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adc36818 PM |
1 | /* Python interface to breakpoints |
2 | ||
42a4f53d | 3 | Copyright (C) 2008-2019 Free Software Foundation, Inc. |
adc36818 PM |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "value.h" | |
adc36818 | 22 | #include "python-internal.h" |
49a8461d | 23 | #include "python.h" |
adc36818 PM |
24 | #include "charset.h" |
25 | #include "breakpoint.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "gdbthread.h" | |
76727919 | 28 | #include "observable.h" |
adc36818 PM |
29 | #include "cli/cli-script.h" |
30 | #include "ada-lang.h" | |
7371cf6d PM |
31 | #include "arch-utils.h" |
32 | #include "language.h" | |
f00aae0f | 33 | #include "location.h" |
dac790e1 | 34 | #include "py-event.h" |
824cc835 | 35 | #include "linespec.h" |
adc36818 | 36 | |
adc36818 PM |
37 | /* Number of live breakpoints. */ |
38 | static int bppy_live; | |
39 | ||
40 | /* Variables used to pass information between the Breakpoint | |
41 | constructor and the breakpoint-created hook function. */ | |
4cb0213d | 42 | gdbpy_breakpoint_object *bppy_pending_object; |
adc36818 | 43 | |
7371cf6d | 44 | /* Function that is called when a Python condition is evaluated. */ |
a121b7c1 | 45 | static const char stop_func[] = "stop"; |
7371cf6d | 46 | |
adc36818 PM |
47 | /* This is used to initialize various gdb.bp_* constants. */ |
48 | struct pybp_code | |
49 | { | |
50 | /* The name. */ | |
51 | const char *name; | |
52 | /* The code. */ | |
e81b7af8 | 53 | int code; |
adc36818 PM |
54 | }; |
55 | ||
56 | /* Entries related to the type of user set breakpoints. */ | |
57 | static struct pybp_code pybp_codes[] = | |
58 | { | |
59 | { "BP_NONE", bp_none}, | |
60 | { "BP_BREAKPOINT", bp_breakpoint}, | |
61 | { "BP_WATCHPOINT", bp_watchpoint}, | |
62 | { "BP_HARDWARE_WATCHPOINT", bp_hardware_watchpoint}, | |
63 | { "BP_READ_WATCHPOINT", bp_read_watchpoint}, | |
64 | { "BP_ACCESS_WATCHPOINT", bp_access_watchpoint}, | |
65 | {NULL} /* Sentinel. */ | |
66 | }; | |
67 | ||
68 | /* Entries related to the type of watchpoint. */ | |
69 | static struct pybp_code pybp_watch_types[] = | |
70 | { | |
71 | { "WP_READ", hw_read}, | |
72 | { "WP_WRITE", hw_write}, | |
73 | { "WP_ACCESS", hw_access}, | |
74 | {NULL} /* Sentinel. */ | |
75 | }; | |
76 | ||
adc36818 PM |
77 | /* Python function which checks the validity of a breakpoint object. */ |
78 | static PyObject * | |
79 | bppy_is_valid (PyObject *self, PyObject *args) | |
80 | { | |
4cb0213d | 81 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
82 | |
83 | if (self_bp->bp) | |
84 | Py_RETURN_TRUE; | |
85 | Py_RETURN_FALSE; | |
86 | } | |
87 | ||
88 | /* Python function to test whether or not the breakpoint is enabled. */ | |
89 | static PyObject * | |
90 | bppy_get_enabled (PyObject *self, void *closure) | |
91 | { | |
4cb0213d | 92 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
93 | |
94 | BPPY_REQUIRE_VALID (self_bp); | |
95 | if (! self_bp->bp) | |
96 | Py_RETURN_FALSE; | |
97 | if (self_bp->bp->enable_state == bp_enabled) | |
98 | Py_RETURN_TRUE; | |
99 | Py_RETURN_FALSE; | |
100 | } | |
101 | ||
102 | /* Python function to test whether or not the breakpoint is silent. */ | |
103 | static PyObject * | |
104 | bppy_get_silent (PyObject *self, void *closure) | |
105 | { | |
4cb0213d | 106 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
107 | |
108 | BPPY_REQUIRE_VALID (self_bp); | |
109 | if (self_bp->bp->silent) | |
110 | Py_RETURN_TRUE; | |
111 | Py_RETURN_FALSE; | |
112 | } | |
113 | ||
114 | /* Python function to set the enabled state of a breakpoint. */ | |
115 | static int | |
116 | bppy_set_enabled (PyObject *self, PyObject *newvalue, void *closure) | |
117 | { | |
4cb0213d | 118 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
119 | int cmp; |
120 | ||
121 | BPPY_SET_REQUIRE_VALID (self_bp); | |
122 | ||
123 | if (newvalue == NULL) | |
124 | { | |
256458bc | 125 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
126 | _("Cannot delete `enabled' attribute.")); |
127 | ||
128 | return -1; | |
129 | } | |
130 | else if (! PyBool_Check (newvalue)) | |
131 | { | |
132 | PyErr_SetString (PyExc_TypeError, | |
133 | _("The value of `enabled' must be a boolean.")); | |
134 | return -1; | |
135 | } | |
136 | ||
137 | cmp = PyObject_IsTrue (newvalue); | |
138 | if (cmp < 0) | |
139 | return -1; | |
76dce0be | 140 | |
a70b8144 | 141 | try |
76dce0be PM |
142 | { |
143 | if (cmp == 1) | |
144 | enable_breakpoint (self_bp->bp); | |
145 | else | |
146 | disable_breakpoint (self_bp->bp); | |
147 | } | |
230d2906 | 148 | catch (const gdb_exception &except) |
492d29ea PA |
149 | { |
150 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
151 | } | |
76dce0be | 152 | |
adc36818 PM |
153 | return 0; |
154 | } | |
155 | ||
156 | /* Python function to set the 'silent' state of a breakpoint. */ | |
157 | static int | |
158 | bppy_set_silent (PyObject *self, PyObject *newvalue, void *closure) | |
159 | { | |
4cb0213d | 160 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
161 | int cmp; |
162 | ||
163 | BPPY_SET_REQUIRE_VALID (self_bp); | |
164 | ||
165 | if (newvalue == NULL) | |
166 | { | |
256458bc | 167 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
168 | _("Cannot delete `silent' attribute.")); |
169 | return -1; | |
170 | } | |
171 | else if (! PyBool_Check (newvalue)) | |
172 | { | |
173 | PyErr_SetString (PyExc_TypeError, | |
174 | _("The value of `silent' must be a boolean.")); | |
175 | return -1; | |
176 | } | |
177 | ||
178 | cmp = PyObject_IsTrue (newvalue); | |
179 | if (cmp < 0) | |
180 | return -1; | |
181 | else | |
45a43567 | 182 | breakpoint_set_silent (self_bp->bp, cmp); |
