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d57a3c85 TJB |
1 | /* General python/gdb code |
2 | ||
28e7fd62 | 3 | Copyright (C) 2008-2013 Free Software Foundation, Inc. |
d57a3c85 TJB |
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" | |
d452c4bc | 21 | #include "arch-utils.h" |
d57a3c85 TJB |
22 | #include "command.h" |
23 | #include "ui-out.h" | |
24 | #include "cli/cli-script.h" | |
25 | #include "gdbcmd.h" | |
fa33c3cd | 26 | #include "progspace.h" |
89c73ade | 27 | #include "objfiles.h" |
d452c4bc UW |
28 | #include "value.h" |
29 | #include "language.h" | |
d9c57d9f | 30 | #include "exceptions.h" |
ca5c20b6 | 31 | #include "event-loop.h" |
4a532131 | 32 | #include "serial.h" |
3ab1ec27 | 33 | #include "readline/tilde.h" |
7371cf6d | 34 | #include "python.h" |
529480d0 | 35 | #include "cli/cli-utils.h" |
d57a3c85 TJB |
36 | |
37 | #include <ctype.h> | |
38 | ||
80b6e756 PM |
39 | /* Declared constants and enum for python stack printing. */ |
40 | static const char python_excp_none[] = "none"; | |
41 | static const char python_excp_full[] = "full"; | |
42 | static const char python_excp_message[] = "message"; | |
43 | ||
44 | /* "set python print-stack" choices. */ | |
40478521 | 45 | static const char *const python_excp_enums[] = |
80b6e756 PM |
46 | { |
47 | python_excp_none, | |
48 | python_excp_full, | |
49 | python_excp_message, | |
50 | NULL | |
51 | }; | |
52 | ||
53 | /* The exception printing variable. 'full' if we want to print the | |
54 | error message and stack, 'none' if we want to print nothing, and | |
55 | 'message' if we only want to print the error message. 'message' is | |
56 | the default. */ | |
57 | static const char *gdbpy_should_print_stack = python_excp_message; | |
d57a3c85 TJB |
58 | |
59 | #ifdef HAVE_PYTHON | |
60 | ||
d57a3c85 TJB |
61 | #include "libiberty.h" |
62 | #include "cli/cli-decode.h" | |
63 | #include "charset.h" | |
64 | #include "top.h" | |
cb2e07a6 | 65 | #include "solib.h" |
d57a3c85 | 66 | #include "python-internal.h" |
cb2e07a6 PM |
67 | #include "linespec.h" |
68 | #include "source.h" | |
d57a3c85 TJB |
69 | #include "version.h" |
70 | #include "target.h" | |
71 | #include "gdbthread.h" | |
d17b6f81 | 72 | #include "observer.h" |
b4a14fd0 | 73 | #include "interps.h" |
9a27f2c6 | 74 | #include "event-top.h" |
d57a3c85 | 75 | |
12453b93 | 76 | static PyMethodDef GdbMethods[]; |
d57a3c85 | 77 | |
9a27f2c6 PK |
78 | #ifdef IS_PY3K |
79 | static struct PyModuleDef GdbModuleDef; | |
80 | #endif | |
81 | ||
d57a3c85 | 82 | PyObject *gdb_module; |
b9516fa1 | 83 | PyObject *gdb_python_module; |
d57a3c85 | 84 | |
a6bac58e TT |
85 | /* Some string constants we may wish to use. */ |
86 | PyObject *gdbpy_to_string_cst; | |
87 | PyObject *gdbpy_children_cst; | |
88 | PyObject *gdbpy_display_hint_cst; | |
d8906c6f | 89 | PyObject *gdbpy_doc_cst; |
967cf477 | 90 | PyObject *gdbpy_enabled_cst; |
fb6a3ed3 | 91 | PyObject *gdbpy_value_cst; |
d8906c6f | 92 | |
07ca107c DE |
93 | /* The GdbError exception. */ |
94 | PyObject *gdbpy_gdberror_exc; | |
d452c4bc | 95 | |
621c8364 TT |
96 | /* The `gdb.error' base class. */ |
97 | PyObject *gdbpy_gdb_error; | |
98 | ||
99 | /* The `gdb.MemoryError' exception. */ | |
100 | PyObject *gdbpy_gdb_memory_error; | |
101 | ||
d452c4bc UW |
102 | /* Architecture and language to be used in callbacks from |
103 | the Python interpreter. */ | |
104 | struct gdbarch *python_gdbarch; | |
105 | const struct language_defn *python_language; | |
106 | ||
107 | /* Restore global language and architecture and Python GIL state | |
108 | when leaving the Python interpreter. */ | |
109 | ||
110 | struct python_env | |
111 | { | |
112 | PyGILState_STATE state; | |
113 | struct gdbarch *gdbarch; | |
114 | const struct language_defn *language; | |
8dc78533 | 115 | PyObject *error_type, *error_value, *error_traceback; |
d452c4bc UW |
116 | }; |
117 | ||
118 | static void | |
119 | restore_python_env (void *p) | |
120 | { | |
121 | struct python_env *env = (struct python_env *)p; | |
d59b6f6c | 122 | |
8dc78533 JK |
123 | /* Leftover Python error is forbidden by Python Exception Handling. */ |
124 | if (PyErr_Occurred ()) | |
125 | { | |
126 | /* This order is similar to the one calling error afterwards. */ | |
127 | gdbpy_print_stack (); | |
128 | warning (_("internal error: Unhandled Python exception")); | |
129 | } | |
130 | ||
131 | PyErr_Restore (env->error_type, env->error_value, env->error_traceback); | |
132 | ||
d452c4bc UW |
133 | PyGILState_Release (env->state); |
134 | python_gdbarch = env->gdbarch; | |
135 | python_language = env->language; | |
136 | xfree (env); | |
137 | } | |
138 | ||
139 | /* Called before entering the Python interpreter to install the | |
140 | current language and architecture to be used for Python values. */ | |
141 | ||
142 | struct cleanup * | |
143 | ensure_python_env (struct gdbarch *gdbarch, | |
144 | const struct language_defn *language) | |
145 | { | |
146 | struct python_env *env = xmalloc (sizeof *env); | |
147 | ||
148 | env->state = PyGILState_Ensure (); | |
149 | env->gdbarch = python_gdbarch; | |
150 | env->language = python_language; | |
151 | ||
152 | python_gdbarch = gdbarch; | |
153 | python_language = language; | |
154 | ||
8dc78533 JK |
155 | /* Save it and ensure ! PyErr_Occurred () afterwards. */ |
156 | PyErr_Fetch (&env->error_type, &env->error_value, &env->error_traceback); | |
157 | ||
d452c4bc UW |
158 | return make_cleanup (restore_python_env, env); |
159 | } | |
160 | ||
522002f9 TT |
161 | /* Clear the quit flag. */ |
162 | ||
163 | void | |
164 | clear_quit_flag (void) | |
165 | { | |
166 | /* This clears the flag as a side effect. */ | |
167 | PyOS_InterruptOccurred (); | |
168 | } | |
169 | ||
170 | /* Set the quit flag. */ | |
171 | ||
172 | void | |
173 | set_quit_flag (void) | |
174 | { | |
175 | PyErr_SetInterrupt (); | |
176 | } | |
177 | ||
178 | /* Return true if the quit flag has been set, false otherwise. */ | |
179 | ||
180 | int | |
181 | check_quit_flag (void) | |
182 | { | |
183 | return PyOS_InterruptOccurred (); | |
184 | } | |
185 | ||
8315665e YPK |
186 | /* Evaluate a Python command like PyRun_SimpleString, but uses |
187 | Py_single_input which prints the result of expressions, and does | |
188 | not automatically print the stack on errors. */ | |
189 | ||
190 | static int | |
191 | eval_python_command (const char *command) | |
192 | { | |
193 | PyObject *m, *d, *v; | |
194 | ||
195 | m = PyImport_AddModule ("__main__"); | |
196 | if (m == NULL) | |
197 | return -1; | |
198 | ||
199 | d = PyModule_GetDict (m); | |
200 | if (d == NULL) | |
201 | return -1; | |
202 | v = PyRun_StringFlags (command, Py_single_input, d, d, NULL); | |
203 | if (v == NULL) | |
204 | return -1; | |
205 | ||
206 | Py_DECREF (v); | |
9a27f2c6 | 207 | #ifndef IS_PY3K |
8315665e YPK |
208 | if (Py_FlushLine ()) |
209 | PyErr_Clear (); | |
9a27f2c6 | 210 | #endif |
8315665e YPK |
211 | |
212 | return 0; | |
213 | } | |
214 | ||
215 | /* Implementation of the gdb "python-interactive" command. */ | |
216 | ||
217 | static void | |
218 | python_interactive_command (char *arg, int from_tty) | |
219 | { | |
220 | struct cleanup *cleanup; | |
221 | int err; | |
222 | ||
223 | cleanup = make_cleanup_restore_integer (&interpreter_async); | |
224 | interpreter_async = 0; | |
225 | ||
529480d0 | 226 | arg = skip_spaces (arg); |
8315665e YPK |
227 | |
228 | ensure_python_env (get_current_arch (), current_language); | |
229 | ||
230 | if (arg && *arg) | |
231 | { | |
232 | int len = strlen (arg); | |
233 | char *script = xmalloc (len + 2); | |
234 | ||
235 | strcpy (script, arg); | |
236 | script[len] = '\n'; | |
237 | script[len + 1] = '\0'; | |
238 | err = eval_python_command (script); | |
239 | xfree (script); | |
240 | } | |
241 | else | |
242 | { | |
243 | err = PyRun_InteractiveLoop (instream, "<stdin>"); | |
244 | dont_repeat (); | |
245 | } | |
246 | ||
247 | if (err) | |
248 | { | |
249 | gdbpy_print_stack (); | |
250 | error (_("Error while executing Python code.")); | |
251 | } | |
252 | ||
253 | do_cleanups (cleanup); | |
254 | } | |
255 | ||
4c63965b JK |
256 | /* A wrapper around PyRun_SimpleFile. FILE is the Python script to run |
257 | named FILENAME. | |
258 | ||
259 | On Windows hosts few users would build Python themselves (this is no | |
