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595939de PM |
1 | /* Python interface to inferiors. |
2 | ||
7b6bb8da | 3 | Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc. |
595939de PM |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "exceptions.h" | |
22 | #include "gdbcore.h" | |
23 | #include "gdbthread.h" | |
24 | #include "inferior.h" | |
25 | #include "observer.h" | |
26 | #include "python-internal.h" | |
27 | #include "arch-utils.h" | |
28 | #include "language.h" | |
29 | ||
30 | struct threadlist_entry { | |
31 | thread_object *thread_obj; | |
32 | struct threadlist_entry *next; | |
33 | }; | |
34 | ||
35 | typedef struct | |
36 | { | |
37 | PyObject_HEAD | |
38 | ||
39 | /* The inferior we represent. */ | |
40 | struct inferior *inferior; | |
41 | ||
42 | /* thread_object instances under this inferior. This list owns a | |
43 | reference to each object it contains. */ | |
44 | struct threadlist_entry *threads; | |
45 | ||
46 | /* Number of threads in the list. */ | |
47 | int nthreads; | |
48 | } inferior_object; | |
49 | ||
50 | static PyTypeObject inferior_object_type; | |
51 | ||
52 | static const struct inferior_data *infpy_inf_data_key; | |
53 | ||
54 | typedef struct { | |
55 | PyObject_HEAD | |
56 | void *buffer; | |
57 | ||
58 | /* These are kept just for mbpy_str. */ | |
59 | CORE_ADDR addr; | |
60 | CORE_ADDR length; | |
61 | } membuf_object; | |
62 | ||
63 | static PyTypeObject membuf_object_type; | |
64 | ||
65 | /* Require that INFERIOR be a valid inferior ID. */ | |
66 | #define INFPY_REQUIRE_VALID(Inferior) \ | |
67 | do { \ | |
68 | if (!Inferior->inferior) \ | |
69 | { \ | |
70 | PyErr_SetString (PyExc_RuntimeError, \ | |
71 | _("Inferior no longer exists.")); \ | |
72 | return NULL; \ | |
73 | } \ | |
74 | } while (0) | |
75 | ||
76 | /* Return a borrowed reference to the Python object of type Inferior | |
77 | representing INFERIOR. If the object has already been created, | |
78 | return it, otherwise, create it. Return NULL on failure. */ | |
79 | PyObject * | |
80 | inferior_to_inferior_object (struct inferior *inferior) | |
81 | { | |
82 | inferior_object *inf_obj; | |
83 | ||
84 | inf_obj = inferior_data (inferior, infpy_inf_data_key); | |
85 | if (!inf_obj) | |
86 | { | |
87 | struct cleanup *cleanup; | |
88 | cleanup = ensure_python_env (python_gdbarch, python_language); | |
89 | ||
90 | inf_obj = PyObject_New (inferior_object, &inferior_object_type); | |
91 | if (!inf_obj) | |
92 | { | |
93 | do_cleanups (cleanup); | |
94 | return NULL; | |
95 | } | |
96 | ||
97 | inf_obj->inferior = inferior; | |
98 | inf_obj->threads = NULL; | |
99 | inf_obj->nthreads = 0; | |
100 | ||
101 | set_inferior_data (inferior, infpy_inf_data_key, inf_obj); | |
102 | ||
103 | do_cleanups (cleanup); | |
104 | } | |
105 | ||
106 | return (PyObject *) inf_obj; | |
107 | } | |
108 | ||
109 | /* Finds the Python Inferior object for the given PID. Returns a | |
110 | borrowed reference, or NULL if PID does not match any inferior | |
111 | obect. | |
112 | */ | |
113 | PyObject * | |
114 | find_inferior_object (int pid) | |
115 | { | |
116 | struct inflist_entry *p; | |
117 | struct inferior *inf = find_inferior_pid (pid); | |
118 | ||
119 | if (inf) | |
120 | return inferior_to_inferior_object (inf); | |
