1512 | symbol is double and the type of the LOC_LOCAL symbol is | |
1513 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
1514 | are not combined in symbol-reading. */ | |
1515 | ||
22abf04a | 1516 | sym2 = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
033a42c2 MK |
1517 | b, VAR_DOMAIN, NULL, NULL); |
1518 | print_variable_value (sym2, frame, stream); | |
c906108c SS |
1519 | fprintf_filtered (stream, "\n"); |
1520 | break; | |
1521 | ||
1522 | default: | |
1523 | /* Don't worry about things which aren't arguments. */ | |
1524 | break; | |
1525 | } | |
1526 | } | |
033a42c2 | 1527 | |
c906108c | 1528 | if (!values_printed) |
033a42c2 | 1529 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
1530 | } |
1531 | ||
1532 | void | |
fba45db2 | 1533 | args_info (char *ignore, int from_tty) |
c906108c | 1534 | { |
033a42c2 | 1535 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1536 | gdb_stdout); |
c906108c SS |
1537 | } |
1538 | ||
1539 | ||
1540 | static void | |
fba45db2 | 1541 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 1542 | { |
c5aa993b JM |
1543 | args_info (ignore, from_tty); |
1544 | locals_info (ignore, from_tty); | |
c906108c | 1545 | } |
c906108c | 1546 | \f |
c5aa993b | 1547 | |
033a42c2 MK |
1548 | /* Select frame FRAME. Also print the stack frame and show the source |
1549 | if this is the tui version. */ | |
bedfa57b | 1550 | static void |
033a42c2 | 1551 | select_and_print_frame (struct frame_info *frame) |
c906108c | 1552 | { |
033a42c2 MK |
1553 | select_frame (frame); |
1554 | if (frame) | |
1555 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 1556 | } |
c906108c | 1557 | \f |
c906108c | 1558 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
1559 | Can return zero under various legitimate circumstances. |
1560 | ||
1561 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
1562 | code address within the block returned. We use this to decide | |
1563 | which macros are in scope. */ | |
c906108c SS |
1564 | |
1565 | struct block * | |
ae767bfb | 1566 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c SS |
1567 | { |
1568 | if (!target_has_stack) | |
1569 | return 0; | |
1570 | ||
8c69fc49 | 1571 | /* NOTE: cagney/2002-11-28: Why go to all this effort to not create |
b2fa5097 | 1572 | a selected/current frame? Perhaps this function is called, |
8c69fc49 AC |
1573 | indirectly, by WFI in "infrun.c" where avoiding the creation of |
1574 | an inner most frame is very important (it slows down single | |
1575 | step). I suspect, though that this was true in the deep dark | |
1576 | past but is no longer the case. A mindless look at all the | |
1577 | callers tends to support this theory. I think we should be able | |
1578 | to assume that there is always a selcted frame. */ | |
6e7f8b9c AC |
1579 | /* gdb_assert (deprecated_selected_frame != NULL); So, do you feel |
1580 | lucky? */ | |
1581 | if (!deprecated_selected_frame) | |
8c69fc49 AC |
1582 | { |
1583 | CORE_ADDR pc = read_pc (); | |
1584 | if (addr_in_block != NULL) | |
1585 | *addr_in_block = pc; | |
1586 | return block_for_pc (pc); | |
1587 | } | |
6e7f8b9c | 1588 | return get_frame_block (deprecated_selected_frame, addr_in_block); |
c906108c SS |
1589 | } |
1590 | ||
1591 | /* Find a frame a certain number of levels away from FRAME. | |
1592 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
1593 | Positive means go to earlier frames (up); negative, the reverse. | |
1594 | The int that contains the number of levels is counted toward | |
1595 | zero as the frames for those levels are found. | |
1596 | If the top or bottom frame is reached, that frame is returned, | |
1597 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
1598 | how much farther the original request asked to go. */ | |
1599 | ||
1600 | struct frame_info * | |
033a42c2 | 1601 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 1602 | { |
