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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" | |
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); | |
410 | volatile struct gdb_exception except; | |
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 DE |
420 | |
421 | TRY_CATCH (except, RETURN_MASK_ALL) | |
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 DE |
457 | } |
458 | /* Ensure this gets reset, even if there's an error. */ | |
459 | pending_breakpoint_scm = SCM_BOOL_F; | |
460 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
461 | ||
16f691fb | 462 | return SCM_UNSPECIFIED; |
ed3ef339 DE |
463 | } |
464 | ||
16f691fb DE |
465 | /* (delete-breakpoint! <gdb:breakpoint>) -> unspecified |
466 | Scheme function which deletes (removes) the underlying GDB breakpoint | |
467 | from GDB's list of breakpoints. This triggers the breakpoint_deleted | |
468 | observer which will call gdbscm_breakpoint_deleted; that function cleans | |
469 | up the Scheme bits. */ | |
ed3ef339 DE |
470 | |
471 | static SCM | |
16f691fb | 472 | gdbscm_delete_breakpoint_x (SCM self) |
ed3ef339 DE |
473 | { |
474 | breakpoint_smob *bp_smob | |
475 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
476 | volatile struct gdb_exception except; | |
477 | ||
478 | TRY_CATCH (except, RETURN_MASK_ALL) | |
479 | { | |
480 | delete_breakpoint (bp_smob->bp); | |
481 | } | |
482 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
483 | ||
484 | return SCM_UNSPECIFIED; | |
485 | } | |
486 | ||
487 | /* iterate_over_breakpoints function for gdbscm_breakpoints. */ | |
488 | ||
489 | static int | |
490 | bpscm_build_bp_list (struct breakpoint *bp, void *arg) | |
491 | { | |
492 | SCM *list = arg; | |
493 | breakpoint_smob *bp_smob = bp->scm_bp_object; | |
494 | ||
495 | /* Lazily create wrappers for breakpoints created outside Scheme. */ | |
496 | ||
497 | if (bp_smob == NULL) | |
498 | { | |
499 | if (bpscm_want_scm_wrapper_p (bp, 0)) | |
500 | { | |
501 | SCM bp_scm; | |
502 | ||
503 | bp_scm = bpscm_make_breakpoint_smob (); | |
504 | bpscm_attach_scm_to_breakpoint (bp, bp_scm); | |
505 | /* Refetch it. */ | |
506 | bp_smob = bp->scm_bp_object; | |
507 | } | |
508 | } | |
509 | ||
510 | /* Not all breakpoints will have a companion Scheme object. | |
511 | Only breakpoints that trigger the created_breakpoint observer call, | |
512 | and satisfy certain conditions (see bpscm_want_scm_wrapper_p), | |
513 | get a companion object (this includes Scheme-created breakpoints). */ | |
514 | ||
515 | if (bp_smob != NULL) | |
516 | *list = scm_cons (bp_smob->containing_scm, *list); | |
517 | ||
518 | return 0; | |
519 | } | |
520 | ||
521 | /* (breakpoints) -> list | |
522 | Return a list of all breakpoints. */ | |
523 | ||
524 | static SCM | |
525 | gdbscm_breakpoints (void) | |
526 | { | |
527 | SCM list = SCM_EOL; | |
528 | ||
529 | /* If iterate_over_breakpoints returns non-NULL it means the iteration | |
530 | terminated early. | |
531 | In that case abandon building the list and return #f. */ | |
532 | if (iterate_over_breakpoints (bpscm_build_bp_list, &list) != NULL) | |
533 | return SCM_BOOL_F; | |
534 | ||
535 | return scm_reverse_x (list, SCM_EOL); | |
536 | } | |
537 | ||
538 | /* (breakpoint-valid? <gdb:breakpoint>) -> boolean | |
539 | Returns #t if SELF is still valid. */ | |
540 | ||
541 | static SCM | |
542 | gdbscm_breakpoint_valid_p (SCM self) | |
543 | { | |
544 | breakpoint_smob *bp_smob | |
545 | = bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
546 | ||
547 | return scm_from_bool (bpscm_is_valid (bp_smob)); | |
548 | } | |
