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c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
1d506c26 | 3 | Copyright (C) 1986-2024 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 | |
e5dc0d5d | 20 | #include "event-top.h" |
ec452525 | 21 | #include "extract-store-integer.h" |
c906108c SS |
22 | #include "value.h" |
23 | #include "symtab.h" | |
24 | #include "gdbtypes.h" | |
25 | #include "expression.h" | |
26 | #include "language.h" | |
27 | #include "frame.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "gdbcore.h" | |
30 | #include "target.h" | |
0378c332 | 31 | #include "source.h" |
c906108c SS |
32 | #include "breakpoint.h" |
33 | #include "demangle.h" | |
34 | #include "inferior.h" | |
35 | #include "annotate.h" | |
8b93c638 | 36 | #include "ui-out.h" |
fe898f56 | 37 | #include "block.h" |
b9362cc7 | 38 | #include "stack.h" |
de4f826b | 39 | #include "dictionary.h" |
898c62f5 | 40 | #include "reggroups.h" |
fc70c2a0 | 41 | #include "regcache.h" |
a77053c2 | 42 | #include "solib.h" |
033a42c2 | 43 | #include "valprint.h" |
8ea051c5 | 44 | #include "gdbthread.h" |
3567439c | 45 | #include "cp-support.h" |
30c33a9f | 46 | #include "disasm.h" |
edb3359d | 47 | #include "inline-frame.h" |
f8eba3c6 | 48 | #include "linespec.h" |
529480d0 | 49 | #include "cli/cli-utils.h" |
77e371c0 | 50 | #include "objfiles.h" |
0d3abd8c | 51 | #include "annotate.h" |
c906108c | 52 | |
ccefe4c4 | 53 | #include "symfile.h" |
6dddc817 | 54 | #include "extension.h" |
76727919 | 55 | #include "observable.h" |
268a13a5 | 56 | #include "gdbsupport/def-vector.h" |
d4c16835 | 57 | #include "cli/cli-option.h" |
e43b10e1 | 58 | #include "cli/cli-style.h" |
7904e961 | 59 | #include "gdbsupport/buildargv.h" |
ccefe4c4 | 60 | |
2421fe6f | 61 | /* The possible choices of "set print frame-arguments", and the value |
88408340 JB |
62 | of this setting. */ |
63 | ||
d4c16835 PA |
64 | const char print_frame_arguments_all[] = "all"; |
65 | const char print_frame_arguments_scalars[] = "scalars"; | |
66 | const char print_frame_arguments_none[] = "none"; | |
4b5e8d19 | 67 | const char print_frame_arguments_presence[] = "presence"; |
88408340 | 68 | |
d4c16835 PA |
69 | static const char *const print_frame_arguments_choices[] = |
70 | { | |
71 | print_frame_arguments_all, | |
72 | print_frame_arguments_scalars, | |
73 | print_frame_arguments_none, | |
4b5e8d19 | 74 | print_frame_arguments_presence, |
d4c16835 PA |
75 | NULL |
76 | }; | |
e7045703 | 77 | |
4b5e8d19 PW |
78 | /* The possible choices of "set print frame-info", and the value |
79 | of this setting. */ | |
80 | ||
81 | const char print_frame_info_auto[] = "auto"; | |
82 | const char print_frame_info_source_line[] = "source-line"; | |
83 | const char print_frame_info_location[] = "location"; | |
84 | const char print_frame_info_source_and_location[] = "source-and-location"; | |
85 | const char print_frame_info_location_and_address[] = "location-and-address"; | |
86 | const char print_frame_info_short_location[] = "short-location"; | |
87 | ||
88 | static const char *const print_frame_info_choices[] = | |
89 | { | |
90 | print_frame_info_auto, | |
91 | print_frame_info_source_line, | |
92 | print_frame_info_location, | |
93 | print_frame_info_source_and_location, | |
94 | print_frame_info_location_and_address, | |
95 | print_frame_info_short_location, | |
96 | NULL | |
97 | }; | |
98 | ||
99 | /* print_frame_info_print_what[i] maps a choice to the corresponding | |
100 | print_what enum. */ | |
6b09f134 | 101 | static const std::optional<enum print_what> print_frame_info_print_what[] = |
4b5e8d19 PW |
102 | {{}, /* Empty value for "auto". */ |
103 | SRC_LINE, LOCATION, SRC_AND_LOC, LOC_AND_ADDRESS, SHORT_LOCATION}; | |
104 | ||
e18b2753 JK |
105 | /* The possible choices of "set print entry-values", and the value |
106 | of this setting. */ | |
107 | ||
108 | const char print_entry_values_no[] = "no"; | |
109 | const char print_entry_values_only[] = "only"; | |
110 | const char print_entry_values_preferred[] = "preferred"; | |
111 | const char print_entry_values_if_needed[] = "if-needed"; | |
112 | const char print_entry_values_both[] = "both"; | |
113 | const char print_entry_values_compact[] = "compact"; | |
114 | const char print_entry_values_default[] = "default"; | |
40478521 | 115 | static const char *const print_entry_values_choices[] = |
e18b2753 JK |
116 | { |
117 | print_entry_values_no, | |
118 | print_entry_values_only, | |
119 | print_entry_values_preferred, | |
120 | print_entry_values_if_needed, | |
121 | print_entry_values_both, | |
122 | print_entry_values_compact, | |
123 | print_entry_values_default, | |
124 | NULL | |
125 | }; | |
d4c16835 PA |
126 | |
127 | /* See frame.h. */ | |
128 | frame_print_options user_frame_print_options; | |
129 | ||
130 | /* Option definitions for some frame-related "set print ..." | |
131 | settings. */ | |
132 | ||
133 | using boolean_option_def | |
134 | = gdb::option::boolean_option_def<frame_print_options>; | |
135 | using enum_option_def | |
136 | = gdb::option::enum_option_def<frame_print_options>; | |
137 | ||
138 | static const gdb::option::option_def frame_print_option_defs[] = { | |
139 | ||
140 | enum_option_def { | |
141 | "entry-values", | |
142 | print_entry_values_choices, | |
143 | [] (frame_print_options *opt) { return &opt->print_entry_values; }, | |
144 | NULL, /* show_cmd_cb */ | |
590042fc PW |
145 | N_("Set printing of function arguments at function entry."), |
146 | N_("Show printing of function arguments at function entry."), | |
d4c16835 PA |
147 | N_("GDB can sometimes determine the values of function arguments at entry,\n\ |
148 | in addition to their current values. This option tells GDB whether\n\ | |
149 | to print the current value, the value at entry (marked as val@entry),\n\ | |
150 | or both. Note that one or both of these values may be <optimized out>."), | |
151 | }, | |
152 | ||
153 | enum_option_def { | |
154 | "frame-arguments", | |
155 | print_frame_arguments_choices, | |
156 | [] (frame_print_options *opt) { return &opt->print_frame_arguments; }, | |
157 | NULL, /* show_cmd_cb */ | |
590042fc PW |
158 | N_("Set printing of non-scalar frame arguments."), |
159 | N_("Show printing of non-scalar frame arguments."), | |
d4c16835 PA |
160 | NULL /* help_doc */ |
161 | }, | |
162 | ||
163 | boolean_option_def { | |
164 | "raw-frame-arguments", | |
165 | [] (frame_print_options *opt) { return &opt->print_raw_frame_arguments; }, | |
166 | NULL, /* show_cmd_cb */ | |
167 | N_("Set whether to print frame arguments in raw form."), | |
168 | N_("Show whether to print frame arguments in raw form."), | |
169 | N_("If set, frame arguments are printed in raw form, bypassing any\n\ | |
170 | pretty-printers for that value.") | |
171 | }, | |
4b5e8d19 PW |
172 | |
173 | enum_option_def { | |
174 | "frame-info", | |
175 | print_frame_info_choices, | |
176 | [] (frame_print_options *opt) { return &opt->print_frame_info; }, | |
177 | NULL, /* show_cmd_cb */ | |
178 | N_("Set printing of frame information."), | |
179 | N_("Show printing of frame information."), | |
180 | NULL /* help_doc */ | |
181 | } | |
182 | ||
d4c16835 PA |
183 | }; |
184 | ||
185 | /* Options for the "backtrace" command. */ | |
186 | ||
187 | struct backtrace_cmd_options | |
188 | { | |
491144b5 CB |
189 | bool full = false; |
190 | bool no_filters = false; | |
191 | bool hide = false; | |
d4c16835 PA |
192 | }; |
193 | ||
194 | using bt_flag_option_def | |
195 | = gdb::option::flag_option_def<backtrace_cmd_options>; | |
196 | ||
197 | static const gdb::option::option_def backtrace_command_option_defs[] = { | |
198 | bt_flag_option_def { | |
199 | "full", | |
200 | [] (backtrace_cmd_options *opt) { return &opt->full; }, | |
201 | N_("Print values of local variables.") | |
202 | }, | |
203 | ||
204 | bt_flag_option_def { | |
205 | "no-filters", | |
206 | [] (backtrace_cmd_options *opt) { return &opt->no_filters; }, | |
207 | N_("Prohibit frame filters from executing on a backtrace."), | |
208 | }, | |
209 | ||
210 | bt_flag_option_def { | |
211 | "hide", | |
212 | [] (backtrace_cmd_options *opt) { return &opt->hide; }, | |
213 | N_("Causes Python frame filter elided frames to not be printed."), | |
214 | }, | |
215 | }; | |
e18b2753 | 216 | |
c378eb4e | 217 | /* Prototypes for local functions. */ |
c906108c | 218 | |
8480a37e | 219 | static void print_frame_local_vars (const frame_info_ptr &frame, |
12615cba PW |
220 | bool quiet, |
221 | const char *regexp, const char *t_regexp, | |
222 | int num_tabs, struct ui_file *stream); | |
c906108c | 223 | |
519d6343 AM |
224 | static void print_frame (struct ui_out *uiout, |
225 | const frame_print_options &opts, | |
8480a37e | 226 | const frame_info_ptr &frame, int print_level, |
033a42c2 | 227 | enum print_what print_what, int print_args, |
c5394b80 JM |
228 | struct symtab_and_line sal); |
229 | ||
bd2b40ac TT |
230 | static frame_info_ptr find_frame_for_function (const char *); |
231 | static frame_info_ptr find_frame_for_address (CORE_ADDR); | |
f67ffa6a | 232 | |
eb2dd8df AB |
233 | /* Class used to manage tracking the last symtab we displayed. */ |
234 | ||
235 | class last_displayed_symtab_info_type | |
236 | { | |
237 | public: | |
238 | /* True if the cached information is valid. */ | |
239 | bool is_valid () const | |
240 | { return m_valid; } | |
241 | ||
242 | /* Return the cached program_space. If the cache is invalid nullptr is | |
243 | returned. */ | |
244 | struct program_space *pspace () const | |
245 | { return m_pspace; } | |
246 | ||
247 | /* Return the cached CORE_ADDR address. If the cache is invalid 0 is | |
248 | returned. */ | |
249 | CORE_ADDR address () const | |
250 | { return m_address; } | |
251 | ||
252 | /* Return the cached symtab. If the cache is invalid nullptr is | |
253 | returned. */ | |
254 | struct symtab *symtab () const | |
255 | { return m_symtab; } | |
256 | ||
257 | /* Return the cached line number. If the cache is invalid 0 is | |
258 | returned. */ | |
259 | int line () const | |
260 | { return m_line; } | |
261 | ||
262 | /* Invalidate the cache, reset all the members to their default value. */ | |
263 | void invalidate () | |
264 | { | |
265 | m_valid = false; | |
266 | m_pspace = nullptr; | |
267 | m_address = 0; | |
268 | m_symtab = nullptr; | |
269 | m_line = 0; | |
270 | } | |
271 | ||
272 | /* Store a new set of values in the cache. */ | |
273 | void set (struct program_space *pspace, CORE_ADDR address, | |
274 | struct symtab *symtab, int line) | |
275 | { | |
276 | gdb_assert (pspace != nullptr); | |
277 | ||
278 | m_valid = true; | |
279 | m_pspace = pspace; | |
280 | m_address = address; | |
281 | m_symtab = symtab; | |
282 | m_line = line; | |
283 | } | |
284 | ||
285 | private: | |
286 | /* True when the cache is valid. */ | |
287 | bool m_valid = false; | |
288 | ||
289 | /* The last program space displayed. */ | |
290 | struct program_space *m_pspace = nullptr; | |
291 | ||
292 | /* The last address displayed. */ | |
293 | CORE_ADDR m_address = 0; | |
294 | ||
295 | /* The last symtab displayed. */ | |
296 | struct symtab *m_symtab = nullptr; | |
297 | ||
298 | /* The last line number displayed. */ | |
299 | int m_line = 0; | |
300 | }; | |
301 | ||
302 | /* An actual instance of the cache, holds information about the last symtab | |
303 | displayed. */ | |
304 | static last_displayed_symtab_info_type last_displayed_symtab_info; | |
305 | ||
c906108c | 306 | \f |
c5aa993b | 307 | |
4b5e8d19 | 308 | /* See stack.h. */ |
edb3359d | 309 | |
62137775 | 310 | bool |
8480a37e | 311 | frame_show_address (const frame_info_ptr &frame, |
edb3359d DJ |
312 | struct symtab_and_line sal) |
313 | { | |
314 | /* If there is a line number, but no PC, then there is no location | |
315 | information associated with this sal. The only way that should | |
316 | happen is for the call sites of inlined functions (SAL comes from | |
317 | find_frame_sal). Otherwise, we would have some PC range if the | |
318 | SAL came from a line table. */ | |
319 | if (sal.line != 0 && sal.pc == 0 && sal.end == 0) | |
320 | { | |
321 | if (get_next_frame (frame) == NULL) | |
00431a78 | 322 | gdb_assert (inline_skipped_frames (inferior_thread ()) > 0); |
edb3359d DJ |
323 | else |
324 | gdb_assert (get_frame_type (get_next_frame (frame)) == INLINE_FRAME); | |
62137775 | 325 | return false; |
edb3359d DJ |
326 | } |
327 | ||
8c95582d | 328 | return get_frame_pc (frame) != sal.pc || !sal.is_stmt; |
edb3359d DJ |
329 | } |
330 | ||
4034d0ff AT |
331 | /* See frame.h. */ |
332 | ||
333 | void | |
8480a37e | 334 | print_stack_frame_to_uiout (struct ui_out *uiout, const frame_info_ptr &frame, |
4034d0ff AT |
335 | int print_level, enum print_what print_what, |
336 | int set_current_sal) | |
337 | { | |
67ad9399 | 338 | scoped_restore save_uiout = make_scoped_restore (¤t_uiout, uiout); |
4034d0ff AT |
339 | |
340 | print_stack_frame (frame, print_level, print_what, set_current_sal); | |
4034d0ff AT |
341 | } |
342 | ||
f9acce4a | 343 | /* Show or print a stack frame FRAME briefly. The output is formatted |
d762c46a AC |
344 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
345 | relative level, function name, argument list, and file name and | |
346 | line number. If the frame's PC is not at the beginning of the | |
347 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
348 | |
349 | void | |
8480a37e | 350 | print_stack_frame (const frame_info_ptr &frame, int print_level, |
08d72866 PA |
351 | enum print_what print_what, |
352 | int set_current_sal) | |
c906108c | 353 | { |
c906108c | 354 | |
85102364 | 355 | /* For mi, always print location and address. */ |
112e8700 | 356 | if (current_uiout->is_mi_like_p ()) |
311b5970 | 357 | print_what = LOC_AND_ADDRESS; |
c906108c | 358 | |
a70b8144 | 359 | try |
311b5970 | 360 | { |
d4c16835 PA |
361 | print_frame_info (user_frame_print_options, |
362 | frame, print_level, print_what, 1 /* print_args */, | |
08d72866 PA |
363 | set_current_sal); |
364 | if (set_current_sal) | |
5166082f | 365 | set_current_sal_from_frame (frame); |
311b5970 | 366 | } |
230d2906 | 367 | catch (const gdb_exception_error &e) |
492d29ea PA |
368 | { |
369 | } | |
311b5970 | 370 | } |
c906108c | 371 | |
033a42c2 MK |
372 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
373 | the offset of the first nameless argument, and NUM is the number of | |
374 | nameless arguments to print. FIRST is nonzero if this is the first | |
375 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
376 | |
377 | static void | |
8480a37e | 378 | print_frame_nameless_args (const frame_info_ptr &frame, long start, int num, |
8d3b0994 AC |
379 | int first, struct ui_file *stream) |
380 | { | |
e17a4113 UW |
381 | struct gdbarch *gdbarch = get_frame_arch (frame); |
382 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
8d3b0994 AC |
383 | int i; |
384 | CORE_ADDR argsaddr; | |
385 | long arg_value; | |
386 | ||
387 | for (i = 0; i < num; i++) | |
388 | { | |
389 | QUIT; | |
033a42c2 | 390 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
391 | if (!argsaddr) |
392 | return; | |
e17a4113 UW |
393 | arg_value = read_memory_integer (argsaddr + start, |
394 | sizeof (int), byte_order); | |
8d3b0994 | 395 | if (!first) |
6cb06a8c TT |
396 | gdb_printf (stream, ", "); |
397 | gdb_printf (stream, "%ld", arg_value); | |
8d3b0994 AC |
398 | first = 0; |
399 | start += sizeof (int); | |
400 | } | |
401 | } | |
402 | ||
93d86cef JK |
403 | /* Print single argument of inferior function. ARG must be already |
404 | read in. | |
405 | ||
406 | Errors are printed as if they would be the parameter value. Use zeroed ARG | |
85102364 | 407 | iff it should not be printed according to user settings. */ |
93d86cef JK |
408 | |
409 | static void | |
d4c16835 PA |
410 | print_frame_arg (const frame_print_options &fp_opts, |
411 | const struct frame_arg *arg) | |
93d86cef JK |
412 | { |
413 | struct ui_out *uiout = current_uiout; | |
93d86cef | 414 | |
d7e74731 | 415 | string_file stb; |
93d86cef JK |
416 | |
417 | gdb_assert (!arg->val || !arg->error); | |
e18b2753 JK |
418 | gdb_assert (arg->entry_kind == print_entry_values_no |
419 | || arg->entry_kind == print_entry_values_only | |
112e8700 | 420 | || (!uiout->is_mi_like_p () |
e18b2753 | 421 | && arg->entry_kind == print_entry_values_compact)); |
93d86cef | 422 | |
46b9c129 TT |
423 | annotate_arg_emitter arg_emitter; |
424 | ui_out_emit_tuple tuple_emitter (uiout, NULL); | |
0426ad51 | 425 | gdb_puts (arg->sym->print_name (), &stb); |
e18b2753 JK |
426 | if (arg->entry_kind == print_entry_values_compact) |
427 | { | |
428 | /* It is OK to provide invalid MI-like stream as with | |
429 | PRINT_ENTRY_VALUE_COMPACT we never use MI. */ | |
d7e74731 | 430 | stb.puts ("="); |
e18b2753 | 431 | |
0426ad51 | 432 | gdb_puts (arg->sym->print_name (), &stb); |
e18b2753 JK |
433 | } |
434 | if (arg->entry_kind == print_entry_values_only | |
435 | || arg->entry_kind == print_entry_values_compact) | |
d7e74731 | 436 | stb.puts ("@entry"); |
e43b10e1 | 437 | uiout->field_stream ("name", stb, variable_name_style.style ()); |
93d86cef | 438 | annotate_arg_name_end (); |
112e8700 | 439 | uiout->text ("="); |
93d86cef | 440 | |
7f6aba03 | 441 | ui_file_style style; |
93d86cef | 442 | if (!arg->val && !arg->error) |
112e8700 | 443 | uiout->text ("..."); |
93d86cef JK |
444 | else |
445 | { | |
446 | if (arg->error) | |
7f6aba03 TT |
447 | { |
448 | stb.printf (_("<error reading variable: %s>"), arg->error.get ()); | |
449 | style = metadata_style.style (); | |
450 | } | |
93d86cef JK |
451 | else |
452 | { | |
a70b8144 | 453 | try |
93d86cef JK |
454 | { |
455 | const struct language_defn *language; | |
d4c16835 | 456 | struct value_print_options vp_opts; |
93d86cef JK |
457 | |
458 | /* Avoid value_print because it will deref ref parameters. We | |
459 | just want to print their addresses. Print ??? for args whose | |
460 | address we do not know. We pass 2 as "recurse" to val_print | |
461 | because our standard indentation here is 4 spaces, and | |
462 | val_print indents 2 for each recurse. */ | |
463 | ||
d0c97917 | 464 | annotate_arg_value (arg->val->type ()); |
93d86cef JK |
465 | |
466 | /* Use the appropriate language to display our symbol, unless the | |
