Commit | Line | Data |
---|---|---|
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" |
0d3abd8c | 50 | #include "annotate.h" |
c906108c | 51 | |
ccefe4c4 | 52 | #include "symfile.h" |
6dddc817 | 53 | #include "extension.h" |
76727919 | 54 | #include "observable.h" |
268a13a5 | 55 | #include "gdbsupport/def-vector.h" |
d4c16835 | 56 | #include "cli/cli-option.h" |
e43b10e1 | 57 | #include "cli/cli-style.h" |
ccefe4c4 | 58 | |
2421fe6f | 59 | /* The possible choices of "set print frame-arguments", and the value |
88408340 JB |
60 | of this setting. */ |
61 | ||
d4c16835 PA |
62 | const char print_frame_arguments_all[] = "all"; |
63 | const char print_frame_arguments_scalars[] = "scalars"; | |
64 | const char print_frame_arguments_none[] = "none"; | |
4b5e8d19 | 65 | const char print_frame_arguments_presence[] = "presence"; |
88408340 | 66 | |
d4c16835 PA |
67 | static const char *const print_frame_arguments_choices[] = |
68 | { | |
69 | print_frame_arguments_all, | |
70 | print_frame_arguments_scalars, | |
71 | print_frame_arguments_none, | |
4b5e8d19 | 72 | print_frame_arguments_presence, |
d4c16835 PA |
73 | NULL |
74 | }; | |
e7045703 | 75 | |
4b5e8d19 PW |
76 | /* The possible choices of "set print frame-info", and the value |
77 | of this setting. */ | |
78 | ||
79 | const char print_frame_info_auto[] = "auto"; | |
80 | const char print_frame_info_source_line[] = "source-line"; | |
81 | const char print_frame_info_location[] = "location"; | |
82 | const char print_frame_info_source_and_location[] = "source-and-location"; | |
83 | const char print_frame_info_location_and_address[] = "location-and-address"; | |
84 | const char print_frame_info_short_location[] = "short-location"; | |
85 | ||
86 | static const char *const print_frame_info_choices[] = | |
87 | { | |
88 | print_frame_info_auto, | |
89 | print_frame_info_source_line, | |
90 | print_frame_info_location, | |
91 | print_frame_info_source_and_location, | |
92 | print_frame_info_location_and_address, | |
93 | print_frame_info_short_location, | |
94 | NULL | |
95 | }; | |
96 | ||
97 | /* print_frame_info_print_what[i] maps a choice to the corresponding | |
98 | print_what enum. */ | |
99 | static const gdb::optional<enum print_what> print_frame_info_print_what[] = | |
100 | {{}, /* Empty value for "auto". */ | |
101 | SRC_LINE, LOCATION, SRC_AND_LOC, LOC_AND_ADDRESS, SHORT_LOCATION}; | |
102 | ||
e18b2753 JK |
103 | /* The possible choices of "set print entry-values", and the value |
104 | of this setting. */ | |
105 | ||
106 | const char print_entry_values_no[] = "no"; | |
107 | const char print_entry_values_only[] = "only"; | |
108 | const char print_entry_values_preferred[] = "preferred"; | |
109 | const char print_entry_values_if_needed[] = "if-needed"; | |
110 | const char print_entry_values_both[] = "both"; | |
111 | const char print_entry_values_compact[] = "compact"; | |
112 | const char print_entry_values_default[] = "default"; | |
40478521 | 113 | static const char *const print_entry_values_choices[] = |
e18b2753 JK |
114 | { |
115 | print_entry_values_no, | |
116 | print_entry_values_only, | |
117 | print_entry_values_preferred, | |
118 | print_entry_values_if_needed, | |
119 | print_entry_values_both, | |
120 | print_entry_values_compact, | |
121 | print_entry_values_default, | |
122 | NULL | |
123 | }; | |
d4c16835 PA |
124 | |
125 | /* See frame.h. */ | |
126 | frame_print_options user_frame_print_options; | |
127 | ||
128 | /* Option definitions for some frame-related "set print ..." | |
129 | settings. */ | |
130 | ||
131 | using boolean_option_def | |
132 | = gdb::option::boolean_option_def<frame_print_options>; | |
133 | using enum_option_def | |
134 | = gdb::option::enum_option_def<frame_print_options>; | |
135 | ||
136 | static const gdb::option::option_def frame_print_option_defs[] = { | |
137 | ||
138 | enum_option_def { | |
139 | "entry-values", | |
140 | print_entry_values_choices, | |
141 | [] (frame_print_options *opt) { return &opt->print_entry_values; }, | |
142 | NULL, /* show_cmd_cb */ | |
590042fc PW |
143 | N_("Set printing of function arguments at function entry."), |
144 | N_("Show printing of function arguments at function entry."), | |
d4c16835 PA |
145 | N_("GDB can sometimes determine the values of function arguments at entry,\n\ |
146 | in addition to their current values. This option tells GDB whether\n\ | |
147 | to print the current value, the value at entry (marked as val@entry),\n\ | |
148 | or both. Note that one or both of these values may be <optimized out>."), | |
149 | }, | |
150 | ||
151 | enum_option_def { | |
152 | "frame-arguments", | |
153 | print_frame_arguments_choices, | |
154 | [] (frame_print_options *opt) { return &opt->print_frame_arguments; }, | |
155 | NULL, /* show_cmd_cb */ | |
590042fc PW |
156 | N_("Set printing of non-scalar frame arguments."), |
157 | N_("Show printing of non-scalar frame arguments."), | |
d4c16835 PA |
158 | NULL /* help_doc */ |
159 | }, | |
160 | ||
161 | boolean_option_def { | |
162 | "raw-frame-arguments", | |
163 | [] (frame_print_options *opt) { return &opt->print_raw_frame_arguments; }, | |
164 | NULL, /* show_cmd_cb */ | |
165 | N_("Set whether to print frame arguments in raw form."), | |
166 | N_("Show whether to print frame arguments in raw form."), | |
167 | N_("If set, frame arguments are printed in raw form, bypassing any\n\ | |
168 | pretty-printers for that value.") | |
169 | }, | |
4b5e8d19 PW |
170 | |
171 | enum_option_def { | |
172 | "frame-info", | |
173 | print_frame_info_choices, | |
174 | [] (frame_print_options *opt) { return &opt->print_frame_info; }, | |
175 | NULL, /* show_cmd_cb */ | |
176 | N_("Set printing of frame information."), | |
177 | N_("Show printing of frame information."), | |
178 | NULL /* help_doc */ | |
179 | } | |
180 | ||
d4c16835 PA |
181 | }; |
182 | ||
183 | /* Options for the "backtrace" command. */ | |
184 | ||
185 | struct backtrace_cmd_options | |
186 | { | |
491144b5 CB |
187 | bool full = false; |
188 | bool no_filters = false; | |
189 | bool hide = false; | |
d4c16835 PA |
190 | }; |
191 | ||
192 | using bt_flag_option_def | |
193 | = gdb::option::flag_option_def<backtrace_cmd_options>; | |
194 | ||
195 | static const gdb::option::option_def backtrace_command_option_defs[] = { | |
196 | bt_flag_option_def { | |
197 | "full", | |
198 | [] (backtrace_cmd_options *opt) { return &opt->full; }, | |
199 | N_("Print values of local variables.") | |
200 | }, | |
201 | ||
202 | bt_flag_option_def { | |
203 | "no-filters", | |
204 | [] (backtrace_cmd_options *opt) { return &opt->no_filters; }, | |
205 | N_("Prohibit frame filters from executing on a backtrace."), | |
206 | }, | |
207 | ||
208 | bt_flag_option_def { | |
209 | "hide", | |
210 | [] (backtrace_cmd_options *opt) { return &opt->hide; }, | |
211 | N_("Causes Python frame filter elided frames to not be printed."), | |
212 | }, | |
213 | }; | |
e18b2753 | 214 | |
c378eb4e | 215 | /* Prototypes for local functions. */ |
c906108c | 216 | |
12615cba PW |
217 | static void print_frame_local_vars (struct frame_info *frame, |
218 | bool quiet, | |
219 | const char *regexp, const char *t_regexp, | |
220 | int num_tabs, struct ui_file *stream); | |
c906108c | 221 | |
d4c16835 PA |
222 | static void print_frame (const frame_print_options &opts, |
223 | frame_info *frame, int print_level, | |
033a42c2 | 224 | enum print_what print_what, int print_args, |
c5394b80 JM |
225 | struct symtab_and_line sal); |
226 | ||
1bfeeb0f JL |
227 | static void set_last_displayed_sal (int valid, |
228 | struct program_space *pspace, | |
229 | CORE_ADDR addr, | |
230 | struct symtab *symtab, | |
231 | int line); | |
232 | ||
f67ffa6a AB |
233 | static struct frame_info *find_frame_for_function (const char *); |
234 | static struct frame_info *find_frame_for_address (CORE_ADDR); | |
235 | ||
c906108c SS |
236 | /* Zero means do things normally; we are interacting directly with the |
237 | user. One means print the full filename and linenumber when a | |
238 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
239 | parse. Two means print similar annotations, but in many more | |
240 | cases and in a slightly different syntax. */ | |
241 | ||
242 | int annotation_level = 0; | |
1bfeeb0f JL |
243 | |
244 | /* These variables hold the last symtab and line we displayed to the user. | |
245 | * This is where we insert a breakpoint or a skiplist entry by default. */ | |
246 | static int last_displayed_sal_valid = 0; | |
247 | static struct program_space *last_displayed_pspace = 0; | |
248 | static CORE_ADDR last_displayed_addr = 0; | |
249 | static struct symtab *last_displayed_symtab = 0; | |
250 | static int last_displayed_line = 0; | |
c906108c | 251 | \f |
c5aa993b | 252 | |
4b5e8d19 | 253 | /* See stack.h. */ |
edb3359d | 254 | |
4b5e8d19 | 255 | int |
edb3359d DJ |
256 | frame_show_address (struct frame_info *frame, |
257 | struct symtab_and_line sal) | |
258 | { | |
259 | /* If there is a line number, but no PC, then there is no location | |
260 | information associated with this sal. The only way that should | |
261 | happen is for the call sites of inlined functions (SAL comes from | |
262 | find_frame_sal). Otherwise, we would have some PC range if the | |
263 | SAL came from a line table. */ | |
264 | if (sal.line != 0 && sal.pc == 0 && sal.end == 0) | |
265 | { | |
266 | if (get_next_frame (frame) == NULL) | |
00431a78 | 267 | gdb_assert (inline_skipped_frames (inferior_thread ()) > 0); |
edb3359d DJ |
268 | else |
269 | gdb_assert (get_frame_type (get_next_frame (frame)) == INLINE_FRAME); | |
270 | return 0; | |
271 | } | |
272 | ||
273 | return get_frame_pc (frame) != sal.pc; | |
274 | } | |
275 | ||
4034d0ff AT |
276 | /* See frame.h. */ |
277 | ||
278 | void | |
279 | print_stack_frame_to_uiout (struct ui_out *uiout, struct frame_info *frame, | |
280 | int print_level, enum print_what print_what, | |
281 | int set_current_sal) | |
282 | { | |
67ad9399 | 283 | scoped_restore save_uiout = make_scoped_restore (¤t_uiout, uiout); |
4034d0ff AT |
284 | |
285 | print_stack_frame (frame, print_level, print_what, set_current_sal); | |
4034d0ff AT |
286 | } |
287 | ||
f9acce4a | 288 | /* Show or print a stack frame FRAME briefly. The output is formatted |
d762c46a AC |
289 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
290 | relative level, function name, argument list, and file name and | |
291 | line number. If the frame's PC is not at the beginning of the | |
292 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
293 | |
294 | void | |
033a42c2 | 295 | print_stack_frame (struct frame_info *frame, int print_level, |
08d72866 PA |
296 | enum print_what print_what, |
297 | int set_current_sal) | |
c906108c | 298 | { |
c906108c | 299 | |
85102364 | 300 | /* For mi, always print location and address. */ |
112e8700 | 301 | if (current_uiout->is_mi_like_p ()) |
311b5970 | 302 | print_what = LOC_AND_ADDRESS; |
c906108c | 303 | |
a70b8144 | 304 | try |
311b5970 | 305 | { |
d4c16835 PA |
306 | print_frame_info (user_frame_print_options, |
307 | frame, print_level, print_what, 1 /* print_args */, | |
08d72866 PA |
308 | set_current_sal); |
309 | if (set_current_sal) | |
5166082f | 310 | set_current_sal_from_frame (frame); |
311b5970 | 311 | } |
230d2906 | 312 | catch (const gdb_exception_error &e) |
492d29ea PA |
313 | { |
314 | } | |
311b5970 | 315 | } |
c906108c | 316 | |
033a42c2 MK |
317 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
318 | the offset of the first nameless argument, and NUM is the number of | |
319 | nameless arguments to print. FIRST is nonzero if this is the first | |
320 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
321 | |
322 | static void | |
033a42c2 | 323 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
324 | int first, struct ui_file *stream) |
325 | { | |
e17a4113 UW |
326 | struct gdbarch *gdbarch = get_frame_arch (frame); |
327 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
8d3b0994 AC |
328 | int i; |
329 | CORE_ADDR argsaddr; | |
330 | long arg_value; | |
331 | ||
332 | for (i = 0; i < num; i++) | |
333 | { | |
334 | QUIT; | |
033a42c2 | 335 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
336 | if (!argsaddr) |
337 | return; | |
e17a4113 UW |
338 | arg_value = read_memory_integer (argsaddr + start, |
339 | sizeof (int), byte_order); | |
8d3b0994 AC |
340 | if (!first) |
341 | fprintf_filtered (stream, ", "); | |
342 | fprintf_filtered (stream, "%ld", arg_value); | |
343 | first = 0; | |
344 | start += sizeof (int); | |
345 | } | |
346 | } | |
347 | ||
93d86cef JK |
348 | /* Print single argument of inferior function. ARG must be already |
349 | read in. | |
350 | ||
351 | Errors are printed as if they would be the parameter value. Use zeroed ARG | |
85102364 | 352 | iff it should not be printed according to user settings. */ |
93d86cef JK |
353 | |
354 | static void | |
d4c16835 PA |
355 | print_frame_arg (const frame_print_options &fp_opts, |
356 | const struct frame_arg *arg) | |
93d86cef JK |
357 | { |
358 | struct ui_out *uiout = current_uiout; | |
93d86cef | 359 | |
d7e74731 | 360 | string_file stb; |
93d86cef JK |
361 | |
362 | gdb_assert (!arg->val || !arg->error); | |
e18b2753 JK |
363 | gdb_assert (arg->entry_kind == print_entry_values_no |
364 | || arg->entry_kind == print_entry_values_only | |
112e8700 | 365 | || (!uiout->is_mi_like_p () |
e18b2753 | 366 | && arg->entry_kind == print_entry_values_compact)); |
93d86cef | 367 | |
46b9c129 TT |
368 | annotate_arg_emitter arg_emitter; |
369 | ui_out_emit_tuple tuple_emitter (uiout, NULL); | |
d7e74731 | 370 | fprintf_symbol_filtered (&stb, SYMBOL_PRINT_NAME (arg->sym), |
93d86cef | 371 | SYMBOL_LANGUAGE (arg->sym), DMGL_PARAMS | DMGL_ANSI); |
e18b2753 JK |
372 | if (arg->entry_kind == print_entry_values_compact) |
373 | { | |
374 | /* It is OK to provide invalid MI-like stream as with | |
375 | PRINT_ENTRY_VALUE_COMPACT we never use MI. */ | |
d7e74731 | 376 | stb.puts ("="); |
e18b2753 | 377 | |
d7e74731 | 378 | fprintf_symbol_filtered (&stb, SYMBOL_PRINT_NAME (arg->sym), |
e18b2753 JK |
379 | SYMBOL_LANGUAGE (arg->sym), |
380 | DMGL_PARAMS | DMGL_ANSI); | |
381 | } | |
382 | if (arg->entry_kind == print_entry_values_only | |
383 | || arg->entry_kind == print_entry_values_compact) | |
d7e74731 | 384 | stb.puts ("@entry"); |
e43b10e1 | 385 | uiout->field_stream ("name", stb, variable_name_style.style ()); |
93d86cef | 386 | annotate_arg_name_end (); |
112e8700 | 387 | uiout->text ("="); |
93d86cef | 388 | |
7f6aba03 | 389 | ui_file_style style; |
93d86cef | 390 | if (!arg->val && !arg->error) |
112e8700 | 391 | uiout->text ("..."); |
93d86cef JK |
392 | else |
393 | { | |
394 | if (arg->error) | |
7f6aba03 TT |
395 | { |
396 | stb.printf (_("<error reading variable: %s>"), arg->error.get ()); | |
397 | style = metadata_style.style (); | |
398 | } | |
93d86cef JK |
399 | else |
400 | { | |
a70b8144 | 401 | try |
93d86cef JK |
402 | { |
403 | const struct language_defn *language; | |
d4c16835 | 404 | struct value_print_options vp_opts; |
93d86cef JK |
405 | |
406 | /* Avoid value_print because it will deref ref parameters. We | |
407 | just want to print their addresses. Print ??? for args whose | |
408 | address we do not know. We pass 2 as "recurse" to val_print | |
409 | because our standard indentation here is 4 spaces, and | |
410 | val_print indents 2 for each recurse. */ | |
411 | ||
412 | annotate_arg_value (value_type (arg->val)); | |
413 | ||
414 | /* Use the appropriate language to display our symbol, unless the | |
415 | user forced the language to a specific language. */ | |
416 | if (language_mode == language_mode_auto) | |
417 | language = language_def (SYMBOL_LANGUAGE (arg->sym)); | |
418 | else | |
419 | language = current_language; | |
420 | ||
d4c16835 PA |
421 | get_no_prettyformat_print_options (&vp_opts); |
422 | vp_opts.deref_ref = 1; | |
423 | vp_opts.raw = fp_opts.print_raw_frame_arguments; | |
93d86cef JK |
424 | |
425 | /* True in "summary" mode, false otherwise. */ | |
d4c16835 PA |
426 | vp_opts.summary |
427 | = fp_opts.print_frame_arguments == print_frame_arguments_scalars; | |
93d86cef | 428 | |
d4c16835 | 429 | common_val_print (arg->val, &stb, 2, &vp_opts, language); |
93d86cef | 430 | } |
230d2906 | 431 | catch (const gdb_exception_error &except) |
492d29ea | 432 | { |
3d6e9d23 TT |
433 | stb.printf (_("<error reading variable: %s>"), |
434 | except.what ()); | |
7f6aba03 | 435 | style = metadata_style.style (); |
492d29ea | 436 | } |
93d86cef | 437 | } |
93d86cef JK |
438 | } |
439 | ||
7f6aba03 | 440 | uiout->field_stream ("value", stb, style); |
93d86cef JK |
441 | } |
442 | ||
82a0a75f YQ |
443 | /* Read in inferior function local SYM at FRAME into ARGP. Caller is |
444 | responsible for xfree of ARGP->ERROR. This function never throws an | |
445 | exception. */ | |
446 | ||
447 | void | |
448 | read_frame_local (struct symbol *sym, struct frame_info *frame, | |
449 | struct frame_arg *argp) | |
450 | { | |
492d29ea PA |
451 | argp->sym = sym; |
452 | argp->val = NULL; | |
453 | argp->error = NULL; | |
454 | ||
a70b8144 | 455 | try |
82a0a75f | 456 | { |
63e43d3a | 457 | argp->val = read_var_value (sym, NULL, frame); |
82a0a75f | 458 | } |
230d2906 | 459 | catch (const gdb_exception_error &except) |
492d29ea | 460 | { |
123cd851 | 461 | argp->error.reset (xstrdup (except.what ())); |
492d29ea | 462 | } |
82a0a75f YQ |
463 | } |
464 | ||
123cd851 TT |
465 | /* Read in inferior function parameter SYM at FRAME into ARGP. This |
466 | function never throws an exception. */ | |
93d86cef JK |
467 | |
468 | void | |
d4c16835 PA |
469 | read_frame_arg (const frame_print_options &fp_opts, |
470 | symbol *sym, frame_info *frame, | |
e18b2753 | 471 | struct frame_arg *argp, struct frame_arg *entryargp) |
93d86cef | 472 | { |
e18b2753 JK |
473 | struct value *val = NULL, *entryval = NULL; |
474 | char *val_error = NULL, *entryval_error = NULL; | |
475 | int val_equal = 0; | |
93d86cef | 476 | |
d4c16835 PA |
477 | if (fp_opts.print_entry_values != print_entry_values_only |
478 | && fp_opts.print_entry_values != print_entry_values_preferred) | |
