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d57a3c85 TJB |
1 | /* General python/gdb code |
2 | ||
4c38e0a4 | 3 | Copyright (C) 2008, 2009, 2010 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" |
d57a3c85 TJB |
31 | |
32 | #include <ctype.h> | |
33 | ||
34 | /* True if we should print the stack when catching a Python error, | |
35 | false otherwise. */ | |
36 | static int gdbpy_should_print_stack = 1; | |
37 | ||
38 | #ifdef HAVE_PYTHON | |
39 | ||
40 | #include "python.h" | |
41 | #include "libiberty.h" | |
42 | #include "cli/cli-decode.h" | |
43 | #include "charset.h" | |
44 | #include "top.h" | |
d57a3c85 TJB |
45 | #include "python-internal.h" |
46 | #include "version.h" | |
47 | #include "target.h" | |
48 | #include "gdbthread.h" | |
49 | ||
12453b93 | 50 | static PyMethodDef GdbMethods[]; |
d57a3c85 TJB |
51 | |
52 | PyObject *gdb_module; | |
53 | ||
a6bac58e TT |
54 | /* Some string constants we may wish to use. */ |
55 | PyObject *gdbpy_to_string_cst; | |
56 | PyObject *gdbpy_children_cst; | |
57 | PyObject *gdbpy_display_hint_cst; | |
d8906c6f TJB |
58 | PyObject *gdbpy_doc_cst; |
59 | ||
d452c4bc UW |
60 | |
61 | /* Architecture and language to be used in callbacks from | |
62 | the Python interpreter. */ | |
63 | struct gdbarch *python_gdbarch; | |
64 | const struct language_defn *python_language; | |
65 | ||
66 | /* Restore global language and architecture and Python GIL state | |
67 | when leaving the Python interpreter. */ | |
68 | ||
69 | struct python_env | |
70 | { | |
71 | PyGILState_STATE state; | |
72 | struct gdbarch *gdbarch; | |
73 | const struct language_defn *language; | |
74 | }; | |
75 | ||
76 | static void | |
77 | restore_python_env (void *p) | |
78 | { | |
79 | struct python_env *env = (struct python_env *)p; | |
80 | PyGILState_Release (env->state); | |
81 | python_gdbarch = env->gdbarch; | |
82 | python_language = env->language; | |
83 | xfree (env); | |
84 | } | |
85 | ||
86 | /* Called before entering the Python interpreter to install the | |
87 | current language and architecture to be used for Python values. */ | |
88 | ||
89 | struct cleanup * | |
90 | ensure_python_env (struct gdbarch *gdbarch, | |
91 | const struct language_defn *language) | |
92 | { | |
93 | struct python_env *env = xmalloc (sizeof *env); | |
94 | ||
95 | env->state = PyGILState_Ensure (); | |
96 | env->gdbarch = python_gdbarch; | |
97 | env->language = python_language; | |
98 | ||
99 | python_gdbarch = gdbarch; | |
100 | python_language = language; | |
101 | ||
102 | return make_cleanup (restore_python_env, env); | |
103 | } | |
104 | ||
105 | ||
d57a3c85 TJB |
106 | /* Given a command_line, return a command string suitable for passing |
107 | to Python. Lines in the string are separated by newlines. The | |
108 | return value is allocated using xmalloc and the caller is | |
109 | responsible for freeing it. */ | |
110 | ||
111 | static char * | |
112 | compute_python_string (struct command_line *l) | |
113 | { | |
114 | struct command_line *iter; | |
115 | char *script = NULL; | |
116 | int size = 0; | |
117 | int here; | |
118 | ||
119 | for (iter = l; iter; iter = iter->next) | |
120 | size += strlen (iter->line) + 1; | |
121 | ||
122 | script = xmalloc (size + 1); | |
123 | here = 0; | |