467 | user forced the language to a specific language. */ | |
468 | if (language_mode == language_mode_auto) | |
c1b5c1eb | 469 | language = language_def (arg->sym->language ()); |
93d86cef JK |
470 | else |
471 | language = current_language; | |
472 | ||
d4c16835 | 473 | get_no_prettyformat_print_options (&vp_opts); |
dad6b350 | 474 | vp_opts.deref_ref = true; |
d4c16835 | 475 | vp_opts.raw = fp_opts.print_raw_frame_arguments; |
93d86cef JK |
476 | |
477 | /* True in "summary" mode, false otherwise. */ | |
d4c16835 PA |
478 | vp_opts.summary |
479 | = fp_opts.print_frame_arguments == print_frame_arguments_scalars; | |
93d86cef | 480 | |
c2a44efe | 481 | common_val_print_checked (arg->val, &stb, 2, &vp_opts, language); |
93d86cef | 482 | } |
230d2906 | 483 | catch (const gdb_exception_error &except) |
492d29ea | 484 | { |
3d6e9d23 TT |
485 | stb.printf (_("<error reading variable: %s>"), |
486 | except.what ()); | |
7f6aba03 | 487 | style = metadata_style.style (); |
492d29ea | 488 | } |
93d86cef | 489 | } |
93d86cef JK |
490 | } |
491 | ||
7f6aba03 | 492 | uiout->field_stream ("value", stb, style); |
93d86cef JK |
493 | } |
494 | ||
82a0a75f YQ |
495 | /* Read in inferior function local SYM at FRAME into ARGP. Caller is |
496 | responsible for xfree of ARGP->ERROR. This function never throws an | |
497 | exception. */ | |
498 | ||
499 | void | |
8480a37e | 500 | read_frame_local (struct symbol *sym, const frame_info_ptr &frame, |
82a0a75f YQ |
501 | struct frame_arg *argp) |
502 | { | |
492d29ea PA |
503 | argp->sym = sym; |
504 | argp->val = NULL; | |
505 | argp->error = NULL; | |
506 | ||
a70b8144 | 507 | try |
82a0a75f | 508 | { |
63e43d3a | 509 | argp->val = read_var_value (sym, NULL, frame); |
82a0a75f | 510 | } |
230d2906 | 511 | catch (const gdb_exception_error &except) |
492d29ea | 512 | { |
123cd851 | 513 | argp->error.reset (xstrdup (except.what ())); |
492d29ea | 514 | } |
82a0a75f YQ |
515 | } |
516 | ||
123cd851 TT |
517 | /* Read in inferior function parameter SYM at FRAME into ARGP. This |
518 | function never throws an exception. */ | |
93d86cef JK |
519 | |
520 | void | |
d4c16835 | 521 | read_frame_arg (const frame_print_options &fp_opts, |
8480a37e | 522 | symbol *sym, const frame_info_ptr &frame, |
dda83cd7 | 523 | struct frame_arg *argp, struct frame_arg *entryargp) |
93d86cef | 524 | { |
e18b2753 JK |
525 | struct value *val = NULL, *entryval = NULL; |
526 | char *val_error = NULL, *entryval_error = NULL; | |
527 | int val_equal = 0; | |
93d86cef | 528 | |
d4c16835 PA |
529 | if (fp_opts.print_entry_values != print_entry_values_only |
530 | && fp_opts.print_entry_values != print_entry_values_preferred) | |
e18b2753 | 531 | { |
a70b8144 | 532 | try |
e18b2753 | 533 | { |
63e43d3a | 534 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 535 | } |
230d2906 | 536 | catch (const gdb_exception_error &except) |
e18b2753 | 537 | { |
3d6e9d23 TT |
538 | val_error = (char *) alloca (except.message->size () + 1); |
539 | strcpy (val_error, except.what ()); | |
e18b2753 JK |
540 | } |
541 | } | |
542 | ||
7ae24327 SM |
543 | if (const symbol_computed_ops *computed_ops = sym->computed_ops (); |
544 | (computed_ops != nullptr | |
545 | && computed_ops->read_variable_at_entry != nullptr | |
546 | && fp_opts.print_entry_values != print_entry_values_no | |
547 | && (fp_opts.print_entry_values != print_entry_values_if_needed || !val | |
548 | || val->optimized_out ()))) | |
e18b2753 | 549 | { |
a70b8144 | 550 | try |
e18b2753 | 551 | { |
7ae24327 | 552 | entryval = computed_ops->read_variable_at_entry (sym, frame); |
e18b2753 | 553 | } |
230d2906 | 554 | catch (const gdb_exception_error &except) |
e18b2753 | 555 | { |
492d29ea PA |
556 | if (except.error != NO_ENTRY_VALUE_ERROR) |
557 | { | |
3d6e9d23 TT |
558 | entryval_error = (char *) alloca (except.message->size () + 1); |
559 | strcpy (entryval_error, except.what ()); | |
492d29ea | 560 | } |
e18b2753 JK |
561 | } |
562 | ||
d00664db | 563 | if (entryval != NULL && entryval->optimized_out ()) |
492d29ea | 564 | entryval = NULL; |
e18b2753 | 565 | |
d4c16835 PA |
566 | if (fp_opts.print_entry_values == print_entry_values_compact |
567 | || fp_opts.print_entry_values == print_entry_values_default) | |
e18b2753 JK |
568 | { |
569 | /* For MI do not try to use print_entry_values_compact for ARGP. */ | |
570 | ||
112e8700 | 571 | if (val && entryval && !current_uiout->is_mi_like_p ()) |
e18b2753 | 572 | { |
d0c97917 | 573 | struct type *type = val->type (); |
e18b2753 | 574 | |
3ee3b270 | 575 | if (val->lazy ()) |
78259c36 | 576 | val->fetch_lazy (); |
3ee3b270 | 577 | if (entryval->lazy ()) |
78259c36 | 578 | entryval->fetch_lazy (); |
9a0dc9e3 | 579 | |
02744ba9 | 580 | if (val->contents_eq (0, entryval, 0, type->length ())) |
e18b2753 | 581 | { |
509f0fd9 JK |
582 | /* Initialize it just to avoid a GCC false warning. */ |
583 | struct value *val_deref = NULL, *entryval_deref; | |
a471c594 | 584 | |
216f72a1 | 585 | /* DW_AT_call_value does match with the current |
a471c594 | 586 | value. If it is a reference still try to verify if |
216f72a1 | 587 | dereferenced DW_AT_call_data_value does not differ. */ |
a471c594 | 588 | |
a70b8144 | 589 | try |
a471c594 | 590 | { |
744a8059 | 591 | struct type *type_deref; |
a471c594 JK |
592 | |
593 | val_deref = coerce_ref (val); | |
3ee3b270 | 594 | if (val_deref->lazy ()) |
78259c36 | 595 | val_deref->fetch_lazy (); |
d0c97917 | 596 | type_deref = val_deref->type (); |
a471c594 JK |
597 | |
598 | entryval_deref = coerce_ref (entryval); | |
3ee3b270 | 599 | if (entryval_deref->lazy ()) |
78259c36 | 600 | entryval_deref->fetch_lazy (); |
a471c594 JK |
601 | |
602 | /* If the reference addresses match but dereferenced | |
603 | content does not match print them. */ | |
604 | if (val != val_deref | |
02744ba9 TT |
605 | && val_deref->contents_eq (0, |
606 | entryval_deref, 0, | |
607 | type_deref->length ())) | |
a471c594 JK |
608 | val_equal = 1; |
609 | } | |
230d2906 | 610 | catch (const gdb_exception_error &except) |
492d29ea PA |
611 | { |
612 | /* If the dereferenced content could not be | |
613 | fetched do not display anything. */ | |
614 | if (except.error == NO_ENTRY_VALUE_ERROR) | |
615 | val_equal = 1; | |
616 | else if (except.message != NULL) | |
617 | { | |
3d6e9d23 TT |
618 | entryval_error |
619 | = (char *) alloca (except.message->size () + 1); | |
620 | strcpy (entryval_error, except.what ()); | |
492d29ea PA |
621 | } |
622 | } | |
a471c594 JK |
623 | |
624 | /* Value was not a reference; and its content matches. */ | |
625 | if (val == val_deref) | |
626 | val_equal = 1; | |
a471c594 JK |
627 | |
628 | if (val_equal) | |
629 | entryval = NULL; | |
e18b2753 JK |
630 | } |
631 | } | |
632 | ||
633 | /* Try to remove possibly duplicate error message for ENTRYARGP even | |
634 | in MI mode. */ | |
635 | ||
636 | if (val_error && entryval_error | |
637 | && strcmp (val_error, entryval_error) == 0) | |
638 | { | |
639 | entryval_error = NULL; | |
640 | ||
641 | /* Do not se VAL_EQUAL as the same error message may be shown for | |
642 | the entry value even if no entry values are present in the | |
643 | inferior. */ | |
644 | } | |
645 | } | |
646 | } | |
647 | ||
648 | if (entryval == NULL) | |
93d86cef | 649 | { |
d4c16835 | 650 | if (fp_opts.print_entry_values == print_entry_values_preferred) |
e18b2753 | 651 | { |
492d29ea PA |
652 | gdb_assert (val == NULL); |
653 | ||
a70b8144 | 654 | try |
e18b2753 | 655 | { |
63e43d3a | 656 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 657 | } |
230d2906 | 658 | catch (const gdb_exception_error &except) |
e18b2753 | 659 | { |
3d6e9d23 TT |
660 | val_error = (char *) alloca (except.message->size () + 1); |
661 | strcpy (val_error, except.what ()); | |
e18b2753 JK |
662 | } |
663 | } | |
d4c16835 PA |
664 | if (fp_opts.print_entry_values == print_entry_values_only |
665 | || fp_opts.print_entry_values == print_entry_values_both | |
666 | || (fp_opts.print_entry_values == print_entry_values_preferred | |
d00664db | 667 | && (!val || val->optimized_out ()))) |
1ed8d800 | 668 | { |
b27556e3 | 669 | entryval = value::allocate_optimized_out (sym->type ()); |
1ed8d800 YQ |
670 | entryval_error = NULL; |
671 | } | |
93d86cef | 672 | } |
d4c16835 PA |
673 | if ((fp_opts.print_entry_values == print_entry_values_compact |
674 | || fp_opts.print_entry_values == print_entry_values_if_needed | |
675 | || fp_opts.print_entry_values == print_entry_values_preferred) | |
d00664db | 676 | && (!val || val->optimized_out ()) && entryval != NULL) |
93d86cef | 677 | { |
e18b2753 JK |
678 | val = NULL; |
679 | val_error = NULL; | |
93d86cef JK |
680 | } |
681 | ||
682 | argp->sym = sym; | |
683 | argp->val = val; | |
123cd851 | 684 | argp->error.reset (val_error ? xstrdup (val_error) : NULL); |
e18b2753 JK |
685 | if (!val && !val_error) |
686 | argp->entry_kind = print_entry_values_only; | |
d4c16835 PA |
687 | else if ((fp_opts.print_entry_values == print_entry_values_compact |
688 | || fp_opts.print_entry_values == print_entry_values_default) | |
689 | && val_equal) | |
e18b2753 JK |
690 | { |
691 | argp->entry_kind = print_entry_values_compact; | |
112e8700 | 692 | gdb_assert (!current_uiout->is_mi_like_p ()); |
e18b2753 JK |
693 | } |
694 | else | |
695 | argp->entry_kind = print_entry_values_no; | |
696 | ||
697 | entryargp->sym = sym; | |
698 | entryargp->val = entryval; | |
123cd851 | 699 | entryargp->error.reset (entryval_error ? xstrdup (entryval_error) : NULL); |
e18b2753 JK |
700 | if (!entryval && !entryval_error) |
701 | entryargp->entry_kind = print_entry_values_no; | |
702 | else | |
703 | entryargp->entry_kind = print_entry_values_only; | |
93d86cef JK |
704 | } |
705 | ||
033a42c2 MK |
706 | /* Print the arguments of frame FRAME on STREAM, given the function |
707 | FUNC running in that frame (as a symbol), where NUM is the number | |
708 | of arguments according to the stack frame (or -1 if the number of | |
709 | arguments is unknown). */ | |
8d3b0994 | 710 | |
e3168615 | 711 | /* Note that currently the "number of arguments according to the |
033a42c2 | 712 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 713 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
714 | |
715 | static void | |
d4c16835 | 716 | print_frame_args (const frame_print_options &fp_opts, |
8480a37e | 717 | struct symbol *func, const frame_info_ptr &frame, |
033a42c2 | 718 | int num, struct ui_file *stream) |
8d3b0994 | 719 | { |
79a45e25 | 720 | struct ui_out *uiout = current_uiout; |
8d3b0994 | 721 | int first = 1; |
8d3b0994 | 722 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
723 | at the highest offset, or -1 if we haven't come to a stack |
724 | argument yet. */ | |
8d3b0994 | 725 | long highest_offset = -1; |
8d3b0994 AC |
726 | /* Number of ints of arguments that we have printed so far. */ |
727 | int args_printed = 0; | |
4b5e8d19 PW |
728 | /* True if we should print arg names. If false, we only indicate |
729 | the presence of arguments by printing ellipsis. */ | |
730 | bool print_names | |
731 | = fp_opts.print_frame_arguments != print_frame_arguments_presence; | |
a6bac58e | 732 | /* True if we should print arguments, false otherwise. */ |
d4c16835 | 733 | bool print_args |
4b5e8d19 PW |
734 | = (print_names |
735 | && fp_opts.print_frame_arguments != print_frame_arguments_none); | |
8d3b0994 | 736 | |
8d3b0994 AC |
737 | if (func) |
738 | { | |
4aeddc50 | 739 | const struct block *b = func->value_block (); |
8d3b0994 | 740 | |
548a89df | 741 | for (struct symbol *sym : block_iterator_range (b)) |
dda83cd7 | 742 | { |
e18b2753 | 743 | struct frame_arg arg, entryarg; |
93d86cef | 744 | |
8d3b0994 AC |
745 | QUIT; |
746 | ||
747 | /* Keep track of the highest stack argument offset seen, and | |
748 | skip over any kinds of symbols we don't care about. */ | |
749 | ||
d9743061 | 750 | if (!sym->is_argument ()) |
2a2d4dc3 AS |
751 | continue; |
752 | ||
4b5e8d19 PW |
753 | if (!print_names) |
754 | { | |
755 | uiout->text ("..."); | |
756 | first = 0; | |
757 | break; | |
758 | } | |
759 | ||
66d7f48f | 760 | switch (sym->aclass ()) |
8d3b0994 AC |
761 | { |
762 | case LOC_ARG: | |
763 | case LOC_REF_ARG: | |
764 | { | |
4aeddc50 | 765 | long current_offset = sym->value_longest (); |
df86565b | 766 | int arg_size = sym->type ()->length (); |
8d3b0994 AC |
767 | |
768 | /* Compute address of next argument by adding the size of | |
769 | this argument and rounding to an int boundary. */ | |
770 | current_offset = | |
771 | ((current_offset + arg_size + sizeof (int) - 1) | |
772 | & ~(sizeof (int) - 1)); | |
773 | ||
033a42c2 MK |
774 | /* If this is the highest offset seen yet, set |
775 | highest_offset. */ | |
8d3b0994 AC |
776 | if (highest_offset == -1 |
777 | || (current_offset > highest_offset)) | |
778 | highest_offset = current_offset; | |
779 | ||
033a42c2 MK |
780 | /* Add the number of ints we're about to print to |
781 | args_printed. */ | |
8d3b0994 AC |
782 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
783 | } | |
784 | ||
033a42c2 MK |
785 | /* We care about types of symbols, but don't need to |
786 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 787 | case LOC_REGISTER: |
8d3b0994 | 788 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
789 | case LOC_COMPUTED: |
790 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 791 | default: |
2a2d4dc3 | 792 | break; |
8d3b0994 AC |
793 | } |
794 | ||
795 | /* We have to look up the symbol because arguments can have | |
796 | two entries (one a parameter, one a local) and the one we | |
797 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 798 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
799 | small structure and gcc2 when the argument type is float |
800 | and it is passed as a double and converted to float by | |
801 | the prologue (in the latter case the type of the LOC_ARG | |
802 | symbol is double and the type of the LOC_LOCAL symbol is | |
803 | float). */ | |
033a42c2 MK |
804 | /* But if the parameter name is null, don't try it. Null |
805 | parameter names occur on the RS/6000, for traceback | |
806 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 807 | |
987012b8 | 808 | if (*sym->linkage_name ()) |
8d3b0994 AC |
809 | { |
810 | struct symbol *nsym; | |
433759f7 | 811 | |
987012b8 | 812 | nsym = lookup_symbol_search_name (sym->search_name (), |
ccf41c24 | 813 | b, SEARCH_VAR_DOMAIN).symbol; |
55765a25 | 814 | gdb_assert (nsym != NULL); |
66d7f48f | 815 | if (nsym->aclass () == LOC_REGISTER |
d9743061 | 816 | && !nsym->is_argument ()) |
8d3b0994 | 817 | { |
033a42c2 MK |
818 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
819 | that it was passed on the stack and loaded into a | |
820 | register, or passed in a register and stored in a | |
821 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
822 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
823 | |
824 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
825 | |
826 | (1) Because find_saved_registers may be slow for | |
dda83cd7 | 827 | remote debugging. |
033a42c2 MK |
828 | |
829 | (2) Because registers are often re-used and stack | |
dda83cd7 SM |
830 | slots rarely (never?) are. Therefore using |
831 | the stack slot is much less likely to print | |
832 | garbage. | |
8d3b0994 AC |
833 | |
834 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
835 | |
836 | (1) So that the backtrace prints the same value | |
dda83cd7 SM |
837 | as "print foo". I see no compelling reason |
838 | why this needs to be the case; having the | |
839 | backtrace print the value which was passed | |
840 | in, and "print foo" print the value as | |
841 | modified within the called function, makes | |
842 | perfect sense to me. | |
033a42c2 MK |
843 | |
844 | Additional note: It might be nice if "info args" | |
845 | displayed both values. | |
846 | ||
847 | One more note: There is a case with SPARC | |
848 | structure passing where we need to use the | |
849 | LOC_REGISTER, but this is dealt with by creating | |
850 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
851 | |
852 | /* Leave sym (the LOC_ARG) alone. */ | |
853 | ; | |
854 | } | |
855 | else | |
856 | sym = nsym; | |
857 | } | |
858 | ||
859 | /* Print the current arg. */ | |
860 | if (!first) | |
112e8700 | 861 | uiout->text (", "); |
6c92c339 | 862 | uiout->wrap_hint (4); |
8d3b0994 | 863 | |
93d86cef JK |
864 | if (!print_args) |
865 | { | |
93d86cef | 866 | arg.sym = sym; |
e18b2753 | 867 | arg.entry_kind = print_entry_values_no; |
e18b2753 JK |
868 | entryarg.sym = sym; |
869 | entryarg.entry_kind = print_entry_values_no; | |
93d86cef JK |
870 | } |
871 | else | |
d4c16835 | 872 | read_frame_arg (fp_opts, sym, frame, &arg, &entryarg); |
8d3b0994 | 873 | |
e18b2753 | 874 | if (arg.entry_kind != print_entry_values_only) |
d4c16835 | 875 | print_frame_arg (fp_opts, &arg); |
e18b2753 JK |
876 | |
877 | if (entryarg.entry_kind != print_entry_values_no) | |
878 | { | |
879 | if (arg.entry_kind != print_entry_values_only) | |
880 | { | |
112e8700 | 881 | uiout->text (", "); |
6c92c339 | 882 | uiout->wrap_hint (4); |
e18b2753 JK |
883 | } |
884 | ||
d4c16835 | 885 | print_frame_arg (fp_opts, &entryarg); |
e18b2753 | 886 | } |
8d3b0994 | 887 | |
8d3b0994 AC |
888 | first = 0; |
889 | } | |
890 | } | |
891 | ||
892 | /* Don't print nameless args in situations where we don't know | |
893 | enough about the stack to find them. */ | |
894 | if (num != -1) | |
895 | { | |
896 | long start; | |
897 | ||
898 | if (highest_offset == -1) | |
7500260a | 899 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
900 | else |
901 | start = highest_offset; | |
902 | ||
4b5e8d19 PW |
903 | if (!print_names && !first && num > 0) |
904 | uiout->text ("..."); | |
905 | else | |
906 | print_frame_nameless_args (frame, start, num - args_printed, | |
907 | first, stream); | |
8d3b0994 | 908 | } |
8d3b0994 AC |
909 | } |
910 | ||
033a42c2 MK |
911 | /* Set the current source and line to the location given by frame |
912 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
913 | line is in the center of the next 'list'. */ | |
c789492a | 914 | |
7abfe014 | 915 | void |
8480a37e | 916 | set_current_sal_from_frame (const frame_info_ptr &frame) |
c789492a | 917 | { |
51abb421 | 918 | symtab_and_line sal = find_frame_sal (frame); |
