Commit | Line | Data |
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c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 19 | |
c906108c | 20 | #include "defs.h" |
c906108c SS |
21 | #include "value.h" |
22 | #include "symtab.h" | |
23 | #include "gdbtypes.h" | |
24 | #include "expression.h" | |
25 | #include "language.h" | |
26 | #include "frame.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "gdbcore.h" | |
29 | #include "target.h" | |
0378c332 | 30 | #include "source.h" |
c906108c SS |
31 | #include "breakpoint.h" |
32 | #include "demangle.h" | |
33 | #include "inferior.h" | |
34 | #include "annotate.h" | |
8b93c638 | 35 | #include "ui-out.h" |
fe898f56 | 36 | #include "block.h" |
b9362cc7 | 37 | #include "stack.h" |
de4f826b | 38 | #include "dictionary.h" |
898c62f5 | 39 | #include "reggroups.h" |
fc70c2a0 | 40 | #include "regcache.h" |
a77053c2 | 41 | #include "solib.h" |
033a42c2 | 42 | #include "valprint.h" |
8ea051c5 | 43 | #include "gdbthread.h" |
3567439c | 44 | #include "cp-support.h" |
30c33a9f | 45 | #include "disasm.h" |
edb3359d | 46 | #include "inline-frame.h" |
f8eba3c6 | 47 | #include "linespec.h" |
529480d0 | 48 | #include "cli/cli-utils.h" |
77e371c0 | 49 | #include "objfiles.h" |
c906108c | 50 | |
ccefe4c4 | 51 | #include "symfile.h" |
6dddc817 | 52 | #include "extension.h" |
76727919 | 53 | #include "observable.h" |
0b868b60 | 54 | #include "common/def-vector.h" |
ccefe4c4 | 55 | |
2421fe6f | 56 | /* The possible choices of "set print frame-arguments", and the value |
88408340 JB |
57 | of this setting. */ |
58 | ||
40478521 | 59 | static const char *const print_frame_arguments_choices[] = |
88408340 | 60 | {"all", "scalars", "none", NULL}; |
476f7b68 | 61 | static const char *print_frame_arguments = "scalars"; |
88408340 | 62 | |
e7045703 DE |
63 | /* If non-zero, don't invoke pretty-printers for frame arguments. */ |
64 | static int print_raw_frame_arguments; | |
65 | ||
e18b2753 JK |
66 | /* The possible choices of "set print entry-values", and the value |
67 | of this setting. */ | |
68 | ||
69 | const char print_entry_values_no[] = "no"; | |
70 | const char print_entry_values_only[] = "only"; | |
71 | const char print_entry_values_preferred[] = "preferred"; | |
72 | const char print_entry_values_if_needed[] = "if-needed"; | |
73 | const char print_entry_values_both[] = "both"; | |
74 | const char print_entry_values_compact[] = "compact"; | |
75 | const char print_entry_values_default[] = "default"; | |
40478521 | 76 | static const char *const print_entry_values_choices[] = |
e18b2753 JK |
77 | { |
78 | print_entry_values_no, | |
79 | print_entry_values_only, | |
80 | print_entry_values_preferred, | |
81 | print_entry_values_if_needed, | |
82 | print_entry_values_both, | |
83 | print_entry_values_compact, | |
84 | print_entry_values_default, | |
85 | NULL | |
86 | }; | |
87 | const char *print_entry_values = print_entry_values_default; | |
88 | ||
c378eb4e | 89 | /* Prototypes for local functions. */ |
c906108c | 90 | |
d9fcf2fb JM |
91 | static void print_frame_local_vars (struct frame_info *, int, |
92 | struct ui_file *); | |
c906108c | 93 | |
033a42c2 MK |
94 | static void print_frame (struct frame_info *frame, int print_level, |
95 | enum print_what print_what, int print_args, | |
c5394b80 JM |
96 | struct symtab_and_line sal); |
97 | ||
1bfeeb0f JL |
98 | static void set_last_displayed_sal (int valid, |
99 | struct program_space *pspace, | |
100 | CORE_ADDR addr, | |
101 | struct symtab *symtab, | |
102 | int line); | |
103 | ||
f67ffa6a AB |
104 | static struct frame_info *find_frame_for_function (const char *); |
105 | static struct frame_info *find_frame_for_address (CORE_ADDR); | |
106 | ||
c906108c SS |
107 | /* Zero means do things normally; we are interacting directly with the |
108 | user. One means print the full filename and linenumber when a | |
109 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
110 | parse. Two means print similar annotations, but in many more | |
111 | cases and in a slightly different syntax. */ | |
112 | ||
113 | int annotation_level = 0; | |
1bfeeb0f JL |
114 | |
115 | /* These variables hold the last symtab and line we displayed to the user. | |
116 | * This is where we insert a breakpoint or a skiplist entry by default. */ | |
117 | static int last_displayed_sal_valid = 0; | |
118 | static struct program_space *last_displayed_pspace = 0; | |
119 | static CORE_ADDR last_displayed_addr = 0; | |
120 | static struct symtab *last_displayed_symtab = 0; | |
121 | static int last_displayed_line = 0; | |
c906108c | 122 | \f |
c5aa993b | 123 | |
edb3359d DJ |
124 | /* Return 1 if we should display the address in addition to the location, |
125 | because we are in the middle of a statement. */ | |
126 | ||
127 | static int | |
128 | frame_show_address (struct frame_info *frame, | |
129 | struct symtab_and_line sal) | |
130 | { | |
131 | /* If there is a line number, but no PC, then there is no location | |
132 | information associated with this sal. The only way that should | |
133 | happen is for the call sites of inlined functions (SAL comes from | |
134 | find_frame_sal). Otherwise, we would have some PC range if the | |
135 | SAL came from a line table. */ | |
136 | if (sal.line != 0 && sal.pc == 0 && sal.end == 0) | |
137 | { | |
138 | if (get_next_frame (frame) == NULL) | |
00431a78 | 139 | gdb_assert (inline_skipped_frames (inferior_thread ()) > 0); |
edb3359d DJ |
140 | else |
141 | gdb_assert (get_frame_type (get_next_frame (frame)) == INLINE_FRAME); | |
142 | return 0; | |
143 | } | |
144 | ||
145 | return get_frame_pc (frame) != sal.pc; | |
146 | } | |
147 | ||
4034d0ff AT |
148 | /* See frame.h. */ |
149 | ||
150 | void | |
151 | print_stack_frame_to_uiout (struct ui_out *uiout, struct frame_info *frame, | |
152 | int print_level, enum print_what print_what, | |
153 | int set_current_sal) | |
154 | { | |
67ad9399 | 155 | scoped_restore save_uiout = make_scoped_restore (¤t_uiout, uiout); |
4034d0ff AT |
156 | |
157 | print_stack_frame (frame, print_level, print_what, set_current_sal); | |
4034d0ff AT |
158 | } |
159 | ||
f9acce4a | 160 | /* Show or print a stack frame FRAME briefly. The output is formatted |
d762c46a AC |
161 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
162 | relative level, function name, argument list, and file name and | |
163 | line number. If the frame's PC is not at the beginning of the | |
164 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
165 | |
166 | void | |
033a42c2 | 167 | print_stack_frame (struct frame_info *frame, int print_level, |
08d72866 PA |
168 | enum print_what print_what, |
169 | int set_current_sal) | |
c906108c | 170 | { |
c906108c | 171 | |
aaf9e9fd | 172 | /* For mi, alway print location and address. */ |
112e8700 | 173 | if (current_uiout->is_mi_like_p ()) |
311b5970 | 174 | print_what = LOC_AND_ADDRESS; |
c906108c | 175 | |
492d29ea | 176 | TRY |
311b5970 | 177 | { |
08d72866 PA |
178 | print_frame_info (frame, print_level, print_what, 1 /* print_args */, |
179 | set_current_sal); | |
180 | if (set_current_sal) | |
5166082f | 181 | set_current_sal_from_frame (frame); |
311b5970 | 182 | } |
492d29ea PA |
183 | CATCH (e, RETURN_MASK_ERROR) |
184 | { | |
185 | } | |
186 | END_CATCH | |
311b5970 | 187 | } |
c906108c | 188 | |
033a42c2 MK |
189 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
190 | the offset of the first nameless argument, and NUM is the number of | |
191 | nameless arguments to print. FIRST is nonzero if this is the first | |
192 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
193 | |
194 | static void | |
033a42c2 | 195 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
196 | int first, struct ui_file *stream) |
197 | { | |
e17a4113 UW |
198 | struct gdbarch *gdbarch = get_frame_arch (frame); |
199 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
8d3b0994 AC |
200 | int i; |
201 | CORE_ADDR argsaddr; | |
202 | long arg_value; | |
203 | ||
204 | for (i = 0; i < num; i++) | |
205 | { | |
206 | QUIT; | |
033a42c2 | 207 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
208 | if (!argsaddr) |
209 | return; | |
e17a4113 UW |
210 | arg_value = read_memory_integer (argsaddr + start, |
211 | sizeof (int), byte_order); | |
8d3b0994 AC |
212 | if (!first) |
213 | fprintf_filtered (stream, ", "); | |
214 | fprintf_filtered (stream, "%ld", arg_value); | |
215 | first = 0; | |
216 | start += sizeof (int); | |
217 | } | |
218 | } | |
219 | ||
93d86cef JK |
220 | /* Print single argument of inferior function. ARG must be already |
221 | read in. | |
222 | ||
223 | Errors are printed as if they would be the parameter value. Use zeroed ARG | |
224 | iff it should not be printed accoring to user settings. */ | |
225 | ||
226 | static void | |
227 | print_frame_arg (const struct frame_arg *arg) | |
228 | { | |
229 | struct ui_out *uiout = current_uiout; | |
492d29ea | 230 | const char *error_message = NULL; |
93d86cef | 231 | |
d7e74731 | 232 | string_file stb; |
93d86cef JK |
233 | |
234 | gdb_assert (!arg->val || !arg->error); | |
e18b2753 JK |
235 | gdb_assert (arg->entry_kind == print_entry_values_no |
236 | || arg->entry_kind == print_entry_values_only | |
112e8700 | 237 | || (!uiout->is_mi_like_p () |
e18b2753 | 238 | && arg->entry_kind == print_entry_values_compact)); |
93d86cef | 239 | |
46b9c129 TT |
240 | annotate_arg_emitter arg_emitter; |
241 | ui_out_emit_tuple tuple_emitter (uiout, NULL); | |
d7e74731 | 242 | fprintf_symbol_filtered (&stb, SYMBOL_PRINT_NAME (arg->sym), |
93d86cef | 243 | SYMBOL_LANGUAGE (arg->sym), DMGL_PARAMS | DMGL_ANSI); |
e18b2753 JK |
244 | if (arg->entry_kind == print_entry_values_compact) |
245 | { | |
246 | /* It is OK to provide invalid MI-like stream as with | |
247 | PRINT_ENTRY_VALUE_COMPACT we never use MI. */ | |
d7e74731 | 248 | stb.puts ("="); |
e18b2753 | 249 | |
d7e74731 | 250 | fprintf_symbol_filtered (&stb, SYMBOL_PRINT_NAME (arg->sym), |
e18b2753 JK |
251 | SYMBOL_LANGUAGE (arg->sym), |
252 | DMGL_PARAMS | DMGL_ANSI); | |
253 | } | |
254 | if (arg->entry_kind == print_entry_values_only | |
255 | || arg->entry_kind == print_entry_values_compact) | |
d7e74731 | 256 | stb.puts ("@entry"); |
112e8700 | 257 | uiout->field_stream ("name", stb); |
93d86cef | 258 | annotate_arg_name_end (); |
112e8700 | 259 | uiout->text ("="); |
93d86cef JK |
260 | |
261 | if (!arg->val && !arg->error) | |
112e8700 | 262 | uiout->text ("..."); |
93d86cef JK |
263 | else |
264 | { | |
265 | if (arg->error) | |
492d29ea | 266 | error_message = arg->error; |
93d86cef JK |
267 | else |
268 | { | |
492d29ea | 269 | TRY |
93d86cef JK |
270 | { |
271 | const struct language_defn *language; | |
272 | struct value_print_options opts; | |
273 | ||
274 | /* Avoid value_print because it will deref ref parameters. We | |
275 | just want to print their addresses. Print ??? for args whose | |
276 | address we do not know. We pass 2 as "recurse" to val_print | |
277 | because our standard indentation here is 4 spaces, and | |
278 | val_print indents 2 for each recurse. */ | |
279 | ||
280 | annotate_arg_value (value_type (arg->val)); | |
281 | ||
282 | /* Use the appropriate language to display our symbol, unless the | |
283 | user forced the language to a specific language. */ | |
284 | if (language_mode == language_mode_auto) | |
285 | language = language_def (SYMBOL_LANGUAGE (arg->sym)); | |
286 | else | |
287 | language = current_language; | |
288 | ||
2a998fc0 | 289 | get_no_prettyformat_print_options (&opts); |
3343315b | 290 | opts.deref_ref = 1; |
e7045703 | 291 | opts.raw = print_raw_frame_arguments; |
93d86cef JK |
292 | |
293 | /* True in "summary" mode, false otherwise. */ | |
294 | opts.summary = !strcmp (print_frame_arguments, "scalars"); | |
295 | ||
d7e74731 | 296 | common_val_print (arg->val, &stb, 2, &opts, language); |
93d86cef | 297 | } |
492d29ea PA |
298 | CATCH (except, RETURN_MASK_ERROR) |
299 | { | |
300 | error_message = except.message; | |
301 | } | |
302 | END_CATCH | |
93d86cef | 303 | } |
492d29ea | 304 | if (error_message != NULL) |
d7e74731 | 305 | stb.printf (_("<error reading variable: %s>"), error_message); |
93d86cef JK |
306 | } |
307 | ||
112e8700 | 308 | uiout->field_stream ("value", stb); |
93d86cef JK |
309 | } |
310 | ||
82a0a75f YQ |
311 | /* Read in inferior function local SYM at FRAME into ARGP. Caller is |
312 | responsible for xfree of ARGP->ERROR. This function never throws an | |
313 | exception. */ | |
314 | ||
315 | void | |
316 | read_frame_local (struct symbol *sym, struct frame_info *frame, | |
317 | struct frame_arg *argp) | |
318 | { | |
492d29ea PA |
319 | argp->sym = sym; |
320 | argp->val = NULL; | |
321 | argp->error = NULL; | |
322 | ||
323 | TRY | |
82a0a75f | 324 | { |
63e43d3a | 325 | argp->val = read_var_value (sym, NULL, frame); |
82a0a75f | 326 | } |
492d29ea PA |
327 | CATCH (except, RETURN_MASK_ERROR) |
328 | { | |
329 | argp->error = xstrdup (except.message); | |
330 | } | |
331 | END_CATCH | |
82a0a75f YQ |
332 | } |
333 | ||
93d86cef JK |
334 | /* Read in inferior function parameter SYM at FRAME into ARGP. Caller is |
335 | responsible for xfree of ARGP->ERROR. This function never throws an | |
336 | exception. */ | |
337 | ||
338 | void | |
339 | read_frame_arg (struct symbol *sym, struct frame_info *frame, | |
e18b2753 | 340 | struct frame_arg *argp, struct frame_arg *entryargp) |
93d86cef | 341 | { |
e18b2753 JK |
342 | struct value *val = NULL, *entryval = NULL; |
343 | char *val_error = NULL, *entryval_error = NULL; | |
344 | int val_equal = 0; | |
93d86cef | 345 | |
e18b2753 JK |
346 | if (print_entry_values != print_entry_values_only |
347 | && print_entry_values != print_entry_values_preferred) | |
348 | { | |
492d29ea | 349 | TRY |
e18b2753 | 350 | { |
63e43d3a | 351 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 352 | } |
492d29ea | 353 | CATCH (except, RETURN_MASK_ERROR) |
e18b2753 | 354 | { |
224c3ddb | 355 | val_error = (char *) alloca (strlen (except.message) + 1); |
e18b2753 JK |
356 | strcpy (val_error, except.message); |
357 | } | |
492d29ea | 358 | END_CATCH |
e18b2753 JK |
359 | } |
360 | ||
24d6c2a0 TT |
361 | if (SYMBOL_COMPUTED_OPS (sym) != NULL |
362 | && SYMBOL_COMPUTED_OPS (sym)->read_variable_at_entry != NULL | |
e18b2753 JK |
363 | && print_entry_values != print_entry_values_no |
364 | && (print_entry_values != print_entry_values_if_needed | |
365 | || !val || value_optimized_out (val))) | |
366 | { | |
492d29ea | 367 | TRY |
e18b2753 JK |
368 | { |
369 | const struct symbol_computed_ops *ops; | |
370 | ||
371 | ops = SYMBOL_COMPUTED_OPS (sym); | |
372 | entryval = ops->read_variable_at_entry (sym, frame); | |
373 | } | |
492d29ea | 374 | CATCH (except, RETURN_MASK_ERROR) |
e18b2753 | 375 | { |
492d29ea PA |
376 | if (except.error != NO_ENTRY_VALUE_ERROR) |
377 | { | |
378 | entryval_error = (char *) alloca (strlen (except.message) + 1); | |
379 | strcpy (entryval_error, except.message); | |
380 | } | |
e18b2753 | 381 | } |
492d29ea | 382 | END_CATCH |
e18b2753 | 383 | |
492d29ea PA |
384 | if (entryval != NULL && value_optimized_out (entryval)) |
385 | entryval = NULL; | |
e18b2753 JK |
386 | |
387 | if (print_entry_values == print_entry_values_compact | |
388 | || print_entry_values == print_entry_values_default) | |
389 | { | |
