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ed3ef339 DE |
1 | /* Scheme interface to breakpoints. |
2 | ||
32d0add0 | 3 | Copyright (C) 2008-2015 Free Software Foundation, Inc. |
ed3ef339 DE |
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 | /* See README file in this directory for implementation notes, coding | |
21 | conventions, et.al. */ | |
22 | ||
23 | #include "defs.h" | |
24 | #include "value.h" | |
ed3ef339 DE |
25 | #include "breakpoint.h" |
26 | #include "gdbcmd.h" | |
27 | #include "gdbthread.h" | |
28 | #include "observer.h" | |
29 | #include "cli/cli-script.h" | |
30 | #include "ada-lang.h" | |
31 | #include "arch-utils.h" | |
32 | #include "language.h" | |
33 | #include "guile-internal.h" | |
34 | ||
35 | /* The <gdb:breakpoint> smob. | |
16f691fb DE |
36 | N.B.: The name of this struct is known to breakpoint.h. |
37 | ||
38 | Note: Breakpoints are added to gdb using a two step process: | |
39 | 1) Call make-breakpoint to create a <gdb:breakpoint> object. | |
40 | 2) Call register-breakpoint! to add the breakpoint to gdb. | |
41 | It is done this way so that the constructor, make-breakpoint, doesn't have | |
42 | any side-effects. This means that the smob needs to store everything | |
43 | that was passed to make-breakpoint. */ | |
ed3ef339 DE |
44 | |
45 | typedef struct gdbscm_breakpoint_object | |
46 | { | |
47 | /* This always appears first. */ | |
48 | gdb_smob base; | |
49 | ||
16f691fb DE |
50 | /* Non-zero if this breakpoint was created with make-breakpoint. */ |
51 | int is_scheme_bkpt; | |
52 | ||
53 | /* For breakpoints created with make-breakpoint, these are the parameters | |
54 | that were passed to make-breakpoint. These values are not used except | |
55 | to register the breakpoint with GDB. */ | |
56 | struct | |
57 | { | |
58 | /* The string representation of the breakpoint. | |
59 | Space for this lives in GC space. */ | |
60 | char *location; | |
61 | ||
62 | /* The kind of breakpoint. | |
63 | At the moment this can only be one of bp_breakpoint, bp_watchpoint. */ | |
64 | enum bptype type; | |
65 | ||
66 | /* If a watchpoint, the kind of watchpoint. */ | |
67 | enum target_hw_bp_type access_type; | |
68 | ||
69 | /* Non-zero if the breakpoint is an "internal" breakpoint. */ | |
70 | int is_internal; | |
71 | } spec; | |
72 | ||
ed3ef339 | 73 | /* The breakpoint number according to gdb. |
16f691fb DE |
74 | For breakpoints created from Scheme, this has the value -1 until the |
75 | breakpoint is registered with gdb. | |
ed3ef339 DE |
76 | This is recorded here because BP will be NULL when deleted. */ |
77 | int number; | |
78 | ||
16f691fb DE |
79 | /* The gdb breakpoint object, or NULL if the breakpoint has not been |
80 | registered yet, or has been deleted. */ | |
ed3ef339 DE |
81 | struct breakpoint *bp; |
82 | ||
83 | /* Backlink to our containing <gdb:breakpoint> smob. | |
84 | This is needed when we are deleted, we need to unprotect the object | |
85 | from GC. */ | |
86 | SCM containing_scm; | |
87 | ||
88 | /* A stop condition or #f. */ | |
89 | SCM stop; | |
90 | } breakpoint_smob; | |
91 | ||
92 | static const char breakpoint_smob_name[] = "gdb:breakpoint"; | |
93 | ||
94 | /* The tag Guile knows the breakpoint smob by. */ | |
95 | static scm_t_bits breakpoint_smob_tag; | |
96 | ||
97 | /* Variables used to pass information between the breakpoint_smob | |
98 | constructor and the breakpoint-created hook function. */ | |
99 | static SCM pending_breakpoint_scm = SCM_BOOL_F; | |
100 | ||
101 | /* Keywords used by create-breakpoint!. */ | |
102 | static SCM type_keyword; | |
103 | static SCM wp_class_keyword; | |
104 | static SCM internal_keyword; | |
105 | \f | |
106 | /* Administrivia for breakpoint smobs. */ | |
107 | ||
ed3ef339 DE |
108 | /* The smob "free" function for <gdb:breakpoint>. */ |
109 | ||
110 | static size_t | |
111 | bpscm_free_breakpoint_smob (SCM self) | |
112 | { | |
113 | breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (self); | |
114 | ||
115 | if (bp_smob->bp) | |
116 | bp_smob->bp->scm_bp_object = NULL; | |
117 | ||
118 | /* Not necessary, done to catch bugs. */ | |
119 | bp_smob->bp = NULL; | |
120 | bp_smob->containing_scm = SCM_UNDEFINED; | |
121 | bp_smob->stop = SCM_UNDEFINED; | |
122 | ||
123 | return 0; | |
124 | } | |
125 | ||
126 | /* Return the name of TYPE. | |
127 | This doesn't handle all types, just the ones we export. */ | |
128 | ||
129 | static const char * | |
130 | bpscm_type_to_string (enum bptype type) | |
131 | { | |
132 | switch (type) | |
133 | { | |
134 | case bp_none: return "BP_NONE"; | |
135 | case bp_breakpoint: return "BP_BREAKPOINT"; | |
136 | case bp_watchpoint: return "BP_WATCHPOINT"; | |
137 | case bp_hardware_watchpoint: return "BP_HARDWARE_WATCHPOINT"; | |
138 | case bp_read_watchpoint: return "BP_READ_WATCHPOINT"; | |
139 | case bp_access_watchpoint: return "BP_ACCESS_WATCHPOINT"; | |
140 | default: return "internal/other"; | |
141 | } | |
142 | } | |
143 | ||
144 | /* Return the name of ENABLE_STATE. */ | |
145 | ||
146 | static const char * | |
147 | bpscm_enable_state_to_string (enum enable_state enable_state) | |
148 | { | |
149 | switch (enable_state) | |
150 | { | |
151 | case bp_disabled: return "disabled"; | |
152 | case bp_enabled: return "enabled"; | |
153 | case bp_call_disabled: return "call_disabled"; | |
ed3ef339 DE |
154 | default: return "unknown"; |
155 | } | |
156 | } | |
157 | ||
158 | /* The smob "print" function for <gdb:breakpoint>. */ | |
159 | ||
160 | static int | |
161 | bpscm_print_breakpoint_smob (SCM self, SCM port, scm_print_state *pstate) | |
162 | { | |
163 | breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (self); | |