124 | for (iter = l; iter; iter = iter->next) | |
125 | { | |
126 | int len = strlen (iter->line); | |
127 | strcpy (&script[here], iter->line); | |
128 | here += len; | |
129 | script[here++] = '\n'; | |
130 | } | |
131 | script[here] = '\0'; | |
132 | return script; | |
133 | } | |
134 | ||
135 | /* Take a command line structure representing a 'python' command, and | |
136 | evaluate its body using the Python interpreter. */ | |
137 | ||
138 | void | |
139 | eval_python_from_control_command (struct command_line *cmd) | |
140 | { | |
12453b93 | 141 | int ret; |
d57a3c85 | 142 | char *script; |
ca30a762 | 143 | struct cleanup *cleanup; |
d57a3c85 TJB |
144 | |
145 | if (cmd->body_count != 1) | |
146 | error (_("Invalid \"python\" block structure.")); | |
147 | ||
d452c4bc | 148 | cleanup = ensure_python_env (get_current_arch (), current_language); |
ca30a762 | 149 | |
d57a3c85 | 150 | script = compute_python_string (cmd->body_list[0]); |
12453b93 | 151 | ret = PyRun_SimpleString (script); |
d57a3c85 | 152 | xfree (script); |
12453b93 | 153 | if (ret) |
d57a3c85 TJB |
154 | { |
155 | gdbpy_print_stack (); | |
12453b93 | 156 | error (_("Error while executing Python code.")); |
d57a3c85 | 157 | } |
ca30a762 TT |
158 | |
159 | do_cleanups (cleanup); | |
d57a3c85 TJB |
160 | } |
161 | ||
162 | /* Implementation of the gdb "python" command. */ | |
163 | ||
164 | static void | |
165 | python_command (char *arg, int from_tty) | |
166 | { | |
ca30a762 | 167 | struct cleanup *cleanup; |
d452c4bc | 168 | cleanup = ensure_python_env (get_current_arch (), current_language); |
ca30a762 | 169 | |
d57a3c85 TJB |
170 | while (arg && *arg && isspace (*arg)) |
171 | ++arg; | |
172 | if (arg && *arg) | |
173 | { | |
12453b93 | 174 | if (PyRun_SimpleString (arg)) |
d57a3c85 TJB |
175 | { |
176 | gdbpy_print_stack (); | |
12453b93 | 177 | error (_("Error while executing Python code.")); |
d57a3c85 TJB |
178 | } |
179 | } | |
180 | else | |
181 | { | |
182 | struct command_line *l = get_command_line (python_control, ""); | |
ca30a762 | 183 | make_cleanup_free_command_lines (&l); |
d57a3c85 | 184 | execute_control_command_untraced (l); |
d57a3c85 | 185 | } |
ca30a762 TT |
186 | |
187 | do_cleanups (cleanup); | |
d57a3c85 TJB |
188 | } |
189 | ||
190 | \f | |
191 | ||
192 | /* Transform a gdb parameters's value into a Python value. May return | |
193 | NULL (and set a Python exception) on error. Helper function for | |
194 | get_parameter. */ | |
d7b32ed3 PM |
195 | PyObject * |
196 | gdbpy_parameter_value (enum var_types type, void *var) | |
d57a3c85 | 197 | { |
d7b32ed3 | 198 | switch (type) |
d57a3c85 TJB |
199 | { |
200 | case var_string: | |
201 | case var_string_noescape: | |
202 | case var_optional_filename: | |
203 | case var_filename: | |
204 | case var_enum: | |
205 | { | |
d7b32ed3 | 206 | char *str = * (char **) var; |
d57a3c85 TJB |
207 | if (! str) |
208 | str = ""; | |
209 | return PyString_Decode (str, strlen (str), host_charset (), NULL); | |
210 | } | |
211 | ||
212 | case var_boolean: | |
213 | { | |
d7b32ed3 | 214 | if (* (int *) var) |
d57a3c85 TJB |
215 | Py_RETURN_TRUE; |
216 | else | |
217 | Py_RETURN_FALSE; | |
218 | } | |
219 | ||
220 | case var_auto_boolean: | |
221 | { | |
d7b32ed3 | 222 | enum auto_boolean ab = * (enum auto_boolean *) var; |