adc36818 PM |
183 | |
184 | return 0; | |
185 | } | |
186 | ||
187 | /* Python function to set the thread of a breakpoint. */ | |
188 | static int | |
189 | bppy_set_thread (PyObject *self, PyObject *newvalue, void *closure) | |
190 | { | |
4cb0213d | 191 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
74aedc46 | 192 | long id; |
adc36818 PM |
193 | |
194 | BPPY_SET_REQUIRE_VALID (self_bp); | |
195 | ||
196 | if (newvalue == NULL) | |
197 | { | |
256458bc | 198 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
199 | _("Cannot delete `thread' attribute.")); |
200 | return -1; | |
201 | } | |
202 | else if (PyInt_Check (newvalue)) | |
203 | { | |
74aedc46 TT |
204 | if (! gdb_py_int_as_long (newvalue, &id)) |
205 | return -1; | |
206 | ||
5d5658a1 | 207 | if (!valid_global_thread_id (id)) |
adc36818 | 208 | { |
256458bc | 209 | PyErr_SetString (PyExc_RuntimeError, |
adc36818 PM |
210 | _("Invalid thread ID.")); |
211 | return -1; | |
212 | } | |
213 | } | |
214 | else if (newvalue == Py_None) | |
215 | id = -1; | |
216 | else | |
217 | { | |
218 | PyErr_SetString (PyExc_TypeError, | |
219 | _("The value of `thread' must be an integer or None.")); | |
220 | return -1; | |
221 | } | |
222 | ||
45a43567 | 223 | breakpoint_set_thread (self_bp->bp, id); |
adc36818 PM |
224 | |
225 | return 0; | |
226 | } | |
227 | ||
228 | /* Python function to set the (Ada) task of a breakpoint. */ | |
229 | static int | |
230 | bppy_set_task (PyObject *self, PyObject *newvalue, void *closure) | |
231 | { | |
4cb0213d | 232 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
74aedc46 | 233 | long id; |
76dce0be | 234 | int valid_id = 0; |
adc36818 PM |
235 | |
236 | BPPY_SET_REQUIRE_VALID (self_bp); | |
237 | ||
238 | if (newvalue == NULL) | |
239 | { | |
256458bc | 240 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
241 | _("Cannot delete `task' attribute.")); |
242 | return -1; | |
243 | } | |
244 | else if (PyInt_Check (newvalue)) | |
245 | { | |
74aedc46 TT |
246 | if (! gdb_py_int_as_long (newvalue, &id)) |
247 | return -1; | |
248 | ||
a70b8144 | 249 | try |
76dce0be PM |
250 | { |
251 | valid_id = valid_task_id (id); | |
252 | } | |
230d2906 | 253 | catch (const gdb_exception &except) |
492d29ea PA |
254 | { |
255 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
256 | } | |
76dce0be PM |
257 | |
258 | if (! valid_id) | |
adc36818 | 259 | { |
256458bc | 260 | PyErr_SetString (PyExc_RuntimeError, |
adc36818 PM |
261 | _("Invalid task ID.")); |
262 | return -1; | |
263 | } | |
264 | } | |
265 | else if (newvalue == Py_None) | |
266 | id = 0; | |
267 | else | |
268 | { | |
269 | PyErr_SetString (PyExc_TypeError, | |
270 | _("The value of `task' must be an integer or None.")); | |
271 | return -1; | |
272 | } | |
273 | ||
45a43567 | 274 | breakpoint_set_task (self_bp->bp, id); |
adc36818 PM |
275 | |
276 | return 0; | |
277 | } | |
278 | ||
94b6973e PM |
279 | /* Python function which deletes the underlying GDB breakpoint. This |
280 | triggers the breakpoint_deleted observer which will call | |
281 | gdbpy_breakpoint_deleted; that function cleans up the Python | |
282 | sections. */ | |
283 | ||
284 | static PyObject * | |
285 | bppy_delete_breakpoint (PyObject *self, PyObject *args) | |
286 | { | |
4cb0213d | 287 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
94b6973e PM |
288 | |
289 | BPPY_REQUIRE_VALID (self_bp); | |
290 | ||
a70b8144 | 291 | try |
76dce0be PM |
292 | { |
293 | delete_breakpoint (self_bp->bp); | |
294 | } | |
230d2906 | 295 | catch (const gdb_exception &except) |
492d29ea PA |
296 | { |
297 | GDB_PY_HANDLE_EXCEPTION (except); | |
298 | } | |
94b6973e PM |
299 | |
300 | Py_RETURN_NONE; | |
301 | } | |
302 | ||
adc36818 PM |
303 | |
304 | /* Python function to set the ignore count of a breakpoint. */ | |
305 | static int | |
306 | bppy_set_ignore_count (PyObject *self, PyObject *newvalue, void *closure) | |
307 | { | |
4cb0213d | 308 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
309 | long value; |
310 | ||
311 | BPPY_SET_REQUIRE_VALID (self_bp); | |
312 | ||
313 | if (newvalue == NULL) | |
314 | { | |
315 | PyErr_SetString (PyExc_TypeError, | |
316 | _("Cannot delete `ignore_count' attribute.")); | |
317 | return -1; | |
318 | } | |
319 | else if (! PyInt_Check (newvalue)) | |
320 | { | |
321 | PyErr_SetString (PyExc_TypeError, | |
322 | _("The value of `ignore_count' must be an integer.")); | |
323 | return -1; | |
324 | } | |
325 | ||
74aedc46 TT |
326 | if (! gdb_py_int_as_long (newvalue, &value)) |
327 | return -1; | |
328 | ||
adc36818 PM |
329 | if (value < 0) |
330 | value = 0; | |
5d9c5995 | 331 | |
a70b8144 | 332 | try |
5d9c5995 PM |
333 | { |
334 | set_ignore_count (self_bp->number, (int) value, 0); | |
335 | } | |
230d2906 | 336 | catch (const gdb_exception &except) |
492d29ea PA |
337 | { |
338 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
339 | } | |
adc36818 PM |
340 | |
341 | return 0; | |
342 | } | |
343 | ||
344 | /* Python function to set the hit count of a breakpoint. */ | |
345 | static int | |
346 | bppy_set_hit_count (PyObject *self, PyObject *newvalue, void *closure) | |
347 | { | |
4cb0213d | 348 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
349 | |
350 | BPPY_SET_REQUIRE_VALID (self_bp); | |
351 | ||
352 | if (newvalue == NULL) | |
353 | { | |
256458bc | 354 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
355 | _("Cannot delete `hit_count' attribute.")); |
356 | return -1; | |
357 | } | |
74aedc46 | 358 | else |
adc36818 | 359 | { |
74aedc46 TT |
360 | long value; |
361 | ||
362 | if (! gdb_py_int_as_long (newvalue, &value)) | |
363 | return -1; | |