390 | /* For MI do not try to use print_entry_values_compact for ARGP. */ | |
391 | ||
112e8700 | 392 | if (val && entryval && !current_uiout->is_mi_like_p ()) |
e18b2753 | 393 | { |
744a8059 | 394 | struct type *type = value_type (val); |
e18b2753 | 395 | |
9a0dc9e3 PA |
396 | if (value_lazy (val)) |
397 | value_fetch_lazy (val); | |
398 | if (value_lazy (entryval)) | |
399 | value_fetch_lazy (entryval); | |
400 | ||
401 | if (value_contents_eq (val, 0, entryval, 0, TYPE_LENGTH (type))) | |
e18b2753 | 402 | { |
509f0fd9 JK |
403 | /* Initialize it just to avoid a GCC false warning. */ |
404 | struct value *val_deref = NULL, *entryval_deref; | |
a471c594 | 405 | |
216f72a1 | 406 | /* DW_AT_call_value does match with the current |
a471c594 | 407 | value. If it is a reference still try to verify if |
216f72a1 | 408 | dereferenced DW_AT_call_data_value does not differ. */ |
a471c594 | 409 | |
492d29ea | 410 | TRY |
a471c594 | 411 | { |
744a8059 | 412 | struct type *type_deref; |
a471c594 JK |
413 | |
414 | val_deref = coerce_ref (val); | |
415 | if (value_lazy (val_deref)) | |
416 | value_fetch_lazy (val_deref); | |
744a8059 | 417 | type_deref = value_type (val_deref); |
a471c594 JK |
418 | |
419 | entryval_deref = coerce_ref (entryval); | |
420 | if (value_lazy (entryval_deref)) | |
421 | value_fetch_lazy (entryval_deref); | |
422 | ||
423 | /* If the reference addresses match but dereferenced | |
424 | content does not match print them. */ | |
425 | if (val != val_deref | |
9a0dc9e3 PA |
426 | && value_contents_eq (val_deref, 0, |
427 | entryval_deref, 0, | |
428 | TYPE_LENGTH (type_deref))) | |
a471c594 JK |
429 | val_equal = 1; |
430 | } | |
492d29ea PA |
431 | CATCH (except, RETURN_MASK_ERROR) |
432 | { | |
433 | /* If the dereferenced content could not be | |
434 | fetched do not display anything. */ | |
435 | if (except.error == NO_ENTRY_VALUE_ERROR) | |
436 | val_equal = 1; | |
437 | else if (except.message != NULL) | |
438 | { | |
439 | entryval_error = (char *) alloca (strlen (except.message) + 1); | |
440 | strcpy (entryval_error, except.message); | |
441 | } | |
442 | } | |
443 | END_CATCH | |
a471c594 JK |
444 | |
445 | /* Value was not a reference; and its content matches. */ | |
446 | if (val == val_deref) | |
447 | val_equal = 1; | |
a471c594 JK |
448 | |
449 | if (val_equal) | |
450 | entryval = NULL; | |
e18b2753 JK |
451 | } |
452 | } | |
453 | ||
454 | /* Try to remove possibly duplicate error message for ENTRYARGP even | |
455 | in MI mode. */ | |
456 | ||
457 | if (val_error && entryval_error | |
458 | && strcmp (val_error, entryval_error) == 0) | |
459 | { | |
460 | entryval_error = NULL; | |
461 | ||
462 | /* Do not se VAL_EQUAL as the same error message may be shown for | |
463 | the entry value even if no entry values are present in the | |
464 | inferior. */ | |
465 | } | |
466 | } | |
467 | } | |
468 | ||
469 | if (entryval == NULL) | |
93d86cef | 470 | { |
e18b2753 JK |
471 | if (print_entry_values == print_entry_values_preferred) |
472 | { | |
492d29ea PA |
473 | gdb_assert (val == NULL); |
474 | ||
475 | TRY | |
e18b2753 | 476 | { |
63e43d3a | 477 | val = read_var_value (sym, NULL, frame); |
e18b2753 | 478 | } |
492d29ea | 479 | CATCH (except, RETURN_MASK_ERROR) |
e18b2753 | 480 | { |
224c3ddb | 481 | val_error = (char *) alloca (strlen (except.message) + 1); |
e18b2753 JK |
482 | strcpy (val_error, except.message); |
483 | } | |
492d29ea | 484 | END_CATCH |
e18b2753 JK |
485 | } |
486 | if (print_entry_values == print_entry_values_only | |
487 | || print_entry_values == print_entry_values_both | |
488 | || (print_entry_values == print_entry_values_preferred | |
489 | && (!val || value_optimized_out (val)))) | |
1ed8d800 YQ |
490 | { |
491 | entryval = allocate_optimized_out_value (SYMBOL_TYPE (sym)); | |
492 | entryval_error = NULL; | |
493 | } | |
93d86cef | 494 | } |
e18b2753 JK |
495 | if ((print_entry_values == print_entry_values_compact |
496 | || print_entry_values == print_entry_values_if_needed | |
497 | || print_entry_values == print_entry_values_preferred) | |
498 | && (!val || value_optimized_out (val)) && entryval != NULL) | |
93d86cef | 499 | { |
e18b2753 JK |
500 | val = NULL; |
501 | val_error = NULL; | |
93d86cef JK |
502 | } |
503 | ||
504 | argp->sym = sym; | |
505 | argp->val = val; | |
506 | argp->error = val_error ? xstrdup (val_error) : NULL; | |
e18b2753 JK |
507 | if (!val && !val_error) |
508 | argp->entry_kind = print_entry_values_only; | |
509 | else if ((print_entry_values == print_entry_values_compact | |
510 | || print_entry_values == print_entry_values_default) && val_equal) | |
511 | { | |
512 | argp->entry_kind = print_entry_values_compact; | |
112e8700 | 513 | gdb_assert (!current_uiout->is_mi_like_p ()); |
e18b2753 JK |
514 | } |
515 | else | |
516 | argp->entry_kind = print_entry_values_no; | |
517 | ||
518 | entryargp->sym = sym; | |
519 | entryargp->val = entryval; | |
520 | entryargp->error = entryval_error ? xstrdup (entryval_error) : NULL; | |
521 | if (!entryval && !entryval_error) | |
522 | entryargp->entry_kind = print_entry_values_no; | |
523 | else | |
524 | entryargp->entry_kind = print_entry_values_only; | |
93d86cef JK |
525 | } |
526 | ||
033a42c2 MK |
527 | /* Print the arguments of frame FRAME on STREAM, given the function |
528 | FUNC running in that frame (as a symbol), where NUM is the number | |
529 | of arguments according to the stack frame (or -1 if the number of | |
530 | arguments is unknown). */ | |
8d3b0994 | 531 | |
e3168615 | 532 | /* Note that currently the "number of arguments according to the |
033a42c2 | 533 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 534 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
535 | |
536 | static void | |
033a42c2 MK |
537 | print_frame_args (struct symbol *func, struct frame_info *frame, |
538 | int num, struct ui_file *stream) | |
8d3b0994 | 539 | { |
79a45e25 | 540 | struct ui_out *uiout = current_uiout; |
8d3b0994 | 541 | int first = 1; |
8d3b0994 | 542 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
543 | at the highest offset, or -1 if we haven't come to a stack |
544 | argument yet. */ | |
8d3b0994 | 545 | long highest_offset = -1; |
8d3b0994 AC |
546 | /* Number of ints of arguments that we have printed so far. */ |
547 | int args_printed = 0; | |
a6bac58e TT |
548 | /* True if we should print arguments, false otherwise. */ |
549 | int print_args = strcmp (print_frame_arguments, "none"); | |
8d3b0994 | 550 | |
8d3b0994 AC |
551 | if (func) |
552 | { | |
3977b71f | 553 | const struct block *b = SYMBOL_BLOCK_VALUE (func); |
8157b174 | 554 | struct block_iterator iter; |
033a42c2 | 555 | struct symbol *sym; |
8d3b0994 | 556 | |
de4f826b | 557 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 | 558 | { |
e18b2753 | 559 | struct frame_arg arg, entryarg; |
93d86cef | 560 | |
8d3b0994 AC |
561 | QUIT; |
562 | ||
563 | /* Keep track of the highest stack argument offset seen, and | |
564 | skip over any kinds of symbols we don't care about. */ | |
565 | ||
2a2d4dc3 AS |
566 | if (!SYMBOL_IS_ARGUMENT (sym)) |
567 | continue; | |
568 | ||
8d3b0994 AC |
569 | switch (SYMBOL_CLASS (sym)) |
570 | { | |
571 | case LOC_ARG: | |
572 | case LOC_REF_ARG: | |
573 | { | |
574 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 575 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
576 | |
577 | /* Compute address of next argument by adding the size of | |
578 | this argument and rounding to an int boundary. */ | |
579 | current_offset = | |
580 | ((current_offset + arg_size + sizeof (int) - 1) | |
581 | & ~(sizeof (int) - 1)); | |
582 | ||
033a42c2 MK |
583 | /* If this is the highest offset seen yet, set |
584 | highest_offset. */ | |
8d3b0994 AC |
585 | if (highest_offset == -1 |
586 | || (current_offset > highest_offset)) | |
587 | highest_offset = current_offset; | |
588 | ||
033a42c2 MK |
589 | /* Add the number of ints we're about to print to |
590 | args_printed. */ | |
8d3b0994 AC |
591 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
592 | } | |
593 | ||
033a42c2 MK |
594 | /* We care about types of symbols, but don't need to |
595 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 596 | case LOC_REGISTER: |
8d3b0994 | 597 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
598 | case LOC_COMPUTED: |
599 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 600 | default: |
2a2d4dc3 | 601 | break; |
8d3b0994 AC |
602 | } |
603 | ||
604 | /* We have to look up the symbol because arguments can have | |
605 | two entries (one a parameter, one a local) and the one we | |
606 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 607 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
608 | small structure and gcc2 when the argument type is float |
609 | and it is passed as a double and converted to float by | |
610 | the prologue (in the latter case the type of the LOC_ARG | |
611 | symbol is double and the type of the LOC_LOCAL symbol is | |
612 | float). */ | |
033a42c2 MK |
613 | /* But if the parameter name is null, don't try it. Null |
614 | parameter names occur on the RS/6000, for traceback | |
615 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 616 | |
3567439c | 617 | if (*SYMBOL_LINKAGE_NAME (sym)) |
8d3b0994 AC |
618 | { |
619 | struct symbol *nsym; | |
433759f7 | 620 | |
de63c46b PA |
621 | nsym = lookup_symbol_search_name (SYMBOL_SEARCH_NAME (sym), |
622 | b, VAR_DOMAIN).symbol; | |
55765a25 | 623 | gdb_assert (nsym != NULL); |
2a2d4dc3 AS |
624 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER |
625 | && !SYMBOL_IS_ARGUMENT (nsym)) | |
8d3b0994 | 626 | { |
033a42c2 MK |
627 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
628 | that it was passed on the stack and loaded into a | |
629 | register, or passed in a register and stored in a | |
630 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
631 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
632 | |
633 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
634 | |
635 | (1) Because find_saved_registers may be slow for | |
636 | remote debugging. | |
637 | ||
638 | (2) Because registers are often re-used and stack | |
639 | slots rarely (never?) are. Therefore using | |
640 | the stack slot is much less likely to print | |
641 | garbage. | |
8d3b0994 AC |
642 | |
643 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
644 | |
645 | (1) So that the backtrace prints the same value | |
646 | as "print foo". I see no compelling reason | |
647 | why this needs to be the case; having the | |
648 | backtrace print the value which was passed | |
649 | in, and "print foo" print the value as | |
650 | modified within the called function, makes | |
651 | perfect sense to me. | |
652 | ||
653 | Additional note: It might be nice if "info args" | |
654 | displayed both values. | |
655 | ||
656 | One more note: There is a case with SPARC | |
657 | structure passing where we need to use the | |
658 | LOC_REGISTER, but this is dealt with by creating | |
659 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
660 | |
661 | /* Leave sym (the LOC_ARG) alone. */ | |
662 | ; | |
663 | } | |
664 | else | |
665 | sym = nsym; | |
666 | } | |
667 | ||
668 | /* Print the current arg. */ | |
669 | if (!first) | |
112e8700 SM |
670 | uiout->text (", "); |
671 | uiout->wrap_hint (" "); | |
8d3b0994 | 672 | |
93d86cef JK |
673 | if (!print_args) |
674 | { | |
675 | memset (&arg, 0, sizeof (arg)); | |
676 | arg.sym = sym; | |
e18b2753 JK |
677 | arg.entry_kind = print_entry_values_no; |
678 | memset (&entryarg, 0, sizeof (entryarg)); | |
679 | entryarg.sym = sym; | |
680 | entryarg.entry_kind = print_entry_values_no; | |
93d86cef JK |
681 | } |
682 | else | |
e18b2753 | 683 | read_frame_arg (sym, frame, &arg, &entryarg); |
8d3b0994 | 684 | |
e18b2753 JK |
685 | if (arg.entry_kind != print_entry_values_only) |
686 | print_frame_arg (&arg); | |
687 | ||
688 | if (entryarg.entry_kind != print_entry_values_no) | |
689 | { | |
690 | if (arg.entry_kind != print_entry_values_only) | |
691 | { | |
112e8700 SM |
692 | uiout->text (", "); |
693 | uiout->wrap_hint (" "); | |
e18b2753 JK |
694 | } |
695 | ||
696 | print_frame_arg (&entryarg); | |
697 | } | |
8d3b0994 | 698 | |
93d86cef | 699 | xfree (arg.error); |
e18b2753 | 700 | xfree (entryarg.error); |
8d3b0994 AC |
701 | |
702 | first = 0; | |
703 | } | |
704 | } | |
705 | ||
706 | /* Don't print nameless args in situations where we don't know | |
707 | enough about the stack to find them. */ | |
708 | if (num != -1) | |
709 | { | |
710 | long start; | |
711 | ||
712 | if (highest_offset == -1) | |
7500260a | 713 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
714 | else |
715 | start = highest_offset; | |
716 | ||
033a42c2 | 717 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
718 | first, stream); |
719 | } | |
8d3b0994 AC |
720 | } |
721 | ||
033a42c2 MK |
722 | /* Set the current source and line to the location given by frame |
723 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
724 | line is in the center of the next 'list'. */ | |
c789492a | 725 | |
7abfe014 | 726 | void |
5166082f | 727 | set_current_sal_from_frame (struct frame_info *frame) |
c789492a | 728 | { |
51abb421 | 729 | symtab_and_line sal = find_frame_sal (frame); |
5166082f | 730 | if (sal.symtab != NULL) |
51abb421 | 731 | set_current_source_symtab_and_line (sal); |
c789492a FL |
732 | } |
733 | ||
30c33a9f HZ |
734 | /* If ON, GDB will display disassembly of the next source line when |
735 | execution of the program being debugged stops. | |
481df73e HZ |
736 | If AUTO (which is the default), or there's no line info to determine |
737 | the source line of the next instruction, display disassembly of next | |
738 | instruction instead. */ | |
30c33a9f HZ |
739 | |
740 | static enum auto_boolean disassemble_next_line; | |
741 | ||
742 | static void | |
743 | show_disassemble_next_line (struct ui_file *file, int from_tty, | |
744 | struct cmd_list_element *c, | |
745 | const char *value) | |
746 | { | |
3e43a32a MS |
747 | fprintf_filtered (file, |
748 | _("Debugger's willingness to use " | |
749 | "disassemble-next-line is %s.\n"), | |
30c33a9f HZ |
750 | value); |
751 | } | |
752 | ||
30c33a9f HZ |
753 | /* Use TRY_CATCH to catch the exception from the gdb_disassembly |
754 | because it will be broken by filter sometime. */ | |
755 | ||
756 | static void | |
13274fc3 UW |
757 | do_gdb_disassembly (struct gdbarch *gdbarch, |
758 | int how_many, CORE_ADDR low, CORE_ADDR high) | |
30c33a9f | 759 | { |
30c33a9f | 760 | |
492d29ea | 761 | TRY |
30c33a9f | 762 | { |
7a8eb317 | 763 | gdb_disassembly (gdbarch, current_uiout, |
79a45e25 PA |
764 | DISASSEMBLY_RAW_INSN, how_many, |
765 | low, high); | |
30c33a9f | 766 | } |
492d29ea | 767 | CATCH (exception, RETURN_MASK_ERROR) |
b1d288d3 JK |
768 | { |
769 | /* If an exception was thrown while doing the disassembly, print | |
770 | the error message, to give the user a clue of what happened. */ | |
771 | exception_print (gdb_stderr, exception); | |
772 | } | |
492d29ea | 773 | END_CATCH |
30c33a9f HZ |
774 | } |
775 | ||
033a42c2 | 776 | /* Print information about frame FRAME. The output is format according |
65aa373f | 777 | to PRINT_LEVEL and PRINT_WHAT and PRINT_ARGS. The meaning of |
033a42c2 MK |
778 | PRINT_WHAT is: |
779 | ||
780 | SRC_LINE: Print only source line. | |
