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55aa24fb SDJ |
1 | /* Generic static probe support for GDB. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2012-2014 Free Software Foundation, Inc. |
55aa24fb SDJ |
4 | |
5 | This file is part of GDB. | |
6 | ||
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 | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "probe.h" | |
22 | #include "command.h" | |
23 | #include "cli/cli-cmds.h" | |
24 | #include "cli/cli-utils.h" | |
25 | #include "objfiles.h" | |
26 | #include "symtab.h" | |
27 | #include "progspace.h" | |
28 | #include "filenames.h" | |
29 | #include "exceptions.h" | |
30 | #include "linespec.h" | |
31 | #include "gdb_regex.h" | |
32 | #include "frame.h" | |
33 | #include "arch-utils.h" | |
34 | #include <ctype.h> | |
35 | ||
729662a5 TT |
36 | typedef struct bound_probe bound_probe_s; |
37 | DEF_VEC_O (bound_probe_s); | |
38 | ||
55aa24fb SDJ |
39 | \f |
40 | ||
41 | /* See definition in probe.h. */ | |
42 | ||
43 | struct symtabs_and_lines | |
44 | parse_probes (char **argptr, struct linespec_result *canonical) | |
45 | { | |
46 | char *arg_start, *arg_end, *arg; | |
4721dc18 | 47 | char *objfile_namestr = NULL, *provider = NULL, *name, *p; |
55aa24fb SDJ |
48 | struct cleanup *cleanup; |
49 | struct symtabs_and_lines result; | |
50 | struct objfile *objfile; | |
51 | struct program_space *pspace; | |
52 | const struct probe_ops *probe_ops; | |
53 | const char *cs; | |
54 | ||
55 | result.sals = NULL; | |
56 | result.nelts = 0; | |
57 | ||
58 | arg_start = *argptr; | |
59 | ||
60 | cs = *argptr; | |
61 | probe_ops = probe_linespec_to_ops (&cs); | |
1bff71c3 SDJ |
62 | if (probe_ops == NULL) |
63 | error (_("'%s' is not a probe linespec"), arg_start); | |
55aa24fb SDJ |
64 | |
65 | arg = (char *) cs; | |
66 | arg = skip_spaces (arg); | |
67 | if (!*arg) | |
68 | error (_("argument to `%s' missing"), arg_start); | |
69 | ||
70 | arg_end = skip_to_space (arg); | |
71 | ||
72 | /* We make a copy here so we can write over parts with impunity. */ | |
73 | arg = savestring (arg, arg_end - arg); | |
74 | cleanup = make_cleanup (xfree, arg); | |
75 | ||
76 | /* Extract each word from the argument, separated by ":"s. */ | |
77 | p = strchr (arg, ':'); | |
78 | if (p == NULL) | |
79 | { | |
80 | /* This is `-p name'. */ | |
81 | name = arg; | |
82 | } | |
83 | else | |
84 | { | |
85 | char *hold = p + 1; | |
86 | ||
87 | *p = '\0'; | |
88 | p = strchr (hold, ':'); | |
89 | if (p == NULL) | |
90 | { | |
91 | /* This is `-p provider:name'. */ | |
92 | provider = arg; | |
93 | name = hold; | |
94 | } | |
95 | else | |
96 | { | |
97 | /* This is `-p objfile:provider:name'. */ | |
98 | *p = '\0'; | |
4721dc18 | 99 | objfile_namestr = arg; |
55aa24fb SDJ |
100 | provider = hold; |
101 | name = p + 1; | |
102 | } | |
103 | } | |
104 | ||
105 | if (*name == '\0') | |
106 | error (_("no probe name specified")); | |
107 | if (provider && *provider == '\0') | |
108 | error (_("invalid provider name")); | |
4721dc18 | 109 | if (objfile_namestr && *objfile_namestr == '\0') |
55aa24fb SDJ |
110 | error (_("invalid objfile name")); |
111 | ||
112 | ALL_PSPACES (pspace) | |
113 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
114 | { | |
115 | VEC (probe_p) *probes; | |
116 | struct probe *probe; | |
117 | int ix; | |
118 | ||
119 | if (!objfile->sf || !objfile->sf->sym_probe_fns) | |
120 | continue; | |
