Commit | Line | Data |
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c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
42a4f53d | 3 | Copyright (C) 1986-2019 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 19 | |
c906108c | 20 | #include "defs.h" |
c906108c SS |
21 | #include "value.h" |
22 | #include "symtab.h" | |
23 | #include "gdbtypes.h" | |
24 | #include "expression.h" | |
25 | #include "language.h" | |
26 | #include "frame.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "gdbcore.h" | |
29 | #include "target.h" | |
0378c332 | 30 | #include "source.h" |
c906108c SS |
31 | #include "breakpoint.h" |
32 | #include "demangle.h" | |
33 | #include "inferior.h" | |
34 | #include "annotate.h" | |
8b93c638 | 35 | #include "ui-out.h" |
fe898f56 | 36 | #include "block.h" |
b9362cc7 | 37 | #include "stack.h" |
de4f826b | 38 | #include "dictionary.h" |
898c62f5 | 39 | #include "reggroups.h" |
fc70c2a0 | 40 | #include "regcache.h" |
a77053c2 | 41 | #include "solib.h" |
033a42c2 | 42 | #include "valprint.h" |
8ea051c5 | 43 | #include "gdbthread.h" |
3567439c | 44 | #include "cp-support.h" |
30c33a9f | 45 | #include "disasm.h" |
edb3359d | 46 | #include "inline-frame.h" |
f8eba3c6 | 47 | #include "linespec.h" |
529480d0 | 48 | #include "cli/cli-utils.h" |
77e371c0 | 49 | #include "objfiles.h" |
c906108c | 50 | |
ccefe4c4 | 51 | #include "symfile.h" |
6dddc817 | 52 | #include "extension.h" |
76727919 | 53 | #include "observable.h" |
0b868b60 | 54 | #include "common/def-vector.h" |
ccefe4c4 | 55 | |
2421fe6f | 56 | /* The possible choices of "set print frame-arguments", and the value |
88408340 JB |
57 | of this setting. */ |
58 | ||
40478521 | 59 | static const char *const print_frame_arguments_choices[] = |
88408340 | 60 | {"all", "scalars", "none", NULL}; |
476f7b68 | 61 | static const char *print_frame_arguments = "scalars"; |
88408340 | 62 | |
e7045703 DE |
63 | /* If non-zero, don't invoke pretty-printers for frame arguments. */ |
64 | static int print_raw_frame_arguments; | |
65 | ||
e18b2753 JK |
66 | /* The possible choices of "set print entry-values", and the value |
67 | of this setting. */ | |
68 | ||
69 | const char print_entry_values_no[] = "no"; | |
70 | const char print_entry_values_only[] = "only"; | |
71 | const char print_entry_values_preferred[] = "preferred"; | |
72 | const char print_entry_values_if_needed[] = "if-needed"; | |
73 | const char print_entry_values_both[] = "both"; | |
74 | const char print_entry_values_compact[] = "compact"; | |
75 | const char print_entry_values_default[] = "default"; | |
40478521 | 76 | static const char *const print_entry_values_choices[] = |
e18b2753 JK |
77 | { |
78 | print_entry_values_no, | |
79 | print_entry_values_only, | |
80 | print_entry_values_preferred, | |
81 | print_entry_values_if_needed, | |
82 | print_entry_values_both, | |
83 | print_entry_values_compact, | |
84 | print_entry_values_default, | |
85 | NULL | |
86 | }; | |
87 | const char *print_entry_values = print_entry_values_default; | |
88 | ||
c378eb4e | 89 | /* Prototypes for local functions. */ |
c906108c | 90 | |
12615cba PW |
91 | static void print_frame_local_vars (struct frame_info *frame, |
92 | bool quiet, | |
93 | const char *regexp, const char *t_regexp, | |
94 | int num_tabs, struct ui_file *stream); | |
c906108c | 95 | |
033a42c2 MK |
96 | static void print_frame (struct frame_info *frame, int print_level, |
97 | enum print_what print_what, int print_args, | |
c5394b80 JM |
98 | struct symtab_and_line sal); |
99 | ||
1bfeeb0f JL |
100 | static void set_last_displayed_sal (int valid, |
101 | struct program_space *pspace, | |
102 | CORE_ADDR addr, | |
103 | struct symtab *symtab, | |
104 | int line); | |
105 | ||
f67ffa6a AB |
106 | static struct frame_info *find_frame_for_function (const char *); |
107 | static struct frame_info *find_frame_for_address (CORE_ADDR); | |
108 | ||
c906108c SS |
109 | /* Zero means do things normally; we are interacting directly with the |
110 | user. One means print the full filename and linenumber when a | |
111 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
112 | parse. Two means print similar annotations, but in many more | |
113 | cases and in a slightly different syntax. */ | |
114 | ||
115 | int annotation_level = 0; | |
1bfeeb0f JL |
116 | |
117 | /* These variables hold the last symtab and line we displayed to the user. | |
118 | * This is where we insert a breakpoint or a skiplist entry by default. */ | |
119 | static int last_displayed_sal_valid = 0; | |
120 | static struct program_space *last_displayed_pspace = 0; | |
121 | static CORE_ADDR last_displayed_addr = 0; | |
122 | static struct symtab *last_displayed_symtab = 0; | |
123 | static int last_displayed_line = 0; | |
c906108c | 124 | \f |
c5aa993b | 125 | |
edb3359d DJ |
126 | /* Return 1 if we should display the address in addition to the location, |
127 | because we are in the middle of a statement. */ | |
128 | ||
129 | static int | |
130 | frame_show_address (struct frame_info *frame, | |
131 | struct symtab_and_line sal) | |
132 | { | |
133 | /* If there is a line number, but no PC, then there is no location | |
134 | information associated with this sal. The only way that should | |
135 | happen is for the call sites of inlined functions (SAL comes from | |
136 | find_frame_sal). Otherwise, we would have some PC range if the | |
137 | SAL came from a line table. */ | |
138 | if (sal.line != 0 && sal.pc == 0 && sal.end == 0) | |
139 | { | |
140 | if (get_next_frame (frame) == NULL) | |
00431a78 | 141 | gdb_assert (inline_skipped_frames (inferior_thread ()) > 0); |
edb3359d DJ |
142 | else |
143 | gdb_assert (get_frame_type (get_next_frame (frame)) == INLINE_FRAME); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | return get_frame_pc (frame) != sal.pc; | |
148 | } | |
149 | ||
4034d0ff AT |
150 | /* See frame.h. */ |
151 | ||
152 | void | |
153 | print_stack_frame_to_uiout (struct ui_out *uiout, struct frame_info *frame, | |
154 | int print_level, enum print_what print_what, | |
155 | int set_current_sal) | |
156 | { | |
67ad9399 | 157 | scoped_restore save_uiout = make_scoped_restore (¤t_uiout, uiout); |
4034d0ff AT |
158 | |
159 | print_stack_frame (frame, print_level, print_what, set_current_sal); | |
4034d0ff AT |
160 | } |
161 | ||
f9acce4a | 162 | /* Show or print a stack frame FRAME briefly. The output is formatted |
d762c46a AC |
163 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
164 | relative level, function name, argument list, and file name and | |
165 | line number. If the frame's PC is not at the beginning of the | |
166 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
167 | |
168 | void | |
033a42c2 | 169 | print_stack_frame (struct frame_info *frame, int print_level, |
08d72866 PA |
170 | enum print_what print_what, |
171 | int set_current_sal) | |
c906108c | 172 | { |
c906108c | 173 | |
aaf9e9fd | 174 | /* For mi, alway print location and address. */ |
112e8700 | 175 | if (current_uiout->is_mi_like_p ()) |
311b5970 | 176 | print_what = LOC_AND_ADDRESS; |
c906108c | 177 | |
492d29ea | 178 | TRY |
311b5970 | 179 | { |
08d72866 PA |
180 | print_frame_info (frame, print_level, print_what, 1 /* print_args */, |
181 | set_current_sal); | |
182 | if (set_current_sal) | |
5166082f | 183 | set_current_sal_from_frame (frame); |
311b5970 | 184 | } |
492d29ea PA |
185 | CATCH (e, RETURN_MASK_ERROR) |
186 | { | |
187 | } | |
188 | END_CATCH | |
311b5970 | 189 | } |
c906108c | 190 | |
033a42c2 MK |
191 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
192 | the offset of the first nameless argument, and NUM is the number of | |
193 | nameless arguments to print. FIRST is nonzero if this is the first | |
194 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
195 | |
196 | static void | |
033a42c2 | 197 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
198 | int first, struct ui_file *stream) |
199 | { | |
e17a4113 UW |
200 | struct gdbarch *gdbarch = get_frame_arch (frame); |
201 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
8d3b0994 AC |
202 | int i; |
203 | CORE_ADDR argsaddr; | |
204 | long arg_value; | |
205 | ||
206 | for (i = 0; i < num; i++) | |
207 | { | |
208 | QUIT; | |
033a42c2 | 209 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
210 | if (!argsaddr) |
211 | return; | |
e17a4113 UW |
212 | arg_value = read_memory_integer (argsaddr + start, |
213 | sizeof (int), byte_order); | |
8d3b0994 AC |
214 | if (!first) |
215 | fprintf_filtered (stream, ", "); | |
216 | fprintf_filtered (stream, "%ld", arg_value); | |
217 | first = 0; | |
218 | start += sizeof (int); | |
219 | } | |
220 | } | |
221 | ||
93d86cef JK |
222 | /* Print single argument of inferior function. ARG must be already |
223 | read in. | |
224 | ||
225 | Errors are printed as if they would be the parameter value. Use zeroed ARG | |
226 | iff it should not be printed accoring to user settings. */ | |
227 | ||
228 | static void | |
229 | print_frame_arg (const struct frame_arg *arg) | |
230 | { | |
231 | struct ui_out *uiout = current_uiout; | |
492d29ea | 232 | const char *error_message = NULL; |
93d86cef | 233 | |
d7e74731 | 234 | string_file stb; |
93d86cef JK |
235 | |
236 | gdb_assert (!arg->val || !arg->error); | |
e18b2753 JK |
237 | gdb_assert (arg->entry_kind == print_entry_values_no |
238 | || arg->entry_kind == print_entry_values_only | |
112e8700 | 239 | || (!uiout->is_mi_like_p () |
e18b2753 | 240 | && arg->entry_kind == print_entry_values_compact)); |
93d86cef | 241 | |
46b9c129 TT |
242 | annotate_arg_emitter arg_emitter; |
243 | ui_out_emit_tuple tuple_emitter (uiout, NULL); | |
d7e74731 | 244 | fprintf_symbol_filtered (&stb, SYMBOL_PRINT_NAME (arg->sym), |
93d86cef | 245 | SYMBOL_LANGUAGE (arg->sym), DMGL_PARAMS | DMGL_ANSI); |
e18b2753 JK |
246 | if (arg->entry_kind == print_entry_values_compact) |
247 | { | |
248 | /* It is OK to provide invalid MI-like stream as with | |
249 | PRINT_ENTRY_VALUE_COMPACT we never use MI. */ | |
d7e74731 | 250 | stb.puts ("="); |
e18b2753 | 251 | |
d7e74731 | 252 | fprintf_symbol_filtered (&stb, SYMBOL_PRINT_NAME (arg->sym), |
e18b2753 JK |
253 | SYMBOL_LANGUAGE (arg->sym), |
254 | DMGL_PARAMS | DMGL_ANSI); | |
255 | } | |
256 | if (arg->entry_kind == print_entry_values_only | |
257 | || arg->entry_kind == print_entry_values_compact) | |
d7e74731 | 258 | stb.puts ("@entry"); |
80ae2043 | 259 | uiout->field_stream ("name", stb, ui_out_style_kind::VARIABLE); |
93d86cef | 260 | annotate_arg_name_end (); |
112e8700 | 261 | uiout->text ("="); |
93d86cef JK |
262 | |
263 | if (!arg->val && !arg->error) | |
112e8700 | 264 | uiout->text ("..."); |
93d86cef JK |
265 | else |
266 | { | |
267 | if (arg->error) | |
492d29ea | 268 | error_message = arg->error; |
93d86cef JK |
269 | else |
270 | { | |
492d29ea | 271 | TRY |
93d86cef JK |
272 | { |
273 | const struct language_defn *language; | |
274 | struct value_print_options opts; | |
275 | ||
276 | /* Avoid value_print because it will deref ref parameters. We | |
277 | just want to print their addresses. Print ??? for args whose | |
278 | address we do not know. We pass 2 as "recurse" to val_print | |
279 | because our standard indentation here is 4 spaces, and | |
280 | val_print indents 2 for each recurse. */ | |
281 | ||
282 | annotate_arg_value (value_type (arg->val)); | |
283 | ||
284 | /* Use the appropriate language to display our symbol, unless the | |
285 | user forced the language to a specific language. */ | |
286 | if (language_mode == language_mode_auto) | |
287 | language = language_def (SYMBOL_LANGUAGE (arg->sym)); | |
288 | else | |
289 | language = current_language; | |
290 | ||
2a998fc0 | 291 | get_no_prettyformat_print_options (&opts); |
3343315b | 292 | opts.deref_ref = 1; |
e7045703 | 293 | opts.raw = print_raw_frame_arguments; |
93d86cef JK |
294 | |
295 | /* True in "summary" mode, false otherwise. */ | |
296 | opts.summary = !strcmp (print_frame_arguments, "scalars"); | |
297 | ||
d7e74731 | 298 | common_val_print (arg->val, &stb, 2, &opts, language); |
93d86cef | 299 | } |
492d29ea PA |
300 | CATCH (except, RETURN_MASK_ERROR) |
301 | { | |
302 | error_message = except.message; | |
303 | } | |
304 | END_CATCH | |
93d86cef | 305 | } |
492d29ea | 306 | if (error_message != NULL) |
d7e74731 | 307 | stb.printf (_("<error reading variable: %s>"), error_message); |
93d86cef JK |
308 | } |
309 | ||
112e8700 | 310 | uiout->field_stream ("value", stb); |
93d86cef JK |
311 | } |
312 | ||
82a0a75f YQ |
313 | /* Read in inferior function local SYM at FRAME into ARGP. Caller is |
314 | responsible for xfree of ARGP->ERROR. This function never throws an | |
315 | exception. */ | |
316 | ||
317 | void | |
318 | read_frame_local (struct symbol *sym, struct frame_info *frame, | |
319 | struct frame_arg *argp) | |
320 | { | |
492d29ea PA |
321 | argp->sym = sym; |
322 | argp->val = NULL; | |
323 | argp->error = NULL; | |
324 | ||
325 | TRY | |
82a0a75f | 326 | { |
63e43d3a | 327 | argp->val = read_var_value (sym, NULL, frame); |
82a0a75f | 328 | } |
492d29ea PA |
329 | CATCH (except, RETURN_MASK_ERROR) |
330 | { | |
331 | argp->error = xstrdup (except.message); | |
332 | } | |
333 | END_CATCH | |
82a0a75f YQ |
334 | } |
335 | ||
93d86cef JK |
336 | /* Read in inferior function parameter SYM at FRAME into ARGP. Caller is |
337 | responsible for xfree of ARGP->ERROR. This function never throws an | |
338 | exception. */ | |
339 | ||
340 | void | |
341 | read_frame_arg (struct symbol *sym, struct frame_info *frame, | |
e18b2753 | 342 | struct frame_arg *argp, struct frame_arg *entryargp) |
93d86cef | 343 | { |
e18b2753 JK |
344 | struct value *val = NULL, *entryval = NULL; |
345 | char *val_error = NULL, *entryval_error = NULL; | |
346 | int val_equal = 0; | |
93d86cef | 347 | |
e18b2753 JK |
348 | if (print_entry_values != print_entry_values_only |
349 | && print_entry_values != print_entry_values_preferred) | |
350 | { | |
492d29ea | 351 | TRY |
e18b2753 | 352 | { |
63e43d3a | 353 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 354 | } |
492d29ea | 355 | CATCH (except, RETURN_MASK_ERROR) |
e18b2753 | 356 | { |
224c3ddb | 357 | val_error = (char *) alloca (strlen (except.message) + 1); |
e18b2753 JK |
358 | strcpy (val_error, except.message); |
359 | } | |
492d29ea | 360 | END_CATCH |
e18b2753 JK |
361 | } |
362 | ||
24d6c2a0 TT |
363 | if (SYMBOL_COMPUTED_OPS (sym) != NULL |
364 | && SYMBOL_COMPUTED_OPS (sym)->read_variable_at_entry != NULL | |
e18b2753 JK |
365 | && print_entry_values != print_entry_values_no |
366 | && (print_entry_values != print_entry_values_if_needed | |
367 | || !val || value_optimized_out (val))) | |
368 | { | |
492d29ea | 369 | TRY |
e18b2753 JK |
370 | { |
371 | const struct symbol_computed_ops *ops; | |
372 | ||
373 | ops = SYMBOL_COMPUTED_OPS (sym); | |
374 | entryval = ops->read_variable_at_entry (sym, frame); | |
375 | } | |
492d29ea | 376 | CATCH (except, RETURN_MASK_ERROR) |
e18b2753 | 377 | { |
492d29ea PA |
378 | if (except.error != NO_ENTRY_VALUE_ERROR) |
379 | { | |
380 | entryval_error = (char *) alloca (strlen (except.message) + 1); | |
381 | strcpy (entryval_error, except.message); | |
382 | } | |
e18b2753 | 383 | } |
492d29ea | 384 | END_CATCH |
e18b2753 | 385 | |
492d29ea PA |
386 | if (entryval != NULL && value_optimized_out (entryval)) |
387 | entryval = NULL; | |
e18b2753 JK |
388 | |
389 | if (print_entry_values == print_entry_values_compact | |
390 | || print_entry_values == print_entry_values_default) | |
391 | { | |
392 | /* For MI do not try to use print_entry_values_compact for ARGP. */ | |
393 | ||
112e8700 | 394 | if (val && entryval && !current_uiout->is_mi_like_p ()) |
e18b2753 | 395 | { |
744a8059 | 396 | struct type *type = value_type (val); |
e18b2753 | 397 | |
9a0dc9e3 PA |
398 | if (value_lazy (val)) |
399 | value_fetch_lazy (val); | |
400 | if (value_lazy (entryval)) | |
401 | value_fetch_lazy (entryval); | |
