Commit | Line | Data |
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adc36818 PM |
1 | /* Python interface to breakpoints |
2 | ||
88b9d363 | 3 | Copyright (C) 2008-2022 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 | |
75140e3b AB |
37 | /* Debugging of Python breakpoints. */ |
38 | ||
39 | static bool pybp_debug; | |
40 | ||
41 | /* Implementation of "show debug py-breakpoint". */ | |
42 | ||
43 | static void | |
44 | show_pybp_debug (struct ui_file *file, int from_tty, | |
45 | struct cmd_list_element *c, const char *value) | |
46 | { | |
47 | fprintf_filtered (file, _("Python breakpoint debugging is %s.\n"), value); | |
48 | } | |
49 | ||
50 | /* Print a "py-breakpoint" debug statement. */ | |
51 | ||
52 | #define pybp_debug_printf(fmt, ...) \ | |
53 | debug_prefixed_printf_cond (pybp_debug, "py-breakpoint", fmt, ##__VA_ARGS__) | |
54 | ||
55 | /* Print a "py-breakpoint" enter/exit debug statements. */ | |
56 | ||
57 | #define PYBP_SCOPED_DEBUG_ENTER_EXIT \ | |
58 | scoped_debug_enter_exit (pybp_debug, "py-breakpoint") | |
59 | ||
adc36818 PM |
60 | /* Number of live breakpoints. */ |
61 | static int bppy_live; | |
62 | ||
63 | /* Variables used to pass information between the Breakpoint | |
64 | constructor and the breakpoint-created hook function. */ | |
4cb0213d | 65 | gdbpy_breakpoint_object *bppy_pending_object; |
adc36818 | 66 | |
7371cf6d | 67 | /* Function that is called when a Python condition is evaluated. */ |
a121b7c1 | 68 | static const char stop_func[] = "stop"; |
7371cf6d | 69 | |
adc36818 PM |
70 | /* This is used to initialize various gdb.bp_* constants. */ |
71 | struct pybp_code | |
72 | { | |
73 | /* The name. */ | |
74 | const char *name; | |
75 | /* The code. */ | |
e81b7af8 | 76 | int code; |
adc36818 PM |
77 | }; |
78 | ||
79 | /* Entries related to the type of user set breakpoints. */ | |
80 | static struct pybp_code pybp_codes[] = | |
81 | { | |
82 | { "BP_NONE", bp_none}, | |
83 | { "BP_BREAKPOINT", bp_breakpoint}, | |
325d39e4 | 84 | { "BP_HARDWARE_BREAKPOINT", bp_hardware_breakpoint}, |
adc36818 PM |
85 | { "BP_WATCHPOINT", bp_watchpoint}, |
86 | { "BP_HARDWARE_WATCHPOINT", bp_hardware_watchpoint}, | |
87 | { "BP_READ_WATCHPOINT", bp_read_watchpoint}, | |
88 | { "BP_ACCESS_WATCHPOINT", bp_access_watchpoint}, | |
6b95f5ad | 89 | { "BP_CATCHPOINT", bp_catchpoint}, |
adc36818 PM |
90 | {NULL} /* Sentinel. */ |
91 | }; | |
92 | ||
93 | /* Entries related to the type of watchpoint. */ | |
94 | static struct pybp_code pybp_watch_types[] = | |
95 | { | |
96 | { "WP_READ", hw_read}, | |
97 | { "WP_WRITE", hw_write}, | |
98 | { "WP_ACCESS", hw_access}, | |
99 | {NULL} /* Sentinel. */ | |
100 | }; | |
101 | ||
adc36818 PM |
102 | /* Python function which checks the validity of a breakpoint object. */ |
103 | static PyObject * | |
104 | bppy_is_valid (PyObject *self, PyObject *args) | |
105 | { | |
4cb0213d | 106 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
107 | |
108 | if (self_bp->bp) | |
109 | Py_RETURN_TRUE; | |
110 | Py_RETURN_FALSE; | |
111 | } | |
112 | ||
113 | /* Python function to test whether or not the breakpoint is enabled. */ | |
114 | static PyObject * | |
115 | bppy_get_enabled (PyObject *self, void *closure) | |
116 | { | |
4cb0213d | 117 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
118 | |
119 | BPPY_REQUIRE_VALID (self_bp); | |
120 | if (! self_bp->bp) | |
121 | Py_RETURN_FALSE; | |
122 | if (self_bp->bp->enable_state == bp_enabled) | |
123 | Py_RETURN_TRUE; | |
124 | Py_RETURN_FALSE; | |
125 | } | |
126 | ||
127 | /* Python function to test whether or not the breakpoint is silent. */ | |
128 | static PyObject * | |
129 | bppy_get_silent (PyObject *self, void *closure) | |
130 | { | |
4cb0213d | 131 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
132 | |
133 | BPPY_REQUIRE_VALID (self_bp); | |
134 | if (self_bp->bp->silent) | |
135 | Py_RETURN_TRUE; | |
136 | Py_RETURN_FALSE; | |
137 | } | |
138 | ||
139 | /* Python function to set the enabled state of a breakpoint. */ | |
140 | static int | |
141 | bppy_set_enabled (PyObject *self, PyObject *newvalue, void *closure) | |
142 | { | |
4cb0213d | 143 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
144 | int cmp; |
145 | ||
146 | BPPY_SET_REQUIRE_VALID (self_bp); | |
147 | ||
148 | if (newvalue == NULL) | |
149 | { | |
256458bc | 150 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
151 | _("Cannot delete `enabled' attribute.")); |
152 | ||
153 | return -1; | |
154 | } | |
155 | else if (! PyBool_Check (newvalue)) | |
156 | { | |
157 | PyErr_SetString (PyExc_TypeError, | |
158 | _("The value of `enabled' must be a boolean.")); | |
159 | return -1; | |
160 | } | |
161 | ||
162 | cmp = PyObject_IsTrue (newvalue); | |
163 | if (cmp < 0) | |
164 | return -1; | |
76dce0be | 165 | |
a70b8144 | 166 | try |
76dce0be PM |
167 | { |
168 | if (cmp == 1) | |
169 | enable_breakpoint (self_bp->bp); | |
170 | else | |
171 | disable_breakpoint (self_bp->bp); | |
172 | } | |
230d2906 | 173 | catch (const gdb_exception &except) |
492d29ea PA |
174 | { |
175 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
176 | } | |
76dce0be | 177 | |
adc36818 PM |
178 | return 0; |
179 | } | |
180 | ||
181 | /* Python function to set the 'silent' state of a breakpoint. */ | |
182 | static int | |
183 | bppy_set_silent (PyObject *self, PyObject *newvalue, void *closure) | |
184 | { | |
4cb0213d | 185 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
186 | int cmp; |
187 | ||
188 | BPPY_SET_REQUIRE_VALID (self_bp); | |
189 | ||
190 | if (newvalue == NULL) | |
191 | { | |
256458bc | 192 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
193 | _("Cannot delete `silent' attribute.")); |
194 | return -1; | |
195 | } | |
196 | else if (! PyBool_Check (newvalue)) | |
197 | { | |
198 | PyErr_SetString (PyExc_TypeError, | |
199 | _("The value of `silent' must be a boolean.")); | |
200 | return -1; | |
201 | } | |
202 | ||
203 | cmp = PyObject_IsTrue (newvalue); | |