e18b2753 | 479 | { |
a70b8144 | 480 | try |
e18b2753 | 481 | { |
63e43d3a | 482 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 483 | } |
230d2906 | 484 | catch (const gdb_exception_error &except) |
e18b2753 | 485 | { |
3d6e9d23 TT |
486 | val_error = (char *) alloca (except.message->size () + 1); |
487 | strcpy (val_error, except.what ()); | |
e18b2753 JK |
488 | } |
489 | } | |
490 | ||
24d6c2a0 TT |
491 | if (SYMBOL_COMPUTED_OPS (sym) != NULL |
492 | && SYMBOL_COMPUTED_OPS (sym)->read_variable_at_entry != NULL | |
d4c16835 PA |
493 | && fp_opts.print_entry_values != print_entry_values_no |
494 | && (fp_opts.print_entry_values != print_entry_values_if_needed | |
e18b2753 JK |
495 | || !val || value_optimized_out (val))) |
496 | { | |
a70b8144 | 497 | try |
e18b2753 JK |
498 | { |
499 | const struct symbol_computed_ops *ops; | |
500 | ||
501 | ops = SYMBOL_COMPUTED_OPS (sym); | |
502 | entryval = ops->read_variable_at_entry (sym, frame); | |
503 | } | |
230d2906 | 504 | catch (const gdb_exception_error &except) |
e18b2753 | 505 | { |
492d29ea PA |
506 | if (except.error != NO_ENTRY_VALUE_ERROR) |
507 | { | |
3d6e9d23 TT |
508 | entryval_error = (char *) alloca (except.message->size () + 1); |
509 | strcpy (entryval_error, except.what ()); | |
492d29ea | 510 | } |
e18b2753 JK |
511 | } |
512 | ||
492d29ea PA |
513 | if (entryval != NULL && value_optimized_out (entryval)) |
514 | entryval = NULL; | |
e18b2753 | 515 | |
d4c16835 PA |
516 | if (fp_opts.print_entry_values == print_entry_values_compact |
517 | || fp_opts.print_entry_values == print_entry_values_default) | |
e18b2753 JK |
518 | { |
519 | /* For MI do not try to use print_entry_values_compact for ARGP. */ | |
520 | ||
112e8700 | 521 | if (val && entryval && !current_uiout->is_mi_like_p ()) |
e18b2753 | 522 | { |
744a8059 | 523 | struct type *type = value_type (val); |
e18b2753 | 524 | |
9a0dc9e3 PA |
525 | if (value_lazy (val)) |
526 | value_fetch_lazy (val); | |
527 | if (value_lazy (entryval)) | |
528 | value_fetch_lazy (entryval); | |
529 | ||
530 | if (value_contents_eq (val, 0, entryval, 0, TYPE_LENGTH (type))) | |
e18b2753 | 531 | { |
509f0fd9 JK |
532 | /* Initialize it just to avoid a GCC false warning. */ |
533 | struct value *val_deref = NULL, *entryval_deref; | |
a471c594 | 534 | |
216f72a1 | 535 | /* DW_AT_call_value does match with the current |
a471c594 | 536 | value. If it is a reference still try to verify if |
216f72a1 | 537 | dereferenced DW_AT_call_data_value does not differ. */ |
a471c594 | 538 | |
a70b8144 | 539 | try |
a471c594 | 540 | { |
744a8059 | 541 | struct type *type_deref; |
a471c594 JK |
542 | |
543 | val_deref = coerce_ref (val); | |
544 | if (value_lazy (val_deref)) | |
545 | value_fetch_lazy (val_deref); | |
744a8059 | 546 | type_deref = value_type (val_deref); |
a471c594 JK |
547 | |
548 | entryval_deref = coerce_ref (entryval); | |
549 | if (value_lazy (entryval_deref)) | |
550 | value_fetch_lazy (entryval_deref); | |
551 | ||
552 | /* If the reference addresses match but dereferenced | |
553 | content does not match print them. */ | |
554 | if (val != val_deref | |
9a0dc9e3 PA |
555 | && value_contents_eq (val_deref, 0, |
556 | entryval_deref, 0, | |
557 | TYPE_LENGTH (type_deref))) | |
a471c594 JK |
558 | val_equal = 1; |
559 | } | |
230d2906 | 560 | catch (const gdb_exception_error &except) |
492d29ea PA |
561 | { |
562 | /* If the dereferenced content could not be | |
563 | fetched do not display anything. */ | |
564 | if (except.error == NO_ENTRY_VALUE_ERROR) | |
565 | val_equal = 1; | |
566 | else if (except.message != NULL) | |
567 | { | |
3d6e9d23 TT |
568 | entryval_error |
569 | = (char *) alloca (except.message->size () + 1); | |
570 | strcpy (entryval_error, except.what ()); | |
492d29ea PA |
571 | } |
572 | } | |
a471c594 JK |
573 | |
574 | /* Value was not a reference; and its content matches. */ | |
575 | if (val == val_deref) | |
576 | val_equal = 1; | |
a471c594 JK |
577 | |
578 | if (val_equal) | |
579 | entryval = NULL; | |
e18b2753 JK |
580 | } |
581 | } | |
582 | ||
583 | /* Try to remove possibly duplicate error message for ENTRYARGP even | |
584 | in MI mode. */ | |
585 | ||
586 | if (val_error && entryval_error | |
587 | && strcmp (val_error, entryval_error) == 0) | |
588 | { | |
589 | entryval_error = NULL; | |
590 | ||
591 | /* Do not se VAL_EQUAL as the same error message may be shown for | |
592 | the entry value even if no entry values are present in the | |
593 | inferior. */ | |
594 | } | |
595 | } | |
596 | } | |
597 | ||
598 | if (entryval == NULL) | |
93d86cef | 599 | { |
d4c16835 | 600 | if (fp_opts.print_entry_values == print_entry_values_preferred) |
e18b2753 | 601 | { |
492d29ea PA |
602 | gdb_assert (val == NULL); |
603 | ||
a70b8144 | 604 | try |
e18b2753 | 605 | { |
63e43d3a | 606 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 607 | } |
230d2906 | 608 | catch (const gdb_exception_error &except) |
e18b2753 | 609 | { |
3d6e9d23 TT |
610 | val_error = (char *) alloca (except.message->size () + 1); |
611 | strcpy (val_error, except.what ()); | |
e18b2753 JK |
612 | } |
613 | } | |
d4c16835 PA |
614 | if (fp_opts.print_entry_values == print_entry_values_only |
615 | || fp_opts.print_entry_values == print_entry_values_both | |
616 | || (fp_opts.print_entry_values == print_entry_values_preferred | |
e18b2753 | 617 | && (!val || value_optimized_out (val)))) |
1ed8d800 YQ |
618 | { |
619 | entryval = allocate_optimized_out_value (SYMBOL_TYPE (sym)); | |
620 | entryval_error = NULL; | |
621 | } | |
93d86cef | 622 | } |
d4c16835 PA |
623 | if ((fp_opts.print_entry_values == print_entry_values_compact |
624 | || fp_opts.print_entry_values == print_entry_values_if_needed | |
625 | || fp_opts.print_entry_values == print_entry_values_preferred) | |
e18b2753 | 626 | && (!val || value_optimized_out (val)) && entryval != NULL) |
93d86cef | 627 | { |
e18b2753 JK |
628 | val = NULL; |
629 | val_error = NULL; | |
93d86cef JK |
630 | } |
631 | ||
632 | argp->sym = sym; | |
633 | argp->val = val; | |
123cd851 | 634 | argp->error.reset (val_error ? xstrdup (val_error) : NULL); |
e18b2753 JK |
635 | if (!val && !val_error) |
636 | argp->entry_kind = print_entry_values_only; | |
d4c16835 PA |
637 | else if ((fp_opts.print_entry_values == print_entry_values_compact |
638 | || fp_opts.print_entry_values == print_entry_values_default) | |
639 | && val_equal) | |
e18b2753 JK |
640 | { |
641 | argp->entry_kind = print_entry_values_compact; | |
112e8700 | 642 | gdb_assert (!current_uiout->is_mi_like_p ()); |
e18b2753 JK |
643 | } |
644 | else | |
645 | argp->entry_kind = print_entry_values_no; | |
646 | ||
647 | entryargp->sym = sym; | |
648 | entryargp->val = entryval; | |
123cd851 | 649 | entryargp->error.reset (entryval_error ? xstrdup (entryval_error) : NULL); |
e18b2753 JK |
650 | if (!entryval && !entryval_error) |
651 | entryargp->entry_kind = print_entry_values_no; | |
652 | else | |
653 | entryargp->entry_kind = print_entry_values_only; | |
93d86cef JK |
654 | } |
655 | ||
033a42c2 MK |
656 | /* Print the arguments of frame FRAME on STREAM, given the function |
657 | FUNC running in that frame (as a symbol), where NUM is the number | |
658 | of arguments according to the stack frame (or -1 if the number of | |
659 | arguments is unknown). */ | |
8d3b0994 | 660 | |
e3168615 | 661 | /* Note that currently the "number of arguments according to the |
033a42c2 | 662 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 663 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
664 | |
665 | static void | |
d4c16835 PA |
666 | print_frame_args (const frame_print_options &fp_opts, |
667 | struct symbol *func, struct frame_info *frame, | |
033a42c2 | 668 | int num, struct ui_file *stream) |
8d3b0994 | 669 | { |
79a45e25 | 670 | struct ui_out *uiout = current_uiout; |
8d3b0994 | 671 | int first = 1; |
8d3b0994 | 672 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
673 | at the highest offset, or -1 if we haven't come to a stack |
674 | argument yet. */ | |
8d3b0994 | 675 | long highest_offset = -1; |
8d3b0994 AC |
676 | /* Number of ints of arguments that we have printed so far. */ |
677 | int args_printed = 0; | |
4b5e8d19 PW |
678 | /* True if we should print arg names. If false, we only indicate |
679 | the presence of arguments by printing ellipsis. */ | |
680 | bool print_names | |
681 | = fp_opts.print_frame_arguments != print_frame_arguments_presence; | |
a6bac58e | 682 | /* True if we should print arguments, false otherwise. */ |
d4c16835 | 683 | bool print_args |
4b5e8d19 PW |
684 | = (print_names |
685 | && fp_opts.print_frame_arguments != print_frame_arguments_none); | |
8d3b0994 | 686 | |
8d3b0994 AC |
687 | if (func) |
688 | { | |
3977b71f | 689 | const struct block *b = SYMBOL_BLOCK_VALUE (func); |
8157b174 | 690 | struct block_iterator iter; |
033a42c2 | 691 | struct symbol *sym; |
8d3b0994 | 692 | |
de4f826b | 693 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 | 694 | { |
e18b2753 | 695 | struct frame_arg arg, entryarg; |
93d86cef | 696 | |
8d3b0994 AC |
697 | QUIT; |
698 | ||
699 | /* Keep track of the highest stack argument offset seen, and | |
700 | skip over any kinds of symbols we don't care about. */ | |
701 | ||
2a2d4dc3 AS |
702 | if (!SYMBOL_IS_ARGUMENT (sym)) |
703 | continue; | |
704 | ||
4b5e8d19 PW |
705 | if (!print_names) |
706 | { | |
707 | uiout->text ("..."); | |
708 | first = 0; | |
709 | break; | |
710 | } | |
711 | ||
8d3b0994 AC |
712 | switch (SYMBOL_CLASS (sym)) |
713 | { | |
714 | case LOC_ARG: | |
715 | case LOC_REF_ARG: | |
716 | { | |
717 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 718 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
719 | |
720 | /* Compute address of next argument by adding the size of | |
721 | this argument and rounding to an int boundary. */ | |
722 | current_offset = | |
723 | ((current_offset + arg_size + sizeof (int) - 1) | |
724 | & ~(sizeof (int) - 1)); | |
725 | ||
033a42c2 MK |
726 | /* If this is the highest offset seen yet, set |
727 | highest_offset. */ | |
8d3b0994 AC |
728 | if (highest_offset == -1 |
729 | || (current_offset > highest_offset)) | |
730 | highest_offset = current_offset; | |
731 | ||
033a42c2 MK |
732 | /* Add the number of ints we're about to print to |
733 | args_printed. */ | |
8d3b0994 AC |
734 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
735 | } | |
736 | ||
033a42c2 MK |
737 | /* We care about types of symbols, but don't need to |
738 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 739 | case LOC_REGISTER: |
8d3b0994 | 740 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
741 | case LOC_COMPUTED: |
742 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 743 | default: |
2a2d4dc3 | 744 | break; |
8d3b0994 AC |
745 | } |
746 | ||
747 | /* We have to look up the symbol because arguments can have | |
748 | two entries (one a parameter, one a local) and the one we | |
749 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 750 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
751 | small structure and gcc2 when the argument type is float |
752 | and it is passed as a double and converted to float by | |
753 | the prologue (in the latter case the type of the LOC_ARG | |
754 | symbol is double and the type of the LOC_LOCAL symbol is | |
755 | float). */ | |
033a42c2 MK |
756 | /* But if the parameter name is null, don't try it. Null |
757 | parameter names occur on the RS/6000, for traceback | |
758 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 759 | |
3567439c | 760 | if (*SYMBOL_LINKAGE_NAME (sym)) |
8d3b0994 AC |
761 | { |
762 | struct symbol *nsym; | |
433759f7 | 763 | |
de63c46b PA |
764 | nsym = lookup_symbol_search_name (SYMBOL_SEARCH_NAME (sym), |
765 | b, VAR_DOMAIN).symbol; | |
55765a25 | 766 | gdb_assert (nsym != NULL); |
2a2d4dc3 AS |
767 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER |
768 | && !SYMBOL_IS_ARGUMENT (nsym)) | |
8d3b0994 | 769 | { |
033a42c2 MK |
770 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
771 | that it was passed on the stack and loaded into a | |
772 | register, or passed in a register and stored in a | |
773 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
774 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
775 | |
776 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
777 | |
778 | (1) Because find_saved_registers may be slow for | |
779 | remote debugging. | |
780 | ||
781 | (2) Because registers are often re-used and stack | |
782 | slots rarely (never?) are. Therefore using | |
783 | the stack slot is much less likely to print | |
784 | garbage. | |
8d3b0994 AC |
785 | |
786 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
787 | |
788 | (1) So that the backtrace prints the same value | |
789 | as "print foo". I see no compelling reason | |
790 | why this needs to be the case; having the | |
791 | backtrace print the value which was passed | |
792 | in, and "print foo" print the value as | |
793 | modified within the called function, makes | |
794 | perfect sense to me. | |
795 | ||
796 | Additional note: It might be nice if "info args" | |
797 | displayed both values. | |
798 | ||
799 | One more note: There is a case with SPARC | |
800 | structure passing where we need to use the | |
801 | LOC_REGISTER, but this is dealt with by creating | |
802 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
803 | |
804 | /* Leave sym (the LOC_ARG) alone. */ | |
805 | ; | |
806 | } | |
807 | else | |
808 | sym = nsym; | |
809 | } | |
810 | ||
811 | /* Print the current arg. */ | |
812 | if (!first) | |
112e8700 SM |
813 | uiout->text (", "); |
814 | uiout->wrap_hint (" "); | |
8d3b0994 | 815 | |
93d86cef JK |
816 | if (!print_args) |
817 | { | |
93d86cef | 818 | arg.sym = sym; |
e18b2753 | 819 | arg.entry_kind = print_entry_values_no; |
e18b2753 JK |
820 | entryarg.sym = sym; |
821 | entryarg.entry_kind = print_entry_values_no; | |
93d86cef JK |
822 | } |
823 | else | |
d4c16835 | 824 | read_frame_arg (fp_opts, sym, frame, &arg, &entryarg); |
8d3b0994 | 825 | |
e18b2753 | 826 | if (arg.entry_kind != print_entry_values_only) |
d4c16835 | 827 | print_frame_arg (fp_opts, &arg); |
e18b2753 JK |
828 | |
829 | if (entryarg.entry_kind != print_entry_values_no) | |
830 | { | |
831 | if (arg.entry_kind != print_entry_values_only) | |
832 | { | |
112e8700 SM |
833 | uiout->text (", "); |
834 | uiout->wrap_hint (" "); | |
e18b2753 JK |
835 | } |
836 | ||
d4c16835 | 837 | print_frame_arg (fp_opts, &entryarg); |
e18b2753 | 838 | } |
8d3b0994 | 839 | |
8d3b0994 AC |
840 | first = 0; |
841 | } | |
842 | } | |
843 | ||
844 | /* Don't print nameless args in situations where we don't know | |
845 | enough about the stack to find them. */ | |
846 | if (num != -1) | |
847 | { | |
848 | long start; | |
849 | ||
850 | if (highest_offset == -1) | |
7500260a | 851 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
852 | else |
853 | start = highest_offset; | |
854 | ||
4b5e8d19 PW |
855 | if (!print_names && !first && num > 0) |
856 | uiout->text ("..."); | |
857 | else | |
858 | print_frame_nameless_args (frame, start, num - args_printed, | |
859 | first, stream); | |
8d3b0994 | 860 | } |
8d3b0994 AC |
861 | } |
862 | ||
033a42c2 MK |
863 | /* Set the current source and line to the location given by frame |
864 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
865 | line is in the center of the next 'list'. */ | |
c789492a | 866 | |
7abfe014 | 867 | void |
5166082f | 868 | set_current_sal_from_frame (struct frame_info *frame) |
c789492a | 869 | { |
51abb421 | 870 | symtab_and_line sal = find_frame_sal (frame); |
5166082f | 871 | if (sal.symtab != NULL) |
51abb421 | 872 | set_current_source_symtab_and_line (sal); |
c789492a FL |
873 | } |
874 | ||
30c33a9f HZ |
875 | /* If ON, GDB will display disassembly of the next source line when |
876 | execution of the program being debugged stops. | |
481df73e HZ |
877 | If AUTO (which is the default), or there's no line info to determine |
878 | the source line of the next instruction, display disassembly of next | |
879 | instruction instead. */ | |
30c33a9f HZ |
880 | |
881 | static enum auto_boolean disassemble_next_line; | |
882 | ||
883 | static void | |
884 | show_disassemble_next_line (struct ui_file *file, int from_tty, | |
885 | struct cmd_list_element *c, | |
886 | const char *value) | |
887 | { | |
3e43a32a MS |
888 | fprintf_filtered (file, |
889 | _("Debugger's willingness to use " | |
890 | "disassemble-next-line is %s.\n"), | |
30c33a9f HZ |
891 | value); |
892 | } | |
893 | ||
30c33a9f HZ |
894 | /* Use TRY_CATCH to catch the exception from the gdb_disassembly |
895 | because it will be broken by filter sometime. */ | |
896 | ||
897 | static void | |
13274fc3 UW |
898 | do_gdb_disassembly (struct gdbarch *gdbarch, |
899 | int how_many, CORE_ADDR low, CORE_ADDR high) | |
30c33a9f | 900 | { |
30c33a9f | 901 | |
a70b8144 | 902 | try |
30c33a9f | 903 | { |
7a8eb317 | 904 | gdb_disassembly (gdbarch, current_uiout, |
79a45e25 PA |
905 | DISASSEMBLY_RAW_INSN, how_many, |
906 | low, high); | |
30c33a9f | 907 | } |
230d2906 | 908 | catch (const gdb_exception_error &exception) |
b1d288d3 JK |
909 | { |
910 | /* If an exception was thrown while doing the disassembly, print | |
911 | the error message, to give the user a clue of what happened. */ | |
912 | exception_print (gdb_stderr, exception); | |
913 | } | |
30c33a9f HZ |
914 | } |
915 | ||
4b5e8d19 PW |
916 | /* Converts the PRINT_FRAME_INFO choice to an optional enum print_what. |
917 | Value not present indicates to the caller to use default values | |
918 | specific to the command being executed. */ | |
919 | ||
920 | static gdb::optional<enum print_what> | |
921 | print_frame_info_to_print_what (const char *print_frame_info) | |
922 | { | |
923 | for (int i = 0; print_frame_info_choices[i] != NULL; i++) | |
924 | if (print_frame_info == print_frame_info_choices[i]) | |
925 | return print_frame_info_print_what[i]; | |
926 | ||
927 | internal_error (__FILE__, __LINE__, | |
928 | "Unexpected print frame-info value `%s'.", | |
929 | print_frame_info); | |
930 | } | |
931 | ||
aa7ca1bb AH |