402 | ||
403 | if (value_contents_eq (val, 0, entryval, 0, TYPE_LENGTH (type))) | |
e18b2753 | 404 | { |
509f0fd9 JK |
405 | /* Initialize it just to avoid a GCC false warning. */ |
406 | struct value *val_deref = NULL, *entryval_deref; | |
a471c594 | 407 | |
216f72a1 | 408 | /* DW_AT_call_value does match with the current |
a471c594 | 409 | value. If it is a reference still try to verify if |
216f72a1 | 410 | dereferenced DW_AT_call_data_value does not differ. */ |
a471c594 | 411 | |
492d29ea | 412 | TRY |
a471c594 | 413 | { |
744a8059 | 414 | struct type *type_deref; |
a471c594 JK |
415 | |
416 | val_deref = coerce_ref (val); | |
417 | if (value_lazy (val_deref)) | |
418 | value_fetch_lazy (val_deref); | |
744a8059 | 419 | type_deref = value_type (val_deref); |
a471c594 JK |
420 | |
421 | entryval_deref = coerce_ref (entryval); | |
422 | if (value_lazy (entryval_deref)) | |
423 | value_fetch_lazy (entryval_deref); | |
424 | ||
425 | /* If the reference addresses match but dereferenced | |
426 | content does not match print them. */ | |
427 | if (val != val_deref | |
9a0dc9e3 PA |
428 | && value_contents_eq (val_deref, 0, |
429 | entryval_deref, 0, | |
430 | TYPE_LENGTH (type_deref))) | |
a471c594 JK |
431 | val_equal = 1; |
432 | } | |
492d29ea PA |
433 | CATCH (except, RETURN_MASK_ERROR) |
434 | { | |
435 | /* If the dereferenced content could not be | |
436 | fetched do not display anything. */ | |
437 | if (except.error == NO_ENTRY_VALUE_ERROR) | |
438 | val_equal = 1; | |
439 | else if (except.message != NULL) | |
440 | { | |
441 | entryval_error = (char *) alloca (strlen (except.message) + 1); | |
442 | strcpy (entryval_error, except.message); | |
443 | } | |
444 | } | |
445 | END_CATCH | |
a471c594 JK |
446 | |
447 | /* Value was not a reference; and its content matches. */ | |
448 | if (val == val_deref) | |
449 | val_equal = 1; | |
a471c594 JK |
450 | |
451 | if (val_equal) | |
452 | entryval = NULL; | |
e18b2753 JK |
453 | } |
454 | } | |
455 | ||
456 | /* Try to remove possibly duplicate error message for ENTRYARGP even | |
457 | in MI mode. */ | |
458 | ||
459 | if (val_error && entryval_error | |
460 | && strcmp (val_error, entryval_error) == 0) | |
461 | { | |
462 | entryval_error = NULL; | |
463 | ||
464 | /* Do not se VAL_EQUAL as the same error message may be shown for | |
465 | the entry value even if no entry values are present in the | |
466 | inferior. */ | |
467 | } | |
468 | } | |
469 | } | |
470 | ||
471 | if (entryval == NULL) | |
93d86cef | 472 | { |
e18b2753 JK |
473 | if (print_entry_values == print_entry_values_preferred) |
474 | { | |
492d29ea PA |
475 | gdb_assert (val == NULL); |
476 | ||
477 | TRY | |
e18b2753 | 478 | { |
63e43d3a | 479 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 480 | } |
492d29ea | 481 | CATCH (except, RETURN_MASK_ERROR) |
e18b2753 | 482 | { |
224c3ddb | 483 | val_error = (char *) alloca (strlen (except.message) + 1); |
e18b2753 JK |
484 | strcpy (val_error, except.message); |
485 | } | |
492d29ea | 486 | END_CATCH |
e18b2753 JK |
487 | } |
488 | if (print_entry_values == print_entry_values_only | |
489 | || print_entry_values == print_entry_values_both | |
490 | || (print_entry_values == print_entry_values_preferred | |
491 | && (!val || value_optimized_out (val)))) | |
1ed8d800 YQ |
492 | { |
493 | entryval = allocate_optimized_out_value (SYMBOL_TYPE (sym)); | |
494 | entryval_error = NULL; | |
495 | } | |
93d86cef | 496 | } |
e18b2753 JK |
497 | if ((print_entry_values == print_entry_values_compact |
498 | || print_entry_values == print_entry_values_if_needed | |
499 | || print_entry_values == print_entry_values_preferred) | |
500 | && (!val || value_optimized_out (val)) && entryval != NULL) | |
93d86cef | 501 | { |
e18b2753 JK |
502 | val = NULL; |
503 | val_error = NULL; | |
93d86cef JK |
504 | } |
505 | ||
506 | argp->sym = sym; | |
507 | argp->val = val; | |
508 | argp->error = val_error ? xstrdup (val_error) : NULL; | |
e18b2753 JK |
509 | if (!val && !val_error) |
510 | argp->entry_kind = print_entry_values_only; | |
511 | else if ((print_entry_values == print_entry_values_compact | |
512 | || print_entry_values == print_entry_values_default) && val_equal) | |
513 | { | |
514 | argp->entry_kind = print_entry_values_compact; | |
112e8700 | 515 | gdb_assert (!current_uiout->is_mi_like_p ()); |
e18b2753 JK |
516 | } |
517 | else | |
518 | argp->entry_kind = print_entry_values_no; | |
519 | ||
520 | entryargp->sym = sym; | |
521 | entryargp->val = entryval; | |
522 | entryargp->error = entryval_error ? xstrdup (entryval_error) : NULL; | |
523 | if (!entryval && !entryval_error) | |
524 | entryargp->entry_kind = print_entry_values_no; | |
525 | else | |
526 | entryargp->entry_kind = print_entry_values_only; | |
93d86cef JK |
527 | } |
528 | ||
033a42c2 MK |
529 | /* Print the arguments of frame FRAME on STREAM, given the function |
530 | FUNC running in that frame (as a symbol), where NUM is the number | |
531 | of arguments according to the stack frame (or -1 if the number of | |
532 | arguments is unknown). */ | |
8d3b0994 | 533 | |
e3168615 | 534 | /* Note that currently the "number of arguments according to the |
033a42c2 | 535 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 536 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
537 | |
538 | static void | |
033a42c2 MK |
539 | print_frame_args (struct symbol *func, struct frame_info *frame, |
540 | int num, struct ui_file *stream) | |
8d3b0994 | 541 | { |
79a45e25 | 542 | struct ui_out *uiout = current_uiout; |
8d3b0994 | 543 | int first = 1; |
8d3b0994 | 544 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
545 | at the highest offset, or -1 if we haven't come to a stack |
546 | argument yet. */ | |
8d3b0994 | 547 | long highest_offset = -1; |
8d3b0994 AC |
548 | /* Number of ints of arguments that we have printed so far. */ |
549 | int args_printed = 0; | |
a6bac58e TT |
550 | /* True if we should print arguments, false otherwise. */ |
551 | int print_args = strcmp (print_frame_arguments, "none"); | |
8d3b0994 | 552 | |
8d3b0994 AC |
553 | if (func) |
554 | { | |
3977b71f | 555 | const struct block *b = SYMBOL_BLOCK_VALUE (func); |
8157b174 | 556 | struct block_iterator iter; |
033a42c2 | 557 | struct symbol *sym; |
8d3b0994 | 558 | |
de4f826b | 559 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 | 560 | { |
e18b2753 | 561 | struct frame_arg arg, entryarg; |
93d86cef | 562 | |
8d3b0994 AC |
563 | QUIT; |
564 | ||
565 | /* Keep track of the highest stack argument offset seen, and | |
566 | skip over any kinds of symbols we don't care about. */ | |
567 | ||
2a2d4dc3 AS |
568 | if (!SYMBOL_IS_ARGUMENT (sym)) |
569 | continue; | |
570 | ||
8d3b0994 AC |
571 | switch (SYMBOL_CLASS (sym)) |
572 | { | |
573 | case LOC_ARG: | |
574 | case LOC_REF_ARG: | |
575 | { | |
576 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 577 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
578 | |
579 | /* Compute address of next argument by adding the size of | |
580 | this argument and rounding to an int boundary. */ | |
581 | current_offset = | |
582 | ((current_offset + arg_size + sizeof (int) - 1) | |
583 | & ~(sizeof (int) - 1)); | |
584 | ||
033a42c2 MK |
585 | /* If this is the highest offset seen yet, set |
586 | highest_offset. */ | |
8d3b0994 AC |
587 | if (highest_offset == -1 |
588 | || (current_offset > highest_offset)) | |
589 | highest_offset = current_offset; | |
590 | ||
033a42c2 MK |
591 | /* Add the number of ints we're about to print to |
592 | args_printed. */ | |
8d3b0994 AC |
593 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
594 | } | |
595 | ||
033a42c2 MK |
596 | /* We care about types of symbols, but don't need to |
597 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 598 | case LOC_REGISTER: |
8d3b0994 | 599 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
600 | case LOC_COMPUTED: |
601 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 602 | default: |
2a2d4dc3 | 603 | break; |
8d3b0994 AC |
604 | } |
605 | ||
606 | /* We have to look up the symbol because arguments can have | |
607 | two entries (one a parameter, one a local) and the one we | |
608 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 609 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
610 | small structure and gcc2 when the argument type is float |
611 | and it is passed as a double and converted to float by | |
612 | the prologue (in the latter case the type of the LOC_ARG | |
613 | symbol is double and the type of the LOC_LOCAL symbol is | |
614 | float). */ | |
033a42c2 MK |
615 | /* But if the parameter name is null, don't try it. Null |
616 | parameter names occur on the RS/6000, for traceback | |
617 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 618 | |
3567439c | 619 | if (*SYMBOL_LINKAGE_NAME (sym)) |
8d3b0994 AC |
620 | { |
621 | struct symbol *nsym; | |
433759f7 | 622 | |
de63c46b PA |
623 | nsym = lookup_symbol_search_name (SYMBOL_SEARCH_NAME (sym), |
624 | b, VAR_DOMAIN).symbol; | |
55765a25 | 625 | gdb_assert (nsym != NULL); |
2a2d4dc3 AS |
626 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER |
627 | && !SYMBOL_IS_ARGUMENT (nsym)) | |
8d3b0994 | 628 | { |
033a42c2 MK |
629 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
630 | that it was passed on the stack and loaded into a | |
631 | register, or passed in a register and stored in a | |
632 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
633 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
634 | |
635 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
636 | |
637 | (1) Because find_saved_registers may be slow for | |
638 | remote debugging. | |
639 | ||
640 | (2) Because registers are often re-used and stack | |
641 | slots rarely (never?) are. Therefore using | |
642 | the stack slot is much less likely to print | |
643 | garbage. | |
8d3b0994 AC |
644 | |
645 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
646 | |
647 | (1) So that the backtrace prints the same value | |
648 | as "print foo". I see no compelling reason | |
649 | why this needs to be the case; having the | |
650 | backtrace print the value which was passed | |
651 | in, and "print foo" print the value as | |
652 | modified within the called function, makes | |
653 | perfect sense to me. | |
654 | ||
655 | Additional note: It might be nice if "info args" | |
656 | displayed both values. | |
657 | ||
658 | One more note: There is a case with SPARC | |
659 | structure passing where we need to use the | |
660 | LOC_REGISTER, but this is dealt with by creating | |
661 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
662 | |
663 | /* Leave sym (the LOC_ARG) alone. */ | |
664 | ; | |
665 | } | |
666 | else | |
667 | sym = nsym; | |
668 | } | |
669 | ||
670 | /* Print the current arg. */ | |
671 | if (!first) | |
112e8700 SM |
672 | uiout->text (", "); |
673 | uiout->wrap_hint (" "); | |
8d3b0994 | 674 | |
93d86cef JK |
675 | if (!print_args) |
676 | { | |
677 | memset (&arg, 0, sizeof (arg)); | |
678 | arg.sym = sym; | |
e18b2753 JK |
679 | arg.entry_kind = print_entry_values_no; |
680 | memset (&entryarg, 0, sizeof (entryarg)); | |
681 | entryarg.sym = sym; | |
682 | entryarg.entry_kind = print_entry_values_no; | |
93d86cef JK |
683 | } |
684 | else | |
e18b2753 | 685 | read_frame_arg (sym, frame, &arg, &entryarg); |
8d3b0994 | 686 | |
e18b2753 JK |
687 | if (arg.entry_kind != print_entry_values_only) |
688 | print_frame_arg (&arg); | |
689 | ||
690 | if (entryarg.entry_kind != print_entry_values_no) | |
691 | { | |
692 | if (arg.entry_kind != print_entry_values_only) | |
693 | { | |
112e8700 SM |
694 | uiout->text (", "); |
695 | uiout->wrap_hint (" "); | |
e18b2753 JK |
696 | } |
697 | ||
698 | print_frame_arg (&entryarg); | |
699 | } | |
8d3b0994 | 700 | |
93d86cef | 701 | xfree (arg.error); |
e18b2753 | 702 | xfree (entryarg.error); |
8d3b0994 AC |
703 | |
704 | first = 0; | |
705 | } | |
706 | } | |
707 | ||
708 | /* Don't print nameless args in situations where we don't know | |
709 | enough about the stack to find them. */ | |
710 | if (num != -1) | |
711 | { | |
712 | long start; | |
713 | ||
714 | if (highest_offset == -1) | |
7500260a | 715 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
716 | else |
717 | start = highest_offset; | |
718 | ||
033a42c2 | 719 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
720 | first, stream); |
721 | } | |
8d3b0994 AC |
722 | } |
723 | ||
033a42c2 MK |
724 | /* Set the current source and line to the location given by frame |
725 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
726 | line is in the center of the next 'list'. */ | |
c789492a | 727 | |
7abfe014 | 728 | void |
5166082f | 729 | set_current_sal_from_frame (struct frame_info *frame) |
c789492a | 730 | { |
51abb421 | 731 | symtab_and_line sal = find_frame_sal (frame); |
5166082f | 732 | if (sal.symtab != NULL) |
51abb421 | 733 | set_current_source_symtab_and_line (sal); |
c789492a FL |
734 | } |
735 | ||
30c33a9f HZ |
736 | /* If ON, GDB will display disassembly of the next source line when |
737 | execution of the program being debugged stops. | |
481df73e HZ |
738 | If AUTO (which is the default), or there's no line info to determine |
739 | the source line of the next instruction, display disassembly of next | |
740 | instruction instead. */ | |
30c33a9f HZ |
741 | |
742 | static enum auto_boolean disassemble_next_line; | |
743 | ||
744 | static void | |
745 | show_disassemble_next_line (struct ui_file *file, int from_tty, | |
746 | struct cmd_list_element *c, | |
747 | const char *value) | |
748 | { | |
3e43a32a MS |
749 | fprintf_filtered (file, |
750 | _("Debugger's willingness to use " | |
751 | "disassemble-next-line is %s.\n"), | |
30c33a9f HZ |
752 | value); |
753 | } | |
754 | ||
30c33a9f HZ |
755 | /* Use TRY_CATCH to catch the exception from the gdb_disassembly |
756 | because it will be broken by filter sometime. */ | |
757 | ||
758 | static void | |
13274fc3 UW |
759 | do_gdb_disassembly (struct gdbarch *gdbarch, |
760 | int how_many, CORE_ADDR low, CORE_ADDR high) | |
30c33a9f | 761 | { |
30c33a9f | 762 | |
492d29ea | 763 | TRY |
30c33a9f | 764 | { |
7a8eb317 | 765 | gdb_disassembly (gdbarch, current_uiout, |
79a45e25 PA |
766 | DISASSEMBLY_RAW_INSN, how_many, |
767 | low, high); | |
30c33a9f | 768 | } |
492d29ea | 769 | CATCH (exception, RETURN_MASK_ERROR) |
b1d288d3 JK |
770 | { |
771 | /* If an exception was thrown while doing the disassembly, print | |
772 | the error message, to give the user a clue of what happened. */ | |
773 | exception_print (gdb_stderr, exception); | |
774 | } | |
492d29ea | 775 | END_CATCH |
30c33a9f HZ |
776 | } |
777 | ||
033a42c2 | 778 | /* Print information about frame FRAME. The output is format according |
65aa373f | 779 | to PRINT_LEVEL and PRINT_WHAT and PRINT_ARGS. The meaning of |
033a42c2 MK |
780 | PRINT_WHAT is: |
781 | ||
782 | SRC_LINE: Print only source line. | |
783 | LOCATION: Print only location. | |
50c65c2d | 784 | SRC_AND_LOC: Print location and source line. |
033a42c2 MK |
785 | |
786 | Used in "where" output, and to emit breakpoint or step | |
787 | messages. */ | |
c906108c | 788 | |
7789c6f5 | 789 | void |
033a42c2 | 790 | print_frame_info (struct frame_info *frame, int print_level, |
08d72866 PA |
791 | enum print_what print_what, int print_args, |
792 | int set_current_sal) | |
c906108c | 793 | { |
5af949e3 | 794 | struct gdbarch *gdbarch = get_frame_arch (frame); |
c5394b80 JM |
795 | int source_print; |
796 | int location_print; | |
79a45e25 | 797 | struct ui_out *uiout = current_uiout; |
c906108c | 798 | |
033a42c2 | 799 | if (get_frame_type (frame) == DUMMY_FRAME |
36f15f55 UW |
800 | || get_frame_type (frame) == SIGTRAMP_FRAME |
801 | || get_frame_type (frame) == ARCH_FRAME) | |
c906108c | 802 | { |
2e783024 | 803 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); |
c906108c | 804 | |