121 | ||
122 | return NULL; | |
123 | } | |
124 | ||
125 | thread_object * | |
126 | find_thread_object (ptid_t ptid) | |
127 | { | |
128 | int pid; | |
129 | struct threadlist_entry *thread; | |
130 | PyObject *inf_obj; | |
131 | ||
132 | pid = PIDGET (ptid); | |
ea976c60 PM |
133 | if (pid == 0) |
134 | return NULL; | |
135 | ||
595939de PM |
136 | inf_obj = find_inferior_object (pid); |
137 | ||
138 | if (inf_obj) | |
139 | for (thread = ((inferior_object *)inf_obj)->threads; thread; | |
140 | thread = thread->next) | |
141 | if (ptid_equal (thread->thread_obj->thread->ptid, ptid)) | |
142 | return thread->thread_obj; | |
143 | ||
144 | return NULL; | |
145 | } | |
146 | ||
147 | static void | |
148 | add_thread_object (struct thread_info *tp) | |
149 | { | |
150 | struct cleanup *cleanup; | |
151 | thread_object *thread_obj; | |
152 | inferior_object *inf_obj; | |
153 | struct threadlist_entry *entry; | |
154 | ||
155 | cleanup = ensure_python_env (python_gdbarch, python_language); | |
156 | ||
157 | thread_obj = create_thread_object (tp); | |
158 | if (!thread_obj) | |
159 | { | |
160 | gdbpy_print_stack (); | |
161 | do_cleanups (cleanup); | |
162 | return; | |
163 | } | |
164 | ||
165 | inf_obj = (inferior_object *) thread_obj->inf_obj; | |
166 | ||
167 | entry = xmalloc (sizeof (struct threadlist_entry)); | |
168 | entry->thread_obj = thread_obj; | |
169 | entry->next = inf_obj->threads; | |
170 | ||
171 | inf_obj->threads = entry; | |
172 | inf_obj->nthreads++; | |
173 | ||
174 | do_cleanups (cleanup); | |
175 | } | |
176 | ||
177 | static void | |
178 | delete_thread_object (struct thread_info *tp, int ignore) | |
179 | { | |
180 | struct cleanup *cleanup; | |
181 | inferior_object *inf_obj; | |
182 | thread_object *thread_obj; | |
183 | struct threadlist_entry **entry, *tmp; | |
184 | ||
185 | inf_obj = (inferior_object *) find_inferior_object (PIDGET(tp->ptid)); | |
186 | if (!inf_obj) | |
187 | return; | |
188 | ||
189 | /* Find thread entry in its inferior's thread_list. */ | |
190 | for (entry = &inf_obj->threads; *entry != NULL; entry = | |
191 | &(*entry)->next) | |
192 | if ((*entry)->thread_obj->thread == tp) | |
193 | break; | |
194 | ||
195 | if (!*entry) | |
196 | return; | |
197 | ||
198 | cleanup = ensure_python_env (python_gdbarch, python_language); | |
199 | ||
200 | tmp = *entry; | |
201 | tmp->thread_obj->thread = NULL; | |
202 | ||
203 | *entry = (*entry)->next; | |
204 | inf_obj->nthreads--; | |
205 | ||
206 | Py_DECREF (tmp->thread_obj); | |
207 | xfree (tmp); | |
208 | ||
209 | do_cleanups (cleanup); | |
210 | } | |
211 | ||
212 | static PyObject * | |
213 | infpy_threads (PyObject *self, PyObject *args) | |
214 | { | |
215 | int i; | |
216 | struct threadlist_entry *entry; | |
217 | inferior_object *inf_obj = (inferior_object *) self; | |
218 | PyObject *tuple; | |
219 | ||
220 | INFPY_REQUIRE_VALID (inf_obj); | |
221 | ||
222 | tuple = PyTuple_New (inf_obj->nthreads); | |
223 | if (!tuple) | |
224 | return NULL; | |
225 | ||
226 | for (i = 0, entry = inf_obj->threads; i < inf_obj->nthreads; | |
227 | i++, entry = entry->next) | |
228 | { | |
229 | Py_INCREF (entry->thread_obj); | |
230 | PyTuple_SET_ITEM (tuple, i, (PyObject *) entry->thread_obj); | |