549 | ||
550 | /* (breakpoint-enabled? <gdb:breakpoint>) -> boolean */ | |
551 | ||
552 | static SCM | |
553 | gdbscm_breakpoint_enabled_p (SCM self) | |
554 | { | |
555 | breakpoint_smob *bp_smob | |
556 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
557 | ||
558 | return scm_from_bool (bp_smob->bp->enable_state == bp_enabled); | |
559 | } | |
560 | ||
561 | /* (set-breakpoint-enabled? <gdb:breakpoint> boolean) -> unspecified */ | |
562 | ||
563 | static SCM | |
564 | gdbscm_set_breakpoint_enabled_x (SCM self, SCM newvalue) | |
565 | { | |
566 | breakpoint_smob *bp_smob | |
567 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
568 | volatile struct gdb_exception except; | |
569 | ||
570 | SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME, | |
571 | _("boolean")); | |
572 | ||
573 | TRY_CATCH (except, RETURN_MASK_ALL) | |
574 | { | |
575 | if (gdbscm_is_true (newvalue)) | |
576 | enable_breakpoint (bp_smob->bp); | |
577 | else | |
578 | disable_breakpoint (bp_smob->bp); | |
579 | } | |
580 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
581 | ||
582 | return SCM_UNSPECIFIED; | |
583 | } | |
584 | ||
585 | /* (breakpoint-silent? <gdb:breakpoint>) -> boolean */ | |
586 | ||
587 | static SCM | |
588 | gdbscm_breakpoint_silent_p (SCM self) | |
589 | { | |
590 | breakpoint_smob *bp_smob | |
591 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
592 | ||
593 | return scm_from_bool (bp_smob->bp->silent); | |
594 | } | |
595 | ||
596 | /* (set-breakpoint-silent?! <gdb:breakpoint> boolean) -> unspecified */ | |
597 | ||
598 | static SCM | |
599 | gdbscm_set_breakpoint_silent_x (SCM self, SCM newvalue) | |
600 | { | |
601 | breakpoint_smob *bp_smob | |
602 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
603 | volatile struct gdb_exception except; | |
604 | ||
605 | SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME, | |
606 | _("boolean")); | |
607 | ||
608 | TRY_CATCH (except, RETURN_MASK_ALL) | |
609 | { | |
610 | breakpoint_set_silent (bp_smob->bp, gdbscm_is_true (newvalue)); | |
611 | } | |
612 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
613 | ||
614 | return SCM_UNSPECIFIED; | |
615 | } | |
616 | ||
617 | /* (breakpoint-ignore-count <gdb:breakpoint>) -> integer */ | |
618 | ||
619 | static SCM | |
620 | gdbscm_breakpoint_ignore_count (SCM self) | |
621 | { | |
622 | breakpoint_smob *bp_smob | |
623 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
624 | ||
625 | return scm_from_long (bp_smob->bp->ignore_count); | |
626 | } | |
627 | ||
628 | /* (set-breakpoint-ignore-count! <gdb:breakpoint> integer) | |
629 | -> unspecified */ | |
630 | ||
631 | static SCM | |
632 | gdbscm_set_breakpoint_ignore_count_x (SCM self, SCM newvalue) | |
633 | { | |
634 | breakpoint_smob *bp_smob | |
635 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
636 | long value; | |
637 | volatile struct gdb_exception except; | |
638 | ||
639 | SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX), | |
640 | newvalue, SCM_ARG2, FUNC_NAME, _("integer")); | |
641 | ||
642 | value = scm_to_long (newvalue); | |
643 | if (value < 0) | |
644 | value = 0; | |
645 | ||
646 | TRY_CATCH (except, RETURN_MASK_ALL) | |
647 | { | |
648 | set_ignore_count (bp_smob->number, (int) value, 0); | |
649 | } | |
650 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
651 | ||
652 | return SCM_UNSPECIFIED; | |
653 | } | |
654 | ||
655 | /* (breakpoint-hit-count <gdb:breakpoint>) -> integer */ | |
656 | ||
657 | static SCM | |
658 | gdbscm_breakpoint_hit_count (SCM self) | |
659 | { | |
660 | breakpoint_smob *bp_smob | |
