Commit | Line | Data |
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c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
0fb0cc75 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
7b6bb8da | 5 | 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 21 | |
c906108c | 22 | #include "defs.h" |
c906108c SS |
23 | #include "value.h" |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "language.h" | |
28 | #include "frame.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "gdbcore.h" | |
31 | #include "target.h" | |
0378c332 | 32 | #include "source.h" |
c906108c SS |
33 | #include "breakpoint.h" |
34 | #include "demangle.h" | |
35 | #include "inferior.h" | |
36 | #include "annotate.h" | |
8b93c638 | 37 | #include "ui-out.h" |
fe898f56 | 38 | #include "block.h" |
b9362cc7 | 39 | #include "stack.h" |
de4f826b | 40 | #include "dictionary.h" |
60250e8b | 41 | #include "exceptions.h" |
898c62f5 | 42 | #include "reggroups.h" |
fc70c2a0 | 43 | #include "regcache.h" |
a77053c2 | 44 | #include "solib.h" |
033a42c2 | 45 | #include "valprint.h" |
8ea051c5 | 46 | #include "gdbthread.h" |
3567439c | 47 | #include "cp-support.h" |
30c33a9f | 48 | #include "disasm.h" |
edb3359d | 49 | #include "inline-frame.h" |
c906108c | 50 | |
033a42c2 MK |
51 | #include "gdb_assert.h" |
52 | #include <ctype.h> | |
53 | #include "gdb_string.h" | |
c906108c | 54 | |
ccefe4c4 TT |
55 | #include "psymtab.h" |
56 | #include "symfile.h" | |
57 | ||
9a4105ab | 58 | void (*deprecated_selected_frame_level_changed_hook) (int); |
c906108c | 59 | |
2421fe6f | 60 | /* The possible choices of "set print frame-arguments", and the value |
88408340 JB |
61 | of this setting. */ |
62 | ||
63 | static const char *print_frame_arguments_choices[] = | |
64 | {"all", "scalars", "none", NULL}; | |
476f7b68 | 65 | static const char *print_frame_arguments = "scalars"; |
88408340 | 66 | |
e18b2753 JK |
67 | /* The possible choices of "set print entry-values", and the value |
68 | of this setting. */ | |
69 | ||
70 | const char print_entry_values_no[] = "no"; | |
71 | const char print_entry_values_only[] = "only"; | |
72 | const char print_entry_values_preferred[] = "preferred"; | |
73 | const char print_entry_values_if_needed[] = "if-needed"; | |
74 | const char print_entry_values_both[] = "both"; | |
75 | const char print_entry_values_compact[] = "compact"; | |
76 | const char print_entry_values_default[] = "default"; | |
77 | static const char *print_entry_values_choices[] = | |
78 | { | |
79 | print_entry_values_no, | |
80 | print_entry_values_only, | |
81 | print_entry_values_preferred, | |
82 | print_entry_values_if_needed, | |
83 | print_entry_values_both, | |
84 | print_entry_values_compact, | |
85 | print_entry_values_default, | |
86 | NULL | |
87 | }; | |
88 | const char *print_entry_values = print_entry_values_default; | |
89 | ||
c378eb4e | 90 | /* Prototypes for local functions. */ |
c906108c | 91 | |
d9fcf2fb JM |
92 | static void print_frame_local_vars (struct frame_info *, int, |
93 | struct ui_file *); | |
c906108c | 94 | |
033a42c2 MK |
95 | static void print_frame (struct frame_info *frame, int print_level, |
96 | enum print_what print_what, int print_args, | |
c5394b80 JM |
97 | struct symtab_and_line sal); |
98 | ||
c906108c SS |
99 | /* Zero means do things normally; we are interacting directly with the |
100 | user. One means print the full filename and linenumber when a | |
101 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
102 | parse. Two means print similar annotations, but in many more | |
103 | cases and in a slightly different syntax. */ | |
104 | ||
105 | int annotation_level = 0; | |
c906108c | 106 | \f |
c5aa993b | 107 | |
edb3359d DJ |
108 | /* Return 1 if we should display the address in addition to the location, |
109 | because we are in the middle of a statement. */ | |
110 | ||
111 | static int | |
112 | frame_show_address (struct frame_info *frame, | |
113 | struct symtab_and_line sal) | |
114 | { | |
115 | /* If there is a line number, but no PC, then there is no location | |
116 | information associated with this sal. The only way that should | |
117 | happen is for the call sites of inlined functions (SAL comes from | |
118 | find_frame_sal). Otherwise, we would have some PC range if the | |
119 | SAL came from a line table. */ | |
120 | if (sal.line != 0 && sal.pc == 0 && sal.end == 0) | |
121 | { | |
122 | if (get_next_frame (frame) == NULL) | |
123 | gdb_assert (inline_skipped_frames (inferior_ptid) > 0); | |
124 | else | |
125 | gdb_assert (get_frame_type (get_next_frame (frame)) == INLINE_FRAME); | |
126 | return 0; | |
127 | } | |
128 | ||
129 | return get_frame_pc (frame) != sal.pc; | |
130 | } | |
131 | ||
033a42c2 | 132 | /* Show or print a stack frame FRAME briefly. The output is format |
d762c46a AC |
133 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
134 | relative level, function name, argument list, and file name and | |
135 | line number. If the frame's PC is not at the beginning of the | |
136 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
137 | |
138 | void | |
033a42c2 | 139 | print_stack_frame (struct frame_info *frame, int print_level, |
0faf0076 | 140 | enum print_what print_what) |
c906108c | 141 | { |
311b5970 | 142 | volatile struct gdb_exception e; |
c906108c | 143 | |
aaf9e9fd | 144 | /* For mi, alway print location and address. */ |
79a45e25 | 145 | if (ui_out_is_mi_like_p (current_uiout)) |
311b5970 | 146 | print_what = LOC_AND_ADDRESS; |
c906108c | 147 | |
311b5970 JK |
148 | TRY_CATCH (e, RETURN_MASK_ERROR) |
149 | { | |
150 | int center = (print_what == SRC_LINE || print_what == SRC_AND_LOC); | |
c906108c | 151 | |
311b5970 JK |
152 | print_frame_info (frame, print_level, print_what, 1 /* print_args */); |
153 | set_current_sal_from_frame (frame, center); | |
154 | } | |
155 | } | |
c906108c | 156 | |
033a42c2 MK |
157 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
158 | the offset of the first nameless argument, and NUM is the number of | |
159 | nameless arguments to print. FIRST is nonzero if this is the first | |
160 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
161 | |
162 | static void | |
033a42c2 | 163 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
164 | int first, struct ui_file *stream) |
165 | { | |
e17a4113 UW |
166 | struct gdbarch *gdbarch = get_frame_arch (frame); |
167 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
8d3b0994 AC |
168 | int i; |
169 | CORE_ADDR argsaddr; | |
170 | long arg_value; | |
171 | ||
172 | for (i = 0; i < num; i++) | |
173 | { | |
174 | QUIT; | |
033a42c2 | 175 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
176 | if (!argsaddr) |
177 | return; | |
e17a4113 UW |
178 | arg_value = read_memory_integer (argsaddr + start, |
179 | sizeof (int), byte_order); | |
8d3b0994 AC |
180 | if (!first) |
181 | fprintf_filtered (stream, ", "); | |
182 | fprintf_filtered (stream, "%ld", arg_value); | |
183 | first = 0; | |
184 | start += sizeof (int); | |
185 | } | |
186 | } | |
187 | ||
93d86cef JK |
188 | /* Print single argument of inferior function. ARG must be already |
189 | read in. | |
190 | ||
191 | Errors are printed as if they would be the parameter value. Use zeroed ARG | |
192 | iff it should not be printed accoring to user settings. */ | |
193 | ||
194 | static void | |
195 | print_frame_arg (const struct frame_arg *arg) | |
196 | { | |
197 | struct ui_out *uiout = current_uiout; | |
198 | volatile struct gdb_exception except; | |
199 | struct cleanup *old_chain; | |
200 | struct ui_stream *stb; | |
201 | ||
202 | stb = ui_out_stream_new (uiout); | |
203 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
204 | ||
205 | gdb_assert (!arg->val || !arg->error); | |
e18b2753 JK |
206 | gdb_assert (arg->entry_kind == print_entry_values_no |
207 | || arg->entry_kind == print_entry_values_only | |
208 | || (!ui_out_is_mi_like_p (uiout) | |
209 | && arg->entry_kind == print_entry_values_compact)); | |
93d86cef JK |
210 | |
211 | annotate_arg_begin (); | |
212 | ||
213 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
214 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (arg->sym), | |
215 | SYMBOL_LANGUAGE (arg->sym), DMGL_PARAMS | DMGL_ANSI); | |
e18b2753 JK |
216 | if (arg->entry_kind == print_entry_values_compact) |
217 | { | |
218 | /* It is OK to provide invalid MI-like stream as with | |
219 | PRINT_ENTRY_VALUE_COMPACT we never use MI. */ | |
220 | fputs_filtered ("=", stb->stream); | |
221 | ||
222 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (arg->sym), | |
223 | SYMBOL_LANGUAGE (arg->sym), | |
224 | DMGL_PARAMS | DMGL_ANSI); | |
225 | } | |
226 | if (arg->entry_kind == print_entry_values_only | |
227 | || arg->entry_kind == print_entry_values_compact) | |
228 | fputs_filtered ("@entry", stb->stream); | |
93d86cef JK |
229 | ui_out_field_stream (uiout, "name", stb); |
230 | annotate_arg_name_end (); | |
231 | ui_out_text (uiout, "="); | |
232 | ||
233 | if (!arg->val && !arg->error) | |
234 | ui_out_text (uiout, "..."); | |
235 | else | |
236 | { | |
237 | if (arg->error) | |
238 | except.message = arg->error; | |
239 | else | |
240 | { | |
241 | /* TRY_CATCH has two statements, wrap it in a block. */ | |
242 | ||
243 | TRY_CATCH (except, RETURN_MASK_ERROR) | |
244 | { | |
245 | const struct language_defn *language; | |
246 | struct value_print_options opts; | |
247 | ||
248 | /* Avoid value_print because it will deref ref parameters. We | |
249 | just want to print their addresses. Print ??? for args whose | |
250 | address we do not know. We pass 2 as "recurse" to val_print | |
251 | because our standard indentation here is 4 spaces, and | |
252 | val_print indents 2 for each recurse. */ | |
253 | ||
254 | annotate_arg_value (value_type (arg->val)); | |
255 | ||
256 | /* Use the appropriate language to display our symbol, unless the | |
257 | user forced the language to a specific language. */ | |
258 | if (language_mode == language_mode_auto) | |
259 | language = language_def (SYMBOL_LANGUAGE (arg->sym)); | |
260 | else | |
261 | language = current_language; | |
262 | ||
263 | get_raw_print_options (&opts); | |
3343315b | 264 | opts.deref_ref = 1; |
93d86cef JK |
265 | |
266 | /* True in "summary" mode, false otherwise. */ | |
267 | opts.summary = !strcmp (print_frame_arguments, "scalars"); | |
268 | ||
269 | common_val_print (arg->val, stb->stream, 2, &opts, language); | |
270 | } | |
271 | } | |
272 | if (except.message) | |
273 | fprintf_filtered (stb->stream, _("<error reading variable: %s>"), | |
274 | except.message); | |
275 | } | |
276 | ||
277 | ui_out_field_stream (uiout, "value", stb); | |
278 | ||
279 | /* Aleo invoke ui_out_tuple_end. */ | |
280 | do_cleanups (old_chain); | |
281 | ||
282 | annotate_arg_end (); | |
283 | } | |
284 | ||
285 | /* Read in inferior function parameter SYM at FRAME into ARGP. Caller is | |
286 | responsible for xfree of ARGP->ERROR. This function never throws an | |
287 | exception. */ | |
288 | ||
289 | void | |
290 | read_frame_arg (struct symbol *sym, struct frame_info *frame, | |
e18b2753 | 291 | struct frame_arg *argp, struct frame_arg *entryargp) |
93d86cef | 292 | { |
e18b2753 JK |
293 | struct value *val = NULL, *entryval = NULL; |
294 | char *val_error = NULL, *entryval_error = NULL; | |
295 | int val_equal = 0; | |
93d86cef JK |
296 | volatile struct gdb_exception except; |
297 | ||
e18b2753 JK |
298 | if (print_entry_values != print_entry_values_only |
299 | && print_entry_values != print_entry_values_preferred) | |
300 | { | |
301 | TRY_CATCH (except, RETURN_MASK_ERROR) | |
302 | { | |
303 | val = read_var_value (sym, frame); | |
304 | } | |
305 | if (!val) | |
306 | { | |
307 | val_error = alloca (strlen (except.message) + 1); | |
308 | strcpy (val_error, except.message); | |
309 | } | |
310 | } | |
311 | ||
312 | if (SYMBOL_CLASS (sym) == LOC_COMPUTED | |
313 | && print_entry_values != print_entry_values_no | |
314 | && (print_entry_values != print_entry_values_if_needed | |
315 | || !val || value_optimized_out (val))) | |
316 | { | |
317 | TRY_CATCH (except, RETURN_MASK_ERROR) | |
318 | { | |
319 | const struct symbol_computed_ops *ops; | |
320 | ||
321 | ops = SYMBOL_COMPUTED_OPS (sym); | |
322 | entryval = ops->read_variable_at_entry (sym, frame); | |
323 | } | |
324 | if (!entryval) | |
325 | { | |
326 | entryval_error = alloca (strlen (except.message) + 1); | |
327 | strcpy (entryval_error, except.message); | |
328 | } | |
329 | ||
330 | if (except.error == NO_ENTRY_VALUE_ERROR | |
331 | || (entryval && value_optimized_out (entryval))) | |
332 | { | |
333 | entryval = NULL; | |
334 | entryval_error = NULL; | |
335 | } | |
336 | ||