d57a3c85 TJB |
223 | if (ab == AUTO_BOOLEAN_TRUE) |
224 | Py_RETURN_TRUE; | |
225 | else if (ab == AUTO_BOOLEAN_FALSE) | |
226 | Py_RETURN_FALSE; | |
227 | else | |
228 | Py_RETURN_NONE; | |
229 | } | |
230 | ||
231 | case var_integer: | |
d7b32ed3 | 232 | if ((* (int *) var) == INT_MAX) |
d57a3c85 TJB |
233 | Py_RETURN_NONE; |
234 | /* Fall through. */ | |
235 | case var_zinteger: | |
d7b32ed3 | 236 | return PyLong_FromLong (* (int *) var); |
d57a3c85 TJB |
237 | |
238 | case var_uinteger: | |
239 | { | |
d7b32ed3 | 240 | unsigned int val = * (unsigned int *) var; |
d57a3c85 TJB |
241 | if (val == UINT_MAX) |
242 | Py_RETURN_NONE; | |
243 | return PyLong_FromUnsignedLong (val); | |
244 | } | |
245 | } | |
246 | ||
044c0f87 PM |
247 | return PyErr_Format (PyExc_RuntimeError, |
248 | _("Programmer error: unhandled type.")); | |
d57a3c85 TJB |
249 | } |
250 | ||
251 | /* A Python function which returns a gdb parameter's value as a Python | |
252 | value. */ | |
253 | ||
d7b32ed3 | 254 | PyObject * |
8f500870 | 255 | gdbpy_parameter (PyObject *self, PyObject *args) |
d57a3c85 TJB |
256 | { |
257 | struct cmd_list_element *alias, *prefix, *cmd; | |
258 | char *arg, *newarg; | |
cc924cad | 259 | int found = -1; |
d57a3c85 TJB |
260 | volatile struct gdb_exception except; |
261 | ||
262 | if (! PyArg_ParseTuple (args, "s", &arg)) | |
263 | return NULL; | |
264 | ||
265 | newarg = concat ("show ", arg, (char *) NULL); | |
266 | ||
267 | TRY_CATCH (except, RETURN_MASK_ALL) | |
268 | { | |
cc924cad | 269 | found = lookup_cmd_composition (newarg, &alias, &prefix, &cmd); |
d57a3c85 TJB |
270 | } |
271 | xfree (newarg); | |
272 | GDB_PY_HANDLE_EXCEPTION (except); | |
cc924cad TJB |
273 | if (!found) |
274 | return PyErr_Format (PyExc_RuntimeError, | |
044c0f87 | 275 | _("Could not find parameter `%s'."), arg); |
d57a3c85 TJB |
276 | |
277 | if (! cmd->var) | |
044c0f87 PM |
278 | return PyErr_Format (PyExc_RuntimeError, |
279 | _("`%s' is not a parameter."), arg); | |
d7b32ed3 | 280 | return gdbpy_parameter_value (cmd->var_type, cmd->var); |
d57a3c85 TJB |
281 | } |
282 | ||
f870a310 TT |
283 | /* Wrapper for target_charset. */ |
284 | ||
285 | static PyObject * | |
286 | gdbpy_target_charset (PyObject *self, PyObject *args) | |
287 | { | |
288 | const char *cset = target_charset (python_gdbarch); | |
289 | return PyUnicode_Decode (cset, strlen (cset), host_charset (), NULL); | |
290 | } | |
291 | ||
292 | /* Wrapper for target_wide_charset. */ | |
293 | ||
294 | static PyObject * | |
295 | gdbpy_target_wide_charset (PyObject *self, PyObject *args) | |
296 | { | |
297 | const char *cset = target_wide_charset (python_gdbarch); | |
298 | return PyUnicode_Decode (cset, strlen (cset), host_charset (), NULL); | |
299 | } | |
300 | ||
d57a3c85 TJB |
301 | /* A Python function which evaluates a string using the gdb CLI. */ |
302 | ||
303 | static PyObject * | |
304 | execute_gdb_command (PyObject *self, PyObject *args) | |
305 | { | |
f92adf3c | 306 | char *arg; |
12453b93 TJB |
307 | PyObject *from_tty_obj = NULL; |
308 | int from_tty; | |
309 | int cmp; | |
d57a3c85 | 310 | volatile struct gdb_exception except; |
d57a3c85 | 311 | |
12453b93 | 312 | if (! PyArg_ParseTuple (args, "s|O!", &arg, &PyBool_Type, &from_tty_obj)) |
d57a3c85 TJB |
