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c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
213516ef | 3 | Copyright (C) 1986-2023 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 19 | |
c906108c | 20 | #include "defs.h" |
c906108c SS |
21 | #include "value.h" |
22 | #include "symtab.h" | |
23 | #include "gdbtypes.h" | |
24 | #include "expression.h" | |
25 | #include "language.h" | |
26 | #include "frame.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "gdbcore.h" | |
29 | #include "target.h" | |
0378c332 | 30 | #include "source.h" |
c906108c SS |
31 | #include "breakpoint.h" |
32 | #include "demangle.h" | |
33 | #include "inferior.h" | |
34 | #include "annotate.h" | |
8b93c638 | 35 | #include "ui-out.h" |
fe898f56 | 36 | #include "block.h" |
b9362cc7 | 37 | #include "stack.h" |
de4f826b | 38 | #include "dictionary.h" |
898c62f5 | 39 | #include "reggroups.h" |
fc70c2a0 | 40 | #include "regcache.h" |
a77053c2 | 41 | #include "solib.h" |
033a42c2 | 42 | #include "valprint.h" |
8ea051c5 | 43 | #include "gdbthread.h" |
3567439c | 44 | #include "cp-support.h" |
30c33a9f | 45 | #include "disasm.h" |
edb3359d | 46 | #include "inline-frame.h" |
f8eba3c6 | 47 | #include "linespec.h" |
529480d0 | 48 | #include "cli/cli-utils.h" |
77e371c0 | 49 | #include "objfiles.h" |
0d3abd8c | 50 | #include "annotate.h" |
c906108c | 51 | |
ccefe4c4 | 52 | #include "symfile.h" |
6dddc817 | 53 | #include "extension.h" |
76727919 | 54 | #include "observable.h" |
268a13a5 | 55 | #include "gdbsupport/def-vector.h" |
d4c16835 | 56 | #include "cli/cli-option.h" |
e43b10e1 | 57 | #include "cli/cli-style.h" |
7904e961 | 58 | #include "gdbsupport/buildargv.h" |
ccefe4c4 | 59 | |
2421fe6f | 60 | /* The possible choices of "set print frame-arguments", and the value |
88408340 JB |
61 | of this setting. */ |
62 | ||
d4c16835 PA |
63 | const char print_frame_arguments_all[] = "all"; |
64 | const char print_frame_arguments_scalars[] = "scalars"; | |
65 | const char print_frame_arguments_none[] = "none"; | |
4b5e8d19 | 66 | const char print_frame_arguments_presence[] = "presence"; |
88408340 | 67 | |
d4c16835 PA |
68 | static const char *const print_frame_arguments_choices[] = |
69 | { | |
70 | print_frame_arguments_all, | |
71 | print_frame_arguments_scalars, | |
72 | print_frame_arguments_none, | |
4b5e8d19 | 73 | print_frame_arguments_presence, |
d4c16835 PA |
74 | NULL |
75 | }; | |
e7045703 | 76 | |
4b5e8d19 PW |
77 | /* The possible choices of "set print frame-info", and the value |
78 | of this setting. */ | |
79 | ||
80 | const char print_frame_info_auto[] = "auto"; | |
81 | const char print_frame_info_source_line[] = "source-line"; | |
82 | const char print_frame_info_location[] = "location"; | |
83 | const char print_frame_info_source_and_location[] = "source-and-location"; | |
84 | const char print_frame_info_location_and_address[] = "location-and-address"; | |
85 | const char print_frame_info_short_location[] = "short-location"; | |
86 | ||
87 | static const char *const print_frame_info_choices[] = | |
88 | { | |
89 | print_frame_info_auto, | |
90 | print_frame_info_source_line, | |
91 | print_frame_info_location, | |
92 | print_frame_info_source_and_location, | |
93 | print_frame_info_location_and_address, | |
94 | print_frame_info_short_location, | |
95 | NULL | |
96 | }; | |
97 | ||
98 | /* print_frame_info_print_what[i] maps a choice to the corresponding | |
99 | print_what enum. */ | |
100 | static const gdb::optional<enum print_what> print_frame_info_print_what[] = | |
101 | {{}, /* Empty value for "auto". */ | |
102 | SRC_LINE, LOCATION, SRC_AND_LOC, LOC_AND_ADDRESS, SHORT_LOCATION}; | |
103 | ||
e18b2753 JK |
104 | /* The possible choices of "set print entry-values", and the value |
105 | of this setting. */ | |
106 | ||
107 | const char print_entry_values_no[] = "no"; | |
108 | const char print_entry_values_only[] = "only"; | |
109 | const char print_entry_values_preferred[] = "preferred"; | |
110 | const char print_entry_values_if_needed[] = "if-needed"; | |
111 | const char print_entry_values_both[] = "both"; | |
112 | const char print_entry_values_compact[] = "compact"; | |
113 | const char print_entry_values_default[] = "default"; | |
40478521 | 114 | static const char *const print_entry_values_choices[] = |
e18b2753 JK |
115 | { |
116 | print_entry_values_no, | |
117 | print_entry_values_only, | |
118 | print_entry_values_preferred, | |
119 | print_entry_values_if_needed, | |
120 | print_entry_values_both, | |
121 | print_entry_values_compact, | |
122 | print_entry_values_default, | |
123 | NULL | |
124 | }; | |
d4c16835 PA |
125 | |
126 | /* See frame.h. */ | |
127 | frame_print_options user_frame_print_options; | |
128 | ||
129 | /* Option definitions for some frame-related "set print ..." | |
130 | settings. */ | |
131 | ||
132 | using boolean_option_def | |
133 | = gdb::option::boolean_option_def<frame_print_options>; | |
134 | using enum_option_def | |
135 | = gdb::option::enum_option_def<frame_print_options>; | |
136 | ||
137 | static const gdb::option::option_def frame_print_option_defs[] = { | |
138 | ||
139 | enum_option_def { | |
140 | "entry-values", | |
141 | print_entry_values_choices, | |
142 | [] (frame_print_options *opt) { return &opt->print_entry_values; }, | |
143 | NULL, /* show_cmd_cb */ | |
590042fc PW |
144 | N_("Set printing of function arguments at function entry."), |
145 | N_("Show printing of function arguments at function entry."), | |
d4c16835 PA |
146 | N_("GDB can sometimes determine the values of function arguments at entry,\n\ |
147 | in addition to their current values. This option tells GDB whether\n\ | |
148 | to print the current value, the value at entry (marked as val@entry),\n\ | |
149 | or both. Note that one or both of these values may be <optimized out>."), | |
150 | }, | |
151 | ||
152 | enum_option_def { | |
153 | "frame-arguments", | |
154 | print_frame_arguments_choices, | |
155 | [] (frame_print_options *opt) { return &opt->print_frame_arguments; }, | |
156 | NULL, /* show_cmd_cb */ | |
590042fc PW |
157 | N_("Set printing of non-scalar frame arguments."), |
158 | N_("Show printing of non-scalar frame arguments."), | |
d4c16835 PA |
159 | NULL /* help_doc */ |
160 | }, | |
161 | ||
162 | boolean_option_def { | |
163 | "raw-frame-arguments", | |
164 | [] (frame_print_options *opt) { return &opt->print_raw_frame_arguments; }, | |
165 | NULL, /* show_cmd_cb */ | |
166 | N_("Set whether to print frame arguments in raw form."), | |
167 | N_("Show whether to print frame arguments in raw form."), | |
168 | N_("If set, frame arguments are printed in raw form, bypassing any\n\ | |
169 | pretty-printers for that value.") | |
170 | }, | |
4b5e8d19 PW |
171 | |
172 | enum_option_def { | |
173 | "frame-info", | |
174 | print_frame_info_choices, | |
175 | [] (frame_print_options *opt) { return &opt->print_frame_info; }, | |
176 | NULL, /* show_cmd_cb */ | |
177 | N_("Set printing of frame information."), | |
178 | N_("Show printing of frame information."), | |
179 | NULL /* help_doc */ | |
180 | } | |
181 | ||
d4c16835 PA |
182 | }; |
183 | ||
184 | /* Options for the "backtrace" command. */ | |
185 | ||
186 | struct backtrace_cmd_options | |
187 | { | |
491144b5 CB |
188 | bool full = false; |
189 | bool no_filters = false; | |
190 | bool hide = false; | |
d4c16835 PA |
191 | }; |
192 | ||
193 | using bt_flag_option_def | |
194 | = gdb::option::flag_option_def<backtrace_cmd_options>; | |
195 | ||
196 | static const gdb::option::option_def backtrace_command_option_defs[] = { | |
197 | bt_flag_option_def { | |
198 | "full", | |
199 | [] (backtrace_cmd_options *opt) { return &opt->full; }, | |
200 | N_("Print values of local variables.") | |
201 | }, | |
202 | ||
203 | bt_flag_option_def { | |
204 | "no-filters", | |
205 | [] (backtrace_cmd_options *opt) { return &opt->no_filters; }, | |
206 | N_("Prohibit frame filters from executing on a backtrace."), | |
207 | }, | |
208 | ||
209 | bt_flag_option_def { | |
210 | "hide", | |
211 | [] (backtrace_cmd_options *opt) { return &opt->hide; }, | |
212 | N_("Causes Python frame filter elided frames to not be printed."), | |
213 | }, | |
214 | }; | |
e18b2753 | 215 | |
c378eb4e | 216 | /* Prototypes for local functions. */ |
c906108c | 217 | |
bd2b40ac | 218 | static void print_frame_local_vars (frame_info_ptr frame, |
12615cba PW |
219 | bool quiet, |
220 | const char *regexp, const char *t_regexp, | |
221 | int num_tabs, struct ui_file *stream); | |
c906108c | 222 | |
d4c16835 | 223 | static void print_frame (const frame_print_options &opts, |
bd2b40ac | 224 | frame_info_ptr frame, int print_level, |
033a42c2 | 225 | enum print_what print_what, int print_args, |
c5394b80 JM |
226 | struct symtab_and_line sal); |
227 | ||
bd2b40ac TT |
228 | static frame_info_ptr find_frame_for_function (const char *); |
229 | static frame_info_ptr find_frame_for_address (CORE_ADDR); | |
f67ffa6a | 230 | |
c906108c SS |
231 | /* Zero means do things normally; we are interacting directly with the |
232 | user. One means print the full filename and linenumber when a | |
233 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
234 | parse. Two means print similar annotations, but in many more | |
235 | cases and in a slightly different syntax. */ | |
236 | ||
237 | int annotation_level = 0; | |
1bfeeb0f | 238 | |
eb2dd8df AB |
239 | /* Class used to manage tracking the last symtab we displayed. */ |
240 | ||
241 | class last_displayed_symtab_info_type | |
242 | { | |
243 | public: | |
244 | /* True if the cached information is valid. */ | |
245 | bool is_valid () const | |
246 | { return m_valid; } | |
247 | ||
248 | /* Return the cached program_space. If the cache is invalid nullptr is | |
249 | returned. */ | |
250 | struct program_space *pspace () const | |
251 | { return m_pspace; } | |
252 | ||
253 | /* Return the cached CORE_ADDR address. If the cache is invalid 0 is | |
254 | returned. */ | |
255 | CORE_ADDR address () const | |
256 | { return m_address; } | |
257 | ||
258 | /* Return the cached symtab. If the cache is invalid nullptr is | |
259 | returned. */ | |
260 | struct symtab *symtab () const | |
261 | { return m_symtab; } | |
262 | ||
263 | /* Return the cached line number. If the cache is invalid 0 is | |
264 | returned. */ | |
265 | int line () const | |
266 | { return m_line; } | |
267 | ||
268 | /* Invalidate the cache, reset all the members to their default value. */ | |
269 | void invalidate () | |
270 | { | |
271 | m_valid = false; | |
272 | m_pspace = nullptr; | |
273 | m_address = 0; | |
274 | m_symtab = nullptr; | |
275 | m_line = 0; | |
276 | } | |
277 | ||
278 | /* Store a new set of values in the cache. */ | |
279 | void set (struct program_space *pspace, CORE_ADDR address, | |
280 | struct symtab *symtab, int line) | |
281 | { | |
282 | gdb_assert (pspace != nullptr); | |
283 | ||
284 | m_valid = true; | |
285 | m_pspace = pspace; | |
286 | m_address = address; | |
287 | m_symtab = symtab; | |
288 | m_line = line; | |
289 | } | |
290 | ||
291 | private: | |
292 | /* True when the cache is valid. */ | |
293 | bool m_valid = false; | |
294 | ||
295 | /* The last program space displayed. */ | |
296 | struct program_space *m_pspace = nullptr; | |
297 | ||
298 | /* The last address displayed. */ | |
299 | CORE_ADDR m_address = 0; | |
300 | ||
301 | /* The last symtab displayed. */ | |
302 | struct symtab *m_symtab = nullptr; | |
303 | ||
304 | /* The last line number displayed. */ | |
305 | int m_line = 0; | |
306 | }; | |
307 | ||
308 | /* An actual instance of the cache, holds information about the last symtab | |
309 | displayed. */ | |
310 | static last_displayed_symtab_info_type last_displayed_symtab_info; | |
311 | ||
c906108c | 312 | \f |
c5aa993b | 313 | |
4b5e8d19 | 314 | /* See stack.h. */ |
edb3359d | 315 | |
62137775 | 316 | bool |
bd2b40ac | 317 | frame_show_address (frame_info_ptr frame, |
edb3359d DJ |
318 | struct symtab_and_line sal) |
319 | { | |
320 | /* If there is a line number, but no PC, then there is no location | |
321 | information associated with this sal. The only way that should | |
322 | happen is for the call sites of inlined functions (SAL comes from | |
323 | find_frame_sal). Otherwise, we would have some PC range if the | |
324 | SAL came from a line table. */ | |
325 | if (sal.line != 0 && sal.pc == 0 && sal.end == 0) | |
326 | { | |
327 | if (get_next_frame (frame) == NULL) | |
00431a78 | 328 | gdb_assert (inline_skipped_frames (inferior_thread ()) > 0); |
edb3359d DJ |
329 | else |
330 | gdb_assert (get_frame_type (get_next_frame (frame)) == INLINE_FRAME); | |
62137775 | 331 | return false; |
edb3359d DJ |
332 | } |
333 | ||
8c95582d | 334 | return get_frame_pc (frame) != sal.pc || !sal.is_stmt; |
edb3359d DJ |
335 | } |
336 | ||
4034d0ff AT |
337 | /* See frame.h. */ |
338 | ||
339 | void | |
bd2b40ac | 340 | print_stack_frame_to_uiout (struct ui_out *uiout, frame_info_ptr frame, |
4034d0ff AT |
341 | int print_level, enum print_what print_what, |
342 | int set_current_sal) | |
343 | { | |
67ad9399 | 344 | scoped_restore save_uiout = make_scoped_restore (¤t_uiout, uiout); |
4034d0ff AT |
345 | |
346 | print_stack_frame (frame, print_level, print_what, set_current_sal); | |
4034d0ff AT |
347 | } |
348 | ||
f9acce4a | 349 | /* Show or print a stack frame FRAME briefly. The output is formatted |
d762c46a AC |
350 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
351 | relative level, function name, argument list, and file name and | |
352 | line number. If the frame's PC is not at the beginning of the | |
353 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
354 | |
355 | void | |
bd2b40ac | 356 | print_stack_frame (frame_info_ptr frame, int print_level, |
08d72866 PA |
357 | enum print_what print_what, |
358 | int set_current_sal) | |
c906108c | 359 | { |
c906108c | 360 | |
85102364 | 361 | /* For mi, always print location and address. */ |
112e8700 | 362 | if (current_uiout->is_mi_like_p ()) |
311b5970 | 363 | print_what = LOC_AND_ADDRESS; |
c906108c | 364 | |
a70b8144 | 365 | try |
311b5970 | 366 | { |
d4c16835 PA |
367 | print_frame_info (user_frame_print_options, |
368 | frame, print_level, print_what, 1 /* print_args */, | |
08d72866 PA |
369 | set_current_sal); |
370 | if (set_current_sal) | |
5166082f | 371 | set_current_sal_from_frame (frame); |
311b5970 | 372 | } |
230d2906 | 373 | catch (const gdb_exception_error &e) |
492d29ea PA |
374 | { |
375 | } | |
311b5970 | 376 | } |
c906108c | 377 | |
033a42c2 MK |
378 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
379 | the offset of the first nameless argument, and NUM is the number of | |
380 | nameless arguments to print. FIRST is nonzero if this is the first | |
381 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
382 | |
383 | static void | |
bd2b40ac | 384 | print_frame_nameless_args (frame_info_ptr frame, long start, int num, |
8d3b0994 AC |
385 | int first, struct ui_file *stream) |
386 | { | |
e17a4113 UW |
387 | struct gdbarch *gdbarch = get_frame_arch (frame); |
388 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
8d3b0994 AC |
389 | int i; |
390 | CORE_ADDR argsaddr; | |
391 | long arg_value; | |
392 | ||
393 | for (i = 0; i < num; i++) | |
394 | { | |
395 | QUIT; | |
033a42c2 | 396 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
397 | if (!argsaddr) |
398 | return; | |
e17a4113 UW |
399 | arg_value = read_memory_integer (argsaddr + start, |
400 | sizeof (int), byte_order); | |
8d3b0994 | 401 | if (!first) |
6cb06a8c TT |
402 | gdb_printf (stream, ", "); |
403 | gdb_printf (stream, "%ld", arg_value); | |
8d3b0994 AC |
404 | first = 0; |
405 | start += sizeof (int); | |
406 | } | |
407 | } | |
408 | ||
93d86cef JK |
409 | /* Print single argument of inferior function. ARG must be already |
410 | read in. | |
411 | ||
412 | Errors are printed as if they would be the parameter value. Use zeroed ARG | |
85102364 | 413 | iff it should not be printed according to user settings. */ |
93d86cef JK |
414 | |
415 | static void | |
d4c16835 PA |
416 | print_frame_arg (const frame_print_options &fp_opts, |
417 | const struct frame_arg *arg) | |
93d86cef JK |
418 | { |
419 | struct ui_out *uiout = current_uiout; | |
93d86cef | 420 | |
d7e74731 | 421 | string_file stb; |
93d86cef JK |
422 | |
423 | gdb_assert (!arg->val || !arg->error); | |
e18b2753 JK |
424 | gdb_assert (arg->entry_kind == print_entry_values_no |
425 | || arg->entry_kind == print_entry_values_only | |
112e8700 | 426 | || (!uiout->is_mi_like_p () |
e18b2753 | 427 | && arg->entry_kind == print_entry_values_compact)); |
93d86cef | 428 | |
46b9c129 TT |
429 | annotate_arg_emitter arg_emitter; |
430 | ui_out_emit_tuple tuple_emitter (uiout, NULL); | |
0426ad51 | 431 | gdb_puts (arg->sym->print_name (), &stb); |
e18b2753 JK |
432 | if (arg->entry_kind == print_entry_values_compact) |
433 | { | |
434 | /* It is OK to provide invalid MI-like stream as with | |
435 | PRINT_ENTRY_VALUE_COMPACT we never use MI. */ | |
d7e74731 | 436 | stb.puts ("="); |
e18b2753 | 437 | |
0426ad51 | 438 | gdb_puts (arg->sym->print_name (), &stb); |
e18b2753 JK |
439 | } |
440 | if (arg->entry_kind == print_entry_values_only | |
441 | || arg->entry_kind == print_entry_values_compact) | |
d7e74731 | 442 | stb.puts ("@entry"); |
e43b10e1 | 443 | uiout->field_stream ("name", stb, variable_name_style.style ()); |
93d86cef | 444 | annotate_arg_name_end (); |