033a42c2 | 805 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
5af949e3 | 806 | gdbarch, get_frame_pc (frame)); |
6a3fe0a4 | 807 | |
c906108c | 808 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 809 | to list for this frame. */ |
0faf0076 | 810 | if (print_level) |
52c6a6ac | 811 | { |
112e8700 SM |
812 | uiout->text ("#"); |
813 | uiout->field_fmt_int (2, ui_left, "level", | |
033a42c2 | 814 | frame_relative_level (frame)); |
52c6a6ac | 815 | } |
112e8700 | 816 | if (uiout->is_mi_like_p ()) |
52c6a6ac | 817 | { |
075559bc | 818 | annotate_frame_address (); |
112e8700 | 819 | uiout->field_core_addr ("addr", |
5af949e3 | 820 | gdbarch, get_frame_pc (frame)); |
075559bc | 821 | annotate_frame_address_end (); |
52c6a6ac | 822 | } |
6a3fe0a4 | 823 | |
033a42c2 | 824 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
825 | { |
826 | annotate_function_call (); | |
cbe56571 TT |
827 | uiout->field_string ("func", "<function called from gdb>", |
828 | ui_out_style_kind::FUNCTION); | |
075559bc | 829 | } |
033a42c2 | 830 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
831 | { |
832 | annotate_signal_handler_caller (); | |
cbe56571 TT |
833 | uiout->field_string ("func", "<signal handler called>", |
834 | ui_out_style_kind::FUNCTION); | |
075559bc | 835 | } |
36f15f55 UW |
836 | else if (get_frame_type (frame) == ARCH_FRAME) |
837 | { | |
cbe56571 TT |
838 | uiout->field_string ("func", "<cross-architecture call>", |
839 | ui_out_style_kind::FUNCTION); | |
36f15f55 | 840 | } |
112e8700 | 841 | uiout->text ("\n"); |
c906108c | 842 | annotate_frame_end (); |
075559bc | 843 | |
433e77fa HZ |
844 | /* If disassemble-next-line is set to auto or on output the next |
845 | instruction. */ | |
846 | if (disassemble_next_line == AUTO_BOOLEAN_AUTO | |
847 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
848 | do_gdb_disassembly (get_frame_arch (frame), 1, | |
849 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
850 | ||
c906108c SS |
851 | return; |
852 | } | |
853 | ||
033a42c2 MK |
854 | /* If FRAME is not the innermost frame, that normally means that |
855 | FRAME->pc points to *after* the call instruction, and we want to | |
856 | get the line containing the call, never the next line. But if | |
857 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
858 | next frame was not entered as the result of a call, and we want | |
859 | to get the line containing FRAME->pc. */ | |
51abb421 | 860 | symtab_and_line sal = find_frame_sal (frame); |
c906108c | 861 | |
0faf0076 AC |
862 | location_print = (print_what == LOCATION |
863 | || print_what == LOC_AND_ADDRESS | |
864 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
865 | |
866 | if (location_print || !sal.symtab) | |
033a42c2 | 867 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 868 | |
0faf0076 | 869 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 870 | |
30c33a9f HZ |
871 | /* If disassemble-next-line is set to auto or on and doesn't have |
872 | the line debug messages for $pc, output the next instruction. */ | |
873 | if ((disassemble_next_line == AUTO_BOOLEAN_AUTO | |
874 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
875 | && source_print && !sal.symtab) | |
13274fc3 UW |
876 | do_gdb_disassembly (get_frame_arch (frame), 1, |
877 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
30c33a9f | 878 | |
c5394b80 JM |
879 | if (source_print && sal.symtab) |
880 | { | |
881 | int done = 0; | |
0faf0076 | 882 | int mid_statement = ((print_what == SRC_LINE) |
edb3359d | 883 | && frame_show_address (frame, sal)); |
c5394b80 JM |
884 | |
885 | if (annotation_level) | |
886 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 887 | get_frame_pc (frame)); |
c5394b80 JM |
888 | if (!done) |
889 | { | |
9a4105ab | 890 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
891 | deprecated_print_frame_info_listing_hook (sal.symtab, |
892 | sal.line, | |
893 | sal.line + 1, 0); | |
ba4bbdcb | 894 | else |
c5394b80 | 895 | { |
79a45b7d | 896 | struct value_print_options opts; |
433759f7 | 897 | |
79a45b7d | 898 | get_user_print_options (&opts); |
ba4bbdcb | 899 | /* We used to do this earlier, but that is clearly |
c378eb4e | 900 | wrong. This function is used by many different |
ba4bbdcb KS |
901 | parts of gdb, including normal_stop in infrun.c, |
902 | which uses this to print out the current PC | |
903 | when we stepi/nexti into the middle of a source | |
c378eb4e MS |
904 | line. Only the command line really wants this |
905 | behavior. Other UIs probably would like the | |
cbd3c883 | 906 | ability to decide for themselves if it is desired. */ |
79a45b7d | 907 | if (opts.addressprint && mid_statement) |
ba4bbdcb | 908 | { |
112e8700 | 909 | uiout->field_core_addr ("addr", |
5af949e3 | 910 | gdbarch, get_frame_pc (frame)); |
112e8700 | 911 | uiout->text ("\t"); |
ba4bbdcb KS |
912 | } |
913 | ||
914 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 915 | } |
c5394b80 | 916 | } |
30c33a9f HZ |
917 | |
918 | /* If disassemble-next-line is set to on and there is line debug | |
919 | messages, output assembly codes for next line. */ | |
920 | if (disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
2b28d209 | 921 | do_gdb_disassembly (get_frame_arch (frame), -1, sal.pc, sal.end); |
c5394b80 JM |
922 | } |
923 | ||
08d72866 | 924 | if (set_current_sal) |
e3eebbd7 PA |
925 | { |
926 | CORE_ADDR pc; | |
927 | ||
928 | if (get_frame_pc_if_available (frame, &pc)) | |
1bfeeb0f | 929 | set_last_displayed_sal (1, sal.pspace, pc, sal.symtab, sal.line); |
e3eebbd7 | 930 | else |
1bfeeb0f | 931 | set_last_displayed_sal (0, 0, 0, 0, 0); |
e3eebbd7 | 932 | } |
c5394b80 JM |
933 | |
934 | annotate_frame_end (); | |
935 | ||
936 | gdb_flush (gdb_stdout); | |
937 | } | |
938 | ||
1bfeeb0f JL |
939 | /* Remember the last symtab and line we displayed, which we use e.g. |
940 | * as the place to put a breakpoint when the `break' command is | |
941 | * invoked with no arguments. */ | |
942 | ||
943 | static void | |
944 | set_last_displayed_sal (int valid, struct program_space *pspace, | |
945 | CORE_ADDR addr, struct symtab *symtab, | |
946 | int line) | |
947 | { | |
948 | last_displayed_sal_valid = valid; | |
949 | last_displayed_pspace = pspace; | |
950 | last_displayed_addr = addr; | |
951 | last_displayed_symtab = symtab; | |
952 | last_displayed_line = line; | |
4cb6da1c AR |
953 | if (valid && pspace == NULL) |
954 | { | |
4cb6da1c | 955 | clear_last_displayed_sal (); |
e36930bb PA |
956 | internal_error (__FILE__, __LINE__, |
957 | _("Trying to set NULL pspace.")); | |
4cb6da1c | 958 | } |
1bfeeb0f JL |
959 | } |
960 | ||
961 | /* Forget the last sal we displayed. */ | |
962 | ||
963 | void | |
964 | clear_last_displayed_sal (void) | |
965 | { | |
966 | last_displayed_sal_valid = 0; | |
967 | last_displayed_pspace = 0; | |
968 | last_displayed_addr = 0; | |
969 | last_displayed_symtab = 0; | |
970 | last_displayed_line = 0; | |
971 | } | |
972 | ||
973 | /* Is our record of the last sal we displayed valid? If not, | |
974 | * the get_last_displayed_* functions will return NULL or 0, as | |
975 | * appropriate. */ | |
976 | ||
977 | int | |
978 | last_displayed_sal_is_valid (void) | |
979 | { | |
980 | return last_displayed_sal_valid; | |
981 | } | |
982 | ||
983 | /* Get the pspace of the last sal we displayed, if it's valid. */ | |
984 | ||
985 | struct program_space * | |
986 | get_last_displayed_pspace (void) | |
987 | { | |
988 | if (last_displayed_sal_valid) | |
989 | return last_displayed_pspace; | |
990 | return 0; | |
991 | } | |
992 | ||
993 | /* Get the address of the last sal we displayed, if it's valid. */ | |
994 | ||
995 | CORE_ADDR | |
996 | get_last_displayed_addr (void) | |
997 | { | |
998 | if (last_displayed_sal_valid) | |
999 | return last_displayed_addr; | |
1000 | return 0; | |
1001 | } | |
1002 | ||
1003 | /* Get the symtab of the last sal we displayed, if it's valid. */ | |
1004 | ||
1005 | struct symtab* | |
1006 | get_last_displayed_symtab (void) | |
1007 | { | |
1008 | if (last_displayed_sal_valid) | |
1009 | return last_displayed_symtab; | |
1010 | return 0; | |
1011 | } | |
1012 | ||
1013 | /* Get the line of the last sal we displayed, if it's valid. */ | |
1014 | ||
1015 | int | |
1016 | get_last_displayed_line (void) | |
1017 | { | |
1018 | if (last_displayed_sal_valid) | |
1019 | return last_displayed_line; | |
1020 | return 0; | |
1021 | } | |
1022 | ||
1023 | /* Get the last sal we displayed, if it's valid. */ | |
1024 | ||
51abb421 PA |
1025 | symtab_and_line |
1026 | get_last_displayed_sal () | |
1bfeeb0f | 1027 | { |
51abb421 PA |
1028 | symtab_and_line sal; |
1029 | ||
1bfeeb0f JL |
1030 | if (last_displayed_sal_valid) |
1031 | { | |
51abb421 PA |
1032 | sal.pspace = last_displayed_pspace; |
1033 | sal.pc = last_displayed_addr; | |
1034 | sal.symtab = last_displayed_symtab; | |
1035 | sal.line = last_displayed_line; | |
1bfeeb0f | 1036 | } |
51abb421 PA |
1037 | |
1038 | return sal; | |
1bfeeb0f JL |
1039 | } |
1040 | ||
1041 | ||
c6dc63a1 TT |
1042 | /* Attempt to obtain the name, FUNLANG and optionally FUNCP of the function |
1043 | corresponding to FRAME. */ | |
e9e07ba6 | 1044 | |
c6dc63a1 TT |
1045 | gdb::unique_xmalloc_ptr<char> |
1046 | find_frame_funname (struct frame_info *frame, enum language *funlang, | |
1047 | struct symbol **funcp) | |
c5394b80 JM |
1048 | { |
1049 | struct symbol *func; | |
c6dc63a1 | 1050 | gdb::unique_xmalloc_ptr<char> funname; |
8b93c638 | 1051 | |
f8f6f20b | 1052 | *funlang = language_unknown; |
e9e07ba6 JK |
1053 | if (funcp) |
1054 | *funcp = NULL; | |
c5394b80 | 1055 | |
edb3359d | 1056 | func = get_frame_function (frame); |
c906108c SS |
1057 | if (func) |
1058 | { | |
1059 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
1060 | function (when we are in the first function in a file which |
1061 | is compiled without debugging symbols, the previous function | |
1062 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
1063 | that is supposed to tell us where the file with debugging |
1064 | symbols ends has been truncated by ar because it is longer | |
1065 | than 15 characters). This also occurs if the user uses asm() | |
1066 | to create a function but not stabs for it (in a file compiled | |
1067 | with -g). | |
c5aa993b JM |
1068 | |
1069 | So look in the minimal symbol tables as well, and if it comes | |
1070 | up with a larger address for the function use that instead. | |
033a42c2 MK |
1071 | I don't think this can ever cause any problems; there |
1072 | shouldn't be any minimal symbols in the middle of a function; | |
1073 | if this is ever changed many parts of GDB will need to be | |
1074 | changed (and we'll create a find_pc_minimal_function or some | |
1075 | such). */ | |
1076 | ||
7cbd4a93 | 1077 | struct bound_minimal_symbol msymbol; |
edb3359d DJ |
1078 | |
1079 | /* Don't attempt to do this for inlined functions, which do not | |
1080 | have a corresponding minimal symbol. */ | |
1081 | if (!block_inlined_p (SYMBOL_BLOCK_VALUE (func))) | |
1082 | msymbol | |
1083 | = lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
7cbd4a93 TT |
1084 | else |
1085 | memset (&msymbol, 0, sizeof (msymbol)); | |
c906108c | 1086 | |
7cbd4a93 | 1087 | if (msymbol.minsym != NULL |
77e371c0 | 1088 | && (BMSYMBOL_VALUE_ADDRESS (msymbol) |
2b1ffcfd | 1089 | > BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (func)))) |
c906108c | 1090 | { |
c906108c SS |
1091 | /* We also don't know anything about the function besides |
1092 | its address and name. */ | |
1093 | func = 0; | |
c6dc63a1 | 1094 | funname.reset (xstrdup (MSYMBOL_PRINT_NAME (msymbol.minsym))); |
efd66ac6 | 1095 | *funlang = MSYMBOL_LANGUAGE (msymbol.minsym); |
c906108c SS |
1096 | } |
1097 | else | |
1098 | { | |
d10153cf TT |
1099 | const char *print_name = SYMBOL_PRINT_NAME (func); |
1100 | ||
f8f6f20b | 1101 | *funlang = SYMBOL_LANGUAGE (func); |
e9e07ba6 JK |
1102 | if (funcp) |
1103 | *funcp = func; | |
f8f6f20b | 1104 | if (*funlang == language_cplus) |
c5aa993b | 1105 | { |
033a42c2 MK |
1106 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
1107 | to display the demangled name that we already have | |
1108 | stored in the symbol table, but we stored a version | |
1109 | with DMGL_PARAMS turned on, and here we don't want to | |
3567439c | 1110 | display parameters. So remove the parameters. */ |
109483d9 | 1111 | funname = cp_remove_params (print_name); |
c5aa993b | 1112 | } |
d10153cf | 1113 | |
c6dc63a1 TT |
1114 | /* If we didn't hit the C++ case above, set *funname |
1115 | here. */ | |
1116 | if (funname == NULL) | |
1117 | funname.reset (xstrdup (print_name)); | |
c906108c SS |
1118 | } |
1119 | } | |
1120 | else | |
1121 | { | |
7cbd4a93 | 1122 | struct bound_minimal_symbol msymbol; |
e3eebbd7 | 1123 | CORE_ADDR pc; |
033a42c2 | 1124 | |
e3eebbd7 | 1125 | if (!get_frame_address_in_block_if_available (frame, &pc)) |
c6dc63a1 | 1126 | return funname; |
e3eebbd7 PA |
1127 | |
1128 | msymbol = lookup_minimal_symbol_by_pc (pc); | |
7cbd4a93 | 1129 | if (msymbol.minsym != NULL) |
c906108c | 1130 | { |
c6dc63a1 | 1131 | funname.reset (xstrdup (MSYMBOL_PRINT_NAME (msymbol.minsym))); |
efd66ac6 | 1132 | *funlang = MSYMBOL_LANGUAGE (msymbol.minsym); |
c906108c SS |
1133 | } |
1134 | } | |
c6dc63a1 TT |
1135 | |
1136 | return funname; | |
f8f6f20b TJB |
1137 | } |
1138 | ||
1139 | static void | |
1140 | print_frame (struct frame_info *frame, int print_level, | |
1141 | enum print_what print_what, int print_args, | |
1142 | struct symtab_and_line sal) | |
1143 | { | |
5af949e3 | 1144 | struct gdbarch *gdbarch = get_frame_arch (frame); |
79a45e25 | 1145 | struct ui_out *uiout = current_uiout; |
f8f6f20b | 1146 | enum language funlang = language_unknown; |
f8f6f20b | 1147 | struct value_print_options opts; |
e9e07ba6 | 1148 | struct symbol *func; |
e3eebbd7 PA |
1149 | CORE_ADDR pc = 0; |
1150 | int pc_p; | |
1151 | ||
1152 | pc_p = get_frame_pc_if_available (frame, &pc); | |
f8f6f20b | 1153 | |
c6dc63a1 TT |
1154 | gdb::unique_xmalloc_ptr<char> funname |
1155 | = find_frame_funname (frame, &funlang, &func); | |
c906108c | 1156 | |
033a42c2 | 1157 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
e3eebbd7 | 1158 | gdbarch, pc); |
c5394b80 | 1159 | |
76f9c9cf TT |
1160 | { |
1161 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); | |
c5394b80 | 1162 | |
76f9c9cf | 1163 | if (print_level) |
c5394b80 | 1164 | { |
76f9c9cf TT |
1165 | uiout->text ("#"); |
1166 | uiout->field_fmt_int (2, ui_left, "level", | |
1167 | frame_relative_level (frame)); | |
c5394b80 | 1168 | } |
76f9c9cf TT |
1169 | get_user_print_options (&opts); |
1170 | if (opts.addressprint) | |
1171 | if (!sal.symtab | |
1172 | || frame_show_address (frame, sal) | |
1173 | || print_what == LOC_AND_ADDRESS) | |
311b5970 | 1174 | { |
76f9c9cf TT |
1175 | annotate_frame_address (); |
1176 | if (pc_p) | |
1177 | uiout->field_core_addr ("addr", gdbarch, pc); | |
1178 | else | |
35fb8261 TT |
1179 | uiout->field_string ("addr", "<unavailable>", |
1180 | ui_out_style_kind::ADDRESS); | |
76f9c9cf TT |
1181 | annotate_frame_address_end (); |
1182 | uiout->text (" in "); | |
311b5970 | 1183 | } |
76f9c9cf TT |
1184 | annotate_frame_function_name (); |
1185 | ||
1186 | string_file stb; | |
c6dc63a1 | 1187 | fprintf_symbol_filtered (&stb, funname ? funname.get () : "??", |
76f9c9cf | 1188 | funlang, DMGL_ANSI); |
cbe56571 | 1189 | uiout->field_stream ("func", stb, ui_out_style_kind::FUNCTION); |
76f9c9cf TT |
1190 | uiout->wrap_hint (" "); |
1191 | annotate_frame_args (); | |
cbe56571 | 1192 | |
76f9c9cf TT |
1193 | uiout->text (" ("); |
1194 | if (print_args) | |
10f489e5 | 1195 | { |
76f9c9cf TT |
1196 | int numargs; |
1197 | ||
1198 | if (gdbarch_frame_num_args_p (gdbarch)) | |
10f489e5 | 1199 | { |
76f9c9cf TT |
1200 | numargs = gdbarch_frame_num_args (gdbarch, frame); |
1201 | gdb_assert (numargs >= 0); | |
10f489e5 | 1202 | } |
76f9c9cf TT |