337 | if (print_entry_values == print_entry_values_compact | |
338 | || print_entry_values == print_entry_values_default) | |
339 | { | |
340 | /* For MI do not try to use print_entry_values_compact for ARGP. */ | |
341 | ||
342 | if (val && entryval && !ui_out_is_mi_like_p (current_uiout)) | |
343 | { | |
344 | unsigned len = TYPE_LENGTH (value_type (val)); | |
345 | ||
346 | if (!value_optimized_out (val) && value_lazy (val)) | |
347 | value_fetch_lazy (val); | |
348 | if (!value_optimized_out (val) && value_lazy (entryval)) | |
349 | value_fetch_lazy (entryval); | |
350 | if (!value_optimized_out (val) | |
351 | && value_available_contents_eq (val, 0, entryval, 0, len)) | |
352 | { | |
509f0fd9 JK |
353 | /* Initialize it just to avoid a GCC false warning. */ |
354 | struct value *val_deref = NULL, *entryval_deref; | |
a471c594 JK |
355 | |
356 | /* DW_AT_GNU_call_site_value does match with the current | |
357 | value. If it is a reference still try to verify if | |
358 | dereferenced DW_AT_GNU_call_site_data_value does not | |
359 | differ. */ | |
360 | ||
361 | TRY_CATCH (except, RETURN_MASK_ERROR) | |
362 | { | |
363 | unsigned len_deref; | |
364 | ||
365 | val_deref = coerce_ref (val); | |
366 | if (value_lazy (val_deref)) | |
367 | value_fetch_lazy (val_deref); | |
368 | len_deref = TYPE_LENGTH (value_type (val_deref)); | |
369 | ||
370 | entryval_deref = coerce_ref (entryval); | |
371 | if (value_lazy (entryval_deref)) | |
372 | value_fetch_lazy (entryval_deref); | |
373 | ||
374 | /* If the reference addresses match but dereferenced | |
375 | content does not match print them. */ | |
376 | if (val != val_deref | |
377 | && value_available_contents_eq (val_deref, 0, | |
378 | entryval_deref, 0, | |
379 | len_deref)) | |
380 | val_equal = 1; | |
381 | } | |
382 | ||
383 | /* Value was not a reference; and its content matches. */ | |
384 | if (val == val_deref) | |
385 | val_equal = 1; | |
386 | /* If the dereferenced content could not be fetched do not | |
387 | display anything. */ | |
388 | else if (except.error == NO_ENTRY_VALUE_ERROR) | |
389 | val_equal = 1; | |
390 | else if (except.message) | |
391 | { | |
392 | entryval_error = alloca (strlen (except.message) + 1); | |
393 | strcpy (entryval_error, except.message); | |
394 | } | |
395 | ||
396 | if (val_equal) | |
397 | entryval = NULL; | |
e18b2753 JK |
398 | } |
399 | } | |
400 | ||
401 | /* Try to remove possibly duplicate error message for ENTRYARGP even | |
402 | in MI mode. */ | |
403 | ||
404 | if (val_error && entryval_error | |
405 | && strcmp (val_error, entryval_error) == 0) | |
406 | { | |
407 | entryval_error = NULL; | |
408 | ||
409 | /* Do not se VAL_EQUAL as the same error message may be shown for | |
410 | the entry value even if no entry values are present in the | |
411 | inferior. */ | |
412 | } | |
413 | } | |
414 | } | |
415 | ||
416 | if (entryval == NULL) | |
93d86cef | 417 | { |
e18b2753 JK |
418 | if (print_entry_values == print_entry_values_preferred) |
419 | { | |
420 | TRY_CATCH (except, RETURN_MASK_ERROR) | |
421 | { | |
422 | val = read_var_value (sym, frame); | |
423 | } | |
424 | if (!val) | |
425 | { | |
426 | val_error = alloca (strlen (except.message) + 1); | |
427 | strcpy (val_error, except.message); | |
428 | } | |
429 | } | |
430 | if (print_entry_values == print_entry_values_only | |
431 | || print_entry_values == print_entry_values_both | |
432 | || (print_entry_values == print_entry_values_preferred | |
433 | && (!val || value_optimized_out (val)))) | |
434 | entryval = allocate_optimized_out_value (SYMBOL_TYPE (sym)); | |
93d86cef | 435 | } |
e18b2753 JK |
436 | if ((print_entry_values == print_entry_values_compact |
437 | || print_entry_values == print_entry_values_if_needed | |
438 | || print_entry_values == print_entry_values_preferred) | |
439 | && (!val || value_optimized_out (val)) && entryval != NULL) | |
93d86cef | 440 | { |
e18b2753 JK |
441 | val = NULL; |
442 | val_error = NULL; | |
93d86cef JK |
443 | } |
444 | ||
445 | argp->sym = sym; | |
446 | argp->val = val; | |
447 | argp->error = val_error ? xstrdup (val_error) : NULL; | |
e18b2753 JK |
448 | if (!val && !val_error) |
449 | argp->entry_kind = print_entry_values_only; | |
450 | else if ((print_entry_values == print_entry_values_compact | |
451 | || print_entry_values == print_entry_values_default) && val_equal) | |
452 | { | |
453 | argp->entry_kind = print_entry_values_compact; | |
454 | gdb_assert (!ui_out_is_mi_like_p (current_uiout)); | |
455 | } | |
456 | else | |
457 | argp->entry_kind = print_entry_values_no; | |
458 | ||
459 | entryargp->sym = sym; | |
460 | entryargp->val = entryval; | |
461 | entryargp->error = entryval_error ? xstrdup (entryval_error) : NULL; | |
462 | if (!entryval && !entryval_error) | |
463 | entryargp->entry_kind = print_entry_values_no; | |
464 | else | |
465 | entryargp->entry_kind = print_entry_values_only; | |
93d86cef JK |
466 | } |
467 | ||
033a42c2 MK |
468 | /* Print the arguments of frame FRAME on STREAM, given the function |
469 | FUNC running in that frame (as a symbol), where NUM is the number | |
470 | of arguments according to the stack frame (or -1 if the number of | |
471 | arguments is unknown). */ | |
8d3b0994 | 472 | |
e3168615 | 473 | /* Note that currently the "number of arguments according to the |
033a42c2 | 474 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 475 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
476 | |
477 | static void | |
033a42c2 MK |
478 | print_frame_args (struct symbol *func, struct frame_info *frame, |
479 | int num, struct ui_file *stream) | |
8d3b0994 | 480 | { |
79a45e25 | 481 | struct ui_out *uiout = current_uiout; |
8d3b0994 | 482 | int first = 1; |
8d3b0994 | 483 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
484 | at the highest offset, or -1 if we haven't come to a stack |
485 | argument yet. */ | |
8d3b0994 | 486 | long highest_offset = -1; |
8d3b0994 AC |
487 | /* Number of ints of arguments that we have printed so far. */ |
488 | int args_printed = 0; | |
489 | struct cleanup *old_chain, *list_chain; | |
490 | struct ui_stream *stb; | |
a6bac58e TT |
491 | /* True if we should print arguments, false otherwise. */ |
492 | int print_args = strcmp (print_frame_arguments, "none"); | |
493 | /* True in "summary" mode, false otherwise. */ | |
494 | int summary = !strcmp (print_frame_arguments, "scalars"); | |
8d3b0994 AC |
495 | |
496 | stb = ui_out_stream_new (uiout); | |
497 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
498 | ||
499 | if (func) | |
500 | { | |
033a42c2 MK |
501 | struct block *b = SYMBOL_BLOCK_VALUE (func); |
502 | struct dict_iterator iter; | |
503 | struct symbol *sym; | |
8d3b0994 | 504 | |
de4f826b | 505 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 | 506 | { |
e18b2753 | 507 | struct frame_arg arg, entryarg; |
93d86cef | 508 | |
8d3b0994 AC |
509 | QUIT; |
510 | ||
511 | /* Keep track of the highest stack argument offset seen, and | |
512 | skip over any kinds of symbols we don't care about. */ | |
513 | ||
2a2d4dc3 AS |
514 | if (!SYMBOL_IS_ARGUMENT (sym)) |
515 | continue; | |
516 | ||
8d3b0994 AC |
517 | switch (SYMBOL_CLASS (sym)) |
518 | { | |
519 | case LOC_ARG: | |
520 | case LOC_REF_ARG: | |
521 | { | |
522 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 523 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
524 | |
525 | /* Compute address of next argument by adding the size of | |
526 | this argument and rounding to an int boundary. */ | |
527 | current_offset = | |
528 | ((current_offset + arg_size + sizeof (int) - 1) | |
529 | & ~(sizeof (int) - 1)); | |
530 | ||
033a42c2 MK |
531 | /* If this is the highest offset seen yet, set |
532 | highest_offset. */ | |
8d3b0994 AC |
533 | if (highest_offset == -1 |
534 | || (current_offset > highest_offset)) | |
535 | highest_offset = current_offset; | |
536 | ||
033a42c2 MK |
537 | /* Add the number of ints we're about to print to |
538 | args_printed. */ | |
8d3b0994 AC |
539 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
540 | } | |
541 | ||
033a42c2 MK |
542 | /* We care about types of symbols, but don't need to |
543 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 544 | case LOC_REGISTER: |
8d3b0994 | 545 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
546 | case LOC_COMPUTED: |
547 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 548 | default: |
2a2d4dc3 | 549 | break; |
8d3b0994 AC |
550 | } |
551 | ||
552 | /* We have to look up the symbol because arguments can have | |
553 | two entries (one a parameter, one a local) and the one we | |
554 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 555 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
556 | small structure and gcc2 when the argument type is float |
557 | and it is passed as a double and converted to float by | |
558 | the prologue (in the latter case the type of the LOC_ARG | |
559 | symbol is double and the type of the LOC_LOCAL symbol is | |
560 | float). */ | |
033a42c2 MK |
561 | /* But if the parameter name is null, don't try it. Null |
562 | parameter names occur on the RS/6000, for traceback | |
563 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 564 | |
3567439c | 565 | if (*SYMBOL_LINKAGE_NAME (sym)) |
8d3b0994 AC |
566 | { |
567 | struct symbol *nsym; | |
433759f7 | 568 | |
3567439c | 569 | nsym = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), |
2570f2b7 | 570 | b, VAR_DOMAIN, NULL); |
55765a25 | 571 | gdb_assert (nsym != NULL); |
2a2d4dc3 AS |
572 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER |
573 | && !SYMBOL_IS_ARGUMENT (nsym)) | |
8d3b0994 | 574 | { |
033a42c2 MK |
575 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
576 | that it was passed on the stack and loaded into a | |
577 | register, or passed in a register and stored in a | |
578 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
579 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
580 | |
581 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
582 | |
583 | (1) Because find_saved_registers may be slow for | |
584 | remote debugging. | |
585 | ||
586 | (2) Because registers are often re-used and stack | |
587 | slots rarely (never?) are. Therefore using | |
588 | the stack slot is much less likely to print | |
589 | garbage. | |
8d3b0994 AC |
590 | |
591 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
592 | |
593 | (1) So that the backtrace prints the same value | |
594 | as "print foo". I see no compelling reason | |
595 | why this needs to be the case; having the | |
596 | backtrace print the value which was passed | |
597 | in, and "print foo" print the value as | |
598 | modified within the called function, makes | |
599 | perfect sense to me. | |
600 | ||
601 | Additional note: It might be nice if "info args" | |
602 | displayed both values. | |
603 | ||
604 | One more note: There is a case with SPARC | |
605 | structure passing where we need to use the | |
606 | LOC_REGISTER, but this is dealt with by creating | |
607 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
608 | |
609 | /* Leave sym (the LOC_ARG) alone. */ | |
610 | ; | |
611 | } | |
612 | else | |
613 | sym = nsym; | |
614 | } | |
615 | ||
616 | /* Print the current arg. */ | |
617 | if (!first) | |
618 | ui_out_text (uiout, ", "); | |
619 | ui_out_wrap_hint (uiout, " "); | |
620 | ||
93d86cef JK |
621 | if (!print_args) |
622 | { | |
623 | memset (&arg, 0, sizeof (arg)); | |
624 | arg.sym = sym; | |
e18b2753 JK |
625 | arg.entry_kind = print_entry_values_no; |
626 | memset (&entryarg, 0, sizeof (entryarg)); | |
627 | entryarg.sym = sym; | |
628 | entryarg.entry_kind = print_entry_values_no; | |
93d86cef JK |
629 | } |
630 | else | |
e18b2753 | 631 | read_frame_arg (sym, frame, &arg, &entryarg); |
8d3b0994 | 632 | |
e18b2753 JK |
633 | if (arg.entry_kind != print_entry_values_only) |
634 | print_frame_arg (&arg); | |
635 | ||
636 | if (entryarg.entry_kind != print_entry_values_no) | |
637 | { | |
638 | if (arg.entry_kind != print_entry_values_only) | |
639 | { | |
640 | ui_out_text (uiout, ", "); | |
641 | ui_out_wrap_hint (uiout, " "); | |
642 | } | |
643 | ||
644 | print_frame_arg (&entryarg); | |
645 | } | |
8d3b0994 | 646 | |
93d86cef | 647 | xfree (arg.error); |
e18b2753 | 648 | xfree (entryarg.error); |
8d3b0994 AC |
649 | |
650 | first = 0; | |
651 | } | |
652 | } | |
653 | ||
654 | /* Don't print nameless args in situations where we don't know | |
655 | enough about the stack to find them. */ | |
656 | if (num != -1) | |
657 | { | |
658 | long start; | |
659 | ||
660 | if (highest_offset == -1) | |
7500260a | 661 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
662 | else |
