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75c0bdf4 TW |
1 | /* Python interface to btrace instruction history. |
2 | ||
3 | Copyright 2016-2017 Free Software Foundation, Inc. | |
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 "gdbcore.h" | |
22 | #include "gdbcmd.h" | |
23 | #include "gdbthread.h" | |
24 | #include "btrace.h" | |
ae20e79a | 25 | #include "py-record.h" |
75c0bdf4 TW |
26 | #include "py-record-btrace.h" |
27 | #include "disasm.h" | |
28 | ||
29 | #if defined (IS_PY3K) | |
30 | ||
31 | #define BTPY_PYSLICE(x) (x) | |
32 | ||
33 | #else | |
34 | ||
35 | #define BTPY_PYSLICE(x) ((PySliceObject *) x) | |
36 | ||
37 | #endif | |
38 | ||
75c0bdf4 TW |
39 | /* Python object for btrace record lists. */ |
40 | ||
41 | typedef struct { | |
42 | PyObject_HEAD | |
43 | ||
44 | /* The thread this list belongs to. */ | |
45 | ptid_t ptid; | |
46 | ||
47 | /* The first index being part of this list. */ | |
48 | Py_ssize_t first; | |
49 | ||
50 | /* The last index begin part of this list. */ | |
51 | Py_ssize_t last; | |
52 | ||
53 | /* Stride size. */ | |
54 | Py_ssize_t step; | |
55 | ||
0ed5da75 | 56 | /* Either &BTPY_CALL_TYPE or &RECPY_INSN_TYPE. */ |
75c0bdf4 TW |
57 | PyTypeObject* element_type; |
58 | } btpy_list_object; | |
59 | ||
75c0bdf4 TW |
60 | /* Python type for btrace lists. */ |
61 | ||
62 | static PyTypeObject btpy_list_type = { | |
63 | PyVarObject_HEAD_INIT (NULL, 0) | |
64 | }; | |
65 | ||
0ed5da75 TW |
66 | /* Returns either a btrace_insn for the given Python gdb.RecordInstruction |
67 | object or sets an appropriate Python exception and returns NULL. */ | |
75c0bdf4 | 68 | |
0ed5da75 TW |
69 | static const btrace_insn * |
70 | btrace_insn_from_recpy_insn (const PyObject * const pyobject) | |
75c0bdf4 | 71 | { |
0ed5da75 TW |
72 | const btrace_insn *insn; |
73 | const recpy_element_object *obj; | |
74 | thread_info *tinfo; | |
75 | btrace_insn_iterator iter; | |
75c0bdf4 | 76 | |
0ed5da75 TW |
77 | if (Py_TYPE (pyobject) != &recpy_insn_type) |
78 | { | |
79 | PyErr_Format (gdbpy_gdb_error, _("Must be gdb.RecordInstruction")); | |
80 | return NULL; | |
81 | } | |
75c0bdf4 | 82 | |
0ed5da75 TW |
83 | obj = (const recpy_element_object *) pyobject; |
84 | tinfo = find_thread_ptid (obj->ptid); | |
75c0bdf4 | 85 | |
0ed5da75 TW |
86 | if (tinfo == NULL || btrace_is_empty (tinfo)) |
87 | { | |
88 | PyErr_Format (gdbpy_gdb_error, _("No such instruction.")); | |
89 | return NULL; | |
90 | } | |
91 | ||
92 | if (btrace_find_insn_by_number (&iter, &tinfo->btrace, obj->number) == 0) | |
93 | { | |
94 | PyErr_Format (gdbpy_gdb_error, _("No such instruction.")); | |
95 | return NULL; | |
96 | } | |
97 | ||
98 | insn = btrace_insn_get (&iter); | |
99 | if (insn == NULL) | |
100 | { | |
101 | PyErr_Format (gdbpy_gdb_error, _("Not a valid instruction.")); | |
102 | return NULL; | |
103 | } | |
104 | ||
105 | return insn; | |
75c0bdf4 TW |
106 | } |
107 | ||
14f819c8 TW |
108 | /* Returns either a btrace_function for the given Python |
109 | gdb.RecordFunctionSegment object or sets an appropriate Python exception and | |
110 | returns NULL. */ | |
111 | ||
112 | static const btrace_function * | |
113 | btrace_func_from_recpy_func (const PyObject * const pyobject) | |
114 | { | |
115 | const btrace_function *func; | |
116 | const recpy_element_object *obj; | |
117 | thread_info *tinfo; | |
118 | btrace_call_iterator iter; | |
119 | ||
120 | if (Py_TYPE (pyobject) != &recpy_func_type) | |
121 | { | |
122 | PyErr_Format (gdbpy_gdb_error, _("Must be gdb.RecordFunctionSegment")); | |
123 | return NULL; | |
124 | } | |
125 | ||
126 | obj = (const recpy_element_object *) pyobject; | |