121 | ||
4721dc18 | 122 | if (objfile_namestr |
4262abfb JK |
123 | && FILENAME_CMP (objfile_name (objfile), objfile_namestr) != 0 |
124 | && FILENAME_CMP (lbasename (objfile_name (objfile)), | |
125 | objfile_namestr) != 0) | |
55aa24fb SDJ |
126 | continue; |
127 | ||
55aa24fb SDJ |
128 | probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile); |
129 | ||
130 | for (ix = 0; VEC_iterate (probe_p, probes, ix, probe); ix++) | |
131 | { | |
132 | struct symtab_and_line *sal; | |
133 | ||
134 | if (probe_ops != &probe_ops_any && probe->pops != probe_ops) | |
135 | continue; | |
136 | ||
137 | if (provider && strcmp (probe->provider, provider) != 0) | |
138 | continue; | |
139 | ||
140 | if (strcmp (probe->name, name) != 0) | |
141 | continue; | |
142 | ||
143 | ++result.nelts; | |
144 | result.sals = xrealloc (result.sals, | |
145 | result.nelts | |
146 | * sizeof (struct symtab_and_line)); | |
147 | sal = &result.sals[result.nelts - 1]; | |
148 | ||
149 | init_sal (sal); | |
150 | ||
729662a5 | 151 | sal->pc = get_probe_address (probe, objfile); |
55aa24fb SDJ |
152 | sal->explicit_pc = 1; |
153 | sal->section = find_pc_overlay (sal->pc); | |
154 | sal->pspace = pspace; | |
155 | sal->probe = probe; | |
729662a5 | 156 | sal->objfile = objfile; |
55aa24fb SDJ |
157 | } |
158 | } | |
159 | ||
160 | if (result.nelts == 0) | |
161 | { | |
162 | throw_error (NOT_FOUND_ERROR, | |
163 | _("No probe matching objfile=`%s', provider=`%s', name=`%s'"), | |
4721dc18 | 164 | objfile_namestr ? objfile_namestr : _("<any>"), |
55aa24fb SDJ |
165 | provider ? provider : _("<any>"), |
166 | name); | |
167 | } | |
168 | ||
169 | if (canonical) | |
170 | { | |
171 | canonical->special_display = 1; | |
172 | canonical->pre_expanded = 1; | |
173 | canonical->addr_string = savestring (*argptr, arg_end - *argptr); | |
174 | } | |
175 | ||
176 | *argptr = arg_end; | |
177 | do_cleanups (cleanup); | |
178 | ||
179 | return result; | |
180 | } | |
181 | ||
182 | /* See definition in probe.h. */ | |
183 | ||
184 | VEC (probe_p) * | |
185 | find_probes_in_objfile (struct objfile *objfile, const char *provider, | |
186 | const char *name) | |
187 | { | |
188 | VEC (probe_p) *probes, *result = NULL; | |
189 | int ix; | |
190 | struct probe *probe; | |
191 | ||
192 | if (!objfile->sf || !objfile->sf->sym_probe_fns) | |
193 | return NULL; | |
194 | ||
195 | probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile); | |
196 | for (ix = 0; VEC_iterate (probe_p, probes, ix, probe); ix++) | |
197 | { | |
198 | if (strcmp (probe->provider, provider) != 0) | |
199 | continue; | |
200 | ||
201 | if (strcmp (probe->name, name) != 0) | |
202 | continue; | |
203 | ||
204 | VEC_safe_push (probe_p, result, probe); | |
205 | } | |
206 | ||
207 | return result; | |
208 | } | |
209 | ||
210 | /* See definition in probe.h. */ | |
211 | ||
729662a5 | 212 | struct bound_probe |
6bac7473 | 213 | find_probe_by_pc (CORE_ADDR pc) |
55aa24fb SDJ |
214 | { |
215 | struct objfile *objfile; | |
729662a5 TT |
216 | struct bound_probe result; |
217 | ||
218 | result.objfile = NULL; | |
219 | result.probe = NULL; | |
55aa24fb SDJ |
220 | |
221 | ALL_OBJFILES (objfile) | |
222 | { | |
223 | VEC (probe_p) *probes; | |
224 | int ix; | |
225 | struct probe *probe; | |
226 | ||
729662a5 TT |
227 | if (!objfile->sf || !objfile->sf->sym_probe_fns |
228 | || objfile->sect_index_text == -1) | |
55aa24fb SDJ |