112e8700 | 445 | uiout->text ("="); |
93d86cef | 446 | |
7f6aba03 | 447 | ui_file_style style; |
93d86cef | 448 | if (!arg->val && !arg->error) |
112e8700 | 449 | uiout->text ("..."); |
93d86cef JK |
450 | else |
451 | { | |
452 | if (arg->error) | |
7f6aba03 TT |
453 | { |
454 | stb.printf (_("<error reading variable: %s>"), arg->error.get ()); | |
455 | style = metadata_style.style (); | |
456 | } | |
93d86cef JK |
457 | else |
458 | { | |
a70b8144 | 459 | try |
93d86cef JK |
460 | { |
461 | const struct language_defn *language; | |
d4c16835 | 462 | struct value_print_options vp_opts; |
93d86cef JK |
463 | |
464 | /* Avoid value_print because it will deref ref parameters. We | |
465 | just want to print their addresses. Print ??? for args whose | |
466 | address we do not know. We pass 2 as "recurse" to val_print | |
467 | because our standard indentation here is 4 spaces, and | |
468 | val_print indents 2 for each recurse. */ | |
469 | ||
d0c97917 | 470 | annotate_arg_value (arg->val->type ()); |
93d86cef JK |
471 | |
472 | /* Use the appropriate language to display our symbol, unless the | |
473 | user forced the language to a specific language. */ | |
474 | if (language_mode == language_mode_auto) | |
c1b5c1eb | 475 | language = language_def (arg->sym->language ()); |
93d86cef JK |
476 | else |
477 | language = current_language; | |
478 | ||
d4c16835 | 479 | get_no_prettyformat_print_options (&vp_opts); |
dad6b350 | 480 | vp_opts.deref_ref = true; |
d4c16835 | 481 | vp_opts.raw = fp_opts.print_raw_frame_arguments; |
93d86cef JK |
482 | |
483 | /* True in "summary" mode, false otherwise. */ | |
d4c16835 PA |
484 | vp_opts.summary |
485 | = fp_opts.print_frame_arguments == print_frame_arguments_scalars; | |
93d86cef | 486 | |
c2a44efe | 487 | common_val_print_checked (arg->val, &stb, 2, &vp_opts, language); |
93d86cef | 488 | } |
230d2906 | 489 | catch (const gdb_exception_error &except) |
492d29ea | 490 | { |
3d6e9d23 TT |
491 | stb.printf (_("<error reading variable: %s>"), |
492 | except.what ()); | |
7f6aba03 | 493 | style = metadata_style.style (); |
492d29ea | 494 | } |
93d86cef | 495 | } |
93d86cef JK |
496 | } |
497 | ||
7f6aba03 | 498 | uiout->field_stream ("value", stb, style); |
93d86cef JK |
499 | } |
500 | ||
82a0a75f YQ |
501 | /* Read in inferior function local SYM at FRAME into ARGP. Caller is |
502 | responsible for xfree of ARGP->ERROR. This function never throws an | |
503 | exception. */ | |
504 | ||
505 | void | |
bd2b40ac | 506 | read_frame_local (struct symbol *sym, frame_info_ptr frame, |
82a0a75f YQ |
507 | struct frame_arg *argp) |
508 | { | |
492d29ea PA |
509 | argp->sym = sym; |
510 | argp->val = NULL; | |
511 | argp->error = NULL; | |
512 | ||
a70b8144 | 513 | try |
82a0a75f | 514 | { |
63e43d3a | 515 | argp->val = read_var_value (sym, NULL, frame); |
82a0a75f | 516 | } |
230d2906 | 517 | catch (const gdb_exception_error &except) |
492d29ea | 518 | { |
123cd851 | 519 | argp->error.reset (xstrdup (except.what ())); |
492d29ea | 520 | } |
82a0a75f YQ |
521 | } |
522 | ||
123cd851 TT |
523 | /* Read in inferior function parameter SYM at FRAME into ARGP. This |
524 | function never throws an exception. */ | |
93d86cef JK |
525 | |
526 | void | |
d4c16835 | 527 | read_frame_arg (const frame_print_options &fp_opts, |
bd2b40ac | 528 | symbol *sym, frame_info_ptr frame, |
dda83cd7 | 529 | struct frame_arg *argp, struct frame_arg *entryargp) |
93d86cef | 530 | { |
e18b2753 JK |
531 | struct value *val = NULL, *entryval = NULL; |
532 | char *val_error = NULL, *entryval_error = NULL; | |
533 | int val_equal = 0; | |
93d86cef | 534 | |
d4c16835 PA |
535 | if (fp_opts.print_entry_values != print_entry_values_only |
536 | && fp_opts.print_entry_values != print_entry_values_preferred) | |
e18b2753 | 537 | { |
a70b8144 | 538 | try |
e18b2753 | 539 | { |
63e43d3a | 540 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 541 | } |
230d2906 | 542 | catch (const gdb_exception_error &except) |
e18b2753 | 543 | { |
3d6e9d23 TT |
544 | val_error = (char *) alloca (except.message->size () + 1); |
545 | strcpy (val_error, except.what ()); | |
e18b2753 JK |
546 | } |
547 | } | |
548 | ||
24d6c2a0 TT |
549 | if (SYMBOL_COMPUTED_OPS (sym) != NULL |
550 | && SYMBOL_COMPUTED_OPS (sym)->read_variable_at_entry != NULL | |
d4c16835 PA |
551 | && fp_opts.print_entry_values != print_entry_values_no |
552 | && (fp_opts.print_entry_values != print_entry_values_if_needed | |
d00664db | 553 | || !val || val->optimized_out ())) |
e18b2753 | 554 | { |
a70b8144 | 555 | try |
e18b2753 JK |
556 | { |
557 | const struct symbol_computed_ops *ops; | |
558 | ||
559 | ops = SYMBOL_COMPUTED_OPS (sym); | |
560 | entryval = ops->read_variable_at_entry (sym, frame); | |
561 | } | |
230d2906 | 562 | catch (const gdb_exception_error &except) |
e18b2753 | 563 | { |
492d29ea PA |
564 | if (except.error != NO_ENTRY_VALUE_ERROR) |
565 | { | |
3d6e9d23 TT |
566 | entryval_error = (char *) alloca (except.message->size () + 1); |
567 | strcpy (entryval_error, except.what ()); | |
492d29ea | 568 | } |
e18b2753 JK |
569 | } |
570 | ||
d00664db | 571 | if (entryval != NULL && entryval->optimized_out ()) |
492d29ea | 572 | entryval = NULL; |
e18b2753 | 573 | |
d4c16835 PA |
574 | if (fp_opts.print_entry_values == print_entry_values_compact |
575 | || fp_opts.print_entry_values == print_entry_values_default) | |
e18b2753 JK |
576 | { |
577 | /* For MI do not try to use print_entry_values_compact for ARGP. */ | |
578 | ||
112e8700 | 579 | if (val && entryval && !current_uiout->is_mi_like_p ()) |
e18b2753 | 580 | { |
d0c97917 | 581 | struct type *type = val->type (); |
e18b2753 | 582 | |
3ee3b270 | 583 | if (val->lazy ()) |
78259c36 | 584 | val->fetch_lazy (); |
3ee3b270 | 585 | if (entryval->lazy ()) |
78259c36 | 586 | entryval->fetch_lazy (); |
9a0dc9e3 | 587 | |
02744ba9 | 588 | if (val->contents_eq (0, entryval, 0, type->length ())) |
e18b2753 | 589 | { |
509f0fd9 JK |
590 | /* Initialize it just to avoid a GCC false warning. */ |
591 | struct value *val_deref = NULL, *entryval_deref; | |
a471c594 | 592 | |
216f72a1 | 593 | /* DW_AT_call_value does match with the current |
a471c594 | 594 | value. If it is a reference still try to verify if |
216f72a1 | 595 | dereferenced DW_AT_call_data_value does not differ. */ |
a471c594 | 596 | |
a70b8144 | 597 | try |
a471c594 | 598 | { |
744a8059 | 599 | struct type *type_deref; |
a471c594 JK |
600 | |
601 | val_deref = coerce_ref (val); | |
3ee3b270 | 602 | if (val_deref->lazy ()) |
78259c36 | 603 | val_deref->fetch_lazy (); |
d0c97917 | 604 | type_deref = val_deref->type (); |
a471c594 JK |
605 | |
606 | entryval_deref = coerce_ref (entryval); | |
3ee3b270 | 607 | if (entryval_deref->lazy ()) |
78259c36 | 608 | entryval_deref->fetch_lazy (); |
a471c594 JK |
609 | |
610 | /* If the reference addresses match but dereferenced | |
611 | content does not match print them. */ | |
612 | if (val != val_deref | |
02744ba9 TT |
613 | && val_deref->contents_eq (0, |
614 | entryval_deref, 0, | |
615 | type_deref->length ())) | |
a471c594 JK |
616 | val_equal = 1; |
617 | } | |
230d2906 | 618 | catch (const gdb_exception_error &except) |
492d29ea PA |
619 | { |
620 | /* If the dereferenced content could not be | |
621 | fetched do not display anything. */ | |
622 | if (except.error == NO_ENTRY_VALUE_ERROR) | |
623 | val_equal = 1; | |
624 | else if (except.message != NULL) | |
625 | { | |
3d6e9d23 TT |
626 | entryval_error |
627 | = (char *) alloca (except.message->size () + 1); | |
628 | strcpy (entryval_error, except.what ()); | |
492d29ea PA |
629 | } |
630 | } | |
a471c594 JK |
631 | |
632 | /* Value was not a reference; and its content matches. */ | |
633 | if (val == val_deref) | |
634 | val_equal = 1; | |
a471c594 JK |
635 | |
636 | if (val_equal) | |
637 | entryval = NULL; | |
e18b2753 JK |
638 | } |
639 | } | |
640 | ||
641 | /* Try to remove possibly duplicate error message for ENTRYARGP even | |
642 | in MI mode. */ | |
643 | ||
644 | if (val_error && entryval_error | |
645 | && strcmp (val_error, entryval_error) == 0) | |
646 | { | |
647 | entryval_error = NULL; | |
648 | ||
649 | /* Do not se VAL_EQUAL as the same error message may be shown for | |
650 | the entry value even if no entry values are present in the | |
651 | inferior. */ | |
652 | } | |
653 | } | |
654 | } | |
655 | ||
656 | if (entryval == NULL) | |
93d86cef | 657 | { |
d4c16835 | 658 | if (fp_opts.print_entry_values == print_entry_values_preferred) |
e18b2753 | 659 | { |
492d29ea PA |
660 | gdb_assert (val == NULL); |
661 | ||
a70b8144 | 662 | try |
e18b2753 | 663 | { |
63e43d3a | 664 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 665 | } |
230d2906 | 666 | catch (const gdb_exception_error &except) |
e18b2753 | 667 | { |
3d6e9d23 TT |
668 | val_error = (char *) alloca (except.message->size () + 1); |
669 | strcpy (val_error, except.what ()); | |
e18b2753 JK |
670 | } |
671 | } | |
d4c16835 PA |
672 | if (fp_opts.print_entry_values == print_entry_values_only |
673 | || fp_opts.print_entry_values == print_entry_values_both | |
674 | || (fp_opts.print_entry_values == print_entry_values_preferred | |
d00664db | 675 | && (!val || val->optimized_out ()))) |
1ed8d800 | 676 | { |
b27556e3 | 677 | entryval = value::allocate_optimized_out (sym->type ()); |
1ed8d800 YQ |
678 | entryval_error = NULL; |
679 | } | |
93d86cef | 680 | } |
d4c16835 PA |
681 | if ((fp_opts.print_entry_values == print_entry_values_compact |
682 | || fp_opts.print_entry_values == print_entry_values_if_needed | |
683 | || fp_opts.print_entry_values == print_entry_values_preferred) | |
d00664db | 684 | && (!val || val->optimized_out ()) && entryval != NULL) |
93d86cef | 685 | { |
e18b2753 JK |
686 | val = NULL; |
687 | val_error = NULL; | |
93d86cef JK |
688 | } |
689 | ||
690 | argp->sym = sym; | |
691 | argp->val = val; | |
123cd851 | 692 | argp->error.reset (val_error ? xstrdup (val_error) : NULL); |
e18b2753 JK |
693 | if (!val && !val_error) |
694 | argp->entry_kind = print_entry_values_only; | |
d4c16835 PA |
695 | else if ((fp_opts.print_entry_values == print_entry_values_compact |
696 | || fp_opts.print_entry_values == print_entry_values_default) | |
697 | && val_equal) | |
e18b2753 JK |
698 | { |
699 | argp->entry_kind = print_entry_values_compact; | |
112e8700 | 700 | gdb_assert (!current_uiout->is_mi_like_p ()); |
e18b2753 JK |
701 | } |
702 | else | |
703 | argp->entry_kind = print_entry_values_no; | |
704 | ||
705 | entryargp->sym = sym; | |
706 | entryargp->val = entryval; | |
123cd851 | 707 | entryargp->error.reset (entryval_error ? xstrdup (entryval_error) : NULL); |
e18b2753 JK |
708 | if (!entryval && !entryval_error) |
709 | entryargp->entry_kind = print_entry_values_no; | |
710 | else | |
711 | entryargp->entry_kind = print_entry_values_only; | |
93d86cef JK |
712 | } |
713 | ||
033a42c2 MK |
714 | /* Print the arguments of frame FRAME on STREAM, given the function |
715 | FUNC running in that frame (as a symbol), where NUM is the number | |
716 | of arguments according to the stack frame (or -1 if the number of | |
717 | arguments is unknown). */ | |
8d3b0994 | 718 | |
e3168615 | 719 | /* Note that currently the "number of arguments according to the |
033a42c2 | 720 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 721 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
722 | |
723 | static void | |
d4c16835 | 724 | print_frame_args (const frame_print_options &fp_opts, |
bd2b40ac | 725 | struct symbol *func, frame_info_ptr frame, |
033a42c2 | 726 | int num, struct ui_file *stream) |
8d3b0994 | 727 | { |
79a45e25 | 728 | struct ui_out *uiout = current_uiout; |
8d3b0994 | 729 | int first = 1; |
8d3b0994 | 730 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
731 | at the highest offset, or -1 if we haven't come to a stack |
732 | argument yet. */ | |
8d3b0994 | 733 | long highest_offset = -1; |
8d3b0994 AC |
734 | /* Number of ints of arguments that we have printed so far. */ |
735 | int args_printed = 0; | |
4b5e8d19 PW |
736 | /* True if we should print arg names. If false, we only indicate |
737 | the presence of arguments by printing ellipsis. */ | |
738 | bool print_names | |
739 | = fp_opts.print_frame_arguments != print_frame_arguments_presence; | |
a6bac58e | 740 | /* True if we should print arguments, false otherwise. */ |
d4c16835 | 741 | bool print_args |
4b5e8d19 PW |
742 | = (print_names |
743 | && fp_opts.print_frame_arguments != print_frame_arguments_none); | |
8d3b0994 | 744 | |
8d3b0994 AC |
745 | if (func) |
746 | { | |
4aeddc50 | 747 | const struct block *b = func->value_block (); |
8d3b0994 | 748 | |
548a89df | 749 | for (struct symbol *sym : block_iterator_range (b)) |
dda83cd7 | 750 | { |
e18b2753 | 751 | struct frame_arg arg, entryarg; |
93d86cef | 752 | |
8d3b0994 AC |
753 | QUIT; |
754 | ||
755 | /* Keep track of the highest stack argument offset seen, and | |
756 | skip over any kinds of symbols we don't care about. */ | |
757 | ||
d9743061 | 758 | if (!sym->is_argument ()) |
2a2d4dc3 AS |
759 | continue; |
760 | ||
4b5e8d19 PW |
761 | if (!print_names) |
762 | { | |
763 | uiout->text ("..."); | |
764 | first = 0; | |
765 | break; | |
766 | } | |
767 | ||
66d7f48f | 768 | switch (sym->aclass ()) |
8d3b0994 AC |
769 | { |
770 | case LOC_ARG: | |
771 | case LOC_REF_ARG: | |
772 | { | |
4aeddc50 | 773 | long current_offset = sym->value_longest (); |
df86565b | 774 | int arg_size = sym->type ()->length (); |
8d3b0994 AC |
775 | |
776 | /* Compute address of next argument by adding the size of | |
777 | this argument and rounding to an int boundary. */ | |
778 | current_offset = | |
779 | ((current_offset + arg_size + sizeof (int) - 1) | |
780 | & ~(sizeof (int) - 1)); | |
781 | ||
033a42c2 MK |
782 | /* If this is the highest offset seen yet, set |
783 | highest_offset. */ | |
8d3b0994 AC |
784 | if (highest_offset == -1 |
785 | || (current_offset > highest_offset)) | |
786 | highest_offset = current_offset; | |
787 | ||
033a42c2 MK |
788 | /* Add the number of ints we're about to print to |
789 | args_printed. */ | |
8d3b0994 AC |
790 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
791 | } | |
792 | ||
033a42c2 MK |
793 | /* We care about types of symbols, but don't need to |
794 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 795 | case LOC_REGISTER: |
8d3b0994 | 796 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
797 | case LOC_COMPUTED: |
798 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 799 | default: |
2a2d4dc3 | 800 | break; |
8d3b0994 AC |
801 | } |
802 | ||
803 | /* We have to look up the symbol because arguments can have | |
804 | two entries (one a parameter, one a local) and the one we | |
805 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 806 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
807 | small structure and gcc2 when the argument type is float |
808 | and it is passed as a double and converted to float by | |
809 | the prologue (in the latter case the type of the LOC_ARG | |
810 | symbol is double and the type of the LOC_LOCAL symbol is | |
811 | float). */ | |
033a42c2 MK |
812 | /* But if the parameter name is null, don't try it. Null |
813 | parameter names occur on the RS/6000, for traceback | |
814 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 815 | |
987012b8 | 816 | if (*sym->linkage_name ()) |
8d3b0994 AC |
817 | { |
818 | struct symbol *nsym; | |
433759f7 | 819 | |
987012b8 | 820 | nsym = lookup_symbol_search_name (sym->search_name (), |
de63c46b | 821 | b, VAR_DOMAIN).symbol; |
55765a25 | 822 | gdb_assert (nsym != NULL); |
66d7f48f | 823 | if (nsym->aclass () == LOC_REGISTER |
d9743061 | 824 | && !nsym->is_argument ()) |
8d3b0994 | 825 | { |
033a42c2 MK |
826 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
827 | that it was passed on the stack and loaded into a | |
828 | register, or passed in a register and stored in a | |
829 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
830 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
831 | |
832 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
833 | |
834 | (1) Because find_saved_registers may be slow for | |
dda83cd7 | 835 | remote debugging. |
033a42c2 MK |
836 | |
837 | (2) Because registers are often re-used and stack | |
dda83cd7 SM |
838 | slots rarely (never?) are. Therefore using |
839 | the stack slot is much less likely to print | |
840 | garbage. | |
8d3b0994 AC |
841 | |
842 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
843 | |
844 | (1) So that the backtrace prints the same value | |
dda83cd7 SM |
845 | as "print foo". I see no compelling reason |
846 | why this needs to be the case; having the | |
847 | backtrace print the value which was passed | |
848 | in, and "print foo" print the value as | |
849 | modified within the called function, makes | |
850 | perfect sense to me. | |
033a42c2 MK |
851 | |
852 | Additional note: It might be nice if "info args" | |
853 | displayed both values. | |
854 | ||
855 | One more note: There is a case with SPARC | |
856 | structure passing where we need to use the | |
857 | LOC_REGISTER, but this is dealt with by creating | |
858 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
859 | |
860 | /* Leave sym (the LOC_ARG) alone. */ | |
861 | ; | |
862 | } | |
863 | else | |
864 | sym = nsym; | |
865 | } | |
866 | ||
867 | /* Print the current arg. */ | |
868 | if (!first) | |
112e8700 | 869 | uiout->text (", "); |