127 | tinfo = find_thread_ptid (obj->ptid); | |
128 | ||
129 | if (tinfo == NULL || btrace_is_empty (tinfo)) | |
130 | { | |
131 | PyErr_Format (gdbpy_gdb_error, _("No such function segment.")); | |
132 | return NULL; | |
133 | } | |
134 | ||
135 | if (btrace_find_call_by_number (&iter, &tinfo->btrace, obj->number) == 0) | |
136 | { | |
137 | PyErr_Format (gdbpy_gdb_error, _("No such function segment.")); | |
138 | return NULL; | |
139 | } | |
140 | ||
141 | func = btrace_call_get (&iter); | |
142 | if (func == NULL) | |
143 | { | |
144 | PyErr_Format (gdbpy_gdb_error, _("Not a valid function segment.")); | |
145 | return NULL; | |
146 | } | |
147 | ||
148 | return func; | |
149 | } | |
150 | ||
913aeadd | 151 | /* Looks at the recorded item with the number NUMBER and create a |
0ed5da75 | 152 | gdb.RecordInstruction or gdb.RecordGap object for it accordingly. */ |
75c0bdf4 TW |
153 | |
154 | static PyObject * | |
913aeadd | 155 | btpy_insn_or_gap_new (const thread_info *tinfo, Py_ssize_t number) |
75c0bdf4 | 156 | { |
913aeadd TW |
157 | btrace_insn_iterator iter; |
158 | int err_code; | |
159 | ||
160 | btrace_find_insn_by_number (&iter, &tinfo->btrace, number); | |
161 | err_code = btrace_insn_get_error (&iter); | |
162 | ||
163 | if (err_code != 0) | |
164 | { | |
165 | const btrace_config *config; | |
166 | const char *err_string; | |
167 | ||
168 | config = btrace_conf (&tinfo->btrace); | |
169 | err_string = btrace_decode_error (config->format, err_code); | |
170 | ||
171 | return recpy_gap_new (err_code, err_string, number); | |
172 | } | |
173 | ||
0ed5da75 | 174 | return recpy_insn_new (tinfo->ptid, RECORD_METHOD_BTRACE, number); |
75c0bdf4 TW |
175 | } |
176 | ||
75c0bdf4 TW |
177 | /* Create a new gdb.BtraceList object. */ |
178 | ||
179 | static PyObject * | |
180 | btpy_list_new (ptid_t ptid, Py_ssize_t first, Py_ssize_t last, Py_ssize_t step, | |
181 | PyTypeObject *element_type) | |
182 | { | |
183 | btpy_list_object * const obj = PyObject_New (btpy_list_object, | |
184 | &btpy_list_type); | |
185 | ||
186 | if (obj == NULL) | |
187 | return NULL; | |
188 | ||
189 | obj->ptid = ptid; | |
190 | obj->first = first; | |
191 | obj->last = last; | |
192 | obj->step = step; | |
193 | obj->element_type = element_type; | |
194 | ||
195 | return (PyObject *) obj; | |
196 | } | |
197 | ||
0ed5da75 TW |
198 | /* Implementation of RecordInstruction.sal [gdb.Symtab_and_line] for btrace. |
199 | Returns the SAL associated with this instruction. */ | |
75c0bdf4 | 200 | |
0ed5da75 TW |
201 | PyObject * |
202 | recpy_bt_insn_sal (PyObject *self, void *closure) | |
75c0bdf4 | 203 | { |
0ed5da75 | 204 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 TW |
205 | PyObject *result = NULL; |
206 | ||
75c0bdf4 | 207 | if (insn == NULL) |
0ed5da75 | 208 | return NULL; |
75c0bdf4 TW |
209 | |
210 | TRY | |
211 | { | |
212 | result = symtab_and_line_to_sal_object (find_pc_line (insn->pc, 0)); | |
213 | } | |
214 | CATCH (except, RETURN_MASK_ALL) | |
215 | { | |
216 | GDB_PY_HANDLE_EXCEPTION (except); | |
217 | } | |
218 | END_CATCH | |
219 | ||
220 | return result; | |
221 | } | |
222 | ||
0ed5da75 TW |
223 | /* Implementation of RecordInstruction.pc [int] for btrace. |
224 | Returns the instruction address. */ | |
75c0bdf4 | 225 | |
0ed5da75 TW |
226 | PyObject * |
227 | recpy_bt_insn_pc (PyObject *self, void *closure) | |
75c0bdf4 | 228 | { |
0ed5da75 | 229 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 | 230 | |
75c0bdf4 | 231 | if (insn == NULL) |
0ed5da75 | 232 | return NULL; |
75c0bdf4 TW |
233 | |
234 | return gdb_py_long_from_ulongest (insn->pc); | |
235 | } | |
236 | ||
0ed5da75 TW |