661 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
662 | ||
663 | return scm_from_long (bp_smob->bp->hit_count); | |
664 | } | |
665 | ||
666 | /* (set-breakpoint-hit-count! <gdb:breakpoint> integer) -> unspecified */ | |
667 | ||
668 | static SCM | |
669 | gdbscm_set_breakpoint_hit_count_x (SCM self, SCM newvalue) | |
670 | { | |
671 | breakpoint_smob *bp_smob | |
672 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
673 | long value; | |
674 | ||
675 | SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX), | |
676 | newvalue, SCM_ARG2, FUNC_NAME, _("integer")); | |
677 | ||
678 | value = scm_to_long (newvalue); | |
679 | if (value < 0) | |
680 | value = 0; | |
681 | ||
682 | if (value != 0) | |
683 | { | |
684 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
685 | _("hit-count must be zero")); | |
686 | } | |
687 | ||
688 | bp_smob->bp->hit_count = 0; | |
689 | ||
690 | return SCM_UNSPECIFIED; | |
691 | } | |
692 | ||
693 | /* (breakpoint-thread <gdb:breakpoint>) -> integer */ | |
694 | ||
695 | static SCM | |
696 | gdbscm_breakpoint_thread (SCM self) | |
697 | { | |
698 | breakpoint_smob *bp_smob | |
699 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
700 | ||
701 | if (bp_smob->bp->thread == -1) | |
702 | return SCM_BOOL_F; | |
703 | ||
704 | return scm_from_long (bp_smob->bp->thread); | |
705 | } | |
706 | ||
707 | /* (set-breakpoint-thread! <gdb:breakpoint> integer) -> unspecified */ | |
708 | ||
709 | static SCM | |
710 | gdbscm_set_breakpoint_thread_x (SCM self, SCM newvalue) | |
711 | { | |
712 | breakpoint_smob *bp_smob | |
713 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
714 | long id; | |
715 | ||
716 | if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX)) | |
717 | { | |
718 | id = scm_to_long (newvalue); | |
719 | if (! valid_thread_id (id)) | |
720 | { | |
721 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
722 | _("invalid thread id")); | |
723 | } | |
724 | } | |
725 | else if (gdbscm_is_false (newvalue)) | |
726 | id = -1; | |
727 | else | |
728 | SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f")); | |
729 | ||
730 | breakpoint_set_thread (bp_smob->bp, id); | |
731 | ||
732 | return SCM_UNSPECIFIED; | |
733 | } | |
734 | ||
735 | /* (breakpoint-task <gdb:breakpoint>) -> integer */ | |
736 | ||
737 | static SCM | |
738 | gdbscm_breakpoint_task (SCM self) | |
739 | { | |
740 | breakpoint_smob *bp_smob | |
741 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
742 | ||
743 | if (bp_smob->bp->task == 0) | |
744 | return SCM_BOOL_F; | |
745 | ||
746 | return scm_from_long (bp_smob->bp->task); | |
747 | } | |
748 | ||
749 | /* (set-breakpoint-task! <gdb:breakpoint> integer) -> unspecified */ | |
750 | ||
751 | static SCM | |
752 | gdbscm_set_breakpoint_task_x (SCM self, SCM newvalue) | |
753 | { | |
754 | breakpoint_smob *bp_smob | |
755 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
756 | long id; | |
757 | int valid_id = 0; | |
758 | volatile struct gdb_exception except; | |
759 | ||
760 | if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX)) | |
761 | { | |
762 | id = scm_to_long (newvalue); | |
763 | ||
764 | TRY_CATCH (except, RETURN_MASK_ALL) | |
765 | { | |
766 | valid_id = valid_task_id (id); | |
767 | } | |
768 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
769 | ||
770 | if (! valid_id) | |
771 | { | |
772 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
773 | _("invalid task id")); | |
774 | } | |
775 | } | |
776 | else if (gdbscm_is_false (newvalue)) | |
777 | id = 0; | |
778 | else | |
779 | SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f")); | |
780 | ||