229 | continue; |
230 | ||
231 | /* If this proves too inefficient, we can replace with a hash. */ | |
232 | probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile); | |
233 | for (ix = 0; VEC_iterate (probe_p, probes, ix, probe); ix++) | |
729662a5 TT |
234 | if (get_probe_address (probe, objfile) == pc) |
235 | { | |
236 | result.objfile = objfile; | |
237 | result.probe = probe; | |
238 | return result; | |
239 | } | |
55aa24fb SDJ |
240 | } |
241 | ||
729662a5 | 242 | return result; |
55aa24fb SDJ |
243 | } |
244 | ||
245 | \f | |
246 | ||
55aa24fb SDJ |
247 | /* Make a vector of probes matching OBJNAME, PROVIDER, and PROBE_NAME. |
248 | If POPS is not NULL, only probes of this certain probe_ops will match. | |
249 | Each argument is a regexp, or NULL, which matches anything. */ | |
250 | ||
729662a5 | 251 | static VEC (bound_probe_s) * |
55aa24fb SDJ |
252 | collect_probes (char *objname, char *provider, char *probe_name, |
253 | const struct probe_ops *pops) | |
254 | { | |
255 | struct objfile *objfile; | |
729662a5 | 256 | VEC (bound_probe_s) *result = NULL; |
55aa24fb SDJ |
257 | struct cleanup *cleanup, *cleanup_temps; |
258 | regex_t obj_pat, prov_pat, probe_pat; | |
259 | ||
729662a5 | 260 | cleanup = make_cleanup (VEC_cleanup (bound_probe_s), &result); |
55aa24fb SDJ |
261 | |
262 | cleanup_temps = make_cleanup (null_cleanup, NULL); | |
db26349c TT |
263 | if (provider != NULL) |
264 | compile_rx_or_error (&prov_pat, provider, _("Invalid provider regexp")); | |
265 | if (probe_name != NULL) | |
266 | compile_rx_or_error (&probe_pat, probe_name, _("Invalid probe regexp")); | |
267 | if (objname != NULL) | |
268 | compile_rx_or_error (&obj_pat, objname, _("Invalid object file regexp")); | |
55aa24fb SDJ |
269 | |
270 | ALL_OBJFILES (objfile) | |
271 | { | |
272 | VEC (probe_p) *probes; | |
273 | struct probe *probe; | |
274 | int ix; | |
275 | ||
276 | if (! objfile->sf || ! objfile->sf->sym_probe_fns) | |
277 | continue; | |
278 | ||
279 | if (objname) | |
280 | { | |
4262abfb | 281 | if (regexec (&obj_pat, objfile_name (objfile), 0, NULL, 0) != 0) |
55aa24fb SDJ |
282 | continue; |
283 | } | |
284 | ||
285 | probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile); | |
286 | ||
287 | for (ix = 0; VEC_iterate (probe_p, probes, ix, probe); ix++) | |
288 | { | |
729662a5 TT |
289 | struct bound_probe bound; |
290 | ||
55aa24fb SDJ |
291 | if (pops != NULL && probe->pops != pops) |
292 | continue; | |
293 | ||
294 | if (provider | |
295 | && regexec (&prov_pat, probe->provider, 0, NULL, 0) != 0) | |
296 | continue; | |
297 | ||
298 | if (probe_name | |
299 | && regexec (&probe_pat, probe->name, 0, NULL, 0) != 0) | |
300 | continue; | |
301 | ||
729662a5 TT |
302 | bound.objfile = objfile; |
303 | bound.probe = probe; | |
304 | VEC_safe_push (bound_probe_s, result, &bound); | |
55aa24fb SDJ |
305 | } |
306 | } | |
307 | ||
308 | do_cleanups (cleanup_temps); | |
309 | discard_cleanups (cleanup); | |
310 | return result; | |
311 | } | |
312 | ||
729662a5 | 313 | /* A qsort comparison function for bound_probe_s objects. */ |
55aa24fb SDJ |
314 | |
315 | static int | |
6bac7473 | 316 | compare_probes (const void *a, const void *b) |
55aa24fb | 317 | { |
729662a5 TT |
318 | const struct bound_probe *pa = (const struct bound_probe *) a; |
319 | const struct bound_probe *pb = (const struct bound_probe *) b; | |
55aa24fb SDJ |