1203 | else |
1204 | numargs = -1; | |
1205 | ||
1206 | { | |
1207 | ui_out_emit_list list_emitter (uiout, "args"); | |
1208 | TRY | |
1209 | { | |
1210 | print_frame_args (func, frame, numargs, gdb_stdout); | |
1211 | } | |
1212 | CATCH (e, RETURN_MASK_ERROR) | |
1213 | { | |
1214 | } | |
1215 | END_CATCH | |
10f489e5 | 1216 | |
76f9c9cf TT |
1217 | /* FIXME: ARGS must be a list. If one argument is a string it |
1218 | will have " that will not be properly escaped. */ | |
1219 | } | |
1220 | QUIT; | |
10f489e5 | 1221 | } |
76f9c9cf TT |
1222 | uiout->text (")"); |
1223 | if (sal.symtab) | |
1224 | { | |
1225 | const char *filename_display; | |
1b56eb55 | 1226 | |
76f9c9cf TT |
1227 | filename_display = symtab_to_filename_for_display (sal.symtab); |
1228 | annotate_frame_source_begin (); | |
1229 | uiout->wrap_hint (" "); | |
1230 | uiout->text (" at "); | |
1231 | annotate_frame_source_file (); | |
cbe56571 | 1232 | uiout->field_string ("file", filename_display, ui_out_style_kind::FILE); |
76f9c9cf TT |
1233 | if (uiout->is_mi_like_p ()) |
1234 | { | |
1235 | const char *fullname = symtab_to_fullname (sal.symtab); | |
433759f7 | 1236 | |
76f9c9cf TT |
1237 | uiout->field_string ("fullname", fullname); |
1238 | } | |
1239 | annotate_frame_source_file_end (); | |
1240 | uiout->text (":"); | |
1241 | annotate_frame_source_line (); | |
1242 | uiout->field_int ("line", sal.line); | |
1243 | annotate_frame_source_end (); | |
1244 | } | |
c906108c | 1245 | |
76f9c9cf TT |
1246 | if (pc_p && (funname == NULL || sal.symtab == NULL)) |
1247 | { | |
1248 | char *lib = solib_name_from_address (get_frame_program_space (frame), | |
1249 | get_frame_pc (frame)); | |
4d1eb6b4 | 1250 | |
76f9c9cf TT |
1251 | if (lib) |
1252 | { | |
1253 | annotate_frame_where (); | |
1254 | uiout->wrap_hint (" "); | |
1255 | uiout->text (" from "); | |
1256 | uiout->field_string ("from", lib); | |
1257 | } | |
1258 | } | |
6d52907e JV |
1259 | if (uiout->is_mi_like_p ()) |
1260 | uiout->field_string ("arch", | |
1261 | (gdbarch_bfd_arch_info (gdbarch))->printable_name); | |
76f9c9cf | 1262 | } |
e514a9d6 | 1263 | |
112e8700 | 1264 | uiout->text ("\n"); |
c906108c SS |
1265 | } |
1266 | \f | |
c5aa993b | 1267 | |
f67ffa6a AB |
1268 | /* Completion function for "frame function", "info frame function", and |
1269 | "select-frame function" commands. */ | |
c906108c | 1270 | |
f67ffa6a AB |
1271 | void |
1272 | frame_selection_by_function_completer (struct cmd_list_element *ignore, | |
1273 | completion_tracker &tracker, | |
1274 | const char *text, const char *word) | |
c906108c | 1275 | { |
f67ffa6a AB |
1276 | /* This is used to complete function names within a stack. It would be |
1277 | nice if we only offered functions that were actually in the stack. | |
1278 | However, this would mean unwinding the stack to completion, which | |
1279 | could take too long, or on a corrupted stack, possibly not end. | |
1280 | Instead, we offer all symbol names as a safer choice. */ | |
1281 | collect_symbol_completion_matches (tracker, | |
1282 | complete_symbol_mode::EXPRESSION, | |
1283 | symbol_name_match_type::EXPRESSION, | |
1284 | text, word); | |
1c8831c5 AC |
1285 | } |
1286 | ||
f67ffa6a AB |
1287 | /* Core of all the "info frame" sub-commands. Print information about a |
1288 | frame FI. If SELECTED_FRAME_P is true then the user didn't provide a | |
1289 | frame specification, they just entered 'info frame'. If the user did | |
1290 | provide a frame specification (for example 'info frame 0', 'info frame | |
1291 | level 1') then SELECTED_FRAME_P will be false. */ | |
c906108c SS |
1292 | |
1293 | static void | |
f67ffa6a | 1294 | info_frame_command_core (struct frame_info *fi, bool selected_frame_p) |
c906108c | 1295 | { |
c906108c SS |
1296 | struct symbol *func; |
1297 | struct symtab *s; | |
1298 | struct frame_info *calling_frame_info; | |
167e4384 | 1299 | int numregs; |
0d5cff50 | 1300 | const char *funname = 0; |
c906108c | 1301 | enum language funlang = language_unknown; |
82de1e5b | 1302 | const char *pc_regname; |
7500260a | 1303 | struct gdbarch *gdbarch; |
008f8f2e PA |
1304 | CORE_ADDR frame_pc; |
1305 | int frame_pc_p; | |
e5e6f788 YQ |
1306 | /* Initialize it to avoid "may be used uninitialized" warning. */ |
1307 | CORE_ADDR caller_pc = 0; | |
492d29ea | 1308 | int caller_pc_p = 0; |
c906108c | 1309 | |
12368003 | 1310 | gdbarch = get_frame_arch (fi); |
c906108c | 1311 | |
82de1e5b AC |
1312 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
1313 | is not a good name. */ | |
12368003 | 1314 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1315 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
1316 | easily not match that of the internal value returned by |
1317 | get_frame_pc(). */ | |
12368003 | 1318 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 1319 | else |
3e8c568d | 1320 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
1321 | architectures will often have a hardware register called "pc", |
1322 | and that register's value, again, can easily not match | |
1323 | get_frame_pc(). */ | |
1324 | pc_regname = "pc"; | |
1325 | ||
008f8f2e | 1326 | frame_pc_p = get_frame_pc_if_available (fi, &frame_pc); |
c906108c | 1327 | func = get_frame_function (fi); |
51abb421 | 1328 | symtab_and_line sal = find_frame_sal (fi); |
008f8f2e | 1329 | s = sal.symtab; |
2003f3d8 | 1330 | gdb::unique_xmalloc_ptr<char> func_only; |
c906108c SS |
1331 | if (func) |
1332 | { | |
3567439c | 1333 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b JM |
1334 | funlang = SYMBOL_LANGUAGE (func); |
1335 | if (funlang == language_cplus) | |
1336 | { | |
3567439c DJ |
1337 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
1338 | to display the demangled name that we already have | |
1339 | stored in the symbol table, but we stored a version | |
1340 | with DMGL_PARAMS turned on, and here we don't want to | |
1341 | display parameters. So remove the parameters. */ | |
109483d9 | 1342 | func_only = cp_remove_params (funname); |
433759f7 | 1343 | |
3567439c | 1344 | if (func_only) |
2003f3d8 | 1345 | funname = func_only.get (); |
c5aa993b | 1346 | } |
c906108c | 1347 | } |
008f8f2e | 1348 | else if (frame_pc_p) |
c906108c | 1349 | { |
7cbd4a93 | 1350 | struct bound_minimal_symbol msymbol; |
033a42c2 | 1351 | |
008f8f2e | 1352 | msymbol = lookup_minimal_symbol_by_pc (frame_pc); |
7cbd4a93 | 1353 | if (msymbol.minsym != NULL) |
c906108c | 1354 | { |
efd66ac6 TT |
1355 | funname = MSYMBOL_PRINT_NAME (msymbol.minsym); |
1356 | funlang = MSYMBOL_LANGUAGE (msymbol.minsym); | |
c906108c SS |
1357 | } |
1358 | } | |
1359 | calling_frame_info = get_prev_frame (fi); | |
1360 | ||
1c8831c5 | 1361 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 1362 | { |
a3f17187 | 1363 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 1364 | frame_relative_level (fi)); |
c906108c SS |
1365 | } |
1366 | else | |
1367 | { | |
a3f17187 | 1368 | printf_filtered (_("Stack frame at ")); |
c906108c | 1369 | } |
5af949e3 | 1370 | fputs_filtered (paddress (gdbarch, get_frame_base (fi)), gdb_stdout); |
9c833c82 | 1371 | printf_filtered (":\n"); |
82de1e5b | 1372 | printf_filtered (" %s = ", pc_regname); |
008f8f2e PA |
1373 | if (frame_pc_p) |
1374 | fputs_filtered (paddress (gdbarch, get_frame_pc (fi)), gdb_stdout); | |
1375 | else | |
1376 | fputs_filtered ("<unavailable>", gdb_stdout); | |
c906108c SS |
1377 | |
1378 | wrap_here (" "); | |
1379 | if (funname) | |
1380 | { | |
1381 | printf_filtered (" in "); | |
1382 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
1383 | DMGL_ANSI | DMGL_PARAMS); | |
1384 | } | |
1385 | wrap_here (" "); | |
1386 | if (sal.symtab) | |
05cba821 JK |
1387 | printf_filtered (" (%s:%d)", symtab_to_filename_for_display (sal.symtab), |
1388 | sal.line); | |
c906108c SS |
1389 | puts_filtered ("; "); |
1390 | wrap_here (" "); | |
782d47df PA |
1391 | printf_filtered ("saved %s = ", pc_regname); |
1392 | ||
a038fa3e | 1393 | if (!frame_id_p (frame_unwind_caller_id (fi))) |
c620c3e4 | 1394 | val_print_not_saved (gdb_stdout); |
a038fa3e | 1395 | else |
782d47df | 1396 | { |
a038fa3e | 1397 | TRY |
782d47df | 1398 | { |
a038fa3e MM |
1399 | caller_pc = frame_unwind_caller_pc (fi); |
1400 | caller_pc_p = 1; | |
782d47df | 1401 | } |
a038fa3e MM |
1402 | CATCH (ex, RETURN_MASK_ERROR) |
1403 | { | |
1404 | switch (ex.error) | |
1405 | { | |
1406 | case NOT_AVAILABLE_ERROR: | |
1407 | val_print_unavailable (gdb_stdout); | |
1408 | break; | |
1409 | case OPTIMIZED_OUT_ERROR: | |
1410 | val_print_not_saved (gdb_stdout); | |
1411 | break; | |
1412 | default: | |
1413 | fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message); | |
1414 | break; | |
1415 | } | |
1416 | } | |
1417 | END_CATCH | |
782d47df | 1418 | } |
492d29ea PA |
1419 | |
1420 | if (caller_pc_p) | |
782d47df | 1421 | fputs_filtered (paddress (gdbarch, caller_pc), gdb_stdout); |
c906108c SS |
1422 | printf_filtered ("\n"); |
1423 | ||
55feb689 DJ |
1424 | if (calling_frame_info == NULL) |
1425 | { | |
1426 | enum unwind_stop_reason reason; | |
1427 | ||
1428 | reason = get_frame_unwind_stop_reason (fi); | |
1429 | if (reason != UNWIND_NO_REASON) | |
1430 | printf_filtered (_(" Outermost frame: %s\n"), | |
53e8a631 | 1431 | frame_stop_reason_string (fi)); |
55feb689 | 1432 | } |
111c6489 JK |
1433 | else if (get_frame_type (fi) == TAILCALL_FRAME) |
1434 | puts_filtered (" tail call frame"); | |
edb3359d DJ |
1435 | else if (get_frame_type (fi) == INLINE_FRAME) |
1436 | printf_filtered (" inlined into frame %d", | |
1437 | frame_relative_level (get_prev_frame (fi))); | |
1438 | else | |
c906108c SS |
1439 | { |
1440 | printf_filtered (" called by frame at "); | |
5af949e3 | 1441 | fputs_filtered (paddress (gdbarch, get_frame_base (calling_frame_info)), |
ed49a04f | 1442 | gdb_stdout); |
c906108c | 1443 | } |
75e3c1f9 | 1444 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
1445 | puts_filtered (","); |
1446 | wrap_here (" "); | |
75e3c1f9 | 1447 | if (get_next_frame (fi)) |
c906108c SS |
1448 | { |
1449 | printf_filtered (" caller of frame at "); | |
5af949e3 | 1450 | fputs_filtered (paddress (gdbarch, get_frame_base (get_next_frame (fi))), |
ed49a04f | 1451 | gdb_stdout); |
c906108c | 1452 | } |
75e3c1f9 | 1453 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1454 | puts_filtered ("\n"); |
55feb689 | 1455 | |
c906108c | 1456 | if (s) |
1058bca7 AC |
1457 | printf_filtered (" source language %s.\n", |
1458 | language_str (s->language)); | |
c906108c | 1459 | |
c906108c SS |
1460 | { |
1461 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1462 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1463 | /* Number of args for this frame, or -1 if unknown. */ |
1464 | int numargs; | |
1465 | ||
1466 | if (arg_list == 0) | |
1467 | printf_filtered (" Arglist at unknown address.\n"); | |
1468 | else | |
1469 | { | |
1470 | printf_filtered (" Arglist at "); | |
5af949e3 | 1471 | fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout); |
c906108c SS |
1472 | printf_filtered (","); |
1473 | ||
7500260a | 1474 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1475 | { |
1476 | numargs = -1; | |
1477 | puts_filtered (" args: "); | |
1478 | } | |
c906108c | 1479 | else |
983a287a | 1480 | { |
7500260a | 1481 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1482 | gdb_assert (numargs >= 0); |
1483 | if (numargs == 0) | |
1484 | puts_filtered (" no args."); | |
1485 | else if (numargs == 1) | |
1486 | puts_filtered (" 1 arg: "); | |
1487 | else | |
1488 | printf_filtered (" %d args: ", numargs); | |
1489 | } | |
c906108c SS |
1490 | print_frame_args (func, fi, numargs, gdb_stdout); |
1491 | puts_filtered ("\n"); | |
1492 | } | |
1493 | } | |
1494 | { | |
1495 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1496 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1497 | |
1498 | if (arg_list == 0) | |
1499 | printf_filtered (" Locals at unknown address,"); | |
1500 | else | |
1501 | { | |
1502 | printf_filtered (" Locals at "); | |
5af949e3 | 1503 | fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout); |
c906108c SS |
1504 | printf_filtered (","); |
1505 | } | |
1506 | } | |
1507 | ||
4f460812 AC |
1508 | /* Print as much information as possible on the location of all the |
1509 | registers. */ | |
1510 | { | |
4f460812 AC |
1511 | int count; |
1512 | int i; | |
1513 | int need_nl = 1; | |
b0e4b369 | 1514 | int sp_regnum = gdbarch_sp_regnum (gdbarch); |
4f460812 AC |
1515 | |
1516 | /* The sp is special; what's displayed isn't the save address, but | |
1517 | the value of the previous frame's sp. This is a legacy thing, | |
1518 | at one stage the frame cached the previous frame's SP instead | |
1519 | of its address, hence it was easiest to just display the cached | |
1520 | value. */ | |
b0e4b369 | 1521 | if (sp_regnum >= 0) |
4f460812 | 1522 | { |
b0e4b369 AH |
1523 | struct value *value = frame_unwind_register_value (fi, sp_regnum); |
1524 | gdb_assert (value != NULL); | |
1525 | ||
1526 | if (!value_optimized_out (value) && value_entirely_available (value)) | |
4f460812 | 1527 | { |
b0e4b369 AH |
1528 | if (VALUE_LVAL (value) == not_lval) |
1529 | { | |
1530 | CORE_ADDR sp; | |
1531 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1532 | int sp_size = register_size (gdbarch, sp_regnum); | |
1533 | ||
1534 | sp = extract_unsigned_integer (value_contents_all (value), | |
1535 | sp_size, byte_order); | |
1536 | ||
1537 | printf_filtered (" Previous frame's sp is "); | |
1538 | fputs_filtered (paddress (gdbarch, sp), gdb_stdout); | |
1539 | printf_filtered ("\n"); | |
1540 | } | |
1541 | else if (VALUE_LVAL (value) == lval_memory) | |
1542 | { | |
1543 | printf_filtered (" Previous frame's sp at "); | |
1544 | fputs_filtered (paddress (gdbarch, value_address (value)), | |
1545 | gdb_stdout); | |
1546 | printf_filtered ("\n"); | |
1547 | } | |
1548 | else if (VALUE_LVAL (value) == lval_register) | |
1549 | { | |
1550 | printf_filtered (" Previous frame's sp in %s\n", | |
1551 | gdbarch_register_name (gdbarch, | |
1552 | VALUE_REGNUM (value))); | |
1553 | } | |
1554 | ||
1555 | release_value (value); | |
4f460812 AC |
1556 | need_nl = 0; |
1557 | } | |
1558 | /* else keep quiet. */ | |
1559 | } | |
1560 | ||
1561 | count = 0; | |
f6efe3f8 | 1562 | numregs = gdbarch_num_cooked_regs (gdbarch); |
4f460812 | 1563 | for (i = 0; i < numregs; i++) |
b0e4b369 | 1564 | if (i != sp_regnum |
7500260a | 1565 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4f460812 | 1566 | { |
b0e4b369 AH |
1567 | enum lval_type lval; |
1568 | int optimized; | |
1569 | int unavailable; | |
1570 | CORE_ADDR addr; | |
1571 | int realnum; | |
1572 | ||
4f460812 AC |
1573 | /* Find out the location of the saved register without |
1574 | fetching the corresponding value. */ | |
0fdb4f18 PA |
1575 | frame_register_unwind (fi, i, &optimized, &unavailable, |
1576 | &lval, &addr, &realnum, NULL); | |
4f460812 AC |
1577 | /* For moment, only display registers that were saved on the |
1578 | stack. */ | |
0fdb4f18 | 1579 | if (!optimized && !unavailable && lval == lval_memory) |
4f460812 AC |
1580 | { |
1581 | if (count == 0) | |
1582 | puts_filtered (" Saved registers:\n "); | |
1583 | else | |
1584 | puts_filtered (","); | |
1585 | wrap_here (" "); | |
c9f4d572 | 1586 | printf_filtered (" %s at ", |
7500260a | 1587 | gdbarch_register_name (gdbarch, i)); |
5af949e3 | 1588 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
4f460812 AC |
1589 | count++; |
1590 | } | |
1591 | } | |
1592 | if (count || need_nl) | |
c906108c | 1593 | puts_filtered ("\n"); |
4f460812 | 1594 | } |
c906108c SS |
1595 | } |
1596 | ||
6a70eb7d PW |
1597 | /* Return the innermost frame at level LEVEL. */ |
1598 | ||
1599 | static struct frame_info * | |
1600 | leading_innermost_frame (int level) | |
1601 | { | |
1602 | struct frame_info *leading; | |
1603 | ||
1604 | leading = get_current_frame (); | |
1605 | ||