781 | TRY_CATCH (except, RETURN_MASK_ALL) | |
782 | { | |
783 | breakpoint_set_task (bp_smob->bp, id); | |
784 | } | |
785 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
786 | ||
787 | return SCM_UNSPECIFIED; | |
788 | } | |
789 | ||
790 | /* (breakpoint-location <gdb:breakpoint>) -> string */ | |
791 | ||
792 | static SCM | |
793 | gdbscm_breakpoint_location (SCM self) | |
794 | { | |
795 | breakpoint_smob *bp_smob | |
796 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
797 | char *str; | |
798 | ||
799 | if (bp_smob->bp->type != bp_breakpoint) | |
800 | return SCM_BOOL_F; | |
801 | ||
802 | str = bp_smob->bp->addr_string; | |
803 | if (! str) | |
804 | str = ""; | |
805 | ||
806 | return gdbscm_scm_from_c_string (str); | |
807 | } | |
808 | ||
809 | /* (breakpoint-expression <gdb:breakpoint>) -> string | |
810 | This is only valid for watchpoints. | |
811 | Returns #f for non-watchpoints. */ | |
812 | ||
813 | static SCM | |
814 | gdbscm_breakpoint_expression (SCM self) | |
815 | { | |
816 | breakpoint_smob *bp_smob | |
817 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
818 | char *str; | |
819 | struct watchpoint *wp; | |
820 | ||
821 | if (!is_watchpoint (bp_smob->bp)) | |
822 | return SCM_BOOL_F; | |
823 | ||
824 | wp = (struct watchpoint *) bp_smob->bp; | |
825 | ||
826 | str = wp->exp_string; | |
827 | if (! str) | |
828 | str = ""; | |
829 | ||
830 | return gdbscm_scm_from_c_string (str); | |
831 | } | |
832 | ||
833 | /* (breakpoint-condition <gdb:breakpoint>) -> string */ | |
834 | ||
835 | static SCM | |
836 | gdbscm_breakpoint_condition (SCM self) | |
837 | { | |
838 | breakpoint_smob *bp_smob | |
839 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
840 | char *str; | |
841 | ||
842 | str = bp_smob->bp->cond_string; | |
843 | if (! str) | |
844 | return SCM_BOOL_F; | |
845 | ||
846 | return gdbscm_scm_from_c_string (str); | |
847 | } | |
848 | ||
849 | /* (set-breakpoint-condition! <gdb:breakpoint> string|#f) | |
850 | -> unspecified */ | |
851 | ||
852 | static SCM | |
853 | gdbscm_set_breakpoint_condition_x (SCM self, SCM newvalue) | |
854 | { | |
855 | breakpoint_smob *bp_smob | |
856 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
857 | char *exp; | |
858 | volatile struct gdb_exception except; | |
859 | ||
860 | SCM_ASSERT_TYPE (scm_is_string (newvalue) || gdbscm_is_false (newvalue), | |
861 | newvalue, SCM_ARG2, FUNC_NAME, | |
862 | _("string or #f")); | |
863 | ||
864 | if (gdbscm_is_false (newvalue)) | |
865 | exp = NULL; | |
866 | else | |
867 | exp = gdbscm_scm_to_c_string (newvalue); | |
868 | ||
869 | TRY_CATCH (except, RETURN_MASK_ALL) | |
870 | { | |
871 | set_breakpoint_condition (bp_smob->bp, exp ? exp : "", 0); | |
872 | } | |
873 | xfree (exp); | |
874 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
875 | ||
876 | return SCM_UNSPECIFIED; | |
877 | } | |
878 | ||
879 | /* (breakpoint-stop <gdb:breakpoint>) -> procedure or #f */ | |
880 | ||
881 | static SCM | |
882 | gdbscm_breakpoint_stop (SCM self) | |
883 | { | |
884 | breakpoint_smob *bp_smob | |
885 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
886 | ||
887 | return bp_smob->stop; | |
888 | } | |
889 | ||
890 | /* (set-breakpoint-stop! <gdb:breakpoint> procedure|#f) | |
891 | -> unspecified */ | |
892 | ||
893 | static SCM | |
894 | gdbscm_set_breakpoint_stop_x (SCM self, SCM newvalue) | |
895 | { | |
896 | breakpoint_smob *bp_smob | |
897 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
898 | const struct extension_language_defn *extlang = NULL; | |
899 | ||
900 | SCM_ASSERT_TYPE (gdbscm_is_procedure (newvalue) | |