364 | ||
365 | if (value != 0) | |
366 | { | |
367 | PyErr_SetString (PyExc_AttributeError, | |
368 | _("The value of `hit_count' must be zero.")); | |
369 | return -1; | |
370 | } | |
adc36818 PM |
371 | } |
372 | ||
373 | self_bp->bp->hit_count = 0; | |
374 | ||
375 | return 0; | |
376 | } | |
377 | ||
378 | /* Python function to get the location of a breakpoint. */ | |
379 | static PyObject * | |
380 | bppy_get_location (PyObject *self, void *closure) | |
381 | { | |
4cb0213d | 382 | gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
383 | |
384 | BPPY_REQUIRE_VALID (obj); | |
385 | ||
386 | if (obj->bp->type != bp_breakpoint) | |
387 | Py_RETURN_NONE; | |
388 | ||
cb1e4e32 | 389 | const char *str = event_location_to_string (obj->bp->location.get ()); |
adc36818 PM |
390 | if (! str) |
391 | str = ""; | |
833d985d | 392 | return host_string_to_python_string (str).release (); |
adc36818 PM |
393 | } |
394 | ||
395 | /* Python function to get the breakpoint expression. */ | |
396 | static PyObject * | |
397 | bppy_get_expression (PyObject *self, void *closure) | |
398 | { | |
a121b7c1 | 399 | const char *str; |
4cb0213d | 400 | gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self; |
3a5c3e22 | 401 | struct watchpoint *wp; |
adc36818 PM |
402 | |
403 | BPPY_REQUIRE_VALID (obj); | |
404 | ||
3a5c3e22 | 405 | if (!is_watchpoint (obj->bp)) |
adc36818 PM |
406 | Py_RETURN_NONE; |
407 | ||
3a5c3e22 PA |
408 | wp = (struct watchpoint *) obj->bp; |
409 | ||
410 | str = wp->exp_string; | |
adc36818 PM |
411 | if (! str) |
412 | str = ""; | |
413 | ||
833d985d | 414 | return host_string_to_python_string (str).release (); |
adc36818 PM |
415 | } |
416 | ||
417 | /* Python function to get the condition expression of a breakpoint. */ | |
418 | static PyObject * | |
419 | bppy_get_condition (PyObject *self, void *closure) | |
420 | { | |
421 | char *str; | |
4cb0213d | 422 | gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
423 | |
424 | BPPY_REQUIRE_VALID (obj); | |
425 | ||
426 | str = obj->bp->cond_string; | |
427 | if (! str) | |
428 | Py_RETURN_NONE; | |
429 | ||
833d985d | 430 | return host_string_to_python_string (str).release (); |
adc36818 PM |
431 | } |
432 | ||
8dc78533 JK |
433 | /* Returns 0 on success. Returns -1 on error, with a python exception set. |
434 | */ | |
435 | ||
adc36818 PM |
436 | static int |
437 | bppy_set_condition (PyObject *self, PyObject *newvalue, void *closure) | |
438 | { | |
9b972014 TT |
439 | gdb::unique_xmalloc_ptr<char> exp_holder; |
440 | const char *exp = NULL; | |
4cb0213d | 441 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
cc06b668 | 442 | struct gdb_exception except; |
adc36818 PM |
443 | |
444 | BPPY_SET_REQUIRE_VALID (self_bp); | |
445 | ||
446 | if (newvalue == NULL) | |
447 | { | |
256458bc | 448 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
449 | _("Cannot delete `condition' attribute.")); |
450 | return -1; | |
451 | } | |
452 | else if (newvalue == Py_None) | |
453 | exp = ""; | |
454 | else | |
455 | { | |
9b972014 TT |
456 | exp_holder = python_string_to_host_string (newvalue); |
457 | if (exp_holder == NULL) | |
adc36818 | 458 | return -1; |
9b972014 | 459 | exp = exp_holder.get (); |
adc36818 PM |
460 | } |
461 | ||
a70b8144 | 462 | try |
adc36818 PM |
463 | { |
464 | set_breakpoint_condition (self_bp->bp, exp, 0); | |
465 | } | |
94aeb44b | 466 | catch (gdb_exception &ex) |
492d29ea | 467 | { |
94aeb44b | 468 | except = std::move (ex); |
492d29ea | 469 | } |
f3be5b64 | 470 | |
adc36818 PM |
471 | GDB_PY_SET_HANDLE_EXCEPTION (except); |
472 | ||
473 | return 0; | |
474 | } | |
475 | ||
476 | /* Python function to get the commands attached to a breakpoint. */ | |
477 | static PyObject * | |
478 | bppy_get_commands (PyObject *self, void *closure) | |
479 | { | |
4cb0213d | 480 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 | 481 | struct breakpoint *bp = self_bp->bp; |
adc36818 PM |
482 | |
483 | BPPY_REQUIRE_VALID (self_bp); | |
484 | ||
485 | if (! self_bp->bp->commands) | |
486 | Py_RETURN_NONE; | |
487 | ||
d7e74731 | 488 | string_file stb; |
adc36818 | 489 | |
d7e74731 | 490 | current_uiout->redirect (&stb); |
a70b8144 | 491 | try |
adc36818 | 492 | { |
79a45e25 | 493 | print_command_lines (current_uiout, breakpoint_commands (bp), 0); |
adc36818 | 494 | } |
230d2906 | 495 | catch (const gdb_exception &except) |
b862ce75 | 496 | { |
112e8700 | 497 | current_uiout->redirect (NULL); |
f3300387 TT |
498 | gdbpy_convert_exception (except); |
499 | return NULL; | |
b862ce75 | 500 | } |
adc36818 | 501 | |
112e8700 | 502 | current_uiout->redirect (NULL); |
833d985d | 503 | return host_string_to_python_string (stb.c_str ()).release (); |
adc36818 PM |
504 | } |
505 | ||
a913fffb TT |
506 | /* Set the commands attached to a breakpoint. Returns 0 on success. |
507 | Returns -1 on error, with a python exception set. */ | |
508 | static int | |
509 | bppy_set_commands (PyObject *self, PyObject *newvalue, void *closure) | |
510 | { | |
511 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; | |
cc06b668 | 512 | struct gdb_exception except; |
a913fffb TT |
513 | |
514 | BPPY_SET_REQUIRE_VALID (self_bp); | |
515 | ||
516 | gdb::unique_xmalloc_ptr<char> commands | |
517 | (python_string_to_host_string (newvalue)); | |
518 | if (commands == nullptr) | |
519 | return -1; | |
520 | ||
a70b8144 | 521 | try |
a913fffb TT |
522 | { |
523 | bool first = true; | |
524 | char *save_ptr = nullptr; | |
525 | auto reader | |
526 | = [&] () | |
527 | { | |
528 | const char *result = strtok_r (first ? commands.get () : nullptr, | |
529 | "\n", &save_ptr); | |
530 | first = false; | |
531 | return result; | |