6c92c339 | 870 | uiout->wrap_hint (4); |
8d3b0994 | 871 | |
93d86cef JK |
872 | if (!print_args) |
873 | { | |
93d86cef | 874 | arg.sym = sym; |
e18b2753 | 875 | arg.entry_kind = print_entry_values_no; |
e18b2753 JK |
876 | entryarg.sym = sym; |
877 | entryarg.entry_kind = print_entry_values_no; | |
93d86cef JK |
878 | } |
879 | else | |
d4c16835 | 880 | read_frame_arg (fp_opts, sym, frame, &arg, &entryarg); |
8d3b0994 | 881 | |
e18b2753 | 882 | if (arg.entry_kind != print_entry_values_only) |
d4c16835 | 883 | print_frame_arg (fp_opts, &arg); |
e18b2753 JK |
884 | |
885 | if (entryarg.entry_kind != print_entry_values_no) | |
886 | { | |
887 | if (arg.entry_kind != print_entry_values_only) | |
888 | { | |
112e8700 | 889 | uiout->text (", "); |
6c92c339 | 890 | uiout->wrap_hint (4); |
e18b2753 JK |
891 | } |
892 | ||
d4c16835 | 893 | print_frame_arg (fp_opts, &entryarg); |
e18b2753 | 894 | } |
8d3b0994 | 895 | |
8d3b0994 AC |
896 | first = 0; |
897 | } | |
898 | } | |
899 | ||
900 | /* Don't print nameless args in situations where we don't know | |
901 | enough about the stack to find them. */ | |
902 | if (num != -1) | |
903 | { | |
904 | long start; | |
905 | ||
906 | if (highest_offset == -1) | |
7500260a | 907 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
908 | else |
909 | start = highest_offset; | |
910 | ||
4b5e8d19 PW |
911 | if (!print_names && !first && num > 0) |
912 | uiout->text ("..."); | |
913 | else | |
914 | print_frame_nameless_args (frame, start, num - args_printed, | |
915 | first, stream); | |
8d3b0994 | 916 | } |
8d3b0994 AC |
917 | } |
918 | ||
033a42c2 MK |
919 | /* Set the current source and line to the location given by frame |
920 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
921 | line is in the center of the next 'list'. */ | |
c789492a | 922 | |
7abfe014 | 923 | void |
bd2b40ac | 924 | set_current_sal_from_frame (frame_info_ptr frame) |
c789492a | 925 | { |
51abb421 | 926 | symtab_and_line sal = find_frame_sal (frame); |
5166082f | 927 | if (sal.symtab != NULL) |
51abb421 | 928 | set_current_source_symtab_and_line (sal); |
c789492a FL |
929 | } |
930 | ||
30c33a9f HZ |
931 | /* If ON, GDB will display disassembly of the next source line when |
932 | execution of the program being debugged stops. | |
481df73e HZ |
933 | If AUTO (which is the default), or there's no line info to determine |
934 | the source line of the next instruction, display disassembly of next | |
935 | instruction instead. */ | |
30c33a9f HZ |
936 | |
937 | static enum auto_boolean disassemble_next_line; | |
938 | ||
939 | static void | |
940 | show_disassemble_next_line (struct ui_file *file, int from_tty, | |
941 | struct cmd_list_element *c, | |
942 | const char *value) | |
943 | { | |
6cb06a8c TT |
944 | gdb_printf (file, |
945 | _("Debugger's willingness to use " | |
946 | "disassemble-next-line is %s.\n"), | |
947 | value); | |
30c33a9f HZ |
948 | } |
949 | ||
30c33a9f HZ |
950 | /* Use TRY_CATCH to catch the exception from the gdb_disassembly |
951 | because it will be broken by filter sometime. */ | |
952 | ||
953 | static void | |
13274fc3 UW |
954 | do_gdb_disassembly (struct gdbarch *gdbarch, |
955 | int how_many, CORE_ADDR low, CORE_ADDR high) | |
30c33a9f | 956 | { |
30c33a9f | 957 | |
a70b8144 | 958 | try |
30c33a9f | 959 | { |
7a8eb317 | 960 | gdb_disassembly (gdbarch, current_uiout, |
79a45e25 PA |
961 | DISASSEMBLY_RAW_INSN, how_many, |
962 | low, high); | |
30c33a9f | 963 | } |
230d2906 | 964 | catch (const gdb_exception_error &exception) |
b1d288d3 JK |
965 | { |
966 | /* If an exception was thrown while doing the disassembly, print | |
967 | the error message, to give the user a clue of what happened. */ | |
968 | exception_print (gdb_stderr, exception); | |
969 | } | |
30c33a9f HZ |
970 | } |
971 | ||
4b5e8d19 PW |
972 | /* Converts the PRINT_FRAME_INFO choice to an optional enum print_what. |
973 | Value not present indicates to the caller to use default values | |
974 | specific to the command being executed. */ | |
975 | ||
976 | static gdb::optional<enum print_what> | |
977 | print_frame_info_to_print_what (const char *print_frame_info) | |
978 | { | |
979 | for (int i = 0; print_frame_info_choices[i] != NULL; i++) | |
980 | if (print_frame_info == print_frame_info_choices[i]) | |
981 | return print_frame_info_print_what[i]; | |
982 | ||
f34652de | 983 | internal_error ("Unexpected print frame-info value `%s'.", |
4b5e8d19 PW |
984 | print_frame_info); |
985 | } | |
986 | ||
aa7ca1bb AH |
987 | /* Print the PC from FRAME, plus any flags, to UIOUT. */ |
988 | ||
989 | static void | |
bd2b40ac | 990 | print_pc (struct ui_out *uiout, struct gdbarch *gdbarch, frame_info_ptr frame, |
aa7ca1bb AH |
991 | CORE_ADDR pc) |
992 | { | |
993 | uiout->field_core_addr ("addr", gdbarch, pc); | |
994 | ||
995 | std::string flags = gdbarch_get_pc_address_flags (gdbarch, frame, pc); | |
996 | if (!flags.empty ()) | |
01add95b SM |
997 | { |
998 | uiout->text (" ["); | |
999 | uiout->field_string ("addr_flags", flags); | |
1000 | uiout->text ("]"); | |
1001 | } | |
aa7ca1bb AH |
1002 | } |
1003 | ||
4b5e8d19 PW |
1004 | /* See stack.h. */ |
1005 | ||
1006 | void | |
1007 | get_user_print_what_frame_info (gdb::optional<enum print_what> *what) | |
1008 | { | |
1009 | *what | |
1010 | = print_frame_info_to_print_what | |
dda83cd7 | 1011 | (user_frame_print_options.print_frame_info); |
4b5e8d19 PW |
1012 | } |
1013 | ||
033a42c2 | 1014 | /* Print information about frame FRAME. The output is format according |
4b5e8d19 PW |
1015 | to PRINT_LEVEL and PRINT_WHAT and PRINT_ARGS. For the meaning of |
1016 | PRINT_WHAT, see enum print_what comments in frame.h. | |
405feb71 | 1017 | Note that PRINT_WHAT is overridden if FP_OPTS.print_frame_info |
4b5e8d19 | 1018 | != print_frame_info_auto. |
033a42c2 MK |
1019 | |
1020 | Used in "where" output, and to emit breakpoint or step | |
1021 | messages. */ | |
c906108c | 1022 | |
7789c6f5 | 1023 | void |
d4c16835 | 1024 | print_frame_info (const frame_print_options &fp_opts, |
bd2b40ac | 1025 | frame_info_ptr frame, int print_level, |
08d72866 PA |
1026 | enum print_what print_what, int print_args, |
1027 | int set_current_sal) | |
c906108c | 1028 | { |
5af949e3 | 1029 | struct gdbarch *gdbarch = get_frame_arch (frame); |
c5394b80 JM |
1030 | int source_print; |
1031 | int location_print; | |
79a45e25 | 1032 | struct ui_out *uiout = current_uiout; |
c906108c | 1033 | |
4b5e8d19 PW |
1034 | if (!current_uiout->is_mi_like_p () |
1035 | && fp_opts.print_frame_info != print_frame_info_auto) | |
1036 | { | |
1037 | /* Use the specific frame information desired by the user. */ | |
1038 | print_what = *print_frame_info_to_print_what (fp_opts.print_frame_info); | |
1039 | } | |
1040 | ||
033a42c2 | 1041 | if (get_frame_type (frame) == DUMMY_FRAME |
36f15f55 UW |
1042 | || get_frame_type (frame) == SIGTRAMP_FRAME |
1043 | || get_frame_type (frame) == ARCH_FRAME) | |
c906108c | 1044 | { |
2e783024 | 1045 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); |
c906108c | 1046 | |
033a42c2 | 1047 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
5af949e3 | 1048 | gdbarch, get_frame_pc (frame)); |
6a3fe0a4 | 1049 | |
c906108c | 1050 | /* Do this regardless of SOURCE because we don't have any source |
dda83cd7 | 1051 | to list for this frame. */ |
0faf0076 | 1052 | if (print_level) |
dda83cd7 SM |
1053 | { |
1054 | uiout->text ("#"); | |
1055 | uiout->field_fmt_signed (2, ui_left, "level", | |
381befee | 1056 | frame_relative_level (frame)); |
dda83cd7 | 1057 | } |
112e8700 | 1058 | if (uiout->is_mi_like_p ()) |
dda83cd7 SM |
1059 | { |
1060 | annotate_frame_address (); | |
aa7ca1bb | 1061 | print_pc (uiout, gdbarch, frame, get_frame_pc (frame)); |
dda83cd7 SM |
1062 | annotate_frame_address_end (); |
1063 | } | |
6a3fe0a4 | 1064 | |
033a42c2 | 1065 | if (get_frame_type (frame) == DUMMY_FRAME) |
dda83cd7 SM |
1066 | { |
1067 | annotate_function_call (); | |
1068 | uiout->field_string ("func", "<function called from gdb>", | |
7f6aba03 | 1069 | metadata_style.style ()); |
075559bc | 1070 | } |
033a42c2 | 1071 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
dda83cd7 | 1072 | { |
075559bc | 1073 | annotate_signal_handler_caller (); |
dda83cd7 | 1074 | uiout->field_string ("func", "<signal handler called>", |
7f6aba03 | 1075 | metadata_style.style ()); |
dda83cd7 | 1076 | } |
36f15f55 | 1077 | else if (get_frame_type (frame) == ARCH_FRAME) |
dda83cd7 SM |
1078 | { |
1079 | uiout->field_string ("func", "<cross-architecture call>", | |
7f6aba03 | 1080 | metadata_style.style ()); |
36f15f55 | 1081 | } |
112e8700 | 1082 | uiout->text ("\n"); |
c906108c | 1083 | annotate_frame_end (); |
075559bc | 1084 | |
433e77fa HZ |
1085 | /* If disassemble-next-line is set to auto or on output the next |
1086 | instruction. */ | |
1087 | if (disassemble_next_line == AUTO_BOOLEAN_AUTO | |
1088 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1089 | do_gdb_disassembly (get_frame_arch (frame), 1, | |
1090 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
1091 | ||
c906108c SS |
1092 | return; |
1093 | } | |
1094 | ||
033a42c2 MK |
1095 | /* If FRAME is not the innermost frame, that normally means that |
1096 | FRAME->pc points to *after* the call instruction, and we want to | |
1097 | get the line containing the call, never the next line. But if | |
1098 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
1099 | next frame was not entered as the result of a call, and we want | |
1100 | to get the line containing FRAME->pc. */ | |
51abb421 | 1101 | symtab_and_line sal = find_frame_sal (frame); |
c906108c | 1102 | |
4b5e8d19 PW |
1103 | location_print = (print_what == LOCATION |
1104 | || print_what == SRC_AND_LOC | |
0faf0076 | 1105 | || print_what == LOC_AND_ADDRESS |
4b5e8d19 | 1106 | || print_what == SHORT_LOCATION); |
c5394b80 | 1107 | if (location_print || !sal.symtab) |
d4c16835 | 1108 | print_frame (fp_opts, frame, print_level, print_what, print_args, sal); |
c5394b80 | 1109 | |
0faf0076 | 1110 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 1111 | |
30c33a9f HZ |
1112 | /* If disassemble-next-line is set to auto or on and doesn't have |
1113 | the line debug messages for $pc, output the next instruction. */ | |
1114 | if ((disassemble_next_line == AUTO_BOOLEAN_AUTO | |
1115 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1116 | && source_print && !sal.symtab) | |
13274fc3 UW |
1117 | do_gdb_disassembly (get_frame_arch (frame), 1, |
1118 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
30c33a9f | 1119 | |
c5394b80 JM |
1120 | if (source_print && sal.symtab) |
1121 | { | |
0faf0076 | 1122 | int mid_statement = ((print_what == SRC_LINE) |
edb3359d | 1123 | && frame_show_address (frame, sal)); |
7c13f4e8 AB |
1124 | if (annotation_level > 0 |
1125 | && annotate_source_line (sal.symtab, sal.line, mid_statement, | |
1126 | get_frame_pc (frame))) | |
1127 | { | |
1128 | /* The call to ANNOTATE_SOURCE_LINE already printed the | |
1129 | annotation for this source line, so we avoid the two cases | |
1130 | below and do not print the actual source line. The | |
1131 | documentation for annotations makes it clear that the source | |
1132 | line annotation is printed __instead__ of printing the source | |
1133 | line, not as well as. | |
1134 | ||
1135 | However, if we fail to print the source line, which usually | |
1136 | means either the source file is missing, or the requested | |
1137 | line is out of range of the file, then we don't print the | |
1138 | source annotation, and will pass through the "normal" print | |
1139 | source line code below, the expectation is that this code | |
1140 | will print an appropriate error. */ | |
1141 | } | |
1142 | else if (deprecated_print_frame_info_listing_hook) | |
ec8e2b6d AB |
1143 | deprecated_print_frame_info_listing_hook (sal.symtab, sal.line, |
1144 | sal.line + 1, 0); | |
1145 | else | |
c5394b80 | 1146 | { |
ec8e2b6d AB |
1147 | struct value_print_options opts; |
1148 | ||
1149 | get_user_print_options (&opts); | |
1150 | /* We used to do this earlier, but that is clearly | |
1151 | wrong. This function is used by many different | |
1152 | parts of gdb, including normal_stop in infrun.c, | |
1153 | which uses this to print out the current PC | |
1154 | when we stepi/nexti into the middle of a source | |
1155 | line. Only the command line really wants this | |
1156 | behavior. Other UIs probably would like the | |
1157 | ability to decide for themselves if it is desired. */ | |
1158 | if (opts.addressprint && mid_statement) | |
c5394b80 | 1159 | { |
aa7ca1bb | 1160 | print_pc (uiout, gdbarch, frame, get_frame_pc (frame)); |
ec8e2b6d | 1161 | uiout->text ("\t"); |
c5394b80 | 1162 | } |
30c33a9f | 1163 | |
ec8e2b6d AB |
1164 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); |
1165 | } | |
c5394b80 | 1166 | |
153d79c4 AB |
1167 | /* If disassemble-next-line is set to on and there is line debug |
1168 | messages, output assembly codes for next line. */ | |
1169 | if (disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
1170 | do_gdb_disassembly (get_frame_arch (frame), -1, sal.pc, sal.end); | |
1171 | } | |
ec8e2b6d | 1172 | |
08d72866 | 1173 | if (set_current_sal) |
e3eebbd7 PA |
1174 | { |
1175 | CORE_ADDR pc; | |
1176 | ||
1177 | if (get_frame_pc_if_available (frame, &pc)) | |
eb2dd8df | 1178 | last_displayed_symtab_info.set (sal.pspace, pc, sal.symtab, sal.line); |
e3eebbd7 | 1179 | else |
eb2dd8df | 1180 | last_displayed_symtab_info.invalidate (); |
e3eebbd7 | 1181 | } |
c5394b80 JM |
1182 | |
1183 | annotate_frame_end (); | |
1184 | ||
1185 | gdb_flush (gdb_stdout); | |
1186 | } | |
1187 | ||
eb2dd8df | 1188 | /* See stack.h. */ |
1bfeeb0f JL |
1189 | |
1190 | void | |
1191 | clear_last_displayed_sal (void) | |
1192 | { | |
eb2dd8df | 1193 | last_displayed_symtab_info.invalidate (); |
1bfeeb0f JL |
1194 | } |
1195 | ||
eb2dd8df | 1196 | /* See stack.h. */ |
1bfeeb0f | 1197 | |
eb2dd8df | 1198 | bool |
1bfeeb0f JL |
1199 | last_displayed_sal_is_valid (void) |
1200 | { | |
eb2dd8df | 1201 | return last_displayed_symtab_info.is_valid (); |
1bfeeb0f JL |
1202 | } |
1203 | ||
eb2dd8df | 1204 | /* See stack.h. */ |
1bfeeb0f JL |
1205 | |
1206 | struct program_space * | |
1207 | get_last_displayed_pspace (void) | |
1208 | { | |
eb2dd8df | 1209 | return last_displayed_symtab_info.pspace (); |
1bfeeb0f JL |
1210 | } |
1211 | ||
eb2dd8df | 1212 | /* See stack.h. */ |
1bfeeb0f JL |
1213 | |
1214 | CORE_ADDR | |
1215 | get_last_displayed_addr (void) | |
1216 | { | |
eb2dd8df | 1217 | return last_displayed_symtab_info.address (); |
1bfeeb0f JL |
1218 | } |
1219 | ||
eb2dd8df | 1220 | /* See stack.h. */ |
1bfeeb0f JL |
1221 | |
1222 | struct symtab* | |
1223 | get_last_displayed_symtab (void) | |
1224 | { | |
eb2dd8df | 1225 | return last_displayed_symtab_info.symtab (); |
1bfeeb0f JL |
1226 | } |
1227 | ||
eb2dd8df | 1228 | /* See stack.h. */ |
1bfeeb0f JL |
1229 | |
1230 | int | |
1231 | get_last_displayed_line (void) | |
1232 | { | |
eb2dd8df | 1233 | return last_displayed_symtab_info.line (); |
1bfeeb0f JL |
1234 | } |
1235 | ||
eb2dd8df | 1236 | /* See stack.h. */ |
1bfeeb0f | 1237 | |
51abb421 PA |
1238 | symtab_and_line |
1239 | get_last_displayed_sal () | |
1bfeeb0f | 1240 | { |
51abb421 PA |
1241 | symtab_and_line sal; |
1242 | ||
eb2dd8df | 1243 | if (last_displayed_symtab_info.is_valid ()) |
1bfeeb0f | 1244 | { |
eb2dd8df AB |
1245 | sal.pspace = last_displayed_symtab_info.pspace (); |
1246 | sal.pc = last_displayed_symtab_info.address (); | |
1247 | sal.symtab = last_displayed_symtab_info.symtab (); | |
1248 | sal.line = last_displayed_symtab_info.line (); | |
1bfeeb0f | 1249 | } |
51abb421 PA |
1250 | |
1251 | return sal; | |
1bfeeb0f JL |
1252 | } |
1253 | ||
1254 | ||
c6dc63a1 TT |
1255 | /* Attempt to obtain the name, FUNLANG and optionally FUNCP of the function |
1256 | corresponding to FRAME. */ | |
e9e07ba6 | 1257 | |
c6dc63a1 | 1258 | gdb::unique_xmalloc_ptr<char> |
bd2b40ac | 1259 | find_frame_funname (frame_info_ptr frame, enum language *funlang, |
c6dc63a1 | 1260 | struct symbol **funcp) |
c5394b80 JM |
1261 | { |
1262 | struct symbol *func; | |
c6dc63a1 | 1263 | gdb::unique_xmalloc_ptr<char> funname; |
8b93c638 | 1264 | |
f8f6f20b | 1265 | *funlang = language_unknown; |
e9e07ba6 JK |
1266 | if (funcp) |
1267 | *funcp = NULL; | |
c5394b80 | 1268 | |
edb3359d | 1269 | func = get_frame_function (frame); |
c906108c SS |
1270 | if (func) |
1271 | { | |
987012b8 | 1272 | const char *print_name = func->print_name (); |
033a42c2 | 1273 | |
c1b5c1eb | 1274 | *funlang = func->language (); |
567238c9 KB |
1275 | if (funcp) |
1276 | *funcp = func; | |
1277 | if (*funlang == language_cplus) | |
c906108c | 1278 | { |
987012b8 | 1279 | /* It seems appropriate to use print_name() here, |
567238c9 KB |
1280 | to display the demangled name that we already have |
1281 | stored in the symbol table, but we stored a version | |
1282 | with DMGL_PARAMS turned on, and here we don't want to | |
1283 | display parameters. So remove the parameters. */ | |
1284 | funname = cp_remove_params (print_name); | |
c906108c | 1285 | } |
d10153cf | 1286 | |
567238c9 KB |
1287 | /* If we didn't hit the C++ case above, set *funname |
1288 | here. */ | |
1289 | if (funname == NULL) | |
1290 | funname.reset (xstrdup (print_name)); | |
c906108c SS |
1291 | } |
1292 | else | |
1293 | { | |
7cbd4a93 | 1294 | struct bound_minimal_symbol msymbol; |