5166082f | 919 | if (sal.symtab != NULL) |
51abb421 | 920 | set_current_source_symtab_and_line (sal); |
c789492a FL |
921 | } |
922 | ||
30c33a9f HZ |
923 | /* If ON, GDB will display disassembly of the next source line when |
924 | execution of the program being debugged stops. | |
481df73e HZ |
925 | If AUTO (which is the default), or there's no line info to determine |
926 | the source line of the next instruction, display disassembly of next | |
927 | instruction instead. */ | |
30c33a9f HZ |
928 | |
929 | static enum auto_boolean disassemble_next_line; | |
930 | ||
931 | static void | |
932 | show_disassemble_next_line (struct ui_file *file, int from_tty, | |
933 | struct cmd_list_element *c, | |
934 | const char *value) | |
935 | { | |
6cb06a8c TT |
936 | gdb_printf (file, |
937 | _("Debugger's willingness to use " | |
938 | "disassemble-next-line is %s.\n"), | |
939 | value); | |
30c33a9f HZ |
940 | } |
941 | ||
30c33a9f HZ |
942 | /* Use TRY_CATCH to catch the exception from the gdb_disassembly |
943 | because it will be broken by filter sometime. */ | |
944 | ||
945 | static void | |
13274fc3 UW |
946 | do_gdb_disassembly (struct gdbarch *gdbarch, |
947 | int how_many, CORE_ADDR low, CORE_ADDR high) | |
30c33a9f | 948 | { |
30c33a9f | 949 | |
a70b8144 | 950 | try |
30c33a9f | 951 | { |
7a8eb317 | 952 | gdb_disassembly (gdbarch, current_uiout, |
79a45e25 PA |
953 | DISASSEMBLY_RAW_INSN, how_many, |
954 | low, high); | |
30c33a9f | 955 | } |
230d2906 | 956 | catch (const gdb_exception_error &exception) |
b1d288d3 JK |
957 | { |
958 | /* If an exception was thrown while doing the disassembly, print | |
959 | the error message, to give the user a clue of what happened. */ | |
960 | exception_print (gdb_stderr, exception); | |
961 | } | |
30c33a9f HZ |
962 | } |
963 | ||
4b5e8d19 PW |
964 | /* Converts the PRINT_FRAME_INFO choice to an optional enum print_what. |
965 | Value not present indicates to the caller to use default values | |
966 | specific to the command being executed. */ | |
967 | ||
6b09f134 | 968 | static std::optional<enum print_what> |
4b5e8d19 PW |
969 | print_frame_info_to_print_what (const char *print_frame_info) |
970 | { | |
971 | for (int i = 0; print_frame_info_choices[i] != NULL; i++) | |
972 | if (print_frame_info == print_frame_info_choices[i]) | |
973 | return print_frame_info_print_what[i]; | |
974 | ||
f34652de | 975 | internal_error ("Unexpected print frame-info value `%s'.", |
4b5e8d19 PW |
976 | print_frame_info); |
977 | } | |
978 | ||
aa7ca1bb AH |
979 | /* Print the PC from FRAME, plus any flags, to UIOUT. */ |
980 | ||
981 | static void | |
8480a37e | 982 | print_pc (struct ui_out *uiout, struct gdbarch *gdbarch, const frame_info_ptr &frame, |
aa7ca1bb AH |
983 | CORE_ADDR pc) |
984 | { | |
985 | uiout->field_core_addr ("addr", gdbarch, pc); | |
986 | ||
987 | std::string flags = gdbarch_get_pc_address_flags (gdbarch, frame, pc); | |
988 | if (!flags.empty ()) | |
01add95b SM |
989 | { |
990 | uiout->text (" ["); | |
991 | uiout->field_string ("addr_flags", flags); | |
992 | uiout->text ("]"); | |
993 | } | |
aa7ca1bb AH |
994 | } |
995 | ||
4b5e8d19 PW |
996 | /* See stack.h. */ |
997 | ||
998 | void | |
6b09f134 | 999 | get_user_print_what_frame_info (std::optional<enum print_what> *what) |
4b5e8d19 PW |
1000 | { |
1001 | *what | |
1002 | = print_frame_info_to_print_what | |
dda83cd7 | 1003 | (user_frame_print_options.print_frame_info); |
4b5e8d19 PW |
1004 | } |
1005 | ||
033a42c2 | 1006 | /* Print information about frame FRAME. The output is format according |
4b5e8d19 PW |
1007 | to PRINT_LEVEL and PRINT_WHAT and PRINT_ARGS. For the meaning of |
1008 | PRINT_WHAT, see enum print_what comments in frame.h. | |
405feb71 | 1009 | Note that PRINT_WHAT is overridden if FP_OPTS.print_frame_info |
4b5e8d19 | 1010 | != print_frame_info_auto. |
033a42c2 MK |
1011 | |
1012 | Used in "where" output, and to emit breakpoint or step | |
1013 | messages. */ | |
c906108c | 1014 | |
519d6343 AM |
1015 | static void |
1016 | do_print_frame_info (struct ui_out *uiout, const frame_print_options &fp_opts, | |
8480a37e | 1017 | const frame_info_ptr &frame, int print_level, |
519d6343 AM |
1018 | enum print_what print_what, int print_args, |
1019 | int set_current_sal) | |
c906108c | 1020 | { |
5af949e3 | 1021 | struct gdbarch *gdbarch = get_frame_arch (frame); |
c5394b80 JM |
1022 | int source_print; |
1023 | int location_print; | |
c906108c | 1024 | |
4b5e8d19 PW |
1025 | if (!current_uiout->is_mi_like_p () |
1026 | && fp_opts.print_frame_info != print_frame_info_auto) | |
1027 | { | |
1028 | /* Use the specific frame information desired by the user. */ | |
1029 | print_what = *print_frame_info_to_print_what (fp_opts.print_frame_info); | |
1030 | } | |
1031 | ||
033a42c2 | 1032 | if (get_frame_type (frame) == DUMMY_FRAME |
36f15f55 UW |
1033 | || get_frame_type (frame) == SIGTRAMP_FRAME |
1034 | || get_frame_type (frame) == ARCH_FRAME) | |
c906108c | 1035 | { |
2e783024 | 1036 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); |
c906108c | 1037 | |
033a42c2 | 1038 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
5af949e3 | 1039 | gdbarch, get_frame_pc (frame)); |
6a3fe0a4 | 1040 | |
c906108c | 1041 | /* Do this regardless of SOURCE because we don't have any source |
dda83cd7 | 1042 | to list for this frame. */ |
0faf0076 | 1043 | if (print_level) |
dda83cd7 SM |
1044 | { |
1045 | uiout->text ("#"); | |
1046 | uiout->field_fmt_signed (2, ui_left, "level", | |
381befee | 1047 | frame_relative_level (frame)); |
dda83cd7 | 1048 | } |
112e8700 | 1049 | if (uiout->is_mi_like_p ()) |
dda83cd7 SM |
1050 | { |
1051 | annotate_frame_address (); | |
aa7ca1bb | 1052 | print_pc (uiout, gdbarch, frame, get_frame_pc (frame)); |
dda83cd7 SM |
1053 | annotate_frame_address_end (); |
1054 | } | |
6a3fe0a4 | 1055 | |
033a42c2 | 1056 | if (get_frame_type (frame) == DUMMY_FRAME) |
dda83cd7 SM |
1057 | { |
1058 | annotate_function_call (); | |
1059 | uiout->field_string ("func", "<function called from gdb>", | |
7f6aba03 | 1060 | metadata_style.style ()); |
075559bc | 1061 | } |
033a42c2 | 1062 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
dda83cd7 | 1063 | { |
075559bc | 1064 | annotate_signal_handler_caller (); |
dda83cd7 | 1065 | uiout->field_string ("func", "<signal handler called>", |
7f6aba03 | 1066 | metadata_style.style ()); |
dda83cd7 | 1067 | } |
36f15f55 | 1068 | else if (get_frame_type (frame) == ARCH_FRAME) |
dda83cd7 SM |
1069 | { |
1070 | uiout->field_string ("func", "<cross-architecture call>", | |
7f6aba03 | 1071 | metadata_style.style ()); |
36f15f55 | 1072 | } |
112e8700 | 1073 | uiout->text ("\n"); |
c906108c | 1074 | annotate_frame_end (); |
075559bc | 1075 | |
433e77fa HZ |
1076 | /* If disassemble-next-line is set to auto or on output the next |
1077 | instruction. */ | |
1078 | if (disassemble_next_line == AUTO_BOOLEAN_AUTO | |
1079 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1080 | do_gdb_disassembly (get_frame_arch (frame), 1, | |
1081 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
1082 | ||
c906108c SS |
1083 | return; |
1084 | } | |
1085 | ||
033a42c2 MK |
1086 | /* If FRAME is not the innermost frame, that normally means that |
1087 | FRAME->pc points to *after* the call instruction, and we want to | |
1088 | get the line containing the call, never the next line. But if | |
1089 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
1090 | next frame was not entered as the result of a call, and we want | |
1091 | to get the line containing FRAME->pc. */ | |
51abb421 | 1092 | symtab_and_line sal = find_frame_sal (frame); |
c906108c | 1093 | |
4b5e8d19 PW |
1094 | location_print = (print_what == LOCATION |
1095 | || print_what == SRC_AND_LOC | |
0faf0076 | 1096 | || print_what == LOC_AND_ADDRESS |
4b5e8d19 | 1097 | || print_what == SHORT_LOCATION); |
c5394b80 | 1098 | if (location_print || !sal.symtab) |
519d6343 AM |
1099 | print_frame (uiout, fp_opts, frame, print_level, |
1100 | print_what, print_args, sal); | |
c5394b80 | 1101 | |
0faf0076 | 1102 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 1103 | |
30c33a9f HZ |
1104 | /* If disassemble-next-line is set to auto or on and doesn't have |
1105 | the line debug messages for $pc, output the next instruction. */ | |
1106 | if ((disassemble_next_line == AUTO_BOOLEAN_AUTO | |
1107 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1108 | && source_print && !sal.symtab) | |
13274fc3 UW |
1109 | do_gdb_disassembly (get_frame_arch (frame), 1, |
1110 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
30c33a9f | 1111 | |
c5394b80 JM |
1112 | if (source_print && sal.symtab) |
1113 | { | |
0faf0076 | 1114 | int mid_statement = ((print_what == SRC_LINE) |
edb3359d | 1115 | && frame_show_address (frame, sal)); |
7c13f4e8 AB |
1116 | if (annotation_level > 0 |
1117 | && annotate_source_line (sal.symtab, sal.line, mid_statement, | |
1118 | get_frame_pc (frame))) | |
1119 | { | |
1120 | /* The call to ANNOTATE_SOURCE_LINE already printed the | |
1121 | annotation for this source line, so we avoid the two cases | |
1122 | below and do not print the actual source line. The | |
1123 | documentation for annotations makes it clear that the source | |
1124 | line annotation is printed __instead__ of printing the source | |
1125 | line, not as well as. | |
1126 | ||
1127 | However, if we fail to print the source line, which usually | |
1128 | means either the source file is missing, or the requested | |
1129 | line is out of range of the file, then we don't print the | |
1130 | source annotation, and will pass through the "normal" print | |
1131 | source line code below, the expectation is that this code | |
1132 | will print an appropriate error. */ | |
1133 | } | |
1134 | else if (deprecated_print_frame_info_listing_hook) | |
ec8e2b6d AB |
1135 | deprecated_print_frame_info_listing_hook (sal.symtab, sal.line, |
1136 | sal.line + 1, 0); | |
1137 | else | |
c5394b80 | 1138 | { |
ec8e2b6d AB |
1139 | struct value_print_options opts; |
1140 | ||
1141 | get_user_print_options (&opts); | |
1142 | /* We used to do this earlier, but that is clearly | |
1143 | wrong. This function is used by many different | |
1144 | parts of gdb, including normal_stop in infrun.c, | |
1145 | which uses this to print out the current PC | |
1146 | when we stepi/nexti into the middle of a source | |
1147 | line. Only the command line really wants this | |
1148 | behavior. Other UIs probably would like the | |
1149 | ability to decide for themselves if it is desired. */ | |
1150 | if (opts.addressprint && mid_statement) | |
c5394b80 | 1151 | { |
aa7ca1bb | 1152 | print_pc (uiout, gdbarch, frame, get_frame_pc (frame)); |
ec8e2b6d | 1153 | uiout->text ("\t"); |
c5394b80 | 1154 | } |
30c33a9f | 1155 | |
ec8e2b6d AB |
1156 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); |
1157 | } | |
c5394b80 | 1158 | |
153d79c4 AB |
1159 | /* If disassemble-next-line is set to on and there is line debug |
1160 | messages, output assembly codes for next line. */ | |
1161 | if (disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1162 | do_gdb_disassembly (get_frame_arch (frame), -1, sal.pc, sal.end); | |
1163 | } | |
ec8e2b6d | 1164 | |
08d72866 | 1165 | if (set_current_sal) |
e3eebbd7 PA |
1166 | { |
1167 | CORE_ADDR pc; | |
1168 | ||
1169 | if (get_frame_pc_if_available (frame, &pc)) | |
eb2dd8df | 1170 | last_displayed_symtab_info.set (sal.pspace, pc, sal.symtab, sal.line); |
e3eebbd7 | 1171 | else |
eb2dd8df | 1172 | last_displayed_symtab_info.invalidate (); |
e3eebbd7 | 1173 | } |
c5394b80 JM |
1174 | |
1175 | annotate_frame_end (); | |
1176 | ||
1177 | gdb_flush (gdb_stdout); | |
1178 | } | |
1179 | ||
519d6343 AM |
1180 | /* Redirect output to a temporary buffer for the duration |
1181 | of do_print_frame_info. */ | |
1182 | ||
1183 | void | |
1184 | print_frame_info (const frame_print_options &fp_opts, | |
8480a37e | 1185 | const frame_info_ptr &frame, int print_level, |
519d6343 AM |
1186 | enum print_what print_what, int print_args, |
1187 | int set_current_sal) | |
1188 | { | |
1189 | do_with_buffered_output (do_print_frame_info, current_uiout, | |
1190 | fp_opts, frame, print_level, print_what, | |
1191 | print_args, set_current_sal); | |
1192 | } | |
1193 | ||
eb2dd8df | 1194 | /* See stack.h. */ |
1bfeeb0f JL |
1195 | |
1196 | void | |
1197 | clear_last_displayed_sal (void) | |
1198 | { | |
eb2dd8df | 1199 | last_displayed_symtab_info.invalidate (); |
1bfeeb0f JL |
1200 | } |
1201 | ||
eb2dd8df | 1202 | /* See stack.h. */ |
1bfeeb0f | 1203 | |
eb2dd8df | 1204 | bool |
1bfeeb0f JL |
1205 | last_displayed_sal_is_valid (void) |
1206 | { | |
eb2dd8df | 1207 | return last_displayed_symtab_info.is_valid (); |
1bfeeb0f JL |
1208 | } |
1209 | ||
eb2dd8df | 1210 | /* See stack.h. */ |
1bfeeb0f JL |
1211 | |
1212 | struct program_space * | |
1213 | get_last_displayed_pspace (void) | |
1214 | { | |
eb2dd8df | 1215 | return last_displayed_symtab_info.pspace (); |
1bfeeb0f JL |
1216 | } |
1217 | ||
eb2dd8df | 1218 | /* See stack.h. */ |
1bfeeb0f JL |
1219 | |
1220 | CORE_ADDR | |
1221 | get_last_displayed_addr (void) | |
1222 | { | |
eb2dd8df | 1223 | return last_displayed_symtab_info.address (); |
1bfeeb0f JL |
1224 | } |
1225 | ||
eb2dd8df | 1226 | /* See stack.h. */ |
1bfeeb0f JL |
1227 | |
1228 | struct symtab* | |
1229 | get_last_displayed_symtab (void) | |
1230 | { | |
eb2dd8df | 1231 | return last_displayed_symtab_info.symtab (); |
1bfeeb0f JL |
1232 | } |
1233 | ||
eb2dd8df | 1234 | /* See stack.h. */ |
1bfeeb0f JL |
1235 | |
1236 | int | |
1237 | get_last_displayed_line (void) | |
1238 | { | |
eb2dd8df | 1239 | return last_displayed_symtab_info.line (); |
1bfeeb0f JL |
1240 | } |
1241 | ||
eb2dd8df | 1242 | /* See stack.h. */ |
1bfeeb0f | 1243 | |
51abb421 PA |
1244 | symtab_and_line |
1245 | get_last_displayed_sal () | |
1bfeeb0f | 1246 | { |
51abb421 PA |
1247 | symtab_and_line sal; |
1248 | ||
eb2dd8df | 1249 | if (last_displayed_symtab_info.is_valid ()) |
1bfeeb0f | 1250 | { |
eb2dd8df AB |
1251 | sal.pspace = last_displayed_symtab_info.pspace (); |
1252 | sal.pc = last_displayed_symtab_info.address (); | |
1253 | sal.symtab = last_displayed_symtab_info.symtab (); | |
1254 | sal.line = last_displayed_symtab_info.line (); | |
1bfeeb0f | 1255 | } |
51abb421 PA |
1256 | |
1257 | return sal; | |
1bfeeb0f JL |
1258 | } |
1259 | ||
1260 | ||
c6dc63a1 TT |
1261 | /* Attempt to obtain the name, FUNLANG and optionally FUNCP of the function |
1262 | corresponding to FRAME. */ | |
e9e07ba6 | 1263 | |
c6dc63a1 | 1264 | gdb::unique_xmalloc_ptr<char> |
8480a37e | 1265 | find_frame_funname (const frame_info_ptr &frame, enum language *funlang, |
c6dc63a1 | 1266 | struct symbol **funcp) |
c5394b80 JM |
1267 | { |
1268 | struct symbol *func; | |
c6dc63a1 | 1269 | gdb::unique_xmalloc_ptr<char> funname; |
8b93c638 | 1270 | |
f8f6f20b | 1271 | *funlang = language_unknown; |
e9e07ba6 JK |
1272 | if (funcp) |
1273 | *funcp = NULL; | |
c5394b80 | 1274 | |
edb3359d | 1275 | func = get_frame_function (frame); |
c906108c SS |
1276 | if (func) |
1277 | { | |
987012b8 | 1278 | const char *print_name = func->print_name (); |
033a42c2 | 1279 | |
c1b5c1eb | 1280 | *funlang = func->language (); |
567238c9 KB |
1281 | if (funcp) |
1282 | *funcp = func; | |
1283 | if (*funlang == language_cplus) | |
c906108c | 1284 | { |
987012b8 | 1285 | /* It seems appropriate to use print_name() here, |
567238c9 KB |
1286 | to display the demangled name that we already have |
1287 | stored in the symbol table, but we stored a version | |
1288 | with DMGL_PARAMS turned on, and here we don't want to | |
1289 | display parameters. So remove the parameters. */ | |
1290 | funname = cp_remove_params (print_name); | |
c906108c | 1291 | } |
d10153cf | 1292 | |
567238c9 KB |
1293 | /* If we didn't hit the C++ case above, set *funname |
1294 | here. */ | |
1295 | if (funname == NULL) | |
1296 | funname.reset (xstrdup (print_name)); | |
c906108c SS |
1297 | } |
1298 | else | |
1299 | { | |
7cbd4a93 | 1300 | struct bound_minimal_symbol msymbol; |
e3eebbd7 | 1301 | CORE_ADDR pc; |
033a42c2 | 1302 | |
e3eebbd7 | 1303 | if (!get_frame_address_in_block_if_available (frame, &pc)) |
c6dc63a1 | 1304 | return funname; |
e3eebbd7 PA |
1305 | |
1306 | msymbol = lookup_minimal_symbol_by_pc (pc); | |
7cbd4a93 | 1307 | if (msymbol.minsym != NULL) |
c906108c | 1308 | { |
c9d95fa3 | 1309 | funname.reset (xstrdup (msymbol.minsym->print_name ())); |
c1b5c1eb | 1310 | *funlang = msymbol.minsym->language (); |
c906108c SS |
1311 | } |
1312 | } | |
c6dc63a1 TT |
1313 | |
1314 | return funname; | |
f8f6f20b TJB |
1315 | } |
1316 | ||
1317 | static void | |
519d6343 AM |
1318 | print_frame (struct ui_out *uiout, |
1319 | const frame_print_options &fp_opts, | |
8480a37e | 1320 | const frame_info_ptr &frame, int print_level, |
f8f6f20b TJB |
1321 | enum print_what print_what, int print_args, |
1322 | struct symtab_and_line sal) | |
1323 | { | |
5af949e3 | 1324 | struct gdbarch *gdbarch = get_frame_arch (frame); |
f8f6f20b | 1325 | enum language funlang = language_unknown; |
f8f6f20b | 1326 | struct value_print_options opts; |
e9e07ba6 | 1327 | struct symbol *func; |
e3eebbd7 PA |
1328 | CORE_ADDR pc = 0; |
1329 | int pc_p; | |
1330 | ||
1331 | pc_p = get_frame_pc_if_available (frame, &pc); | |
f8f6f20b | 1332 | |
c6dc63a1 TT |
1333 | gdb::unique_xmalloc_ptr<char> funname |
1334 | = find_frame_funname (frame, &funlang, &func); | |
c906108c | 1335 | |
033a42c2 | 1336 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
e3eebbd7 | 1337 | gdbarch, pc); |
c5394b80 | 1338 | |
76f9c9cf TT |
1339 | { |
1340 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); | |
c5394b80 | 1341 | |
76f9c9cf | 1342 | if (print_level) |
c5394b80 | 1343 | { |
76f9c9cf | 1344 | uiout->text ("#"); |
381befee TT |
1345 | uiout->field_fmt_signed (2, ui_left, "level", |
1346 | frame_relative_level (frame)); | |
c5394b80 | 1347 | } |
76f9c9cf TT |
1348 | get_user_print_options (&opts); |
1349 | if (opts.addressprint) | |
1350 | if (!sal.symtab | |
1351 | || frame_show_address (frame, sal) | |
1352 | || print_what == LOC_AND_ADDRESS) | |
311b5970 | 1353 | { |
76f9c9cf TT |
1354 | annotate_frame_address (); |
1355 | if (pc_p) | |