532 | }; | |
533 | ||
534 | counted_command_line lines = read_command_lines_1 (reader, 1, nullptr); | |
535 | breakpoint_set_commands (self_bp->bp, std::move (lines)); | |
536 | } | |
94aeb44b | 537 | catch (gdb_exception &ex) |
a913fffb | 538 | { |
94aeb44b | 539 | except = std::move (ex); |
a913fffb | 540 | } |
a913fffb TT |
541 | |
542 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
adc36818 PM |
547 | /* Python function to get the breakpoint type. */ |
548 | static PyObject * | |
549 | bppy_get_type (PyObject *self, void *closure) | |
550 | { | |
4cb0213d | 551 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
552 | |
553 | BPPY_REQUIRE_VALID (self_bp); | |
554 | ||
555 | return PyInt_FromLong (self_bp->bp->type); | |
556 | } | |
557 | ||
84f4c1fe PM |
558 | /* Python function to get the visibility of the breakpoint. */ |
559 | ||
560 | static PyObject * | |
561 | bppy_get_visibility (PyObject *self, void *closure) | |
562 | { | |
4cb0213d | 563 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
84f4c1fe PM |
564 | |
565 | BPPY_REQUIRE_VALID (self_bp); | |
566 | ||
43684a7b TT |
567 | if (user_breakpoint_p (self_bp->bp)) |
568 | Py_RETURN_TRUE; | |
84f4c1fe | 569 | |
43684a7b | 570 | Py_RETURN_FALSE; |
84f4c1fe PM |
571 | } |
572 | ||
f76c27b5 PM |
573 | /* Python function to determine if the breakpoint is a temporary |
574 | breakpoint. */ | |
575 | ||
576 | static PyObject * | |
577 | bppy_get_temporary (PyObject *self, void *closure) | |
578 | { | |
4cb0213d | 579 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
f76c27b5 PM |
580 | |
581 | BPPY_REQUIRE_VALID (self_bp); | |
582 | ||
583 | if (self_bp->bp->disposition == disp_del | |
584 | || self_bp->bp->disposition == disp_del_at_next_stop) | |
585 | Py_RETURN_TRUE; | |
586 | ||
587 | Py_RETURN_FALSE; | |
588 | } | |
589 | ||
93daf339 TT |
590 | /* Python function to determine if the breakpoint is a pending |
591 | breakpoint. */ | |
592 | ||
593 | static PyObject * | |
594 | bppy_get_pending (PyObject *self, void *closure) | |
595 | { | |
596 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; | |
597 | ||
598 | BPPY_REQUIRE_VALID (self_bp); | |
599 | ||
600 | if (is_watchpoint (self_bp->bp)) | |
601 | Py_RETURN_FALSE; | |
602 | if (pending_breakpoint_p (self_bp->bp)) | |
603 | Py_RETURN_TRUE; | |
604 | ||
605 | Py_RETURN_FALSE; | |
606 | } | |
607 | ||
adc36818 PM |
608 | /* Python function to get the breakpoint's number. */ |
609 | static PyObject * | |
610 | bppy_get_number (PyObject *self, void *closure) | |
611 | { | |
4cb0213d | 612 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
613 | |
614 | BPPY_REQUIRE_VALID (self_bp); | |
615 | ||
616 | return PyInt_FromLong (self_bp->number); | |
617 | } | |
618 | ||
619 | /* Python function to get the breakpoint's thread ID. */ | |
620 | static PyObject * | |
621 | bppy_get_thread (PyObject *self, void *closure) | |
622 | { | |
4cb0213d | 623 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
624 | |
625 | BPPY_REQUIRE_VALID (self_bp); | |
626 | ||
627 | if (self_bp->bp->thread == -1) | |
628 | Py_RETURN_NONE; | |
629 | ||
630 | return PyInt_FromLong (self_bp->bp->thread); | |
631 | } | |
632 | ||
633 | /* Python function to get the breakpoint's task ID (in Ada). */ | |
634 | static PyObject * | |
635 | bppy_get_task (PyObject *self, void *closure) | |
636 | { | |
4cb0213d | 637 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
638 | |
639 | BPPY_REQUIRE_VALID (self_bp); | |
640 | ||
641 | if (self_bp->bp->task == 0) | |
642 | Py_RETURN_NONE; | |
643 | ||
644 | return PyInt_FromLong (self_bp->bp->task); | |
645 | } | |
646 | ||
647 | /* Python function to get the breakpoint's hit count. */ | |
648 | static PyObject * | |
649 | bppy_get_hit_count (PyObject *self, void *closure) | |
650 | { | |
4cb0213d | 651 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
652 | |
653 | BPPY_REQUIRE_VALID (self_bp); | |
654 | ||
655 | return PyInt_FromLong (self_bp->bp->hit_count); | |
656 | } | |
657 | ||
658 | /* Python function to get the breakpoint's ignore count. */ | |
659 | static PyObject * | |
660 | bppy_get_ignore_count (PyObject *self, void *closure) | |
661 | { | |
4cb0213d | 662 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
663 | |
664 | BPPY_REQUIRE_VALID (self_bp); | |
665 | ||
666 | return PyInt_FromLong (self_bp->bp->ignore_count); | |
667 | } | |
668 | ||
824cc835 PM |
669 | /* Internal function to validate the Python parameters/keywords |
670 | provided to bppy_init. */ | |
671 | ||
672 | static int | |
673 | bppy_init_validate_args (const char *spec, char *source, | |
674 | char *function, char *label, | |
675 | char *line, enum bptype type) | |
676 | { | |
677 | /* If spec is defined, ensure that none of the explicit location | |
678 | keywords are also defined. */ | |
679 | if (spec != NULL) | |
680 | { | |
681 | if (source != NULL || function != NULL || label != NULL || line != NULL) | |
682 | { | |
683 | PyErr_SetString (PyExc_RuntimeError, | |
684 | _("Breakpoints specified with spec cannot " | |
685 | "have source, function, label or line defined.")); | |
686 | return -1; | |
687 | } | |
688 | } | |
689 | else | |
690 | { | |
691 | /* If spec isn't defined, ensure that the user is not trying to | |
692 | define a watchpoint with an explicit location. */ | |
693 | if (type == bp_watchpoint) | |
694 | { | |
695 | PyErr_SetString (PyExc_RuntimeError, | |
696 | _("Watchpoints cannot be set by explicit " | |
697 | "location parameters.")); | |
698 | return -1; | |
699 | } | |
700 | else | |
701 | { | |
702 | /* Otherwise, ensure some explicit locations are defined. */ | |