237 | /* Implementation of RecordInstruction.size [int] for btrace. |
238 | Returns the instruction size. */ | |
75c0bdf4 | 239 | |
0ed5da75 TW |
240 | PyObject * |
241 | recpy_bt_insn_size (PyObject *self, void *closure) | |
75c0bdf4 | 242 | { |
0ed5da75 | 243 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 | 244 | |
75c0bdf4 | 245 | if (insn == NULL) |
0ed5da75 | 246 | return NULL; |
75c0bdf4 TW |
247 | |
248 | return PyInt_FromLong (insn->size); | |
249 | } | |
250 | ||
0ed5da75 | 251 | /* Implementation of RecordInstruction.is_speculative [bool] for btrace. |
75c0bdf4 TW |
252 | Returns if this instruction was executed speculatively. */ |
253 | ||
0ed5da75 TW |
254 | PyObject * |
255 | recpy_bt_insn_is_speculative (PyObject *self, void *closure) | |
75c0bdf4 | 256 | { |
0ed5da75 | 257 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 | 258 | |
75c0bdf4 | 259 | if (insn == NULL) |
0ed5da75 | 260 | return NULL; |
75c0bdf4 TW |
261 | |
262 | if (insn->flags & BTRACE_INSN_FLAG_SPECULATIVE) | |
263 | Py_RETURN_TRUE; | |
264 | else | |
265 | Py_RETURN_FALSE; | |
266 | } | |
267 | ||
0ed5da75 | 268 | /* Implementation of RecordInstruction.data [buffer] for btrace. |
75c0bdf4 TW |
269 | Returns raw instruction data. */ |
270 | ||
0ed5da75 TW |
271 | PyObject * |
272 | recpy_bt_insn_data (PyObject *self, void *closure) | |
75c0bdf4 | 273 | { |
0ed5da75 | 274 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 TW |
275 | gdb_byte *buffer = NULL; |
276 | PyObject *object; | |
277 | ||
75c0bdf4 | 278 | if (insn == NULL) |
0ed5da75 | 279 | return NULL; |
75c0bdf4 TW |
280 | |
281 | TRY | |
282 | { | |
283 | buffer = (gdb_byte *) xmalloc (insn->size); | |
284 | read_memory (insn->pc, buffer, insn->size); | |
285 | } | |
286 | CATCH (except, RETURN_MASK_ALL) | |
287 | { | |
288 | xfree (buffer); | |
289 | GDB_PY_HANDLE_EXCEPTION (except); | |
290 | } | |
291 | END_CATCH | |
292 | ||
293 | object = PyBytes_FromStringAndSize ((const char*) buffer, insn->size); | |
294 | xfree (buffer); | |
295 | ||
296 | if (object == NULL) | |
297 | return NULL; | |
298 | ||
cee59b3f | 299 | #ifdef IS_PY3K |
75c0bdf4 | 300 | return PyMemoryView_FromObject (object); |
cee59b3f TW |
301 | #else |
302 | return PyBuffer_FromObject (object, 0, Py_END_OF_BUFFER); | |
303 | #endif | |
304 | ||
75c0bdf4 TW |
305 | } |
306 | ||
0ed5da75 TW |
307 | /* Implementation of RecordInstruction.decoded [str] for btrace. |
308 | Returns the instruction as human readable string. */ | |
75c0bdf4 | 309 | |
0ed5da75 TW |
310 | PyObject * |
311 | recpy_bt_insn_decoded (PyObject *self, void *closure) | |
75c0bdf4 | 312 | { |
0ed5da75 | 313 | const btrace_insn * const insn = btrace_insn_from_recpy_insn (self); |
75c0bdf4 TW |
314 | string_file strfile; |
315 | ||
75c0bdf4 | 316 | if (insn == NULL) |
0ed5da75 | 317 | return NULL; |
75c0bdf4 TW |
318 | |
319 | TRY | |
320 | { | |
321 | gdb_print_insn (target_gdbarch (), insn->pc, &strfile, NULL); | |
322 | } | |
323 | CATCH (except, RETURN_MASK_ALL) | |
324 | { | |
325 | gdbpy_convert_exception (except); | |
326 | return NULL; | |
327 | } | |
328 | END_CATCH | |
329 | ||
330 | ||
331 | return PyBytes_FromString (strfile.string ().c_str ()); | |
332 | } | |
333 | ||
14f819c8 TW |
334 | /* Implementation of RecordFunctionSegment.level [int] for btrace. |
335 | Returns the call level. */ | |
75c0bdf4 | 336 | |
14f819c8 TW |
337 | PyObject * |
338 | recpy_bt_func_level (PyObject *self, void *closure) | |
75c0bdf4 | 339 | { |
14f819c8 TW |
340 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
341 | thread_info *tinfo; | |
75c0bdf4 | 342 | |
75c0bdf4 | 343 | if (func == NULL) |
14f819c8 | 344 | return NULL; |
75c0bdf4 | 345 | |
14f819c8 TW |