932 | /* Print the PC from FRAME, plus any flags, to UIOUT. */ |
933 | ||
934 | static void | |
935 | print_pc (struct ui_out *uiout, struct gdbarch *gdbarch, frame_info *frame, | |
936 | CORE_ADDR pc) | |
937 | { | |
938 | uiout->field_core_addr ("addr", gdbarch, pc); | |
939 | ||
940 | std::string flags = gdbarch_get_pc_address_flags (gdbarch, frame, pc); | |
941 | if (!flags.empty ()) | |
942 | { | |
943 | uiout->text (" ["); | |
944 | uiout->field_string ("addr_flags", flags); | |
945 | uiout->text ("]"); | |
946 | } | |
947 | } | |
948 | ||
4b5e8d19 PW |
949 | /* See stack.h. */ |
950 | ||
951 | void | |
952 | get_user_print_what_frame_info (gdb::optional<enum print_what> *what) | |
953 | { | |
954 | *what | |
955 | = print_frame_info_to_print_what | |
956 | (user_frame_print_options.print_frame_info); | |
957 | } | |
958 | ||
033a42c2 | 959 | /* Print information about frame FRAME. The output is format according |
4b5e8d19 PW |
960 | to PRINT_LEVEL and PRINT_WHAT and PRINT_ARGS. For the meaning of |
961 | PRINT_WHAT, see enum print_what comments in frame.h. | |
405feb71 | 962 | Note that PRINT_WHAT is overridden if FP_OPTS.print_frame_info |
4b5e8d19 | 963 | != print_frame_info_auto. |
033a42c2 MK |
964 | |
965 | Used in "where" output, and to emit breakpoint or step | |
966 | messages. */ | |
c906108c | 967 | |
7789c6f5 | 968 | void |
d4c16835 PA |
969 | print_frame_info (const frame_print_options &fp_opts, |
970 | frame_info *frame, int print_level, | |
08d72866 PA |
971 | enum print_what print_what, int print_args, |
972 | int set_current_sal) | |
c906108c | 973 | { |
5af949e3 | 974 | struct gdbarch *gdbarch = get_frame_arch (frame); |
c5394b80 JM |
975 | int source_print; |
976 | int location_print; | |
79a45e25 | 977 | struct ui_out *uiout = current_uiout; |
c906108c | 978 | |
4b5e8d19 PW |
979 | if (!current_uiout->is_mi_like_p () |
980 | && fp_opts.print_frame_info != print_frame_info_auto) | |
981 | { | |
982 | /* Use the specific frame information desired by the user. */ | |
983 | print_what = *print_frame_info_to_print_what (fp_opts.print_frame_info); | |
984 | } | |
985 | ||
033a42c2 | 986 | if (get_frame_type (frame) == DUMMY_FRAME |
36f15f55 UW |
987 | || get_frame_type (frame) == SIGTRAMP_FRAME |
988 | || get_frame_type (frame) == ARCH_FRAME) | |
c906108c | 989 | { |
2e783024 | 990 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); |
c906108c | 991 | |
033a42c2 | 992 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
5af949e3 | 993 | gdbarch, get_frame_pc (frame)); |
6a3fe0a4 | 994 | |
c906108c | 995 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 996 | to list for this frame. */ |
0faf0076 | 997 | if (print_level) |
52c6a6ac | 998 | { |
112e8700 | 999 | uiout->text ("#"); |
381befee TT |
1000 | uiout->field_fmt_signed (2, ui_left, "level", |
1001 | frame_relative_level (frame)); | |
52c6a6ac | 1002 | } |
112e8700 | 1003 | if (uiout->is_mi_like_p ()) |
52c6a6ac | 1004 | { |
075559bc | 1005 | annotate_frame_address (); |
aa7ca1bb | 1006 | print_pc (uiout, gdbarch, frame, get_frame_pc (frame)); |
075559bc | 1007 | annotate_frame_address_end (); |
52c6a6ac | 1008 | } |
6a3fe0a4 | 1009 | |
033a42c2 | 1010 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
1011 | { |
1012 | annotate_function_call (); | |
cbe56571 | 1013 | uiout->field_string ("func", "<function called from gdb>", |
7f6aba03 | 1014 | metadata_style.style ()); |
075559bc | 1015 | } |
033a42c2 | 1016 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
1017 | { |
1018 | annotate_signal_handler_caller (); | |
cbe56571 | 1019 | uiout->field_string ("func", "<signal handler called>", |
7f6aba03 | 1020 | metadata_style.style ()); |
075559bc | 1021 | } |
36f15f55 UW |
1022 | else if (get_frame_type (frame) == ARCH_FRAME) |
1023 | { | |
cbe56571 | 1024 | uiout->field_string ("func", "<cross-architecture call>", |
7f6aba03 | 1025 | metadata_style.style ()); |
36f15f55 | 1026 | } |
112e8700 | 1027 | uiout->text ("\n"); |
c906108c | 1028 | annotate_frame_end (); |
075559bc | 1029 | |
433e77fa HZ |
1030 | /* If disassemble-next-line is set to auto or on output the next |
1031 | instruction. */ | |
1032 | if (disassemble_next_line == AUTO_BOOLEAN_AUTO | |
1033 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1034 | do_gdb_disassembly (get_frame_arch (frame), 1, | |
1035 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
1036 | ||
c906108c SS |
1037 | return; |
1038 | } | |
1039 | ||
033a42c2 MK |
1040 | /* If FRAME is not the innermost frame, that normally means that |
1041 | FRAME->pc points to *after* the call instruction, and we want to | |
1042 | get the line containing the call, never the next line. But if | |
1043 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
1044 | next frame was not entered as the result of a call, and we want | |
1045 | to get the line containing FRAME->pc. */ | |
51abb421 | 1046 | symtab_and_line sal = find_frame_sal (frame); |
c906108c | 1047 | |
4b5e8d19 PW |
1048 | location_print = (print_what == LOCATION |
1049 | || print_what == SRC_AND_LOC | |
0faf0076 | 1050 | || print_what == LOC_AND_ADDRESS |
4b5e8d19 | 1051 | || print_what == SHORT_LOCATION); |
c5394b80 | 1052 | if (location_print || !sal.symtab) |
d4c16835 | 1053 | print_frame (fp_opts, frame, print_level, print_what, print_args, sal); |
c5394b80 | 1054 | |
0faf0076 | 1055 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 1056 | |
30c33a9f HZ |
1057 | /* If disassemble-next-line is set to auto or on and doesn't have |
1058 | the line debug messages for $pc, output the next instruction. */ | |
1059 | if ((disassemble_next_line == AUTO_BOOLEAN_AUTO | |
1060 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1061 | && source_print && !sal.symtab) | |
13274fc3 UW |
1062 | do_gdb_disassembly (get_frame_arch (frame), 1, |
1063 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
30c33a9f | 1064 | |
c5394b80 JM |
1065 | if (source_print && sal.symtab) |
1066 | { | |
0faf0076 | 1067 | int mid_statement = ((print_what == SRC_LINE) |
edb3359d | 1068 | && frame_show_address (frame, sal)); |
ec8e2b6d AB |
1069 | annotate_source_line (sal.symtab, sal.line, mid_statement, |
1070 | get_frame_pc (frame)); | |
c5394b80 | 1071 | |
ec8e2b6d AB |
1072 | if (deprecated_print_frame_info_listing_hook) |
1073 | deprecated_print_frame_info_listing_hook (sal.symtab, sal.line, | |
1074 | sal.line + 1, 0); | |
1075 | else | |
c5394b80 | 1076 | { |
ec8e2b6d AB |
1077 | struct value_print_options opts; |
1078 | ||
1079 | get_user_print_options (&opts); | |
1080 | /* We used to do this earlier, but that is clearly | |
1081 | wrong. This function is used by many different | |
1082 | parts of gdb, including normal_stop in infrun.c, | |
1083 | which uses this to print out the current PC | |
1084 | when we stepi/nexti into the middle of a source | |
1085 | line. Only the command line really wants this | |
1086 | behavior. Other UIs probably would like the | |
1087 | ability to decide for themselves if it is desired. */ | |
1088 | if (opts.addressprint && mid_statement) | |
c5394b80 | 1089 | { |
aa7ca1bb | 1090 | print_pc (uiout, gdbarch, frame, get_frame_pc (frame)); |
ec8e2b6d | 1091 | uiout->text ("\t"); |
c5394b80 | 1092 | } |
30c33a9f | 1093 | |
ec8e2b6d AB |
1094 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); |
1095 | } | |
c5394b80 JM |
1096 | } |
1097 | ||
ec8e2b6d AB |
1098 | /* If disassemble-next-line is set to on and there is line debug |
1099 | messages, output assembly codes for next line. */ | |
1100 | if (disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1101 | do_gdb_disassembly (get_frame_arch (frame), -1, sal.pc, sal.end); | |
1102 | ||
08d72866 | 1103 | if (set_current_sal) |
e3eebbd7 PA |
1104 | { |
1105 | CORE_ADDR pc; | |
1106 | ||
1107 | if (get_frame_pc_if_available (frame, &pc)) | |
1bfeeb0f | 1108 | set_last_displayed_sal (1, sal.pspace, pc, sal.symtab, sal.line); |
e3eebbd7 | 1109 | else |
1bfeeb0f | 1110 | set_last_displayed_sal (0, 0, 0, 0, 0); |
e3eebbd7 | 1111 | } |
c5394b80 JM |
1112 | |
1113 | annotate_frame_end (); | |
1114 | ||
1115 | gdb_flush (gdb_stdout); | |
1116 | } | |
1117 | ||
1bfeeb0f JL |
1118 | /* Remember the last symtab and line we displayed, which we use e.g. |
1119 | * as the place to put a breakpoint when the `break' command is | |
1120 | * invoked with no arguments. */ | |
1121 | ||
1122 | static void | |
1123 | set_last_displayed_sal (int valid, struct program_space *pspace, | |
1124 | CORE_ADDR addr, struct symtab *symtab, | |
1125 | int line) | |
1126 | { | |
1127 | last_displayed_sal_valid = valid; | |
1128 | last_displayed_pspace = pspace; | |
1129 | last_displayed_addr = addr; | |
1130 | last_displayed_symtab = symtab; | |
1131 | last_displayed_line = line; | |
4cb6da1c AR |
1132 | if (valid && pspace == NULL) |
1133 | { | |
4cb6da1c | 1134 | clear_last_displayed_sal (); |
e36930bb PA |
1135 | internal_error (__FILE__, __LINE__, |
1136 | _("Trying to set NULL pspace.")); | |
4cb6da1c | 1137 | } |
1bfeeb0f JL |
1138 | } |
1139 | ||
1140 | /* Forget the last sal we displayed. */ | |
1141 | ||
1142 | void | |
1143 | clear_last_displayed_sal (void) | |
1144 | { | |
1145 | last_displayed_sal_valid = 0; | |
1146 | last_displayed_pspace = 0; | |
1147 | last_displayed_addr = 0; | |
1148 | last_displayed_symtab = 0; | |
1149 | last_displayed_line = 0; | |
1150 | } | |
1151 | ||
1152 | /* Is our record of the last sal we displayed valid? If not, | |
1153 | * the get_last_displayed_* functions will return NULL or 0, as | |
1154 | * appropriate. */ | |
1155 | ||
1156 | int | |
1157 | last_displayed_sal_is_valid (void) | |
1158 | { | |
1159 | return last_displayed_sal_valid; | |
1160 | } | |
1161 | ||
1162 | /* Get the pspace of the last sal we displayed, if it's valid. */ | |
1163 | ||
1164 | struct program_space * | |
1165 | get_last_displayed_pspace (void) | |
1166 | { | |
1167 | if (last_displayed_sal_valid) | |
1168 | return last_displayed_pspace; | |
1169 | return 0; | |
1170 | } | |
1171 | ||
1172 | /* Get the address of the last sal we displayed, if it's valid. */ | |
1173 | ||
1174 | CORE_ADDR | |
1175 | get_last_displayed_addr (void) | |
1176 | { | |
1177 | if (last_displayed_sal_valid) | |
1178 | return last_displayed_addr; | |
1179 | return 0; | |
1180 | } | |
1181 | ||
1182 | /* Get the symtab of the last sal we displayed, if it's valid. */ | |
1183 | ||
1184 | struct symtab* | |
1185 | get_last_displayed_symtab (void) | |
1186 | { | |
1187 | if (last_displayed_sal_valid) | |
1188 | return last_displayed_symtab; | |
1189 | return 0; | |
1190 | } | |
1191 | ||
1192 | /* Get the line of the last sal we displayed, if it's valid. */ | |
1193 | ||
1194 | int | |
1195 | get_last_displayed_line (void) | |
1196 | { | |
1197 | if (last_displayed_sal_valid) | |
1198 | return last_displayed_line; | |
1199 | return 0; | |
1200 | } | |
1201 | ||
1202 | /* Get the last sal we displayed, if it's valid. */ | |
1203 | ||
51abb421 PA |
1204 | symtab_and_line |
1205 | get_last_displayed_sal () | |
1bfeeb0f | 1206 | { |
51abb421 PA |
1207 | symtab_and_line sal; |
1208 | ||
1bfeeb0f JL |
1209 | if (last_displayed_sal_valid) |
1210 | { | |
51abb421 PA |
1211 | sal.pspace = last_displayed_pspace; |
1212 | sal.pc = last_displayed_addr; | |
1213 | sal.symtab = last_displayed_symtab; | |
1214 | sal.line = last_displayed_line; | |
1bfeeb0f | 1215 | } |
51abb421 PA |
1216 | |
1217 | return sal; | |
1bfeeb0f JL |
1218 | } |
1219 | ||
1220 | ||
c6dc63a1 TT |
1221 | /* Attempt to obtain the name, FUNLANG and optionally FUNCP of the function |
1222 | corresponding to FRAME. */ | |
e9e07ba6 | 1223 | |
c6dc63a1 TT |
1224 | gdb::unique_xmalloc_ptr<char> |
1225 | find_frame_funname (struct frame_info *frame, enum language *funlang, | |
1226 | struct symbol **funcp) | |
c5394b80 JM |
1227 | { |
1228 | struct symbol *func; | |
c6dc63a1 | 1229 | gdb::unique_xmalloc_ptr<char> funname; |
8b93c638 | 1230 | |
f8f6f20b | 1231 | *funlang = language_unknown; |
e9e07ba6 JK |
1232 | if (funcp) |
1233 | *funcp = NULL; | |
c5394b80 | 1234 | |
edb3359d | 1235 | func = get_frame_function (frame); |
c906108c SS |
1236 | if (func) |
1237 | { | |
567238c9 | 1238 | const char *print_name = SYMBOL_PRINT_NAME (func); |
033a42c2 | 1239 | |
567238c9 KB |
1240 | *funlang = SYMBOL_LANGUAGE (func); |
1241 | if (funcp) | |
1242 | *funcp = func; | |
1243 | if (*funlang == language_cplus) | |
c906108c | 1244 | { |
567238c9 KB |
1245 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
1246 | to display the demangled name that we already have | |
1247 | stored in the symbol table, but we stored a version | |
1248 | with DMGL_PARAMS turned on, and here we don't want to | |
1249 | display parameters. So remove the parameters. */ | |
1250 | funname = cp_remove_params (print_name); | |
c906108c | 1251 | } |
d10153cf | 1252 | |
567238c9 KB |
1253 | /* If we didn't hit the C++ case above, set *funname |
1254 | here. */ | |
1255 | if (funname == NULL) | |
1256 | funname.reset (xstrdup (print_name)); | |
c906108c SS |
1257 | } |
1258 | else | |
1259 | { | |
7cbd4a93 | 1260 | struct bound_minimal_symbol msymbol; |
e3eebbd7 | 1261 | CORE_ADDR pc; |
033a42c2 | 1262 | |
e3eebbd7 | 1263 | if (!get_frame_address_in_block_if_available (frame, &pc)) |
c6dc63a1 | 1264 | return funname; |
e3eebbd7 PA |
1265 | |
1266 | msymbol = lookup_minimal_symbol_by_pc (pc); | |
7cbd4a93 | 1267 | if (msymbol.minsym != NULL) |
c906108c | 1268 | { |
c6dc63a1 | 1269 | funname.reset (xstrdup (MSYMBOL_PRINT_NAME (msymbol.minsym))); |
efd66ac6 | 1270 | *funlang = MSYMBOL_LANGUAGE (msymbol.minsym); |
c906108c SS |
1271 | } |
1272 | } | |
c6dc63a1 TT |
1273 | |
1274 | return funname; | |
f8f6f20b TJB |
1275 | } |
1276 | ||
1277 | static void | |
d4c16835 PA |
1278 | print_frame (const frame_print_options &fp_opts, |
1279 | frame_info *frame, int print_level, | |
f8f6f20b TJB |
1280 | enum print_what print_what, int print_args, |
1281 | struct symtab_and_line sal) | |
1282 | { | |
5af949e3 | 1283 | struct gdbarch *gdbarch = get_frame_arch (frame); |
79a45e25 | 1284 | struct ui_out *uiout = current_uiout; |
f8f6f20b | 1285 | enum language funlang = language_unknown; |
f8f6f20b | 1286 | struct value_print_options opts; |
e9e07ba6 | 1287 | struct symbol *func; |
e3eebbd7 PA |
1288 | CORE_ADDR pc = 0; |
1289 | int pc_p; | |
1290 | ||
1291 | pc_p = get_frame_pc_if_available (frame, &pc); | |
f8f6f20b | 1292 | |
c6dc63a1 TT |
1293 | gdb::unique_xmalloc_ptr<char> funname |
1294 | = find_frame_funname (frame, &funlang, &func); | |
c906108c | 1295 | |
033a42c2 | 1296 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
e3eebbd7 | 1297 | gdbarch, pc); |
c5394b80 | 1298 | |
76f9c9cf TT |
1299 | { |
1300 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); | |
c5394b80 | 1301 | |
76f9c9cf | 1302 | if (print_level) |
c5394b80 | 1303 | { |
76f9c9cf | 1304 | uiout->text ("#"); |
381befee TT |
1305 | uiout->field_fmt_signed (2, ui_left, "level", |
1306 | frame_relative_level (frame)); | |
c5394b80 | 1307 | } |
76f9c9cf TT |
1308 | get_user_print_options (&opts); |
1309 | if (opts.addressprint) | |
1310 | if (!sal.symtab | |
1311 | || frame_show_address (frame, sal) | |
1312 | || print_what == LOC_AND_ADDRESS) | |
311b5970 | 1313 | { |
76f9c9cf TT |
1314 | annotate_frame_address (); |
1315 | if (pc_p) | |
aa7ca1bb | 1316 | print_pc (uiout, gdbarch, frame, pc); |
76f9c9cf | 1317 | else |
35fb8261 | 1318 | uiout->field_string ("addr", "<unavailable>", |
7f6aba03 | 1319 | metadata_style.style ()); |
76f9c9cf TT |
1320 | annotate_frame_address_end (); |
1321 | uiout->text (" in "); | |
311b5970 | 1322 | } |
76f9c9cf TT |
1323 | annotate_frame_function_name (); |
1324 | ||
1325 | string_file stb; | |
c6dc63a1 | 1326 | fprintf_symbol_filtered (&stb, funname ? funname.get () : "??", |
76f9c9cf | 1327 | funlang, DMGL_ANSI); |
e43b10e1 | 1328 | uiout->field_stream ("func", stb, function_name_style.style ()); |
76f9c9cf TT |
1329 | uiout->wrap_hint (" "); |
1330 | annotate_frame_args (); | |
cbe56571 | 1331 | |
76f9c9cf TT |
1332 | uiout->text (" ("); |
1333 | if (print_args) | |
10f489e5 | 1334 | { |
76f9c9cf TT |
1335 | int numargs; |
1336 | ||
1337 | if (gdbarch_frame_num_args_p (gdbarch)) | |
10f489e5 | 1338 | { |
76f9c9cf TT |
1339 | numargs = gdbarch_frame_num_args (gdbarch, frame); |
1340 | gdb_assert (numargs >= 0); | |
10f489e5 | 1341 | } |
76f9c9cf TT |
1342 | else |
1343 | numargs = -1; | |
1344 | ||
1345 | { | |
1346 | ui_out_emit_list list_emitter (uiout, "args"); | |
a70b8144 | 1347 | try |
76f9c9cf | 1348 | { |
d4c16835 | 1349 | print_frame_args (fp_opts, func, frame, numargs, gdb_stdout); |
76f9c9cf | 1350 | } |
230d2906 | 1351 | catch (const gdb_exception_error &e) |
76f9c9cf TT |
1352 | { |
1353 | } | |
10f489e5 | 1354 | |
76f9c9cf TT |
1355 | /* FIXME: ARGS must be a list. If one argument is a string it |
1356 | will have " that will not be properly escaped. */ | |
1357 | } | |
1358 | QUIT; | |
10f489e5 | 1359 | } |
76f9c9cf | 1360 | uiout->text (")"); |
4b5e8d19 | 1361 | if (print_what != SHORT_LOCATION && sal.symtab) |
76f9c9cf TT |
1362 | { |
1363 | const char *filename_display; | |
1b56eb55 | 1364 | |
76f9c9cf TT |
1365 | filename_display = symtab_to_filename_for_display (sal.symtab); |
1366 | annotate_frame_source_begin (); | |
1367 | uiout->wrap_hint (" "); | |
1368 | uiout->text (" at "); | |
1369 | annotate_frame_source_file (); | |
e43b10e1 TT |
1370 | uiout->field_string ("file", filename_display, |
1371 | file_name_style.style ()); | |
76f9c9cf TT |
1372 | if (uiout->is_mi_like_p ()) |
1373 | { | |
1374 | const char *fullname = symtab_to_fullname (sal.symtab); | |
433759f7 | 1375 | |
76f9c9cf TT |
1376 | uiout->field_string ("fullname", fullname); |
1377 | } | |
1378 | annotate_frame_source_file_end (); | |
1379 | uiout->text (":"); | |
1380 | annotate_frame_source_line (); | |
381befee | 1381 | uiout->field_signed ("line", sal.line); |
76f9c9cf TT |
1382 | annotate_frame_source_end (); |
1383 | } | |
c906108c | 1384 | |
4b5e8d19 PW |
1385 | if (print_what != SHORT_LOCATION |
1386 | && pc_p && (funname == NULL || sal.symtab == NULL)) | |
76f9c9cf TT |
1387 | { |