204 | if (cmp < 0) | |
205 | return -1; | |
206 | else | |
45a43567 | 207 | breakpoint_set_silent (self_bp->bp, cmp); |
adc36818 PM |
208 | |
209 | return 0; | |
210 | } | |
211 | ||
212 | /* Python function to set the thread of a breakpoint. */ | |
213 | static int | |
214 | bppy_set_thread (PyObject *self, PyObject *newvalue, void *closure) | |
215 | { | |
4cb0213d | 216 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
74aedc46 | 217 | long id; |
adc36818 PM |
218 | |
219 | BPPY_SET_REQUIRE_VALID (self_bp); | |
220 | ||
221 | if (newvalue == NULL) | |
222 | { | |
256458bc | 223 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
224 | _("Cannot delete `thread' attribute.")); |
225 | return -1; | |
226 | } | |
227 | else if (PyInt_Check (newvalue)) | |
228 | { | |
74aedc46 TT |
229 | if (! gdb_py_int_as_long (newvalue, &id)) |
230 | return -1; | |
231 | ||
5d5658a1 | 232 | if (!valid_global_thread_id (id)) |
adc36818 | 233 | { |
256458bc | 234 | PyErr_SetString (PyExc_RuntimeError, |
adc36818 PM |
235 | _("Invalid thread ID.")); |
236 | return -1; | |
237 | } | |
238 | } | |
239 | else if (newvalue == Py_None) | |
240 | id = -1; | |
241 | else | |
242 | { | |
243 | PyErr_SetString (PyExc_TypeError, | |
244 | _("The value of `thread' must be an integer or None.")); | |
245 | return -1; | |
246 | } | |
247 | ||
45a43567 | 248 | breakpoint_set_thread (self_bp->bp, id); |
adc36818 PM |
249 | |
250 | return 0; | |
251 | } | |
252 | ||
253 | /* Python function to set the (Ada) task of a breakpoint. */ | |
254 | static int | |
255 | bppy_set_task (PyObject *self, PyObject *newvalue, void *closure) | |
256 | { | |
4cb0213d | 257 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
74aedc46 | 258 | long id; |
76dce0be | 259 | int valid_id = 0; |
adc36818 PM |
260 | |
261 | BPPY_SET_REQUIRE_VALID (self_bp); | |
262 | ||
263 | if (newvalue == NULL) | |
264 | { | |
256458bc | 265 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
266 | _("Cannot delete `task' attribute.")); |
267 | return -1; | |
268 | } | |
269 | else if (PyInt_Check (newvalue)) | |
270 | { | |
74aedc46 TT |
271 | if (! gdb_py_int_as_long (newvalue, &id)) |
272 | return -1; | |
273 | ||
a70b8144 | 274 | try |
76dce0be PM |
275 | { |
276 | valid_id = valid_task_id (id); | |
277 | } | |
230d2906 | 278 | catch (const gdb_exception &except) |
492d29ea PA |
279 | { |
280 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
281 | } | |
76dce0be PM |
282 | |
283 | if (! valid_id) | |
adc36818 | 284 | { |
256458bc | 285 | PyErr_SetString (PyExc_RuntimeError, |
adc36818 PM |
286 | _("Invalid task ID.")); |
287 | return -1; | |
288 | } | |
289 | } | |
290 | else if (newvalue == Py_None) | |
291 | id = 0; | |
292 | else | |
293 | { | |
294 | PyErr_SetString (PyExc_TypeError, | |
295 | _("The value of `task' must be an integer or None.")); | |
296 | return -1; | |
297 | } | |
298 | ||
45a43567 | 299 | breakpoint_set_task (self_bp->bp, id); |
adc36818 PM |
300 | |
301 | return 0; | |
302 | } | |
303 | ||
94b6973e PM |
304 | /* Python function which deletes the underlying GDB breakpoint. This |
305 | triggers the breakpoint_deleted observer which will call | |
306 | gdbpy_breakpoint_deleted; that function cleans up the Python | |
307 | sections. */ | |
308 | ||
309 | static PyObject * | |
310 | bppy_delete_breakpoint (PyObject *self, PyObject *args) | |
311 | { | |
4cb0213d | 312 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
94b6973e PM |
313 | |
314 | BPPY_REQUIRE_VALID (self_bp); | |
315 | ||
a70b8144 | 316 | try |
76dce0be PM |
317 | { |
318 | delete_breakpoint (self_bp->bp); | |
319 | } | |
230d2906 | 320 | catch (const gdb_exception &except) |
492d29ea PA |
321 | { |
322 | GDB_PY_HANDLE_EXCEPTION (except); | |
323 | } | |
94b6973e PM |
324 | |
325 | Py_RETURN_NONE; | |
326 | } | |
327 | ||
adc36818 PM |
328 | |
329 | /* Python function to set the ignore count of a breakpoint. */ | |
330 | static int | |
331 | bppy_set_ignore_count (PyObject *self, PyObject *newvalue, void *closure) | |
332 | { | |
4cb0213d | 333 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
334 | long value; |
335 | ||
336 | BPPY_SET_REQUIRE_VALID (self_bp); | |
337 | ||
338 | if (newvalue == NULL) | |
339 | { | |
340 | PyErr_SetString (PyExc_TypeError, | |
341 | _("Cannot delete `ignore_count' attribute.")); | |
342 | return -1; | |
343 | } | |
344 | else if (! PyInt_Check (newvalue)) | |
345 | { | |
346 | PyErr_SetString (PyExc_TypeError, | |
347 | _("The value of `ignore_count' must be an integer.")); | |
348 | return -1; | |
349 | } | |
350 | ||
74aedc46 TT |
351 | if (! gdb_py_int_as_long (newvalue, &value)) |
352 | return -1; | |
353 | ||
adc36818 PM |
354 | if (value < 0) |
355 | value = 0; | |
5d9c5995 | 356 | |
a70b8144 | 357 | try |
5d9c5995 PM |
358 | { |
359 | set_ignore_count (self_bp->number, (int) value, 0); | |
360 | } | |
230d2906 | 361 | catch (const gdb_exception &except) |
492d29ea PA |
362 | { |
363 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
364 | } | |
adc36818 PM |
365 | |
366 | return 0; | |
367 | } | |
368 | ||
369 | /* Python function to set the hit count of a breakpoint. */ | |
370 | static int | |
371 | bppy_set_hit_count (PyObject *self, PyObject *newvalue, void *closure) | |
372 | { | |
4cb0213d | 373 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
374 | |
375 | BPPY_SET_REQUIRE_VALID (self_bp); | |
376 | ||
377 | if (newvalue == NULL) | |
378 | { | |
256458bc | 379 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
380 | _("Cannot delete `hit_count' attribute.")); |
381 | return -1; | |
382 | } | |
74aedc46 | 383 | else |
adc36818 | 384 | { |
74aedc46 TT |
385 | long value; |
386 | ||
387 | if (! gdb_py_int_as_long (newvalue, &value)) | |
388 | return -1; | |
389 | ||
390 | if (value != 0) | |
391 | { | |
392 | PyErr_SetString (PyExc_AttributeError, | |
393 | _("The value of `hit_count' must be zero.")); | |
394 | return -1; | |
395 | } | |
adc36818 PM |