703 | if (source == NULL && function == NULL && label == NULL | |
704 | && line == NULL) | |
705 | { | |
706 | PyErr_SetString (PyExc_RuntimeError, | |
707 | _("Neither spec nor explicit location set.")); | |
708 | return -1; | |
709 | } | |
710 | /* Finally, if source is specified, ensure that line, label | |
711 | or function are specified too. */ | |
712 | if (source != NULL && function == NULL && label == NULL | |
713 | && line == NULL) | |
714 | { | |
715 | PyErr_SetString (PyExc_RuntimeError, | |
716 | _("Specifying a source must also include a " | |
717 | "line, label or function.")); | |
718 | return -1; | |
719 | } | |
720 | } | |
721 | } | |
722 | return 1; | |
723 | } | |
724 | ||
adc36818 | 725 | /* Python function to create a new breakpoint. */ |
7371cf6d PM |
726 | static int |
727 | bppy_init (PyObject *self, PyObject *args, PyObject *kwargs) | |
adc36818 | 728 | { |
2adadf51 | 729 | static const char *keywords[] = { "spec", "type", "wp_class", "internal", |
824cc835 | 730 | "temporary","source", "function", |
b89641ba | 731 | "label", "line", "qualified", NULL }; |
824cc835 PM |
732 | const char *spec = NULL; |
733 | enum bptype type = bp_breakpoint; | |
adc36818 | 734 | int access_type = hw_write; |
84f4c1fe | 735 | PyObject *internal = NULL; |
f76c27b5 | 736 | PyObject *temporary = NULL; |
824cc835 | 737 | PyObject *lineobj = NULL;; |
84f4c1fe | 738 | int internal_bp = 0; |
f76c27b5 | 739 | int temporary_bp = 0; |
824cc835 PM |
740 | gdb::unique_xmalloc_ptr<char> line; |
741 | char *label = NULL; | |
742 | char *source = NULL; | |
743 | char *function = NULL; | |
8e557e52 | 744 | PyObject * qualified = NULL; |
adc36818 | 745 | |
8e557e52 | 746 | if (!gdb_PyArg_ParseTupleAndKeywords (args, kwargs, "|siiOOsssOO", keywords, |
2adadf51 | 747 | &spec, &type, &access_type, |
824cc835 PM |
748 | &internal, |
749 | &temporary, &source, | |
b89641ba SM |
750 | &function, &label, &lineobj, |
751 | &qualified)) | |
7371cf6d | 752 | return -1; |
adc36818 | 753 | |
824cc835 PM |
754 | |
755 | if (lineobj != NULL) | |
756 | { | |
757 | if (PyInt_Check (lineobj)) | |
758 | line.reset (xstrprintf ("%ld", PyInt_AsLong (lineobj))); | |
759 | else if (PyString_Check (lineobj)) | |
760 | line = python_string_to_host_string (lineobj); | |
761 | else | |
762 | { | |
763 | PyErr_SetString (PyExc_RuntimeError, | |
764 | _("Line keyword should be an integer or a string. ")); | |
765 | return -1; | |
766 | } | |
767 | } | |
768 | ||
84f4c1fe PM |
769 | if (internal) |
770 | { | |
771 | internal_bp = PyObject_IsTrue (internal); | |
772 | if (internal_bp == -1) | |
7371cf6d | 773 | return -1; |
84f4c1fe PM |
774 | } |
775 | ||
f76c27b5 PM |
776 | if (temporary != NULL) |
777 | { | |
778 | temporary_bp = PyObject_IsTrue (temporary); | |
779 | if (temporary_bp == -1) | |
780 | return -1; | |
781 | } | |
782 | ||
824cc835 PM |
783 | if (bppy_init_validate_args (spec, source, function, label, line.get (), |
784 | type) == -1) | |
785 | return -1; | |
786 | ||
4cb0213d | 787 | bppy_pending_object = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
788 | bppy_pending_object->number = -1; |
789 | bppy_pending_object->bp = NULL; | |
256458bc | 790 | |
a70b8144 | 791 | try |
adc36818 PM |
792 | { |
793 | switch (type) | |
794 | { | |
795 | case bp_breakpoint: | |
796 | { | |
824cc835 | 797 | event_location_up location; |
b89641ba | 798 | symbol_name_match_type func_name_match_type |
8e557e52 | 799 | = (qualified != NULL && PyObject_IsTrue (qualified) |
b89641ba SM |
800 | ? symbol_name_match_type::FULL |
801 | : symbol_name_match_type::WILD); | |
824cc835 PM |
802 | |
803 | if (spec != NULL) | |
804 | { | |
805 | gdb::unique_xmalloc_ptr<char> | |
806 | copy_holder (xstrdup (skip_spaces (spec))); | |
807 | const char *copy = copy_holder.get (); | |
808 | ||
809 | location = string_to_event_location (©, | |
b89641ba SM |
810 | current_language, |
811 | func_name_match_type); | |
824cc835 PM |
812 | } |
813 | else | |
814 | { | |
815 | struct explicit_location explicit_loc; | |
816 | ||
817 | initialize_explicit_location (&explicit_loc); | |
818 | explicit_loc.source_filename = source; | |
819 | explicit_loc.function_name = function; | |
820 | explicit_loc.label_name = label; | |
821 | ||
822 | if (line != NULL) | |
823 | explicit_loc.line_offset = | |
824 | linespec_parse_line_offset (line.get ()); | |
825 | ||
b89641ba SM |
826 | explicit_loc.func_name_match_type = func_name_match_type; |
827 | ||
824cc835 PM |
828 | location = new_explicit_location (&explicit_loc); |
829 | } | |
830 | ||
adc36818 | 831 | create_breakpoint (python_gdbarch, |
ffc2605c | 832 | location.get (), NULL, -1, NULL, |
adc36818 | 833 | 0, |
f76c27b5 | 834 | temporary_bp, bp_breakpoint, |
adc36818 PM |
835 | 0, |
836 | AUTO_BOOLEAN_TRUE, | |
348d480f | 837 | &bkpt_breakpoint_ops, |
44f238bb | 838 | 0, 1, internal_bp, 0); |
adc36818 PM |
839 | break; |
840 | } | |
824cc835 | 841 | case bp_watchpoint: |
adc36818 | 842 | { |
824cc835 PM |
843 | gdb::unique_xmalloc_ptr<char> |
844 | copy_holder (xstrdup (skip_spaces (spec))); | |
845 | char *copy = copy_holder.get (); | |
846 | ||
adc36818 | 847 | if (access_type == hw_write) |
ddd49eee | 848 | watch_command_wrapper (copy, 0, internal_bp); |
adc36818 | 849 | else if (access_type == hw_access) |
ddd49eee | 850 | awatch_command_wrapper (copy, 0, internal_bp); |
adc36818 | 851 | else if (access_type == hw_read) |
ddd49eee | 852 | rwatch_command_wrapper (copy, 0, internal_bp); |
adc36818 PM |
853 | else |
854 | error(_("Cannot understand watchpoint access type.")); | |
855 | break; | |
856 | } | |
857 | default: | |
858 | error(_("Do not understand breakpoint type to set.")); | |
859 | } | |
