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ed3ef339 DE |
1 | /* Scheme interface to breakpoints. |
2 | ||
3 | Copyright (C) 2008-2014 Free Software Foundation, Inc. | |
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" | |
25 | #include "exceptions.h" | |
26 | #include "breakpoint.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "gdbthread.h" | |
29 | #include "observer.h" | |
30 | #include "cli/cli-script.h" | |
31 | #include "ada-lang.h" | |
32 | #include "arch-utils.h" | |
33 | #include "language.h" | |
34 | #include "guile-internal.h" | |
35 | ||
36 | /* The <gdb:breakpoint> smob. | |
16f691fb DE |
37 | N.B.: The name of this struct is known to breakpoint.h. |
38 | ||
39 | Note: Breakpoints are added to gdb using a two step process: | |
40 | 1) Call make-breakpoint to create a <gdb:breakpoint> object. | |
41 | 2) Call register-breakpoint! to add the breakpoint to gdb. | |
42 | It is done this way so that the constructor, make-breakpoint, doesn't have | |
43 | any side-effects. This means that the smob needs to store everything | |
44 | that was passed to make-breakpoint. */ | |
ed3ef339 DE |
45 | |
46 | typedef struct gdbscm_breakpoint_object | |
47 | { | |
48 | /* This always appears first. */ | |
49 | gdb_smob base; | |
50 | ||
16f691fb DE |
51 | /* Non-zero if this breakpoint was created with make-breakpoint. */ |
52 | int is_scheme_bkpt; | |
53 | ||
54 | /* For breakpoints created with make-breakpoint, these are the parameters | |
55 | that were passed to make-breakpoint. These values are not used except | |
56 | to register the breakpoint with GDB. */ | |
57 | struct | |
58 | { | |
59 | /* The string representation of the breakpoint. | |
60 | Space for this lives in GC space. */ | |
61 | char *location; | |
62 | ||
63 | /* The kind of breakpoint. | |
64 | At the moment this can only be one of bp_breakpoint, bp_watchpoint. */ | |
65 | enum bptype type; | |
66 | ||
67 | /* If a watchpoint, the kind of watchpoint. */ | |
68 | enum target_hw_bp_type access_type; | |
69 | ||
70 | /* Non-zero if the breakpoint is an "internal" breakpoint. */ | |
71 | int is_internal; | |
72 | } spec; | |
73 | ||
ed3ef339 | 74 | /* The breakpoint number according to gdb. |
16f691fb DE |
75 | For breakpoints created from Scheme, this has the value -1 until the |
76 | breakpoint is registered with gdb. | |
ed3ef339 DE |
77 | This is recorded here because BP will be NULL when deleted. */ |
78 | int number; | |
79 | ||
16f691fb DE |
80 | /* The gdb breakpoint object, or NULL if the breakpoint has not been |
81 | registered yet, or has been deleted. */ | |
ed3ef339 DE |
82 | struct breakpoint *bp; |
83 | ||
84 | /* Backlink to our containing <gdb:breakpoint> smob. | |
85 | This is needed when we are deleted, we need to unprotect the object | |
86 | from GC. */ | |
87 | SCM containing_scm; | |
88 | ||
89 | /* A stop condition or #f. */ | |
90 | SCM stop; | |
91 | } breakpoint_smob; | |
92 | ||
93 | static const char breakpoint_smob_name[] = "gdb:breakpoint"; | |
94 | ||
95 | /* The tag Guile knows the breakpoint smob by. */ | |
96 | static scm_t_bits breakpoint_smob_tag; | |
97 | ||
98 | /* Variables used to pass information between the breakpoint_smob | |
99 | constructor and the breakpoint-created hook function. */ | |
100 | static SCM pending_breakpoint_scm = SCM_BOOL_F; | |
101 | ||
102 | /* Keywords used by create-breakpoint!. */ | |
103 | static SCM type_keyword; | |
104 | static SCM wp_class_keyword; | |
105 | static SCM internal_keyword; | |
106 | \f | |
107 | /* Administrivia for breakpoint smobs. */ | |
108 | ||
ed3ef339 DE |
109 | /* The smob "free" function for <gdb:breakpoint>. */ |
110 | ||
111 | static size_t | |
112 | bpscm_free_breakpoint_smob (SCM self) | |
113 | { | |
114 | breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (self); | |
115 | ||
116 | if (bp_smob->bp) | |
117 | bp_smob->bp->scm_bp_object = NULL; | |
118 | ||
119 | /* Not necessary, done to catch bugs. */ | |
120 | bp_smob->bp = NULL; | |
121 | bp_smob->containing_scm = SCM_UNDEFINED; | |
122 | bp_smob->stop = SCM_UNDEFINED; | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
127 | /* Return the name of TYPE. | |
128 | This doesn't handle all types, just the ones we export. */ | |
129 | ||
130 | static const char * | |
131 | bpscm_type_to_string (enum bptype type) | |
132 | { | |
133 | switch (type) | |
134 | { | |
135 | case bp_none: return "BP_NONE"; | |
136 | case bp_breakpoint: return "BP_BREAKPOINT"; | |
137 | case bp_watchpoint: return "BP_WATCHPOINT"; | |
138 | case bp_hardware_watchpoint: return "BP_HARDWARE_WATCHPOINT"; | |
139 | case bp_read_watchpoint: return "BP_READ_WATCHPOINT"; | |
140 | case bp_access_watchpoint: return "BP_ACCESS_WATCHPOINT"; | |
141 | default: return "internal/other"; | |
142 | } | |
143 | } | |
144 | ||
145 | /* Return the name of ENABLE_STATE. */ | |
146 | ||
147 | static const char * | |
148 | bpscm_enable_state_to_string (enum enable_state enable_state) | |
149 | { | |
150 | switch (enable_state) | |
151 | { | |
152 | case bp_disabled: return "disabled"; | |
153 | case bp_enabled: return "enabled"; | |
154 | case bp_call_disabled: return "call_disabled"; | |
155 | case bp_permanent: return "permanent"; | |
156 | default: return "unknown"; | |
157 | } | |
158 | } | |
159 | ||
160 | /* The smob "print" function for <gdb:breakpoint>. */ | |
161 | ||
162 | static int | |
163 | bpscm_print_breakpoint_smob (SCM self, SCM port, scm_print_state *pstate) | |
164 | { | |
165 | breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (self); | |