781 | LOCATION: Print only location. | |
50c65c2d | 782 | SRC_AND_LOC: Print location and source line. |
033a42c2 MK |
783 | |
784 | Used in "where" output, and to emit breakpoint or step | |
785 | messages. */ | |
c906108c | 786 | |
7789c6f5 | 787 | void |
033a42c2 | 788 | print_frame_info (struct frame_info *frame, int print_level, |
08d72866 PA |
789 | enum print_what print_what, int print_args, |
790 | int set_current_sal) | |
c906108c | 791 | { |
5af949e3 | 792 | struct gdbarch *gdbarch = get_frame_arch (frame); |
c5394b80 JM |
793 | int source_print; |
794 | int location_print; | |
79a45e25 | 795 | struct ui_out *uiout = current_uiout; |
c906108c | 796 | |
033a42c2 | 797 | if (get_frame_type (frame) == DUMMY_FRAME |
36f15f55 UW |
798 | || get_frame_type (frame) == SIGTRAMP_FRAME |
799 | || get_frame_type (frame) == ARCH_FRAME) | |
c906108c | 800 | { |
2e783024 | 801 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); |
c906108c | 802 | |
033a42c2 | 803 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
5af949e3 | 804 | gdbarch, get_frame_pc (frame)); |
6a3fe0a4 | 805 | |
c906108c | 806 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 807 | to list for this frame. */ |
0faf0076 | 808 | if (print_level) |
52c6a6ac | 809 | { |
112e8700 SM |
810 | uiout->text ("#"); |
811 | uiout->field_fmt_int (2, ui_left, "level", | |
033a42c2 | 812 | frame_relative_level (frame)); |
52c6a6ac | 813 | } |
112e8700 | 814 | if (uiout->is_mi_like_p ()) |
52c6a6ac | 815 | { |
075559bc | 816 | annotate_frame_address (); |
112e8700 | 817 | uiout->field_core_addr ("addr", |
5af949e3 | 818 | gdbarch, get_frame_pc (frame)); |
075559bc | 819 | annotate_frame_address_end (); |
52c6a6ac | 820 | } |
6a3fe0a4 | 821 | |
033a42c2 | 822 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
823 | { |
824 | annotate_function_call (); | |
112e8700 | 825 | uiout->field_string ("func", "<function called from gdb>"); |
075559bc | 826 | } |
033a42c2 | 827 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
828 | { |
829 | annotate_signal_handler_caller (); | |
112e8700 | 830 | uiout->field_string ("func", "<signal handler called>"); |
075559bc | 831 | } |
36f15f55 UW |
832 | else if (get_frame_type (frame) == ARCH_FRAME) |
833 | { | |
112e8700 | 834 | uiout->field_string ("func", "<cross-architecture call>"); |
36f15f55 | 835 | } |
112e8700 | 836 | uiout->text ("\n"); |
c906108c | 837 | annotate_frame_end (); |
075559bc | 838 | |
433e77fa HZ |
839 | /* If disassemble-next-line is set to auto or on output the next |
840 | instruction. */ | |
841 | if (disassemble_next_line == AUTO_BOOLEAN_AUTO | |
842 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
843 | do_gdb_disassembly (get_frame_arch (frame), 1, | |
844 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
845 | ||
c906108c SS |
846 | return; |
847 | } | |
848 | ||
033a42c2 MK |
849 | /* If FRAME is not the innermost frame, that normally means that |
850 | FRAME->pc points to *after* the call instruction, and we want to | |
851 | get the line containing the call, never the next line. But if | |
852 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
853 | next frame was not entered as the result of a call, and we want | |
854 | to get the line containing FRAME->pc. */ | |
51abb421 | 855 | symtab_and_line sal = find_frame_sal (frame); |
c906108c | 856 | |
0faf0076 AC |
857 | location_print = (print_what == LOCATION |
858 | || print_what == LOC_AND_ADDRESS | |
859 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
860 | |
861 | if (location_print || !sal.symtab) | |
033a42c2 | 862 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 863 | |
0faf0076 | 864 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 865 | |
30c33a9f HZ |
866 | /* If disassemble-next-line is set to auto or on and doesn't have |
867 | the line debug messages for $pc, output the next instruction. */ | |
868 | if ((disassemble_next_line == AUTO_BOOLEAN_AUTO | |
869 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
870 | && source_print && !sal.symtab) | |
13274fc3 UW |
871 | do_gdb_disassembly (get_frame_arch (frame), 1, |
872 | get_frame_pc (frame), get_frame_pc (frame) + 1); | |
30c33a9f | 873 | |
c5394b80 JM |
874 | if (source_print && sal.symtab) |
875 | { | |
876 | int done = 0; | |
0faf0076 | 877 | int mid_statement = ((print_what == SRC_LINE) |
edb3359d | 878 | && frame_show_address (frame, sal)); |
c5394b80 JM |
879 | |
880 | if (annotation_level) | |
881 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 882 | get_frame_pc (frame)); |
c5394b80 JM |
883 | if (!done) |
884 | { | |
9a4105ab | 885 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
886 | deprecated_print_frame_info_listing_hook (sal.symtab, |
887 | sal.line, | |
888 | sal.line + 1, 0); | |
ba4bbdcb | 889 | else |
c5394b80 | 890 | { |
79a45b7d | 891 | struct value_print_options opts; |
433759f7 | 892 | |
79a45b7d | 893 | get_user_print_options (&opts); |
ba4bbdcb | 894 | /* We used to do this earlier, but that is clearly |
c378eb4e | 895 | wrong. This function is used by many different |
ba4bbdcb KS |
896 | parts of gdb, including normal_stop in infrun.c, |
897 | which uses this to print out the current PC | |
898 | when we stepi/nexti into the middle of a source | |
c378eb4e MS |
899 | line. Only the command line really wants this |
900 | behavior. Other UIs probably would like the | |
cbd3c883 | 901 | ability to decide for themselves if it is desired. */ |
79a45b7d | 902 | if (opts.addressprint && mid_statement) |
ba4bbdcb | 903 | { |
112e8700 | 904 | uiout->field_core_addr ("addr", |
5af949e3 | 905 | gdbarch, get_frame_pc (frame)); |
112e8700 | 906 | uiout->text ("\t"); |
ba4bbdcb KS |
907 | } |
908 | ||
909 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 910 | } |
c5394b80 | 911 | } |
30c33a9f HZ |
912 | |
913 | /* If disassemble-next-line is set to on and there is line debug | |
914 | messages, output assembly codes for next line. */ | |
915 | if (disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
2b28d209 | 916 | do_gdb_disassembly (get_frame_arch (frame), -1, sal.pc, sal.end); |
c5394b80 JM |
917 | } |
918 | ||
08d72866 | 919 | if (set_current_sal) |
e3eebbd7 PA |
920 | { |
921 | CORE_ADDR pc; | |
922 | ||
923 | if (get_frame_pc_if_available (frame, &pc)) | |
1bfeeb0f | 924 | set_last_displayed_sal (1, sal.pspace, pc, sal.symtab, sal.line); |
e3eebbd7 | 925 | else |
1bfeeb0f | 926 | set_last_displayed_sal (0, 0, 0, 0, 0); |
e3eebbd7 | 927 | } |
c5394b80 JM |
928 | |
929 | annotate_frame_end (); | |
930 | ||
931 | gdb_flush (gdb_stdout); | |
932 | } | |
933 | ||
1bfeeb0f JL |
934 | /* Remember the last symtab and line we displayed, which we use e.g. |
935 | * as the place to put a breakpoint when the `break' command is | |
936 | * invoked with no arguments. */ | |
937 | ||
938 | static void | |
939 | set_last_displayed_sal (int valid, struct program_space *pspace, | |
940 | CORE_ADDR addr, struct symtab *symtab, | |
941 | int line) | |
942 | { | |
943 | last_displayed_sal_valid = valid; | |
944 | last_displayed_pspace = pspace; | |
945 | last_displayed_addr = addr; | |
946 | last_displayed_symtab = symtab; | |
947 | last_displayed_line = line; | |
4cb6da1c AR |
948 | if (valid && pspace == NULL) |
949 | { | |
4cb6da1c | 950 | clear_last_displayed_sal (); |
e36930bb PA |
951 | internal_error (__FILE__, __LINE__, |
952 | _("Trying to set NULL pspace.")); | |
4cb6da1c | 953 | } |
1bfeeb0f JL |
954 | } |
955 | ||
956 | /* Forget the last sal we displayed. */ | |
957 | ||
958 | void | |
959 | clear_last_displayed_sal (void) | |
960 | { | |
961 | last_displayed_sal_valid = 0; | |
962 | last_displayed_pspace = 0; | |
963 | last_displayed_addr = 0; | |
964 | last_displayed_symtab = 0; | |
965 | last_displayed_line = 0; | |
966 | } | |
967 | ||
968 | /* Is our record of the last sal we displayed valid? If not, | |
969 | * the get_last_displayed_* functions will return NULL or 0, as | |
970 | * appropriate. */ | |
971 | ||
972 | int | |
973 | last_displayed_sal_is_valid (void) | |
974 | { | |
975 | return last_displayed_sal_valid; | |
976 | } | |
977 | ||
978 | /* Get the pspace of the last sal we displayed, if it's valid. */ | |
979 | ||
980 | struct program_space * | |
981 | get_last_displayed_pspace (void) | |
982 | { | |
983 | if (last_displayed_sal_valid) | |
984 | return last_displayed_pspace; | |
985 | return 0; | |
986 | } | |
987 | ||
988 | /* Get the address of the last sal we displayed, if it's valid. */ | |
989 | ||
990 | CORE_ADDR | |
991 | get_last_displayed_addr (void) | |
992 | { | |
993 | if (last_displayed_sal_valid) | |
994 | return last_displayed_addr; | |
995 | return 0; | |
996 | } | |
997 | ||
998 | /* Get the symtab of the last sal we displayed, if it's valid. */ | |
999 | ||
1000 | struct symtab* | |
1001 | get_last_displayed_symtab (void) | |
1002 | { | |
1003 | if (last_displayed_sal_valid) | |
1004 | return last_displayed_symtab; | |
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | /* Get the line of the last sal we displayed, if it's valid. */ | |
1009 | ||
1010 | int | |
1011 | get_last_displayed_line (void) | |
1012 | { | |
1013 | if (last_displayed_sal_valid) | |
1014 | return last_displayed_line; | |
1015 | return 0; | |
1016 | } | |
1017 | ||
1018 | /* Get the last sal we displayed, if it's valid. */ | |
1019 | ||
51abb421 PA |
1020 | symtab_and_line |
1021 | get_last_displayed_sal () | |
1bfeeb0f | 1022 | { |
51abb421 PA |
1023 | symtab_and_line sal; |
1024 | ||
1bfeeb0f JL |
1025 | if (last_displayed_sal_valid) |
1026 | { | |
51abb421 PA |
1027 | sal.pspace = last_displayed_pspace; |
1028 | sal.pc = last_displayed_addr; | |
1029 | sal.symtab = last_displayed_symtab; | |
1030 | sal.line = last_displayed_line; | |
1bfeeb0f | 1031 | } |
51abb421 PA |
1032 | |
1033 | return sal; | |
1bfeeb0f JL |
1034 | } |
1035 | ||
1036 | ||
c6dc63a1 TT |
1037 | /* Attempt to obtain the name, FUNLANG and optionally FUNCP of the function |
1038 | corresponding to FRAME. */ | |
e9e07ba6 | 1039 | |
c6dc63a1 TT |
1040 | gdb::unique_xmalloc_ptr<char> |
1041 | find_frame_funname (struct frame_info *frame, enum language *funlang, | |
1042 | struct symbol **funcp) | |
c5394b80 JM |
1043 | { |
1044 | struct symbol *func; | |
c6dc63a1 | 1045 | gdb::unique_xmalloc_ptr<char> funname; |
8b93c638 | 1046 | |
f8f6f20b | 1047 | *funlang = language_unknown; |
e9e07ba6 JK |
1048 | if (funcp) |
1049 | *funcp = NULL; | |
c5394b80 | 1050 | |
edb3359d | 1051 | func = get_frame_function (frame); |
c906108c SS |
1052 | if (func) |
1053 | { | |
1054 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
1055 | function (when we are in the first function in a file which |
1056 | is compiled without debugging symbols, the previous function | |
1057 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
1058 | that is supposed to tell us where the file with debugging |
1059 | symbols ends has been truncated by ar because it is longer | |
1060 | than 15 characters). This also occurs if the user uses asm() | |
1061 | to create a function but not stabs for it (in a file compiled | |
1062 | with -g). | |
c5aa993b JM |
1063 | |
1064 | So look in the minimal symbol tables as well, and if it comes | |
1065 | up with a larger address for the function use that instead. | |
033a42c2 MK |
1066 | I don't think this can ever cause any problems; there |
1067 | shouldn't be any minimal symbols in the middle of a function; | |
1068 | if this is ever changed many parts of GDB will need to be | |
1069 | changed (and we'll create a find_pc_minimal_function or some | |
1070 | such). */ | |
1071 | ||
7cbd4a93 | 1072 | struct bound_minimal_symbol msymbol; |
edb3359d DJ |
1073 | |
1074 | /* Don't attempt to do this for inlined functions, which do not | |
1075 | have a corresponding minimal symbol. */ | |
1076 | if (!block_inlined_p (SYMBOL_BLOCK_VALUE (func))) | |
1077 | msymbol | |
1078 | = lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
7cbd4a93 TT |
1079 | else |
1080 | memset (&msymbol, 0, sizeof (msymbol)); | |
c906108c | 1081 | |
7cbd4a93 | 1082 | if (msymbol.minsym != NULL |
77e371c0 | 1083 | && (BMSYMBOL_VALUE_ADDRESS (msymbol) |
2b1ffcfd | 1084 | > BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (func)))) |
c906108c | 1085 | { |
c906108c SS |
1086 | /* We also don't know anything about the function besides |
1087 | its address and name. */ | |
1088 | func = 0; | |
c6dc63a1 | 1089 | funname.reset (xstrdup (MSYMBOL_PRINT_NAME (msymbol.minsym))); |
efd66ac6 | 1090 | *funlang = MSYMBOL_LANGUAGE (msymbol.minsym); |
c906108c SS |
1091 | } |
1092 | else | |
1093 | { | |
d10153cf TT |
1094 | const char *print_name = SYMBOL_PRINT_NAME (func); |
1095 | ||
f8f6f20b | 1096 | *funlang = SYMBOL_LANGUAGE (func); |
e9e07ba6 JK |
1097 | if (funcp) |
1098 | *funcp = func; | |
f8f6f20b | 1099 | if (*funlang == language_cplus) |
c5aa993b | 1100 | { |
033a42c2 MK |
1101 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
1102 | to display the demangled name that we already have | |
1103 | stored in the symbol table, but we stored a version | |
1104 | with DMGL_PARAMS turned on, and here we don't want to | |
3567439c | 1105 | display parameters. So remove the parameters. */ |
109483d9 | 1106 | funname = cp_remove_params (print_name); |
c5aa993b | 1107 | } |
d10153cf | 1108 | |
c6dc63a1 TT |
1109 | /* If we didn't hit the C++ case above, set *funname |
1110 | here. */ | |
1111 | if (funname == NULL) | |
1112 | funname.reset (xstrdup (print_name)); | |
c906108c SS |
1113 | } |
1114 | } | |
1115 | else | |
1116 | { | |
7cbd4a93 | 1117 | struct bound_minimal_symbol msymbol; |
e3eebbd7 | 1118 | CORE_ADDR pc; |
033a42c2 | 1119 | |
e3eebbd7 | 1120 | if (!get_frame_address_in_block_if_available (frame, &pc)) |
c6dc63a1 | 1121 | return funname; |
e3eebbd7 PA |
1122 | |
1123 | msymbol = lookup_minimal_symbol_by_pc (pc); | |
7cbd4a93 | 1124 | if (msymbol.minsym != NULL) |
c906108c | 1125 | { |
c6dc63a1 | 1126 | funname.reset (xstrdup (MSYMBOL_PRINT_NAME (msymbol.minsym))); |
efd66ac6 | 1127 | *funlang = MSYMBOL_LANGUAGE (msymbol.minsym); |
c906108c SS |
1128 | } |
1129 | } | |
c6dc63a1 TT |
1130 | |
1131 | return funname; | |
f8f6f20b TJB |
1132 | } |
1133 | ||
1134 | static void | |
1135 | print_frame (struct frame_info *frame, int print_level, | |
1136 | enum print_what print_what, int print_args, | |
1137 | struct symtab_and_line sal) | |
1138 | { | |
5af949e3 | 1139 | struct gdbarch *gdbarch = get_frame_arch (frame); |
79a45e25 | 1140 | struct ui_out *uiout = current_uiout; |
f8f6f20b | 1141 | enum language funlang = language_unknown; |
f8f6f20b | 1142 | struct value_print_options opts; |
e9e07ba6 | 1143 | struct symbol *func; |
e3eebbd7 PA |
1144 | CORE_ADDR pc = 0; |
1145 | int pc_p; | |
1146 | ||
1147 | pc_p = get_frame_pc_if_available (frame, &pc); | |
f8f6f20b | 1148 | |
c6dc63a1 TT |
1149 | gdb::unique_xmalloc_ptr<char> funname |
1150 | = find_frame_funname (frame, &funlang, &func); | |
c906108c | 1151 | |
033a42c2 | 1152 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
e3eebbd7 | 1153 | gdbarch, pc); |
c5394b80 | 1154 | |
76f9c9cf TT |
1155 | { |
1156 | ui_out_emit_tuple tuple_emitter (uiout, "frame"); | |
c5394b80 | 1157 | |
76f9c9cf | 1158 | if (print_level) |
c5394b80 | 1159 | { |
76f9c9cf TT |
1160 | uiout->text ("#"); |
1161 | uiout->field_fmt_int (2, ui_left, "level", | |