346 | tinfo = find_thread_ptid (((recpy_element_object *) self)->ptid); |
347 | return PyInt_FromLong (tinfo->btrace.level + func->level); | |
75c0bdf4 TW |
348 | } |
349 | ||
14f819c8 TW |
350 | /* Implementation of RecordFunctionSegment.symbol [gdb.Symbol] for btrace. |
351 | Returns the symbol associated with this function call. */ | |
75c0bdf4 | 352 | |
14f819c8 TW |
353 | PyObject * |
354 | recpy_bt_func_symbol (PyObject *self, void *closure) | |
75c0bdf4 | 355 | { |
14f819c8 | 356 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 | 357 | |
75c0bdf4 | 358 | if (func == NULL) |
14f819c8 | 359 | return NULL; |
75c0bdf4 TW |
360 | |
361 | if (func->sym == NULL) | |
362 | Py_RETURN_NONE; | |
363 | ||
364 | return symbol_to_symbol_object (func->sym); | |
365 | } | |
366 | ||
14f819c8 TW |
367 | /* Implementation of RecordFunctionSegment.instructions [list] for btrace. |
368 | Returns the list of instructions that belong to this function call. */ | |
75c0bdf4 | 369 | |
14f819c8 TW |
370 | PyObject * |
371 | recpy_bt_func_instructions (PyObject *self, void *closure) | |
75c0bdf4 | 372 | { |
14f819c8 | 373 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 TW |
374 | unsigned int len; |
375 | ||
75c0bdf4 | 376 | if (func == NULL) |
14f819c8 | 377 | return NULL; |
75c0bdf4 TW |
378 | |
379 | len = VEC_length (btrace_insn_s, func->insn); | |
380 | ||
381 | /* Gaps count as one instruction. */ | |
382 | if (len == 0) | |
383 | len = 1; | |
384 | ||
14f819c8 TW |
385 | return btpy_list_new (((recpy_element_object *) self)->ptid, |
386 | func->insn_offset, func->insn_offset + len, 1, | |
387 | &recpy_insn_type); | |
75c0bdf4 TW |
388 | } |
389 | ||
14f819c8 TW |
390 | /* Implementation of RecordFunctionSegment.up [RecordFunctionSegment] for |
391 | btrace. Returns the caller / returnee of this function. */ | |
75c0bdf4 | 392 | |
14f819c8 TW |
393 | PyObject * |
394 | recpy_bt_func_up (PyObject *self, void *closure) | |
75c0bdf4 | 395 | { |
14f819c8 | 396 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 | 397 | |
75c0bdf4 | 398 | if (func == NULL) |
14f819c8 | 399 | return NULL; |
75c0bdf4 | 400 | |
42bfe59e | 401 | if (func->up == 0) |
75c0bdf4 TW |
402 | Py_RETURN_NONE; |
403 | ||
14f819c8 | 404 | return recpy_func_new (((recpy_element_object *) self)->ptid, |
42bfe59e | 405 | RECORD_METHOD_BTRACE, func->up); |
75c0bdf4 TW |
406 | } |
407 | ||
14f819c8 TW |
408 | /* Implementation of RecordFunctionSegment.prev [RecordFunctionSegment] for |
409 | btrace. Returns a previous segment of this function. */ | |
75c0bdf4 | 410 | |
14f819c8 TW |
411 | PyObject * |
412 | recpy_bt_func_prev (PyObject *self, void *closure) | |
75c0bdf4 | 413 | { |
14f819c8 | 414 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 | 415 | |
75c0bdf4 | 416 | if (func == NULL) |
14f819c8 | 417 | return NULL; |
75c0bdf4 | 418 | |
4aeb0dfc | 419 | if (func->prev == 0) |
75c0bdf4 TW |
420 | Py_RETURN_NONE; |
421 | ||
14f819c8 | 422 | return recpy_func_new (((recpy_element_object *) self)->ptid, |
4aeb0dfc | 423 | RECORD_METHOD_BTRACE, func->prev); |
75c0bdf4 TW |
424 | } |
425 | ||
14f819c8 TW |
426 | /* Implementation of RecordFunctionSegment.next [RecordFunctionSegment] for |
427 | btrace. Returns a following segment of this function. */ | |
75c0bdf4 | 428 | |
14f819c8 TW |
429 | PyObject * |
430 | recpy_bt_func_next (PyObject *self, void *closure) | |
75c0bdf4 | 431 | { |
14f819c8 | 432 | const btrace_function * const func = btrace_func_from_recpy_func (self); |
75c0bdf4 | 433 | |
75c0bdf4 | 434 | if (func == NULL) |
14f819c8 | 435 | return NULL; |
75c0bdf4 | 436 | |
4aeb0dfc | 437 | if (func->next == 0) |
75c0bdf4 TW |
438 | Py_RETURN_NONE; |