164 | struct breakpoint *b = bp_smob->bp; | |
165 | ||
166 | gdbscm_printf (port, "#<%s", breakpoint_smob_name); | |
167 | ||
168 | /* Only print what we export to the user. | |
169 | The rest are possibly internal implementation details. */ | |
170 | ||
171 | gdbscm_printf (port, " #%d", bp_smob->number); | |
172 | ||
173 | /* Careful, the breakpoint may be invalid. */ | |
174 | if (b != NULL) | |
175 | { | |
176 | gdbscm_printf (port, " %s %s %s", | |
177 | bpscm_type_to_string (b->type), | |
178 | bpscm_enable_state_to_string (b->enable_state), | |
179 | b->silent ? "silent" : "noisy"); | |
180 | ||
181 | gdbscm_printf (port, " hit:%d", b->hit_count); | |
182 | gdbscm_printf (port, " ignore:%d", b->ignore_count); | |
183 | ||
184 | if (b->addr_string != NULL) | |
185 | gdbscm_printf (port, " @%s", b->addr_string); | |
186 | } | |
187 | ||
188 | scm_puts (">", port); | |
189 | ||
190 | scm_remember_upto_here_1 (self); | |
191 | ||
192 | /* Non-zero means success. */ | |
193 | return 1; | |
194 | } | |
195 | ||
196 | /* Low level routine to create a <gdb:breakpoint> object. */ | |
197 | ||
198 | static SCM | |
199 | bpscm_make_breakpoint_smob (void) | |
200 | { | |
201 | breakpoint_smob *bp_smob = (breakpoint_smob *) | |
202 | scm_gc_malloc (sizeof (breakpoint_smob), breakpoint_smob_name); | |
203 | SCM bp_scm; | |
204 | ||
16f691fb | 205 | memset (bp_smob, 0, sizeof (*bp_smob)); |
ed3ef339 | 206 | bp_smob->number = -1; |
ed3ef339 DE |
207 | bp_smob->stop = SCM_BOOL_F; |
208 | bp_scm = scm_new_smob (breakpoint_smob_tag, (scm_t_bits) bp_smob); | |
209 | bp_smob->containing_scm = bp_scm; | |
210 | gdbscm_init_gsmob (&bp_smob->base); | |
211 | ||
212 | return bp_scm; | |
213 | } | |
214 | ||
215 | /* Return non-zero if we want a Scheme wrapper for breakpoint B. | |
216 | If FROM_SCHEME is non-zero,this is called for a breakpoint created | |
217 | by the user from Scheme. Otherwise it is zero. */ | |
218 | ||
219 | static int | |
220 | bpscm_want_scm_wrapper_p (struct breakpoint *bp, int from_scheme) | |
221 | { | |
222 | /* Don't create <gdb:breakpoint> objects for internal GDB breakpoints. */ | |
223 | if (bp->number < 0 && !from_scheme) | |
224 | return 0; | |
225 | ||
226 | /* The others are not supported. */ | |
227 | if (bp->type != bp_breakpoint | |
228 | && bp->type != bp_watchpoint | |
229 | && bp->type != bp_hardware_watchpoint | |
230 | && bp->type != bp_read_watchpoint | |
231 | && bp->type != bp_access_watchpoint) | |
232 | return 0; | |
233 | ||
234 | return 1; | |
235 | } | |
236 | ||
237 | /* Install the Scheme side of a breakpoint, CONTAINING_SCM, in | |
238 | the gdb side BP. */ | |
239 | ||
240 | static void | |
241 | bpscm_attach_scm_to_breakpoint (struct breakpoint *bp, SCM containing_scm) | |
242 | { | |
243 | breakpoint_smob *bp_smob; | |
244 | ||
245 | bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (containing_scm); | |
246 | bp_smob->number = bp->number; | |
247 | bp_smob->bp = bp; | |
248 | bp_smob->containing_scm = containing_scm; | |
249 | bp_smob->bp->scm_bp_object = bp_smob; | |
250 | ||
251 | /* The owner of this breakpoint is not in GC-controlled memory, so we need | |
252 | to protect it from GC until the breakpoint is deleted. */ | |
253 | scm_gc_protect_object (containing_scm); | |
254 | } | |
255 | ||
256 | /* Return non-zero if SCM is a breakpoint smob. */ | |
257 | ||
258 | static int | |
259 | bpscm_is_breakpoint (SCM scm) | |
260 | { | |
261 | return SCM_SMOB_PREDICATE (breakpoint_smob_tag, scm); | |
262 | } | |
263 | ||
264 | /* (breakpoint? scm) -> boolean */ | |
265 | ||
266 | static SCM | |
267 | gdbscm_breakpoint_p (SCM scm) | |
268 | { | |
269 | return scm_from_bool (bpscm_is_breakpoint (scm)); | |
270 | } | |
271 | ||
272 | /* Returns the <gdb:breakpoint> object in SELF. | |
273 | Throws an exception if SELF is not a <gdb:breakpoint> object. */ | |
274 | ||
275 | static SCM | |
276 | bpscm_get_breakpoint_arg_unsafe (SCM self, int arg_pos, const char *func_name) | |
277 | { | |
278 | SCM_ASSERT_TYPE (bpscm_is_breakpoint (self), self, arg_pos, func_name, | |
279 | breakpoint_smob_name); | |
280 | ||
281 | return self; | |
282 | } | |
283 | ||
284 | /* Returns a pointer to the breakpoint smob of SELF. | |
285 | Throws an exception if SELF is not a <gdb:breakpoint> object. */ | |
286 | ||
287 | static breakpoint_smob * | |
288 | bpscm_get_breakpoint_smob_arg_unsafe (SCM self, int arg_pos, | |
289 | const char *func_name) | |
290 | { | |
291 | SCM bp_scm = bpscm_get_breakpoint_arg_unsafe (self, arg_pos, func_name); | |
292 | breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (bp_scm); | |
293 | ||
294 | return bp_smob; | |
295 | } | |
296 | ||
297 | /* Return non-zero if breakpoint BP_SMOB is valid. */ | |
298 | ||
299 | static int | |
300 | bpscm_is_valid (breakpoint_smob *bp_smob) | |
301 | { | |
302 | return bp_smob->bp != NULL; | |
303 | } | |
304 | ||
305 | /* Returns the breakpoint smob in SELF, verifying it's valid. | |
306 | Throws an exception if SELF is not a <gdb:breakpoint> object, | |
307 | or is invalid. */ | |
308 | ||
309 | static breakpoint_smob * | |
310 | bpscm_get_valid_breakpoint_smob_arg_unsafe (SCM self, int arg_pos, | |
311 | const char *func_name) | |
312 | { | |
313 | breakpoint_smob *bp_smob | |
314 | = bpscm_get_breakpoint_smob_arg_unsafe (self, arg_pos, func_name); | |
315 | ||
316 | if (!bpscm_is_valid (bp_smob)) | |
317 | { | |
318 | gdbscm_invalid_object_error (func_name, arg_pos, self, | |
319 | _("<gdb:breakpoint>")); | |
320 | } | |
321 | ||
322 | return bp_smob; | |
323 | } | |
324 | \f | |
325 | /* Breakpoint methods. */ | |
326 | ||
16f691fb DE |
