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fa33c3cd DE |
1 | /* Python interface to program spaces. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2010-2014 Free Software Foundation, Inc. |
fa33c3cd DE |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "python-internal.h" | |
22 | #include "charset.h" | |
23 | #include "progspace.h" | |
24 | #include "objfiles.h" | |
25 | #include "language.h" | |
b3422a0d | 26 | #include "arch-utils.h" |
fa33c3cd DE |
27 | |
28 | typedef struct | |
29 | { | |
30 | PyObject_HEAD | |
31 | ||
32 | /* The corresponding pspace. */ | |
33 | struct program_space *pspace; | |
34 | ||
35 | /* The pretty-printer list of functions. */ | |
36 | PyObject *printers; | |
18a9fc12 | 37 | |
1e611234 PM |
38 | /* The frame filter list of functions. */ |
39 | PyObject *frame_filters; | |
18a9fc12 TT |
40 | /* The type-printer list. */ |
41 | PyObject *type_printers; | |
fa33c3cd DE |
42 | } pspace_object; |
43 | ||
62eec1a5 TT |
44 | static PyTypeObject pspace_object_type |
45 | CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("pspace_object"); | |
fa33c3cd DE |
46 | |
47 | static const struct program_space_data *pspy_pspace_data_key; | |
48 | ||
49 | \f | |
50 | ||
51 | /* An Objfile method which returns the objfile's file name, or None. */ | |
52 | ||
53 | static PyObject * | |
54 | pspy_get_filename (PyObject *self, void *closure) | |
55 | { | |
56 | pspace_object *obj = (pspace_object *) self; | |
d59b6f6c | 57 | |
fa33c3cd DE |
58 | if (obj->pspace) |
59 | { | |
60 | struct objfile *objfile = obj->pspace->symfile_object_file; | |
d59b6f6c | 61 | |
d31d2fc3 | 62 | if (objfile) |
4262abfb JK |
63 | return PyString_Decode (objfile_name (objfile), |
64 | strlen (objfile_name (objfile)), | |
fa33c3cd DE |
65 | host_charset (), NULL); |
66 | } | |
67 | Py_RETURN_NONE; | |
68 | } | |
69 | ||
70 | static void | |
71 | pspy_dealloc (PyObject *self) | |
72 | { | |
73 | pspace_object *ps_self = (pspace_object *) self; | |
d59b6f6c | 74 | |
fa33c3cd | 75 | Py_XDECREF (ps_self->printers); |
1e611234 | 76 | Py_XDECREF (ps_self->frame_filters); |
18a9fc12 | 77 | Py_XDECREF (ps_self->type_printers); |
9a27f2c6 | 78 | Py_TYPE (self)->tp_free (self); |
fa33c3cd DE |
79 | } |
80 | ||
81 | static PyObject * | |
82 | pspy_new (PyTypeObject *type, PyObject *args, PyObject *keywords) | |
83 | { | |
84 | pspace_object *self = (pspace_object *) type->tp_alloc (type, 0); | |
d59b6f6c | 85 | |
fa33c3cd DE |
86 | if (self) |
87 | { | |
88 | self->pspace = NULL; | |
89 | ||
90 | self->printers = PyList_New (0); | |
91 | if (!self->printers) | |
92 | { | |
93 | Py_DECREF (self); | |
94 | return NULL; | |
95 | } | |
18a9fc12 | 96 | |
1e611234 PM |
97 | self->frame_filters = PyDict_New (); |
98 | if (!self->frame_filters) | |
99 | { | |
100 | Py_DECREF (self); | |
101 | return NULL; | |
102 | } | |
103 | ||
18a9fc12 TT |
104 | self->type_printers = PyList_New (0); |
105 | if (!self->type_printers) | |
106 | { | |
107 | Py_DECREF (self); | |
108 | return NULL; | |
109 | } | |
fa33c3cd DE |
110 | } |
111 | return (PyObject *) self; | |
112 | } | |
113 | ||
114 | PyObject * | |
115 | pspy_get_printers (PyObject *o, void *ignore) | |
116 | { | |
117 | pspace_object *self = (pspace_object *) o; | |
d59b6f6c | 118 | |
fa33c3cd DE |
119 | Py_INCREF (self->printers); |
120 | return self->printers; | |
121 | } | |
122 | ||
123 | static int | |
124 | pspy_set_printers (PyObject *o, PyObject *value, void *ignore) | |
125 | { | |
126 | PyObject *tmp; | |
127 | pspace_object *self = (pspace_object *) o; | |
d59b6f6c | 128 | |
fa33c3cd DE |
129 | if (! value) |
130 | { | |
131 | PyErr_SetString (PyExc_TypeError, | |