439 | ||
14f819c8 | 440 | return recpy_func_new (((recpy_element_object *) self)->ptid, |
4aeb0dfc | 441 | RECORD_METHOD_BTRACE, func->next); |
75c0bdf4 TW |
442 | } |
443 | ||
444 | /* Implementation of BtraceList.__len__ (self) -> int. */ | |
445 | ||
446 | static Py_ssize_t | |
447 | btpy_list_length (PyObject *self) | |
448 | { | |
449 | const btpy_list_object * const obj = (btpy_list_object *) self; | |
450 | const Py_ssize_t distance = obj->last - obj->first; | |
451 | const Py_ssize_t result = distance / obj->step; | |
452 | ||
453 | if ((distance % obj->step) == 0) | |
454 | return result; | |
455 | ||
456 | return result + 1; | |
457 | } | |
458 | ||
459 | /* Implementation of | |
460 | BtraceList.__getitem__ (self, key) -> BtraceInstruction and | |
461 | BtraceList.__getitem__ (self, key) -> BtraceFunctionCall. */ | |
462 | ||
463 | static PyObject * | |
464 | btpy_list_item (PyObject *self, Py_ssize_t index) | |
465 | { | |
466 | const btpy_list_object * const obj = (btpy_list_object *) self; | |
467 | struct thread_info * const tinfo = find_thread_ptid (obj->ptid); | |
0ed5da75 | 468 | Py_ssize_t number; |
75c0bdf4 TW |
469 | |
470 | if (index < 0 || index >= btpy_list_length (self)) | |
471 | return PyErr_Format (PyExc_IndexError, _("Index out of range: %zd."), | |
472 | index); | |
473 | ||
0ed5da75 TW |
474 | number = obj->first + (obj->step * index); |
475 | ||
476 | if (obj->element_type == &recpy_insn_type) | |
477 | return recpy_insn_new (obj->ptid, RECORD_METHOD_BTRACE, number); | |
478 | else | |
14f819c8 | 479 | return recpy_func_new (obj->ptid, RECORD_METHOD_BTRACE, number); |
75c0bdf4 TW |
480 | } |
481 | ||
482 | /* Implementation of BtraceList.__getitem__ (self, slice) -> BtraceList. */ | |
483 | ||
484 | static PyObject * | |
485 | btpy_list_slice (PyObject *self, PyObject *value) | |
486 | { | |
487 | const btpy_list_object * const obj = (btpy_list_object *) self; | |
488 | const Py_ssize_t length = btpy_list_length (self); | |
489 | Py_ssize_t start, stop, step, slicelength; | |
490 | ||
491 | if (PyInt_Check (value)) | |
492 | { | |
493 | Py_ssize_t index = PyInt_AsSsize_t (value); | |
494 | ||
495 | /* Emulate Python behavior for negative indices. */ | |
496 | if (index < 0) | |
497 | index += length; | |
498 | ||
499 | return btpy_list_item (self, index); | |
500 | } | |
501 | ||
502 | if (!PySlice_Check (value)) | |
503 | return PyErr_Format (PyExc_TypeError, _("Index must be int or slice.")); | |
504 | ||
505 | if (0 != PySlice_GetIndicesEx (BTPY_PYSLICE (value), length, &start, &stop, | |
506 | &step, &slicelength)) | |
507 | return NULL; | |
508 | ||
509 | return btpy_list_new (obj->ptid, obj->first + obj->step * start, | |
510 | obj->first + obj->step * stop, obj->step * step, | |
511 | obj->element_type); | |
512 | } | |
513 | ||
514 | /* Helper function that returns the position of an element in a BtraceList | |
515 | or -1 if the element is not in the list. */ | |
516 | ||
517 | static LONGEST | |
518 | btpy_list_position (PyObject *self, PyObject *value) | |
519 | { | |
520 | const btpy_list_object * const list_obj = (btpy_list_object *) self; | |
0ed5da75 | 521 | const recpy_element_object * const obj = (const recpy_element_object *) value; |
75c0bdf4 TW |
522 | Py_ssize_t index = obj->number; |
523 | ||
524 | if (list_obj->element_type != Py_TYPE (value)) | |
525 | return -1; | |
526 | ||
527 | if (!ptid_equal (list_obj->ptid, obj->ptid)) | |
528 | return -1; | |
529 | ||
530 | if (index < list_obj->first || index > list_obj->last) | |
531 | return -1; | |
532 | ||
533 | index -= list_obj->first; | |
534 | ||
535 | if (index % list_obj->step != 0) | |