1388 | char *lib = solib_name_from_address (get_frame_program_space (frame), | |
1389 | get_frame_pc (frame)); | |
4d1eb6b4 | 1390 | |
76f9c9cf TT |
1391 | if (lib) |
1392 | { | |
1393 | annotate_frame_where (); | |
1394 | uiout->wrap_hint (" "); | |
1395 | uiout->text (" from "); | |
9d636d67 | 1396 | uiout->field_string ("from", lib, file_name_style.style ()); |
76f9c9cf TT |
1397 | } |
1398 | } | |
6d52907e JV |
1399 | if (uiout->is_mi_like_p ()) |
1400 | uiout->field_string ("arch", | |
1401 | (gdbarch_bfd_arch_info (gdbarch))->printable_name); | |
76f9c9cf | 1402 | } |
e514a9d6 | 1403 | |
112e8700 | 1404 | uiout->text ("\n"); |
c906108c SS |
1405 | } |
1406 | \f | |
c5aa993b | 1407 | |
f67ffa6a AB |
1408 | /* Completion function for "frame function", "info frame function", and |
1409 | "select-frame function" commands. */ | |
c906108c | 1410 | |
f67ffa6a AB |
1411 | void |
1412 | frame_selection_by_function_completer (struct cmd_list_element *ignore, | |
1413 | completion_tracker &tracker, | |
1414 | const char *text, const char *word) | |
c906108c | 1415 | { |
f67ffa6a AB |
1416 | /* This is used to complete function names within a stack. It would be |
1417 | nice if we only offered functions that were actually in the stack. | |
1418 | However, this would mean unwinding the stack to completion, which | |
1419 | could take too long, or on a corrupted stack, possibly not end. | |
1420 | Instead, we offer all symbol names as a safer choice. */ | |
1421 | collect_symbol_completion_matches (tracker, | |
1422 | complete_symbol_mode::EXPRESSION, | |
1423 | symbol_name_match_type::EXPRESSION, | |
1424 | text, word); | |
1c8831c5 AC |
1425 | } |
1426 | ||
f67ffa6a AB |
1427 | /* Core of all the "info frame" sub-commands. Print information about a |
1428 | frame FI. If SELECTED_FRAME_P is true then the user didn't provide a | |
1429 | frame specification, they just entered 'info frame'. If the user did | |
1430 | provide a frame specification (for example 'info frame 0', 'info frame | |
1431 | level 1') then SELECTED_FRAME_P will be false. */ | |
c906108c SS |
1432 | |
1433 | static void | |
f67ffa6a | 1434 | info_frame_command_core (struct frame_info *fi, bool selected_frame_p) |
c906108c | 1435 | { |
c906108c SS |
1436 | struct symbol *func; |
1437 | struct symtab *s; | |
1438 | struct frame_info *calling_frame_info; | |
167e4384 | 1439 | int numregs; |
0d5cff50 | 1440 | const char *funname = 0; |
c906108c | 1441 | enum language funlang = language_unknown; |
82de1e5b | 1442 | const char *pc_regname; |
7500260a | 1443 | struct gdbarch *gdbarch; |
008f8f2e PA |
1444 | CORE_ADDR frame_pc; |
1445 | int frame_pc_p; | |
e5e6f788 YQ |
1446 | /* Initialize it to avoid "may be used uninitialized" warning. */ |
1447 | CORE_ADDR caller_pc = 0; | |
492d29ea | 1448 | int caller_pc_p = 0; |
c906108c | 1449 | |
12368003 | 1450 | gdbarch = get_frame_arch (fi); |
c906108c | 1451 | |
82de1e5b AC |
1452 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
1453 | is not a good name. */ | |
12368003 | 1454 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1455 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
1456 | easily not match that of the internal value returned by |
1457 | get_frame_pc(). */ | |
12368003 | 1458 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 1459 | else |
3e8c568d | 1460 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
1461 | architectures will often have a hardware register called "pc", |
1462 | and that register's value, again, can easily not match | |
1463 | get_frame_pc(). */ | |
1464 | pc_regname = "pc"; | |
1465 | ||
008f8f2e | 1466 | frame_pc_p = get_frame_pc_if_available (fi, &frame_pc); |
c906108c | 1467 | func = get_frame_function (fi); |
51abb421 | 1468 | symtab_and_line sal = find_frame_sal (fi); |
008f8f2e | 1469 | s = sal.symtab; |
2003f3d8 | 1470 | gdb::unique_xmalloc_ptr<char> func_only; |
c906108c SS |
1471 | if (func) |
1472 | { | |
3567439c | 1473 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b JM |
1474 | funlang = SYMBOL_LANGUAGE (func); |
1475 | if (funlang == language_cplus) | |
1476 | { | |
3567439c DJ |
1477 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
1478 | to display the demangled name that we already have | |
1479 | stored in the symbol table, but we stored a version | |
1480 | with DMGL_PARAMS turned on, and here we don't want to | |
1481 | display parameters. So remove the parameters. */ | |
109483d9 | 1482 | func_only = cp_remove_params (funname); |
433759f7 | 1483 | |
3567439c | 1484 | if (func_only) |
2003f3d8 | 1485 | funname = func_only.get (); |
c5aa993b | 1486 | } |
c906108c | 1487 | } |
008f8f2e | 1488 | else if (frame_pc_p) |
c906108c | 1489 | { |
7cbd4a93 | 1490 | struct bound_minimal_symbol msymbol; |
033a42c2 | 1491 | |
008f8f2e | 1492 | msymbol = lookup_minimal_symbol_by_pc (frame_pc); |
7cbd4a93 | 1493 | if (msymbol.minsym != NULL) |
c906108c | 1494 | { |
efd66ac6 TT |
1495 | funname = MSYMBOL_PRINT_NAME (msymbol.minsym); |
1496 | funlang = MSYMBOL_LANGUAGE (msymbol.minsym); | |
c906108c SS |
1497 | } |
1498 | } | |
1499 | calling_frame_info = get_prev_frame (fi); | |
1500 | ||
1c8831c5 | 1501 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 1502 | { |
a3f17187 | 1503 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 1504 | frame_relative_level (fi)); |
c906108c SS |
1505 | } |
1506 | else | |
1507 | { | |
a3f17187 | 1508 | printf_filtered (_("Stack frame at ")); |
c906108c | 1509 | } |
5af949e3 | 1510 | fputs_filtered (paddress (gdbarch, get_frame_base (fi)), gdb_stdout); |
9c833c82 | 1511 | printf_filtered (":\n"); |
82de1e5b | 1512 | printf_filtered (" %s = ", pc_regname); |
008f8f2e PA |
1513 | if (frame_pc_p) |
1514 | fputs_filtered (paddress (gdbarch, get_frame_pc (fi)), gdb_stdout); | |
1515 | else | |
7f6aba03 | 1516 | fputs_styled ("<unavailable>", metadata_style.style (), gdb_stdout); |
c906108c SS |
1517 | |
1518 | wrap_here (" "); | |
1519 | if (funname) | |
1520 | { | |
1521 | printf_filtered (" in "); | |
1522 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
1523 | DMGL_ANSI | DMGL_PARAMS); | |
1524 | } | |
1525 | wrap_here (" "); | |
1526 | if (sal.symtab) | |
9d636d67 TT |
1527 | printf_filtered |
1528 | (" (%ps:%d)", | |
1529 | styled_string (file_name_style.style (), | |
1530 | symtab_to_filename_for_display (sal.symtab)), | |
1531 | sal.line); | |
c906108c SS |
1532 | puts_filtered ("; "); |
1533 | wrap_here (" "); | |
782d47df PA |
1534 | printf_filtered ("saved %s = ", pc_regname); |
1535 | ||
a038fa3e | 1536 | if (!frame_id_p (frame_unwind_caller_id (fi))) |
c620c3e4 | 1537 | val_print_not_saved (gdb_stdout); |
a038fa3e | 1538 | else |
782d47df | 1539 | { |
a70b8144 | 1540 | try |
782d47df | 1541 | { |
a038fa3e MM |
1542 | caller_pc = frame_unwind_caller_pc (fi); |
1543 | caller_pc_p = 1; | |
782d47df | 1544 | } |
230d2906 | 1545 | catch (const gdb_exception_error &ex) |
a038fa3e MM |
1546 | { |
1547 | switch (ex.error) | |
1548 | { | |
1549 | case NOT_AVAILABLE_ERROR: | |
1550 | val_print_unavailable (gdb_stdout); | |
1551 | break; | |
1552 | case OPTIMIZED_OUT_ERROR: | |
1553 | val_print_not_saved (gdb_stdout); | |
1554 | break; | |
1555 | default: | |
7f6aba03 TT |
1556 | fprintf_styled (gdb_stdout, metadata_style.style (), |
1557 | _("<error: %s>"), | |
1558 | ex.what ()); | |
a038fa3e MM |
1559 | break; |
1560 | } | |
1561 | } | |
782d47df | 1562 | } |
492d29ea PA |
1563 | |
1564 | if (caller_pc_p) | |
782d47df | 1565 | fputs_filtered (paddress (gdbarch, caller_pc), gdb_stdout); |
c906108c SS |
1566 | printf_filtered ("\n"); |
1567 | ||
55feb689 DJ |
1568 | if (calling_frame_info == NULL) |
1569 | { | |
1570 | enum unwind_stop_reason reason; | |
1571 | ||
1572 | reason = get_frame_unwind_stop_reason (fi); | |
1573 | if (reason != UNWIND_NO_REASON) | |
1574 | printf_filtered (_(" Outermost frame: %s\n"), | |
53e8a631 | 1575 | frame_stop_reason_string (fi)); |
55feb689 | 1576 | } |
111c6489 JK |
1577 | else if (get_frame_type (fi) == TAILCALL_FRAME) |
1578 | puts_filtered (" tail call frame"); | |
edb3359d DJ |
1579 | else if (get_frame_type (fi) == INLINE_FRAME) |
1580 | printf_filtered (" inlined into frame %d", | |
1581 | frame_relative_level (get_prev_frame (fi))); | |
1582 | else | |
c906108c SS |
1583 | { |
1584 | printf_filtered (" called by frame at "); | |
5af949e3 | 1585 | fputs_filtered (paddress (gdbarch, get_frame_base (calling_frame_info)), |
ed49a04f | 1586 | gdb_stdout); |
c906108c | 1587 | } |
75e3c1f9 | 1588 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
1589 | puts_filtered (","); |
1590 | wrap_here (" "); | |
75e3c1f9 | 1591 | if (get_next_frame (fi)) |
c906108c SS |
1592 | { |
1593 | printf_filtered (" caller of frame at "); | |
5af949e3 | 1594 | fputs_filtered (paddress (gdbarch, get_frame_base (get_next_frame (fi))), |
ed49a04f | 1595 | gdb_stdout); |
c906108c | 1596 | } |
75e3c1f9 | 1597 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1598 | puts_filtered ("\n"); |
55feb689 | 1599 | |
c906108c | 1600 | if (s) |
1058bca7 AC |
1601 | printf_filtered (" source language %s.\n", |
1602 | language_str (s->language)); | |
c906108c | 1603 | |
c906108c SS |
1604 | { |
1605 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1606 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1607 | /* Number of args for this frame, or -1 if unknown. */ |
1608 | int numargs; | |
1609 | ||
1610 | if (arg_list == 0) | |
1611 | printf_filtered (" Arglist at unknown address.\n"); | |
1612 | else | |
1613 | { | |
1614 | printf_filtered (" Arglist at "); | |
5af949e3 | 1615 | fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout); |
c906108c SS |
1616 | printf_filtered (","); |
1617 | ||
7500260a | 1618 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1619 | { |
1620 | numargs = -1; | |
1621 | puts_filtered (" args: "); | |
1622 | } | |
c906108c | 1623 | else |
983a287a | 1624 | { |
7500260a | 1625 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1626 | gdb_assert (numargs >= 0); |
1627 | if (numargs == 0) | |
1628 | puts_filtered (" no args."); | |
1629 | else if (numargs == 1) | |
1630 | puts_filtered (" 1 arg: "); | |
1631 | else | |
1632 | printf_filtered (" %d args: ", numargs); | |
1633 | } | |
d4c16835 PA |
1634 | print_frame_args (user_frame_print_options, |
1635 | func, fi, numargs, gdb_stdout); | |
c906108c SS |
1636 | puts_filtered ("\n"); |
1637 | } | |
1638 | } | |
1639 | { | |
1640 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1641 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1642 | |
1643 | if (arg_list == 0) | |
1644 | printf_filtered (" Locals at unknown address,"); | |
1645 | else | |
1646 | { | |
1647 | printf_filtered (" Locals at "); | |
5af949e3 | 1648 | fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout); |
c906108c SS |
1649 | printf_filtered (","); |
1650 | } | |
1651 | } | |
1652 | ||
4f460812 AC |
1653 | /* Print as much information as possible on the location of all the |
1654 | registers. */ | |
1655 | { | |
4f460812 AC |
1656 | int count; |
1657 | int i; | |
1658 | int need_nl = 1; | |
b0e4b369 | 1659 | int sp_regnum = gdbarch_sp_regnum (gdbarch); |
4f460812 AC |
1660 | |
1661 | /* The sp is special; what's displayed isn't the save address, but | |
1662 | the value of the previous frame's sp. This is a legacy thing, | |
1663 | at one stage the frame cached the previous frame's SP instead | |
1664 | of its address, hence it was easiest to just display the cached | |
1665 | value. */ | |
b0e4b369 | 1666 | if (sp_regnum >= 0) |
4f460812 | 1667 | { |
b0e4b369 AH |
1668 | struct value *value = frame_unwind_register_value (fi, sp_regnum); |
1669 | gdb_assert (value != NULL); | |
1670 | ||
1671 | if (!value_optimized_out (value) && value_entirely_available (value)) | |
4f460812 | 1672 | { |
b0e4b369 AH |
1673 | if (VALUE_LVAL (value) == not_lval) |
1674 | { | |
1675 | CORE_ADDR sp; | |
1676 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1677 | int sp_size = register_size (gdbarch, sp_regnum); | |
1678 | ||
1679 | sp = extract_unsigned_integer (value_contents_all (value), | |
1680 | sp_size, byte_order); | |
1681 | ||
1682 | printf_filtered (" Previous frame's sp is "); | |
1683 | fputs_filtered (paddress (gdbarch, sp), gdb_stdout); | |
1684 | printf_filtered ("\n"); | |
1685 | } | |
1686 | else if (VALUE_LVAL (value) == lval_memory) | |
1687 | { | |
1688 | printf_filtered (" Previous frame's sp at "); | |
1689 | fputs_filtered (paddress (gdbarch, value_address (value)), | |
1690 | gdb_stdout); | |
1691 | printf_filtered ("\n"); | |
1692 | } | |
1693 | else if (VALUE_LVAL (value) == lval_register) | |
1694 | { | |
1695 | printf_filtered (" Previous frame's sp in %s\n", | |
1696 | gdbarch_register_name (gdbarch, | |
1697 | VALUE_REGNUM (value))); | |
1698 | } | |
1699 | ||
1700 | release_value (value); | |
4f460812 AC |
1701 | need_nl = 0; |
1702 | } | |
1703 | /* else keep quiet. */ | |
1704 | } | |
1705 | ||
1706 | count = 0; | |
f6efe3f8 | 1707 | numregs = gdbarch_num_cooked_regs (gdbarch); |
4f460812 | 1708 | for (i = 0; i < numregs; i++) |
b0e4b369 | 1709 | if (i != sp_regnum |
7500260a | 1710 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4f460812 | 1711 | { |
b0e4b369 AH |
1712 | enum lval_type lval; |
1713 | int optimized; | |
1714 | int unavailable; | |
1715 | CORE_ADDR addr; | |
1716 | int realnum; | |
1717 | ||
4f460812 AC |
1718 | /* Find out the location of the saved register without |
1719 | fetching the corresponding value. */ | |
0fdb4f18 PA |
1720 | frame_register_unwind (fi, i, &optimized, &unavailable, |
1721 | &lval, &addr, &realnum, NULL); | |
4f460812 AC |
1722 | /* For moment, only display registers that were saved on the |
1723 | stack. */ | |
0fdb4f18 | 1724 | if (!optimized && !unavailable && lval == lval_memory) |
4f460812 AC |
1725 | { |
1726 | if (count == 0) | |
1727 | puts_filtered (" Saved registers:\n "); | |
1728 | else | |
1729 | puts_filtered (","); | |
1730 | wrap_here (" "); | |
c9f4d572 | 1731 | printf_filtered (" %s at ", |
7500260a | 1732 | gdbarch_register_name (gdbarch, i)); |
5af949e3 | 1733 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
4f460812 AC |
1734 | count++; |
1735 | } | |
1736 | } | |
1737 | if (count || need_nl) | |
c906108c | 1738 | puts_filtered ("\n"); |
4f460812 | 1739 | } |
c906108c SS |
1740 | } |
1741 | ||
6a70eb7d PW |
1742 | /* Return the innermost frame at level LEVEL. */ |
1743 | ||
1744 | static struct frame_info * | |
1745 | leading_innermost_frame (int level) | |
1746 | { | |
1747 | struct frame_info *leading; | |
1748 | ||
1749 | leading = get_current_frame (); | |
1750 | ||
1751 | gdb_assert (level >= 0); | |
1752 | ||
1753 | while (leading != nullptr && level) | |
1754 | { | |
1755 | QUIT; | |
1756 | leading = get_prev_frame (leading); | |
1757 | level--; | |
1758 | } | |
1759 | ||
1760 | return leading; | |
1761 | } | |
1762 | ||
1763 | /* Return the starting frame needed to handle COUNT outermost frames. */ | |
1764 | ||
1765 | static struct frame_info * | |
1766 | trailing_outermost_frame (int count) | |
1767 | { | |
1768 | struct frame_info *current; | |
1769 | struct frame_info *trailing; | |
1770 | ||
1771 | trailing = get_current_frame (); | |
1772 | ||
1773 | gdb_assert (count > 0); | |
1774 | ||
1775 | current = trailing; | |
1776 | while (current != nullptr && count--) | |
1777 | { | |
1778 | QUIT; | |
1779 | current = get_prev_frame (current); | |
1780 | } | |
1781 | ||
1782 | /* Will stop when CURRENT reaches the top of the stack. | |
1783 | TRAILING will be COUNT below it. */ | |
1784 | while (current != nullptr) | |
1785 | { | |
1786 | QUIT; | |
1787 | trailing = get_prev_frame (trailing); | |
1788 | current = get_prev_frame (current); | |
1789 | } | |
1790 | ||
1791 | return trailing; | |
1792 | } | |
1793 | ||
f67ffa6a AB |
1794 | /* The core of all the "select-frame" sub-commands. Just wraps a call to |
1795 | SELECT_FRAME. */ | |
1796 | ||
1797 | static void | |
1798 | select_frame_command_core (struct frame_info *fi, bool ignored) | |
1799 | { | |
1800 | struct frame_info *prev_frame = get_selected_frame_if_set (); | |
1801 | select_frame (fi); | |
1802 | if (get_selected_frame_if_set () != prev_frame) | |
1803 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); | |
1804 | } | |
1805 | ||
1806 | /* See stack.h. */ | |
1807 | ||
1808 | void | |
1809 | select_frame_for_mi (struct frame_info *fi) | |
1810 | { | |
e2eb806a | 1811 | select_frame_command_core (fi, false /* Ignored. */); |
f67ffa6a AB |
1812 | } |
1813 | ||
1814 | /* The core of all the "frame" sub-commands. Select frame FI, and if this | |
1815 | means we change frame send out a change notification (otherwise, just | |
1816 | reprint the current frame summary). */ | |
1817 | ||
1818 | static void | |
1819 | frame_command_core (struct frame_info *fi, bool ignored) | |
1820 | { | |
1821 | struct frame_info *prev_frame = get_selected_frame_if_set (); | |
1822 | ||
1823 | select_frame (fi); | |
1824 | if (get_selected_frame_if_set () != prev_frame) | |
1825 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); | |
1826 | else | |
1827 | print_selected_thread_frame (current_uiout, USER_SELECTED_FRAME); | |
1828 | } | |
1829 | ||
1830 | /* The three commands 'frame', 'select-frame', and 'info frame' all have a | |
1831 | common set of sub-commands that allow a specific frame to be selected. | |
1832 | All of the sub-command functions are static methods within this class | |
1833 | template which is then instantiated below. The template parameter is a | |
1834 | callback used to implement the functionality of the base command | |
1835 | ('frame', 'select-frame', or 'info frame'). | |
1836 | ||
1837 | In the template parameter FI is the frame being selected. The | |
1838 | SELECTED_FRAME_P flag is true if the frame being selected was done by | |
1839 | default, which happens when the user uses the base command with no | |
1840 | arguments. For example the commands 'info frame', 'select-frame', | |
1841 | 'frame' will all cause SELECTED_FRAME_P to be true. In all other cases | |
1842 | SELECTED_FRAME_P is false. */ | |
1843 | ||
1844 | template <void (*FPTR) (struct frame_info *fi, bool selected_frame_p)> | |
