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ed3ef339 DE |
1 | /* Scheme interface to breakpoints. |
2 | ||
3666a048 | 3 | Copyright (C) 2008-2021 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" | |
76727919 | 28 | #include "observable.h" |
ed3ef339 DE |
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" | |
f00aae0f | 34 | #include "location.h" |
ed3ef339 DE |
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"; | |
ed3ef339 DE |
155 | default: return "unknown"; |
156 | } | |
157 | } | |
158 | ||
159 | /* The smob "print" function for <gdb:breakpoint>. */ | |
160 | ||
161 | static int | |
162 | bpscm_print_breakpoint_smob (SCM self, SCM port, scm_print_state *pstate) | |
163 | { | |
164 | breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (self); | |
165 | struct breakpoint *b = bp_smob->bp; | |
166 | ||
167 | gdbscm_printf (port, "#<%s", breakpoint_smob_name); | |
168 | ||
169 | /* Only print what we export to the user. | |
170 | The rest are possibly internal implementation details. */ | |
171 | ||
172 | gdbscm_printf (port, " #%d", bp_smob->number); | |
173 | ||
174 | /* Careful, the breakpoint may be invalid. */ | |
175 | if (b != NULL) | |
176 | { | |
177 | gdbscm_printf (port, " %s %s %s", | |
178 | bpscm_type_to_string (b->type), | |
179 | bpscm_enable_state_to_string (b->enable_state), | |
180 | b->silent ? "silent" : "noisy"); | |
181 | ||
182 | gdbscm_printf (port, " hit:%d", b->hit_count); | |
183 | gdbscm_printf (port, " ignore:%d", b->ignore_count); | |
184 | ||
0618ecf6 AB |
185 | if (b->location != nullptr) |
186 | { | |
187 | const char *str = event_location_to_string (b->location.get ()); | |
188 | if (str != nullptr) | |
189 | gdbscm_printf (port, " @%s", str); | |
190 | } | |
ed3ef339 DE |
191 | } |
192 | ||
193 | scm_puts (">", port); | |
194 | ||
195 | scm_remember_upto_here_1 (self); | |
196 | ||
197 | /* Non-zero means success. */ | |
198 | return 1; | |
199 | } | |
200 | ||
201 | /* Low level routine to create a <gdb:breakpoint> object. */ | |
202 | ||
203 | static SCM | |
204 | bpscm_make_breakpoint_smob (void) | |
205 | { | |
206 | breakpoint_smob *bp_smob = (breakpoint_smob *) | |
207 | scm_gc_malloc (sizeof (breakpoint_smob), breakpoint_smob_name); | |
208 | SCM bp_scm; | |
209 | ||
16f691fb | 210 | memset (bp_smob, 0, sizeof (*bp_smob)); |
ed3ef339 | 211 | bp_smob->number = -1; |
ed3ef339 DE |
212 | bp_smob->stop = SCM_BOOL_F; |
213 | bp_scm = scm_new_smob (breakpoint_smob_tag, (scm_t_bits) bp_smob); | |
214 | bp_smob->containing_scm = bp_scm; | |
215 | gdbscm_init_gsmob (&bp_smob->base); | |
216 | ||
217 | return bp_scm; | |
218 | } | |
219 | ||
220 | /* Return non-zero if we want a Scheme wrapper for breakpoint B. | |
221 | If FROM_SCHEME is non-zero,this is called for a breakpoint created | |
222 | by the user from Scheme. Otherwise it is zero. */ | |
223 | ||
224 | static int | |
225 | bpscm_want_scm_wrapper_p (struct breakpoint *bp, int from_scheme) | |
226 | { | |
227 | /* Don't create <gdb:breakpoint> objects for internal GDB breakpoints. */ | |
228 | if (bp->number < 0 && !from_scheme) | |
229 | return 0; | |
230 | ||
231 | /* The others are not supported. */ | |
232 | if (bp->type != bp_breakpoint | |
233 | && bp->type != bp_watchpoint | |
234 | && bp->type != bp_hardware_watchpoint | |
235 | && bp->type != bp_read_watchpoint | |
236 | && bp->type != bp_access_watchpoint) | |
237 | return 0; | |
238 | ||
239 | return 1; | |
240 | } | |
241 | ||
242 | /* Install the Scheme side of a breakpoint, CONTAINING_SCM, in | |
243 | the gdb side BP. */ | |
244 | ||
245 | static void | |
246 | bpscm_attach_scm_to_breakpoint (struct breakpoint *bp, SCM containing_scm) | |
247 | { | |
248 | breakpoint_smob *bp_smob; | |
249 | ||
250 | bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (containing_scm); | |
251 | bp_smob->number = bp->number; | |
252 | bp_smob->bp = bp; | |
253 | bp_smob->containing_scm = containing_scm; | |
254 | bp_smob->bp->scm_bp_object = bp_smob; | |
255 | ||
256 | /* The owner of this breakpoint is not in GC-controlled memory, so we need | |
257 | to protect it from GC until the breakpoint is deleted. */ | |
258 | scm_gc_protect_object (containing_scm); | |
259 | } | |
260 | ||
261 | /* Return non-zero if SCM is a breakpoint smob. */ | |
262 | ||
263 | static int | |
264 | bpscm_is_breakpoint (SCM scm) | |
265 | { | |
266 | return SCM_SMOB_PREDICATE (breakpoint_smob_tag, scm); | |
267 | } | |
268 | ||
269 | /* (breakpoint? scm) -> boolean */ | |
270 | ||
271 | static SCM | |
272 | gdbscm_breakpoint_p (SCM scm) | |
273 | { | |
274 | return scm_from_bool (bpscm_is_breakpoint (scm)); | |
275 | } | |
276 | ||
277 | /* Returns the <gdb:breakpoint> object in SELF. | |
278 | Throws an exception if SELF is not a <gdb:breakpoint> object. */ | |
279 | ||
280 | static SCM | |
281 | bpscm_get_breakpoint_arg_unsafe (SCM self, int arg_pos, const char *func_name) | |
282 | { | |
283 | SCM_ASSERT_TYPE (bpscm_is_breakpoint (self), self, arg_pos, func_name, | |
284 | breakpoint_smob_name); | |
285 | ||
286 | return self; | |
287 | } | |
288 | ||
289 | /* Returns a pointer to the breakpoint smob of SELF. | |
290 | Throws an exception if SELF is not a <gdb:breakpoint> object. */ | |
291 | ||
292 | static breakpoint_smob * | |
293 | bpscm_get_breakpoint_smob_arg_unsafe (SCM self, int arg_pos, | |