033a42c2 MK |
1603 | /* Going up is simple: just call get_prev_frame enough times or |
1604 | until the initial frame is reached. */ | |
c906108c SS |
1605 | while (*level_offset_ptr > 0) |
1606 | { | |
033a42c2 MK |
1607 | struct frame_info *prev = get_prev_frame (frame); |
1608 | if (!prev) | |
c906108c SS |
1609 | break; |
1610 | (*level_offset_ptr)--; | |
1611 | frame = prev; | |
1612 | } | |
033a42c2 | 1613 | |
c906108c | 1614 | /* Going down is just as simple. */ |
033a42c2 | 1615 | while (*level_offset_ptr < 0) |
c906108c | 1616 | { |
033a42c2 MK |
1617 | struct frame_info *next = get_next_frame (frame); |
1618 | if (!next) | |
1619 | break; | |
1620 | (*level_offset_ptr)++; | |
1621 | frame = next; | |
c906108c | 1622 | } |
033a42c2 | 1623 | |
c906108c SS |
1624 | return frame; |
1625 | } | |
1626 | ||
033a42c2 MK |
1627 | /* The "select_frame" command. With no argument this is a NOP. |
1628 | Select the frame at level LEVEL_EXP if it is a valid level. | |
1629 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
1630 | ||
1631 | See parse_frame_specification for more info on proper frame | |
1632 | expressions. */ | |
c906108c | 1633 | |
8b93c638 | 1634 | void |
fba45db2 | 1635 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 1636 | { |
1c8831c5 | 1637 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
1638 | } |
1639 | ||
033a42c2 MK |
1640 | /* The "frame" command. With no argument, print the selected frame |
1641 | briefly. With an argument, behave like select_frame and then print | |
1642 | the selected frame. */ | |
c906108c | 1643 | |
033a42c2 | 1644 | static void |
fba45db2 | 1645 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
1646 | { |
1647 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 1648 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1649 | } |
1650 | ||
033a42c2 | 1651 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 1652 | |
7a292a7a | 1653 | static void |
fba45db2 | 1654 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 1655 | { |
033a42c2 | 1656 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 1657 | } |
c906108c | 1658 | |
033a42c2 MK |
1659 | /* Select the frame up one or COUNT_EXP stack levels from the |
1660 | previously selected frame, and print it briefly. */ | |
c906108c | 1661 | |
c906108c | 1662 | static void |
fba45db2 | 1663 | up_silently_base (char *count_exp) |
c906108c | 1664 | { |
033a42c2 MK |
1665 | struct frame_info *frame; |
1666 | int count = 1; | |
1667 | ||
c906108c | 1668 | if (count_exp) |
bb518678 | 1669 | count = parse_and_eval_long (count_exp); |
c5aa993b | 1670 | |
033a42c2 MK |
1671 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1672 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 1673 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 1674 | select_frame (frame); |
c906108c SS |
1675 | } |
1676 | ||
1677 | static void | |
fba45db2 | 1678 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 1679 | { |
c5aa993b | 1680 | up_silently_base (count_exp); |
c906108c SS |
1681 | } |
1682 | ||
1683 | static void | |
fba45db2 | 1684 | up_command (char *count_exp, int from_tty) |
c906108c SS |
1685 | { |
1686 | up_silently_base (count_exp); | |
b04f3ab4 | 1687 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1688 | } |
1689 | ||
033a42c2 MK |
1690 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
1691 | selected frame, and print it briefly. */ | |
c906108c | 1692 | |
c906108c | 1693 | static void |
fba45db2 | 1694 | down_silently_base (char *count_exp) |
c906108c | 1695 | { |
52f0bd74 | 1696 | struct frame_info *frame; |
033a42c2 | 1697 | int count = -1; |
c906108c | 1698 | if (count_exp) |
bb518678 | 1699 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 1700 | |
033a42c2 MK |