327 | /* (make-breakpoint string [#:type integer] [#:wp-class integer] |
328 | [#:internal boolean) -> <gdb:breakpoint> | |
329 | ||
330 | The result is the <gdb:breakpoint> Scheme object. | |
331 | The breakpoint is not available to be used yet, however. | |
332 | It must still be added to gdb with register-breakpoint!. */ | |
ed3ef339 DE |
333 | |
334 | static SCM | |
16f691fb | 335 | gdbscm_make_breakpoint (SCM location_scm, SCM rest) |
ed3ef339 DE |
336 | { |
337 | const SCM keywords[] = { | |
338 | type_keyword, wp_class_keyword, internal_keyword, SCM_BOOL_F | |
339 | }; | |
16f691fb DE |
340 | char *s; |
341 | char *location; | |
ed3ef339 DE |
342 | int type_arg_pos = -1, access_type_arg_pos = -1, internal_arg_pos = -1; |
343 | int type = bp_breakpoint; | |
344 | int access_type = hw_write; | |
345 | int internal = 0; | |
346 | SCM result; | |
16f691fb | 347 | breakpoint_smob *bp_smob; |
ed3ef339 DE |
348 | |
349 | gdbscm_parse_function_args (FUNC_NAME, SCM_ARG1, keywords, "s#iit", | |
16f691fb | 350 | location_scm, &location, rest, |
ed3ef339 DE |
351 | &type_arg_pos, &type, |
352 | &access_type_arg_pos, &access_type, | |
353 | &internal_arg_pos, &internal); | |
354 | ||
355 | result = bpscm_make_breakpoint_smob (); | |
16f691fb DE |
356 | bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (result); |
357 | ||
358 | s = location; | |
359 | location = gdbscm_gc_xstrdup (s); | |
360 | xfree (s); | |
361 | ||
362 | switch (type) | |
363 | { | |
364 | case bp_breakpoint: | |
365 | if (access_type_arg_pos > 0) | |
366 | { | |
367 | gdbscm_misc_error (FUNC_NAME, access_type_arg_pos, | |
368 | scm_from_int (access_type), | |
369 | _("access type with breakpoint is not allowed")); | |
370 | } | |
371 | break; | |
372 | case bp_watchpoint: | |
373 | switch (access_type) | |
374 | { | |
375 | case hw_write: | |
376 | case hw_access: | |
377 | case hw_read: | |
378 | break; | |
379 | default: | |
380 | gdbscm_out_of_range_error (FUNC_NAME, access_type_arg_pos, | |
381 | scm_from_int (access_type), | |
382 | _("invalid watchpoint class")); | |
383 | } | |
384 | break; | |
385 | default: | |
386 | gdbscm_out_of_range_error (FUNC_NAME, access_type_arg_pos, | |
387 | scm_from_int (type), | |
388 | _("invalid breakpoint type")); | |
389 | } | |
390 | ||
391 | bp_smob->is_scheme_bkpt = 1; | |
392 | bp_smob->spec.location = location; | |
393 | bp_smob->spec.type = type; | |
394 | bp_smob->spec.access_type = access_type; | |
395 | bp_smob->spec.is_internal = internal; | |
396 | ||
397 | return result; | |
398 | } | |
399 | ||
400 | /* (register-breakpoint! <gdb:breakpoint>) -> unspecified | |
401 | ||
402 | It is an error to register a breakpoint created outside of Guile, | |
403 | or an already-registered breakpoint. */ | |
404 | ||
405 | static SCM | |
406 | gdbscm_register_breakpoint_x (SCM self) | |
407 | { | |
408 | breakpoint_smob *bp_smob | |
409 | = bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
492d29ea | 410 | struct gdb_exception except = exception_none; |
16f691fb DE |
411 | |
412 | /* We only support registering breakpoints created with make-breakpoint. */ | |
413 | if (!bp_smob->is_scheme_bkpt) | |
414 | scm_misc_error (FUNC_NAME, _("not a Scheme breakpoint"), SCM_EOL); | |
415 | ||
416 | if (bpscm_is_valid (bp_smob)) | |
417 | scm_misc_error (FUNC_NAME, _("breakpoint is already registered"), SCM_EOL); | |
418 | ||
419 | pending_breakpoint_scm = self; | |
ed3ef339 | 420 | |
492d29ea | 421 | TRY |
ed3ef339 | 422 | { |
16f691fb DE |
423 | char *location = bp_smob->spec.location; |
424 | int internal = bp_smob->spec.is_internal; | |
ed3ef339 | 425 | |
16f691fb | 426 | switch (bp_smob->spec.type) |
ed3ef339 DE |
427 | { |
428 | case bp_breakpoint: | |
429 | { | |
430 | create_breakpoint (get_current_arch (), | |
16f691fb | 431 | location, NULL, -1, NULL, |
ed3ef339 DE |
432 | 0, |
433 | 0, bp_breakpoint, | |
434 | 0, | |
435 | AUTO_BOOLEAN_TRUE, | |
436 | &bkpt_breakpoint_ops, | |
437 | 0, 1, internal, 0); | |
438 | break; | |
439 | } | |
440 | case bp_watchpoint: | |
441 | { | |
16f691fb DE |
442 | enum target_hw_bp_type access_type = bp_smob->spec.access_type; |
443 | ||
ed3ef339 | 444 | if (access_type == hw_write) |
16f691fb | 445 | watch_command_wrapper (location, 0, internal); |
ed3ef339 | 446 | else if (access_type == hw_access) |
16f691fb | 447 | awatch_command_wrapper (location, 0, internal); |
ed3ef339 | 448 | else if (access_type == hw_read) |
16f691fb | 449 | rwatch_command_wrapper (location, 0, internal); |
ed3ef339 | 450 | else |
16f691fb | 451 | gdb_assert_not_reached ("invalid access type"); |
ed3ef339 DE |
452 | break; |
453 | } | |
454 | default: | |
16f691fb | 455 | gdb_assert_not_reached ("invalid breakpoint type"); |
ed3ef339 | 456 | } |
ed3ef339 | 457 | } |
492d29ea PA |
458 | CATCH (ex, RETURN_MASK_ALL) |
459 | { | |
460 | except = ex; | |
461 | } | |
462 | END_CATCH | |
463 | ||
ed3ef339 DE |
464 | /* Ensure this gets reset, even if there's an error. */ |
465 | pending_breakpoint_scm = SCM_BOOL_F; | |
466 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
467 | ||
16f691fb | 468 | return SCM_UNSPECIFIED; |
ed3ef339 DE |
469 | } |
470 | ||
16f691fb DE |
471 | /* (delete-breakpoint! <gdb:breakpoint>) -> unspecified |
472 | Scheme function which deletes (removes) the underlying GDB breakpoint | |
473 | from GDB's list of breakpoints. This triggers the breakpoint_deleted | |
474 | observer which will call gdbscm_breakpoint_deleted; that function cleans | |
475 | up the Scheme bits. */ | |
ed3ef339 DE |
476 | |
477 | static SCM | |
16f691fb | 478 | gdbscm_delete_breakpoint_x (SCM self) |
ed3ef339 DE |
479 | { |
480 | breakpoint_smob *bp_smob | |