1845 | class frame_command_helper | |
1846 | { | |
1847 | public: | |
1848 | ||
1849 | /* The "frame level" family of commands. The ARG is an integer that is | |
1850 | the frame's level in the stack. */ | |
1851 | static void | |
1852 | level (const char *arg, int from_tty) | |
1853 | { | |
1854 | int level = value_as_long (parse_and_eval (arg)); | |
1855 | struct frame_info *fid | |
1856 | = find_relative_frame (get_current_frame (), &level); | |
1857 | if (level != 0) | |
1858 | error (_("No frame at level %s."), arg); | |
1859 | FPTR (fid, false); | |
1860 | } | |
1861 | ||
1862 | /* The "frame address" family of commands. ARG is a stack-pointer | |
1863 | address for an existing frame. This command does not allow new | |
1864 | frames to be created. */ | |
1865 | ||
1866 | static void | |
1867 | address (const char *arg, int from_tty) | |
1868 | { | |
1869 | CORE_ADDR addr = value_as_address (parse_and_eval (arg)); | |
1870 | struct frame_info *fid = find_frame_for_address (addr); | |
1871 | if (fid == NULL) | |
1872 | error (_("No frame at address %s."), arg); | |
1873 | FPTR (fid, false); | |
1874 | } | |
1875 | ||
1876 | /* The "frame view" family of commands. ARG is one or two addresses and | |
1877 | is used to view a frame that might be outside the current backtrace. | |
1878 | The addresses are stack-pointer address, and (optional) pc-address. */ | |
1879 | ||
1880 | static void | |
1881 | view (const char *args, int from_tty) | |
1882 | { | |
1883 | struct frame_info *fid; | |
1884 | ||
1885 | if (args == NULL) | |
1886 | error (_("Missing address argument to view a frame")); | |
1887 | ||
1888 | gdb_argv argv (args); | |
1889 | ||
1890 | if (argv.count () == 2) | |
1891 | { | |
1892 | CORE_ADDR addr[2]; | |
1893 | ||
1894 | addr [0] = value_as_address (parse_and_eval (argv[0])); | |
1895 | addr [1] = value_as_address (parse_and_eval (argv[1])); | |
1896 | fid = create_new_frame (addr[0], addr[1]); | |
1897 | } | |
1898 | else | |
1899 | { | |
1900 | CORE_ADDR addr = value_as_address (parse_and_eval (argv[0])); | |
1901 | fid = create_new_frame (addr, false); | |
1902 | } | |
1903 | FPTR (fid, false); | |
1904 | } | |
1905 | ||
1906 | /* The "frame function" family of commands. ARG is the name of a | |
1907 | function within the stack, the first function (searching from frame | |
1908 | 0) with that name will be selected. */ | |
1909 | ||
1910 | static void | |
1911 | function (const char *arg, int from_tty) | |
1912 | { | |
1913 | if (arg == NULL) | |
1914 | error (_("Missing function name argument")); | |
1915 | struct frame_info *fid = find_frame_for_function (arg); | |
1916 | if (fid == NULL) | |
1917 | error (_("No frame for function \"%s\"."), arg); | |
1918 | FPTR (fid, false); | |
1919 | } | |
1920 | ||
1921 | /* The "frame" base command, that is, when no sub-command is specified. | |
1922 | If one argument is provided then we assume that this is a frame's | |
1923 | level as historically, this was the supported command syntax that was | |
1924 | used most often. | |
1925 | ||
1926 | If no argument is provided, then the current frame is selected. */ | |
1927 | ||
1928 | static void | |
1929 | base_command (const char *arg, int from_tty) | |
1930 | { | |
1931 | if (arg == NULL) | |
1932 | FPTR (get_selected_frame (_("No stack.")), true); | |
1933 | else | |
1934 | level (arg, from_tty); | |
1935 | } | |
1936 | }; | |
1937 | ||
1938 | /* Instantiate three FRAME_COMMAND_HELPER instances to implement the | |
1939 | sub-commands for 'info frame', 'frame', and 'select-frame' commands. */ | |
1940 | ||
1941 | static frame_command_helper <info_frame_command_core> info_frame_cmd; | |
1942 | static frame_command_helper <frame_command_core> frame_cmd; | |
1943 | static frame_command_helper <select_frame_command_core> select_frame_cmd; | |
1944 | ||
033a42c2 MK |
1945 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1946 | frames. */ | |
c906108c SS |
1947 | |
1948 | static void | |
d4c16835 PA |
1949 | backtrace_command_1 (const frame_print_options &fp_opts, |
1950 | const backtrace_cmd_options &bt_opts, | |
1951 | const char *count_exp, int from_tty) | |
1952 | ||
c906108c SS |
1953 | { |
1954 | struct frame_info *fi; | |
52f0bd74 | 1955 | int count; |
fb7eb8b5 | 1956 | int py_start = 0, py_end = 0; |
6dddc817 | 1957 | enum ext_lang_bt_status result = EXT_LANG_BT_ERROR; |
c906108c SS |
1958 | |
1959 | if (!target_has_stack) | |
8a3fe4f8 | 1960 | error (_("No stack.")); |
c906108c | 1961 | |
c906108c SS |
1962 | if (count_exp) |
1963 | { | |
bb518678 | 1964 | count = parse_and_eval_long (count_exp); |
c906108c | 1965 | if (count < 0) |
fb7eb8b5 | 1966 | py_start = count; |
1e611234 PM |
1967 | else |
1968 | { | |
1969 | py_start = 0; | |
6893c19a TT |
1970 | /* The argument to apply_ext_lang_frame_filter is the number |
1971 | of the final frame to print, and frames start at 0. */ | |
1972 | py_end = count - 1; | |
1e611234 | 1973 | } |
c906108c SS |
1974 | } |
1975 | else | |
1e611234 PM |
1976 | { |
1977 | py_end = -1; | |
1978 | count = -1; | |
1979 | } | |
c906108c | 1980 | |
d4c16835 PA |
1981 | frame_filter_flags flags = 0; |
1982 | ||
1983 | if (bt_opts.full) | |
1984 | flags |= PRINT_LOCALS; | |
1985 | if (bt_opts.hide) | |
1986 | flags |= PRINT_HIDE; | |
1987 | ||
1988 | if (!bt_opts.no_filters) | |
c906108c | 1989 | { |
6dddc817 | 1990 | enum ext_lang_frame_args arg_type; |
c906108c | 1991 | |
1cf7e640 | 1992 | flags |= PRINT_LEVEL | PRINT_FRAME_INFO | PRINT_ARGS; |
6893c19a TT |
1993 | if (from_tty) |
1994 | flags |= PRINT_MORE_FRAMES; | |
1e611234 | 1995 | |
d4c16835 | 1996 | if (fp_opts.print_frame_arguments == print_frame_arguments_scalars) |
1e611234 | 1997 | arg_type = CLI_SCALAR_VALUES; |
d4c16835 | 1998 | else if (fp_opts.print_frame_arguments == print_frame_arguments_all) |
1e611234 | 1999 | arg_type = CLI_ALL_VALUES; |
4b5e8d19 PW |
2000 | else if (fp_opts.print_frame_arguments == print_frame_arguments_presence) |
2001 | arg_type = CLI_PRESENCE; | |
2002 | else if (fp_opts.print_frame_arguments == print_frame_arguments_none) | |
1e611234 | 2003 | arg_type = NO_VALUES; |
4b5e8d19 PW |
2004 | else |
2005 | gdb_assert (0); | |
1e611234 | 2006 | |
6dddc817 DE |
2007 | result = apply_ext_lang_frame_filter (get_current_frame (), flags, |
2008 | arg_type, current_uiout, | |
2009 | py_start, py_end); | |
1e611234 | 2010 | } |
6dddc817 | 2011 | |
1e611234 | 2012 | /* Run the inbuilt backtrace if there are no filters registered, or |
d4c16835 PA |
2013 | "-no-filters" has been specified from the command. */ |
2014 | if (bt_opts.no_filters || result == EXT_LANG_BT_NO_FILTERS) | |
1e611234 | 2015 | { |
fb7eb8b5 TT |
2016 | struct frame_info *trailing; |
2017 | ||
2018 | /* The following code must do two things. First, it must set the | |
2019 | variable TRAILING to the frame from which we should start | |
2020 | printing. Second, it must set the variable count to the number | |
2021 | of frames which we should print, or -1 if all of them. */ | |
fb7eb8b5 TT |
2022 | |
2023 | if (count_exp != NULL && count < 0) | |
2024 | { | |
6a70eb7d | 2025 | trailing = trailing_outermost_frame (-count); |
fb7eb8b5 TT |
2026 | count = -1; |
2027 | } | |
6a70eb7d PW |
2028 | else |
2029 | trailing = get_current_frame (); | |
fb7eb8b5 | 2030 | |
59f66be3 | 2031 | for (fi = trailing; fi && count--; fi = get_prev_frame (fi)) |
1e611234 PM |
2032 | { |
2033 | QUIT; | |
2034 | ||
2035 | /* Don't use print_stack_frame; if an error() occurs it probably | |
2036 | means further attempts to backtrace would fail (on the other | |
2037 | hand, perhaps the code does or could be fixed to make sure | |
2038 | the frame->prev field gets set to NULL in that case). */ | |
2039 | ||
d4c16835 | 2040 | print_frame_info (fp_opts, fi, 1, LOCATION, 1, 0); |
1cf7e640 | 2041 | if ((flags & PRINT_LOCALS) != 0) |
d0548fa2 PM |
2042 | { |
2043 | struct frame_id frame_id = get_frame_id (fi); | |
8f043999 | 2044 | |
12615cba | 2045 | print_frame_local_vars (fi, false, NULL, NULL, 1, gdb_stdout); |
8f043999 | 2046 | |
d0548fa2 PM |
2047 | /* print_frame_local_vars invalidates FI. */ |
2048 | fi = frame_find_by_id (frame_id); | |
2049 | if (fi == NULL) | |
2050 | { | |
2051 | trailing = NULL; | |
2052 | warning (_("Unable to restore previously selected frame.")); | |
2053 | break; | |
2054 | } | |
8f043999 | 2055 | } |
55feb689 | 2056 | |
1e611234 PM |
2057 | /* Save the last frame to check for error conditions. */ |
2058 | trailing = fi; | |
2059 | } | |
c906108c | 2060 | |
1e611234 PM |
2061 | /* If we've stopped before the end, mention that. */ |
2062 | if (fi && from_tty) | |
2063 | printf_filtered (_("(More stack frames follow...)\n")); | |
55feb689 | 2064 | |
1e611234 PM |
2065 | /* If we've run out of frames, and the reason appears to be an error |
2066 | condition, print it. */ | |
2067 | if (fi == NULL && trailing != NULL) | |
2068 | { | |
2069 | enum unwind_stop_reason reason; | |
55feb689 | 2070 | |
1e611234 PM |
2071 | reason = get_frame_unwind_stop_reason (trailing); |
2072 | if (reason >= UNWIND_FIRST_ERROR) | |
2073 | printf_filtered (_("Backtrace stopped: %s\n"), | |
53e8a631 | 2074 | frame_stop_reason_string (trailing)); |
1e611234 | 2075 | } |
55feb689 | 2076 | } |
c906108c SS |
2077 | } |
2078 | ||
d4c16835 PA |
2079 | /* Create an option_def_group array grouping all the "backtrace" |
2080 | options, with FP_OPTS, BT_CMD_OPT, SET_BT_OPTS as contexts. */ | |
2081 | ||
2082 | static inline std::array<gdb::option::option_def_group, 3> | |
2083 | make_backtrace_options_def_group (frame_print_options *fp_opts, | |
2084 | backtrace_cmd_options *bt_cmd_opts, | |
2085 | set_backtrace_options *set_bt_opts) | |
2086 | { | |
2087 | return {{ | |
2088 | { {frame_print_option_defs}, fp_opts }, | |
2089 | { {set_backtrace_option_defs}, set_bt_opts }, | |
2090 | { {backtrace_command_option_defs}, bt_cmd_opts } | |
2091 | }}; | |
2092 | } | |
2093 | ||
90a1ef87 PA |
2094 | /* Parse the backtrace command's qualifiers. Returns ARG advanced |
2095 | past the qualifiers, if any. BT_CMD_OPTS, if not null, is used to | |
2096 | store the parsed qualifiers. */ | |
2097 | ||
2098 | static const char * | |
2099 | parse_backtrace_qualifiers (const char *arg, | |
2100 | backtrace_cmd_options *bt_cmd_opts = nullptr) | |
2101 | { | |
2102 | while (true) | |
2103 | { | |
2104 | const char *save_arg = arg; | |
2105 | std::string this_arg = extract_arg (&arg); | |
2106 | ||
2107 | if (this_arg.empty ()) | |
2108 | return arg; | |
2109 | ||
2110 | if (subset_compare (this_arg.c_str (), "no-filters")) | |
2111 | { | |
2112 | if (bt_cmd_opts != nullptr) | |
2113 | bt_cmd_opts->no_filters = true; | |
2114 | } | |
2115 | else if (subset_compare (this_arg.c_str (), "full")) | |
2116 | { | |
2117 | if (bt_cmd_opts != nullptr) | |
2118 | bt_cmd_opts->full = true; | |
2119 | } | |
2120 | else if (subset_compare (this_arg.c_str (), "hide")) | |
2121 | { | |
2122 | if (bt_cmd_opts != nullptr) | |
2123 | bt_cmd_opts->hide = true; | |
2124 | } | |
2125 | else | |
2126 | { | |
2127 | /* Not a recognized qualifier, so stop. */ | |
2128 | return save_arg; | |
2129 | } | |
2130 | } | |
2131 | } | |
2132 | ||
c906108c | 2133 | static void |
0b39b52e | 2134 | backtrace_command (const char *arg, int from_tty) |
c906108c | 2135 | { |
d4c16835 PA |
2136 | frame_print_options fp_opts = user_frame_print_options; |
2137 | backtrace_cmd_options bt_cmd_opts; | |
2138 | set_backtrace_options set_bt_opts = user_set_backtrace_options; | |
c906108c | 2139 | |
d4c16835 PA |
2140 | auto grp |
2141 | = make_backtrace_options_def_group (&fp_opts, &bt_cmd_opts, &set_bt_opts); | |
2142 | gdb::option::process_options | |
2143 | (&arg, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
c906108c | 2144 | |
d4c16835 PA |
2145 | /* Parse non-'-'-prefixed qualifiers, for backwards |
2146 | compatibility. */ | |
2147 | if (arg != NULL) | |
2148 | { | |
90a1ef87 | 2149 | arg = parse_backtrace_qualifiers (arg, &bt_cmd_opts); |
ea3b0687 TT |
2150 | if (*arg == '\0') |
2151 | arg = NULL; | |
c906108c SS |
2152 | } |
2153 | ||
d4c16835 PA |
2154 | /* These options are handled quite deep in the unwind machinery, so |
2155 | we get to pass them down by swapping globals. */ | |
2156 | scoped_restore restore_set_backtrace_options | |
2157 | = make_scoped_restore (&user_set_backtrace_options, set_bt_opts); | |
2158 | ||
2159 | backtrace_command_1 (fp_opts, bt_cmd_opts, arg, from_tty); | |
2160 | } | |
2161 | ||
2162 | /* Completer for the "backtrace" command. */ | |
2163 | ||
2164 | static void | |
2165 | backtrace_command_completer (struct cmd_list_element *ignore, | |
2166 | completion_tracker &tracker, | |
2167 | const char *text, const char */*word*/) | |
2168 | { | |
2169 | const auto group | |
2170 | = make_backtrace_options_def_group (nullptr, nullptr, nullptr); | |
2171 | if (gdb::option::complete_options | |
2172 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
2173 | return; | |
2174 | ||
90a1ef87 PA |
2175 | if (*text != '\0') |
2176 | { | |
2177 | const char *p = skip_to_space (text); | |
2178 | if (*p == '\0') | |
2179 | { | |
2180 | static const char *const backtrace_cmd_qualifier_choices[] = { | |
2181 | "full", "no-filters", "hide", nullptr, | |
2182 | }; | |
2183 | complete_on_enum (tracker, backtrace_cmd_qualifier_choices, | |
2184 | text, text); | |
2185 | ||
2186 | if (tracker.have_completions ()) | |
2187 | return; | |
2188 | } | |
2189 | else | |
2190 | { | |
2191 | const char *cmd = parse_backtrace_qualifiers (text); | |
2192 | tracker.advance_custom_word_point_by (cmd - text); | |
2193 | text = cmd; | |
2194 | } | |
2195 | } | |
2196 | ||
d4c16835 PA |
2197 | const char *word = advance_to_expression_complete_word_point (tracker, text); |
2198 | expression_completer (ignore, tracker, text, word); | |
c906108c SS |
2199 | } |
2200 | ||
2c58c0a9 PA |
2201 | /* Iterate over the local variables of a block B, calling CB with |
2202 | CB_DATA. */ | |
c906108c | 2203 | |
2c58c0a9 | 2204 | static void |
3977b71f | 2205 | iterate_over_block_locals (const struct block *b, |
2c58c0a9 PA |
2206 | iterate_over_block_arg_local_vars_cb cb, |
2207 | void *cb_data) | |
c906108c | 2208 | { |
8157b174 | 2209 | struct block_iterator iter; |
de4f826b | 2210 | struct symbol *sym; |
c906108c | 2211 | |
de4f826b | 2212 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 2213 | { |
c906108c SS |
2214 | switch (SYMBOL_CLASS (sym)) |
2215 | { | |
2216 | case LOC_LOCAL: | |
2217 | case LOC_REGISTER: | |
2218 | case LOC_STATIC: | |
4c2df51b | 2219 | case LOC_COMPUTED: |
41bd68f5 | 2220 | case LOC_OPTIMIZED_OUT: |
2a2d4dc3 AS |
2221 | if (SYMBOL_IS_ARGUMENT (sym)) |
2222 | break; | |
4357ac6c TT |
2223 | if (SYMBOL_DOMAIN (sym) == COMMON_BLOCK_DOMAIN) |
2224 | break; | |
2c58c0a9 | 2225 | (*cb) (SYMBOL_PRINT_NAME (sym), sym, cb_data); |
c906108c SS |
2226 | break; |
2227 | ||
2228 | default: | |
2229 | /* Ignore symbols which are not locals. */ | |
2230 | break; | |
2231 | } | |
2232 | } | |
c906108c SS |
2233 | } |
2234 | ||
65c06092 | 2235 | |
c906108c SS |
2236 | /* Same, but print labels. */ |
2237 | ||
65c06092 JB |
2238 | #if 0 |
2239 | /* Commented out, as the code using this function has also been | |
2240 | commented out. FIXME:brobecker/2009-01-13: Find out why the code | |
2241 | was commented out in the first place. The discussion introducing | |
2242 | this change (2007-12-04: Support lexical blocks and function bodies | |
2243 | that occupy non-contiguous address ranges) did not explain why | |
2244 | this change was made. */ | |
c906108c | 2245 | static int |
5af949e3 UW |
2246 | print_block_frame_labels (struct gdbarch *gdbarch, struct block *b, |
2247 | int *have_default, struct ui_file *stream) | |
c906108c | 2248 | { |
8157b174 | 2249 | struct block_iterator iter; |
52f0bd74 AC |
2250 | struct symbol *sym; |
2251 | int values_printed = 0; | |
c906108c | 2252 | |
de4f826b | 2253 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 2254 | { |
3567439c | 2255 | if (strcmp (SYMBOL_LINKAGE_NAME (sym), "default") == 0) |
c906108c SS |
2256 | { |
2257 | if (*have_default) | |
2258 | continue; | |
2259 | *have_default = 1; | |
2260 | } | |
2261 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
2262 | { | |
2263 | struct symtab_and_line sal; | |
79a45b7d | 2264 | struct value_print_options opts; |
433759f7 | 2265 | |
c906108c SS |
2266 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); |
2267 | values_printed = 1; | |
de5ad195 | 2268 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
79a45b7d TT |
2269 | get_user_print_options (&opts); |
2270 | if (opts.addressprint) | |
c906108c SS |
2271 | { |
2272 | fprintf_filtered (stream, " "); | |
5af949e3 UW |
2273 | fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (sym)), |
2274 | stream); | |
c906108c SS |
2275 | } |
2276 | fprintf_filtered (stream, " in file %s, line %d\n", | |
2277 | sal.symtab->filename, sal.line); | |
2278 | } | |
2279 | } | |
033a42c2 | 2280 | |
c906108c SS |
2281 | return values_printed; |
2282 | } | |
65c06092 | 2283 | #endif |
c906108c | 2284 | |
2c58c0a9 PA |
2285 | /* Iterate over all the local variables in block B, including all its |
2286 | superblocks, stopping when the top-level block is reached. */ | |
2287 | ||
2288 | void | |
3977b71f | 2289 | iterate_over_block_local_vars (const struct block *block, |
2c58c0a9 PA |
2290 | iterate_over_block_arg_local_vars_cb cb, |
2291 | void *cb_data) | |
2292 | { | |
2293 | while (block) | |
2294 | { | |
2295 | iterate_over_block_locals (block, cb, cb_data); | |
2296 | /* After handling the function's top-level block, stop. Don't | |
2297 | continue to its superblock, the block of per-file | |
2298 | symbols. */ | |
2299 | if (BLOCK_FUNCTION (block)) | |
2300 | break; | |
2301 | block = BLOCK_SUPERBLOCK (block); | |
2302 | } | |
2303 | } | |
2304 | ||
2305 | /* Data to be passed around in the calls to the locals and args | |
2306 | iterators. */ | |
c906108c | 2307 | |
2c58c0a9 PA |
2308 | struct print_variable_and_value_data |
2309 | { | |
12615cba PW |
2310 | gdb::optional<compiled_regex> preg; |
2311 | gdb::optional<compiled_regex> treg; | |