1701 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1702 | if (count != 0 && count_exp == NULL) | |
c906108c | 1703 | { |
033a42c2 MK |
1704 | /* We only do this if COUNT_EXP is not specified. That way |
1705 | "down" means to really go down (and let me know if that is | |
1706 | impossible), but "down 9999" can be used to mean go all the | |
1707 | way down without getting an error. */ | |
c906108c | 1708 | |
033a42c2 | 1709 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
1710 | } |
1711 | ||
0f7d239c | 1712 | select_frame (frame); |
c906108c SS |
1713 | } |
1714 | ||
c906108c | 1715 | static void |
fba45db2 | 1716 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
1717 | { |
1718 | down_silently_base (count_exp); | |
c906108c SS |
1719 | } |
1720 | ||
1721 | static void | |
fba45db2 | 1722 | down_command (char *count_exp, int from_tty) |
c906108c SS |
1723 | { |
1724 | down_silently_base (count_exp); | |
b04f3ab4 | 1725 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1726 | } |
1727 | \f | |
033a42c2 | 1728 | |
8b93c638 | 1729 | void |
fba45db2 | 1730 | return_command (char *retval_exp, int from_tty) |
c906108c SS |
1731 | { |
1732 | struct symbol *thisfun; | |
3d6d86c6 | 1733 | struct value *return_value = NULL; |
fc70c2a0 | 1734 | const char *query_prefix = ""; |
c906108c | 1735 | |
b04f3ab4 | 1736 | thisfun = get_frame_function (get_selected_frame ("No selected frame.")); |
c906108c | 1737 | |
fc70c2a0 AC |
1738 | /* Compute the return value. If the computation triggers an error, |
1739 | let it bail. If the return type can't be handled, set | |
1740 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
1741 | message. */ | |
c906108c SS |
1742 | if (retval_exp) |
1743 | { | |
1744 | struct type *return_type = NULL; | |
1745 | ||
fc70c2a0 AC |
1746 | /* Compute the return value. Should the computation fail, this |
1747 | call throws an error. */ | |
c906108c SS |
1748 | return_value = parse_and_eval (retval_exp); |
1749 | ||
fc70c2a0 AC |
1750 | /* Cast return value to the return type of the function. Should |
1751 | the cast fail, this call throws an error. */ | |
c906108c SS |
1752 | if (thisfun != NULL) |
1753 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
1754 | if (return_type == NULL) | |
1755 | return_type = builtin_type_int; | |
3e9a183c | 1756 | CHECK_TYPEDEF (return_type); |
c906108c SS |
1757 | return_value = value_cast (return_type, return_value); |
1758 | ||
fc70c2a0 AC |
1759 | /* Make sure the value is fully evaluated. It may live in the |
1760 | stack frame we're about to pop. */ | |
d69fe07e | 1761 | if (value_lazy (return_value)) |
c906108c | 1762 | value_fetch_lazy (return_value); |
c906108c | 1763 | |
667e784f AC |
1764 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
1765 | /* If the return-type is "void", don't try to find the | |
1766 | return-value's location. However, do still evaluate the | |
1767 | return expression so that, even when the expression result | |
1768 | is discarded, side effects such as "return i++" still | |
033a42c2 | 1769 | occur. */ |
667e784f | 1770 | return_value = NULL; |
74055713 AC |
1771 | /* FIXME: cagney/2004-01-17: If the architecture implements both |
1772 | return_value and extract_returned_value_address, should allow | |
1773 | "return" to work - don't set return_value to NULL. */ | |
667e784f AC |
1774 | else if (!gdbarch_return_value_p (current_gdbarch) |
1775 | && (TYPE_CODE (return_type) == TYPE_CODE_STRUCT | |
1776 | || TYPE_CODE (return_type) == TYPE_CODE_UNION)) | |
c906108c | 1777 | { |
667e784f AC |
1778 | /* NOTE: cagney/2003-10-20: Compatibility hack for legacy |
1779 | code. Old architectures don't expect STORE_RETURN_VALUE | |
1780 | to be called with with a small struct that needs to be | |
1781 | stored in registers. Don't start doing it now. */ | |
1782 | query_prefix = "\ | |
1783 | A structure or union return type is not supported by this architecture.\n\ | |