aa7ca1bb | 1356 | print_pc (uiout, gdbarch, frame, pc); |
76f9c9cf | 1357 | else |
35fb8261 | 1358 | uiout->field_string ("addr", "<unavailable>", |
7f6aba03 | 1359 | metadata_style.style ()); |
76f9c9cf TT |
1360 | annotate_frame_address_end (); |
1361 | uiout->text (" in "); | |
311b5970 | 1362 | } |
76f9c9cf TT |
1363 | annotate_frame_function_name (); |
1364 | ||
1365 | string_file stb; | |
0426ad51 | 1366 | gdb_puts (funname ? funname.get () : "??", &stb); |
e43b10e1 | 1367 | uiout->field_stream ("func", stb, function_name_style.style ()); |
6c92c339 | 1368 | uiout->wrap_hint (3); |
76f9c9cf | 1369 | annotate_frame_args (); |
cbe56571 | 1370 | |
76f9c9cf TT |
1371 | uiout->text (" ("); |
1372 | if (print_args) | |
10f489e5 | 1373 | { |
76f9c9cf TT |
1374 | int numargs; |
1375 | ||
1376 | if (gdbarch_frame_num_args_p (gdbarch)) | |
10f489e5 | 1377 | { |
76f9c9cf TT |
1378 | numargs = gdbarch_frame_num_args (gdbarch, frame); |
1379 | gdb_assert (numargs >= 0); | |
10f489e5 | 1380 | } |
76f9c9cf TT |
1381 | else |
1382 | numargs = -1; | |
1383 | ||
1384 | { | |
1385 | ui_out_emit_list list_emitter (uiout, "args"); | |
a70b8144 | 1386 | try |
76f9c9cf | 1387 | { |
d4c16835 | 1388 | print_frame_args (fp_opts, func, frame, numargs, gdb_stdout); |
76f9c9cf | 1389 | } |
230d2906 | 1390 | catch (const gdb_exception_error &e) |
76f9c9cf TT |
1391 | { |
1392 | } | |
10f489e5 | 1393 | |
76f9c9cf TT |
1394 | /* FIXME: ARGS must be a list. If one argument is a string it |
1395 | will have " that will not be properly escaped. */ | |
1396 | } | |
1397 | QUIT; | |
10f489e5 | 1398 | } |
76f9c9cf | 1399 | uiout->text (")"); |
4b5e8d19 | 1400 | if (print_what != SHORT_LOCATION && sal.symtab) |
76f9c9cf TT |
1401 | { |
1402 | const char *filename_display; | |
1b56eb55 | 1403 | |
76f9c9cf TT |
1404 | filename_display = symtab_to_filename_for_display (sal.symtab); |
1405 | annotate_frame_source_begin (); | |
6c92c339 | 1406 | uiout->wrap_hint (3); |
76f9c9cf TT |
1407 | uiout->text (" at "); |
1408 | annotate_frame_source_file (); | |
e43b10e1 TT |
1409 | uiout->field_string ("file", filename_display, |
1410 | file_name_style.style ()); | |
76f9c9cf TT |
1411 | if (uiout->is_mi_like_p ()) |
1412 | { | |
1413 | const char *fullname = symtab_to_fullname (sal.symtab); | |
433759f7 | 1414 | |
76f9c9cf TT |
1415 | uiout->field_string ("fullname", fullname); |
1416 | } | |
1417 | annotate_frame_source_file_end (); | |
1418 | uiout->text (":"); | |
1419 | annotate_frame_source_line (); | |
381befee | 1420 | uiout->field_signed ("line", sal.line); |
76f9c9cf TT |
1421 | annotate_frame_source_end (); |
1422 | } | |
c906108c | 1423 | |
4b5e8d19 PW |
1424 | if (print_what != SHORT_LOCATION |
1425 | && pc_p && (funname == NULL || sal.symtab == NULL)) | |
76f9c9cf | 1426 | { |
6d08aed3 TT |
1427 | const char *lib |
1428 | = solib_name_from_address (get_frame_program_space (frame), | |
9030a82d | 1429 | get_frame_address_in_block (frame)); |
4d1eb6b4 | 1430 | |
76f9c9cf TT |
1431 | if (lib) |
1432 | { | |
1433 | annotate_frame_where (); | |
6c92c339 | 1434 | uiout->wrap_hint (2); |
76f9c9cf | 1435 | uiout->text (" from "); |
9d636d67 | 1436 | uiout->field_string ("from", lib, file_name_style.style ()); |
76f9c9cf TT |
1437 | } |
1438 | } | |
6d52907e JV |
1439 | if (uiout->is_mi_like_p ()) |
1440 | uiout->field_string ("arch", | |
1441 | (gdbarch_bfd_arch_info (gdbarch))->printable_name); | |
76f9c9cf | 1442 | } |
e514a9d6 | 1443 | |
112e8700 | 1444 | uiout->text ("\n"); |
c906108c SS |
1445 | } |
1446 | \f | |
c5aa993b | 1447 | |
f67ffa6a AB |
1448 | /* Completion function for "frame function", "info frame function", and |
1449 | "select-frame function" commands. */ | |
c906108c | 1450 | |
cb8c24b6 | 1451 | static void |
f67ffa6a AB |
1452 | frame_selection_by_function_completer (struct cmd_list_element *ignore, |
1453 | completion_tracker &tracker, | |
1454 | const char *text, const char *word) | |
c906108c | 1455 | { |
f67ffa6a AB |
1456 | /* This is used to complete function names within a stack. It would be |
1457 | nice if we only offered functions that were actually in the stack. | |
1458 | However, this would mean unwinding the stack to completion, which | |
1459 | could take too long, or on a corrupted stack, possibly not end. | |
1460 | Instead, we offer all symbol names as a safer choice. */ | |
1461 | collect_symbol_completion_matches (tracker, | |
1462 | complete_symbol_mode::EXPRESSION, | |
1463 | symbol_name_match_type::EXPRESSION, | |
1464 | text, word); | |
1c8831c5 AC |
1465 | } |
1466 | ||
f67ffa6a AB |
1467 | /* Core of all the "info frame" sub-commands. Print information about a |
1468 | frame FI. If SELECTED_FRAME_P is true then the user didn't provide a | |
1469 | frame specification, they just entered 'info frame'. If the user did | |
1470 | provide a frame specification (for example 'info frame 0', 'info frame | |
1471 | level 1') then SELECTED_FRAME_P will be false. */ | |
c906108c SS |
1472 | |
1473 | static void | |
8480a37e | 1474 | info_frame_command_core (const frame_info_ptr &fi, bool selected_frame_p) |
c906108c | 1475 | { |
c906108c SS |
1476 | struct symbol *func; |
1477 | struct symtab *s; | |
bd2b40ac | 1478 | frame_info_ptr calling_frame_info; |
167e4384 | 1479 | int numregs; |
0d5cff50 | 1480 | const char *funname = 0; |
c906108c | 1481 | enum language funlang = language_unknown; |
82de1e5b | 1482 | const char *pc_regname; |
7500260a | 1483 | struct gdbarch *gdbarch; |
008f8f2e PA |
1484 | CORE_ADDR frame_pc; |
1485 | int frame_pc_p; | |
e5e6f788 YQ |
1486 | /* Initialize it to avoid "may be used uninitialized" warning. */ |
1487 | CORE_ADDR caller_pc = 0; | |
492d29ea | 1488 | int caller_pc_p = 0; |
c906108c | 1489 | |
12368003 | 1490 | gdbarch = get_frame_arch (fi); |
c906108c | 1491 | |
82de1e5b AC |
1492 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
1493 | is not a good name. */ | |
12368003 | 1494 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1495 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
1496 | easily not match that of the internal value returned by |
1497 | get_frame_pc(). */ | |
12368003 | 1498 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 1499 | else |
3e8c568d | 1500 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
1501 | architectures will often have a hardware register called "pc", |
1502 | and that register's value, again, can easily not match | |
1503 | get_frame_pc(). */ | |
1504 | pc_regname = "pc"; | |
1505 | ||
008f8f2e | 1506 | frame_pc_p = get_frame_pc_if_available (fi, &frame_pc); |
c906108c | 1507 | func = get_frame_function (fi); |
51abb421 | 1508 | symtab_and_line sal = find_frame_sal (fi); |
008f8f2e | 1509 | s = sal.symtab; |
2003f3d8 | 1510 | gdb::unique_xmalloc_ptr<char> func_only; |
c906108c SS |
1511 | if (func) |
1512 | { | |
987012b8 | 1513 | funname = func->print_name (); |
c1b5c1eb | 1514 | funlang = func->language (); |
c5aa993b JM |
1515 | if (funlang == language_cplus) |
1516 | { | |
987012b8 | 1517 | /* It seems appropriate to use print_name() here, |
3567439c DJ |
1518 | to display the demangled name that we already have |
1519 | stored in the symbol table, but we stored a version | |
1520 | with DMGL_PARAMS turned on, and here we don't want to | |
1521 | display parameters. So remove the parameters. */ | |
109483d9 | 1522 | func_only = cp_remove_params (funname); |
433759f7 | 1523 | |
3567439c | 1524 | if (func_only) |
2003f3d8 | 1525 | funname = func_only.get (); |
c5aa993b | 1526 | } |
c906108c | 1527 | } |
008f8f2e | 1528 | else if (frame_pc_p) |
c906108c | 1529 | { |
7cbd4a93 | 1530 | struct bound_minimal_symbol msymbol; |
033a42c2 | 1531 | |
008f8f2e | 1532 | msymbol = lookup_minimal_symbol_by_pc (frame_pc); |
7cbd4a93 | 1533 | if (msymbol.minsym != NULL) |
c906108c | 1534 | { |
c9d95fa3 | 1535 | funname = msymbol.minsym->print_name (); |
c1b5c1eb | 1536 | funlang = msymbol.minsym->language (); |
c906108c SS |
1537 | } |
1538 | } | |
1539 | calling_frame_info = get_prev_frame (fi); | |
1540 | ||
1c8831c5 | 1541 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 1542 | { |
6cb06a8c TT |
1543 | gdb_printf (_("Stack level %d, frame at "), |
1544 | frame_relative_level (fi)); | |
c906108c SS |
1545 | } |
1546 | else | |
1547 | { | |
6cb06a8c | 1548 | gdb_printf (_("Stack frame at ")); |
c906108c | 1549 | } |
0426ad51 | 1550 | gdb_puts (paddress (gdbarch, get_frame_base (fi))); |
6cb06a8c TT |
1551 | gdb_printf (":\n"); |
1552 | gdb_printf (" %s = ", pc_regname); | |
008f8f2e | 1553 | if (frame_pc_p) |
0426ad51 | 1554 | gdb_puts (paddress (gdbarch, get_frame_pc (fi))); |
008f8f2e | 1555 | else |
7f6aba03 | 1556 | fputs_styled ("<unavailable>", metadata_style.style (), gdb_stdout); |
c906108c | 1557 | |
1285ce86 | 1558 | gdb_stdout->wrap_here (3); |
c906108c SS |
1559 | if (funname) |
1560 | { | |
6cb06a8c | 1561 | gdb_printf (" in "); |
0426ad51 | 1562 | gdb_puts (funname); |
c906108c | 1563 | } |
1285ce86 | 1564 | gdb_stdout->wrap_here (3); |
c906108c | 1565 | if (sal.symtab) |
6cb06a8c | 1566 | gdb_printf |
9d636d67 TT |
1567 | (" (%ps:%d)", |
1568 | styled_string (file_name_style.style (), | |
1569 | symtab_to_filename_for_display (sal.symtab)), | |
1570 | sal.line); | |
0426ad51 | 1571 | gdb_puts ("; "); |
1285ce86 | 1572 | gdb_stdout->wrap_here (4); |
6cb06a8c | 1573 | gdb_printf ("saved %s = ", pc_regname); |
782d47df | 1574 | |
a038fa3e | 1575 | if (!frame_id_p (frame_unwind_caller_id (fi))) |
c620c3e4 | 1576 | val_print_not_saved (gdb_stdout); |
a038fa3e | 1577 | else |
782d47df | 1578 | { |
a70b8144 | 1579 | try |
782d47df | 1580 | { |
a038fa3e MM |
1581 | caller_pc = frame_unwind_caller_pc (fi); |
1582 | caller_pc_p = 1; | |
782d47df | 1583 | } |
230d2906 | 1584 | catch (const gdb_exception_error &ex) |
a038fa3e MM |
1585 | { |
1586 | switch (ex.error) | |
1587 | { | |
1588 | case NOT_AVAILABLE_ERROR: | |
1589 | val_print_unavailable (gdb_stdout); | |
1590 | break; | |
1591 | case OPTIMIZED_OUT_ERROR: | |
1592 | val_print_not_saved (gdb_stdout); | |
1593 | break; | |
1594 | default: | |
7f6aba03 TT |
1595 | fprintf_styled (gdb_stdout, metadata_style.style (), |
1596 | _("<error: %s>"), | |
1597 | ex.what ()); | |
a038fa3e MM |
1598 | break; |
1599 | } | |
1600 | } | |
782d47df | 1601 | } |
492d29ea PA |
1602 | |
1603 | if (caller_pc_p) | |
0426ad51 | 1604 | gdb_puts (paddress (gdbarch, caller_pc)); |
6cb06a8c | 1605 | gdb_printf ("\n"); |
c906108c | 1606 | |
55feb689 DJ |
1607 | if (calling_frame_info == NULL) |
1608 | { | |
1609 | enum unwind_stop_reason reason; | |
1610 | ||
1611 | reason = get_frame_unwind_stop_reason (fi); | |
1612 | if (reason != UNWIND_NO_REASON) | |
6cb06a8c TT |
1613 | gdb_printf (_(" Outermost frame: %s\n"), |
1614 | frame_stop_reason_string (fi)); | |
55feb689 | 1615 | } |
111c6489 | 1616 | else if (get_frame_type (fi) == TAILCALL_FRAME) |
0426ad51 | 1617 | gdb_puts (" tail call frame"); |
edb3359d | 1618 | else if (get_frame_type (fi) == INLINE_FRAME) |
6cb06a8c TT |
1619 | gdb_printf (" inlined into frame %d", |
1620 | frame_relative_level (get_prev_frame (fi))); | |
edb3359d | 1621 | else |
c906108c | 1622 | { |
6cb06a8c | 1623 | gdb_printf (" called by frame at "); |
0426ad51 | 1624 | gdb_puts (paddress (gdbarch, get_frame_base (calling_frame_info))); |
c906108c | 1625 | } |
75e3c1f9 | 1626 | if (get_next_frame (fi) && calling_frame_info) |
0426ad51 | 1627 | gdb_puts (","); |
1285ce86 | 1628 | gdb_stdout->wrap_here (3); |
75e3c1f9 | 1629 | if (get_next_frame (fi)) |
c906108c | 1630 | { |
6cb06a8c | 1631 | gdb_printf (" caller of frame at "); |
0426ad51 | 1632 | gdb_puts (paddress (gdbarch, get_frame_base (get_next_frame (fi)))); |
c906108c | 1633 | } |
75e3c1f9 | 1634 | if (get_next_frame (fi) || calling_frame_info) |
0426ad51 | 1635 | gdb_puts ("\n"); |
55feb689 | 1636 | |
c906108c | 1637 | if (s) |
6cb06a8c TT |
1638 | gdb_printf (" source language %s.\n", |
1639 | language_str (s->language ())); | |
c906108c | 1640 | |
c906108c SS |
1641 | { |
1642 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1643 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1644 | /* Number of args for this frame, or -1 if unknown. */ |
1645 | int numargs; | |
1646 | ||
1647 | if (arg_list == 0) | |
6cb06a8c | 1648 | gdb_printf (" Arglist at unknown address.\n"); |
c906108c SS |
1649 | else |
1650 | { | |
6cb06a8c | 1651 | gdb_printf (" Arglist at "); |
0426ad51 | 1652 | gdb_puts (paddress (gdbarch, arg_list)); |
6cb06a8c | 1653 | gdb_printf (","); |
c906108c | 1654 | |
7500260a | 1655 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1656 | { |
1657 | numargs = -1; | |
0426ad51 | 1658 | gdb_puts (" args: "); |
983a287a | 1659 | } |
c906108c | 1660 | else |
983a287a | 1661 | { |
7500260a | 1662 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1663 | gdb_assert (numargs >= 0); |
1664 | if (numargs == 0) | |
0426ad51 | 1665 | gdb_puts (" no args."); |
983a287a | 1666 | else if (numargs == 1) |
0426ad51 | 1667 | gdb_puts (" 1 arg: "); |
983a287a | 1668 | else |
6cb06a8c | 1669 | gdb_printf (" %d args: ", numargs); |
983a287a | 1670 | } |
3dc9dde2 | 1671 | |
d4c16835 PA |
1672 | print_frame_args (user_frame_print_options, |
1673 | func, fi, numargs, gdb_stdout); | |
0426ad51 | 1674 | gdb_puts ("\n"); |
c906108c SS |
1675 | } |
1676 | } | |
1677 | { | |
1678 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1679 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1680 | |
1681 | if (arg_list == 0) | |
6cb06a8c | 1682 | gdb_printf (" Locals at unknown address,"); |
c906108c SS |
1683 | else |
1684 | { | |
6cb06a8c | 1685 | gdb_printf (" Locals at "); |
0426ad51 | 1686 | gdb_puts (paddress (gdbarch, arg_list)); |
6cb06a8c | 1687 | gdb_printf (","); |
c906108c SS |
1688 | } |
1689 | } | |
1690 | ||
4f460812 AC |
1691 | /* Print as much information as possible on the location of all the |
1692 | registers. */ | |
1693 | { | |
4f460812 AC |
1694 | int count; |
1695 | int i; | |
1696 | int need_nl = 1; | |
b0e4b369 | 1697 | int sp_regnum = gdbarch_sp_regnum (gdbarch); |
4f460812 AC |
1698 | |
1699 | /* The sp is special; what's displayed isn't the save address, but | |
1700 | the value of the previous frame's sp. This is a legacy thing, | |
1701 | at one stage the frame cached the previous frame's SP instead | |
1702 | of its address, hence it was easiest to just display the cached | |
1703 | value. */ | |
b0e4b369 | 1704 | if (sp_regnum >= 0) |
4f460812 | 1705 | { |
b0e4b369 AH |
1706 | struct value *value = frame_unwind_register_value (fi, sp_regnum); |
1707 | gdb_assert (value != NULL); | |
1708 | ||
d00664db | 1709 | if (!value->optimized_out () && value->entirely_available ()) |
4f460812 | 1710 | { |
736355f2 | 1711 | if (value->lval () == not_lval) |
b0e4b369 AH |
1712 | { |
1713 | CORE_ADDR sp; | |
1714 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1715 | int sp_size = register_size (gdbarch, sp_regnum); | |
1716 | ||
50888e42 | 1717 | sp = extract_unsigned_integer |
efaf1ae0 | 1718 | (value->contents_all ().data (), sp_size, byte_order); |
b0e4b369 | 1719 | |
6cb06a8c | 1720 | gdb_printf (" Previous frame's sp is "); |
0426ad51 | 1721 | gdb_puts (paddress (gdbarch, sp)); |
6cb06a8c | 1722 | gdb_printf ("\n"); |
b0e4b369 | 1723 | } |
736355f2 | 1724 | else if (value->lval () == lval_memory) |
b0e4b369 | 1725 | { |
6cb06a8c | 1726 | gdb_printf (" Previous frame's sp at "); |
9feb2d07 | 1727 | gdb_puts (paddress (gdbarch, value->address ())); |
6cb06a8c | 1728 | gdb_printf ("\n"); |
b0e4b369 | 1729 | } |
736355f2 | 1730 | else if (value->lval () == lval_register) |
85bfd77e SM |
1731 | gdb_printf (" Previous frame's sp in %s\n", |
1732 | gdbarch_register_name (gdbarch, value->regnum ())); | |
b0e4b369 AH |
1733 | |
1734 | release_value (value); | |
4f460812 AC |
1735 | need_nl = 0; |
1736 | } | |
1737 | /* else keep quiet. */ | |
1738 | } | |
1739 | ||
1740 | count = 0; | |
f6efe3f8 | 1741 | numregs = gdbarch_num_cooked_regs (gdbarch); |
4f460812 | 1742 | for (i = 0; i < numregs; i++) |
b0e4b369 | 1743 | if (i != sp_regnum |
7500260a | 1744 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4f460812 | 1745 | { |
b0e4b369 AH |
1746 | enum lval_type lval; |
1747 | int optimized; | |
1748 | int unavailable; | |
1749 | CORE_ADDR addr; | |
1750 | int realnum; | |
1751 | ||
4f460812 | 1752 | /* Find out the location of the saved register without |
dda83cd7 | 1753 | fetching the corresponding value. */ |
0fdb4f18 PA |
1754 | frame_register_unwind (fi, i, &optimized, &unavailable, |
1755 | &lval, &addr, &realnum, NULL); | |
4f460812 AC |
1756 | /* For moment, only display registers that were saved on the |
1757 | stack. */ | |
0fdb4f18 | 1758 | if (!optimized && !unavailable && lval == lval_memory) |
4f460812 AC |
1759 | { |
1760 | if (count == 0) | |
0426ad51 | 1761 | gdb_puts (" Saved registers:\n "); |
4f460812 | 1762 | else |
0426ad51 | 1763 | gdb_puts (","); |
1285ce86 | 1764 | gdb_stdout->wrap_here (1); |
6cb06a8c TT |
1765 | gdb_printf (" %s at ", |
1766 | gdbarch_register_name (gdbarch, i)); | |
0426ad51 | 1767 | gdb_puts (paddress (gdbarch, addr)); |
4f460812 AC |
1768 | count++; |
1769 | } | |
1770 | } | |
1771 | if (count || need_nl) | |
0426ad51 | 1772 | gdb_puts ("\n"); |
4f460812 | 1773 | } |
c906108c SS |
1774 | } |
1775 | ||
6a70eb7d PW |
1776 | /* Return the innermost frame at level LEVEL. */ |
1777 | ||
bd2b40ac | 1778 | static frame_info_ptr |
6a70eb7d PW |
1779 | leading_innermost_frame (int level) |
1780 | { | |
bd2b40ac | 1781 | frame_info_ptr leading; |
6a70eb7d PW |
1782 | |
1783 | leading = get_current_frame (); | |
1784 | ||
1785 | gdb_assert (level >= 0); | |
1786 | ||
1787 | while (leading != nullptr && level) | |
1788 | { | |
1789 | QUIT; | |
1790 | leading = get_prev_frame (leading); | |
1791 | level--; | |
1792 | } | |
1793 | ||
1794 | return leading; | |
1795 | } | |
1796 | ||
1797 | /* Return the starting frame needed to handle COUNT outermost frames. */ | |
1798 | ||
bd2b40ac | 1799 | static frame_info_ptr |
6a70eb7d PW |
1800 | trailing_outermost_frame (int count) |
1801 | { | |
bd2b40ac TT |
1802 | frame_info_ptr current; |
1803 | frame_info_ptr trailing; | |
6a70eb7d PW |
1804 | |
1805 | trailing = get_current_frame (); | |
1806 | ||
1807 | gdb_assert (count > 0); | |
1808 | ||