536 | return -1; | |
537 | ||
538 | return index / list_obj->step; | |
539 | } | |
540 | ||
541 | /* Implementation of "in" operator for BtraceLists. */ | |
542 | ||
543 | static int | |
544 | btpy_list_contains (PyObject *self, PyObject *value) | |
545 | { | |
546 | if (btpy_list_position (self, value) < 0) | |
547 | return 0; | |
548 | ||
549 | return 1; | |
550 | } | |
551 | ||
552 | /* Implementation of BtraceLists.index (self, value) -> int. */ | |
553 | ||
554 | static PyObject * | |
555 | btpy_list_index (PyObject *self, PyObject *value) | |
556 | { | |
557 | const LONGEST index = btpy_list_position (self, value); | |
558 | ||
559 | if (index < 0) | |
560 | return PyErr_Format (PyExc_ValueError, _("Not in list.")); | |
561 | ||
562 | return gdb_py_long_from_longest (index); | |
563 | } | |
564 | ||
565 | /* Implementation of BtraceList.count (self, value) -> int. */ | |
566 | ||
567 | static PyObject * | |
568 | btpy_list_count (PyObject *self, PyObject *value) | |
569 | { | |
570 | /* We know that if an element is in the list, it is so exactly one time, | |
571 | enabling us to reuse the "is element of" check. */ | |
572 | return PyInt_FromLong (btpy_list_contains (self, value)); | |
573 | } | |
574 | ||
575 | /* Python rich compare function to allow for equality and inequality checks | |
576 | in Python. */ | |
577 | ||
578 | static PyObject * | |
579 | btpy_list_richcompare (PyObject *self, PyObject *other, int op) | |
580 | { | |
581 | const btpy_list_object * const obj1 = (btpy_list_object *) self; | |
582 | const btpy_list_object * const obj2 = (btpy_list_object *) other; | |
583 | ||
584 | if (Py_TYPE (self) != Py_TYPE (other)) | |
585 | { | |
586 | Py_INCREF (Py_NotImplemented); | |
587 | return Py_NotImplemented; | |
588 | } | |
589 | ||
590 | switch (op) | |
591 | { | |
592 | case Py_EQ: | |
593 | if (ptid_equal (obj1->ptid, obj2->ptid) | |
594 | && obj1->element_type == obj2->element_type | |
595 | && obj1->first == obj2->first | |
596 | && obj1->last == obj2->last | |
597 | && obj1->step == obj2->step) | |
598 | Py_RETURN_TRUE; | |
599 | else | |
600 | Py_RETURN_FALSE; | |
601 | ||
602 | case Py_NE: | |
603 | if (!ptid_equal (obj1->ptid, obj2->ptid) | |
604 | || obj1->element_type != obj2->element_type | |
605 | || obj1->first != obj2->first | |
606 | || obj1->last != obj2->last | |
607 | || obj1->step != obj2->step) | |
608 | Py_RETURN_TRUE; | |
609 | else | |
610 | Py_RETURN_FALSE; | |
611 | ||
612 | default: | |
613 | break; | |
614 | } | |
615 | ||
616 | Py_INCREF (Py_NotImplemented); | |
617 | return Py_NotImplemented; | |
618 | } | |
619 | ||
620 | /* Implementation of | |
621 | BtraceRecord.method [str]. */ | |
622 | ||
623 | PyObject * | |
624 | recpy_bt_method (PyObject *self, void *closure) | |
625 | { | |
626 | return PyString_FromString ("btrace"); | |
627 | } | |
628 | ||
629 | /* Implementation of | |
630 | BtraceRecord.format [str]. */ | |
631 | ||
632 | PyObject * | |
633 | recpy_bt_format (PyObject *self, void *closure) | |
634 | { | |
ae20e79a TW |
635 | const recpy_record_object * const record = (recpy_record_object *) self; |
636 | const struct thread_info * const tinfo = find_thread_ptid (record->ptid); | |
75c0bdf4 TW |
637 | const struct btrace_config * config; |
638 | ||
639 | if (tinfo == NULL) | |
640 | Py_RETURN_NONE; | |
641 | ||
642 | config = btrace_conf (&tinfo->btrace); | |
643 | ||
644 | if (config == NULL) | |
645 | Py_RETURN_NONE; | |
646 | ||
647 | return PyString_FromString (btrace_format_short_string (config->format)); | |
648 | } | |
649 | ||
650 | /* Implementation of | |
651 | BtraceRecord.replay_position [BtraceInstruction]. */ | |
652 | ||
653 | PyObject * | |