132 | "cannot delete the pretty_printers attribute"); | |
133 | return -1; | |
134 | } | |
135 | ||
136 | if (! PyList_Check (value)) | |
137 | { | |
138 | PyErr_SetString (PyExc_TypeError, | |
139 | "the pretty_printers attribute must be a list"); | |
140 | return -1; | |
141 | } | |
142 | ||
143 | /* Take care in case the LHS and RHS are related somehow. */ | |
144 | tmp = self->printers; | |
145 | Py_INCREF (value); | |
146 | self->printers = value; | |
147 | Py_XDECREF (tmp); | |
148 | ||
149 | return 0; | |
150 | } | |
151 | ||
1e611234 PM |
152 | /* Return the Python dictionary attribute containing frame filters for |
153 | this program space. */ | |
154 | PyObject * | |
155 | pspy_get_frame_filters (PyObject *o, void *ignore) | |
156 | { | |
157 | pspace_object *self = (pspace_object *) o; | |
158 | ||
159 | Py_INCREF (self->frame_filters); | |
160 | return self->frame_filters; | |
161 | } | |
162 | ||
163 | /* Set this object file's frame filters dictionary to FILTERS. */ | |
164 | static int | |
165 | pspy_set_frame_filters (PyObject *o, PyObject *frame, void *ignore) | |
166 | { | |
167 | PyObject *tmp; | |
168 | pspace_object *self = (pspace_object *) o; | |
169 | ||
170 | if (! frame) | |
171 | { | |
172 | PyErr_SetString (PyExc_TypeError, | |
173 | "cannot delete the frame filter attribute"); | |
174 | return -1; | |
175 | } | |
176 | ||
177 | if (! PyDict_Check (frame)) | |
178 | { | |
179 | PyErr_SetString (PyExc_TypeError, | |
180 | "the frame filter attribute must be a dictionary"); | |
181 | return -1; | |
182 | } | |
183 | ||
184 | /* Take care in case the LHS and RHS are related somehow. */ | |
185 | tmp = self->frame_filters; | |
186 | Py_INCREF (frame); | |
187 | self->frame_filters = frame; | |
188 | Py_XDECREF (tmp); | |
189 | ||
190 | return 0; | |
191 | } | |
192 | ||
18a9fc12 TT |
193 | /* Get the 'type_printers' attribute. */ |
194 | ||
195 | static PyObject * | |
196 | pspy_get_type_printers (PyObject *o, void *ignore) | |
197 | { | |
198 | pspace_object *self = (pspace_object *) o; | |
199 | ||
200 | Py_INCREF (self->type_printers); | |
201 | return self->type_printers; | |
202 | } | |
203 | ||
204 | /* Set the 'type_printers' attribute. */ | |
205 | ||
206 | static int | |
207 | pspy_set_type_printers (PyObject *o, PyObject *value, void *ignore) | |
208 | { | |
209 | PyObject *tmp; | |
210 | pspace_object *self = (pspace_object *) o; | |
211 | ||
212 | if (! value) | |
213 | { | |
214 | PyErr_SetString (PyExc_TypeError, | |
215 | "cannot delete the type_printers attribute"); | |
216 | return -1; | |
217 | } | |
218 | ||
219 | if (! PyList_Check (value)) | |
220 | { | |
221 | PyErr_SetString (PyExc_TypeError, | |
222 | "the type_printers attribute must be a list"); | |
223 | return -1; | |
224 | } | |
225 | ||
226 | /* Take care in case the LHS and RHS are related somehow. */ | |
227 | tmp = self->type_printers; | |
228 | Py_INCREF (value); | |
229 | self->type_printers = value; | |
230 | Py_XDECREF (tmp); | |
231 | ||
232 | return 0; | |
233 | } | |
234 | ||
fa33c3cd DE |
235 | \f |
236 | ||
237 | /* Clear the PSPACE pointer in a Pspace object and remove the reference. */ | |
238 | ||
239 | static void | |
240 | py_free_pspace (struct program_space *pspace, void *datum) | |
241 | { | |
242 | struct cleanup *cleanup; | |
243 | pspace_object *object = datum; | |
b3422a0d | 244 | struct gdbarch *arch = get_current_arch (); |
fa33c3cd DE |
245 | |
246 | cleanup = ensure_python_env (arch, current_language); | |
247 | object->pspace = NULL; | |
248 | Py_DECREF ((PyObject *) object); | |
249 | do_cleanups (cleanup); | |
250 | } | |
251 | ||
252 | /* Return a borrowed reference to the Python object of type Pspace | |