481 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
ed3ef339 | 482 | |
492d29ea | 483 | TRY |
ed3ef339 DE |
484 | { |
485 | delete_breakpoint (bp_smob->bp); | |
486 | } | |
492d29ea PA |
487 | CATCH (except, RETURN_MASK_ALL) |
488 | { | |
489 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
490 | } | |
491 | END_CATCH | |
ed3ef339 DE |
492 | |
493 | return SCM_UNSPECIFIED; | |
494 | } | |
495 | ||
496 | /* iterate_over_breakpoints function for gdbscm_breakpoints. */ | |
497 | ||
498 | static int | |
499 | bpscm_build_bp_list (struct breakpoint *bp, void *arg) | |
500 | { | |
501 | SCM *list = arg; | |
502 | breakpoint_smob *bp_smob = bp->scm_bp_object; | |
503 | ||
504 | /* Lazily create wrappers for breakpoints created outside Scheme. */ | |
505 | ||
506 | if (bp_smob == NULL) | |
507 | { | |
508 | if (bpscm_want_scm_wrapper_p (bp, 0)) | |
509 | { | |
510 | SCM bp_scm; | |
511 | ||
512 | bp_scm = bpscm_make_breakpoint_smob (); | |
513 | bpscm_attach_scm_to_breakpoint (bp, bp_scm); | |
514 | /* Refetch it. */ | |
515 | bp_smob = bp->scm_bp_object; | |
516 | } | |
517 | } | |
518 | ||
519 | /* Not all breakpoints will have a companion Scheme object. | |
520 | Only breakpoints that trigger the created_breakpoint observer call, | |
521 | and satisfy certain conditions (see bpscm_want_scm_wrapper_p), | |
522 | get a companion object (this includes Scheme-created breakpoints). */ | |
523 | ||
524 | if (bp_smob != NULL) | |
525 | *list = scm_cons (bp_smob->containing_scm, *list); | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
530 | /* (breakpoints) -> list | |
531 | Return a list of all breakpoints. */ | |
532 | ||
533 | static SCM | |
534 | gdbscm_breakpoints (void) | |
535 | { | |
536 | SCM list = SCM_EOL; | |
537 | ||
538 | /* If iterate_over_breakpoints returns non-NULL it means the iteration | |
539 | terminated early. | |
540 | In that case abandon building the list and return #f. */ | |
541 | if (iterate_over_breakpoints (bpscm_build_bp_list, &list) != NULL) | |
542 | return SCM_BOOL_F; | |
543 | ||
544 | return scm_reverse_x (list, SCM_EOL); | |
545 | } | |
546 | ||
547 | /* (breakpoint-valid? <gdb:breakpoint>) -> boolean | |
548 | Returns #t if SELF is still valid. */ | |
549 | ||
550 | static SCM | |
551 | gdbscm_breakpoint_valid_p (SCM self) | |
552 | { | |
553 | breakpoint_smob *bp_smob | |
554 | = bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
555 | ||
556 | return scm_from_bool (bpscm_is_valid (bp_smob)); | |
557 | } | |
558 | ||
559 | /* (breakpoint-enabled? <gdb:breakpoint>) -> boolean */ | |
560 | ||
561 | static SCM | |
562 | gdbscm_breakpoint_enabled_p (SCM self) | |
563 | { | |
564 | breakpoint_smob *bp_smob | |
565 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
566 | ||
567 | return scm_from_bool (bp_smob->bp->enable_state == bp_enabled); | |
568 | } | |
569 | ||
570 | /* (set-breakpoint-enabled? <gdb:breakpoint> boolean) -> unspecified */ | |
571 | ||
572 | static SCM | |
573 | gdbscm_set_breakpoint_enabled_x (SCM self, SCM newvalue) | |
574 | { | |
575 | breakpoint_smob *bp_smob | |
576 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
ed3ef339 DE |
577 | |
578 | SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME, | |
579 | _("boolean")); | |
580 | ||
492d29ea | 581 | TRY |
ed3ef339 DE |
582 | { |
583 | if (gdbscm_is_true (newvalue)) | |
584 | enable_breakpoint (bp_smob->bp); | |
585 | else | |
586 | disable_breakpoint (bp_smob->bp); | |
587 | } | |
492d29ea PA |
588 | CATCH (except, RETURN_MASK_ALL) |
589 | { | |
590 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
591 | } | |
592 | END_CATCH | |
ed3ef339 DE |
593 | |
594 | return SCM_UNSPECIFIED; | |
595 | } | |
596 | ||
597 | /* (breakpoint-silent? <gdb:breakpoint>) -> boolean */ | |
598 | ||
599 | static SCM | |
600 | gdbscm_breakpoint_silent_p (SCM self) | |
601 | { | |
602 | breakpoint_smob *bp_smob | |
603 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
604 | ||
605 | return scm_from_bool (bp_smob->bp->silent); | |
606 | } | |
607 | ||
608 | /* (set-breakpoint-silent?! <gdb:breakpoint> boolean) -> unspecified */ | |
609 | ||
610 | static SCM | |
611 | gdbscm_set_breakpoint_silent_x (SCM self, SCM newvalue) | |
612 | { | |
613 | breakpoint_smob *bp_smob | |
614 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
ed3ef339 DE |
615 | |
616 | SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME, | |
617 | _("boolean")); | |
618 | ||
492d29ea | 619 | TRY |
ed3ef339 DE |
620 | { |
621 | breakpoint_set_silent (bp_smob->bp, gdbscm_is_true (newvalue)); | |
622 | } | |
492d29ea PA |
623 | CATCH (except, RETURN_MASK_ALL) |
624 | { | |
625 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
626 | } | |
627 | END_CATCH | |
ed3ef339 DE |
628 | |
629 | return SCM_UNSPECIFIED; | |
630 | } | |
631 | ||
632 | /* (breakpoint-ignore-count <gdb:breakpoint>) -> integer */ | |
633 | ||
634 | static SCM | |
635 | gdbscm_breakpoint_ignore_count (SCM self) | |
636 | { | |
637 | breakpoint_smob *bp_smob | |
638 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
639 | ||
640 | return scm_from_long (bp_smob->bp->ignore_count); | |
641 | } | |
642 | ||
643 | /* (set-breakpoint-ignore-count! <gdb:breakpoint> integer) | |
644 | -> unspecified */ | |
645 | ||
646 | static SCM | |
647 | gdbscm_set_breakpoint_ignore_count_x (SCM self, SCM newvalue) | |
648 | { | |
649 | breakpoint_smob *bp_smob | |
650 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
651 | long value; | |
ed3ef339 DE |
652 | |
653 | SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX), | |
654 | newvalue, SCM_ARG2, FUNC_NAME, _("integer")); | |
655 | ||