320 | int v; |
321 | ||
729662a5 | 322 | v = strcmp (pa->probe->provider, pb->probe->provider); |
55aa24fb SDJ |
323 | if (v) |
324 | return v; | |
325 | ||
729662a5 | 326 | v = strcmp (pa->probe->name, pb->probe->name); |
55aa24fb SDJ |
327 | if (v) |
328 | return v; | |
329 | ||
729662a5 | 330 | if (pa->probe->address < pb->probe->address) |
55aa24fb | 331 | return -1; |
729662a5 | 332 | if (pa->probe->address > pb->probe->address) |
55aa24fb SDJ |
333 | return 1; |
334 | ||
4262abfb | 335 | return strcmp (objfile_name (pa->objfile), objfile_name (pb->objfile)); |
55aa24fb SDJ |
336 | } |
337 | ||
338 | /* Helper function that generate entries in the ui_out table being | |
339 | crafted by `info_probes_for_ops'. */ | |
340 | ||
341 | static void | |
729662a5 | 342 | gen_ui_out_table_header_info (VEC (bound_probe_s) *probes, |
55aa24fb SDJ |
343 | const struct probe_ops *p) |
344 | { | |
345 | /* `headings' refers to the names of the columns when printing `info | |
346 | probes'. */ | |
347 | VEC (info_probe_column_s) *headings = NULL; | |
348 | struct cleanup *c; | |
349 | info_probe_column_s *column; | |
350 | size_t headings_size; | |
351 | int ix; | |
352 | ||
353 | gdb_assert (p != NULL); | |
354 | ||
355 | if (p->gen_info_probes_table_header == NULL | |
356 | && p->gen_info_probes_table_values == NULL) | |
357 | return; | |
358 | ||
359 | gdb_assert (p->gen_info_probes_table_header != NULL | |
360 | && p->gen_info_probes_table_values != NULL); | |
361 | ||
362 | c = make_cleanup (VEC_cleanup (info_probe_column_s), &headings); | |
363 | p->gen_info_probes_table_header (&headings); | |
364 | ||
365 | headings_size = VEC_length (info_probe_column_s, headings); | |
366 | ||
367 | for (ix = 0; | |
368 | VEC_iterate (info_probe_column_s, headings, ix, column); | |
369 | ++ix) | |
370 | { | |
729662a5 | 371 | struct bound_probe *probe; |
55aa24fb SDJ |
372 | int jx; |
373 | size_t size_max = strlen (column->print_name); | |
374 | ||
729662a5 | 375 | for (jx = 0; VEC_iterate (bound_probe_s, probes, jx, probe); ++jx) |
55aa24fb SDJ |
376 | { |
377 | /* `probe_fields' refers to the values of each new field that this | |
378 | probe will display. */ | |
379 | VEC (const_char_ptr) *probe_fields = NULL; | |
380 | struct cleanup *c2; | |
381 | const char *val; | |
382 | int kx; | |
383 | ||
729662a5 | 384 | if (probe->probe->pops != p) |
55aa24fb SDJ |
385 | continue; |
386 | ||
387 | c2 = make_cleanup (VEC_cleanup (const_char_ptr), &probe_fields); | |
729662a5 | 388 | p->gen_info_probes_table_values (probe->probe, &probe_fields); |
55aa24fb SDJ |
389 | |
390 | gdb_assert (VEC_length (const_char_ptr, probe_fields) | |
391 | == headings_size); | |
392 | ||
393 | for (kx = 0; VEC_iterate (const_char_ptr, probe_fields, kx, val); | |
394 | ++kx) | |
395 | { | |
396 | /* It is valid to have a NULL value here, which means that the | |
397 | backend does not have something to write and this particular | |
398 | field should be skipped. */ | |
399 | if (val == NULL) | |
400 | continue; | |
401 | ||
402 | size_max = max (strlen (val), size_max); | |
403 | } | |
404 | do_cleanups (c2); | |
405 | } | |
406 | ||
407 | ui_out_table_header (current_uiout, size_max, ui_left, | |
408 | column->field_name, column->print_name); | |
409 | } | |
410 | ||
411 | do_cleanups (c); | |
412 | } | |
413 | ||
414 | /* Helper function to print extra information about a probe and an objfile | |