1606 | gdb_assert (level >= 0); | |
1607 | ||
1608 | while (leading != nullptr && level) | |
1609 | { | |
1610 | QUIT; | |
1611 | leading = get_prev_frame (leading); | |
1612 | level--; | |
1613 | } | |
1614 | ||
1615 | return leading; | |
1616 | } | |
1617 | ||
1618 | /* Return the starting frame needed to handle COUNT outermost frames. */ | |
1619 | ||
1620 | static struct frame_info * | |
1621 | trailing_outermost_frame (int count) | |
1622 | { | |
1623 | struct frame_info *current; | |
1624 | struct frame_info *trailing; | |
1625 | ||
1626 | trailing = get_current_frame (); | |
1627 | ||
1628 | gdb_assert (count > 0); | |
1629 | ||
1630 | current = trailing; | |
1631 | while (current != nullptr && count--) | |
1632 | { | |
1633 | QUIT; | |
1634 | current = get_prev_frame (current); | |
1635 | } | |
1636 | ||
1637 | /* Will stop when CURRENT reaches the top of the stack. | |
1638 | TRAILING will be COUNT below it. */ | |
1639 | while (current != nullptr) | |
1640 | { | |
1641 | QUIT; | |
1642 | trailing = get_prev_frame (trailing); | |
1643 | current = get_prev_frame (current); | |
1644 | } | |
1645 | ||
1646 | return trailing; | |
1647 | } | |
1648 | ||
f67ffa6a AB |
1649 | /* The core of all the "select-frame" sub-commands. Just wraps a call to |
1650 | SELECT_FRAME. */ | |
1651 | ||
1652 | static void | |
1653 | select_frame_command_core (struct frame_info *fi, bool ignored) | |
1654 | { | |
1655 | struct frame_info *prev_frame = get_selected_frame_if_set (); | |
1656 | select_frame (fi); | |
1657 | if (get_selected_frame_if_set () != prev_frame) | |
1658 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); | |
1659 | } | |
1660 | ||
1661 | /* See stack.h. */ | |
1662 | ||
1663 | void | |
1664 | select_frame_for_mi (struct frame_info *fi) | |
1665 | { | |
1666 | select_frame_command_core (fi, FALSE /* Ignored. */); | |
1667 | } | |
1668 | ||
1669 | /* The core of all the "frame" sub-commands. Select frame FI, and if this | |
1670 | means we change frame send out a change notification (otherwise, just | |
1671 | reprint the current frame summary). */ | |
1672 | ||
1673 | static void | |
1674 | frame_command_core (struct frame_info *fi, bool ignored) | |
1675 | { | |
1676 | struct frame_info *prev_frame = get_selected_frame_if_set (); | |
1677 | ||
1678 | select_frame (fi); | |
1679 | if (get_selected_frame_if_set () != prev_frame) | |
1680 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); | |
1681 | else | |
1682 | print_selected_thread_frame (current_uiout, USER_SELECTED_FRAME); | |
1683 | } | |
1684 | ||
1685 | /* The three commands 'frame', 'select-frame', and 'info frame' all have a | |
1686 | common set of sub-commands that allow a specific frame to be selected. | |
1687 | All of the sub-command functions are static methods within this class | |
1688 | template which is then instantiated below. The template parameter is a | |
1689 | callback used to implement the functionality of the base command | |
1690 | ('frame', 'select-frame', or 'info frame'). | |
1691 | ||
1692 | In the template parameter FI is the frame being selected. The | |
1693 | SELECTED_FRAME_P flag is true if the frame being selected was done by | |
1694 | default, which happens when the user uses the base command with no | |
1695 | arguments. For example the commands 'info frame', 'select-frame', | |
1696 | 'frame' will all cause SELECTED_FRAME_P to be true. In all other cases | |
1697 | SELECTED_FRAME_P is false. */ | |
1698 | ||
1699 | template <void (*FPTR) (struct frame_info *fi, bool selected_frame_p)> | |
1700 | class frame_command_helper | |
1701 | { | |
1702 | public: | |
1703 | ||
1704 | /* The "frame level" family of commands. The ARG is an integer that is | |
1705 | the frame's level in the stack. */ | |
1706 | static void | |
1707 | level (const char *arg, int from_tty) | |
1708 | { | |
1709 | int level = value_as_long (parse_and_eval (arg)); | |
1710 | struct frame_info *fid | |
1711 | = find_relative_frame (get_current_frame (), &level); | |
1712 | if (level != 0) | |
1713 | error (_("No frame at level %s."), arg); | |
1714 | FPTR (fid, false); | |
1715 | } | |
1716 | ||
1717 | /* The "frame address" family of commands. ARG is a stack-pointer | |
1718 | address for an existing frame. This command does not allow new | |
1719 | frames to be created. */ | |
1720 | ||
1721 | static void | |
1722 | address (const char *arg, int from_tty) | |
1723 | { | |
1724 | CORE_ADDR addr = value_as_address (parse_and_eval (arg)); | |
1725 | struct frame_info *fid = find_frame_for_address (addr); | |
1726 | if (fid == NULL) | |
1727 | error (_("No frame at address %s."), arg); | |
1728 | FPTR (fid, false); | |
1729 | } | |
1730 | ||
1731 | /* The "frame view" family of commands. ARG is one or two addresses and | |
1732 | is used to view a frame that might be outside the current backtrace. | |
1733 | The addresses are stack-pointer address, and (optional) pc-address. */ | |
1734 | ||
1735 | static void | |
1736 | view (const char *args, int from_tty) | |
1737 | { | |
1738 | struct frame_info *fid; | |
1739 | ||
1740 | if (args == NULL) | |
1741 | error (_("Missing address argument to view a frame")); | |
1742 | ||
1743 | gdb_argv argv (args); | |
1744 | ||
1745 | if (argv.count () == 2) | |
1746 | { | |
1747 | CORE_ADDR addr[2]; | |
1748 | ||
1749 | addr [0] = value_as_address (parse_and_eval (argv[0])); | |
1750 | addr [1] = value_as_address (parse_and_eval (argv[1])); | |
1751 | fid = create_new_frame (addr[0], addr[1]); | |
1752 | } | |
1753 | else | |
1754 | { | |
1755 | CORE_ADDR addr = value_as_address (parse_and_eval (argv[0])); | |
1756 | fid = create_new_frame (addr, false); | |
1757 | } | |
1758 | FPTR (fid, false); | |
1759 | } | |
1760 | ||
1761 | /* The "frame function" family of commands. ARG is the name of a | |
1762 | function within the stack, the first function (searching from frame | |
1763 | 0) with that name will be selected. */ | |
1764 | ||
1765 | static void | |
1766 | function (const char *arg, int from_tty) | |
1767 | { | |
1768 | if (arg == NULL) | |
1769 | error (_("Missing function name argument")); | |
1770 | struct frame_info *fid = find_frame_for_function (arg); | |
1771 | if (fid == NULL) | |
1772 | error (_("No frame for function \"%s\"."), arg); | |
1773 | FPTR (fid, false); | |
1774 | } | |
1775 | ||
1776 | /* The "frame" base command, that is, when no sub-command is specified. | |
1777 | If one argument is provided then we assume that this is a frame's | |
1778 | level as historically, this was the supported command syntax that was | |
1779 | used most often. | |
1780 | ||
1781 | If no argument is provided, then the current frame is selected. */ | |
1782 | ||
1783 | static void | |
1784 | base_command (const char *arg, int from_tty) | |
1785 | { | |
1786 | if (arg == NULL) | |
1787 | FPTR (get_selected_frame (_("No stack.")), true); | |
1788 | else | |
1789 | level (arg, from_tty); | |
1790 | } | |
1791 | }; | |
1792 | ||
1793 | /* Instantiate three FRAME_COMMAND_HELPER instances to implement the | |
1794 | sub-commands for 'info frame', 'frame', and 'select-frame' commands. */ | |
1795 | ||
1796 | static frame_command_helper <info_frame_command_core> info_frame_cmd; | |
1797 | static frame_command_helper <frame_command_core> frame_cmd; | |
1798 | static frame_command_helper <select_frame_command_core> select_frame_cmd; | |
1799 | ||
033a42c2 MK |
1800 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1801 | frames. */ | |
c906108c SS |
1802 | |
1803 | static void | |
1cf7e640 TT |
1804 | backtrace_command_1 (const char *count_exp, frame_filter_flags flags, |
1805 | int no_filters, int from_tty) | |
c906108c SS |
1806 | { |
1807 | struct frame_info *fi; | |
52f0bd74 | 1808 | int count; |
fb7eb8b5 | 1809 | int py_start = 0, py_end = 0; |
6dddc817 | 1810 | enum ext_lang_bt_status result = EXT_LANG_BT_ERROR; |
c906108c SS |
1811 | |
1812 | if (!target_has_stack) | |
8a3fe4f8 | 1813 | error (_("No stack.")); |
c906108c | 1814 | |
c906108c SS |
1815 | if (count_exp) |
1816 | { | |
bb518678 | 1817 | count = parse_and_eval_long (count_exp); |
c906108c | 1818 | if (count < 0) |
fb7eb8b5 | 1819 | py_start = count; |
1e611234 PM |
1820 | else |
1821 | { | |
1822 | py_start = 0; | |
6893c19a TT |
1823 | /* The argument to apply_ext_lang_frame_filter is the number |
1824 | of the final frame to print, and frames start at 0. */ | |
1825 | py_end = count - 1; | |
1e611234 | 1826 | } |
c906108c SS |
1827 | } |
1828 | else | |
1e611234 PM |
1829 | { |
1830 | py_end = -1; | |
1831 | count = -1; | |
1832 | } | |
c906108c | 1833 | |
1e611234 | 1834 | if (! no_filters) |
c906108c | 1835 | { |
6dddc817 | 1836 | enum ext_lang_frame_args arg_type; |
c906108c | 1837 | |
1cf7e640 | 1838 | flags |= PRINT_LEVEL | PRINT_FRAME_INFO | PRINT_ARGS; |
6893c19a TT |
1839 | if (from_tty) |
1840 | flags |= PRINT_MORE_FRAMES; | |
1e611234 PM |
1841 | |
1842 | if (!strcmp (print_frame_arguments, "scalars")) | |
1843 | arg_type = CLI_SCALAR_VALUES; | |
1844 | else if (!strcmp (print_frame_arguments, "all")) | |
1845 | arg_type = CLI_ALL_VALUES; | |
1846 | else | |
1847 | arg_type = NO_VALUES; | |
1848 | ||
6dddc817 DE |
1849 | result = apply_ext_lang_frame_filter (get_current_frame (), flags, |
1850 | arg_type, current_uiout, | |
1851 | py_start, py_end); | |
1e611234 | 1852 | } |
6dddc817 | 1853 | |
1e611234 PM |
1854 | /* Run the inbuilt backtrace if there are no filters registered, or |
1855 | "no-filters" has been specified from the command. */ | |
6dddc817 | 1856 | if (no_filters || result == EXT_LANG_BT_NO_FILTERS) |
1e611234 | 1857 | { |
fb7eb8b5 TT |
1858 | struct frame_info *trailing; |
1859 | ||
1860 | /* The following code must do two things. First, it must set the | |
1861 | variable TRAILING to the frame from which we should start | |
1862 | printing. Second, it must set the variable count to the number | |
1863 | of frames which we should print, or -1 if all of them. */ | |
fb7eb8b5 TT |
1864 | |
1865 | if (count_exp != NULL && count < 0) | |
1866 | { | |
6a70eb7d | 1867 | trailing = trailing_outermost_frame (-count); |
fb7eb8b5 TT |
1868 | count = -1; |
1869 | } | |
6a70eb7d PW |
1870 | else |
1871 | trailing = get_current_frame (); | |
fb7eb8b5 | 1872 | |
59f66be3 | 1873 | for (fi = trailing; fi && count--; fi = get_prev_frame (fi)) |
1e611234 PM |
1874 | { |
1875 | QUIT; | |
1876 | ||
1877 | /* Don't use print_stack_frame; if an error() occurs it probably | |
1878 | means further attempts to backtrace would fail (on the other | |
1879 | hand, perhaps the code does or could be fixed to make sure | |
1880 | the frame->prev field gets set to NULL in that case). */ | |
1881 | ||
08d72866 | 1882 | print_frame_info (fi, 1, LOCATION, 1, 0); |
1cf7e640 | 1883 | if ((flags & PRINT_LOCALS) != 0) |
d0548fa2 PM |
1884 | { |
1885 | struct frame_id frame_id = get_frame_id (fi); | |
8f043999 | 1886 | |
12615cba | 1887 | print_frame_local_vars (fi, false, NULL, NULL, 1, gdb_stdout); |
8f043999 | 1888 | |
d0548fa2 PM |
1889 | /* print_frame_local_vars invalidates FI. */ |
1890 | fi = frame_find_by_id (frame_id); | |
1891 | if (fi == NULL) | |
1892 | { | |
1893 | trailing = NULL; | |
1894 | warning (_("Unable to restore previously selected frame.")); | |
1895 | break; | |
1896 | } | |
8f043999 | 1897 | } |
55feb689 | 1898 | |
1e611234 PM |
1899 | /* Save the last frame to check for error conditions. */ |
1900 | trailing = fi; | |
1901 | } | |
c906108c | 1902 | |
1e611234 PM |
1903 | /* If we've stopped before the end, mention that. */ |
1904 | if (fi && from_tty) | |
1905 | printf_filtered (_("(More stack frames follow...)\n")); | |
55feb689 | 1906 | |
1e611234 PM |
1907 | /* If we've run out of frames, and the reason appears to be an error |
1908 | condition, print it. */ | |
1909 | if (fi == NULL && trailing != NULL) | |
1910 | { | |
1911 | enum unwind_stop_reason reason; | |
55feb689 | 1912 | |
1e611234 PM |
1913 | reason = get_frame_unwind_stop_reason (trailing); |
1914 | if (reason >= UNWIND_FIRST_ERROR) | |
1915 | printf_filtered (_("Backtrace stopped: %s\n"), | |
53e8a631 | 1916 | frame_stop_reason_string (trailing)); |
1e611234 | 1917 | } |
55feb689 | 1918 | } |
c906108c SS |
1919 | } |
1920 | ||
1921 | static void | |
0b39b52e | 1922 | backtrace_command (const char *arg, int from_tty) |
c906108c | 1923 | { |
ea3b0687 | 1924 | bool filters = true; |
1cf7e640 | 1925 | frame_filter_flags flags = 0; |
c906108c | 1926 | |
033a42c2 | 1927 | if (arg) |
c906108c | 1928 | { |
ea3b0687 | 1929 | bool done = false; |
c906108c | 1930 | |
ea3b0687 | 1931 | while (!done) |
c5aa993b | 1932 | { |
ea3b0687 TT |
1933 | const char *save_arg = arg; |
1934 | std::string this_arg = extract_arg (&arg); | |
c5aa993b | 1935 | |
ea3b0687 TT |
1936 | if (this_arg.empty ()) |
1937 | break; | |
c5aa993b | 1938 | |
ea3b0687 TT |
1939 | if (subset_compare (this_arg.c_str (), "no-filters")) |
1940 | filters = false; | |
1941 | else if (subset_compare (this_arg.c_str (), "full")) | |
1cf7e640 | 1942 | flags |= PRINT_LOCALS; |
978d6c75 TT |
1943 | else if (subset_compare (this_arg.c_str (), "hide")) |
1944 | flags |= PRINT_HIDE; | |
c5aa993b JM |
1945 | else |
1946 | { | |
ea3b0687 TT |
1947 | /* Not a recognized argument, so stop. */ |
1948 | arg = save_arg; | |
1949 | done = true; | |
c5aa993b | 1950 | } |
c5aa993b | 1951 | } |
ea3b0687 TT |
1952 | |
1953 | if (*arg == '\0') | |
1954 | arg = NULL; | |
c906108c SS |
1955 | } |
1956 | ||
1cf7e640 | 1957 | backtrace_command_1 (arg, flags, !filters /* no frame-filters */, from_tty); |
c906108c SS |
1958 | } |
1959 | ||
2c58c0a9 PA |
1960 | /* Iterate over the local variables of a block B, calling CB with |
1961 | CB_DATA. */ | |
c906108c | 1962 | |
2c58c0a9 | 1963 | static void |
3977b71f | 1964 | iterate_over_block_locals (const struct block *b, |
2c58c0a9 PA |
1965 | iterate_over_block_arg_local_vars_cb cb, |
1966 | void *cb_data) | |
c906108c | 1967 | { |
8157b174 | 1968 | struct block_iterator iter; |
de4f826b | 1969 | struct symbol *sym; |
c906108c | 1970 | |
de4f826b | 1971 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1972 | { |
c906108c SS |
1973 | switch (SYMBOL_CLASS (sym)) |
1974 | { | |
1975 | case LOC_LOCAL: | |
1976 | case LOC_REGISTER: | |
1977 | case LOC_STATIC: | |
4c2df51b | 1978 | case LOC_COMPUTED: |
41bd68f5 | 1979 | case LOC_OPTIMIZED_OUT: |
2a2d4dc3 AS |
1980 | if (SYMBOL_IS_ARGUMENT (sym)) |
1981 | break; | |
4357ac6c TT |
1982 | if (SYMBOL_DOMAIN (sym) == COMMON_BLOCK_DOMAIN) |
1983 | break; | |
2c58c0a9 | 1984 | (*cb) (SYMBOL_PRINT_NAME (sym), sym, cb_data); |
c906108c SS |
1985 | break; |
1986 | ||
1987 | default: | |
1988 | /* Ignore symbols which are not locals. */ | |
1989 | break; | |
1990 | } | |
1991 | } | |
c906108c SS |
1992 | } |
1993 | ||
65c06092 | 1994 | |
c906108c SS |
1995 | /* Same, but print labels. */ |
1996 | ||
65c06092 JB |
1997 | #if 0 |
1998 | /* Commented out, as the code using this function has also been | |
1999 | commented out. FIXME:brobecker/2009-01-13: Find out why the code | |
2000 | was commented out in the first place. The discussion introducing | |
2001 | this change (2007-12-04: Support lexical blocks and function bodies | |
2002 | that occupy non-contiguous address ranges) did not explain why | |
2003 | this change was made. */ | |
c906108c | 2004 | static int |
5af949e3 UW |
2005 | print_block_frame_labels (struct gdbarch *gdbarch, struct block *b, |
2006 | int *have_default, struct ui_file *stream) | |
c906108c | 2007 | { |
8157b174 | 2008 | struct block_iterator iter; |
52f0bd74 AC |
2009 | struct symbol *sym; |
2010 | int values_printed = 0; | |
c906108c | 2011 | |
de4f826b | 2012 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 2013 | { |
3567439c | 2014 | if (strcmp (SYMBOL_LINKAGE_NAME (sym), "default") == 0) |
c906108c SS |
2015 | { |
2016 | if (*have_default) | |
2017 | continue; | |
2018 | *have_default = 1; | |
2019 | } | |