654 | recpy_bt_replay_position (PyObject *self, void *closure) | |
655 | { | |
ae20e79a TW |
656 | const recpy_record_object * const record = (recpy_record_object *) self; |
657 | const struct thread_info * const tinfo = find_thread_ptid (record->ptid); | |
75c0bdf4 TW |
658 | |
659 | if (tinfo == NULL) | |
660 | Py_RETURN_NONE; | |
661 | ||
662 | if (tinfo->btrace.replay == NULL) | |
663 | Py_RETURN_NONE; | |
664 | ||
913aeadd TW |
665 | return btpy_insn_or_gap_new (tinfo, |
666 | btrace_insn_number (tinfo->btrace.replay)); | |
75c0bdf4 TW |
667 | } |
668 | ||
669 | /* Implementation of | |
670 | BtraceRecord.begin [BtraceInstruction]. */ | |
671 | ||
672 | PyObject * | |
673 | recpy_bt_begin (PyObject *self, void *closure) | |
674 | { | |
ae20e79a TW |
675 | const recpy_record_object * const record = (recpy_record_object *) self; |
676 | struct thread_info * const tinfo = find_thread_ptid (record->ptid); | |
75c0bdf4 TW |
677 | struct btrace_insn_iterator iterator; |
678 | ||
679 | if (tinfo == NULL) | |
680 | Py_RETURN_NONE; | |
681 | ||
682 | btrace_fetch (tinfo); | |
683 | ||
684 | if (btrace_is_empty (tinfo)) | |
685 | Py_RETURN_NONE; | |
686 | ||
687 | btrace_insn_begin (&iterator, &tinfo->btrace); | |
913aeadd | 688 | return btpy_insn_or_gap_new (tinfo, btrace_insn_number (&iterator)); |
75c0bdf4 TW |
689 | } |
690 | ||
691 | /* Implementation of | |
692 | BtraceRecord.end [BtraceInstruction]. */ | |
693 | ||
694 | PyObject * | |
695 | recpy_bt_end (PyObject *self, void *closure) | |
696 | { | |
ae20e79a TW |
697 | const recpy_record_object * const record = (recpy_record_object *) self; |
698 | struct thread_info * const tinfo = find_thread_ptid (record->ptid); | |
75c0bdf4 TW |
699 | struct btrace_insn_iterator iterator; |
700 | ||
701 | if (tinfo == NULL) | |
702 | Py_RETURN_NONE; | |
703 | ||
704 | btrace_fetch (tinfo); | |
705 | ||
706 | if (btrace_is_empty (tinfo)) | |
707 | Py_RETURN_NONE; | |
708 | ||
709 | btrace_insn_end (&iterator, &tinfo->btrace); | |
913aeadd | 710 | return btpy_insn_or_gap_new (tinfo, btrace_insn_number (&iterator)); |
75c0bdf4 TW |
711 | } |
712 | ||
713 | /* Implementation of | |
714 | BtraceRecord.instruction_history [list]. */ | |
715 | ||
716 | PyObject * | |
717 | recpy_bt_instruction_history (PyObject *self, void *closure) | |
718 | { | |
ae20e79a TW |
719 | const recpy_record_object * const record = (recpy_record_object *) self; |
720 | struct thread_info * const tinfo = find_thread_ptid (record->ptid); | |
75c0bdf4 TW |
721 | struct btrace_insn_iterator iterator; |
722 | unsigned long first = 0; | |
723 | unsigned long last = 0; | |
724 | ||
725 | if (tinfo == NULL) | |
726 | Py_RETURN_NONE; | |
727 | ||
728 | btrace_fetch (tinfo); | |
729 | ||
730 | if (btrace_is_empty (tinfo)) | |
731 | Py_RETURN_NONE; | |
732 | ||
733 | btrace_insn_begin (&iterator, &tinfo->btrace); | |
734 | first = btrace_insn_number (&iterator); | |
735 | ||
736 | btrace_insn_end (&iterator, &tinfo->btrace); | |
737 | last = btrace_insn_number (&iterator); | |
738 | ||
0ed5da75 | 739 | return btpy_list_new (record->ptid, first, last, 1, &recpy_insn_type); |
75c0bdf4 TW |
740 | } |
741 | ||
742 | /* Implementation of | |
743 | BtraceRecord.function_call_history [list]. */ | |
744 | ||
745 | PyObject * | |
746 | recpy_bt_function_call_history (PyObject *self, void *closure) | |
747 | { | |
ae20e79a TW |
748 | const recpy_record_object * const record = (recpy_record_object *) self; |
749 | struct thread_info * const tinfo = find_thread_ptid (record->ptid); | |
8d0050ea TW |
750 | struct btrace_call_iterator iterator; |
751 | unsigned long first = 0; | |
752 | unsigned long last = 0; | |