313 | return NULL; |
314 | ||
12453b93 TJB |
315 | from_tty = 0; |
316 | if (from_tty_obj) | |
317 | { | |
318 | cmp = PyObject_IsTrue (from_tty_obj); | |
319 | if (cmp < 0) | |
320 | return NULL; | |
321 | from_tty = cmp; | |
322 | } | |
323 | ||
d57a3c85 TJB |
324 | TRY_CATCH (except, RETURN_MASK_ALL) |
325 | { | |
86c6265d TT |
326 | /* Copy the argument text in case the command modifies it. */ |
327 | char *copy = xstrdup (arg); | |
328 | struct cleanup *cleanup = make_cleanup (xfree, copy); | |
329 | execute_command (copy, from_tty); | |
330 | do_cleanups (cleanup); | |
d57a3c85 TJB |
331 | } |
332 | GDB_PY_HANDLE_EXCEPTION (except); | |
333 | ||
347bddb7 PA |
334 | /* Do any commands attached to breakpoint we stopped at. */ |
335 | bpstat_do_actions (); | |
d57a3c85 TJB |
336 | |
337 | Py_RETURN_NONE; | |
338 | } | |
339 | ||
57a1d736 TT |
340 | /* Parse a string and evaluate it as an expression. */ |
341 | static PyObject * | |
342 | gdbpy_parse_and_eval (PyObject *self, PyObject *args) | |
343 | { | |
344 | char *expr_str; | |
345 | struct value *result = NULL; | |
346 | volatile struct gdb_exception except; | |
347 | ||
348 | if (!PyArg_ParseTuple (args, "s", &expr_str)) | |
349 | return NULL; | |
350 | ||
351 | TRY_CATCH (except, RETURN_MASK_ALL) | |
352 | { | |
353 | result = parse_and_eval (expr_str); | |
354 | } | |
355 | GDB_PY_HANDLE_EXCEPTION (except); | |
356 | ||
357 | return value_to_value_object (result); | |
358 | } | |
359 | ||
973817a3 | 360 | /* Read a file as Python code. STREAM is the input file; FILE is the |
3f7b2faa DE |
361 | name of the file. |
362 | STREAM is not closed, that is the caller's responsibility. */ | |
973817a3 JB |
363 | |
364 | void | |
3f7b2faa | 365 | source_python_script (FILE *stream, const char *file) |
973817a3 | 366 | { |
eb5cda86 | 367 | struct cleanup *cleanup; |
973817a3 | 368 | |
eb5cda86 | 369 | cleanup = ensure_python_env (get_current_arch (), current_language); |
973817a3 JB |
370 | |
371 | PyRun_SimpleFile (stream, file); | |
372 | ||
eb5cda86 | 373 | do_cleanups (cleanup); |
973817a3 JB |
374 | } |
375 | ||
d57a3c85 TJB |
376 | \f |
377 | ||
378 | /* Printing. */ | |
379 | ||
380 | /* A python function to write a single string using gdb's filtered | |
381 | output stream. */ | |
382 | static PyObject * | |
383 | gdbpy_write (PyObject *self, PyObject *args) | |
384 | { | |
385 | char *arg; | |
386 | if (! PyArg_ParseTuple (args, "s", &arg)) | |
387 | return NULL; | |
388 | printf_filtered ("%s", arg); | |
389 | Py_RETURN_NONE; | |
390 | } | |
391 | ||
392 | /* A python function to flush gdb's filtered output stream. */ | |
393 | static PyObject * | |
394 | gdbpy_flush (PyObject *self, PyObject *args) | |
395 | { | |
396 | gdb_flush (gdb_stdout); | |
397 | Py_RETURN_NONE; | |
398 | } | |
399 | ||
400 | /* Print a python exception trace, or print nothing and clear the | |
401 | python exception, depending on gdbpy_should_print_stack. Only call | |
402 | this if a python exception is set. */ | |
403 | void | |
404 | gdbpy_print_stack (void) | |
405 | { | |
406 | if (gdbpy_should_print_stack) | |
407 | PyErr_Print (); | |
408 | else | |
409 | PyErr_Clear (); | |
410 | } | |
411 | ||
89c73ade TT |
412 | \f |
413 | ||
fa33c3cd DE |
414 | /* Return the current Progspace. |