1809 | current = trailing; | |
1810 | while (current != nullptr && count--) | |
1811 | { | |
1812 | QUIT; | |
1813 | current = get_prev_frame (current); | |
1814 | } | |
1815 | ||
1816 | /* Will stop when CURRENT reaches the top of the stack. | |
1817 | TRAILING will be COUNT below it. */ | |
1818 | while (current != nullptr) | |
1819 | { | |
1820 | QUIT; | |
1821 | trailing = get_prev_frame (trailing); | |
1822 | current = get_prev_frame (current); | |
1823 | } | |
1824 | ||
1825 | return trailing; | |
1826 | } | |
1827 | ||
f67ffa6a AB |
1828 | /* The core of all the "select-frame" sub-commands. Just wraps a call to |
1829 | SELECT_FRAME. */ | |
1830 | ||
1831 | static void | |
8480a37e | 1832 | select_frame_command_core (const frame_info_ptr &fi, bool ignored) |
f67ffa6a | 1833 | { |
bd2b40ac | 1834 | frame_info_ptr prev_frame = get_selected_frame (); |
f67ffa6a | 1835 | select_frame (fi); |
79952e69 | 1836 | if (get_selected_frame () != prev_frame) |
77cd03e2 | 1837 | notify_user_selected_context_changed (USER_SELECTED_FRAME); |
f67ffa6a AB |
1838 | } |
1839 | ||
f67ffa6a AB |
1840 | /* The core of all the "frame" sub-commands. Select frame FI, and if this |
1841 | means we change frame send out a change notification (otherwise, just | |
1842 | reprint the current frame summary). */ | |
1843 | ||
1844 | static void | |
8480a37e | 1845 | frame_command_core (const frame_info_ptr &fi, bool ignored) |
f67ffa6a | 1846 | { |
bd2b40ac | 1847 | frame_info_ptr prev_frame = get_selected_frame (); |
f67ffa6a | 1848 | select_frame (fi); |
79952e69 | 1849 | if (get_selected_frame () != prev_frame) |
77cd03e2 | 1850 | notify_user_selected_context_changed (USER_SELECTED_FRAME); |
f67ffa6a AB |
1851 | else |
1852 | print_selected_thread_frame (current_uiout, USER_SELECTED_FRAME); | |
1853 | } | |
1854 | ||
1855 | /* The three commands 'frame', 'select-frame', and 'info frame' all have a | |
1856 | common set of sub-commands that allow a specific frame to be selected. | |
1857 | All of the sub-command functions are static methods within this class | |
1858 | template which is then instantiated below. The template parameter is a | |
1859 | callback used to implement the functionality of the base command | |
1860 | ('frame', 'select-frame', or 'info frame'). | |
1861 | ||
1862 | In the template parameter FI is the frame being selected. The | |
1863 | SELECTED_FRAME_P flag is true if the frame being selected was done by | |
1864 | default, which happens when the user uses the base command with no | |
1865 | arguments. For example the commands 'info frame', 'select-frame', | |
1866 | 'frame' will all cause SELECTED_FRAME_P to be true. In all other cases | |
1867 | SELECTED_FRAME_P is false. */ | |
1868 | ||
8480a37e | 1869 | template <void (*FPTR) (const frame_info_ptr &fi, bool selected_frame_p)> |
f67ffa6a AB |
1870 | class frame_command_helper |
1871 | { | |
1872 | public: | |
1873 | ||
1874 | /* The "frame level" family of commands. The ARG is an integer that is | |
1875 | the frame's level in the stack. */ | |
1876 | static void | |
1877 | level (const char *arg, int from_tty) | |
1878 | { | |
1879 | int level = value_as_long (parse_and_eval (arg)); | |
bd2b40ac | 1880 | frame_info_ptr fid |
f67ffa6a AB |
1881 | = find_relative_frame (get_current_frame (), &level); |
1882 | if (level != 0) | |
1883 | error (_("No frame at level %s."), arg); | |
1884 | FPTR (fid, false); | |
1885 | } | |
1886 | ||
1887 | /* The "frame address" family of commands. ARG is a stack-pointer | |
1888 | address for an existing frame. This command does not allow new | |
1889 | frames to be created. */ | |
1890 | ||
1891 | static void | |
1892 | address (const char *arg, int from_tty) | |
1893 | { | |
1894 | CORE_ADDR addr = value_as_address (parse_and_eval (arg)); | |
bd2b40ac | 1895 | frame_info_ptr fid = find_frame_for_address (addr); |
f67ffa6a AB |
1896 | if (fid == NULL) |
1897 | error (_("No frame at address %s."), arg); | |
1898 | FPTR (fid, false); | |
1899 | } | |
1900 | ||
1901 | /* The "frame view" family of commands. ARG is one or two addresses and | |
1902 | is used to view a frame that might be outside the current backtrace. | |
1903 | The addresses are stack-pointer address, and (optional) pc-address. */ | |
1904 | ||
1905 | static void | |
1906 | view (const char *args, int from_tty) | |
1907 | { | |
bd2b40ac | 1908 | frame_info_ptr fid; |
f67ffa6a AB |
1909 | |
1910 | if (args == NULL) | |
01add95b | 1911 | error (_("Missing address argument to view a frame")); |
f67ffa6a AB |
1912 | |
1913 | gdb_argv argv (args); | |
1914 | ||
1915 | if (argv.count () == 2) | |
1916 | { | |
1917 | CORE_ADDR addr[2]; | |
1918 | ||
1919 | addr [0] = value_as_address (parse_and_eval (argv[0])); | |
1920 | addr [1] = value_as_address (parse_and_eval (argv[1])); | |
1921 | fid = create_new_frame (addr[0], addr[1]); | |
1922 | } | |
1923 | else | |
1924 | { | |
1925 | CORE_ADDR addr = value_as_address (parse_and_eval (argv[0])); | |
1926 | fid = create_new_frame (addr, false); | |
1927 | } | |
1928 | FPTR (fid, false); | |
1929 | } | |
1930 | ||
1931 | /* The "frame function" family of commands. ARG is the name of a | |
1932 | function within the stack, the first function (searching from frame | |
1933 | 0) with that name will be selected. */ | |
1934 | ||
1935 | static void | |
1936 | function (const char *arg, int from_tty) | |
1937 | { | |
1938 | if (arg == NULL) | |
1939 | error (_("Missing function name argument")); | |
bd2b40ac | 1940 | frame_info_ptr fid = find_frame_for_function (arg); |
f67ffa6a AB |
1941 | if (fid == NULL) |
1942 | error (_("No frame for function \"%s\"."), arg); | |
1943 | FPTR (fid, false); | |
1944 | } | |
1945 | ||
1946 | /* The "frame" base command, that is, when no sub-command is specified. | |
1947 | If one argument is provided then we assume that this is a frame's | |
1948 | level as historically, this was the supported command syntax that was | |
1949 | used most often. | |
1950 | ||
1951 | If no argument is provided, then the current frame is selected. */ | |
1952 | ||
1953 | static void | |
1954 | base_command (const char *arg, int from_tty) | |
1955 | { | |
1956 | if (arg == NULL) | |
1957 | FPTR (get_selected_frame (_("No stack.")), true); | |
1958 | else | |
1959 | level (arg, from_tty); | |
1960 | } | |
1961 | }; | |
1962 | ||
1963 | /* Instantiate three FRAME_COMMAND_HELPER instances to implement the | |
1964 | sub-commands for 'info frame', 'frame', and 'select-frame' commands. */ | |
1965 | ||
1966 | static frame_command_helper <info_frame_command_core> info_frame_cmd; | |
1967 | static frame_command_helper <frame_command_core> frame_cmd; | |
1968 | static frame_command_helper <select_frame_command_core> select_frame_cmd; | |
1969 | ||
033a42c2 MK |
1970 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1971 | frames. */ | |
c906108c SS |
1972 | |
1973 | static void | |
d4c16835 PA |
1974 | backtrace_command_1 (const frame_print_options &fp_opts, |
1975 | const backtrace_cmd_options &bt_opts, | |
1976 | const char *count_exp, int from_tty) | |
1977 | ||
c906108c | 1978 | { |
bd2b40ac | 1979 | frame_info_ptr fi; |
52f0bd74 | 1980 | int count; |
fb7eb8b5 | 1981 | int py_start = 0, py_end = 0; |
6dddc817 | 1982 | enum ext_lang_bt_status result = EXT_LANG_BT_ERROR; |
c906108c | 1983 | |
841de120 | 1984 | if (!target_has_stack ()) |
8a3fe4f8 | 1985 | error (_("No stack.")); |
c906108c | 1986 | |
c906108c SS |
1987 | if (count_exp) |
1988 | { | |
bb518678 | 1989 | count = parse_and_eval_long (count_exp); |
c906108c | 1990 | if (count < 0) |
fb7eb8b5 | 1991 | py_start = count; |
1e611234 PM |
1992 | else |
1993 | { | |
1994 | py_start = 0; | |
6893c19a TT |
1995 | /* The argument to apply_ext_lang_frame_filter is the number |
1996 | of the final frame to print, and frames start at 0. */ | |
1997 | py_end = count - 1; | |
1e611234 | 1998 | } |
c906108c SS |
1999 | } |
2000 | else | |
1e611234 PM |
2001 | { |
2002 | py_end = -1; | |
2003 | count = -1; | |
2004 | } | |
c906108c | 2005 | |
d4c16835 PA |
2006 | frame_filter_flags flags = 0; |
2007 | ||
2008 | if (bt_opts.full) | |
2009 | flags |= PRINT_LOCALS; | |
2010 | if (bt_opts.hide) | |
2011 | flags |= PRINT_HIDE; | |
ad7b7cb1 HD |
2012 | if (fp_opts.print_raw_frame_arguments) |
2013 | flags |= PRINT_RAW_FRAME_ARGUMENTS; | |
d4c16835 PA |
2014 | |
2015 | if (!bt_opts.no_filters) | |
c906108c | 2016 | { |
6dddc817 | 2017 | enum ext_lang_frame_args arg_type; |
c906108c | 2018 | |
1cf7e640 | 2019 | flags |= PRINT_LEVEL | PRINT_FRAME_INFO | PRINT_ARGS; |
6893c19a TT |
2020 | if (from_tty) |
2021 | flags |= PRINT_MORE_FRAMES; | |
1e611234 | 2022 | |
d4c16835 | 2023 | if (fp_opts.print_frame_arguments == print_frame_arguments_scalars) |
1e611234 | 2024 | arg_type = CLI_SCALAR_VALUES; |
d4c16835 | 2025 | else if (fp_opts.print_frame_arguments == print_frame_arguments_all) |
1e611234 | 2026 | arg_type = CLI_ALL_VALUES; |
4b5e8d19 PW |
2027 | else if (fp_opts.print_frame_arguments == print_frame_arguments_presence) |
2028 | arg_type = CLI_PRESENCE; | |
2029 | else if (fp_opts.print_frame_arguments == print_frame_arguments_none) | |
1e611234 | 2030 | arg_type = NO_VALUES; |
4b5e8d19 PW |
2031 | else |
2032 | gdb_assert (0); | |
1e611234 | 2033 | |
6dddc817 DE |
2034 | result = apply_ext_lang_frame_filter (get_current_frame (), flags, |
2035 | arg_type, current_uiout, | |
2036 | py_start, py_end); | |
1e611234 | 2037 | } |
6dddc817 | 2038 | |
1e611234 | 2039 | /* Run the inbuilt backtrace if there are no filters registered, or |
d4c16835 PA |
2040 | "-no-filters" has been specified from the command. */ |
2041 | if (bt_opts.no_filters || result == EXT_LANG_BT_NO_FILTERS) | |
1e611234 | 2042 | { |
bd2b40ac | 2043 | frame_info_ptr trailing; |
fb7eb8b5 TT |
2044 | |
2045 | /* The following code must do two things. First, it must set the | |
2046 | variable TRAILING to the frame from which we should start | |
2047 | printing. Second, it must set the variable count to the number | |
2048 | of frames which we should print, or -1 if all of them. */ | |
fb7eb8b5 TT |
2049 | |
2050 | if (count_exp != NULL && count < 0) | |
2051 | { | |
6a70eb7d | 2052 | trailing = trailing_outermost_frame (-count); |
fb7eb8b5 TT |
2053 | count = -1; |
2054 | } | |
6a70eb7d PW |
2055 | else |
2056 | trailing = get_current_frame (); | |
fb7eb8b5 | 2057 | |
59f66be3 | 2058 | for (fi = trailing; fi && count--; fi = get_prev_frame (fi)) |
1e611234 PM |
2059 | { |
2060 | QUIT; | |
2061 | ||
2062 | /* Don't use print_stack_frame; if an error() occurs it probably | |
2063 | means further attempts to backtrace would fail (on the other | |
2064 | hand, perhaps the code does or could be fixed to make sure | |
2065 | the frame->prev field gets set to NULL in that case). */ | |
2066 | ||
d4c16835 | 2067 | print_frame_info (fp_opts, fi, 1, LOCATION, 1, 0); |
1cf7e640 | 2068 | if ((flags & PRINT_LOCALS) != 0) |
73cafdbd | 2069 | print_frame_local_vars (fi, false, NULL, NULL, 1, gdb_stdout); |
55feb689 | 2070 | |
1e611234 PM |
2071 | /* Save the last frame to check for error conditions. */ |
2072 | trailing = fi; | |
2073 | } | |
c906108c | 2074 | |
1e611234 PM |
2075 | /* If we've stopped before the end, mention that. */ |
2076 | if (fi && from_tty) | |
6cb06a8c | 2077 | gdb_printf (_("(More stack frames follow...)\n")); |
55feb689 | 2078 | |
1e611234 PM |
2079 | /* If we've run out of frames, and the reason appears to be an error |
2080 | condition, print it. */ | |
2081 | if (fi == NULL && trailing != NULL) | |
2082 | { | |
2083 | enum unwind_stop_reason reason; | |
55feb689 | 2084 | |
1e611234 PM |
2085 | reason = get_frame_unwind_stop_reason (trailing); |
2086 | if (reason >= UNWIND_FIRST_ERROR) | |
6cb06a8c TT |
2087 | gdb_printf (_("Backtrace stopped: %s\n"), |
2088 | frame_stop_reason_string (trailing)); | |
1e611234 | 2089 | } |
55feb689 | 2090 | } |
c906108c SS |
2091 | } |
2092 | ||
d4c16835 PA |
2093 | /* Create an option_def_group array grouping all the "backtrace" |
2094 | options, with FP_OPTS, BT_CMD_OPT, SET_BT_OPTS as contexts. */ | |
2095 | ||
2096 | static inline std::array<gdb::option::option_def_group, 3> | |
2097 | make_backtrace_options_def_group (frame_print_options *fp_opts, | |
2098 | backtrace_cmd_options *bt_cmd_opts, | |
2099 | set_backtrace_options *set_bt_opts) | |
2100 | { | |
2101 | return {{ | |
2102 | { {frame_print_option_defs}, fp_opts }, | |
2103 | { {set_backtrace_option_defs}, set_bt_opts }, | |
2104 | { {backtrace_command_option_defs}, bt_cmd_opts } | |
2105 | }}; | |
2106 | } | |
2107 | ||
90a1ef87 PA |
2108 | /* Parse the backtrace command's qualifiers. Returns ARG advanced |
2109 | past the qualifiers, if any. BT_CMD_OPTS, if not null, is used to | |
2110 | store the parsed qualifiers. */ | |
2111 | ||
2112 | static const char * | |
2113 | parse_backtrace_qualifiers (const char *arg, | |
2114 | backtrace_cmd_options *bt_cmd_opts = nullptr) | |
2115 | { | |
2116 | while (true) | |
2117 | { | |
2118 | const char *save_arg = arg; | |
2119 | std::string this_arg = extract_arg (&arg); | |
2120 | ||
2121 | if (this_arg.empty ()) | |
2122 | return arg; | |
2123 | ||
c5739418 | 2124 | if (startswith ("no-filters", this_arg)) |
90a1ef87 PA |
2125 | { |
2126 | if (bt_cmd_opts != nullptr) | |
2127 | bt_cmd_opts->no_filters = true; | |
2128 | } | |
c5739418 | 2129 | else if (startswith ("full", this_arg)) |
90a1ef87 PA |
2130 | { |
2131 | if (bt_cmd_opts != nullptr) | |
2132 | bt_cmd_opts->full = true; | |
2133 | } | |
c5739418 | 2134 | else if (startswith ("hide", this_arg)) |
90a1ef87 PA |
2135 | { |
2136 | if (bt_cmd_opts != nullptr) | |
2137 | bt_cmd_opts->hide = true; | |
2138 | } | |
2139 | else | |
2140 | { | |
2141 | /* Not a recognized qualifier, so stop. */ | |
2142 | return save_arg; | |
2143 | } | |
2144 | } | |
2145 | } | |
2146 | ||
c906108c | 2147 | static void |
0b39b52e | 2148 | backtrace_command (const char *arg, int from_tty) |
c906108c | 2149 | { |
d4c16835 PA |
2150 | frame_print_options fp_opts = user_frame_print_options; |
2151 | backtrace_cmd_options bt_cmd_opts; | |
2152 | set_backtrace_options set_bt_opts = user_set_backtrace_options; | |
c906108c | 2153 | |
d4c16835 PA |
2154 | auto grp |
2155 | = make_backtrace_options_def_group (&fp_opts, &bt_cmd_opts, &set_bt_opts); | |
2156 | gdb::option::process_options | |
2157 | (&arg, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
c906108c | 2158 | |
d4c16835 PA |
2159 | /* Parse non-'-'-prefixed qualifiers, for backwards |
2160 | compatibility. */ | |
2161 | if (arg != NULL) | |
2162 | { | |
90a1ef87 | 2163 | arg = parse_backtrace_qualifiers (arg, &bt_cmd_opts); |
ea3b0687 TT |
2164 | if (*arg == '\0') |
2165 | arg = NULL; | |
c906108c SS |
2166 | } |
2167 | ||
d4c16835 PA |
2168 | /* These options are handled quite deep in the unwind machinery, so |
2169 | we get to pass them down by swapping globals. */ | |
2170 | scoped_restore restore_set_backtrace_options | |
2171 | = make_scoped_restore (&user_set_backtrace_options, set_bt_opts); | |
2172 | ||
2173 | backtrace_command_1 (fp_opts, bt_cmd_opts, arg, from_tty); | |
2174 | } | |
2175 | ||
2176 | /* Completer for the "backtrace" command. */ | |
2177 | ||
2178 | static void | |
2179 | backtrace_command_completer (struct cmd_list_element *ignore, | |
2180 | completion_tracker &tracker, | |
2181 | const char *text, const char */*word*/) | |
2182 | { | |
2183 | const auto group | |
2184 | = make_backtrace_options_def_group (nullptr, nullptr, nullptr); | |
2185 | if (gdb::option::complete_options | |
2186 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
2187 | return; | |
2188 | ||
90a1ef87 PA |
2189 | if (*text != '\0') |
2190 | { | |
2191 | const char *p = skip_to_space (text); | |
2192 | if (*p == '\0') | |
2193 | { | |
2194 | static const char *const backtrace_cmd_qualifier_choices[] = { | |
2195 | "full", "no-filters", "hide", nullptr, | |
2196 | }; | |
2197 | complete_on_enum (tracker, backtrace_cmd_qualifier_choices, | |
2198 | text, text); | |
2199 | ||
2200 | if (tracker.have_completions ()) | |
2201 | return; | |
2202 | } | |
2203 | else | |
2204 | { | |
2205 | const char *cmd = parse_backtrace_qualifiers (text); | |
2206 | tracker.advance_custom_word_point_by (cmd - text); | |
2207 | text = cmd; | |
2208 | } | |
2209 | } | |
2210 | ||
d4c16835 PA |
2211 | const char *word = advance_to_expression_complete_word_point (tracker, text); |
2212 | expression_completer (ignore, tracker, text, word); | |
c906108c SS |
2213 | } |
2214 | ||
13835d88 | 2215 | /* Iterate over the local variables of a block B, calling CB. */ |
c906108c | 2216 | |
2c58c0a9 | 2217 | static void |
3977b71f | 2218 | iterate_over_block_locals (const struct block *b, |
13835d88 | 2219 | iterate_over_block_arg_local_vars_cb cb) |
c906108c | 2220 | { |
548a89df | 2221 | for (struct symbol *sym : block_iterator_range (b)) |
c906108c | 2222 | { |
66d7f48f | 2223 | switch (sym->aclass ()) |
c906108c | 2224 | { |
a88ef40d | 2225 | case LOC_CONST: |
c906108c SS |
2226 | case LOC_LOCAL: |
2227 | case LOC_REGISTER: | |
2228 | case LOC_STATIC: | |
4c2df51b | 2229 | case LOC_COMPUTED: |
41bd68f5 | 2230 | case LOC_OPTIMIZED_OUT: |
d9743061 | 2231 | if (sym->is_argument ()) |
2a2d4dc3 | 2232 | break; |
6c9c307c | 2233 | if (sym->domain () == COMMON_BLOCK_DOMAIN) |
4357ac6c | 2234 | break; |
13835d88 | 2235 | cb (sym->print_name (), sym); |
c906108c SS |
2236 | break; |
2237 | ||
2238 | default: | |
2239 | /* Ignore symbols which are not locals. */ | |
2240 | break; | |
2241 | } | |
2242 | } | |
c906108c SS |
2243 | } |
2244 | ||
2c58c0a9 PA |
2245 | /* Iterate over all the local variables in block B, including all its |
2246 | superblocks, stopping when the top-level block is reached. */ | |
2247 | ||
2248 | void | |
3977b71f | 2249 | iterate_over_block_local_vars (const struct block *block, |
13835d88 | 2250 | iterate_over_block_arg_local_vars_cb cb) |
2c58c0a9 PA |
2251 | { |
2252 | while (block) | |
2253 | { | |
13835d88 | 2254 | iterate_over_block_locals (block, cb); |
2c58c0a9 PA |
2255 | /* After handling the function's top-level block, stop. Don't |
2256 | continue to its superblock, the block of per-file | |
2257 | symbols. */ | |
6c00f721 | 2258 | if (block->function ()) |
2c58c0a9 | 2259 | break; |
f135fe72 | 2260 | block = block->superblock (); |