260 | trivial task on this platform), and thus use binaries built by | |
261 | someone else instead. There may happen situation where the Python | |
262 | library and GDB are using two different versions of the C runtime | |
263 | library. Python, being built with VC, would use one version of the | |
264 | msvcr DLL (Eg. msvcr100.dll), while MinGW uses msvcrt.dll. | |
265 | A FILE * from one runtime does not necessarily operate correctly in | |
7ed7d719 JB |
266 | the other runtime. |
267 | ||
4c63965b JK |
268 | To work around this potential issue, we create on Windows hosts the |
269 | FILE object using Python routines, thus making sure that it is | |
270 | compatible with the Python library. */ | |
7ed7d719 JB |
271 | |
272 | static void | |
4c63965b | 273 | python_run_simple_file (FILE *file, const char *filename) |
7ed7d719 | 274 | { |
4c63965b JK |
275 | #ifndef _WIN32 |
276 | ||
277 | PyRun_SimpleFile (file, filename); | |
278 | ||
279 | #else /* _WIN32 */ | |
280 | ||
3ab1ec27 | 281 | char *full_path; |
7ed7d719 JB |
282 | PyObject *python_file; |
283 | struct cleanup *cleanup; | |
284 | ||
3ab1ec27 PM |
285 | /* Because we have a string for a filename, and are using Python to |
286 | open the file, we need to expand any tilde in the path first. */ | |
287 | full_path = tilde_expand (filename); | |
288 | cleanup = make_cleanup (xfree, full_path); | |
289 | python_file = PyFile_FromString (full_path, "r"); | |
290 | if (! python_file) | |
291 | { | |
292 | do_cleanups (cleanup); | |
293 | gdbpy_print_stack (); | |
294 | error (_("Error while opening file: %s"), full_path); | |
295 | } | |
296 | ||
7ed7d719 JB |
297 | make_cleanup_py_decref (python_file); |
298 | PyRun_SimpleFile (PyFile_AsFile (python_file), filename); | |
299 | do_cleanups (cleanup); | |
4c63965b JK |
300 | |
301 | #endif /* _WIN32 */ | |
7ed7d719 | 302 | } |
d452c4bc | 303 | |
d57a3c85 TJB |
304 | /* Given a command_line, return a command string suitable for passing |
305 | to Python. Lines in the string are separated by newlines. The | |
306 | return value is allocated using xmalloc and the caller is | |
307 | responsible for freeing it. */ | |
308 | ||
309 | static char * | |
310 | compute_python_string (struct command_line *l) | |
311 | { | |
312 | struct command_line *iter; | |
313 | char *script = NULL; | |
314 | int size = 0; | |
315 | int here; | |
316 | ||
317 | for (iter = l; iter; iter = iter->next) | |
318 | size += strlen (iter->line) + 1; | |
319 | ||
320 | script = xmalloc (size + 1); | |
321 | here = 0; | |
322 | for (iter = l; iter; iter = iter->next) | |
323 | { | |
324 | int len = strlen (iter->line); | |
d59b6f6c | 325 | |
d57a3c85 TJB |
326 | strcpy (&script[here], iter->line); |
327 | here += len; | |
328 | script[here++] = '\n'; | |
329 | } | |
330 | script[here] = '\0'; | |
331 | return script; | |
332 | } | |
333 | ||
334 | /* Take a command line structure representing a 'python' command, and | |
335 | evaluate its body using the Python interpreter. */ | |
336 | ||
337 | void | |
338 | eval_python_from_control_command (struct command_line *cmd) | |
339 | { | |
12453b93 | 340 | int ret; |
d57a3c85 | 341 | char *script; |
ca30a762 | 342 | struct cleanup *cleanup; |
d57a3c85 TJB |
343 | |
344 | if (cmd->body_count != 1) | |
345 | error (_("Invalid \"python\" block structure.")); | |
346 | ||
d452c4bc | 347 | cleanup = ensure_python_env (get_current_arch (), current_language); |
ca30a762 | 348 | |
d57a3c85 | 349 | script = compute_python_string (cmd->body_list[0]); |
12453b93 | 350 | ret = PyRun_SimpleString (script); |
d57a3c85 | 351 | xfree (script); |
12453b93 | 352 | if (ret) |
80b6e756 | 353 | error (_("Error while executing Python code.")); |
ca30a762 TT |
354 | |
355 | do_cleanups (cleanup); | |
d57a3c85 TJB |
356 | } |
357 | ||
358 | /* Implementation of the gdb "python" command. */ | |
359 | ||
360 | static void | |
361 | python_command (char *arg, int from_tty) | |
362 | { | |
ca30a762 | 363 | struct cleanup *cleanup; |
ca30a762 | 364 | |
d59b6f6c | 365 | cleanup = ensure_python_env (get_current_arch (), current_language); |
b4a14fd0 PA |
366 | |
367 | make_cleanup_restore_integer (&interpreter_async); | |
368 | interpreter_async = 0; | |
369 | ||
529480d0 | 370 | arg = skip_spaces (arg); |
d57a3c85 TJB |
371 | if (arg && *arg) |
372 | { | |
12453b93 | 373 | if (PyRun_SimpleString (arg)) |
80b6e756 | 374 | error (_("Error while executing Python code.")); |
d57a3c85 TJB |
375 | } |
376 | else | |
377 | { | |
378 | struct command_line *l = get_command_line (python_control, ""); | |
d59b6f6c | 379 | |
ca30a762 | 380 | make_cleanup_free_command_lines (&l); |
d57a3c85 | 381 | execute_control_command_untraced (l); |
d57a3c85 | 382 | } |
ca30a762 TT |
383 | |
384 | do_cleanups (cleanup); | |
d57a3c85 TJB |
385 | } |
386 | ||
387 | \f | |
388 | ||
389 | /* Transform a gdb parameters's value into a Python value. May return | |
390 | NULL (and set a Python exception) on error. Helper function for | |
391 | get_parameter. */ | |
d7b32ed3 PM |
392 | PyObject * |
393 | gdbpy_parameter_value (enum var_types type, void *var) | |
d57a3c85 | 394 | { |
d7b32ed3 | 395 | switch (type) |
d57a3c85 TJB |
396 | { |
397 | case var_string: | |
398 | case var_string_noescape: | |
399 | case var_optional_filename: | |
400 | case var_filename: | |
401 | case var_enum: | |
402 | { | |
d7b32ed3 | 403 | char *str = * (char **) var; |
d59b6f6c | 404 | |
d57a3c85 TJB |
405 | if (! str) |
406 | str = ""; | |
407 | return PyString_Decode (str, strlen (str), host_charset (), NULL); | |
408 | } | |
409 | ||
410 | case var_boolean: | |
411 | { | |
d7b32ed3 | 412 | if (* (int *) var) |
d57a3c85 TJB |
413 | Py_RETURN_TRUE; |
414 | else | |
415 | Py_RETURN_FALSE; | |
416 | } | |
417 | ||
418 | case var_auto_boolean: | |
419 | { | |
d7b32ed3 | 420 | enum auto_boolean ab = * (enum auto_boolean *) var; |
d59b6f6c | 421 | |
d57a3c85 TJB |
422 | if (ab == AUTO_BOOLEAN_TRUE) |
423 | Py_RETURN_TRUE; | |
424 | else if (ab == AUTO_BOOLEAN_FALSE) | |
425 | Py_RETURN_FALSE; | |
426 | else | |
427 | Py_RETURN_NONE; | |
428 | } | |
429 | ||
430 | case var_integer: | |
d7b32ed3 | 431 | if ((* (int *) var) == INT_MAX) |
d57a3c85 TJB |
432 | Py_RETURN_NONE; |
433 | /* Fall through. */ | |
434 | case var_zinteger: | |
d7b32ed3 | 435 | return PyLong_FromLong (* (int *) var); |
d57a3c85 TJB |
436 | |
437 | case var_uinteger: | |
438 | { | |
d7b32ed3 | 439 | unsigned int val = * (unsigned int *) var; |
d59b6f6c | 440 | |
d57a3c85 TJB |
441 | if (val == UINT_MAX) |
442 | Py_RETURN_NONE; | |
443 | return PyLong_FromUnsignedLong (val); | |
444 | } | |
445 | } | |
446 | ||
044c0f87 PM |
447 | return PyErr_Format (PyExc_RuntimeError, |
448 | _("Programmer error: unhandled type.")); | |
d57a3c85 TJB |
449 | } |
450 | ||
451 | /* A Python function which returns a gdb parameter's value as a Python | |
452 | value. */ | |
453 | ||
d7b32ed3 | 454 | PyObject * |
8f500870 | 455 | gdbpy_parameter (PyObject *self, PyObject *args) |
d57a3c85 TJB |
456 | { |
457 | struct cmd_list_element *alias, *prefix, *cmd; | |
ddd49eee TT |
458 | const char *arg; |
459 | char *newarg; | |
cc924cad | 460 | int found = -1; |
d57a3c85 TJB |
461 | volatile struct gdb_exception except; |
462 | ||
463 | if (! PyArg_ParseTuple (args, "s", &arg)) | |
464 | return NULL; | |
465 | ||
466 | newarg = concat ("show ", arg, (char *) NULL); | |
467 | ||
468 | TRY_CATCH (except, RETURN_MASK_ALL) | |
469 | { | |
cc924cad | 470 | found = lookup_cmd_composition (newarg, &alias, &prefix, &cmd); |
d57a3c85 TJB |
471 | } |
472 | xfree (newarg); | |
473 | GDB_PY_HANDLE_EXCEPTION (except); | |
cc924cad TJB |
474 | if (!found) |
475 | return PyErr_Format (PyExc_RuntimeError, | |
044c0f87 | 476 | _("Could not find parameter `%s'."), arg); |
d57a3c85 TJB |
477 | |
478 | if (! cmd->var) | |
044c0f87 PM |
479 | return PyErr_Format (PyExc_RuntimeError, |
480 | _("`%s' is not a parameter."), arg); | |
d7b32ed3 | 481 | return gdbpy_parameter_value (cmd->var_type, cmd->var); |
d57a3c85 TJB |
482 | } |
483 | ||
f870a310 TT |
484 | /* Wrapper for target_charset. */ |
485 | ||
486 | static PyObject * | |
487 | gdbpy_target_charset (PyObject *self, PyObject *args) | |
488 | { | |
489 | const char *cset = target_charset (python_gdbarch); | |
d59b6f6c | 490 | |
f870a310 TT |
