Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
0fb0cc75 JB |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
5 | 2009 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 21 | |
c906108c | 22 | #include "defs.h" |
c906108c SS |
23 | #include "value.h" |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "language.h" | |
28 | #include "frame.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "gdbcore.h" | |
31 | #include "target.h" | |
0378c332 | 32 | #include "source.h" |
c906108c SS |
33 | #include "breakpoint.h" |
34 | #include "demangle.h" | |
35 | #include "inferior.h" | |
36 | #include "annotate.h" | |
8b93c638 | 37 | #include "ui-out.h" |
fe898f56 | 38 | #include "block.h" |
b9362cc7 | 39 | #include "stack.h" |
de4f826b | 40 | #include "dictionary.h" |
60250e8b | 41 | #include "exceptions.h" |
898c62f5 | 42 | #include "reggroups.h" |
fc70c2a0 | 43 | #include "regcache.h" |
a77053c2 | 44 | #include "solib.h" |
033a42c2 | 45 | #include "valprint.h" |
8ea051c5 | 46 | #include "gdbthread.h" |
3567439c | 47 | #include "cp-support.h" |
30c33a9f | 48 | #include "disasm.h" |
c906108c | 49 | |
033a42c2 MK |
50 | #include "gdb_assert.h" |
51 | #include <ctype.h> | |
52 | #include "gdb_string.h" | |
c906108c | 53 | |
9a4105ab | 54 | void (*deprecated_selected_frame_level_changed_hook) (int); |
c906108c | 55 | |
88408340 JB |
56 | /* The possible choices of "set print frame-arguments, and the value |
57 | of this setting. */ | |
58 | ||
59 | static const char *print_frame_arguments_choices[] = | |
60 | {"all", "scalars", "none", NULL}; | |
476f7b68 | 61 | static const char *print_frame_arguments = "scalars"; |
88408340 | 62 | |
a58dd373 | 63 | /* Prototypes for local functions. */ |
c906108c | 64 | |
d9fcf2fb JM |
65 | static void print_frame_local_vars (struct frame_info *, int, |
66 | struct ui_file *); | |
c906108c | 67 | |
033a42c2 MK |
68 | static void print_frame (struct frame_info *frame, int print_level, |
69 | enum print_what print_what, int print_args, | |
c5394b80 JM |
70 | struct symtab_and_line sal); |
71 | ||
c906108c SS |
72 | /* Zero means do things normally; we are interacting directly with the |
73 | user. One means print the full filename and linenumber when a | |
74 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
75 | parse. Two means print similar annotations, but in many more | |
76 | cases and in a slightly different syntax. */ | |
77 | ||
78 | int annotation_level = 0; | |
c906108c | 79 | \f |
c5aa993b JM |
80 | |
81 | struct print_stack_frame_args | |
033a42c2 MK |
82 | { |
83 | struct frame_info *frame; | |
84 | int print_level; | |
85 | enum print_what print_what; | |
86 | int print_args; | |
87 | }; | |
88 | ||
89 | /* Show or print the frame arguments; stub for catch_errors. */ | |
90 | ||
c906108c | 91 | static int |
fba45db2 | 92 | print_stack_frame_stub (void *args) |
c906108c | 93 | { |
c789492a | 94 | struct print_stack_frame_args *p = args; |
033a42c2 | 95 | int center = (p->print_what == SRC_LINE || p->print_what == SRC_AND_LOC); |
c906108c | 96 | |
033a42c2 MK |
97 | print_frame_info (p->frame, p->print_level, p->print_what, p->print_args); |
98 | set_current_sal_from_frame (p->frame, center); | |
c906108c SS |
99 | return 0; |
100 | } | |
101 | ||
033a42c2 | 102 | /* Show or print a stack frame FRAME briefly. The output is format |
d762c46a AC |
103 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
104 | relative level, function name, argument list, and file name and | |
105 | line number. If the frame's PC is not at the beginning of the | |
106 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
107 | |
108 | void | |
033a42c2 | 109 | print_stack_frame (struct frame_info *frame, int print_level, |
0faf0076 | 110 | enum print_what print_what) |
c906108c SS |
111 | { |
112 | struct print_stack_frame_args args; | |
113 | ||
033a42c2 | 114 | args.frame = frame; |
0faf0076 AC |
115 | args.print_level = print_level; |
116 | args.print_what = print_what; | |
aaf9e9fd DP |
117 | /* For mi, alway print location and address. */ |
118 | args.print_what = ui_out_is_mi_like_p (uiout) ? LOC_AND_ADDRESS : print_what; | |
0faf0076 | 119 | args.print_args = 1; |
c906108c | 120 | |
5c3ce3f7 | 121 | catch_errors (print_stack_frame_stub, &args, "", RETURN_MASK_ERROR); |
7789c6f5 | 122 | } |
c906108c | 123 | |
c5aa993b JM |
124 | struct print_args_args |
125 | { | |
c906108c | 126 | struct symbol *func; |
033a42c2 | 127 | struct frame_info *frame; |
d9fcf2fb | 128 | struct ui_file *stream; |
c906108c SS |
129 | }; |
130 | ||
033a42c2 | 131 | static int print_args_stub (void *args); |
c906108c | 132 | |
033a42c2 MK |
133 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
134 | the offset of the first nameless argument, and NUM is the number of | |
135 | nameless arguments to print. FIRST is nonzero if this is the first | |
136 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
137 | |
138 | static void | |
033a42c2 | 139 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
140 | int first, struct ui_file *stream) |
141 | { | |
142 | int i; | |
143 | CORE_ADDR argsaddr; | |
144 | long arg_value; | |
145 | ||
146 | for (i = 0; i < num; i++) | |
147 | { | |
148 | QUIT; | |
033a42c2 | 149 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
150 | if (!argsaddr) |
151 | return; | |
152 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
153 | if (!first) | |
154 | fprintf_filtered (stream, ", "); | |
155 | fprintf_filtered (stream, "%ld", arg_value); | |
156 | first = 0; | |
157 | start += sizeof (int); | |
158 | } | |
159 | } | |
160 | ||
88408340 JB |
161 | /* Return non-zero if the debugger should print the value of the provided |
162 | symbol parameter (SYM). */ | |
163 | ||
164 | static int | |
165 | print_this_frame_argument_p (struct symbol *sym) | |
166 | { | |
167 | struct type *type; | |
168 | ||
169 | /* If the user asked to print no argument at all, then obviously | |
170 | do not print this argument. */ | |
171 | ||
172 | if (strcmp (print_frame_arguments, "none") == 0) | |
173 | return 0; | |
174 | ||
175 | /* If the user asked to print all arguments, then we should print | |
176 | that one. */ | |
177 | ||
178 | if (strcmp (print_frame_arguments, "all") == 0) | |
179 | return 1; | |
180 | ||
181 | /* The user asked to print only the scalar arguments, so do not | |
182 | print the non-scalar ones. */ | |
183 | ||
78485d59 | 184 | type = check_typedef (SYMBOL_TYPE (sym)); |
0366cf3f | 185 | while (TYPE_CODE (type) == TYPE_CODE_REF) |
78485d59 | 186 | type = check_typedef (TYPE_TARGET_TYPE (type)); |
88408340 JB |
187 | switch (TYPE_CODE (type)) |
188 | { | |
189 | case TYPE_CODE_ARRAY: | |
190 | case TYPE_CODE_STRUCT: | |
191 | case TYPE_CODE_UNION: | |
192 | case TYPE_CODE_SET: | |
193 | case TYPE_CODE_STRING: | |
194 | case TYPE_CODE_BITSTRING: | |
195 | return 0; | |
196 | default: | |
197 | return 1; | |
198 | } | |
199 | } | |
200 | ||
033a42c2 MK |
201 | /* Print the arguments of frame FRAME on STREAM, given the function |
202 | FUNC running in that frame (as a symbol), where NUM is the number | |
203 | of arguments according to the stack frame (or -1 if the number of | |
204 | arguments is unknown). */ | |
8d3b0994 | 205 | |
e3168615 | 206 | /* Note that currently the "number of arguments according to the |
033a42c2 | 207 | stack frame" is only known on VAX where i refers to the "number of |
e3168615 | 208 | ints of arguments according to the stack frame". */ |
8d3b0994 AC |
209 | |
210 | static void | |
033a42c2 MK |
211 | print_frame_args (struct symbol *func, struct frame_info *frame, |
212 | int num, struct ui_file *stream) | |
8d3b0994 | 213 | { |
8d3b0994 | 214 | int first = 1; |
8d3b0994 | 215 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
216 | at the highest offset, or -1 if we haven't come to a stack |
217 | argument yet. */ | |
8d3b0994 | 218 | long highest_offset = -1; |
8d3b0994 AC |
219 | /* Number of ints of arguments that we have printed so far. */ |
220 | int args_printed = 0; | |
221 | struct cleanup *old_chain, *list_chain; | |
222 | struct ui_stream *stb; | |
223 | ||
224 | stb = ui_out_stream_new (uiout); | |
225 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
226 | ||
227 | if (func) | |
228 | { | |
033a42c2 MK |
229 | struct block *b = SYMBOL_BLOCK_VALUE (func); |
230 | struct dict_iterator iter; | |
231 | struct symbol *sym; | |
232 | struct value *val; | |
8d3b0994 | 233 | |
de4f826b | 234 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 AC |
235 | { |
236 | QUIT; | |
237 | ||
238 | /* Keep track of the highest stack argument offset seen, and | |
239 | skip over any kinds of symbols we don't care about. */ | |
240 | ||
2a2d4dc3 AS |
241 | if (!SYMBOL_IS_ARGUMENT (sym)) |
242 | continue; | |
243 | ||
8d3b0994 AC |
244 | switch (SYMBOL_CLASS (sym)) |
245 | { | |
246 | case LOC_ARG: | |
247 | case LOC_REF_ARG: | |
248 | { | |
249 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 250 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
251 | |
252 | /* Compute address of next argument by adding the size of | |
253 | this argument and rounding to an int boundary. */ | |
254 | current_offset = | |
255 | ((current_offset + arg_size + sizeof (int) - 1) | |
256 | & ~(sizeof (int) - 1)); | |
257 | ||
033a42c2 MK |
258 | /* If this is the highest offset seen yet, set |
259 | highest_offset. */ | |
8d3b0994 AC |
260 | if (highest_offset == -1 |
261 | || (current_offset > highest_offset)) | |
262 | highest_offset = current_offset; | |
263 | ||
033a42c2 MK |
264 | /* Add the number of ints we're about to print to |
265 | args_printed. */ | |
8d3b0994 AC |
266 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
267 | } | |
268 | ||
033a42c2 MK |
269 | /* We care about types of symbols, but don't need to |
270 | keep track of stack offsets in them. */ | |
2a2d4dc3 | 271 | case LOC_REGISTER: |
8d3b0994 | 272 | case LOC_REGPARM_ADDR: |
2a2d4dc3 AS |
273 | case LOC_COMPUTED: |
274 | case LOC_OPTIMIZED_OUT: | |
8d3b0994 | 275 | default: |
2a2d4dc3 | 276 | break; |
8d3b0994 AC |
277 | } |
278 | ||
279 | /* We have to look up the symbol because arguments can have | |
280 | two entries (one a parameter, one a local) and the one we | |
281 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 282 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
283 | small structure and gcc2 when the argument type is float |
284 | and it is passed as a double and converted to float by | |
285 | the prologue (in the latter case the type of the LOC_ARG | |
286 | symbol is double and the type of the LOC_LOCAL symbol is | |
287 | float). */ | |
033a42c2 MK |
288 | /* But if the parameter name is null, don't try it. Null |