901 | || gdbscm_is_false (newvalue), | |
902 | newvalue, SCM_ARG2, FUNC_NAME, | |
903 | _("procedure or #f")); | |
904 | ||
905 | if (bp_smob->bp->cond_string != NULL) | |
906 | extlang = get_ext_lang_defn (EXT_LANG_GDB); | |
907 | if (extlang == NULL) | |
908 | extlang = get_breakpoint_cond_ext_lang (bp_smob->bp, EXT_LANG_GUILE); | |
909 | if (extlang != NULL) | |
910 | { | |
911 | char *error_text | |
912 | = xstrprintf (_("Only one stop condition allowed. There is" | |
913 | " currently a %s stop condition defined for" | |
914 | " this breakpoint."), | |
915 | ext_lang_capitalized_name (extlang)); | |
916 | ||
917 | scm_dynwind_begin (0); | |
918 | gdbscm_dynwind_xfree (error_text); | |
919 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self, error_text); | |
920 | /* The following line, while unnecessary, is present for completeness | |
921 | sake. */ | |
922 | scm_dynwind_end (); | |
923 | } | |
924 | ||
925 | bp_smob->stop = newvalue; | |
926 | ||
927 | return SCM_UNSPECIFIED; | |
928 | } | |
929 | ||
930 | /* (breakpoint-commands <gdb:breakpoint>) -> string */ | |
931 | ||
932 | static SCM | |
933 | gdbscm_breakpoint_commands (SCM self) | |
934 | { | |
935 | breakpoint_smob *bp_smob | |
936 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
937 | struct breakpoint *bp; | |
938 | long length; | |
939 | volatile struct gdb_exception except; | |
940 | struct ui_file *string_file; | |
941 | struct cleanup *chain; | |
942 | SCM result; | |
943 | char *cmdstr; | |
944 | ||
945 | bp = bp_smob->bp; | |
946 | ||
947 | if (bp->commands == NULL) | |
948 | return SCM_BOOL_F; | |
949 | ||
950 | string_file = mem_fileopen (); | |
951 | chain = make_cleanup_ui_file_delete (string_file); | |
952 | ||
953 | ui_out_redirect (current_uiout, string_file); | |
954 | TRY_CATCH (except, RETURN_MASK_ALL) | |
955 | { | |
956 | print_command_lines (current_uiout, breakpoint_commands (bp), 0); | |
957 | } | |
958 | ui_out_redirect (current_uiout, NULL); | |
959 | if (except.reason < 0) | |
960 | { | |
961 | do_cleanups (chain); | |
962 | gdbscm_throw_gdb_exception (except); | |
963 | } | |
964 | ||
965 | cmdstr = ui_file_xstrdup (string_file, &length); | |
966 | make_cleanup (xfree, cmdstr); | |
967 | result = gdbscm_scm_from_c_string (cmdstr); | |
968 | ||
969 | do_cleanups (chain); | |
970 | return result; | |
971 | } | |
972 | ||
973 | /* (breakpoint-type <gdb:breakpoint>) -> integer */ | |
974 | ||
975 | static SCM | |
976 | gdbscm_breakpoint_type (SCM self) | |
977 | { | |
978 | breakpoint_smob *bp_smob | |
979 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
980 | ||
981 | return scm_from_long (bp_smob->bp->type); | |
982 | } | |
983 | ||
984 | /* (breakpoint-visible? <gdb:breakpoint>) -> boolean */ | |
985 | ||
986 | static SCM | |
987 | gdbscm_breakpoint_visible (SCM self) | |
988 | { | |
989 | breakpoint_smob *bp_smob | |
990 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
991 | ||
992 | return scm_from_bool (bp_smob->bp->number >= 0); | |
993 | } | |
994 | ||
995 | /* (breakpoint-number <gdb:breakpoint>) -> integer */ | |
996 | ||
997 | static SCM | |
998 | gdbscm_breakpoint_number (SCM self) | |
999 | { | |
1000 | breakpoint_smob *bp_smob | |
1001 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
1002 | ||
1003 | return scm_from_long (bp_smob->number); | |
1004 | } | |
1005 | \f | |
1006 | /* Return TRUE if "stop" has been set for this breakpoint. | |
1007 | ||
1008 | This is the extension_language_ops.breakpoint_has_cond "method". */ | |
1009 | ||
1010 | int | |
1011 | gdbscm_breakpoint_has_cond (const struct extension_language_defn *extlang, | |