491 | return PyUnicode_Decode (cset, strlen (cset), host_charset (), NULL); |
492 | } | |
493 | ||
494 | /* Wrapper for target_wide_charset. */ | |
495 | ||
496 | static PyObject * | |
497 | gdbpy_target_wide_charset (PyObject *self, PyObject *args) | |
498 | { | |
499 | const char *cset = target_wide_charset (python_gdbarch); | |
d59b6f6c | 500 | |
f870a310 TT |
501 | return PyUnicode_Decode (cset, strlen (cset), host_charset (), NULL); |
502 | } | |
503 | ||
d57a3c85 TJB |
504 | /* A Python function which evaluates a string using the gdb CLI. */ |
505 | ||
506 | static PyObject * | |
bc9f0842 | 507 | execute_gdb_command (PyObject *self, PyObject *args, PyObject *kw) |
d57a3c85 | 508 | { |
ddd49eee | 509 | const char *arg; |
bc9f0842 TT |
510 | PyObject *from_tty_obj = NULL, *to_string_obj = NULL; |
511 | int from_tty, to_string; | |
d57a3c85 | 512 | volatile struct gdb_exception except; |
bc9f0842 TT |
513 | static char *keywords[] = {"command", "from_tty", "to_string", NULL }; |
514 | char *result = NULL; | |
d57a3c85 | 515 | |
bc9f0842 TT |
516 | if (! PyArg_ParseTupleAndKeywords (args, kw, "s|O!O!", keywords, &arg, |
517 | &PyBool_Type, &from_tty_obj, | |
518 | &PyBool_Type, &to_string_obj)) | |
d57a3c85 TJB |
519 | return NULL; |
520 | ||
12453b93 TJB |
521 | from_tty = 0; |
522 | if (from_tty_obj) | |
523 | { | |
bc9f0842 | 524 | int cmp = PyObject_IsTrue (from_tty_obj); |
12453b93 | 525 | if (cmp < 0) |
bc9f0842 | 526 | return NULL; |
12453b93 TJB |
527 | from_tty = cmp; |
528 | } | |
529 | ||
bc9f0842 TT |
530 | to_string = 0; |
531 | if (to_string_obj) | |
532 | { | |
533 | int cmp = PyObject_IsTrue (to_string_obj); | |
534 | if (cmp < 0) | |
535 | return NULL; | |
536 | to_string = cmp; | |
537 | } | |
538 | ||
d57a3c85 TJB |
539 | TRY_CATCH (except, RETURN_MASK_ALL) |
540 | { | |
86c6265d TT |
541 | /* Copy the argument text in case the command modifies it. */ |
542 | char *copy = xstrdup (arg); | |
543 | struct cleanup *cleanup = make_cleanup (xfree, copy); | |
bc9f0842 | 544 | |
b4a14fd0 PA |
545 | make_cleanup_restore_integer (&interpreter_async); |
546 | interpreter_async = 0; | |
547 | ||
47a80e90 | 548 | prevent_dont_repeat (); |
bc9f0842 | 549 | if (to_string) |
5da1313b JK |
550 | result = execute_command_to_string (copy, from_tty); |
551 | else | |
bc9f0842 | 552 | { |
5da1313b JK |
553 | result = NULL; |
554 | execute_command (copy, from_tty); | |
bc9f0842 | 555 | } |
d59b6f6c | 556 | |
86c6265d | 557 | do_cleanups (cleanup); |
d57a3c85 TJB |
558 | } |
559 | GDB_PY_HANDLE_EXCEPTION (except); | |
560 | ||
347bddb7 PA |
561 | /* Do any commands attached to breakpoint we stopped at. */ |
562 | bpstat_do_actions (); | |
d57a3c85 | 563 | |
bc9f0842 TT |
564 | if (result) |
565 | { | |
566 | PyObject *r = PyString_FromString (result); | |
567 | xfree (result); | |
568 | return r; | |
569 | } | |
d57a3c85 TJB |
570 | Py_RETURN_NONE; |
571 | } | |
572 | ||
cb2e07a6 PM |
573 | /* Implementation of gdb.solib_name (Long) -> String. |
574 | Returns the name of the shared library holding a given address, or None. */ | |
575 | ||
576 | static PyObject * | |
577 | gdbpy_solib_name (PyObject *self, PyObject *args) | |
578 | { | |
579 | char *soname; | |
580 | PyObject *str_obj; | |
74aedc46 TT |
581 | gdb_py_longest pc; |
582 | ||
583 | if (!PyArg_ParseTuple (args, GDB_PY_LL_ARG, &pc)) | |
cb2e07a6 PM |
584 | return NULL; |
585 | ||
586 | soname = solib_name_from_address (current_program_space, pc); | |
587 | if (soname) | |
588 | str_obj = PyString_Decode (soname, strlen (soname), host_charset (), NULL); | |
589 | else | |
590 | { | |
591 | str_obj = Py_None; | |
592 | Py_INCREF (Py_None); | |
593 | } | |
594 | ||
595 | return str_obj; | |
596 | } | |
597 | ||
598 | /* A Python function which is a wrapper for decode_line_1. */ | |
599 | ||
600 | static PyObject * | |
601 | gdbpy_decode_line (PyObject *self, PyObject *args) | |
602 | { | |
9a2b4c1b MS |
603 | struct symtabs_and_lines sals = { NULL, 0 }; /* Initialize to |
604 | appease gcc. */ | |
cb2e07a6 | 605 | struct symtab_and_line sal; |
ddd49eee | 606 | const char *arg = NULL; |
9bc3523d | 607 | char *copy_to_free = NULL, *copy = NULL; |
cb2e07a6 PM |
608 | struct cleanup *cleanups; |
609 | PyObject *result = NULL; | |
610 | PyObject *return_result = NULL; | |
611 | PyObject *unparsed = NULL; | |
612 | volatile struct gdb_exception except; | |
613 | ||
614 | if (! PyArg_ParseTuple (args, "|s", &arg)) | |
615 | return NULL; | |
616 | ||
5d9c5995 | 617 | cleanups = make_cleanup (null_cleanup, NULL); |
cb2e07a6 | 618 | |
9bc3523d | 619 | sals.sals = NULL; |
cb2e07a6 PM |
620 | TRY_CATCH (except, RETURN_MASK_ALL) |
621 | { | |
622 | if (arg) | |
623 | { | |
ddd49eee | 624 | copy = xstrdup (arg); |
9bc3523d | 625 | copy_to_free = copy; |
f8eba3c6 | 626 | sals = decode_line_1 (©, 0, 0, 0); |
cb2e07a6 PM |
627 | } |
628 | else | |
629 | { | |
630 | set_default_source_symtab_and_line (); | |
631 | sal = get_current_source_symtab_and_line (); | |
632 | sals.sals = &sal; | |
633 | sals.nelts = 1; | |
634 | } | |
635 | } | |
9bc3523d TT |
636 | |
637 | if (sals.sals != NULL && sals.sals != &sal) | |
638 | { | |
639 | make_cleanup (xfree, copy_to_free); | |
640 | make_cleanup (xfree, sals.sals); | |
641 | } | |
642 | ||
cb2e07a6 PM |
643 | if (except.reason < 0) |
644 | { | |
645 | do_cleanups (cleanups); | |
646 | /* We know this will always throw. */ | |
647 | GDB_PY_HANDLE_EXCEPTION (except); | |
648 | } | |
649 | ||
650 | if (sals.nelts) | |
651 | { | |
652 | int i; | |
653 | ||
654 | result = PyTuple_New (sals.nelts); | |
655 | if (! result) | |
656 | goto error; | |
657 | for (i = 0; i < sals.nelts; ++i) | |
658 | { | |
659 | PyObject *obj; | |
cb2e07a6 PM |
660 | |
661 | obj = symtab_and_line_to_sal_object (sals.sals[i]); | |
662 | if (! obj) | |
663 | { | |
664 | Py_DECREF (result); | |
665 | goto error; | |
666 | } | |
667 | ||
668 | PyTuple_SetItem (result, i, obj); | |
669 | } | |
670 | } | |
671 | else | |
672 | { | |
673 | result = Py_None; | |
674 | Py_INCREF (Py_None); | |
675 | } | |
676 | ||
677 | return_result = PyTuple_New (2); | |
678 | if (! return_result) | |
679 | { | |
680 | Py_DECREF (result); | |
681 | goto error; | |
682 | } | |
683 | ||
684 | if (copy && strlen (copy) > 0) | |
9bc3523d TT |
685 | { |
686 | unparsed = PyString_FromString (copy); | |
687 | if (unparsed == NULL) | |
688 | { | |
689 | Py_DECREF (result); | |
690 | Py_DECREF (return_result); | |
691 | return_result = NULL; | |
692 | goto error; | |
693 | } | |
694 | } | |
cb2e07a6 PM |
695 | else |
696 | { | |
697 | unparsed = Py_None; | |
698 | Py_INCREF (Py_None); | |
699 | } | |
700 | ||
701 | PyTuple_SetItem (return_result, 0, unparsed); | |
702 | PyTuple_SetItem (return_result, 1, result); | |
703 | ||
9bc3523d | 704 | error: |
cb2e07a6 PM |
705 | do_cleanups (cleanups); |
706 | ||
707 | return return_result; | |
cb2e07a6 PM |
708 | } |
709 | ||
57a1d736 TT |
710 | /* Parse a string and evaluate it as an expression. */ |
711 | static PyObject * | |
712 | gdbpy_parse_and_eval (PyObject *self, PyObject *args) | |
713 | { | |
ddd49eee | 714 | const char *expr_str; |
57a1d736 TT |
715 | struct value *result = NULL; |
716 | volatile struct gdb_exception except; | |
717 | ||
718 | if (!PyArg_ParseTuple (args, "s", &expr_str)) | |
719 | return NULL; | |
720 | ||
721 | TRY_CATCH (except, RETURN_MASK_ALL) | |
722 | { | |
ddd49eee TT |
723 | char *copy = xstrdup (expr_str); |
724 | struct cleanup *cleanup = make_cleanup (xfree, copy); | |
725 | ||
726 | result = parse_and_eval (copy); | |
727 | do_cleanups (cleanup); | |
57a1d736 TT |
728 | } |
729 | GDB_PY_HANDLE_EXCEPTION (except); | |
730 | ||
731 | return value_to_value_object (result); | |
732 | } | |
733 | ||
7efc75aa SCR |
734 | /* Implementation of gdb.find_pc_line function. |
735 | Returns the gdb.Symtab_and_line object corresponding to a PC value. */ | |
736 | ||
737 | static PyObject * | |
738 | gdbpy_find_pc_line (PyObject *self, PyObject *args) | |
739 | { | |
29ca12b3 | 740 | gdb_py_ulongest pc_llu; |
9e974e55 | 741 | volatile struct gdb_exception except; |
62d7fb51 | 742 | PyObject *result = NULL; /* init for gcc -Wall */ |
7efc75aa SCR |
743 | |
744 | if (!PyArg_ParseTuple (args, GDB_PY_LLU_ARG, &pc_llu)) | |
745 | return NULL; | |
746 | ||
9e974e55 TT |
747 | TRY_CATCH (except, RETURN_MASK_ALL) |