289 | parameter names occur on the RS/6000, for traceback | |
290 | tables. FIXME, should we even print them? */ | |
8d3b0994 | 291 | |
3567439c | 292 | if (*SYMBOL_LINKAGE_NAME (sym)) |
8d3b0994 AC |
293 | { |
294 | struct symbol *nsym; | |
3567439c | 295 | nsym = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), |
2570f2b7 | 296 | b, VAR_DOMAIN, NULL); |
55765a25 | 297 | gdb_assert (nsym != NULL); |
2a2d4dc3 AS |
298 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER |
299 | && !SYMBOL_IS_ARGUMENT (nsym)) | |
8d3b0994 | 300 | { |
033a42c2 MK |
301 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
302 | that it was passed on the stack and loaded into a | |
303 | register, or passed in a register and stored in a | |
304 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
305 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
306 | |
307 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
308 | |
309 | (1) Because find_saved_registers may be slow for | |
310 | remote debugging. | |
311 | ||
312 | (2) Because registers are often re-used and stack | |
313 | slots rarely (never?) are. Therefore using | |
314 | the stack slot is much less likely to print | |
315 | garbage. | |
8d3b0994 AC |
316 | |
317 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
318 | |
319 | (1) So that the backtrace prints the same value | |
320 | as "print foo". I see no compelling reason | |
321 | why this needs to be the case; having the | |
322 | backtrace print the value which was passed | |
323 | in, and "print foo" print the value as | |
324 | modified within the called function, makes | |
325 | perfect sense to me. | |
326 | ||
327 | Additional note: It might be nice if "info args" | |
328 | displayed both values. | |
329 | ||
330 | One more note: There is a case with SPARC | |
331 | structure passing where we need to use the | |
332 | LOC_REGISTER, but this is dealt with by creating | |
333 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
334 | |
335 | /* Leave sym (the LOC_ARG) alone. */ | |
336 | ; | |
337 | } | |
338 | else | |
339 | sym = nsym; | |
340 | } | |
341 | ||
342 | /* Print the current arg. */ | |
343 | if (!first) | |
344 | ui_out_text (uiout, ", "); | |
345 | ui_out_wrap_hint (uiout, " "); | |
346 | ||
347 | annotate_arg_begin (); | |
348 | ||
349 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
350 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym), | |
033a42c2 MK |
351 | SYMBOL_LANGUAGE (sym), |
352 | DMGL_PARAMS | DMGL_ANSI); | |
8d3b0994 AC |
353 | ui_out_field_stream (uiout, "name", stb); |
354 | annotate_arg_name_end (); | |
355 | ui_out_text (uiout, "="); | |
356 | ||
88408340 JB |
357 | if (print_this_frame_argument_p (sym)) |
358 | { | |
359 | /* Avoid value_print because it will deref ref parameters. | |
360 | We just want to print their addresses. Print ??? for | |
361 | args whose address we do not know. We pass 2 as | |
362 | "recurse" to val_print because our standard indentation | |
363 | here is 4 spaces, and val_print indents 2 for each | |
364 | recurse. */ | |
365 | val = read_var_value (sym, frame); | |
366 | ||
367 | annotate_arg_value (val == NULL ? NULL : value_type (val)); | |
368 | ||
369 | if (val) | |
370 | { | |
d8ca156b | 371 | const struct language_defn *language; |
79a45b7d | 372 | struct value_print_options opts; |
d8ca156b JB |
373 | |
374 | /* Use the appropriate language to display our symbol, | |
375 | unless the user forced the language to a specific | |
376 | language. */ | |
377 | if (language_mode == language_mode_auto) | |
378 | language = language_def (SYMBOL_LANGUAGE (sym)); | |
379 | else | |
380 | language = current_language; | |
381 | ||
79a45b7d TT |
382 | get_raw_print_options (&opts); |
383 | opts.deref_ref = 0; | |
384 | common_val_print (val, stb->stream, 2, | |
385 | &opts, language); | |
88408340 JB |
386 | ui_out_field_stream (uiout, "value", stb); |
387 | } | |
388 | else | |
389 | ui_out_text (uiout, "???"); | |
390 | } | |
391 | else | |
392 | ui_out_text (uiout, "..."); | |
8d3b0994 | 393 | |
8d3b0994 AC |
394 | |
395 | /* Invoke ui_out_tuple_end. */ | |
396 | do_cleanups (list_chain); | |
397 | ||
398 | annotate_arg_end (); | |
399 | ||
400 | first = 0; | |
401 | } | |
402 | } | |
403 | ||
404 | /* Don't print nameless args in situations where we don't know | |
405 | enough about the stack to find them. */ | |
406 | if (num != -1) | |
407 | { | |
408 | long start; | |
409 | ||
410 | if (highest_offset == -1) | |
7500260a | 411 | start = gdbarch_frame_args_skip (get_frame_arch (frame)); |
8d3b0994 AC |
412 | else |
413 | start = highest_offset; | |
414 | ||
033a42c2 | 415 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
416 | first, stream); |
417 | } | |
033a42c2 | 418 | |
8d3b0994 AC |
419 | do_cleanups (old_chain); |
420 | } | |
421 | ||
033a42c2 | 422 | /* Stub for catch_errors. */ |
c906108c SS |
423 | |
424 | static int | |
4efb68b1 | 425 | print_args_stub (void *args) |
c906108c | 426 | { |
033a42c2 | 427 | struct print_args_args *p = args; |
12368003 | 428 | struct gdbarch *gdbarch = get_frame_arch (p->frame); |
c906108c | 429 | int numargs; |
c906108c | 430 | |
12368003 | 431 | if (gdbarch_frame_num_args_p (gdbarch)) |
983a287a | 432 | { |
12368003 | 433 | numargs = gdbarch_frame_num_args (gdbarch, p->frame); |
983a287a AC |
434 | gdb_assert (numargs >= 0); |
435 | } | |
436 | else | |
437 | numargs = -1; | |
033a42c2 | 438 | print_frame_args (p->func, p->frame, numargs, p->stream); |
c906108c SS |
439 | return 0; |
440 | } | |
441 | ||
033a42c2 MK |
442 | /* Set the current source and line to the location given by frame |
443 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
444 | line is in the center of the next 'list'. */ | |
c789492a | 445 | |
7abfe014 | 446 | void |
033a42c2 | 447 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
448 | { |
449 | struct symtab_and_line sal; | |
450 | ||
033a42c2 | 451 | find_frame_sal (frame, &sal); |
c789492a FL |
452 | if (sal.symtab) |
453 | { | |
454 | if (center) | |
455 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
456 | set_current_source_symtab_and_line (&sal); | |
457 | } | |
458 | } | |
459 | ||
30c33a9f HZ |
460 | /* If ON, GDB will display disassembly of the next source line when |
461 | execution of the program being debugged stops. | |
481df73e HZ |
462 | If AUTO (which is the default), or there's no line info to determine |
463 | the source line of the next instruction, display disassembly of next | |
464 | instruction instead. */ | |
30c33a9f HZ |
465 | |
466 | static enum auto_boolean disassemble_next_line; | |
467 | ||
468 | static void | |
469 | show_disassemble_next_line (struct ui_file *file, int from_tty, | |
470 | struct cmd_list_element *c, | |
471 | const char *value) | |
472 | { | |
473 | fprintf_filtered (file, _("\ | |
474 | Debugger's willingness to use disassemble-next-line is %s.\n"), | |
475 | value); | |
476 | } | |
477 | ||
478 | /* Show assembly codes; stub for catch_errors. */ | |
479 | ||
480 | struct gdb_disassembly_stub_args | |
481 | { | |
482 | int how_many; | |
483 | CORE_ADDR low; | |
484 | CORE_ADDR high; | |
485 | }; | |
486 | ||
487 | static void | |
488 | gdb_disassembly_stub (void *args) | |
489 | { | |
490 | struct gdb_disassembly_stub_args *p = args; | |
491 | gdb_disassembly (uiout, 0, 0, p->how_many, p->low, p->high); | |
492 | } | |
493 | ||
494 | /* Use TRY_CATCH to catch the exception from the gdb_disassembly | |
495 | because it will be broken by filter sometime. */ | |
496 | ||
497 | static void | |
498 | do_gdb_disassembly (int how_many, CORE_ADDR low, CORE_ADDR high) | |
499 | { | |
500 | volatile struct gdb_exception exception; | |
501 | struct gdb_disassembly_stub_args args; | |
502 | ||
503 | args.how_many = how_many; | |
504 | args.low = low; | |
505 | args.high = high; | |
506 | TRY_CATCH (exception, RETURN_MASK_ALL) | |
507 | { | |
508 | gdb_disassembly_stub (&args); | |
509 | } | |
510 | } | |
511 | ||
033a42c2 MK |
512 | /* Print information about frame FRAME. The output is format according |
513 | to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of | |
514 | PRINT_WHAT is: | |
515 | ||
516 | SRC_LINE: Print only source line. | |
517 | LOCATION: Print only location. | |
518 | LOC_AND_SRC: Print location and source line. | |
519 | ||
520 | Used in "where" output, and to emit breakpoint or step | |
521 | messages. */ | |
c906108c | 522 | |
7789c6f5 | 523 | void |
033a42c2 | 524 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 525 | enum print_what print_what, int print_args) |
c906108c SS |
526 | { |
527 | struct symtab_and_line sal; | |
c5394b80 JM |
528 | int source_print; |
529 | int location_print; | |
c906108c | 530 | |
033a42c2 MK |
531 | if (get_frame_type (frame) == DUMMY_FRAME |
532 | || get_frame_type (frame) == SIGTRAMP_FRAME) | |
c906108c | 533 | { |
075559bc AC |
534 | struct cleanup *uiout_cleanup |
535 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 536 | |
033a42c2 MK |
537 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
538 | get_frame_pc (frame)); | |
6a3fe0a4 | 539 | |
c906108c | 540 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 541 | to list for this frame. */ |
0faf0076 | 542 | if (print_level) |
52c6a6ac JJ |
543 | { |
544 | ui_out_text (uiout, "#"); | |
0faf0076 | 545 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 546 | frame_relative_level (frame)); |
52c6a6ac | 547 | } |
075559bc | 548 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 549 | { |
075559bc | 550 | annotate_frame_address (); |
033a42c2 | 551 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
075559bc | 552 | annotate_frame_address_end (); |
52c6a6ac | 553 | } |
6a3fe0a4 | 554 | |
033a42c2 | 555 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
556 | { |
557 | annotate_function_call (); | |
558 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
559 | } | |
033a42c2 | 560 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
561 | { |
562 | annotate_signal_handler_caller (); | |
563 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
564 | } | |
565 | ui_out_text (uiout, "\n"); | |
c906108c | 566 | annotate_frame_end (); |
075559bc AC |
567 | |
568 | do_cleanups (uiout_cleanup); | |
c906108c SS |
569 | return; |
570 | } | |
571 | ||
033a42c2 MK |
572 | /* If FRAME is not the innermost frame, that normally means that |
573 | FRAME->pc points to *after* the call instruction, and we want to | |
574 | get the line containing the call, never the next line. But if | |
575 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
576 | next frame was not entered as the result of a call, and we want | |
577 | to get the line containing FRAME->pc. */ | |
578 | find_frame_sal (frame, &sal); | |