6bac7473 | 415 | represented by PROBE. */ |
55aa24fb SDJ |
416 | |
417 | static void | |
6bac7473 | 418 | print_ui_out_info (struct probe *probe) |
55aa24fb SDJ |
419 | { |
420 | int ix; | |
421 | int j = 0; | |
422 | /* `values' refers to the actual values of each new field in the output | |
423 | of `info probe'. `headings' refers to the names of each new field. */ | |
424 | VEC (const_char_ptr) *values = NULL; | |
425 | VEC (info_probe_column_s) *headings = NULL; | |
426 | info_probe_column_s *column; | |
427 | struct cleanup *c; | |
428 | ||
6bac7473 SDJ |
429 | gdb_assert (probe != NULL); |
430 | gdb_assert (probe->pops != NULL); | |
55aa24fb | 431 | |
6bac7473 SDJ |
432 | if (probe->pops->gen_info_probes_table_header == NULL |
433 | && probe->pops->gen_info_probes_table_values == NULL) | |
55aa24fb SDJ |
434 | return; |
435 | ||
6bac7473 SDJ |
436 | gdb_assert (probe->pops->gen_info_probes_table_header != NULL |
437 | && probe->pops->gen_info_probes_table_values != NULL); | |
55aa24fb SDJ |
438 | |
439 | c = make_cleanup (VEC_cleanup (info_probe_column_s), &headings); | |
440 | make_cleanup (VEC_cleanup (const_char_ptr), &values); | |
441 | ||
6bac7473 SDJ |
442 | probe->pops->gen_info_probes_table_header (&headings); |
443 | probe->pops->gen_info_probes_table_values (probe, &values); | |
55aa24fb SDJ |
444 | |
445 | gdb_assert (VEC_length (info_probe_column_s, headings) | |
446 | == VEC_length (const_char_ptr, values)); | |
447 | ||
448 | for (ix = 0; | |
449 | VEC_iterate (info_probe_column_s, headings, ix, column); | |
450 | ++ix) | |
451 | { | |
452 | const char *val = VEC_index (const_char_ptr, values, j++); | |
453 | ||
454 | if (val == NULL) | |
455 | ui_out_field_skip (current_uiout, column->field_name); | |
456 | else | |
457 | ui_out_field_string (current_uiout, column->field_name, val); | |
458 | } | |
459 | ||
460 | do_cleanups (c); | |
461 | } | |
462 | ||
463 | /* Helper function that returns the number of extra fields which POPS will | |
464 | need. */ | |
465 | ||
466 | static int | |
467 | get_number_extra_fields (const struct probe_ops *pops) | |
468 | { | |
469 | VEC (info_probe_column_s) *headings = NULL; | |
470 | struct cleanup *c; | |
471 | int n; | |
472 | ||
473 | if (pops->gen_info_probes_table_header == NULL) | |
474 | return 0; | |
475 | ||
476 | c = make_cleanup (VEC_cleanup (info_probe_column_s), &headings); | |
477 | pops->gen_info_probes_table_header (&headings); | |
478 | ||
479 | n = VEC_length (info_probe_column_s, headings); | |
480 | ||
481 | do_cleanups (c); | |
482 | ||
483 | return n; | |
484 | } | |
485 | ||
486 | /* See comment in probe.h. */ | |
487 | ||
488 | void | |
489 | info_probes_for_ops (char *arg, int from_tty, const struct probe_ops *pops) | |
490 | { | |
6bac7473 | 491 | char *provider, *probe_name = NULL, *objname = NULL; |
55aa24fb | 492 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
729662a5 | 493 | VEC (bound_probe_s) *probes; |
55aa24fb SDJ |
494 | int i, any_found; |
495 | int ui_out_extra_fields = 0; | |
496 | size_t size_addr; | |
497 | size_t size_name = strlen ("Name"); | |
498 | size_t size_objname = strlen ("Object"); | |
499 | size_t size_provider = strlen ("Provider"); | |
729662a5 | 500 | struct bound_probe *probe; |
55aa24fb SDJ |
501 | struct gdbarch *gdbarch = get_current_arch (); |
502 | ||
503 | /* Do we have a `provider:probe:objfile' style of linespec? */ | |