860 | } | |
230d2906 | 861 | catch (const gdb_exception &except) |
adc36818 | 862 | { |
f4952523 | 863 | bppy_pending_object = NULL; |
ec9c2750 | 864 | gdbpy_convert_exception (except); |
7371cf6d | 865 | return -1; |
adc36818 PM |
866 | } |
867 | ||
4cb0213d | 868 | BPPY_SET_REQUIRE_VALID ((gdbpy_breakpoint_object *) self); |
7371cf6d | 869 | return 0; |
adc36818 PM |
870 | } |
871 | ||
872 | \f | |
873 | ||
95da600f CB |
874 | static bool |
875 | build_bp_list (struct breakpoint *b, PyObject *list) | |
84f4c1fe | 876 | { |
50389644 | 877 | PyObject *bp = (PyObject *) b->py_bp_object; |
84f4c1fe PM |
878 | int iserr = 0; |
879 | ||
880 | /* Not all breakpoints will have a companion Python object. | |
881 | Only breakpoints that were created via bppy_new, or | |
882 | breakpoints that were created externally and are tracked by | |
883 | the Python Scripting API. */ | |
884 | if (bp) | |
885 | iserr = PyList_Append (list, bp); | |
886 | ||
887 | if (iserr == -1) | |
95da600f | 888 | return true; |
84f4c1fe | 889 | |
95da600f | 890 | return false; |
84f4c1fe PM |
891 | } |
892 | ||
adc36818 PM |
893 | /* Static function to return a tuple holding all breakpoints. */ |
894 | ||
895 | PyObject * | |
896 | gdbpy_breakpoints (PyObject *self, PyObject *args) | |
897 | { | |
adc36818 | 898 | if (bppy_live == 0) |
1957f6b8 | 899 | return PyTuple_New (0); |
adc36818 | 900 | |
7780f186 | 901 | gdbpy_ref<> list (PyList_New (0)); |
bf2a52fa | 902 | if (list == NULL) |
84f4c1fe | 903 | return NULL; |
d59b6f6c | 904 | |
1957f6b8 | 905 | /* If iterate_over_breakpoints returns non NULL it signals an error |
84f4c1fe PM |
906 | condition. In that case abandon building the list and return |
907 | NULL. */ | |
95da600f CB |
908 | auto callback = [&] (breakpoint *bp) |
909 | { | |
910 | return build_bp_list(bp, list.get ()); | |
911 | }; | |
912 | if (iterate_over_breakpoints (callback) != NULL) | |
bf2a52fa | 913 | return NULL; |
27ca1a5b | 914 | |
bf2a52fa | 915 | return PyList_AsTuple (list.get ()); |
adc36818 PM |
916 | } |
917 | ||
7371cf6d PM |
918 | /* Call the "stop" method (if implemented) in the breakpoint |
919 | class. If the method returns True, the inferior will be | |
920 | stopped at the breakpoint. Otherwise the inferior will be | |
921 | allowed to continue. */ | |
922 | ||
6dddc817 DE |
923 | enum ext_lang_bp_stop |
924 | gdbpy_breakpoint_cond_says_stop (const struct extension_language_defn *extlang, | |
925 | struct breakpoint *b) | |
7371cf6d | 926 | { |
6dddc817 DE |
927 | int stop; |
928 | struct gdbpy_breakpoint_object *bp_obj = b->py_bp_object; | |
7371cf6d | 929 | PyObject *py_bp = (PyObject *) bp_obj; |
6dddc817 | 930 | struct gdbarch *garch; |
6dddc817 DE |
931 | |
932 | if (bp_obj == NULL) | |
933 | return EXT_LANG_BP_STOP_UNSET; | |
934 | ||
935 | stop = -1; | |
936 | garch = b->gdbarch ? b->gdbarch : get_current_arch (); | |
de2dc875 TT |
937 | |
938 | gdbpy_enter enter_py (garch, current_language); | |
7371cf6d | 939 | |
cc72b2a2 KP |
940 | if (bp_obj->is_finish_bp) |
941 | bpfinishpy_pre_stop_hook (bp_obj); | |
942 | ||
7371cf6d PM |
943 | if (PyObject_HasAttrString (py_bp, stop_func)) |
944 | { | |
7780f186 | 945 | gdbpy_ref<> result (PyObject_CallMethod (py_bp, stop_func, NULL)); |
7371cf6d | 946 | |
6dddc817 | 947 | stop = 1; |
64081434 | 948 | if (result != NULL) |
7371cf6d | 949 | { |
64081434 | 950 | int evaluate = PyObject_IsTrue (result.get ()); |
7371cf6d PM |
951 | |
952 | if (evaluate == -1) | |
953 | gdbpy_print_stack (); | |
954 | ||
955 | /* If the "stop" function returns False that means | |
956 | the Python breakpoint wants GDB to continue. */ | |
957 | if (! evaluate) | |
958 | stop = 0; | |
7371cf6d PM |
959 | } |
960 | else | |
961 | gdbpy_print_stack (); | |
962 | } | |
cc72b2a2 KP |
963 | |
964 | if (bp_obj->is_finish_bp) | |
965 | bpfinishpy_post_stop_hook (bp_obj); | |
966 | ||
6dddc817 DE |
967 | if (stop < 0) |
968 | return EXT_LANG_BP_STOP_UNSET; | |
969 | return stop ? EXT_LANG_BP_STOP_YES : EXT_LANG_BP_STOP_NO; | |
7371cf6d PM |
970 | } |
971 | ||
972 | /* Checks if the "stop" method exists in this breakpoint. | |
973 | Used by condition_command to ensure mutual exclusion of breakpoint | |
974 | conditions. */ | |
975 | ||
976 | int | |
6dddc817 DE |
977 | gdbpy_breakpoint_has_cond (const struct extension_language_defn *extlang, |
978 | struct breakpoint *b) | |
7371cf6d | 979 | { |
6dddc817 DE |
980 | PyObject *py_bp; |
981 | struct gdbarch *garch; | |
256458bc | 982 | |
6dddc817 DE |
983 | if (b->py_bp_object == NULL) |
984 | return 0; | |
7371cf6d | 985 | |
6dddc817 DE |
986 | py_bp = (PyObject *) b->py_bp_object; |
987 | garch = b->gdbarch ? b->gdbarch : get_current_arch (); | |
7371cf6d | 988 | |
de2dc875 TT |
989 | gdbpy_enter enter_py (garch, current_language); |
990 | return PyObject_HasAttrString (py_bp, stop_func); | |
7371cf6d PM |
991 | } |
992 | ||
adc36818 PM |
993 | \f |
994 | ||
995 | /* Event callback functions. */ | |
996 | ||
997 | /* Callback that is used when a breakpoint is created. This function | |
998 | will create a new Python breakpoint object. */ | |
999 | static void | |
8d3788bd | 1000 | gdbpy_breakpoint_created (struct breakpoint *bp) |
adc36818 | 1001 | { |
4cb0213d | 1002 | gdbpy_breakpoint_object *newbp; |
adc36818 | 1003 | |
43684a7b | 1004 | if (!user_breakpoint_p (bp) && bppy_pending_object == NULL) |
84f4c1fe PM |
1005 | return; |
1006 | ||
256458bc | 1007 | if (bp->type != bp_breakpoint |
adc36818 | 1008 | && bp->type != bp_watchpoint |
256458bc | 1009 | && bp->type != bp_hardware_watchpoint |
adc36818 PM |
1010 | && bp->type != bp_read_watchpoint |
1011 | && bp->type != bp_access_watchpoint) | |