294 | const char *func_name) | |
295 | { | |
296 | SCM bp_scm = bpscm_get_breakpoint_arg_unsafe (self, arg_pos, func_name); | |
297 | breakpoint_smob *bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (bp_scm); | |
298 | ||
299 | return bp_smob; | |
300 | } | |
301 | ||
302 | /* Return non-zero if breakpoint BP_SMOB is valid. */ | |
303 | ||
304 | static int | |
305 | bpscm_is_valid (breakpoint_smob *bp_smob) | |
306 | { | |
307 | return bp_smob->bp != NULL; | |
308 | } | |
309 | ||
310 | /* Returns the breakpoint smob in SELF, verifying it's valid. | |
311 | Throws an exception if SELF is not a <gdb:breakpoint> object, | |
312 | or is invalid. */ | |
313 | ||
314 | static breakpoint_smob * | |
315 | bpscm_get_valid_breakpoint_smob_arg_unsafe (SCM self, int arg_pos, | |
316 | const char *func_name) | |
317 | { | |
318 | breakpoint_smob *bp_smob | |
319 | = bpscm_get_breakpoint_smob_arg_unsafe (self, arg_pos, func_name); | |
320 | ||
321 | if (!bpscm_is_valid (bp_smob)) | |
322 | { | |
323 | gdbscm_invalid_object_error (func_name, arg_pos, self, | |
324 | _("<gdb:breakpoint>")); | |
325 | } | |
326 | ||
327 | return bp_smob; | |
328 | } | |
329 | \f | |
330 | /* Breakpoint methods. */ | |
331 | ||
16f691fb DE |
332 | /* (make-breakpoint string [#:type integer] [#:wp-class integer] |
333 | [#:internal boolean) -> <gdb:breakpoint> | |
334 | ||
335 | The result is the <gdb:breakpoint> Scheme object. | |
336 | The breakpoint is not available to be used yet, however. | |
337 | It must still be added to gdb with register-breakpoint!. */ | |
ed3ef339 DE |
338 | |
339 | static SCM | |
16f691fb | 340 | gdbscm_make_breakpoint (SCM location_scm, SCM rest) |
ed3ef339 DE |
341 | { |
342 | const SCM keywords[] = { | |
343 | type_keyword, wp_class_keyword, internal_keyword, SCM_BOOL_F | |
344 | }; | |
16f691fb DE |
345 | char *s; |
346 | char *location; | |
ed3ef339 | 347 | int type_arg_pos = -1, access_type_arg_pos = -1, internal_arg_pos = -1; |
f486487f SM |
348 | enum bptype type = bp_breakpoint; |
349 | enum target_hw_bp_type access_type = hw_write; | |
ed3ef339 DE |
350 | int internal = 0; |
351 | SCM result; | |
16f691fb | 352 | breakpoint_smob *bp_smob; |
ed3ef339 DE |
353 | |
354 | gdbscm_parse_function_args (FUNC_NAME, SCM_ARG1, keywords, "s#iit", | |
16f691fb | 355 | location_scm, &location, rest, |
ed3ef339 DE |
356 | &type_arg_pos, &type, |
357 | &access_type_arg_pos, &access_type, | |
358 | &internal_arg_pos, &internal); | |
359 | ||
360 | result = bpscm_make_breakpoint_smob (); | |
16f691fb DE |
361 | bp_smob = (breakpoint_smob *) SCM_SMOB_DATA (result); |
362 | ||
363 | s = location; | |
364 | location = gdbscm_gc_xstrdup (s); | |
365 | xfree (s); | |
366 | ||
367 | switch (type) | |
368 | { | |
369 | case bp_breakpoint: | |
370 | if (access_type_arg_pos > 0) | |
371 | { | |
372 | gdbscm_misc_error (FUNC_NAME, access_type_arg_pos, | |
373 | scm_from_int (access_type), | |
374 | _("access type with breakpoint is not allowed")); | |
375 | } | |
376 | break; | |
377 | case bp_watchpoint: | |
378 | switch (access_type) | |
379 | { | |
380 | case hw_write: | |
381 | case hw_access: | |
382 | case hw_read: | |
383 | break; | |
384 | default: | |
385 | gdbscm_out_of_range_error (FUNC_NAME, access_type_arg_pos, | |
386 | scm_from_int (access_type), | |
387 | _("invalid watchpoint class")); | |
388 | } | |
389 | break; | |
390 | default: | |
391 | gdbscm_out_of_range_error (FUNC_NAME, access_type_arg_pos, | |
392 | scm_from_int (type), | |
393 | _("invalid breakpoint type")); | |
394 | } | |
395 | ||
396 | bp_smob->is_scheme_bkpt = 1; | |
397 | bp_smob->spec.location = location; | |
398 | bp_smob->spec.type = type; | |
399 | bp_smob->spec.access_type = access_type; | |
400 | bp_smob->spec.is_internal = internal; | |
401 | ||
402 | return result; | |
403 | } | |
404 | ||
405 | /* (register-breakpoint! <gdb:breakpoint>) -> unspecified | |
406 | ||
407 | It is an error to register a breakpoint created outside of Guile, | |
408 | or an already-registered breakpoint. */ | |
409 | ||
410 | static SCM | |
411 | gdbscm_register_breakpoint_x (SCM self) | |
412 | { | |
413 | breakpoint_smob *bp_smob | |
414 | = bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
680d7fd5 | 415 | gdbscm_gdb_exception except {}; |
f2fc3015 | 416 | const char *location, *copy; |
16f691fb DE |
417 | |
418 | /* We only support registering breakpoints created with make-breakpoint. */ | |
419 | if (!bp_smob->is_scheme_bkpt) | |
420 | scm_misc_error (FUNC_NAME, _("not a Scheme breakpoint"), SCM_EOL); | |
421 | ||
422 | if (bpscm_is_valid (bp_smob)) | |
423 | scm_misc_error (FUNC_NAME, _("breakpoint is already registered"), SCM_EOL); | |
424 | ||
425 | pending_breakpoint_scm = self; | |
f00aae0f | 426 | location = bp_smob->spec.location; |
a96e36da | 427 | copy = skip_spaces (location); |
a20714ff PA |
428 | event_location_up eloc |
429 | = string_to_event_location_basic (©, | |
430 | current_language, | |
431 | symbol_name_match_type::WILD); | |
ed3ef339 | 432 | |
a70b8144 | 433 | try |
ed3ef339 | 434 | { |
16f691fb | 435 | int internal = bp_smob->spec.is_internal; |
ed3ef339 | 436 | |
16f691fb | 437 | switch (bp_smob->spec.type) |
ed3ef339 DE |
438 | { |
439 | case bp_breakpoint: | |
440 | { | |
bac7c5cf GB |
441 | const breakpoint_ops *ops = |