415 | There always is one. */ | |
416 | ||
417 | static PyObject * | |
418 | gdbpy_get_current_progspace (PyObject *unused1, PyObject *unused2) | |
419 | { | |
420 | PyObject *result; | |
421 | ||
422 | result = pspace_to_pspace_object (current_program_space); | |
423 | if (result) | |
424 | Py_INCREF (result); | |
425 | return result; | |
426 | } | |
427 | ||
428 | /* Return a sequence holding all the Progspaces. */ | |
429 | ||
430 | static PyObject * | |
431 | gdbpy_progspaces (PyObject *unused1, PyObject *unused2) | |
432 | { | |
433 | struct program_space *ps; | |
434 | PyObject *list; | |
435 | ||
436 | list = PyList_New (0); | |
437 | if (!list) | |
438 | return NULL; | |
439 | ||
440 | ALL_PSPACES (ps) | |
441 | { | |
442 | PyObject *item = pspace_to_pspace_object (ps); | |
443 | if (!item || PyList_Append (list, item) == -1) | |
444 | { | |
445 | Py_DECREF (list); | |
446 | return NULL; | |
447 | } | |
448 | } | |
449 | ||
450 | return list; | |
451 | } | |
452 | ||
453 | \f | |
454 | ||
89c73ade | 455 | /* The "current" objfile. This is set when gdb detects that a new |
8a1ea21f DE |
456 | objfile has been loaded. It is only set for the duration of a call to |
457 | source_python_script_for_objfile; it is NULL at other times. */ | |
89c73ade TT |
458 | static struct objfile *gdbpy_current_objfile; |
459 | ||
8a1ea21f DE |
460 | /* Set the current objfile to OBJFILE and then read STREAM,FILE as |
461 | Python code. */ | |
89c73ade | 462 | |
8a1ea21f DE |
463 | void |
464 | source_python_script_for_objfile (struct objfile *objfile, | |
465 | FILE *stream, const char *file) | |
89c73ade | 466 | { |
89c73ade TT |
467 | struct cleanup *cleanups; |
468 | ||
d452c4bc | 469 | cleanups = ensure_python_env (get_objfile_arch (objfile), current_language); |
89c73ade TT |
470 | gdbpy_current_objfile = objfile; |
471 | ||
8a1ea21f DE |
472 | /* We don't want to throw an exception here -- but the user |
473 | would like to know that something went wrong. */ | |
474 | if (PyRun_SimpleFile (stream, file)) | |
475 | gdbpy_print_stack (); | |
89c73ade TT |
476 | |
477 | do_cleanups (cleanups); | |
478 | gdbpy_current_objfile = NULL; | |
89c73ade TT |
479 | } |
480 | ||
481 | /* Return the current Objfile, or None if there isn't one. */ | |
8a1ea21f | 482 | |
89c73ade TT |
483 | static PyObject * |
484 | gdbpy_get_current_objfile (PyObject *unused1, PyObject *unused2) | |
485 | { | |
486 | PyObject *result; | |
487 | ||
488 | if (! gdbpy_current_objfile) | |
489 | Py_RETURN_NONE; | |
490 | ||
491 | result = objfile_to_objfile_object (gdbpy_current_objfile); | |
492 | if (result) | |
493 | Py_INCREF (result); | |
494 | return result; | |
495 | } | |
496 | ||
497 | /* Return a sequence holding all the Objfiles. */ | |
fa33c3cd | 498 | |
89c73ade TT |
499 | static PyObject * |
500 | gdbpy_objfiles (PyObject *unused1, PyObject *unused2) | |
501 | { | |
502 | struct objfile *objf; | |
503 | PyObject *list; | |
504 | ||
505 | list = PyList_New (0); | |
506 | if (!list) | |
507 | return NULL; | |
508 | ||
509 | ALL_OBJFILES (objf) | |
510 | { | |
511 | PyObject *item = objfile_to_objfile_object (objf); | |
512 | if (!item || PyList_Append (list, item) == -1) | |
513 | { | |
514 | Py_DECREF (list); | |
515 | return NULL; | |
516 | } | |
517 | } | |