8f043999 | 2312 | struct frame_id frame_id; |
2c58c0a9 PA |
2313 | int num_tabs; |
2314 | struct ui_file *stream; | |
2315 | int values_printed; | |
2316 | }; | |
2317 | ||
c378eb4e | 2318 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
2319 | |
2320 | static void | |
2321 | do_print_variable_and_value (const char *print_name, | |
2322 | struct symbol *sym, | |
2323 | void *cb_data) | |
2324 | { | |
19ba03f4 SM |
2325 | struct print_variable_and_value_data *p |
2326 | = (struct print_variable_and_value_data *) cb_data; | |
8f043999 JK |
2327 | struct frame_info *frame; |
2328 | ||
12615cba PW |
2329 | if (p->preg.has_value () |
2330 | && p->preg->exec (SYMBOL_NATURAL_NAME (sym), 0, | |
2331 | NULL, 0) != 0) | |
2332 | return; | |
2333 | if (p->treg.has_value () | |
2334 | && !treg_matches_sym_type_name (*p->treg, sym)) | |
2335 | return; | |
2336 | ||
8f043999 JK |
2337 | frame = frame_find_by_id (p->frame_id); |
2338 | if (frame == NULL) | |
2339 | { | |
2340 | warning (_("Unable to restore previously selected frame.")); | |
2341 | return; | |
2342 | } | |
2343 | ||
2344 | print_variable_and_value (print_name, sym, frame, p->stream, p->num_tabs); | |
2345 | ||
2346 | /* print_variable_and_value invalidates FRAME. */ | |
2347 | frame = NULL; | |
2c58c0a9 | 2348 | |
2c58c0a9 PA |
2349 | p->values_printed = 1; |
2350 | } | |
c906108c | 2351 | |
12615cba PW |
2352 | /* Prepares the regular expression REG from REGEXP. |
2353 | If REGEXP is NULL, it results in an empty regular expression. */ | |
2354 | ||
2355 | static void | |
2356 | prepare_reg (const char *regexp, gdb::optional<compiled_regex> *reg) | |
2357 | { | |
2358 | if (regexp != NULL) | |
2359 | { | |
2360 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
2361 | ? REG_ICASE : 0); | |
2362 | reg->emplace (regexp, cflags, _("Invalid regexp")); | |
2363 | } | |
2364 | else | |
2365 | reg->reset (); | |
2366 | } | |
2367 | ||
8f043999 JK |
2368 | /* Print all variables from the innermost up to the function block of FRAME. |
2369 | Print them with values to STREAM indented by NUM_TABS. | |
12615cba PW |
2370 | If REGEXP is not NULL, only print local variables whose name |
2371 | matches REGEXP. | |
2372 | If T_REGEXP is not NULL, only print local variables whose type | |
2373 | matches T_REGEXP. | |
2374 | If no local variables have been printed and !QUIET, prints a message | |
2375 | explaining why no local variables could be printed. | |
8f043999 JK |
2376 | |
2377 | This function will invalidate FRAME. */ | |
2378 | ||
c906108c | 2379 | static void |
12615cba PW |
2380 | print_frame_local_vars (struct frame_info *frame, |
2381 | bool quiet, | |
2382 | const char *regexp, const char *t_regexp, | |
2383 | int num_tabs, struct ui_file *stream) | |
c906108c | 2384 | { |
2c58c0a9 | 2385 | struct print_variable_and_value_data cb_data; |
3977b71f | 2386 | const struct block *block; |
1d4f5741 PA |
2387 | CORE_ADDR pc; |
2388 | ||
2389 | if (!get_frame_pc_if_available (frame, &pc)) | |
2390 | { | |
12615cba PW |
2391 | if (!quiet) |
2392 | fprintf_filtered (stream, | |
2393 | _("PC unavailable, cannot determine locals.\n")); | |
1d4f5741 PA |
2394 | return; |
2395 | } | |
c906108c | 2396 | |
2c58c0a9 | 2397 | block = get_frame_block (frame, 0); |
c906108c SS |
2398 | if (block == 0) |
2399 | { | |
12615cba PW |
2400 | if (!quiet) |
2401 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
c906108c SS |
2402 | return; |
2403 | } | |
c5aa993b | 2404 | |
12615cba PW |
2405 | prepare_reg (regexp, &cb_data.preg); |
2406 | prepare_reg (t_regexp, &cb_data.treg); | |
8f043999 | 2407 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 PA |
2408 | cb_data.num_tabs = 4 * num_tabs; |
2409 | cb_data.stream = stream; | |
2410 | cb_data.values_printed = 0; | |
2411 | ||
16c3b12f JB |
2412 | /* Temporarily change the selected frame to the given FRAME. |
2413 | This allows routines that rely on the selected frame instead | |
2414 | of being given a frame as parameter to use the correct frame. */ | |
45f25d6c | 2415 | scoped_restore_selected_frame restore_selected_frame; |
16c3b12f JB |
2416 | select_frame (frame); |
2417 | ||
45f25d6c AB |
2418 | iterate_over_block_local_vars (block, |
2419 | do_print_variable_and_value, | |
2420 | &cb_data); | |
8f043999 | 2421 | |
12615cba PW |
2422 | if (!cb_data.values_printed && !quiet) |
2423 | { | |
2424 | if (regexp == NULL && t_regexp == NULL) | |
2425 | fprintf_filtered (stream, _("No locals.\n")); | |
2426 | else | |
2427 | fprintf_filtered (stream, _("No matching locals.\n")); | |
2428 | } | |
c906108c SS |
2429 | } |
2430 | ||
4acfdd20 AB |
2431 | /* Structure to hold the values of the options used by the 'info |
2432 | variables' command and other similar commands. These correspond to the | |
2433 | -q and -t options. */ | |
2434 | ||
2435 | struct info_print_options | |
2436 | { | |
491144b5 | 2437 | bool quiet = false; |
4acfdd20 AB |
2438 | char *type_regexp = nullptr; |
2439 | ||
2440 | ~info_print_options () | |
2441 | { | |
2442 | xfree (type_regexp); | |
2443 | } | |
2444 | }; | |
2445 | ||
2446 | /* The options used by the 'info locals' and 'info args' commands. */ | |
2447 | ||
2448 | static const gdb::option::option_def info_print_options_defs[] = { | |
2449 | gdb::option::boolean_option_def<info_print_options> { | |
2450 | "q", | |
2451 | [] (info_print_options *opt) { return &opt->quiet; }, | |
2452 | nullptr, /* show_cmd_cb */ | |
2453 | nullptr /* set_doc */ | |
2454 | }, | |
2455 | ||
2456 | gdb::option::string_option_def<info_print_options> { | |
2457 | "t", | |
2458 | [] (info_print_options *opt) { return &opt->type_regexp; }, | |
2459 | nullptr, /* show_cmd_cb */ | |
2460 | nullptr /* set_doc */ | |
2461 | } | |
2462 | }; | |
2463 | ||
2464 | /* Returns the option group used by 'info locals' and 'info args' | |
2465 | commands. */ | |
2466 | ||
2467 | static gdb::option::option_def_group | |
2468 | make_info_print_options_def_group (info_print_options *opts) | |
2469 | { | |
2470 | return {{info_print_options_defs}, opts}; | |
2471 | } | |
2472 | ||
2473 | /* Command completer for 'info locals' and 'info args'. */ | |
2474 | ||
2475 | static void | |
2476 | info_print_command_completer (struct cmd_list_element *ignore, | |
2477 | completion_tracker &tracker, | |
2478 | const char *text, const char * /* word */) | |
2479 | { | |
2480 | const auto group | |
2481 | = make_info_print_options_def_group (nullptr); | |
2482 | if (gdb::option::complete_options | |
2483 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
2484 | return; | |
2485 | ||
2486 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
2487 | symbol_completer (ignore, tracker, text, word); | |
2488 | } | |
2489 | ||
b16507e0 AB |
2490 | /* Implement the 'info locals' command. */ |
2491 | ||
c906108c | 2492 | void |
1d12d88f | 2493 | info_locals_command (const char *args, int from_tty) |
c906108c | 2494 | { |
b16507e0 | 2495 | info_print_options opts; |
4acfdd20 AB |
2496 | auto grp = make_info_print_options_def_group (&opts); |
2497 | gdb::option::process_options | |
2498 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
2499 | if (args != nullptr && *args == '\0') | |
2500 | args = nullptr; | |
12615cba | 2501 | |
033a42c2 | 2502 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b16507e0 | 2503 | opts.quiet, args, opts.type_regexp, |
b04f3ab4 | 2504 | 0, gdb_stdout); |
c906108c SS |
2505 | } |
2506 | ||
d392224a | 2507 | /* Iterate over all the argument variables in block B. */ |
2c58c0a9 PA |
2508 | |
2509 | void | |
3977b71f | 2510 | iterate_over_block_arg_vars (const struct block *b, |
2c58c0a9 PA |
2511 | iterate_over_block_arg_local_vars_cb cb, |
2512 | void *cb_data) | |
c906108c | 2513 | { |
8157b174 | 2514 | struct block_iterator iter; |
52f0bd74 | 2515 | struct symbol *sym, *sym2; |
c906108c | 2516 | |
de4f826b | 2517 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 2518 | { |
2a2d4dc3 AS |
2519 | /* Don't worry about things which aren't arguments. */ |
2520 | if (SYMBOL_IS_ARGUMENT (sym)) | |
c906108c | 2521 | { |
c906108c SS |
2522 | /* We have to look up the symbol because arguments can have |
2523 | two entries (one a parameter, one a local) and the one we | |
2524 | want is the local, which lookup_symbol will find for us. | |
2525 | This includes gcc1 (not gcc2) on the sparc when passing a | |
2526 | small structure and gcc2 when the argument type is float | |
2527 | and it is passed as a double and converted to float by | |
2528 | the prologue (in the latter case the type of the LOC_ARG | |
2529 | symbol is double and the type of the LOC_LOCAL symbol is | |
2530 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
2531 | are not combined in symbol-reading. */ | |
2532 | ||
de63c46b PA |
2533 | sym2 = lookup_symbol_search_name (SYMBOL_SEARCH_NAME (sym), |
2534 | b, VAR_DOMAIN).symbol; | |
2c58c0a9 | 2535 | (*cb) (SYMBOL_PRINT_NAME (sym), sym2, cb_data); |
c906108c SS |
2536 | } |
2537 | } | |
2c58c0a9 PA |
2538 | } |
2539 | ||
8f043999 JK |
2540 | /* Print all argument variables of the function of FRAME. |
2541 | Print them with values to STREAM. | |
12615cba PW |
2542 | If REGEXP is not NULL, only print argument variables whose name |
2543 | matches REGEXP. | |
2544 | If T_REGEXP is not NULL, only print argument variables whose type | |
2545 | matches T_REGEXP. | |
2546 | If no argument variables have been printed and !QUIET, prints a message | |
2547 | explaining why no argument variables could be printed. | |
8f043999 JK |
2548 | |
2549 | This function will invalidate FRAME. */ | |
2550 | ||
2c58c0a9 | 2551 | static void |
12615cba PW |
2552 | print_frame_arg_vars (struct frame_info *frame, |
2553 | bool quiet, | |
2554 | const char *regexp, const char *t_regexp, | |
2555 | struct ui_file *stream) | |
2c58c0a9 PA |
2556 | { |
2557 | struct print_variable_and_value_data cb_data; | |
2558 | struct symbol *func; | |
1d4f5741 | 2559 | CORE_ADDR pc; |
12615cba PW |
2560 | gdb::optional<compiled_regex> preg; |
2561 | gdb::optional<compiled_regex> treg; | |
1d4f5741 PA |
2562 | |
2563 | if (!get_frame_pc_if_available (frame, &pc)) | |
2564 | { | |
12615cba PW |
2565 | if (!quiet) |
2566 | fprintf_filtered (stream, | |
2567 | _("PC unavailable, cannot determine args.\n")); | |
1d4f5741 PA |
2568 | return; |
2569 | } | |
2c58c0a9 PA |
2570 | |
2571 | func = get_frame_function (frame); | |
2572 | if (func == NULL) | |
2573 | { | |
12615cba PW |
2574 | if (!quiet) |
2575 | fprintf_filtered (stream, _("No symbol table info available.\n")); | |
2c58c0a9 PA |
2576 | return; |
2577 | } | |
2578 | ||
12615cba PW |
2579 | prepare_reg (regexp, &cb_data.preg); |
2580 | prepare_reg (t_regexp, &cb_data.treg); | |
8f043999 | 2581 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 | 2582 | cb_data.num_tabs = 0; |
d392224a | 2583 | cb_data.stream = stream; |
2c58c0a9 PA |
2584 | cb_data.values_printed = 0; |
2585 | ||
2586 | iterate_over_block_arg_vars (SYMBOL_BLOCK_VALUE (func), | |
2587 | do_print_variable_and_value, &cb_data); | |
033a42c2 | 2588 | |
8f043999 JK |
2589 | /* do_print_variable_and_value invalidates FRAME. */ |
2590 | frame = NULL; | |
2591 | ||
12615cba PW |
2592 | if (!cb_data.values_printed && !quiet) |
2593 | { | |
2594 | if (regexp == NULL && t_regexp == NULL) | |
2595 | fprintf_filtered (stream, _("No arguments.\n")); | |
2596 | else | |
2597 | fprintf_filtered (stream, _("No matching arguments.\n")); | |
2598 | } | |
c906108c SS |
2599 | } |
2600 | ||
b16507e0 AB |
2601 | /* Implement the 'info args' command. */ |
2602 | ||
c906108c | 2603 | void |
12615cba | 2604 | info_args_command (const char *args, int from_tty) |
c906108c | 2605 | { |
b16507e0 | 2606 | info_print_options opts; |
4acfdd20 AB |
2607 | auto grp = make_info_print_options_def_group (&opts); |
2608 | gdb::option::process_options | |
2609 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
2610 | if (args != nullptr && *args == '\0') | |
2611 | args = nullptr; | |
12615cba | 2612 | |
033a42c2 | 2613 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b16507e0 | 2614 | opts.quiet, args, opts.type_regexp, gdb_stdout); |
c906108c | 2615 | } |
c906108c | 2616 | \f |
c906108c | 2617 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
2618 | Can return zero under various legitimate circumstances. |
2619 | ||
2620 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
2621 | code address within the block returned. We use this to decide | |
2622 | which macros are in scope. */ | |
c906108c | 2623 | |
3977b71f | 2624 | const struct block * |
ae767bfb | 2625 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c | 2626 | { |
d729566a | 2627 | if (!has_stack_frames ()) |
8ea051c5 PA |
2628 | return 0; |
2629 | ||
206415a3 | 2630 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
2631 | } |
2632 | ||
2633 | /* Find a frame a certain number of levels away from FRAME. | |
2634 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
2635 | Positive means go to earlier frames (up); negative, the reverse. | |
2636 | The int that contains the number of levels is counted toward | |
2637 | zero as the frames for those levels are found. | |
2638 | If the top or bottom frame is reached, that frame is returned, | |
2639 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
2640 | how much farther the original request asked to go. */ | |
2641 | ||
2642 | struct frame_info * | |
033a42c2 | 2643 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 2644 | { |
033a42c2 MK |
2645 | /* Going up is simple: just call get_prev_frame enough times or |
2646 | until the initial frame is reached. */ | |
c906108c SS |
2647 | while (*level_offset_ptr > 0) |
2648 | { | |
033a42c2 | 2649 | struct frame_info *prev = get_prev_frame (frame); |
433759f7 | 2650 | |
033a42c2 | 2651 | if (!prev) |
c906108c SS |
2652 | break; |
2653 | (*level_offset_ptr)--; | |
2654 | frame = prev; | |
2655 | } | |
033a42c2 | 2656 | |
c906108c | 2657 | /* Going down is just as simple. */ |
033a42c2 | 2658 | while (*level_offset_ptr < 0) |
c906108c | 2659 | { |
033a42c2 | 2660 | struct frame_info *next = get_next_frame (frame); |
433759f7 | 2661 | |
033a42c2 MK |
2662 | if (!next) |
2663 | break; | |
2664 | (*level_offset_ptr)++; | |
2665 | frame = next; | |
c906108c | 2666 | } |
033a42c2 | 2667 | |
c906108c SS |
2668 | return frame; |
2669 | } | |
2670 | ||
033a42c2 MK |
2671 | /* Select the frame up one or COUNT_EXP stack levels from the |
2672 | previously selected frame, and print it briefly. */ | |
c906108c | 2673 | |
c906108c | 2674 | static void |
d3d3328b | 2675 | up_silently_base (const char *count_exp) |
c906108c | 2676 | { |
033a42c2 MK |
2677 | struct frame_info *frame; |
2678 | int count = 1; | |
2679 | ||
c906108c | 2680 | if (count_exp) |
bb518678 | 2681 | count = parse_and_eval_long (count_exp); |
c5aa993b | 2682 | |
033a42c2 MK |
2683 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2684 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 2685 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 2686 | select_frame (frame); |
c906108c SS |
2687 | } |
2688 | ||
2689 | static void | |
0b39b52e | 2690 | up_silently_command (const char *count_exp, int from_tty) |
c906108c | 2691 | { |
c5aa993b | 2692 | up_silently_base (count_exp); |
c906108c SS |
2693 | } |
2694 | ||
2695 | static void | |
0b39b52e | 2696 | up_command (const char *count_exp, int from_tty) |
c906108c SS |
2697 | { |
2698 | up_silently_base (count_exp); | |
76727919 | 2699 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); |
c906108c SS |
2700 | } |
2701 | ||
033a42c2 MK |
2702 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
2703 | selected frame, and print it briefly. */ | |
c906108c | 2704 | |
c906108c | 2705 | static void |
d3d3328b | 2706 | down_silently_base (const char *count_exp) |
c906108c | 2707 | { |
52f0bd74 | 2708 | struct frame_info *frame; |
033a42c2 | 2709 | int count = -1; |
f89b749f | 2710 | |
c906108c | 2711 | if (count_exp) |
bb518678 | 2712 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 2713 | |
033a42c2 MK |
2714 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2715 | if (count != 0 && count_exp == NULL) | |
c906108c | 2716 | { |
033a42c2 MK |
2717 | /* We only do this if COUNT_EXP is not specified. That way |
2718 | "down" means to really go down (and let me know if that is | |
2719 | impossible), but "down 9999" can be used to mean go all the | |
2720 | way down without getting an error. */ | |
c906108c | 2721 | |
033a42c2 | 2722 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
2723 | } |
2724 | ||
0f7d239c | 2725 | select_frame (frame); |
c906108c SS |
2726 | } |
2727 | ||
c906108c | 2728 | static void |
0b39b52e | 2729 | down_silently_command (const char *count_exp, int from_tty) |
c906108c SS |
2730 | { |
2731 | down_silently_base (count_exp); | |
c906108c SS |
2732 | } |
2733 | ||
2734 | static void | |
0b39b52e | 2735 | down_command (const char *count_exp, int from_tty) |
c906108c SS |
2736 | { |
2737 | down_silently_base (count_exp); | |
76727919 | 2738 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); |
c906108c | 2739 | } |
033a42c2 | 2740 | |
8b93c638 | 2741 | void |
0b39b52e | 2742 | return_command (const char *retval_exp, int from_tty) |
c906108c | 2743 | { |
901900c4 MGD |
2744 | /* Initialize it just to avoid a GCC false warning. */ |
2745 | enum return_value_convention rv_conv = RETURN_VALUE_STRUCT_CONVENTION; | |
5ed92fa8 | 2746 | struct frame_info *thisframe; |
d80b854b | 2747 | struct gdbarch *gdbarch; |
c906108c | 2748 | struct symbol *thisfun; |
3d6d86c6 | 2749 | struct value *return_value = NULL; |
6a3a010b | 2750 | struct value *function = NULL; |
fc70c2a0 | 2751 | const char *query_prefix = ""; |
c906108c | 2752 | |
5ed92fa8 UW |
2753 | thisframe = get_selected_frame ("No selected frame."); |
2754 | thisfun = get_frame_function (thisframe); | |
d80b854b | 2755 | gdbarch = get_frame_arch (thisframe); |
c906108c | 2756 | |
edb3359d DJ |
2757 | if (get_frame_type (get_current_frame ()) == INLINE_FRAME) |
2758 | error (_("Can not force return from an inlined function.")); | |
2759 | ||
fc70c2a0 AC |
2760 | /* Compute the return value. If the computation triggers an error, |