2020 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
2021 | { | |
2022 | struct symtab_and_line sal; | |
79a45b7d | 2023 | struct value_print_options opts; |
433759f7 | 2024 | |
c906108c SS |
2025 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); |
2026 | values_printed = 1; | |
de5ad195 | 2027 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
79a45b7d TT |
2028 | get_user_print_options (&opts); |
2029 | if (opts.addressprint) | |
c906108c SS |
2030 | { |
2031 | fprintf_filtered (stream, " "); | |
5af949e3 UW |
2032 | fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (sym)), |
2033 | stream); | |
c906108c SS |
2034 | } |
2035 | fprintf_filtered (stream, " in file %s, line %d\n", | |
2036 | sal.symtab->filename, sal.line); | |
2037 | } | |
2038 | } | |
033a42c2 | 2039 | |
c906108c SS |
2040 | return values_printed; |
2041 | } | |
65c06092 | 2042 | #endif |
c906108c | 2043 | |
2c58c0a9 PA |
2044 | /* Iterate over all the local variables in block B, including all its |
2045 | superblocks, stopping when the top-level block is reached. */ | |
2046 | ||
2047 | void | |
3977b71f | 2048 | iterate_over_block_local_vars (const struct block *block, |
2c58c0a9 PA |
2049 | iterate_over_block_arg_local_vars_cb cb, |
2050 | void *cb_data) | |
2051 | { | |
2052 | while (block) | |
2053 | { | |
2054 | iterate_over_block_locals (block, cb, cb_data); | |
2055 | /* After handling the function's top-level block, stop. Don't | |
2056 | continue to its superblock, the block of per-file | |
2057 | symbols. */ | |
2058 | if (BLOCK_FUNCTION (block)) | |
2059 | break; | |
2060 | block = BLOCK_SUPERBLOCK (block); | |
2061 | } | |
2062 | } | |
2063 | ||
2064 | /* Data to be passed around in the calls to the locals and args | |
2065 | iterators. */ | |
c906108c | 2066 | |
2c58c0a9 PA |
2067 | struct print_variable_and_value_data |
2068 | { | |
12615cba PW |
2069 | gdb::optional<compiled_regex> preg; |
2070 | gdb::optional<compiled_regex> treg; | |
8f043999 | 2071 | struct frame_id frame_id; |
2c58c0a9 PA |
2072 | int num_tabs; |
2073 | struct ui_file *stream; | |
2074 | int values_printed; | |
2075 | }; | |
2076 | ||
c378eb4e | 2077 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
2078 | |
2079 | static void | |
2080 | do_print_variable_and_value (const char *print_name, | |
2081 | struct symbol *sym, | |
2082 | void *cb_data) | |
2083 | { | |
19ba03f4 SM |
2084 | struct print_variable_and_value_data *p |
2085 | = (struct print_variable_and_value_data *) cb_data; | |
8f043999 JK |
2086 | struct frame_info *frame; |
2087 | ||
12615cba PW |
2088 | if (p->preg.has_value () |
2089 | && p->preg->exec (SYMBOL_NATURAL_NAME (sym), 0, | |
2090 | NULL, 0) != 0) | |
2091 | return; | |
2092 | if (p->treg.has_value () | |
2093 | && !treg_matches_sym_type_name (*p->treg, sym)) | |
2094 | return; | |
2095 | ||
8f043999 JK |
2096 | frame = frame_find_by_id (p->frame_id); |
2097 | if (frame == NULL) | |
2098 | { | |
2099 | warning (_("Unable to restore previously selected frame.")); | |
2100 | return; | |
2101 | } | |
2102 | ||
2103 | print_variable_and_value (print_name, sym, frame, p->stream, p->num_tabs); | |
2104 | ||
2105 | /* print_variable_and_value invalidates FRAME. */ | |
2106 | frame = NULL; | |
2c58c0a9 | 2107 | |
2c58c0a9 PA |
2108 | p->values_printed = 1; |
2109 | } | |
c906108c | 2110 | |
12615cba PW |
2111 | /* Prepares the regular expression REG from REGEXP. |
2112 | If REGEXP is NULL, it results in an empty regular expression. */ | |
2113 | ||
2114 | static void | |
2115 | prepare_reg (const char *regexp, gdb::optional<compiled_regex> *reg) | |
2116 | { | |
2117 | if (regexp != NULL) | |
2118 | { | |
2119 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
2120 | ? REG_ICASE : 0); | |
2121 | reg->emplace (regexp, cflags, _("Invalid regexp")); | |
2122 | } | |
2123 | else | |
2124 | reg->reset (); | |
2125 | } | |
2126 | ||
8f043999 JK |
2127 | /* Print all variables from the innermost up to the function block of FRAME. |
2128 | Print them with values to STREAM indented by NUM_TABS. | |
12615cba PW |
2129 | If REGEXP is not NULL, only print local variables whose name |
2130 | matches REGEXP. | |
2131 | If T_REGEXP is not NULL, only print local variables whose type | |
2132 | matches T_REGEXP. | |
2133 | If no local variables have been printed and !QUIET, prints a message | |
2134 | explaining why no local variables could be printed. | |
8f043999 JK |
2135 | |
2136 | This function will invalidate FRAME. */ | |
2137 | ||
c906108c | 2138 | static void |
12615cba PW |
2139 | print_frame_local_vars (struct frame_info *frame, |
2140 | bool quiet, | |
2141 | const char *regexp, const char *t_regexp, | |
2142 | int num_tabs, struct ui_file *stream) | |
c906108c | 2143 | { |
2c58c0a9 | 2144 | struct print_variable_and_value_data cb_data; |
3977b71f | 2145 | const struct block *block; |
1d4f5741 PA |
2146 | CORE_ADDR pc; |
2147 | ||
2148 | if (!get_frame_pc_if_available (frame, &pc)) | |
2149 | { | |
12615cba PW |
2150 | if (!quiet) |
2151 | fprintf_filtered (stream, | |
2152 | _("PC unavailable, cannot determine locals.\n")); | |
1d4f5741 PA |
2153 | return; |
2154 | } | |
c906108c | 2155 | |
2c58c0a9 | 2156 | block = get_frame_block (frame, 0); |
c906108c SS |
2157 | if (block == 0) |
2158 | { | |
12615cba PW |
2159 | if (!quiet) |
2160 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
c906108c SS |
2161 | return; |
2162 | } | |
c5aa993b | 2163 | |
12615cba PW |
2164 | prepare_reg (regexp, &cb_data.preg); |
2165 | prepare_reg (t_regexp, &cb_data.treg); | |
8f043999 | 2166 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 PA |
2167 | cb_data.num_tabs = 4 * num_tabs; |
2168 | cb_data.stream = stream; | |
2169 | cb_data.values_printed = 0; | |
2170 | ||
16c3b12f JB |
2171 | /* Temporarily change the selected frame to the given FRAME. |
2172 | This allows routines that rely on the selected frame instead | |
2173 | of being given a frame as parameter to use the correct frame. */ | |
45f25d6c | 2174 | scoped_restore_selected_frame restore_selected_frame; |
16c3b12f JB |
2175 | select_frame (frame); |
2176 | ||
45f25d6c AB |
2177 | iterate_over_block_local_vars (block, |
2178 | do_print_variable_and_value, | |
2179 | &cb_data); | |
8f043999 | 2180 | |
12615cba PW |
2181 | if (!cb_data.values_printed && !quiet) |
2182 | { | |
2183 | if (regexp == NULL && t_regexp == NULL) | |
2184 | fprintf_filtered (stream, _("No locals.\n")); | |
2185 | else | |
2186 | fprintf_filtered (stream, _("No matching locals.\n")); | |
2187 | } | |
c906108c SS |
2188 | } |
2189 | ||
c906108c | 2190 | void |
1d12d88f | 2191 | info_locals_command (const char *args, int from_tty) |
c906108c | 2192 | { |
12615cba PW |
2193 | std::string regexp; |
2194 | std::string t_regexp; | |
2195 | bool quiet = false; | |
2196 | ||
2197 | while (args != NULL | |
2198 | && extract_info_print_args (&args, &quiet, ®exp, &t_regexp)) | |
2199 | ; | |
2200 | ||
2201 | if (args != NULL) | |
2202 | report_unrecognized_option_error ("info locals", args); | |
2203 | ||
033a42c2 | 2204 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
12615cba PW |
2205 | quiet, |
2206 | regexp.empty () ? NULL : regexp.c_str (), | |
2207 | t_regexp.empty () ? NULL : t_regexp.c_str (), | |
b04f3ab4 | 2208 | 0, gdb_stdout); |
c906108c SS |
2209 | } |
2210 | ||
d392224a | 2211 | /* Iterate over all the argument variables in block B. */ |
2c58c0a9 PA |
2212 | |
2213 | void | |
3977b71f | 2214 | iterate_over_block_arg_vars (const struct block *b, |
2c58c0a9 PA |
2215 | iterate_over_block_arg_local_vars_cb cb, |
2216 | void *cb_data) | |
c906108c | 2217 | { |
8157b174 | 2218 | struct block_iterator iter; |
52f0bd74 | 2219 | struct symbol *sym, *sym2; |
c906108c | 2220 | |
de4f826b | 2221 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 2222 | { |
2a2d4dc3 AS |
2223 | /* Don't worry about things which aren't arguments. */ |
2224 | if (SYMBOL_IS_ARGUMENT (sym)) | |
c906108c | 2225 | { |
c906108c SS |
2226 | /* We have to look up the symbol because arguments can have |
2227 | two entries (one a parameter, one a local) and the one we | |
2228 | want is the local, which lookup_symbol will find for us. | |
2229 | This includes gcc1 (not gcc2) on the sparc when passing a | |
2230 | small structure and gcc2 when the argument type is float | |
2231 | and it is passed as a double and converted to float by | |
2232 | the prologue (in the latter case the type of the LOC_ARG | |
2233 | symbol is double and the type of the LOC_LOCAL symbol is | |
2234 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
2235 | are not combined in symbol-reading. */ | |
2236 | ||
de63c46b PA |
2237 | sym2 = lookup_symbol_search_name (SYMBOL_SEARCH_NAME (sym), |
2238 | b, VAR_DOMAIN).symbol; | |
2c58c0a9 | 2239 | (*cb) (SYMBOL_PRINT_NAME (sym), sym2, cb_data); |
c906108c SS |
2240 | } |
2241 | } | |
2c58c0a9 PA |
2242 | } |
2243 | ||
8f043999 JK |
2244 | /* Print all argument variables of the function of FRAME. |
2245 | Print them with values to STREAM. | |
12615cba PW |
2246 | If REGEXP is not NULL, only print argument variables whose name |
2247 | matches REGEXP. | |
2248 | If T_REGEXP is not NULL, only print argument variables whose type | |
2249 | matches T_REGEXP. | |
2250 | If no argument variables have been printed and !QUIET, prints a message | |
2251 | explaining why no argument variables could be printed. | |
8f043999 JK |
2252 | |
2253 | This function will invalidate FRAME. */ | |
2254 | ||
2c58c0a9 | 2255 | static void |
12615cba PW |
2256 | print_frame_arg_vars (struct frame_info *frame, |
2257 | bool quiet, | |
2258 | const char *regexp, const char *t_regexp, | |
2259 | struct ui_file *stream) | |
2c58c0a9 PA |
2260 | { |
2261 | struct print_variable_and_value_data cb_data; | |
2262 | struct symbol *func; | |
1d4f5741 | 2263 | CORE_ADDR pc; |
12615cba PW |
2264 | gdb::optional<compiled_regex> preg; |
2265 | gdb::optional<compiled_regex> treg; | |
1d4f5741 PA |
2266 | |
2267 | if (!get_frame_pc_if_available (frame, &pc)) | |
2268 | { | |
12615cba PW |
2269 | if (!quiet) |
2270 | fprintf_filtered (stream, | |
2271 | _("PC unavailable, cannot determine args.\n")); | |
1d4f5741 PA |
2272 | return; |
2273 | } | |
2c58c0a9 PA |
2274 | |
2275 | func = get_frame_function (frame); | |
2276 | if (func == NULL) | |
2277 | { | |
12615cba PW |
2278 | if (!quiet) |
2279 | fprintf_filtered (stream, _("No symbol table info available.\n")); | |
2c58c0a9 PA |
2280 | return; |
2281 | } | |
2282 | ||
12615cba PW |
2283 | prepare_reg (regexp, &cb_data.preg); |
2284 | prepare_reg (t_regexp, &cb_data.treg); | |
8f043999 | 2285 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 | 2286 | cb_data.num_tabs = 0; |
d392224a | 2287 | cb_data.stream = stream; |
2c58c0a9 PA |
2288 | cb_data.values_printed = 0; |
2289 | ||
2290 | iterate_over_block_arg_vars (SYMBOL_BLOCK_VALUE (func), | |
2291 | do_print_variable_and_value, &cb_data); | |
033a42c2 | 2292 | |
8f043999 JK |
2293 | /* do_print_variable_and_value invalidates FRAME. */ |
2294 | frame = NULL; | |
2295 | ||
12615cba PW |
2296 | if (!cb_data.values_printed && !quiet) |
2297 | { | |
2298 | if (regexp == NULL && t_regexp == NULL) | |
2299 | fprintf_filtered (stream, _("No arguments.\n")); | |
2300 | else | |
2301 | fprintf_filtered (stream, _("No matching arguments.\n")); | |
2302 | } | |
c906108c SS |
2303 | } |
2304 | ||
2305 | void | |
12615cba | 2306 | info_args_command (const char *args, int from_tty) |
c906108c | 2307 | { |
12615cba PW |
2308 | std::string regexp; |
2309 | std::string t_regexp; | |
d54cfd76 | 2310 | bool quiet = false; |
12615cba PW |
2311 | |
2312 | while (args != NULL | |
2313 | && extract_info_print_args (&args, &quiet, ®exp, &t_regexp)) | |
2314 | ; | |
2315 | ||
2316 | if (args != NULL) | |
2317 | report_unrecognized_option_error ("info args", args); | |
2318 | ||
2319 | ||
033a42c2 | 2320 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
12615cba PW |
2321 | quiet, |
2322 | regexp.empty () ? NULL : regexp.c_str (), | |
2323 | t_regexp.empty () ? NULL : t_regexp.c_str (), | |
b04f3ab4 | 2324 | gdb_stdout); |
c906108c | 2325 | } |
c906108c | 2326 | \f |
c906108c | 2327 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
2328 | Can return zero under various legitimate circumstances. |
2329 | ||
2330 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
2331 | code address within the block returned. We use this to decide | |
2332 | which macros are in scope. */ | |
c906108c | 2333 | |
3977b71f | 2334 | const struct block * |
ae767bfb | 2335 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c | 2336 | { |
d729566a | 2337 | if (!has_stack_frames ()) |
8ea051c5 PA |
2338 | return 0; |
2339 | ||
206415a3 | 2340 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
2341 | } |
2342 | ||
2343 | /* Find a frame a certain number of levels away from FRAME. | |
2344 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
2345 | Positive means go to earlier frames (up); negative, the reverse. | |
2346 | The int that contains the number of levels is counted toward | |
2347 | zero as the frames for those levels are found. | |
2348 | If the top or bottom frame is reached, that frame is returned, | |
2349 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
2350 | how much farther the original request asked to go. */ | |
2351 | ||
2352 | struct frame_info * | |
033a42c2 | 2353 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 2354 | { |
033a42c2 MK |
2355 | /* Going up is simple: just call get_prev_frame enough times or |
2356 | until the initial frame is reached. */ | |
c906108c SS |
2357 | while (*level_offset_ptr > 0) |
2358 | { | |
033a42c2 | 2359 | struct frame_info *prev = get_prev_frame (frame); |
433759f7 | 2360 | |
033a42c2 | 2361 | if (!prev) |
c906108c SS |
2362 | break; |
2363 | (*level_offset_ptr)--; | |
2364 | frame = prev; | |
2365 | } | |
033a42c2 | 2366 | |
c906108c | 2367 | /* Going down is just as simple. */ |
033a42c2 | 2368 | while (*level_offset_ptr < 0) |
c906108c | 2369 | { |
033a42c2 | 2370 | struct frame_info *next = get_next_frame (frame); |
433759f7 | 2371 | |
033a42c2 MK |
2372 | if (!next) |
2373 | break; | |
2374 | (*level_offset_ptr)++; | |
2375 | frame = next; | |
c906108c | 2376 | } |
033a42c2 | 2377 | |
c906108c SS |
2378 | return frame; |
2379 | } | |
2380 | ||
033a42c2 MK |
2381 | /* Select the frame up one or COUNT_EXP stack levels from the |
2382 | previously selected frame, and print it briefly. */ | |
c906108c | 2383 | |
c906108c | 2384 | static void |
d3d3328b | 2385 | up_silently_base (const char *count_exp) |
c906108c | 2386 | { |
033a42c2 MK |
2387 | struct frame_info *frame; |
2388 | int count = 1; | |
2389 | ||
c906108c | 2390 | if (count_exp) |
bb518678 | 2391 | count = parse_and_eval_long (count_exp); |
c5aa993b | 2392 | |
033a42c2 MK |
2393 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2394 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 2395 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 2396 | select_frame (frame); |
c906108c SS |
2397 | } |
2398 | ||
2399 | static void | |
0b39b52e | 2400 | up_silently_command (const char *count_exp, int from_tty) |
c906108c | 2401 | { |
c5aa993b | 2402 | up_silently_base (count_exp); |
c906108c SS |
2403 | } |
2404 | ||
2405 | static void | |
0b39b52e | 2406 | up_command (const char *count_exp, int from_tty) |
c906108c SS |
2407 | { |
2408 | up_silently_base (count_exp); | |
76727919 | 2409 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); |
c906108c SS |
2410 | } |
2411 | ||
033a42c2 MK |
2412 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
2413 | selected frame, and print it briefly. */ | |
c906108c | 2414 | |
c906108c | 2415 | static void |
d3d3328b | 2416 | down_silently_base (const char *count_exp) |
c906108c | 2417 | { |
52f0bd74 | 2418 | struct frame_info *frame; |
033a42c2 | 2419 | int count = -1; |
f89b749f | 2420 | |
c906108c | 2421 | if (count_exp) |