2c58c0a9 PA |
2261 | } |
2262 | } | |
2263 | ||
2264 | /* Data to be passed around in the calls to the locals and args | |
2265 | iterators. */ | |
c906108c | 2266 | |
2c58c0a9 PA |
2267 | struct print_variable_and_value_data |
2268 | { | |
6b09f134 LS |
2269 | std::optional<compiled_regex> preg; |
2270 | std::optional<compiled_regex> treg; | |
8f043999 | 2271 | struct frame_id frame_id; |
2c58c0a9 PA |
2272 | int num_tabs; |
2273 | struct ui_file *stream; | |
2274 | int values_printed; | |
13835d88 TT |
2275 | |
2276 | void operator() (const char *print_name, struct symbol *sym); | |
2c58c0a9 PA |
2277 | }; |
2278 | ||
c378eb4e | 2279 | /* The callback for the locals and args iterators. */ |
2c58c0a9 | 2280 | |
13835d88 TT |
2281 | void |
2282 | print_variable_and_value_data::operator() (const char *print_name, | |
2283 | struct symbol *sym) | |
2c58c0a9 | 2284 | { |
bd2b40ac | 2285 | frame_info_ptr frame; |
8f043999 | 2286 | |
13835d88 TT |
2287 | if (preg.has_value () |
2288 | && preg->exec (sym->natural_name (), 0, NULL, 0) != 0) | |
12615cba | 2289 | return; |
13835d88 TT |
2290 | if (treg.has_value () |
2291 | && !treg_matches_sym_type_name (*treg, sym)) | |
12615cba | 2292 | return; |
2c71f639 TV |
2293 | if (language_def (sym->language ())->symbol_printing_suppressed (sym)) |
2294 | return; | |
12615cba | 2295 | |
13835d88 | 2296 | frame = frame_find_by_id (frame_id); |
8f043999 JK |
2297 | if (frame == NULL) |
2298 | { | |
2299 | warning (_("Unable to restore previously selected frame.")); | |
2300 | return; | |
2301 | } | |
2302 | ||
13835d88 | 2303 | print_variable_and_value (print_name, sym, frame, stream, num_tabs); |
8f043999 | 2304 | |
13835d88 | 2305 | values_printed = 1; |
2c58c0a9 | 2306 | } |
c906108c | 2307 | |
12615cba PW |
2308 | /* Prepares the regular expression REG from REGEXP. |
2309 | If REGEXP is NULL, it results in an empty regular expression. */ | |
2310 | ||
2311 | static void | |
6b09f134 | 2312 | prepare_reg (const char *regexp, std::optional<compiled_regex> *reg) |
12615cba PW |
2313 | { |
2314 | if (regexp != NULL) | |
2315 | { | |
2316 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
2317 | ? REG_ICASE : 0); | |
2318 | reg->emplace (regexp, cflags, _("Invalid regexp")); | |
2319 | } | |
2320 | else | |
2321 | reg->reset (); | |
2322 | } | |
2323 | ||
8f043999 JK |
2324 | /* Print all variables from the innermost up to the function block of FRAME. |
2325 | Print them with values to STREAM indented by NUM_TABS. | |
12615cba PW |
2326 | If REGEXP is not NULL, only print local variables whose name |
2327 | matches REGEXP. | |
2328 | If T_REGEXP is not NULL, only print local variables whose type | |
2329 | matches T_REGEXP. | |
2330 | If no local variables have been printed and !QUIET, prints a message | |
1f9e9ea5 | 2331 | explaining why no local variables could be printed. */ |
8f043999 | 2332 | |
c906108c | 2333 | static void |
8480a37e | 2334 | print_frame_local_vars (const frame_info_ptr &frame, |
12615cba PW |
2335 | bool quiet, |
2336 | const char *regexp, const char *t_regexp, | |
2337 | int num_tabs, struct ui_file *stream) | |
c906108c | 2338 | { |
2c58c0a9 | 2339 | struct print_variable_and_value_data cb_data; |
3977b71f | 2340 | const struct block *block; |
1d4f5741 PA |
2341 | CORE_ADDR pc; |
2342 | ||
2343 | if (!get_frame_pc_if_available (frame, &pc)) | |
2344 | { | |
12615cba | 2345 | if (!quiet) |
6cb06a8c TT |
2346 | gdb_printf (stream, |
2347 | _("PC unavailable, cannot determine locals.\n")); | |
1d4f5741 PA |
2348 | return; |
2349 | } | |
c906108c | 2350 | |
2c58c0a9 | 2351 | block = get_frame_block (frame, 0); |
c906108c SS |
2352 | if (block == 0) |
2353 | { | |
12615cba | 2354 | if (!quiet) |
6cb06a8c | 2355 | gdb_printf (stream, "No symbol table info available.\n"); |
c906108c SS |
2356 | return; |
2357 | } | |
c5aa993b | 2358 | |
12615cba PW |
2359 | prepare_reg (regexp, &cb_data.preg); |
2360 | prepare_reg (t_regexp, &cb_data.treg); | |
8f043999 | 2361 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 PA |
2362 | cb_data.num_tabs = 4 * num_tabs; |
2363 | cb_data.stream = stream; | |
2364 | cb_data.values_printed = 0; | |
2365 | ||
16c3b12f JB |
2366 | /* Temporarily change the selected frame to the given FRAME. |
2367 | This allows routines that rely on the selected frame instead | |
2368 | of being given a frame as parameter to use the correct frame. */ | |
45f25d6c | 2369 | scoped_restore_selected_frame restore_selected_frame; |
16c3b12f JB |
2370 | select_frame (frame); |
2371 | ||
13835d88 | 2372 | iterate_over_block_local_vars (block, cb_data); |
8f043999 | 2373 | |
12615cba PW |
2374 | if (!cb_data.values_printed && !quiet) |
2375 | { | |
2376 | if (regexp == NULL && t_regexp == NULL) | |
6cb06a8c | 2377 | gdb_printf (stream, _("No locals.\n")); |
12615cba | 2378 | else |
6cb06a8c | 2379 | gdb_printf (stream, _("No matching locals.\n")); |
12615cba | 2380 | } |
c906108c SS |
2381 | } |
2382 | ||
4acfdd20 AB |
2383 | /* Structure to hold the values of the options used by the 'info |
2384 | variables' command and other similar commands. These correspond to the | |
2385 | -q and -t options. */ | |
2386 | ||
2387 | struct info_print_options | |
2388 | { | |
491144b5 | 2389 | bool quiet = false; |
e0700ba4 | 2390 | std::string type_regexp; |
4acfdd20 AB |
2391 | }; |
2392 | ||
2393 | /* The options used by the 'info locals' and 'info args' commands. */ | |
2394 | ||
2395 | static const gdb::option::option_def info_print_options_defs[] = { | |
2396 | gdb::option::boolean_option_def<info_print_options> { | |
2397 | "q", | |
2398 | [] (info_print_options *opt) { return &opt->quiet; }, | |
2399 | nullptr, /* show_cmd_cb */ | |
2400 | nullptr /* set_doc */ | |
2401 | }, | |
2402 | ||
2403 | gdb::option::string_option_def<info_print_options> { | |
2404 | "t", | |
2405 | [] (info_print_options *opt) { return &opt->type_regexp; }, | |
2406 | nullptr, /* show_cmd_cb */ | |
2407 | nullptr /* set_doc */ | |
2408 | } | |
2409 | }; | |
2410 | ||
2411 | /* Returns the option group used by 'info locals' and 'info args' | |
2412 | commands. */ | |
2413 | ||
2414 | static gdb::option::option_def_group | |
2415 | make_info_print_options_def_group (info_print_options *opts) | |
2416 | { | |
2417 | return {{info_print_options_defs}, opts}; | |
2418 | } | |
2419 | ||
2420 | /* Command completer for 'info locals' and 'info args'. */ | |
2421 | ||
2422 | static void | |
2423 | info_print_command_completer (struct cmd_list_element *ignore, | |
2424 | completion_tracker &tracker, | |
2425 | const char *text, const char * /* word */) | |
2426 | { | |
2427 | const auto group | |
2428 | = make_info_print_options_def_group (nullptr); | |
2429 | if (gdb::option::complete_options | |
2430 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
2431 | return; | |
2432 | ||
2433 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
2434 | symbol_completer (ignore, tracker, text, word); | |
2435 | } | |
2436 | ||
b16507e0 AB |
2437 | /* Implement the 'info locals' command. */ |
2438 | ||
c906108c | 2439 | void |
1d12d88f | 2440 | info_locals_command (const char *args, int from_tty) |
c906108c | 2441 | { |
b16507e0 | 2442 | info_print_options opts; |
4acfdd20 AB |
2443 | auto grp = make_info_print_options_def_group (&opts); |
2444 | gdb::option::process_options | |
2445 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
2446 | if (args != nullptr && *args == '\0') | |
2447 | args = nullptr; | |
12615cba | 2448 | |
e0700ba4 SM |
2449 | print_frame_local_vars |
2450 | (get_selected_frame (_("No frame selected.")), | |
2451 | opts.quiet, args, | |
2452 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
2453 | 0, gdb_stdout); | |
c906108c SS |
2454 | } |
2455 | ||
d392224a | 2456 | /* Iterate over all the argument variables in block B. */ |
2c58c0a9 PA |
2457 | |
2458 | void | |
3977b71f | 2459 | iterate_over_block_arg_vars (const struct block *b, |
13835d88 | 2460 | iterate_over_block_arg_local_vars_cb cb) |
c906108c | 2461 | { |
548a89df | 2462 | for (struct symbol *sym : block_iterator_range (b)) |
c906108c | 2463 | { |
2a2d4dc3 | 2464 | /* Don't worry about things which aren't arguments. */ |
d9743061 | 2465 | if (sym->is_argument ()) |
c906108c | 2466 | { |
c906108c SS |
2467 | /* We have to look up the symbol because arguments can have |
2468 | two entries (one a parameter, one a local) and the one we | |
2469 | want is the local, which lookup_symbol will find for us. | |
2470 | This includes gcc1 (not gcc2) on the sparc when passing a | |
2471 | small structure and gcc2 when the argument type is float | |
2472 | and it is passed as a double and converted to float by | |
2473 | the prologue (in the latter case the type of the LOC_ARG | |
2474 | symbol is double and the type of the LOC_LOCAL symbol is | |
2475 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
2476 | are not combined in symbol-reading. */ | |
2477 | ||
548a89df TT |
2478 | struct symbol *sym2 |
2479 | = lookup_symbol_search_name (sym->search_name (), | |
ccf41c24 | 2480 | b, SEARCH_VAR_DOMAIN).symbol; |
13835d88 | 2481 | cb (sym->print_name (), sym2); |
c906108c SS |
2482 | } |
2483 | } | |
2c58c0a9 PA |
2484 | } |
2485 | ||
8f043999 JK |
2486 | /* Print all argument variables of the function of FRAME. |
2487 | Print them with values to STREAM. | |
12615cba PW |
2488 | If REGEXP is not NULL, only print argument variables whose name |
2489 | matches REGEXP. | |
2490 | If T_REGEXP is not NULL, only print argument variables whose type | |
2491 | matches T_REGEXP. | |
2492 | If no argument variables have been printed and !QUIET, prints a message | |
1f9e9ea5 | 2493 | explaining why no argument variables could be printed. */ |
8f043999 | 2494 | |
2c58c0a9 | 2495 | static void |
8480a37e | 2496 | print_frame_arg_vars (const frame_info_ptr &frame, |
12615cba PW |
2497 | bool quiet, |
2498 | const char *regexp, const char *t_regexp, | |
2499 | struct ui_file *stream) | |
2c58c0a9 PA |
2500 | { |
2501 | struct print_variable_and_value_data cb_data; | |
2502 | struct symbol *func; | |
1d4f5741 | 2503 | CORE_ADDR pc; |
6b09f134 LS |
2504 | std::optional<compiled_regex> preg; |
2505 | std::optional<compiled_regex> treg; | |
1d4f5741 PA |
2506 | |
2507 | if (!get_frame_pc_if_available (frame, &pc)) | |
2508 | { | |
12615cba | 2509 | if (!quiet) |
6cb06a8c TT |
2510 | gdb_printf (stream, |
2511 | _("PC unavailable, cannot determine args.\n")); | |
1d4f5741 PA |
2512 | return; |
2513 | } | |
2c58c0a9 PA |
2514 | |
2515 | func = get_frame_function (frame); | |
2516 | if (func == NULL) | |
2517 | { | |
12615cba | 2518 | if (!quiet) |
6cb06a8c | 2519 | gdb_printf (stream, _("No symbol table info available.\n")); |
2c58c0a9 PA |
2520 | return; |
2521 | } | |
2522 | ||
12615cba PW |
2523 | prepare_reg (regexp, &cb_data.preg); |
2524 | prepare_reg (t_regexp, &cb_data.treg); | |
8f043999 | 2525 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 | 2526 | cb_data.num_tabs = 0; |
d392224a | 2527 | cb_data.stream = stream; |
2c58c0a9 PA |
2528 | cb_data.values_printed = 0; |
2529 | ||
4aeddc50 | 2530 | iterate_over_block_arg_vars (func->value_block (), cb_data); |
033a42c2 | 2531 | |
12615cba PW |
2532 | if (!cb_data.values_printed && !quiet) |
2533 | { | |
2534 | if (regexp == NULL && t_regexp == NULL) | |
6cb06a8c | 2535 | gdb_printf (stream, _("No arguments.\n")); |
12615cba | 2536 | else |
6cb06a8c | 2537 | gdb_printf (stream, _("No matching arguments.\n")); |
12615cba | 2538 | } |
c906108c SS |
2539 | } |
2540 | ||
b16507e0 AB |
2541 | /* Implement the 'info args' command. */ |
2542 | ||
c906108c | 2543 | void |
12615cba | 2544 | info_args_command (const char *args, int from_tty) |
c906108c | 2545 | { |
b16507e0 | 2546 | info_print_options opts; |
4acfdd20 AB |
2547 | auto grp = make_info_print_options_def_group (&opts); |
2548 | gdb::option::process_options | |
2549 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
2550 | if (args != nullptr && *args == '\0') | |
2551 | args = nullptr; | |
12615cba | 2552 | |
e0700ba4 SM |
2553 | print_frame_arg_vars |
2554 | (get_selected_frame (_("No frame selected.")), | |
2555 | opts.quiet, args, | |
2556 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
2557 | gdb_stdout); | |
c906108c | 2558 | } |
c906108c | 2559 | \f |
c906108c | 2560 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
2561 | Can return zero under various legitimate circumstances. |
2562 | ||
2563 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
2564 | code address within the block returned. We use this to decide | |
2565 | which macros are in scope. */ | |
c906108c | 2566 | |
3977b71f | 2567 | const struct block * |
ae767bfb | 2568 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c | 2569 | { |
d729566a | 2570 | if (!has_stack_frames ()) |
8ea051c5 PA |
2571 | return 0; |
2572 | ||
206415a3 | 2573 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
2574 | } |
2575 | ||
2576 | /* Find a frame a certain number of levels away from FRAME. | |
2577 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
2578 | Positive means go to earlier frames (up); negative, the reverse. | |
2579 | The int that contains the number of levels is counted toward | |
2580 | zero as the frames for those levels are found. | |
2581 | If the top or bottom frame is reached, that frame is returned, | |
2582 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
2583 | how much farther the original request asked to go. */ | |
2584 | ||
bd2b40ac TT |
2585 | frame_info_ptr |
2586 | find_relative_frame (frame_info_ptr frame, int *level_offset_ptr) | |
c906108c | 2587 | { |
033a42c2 MK |
2588 | /* Going up is simple: just call get_prev_frame enough times or |
2589 | until the initial frame is reached. */ | |
c906108c SS |
2590 | while (*level_offset_ptr > 0) |
2591 | { | |
bd2b40ac | 2592 | frame_info_ptr prev = get_prev_frame (frame); |
433759f7 | 2593 | |
033a42c2 | 2594 | if (!prev) |
c906108c SS |
2595 | break; |
2596 | (*level_offset_ptr)--; | |
2597 | frame = prev; | |
2598 | } | |
033a42c2 | 2599 | |
c906108c | 2600 | /* Going down is just as simple. */ |
033a42c2 | 2601 | while (*level_offset_ptr < 0) |
c906108c | 2602 | { |
bd2b40ac | 2603 | frame_info_ptr next = get_next_frame (frame); |
433759f7 | 2604 | |
033a42c2 MK |
2605 | if (!next) |
2606 | break; | |
2607 | (*level_offset_ptr)++; | |
2608 | frame = next; | |
c906108c | 2609 | } |
033a42c2 | 2610 | |
c906108c SS |
2611 | return frame; |
2612 | } | |
2613 | ||
033a42c2 MK |
2614 | /* Select the frame up one or COUNT_EXP stack levels from the |
2615 | previously selected frame, and print it briefly. */ | |
c906108c | 2616 | |
c906108c | 2617 | static void |
d3d3328b | 2618 | up_silently_base (const char *count_exp) |
c906108c | 2619 | { |
bd2b40ac | 2620 | frame_info_ptr frame; |
033a42c2 MK |
2621 | int count = 1; |
2622 | ||
c906108c | 2623 | if (count_exp) |
bb518678 | 2624 | count = parse_and_eval_long (count_exp); |
c5aa993b | 2625 | |
033a42c2 MK |
2626 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2627 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 2628 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 2629 | select_frame (frame); |
c906108c SS |
2630 | } |
2631 | ||
2632 | static void | |
0b39b52e | 2633 | up_silently_command (const char *count_exp, int from_tty) |
c906108c | 2634 | { |
c5aa993b | 2635 | up_silently_base (count_exp); |
c906108c SS |
2636 | } |
2637 | ||
2638 | static void | |
0b39b52e | 2639 | up_command (const char *count_exp, int from_tty) |
c906108c SS |
2640 | { |
2641 | up_silently_base (count_exp); | |
77cd03e2 | 2642 | notify_user_selected_context_changed (USER_SELECTED_FRAME); |
c906108c SS |
2643 | } |
2644 | ||
033a42c2 MK |
2645 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
2646 | selected frame, and print it briefly. */ | |
c906108c | 2647 | |
c906108c | 2648 | static void |
d3d3328b | 2649 | down_silently_base (const char *count_exp) |
c906108c | 2650 | { |
bd2b40ac | 2651 | frame_info_ptr frame; |
033a42c2 | 2652 | int count = -1; |
f89b749f | 2653 | |
c906108c | 2654 | if (count_exp) |
bb518678 | 2655 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 2656 | |
033a42c2 MK |
2657 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2658 | if (count != 0 && count_exp == NULL) | |
c906108c | 2659 | { |
033a42c2 | 2660 | /* We only do this if COUNT_EXP is not specified. That way |
dda83cd7 SM |
2661 | "down" means to really go down (and let me know if that is |
2662 | impossible), but "down 9999" can be used to mean go all the | |
2663 | way down without getting an error. */ | |
c906108c | 2664 | |
033a42c2 | 2665 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
2666 | } |
2667 | ||
0f7d239c | 2668 | select_frame (frame); |
c906108c SS |
2669 | } |
2670 | ||
c906108c | 2671 | static void |
0b39b52e | 2672 | down_silently_command (const char *count_exp, int from_tty) |
c906108c SS |
2673 | { |
2674 | down_silently_base (count_exp); | |
c906108c SS |
2675 | } |
2676 | ||
2677 | static void | |
0b39b52e | 2678 | down_command (const char *count_exp, int from_tty) |
c906108c SS |
2679 | { |
2680 | down_silently_base (count_exp); | |
77cd03e2 | 2681 | notify_user_selected_context_changed (USER_SELECTED_FRAME); |
c906108c | 2682 | } |
033a42c2 | 2683 | |
8b93c638 | 2684 | void |
0b39b52e | 2685 | return_command (const char *retval_exp, int from_tty) |
c906108c | 2686 | { |
901900c4 MGD |
2687 | /* Initialize it just to avoid a GCC false warning. */ |
2688 | enum return_value_convention rv_conv = RETURN_VALUE_STRUCT_CONVENTION; | |
bd2b40ac | 2689 | frame_info_ptr thisframe; |
d80b854b | 2690 | struct gdbarch *gdbarch; |
c906108c | 2691 | struct symbol *thisfun; |
3d6d86c6 | 2692 | struct value *return_value = NULL; |
6a3a010b | 2693 | struct value *function = NULL; |
0b35f123 | 2694 | std::string query_prefix; |
c906108c | 2695 | |
5ed92fa8 UW |
2696 | thisframe = get_selected_frame ("No selected frame."); |
2697 | thisfun = get_frame_function (thisframe); | |
d80b854b | 2698 | gdbarch = get_frame_arch (thisframe); |
c906108c | 2699 | |
edb3359d DJ |
2700 | if (get_frame_type (get_current_frame ()) == INLINE_FRAME) |
2701 | error (_("Can not force return from an inlined function.")); | |
2702 | ||
fc70c2a0 AC |