442 | breakpoint_ops_for_event_location (eloc.get (), false); | |
ed3ef339 | 443 | create_breakpoint (get_current_arch (), |
10a636cc | 444 | eloc.get (), NULL, -1, NULL, false, |
ed3ef339 DE |
445 | 0, |
446 | 0, bp_breakpoint, | |
447 | 0, | |
448 | AUTO_BOOLEAN_TRUE, | |
bac7c5cf | 449 | ops, |
ed3ef339 DE |
450 | 0, 1, internal, 0); |
451 | break; | |
452 | } | |
453 | case bp_watchpoint: | |
454 | { | |
16f691fb DE |
455 | enum target_hw_bp_type access_type = bp_smob->spec.access_type; |
456 | ||
ed3ef339 | 457 | if (access_type == hw_write) |
16f691fb | 458 | watch_command_wrapper (location, 0, internal); |
ed3ef339 | 459 | else if (access_type == hw_access) |
16f691fb | 460 | awatch_command_wrapper (location, 0, internal); |
ed3ef339 | 461 | else if (access_type == hw_read) |
16f691fb | 462 | rwatch_command_wrapper (location, 0, internal); |
ed3ef339 | 463 | else |
16f691fb | 464 | gdb_assert_not_reached ("invalid access type"); |
ed3ef339 DE |
465 | break; |
466 | } | |
467 | default: | |
16f691fb | 468 | gdb_assert_not_reached ("invalid breakpoint type"); |
ed3ef339 | 469 | } |
ed3ef339 | 470 | } |
230d2906 | 471 | catch (const gdb_exception &ex) |
492d29ea | 472 | { |
680d7fd5 | 473 | except = unpack (ex); |
492d29ea | 474 | } |
492d29ea | 475 | |
ed3ef339 DE |
476 | /* Ensure this gets reset, even if there's an error. */ |
477 | pending_breakpoint_scm = SCM_BOOL_F; | |
478 | GDBSCM_HANDLE_GDB_EXCEPTION (except); | |
479 | ||
16f691fb | 480 | return SCM_UNSPECIFIED; |
ed3ef339 DE |
481 | } |
482 | ||
16f691fb DE |
483 | /* (delete-breakpoint! <gdb:breakpoint>) -> unspecified |
484 | Scheme function which deletes (removes) the underlying GDB breakpoint | |
485 | from GDB's list of breakpoints. This triggers the breakpoint_deleted | |
486 | observer which will call gdbscm_breakpoint_deleted; that function cleans | |
487 | up the Scheme bits. */ | |
ed3ef339 DE |
488 | |
489 | static SCM | |
16f691fb | 490 | gdbscm_delete_breakpoint_x (SCM self) |
ed3ef339 DE |
491 | { |
492 | breakpoint_smob *bp_smob | |
493 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
ed3ef339 | 494 | |
680d7fd5 | 495 | gdbscm_gdb_exception exc {}; |
a70b8144 | 496 | try |
ed3ef339 DE |
497 | { |
498 | delete_breakpoint (bp_smob->bp); | |
499 | } | |
230d2906 | 500 | catch (const gdb_exception &except) |
492d29ea | 501 | { |
680d7fd5 | 502 | exc = unpack (except); |
492d29ea | 503 | } |
ed3ef339 | 504 | |
680d7fd5 | 505 | GDBSCM_HANDLE_GDB_EXCEPTION (exc); |
ed3ef339 DE |
506 | return SCM_UNSPECIFIED; |
507 | } | |
508 | ||
509 | /* iterate_over_breakpoints function for gdbscm_breakpoints. */ | |
510 | ||
240edef6 | 511 | static void |
95da600f | 512 | bpscm_build_bp_list (struct breakpoint *bp, SCM *list) |
ed3ef339 | 513 | { |
ed3ef339 DE |
514 | breakpoint_smob *bp_smob = bp->scm_bp_object; |
515 | ||
516 | /* Lazily create wrappers for breakpoints created outside Scheme. */ | |
517 | ||
518 | if (bp_smob == NULL) | |
519 | { | |
520 | if (bpscm_want_scm_wrapper_p (bp, 0)) | |
521 | { | |
522 | SCM bp_scm; | |
523 | ||
524 | bp_scm = bpscm_make_breakpoint_smob (); | |
525 | bpscm_attach_scm_to_breakpoint (bp, bp_scm); | |
526 | /* Refetch it. */ | |
527 | bp_smob = bp->scm_bp_object; | |
528 | } | |
529 | } | |
530 | ||
531 | /* Not all breakpoints will have a companion Scheme object. | |
532 | Only breakpoints that trigger the created_breakpoint observer call, | |
533 | and satisfy certain conditions (see bpscm_want_scm_wrapper_p), | |
534 | get a companion object (this includes Scheme-created breakpoints). */ | |
535 | ||
536 | if (bp_smob != NULL) | |
537 | *list = scm_cons (bp_smob->containing_scm, *list); | |
ed3ef339 DE |
538 | } |
539 | ||
540 | /* (breakpoints) -> list | |
541 | Return a list of all breakpoints. */ | |
542 | ||
543 | static SCM | |
544 | gdbscm_breakpoints (void) | |
545 | { | |
546 | SCM list = SCM_EOL; | |
547 | ||
240edef6 SM |
548 | for (breakpoint *bp : all_breakpoints ()) |
549 | bpscm_build_bp_list (bp, &list); | |
ed3ef339 DE |
550 | |
551 | return scm_reverse_x (list, SCM_EOL); | |
552 | } | |
553 | ||
554 | /* (breakpoint-valid? <gdb:breakpoint>) -> boolean | |
555 | Returns #t if SELF is still valid. */ | |
556 | ||
557 | static SCM | |
558 | gdbscm_breakpoint_valid_p (SCM self) | |
559 | { | |
560 | breakpoint_smob *bp_smob | |
561 | = bpscm_get_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
562 | ||
563 | return scm_from_bool (bpscm_is_valid (bp_smob)); | |
564 | } | |
565 | ||
566 | /* (breakpoint-enabled? <gdb:breakpoint>) -> boolean */ | |
567 | ||
568 | static SCM | |
569 | gdbscm_breakpoint_enabled_p (SCM self) | |
570 | { | |
571 | breakpoint_smob *bp_smob | |
572 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
573 | ||
574 | return scm_from_bool (bp_smob->bp->enable_state == bp_enabled); | |
575 | } | |
576 | ||
577 | /* (set-breakpoint-enabled? <gdb:breakpoint> boolean) -> unspecified */ | |
578 | ||
579 | static SCM | |
580 | gdbscm_set_breakpoint_enabled_x (SCM self, SCM newvalue) | |
581 | { | |
582 | breakpoint_smob *bp_smob | |
583 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
ed3ef339 DE |
584 | |
585 | SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME, | |
586 | _("boolean")); | |
587 | ||
680d7fd5 | 588 | gdbscm_gdb_exception exc {}; |
a70b8144 | 589 | try |