663 | start = highest_offset; | |
664 | ||
033a42c2 | 665 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
666 | first, stream); |
667 | } | |
033a42c2 | 668 | |
8d3b0994 AC |
669 | do_cleanups (old_chain); |
670 | } | |
671 | ||
033a42c2 MK |
672 | /* Set the current source and line to the location given by frame |
673 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
674 | line is in the center of the next 'list'. */ | |
c789492a | 675 | |
7abfe014 | 676 | void |
033a42c2 | 677 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
678 | { |
679 | struct symtab_and_line sal; | |
680 | ||
033a42c2 | 681 | find_frame_sal (frame, &sal); |
c789492a FL |
682 | if (sal.symtab) |
683 | { | |
684 | if (center) | |
685 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
686 | set_current_source_symtab_and_line (&sal); | |
687 | } | |
688 | } | |
689 | ||
30c33a9f HZ |
690 | /* If ON, GDB will display disassembly of the next source line when |
691 | execution of the program being debugged stops. | |
481df73e HZ |
692 | If AUTO (which is the default), or there's no line info to determine |
693 | the source line of the next instruction, display disassembly of next | |
694 | instruction instead. */ | |
30c33a9f HZ |
695 | |
696 | static enum auto_boolean disassemble_next_line; | |
697 | ||
698 | static void | |
699 | show_disassemble_next_line (struct ui_file *file, int from_tty, | |
700 | struct cmd_list_element *c, | |
701 | const char *value) | |
702 | { | |
3e43a32a MS |
703 | fprintf_filtered (file, |
704 | _("Debugger's willingness to use " | |
705 | "disassemble-next-line is %s.\n"), | |
30c33a9f HZ |
706 | value); |
707 | } | |
708 | ||
30c33a9f HZ |
709 | /* Use TRY_CATCH to catch the exception from the gdb_disassembly |
710 | because it will be broken by filter sometime. */ | |
711 | ||
712 | static void | |
13274fc3 UW |
713 | do_gdb_disassembly (struct gdbarch *gdbarch, |
714 | int how_many, CORE_ADDR low, CORE_ADDR high) | |
30c33a9f HZ |
715 | { |
716 | volatile struct gdb_exception exception; | |
30c33a9f | 717 | |
b1d288d3 | 718 | TRY_CATCH (exception, RETURN_MASK_ERROR) |
30c33a9f | 719 | { |
79a45e25 PA |
720 | gdb_disassembly (gdbarch, current_uiout, 0, |
721 | DISASSEMBLY_RAW_INSN, how_many, | |
722 | low, high); | |
30c33a9f | 723 | } |
b1d288d3 JK |
724 | if (exception.reason < 0) |
725 | { | |
726 | /* If an exception was thrown while doing the disassembly, print | |
727 | the error message, to give the user a clue of what happened. */ | |
728 | exception_print (gdb_stderr, exception); | |
729 | } | |
30c33a9f HZ |
730 | } |
731 | ||
033a42c2 | 732 | /* Print information about frame FRAME. The output is format according |
65aa373f | 733 | to PRINT_LEVEL and PRINT_WHAT and PRINT_ARGS. The meaning of |
033a42c2 MK |
734 | PRINT_WHAT is: |
735 | ||
736 | SRC_LINE: Print only source line. | |
737 | LOCATION: Print only location. | |
738 | LOC_AND_SRC: Print location and source line. | |
739 | ||
740 | Used in "where" output, and to emit breakpoint or step | |
741 | messages. */ | |
c906108c | 742 | |
7789c6f5 | 743 | void |
033a42c2 | 744 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 745 | enum print_what print_what, int print_args) |
c906108c | 746 | { |
5af949e3 | 747 | struct gdbarch *gdbarch = get_frame_arch (frame); |
c906108c | 748 | struct symtab_and_line sal; |
c5394b80 JM |
749 | int source_print; |
750 | int location_print; | |
79a45e25 | 751 | struct ui_out *uiout = current_uiout; |
c906108c | 752 | |
033a42c2 | 753 | if (get_frame_type (frame) == DUMMY_FRAME |
36f15f55 UW |
754 | || get_frame_type (frame) == SIGTRAMP_FRAME |
755 | || get_frame_type (frame) == ARCH_FRAME) | |
c906108c | 756 | { |
075559bc AC |
757 | struct cleanup *uiout_cleanup |
758 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 759 | |
033a42c2 | 760 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
5af949e3 | 761 | gdbarch, get_frame_pc (frame)); |
6a3fe0a4 | 762 | |
c906108c | 763 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 764 | to list for this frame. */ |
0faf0076 | 765 | if (print_level) |
52c6a6ac JJ |
766 | { |
767 | ui_out_text (uiout, "#"); | |
0faf0076 | 768 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 769 | frame_relative_level (frame)); |
52c6a6ac | 770 | } |
075559bc | 771 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 772 | { |
075559bc | 773 | annotate_frame_address (); |
5af949e3 UW |
774 | ui_out_field_core_addr (uiout, "addr", |
775 | gdbarch, get_frame_pc (frame)); | |
075559bc | 776 | annotate_frame_address_end (); |
52c6a6ac | 777 | } |
6a3fe0a4 | 778 | |
033a42c2 | 779 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
780 | { |
781 | annotate_function_call (); | |
782 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
783 | } | |
033a42c2 | 784 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
785 | { |
786 | annotate_signal_handler_caller (); | |
787 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
788 | } | |
36f15f55 UW |
789 | else if (get_frame_type (frame) == ARCH_FRAME) |
790 | { | |
791 | ui_out_field_string (uiout, "func", "<cross-architecture call>"); | |
792 | } | |
075559bc | 793 | ui_out_text (uiout, "\n"); |
c906108c | 794 | annotate_frame_end (); |
075559bc AC |
795 | |
796 | do_cleanups (uiout_cleanup); | |
c906108c SS |
797 | return; |
798 | } | |
799 | ||
033a42c2 MK |
800 | /* If FRAME is not the innermost frame, that normally means that |
801 | FRAME->pc points to *after* the call instruction, and we want to | |
802 | get the line containing the call, never the next line. But if | |
803 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
804 | next frame was not entered as the result of a call, and we want | |
805 | to get the line containing FRAME->pc. */ | |
806 | find_frame_sal (frame, &sal); | |
c906108c | 807 | |
0faf0076 AC |
808 | location_print = (print_what == LOCATION |
809 | || print_what == LOC_AND_ADDRESS | |
810 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
811 | |
812 | if (location_print || !sal.symtab) | |
033a42c2 | 813 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 814 | |
0faf0076 | 815 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 816 | |
30c33a9f HZ |
817 | /* If disassemble-next-line is set to auto or on and doesn't have |
818 | the line debug messages for $pc, output the next instruction. */ | |
819 | if ((disassemble_next_line == AUTO_BOOLEAN_AUTO | |
820 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
821 | && source_print && !sal.symtab) | |
13274fc3 UW |
822 | do_gdb_disassembly (get_frame_arch (frame), 1, |
823 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
30c33a9f | 824 | |
c5394b80 JM |
825 | if (source_print && sal.symtab) |
826 | { | |
827 | int done = 0; | |
0faf0076 | 828 | int mid_statement = ((print_what == SRC_LINE) |
edb3359d | 829 | && frame_show_address (frame, sal)); |
c5394b80 JM |
830 | |
831 | if (annotation_level) | |
832 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 833 | get_frame_pc (frame)); |
c5394b80 JM |
834 | if (!done) |
835 | { | |
9a4105ab | 836 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
837 | deprecated_print_frame_info_listing_hook (sal.symtab, |
838 | sal.line, | |
839 | sal.line + 1, 0); | |
ba4bbdcb | 840 | else |
c5394b80 | 841 | { |
79a45b7d | 842 | struct value_print_options opts; |
433759f7 | 843 | |
79a45b7d | 844 | get_user_print_options (&opts); |
ba4bbdcb | 845 | /* We used to do this earlier, but that is clearly |
c378eb4e | 846 | wrong. This function is used by many different |
ba4bbdcb KS |
847 | parts of gdb, including normal_stop in infrun.c, |
848 | which uses this to print out the current PC | |
849 | when we stepi/nexti into the middle of a source | |
c378eb4e MS |
850 | line. Only the command line really wants this |
851 | behavior. Other UIs probably would like the | |
cbd3c883 | 852 | ability to decide for themselves if it is desired. */ |
79a45b7d | 853 | if (opts.addressprint && mid_statement) |
ba4bbdcb | 854 | { |
5af949e3 UW |
855 | ui_out_field_core_addr (uiout, "addr", |
856 | gdbarch, get_frame_pc (frame)); | |
ba4bbdcb | 857 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
858 | } |
859 | ||
860 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 861 | } |
c5394b80 | 862 | } |
30c33a9f HZ |
863 | |
864 | /* If disassemble-next-line is set to on and there is line debug | |
865 | messages, output assembly codes for next line. */ | |
866 | if (disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
2b28d209 | 867 | do_gdb_disassembly (get_frame_arch (frame), -1, sal.pc, sal.end); |
c5394b80 JM |
868 | } |
869 | ||
0faf0076 | 870 | if (print_what != LOCATION) |
e3eebbd7 PA |
871 | { |
872 | CORE_ADDR pc; | |
873 | ||
874 | if (get_frame_pc_if_available (frame, &pc)) | |
875 | set_default_breakpoint (1, sal.pspace, pc, sal.symtab, sal.line); | |
876 | else | |
877 | set_default_breakpoint (0, 0, 0, 0, 0); | |
878 | } | |
c5394b80 JM |
879 | |
880 | annotate_frame_end (); | |
881 | ||
882 | gdb_flush (gdb_stdout); | |
883 | } | |
884 | ||
e9e07ba6 JK |
885 | /* Attempt to obtain the FUNNAME, FUNLANG and optionally FUNCP of the function |
886 | corresponding to FRAME. */ | |
887 | ||
f8f6f20b TJB |
888 | void |
889 | find_frame_funname (struct frame_info *frame, char **funname, | |
e9e07ba6 | 890 | enum language *funlang, struct symbol **funcp) |
c5394b80 JM |
891 | { |
892 | struct symbol *func; | |
8b93c638 | 893 | |
f8f6f20b TJB |
894 | *funname = NULL; |
895 | *funlang = language_unknown; | |
e9e07ba6 JK |
896 | if (funcp) |
897 | *funcp = NULL; | |
c5394b80 | 898 | |
edb3359d | 899 | func = get_frame_function (frame); |
c906108c SS |
900 | if (func) |
901 | { | |
902 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
903 | function (when we are in the first function in a file which |
904 | is compiled without debugging symbols, the previous function | |
905 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
906 | that is supposed to tell us where the file with debugging |
907 | symbols ends has been truncated by ar because it is longer | |
908 | than 15 characters). This also occurs if the user uses asm() | |
909 | to create a function but not stabs for it (in a file compiled | |
910 | with -g). | |
c5aa993b JM |
911 | |
912 | So look in the minimal symbol tables as well, and if it comes | |
913 | up with a larger address for the function use that instead. | |
033a42c2 MK |
914 | I don't think this can ever cause any problems; there |
915 | shouldn't be any minimal symbols in the middle of a function; | |
916 | if this is ever changed many parts of GDB will need to be | |
917 | changed (and we'll create a find_pc_minimal_function or some | |
918 | such). */ | |
919 | ||
edb3359d DJ |
920 | struct minimal_symbol *msymbol = NULL; |
921 | ||
922 | /* Don't attempt to do this for inlined functions, which do not | |
923 | have a corresponding minimal symbol. */ | |
924 | if (!block_inlined_p (SYMBOL_BLOCK_VALUE (func))) | |
925 | msymbol | |
926 | = lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 927 | |
c906108c | 928 | if (msymbol != NULL |
c5aa993b | 929 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
930 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
931 | { | |
c906108c SS |
932 | /* We also don't know anything about the function besides |
933 | its address and name. */ | |
934 | func = 0; | |
f8f6f20b TJB |
935 | *funname = SYMBOL_PRINT_NAME (msymbol); |
936 | *funlang = SYMBOL_LANGUAGE (msymbol); | |
c906108c SS |
937 | } |
938 | else | |
939 | { | |
f8f6f20b TJB |
940 | *funname = SYMBOL_PRINT_NAME (func); |
941 | *funlang = SYMBOL_LANGUAGE (func); | |
e9e07ba6 JK |
942 | if (funcp) |
943 | *funcp = func; | |
f8f6f20b | 944 | if (*funlang == language_cplus) |
c5aa993b | 945 | { |
033a42c2 MK |
946 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
947 | to display the demangled name that we already have | |
948 | stored in the symbol table, but we stored a version | |
949 | with DMGL_PARAMS turned on, and here we don't want to | |
3567439c | 950 | display parameters. So remove the parameters. */ |
f8f6f20b | 951 | char *func_only = cp_remove_params (*funname); |
433759f7 | 952 | |
3567439c DJ |
953 | if (func_only) |
954 | { | |
f8f6f20b | 955 | *funname = func_only; |
3567439c DJ |
956 | make_cleanup (xfree, func_only); |
957 | } | |
c5aa993b | 958 | } |
c906108c SS |
959 | } |
960 | } | |
961 | else | |
962 | { | |
e3eebbd7 PA |
963 | struct minimal_symbol *msymbol; |
964 | CORE_ADDR pc; | |
033a42c2 | 965 | |
e3eebbd7 PA |
966 | if (!get_frame_address_in_block_if_available (frame, &pc)) |
967 | return; | |
968 | ||
969 | msymbol = lookup_minimal_symbol_by_pc (pc); | |