231 | } | |
232 | ||
233 | return tuple; | |
234 | } | |
235 | ||
236 | static PyObject * | |
237 | infpy_get_num (PyObject *self, void *closure) | |
238 | { | |
239 | inferior_object *inf = (inferior_object *) self; | |
240 | ||
241 | INFPY_REQUIRE_VALID (inf); | |
242 | ||
243 | return PyLong_FromLong (inf->inferior->num); | |
244 | } | |
245 | ||
246 | static PyObject * | |
247 | infpy_get_pid (PyObject *self, void *closure) | |
248 | { | |
249 | inferior_object *inf = (inferior_object *) self; | |
250 | ||
251 | INFPY_REQUIRE_VALID (inf); | |
252 | ||
253 | return PyLong_FromLong (inf->inferior->pid); | |
254 | } | |
255 | ||
256 | static PyObject * | |
257 | infpy_get_was_attached (PyObject *self, void *closure) | |
258 | { | |
259 | inferior_object *inf = (inferior_object *) self; | |
260 | ||
261 | INFPY_REQUIRE_VALID (inf); | |
262 | if (inf->inferior->attach_flag) | |
263 | Py_RETURN_TRUE; | |
264 | Py_RETURN_FALSE; | |
265 | } | |
266 | ||
267 | static int | |
268 | build_inferior_list (struct inferior *inf, void *arg) | |
269 | { | |
270 | PyObject *list = arg; | |
271 | PyObject *inferior = inferior_to_inferior_object (inf); | |
272 | ||
273 | PyList_Append (list, inferior); | |
274 | return 0; | |
275 | } | |
276 | ||
277 | /* Implementation of gdb.inferiors () -> (gdb.Inferior, ...). | |
278 | Returns a tuple of all inferiors. */ | |
279 | PyObject * | |
280 | gdbpy_inferiors (PyObject *unused, PyObject *unused2) | |
281 | { | |
282 | int i = 0; | |
283 | PyObject *list, *inferior; | |
284 | struct inferior *inf; | |
285 | ||
286 | list = PyList_New (0); | |
287 | if (!list) | |
288 | return NULL; | |
289 | ||
290 | iterate_over_inferiors (build_inferior_list, list); | |
291 | ||
292 | return PyList_AsTuple (list); | |
293 | } | |
294 | ||
295 | /* Membuf and memory manipulation. */ | |
296 | ||
297 | /* Implementation of gdb.read_memory (address, length). | |
298 | Returns a Python buffer object with LENGTH bytes of the inferior's | |
8dc78533 JK |
299 | memory at ADDRESS. Both arguments are integers. Returns NULL on error, |
300 | with a python exception set. */ | |
595939de PM |
301 | static PyObject * |
302 | infpy_read_memory (PyObject *self, PyObject *args, PyObject *kw) | |
303 | { | |
304 | int error = 0; | |
305 | CORE_ADDR addr, length; | |
306 | void *buffer = NULL; | |
307 | membuf_object *membuf_obj; | |
308 | PyObject *addr_obj, *length_obj; | |
309 | struct cleanup *cleanups; | |
310 | volatile struct gdb_exception except; | |
311 | static char *keywords[] = { "address", "length", NULL }; | |
312 | ||
313 | if (! PyArg_ParseTupleAndKeywords (args, kw, "OO", keywords, | |
314 | &addr_obj, &length_obj)) | |
315 | return NULL; | |
316 | ||
317 | cleanups = make_cleanup (null_cleanup, NULL); | |
318 | ||
319 | TRY_CATCH (except, RETURN_MASK_ALL) | |
320 | { | |
321 | if (!get_addr_from_python (addr_obj, &addr) | |
322 | || !get_addr_from_python (length_obj, &length)) | |
323 | { | |
324 | error = 1; | |
325 | break; | |
326 | } | |
327 | ||
328 | buffer = xmalloc (length); | |
329 | make_cleanup (xfree, buffer); | |
330 | ||
331 | read_memory (addr, buffer, length); | |
332 | } | |
333 | if (except.reason < 0) | |
334 | { | |
335 | do_cleanups (cleanups); | |