1012 | return; | |
1013 | ||
25ce02ee TT |
1014 | struct gdbarch *garch = bp->gdbarch ? bp->gdbarch : get_current_arch (); |
1015 | gdbpy_enter enter_py (garch, current_language); | |
adc36818 PM |
1016 | |
1017 | if (bppy_pending_object) | |
1018 | { | |
1019 | newbp = bppy_pending_object; | |
bd454f8b | 1020 | Py_INCREF (newbp); |
adc36818 PM |
1021 | bppy_pending_object = NULL; |
1022 | } | |
1023 | else | |
4cb0213d | 1024 | newbp = PyObject_New (gdbpy_breakpoint_object, &breakpoint_object_type); |
adc36818 PM |
1025 | if (newbp) |
1026 | { | |
8d3788bd | 1027 | newbp->number = bp->number; |
adc36818 | 1028 | newbp->bp = bp; |
50389644 | 1029 | newbp->bp->py_bp_object = newbp; |
cc72b2a2 | 1030 | newbp->is_finish_bp = 0; |
84f4c1fe PM |
1031 | ++bppy_live; |
1032 | } | |
1033 | else | |
1034 | { | |
1035 | PyErr_SetString (PyExc_RuntimeError, | |
1036 | _("Error while creating breakpoint from GDB.")); | |
1037 | gdbpy_print_stack (); | |
adc36818 | 1038 | } |
adc36818 | 1039 | |
dac790e1 TT |
1040 | if (!evregpy_no_listeners_p (gdb_py_events.breakpoint_created)) |
1041 | { | |
dac790e1 TT |
1042 | if (evpy_emit_event ((PyObject *) newbp, |
1043 | gdb_py_events.breakpoint_created) < 0) | |
1044 | gdbpy_print_stack (); | |
1045 | } | |
adc36818 PM |
1046 | } |
1047 | ||
1048 | /* Callback that is used when a breakpoint is deleted. This will | |
1049 | invalidate the corresponding Python object. */ | |
1050 | static void | |
8d3788bd | 1051 | gdbpy_breakpoint_deleted (struct breakpoint *b) |
adc36818 | 1052 | { |
8d3788bd | 1053 | int num = b->number; |
84f4c1fe | 1054 | struct breakpoint *bp = NULL; |
adc36818 | 1055 | |
84f4c1fe | 1056 | bp = get_breakpoint (num); |
d930d06e | 1057 | if (bp) |
adc36818 | 1058 | { |
25ce02ee TT |
1059 | struct gdbarch *garch = bp->gdbarch ? bp->gdbarch : get_current_arch (); |
1060 | gdbpy_enter enter_py (garch, current_language); | |
1061 | ||
88b6faea TT |
1062 | gdbpy_ref<gdbpy_breakpoint_object> bp_obj (bp->py_bp_object); |
1063 | if (bp_obj != NULL) | |
d930d06e | 1064 | { |
dac790e1 TT |
1065 | if (!evregpy_no_listeners_p (gdb_py_events.breakpoint_deleted)) |
1066 | { | |
88b6faea | 1067 | if (evpy_emit_event ((PyObject *) bp_obj.get (), |
dac790e1 TT |
1068 | gdb_py_events.breakpoint_deleted) < 0) |
1069 | gdbpy_print_stack (); | |
1070 | } | |
1071 | ||
d930d06e TT |
1072 | bp_obj->bp = NULL; |
1073 | --bppy_live; | |
d930d06e | 1074 | } |
adc36818 | 1075 | } |
adc36818 PM |
1076 | } |
1077 | ||
dac790e1 TT |
1078 | /* Callback that is used when a breakpoint is modified. */ |
1079 | ||
1080 | static void | |
1081 | gdbpy_breakpoint_modified (struct breakpoint *b) | |
1082 | { | |
1083 | int num = b->number; | |
dac790e1 | 1084 | struct breakpoint *bp = NULL; |
dac790e1 | 1085 | |
dac790e1 TT |
1086 | bp = get_breakpoint (num); |
1087 | if (bp) | |
1088 | { | |
25ce02ee TT |
1089 | struct gdbarch *garch = bp->gdbarch ? bp->gdbarch : get_current_arch (); |
1090 | gdbpy_enter enter_py (garch, current_language); | |
1091 | ||
dac790e1 TT |
1092 | PyObject *bp_obj = (PyObject *) bp->py_bp_object; |
1093 | if (bp_obj) | |
1094 | { | |
1095 | if (!evregpy_no_listeners_p (gdb_py_events.breakpoint_modified)) | |
1096 | { | |
dac790e1 TT |
1097 | if (evpy_emit_event (bp_obj, |
1098 | gdb_py_events.breakpoint_modified) < 0) | |
1099 | gdbpy_print_stack (); | |
1100 | } | |
1101 | } | |
1102 | } | |
dac790e1 TT |
1103 | } |
1104 | ||
adc36818 PM |
1105 | \f |
1106 | ||
1107 | /* Initialize the Python breakpoint code. */ | |
999633ed | 1108 | int |
adc36818 PM |
1109 | gdbpy_initialize_breakpoints (void) |
1110 | { | |
1111 | int i; | |
1112 | ||
6a1b1664 | 1113 | breakpoint_object_type.tp_new = PyType_GenericNew; |
adc36818 | 1114 | if (PyType_Ready (&breakpoint_object_type) < 0) |
999633ed | 1115 | return -1; |
adc36818 | 1116 | |
aa36459a TT |
1117 | if (gdb_pymodule_addobject (gdb_module, "Breakpoint", |
1118 | (PyObject *) &breakpoint_object_type) < 0) | |
999633ed | 1119 | return -1; |
adc36818 | 1120 | |
76727919 TT |
1121 | gdb::observers::breakpoint_created.attach (gdbpy_breakpoint_created); |
1122 | gdb::observers::breakpoint_deleted.attach (gdbpy_breakpoint_deleted); | |
1123 | gdb::observers::breakpoint_modified.attach (gdbpy_breakpoint_modified); | |
adc36818 PM |
1124 | |
1125 | /* Add breakpoint types constants. */ | |
1126 | for (i = 0; pybp_codes[i].name; ++i) | |
1127 | { | |
6c28e44a | 1128 | if (PyModule_AddIntConstant (gdb_module, pybp_codes[i].name, |
adc36818 | 1129 | pybp_codes[i].code) < 0) |
999633ed | 1130 | return -1; |
adc36818 PM |
1131 | } |
1132 | ||
1133 | /* Add watchpoint types constants. */ | |
1134 | for (i = 0; pybp_watch_types[i].name; ++i) | |
1135 | { | |
6c28e44a | 1136 | if (PyModule_AddIntConstant (gdb_module, pybp_watch_types[i].name, |
adc36818 | 1137 | pybp_watch_types[i].code) < 0) |
999633ed | 1138 | return -1; |
adc36818 PM |
1139 | } |
1140 | ||
999633ed | 1141 | return 0; |
adc36818 PM |
1142 | } |
1143 | ||
1144 | \f | |
1145 | ||
7371cf6d PM |
1146 | /* Helper function that overrides this Python object's |
1147 | PyObject_GenericSetAttr to allow extra validation of the attribute | |
1148 | being set. */ | |
1149 | ||
256458bc | 1150 | static int |
7371cf6d PM |
1151 | local_setattro (PyObject *self, PyObject *name, PyObject *v) |
1152 | { | |
256458bc | 1153 | gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self; |
9b972014 | 1154 | gdb::unique_xmalloc_ptr<char> attr (python_string_to_host_string (name)); |
256458bc | 1155 | |
7371cf6d PM |
1156 | if (attr == NULL) |
1157 | return -1; | |
256458bc | 1158 | |
7371cf6d | 1159 | /* If the attribute trying to be set is the "stop" method, |