2761 | let it bail. If the return type can't be handled, set | |
2762 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
2763 | message. */ | |
c906108c SS |
2764 | if (retval_exp) |
2765 | { | |
4d01a485 | 2766 | expression_up retval_expr = parse_expression (retval_exp); |
c906108c SS |
2767 | struct type *return_type = NULL; |
2768 | ||
fc70c2a0 AC |
2769 | /* Compute the return value. Should the computation fail, this |
2770 | call throws an error. */ | |
4d01a485 | 2771 | return_value = evaluate_expression (retval_expr.get ()); |
c906108c | 2772 | |
fc70c2a0 AC |
2773 | /* Cast return value to the return type of the function. Should |
2774 | the cast fail, this call throws an error. */ | |
c906108c SS |
2775 | if (thisfun != NULL) |
2776 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
2777 | if (return_type == NULL) | |
61ff14c6 | 2778 | { |
9eaf6705 TT |
2779 | if (retval_expr->elts[0].opcode != UNOP_CAST |
2780 | && retval_expr->elts[0].opcode != UNOP_CAST_TYPE) | |
61ff14c6 JK |
2781 | error (_("Return value type not available for selected " |
2782 | "stack frame.\n" | |
2783 | "Please use an explicit cast of the value to return.")); | |
2784 | return_type = value_type (return_value); | |
2785 | } | |
f168693b | 2786 | return_type = check_typedef (return_type); |
c906108c SS |
2787 | return_value = value_cast (return_type, return_value); |
2788 | ||
fc70c2a0 AC |
2789 | /* Make sure the value is fully evaluated. It may live in the |
2790 | stack frame we're about to pop. */ | |
d69fe07e | 2791 | if (value_lazy (return_value)) |
c906108c | 2792 | value_fetch_lazy (return_value); |
c906108c | 2793 | |
6a3a010b | 2794 | if (thisfun != NULL) |
63e43d3a | 2795 | function = read_var_value (thisfun, NULL, thisframe); |
6a3a010b | 2796 | |
bbfdfe1c | 2797 | rv_conv = RETURN_VALUE_REGISTER_CONVENTION; |
667e784f AC |
2798 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
2799 | /* If the return-type is "void", don't try to find the | |
2800 | return-value's location. However, do still evaluate the | |
2801 | return expression so that, even when the expression result | |
2802 | is discarded, side effects such as "return i++" still | |
033a42c2 | 2803 | occur. */ |
667e784f | 2804 | return_value = NULL; |
bbfdfe1c | 2805 | else if (thisfun != NULL) |
fc70c2a0 | 2806 | { |
bbfdfe1c DM |
2807 | rv_conv = struct_return_convention (gdbarch, function, return_type); |
2808 | if (rv_conv == RETURN_VALUE_STRUCT_CONVENTION | |
2809 | || rv_conv == RETURN_VALUE_ABI_RETURNS_ADDRESS) | |
2810 | { | |
2811 | query_prefix = "The location at which to store the " | |
2812 | "function's return value is unknown.\n" | |
2813 | "If you continue, the return value " | |
2814 | "that you specified will be ignored.\n"; | |
2815 | return_value = NULL; | |
2816 | } | |
fc70c2a0 | 2817 | } |
c906108c SS |
2818 | } |
2819 | ||
fc70c2a0 AC |
2820 | /* Does an interactive user really want to do this? Include |
2821 | information, such as how well GDB can handle the return value, in | |
2822 | the query message. */ | |
2823 | if (from_tty) | |
2824 | { | |
2825 | int confirmed; | |
433759f7 | 2826 | |
fc70c2a0 | 2827 | if (thisfun == NULL) |
e2e0b3e5 | 2828 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
2829 | query_prefix); |
2830 | else | |
743649fd MW |
2831 | { |
2832 | if (TYPE_NO_RETURN (thisfun->type)) | |
d35b90fb | 2833 | warning (_("Function does not return normally to caller.")); |
743649fd MW |
2834 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
2835 | SYMBOL_PRINT_NAME (thisfun)); | |
2836 | } | |
fc70c2a0 | 2837 | if (!confirmed) |
8a3fe4f8 | 2838 | error (_("Not confirmed")); |
fc70c2a0 | 2839 | } |
c906108c | 2840 | |
a45ae3ed UW |
2841 | /* Discard the selected frame and all frames inner-to it. */ |
2842 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 2843 | |
a1f5b845 | 2844 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
2845 | if (return_value != NULL) |
2846 | { | |
df407dfe | 2847 | struct type *return_type = value_type (return_value); |
b926417a | 2848 | struct gdbarch *cache_arch = get_current_regcache ()->arch (); |
42e2132c | 2849 | |
bbfdfe1c DM |
2850 | gdb_assert (rv_conv != RETURN_VALUE_STRUCT_CONVENTION |
2851 | && rv_conv != RETURN_VALUE_ABI_RETURNS_ADDRESS); | |
b926417a | 2852 | gdbarch_return_value (cache_arch, function, return_type, |
594f7785 | 2853 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 2854 | value_contents (return_value) /*write*/); |
fc70c2a0 | 2855 | } |
1a2aab69 | 2856 | |
fc70c2a0 AC |
2857 | /* If we are at the end of a call dummy now, pop the dummy frame |
2858 | too. */ | |
e8bcf01f AC |
2859 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
2860 | frame_pop (get_current_frame ()); | |
1a2aab69 | 2861 | |
edbbff4a | 2862 | select_frame (get_current_frame ()); |
c906108c | 2863 | /* If interactive, print the frame that is now current. */ |
c906108c | 2864 | if (from_tty) |
edbbff4a | 2865 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
c906108c SS |
2866 | } |
2867 | ||
39f0c204 AB |
2868 | /* Find the most inner frame in the current stack for a function called |
2869 | FUNCTION_NAME. If no matching frame is found return NULL. */ | |
c906108c | 2870 | |
39f0c204 AB |
2871 | static struct frame_info * |
2872 | find_frame_for_function (const char *function_name) | |
c906108c | 2873 | { |
39f0c204 AB |
2874 | /* Used to hold the lower and upper addresses for each of the |
2875 | SYMTAB_AND_LINEs found for functions matching FUNCTION_NAME. */ | |
2876 | struct function_bounds | |
2877 | { | |
2878 | CORE_ADDR low, high; | |
2879 | }; | |
033a42c2 | 2880 | struct frame_info *frame; |
39f0c204 | 2881 | bool found = false; |
c906108c | 2882 | int level = 1; |
c906108c | 2883 | |
39f0c204 | 2884 | gdb_assert (function_name != NULL); |
c906108c | 2885 | |
edbbff4a | 2886 | frame = get_current_frame (); |
6c5b2ebe | 2887 | std::vector<symtab_and_line> sals |
39f0c204 AB |
2888 | = decode_line_with_current_source (function_name, |
2889 | DECODE_LINE_FUNFIRSTLINE); | |
0b868b60 | 2890 | gdb::def_vector<function_bounds> func_bounds (sals.size ()); |
39f0c204 | 2891 | for (size_t i = 0; i < sals.size (); i++) |
c906108c | 2892 | { |
6c5b2ebe | 2893 | if (sals[i].pspace != current_program_space) |
f8eba3c6 | 2894 | func_bounds[i].low = func_bounds[i].high = 0; |
6c5b2ebe PA |
2895 | else if (sals[i].pc == 0 |
2896 | || find_pc_partial_function (sals[i].pc, NULL, | |
f8eba3c6 TT |
2897 | &func_bounds[i].low, |
2898 | &func_bounds[i].high) == 0) | |
39f0c204 | 2899 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
2900 | } |
2901 | ||
2902 | do | |
2903 | { | |
6c5b2ebe | 2904 | for (size_t i = 0; (i < sals.size () && !found); i++) |
033a42c2 MK |
2905 | found = (get_frame_pc (frame) >= func_bounds[i].low |
2906 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
2907 | if (!found) |
2908 | { | |
2909 | level = 1; | |
033a42c2 | 2910 | frame = find_relative_frame (frame, &level); |
c906108c SS |
2911 | } |
2912 | } | |
2913 | while (!found && level == 0); | |
2914 | ||
c906108c | 2915 | if (!found) |
39f0c204 AB |
2916 | frame = NULL; |
2917 | ||
2918 | return frame; | |
2919 | } | |
2920 | ||
2921 | /* Implements the dbx 'func' command. */ | |
2922 | ||
2923 | static void | |
2924 | func_command (const char *arg, int from_tty) | |
2925 | { | |
2926 | if (arg == NULL) | |
2927 | return; | |
2928 | ||
2929 | struct frame_info *frame = find_frame_for_function (arg); | |
2930 | if (frame == NULL) | |
61367c61 | 2931 | error (_("'%s' not within current stack frame."), arg); |
39f0c204 AB |
2932 | if (frame != get_selected_frame (NULL)) |
2933 | { | |
2934 | select_frame (frame); | |
2935 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); | |
2936 | } | |
c906108c | 2937 | } |
033a42c2 | 2938 | |
5d707134 PA |
2939 | /* The qcs command line flags for the "frame apply" commands. Keep |
2940 | this in sync with the "thread apply" commands. */ | |
2941 | ||
2942 | using qcs_flag_option_def | |
2943 | = gdb::option::flag_option_def<qcs_flags>; | |
2944 | ||
2945 | static const gdb::option::option_def fr_qcs_flags_option_defs[] = { | |
2946 | qcs_flag_option_def { | |
2947 | "q", [] (qcs_flags *opt) { return &opt->quiet; }, | |
2948 | N_("Disables printing the frame location information."), | |
2949 | }, | |
2950 | ||
2951 | qcs_flag_option_def { | |
2952 | "c", [] (qcs_flags *opt) { return &opt->cont; }, | |
2953 | N_("Print any error raised by COMMAND and continue."), | |
2954 | }, | |
2955 | ||
2956 | qcs_flag_option_def { | |
2957 | "s", [] (qcs_flags *opt) { return &opt->silent; }, | |
2958 | N_("Silently ignore any errors or empty output produced by COMMAND."), | |
2959 | }, | |
2960 | }; | |
2961 | ||
2962 | /* Create an option_def_group array for all the "frame apply" options, | |
2963 | with FLAGS and SET_BT_OPTS as context. */ | |
2964 | ||
2965 | static inline std::array<gdb::option::option_def_group, 2> | |
2966 | make_frame_apply_options_def_group (qcs_flags *flags, | |
2967 | set_backtrace_options *set_bt_opts) | |
2968 | { | |
2969 | return {{ | |
2970 | { {fr_qcs_flags_option_defs}, flags }, | |
2971 | { {set_backtrace_option_defs}, set_bt_opts }, | |
2972 | }}; | |
2973 | } | |
2974 | ||
6a70eb7d PW |
2975 | /* Apply a GDB command to all stack frames, or a set of identified frames, |
2976 | or innermost COUNT frames. | |
2977 | With a negative COUNT, apply command on outermost -COUNT frames. | |
2978 | ||
2979 | frame apply 3 info frame Apply 'info frame' to frames 0, 1, 2 | |
2980 | frame apply -3 info frame Apply 'info frame' to outermost 3 frames. | |
2981 | frame apply all x/i $pc Apply 'x/i $pc' cmd to all frames. | |
2982 | frame apply all -s p local_var_no_idea_in_which_frame | |
2983 | If a frame has a local variable called | |
2984 | local_var_no_idea_in_which_frame, print frame | |
2985 | and value of local_var_no_idea_in_which_frame. | |
2986 | frame apply all -s -q p local_var_no_idea_in_which_frame | |
2987 | Same as before, but only print the variable value. | |
2988 | frame apply level 2-5 0 4-7 -s p i = i + 1 | |
2989 | Adds 1 to the variable i in the specified frames. | |
2990 | Note that i will be incremented twice in | |
2991 | frames 4 and 5. */ | |
2992 | ||
2993 | /* Apply a GDB command to COUNT stack frames, starting at TRAILING. | |
2994 | CMD starts with 0 or more qcs flags followed by the GDB command to apply. | |
2995 | COUNT -1 means all frames starting at TRAILING. WHICH_COMMAND is used | |
2996 | for error messages. */ | |
2997 | ||
2998 | static void | |
2999 | frame_apply_command_count (const char *which_command, | |
3000 | const char *cmd, int from_tty, | |
3001 | struct frame_info *trailing, int count) | |
3002 | { | |
3003 | qcs_flags flags; | |
5d707134 | 3004 | set_backtrace_options set_bt_opts = user_set_backtrace_options; |
6a70eb7d | 3005 | |
5d707134 PA |
3006 | auto group = make_frame_apply_options_def_group (&flags, &set_bt_opts); |
3007 | gdb::option::process_options | |
3008 | (&cmd, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group); | |
3009 | ||
3010 | validate_flags_qcs (which_command, &flags); | |
6a70eb7d PW |
3011 | |
3012 | if (cmd == NULL || *cmd == '\0') | |
3013 | error (_("Please specify a command to apply on the selected frames")); | |
3014 | ||
3015 | /* The below will restore the current inferior/thread/frame. | |
3016 | Usually, only the frame is effectively to be restored. | |
3017 | But in case CMD switches of inferior/thread, better restore | |
3018 | these also. */ | |
3019 | scoped_restore_current_thread restore_thread; | |
3020 | ||
5d707134 PA |
3021 | /* These options are handled quite deep in the unwind machinery, so |
3022 | we get to pass them down by swapping globals. */ | |
3023 | scoped_restore restore_set_backtrace_options | |
3024 | = make_scoped_restore (&user_set_backtrace_options, set_bt_opts); | |
3025 | ||
3026 | for (frame_info *fi = trailing; fi && count--; fi = get_prev_frame (fi)) | |
6a70eb7d PW |
3027 | { |
3028 | QUIT; | |
3029 | ||
3030 | select_frame (fi); | |
a70b8144 | 3031 | try |
6a70eb7d PW |
3032 | { |
3033 | std::string cmd_result; | |
3034 | { | |
3035 | /* In case CMD switches of inferior/thread/frame, the below | |
3036 | restores the inferior/thread/frame. FI can then be | |
3037 | set to the selected frame. */ | |
3038 | scoped_restore_current_thread restore_fi_current_frame; | |
3039 | ||
8a522c6c PW |
3040 | cmd_result = execute_command_to_string |
3041 | (cmd, from_tty, gdb_stdout->term_out ()); | |
6a70eb7d PW |
3042 | } |
3043 | fi = get_selected_frame (_("frame apply " | |
3044 | "unable to get selected frame.")); | |
3045 | if (!flags.silent || cmd_result.length () > 0) | |
3046 | { | |
3047 | if (!flags.quiet) | |
3048 | print_stack_frame (fi, 1, LOCATION, 0); | |
3049 | printf_filtered ("%s", cmd_result.c_str ()); | |
3050 | } | |
3051 | } | |
230d2906 | 3052 | catch (const gdb_exception_error &ex) |
6a70eb7d PW |
3053 | { |
3054 | fi = get_selected_frame (_("frame apply " | |
3055 | "unable to get selected frame.")); | |
3056 | if (!flags.silent) | |
3057 | { | |
3058 | if (!flags.quiet) | |
3059 | print_stack_frame (fi, 1, LOCATION, 0); | |
3060 | if (flags.cont) | |
3d6e9d23 | 3061 | printf_filtered ("%s\n", ex.what ()); |
6a70eb7d | 3062 | else |
eedc3f4f | 3063 | throw; |
6a70eb7d PW |
3064 | } |
3065 | } | |
6a70eb7d PW |
3066 | } |
3067 | } | |
3068 | ||
5d707134 PA |
3069 | /* Completer for the "frame apply ..." commands. */ |
3070 | ||
3071 | static void | |
3072 | frame_apply_completer (completion_tracker &tracker, const char *text) | |
3073 | { | |
3074 | const auto group = make_frame_apply_options_def_group (nullptr, nullptr); | |
3075 | if (gdb::option::complete_options | |
3076 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
3077 | return; | |
3078 | ||
3079 | complete_nested_command_line (tracker, text); | |
3080 | } | |
3081 | ||
3082 | /* Completer for the "frame apply" commands. */ | |
3083 | ||
3084 | static void | |
3085 | frame_apply_level_cmd_completer (struct cmd_list_element *ignore, | |
3086 | completion_tracker &tracker, | |
3087 | const char *text, const char */*word*/) | |
3088 | { | |
3089 | /* Do this explicitly because there's an early return below. */ | |
3090 | tracker.set_use_custom_word_point (true); | |
3091 | ||
3092 | number_or_range_parser levels (text); | |
3093 | ||
3094 | /* Skip the LEVEL list to find the options and command args. */ | |
3095 | try | |
3096 | { | |
3097 | while (!levels.finished ()) | |
3098 | { | |
3099 | /* Call for effect. */ | |
3100 | levels.get_number (); | |
3101 | ||
3102 | if (levels.in_range ()) | |
3103 | levels.skip_range (); | |
3104 | } | |
3105 | } | |
3106 | catch (const gdb_exception_error &ex) | |
3107 | { | |
3108 | /* get_number throws if it parses a negative number, for | |
3109 | example. But a seemingly negative number may be the start of | |
3110 | an option instead. */ | |
3111 | } | |
3112 | ||
3113 | const char *cmd = levels.cur_tok (); | |
3114 | ||
3115 | if (cmd == text) | |
3116 | { | |
3117 | /* No level list yet. */ | |
3118 | return; | |
3119 | } | |
3120 | ||
3121 | /* Check if we're past a valid LEVEL already. */ | |
3122 | if (levels.finished () | |
3123 | && cmd > text && !isspace (cmd[-1])) | |
3124 | return; | |
3125 | ||
3126 | /* We're past LEVELs, advance word point. */ | |
3127 | tracker.advance_custom_word_point_by (cmd - text); | |
3128 | text = cmd; | |
3129 | ||
3130 | frame_apply_completer (tracker, text); | |
3131 | } | |
3132 | ||
3133 | /* Completer for the "frame apply all" command. */ | |
3134 | ||
3135 | void | |
3136 | frame_apply_all_cmd_completer (struct cmd_list_element *ignore, | |
3137 | completion_tracker &tracker, | |
3138 | const char *text, const char */*word*/) | |
3139 | { | |
3140 | frame_apply_completer (tracker, text); | |
3141 | } | |
3142 | ||
3143 | /* Completer for the "frame apply COUNT" command. */ | |
3144 | ||
3145 | static void | |
3146 | frame_apply_cmd_completer (struct cmd_list_element *ignore, | |
3147 | completion_tracker &tracker, | |
3148 | const char *text, const char */*word*/) | |
3149 | { | |
3150 | const char *cmd = text; | |
3151 | ||
3152 | int count = get_number_trailer (&cmd, 0); | |
3153 | if (count == 0) | |
3154 | return; | |
3155 | ||
3156 | /* Check if we're past a valid COUNT already. */ | |
3157 | if (cmd > text && !isspace (cmd[-1])) | |
3158 | return; | |
3159 | ||
3160 | /* We're past COUNT, advance word point. */ | |
3161 | tracker.advance_custom_word_point_by (cmd - text); | |
3162 | text = cmd; | |
3163 | ||
3164 | frame_apply_completer (tracker, text); | |
3165 | } | |
3166 | ||
6a70eb7d PW |
3167 | /* Implementation of the "frame apply level" command. */ |
3168 | ||
3169 | static void | |
3170 | frame_apply_level_command (const char *cmd, int from_tty) | |
3171 | { | |
3172 | if (!target_has_stack) | |
3173 | error (_("No stack.")); | |
3174 | ||
3175 | bool level_found = false; | |
3176 | const char *levels_str = cmd; | |
3177 | number_or_range_parser levels (levels_str); | |
3178 | ||
3179 | /* Skip the LEVEL list to find the flags and command args. */ | |
3180 | while (!levels.finished ()) | |
3181 | { | |
8d49165d TT |
3182 | /* Call for effect. */ |
3183 | levels.get_number (); | |
6a70eb7d PW |
3184 | |
3185 | level_found = true; | |
3186 | if (levels.in_range ()) | |
3187 | levels.skip_range (); | |
3188 | } | |
3189 | ||
3190 | if (!level_found) | |
3191 | error (_("Missing or invalid LEVEL... argument")); | |
3192 | ||
3193 | cmd = levels.cur_tok (); | |
3194 | ||
3195 | /* Redo the LEVELS parsing, but applying COMMAND. */ | |
3196 | levels.init (levels_str); | |
3197 | while (!levels.finished ()) | |
3198 | { | |
3199 | const int level_beg = levels.get_number (); | |
3200 | int n_frames; | |
3201 | ||
3202 | if (levels.in_range ()) | |
3203 | { | |
3204 | n_frames = levels.end_value () - level_beg + 1; | |
3205 | levels.skip_range (); | |
3206 | } | |
3207 | else | |
3208 | n_frames = 1; | |
3209 | ||
3210 | frame_apply_command_count ("frame apply level", cmd, from_tty, | |
3211 | leading_innermost_frame (level_beg), n_frames); | |