396 | } |
397 | ||
398 | self_bp->bp->hit_count = 0; | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | /* Python function to get the location of a breakpoint. */ | |
404 | static PyObject * | |
405 | bppy_get_location (PyObject *self, void *closure) | |
406 | { | |
4cb0213d | 407 | gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
408 | |
409 | BPPY_REQUIRE_VALID (obj); | |
410 | ||
325d39e4 HD |
411 | if (obj->bp->type != bp_breakpoint |
412 | && obj->bp->type != bp_hardware_breakpoint) | |
adc36818 PM |
413 | Py_RETURN_NONE; |
414 | ||
cb1e4e32 | 415 | const char *str = event_location_to_string (obj->bp->location.get ()); |
adc36818 PM |
416 | if (! str) |
417 | str = ""; | |
833d985d | 418 | return host_string_to_python_string (str).release (); |
adc36818 PM |
419 | } |
420 | ||
421 | /* Python function to get the breakpoint expression. */ | |
422 | static PyObject * | |
423 | bppy_get_expression (PyObject *self, void *closure) | |
424 | { | |
a121b7c1 | 425 | const char *str; |
4cb0213d | 426 | gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self; |
3a5c3e22 | 427 | struct watchpoint *wp; |
adc36818 PM |
428 | |
429 | BPPY_REQUIRE_VALID (obj); | |
430 | ||
3a5c3e22 | 431 | if (!is_watchpoint (obj->bp)) |
adc36818 PM |
432 | Py_RETURN_NONE; |
433 | ||
3a5c3e22 PA |
434 | wp = (struct watchpoint *) obj->bp; |
435 | ||
436 | str = wp->exp_string; | |
adc36818 PM |
437 | if (! str) |
438 | str = ""; | |
439 | ||
833d985d | 440 | return host_string_to_python_string (str).release (); |
adc36818 PM |
441 | } |
442 | ||
443 | /* Python function to get the condition expression of a breakpoint. */ | |
444 | static PyObject * | |
445 | bppy_get_condition (PyObject *self, void *closure) | |
446 | { | |
447 | char *str; | |
4cb0213d | 448 | gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
449 | |
450 | BPPY_REQUIRE_VALID (obj); | |
451 | ||
452 | str = obj->bp->cond_string; | |
453 | if (! str) | |
454 | Py_RETURN_NONE; | |
455 | ||
833d985d | 456 | return host_string_to_python_string (str).release (); |
adc36818 PM |
457 | } |
458 | ||
8dc78533 JK |
459 | /* Returns 0 on success. Returns -1 on error, with a python exception set. |
460 | */ | |
461 | ||
adc36818 PM |
462 | static int |
463 | bppy_set_condition (PyObject *self, PyObject *newvalue, void *closure) | |
464 | { | |
9b972014 TT |
465 | gdb::unique_xmalloc_ptr<char> exp_holder; |
466 | const char *exp = NULL; | |
4cb0213d | 467 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
cc06b668 | 468 | struct gdb_exception except; |
adc36818 PM |
469 | |
470 | BPPY_SET_REQUIRE_VALID (self_bp); | |
471 | ||
472 | if (newvalue == NULL) | |
473 | { | |
256458bc | 474 | PyErr_SetString (PyExc_TypeError, |
adc36818 PM |
475 | _("Cannot delete `condition' attribute.")); |
476 | return -1; | |
477 | } | |
478 | else if (newvalue == Py_None) | |
479 | exp = ""; | |
480 | else | |
481 | { | |
9b972014 TT |
482 | exp_holder = python_string_to_host_string (newvalue); |
483 | if (exp_holder == NULL) | |
adc36818 | 484 | return -1; |
9b972014 | 485 | exp = exp_holder.get (); |
adc36818 PM |
486 | } |
487 | ||
a70b8144 | 488 | try |
adc36818 | 489 | { |
733d554a | 490 | set_breakpoint_condition (self_bp->bp, exp, 0, false); |
adc36818 | 491 | } |
94aeb44b | 492 | catch (gdb_exception &ex) |
492d29ea | 493 | { |
94aeb44b | 494 | except = std::move (ex); |
492d29ea | 495 | } |
f3be5b64 | 496 | |
adc36818 PM |
497 | GDB_PY_SET_HANDLE_EXCEPTION (except); |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
502 | /* Python function to get the commands attached to a breakpoint. */ | |
503 | static PyObject * | |
504 | bppy_get_commands (PyObject *self, void *closure) | |
505 | { | |
4cb0213d | 506 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 | 507 | struct breakpoint *bp = self_bp->bp; |
adc36818 PM |
508 | |
509 | BPPY_REQUIRE_VALID (self_bp); | |
510 | ||
511 | if (! self_bp->bp->commands) | |
512 | Py_RETURN_NONE; | |
513 | ||
d7e74731 | 514 | string_file stb; |
adc36818 | 515 | |
d7e74731 | 516 | current_uiout->redirect (&stb); |
a70b8144 | 517 | try |
adc36818 | 518 | { |
79a45e25 | 519 | print_command_lines (current_uiout, breakpoint_commands (bp), 0); |
adc36818 | 520 | } |
230d2906 | 521 | catch (const gdb_exception &except) |
b862ce75 | 522 | { |
112e8700 | 523 | current_uiout->redirect (NULL); |
f3300387 TT |
524 | gdbpy_convert_exception (except); |
525 | return NULL; | |
b862ce75 | 526 | } |
adc36818 | 527 | |
112e8700 | 528 | current_uiout->redirect (NULL); |
833d985d | 529 | return host_string_to_python_string (stb.c_str ()).release (); |
adc36818 PM |
530 | } |
531 | ||
a913fffb TT |
532 | /* Set the commands attached to a breakpoint. Returns 0 on success. |
533 | Returns -1 on error, with a python exception set. */ | |
534 | static int | |
535 | bppy_set_commands (PyObject *self, PyObject *newvalue, void *closure) | |
536 | { | |
537 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; | |
cc06b668 | 538 | struct gdb_exception except; |
a913fffb TT |
539 | |
540 | BPPY_SET_REQUIRE_VALID (self_bp); | |
541 | ||
542 | gdb::unique_xmalloc_ptr<char> commands | |
543 | (python_string_to_host_string (newvalue)); | |
544 | if (commands == nullptr) | |
545 | return -1; | |
546 | ||
a70b8144 | 547 | try |
a913fffb TT |
548 | { |
549 | bool first = true; | |
550 | char *save_ptr = nullptr; | |
551 | auto reader | |
552 | = [&] () | |
553 | { | |
554 | const char *result = strtok_r (first ? commands.get () : nullptr, | |
555 | "\n", &save_ptr); | |
556 | first = false; | |
557 | return result; | |
558 | }; | |
559 | ||
560 | counted_command_line lines = read_command_lines_1 (reader, 1, nullptr); | |
561 | breakpoint_set_commands (self_bp->bp, std::move (lines)); | |
562 | } | |
94aeb44b | 563 | catch (gdb_exception &ex) |
a913fffb | 564 | { |
94aeb44b | 565 | except = std::move (ex); |
a913fffb | 566 | } |
a913fffb TT |
567 | |
568 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