e3eebbd7 | 1295 | CORE_ADDR pc; |
033a42c2 | 1296 | |
e3eebbd7 | 1297 | if (!get_frame_address_in_block_if_available (frame, &pc)) |
c6dc63a1 | 1298 | return funname; |
e3eebbd7 PA |
1299 | |
1300 | msymbol = lookup_minimal_symbol_by_pc (pc); | |
7cbd4a93 | 1301 | if (msymbol.minsym != NULL) |
c906108c | 1302 | { |
c9d95fa3 | 1303 | funname.reset (xstrdup (msymbol.minsym->print_name ())); |
c1b5c1eb | 1304 | *funlang = msymbol.minsym->language (); |
c906108c SS |
1305 | } |
1306 | } | |
c6dc63a1 TT |
1307 | |
1308 | return funname; | |
f8f6f20b TJB |
1309 | } |
1310 | ||
1311 | static void | |
d4c16835 | 1312 | print_frame (const frame_print_options &fp_opts, |
bd2b40ac | 1313 | frame_info_ptr frame, int print_level, |
f8f6f20b TJB |
1314 | enum print_what print_what, int print_args, |
1315 | struct symtab_and_line sal) | |
1316 | { | |
5af949e3 | 1317 | struct gdbarch *gdbarch = get_frame_arch (frame); |
79a45e25 | 1318 | struct ui_out *uiout = current_uiout; |
f8f6f20b | 1319 | enum language funlang = language_unknown; |
f8f6f20b | 1320 | struct value_print_options opts; |
e9e07ba6 | 1321 | struct symbol *func; |
e3eebbd7 PA |
1322 | CORE_ADDR pc = 0; |
1323 | int pc_p; | |
1324 | ||
1325 | pc_p = get_frame_pc_if_available (frame, &pc); | |
f8f6f20b | 1326 | |
c6dc63a1 TT |
1327 | gdb::unique_xmalloc_ptr<char> funname |
1328 | = find_frame_funname (frame, &funlang, &func); | |
c906108c | 1329 | |
033a42c2 | 1330 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
e3eebbd7 | 1331 | gdbarch, pc); |
c5394b80 | 1332 | |
76f9c9cf TT |
1333 | { |
1334 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); | |
c5394b80 | 1335 | |
76f9c9cf | 1336 | if (print_level) |
c5394b80 | 1337 | { |
76f9c9cf | 1338 | uiout->text ("#"); |
381befee TT |
1339 | uiout->field_fmt_signed (2, ui_left, "level", |
1340 | frame_relative_level (frame)); | |
c5394b80 | 1341 | } |
76f9c9cf TT |
1342 | get_user_print_options (&opts); |
1343 | if (opts.addressprint) | |
1344 | if (!sal.symtab | |
1345 | || frame_show_address (frame, sal) | |
1346 | || print_what == LOC_AND_ADDRESS) | |
311b5970 | 1347 | { |
76f9c9cf TT |
1348 | annotate_frame_address (); |
1349 | if (pc_p) | |
aa7ca1bb | 1350 | print_pc (uiout, gdbarch, frame, pc); |
76f9c9cf | 1351 | else |
35fb8261 | 1352 | uiout->field_string ("addr", "<unavailable>", |
7f6aba03 | 1353 | metadata_style.style ()); |
76f9c9cf TT |
1354 | annotate_frame_address_end (); |
1355 | uiout->text (" in "); | |
311b5970 | 1356 | } |
76f9c9cf TT |
1357 | annotate_frame_function_name (); |
1358 | ||
1359 | string_file stb; | |
0426ad51 | 1360 | gdb_puts (funname ? funname.get () : "??", &stb); |
e43b10e1 | 1361 | uiout->field_stream ("func", stb, function_name_style.style ()); |
6c92c339 | 1362 | uiout->wrap_hint (3); |
76f9c9cf | 1363 | annotate_frame_args (); |
cbe56571 | 1364 | |
76f9c9cf TT |
1365 | uiout->text (" ("); |
1366 | if (print_args) | |
10f489e5 | 1367 | { |
76f9c9cf TT |
1368 | int numargs; |
1369 | ||
1370 | if (gdbarch_frame_num_args_p (gdbarch)) | |
10f489e5 | 1371 | { |
76f9c9cf TT |
1372 | numargs = gdbarch_frame_num_args (gdbarch, frame); |
1373 | gdb_assert (numargs >= 0); | |
10f489e5 | 1374 | } |
76f9c9cf TT |
1375 | else |
1376 | numargs = -1; | |
1377 | ||
1378 | { | |
1379 | ui_out_emit_list list_emitter (uiout, "args"); | |
a70b8144 | 1380 | try |
76f9c9cf | 1381 | { |
d4c16835 | 1382 | print_frame_args (fp_opts, func, frame, numargs, gdb_stdout); |
76f9c9cf | 1383 | } |
230d2906 | 1384 | catch (const gdb_exception_error &e) |
76f9c9cf TT |
1385 | { |
1386 | } | |
10f489e5 | 1387 | |
76f9c9cf TT |
1388 | /* FIXME: ARGS must be a list. If one argument is a string it |
1389 | will have " that will not be properly escaped. */ | |
1390 | } | |
1391 | QUIT; | |
10f489e5 | 1392 | } |
76f9c9cf | 1393 | uiout->text (")"); |
4b5e8d19 | 1394 | if (print_what != SHORT_LOCATION && sal.symtab) |
76f9c9cf TT |
1395 | { |
1396 | const char *filename_display; | |
1b56eb55 | 1397 | |
76f9c9cf TT |
1398 | filename_display = symtab_to_filename_for_display (sal.symtab); |
1399 | annotate_frame_source_begin (); | |
6c92c339 | 1400 | uiout->wrap_hint (3); |
76f9c9cf TT |
1401 | uiout->text (" at "); |
1402 | annotate_frame_source_file (); | |
e43b10e1 TT |
1403 | uiout->field_string ("file", filename_display, |
1404 | file_name_style.style ()); | |
76f9c9cf TT |
1405 | if (uiout->is_mi_like_p ()) |
1406 | { | |
1407 | const char *fullname = symtab_to_fullname (sal.symtab); | |
433759f7 | 1408 | |
76f9c9cf TT |
1409 | uiout->field_string ("fullname", fullname); |
1410 | } | |
1411 | annotate_frame_source_file_end (); | |
1412 | uiout->text (":"); | |
1413 | annotate_frame_source_line (); | |
381befee | 1414 | uiout->field_signed ("line", sal.line); |
76f9c9cf TT |
1415 | annotate_frame_source_end (); |
1416 | } | |
c906108c | 1417 | |
4b5e8d19 PW |
1418 | if (print_what != SHORT_LOCATION |
1419 | && pc_p && (funname == NULL || sal.symtab == NULL)) | |
76f9c9cf | 1420 | { |
6d08aed3 TT |
1421 | const char *lib |
1422 | = solib_name_from_address (get_frame_program_space (frame), | |
1423 | get_frame_pc (frame)); | |
4d1eb6b4 | 1424 | |
76f9c9cf TT |
1425 | if (lib) |
1426 | { | |
1427 | annotate_frame_where (); | |
6c92c339 | 1428 | uiout->wrap_hint (2); |
76f9c9cf | 1429 | uiout->text (" from "); |
9d636d67 | 1430 | uiout->field_string ("from", lib, file_name_style.style ()); |
76f9c9cf TT |
1431 | } |
1432 | } | |
6d52907e JV |
1433 | if (uiout->is_mi_like_p ()) |
1434 | uiout->field_string ("arch", | |
1435 | (gdbarch_bfd_arch_info (gdbarch))->printable_name); | |
76f9c9cf | 1436 | } |
e514a9d6 | 1437 | |
112e8700 | 1438 | uiout->text ("\n"); |
c906108c SS |
1439 | } |
1440 | \f | |
c5aa993b | 1441 | |
f67ffa6a AB |
1442 | /* Completion function for "frame function", "info frame function", and |
1443 | "select-frame function" commands. */ | |
c906108c | 1444 | |
cb8c24b6 | 1445 | static void |
f67ffa6a AB |
1446 | frame_selection_by_function_completer (struct cmd_list_element *ignore, |
1447 | completion_tracker &tracker, | |
1448 | const char *text, const char *word) | |
c906108c | 1449 | { |
f67ffa6a AB |
1450 | /* This is used to complete function names within a stack. It would be |
1451 | nice if we only offered functions that were actually in the stack. | |
1452 | However, this would mean unwinding the stack to completion, which | |
1453 | could take too long, or on a corrupted stack, possibly not end. | |
1454 | Instead, we offer all symbol names as a safer choice. */ | |
1455 | collect_symbol_completion_matches (tracker, | |
1456 | complete_symbol_mode::EXPRESSION, | |
1457 | symbol_name_match_type::EXPRESSION, | |
1458 | text, word); | |
1c8831c5 AC |
1459 | } |
1460 | ||
f67ffa6a AB |
1461 | /* Core of all the "info frame" sub-commands. Print information about a |
1462 | frame FI. If SELECTED_FRAME_P is true then the user didn't provide a | |
1463 | frame specification, they just entered 'info frame'. If the user did | |
1464 | provide a frame specification (for example 'info frame 0', 'info frame | |
1465 | level 1') then SELECTED_FRAME_P will be false. */ | |
c906108c SS |
1466 | |
1467 | static void | |
bd2b40ac | 1468 | info_frame_command_core (frame_info_ptr fi, bool selected_frame_p) |
c906108c | 1469 | { |
c906108c SS |
1470 | struct symbol *func; |
1471 | struct symtab *s; | |
bd2b40ac | 1472 | frame_info_ptr calling_frame_info; |
167e4384 | 1473 | int numregs; |
0d5cff50 | 1474 | const char *funname = 0; |
c906108c | 1475 | enum language funlang = language_unknown; |
82de1e5b | 1476 | const char *pc_regname; |
7500260a | 1477 | struct gdbarch *gdbarch; |
008f8f2e PA |
1478 | CORE_ADDR frame_pc; |
1479 | int frame_pc_p; | |
e5e6f788 YQ |
1480 | /* Initialize it to avoid "may be used uninitialized" warning. */ |
1481 | CORE_ADDR caller_pc = 0; | |
492d29ea | 1482 | int caller_pc_p = 0; |
c906108c | 1483 | |
12368003 | 1484 | gdbarch = get_frame_arch (fi); |
c906108c | 1485 | |
82de1e5b AC |
1486 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
1487 | is not a good name. */ | |
12368003 | 1488 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1489 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
1490 | easily not match that of the internal value returned by |
1491 | get_frame_pc(). */ | |
12368003 | 1492 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 1493 | else |
3e8c568d | 1494 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
1495 | architectures will often have a hardware register called "pc", |
1496 | and that register's value, again, can easily not match | |
1497 | get_frame_pc(). */ | |
1498 | pc_regname = "pc"; | |
1499 | ||
008f8f2e | 1500 | frame_pc_p = get_frame_pc_if_available (fi, &frame_pc); |
c906108c | 1501 | func = get_frame_function (fi); |
51abb421 | 1502 | symtab_and_line sal = find_frame_sal (fi); |
008f8f2e | 1503 | s = sal.symtab; |
2003f3d8 | 1504 | gdb::unique_xmalloc_ptr<char> func_only; |
c906108c SS |
1505 | if (func) |
1506 | { | |
987012b8 | 1507 | funname = func->print_name (); |
c1b5c1eb | 1508 | funlang = func->language (); |
c5aa993b JM |
1509 | if (funlang == language_cplus) |
1510 | { | |
987012b8 | 1511 | /* It seems appropriate to use print_name() here, |
3567439c DJ |
1512 | to display the demangled name that we already have |
1513 | stored in the symbol table, but we stored a version | |
1514 | with DMGL_PARAMS turned on, and here we don't want to | |
1515 | display parameters. So remove the parameters. */ | |
109483d9 | 1516 | func_only = cp_remove_params (funname); |
433759f7 | 1517 | |
3567439c | 1518 | if (func_only) |
2003f3d8 | 1519 | funname = func_only.get (); |
c5aa993b | 1520 | } |
c906108c | 1521 | } |
008f8f2e | 1522 | else if (frame_pc_p) |
c906108c | 1523 | { |
7cbd4a93 | 1524 | struct bound_minimal_symbol msymbol; |
033a42c2 | 1525 | |
008f8f2e | 1526 | msymbol = lookup_minimal_symbol_by_pc (frame_pc); |
7cbd4a93 | 1527 | if (msymbol.minsym != NULL) |
c906108c | 1528 | { |
c9d95fa3 | 1529 | funname = msymbol.minsym->print_name (); |
c1b5c1eb | 1530 | funlang = msymbol.minsym->language (); |
c906108c SS |
1531 | } |
1532 | } | |
1533 | calling_frame_info = get_prev_frame (fi); | |
1534 | ||
1c8831c5 | 1535 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 1536 | { |
6cb06a8c TT |
1537 | gdb_printf (_("Stack level %d, frame at "), |
1538 | frame_relative_level (fi)); | |
c906108c SS |
1539 | } |
1540 | else | |
1541 | { | |
6cb06a8c | 1542 | gdb_printf (_("Stack frame at ")); |
c906108c | 1543 | } |
0426ad51 | 1544 | gdb_puts (paddress (gdbarch, get_frame_base (fi))); |
6cb06a8c TT |
1545 | gdb_printf (":\n"); |
1546 | gdb_printf (" %s = ", pc_regname); | |
008f8f2e | 1547 | if (frame_pc_p) |
0426ad51 | 1548 | gdb_puts (paddress (gdbarch, get_frame_pc (fi))); |
008f8f2e | 1549 | else |
7f6aba03 | 1550 | fputs_styled ("<unavailable>", metadata_style.style (), gdb_stdout); |
c906108c | 1551 | |
1285ce86 | 1552 | gdb_stdout->wrap_here (3); |
c906108c SS |
1553 | if (funname) |
1554 | { | |
6cb06a8c | 1555 | gdb_printf (" in "); |
0426ad51 | 1556 | gdb_puts (funname); |
c906108c | 1557 | } |
1285ce86 | 1558 | gdb_stdout->wrap_here (3); |
c906108c | 1559 | if (sal.symtab) |
6cb06a8c | 1560 | gdb_printf |
9d636d67 TT |
1561 | (" (%ps:%d)", |
1562 | styled_string (file_name_style.style (), | |
1563 | symtab_to_filename_for_display (sal.symtab)), | |
1564 | sal.line); | |
0426ad51 | 1565 | gdb_puts ("; "); |
1285ce86 | 1566 | gdb_stdout->wrap_here (4); |
6cb06a8c | 1567 | gdb_printf ("saved %s = ", pc_regname); |
782d47df | 1568 | |
a038fa3e | 1569 | if (!frame_id_p (frame_unwind_caller_id (fi))) |
c620c3e4 | 1570 | val_print_not_saved (gdb_stdout); |
a038fa3e | 1571 | else |
782d47df | 1572 | { |
a70b8144 | 1573 | try |
782d47df | 1574 | { |
a038fa3e MM |
1575 | caller_pc = frame_unwind_caller_pc (fi); |
1576 | caller_pc_p = 1; | |
782d47df | 1577 | } |
230d2906 | 1578 | catch (const gdb_exception_error &ex) |
a038fa3e MM |
1579 | { |
1580 | switch (ex.error) | |
1581 | { | |
1582 | case NOT_AVAILABLE_ERROR: | |
1583 | val_print_unavailable (gdb_stdout); | |
1584 | break; | |
1585 | case OPTIMIZED_OUT_ERROR: | |
1586 | val_print_not_saved (gdb_stdout); | |
1587 | break; | |
1588 | default: | |
7f6aba03 TT |
1589 | fprintf_styled (gdb_stdout, metadata_style.style (), |
1590 | _("<error: %s>"), | |
1591 | ex.what ()); | |
a038fa3e MM |
1592 | break; |
1593 | } | |
1594 | } | |
782d47df | 1595 | } |
492d29ea PA |
1596 | |
1597 | if (caller_pc_p) | |
0426ad51 | 1598 | gdb_puts (paddress (gdbarch, caller_pc)); |
6cb06a8c | 1599 | gdb_printf ("\n"); |
c906108c | 1600 | |
55feb689 DJ |
1601 | if (calling_frame_info == NULL) |
1602 | { | |
1603 | enum unwind_stop_reason reason; | |
1604 | ||
1605 | reason = get_frame_unwind_stop_reason (fi); | |
1606 | if (reason != UNWIND_NO_REASON) | |
6cb06a8c TT |
1607 | gdb_printf (_(" Outermost frame: %s\n"), |
1608 | frame_stop_reason_string (fi)); | |
55feb689 | 1609 | } |
111c6489 | 1610 | else if (get_frame_type (fi) == TAILCALL_FRAME) |
0426ad51 | 1611 | gdb_puts (" tail call frame"); |
edb3359d | 1612 | else if (get_frame_type (fi) == INLINE_FRAME) |
6cb06a8c TT |
1613 | gdb_printf (" inlined into frame %d", |
1614 | frame_relative_level (get_prev_frame (fi))); | |
edb3359d | 1615 | else |
c906108c | 1616 | { |
6cb06a8c | 1617 | gdb_printf (" called by frame at "); |
0426ad51 | 1618 | gdb_puts (paddress (gdbarch, get_frame_base (calling_frame_info))); |
c906108c | 1619 | } |
75e3c1f9 | 1620 | if (get_next_frame (fi) && calling_frame_info) |
0426ad51 | 1621 | gdb_puts (","); |
1285ce86 | 1622 | gdb_stdout->wrap_here (3); |
75e3c1f9 | 1623 | if (get_next_frame (fi)) |
c906108c | 1624 | { |
6cb06a8c | 1625 | gdb_printf (" caller of frame at "); |
0426ad51 | 1626 | gdb_puts (paddress (gdbarch, get_frame_base (get_next_frame (fi)))); |
c906108c | 1627 | } |
75e3c1f9 | 1628 | if (get_next_frame (fi) || calling_frame_info) |
0426ad51 | 1629 | gdb_puts ("\n"); |
55feb689 | 1630 | |
c906108c | 1631 | if (s) |
6cb06a8c TT |
1632 | gdb_printf (" source language %s.\n", |
1633 | language_str (s->language ())); | |
c906108c | 1634 | |
c906108c SS |
1635 | { |
1636 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1637 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1638 | /* Number of args for this frame, or -1 if unknown. */ |
1639 | int numargs; | |
1640 | ||
1641 | if (arg_list == 0) | |
6cb06a8c | 1642 | gdb_printf (" Arglist at unknown address.\n"); |
c906108c SS |
1643 | else |
1644 | { | |
6cb06a8c | 1645 | gdb_printf (" Arglist at "); |
0426ad51 | 1646 | gdb_puts (paddress (gdbarch, arg_list)); |
6cb06a8c | 1647 | gdb_printf (","); |
c906108c | 1648 | |
7500260a | 1649 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1650 | { |
1651 | numargs = -1; | |
0426ad51 | 1652 | gdb_puts (" args: "); |
983a287a | 1653 | } |
c906108c | 1654 | else |
983a287a | 1655 | { |
7500260a | 1656 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1657 | gdb_assert (numargs >= 0); |
1658 | if (numargs == 0) | |
0426ad51 | 1659 | gdb_puts (" no args."); |
983a287a | 1660 | else if (numargs == 1) |
0426ad51 | 1661 | gdb_puts (" 1 arg: "); |
983a287a | 1662 | else |
6cb06a8c | 1663 | gdb_printf (" %d args: ", numargs); |
983a287a | 1664 | } |
3dc9dde2 | 1665 | |
d4c16835 PA |
1666 | print_frame_args (user_frame_print_options, |
1667 | func, fi, numargs, gdb_stdout); | |
0426ad51 | 1668 | gdb_puts ("\n"); |
c906108c SS |
1669 | } |
1670 | } | |
1671 | { | |
1672 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1673 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1674 | |
1675 | if (arg_list == 0) | |
6cb06a8c | 1676 | gdb_printf (" Locals at unknown address,"); |
c906108c SS |
1677 | else |
1678 | { | |
6cb06a8c | 1679 | gdb_printf (" Locals at "); |
0426ad51 | 1680 | gdb_puts (paddress (gdbarch, arg_list)); |
6cb06a8c | 1681 | gdb_printf (","); |
c906108c SS |
1682 | } |
1683 | } | |
1684 | ||
4f460812 AC |
1685 | /* Print as much information as possible on the location of all the |
1686 | registers. */ | |
1687 | { | |
4f460812 AC |
1688 | int count; |
1689 | int i; | |
1690 | int need_nl = 1; | |
b0e4b369 | 1691 | int sp_regnum = gdbarch_sp_regnum (gdbarch); |
4f460812 AC |
1692 | |
1693 | /* The sp is special; what's displayed isn't the save address, but | |
1694 | the value of the previous frame's sp. This is a legacy thing, | |
1695 | at one stage the frame cached the previous frame's SP instead | |
1696 | of its address, hence it was easiest to just display the cached | |
1697 | value. */ | |
b0e4b369 | 1698 | if (sp_regnum >= 0) |
4f460812 | 1699 | { |
b0e4b369 AH |
1700 | struct value *value = frame_unwind_register_value (fi, sp_regnum); |
1701 | gdb_assert (value != NULL); | |
1702 | ||
d00664db | 1703 | if (!value->optimized_out () && value->entirely_available ()) |
4f460812 | 1704 | { |
736355f2 | 1705 | if (value->lval () == not_lval) |
b0e4b369 AH |
1706 | { |
1707 | CORE_ADDR sp; | |
1708 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1709 | int sp_size = register_size (gdbarch, sp_regnum); | |
1710 | ||
50888e42 | 1711 | sp = extract_unsigned_integer |
efaf1ae0 | 1712 | (value->contents_all ().data (), sp_size, byte_order); |
b0e4b369 | 1713 | |
6cb06a8c | 1714 | gdb_printf (" Previous frame's sp is "); |
0426ad51 | 1715 | gdb_puts (paddress (gdbarch, sp)); |
6cb06a8c | 1716 | gdb_printf ("\n"); |
b0e4b369 | 1717 | } |
736355f2 | 1718 | else if (value->lval () == lval_memory) |