1012 | struct breakpoint *b) | |
1013 | { | |
1014 | breakpoint_smob *bp_smob = b->scm_bp_object; | |
1015 | ||
1016 | if (bp_smob == NULL) | |
1017 | return 0; | |
1018 | ||
1019 | return gdbscm_is_procedure (bp_smob->stop); | |
1020 | } | |
1021 | ||
1022 | /* Call the "stop" method in the breakpoint class. | |
1023 | This must only be called if gdbscm_breakpoint_has_cond returns true. | |
1024 | If the stop method returns #t, the inferior will be stopped at the | |
1025 | breakpoint. Otherwise the inferior will be allowed to continue | |
1026 | (assuming other conditions don't indicate "stop"). | |
1027 | ||
1028 | This is the extension_language_ops.breakpoint_cond_says_stop "method". */ | |
1029 | ||
1030 | enum ext_lang_bp_stop | |
1031 | gdbscm_breakpoint_cond_says_stop | |
1032 | (const struct extension_language_defn *extlang, struct breakpoint *b) | |
1033 | { | |
1034 | breakpoint_smob *bp_smob = b->scm_bp_object; | |
1035 | SCM predicate_result; | |
1036 | int stop; | |
1037 | ||
1038 | if (bp_smob == NULL) | |
1039 | return EXT_LANG_BP_STOP_UNSET; | |
1040 | if (!gdbscm_is_procedure (bp_smob->stop)) | |
1041 | return EXT_LANG_BP_STOP_UNSET; | |
1042 | ||
1043 | stop = 1; | |
1044 | ||
1045 | predicate_result | |
1046 | = gdbscm_safe_call_1 (bp_smob->stop, bp_smob->containing_scm, NULL); | |
1047 | ||
1048 | if (gdbscm_is_exception (predicate_result)) | |
1049 | ; /* Exception already printed. */ | |
1050 | /* If the "stop" function returns #f that means | |
1051 | the Scheme breakpoint wants GDB to continue. */ | |
1052 | else if (gdbscm_is_false (predicate_result)) | |
1053 | stop = 0; | |
1054 | ||
1055 | return stop ? EXT_LANG_BP_STOP_YES : EXT_LANG_BP_STOP_NO; | |
1056 | } | |
1057 | \f | |
1058 | /* Event callback functions. */ | |
1059 | ||
1060 | /* Callback that is used when a breakpoint is created. | |
1061 | For breakpoints created by Scheme, i.e., gdbscm_create_breakpoint_x, finish | |
1062 | object creation by connecting the Scheme wrapper to the gdb object. | |
1063 | We ignore breakpoints created from gdb or python here, we create the | |
1064 | Scheme wrapper for those when there's a need to, e.g., | |
1065 | gdbscm_breakpoints. */ | |
1066 | ||
1067 | static void | |
1068 | bpscm_breakpoint_created (struct breakpoint *bp) | |
1069 | { | |
1070 | SCM bp_scm; | |
1071 | ||
1072 | if (gdbscm_is_false (pending_breakpoint_scm)) | |
1073 | return; | |
1074 | ||
1075 | /* Verify our caller error checked the user's request. */ | |
1076 | gdb_assert (bpscm_want_scm_wrapper_p (bp, 1)); | |
1077 | ||
1078 | bp_scm = pending_breakpoint_scm; | |
1079 | pending_breakpoint_scm = SCM_BOOL_F; | |
1080 | ||
1081 | bpscm_attach_scm_to_breakpoint (bp, bp_scm); | |
1082 | } | |
1083 | ||
1084 | /* Callback that is used when a breakpoint is deleted. This will | |
1085 | invalidate the corresponding Scheme object. */ | |
1086 | ||
1087 | static void | |
1088 | bpscm_breakpoint_deleted (struct breakpoint *b) | |
1089 | { | |
1090 | int num = b->number; | |
1091 | struct breakpoint *bp; | |
1092 | ||
1093 | /* TODO: Why the lookup? We have B. */ | |
1094 | ||
1095 | bp = get_breakpoint (num); | |
1096 | if (bp) | |
1097 | { | |
1098 | breakpoint_smob *bp_smob = bp->scm_bp_object; | |
1099 | ||
1100 | if (bp_smob) | |
1101 | { | |
1102 | bp_smob->bp = NULL; | |
16f691fb DE |
1103 | bp_smob->number = -1; |
1104 | bp_smob->stop = SCM_BOOL_F; | |
ed3ef339 DE |
1105 | scm_gc_unprotect_object (bp_smob->containing_scm); |
1106 | } | |
1107 | } | |
1108 | } | |
1109 | \f | |
1110 | /* Initialize the Scheme breakpoint code. */ | |