166 | struct breakpoint *b = bp_smob->bp; | |
167 | ||
168 | gdbscm_printf (port, "#<%s", breakpoint_smob_name); | |
169 | ||
170 | /* Only print what we export to the user. | |
171 | The rest are possibly internal implementation details. */ | |
172 | ||
173 | gdbscm_printf (port, " #%d", bp_smob->number); | |
174 | ||
175 | /* Careful, the breakpoint may be invalid. */ | |
176 | if (b != NULL) | |
177 | { | |
178 | gdbscm_printf (port, " %s %s %s", | |
179 | bpscm_type_to_string (b->type), | |
180 | bpscm_enable_state_to_string (b->enable_state), | |
181 | b->silent ? "silent" : "noisy"); | |
182 | ||
183 | gdbscm_printf (port, " hit:%d", b->hit_count); | |
184 | gdbscm_printf (port, " ignore:%d", b->ignore_count); | |
185 | ||
186 | if (b->addr_string != NULL) | |
187 | gdbscm_printf (port, " @%s", b->addr_string); | |
188 | } | |
189 | ||
190 | scm_puts (">", port); | |
191 | ||
192 | scm_remember_upto_here_1 (self); | |
193 | ||
194 | /* Non-zero means success. */ | |
195 | return 1; | |
196 | } | |
197 | ||
198 | /* Low level routine to create a <gdb:breakpoint> object. */ | |
199 | ||
200 | static SCM | |
201 | bpscm_make_breakpoint_smob (void) | |
202 | { | |
203 | breakpoint_smob *bp_smob = (breakpoint_smob *) | |
204 | scm_gc_malloc (sizeof (breakpoint_smob), breakpoint_smob_name); | |
205 | SCM bp_scm; | |
206 | ||
16f691fb | 207 | memset (bp_smob, 0, sizeof (*bp_smob)); |
ed3ef339 | 208 | bp_smob->number = -1; |
ed3ef339 DE |
209 | bp_smob->stop = SCM_BOOL_F; |
210 | bp_scm = scm_new_smob (breakpoint_smob_tag, (scm_t_bits) bp_smob); | |
211 | bp_smob->containing_scm = bp_scm; | |
212 | gdbscm_init_gsmob (&bp_smob->base); | |
213 | ||
214 | return bp_scm; | |
215 | } | |
216 | ||
217 | /* Return non-zero if we want a Scheme wrapper for breakpoint B. | |
218 | If FROM_SCHEME is non-zero,this is called for a breakpoint created | |
219 | by the user from Scheme. Otherwise it is zero. */ | |
220 | ||
221 | static int | |
222 | bpscm_want_scm_wrapper_p (struct breakpoint *bp, int from_scheme) | |
223 | { | |
224 | /* Don't create <gdb:breakpoint> objects for internal GDB breakpoints. */ | |
225 | if (bp->number < 0 && !from_scheme) | |
226 | return 0; | |
227 | ||
228 | /* The others are not supported. */ | |
229 | if (bp->type != bp_breakpoint | |
230 | && bp->type != bp_watchpoint | |
231 | && bp->type != bp_hardware_watchpoint | |
232 | && bp->type != bp_read_watchpoint | |
233 | && bp->type != bp_access_watchpoint) | |
234 | return 0; | |
235 | ||
236 | return 1; | |
237 | } | |
238 | ||
239 | /* Install the Scheme side of a breakpoint, CONTAINING_SCM, in | |
240 | the gdb side BP. */ | |
241 | ||
242 | static void | |
243 | bpscm_attach_scm_to_breakpoint (struct breakpoint *bp, SCM containing_scm) | |
244 | { | |
245 | breakpoint_smob *bp_smob; | |
246 | ||
247 | bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (containing_scm); | |
248 | bp_smob->number = bp->number; | |
249 | bp_smob->bp = bp; | |
250 | bp_smob->containing_scm = containing_scm; | |
251 | bp_smob->bp->scm_bp_object = bp_smob; | |
252 | ||
253 | /* The owner of this breakpoint is not in GC-controlled memory, so we need | |
254 | to protect it from GC until the breakpoint is deleted. */ | |
255 | scm_gc_protect_object (containing_scm); | |
256 | } | |
257 | ||
258 | /* Return non-zero if SCM is a breakpoint smob. */ | |
259 | ||
260 | static int | |
261 | bpscm_is_breakpoint (SCM scm) | |
262 | { | |
263 | return SCM_SMOB_PREDICATE (breakpoint_smob_tag, scm); | |
264 | } | |
265 | ||
266 | /* (breakpoint? scm) -> boolean */ | |
267 | ||
268 | static SCM | |
269 | gdbscm_breakpoint_p (SCM scm) | |
270 | { | |
271 | return scm_from_bool (bpscm_is_breakpoint (scm)); | |
272 | } | |
273 | ||
274 | /* Returns the <gdb:breakpoint> object in SELF. | |
275 | Throws an exception if SELF is not a <gdb:breakpoint> object. */ | |
276 | ||
277 | static SCM | |
278 | bpscm_get_breakpoint_arg_unsafe (SCM self, int arg_pos, const char *func_name) | |
279 | { | |
280 | SCM_ASSERT_TYPE (bpscm_is_breakpoint (self), self, arg_pos, func_name, | |
281 | breakpoint_smob_name); | |
282 | ||
283 | return self; | |
284 | } | |
285 | ||
286 | /* Returns a pointer to the breakpoint smob of SELF. | |
287 | Throws an exception if SELF is not a <gdb:breakpoint> object. */ | |
288 | ||
289 | static breakpoint_smob * | |
290 | bpscm_get_breakpoint_smob_arg_unsafe (SCM self, int arg_pos, | |
291 | const char *func_name) | |
292 | { | |
293 | SCM bp_scm = bpscm_get_breakpoint_arg_unsafe (self, arg_pos, func_name); | |
294 | breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (bp_scm); | |
295 | ||
296 | return bp_smob; | |
297 | } | |
298 | ||
299 | /* Return non-zero if breakpoint BP_SMOB is valid. */ | |
300 | ||
301 | static int | |
302 | bpscm_is_valid (breakpoint_smob *bp_smob) | |
303 | { | |
304 | return bp_smob->bp != NULL; | |
305 | } | |
306 | ||
307 | /* Returns the breakpoint smob in SELF, verifying it's valid. | |
308 | Throws an exception if SELF is not a <gdb:breakpoint> object, | |
309 | or is invalid. */ | |
310 | ||
311 | static breakpoint_smob * | |
312 | bpscm_get_valid_breakpoint_smob_arg_unsafe (SCM self, int arg_pos, | |
313 | const char *func_name) | |
314 | { | |
315 | breakpoint_smob *bp_smob | |
316 | = bpscm_get_breakpoint_smob_arg_unsafe (self, arg_pos, func_name); | |
317 | ||
318 | if (!bpscm_is_valid (bp_smob)) | |
319 | { | |
320 | gdbscm_invalid_object_error (func_name, arg_pos, self, | |
321 | _("<gdb:breakpoint>")); | |
322 | } | |
323 | ||
324 | return bp_smob; | |