2703 | /* Compute the return value. If the computation triggers an error, |
2704 | let it bail. If the return type can't be handled, set | |
2705 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
2706 | message. */ | |
c906108c SS |
2707 | if (retval_exp) |
2708 | { | |
4d01a485 | 2709 | expression_up retval_expr = parse_expression (retval_exp); |
c906108c SS |
2710 | struct type *return_type = NULL; |
2711 | ||
fc70c2a0 | 2712 | /* Compute the return value. Should the computation fail, this |
dda83cd7 | 2713 | call throws an error. */ |
43048e46 | 2714 | return_value = retval_expr->evaluate (); |
c906108c | 2715 | |
fc70c2a0 | 2716 | /* Cast return value to the return type of the function. Should |
dda83cd7 | 2717 | the cast fail, this call throws an error. */ |
c906108c | 2718 | if (thisfun != NULL) |
27710edb | 2719 | return_type = thisfun->type ()->target_type (); |
c906108c | 2720 | if (return_type == NULL) |
24b21115 | 2721 | { |
2adab65c TT |
2722 | if (retval_expr->first_opcode () != UNOP_CAST |
2723 | && retval_expr->first_opcode () != UNOP_CAST_TYPE) | |
61ff14c6 JK |
2724 | error (_("Return value type not available for selected " |
2725 | "stack frame.\n" | |
2726 | "Please use an explicit cast of the value to return.")); | |
d0c97917 | 2727 | return_type = return_value->type (); |
61ff14c6 | 2728 | } |
f168693b | 2729 | return_type = check_typedef (return_type); |
c906108c SS |
2730 | return_value = value_cast (return_type, return_value); |
2731 | ||
fc70c2a0 | 2732 | /* Make sure the value is fully evaluated. It may live in the |
dda83cd7 | 2733 | stack frame we're about to pop. */ |
3ee3b270 | 2734 | if (return_value->lazy ()) |
78259c36 | 2735 | return_value->fetch_lazy (); |
c906108c | 2736 | |
6a3a010b | 2737 | if (thisfun != NULL) |
63e43d3a | 2738 | function = read_var_value (thisfun, NULL, thisframe); |
6a3a010b | 2739 | |
bbfdfe1c | 2740 | rv_conv = RETURN_VALUE_REGISTER_CONVENTION; |
78134374 | 2741 | if (return_type->code () == TYPE_CODE_VOID) |
667e784f | 2742 | /* If the return-type is "void", don't try to find the |
dda83cd7 SM |
2743 | return-value's location. However, do still evaluate the |
2744 | return expression so that, even when the expression result | |
2745 | is discarded, side effects such as "return i++" still | |
2746 | occur. */ | |
667e784f | 2747 | return_value = NULL; |
bbfdfe1c | 2748 | else if (thisfun != NULL) |
fc70c2a0 | 2749 | { |
d0c97917 | 2750 | if (is_nocall_function (check_typedef (function->type ()))) |
0b35f123 LS |
2751 | { |
2752 | query_prefix = | |
2753 | string_printf ("Function '%s' does not follow the target " | |
2754 | "calling convention.\n" | |
2755 | "If you continue, setting the return value " | |
2756 | "will probably lead to unpredictable " | |
2757 | "behaviors.\n", | |
2758 | thisfun->print_name ()); | |
2759 | } | |
2760 | ||
bbfdfe1c DM |
2761 | rv_conv = struct_return_convention (gdbarch, function, return_type); |
2762 | if (rv_conv == RETURN_VALUE_STRUCT_CONVENTION | |
2763 | || rv_conv == RETURN_VALUE_ABI_RETURNS_ADDRESS) | |
2764 | { | |
2765 | query_prefix = "The location at which to store the " | |
2766 | "function's return value is unknown.\n" | |
2767 | "If you continue, the return value " | |
2768 | "that you specified will be ignored.\n"; | |
2769 | return_value = NULL; | |
2770 | } | |
fc70c2a0 | 2771 | } |
c906108c SS |
2772 | } |
2773 | ||
fc70c2a0 AC |
2774 | /* Does an interactive user really want to do this? Include |
2775 | information, such as how well GDB can handle the return value, in | |
2776 | the query message. */ | |
2777 | if (from_tty) | |
2778 | { | |
2779 | int confirmed; | |
433759f7 | 2780 | |
fc70c2a0 | 2781 | if (thisfun == NULL) |
e2e0b3e5 | 2782 | confirmed = query (_("%sMake selected stack frame return now? "), |
0b35f123 | 2783 | query_prefix.c_str ()); |
fc70c2a0 | 2784 | else |
743649fd | 2785 | { |
5f9c5a63 | 2786 | if (TYPE_NO_RETURN (thisfun->type ())) |
d35b90fb | 2787 | warning (_("Function does not return normally to caller.")); |
0b35f123 LS |
2788 | confirmed = query (_("%sMake %s return now? "), |
2789 | query_prefix.c_str (), | |
987012b8 | 2790 | thisfun->print_name ()); |
743649fd | 2791 | } |
fc70c2a0 | 2792 | if (!confirmed) |
8a3fe4f8 | 2793 | error (_("Not confirmed")); |
fc70c2a0 | 2794 | } |
c906108c | 2795 | |
a45ae3ed UW |
2796 | /* Discard the selected frame and all frames inner-to it. */ |
2797 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 2798 | |
a1f5b845 | 2799 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
2800 | if (return_value != NULL) |
2801 | { | |
d0c97917 | 2802 | struct type *return_type = return_value->type (); |
9c742269 SM |
2803 | regcache *regcache = get_thread_regcache (inferior_thread ()); |
2804 | struct gdbarch *cache_arch = regcache->arch (); | |
42e2132c | 2805 | |
bbfdfe1c DM |
2806 | gdb_assert (rv_conv != RETURN_VALUE_STRUCT_CONVENTION |
2807 | && rv_conv != RETURN_VALUE_ABI_RETURNS_ADDRESS); | |
4e1d2f58 | 2808 | gdbarch_return_value_as_value |
9c742269 | 2809 | (cache_arch, function, return_type, regcache, NULL /*read*/, |
efaf1ae0 | 2810 | return_value->contents ().data () /*write*/); |
fc70c2a0 | 2811 | } |
1a2aab69 | 2812 | |
fc70c2a0 AC |
2813 | /* If we are at the end of a call dummy now, pop the dummy frame |
2814 | too. */ | |
e8bcf01f AC |
2815 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
2816 | frame_pop (get_current_frame ()); | |
1a2aab69 | 2817 | |
edbbff4a | 2818 | select_frame (get_current_frame ()); |
c906108c | 2819 | /* If interactive, print the frame that is now current. */ |
c906108c | 2820 | if (from_tty) |
edbbff4a | 2821 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
c906108c SS |
2822 | } |
2823 | ||
39f0c204 AB |
2824 | /* Find the most inner frame in the current stack for a function called |
2825 | FUNCTION_NAME. If no matching frame is found return NULL. */ | |
c906108c | 2826 | |
bd2b40ac | 2827 | static frame_info_ptr |
39f0c204 | 2828 | find_frame_for_function (const char *function_name) |
c906108c | 2829 | { |
39f0c204 AB |
2830 | /* Used to hold the lower and upper addresses for each of the |
2831 | SYMTAB_AND_LINEs found for functions matching FUNCTION_NAME. */ | |
2832 | struct function_bounds | |
2833 | { | |
2834 | CORE_ADDR low, high; | |
2835 | }; | |
bd2b40ac | 2836 | frame_info_ptr frame; |
39f0c204 | 2837 | bool found = false; |
c906108c | 2838 | int level = 1; |
c906108c | 2839 | |
39f0c204 | 2840 | gdb_assert (function_name != NULL); |
c906108c | 2841 | |
edbbff4a | 2842 | frame = get_current_frame (); |
6c5b2ebe | 2843 | std::vector<symtab_and_line> sals |
39f0c204 AB |
2844 | = decode_line_with_current_source (function_name, |
2845 | DECODE_LINE_FUNFIRSTLINE); | |
0b868b60 | 2846 | gdb::def_vector<function_bounds> func_bounds (sals.size ()); |
39f0c204 | 2847 | for (size_t i = 0; i < sals.size (); i++) |
c906108c | 2848 | { |
6c5b2ebe | 2849 | if (sals[i].pspace != current_program_space) |
f8eba3c6 | 2850 | func_bounds[i].low = func_bounds[i].high = 0; |
6c5b2ebe PA |
2851 | else if (sals[i].pc == 0 |
2852 | || find_pc_partial_function (sals[i].pc, NULL, | |
f8eba3c6 TT |
2853 | &func_bounds[i].low, |
2854 | &func_bounds[i].high) == 0) | |
39f0c204 | 2855 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
2856 | } |
2857 | ||
2858 | do | |
2859 | { | |
6c5b2ebe | 2860 | for (size_t i = 0; (i < sals.size () && !found); i++) |
033a42c2 MK |
2861 | found = (get_frame_pc (frame) >= func_bounds[i].low |
2862 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
2863 | if (!found) |
2864 | { | |
2865 | level = 1; | |
033a42c2 | 2866 | frame = find_relative_frame (frame, &level); |
c906108c SS |
2867 | } |
2868 | } | |
2869 | while (!found && level == 0); | |
2870 | ||
c906108c | 2871 | if (!found) |
39f0c204 AB |
2872 | frame = NULL; |
2873 | ||
2874 | return frame; | |
2875 | } | |
2876 | ||
5d707134 PA |
2877 | /* The qcs command line flags for the "frame apply" commands. Keep |
2878 | this in sync with the "thread apply" commands. */ | |
2879 | ||
2880 | using qcs_flag_option_def | |
2881 | = gdb::option::flag_option_def<qcs_flags>; | |
2882 | ||
2883 | static const gdb::option::option_def fr_qcs_flags_option_defs[] = { | |
2884 | qcs_flag_option_def { | |
2885 | "q", [] (qcs_flags *opt) { return &opt->quiet; }, | |
2886 | N_("Disables printing the frame location information."), | |
2887 | }, | |
2888 | ||
2889 | qcs_flag_option_def { | |
2890 | "c", [] (qcs_flags *opt) { return &opt->cont; }, | |
2891 | N_("Print any error raised by COMMAND and continue."), | |
2892 | }, | |
2893 | ||
2894 | qcs_flag_option_def { | |
2895 | "s", [] (qcs_flags *opt) { return &opt->silent; }, | |
2896 | N_("Silently ignore any errors or empty output produced by COMMAND."), | |
2897 | }, | |
2898 | }; | |
2899 | ||
2900 | /* Create an option_def_group array for all the "frame apply" options, | |
2901 | with FLAGS and SET_BT_OPTS as context. */ | |
2902 | ||
2903 | static inline std::array<gdb::option::option_def_group, 2> | |
2904 | make_frame_apply_options_def_group (qcs_flags *flags, | |
2905 | set_backtrace_options *set_bt_opts) | |
2906 | { | |
2907 | return {{ | |
2908 | { {fr_qcs_flags_option_defs}, flags }, | |
2909 | { {set_backtrace_option_defs}, set_bt_opts }, | |
2910 | }}; | |
2911 | } | |
2912 | ||
6a70eb7d PW |
2913 | /* Apply a GDB command to all stack frames, or a set of identified frames, |
2914 | or innermost COUNT frames. | |
2915 | With a negative COUNT, apply command on outermost -COUNT frames. | |
2916 | ||
2917 | frame apply 3 info frame Apply 'info frame' to frames 0, 1, 2 | |
2918 | frame apply -3 info frame Apply 'info frame' to outermost 3 frames. | |
2919 | frame apply all x/i $pc Apply 'x/i $pc' cmd to all frames. | |
2920 | frame apply all -s p local_var_no_idea_in_which_frame | |
dda83cd7 SM |
2921 | If a frame has a local variable called |
2922 | local_var_no_idea_in_which_frame, print frame | |
2923 | and value of local_var_no_idea_in_which_frame. | |
6a70eb7d | 2924 | frame apply all -s -q p local_var_no_idea_in_which_frame |
dda83cd7 | 2925 | Same as before, but only print the variable value. |
6a70eb7d | 2926 | frame apply level 2-5 0 4-7 -s p i = i + 1 |
dda83cd7 SM |
2927 | Adds 1 to the variable i in the specified frames. |
2928 | Note that i will be incremented twice in | |
2929 | frames 4 and 5. */ | |
6a70eb7d PW |
2930 | |
2931 | /* Apply a GDB command to COUNT stack frames, starting at TRAILING. | |
2932 | CMD starts with 0 or more qcs flags followed by the GDB command to apply. | |
2933 | COUNT -1 means all frames starting at TRAILING. WHICH_COMMAND is used | |
2934 | for error messages. */ | |
2935 | ||
2936 | static void | |
2937 | frame_apply_command_count (const char *which_command, | |
2938 | const char *cmd, int from_tty, | |
bd2b40ac | 2939 | frame_info_ptr trailing, int count) |
6a70eb7d PW |
2940 | { |
2941 | qcs_flags flags; | |
5d707134 | 2942 | set_backtrace_options set_bt_opts = user_set_backtrace_options; |
6a70eb7d | 2943 | |
5d707134 PA |
2944 | auto group = make_frame_apply_options_def_group (&flags, &set_bt_opts); |
2945 | gdb::option::process_options | |
2946 | (&cmd, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group); | |
2947 | ||
2948 | validate_flags_qcs (which_command, &flags); | |
6a70eb7d PW |
2949 | |
2950 | if (cmd == NULL || *cmd == '\0') | |
2951 | error (_("Please specify a command to apply on the selected frames")); | |
2952 | ||
2953 | /* The below will restore the current inferior/thread/frame. | |
2954 | Usually, only the frame is effectively to be restored. | |
2955 | But in case CMD switches of inferior/thread, better restore | |
2956 | these also. */ | |
2957 | scoped_restore_current_thread restore_thread; | |
2958 | ||
5d707134 PA |
2959 | /* These options are handled quite deep in the unwind machinery, so |
2960 | we get to pass them down by swapping globals. */ | |
2961 | scoped_restore restore_set_backtrace_options | |
2962 | = make_scoped_restore (&user_set_backtrace_options, set_bt_opts); | |
2963 | ||
bd2b40ac | 2964 | for (frame_info_ptr fi = trailing; fi && count--; fi = get_prev_frame (fi)) |
6a70eb7d PW |
2965 | { |
2966 | QUIT; | |
2967 | ||
2968 | select_frame (fi); | |
a70b8144 | 2969 | try |
6a70eb7d PW |
2970 | { |
2971 | std::string cmd_result; | |
2972 | { | |
2973 | /* In case CMD switches of inferior/thread/frame, the below | |
2974 | restores the inferior/thread/frame. FI can then be | |
2975 | set to the selected frame. */ | |
2976 | scoped_restore_current_thread restore_fi_current_frame; | |
2977 | ||
84a6adfd TV |
2978 | execute_command_to_string |
2979 | (cmd_result, cmd, from_tty, gdb_stdout->term_out ()); | |
6a70eb7d PW |
2980 | } |
2981 | fi = get_selected_frame (_("frame apply " | |
2982 | "unable to get selected frame.")); | |
2983 | if (!flags.silent || cmd_result.length () > 0) | |
2984 | { | |
2985 | if (!flags.quiet) | |
2986 | print_stack_frame (fi, 1, LOCATION, 0); | |
6cb06a8c | 2987 | gdb_printf ("%s", cmd_result.c_str ()); |
6a70eb7d PW |
2988 | } |
2989 | } | |
230d2906 | 2990 | catch (const gdb_exception_error &ex) |
6a70eb7d PW |
2991 | { |
2992 | fi = get_selected_frame (_("frame apply " | |
2993 | "unable to get selected frame.")); | |
2994 | if (!flags.silent) | |
2995 | { | |
2996 | if (!flags.quiet) | |
2997 | print_stack_frame (fi, 1, LOCATION, 0); | |
2998 | if (flags.cont) | |
6cb06a8c | 2999 | gdb_printf ("%s\n", ex.what ()); |
6a70eb7d | 3000 | else |
eedc3f4f | 3001 | throw; |
6a70eb7d PW |
3002 | } |
3003 | } | |
6a70eb7d PW |
3004 | } |
3005 | } | |
3006 | ||
5d707134 PA |
3007 | /* Completer for the "frame apply ..." commands. */ |
3008 | ||
3009 | static void | |
3010 | frame_apply_completer (completion_tracker &tracker, const char *text) | |
3011 | { | |
3012 | const auto group = make_frame_apply_options_def_group (nullptr, nullptr); | |
3013 | if (gdb::option::complete_options | |
3014 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
3015 | return; | |
3016 | ||
3017 | complete_nested_command_line (tracker, text); | |
3018 | } | |
3019 | ||
3020 | /* Completer for the "frame apply" commands. */ | |
3021 | ||
3022 | static void | |
3023 | frame_apply_level_cmd_completer (struct cmd_list_element *ignore, | |
3024 | completion_tracker &tracker, | |
3025 | const char *text, const char */*word*/) | |
3026 | { | |
3027 | /* Do this explicitly because there's an early return below. */ | |
3028 | tracker.set_use_custom_word_point (true); | |
3029 | ||
3030 | number_or_range_parser levels (text); | |
3031 | ||
3032 | /* Skip the LEVEL list to find the options and command args. */ | |
3033 | try | |
3034 | { | |
3035 | while (!levels.finished ()) | |
3036 | { | |
3037 | /* Call for effect. */ | |
3038 | levels.get_number (); | |
3039 | ||
3040 | if (levels.in_range ()) | |
3041 | levels.skip_range (); | |
3042 | } | |
3043 | } | |
3044 | catch (const gdb_exception_error &ex) | |
3045 | { | |
3046 | /* get_number throws if it parses a negative number, for | |
3047 | example. But a seemingly negative number may be the start of | |
3048 | an option instead. */ | |
3049 | } | |
3050 | ||
3051 | const char *cmd = levels.cur_tok (); | |
3052 | ||
3053 | if (cmd == text) | |
3054 | { | |
3055 | /* No level list yet. */ | |
3056 | return; | |
3057 | } | |
3058 | ||
3059 | /* Check if we're past a valid LEVEL already. */ | |
3060 | if (levels.finished () | |
3061 | && cmd > text && !isspace (cmd[-1])) | |
3062 | return; | |
3063 | ||
3064 | /* We're past LEVELs, advance word point. */ | |
3065 | tracker.advance_custom_word_point_by (cmd - text); | |
3066 | text = cmd; | |
3067 | ||
3068 | frame_apply_completer (tracker, text); | |
3069 | } | |
3070 | ||
3071 | /* Completer for the "frame apply all" command. */ | |
3072 | ||
3073 | void | |
3074 | frame_apply_all_cmd_completer (struct cmd_list_element *ignore, | |
3075 | completion_tracker &tracker, | |
3076 | const char *text, const char */*word*/) | |
3077 | { | |
3078 | frame_apply_completer (tracker, text); | |
3079 | } | |
3080 | ||
3081 | /* Completer for the "frame apply COUNT" command. */ | |
3082 | ||
3083 | static void | |
3084 | frame_apply_cmd_completer (struct cmd_list_element *ignore, | |
3085 | completion_tracker &tracker, | |
3086 | const char *text, const char */*word*/) | |
3087 | { | |
3088 | const char *cmd = text; | |
3089 | ||
3090 | int count = get_number_trailer (&cmd, 0); | |
3091 | if (count == 0) | |
3092 | return; | |
3093 | ||
3094 | /* Check if we're past a valid COUNT already. */ | |
3095 | if (cmd > text && !isspace (cmd[-1])) | |
3096 | return; | |
3097 | ||
3098 | /* We're past COUNT, advance word point. */ | |
3099 | tracker.advance_custom_word_point_by (cmd - text); | |
3100 | text = cmd; | |
3101 | ||
3102 | frame_apply_completer (tracker, text); | |
3103 | } | |
3104 | ||
6a70eb7d PW |
3105 | /* Implementation of the "frame apply level" command. */ |
3106 | ||
3107 | static void | |
3108 | frame_apply_level_command (const char *cmd, int from_tty) | |
3109 | { | |
841de120 | 3110 | if (!target_has_stack ()) |
6a70eb7d PW |
3111 | error (_("No stack.")); |
3112 | ||
3113 | bool level_found = false; | |
3114 | const char *levels_str = cmd; | |
3115 | number_or_range_parser levels (levels_str); | |
3116 | ||
3117 | /* Skip the LEVEL list to find the flags and command args. */ | |
3118 | while (!levels.finished ()) | |
3119 | { | |
8d49165d TT |
3120 | /* Call for effect. */ |
3121 | levels.get_number (); | |
6a70eb7d PW |
3122 | |
3123 | level_found = true; | |
3124 | if (levels.in_range ()) | |
3125 | levels.skip_range (); | |
3126 | } | |
3127 | ||
3128 | if (!level_found) | |
3129 | error (_("Missing or invalid LEVEL... argument")); | |
3130 | ||
3131 | cmd = levels.cur_tok (); | |
3132 | ||
3133 | /* Redo the LEVELS parsing, but applying COMMAND. */ | |
3134 | levels.init (levels_str); | |
3135 | while (!levels.finished ()) | |
3136 | { | |
3137 | const int level_beg = levels.get_number (); | |
3138 | int n_frames; | |
3139 | ||
3140 | if (levels.in_range ()) | |
3141 | { | |
3142 | n_frames = levels.end_value () - level_beg + 1; | |
3143 | levels.skip_range (); | |
3144 | } | |
3145 | else | |
3146 | n_frames = 1; | |
3147 | ||
3148 | frame_apply_command_count ("frame apply level", cmd, from_tty, | |