1784 | If you continue, the return value that you specified will be ignored.\n"; | |
1785 | return_value = NULL; | |
c906108c | 1786 | } |
667e784f | 1787 | else if (using_struct_return (return_type, 0)) |
fc70c2a0 | 1788 | { |
667e784f AC |
1789 | query_prefix = "\ |
1790 | The location at which to store the function's return value is unknown.\n\ | |
1791 | If you continue, the return value that you specified will be ignored.\n"; | |
1792 | return_value = NULL; | |
fc70c2a0 | 1793 | } |
c906108c SS |
1794 | } |
1795 | ||
fc70c2a0 AC |
1796 | /* Does an interactive user really want to do this? Include |
1797 | information, such as how well GDB can handle the return value, in | |
1798 | the query message. */ | |
1799 | if (from_tty) | |
1800 | { | |
1801 | int confirmed; | |
1802 | if (thisfun == NULL) | |
e2e0b3e5 | 1803 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
1804 | query_prefix); |
1805 | else | |
e2e0b3e5 | 1806 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
1807 | SYMBOL_PRINT_NAME (thisfun)); |
1808 | if (!confirmed) | |
8a3fe4f8 | 1809 | error (_("Not confirmed")); |
fc70c2a0 | 1810 | } |
c906108c | 1811 | |
fc70c2a0 AC |
1812 | /* NOTE: cagney/2003-01-18: Is this silly? Rather than pop each |
1813 | frame in turn, should this code just go straight to the relevant | |
1814 | frame and pop that? */ | |
c906108c | 1815 | |
fc70c2a0 AC |
1816 | /* First discard all frames inner-to the selected frame (making the |
1817 | selected frame current). */ | |
1818 | { | |
b04f3ab4 | 1819 | struct frame_id selected_id = get_frame_id (get_selected_frame (NULL)); |
fc70c2a0 AC |
1820 | while (!frame_id_eq (selected_id, get_frame_id (get_current_frame ()))) |
1821 | { | |
1822 | if (frame_id_inner (selected_id, get_frame_id (get_current_frame ()))) | |
1823 | /* Caught in the safety net, oops! We've gone way past the | |
1824 | selected frame. */ | |
8a3fe4f8 | 1825 | error (_("Problem while popping stack frames (corrupt stack?)")); |
fc70c2a0 AC |
1826 | frame_pop (get_current_frame ()); |
1827 | } | |
1828 | } | |
c906108c | 1829 | |
fc70c2a0 AC |
1830 | /* Second discard the selected frame (which is now also the current |
1831 | frame). */ | |
dbe9fe58 | 1832 | frame_pop (get_current_frame ()); |
c906108c | 1833 | |
fc70c2a0 AC |
1834 | /* Store RETURN_VAUE in the just-returned register set. */ |
1835 | if (return_value != NULL) | |
1836 | { | |
df407dfe | 1837 | struct type *return_type = value_type (return_value); |
750eb019 AC |
1838 | gdb_assert (gdbarch_return_value (current_gdbarch, return_type, |
1839 | NULL, NULL, NULL) | |
1840 | == RETURN_VALUE_REGISTER_CONVENTION); | |
1841 | gdbarch_return_value (current_gdbarch, return_type, | |
1842 | current_regcache, NULL /*read*/, | |
0fd88904 | 1843 | value_contents (return_value) /*write*/); |
fc70c2a0 | 1844 | } |
1a2aab69 | 1845 | |
fc70c2a0 AC |
1846 | /* If we are at the end of a call dummy now, pop the dummy frame |
1847 | too. */ | |
e8bcf01f AC |
1848 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
1849 | frame_pop (get_current_frame ()); | |
1a2aab69 | 1850 | |
c906108c | 1851 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
1852 | if (from_tty) |
1853 | frame_command ("0", 1); | |
1854 | else | |
1855 | select_frame_command ("0", 0); | |
1856 | } | |
1857 | ||
033a42c2 MK |
1858 | /* Sets the scope to input function name, provided that the function |
1859 | is within the current stack frame */ | |
c906108c SS |
1860 | |
1861 | struct function_bounds | |
1862 | { | |
1863 | CORE_ADDR low, high; | |
1864 | }; | |
1865 | ||
1866 | static void | |
fba45db2 | 1867 | func_command (char *arg, int from_tty) |
c906108c | 1868 | { |
033a42c2 | 1869 | struct frame_info *frame; |
c906108c SS |
1870 | int found = 0; |
1871 | struct symtabs_and_lines sals; | |
1872 | int i; | |