325 | } | |
326 | \f | |
327 | /* Breakpoint methods. */ | |
328 | ||
16f691fb DE |
329 | /* (make-breakpoint string [#:type integer] [#:wp-class integer] |
330 | [#:internal boolean) -> <gdb:breakpoint> | |
331 | ||
332 | The result is the <gdb:breakpoint> Scheme object. | |
333 | The breakpoint is not available to be used yet, however. | |
334 | It must still be added to gdb with register-breakpoint!. */ | |
ed3ef339 DE |
335 | |
336 | static SCM | |
16f691fb | 337 | gdbscm_make_breakpoint (SCM location_scm, SCM rest) |
ed3ef339 DE |
338 | { |
339 | const SCM keywords[] = { | |
340 | type_keyword, wp_class_keyword, internal_keyword, SCM_BOOL_F | |
341 | }; | |
16f691fb DE |
342 | char *s; |
343 | char *location; | |
ed3ef339 DE |
344 | int type_arg_pos = -1, access_type_arg_pos = -1, internal_arg_pos = -1; |
345 | int type = bp_breakpoint; | |
346 | int access_type = hw_write; | |
347 | int internal = 0; | |
348 | SCM result; | |
16f691fb | 349 | breakpoint_smob *bp_smob; |
ed3ef339 DE |
350 | |
351 | gdbscm_parse_function_args (FUNC_NAME, SCM_ARG1, keywords, "s#iit", | |
16f691fb | 352 | location_scm, &location, rest, |
ed3ef339 DE |
353 | &type_arg_pos, &type, |
354 | &access_type_arg_pos, &access_type, | |
355 | &internal_arg_pos, &internal); | |
356 | ||
357 | result = bpscm_make_breakpoint_smob (); | |
16f691fb DE |
358 | bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (result); |
359 | ||
360 | s = location; | |
361 | location = gdbscm_gc_xstrdup (s); | |
362 | xfree (s); | |
363 | ||
364 | switch (type) | |
365 | { | |
366 | case bp_breakpoint: | |
367 | if (access_type_arg_pos > 0) | |
368 | { | |
369 | gdbscm_misc_error (FUNC_NAME, access_type_arg_pos, | |
370 | scm_from_int (access_type), | |
371 | _("access type with breakpoint is not allowed")); | |
372 | } | |
373 | break; | |
374 | case bp_watchpoint: | |
375 | switch (access_type) | |
376 | { | |
377 | case hw_write: | |
378 | case hw_access: | |
379 | case hw_read: | |
380 | break; | |
381 | default: | |
382 | gdbscm_out_of_range_error (FUNC_NAME, access_type_arg_pos, | |
383 | scm_from_int (access_type), | |
384 | _("invalid watchpoint class")); | |
385 | } | |
386 | break; | |
387 | default: | |
388 | gdbscm_out_of_range_error (FUNC_NAME, access_type_arg_pos, | |
389 | scm_from_int (type), | |
390 | _("invalid breakpoint type")); | |
391 | } | |
392 | ||
393 | bp_smob->is_scheme_bkpt = 1; | |
394 | bp_smob->spec.location = location; | |
395 | bp_smob->spec.type = type; | |
396 | bp_smob->spec.access_type = access_type; | |
397 | bp_smob->spec.is_internal = internal; | |
398 | ||
399 | return result; | |
400 | } | |
401 | ||
402 | /* (register-breakpoint! <gdb:breakpoint>) -> unspecified | |
403 | ||
404 | It is an error to register a breakpoint created outside of Guile, | |
405 | or an already-registered breakpoint. */ | |
406 | ||
407 | static SCM | |
408 | gdbscm_register_breakpoint_x (SCM self) | |
409 | { | |
410 | breakpoint_smob *bp_smob | |
411 | = bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
412 | volatile struct gdb_exception except; | |
413 | ||
414 | /* We only support registering breakpoints created with make-breakpoint. */ | |
415 | if (!bp_smob->is_scheme_bkpt) | |
416 | scm_misc_error (FUNC_NAME, _("not a Scheme breakpoint"), SCM_EOL); | |
417 | ||
418 | if (bpscm_is_valid (bp_smob)) | |
419 | scm_misc_error (FUNC_NAME, _("breakpoint is already registered"), SCM_EOL); | |
420 | ||
421 | pending_breakpoint_scm = self; | |
ed3ef339 DE |
422 | |
423 | TRY_CATCH (except, RETURN_MASK_ALL) | |
424 | { | |
16f691fb DE |
425 | char *location = bp_smob->spec.location; |
426 | int internal = bp_smob->spec.is_internal; | |
ed3ef339 | 427 | |
16f691fb | 428 | switch (bp_smob->spec.type) |
ed3ef339 DE |
429 | { |
430 | case bp_breakpoint: | |
431 | { | |
432 | create_breakpoint (get_current_arch (), | |
16f691fb | 433 | location, NULL, -1, NULL, |
ed3ef339 DE |
434 | 0, |
435 | 0, bp_breakpoint, | |
436 | 0, | |
437 | AUTO_BOOLEAN_TRUE, | |
438 | &bkpt_breakpoint_ops, | |
439 | 0, 1, internal, 0); | |
440 | break; | |
441 | } | |
442 | case bp_watchpoint: | |
443 | { | |
16f691fb DE |
444 | enum target_hw_bp_type access_type = bp_smob->spec.access_type; |
445 | ||
ed3ef339 | 446 | if (access_type == hw_write) |
16f691fb | 447 | watch_command_wrapper (location, 0, internal); |
ed3ef339 | 448 | else if (access_type == hw_access) |
16f691fb | 449 | awatch_command_wrapper (location, 0, internal); |
ed3ef339 | 450 | else if (access_type == hw_read) |
16f691fb | 451 | rwatch_command_wrapper (location, 0, internal); |
ed3ef339 | 452 | else |
16f691fb | 453 | gdb_assert_not_reached ("invalid access type"); |
ed3ef339 DE |
454 | break; |
455 | } | |
456 | default: | |
16f691fb | 457 | gdb_assert_not_reached ("invalid breakpoint type"); |
ed3ef339 | 458 | } |
ed3ef339 DE |
459 | } |
460 | /* Ensure this gets reset, even if there's an error. */ | |
461 | pending_breakpoint_scm = SCM_BOOL_F; | |
462 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
463 | ||
16f691fb | 464 | return SCM_UNSPECIFIED; |
ed3ef339 DE |
465 | } |
466 | ||
16f691fb DE |
467 | /* (delete-breakpoint! <gdb:breakpoint>) -> unspecified |
468 | Scheme function which deletes (removes) the underlying GDB breakpoint | |
469 | from GDB's list of breakpoints. This triggers the breakpoint_deleted | |
470 | observer which will call gdbscm_breakpoint_deleted; that function cleans | |
471 | up the Scheme bits. */ | |
ed3ef339 DE |
472 | |
473 | static SCM | |
16f691fb | 474 | gdbscm_delete_breakpoint_x (SCM self) |