1111 | ||
1112 | static const scheme_integer_constant breakpoint_integer_constants[] = | |
1113 | { | |
1114 | { "BP_NONE", bp_none }, | |
1115 | { "BP_BREAKPOINT", bp_breakpoint }, | |
1116 | { "BP_WATCHPOINT", bp_watchpoint }, | |
1117 | { "BP_HARDWARE_WATCHPOINT", bp_hardware_watchpoint }, | |
1118 | { "BP_READ_WATCHPOINT", bp_read_watchpoint }, | |
1119 | { "BP_ACCESS_WATCHPOINT", bp_access_watchpoint }, | |
1120 | ||
1121 | { "WP_READ", hw_read }, | |
1122 | { "WP_WRITE", hw_write }, | |
1123 | { "WP_ACCESS", hw_access }, | |
1124 | ||
1125 | END_INTEGER_CONSTANTS | |
1126 | }; | |
1127 | ||
1128 | static const scheme_function breakpoint_functions[] = | |
1129 | { | |
16f691fb | 1130 | { "make-breakpoint", 1, 0, 1, gdbscm_make_breakpoint, |
ed3ef339 | 1131 | "\ |
16f691fb | 1132 | Create a GDB breakpoint object.\n\ |
ed3ef339 DE |
1133 | \n\ |
1134 | Arguments:\n\ | |
16f691fb DE |
1135 | location [#:type <type>] [#:wp-class <wp-class>] [#:internal <bool>]\n\ |
1136 | Returns:\n\ | |
1137 | <gdb:breakpoint object" }, | |
1138 | ||
1139 | { "register-breakpoint!", 1, 0, 0, gdbscm_register_breakpoint_x, | |
1140 | "\ | |
1141 | Register a <gdb:breakpoint> object with GDB." }, | |
ed3ef339 | 1142 | |
16f691fb | 1143 | { "delete-breakpoint!", 1, 0, 0, gdbscm_delete_breakpoint_x, |
ed3ef339 DE |
1144 | "\ |
1145 | Delete the breakpoint from GDB." }, | |
1146 | ||
1147 | { "breakpoints", 0, 0, 0, gdbscm_breakpoints, | |
1148 | "\ | |
1149 | Return a list of all GDB breakpoints.\n\ | |
1150 | \n\ | |
1151 | Arguments: none" }, | |
1152 | ||
1153 | { "breakpoint?", 1, 0, 0, gdbscm_breakpoint_p, | |
1154 | "\ | |
1155 | Return #t if the object is a <gdb:breakpoint> object." }, | |
1156 | ||
1157 | { "breakpoint-valid?", 1, 0, 0, gdbscm_breakpoint_valid_p, | |
1158 | "\ | |
1159 | Return #t if the breakpoint has not been deleted from GDB." }, | |
1160 | ||
1161 | { "breakpoint-number", 1, 0, 0, gdbscm_breakpoint_number, | |
1162 | "\ | |
1163 | Return the breakpoint's number." }, | |
1164 | ||
1165 | { "breakpoint-type", 1, 0, 0, gdbscm_breakpoint_type, | |
1166 | "\ | |
1167 | Return the type of the breakpoint." }, | |
1168 | ||
1169 | { "breakpoint-visible?", 1, 0, 0, gdbscm_breakpoint_visible, | |
1170 | "\ | |
1171 | Return #t if the breakpoint is visible to the user." }, | |
1172 | ||
1173 | { "breakpoint-location", 1, 0, 0, gdbscm_breakpoint_location, | |
1174 | "\ | |
1175 | Return the location of the breakpoint as specified by the user." }, | |
1176 | ||
1177 | { "breakpoint-expression", 1, 0, 0, gdbscm_breakpoint_expression, | |
1178 | "\ | |
1179 | Return the expression of the breakpoint as specified by the user.\n\ | |
1180 | Valid for watchpoints only, returns #f for non-watchpoints." }, | |
1181 | ||
1182 | { "breakpoint-enabled?", 1, 0, 0, gdbscm_breakpoint_enabled_p, | |
1183 | "\ | |
1184 | Return #t if the breakpoint is enabled." }, | |
1185 | ||
1186 | { "set-breakpoint-enabled!", 2, 0, 0, gdbscm_set_breakpoint_enabled_x, | |
1187 | "\ | |
1188 | Set the breakpoint's enabled state.\n\ | |
1189 | \n\ | |
5c6d4fb2 | 1190 | Arguments: <gdb:breakpoint> boolean" }, |
ed3ef339 DE |
1191 | |
1192 | { "breakpoint-silent?", 1, 0, 0, gdbscm_breakpoint_silent_p, | |
1193 | "\ | |
1194 | Return #t if the breakpoint is silent." }, | |
1195 | ||
1196 | { "set-breakpoint-silent!", 2, 0, 0, gdbscm_set_breakpoint_silent_x, | |
1197 | "\ | |
1198 | Set the breakpoint's silent state.\n\ | |
1199 | \n\ | |
1200 | Arguments: <gdb:breakpoint> boolean" }, | |
1201 | ||
1202 | { "breakpoint-ignore-count", 1, 0, 0, gdbscm_breakpoint_ignore_count, | |