748 | { | |
749 | struct symtab_and_line sal; | |
750 | CORE_ADDR pc; | |
751 | ||
752 | pc = (CORE_ADDR) pc_llu; | |
753 | sal = find_pc_line (pc, 0); | |
754 | result = symtab_and_line_to_sal_object (sal); | |
755 | } | |
756 | GDB_PY_HANDLE_EXCEPTION (except); | |
757 | ||
758 | return result; | |
7efc75aa SCR |
759 | } |
760 | ||
d234ef5c | 761 | /* Read a file as Python code. |
4c63965b | 762 | FILE is the file to run. FILENAME is name of the file FILE. |
d234ef5c DE |
763 | This does not throw any errors. If an exception occurs python will print |
764 | the traceback and clear the error indicator. */ | |
973817a3 JB |
765 | |
766 | void | |
4c63965b | 767 | source_python_script (FILE *file, const char *filename) |
973817a3 | 768 | { |
eb5cda86 | 769 | struct cleanup *cleanup; |
973817a3 | 770 | |
eb5cda86 | 771 | cleanup = ensure_python_env (get_current_arch (), current_language); |
4c63965b | 772 | python_run_simple_file (file, filename); |
eb5cda86 | 773 | do_cleanups (cleanup); |
973817a3 JB |
774 | } |
775 | ||
d57a3c85 TJB |
776 | \f |
777 | ||
ca5c20b6 PM |
778 | /* Posting and handling events. */ |
779 | ||
780 | /* A single event. */ | |
781 | struct gdbpy_event | |
782 | { | |
783 | /* The Python event. This is just a callable object. */ | |
784 | PyObject *event; | |
785 | /* The next event. */ | |
786 | struct gdbpy_event *next; | |
787 | }; | |
788 | ||
789 | /* All pending events. */ | |
790 | static struct gdbpy_event *gdbpy_event_list; | |
791 | /* The final link of the event list. */ | |
792 | static struct gdbpy_event **gdbpy_event_list_end; | |
793 | ||
794 | /* We use a file handler, and not an async handler, so that we can | |
795 | wake up the main thread even when it is blocked in poll(). */ | |
4a532131 | 796 | static struct serial *gdbpy_event_fds[2]; |
ca5c20b6 PM |
797 | |
798 | /* The file handler callback. This reads from the internal pipe, and | |
799 | then processes the Python event queue. This will always be run in | |
800 | the main gdb thread. */ | |
4a532131 | 801 | |
ca5c20b6 | 802 | static void |
4a532131 | 803 | gdbpy_run_events (struct serial *scb, void *context) |
ca5c20b6 PM |
804 | { |
805 | struct cleanup *cleanup; | |
ca5c20b6 PM |
806 | |
807 | cleanup = ensure_python_env (get_current_arch (), current_language); | |
808 | ||
4a532131 PA |
809 | /* Flush the fd. Do this before flushing the events list, so that |
810 | any new event post afterwards is sure to re-awake the event | |
811 | loop. */ | |
812 | while (serial_readchar (gdbpy_event_fds[0], 0) >= 0) | |
813 | ; | |
ca5c20b6 PM |
814 | |
815 | while (gdbpy_event_list) | |
816 | { | |
817 | /* Dispatching the event might push a new element onto the event | |
818 | loop, so we update here "atomically enough". */ | |
819 | struct gdbpy_event *item = gdbpy_event_list; | |
820 | gdbpy_event_list = gdbpy_event_list->next; | |
821 | if (gdbpy_event_list == NULL) | |
822 | gdbpy_event_list_end = &gdbpy_event_list; | |
823 | ||
824 | /* Ignore errors. */ | |
825 | if (PyObject_CallObject (item->event, NULL) == NULL) | |
826 | PyErr_Clear (); | |
827 | ||
828 | Py_DECREF (item->event); | |
829 | xfree (item); | |
830 | } | |
831 | ||
832 | do_cleanups (cleanup); | |
833 | } | |
834 | ||
835 | /* Submit an event to the gdb thread. */ | |
836 | static PyObject * | |
837 | gdbpy_post_event (PyObject *self, PyObject *args) | |
838 | { | |
839 | struct gdbpy_event *event; | |
840 | PyObject *func; | |
841 | int wakeup; | |
842 | ||
843 | if (!PyArg_ParseTuple (args, "O", &func)) | |
844 | return NULL; | |
845 | ||
846 | if (!PyCallable_Check (func)) | |
847 | { | |
848 | PyErr_SetString (PyExc_RuntimeError, | |
849 | _("Posted event is not callable")); | |
850 | return NULL; | |
851 | } | |
852 | ||
853 | Py_INCREF (func); | |
854 | ||
855 | /* From here until the end of the function, we have the GIL, so we | |
856 | can operate on our global data structures without worrying. */ | |
857 | wakeup = gdbpy_event_list == NULL; | |
858 | ||
859 | event = XNEW (struct gdbpy_event); | |
860 | event->event = func; | |
861 | event->next = NULL; | |
862 | *gdbpy_event_list_end = event; | |
863 | gdbpy_event_list_end = &event->next; | |
864 | ||
865 | /* Wake up gdb when needed. */ | |
866 | if (wakeup) | |
867 | { | |
868 | char c = 'q'; /* Anything. */ | |
4a532131 PA |
869 | |
870 | if (serial_write (gdbpy_event_fds[1], &c, 1)) | |
ca5c20b6 PM |
871 | return PyErr_SetFromErrno (PyExc_IOError); |
872 | } | |
873 | ||
874 | Py_RETURN_NONE; | |
875 | } | |
876 | ||
877 | /* Initialize the Python event handler. */ | |
878 | static void | |
879 | gdbpy_initialize_events (void) | |
880 | { | |
4a532131 | 881 | if (serial_pipe (gdbpy_event_fds) == 0) |
ca5c20b6 PM |
882 | { |
883 | gdbpy_event_list_end = &gdbpy_event_list; | |
4a532131 | 884 | serial_async (gdbpy_event_fds[0], gdbpy_run_events, NULL); |
ca5c20b6 PM |
885 | } |
886 | } | |
887 | ||
d17b6f81 PM |
888 | \f |
889 | ||
890 | static void | |
891 | before_prompt_hook (const char *current_gdb_prompt) | |
892 | { | |
893 | struct cleanup *cleanup; | |
894 | char *prompt = NULL; | |
895 | ||
896 | cleanup = ensure_python_env (get_current_arch (), current_language); | |
897 | ||
b9516fa1 YPK |
898 | if (gdb_python_module |
899 | && PyObject_HasAttrString (gdb_python_module, "prompt_hook")) | |
d17b6f81 PM |
900 | { |
901 | PyObject *hook; | |
902 | ||
b9516fa1 | 903 | hook = PyObject_GetAttrString (gdb_python_module, "prompt_hook"); |
d17b6f81 PM |
904 | if (hook == NULL) |
905 | goto fail; | |
906 | ||
907 | if (PyCallable_Check (hook)) | |
908 | { | |
909 | PyObject *result; | |
910 | PyObject *current_prompt; | |
911 | ||
912 | current_prompt = PyString_FromString (current_gdb_prompt); | |
913 | if (current_prompt == NULL) | |
914 | goto fail; | |
915 | ||
916 | result = PyObject_CallFunctionObjArgs (hook, current_prompt, NULL); | |
917 | ||
918 | Py_DECREF (current_prompt); | |
919 | ||
920 | if (result == NULL) | |
921 | goto fail; | |
922 | ||
923 | make_cleanup_py_decref (result); | |
924 | ||
925 | /* Return type should be None, or a String. If it is None, | |
926 | fall through, we will not set a prompt. If it is a | |
927 | string, set PROMPT. Anything else, set an exception. */ | |
928 | if (result != Py_None && ! PyString_Check (result)) | |
929 | { | |
930 | PyErr_Format (PyExc_RuntimeError, | |
931 | _("Return from prompt_hook must " \ | |
932 | "be either a Python string, or None")); | |
933 | goto fail; | |
934 | } | |
935 | ||
936 | if (result != Py_None) | |
937 | { | |
938 | prompt = python_string_to_host_string (result); | |
939 | ||
940 | if (prompt == NULL) | |
941 | goto fail; | |
942 | else | |
943 | make_cleanup (xfree, prompt); | |
944 | } | |
945 | } | |
946 | } | |
947 | ||
948 | /* If a prompt has been set, PROMPT will not be NULL. If it is | |
949 | NULL, do not set the prompt. */ | |
950 | if (prompt != NULL) | |
ab821bc6 | 951 | set_prompt (prompt); |
d17b6f81 PM |
952 | |
953 | do_cleanups (cleanup); | |
954 | return; | |
955 | ||
956 | fail: | |
957 | gdbpy_print_stack (); | |
958 | do_cleanups (cleanup); | |
959 | return; | |
960 | } | |
961 | ||
962 | \f | |
963 | ||
d57a3c85 TJB |
964 | /* Printing. */ |
965 | ||
966 | /* A python function to write a single string using gdb's filtered | |
99c3dc11 PM |
967 | output stream . The optional keyword STREAM can be used to write |
968 | to a particular stream. The default stream is to gdb_stdout. */ | |
969 | ||
d57a3c85 | 970 | static PyObject * |
99c3dc11 | 971 | gdbpy_write (PyObject *self, PyObject *args, PyObject *kw) |
d57a3c85 | 972 | { |
ddd49eee | 973 | const char *arg; |
99c3dc11 PM |
974 | static char *keywords[] = {"text", "stream", NULL }; |
975 | int stream_type = 0; | |
adb4fe3b | 976 | volatile struct gdb_exception except; |
99c3dc11 PM |
977 | |
978 | if (! PyArg_ParseTupleAndKeywords (args, kw, "s|i", keywords, &arg, | |
979 | &stream_type)) | |
d57a3c85 | 980 | return NULL; |
99c3dc11 | 981 | |
adb4fe3b | 982 | TRY_CATCH (except, RETURN_MASK_ALL) |
99c3dc11 | 983 | { |
adb4fe3b ME |
984 | switch (stream_type) |
985 | { | |
986 | case 1: | |
987 | { | |
988 | fprintf_filtered (gdb_stderr, "%s", arg); | |
989 | break; | |
990 | } | |
991 | case 2: | |
992 | { | |
993 | fprintf_filtered (gdb_stdlog, "%s", arg); | |
994 | break; | |
995 | } | |