ed3ef339 DE |
475 | { |
476 | breakpoint_smob *bp_smob | |
477 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
478 | volatile struct gdb_exception except; | |
479 | ||
480 | TRY_CATCH (except, RETURN_MASK_ALL) | |
481 | { | |
482 | delete_breakpoint (bp_smob->bp); | |
483 | } | |
484 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
485 | ||
486 | return SCM_UNSPECIFIED; | |
487 | } | |
488 | ||
489 | /* iterate_over_breakpoints function for gdbscm_breakpoints. */ | |
490 | ||
491 | static int | |
492 | bpscm_build_bp_list (struct breakpoint *bp, void *arg) | |
493 | { | |
494 | SCM *list = arg; | |
495 | breakpoint_smob *bp_smob = bp->scm_bp_object; | |
496 | ||
497 | /* Lazily create wrappers for breakpoints created outside Scheme. */ | |
498 | ||
499 | if (bp_smob == NULL) | |
500 | { | |
501 | if (bpscm_want_scm_wrapper_p (bp, 0)) | |
502 | { | |
503 | SCM bp_scm; | |
504 | ||
505 | bp_scm = bpscm_make_breakpoint_smob (); | |
506 | bpscm_attach_scm_to_breakpoint (bp, bp_scm); | |
507 | /* Refetch it. */ | |
508 | bp_smob = bp->scm_bp_object; | |
509 | } | |
510 | } | |
511 | ||
512 | /* Not all breakpoints will have a companion Scheme object. | |
513 | Only breakpoints that trigger the created_breakpoint observer call, | |
514 | and satisfy certain conditions (see bpscm_want_scm_wrapper_p), | |
515 | get a companion object (this includes Scheme-created breakpoints). */ | |
516 | ||
517 | if (bp_smob != NULL) | |
518 | *list = scm_cons (bp_smob->containing_scm, *list); | |
519 | ||
520 | return 0; | |
521 | } | |
522 | ||
523 | /* (breakpoints) -> list | |
524 | Return a list of all breakpoints. */ | |
525 | ||
526 | static SCM | |
527 | gdbscm_breakpoints (void) | |
528 | { | |
529 | SCM list = SCM_EOL; | |
530 | ||
531 | /* If iterate_over_breakpoints returns non-NULL it means the iteration | |
532 | terminated early. | |
533 | In that case abandon building the list and return #f. */ | |
534 | if (iterate_over_breakpoints (bpscm_build_bp_list, &list) != NULL) | |
535 | return SCM_BOOL_F; | |
536 | ||
537 | return scm_reverse_x (list, SCM_EOL); | |
538 | } | |
539 | ||
540 | /* (breakpoint-valid? <gdb:breakpoint>) -> boolean | |
541 | Returns #t if SELF is still valid. */ | |
542 | ||
543 | static SCM | |
544 | gdbscm_breakpoint_valid_p (SCM self) | |
545 | { | |
546 | breakpoint_smob *bp_smob | |
547 | = bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
548 | ||
549 | return scm_from_bool (bpscm_is_valid (bp_smob)); | |
550 | } | |
551 | ||
552 | /* (breakpoint-enabled? <gdb:breakpoint>) -> boolean */ | |
553 | ||
554 | static SCM | |
555 | gdbscm_breakpoint_enabled_p (SCM self) | |
556 | { | |
557 | breakpoint_smob *bp_smob | |
558 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
559 | ||
560 | return scm_from_bool (bp_smob->bp->enable_state == bp_enabled); | |
561 | } | |
562 | ||
563 | /* (set-breakpoint-enabled? <gdb:breakpoint> boolean) -> unspecified */ | |
564 | ||
565 | static SCM | |
566 | gdbscm_set_breakpoint_enabled_x (SCM self, SCM newvalue) | |
567 | { | |
568 | breakpoint_smob *bp_smob | |
569 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
570 | volatile struct gdb_exception except; | |
571 | ||
572 | SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME, | |
573 | _("boolean")); | |
574 | ||
575 | TRY_CATCH (except, RETURN_MASK_ALL) | |
576 | { | |
577 | if (gdbscm_is_true (newvalue)) | |
578 | enable_breakpoint (bp_smob->bp); | |
579 | else | |
580 | disable_breakpoint (bp_smob->bp); | |
581 | } | |
582 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
583 | ||
584 | return SCM_UNSPECIFIED; | |
585 | } | |
586 | ||
587 | /* (breakpoint-silent? <gdb:breakpoint>) -> boolean */ | |
588 | ||
589 | static SCM | |
590 | gdbscm_breakpoint_silent_p (SCM self) | |
591 | { | |
592 | breakpoint_smob *bp_smob | |
593 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
594 | ||
595 | return scm_from_bool (bp_smob->bp->silent); | |
596 | } | |
597 | ||
598 | /* (set-breakpoint-silent?! <gdb:breakpoint> boolean) -> unspecified */ | |
599 | ||
600 | static SCM | |
601 | gdbscm_set_breakpoint_silent_x (SCM self, SCM newvalue) | |
602 | { | |
603 | breakpoint_smob *bp_smob | |
604 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
605 | volatile struct gdb_exception except; | |
606 | ||
607 | SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME, | |
608 | _("boolean")); | |
609 | ||
610 | TRY_CATCH (except, RETURN_MASK_ALL) | |
611 | { | |
612 | breakpoint_set_silent (bp_smob->bp, gdbscm_is_true (newvalue)); | |
613 | } | |
614 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
615 | ||
616 | return SCM_UNSPECIFIED; | |
617 | } | |
618 | ||
619 | /* (breakpoint-ignore-count <gdb:breakpoint>) -> integer */ | |
620 | ||
621 | static SCM | |
622 | gdbscm_breakpoint_ignore_count (SCM self) | |
623 | { | |
624 | breakpoint_smob *bp_smob | |
625 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
626 | ||
627 | return scm_from_long (bp_smob->bp->ignore_count); | |
628 | } | |
629 | ||
630 | /* (set-breakpoint-ignore-count! <gdb:breakpoint> integer) | |
631 | -> unspecified */ | |
632 | ||
633 | static SCM | |
634 | gdbscm_set_breakpoint_ignore_count_x (SCM self, SCM newvalue) | |
635 | { | |
636 | breakpoint_smob *bp_smob | |
637 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
638 | long value; | |
639 | volatile struct gdb_exception except; | |
640 | ||
641 | SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX), | |
642 | newvalue, SCM_ARG2, FUNC_NAME, _("integer")); | |
643 | ||