1203 | "\ | |
1204 | Return the breakpoint's \"ignore\" count." }, | |
1205 | ||
1206 | { "set-breakpoint-ignore-count!", 2, 0, 0, | |
1207 | gdbscm_set_breakpoint_ignore_count_x, | |
1208 | "\ | |
1209 | Set the breakpoint's \"ignore\" count.\n\ | |
1210 | \n\ | |
1211 | Arguments: <gdb:breakpoint> count" }, | |
1212 | ||
1213 | { "breakpoint-hit-count", 1, 0, 0, gdbscm_breakpoint_hit_count, | |
1214 | "\ | |
1215 | Return the breakpoint's \"hit\" count." }, | |
1216 | ||
1217 | { "set-breakpoint-hit-count!", 2, 0, 0, gdbscm_set_breakpoint_hit_count_x, | |
1218 | "\ | |
1219 | Set the breakpoint's \"hit\" count. The value must be zero.\n\ | |
1220 | \n\ | |
1221 | Arguments: <gdb:breakpoint> 0" }, | |
1222 | ||
1223 | { "breakpoint-thread", 1, 0, 0, gdbscm_breakpoint_thread, | |
1224 | "\ | |
1225 | Return the breakpoint's thread id or #f if there isn't one." }, | |
1226 | ||
1227 | { "set-breakpoint-thread!", 2, 0, 0, gdbscm_set_breakpoint_thread_x, | |
1228 | "\ | |
1229 | Set the thread id for this breakpoint.\n\ | |
1230 | \n\ | |
1231 | Arguments: <gdb:breakpoint> thread-id" }, | |
1232 | ||
1233 | { "breakpoint-task", 1, 0, 0, gdbscm_breakpoint_task, | |
1234 | "\ | |
1235 | Return the breakpoint's Ada task-id or #f if there isn't one." }, | |
1236 | ||
1237 | { "set-breakpoint-task!", 2, 0, 0, gdbscm_set_breakpoint_task_x, | |
1238 | "\ | |
1239 | Set the breakpoint's Ada task-id.\n\ | |
1240 | \n\ | |
1241 | Arguments: <gdb:breakpoint> task-id" }, | |
1242 | ||
1243 | { "breakpoint-condition", 1, 0, 0, gdbscm_breakpoint_condition, | |
1244 | "\ | |
1245 | Return the breakpoint's condition as specified by the user.\n\ | |
1246 | Return #f if there isn't one." }, | |
1247 | ||
1248 | { "set-breakpoint-condition!", 2, 0, 0, gdbscm_set_breakpoint_condition_x, | |
1249 | "\ | |
1250 | Set the breakpoint's condition.\n\ | |
1251 | \n\ | |
1252 | Arguments: <gdb:breakpoint> condition\n\ | |
1253 | condition: a string" }, | |
1254 | ||
1255 | { "breakpoint-stop", 1, 0, 0, gdbscm_breakpoint_stop, | |
1256 | "\ | |
1257 | Return the breakpoint's stop predicate.\n\ | |
1258 | Return #f if there isn't one." }, | |
1259 | ||
1260 | { "set-breakpoint-stop!", 2, 0, 0, gdbscm_set_breakpoint_stop_x, | |
1261 | "\ | |
1262 | Set the breakpoint's stop predicate.\n\ | |
1263 | \n\ | |
1264 | Arguments: <gdb:breakpoint> procedure\n\ | |
1265 | procedure: A procedure of one argument, the breakpoint.\n\ | |
1266 | Its result is true if program execution should stop." }, | |
1267 | ||
1268 | { "breakpoint-commands", 1, 0, 0, gdbscm_breakpoint_commands, | |
1269 | "\ | |
1270 | Return the breakpoint's commands." }, | |
1271 | ||
1272 | END_FUNCTIONS | |
1273 | }; | |
1274 | ||
1275 | void | |
1276 | gdbscm_initialize_breakpoints (void) | |
1277 | { | |
1278 | breakpoint_smob_tag | |
1279 | = gdbscm_make_smob_type (breakpoint_smob_name, sizeof (breakpoint_smob)); | |
ed3ef339 DE |
1280 | scm_set_smob_free (breakpoint_smob_tag, bpscm_free_breakpoint_smob); |
1281 | scm_set_smob_print (breakpoint_smob_tag, bpscm_print_breakpoint_smob); | |
1282 | ||
1283 | observer_attach_breakpoint_created (bpscm_breakpoint_created); | |
1284 | observer_attach_breakpoint_deleted (bpscm_breakpoint_deleted); | |
1285 | ||
1286 | gdbscm_define_integer_constants (breakpoint_integer_constants, 1); | |
1287 | gdbscm_define_functions (breakpoint_functions, 1); | |
1288 | ||
1289 | type_keyword = scm_from_latin1_keyword ("type"); | |
1290 | wp_class_keyword = scm_from_latin1_keyword ("wp-class"); | |
1291 | internal_keyword = scm_from_latin1_keyword ("internal"); | |
1292 | } |