75c0bdf4 | 753 | |
8d0050ea TW |
754 | if (tinfo == NULL) |
755 | Py_RETURN_NONE; | |
75c0bdf4 | 756 | |
8d0050ea | 757 | btrace_fetch (tinfo); |
75c0bdf4 | 758 | |
8d0050ea TW |
759 | if (btrace_is_empty (tinfo)) |
760 | Py_RETURN_NONE; | |
75c0bdf4 | 761 | |
8d0050ea TW |
762 | btrace_call_begin (&iterator, &tinfo->btrace); |
763 | first = btrace_call_number (&iterator); | |
75c0bdf4 | 764 | |
8d0050ea TW |
765 | btrace_call_end (&iterator, &tinfo->btrace); |
766 | last = btrace_call_number (&iterator); | |
75c0bdf4 | 767 | |
14f819c8 | 768 | return btpy_list_new (record->ptid, first, last, 1, &recpy_func_type); |
75c0bdf4 TW |
769 | } |
770 | ||
771 | /* Implementation of BtraceRecord.goto (self, BtraceInstruction) -> None. */ | |
772 | ||
773 | PyObject * | |
774 | recpy_bt_goto (PyObject *self, PyObject *args) | |
775 | { | |
ae20e79a TW |
776 | const recpy_record_object * const record = (recpy_record_object *) self; |
777 | struct thread_info * const tinfo = find_thread_ptid (record->ptid); | |
0ed5da75 | 778 | const recpy_element_object *obj; |
75c0bdf4 TW |
779 | |
780 | if (tinfo == NULL || btrace_is_empty (tinfo)) | |
781 | return PyErr_Format (gdbpy_gdb_error, _("Empty branch trace.")); | |
782 | ||
783 | if (!PyArg_ParseTuple (args, "O", &obj)) | |
784 | return NULL; | |
785 | ||
0ed5da75 | 786 | if (Py_TYPE (obj) != &recpy_insn_type) |
75c0bdf4 TW |
787 | return PyErr_Format (PyExc_TypeError, _("Argument must be instruction.")); |
788 | ||
789 | TRY | |
790 | { | |
791 | struct btrace_insn_iterator iter; | |
792 | ||
793 | btrace_insn_end (&iter, &tinfo->btrace); | |
794 | ||
795 | if (btrace_insn_number (&iter) == obj->number) | |
796 | target_goto_record_end (); | |
797 | else | |
798 | target_goto_record (obj->number); | |
799 | } | |
800 | CATCH (except, RETURN_MASK_ALL) | |
801 | { | |
802 | GDB_PY_HANDLE_EXCEPTION (except); | |
803 | } | |
804 | END_CATCH | |
805 | ||
806 | Py_RETURN_NONE; | |
807 | } | |
808 | ||
75c0bdf4 TW |
809 | /* BtraceList methods. */ |
810 | ||
811 | struct PyMethodDef btpy_list_methods[] = | |
812 | { | |
813 | { "count", btpy_list_count, METH_O, "count number of occurences"}, | |
814 | { "index", btpy_list_index, METH_O, "index of entry"}, | |
815 | {NULL} | |
816 | }; | |
817 | ||
818 | /* BtraceList sequence methods. */ | |
819 | ||
820 | static PySequenceMethods btpy_list_sequence_methods = | |
821 | { | |
822 | NULL | |
823 | }; | |
824 | ||
825 | /* BtraceList mapping methods. Necessary for slicing. */ | |
826 | ||
827 | static PyMappingMethods btpy_list_mapping_methods = | |
828 | { | |
829 | NULL | |
830 | }; | |
831 | ||
832 | /* Sets up the btrace record API. */ | |
833 | ||
834 | int | |
835 | gdbpy_initialize_btrace (void) | |
836 | { | |
75c0bdf4 TW |
837 | btpy_list_type.tp_new = PyType_GenericNew; |
838 | btpy_list_type.tp_flags = Py_TPFLAGS_DEFAULT; | |
839 | btpy_list_type.tp_basicsize = sizeof (btpy_list_object); | |
840 | btpy_list_type.tp_name = "gdb.BtraceObjectList"; | |
841 | btpy_list_type.tp_doc = "GDB btrace list object"; | |
842 | btpy_list_type.tp_methods = btpy_list_methods; | |
843 | btpy_list_type.tp_as_sequence = &btpy_list_sequence_methods; | |
844 | btpy_list_type.tp_as_mapping = &btpy_list_mapping_methods; | |
845 | btpy_list_type.tp_richcompare = btpy_list_richcompare; | |
846 | ||
847 | btpy_list_sequence_methods.sq_item = btpy_list_item; | |
848 | btpy_list_sequence_methods.sq_length = btpy_list_length; | |
849 | btpy_list_sequence_methods.sq_contains = btpy_list_contains; | |
850 | ||
851 | btpy_list_mapping_methods.mp_subscript = btpy_list_slice; | |
852 | ||
14f819c8 | 853 | return PyType_Ready (&btpy_list_type); |
75c0bdf4 | 854 | } |