c906108c SS |
970 | if (msymbol != NULL) |
971 | { | |
f8f6f20b TJB |
972 | *funname = SYMBOL_PRINT_NAME (msymbol); |
973 | *funlang = SYMBOL_LANGUAGE (msymbol); | |
c906108c SS |
974 | } |
975 | } | |
f8f6f20b TJB |
976 | } |
977 | ||
978 | static void | |
979 | print_frame (struct frame_info *frame, int print_level, | |
980 | enum print_what print_what, int print_args, | |
981 | struct symtab_and_line sal) | |
982 | { | |
5af949e3 | 983 | struct gdbarch *gdbarch = get_frame_arch (frame); |
79a45e25 | 984 | struct ui_out *uiout = current_uiout; |
f8f6f20b TJB |
985 | char *funname = NULL; |
986 | enum language funlang = language_unknown; | |
987 | struct ui_stream *stb; | |
988 | struct cleanup *old_chain, *list_chain; | |
989 | struct value_print_options opts; | |
e9e07ba6 | 990 | struct symbol *func; |
e3eebbd7 PA |
991 | CORE_ADDR pc = 0; |
992 | int pc_p; | |
993 | ||
994 | pc_p = get_frame_pc_if_available (frame, &pc); | |
f8f6f20b TJB |
995 | |
996 | stb = ui_out_stream_new (uiout); | |
997 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
998 | ||
e9e07ba6 | 999 | find_frame_funname (frame, &funname, &funlang, &func); |
c906108c | 1000 | |
033a42c2 | 1001 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
e3eebbd7 | 1002 | gdbarch, pc); |
c5394b80 | 1003 | |
666547aa | 1004 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
c5394b80 | 1005 | |
0faf0076 | 1006 | if (print_level) |
8b93c638 | 1007 | { |
8b93c638 | 1008 | ui_out_text (uiout, "#"); |
0faf0076 | 1009 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 1010 | frame_relative_level (frame)); |
8b93c638 | 1011 | } |
79a45b7d TT |
1012 | get_user_print_options (&opts); |
1013 | if (opts.addressprint) | |
e3eebbd7 PA |
1014 | if (!sal.symtab |
1015 | || frame_show_address (frame, sal) | |
0faf0076 | 1016 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
1017 | { |
1018 | annotate_frame_address (); | |
e3eebbd7 PA |
1019 | if (pc_p) |
1020 | ui_out_field_core_addr (uiout, "addr", gdbarch, pc); | |
1021 | else | |
1022 | ui_out_field_string (uiout, "addr", "<unavailable>"); | |
8b93c638 JM |
1023 | annotate_frame_address_end (); |
1024 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
1025 | } |
1026 | annotate_frame_function_name (); | |
033a42c2 MK |
1027 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
1028 | funlang, DMGL_ANSI); | |
8b93c638 JM |
1029 | ui_out_field_stream (uiout, "func", stb); |
1030 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
1031 | annotate_frame_args (); |
1032 | ||
8b93c638 | 1033 | ui_out_text (uiout, " ("); |
0faf0076 | 1034 | if (print_args) |
c906108c | 1035 | { |
311b5970 JK |
1036 | struct gdbarch *gdbarch = get_frame_arch (frame); |
1037 | int numargs; | |
d493eb33 | 1038 | struct cleanup *args_list_chain; |
311b5970 | 1039 | volatile struct gdb_exception e; |
433759f7 | 1040 | |
311b5970 JK |
1041 | if (gdbarch_frame_num_args_p (gdbarch)) |
1042 | { | |
1043 | numargs = gdbarch_frame_num_args (gdbarch, frame); | |
1044 | gdb_assert (numargs >= 0); | |
1045 | } | |
1046 | else | |
1047 | numargs = -1; | |
1048 | ||
68c81b54 | 1049 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
311b5970 JK |
1050 | TRY_CATCH (e, RETURN_MASK_ERROR) |
1051 | { | |
1052 | print_frame_args (func, frame, numargs, gdb_stdout); | |
1053 | } | |
c378eb4e | 1054 | /* FIXME: ARGS must be a list. If one argument is a string it |
033a42c2 | 1055 | will have " that will not be properly escaped. */ |
666547aa | 1056 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 1057 | do_cleanups (args_list_chain); |
c5394b80 JM |
1058 | QUIT; |
1059 | } | |
8b93c638 | 1060 | ui_out_text (uiout, ")"); |
c5394b80 JM |
1061 | if (sal.symtab && sal.symtab->filename) |
1062 | { | |
1063 | annotate_frame_source_begin (); | |
8b93c638 JM |
1064 | ui_out_wrap_hint (uiout, " "); |
1065 | ui_out_text (uiout, " at "); | |
1066 | annotate_frame_source_file (); | |
1067 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
1068 | if (ui_out_is_mi_like_p (uiout)) |
1069 | { | |
1070 | const char *fullname = symtab_to_fullname (sal.symtab); | |
433759f7 | 1071 | |
76ff342d DJ |
1072 | if (fullname != NULL) |
1073 | ui_out_field_string (uiout, "fullname", fullname); | |
1074 | } | |
8b93c638 JM |
1075 | annotate_frame_source_file_end (); |
1076 | ui_out_text (uiout, ":"); | |
1077 | annotate_frame_source_line (); | |
1078 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
1079 | annotate_frame_source_end (); |
1080 | } | |
c906108c | 1081 | |
e3eebbd7 | 1082 | if (pc_p && (!funname || (!sal.symtab || !sal.symtab->filename))) |
c906108c | 1083 | { |
a77053c2 | 1084 | #ifdef PC_SOLIB |
033a42c2 | 1085 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 1086 | #else |
6c95b8df PA |
1087 | char *lib = solib_name_from_address (get_frame_program_space (frame), |
1088 | get_frame_pc (frame)); | |
a77053c2 | 1089 | #endif |
c5394b80 | 1090 | if (lib) |
c906108c | 1091 | { |
c5394b80 | 1092 | annotate_frame_where (); |
8b93c638 JM |
1093 | ui_out_wrap_hint (uiout, " "); |
1094 | ui_out_text (uiout, " from "); | |
1095 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 1096 | } |
c906108c | 1097 | } |
e514a9d6 | 1098 | |
666547aa | 1099 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 1100 | do_cleanups (list_chain); |
8b93c638 JM |
1101 | ui_out_text (uiout, "\n"); |
1102 | do_cleanups (old_chain); | |
c906108c SS |
1103 | } |
1104 | \f | |
c5aa993b | 1105 | |
033a42c2 MK |
1106 | /* Read a frame specification in whatever the appropriate format is |
1107 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
1108 | specification is in any way invalid (so this function never returns | |
1109 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
1110 | the default selected frame was used. */ | |
c906108c | 1111 | |
1c8831c5 AC |
1112 | static struct frame_info * |
1113 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
1114 | int *selected_frame_p) | |
c906108c | 1115 | { |
1c8831c5 AC |
1116 | int numargs; |
1117 | struct value *args[4]; | |
1118 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 1119 | |
1c8831c5 AC |
1120 | if (frame_exp == NULL) |
1121 | numargs = 0; | |
1122 | else | |
c906108c | 1123 | { |
1c8831c5 AC |
1124 | numargs = 0; |
1125 | while (1) | |
c906108c | 1126 | { |
1c8831c5 AC |
1127 | char *addr_string; |
1128 | struct cleanup *cleanup; | |
1129 | const char *p; | |
1130 | ||
1131 | /* Skip leading white space, bail of EOL. */ | |
1132 | while (isspace (*frame_exp)) | |
1133 | frame_exp++; | |
1134 | if (!*frame_exp) | |
1135 | break; | |
c906108c | 1136 | |
1c8831c5 AC |
1137 | /* Parse the argument, extract it, save it. */ |
1138 | for (p = frame_exp; | |
1139 | *p && !isspace (*p); | |
1140 | p++); | |
1141 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 1142 | frame_exp = p; |
1c8831c5 AC |
1143 | cleanup = make_cleanup (xfree, addr_string); |
1144 | ||
1145 | /* NOTE: Parse and evaluate expression, but do not use | |
1146 | functions such as parse_and_eval_long or | |
1147 | parse_and_eval_address to also extract the value. | |
1148 | Instead value_as_long and value_as_address are used. | |
1149 | This avoids problems with expressions that contain | |
1150 | side-effects. */ | |
1151 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 1152 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
1153 | args[numargs++] = parse_and_eval (addr_string); |
1154 | ||
1155 | do_cleanups (cleanup); | |
c906108c SS |
1156 | } |
1157 | } | |
1158 | ||
1c8831c5 AC |
1159 | /* If no args, default to the selected frame. */ |
1160 | if (numargs == 0) | |
c906108c | 1161 | { |
1c8831c5 AC |
1162 | if (selected_frame_p != NULL) |
1163 | (*selected_frame_p) = 1; | |
1164 | return get_selected_frame (message); | |
1165 | } | |
c906108c | 1166 | |
1c8831c5 AC |
1167 | /* None of the remaining use the selected frame. */ |
1168 | if (selected_frame_p != NULL) | |
98f276a0 | 1169 | (*selected_frame_p) = 0; |
c906108c | 1170 | |
1c8831c5 AC |
1171 | /* Assume the single arg[0] is an integer, and try using that to |
1172 | select a frame relative to current. */ | |
1173 | if (numargs == 1) | |
1174 | { | |
1175 | struct frame_info *fid; | |
1176 | int level = value_as_long (args[0]); | |
433759f7 | 1177 | |
1c8831c5 AC |
1178 | fid = find_relative_frame (get_current_frame (), &level); |
1179 | if (level == 0) | |
c378eb4e | 1180 | /* find_relative_frame was successful. */ |
1c8831c5 AC |
1181 | return fid; |
1182 | } | |
c906108c | 1183 | |
1c8831c5 AC |
1184 | /* Convert each value into a corresponding address. */ |
1185 | { | |
1186 | int i; | |
433759f7 | 1187 | |
1c8831c5 | 1188 | for (i = 0; i < numargs; i++) |
1e275f79 | 1189 | addrs[i] = value_as_address (args[i]); |
1c8831c5 | 1190 | } |
c5aa993b | 1191 | |
1c8831c5 AC |
1192 | /* Assume that the single arg[0] is an address, use that to identify |
1193 | a frame with a matching ID. Should this also accept stack/pc or | |
1194 | stack/pc/special. */ | |
1195 | if (numargs == 1) | |
1196 | { | |
1197 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
1198 | struct frame_info *fid; | |
1199 | ||
1c8831c5 AC |
1200 | /* If (s)he specifies the frame with an address, he deserves |
1201 | what (s)he gets. Still, give the highest one that matches. | |
1202 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
1203 | know). */ | |
1204 | for (fid = get_current_frame (); | |
1205 | fid != NULL; | |
1206 | fid = get_prev_frame (fid)) | |
1207 | { | |
1208 | if (frame_id_eq (id, get_frame_id (fid))) | |
1209 | { | |
c7ce8faa DJ |
1210 | struct frame_info *prev_frame; |
1211 | ||
1212 | while (1) | |
1213 | { | |
1214 | prev_frame = get_prev_frame (fid); | |
1215 | if (!prev_frame | |
1216 | || !frame_id_eq (id, get_frame_id (prev_frame))) | |
1217 | break; | |
1218 | fid = prev_frame; | |
1219 | } | |
1c8831c5 AC |
1220 | return fid; |
1221 | } | |
1222 | } | |
c906108c SS |
1223 | } |
1224 | ||
1c8831c5 AC |
1225 | /* We couldn't identify the frame as an existing frame, but |
1226 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
1227 | if (numargs == 1) |
1228 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
1229 | else if (numargs == 2) |
1230 | return create_new_frame (addrs[0], addrs[1]); | |
1231 | else | |
8a3fe4f8 | 1232 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
1233 | } |
1234 | ||
9c833c82 | 1235 | static struct frame_info * |
1c8831c5 AC |
1236 | parse_frame_specification (char *frame_exp) |
1237 | { | |
1238 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
1239 | } |
1240 | ||
033a42c2 MK |
1241 | /* Print verbosely the selected frame or the frame at address |
1242 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
1243 | |
1244 | static void | |
fba45db2 | 1245 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
1246 | { |
1247 | struct frame_info *fi; | |
1248 | struct symtab_and_line sal; | |
1249 | struct symbol *func; | |
1250 | struct symtab *s; | |
1251 | struct frame_info *calling_frame_info; | |
167e4384 | 1252 | int numregs; |
c906108c SS |
1253 | char *funname = 0; |
1254 | enum language funlang = language_unknown; | |
82de1e5b | 1255 | const char *pc_regname; |
1c8831c5 | 1256 | int selected_frame_p; |
7500260a | 1257 | struct gdbarch *gdbarch; |
3567439c | 1258 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
008f8f2e PA |
1259 | CORE_ADDR frame_pc; |
1260 | int frame_pc_p; | |
1261 | CORE_ADDR caller_pc; | |
c906108c | 1262 | |
1c8831c5 | 1263 | fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p); |
12368003 | 1264 | gdbarch = get_frame_arch (fi); |
c906108c | 1265 | |
82de1e5b AC |
1266 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
1267 | is not a good name. */ | |
12368003 | 1268 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1269 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
1270 | easily not match that of the internal value returned by |
1271 | get_frame_pc(). */ | |
12368003 | 1272 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 1273 | else |
3e8c568d | 1274 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
1275 | architectures will often have a hardware register called "pc", |
1276 | and that register's value, again, can easily not match | |
1277 | get_frame_pc(). */ | |
1278 | pc_regname = "pc"; | |
1279 | ||
008f8f2e | 1280 | frame_pc_p = get_frame_pc_if_available (fi, &frame_pc); |
1058bca7 | 1281 | find_frame_sal (fi, &sal); |
c906108c | 1282 | func = get_frame_function (fi); |
008f8f2e | 1283 | s = sal.symtab; |
c906108c SS |
1284 | if (func) |
1285 | { | |
3567439c | 1286 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b JM |
1287 | funlang = SYMBOL_LANGUAGE (func); |