996 | default: | |
997 | fprintf_filtered (gdb_stdout, "%s", arg); | |
998 | } | |
99c3dc11 | 999 | } |
adb4fe3b | 1000 | GDB_PY_HANDLE_EXCEPTION (except); |
99c3dc11 | 1001 | |
d57a3c85 TJB |
1002 | Py_RETURN_NONE; |
1003 | } | |
1004 | ||
99c3dc11 PM |
1005 | /* A python function to flush a gdb stream. The optional keyword |
1006 | STREAM can be used to flush a particular stream. The default stream | |
1007 | is gdb_stdout. */ | |
1008 | ||
d57a3c85 | 1009 | static PyObject * |
99c3dc11 | 1010 | gdbpy_flush (PyObject *self, PyObject *args, PyObject *kw) |
d57a3c85 | 1011 | { |
99c3dc11 PM |
1012 | static char *keywords[] = {"stream", NULL }; |
1013 | int stream_type = 0; | |
1014 | ||
1015 | if (! PyArg_ParseTupleAndKeywords (args, kw, "|i", keywords, | |
1016 | &stream_type)) | |
1017 | return NULL; | |
1018 | ||
1019 | switch (stream_type) | |
1020 | { | |
1021 | case 1: | |
1022 | { | |
1023 | gdb_flush (gdb_stderr); | |
1024 | break; | |
1025 | } | |
1026 | case 2: | |
1027 | { | |
1028 | gdb_flush (gdb_stdlog); | |
1029 | break; | |
1030 | } | |
1031 | default: | |
1032 | gdb_flush (gdb_stdout); | |
1033 | } | |
1034 | ||
d57a3c85 TJB |
1035 | Py_RETURN_NONE; |
1036 | } | |
1037 | ||
80b6e756 PM |
1038 | /* Print a python exception trace, print just a message, or print |
1039 | nothing and clear the python exception, depending on | |
1040 | gdbpy_should_print_stack. Only call this if a python exception is | |
1041 | set. */ | |
d57a3c85 TJB |
1042 | void |
1043 | gdbpy_print_stack (void) | |
1044 | { | |
7f6a5dde TT |
1045 | volatile struct gdb_exception except; |
1046 | ||
80b6e756 PM |
1047 | /* Print "none", just clear exception. */ |
1048 | if (gdbpy_should_print_stack == python_excp_none) | |
1049 | { | |
1050 | PyErr_Clear (); | |
1051 | } | |
1052 | /* Print "full" message and backtrace. */ | |
1053 | else if (gdbpy_should_print_stack == python_excp_full) | |
0bf0f8c4 DE |
1054 | { |
1055 | PyErr_Print (); | |
1056 | /* PyErr_Print doesn't necessarily end output with a newline. | |
1057 | This works because Python's stdout/stderr is fed through | |
1058 | printf_filtered. */ | |
7f6a5dde TT |
1059 | TRY_CATCH (except, RETURN_MASK_ALL) |
1060 | { | |
1061 | begin_line (); | |
1062 | } | |
0bf0f8c4 | 1063 | } |
80b6e756 | 1064 | /* Print "message", just error print message. */ |
d57a3c85 | 1065 | else |
80b6e756 PM |
1066 | { |
1067 | PyObject *ptype, *pvalue, *ptraceback; | |
1068 | char *msg = NULL, *type = NULL; | |
1069 | ||
1070 | PyErr_Fetch (&ptype, &pvalue, &ptraceback); | |
1071 | ||
1072 | /* Fetch the error message contained within ptype, pvalue. */ | |
1073 | msg = gdbpy_exception_to_string (ptype, pvalue); | |
1074 | type = gdbpy_obj_to_string (ptype); | |
7f6a5dde TT |
1075 | |
1076 | TRY_CATCH (except, RETURN_MASK_ALL) | |
80b6e756 | 1077 | { |
7f6a5dde TT |
1078 | if (msg == NULL) |
1079 | { | |
1080 | /* An error occurred computing the string representation of the | |
1081 | error message. */ | |
1082 | fprintf_filtered (gdb_stderr, | |
1083 | _("Error occurred computing Python error" \ | |
1084 | "message.\n")); | |
1085 | } | |
1086 | else | |
1087 | fprintf_filtered (gdb_stderr, "Python Exception %s %s: \n", | |
1088 | type, msg); | |
80b6e756 | 1089 | } |
80b6e756 PM |
1090 | |
1091 | Py_XDECREF (ptype); | |
1092 | Py_XDECREF (pvalue); | |
1093 | Py_XDECREF (ptraceback); | |
1094 | xfree (msg); | |
1095 | } | |
d57a3c85 TJB |
1096 | } |
1097 | ||
89c73ade TT |
1098 | \f |
1099 | ||
fa33c3cd DE |
1100 | /* Return the current Progspace. |
1101 | There always is one. */ | |
1102 | ||
1103 | static PyObject * | |
1104 | gdbpy_get_current_progspace (PyObject *unused1, PyObject *unused2) | |
1105 | { | |
1106 | PyObject *result; | |
1107 | ||
1108 | result = pspace_to_pspace_object (current_program_space); | |
1109 | if (result) | |
1110 | Py_INCREF (result); | |
1111 | return result; | |
1112 | } | |
1113 | ||
1114 | /* Return a sequence holding all the Progspaces. */ | |
1115 | ||
1116 | static PyObject * | |
1117 | gdbpy_progspaces (PyObject *unused1, PyObject *unused2) | |
1118 | { | |
1119 | struct program_space *ps; | |
1120 | PyObject *list; | |
1121 | ||
1122 | list = PyList_New (0); | |
1123 | if (!list) | |
1124 | return NULL; | |
1125 | ||
1126 | ALL_PSPACES (ps) | |
1127 | { | |
1128 | PyObject *item = pspace_to_pspace_object (ps); | |
d59b6f6c | 1129 | |
fa33c3cd DE |
1130 | if (!item || PyList_Append (list, item) == -1) |
1131 | { | |
1132 | Py_DECREF (list); | |
1133 | return NULL; | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | return list; | |
1138 | } | |
1139 | ||
1140 | \f | |
1141 | ||
89c73ade | 1142 | /* The "current" objfile. This is set when gdb detects that a new |
8a1ea21f DE |
1143 | objfile has been loaded. It is only set for the duration of a call to |
1144 | source_python_script_for_objfile; it is NULL at other times. */ | |
89c73ade TT |
1145 | static struct objfile *gdbpy_current_objfile; |
1146 | ||
4c63965b JK |
1147 | /* Set the current objfile to OBJFILE and then read FILE named FILENAME |
1148 | as Python code. This does not throw any errors. If an exception | |
1149 | occurs python will print the traceback and clear the error indicator. */ | |
89c73ade | 1150 | |
8a1ea21f | 1151 | void |
4c63965b JK |
1152 | source_python_script_for_objfile (struct objfile *objfile, FILE *file, |
1153 | const char *filename) | |
89c73ade | 1154 | { |
89c73ade TT |
1155 | struct cleanup *cleanups; |
1156 | ||
d452c4bc | 1157 | cleanups = ensure_python_env (get_objfile_arch (objfile), current_language); |
89c73ade TT |
1158 | gdbpy_current_objfile = objfile; |
1159 | ||
4c63965b | 1160 | python_run_simple_file (file, filename); |
89c73ade TT |
1161 | |
1162 | do_cleanups (cleanups); | |
1163 | gdbpy_current_objfile = NULL; | |
89c73ade TT |
1164 | } |
1165 | ||
1166 | /* Return the current Objfile, or None if there isn't one. */ | |
8a1ea21f | 1167 | |
89c73ade TT |
1168 | static PyObject * |
1169 | gdbpy_get_current_objfile (PyObject *unused1, PyObject *unused2) | |
1170 | { | |
1171 | PyObject *result; | |
1172 | ||
1173 | if (! gdbpy_current_objfile) | |
1174 | Py_RETURN_NONE; | |
1175 | ||
1176 | result = objfile_to_objfile_object (gdbpy_current_objfile); | |
1177 | if (result) | |
1178 | Py_INCREF (result); | |
1179 | return result; | |
1180 | } | |
1181 | ||
1182 | /* Return a sequence holding all the Objfiles. */ | |
fa33c3cd | 1183 | |
89c73ade TT |
1184 | static PyObject * |
1185 | gdbpy_objfiles (PyObject *unused1, PyObject *unused2) | |
1186 | { | |
1187 | struct objfile *objf; | |
1188 | PyObject *list; | |
1189 | ||
1190 | list = PyList_New (0); | |
1191 | if (!list) | |
1192 | return NULL; | |
1193 | ||
1194 | ALL_OBJFILES (objf) | |
1195 | { | |
1196 | PyObject *item = objfile_to_objfile_object (objf); | |
d59b6f6c | 1197 | |
89c73ade TT |
1198 | if (!item || PyList_Append (list, item) == -1) |
1199 | { | |
1200 | Py_DECREF (list); | |
1201 | return NULL; | |
1202 | } | |
1203 | } | |
1204 | ||
1205 | return list; | |
1206 | } | |
1207 | ||
18a9fc12 TT |
1208 | /* Compute the list of active type printers and return it. The result |
1209 | of this function can be passed to apply_type_printers, and should | |
1210 | be freed by free_type_printers. */ | |
1211 | ||
1212 | void * | |
1213 | start_type_printers (void) | |
1214 | { | |
1215 | struct cleanup *cleanups; | |
31594462 | 1216 | PyObject *type_module, *func, *result_obj = NULL; |
18a9fc12 TT |
1217 | |
1218 | cleanups = ensure_python_env (get_current_arch (), current_language); | |
1219 | ||
1220 | type_module = PyImport_ImportModule ("gdb.types"); | |
1221 | if (type_module == NULL) | |
1222 | { | |
1223 | gdbpy_print_stack (); | |
1224 | goto done; | |
1225 | } | |
1226 | make_cleanup_py_decref (type_module); | |
1227 | ||
1228 | func = PyObject_GetAttrString (type_module, "get_type_recognizers"); | |
1229 | if (func == NULL) | |
1230 | { | |
1231 | gdbpy_print_stack (); | |
1232 | goto done; | |
1233 | } | |
1234 | make_cleanup_py_decref (func); | |
1235 | ||
1236 | result_obj = PyObject_CallFunctionObjArgs (func, (char *) NULL); | |
1237 | if (result_obj == NULL) | |
1238 | gdbpy_print_stack (); | |
1239 | ||
1240 | done: | |
1241 | do_cleanups (cleanups); | |
1242 | return result_obj; | |
1243 | } | |
1244 | ||
1245 | /* If TYPE is recognized by some type printer, return a newly | |