ed3ef339 DE |
590 | { |
591 | if (gdbscm_is_true (newvalue)) | |
592 | enable_breakpoint (bp_smob->bp); | |
593 | else | |
594 | disable_breakpoint (bp_smob->bp); | |
595 | } | |
230d2906 | 596 | catch (const gdb_exception &except) |
492d29ea | 597 | { |
680d7fd5 | 598 | exc = unpack (except); |
492d29ea | 599 | } |
ed3ef339 | 600 | |
680d7fd5 | 601 | GDBSCM_HANDLE_GDB_EXCEPTION (exc); |
ed3ef339 DE |
602 | return SCM_UNSPECIFIED; |
603 | } | |
604 | ||
605 | /* (breakpoint-silent? <gdb:breakpoint>) -> boolean */ | |
606 | ||
607 | static SCM | |
608 | gdbscm_breakpoint_silent_p (SCM self) | |
609 | { | |
610 | breakpoint_smob *bp_smob | |
611 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
612 | ||
613 | return scm_from_bool (bp_smob->bp->silent); | |
614 | } | |
615 | ||
616 | /* (set-breakpoint-silent?! <gdb:breakpoint> boolean) -> unspecified */ | |
617 | ||
618 | static SCM | |
619 | gdbscm_set_breakpoint_silent_x (SCM self, SCM newvalue) | |
620 | { | |
621 | breakpoint_smob *bp_smob | |
622 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
ed3ef339 DE |
623 | |
624 | SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME, | |
625 | _("boolean")); | |
626 | ||
680d7fd5 | 627 | gdbscm_gdb_exception exc {}; |
a70b8144 | 628 | try |
ed3ef339 DE |
629 | { |
630 | breakpoint_set_silent (bp_smob->bp, gdbscm_is_true (newvalue)); | |
631 | } | |
230d2906 | 632 | catch (const gdb_exception &except) |
492d29ea | 633 | { |
680d7fd5 | 634 | exc = unpack (except); |
492d29ea | 635 | } |
ed3ef339 | 636 | |
680d7fd5 | 637 | GDBSCM_HANDLE_GDB_EXCEPTION (exc); |
ed3ef339 DE |
638 | return SCM_UNSPECIFIED; |
639 | } | |
640 | ||
641 | /* (breakpoint-ignore-count <gdb:breakpoint>) -> integer */ | |
642 | ||
643 | static SCM | |
644 | gdbscm_breakpoint_ignore_count (SCM self) | |
645 | { | |
646 | breakpoint_smob *bp_smob | |
647 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
648 | ||
649 | return scm_from_long (bp_smob->bp->ignore_count); | |
650 | } | |
651 | ||
652 | /* (set-breakpoint-ignore-count! <gdb:breakpoint> integer) | |
653 | -> unspecified */ | |
654 | ||
655 | static SCM | |
656 | gdbscm_set_breakpoint_ignore_count_x (SCM self, SCM newvalue) | |
657 | { | |
658 | breakpoint_smob *bp_smob | |
659 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
660 | long value; | |
ed3ef339 DE |
661 | |
662 | SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX), | |
663 | newvalue, SCM_ARG2, FUNC_NAME, _("integer")); | |
664 | ||
665 | value = scm_to_long (newvalue); | |
666 | if (value < 0) | |
667 | value = 0; | |
668 | ||
680d7fd5 | 669 | gdbscm_gdb_exception exc {}; |
a70b8144 | 670 | try |
ed3ef339 DE |
671 | { |
672 | set_ignore_count (bp_smob->number, (int) value, 0); | |
673 | } | |
230d2906 | 674 | catch (const gdb_exception &except) |
492d29ea | 675 | { |
680d7fd5 | 676 | exc = unpack (except); |
492d29ea | 677 | } |
ed3ef339 | 678 | |
680d7fd5 | 679 | GDBSCM_HANDLE_GDB_EXCEPTION (exc); |
ed3ef339 DE |
680 | return SCM_UNSPECIFIED; |
681 | } | |
682 | ||
683 | /* (breakpoint-hit-count <gdb:breakpoint>) -> integer */ | |
684 | ||
685 | static SCM | |
686 | gdbscm_breakpoint_hit_count (SCM self) | |
687 | { | |
688 | breakpoint_smob *bp_smob | |
689 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
690 | ||
691 | return scm_from_long (bp_smob->bp->hit_count); | |
692 | } | |
693 | ||
694 | /* (set-breakpoint-hit-count! <gdb:breakpoint> integer) -> unspecified */ | |
695 | ||
696 | static SCM | |
697 | gdbscm_set_breakpoint_hit_count_x (SCM self, SCM newvalue) | |
698 | { | |
699 | breakpoint_smob *bp_smob | |
700 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
701 | long value; | |
702 | ||
703 | SCM_ASSERT_TYPE (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX), | |
704 | newvalue, SCM_ARG2, FUNC_NAME, _("integer")); | |
705 | ||
706 | value = scm_to_long (newvalue); | |
707 | if (value < 0) | |
708 | value = 0; | |
709 | ||
710 | if (value != 0) | |
711 | { | |
712 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
713 | _("hit-count must be zero")); | |
714 | } | |
715 | ||
716 | bp_smob->bp->hit_count = 0; | |
717 | ||
718 | return SCM_UNSPECIFIED; | |
719 | } | |
720 | ||
721 | /* (breakpoint-thread <gdb:breakpoint>) -> integer */ | |
722 | ||
723 | static SCM | |
724 | gdbscm_breakpoint_thread (SCM self) | |
725 | { | |
726 | breakpoint_smob *bp_smob | |
727 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
728 | ||
729 | if (bp_smob->bp->thread == -1) | |
730 | return SCM_BOOL_F; | |
731 | ||
732 | return scm_from_long (bp_smob->bp->thread); | |
733 | } | |
734 | ||
735 | /* (set-breakpoint-thread! <gdb:breakpoint> integer) -> unspecified */ | |
736 | ||
737 | static SCM | |
738 | gdbscm_set_breakpoint_thread_x (SCM self, SCM newvalue) | |
739 | { | |
740 | breakpoint_smob *bp_smob | |
741 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
742 | long id; | |
743 | ||
744 | if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX)) | |
745 | { | |
746 | id = scm_to_long (newvalue); | |
5d5658a1 | 747 | if (!valid_global_thread_id (id)) |
ed3ef339 DE |
748 | { |
749 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
750 | _("invalid thread id")); | |
751 | } | |
752 | } | |
753 | else if (gdbscm_is_false (newvalue)) | |
754 | id = -1; | |
755 | else | |