b0e4b369 | 1719 | { |
6cb06a8c | 1720 | gdb_printf (" Previous frame's sp at "); |
9feb2d07 | 1721 | gdb_puts (paddress (gdbarch, value->address ())); |
6cb06a8c | 1722 | gdb_printf ("\n"); |
b0e4b369 | 1723 | } |
736355f2 | 1724 | else if (value->lval () == lval_register) |
b0e4b369 | 1725 | { |
6cb06a8c TT |
1726 | gdb_printf (" Previous frame's sp in %s\n", |
1727 | gdbarch_register_name (gdbarch, | |
1728 | VALUE_REGNUM (value))); | |
b0e4b369 AH |
1729 | } |
1730 | ||
1731 | release_value (value); | |
4f460812 AC |
1732 | need_nl = 0; |
1733 | } | |
1734 | /* else keep quiet. */ | |
1735 | } | |
1736 | ||
1737 | count = 0; | |
f6efe3f8 | 1738 | numregs = gdbarch_num_cooked_regs (gdbarch); |
4f460812 | 1739 | for (i = 0; i < numregs; i++) |
b0e4b369 | 1740 | if (i != sp_regnum |
7500260a | 1741 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4f460812 | 1742 | { |
b0e4b369 AH |
1743 | enum lval_type lval; |
1744 | int optimized; | |
1745 | int unavailable; | |
1746 | CORE_ADDR addr; | |
1747 | int realnum; | |
1748 | ||
4f460812 | 1749 | /* Find out the location of the saved register without |
dda83cd7 | 1750 | fetching the corresponding value. */ |
0fdb4f18 PA |
1751 | frame_register_unwind (fi, i, &optimized, &unavailable, |
1752 | &lval, &addr, &realnum, NULL); | |
4f460812 AC |
1753 | /* For moment, only display registers that were saved on the |
1754 | stack. */ | |
0fdb4f18 | 1755 | if (!optimized && !unavailable && lval == lval_memory) |
4f460812 AC |
1756 | { |
1757 | if (count == 0) | |
0426ad51 | 1758 | gdb_puts (" Saved registers:\n "); |
4f460812 | 1759 | else |
0426ad51 | 1760 | gdb_puts (","); |
1285ce86 | 1761 | gdb_stdout->wrap_here (1); |
6cb06a8c TT |
1762 | gdb_printf (" %s at ", |
1763 | gdbarch_register_name (gdbarch, i)); | |
0426ad51 | 1764 | gdb_puts (paddress (gdbarch, addr)); |
4f460812 AC |
1765 | count++; |
1766 | } | |
1767 | } | |
1768 | if (count || need_nl) | |
0426ad51 | 1769 | gdb_puts ("\n"); |
4f460812 | 1770 | } |
c906108c SS |
1771 | } |
1772 | ||
6a70eb7d PW |
1773 | /* Return the innermost frame at level LEVEL. */ |
1774 | ||
bd2b40ac | 1775 | static frame_info_ptr |
6a70eb7d PW |
1776 | leading_innermost_frame (int level) |
1777 | { | |
bd2b40ac | 1778 | frame_info_ptr leading; |
6a70eb7d PW |
1779 | |
1780 | leading = get_current_frame (); | |
1781 | ||
1782 | gdb_assert (level >= 0); | |
1783 | ||
1784 | while (leading != nullptr && level) | |
1785 | { | |
1786 | QUIT; | |
1787 | leading = get_prev_frame (leading); | |
1788 | level--; | |
1789 | } | |
1790 | ||
1791 | return leading; | |
1792 | } | |
1793 | ||
1794 | /* Return the starting frame needed to handle COUNT outermost frames. */ | |
1795 | ||
bd2b40ac | 1796 | static frame_info_ptr |
6a70eb7d PW |
1797 | trailing_outermost_frame (int count) |
1798 | { | |
bd2b40ac TT |
1799 | frame_info_ptr current; |
1800 | frame_info_ptr trailing; | |
6a70eb7d PW |
1801 | |
1802 | trailing = get_current_frame (); | |
1803 | ||
1804 | gdb_assert (count > 0); | |
1805 | ||
1806 | current = trailing; | |
1807 | while (current != nullptr && count--) | |
1808 | { | |
1809 | QUIT; | |
1810 | current = get_prev_frame (current); | |
1811 | } | |
1812 | ||
1813 | /* Will stop when CURRENT reaches the top of the stack. | |
1814 | TRAILING will be COUNT below it. */ | |
1815 | while (current != nullptr) | |
1816 | { | |
1817 | QUIT; | |
1818 | trailing = get_prev_frame (trailing); | |
1819 | current = get_prev_frame (current); | |
1820 | } | |
1821 | ||
1822 | return trailing; | |
1823 | } | |
1824 | ||
f67ffa6a AB |
1825 | /* The core of all the "select-frame" sub-commands. Just wraps a call to |
1826 | SELECT_FRAME. */ | |
1827 | ||
1828 | static void | |
bd2b40ac | 1829 | select_frame_command_core (frame_info_ptr fi, bool ignored) |
f67ffa6a | 1830 | { |
bd2b40ac | 1831 | frame_info_ptr prev_frame = get_selected_frame (); |
f67ffa6a | 1832 | select_frame (fi); |
79952e69 | 1833 | if (get_selected_frame () != prev_frame) |
77cd03e2 | 1834 | notify_user_selected_context_changed (USER_SELECTED_FRAME); |
f67ffa6a AB |
1835 | } |
1836 | ||
f67ffa6a AB |
1837 | /* The core of all the "frame" sub-commands. Select frame FI, and if this |
1838 | means we change frame send out a change notification (otherwise, just | |
1839 | reprint the current frame summary). */ | |
1840 | ||
1841 | static void | |
bd2b40ac | 1842 | frame_command_core (frame_info_ptr fi, bool ignored) |
f67ffa6a | 1843 | { |
bd2b40ac | 1844 | frame_info_ptr prev_frame = get_selected_frame (); |
f67ffa6a | 1845 | select_frame (fi); |
79952e69 | 1846 | if (get_selected_frame () != prev_frame) |
77cd03e2 | 1847 | notify_user_selected_context_changed (USER_SELECTED_FRAME); |
f67ffa6a AB |
1848 | else |
1849 | print_selected_thread_frame (current_uiout, USER_SELECTED_FRAME); | |
1850 | } | |
1851 | ||
1852 | /* The three commands 'frame', 'select-frame', and 'info frame' all have a | |
1853 | common set of sub-commands that allow a specific frame to be selected. | |
1854 | All of the sub-command functions are static methods within this class | |
1855 | template which is then instantiated below. The template parameter is a | |
1856 | callback used to implement the functionality of the base command | |
1857 | ('frame', 'select-frame', or 'info frame'). | |
1858 | ||
1859 | In the template parameter FI is the frame being selected. The | |
1860 | SELECTED_FRAME_P flag is true if the frame being selected was done by | |
1861 | default, which happens when the user uses the base command with no | |
1862 | arguments. For example the commands 'info frame', 'select-frame', | |
1863 | 'frame' will all cause SELECTED_FRAME_P to be true. In all other cases | |
1864 | SELECTED_FRAME_P is false. */ | |
1865 | ||
bd2b40ac | 1866 | template <void (*FPTR) (frame_info_ptr fi, bool selected_frame_p)> |
f67ffa6a AB |
1867 | class frame_command_helper |
1868 | { | |
1869 | public: | |
1870 | ||
1871 | /* The "frame level" family of commands. The ARG is an integer that is | |
1872 | the frame's level in the stack. */ | |
1873 | static void | |
1874 | level (const char *arg, int from_tty) | |
1875 | { | |
1876 | int level = value_as_long (parse_and_eval (arg)); | |
bd2b40ac | 1877 | frame_info_ptr fid |
f67ffa6a AB |
1878 | = find_relative_frame (get_current_frame (), &level); |
1879 | if (level != 0) | |
1880 | error (_("No frame at level %s."), arg); | |
1881 | FPTR (fid, false); | |
1882 | } | |
1883 | ||
1884 | /* The "frame address" family of commands. ARG is a stack-pointer | |
1885 | address for an existing frame. This command does not allow new | |
1886 | frames to be created. */ | |
1887 | ||
1888 | static void | |
1889 | address (const char *arg, int from_tty) | |
1890 | { | |
1891 | CORE_ADDR addr = value_as_address (parse_and_eval (arg)); | |
bd2b40ac | 1892 | frame_info_ptr fid = find_frame_for_address (addr); |
f67ffa6a AB |
1893 | if (fid == NULL) |
1894 | error (_("No frame at address %s."), arg); | |
1895 | FPTR (fid, false); | |
1896 | } | |
1897 | ||
1898 | /* The "frame view" family of commands. ARG is one or two addresses and | |
1899 | is used to view a frame that might be outside the current backtrace. | |
1900 | The addresses are stack-pointer address, and (optional) pc-address. */ | |
1901 | ||
1902 | static void | |
1903 | view (const char *args, int from_tty) | |
1904 | { | |
bd2b40ac | 1905 | frame_info_ptr fid; |
f67ffa6a AB |
1906 | |
1907 | if (args == NULL) | |
01add95b | 1908 | error (_("Missing address argument to view a frame")); |
f67ffa6a AB |
1909 | |
1910 | gdb_argv argv (args); | |
1911 | ||
1912 | if (argv.count () == 2) | |
1913 | { | |
1914 | CORE_ADDR addr[2]; | |
1915 | ||
1916 | addr [0] = value_as_address (parse_and_eval (argv[0])); | |
1917 | addr [1] = value_as_address (parse_and_eval (argv[1])); | |
1918 | fid = create_new_frame (addr[0], addr[1]); | |
1919 | } | |
1920 | else | |
1921 | { | |
1922 | CORE_ADDR addr = value_as_address (parse_and_eval (argv[0])); | |
1923 | fid = create_new_frame (addr, false); | |
1924 | } | |
1925 | FPTR (fid, false); | |
1926 | } | |
1927 | ||
1928 | /* The "frame function" family of commands. ARG is the name of a | |
1929 | function within the stack, the first function (searching from frame | |
1930 | 0) with that name will be selected. */ | |
1931 | ||
1932 | static void | |
1933 | function (const char *arg, int from_tty) | |
1934 | { | |
1935 | if (arg == NULL) | |
1936 | error (_("Missing function name argument")); | |
bd2b40ac | 1937 | frame_info_ptr fid = find_frame_for_function (arg); |
f67ffa6a AB |
1938 | if (fid == NULL) |
1939 | error (_("No frame for function \"%s\"."), arg); | |
1940 | FPTR (fid, false); | |
1941 | } | |
1942 | ||
1943 | /* The "frame" base command, that is, when no sub-command is specified. | |
1944 | If one argument is provided then we assume that this is a frame's | |
1945 | level as historically, this was the supported command syntax that was | |
1946 | used most often. | |
1947 | ||
1948 | If no argument is provided, then the current frame is selected. */ | |
1949 | ||
1950 | static void | |
1951 | base_command (const char *arg, int from_tty) | |
1952 | { | |
1953 | if (arg == NULL) | |
1954 | FPTR (get_selected_frame (_("No stack.")), true); | |
1955 | else | |
1956 | level (arg, from_tty); | |
1957 | } | |
1958 | }; | |
1959 | ||
1960 | /* Instantiate three FRAME_COMMAND_HELPER instances to implement the | |
1961 | sub-commands for 'info frame', 'frame', and 'select-frame' commands. */ | |
1962 | ||
1963 | static frame_command_helper <info_frame_command_core> info_frame_cmd; | |
1964 | static frame_command_helper <frame_command_core> frame_cmd; | |
1965 | static frame_command_helper <select_frame_command_core> select_frame_cmd; | |
1966 | ||
033a42c2 MK |
1967 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1968 | frames. */ | |
c906108c SS |
1969 | |
1970 | static void | |
d4c16835 PA |
1971 | backtrace_command_1 (const frame_print_options &fp_opts, |
1972 | const backtrace_cmd_options &bt_opts, | |
1973 | const char *count_exp, int from_tty) | |
1974 | ||
c906108c | 1975 | { |
bd2b40ac | 1976 | frame_info_ptr fi; |
52f0bd74 | 1977 | int count; |
fb7eb8b5 | 1978 | int py_start = 0, py_end = 0; |
6dddc817 | 1979 | enum ext_lang_bt_status result = EXT_LANG_BT_ERROR; |
c906108c | 1980 | |
841de120 | 1981 | if (!target_has_stack ()) |
8a3fe4f8 | 1982 | error (_("No stack.")); |
c906108c | 1983 | |
c906108c SS |
1984 | if (count_exp) |
1985 | { | |
bb518678 | 1986 | count = parse_and_eval_long (count_exp); |
c906108c | 1987 | if (count < 0) |
fb7eb8b5 | 1988 | py_start = count; |
1e611234 PM |
1989 | else |
1990 | { | |
1991 | py_start = 0; | |
6893c19a TT |
1992 | /* The argument to apply_ext_lang_frame_filter is the number |
1993 | of the final frame to print, and frames start at 0. */ | |
1994 | py_end = count - 1; | |
1e611234 | 1995 | } |
c906108c SS |
1996 | } |
1997 | else | |
1e611234 PM |
1998 | { |
1999 | py_end = -1; | |
2000 | count = -1; | |
2001 | } | |
c906108c | 2002 | |
d4c16835 PA |
2003 | frame_filter_flags flags = 0; |
2004 | ||
2005 | if (bt_opts.full) | |
2006 | flags |= PRINT_LOCALS; | |
2007 | if (bt_opts.hide) | |
2008 | flags |= PRINT_HIDE; | |
2009 | ||
2010 | if (!bt_opts.no_filters) | |
c906108c | 2011 | { |
6dddc817 | 2012 | enum ext_lang_frame_args arg_type; |
c906108c | 2013 | |
1cf7e640 | 2014 | flags |= PRINT_LEVEL | PRINT_FRAME_INFO | PRINT_ARGS; |
6893c19a TT |
2015 | if (from_tty) |
2016 | flags |= PRINT_MORE_FRAMES; | |
1e611234 | 2017 | |
d4c16835 | 2018 | if (fp_opts.print_frame_arguments == print_frame_arguments_scalars) |
1e611234 | 2019 | arg_type = CLI_SCALAR_VALUES; |
d4c16835 | 2020 | else if (fp_opts.print_frame_arguments == print_frame_arguments_all) |
1e611234 | 2021 | arg_type = CLI_ALL_VALUES; |
4b5e8d19 PW |
2022 | else if (fp_opts.print_frame_arguments == print_frame_arguments_presence) |
2023 | arg_type = CLI_PRESENCE; | |
2024 | else if (fp_opts.print_frame_arguments == print_frame_arguments_none) | |
1e611234 | 2025 | arg_type = NO_VALUES; |
4b5e8d19 PW |
2026 | else |
2027 | gdb_assert (0); | |
1e611234 | 2028 | |
6dddc817 DE |
2029 | result = apply_ext_lang_frame_filter (get_current_frame (), flags, |
2030 | arg_type, current_uiout, | |
2031 | py_start, py_end); | |
1e611234 | 2032 | } |
6dddc817 | 2033 | |
1e611234 | 2034 | /* Run the inbuilt backtrace if there are no filters registered, or |
d4c16835 PA |
2035 | "-no-filters" has been specified from the command. */ |
2036 | if (bt_opts.no_filters || result == EXT_LANG_BT_NO_FILTERS) | |
1e611234 | 2037 | { |
bd2b40ac | 2038 | frame_info_ptr trailing; |
fb7eb8b5 TT |
2039 | |
2040 | /* The following code must do two things. First, it must set the | |
2041 | variable TRAILING to the frame from which we should start | |
2042 | printing. Second, it must set the variable count to the number | |
2043 | of frames which we should print, or -1 if all of them. */ | |
fb7eb8b5 TT |
2044 | |
2045 | if (count_exp != NULL && count < 0) | |
2046 | { | |
6a70eb7d | 2047 | trailing = trailing_outermost_frame (-count); |
fb7eb8b5 TT |
2048 | count = -1; |
2049 | } | |
6a70eb7d PW |
2050 | else |
2051 | trailing = get_current_frame (); | |
fb7eb8b5 | 2052 | |
59f66be3 | 2053 | for (fi = trailing; fi && count--; fi = get_prev_frame (fi)) |
1e611234 PM |
2054 | { |
2055 | QUIT; | |
2056 | ||
2057 | /* Don't use print_stack_frame; if an error() occurs it probably | |
2058 | means further attempts to backtrace would fail (on the other | |
2059 | hand, perhaps the code does or could be fixed to make sure | |
2060 | the frame->prev field gets set to NULL in that case). */ | |
2061 | ||
d4c16835 | 2062 | print_frame_info (fp_opts, fi, 1, LOCATION, 1, 0); |
1cf7e640 | 2063 | if ((flags & PRINT_LOCALS) != 0) |
73cafdbd | 2064 | print_frame_local_vars (fi, false, NULL, NULL, 1, gdb_stdout); |
55feb689 | 2065 | |
1e611234 PM |
2066 | /* Save the last frame to check for error conditions. */ |
2067 | trailing = fi; | |
2068 | } | |
c906108c | 2069 | |
1e611234 PM |
2070 | /* If we've stopped before the end, mention that. */ |
2071 | if (fi && from_tty) | |
6cb06a8c | 2072 | gdb_printf (_("(More stack frames follow...)\n")); |
55feb689 | 2073 | |
1e611234 PM |
2074 | /* If we've run out of frames, and the reason appears to be an error |
2075 | condition, print it. */ | |
2076 | if (fi == NULL && trailing != NULL) | |
2077 | { | |
2078 | enum unwind_stop_reason reason; | |
55feb689 | 2079 | |
1e611234 PM |
2080 | reason = get_frame_unwind_stop_reason (trailing); |
2081 | if (reason >= UNWIND_FIRST_ERROR) | |
6cb06a8c TT |
2082 | gdb_printf (_("Backtrace stopped: %s\n"), |
2083 | frame_stop_reason_string (trailing)); | |
1e611234 | 2084 | } |
55feb689 | 2085 | } |
c906108c SS |
2086 | } |
2087 | ||
d4c16835 PA |
2088 | /* Create an option_def_group array grouping all the "backtrace" |
2089 | options, with FP_OPTS, BT_CMD_OPT, SET_BT_OPTS as contexts. */ | |
2090 | ||
2091 | static inline std::array<gdb::option::option_def_group, 3> | |
2092 | make_backtrace_options_def_group (frame_print_options *fp_opts, | |
2093 | backtrace_cmd_options *bt_cmd_opts, | |
2094 | set_backtrace_options *set_bt_opts) | |
2095 | { | |
2096 | return {{ | |
2097 | { {frame_print_option_defs}, fp_opts }, | |
2098 | { {set_backtrace_option_defs}, set_bt_opts }, | |
2099 | { {backtrace_command_option_defs}, bt_cmd_opts } | |
2100 | }}; | |
2101 | } | |
2102 | ||
90a1ef87 PA |
2103 | /* Parse the backtrace command's qualifiers. Returns ARG advanced |
2104 | past the qualifiers, if any. BT_CMD_OPTS, if not null, is used to | |
2105 | store the parsed qualifiers. */ | |
2106 | ||
2107 | static const char * | |
2108 | parse_backtrace_qualifiers (const char *arg, | |
2109 | backtrace_cmd_options *bt_cmd_opts = nullptr) | |
2110 | { | |
2111 | while (true) | |
2112 | { | |
2113 | const char *save_arg = arg; | |
2114 | std::string this_arg = extract_arg (&arg); | |
2115 | ||
2116 | if (this_arg.empty ()) | |
2117 | return arg; | |
2118 | ||
c5739418 | 2119 | if (startswith ("no-filters", this_arg)) |
90a1ef87 PA |
2120 | { |
2121 | if (bt_cmd_opts != nullptr) | |
2122 | bt_cmd_opts->no_filters = true; | |
2123 | } | |
c5739418 | 2124 | else if (startswith ("full", this_arg)) |
90a1ef87 PA |
2125 | { |
2126 | if (bt_cmd_opts != nullptr) | |
2127 | bt_cmd_opts->full = true; | |
2128 | } | |
c5739418 | 2129 | else if (startswith ("hide", this_arg)) |
90a1ef87 PA |
2130 | { |
2131 | if (bt_cmd_opts != nullptr) | |
2132 | bt_cmd_opts->hide = true; | |
2133 | } | |
2134 | else | |
2135 | { | |
2136 | /* Not a recognized qualifier, so stop. */ | |
2137 | return save_arg; | |
2138 | } | |
2139 | } | |
2140 | } | |
2141 | ||
c906108c | 2142 | static void |
0b39b52e | 2143 | backtrace_command (const char *arg, int from_tty) |
c906108c | 2144 | { |
d4c16835 PA |
2145 | frame_print_options fp_opts = user_frame_print_options; |
2146 | backtrace_cmd_options bt_cmd_opts; | |
2147 | set_backtrace_options set_bt_opts = user_set_backtrace_options; | |
c906108c | 2148 | |
d4c16835 PA |
2149 | auto grp |
2150 | = make_backtrace_options_def_group (&fp_opts, &bt_cmd_opts, &set_bt_opts); | |
2151 | gdb::option::process_options | |
2152 | (&arg, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
c906108c | 2153 | |
d4c16835 PA |
2154 | /* Parse non-'-'-prefixed qualifiers, for backwards |
2155 | compatibility. */ | |
2156 | if (arg != NULL) | |