518 | ||
519 | return list; | |
520 | } | |
521 | ||
d57a3c85 TJB |
522 | #else /* HAVE_PYTHON */ |
523 | ||
524 | /* Dummy implementation of the gdb "python" command. */ | |
525 | ||
526 | static void | |
527 | python_command (char *arg, int from_tty) | |
528 | { | |
529 | while (arg && *arg && isspace (*arg)) | |
530 | ++arg; | |
531 | if (arg && *arg) | |
532 | error (_("Python scripting is not supported in this copy of GDB.")); | |
533 | else | |
534 | { | |
535 | struct command_line *l = get_command_line (python_control, ""); | |
536 | struct cleanup *cleanups = make_cleanup_free_command_lines (&l); | |
537 | execute_control_command_untraced (l); | |
538 | do_cleanups (cleanups); | |
539 | } | |
540 | } | |
541 | ||
542 | void | |
543 | eval_python_from_control_command (struct command_line *cmd) | |
544 | { | |
545 | error (_("Python scripting is not supported in this copy of GDB.")); | |
546 | } | |
547 | ||
973817a3 | 548 | void |
3f7b2faa | 549 | source_python_script (FILE *stream, const char *file) |
973817a3 | 550 | { |
973817a3 JB |
551 | throw_error (UNSUPPORTED_ERROR, |
552 | _("Python scripting is not supported in this copy of GDB.")); | |
553 | } | |
554 | ||
d57a3c85 TJB |
555 | #endif /* HAVE_PYTHON */ |
556 | ||
557 | \f | |
558 | ||
559 | /* Lists for 'maint set python' commands. */ | |
560 | ||
8a1ea21f DE |
561 | struct cmd_list_element *set_python_list; |
562 | struct cmd_list_element *show_python_list; | |
d57a3c85 TJB |
563 | |
564 | /* Function for use by 'maint set python' prefix command. */ | |
565 | ||
566 | static void | |
567 | set_python (char *args, int from_tty) | |
568 | { | |
569 | help_list (set_python_list, "maintenance set python ", -1, gdb_stdout); | |
570 | } | |
571 | ||
572 | /* Function for use by 'maint show python' prefix command. */ | |
573 | ||
574 | static void | |
575 | show_python (char *args, int from_tty) | |
576 | { | |
577 | cmd_show_list (show_python_list, from_tty, ""); | |
578 | } | |
579 | ||
580 | /* Initialize the Python code. */ | |
581 | ||
2c0b251b PA |
582 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
583 | extern initialize_file_ftype _initialize_python; | |
584 | ||
d57a3c85 TJB |
585 | void |
586 | _initialize_python (void) | |
587 | { | |
588 | add_com ("python", class_obscure, python_command, | |
589 | #ifdef HAVE_PYTHON | |
590 | _("\ | |
591 | Evaluate a Python command.\n\ | |
592 | \n\ | |
593 | The command can be given as an argument, for instance:\n\ | |
594 | \n\ | |
595 | python print 23\n\ | |
596 | \n\ | |
597 | If no argument is given, the following lines are read and used\n\ | |
598 | as the Python commands. Type a line containing \"end\" to indicate\n\ | |
599 | the end of the command.") | |
600 | #else /* HAVE_PYTHON */ | |
601 | _("\ | |
602 | Evaluate a Python command.\n\ | |
603 | \n\ | |
604 | Python scripting is not supported in this copy of GDB.\n\ | |
605 | This command is only a placeholder.") | |
606 | #endif /* HAVE_PYTHON */ | |
607 | ); | |
608 | ||
609 | add_prefix_cmd ("python", no_class, show_python, | |
610 | _("Prefix command for python maintenance settings."), | |
509238d6 | 611 | &show_python_list, "maintenance show python ", 0, |
d57a3c85 TJB |
612 | &maintenance_show_cmdlist); |
613 | add_prefix_cmd ("python", no_class, set_python, | |