504 | provider = extract_arg (&arg); | |
505 | if (provider) | |
506 | { | |
507 | make_cleanup (xfree, provider); | |
508 | ||
6bac7473 SDJ |
509 | probe_name = extract_arg (&arg); |
510 | if (probe_name) | |
55aa24fb | 511 | { |
6bac7473 | 512 | make_cleanup (xfree, probe_name); |
55aa24fb SDJ |
513 | |
514 | objname = extract_arg (&arg); | |
515 | if (objname) | |
516 | make_cleanup (xfree, objname); | |
517 | } | |
518 | } | |
519 | ||
520 | if (pops == NULL) | |
521 | { | |
522 | const struct probe_ops *po; | |
523 | int ix; | |
524 | ||
525 | /* If the probe_ops is NULL, it means the user has requested a "simple" | |
526 | `info probes', i.e., she wants to print all information about all | |
527 | probes. For that, we have to identify how many extra fields we will | |
528 | need to add in the ui_out table. | |
529 | ||
530 | To do that, we iterate over all probe_ops, querying each one about | |
531 | its extra fields, and incrementing `ui_out_extra_fields' to reflect | |
532 | that number. */ | |
533 | ||
534 | for (ix = 0; VEC_iterate (probe_ops_cp, all_probe_ops, ix, po); ++ix) | |
535 | ui_out_extra_fields += get_number_extra_fields (po); | |
536 | } | |
537 | else | |
538 | ui_out_extra_fields = get_number_extra_fields (pops); | |
539 | ||
6bac7473 SDJ |
540 | probes = collect_probes (objname, provider, probe_name, pops); |
541 | make_cleanup (VEC_cleanup (probe_p), &probes); | |
55aa24fb SDJ |
542 | make_cleanup_ui_out_table_begin_end (current_uiout, |
543 | 4 + ui_out_extra_fields, | |
729662a5 | 544 | VEC_length (bound_probe_s, probes), |
55aa24fb SDJ |
545 | "StaticProbes"); |
546 | ||
729662a5 TT |
547 | if (!VEC_empty (bound_probe_s, probes)) |
548 | qsort (VEC_address (bound_probe_s, probes), | |
549 | VEC_length (bound_probe_s, probes), | |
550 | sizeof (bound_probe_s), compare_probes); | |
55aa24fb SDJ |
551 | |
552 | /* What's the size of an address in our architecture? */ | |
553 | size_addr = gdbarch_addr_bit (gdbarch) == 64 ? 18 : 10; | |
554 | ||
555 | /* Determining the maximum size of each field (`provider', `name' and | |
556 | `objname'). */ | |
729662a5 | 557 | for (i = 0; VEC_iterate (bound_probe_s, probes, i, probe); ++i) |
55aa24fb | 558 | { |
729662a5 TT |
559 | size_name = max (strlen (probe->probe->name), size_name); |
560 | size_provider = max (strlen (probe->probe->provider), size_provider); | |
4262abfb | 561 | size_objname = max (strlen (objfile_name (probe->objfile)), size_objname); |
55aa24fb SDJ |
562 | } |
563 | ||
564 | ui_out_table_header (current_uiout, size_provider, ui_left, "provider", | |
565 | _("Provider")); | |
566 | ui_out_table_header (current_uiout, size_name, ui_left, "name", _("Name")); | |
567 | ui_out_table_header (current_uiout, size_addr, ui_left, "addr", _("Where")); | |
568 | ||
569 | if (pops == NULL) | |
570 | { | |
571 | const struct probe_ops *po; | |
572 | int ix; | |
573 | ||
574 | /* We have to generate the table header for each new probe type that we | |
575 | will print. */ | |
576 | for (ix = 0; VEC_iterate (probe_ops_cp, all_probe_ops, ix, po); ++ix) | |
6bac7473 | 577 | gen_ui_out_table_header_info (probes, po); |
55aa24fb SDJ |
578 | } |
579 | else | |
6bac7473 | 580 | gen_ui_out_table_header_info (probes, pops); |
55aa24fb SDJ |
581 | |
582 | ui_out_table_header (current_uiout, size_objname, ui_left, "object", | |
583 | _("Object")); | |
584 | ui_out_table_body (current_uiout); | |