1873 | int level = 1; | |
033a42c2 | 1874 | struct function_bounds *func_bounds = NULL; |
c906108c | 1875 | |
033a42c2 | 1876 | if (arg != NULL) |
c906108c SS |
1877 | return; |
1878 | ||
033a42c2 | 1879 | frame = parse_frame_specification ("0"); |
c906108c SS |
1880 | sals = decode_line_spec (arg, 1); |
1881 | func_bounds = (struct function_bounds *) xmalloc ( | |
1882 | sizeof (struct function_bounds) * sals.nelts); | |
1883 | for (i = 0; (i < sals.nelts && !found); i++) | |
1884 | { | |
033a42c2 MK |
1885 | if (sals.sals[i].pc == 0 |
1886 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
1887 | &func_bounds[i].low, | |
1888 | &func_bounds[i].high) == 0) | |
c906108c | 1889 | { |
033a42c2 | 1890 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
1891 | } |
1892 | } | |
1893 | ||
1894 | do | |
1895 | { | |
1896 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
1897 | found = (get_frame_pc (frame) >= func_bounds[i].low |
1898 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
1899 | if (!found) |
1900 | { | |
1901 | level = 1; | |
033a42c2 | 1902 | frame = find_relative_frame (frame, &level); |
c906108c SS |
1903 | } |
1904 | } | |
1905 | while (!found && level == 0); | |
1906 | ||
1907 | if (func_bounds) | |
b8c9b27d | 1908 | xfree (func_bounds); |
c906108c SS |
1909 | |
1910 | if (!found) | |
a3f17187 | 1911 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
033a42c2 MK |
1912 | else if (frame != deprecated_selected_frame) |
1913 | select_and_print_frame (frame); | |
c906108c SS |
1914 | } |
1915 | ||
1916 | /* Gets the language of the current frame. */ | |
1917 | ||
1918 | enum language | |
fba45db2 | 1919 | get_frame_language (void) |
c906108c | 1920 | { |
033a42c2 | 1921 | struct frame_info *frame = deprecated_selected_frame; |
c5aa993b | 1922 | |
033a42c2 | 1923 | if (frame) |
c906108c | 1924 | { |
7ae4c3a5 | 1925 | /* We determine the current frame language by looking up its |
033a42c2 MK |
1926 | associated symtab. To retrieve this symtab, we use the frame |
1927 | PC. However we cannot use the frame PC as is, because it | |
1928 | usually points to the instruction following the "call", which | |
1929 | is sometimes the first instruction of another function. So | |
1930 | we rely on get_frame_address_in_block(), it provides us with | |
1931 | a PC that is guaranteed to be inside the frame's code | |
1932 | block. */ | |
1933 | CORE_ADDR pc = get_frame_address_in_block (frame); | |
1934 | struct symtab *s = find_pc_symtab (pc); | |
1935 | ||
c906108c | 1936 | if (s) |
033a42c2 | 1937 | return s->language; |
c906108c | 1938 | } |
c906108c | 1939 | |
033a42c2 | 1940 | return language_unknown; |
c906108c SS |
1941 | } |
1942 | \f | |
033a42c2 MK |
1943 | |
1944 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
1945 | void _initialize_stack (void); | |
1946 | ||
c906108c | 1947 | void |
fba45db2 | 1948 | _initialize_stack (void) |
c906108c | 1949 | { |
c5aa993b | 1950 | #if 0 |
c906108c SS |
1951 | backtrace_limit = 30; |
1952 | #endif | |
1953 | ||
1bedd215 AC |
1954 | add_com ("return", class_stack, return_command, _("\ |
1955 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
1956 | Control remains in the debugger, but when you continue\n\ |
1957 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
1958 | If an argument is given, it is an expression for the value to return.")); |
1959 | ||
1960 | add_com ("up", class_stack, up_command, _("\ | |
1961 | Select and print stack frame that called this one.\n\ | |
1962 | An argument says how many frames up to go.")); | |
1963 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
1964 | Same as the `up' command, but does not print anything.\n\ | |
1965 | This is useful in command scripts.")); | |
1966 | ||
1967 | add_com ("down", class_stack, down_command, _("\ | |
1968 | Select and print stack frame called by this one.\n\ | |