1246 | allocated string holding the type's replacement name. The caller | |
1247 | is responsible for freeing the string. Otherwise, return NULL. | |
1248 | ||
1249 | This function has a bit of a funny name, since it actually applies | |
1250 | recognizers, but this seemed clearer given the start_type_printers | |
1251 | and free_type_printers functions. */ | |
1252 | ||
1253 | char * | |
1254 | apply_type_printers (void *printers, struct type *type) | |
1255 | { | |
1256 | struct cleanup *cleanups; | |
1257 | PyObject *type_obj, *type_module, *func, *result_obj; | |
1258 | PyObject *printers_obj = printers; | |
1259 | char *result = NULL; | |
1260 | ||
1261 | if (printers_obj == NULL) | |
1262 | return NULL; | |
1263 | ||
1264 | cleanups = ensure_python_env (get_current_arch (), current_language); | |
1265 | ||
1266 | type_obj = type_to_type_object (type); | |
1267 | if (type_obj == NULL) | |
1268 | { | |
1269 | gdbpy_print_stack (); | |
1270 | goto done; | |
1271 | } | |
1272 | make_cleanup_py_decref (type_obj); | |
1273 | ||
1274 | type_module = PyImport_ImportModule ("gdb.types"); | |
1275 | if (type_module == NULL) | |
1276 | { | |
1277 | gdbpy_print_stack (); | |
1278 | goto done; | |
1279 | } | |
1280 | make_cleanup_py_decref (type_module); | |
1281 | ||
1282 | func = PyObject_GetAttrString (type_module, "apply_type_recognizers"); | |
1283 | if (func == NULL) | |
1284 | { | |
1285 | gdbpy_print_stack (); | |
1286 | goto done; | |
1287 | } | |
1288 | make_cleanup_py_decref (func); | |
1289 | ||
1290 | result_obj = PyObject_CallFunctionObjArgs (func, printers_obj, | |
1291 | type_obj, (char *) NULL); | |
1292 | if (result_obj == NULL) | |
1293 | { | |
1294 | gdbpy_print_stack (); | |
1295 | goto done; | |
1296 | } | |
1297 | make_cleanup_py_decref (result_obj); | |
1298 | ||
1299 | if (result_obj != Py_None) | |
1300 | { | |
1301 | result = python_string_to_host_string (result_obj); | |
1302 | if (result == NULL) | |
1303 | gdbpy_print_stack (); | |
1304 | } | |
1305 | ||
1306 | done: | |
1307 | do_cleanups (cleanups); | |
1308 | return result; | |
1309 | } | |
1310 | ||
1311 | /* Free the result of start_type_printers. */ | |
1312 | ||
1313 | void | |
1314 | free_type_printers (void *arg) | |
1315 | { | |
1316 | struct cleanup *cleanups; | |
1317 | PyObject *printers = arg; | |
1318 | ||
1319 | if (printers == NULL) | |
1320 | return; | |
1321 | ||
1322 | cleanups = ensure_python_env (get_current_arch (), current_language); | |
1323 | Py_DECREF (printers); | |
1324 | do_cleanups (cleanups); | |
1325 | } | |
1326 | ||
d57a3c85 TJB |
1327 | #else /* HAVE_PYTHON */ |
1328 | ||
8315665e YPK |
1329 | /* Dummy implementation of the gdb "python-interactive" and "python" |
1330 | command. */ | |
d57a3c85 TJB |
1331 | |
1332 | static void | |
8315665e | 1333 | python_interactive_command (char *arg, int from_tty) |
d57a3c85 | 1334 | { |
529480d0 | 1335 | arg = skip_spaces (arg); |
d57a3c85 TJB |
1336 | if (arg && *arg) |
1337 | error (_("Python scripting is not supported in this copy of GDB.")); | |
1338 | else | |
1339 | { | |
1340 | struct command_line *l = get_command_line (python_control, ""); | |
1341 | struct cleanup *cleanups = make_cleanup_free_command_lines (&l); | |
d59b6f6c | 1342 | |
d57a3c85 TJB |
1343 | execute_control_command_untraced (l); |
1344 | do_cleanups (cleanups); | |
1345 | } | |
1346 | } | |
1347 | ||
8315665e YPK |
1348 | static void |
1349 | python_command (char *arg, int from_tty) | |
1350 | { | |
1351 | python_interactive_command (arg, from_tty); | |
1352 | } | |
1353 | ||
d57a3c85 TJB |
1354 | void |
1355 | eval_python_from_control_command (struct command_line *cmd) | |
1356 | { | |
1357 | error (_("Python scripting is not supported in this copy of GDB.")); | |
1358 | } | |
1359 | ||
973817a3 | 1360 | void |
4c63965b | 1361 | source_python_script (FILE *file, const char *filename) |
973817a3 | 1362 | { |
973817a3 JB |
1363 | throw_error (UNSUPPORTED_ERROR, |
1364 | _("Python scripting is not supported in this copy of GDB.")); | |
1365 | } | |
1366 | ||
7371cf6d PM |
1367 | int |
1368 | gdbpy_should_stop (struct breakpoint_object *bp_obj) | |
1369 | { | |
1370 | internal_error (__FILE__, __LINE__, | |
1371 | _("gdbpy_should_stop called when Python scripting is " \ | |
1372 | "not supported.")); | |
1373 | } | |
1374 | ||
1375 | int | |
1376 | gdbpy_breakpoint_has_py_cond (struct breakpoint_object *bp_obj) | |
1377 | { | |
1378 | internal_error (__FILE__, __LINE__, | |
1379 | _("gdbpy_breakpoint_has_py_cond called when Python " \ | |
1380 | "scripting is not supported.")); | |
1381 | } | |
1382 | ||
18a9fc12 TT |
1383 | void * |
1384 | start_type_printers (void) | |
1385 | { | |
1386 | return NULL; | |
1387 | } | |
1388 | ||
1389 | char * | |
1390 | apply_type_printers (void *ignore, struct type *type) | |
1391 | { | |
1392 | return NULL; | |
1393 | } | |
1394 | ||
1395 | void | |
1396 | free_type_printers (void *arg) | |
1397 | { | |
1398 | } | |
1399 | ||
d57a3c85 TJB |
1400 | #endif /* HAVE_PYTHON */ |
1401 | ||
1402 | \f | |
1403 | ||
713389e0 PM |
1404 | /* Lists for 'set python' commands. */ |
1405 | ||
1406 | static struct cmd_list_element *user_set_python_list; | |
1407 | static struct cmd_list_element *user_show_python_list; | |
d57a3c85 | 1408 | |
713389e0 PM |
1409 | /* Function for use by 'set python' prefix command. */ |
1410 | ||
1411 | static void | |
1412 | user_set_python (char *args, int from_tty) | |
1413 | { | |
1414 | help_list (user_set_python_list, "set python ", all_commands, | |
1415 | gdb_stdout); | |
1416 | } | |
1417 | ||
1418 | /* Function for use by 'show python' prefix command. */ | |
1419 | ||
1420 | static void | |
1421 | user_show_python (char *args, int from_tty) | |
d57a3c85 | 1422 | { |
713389e0 | 1423 | cmd_show_list (user_show_python_list, from_tty, ""); |
d57a3c85 TJB |
1424 | } |
1425 | ||
1426 | /* Initialize the Python code. */ | |
1427 | ||
810849a3 AS |
1428 | #ifdef HAVE_PYTHON |
1429 | ||
d7de8e3c TT |
1430 | /* This is installed as a final cleanup and cleans up the |
1431 | interpreter. This lets Python's 'atexit' work. */ | |
1432 | ||
1433 | static void | |
1434 | finalize_python (void *ignore) | |
1435 | { | |
1436 | /* We don't use ensure_python_env here because if we ever ran the | |
1437 | cleanup, gdb would crash -- because the cleanup calls into the | |
1438 | Python interpreter, which we are about to destroy. It seems | |
1439 | clearer to make the needed calls explicitly here than to create a | |
1440 | cleanup and then mysteriously discard it. */ | |
b1209b03 | 1441 | (void) PyGILState_Ensure (); |
f5656ead | 1442 | python_gdbarch = target_gdbarch (); |
d7de8e3c TT |
1443 | python_language = current_language; |
1444 | ||
1445 | Py_Finalize (); | |
1446 | } | |
810849a3 | 1447 | #endif |
d7de8e3c | 1448 | |
2c0b251b PA |
1449 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1450 | extern initialize_file_ftype _initialize_python; | |
1451 | ||
d57a3c85 TJB |
1452 | void |
1453 | _initialize_python (void) | |
1454 | { | |
9a27f2c6 PK |
1455 | char *progname; |
1456 | #ifdef IS_PY3K | |
1457 | int i; | |
1458 | size_t progsize, count; | |
1459 | char *oldloc; | |
1460 | wchar_t *progname_copy; | |
1461 | #endif | |
713389e0 | 1462 | |
8315665e YPK |
1463 | add_com ("python-interactive", class_obscure, |
1464 | python_interactive_command, | |
1465 | #ifdef HAVE_PYTHON | |
1466 | _("\ | |
e3480f4a YPK |
1467 | Start an interactive Python prompt.\n\ |
1468 | \n\ | |
1469 | To return to GDB, type the EOF character (e.g., Ctrl-D on an empty\n\ | |
1470 | prompt).\n\ | |
8315665e YPK |
1471 | \n\ |
1472 | Alternatively, a single-line Python command can be given as an\n\ | |
1473 | argument, and if the command is an expression, the result will be\n\ | |
1474 | printed. For example:\n\ | |
1475 | \n\ | |
1476 | (gdb) python-interactive 2 + 3\n\ | |
1477 | 5\n\ | |
1478 | ") | |
1479 | #else /* HAVE_PYTHON */ | |
1480 | _("\ | |
1481 | Start a Python interactive prompt.\n\ | |
1482 | \n\ | |
1483 | Python scripting is not supported in this copy of GDB.\n\ | |
1484 | This command is only a placeholder.") | |
1485 | #endif /* HAVE_PYTHON */ | |
1486 | ); | |
1487 | add_com_alias ("pi", "python-interactive", class_obscure, 1); | |
1488 | ||
d57a3c85 TJB |