1288 | if (funlang == language_cplus) | |
1289 | { | |
3567439c DJ |
1290 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
1291 | to display the demangled name that we already have | |
1292 | stored in the symbol table, but we stored a version | |
1293 | with DMGL_PARAMS turned on, and here we don't want to | |
1294 | display parameters. So remove the parameters. */ | |
1295 | char *func_only = cp_remove_params (funname); | |
433759f7 | 1296 | |
3567439c DJ |
1297 | if (func_only) |
1298 | { | |
1299 | funname = func_only; | |
1300 | make_cleanup (xfree, func_only); | |
1301 | } | |
c5aa993b | 1302 | } |
c906108c | 1303 | } |
008f8f2e | 1304 | else if (frame_pc_p) |
c906108c | 1305 | { |
033a42c2 MK |
1306 | struct minimal_symbol *msymbol; |
1307 | ||
008f8f2e | 1308 | msymbol = lookup_minimal_symbol_by_pc (frame_pc); |
c906108c SS |
1309 | if (msymbol != NULL) |
1310 | { | |
3567439c | 1311 | funname = SYMBOL_PRINT_NAME (msymbol); |
c906108c SS |
1312 | funlang = SYMBOL_LANGUAGE (msymbol); |
1313 | } | |
1314 | } | |
1315 | calling_frame_info = get_prev_frame (fi); | |
1316 | ||
1c8831c5 | 1317 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 1318 | { |
a3f17187 | 1319 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 1320 | frame_relative_level (fi)); |
c906108c SS |
1321 | } |
1322 | else | |
1323 | { | |
a3f17187 | 1324 | printf_filtered (_("Stack frame at ")); |
c906108c | 1325 | } |
5af949e3 | 1326 | fputs_filtered (paddress (gdbarch, get_frame_base (fi)), gdb_stdout); |
9c833c82 | 1327 | printf_filtered (":\n"); |
82de1e5b | 1328 | printf_filtered (" %s = ", pc_regname); |
008f8f2e PA |
1329 | if (frame_pc_p) |
1330 | fputs_filtered (paddress (gdbarch, get_frame_pc (fi)), gdb_stdout); | |
1331 | else | |
1332 | fputs_filtered ("<unavailable>", gdb_stdout); | |
c906108c SS |
1333 | |
1334 | wrap_here (" "); | |
1335 | if (funname) | |
1336 | { | |
1337 | printf_filtered (" in "); | |
1338 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
1339 | DMGL_ANSI | DMGL_PARAMS); | |
1340 | } | |
1341 | wrap_here (" "); | |
1342 | if (sal.symtab) | |
1343 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
1344 | puts_filtered ("; "); | |
1345 | wrap_here (" "); | |
82de1e5b | 1346 | printf_filtered ("saved %s ", pc_regname); |
008f8f2e PA |
1347 | if (frame_unwind_caller_pc_if_available (fi, &caller_pc)) |
1348 | fputs_filtered (paddress (gdbarch, caller_pc), gdb_stdout); | |
1349 | else | |
1350 | fputs_filtered ("<unavailable>", gdb_stdout); | |
c906108c SS |
1351 | printf_filtered ("\n"); |
1352 | ||
55feb689 DJ |
1353 | if (calling_frame_info == NULL) |
1354 | { | |
1355 | enum unwind_stop_reason reason; | |
1356 | ||
1357 | reason = get_frame_unwind_stop_reason (fi); | |
1358 | if (reason != UNWIND_NO_REASON) | |
1359 | printf_filtered (_(" Outermost frame: %s\n"), | |
1360 | frame_stop_reason_string (reason)); | |
1361 | } | |
111c6489 JK |
1362 | else if (get_frame_type (fi) == TAILCALL_FRAME) |
1363 | puts_filtered (" tail call frame"); | |
edb3359d DJ |
1364 | else if (get_frame_type (fi) == INLINE_FRAME) |
1365 | printf_filtered (" inlined into frame %d", | |
1366 | frame_relative_level (get_prev_frame (fi))); | |
1367 | else | |
c906108c SS |
1368 | { |
1369 | printf_filtered (" called by frame at "); | |
5af949e3 | 1370 | fputs_filtered (paddress (gdbarch, get_frame_base (calling_frame_info)), |
ed49a04f | 1371 | gdb_stdout); |
c906108c | 1372 | } |
75e3c1f9 | 1373 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
1374 | puts_filtered (","); |
1375 | wrap_here (" "); | |
75e3c1f9 | 1376 | if (get_next_frame (fi)) |
c906108c SS |
1377 | { |
1378 | printf_filtered (" caller of frame at "); | |
5af949e3 | 1379 | fputs_filtered (paddress (gdbarch, get_frame_base (get_next_frame (fi))), |
ed49a04f | 1380 | gdb_stdout); |
c906108c | 1381 | } |
75e3c1f9 | 1382 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1383 | puts_filtered ("\n"); |
55feb689 | 1384 | |
c906108c | 1385 | if (s) |
1058bca7 AC |
1386 | printf_filtered (" source language %s.\n", |
1387 | language_str (s->language)); | |
c906108c | 1388 | |
c906108c SS |
1389 | { |
1390 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1391 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1392 | /* Number of args for this frame, or -1 if unknown. */ |
1393 | int numargs; | |
1394 | ||
1395 | if (arg_list == 0) | |
1396 | printf_filtered (" Arglist at unknown address.\n"); | |
1397 | else | |
1398 | { | |
1399 | printf_filtered (" Arglist at "); | |
5af949e3 | 1400 | fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout); |
c906108c SS |
1401 | printf_filtered (","); |
1402 | ||
7500260a | 1403 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1404 | { |
1405 | numargs = -1; | |
1406 | puts_filtered (" args: "); | |
1407 | } | |
c906108c | 1408 | else |
983a287a | 1409 | { |
7500260a | 1410 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1411 | gdb_assert (numargs >= 0); |
1412 | if (numargs == 0) | |
1413 | puts_filtered (" no args."); | |
1414 | else if (numargs == 1) | |
1415 | puts_filtered (" 1 arg: "); | |
1416 | else | |
1417 | printf_filtered (" %d args: ", numargs); | |
1418 | } | |
c906108c SS |
1419 | print_frame_args (func, fi, numargs, gdb_stdout); |
1420 | puts_filtered ("\n"); | |
1421 | } | |
1422 | } | |
1423 | { | |
1424 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1425 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1426 | |
1427 | if (arg_list == 0) | |
1428 | printf_filtered (" Locals at unknown address,"); | |
1429 | else | |
1430 | { | |
1431 | printf_filtered (" Locals at "); | |
5af949e3 | 1432 | fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout); |
c906108c SS |
1433 | printf_filtered (","); |
1434 | } | |
1435 | } | |
1436 | ||
4f460812 AC |
1437 | /* Print as much information as possible on the location of all the |
1438 | registers. */ | |
1439 | { | |
1440 | enum lval_type lval; | |
1441 | int optimized; | |
0fdb4f18 | 1442 | int unavailable; |
4f460812 AC |
1443 | CORE_ADDR addr; |
1444 | int realnum; | |
1445 | int count; | |
1446 | int i; | |
1447 | int need_nl = 1; | |
1448 | ||
1449 | /* The sp is special; what's displayed isn't the save address, but | |
1450 | the value of the previous frame's sp. This is a legacy thing, | |
1451 | at one stage the frame cached the previous frame's SP instead | |
1452 | of its address, hence it was easiest to just display the cached | |
1453 | value. */ | |
7500260a | 1454 | if (gdbarch_sp_regnum (gdbarch) >= 0) |
4f460812 AC |
1455 | { |
1456 | /* Find out the location of the saved stack pointer with out | |
1457 | actually evaluating it. */ | |
7500260a | 1458 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
0fdb4f18 | 1459 | &optimized, &unavailable, &lval, &addr, |
4f460812 | 1460 | &realnum, NULL); |
0fdb4f18 | 1461 | if (!optimized && !unavailable && lval == not_lval) |
c906108c | 1462 | { |
e17a4113 UW |
1463 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
1464 | int sp_size = register_size (gdbarch, gdbarch_sp_regnum (gdbarch)); | |
10c42a71 | 1465 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 | 1466 | CORE_ADDR sp; |
433759f7 | 1467 | |
7500260a | 1468 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
0fdb4f18 | 1469 | &optimized, &unavailable, &lval, &addr, |
4f460812 | 1470 | &realnum, value); |
af1342ab AC |
1471 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1472 | stack pointer was packed as an unsigned integer. That | |
1473 | may or may not be valid. */ | |
e17a4113 | 1474 | sp = extract_unsigned_integer (value, sp_size, byte_order); |
4f460812 | 1475 | printf_filtered (" Previous frame's sp is "); |
5af949e3 | 1476 | fputs_filtered (paddress (gdbarch, sp), gdb_stdout); |
4f460812 AC |
1477 | printf_filtered ("\n"); |
1478 | need_nl = 0; | |
c906108c | 1479 | } |
0fdb4f18 | 1480 | else if (!optimized && !unavailable && lval == lval_memory) |
4f460812 AC |
1481 | { |
1482 | printf_filtered (" Previous frame's sp at "); | |
5af949e3 | 1483 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
4f460812 AC |
1484 | printf_filtered ("\n"); |
1485 | need_nl = 0; | |
1486 | } | |
0fdb4f18 | 1487 | else if (!optimized && !unavailable && lval == lval_register) |
4f460812 AC |
1488 | { |
1489 | printf_filtered (" Previous frame's sp in %s\n", | |
7500260a | 1490 | gdbarch_register_name (gdbarch, realnum)); |
4f460812 AC |
1491 | need_nl = 0; |
1492 | } | |
1493 | /* else keep quiet. */ | |
1494 | } | |
1495 | ||
1496 | count = 0; | |
7500260a UW |
1497 | numregs = gdbarch_num_regs (gdbarch) |
1498 | + gdbarch_num_pseudo_regs (gdbarch); | |
4f460812 | 1499 | for (i = 0; i < numregs; i++) |
7500260a UW |
1500 | if (i != gdbarch_sp_regnum (gdbarch) |
1501 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) | |
4f460812 AC |
1502 | { |
1503 | /* Find out the location of the saved register without | |
1504 | fetching the corresponding value. */ | |
0fdb4f18 PA |
1505 | frame_register_unwind (fi, i, &optimized, &unavailable, |
1506 | &lval, &addr, &realnum, NULL); | |
4f460812 AC |
1507 | /* For moment, only display registers that were saved on the |
1508 | stack. */ | |
0fdb4f18 | 1509 | if (!optimized && !unavailable && lval == lval_memory) |
4f460812 AC |
1510 | { |
1511 | if (count == 0) | |
1512 | puts_filtered (" Saved registers:\n "); | |
1513 | else | |
1514 | puts_filtered (","); | |
1515 | wrap_here (" "); | |
c9f4d572 | 1516 | printf_filtered (" %s at ", |
7500260a | 1517 | gdbarch_register_name (gdbarch, i)); |
5af949e3 | 1518 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
4f460812 AC |
1519 | count++; |
1520 | } | |
1521 | } | |
1522 | if (count || need_nl) | |
c906108c | 1523 | puts_filtered ("\n"); |
4f460812 | 1524 | } |
3567439c DJ |
1525 | |
1526 | do_cleanups (back_to); | |
c906108c SS |
1527 | } |
1528 | ||
033a42c2 MK |
1529 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1530 | frames. */ | |
c906108c SS |
1531 | |
1532 | static void | |
fba45db2 | 1533 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1534 | { |
1535 | struct frame_info *fi; | |
52f0bd74 AC |
1536 | int count; |
1537 | int i; | |
1538 | struct frame_info *trailing; | |
1539 | int trailing_level; | |
c906108c SS |
1540 | |
1541 | if (!target_has_stack) | |
8a3fe4f8 | 1542 | error (_("No stack.")); |
c906108c | 1543 | |
033a42c2 MK |
1544 | /* The following code must do two things. First, it must set the |
1545 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1546 | printing. Second, it must set the variable count to the number |
1547 | of frames which we should print, or -1 if all of them. */ | |
1548 | trailing = get_current_frame (); | |
d082b2bb | 1549 | |
c906108c SS |
1550 | trailing_level = 0; |
1551 | if (count_exp) | |
1552 | { | |
bb518678 | 1553 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1554 | if (count < 0) |
1555 | { | |
1556 | struct frame_info *current; | |
1557 | ||
1558 | count = -count; | |
1559 | ||
1560 | current = trailing; | |
1561 | while (current && count--) | |
1562 | { | |
1563 | QUIT; | |
1564 | current = get_prev_frame (current); | |
1565 | } | |
c5aa993b | 1566 | |
033a42c2 MK |
1567 | /* Will stop when CURRENT reaches the top of the stack. |
1568 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1569 | while (current) |
1570 | { | |
1571 | QUIT; | |
1572 | trailing = get_prev_frame (trailing); | |
1573 | current = get_prev_frame (current); | |
1574 | trailing_level++; | |
1575 | } | |
c5aa993b | 1576 | |
c906108c SS |
1577 | count = -1; |
1578 | } | |
1579 | } | |
1580 | else | |
1581 | count = -1; | |
1582 | ||
1583 | if (info_verbose) | |
1584 | { | |
033a42c2 MK |
1585 | /* Read in symbols for all of the frames. Need to do this in a |
1586 | separate pass so that "Reading in symbols for xxx" messages | |
1587 | don't screw up the appearance of the backtrace. Also if | |
1588 | people have strong opinions against reading symbols for | |
c5aa993b | 1589 | backtrace this may have to be an option. */ |
c906108c | 1590 | i = count; |
033a42c2 | 1591 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c | 1592 | { |
ccefe4c4 | 1593 | CORE_ADDR pc; |
433759f7 | 1594 | |
c906108c | 1595 | QUIT; |
ccefe4c4 TT |
1596 | pc = get_frame_address_in_block (fi); |
1597 | find_pc_sect_symtab_via_partial (pc, find_pc_mapped_section (pc)); | |
c906108c SS |
1598 | } |
1599 | } | |
1600 | ||
033a42c2 | 1601 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1602 | { |
1603 | QUIT; | |
1604 | ||
1605 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1606 | means further attempts to backtrace would fail (on the other |
1607 | hand, perhaps the code does or could be fixed to make sure | |