756 | SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f")); | |
757 | ||
758 | breakpoint_set_thread (bp_smob->bp, id); | |
759 | ||
760 | return SCM_UNSPECIFIED; | |
761 | } | |
762 | ||
763 | /* (breakpoint-task <gdb:breakpoint>) -> integer */ | |
764 | ||
765 | static SCM | |
766 | gdbscm_breakpoint_task (SCM self) | |
767 | { | |
768 | breakpoint_smob *bp_smob | |
769 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
770 | ||
771 | if (bp_smob->bp->task == 0) | |
772 | return SCM_BOOL_F; | |
773 | ||
774 | return scm_from_long (bp_smob->bp->task); | |
775 | } | |
776 | ||
777 | /* (set-breakpoint-task! <gdb:breakpoint> integer) -> unspecified */ | |
778 | ||
779 | static SCM | |
780 | gdbscm_set_breakpoint_task_x (SCM self, SCM newvalue) | |
781 | { | |
782 | breakpoint_smob *bp_smob | |
783 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
784 | long id; | |
785 | int valid_id = 0; | |
ed3ef339 DE |
786 | |
787 | if (scm_is_signed_integer (newvalue, LONG_MIN, LONG_MAX)) | |
788 | { | |
789 | id = scm_to_long (newvalue); | |
790 | ||
680d7fd5 | 791 | gdbscm_gdb_exception exc {}; |
a70b8144 | 792 | try |
ed3ef339 DE |
793 | { |
794 | valid_id = valid_task_id (id); | |
795 | } | |
230d2906 | 796 | catch (const gdb_exception &except) |
492d29ea | 797 | { |
680d7fd5 | 798 | exc = unpack (except); |
492d29ea | 799 | } |
ed3ef339 | 800 | |
680d7fd5 | 801 | GDBSCM_HANDLE_GDB_EXCEPTION (exc); |
ed3ef339 DE |
802 | if (! valid_id) |
803 | { | |
804 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG2, newvalue, | |
805 | _("invalid task id")); | |
806 | } | |
807 | } | |
808 | else if (gdbscm_is_false (newvalue)) | |
809 | id = 0; | |
810 | else | |
811 | SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f")); | |
812 | ||
680d7fd5 | 813 | gdbscm_gdb_exception exc {}; |
a70b8144 | 814 | try |
ed3ef339 DE |
815 | { |
816 | breakpoint_set_task (bp_smob->bp, id); | |
817 | } | |
230d2906 | 818 | catch (const gdb_exception &except) |
492d29ea | 819 | { |
680d7fd5 | 820 | exc = unpack (except); |
492d29ea | 821 | } |
ed3ef339 | 822 | |
680d7fd5 | 823 | GDBSCM_HANDLE_GDB_EXCEPTION (exc); |
ed3ef339 DE |
824 | return SCM_UNSPECIFIED; |
825 | } | |
826 | ||
827 | /* (breakpoint-location <gdb:breakpoint>) -> string */ | |
828 | ||
829 | static SCM | |
830 | gdbscm_breakpoint_location (SCM self) | |
831 | { | |
832 | breakpoint_smob *bp_smob | |
833 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
f00aae0f | 834 | const char *str; |
ed3ef339 DE |
835 | |
836 | if (bp_smob->bp->type != bp_breakpoint) | |
837 | return SCM_BOOL_F; | |
838 | ||
d28cd78a | 839 | str = event_location_to_string (bp_smob->bp->location.get ()); |
ed3ef339 DE |
840 | if (! str) |
841 | str = ""; | |
842 | ||
843 | return gdbscm_scm_from_c_string (str); | |
844 | } | |
845 | ||
846 | /* (breakpoint-expression <gdb:breakpoint>) -> string | |
847 | This is only valid for watchpoints. | |
848 | Returns #f for non-watchpoints. */ | |
849 | ||
850 | static SCM | |
851 | gdbscm_breakpoint_expression (SCM self) | |
852 | { | |
853 | breakpoint_smob *bp_smob | |
854 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
ed3ef339 DE |
855 | struct watchpoint *wp; |
856 | ||
857 | if (!is_watchpoint (bp_smob->bp)) | |
858 | return SCM_BOOL_F; | |
859 | ||
860 | wp = (struct watchpoint *) bp_smob->bp; | |
861 | ||
a121b7c1 | 862 | const char *str = wp->exp_string; |
ed3ef339 DE |
863 | if (! str) |
864 | str = ""; | |
865 | ||
866 | return gdbscm_scm_from_c_string (str); | |
867 | } | |
868 | ||
869 | /* (breakpoint-condition <gdb:breakpoint>) -> string */ | |
870 | ||
871 | static SCM | |
872 | gdbscm_breakpoint_condition (SCM self) | |
873 | { | |
874 | breakpoint_smob *bp_smob | |
875 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
876 | char *str; | |
877 | ||
878 | str = bp_smob->bp->cond_string; | |
879 | if (! str) | |
880 | return SCM_BOOL_F; | |
881 | ||
882 | return gdbscm_scm_from_c_string (str); | |
883 | } | |
884 | ||
885 | /* (set-breakpoint-condition! <gdb:breakpoint> string|#f) | |
886 | -> unspecified */ | |
887 | ||
888 | static SCM | |
889 | gdbscm_set_breakpoint_condition_x (SCM self, SCM newvalue) | |
890 | { | |
891 | breakpoint_smob *bp_smob | |
892 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
ed3ef339 DE |
893 | |
894 | SCM_ASSERT_TYPE (scm_is_string (newvalue) || gdbscm_is_false (newvalue), | |
895 | newvalue, SCM_ARG2, FUNC_NAME, | |
896 | _("string or #f")); | |
897 | ||
4c693332 | 898 | return gdbscm_wrap ([=] |
492d29ea | 899 | { |
4c693332 PA |
900 | gdb::unique_xmalloc_ptr<char> exp |
901 | = (gdbscm_is_false (newvalue) | |
902 | ? nullptr | |
903 | : gdbscm_scm_to_c_string (newvalue)); | |
492d29ea | 904 | |
733d554a | 905 | set_breakpoint_condition (bp_smob->bp, exp ? exp.get () : "", 0, false); |
ed3ef339 | 906 | |
4c693332 PA |
907 | return SCM_UNSPECIFIED; |
908 | }); | |
ed3ef339 DE |
909 | } |
910 | ||
911 | /* (breakpoint-stop <gdb:breakpoint>) -> procedure or #f */ | |
912 | ||
913 | static SCM | |
914 | gdbscm_breakpoint_stop (SCM self) | |
915 | { | |
916 | breakpoint_smob *bp_smob | |
917 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
918 | ||
919 | return bp_smob->stop; | |
920 | } | |
921 | ||
922 | /* (set-breakpoint-stop! <gdb:breakpoint> procedure|#f) | |
923 | -> unspecified */ | |
924 | ||
925 | static SCM | |