1489 | add_com ("python", class_obscure, python_command, |
1490 | #ifdef HAVE_PYTHON | |
1491 | _("\ | |
1492 | Evaluate a Python command.\n\ | |
1493 | \n\ | |
1494 | The command can be given as an argument, for instance:\n\ | |
1495 | \n\ | |
1496 | python print 23\n\ | |
1497 | \n\ | |
1498 | If no argument is given, the following lines are read and used\n\ | |
1499 | as the Python commands. Type a line containing \"end\" to indicate\n\ | |
1500 | the end of the command.") | |
1501 | #else /* HAVE_PYTHON */ | |
1502 | _("\ | |
1503 | Evaluate a Python command.\n\ | |
1504 | \n\ | |
1505 | Python scripting is not supported in this copy of GDB.\n\ | |
1506 | This command is only a placeholder.") | |
1507 | #endif /* HAVE_PYTHON */ | |
1508 | ); | |
8315665e | 1509 | add_com_alias ("py", "python", class_obscure, 1); |
d57a3c85 | 1510 | |
713389e0 PM |
1511 | /* Add set/show python print-stack. */ |
1512 | add_prefix_cmd ("python", no_class, user_show_python, | |
1513 | _("Prefix command for python preference settings."), | |
1514 | &user_show_python_list, "show python ", 0, | |
1515 | &showlist); | |
1516 | ||
1517 | add_prefix_cmd ("python", no_class, user_set_python, | |
1518 | _("Prefix command for python preference settings."), | |
1519 | &user_set_python_list, "set python ", 0, | |
1520 | &setlist); | |
1521 | ||
80b6e756 PM |
1522 | add_setshow_enum_cmd ("print-stack", no_class, python_excp_enums, |
1523 | &gdbpy_should_print_stack, _("\ | |
1524 | Set mode for Python stack dump on error."), _("\ | |
1525 | Show the mode of Python stack printing on error."), _("\ | |
1526 | none == no stack or message will be printed.\n\ | |
1527 | full == a message and a stack will be printed.\n\ | |
1528 | message == an error message without a stack will be printed."), | |
1529 | NULL, NULL, | |
1530 | &user_set_python_list, | |
1531 | &user_show_python_list); | |
d57a3c85 TJB |
1532 | |
1533 | #ifdef HAVE_PYTHON | |
0c4a4063 DE |
1534 | #ifdef WITH_PYTHON_PATH |
1535 | /* Work around problem where python gets confused about where it is, | |
1536 | and then can't find its libraries, etc. | |
1537 | NOTE: Python assumes the following layout: | |
1538 | /foo/bin/python | |
1539 | /foo/lib/pythonX.Y/... | |
1540 | This must be done before calling Py_Initialize. */ | |
9a27f2c6 PK |
1541 | progname = concat (ldirname (python_libdir), SLASH_STRING, "bin", |
1542 | SLASH_STRING, "python", NULL); | |
1543 | #ifdef IS_PY3K | |
1544 | oldloc = setlocale (LC_ALL, NULL); | |
1545 | setlocale (LC_ALL, ""); | |
1546 | progsize = strlen (progname); | |
1547 | if (progsize == (size_t) -1) | |
1548 | { | |
1549 | fprintf (stderr, "Could not convert python path to string\n"); | |
1550 | return; | |
1551 | } | |
1552 | progname_copy = PyMem_Malloc ((progsize + 1) * sizeof (wchar_t)); | |
1553 | if (!progname_copy) | |
1554 | { | |
1555 | fprintf (stderr, "out of memory\n"); | |
1556 | return; | |
1557 | } | |
1558 | count = mbstowcs (progname_copy, progname, progsize + 1); | |
1559 | if (count == (size_t) -1) | |
1560 | { | |
1561 | fprintf (stderr, "Could not convert python path to string\n"); | |
1562 | return; | |
1563 | } | |
1564 | setlocale (LC_ALL, oldloc); | |
1565 | ||
1566 | /* Note that Py_SetProgramName expects the string it is passed to | |
1567 | remain alive for the duration of the program's execution, so | |
1568 | it is not freed after this call. */ | |
1569 | Py_SetProgramName (progname_copy); | |
1570 | #else | |
1571 | Py_SetProgramName (progname); | |
1572 | #endif | |
0c4a4063 DE |
1573 | #endif |
1574 | ||
d57a3c85 | 1575 | Py_Initialize (); |
ca30a762 | 1576 | PyEval_InitThreads (); |
d57a3c85 | 1577 | |
9a27f2c6 PK |
1578 | #ifdef IS_PY3K |
1579 | gdb_module = PyModule_Create (&GdbModuleDef); | |
1580 | /* Add _gdb module to the list of known built-in modules. */ | |
1581 | _PyImport_FixupBuiltin (gdb_module, "_gdb"); | |
1582 | #else | |
b9516fa1 | 1583 | gdb_module = Py_InitModule ("_gdb", GdbMethods); |
9a27f2c6 | 1584 | #endif |
d57a3c85 TJB |
1585 | |
1586 | /* The casts to (char*) are for python 2.4. */ | |
1587 | PyModule_AddStringConstant (gdb_module, "VERSION", (char*) version); | |
1588 | PyModule_AddStringConstant (gdb_module, "HOST_CONFIG", (char*) host_name); | |
9a2b4c1b MS |
1589 | PyModule_AddStringConstant (gdb_module, "TARGET_CONFIG", |
1590 | (char*) target_name); | |
f17618ea | 1591 | |
99c3dc11 PM |
1592 | /* Add stream constants. */ |
1593 | PyModule_AddIntConstant (gdb_module, "STDOUT", 0); | |
1594 | PyModule_AddIntConstant (gdb_module, "STDERR", 1); | |
1595 | PyModule_AddIntConstant (gdb_module, "STDLOG", 2); | |
d57a3c85 | 1596 | |
621c8364 TT |
1597 | gdbpy_gdb_error = PyErr_NewException ("gdb.error", PyExc_RuntimeError, NULL); |
1598 | PyModule_AddObject (gdb_module, "error", gdbpy_gdb_error); | |
1599 | ||
1600 | gdbpy_gdb_memory_error = PyErr_NewException ("gdb.MemoryError", | |
1601 | gdbpy_gdb_error, NULL); | |
1602 | PyModule_AddObject (gdb_module, "MemoryError", gdbpy_gdb_memory_error); | |
1603 | ||
07ca107c DE |
1604 | gdbpy_gdberror_exc = PyErr_NewException ("gdb.GdbError", NULL, NULL); |
1605 | PyModule_AddObject (gdb_module, "GdbError", gdbpy_gdberror_exc); | |
1606 | ||
037bbc8e | 1607 | gdbpy_initialize_gdb_readline (); |
8a1ea21f | 1608 | gdbpy_initialize_auto_load (); |
a08702d6 | 1609 | gdbpy_initialize_values (); |
f8f6f20b | 1610 | gdbpy_initialize_frames (); |
d8906c6f | 1611 | gdbpy_initialize_commands (); |
f3e9a817 PM |
1612 | gdbpy_initialize_symbols (); |
1613 | gdbpy_initialize_symtabs (); | |
1614 | gdbpy_initialize_blocks (); | |
bc3b79fd | 1615 | gdbpy_initialize_functions (); |
d7b32ed3 | 1616 | gdbpy_initialize_parameters (); |
2c74e833 | 1617 | gdbpy_initialize_types (); |
fa33c3cd | 1618 | gdbpy_initialize_pspace (); |
89c73ade | 1619 | gdbpy_initialize_objfile (); |
adc36818 | 1620 | gdbpy_initialize_breakpoints (); |
cc72b2a2 | 1621 | gdbpy_initialize_finishbreakpoints (); |
be759fcf | 1622 | gdbpy_initialize_lazy_string (); |
595939de PM |
1623 | gdbpy_initialize_thread (); |
1624 | gdbpy_initialize_inferior (); | |
ca5c20b6 | 1625 | gdbpy_initialize_events (); |
a08702d6 | 1626 | |
505500db SW |
1627 | gdbpy_initialize_eventregistry (); |
1628 | gdbpy_initialize_py_events (); | |
1629 | gdbpy_initialize_event (); | |
1630 | gdbpy_initialize_stop_event (); | |
1631 | gdbpy_initialize_signal_event (); | |
1632 | gdbpy_initialize_breakpoint_event (); | |
1633 | gdbpy_initialize_continue_event (); | |
1634 | gdbpy_initialize_exited_event (); | |
1635 | gdbpy_initialize_thread_event (); | |
20c168b5 | 1636 | gdbpy_initialize_new_objfile_event () ; |
bea883fd | 1637 | gdbpy_initialize_arch (); |
505500db | 1638 | |
d17b6f81 PM |
1639 | observer_attach_before_prompt (before_prompt_hook); |
1640 | ||
a6bac58e TT |
1641 | gdbpy_to_string_cst = PyString_FromString ("to_string"); |
1642 | gdbpy_children_cst = PyString_FromString ("children"); | |
1643 | gdbpy_display_hint_cst = PyString_FromString ("display_hint"); | |
d8906c6f | 1644 | gdbpy_doc_cst = PyString_FromString ("__doc__"); |
967cf477 | 1645 | gdbpy_enabled_cst = PyString_FromString ("enabled"); |
fb6a3ed3 | 1646 | gdbpy_value_cst = PyString_FromString ("value"); |
d8906c6f | 1647 | |
9dea9163 DE |
1648 | /* Release the GIL while gdb runs. */ |
1649 | PyThreadState_Swap (NULL); | |
1650 | PyEval_ReleaseLock (); | |
1651 | ||
d7de8e3c | 1652 | make_final_cleanup (finalize_python, NULL); |
9dea9163 DE |
1653 | #endif /* HAVE_PYTHON */ |
1654 | } | |
1655 | ||
1656 | #ifdef HAVE_PYTHON | |
1657 | ||
1658 | /* Perform the remaining python initializations. | |
1659 | These must be done after GDB is at least mostly initialized. | |
1660 | E.g., The "info pretty-printer" command needs the "info" prefix | |
1661 | command installed. */ | |
1662 | ||
1663 | void | |
1664 | finish_python_initialization (void) | |
1665 | { | |
b9516fa1 YPK |
1666 | PyObject *m; |
1667 | char *gdb_pythondir; | |
1668 | PyObject *sys_path; | |
9dea9163 DE |
1669 | struct cleanup *cleanup; |
1670 | ||
1671 | cleanup = ensure_python_env (get_current_arch (), current_language); | |
f17618ea | 1672 | |
b9516fa1 YPK |
1673 | /* Add the initial data-directory to sys.path. */ |
1674 | ||
1675 | gdb_pythondir = concat (gdb_datadir, SLASH_STRING, "python", NULL); | |
1676 | make_cleanup (xfree, gdb_pythondir); | |