2157 | { | |
90a1ef87 | 2158 | arg = parse_backtrace_qualifiers (arg, &bt_cmd_opts); |
ea3b0687 TT |
2159 | if (*arg == '\0') |
2160 | arg = NULL; | |
c906108c SS |
2161 | } |
2162 | ||
d4c16835 PA |
2163 | /* These options are handled quite deep in the unwind machinery, so |
2164 | we get to pass them down by swapping globals. */ | |
2165 | scoped_restore restore_set_backtrace_options | |
2166 | = make_scoped_restore (&user_set_backtrace_options, set_bt_opts); | |
2167 | ||
2168 | backtrace_command_1 (fp_opts, bt_cmd_opts, arg, from_tty); | |
2169 | } | |
2170 | ||
2171 | /* Completer for the "backtrace" command. */ | |
2172 | ||
2173 | static void | |
2174 | backtrace_command_completer (struct cmd_list_element *ignore, | |
2175 | completion_tracker &tracker, | |
2176 | const char *text, const char */*word*/) | |
2177 | { | |
2178 | const auto group | |
2179 | = make_backtrace_options_def_group (nullptr, nullptr, nullptr); | |
2180 | if (gdb::option::complete_options | |
2181 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
2182 | return; | |
2183 | ||
90a1ef87 PA |
2184 | if (*text != '\0') |
2185 | { | |
2186 | const char *p = skip_to_space (text); | |
2187 | if (*p == '\0') | |
2188 | { | |
2189 | static const char *const backtrace_cmd_qualifier_choices[] = { | |
2190 | "full", "no-filters", "hide", nullptr, | |
2191 | }; | |
2192 | complete_on_enum (tracker, backtrace_cmd_qualifier_choices, | |
2193 | text, text); | |
2194 | ||
2195 | if (tracker.have_completions ()) | |
2196 | return; | |
2197 | } | |
2198 | else | |
2199 | { | |
2200 | const char *cmd = parse_backtrace_qualifiers (text); | |
2201 | tracker.advance_custom_word_point_by (cmd - text); | |
2202 | text = cmd; | |
2203 | } | |
2204 | } | |
2205 | ||
d4c16835 PA |
2206 | const char *word = advance_to_expression_complete_word_point (tracker, text); |
2207 | expression_completer (ignore, tracker, text, word); | |
c906108c SS |
2208 | } |
2209 | ||
13835d88 | 2210 | /* Iterate over the local variables of a block B, calling CB. */ |
c906108c | 2211 | |
2c58c0a9 | 2212 | static void |
3977b71f | 2213 | iterate_over_block_locals (const struct block *b, |
13835d88 | 2214 | iterate_over_block_arg_local_vars_cb cb) |
c906108c | 2215 | { |
548a89df | 2216 | for (struct symbol *sym : block_iterator_range (b)) |
c906108c | 2217 | { |
66d7f48f | 2218 | switch (sym->aclass ()) |
c906108c | 2219 | { |
a88ef40d | 2220 | case LOC_CONST: |
c906108c SS |
2221 | case LOC_LOCAL: |
2222 | case LOC_REGISTER: | |
2223 | case LOC_STATIC: | |
4c2df51b | 2224 | case LOC_COMPUTED: |
41bd68f5 | 2225 | case LOC_OPTIMIZED_OUT: |
d9743061 | 2226 | if (sym->is_argument ()) |
2a2d4dc3 | 2227 | break; |
6c9c307c | 2228 | if (sym->domain () == COMMON_BLOCK_DOMAIN) |
4357ac6c | 2229 | break; |
13835d88 | 2230 | cb (sym->print_name (), sym); |
c906108c SS |
2231 | break; |
2232 | ||
2233 | default: | |
2234 | /* Ignore symbols which are not locals. */ | |
2235 | break; | |
2236 | } | |
2237 | } | |
c906108c SS |
2238 | } |
2239 | ||
2c58c0a9 PA |
2240 | /* Iterate over all the local variables in block B, including all its |
2241 | superblocks, stopping when the top-level block is reached. */ | |
2242 | ||
2243 | void | |
3977b71f | 2244 | iterate_over_block_local_vars (const struct block *block, |
13835d88 | 2245 | iterate_over_block_arg_local_vars_cb cb) |
2c58c0a9 PA |
2246 | { |
2247 | while (block) | |
2248 | { | |
13835d88 | 2249 | iterate_over_block_locals (block, cb); |
2c58c0a9 PA |
2250 | /* After handling the function's top-level block, stop. Don't |
2251 | continue to its superblock, the block of per-file | |
2252 | symbols. */ | |
6c00f721 | 2253 | if (block->function ()) |
2c58c0a9 | 2254 | break; |
f135fe72 | 2255 | block = block->superblock (); |
2c58c0a9 PA |
2256 | } |
2257 | } | |
2258 | ||
2259 | /* Data to be passed around in the calls to the locals and args | |
2260 | iterators. */ | |
c906108c | 2261 | |
2c58c0a9 PA |
2262 | struct print_variable_and_value_data |
2263 | { | |
12615cba PW |
2264 | gdb::optional<compiled_regex> preg; |
2265 | gdb::optional<compiled_regex> treg; | |
8f043999 | 2266 | struct frame_id frame_id; |
2c58c0a9 PA |
2267 | int num_tabs; |
2268 | struct ui_file *stream; | |
2269 | int values_printed; | |
13835d88 TT |
2270 | |
2271 | void operator() (const char *print_name, struct symbol *sym); | |
2c58c0a9 PA |
2272 | }; |
2273 | ||
c378eb4e | 2274 | /* The callback for the locals and args iterators. */ |
2c58c0a9 | 2275 | |
13835d88 TT |
2276 | void |
2277 | print_variable_and_value_data::operator() (const char *print_name, | |
2278 | struct symbol *sym) | |
2c58c0a9 | 2279 | { |
bd2b40ac | 2280 | frame_info_ptr frame; |
8f043999 | 2281 | |
13835d88 TT |
2282 | if (preg.has_value () |
2283 | && preg->exec (sym->natural_name (), 0, NULL, 0) != 0) | |
12615cba | 2284 | return; |
13835d88 TT |
2285 | if (treg.has_value () |
2286 | && !treg_matches_sym_type_name (*treg, sym)) | |
12615cba | 2287 | return; |
2c71f639 TV |
2288 | if (language_def (sym->language ())->symbol_printing_suppressed (sym)) |
2289 | return; | |
12615cba | 2290 | |
13835d88 | 2291 | frame = frame_find_by_id (frame_id); |
8f043999 JK |
2292 | if (frame == NULL) |
2293 | { | |
2294 | warning (_("Unable to restore previously selected frame.")); | |
2295 | return; | |
2296 | } | |
2297 | ||
13835d88 | 2298 | print_variable_and_value (print_name, sym, frame, stream, num_tabs); |
8f043999 JK |
2299 | |
2300 | /* print_variable_and_value invalidates FRAME. */ | |
2301 | frame = NULL; | |
2c58c0a9 | 2302 | |
13835d88 | 2303 | values_printed = 1; |
2c58c0a9 | 2304 | } |
c906108c | 2305 | |
12615cba PW |
2306 | /* Prepares the regular expression REG from REGEXP. |
2307 | If REGEXP is NULL, it results in an empty regular expression. */ | |
2308 | ||
2309 | static void | |
2310 | prepare_reg (const char *regexp, gdb::optional<compiled_regex> *reg) | |
2311 | { | |
2312 | if (regexp != NULL) | |
2313 | { | |
2314 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
2315 | ? REG_ICASE : 0); | |
2316 | reg->emplace (regexp, cflags, _("Invalid regexp")); | |
2317 | } | |
2318 | else | |
2319 | reg->reset (); | |
2320 | } | |
2321 | ||
8f043999 JK |
2322 | /* Print all variables from the innermost up to the function block of FRAME. |
2323 | Print them with values to STREAM indented by NUM_TABS. | |
12615cba PW |
2324 | If REGEXP is not NULL, only print local variables whose name |
2325 | matches REGEXP. | |
2326 | If T_REGEXP is not NULL, only print local variables whose type | |
2327 | matches T_REGEXP. | |
2328 | If no local variables have been printed and !QUIET, prints a message | |
2329 | explaining why no local variables could be printed. | |
8f043999 JK |
2330 | |
2331 | This function will invalidate FRAME. */ | |
2332 | ||
c906108c | 2333 | static void |
bd2b40ac | 2334 | print_frame_local_vars (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 (), | |
2480 | b, 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 | |
2493 | explaining why no argument variables could be printed. | |
8f043999 JK |
2494 | |
2495 | This function will invalidate FRAME. */ | |
2496 | ||
2c58c0a9 | 2497 | static void |
bd2b40ac | 2498 | print_frame_arg_vars (frame_info_ptr frame, |
12615cba PW |
2499 | bool quiet, |
2500 | const char *regexp, const char *t_regexp, | |
2501 | struct ui_file *stream) | |
2c58c0a9 PA |
2502 | { |
2503 | struct print_variable_and_value_data cb_data; | |
2504 | struct symbol *func; | |
1d4f5741 | 2505 | CORE_ADDR pc; |
12615cba PW |
2506 | gdb::optional<compiled_regex> preg; |
2507 | gdb::optional<compiled_regex> treg; | |
1d4f5741 PA |
2508 | |
2509 | if (!get_frame_pc_if_available (frame, &pc)) | |
2510 | { | |
12615cba | 2511 | if (!quiet) |
6cb06a8c TT |
2512 | gdb_printf (stream, |
2513 | _("PC unavailable, cannot determine args.\n")); | |
1d4f5741 PA |
2514 | return; |
2515 | } | |
2c58c0a9 PA |
2516 | |
2517 | func = get_frame_function (frame); | |
2518 | if (func == NULL) | |
2519 | { | |
12615cba | 2520 | if (!quiet) |
6cb06a8c | 2521 | gdb_printf (stream, _("No symbol table info available.\n")); |
2c58c0a9 PA |
2522 | return; |
2523 | } | |
2524 | ||
12615cba PW |
2525 | prepare_reg (regexp, &cb_data.preg); |
2526 | prepare_reg (t_regexp, &cb_data.treg); | |
8f043999 | 2527 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 | 2528 | cb_data.num_tabs = 0; |
d392224a | 2529 | cb_data.stream = stream; |
2c58c0a9 PA |
2530 | cb_data.values_printed = 0; |
2531 | ||
4aeddc50 | 2532 | iterate_over_block_arg_vars (func->value_block (), cb_data); |
033a42c2 | 2533 | |
8f043999 JK |
2534 | /* do_print_variable_and_value invalidates FRAME. */ |
2535 | frame = NULL; | |
2536 | ||
12615cba PW |
2537 | if (!cb_data.values_printed && !quiet) |
2538 | { | |
2539 | if (regexp == NULL && t_regexp == NULL) | |
6cb06a8c | 2540 | gdb_printf (stream, _("No arguments.\n")); |
12615cba | 2541 | else |
6cb06a8c | 2542 | gdb_printf (stream, _("No matching arguments.\n")); |
12615cba | 2543 | } |
c906108c SS |
2544 | } |
2545 | ||
b16507e0 AB |
2546 | /* Implement the 'info args' command. */ |
2547 | ||
c906108c | 2548 | void |
12615cba | 2549 | info_args_command (const char *args, int from_tty) |
c906108c | 2550 | { |
b16507e0 | 2551 | info_print_options opts; |
4acfdd20 AB |
2552 | auto grp = make_info_print_options_def_group (&opts); |
2553 | gdb::option::process_options | |
2554 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
2555 | if (args != nullptr && *args == '\0') | |
2556 | args = nullptr; | |
12615cba | 2557 | |
e0700ba4 SM |
2558 | print_frame_arg_vars |
2559 | (get_selected_frame (_("No frame selected.")), | |
2560 | opts.quiet, args, | |
2561 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
2562 | gdb_stdout); | |
c906108c | 2563 | } |
c906108c | 2564 | \f |
c906108c | 2565 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
2566 | Can return zero under various legitimate circumstances. |
2567 | ||
2568 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
2569 | code address within the block returned. We use this to decide | |
2570 | which macros are in scope. */ | |
c906108c | 2571 | |
3977b71f | 2572 | const struct block * |
ae767bfb | 2573 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c | 2574 | { |
d729566a | 2575 | if (!has_stack_frames ()) |
8ea051c5 PA |
2576 | return 0; |
2577 | ||
206415a3 | 2578 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
2579 | } |
2580 | ||
2581 | /* Find a frame a certain number of levels away from FRAME. | |
2582 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
2583 | Positive means go to earlier frames (up); negative, the reverse. | |
2584 | The int that contains the number of levels is counted toward | |
2585 | zero as the frames for those levels are found. | |
2586 | If the top or bottom frame is reached, that frame is returned, | |
2587 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
2588 | how much farther the original request asked to go. */ | |
2589 | ||
bd2b40ac TT |
2590 | frame_info_ptr |
2591 | find_relative_frame (frame_info_ptr frame, int *level_offset_ptr) | |
c906108c | 2592 | { |
033a42c2 MK |
2593 | /* Going up is simple: just call get_prev_frame enough times or |
2594 | until the initial frame is reached. */ | |
c906108c SS |
2595 | while (*level_offset_ptr > 0) |
2596 | { | |
bd2b40ac | 2597 | frame_info_ptr prev = get_prev_frame (frame); |
433759f7 | 2598 | |
033a42c2 | 2599 | if (!prev) |
c906108c SS |
2600 | break; |
2601 | (*level_offset_ptr)--; | |
2602 | frame = prev; | |
2603 | } | |
033a42c2 | 2604 | |
c906108c | 2605 | /* Going down is just as simple. */ |
033a42c2 | 2606 | while (*level_offset_ptr < 0) |
c906108c | 2607 | { |
bd2b40ac | 2608 | frame_info_ptr next = get_next_frame (frame); |
433759f7 | 2609 | |
033a42c2 MK |
2610 | if (!next) |
2611 | break; | |
2612 | (*level_offset_ptr)++; | |
2613 | frame = next; | |
c906108c | 2614 | } |
033a42c2 | 2615 | |
c906108c SS |
2616 | return frame; |
2617 | } | |
2618 | ||
033a42c2 MK |
2619 | /* Select the frame up one or COUNT_EXP stack levels from the |
2620 | previously selected frame, and print it briefly. */ | |
c906108c | 2621 | |
c906108c | 2622 | static void |
d3d3328b | 2623 | up_silently_base (const char *count_exp) |
c906108c | 2624 | { |
bd2b40ac | 2625 | frame_info_ptr frame; |
033a42c2 MK |
2626 | int count = 1; |
2627 | ||
c906108c | 2628 | if (count_exp) |
bb518678 | 2629 | count = parse_and_eval_long (count_exp); |
c5aa993b | 2630 | |
033a42c2 MK |
2631 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2632 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 2633 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 2634 | select_frame (frame); |
c906108c SS |
2635 | } |
2636 | ||
2637 | static void | |
0b39b52e | 2638 | up_silently_command (const char *count_exp, int from_tty) |
c906108c | 2639 | { |
c5aa993b | 2640 | up_silently_base (count_exp); |
c906108c SS |
2641 | } |
2642 | ||
2643 | static void | |
0b39b52e | 2644 | up_command (const char *count_exp, int from_tty) |
c906108c SS |
2645 | { |
2646 | up_silently_base (count_exp); | |
77cd03e2 | 2647 | notify_user_selected_context_changed (USER_SELECTED_FRAME); |
c906108c SS |
2648 | } |
2649 | ||
033a42c2 MK |
2650 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
2651 | selected frame, and print it briefly. */ | |
c906108c | 2652 | |
c906108c | 2653 | static void |
d3d3328b | 2654 | down_silently_base (const char *count_exp) |
c906108c | 2655 | { |
bd2b40ac | 2656 | frame_info_ptr frame; |
033a42c2 | 2657 | int count = -1; |
f89b749f | 2658 | |
c906108c | 2659 | if (count_exp) |
bb518678 | 2660 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 2661 | |
033a42c2 MK |
2662 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2663 | if (count != 0 && count_exp == NULL) | |
c906108c | 2664 | { |
033a42c2 | 2665 | /* We only do this if COUNT_EXP is not specified. That way |
dda83cd7 SM |
2666 | "down" means to really go down (and let me know if that is |
2667 | impossible), but "down 9999" can be used to mean go all the | |
2668 | way down without getting an error. */ | |
c906108c | 2669 | |
033a42c2 | 2670 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
2671 | } |
2672 | ||
0f7d239c | 2673 | select_frame (frame); |
c906108c SS |
2674 | } |
2675 | ||
c906108c | 2676 | static void |
0b39b52e | 2677 | down_silently_command (const char *count_exp, int from_tty) |
c906108c SS |
2678 | { |
2679 | down_silently_base (count_exp); | |
c906108c SS |
2680 | } |
2681 | ||
2682 | static void | |
0b39b52e | 2683 | down_command (const char *count_exp, int from_tty) |
c906108c SS |
2684 | { |
2685 | down_silently_base (count_exp); | |
77cd03e2 | 2686 | notify_user_selected_context_changed (USER_SELECTED_FRAME); |
c906108c | 2687 | } |
033a42c2 | 2688 | |
8b93c638 | 2689 | void |
0b39b52e | 2690 | return_command (const char *retval_exp, int from_tty) |
c906108c | 2691 | { |
901900c4 MGD |
2692 | /* Initialize it just to avoid a GCC false warning. */ |
2693 | enum return_value_convention rv_conv = RETURN_VALUE_STRUCT_CONVENTION; | |
bd2b40ac | 2694 | frame_info_ptr thisframe; |
d80b854b | 2695 | struct gdbarch *gdbarch; |
c906108c | 2696 | struct symbol *thisfun; |
3d6d86c6 | 2697 | struct value *return_value = NULL; |
6a3a010b | 2698 | struct value *function = NULL; |
0b35f123 | 2699 | std::string query_prefix; |
c906108c | 2700 | |
5ed92fa8 UW |
2701 | thisframe = get_selected_frame ("No selected frame."); |
2702 | thisfun = get_frame_function (thisframe); | |
d80b854b | 2703 | gdbarch = get_frame_arch (thisframe); |
c906108c | 2704 | |
edb3359d DJ |
2705 | if (get_frame_type (get_current_frame ()) == INLINE_FRAME) |
2706 | error (_("Can not force return from an inlined function.")); | |
2707 | ||
fc70c2a0 AC |
2708 | /* Compute the return value. If the computation triggers an error, |
2709 | let it bail. If the return type can't be handled, set | |
2710 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
2711 | message. */ | |
c906108c SS |
2712 | if (retval_exp) |
2713 | { | |
4d01a485 | 2714 | expression_up retval_expr = parse_expression (retval_exp); |
c906108c SS |
2715 | struct type *return_type = NULL; |
2716 | ||
fc70c2a0 | 2717 | /* Compute the return value. Should the computation fail, this |
dda83cd7 | 2718 | call throws an error. */ |
43048e46 | 2719 | return_value = retval_expr->evaluate (); |
c906108c | 2720 | |
fc70c2a0 | 2721 | /* Cast return value to the return type of the function. Should |
dda83cd7 | 2722 | the cast fail, this call throws an error. */ |
c906108c | 2723 | if (thisfun != NULL) |
27710edb | 2724 | return_type = thisfun->type ()->target_type (); |
c906108c | 2725 | if (return_type == NULL) |
24b21115 | 2726 | { |
2adab65c TT |
2727 | if (retval_expr->first_opcode () != UNOP_CAST |
2728 | && retval_expr->first_opcode () != UNOP_CAST_TYPE) | |
61ff14c6 JK |
2729 | error (_("Return value type not available for selected " |
2730 | "stack frame.\n" | |
2731 | "Please use an explicit cast of the value to return.")); | |
d0c97917 | 2732 | return_type = return_value->type (); |
61ff14c6 | 2733 | } |
f168693b | 2734 | return_type = check_typedef (return_type); |
c906108c SS |
2735 | return_value = value_cast (return_type, return_value); |
2736 | ||
fc70c2a0 | 2737 | /* Make sure the value is fully evaluated. It may live in the |
dda83cd7 | 2738 | stack frame we're about to pop. */ |