1162 | frame_relative_level (frame)); | |
c5394b80 | 1163 | } |
76f9c9cf TT |
1164 | get_user_print_options (&opts); |
1165 | if (opts.addressprint) | |
1166 | if (!sal.symtab | |
1167 | || frame_show_address (frame, sal) | |
1168 | || print_what == LOC_AND_ADDRESS) | |
311b5970 | 1169 | { |
76f9c9cf TT |
1170 | annotate_frame_address (); |
1171 | if (pc_p) | |
1172 | uiout->field_core_addr ("addr", gdbarch, pc); | |
1173 | else | |
1174 | uiout->field_string ("addr", "<unavailable>"); | |
1175 | annotate_frame_address_end (); | |
1176 | uiout->text (" in "); | |
311b5970 | 1177 | } |
76f9c9cf TT |
1178 | annotate_frame_function_name (); |
1179 | ||
1180 | string_file stb; | |
c6dc63a1 | 1181 | fprintf_symbol_filtered (&stb, funname ? funname.get () : "??", |
76f9c9cf TT |
1182 | funlang, DMGL_ANSI); |
1183 | uiout->field_stream ("func", stb); | |
1184 | uiout->wrap_hint (" "); | |
1185 | annotate_frame_args (); | |
1186 | ||
1187 | uiout->text (" ("); | |
1188 | if (print_args) | |
10f489e5 | 1189 | { |
76f9c9cf TT |
1190 | int numargs; |
1191 | ||
1192 | if (gdbarch_frame_num_args_p (gdbarch)) | |
10f489e5 | 1193 | { |
76f9c9cf TT |
1194 | numargs = gdbarch_frame_num_args (gdbarch, frame); |
1195 | gdb_assert (numargs >= 0); | |
10f489e5 | 1196 | } |
76f9c9cf TT |
1197 | else |
1198 | numargs = -1; | |
1199 | ||
1200 | { | |
1201 | ui_out_emit_list list_emitter (uiout, "args"); | |
1202 | TRY | |
1203 | { | |
1204 | print_frame_args (func, frame, numargs, gdb_stdout); | |
1205 | } | |
1206 | CATCH (e, RETURN_MASK_ERROR) | |
1207 | { | |
1208 | } | |
1209 | END_CATCH | |
10f489e5 | 1210 | |
76f9c9cf TT |
1211 | /* FIXME: ARGS must be a list. If one argument is a string it |
1212 | will have " that will not be properly escaped. */ | |
1213 | } | |
1214 | QUIT; | |
10f489e5 | 1215 | } |
76f9c9cf TT |
1216 | uiout->text (")"); |
1217 | if (sal.symtab) | |
1218 | { | |
1219 | const char *filename_display; | |
1b56eb55 | 1220 | |
76f9c9cf TT |
1221 | filename_display = symtab_to_filename_for_display (sal.symtab); |
1222 | annotate_frame_source_begin (); | |
1223 | uiout->wrap_hint (" "); | |
1224 | uiout->text (" at "); | |
1225 | annotate_frame_source_file (); | |
1226 | uiout->field_string ("file", filename_display); | |
1227 | if (uiout->is_mi_like_p ()) | |
1228 | { | |
1229 | const char *fullname = symtab_to_fullname (sal.symtab); | |
433759f7 | 1230 | |
76f9c9cf TT |
1231 | uiout->field_string ("fullname", fullname); |
1232 | } | |
1233 | annotate_frame_source_file_end (); | |
1234 | uiout->text (":"); | |
1235 | annotate_frame_source_line (); | |
1236 | uiout->field_int ("line", sal.line); | |
1237 | annotate_frame_source_end (); | |
1238 | } | |
c906108c | 1239 | |
76f9c9cf TT |
1240 | if (pc_p && (funname == NULL || sal.symtab == NULL)) |
1241 | { | |
1242 | char *lib = solib_name_from_address (get_frame_program_space (frame), | |
1243 | get_frame_pc (frame)); | |
4d1eb6b4 | 1244 | |
76f9c9cf TT |
1245 | if (lib) |
1246 | { | |
1247 | annotate_frame_where (); | |
1248 | uiout->wrap_hint (" "); | |
1249 | uiout->text (" from "); | |
1250 | uiout->field_string ("from", lib); | |
1251 | } | |
1252 | } | |
6d52907e JV |
1253 | if (uiout->is_mi_like_p ()) |
1254 | uiout->field_string ("arch", | |
1255 | (gdbarch_bfd_arch_info (gdbarch))->printable_name); | |
76f9c9cf | 1256 | } |
e514a9d6 | 1257 | |
112e8700 | 1258 | uiout->text ("\n"); |
c906108c SS |
1259 | } |
1260 | \f | |
c5aa993b | 1261 | |
f67ffa6a AB |
1262 | /* Completion function for "frame function", "info frame function", and |
1263 | "select-frame function" commands. */ | |
c906108c | 1264 | |
f67ffa6a AB |
1265 | void |
1266 | frame_selection_by_function_completer (struct cmd_list_element *ignore, | |
1267 | completion_tracker &tracker, | |
1268 | const char *text, const char *word) | |
c906108c | 1269 | { |
f67ffa6a AB |
1270 | /* This is used to complete function names within a stack. It would be |
1271 | nice if we only offered functions that were actually in the stack. | |
1272 | However, this would mean unwinding the stack to completion, which | |
1273 | could take too long, or on a corrupted stack, possibly not end. | |
1274 | Instead, we offer all symbol names as a safer choice. */ | |
1275 | collect_symbol_completion_matches (tracker, | |
1276 | complete_symbol_mode::EXPRESSION, | |
1277 | symbol_name_match_type::EXPRESSION, | |
1278 | text, word); | |
1c8831c5 AC |
1279 | } |
1280 | ||
f67ffa6a AB |
1281 | /* Core of all the "info frame" sub-commands. Print information about a |
1282 | frame FI. If SELECTED_FRAME_P is true then the user didn't provide a | |
1283 | frame specification, they just entered 'info frame'. If the user did | |
1284 | provide a frame specification (for example 'info frame 0', 'info frame | |
1285 | level 1') then SELECTED_FRAME_P will be false. */ | |
c906108c SS |
1286 | |
1287 | static void | |
f67ffa6a | 1288 | info_frame_command_core (struct frame_info *fi, bool selected_frame_p) |
c906108c | 1289 | { |
c906108c SS |
1290 | struct symbol *func; |
1291 | struct symtab *s; | |
1292 | struct frame_info *calling_frame_info; | |
167e4384 | 1293 | int numregs; |
0d5cff50 | 1294 | const char *funname = 0; |
c906108c | 1295 | enum language funlang = language_unknown; |
82de1e5b | 1296 | const char *pc_regname; |
7500260a | 1297 | struct gdbarch *gdbarch; |
008f8f2e PA |
1298 | CORE_ADDR frame_pc; |
1299 | int frame_pc_p; | |
e5e6f788 YQ |
1300 | /* Initialize it to avoid "may be used uninitialized" warning. */ |
1301 | CORE_ADDR caller_pc = 0; | |
492d29ea | 1302 | int caller_pc_p = 0; |
c906108c | 1303 | |
12368003 | 1304 | gdbarch = get_frame_arch (fi); |
c906108c | 1305 | |
82de1e5b AC |
1306 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
1307 | is not a good name. */ | |
12368003 | 1308 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 1309 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
1310 | easily not match that of the internal value returned by |
1311 | get_frame_pc(). */ | |
12368003 | 1312 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 1313 | else |
3e8c568d | 1314 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
1315 | architectures will often have a hardware register called "pc", |
1316 | and that register's value, again, can easily not match | |
1317 | get_frame_pc(). */ | |
1318 | pc_regname = "pc"; | |
1319 | ||
008f8f2e | 1320 | frame_pc_p = get_frame_pc_if_available (fi, &frame_pc); |
c906108c | 1321 | func = get_frame_function (fi); |
51abb421 | 1322 | symtab_and_line sal = find_frame_sal (fi); |
008f8f2e | 1323 | s = sal.symtab; |
2003f3d8 | 1324 | gdb::unique_xmalloc_ptr<char> func_only; |
c906108c SS |
1325 | if (func) |
1326 | { | |
3567439c | 1327 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b JM |
1328 | funlang = SYMBOL_LANGUAGE (func); |
1329 | if (funlang == language_cplus) | |
1330 | { | |
3567439c DJ |
1331 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
1332 | to display the demangled name that we already have | |
1333 | stored in the symbol table, but we stored a version | |
1334 | with DMGL_PARAMS turned on, and here we don't want to | |
1335 | display parameters. So remove the parameters. */ | |
109483d9 | 1336 | func_only = cp_remove_params (funname); |
433759f7 | 1337 | |
3567439c | 1338 | if (func_only) |
2003f3d8 | 1339 | funname = func_only.get (); |
c5aa993b | 1340 | } |
c906108c | 1341 | } |
008f8f2e | 1342 | else if (frame_pc_p) |
c906108c | 1343 | { |
7cbd4a93 | 1344 | struct bound_minimal_symbol msymbol; |
033a42c2 | 1345 | |
008f8f2e | 1346 | msymbol = lookup_minimal_symbol_by_pc (frame_pc); |
7cbd4a93 | 1347 | if (msymbol.minsym != NULL) |
c906108c | 1348 | { |
efd66ac6 TT |
1349 | funname = MSYMBOL_PRINT_NAME (msymbol.minsym); |
1350 | funlang = MSYMBOL_LANGUAGE (msymbol.minsym); | |
c906108c SS |
1351 | } |
1352 | } | |
1353 | calling_frame_info = get_prev_frame (fi); | |
1354 | ||
1c8831c5 | 1355 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 1356 | { |
a3f17187 | 1357 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 1358 | frame_relative_level (fi)); |
c906108c SS |
1359 | } |
1360 | else | |
1361 | { | |
a3f17187 | 1362 | printf_filtered (_("Stack frame at ")); |
c906108c | 1363 | } |
5af949e3 | 1364 | fputs_filtered (paddress (gdbarch, get_frame_base (fi)), gdb_stdout); |
9c833c82 | 1365 | printf_filtered (":\n"); |
82de1e5b | 1366 | printf_filtered (" %s = ", pc_regname); |
008f8f2e PA |
1367 | if (frame_pc_p) |
1368 | fputs_filtered (paddress (gdbarch, get_frame_pc (fi)), gdb_stdout); | |
1369 | else | |
1370 | fputs_filtered ("<unavailable>", gdb_stdout); | |
c906108c SS |
1371 | |
1372 | wrap_here (" "); | |
1373 | if (funname) | |
1374 | { | |
1375 | printf_filtered (" in "); | |
1376 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
1377 | DMGL_ANSI | DMGL_PARAMS); | |
1378 | } | |
1379 | wrap_here (" "); | |
1380 | if (sal.symtab) | |
05cba821 JK |
1381 | printf_filtered (" (%s:%d)", symtab_to_filename_for_display (sal.symtab), |
1382 | sal.line); | |
c906108c SS |
1383 | puts_filtered ("; "); |
1384 | wrap_here (" "); | |
782d47df PA |
1385 | printf_filtered ("saved %s = ", pc_regname); |
1386 | ||
a038fa3e | 1387 | if (!frame_id_p (frame_unwind_caller_id (fi))) |
c620c3e4 | 1388 | val_print_not_saved (gdb_stdout); |
a038fa3e | 1389 | else |
782d47df | 1390 | { |
a038fa3e | 1391 | TRY |
782d47df | 1392 | { |
a038fa3e MM |
1393 | caller_pc = frame_unwind_caller_pc (fi); |
1394 | caller_pc_p = 1; | |
782d47df | 1395 | } |
a038fa3e MM |
1396 | CATCH (ex, RETURN_MASK_ERROR) |
1397 | { | |
1398 | switch (ex.error) | |
1399 | { | |
1400 | case NOT_AVAILABLE_ERROR: | |
1401 | val_print_unavailable (gdb_stdout); | |
1402 | break; | |
1403 | case OPTIMIZED_OUT_ERROR: | |
1404 | val_print_not_saved (gdb_stdout); | |
1405 | break; | |
1406 | default: | |
1407 | fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message); | |
1408 | break; | |
1409 | } | |
1410 | } | |
1411 | END_CATCH | |
782d47df | 1412 | } |
492d29ea PA |
1413 | |
1414 | if (caller_pc_p) | |
782d47df | 1415 | fputs_filtered (paddress (gdbarch, caller_pc), gdb_stdout); |
c906108c SS |
1416 | printf_filtered ("\n"); |
1417 | ||
55feb689 DJ |
1418 | if (calling_frame_info == NULL) |
1419 | { | |
1420 | enum unwind_stop_reason reason; | |
1421 | ||
1422 | reason = get_frame_unwind_stop_reason (fi); | |
1423 | if (reason != UNWIND_NO_REASON) | |
1424 | printf_filtered (_(" Outermost frame: %s\n"), | |
53e8a631 | 1425 | frame_stop_reason_string (fi)); |
55feb689 | 1426 | } |
111c6489 JK |
1427 | else if (get_frame_type (fi) == TAILCALL_FRAME) |
1428 | puts_filtered (" tail call frame"); | |
edb3359d DJ |
1429 | else if (get_frame_type (fi) == INLINE_FRAME) |
1430 | printf_filtered (" inlined into frame %d", | |
1431 | frame_relative_level (get_prev_frame (fi))); | |
1432 | else | |
c906108c SS |
1433 | { |
1434 | printf_filtered (" called by frame at "); | |
5af949e3 | 1435 | fputs_filtered (paddress (gdbarch, get_frame_base (calling_frame_info)), |
ed49a04f | 1436 | gdb_stdout); |
c906108c | 1437 | } |
75e3c1f9 | 1438 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
1439 | puts_filtered (","); |
1440 | wrap_here (" "); | |
75e3c1f9 | 1441 | if (get_next_frame (fi)) |
c906108c SS |
1442 | { |
1443 | printf_filtered (" caller of frame at "); | |
5af949e3 | 1444 | fputs_filtered (paddress (gdbarch, get_frame_base (get_next_frame (fi))), |
ed49a04f | 1445 | gdb_stdout); |
c906108c | 1446 | } |
75e3c1f9 | 1447 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1448 | puts_filtered ("\n"); |
55feb689 | 1449 | |
c906108c | 1450 | if (s) |
1058bca7 AC |
1451 | printf_filtered (" source language %s.\n", |
1452 | language_str (s->language)); | |
c906108c | 1453 | |
c906108c SS |
1454 | { |
1455 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1456 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1457 | /* Number of args for this frame, or -1 if unknown. */ |
1458 | int numargs; | |
1459 | ||
1460 | if (arg_list == 0) | |
1461 | printf_filtered (" Arglist at unknown address.\n"); | |
1462 | else | |
1463 | { | |
1464 | printf_filtered (" Arglist at "); | |
5af949e3 | 1465 | fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout); |
c906108c SS |
1466 | printf_filtered (","); |
1467 | ||
7500260a | 1468 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1469 | { |
1470 | numargs = -1; | |
1471 | puts_filtered (" args: "); | |
1472 | } | |
c906108c | 1473 | else |
983a287a | 1474 | { |
7500260a | 1475 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1476 | gdb_assert (numargs >= 0); |
1477 | if (numargs == 0) | |
1478 | puts_filtered (" no args."); | |
1479 | else if (numargs == 1) | |
1480 | puts_filtered (" 1 arg: "); | |
1481 | else | |
1482 | printf_filtered (" %d args: ", numargs); | |
1483 | } | |
c906108c SS |
1484 | print_frame_args (func, fi, numargs, gdb_stdout); |
1485 | puts_filtered ("\n"); | |
1486 | } | |
1487 | } | |
1488 | { | |
1489 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1490 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1491 | |
1492 | if (arg_list == 0) | |
1493 | printf_filtered (" Locals at unknown address,"); | |
1494 | else | |
1495 | { | |
1496 | printf_filtered (" Locals at "); | |
5af949e3 | 1497 | fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout); |
c906108c SS |
1498 | printf_filtered (","); |
1499 | } | |
1500 | } | |
1501 | ||
4f460812 AC |
1502 | /* Print as much information as possible on the location of all the |
1503 | registers. */ | |
1504 | { | |
4f460812 AC |
1505 | int count; |
1506 | int i; | |
1507 | int need_nl = 1; | |
b0e4b369 | 1508 | int sp_regnum = gdbarch_sp_regnum (gdbarch); |
4f460812 AC |
1509 | |
1510 | /* The sp is special; what's displayed isn't the save address, but | |
1511 | the value of the previous frame's sp. This is a legacy thing, | |
1512 | at one stage the frame cached the previous frame's SP instead | |
1513 | of its address, hence it was easiest to just display the cached | |
1514 | value. */ | |
b0e4b369 | 1515 | if (sp_regnum >= 0) |
4f460812 | 1516 | { |
b0e4b369 AH |
1517 | struct value *value = frame_unwind_register_value (fi, sp_regnum); |
1518 | gdb_assert (value != NULL); | |
1519 | ||
1520 | if (!value_optimized_out (value) && value_entirely_available (value)) | |
4f460812 | 1521 | { |
b0e4b369 AH |
1522 | if (VALUE_LVAL (value) == not_lval) |
1523 | { | |
1524 | CORE_ADDR sp; | |
1525 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1526 | int sp_size = register_size (gdbarch, sp_regnum); | |
1527 | ||
1528 | sp = extract_unsigned_integer (value_contents_all (value), | |
1529 | sp_size, byte_order); | |
1530 | ||
1531 | printf_filtered (" Previous frame's sp is "); | |
1532 | fputs_filtered (paddress (gdbarch, sp), gdb_stdout); | |
1533 | printf_filtered ("\n"); | |
1534 | } | |
1535 | else if (VALUE_LVAL (value) == lval_memory) | |
1536 | { | |
1537 | printf_filtered (" Previous frame's sp at "); | |
1538 | fputs_filtered (paddress (gdbarch, value_address (value)), | |
1539 | gdb_stdout); | |
1540 | printf_filtered ("\n"); | |
1541 | } | |
1542 | else if (VALUE_LVAL (value) == lval_register) | |
1543 | { | |
1544 | printf_filtered (" Previous frame's sp in %s\n", | |
1545 | gdbarch_register_name (gdbarch, | |