926 | gdbscm_set_breakpoint_stop_x (SCM self, SCM newvalue) | |
927 | { | |
928 | breakpoint_smob *bp_smob | |
929 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
930 | const struct extension_language_defn *extlang = NULL; | |
931 | ||
932 | SCM_ASSERT_TYPE (gdbscm_is_procedure (newvalue) | |
933 | || gdbscm_is_false (newvalue), | |
934 | newvalue, SCM_ARG2, FUNC_NAME, | |
935 | _("procedure or #f")); | |
936 | ||
937 | if (bp_smob->bp->cond_string != NULL) | |
938 | extlang = get_ext_lang_defn (EXT_LANG_GDB); | |
939 | if (extlang == NULL) | |
940 | extlang = get_breakpoint_cond_ext_lang (bp_smob->bp, EXT_LANG_GUILE); | |
941 | if (extlang != NULL) | |
942 | { | |
943 | char *error_text | |
944 | = xstrprintf (_("Only one stop condition allowed. There is" | |
945 | " currently a %s stop condition defined for" | |
946 | " this breakpoint."), | |
947 | ext_lang_capitalized_name (extlang)); | |
948 | ||
c6486df5 | 949 | scm_dynwind_begin ((scm_t_dynwind_flags) 0); |
ed3ef339 DE |
950 | gdbscm_dynwind_xfree (error_text); |
951 | gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self, error_text); | |
952 | /* The following line, while unnecessary, is present for completeness | |
953 | sake. */ | |
954 | scm_dynwind_end (); | |
955 | } | |
956 | ||
957 | bp_smob->stop = newvalue; | |
958 | ||
959 | return SCM_UNSPECIFIED; | |
960 | } | |
961 | ||
962 | /* (breakpoint-commands <gdb:breakpoint>) -> string */ | |
963 | ||
964 | static SCM | |
965 | gdbscm_breakpoint_commands (SCM self) | |
966 | { | |
967 | breakpoint_smob *bp_smob | |
968 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
969 | struct breakpoint *bp; | |
ed3ef339 | 970 | SCM result; |
ed3ef339 DE |
971 | |
972 | bp = bp_smob->bp; | |
973 | ||
974 | if (bp->commands == NULL) | |
975 | return SCM_BOOL_F; | |
976 | ||
d7e74731 | 977 | string_file buf; |
ed3ef339 | 978 | |
d7e74731 | 979 | current_uiout->redirect (&buf); |
680d7fd5 | 980 | gdbscm_gdb_exception exc {}; |
a70b8144 | 981 | try |
ed3ef339 DE |
982 | { |
983 | print_command_lines (current_uiout, breakpoint_commands (bp), 0); | |
984 | } | |
230d2906 | 985 | catch (const gdb_exception &except) |
ed3ef339 | 986 | { |
680d7fd5 | 987 | exc = unpack (except); |
ed3ef339 DE |
988 | } |
989 | ||
73dcd72d | 990 | current_uiout->redirect (NULL); |
680d7fd5 | 991 | GDBSCM_HANDLE_GDB_EXCEPTION (exc); |
d7e74731 | 992 | result = gdbscm_scm_from_c_string (buf.c_str ()); |
ed3ef339 | 993 | |
ed3ef339 DE |
994 | return result; |
995 | } | |
996 | ||
997 | /* (breakpoint-type <gdb:breakpoint>) -> integer */ | |
998 | ||
999 | static SCM | |
1000 | gdbscm_breakpoint_type (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->bp->type); | |
1006 | } | |
1007 | ||
1008 | /* (breakpoint-visible? <gdb:breakpoint>) -> boolean */ | |
1009 | ||
1010 | static SCM | |
1011 | gdbscm_breakpoint_visible (SCM self) | |
1012 | { | |
1013 | breakpoint_smob *bp_smob | |
1014 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
1015 | ||
1016 | return scm_from_bool (bp_smob->bp->number >= 0); | |
1017 | } | |
1018 | ||
1019 | /* (breakpoint-number <gdb:breakpoint>) -> integer */ | |
1020 | ||
1021 | static SCM | |
1022 | gdbscm_breakpoint_number (SCM self) | |
1023 | { | |
1024 | breakpoint_smob *bp_smob | |
1025 | = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME); | |
1026 | ||
1027 | return scm_from_long (bp_smob->number); | |
1028 | } | |
1029 | \f | |
1030 | /* Return TRUE if "stop" has been set for this breakpoint. | |
1031 | ||
1032 | This is the extension_language_ops.breakpoint_has_cond "method". */ | |
1033 | ||
1034 | int | |
1035 | gdbscm_breakpoint_has_cond (const struct extension_language_defn *extlang, | |
1036 | struct breakpoint *b) | |
1037 | { | |
1038 | breakpoint_smob *bp_smob = b->scm_bp_object; | |
1039 | ||
1040 | if (bp_smob == NULL) | |
1041 | return 0; | |
1042 | ||
1043 | return gdbscm_is_procedure (bp_smob->stop); | |
1044 | } | |
1045 | ||
1046 | /* Call the "stop" method in the breakpoint class. | |
1047 | This must only be called if gdbscm_breakpoint_has_cond returns true. | |
1048 | If the stop method returns #t, the inferior will be stopped at the | |
1049 | breakpoint. Otherwise the inferior will be allowed to continue | |
1050 | (assuming other conditions don't indicate "stop"). | |
1051 | ||
1052 | This is the extension_language_ops.breakpoint_cond_says_stop "method". */ | |
1053 | ||
1054 | enum ext_lang_bp_stop | |
1055 | gdbscm_breakpoint_cond_says_stop | |
1056 | (const struct extension_language_defn *extlang, struct breakpoint *b) | |
1057 | { | |
1058 | breakpoint_smob *bp_smob = b->scm_bp_object; | |
1059 | SCM predicate_result; | |
1060 | int stop; | |
1061 | ||
1062 | if (bp_smob == NULL) | |
1063 | return EXT_LANG_BP_STOP_UNSET; | |
1064 | if (!gdbscm_is_procedure (bp_smob->stop)) | |
1065 | return EXT_LANG_BP_STOP_UNSET; | |
1066 | ||
1067 | stop = 1; | |
1068 | ||
1069 | predicate_result | |
1070 | = gdbscm_safe_call_1 (bp_smob->stop, bp_smob->containing_scm, NULL); | |
1071 | ||
1072 | if (gdbscm_is_exception (predicate_result)) | |
1073 | ; /* Exception already printed. */ | |
1074 | /* If the "stop" function returns #f that means | |
1075 | the Scheme breakpoint wants GDB to continue. */ | |
1076 | else if (gdbscm_is_false (predicate_result)) | |
1077 | stop = 0; | |