656 | value = scm_to_long (newvalue); | |
657 | if (value < 0) | |
658 | value = 0; | |
659 | ||
492d29ea | 660 | TRY |
ed3ef339 DE |
661 | { |
662 | set_ignore_count (bp_smob->number, (int) value, 0); | |
663 | } | |
492d29ea PA |
664 | CATCH (except, RETURN_MASK_ALL) |
665 | { | |
666 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
667 | } | |
668 | END_CATCH | |
ed3ef339 DE |
669 | |
670 | return SCM_UNSPECIFIED; | |
671 | } | |
672 | ||
673 | /* (breakpoint-hit-count <gdb:breakpoint>) -> integer */ | |
674 | ||
675 | static SCM | |
676 | gdbscm_breakpoint_hit_count (SCM self) | |
677 | { | |
678 | breakpoint_smob *bp_smob | |
679 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
680 | ||
681 | return scm_from_long (bp_smob->bp->hit_count); | |
682 | } | |
683 | ||
684 | /* (set-breakpoint-hit-count! <gdb:breakpoint> integer) -> unspecified */ | |
685 | ||
686 | static SCM | |
687 | gdbscm_set_breakpoint_hit_count_x (SCM self, SCM newvalue) | |
688 | { | |
689 | breakpoint_smob *bp_smob | |
690 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
691 | long value; | |
692 | ||
693 | SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX), | |
694 | newvalue, SCM_ARG2, FUNC_NAME, _("integer")); | |
695 | ||
696 | value = scm_to_long (newvalue); | |
697 | if (value < 0) | |
698 | value = 0; | |
699 | ||
700 | if (value != 0) | |
701 | { | |
702 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
703 | _("hit-count must be zero")); | |
704 | } | |
705 | ||
706 | bp_smob->bp->hit_count = 0; | |
707 | ||
708 | return SCM_UNSPECIFIED; | |
709 | } | |
710 | ||
711 | /* (breakpoint-thread <gdb:breakpoint>) -> integer */ | |
712 | ||
713 | static SCM | |
714 | gdbscm_breakpoint_thread (SCM self) | |
715 | { | |
716 | breakpoint_smob *bp_smob | |
717 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
718 | ||
719 | if (bp_smob->bp->thread == -1) | |
720 | return SCM_BOOL_F; | |
721 | ||
722 | return scm_from_long (bp_smob->bp->thread); | |
723 | } | |
724 | ||
725 | /* (set-breakpoint-thread! <gdb:breakpoint> integer) -> unspecified */ | |
726 | ||
727 | static SCM | |
728 | gdbscm_set_breakpoint_thread_x (SCM self, SCM newvalue) | |
729 | { | |
730 | breakpoint_smob *bp_smob | |
731 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
732 | long id; | |
733 | ||
734 | if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX)) | |
735 | { | |
736 | id = scm_to_long (newvalue); | |
737 | if (! valid_thread_id (id)) | |
738 | { | |
739 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
740 | _("invalid thread id")); | |
741 | } | |
742 | } | |
743 | else if (gdbscm_is_false (newvalue)) | |
744 | id = -1; | |
745 | else | |
746 | SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f")); | |
747 | ||
748 | breakpoint_set_thread (bp_smob->bp, id); | |
749 | ||
750 | return SCM_UNSPECIFIED; | |
751 | } | |
752 | ||
753 | /* (breakpoint-task <gdb:breakpoint>) -> integer */ | |
754 | ||
755 | static SCM | |
756 | gdbscm_breakpoint_task (SCM self) | |
757 | { | |
758 | breakpoint_smob *bp_smob | |
759 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
760 | ||
761 | if (bp_smob->bp->task == 0) | |
762 | return SCM_BOOL_F; | |
763 | ||
764 | return scm_from_long (bp_smob->bp->task); | |
765 | } | |
766 | ||
767 | /* (set-breakpoint-task! <gdb:breakpoint> integer) -> unspecified */ | |
768 | ||
769 | static SCM | |
770 | gdbscm_set_breakpoint_task_x (SCM self, SCM newvalue) | |
771 | { | |
772 | breakpoint_smob *bp_smob | |
773 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
774 | long id; | |
775 | int valid_id = 0; | |
ed3ef339 DE |
776 | |
777 | if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX)) | |
778 | { | |
779 | id = scm_to_long (newvalue); | |
780 | ||
492d29ea | 781 | TRY |
ed3ef339 DE |
782 | { |
783 | valid_id = valid_task_id (id); | |
784 | } | |
492d29ea PA |
785 | CATCH (except, RETURN_MASK_ALL) |
786 | { | |
787 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
788 | } | |
789 | END_CATCH | |
ed3ef339 DE |
790 | |
791 | if (! valid_id) | |
792 | { | |
793 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
794 | _("invalid task id")); | |
795 | } | |
796 | } | |
797 | else if (gdbscm_is_false (newvalue)) | |
798 | id = 0; | |
799 | else | |
800 | SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f")); | |
801 | ||
492d29ea | 802 | TRY |
ed3ef339 DE |
803 | { |
804 | breakpoint_set_task (bp_smob->bp, id); | |
805 | } | |
492d29ea PA |
806 | CATCH (except, RETURN_MASK_ALL) |
807 | { | |
808 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
809 | } | |
810 | END_CATCH | |
ed3ef339 DE |
811 | |
812 | return SCM_UNSPECIFIED; | |
813 | } | |
814 | ||
815 | /* (breakpoint-location <gdb:breakpoint>) -> string */ | |
816 | ||
817 | static SCM | |
818 | gdbscm_breakpoint_location (SCM self) | |
819 | { | |
820 | breakpoint_smob *bp_smob | |
821 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
822 | char *str; | |
823 | ||
824 | if (bp_smob->bp->type != bp_breakpoint) | |
825 | return SCM_BOOL_F; | |
826 | ||
827 | str = bp_smob->bp->addr_string; | |
828 | if (! str) | |
829 | str = ""; | |
830 | ||
831 | return gdbscm_scm_from_c_string (str); | |
832 | } | |
833 | ||
834 | /* (breakpoint-expression <gdb:breakpoint>) -> string | |
835 | This is only valid for watchpoints. | |
836 | Returns #f for non-watchpoints. */ | |
837 | ||
838 | static SCM | |
839 | gdbscm_breakpoint_expression (SCM self) | |
840 | { | |
841 | breakpoint_smob *bp_smob | |
842 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
843 | char *str; | |
844 | struct watchpoint *wp; | |
845 | ||
846 | if (!is_watchpoint (bp_smob->bp)) | |
847 | return SCM_BOOL_F; | |