336 | GDB_PY_HANDLE_EXCEPTION (except); | |
337 | } | |
338 | ||
339 | if (error) | |
340 | { | |
341 | do_cleanups (cleanups); | |
342 | return NULL; | |
343 | } | |
344 | ||
345 | membuf_obj = PyObject_New (membuf_object, &membuf_object_type); | |
346 | if (membuf_obj == NULL) | |
347 | { | |
348 | PyErr_SetString (PyExc_MemoryError, | |
349 | _("Could not allocate memory buffer object.")); | |
350 | do_cleanups (cleanups); | |
351 | return NULL; | |
352 | } | |
353 | ||
354 | discard_cleanups (cleanups); | |
355 | ||
356 | membuf_obj->buffer = buffer; | |
357 | membuf_obj->addr = addr; | |
358 | membuf_obj->length = length; | |
359 | ||
360 | return PyBuffer_FromReadWriteObject ((PyObject *) membuf_obj, 0, | |
361 | Py_END_OF_BUFFER); | |
362 | } | |
363 | ||
364 | /* Implementation of gdb.write_memory (address, buffer [, length]). | |
365 | Writes the contents of BUFFER (a Python object supporting the read | |
366 | buffer protocol) at ADDRESS in the inferior's memory. Write LENGTH | |
367 | bytes from BUFFER, or its entire contents if the argument is not | |
8dc78533 JK |
368 | provided. The function returns nothing. Returns NULL on error, with |
369 | a python exception set. */ | |
595939de PM |
370 | static PyObject * |
371 | infpy_write_memory (PyObject *self, PyObject *args, PyObject *kw) | |
372 | { | |
373 | int buf_len, error = 0; | |
374 | const char *buffer; | |
375 | CORE_ADDR addr, length; | |
376 | PyObject *addr_obj, *length_obj = NULL; | |
377 | volatile struct gdb_exception except; | |
378 | static char *keywords[] = { "address", "buffer", "length", NULL }; | |
379 | ||
380 | ||
381 | if (! PyArg_ParseTupleAndKeywords (args, kw, "Os#|O", keywords, | |
382 | &addr_obj, &buffer, &buf_len, | |
383 | &length_obj)) | |
384 | return NULL; | |
385 | ||
386 | TRY_CATCH (except, RETURN_MASK_ALL) | |
387 | { | |
388 | if (!get_addr_from_python (addr_obj, &addr)) | |
389 | { | |
390 | error = 1; | |
391 | break; | |
392 | } | |
393 | ||
394 | if (!length_obj) | |
395 | length = buf_len; | |
396 | else if (!get_addr_from_python (length_obj, &length)) | |
397 | { | |
398 | error = 1; | |
399 | break; | |
400 | } | |
401 | write_memory (addr, buffer, length); | |
402 | } | |
403 | GDB_PY_HANDLE_EXCEPTION (except); | |
404 | ||
405 | if (error) | |
406 | return NULL; | |
407 | ||
408 | Py_RETURN_NONE; | |
409 | } | |
410 | ||
411 | /* Destructor of Membuf objects. */ | |
412 | static void | |
413 | mbpy_dealloc (PyObject *self) | |
414 | { | |
415 | xfree (((membuf_object *) self)->buffer); | |
416 | self->ob_type->tp_free (self); | |
417 | } | |
418 | ||
419 | /* Return a description of the Membuf object. */ | |
420 | static PyObject * | |
421 | mbpy_str (PyObject *self) | |
422 | { | |
423 | membuf_object *membuf_obj = (membuf_object *) self; | |
424 | ||
425 | return PyString_FromFormat (_("Memory buffer for address %s, \ | |
426 | which is %s bytes long."), | |
427 | paddress (python_gdbarch, membuf_obj->addr), | |
428 | pulongest (membuf_obj->length)); | |
429 | } | |
430 | ||
431 | static Py_ssize_t | |
432 | get_read_buffer (PyObject *self, Py_ssize_t segment, void **ptrptr) | |
433 | { | |
434 | membuf_object *membuf_obj = (membuf_object *) self; | |
435 | ||
436 | if (segment) | |
437 | { | |