3ee3b270 | 2739 | if (return_value->lazy ()) |
78259c36 | 2740 | return_value->fetch_lazy (); |
c906108c | 2741 | |
6a3a010b | 2742 | if (thisfun != NULL) |
63e43d3a | 2743 | function = read_var_value (thisfun, NULL, thisframe); |
6a3a010b | 2744 | |
bbfdfe1c | 2745 | rv_conv = RETURN_VALUE_REGISTER_CONVENTION; |
78134374 | 2746 | if (return_type->code () == TYPE_CODE_VOID) |
667e784f | 2747 | /* If the return-type is "void", don't try to find the |
dda83cd7 SM |
2748 | return-value's location. However, do still evaluate the |
2749 | return expression so that, even when the expression result | |
2750 | is discarded, side effects such as "return i++" still | |
2751 | occur. */ | |
667e784f | 2752 | return_value = NULL; |
bbfdfe1c | 2753 | else if (thisfun != NULL) |
fc70c2a0 | 2754 | { |
d0c97917 | 2755 | if (is_nocall_function (check_typedef (function->type ()))) |
0b35f123 LS |
2756 | { |
2757 | query_prefix = | |
2758 | string_printf ("Function '%s' does not follow the target " | |
2759 | "calling convention.\n" | |
2760 | "If you continue, setting the return value " | |
2761 | "will probably lead to unpredictable " | |
2762 | "behaviors.\n", | |
2763 | thisfun->print_name ()); | |
2764 | } | |
2765 | ||
bbfdfe1c DM |
2766 | rv_conv = struct_return_convention (gdbarch, function, return_type); |
2767 | if (rv_conv == RETURN_VALUE_STRUCT_CONVENTION | |
2768 | || rv_conv == RETURN_VALUE_ABI_RETURNS_ADDRESS) | |
2769 | { | |
2770 | query_prefix = "The location at which to store the " | |
2771 | "function's return value is unknown.\n" | |
2772 | "If you continue, the return value " | |
2773 | "that you specified will be ignored.\n"; | |
2774 | return_value = NULL; | |
2775 | } | |
fc70c2a0 | 2776 | } |
c906108c SS |
2777 | } |
2778 | ||
fc70c2a0 AC |
2779 | /* Does an interactive user really want to do this? Include |
2780 | information, such as how well GDB can handle the return value, in | |
2781 | the query message. */ | |
2782 | if (from_tty) | |
2783 | { | |
2784 | int confirmed; | |
433759f7 | 2785 | |
fc70c2a0 | 2786 | if (thisfun == NULL) |
e2e0b3e5 | 2787 | confirmed = query (_("%sMake selected stack frame return now? "), |
0b35f123 | 2788 | query_prefix.c_str ()); |
fc70c2a0 | 2789 | else |
743649fd | 2790 | { |
5f9c5a63 | 2791 | if (TYPE_NO_RETURN (thisfun->type ())) |
d35b90fb | 2792 | warning (_("Function does not return normally to caller.")); |
0b35f123 LS |
2793 | confirmed = query (_("%sMake %s return now? "), |
2794 | query_prefix.c_str (), | |
987012b8 | 2795 | thisfun->print_name ()); |
743649fd | 2796 | } |
fc70c2a0 | 2797 | if (!confirmed) |
8a3fe4f8 | 2798 | error (_("Not confirmed")); |
fc70c2a0 | 2799 | } |
c906108c | 2800 | |
a45ae3ed UW |
2801 | /* Discard the selected frame and all frames inner-to it. */ |
2802 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 2803 | |
a1f5b845 | 2804 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
2805 | if (return_value != NULL) |
2806 | { | |
d0c97917 | 2807 | struct type *return_type = return_value->type (); |
b926417a | 2808 | struct gdbarch *cache_arch = get_current_regcache ()->arch (); |
42e2132c | 2809 | |
bbfdfe1c DM |
2810 | gdb_assert (rv_conv != RETURN_VALUE_STRUCT_CONVENTION |
2811 | && rv_conv != RETURN_VALUE_ABI_RETURNS_ADDRESS); | |
4e1d2f58 TT |
2812 | gdbarch_return_value_as_value |
2813 | (cache_arch, function, return_type, | |
2814 | get_current_regcache (), NULL /*read*/, | |
efaf1ae0 | 2815 | return_value->contents ().data () /*write*/); |
fc70c2a0 | 2816 | } |
1a2aab69 | 2817 | |
fc70c2a0 AC |
2818 | /* If we are at the end of a call dummy now, pop the dummy frame |
2819 | too. */ | |
e8bcf01f AC |
2820 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
2821 | frame_pop (get_current_frame ()); | |
1a2aab69 | 2822 | |
edbbff4a | 2823 | select_frame (get_current_frame ()); |
c906108c | 2824 | /* If interactive, print the frame that is now current. */ |
c906108c | 2825 | if (from_tty) |
edbbff4a | 2826 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
c906108c SS |
2827 | } |
2828 | ||
39f0c204 AB |
2829 | /* Find the most inner frame in the current stack for a function called |
2830 | FUNCTION_NAME. If no matching frame is found return NULL. */ | |
c906108c | 2831 | |
bd2b40ac | 2832 | static frame_info_ptr |
39f0c204 | 2833 | find_frame_for_function (const char *function_name) |
c906108c | 2834 | { |
39f0c204 AB |
2835 | /* Used to hold the lower and upper addresses for each of the |
2836 | SYMTAB_AND_LINEs found for functions matching FUNCTION_NAME. */ | |
2837 | struct function_bounds | |
2838 | { | |
2839 | CORE_ADDR low, high; | |
2840 | }; | |
bd2b40ac | 2841 | frame_info_ptr frame; |
39f0c204 | 2842 | bool found = false; |
c906108c | 2843 | int level = 1; |
c906108c | 2844 | |
39f0c204 | 2845 | gdb_assert (function_name != NULL); |
c906108c | 2846 | |
edbbff4a | 2847 | frame = get_current_frame (); |
6c5b2ebe | 2848 | std::vector<symtab_and_line> sals |
39f0c204 AB |
2849 | = decode_line_with_current_source (function_name, |
2850 | DECODE_LINE_FUNFIRSTLINE); | |
0b868b60 | 2851 | gdb::def_vector<function_bounds> func_bounds (sals.size ()); |
39f0c204 | 2852 | for (size_t i = 0; i < sals.size (); i++) |
c906108c | 2853 | { |
6c5b2ebe | 2854 | if (sals[i].pspace != current_program_space) |
f8eba3c6 | 2855 | func_bounds[i].low = func_bounds[i].high = 0; |
6c5b2ebe PA |
2856 | else if (sals[i].pc == 0 |
2857 | || find_pc_partial_function (sals[i].pc, NULL, | |
f8eba3c6 TT |
2858 | &func_bounds[i].low, |
2859 | &func_bounds[i].high) == 0) | |
39f0c204 | 2860 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
2861 | } |
2862 | ||
2863 | do | |
2864 | { | |
6c5b2ebe | 2865 | for (size_t i = 0; (i < sals.size () && !found); i++) |
033a42c2 MK |
2866 | found = (get_frame_pc (frame) >= func_bounds[i].low |
2867 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
2868 | if (!found) |
2869 | { | |
2870 | level = 1; | |
033a42c2 | 2871 | frame = find_relative_frame (frame, &level); |
c906108c SS |
2872 | } |
2873 | } | |
2874 | while (!found && level == 0); | |
2875 | ||
c906108c | 2876 | if (!found) |
39f0c204 AB |
2877 | frame = NULL; |
2878 | ||
2879 | return frame; | |
2880 | } | |
2881 | ||
5d707134 PA |
2882 | /* The qcs command line flags for the "frame apply" commands. Keep |
2883 | this in sync with the "thread apply" commands. */ | |
2884 | ||
2885 | using qcs_flag_option_def | |
2886 | = gdb::option::flag_option_def<qcs_flags>; | |
2887 | ||
2888 | static const gdb::option::option_def fr_qcs_flags_option_defs[] = { | |
2889 | qcs_flag_option_def { | |
2890 | "q", [] (qcs_flags *opt) { return &opt->quiet; }, | |
2891 | N_("Disables printing the frame location information."), | |
2892 | }, | |
2893 | ||
2894 | qcs_flag_option_def { | |
2895 | "c", [] (qcs_flags *opt) { return &opt->cont; }, | |
2896 | N_("Print any error raised by COMMAND and continue."), | |
2897 | }, | |
2898 | ||
2899 | qcs_flag_option_def { | |
2900 | "s", [] (qcs_flags *opt) { return &opt->silent; }, | |
2901 | N_("Silently ignore any errors or empty output produced by COMMAND."), | |
2902 | }, | |
2903 | }; | |
2904 | ||
2905 | /* Create an option_def_group array for all the "frame apply" options, | |
2906 | with FLAGS and SET_BT_OPTS as context. */ | |
2907 | ||
2908 | static inline std::array<gdb::option::option_def_group, 2> | |
2909 | make_frame_apply_options_def_group (qcs_flags *flags, | |
2910 | set_backtrace_options *set_bt_opts) | |
2911 | { | |
2912 | return {{ | |
2913 | { {fr_qcs_flags_option_defs}, flags }, | |
2914 | { {set_backtrace_option_defs}, set_bt_opts }, | |
2915 | }}; | |
2916 | } | |
2917 | ||
6a70eb7d PW |
2918 | /* Apply a GDB command to all stack frames, or a set of identified frames, |
2919 | or innermost COUNT frames. | |
2920 | With a negative COUNT, apply command on outermost -COUNT frames. | |
2921 | ||
2922 | frame apply 3 info frame Apply 'info frame' to frames 0, 1, 2 | |
2923 | frame apply -3 info frame Apply 'info frame' to outermost 3 frames. | |
2924 | frame apply all x/i $pc Apply 'x/i $pc' cmd to all frames. | |
2925 | frame apply all -s p local_var_no_idea_in_which_frame | |
dda83cd7 SM |
2926 | If a frame has a local variable called |
2927 | local_var_no_idea_in_which_frame, print frame | |
2928 | and value of local_var_no_idea_in_which_frame. | |
6a70eb7d | 2929 | frame apply all -s -q p local_var_no_idea_in_which_frame |
dda83cd7 | 2930 | Same as before, but only print the variable value. |
6a70eb7d | 2931 | frame apply level 2-5 0 4-7 -s p i = i + 1 |
dda83cd7 SM |
2932 | Adds 1 to the variable i in the specified frames. |
2933 | Note that i will be incremented twice in | |
2934 | frames 4 and 5. */ | |
6a70eb7d PW |
2935 | |
2936 | /* Apply a GDB command to COUNT stack frames, starting at TRAILING. | |
2937 | CMD starts with 0 or more qcs flags followed by the GDB command to apply. | |
2938 | COUNT -1 means all frames starting at TRAILING. WHICH_COMMAND is used | |
2939 | for error messages. */ | |
2940 | ||
2941 | static void | |
2942 | frame_apply_command_count (const char *which_command, | |
2943 | const char *cmd, int from_tty, | |
bd2b40ac | 2944 | frame_info_ptr trailing, int count) |
6a70eb7d PW |
2945 | { |
2946 | qcs_flags flags; | |
5d707134 | 2947 | set_backtrace_options set_bt_opts = user_set_backtrace_options; |
6a70eb7d | 2948 | |
5d707134 PA |
2949 | auto group = make_frame_apply_options_def_group (&flags, &set_bt_opts); |
2950 | gdb::option::process_options | |
2951 | (&cmd, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group); | |
2952 | ||
2953 | validate_flags_qcs (which_command, &flags); | |
6a70eb7d PW |
2954 | |
2955 | if (cmd == NULL || *cmd == '\0') | |
2956 | error (_("Please specify a command to apply on the selected frames")); | |
2957 | ||
2958 | /* The below will restore the current inferior/thread/frame. | |
2959 | Usually, only the frame is effectively to be restored. | |
2960 | But in case CMD switches of inferior/thread, better restore | |
2961 | these also. */ | |
2962 | scoped_restore_current_thread restore_thread; | |
2963 | ||
5d707134 PA |
2964 | /* These options are handled quite deep in the unwind machinery, so |
2965 | we get to pass them down by swapping globals. */ | |
2966 | scoped_restore restore_set_backtrace_options | |
2967 | = make_scoped_restore (&user_set_backtrace_options, set_bt_opts); | |
2968 | ||
bd2b40ac | 2969 | for (frame_info_ptr fi = trailing; fi && count--; fi = get_prev_frame (fi)) |
6a70eb7d PW |
2970 | { |
2971 | QUIT; | |
2972 | ||
2973 | select_frame (fi); | |
a70b8144 | 2974 | try |
6a70eb7d PW |
2975 | { |
2976 | std::string cmd_result; | |
2977 | { | |
2978 | /* In case CMD switches of inferior/thread/frame, the below | |
2979 | restores the inferior/thread/frame. FI can then be | |
2980 | set to the selected frame. */ | |
2981 | scoped_restore_current_thread restore_fi_current_frame; | |
2982 | ||
84a6adfd TV |
2983 | execute_command_to_string |
2984 | (cmd_result, cmd, from_tty, gdb_stdout->term_out ()); | |
6a70eb7d PW |
2985 | } |
2986 | fi = get_selected_frame (_("frame apply " | |
2987 | "unable to get selected frame.")); | |
2988 | if (!flags.silent || cmd_result.length () > 0) | |
2989 | { | |
2990 | if (!flags.quiet) | |
2991 | print_stack_frame (fi, 1, LOCATION, 0); | |
6cb06a8c | 2992 | gdb_printf ("%s", cmd_result.c_str ()); |
6a70eb7d PW |
2993 | } |
2994 | } | |
230d2906 | 2995 | catch (const gdb_exception_error &ex) |
6a70eb7d PW |
2996 | { |
2997 | fi = get_selected_frame (_("frame apply " | |
2998 | "unable to get selected frame.")); | |
2999 | if (!flags.silent) | |
3000 | { | |
3001 | if (!flags.quiet) | |
3002 | print_stack_frame (fi, 1, LOCATION, 0); | |
3003 | if (flags.cont) | |
6cb06a8c | 3004 | gdb_printf ("%s\n", ex.what ()); |
6a70eb7d | 3005 | else |
eedc3f4f | 3006 | throw; |
6a70eb7d PW |
3007 | } |
3008 | } | |
6a70eb7d PW |
3009 | } |
3010 | } | |
3011 | ||
5d707134 PA |
3012 | /* Completer for the "frame apply ..." commands. */ |
3013 | ||
3014 | static void | |
3015 | frame_apply_completer (completion_tracker &tracker, const char *text) | |
3016 | { | |
3017 | const auto group = make_frame_apply_options_def_group (nullptr, nullptr); | |
3018 | if (gdb::option::complete_options | |
3019 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
3020 | return; | |
3021 | ||
3022 | complete_nested_command_line (tracker, text); | |
3023 | } | |
3024 | ||
3025 | /* Completer for the "frame apply" commands. */ | |
3026 | ||
3027 | static void | |
3028 | frame_apply_level_cmd_completer (struct cmd_list_element *ignore, | |
3029 | completion_tracker &tracker, | |
3030 | const char *text, const char */*word*/) | |
3031 | { | |
3032 | /* Do this explicitly because there's an early return below. */ | |
3033 | tracker.set_use_custom_word_point (true); | |
3034 | ||
3035 | number_or_range_parser levels (text); | |
3036 | ||
3037 | /* Skip the LEVEL list to find the options and command args. */ | |
3038 | try | |
3039 | { | |
3040 | while (!levels.finished ()) | |
3041 | { | |
3042 | /* Call for effect. */ | |
3043 | levels.get_number (); | |
3044 | ||
3045 | if (levels.in_range ()) | |
3046 | levels.skip_range (); | |
3047 | } | |
3048 | } | |
3049 | catch (const gdb_exception_error &ex) | |
3050 | { | |
3051 | /* get_number throws if it parses a negative number, for | |
3052 | example. But a seemingly negative number may be the start of | |
3053 | an option instead. */ | |
3054 | } | |
3055 | ||
3056 | const char *cmd = levels.cur_tok (); | |
3057 | ||
3058 | if (cmd == text) | |
3059 | { | |
3060 | /* No level list yet. */ | |
3061 | return; | |
3062 | } | |
3063 | ||
3064 | /* Check if we're past a valid LEVEL already. */ | |
3065 | if (levels.finished () | |
3066 | && cmd > text && !isspace (cmd[-1])) | |
3067 | return; | |
3068 | ||
3069 | /* We're past LEVELs, advance word point. */ | |
3070 | tracker.advance_custom_word_point_by (cmd - text); | |
3071 | text = cmd; | |
3072 | ||
3073 | frame_apply_completer (tracker, text); | |
3074 | } | |
3075 | ||
3076 | /* Completer for the "frame apply all" command. */ | |
3077 | ||
3078 | void | |
3079 | frame_apply_all_cmd_completer (struct cmd_list_element *ignore, | |
3080 | completion_tracker &tracker, | |
3081 | const char *text, const char */*word*/) | |
3082 | { | |
3083 | frame_apply_completer (tracker, text); | |
3084 | } | |
3085 | ||
3086 | /* Completer for the "frame apply COUNT" command. */ | |
3087 | ||
3088 | static void | |
3089 | frame_apply_cmd_completer (struct cmd_list_element *ignore, | |
3090 | completion_tracker &tracker, | |
3091 | const char *text, const char */*word*/) | |
3092 | { | |
3093 | const char *cmd = text; | |
3094 | ||
3095 | int count = get_number_trailer (&cmd, 0); | |
3096 | if (count == 0) | |
3097 | return; | |
3098 | ||
3099 | /* Check if we're past a valid COUNT already. */ | |
3100 | if (cmd > text && !isspace (cmd[-1])) | |
3101 | return; | |
3102 | ||
3103 | /* We're past COUNT, advance word point. */ | |
3104 | tracker.advance_custom_word_point_by (cmd - text); | |
3105 | text = cmd; | |
3106 | ||
3107 | frame_apply_completer (tracker, text); | |
3108 | } | |
3109 | ||
6a70eb7d PW |
3110 | /* Implementation of the "frame apply level" command. */ |
3111 | ||
3112 | static void | |
3113 | frame_apply_level_command (const char *cmd, int from_tty) | |
3114 | { | |
841de120 | 3115 | if (!target_has_stack ()) |
6a70eb7d PW |
3116 | error (_("No stack.")); |
3117 | ||
3118 | bool level_found = false; | |
3119 | const char *levels_str = cmd; | |
3120 | number_or_range_parser levels (levels_str); | |
3121 | ||
3122 | /* Skip the LEVEL list to find the flags and command args. */ | |
3123 | while (!levels.finished ()) | |
3124 | { | |
8d49165d TT |
3125 | /* Call for effect. */ |
3126 | levels.get_number (); | |
6a70eb7d PW |
3127 | |
3128 | level_found = true; | |
3129 | if (levels.in_range ()) | |
3130 | levels.skip_range (); | |
3131 | } | |
3132 | ||
3133 | if (!level_found) | |
3134 | error (_("Missing or invalid LEVEL... argument")); | |
3135 | ||
3136 | cmd = levels.cur_tok (); | |
3137 | ||
3138 | /* Redo the LEVELS parsing, but applying COMMAND. */ | |
3139 | levels.init (levels_str); | |
3140 | while (!levels.finished ()) | |
3141 | { | |
3142 | const int level_beg = levels.get_number (); | |
3143 | int n_frames; | |
3144 | ||
3145 | if (levels.in_range ()) | |
3146 | { | |
3147 | n_frames = levels.end_value () - level_beg + 1; | |
3148 | levels.skip_range (); | |
3149 | } | |
3150 | else | |
3151 | n_frames = 1; | |
3152 | ||
3153 | frame_apply_command_count ("frame apply level", cmd, from_tty, | |
3154 | leading_innermost_frame (level_beg), n_frames); | |
3155 | } | |
3156 | } | |
3157 | ||
3158 | /* Implementation of the "frame apply all" command. */ | |
3159 | ||
3160 | static void | |
3161 | frame_apply_all_command (const char *cmd, int from_tty) | |
3162 | { | |
841de120 | 3163 | if (!target_has_stack ()) |
6a70eb7d PW |
3164 | error (_("No stack.")); |
3165 | ||
3166 | frame_apply_command_count ("frame apply all", cmd, from_tty, | |
3167 | get_current_frame (), INT_MAX); | |
3168 | } | |
3169 | ||
3170 | /* Implementation of the "frame apply" command. */ | |
3171 | ||
3172 | static void | |
3173 | frame_apply_command (const char* cmd, int from_tty) | |
3174 | { | |
3175 | int count; | |
bd2b40ac | 3176 | frame_info_ptr trailing; |
6a70eb7d | 3177 | |
841de120 | 3178 | if (!target_has_stack ()) |
6a70eb7d PW |