1546 | VALUE_REGNUM (value))); | |
1547 | } | |
1548 | ||
1549 | release_value (value); | |
4f460812 AC |
1550 | need_nl = 0; |
1551 | } | |
1552 | /* else keep quiet. */ | |
1553 | } | |
1554 | ||
1555 | count = 0; | |
7500260a UW |
1556 | numregs = gdbarch_num_regs (gdbarch) |
1557 | + gdbarch_num_pseudo_regs (gdbarch); | |
4f460812 | 1558 | for (i = 0; i < numregs; i++) |
b0e4b369 | 1559 | if (i != sp_regnum |
7500260a | 1560 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4f460812 | 1561 | { |
b0e4b369 AH |
1562 | enum lval_type lval; |
1563 | int optimized; | |
1564 | int unavailable; | |
1565 | CORE_ADDR addr; | |
1566 | int realnum; | |
1567 | ||
4f460812 AC |
1568 | /* Find out the location of the saved register without |
1569 | fetching the corresponding value. */ | |
0fdb4f18 PA |
1570 | frame_register_unwind (fi, i, &optimized, &unavailable, |
1571 | &lval, &addr, &realnum, NULL); | |
4f460812 AC |
1572 | /* For moment, only display registers that were saved on the |
1573 | stack. */ | |
0fdb4f18 | 1574 | if (!optimized && !unavailable && lval == lval_memory) |
4f460812 AC |
1575 | { |
1576 | if (count == 0) | |
1577 | puts_filtered (" Saved registers:\n "); | |
1578 | else | |
1579 | puts_filtered (","); | |
1580 | wrap_here (" "); | |
c9f4d572 | 1581 | printf_filtered (" %s at ", |
7500260a | 1582 | gdbarch_register_name (gdbarch, i)); |
5af949e3 | 1583 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
4f460812 AC |
1584 | count++; |
1585 | } | |
1586 | } | |
1587 | if (count || need_nl) | |
c906108c | 1588 | puts_filtered ("\n"); |
4f460812 | 1589 | } |
c906108c SS |
1590 | } |
1591 | ||
6a70eb7d PW |
1592 | /* Return the innermost frame at level LEVEL. */ |
1593 | ||
1594 | static struct frame_info * | |
1595 | leading_innermost_frame (int level) | |
1596 | { | |
1597 | struct frame_info *leading; | |
1598 | ||
1599 | leading = get_current_frame (); | |
1600 | ||
1601 | gdb_assert (level >= 0); | |
1602 | ||
1603 | while (leading != nullptr && level) | |
1604 | { | |
1605 | QUIT; | |
1606 | leading = get_prev_frame (leading); | |
1607 | level--; | |
1608 | } | |
1609 | ||
1610 | return leading; | |
1611 | } | |
1612 | ||
1613 | /* Return the starting frame needed to handle COUNT outermost frames. */ | |
1614 | ||
1615 | static struct frame_info * | |
1616 | trailing_outermost_frame (int count) | |
1617 | { | |
1618 | struct frame_info *current; | |
1619 | struct frame_info *trailing; | |
1620 | ||
1621 | trailing = get_current_frame (); | |
1622 | ||
1623 | gdb_assert (count > 0); | |
1624 | ||
1625 | current = trailing; | |
1626 | while (current != nullptr && count--) | |
1627 | { | |
1628 | QUIT; | |
1629 | current = get_prev_frame (current); | |
1630 | } | |
1631 | ||
1632 | /* Will stop when CURRENT reaches the top of the stack. | |
1633 | TRAILING will be COUNT below it. */ | |
1634 | while (current != nullptr) | |
1635 | { | |
1636 | QUIT; | |
1637 | trailing = get_prev_frame (trailing); | |
1638 | current = get_prev_frame (current); | |
1639 | } | |
1640 | ||
1641 | return trailing; | |
1642 | } | |
1643 | ||
f67ffa6a AB |
1644 | /* The core of all the "select-frame" sub-commands. Just wraps a call to |
1645 | SELECT_FRAME. */ | |
1646 | ||
1647 | static void | |
1648 | select_frame_command_core (struct frame_info *fi, bool ignored) | |
1649 | { | |
1650 | struct frame_info *prev_frame = get_selected_frame_if_set (); | |
1651 | select_frame (fi); | |
1652 | if (get_selected_frame_if_set () != prev_frame) | |
1653 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); | |
1654 | } | |
1655 | ||
1656 | /* See stack.h. */ | |
1657 | ||
1658 | void | |
1659 | select_frame_for_mi (struct frame_info *fi) | |
1660 | { | |
1661 | select_frame_command_core (fi, FALSE /* Ignored. */); | |
1662 | } | |
1663 | ||
1664 | /* The core of all the "frame" sub-commands. Select frame FI, and if this | |
1665 | means we change frame send out a change notification (otherwise, just | |
1666 | reprint the current frame summary). */ | |
1667 | ||
1668 | static void | |
1669 | frame_command_core (struct frame_info *fi, bool ignored) | |
1670 | { | |
1671 | struct frame_info *prev_frame = get_selected_frame_if_set (); | |
1672 | ||
1673 | select_frame (fi); | |
1674 | if (get_selected_frame_if_set () != prev_frame) | |
1675 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); | |
1676 | else | |
1677 | print_selected_thread_frame (current_uiout, USER_SELECTED_FRAME); | |
1678 | } | |
1679 | ||
1680 | /* The three commands 'frame', 'select-frame', and 'info frame' all have a | |
1681 | common set of sub-commands that allow a specific frame to be selected. | |
1682 | All of the sub-command functions are static methods within this class | |
1683 | template which is then instantiated below. The template parameter is a | |
1684 | callback used to implement the functionality of the base command | |
1685 | ('frame', 'select-frame', or 'info frame'). | |
1686 | ||
1687 | In the template parameter FI is the frame being selected. The | |
1688 | SELECTED_FRAME_P flag is true if the frame being selected was done by | |
1689 | default, which happens when the user uses the base command with no | |
1690 | arguments. For example the commands 'info frame', 'select-frame', | |
1691 | 'frame' will all cause SELECTED_FRAME_P to be true. In all other cases | |
1692 | SELECTED_FRAME_P is false. */ | |
1693 | ||
1694 | template <void (*FPTR) (struct frame_info *fi, bool selected_frame_p)> | |
1695 | class frame_command_helper | |
1696 | { | |
1697 | public: | |
1698 | ||
1699 | /* The "frame level" family of commands. The ARG is an integer that is | |
1700 | the frame's level in the stack. */ | |
1701 | static void | |
1702 | level (const char *arg, int from_tty) | |
1703 | { | |
1704 | int level = value_as_long (parse_and_eval (arg)); | |
1705 | struct frame_info *fid | |
1706 | = find_relative_frame (get_current_frame (), &level); | |
1707 | if (level != 0) | |
1708 | error (_("No frame at level %s."), arg); | |
1709 | FPTR (fid, false); | |
1710 | } | |
1711 | ||
1712 | /* The "frame address" family of commands. ARG is a stack-pointer | |
1713 | address for an existing frame. This command does not allow new | |
1714 | frames to be created. */ | |
1715 | ||
1716 | static void | |
1717 | address (const char *arg, int from_tty) | |
1718 | { | |
1719 | CORE_ADDR addr = value_as_address (parse_and_eval (arg)); | |
1720 | struct frame_info *fid = find_frame_for_address (addr); | |
1721 | if (fid == NULL) | |
1722 | error (_("No frame at address %s."), arg); | |
1723 | FPTR (fid, false); | |
1724 | } | |
1725 | ||
1726 | /* The "frame view" family of commands. ARG is one or two addresses and | |
1727 | is used to view a frame that might be outside the current backtrace. | |
1728 | The addresses are stack-pointer address, and (optional) pc-address. */ | |
1729 | ||
1730 | static void | |
1731 | view (const char *args, int from_tty) | |
1732 | { | |
1733 | struct frame_info *fid; | |
1734 | ||
1735 | if (args == NULL) | |
1736 | error (_("Missing address argument to view a frame")); | |
1737 | ||
1738 | gdb_argv argv (args); | |
1739 | ||
1740 | if (argv.count () == 2) | |
1741 | { | |
1742 | CORE_ADDR addr[2]; | |
1743 | ||
1744 | addr [0] = value_as_address (parse_and_eval (argv[0])); | |
1745 | addr [1] = value_as_address (parse_and_eval (argv[1])); | |
1746 | fid = create_new_frame (addr[0], addr[1]); | |
1747 | } | |
1748 | else | |
1749 | { | |
1750 | CORE_ADDR addr = value_as_address (parse_and_eval (argv[0])); | |
1751 | fid = create_new_frame (addr, false); | |
1752 | } | |
1753 | FPTR (fid, false); | |
1754 | } | |
1755 | ||
1756 | /* The "frame function" family of commands. ARG is the name of a | |
1757 | function within the stack, the first function (searching from frame | |
1758 | 0) with that name will be selected. */ | |
1759 | ||
1760 | static void | |
1761 | function (const char *arg, int from_tty) | |
1762 | { | |
1763 | if (arg == NULL) | |
1764 | error (_("Missing function name argument")); | |
1765 | struct frame_info *fid = find_frame_for_function (arg); | |
1766 | if (fid == NULL) | |
1767 | error (_("No frame for function \"%s\"."), arg); | |
1768 | FPTR (fid, false); | |
1769 | } | |
1770 | ||
1771 | /* The "frame" base command, that is, when no sub-command is specified. | |
1772 | If one argument is provided then we assume that this is a frame's | |
1773 | level as historically, this was the supported command syntax that was | |
1774 | used most often. | |
1775 | ||
1776 | If no argument is provided, then the current frame is selected. */ | |
1777 | ||
1778 | static void | |
1779 | base_command (const char *arg, int from_tty) | |
1780 | { | |
1781 | if (arg == NULL) | |
1782 | FPTR (get_selected_frame (_("No stack.")), true); | |
1783 | else | |
1784 | level (arg, from_tty); | |
1785 | } | |
1786 | }; | |
1787 | ||
1788 | /* Instantiate three FRAME_COMMAND_HELPER instances to implement the | |
1789 | sub-commands for 'info frame', 'frame', and 'select-frame' commands. */ | |
1790 | ||
1791 | static frame_command_helper <info_frame_command_core> info_frame_cmd; | |
1792 | static frame_command_helper <frame_command_core> frame_cmd; | |
1793 | static frame_command_helper <select_frame_command_core> select_frame_cmd; | |
1794 | ||
033a42c2 MK |
1795 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1796 | frames. */ | |
c906108c SS |
1797 | |
1798 | static void | |
1cf7e640 TT |
1799 | backtrace_command_1 (const char *count_exp, frame_filter_flags flags, |
1800 | int no_filters, int from_tty) | |
c906108c SS |
1801 | { |
1802 | struct frame_info *fi; | |
52f0bd74 | 1803 | int count; |
fb7eb8b5 | 1804 | int py_start = 0, py_end = 0; |
6dddc817 | 1805 | enum ext_lang_bt_status result = EXT_LANG_BT_ERROR; |
c906108c SS |
1806 | |
1807 | if (!target_has_stack) | |
8a3fe4f8 | 1808 | error (_("No stack.")); |
c906108c | 1809 | |
c906108c SS |
1810 | if (count_exp) |
1811 | { | |
bb518678 | 1812 | count = parse_and_eval_long (count_exp); |
c906108c | 1813 | if (count < 0) |
fb7eb8b5 | 1814 | py_start = count; |
1e611234 PM |
1815 | else |
1816 | { | |
1817 | py_start = 0; | |
6893c19a TT |
1818 | /* The argument to apply_ext_lang_frame_filter is the number |
1819 | of the final frame to print, and frames start at 0. */ | |
1820 | py_end = count - 1; | |
1e611234 | 1821 | } |
c906108c SS |
1822 | } |
1823 | else | |
1e611234 PM |
1824 | { |
1825 | py_end = -1; | |
1826 | count = -1; | |
1827 | } | |
c906108c | 1828 | |
1e611234 | 1829 | if (! no_filters) |
c906108c | 1830 | { |
6dddc817 | 1831 | enum ext_lang_frame_args arg_type; |
c906108c | 1832 | |
1cf7e640 | 1833 | flags |= PRINT_LEVEL | PRINT_FRAME_INFO | PRINT_ARGS; |
6893c19a TT |
1834 | if (from_tty) |
1835 | flags |= PRINT_MORE_FRAMES; | |
1e611234 PM |
1836 | |
1837 | if (!strcmp (print_frame_arguments, "scalars")) | |
1838 | arg_type = CLI_SCALAR_VALUES; | |
1839 | else if (!strcmp (print_frame_arguments, "all")) | |
1840 | arg_type = CLI_ALL_VALUES; | |
1841 | else | |
1842 | arg_type = NO_VALUES; | |
1843 | ||
6dddc817 DE |
1844 | result = apply_ext_lang_frame_filter (get_current_frame (), flags, |
1845 | arg_type, current_uiout, | |
1846 | py_start, py_end); | |
1e611234 | 1847 | } |
6dddc817 | 1848 | |
1e611234 PM |
1849 | /* Run the inbuilt backtrace if there are no filters registered, or |
1850 | "no-filters" has been specified from the command. */ | |
6dddc817 | 1851 | if (no_filters || result == EXT_LANG_BT_NO_FILTERS) |
1e611234 | 1852 | { |
fb7eb8b5 TT |
1853 | struct frame_info *trailing; |
1854 | ||
1855 | /* The following code must do two things. First, it must set the | |
1856 | variable TRAILING to the frame from which we should start | |
1857 | printing. Second, it must set the variable count to the number | |
1858 | of frames which we should print, or -1 if all of them. */ | |
fb7eb8b5 TT |
1859 | |
1860 | if (count_exp != NULL && count < 0) | |
1861 | { | |
6a70eb7d | 1862 | trailing = trailing_outermost_frame (-count); |
fb7eb8b5 TT |
1863 | count = -1; |
1864 | } | |
6a70eb7d PW |
1865 | else |
1866 | trailing = get_current_frame (); | |
fb7eb8b5 | 1867 | |
59f66be3 | 1868 | for (fi = trailing; fi && count--; fi = get_prev_frame (fi)) |
1e611234 PM |
1869 | { |
1870 | QUIT; | |
1871 | ||
1872 | /* Don't use print_stack_frame; if an error() occurs it probably | |
1873 | means further attempts to backtrace would fail (on the other | |
1874 | hand, perhaps the code does or could be fixed to make sure | |
1875 | the frame->prev field gets set to NULL in that case). */ | |
1876 | ||
08d72866 | 1877 | print_frame_info (fi, 1, LOCATION, 1, 0); |
1cf7e640 | 1878 | if ((flags & PRINT_LOCALS) != 0) |
d0548fa2 PM |
1879 | { |
1880 | struct frame_id frame_id = get_frame_id (fi); | |
8f043999 | 1881 | |
d0548fa2 | 1882 | print_frame_local_vars (fi, 1, gdb_stdout); |
8f043999 | 1883 | |
d0548fa2 PM |
1884 | /* print_frame_local_vars invalidates FI. */ |
1885 | fi = frame_find_by_id (frame_id); | |
1886 | if (fi == NULL) | |
1887 | { | |
1888 | trailing = NULL; | |
1889 | warning (_("Unable to restore previously selected frame.")); | |
1890 | break; | |
1891 | } | |
8f043999 | 1892 | } |
55feb689 | 1893 | |
1e611234 PM |
1894 | /* Save the last frame to check for error conditions. */ |
1895 | trailing = fi; | |
1896 | } | |
c906108c | 1897 | |
1e611234 PM |
1898 | /* If we've stopped before the end, mention that. */ |
1899 | if (fi && from_tty) | |
1900 | printf_filtered (_("(More stack frames follow...)\n")); | |
55feb689 | 1901 | |
1e611234 PM |
1902 | /* If we've run out of frames, and the reason appears to be an error |
1903 | condition, print it. */ | |
1904 | if (fi == NULL && trailing != NULL) | |
1905 | { | |
1906 | enum unwind_stop_reason reason; | |
55feb689 | 1907 | |
1e611234 PM |
1908 | reason = get_frame_unwind_stop_reason (trailing); |
1909 | if (reason >= UNWIND_FIRST_ERROR) | |
1910 | printf_filtered (_("Backtrace stopped: %s\n"), | |
53e8a631 | 1911 | frame_stop_reason_string (trailing)); |
1e611234 | 1912 | } |
55feb689 | 1913 | } |
c906108c SS |
1914 | } |
1915 | ||
1916 | static void | |
0b39b52e | 1917 | backtrace_command (const char *arg, int from_tty) |
c906108c | 1918 | { |
ea3b0687 | 1919 | bool filters = true; |
1cf7e640 | 1920 | frame_filter_flags flags = 0; |
c906108c | 1921 | |
033a42c2 | 1922 | if (arg) |
c906108c | 1923 | { |
ea3b0687 | 1924 | bool done = false; |
c906108c | 1925 | |
ea3b0687 | 1926 | while (!done) |
c5aa993b | 1927 | { |
ea3b0687 TT |
1928 | const char *save_arg = arg; |
1929 | std::string this_arg = extract_arg (&arg); | |
c5aa993b | 1930 | |
ea3b0687 TT |
1931 | if (this_arg.empty ()) |
1932 | break; | |
c5aa993b | 1933 | |
ea3b0687 TT |
1934 | if (subset_compare (this_arg.c_str (), "no-filters")) |
1935 | filters = false; | |
1936 | else if (subset_compare (this_arg.c_str (), "full")) | |
1cf7e640 | 1937 | flags |= PRINT_LOCALS; |
978d6c75 TT |
1938 | else if (subset_compare (this_arg.c_str (), "hide")) |
1939 | flags |= PRINT_HIDE; | |
c5aa993b JM |
1940 | else |
1941 | { | |
ea3b0687 TT |
1942 | /* Not a recognized argument, so stop. */ |
1943 | arg = save_arg; | |
1944 | done = true; | |
c5aa993b | 1945 | } |
c5aa993b | 1946 | } |
ea3b0687 TT |
1947 | |
1948 | if (*arg == '\0') | |
1949 | arg = NULL; | |
c906108c SS |
1950 | } |