438 | PyErr_SetString (PyExc_SystemError, | |
439 | _("The memory buffer supports only one segment.")); | |
440 | return -1; | |
441 | } | |
442 | ||
443 | *ptrptr = membuf_obj->buffer; | |
444 | ||
445 | return membuf_obj->length; | |
446 | } | |
447 | ||
448 | static Py_ssize_t | |
449 | get_write_buffer (PyObject *self, Py_ssize_t segment, void **ptrptr) | |
450 | { | |
451 | return get_read_buffer (self, segment, ptrptr); | |
452 | } | |
453 | ||
454 | static Py_ssize_t | |
455 | get_seg_count (PyObject *self, Py_ssize_t *lenp) | |
456 | { | |
457 | if (lenp) | |
458 | *lenp = ((membuf_object *) self)->length; | |
459 | ||
460 | return 1; | |
461 | } | |
462 | ||
463 | static Py_ssize_t | |
464 | get_char_buffer (PyObject *self, Py_ssize_t segment, char **ptrptr) | |
465 | { | |
466 | void *ptr = NULL; | |
467 | Py_ssize_t ret; | |
468 | ||
469 | ret = get_read_buffer (self, segment, &ptr); | |
470 | *ptrptr = (char *) ptr; | |
471 | ||
472 | return ret; | |
473 | } | |
474 | ||
475 | /* Implementation of | |
476 | gdb.search_memory (address, length, pattern). ADDRESS is the | |
477 | address to start the search. LENGTH specifies the scope of the | |
478 | search from ADDRESS. PATTERN is the pattern to search for (and | |
479 | must be a Python object supporting the buffer protocol). | |
480 | Returns a Python Long object holding the address where the pattern | |
8dc78533 JK |
481 | was located, or if the pattern was not found, returns None. Returns NULL |
482 | on error, with a python exception set. */ | |
595939de PM |
483 | static PyObject * |
484 | infpy_search_memory (PyObject *self, PyObject *args, PyObject *kw) | |
485 | { | |
486 | CORE_ADDR start_addr, length; | |
487 | static char *keywords[] = { "address", "length", "pattern", NULL }; | |
488 | PyObject *pattern, *start_addr_obj, *length_obj; | |
489 | volatile struct gdb_exception except; | |
490 | Py_ssize_t pattern_size; | |
491 | const void *buffer; | |
492 | CORE_ADDR found_addr; | |
493 | int found = 0; | |
494 | ||
495 | if (! PyArg_ParseTupleAndKeywords (args, kw, "OOO", keywords, | |
496 | &start_addr_obj, &length_obj, | |
497 | &pattern)) | |
498 | return NULL; | |
499 | ||
500 | if (get_addr_from_python (start_addr_obj, &start_addr) | |
501 | && get_addr_from_python (length_obj, &length)) | |
502 | { | |
503 | if (!length) | |
504 | { | |
505 | PyErr_SetString (PyExc_ValueError, | |
506 | _("Search range is empty.")); | |
507 | return NULL; | |
508 | } | |
509 | /* Watch for overflows. */ | |
510 | else if (length > CORE_ADDR_MAX | |
511 | || (start_addr + length - 1) < start_addr) | |
512 | { | |
513 | PyErr_SetString (PyExc_ValueError, | |
514 | _("The search range is too large.")); | |
515 | ||
516 | return NULL; | |
517 | } | |
518 | } | |
519 | else | |
8dc78533 | 520 | return NULL; |
595939de PM |
521 | |
522 | if (!PyObject_CheckReadBuffer (pattern)) | |
523 | { | |
524 | PyErr_SetString (PyExc_RuntimeError, | |
525 | _("The pattern is not a Python buffer.")); | |
526 | ||
527 | return NULL; | |
528 | } | |
529 | ||
530 | if (PyObject_AsReadBuffer (pattern, &buffer, &pattern_size) == -1) | |
531 | return NULL; | |
532 | ||
533 | TRY_CATCH (except, RETURN_MASK_ALL) | |
534 | { | |
535 | found = target_search_memory (start_addr, length, | |