1078 | ||
1079 | return stop ? EXT_LANG_BP_STOP_YES : EXT_LANG_BP_STOP_NO; | |
1080 | } | |
1081 | \f | |
1082 | /* Event callback functions. */ | |
1083 | ||
1084 | /* Callback that is used when a breakpoint is created. | |
1085 | For breakpoints created by Scheme, i.e., gdbscm_create_breakpoint_x, finish | |
1086 | object creation by connecting the Scheme wrapper to the gdb object. | |
1087 | We ignore breakpoints created from gdb or python here, we create the | |
1088 | Scheme wrapper for those when there's a need to, e.g., | |
1089 | gdbscm_breakpoints. */ | |
1090 | ||
1091 | static void | |
1092 | bpscm_breakpoint_created (struct breakpoint *bp) | |
1093 | { | |
1094 | SCM bp_scm; | |
1095 | ||
1096 | if (gdbscm_is_false (pending_breakpoint_scm)) | |
1097 | return; | |
1098 | ||
1099 | /* Verify our caller error checked the user's request. */ | |
1100 | gdb_assert (bpscm_want_scm_wrapper_p (bp, 1)); | |
1101 | ||
1102 | bp_scm = pending_breakpoint_scm; | |
1103 | pending_breakpoint_scm = SCM_BOOL_F; | |
1104 | ||
1105 | bpscm_attach_scm_to_breakpoint (bp, bp_scm); | |
1106 | } | |
1107 | ||
1108 | /* Callback that is used when a breakpoint is deleted. This will | |
1109 | invalidate the corresponding Scheme object. */ | |
1110 | ||
1111 | static void | |
1112 | bpscm_breakpoint_deleted (struct breakpoint *b) | |
1113 | { | |
1114 | int num = b->number; | |
1115 | struct breakpoint *bp; | |
1116 | ||
1117 | /* TODO: Why the lookup? We have B. */ | |
1118 | ||
1119 | bp = get_breakpoint (num); | |
1120 | if (bp) | |
1121 | { | |
1122 | breakpoint_smob *bp_smob = bp->scm_bp_object; | |
1123 | ||
1124 | if (bp_smob) | |
1125 | { | |
1126 | bp_smob->bp = NULL; | |
16f691fb DE |
1127 | bp_smob->number = -1; |
1128 | bp_smob->stop = SCM_BOOL_F; | |
ed3ef339 DE |
1129 | scm_gc_unprotect_object (bp_smob->containing_scm); |
1130 | } | |
1131 | } | |
1132 | } | |
1133 | \f | |
1134 | /* Initialize the Scheme breakpoint code. */ | |
1135 | ||
1136 | static const scheme_integer_constant breakpoint_integer_constants[] = | |
1137 | { | |
1138 | { "BP_NONE", bp_none }, | |
1139 | { "BP_BREAKPOINT", bp_breakpoint }, | |
1140 | { "BP_WATCHPOINT", bp_watchpoint }, | |
1141 | { "BP_HARDWARE_WATCHPOINT", bp_hardware_watchpoint }, | |
1142 | { "BP_READ_WATCHPOINT", bp_read_watchpoint }, | |
1143 | { "BP_ACCESS_WATCHPOINT", bp_access_watchpoint }, | |
1144 | ||
1145 | { "WP_READ", hw_read }, | |
1146 | { "WP_WRITE", hw_write }, | |
1147 | { "WP_ACCESS", hw_access }, | |
1148 | ||
1149 | END_INTEGER_CONSTANTS | |
1150 | }; | |
1151 | ||
1152 | static const scheme_function breakpoint_functions[] = | |
1153 | { | |
72e02483 | 1154 | { "make-breakpoint", 1, 0, 1, as_a_scm_t_subr (gdbscm_make_breakpoint), |
ed3ef339 | 1155 | "\ |
16f691fb | 1156 | Create a GDB breakpoint object.\n\ |
ed3ef339 DE |
1157 | \n\ |
1158 | Arguments:\n\ | |
16f691fb DE |
1159 | location [#:type <type>] [#:wp-class <wp-class>] [#:internal <bool>]\n\ |
1160 | Returns:\n\ | |
1161 | <gdb:breakpoint object" }, | |
1162 | ||
72e02483 PA |
1163 | { "register-breakpoint!", 1, 0, 0, |
1164 | as_a_scm_t_subr (gdbscm_register_breakpoint_x), | |
16f691fb DE |
1165 | "\ |
1166 | Register a <gdb:breakpoint> object with GDB." }, | |
ed3ef339 | 1167 | |
72e02483 | 1168 | { "delete-breakpoint!", 1, 0, 0, as_a_scm_t_subr (gdbscm_delete_breakpoint_x), |
ed3ef339 DE |
1169 | "\ |
1170 | Delete the breakpoint from GDB." }, | |
1171 | ||
72e02483 | 1172 | { "breakpoints", 0, 0, 0, as_a_scm_t_subr (gdbscm_breakpoints), |
ed3ef339 DE |
1173 | "\ |
1174 | Return a list of all GDB breakpoints.\n\ | |
1175 | \n\ | |
1176 | Arguments: none" }, | |
1177 | ||
72e02483 | 1178 | { "breakpoint?", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_p), |
ed3ef339 DE |
1179 | "\ |
1180 | Return #t if the object is a <gdb:breakpoint> object." }, | |
1181 | ||
72e02483 | 1182 | { "breakpoint-valid?", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_valid_p), |
ed3ef339 DE |
1183 | "\ |
1184 | Return #t if the breakpoint has not been deleted from GDB." }, | |
1185 | ||
72e02483 | 1186 | { "breakpoint-number", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_number), |
ed3ef339 DE |
1187 | "\ |
1188 | Return the breakpoint's number." }, | |
1189 | ||
72e02483 | 1190 | { "breakpoint-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_type), |
ed3ef339 DE |
1191 | "\ |
1192 | Return the type of the breakpoint." }, | |
1193 | ||
72e02483 | 1194 | { "breakpoint-visible?", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_visible), |
ed3ef339 DE |
1195 | "\ |
1196 | Return #t if the breakpoint is visible to the user." }, | |
1197 | ||
72e02483 PA |
1198 | { "breakpoint-location", 1, 0, 0, |
1199 | as_a_scm_t_subr (gdbscm_breakpoint_location), | |
ed3ef339 DE |
1200 | "\ |
1201 | Return the location of the breakpoint as specified by the user." }, | |
1202 | ||
72e02483 PA |
1203 | { "breakpoint-expression", 1, 0, 0, |
1204 | as_a_scm_t_subr (gdbscm_breakpoint_expression), | |
ed3ef339 DE |
1205 | "\ |
1206 | Return the expression of the breakpoint as specified by the user.\n\ | |
1207 | Valid for watchpoints only, returns #f for non-watchpoints." }, | |
1208 | ||
72e02483 PA |
1209 | { "breakpoint-enabled?", 1, 0, 0, |
1210 | as_a_scm_t_subr (gdbscm_breakpoint_enabled_p), | |
ed3ef339 DE |
1211 | "\ |