c906108c | 579 | |
0faf0076 AC |
580 | location_print = (print_what == LOCATION |
581 | || print_what == LOC_AND_ADDRESS | |
582 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
583 | |
584 | if (location_print || !sal.symtab) | |
033a42c2 | 585 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 586 | |
0faf0076 | 587 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 588 | |
30c33a9f HZ |
589 | /* If disassemble-next-line is set to auto or on and doesn't have |
590 | the line debug messages for $pc, output the next instruction. */ | |
591 | if ((disassemble_next_line == AUTO_BOOLEAN_AUTO | |
592 | || disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
593 | && source_print && !sal.symtab) | |
594 | do_gdb_disassembly (1, get_frame_pc (frame), get_frame_pc (frame) + 1); | |
595 | ||
c5394b80 JM |
596 | if (source_print && sal.symtab) |
597 | { | |
598 | int done = 0; | |
0faf0076 | 599 | int mid_statement = ((print_what == SRC_LINE) |
033a42c2 | 600 | && (get_frame_pc (frame) != sal.pc)); |
c5394b80 JM |
601 | |
602 | if (annotation_level) | |
603 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 604 | get_frame_pc (frame)); |
c5394b80 JM |
605 | if (!done) |
606 | { | |
9a4105ab | 607 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
608 | deprecated_print_frame_info_listing_hook (sal.symtab, |
609 | sal.line, | |
610 | sal.line + 1, 0); | |
ba4bbdcb | 611 | else |
c5394b80 | 612 | { |
79a45b7d TT |
613 | struct value_print_options opts; |
614 | get_user_print_options (&opts); | |
ba4bbdcb KS |
615 | /* We used to do this earlier, but that is clearly |
616 | wrong. This function is used by many different | |
617 | parts of gdb, including normal_stop in infrun.c, | |
618 | which uses this to print out the current PC | |
619 | when we stepi/nexti into the middle of a source | |
620 | line. Only the command line really wants this | |
621 | behavior. Other UIs probably would like the | |
cbd3c883 | 622 | ability to decide for themselves if it is desired. */ |
79a45b7d | 623 | if (opts.addressprint && mid_statement) |
ba4bbdcb | 624 | { |
033a42c2 | 625 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
ba4bbdcb | 626 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
627 | } |
628 | ||
629 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 630 | } |
c5394b80 | 631 | } |
30c33a9f HZ |
632 | |
633 | /* If disassemble-next-line is set to on and there is line debug | |
634 | messages, output assembly codes for next line. */ | |
635 | if (disassemble_next_line == AUTO_BOOLEAN_TRUE) | |
636 | do_gdb_disassembly (-1, get_frame_pc (frame), sal.end); | |
c5394b80 JM |
637 | } |
638 | ||
0faf0076 | 639 | if (print_what != LOCATION) |
033a42c2 | 640 | set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line); |
c5394b80 JM |
641 | |
642 | annotate_frame_end (); | |
643 | ||
644 | gdb_flush (gdb_stdout); | |
645 | } | |
646 | ||
f8f6f20b TJB |
647 | /* Attempt to obtain the FUNNAME and FUNLANG of the function corresponding |
648 | to FRAME. */ | |
649 | void | |
650 | find_frame_funname (struct frame_info *frame, char **funname, | |
651 | enum language *funlang) | |
c5394b80 JM |
652 | { |
653 | struct symbol *func; | |
8b93c638 | 654 | |
f8f6f20b TJB |
655 | *funname = NULL; |
656 | *funlang = language_unknown; | |
c5394b80 | 657 | |
033a42c2 | 658 | func = find_pc_function (get_frame_address_in_block (frame)); |
c906108c SS |
659 | if (func) |
660 | { | |
661 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
662 | function (when we are in the first function in a file which |
663 | is compiled without debugging symbols, the previous function | |
664 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
665 | that is supposed to tell us where the file with debugging |
666 | symbols ends has been truncated by ar because it is longer | |
667 | than 15 characters). This also occurs if the user uses asm() | |
668 | to create a function but not stabs for it (in a file compiled | |
669 | with -g). | |
c5aa993b JM |
670 | |
671 | So look in the minimal symbol tables as well, and if it comes | |
672 | up with a larger address for the function use that instead. | |
033a42c2 MK |
673 | I don't think this can ever cause any problems; there |
674 | shouldn't be any minimal symbols in the middle of a function; | |
675 | if this is ever changed many parts of GDB will need to be | |
676 | changed (and we'll create a find_pc_minimal_function or some | |
677 | such). */ | |
678 | ||
679 | struct minimal_symbol *msymbol = | |
680 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 681 | |
c906108c | 682 | if (msymbol != NULL |
c5aa993b | 683 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
684 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
685 | { | |
c906108c SS |
686 | /* We also don't know anything about the function besides |
687 | its address and name. */ | |
688 | func = 0; | |
f8f6f20b TJB |
689 | *funname = SYMBOL_PRINT_NAME (msymbol); |
690 | *funlang = SYMBOL_LANGUAGE (msymbol); | |
c906108c SS |
691 | } |
692 | else | |
693 | { | |
f8f6f20b TJB |
694 | *funname = SYMBOL_PRINT_NAME (func); |
695 | *funlang = SYMBOL_LANGUAGE (func); | |
696 | if (*funlang == language_cplus) | |
c5aa993b | 697 | { |
033a42c2 MK |
698 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
699 | to display the demangled name that we already have | |
700 | stored in the symbol table, but we stored a version | |
701 | with DMGL_PARAMS turned on, and here we don't want to | |
3567439c | 702 | display parameters. So remove the parameters. */ |
f8f6f20b | 703 | char *func_only = cp_remove_params (*funname); |
3567439c DJ |
704 | if (func_only) |
705 | { | |
f8f6f20b | 706 | *funname = func_only; |
3567439c DJ |
707 | make_cleanup (xfree, func_only); |
708 | } | |
c5aa993b | 709 | } |
c906108c SS |
710 | } |
711 | } | |
712 | else | |
713 | { | |
033a42c2 MK |
714 | struct minimal_symbol *msymbol = |
715 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
716 | ||
c906108c SS |
717 | if (msymbol != NULL) |
718 | { | |
f8f6f20b TJB |
719 | *funname = SYMBOL_PRINT_NAME (msymbol); |
720 | *funlang = SYMBOL_LANGUAGE (msymbol); | |
c906108c SS |
721 | } |
722 | } | |
f8f6f20b TJB |
723 | } |
724 | ||
725 | static void | |
726 | print_frame (struct frame_info *frame, int print_level, | |
727 | enum print_what print_what, int print_args, | |
728 | struct symtab_and_line sal) | |
729 | { | |
730 | char *funname = NULL; | |
731 | enum language funlang = language_unknown; | |
732 | struct ui_stream *stb; | |
733 | struct cleanup *old_chain, *list_chain; | |
734 | struct value_print_options opts; | |
735 | ||
736 | stb = ui_out_stream_new (uiout); | |
737 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
738 | ||
739 | find_frame_funname (frame, &funname, &funlang); | |
c906108c | 740 | |
033a42c2 MK |
741 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
742 | get_frame_pc (frame)); | |
c5394b80 | 743 | |
666547aa | 744 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
c5394b80 | 745 | |
0faf0076 | 746 | if (print_level) |
8b93c638 | 747 | { |
8b93c638 | 748 | ui_out_text (uiout, "#"); |
0faf0076 | 749 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 750 | frame_relative_level (frame)); |
8b93c638 | 751 | } |
79a45b7d TT |
752 | get_user_print_options (&opts); |
753 | if (opts.addressprint) | |
033a42c2 | 754 | if (get_frame_pc (frame) != sal.pc || !sal.symtab |
0faf0076 | 755 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
756 | { |
757 | annotate_frame_address (); | |
033a42c2 | 758 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
8b93c638 JM |
759 | annotate_frame_address_end (); |
760 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
761 | } |
762 | annotate_frame_function_name (); | |
033a42c2 MK |
763 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
764 | funlang, DMGL_ANSI); | |
8b93c638 JM |
765 | ui_out_field_stream (uiout, "func", stb); |
766 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
767 | annotate_frame_args (); |
768 | ||
8b93c638 | 769 | ui_out_text (uiout, " ("); |
0faf0076 | 770 | if (print_args) |
c906108c | 771 | { |
c5394b80 | 772 | struct print_args_args args; |
d493eb33 | 773 | struct cleanup *args_list_chain; |
033a42c2 | 774 | args.frame = frame; |
f8f6f20b | 775 | args.func = find_pc_function (get_frame_address_in_block (frame)); |
c5394b80 | 776 | args.stream = gdb_stdout; |
68c81b54 | 777 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
5c3ce3f7 | 778 | catch_errors (print_args_stub, &args, "", RETURN_MASK_ERROR); |
033a42c2 MK |
779 | /* FIXME: ARGS must be a list. If one argument is a string it |
780 | will have " that will not be properly escaped. */ | |
666547aa | 781 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 782 | do_cleanups (args_list_chain); |
c5394b80 JM |
783 | QUIT; |
784 | } | |
8b93c638 | 785 | ui_out_text (uiout, ")"); |
c5394b80 JM |
786 | if (sal.symtab && sal.symtab->filename) |
787 | { | |
788 | annotate_frame_source_begin (); | |
8b93c638 JM |
789 | ui_out_wrap_hint (uiout, " "); |
790 | ui_out_text (uiout, " at "); | |
791 | annotate_frame_source_file (); | |
792 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
793 | if (ui_out_is_mi_like_p (uiout)) |
794 | { | |
795 | const char *fullname = symtab_to_fullname (sal.symtab); | |
796 | if (fullname != NULL) | |
797 | ui_out_field_string (uiout, "fullname", fullname); | |
798 | } | |
8b93c638 JM |
799 | annotate_frame_source_file_end (); |
800 | ui_out_text (uiout, ":"); | |
801 | annotate_frame_source_line (); | |
802 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
803 | annotate_frame_source_end (); |
804 | } | |
c906108c | 805 | |
c5394b80 | 806 | if (!funname || (!sal.symtab || !sal.symtab->filename)) |
c906108c | 807 | { |
a77053c2 | 808 | #ifdef PC_SOLIB |
033a42c2 | 809 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 810 | #else |
f5c9a895 | 811 | char *lib = solib_name_from_address (get_frame_pc (frame)); |
a77053c2 | 812 | #endif |
c5394b80 | 813 | if (lib) |
c906108c | 814 | { |
c5394b80 | 815 | annotate_frame_where (); |
8b93c638 JM |
816 | ui_out_wrap_hint (uiout, " "); |
817 | ui_out_text (uiout, " from "); | |
818 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 819 | } |
c906108c | 820 | } |
e514a9d6 | 821 | |
666547aa | 822 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 823 | do_cleanups (list_chain); |
8b93c638 JM |
824 | ui_out_text (uiout, "\n"); |
825 | do_cleanups (old_chain); | |
c906108c SS |
826 | } |
827 | \f | |
c5aa993b | 828 | |
033a42c2 MK |
829 | /* Read a frame specification in whatever the appropriate format is |
830 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