644 | value = scm_to_long (newvalue); | |
645 | if (value < 0) | |
646 | value = 0; | |
647 | ||
648 | TRY_CATCH (except, RETURN_MASK_ALL) | |
649 | { | |
650 | set_ignore_count (bp_smob->number, (int) value, 0); | |
651 | } | |
652 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
653 | ||
654 | return SCM_UNSPECIFIED; | |
655 | } | |
656 | ||
657 | /* (breakpoint-hit-count <gdb:breakpoint>) -> integer */ | |
658 | ||
659 | static SCM | |
660 | gdbscm_breakpoint_hit_count (SCM self) | |
661 | { | |
662 | breakpoint_smob *bp_smob | |
663 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
664 | ||
665 | return scm_from_long (bp_smob->bp->hit_count); | |
666 | } | |
667 | ||
668 | /* (set-breakpoint-hit-count! <gdb:breakpoint> integer) -> unspecified */ | |
669 | ||
670 | static SCM | |
671 | gdbscm_set_breakpoint_hit_count_x (SCM self, SCM newvalue) | |
672 | { | |
673 | breakpoint_smob *bp_smob | |
674 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
675 | long value; | |
676 | ||
677 | SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX), | |
678 | newvalue, SCM_ARG2, FUNC_NAME, _("integer")); | |
679 | ||
680 | value = scm_to_long (newvalue); | |
681 | if (value < 0) | |
682 | value = 0; | |
683 | ||
684 | if (value != 0) | |
685 | { | |
686 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
687 | _("hit-count must be zero")); | |
688 | } | |
689 | ||
690 | bp_smob->bp->hit_count = 0; | |
691 | ||
692 | return SCM_UNSPECIFIED; | |
693 | } | |
694 | ||
695 | /* (breakpoint-thread <gdb:breakpoint>) -> integer */ | |
696 | ||
697 | static SCM | |
698 | gdbscm_breakpoint_thread (SCM self) | |
699 | { | |
700 | breakpoint_smob *bp_smob | |
701 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
702 | ||
703 | if (bp_smob->bp->thread == -1) | |
704 | return SCM_BOOL_F; | |
705 | ||
706 | return scm_from_long (bp_smob->bp->thread); | |
707 | } | |
708 | ||
709 | /* (set-breakpoint-thread! <gdb:breakpoint> integer) -> unspecified */ | |
710 | ||
711 | static SCM | |
712 | gdbscm_set_breakpoint_thread_x (SCM self, SCM newvalue) | |
713 | { | |
714 | breakpoint_smob *bp_smob | |
715 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
716 | long id; | |
717 | ||
718 | if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX)) | |
719 | { | |
720 | id = scm_to_long (newvalue); | |
721 | if (! valid_thread_id (id)) | |
722 | { | |
723 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
724 | _("invalid thread id")); | |
725 | } | |
726 | } | |
727 | else if (gdbscm_is_false (newvalue)) | |
728 | id = -1; | |
729 | else | |
730 | SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f")); | |
731 | ||
732 | breakpoint_set_thread (bp_smob->bp, id); | |
733 | ||
734 | return SCM_UNSPECIFIED; | |
735 | } | |
736 | ||
737 | /* (breakpoint-task <gdb:breakpoint>) -> integer */ | |
738 | ||
739 | static SCM | |
740 | gdbscm_breakpoint_task (SCM self) | |
741 | { | |
742 | breakpoint_smob *bp_smob | |
743 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
744 | ||
745 | if (bp_smob->bp->task == 0) | |
746 | return SCM_BOOL_F; | |
747 | ||
748 | return scm_from_long (bp_smob->bp->task); | |
749 | } | |
750 | ||
751 | /* (set-breakpoint-task! <gdb:breakpoint> integer) -> unspecified */ | |
752 | ||
753 | static SCM | |
754 | gdbscm_set_breakpoint_task_x (SCM self, SCM newvalue) | |
755 | { | |
756 | breakpoint_smob *bp_smob | |
757 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
758 | long id; | |
759 | int valid_id = 0; | |
760 | volatile struct gdb_exception except; | |
761 | ||
762 | if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX)) | |
763 | { | |
764 | id = scm_to_long (newvalue); | |
765 | ||
766 | TRY_CATCH (except, RETURN_MASK_ALL) | |
767 | { | |
768 | valid_id = valid_task_id (id); | |
769 | } | |
770 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
771 | ||
772 | if (! valid_id) | |
773 | { | |
774 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
775 | _("invalid task id")); | |
776 | } | |
777 | } | |
778 | else if (gdbscm_is_false (newvalue)) | |
779 | id = 0; | |
780 | else | |
781 | SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f")); | |
782 | ||
783 | TRY_CATCH (except, RETURN_MASK_ALL) | |
784 | { | |
785 | breakpoint_set_task (bp_smob->bp, id); | |
786 | } | |
787 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
788 | ||
789 | return SCM_UNSPECIFIED; | |
790 | } | |
791 | ||
792 | /* (breakpoint-location <gdb:breakpoint>) -> string */ | |
793 | ||
794 | static SCM | |
795 | gdbscm_breakpoint_location (SCM self) | |
796 | { | |
797 | breakpoint_smob *bp_smob | |
798 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
799 | char *str; | |
800 | ||
801 | if (bp_smob->bp->type != bp_breakpoint) | |
802 | return SCM_BOOL_F; | |
803 | ||
804 | str = bp_smob->bp->addr_string; | |
805 | if (! str) | |
806 | str = ""; | |
807 | ||
808 | return gdbscm_scm_from_c_string (str); | |
809 | } | |
810 | ||
811 | /* (breakpoint-expression <gdb:breakpoint>) -> string | |
812 | This is only valid for watchpoints. | |
813 | Returns #f for non-watchpoints. */ | |
814 | ||
815 | static SCM | |
816 | gdbscm_breakpoint_expression (SCM self) | |
817 | { | |
818 | breakpoint_smob *bp_smob | |
819 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
820 | char *str; | |
821 | struct watchpoint *wp; | |
822 | ||
823 | if (!is_watchpoint (bp_smob->bp)) | |
824 | return SCM_BOOL_F; | |
825 | ||
826 | wp = (struct watchpoint *) bp_smob->bp; | |
827 | ||
828 | str = wp->exp_string; | |
829 | if (! str) | |
830 | str = ""; | |