585 | ||
729662a5 | 586 | for (i = 0; VEC_iterate (bound_probe_s, probes, i, probe); ++i) |
55aa24fb SDJ |
587 | { |
588 | struct cleanup *inner; | |
589 | ||
590 | inner = make_cleanup_ui_out_tuple_begin_end (current_uiout, "probe"); | |
591 | ||
729662a5 TT |
592 | ui_out_field_string (current_uiout, "provider", probe->probe->provider); |
593 | ui_out_field_string (current_uiout, "name", probe->probe->name); | |
55aa24fb | 594 | ui_out_field_core_addr (current_uiout, "addr", |
729662a5 TT |
595 | probe->probe->arch, |
596 | get_probe_address (probe->probe, probe->objfile)); | |
55aa24fb SDJ |
597 | |
598 | if (pops == NULL) | |
599 | { | |
600 | const struct probe_ops *po; | |
601 | int ix; | |
602 | ||
603 | for (ix = 0; VEC_iterate (probe_ops_cp, all_probe_ops, ix, po); | |
604 | ++ix) | |
729662a5 TT |
605 | if (probe->probe->pops == po) |
606 | print_ui_out_info (probe->probe); | |
55aa24fb SDJ |
607 | } |
608 | else | |
729662a5 | 609 | print_ui_out_info (probe->probe); |
55aa24fb | 610 | |
4262abfb JK |
611 | ui_out_field_string (current_uiout, "object", |
612 | objfile_name (probe->objfile)); | |
55aa24fb SDJ |
613 | ui_out_text (current_uiout, "\n"); |
614 | ||
615 | do_cleanups (inner); | |
616 | } | |
617 | ||
729662a5 | 618 | any_found = !VEC_empty (bound_probe_s, probes); |
55aa24fb SDJ |
619 | do_cleanups (cleanup); |
620 | ||
621 | if (!any_found) | |
622 | ui_out_message (current_uiout, 0, _("No probes matched.\n")); | |
623 | } | |
624 | ||
625 | /* Implementation of the `info probes' command. */ | |
626 | ||
627 | static void | |
628 | info_probes_command (char *arg, int from_tty) | |
629 | { | |
630 | info_probes_for_ops (arg, from_tty, NULL); | |
631 | } | |
632 | ||
633 | /* See comments in probe.h. */ | |
634 | ||
729662a5 TT |
635 | CORE_ADDR |
636 | get_probe_address (struct probe *probe, struct objfile *objfile) | |
637 | { | |
638 | return probe->pops->get_probe_address (probe, objfile); | |
639 | } | |
640 | ||
641 | /* See comments in probe.h. */ | |
642 | ||
9ee6a5ac | 643 | unsigned |
08a6411c | 644 | get_probe_argument_count (struct probe *probe, struct frame_info *frame) |
9ee6a5ac | 645 | { |
08a6411c | 646 | return probe->pops->get_probe_argument_count (probe, frame); |
9ee6a5ac GB |
647 | } |
648 | ||
649 | /* See comments in probe.h. */ | |
650 | ||
25f9533e SDJ |
651 | int |
652 | can_evaluate_probe_arguments (struct probe *probe) | |
653 | { | |
37fbcad0 | 654 | return probe->pops->can_evaluate_probe_arguments (probe); |
25f9533e SDJ |
655 | } |
656 | ||
657 | /* See comments in probe.h. */ | |
658 | ||
9ee6a5ac | 659 | struct value * |
08a6411c SDJ |
660 | evaluate_probe_argument (struct probe *probe, unsigned n, |
661 | struct frame_info *frame) | |
9ee6a5ac | 662 | { |
08a6411c | 663 | return probe->pops->evaluate_probe_argument (probe, n, frame); |
9ee6a5ac GB |
664 | } |
665 | ||
666 | /* See comments in probe.h. */ | |
667 | ||
55aa24fb SDJ |
668 | struct value * |
669 | probe_safe_evaluate_at_pc (struct frame_info *frame, unsigned n) | |
670 | { | |
729662a5 | 671 | struct bound_probe probe; |
2b963b68 | 672 | unsigned n_args; |
55aa24fb | 673 | |
6bac7473 | 674 | probe = find_probe_by_pc (get_frame_pc (frame)); |
729662a5 | 675 | if (!probe.probe) |
55aa24fb | 676 | return NULL; |
55aa24fb | 677 | |
729662a5 | 678 | n_args = get_probe_argument_count (probe.probe, frame); |
2b963b68 | 679 | if (n >= n_args) |