848 | ||
849 | wp = (struct watchpoint *) bp_smob->bp; | |
850 | ||
851 | str = wp->exp_string; | |
852 | if (! str) | |
853 | str = ""; | |
854 | ||
855 | return gdbscm_scm_from_c_string (str); | |
856 | } | |
857 | ||
858 | /* (breakpoint-condition <gdb:breakpoint>) -> string */ | |
859 | ||
860 | static SCM | |
861 | gdbscm_breakpoint_condition (SCM self) | |
862 | { | |
863 | breakpoint_smob *bp_smob | |
864 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
865 | char *str; | |
866 | ||
867 | str = bp_smob->bp->cond_string; | |
868 | if (! str) | |
869 | return SCM_BOOL_F; | |
870 | ||
871 | return gdbscm_scm_from_c_string (str); | |
872 | } | |
873 | ||
874 | /* (set-breakpoint-condition! <gdb:breakpoint> string|#f) | |
875 | -> unspecified */ | |
876 | ||
877 | static SCM | |
878 | gdbscm_set_breakpoint_condition_x (SCM self, SCM newvalue) | |
879 | { | |
880 | breakpoint_smob *bp_smob | |
881 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
882 | char *exp; | |
492d29ea | 883 | struct gdb_exception except = exception_none; |
ed3ef339 DE |
884 | |
885 | SCM_ASSERT_TYPE (scm_is_string (newvalue) || gdbscm_is_false (newvalue), | |
886 | newvalue, SCM_ARG2, FUNC_NAME, | |
887 | _("string or #f")); | |
888 | ||
889 | if (gdbscm_is_false (newvalue)) | |
890 | exp = NULL; | |
891 | else | |
892 | exp = gdbscm_scm_to_c_string (newvalue); | |
893 | ||
492d29ea | 894 | TRY |
ed3ef339 DE |
895 | { |
896 | set_breakpoint_condition (bp_smob->bp, exp ? exp : "", 0); | |
897 | } | |
492d29ea PA |
898 | CATCH (ex, RETURN_MASK_ALL) |
899 | { | |
900 | except = ex; | |
901 | } | |
902 | END_CATCH | |
903 | ||
ed3ef339 DE |
904 | xfree (exp); |
905 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
906 | ||
907 | return SCM_UNSPECIFIED; | |
908 | } | |
909 | ||
910 | /* (breakpoint-stop <gdb:breakpoint>) -> procedure or #f */ | |
911 | ||
912 | static SCM | |
913 | gdbscm_breakpoint_stop (SCM self) | |
914 | { | |
915 | breakpoint_smob *bp_smob | |
916 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
917 | ||
918 | return bp_smob->stop; | |
919 | } | |
920 | ||
921 | /* (set-breakpoint-stop! <gdb:breakpoint> procedure|#f) | |
922 | -> unspecified */ | |
923 | ||
924 | static SCM | |
925 | gdbscm_set_breakpoint_stop_x (SCM self, SCM newvalue) | |
926 | { | |
927 | breakpoint_smob *bp_smob | |
928 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
929 | const struct extension_language_defn *extlang = NULL; | |
930 | ||
931 | SCM_ASSERT_TYPE (gdbscm_is_procedure (newvalue) | |
932 | || gdbscm_is_false (newvalue), | |
933 | newvalue, SCM_ARG2, FUNC_NAME, | |
934 | _("procedure or #f")); | |
935 | ||
936 | if (bp_smob->bp->cond_string != NULL) | |
937 | extlang = get_ext_lang_defn (EXT_LANG_GDB); | |
938 | if (extlang == NULL) | |
939 | extlang = get_breakpoint_cond_ext_lang (bp_smob->bp, EXT_LANG_GUILE); | |
940 | if (extlang != NULL) | |
941 | { | |
942 | char *error_text | |
943 | = xstrprintf (_("Only one stop condition allowed. There is" | |
944 | " currently a %s stop condition defined for" | |
945 | " this breakpoint."), | |
946 | ext_lang_capitalized_name (extlang)); | |
947 | ||
948 | scm_dynwind_begin (0); | |
949 | gdbscm_dynwind_xfree (error_text); | |
950 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self, error_text); | |
951 | /* The following line, while unnecessary, is present for completeness | |
952 | sake. */ | |
953 | scm_dynwind_end (); | |
954 | } | |
955 | ||
956 | bp_smob->stop = newvalue; | |
957 | ||
958 | return SCM_UNSPECIFIED; | |
959 | } | |
960 | ||
961 | /* (breakpoint-commands <gdb:breakpoint>) -> string */ | |
962 | ||
963 | static SCM | |
964 | gdbscm_breakpoint_commands (SCM self) | |
965 | { | |
966 | breakpoint_smob *bp_smob | |
967 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
968 | struct breakpoint *bp; | |
969 | long length; | |
ed3ef339 DE |
970 | struct ui_file *string_file; |
971 | struct cleanup *chain; | |
972 | SCM result; | |
973 | char *cmdstr; | |
974 | ||
975 | bp = bp_smob->bp; | |
976 | ||
977 | if (bp->commands == NULL) | |
978 | return SCM_BOOL_F; | |
979 | ||
980 | string_file = mem_fileopen (); | |
981 | chain = make_cleanup_ui_file_delete (string_file); | |
982 | ||
983 | ui_out_redirect (current_uiout, string_file); | |
492d29ea | 984 | TRY |
ed3ef339 DE |
985 | { |
986 | print_command_lines (current_uiout, breakpoint_commands (bp), 0); | |
987 | } | |
988 | ui_out_redirect (current_uiout, NULL); | |
492d29ea | 989 | CATCH (except, RETURN_MASK_ALL) |
ed3ef339 DE |
990 | { |
991 | do_cleanups (chain); | |
992 | gdbscm_throw_gdb_exception (except); | |
993 | } | |
492d29ea | 994 | END_CATCH |
ed3ef339 DE |
995 | |
996 | cmdstr = ui_file_xstrdup (string_file, &length); | |
997 | make_cleanup (xfree, cmdstr); | |
998 | result = gdbscm_scm_from_c_string (cmdstr); | |
999 | ||
1000 | do_cleanups (chain); | |
1001 | return result; | |
1002 | } | |
1003 | ||
1004 | /* (breakpoint-type <gdb:breakpoint>) -> integer */ | |
1005 | ||
1006 | static SCM | |
1007 | gdbscm_breakpoint_type (SCM self) | |
1008 | { | |
1009 | breakpoint_smob *bp_smob | |
1010 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
1011 | ||
1012 | return scm_from_long (bp_smob->bp->type); | |
1013 | } | |
1014 | ||
1015 | /* (breakpoint-visible? <gdb:breakpoint>) -> boolean */ | |
1016 | ||
1017 | static SCM | |
1018 | gdbscm_breakpoint_visible (SCM self) | |
1019 | { | |
1020 | breakpoint_smob *bp_smob | |
1021 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
1022 | ||
1023 | return scm_from_bool (bp_smob->bp->number >= 0); | |
1024 | } | |
1025 | ||
1026 | /* (breakpoint-number <gdb:breakpoint>) -> integer */ | |