3212 | } | |
3213 | } | |
3214 | ||
3215 | /* Implementation of the "frame apply all" command. */ | |
3216 | ||
3217 | static void | |
3218 | frame_apply_all_command (const char *cmd, int from_tty) | |
3219 | { | |
3220 | if (!target_has_stack) | |
3221 | error (_("No stack.")); | |
3222 | ||
3223 | frame_apply_command_count ("frame apply all", cmd, from_tty, | |
3224 | get_current_frame (), INT_MAX); | |
3225 | } | |
3226 | ||
3227 | /* Implementation of the "frame apply" command. */ | |
3228 | ||
3229 | static void | |
3230 | frame_apply_command (const char* cmd, int from_tty) | |
3231 | { | |
3232 | int count; | |
3233 | struct frame_info *trailing; | |
3234 | ||
3235 | if (!target_has_stack) | |
3236 | error (_("No stack.")); | |
3237 | ||
3238 | if (cmd == NULL) | |
3239 | error (_("Missing COUNT argument.")); | |
3240 | count = get_number_trailer (&cmd, 0); | |
3241 | if (count == 0) | |
3242 | error (_("Invalid COUNT argument.")); | |
3243 | ||
3244 | if (count < 0) | |
3245 | { | |
3246 | trailing = trailing_outermost_frame (-count); | |
3247 | count = -1; | |
3248 | } | |
3249 | else | |
3250 | trailing = get_current_frame (); | |
3251 | ||
3252 | frame_apply_command_count ("frame apply", cmd, from_tty, | |
3253 | trailing, count); | |
3254 | } | |
3255 | ||
3256 | /* Implementation of the "faas" command. */ | |
3257 | ||
3258 | static void | |
3259 | faas_command (const char *cmd, int from_tty) | |
3260 | { | |
3261 | std::string expanded = std::string ("frame apply all -s ") + cmd; | |
3262 | execute_command (expanded.c_str (), from_tty); | |
3263 | } | |
3264 | ||
3265 | ||
f67ffa6a AB |
3266 | /* Find inner-mode frame with frame address ADDRESS. Return NULL if no |
3267 | matching frame can be found. */ | |
3268 | ||
3269 | static struct frame_info * | |
3270 | find_frame_for_address (CORE_ADDR address) | |
3271 | { | |
3272 | struct frame_id id; | |
3273 | struct frame_info *fid; | |
3274 | ||
3275 | id = frame_id_build_wild (address); | |
3276 | ||
3277 | /* If (s)he specifies the frame with an address, he deserves | |
3278 | what (s)he gets. Still, give the highest one that matches. | |
3279 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
3280 | know). */ | |
3281 | for (fid = get_current_frame (); | |
3282 | fid != NULL; | |
3283 | fid = get_prev_frame (fid)) | |
3284 | { | |
3285 | if (frame_id_eq (id, get_frame_id (fid))) | |
3286 | { | |
3287 | struct frame_info *prev_frame; | |
3288 | ||
3289 | while (1) | |
3290 | { | |
3291 | prev_frame = get_prev_frame (fid); | |
3292 | if (!prev_frame | |
3293 | || !frame_id_eq (id, get_frame_id (prev_frame))) | |
3294 | break; | |
3295 | fid = prev_frame; | |
3296 | } | |
3297 | return fid; | |
3298 | } | |
3299 | } | |
3300 | return NULL; | |
3301 | } | |
3302 | ||
3303 | \f | |
3304 | ||
3305 | /* Commands with a prefix of `frame apply'. */ | |
3306 | static struct cmd_list_element *frame_apply_cmd_list = NULL; | |
3307 | ||
6a70eb7d | 3308 | /* Commands with a prefix of `frame'. */ |
f67ffa6a AB |
3309 | static struct cmd_list_element *frame_cmd_list = NULL; |
3310 | ||
3311 | /* Commands with a prefix of `select frame'. */ | |
3312 | static struct cmd_list_element *select_frame_cmd_list = NULL; | |
3313 | ||
3314 | /* Commands with a prefix of `info frame'. */ | |
3315 | static struct cmd_list_element *info_frame_cmd_list = NULL; | |
6a70eb7d | 3316 | |
c906108c | 3317 | void |
fba45db2 | 3318 | _initialize_stack (void) |
c906108c | 3319 | { |
f67ffa6a | 3320 | struct cmd_list_element *cmd; |
6a70eb7d | 3321 | |
1bedd215 AC |
3322 | add_com ("return", class_stack, return_command, _("\ |
3323 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
3324 | Control remains in the debugger, but when you continue\n\ |
3325 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
3326 | If an argument is given, it is an expression for the value to return.")); |
3327 | ||
3328 | add_com ("up", class_stack, up_command, _("\ | |
3329 | Select and print stack frame that called this one.\n\ | |
3330 | An argument says how many frames up to go.")); | |
3331 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
3332 | Same as the `up' command, but does not print anything.\n\ | |
3333 | This is useful in command scripts.")); | |
3334 | ||
3335 | add_com ("down", class_stack, down_command, _("\ | |
3336 | Select and print stack frame called by this one.\n\ | |
3337 | An argument says how many frames down to go.")); | |
c906108c SS |
3338 | add_com_alias ("do", "down", class_stack, 1); |
3339 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
3340 | add_com ("down-silently", class_support, down_silently_command, _("\ |
3341 | Same as the `down' command, but does not print anything.\n\ | |
3342 | This is useful in command scripts.")); | |
c906108c | 3343 | |
f67ffa6a AB |
3344 | add_prefix_cmd ("frame", class_stack, |
3345 | &frame_cmd.base_command, _("\ | |
3346 | Select and print a stack frame.\n\ | |
3347 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ | |
3348 | A single numerical argument specifies the frame to select."), | |
3349 | &frame_cmd_list, "frame ", 1, &cmdlist); | |
c906108c SS |
3350 | |
3351 | add_com_alias ("f", "frame", class_stack, 1); | |
3352 | ||
5d707134 | 3353 | #define FRAME_APPLY_OPTION_HELP "\ |
6a70eb7d | 3354 | Prints the frame location information followed by COMMAND output.\n\ |
5d707134 PA |
3355 | \n\ |
3356 | By default, an error raised during the execution of COMMAND\n\ | |
3357 | aborts \"frame apply\".\n\ | |
3358 | \n\ | |
3359 | Options:\n\ | |
3360 | %OPTIONS%" | |
3361 | ||
3362 | const auto frame_apply_opts | |
3363 | = make_frame_apply_options_def_group (nullptr, nullptr); | |
3364 | ||
8abfcabc | 3365 | static std::string frame_apply_cmd_help = gdb::option::build_help (_("\ |
5d707134 PA |
3366 | Apply a command to a number of frames.\n\ |
3367 | Usage: frame apply COUNT [OPTION]... COMMAND\n\ | |
6a70eb7d | 3368 | With a negative COUNT argument, applies the command on outermost -COUNT frames.\n" |
5d707134 PA |
3369 | FRAME_APPLY_OPTION_HELP), |
3370 | frame_apply_opts); | |
6a70eb7d | 3371 | |
5d707134 PA |
3372 | cmd = add_prefix_cmd ("apply", class_stack, frame_apply_command, |
3373 | frame_apply_cmd_help.c_str (), | |
3374 | &frame_apply_cmd_list, "frame apply ", 1, | |
3375 | &frame_cmd_list); | |
3376 | set_cmd_completer_handle_brkchars (cmd, frame_apply_cmd_completer); | |
3377 | ||
8abfcabc | 3378 | static std::string frame_apply_all_cmd_help = gdb::option::build_help (_("\ |
6a70eb7d PW |
3379 | Apply a command to all frames.\n\ |
3380 | \n\ | |
5d707134 PA |
3381 | Usage: frame apply all [OPTION]... COMMAND\n" |
3382 | FRAME_APPLY_OPTION_HELP), | |
3383 | frame_apply_opts); | |
6a70eb7d | 3384 | |
5d707134 PA |
3385 | cmd = add_cmd ("all", class_stack, frame_apply_all_command, |
3386 | frame_apply_all_cmd_help.c_str (), | |
3387 | &frame_apply_cmd_list); | |
3388 | set_cmd_completer_handle_brkchars (cmd, frame_apply_all_cmd_completer); | |
3389 | ||
8abfcabc | 3390 | static std::string frame_apply_level_cmd_help = gdb::option::build_help (_("\ |
6a70eb7d PW |
3391 | Apply a command to a list of frames.\n\ |
3392 | \n\ | |
5d707134 PA |
3393 | Usage: frame apply level LEVEL... [OPTION]... COMMAND\n\ |
3394 | LEVEL is a space-separated list of levels of frames to apply COMMAND on.\n" | |
3395 | FRAME_APPLY_OPTION_HELP), | |
3396 | frame_apply_opts); | |
3397 | ||
3398 | cmd = add_cmd ("level", class_stack, frame_apply_level_command, | |
3399 | frame_apply_level_cmd_help.c_str (), | |
f67ffa6a | 3400 | &frame_apply_cmd_list); |
5d707134 | 3401 | set_cmd_completer_handle_brkchars (cmd, frame_apply_level_cmd_completer); |
6a70eb7d | 3402 | |
5d707134 | 3403 | cmd = add_com ("faas", class_stack, faas_command, _("\ |
6a70eb7d | 3404 | Apply a command to all frames (ignoring errors and empty output).\n\ |
5d707134 PA |
3405 | Usage: faas [OPTION]... COMMAND\n\ |
3406 | shortcut for 'frame apply all -s [OPTION]... COMMAND'\n\ | |
3407 | See \"help frame apply all\" for available options.")); | |
3408 | set_cmd_completer_handle_brkchars (cmd, frame_apply_all_cmd_completer); | |
f67ffa6a AB |
3409 | |
3410 | add_prefix_cmd ("frame", class_stack, | |
3411 | &frame_cmd.base_command, _("\ | |
3412 | Select and print a stack frame.\n\ | |
3413 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ | |
3414 | A single numerical argument specifies the frame to select."), | |
3415 | &frame_cmd_list, "frame ", 1, &cmdlist); | |
3416 | add_com_alias ("f", "frame", class_stack, 1); | |
3417 | ||
3418 | add_cmd ("address", class_stack, &frame_cmd.address, | |
3419 | _("\ | |
590042fc | 3420 | Select and print a stack frame by stack address.\n\ |
f67ffa6a AB |
3421 | \n\ |
3422 | Usage: frame address STACK-ADDRESS"), | |
3423 | &frame_cmd_list); | |
3424 | ||
3425 | add_cmd ("view", class_stack, &frame_cmd.view, | |
3426 | _("\ | |
3427 | View a stack frame that might be outside the current backtrace.\n\ | |
3428 | \n\ | |
3429 | Usage: frame view STACK-ADDRESS\n\ | |
3430 | frame view STACK-ADDRESS PC-ADDRESS"), | |
3431 | &frame_cmd_list); | |
3432 | ||
3433 | cmd = add_cmd ("function", class_stack, &frame_cmd.function, | |
3434 | _("\ | |
3435 | Select and print a stack frame by function name.\n\ | |
3436 | \n\ | |
3437 | Usage: frame function NAME\n\ | |
3438 | \n\ | |
3439 | The innermost frame that visited function NAME is selected."), | |
3440 | &frame_cmd_list); | |
3441 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3442 | ||
3443 | ||
3444 | add_cmd ("level", class_stack, &frame_cmd.level, | |
3445 | _("\ | |
3446 | Select and print a stack frame by level.\n\ | |
3447 | \n\ | |
3448 | Usage: frame level LEVEL"), | |
3449 | &frame_cmd_list); | |
3450 | ||
3451 | cmd = add_prefix_cmd_suppress_notification ("select-frame", class_stack, | |
3452 | &select_frame_cmd.base_command, _("\ | |
1bedd215 | 3453 | Select a stack frame without printing anything.\n\ |
f67ffa6a AB |
3454 | A single numerical argument specifies the frame to select."), |
3455 | &select_frame_cmd_list, "select-frame ", 1, &cmdlist, | |
3456 | &cli_suppress_notification.user_selected_context); | |
3457 | ||
3458 | add_cmd_suppress_notification ("address", class_stack, | |
3459 | &select_frame_cmd.address, _("\ | |
3460 | Select a stack frame by stack address.\n\ | |
3461 | \n\ | |
3462 | Usage: select-frame address STACK-ADDRESS"), | |
3463 | &select_frame_cmd_list, | |
3464 | &cli_suppress_notification.user_selected_context); | |
3465 | ||
3466 | ||
3467 | add_cmd_suppress_notification ("view", class_stack, | |
3468 | &select_frame_cmd.view, _("\ | |
3469 | Select a stack frame that might be outside the current backtrace.\n\ | |
3470 | \n\ | |
3471 | Usage: select-frame view STACK-ADDRESS\n\ | |
3472 | select-frame view STACK-ADDRESS PC-ADDRESS"), | |
3473 | &select_frame_cmd_list, | |
4034d0ff | 3474 | &cli_suppress_notification.user_selected_context); |
c906108c | 3475 | |
f67ffa6a AB |
3476 | cmd = add_cmd_suppress_notification ("function", class_stack, |
3477 | &select_frame_cmd.function, _("\ | |
3478 | Select a stack frame by function name.\n\ | |
3479 | \n\ | |
3480 | Usage: select-frame function NAME"), | |
3481 | &select_frame_cmd_list, | |
3482 | &cli_suppress_notification.user_selected_context); | |
3483 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3484 | ||
3485 | add_cmd_suppress_notification ("level", class_stack, | |
3486 | &select_frame_cmd.level, _("\ | |
3487 | Select a stack frame by level.\n\ | |
3488 | \n\ | |
3489 | Usage: select-frame level LEVEL"), | |
3490 | &select_frame_cmd_list, | |
3491 | &cli_suppress_notification.user_selected_context); | |
3492 | ||
d4c16835 PA |
3493 | const auto backtrace_opts |
3494 | = make_backtrace_options_def_group (nullptr, nullptr, nullptr); | |
3495 | ||
3496 | static std::string backtrace_help | |
8abfcabc | 3497 | = gdb::option::build_help (_("\ |
1bedd215 | 3498 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ |
d4c16835 PA |
3499 | Usage: backtrace [OPTION]... [QUALIFIER]... [COUNT | -COUNT]\n\ |
3500 | \n\ | |
3501 | Options:\n\ | |
590042fc PW |
3502 | %OPTIONS%\n\ |
3503 | \n\ | |
d4c16835 PA |
3504 | For backward compatibility, the following qualifiers are supported:\n\ |
3505 | \n\ | |
3506 | full - same as -full option.\n\ | |
3507 | no-filters - same as -no-filters option.\n\ | |
3508 | hide - same as -hide.\n\ | |
3509 | \n\ | |
3510 | With a negative COUNT, print outermost -COUNT frames."), | |
3511 | backtrace_opts); | |
3512 | ||
3513 | cmd_list_element *c = add_com ("backtrace", class_stack, | |
3514 | backtrace_command, | |
3515 | backtrace_help.c_str ()); | |
3516 | set_cmd_completer_handle_brkchars (c, backtrace_command_completer); | |
3517 | ||
c906108c | 3518 | add_com_alias ("bt", "backtrace", class_stack, 0); |
c906108c SS |
3519 | |
3520 | add_com_alias ("where", "backtrace", class_alias, 0); | |
3521 | add_info ("stack", backtrace_command, | |
1bedd215 | 3522 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c | 3523 | add_info_alias ("s", "stack", 1); |
f67ffa6a AB |
3524 | |
3525 | add_prefix_cmd ("frame", class_info, &info_frame_cmd.base_command, | |
3526 | _("All about the selected stack frame.\n\ | |
3527 | With no arguments, displays information about the currently selected stack\n\ | |
3528 | frame. Alternatively a frame specification may be provided (See \"frame\")\n\ | |
3529 | the information is then printed about the specified frame."), | |
3530 | &info_frame_cmd_list, "info frame ", 1, &infolist); | |
c906108c | 3531 | add_info_alias ("f", "frame", 1); |
f67ffa6a AB |
3532 | |
3533 | add_cmd ("address", class_stack, &info_frame_cmd.address, | |
3534 | _("\ | |
3535 | Print information about a stack frame selected by stack address.\n\ | |
3536 | \n\ | |
3537 | Usage: info frame address STACK-ADDRESS"), | |
3538 | &info_frame_cmd_list); | |
3539 | ||
3540 | add_cmd ("view", class_stack, &info_frame_cmd.view, | |
3541 | _("\ | |
3542 | Print information about a stack frame outside the current backtrace.\n\ | |
3543 | \n\ | |
3544 | Usage: info frame view STACK-ADDRESS\n\ | |
3545 | info frame view STACK-ADDRESS PC-ADDRESS"), | |
3546 | &info_frame_cmd_list); | |
3547 | ||
3548 | cmd = add_cmd ("function", class_stack, &info_frame_cmd.function, | |
3549 | _("\ | |
3550 | Print information about a stack frame selected by function name.\n\ | |
3551 | \n\ | |
3552 | Usage: info frame function NAME"), | |
3553 | &info_frame_cmd_list); | |
3554 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3555 | ||
3556 | add_cmd ("level", class_stack, &info_frame_cmd.level, | |
3557 | _("\ | |
3558 | Print information about a stack frame selected by level.\n\ | |
3559 | \n\ | |
3560 | Usage: info frame level LEVEL"), | |
3561 | &info_frame_cmd_list); | |
3562 | ||
60cfcb20 AB |
3563 | cmd = add_info ("locals", info_locals_command, |
3564 | info_print_args_help (_("\ | |
12615cba PW |
3565 | All local variables of current stack frame or those matching REGEXPs.\n\ |
3566 | Usage: info locals [-q] [-t TYPEREGEXP] [NAMEREGEXP]\n\ | |
3567 | Prints the local variables of the current stack frame.\n"), | |
4acfdd20 AB |
3568 | _("local variables"), |
3569 | false)); | |
60cfcb20 AB |
3570 | set_cmd_completer_handle_brkchars (cmd, info_print_command_completer); |
3571 | cmd = add_info ("args", info_args_command, | |
3572 | info_print_args_help (_("\ | |
12615cba PW |
3573 | All argument variables of current stack frame or those matching REGEXPs.\n\ |
3574 | Usage: info args [-q] [-t TYPEREGEXP] [NAMEREGEXP]\n\ | |
3575 | Prints the argument variables of the current stack frame.\n"), | |
4acfdd20 AB |
3576 | _("argument variables"), |
3577 | false)); | |
60cfcb20 | 3578 | set_cmd_completer_handle_brkchars (cmd, info_print_command_completer); |
c906108c SS |
3579 | |
3580 | if (dbx_commands) | |
1bedd215 | 3581 | add_com ("func", class_stack, func_command, _("\ |
41827fc3 TT |
3582 | Select the stack frame that contains NAME.\n\ |
3583 | Usage: func NAME")); | |
c906108c | 3584 | |
2daf894e PA |
3585 | /* Install "set print raw frame-arguments", a deprecated spelling of |
3586 | "set print raw-frame-arguments". */ | |
d4c16835 PA |
3587 | cmd = add_setshow_boolean_cmd |
3588 | ("frame-arguments", no_class, | |
3589 | &user_frame_print_options.print_raw_frame_arguments, | |
3590 | _("\ | |
2daf894e PA |
3591 | Set whether to print frame arguments in raw form."), _("\ |
3592 | Show whether to print frame arguments in raw form."), _("\ | |
3593 | If set, frame arguments are printed in raw form, bypassing any\n\ | |
3594 | pretty-printers for that value."), | |
d4c16835 PA |
3595 | NULL, NULL, |
3596 | &setprintrawlist, &showprintrawlist); | |
2daf894e PA |
3597 | deprecate_cmd (cmd, "set print raw-frame-arguments"); |
3598 | ||
30c33a9f HZ |
3599 | add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack, |
3600 | &disassemble_next_line, _("\ | |
3e43a32a MS |
3601 | Set whether to disassemble next source line or insn when execution stops."), |
3602 | _("\ | |
3603 | Show whether to disassemble next source line or insn when execution stops."), | |
3604 | _("\ | |
80a0ea0f EZ |
3605 | If ON, GDB will display disassembly of the next source line, in addition\n\ |
3606 | to displaying the source line itself. If the next source line cannot\n\ | |
3607 | be displayed (e.g., source is unavailable or there's no line info), GDB\n\ | |
3608 | will display disassembly of next instruction instead of showing the\n\ | |
3609 | source line.\n\ | |
3610 | If AUTO, display disassembly of next instruction only if the source line\n\ | |
3611 | cannot be displayed.\n\ | |
3612 | If OFF (which is the default), never display the disassembly of the next\n\ | |
3613 | source line."), | |
30c33a9f HZ |
3614 | NULL, |
3615 | show_disassemble_next_line, | |
3616 | &setlist, &showlist); | |
a362e3d3 | 3617 | disassemble_next_line = AUTO_BOOLEAN_FALSE; |
e18b2753 | 3618 | |
d4c16835 PA |
3619 | gdb::option::add_setshow_cmds_for_options |
3620 | (class_stack, &user_frame_print_options, | |
3621 | frame_print_option_defs, &setprintlist, &showprintlist); | |
c906108c | 3622 | } |