adc36818 PM |
573 | /* Python function to get the breakpoint type. */ |
574 | static PyObject * | |
575 | bppy_get_type (PyObject *self, void *closure) | |
576 | { | |
4cb0213d | 577 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
578 | |
579 | BPPY_REQUIRE_VALID (self_bp); | |
580 | ||
47f0e2ff | 581 | return gdb_py_object_from_longest (self_bp->bp->type).release (); |
adc36818 PM |
582 | } |
583 | ||
84f4c1fe PM |
584 | /* Python function to get the visibility of the breakpoint. */ |
585 | ||
586 | static PyObject * | |
587 | bppy_get_visibility (PyObject *self, void *closure) | |
588 | { | |
4cb0213d | 589 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
84f4c1fe PM |
590 | |
591 | BPPY_REQUIRE_VALID (self_bp); | |
592 | ||
43684a7b TT |
593 | if (user_breakpoint_p (self_bp->bp)) |
594 | Py_RETURN_TRUE; | |
84f4c1fe | 595 | |
43684a7b | 596 | Py_RETURN_FALSE; |
84f4c1fe PM |
597 | } |
598 | ||
f76c27b5 PM |
599 | /* Python function to determine if the breakpoint is a temporary |
600 | breakpoint. */ | |
601 | ||
602 | static PyObject * | |
603 | bppy_get_temporary (PyObject *self, void *closure) | |
604 | { | |
4cb0213d | 605 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
f76c27b5 PM |
606 | |
607 | BPPY_REQUIRE_VALID (self_bp); | |
608 | ||
609 | if (self_bp->bp->disposition == disp_del | |
610 | || self_bp->bp->disposition == disp_del_at_next_stop) | |
611 | Py_RETURN_TRUE; | |
612 | ||
613 | Py_RETURN_FALSE; | |
614 | } | |
615 | ||
93daf339 TT |
616 | /* Python function to determine if the breakpoint is a pending |
617 | breakpoint. */ | |
618 | ||
619 | static PyObject * | |
620 | bppy_get_pending (PyObject *self, void *closure) | |
621 | { | |
622 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; | |
623 | ||
624 | BPPY_REQUIRE_VALID (self_bp); | |
625 | ||
626 | if (is_watchpoint (self_bp->bp)) | |
627 | Py_RETURN_FALSE; | |
628 | if (pending_breakpoint_p (self_bp->bp)) | |
629 | Py_RETURN_TRUE; | |
630 | ||
631 | Py_RETURN_FALSE; | |
632 | } | |
633 | ||
adc36818 PM |
634 | /* Python function to get the breakpoint's number. */ |
635 | static PyObject * | |
636 | bppy_get_number (PyObject *self, void *closure) | |
637 | { | |
4cb0213d | 638 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
639 | |
640 | BPPY_REQUIRE_VALID (self_bp); | |
641 | ||
47f0e2ff | 642 | return gdb_py_object_from_longest (self_bp->number).release (); |
adc36818 PM |
643 | } |
644 | ||
645 | /* Python function to get the breakpoint's thread ID. */ | |
646 | static PyObject * | |
647 | bppy_get_thread (PyObject *self, void *closure) | |
648 | { | |
4cb0213d | 649 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
650 | |
651 | BPPY_REQUIRE_VALID (self_bp); | |
652 | ||
653 | if (self_bp->bp->thread == -1) | |
654 | Py_RETURN_NONE; | |
655 | ||
47f0e2ff | 656 | return gdb_py_object_from_longest (self_bp->bp->thread).release (); |
adc36818 PM |
657 | } |
658 | ||
659 | /* Python function to get the breakpoint's task ID (in Ada). */ | |
660 | static PyObject * | |
661 | bppy_get_task (PyObject *self, void *closure) | |
662 | { | |
4cb0213d | 663 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
664 | |
665 | BPPY_REQUIRE_VALID (self_bp); | |
666 | ||
667 | if (self_bp->bp->task == 0) | |
668 | Py_RETURN_NONE; | |
669 | ||
47f0e2ff | 670 | return gdb_py_object_from_longest (self_bp->bp->task).release (); |
adc36818 PM |
671 | } |
672 | ||
673 | /* Python function to get the breakpoint's hit count. */ | |
674 | static PyObject * | |
675 | bppy_get_hit_count (PyObject *self, void *closure) | |
676 | { | |
4cb0213d | 677 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
678 | |
679 | BPPY_REQUIRE_VALID (self_bp); | |
680 | ||
47f0e2ff | 681 | return gdb_py_object_from_longest (self_bp->bp->hit_count).release (); |
adc36818 PM |
682 | } |
683 | ||
684 | /* Python function to get the breakpoint's ignore count. */ | |
685 | static PyObject * | |
686 | bppy_get_ignore_count (PyObject *self, void *closure) | |
687 | { | |
4cb0213d | 688 | gdbpy_breakpoint_object *self_bp = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
689 | |
690 | BPPY_REQUIRE_VALID (self_bp); | |
691 | ||
47f0e2ff | 692 | return gdb_py_object_from_longest (self_bp->bp->ignore_count).release (); |
adc36818 PM |
693 | } |
694 | ||
824cc835 PM |
695 | /* Internal function to validate the Python parameters/keywords |
696 | provided to bppy_init. */ | |
697 | ||
698 | static int | |
699 | bppy_init_validate_args (const char *spec, char *source, | |
700 | char *function, char *label, | |
701 | char *line, enum bptype type) | |
702 | { | |
703 | /* If spec is defined, ensure that none of the explicit location | |
704 | keywords are also defined. */ | |
705 | if (spec != NULL) | |
706 | { | |
707 | if (source != NULL || function != NULL || label != NULL || line != NULL) | |
708 | { | |
709 | PyErr_SetString (PyExc_RuntimeError, | |
710 | _("Breakpoints specified with spec cannot " | |
711 | "have source, function, label or line defined.")); | |
712 | return -1; | |
713 | } | |
714 | } | |
715 | else | |
716 | { | |
717 | /* If spec isn't defined, ensure that the user is not trying to | |
718 | define a watchpoint with an explicit location. */ | |
719 | if (type == bp_watchpoint) | |
720 | { | |
721 | PyErr_SetString (PyExc_RuntimeError, | |
722 | _("Watchpoints cannot be set by explicit " | |
723 | "location parameters.")); | |
724 | return -1; | |
725 | } | |
726 | else | |
727 | { | |
728 | /* Otherwise, ensure some explicit locations are defined. */ | |
729 | if (source == NULL && function == NULL && label == NULL | |
730 | && line == NULL) | |
731 | { | |
732 | PyErr_SetString (PyExc_RuntimeError, | |
733 | _("Neither spec nor explicit location set.")); | |
734 | return -1; | |
735 | } | |
736 | /* Finally, if source is specified, ensure that line, label | |
737 | or function are specified too. */ | |
738 | if (source != NULL && function == NULL && label == NULL | |
739 | && line == NULL) | |