614 | _("Prefix command for python maintenance settings."), | |
509238d6 | 615 | &set_python_list, "maintenance set python ", 0, |
d57a3c85 TJB |
616 | &maintenance_set_cmdlist); |
617 | ||
618 | add_setshow_boolean_cmd ("print-stack", class_maintenance, | |
619 | &gdbpy_should_print_stack, _("\ | |
620 | Enable or disable printing of Python stack dump on error."), _("\ | |
621 | Show whether Python stack will be printed on error."), _("\ | |
622 | Enables or disables printing of Python stack traces."), | |
623 | NULL, NULL, | |
624 | &set_python_list, | |
625 | &show_python_list); | |
626 | ||
627 | #ifdef HAVE_PYTHON | |
628 | Py_Initialize (); | |
ca30a762 | 629 | PyEval_InitThreads (); |
d57a3c85 TJB |
630 | |
631 | gdb_module = Py_InitModule ("gdb", GdbMethods); | |
632 | ||
633 | /* The casts to (char*) are for python 2.4. */ | |
634 | PyModule_AddStringConstant (gdb_module, "VERSION", (char*) version); | |
635 | PyModule_AddStringConstant (gdb_module, "HOST_CONFIG", (char*) host_name); | |
636 | PyModule_AddStringConstant (gdb_module, "TARGET_CONFIG", (char*) target_name); | |
637 | ||
8a1ea21f | 638 | gdbpy_initialize_auto_load (); |
a08702d6 | 639 | gdbpy_initialize_values (); |
f8f6f20b | 640 | gdbpy_initialize_frames (); |
d8906c6f | 641 | gdbpy_initialize_commands (); |
f3e9a817 PM |
642 | gdbpy_initialize_symbols (); |
643 | gdbpy_initialize_symtabs (); | |
644 | gdbpy_initialize_blocks (); | |
bc3b79fd | 645 | gdbpy_initialize_functions (); |
d7b32ed3 | 646 | gdbpy_initialize_parameters (); |
2c74e833 | 647 | gdbpy_initialize_types (); |
fa33c3cd | 648 | gdbpy_initialize_pspace (); |
89c73ade | 649 | gdbpy_initialize_objfile (); |
adc36818 | 650 | gdbpy_initialize_breakpoints (); |
be759fcf | 651 | gdbpy_initialize_lazy_string (); |
a08702d6 | 652 | |
d57a3c85 | 653 | PyRun_SimpleString ("import gdb"); |
a6bac58e | 654 | PyRun_SimpleString ("gdb.pretty_printers = []"); |
d57a3c85 | 655 | |
a6bac58e TT |
656 | gdbpy_to_string_cst = PyString_FromString ("to_string"); |
657 | gdbpy_children_cst = PyString_FromString ("children"); | |
658 | gdbpy_display_hint_cst = PyString_FromString ("display_hint"); | |
d8906c6f TJB |
659 | gdbpy_doc_cst = PyString_FromString ("__doc__"); |
660 | ||
d57a3c85 TJB |
661 | /* Create a couple objects which are used for Python's stdout and |
662 | stderr. */ | |
663 | PyRun_SimpleString ("\ | |
664 | import sys\n\ | |
665 | class GdbOutputFile:\n\ | |
666 | def close(self):\n\ | |
667 | # Do nothing.\n\ | |
668 | return None\n\ | |
669 | \n\ | |
670 | def isatty(self):\n\ | |
671 | return False\n\ | |
672 | \n\ | |
673 | def write(self, s):\n\ | |
674 | gdb.write(s)\n\ | |
675 | \n\ | |
676 | def writelines(self, iterable):\n\ | |
677 | for line in iterable:\n\ | |
678 | self.write(line)\n\ | |
679 | \n\ | |
680 | def flush(self):\n\ | |
681 | gdb.flush()\n\ | |
682 | \n\ | |
683 | sys.stderr = GdbOutputFile()\n\ | |
684 | sys.stdout = GdbOutputFile()\n\ | |
685 | "); | |
ca30a762 TT |
686 | |
687 | /* Release the GIL while gdb runs. */ | |
688 | PyThreadState_Swap (NULL); | |
689 | PyEval_ReleaseLock (); | |
690 | ||
d57a3c85 TJB |
691 | #endif /* HAVE_PYTHON */ |
692 | } | |
12453b93 TJB |
693 | |
694 | \f | |
695 | ||
696 | #if HAVE_PYTHON | |
697 | ||