bb518678 | 2422 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 2423 | |
033a42c2 MK |
2424 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2425 | if (count != 0 && count_exp == NULL) | |
c906108c | 2426 | { |
033a42c2 MK |
2427 | /* We only do this if COUNT_EXP is not specified. That way |
2428 | "down" means to really go down (and let me know if that is | |
2429 | impossible), but "down 9999" can be used to mean go all the | |
2430 | way down without getting an error. */ | |
c906108c | 2431 | |
033a42c2 | 2432 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
2433 | } |
2434 | ||
0f7d239c | 2435 | select_frame (frame); |
c906108c SS |
2436 | } |
2437 | ||
c906108c | 2438 | static void |
0b39b52e | 2439 | down_silently_command (const char *count_exp, int from_tty) |
c906108c SS |
2440 | { |
2441 | down_silently_base (count_exp); | |
c906108c SS |
2442 | } |
2443 | ||
2444 | static void | |
0b39b52e | 2445 | down_command (const char *count_exp, int from_tty) |
c906108c SS |
2446 | { |
2447 | down_silently_base (count_exp); | |
76727919 | 2448 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); |
c906108c | 2449 | } |
033a42c2 | 2450 | |
8b93c638 | 2451 | void |
0b39b52e | 2452 | return_command (const char *retval_exp, int from_tty) |
c906108c | 2453 | { |
901900c4 MGD |
2454 | /* Initialize it just to avoid a GCC false warning. */ |
2455 | enum return_value_convention rv_conv = RETURN_VALUE_STRUCT_CONVENTION; | |
5ed92fa8 | 2456 | struct frame_info *thisframe; |
d80b854b | 2457 | struct gdbarch *gdbarch; |
c906108c | 2458 | struct symbol *thisfun; |
3d6d86c6 | 2459 | struct value *return_value = NULL; |
6a3a010b | 2460 | struct value *function = NULL; |
fc70c2a0 | 2461 | const char *query_prefix = ""; |
c906108c | 2462 | |
5ed92fa8 UW |
2463 | thisframe = get_selected_frame ("No selected frame."); |
2464 | thisfun = get_frame_function (thisframe); | |
d80b854b | 2465 | gdbarch = get_frame_arch (thisframe); |
c906108c | 2466 | |
edb3359d DJ |
2467 | if (get_frame_type (get_current_frame ()) == INLINE_FRAME) |
2468 | error (_("Can not force return from an inlined function.")); | |
2469 | ||
fc70c2a0 AC |
2470 | /* Compute the return value. If the computation triggers an error, |
2471 | let it bail. If the return type can't be handled, set | |
2472 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
2473 | message. */ | |
c906108c SS |
2474 | if (retval_exp) |
2475 | { | |
4d01a485 | 2476 | expression_up retval_expr = parse_expression (retval_exp); |
c906108c SS |
2477 | struct type *return_type = NULL; |
2478 | ||
fc70c2a0 AC |
2479 | /* Compute the return value. Should the computation fail, this |
2480 | call throws an error. */ | |
4d01a485 | 2481 | return_value = evaluate_expression (retval_expr.get ()); |
c906108c | 2482 | |
fc70c2a0 AC |
2483 | /* Cast return value to the return type of the function. Should |
2484 | the cast fail, this call throws an error. */ | |
c906108c SS |
2485 | if (thisfun != NULL) |
2486 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
2487 | if (return_type == NULL) | |
61ff14c6 | 2488 | { |
9eaf6705 TT |
2489 | if (retval_expr->elts[0].opcode != UNOP_CAST |
2490 | && retval_expr->elts[0].opcode != UNOP_CAST_TYPE) | |
61ff14c6 JK |
2491 | error (_("Return value type not available for selected " |
2492 | "stack frame.\n" | |
2493 | "Please use an explicit cast of the value to return.")); | |
2494 | return_type = value_type (return_value); | |
2495 | } | |
f168693b | 2496 | return_type = check_typedef (return_type); |
c906108c SS |
2497 | return_value = value_cast (return_type, return_value); |
2498 | ||
fc70c2a0 AC |
2499 | /* Make sure the value is fully evaluated. It may live in the |
2500 | stack frame we're about to pop. */ | |
d69fe07e | 2501 | if (value_lazy (return_value)) |
c906108c | 2502 | value_fetch_lazy (return_value); |
c906108c | 2503 | |
6a3a010b | 2504 | if (thisfun != NULL) |
63e43d3a | 2505 | function = read_var_value (thisfun, NULL, thisframe); |
6a3a010b | 2506 | |
bbfdfe1c | 2507 | rv_conv = RETURN_VALUE_REGISTER_CONVENTION; |
667e784f AC |
2508 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
2509 | /* If the return-type is "void", don't try to find the | |
2510 | return-value's location. However, do still evaluate the | |
2511 | return expression so that, even when the expression result | |
2512 | is discarded, side effects such as "return i++" still | |
033a42c2 | 2513 | occur. */ |
667e784f | 2514 | return_value = NULL; |
bbfdfe1c | 2515 | else if (thisfun != NULL) |
fc70c2a0 | 2516 | { |
bbfdfe1c DM |
2517 | rv_conv = struct_return_convention (gdbarch, function, return_type); |
2518 | if (rv_conv == RETURN_VALUE_STRUCT_CONVENTION | |
2519 | || rv_conv == RETURN_VALUE_ABI_RETURNS_ADDRESS) | |
2520 | { | |
2521 | query_prefix = "The location at which to store the " | |
2522 | "function's return value is unknown.\n" | |
2523 | "If you continue, the return value " | |
2524 | "that you specified will be ignored.\n"; | |
2525 | return_value = NULL; | |
2526 | } | |
fc70c2a0 | 2527 | } |
c906108c SS |
2528 | } |
2529 | ||
fc70c2a0 AC |
2530 | /* Does an interactive user really want to do this? Include |
2531 | information, such as how well GDB can handle the return value, in | |
2532 | the query message. */ | |
2533 | if (from_tty) | |
2534 | { | |
2535 | int confirmed; | |
433759f7 | 2536 | |
fc70c2a0 | 2537 | if (thisfun == NULL) |
e2e0b3e5 | 2538 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
2539 | query_prefix); |
2540 | else | |
743649fd MW |
2541 | { |
2542 | if (TYPE_NO_RETURN (thisfun->type)) | |
d35b90fb | 2543 | warning (_("Function does not return normally to caller.")); |
743649fd MW |
2544 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
2545 | SYMBOL_PRINT_NAME (thisfun)); | |
2546 | } | |
fc70c2a0 | 2547 | if (!confirmed) |
8a3fe4f8 | 2548 | error (_("Not confirmed")); |
fc70c2a0 | 2549 | } |
c906108c | 2550 | |
a45ae3ed UW |
2551 | /* Discard the selected frame and all frames inner-to it. */ |
2552 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 2553 | |
a1f5b845 | 2554 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
2555 | if (return_value != NULL) |
2556 | { | |
df407dfe | 2557 | struct type *return_type = value_type (return_value); |
b926417a | 2558 | struct gdbarch *cache_arch = get_current_regcache ()->arch (); |
42e2132c | 2559 | |
bbfdfe1c DM |
2560 | gdb_assert (rv_conv != RETURN_VALUE_STRUCT_CONVENTION |
2561 | && rv_conv != RETURN_VALUE_ABI_RETURNS_ADDRESS); | |
b926417a | 2562 | gdbarch_return_value (cache_arch, function, return_type, |
594f7785 | 2563 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 2564 | value_contents (return_value) /*write*/); |
fc70c2a0 | 2565 | } |
1a2aab69 | 2566 | |
fc70c2a0 AC |
2567 | /* If we are at the end of a call dummy now, pop the dummy frame |
2568 | too. */ | |
e8bcf01f AC |
2569 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
2570 | frame_pop (get_current_frame ()); | |
1a2aab69 | 2571 | |
edbbff4a | 2572 | select_frame (get_current_frame ()); |
c906108c | 2573 | /* If interactive, print the frame that is now current. */ |
c906108c | 2574 | if (from_tty) |
edbbff4a | 2575 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
c906108c SS |
2576 | } |
2577 | ||
39f0c204 AB |
2578 | /* Find the most inner frame in the current stack for a function called |
2579 | FUNCTION_NAME. If no matching frame is found return NULL. */ | |
c906108c | 2580 | |
39f0c204 AB |
2581 | static struct frame_info * |
2582 | find_frame_for_function (const char *function_name) | |
c906108c | 2583 | { |
39f0c204 AB |
2584 | /* Used to hold the lower and upper addresses for each of the |
2585 | SYMTAB_AND_LINEs found for functions matching FUNCTION_NAME. */ | |
2586 | struct function_bounds | |
2587 | { | |
2588 | CORE_ADDR low, high; | |
2589 | }; | |
033a42c2 | 2590 | struct frame_info *frame; |
39f0c204 | 2591 | bool found = false; |
c906108c | 2592 | int level = 1; |
c906108c | 2593 | |
39f0c204 | 2594 | gdb_assert (function_name != NULL); |
c906108c | 2595 | |
edbbff4a | 2596 | frame = get_current_frame (); |
6c5b2ebe | 2597 | std::vector<symtab_and_line> sals |
39f0c204 AB |
2598 | = decode_line_with_current_source (function_name, |
2599 | DECODE_LINE_FUNFIRSTLINE); | |
0b868b60 | 2600 | gdb::def_vector<function_bounds> func_bounds (sals.size ()); |
39f0c204 | 2601 | for (size_t i = 0; i < sals.size (); i++) |
c906108c | 2602 | { |
6c5b2ebe | 2603 | if (sals[i].pspace != current_program_space) |
f8eba3c6 | 2604 | func_bounds[i].low = func_bounds[i].high = 0; |
6c5b2ebe PA |
2605 | else if (sals[i].pc == 0 |
2606 | || find_pc_partial_function (sals[i].pc, NULL, | |
f8eba3c6 TT |
2607 | &func_bounds[i].low, |
2608 | &func_bounds[i].high) == 0) | |
39f0c204 | 2609 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
2610 | } |
2611 | ||
2612 | do | |
2613 | { | |
6c5b2ebe | 2614 | for (size_t i = 0; (i < sals.size () && !found); i++) |
033a42c2 MK |
2615 | found = (get_frame_pc (frame) >= func_bounds[i].low |
2616 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
2617 | if (!found) |
2618 | { | |
2619 | level = 1; | |
033a42c2 | 2620 | frame = find_relative_frame (frame, &level); |
c906108c SS |
2621 | } |
2622 | } | |
2623 | while (!found && level == 0); | |
2624 | ||
c906108c | 2625 | if (!found) |
39f0c204 AB |
2626 | frame = NULL; |
2627 | ||
2628 | return frame; | |
2629 | } | |
2630 | ||
2631 | /* Implements the dbx 'func' command. */ | |
2632 | ||
2633 | static void | |
2634 | func_command (const char *arg, int from_tty) | |
2635 | { | |
2636 | if (arg == NULL) | |
2637 | return; | |
2638 | ||
2639 | struct frame_info *frame = find_frame_for_function (arg); | |
2640 | if (frame == NULL) | |
61367c61 | 2641 | error (_("'%s' not within current stack frame."), arg); |
39f0c204 AB |
2642 | if (frame != get_selected_frame (NULL)) |
2643 | { | |
2644 | select_frame (frame); | |
2645 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); | |
2646 | } | |
c906108c | 2647 | } |
033a42c2 | 2648 | |
6a70eb7d PW |
2649 | /* Apply a GDB command to all stack frames, or a set of identified frames, |
2650 | or innermost COUNT frames. | |
2651 | With a negative COUNT, apply command on outermost -COUNT frames. | |
2652 | ||
2653 | frame apply 3 info frame Apply 'info frame' to frames 0, 1, 2 | |
2654 | frame apply -3 info frame Apply 'info frame' to outermost 3 frames. | |
2655 | frame apply all x/i $pc Apply 'x/i $pc' cmd to all frames. | |
2656 | frame apply all -s p local_var_no_idea_in_which_frame | |
2657 | If a frame has a local variable called | |
2658 | local_var_no_idea_in_which_frame, print frame | |
2659 | and value of local_var_no_idea_in_which_frame. | |
2660 | frame apply all -s -q p local_var_no_idea_in_which_frame | |
2661 | Same as before, but only print the variable value. | |
2662 | frame apply level 2-5 0 4-7 -s p i = i + 1 | |
2663 | Adds 1 to the variable i in the specified frames. | |
2664 | Note that i will be incremented twice in | |
2665 | frames 4 and 5. */ | |
2666 | ||
2667 | /* Apply a GDB command to COUNT stack frames, starting at TRAILING. | |
2668 | CMD starts with 0 or more qcs flags followed by the GDB command to apply. | |
2669 | COUNT -1 means all frames starting at TRAILING. WHICH_COMMAND is used | |
2670 | for error messages. */ | |
2671 | ||
2672 | static void | |
2673 | frame_apply_command_count (const char *which_command, | |
2674 | const char *cmd, int from_tty, | |
2675 | struct frame_info *trailing, int count) | |
2676 | { | |
2677 | qcs_flags flags; | |
2678 | struct frame_info *fi; | |
2679 | ||
2680 | while (cmd != NULL && parse_flags_qcs (which_command, &cmd, &flags)) | |
2681 | ; | |
2682 | ||
2683 | if (cmd == NULL || *cmd == '\0') | |
2684 | error (_("Please specify a command to apply on the selected frames")); | |
2685 | ||
2686 | /* The below will restore the current inferior/thread/frame. | |
2687 | Usually, only the frame is effectively to be restored. | |
2688 | But in case CMD switches of inferior/thread, better restore | |
2689 | these also. */ | |
2690 | scoped_restore_current_thread restore_thread; | |
2691 | ||
2692 | for (fi = trailing; fi && count--; fi = get_prev_frame (fi)) | |
2693 | { | |
2694 | QUIT; | |
2695 | ||
2696 | select_frame (fi); | |
2697 | TRY | |
2698 | { | |
2699 | std::string cmd_result; | |
2700 | { | |
2701 | /* In case CMD switches of inferior/thread/frame, the below | |
2702 | restores the inferior/thread/frame. FI can then be | |
2703 | set to the selected frame. */ | |
2704 | scoped_restore_current_thread restore_fi_current_frame; | |
2705 | ||
2706 | cmd_result = execute_command_to_string (cmd, from_tty); | |
2707 | } | |
2708 | fi = get_selected_frame (_("frame apply " | |
2709 | "unable to get selected frame.")); | |
2710 | if (!flags.silent || cmd_result.length () > 0) | |
2711 | { | |
2712 | if (!flags.quiet) | |
2713 | print_stack_frame (fi, 1, LOCATION, 0); | |
2714 | printf_filtered ("%s", cmd_result.c_str ()); | |
2715 | } | |
2716 | } | |
2717 | CATCH (ex, RETURN_MASK_ERROR) | |
2718 | { | |
2719 | fi = get_selected_frame (_("frame apply " | |
2720 | "unable to get selected frame.")); | |
2721 | if (!flags.silent) | |
2722 | { | |
2723 | if (!flags.quiet) | |
2724 | print_stack_frame (fi, 1, LOCATION, 0); | |
2725 | if (flags.cont) | |
2726 | printf_filtered ("%s\n", ex.message); | |
2727 | else | |
2728 | throw_exception (ex); | |
2729 | } | |
2730 | } | |
2731 | END_CATCH; | |
2732 | } | |
2733 | } | |
2734 | ||
2735 | /* Implementation of the "frame apply level" command. */ | |
2736 | ||
2737 | static void | |
2738 | frame_apply_level_command (const char *cmd, int from_tty) | |
2739 | { | |
2740 | if (!target_has_stack) | |
2741 | error (_("No stack.")); | |
2742 | ||
2743 | bool level_found = false; | |
2744 | const char *levels_str = cmd; | |
2745 | number_or_range_parser levels (levels_str); | |
2746 | ||
2747 | /* Skip the LEVEL list to find the flags and command args. */ | |
2748 | while (!levels.finished ()) | |
2749 | { | |
8d49165d TT |
2750 | /* Call for effect. */ |
2751 | levels.get_number (); | |
6a70eb7d PW |
2752 | |
2753 | level_found = true; | |
2754 | if (levels.in_range ()) | |
2755 | levels.skip_range (); | |
2756 | } | |
2757 | ||
2758 | if (!level_found) | |
2759 | error (_("Missing or invalid LEVEL... argument")); | |
2760 | ||
2761 | cmd = levels.cur_tok (); | |
2762 | ||
2763 | /* Redo the LEVELS parsing, but applying COMMAND. */ | |
2764 | levels.init (levels_str); | |
2765 | while (!levels.finished ()) | |
2766 | { | |
2767 | const int level_beg = levels.get_number (); | |
2768 | int n_frames; | |
2769 | ||
2770 | if (levels.in_range ()) | |
2771 | { | |
2772 | n_frames = levels.end_value () - level_beg + 1; | |
2773 | levels.skip_range (); | |
2774 | } | |
2775 | else | |
2776 | n_frames = 1; | |
2777 | ||
2778 | frame_apply_command_count ("frame apply level", cmd, from_tty, | |
2779 | leading_innermost_frame (level_beg), n_frames); | |
2780 | } | |
2781 | } | |
2782 | ||
2783 | /* Implementation of the "frame apply all" command. */ | |
2784 | ||
2785 | static void | |
2786 | frame_apply_all_command (const char *cmd, int from_tty) | |
2787 | { | |
2788 | if (!target_has_stack) | |
2789 | error (_("No stack.")); | |
2790 | ||
2791 | frame_apply_command_count ("frame apply all", cmd, from_tty, | |
2792 | get_current_frame (), INT_MAX); | |
2793 | } | |
2794 | ||
2795 | /* Implementation of the "frame apply" command. */ | |
2796 | ||
2797 | static void | |
2798 | frame_apply_command (const char* cmd, int from_tty) | |
2799 | { | |
2800 | int count; | |
2801 | struct frame_info *trailing; | |
2802 | ||
2803 | if (!target_has_stack) | |
2804 | error (_("No stack.")); | |
2805 | ||
2806 | if (cmd == NULL) | |
2807 | error (_("Missing COUNT argument.")); | |
2808 | count = get_number_trailer (&cmd, 0); | |
2809 | if (count == 0) | |
2810 | error (_("Invalid COUNT argument.")); | |