740 | { | |
741 | PyErr_SetString (PyExc_RuntimeError, | |
742 | _("Specifying a source must also include a " | |
743 | "line, label or function.")); | |
744 | return -1; | |
745 | } | |
746 | } | |
747 | } | |
748 | return 1; | |
749 | } | |
750 | ||
adc36818 | 751 | /* Python function to create a new breakpoint. */ |
7371cf6d PM |
752 | static int |
753 | bppy_init (PyObject *self, PyObject *args, PyObject *kwargs) | |
adc36818 | 754 | { |
2adadf51 | 755 | static const char *keywords[] = { "spec", "type", "wp_class", "internal", |
824cc835 | 756 | "temporary","source", "function", |
b89641ba | 757 | "label", "line", "qualified", NULL }; |
824cc835 PM |
758 | const char *spec = NULL; |
759 | enum bptype type = bp_breakpoint; | |
adc36818 | 760 | int access_type = hw_write; |
84f4c1fe | 761 | PyObject *internal = NULL; |
f76c27b5 | 762 | PyObject *temporary = NULL; |
824cc835 | 763 | PyObject *lineobj = NULL;; |
84f4c1fe | 764 | int internal_bp = 0; |
f76c27b5 | 765 | int temporary_bp = 0; |
824cc835 PM |
766 | gdb::unique_xmalloc_ptr<char> line; |
767 | char *label = NULL; | |
768 | char *source = NULL; | |
769 | char *function = NULL; | |
8e557e52 | 770 | PyObject * qualified = NULL; |
adc36818 | 771 | |
8e557e52 | 772 | if (!gdb_PyArg_ParseTupleAndKeywords (args, kwargs, "|siiOOsssOO", keywords, |
2adadf51 | 773 | &spec, &type, &access_type, |
824cc835 PM |
774 | &internal, |
775 | &temporary, &source, | |
b89641ba SM |
776 | &function, &label, &lineobj, |
777 | &qualified)) | |
7371cf6d | 778 | return -1; |
adc36818 | 779 | |
824cc835 PM |
780 | |
781 | if (lineobj != NULL) | |
782 | { | |
783 | if (PyInt_Check (lineobj)) | |
784 | line.reset (xstrprintf ("%ld", PyInt_AsLong (lineobj))); | |
785 | else if (PyString_Check (lineobj)) | |
786 | line = python_string_to_host_string (lineobj); | |
787 | else | |
788 | { | |
789 | PyErr_SetString (PyExc_RuntimeError, | |
790 | _("Line keyword should be an integer or a string. ")); | |
791 | return -1; | |
792 | } | |
793 | } | |
794 | ||
84f4c1fe PM |
795 | if (internal) |
796 | { | |
797 | internal_bp = PyObject_IsTrue (internal); | |
798 | if (internal_bp == -1) | |
7371cf6d | 799 | return -1; |
84f4c1fe PM |
800 | } |
801 | ||
f76c27b5 PM |
802 | if (temporary != NULL) |
803 | { | |
804 | temporary_bp = PyObject_IsTrue (temporary); | |
805 | if (temporary_bp == -1) | |
806 | return -1; | |
807 | } | |
808 | ||
824cc835 PM |
809 | if (bppy_init_validate_args (spec, source, function, label, line.get (), |
810 | type) == -1) | |
811 | return -1; | |
812 | ||
4cb0213d | 813 | bppy_pending_object = (gdbpy_breakpoint_object *) self; |
adc36818 PM |
814 | bppy_pending_object->number = -1; |
815 | bppy_pending_object->bp = NULL; | |
256458bc | 816 | |
a70b8144 | 817 | try |
adc36818 PM |
818 | { |
819 | switch (type) | |
820 | { | |
821 | case bp_breakpoint: | |
325d39e4 | 822 | case bp_hardware_breakpoint: |
adc36818 | 823 | { |
824cc835 | 824 | event_location_up location; |
b89641ba | 825 | symbol_name_match_type func_name_match_type |
8e557e52 | 826 | = (qualified != NULL && PyObject_IsTrue (qualified) |
b89641ba SM |
827 | ? symbol_name_match_type::FULL |
828 | : symbol_name_match_type::WILD); | |
824cc835 PM |
829 | |
830 | if (spec != NULL) | |
831 | { | |
832 | gdb::unique_xmalloc_ptr<char> | |
833 | copy_holder (xstrdup (skip_spaces (spec))); | |
834 | const char *copy = copy_holder.get (); | |
835 | ||
836 | location = string_to_event_location (©, | |
b89641ba SM |
837 | current_language, |
838 | func_name_match_type); | |
824cc835 PM |
839 | } |
840 | else | |
841 | { | |
842 | struct explicit_location explicit_loc; | |
843 | ||
844 | initialize_explicit_location (&explicit_loc); | |
845 | explicit_loc.source_filename = source; | |
846 | explicit_loc.function_name = function; | |
847 | explicit_loc.label_name = label; | |
848 | ||
849 | if (line != NULL) | |
850 | explicit_loc.line_offset = | |
851 | linespec_parse_line_offset (line.get ()); | |
852 | ||
b89641ba SM |
853 | explicit_loc.func_name_match_type = func_name_match_type; |
854 | ||
824cc835 PM |
855 | location = new_explicit_location (&explicit_loc); |
856 | } | |
857 | ||
bac7c5cf GB |
858 | const struct breakpoint_ops *ops = |
859 | breakpoint_ops_for_event_location (location.get (), false); | |
860 | ||
adc36818 | 861 | create_breakpoint (python_gdbarch, |
10a636cc | 862 | location.get (), NULL, -1, NULL, false, |
adc36818 | 863 | 0, |
325d39e4 | 864 | temporary_bp, type, |
adc36818 PM |
865 | 0, |
866 | AUTO_BOOLEAN_TRUE, | |
bac7c5cf | 867 | ops, |
44f238bb | 868 | 0, 1, internal_bp, 0); |
adc36818 PM |
869 | break; |
870 | } | |
824cc835 | 871 | case bp_watchpoint: |
adc36818 | 872 | { |
824cc835 PM |
873 | gdb::unique_xmalloc_ptr<char> |
874 | copy_holder (xstrdup (skip_spaces (spec))); | |
875 | char *copy = copy_holder.get (); | |
876 | ||
adc36818 | 877 | if (access_type == hw_write) |
ddd49eee | 878 | watch_command_wrapper (copy, 0, internal_bp); |
adc36818 | 879 | else if (access_type == hw_access) |
ddd49eee | 880 | awatch_command_wrapper (copy, 0, internal_bp); |
adc36818 | 881 | else if (access_type == hw_read) |
ddd49eee | 882 | rwatch_command_wrapper (copy, 0, internal_bp); |
adc36818 PM |
883 | else |
884 | error(_("Cannot understand watchpoint access type.")); | |
885 | break; | |
886 | } | |
6b95f5ad AB |
887 | case bp_catchpoint: |
888 | error (_("BP_CATCHPOINT not supported")); | |
adc36818 PM |
889 | default: |
890 | error(_("Do not understand breakpoint type to set.")); | |
891 | } | |
892 | } | |
230d2906 | 893 | catch (const gdb_exception &except) |
adc36818 | 894 | { |
f4952523 | 895 | bppy_pending_object = NULL; |
ec9c2750 | 896 | gdbpy_convert_exception (except); |
7371cf6d | 897 | return -1; |
adc36818 PM |
898 | } |
899 | ||
4cb0213d | 900 | BPPY_SET_REQUIRE_VALID ((gdbpy_breakpoint_object *) self); |
7371cf6d | 901 | return 0; |
adc36818 PM |
902 | } |
903 | ||
240edef6 SM |