3179 | error (_("No stack.")); |
3180 | ||
3181 | if (cmd == NULL) | |
3182 | error (_("Missing COUNT argument.")); | |
3183 | count = get_number_trailer (&cmd, 0); | |
3184 | if (count == 0) | |
3185 | error (_("Invalid COUNT argument.")); | |
3186 | ||
3187 | if (count < 0) | |
3188 | { | |
3189 | trailing = trailing_outermost_frame (-count); | |
3190 | count = -1; | |
3191 | } | |
3192 | else | |
3193 | trailing = get_current_frame (); | |
3194 | ||
3195 | frame_apply_command_count ("frame apply", cmd, from_tty, | |
3196 | trailing, count); | |
3197 | } | |
3198 | ||
3199 | /* Implementation of the "faas" command. */ | |
3200 | ||
3201 | static void | |
3202 | faas_command (const char *cmd, int from_tty) | |
3203 | { | |
e0fad1ea PW |
3204 | if (cmd == NULL || *cmd == '\0') |
3205 | error (_("Please specify a command to apply on all frames")); | |
6a70eb7d PW |
3206 | std::string expanded = std::string ("frame apply all -s ") + cmd; |
3207 | execute_command (expanded.c_str (), from_tty); | |
3208 | } | |
3209 | ||
3210 | ||
f67ffa6a AB |
3211 | /* Find inner-mode frame with frame address ADDRESS. Return NULL if no |
3212 | matching frame can be found. */ | |
3213 | ||
bd2b40ac | 3214 | static frame_info_ptr |
f67ffa6a AB |
3215 | find_frame_for_address (CORE_ADDR address) |
3216 | { | |
3217 | struct frame_id id; | |
bd2b40ac | 3218 | frame_info_ptr fid; |
f67ffa6a AB |
3219 | |
3220 | id = frame_id_build_wild (address); | |
3221 | ||
3222 | /* If (s)he specifies the frame with an address, he deserves | |
3223 | what (s)he gets. Still, give the highest one that matches. | |
3224 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
3225 | know). */ | |
3226 | for (fid = get_current_frame (); | |
3227 | fid != NULL; | |
3228 | fid = get_prev_frame (fid)) | |
3229 | { | |
a0cbd650 | 3230 | if (id == get_frame_id (fid)) |
f67ffa6a | 3231 | { |
bd2b40ac | 3232 | frame_info_ptr prev_frame; |
f67ffa6a AB |
3233 | |
3234 | while (1) | |
3235 | { | |
3236 | prev_frame = get_prev_frame (fid); | |
3237 | if (!prev_frame | |
a0cbd650 | 3238 | || id != get_frame_id (prev_frame)) |
f67ffa6a AB |
3239 | break; |
3240 | fid = prev_frame; | |
3241 | } | |
3242 | return fid; | |
3243 | } | |
3244 | } | |
3245 | return NULL; | |
3246 | } | |
3247 | ||
3248 | \f | |
3249 | ||
3250 | /* Commands with a prefix of `frame apply'. */ | |
3251 | static struct cmd_list_element *frame_apply_cmd_list = NULL; | |
3252 | ||
6a70eb7d | 3253 | /* Commands with a prefix of `frame'. */ |
f67ffa6a AB |
3254 | static struct cmd_list_element *frame_cmd_list = NULL; |
3255 | ||
3256 | /* Commands with a prefix of `select frame'. */ | |
3257 | static struct cmd_list_element *select_frame_cmd_list = NULL; | |
3258 | ||
3259 | /* Commands with a prefix of `info frame'. */ | |
3260 | static struct cmd_list_element *info_frame_cmd_list = NULL; | |
6a70eb7d | 3261 | |
6c265988 | 3262 | void _initialize_stack (); |
c906108c | 3263 | void |
6c265988 | 3264 | _initialize_stack () |
c906108c | 3265 | { |
f67ffa6a | 3266 | struct cmd_list_element *cmd; |
6a70eb7d | 3267 | |
1bedd215 AC |
3268 | add_com ("return", class_stack, return_command, _("\ |
3269 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
3270 | Control remains in the debugger, but when you continue\n\ |
3271 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
3272 | If an argument is given, it is an expression for the value to return.")); |
3273 | ||
3274 | add_com ("up", class_stack, up_command, _("\ | |
3275 | Select and print stack frame that called this one.\n\ | |
3276 | An argument says how many frames up to go.")); | |
3277 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
3278 | Same as the `up' command, but does not print anything.\n\ | |
3279 | This is useful in command scripts.")); | |
3280 | ||
3947f654 SM |
3281 | cmd_list_element *down_cmd |
3282 | = add_com ("down", class_stack, down_command, _("\ | |
1bedd215 AC |
3283 | Select and print stack frame called by this one.\n\ |
3284 | An argument says how many frames down to go.")); | |
3947f654 SM |
3285 | add_com_alias ("do", down_cmd, class_stack, 1); |
3286 | add_com_alias ("dow", down_cmd, class_stack, 1); | |
1bedd215 AC |
3287 | add_com ("down-silently", class_support, down_silently_command, _("\ |
3288 | Same as the `down' command, but does not print anything.\n\ | |
3289 | This is useful in command scripts.")); | |
c906108c | 3290 | |
3947f654 SM |
3291 | cmd_list_element *frame_cmd_el |
3292 | = add_prefix_cmd ("frame", class_stack, | |
3293 | &frame_cmd.base_command, _("\ | |
f67ffa6a AB |
3294 | Select and print a stack frame.\n\ |
3295 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ | |
3296 | A single numerical argument specifies the frame to select."), | |
3947f654 SM |
3297 | &frame_cmd_list, 1, &cmdlist); |
3298 | add_com_alias ("f", frame_cmd_el, class_stack, 1); | |
c906108c | 3299 | |
5d707134 | 3300 | #define FRAME_APPLY_OPTION_HELP "\ |
6a70eb7d | 3301 | Prints the frame location information followed by COMMAND output.\n\ |
5d707134 PA |
3302 | \n\ |
3303 | By default, an error raised during the execution of COMMAND\n\ | |
3304 | aborts \"frame apply\".\n\ | |
3305 | \n\ | |
3306 | Options:\n\ | |
3307 | %OPTIONS%" | |
3308 | ||
3309 | const auto frame_apply_opts | |
3310 | = make_frame_apply_options_def_group (nullptr, nullptr); | |
3311 | ||
8abfcabc | 3312 | static std::string frame_apply_cmd_help = gdb::option::build_help (_("\ |
5d707134 PA |
3313 | Apply a command to a number of frames.\n\ |
3314 | Usage: frame apply COUNT [OPTION]... COMMAND\n\ | |
6a70eb7d | 3315 | With a negative COUNT argument, applies the command on outermost -COUNT frames.\n" |
5d707134 PA |
3316 | FRAME_APPLY_OPTION_HELP), |
3317 | frame_apply_opts); | |
6a70eb7d | 3318 | |
5d707134 PA |
3319 | cmd = add_prefix_cmd ("apply", class_stack, frame_apply_command, |
3320 | frame_apply_cmd_help.c_str (), | |
2f822da5 | 3321 | &frame_apply_cmd_list, 1, |
5d707134 PA |
3322 | &frame_cmd_list); |
3323 | set_cmd_completer_handle_brkchars (cmd, frame_apply_cmd_completer); | |
3324 | ||
8abfcabc | 3325 | static std::string frame_apply_all_cmd_help = gdb::option::build_help (_("\ |
6a70eb7d PW |
3326 | Apply a command to all frames.\n\ |
3327 | \n\ | |
5d707134 PA |
3328 | Usage: frame apply all [OPTION]... COMMAND\n" |
3329 | FRAME_APPLY_OPTION_HELP), | |
3330 | frame_apply_opts); | |
6a70eb7d | 3331 | |
5d707134 PA |
3332 | cmd = add_cmd ("all", class_stack, frame_apply_all_command, |
3333 | frame_apply_all_cmd_help.c_str (), | |
3334 | &frame_apply_cmd_list); | |
3335 | set_cmd_completer_handle_brkchars (cmd, frame_apply_all_cmd_completer); | |
3336 | ||
8abfcabc | 3337 | static std::string frame_apply_level_cmd_help = gdb::option::build_help (_("\ |
6a70eb7d PW |
3338 | Apply a command to a list of frames.\n\ |
3339 | \n\ | |
5d707134 PA |
3340 | Usage: frame apply level LEVEL... [OPTION]... COMMAND\n\ |
3341 | LEVEL is a space-separated list of levels of frames to apply COMMAND on.\n" | |
3342 | FRAME_APPLY_OPTION_HELP), | |
3343 | frame_apply_opts); | |
3344 | ||
3345 | cmd = add_cmd ("level", class_stack, frame_apply_level_command, | |
3346 | frame_apply_level_cmd_help.c_str (), | |
f67ffa6a | 3347 | &frame_apply_cmd_list); |
5d707134 | 3348 | set_cmd_completer_handle_brkchars (cmd, frame_apply_level_cmd_completer); |
6a70eb7d | 3349 | |
5d707134 | 3350 | cmd = add_com ("faas", class_stack, faas_command, _("\ |
6a70eb7d | 3351 | Apply a command to all frames (ignoring errors and empty output).\n\ |
5d707134 PA |
3352 | Usage: faas [OPTION]... COMMAND\n\ |
3353 | shortcut for 'frame apply all -s [OPTION]... COMMAND'\n\ | |
3354 | See \"help frame apply all\" for available options.")); | |
3355 | set_cmd_completer_handle_brkchars (cmd, frame_apply_all_cmd_completer); | |
f67ffa6a | 3356 | |
f67ffa6a AB |
3357 | add_cmd ("address", class_stack, &frame_cmd.address, |
3358 | _("\ | |
590042fc | 3359 | Select and print a stack frame by stack address.\n\ |
f67ffa6a AB |
3360 | \n\ |
3361 | Usage: frame address STACK-ADDRESS"), | |
3362 | &frame_cmd_list); | |
3363 | ||
3364 | add_cmd ("view", class_stack, &frame_cmd.view, | |
3365 | _("\ | |
3366 | View a stack frame that might be outside the current backtrace.\n\ | |
3367 | \n\ | |
3368 | Usage: frame view STACK-ADDRESS\n\ | |
3369 | frame view STACK-ADDRESS PC-ADDRESS"), | |
3370 | &frame_cmd_list); | |
3371 | ||
3372 | cmd = add_cmd ("function", class_stack, &frame_cmd.function, | |
3373 | _("\ | |
3374 | Select and print a stack frame by function name.\n\ | |
3375 | \n\ | |
3376 | Usage: frame function NAME\n\ | |
3377 | \n\ | |
3378 | The innermost frame that visited function NAME is selected."), | |
3379 | &frame_cmd_list); | |
3380 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3381 | ||
3382 | ||
3383 | add_cmd ("level", class_stack, &frame_cmd.level, | |
3384 | _("\ | |
3385 | Select and print a stack frame by level.\n\ | |
3386 | \n\ | |
3387 | Usage: frame level LEVEL"), | |
3388 | &frame_cmd_list); | |
3389 | ||
3390 | cmd = add_prefix_cmd_suppress_notification ("select-frame", class_stack, | |
3391 | &select_frame_cmd.base_command, _("\ | |
1bedd215 | 3392 | Select a stack frame without printing anything.\n\ |
f67ffa6a | 3393 | A single numerical argument specifies the frame to select."), |
2f822da5 | 3394 | &select_frame_cmd_list, 1, &cmdlist, |
f67ffa6a AB |
3395 | &cli_suppress_notification.user_selected_context); |
3396 | ||
3397 | add_cmd_suppress_notification ("address", class_stack, | |
3398 | &select_frame_cmd.address, _("\ | |
3399 | Select a stack frame by stack address.\n\ | |
3400 | \n\ | |
3401 | Usage: select-frame address STACK-ADDRESS"), | |
3402 | &select_frame_cmd_list, | |
3403 | &cli_suppress_notification.user_selected_context); | |
3404 | ||
3405 | ||
3406 | add_cmd_suppress_notification ("view", class_stack, | |
3407 | &select_frame_cmd.view, _("\ | |
3408 | Select a stack frame that might be outside the current backtrace.\n\ | |
3409 | \n\ | |
3410 | Usage: select-frame view STACK-ADDRESS\n\ | |
3411 | select-frame view STACK-ADDRESS PC-ADDRESS"), | |
3412 | &select_frame_cmd_list, | |
4034d0ff | 3413 | &cli_suppress_notification.user_selected_context); |
c906108c | 3414 | |
f67ffa6a AB |
3415 | cmd = add_cmd_suppress_notification ("function", class_stack, |
3416 | &select_frame_cmd.function, _("\ | |
3417 | Select a stack frame by function name.\n\ | |
3418 | \n\ | |
3419 | Usage: select-frame function NAME"), | |
3420 | &select_frame_cmd_list, | |
3421 | &cli_suppress_notification.user_selected_context); | |
3422 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3423 | ||
3424 | add_cmd_suppress_notification ("level", class_stack, | |
3425 | &select_frame_cmd.level, _("\ | |
3426 | Select a stack frame by level.\n\ | |
3427 | \n\ | |
3428 | Usage: select-frame level LEVEL"), | |
3429 | &select_frame_cmd_list, | |
3430 | &cli_suppress_notification.user_selected_context); | |
3431 | ||
d4c16835 PA |
3432 | const auto backtrace_opts |
3433 | = make_backtrace_options_def_group (nullptr, nullptr, nullptr); | |
3434 | ||
3435 | static std::string backtrace_help | |
8abfcabc | 3436 | = gdb::option::build_help (_("\ |
1bedd215 | 3437 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ |
d4c16835 PA |
3438 | Usage: backtrace [OPTION]... [QUALIFIER]... [COUNT | -COUNT]\n\ |
3439 | \n\ | |
3440 | Options:\n\ | |
590042fc PW |
3441 | %OPTIONS%\n\ |
3442 | \n\ | |
d4c16835 PA |
3443 | For backward compatibility, the following qualifiers are supported:\n\ |
3444 | \n\ | |
3445 | full - same as -full option.\n\ | |
3446 | no-filters - same as -no-filters option.\n\ | |
3447 | hide - same as -hide.\n\ | |
3448 | \n\ | |
3449 | With a negative COUNT, print outermost -COUNT frames."), | |
3450 | backtrace_opts); | |
3451 | ||
3947f654 SM |
3452 | cmd_list_element *backtrace_cmd |
3453 | = add_com ("backtrace", class_stack, backtrace_command, | |
3454 | backtrace_help.c_str ()); | |
3455 | set_cmd_completer_handle_brkchars (backtrace_cmd, backtrace_command_completer); | |
d4c16835 | 3456 | |
3947f654 | 3457 | add_com_alias ("bt", backtrace_cmd, class_stack, 0); |
c906108c | 3458 | |
3947f654 | 3459 | add_com_alias ("where", backtrace_cmd, class_stack, 0); |
e0f25bd9 SM |
3460 | cmd_list_element *info_stack_cmd |
3461 | = add_info ("stack", backtrace_command, | |
3462 | _("Backtrace of the stack, or innermost COUNT frames.")); | |
3463 | add_info_alias ("s", info_stack_cmd, 1); | |
3464 | ||
3465 | cmd_list_element *info_frame_cmd_el | |
3466 | = add_prefix_cmd ("frame", class_info, &info_frame_cmd.base_command, | |
3467 | _("All about the selected stack frame.\n\ | |
f67ffa6a AB |
3468 | With no arguments, displays information about the currently selected stack\n\ |
3469 | frame. Alternatively a frame specification may be provided (See \"frame\")\n\ | |
3470 | the information is then printed about the specified frame."), | |
e0f25bd9 SM |
3471 | &info_frame_cmd_list, 1, &infolist); |
3472 | add_info_alias ("f", info_frame_cmd_el, 1); | |
f67ffa6a AB |
3473 | |
3474 | add_cmd ("address", class_stack, &info_frame_cmd.address, | |
3475 | _("\ | |
3476 | Print information about a stack frame selected by stack address.\n\ | |
3477 | \n\ | |
3478 | Usage: info frame address STACK-ADDRESS"), | |
3479 | &info_frame_cmd_list); | |
3480 | ||
3481 | add_cmd ("view", class_stack, &info_frame_cmd.view, | |
3482 | _("\ | |
3483 | Print information about a stack frame outside the current backtrace.\n\ | |
3484 | \n\ | |
3485 | Usage: info frame view STACK-ADDRESS\n\ | |
3486 | info frame view STACK-ADDRESS PC-ADDRESS"), | |
3487 | &info_frame_cmd_list); | |
3488 | ||
3489 | cmd = add_cmd ("function", class_stack, &info_frame_cmd.function, | |
3490 | _("\ | |
3491 | Print information about a stack frame selected by function name.\n\ | |
3492 | \n\ | |
3493 | Usage: info frame function NAME"), | |
3494 | &info_frame_cmd_list); | |
3495 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
3496 | ||
3497 | add_cmd ("level", class_stack, &info_frame_cmd.level, | |
3498 | _("\ | |
3499 | Print information about a stack frame selected by level.\n\ | |
3500 | \n\ | |
3501 | Usage: info frame level LEVEL"), | |
3502 | &info_frame_cmd_list); | |
3503 | ||
60cfcb20 AB |
3504 | cmd = add_info ("locals", info_locals_command, |
3505 | info_print_args_help (_("\ | |
12615cba PW |
3506 | All local variables of current stack frame or those matching REGEXPs.\n\ |
3507 | Usage: info locals [-q] [-t TYPEREGEXP] [NAMEREGEXP]\n\ | |
3508 | Prints the local variables of the current stack frame.\n"), | |
4acfdd20 AB |
3509 | _("local variables"), |
3510 | false)); | |
60cfcb20 AB |
3511 | set_cmd_completer_handle_brkchars (cmd, info_print_command_completer); |
3512 | cmd = add_info ("args", info_args_command, | |
3513 | info_print_args_help (_("\ | |
12615cba PW |
3514 | All argument variables of current stack frame or those matching REGEXPs.\n\ |
3515 | Usage: info args [-q] [-t TYPEREGEXP] [NAMEREGEXP]\n\ | |
3516 | Prints the argument variables of the current stack frame.\n"), | |
4acfdd20 AB |
3517 | _("argument variables"), |
3518 | false)); | |
60cfcb20 | 3519 | set_cmd_completer_handle_brkchars (cmd, info_print_command_completer); |
c906108c | 3520 | |
2daf894e PA |
3521 | /* Install "set print raw frame-arguments", a deprecated spelling of |
3522 | "set print raw-frame-arguments". */ | |
af7f8f52 SM |
3523 | set_show_commands set_show_frame_args |
3524 | = add_setshow_boolean_cmd | |
3525 | ("frame-arguments", no_class, | |
3526 | &user_frame_print_options.print_raw_frame_arguments, | |
3527 | _("\ | |
2daf894e PA |
3528 | Set whether to print frame arguments in raw form."), _("\ |
3529 | Show whether to print frame arguments in raw form."), _("\ | |
3530 | If set, frame arguments are printed in raw form, bypassing any\n\ | |
3531 | pretty-printers for that value."), | |
af7f8f52 SM |
3532 | NULL, NULL, |
3533 | &setprintrawlist, &showprintrawlist); | |
3534 | deprecate_cmd (set_show_frame_args.set, "set print raw-frame-arguments"); | |
2daf894e | 3535 | |
30c33a9f | 3536 | add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack, |
dda83cd7 | 3537 | &disassemble_next_line, _("\ |
3e43a32a MS |
3538 | Set whether to disassemble next source line or insn when execution stops."), |
3539 | _("\ | |
3540 | Show whether to disassemble next source line or insn when execution stops."), | |
3541 | _("\ | |
80a0ea0f EZ |
3542 | If ON, GDB will display disassembly of the next source line, in addition\n\ |
3543 | to displaying the source line itself. If the next source line cannot\n\ | |
3544 | be displayed (e.g., source is unavailable or there's no line info), GDB\n\ | |
3545 | will display disassembly of next instruction instead of showing the\n\ | |
3546 | source line.\n\ | |
3547 | If AUTO, display disassembly of next instruction only if the source line\n\ | |
3548 | cannot be displayed.\n\ | |
3549 | If OFF (which is the default), never display the disassembly of the next\n\ | |
3550 | source line."), | |
dda83cd7 SM |
3551 | NULL, |
3552 | show_disassemble_next_line, | |
3553 | &setlist, &showlist); | |
a362e3d3 | 3554 | disassemble_next_line = AUTO_BOOLEAN_FALSE; |
e18b2753 | 3555 | |
d4c16835 PA |
3556 | gdb::option::add_setshow_cmds_for_options |
3557 | (class_stack, &user_frame_print_options, | |
3558 | frame_print_option_defs, &setprintlist, &showprintlist); | |
c906108c | 3559 | } |