1951 | ||
1cf7e640 | 1952 | backtrace_command_1 (arg, flags, !filters /* no frame-filters */, from_tty); |
c906108c SS |
1953 | } |
1954 | ||
2c58c0a9 PA |
1955 | /* Iterate over the local variables of a block B, calling CB with |
1956 | CB_DATA. */ | |
c906108c | 1957 | |
2c58c0a9 | 1958 | static void |
3977b71f | 1959 | iterate_over_block_locals (const struct block *b, |
2c58c0a9 PA |
1960 | iterate_over_block_arg_local_vars_cb cb, |
1961 | void *cb_data) | |
c906108c | 1962 | { |
8157b174 | 1963 | struct block_iterator iter; |
de4f826b | 1964 | struct symbol *sym; |
c906108c | 1965 | |
de4f826b | 1966 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1967 | { |
c906108c SS |
1968 | switch (SYMBOL_CLASS (sym)) |
1969 | { | |
1970 | case LOC_LOCAL: | |
1971 | case LOC_REGISTER: | |
1972 | case LOC_STATIC: | |
4c2df51b | 1973 | case LOC_COMPUTED: |
41bd68f5 | 1974 | case LOC_OPTIMIZED_OUT: |
2a2d4dc3 AS |
1975 | if (SYMBOL_IS_ARGUMENT (sym)) |
1976 | break; | |
4357ac6c TT |
1977 | if (SYMBOL_DOMAIN (sym) == COMMON_BLOCK_DOMAIN) |
1978 | break; | |
2c58c0a9 | 1979 | (*cb) (SYMBOL_PRINT_NAME (sym), sym, cb_data); |
c906108c SS |
1980 | break; |
1981 | ||
1982 | default: | |
1983 | /* Ignore symbols which are not locals. */ | |
1984 | break; | |
1985 | } | |
1986 | } | |
c906108c SS |
1987 | } |
1988 | ||
65c06092 | 1989 | |
c906108c SS |
1990 | /* Same, but print labels. */ |
1991 | ||
65c06092 JB |
1992 | #if 0 |
1993 | /* Commented out, as the code using this function has also been | |
1994 | commented out. FIXME:brobecker/2009-01-13: Find out why the code | |
1995 | was commented out in the first place. The discussion introducing | |
1996 | this change (2007-12-04: Support lexical blocks and function bodies | |
1997 | that occupy non-contiguous address ranges) did not explain why | |
1998 | this change was made. */ | |
c906108c | 1999 | static int |
5af949e3 UW |
2000 | print_block_frame_labels (struct gdbarch *gdbarch, struct block *b, |
2001 | int *have_default, struct ui_file *stream) | |
c906108c | 2002 | { |
8157b174 | 2003 | struct block_iterator iter; |
52f0bd74 AC |
2004 | struct symbol *sym; |
2005 | int values_printed = 0; | |
c906108c | 2006 | |
de4f826b | 2007 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 2008 | { |
3567439c | 2009 | if (strcmp (SYMBOL_LINKAGE_NAME (sym), "default") == 0) |
c906108c SS |
2010 | { |
2011 | if (*have_default) | |
2012 | continue; | |
2013 | *have_default = 1; | |
2014 | } | |
2015 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
2016 | { | |
2017 | struct symtab_and_line sal; | |
79a45b7d | 2018 | struct value_print_options opts; |
433759f7 | 2019 | |
c906108c SS |
2020 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); |
2021 | values_printed = 1; | |
de5ad195 | 2022 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
79a45b7d TT |
2023 | get_user_print_options (&opts); |
2024 | if (opts.addressprint) | |
c906108c SS |
2025 | { |
2026 | fprintf_filtered (stream, " "); | |
5af949e3 UW |
2027 | fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (sym)), |
2028 | stream); | |
c906108c SS |
2029 | } |
2030 | fprintf_filtered (stream, " in file %s, line %d\n", | |
2031 | sal.symtab->filename, sal.line); | |
2032 | } | |
2033 | } | |
033a42c2 | 2034 | |
c906108c SS |
2035 | return values_printed; |
2036 | } | |
65c06092 | 2037 | #endif |
c906108c | 2038 | |
2c58c0a9 PA |
2039 | /* Iterate over all the local variables in block B, including all its |
2040 | superblocks, stopping when the top-level block is reached. */ | |
2041 | ||
2042 | void | |
3977b71f | 2043 | iterate_over_block_local_vars (const struct block *block, |
2c58c0a9 PA |
2044 | iterate_over_block_arg_local_vars_cb cb, |
2045 | void *cb_data) | |
2046 | { | |
2047 | while (block) | |
2048 | { | |
2049 | iterate_over_block_locals (block, cb, cb_data); | |
2050 | /* After handling the function's top-level block, stop. Don't | |
2051 | continue to its superblock, the block of per-file | |
2052 | symbols. */ | |
2053 | if (BLOCK_FUNCTION (block)) | |
2054 | break; | |
2055 | block = BLOCK_SUPERBLOCK (block); | |
2056 | } | |
2057 | } | |
2058 | ||
2059 | /* Data to be passed around in the calls to the locals and args | |
2060 | iterators. */ | |
c906108c | 2061 | |
2c58c0a9 PA |
2062 | struct print_variable_and_value_data |
2063 | { | |
8f043999 | 2064 | struct frame_id frame_id; |
2c58c0a9 PA |
2065 | int num_tabs; |
2066 | struct ui_file *stream; | |
2067 | int values_printed; | |
2068 | }; | |
2069 | ||
c378eb4e | 2070 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
2071 | |
2072 | static void | |
2073 | do_print_variable_and_value (const char *print_name, | |
2074 | struct symbol *sym, | |
2075 | void *cb_data) | |
2076 | { | |
19ba03f4 SM |
2077 | struct print_variable_and_value_data *p |
2078 | = (struct print_variable_and_value_data *) cb_data; | |
8f043999 JK |
2079 | struct frame_info *frame; |
2080 | ||
2081 | frame = frame_find_by_id (p->frame_id); | |
2082 | if (frame == NULL) | |
2083 | { | |
2084 | warning (_("Unable to restore previously selected frame.")); | |
2085 | return; | |
2086 | } | |
2087 | ||
2088 | print_variable_and_value (print_name, sym, frame, p->stream, p->num_tabs); | |
2089 | ||
2090 | /* print_variable_and_value invalidates FRAME. */ | |
2091 | frame = NULL; | |
2c58c0a9 | 2092 | |
2c58c0a9 PA |
2093 | p->values_printed = 1; |
2094 | } | |
c906108c | 2095 | |
8f043999 JK |
2096 | /* Print all variables from the innermost up to the function block of FRAME. |
2097 | Print them with values to STREAM indented by NUM_TABS. | |
2098 | ||
2099 | This function will invalidate FRAME. */ | |
2100 | ||
c906108c | 2101 | static void |
033a42c2 | 2102 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 2103 | struct ui_file *stream) |
c906108c | 2104 | { |
2c58c0a9 | 2105 | struct print_variable_and_value_data cb_data; |
3977b71f | 2106 | const struct block *block; |
1d4f5741 PA |
2107 | CORE_ADDR pc; |
2108 | ||
2109 | if (!get_frame_pc_if_available (frame, &pc)) | |
2110 | { | |
2111 | fprintf_filtered (stream, | |
2112 | _("PC unavailable, cannot determine locals.\n")); | |
2113 | return; | |
2114 | } | |
c906108c | 2115 | |
2c58c0a9 | 2116 | block = get_frame_block (frame, 0); |
c906108c SS |
2117 | if (block == 0) |
2118 | { | |
2119 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
2120 | return; | |
2121 | } | |
c5aa993b | 2122 | |
8f043999 | 2123 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 PA |
2124 | cb_data.num_tabs = 4 * num_tabs; |
2125 | cb_data.stream = stream; | |
2126 | cb_data.values_printed = 0; | |
2127 | ||
16c3b12f JB |
2128 | /* Temporarily change the selected frame to the given FRAME. |
2129 | This allows routines that rely on the selected frame instead | |
2130 | of being given a frame as parameter to use the correct frame. */ | |
45f25d6c | 2131 | scoped_restore_selected_frame restore_selected_frame; |
16c3b12f JB |
2132 | select_frame (frame); |
2133 | ||
45f25d6c AB |
2134 | iterate_over_block_local_vars (block, |
2135 | do_print_variable_and_value, | |
2136 | &cb_data); | |
8f043999 | 2137 | |
2c58c0a9 | 2138 | if (!cb_data.values_printed) |
033a42c2 | 2139 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
2140 | } |
2141 | ||
c906108c | 2142 | void |
1d12d88f | 2143 | info_locals_command (const char *args, int from_tty) |
c906108c | 2144 | { |
033a42c2 | 2145 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 2146 | 0, gdb_stdout); |
c906108c SS |
2147 | } |
2148 | ||
d392224a | 2149 | /* Iterate over all the argument variables in block B. */ |
2c58c0a9 PA |
2150 | |
2151 | void | |
3977b71f | 2152 | iterate_over_block_arg_vars (const struct block *b, |
2c58c0a9 PA |
2153 | iterate_over_block_arg_local_vars_cb cb, |
2154 | void *cb_data) | |
c906108c | 2155 | { |
8157b174 | 2156 | struct block_iterator iter; |
52f0bd74 | 2157 | struct symbol *sym, *sym2; |
c906108c | 2158 | |
de4f826b | 2159 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 2160 | { |
2a2d4dc3 AS |
2161 | /* Don't worry about things which aren't arguments. */ |
2162 | if (SYMBOL_IS_ARGUMENT (sym)) | |
c906108c | 2163 | { |
c906108c SS |
2164 | /* We have to look up the symbol because arguments can have |
2165 | two entries (one a parameter, one a local) and the one we | |
2166 | want is the local, which lookup_symbol will find for us. | |
2167 | This includes gcc1 (not gcc2) on the sparc when passing a | |
2168 | small structure and gcc2 when the argument type is float | |
2169 | and it is passed as a double and converted to float by | |
2170 | the prologue (in the latter case the type of the LOC_ARG | |
2171 | symbol is double and the type of the LOC_LOCAL symbol is | |
2172 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
2173 | are not combined in symbol-reading. */ | |
2174 | ||
de63c46b PA |
2175 | sym2 = lookup_symbol_search_name (SYMBOL_SEARCH_NAME (sym), |
2176 | b, VAR_DOMAIN).symbol; | |
2c58c0a9 | 2177 | (*cb) (SYMBOL_PRINT_NAME (sym), sym2, cb_data); |
c906108c SS |
2178 | } |
2179 | } | |
2c58c0a9 PA |
2180 | } |
2181 | ||
8f043999 JK |
2182 | /* Print all argument variables of the function of FRAME. |
2183 | Print them with values to STREAM. | |
2184 | ||
2185 | This function will invalidate FRAME. */ | |
2186 | ||
2c58c0a9 PA |
2187 | static void |
2188 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) | |
2189 | { | |
2190 | struct print_variable_and_value_data cb_data; | |
2191 | struct symbol *func; | |
1d4f5741 PA |
2192 | CORE_ADDR pc; |
2193 | ||
2194 | if (!get_frame_pc_if_available (frame, &pc)) | |
2195 | { | |
2196 | fprintf_filtered (stream, _("PC unavailable, cannot determine args.\n")); | |
2197 | return; | |
2198 | } | |
2c58c0a9 PA |
2199 | |
2200 | func = get_frame_function (frame); | |
2201 | if (func == NULL) | |
2202 | { | |
2203 | fprintf_filtered (stream, _("No symbol table info available.\n")); | |
2204 | return; | |
2205 | } | |
2206 | ||
8f043999 | 2207 | cb_data.frame_id = get_frame_id (frame); |
2c58c0a9 | 2208 | cb_data.num_tabs = 0; |
d392224a | 2209 | cb_data.stream = stream; |
2c58c0a9 PA |
2210 | cb_data.values_printed = 0; |
2211 | ||
2212 | iterate_over_block_arg_vars (SYMBOL_BLOCK_VALUE (func), | |
2213 | do_print_variable_and_value, &cb_data); | |
033a42c2 | 2214 | |
8f043999 JK |
2215 | /* do_print_variable_and_value invalidates FRAME. */ |
2216 | frame = NULL; | |
2217 | ||
2c58c0a9 | 2218 | if (!cb_data.values_printed) |
033a42c2 | 2219 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
2220 | } |
2221 | ||
2222 | void | |
1d12d88f | 2223 | info_args_command (const char *ignore, int from_tty) |
c906108c | 2224 | { |
033a42c2 | 2225 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 2226 | gdb_stdout); |
c906108c | 2227 | } |
c906108c | 2228 | \f |
c906108c | 2229 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
2230 | Can return zero under various legitimate circumstances. |
2231 | ||
2232 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
2233 | code address within the block returned. We use this to decide | |
2234 | which macros are in scope. */ | |
c906108c | 2235 | |
3977b71f | 2236 | const struct block * |
ae767bfb | 2237 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c | 2238 | { |
d729566a | 2239 | if (!has_stack_frames ()) |
8ea051c5 PA |
2240 | return 0; |
2241 | ||
206415a3 | 2242 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
2243 | } |
2244 | ||
2245 | /* Find a frame a certain number of levels away from FRAME. | |
2246 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
2247 | Positive means go to earlier frames (up); negative, the reverse. | |
2248 | The int that contains the number of levels is counted toward | |
2249 | zero as the frames for those levels are found. | |
2250 | If the top or bottom frame is reached, that frame is returned, | |
2251 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
2252 | how much farther the original request asked to go. */ | |
2253 | ||
2254 | struct frame_info * | |
033a42c2 | 2255 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 2256 | { |
033a42c2 MK |
2257 | /* Going up is simple: just call get_prev_frame enough times or |
2258 | until the initial frame is reached. */ | |
c906108c SS |
2259 | while (*level_offset_ptr > 0) |
2260 | { | |
033a42c2 | 2261 | struct frame_info *prev = get_prev_frame (frame); |
433759f7 | 2262 | |
033a42c2 | 2263 | if (!prev) |
c906108c SS |
2264 | break; |
2265 | (*level_offset_ptr)--; | |
2266 | frame = prev; | |
2267 | } | |
033a42c2 | 2268 | |
c906108c | 2269 | /* Going down is just as simple. */ |
033a42c2 | 2270 | while (*level_offset_ptr < 0) |
c906108c | 2271 | { |
033a42c2 | 2272 | struct frame_info *next = get_next_frame (frame); |
433759f7 | 2273 | |
033a42c2 MK |
2274 | if (!next) |
2275 | break; | |
2276 | (*level_offset_ptr)++; | |
2277 | frame = next; | |
c906108c | 2278 | } |
033a42c2 | 2279 | |
c906108c SS |
2280 | return frame; |
2281 | } | |
2282 | ||
033a42c2 MK |
2283 | /* Select the frame up one or COUNT_EXP stack levels from the |
2284 | previously selected frame, and print it briefly. */ | |
c906108c | 2285 | |
c906108c | 2286 | static void |
d3d3328b | 2287 | up_silently_base (const char *count_exp) |
c906108c | 2288 | { |
033a42c2 MK |
2289 | struct frame_info *frame; |
2290 | int count = 1; | |
2291 | ||
c906108c | 2292 | if (count_exp) |
bb518678 | 2293 | count = parse_and_eval_long (count_exp); |
c5aa993b | 2294 | |
033a42c2 MK |
2295 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2296 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 2297 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 2298 | select_frame (frame); |
c906108c SS |
2299 | } |
2300 | ||
2301 | static void | |
0b39b52e | 2302 | up_silently_command (const char *count_exp, int from_tty) |
c906108c | 2303 | { |
c5aa993b | 2304 | up_silently_base (count_exp); |
c906108c SS |
2305 | } |
2306 | ||
2307 | static void | |
0b39b52e | 2308 | up_command (const char *count_exp, int from_tty) |
c906108c SS |
2309 | { |
2310 | up_silently_base (count_exp); | |
76727919 | 2311 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); |
c906108c SS |
2312 | } |
2313 | ||
033a42c2 MK |
2314 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
2315 | selected frame, and print it briefly. */ | |
c906108c | 2316 | |
c906108c | 2317 | static void |
d3d3328b | 2318 | down_silently_base (const char *count_exp) |
c906108c | 2319 | { |
52f0bd74 | 2320 | struct frame_info *frame; |
033a42c2 | 2321 | int count = -1; |
f89b749f | 2322 | |
c906108c | 2323 | if (count_exp) |
bb518678 | 2324 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 2325 | |
033a42c2 MK |
2326 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
2327 | if (count != 0 && count_exp == NULL) | |
c906108c | 2328 | { |
033a42c2 MK |
2329 | /* We only do this if COUNT_EXP is not specified. That way |
2330 | "down" means to really go down (and let me know if that is | |
2331 | impossible), but "down 9999" can be used to mean go all the | |
2332 | way down without getting an error. */ | |
c906108c | 2333 | |
033a42c2 | 2334 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
2335 | } |
2336 | ||
0f7d239c | 2337 | select_frame (frame); |
c906108c SS |
2338 | } |
2339 | ||
c906108c | 2340 | static void |