1969 | An argument says how many frames down to go.")); | |
c906108c SS |
1970 | add_com_alias ("do", "down", class_stack, 1); |
1971 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
1972 | add_com ("down-silently", class_support, down_silently_command, _("\ |
1973 | Same as the `down' command, but does not print anything.\n\ | |
1974 | This is useful in command scripts.")); | |
c906108c | 1975 | |
1bedd215 AC |
1976 | add_com ("frame", class_stack, frame_command, _("\ |
1977 | Select and print a stack frame.\n\ | |
c906108c SS |
1978 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ |
1979 | An argument specifies the frame to select.\n\ | |
1980 | It can be a stack frame number or the address of the frame.\n\ | |
1981 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 1982 | a command file or a user-defined command.")); |
c906108c SS |
1983 | |
1984 | add_com_alias ("f", "frame", class_stack, 1); | |
1985 | ||
1986 | if (xdb_commands) | |
1987 | { | |
c5aa993b | 1988 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 1989 | _("Print the current stack frame.\n")); |
c906108c SS |
1990 | add_com_alias ("V", "frame", class_stack, 1); |
1991 | } | |
1bedd215 AC |
1992 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
1993 | Select a stack frame without printing anything.\n\ | |
c906108c | 1994 | An argument specifies the frame to select.\n\ |
1bedd215 | 1995 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 1996 | |
1bedd215 AC |
1997 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
1998 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
c906108c | 1999 | With a negative argument, print outermost -COUNT frames.\n\ |
1bedd215 | 2000 | Use of the 'full' qualifier also prints the values of the local variables.\n")); |
c906108c SS |
2001 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2002 | if (xdb_commands) | |
2003 | { | |
2004 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 AC |
2005 | add_com ("T", class_stack, backtrace_full_command, _("\ |
2006 | Print backtrace of all stack frames, or innermost COUNT frames \n\ | |
c906108c SS |
2007 | and the values of the local variables.\n\ |
2008 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2009 | Usage: T <count>\n")); |
c906108c SS |
2010 | } |
2011 | ||
2012 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2013 | add_info ("stack", backtrace_command, | |
1bedd215 | 2014 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2015 | add_info_alias ("s", "stack", 1); |
2016 | add_info ("frame", frame_info, | |
1bedd215 | 2017 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2018 | add_info_alias ("f", "frame", 1); |
2019 | add_info ("locals", locals_info, | |
1bedd215 | 2020 | _("Local variables of current stack frame.")); |
c906108c | 2021 | add_info ("args", args_info, |
1bedd215 | 2022 | _("Argument variables of current stack frame.")); |
c906108c | 2023 | if (xdb_commands) |
c5aa993b | 2024 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2025 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2026 | |
2027 | if (dbx_commands) | |
1bedd215 AC |
2028 | add_com ("func", class_stack, func_command, _("\ |
2029 | Select the stack frame that contains <func>.\n\ | |
2030 | Usage: func <name>\n")); | |
c906108c SS |
2031 | |
2032 | add_info ("catch", catch_info, | |
1bedd215 | 2033 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c SS |
2034 | |
2035 | #if 0 | |
1a966eab AC |
2036 | add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\ |
2037 | "Specify maximum number of frames for \"backtrace\" to print by default."), | |
c906108c | 2038 | &setlist); |
1bedd215 AC |
2039 | add_info ("backtrace-limit", backtrace_limit_info, _("\ |
2040 | The maximum number of frames for \"backtrace\" to print by default.")); | |
c906108c SS |
2041 | #endif |
2042 | } |