904 | /* Append to LIST the breakpoint Python object associated to B. |
905 | ||
906 | Return true on success. Return false on failure, with the Python error | |
907 | indicator set. */ | |
adc36818 | 908 | |
95da600f CB |
909 | static bool |
910 | build_bp_list (struct breakpoint *b, PyObject *list) | |
84f4c1fe | 911 | { |
50389644 | 912 | PyObject *bp = (PyObject *) b->py_bp_object; |
84f4c1fe PM |
913 | |
914 | /* Not all breakpoints will have a companion Python object. | |
915 | Only breakpoints that were created via bppy_new, or | |
916 | breakpoints that were created externally and are tracked by | |
917 | the Python Scripting API. */ | |
240edef6 | 918 | if (bp == nullptr) |
95da600f | 919 | return true; |
84f4c1fe | 920 | |
240edef6 | 921 | return PyList_Append (list, bp) == 0; |
84f4c1fe PM |
922 | } |
923 | ||
adc36818 PM |
924 | /* Static function to return a tuple holding all breakpoints. */ |
925 | ||
926 | PyObject * | |
927 | gdbpy_breakpoints (PyObject *self, PyObject *args) | |
928 | { | |
adc36818 | 929 | if (bppy_live == 0) |
1957f6b8 | 930 | return PyTuple_New (0); |
adc36818 | 931 | |
7780f186 | 932 | gdbpy_ref<> list (PyList_New (0)); |
bf2a52fa | 933 | if (list == NULL) |
84f4c1fe | 934 | return NULL; |
d59b6f6c | 935 | |
240edef6 SM |
936 | /* If build_bp_list returns false, it signals an error condition. In that |
937 | case abandon building the list and return nullptr. */ | |
938 | for (breakpoint *bp : all_breakpoints ()) | |
939 | if (!build_bp_list (bp, list.get ())) | |
940 | return nullptr; | |
27ca1a5b | 941 | |
bf2a52fa | 942 | return PyList_AsTuple (list.get ()); |
adc36818 PM |
943 | } |
944 | ||
7371cf6d PM |
945 | /* Call the "stop" method (if implemented) in the breakpoint |
946 | class. If the method returns True, the inferior will be | |
947 | stopped at the breakpoint. Otherwise the inferior will be | |
948 | allowed to continue. */ | |
949 | ||
6dddc817 DE |
950 | enum ext_lang_bp_stop |
951 | gdbpy_breakpoint_cond_says_stop (const struct extension_language_defn *extlang, | |
952 | struct breakpoint *b) | |
7371cf6d | 953 | { |
6dddc817 DE |
954 | int stop; |
955 | struct gdbpy_breakpoint_object *bp_obj = b->py_bp_object; | |
7371cf6d | 956 | PyObject *py_bp = (PyObject *) bp_obj; |
6dddc817 | 957 | struct gdbarch *garch; |
6dddc817 DE |
958 | |
959 | if (bp_obj == NULL) | |
960 | return EXT_LANG_BP_STOP_UNSET; | |
961 | ||
962 | stop = -1; | |
963 | garch = b->gdbarch ? b->gdbarch : get_current_arch (); | |
de2dc875 TT |
964 | |
965 | gdbpy_enter enter_py (garch, current_language); | |
7371cf6d | 966 | |
cc72b2a2 KP |
967 | if (bp_obj->is_finish_bp) |
968 | bpfinishpy_pre_stop_hook (bp_obj); | |
969 | ||
7371cf6d PM |
970 | if (PyObject_HasAttrString (py_bp, stop_func)) |
971 | { | |
7780f186 | 972 | gdbpy_ref<> result (PyObject_CallMethod (py_bp, stop_func, NULL)); |
7371cf6d | 973 | |
6dddc817 | 974 | stop = 1; |
64081434 | 975 | if (result != NULL) |
7371cf6d | 976 | { |
64081434 | 977 | int evaluate = PyObject_IsTrue (result.get ()); |
7371cf6d PM |
978 | |
979 | if (evaluate == -1) | |
980 | gdbpy_print_stack (); | |
981 | ||
982 | /* If the "stop" function returns False that means | |
983 | the Python breakpoint wants GDB to continue. */ | |
984 | if (! evaluate) | |
985 | stop = 0; | |
7371cf6d PM |
986 | } |
987 | else | |
988 | gdbpy_print_stack (); | |
989 | } | |
cc72b2a2 KP |
990 | |
991 | if (bp_obj->is_finish_bp) | |
992 | bpfinishpy_post_stop_hook (bp_obj); | |
993 | ||
6dddc817 DE |
994 | if (stop < 0) |
995 | return EXT_LANG_BP_STOP_UNSET; | |
996 | return stop ? EXT_LANG_BP_STOP_YES : EXT_LANG_BP_STOP_NO; | |
7371cf6d PM |
997 | } |
998 | ||
999 | /* Checks if the "stop" method exists in this breakpoint. | |
1000 | Used by condition_command to ensure mutual exclusion of breakpoint | |
1001 | conditions. */ | |
1002 | ||
1003 | int | |
6dddc817 DE |
1004 | gdbpy_breakpoint_has_cond (const struct extension_language_defn *extlang, |
1005 | struct breakpoint *b) | |
7371cf6d | 1006 | { |
6dddc817 DE |
1007 | PyObject *py_bp; |
1008 | struct gdbarch *garch; | |
256458bc | 1009 | |
6dddc817 DE |
1010 | if (b->py_bp_object == NULL) |
1011 | return 0; | |
7371cf6d | 1012 | |
6dddc817 DE |
1013 | py_bp = (PyObject *) b->py_bp_object; |
1014 | garch = b->gdbarch ? b->gdbarch : get_current_arch (); | |
7371cf6d | 1015 | |
de2dc875 TT |
1016 | gdbpy_enter enter_py (garch, current_language); |
1017 | return PyObject_HasAttrString (py_bp, stop_func); | |
7371cf6d PM |
1018 | } |
1019 | ||
adc36818 PM |
1020 | \f |
1021 | ||
1022 | /* Event callback functions. */ | |
1023 | ||
1024 | /* Callback that is used when a breakpoint is created. This function | |
1025 | will create a new Python breakpoint object. */ | |
1026 | static void | |
8d3788bd | 1027 | gdbpy_breakpoint_created (struct breakpoint *bp) |
adc36818 | 1028 | { |
75140e3b AB |
1029 | PYBP_SCOPED_DEBUG_ENTER_EXIT; |
1030 | ||
4cb0213d | 1031 | gdbpy_breakpoint_object *newbp; |
adc36818 | 1032 | |
43684a7b | 1033 | if (!user_breakpoint_p (bp) && bppy_pending_object == NULL) |
75140e3b AB |
1034 | { |
1035 | pybp_debug_printf ("not attaching python object to this breakpoint"); | |
1036 | return; | |
1037 | } | |
84f4c1fe | 1038 | |
256458bc | 1039 | if (bp->type != bp_breakpoint |
325d39e4 | 1040 | && bp->type != bp_hardware_breakpoint |
adc36818 | 1041 | && bp->type != bp_watchpoint |
256458bc | 1042 | && bp->type != bp_hardware_watchpoint |
adc36818 | 1043 | && bp->type != bp_read_watchpoint |
6b95f5ad AB |
1044 | && bp->type != bp_access_watchpoint |
1045 | && bp->type != bp_catchpoint) | |
75140e3b AB |
1046 | { |
1047 | pybp_debug_printf ("is not a breakpoint or watchpoint"); | |
1048 | return; | |
1049 | } | |
adc36818 | 1050 | |
25ce02ee TT |
1051 | struct gdbarch *garch = bp->gdbarch ? bp->gdbarch : get_current_arch (); |
1052 | gdbpy_enter enter_py (garch, current_language); | |
adc36818 PM |
1053 | |
1054 | if (bppy_pending_object) | |
1055 | { | |
1056 | newbp = bppy_pending_object; | |