1608 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1609 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1610 | if (show_locals) |
c5aa993b | 1611 | print_frame_local_vars (fi, 1, gdb_stdout); |
55feb689 DJ |
1612 | |
1613 | /* Save the last frame to check for error conditions. */ | |
1614 | trailing = fi; | |
c906108c SS |
1615 | } |
1616 | ||
1617 | /* If we've stopped before the end, mention that. */ | |
1618 | if (fi && from_tty) | |
a3f17187 | 1619 | printf_filtered (_("(More stack frames follow...)\n")); |
55feb689 DJ |
1620 | |
1621 | /* If we've run out of frames, and the reason appears to be an error | |
1622 | condition, print it. */ | |
1623 | if (fi == NULL && trailing != NULL) | |
1624 | { | |
1625 | enum unwind_stop_reason reason; | |
1626 | ||
1627 | reason = get_frame_unwind_stop_reason (trailing); | |
2231f1fb | 1628 | if (reason >= UNWIND_FIRST_ERROR) |
55feb689 DJ |
1629 | printf_filtered (_("Backtrace stopped: %s\n"), |
1630 | frame_stop_reason_string (reason)); | |
1631 | } | |
c906108c SS |
1632 | } |
1633 | ||
1634 | static void | |
fba45db2 | 1635 | backtrace_command (char *arg, int from_tty) |
c906108c | 1636 | { |
5fe41fbf | 1637 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); |
033a42c2 | 1638 | int fulltrace_arg = -1, arglen = 0, argc = 0; |
c906108c | 1639 | |
033a42c2 | 1640 | if (arg) |
c906108c | 1641 | { |
033a42c2 | 1642 | char **argv; |
c906108c SS |
1643 | int i; |
1644 | ||
d1a41061 | 1645 | argv = gdb_buildargv (arg); |
5fe41fbf | 1646 | make_cleanup_freeargv (argv); |
c906108c | 1647 | argc = 0; |
033a42c2 | 1648 | for (i = 0; argv[i]; i++) |
c5aa993b | 1649 | { |
745b8ca0 | 1650 | unsigned int j; |
c5aa993b | 1651 | |
033a42c2 | 1652 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1653 | argv[i][j] = tolower (argv[i][j]); |
1654 | ||
033a42c2 MK |
1655 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1656 | fulltrace_arg = argc; | |
c5aa993b JM |
1657 | else |
1658 | { | |
033a42c2 | 1659 | arglen += strlen (argv[i]); |
c5aa993b | 1660 | argc++; |
c5aa993b JM |
1661 | } |
1662 | } | |
033a42c2 MK |
1663 | arglen += argc; |
1664 | if (fulltrace_arg >= 0) | |
c5aa993b | 1665 | { |
033a42c2 | 1666 | if (arglen > 0) |
c5aa993b | 1667 | { |
033a42c2 | 1668 | arg = xmalloc (arglen + 1); |
b1d288d3 JK |
1669 | make_cleanup (xfree, arg); |
1670 | arg[0] = 0; | |
033a42c2 | 1671 | for (i = 0; i < (argc + 1); i++) |
c5aa993b | 1672 | { |
033a42c2 | 1673 | if (i != fulltrace_arg) |
c5aa993b | 1674 | { |
033a42c2 MK |
1675 | strcat (arg, argv[i]); |
1676 | strcat (arg, " "); | |
c5aa993b JM |
1677 | } |
1678 | } | |
1679 | } | |
1680 | else | |
033a42c2 | 1681 | arg = NULL; |
c5aa993b | 1682 | } |
c906108c SS |
1683 | } |
1684 | ||
b1d288d3 | 1685 | backtrace_command_1 (arg, fulltrace_arg >= 0 /* show_locals */, from_tty); |
c906108c | 1686 | |
5fe41fbf | 1687 | do_cleanups (old_chain); |
c906108c SS |
1688 | } |
1689 | ||
1690 | static void | |
fba45db2 | 1691 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1692 | { |
b1d288d3 | 1693 | backtrace_command_1 (arg, 1 /* show_locals */, from_tty); |
c906108c | 1694 | } |
c906108c | 1695 | \f |
c5aa993b | 1696 | |
2c58c0a9 PA |
1697 | /* Iterate over the local variables of a block B, calling CB with |
1698 | CB_DATA. */ | |
c906108c | 1699 | |
2c58c0a9 PA |
1700 | static void |
1701 | iterate_over_block_locals (struct block *b, | |
1702 | iterate_over_block_arg_local_vars_cb cb, | |
1703 | void *cb_data) | |
c906108c | 1704 | { |
de4f826b | 1705 | struct dict_iterator iter; |
de4f826b | 1706 | struct symbol *sym; |
c906108c | 1707 | |
de4f826b | 1708 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1709 | { |
c906108c SS |
1710 | switch (SYMBOL_CLASS (sym)) |
1711 | { | |
1712 | case LOC_LOCAL: | |
1713 | case LOC_REGISTER: | |
1714 | case LOC_STATIC: | |
4c2df51b | 1715 | case LOC_COMPUTED: |
2a2d4dc3 AS |
1716 | if (SYMBOL_IS_ARGUMENT (sym)) |
1717 | break; | |
2c58c0a9 | 1718 | (*cb) (SYMBOL_PRINT_NAME (sym), sym, cb_data); |
c906108c SS |
1719 | break; |
1720 | ||
1721 | default: | |
1722 | /* Ignore symbols which are not locals. */ | |
1723 | break; | |
1724 | } | |
1725 | } | |
c906108c SS |
1726 | } |
1727 | ||
65c06092 | 1728 | |
c906108c SS |
1729 | /* Same, but print labels. */ |
1730 | ||
65c06092 JB |
1731 | #if 0 |
1732 | /* Commented out, as the code using this function has also been | |
1733 | commented out. FIXME:brobecker/2009-01-13: Find out why the code | |
1734 | was commented out in the first place. The discussion introducing | |
1735 | this change (2007-12-04: Support lexical blocks and function bodies | |
1736 | that occupy non-contiguous address ranges) did not explain why | |
1737 | this change was made. */ | |
c906108c | 1738 | static int |
5af949e3 UW |
1739 | print_block_frame_labels (struct gdbarch *gdbarch, struct block *b, |
1740 | int *have_default, struct ui_file *stream) | |
c906108c | 1741 | { |
de4f826b | 1742 | struct dict_iterator iter; |
52f0bd74 AC |
1743 | struct symbol *sym; |
1744 | int values_printed = 0; | |
c906108c | 1745 | |
de4f826b | 1746 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1747 | { |
3567439c | 1748 | if (strcmp (SYMBOL_LINKAGE_NAME (sym), "default") == 0) |
c906108c SS |
1749 | { |
1750 | if (*have_default) | |
1751 | continue; | |
1752 | *have_default = 1; | |
1753 | } | |
1754 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1755 | { | |
1756 | struct symtab_and_line sal; | |
79a45b7d | 1757 | struct value_print_options opts; |
433759f7 | 1758 | |
c906108c SS |
1759 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); |
1760 | values_printed = 1; | |
de5ad195 | 1761 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
79a45b7d TT |
1762 | get_user_print_options (&opts); |
1763 | if (opts.addressprint) | |
c906108c SS |
1764 | { |
1765 | fprintf_filtered (stream, " "); | |
5af949e3 UW |
1766 | fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (sym)), |
1767 | stream); | |
c906108c SS |
1768 | } |
1769 | fprintf_filtered (stream, " in file %s, line %d\n", | |
1770 | sal.symtab->filename, sal.line); | |
1771 | } | |
1772 | } | |
033a42c2 | 1773 | |
c906108c SS |
1774 | return values_printed; |
1775 | } | |
65c06092 | 1776 | #endif |
c906108c | 1777 | |
2c58c0a9 PA |
1778 | /* Iterate over all the local variables in block B, including all its |
1779 | superblocks, stopping when the top-level block is reached. */ | |
1780 | ||
1781 | void | |
1782 | iterate_over_block_local_vars (struct block *block, | |
1783 | iterate_over_block_arg_local_vars_cb cb, | |
1784 | void *cb_data) | |
1785 | { | |
1786 | while (block) | |
1787 | { | |
1788 | iterate_over_block_locals (block, cb, cb_data); | |
1789 | /* After handling the function's top-level block, stop. Don't | |
1790 | continue to its superblock, the block of per-file | |
1791 | symbols. */ | |
1792 | if (BLOCK_FUNCTION (block)) | |
1793 | break; | |
1794 | block = BLOCK_SUPERBLOCK (block); | |
1795 | } | |
1796 | } | |
1797 | ||
1798 | /* Data to be passed around in the calls to the locals and args | |
1799 | iterators. */ | |
c906108c | 1800 | |
2c58c0a9 PA |
1801 | struct print_variable_and_value_data |
1802 | { | |
1803 | struct frame_info *frame; | |
1804 | int num_tabs; | |
1805 | struct ui_file *stream; | |
1806 | int values_printed; | |
1807 | }; | |
1808 | ||
c378eb4e | 1809 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
1810 | |
1811 | static void | |
1812 | do_print_variable_and_value (const char *print_name, | |
1813 | struct symbol *sym, | |
1814 | void *cb_data) | |
1815 | { | |
1816 | struct print_variable_and_value_data *p = cb_data; | |
1817 | ||
1818 | print_variable_and_value (print_name, sym, | |
1819 | p->frame, p->stream, p->num_tabs); | |
1820 | p->values_printed = 1; | |
1821 | } | |
c906108c SS |
1822 | |
1823 | static void | |
033a42c2 | 1824 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 1825 | struct ui_file *stream) |
c906108c | 1826 | { |
2c58c0a9 PA |
1827 | struct print_variable_and_value_data cb_data; |
1828 | struct block *block; | |
1d4f5741 PA |
1829 | CORE_ADDR pc; |
1830 | ||
1831 | if (!get_frame_pc_if_available (frame, &pc)) | |
1832 | { | |
1833 | fprintf_filtered (stream, | |
1834 | _("PC unavailable, cannot determine locals.\n")); | |
1835 | return; | |
1836 | } | |
c906108c | 1837 | |
2c58c0a9 | 1838 | block = get_frame_block (frame, 0); |
c906108c SS |
1839 | if (block == 0) |
1840 | { | |
1841 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1842 | return; | |
1843 | } | |
c5aa993b | 1844 | |
2c58c0a9 PA |
1845 | cb_data.frame = frame; |
1846 | cb_data.num_tabs = 4 * num_tabs; | |
1847 | cb_data.stream = stream; | |
1848 | cb_data.values_printed = 0; | |
1849 | ||
1850 | iterate_over_block_local_vars (block, | |
1851 | do_print_variable_and_value, | |
1852 | &cb_data); | |
c906108c | 1853 | |
2c58c0a9 | 1854 | if (!cb_data.values_printed) |
033a42c2 | 1855 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
1856 | } |
1857 | ||
1858 | /* Same, but print labels. */ | |
1859 | ||
1860 | static void | |
033a42c2 | 1861 | print_frame_label_vars (struct frame_info *frame, int this_level_only, |
aa1ee363 | 1862 | struct ui_file *stream) |
c906108c | 1863 | { |
801e3a5b JB |
1864 | #if 1 |
1865 | fprintf_filtered (stream, "print_frame_label_vars disabled.\n"); | |
1866 | #else | |
52f0bd74 | 1867 | struct blockvector *bl; |
033a42c2 | 1868 | struct block *block = get_frame_block (frame, 0); |
5af949e3 | 1869 | struct gdbarch *gdbarch = get_frame_arch (frame); |
52f0bd74 | 1870 | int values_printed = 0; |
c906108c SS |
1871 | int index, have_default = 0; |
1872 | char *blocks_printed; | |
033a42c2 | 1873 | CORE_ADDR pc = get_frame_pc (frame); |
c906108c SS |
1874 | |
1875 | if (block == 0) | |
1876 | { | |
1877 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1878 | return; | |
1879 | } | |
1880 | ||
1881 | bl = blockvector_for_pc (BLOCK_END (block) - 4, &index); | |
033a42c2 | 1882 | blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
c906108c SS |
1883 | memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
1884 | ||
1885 | while (block != 0) | |
1886 | { | |
1887 | CORE_ADDR end = BLOCK_END (block) - 4; | |
1888 | int last_index; | |
1889 | ||
1890 | if (bl != blockvector_for_pc (end, &index)) | |
8a3fe4f8 | 1891 | error (_("blockvector blotch")); |
c906108c | 1892 | if (BLOCKVECTOR_BLOCK (bl, index) != block) |
8a3fe4f8 | 1893 | error (_("blockvector botch")); |
c906108c SS |
1894 | last_index = BLOCKVECTOR_NBLOCKS (bl); |
1895 | index += 1; | |
1896 | ||
1897 | /* Don't print out blocks that have gone by. */ | |
1898 | while (index < last_index | |
1899 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc) | |
1900 | index++; | |
1901 | ||
1902 | while (index < last_index | |
1903 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end) | |
1904 | { | |
1905 | if (blocks_printed[index] == 0) | |
1906 | { | |
5af949e3 UW |
1907 | if (print_block_frame_labels (gdbarch, |
1908 | BLOCKVECTOR_BLOCK (bl, index), | |
033a42c2 | 1909 | &have_default, stream)) |
c906108c SS |
1910 | values_printed = 1; |
1911 | blocks_printed[index] = 1; | |
1912 | } | |
1913 | index++; | |
1914 | } | |
1915 | if (have_default) | |
1916 | return; | |
1917 | if (values_printed && this_level_only) | |
1918 | return; | |
1919 | ||
033a42c2 | 1920 | /* After handling the function's top-level block, stop. Don't |
edb3359d DJ |
1921 | continue to its superblock, the block of per-file symbols. |
1922 | Also do not continue to the containing function of an inlined | |
1923 | function. */ | |
c906108c SS |
1924 | if (BLOCK_FUNCTION (block)) |
1925 | break; | |
1926 | block = BLOCK_SUPERBLOCK (block); | |
1927 | } | |
1928 | ||
1929 | if (!values_printed && !this_level_only) | |
033a42c2 | 1930 | fprintf_filtered (stream, _("No catches.\n")); |
801e3a5b | 1931 | #endif |
c906108c SS |
1932 | } |
1933 | ||
c906108c | 1934 | void |
fba45db2 | 1935 | locals_info (char *args, int from_tty) |
c906108c | 1936 | { |
033a42c2 | 1937 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1938 | 0, gdb_stdout); |
c906108c SS |
1939 | } |
1940 | ||
1941 | static void | |
fba45db2 | 1942 | catch_info (char *ignore, int from_tty) |
c906108c | 1943 | { |
dfdfb3ca JB |
1944 | /* Assume g++ compiled code; old GDB 4.16 behaviour. */ |
1945 | print_frame_label_vars (get_selected_frame (_("No frame selected.")), | |
1946 | 0, gdb_stdout); | |
c906108c SS |
1947 | } |
1948 | ||
2c58c0a9 PA |
1949 | /* Iterate over all the argument variables in block B. |
1950 | ||
1951 | Returns 1 if any argument was walked; 0 otherwise. */ | |
1952 | ||
1953 | void | |