536 | buffer, pattern_size, | |
537 | &found_addr); | |
538 | } | |
539 | GDB_PY_HANDLE_EXCEPTION (except); | |
540 | ||
541 | if (found) | |
542 | return PyLong_FromLong (found_addr); | |
543 | else | |
544 | Py_RETURN_NONE; | |
545 | } | |
546 | ||
547 | ||
548 | /* Clear the INFERIOR pointer in an Inferior object and clear the | |
549 | thread list. */ | |
550 | static void | |
551 | py_free_inferior (struct inferior *inf, void *datum) | |
552 | { | |
553 | ||
554 | struct cleanup *cleanup; | |
555 | inferior_object *inf_obj = datum; | |
556 | struct threadlist_entry *th_entry, *th_tmp; | |
557 | ||
558 | cleanup = ensure_python_env (python_gdbarch, python_language); | |
559 | ||
560 | inf_obj->inferior = NULL; | |
561 | ||
562 | /* Deallocate threads list. */ | |
563 | for (th_entry = inf_obj->threads; th_entry != NULL;) | |
564 | { | |
565 | Py_DECREF (th_entry->thread_obj); | |
566 | ||
567 | th_tmp = th_entry; | |
568 | th_entry = th_entry->next; | |
569 | xfree (th_tmp); | |
570 | } | |
571 | ||
572 | inf_obj->nthreads = 0; | |
573 | ||
574 | Py_DECREF ((PyObject *) inf_obj); | |
575 | do_cleanups (cleanup); | |
576 | } | |
577 | ||
578 | void | |
579 | gdbpy_initialize_inferior (void) | |
580 | { | |
581 | if (PyType_Ready (&inferior_object_type) < 0) | |
582 | return; | |
583 | ||
584 | Py_INCREF (&inferior_object_type); | |
585 | PyModule_AddObject (gdb_module, "Inferior", | |
586 | (PyObject *) &inferior_object_type); | |
587 | ||
588 | infpy_inf_data_key = | |
589 | register_inferior_data_with_cleanup (py_free_inferior); | |
590 | ||
591 | observer_attach_new_thread (add_thread_object); | |
592 | observer_attach_thread_exit (delete_thread_object); | |
593 | ||
594 | if (PyType_Ready (&membuf_object_type) < 0) | |
595 | return; | |
596 | ||
597 | Py_INCREF (&membuf_object_type); | |
598 | PyModule_AddObject (gdb_module, "Membuf", (PyObject *) | |
599 | &membuf_object_type); | |
600 | } | |
601 | ||
602 | static PyGetSetDef inferior_object_getset[] = | |
603 | { | |
604 | { "num", infpy_get_num, NULL, "ID of inferior, as assigned by GDB.", NULL }, | |
605 | { "pid", infpy_get_pid, NULL, "PID of inferior, as assigned by the OS.", | |
606 | NULL }, | |
607 | { "was_attached", infpy_get_was_attached, NULL, | |
608 | "True if the inferior was created using 'attach'.", NULL }, | |
609 | { NULL } | |
610 | }; | |
611 | ||
612 | static PyMethodDef inferior_object_methods[] = | |
613 | { | |
614 | { "threads", infpy_threads, METH_NOARGS, | |
615 | "Return all the threads of this inferior." }, | |
616 | { "read_memory", (PyCFunction) infpy_read_memory, | |
617 | METH_VARARGS | METH_KEYWORDS, | |
618 | "read_memory (address, length) -> buffer\n\ | |
619 | Return a buffer object for reading from the inferior's memory." }, | |
620 | { "write_memory", (PyCFunction) infpy_write_memory, | |
621 | METH_VARARGS | METH_KEYWORDS, | |
622 | "write_memory (address, buffer [, length])\n\ | |
623 | Write the given buffer object to the inferior's memory." }, | |
624 | { "search_memory", (PyCFunction) infpy_search_memory, | |
625 | METH_VARARGS | METH_KEYWORDS, | |
626 | "search_memory (address, length, pattern) -> long\n\ | |
627 | Return a long with the address of a match, or None." }, | |
628 | { NULL } | |