1027 | ||
1028 | static SCM | |
1029 | gdbscm_breakpoint_number (SCM self) | |
1030 | { | |
1031 | breakpoint_smob *bp_smob | |
1032 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
1033 | ||
1034 | return scm_from_long (bp_smob->number); | |
1035 | } | |
1036 | \f | |
1037 | /* Return TRUE if "stop" has been set for this breakpoint. | |
1038 | ||
1039 | This is the extension_language_ops.breakpoint_has_cond "method". */ | |
1040 | ||
1041 | int | |
1042 | gdbscm_breakpoint_has_cond (const struct extension_language_defn *extlang, | |
1043 | struct breakpoint *b) | |
1044 | { | |
1045 | breakpoint_smob *bp_smob = b->scm_bp_object; | |
1046 | ||
1047 | if (bp_smob == NULL) | |
1048 | return 0; | |
1049 | ||
1050 | return gdbscm_is_procedure (bp_smob->stop); | |
1051 | } | |
1052 | ||
1053 | /* Call the "stop" method in the breakpoint class. | |
1054 | This must only be called if gdbscm_breakpoint_has_cond returns true. | |
1055 | If the stop method returns #t, the inferior will be stopped at the | |
1056 | breakpoint. Otherwise the inferior will be allowed to continue | |
1057 | (assuming other conditions don't indicate "stop"). | |
1058 | ||
1059 | This is the extension_language_ops.breakpoint_cond_says_stop "method". */ | |
1060 | ||
1061 | enum ext_lang_bp_stop | |
1062 | gdbscm_breakpoint_cond_says_stop | |
1063 | (const struct extension_language_defn *extlang, struct breakpoint *b) | |
1064 | { | |
1065 | breakpoint_smob *bp_smob = b->scm_bp_object; | |
1066 | SCM predicate_result; | |
1067 | int stop; | |
1068 | ||
1069 | if (bp_smob == NULL) | |
1070 | return EXT_LANG_BP_STOP_UNSET; | |
1071 | if (!gdbscm_is_procedure (bp_smob->stop)) | |
1072 | return EXT_LANG_BP_STOP_UNSET; | |
1073 | ||
1074 | stop = 1; | |
1075 | ||
1076 | predicate_result | |
1077 | = gdbscm_safe_call_1 (bp_smob->stop, bp_smob->containing_scm, NULL); | |
1078 | ||
1079 | if (gdbscm_is_exception (predicate_result)) | |
1080 | ; /* Exception already printed. */ | |
1081 | /* If the "stop" function returns #f that means | |
1082 | the Scheme breakpoint wants GDB to continue. */ | |
1083 | else if (gdbscm_is_false (predicate_result)) | |
1084 | stop = 0; | |
1085 | ||
1086 | return stop ? EXT_LANG_BP_STOP_YES : EXT_LANG_BP_STOP_NO; | |
1087 | } | |
1088 | \f | |
1089 | /* Event callback functions. */ | |
1090 | ||
1091 | /* Callback that is used when a breakpoint is created. | |
1092 | For breakpoints created by Scheme, i.e., gdbscm_create_breakpoint_x, finish | |
1093 | object creation by connecting the Scheme wrapper to the gdb object. | |
1094 | We ignore breakpoints created from gdb or python here, we create the | |
1095 | Scheme wrapper for those when there's a need to, e.g., | |
1096 | gdbscm_breakpoints. */ | |
1097 | ||
1098 | static void | |
1099 | bpscm_breakpoint_created (struct breakpoint *bp) | |
1100 | { | |
1101 | SCM bp_scm; | |
1102 | ||
1103 | if (gdbscm_is_false (pending_breakpoint_scm)) | |
1104 | return; | |
1105 | ||
1106 | /* Verify our caller error checked the user's request. */ | |
1107 | gdb_assert (bpscm_want_scm_wrapper_p (bp, 1)); | |
1108 | ||
1109 | bp_scm = pending_breakpoint_scm; | |
1110 | pending_breakpoint_scm = SCM_BOOL_F; | |
1111 | ||
1112 | bpscm_attach_scm_to_breakpoint (bp, bp_scm); | |
1113 | } | |
1114 | ||
1115 | /* Callback that is used when a breakpoint is deleted. This will | |
1116 | invalidate the corresponding Scheme object. */ | |
1117 | ||
1118 | static void | |
1119 | bpscm_breakpoint_deleted (struct breakpoint *b) | |
1120 | { | |
1121 | int num = b->number; | |
1122 | struct breakpoint *bp; | |
1123 | ||
1124 | /* TODO: Why the lookup? We have B. */ | |
1125 | ||
1126 | bp = get_breakpoint (num); | |
1127 | if (bp) | |
1128 | { | |
1129 | breakpoint_smob *bp_smob = bp->scm_bp_object; | |
1130 | ||
1131 | if (bp_smob) | |
1132 | { | |
1133 | bp_smob->bp = NULL; | |
16f691fb DE |
1134 | bp_smob->number = -1; |
1135 | bp_smob->stop = SCM_BOOL_F; | |
ed3ef339 DE |
1136 | scm_gc_unprotect_object (bp_smob->containing_scm); |
1137 | } | |
1138 | } | |
1139 | } | |
1140 | \f | |
1141 | /* Initialize the Scheme breakpoint code. */ | |
1142 | ||
1143 | static const scheme_integer_constant breakpoint_integer_constants[] = | |
1144 | { | |
1145 | { "BP_NONE", bp_none }, | |
1146 | { "BP_BREAKPOINT", bp_breakpoint }, | |
1147 | { "BP_WATCHPOINT", bp_watchpoint }, | |
1148 | { "BP_HARDWARE_WATCHPOINT", bp_hardware_watchpoint }, | |
1149 | { "BP_READ_WATCHPOINT", bp_read_watchpoint }, | |
1150 | { "BP_ACCESS_WATCHPOINT", bp_access_watchpoint }, | |
1151 | ||
1152 | { "WP_READ", hw_read }, | |
1153 | { "WP_WRITE", hw_write }, | |
1154 | { "WP_ACCESS", hw_access }, | |
1155 | ||
1156 | END_INTEGER_CONSTANTS | |
1157 | }; | |
1158 | ||
1159 | static const scheme_function breakpoint_functions[] = | |
1160 | { | |
16f691fb | 1161 | { "make-breakpoint", 1, 0, 1, gdbscm_make_breakpoint, |
ed3ef339 | 1162 | "\ |
16f691fb | 1163 | Create a GDB breakpoint object.\n\ |
ed3ef339 DE |
1164 | \n\ |
1165 | Arguments:\n\ | |
16f691fb DE |
1166 | location [#:type <type>] [#:wp-class <wp-class>] [#:internal <bool>]\n\ |
1167 | Returns:\n\ | |
1168 | <gdb:breakpoint object" }, | |
1169 | ||
1170 | { "register-breakpoint!", 1, 0, 0, gdbscm_register_breakpoint_x, | |
1171 | "\ | |
1172 | Register a <gdb:breakpoint> object with GDB." }, | |
ed3ef339 | 1173 | |
16f691fb | 1174 | { "delete-breakpoint!", 1, 0, 0, gdbscm_delete_breakpoint_x, |
ed3ef339 DE |
1175 | "\ |
1176 | Delete the breakpoint from GDB." }, | |
1177 | ||
1178 | { "breakpoints", 0, 0, 0, gdbscm_breakpoints, | |
1179 | "\ | |
1180 | Return a list of all GDB breakpoints.\n\ | |
1181 | \n\ | |