1954 | iterate_over_block_arg_vars (struct block *b, | |
1955 | iterate_over_block_arg_local_vars_cb cb, | |
1956 | void *cb_data) | |
c906108c | 1957 | { |
de4f826b | 1958 | struct dict_iterator iter; |
52f0bd74 | 1959 | struct symbol *sym, *sym2; |
c906108c | 1960 | |
de4f826b | 1961 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1962 | { |
2a2d4dc3 AS |
1963 | /* Don't worry about things which aren't arguments. */ |
1964 | if (SYMBOL_IS_ARGUMENT (sym)) | |
c906108c | 1965 | { |
c906108c SS |
1966 | /* We have to look up the symbol because arguments can have |
1967 | two entries (one a parameter, one a local) and the one we | |
1968 | want is the local, which lookup_symbol will find for us. | |
1969 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1970 | small structure and gcc2 when the argument type is float | |
1971 | and it is passed as a double and converted to float by | |
1972 | the prologue (in the latter case the type of the LOC_ARG | |
1973 | symbol is double and the type of the LOC_LOCAL symbol is | |
1974 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
1975 | are not combined in symbol-reading. */ | |
1976 | ||
3567439c | 1977 | sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), |
2570f2b7 | 1978 | b, VAR_DOMAIN, NULL); |
2c58c0a9 | 1979 | (*cb) (SYMBOL_PRINT_NAME (sym), sym2, cb_data); |
c906108c SS |
1980 | } |
1981 | } | |
2c58c0a9 PA |
1982 | } |
1983 | ||
1984 | static void | |
1985 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) | |
1986 | { | |
1987 | struct print_variable_and_value_data cb_data; | |
1988 | struct symbol *func; | |
1d4f5741 PA |
1989 | CORE_ADDR pc; |
1990 | ||
1991 | if (!get_frame_pc_if_available (frame, &pc)) | |
1992 | { | |
1993 | fprintf_filtered (stream, _("PC unavailable, cannot determine args.\n")); | |
1994 | return; | |
1995 | } | |
2c58c0a9 PA |
1996 | |
1997 | func = get_frame_function (frame); | |
1998 | if (func == NULL) | |
1999 | { | |
2000 | fprintf_filtered (stream, _("No symbol table info available.\n")); | |
2001 | return; | |
2002 | } | |
2003 | ||
2004 | cb_data.frame = frame; | |
2005 | cb_data.num_tabs = 0; | |
2006 | cb_data.stream = gdb_stdout; | |
2007 | cb_data.values_printed = 0; | |
2008 | ||
2009 | iterate_over_block_arg_vars (SYMBOL_BLOCK_VALUE (func), | |
2010 | do_print_variable_and_value, &cb_data); | |
033a42c2 | 2011 | |
2c58c0a9 | 2012 | if (!cb_data.values_printed) |
033a42c2 | 2013 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
2014 | } |
2015 | ||
2016 | void | |
fba45db2 | 2017 | args_info (char *ignore, int from_tty) |
c906108c | 2018 | { |
033a42c2 | 2019 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 2020 | gdb_stdout); |
c906108c SS |
2021 | } |
2022 | ||
2023 | ||
2024 | static void | |
fba45db2 | 2025 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 2026 | { |
c5aa993b JM |
2027 | args_info (ignore, from_tty); |
2028 | locals_info (ignore, from_tty); | |
c906108c | 2029 | } |
c906108c | 2030 | \f |
c5aa993b | 2031 | |
033a42c2 MK |
2032 | /* Select frame FRAME. Also print the stack frame and show the source |
2033 | if this is the tui version. */ | |
bedfa57b | 2034 | static void |
033a42c2 | 2035 | select_and_print_frame (struct frame_info *frame) |
c906108c | 2036 | { |
033a42c2 MK |
2037 | select_frame (frame); |
2038 | if (frame) | |
2039 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 2040 | } |
c906108c | 2041 | \f |
c906108c | 2042 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
2043 | Can return zero under various legitimate circumstances. |
2044 | ||
2045 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
2046 | code address within the block returned. We use this to decide | |
2047 | which macros are in scope. */ | |
c906108c SS |
2048 | |
2049 | struct block * | |
ae767bfb | 2050 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c | 2051 | { |
d729566a | 2052 | if (!has_stack_frames ()) |
8ea051c5 PA |
2053 | return 0; |
2054 | ||
206415a3 | 2055 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
2056 | } |
2057 | ||
2058 | /* Find a frame a certain number of levels away from FRAME. | |
2059 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
2060 | Positive means go to earlier frames (up); negative, the reverse. | |
2061 | The int that contains the number of levels is counted toward | |
2062 | zero as the frames for those levels are found. | |
2063 | If the top or bottom frame is reached, that frame is returned, | |
2064 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
2065 | how much farther the original request asked to go. */ | |
2066 | ||
2067 | struct frame_info * | |
033a42c2 | 2068 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 2069 | { |
033a42c2 MK |
2070 | /* Going up is simple: just call get_prev_frame enough times or |
2071 | until the initial frame is reached. */ | |
c906108c SS |
2072 | while (*level_offset_ptr > 0) |
2073 | { | |
033a42c2 | 2074 | struct frame_info *prev = get_prev_frame (frame); |
433759f7 | 2075 | |
033a42c2 | 2076 | if (!prev) |
c906108c SS |
2077 | break; |
2078 | (*level_offset_ptr)--; | |
2079 | frame = prev; | |
2080 | } | |
033a42c2 | 2081 | |
c906108c | 2082 | /* Going down is just as simple. */ |
033a42c2 | 2083 | while (*level_offset_ptr < 0) |
c906108c | 2084 | { |
033a42c2 | 2085 | struct frame_info *next = get_next_frame (frame); |
433759f7 | 2086 | |
033a42c2 MK |
2087 | if (!next) |
2088 | break; | |
2089 | (*level_offset_ptr)++; | |
2090 | frame = next; | |
c906108c | 2091 | } |
033a42c2 | 2092 | |
c906108c SS |
2093 | return frame; |
2094 | } | |
2095 | ||
033a42c2 MK |
2096 | /* The "select_frame" command. With no argument this is a NOP. |
2097 | Select the frame at level LEVEL_EXP if it is a valid level. | |
2098 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
2099 | ||
2100 | See parse_frame_specification for more info on proper frame | |
2101 | expressions. */ | |
c906108c | 2102 | |
8b93c638 | 2103 | void |
fba45db2 | 2104 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 2105 | { |
1c8831c5 | 2106 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
2107 | } |
2108 | ||
033a42c2 MK |
2109 | /* The "frame" command. With no argument, print the selected frame |
2110 | briefly. With an argument, behave like select_frame and then print | |
2111 | the selected frame. */ | |
c906108c | 2112 | |
033a42c2 | 2113 | static void |
fba45db2 | 2114 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
2115 | { |
2116 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 2117 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
2118 | } |
2119 | ||
033a42c2 | 2120 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 2121 | |
7a292a7a | 2122 | static void |
fba45db2 | 2123 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 2124 | { |
033a42c2 | 2125 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 2126 | } |
c906108c | 2127 | |
033a42c2 MK |
2128 | /* Select the frame up one or COUNT_EXP stack levels from the |
2129 | previously selected frame, and print it briefly. */ | |
c906108c | 2130 | |
c906108c | 2131 | static void |
fba45db2 | 2132 | up_silently_base (char *count_exp) |
c906108c | 2133 | { |
033a42c2 MK |
2134 | struct frame_info *frame; |
2135 | int count = 1; | |
2136 | ||
c906108c | 2137 | if (count_exp) |
bb518678 | 2138 | count = parse_and_eval_long (count_exp); |
c5aa993b | 2139 | |
033a42c2 MK |
2140 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2141 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 2142 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 2143 | select_frame (frame); |
c906108c SS |
2144 | } |
2145 | ||
2146 | static void | |
fba45db2 | 2147 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 2148 | { |
c5aa993b | 2149 | up_silently_base (count_exp); |
c906108c SS |
2150 | } |
2151 | ||
2152 | static void | |
fba45db2 | 2153 | up_command (char *count_exp, int from_tty) |
c906108c SS |
2154 | { |
2155 | up_silently_base (count_exp); | |
b04f3ab4 | 2156 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
2157 | } |
2158 | ||
033a42c2 MK |
2159 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
2160 | selected frame, and print it briefly. */ | |
c906108c | 2161 | |
c906108c | 2162 | static void |
fba45db2 | 2163 | down_silently_base (char *count_exp) |
c906108c | 2164 | { |
52f0bd74 | 2165 | struct frame_info *frame; |
033a42c2 | 2166 | int count = -1; |
f89b749f | 2167 | |
c906108c | 2168 | if (count_exp) |
bb518678 | 2169 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 2170 | |
033a42c2 MK |
2171 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2172 | if (count != 0 && count_exp == NULL) | |
c906108c | 2173 | { |
033a42c2 MK |
2174 | /* We only do this if COUNT_EXP is not specified. That way |
2175 | "down" means to really go down (and let me know if that is | |
2176 | impossible), but "down 9999" can be used to mean go all the | |
2177 | way down without getting an error. */ | |
c906108c | 2178 | |
033a42c2 | 2179 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
2180 | } |
2181 | ||
0f7d239c | 2182 | select_frame (frame); |
c906108c SS |
2183 | } |
2184 | ||
c906108c | 2185 | static void |
fba45db2 | 2186 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
2187 | { |
2188 | down_silently_base (count_exp); | |
c906108c SS |
2189 | } |
2190 | ||
2191 | static void | |
fba45db2 | 2192 | down_command (char *count_exp, int from_tty) |
c906108c SS |
2193 | { |
2194 | down_silently_base (count_exp); | |
b04f3ab4 | 2195 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
2196 | } |
2197 | \f | |
033a42c2 | 2198 | |
8b93c638 | 2199 | void |
fba45db2 | 2200 | return_command (char *retval_exp, int from_tty) |
c906108c | 2201 | { |
5ed92fa8 | 2202 | struct frame_info *thisframe; |
d80b854b | 2203 | struct gdbarch *gdbarch; |
c906108c | 2204 | struct symbol *thisfun; |
3d6d86c6 | 2205 | struct value *return_value = NULL; |
fc70c2a0 | 2206 | const char *query_prefix = ""; |
c906108c | 2207 | |
5ed92fa8 UW |
2208 | thisframe = get_selected_frame ("No selected frame."); |
2209 | thisfun = get_frame_function (thisframe); | |
d80b854b | 2210 | gdbarch = get_frame_arch (thisframe); |
c906108c | 2211 | |
edb3359d DJ |
2212 | if (get_frame_type (get_current_frame ()) == INLINE_FRAME) |
2213 | error (_("Can not force return from an inlined function.")); | |
2214 | ||
fc70c2a0 AC |
2215 | /* Compute the return value. If the computation triggers an error, |
2216 | let it bail. If the return type can't be handled, set | |
2217 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
2218 | message. */ | |
c906108c SS |
2219 | if (retval_exp) |
2220 | { | |
61ff14c6 JK |
2221 | struct expression *retval_expr = parse_expression (retval_exp); |
2222 | struct cleanup *old_chain = make_cleanup (xfree, retval_expr); | |
c906108c SS |
2223 | struct type *return_type = NULL; |
2224 | ||
fc70c2a0 AC |
2225 | /* Compute the return value. Should the computation fail, this |
2226 | call throws an error. */ | |
61ff14c6 | 2227 | return_value = evaluate_expression (retval_expr); |
c906108c | 2228 | |
fc70c2a0 AC |
2229 | /* Cast return value to the return type of the function. Should |
2230 | the cast fail, this call throws an error. */ | |
c906108c SS |
2231 | if (thisfun != NULL) |
2232 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
2233 | if (return_type == NULL) | |
61ff14c6 JK |
2234 | { |
2235 | if (retval_expr->elts[0].opcode != UNOP_CAST) | |
2236 | error (_("Return value type not available for selected " | |
2237 | "stack frame.\n" | |
2238 | "Please use an explicit cast of the value to return.")); | |
2239 | return_type = value_type (return_value); | |
2240 | } | |
2241 | do_cleanups (old_chain); | |
3e9a183c | 2242 | CHECK_TYPEDEF (return_type); |
c906108c SS |
2243 | return_value = value_cast (return_type, return_value); |
2244 | ||
fc70c2a0 AC |
2245 | /* Make sure the value is fully evaluated. It may live in the |
2246 | stack frame we're about to pop. */ | |
d69fe07e | 2247 | if (value_lazy (return_value)) |
c906108c | 2248 | value_fetch_lazy (return_value); |
c906108c | 2249 | |
667e784f AC |
2250 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
2251 | /* If the return-type is "void", don't try to find the | |
2252 | return-value's location. However, do still evaluate the | |
2253 | return expression so that, even when the expression result | |
2254 | is discarded, side effects such as "return i++" still | |
033a42c2 | 2255 | occur. */ |
667e784f | 2256 | return_value = NULL; |
42e2132c | 2257 | else if (thisfun != NULL |
d80b854b UW |
2258 | && using_struct_return (gdbarch, |
2259 | SYMBOL_TYPE (thisfun), return_type)) | |
fc70c2a0 | 2260 | { |
3e43a32a MS |