831 | specification is in any way invalid (so this function never returns | |
832 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
833 | the default selected frame was used. */ | |
c906108c | 834 | |
1c8831c5 AC |
835 | static struct frame_info * |
836 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
837 | int *selected_frame_p) | |
c906108c | 838 | { |
1c8831c5 AC |
839 | int numargs; |
840 | struct value *args[4]; | |
841 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 842 | |
1c8831c5 AC |
843 | if (frame_exp == NULL) |
844 | numargs = 0; | |
845 | else | |
c906108c | 846 | { |
1c8831c5 | 847 | char *addr_string; |
c906108c SS |
848 | struct cleanup *tmp_cleanup; |
849 | ||
1c8831c5 AC |
850 | numargs = 0; |
851 | while (1) | |
c906108c | 852 | { |
1c8831c5 AC |
853 | char *addr_string; |
854 | struct cleanup *cleanup; | |
855 | const char *p; | |
856 | ||
857 | /* Skip leading white space, bail of EOL. */ | |
858 | while (isspace (*frame_exp)) | |
859 | frame_exp++; | |
860 | if (!*frame_exp) | |
861 | break; | |
c906108c | 862 | |
1c8831c5 AC |
863 | /* Parse the argument, extract it, save it. */ |
864 | for (p = frame_exp; | |
865 | *p && !isspace (*p); | |
866 | p++); | |
867 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 868 | frame_exp = p; |
1c8831c5 AC |
869 | cleanup = make_cleanup (xfree, addr_string); |
870 | ||
871 | /* NOTE: Parse and evaluate expression, but do not use | |
872 | functions such as parse_and_eval_long or | |
873 | parse_and_eval_address to also extract the value. | |
874 | Instead value_as_long and value_as_address are used. | |
875 | This avoids problems with expressions that contain | |
876 | side-effects. */ | |
877 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 878 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
879 | args[numargs++] = parse_and_eval (addr_string); |
880 | ||
881 | do_cleanups (cleanup); | |
c906108c SS |
882 | } |
883 | } | |
884 | ||
1c8831c5 AC |
885 | /* If no args, default to the selected frame. */ |
886 | if (numargs == 0) | |
c906108c | 887 | { |
1c8831c5 AC |
888 | if (selected_frame_p != NULL) |
889 | (*selected_frame_p) = 1; | |
890 | return get_selected_frame (message); | |
891 | } | |
c906108c | 892 | |
1c8831c5 AC |
893 | /* None of the remaining use the selected frame. */ |
894 | if (selected_frame_p != NULL) | |
98f276a0 | 895 | (*selected_frame_p) = 0; |
c906108c | 896 | |
1c8831c5 AC |
897 | /* Assume the single arg[0] is an integer, and try using that to |
898 | select a frame relative to current. */ | |
899 | if (numargs == 1) | |
900 | { | |
901 | struct frame_info *fid; | |
902 | int level = value_as_long (args[0]); | |
903 | fid = find_relative_frame (get_current_frame (), &level); | |
904 | if (level == 0) | |
905 | /* find_relative_frame was successful */ | |
906 | return fid; | |
907 | } | |
c906108c | 908 | |
1c8831c5 AC |
909 | /* Convert each value into a corresponding address. */ |
910 | { | |
911 | int i; | |
912 | for (i = 0; i < numargs; i++) | |
1e275f79 | 913 | addrs[i] = value_as_address (args[i]); |
1c8831c5 | 914 | } |
c5aa993b | 915 | |
1c8831c5 AC |
916 | /* Assume that the single arg[0] is an address, use that to identify |
917 | a frame with a matching ID. Should this also accept stack/pc or | |
918 | stack/pc/special. */ | |
919 | if (numargs == 1) | |
920 | { | |
921 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
922 | struct frame_info *fid; | |
923 | ||
1c8831c5 AC |
924 | /* If (s)he specifies the frame with an address, he deserves |
925 | what (s)he gets. Still, give the highest one that matches. | |
926 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
927 | know). */ | |
928 | for (fid = get_current_frame (); | |
929 | fid != NULL; | |
930 | fid = get_prev_frame (fid)) | |
931 | { | |
932 | if (frame_id_eq (id, get_frame_id (fid))) | |
933 | { | |
eb2f4a08 DJ |
934 | while (frame_id_eq (id, frame_unwind_id (fid))) |
935 | fid = get_prev_frame (fid); | |
1c8831c5 AC |
936 | return fid; |
937 | } | |
938 | } | |
c906108c SS |
939 | } |
940 | ||
1c8831c5 AC |
941 | /* We couldn't identify the frame as an existing frame, but |
942 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
943 | if (numargs == 1) |
944 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
945 | else if (numargs == 2) |
946 | return create_new_frame (addrs[0], addrs[1]); | |
947 | else | |
8a3fe4f8 | 948 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
949 | } |
950 | ||
9c833c82 | 951 | static struct frame_info * |
1c8831c5 AC |
952 | parse_frame_specification (char *frame_exp) |
953 | { | |
954 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
955 | } |
956 | ||
033a42c2 MK |
957 | /* Print verbosely the selected frame or the frame at address |
958 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
959 | |
960 | static void | |
fba45db2 | 961 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
962 | { |
963 | struct frame_info *fi; | |
964 | struct symtab_and_line sal; | |
965 | struct symbol *func; | |
966 | struct symtab *s; | |
967 | struct frame_info *calling_frame_info; | |
968 | int i, count, numregs; | |
969 | char *funname = 0; | |
970 | enum language funlang = language_unknown; | |
82de1e5b | 971 | const char *pc_regname; |
1c8831c5 | 972 | int selected_frame_p; |
7500260a | 973 | struct gdbarch *gdbarch; |
3567439c | 974 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 975 | |
1c8831c5 | 976 | fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p); |
12368003 | 977 | gdbarch = get_frame_arch (fi); |
c906108c | 978 | |
82de1e5b AC |
979 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
980 | is not a good name. */ | |
12368003 | 981 | if (gdbarch_pc_regnum (gdbarch) >= 0) |
3e8c568d | 982 | /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can |
82de1e5b AC |
983 | easily not match that of the internal value returned by |
984 | get_frame_pc(). */ | |
12368003 | 985 | pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch)); |
82de1e5b | 986 | else |
3e8c568d | 987 | /* But then, this is weird to. Even without gdbarch_pc_regnum, an |
82de1e5b AC |
988 | architectures will often have a hardware register called "pc", |
989 | and that register's value, again, can easily not match | |
990 | get_frame_pc(). */ | |
991 | pc_regname = "pc"; | |
992 | ||
1058bca7 | 993 | find_frame_sal (fi, &sal); |
c906108c | 994 | func = get_frame_function (fi); |
1058bca7 | 995 | /* FIXME: cagney/2002-11-28: Why bother? Won't sal.symtab contain |
033a42c2 | 996 | the same value? */ |
bdd78e62 | 997 | s = find_pc_symtab (get_frame_pc (fi)); |
c906108c SS |
998 | if (func) |
999 | { | |
3567439c | 1000 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b JM |
1001 | funlang = SYMBOL_LANGUAGE (func); |
1002 | if (funlang == language_cplus) | |
1003 | { | |
3567439c DJ |
1004 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
1005 | to display the demangled name that we already have | |
1006 | stored in the symbol table, but we stored a version | |
1007 | with DMGL_PARAMS turned on, and here we don't want to | |
1008 | display parameters. So remove the parameters. */ | |
1009 | char *func_only = cp_remove_params (funname); | |
1010 | if (func_only) | |
1011 | { | |
1012 | funname = func_only; | |
1013 | make_cleanup (xfree, func_only); | |
1014 | } | |
c5aa993b | 1015 | } |
c906108c SS |
1016 | } |
1017 | else | |
1018 | { | |
033a42c2 MK |
1019 | struct minimal_symbol *msymbol; |
1020 | ||
1021 | msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c906108c SS |
1022 | if (msymbol != NULL) |
1023 | { | |
3567439c | 1024 | funname = SYMBOL_PRINT_NAME (msymbol); |
c906108c SS |
1025 | funlang = SYMBOL_LANGUAGE (msymbol); |
1026 | } | |
1027 | } | |
1028 | calling_frame_info = get_prev_frame (fi); | |
1029 | ||
1c8831c5 | 1030 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 1031 | { |
a3f17187 | 1032 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 1033 | frame_relative_level (fi)); |
c906108c SS |
1034 | } |
1035 | else | |
1036 | { | |
a3f17187 | 1037 | printf_filtered (_("Stack frame at ")); |
c906108c | 1038 | } |
ed49a04f | 1039 | fputs_filtered (paddress (get_frame_base (fi)), gdb_stdout); |
9c833c82 | 1040 | printf_filtered (":\n"); |
82de1e5b | 1041 | printf_filtered (" %s = ", pc_regname); |
ed49a04f | 1042 | fputs_filtered (paddress (get_frame_pc (fi)), gdb_stdout); |
c906108c SS |
1043 | |
1044 | wrap_here (" "); | |
1045 | if (funname) | |
1046 | { | |
1047 | printf_filtered (" in "); | |
1048 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
1049 | DMGL_ANSI | DMGL_PARAMS); | |
1050 | } | |
1051 | wrap_here (" "); | |
1052 | if (sal.symtab) | |
1053 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
1054 | puts_filtered ("; "); | |
1055 | wrap_here (" "); | |
82de1e5b | 1056 | printf_filtered ("saved %s ", pc_regname); |
eb2f4a08 | 1057 | fputs_filtered (paddress (frame_pc_unwind (fi)), gdb_stdout); |
c906108c SS |
1058 | printf_filtered ("\n"); |
1059 | ||
55feb689 DJ |
1060 | if (calling_frame_info == NULL) |
1061 | { | |
1062 | enum unwind_stop_reason reason; | |
1063 | ||
1064 | reason = get_frame_unwind_stop_reason (fi); | |
1065 | if (reason != UNWIND_NO_REASON) | |
1066 | printf_filtered (_(" Outermost frame: %s\n"), | |
1067 | frame_stop_reason_string (reason)); | |
1068 | } | |
1069 | ||
c906108c SS |
1070 | if (calling_frame_info) |
1071 | { | |
1072 | printf_filtered (" called by frame at "); | |
ed49a04f MD |
1073 | fputs_filtered (paddress (get_frame_base (calling_frame_info)), |
1074 | gdb_stdout); | |
c906108c | 1075 | } |
75e3c1f9 | 1076 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
1077 | puts_filtered (","); |
1078 | wrap_here (" "); | |
75e3c1f9 | 1079 | if (get_next_frame (fi)) |
c906108c SS |
1080 | { |
1081 | printf_filtered (" caller of frame at "); | |
ed49a04f MD |
1082 | fputs_filtered (paddress (get_frame_base (get_next_frame (fi))), |
1083 | gdb_stdout); | |
c906108c | 1084 | } |
75e3c1f9 | 1085 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 1086 | puts_filtered ("\n"); |
55feb689 | 1087 | |
c906108c | 1088 | if (s) |
1058bca7 AC |
1089 | printf_filtered (" source language %s.\n", |
1090 | language_str (s->language)); | |
c906108c | 1091 | |
c906108c SS |
1092 | { |
1093 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 1094 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
1095 | /* Number of args for this frame, or -1 if unknown. */ |
1096 | int numargs; | |
1097 | ||
1098 | if (arg_list == 0) | |
1099 | printf_filtered (" Arglist at unknown address.\n"); | |
1100 | else | |
1101 | { | |
1102 | printf_filtered (" Arglist at "); | |
ed49a04f | 1103 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1104 | printf_filtered (","); |