6dddc817 DE |
1160 | but we already have a condition set in the CLI or other extension |
1161 | language, disallow this operation. */ | |
9b972014 | 1162 | if (strcmp (attr.get (), stop_func) == 0) |
7371cf6d | 1163 | { |
6dddc817 DE |
1164 | const struct extension_language_defn *extlang = NULL; |
1165 | ||
1166 | if (obj->bp->cond_string != NULL) | |
1167 | extlang = get_ext_lang_defn (EXT_LANG_GDB); | |
1168 | if (extlang == NULL) | |
1169 | extlang = get_breakpoint_cond_ext_lang (obj->bp, EXT_LANG_PYTHON); | |
1170 | if (extlang != NULL) | |
1171 | { | |
7f968c89 TT |
1172 | std::string error_text |
1173 | = string_printf (_("Only one stop condition allowed. There is" | |
1174 | " currently a %s stop condition defined for" | |
1175 | " this breakpoint."), | |
1176 | ext_lang_capitalized_name (extlang)); | |
1177 | PyErr_SetString (PyExc_RuntimeError, error_text.c_str ()); | |
6dddc817 DE |
1178 | return -1; |
1179 | } | |
7371cf6d | 1180 | } |
256458bc | 1181 | |
8833fbf0 | 1182 | return PyObject_GenericSetAttr (self, name, v); |
7371cf6d PM |
1183 | } |
1184 | ||
0d1f4ceb | 1185 | static gdb_PyGetSetDef breakpoint_object_getset[] = { |
adc36818 PM |
1186 | { "enabled", bppy_get_enabled, bppy_set_enabled, |
1187 | "Boolean telling whether the breakpoint is enabled.", NULL }, | |
1188 | { "silent", bppy_get_silent, bppy_set_silent, | |
1189 | "Boolean telling whether the breakpoint is silent.", NULL }, | |
1190 | { "thread", bppy_get_thread, bppy_set_thread, | |
1191 | "Thread ID for the breakpoint.\n\ | |
1192 | If the value is a thread ID (integer), then this is a thread-specific breakpoint.\n\ | |
1193 | If the value is None, then this breakpoint is not thread-specific.\n\ | |
1194 | No other type of value can be used.", NULL }, | |
1195 | { "task", bppy_get_task, bppy_set_task, | |
1196 | "Thread ID for the breakpoint.\n\ | |
1197 | If the value is a task ID (integer), then this is an Ada task-specific breakpoint.\n\ | |
1198 | If the value is None, then this breakpoint is not task-specific.\n\ | |
1199 | No other type of value can be used.", NULL }, | |
1200 | { "ignore_count", bppy_get_ignore_count, bppy_set_ignore_count, | |
1201 | "Number of times this breakpoint should be automatically continued.", | |
1202 | NULL }, | |
1203 | { "number", bppy_get_number, NULL, | |
1204 | "Breakpoint's number assigned by GDB.", NULL }, | |
1205 | { "hit_count", bppy_get_hit_count, bppy_set_hit_count, | |
1206 | "Number of times the breakpoint has been hit.\n\ | |
1207 | Can be set to zero to clear the count. No other value is valid\n\ | |
1208 | when setting this property.", NULL }, | |
1209 | { "location", bppy_get_location, NULL, | |
1210 | "Location of the breakpoint, as specified by the user.", NULL}, | |
1211 | { "expression", bppy_get_expression, NULL, | |
1212 | "Expression of the breakpoint, as specified by the user.", NULL}, | |
1213 | { "condition", bppy_get_condition, bppy_set_condition, | |
1214 | "Condition of the breakpoint, as specified by the user,\ | |
1215 | or None if no condition set."}, | |
a913fffb | 1216 | { "commands", bppy_get_commands, bppy_set_commands, |
adc36818 PM |
1217 | "Commands of the breakpoint, as specified by the user."}, |
1218 | { "type", bppy_get_type, NULL, | |
1219 | "Type of breakpoint."}, | |
84f4c1fe PM |
1220 | { "visible", bppy_get_visibility, NULL, |
1221 | "Whether the breakpoint is visible to the user."}, | |
f76c27b5 PM |
1222 | { "temporary", bppy_get_temporary, NULL, |
1223 | "Whether this breakpoint is a temporary breakpoint."}, | |
93daf339 TT |
1224 | { "pending", bppy_get_pending, NULL, |
1225 | "Whether this breakpoint is a pending breakpoint."}, | |
adc36818 PM |
1226 | { NULL } /* Sentinel. */ |
1227 | }; | |
1228 | ||
1229 | static PyMethodDef breakpoint_object_methods[] = | |
1230 | { | |
1231 | { "is_valid", bppy_is_valid, METH_NOARGS, | |
1232 | "Return true if this breakpoint is valid, false if not." }, | |
94b6973e PM |
1233 | { "delete", bppy_delete_breakpoint, METH_NOARGS, |
1234 | "Delete the underlying GDB breakpoint." }, | |
adc36818 PM |
1235 | { NULL } /* Sentinel. */ |
1236 | }; | |
1237 | ||
cc72b2a2 | 1238 | PyTypeObject breakpoint_object_type = |
adc36818 | 1239 | { |
9a27f2c6 | 1240 | PyVarObject_HEAD_INIT (NULL, 0) |
adc36818 | 1241 | "gdb.Breakpoint", /*tp_name*/ |
4cb0213d | 1242 | sizeof (gdbpy_breakpoint_object), /*tp_basicsize*/ |
adc36818 PM |
1243 | 0, /*tp_itemsize*/ |
1244 | 0, /*tp_dealloc*/ | |
1245 | 0, /*tp_print*/ | |
1246 | 0, /*tp_getattr*/ | |
1247 | 0, /*tp_setattr*/ | |
1248 | 0, /*tp_compare*/ | |
1249 | 0, /*tp_repr*/ | |
1250 | 0, /*tp_as_number*/ | |
1251 | 0, /*tp_as_sequence*/ | |
1252 | 0, /*tp_as_mapping*/ | |
1253 | 0, /*tp_hash */ | |
1254 | 0, /*tp_call*/ | |
1255 | 0, /*tp_str*/ | |
1256 | 0, /*tp_getattro*/ | |
7371cf6d | 1257 | (setattrofunc)local_setattro, /*tp_setattro */ |
adc36818 | 1258 | 0, /*tp_as_buffer*/ |
7371cf6d | 1259 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ |
adc36818 PM |
1260 | "GDB breakpoint object", /* tp_doc */ |
1261 | 0, /* tp_traverse */ | |
1262 | 0, /* tp_clear */ | |
1263 | 0, /* tp_richcompare */ | |
1264 | 0, /* tp_weaklistoffset */ | |
1265 | 0, /* tp_iter */ | |
1266 | 0, /* tp_iternext */ | |
1267 | breakpoint_object_methods, /* tp_methods */ | |
1268 | 0, /* tp_members */ | |
7371cf6d PM |
1269 | breakpoint_object_getset, /* tp_getset */ |
1270 | 0, /* tp_base */ | |
1271 | 0, /* tp_dict */ | |
1272 | 0, /* tp_descr_get */ | |
1273 | 0, /* tp_descr_set */ | |
1274 | 0, /* tp_dictoffset */ | |
1275 | bppy_init, /* tp_init */ | |
1276 | 0, /* tp_alloc */ | |
adc36818 | 1277 | }; |