2261 | query_prefix = "The location at which to store the " |
2262 | "function's return value is unknown.\n" | |
2263 | "If you continue, the return value " | |
2264 | "that you specified will be ignored.\n"; | |
667e784f | 2265 | return_value = NULL; |
fc70c2a0 | 2266 | } |
c906108c SS |
2267 | } |
2268 | ||
fc70c2a0 AC |
2269 | /* Does an interactive user really want to do this? Include |
2270 | information, such as how well GDB can handle the return value, in | |
2271 | the query message. */ | |
2272 | if (from_tty) | |
2273 | { | |
2274 | int confirmed; | |
433759f7 | 2275 | |
fc70c2a0 | 2276 | if (thisfun == NULL) |
e2e0b3e5 | 2277 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
2278 | query_prefix); |
2279 | else | |
e2e0b3e5 | 2280 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
2281 | SYMBOL_PRINT_NAME (thisfun)); |
2282 | if (!confirmed) | |
8a3fe4f8 | 2283 | error (_("Not confirmed")); |
fc70c2a0 | 2284 | } |
c906108c | 2285 | |
a45ae3ed UW |
2286 | /* Discard the selected frame and all frames inner-to it. */ |
2287 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 2288 | |
a1f5b845 | 2289 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
2290 | if (return_value != NULL) |
2291 | { | |
df407dfe | 2292 | struct type *return_type = value_type (return_value); |
7500260a | 2293 | struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ()); |
42e2132c JK |
2294 | struct type *func_type = thisfun == NULL ? NULL : SYMBOL_TYPE (thisfun); |
2295 | ||
2296 | gdb_assert (gdbarch_return_value (gdbarch, func_type, return_type, NULL, | |
2297 | NULL, NULL) | |
750eb019 | 2298 | == RETURN_VALUE_REGISTER_CONVENTION); |
42e2132c | 2299 | gdbarch_return_value (gdbarch, func_type, return_type, |
594f7785 | 2300 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 2301 | value_contents (return_value) /*write*/); |
fc70c2a0 | 2302 | } |
1a2aab69 | 2303 | |
fc70c2a0 AC |
2304 | /* If we are at the end of a call dummy now, pop the dummy frame |
2305 | too. */ | |
e8bcf01f AC |
2306 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
2307 | frame_pop (get_current_frame ()); | |
1a2aab69 | 2308 | |
c906108c | 2309 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
2310 | if (from_tty) |
2311 | frame_command ("0", 1); | |
2312 | else | |
2313 | select_frame_command ("0", 0); | |
2314 | } | |
2315 | ||
033a42c2 | 2316 | /* Sets the scope to input function name, provided that the function |
c378eb4e | 2317 | is within the current stack frame. */ |
c906108c SS |
2318 | |
2319 | struct function_bounds | |
2320 | { | |
2321 | CORE_ADDR low, high; | |
2322 | }; | |
2323 | ||
2324 | static void | |
fba45db2 | 2325 | func_command (char *arg, int from_tty) |
c906108c | 2326 | { |
033a42c2 | 2327 | struct frame_info *frame; |
c906108c SS |
2328 | int found = 0; |
2329 | struct symtabs_and_lines sals; | |
2330 | int i; | |
2331 | int level = 1; | |
033a42c2 | 2332 | struct function_bounds *func_bounds = NULL; |
c906108c | 2333 | |
033a42c2 | 2334 | if (arg != NULL) |
c906108c SS |
2335 | return; |
2336 | ||
033a42c2 | 2337 | frame = parse_frame_specification ("0"); |
c906108c SS |
2338 | sals = decode_line_spec (arg, 1); |
2339 | func_bounds = (struct function_bounds *) xmalloc ( | |
2340 | sizeof (struct function_bounds) * sals.nelts); | |
2341 | for (i = 0; (i < sals.nelts && !found); i++) | |
2342 | { | |
033a42c2 MK |
2343 | if (sals.sals[i].pc == 0 |
2344 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
2345 | &func_bounds[i].low, | |
2346 | &func_bounds[i].high) == 0) | |
c906108c | 2347 | { |
033a42c2 | 2348 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
2349 | } |
2350 | } | |
2351 | ||
2352 | do | |
2353 | { | |
2354 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
2355 | found = (get_frame_pc (frame) >= func_bounds[i].low |
2356 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
2357 | if (!found) |
2358 | { | |
2359 | level = 1; | |
033a42c2 | 2360 | frame = find_relative_frame (frame, &level); |
c906108c SS |
2361 | } |
2362 | } | |
2363 | while (!found && level == 0); | |
2364 | ||
2365 | if (func_bounds) | |
b8c9b27d | 2366 | xfree (func_bounds); |
c906108c SS |
2367 | |
2368 | if (!found) | |
a3f17187 | 2369 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
206415a3 | 2370 | else if (frame != get_selected_frame (NULL)) |
033a42c2 | 2371 | select_and_print_frame (frame); |
c906108c SS |
2372 | } |
2373 | ||
2374 | /* Gets the language of the current frame. */ | |
2375 | ||
2376 | enum language | |
fba45db2 | 2377 | get_frame_language (void) |
c906108c | 2378 | { |
206415a3 | 2379 | struct frame_info *frame = deprecated_safe_get_selected_frame (); |
c5aa993b | 2380 | |
033a42c2 | 2381 | if (frame) |
c906108c | 2382 | { |
e3eebbd7 PA |
2383 | volatile struct gdb_exception ex; |
2384 | CORE_ADDR pc = 0; | |
2385 | struct symtab *s; | |
2386 | ||
7ae4c3a5 | 2387 | /* We determine the current frame language by looking up its |
033a42c2 MK |
2388 | associated symtab. To retrieve this symtab, we use the frame |
2389 | PC. However we cannot use the frame PC as is, because it | |
2390 | usually points to the instruction following the "call", which | |
2391 | is sometimes the first instruction of another function. So | |
2392 | we rely on get_frame_address_in_block(), it provides us with | |
2393 | a PC that is guaranteed to be inside the frame's code | |
2394 | block. */ | |
033a42c2 | 2395 | |
e3eebbd7 PA |
2396 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
2397 | { | |
2398 | pc = get_frame_address_in_block (frame); | |
2399 | } | |
2400 | if (ex.reason < 0) | |
2401 | { | |
2402 | if (ex.error != NOT_AVAILABLE_ERROR) | |
2403 | throw_exception (ex); | |
2404 | } | |
2405 | else | |
2406 | { | |
2407 | s = find_pc_symtab (pc); | |
2408 | if (s != NULL) | |
2409 | return s->language; | |
2410 | } | |
c906108c | 2411 | } |
c906108c | 2412 | |
033a42c2 | 2413 | return language_unknown; |
c906108c SS |
2414 | } |
2415 | \f | |
033a42c2 MK |
2416 | |
2417 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
2418 | void _initialize_stack (void); | |
2419 | ||
c906108c | 2420 | void |
fba45db2 | 2421 | _initialize_stack (void) |
c906108c | 2422 | { |
1bedd215 AC |
2423 | add_com ("return", class_stack, return_command, _("\ |
2424 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
2425 | Control remains in the debugger, but when you continue\n\ |
2426 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
2427 | If an argument is given, it is an expression for the value to return.")); |
2428 | ||
2429 | add_com ("up", class_stack, up_command, _("\ | |
2430 | Select and print stack frame that called this one.\n\ | |
2431 | An argument says how many frames up to go.")); | |
2432 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
2433 | Same as the `up' command, but does not print anything.\n\ | |
2434 | This is useful in command scripts.")); | |
2435 | ||
2436 | add_com ("down", class_stack, down_command, _("\ | |
2437 | Select and print stack frame called by this one.\n\ | |
2438 | An argument says how many frames down to go.")); | |
c906108c SS |
2439 | add_com_alias ("do", "down", class_stack, 1); |
2440 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
2441 | add_com ("down-silently", class_support, down_silently_command, _("\ |
2442 | Same as the `down' command, but does not print anything.\n\ | |
2443 | This is useful in command scripts.")); | |
c906108c | 2444 | |
1bedd215 | 2445 | add_com ("frame", class_stack, frame_command, _("\ |
3e43a32a MS |
2446 | Select and print a stack frame.\nWith no argument, \ |
2447 | print the selected stack frame. (See also \"info frame\").\n\ | |
c906108c SS |
2448 | An argument specifies the frame to select.\n\ |
2449 | It can be a stack frame number or the address of the frame.\n\ | |
2450 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 2451 | a command file or a user-defined command.")); |
c906108c SS |
2452 | |
2453 | add_com_alias ("f", "frame", class_stack, 1); | |
2454 | ||
2455 | if (xdb_commands) | |
2456 | { | |
c5aa993b | 2457 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 2458 | _("Print the current stack frame.\n")); |
c906108c SS |
2459 | add_com_alias ("V", "frame", class_stack, 1); |
2460 | } | |
1bedd215 AC |
2461 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
2462 | Select a stack frame without printing anything.\n\ | |
c906108c | 2463 | An argument specifies the frame to select.\n\ |
1bedd215 | 2464 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 2465 | |
1bedd215 AC |
2466 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2467 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
3e43a32a MS |
2468 | With a negative argument, print outermost -COUNT frames.\nUse of the \ |
2469 | 'full' qualifier also prints the values of the local variables.\n")); | |
c906108c SS |
2470 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2471 | if (xdb_commands) | |
2472 | { | |
2473 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 | 2474 | add_com ("T", class_stack, backtrace_full_command, _("\ |
cce7e648 | 2475 | Print backtrace of all stack frames, or innermost COUNT frames\n\ |
c906108c SS |
2476 | and the values of the local variables.\n\ |
2477 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2478 | Usage: T <count>\n")); |
c906108c SS |
2479 | } |
2480 | ||
2481 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2482 | add_info ("stack", backtrace_command, | |
1bedd215 | 2483 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2484 | add_info_alias ("s", "stack", 1); |
2485 | add_info ("frame", frame_info, | |
1bedd215 | 2486 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2487 | add_info_alias ("f", "frame", 1); |
2488 | add_info ("locals", locals_info, | |
1bedd215 | 2489 | _("Local variables of current stack frame.")); |
c906108c | 2490 | add_info ("args", args_info, |
1bedd215 | 2491 | _("Argument variables of current stack frame.")); |
c906108c | 2492 | if (xdb_commands) |
c5aa993b | 2493 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2494 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2495 | |
2496 | if (dbx_commands) | |
1bedd215 AC |
2497 | add_com ("func", class_stack, func_command, _("\ |
2498 | Select the stack frame that contains <func>.\n\ | |
2499 | Usage: func <name>\n")); | |
c906108c SS |
2500 | |
2501 | add_info ("catch", catch_info, | |
1bedd215 | 2502 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c | 2503 | |
88408340 JB |
2504 | add_setshow_enum_cmd ("frame-arguments", class_stack, |
2505 | print_frame_arguments_choices, &print_frame_arguments, | |
2506 | _("Set printing of non-scalar frame arguments"), | |
2507 | _("Show printing of non-scalar frame arguments"), | |
2508 | NULL, NULL, NULL, &setprintlist, &showprintlist); | |
2509 | ||
30c33a9f HZ |
2510 | add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack, |
2511 | &disassemble_next_line, _("\ | |
3e43a32a MS |
2512 | Set whether to disassemble next source line or insn when execution stops."), |
2513 | _("\ | |
2514 | Show whether to disassemble next source line or insn when execution stops."), | |
2515 | _("\ | |
80a0ea0f EZ |
2516 | If ON, GDB will display disassembly of the next source line, in addition\n\ |
2517 | to displaying the source line itself. If the next source line cannot\n\ | |
2518 | be displayed (e.g., source is unavailable or there's no line info), GDB\n\ | |
2519 | will display disassembly of next instruction instead of showing the\n\ | |
2520 | source line.\n\ | |
2521 | If AUTO, display disassembly of next instruction only if the source line\n\ | |
2522 | cannot be displayed.\n\ | |
2523 | If OFF (which is the default), never display the disassembly of the next\n\ | |
2524 | source line."), | |
30c33a9f HZ |
2525 | NULL, |
2526 | show_disassemble_next_line, | |
2527 | &setlist, &showlist); | |
a362e3d3 | 2528 | disassemble_next_line = AUTO_BOOLEAN_FALSE; |
e18b2753 JK |
2529 | |
2530 | add_setshow_enum_cmd ("entry-values", class_stack, | |
2531 | print_entry_values_choices, &print_entry_values, | |
2532 | _("Set printing of function arguments at function " | |
2533 | "entry"), | |
2534 | _("Show printing of function arguments at function " | |
2535 | "entry"), | |
2536 | _("\ | |
2537 | GDB can sometimes determine the values of function arguments at entry,\n\ | |
2538 | in addition to their current values. This option tells GDB whether\n\ | |
2539 | to print the current value, the value at entry (marked as val@entry),\n\ | |
2540 | or both. Note that one or both of these values may be <optimized out>."), | |
2541 | NULL, NULL, &setprintlist, &showprintlist); | |
c906108c | 2542 | } |