1105 | ||
7500260a | 1106 | if (!gdbarch_frame_num_args_p (gdbarch)) |
983a287a AC |
1107 | { |
1108 | numargs = -1; | |
1109 | puts_filtered (" args: "); | |
1110 | } | |
c906108c | 1111 | else |
983a287a | 1112 | { |
7500260a | 1113 | numargs = gdbarch_frame_num_args (gdbarch, fi); |
983a287a AC |
1114 | gdb_assert (numargs >= 0); |
1115 | if (numargs == 0) | |
1116 | puts_filtered (" no args."); | |
1117 | else if (numargs == 1) | |
1118 | puts_filtered (" 1 arg: "); | |
1119 | else | |
1120 | printf_filtered (" %d args: ", numargs); | |
1121 | } | |
c906108c SS |
1122 | print_frame_args (func, fi, numargs, gdb_stdout); |
1123 | puts_filtered ("\n"); | |
1124 | } | |
1125 | } | |
1126 | { | |
1127 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 1128 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
1129 | |
1130 | if (arg_list == 0) | |
1131 | printf_filtered (" Locals at unknown address,"); | |
1132 | else | |
1133 | { | |
1134 | printf_filtered (" Locals at "); | |
ed49a04f | 1135 | fputs_filtered (paddress (arg_list), gdb_stdout); |
c906108c SS |
1136 | printf_filtered (","); |
1137 | } | |
1138 | } | |
1139 | ||
4f460812 AC |
1140 | /* Print as much information as possible on the location of all the |
1141 | registers. */ | |
1142 | { | |
1143 | enum lval_type lval; | |
1144 | int optimized; | |
1145 | CORE_ADDR addr; | |
1146 | int realnum; | |
1147 | int count; | |
1148 | int i; | |
1149 | int need_nl = 1; | |
1150 | ||
1151 | /* The sp is special; what's displayed isn't the save address, but | |
1152 | the value of the previous frame's sp. This is a legacy thing, | |
1153 | at one stage the frame cached the previous frame's SP instead | |
1154 | of its address, hence it was easiest to just display the cached | |
1155 | value. */ | |
7500260a | 1156 | if (gdbarch_sp_regnum (gdbarch) >= 0) |
4f460812 AC |
1157 | { |
1158 | /* Find out the location of the saved stack pointer with out | |
1159 | actually evaluating it. */ | |
7500260a | 1160 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1161 | &optimized, &lval, &addr, |
4f460812 AC |
1162 | &realnum, NULL); |
1163 | if (!optimized && lval == not_lval) | |
c906108c | 1164 | { |
10c42a71 | 1165 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 | 1166 | CORE_ADDR sp; |
7500260a | 1167 | frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch), |
3e8c568d | 1168 | &optimized, &lval, &addr, |
4f460812 | 1169 | &realnum, value); |
af1342ab AC |
1170 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1171 | stack pointer was packed as an unsigned integer. That | |
1172 | may or may not be valid. */ | |
3e8c568d | 1173 | sp = extract_unsigned_integer (value, |
7500260a UW |
1174 | register_size (gdbarch, |
1175 | gdbarch_sp_regnum (gdbarch))); | |
4f460812 | 1176 | printf_filtered (" Previous frame's sp is "); |
ed49a04f | 1177 | fputs_filtered (paddress (sp), gdb_stdout); |
4f460812 AC |
1178 | printf_filtered ("\n"); |
1179 | need_nl = 0; | |
c906108c | 1180 | } |
4f460812 AC |
1181 | else if (!optimized && lval == lval_memory) |
1182 | { | |
1183 | printf_filtered (" Previous frame's sp at "); | |
ed49a04f | 1184 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1185 | printf_filtered ("\n"); |
1186 | need_nl = 0; | |
1187 | } | |
1188 | else if (!optimized && lval == lval_register) | |
1189 | { | |
1190 | printf_filtered (" Previous frame's sp in %s\n", | |
7500260a | 1191 | gdbarch_register_name (gdbarch, realnum)); |
4f460812 AC |
1192 | need_nl = 0; |
1193 | } | |
1194 | /* else keep quiet. */ | |
1195 | } | |
1196 | ||
1197 | count = 0; | |
7500260a UW |
1198 | numregs = gdbarch_num_regs (gdbarch) |
1199 | + gdbarch_num_pseudo_regs (gdbarch); | |
4f460812 | 1200 | for (i = 0; i < numregs; i++) |
7500260a UW |
1201 | if (i != gdbarch_sp_regnum (gdbarch) |
1202 | && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) | |
4f460812 AC |
1203 | { |
1204 | /* Find out the location of the saved register without | |
1205 | fetching the corresponding value. */ | |
1206 | frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum, | |
1207 | NULL); | |
1208 | /* For moment, only display registers that were saved on the | |
1209 | stack. */ | |
1210 | if (!optimized && lval == lval_memory) | |
1211 | { | |
1212 | if (count == 0) | |
1213 | puts_filtered (" Saved registers:\n "); | |
1214 | else | |
1215 | puts_filtered (","); | |
1216 | wrap_here (" "); | |
c9f4d572 | 1217 | printf_filtered (" %s at ", |
7500260a | 1218 | gdbarch_register_name (gdbarch, i)); |
ed49a04f | 1219 | fputs_filtered (paddress (addr), gdb_stdout); |
4f460812 AC |
1220 | count++; |
1221 | } | |
1222 | } | |
1223 | if (count || need_nl) | |
c906108c | 1224 | puts_filtered ("\n"); |
4f460812 | 1225 | } |
3567439c DJ |
1226 | |
1227 | do_cleanups (back_to); | |
c906108c SS |
1228 | } |
1229 | ||
033a42c2 MK |
1230 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1231 | frames. */ | |
c906108c SS |
1232 | |
1233 | static void | |
fba45db2 | 1234 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1235 | { |
1236 | struct frame_info *fi; | |
52f0bd74 AC |
1237 | int count; |
1238 | int i; | |
1239 | struct frame_info *trailing; | |
1240 | int trailing_level; | |
c906108c SS |
1241 | |
1242 | if (!target_has_stack) | |
8a3fe4f8 | 1243 | error (_("No stack.")); |
c906108c | 1244 | |
033a42c2 MK |
1245 | /* The following code must do two things. First, it must set the |
1246 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1247 | printing. Second, it must set the variable count to the number |
1248 | of frames which we should print, or -1 if all of them. */ | |
1249 | trailing = get_current_frame (); | |
d082b2bb AC |
1250 | |
1251 | /* The target can be in a state where there is no valid frames | |
1252 | (e.g., just connected). */ | |
1253 | if (trailing == NULL) | |
8a3fe4f8 | 1254 | error (_("No stack.")); |
d082b2bb | 1255 | |
c906108c SS |
1256 | trailing_level = 0; |
1257 | if (count_exp) | |
1258 | { | |
bb518678 | 1259 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1260 | if (count < 0) |
1261 | { | |
1262 | struct frame_info *current; | |
1263 | ||
1264 | count = -count; | |
1265 | ||
1266 | current = trailing; | |
1267 | while (current && count--) | |
1268 | { | |
1269 | QUIT; | |
1270 | current = get_prev_frame (current); | |
1271 | } | |
c5aa993b | 1272 | |
033a42c2 MK |
1273 | /* Will stop when CURRENT reaches the top of the stack. |
1274 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1275 | while (current) |
1276 | { | |
1277 | QUIT; | |
1278 | trailing = get_prev_frame (trailing); | |
1279 | current = get_prev_frame (current); | |
1280 | trailing_level++; | |
1281 | } | |
c5aa993b | 1282 | |
c906108c SS |
1283 | count = -1; |
1284 | } | |
1285 | } | |
1286 | else | |
1287 | count = -1; | |
1288 | ||
1289 | if (info_verbose) | |
1290 | { | |
1291 | struct partial_symtab *ps; | |
c5aa993b | 1292 | |
033a42c2 MK |
1293 | /* Read in symbols for all of the frames. Need to do this in a |
1294 | separate pass so that "Reading in symbols for xxx" messages | |
1295 | don't screw up the appearance of the backtrace. Also if | |
1296 | people have strong opinions against reading symbols for | |
c5aa993b | 1297 | backtrace this may have to be an option. */ |
c906108c | 1298 | i = count; |
033a42c2 | 1299 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c SS |
1300 | { |
1301 | QUIT; | |
c4a09524 | 1302 | ps = find_pc_psymtab (get_frame_address_in_block (fi)); |
c906108c | 1303 | if (ps) |
033a42c2 | 1304 | PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */ |
c906108c SS |
1305 | } |
1306 | } | |
1307 | ||
033a42c2 | 1308 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1309 | { |
1310 | QUIT; | |
1311 | ||
1312 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1313 | means further attempts to backtrace would fail (on the other |
1314 | hand, perhaps the code does or could be fixed to make sure | |
1315 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1316 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1317 | if (show_locals) |
c5aa993b | 1318 | print_frame_local_vars (fi, 1, gdb_stdout); |
55feb689 DJ |
1319 | |
1320 | /* Save the last frame to check for error conditions. */ | |
1321 | trailing = fi; | |
c906108c SS |
1322 | } |
1323 | ||
1324 | /* If we've stopped before the end, mention that. */ | |
1325 | if (fi && from_tty) | |
a3f17187 | 1326 | printf_filtered (_("(More stack frames follow...)\n")); |
55feb689 DJ |
1327 | |
1328 | /* If we've run out of frames, and the reason appears to be an error | |
1329 | condition, print it. */ | |
1330 | if (fi == NULL && trailing != NULL) | |
1331 | { | |
1332 | enum unwind_stop_reason reason; | |
1333 | ||
1334 | reason = get_frame_unwind_stop_reason (trailing); | |
1335 | if (reason > UNWIND_FIRST_ERROR) | |
1336 | printf_filtered (_("Backtrace stopped: %s\n"), | |
1337 | frame_stop_reason_string (reason)); | |
1338 | } | |
c906108c SS |
1339 | } |
1340 | ||
d75e3c94 | 1341 | struct backtrace_command_args |
033a42c2 MK |
1342 | { |
1343 | char *count_exp; | |
1344 | int show_locals; | |
1345 | int from_tty; | |
1346 | }; | |
1347 | ||
1348 | /* Stub for catch_errors. */ | |
d75e3c94 | 1349 | |
d75e3c94 JJ |
1350 | static int |
1351 | backtrace_command_stub (void *data) | |
1352 | { | |
033a42c2 | 1353 | struct backtrace_command_args *args = data; |
d75e3c94 JJ |
1354 | backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty); |
1355 | return 0; | |
1356 | } | |
1357 | ||
c906108c | 1358 | static void |
fba45db2 | 1359 | backtrace_command (char *arg, int from_tty) |
c906108c | 1360 | { |
033a42c2 MK |
1361 | struct cleanup *old_chain = NULL; |
1362 | int fulltrace_arg = -1, arglen = 0, argc = 0; | |
d75e3c94 | 1363 | struct backtrace_command_args btargs; |
c906108c | 1364 | |
033a42c2 | 1365 | if (arg) |
c906108c | 1366 | { |
033a42c2 | 1367 | char **argv; |
c906108c SS |
1368 | int i; |
1369 | ||
d1a41061 | 1370 | argv = gdb_buildargv (arg); |
7a292a7a | 1371 | old_chain = make_cleanup_freeargv (argv); |
c906108c | 1372 | argc = 0; |
033a42c2 | 1373 | for (i = 0; argv[i]; i++) |
c5aa993b | 1374 | { |
745b8ca0 | 1375 | unsigned int j; |
c5aa993b | 1376 | |
033a42c2 | 1377 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1378 | argv[i][j] = tolower (argv[i][j]); |
1379 | ||
033a42c2 MK |
1380 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1381 | fulltrace_arg = argc; | |
c5aa993b JM |
1382 | else |
1383 | { | |
033a42c2 | 1384 | arglen += strlen (argv[i]); |
c5aa993b | 1385 | argc++; |
c5aa993b JM |
1386 | } |
1387 | } | |
033a42c2 MK |
1388 | arglen += argc; |
1389 | if (fulltrace_arg >= 0) | |
c5aa993b | 1390 | { |
033a42c2 | 1391 | if (arglen > 0) |