1182 | Arguments: none" }, | |
1183 | ||
1184 | { "breakpoint?", 1, 0, 0, gdbscm_breakpoint_p, | |
1185 | "\ | |
1186 | Return #t if the object is a <gdb:breakpoint> object." }, | |
1187 | ||
1188 | { "breakpoint-valid?", 1, 0, 0, gdbscm_breakpoint_valid_p, | |
1189 | "\ | |
1190 | Return #t if the breakpoint has not been deleted from GDB." }, | |
1191 | ||
1192 | { "breakpoint-number", 1, 0, 0, gdbscm_breakpoint_number, | |
1193 | "\ | |
1194 | Return the breakpoint's number." }, | |
1195 | ||
1196 | { "breakpoint-type", 1, 0, 0, gdbscm_breakpoint_type, | |
1197 | "\ | |
1198 | Return the type of the breakpoint." }, | |
1199 | ||
1200 | { "breakpoint-visible?", 1, 0, 0, gdbscm_breakpoint_visible, | |
1201 | "\ | |
1202 | Return #t if the breakpoint is visible to the user." }, | |
1203 | ||
1204 | { "breakpoint-location", 1, 0, 0, gdbscm_breakpoint_location, | |
1205 | "\ | |
1206 | Return the location of the breakpoint as specified by the user." }, | |
1207 | ||
1208 | { "breakpoint-expression", 1, 0, 0, gdbscm_breakpoint_expression, | |
1209 | "\ | |
1210 | Return the expression of the breakpoint as specified by the user.\n\ | |
1211 | Valid for watchpoints only, returns #f for non-watchpoints." }, | |
1212 | ||
1213 | { "breakpoint-enabled?", 1, 0, 0, gdbscm_breakpoint_enabled_p, | |
1214 | "\ | |
1215 | Return #t if the breakpoint is enabled." }, | |
1216 | ||
1217 | { "set-breakpoint-enabled!", 2, 0, 0, gdbscm_set_breakpoint_enabled_x, | |
1218 | "\ | |
1219 | Set the breakpoint's enabled state.\n\ | |
1220 | \n\ | |
5c6d4fb2 | 1221 | Arguments: <gdb:breakpoint> boolean" }, |
ed3ef339 DE |
1222 | |
1223 | { "breakpoint-silent?", 1, 0, 0, gdbscm_breakpoint_silent_p, | |
1224 | "\ | |
1225 | Return #t if the breakpoint is silent." }, | |
1226 | ||
1227 | { "set-breakpoint-silent!", 2, 0, 0, gdbscm_set_breakpoint_silent_x, | |
1228 | "\ | |
1229 | Set the breakpoint's silent state.\n\ | |
1230 | \n\ | |
1231 | Arguments: <gdb:breakpoint> boolean" }, | |
1232 | ||
1233 | { "breakpoint-ignore-count", 1, 0, 0, gdbscm_breakpoint_ignore_count, | |
1234 | "\ | |
1235 | Return the breakpoint's \"ignore\" count." }, | |
1236 | ||
1237 | { "set-breakpoint-ignore-count!", 2, 0, 0, | |
1238 | gdbscm_set_breakpoint_ignore_count_x, | |
1239 | "\ | |
1240 | Set the breakpoint's \"ignore\" count.\n\ | |
1241 | \n\ | |
1242 | Arguments: <gdb:breakpoint> count" }, | |
1243 | ||
1244 | { "breakpoint-hit-count", 1, 0, 0, gdbscm_breakpoint_hit_count, | |
1245 | "\ | |
1246 | Return the breakpoint's \"hit\" count." }, | |
1247 | ||
1248 | { "set-breakpoint-hit-count!", 2, 0, 0, gdbscm_set_breakpoint_hit_count_x, | |
1249 | "\ | |
1250 | Set the breakpoint's \"hit\" count. The value must be zero.\n\ | |
1251 | \n\ | |
1252 | Arguments: <gdb:breakpoint> 0" }, | |
1253 | ||
1254 | { "breakpoint-thread", 1, 0, 0, gdbscm_breakpoint_thread, | |
1255 | "\ | |
1256 | Return the breakpoint's thread id or #f if there isn't one." }, | |
1257 | ||
1258 | { "set-breakpoint-thread!", 2, 0, 0, gdbscm_set_breakpoint_thread_x, | |
1259 | "\ | |
1260 | Set the thread id for this breakpoint.\n\ | |
1261 | \n\ | |
1262 | Arguments: <gdb:breakpoint> thread-id" }, | |
1263 | ||
1264 | { "breakpoint-task", 1, 0, 0, gdbscm_breakpoint_task, | |
1265 | "\ | |
1266 | Return the breakpoint's Ada task-id or #f if there isn't one." }, | |
1267 | ||
1268 | { "set-breakpoint-task!", 2, 0, 0, gdbscm_set_breakpoint_task_x, | |
1269 | "\ | |
1270 | Set the breakpoint's Ada task-id.\n\ | |
1271 | \n\ | |
1272 | Arguments: <gdb:breakpoint> task-id" }, | |
1273 | ||
1274 | { "breakpoint-condition", 1, 0, 0, gdbscm_breakpoint_condition, | |
1275 | "\ | |
1276 | Return the breakpoint's condition as specified by the user.\n\ | |
1277 | Return #f if there isn't one." }, | |
1278 | ||
1279 | { "set-breakpoint-condition!", 2, 0, 0, gdbscm_set_breakpoint_condition_x, | |
1280 | "\ | |
1281 | Set the breakpoint's condition.\n\ | |
1282 | \n\ | |
1283 | Arguments: <gdb:breakpoint> condition\n\ | |
1284 | condition: a string" }, | |
1285 | ||
1286 | { "breakpoint-stop", 1, 0, 0, gdbscm_breakpoint_stop, | |
1287 | "\ | |
1288 | Return the breakpoint's stop predicate.\n\ | |
1289 | Return #f if there isn't one." }, | |
1290 | ||
1291 | { "set-breakpoint-stop!", 2, 0, 0, gdbscm_set_breakpoint_stop_x, | |
1292 | "\ | |
1293 | Set the breakpoint's stop predicate.\n\ | |
1294 | \n\ | |
1295 | Arguments: <gdb:breakpoint> procedure\n\ | |
1296 | procedure: A procedure of one argument, the breakpoint.\n\ | |
1297 | Its result is true if program execution should stop." }, | |
1298 | ||
1299 | { "breakpoint-commands", 1, 0, 0, gdbscm_breakpoint_commands, | |
1300 | "\ | |
1301 | Return the breakpoint's commands." }, | |
1302 | ||
1303 | END_FUNCTIONS | |
1304 | }; | |
1305 | ||
1306 | void | |
1307 | gdbscm_initialize_breakpoints (void) | |
1308 | { | |
1309 | breakpoint_smob_tag | |
1310 | = gdbscm_make_smob_type (breakpoint_smob_name, sizeof (breakpoint_smob)); | |
ed3ef339 DE |
1311 | scm_set_smob_free (breakpoint_smob_tag, bpscm_free_breakpoint_smob); |
1312 | scm_set_smob_print (breakpoint_smob_tag, bpscm_print_breakpoint_smob); | |
1313 | ||
1314 | observer_attach_breakpoint_created (bpscm_breakpoint_created); | |
1315 | observer_attach_breakpoint_deleted (bpscm_breakpoint_deleted); | |
1316 | ||
1317 | gdbscm_define_integer_constants (breakpoint_integer_constants, 1); | |
1318 | gdbscm_define_functions (breakpoint_functions, 1); | |
1319 | ||
1320 | type_keyword = scm_from_latin1_keyword ("type"); | |
1321 | wp_class_keyword = scm_from_latin1_keyword ("wp-class"); | |
1322 | internal_keyword = scm_from_latin1_keyword ("internal"); | |
1323 | } |