2811 | ||
2812 | if (count < 0) | |
2813 | { | |
2814 | trailing = trailing_outermost_frame (-count); | |
2815 | count = -1; | |
2816 | } | |
2817 | else | |
2818 | trailing = get_current_frame (); | |
2819 | ||
2820 | frame_apply_command_count ("frame apply", cmd, from_tty, | |
2821 | trailing, count); | |
2822 | } | |
2823 | ||
2824 | /* Implementation of the "faas" command. */ | |
2825 | ||
2826 | static void | |
2827 | faas_command (const char *cmd, int from_tty) | |
2828 | { | |
2829 | std::string expanded = std::string ("frame apply all -s ") + cmd; | |
2830 | execute_command (expanded.c_str (), from_tty); | |
2831 | } | |
2832 | ||
2833 | ||
f67ffa6a AB |
2834 | /* Find inner-mode frame with frame address ADDRESS. Return NULL if no |
2835 | matching frame can be found. */ | |
2836 | ||
2837 | static struct frame_info * | |
2838 | find_frame_for_address (CORE_ADDR address) | |
2839 | { | |
2840 | struct frame_id id; | |
2841 | struct frame_info *fid; | |
2842 | ||
2843 | id = frame_id_build_wild (address); | |
2844 | ||
2845 | /* If (s)he specifies the frame with an address, he deserves | |
2846 | what (s)he gets. Still, give the highest one that matches. | |
2847 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
2848 | know). */ | |
2849 | for (fid = get_current_frame (); | |
2850 | fid != NULL; | |
2851 | fid = get_prev_frame (fid)) | |
2852 | { | |
2853 | if (frame_id_eq (id, get_frame_id (fid))) | |
2854 | { | |
2855 | struct frame_info *prev_frame; | |
2856 | ||
2857 | while (1) | |
2858 | { | |
2859 | prev_frame = get_prev_frame (fid); | |
2860 | if (!prev_frame | |
2861 | || !frame_id_eq (id, get_frame_id (prev_frame))) | |
2862 | break; | |
2863 | fid = prev_frame; | |
2864 | } | |
2865 | return fid; | |
2866 | } | |
2867 | } | |
2868 | return NULL; | |
2869 | } | |
2870 | ||
2871 | \f | |
2872 | ||
2873 | /* Commands with a prefix of `frame apply'. */ | |
2874 | static struct cmd_list_element *frame_apply_cmd_list = NULL; | |
2875 | ||
6a70eb7d | 2876 | /* Commands with a prefix of `frame'. */ |
f67ffa6a AB |
2877 | static struct cmd_list_element *frame_cmd_list = NULL; |
2878 | ||
2879 | /* Commands with a prefix of `select frame'. */ | |
2880 | static struct cmd_list_element *select_frame_cmd_list = NULL; | |
2881 | ||
2882 | /* Commands with a prefix of `info frame'. */ | |
2883 | static struct cmd_list_element *info_frame_cmd_list = NULL; | |
6a70eb7d | 2884 | |
c906108c | 2885 | void |
fba45db2 | 2886 | _initialize_stack (void) |
c906108c | 2887 | { |
f67ffa6a | 2888 | struct cmd_list_element *cmd; |
6a70eb7d | 2889 | |
1bedd215 AC |
2890 | add_com ("return", class_stack, return_command, _("\ |
2891 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
2892 | Control remains in the debugger, but when you continue\n\ |
2893 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
2894 | If an argument is given, it is an expression for the value to return.")); |
2895 | ||
2896 | add_com ("up", class_stack, up_command, _("\ | |
2897 | Select and print stack frame that called this one.\n\ | |
2898 | An argument says how many frames up to go.")); | |
2899 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
2900 | Same as the `up' command, but does not print anything.\n\ | |
2901 | This is useful in command scripts.")); | |
2902 | ||
2903 | add_com ("down", class_stack, down_command, _("\ | |
2904 | Select and print stack frame called by this one.\n\ | |
2905 | An argument says how many frames down to go.")); | |
c906108c SS |
2906 | add_com_alias ("do", "down", class_stack, 1); |
2907 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
2908 | add_com ("down-silently", class_support, down_silently_command, _("\ |
2909 | Same as the `down' command, but does not print anything.\n\ | |
2910 | This is useful in command scripts.")); | |
c906108c | 2911 | |
f67ffa6a AB |
2912 | add_prefix_cmd ("frame", class_stack, |
2913 | &frame_cmd.base_command, _("\ | |
2914 | Select and print a stack frame.\n\ | |
2915 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ | |
2916 | A single numerical argument specifies the frame to select."), | |
2917 | &frame_cmd_list, "frame ", 1, &cmdlist); | |
c906108c SS |
2918 | |
2919 | add_com_alias ("f", "frame", class_stack, 1); | |
2920 | ||
6a70eb7d PW |
2921 | #define FRAME_APPLY_FLAGS_HELP "\ |
2922 | Prints the frame location information followed by COMMAND output.\n\ | |
2923 | FLAG arguments are -q (quiet), -c (continue), -s (silent).\n\ | |
2924 | Flag -q disables printing the frame location information.\n\ | |
2925 | By default, if a COMMAND raises an error, frame apply is aborted.\n\ | |
2926 | Flag -c indicates to print the error and continue.\n\ | |
2927 | Flag -s indicates to silently ignore a COMMAND that raises an error\n\ | |
2928 | or produces no output." | |
2929 | ||
2930 | add_prefix_cmd ("apply", class_stack, frame_apply_command, | |
2931 | _("Apply a command to a number of frames.\n\ | |
2932 | Usage: frame apply COUNT [FLAG]... COMMAND\n\ | |
2933 | With a negative COUNT argument, applies the command on outermost -COUNT frames.\n" | |
2934 | FRAME_APPLY_FLAGS_HELP), | |
f67ffa6a | 2935 | &frame_apply_cmd_list, "frame apply ", 1, &frame_cmd_list); |
6a70eb7d PW |
2936 | |
2937 | add_cmd ("all", class_stack, frame_apply_all_command, | |
2938 | _("\ | |
2939 | Apply a command to all frames.\n\ | |
2940 | \n\ | |
2941 | Usage: frame apply all [FLAG]... COMMAND\n" | |
2942 | FRAME_APPLY_FLAGS_HELP), | |
f67ffa6a | 2943 | &frame_apply_cmd_list); |
6a70eb7d PW |
2944 | |
2945 | add_cmd ("level", class_stack, frame_apply_level_command, | |
2946 | _("\ | |
2947 | Apply a command to a list of frames.\n\ | |
2948 | \n\ | |
2949 | Usage: frame apply level LEVEL... [FLAG]... COMMAND\n\ | |
2950 | ID is a space-separated list of LEVELs of frames to apply COMMAND on.\n" | |
2951 | FRAME_APPLY_FLAGS_HELP), | |
f67ffa6a | 2952 | &frame_apply_cmd_list); |
6a70eb7d PW |
2953 | |
2954 | add_com ("faas", class_stack, faas_command, _("\ | |
2955 | Apply a command to all frames (ignoring errors and empty output).\n\ | |
2956 | Usage: faas COMMAND\n\ | |
2957 | shortcut for 'frame apply all -s COMMAND'")); | |
2958 | ||
f67ffa6a AB |
2959 | |
2960 | add_prefix_cmd ("frame", class_stack, | |
2961 | &frame_cmd.base_command, _("\ | |
2962 | Select and print a stack frame.\n\ | |
2963 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ | |
2964 | A single numerical argument specifies the frame to select."), | |
2965 | &frame_cmd_list, "frame ", 1, &cmdlist); | |
2966 | add_com_alias ("f", "frame", class_stack, 1); | |
2967 | ||
2968 | add_cmd ("address", class_stack, &frame_cmd.address, | |
2969 | _("\ | |
2970 | Select and print a stack frame by stack address\n\ | |
2971 | \n\ | |
2972 | Usage: frame address STACK-ADDRESS"), | |
2973 | &frame_cmd_list); | |
2974 | ||
2975 | add_cmd ("view", class_stack, &frame_cmd.view, | |
2976 | _("\ | |
2977 | View a stack frame that might be outside the current backtrace.\n\ | |
2978 | \n\ | |
2979 | Usage: frame view STACK-ADDRESS\n\ | |
2980 | frame view STACK-ADDRESS PC-ADDRESS"), | |
2981 | &frame_cmd_list); | |
2982 | ||
2983 | cmd = add_cmd ("function", class_stack, &frame_cmd.function, | |
2984 | _("\ | |
2985 | Select and print a stack frame by function name.\n\ | |
2986 | \n\ | |
2987 | Usage: frame function NAME\n\ | |
2988 | \n\ | |
2989 | The innermost frame that visited function NAME is selected."), | |
2990 | &frame_cmd_list); | |
2991 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
2992 | ||
2993 | ||
2994 | add_cmd ("level", class_stack, &frame_cmd.level, | |
2995 | _("\ | |
2996 | Select and print a stack frame by level.\n\ | |
2997 | \n\ | |
2998 | Usage: frame level LEVEL"), | |
2999 | &frame_cmd_list); | |
3000 | ||
3001 | cmd = add_prefix_cmd_suppress_notification ("select-frame", class_stack, | |
3002 | &select_frame_cmd.base_command, _("\ | |
1bedd215 | 3003 | Select a stack frame without printing anything.\n\ |
f67ffa6a AB |
3004 | A single numerical argument specifies the frame to select."), |
3005 | &select_frame_cmd_list, "select-frame ", 1, &cmdlist, | |
3006 | &cli_suppress_notification.user_selected_context); | |
3007 | ||
3008 | add_cmd_suppress_notification ("address", class_stack, | |
3009 | &select_frame_cmd.address, _("\ | |
3010 | Select a stack frame by stack address.\n\ | |
3011 | \n\ | |
3012 | Usage: select-frame address STACK-ADDRESS"), | |
3013 | &select_frame_cmd_list, | |
3014 | &cli_suppress_notification.user_selected_context); | |
3015 | ||
3016 | ||
3017 | add_cmd_suppress_notification ("view", class_stack, | |
3018 | &select_frame_cmd.view, _("\ | |
3019 | Select a stack frame that might be outside the current backtrace.\n\ | |
3020 | \n\ | |
3021 | Usage: select-frame view STACK-ADDRESS\n\ | |
3022 | select-frame view STACK-ADDRESS PC-ADDRESS"), | |
3023 | &select_frame_cmd_list, | |
4034d0ff | 3024 | &cli_suppress_notification.user_selected_context); |
c906108c | 3025 | |
f67ffa6a AB |
3026 | cmd = add_cmd_suppress_notification ("function", class_stack, |
3027 | &select_frame_cmd.function, _("\ | |
3028 | Select a stack frame by function name.\n\ | |
3029 | \n\ | |
3030 | Usage: select-frame function NAME"), | |
3031 | &select_frame_cmd_list, | |
3032 | &cli_suppress_notification.user_selected_context); | |
3033 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3034 | ||
3035 | add_cmd_suppress_notification ("level", class_stack, | |
3036 | &select_frame_cmd.level, _("\ | |
3037 | Select a stack frame by level.\n\ | |
3038 | \n\ | |
3039 | Usage: select-frame level LEVEL"), | |
3040 | &select_frame_cmd_list, | |
3041 | &cli_suppress_notification.user_selected_context); | |
3042 | ||
1bedd215 AC |
3043 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
3044 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
9507b29c TT |
3045 | Usage: backtrace [QUALIFIERS]... [COUNT]\n\ |
3046 | With a negative argument, print outermost -COUNT frames.\n\ | |
3047 | Use of the 'full' qualifier also prints the values of the local variables.\n\ | |
1e611234 | 3048 | Use of the 'no-filters' qualifier prohibits frame filters from executing\n\ |
9507b29c | 3049 | on this backtrace.")); |
c906108c | 3050 | add_com_alias ("bt", "backtrace", class_stack, 0); |
c906108c SS |
3051 | |
3052 | add_com_alias ("where", "backtrace", class_alias, 0); | |
3053 | add_info ("stack", backtrace_command, | |
1bedd215 | 3054 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c | 3055 | add_info_alias ("s", "stack", 1); |
f67ffa6a AB |
3056 | |
3057 | add_prefix_cmd ("frame", class_info, &info_frame_cmd.base_command, | |
3058 | _("All about the selected stack frame.\n\ | |
3059 | With no arguments, displays information about the currently selected stack\n\ | |
3060 | frame. Alternatively a frame specification may be provided (See \"frame\")\n\ | |
3061 | the information is then printed about the specified frame."), | |
3062 | &info_frame_cmd_list, "info frame ", 1, &infolist); | |
c906108c | 3063 | add_info_alias ("f", "frame", 1); |
f67ffa6a AB |
3064 | |
3065 | add_cmd ("address", class_stack, &info_frame_cmd.address, | |
3066 | _("\ | |
3067 | Print information about a stack frame selected by stack address.\n\ | |
3068 | \n\ | |
3069 | Usage: info frame address STACK-ADDRESS"), | |
3070 | &info_frame_cmd_list); | |
3071 | ||
3072 | add_cmd ("view", class_stack, &info_frame_cmd.view, | |
3073 | _("\ | |
3074 | Print information about a stack frame outside the current backtrace.\n\ | |
3075 | \n\ | |
3076 | Usage: info frame view STACK-ADDRESS\n\ | |
3077 | info frame view STACK-ADDRESS PC-ADDRESS"), | |
3078 | &info_frame_cmd_list); | |
3079 | ||
3080 | cmd = add_cmd ("function", class_stack, &info_frame_cmd.function, | |
3081 | _("\ | |
3082 | Print information about a stack frame selected by function name.\n\ | |
3083 | \n\ | |
3084 | Usage: info frame function NAME"), | |
3085 | &info_frame_cmd_list); | |
3086 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3087 | ||
3088 | add_cmd ("level", class_stack, &info_frame_cmd.level, | |
3089 | _("\ | |
3090 | Print information about a stack frame selected by level.\n\ | |
3091 | \n\ | |
3092 | Usage: info frame level LEVEL"), | |
3093 | &info_frame_cmd_list); | |
3094 | ||
11db9430 | 3095 | add_info ("locals", info_locals_command, |
12615cba PW |
3096 | info_print_args_help (_("\ |
3097 | All local variables of current stack frame or those matching REGEXPs.\n\ | |
3098 | Usage: info locals [-q] [-t TYPEREGEXP] [NAMEREGEXP]\n\ | |
3099 | Prints the local variables of the current stack frame.\n"), | |
3100 | _("local variables"))); | |
11db9430 | 3101 | add_info ("args", info_args_command, |
12615cba PW |
3102 | info_print_args_help (_("\ |
3103 | All argument variables of current stack frame or those matching REGEXPs.\n\ | |
3104 | Usage: info args [-q] [-t TYPEREGEXP] [NAMEREGEXP]\n\ | |
3105 | Prints the argument variables of the current stack frame.\n"), | |
3106 | _("argument variables"))); | |
c906108c SS |
3107 | |
3108 | if (dbx_commands) | |
1bedd215 | 3109 | add_com ("func", class_stack, func_command, _("\ |
41827fc3 TT |
3110 | Select the stack frame that contains NAME.\n\ |
3111 | Usage: func NAME")); | |
c906108c | 3112 | |
88408340 JB |
3113 | add_setshow_enum_cmd ("frame-arguments", class_stack, |
3114 | print_frame_arguments_choices, &print_frame_arguments, | |
3115 | _("Set printing of non-scalar frame arguments"), | |
3116 | _("Show printing of non-scalar frame arguments"), | |
3117 | NULL, NULL, NULL, &setprintlist, &showprintlist); | |
3118 | ||
e7045703 DE |
3119 | add_setshow_boolean_cmd ("frame-arguments", no_class, |
3120 | &print_raw_frame_arguments, _("\ | |
3121 | Set whether to print frame arguments in raw form."), _("\ | |
3122 | Show whether to print frame arguments in raw form."), _("\ | |
3123 | If set, frame arguments are printed in raw form, bypassing any\n\ | |
3124 | pretty-printers for that value."), | |
3125 | NULL, NULL, | |
3126 | &setprintrawlist, &showprintrawlist); | |
3127 | ||
30c33a9f HZ |
3128 | add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack, |
3129 | &disassemble_next_line, _("\ | |
3e43a32a MS |
3130 | Set whether to disassemble next source line or insn when execution stops."), |
3131 | _("\ | |
3132 | Show whether to disassemble next source line or insn when execution stops."), | |
3133 | _("\ | |
80a0ea0f EZ |
3134 | If ON, GDB will display disassembly of the next source line, in addition\n\ |
3135 | to displaying the source line itself. If the next source line cannot\n\ | |
3136 | be displayed (e.g., source is unavailable or there's no line info), GDB\n\ | |
3137 | will display disassembly of next instruction instead of showing the\n\ | |
3138 | source line.\n\ | |
3139 | If AUTO, display disassembly of next instruction only if the source line\n\ | |
3140 | cannot be displayed.\n\ | |
3141 | If OFF (which is the default), never display the disassembly of the next\n\ | |
3142 | source line."), | |
30c33a9f HZ |
3143 | NULL, |
3144 | show_disassemble_next_line, | |
3145 | &setlist, &showlist); | |
a362e3d3 | 3146 | disassemble_next_line = AUTO_BOOLEAN_FALSE; |
e18b2753 JK |
3147 | |
3148 | add_setshow_enum_cmd ("entry-values", class_stack, | |
3149 | print_entry_values_choices, &print_entry_values, | |
3150 | _("Set printing of function arguments at function " | |
3151 | "entry"), | |
3152 | _("Show printing of function arguments at function " | |
3153 | "entry"), | |
3154 | _("\ | |
3155 | GDB can sometimes determine the values of function arguments at entry,\n\ | |
3156 | in addition to their current values. This option tells GDB whether\n\ | |
3157 | to print the current value, the value at entry (marked as val@entry),\n\ | |
3158 | or both. Note that one or both of these values may be <optimized out>."), | |
3159 | NULL, NULL, &setprintlist, &showprintlist); | |
c906108c | 3160 | } |