c5aa993b | 1392 | { |
033a42c2 MK |
1393 | arg = xmalloc (arglen + 1); |
1394 | memset (arg, 0, arglen + 1); | |
1395 | for (i = 0; i < (argc + 1); i++) | |
c5aa993b | 1396 | { |
033a42c2 | 1397 | if (i != fulltrace_arg) |
c5aa993b | 1398 | { |
033a42c2 MK |
1399 | strcat (arg, argv[i]); |
1400 | strcat (arg, " "); | |
c5aa993b JM |
1401 | } |
1402 | } | |
1403 | } | |
1404 | else | |
033a42c2 | 1405 | arg = NULL; |
c5aa993b | 1406 | } |
c906108c SS |
1407 | } |
1408 | ||
033a42c2 MK |
1409 | btargs.count_exp = arg; |
1410 | btargs.show_locals = (fulltrace_arg >= 0); | |
d75e3c94 | 1411 | btargs.from_tty = from_tty; |
033a42c2 | 1412 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1413 | |
033a42c2 MK |
1414 | if (fulltrace_arg >= 0 && arglen > 0) |
1415 | xfree (arg); | |
c906108c SS |
1416 | |
1417 | if (old_chain) | |
c5aa993b | 1418 | do_cleanups (old_chain); |
c906108c SS |
1419 | } |
1420 | ||
1421 | static void | |
fba45db2 | 1422 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1423 | { |
d75e3c94 JJ |
1424 | struct backtrace_command_args btargs; |
1425 | btargs.count_exp = arg; | |
1426 | btargs.show_locals = 1; | |
1427 | btargs.from_tty = from_tty; | |
033a42c2 | 1428 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1429 | } |
c906108c | 1430 | \f |
c5aa993b | 1431 | |
033a42c2 | 1432 | /* Print the local variables of a block B active in FRAME on STREAM. |
c906108c SS |
1433 | Return 1 if any variables were printed; 0 otherwise. */ |
1434 | ||
1435 | static int | |
033a42c2 | 1436 | print_block_frame_locals (struct block *b, struct frame_info *frame, |
de4f826b | 1437 | int num_tabs, struct ui_file *stream) |
c906108c | 1438 | { |
de4f826b | 1439 | struct dict_iterator iter; |
de4f826b DC |
1440 | struct symbol *sym; |
1441 | int values_printed = 0; | |
033a42c2 | 1442 | int j; |
c906108c | 1443 | |
de4f826b | 1444 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1445 | { |
c906108c SS |
1446 | switch (SYMBOL_CLASS (sym)) |
1447 | { | |
1448 | case LOC_LOCAL: | |
1449 | case LOC_REGISTER: | |
1450 | case LOC_STATIC: | |
4c2df51b | 1451 | case LOC_COMPUTED: |
2a2d4dc3 AS |
1452 | if (SYMBOL_IS_ARGUMENT (sym)) |
1453 | break; | |
c906108c | 1454 | values_printed = 1; |
aad95b57 | 1455 | print_variable_and_value (NULL, sym, frame, stream, 4 * num_tabs); |
c906108c SS |
1456 | break; |
1457 | ||
1458 | default: | |
1459 | /* Ignore symbols which are not locals. */ | |
1460 | break; | |
1461 | } | |
1462 | } | |
033a42c2 | 1463 | |
c906108c SS |
1464 | return values_printed; |
1465 | } | |
1466 | ||
1467 | /* Same, but print labels. */ | |
1468 | ||
1469 | static int | |
fba45db2 | 1470 | print_block_frame_labels (struct block *b, int *have_default, |
aa1ee363 | 1471 | struct ui_file *stream) |
c906108c | 1472 | { |
de4f826b | 1473 | struct dict_iterator iter; |
52f0bd74 AC |
1474 | struct symbol *sym; |
1475 | int values_printed = 0; | |
c906108c | 1476 | |
de4f826b | 1477 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1478 | { |
3567439c | 1479 | if (strcmp (SYMBOL_LINKAGE_NAME (sym), "default") == 0) |
c906108c SS |
1480 | { |
1481 | if (*have_default) | |
1482 | continue; | |
1483 | *have_default = 1; | |
1484 | } | |
1485 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1486 | { | |
1487 | struct symtab_and_line sal; | |
79a45b7d | 1488 | struct value_print_options opts; |
c906108c SS |
1489 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); |
1490 | values_printed = 1; | |
de5ad195 | 1491 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
79a45b7d TT |
1492 | get_user_print_options (&opts); |
1493 | if (opts.addressprint) | |
c906108c SS |
1494 | { |
1495 | fprintf_filtered (stream, " "); | |
ed49a04f | 1496 | fputs_filtered (paddress (SYMBOL_VALUE_ADDRESS (sym)), stream); |
c906108c SS |
1497 | } |
1498 | fprintf_filtered (stream, " in file %s, line %d\n", | |
1499 | sal.symtab->filename, sal.line); | |
1500 | } | |
1501 | } | |
033a42c2 | 1502 | |
c906108c SS |
1503 | return values_printed; |
1504 | } | |
1505 | ||
033a42c2 MK |
1506 | /* Print on STREAM all the local variables in frame FRAME, including |
1507 | all the blocks active in that frame at its current PC. | |
c906108c | 1508 | |
033a42c2 MK |
1509 | Returns 1 if the job was done, or 0 if nothing was printed because |
1510 | we have no info on the function running in FRAME. */ | |
c906108c SS |
1511 | |
1512 | static void | |
033a42c2 | 1513 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 1514 | struct ui_file *stream) |
c906108c | 1515 | { |
033a42c2 | 1516 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1517 | int values_printed = 0; |
c906108c SS |
1518 | |
1519 | if (block == 0) | |
1520 | { | |
1521 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1522 | return; | |
1523 | } | |
c5aa993b | 1524 | |
033a42c2 | 1525 | while (block) |
c906108c | 1526 | { |
033a42c2 | 1527 | if (print_block_frame_locals (block, frame, num_tabs, stream)) |
c906108c | 1528 | values_printed = 1; |
033a42c2 MK |
1529 | /* After handling the function's top-level block, stop. Don't |
1530 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1531 | if (BLOCK_FUNCTION (block)) |
1532 | break; | |
1533 | block = BLOCK_SUPERBLOCK (block); | |
1534 | } | |
1535 | ||
1536 | if (!values_printed) | |
033a42c2 | 1537 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
1538 | } |
1539 | ||
1540 | /* Same, but print labels. */ | |
1541 | ||
1542 | static void | |
033a42c2 | 1543 | print_frame_label_vars (struct frame_info *frame, int this_level_only, |
aa1ee363 | 1544 | struct ui_file *stream) |
c906108c | 1545 | { |
801e3a5b JB |
1546 | #if 1 |
1547 | fprintf_filtered (stream, "print_frame_label_vars disabled.\n"); | |
1548 | #else | |
52f0bd74 | 1549 | struct blockvector *bl; |
033a42c2 | 1550 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1551 | int values_printed = 0; |
c906108c SS |
1552 | int index, have_default = 0; |
1553 | char *blocks_printed; | |
033a42c2 | 1554 | CORE_ADDR pc = get_frame_pc (frame); |
c906108c SS |
1555 | |
1556 | if (block == 0) | |
1557 | { | |
1558 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1559 | return; | |
1560 | } | |
1561 | ||
1562 | bl = blockvector_for_pc (BLOCK_END (block) - 4, &index); | |
033a42c2 | 1563 | blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
c906108c SS |
1564 | memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
1565 | ||
1566 | while (block != 0) | |
1567 | { | |
1568 | CORE_ADDR end = BLOCK_END (block) - 4; | |
1569 | int last_index; | |
1570 | ||
1571 | if (bl != blockvector_for_pc (end, &index)) | |
8a3fe4f8 | 1572 | error (_("blockvector blotch")); |
c906108c | 1573 | if (BLOCKVECTOR_BLOCK (bl, index) != block) |
8a3fe4f8 | 1574 | error (_("blockvector botch")); |
c906108c SS |
1575 | last_index = BLOCKVECTOR_NBLOCKS (bl); |
1576 | index += 1; | |
1577 | ||
1578 | /* Don't print out blocks that have gone by. */ | |
1579 | while (index < last_index | |
1580 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc) | |
1581 | index++; | |
1582 | ||
1583 | while (index < last_index | |
1584 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end) | |
1585 | { | |
1586 | if (blocks_printed[index] == 0) | |
1587 | { | |
033a42c2 MK |
1588 | if (print_block_frame_labels (BLOCKVECTOR_BLOCK (bl, index), |
1589 | &have_default, stream)) | |
c906108c SS |
1590 | values_printed = 1; |
1591 | blocks_printed[index] = 1; | |
1592 | } | |
1593 | index++; | |
1594 | } | |
1595 | if (have_default) | |
1596 | return; | |
1597 | if (values_printed && this_level_only) | |
1598 | return; | |
1599 | ||
033a42c2 MK |
1600 | /* After handling the function's top-level block, stop. Don't |
1601 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1602 | if (BLOCK_FUNCTION (block)) |
1603 | break; | |
1604 | block = BLOCK_SUPERBLOCK (block); | |
1605 | } | |
1606 | ||
1607 | if (!values_printed && !this_level_only) | |
033a42c2 | 1608 | fprintf_filtered (stream, _("No catches.\n")); |
801e3a5b | 1609 | #endif |
c906108c SS |
1610 | } |
1611 | ||
c906108c | 1612 | void |
fba45db2 | 1613 | locals_info (char *args, int from_tty) |
c906108c | 1614 | { |
033a42c2 | 1615 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1616 | 0, gdb_stdout); |
c906108c SS |
1617 | } |
1618 | ||
1619 | static void | |
fba45db2 | 1620 | catch_info (char *ignore, int from_tty) |
c906108c | 1621 | { |
c5aa993b | 1622 | struct symtab_and_line *sal; |
c906108c | 1623 | |
dfdfb3ca JB |
1624 | /* Assume g++ compiled code; old GDB 4.16 behaviour. */ |
1625 | print_frame_label_vars (get_selected_frame (_("No frame selected.")), | |
1626 | 0, gdb_stdout); | |
c906108c SS |
1627 | } |
1628 | ||
1629 | static void | |
033a42c2 | 1630 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) |
c906108c | 1631 | { |
033a42c2 | 1632 | struct symbol *func = get_frame_function (frame); |
52f0bd74 | 1633 | struct block *b; |
de4f826b | 1634 | struct dict_iterator iter; |
52f0bd74 AC |
1635 | struct symbol *sym, *sym2; |
1636 | int values_printed = 0; | |
c906108c SS |
1637 | |
1638 | if (func == 0) | |
1639 | { | |
033a42c2 | 1640 | fprintf_filtered (stream, _("No symbol table info available.\n")); |
c906108c SS |
1641 | return; |
1642 | } | |
1643 | ||
1644 | b = SYMBOL_BLOCK_VALUE (func); | |
de4f826b | 1645 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1646 | { |
2a2d4dc3 AS |
1647 | /* Don't worry about things which aren't arguments. */ |
1648 | if (SYMBOL_IS_ARGUMENT (sym)) | |
c906108c | 1649 | { |
c906108c | 1650 | values_printed = 1; |
c906108c SS |
1651 | |
1652 | /* We have to look up the symbol because arguments can have | |
1653 | two entries (one a parameter, one a local) and the one we | |
1654 | want is the local, which lookup_symbol will find for us. | |
1655 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1656 | small structure and gcc2 when the argument type is float | |
1657 | and it is passed as a double and converted to float by | |
1658 | the prologue (in the latter case the type of the LOC_ARG | |
1659 | symbol is double and the type of the LOC_LOCAL symbol is | |
1660 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
1661 | are not combined in symbol-reading. */ | |
1662 | ||
3567439c | 1663 | sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), |
2570f2b7 | 1664 | b, VAR_DOMAIN, NULL); |
aad95b57 TT |
1665 | print_variable_and_value (SYMBOL_PRINT_NAME (sym), sym2, |
1666 | frame, stream, 0); | |
c906108c SS |
1667 | } |
1668 | } | |
033a42c2 | 1669 | |
c906108c | 1670 | if (!values_printed) |
033a42c2 | 1671 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
1672 | } |
1673 | ||
1674 | void | |
fba45db2 | 1675 | args_info (char *ignore, int from_tty) |
c906108c | 1676 | { |