bd454f8b | 1057 | Py_INCREF (newbp); |
adc36818 | 1058 | bppy_pending_object = NULL; |
75140e3b | 1059 | pybp_debug_printf ("attaching existing breakpoint object"); |
adc36818 PM |
1060 | } |
1061 | else | |
75140e3b AB |
1062 | { |
1063 | newbp = PyObject_New (gdbpy_breakpoint_object, &breakpoint_object_type); | |
1064 | pybp_debug_printf ("attaching new breakpoint object"); | |
1065 | } | |
adc36818 PM |
1066 | if (newbp) |
1067 | { | |
8d3788bd | 1068 | newbp->number = bp->number; |
adc36818 | 1069 | newbp->bp = bp; |
50389644 | 1070 | newbp->bp->py_bp_object = newbp; |
cc72b2a2 | 1071 | newbp->is_finish_bp = 0; |
84f4c1fe PM |
1072 | ++bppy_live; |
1073 | } | |
1074 | else | |
1075 | { | |
1076 | PyErr_SetString (PyExc_RuntimeError, | |
1077 | _("Error while creating breakpoint from GDB.")); | |
1078 | gdbpy_print_stack (); | |
adc36818 | 1079 | } |
adc36818 | 1080 | |
dac790e1 TT |
1081 | if (!evregpy_no_listeners_p (gdb_py_events.breakpoint_created)) |
1082 | { | |
dac790e1 TT |
1083 | if (evpy_emit_event ((PyObject *) newbp, |
1084 | gdb_py_events.breakpoint_created) < 0) | |
1085 | gdbpy_print_stack (); | |
1086 | } | |
adc36818 PM |
1087 | } |
1088 | ||
1089 | /* Callback that is used when a breakpoint is deleted. This will | |
1090 | invalidate the corresponding Python object. */ | |
1091 | static void | |
8d3788bd | 1092 | gdbpy_breakpoint_deleted (struct breakpoint *b) |
adc36818 | 1093 | { |
75140e3b AB |
1094 | PYBP_SCOPED_DEBUG_ENTER_EXIT; |
1095 | ||
8d3788bd | 1096 | int num = b->number; |
84f4c1fe | 1097 | struct breakpoint *bp = NULL; |
adc36818 | 1098 | |
84f4c1fe | 1099 | bp = get_breakpoint (num); |
d930d06e | 1100 | if (bp) |
adc36818 | 1101 | { |
25ce02ee TT |
1102 | struct gdbarch *garch = bp->gdbarch ? bp->gdbarch : get_current_arch (); |
1103 | gdbpy_enter enter_py (garch, current_language); | |
1104 | ||
88b6faea TT |
1105 | gdbpy_ref<gdbpy_breakpoint_object> bp_obj (bp->py_bp_object); |
1106 | if (bp_obj != NULL) | |
d930d06e | 1107 | { |
dac790e1 TT |
1108 | if (!evregpy_no_listeners_p (gdb_py_events.breakpoint_deleted)) |
1109 | { | |
88b6faea | 1110 | if (evpy_emit_event ((PyObject *) bp_obj.get (), |
dac790e1 TT |
1111 | gdb_py_events.breakpoint_deleted) < 0) |
1112 | gdbpy_print_stack (); | |
1113 | } | |
1114 | ||
d930d06e TT |
1115 | bp_obj->bp = NULL; |
1116 | --bppy_live; | |
d930d06e | 1117 | } |
adc36818 | 1118 | } |
adc36818 PM |
1119 | } |
1120 | ||
dac790e1 TT |
1121 | /* Callback that is used when a breakpoint is modified. */ |
1122 | ||
1123 | static void | |
1124 | gdbpy_breakpoint_modified (struct breakpoint *b) | |
1125 | { | |
75140e3b AB |
1126 | PYBP_SCOPED_DEBUG_ENTER_EXIT; |
1127 | ||
dac790e1 | 1128 | int num = b->number; |
dac790e1 | 1129 | struct breakpoint *bp = NULL; |
dac790e1 | 1130 | |
dac790e1 TT |
1131 | bp = get_breakpoint (num); |
1132 | if (bp) | |
1133 | { | |
25ce02ee TT |
1134 | struct gdbarch *garch = bp->gdbarch ? bp->gdbarch : get_current_arch (); |
1135 | gdbpy_enter enter_py (garch, current_language); | |
1136 | ||
dac790e1 TT |
1137 | PyObject *bp_obj = (PyObject *) bp->py_bp_object; |
1138 | if (bp_obj) | |
1139 | { | |
1140 | if (!evregpy_no_listeners_p (gdb_py_events.breakpoint_modified)) | |
1141 | { | |
dac790e1 TT |
1142 | if (evpy_emit_event (bp_obj, |
1143 | gdb_py_events.breakpoint_modified) < 0) | |
1144 | gdbpy_print_stack (); | |
1145 | } | |
1146 | } | |
1147 | } | |
dac790e1 TT |
1148 | } |
1149 | ||
adc36818 PM |
1150 | \f |
1151 | ||
1152 | /* Initialize the Python breakpoint code. */ | |
999633ed | 1153 | int |
adc36818 PM |
1154 | gdbpy_initialize_breakpoints (void) |
1155 | { | |
1156 | int i; | |
1157 | ||
6a1b1664 | 1158 | breakpoint_object_type.tp_new = PyType_GenericNew; |
adc36818 | 1159 | if (PyType_Ready (&breakpoint_object_type) < 0) |
999633ed | 1160 | return -1; |
adc36818 | 1161 | |
aa36459a TT |
1162 | if (gdb_pymodule_addobject (gdb_module, "Breakpoint", |
1163 | (PyObject *) &breakpoint_object_type) < 0) | |
999633ed | 1164 | return -1; |
adc36818 | 1165 | |
c90e7d63 SM |
1166 | gdb::observers::breakpoint_created.attach (gdbpy_breakpoint_created, |
1167 | "py-breakpoint"); | |
1168 | gdb::observers::breakpoint_deleted.attach (gdbpy_breakpoint_deleted, | |
1169 | "py-breakpoint"); | |
1170 | gdb::observers::breakpoint_modified.attach (gdbpy_breakpoint_modified, | |
1171 | "py-breakpoint"); | |
adc36818 PM |
1172 | |
1173 | /* Add breakpoint types constants. */ | |
1174 | for (i = 0; pybp_codes[i].name; ++i) | |
1175 | { | |
6c28e44a | 1176 | if (PyModule_AddIntConstant (gdb_module, pybp_codes[i].name, |
adc36818 | 1177 | pybp_codes[i].code) < 0) |
999633ed | 1178 | return -1; |
adc36818 PM |
1179 | } |
1180 | ||
1181 | /* Add watchpoint types constants. */ | |
1182 | for (i = 0; pybp_watch_types[i].name; ++i) | |
1183 | { | |
6c28e44a | 1184 | if (PyModule_AddIntConstant (gdb_module, pybp_watch_types[i].name, |
adc36818 | 1185 | pybp_watch_types[i].code) < 0) |
999633ed | 1186 | return -1; |
adc36818 PM |
1187 | } |
1188 | ||
999633ed | 1189 | return 0; |
adc36818 PM |
1190 | } |
1191 | ||
1192 | \f | |
1193 | ||
7371cf6d PM |
1194 | /* Helper function that overrides this Python object's |
1195 | PyObject_GenericSetAttr to allow extra validation of the attribute | |
1196 | being set. */ | |
1197 | ||
256458bc | 1198 | static int |
7371cf6d PM |
1199 | local_setattro (PyObject *self, PyObject *name, PyObject *v) |
1200 | { | |
256458bc | 1201 | gdbpy_breakpoint_object *obj = (gdbpy_breakpoint_object *) self; |
9b972014 | 1202 | gdb::unique_xmalloc_ptr<char> attr (python_string_to_host_string (name)); |
256458bc | 1203 | |
7371cf6d PM |
1204 | if (attr == NULL) |
1205 | return -1; | |
256458bc | 1206 | |
7371cf6d | 1207 | /* If the attribute trying to be set is the "stop" method, |
6dddc817 DE |
1208 | but we already have a condition set in the CLI or other extension |
1209 | language, disallow this operation. */ | |