3149 | leading_innermost_frame (level_beg), n_frames); | |
3150 | } | |
3151 | } | |
3152 | ||
3153 | /* Implementation of the "frame apply all" command. */ | |
3154 | ||
3155 | static void | |
3156 | frame_apply_all_command (const char *cmd, int from_tty) | |
3157 | { | |
841de120 | 3158 | if (!target_has_stack ()) |
6a70eb7d PW |
3159 | error (_("No stack.")); |
3160 | ||
3161 | frame_apply_command_count ("frame apply all", cmd, from_tty, | |
3162 | get_current_frame (), INT_MAX); | |
3163 | } | |
3164 | ||
3165 | /* Implementation of the "frame apply" command. */ | |
3166 | ||
3167 | static void | |
3168 | frame_apply_command (const char* cmd, int from_tty) | |
3169 | { | |
3170 | int count; | |
bd2b40ac | 3171 | frame_info_ptr trailing; |
6a70eb7d | 3172 | |
841de120 | 3173 | if (!target_has_stack ()) |
6a70eb7d PW |
3174 | error (_("No stack.")); |
3175 | ||
3176 | if (cmd == NULL) | |
3177 | error (_("Missing COUNT argument.")); | |
3178 | count = get_number_trailer (&cmd, 0); | |
3179 | if (count == 0) | |
3180 | error (_("Invalid COUNT argument.")); | |
3181 | ||
3182 | if (count < 0) | |
3183 | { | |
3184 | trailing = trailing_outermost_frame (-count); | |
3185 | count = -1; | |
3186 | } | |
3187 | else | |
3188 | trailing = get_current_frame (); | |
3189 | ||
3190 | frame_apply_command_count ("frame apply", cmd, from_tty, | |
3191 | trailing, count); | |
3192 | } | |
3193 | ||
3194 | /* Implementation of the "faas" command. */ | |
3195 | ||
3196 | static void | |
3197 | faas_command (const char *cmd, int from_tty) | |
3198 | { | |
e0fad1ea PW |
3199 | if (cmd == NULL || *cmd == '\0') |
3200 | error (_("Please specify a command to apply on all frames")); | |
6a70eb7d PW |
3201 | std::string expanded = std::string ("frame apply all -s ") + cmd; |
3202 | execute_command (expanded.c_str (), from_tty); | |
3203 | } | |
3204 | ||
3205 | ||
f67ffa6a AB |
3206 | /* Find inner-mode frame with frame address ADDRESS. Return NULL if no |
3207 | matching frame can be found. */ | |
3208 | ||
bd2b40ac | 3209 | static frame_info_ptr |
f67ffa6a AB |
3210 | find_frame_for_address (CORE_ADDR address) |
3211 | { | |
3212 | struct frame_id id; | |
bd2b40ac | 3213 | frame_info_ptr fid; |
f67ffa6a AB |
3214 | |
3215 | id = frame_id_build_wild (address); | |
3216 | ||
3217 | /* If (s)he specifies the frame with an address, he deserves | |
3218 | what (s)he gets. Still, give the highest one that matches. | |
3219 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
3220 | know). */ | |
3221 | for (fid = get_current_frame (); | |
3222 | fid != NULL; | |
3223 | fid = get_prev_frame (fid)) | |
3224 | { | |
a0cbd650 | 3225 | if (id == get_frame_id (fid)) |
f67ffa6a | 3226 | { |
bd2b40ac | 3227 | frame_info_ptr prev_frame; |
f67ffa6a AB |
3228 | |
3229 | while (1) | |
3230 | { | |
3231 | prev_frame = get_prev_frame (fid); | |
3232 | if (!prev_frame | |
a0cbd650 | 3233 | || id != get_frame_id (prev_frame)) |
f67ffa6a AB |
3234 | break; |
3235 | fid = prev_frame; | |
3236 | } | |
3237 | return fid; | |
3238 | } | |
3239 | } | |
3240 | return NULL; | |
3241 | } | |
3242 | ||
3243 | \f | |
3244 | ||
3245 | /* Commands with a prefix of `frame apply'. */ | |
3246 | static struct cmd_list_element *frame_apply_cmd_list = NULL; | |
3247 | ||
6a70eb7d | 3248 | /* Commands with a prefix of `frame'. */ |
f67ffa6a AB |
3249 | static struct cmd_list_element *frame_cmd_list = NULL; |
3250 | ||
3251 | /* Commands with a prefix of `select frame'. */ | |
3252 | static struct cmd_list_element *select_frame_cmd_list = NULL; | |
3253 | ||
3254 | /* Commands with a prefix of `info frame'. */ | |
3255 | static struct cmd_list_element *info_frame_cmd_list = NULL; | |
6a70eb7d | 3256 | |
6c265988 | 3257 | void _initialize_stack (); |
c906108c | 3258 | void |
6c265988 | 3259 | _initialize_stack () |
c906108c | 3260 | { |
f67ffa6a | 3261 | struct cmd_list_element *cmd; |
6a70eb7d | 3262 | |
1bedd215 AC |
3263 | add_com ("return", class_stack, return_command, _("\ |
3264 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
3265 | Control remains in the debugger, but when you continue\n\ |
3266 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
3267 | If an argument is given, it is an expression for the value to return.")); |
3268 | ||
3269 | add_com ("up", class_stack, up_command, _("\ | |
3270 | Select and print stack frame that called this one.\n\ | |
3271 | An argument says how many frames up to go.")); | |
3272 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
3273 | Same as the `up' command, but does not print anything.\n\ | |
3274 | This is useful in command scripts.")); | |
3275 | ||
3947f654 SM |
3276 | cmd_list_element *down_cmd |
3277 | = add_com ("down", class_stack, down_command, _("\ | |
1bedd215 AC |
3278 | Select and print stack frame called by this one.\n\ |
3279 | An argument says how many frames down to go.")); | |
3947f654 SM |
3280 | add_com_alias ("do", down_cmd, class_stack, 1); |
3281 | add_com_alias ("dow", down_cmd, class_stack, 1); | |
1bedd215 AC |
3282 | add_com ("down-silently", class_support, down_silently_command, _("\ |
3283 | Same as the `down' command, but does not print anything.\n\ | |
3284 | This is useful in command scripts.")); | |
c906108c | 3285 | |
3947f654 SM |
3286 | cmd_list_element *frame_cmd_el |
3287 | = add_prefix_cmd ("frame", class_stack, | |
3288 | &frame_cmd.base_command, _("\ | |
f67ffa6a AB |
3289 | Select and print a stack frame.\n\ |
3290 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ | |
3291 | A single numerical argument specifies the frame to select."), | |
3947f654 SM |
3292 | &frame_cmd_list, 1, &cmdlist); |
3293 | add_com_alias ("f", frame_cmd_el, class_stack, 1); | |
c906108c | 3294 | |
5d707134 | 3295 | #define FRAME_APPLY_OPTION_HELP "\ |
6a70eb7d | 3296 | Prints the frame location information followed by COMMAND output.\n\ |
5d707134 PA |
3297 | \n\ |
3298 | By default, an error raised during the execution of COMMAND\n\ | |
3299 | aborts \"frame apply\".\n\ | |
3300 | \n\ | |
3301 | Options:\n\ | |
3302 | %OPTIONS%" | |
3303 | ||
3304 | const auto frame_apply_opts | |
3305 | = make_frame_apply_options_def_group (nullptr, nullptr); | |
3306 | ||
8abfcabc | 3307 | static std::string frame_apply_cmd_help = gdb::option::build_help (_("\ |
5d707134 PA |
3308 | Apply a command to a number of frames.\n\ |
3309 | Usage: frame apply COUNT [OPTION]... COMMAND\n\ | |
6a70eb7d | 3310 | With a negative COUNT argument, applies the command on outermost -COUNT frames.\n" |
5d707134 PA |
3311 | FRAME_APPLY_OPTION_HELP), |
3312 | frame_apply_opts); | |
6a70eb7d | 3313 | |
5d707134 PA |
3314 | cmd = add_prefix_cmd ("apply", class_stack, frame_apply_command, |
3315 | frame_apply_cmd_help.c_str (), | |
2f822da5 | 3316 | &frame_apply_cmd_list, 1, |
5d707134 PA |
3317 | &frame_cmd_list); |
3318 | set_cmd_completer_handle_brkchars (cmd, frame_apply_cmd_completer); | |
3319 | ||
8abfcabc | 3320 | static std::string frame_apply_all_cmd_help = gdb::option::build_help (_("\ |
6a70eb7d PW |
3321 | Apply a command to all frames.\n\ |
3322 | \n\ | |
5d707134 PA |
3323 | Usage: frame apply all [OPTION]... COMMAND\n" |
3324 | FRAME_APPLY_OPTION_HELP), | |
3325 | frame_apply_opts); | |
6a70eb7d | 3326 | |
5d707134 PA |
3327 | cmd = add_cmd ("all", class_stack, frame_apply_all_command, |
3328 | frame_apply_all_cmd_help.c_str (), | |
3329 | &frame_apply_cmd_list); | |
3330 | set_cmd_completer_handle_brkchars (cmd, frame_apply_all_cmd_completer); | |
3331 | ||
8abfcabc | 3332 | static std::string frame_apply_level_cmd_help = gdb::option::build_help (_("\ |
6a70eb7d PW |
3333 | Apply a command to a list of frames.\n\ |
3334 | \n\ | |
5d707134 PA |
3335 | Usage: frame apply level LEVEL... [OPTION]... COMMAND\n\ |
3336 | LEVEL is a space-separated list of levels of frames to apply COMMAND on.\n" | |
3337 | FRAME_APPLY_OPTION_HELP), | |
3338 | frame_apply_opts); | |
3339 | ||
3340 | cmd = add_cmd ("level", class_stack, frame_apply_level_command, | |
3341 | frame_apply_level_cmd_help.c_str (), | |
f67ffa6a | 3342 | &frame_apply_cmd_list); |
5d707134 | 3343 | set_cmd_completer_handle_brkchars (cmd, frame_apply_level_cmd_completer); |
6a70eb7d | 3344 | |
5d707134 | 3345 | cmd = add_com ("faas", class_stack, faas_command, _("\ |
6a70eb7d | 3346 | Apply a command to all frames (ignoring errors and empty output).\n\ |
5d707134 PA |
3347 | Usage: faas [OPTION]... COMMAND\n\ |
3348 | shortcut for 'frame apply all -s [OPTION]... COMMAND'\n\ | |
3349 | See \"help frame apply all\" for available options.")); | |
3350 | set_cmd_completer_handle_brkchars (cmd, frame_apply_all_cmd_completer); | |
f67ffa6a | 3351 | |
f67ffa6a AB |
3352 | add_cmd ("address", class_stack, &frame_cmd.address, |
3353 | _("\ | |
590042fc | 3354 | Select and print a stack frame by stack address.\n\ |
f67ffa6a AB |
3355 | \n\ |
3356 | Usage: frame address STACK-ADDRESS"), | |
3357 | &frame_cmd_list); | |
3358 | ||
3359 | add_cmd ("view", class_stack, &frame_cmd.view, | |
3360 | _("\ | |
3361 | View a stack frame that might be outside the current backtrace.\n\ | |
3362 | \n\ | |
3363 | Usage: frame view STACK-ADDRESS\n\ | |
3364 | frame view STACK-ADDRESS PC-ADDRESS"), | |
3365 | &frame_cmd_list); | |
3366 | ||
3367 | cmd = add_cmd ("function", class_stack, &frame_cmd.function, | |
3368 | _("\ | |
3369 | Select and print a stack frame by function name.\n\ | |
3370 | \n\ | |
3371 | Usage: frame function NAME\n\ | |
3372 | \n\ | |
3373 | The innermost frame that visited function NAME is selected."), | |
3374 | &frame_cmd_list); | |
3375 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3376 | ||
3377 | ||
3378 | add_cmd ("level", class_stack, &frame_cmd.level, | |
3379 | _("\ | |
3380 | Select and print a stack frame by level.\n\ | |
3381 | \n\ | |
3382 | Usage: frame level LEVEL"), | |
3383 | &frame_cmd_list); | |
3384 | ||
3385 | cmd = add_prefix_cmd_suppress_notification ("select-frame", class_stack, | |
3386 | &select_frame_cmd.base_command, _("\ | |
1bedd215 | 3387 | Select a stack frame without printing anything.\n\ |
f67ffa6a | 3388 | A single numerical argument specifies the frame to select."), |
2f822da5 | 3389 | &select_frame_cmd_list, 1, &cmdlist, |
f67ffa6a AB |
3390 | &cli_suppress_notification.user_selected_context); |
3391 | ||
3392 | add_cmd_suppress_notification ("address", class_stack, | |
3393 | &select_frame_cmd.address, _("\ | |
3394 | Select a stack frame by stack address.\n\ | |
3395 | \n\ | |
3396 | Usage: select-frame address STACK-ADDRESS"), | |
3397 | &select_frame_cmd_list, | |
3398 | &cli_suppress_notification.user_selected_context); | |
3399 | ||
3400 | ||
3401 | add_cmd_suppress_notification ("view", class_stack, | |
3402 | &select_frame_cmd.view, _("\ | |
3403 | Select a stack frame that might be outside the current backtrace.\n\ | |
3404 | \n\ | |
3405 | Usage: select-frame view STACK-ADDRESS\n\ | |
3406 | select-frame view STACK-ADDRESS PC-ADDRESS"), | |
3407 | &select_frame_cmd_list, | |
4034d0ff | 3408 | &cli_suppress_notification.user_selected_context); |
c906108c | 3409 | |
f67ffa6a AB |
3410 | cmd = add_cmd_suppress_notification ("function", class_stack, |
3411 | &select_frame_cmd.function, _("\ | |
3412 | Select a stack frame by function name.\n\ | |
3413 | \n\ | |
3414 | Usage: select-frame function NAME"), | |
3415 | &select_frame_cmd_list, | |
3416 | &cli_suppress_notification.user_selected_context); | |
3417 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3418 | ||
3419 | add_cmd_suppress_notification ("level", class_stack, | |
3420 | &select_frame_cmd.level, _("\ | |
3421 | Select a stack frame by level.\n\ | |
3422 | \n\ | |
3423 | Usage: select-frame level LEVEL"), | |
3424 | &select_frame_cmd_list, | |
3425 | &cli_suppress_notification.user_selected_context); | |
3426 | ||
d4c16835 PA |
3427 | const auto backtrace_opts |
3428 | = make_backtrace_options_def_group (nullptr, nullptr, nullptr); | |
3429 | ||
3430 | static std::string backtrace_help | |
8abfcabc | 3431 | = gdb::option::build_help (_("\ |
1bedd215 | 3432 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ |
d4c16835 PA |
3433 | Usage: backtrace [OPTION]... [QUALIFIER]... [COUNT | -COUNT]\n\ |
3434 | \n\ | |
3435 | Options:\n\ | |
590042fc PW |
3436 | %OPTIONS%\n\ |
3437 | \n\ | |
d4c16835 PA |
3438 | For backward compatibility, the following qualifiers are supported:\n\ |
3439 | \n\ | |
3440 | full - same as -full option.\n\ | |
3441 | no-filters - same as -no-filters option.\n\ | |
3442 | hide - same as -hide.\n\ | |
3443 | \n\ | |
3444 | With a negative COUNT, print outermost -COUNT frames."), | |
3445 | backtrace_opts); | |
3446 | ||
3947f654 SM |
3447 | cmd_list_element *backtrace_cmd |
3448 | = add_com ("backtrace", class_stack, backtrace_command, | |
3449 | backtrace_help.c_str ()); | |
3450 | set_cmd_completer_handle_brkchars (backtrace_cmd, backtrace_command_completer); | |
d4c16835 | 3451 | |
3947f654 | 3452 | add_com_alias ("bt", backtrace_cmd, class_stack, 0); |
c906108c | 3453 | |
3947f654 | 3454 | add_com_alias ("where", backtrace_cmd, class_stack, 0); |
e0f25bd9 SM |
3455 | cmd_list_element *info_stack_cmd |
3456 | = add_info ("stack", backtrace_command, | |
3457 | _("Backtrace of the stack, or innermost COUNT frames.")); | |
3458 | add_info_alias ("s", info_stack_cmd, 1); | |
3459 | ||
3460 | cmd_list_element *info_frame_cmd_el | |
3461 | = add_prefix_cmd ("frame", class_info, &info_frame_cmd.base_command, | |
3462 | _("All about the selected stack frame.\n\ | |
f67ffa6a AB |
3463 | With no arguments, displays information about the currently selected stack\n\ |
3464 | frame. Alternatively a frame specification may be provided (See \"frame\")\n\ | |
3465 | the information is then printed about the specified frame."), | |
e0f25bd9 SM |
3466 | &info_frame_cmd_list, 1, &infolist); |
3467 | add_info_alias ("f", info_frame_cmd_el, 1); | |
f67ffa6a AB |
3468 | |
3469 | add_cmd ("address", class_stack, &info_frame_cmd.address, | |
3470 | _("\ | |
3471 | Print information about a stack frame selected by stack address.\n\ | |
3472 | \n\ | |
3473 | Usage: info frame address STACK-ADDRESS"), | |
3474 | &info_frame_cmd_list); | |
3475 | ||
3476 | add_cmd ("view", class_stack, &info_frame_cmd.view, | |
3477 | _("\ | |
3478 | Print information about a stack frame outside the current backtrace.\n\ | |
3479 | \n\ | |
3480 | Usage: info frame view STACK-ADDRESS\n\ | |
3481 | info frame view STACK-ADDRESS PC-ADDRESS"), | |
3482 | &info_frame_cmd_list); | |
3483 | ||
3484 | cmd = add_cmd ("function", class_stack, &info_frame_cmd.function, | |
3485 | _("\ | |
3486 | Print information about a stack frame selected by function name.\n\ | |
3487 | \n\ | |
3488 | Usage: info frame function NAME"), | |
3489 | &info_frame_cmd_list); | |
3490 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3491 | ||
3492 | add_cmd ("level", class_stack, &info_frame_cmd.level, | |
3493 | _("\ | |
3494 | Print information about a stack frame selected by level.\n\ | |
3495 | \n\ | |
3496 | Usage: info frame level LEVEL"), | |
3497 | &info_frame_cmd_list); | |
3498 | ||
60cfcb20 AB |
3499 | cmd = add_info ("locals", info_locals_command, |
3500 | info_print_args_help (_("\ | |
12615cba PW |
3501 | All local variables of current stack frame or those matching REGEXPs.\n\ |
3502 | Usage: info locals [-q] [-t TYPEREGEXP] [NAMEREGEXP]\n\ | |
3503 | Prints the local variables of the current stack frame.\n"), | |
4acfdd20 AB |
3504 | _("local variables"), |
3505 | false)); | |
60cfcb20 AB |
3506 | set_cmd_completer_handle_brkchars (cmd, info_print_command_completer); |
3507 | cmd = add_info ("args", info_args_command, | |
3508 | info_print_args_help (_("\ | |
12615cba PW |
3509 | All argument variables of current stack frame or those matching REGEXPs.\n\ |
3510 | Usage: info args [-q] [-t TYPEREGEXP] [NAMEREGEXP]\n\ | |
3511 | Prints the argument variables of the current stack frame.\n"), | |
4acfdd20 AB |
3512 | _("argument variables"), |
3513 | false)); | |
60cfcb20 | 3514 | set_cmd_completer_handle_brkchars (cmd, info_print_command_completer); |
c906108c | 3515 | |
2daf894e PA |
3516 | /* Install "set print raw frame-arguments", a deprecated spelling of |
3517 | "set print raw-frame-arguments". */ | |
af7f8f52 SM |
3518 | set_show_commands set_show_frame_args |
3519 | = add_setshow_boolean_cmd | |
3520 | ("frame-arguments", no_class, | |
3521 | &user_frame_print_options.print_raw_frame_arguments, | |
3522 | _("\ | |
2daf894e PA |
3523 | Set whether to print frame arguments in raw form."), _("\ |
3524 | Show whether to print frame arguments in raw form."), _("\ | |
3525 | If set, frame arguments are printed in raw form, bypassing any\n\ | |
3526 | pretty-printers for that value."), | |
af7f8f52 SM |
3527 | NULL, NULL, |
3528 | &setprintrawlist, &showprintrawlist); | |
3529 | deprecate_cmd (set_show_frame_args.set, "set print raw-frame-arguments"); | |
2daf894e | 3530 | |
30c33a9f | 3531 | add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack, |
dda83cd7 | 3532 | &disassemble_next_line, _("\ |
3e43a32a MS |
3533 | Set whether to disassemble next source line or insn when execution stops."), |
3534 | _("\ | |
3535 | Show whether to disassemble next source line or insn when execution stops."), | |
3536 | _("\ | |
80a0ea0f EZ |
3537 | If ON, GDB will display disassembly of the next source line, in addition\n\ |
3538 | to displaying the source line itself. If the next source line cannot\n\ | |
3539 | be displayed (e.g., source is unavailable or there's no line info), GDB\n\ | |
3540 | will display disassembly of next instruction instead of showing the\n\ | |
3541 | source line.\n\ | |
3542 | If AUTO, display disassembly of next instruction only if the source line\n\ | |
3543 | cannot be displayed.\n\ | |
3544 | If OFF (which is the default), never display the disassembly of the next\n\ | |
3545 | source line."), | |
dda83cd7 SM |
3546 | NULL, |
3547 | show_disassemble_next_line, | |
3548 | &setlist, &showlist); | |
a362e3d3 | 3549 | disassemble_next_line = AUTO_BOOLEAN_FALSE; |
e18b2753 | 3550 | |
d4c16835 PA |
3551 | gdb::option::add_setshow_cmds_for_options |
3552 | (class_stack, &user_frame_print_options, | |
3553 | frame_print_option_defs, &setprintlist, &showprintlist); | |
c906108c | 3554 | } |