629 | }; | |
630 | ||
631 | static PyTypeObject inferior_object_type = | |
632 | { | |
633 | PyObject_HEAD_INIT (NULL) | |
634 | 0, /* ob_size */ | |
635 | "gdb.Inferior", /* tp_name */ | |
636 | sizeof (inferior_object), /* tp_basicsize */ | |
637 | 0, /* tp_itemsize */ | |
638 | 0, /* tp_dealloc */ | |
639 | 0, /* tp_print */ | |
640 | 0, /* tp_getattr */ | |
641 | 0, /* tp_setattr */ | |
642 | 0, /* tp_compare */ | |
643 | 0, /* tp_repr */ | |
644 | 0, /* tp_as_number */ | |
645 | 0, /* tp_as_sequence */ | |
646 | 0, /* tp_as_mapping */ | |
647 | 0, /* tp_hash */ | |
648 | 0, /* tp_call */ | |
649 | 0, /* tp_str */ | |
650 | 0, /* tp_getattro */ | |
651 | 0, /* tp_setattro */ | |
652 | 0, /* tp_as_buffer */ | |
653 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER, /* tp_flags */ | |
654 | "GDB inferior object", /* tp_doc */ | |
655 | 0, /* tp_traverse */ | |
656 | 0, /* tp_clear */ | |
657 | 0, /* tp_richcompare */ | |
658 | 0, /* tp_weaklistoffset */ | |
659 | 0, /* tp_iter */ | |
660 | 0, /* tp_iternext */ | |
661 | inferior_object_methods, /* tp_methods */ | |
662 | 0, /* tp_members */ | |
663 | inferior_object_getset, /* tp_getset */ | |
664 | 0, /* tp_base */ | |
665 | 0, /* tp_dict */ | |
666 | 0, /* tp_descr_get */ | |
667 | 0, /* tp_descr_set */ | |
668 | 0, /* tp_dictoffset */ | |
669 | 0, /* tp_init */ | |
670 | 0 /* tp_alloc */ | |
671 | }; | |
672 | ||
673 | /* Python doesn't provide a decent way to get compatibility here. */ | |
674 | #if HAVE_LIBPYTHON2_4 | |
675 | #define CHARBUFFERPROC_NAME getcharbufferproc | |
676 | #else | |
677 | #define CHARBUFFERPROC_NAME charbufferproc | |
678 | #endif | |
679 | ||
680 | static PyBufferProcs buffer_procs = { | |
681 | get_read_buffer, | |
682 | get_write_buffer, | |
683 | get_seg_count, | |
684 | /* The cast here works around a difference between Python 2.4 and | |
685 | Python 2.5. */ | |
686 | (CHARBUFFERPROC_NAME) get_char_buffer | |
687 | }; | |
688 | ||
689 | static PyTypeObject membuf_object_type = { | |
690 | PyObject_HEAD_INIT (NULL) | |
691 | 0, /*ob_size*/ | |
692 | "gdb.Membuf", /*tp_name*/ | |
693 | sizeof (membuf_object), /*tp_basicsize*/ | |
694 | 0, /*tp_itemsize*/ | |
695 | mbpy_dealloc, /*tp_dealloc*/ | |
696 | 0, /*tp_print*/ | |
697 | 0, /*tp_getattr*/ | |
698 | 0, /*tp_setattr*/ | |
699 | 0, /*tp_compare*/ | |
700 | 0, /*tp_repr*/ | |
701 | 0, /*tp_as_number*/ | |
702 | 0, /*tp_as_sequence*/ | |
703 | 0, /*tp_as_mapping*/ | |
704 | 0, /*tp_hash */ | |
705 | 0, /*tp_call*/ | |
706 | mbpy_str, /*tp_str*/ | |
707 | 0, /*tp_getattro*/ | |
708 | 0, /*tp_setattro*/ | |
709 | &buffer_procs, /*tp_as_buffer*/ | |
710 | Py_TPFLAGS_DEFAULT, /*tp_flags*/ | |
711 | "GDB memory buffer object", /*tp_doc*/ | |
712 | 0, /* tp_traverse */ | |
713 | 0, /* tp_clear */ | |
714 | 0, /* tp_richcompare */ | |
715 | 0, /* tp_weaklistoffset */ | |
716 | 0, /* tp_iter */ | |
717 | 0, /* tp_iternext */ | |
718 | 0, /* tp_methods */ | |
719 | 0, /* tp_members */ | |
720 | 0, /* tp_getset */ | |
721 | 0, /* tp_base */ | |
722 | 0, /* tp_dict */ | |
723 | 0, /* tp_descr_get */ | |
724 | 0, /* tp_descr_set */ | |
725 | 0, /* tp_dictoffset */ | |
726 | 0, /* tp_init */ | |
727 | 0, /* tp_alloc */ | |
728 | PyType_GenericNew /* tp_new */ | |
729 | }; |