831 | ||
832 | return gdbscm_scm_from_c_string (str); | |
833 | } | |
834 | ||
835 | /* (breakpoint-condition <gdb:breakpoint>) -> string */ | |
836 | ||
837 | static SCM | |
838 | gdbscm_breakpoint_condition (SCM self) | |
839 | { | |
840 | breakpoint_smob *bp_smob | |
841 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
842 | char *str; | |
843 | ||
844 | str = bp_smob->bp->cond_string; | |
845 | if (! str) | |
846 | return SCM_BOOL_F; | |
847 | ||
848 | return gdbscm_scm_from_c_string (str); | |
849 | } | |
850 | ||
851 | /* (set-breakpoint-condition! <gdb:breakpoint> string|#f) | |
852 | -> unspecified */ | |
853 | ||
854 | static SCM | |
855 | gdbscm_set_breakpoint_condition_x (SCM self, SCM newvalue) | |
856 | { | |
857 | breakpoint_smob *bp_smob | |
858 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
859 | char *exp; | |
860 | volatile struct gdb_exception except; | |
861 | ||
862 | SCM_ASSERT_TYPE (scm_is_string (newvalue) || gdbscm_is_false (newvalue), | |
863 | newvalue, SCM_ARG2, FUNC_NAME, | |
864 | _("string or #f")); | |
865 | ||
866 | if (gdbscm_is_false (newvalue)) | |
867 | exp = NULL; | |
868 | else | |
869 | exp = gdbscm_scm_to_c_string (newvalue); | |
870 | ||
871 | TRY_CATCH (except, RETURN_MASK_ALL) | |
872 | { | |
873 | set_breakpoint_condition (bp_smob->bp, exp ? exp : "", 0); | |
874 | } | |
875 | xfree (exp); | |
876 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
877 | ||
878 | return SCM_UNSPECIFIED; | |
879 | } | |
880 | ||
881 | /* (breakpoint-stop <gdb:breakpoint>) -> procedure or #f */ | |
882 | ||
883 | static SCM | |
884 | gdbscm_breakpoint_stop (SCM self) | |
885 | { | |
886 | breakpoint_smob *bp_smob | |
887 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
888 | ||
889 | return bp_smob->stop; | |
890 | } | |
891 | ||
892 | /* (set-breakpoint-stop! <gdb:breakpoint> procedure|#f) | |
893 | -> unspecified */ | |
894 | ||
895 | static SCM | |
896 | gdbscm_set_breakpoint_stop_x (SCM self, SCM newvalue) | |
897 | { | |
898 | breakpoint_smob *bp_smob | |
899 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
900 | const struct extension_language_defn *extlang = NULL; | |
901 | ||
902 | SCM_ASSERT_TYPE (gdbscm_is_procedure (newvalue) | |
903 | || gdbscm_is_false (newvalue), | |
904 | newvalue, SCM_ARG2, FUNC_NAME, | |
905 | _("procedure or #f")); | |
906 | ||
907 | if (bp_smob->bp->cond_string != NULL) | |
908 | extlang = get_ext_lang_defn (EXT_LANG_GDB); | |
909 | if (extlang == NULL) | |
910 | extlang = get_breakpoint_cond_ext_lang (bp_smob->bp, EXT_LANG_GUILE); | |
911 | if (extlang != NULL) | |
912 | { | |
913 | char *error_text | |
914 | = xstrprintf (_("Only one stop condition allowed. There is" | |
915 | " currently a %s stop condition defined for" | |
916 | " this breakpoint."), | |
917 | ext_lang_capitalized_name (extlang)); | |
918 | ||
919 | scm_dynwind_begin (0); | |
920 | gdbscm_dynwind_xfree (error_text); | |
921 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self, error_text); | |
922 | /* The following line, while unnecessary, is present for completeness | |
923 | sake. */ | |
924 | scm_dynwind_end (); | |
925 | } | |
926 | ||
927 | bp_smob->stop = newvalue; | |
928 | ||
929 | return SCM_UNSPECIFIED; | |
930 | } | |
931 | ||
932 | /* (breakpoint-commands <gdb:breakpoint>) -> string */ | |
933 | ||
934 | static SCM | |
935 | gdbscm_breakpoint_commands (SCM self) | |
936 | { | |
937 | breakpoint_smob *bp_smob | |
938 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
939 | struct breakpoint *bp; | |
940 | long length; | |
941 | volatile struct gdb_exception except; | |
942 | struct ui_file *string_file; | |
943 | struct cleanup *chain; | |
944 | SCM result; | |
945 | char *cmdstr; | |
946 | ||
947 | bp = bp_smob->bp; | |
948 | ||
949 | if (bp->commands == NULL) | |
950 | return SCM_BOOL_F; | |
951 | ||
952 | string_file = mem_fileopen (); | |
953 | chain = make_cleanup_ui_file_delete (string_file); | |
954 | ||
955 | ui_out_redirect (current_uiout, string_file); | |
956 | TRY_CATCH (except, RETURN_MASK_ALL) | |
957 | { | |
958 | print_command_lines (current_uiout, breakpoint_commands (bp), 0); | |
959 | } | |
960 | ui_out_redirect (current_uiout, NULL); | |
961 | if (except.reason < 0) | |
962 | { | |
963 | do_cleanups (chain); | |
964 | gdbscm_throw_gdb_exception (except); | |
965 | } | |
966 | ||
967 | cmdstr = ui_file_xstrdup (string_file, &length); | |
968 | make_cleanup (xfree, cmdstr); | |
969 | result = gdbscm_scm_from_c_string (cmdstr); | |
970 | ||
971 | do_cleanups (chain); | |
972 | return result; | |
973 | } | |
974 | ||
975 | /* (breakpoint-type <gdb:breakpoint>) -> integer */ | |
976 | ||
977 | static SCM | |
978 | gdbscm_breakpoint_type (SCM self) | |
979 | { | |
980 | breakpoint_smob *bp_smob | |
981 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
982 | ||
983 | return scm_from_long (bp_smob->bp->type); | |
984 | } | |
985 | ||
986 | /* (breakpoint-visible? <gdb:breakpoint>) -> boolean */ | |
987 | ||
988 | static SCM | |
989 | gdbscm_breakpoint_visible (SCM self) | |
990 | { | |
991 | breakpoint_smob *bp_smob | |
992 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
993 | ||
994 | return scm_from_bool (bp_smob->bp->number >= 0); | |
995 | } | |
996 | ||
997 | /* (breakpoint-number <gdb:breakpoint>) -> integer */ | |
998 | ||
999 | static SCM | |
1000 | gdbscm_breakpoint_number (SCM self) | |
1001 | { | |
1002 | breakpoint_smob *bp_smob | |
1003 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
1004 | ||
1005 | return scm_from_long (bp_smob->number); | |