1212 | Return #t if the breakpoint is enabled." }, | |
1213 | ||
72e02483 PA |
1214 | { "set-breakpoint-enabled!", 2, 0, 0, |
1215 | as_a_scm_t_subr (gdbscm_set_breakpoint_enabled_x), | |
ed3ef339 DE |
1216 | "\ |
1217 | Set the breakpoint's enabled state.\n\ | |
1218 | \n\ | |
5c6d4fb2 | 1219 | Arguments: <gdb:breakpoint> boolean" }, |
ed3ef339 | 1220 | |
72e02483 | 1221 | { "breakpoint-silent?", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_silent_p), |
ed3ef339 DE |
1222 | "\ |
1223 | Return #t if the breakpoint is silent." }, | |
1224 | ||
72e02483 PA |
1225 | { "set-breakpoint-silent!", 2, 0, 0, |
1226 | as_a_scm_t_subr (gdbscm_set_breakpoint_silent_x), | |
ed3ef339 DE |
1227 | "\ |
1228 | Set the breakpoint's silent state.\n\ | |
1229 | \n\ | |
1230 | Arguments: <gdb:breakpoint> boolean" }, | |
1231 | ||
72e02483 PA |
1232 | { "breakpoint-ignore-count", 1, 0, 0, |
1233 | as_a_scm_t_subr (gdbscm_breakpoint_ignore_count), | |
ed3ef339 DE |
1234 | "\ |
1235 | Return the breakpoint's \"ignore\" count." }, | |
1236 | ||
1237 | { "set-breakpoint-ignore-count!", 2, 0, 0, | |
72e02483 | 1238 | as_a_scm_t_subr (gdbscm_set_breakpoint_ignore_count_x), |
ed3ef339 DE |
1239 | "\ |
1240 | Set the breakpoint's \"ignore\" count.\n\ | |
1241 | \n\ | |
1242 | Arguments: <gdb:breakpoint> count" }, | |
1243 | ||
72e02483 PA |
1244 | { "breakpoint-hit-count", 1, 0, 0, |
1245 | as_a_scm_t_subr (gdbscm_breakpoint_hit_count), | |
ed3ef339 DE |
1246 | "\ |
1247 | Return the breakpoint's \"hit\" count." }, | |
1248 | ||
72e02483 PA |
1249 | { "set-breakpoint-hit-count!", 2, 0, 0, |
1250 | as_a_scm_t_subr (gdbscm_set_breakpoint_hit_count_x), | |
ed3ef339 DE |
1251 | "\ |
1252 | Set the breakpoint's \"hit\" count. The value must be zero.\n\ | |
1253 | \n\ | |
1254 | Arguments: <gdb:breakpoint> 0" }, | |
1255 | ||
72e02483 | 1256 | { "breakpoint-thread", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_thread), |
ed3ef339 | 1257 | "\ |
5d5658a1 | 1258 | Return the breakpoint's global thread id or #f if there isn't one." }, |
ed3ef339 | 1259 | |
72e02483 PA |
1260 | { "set-breakpoint-thread!", 2, 0, 0, |
1261 | as_a_scm_t_subr (gdbscm_set_breakpoint_thread_x), | |
ed3ef339 | 1262 | "\ |
5d5658a1 | 1263 | Set the global thread id for this breakpoint.\n\ |
ed3ef339 | 1264 | \n\ |
5d5658a1 | 1265 | Arguments: <gdb:breakpoint> global-thread-id" }, |
ed3ef339 | 1266 | |
72e02483 | 1267 | { "breakpoint-task", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_task), |
ed3ef339 DE |
1268 | "\ |
1269 | Return the breakpoint's Ada task-id or #f if there isn't one." }, | |
1270 | ||
72e02483 PA |
1271 | { "set-breakpoint-task!", 2, 0, 0, |
1272 | as_a_scm_t_subr (gdbscm_set_breakpoint_task_x), | |
ed3ef339 DE |
1273 | "\ |
1274 | Set the breakpoint's Ada task-id.\n\ | |
1275 | \n\ | |
1276 | Arguments: <gdb:breakpoint> task-id" }, | |
1277 | ||
72e02483 PA |
1278 | { "breakpoint-condition", 1, 0, 0, |
1279 | as_a_scm_t_subr (gdbscm_breakpoint_condition), | |
ed3ef339 DE |
1280 | "\ |
1281 | Return the breakpoint's condition as specified by the user.\n\ | |
1282 | Return #f if there isn't one." }, | |
1283 | ||
72e02483 PA |
1284 | { "set-breakpoint-condition!", 2, 0, 0, |
1285 | as_a_scm_t_subr (gdbscm_set_breakpoint_condition_x), | |
ed3ef339 DE |
1286 | "\ |
1287 | Set the breakpoint's condition.\n\ | |
1288 | \n\ | |
1289 | Arguments: <gdb:breakpoint> condition\n\ | |
1290 | condition: a string" }, | |
1291 | ||
72e02483 | 1292 | { "breakpoint-stop", 1, 0, 0, as_a_scm_t_subr (gdbscm_breakpoint_stop), |
ed3ef339 DE |
1293 | "\ |
1294 | Return the breakpoint's stop predicate.\n\ | |
1295 | Return #f if there isn't one." }, | |
1296 | ||
72e02483 PA |
1297 | { "set-breakpoint-stop!", 2, 0, 0, |
1298 | as_a_scm_t_subr (gdbscm_set_breakpoint_stop_x), | |
ed3ef339 DE |
1299 | "\ |
1300 | Set the breakpoint's stop predicate.\n\ | |
1301 | \n\ | |
1302 | Arguments: <gdb:breakpoint> procedure\n\ | |
1303 | procedure: A procedure of one argument, the breakpoint.\n\ | |
1304 | Its result is true if program execution should stop." }, | |
1305 | ||
72e02483 PA |
1306 | { "breakpoint-commands", 1, 0, 0, |
1307 | as_a_scm_t_subr (gdbscm_breakpoint_commands), | |
ed3ef339 DE |
1308 | "\ |
1309 | Return the breakpoint's commands." }, | |
1310 | ||
1311 | END_FUNCTIONS | |
1312 | }; | |
1313 | ||
1314 | void | |
1315 | gdbscm_initialize_breakpoints (void) | |
1316 | { | |
1317 | breakpoint_smob_tag | |
1318 | = gdbscm_make_smob_type (breakpoint_smob_name, sizeof (breakpoint_smob)); | |
ed3ef339 DE |
1319 | scm_set_smob_free (breakpoint_smob_tag, bpscm_free_breakpoint_smob); |
1320 | scm_set_smob_print (breakpoint_smob_tag, bpscm_print_breakpoint_smob); | |
1321 | ||
c90e7d63 SM |
1322 | gdb::observers::breakpoint_created.attach (bpscm_breakpoint_created, |
1323 | "scm-breakpoint"); | |
1324 | gdb::observers::breakpoint_deleted.attach (bpscm_breakpoint_deleted, | |
1325 | "scm-breakpoint"); | |
ed3ef339 DE |
1326 | |
1327 | gdbscm_define_integer_constants (breakpoint_integer_constants, 1); | |
1328 | gdbscm_define_functions (breakpoint_functions, 1); | |
1329 | ||
1330 | type_keyword = scm_from_latin1_keyword ("type"); | |
1331 | wp_class_keyword = scm_from_latin1_keyword ("wp-class"); | |
1332 | internal_keyword = scm_from_latin1_keyword ("internal"); | |
1333 | } |