55aa24fb SDJ |
680 | return NULL; |
681 | ||
729662a5 | 682 | return evaluate_probe_argument (probe.probe, n, frame); |
55aa24fb SDJ |
683 | } |
684 | ||
685 | /* See comment in probe.h. */ | |
686 | ||
687 | const struct probe_ops * | |
688 | probe_linespec_to_ops (const char **linespecp) | |
689 | { | |
690 | int ix; | |
691 | const struct probe_ops *probe_ops; | |
692 | ||
693 | for (ix = 0; VEC_iterate (probe_ops_cp, all_probe_ops, ix, probe_ops); ix++) | |
694 | if (probe_ops->is_linespec (linespecp)) | |
695 | return probe_ops; | |
696 | ||
697 | return NULL; | |
698 | } | |
699 | ||
700 | /* See comment in probe.h. */ | |
701 | ||
702 | int | |
703 | probe_is_linespec_by_keyword (const char **linespecp, const char *const *keywords) | |
704 | { | |
705 | const char *s = *linespecp; | |
706 | const char *const *csp; | |
707 | ||
708 | for (csp = keywords; *csp; csp++) | |
709 | { | |
710 | const char *keyword = *csp; | |
711 | size_t len = strlen (keyword); | |
712 | ||
713 | if (strncmp (s, keyword, len) == 0 && isspace (s[len])) | |
714 | { | |
715 | *linespecp += len + 1; | |
716 | return 1; | |
717 | } | |
718 | } | |
719 | ||
720 | return 0; | |
721 | } | |
722 | ||
723 | /* Implementation of `is_linespec' method for `struct probe_ops'. */ | |
724 | ||
725 | static int | |
726 | probe_any_is_linespec (const char **linespecp) | |
727 | { | |
728 | static const char *const keywords[] = { "-p", "-probe", NULL }; | |
729 | ||
730 | return probe_is_linespec_by_keyword (linespecp, keywords); | |
731 | } | |
732 | ||
733 | /* Dummy method used for `probe_ops_any'. */ | |
734 | ||
735 | static void | |
736 | probe_any_get_probes (VEC (probe_p) **probesp, struct objfile *objfile) | |
737 | { | |
738 | /* No probes can be provided by this dummy backend. */ | |
739 | } | |
740 | ||
741 | /* Operations associated with a generic probe. */ | |
742 | ||
743 | const struct probe_ops probe_ops_any = | |
744 | { | |
745 | probe_any_is_linespec, | |
746 | probe_any_get_probes, | |
747 | }; | |
748 | ||
749 | /* See comments in probe.h. */ | |
750 | ||
751 | struct cmd_list_element ** | |
752 | info_probes_cmdlist_get (void) | |
753 | { | |
754 | static struct cmd_list_element *info_probes_cmdlist; | |
755 | ||
756 | if (info_probes_cmdlist == NULL) | |
757 | add_prefix_cmd ("probes", class_info, info_probes_command, | |
758 | _("\ | |
759 | Show available static probes.\n\ | |
760 | Usage: info probes [all|TYPE [ARGS]]\n\ | |
761 | TYPE specifies the type of the probe, and can be one of the following:\n\ | |
762 | - stap\n\ | |
763 | If you specify TYPE, there may be additional arguments needed by the\n\ | |
764 | subcommand.\n\ | |
765 | If you do not specify any argument, or specify `all', then the command\n\ | |
766 | will show information about all types of probes."), | |
767 | &info_probes_cmdlist, "info probes ", | |
768 | 0/*allow-unknown*/, &infolist); | |
769 | ||
770 | return &info_probes_cmdlist; | |
771 | } | |
772 | ||
773 | VEC (probe_ops_cp) *all_probe_ops; | |
774 | ||
775 | void _initialize_probe (void); | |
776 | ||
777 | void | |
778 | _initialize_probe (void) | |
779 | { | |
780 | VEC_safe_push (probe_ops_cp, all_probe_ops, &probe_ops_any); | |
781 | ||
782 | add_cmd ("all", class_info, info_probes_command, | |
783 | _("\ | |
784 | Show information about all type of probes."), | |
785 | info_probes_cmdlist_get ()); | |
786 | } |