033a42c2 | 1677 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1678 | gdb_stdout); |
c906108c SS |
1679 | } |
1680 | ||
1681 | ||
1682 | static void | |
fba45db2 | 1683 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 1684 | { |
c5aa993b JM |
1685 | args_info (ignore, from_tty); |
1686 | locals_info (ignore, from_tty); | |
c906108c | 1687 | } |
c906108c | 1688 | \f |
c5aa993b | 1689 | |
033a42c2 MK |
1690 | /* Select frame FRAME. Also print the stack frame and show the source |
1691 | if this is the tui version. */ | |
bedfa57b | 1692 | static void |
033a42c2 | 1693 | select_and_print_frame (struct frame_info *frame) |
c906108c | 1694 | { |
033a42c2 MK |
1695 | select_frame (frame); |
1696 | if (frame) | |
1697 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 1698 | } |
c906108c | 1699 | \f |
c906108c | 1700 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
1701 | Can return zero under various legitimate circumstances. |
1702 | ||
1703 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
1704 | code address within the block returned. We use this to decide | |
1705 | which macros are in scope. */ | |
c906108c SS |
1706 | |
1707 | struct block * | |
ae767bfb | 1708 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c | 1709 | { |
d729566a | 1710 | if (!has_stack_frames ()) |
8ea051c5 PA |
1711 | return 0; |
1712 | ||
206415a3 | 1713 | return get_frame_block (get_selected_frame (NULL), addr_in_block); |
c906108c SS |
1714 | } |
1715 | ||
1716 | /* Find a frame a certain number of levels away from FRAME. | |
1717 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
1718 | Positive means go to earlier frames (up); negative, the reverse. | |
1719 | The int that contains the number of levels is counted toward | |
1720 | zero as the frames for those levels are found. | |
1721 | If the top or bottom frame is reached, that frame is returned, | |
1722 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
1723 | how much farther the original request asked to go. */ | |
1724 | ||
1725 | struct frame_info * | |
033a42c2 | 1726 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 1727 | { |
033a42c2 MK |
1728 | /* Going up is simple: just call get_prev_frame enough times or |
1729 | until the initial frame is reached. */ | |
c906108c SS |
1730 | while (*level_offset_ptr > 0) |
1731 | { | |
033a42c2 MK |
1732 | struct frame_info *prev = get_prev_frame (frame); |
1733 | if (!prev) | |
c906108c SS |
1734 | break; |
1735 | (*level_offset_ptr)--; | |
1736 | frame = prev; | |
1737 | } | |
033a42c2 | 1738 | |
c906108c | 1739 | /* Going down is just as simple. */ |
033a42c2 | 1740 | while (*level_offset_ptr < 0) |
c906108c | 1741 | { |
033a42c2 MK |
1742 | struct frame_info *next = get_next_frame (frame); |
1743 | if (!next) | |
1744 | break; | |
1745 | (*level_offset_ptr)++; | |
1746 | frame = next; | |
c906108c | 1747 | } |
033a42c2 | 1748 | |
c906108c SS |
1749 | return frame; |
1750 | } | |
1751 | ||
033a42c2 MK |
1752 | /* The "select_frame" command. With no argument this is a NOP. |
1753 | Select the frame at level LEVEL_EXP if it is a valid level. | |
1754 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
1755 | ||
1756 | See parse_frame_specification for more info on proper frame | |
1757 | expressions. */ | |
c906108c | 1758 | |
8b93c638 | 1759 | void |
fba45db2 | 1760 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 1761 | { |
1c8831c5 | 1762 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
1763 | } |
1764 | ||
033a42c2 MK |
1765 | /* The "frame" command. With no argument, print the selected frame |
1766 | briefly. With an argument, behave like select_frame and then print | |
1767 | the selected frame. */ | |
c906108c | 1768 | |
033a42c2 | 1769 | static void |
fba45db2 | 1770 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
1771 | { |
1772 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 1773 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1774 | } |
1775 | ||
033a42c2 | 1776 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 1777 | |
7a292a7a | 1778 | static void |
fba45db2 | 1779 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 1780 | { |
033a42c2 | 1781 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 1782 | } |
c906108c | 1783 | |
033a42c2 MK |
1784 | /* Select the frame up one or COUNT_EXP stack levels from the |
1785 | previously selected frame, and print it briefly. */ | |
c906108c | 1786 | |
c906108c | 1787 | static void |
fba45db2 | 1788 | up_silently_base (char *count_exp) |
c906108c | 1789 | { |
033a42c2 MK |
1790 | struct frame_info *frame; |
1791 | int count = 1; | |
1792 | ||
c906108c | 1793 | if (count_exp) |
bb518678 | 1794 | count = parse_and_eval_long (count_exp); |
c5aa993b | 1795 | |
033a42c2 MK |
1796 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1797 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 1798 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 1799 | select_frame (frame); |
c906108c SS |
1800 | } |
1801 | ||
1802 | static void | |
fba45db2 | 1803 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 1804 | { |
c5aa993b | 1805 | up_silently_base (count_exp); |
c906108c SS |
1806 | } |
1807 | ||
1808 | static void | |
fba45db2 | 1809 | up_command (char *count_exp, int from_tty) |
c906108c SS |
1810 | { |
1811 | up_silently_base (count_exp); | |
b04f3ab4 | 1812 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1813 | } |
1814 | ||
033a42c2 MK |
1815 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
1816 | selected frame, and print it briefly. */ | |
c906108c | 1817 | |
c906108c | 1818 | static void |
fba45db2 | 1819 | down_silently_base (char *count_exp) |
c906108c | 1820 | { |
52f0bd74 | 1821 | struct frame_info *frame; |
033a42c2 | 1822 | int count = -1; |
c906108c | 1823 | if (count_exp) |
bb518678 | 1824 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 1825 | |
033a42c2 MK |
1826 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1827 | if (count != 0 && count_exp == NULL) | |
c906108c | 1828 | { |
033a42c2 MK |
1829 | /* We only do this if COUNT_EXP is not specified. That way |
1830 | "down" means to really go down (and let me know if that is | |
1831 | impossible), but "down 9999" can be used to mean go all the | |
1832 | way down without getting an error. */ | |
c906108c | 1833 | |
033a42c2 | 1834 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
1835 | } |
1836 | ||
0f7d239c | 1837 | select_frame (frame); |
c906108c SS |
1838 | } |
1839 | ||
c906108c | 1840 | static void |
fba45db2 | 1841 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
1842 | { |
1843 | down_silently_base (count_exp); | |
c906108c SS |
1844 | } |
1845 | ||
1846 | static void | |
fba45db2 | 1847 | down_command (char *count_exp, int from_tty) |
c906108c SS |
1848 | { |
1849 | down_silently_base (count_exp); | |
b04f3ab4 | 1850 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1851 | } |
1852 | \f | |
033a42c2 | 1853 | |
8b93c638 | 1854 | void |
fba45db2 | 1855 | return_command (char *retval_exp, int from_tty) |
c906108c | 1856 | { |
5ed92fa8 | 1857 | struct frame_info *thisframe; |
c906108c | 1858 | struct symbol *thisfun; |
3d6d86c6 | 1859 | struct value *return_value = NULL; |
fc70c2a0 | 1860 | const char *query_prefix = ""; |
c906108c | 1861 | |
5ed92fa8 UW |
1862 | thisframe = get_selected_frame ("No selected frame."); |
1863 | thisfun = get_frame_function (thisframe); | |
c906108c | 1864 | |
fc70c2a0 AC |
1865 | /* Compute the return value. If the computation triggers an error, |
1866 | let it bail. If the return type can't be handled, set | |
1867 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
1868 | message. */ | |
c906108c SS |
1869 | if (retval_exp) |
1870 | { | |
61ff14c6 JK |
1871 | struct expression *retval_expr = parse_expression (retval_exp); |
1872 | struct cleanup *old_chain = make_cleanup (xfree, retval_expr); | |
c906108c SS |
1873 | struct type *return_type = NULL; |
1874 | ||
fc70c2a0 AC |
1875 | /* Compute the return value. Should the computation fail, this |
1876 | call throws an error. */ | |
61ff14c6 | 1877 | return_value = evaluate_expression (retval_expr); |
c906108c | 1878 | |
fc70c2a0 AC |
1879 | /* Cast return value to the return type of the function. Should |
1880 | the cast fail, this call throws an error. */ | |
c906108c SS |
1881 | if (thisfun != NULL) |
1882 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
1883 | if (return_type == NULL) | |
61ff14c6 JK |
1884 | { |
1885 | if (retval_expr->elts[0].opcode != UNOP_CAST) | |
1886 | error (_("Return value type not available for selected " | |
1887 | "stack frame.\n" | |
1888 | "Please use an explicit cast of the value to return.")); | |
1889 | return_type = value_type (return_value); | |
1890 | } | |
1891 | do_cleanups (old_chain); | |
3e9a183c | 1892 | CHECK_TYPEDEF (return_type); |
c906108c SS |
1893 | return_value = value_cast (return_type, return_value); |
1894 | ||
fc70c2a0 AC |
1895 | /* Make sure the value is fully evaluated. It may live in the |
1896 | stack frame we're about to pop. */ | |
d69fe07e | 1897 | if (value_lazy (return_value)) |
c906108c | 1898 | value_fetch_lazy (return_value); |
c906108c | 1899 | |
667e784f AC |
1900 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
1901 | /* If the return-type is "void", don't try to find the | |
1902 | return-value's location. However, do still evaluate the | |
1903 | return expression so that, even when the expression result | |
1904 | is discarded, side effects such as "return i++" still | |
033a42c2 | 1905 | occur. */ |
667e784f | 1906 | return_value = NULL; |
42e2132c JK |
1907 | else if (thisfun != NULL |
1908 | && using_struct_return (SYMBOL_TYPE (thisfun), return_type)) | |
fc70c2a0 | 1909 | { |
667e784f AC |
1910 | query_prefix = "\ |
1911 | The location at which to store the function's return value is unknown.\n\ | |
1912 | If you continue, the return value that you specified will be ignored.\n"; | |
1913 | return_value = NULL; | |
fc70c2a0 | 1914 | } |
c906108c SS |
1915 | } |
1916 | ||
fc70c2a0 AC |
1917 | /* Does an interactive user really want to do this? Include |
1918 | information, such as how well GDB can handle the return value, in | |
1919 | the query message. */ | |
1920 | if (from_tty) | |
1921 | { | |
1922 | int confirmed; | |
1923 | if (thisfun == NULL) | |
e2e0b3e5 | 1924 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
1925 | query_prefix); |
1926 | else | |
e2e0b3e5 | 1927 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
1928 | SYMBOL_PRINT_NAME (thisfun)); |
1929 | if (!confirmed) | |
8a3fe4f8 | 1930 | error (_("Not confirmed")); |
fc70c2a0 | 1931 | } |
c906108c | 1932 | |
a45ae3ed UW |
1933 | /* Discard the selected frame and all frames inner-to it. */ |