9b972014 | 1210 | if (strcmp (attr.get (), stop_func) == 0) |
7371cf6d | 1211 | { |
6dddc817 DE |
1212 | const struct extension_language_defn *extlang = NULL; |
1213 | ||
1214 | if (obj->bp->cond_string != NULL) | |
1215 | extlang = get_ext_lang_defn (EXT_LANG_GDB); | |
1216 | if (extlang == NULL) | |
1217 | extlang = get_breakpoint_cond_ext_lang (obj->bp, EXT_LANG_PYTHON); | |
1218 | if (extlang != NULL) | |
1219 | { | |
7f968c89 TT |
1220 | std::string error_text |
1221 | = string_printf (_("Only one stop condition allowed. There is" | |
1222 | " currently a %s stop condition defined for" | |
1223 | " this breakpoint."), | |
1224 | ext_lang_capitalized_name (extlang)); | |
1225 | PyErr_SetString (PyExc_RuntimeError, error_text.c_str ()); | |
6dddc817 DE |
1226 | return -1; |
1227 | } | |
7371cf6d | 1228 | } |
256458bc | 1229 | |
8833fbf0 | 1230 | return PyObject_GenericSetAttr (self, name, v); |
7371cf6d PM |
1231 | } |
1232 | ||
0d1f4ceb | 1233 | static gdb_PyGetSetDef breakpoint_object_getset[] = { |
adc36818 PM |
1234 | { "enabled", bppy_get_enabled, bppy_set_enabled, |
1235 | "Boolean telling whether the breakpoint is enabled.", NULL }, | |
1236 | { "silent", bppy_get_silent, bppy_set_silent, | |
1237 | "Boolean telling whether the breakpoint is silent.", NULL }, | |
1238 | { "thread", bppy_get_thread, bppy_set_thread, | |
1239 | "Thread ID for the breakpoint.\n\ | |
1240 | If the value is a thread ID (integer), then this is a thread-specific breakpoint.\n\ | |
1241 | If the value is None, then this breakpoint is not thread-specific.\n\ | |
1242 | No other type of value can be used.", NULL }, | |
1243 | { "task", bppy_get_task, bppy_set_task, | |
1244 | "Thread ID for the breakpoint.\n\ | |
1245 | If the value is a task ID (integer), then this is an Ada task-specific breakpoint.\n\ | |
1246 | If the value is None, then this breakpoint is not task-specific.\n\ | |
1247 | No other type of value can be used.", NULL }, | |
1248 | { "ignore_count", bppy_get_ignore_count, bppy_set_ignore_count, | |
1249 | "Number of times this breakpoint should be automatically continued.", | |
1250 | NULL }, | |
1251 | { "number", bppy_get_number, NULL, | |
1252 | "Breakpoint's number assigned by GDB.", NULL }, | |
1253 | { "hit_count", bppy_get_hit_count, bppy_set_hit_count, | |
1254 | "Number of times the breakpoint has been hit.\n\ | |
1255 | Can be set to zero to clear the count. No other value is valid\n\ | |
1256 | when setting this property.", NULL }, | |
1257 | { "location", bppy_get_location, NULL, | |
1258 | "Location of the breakpoint, as specified by the user.", NULL}, | |
1259 | { "expression", bppy_get_expression, NULL, | |
1260 | "Expression of the breakpoint, as specified by the user.", NULL}, | |
1261 | { "condition", bppy_get_condition, bppy_set_condition, | |
1262 | "Condition of the breakpoint, as specified by the user,\ | |
1263 | or None if no condition set."}, | |
a913fffb | 1264 | { "commands", bppy_get_commands, bppy_set_commands, |
adc36818 PM |
1265 | "Commands of the breakpoint, as specified by the user."}, |
1266 | { "type", bppy_get_type, NULL, | |
1267 | "Type of breakpoint."}, | |
84f4c1fe PM |
1268 | { "visible", bppy_get_visibility, NULL, |
1269 | "Whether the breakpoint is visible to the user."}, | |
f76c27b5 PM |
1270 | { "temporary", bppy_get_temporary, NULL, |
1271 | "Whether this breakpoint is a temporary breakpoint."}, | |
93daf339 TT |
1272 | { "pending", bppy_get_pending, NULL, |
1273 | "Whether this breakpoint is a pending breakpoint."}, | |
adc36818 PM |
1274 | { NULL } /* Sentinel. */ |
1275 | }; | |
1276 | ||
1277 | static PyMethodDef breakpoint_object_methods[] = | |
1278 | { | |
1279 | { "is_valid", bppy_is_valid, METH_NOARGS, | |
1280 | "Return true if this breakpoint is valid, false if not." }, | |
94b6973e PM |
1281 | { "delete", bppy_delete_breakpoint, METH_NOARGS, |
1282 | "Delete the underlying GDB breakpoint." }, | |
adc36818 PM |
1283 | { NULL } /* Sentinel. */ |
1284 | }; | |
1285 | ||
cc72b2a2 | 1286 | PyTypeObject breakpoint_object_type = |
adc36818 | 1287 | { |
9a27f2c6 | 1288 | PyVarObject_HEAD_INIT (NULL, 0) |
adc36818 | 1289 | "gdb.Breakpoint", /*tp_name*/ |
4cb0213d | 1290 | sizeof (gdbpy_breakpoint_object), /*tp_basicsize*/ |
adc36818 PM |
1291 | 0, /*tp_itemsize*/ |
1292 | 0, /*tp_dealloc*/ | |
1293 | 0, /*tp_print*/ | |
1294 | 0, /*tp_getattr*/ | |
1295 | 0, /*tp_setattr*/ | |
1296 | 0, /*tp_compare*/ | |
1297 | 0, /*tp_repr*/ | |
1298 | 0, /*tp_as_number*/ | |
1299 | 0, /*tp_as_sequence*/ | |
1300 | 0, /*tp_as_mapping*/ | |
1301 | 0, /*tp_hash */ | |
1302 | 0, /*tp_call*/ | |
1303 | 0, /*tp_str*/ | |
1304 | 0, /*tp_getattro*/ | |
7371cf6d | 1305 | (setattrofunc)local_setattro, /*tp_setattro */ |
adc36818 | 1306 | 0, /*tp_as_buffer*/ |
7371cf6d | 1307 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/ |
adc36818 PM |
1308 | "GDB breakpoint object", /* tp_doc */ |
1309 | 0, /* tp_traverse */ | |
1310 | 0, /* tp_clear */ | |
1311 | 0, /* tp_richcompare */ | |
1312 | 0, /* tp_weaklistoffset */ | |
1313 | 0, /* tp_iter */ | |
1314 | 0, /* tp_iternext */ | |
1315 | breakpoint_object_methods, /* tp_methods */ | |
1316 | 0, /* tp_members */ | |
7371cf6d PM |
1317 | breakpoint_object_getset, /* tp_getset */ |
1318 | 0, /* tp_base */ | |
1319 | 0, /* tp_dict */ | |
1320 | 0, /* tp_descr_get */ | |
1321 | 0, /* tp_descr_set */ | |
1322 | 0, /* tp_dictoffset */ | |
1323 | bppy_init, /* tp_init */ | |
1324 | 0, /* tp_alloc */ | |
adc36818 | 1325 | }; |
75140e3b AB |
1326 | |
1327 | void _initialize_py_breakpoint (); | |
1328 | void | |
1329 | _initialize_py_breakpoint () | |
1330 | { | |
1331 | add_setshow_boolean_cmd | |
1332 | ("py-breakpoint", class_maintenance, &pybp_debug, | |
1333 | _("Set Python breakpoint debugging."), | |
1334 | _("Show Python breakpoint debugging."), | |
1335 | _("When on, Python breakpoint debugging is enabled."), | |
1336 | NULL, | |
1337 | show_pybp_debug, | |
1338 | &setdebuglist, &showdebuglist); | |
1339 | } |