0b39b52e | 2341 | down_silently_command (const char *count_exp, int from_tty) |
c906108c SS |
2342 | { |
2343 | down_silently_base (count_exp); | |
c906108c SS |
2344 | } |
2345 | ||
2346 | static void | |
0b39b52e | 2347 | down_command (const char *count_exp, int from_tty) |
c906108c SS |
2348 | { |
2349 | down_silently_base (count_exp); | |
76727919 | 2350 | gdb::observers::user_selected_context_changed.notify (USER_SELECTED_FRAME); |
c906108c | 2351 | } |
033a42c2 | 2352 | |
8b93c638 | 2353 | void |
0b39b52e | 2354 | return_command (const char *retval_exp, int from_tty) |
c906108c | 2355 | { |
901900c4 MGD |
2356 | /* Initialize it just to avoid a GCC false warning. */ |
2357 | enum return_value_convention rv_conv = RETURN_VALUE_STRUCT_CONVENTION; | |
5ed92fa8 | 2358 | struct frame_info *thisframe; |
d80b854b | 2359 | struct gdbarch *gdbarch; |
c906108c | 2360 | struct symbol *thisfun; |
3d6d86c6 | 2361 | struct value *return_value = NULL; |
6a3a010b | 2362 | struct value *function = NULL; |
fc70c2a0 | 2363 | const char *query_prefix = ""; |
c906108c | 2364 | |
5ed92fa8 UW |
2365 | thisframe = get_selected_frame ("No selected frame."); |
2366 | thisfun = get_frame_function (thisframe); | |
d80b854b | 2367 | gdbarch = get_frame_arch (thisframe); |
c906108c | 2368 | |
edb3359d DJ |
2369 | if (get_frame_type (get_current_frame ()) == INLINE_FRAME) |
2370 | error (_("Can not force return from an inlined function.")); | |
2371 | ||
fc70c2a0 AC |
2372 | /* Compute the return value. If the computation triggers an error, |
2373 | let it bail. If the return type can't be handled, set | |
2374 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
2375 | message. */ | |
c906108c SS |
2376 | if (retval_exp) |
2377 | { | |
4d01a485 | 2378 | expression_up retval_expr = parse_expression (retval_exp); |
c906108c SS |
2379 | struct type *return_type = NULL; |
2380 | ||
fc70c2a0 AC |
2381 | /* Compute the return value. Should the computation fail, this |
2382 | call throws an error. */ | |
4d01a485 | 2383 | return_value = evaluate_expression (retval_expr.get ()); |
c906108c | 2384 | |
fc70c2a0 AC |
2385 | /* Cast return value to the return type of the function. Should |
2386 | the cast fail, this call throws an error. */ | |
c906108c SS |
2387 | if (thisfun != NULL) |
2388 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
2389 | if (return_type == NULL) | |
61ff14c6 | 2390 | { |
9eaf6705 TT |
2391 | if (retval_expr->elts[0].opcode != UNOP_CAST |
2392 | && retval_expr->elts[0].opcode != UNOP_CAST_TYPE) | |
61ff14c6 JK |
2393 | error (_("Return value type not available for selected " |
2394 | "stack frame.\n" | |
2395 | "Please use an explicit cast of the value to return.")); | |
2396 | return_type = value_type (return_value); | |
2397 | } | |
f168693b | 2398 | return_type = check_typedef (return_type); |
c906108c SS |
2399 | return_value = value_cast (return_type, return_value); |
2400 | ||
fc70c2a0 AC |
2401 | /* Make sure the value is fully evaluated. It may live in the |
2402 | stack frame we're about to pop. */ | |
d69fe07e | 2403 | if (value_lazy (return_value)) |
c906108c | 2404 | value_fetch_lazy (return_value); |
c906108c | 2405 | |
6a3a010b | 2406 | if (thisfun != NULL) |
63e43d3a | 2407 | function = read_var_value (thisfun, NULL, thisframe); |
6a3a010b | 2408 | |
bbfdfe1c | 2409 | rv_conv = RETURN_VALUE_REGISTER_CONVENTION; |
667e784f AC |
2410 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
2411 | /* If the return-type is "void", don't try to find the | |
2412 | return-value's location. However, do still evaluate the | |
2413 | return expression so that, even when the expression result | |
2414 | is discarded, side effects such as "return i++" still | |
033a42c2 | 2415 | occur. */ |
667e784f | 2416 | return_value = NULL; |
bbfdfe1c | 2417 | else if (thisfun != NULL) |
fc70c2a0 | 2418 | { |
bbfdfe1c DM |
2419 | rv_conv = struct_return_convention (gdbarch, function, return_type); |
2420 | if (rv_conv == RETURN_VALUE_STRUCT_CONVENTION | |
2421 | || rv_conv == RETURN_VALUE_ABI_RETURNS_ADDRESS) | |
2422 | { | |
2423 | query_prefix = "The location at which to store the " | |
2424 | "function's return value is unknown.\n" | |
2425 | "If you continue, the return value " | |
2426 | "that you specified will be ignored.\n"; | |
2427 | return_value = NULL; | |
2428 | } | |
fc70c2a0 | 2429 | } |
c906108c SS |
2430 | } |
2431 | ||
fc70c2a0 AC |
2432 | /* Does an interactive user really want to do this? Include |
2433 | information, such as how well GDB can handle the return value, in | |
2434 | the query message. */ | |
2435 | if (from_tty) | |
2436 | { | |
2437 | int confirmed; | |
433759f7 | 2438 | |
fc70c2a0 | 2439 | if (thisfun == NULL) |
e2e0b3e5 | 2440 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
2441 | query_prefix); |
2442 | else | |
743649fd MW |
2443 | { |
2444 | if (TYPE_NO_RETURN (thisfun->type)) | |
d35b90fb | 2445 | warning (_("Function does not return normally to caller.")); |
743649fd MW |
2446 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
2447 | SYMBOL_PRINT_NAME (thisfun)); | |
2448 | } | |
fc70c2a0 | 2449 | if (!confirmed) |
8a3fe4f8 | 2450 | error (_("Not confirmed")); |
fc70c2a0 | 2451 | } |
c906108c | 2452 | |
a45ae3ed UW |
2453 | /* Discard the selected frame and all frames inner-to it. */ |
2454 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 2455 | |
a1f5b845 | 2456 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
2457 | if (return_value != NULL) |
2458 | { | |
df407dfe | 2459 | struct type *return_type = value_type (return_value); |
b926417a | 2460 | struct gdbarch *cache_arch = get_current_regcache ()->arch (); |
42e2132c | 2461 | |
bbfdfe1c DM |
2462 | gdb_assert (rv_conv != RETURN_VALUE_STRUCT_CONVENTION |
2463 | && rv_conv != RETURN_VALUE_ABI_RETURNS_ADDRESS); | |
b926417a | 2464 | gdbarch_return_value (cache_arch, function, return_type, |
594f7785 | 2465 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 2466 | value_contents (return_value) /*write*/); |
fc70c2a0 | 2467 | } |
1a2aab69 | 2468 | |
fc70c2a0 AC |
2469 | /* If we are at the end of a call dummy now, pop the dummy frame |
2470 | too. */ | |
e8bcf01f AC |
2471 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
2472 | frame_pop (get_current_frame ()); | |
1a2aab69 | 2473 | |
edbbff4a | 2474 | select_frame (get_current_frame ()); |
c906108c | 2475 | /* If interactive, print the frame that is now current. */ |
c906108c | 2476 | if (from_tty) |
edbbff4a | 2477 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
c906108c SS |
2478 | } |
2479 | ||
39f0c204 AB |
2480 | /* Find the most inner frame in the current stack for a function called |
2481 | FUNCTION_NAME. If no matching frame is found return NULL. */ | |
c906108c | 2482 | |
39f0c204 AB |
2483 | static struct frame_info * |
2484 | find_frame_for_function (const char *function_name) | |
c906108c | 2485 | { |
39f0c204 AB |
2486 | /* Used to hold the lower and upper addresses for each of the |
2487 | SYMTAB_AND_LINEs found for functions matching FUNCTION_NAME. */ | |
2488 | struct function_bounds | |
2489 | { | |
2490 | CORE_ADDR low, high; | |
2491 | }; | |
033a42c2 | 2492 | struct frame_info *frame; |
39f0c204 | 2493 | bool found = false; |
c906108c | 2494 | int level = 1; |
c906108c | 2495 | |
39f0c204 | 2496 | gdb_assert (function_name != NULL); |
c906108c | 2497 | |
edbbff4a | 2498 | frame = get_current_frame (); |
6c5b2ebe | 2499 | std::vector<symtab_and_line> sals |
39f0c204 AB |
2500 | = decode_line_with_current_source (function_name, |
2501 | DECODE_LINE_FUNFIRSTLINE); | |
0b868b60 | 2502 | gdb::def_vector<function_bounds> func_bounds (sals.size ()); |
39f0c204 | 2503 | for (size_t i = 0; i < sals.size (); i++) |
c906108c | 2504 | { |
6c5b2ebe | 2505 | if (sals[i].pspace != current_program_space) |
f8eba3c6 | 2506 | func_bounds[i].low = func_bounds[i].high = 0; |
6c5b2ebe PA |
2507 | else if (sals[i].pc == 0 |
2508 | || find_pc_partial_function (sals[i].pc, NULL, | |
f8eba3c6 TT |
2509 | &func_bounds[i].low, |
2510 | &func_bounds[i].high) == 0) | |
39f0c204 | 2511 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
2512 | } |
2513 | ||
2514 | do | |
2515 | { | |
6c5b2ebe | 2516 | for (size_t i = 0; (i < sals.size () && !found); i++) |
033a42c2 MK |
2517 | found = (get_frame_pc (frame) >= func_bounds[i].low |
2518 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
2519 | if (!found) |
2520 | { | |
2521 | level = 1; | |
033a42c2 | 2522 | frame = find_relative_frame (frame, &level); |
c906108c SS |
2523 | } |
2524 | } | |
2525 | while (!found && level == 0); | |
2526 | ||
c906108c | 2527 | if (!found) |
39f0c204 AB |
2528 | frame = NULL; |
2529 | ||
2530 | return frame; | |
2531 | } | |
2532 | ||
2533 | /* Implements the dbx 'func' command. */ | |
2534 | ||
2535 | static void | |
2536 | func_command (const char *arg, int from_tty) | |
2537 | { | |
2538 | if (arg == NULL) | |
2539 | return; | |
2540 | ||
2541 | struct frame_info *frame = find_frame_for_function (arg); | |
2542 | if (frame == NULL) | |
61367c61 | 2543 | error (_("'%s' not within current stack frame."), arg); |
39f0c204 AB |
2544 | if (frame != get_selected_frame (NULL)) |
2545 | { | |
2546 | select_frame (frame); | |
2547 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); | |
2548 | } | |
c906108c | 2549 | } |
033a42c2 | 2550 | |
6a70eb7d PW |
2551 | /* Apply a GDB command to all stack frames, or a set of identified frames, |
2552 | or innermost COUNT frames. | |
2553 | With a negative COUNT, apply command on outermost -COUNT frames. | |
2554 | ||
2555 | frame apply 3 info frame Apply 'info frame' to frames 0, 1, 2 | |
2556 | frame apply -3 info frame Apply 'info frame' to outermost 3 frames. | |
2557 | frame apply all x/i $pc Apply 'x/i $pc' cmd to all frames. | |
2558 | frame apply all -s p local_var_no_idea_in_which_frame | |
2559 | If a frame has a local variable called | |
2560 | local_var_no_idea_in_which_frame, print frame | |
2561 | and value of local_var_no_idea_in_which_frame. | |
2562 | frame apply all -s -q p local_var_no_idea_in_which_frame | |
2563 | Same as before, but only print the variable value. | |
2564 | frame apply level 2-5 0 4-7 -s p i = i + 1 | |
2565 | Adds 1 to the variable i in the specified frames. | |
2566 | Note that i will be incremented twice in | |
2567 | frames 4 and 5. */ | |
2568 | ||
2569 | /* Apply a GDB command to COUNT stack frames, starting at TRAILING. | |
2570 | CMD starts with 0 or more qcs flags followed by the GDB command to apply. | |
2571 | COUNT -1 means all frames starting at TRAILING. WHICH_COMMAND is used | |
2572 | for error messages. */ | |
2573 | ||
2574 | static void | |
2575 | frame_apply_command_count (const char *which_command, | |
2576 | const char *cmd, int from_tty, | |
2577 | struct frame_info *trailing, int count) | |
2578 | { | |
2579 | qcs_flags flags; | |
2580 | struct frame_info *fi; | |
2581 | ||
2582 | while (cmd != NULL && parse_flags_qcs (which_command, &cmd, &flags)) | |
2583 | ; | |
2584 | ||
2585 | if (cmd == NULL || *cmd == '\0') | |
2586 | error (_("Please specify a command to apply on the selected frames")); | |
2587 | ||
2588 | /* The below will restore the current inferior/thread/frame. | |
2589 | Usually, only the frame is effectively to be restored. | |
2590 | But in case CMD switches of inferior/thread, better restore | |
2591 | these also. */ | |
2592 | scoped_restore_current_thread restore_thread; | |
2593 | ||
2594 | for (fi = trailing; fi && count--; fi = get_prev_frame (fi)) | |
2595 | { | |
2596 | QUIT; | |
2597 | ||
2598 | select_frame (fi); | |
2599 | TRY | |
2600 | { | |
2601 | std::string cmd_result; | |
2602 | { | |
2603 | /* In case CMD switches of inferior/thread/frame, the below | |
2604 | restores the inferior/thread/frame. FI can then be | |
2605 | set to the selected frame. */ | |
2606 | scoped_restore_current_thread restore_fi_current_frame; | |
2607 | ||
2608 | cmd_result = execute_command_to_string (cmd, from_tty); | |
2609 | } | |
2610 | fi = get_selected_frame (_("frame apply " | |
2611 | "unable to get selected frame.")); | |
2612 | if (!flags.silent || cmd_result.length () > 0) | |
2613 | { | |
2614 | if (!flags.quiet) | |
2615 | print_stack_frame (fi, 1, LOCATION, 0); | |
2616 | printf_filtered ("%s", cmd_result.c_str ()); | |
2617 | } | |
2618 | } | |
2619 | CATCH (ex, RETURN_MASK_ERROR) | |
2620 | { | |
2621 | fi = get_selected_frame (_("frame apply " | |
2622 | "unable to get selected frame.")); | |
2623 | if (!flags.silent) | |
2624 | { | |
2625 | if (!flags.quiet) | |
2626 | print_stack_frame (fi, 1, LOCATION, 0); | |
2627 | if (flags.cont) | |
2628 | printf_filtered ("%s\n", ex.message); | |
2629 | else | |
2630 | throw_exception (ex); | |
2631 | } | |
2632 | } | |
2633 | END_CATCH; | |
2634 | } | |
2635 | } | |
2636 | ||
2637 | /* Implementation of the "frame apply level" command. */ | |
2638 | ||
2639 | static void | |
2640 | frame_apply_level_command (const char *cmd, int from_tty) | |
2641 | { | |
2642 | if (!target_has_stack) | |
2643 | error (_("No stack.")); | |
2644 | ||
2645 | bool level_found = false; | |
2646 | const char *levels_str = cmd; | |
2647 | number_or_range_parser levels (levels_str); | |
2648 | ||
2649 | /* Skip the LEVEL list to find the flags and command args. */ | |
2650 | while (!levels.finished ()) | |
2651 | { | |
8d49165d TT |
2652 | /* Call for effect. */ |
2653 | levels.get_number (); | |
6a70eb7d PW |
2654 | |
2655 | level_found = true; | |
2656 | if (levels.in_range ()) | |
2657 | levels.skip_range (); | |
2658 | } | |
2659 | ||
2660 | if (!level_found) | |
2661 | error (_("Missing or invalid LEVEL... argument")); | |
2662 | ||
2663 | cmd = levels.cur_tok (); | |
2664 | ||
2665 | /* Redo the LEVELS parsing, but applying COMMAND. */ | |
2666 | levels.init (levels_str); | |
2667 | while (!levels.finished ()) | |
2668 | { | |
2669 | const int level_beg = levels.get_number (); | |
2670 | int n_frames; | |
2671 | ||
2672 | if (levels.in_range ()) | |
2673 | { | |
2674 | n_frames = levels.end_value () - level_beg + 1; | |
2675 | levels.skip_range (); | |
2676 | } | |
2677 | else | |
2678 | n_frames = 1; | |
2679 | ||
2680 | frame_apply_command_count ("frame apply level", cmd, from_tty, | |
2681 | leading_innermost_frame (level_beg), n_frames); | |
2682 | } | |
2683 | } | |
2684 | ||
2685 | /* Implementation of the "frame apply all" command. */ | |
2686 | ||
2687 | static void | |
2688 | frame_apply_all_command (const char *cmd, int from_tty) | |
2689 | { | |
2690 | if (!target_has_stack) | |
2691 | error (_("No stack.")); | |
2692 | ||
2693 | frame_apply_command_count ("frame apply all", cmd, from_tty, | |
2694 | get_current_frame (), INT_MAX); | |
2695 | } | |
2696 | ||
2697 | /* Implementation of the "frame apply" command. */ | |
2698 | ||
2699 | static void | |
2700 | frame_apply_command (const char* cmd, int from_tty) | |
2701 | { | |
2702 | int count; | |
2703 | struct frame_info *trailing; | |
2704 | ||
2705 | if (!target_has_stack) | |
2706 | error (_("No stack.")); | |
2707 | ||
2708 | if (cmd == NULL) | |
2709 | error (_("Missing COUNT argument.")); | |
2710 | count = get_number_trailer (&cmd, 0); | |
2711 | if (count == 0) | |
2712 | error (_("Invalid COUNT argument.")); | |
2713 | ||
2714 | if (count < 0) | |
2715 | { | |
2716 | trailing = trailing_outermost_frame (-count); | |