1006 | } | |
1007 | \f | |
1008 | /* Return TRUE if "stop" has been set for this breakpoint. | |
1009 | ||
1010 | This is the extension_language_ops.breakpoint_has_cond "method". */ | |
1011 | ||
1012 | int | |
1013 | gdbscm_breakpoint_has_cond (const struct extension_language_defn *extlang, | |
1014 | struct breakpoint *b) | |
1015 | { | |
1016 | breakpoint_smob *bp_smob = b->scm_bp_object; | |
1017 | ||
1018 | if (bp_smob == NULL) | |
1019 | return 0; | |
1020 | ||
1021 | return gdbscm_is_procedure (bp_smob->stop); | |
1022 | } | |
1023 | ||
1024 | /* Call the "stop" method in the breakpoint class. | |
1025 | This must only be called if gdbscm_breakpoint_has_cond returns true. | |
1026 | If the stop method returns #t, the inferior will be stopped at the | |
1027 | breakpoint. Otherwise the inferior will be allowed to continue | |
1028 | (assuming other conditions don't indicate "stop"). | |
1029 | ||
1030 | This is the extension_language_ops.breakpoint_cond_says_stop "method". */ | |
1031 | ||
1032 | enum ext_lang_bp_stop | |
1033 | gdbscm_breakpoint_cond_says_stop | |
1034 | (const struct extension_language_defn *extlang, struct breakpoint *b) | |
1035 | { | |
1036 | breakpoint_smob *bp_smob = b->scm_bp_object; | |
1037 | SCM predicate_result; | |
1038 | int stop; | |
1039 | ||
1040 | if (bp_smob == NULL) | |
1041 | return EXT_LANG_BP_STOP_UNSET; | |
1042 | if (!gdbscm_is_procedure (bp_smob->stop)) | |
1043 | return EXT_LANG_BP_STOP_UNSET; | |
1044 | ||
1045 | stop = 1; | |
1046 | ||
1047 | predicate_result | |
1048 | = gdbscm_safe_call_1 (bp_smob->stop, bp_smob->containing_scm, NULL); | |
1049 | ||
1050 | if (gdbscm_is_exception (predicate_result)) | |
1051 | ; /* Exception already printed. */ | |
1052 | /* If the "stop" function returns #f that means | |
1053 | the Scheme breakpoint wants GDB to continue. */ | |
1054 | else if (gdbscm_is_false (predicate_result)) | |
1055 | stop = 0; | |
1056 | ||
1057 | return stop ? EXT_LANG_BP_STOP_YES : EXT_LANG_BP_STOP_NO; | |
1058 | } | |
1059 | \f | |
1060 | /* Event callback functions. */ | |
1061 | ||
1062 | /* Callback that is used when a breakpoint is created. | |
1063 | For breakpoints created by Scheme, i.e., gdbscm_create_breakpoint_x, finish | |
1064 | object creation by connecting the Scheme wrapper to the gdb object. | |
1065 | We ignore breakpoints created from gdb or python here, we create the | |
1066 | Scheme wrapper for those when there's a need to, e.g., | |
1067 | gdbscm_breakpoints. */ | |
1068 | ||
1069 | static void | |
1070 | bpscm_breakpoint_created (struct breakpoint *bp) | |
1071 | { | |
1072 | SCM bp_scm; | |
1073 | ||
1074 | if (gdbscm_is_false (pending_breakpoint_scm)) | |
1075 | return; | |
1076 | ||
1077 | /* Verify our caller error checked the user's request. */ | |
1078 | gdb_assert (bpscm_want_scm_wrapper_p (bp, 1)); | |
1079 | ||
1080 | bp_scm = pending_breakpoint_scm; | |
1081 | pending_breakpoint_scm = SCM_BOOL_F; | |
1082 | ||
1083 | bpscm_attach_scm_to_breakpoint (bp, bp_scm); | |
1084 | } | |
1085 | ||
1086 | /* Callback that is used when a breakpoint is deleted. This will | |
1087 | invalidate the corresponding Scheme object. */ | |
1088 | ||
1089 | static void | |
1090 | bpscm_breakpoint_deleted (struct breakpoint *b) | |
1091 | { | |
1092 | int num = b->number; | |
1093 | struct breakpoint *bp; | |
1094 | ||
1095 | /* TODO: Why the lookup? We have B. */ | |
1096 | ||
1097 | bp = get_breakpoint (num); | |
1098 | if (bp) | |
1099 | { | |
1100 | breakpoint_smob *bp_smob = bp->scm_bp_object; | |
1101 | ||
1102 | if (bp_smob) | |
1103 | { | |
1104 | bp_smob->bp = NULL; | |
16f691fb DE |
1105 | bp_smob->number = -1; |
1106 | bp_smob->stop = SCM_BOOL_F; | |
ed3ef339 DE |
1107 | scm_gc_unprotect_object (bp_smob->containing_scm); |
1108 | } | |
1109 | } | |
1110 | } | |
1111 | \f | |
1112 | /* Initialize the Scheme breakpoint code. */ | |
1113 | ||
1114 | static const scheme_integer_constant breakpoint_integer_constants[] = | |
1115 | { | |
1116 | { "BP_NONE", bp_none }, | |
1117 | { "BP_BREAKPOINT", bp_breakpoint }, | |
1118 | { "BP_WATCHPOINT", bp_watchpoint }, | |
1119 | { "BP_HARDWARE_WATCHPOINT", bp_hardware_watchpoint }, | |
1120 | { "BP_READ_WATCHPOINT", bp_read_watchpoint }, | |
1121 | { "BP_ACCESS_WATCHPOINT", bp_access_watchpoint }, | |
1122 | ||
1123 | { "WP_READ", hw_read }, | |
1124 | { "WP_WRITE", hw_write }, | |
1125 | { "WP_ACCESS", hw_access }, | |
1126 | ||
1127 | END_INTEGER_CONSTANTS | |
1128 | }; | |
1129 | ||
1130 | static const scheme_function breakpoint_functions[] = | |
1131 | { | |
16f691fb | 1132 | { "make-breakpoint", 1, 0, 1, gdbscm_make_breakpoint, |
ed3ef339 | 1133 | "\ |
16f691fb | 1134 | Create a GDB breakpoint object.\n\ |
ed3ef339 DE |
1135 | \n\ |
1136 | Arguments:\n\ | |
16f691fb DE |
1137 | location [#:type <type>] [#:wp-class <wp-class>] [#:internal <bool>]\n\ |
1138 | Returns:\n\ | |
1139 | <gdb:breakpoint object" }, | |
1140 | ||
1141 | { "register-breakpoint!", 1, 0, 0, gdbscm_register_breakpoint_x, | |
1142 | "\ | |
1143 | Register a <gdb:breakpoint> object with GDB." }, | |
ed3ef339 | 1144 | |
16f691fb | 1145 | { "delete-breakpoint!", 1, 0, 0, gdbscm_delete_breakpoint_x, |
ed3ef339 DE |
1146 | "\ |
1147 | Delete the breakpoint from GDB." }, | |
1148 | ||
1149 | { "breakpoints", 0, 0, 0, gdbscm_breakpoints, | |
1150 | "\ | |
1151 | Return a list of all GDB breakpoints.\n\ | |
1152 | \n\ | |
1153 | Arguments: none" }, | |
1154 | ||
1155 | { "breakpoint?", 1, 0, 0, gdbscm_breakpoint_p, | |
1156 | "\ | |