1677 | ||
1678 | sys_path = PySys_GetObject ("path"); | |
ca30a762 | 1679 | |
9a27f2c6 PK |
1680 | /* If sys.path is not defined yet, define it first. */ |
1681 | if (!(sys_path && PyList_Check (sys_path))) | |
1682 | { | |
1683 | #ifdef IS_PY3K | |
1684 | PySys_SetPath (L""); | |
1685 | #else | |
1686 | PySys_SetPath (""); | |
1687 | #endif | |
1688 | sys_path = PySys_GetObject ("path"); | |
1689 | } | |
1690 | if (sys_path && PyList_Check (sys_path)) | |
b9516fa1 YPK |
1691 | { |
1692 | PyObject *pythondir; | |
1693 | int err; | |
1694 | ||
1695 | pythondir = PyString_FromString (gdb_pythondir); | |
1696 | if (pythondir == NULL) | |
1697 | goto fail; | |
1698 | ||
1699 | err = PyList_Insert (sys_path, 0, pythondir); | |
1700 | if (err) | |
1701 | goto fail; | |
1702 | ||
1703 | Py_DECREF (pythondir); | |
1704 | } | |
1705 | else | |
9a27f2c6 | 1706 | goto fail; |
b9516fa1 YPK |
1707 | |
1708 | /* Import the gdb module to finish the initialization, and | |
1709 | add it to __main__ for convenience. */ | |
1710 | m = PyImport_AddModule ("__main__"); | |
1711 | if (m == NULL) | |
1712 | goto fail; | |
1713 | ||
1714 | gdb_python_module = PyImport_ImportModule ("gdb"); | |
1715 | if (gdb_python_module == NULL) | |
1716 | { | |
1717 | gdbpy_print_stack (); | |
1718 | warning (_("Could not load the Python gdb module from `%s'."), | |
1719 | gdb_pythondir); | |
1720 | warning (_("Limited Python support is available from the _gdb module.")); | |
1721 | do_cleanups (cleanup); | |
1722 | return; | |
1723 | } | |
1724 | ||
1725 | if (PyModule_AddObject (m, "gdb", gdb_python_module)) | |
1726 | goto fail; | |
1727 | ||
1728 | /* Keep the reference to gdb_python_module since it is in a global | |
1729 | variable. */ | |
1730 | ||
1731 | do_cleanups (cleanup); | |
1732 | return; | |
1733 | ||
1734 | fail: | |
1735 | gdbpy_print_stack (); | |
1736 | warning (_("internal error: Unhandled Python exception")); | |
9dea9163 DE |
1737 | do_cleanups (cleanup); |
1738 | } | |
ca30a762 | 1739 | |
d57a3c85 | 1740 | #endif /* HAVE_PYTHON */ |
12453b93 TJB |
1741 | |
1742 | \f | |
1743 | ||
9dea9163 | 1744 | #ifdef HAVE_PYTHON |
12453b93 TJB |
1745 | |
1746 | static PyMethodDef GdbMethods[] = | |
1747 | { | |
1748 | { "history", gdbpy_history, METH_VARARGS, | |
1749 | "Get a value from history" }, | |
bc9f0842 | 1750 | { "execute", (PyCFunction) execute_gdb_command, METH_VARARGS | METH_KEYWORDS, |
12453b93 | 1751 | "Execute a gdb command" }, |
8f500870 | 1752 | { "parameter", gdbpy_parameter, METH_VARARGS, |
12453b93 TJB |
1753 | "Return a gdb parameter's value" }, |
1754 | ||
adc36818 PM |
1755 | { "breakpoints", gdbpy_breakpoints, METH_NOARGS, |
1756 | "Return a tuple of all breakpoint objects" }, | |
1757 | ||
b6313243 TT |
1758 | { "default_visualizer", gdbpy_default_visualizer, METH_VARARGS, |
1759 | "Find the default visualizer for a Value." }, | |
1760 | ||
fa33c3cd DE |
1761 | { "current_progspace", gdbpy_get_current_progspace, METH_NOARGS, |
1762 | "Return the current Progspace." }, | |
1763 | { "progspaces", gdbpy_progspaces, METH_NOARGS, | |
1764 | "Return a sequence of all progspaces." }, | |
1765 | ||
89c73ade TT |
1766 | { "current_objfile", gdbpy_get_current_objfile, METH_NOARGS, |
1767 | "Return the current Objfile being loaded, or None." }, | |
1768 | { "objfiles", gdbpy_objfiles, METH_NOARGS, | |
1769 | "Return a sequence of all loaded objfiles." }, | |
1770 | ||
d8e22779 TT |
1771 | { "newest_frame", gdbpy_newest_frame, METH_NOARGS, |
1772 | "newest_frame () -> gdb.Frame.\n\ | |
1773 | Return the newest frame object." }, | |
f8f6f20b TJB |
1774 | { "selected_frame", gdbpy_selected_frame, METH_NOARGS, |
1775 | "selected_frame () -> gdb.Frame.\n\ | |
1776 | Return the selected frame object." }, | |
1777 | { "frame_stop_reason_string", gdbpy_frame_stop_reason_string, METH_VARARGS, | |
1778 | "stop_reason_string (Integer) -> String.\n\ | |
1779 | Return a string explaining unwind stop reason." }, | |
1780 | ||
2c74e833 TT |
1781 | { "lookup_type", (PyCFunction) gdbpy_lookup_type, |
1782 | METH_VARARGS | METH_KEYWORDS, | |
1783 | "lookup_type (name [, block]) -> type\n\ | |
1784 | Return a Type corresponding to the given name." }, | |
f3e9a817 PM |
1785 | { "lookup_symbol", (PyCFunction) gdbpy_lookup_symbol, |
1786 | METH_VARARGS | METH_KEYWORDS, | |
1787 | "lookup_symbol (name [, block] [, domain]) -> (symbol, is_field_of_this)\n\ | |
1788 | Return a tuple with the symbol corresponding to the given name (or None) and\n\ | |
1789 | a boolean indicating if name is a field of the current implied argument\n\ | |
1790 | `this' (when the current language is object-oriented)." }, | |
6e6fbe60 DE |
1791 | { "lookup_global_symbol", (PyCFunction) gdbpy_lookup_global_symbol, |
1792 | METH_VARARGS | METH_KEYWORDS, | |
1793 | "lookup_global_symbol (name [, domain]) -> symbol\n\ | |
1794 | Return the symbol corresponding to the given name (or None)." }, | |
f3e9a817 PM |
1795 | { "block_for_pc", gdbpy_block_for_pc, METH_VARARGS, |
1796 | "Return the block containing the given pc value, or None." }, | |
cb2e07a6 PM |
1797 | { "solib_name", gdbpy_solib_name, METH_VARARGS, |
1798 | "solib_name (Long) -> String.\n\ | |
1799 | Return the name of the shared library holding a given address, or None." }, | |
1800 | { "decode_line", gdbpy_decode_line, METH_VARARGS, | |
1801 | "decode_line (String) -> Tuple. Decode a string argument the way\n\ | |
1802 | that 'break' or 'edit' does. Return a tuple containing two elements.\n\ | |
1803 | The first element contains any unparsed portion of the String parameter\n\ | |
1804 | (or None if the string was fully parsed). The second element contains\n\ | |
1805 | a tuple that contains all the locations that match, represented as\n\ | |
1806 | gdb.Symtab_and_line objects (or None)."}, | |
57a1d736 TT |
1807 | { "parse_and_eval", gdbpy_parse_and_eval, METH_VARARGS, |
1808 | "parse_and_eval (String) -> Value.\n\ | |
1809 | Parse String as an expression, evaluate it, and return the result as a Value." | |
1810 | }, | |
7efc75aa SCR |
1811 | { "find_pc_line", gdbpy_find_pc_line, METH_VARARGS, |
1812 | "find_pc_line (pc) -> Symtab_and_line.\n\ | |
1813 | Return the gdb.Symtab_and_line object corresponding to the pc value." }, | |
57a1d736 | 1814 | |
ca5c20b6 PM |
1815 | { "post_event", gdbpy_post_event, METH_VARARGS, |
1816 | "Post an event into gdb's event loop." }, | |
1817 | ||
f870a310 TT |
1818 | { "target_charset", gdbpy_target_charset, METH_NOARGS, |
1819 | "target_charset () -> string.\n\ | |
1820 | Return the name of the current target charset." }, | |
1821 | { "target_wide_charset", gdbpy_target_wide_charset, METH_NOARGS, | |
1822 | "target_wide_charset () -> string.\n\ | |
1823 | Return the name of the current target wide charset." }, | |
1824 | ||
07ca107c DE |
1825 | { "string_to_argv", gdbpy_string_to_argv, METH_VARARGS, |
1826 | "string_to_argv (String) -> Array.\n\ | |
1827 | Parse String and return an argv-like array.\n\ | |
1828 | Arguments are separate by spaces and may be quoted." | |
1829 | }, | |
99c3dc11 | 1830 | { "write", (PyCFunction)gdbpy_write, METH_VARARGS | METH_KEYWORDS, |
12453b93 | 1831 | "Write a string using gdb's filtered stream." }, |
99c3dc11 | 1832 | { "flush", (PyCFunction)gdbpy_flush, METH_VARARGS | METH_KEYWORDS, |
12453b93 | 1833 | "Flush gdb's filtered stdout stream." }, |
595939de PM |
1834 | { "selected_thread", gdbpy_selected_thread, METH_NOARGS, |
1835 | "selected_thread () -> gdb.InferiorThread.\n\ | |
1836 | Return the selected thread object." }, | |
2aa48337 KP |
1837 | { "selected_inferior", gdbpy_selected_inferior, METH_NOARGS, |
1838 | "selected_inferior () -> gdb.Inferior.\n\ | |
1839 | Return the selected inferior object." }, | |
595939de PM |
1840 | { "inferiors", gdbpy_inferiors, METH_NOARGS, |
1841 | "inferiors () -> (gdb.Inferior, ...).\n\ | |
1842 | Return a tuple containing all inferiors." }, | |
12453b93 TJB |
1843 | {NULL, NULL, 0, NULL} |
1844 | }; | |
1845 | ||
9a27f2c6 PK |
1846 | #ifdef IS_PY3K |
1847 | static struct PyModuleDef GdbModuleDef = | |
1848 | { | |
1849 | PyModuleDef_HEAD_INIT, | |
1850 | "_gdb", | |
1851 | NULL, | |
1852 | -1, | |
1853 | GdbMethods, | |
1854 | NULL, | |
1855 | NULL, | |
1856 | NULL, | |
1857 | NULL | |
1858 | }; | |
1859 | #endif | |
12453b93 | 1860 | #endif /* HAVE_PYTHON */ |