2717 | count = -1; | |
2718 | } | |
2719 | else | |
2720 | trailing = get_current_frame (); | |
2721 | ||
2722 | frame_apply_command_count ("frame apply", cmd, from_tty, | |
2723 | trailing, count); | |
2724 | } | |
2725 | ||
2726 | /* Implementation of the "faas" command. */ | |
2727 | ||
2728 | static void | |
2729 | faas_command (const char *cmd, int from_tty) | |
2730 | { | |
2731 | std::string expanded = std::string ("frame apply all -s ") + cmd; | |
2732 | execute_command (expanded.c_str (), from_tty); | |
2733 | } | |
2734 | ||
2735 | ||
f67ffa6a AB |
2736 | /* Find inner-mode frame with frame address ADDRESS. Return NULL if no |
2737 | matching frame can be found. */ | |
2738 | ||
2739 | static struct frame_info * | |
2740 | find_frame_for_address (CORE_ADDR address) | |
2741 | { | |
2742 | struct frame_id id; | |
2743 | struct frame_info *fid; | |
2744 | ||
2745 | id = frame_id_build_wild (address); | |
2746 | ||
2747 | /* If (s)he specifies the frame with an address, he deserves | |
2748 | what (s)he gets. Still, give the highest one that matches. | |
2749 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
2750 | know). */ | |
2751 | for (fid = get_current_frame (); | |
2752 | fid != NULL; | |
2753 | fid = get_prev_frame (fid)) | |
2754 | { | |
2755 | if (frame_id_eq (id, get_frame_id (fid))) | |
2756 | { | |
2757 | struct frame_info *prev_frame; | |
2758 | ||
2759 | while (1) | |
2760 | { | |
2761 | prev_frame = get_prev_frame (fid); | |
2762 | if (!prev_frame | |
2763 | || !frame_id_eq (id, get_frame_id (prev_frame))) | |
2764 | break; | |
2765 | fid = prev_frame; | |
2766 | } | |
2767 | return fid; | |
2768 | } | |
2769 | } | |
2770 | return NULL; | |
2771 | } | |
2772 | ||
2773 | \f | |
2774 | ||
2775 | /* Commands with a prefix of `frame apply'. */ | |
2776 | static struct cmd_list_element *frame_apply_cmd_list = NULL; | |
2777 | ||
6a70eb7d | 2778 | /* Commands with a prefix of `frame'. */ |
f67ffa6a AB |
2779 | static struct cmd_list_element *frame_cmd_list = NULL; |
2780 | ||
2781 | /* Commands with a prefix of `select frame'. */ | |
2782 | static struct cmd_list_element *select_frame_cmd_list = NULL; | |
2783 | ||
2784 | /* Commands with a prefix of `info frame'. */ | |
2785 | static struct cmd_list_element *info_frame_cmd_list = NULL; | |
6a70eb7d | 2786 | |
c906108c | 2787 | void |
fba45db2 | 2788 | _initialize_stack (void) |
c906108c | 2789 | { |
f67ffa6a | 2790 | struct cmd_list_element *cmd; |
6a70eb7d | 2791 | |
1bedd215 AC |
2792 | add_com ("return", class_stack, return_command, _("\ |
2793 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
2794 | Control remains in the debugger, but when you continue\n\ |
2795 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
2796 | If an argument is given, it is an expression for the value to return.")); |
2797 | ||
2798 | add_com ("up", class_stack, up_command, _("\ | |
2799 | Select and print stack frame that called this one.\n\ | |
2800 | An argument says how many frames up to go.")); | |
2801 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
2802 | Same as the `up' command, but does not print anything.\n\ | |
2803 | This is useful in command scripts.")); | |
2804 | ||
2805 | add_com ("down", class_stack, down_command, _("\ | |
2806 | Select and print stack frame called by this one.\n\ | |
2807 | An argument says how many frames down to go.")); | |
c906108c SS |
2808 | add_com_alias ("do", "down", class_stack, 1); |
2809 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
2810 | add_com ("down-silently", class_support, down_silently_command, _("\ |
2811 | Same as the `down' command, but does not print anything.\n\ | |
2812 | This is useful in command scripts.")); | |
c906108c | 2813 | |
f67ffa6a AB |
2814 | add_prefix_cmd ("frame", class_stack, |
2815 | &frame_cmd.base_command, _("\ | |
2816 | Select and print a stack frame.\n\ | |
2817 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ | |
2818 | A single numerical argument specifies the frame to select."), | |
2819 | &frame_cmd_list, "frame ", 1, &cmdlist); | |
c906108c SS |
2820 | |
2821 | add_com_alias ("f", "frame", class_stack, 1); | |
2822 | ||
6a70eb7d PW |
2823 | #define FRAME_APPLY_FLAGS_HELP "\ |
2824 | Prints the frame location information followed by COMMAND output.\n\ | |
2825 | FLAG arguments are -q (quiet), -c (continue), -s (silent).\n\ | |
2826 | Flag -q disables printing the frame location information.\n\ | |
2827 | By default, if a COMMAND raises an error, frame apply is aborted.\n\ | |
2828 | Flag -c indicates to print the error and continue.\n\ | |
2829 | Flag -s indicates to silently ignore a COMMAND that raises an error\n\ | |
2830 | or produces no output." | |
2831 | ||
2832 | add_prefix_cmd ("apply", class_stack, frame_apply_command, | |
2833 | _("Apply a command to a number of frames.\n\ | |
2834 | Usage: frame apply COUNT [FLAG]... COMMAND\n\ | |
2835 | With a negative COUNT argument, applies the command on outermost -COUNT frames.\n" | |
2836 | FRAME_APPLY_FLAGS_HELP), | |
f67ffa6a | 2837 | &frame_apply_cmd_list, "frame apply ", 1, &frame_cmd_list); |
6a70eb7d PW |
2838 | |
2839 | add_cmd ("all", class_stack, frame_apply_all_command, | |
2840 | _("\ | |
2841 | Apply a command to all frames.\n\ | |
2842 | \n\ | |
2843 | Usage: frame apply all [FLAG]... COMMAND\n" | |
2844 | FRAME_APPLY_FLAGS_HELP), | |
f67ffa6a | 2845 | &frame_apply_cmd_list); |
6a70eb7d PW |
2846 | |
2847 | add_cmd ("level", class_stack, frame_apply_level_command, | |
2848 | _("\ | |
2849 | Apply a command to a list of frames.\n\ | |
2850 | \n\ | |
2851 | Usage: frame apply level LEVEL... [FLAG]... COMMAND\n\ | |
2852 | ID is a space-separated list of LEVELs of frames to apply COMMAND on.\n" | |
2853 | FRAME_APPLY_FLAGS_HELP), | |
f67ffa6a | 2854 | &frame_apply_cmd_list); |
6a70eb7d PW |
2855 | |
2856 | add_com ("faas", class_stack, faas_command, _("\ | |
2857 | Apply a command to all frames (ignoring errors and empty output).\n\ | |
2858 | Usage: faas COMMAND\n\ | |
2859 | shortcut for 'frame apply all -s COMMAND'")); | |
2860 | ||
f67ffa6a AB |
2861 | |
2862 | add_prefix_cmd ("frame", class_stack, | |
2863 | &frame_cmd.base_command, _("\ | |
2864 | Select and print a stack frame.\n\ | |
2865 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ | |
2866 | A single numerical argument specifies the frame to select."), | |
2867 | &frame_cmd_list, "frame ", 1, &cmdlist); | |
2868 | add_com_alias ("f", "frame", class_stack, 1); | |
2869 | ||
2870 | add_cmd ("address", class_stack, &frame_cmd.address, | |
2871 | _("\ | |
2872 | Select and print a stack frame by stack address\n\ | |
2873 | \n\ | |
2874 | Usage: frame address STACK-ADDRESS"), | |
2875 | &frame_cmd_list); | |
2876 | ||
2877 | add_cmd ("view", class_stack, &frame_cmd.view, | |
2878 | _("\ | |
2879 | View a stack frame that might be outside the current backtrace.\n\ | |
2880 | \n\ | |
2881 | Usage: frame view STACK-ADDRESS\n\ | |
2882 | frame view STACK-ADDRESS PC-ADDRESS"), | |
2883 | &frame_cmd_list); | |
2884 | ||
2885 | cmd = add_cmd ("function", class_stack, &frame_cmd.function, | |
2886 | _("\ | |
2887 | Select and print a stack frame by function name.\n\ | |
2888 | \n\ | |
2889 | Usage: frame function NAME\n\ | |
2890 | \n\ | |
2891 | The innermost frame that visited function NAME is selected."), | |
2892 | &frame_cmd_list); | |
2893 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
2894 | ||
2895 | ||
2896 | add_cmd ("level", class_stack, &frame_cmd.level, | |
2897 | _("\ | |
2898 | Select and print a stack frame by level.\n\ | |
2899 | \n\ | |
2900 | Usage: frame level LEVEL"), | |
2901 | &frame_cmd_list); | |
2902 | ||
2903 | cmd = add_prefix_cmd_suppress_notification ("select-frame", class_stack, | |
2904 | &select_frame_cmd.base_command, _("\ | |
1bedd215 | 2905 | Select a stack frame without printing anything.\n\ |
f67ffa6a AB |
2906 | A single numerical argument specifies the frame to select."), |
2907 | &select_frame_cmd_list, "select-frame ", 1, &cmdlist, | |
2908 | &cli_suppress_notification.user_selected_context); | |
2909 | ||
2910 | add_cmd_suppress_notification ("address", class_stack, | |
2911 | &select_frame_cmd.address, _("\ | |
2912 | Select a stack frame by stack address.\n\ | |
2913 | \n\ | |
2914 | Usage: select-frame address STACK-ADDRESS"), | |
2915 | &select_frame_cmd_list, | |
2916 | &cli_suppress_notification.user_selected_context); | |
2917 | ||
2918 | ||
2919 | add_cmd_suppress_notification ("view", class_stack, | |
2920 | &select_frame_cmd.view, _("\ | |
2921 | Select a stack frame that might be outside the current backtrace.\n\ | |
2922 | \n\ | |
2923 | Usage: select-frame view STACK-ADDRESS\n\ | |
2924 | select-frame view STACK-ADDRESS PC-ADDRESS"), | |
2925 | &select_frame_cmd_list, | |
4034d0ff | 2926 | &cli_suppress_notification.user_selected_context); |
c906108c | 2927 | |
f67ffa6a AB |
2928 | cmd = add_cmd_suppress_notification ("function", class_stack, |
2929 | &select_frame_cmd.function, _("\ | |
2930 | Select a stack frame by function name.\n\ | |
2931 | \n\ | |
2932 | Usage: select-frame function NAME"), | |
2933 | &select_frame_cmd_list, | |
2934 | &cli_suppress_notification.user_selected_context); | |
2935 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
2936 | ||
2937 | add_cmd_suppress_notification ("level", class_stack, | |
2938 | &select_frame_cmd.level, _("\ | |
2939 | Select a stack frame by level.\n\ | |
2940 | \n\ | |
2941 | Usage: select-frame level LEVEL"), | |
2942 | &select_frame_cmd_list, | |
2943 | &cli_suppress_notification.user_selected_context); | |
2944 | ||
1bedd215 AC |
2945 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2946 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
9507b29c TT |
2947 | Usage: backtrace [QUALIFIERS]... [COUNT]\n\ |
2948 | With a negative argument, print outermost -COUNT frames.\n\ | |
2949 | Use of the 'full' qualifier also prints the values of the local variables.\n\ | |
1e611234 | 2950 | Use of the 'no-filters' qualifier prohibits frame filters from executing\n\ |
9507b29c | 2951 | on this backtrace.")); |
c906108c | 2952 | add_com_alias ("bt", "backtrace", class_stack, 0); |
c906108c SS |
2953 | |
2954 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2955 | add_info ("stack", backtrace_command, | |
1bedd215 | 2956 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c | 2957 | add_info_alias ("s", "stack", 1); |
f67ffa6a AB |
2958 | |
2959 | add_prefix_cmd ("frame", class_info, &info_frame_cmd.base_command, | |
2960 | _("All about the selected stack frame.\n\ | |
2961 | With no arguments, displays information about the currently selected stack\n\ | |
2962 | frame. Alternatively a frame specification may be provided (See \"frame\")\n\ | |
2963 | the information is then printed about the specified frame."), | |
2964 | &info_frame_cmd_list, "info frame ", 1, &infolist); | |
c906108c | 2965 | add_info_alias ("f", "frame", 1); |
f67ffa6a AB |
2966 | |
2967 | add_cmd ("address", class_stack, &info_frame_cmd.address, | |
2968 | _("\ | |
2969 | Print information about a stack frame selected by stack address.\n\ | |
2970 | \n\ | |
2971 | Usage: info frame address STACK-ADDRESS"), | |
2972 | &info_frame_cmd_list); | |
2973 | ||
2974 | add_cmd ("view", class_stack, &info_frame_cmd.view, | |
2975 | _("\ | |
2976 | Print information about a stack frame outside the current backtrace.\n\ | |
2977 | \n\ | |
2978 | Usage: info frame view STACK-ADDRESS\n\ | |
2979 | info frame view STACK-ADDRESS PC-ADDRESS"), | |
2980 | &info_frame_cmd_list); | |
2981 | ||
2982 | cmd = add_cmd ("function", class_stack, &info_frame_cmd.function, | |
2983 | _("\ | |
2984 | Print information about a stack frame selected by function name.\n\ | |
2985 | \n\ | |
2986 | Usage: info frame function NAME"), | |
2987 | &info_frame_cmd_list); | |
2988 | set_cmd_completer (cmd, frame_selection_by_function_completer); | |
2989 | ||
2990 | add_cmd ("level", class_stack, &info_frame_cmd.level, | |
2991 | _("\ | |
2992 | Print information about a stack frame selected by level.\n\ | |
2993 | \n\ | |
2994 | Usage: info frame level LEVEL"), | |
2995 | &info_frame_cmd_list); | |
2996 | ||
11db9430 | 2997 | add_info ("locals", info_locals_command, |
1bedd215 | 2998 | _("Local variables of current stack frame.")); |
11db9430 | 2999 | add_info ("args", info_args_command, |
1bedd215 | 3000 | _("Argument variables of current stack frame.")); |
c906108c SS |
3001 | |
3002 | if (dbx_commands) | |
1bedd215 | 3003 | add_com ("func", class_stack, func_command, _("\ |
41827fc3 TT |
3004 | Select the stack frame that contains NAME.\n\ |
3005 | Usage: func NAME")); | |
c906108c | 3006 | |
88408340 JB |
3007 | add_setshow_enum_cmd ("frame-arguments", class_stack, |
3008 | print_frame_arguments_choices, &print_frame_arguments, | |
3009 | _("Set printing of non-scalar frame arguments"), | |
3010 | _("Show printing of non-scalar frame arguments"), | |
3011 | NULL, NULL, NULL, &setprintlist, &showprintlist); | |
3012 | ||
e7045703 DE |
3013 | add_setshow_boolean_cmd ("frame-arguments", no_class, |
3014 | &print_raw_frame_arguments, _("\ | |
3015 | Set whether to print frame arguments in raw form."), _("\ | |
3016 | Show whether to print frame arguments in raw form."), _("\ | |
3017 | If set, frame arguments are printed in raw form, bypassing any\n\ | |
3018 | pretty-printers for that value."), | |
3019 | NULL, NULL, | |
3020 | &setprintrawlist, &showprintrawlist); | |
3021 | ||
30c33a9f HZ |
3022 | add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack, |
3023 | &disassemble_next_line, _("\ | |
3e43a32a MS |
3024 | Set whether to disassemble next source line or insn when execution stops."), |
3025 | _("\ | |
3026 | Show whether to disassemble next source line or insn when execution stops."), | |
3027 | _("\ | |
80a0ea0f EZ |
3028 | If ON, GDB will display disassembly of the next source line, in addition\n\ |
3029 | to displaying the source line itself. If the next source line cannot\n\ | |
3030 | be displayed (e.g., source is unavailable or there's no line info), GDB\n\ | |
3031 | will display disassembly of next instruction instead of showing the\n\ | |
3032 | source line.\n\ | |
3033 | If AUTO, display disassembly of next instruction only if the source line\n\ | |
3034 | cannot be displayed.\n\ | |
3035 | If OFF (which is the default), never display the disassembly of the next\n\ | |
3036 | source line."), | |
30c33a9f HZ |
3037 | NULL, |
3038 | show_disassemble_next_line, | |
3039 | &setlist, &showlist); | |
a362e3d3 | 3040 | disassemble_next_line = AUTO_BOOLEAN_FALSE; |
e18b2753 JK |
3041 | |
3042 | add_setshow_enum_cmd ("entry-values", class_stack, | |
3043 | print_entry_values_choices, &print_entry_values, | |
3044 | _("Set printing of function arguments at function " | |
3045 | "entry"), | |
3046 | _("Show printing of function arguments at function " | |
3047 | "entry"), | |
3048 | _("\ | |
3049 | GDB can sometimes determine the values of function arguments at entry,\n\ | |
3050 | in addition to their current values. This option tells GDB whether\n\ | |
3051 | to print the current value, the value at entry (marked as val@entry),\n\ | |
3052 | or both. Note that one or both of these values may be <optimized out>."), | |
3053 | NULL, NULL, &setprintlist, &showprintlist); | |
c906108c | 3054 | } |