698 | static PyMethodDef GdbMethods[] = | |
699 | { | |
700 | { "history", gdbpy_history, METH_VARARGS, | |
701 | "Get a value from history" }, | |
702 | { "execute", execute_gdb_command, METH_VARARGS, | |
703 | "Execute a gdb command" }, | |
8f500870 | 704 | { "parameter", gdbpy_parameter, METH_VARARGS, |
12453b93 TJB |
705 | "Return a gdb parameter's value" }, |
706 | ||
adc36818 PM |
707 | { "breakpoints", gdbpy_breakpoints, METH_NOARGS, |
708 | "Return a tuple of all breakpoint objects" }, | |
709 | ||
b6313243 TT |
710 | { "default_visualizer", gdbpy_default_visualizer, METH_VARARGS, |
711 | "Find the default visualizer for a Value." }, | |
712 | ||
fa33c3cd DE |
713 | { "current_progspace", gdbpy_get_current_progspace, METH_NOARGS, |
714 | "Return the current Progspace." }, | |
715 | { "progspaces", gdbpy_progspaces, METH_NOARGS, | |
716 | "Return a sequence of all progspaces." }, | |
717 | ||
89c73ade TT |
718 | { "current_objfile", gdbpy_get_current_objfile, METH_NOARGS, |
719 | "Return the current Objfile being loaded, or None." }, | |
720 | { "objfiles", gdbpy_objfiles, METH_NOARGS, | |
721 | "Return a sequence of all loaded objfiles." }, | |
722 | ||
f8f6f20b TJB |
723 | { "selected_frame", gdbpy_selected_frame, METH_NOARGS, |
724 | "selected_frame () -> gdb.Frame.\n\ | |
725 | Return the selected frame object." }, | |
726 | { "frame_stop_reason_string", gdbpy_frame_stop_reason_string, METH_VARARGS, | |
727 | "stop_reason_string (Integer) -> String.\n\ | |
728 | Return a string explaining unwind stop reason." }, | |
729 | ||
2c74e833 TT |
730 | { "lookup_type", (PyCFunction) gdbpy_lookup_type, |
731 | METH_VARARGS | METH_KEYWORDS, | |
732 | "lookup_type (name [, block]) -> type\n\ | |
733 | Return a Type corresponding to the given name." }, | |
f3e9a817 PM |
734 | { "lookup_symbol", (PyCFunction) gdbpy_lookup_symbol, |
735 | METH_VARARGS | METH_KEYWORDS, | |
736 | "lookup_symbol (name [, block] [, domain]) -> (symbol, is_field_of_this)\n\ | |
737 | Return a tuple with the symbol corresponding to the given name (or None) and\n\ | |
738 | a boolean indicating if name is a field of the current implied argument\n\ | |
739 | `this' (when the current language is object-oriented)." }, | |
740 | { "block_for_pc", gdbpy_block_for_pc, METH_VARARGS, | |
741 | "Return the block containing the given pc value, or None." }, | |
57a1d736 TT |
742 | { "parse_and_eval", gdbpy_parse_and_eval, METH_VARARGS, |
743 | "parse_and_eval (String) -> Value.\n\ | |
744 | Parse String as an expression, evaluate it, and return the result as a Value." | |
745 | }, | |
746 | ||
f870a310 TT |
747 | { "target_charset", gdbpy_target_charset, METH_NOARGS, |
748 | "target_charset () -> string.\n\ | |
749 | Return the name of the current target charset." }, | |
750 | { "target_wide_charset", gdbpy_target_wide_charset, METH_NOARGS, | |
751 | "target_wide_charset () -> string.\n\ | |
752 | Return the name of the current target wide charset." }, | |
753 | ||
12453b93 TJB |
754 | { "write", gdbpy_write, METH_VARARGS, |
755 | "Write a string using gdb's filtered stream." }, | |
756 | { "flush", gdbpy_flush, METH_NOARGS, | |
757 | "Flush gdb's filtered stdout stream." }, | |
758 | ||
759 | {NULL, NULL, 0, NULL} | |
760 | }; | |
761 | ||
762 | #endif /* HAVE_PYTHON */ |