1157 | Return #t if the object is a <gdb:breakpoint> object." }, | |
1158 | ||
1159 | { "breakpoint-valid?", 1, 0, 0, gdbscm_breakpoint_valid_p, | |
1160 | "\ | |
1161 | Return #t if the breakpoint has not been deleted from GDB." }, | |
1162 | ||
1163 | { "breakpoint-number", 1, 0, 0, gdbscm_breakpoint_number, | |
1164 | "\ | |
1165 | Return the breakpoint's number." }, | |
1166 | ||
1167 | { "breakpoint-type", 1, 0, 0, gdbscm_breakpoint_type, | |
1168 | "\ | |
1169 | Return the type of the breakpoint." }, | |
1170 | ||
1171 | { "breakpoint-visible?", 1, 0, 0, gdbscm_breakpoint_visible, | |
1172 | "\ | |
1173 | Return #t if the breakpoint is visible to the user." }, | |
1174 | ||
1175 | { "breakpoint-location", 1, 0, 0, gdbscm_breakpoint_location, | |
1176 | "\ | |
1177 | Return the location of the breakpoint as specified by the user." }, | |
1178 | ||
1179 | { "breakpoint-expression", 1, 0, 0, gdbscm_breakpoint_expression, | |
1180 | "\ | |
1181 | Return the expression of the breakpoint as specified by the user.\n\ | |
1182 | Valid for watchpoints only, returns #f for non-watchpoints." }, | |
1183 | ||
1184 | { "breakpoint-enabled?", 1, 0, 0, gdbscm_breakpoint_enabled_p, | |
1185 | "\ | |
1186 | Return #t if the breakpoint is enabled." }, | |
1187 | ||
1188 | { "set-breakpoint-enabled!", 2, 0, 0, gdbscm_set_breakpoint_enabled_x, | |
1189 | "\ | |
1190 | Set the breakpoint's enabled state.\n\ | |
1191 | \n\ | |
5c6d4fb2 | 1192 | Arguments: <gdb:breakpoint> boolean" }, |
ed3ef339 DE |
1193 | |
1194 | { "breakpoint-silent?", 1, 0, 0, gdbscm_breakpoint_silent_p, | |
1195 | "\ | |
1196 | Return #t if the breakpoint is silent." }, | |
1197 | ||
1198 | { "set-breakpoint-silent!", 2, 0, 0, gdbscm_set_breakpoint_silent_x, | |
1199 | "\ | |
1200 | Set the breakpoint's silent state.\n\ | |
1201 | \n\ | |
1202 | Arguments: <gdb:breakpoint> boolean" }, | |
1203 | ||
1204 | { "breakpoint-ignore-count", 1, 0, 0, gdbscm_breakpoint_ignore_count, | |
1205 | "\ | |
1206 | Return the breakpoint's \"ignore\" count." }, | |
1207 | ||
1208 | { "set-breakpoint-ignore-count!", 2, 0, 0, | |
1209 | gdbscm_set_breakpoint_ignore_count_x, | |
1210 | "\ | |
1211 | Set the breakpoint's \"ignore\" count.\n\ | |
1212 | \n\ | |
1213 | Arguments: <gdb:breakpoint> count" }, | |
1214 | ||
1215 | { "breakpoint-hit-count", 1, 0, 0, gdbscm_breakpoint_hit_count, | |
1216 | "\ | |
1217 | Return the breakpoint's \"hit\" count." }, | |
1218 | ||
1219 | { "set-breakpoint-hit-count!", 2, 0, 0, gdbscm_set_breakpoint_hit_count_x, | |
1220 | "\ | |
1221 | Set the breakpoint's \"hit\" count. The value must be zero.\n\ | |
1222 | \n\ | |
1223 | Arguments: <gdb:breakpoint> 0" }, | |
1224 | ||
1225 | { "breakpoint-thread", 1, 0, 0, gdbscm_breakpoint_thread, | |
1226 | "\ | |
1227 | Return the breakpoint's thread id or #f if there isn't one." }, | |
1228 | ||
1229 | { "set-breakpoint-thread!", 2, 0, 0, gdbscm_set_breakpoint_thread_x, | |
1230 | "\ | |
1231 | Set the thread id for this breakpoint.\n\ | |
1232 | \n\ | |
1233 | Arguments: <gdb:breakpoint> thread-id" }, | |
1234 | ||
1235 | { "breakpoint-task", 1, 0, 0, gdbscm_breakpoint_task, | |
1236 | "\ | |
1237 | Return the breakpoint's Ada task-id or #f if there isn't one." }, | |
1238 | ||
1239 | { "set-breakpoint-task!", 2, 0, 0, gdbscm_set_breakpoint_task_x, | |
1240 | "\ | |
1241 | Set the breakpoint's Ada task-id.\n\ | |
1242 | \n\ | |
1243 | Arguments: <gdb:breakpoint> task-id" }, | |
1244 | ||
1245 | { "breakpoint-condition", 1, 0, 0, gdbscm_breakpoint_condition, | |
1246 | "\ | |
1247 | Return the breakpoint's condition as specified by the user.\n\ | |
1248 | Return #f if there isn't one." }, | |
1249 | ||
1250 | { "set-breakpoint-condition!", 2, 0, 0, gdbscm_set_breakpoint_condition_x, | |
1251 | "\ | |
1252 | Set the breakpoint's condition.\n\ | |
1253 | \n\ | |
1254 | Arguments: <gdb:breakpoint> condition\n\ | |
1255 | condition: a string" }, | |
1256 | ||
1257 | { "breakpoint-stop", 1, 0, 0, gdbscm_breakpoint_stop, | |
1258 | "\ | |
1259 | Return the breakpoint's stop predicate.\n\ | |
1260 | Return #f if there isn't one." }, | |
1261 | ||
1262 | { "set-breakpoint-stop!", 2, 0, 0, gdbscm_set_breakpoint_stop_x, | |
1263 | "\ | |
1264 | Set the breakpoint's stop predicate.\n\ | |
1265 | \n\ | |
1266 | Arguments: <gdb:breakpoint> procedure\n\ | |
1267 | procedure: A procedure of one argument, the breakpoint.\n\ | |
1268 | Its result is true if program execution should stop." }, | |
1269 | ||
1270 | { "breakpoint-commands", 1, 0, 0, gdbscm_breakpoint_commands, | |
1271 | "\ | |
1272 | Return the breakpoint's commands." }, | |
1273 | ||
1274 | END_FUNCTIONS | |
1275 | }; | |
1276 | ||
1277 | void | |
1278 | gdbscm_initialize_breakpoints (void) | |
1279 | { | |
1280 | breakpoint_smob_tag | |
1281 | = gdbscm_make_smob_type (breakpoint_smob_name, sizeof (breakpoint_smob)); | |
ed3ef339 DE |
1282 | scm_set_smob_free (breakpoint_smob_tag, bpscm_free_breakpoint_smob); |
1283 | scm_set_smob_print (breakpoint_smob_tag, bpscm_print_breakpoint_smob); | |
1284 | ||
1285 | observer_attach_breakpoint_created (bpscm_breakpoint_created); | |
1286 | observer_attach_breakpoint_deleted (bpscm_breakpoint_deleted); | |
1287 | ||
1288 | gdbscm_define_integer_constants (breakpoint_integer_constants, 1); | |
1289 | gdbscm_define_functions (breakpoint_functions, 1); | |
1290 | ||
1291 | type_keyword = scm_from_latin1_keyword ("type"); | |
1292 | wp_class_keyword = scm_from_latin1_keyword ("wp-class"); | |
1293 | internal_keyword = scm_from_latin1_keyword ("internal"); | |
1294 | } |