1934 | frame_pop (get_selected_frame (NULL)); | |
c906108c | 1935 | |
a1f5b845 | 1936 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
1937 | if (return_value != NULL) |
1938 | { | |
df407dfe | 1939 | struct type *return_type = value_type (return_value); |
7500260a | 1940 | struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ()); |
42e2132c JK |
1941 | struct type *func_type = thisfun == NULL ? NULL : SYMBOL_TYPE (thisfun); |
1942 | ||
1943 | gdb_assert (gdbarch_return_value (gdbarch, func_type, return_type, NULL, | |
1944 | NULL, NULL) | |
750eb019 | 1945 | == RETURN_VALUE_REGISTER_CONVENTION); |
42e2132c | 1946 | gdbarch_return_value (gdbarch, func_type, return_type, |
594f7785 | 1947 | get_current_regcache (), NULL /*read*/, |
0fd88904 | 1948 | value_contents (return_value) /*write*/); |
fc70c2a0 | 1949 | } |
1a2aab69 | 1950 | |
fc70c2a0 AC |
1951 | /* If we are at the end of a call dummy now, pop the dummy frame |
1952 | too. */ | |
e8bcf01f AC |
1953 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
1954 | frame_pop (get_current_frame ()); | |
1a2aab69 | 1955 | |
c906108c | 1956 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
1957 | if (from_tty) |
1958 | frame_command ("0", 1); | |
1959 | else | |
1960 | select_frame_command ("0", 0); | |
1961 | } | |
1962 | ||
033a42c2 MK |
1963 | /* Sets the scope to input function name, provided that the function |
1964 | is within the current stack frame */ | |
c906108c SS |
1965 | |
1966 | struct function_bounds | |
1967 | { | |
1968 | CORE_ADDR low, high; | |
1969 | }; | |
1970 | ||
1971 | static void | |
fba45db2 | 1972 | func_command (char *arg, int from_tty) |
c906108c | 1973 | { |
033a42c2 | 1974 | struct frame_info *frame; |
c906108c SS |
1975 | int found = 0; |
1976 | struct symtabs_and_lines sals; | |
1977 | int i; | |
1978 | int level = 1; | |
033a42c2 | 1979 | struct function_bounds *func_bounds = NULL; |
c906108c | 1980 | |
033a42c2 | 1981 | if (arg != NULL) |
c906108c SS |
1982 | return; |
1983 | ||
033a42c2 | 1984 | frame = parse_frame_specification ("0"); |
c906108c SS |
1985 | sals = decode_line_spec (arg, 1); |
1986 | func_bounds = (struct function_bounds *) xmalloc ( | |
1987 | sizeof (struct function_bounds) * sals.nelts); | |
1988 | for (i = 0; (i < sals.nelts && !found); i++) | |
1989 | { | |
033a42c2 MK |
1990 | if (sals.sals[i].pc == 0 |
1991 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
1992 | &func_bounds[i].low, | |
1993 | &func_bounds[i].high) == 0) | |
c906108c | 1994 | { |
033a42c2 | 1995 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
1996 | } |
1997 | } | |
1998 | ||
1999 | do | |
2000 | { | |
2001 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
2002 | found = (get_frame_pc (frame) >= func_bounds[i].low |
2003 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
2004 | if (!found) |
2005 | { | |
2006 | level = 1; | |
033a42c2 | 2007 | frame = find_relative_frame (frame, &level); |
c906108c SS |
2008 | } |
2009 | } | |
2010 | while (!found && level == 0); | |
2011 | ||
2012 | if (func_bounds) | |
b8c9b27d | 2013 | xfree (func_bounds); |
c906108c SS |
2014 | |
2015 | if (!found) | |
a3f17187 | 2016 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
206415a3 | 2017 | else if (frame != get_selected_frame (NULL)) |
033a42c2 | 2018 | select_and_print_frame (frame); |
c906108c SS |
2019 | } |
2020 | ||
2021 | /* Gets the language of the current frame. */ | |
2022 | ||
2023 | enum language | |
fba45db2 | 2024 | get_frame_language (void) |
c906108c | 2025 | { |
206415a3 | 2026 | struct frame_info *frame = deprecated_safe_get_selected_frame (); |
c5aa993b | 2027 | |
033a42c2 | 2028 | if (frame) |
c906108c | 2029 | { |
7ae4c3a5 | 2030 | /* We determine the current frame language by looking up its |
033a42c2 MK |
2031 | associated symtab. To retrieve this symtab, we use the frame |
2032 | PC. However we cannot use the frame PC as is, because it | |
2033 | usually points to the instruction following the "call", which | |
2034 | is sometimes the first instruction of another function. So | |
2035 | we rely on get_frame_address_in_block(), it provides us with | |
2036 | a PC that is guaranteed to be inside the frame's code | |
2037 | block. */ | |
2038 | CORE_ADDR pc = get_frame_address_in_block (frame); | |
2039 | struct symtab *s = find_pc_symtab (pc); | |
2040 | ||
c906108c | 2041 | if (s) |
033a42c2 | 2042 | return s->language; |
c906108c | 2043 | } |
c906108c | 2044 | |
033a42c2 | 2045 | return language_unknown; |
c906108c SS |
2046 | } |
2047 | \f | |
033a42c2 MK |
2048 | |
2049 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
2050 | void _initialize_stack (void); | |
2051 | ||
c906108c | 2052 | void |
fba45db2 | 2053 | _initialize_stack (void) |
c906108c | 2054 | { |
c5aa993b | 2055 | #if 0 |
c906108c SS |
2056 | backtrace_limit = 30; |
2057 | #endif | |
2058 | ||
1bedd215 AC |
2059 | add_com ("return", class_stack, return_command, _("\ |
2060 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
2061 | Control remains in the debugger, but when you continue\n\ |
2062 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
2063 | If an argument is given, it is an expression for the value to return.")); |
2064 | ||
2065 | add_com ("up", class_stack, up_command, _("\ | |
2066 | Select and print stack frame that called this one.\n\ | |
2067 | An argument says how many frames up to go.")); | |
2068 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
2069 | Same as the `up' command, but does not print anything.\n\ | |
2070 | This is useful in command scripts.")); | |
2071 | ||
2072 | add_com ("down", class_stack, down_command, _("\ | |
2073 | Select and print stack frame called by this one.\n\ | |
2074 | An argument says how many frames down to go.")); | |
c906108c SS |
2075 | add_com_alias ("do", "down", class_stack, 1); |
2076 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
2077 | add_com ("down-silently", class_support, down_silently_command, _("\ |
2078 | Same as the `down' command, but does not print anything.\n\ | |
2079 | This is useful in command scripts.")); | |
c906108c | 2080 | |
1bedd215 AC |
2081 | add_com ("frame", class_stack, frame_command, _("\ |
2082 | Select and print a stack frame.\n\ | |
c906108c SS |
2083 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ |
2084 | An argument specifies the frame to select.\n\ | |
2085 | It can be a stack frame number or the address of the frame.\n\ | |
2086 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 2087 | a command file or a user-defined command.")); |
c906108c SS |
2088 | |
2089 | add_com_alias ("f", "frame", class_stack, 1); | |
2090 | ||
2091 | if (xdb_commands) | |
2092 | { | |
c5aa993b | 2093 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 2094 | _("Print the current stack frame.\n")); |
c906108c SS |
2095 | add_com_alias ("V", "frame", class_stack, 1); |
2096 | } | |
1bedd215 AC |
2097 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
2098 | Select a stack frame without printing anything.\n\ | |
c906108c | 2099 | An argument specifies the frame to select.\n\ |
1bedd215 | 2100 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 2101 | |
1bedd215 AC |
2102 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2103 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
c906108c | 2104 | With a negative argument, print outermost -COUNT frames.\n\ |
1bedd215 | 2105 | Use of the 'full' qualifier also prints the values of the local variables.\n")); |
c906108c SS |
2106 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2107 | if (xdb_commands) | |
2108 | { | |
2109 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 AC |
2110 | add_com ("T", class_stack, backtrace_full_command, _("\ |
2111 | Print backtrace of all stack frames, or innermost COUNT frames \n\ | |
c906108c SS |
2112 | and the values of the local variables.\n\ |
2113 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2114 | Usage: T <count>\n")); |
c906108c SS |
2115 | } |
2116 | ||
2117 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2118 | add_info ("stack", backtrace_command, | |
1bedd215 | 2119 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2120 | add_info_alias ("s", "stack", 1); |
2121 | add_info ("frame", frame_info, | |
1bedd215 | 2122 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2123 | add_info_alias ("f", "frame", 1); |
2124 | add_info ("locals", locals_info, | |
1bedd215 | 2125 | _("Local variables of current stack frame.")); |
c906108c | 2126 | add_info ("args", args_info, |
1bedd215 | 2127 | _("Argument variables of current stack frame.")); |
c906108c | 2128 | if (xdb_commands) |
c5aa993b | 2129 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2130 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2131 | |
2132 | if (dbx_commands) | |
1bedd215 AC |
2133 | add_com ("func", class_stack, func_command, _("\ |
2134 | Select the stack frame that contains <func>.\n\ | |
2135 | Usage: func <name>\n")); | |
c906108c SS |
2136 | |
2137 | add_info ("catch", catch_info, | |
1bedd215 | 2138 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c | 2139 | |
88408340 JB |
2140 | add_setshow_enum_cmd ("frame-arguments", class_stack, |
2141 | print_frame_arguments_choices, &print_frame_arguments, | |
2142 | _("Set printing of non-scalar frame arguments"), | |
2143 | _("Show printing of non-scalar frame arguments"), | |
2144 | NULL, NULL, NULL, &setprintlist, &showprintlist); | |
2145 | ||
30c33a9f HZ |
2146 | add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack, |
2147 | &disassemble_next_line, _("\ | |
2148 | Set whether to disassemble next source line when execution stops."), _("\ | |
2149 | Show whether to disassemble next source line when execution stops."), _("\ | |
2150 | If ON, GDB will display disassembly of the next source line when\n\ | |
2151 | execution of the program being debugged stops.\n\ | |
481df73e HZ |
2152 | If AUTO (which is the default), or there's no line info to determine\n\ |
2153 | the source line of the next instruction, display disassembly of next\n\ | |
2154 | instruction instead."), | |
30c33a9f HZ |
2155 | NULL, |
2156 | show_disassemble_next_line, | |
2157 | &setlist, &showlist); | |
2158 | disassemble_next_line = AUTO_BOOLEAN_AUTO; | |
2159 | ||
c906108c | 2160 | #if 0 |
1a966eab AC |
2161 | add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\ |
2162 | "Specify maximum number of frames for \"backtrace\" to print by default."), | |
c906108c | 2163 | &setlist); |
1bedd215 AC |
2164 | add_info ("backtrace-limit", backtrace_limit_info, _("\ |
2165 | The maximum number of frames for \"backtrace\" to print by default.")); | |
c906108c SS |
2166 | #endif |
2167 | } |