253 | representing PSPACE. If the object has already been created, | |
254 | return it. Otherwise, create it. Return NULL and set the Python | |
255 | error on failure. */ | |
256 | ||
257 | PyObject * | |
258 | pspace_to_pspace_object (struct program_space *pspace) | |
259 | { | |
260 | pspace_object *object; | |
261 | ||
262 | object = program_space_data (pspace, pspy_pspace_data_key); | |
263 | if (!object) | |
264 | { | |
265 | object = PyObject_New (pspace_object, &pspace_object_type); | |
266 | if (object) | |
267 | { | |
fa33c3cd DE |
268 | object->pspace = pspace; |
269 | ||
270 | object->printers = PyList_New (0); | |
271 | if (!object->printers) | |
272 | { | |
273 | Py_DECREF (object); | |
274 | return NULL; | |
275 | } | |
276 | ||
1e611234 PM |
277 | object->frame_filters = PyDict_New (); |
278 | if (!object->frame_filters) | |
279 | { | |
280 | Py_DECREF (object); | |
281 | return NULL; | |
282 | } | |
283 | ||
18a9fc12 TT |
284 | object->type_printers = PyList_New (0); |
285 | if (!object->type_printers) | |
286 | { | |
287 | Py_DECREF (object); | |
288 | return NULL; | |
289 | } | |
290 | ||
fa33c3cd DE |
291 | set_program_space_data (pspace, pspy_pspace_data_key, object); |
292 | } | |
293 | } | |
294 | ||
295 | return (PyObject *) object; | |
296 | } | |
297 | ||
999633ed | 298 | int |
fa33c3cd DE |
299 | gdbpy_initialize_pspace (void) |
300 | { | |
301 | pspy_pspace_data_key | |
8e260fc0 | 302 | = register_program_space_data_with_cleanup (NULL, py_free_pspace); |
fa33c3cd DE |
303 | |
304 | if (PyType_Ready (&pspace_object_type) < 0) | |
999633ed | 305 | return -1; |
fa33c3cd | 306 | |
aa36459a TT |
307 | return gdb_pymodule_addobject (gdb_module, "Progspace", |
308 | (PyObject *) &pspace_object_type); | |
fa33c3cd DE |
309 | } |
310 | ||
311 | \f | |
312 | ||
313 | static PyGetSetDef pspace_getset[] = | |
314 | { | |
315 | { "filename", pspy_get_filename, NULL, | |
316 | "The progspace's main filename, or None.", NULL }, | |
317 | { "pretty_printers", pspy_get_printers, pspy_set_printers, | |
318 | "Pretty printers.", NULL }, | |
1e611234 PM |
319 | { "frame_filters", pspy_get_frame_filters, pspy_set_frame_filters, |
320 | "Frame filters.", NULL }, | |
18a9fc12 TT |
321 | { "type_printers", pspy_get_type_printers, pspy_set_type_printers, |
322 | "Type printers.", NULL }, | |
fa33c3cd DE |
323 | { NULL } |
324 | }; | |
325 | ||
326 | static PyTypeObject pspace_object_type = | |
327 | { | |
9a27f2c6 | 328 | PyVarObject_HEAD_INIT (NULL, 0) |
fa33c3cd DE |
329 | "gdb.Progspace", /*tp_name*/ |
330 | sizeof (pspace_object), /*tp_basicsize*/ | |
331 | 0, /*tp_itemsize*/ | |
332 | pspy_dealloc, /*tp_dealloc*/ | |
333 | 0, /*tp_print*/ | |
334 | 0, /*tp_getattr*/ | |
335 | 0, /*tp_setattr*/ | |
336 | 0, /*tp_compare*/ | |
337 | 0, /*tp_repr*/ | |
338 | 0, /*tp_as_number*/ | |
339 | 0, /*tp_as_sequence*/ | |
340 | 0, /*tp_as_mapping*/ | |
341 | 0, /*tp_hash */ | |
342 | 0, /*tp_call*/ | |
343 | 0, /*tp_str*/ | |
344 | 0, /*tp_getattro*/ | |
345 | 0, /*tp_setattro*/ | |
346 | 0, /*tp_as_buffer*/ | |
347 | Py_TPFLAGS_DEFAULT, /*tp_flags*/ | |
348 | "GDB progspace object", /* tp_doc */ | |
349 | 0, /* tp_traverse */ | |
350 | 0, /* tp_clear */ | |
351 | 0, /* tp_richcompare */ | |
352 | 0, /* tp_weaklistoffset */ | |
353 | 0, /* tp_iter */ | |
354 | 0, /* tp_iternext */ | |
355 | 0, /* tp_methods */ | |
356 | 0, /* tp_members */ | |
357 | pspace_getset, /* tp_getset */ | |
358 | 0, /* tp_base */ | |
359 | 0, /* tp_dict */ | |
360 | 0, /* tp_descr_get */ | |
361 | 0, /* tp_descr_set */ | |
362 | 0, /* tp_dictoffset */ | |
363 | 0, /* tp_init */ | |
364 | 0, /* tp_alloc */ | |
365 | pspy_new, /* tp_new */ | |
366 | }; |